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wellKnownSymbol = require('../internals/well-known-symbol');\n\nvar TO_STRING_TAG = wellKnownSymbol('toStringTag');\nvar test = {};\n\ntest[TO_STRING_TAG] = 'z';\n\nmodule.exports = String(test) === '[object z]';\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});function _classCallCheck(instance,Constructor){if(!(instance instanceof Constructor)){throw new TypeError(\"Cannot call a class as a function\");}}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n *//**\n * @class\n * @ignore\n */var EventStream=function EventStream(){_classCallCheck(this,EventStream);this.adaptionSet=null;this.representation=null;this.period=null;this.timescale=1;this.value='';this.schemeIdUri='';};exports.default=EventStream;\n//# sourceMappingURL=EventStream.js.map\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _typeof=typeof Symbol===\"function\"&&typeof Symbol.iterator===\"symbol\"?function(obj){return typeof obj;}:function(obj){return obj&&typeof Symbol===\"function\"&&obj.constructor===Symbol&&obj!==Symbol.prototype?\"symbol\":typeof obj;};/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n */var _CommonEncryption=require('../CommonEncryption');var _CommonEncryption2=_interopRequireDefault(_CommonEncryption);var _MediaCapability=require('../vo/MediaCapability');var _MediaCapability2=_interopRequireDefault(_MediaCapability);var _KeySystemConfiguration=require('../vo/KeySystemConfiguration');var _KeySystemConfiguration2=_interopRequireDefault(_KeySystemConfiguration);var _ProtectionErrors=require('../errors/ProtectionErrors');var _ProtectionErrors2=_interopRequireDefault(_ProtectionErrors);var _DashJSError=require('../../vo/DashJSError');var _DashJSError2=_interopRequireDefault(_DashJSError);function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}var NEEDKEY_BEFORE_INITIALIZE_RETRIES=5;var NEEDKEY_BEFORE_INITIALIZE_TIMEOUT=500;var LICENSE_SERVER_REQUEST_RETRIES=3;var LICENSE_SERVER_REQUEST_RETRY_INTERVAL=1000;var LICENSE_SERVER_REQUEST_DEFAULT_TIMEOUT=8000;/**\n * @module ProtectionController\n * @description Provides access to media protection information and functionality.  Each\n * ProtectionController manages a single {@link MediaPlayer.models.ProtectionModel}\n * which encapsulates a set of protection information (EME APIs, selected key system,\n * key sessions).  The APIs of ProtectionController mostly align with the latest EME\n * APIs.  Key system selection is mostly automated when combined with app-overrideable\n * functionality provided in {@link ProtectionKeyController}.\n * @todo ProtectionController does almost all of its tasks automatically after init() is\n * called.  Applications might want more control over this process and want to go through\n * each step manually (key system selection, session creation, session maintenance).\n * @param {Object} config\n */function ProtectionController(config){config=config||{};var protectionKeyController=config.protectionKeyController;var protectionModel=config.protectionModel;var eventBus=config.eventBus;var events=config.events;var debug=config.debug;var BASE64=config.BASE64;var constants=config.constants;var needkeyRetries=[];var instance=void 0,logger=void 0,pendingNeedKeyData=void 0,mediaInfoArr=void 0,protDataSet=void 0,sessionType=void 0,robustnessLevel=void 0,keySystem=void 0;function setup(){logger=debug.getLogger(instance);pendingNeedKeyData=[];mediaInfoArr=[];sessionType='temporary';robustnessLevel='';}function checkConfig(){if(!eventBus||!eventBus.hasOwnProperty('on')||!protectionKeyController||!protectionKeyController.hasOwnProperty('getSupportedKeySystemsFromContentProtection')){throw new Error('Missing config parameter(s)');}}/**\n     * Initialize this protection system with a given audio\n     * or video stream information.\n     *\n     * @param {StreamInfo} [mediaInfo] Media information\n     * @memberof module:ProtectionController\n     * @instance\n     * @todo This API will change when we have better support for allowing applications\n     * to select different adaptation sets for playback.  Right now it is clunky for\n     * applications to create {@link StreamInfo} with the right information,\n     * @ignore\n     */function initializeForMedia(mediaInfo){// Not checking here if a session for similar KS/KID combination is already created\n// because still don't know which keysystem will be selected.\n// Once Keysystem is selected and before creating the session, we will do that check\n// so we create the strictly necessary DRM sessions\nif(!mediaInfo){throw new Error('mediaInfo can not be null or undefined');}checkConfig();eventBus.on(events.INTERNAL_KEY_MESSAGE,onKeyMessage,this);eventBus.on(events.INTERNAL_KEY_STATUS_CHANGED,onKeyStatusChanged,this);mediaInfoArr.push(mediaInfo);// ContentProtection elements are specified at the AdaptationSet level, so the CP for audio\n// and video will be the same.  Just use one valid MediaInfo object\nvar supportedKS=protectionKeyController.getSupportedKeySystemsFromContentProtection(mediaInfo.contentProtection);if(supportedKS&&supportedKS.length>0){selectKeySystem(supportedKS,true);}}/**\n     * Returns a set of supported key systems and CENC initialization data\n     * from the given array of ContentProtection elements.  Only\n     * key systems that are supported by this player will be returned.\n     * Key systems are returned in priority order (highest first).\n     *\n     * @param {Array.<Object>} cps - array of content protection elements parsed\n     * from the manifest\n     * @returns {Array.<Object>} array of objects indicating which supported key\n     * systems were found.  Empty array is returned if no\n     * supported key systems were found\n     * @memberof module:ProtectionKeyController\n     * @instance\n     * @ignore\n     */function getSupportedKeySystemsFromContentProtection(cps){checkConfig();return protectionKeyController.getSupportedKeySystemsFromContentProtection(cps);}/**\n     * Create a new key session associated with the given initialization data from\n     * the MPD or from the PSSH box in the media\n     *\n     * @param {ArrayBuffer} initData the initialization data\n     * @param {Uint8Array} cdmData the custom data to provide to licenser\n     * @memberof module:ProtectionController\n     * @instance\n     * @fires ProtectionController#KeySessionCreated\n     * @todo In older versions of the EME spec, there was a one-to-one relationship between\n     * initialization data and key sessions.  That is no longer true in the latest APIs.  This\n     * API will need to modified (and a new \"generateRequest(keySession, initData)\" API created)\n     * to come up to speed with the latest EME standard\n     * @ignore\n     */function createKeySession(initData,cdmData){var initDataForKS=_CommonEncryption2.default.getPSSHForKeySystem(keySystem,initData);var protData=getProtData(keySystem);if(initDataForKS){// Check for duplicate initData\nvar currentInitData=protectionModel.getAllInitData();for(var i=0;i<currentInitData.length;i++){if(protectionKeyController.initDataEquals(initDataForKS,currentInitData[i])){logger.warn('DRM: Ignoring initData because we have already seen it!');return;}}try{protectionModel.createKeySession(initDataForKS,protData,getSessionType(keySystem),cdmData);}catch(error){eventBus.trigger(events.KEY_SESSION_CREATED,{data:null,error:new _DashJSError2.default(_ProtectionErrors2.default.KEY_SESSION_CREATED_ERROR_CODE,_ProtectionErrors2.default.KEY_SESSION_CREATED_ERROR_MESSAGE+error.message)});}}else if(initData){protectionModel.createKeySession(initData,protData,getSessionType(keySystem),cdmData);}else{eventBus.trigger(events.KEY_SESSION_CREATED,{data:null,error:new _DashJSError2.default(_ProtectionErrors2.default.KEY_SESSION_CREATED_ERROR_CODE,_ProtectionErrors2.default.KEY_SESSION_CREATED_ERROR_MESSAGE+'Selected key system is '+(keySystem?keySystem.systemString:null)+'.  needkey/encrypted event contains no initData corresponding to that key system!')});}}/**\n     * Loads a key session with the given session ID from persistent storage.  This\n     * essentially creates a new key session\n     *\n     * @param {string} sessionID\n     * @param {string} initData\n     * @memberof module:ProtectionController\n     * @instance\n     * @fires ProtectionController#KeySessionCreated\n     * @ignore\n     */function loadKeySession(sessionID,initData){checkConfig();protectionModel.loadKeySession(sessionID,initData,getSessionType(keySystem));}/**\n     * Removes the given key session from persistent storage and closes the session\n     * as if {@link ProtectionController#closeKeySession}\n     * was called\n     *\n     * @param {SessionToken} sessionToken the session\n     * token\n     * @memberof module:ProtectionController\n     * @instance\n     * @fires ProtectionController#KeySessionRemoved\n     * @fires ProtectionController#KeySessionClosed\n     * @ignore\n     */function removeKeySession(sessionToken){checkConfig();protectionModel.removeKeySession(sessionToken);}/**\n     * Closes the key session and releases all associated decryption keys.  These\n     * keys will no longer be available for decrypting media\n     *\n     * @param {SessionToken} sessionToken the session\n     * token\n     * @memberof module:ProtectionController\n     * @instance\n     * @fires ProtectionController#KeySessionClosed\n     * @ignore\n     */function closeKeySession(sessionToken){checkConfig();protectionModel.closeKeySession(sessionToken);}/**\n     * Sets a server certificate for use by the CDM when signing key messages\n     * intended for a particular license server.  This will fire\n     * an error event if a key system has not yet been selected.\n     *\n     * @param {ArrayBuffer} serverCertificate a CDM-specific license server\n     * certificate\n     * @memberof module:ProtectionController\n     * @instance\n     * @fires ProtectionController#ServerCertificateUpdated\n     */function setServerCertificate(serverCertificate){checkConfig();protectionModel.setServerCertificate(serverCertificate);}/**\n     * Associate this protection system with the given HTMLMediaElement.  This\n     * causes the system to register for needkey/encrypted events from the given\n     * element and provides a destination for setting of MediaKeys\n     *\n     * @param {HTMLMediaElement} element the media element to which the protection\n     * system should be associated\n     * @memberof module:ProtectionController\n     * @instance\n     */function setMediaElement(element){checkConfig();if(element){protectionModel.setMediaElement(element);eventBus.on(events.NEED_KEY,onNeedKey,this);}else if(element===null){protectionModel.setMediaElement(element);eventBus.off(events.NEED_KEY,onNeedKey,this);}}/**\n     * Sets the session type to use when creating key sessions.  Either \"temporary\" or\n     * \"persistent-license\".  Default is \"temporary\".\n     *\n     * @param {string} value the session type\n     * @memberof module:ProtectionController\n     * @instance\n     */function setSessionType(value){sessionType=value;}/**\n     * Sets the robustness level for video and audio capabilities. Optional to remove Chrome warnings.\n     * Possible values are SW_SECURE_CRYPTO, SW_SECURE_DECODE, HW_SECURE_CRYPTO, HW_SECURE_CRYPTO, HW_SECURE_DECODE, HW_SECURE_ALL.\n     *\n     * @param {string} level the robustness level\n     * @memberof module:ProtectionController\n     * @instance\n     */function setRobustnessLevel(level){robustnessLevel=level;}/**\n     * Attach KeySystem-specific data to use for license acquisition with EME\n     *\n     * @param {Object} data an object containing property names corresponding to\n     * key system name strings (e.g. \"org.w3.clearkey\") and associated values\n     * being instances of {@link ProtectionData}\n     * @memberof module:ProtectionController\n     * @instance\n     * @ignore\n     */function setProtectionData(data){protDataSet=data;protectionKeyController.setProtectionData(data);}/**\n     * Stop method is called when current playback is stopped/resetted.\n     *\n     * @memberof module:ProtectionController\n     * @instance\n     */function stop(){if(protectionModel){protectionModel.stop();}}/**\n     * Destroys all protection data associated with this protection set.  This includes\n     * deleting all key sessions. In the case of persistent key sessions, the sessions\n     * will simply be unloaded and not deleted.  Additionally, if this protection set is\n     * associated with a HTMLMediaElement, it will be detached from that element.\n     *\n     * @memberof module:ProtectionController\n     * @instance\n     * @ignore\n     */function reset(){checkConfig();eventBus.off(events.INTERNAL_KEY_MESSAGE,onKeyMessage,this);eventBus.off(events.INTERNAL_KEY_STATUS_CHANGED,onKeyStatusChanged,this);setMediaElement(null);keySystem=undefined;//TODO-Refactor look at why undefined is needed for this. refactor\nif(protectionModel){protectionModel.reset();protectionModel=null;}needkeyRetries.forEach(function(retryTimeout){return clearTimeout(retryTimeout);});needkeyRetries=[];mediaInfoArr=[];}///////////////\n// Private\n///////////////\nfunction getProtData(keySystem){var protData=null;if(keySystem){var keySystemString=keySystem.systemString;if(protDataSet){protData=keySystemString in protDataSet?protDataSet[keySystemString]:null;}}return protData;}function getKeySystemConfiguration(keySystem){var protData=getProtData(keySystem);var audioCapabilities=[];var videoCapabilities=[];var audioRobustness=protData&&protData.audioRobustness&&protData.audioRobustness.length>0?protData.audioRobustness:robustnessLevel;var videoRobustness=protData&&protData.videoRobustness&&protData.videoRobustness.length>0?protData.videoRobustness:robustnessLevel;var ksSessionType=getSessionType(keySystem);var distinctiveIdentifier=protData&&protData.distinctiveIdentifier?protData.distinctiveIdentifier:'optional';var persistentState=protData&&protData.persistentState?protData.persistentState:ksSessionType==='temporary'?'optional':'required';mediaInfoArr.forEach(function(media){if(media.type===constants.AUDIO){audioCapabilities.push(new _MediaCapability2.default(media.codec,audioRobustness));}else if(media.type===constants.VIDEO){videoCapabilities.push(new _MediaCapability2.default(media.codec,videoRobustness));}});return new _KeySystemConfiguration2.default(audioCapabilities,videoCapabilities,distinctiveIdentifier,persistentState,[ksSessionType]);}function getSessionType(keySystem){var protData=getProtData(keySystem);var ksSessionType=protData&&protData.sessionType?protData.sessionType:sessionType;return ksSessionType;}function selectKeySystem(supportedKS,fromManifest){var self=this;var requestedKeySystems=[];// Reorder key systems according to priority order provided in protectionData\nsupportedKS=supportedKS.sort(function(ksA,ksB){var indexA=protDataSet&&protDataSet[ksA.ks.systemString]&&protDataSet[ksA.ks.systemString].priority>=0?protDataSet[ksA.ks.systemString].priority:supportedKS.length;var indexB=protDataSet&&protDataSet[ksB.ks.systemString]&&protDataSet[ksB.ks.systemString].priority>=0?protDataSet[ksB.ks.systemString].priority:supportedKS.length;return indexA-indexB;});var ksIdx=void 0;if(keySystem){// We have a key system\nfor(ksIdx=0;ksIdx<supportedKS.length;ksIdx++){if(keySystem===supportedKS[ksIdx].ks){var _ret=function(){requestedKeySystems.push({ks:supportedKS[ksIdx].ks,configs:[getKeySystemConfiguration(keySystem)]});// Ensure that we would be granted key system access using the key\n// system and codec information\nvar onKeySystemAccessComplete=function onKeySystemAccessComplete(event){eventBus.off(events.KEY_SYSTEM_ACCESS_COMPLETE,onKeySystemAccessComplete,self);if(event.error){if(!fromManifest){eventBus.trigger(events.KEY_SYSTEM_SELECTED,{error:new _DashJSError2.default(_ProtectionErrors2.default.KEY_SYSTEM_ACCESS_DENIED_ERROR_CODE,_ProtectionErrors2.default.KEY_SYSTEM_ACCESS_DENIED_ERROR_MESSAGE+event.error)});}}else{logger.info('DRM: KeySystem Access Granted');eventBus.trigger(events.KEY_SYSTEM_SELECTED,{data:event.data});if(supportedKS[ksIdx].sessionId){// Load MediaKeySession with sessionId\nloadKeySession(supportedKS[ksIdx].sessionId,supportedKS[ksIdx].initData);}else if(supportedKS[ksIdx].initData){// Create new MediaKeySession with initData\ncreateKeySession(supportedKS[ksIdx].initData,supportedKS[ksIdx].cdmData);}}};eventBus.on(events.KEY_SYSTEM_ACCESS_COMPLETE,onKeySystemAccessComplete,self);protectionModel.requestKeySystemAccess(requestedKeySystems);return'break';}();if(_ret==='break')break;}}}else if(keySystem===undefined){// First time through, so we need to select a key system\nkeySystem=null;pendingNeedKeyData.push(supportedKS);// Add all key systems to our request list since we have yet to select a key system\nfor(var i=0;i<supportedKS.length;i++){requestedKeySystems.push({ks:supportedKS[i].ks,configs:[getKeySystemConfiguration(supportedKS[i].ks)]});}var keySystemAccess=void 0;var onKeySystemAccessComplete=function onKeySystemAccessComplete(event){eventBus.off(events.KEY_SYSTEM_ACCESS_COMPLETE,onKeySystemAccessComplete,self);if(event.error){keySystem=undefined;eventBus.off(events.INTERNAL_KEY_SYSTEM_SELECTED,onKeySystemSelected,self);if(!fromManifest){eventBus.trigger(events.KEY_SYSTEM_SELECTED,{data:null,error:new _DashJSError2.default(_ProtectionErrors2.default.KEY_SYSTEM_ACCESS_DENIED_ERROR_CODE,_ProtectionErrors2.default.KEY_SYSTEM_ACCESS_DENIED_ERROR_MESSAGE+event.error)});}}else{keySystemAccess=event.data;logger.info('DRM: KeySystem Access Granted ('+keySystemAccess.keySystem.systemString+')!  Selecting key system...');protectionModel.selectKeySystem(keySystemAccess);}};var onKeySystemSelected=function onKeySystemSelected(event){eventBus.off(events.INTERNAL_KEY_SYSTEM_SELECTED,onKeySystemSelected,self);eventBus.off(events.KEY_SYSTEM_ACCESS_COMPLETE,onKeySystemAccessComplete,self);if(!event.error){if(!protectionModel){return;}keySystem=protectionModel.getKeySystem();eventBus.trigger(events.KEY_SYSTEM_SELECTED,{data:keySystemAccess});// Set server certificate from protData\nvar protData=getProtData(keySystem);if(protData&&protData.serverCertificate&&protData.serverCertificate.length>0){protectionModel.setServerCertificate(BASE64.decodeArray(protData.serverCertificate).buffer);}for(var _i=0;_i<pendingNeedKeyData.length;_i++){for(ksIdx=0;ksIdx<pendingNeedKeyData[_i].length;ksIdx++){if(keySystem===pendingNeedKeyData[_i][ksIdx].ks){// For Clearkey: if parameters for generating init data was provided by the user, use them for generating\n// initData and overwrite possible initData indicated in encrypted event (EME)\nif(protectionKeyController.isClearKey(keySystem)&&protData&&protData.hasOwnProperty('clearkeys')){var initData={kids:Object.keys(protData.clearkeys)};pendingNeedKeyData[_i][ksIdx].initData=new TextEncoder().encode(JSON.stringify(initData));}if(pendingNeedKeyData[_i][ksIdx].sessionId){// Load MediaKeySession with sessionId\nloadKeySession(pendingNeedKeyData[_i][ksIdx].sessionId,pendingNeedKeyData[_i][ksIdx].initData);}else if(pendingNeedKeyData[_i][ksIdx].initData!==null){// Create new MediaKeySession with initData\ncreateKeySession(pendingNeedKeyData[_i][ksIdx].initData,pendingNeedKeyData[_i][ksIdx].cdmData);}break;}}}}else{keySystem=undefined;if(!fromManifest){eventBus.trigger(events.KEY_SYSTEM_SELECTED,{data:null,error:new _DashJSError2.default(_ProtectionErrors2.default.KEY_SYSTEM_ACCESS_DENIED_ERROR_CODE,_ProtectionErrors2.default.KEY_SYSTEM_ACCESS_DENIED_ERROR_MESSAGE+'Error selecting key system! -- '+event.error)});}}};eventBus.on(events.INTERNAL_KEY_SYSTEM_SELECTED,onKeySystemSelected,self);eventBus.on(events.KEY_SYSTEM_ACCESS_COMPLETE,onKeySystemAccessComplete,self);protectionModel.requestKeySystemAccess(requestedKeySystems);}else{// We are in the process of selecting a key system, so just save the data\npendingNeedKeyData.push(supportedKS);}}function sendLicenseRequestCompleteEvent(data,error){eventBus.trigger(events.LICENSE_REQUEST_COMPLETE,{data:data,error:error});}function onKeyStatusChanged(e){if(e.error){eventBus.trigger(events.KEY_STATUSES_CHANGED,{data:null,error:e.error});}else{logger.debug('DRM: key status = '+e.status);}}function onKeyMessage(e){logger.debug('DRM: onKeyMessage');// Dispatch event to applications indicating we received a key message\nvar keyMessage=e.data;eventBus.trigger(events.KEY_MESSAGE,{data:keyMessage});var messageType=keyMessage.messageType?keyMessage.messageType:'license-request';var message=keyMessage.message;var sessionToken=keyMessage.sessionToken;var protData=getProtData(keySystem);var keySystemString=keySystem?keySystem.systemString:null;var licenseServerData=protectionKeyController.getLicenseServer(keySystem,protData,messageType);var eventData={sessionToken:sessionToken,messageType:messageType};// Ensure message from CDM is not empty\nif(!message||message.byteLength===0){sendLicenseRequestCompleteEvent(eventData,new _DashJSError2.default(_ProtectionErrors2.default.MEDIA_KEY_MESSAGE_NO_CHALLENGE_ERROR_CODE,_ProtectionErrors2.default.MEDIA_KEY_MESSAGE_NO_CHALLENGE_ERROR_MESSAGE));return;}// Message not destined for license server\nif(!licenseServerData){logger.debug('DRM: License server request not required for this message (type = '+e.data.messageType+').  Session ID = '+sessionToken.getSessionID());sendLicenseRequestCompleteEvent(eventData);return;}// Perform any special handling for ClearKey\nif(protectionKeyController.isClearKey(keySystem)){var clearkeys=protectionKeyController.processClearKeyLicenseRequest(keySystem,protData,message);if(clearkeys){logger.debug('DRM: ClearKey license request handled by application!');sendLicenseRequestCompleteEvent(eventData);protectionModel.updateKeySession(sessionToken,clearkeys);return;}}// All remaining key system scenarios require a request to a remote license server\n// Determine license server URL\nvar url=null;if(protData&&protData.serverURL){var serverURL=protData.serverURL;if(typeof serverURL==='string'&&serverURL!==''){url=serverURL;}else if((typeof serverURL==='undefined'?'undefined':_typeof(serverURL))==='object'&&serverURL.hasOwnProperty(messageType)){url=serverURL[messageType];}}else if(protData&&protData.laURL&&protData.laURL!==''){// TODO: Deprecated!\nurl=protData.laURL;}else{url=keySystem.getLicenseServerURLFromInitData(_CommonEncryption2.default.getPSSHData(sessionToken.initData));if(!url){url=e.data.laURL;}}// Possibly update or override the URL based on the message\nurl=licenseServerData.getServerURLFromMessage(url,message,messageType);// Ensure valid license server URL\nif(!url){sendLicenseRequestCompleteEvent(eventData,new _DashJSError2.default(_ProtectionErrors2.default.MEDIA_KEY_MESSAGE_NO_LICENSE_SERVER_URL_ERROR_CODE,_ProtectionErrors2.default.MEDIA_KEY_MESSAGE_NO_LICENSE_SERVER_URL_ERROR_MESSAGE));return;}// Set optional XMLHttpRequest headers from protection data and message\nvar reqHeaders={};var withCredentials=false;var updateHeaders=function updateHeaders(headers){if(headers){for(var key in headers){if('authorization'===key.toLowerCase()){withCredentials=true;}reqHeaders[key]=headers[key];}}};if(protData){updateHeaders(protData.httpRequestHeaders);}updateHeaders(keySystem.getRequestHeadersFromMessage(message));// Overwrite withCredentials property from protData if present\nif(protData&&typeof protData.withCredentials=='boolean'){withCredentials=protData.withCredentials;}var reportError=function reportError(xhr,eventData,keySystemString,messageType){var errorMsg=xhr.response?licenseServerData.getErrorResponse(xhr.response,keySystemString,messageType):'NONE';sendLicenseRequestCompleteEvent(eventData,new _DashJSError2.default(_ProtectionErrors2.default.MEDIA_KEY_MESSAGE_LICENSER_ERROR_CODE,_ProtectionErrors2.default.MEDIA_KEY_MESSAGE_LICENSER_ERROR_MESSAGE+keySystemString+' update, XHR complete. status is \"'+xhr.statusText+'\" ('+xhr.status+'), readyState is '+xhr.readyState+'.  Response is '+errorMsg));};var onLoad=function onLoad(xhr){if(!protectionModel){return;}if(xhr.status===200){var licenseMessage=licenseServerData.getLicenseMessage(xhr.response,keySystemString,messageType);if(licenseMessage!==null){sendLicenseRequestCompleteEvent(eventData);protectionModel.updateKeySession(sessionToken,licenseMessage);}else{reportError(xhr,eventData,keySystemString,messageType);}}else{reportError(xhr,eventData,keySystemString,messageType);}};var onAbort=function onAbort(xhr){sendLicenseRequestCompleteEvent(eventData,new _DashJSError2.default(_ProtectionErrors2.default.MEDIA_KEY_MESSAGE_LICENSER_ERROR_CODE,_ProtectionErrors2.default.MEDIA_KEY_MESSAGE_LICENSER_ERROR_MESSAGE+keySystemString+' update, XHR aborted. status is \"'+xhr.statusText+'\" ('+xhr.status+'), readyState is '+xhr.readyState));};var onError=function onError(xhr){sendLicenseRequestCompleteEvent(eventData,new _DashJSError2.default(_ProtectionErrors2.default.MEDIA_KEY_MESSAGE_LICENSER_ERROR_CODE,_ProtectionErrors2.default.MEDIA_KEY_MESSAGE_LICENSER_ERROR_MESSAGE+keySystemString+' update, XHR error. status is \"'+xhr.statusText+'\" ('+xhr.status+'), readyState is '+xhr.readyState));};var reqPayload=keySystem.getLicenseRequestFromMessage(message);var reqMethod=licenseServerData.getHTTPMethod(messageType);var responseType=licenseServerData.getResponseType(keySystemString,messageType);var timeout=protData&&!isNaN(protData.httpTimeout)?protData.httpTimeout:LICENSE_SERVER_REQUEST_DEFAULT_TIMEOUT;doLicenseRequest(url,reqHeaders,reqMethod,responseType,withCredentials,reqPayload,LICENSE_SERVER_REQUEST_RETRIES,timeout,onLoad,onAbort,onError);}// Implement license requests with a retry mechanism to avoid temporary network issues to affect playback experience\nfunction doLicenseRequest(url,headers,method,responseType,withCredentials,payload,retriesCount,timeout,onLoad,onAbort,onError){var xhr=new XMLHttpRequest();xhr.open(method,url,true);xhr.responseType=responseType;xhr.withCredentials=withCredentials;if(timeout>0){xhr.timeout=timeout;}for(var key in headers){xhr.setRequestHeader(key,headers[key]);}var retryRequest=function retryRequest(){// fail silently and retry\nretriesCount--;setTimeout(function(){doLicenseRequest(url,headers,method,responseType,withCredentials,payload,retriesCount,timeout,onLoad,onAbort,onError);},LICENSE_SERVER_REQUEST_RETRY_INTERVAL);};xhr.onload=function(){if(this.status===200||retriesCount<=0){onLoad(this);}else{logger.warn('License request failed ('+this.status+'). Retrying it... Pending retries: '+retriesCount);retryRequest();}};xhr.ontimeout=xhr.onerror=function(){if(retriesCount<=0){onError(this);}else{logger.warn('License request network request failed . Retrying it... Pending retries: '+retriesCount);retryRequest();}};xhr.onabort=function(){onAbort(this);};xhr.send(payload);}function onNeedKey(event,retry){logger.debug('DRM: onNeedKey');// Ignore non-cenc initData\nif(event.key.initDataType!=='cenc'){logger.warn('DRM:  Only \\'cenc\\' initData is supported!  Ignoring initData of type: '+event.key.initDataType);return;}if(mediaInfoArr.length===0){logger.warn('DRM: onNeedKey called before initializeForMedia, wait until initialized');retry=typeof retry==='undefined'?1:retry+1;if(retry<NEEDKEY_BEFORE_INITIALIZE_RETRIES){needkeyRetries.push(setTimeout(function(){onNeedKey(event,retry);},NEEDKEY_BEFORE_INITIALIZE_TIMEOUT));return;}}// Some browsers return initData as Uint8Array (IE), some as ArrayBuffer (Chrome).\n// Convert to ArrayBuffer\nvar abInitData=event.key.initData;if(ArrayBuffer.isView(abInitData)){abInitData=abInitData.buffer;}// If key system has already been selected and initData already seen, then do nothing\nif(keySystem){var initDataForKS=_CommonEncryption2.default.getPSSHForKeySystem(keySystem,abInitData);if(initDataForKS){// Check for duplicate initData\nvar currentInitData=protectionModel.getAllInitData();for(var i=0;i<currentInitData.length;i++){if(protectionKeyController.initDataEquals(initDataForKS,currentInitData[i])){logger.warn('DRM: Ignoring initData because we have already seen it!');return;}}}}logger.debug('DRM: initData:',String.fromCharCode.apply(null,new Uint8Array(abInitData)));var supportedKS=protectionKeyController.getSupportedKeySystems(abInitData,protDataSet);if(supportedKS.length===0){logger.debug('DRM: Received needkey event with initData, but we don\\'t support any of the key systems!');return;}selectKeySystem(supportedKS,false);}function getKeySystems(){return protectionKeyController?protectionKeyController.getKeySystems():[];}function setKeySystems(keySystems){if(protectionKeyController){protectionKeyController.setKeySystems(keySystems);}}instance={initializeForMedia:initializeForMedia,createKeySession:createKeySession,loadKeySession:loadKeySession,removeKeySession:removeKeySession,closeKeySession:closeKeySession,setServerCertificate:setServerCertificate,setMediaElement:setMediaElement,setSessionType:setSessionType,setRobustnessLevel:setRobustnessLevel,setProtectionData:setProtectionData,getSupportedKeySystemsFromContentProtection:getSupportedKeySystemsFromContentProtection,getKeySystems:getKeySystems,setKeySystems:setKeySystems,stop:stop,reset:reset};setup();return instance;}ProtectionController.__dashjs_factory_name='ProtectionController';exports.default=dashjs.FactoryMaker.getClassFactory(ProtectionController);/* jshint ignore:line */\n//# sourceMappingURL=ProtectionController.js.map\n","var aFunction = require('../internals/a-function');\n\n// optional / simple context binding\nmodule.exports = function (fn, that, length) {\n  aFunction(fn);\n  if (that === undefined) return fn;\n  switch (length) {\n    case 0: return function () {\n      return fn.call(that);\n    };\n    case 1: return function (a) {\n      return fn.call(that, a);\n    };\n    case 2: return function (a, b) {\n      return fn.call(that, a, b);\n    };\n    case 3: return function (a, b, c) {\n      return fn.call(that, a, b, c);\n    };\n  }\n  return function (/* ...args */) {\n    return fn.apply(that, arguments);\n  };\n};\n","\"use strict\";Object.defineProperty(exports,\"__esModule\",{value:true});function _classCallCheck(instance,Constructor){if(!(instance instanceof Constructor)){throw new TypeError(\"Cannot call a class as a function\");}}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n *//**\n * @class\n * @ignore\n */var DroppedFrames=/**\n     * @description This Object holds reference to DroppedFrames count and the time it was recorded.\n     */function DroppedFrames(){_classCallCheck(this,DroppedFrames);/**\n         * Real-Time | Time of the measurement of the dropped frames.\n         * @public\n         */this.time=null;/**\n         * Number of dropped frames\n         * @public\n         */this.droppedFrames=null;};exports.default=DroppedFrames;\n//# sourceMappingURL=DroppedFrames.js.map\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _FactoryMaker=require('../../core/FactoryMaker');var _FactoryMaker2=_interopRequireDefault(_FactoryMaker);var _Constants=require('../../streaming/constants/Constants');var _Constants2=_interopRequireDefault(_Constants);var _SegmentsUtils=require('./SegmentsUtils');function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}function ListSegmentsGetter(config,isDynamic){config=config||{};var timelineConverter=config.timelineConverter;var instance=void 0;function checkConfig(){if(!timelineConverter||!timelineConverter.hasOwnProperty('calcPeriodRelativeTimeFromMpdRelativeTime')){throw new Error(_Constants2.default.MISSING_CONFIG_ERROR);}}function getSegmentByIndex(representation,index){checkConfig();if(!representation){return null;}var list=representation.adaptation.period.mpd.manifest.Period_asArray[representation.adaptation.period.index].AdaptationSet_asArray[representation.adaptation.index].Representation_asArray[representation.index].SegmentList;var len=list.SegmentURL_asArray.length;var start=representation.startNumber;var segment=null;if(index<len){var s=list.SegmentURL_asArray[index];segment=(0,_SegmentsUtils.getIndexBasedSegment)(timelineConverter,isDynamic,representation,index);segment.replacementTime=(start+index-1)*representation.segmentDuration;segment.media=s.media?s.media:'';segment.mediaRange=s.mediaRange;segment.index=index;segment.indexRange=s.indexRange;}representation.availableSegmentsNumber=len;return segment;}function getSegmentByTime(representation,requestedTime){checkConfig();if(!representation){return null;}var duration=representation.segmentDuration;if(isNaN(duration)){return null;}var periodTime=timelineConverter.calcPeriodRelativeTimeFromMpdRelativeTime(representation,requestedTime);var index=Math.floor(periodTime/duration);return getSegmentByIndex(representation,index);}instance={getSegmentByIndex:getSegmentByIndex,getSegmentByTime:getSegmentByTime};return instance;}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n */ListSegmentsGetter.__dashjs_factory_name='ListSegmentsGetter';var factory=_FactoryMaker2.default.getClassFactory(ListSegmentsGetter);exports.default=factory;\n//# sourceMappingURL=ListSegmentsGetter.js.map\n","'use strict';\nvar aFunction = require('../internals/a-function');\nvar isObject = require('../internals/is-object');\n\nvar slice = [].slice;\nvar factories = {};\n\nvar construct = function (C, argsLength, args) {\n  if (!(argsLength in factories)) {\n    for (var list = [], i = 0; i < argsLength; i++) list[i] = 'a[' + i + ']';\n    // eslint-disable-next-line no-new-func\n    factories[argsLength] = Function('C,a', 'return new C(' + list.join(',') + ')');\n  } return factories[argsLength](C, args);\n};\n\n// `Function.prototype.bind` method implementation\n// https://tc39.github.io/ecma262/#sec-function.prototype.bind\nmodule.exports = Function.bind || function bind(that /* , ...args */) {\n  var fn = aFunction(this);\n  var partArgs = slice.call(arguments, 1);\n  var boundFunction = function bound(/* args... */) {\n    var args = partArgs.concat(slice.call(arguments));\n    return this instanceof boundFunction ? construct(fn, args.length, args) : fn.apply(that, args);\n  };\n  if (isObject(fn.prototype)) boundFunction.prototype = fn.prototype;\n  return boundFunction;\n};\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _FactoryMaker=require('../../core/FactoryMaker');var _FactoryMaker2=_interopRequireDefault(_FactoryMaker);var _SegmentBaseLoader=require('../SegmentBaseLoader');var _SegmentBaseLoader2=_interopRequireDefault(_SegmentBaseLoader);var _WebmSegmentBaseLoader=require('../WebmSegmentBaseLoader');var _WebmSegmentBaseLoader2=_interopRequireDefault(_WebmSegmentBaseLoader);function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}function SegmentBaseController(config){config=config||{};var context=this.context;var eventBus=config.eventBus;var events=config.events;var dashMetrics=config.dashMetrics;var mediaPlayerModel=config.mediaPlayerModel;var errHandler=config.errHandler;var baseURLController=config.baseURLController;var debug=config.debug;var boxParser=config.boxParser;var requestModifier=config.requestModifier;var errors=config.errors;var instance=void 0,segmentBaseLoader=void 0,webmSegmentBaseLoader=void 0;function setup(){segmentBaseLoader=(0,_SegmentBaseLoader2.default)(context).getInstance();webmSegmentBaseLoader=(0,_WebmSegmentBaseLoader2.default)(context).getInstance();segmentBaseLoader.setConfig({baseURLController:baseURLController,dashMetrics:dashMetrics,mediaPlayerModel:mediaPlayerModel,errHandler:errHandler,eventBus:eventBus,events:events,errors:errors,debug:debug,boxParser:boxParser,requestModifier:requestModifier});webmSegmentBaseLoader.setConfig({baseURLController:baseURLController,dashMetrics:dashMetrics,mediaPlayerModel:mediaPlayerModel,errHandler:errHandler,eventBus:eventBus,events:events,errors:errors,debug:debug,requestModifier:requestModifier});}function isWebM(mimeType){var type=mimeType?mimeType.split('/')[1]:'';return'webm'===type.toLowerCase();}function initialize(){eventBus.on(events.SEGMENTBASE_INIT_REQUEST_NEEDED,onInitSegmentBaseNeeded,instance);eventBus.on(events.SEGMENTBASE_SEGMENTSLIST_REQUEST_NEEDED,onSegmentsListSegmentBaseNeeded,instance);segmentBaseLoader.initialize();webmSegmentBaseLoader.initialize();}function onInitSegmentBaseNeeded(e){if(isWebM(e.mimeType)){webmSegmentBaseLoader.loadInitialization(e.representation);}else{segmentBaseLoader.loadInitialization(e.representation);}}function onSegmentsListSegmentBaseNeeded(e){if(isWebM(e.mimeType)){webmSegmentBaseLoader.loadSegments(e.representation,e.mediaType,e.representation?e.representation.indexRange:null,e.callback);}else{segmentBaseLoader.loadSegments(e.representation,e.mediaType,e.representation?e.representation.indexRange:null,e.callback);}}function reset(){eventBus.off(events.SEGMENTBASE_INIT_REQUEST_NEEDED,onInitSegmentBaseNeeded,instance);eventBus.off(events.SEGMENTBASE_SEGMENTSLIST_REQUEST_NEEDED,onSegmentsListSegmentBaseNeeded,instance);}instance={initialize:initialize,reset:reset};setup();return instance;}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n */SegmentBaseController.__dashjs_factory_name='SegmentBaseController';var factory=_FactoryMaker2.default.getSingletonFactory(SegmentBaseController);exports.default=factory;\n//# sourceMappingURL=SegmentBaseController.js.map\n","var toIndexedObject = require('../internals/to-indexed-object');\nvar nativeGetOwnPropertyNames = require('../internals/object-get-own-property-names').f;\n\nvar toString = {}.toString;\n\nvar windowNames = typeof window == 'object' && window && Object.getOwnPropertyNames\n  ? Object.getOwnPropertyNames(window) : [];\n\nvar getWindowNames = function (it) {\n  try {\n    return nativeGetOwnPropertyNames(it);\n  } catch (error) {\n    return windowNames.slice();\n  }\n};\n\n// fallback for IE11 buggy Object.getOwnPropertyNames with iframe and window\nmodule.exports.f = function getOwnPropertyNames(it) {\n  return windowNames && toString.call(it) == '[object Window]'\n    ? getWindowNames(it)\n    : nativeGetOwnPropertyNames(toIndexedObject(it));\n};\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _DashJSError=require('./vo/DashJSError');var _DashJSError2=_interopRequireDefault(_DashJSError);var _URLLoader=require('./net/URLLoader');var _URLLoader2=_interopRequireDefault(_URLLoader);var _HTTPRequest=require('./vo/metrics/HTTPRequest');var _TextRequest=require('./vo/TextRequest');var _TextRequest2=_interopRequireDefault(_TextRequest);var _EventBus=require('../core/EventBus');var _EventBus2=_interopRequireDefault(_EventBus);var _Events=require('../core/events/Events');var _Events2=_interopRequireDefault(_Events);var _FactoryMaker=require('../core/FactoryMaker');var _FactoryMaker2=_interopRequireDefault(_FactoryMaker);var _Errors=require('../core/errors/Errors');var _Errors2=_interopRequireDefault(_Errors);function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n */function XlinkLoader(config){config=config||{};var RESOLVE_TO_ZERO='urn:mpeg:dash:resolve-to-zero:2013';var context=this.context;var eventBus=(0,_EventBus2.default)(context).getInstance();var urlLoader=(0,_URLLoader2.default)(context).create({errHandler:config.errHandler,dashMetrics:config.dashMetrics,mediaPlayerModel:config.mediaPlayerModel,requestModifier:config.requestModifier,useFetch:config.settings?config.settings.get().streaming.lowLatencyEnabled:null});var instance=void 0;function load(url,element,resolveObject){var report=function report(content,resolveToZero){element.resolved=true;element.resolvedContent=content?content:null;eventBus.trigger(_Events2.default.XLINK_ELEMENT_LOADED,{element:element,resolveObject:resolveObject,error:content||resolveToZero?null:new _DashJSError2.default(_Errors2.default.XLINK_LOADER_LOADING_FAILURE_ERROR_CODE,_Errors2.default.XLINK_LOADER_LOADING_FAILURE_ERROR_MESSAGE+url)});};if(url===RESOLVE_TO_ZERO){report(null,true);}else{var request=new _TextRequest2.default(url,_HTTPRequest.HTTPRequest.XLINK_EXPANSION_TYPE);urlLoader.load({request:request,success:function success(data){report(data);},error:function error(){report(null);}});}}function reset(){if(urlLoader){urlLoader.abort();urlLoader=null;}}instance={load:load,reset:reset};return instance;}XlinkLoader.__dashjs_factory_name='XlinkLoader';exports.default=_FactoryMaker2.default.getClassFactory(XlinkLoader);\n//# sourceMappingURL=XlinkLoader.js.map\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _EventBus=require('../../core/EventBus');var _EventBus2=_interopRequireDefault(_EventBus);var _MediaPlayerEvents=require('../MediaPlayerEvents');var _MediaPlayerEvents2=_interopRequireDefault(_MediaPlayerEvents);var _FactoryMaker=require('../../core/FactoryMaker');var _FactoryMaker2=_interopRequireDefault(_FactoryMaker);var _Debug=require('../../core/Debug');var _Debug2=_interopRequireDefault(_Debug);var _Settings=require('../../core/Settings');var _Settings2=_interopRequireDefault(_Settings);var _HTTPRequest=require('../vo/metrics/HTTPRequest');var _DashManifestModel=require('../../dash/models/DashManifestModel');var _DashManifestModel2=_interopRequireDefault(_DashManifestModel);var _Utils=require('../../core/Utils');var _Utils2=_interopRequireDefault(_Utils);var _Version=require('../../core/Version');function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}var CMCD_REQUEST_FIELD_NAME='Common-Media-Client-Data';/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n */var CMCD_VERSION=1;var DEFAULT_DEVICE_ID='dash.js-v'+(0,_Version.getVersionString)();var BUFFER_STATES={DEFAULT:null,INITIALIZING:1,SEEKING:2,RISK:3,EMPTY:4};var OBJECT_TYPES={MANIFEST:'m',AUDIO:'a',VIDEO:'v',INIT:'i',CAPTION:'c'};var STREAMING_FORMATS={DASH:'d',MSS:'s'};var STREAM_TYPES={VOD:'v',LIVE:'l'};function CmcdModel(){var logger=void 0,dashManifestModel=void 0,instance=void 0,internalData=void 0,abrController=void 0,dashMetrics=void 0,playbackController=void 0;var context=this.context;var eventBus=(0,_EventBus2.default)(context).getInstance();var settings=(0,_Settings2.default)(context).getInstance();function setup(){logger=(0,_Debug2.default)(context).getInstance().getLogger(instance);dashManifestModel=(0,_DashManifestModel2.default)(context).getInstance();_resetInitialSettings();}function initialize(){eventBus.on(_MediaPlayerEvents2.default.PLAYBACK_RATE_CHANGED,_onPlaybackRateChanged,instance);eventBus.on(_MediaPlayerEvents2.default.MANIFEST_LOADED,_onManifestLoaded,instance);eventBus.on(_MediaPlayerEvents2.default.BUFFER_LEVEL_STATE_CHANGED,_onBufferLevelStateChanged,instance);}function setConfig(config){if(!config)return;if(config.abrController){abrController=config.abrController;}if(config.dashMetrics){dashMetrics=config.dashMetrics;}if(config.playbackController){playbackController=config.playbackController;}}function _resetInitialSettings(){internalData={pr:1,nor:null,st:null,sf:null,sid:''+_Utils2.default.generateUuid(),bs:{audio:BUFFER_STATES.INITIALIZING,video:BUFFER_STATES.INITIALIZING},cid:null,did:''+DEFAULT_DEVICE_ID};}function getQueryParameter(request){try{if(settings.get().streaming.cmcd&&settings.get().streaming.cmcd.enabled){var cmcdData=_getCmcdData(request);var finalPayloadString=_buildFinalString(cmcdData);return{key:CMCD_REQUEST_FIELD_NAME,value:finalPayloadString};}return null;}catch(e){return null;}}function _getCmcdData(request){try{var cmcdData=null;if(request.type===_HTTPRequest.HTTPRequest.MPD_TYPE){_setDefaultContentId(request);return _getCmcdDataForMpd(request);}else if(request.type===_HTTPRequest.HTTPRequest.MEDIA_SEGMENT_TYPE){return _getCmcdDataForMediaSegment(request);}else if(request.type===_HTTPRequest.HTTPRequest.INIT_SEGMENT_TYPE){return _getCmcdDataForInitSegment(request);}return cmcdData;}catch(e){return null;}}function _setDefaultContentId(request){try{internalData.cid=''+_Utils2.default.generateHashCode(request.url);}catch(e){}}function _getCmcdDataForMpd(){var data=_getGenericCmcdData();data.ot=''+OBJECT_TYPES.MANIFEST;return data;}function _getCmcdDataForMediaSegment(request){var data=_getGenericCmcdData();var encodedBitrate=_getBitrateByRequest(request);var d=_getObjectDurationByRequest(request);var ot=request.mediaType==='video'?''+OBJECT_TYPES.VIDEO:request.mediaType==='audio'?''+OBJECT_TYPES.AUDIO:request.mediaType==='fragmentedText'?''+OBJECT_TYPES.CAPTION:null;var mtp=_getMeasuredThroughputByType(request.mediaType);var dl=_getDeadlineByType(request.mediaType);var bs=_getBufferStateByRequest(request);if(encodedBitrate){data.br=encodedBitrate;}if(ot){data.ot=ot;}if(!isNaN(d)){data.d=d;}if(!isNaN(mtp)){data.mtp=mtp;}if(!isNaN(dl)){data.dl=dl;}if(!isNaN(bs)&&bs!==null){data.bs=bs;}return data;}function _getCmcdDataForInitSegment(){var data=_getGenericCmcdData();data.ot=''+OBJECT_TYPES.INIT;return data;}function _getGenericCmcdData(){var data={};data.v=CMCD_VERSION;data.sid=settings.get().streaming.cmcd.sid?settings.get().streaming.cmcd.sid:internalData.sid;data.cid=settings.get().streaming.cmcd.cid?settings.get().streaming.cmcd.cid:internalData.cid;data.did=settings.get().streaming.cmcd.did?settings.get().streaming.cmcd.did:internalData.did;data.sid='\"'+data.sid+'\"';data.cid='\"'+data.cid+'\"';data.did='\"'+data.did+'\"';if(!isNaN(internalData.pr)&&internalData.pr!==1&&internalData.pr!==null){data.pr=internalData.pr;}if(internalData.st){data.st=internalData.st;}if(internalData.sf){data.sf=internalData.sf;}return data;}function _getBitrateByRequest(request){try{var quality=request.quality;var bitrateList=request.mediaInfo.bitrateList;return parseInt(bitrateList[quality].bandwidth/1000);}catch(e){return null;}}function _getObjectDurationByRequest(request){try{return!isNaN(request.duration)?Math.round(request.duration*1000):null;}catch(e){return null;}}function _getMeasuredThroughputByType(mediaType){try{return Math.round(abrController.getThroughputHistory().getSafeAverageThroughput(mediaType));}catch(e){return null;}}function _getDeadlineByType(mediaType){try{var playbackRate=internalData.pr;var bufferLevel=dashMetrics.getCurrentBufferLevel(mediaType);if(!isNaN(playbackRate)&&!isNaN(bufferLevel)){return parseInt(bufferLevel/playbackRate*1000);}return null;}catch(e){return null;}}function _getBufferStateByRequest(request){try{var mediaType=request.mediaType;if(internalData.bs[mediaType]!==null){return internalData.bs[mediaType];}var bufferLevel=dashMetrics.getCurrentBufferLevel(mediaType);var duration=request.duration;if(bufferLevel<duration){return BUFFER_STATES.RISK;}return BUFFER_STATES.DEFAULT;}catch(e){}}function _onPlaybackRateChanged(data){try{internalData.pr=data.playbackRate;}catch(e){}}function _onManifestLoaded(data){try{var isDynamic=dashManifestModel.getIsDynamic(data.data);var st=isDynamic?''+STREAM_TYPES.LIVE:''+STREAM_TYPES.VOD;var sf=data.protocol&&data.protocol==='MSS'?''+STREAMING_FORMATS.MSS:''+STREAMING_FORMATS.DASH;internalData.st=''+st;internalData.sf=''+sf;}catch(e){}}function _onBufferLevelStateChanged(data){try{if(data.state&&data.mediaType){var state=null;switch(data.state){case _MediaPlayerEvents2.default.BUFFER_LOADED:state=BUFFER_STATES.DEFAULT;break;case _MediaPlayerEvents2.default.BUFFER_EMPTY:if(playbackController.isSeeking()){state=BUFFER_STATES.SEEKING;}state=BUFFER_STATES.EMPTY;break;default:}internalData.bs[data.mediaType]=state;}}catch(e){}}function _buildFinalString(cmcdData){try{if(!cmcdData){return null;}var keys=Object.keys(cmcdData);var length=keys.length;return keys.reduce(function(acc,key,index){acc+=key+'='+cmcdData[key];if(index<length-1){acc+=',';}return acc;},'');}catch(e){return null;}}function reset(){eventBus.off(_MediaPlayerEvents2.default.PLAYBACK_RATE_CHANGED,_onPlaybackRateChanged,this);eventBus.off(_MediaPlayerEvents2.default.MANIFEST_LOADED,_onManifestLoaded,this);eventBus.off(_MediaPlayerEvents2.default.BUFFER_LEVEL_STATE_CHANGED,_onBufferLevelStateChanged,instance);_resetInitialSettings();}instance={getQueryParameter:getQueryParameter,setConfig:setConfig,reset:reset,initialize:initialize};setup();return instance;}CmcdModel.__dashjs_factory_name='CmcdModel';exports.default=_FactoryMaker2.default.getSingletonFactory(CmcdModel);\n//# sourceMappingURL=CmcdModel.js.map\n","var DESCRIPTORS = require('../internals/descriptors');\nvar propertyIsEnumerableModule = require('../internals/object-property-is-enumerable');\nvar createPropertyDescriptor = require('../internals/create-property-descriptor');\nvar toIndexedObject = require('../internals/to-indexed-object');\nvar toPrimitive = require('../internals/to-primitive');\nvar has = require('../internals/has');\nvar IE8_DOM_DEFINE = require('../internals/ie8-dom-define');\n\nvar nativeGetOwnPropertyDescriptor = Object.getOwnPropertyDescriptor;\n\n// `Object.getOwnPropertyDescriptor` method\n// https://tc39.github.io/ecma262/#sec-object.getownpropertydescriptor\nexports.f = DESCRIPTORS ? nativeGetOwnPropertyDescriptor : function getOwnPropertyDescriptor(O, P) {\n  O = toIndexedObject(O);\n  P = toPrimitive(P, true);\n  if (IE8_DOM_DEFINE) try {\n    return nativeGetOwnPropertyDescriptor(O, P);\n  } catch (error) { /* empty */ }\n  if (has(O, P)) return createPropertyDescriptor(!propertyIsEnumerableModule.f.call(O, P), O[P]);\n};\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _XlinkLoader=require('../XlinkLoader');var _XlinkLoader2=_interopRequireDefault(_XlinkLoader);var _EventBus=require('../../core/EventBus');var _EventBus2=_interopRequireDefault(_EventBus);var _Events=require('../../core/events/Events');var _Events2=_interopRequireDefault(_Events);var _FactoryMaker=require('../../core/FactoryMaker');var _FactoryMaker2=_interopRequireDefault(_FactoryMaker);var _xml2json=require('../../../externals/xml2json');var _xml2json2=_interopRequireDefault(_xml2json);var _URLUtils=require('../utils/URLUtils');var _URLUtils2=_interopRequireDefault(_URLUtils);var _DashConstants=require('../../dash/constants/DashConstants');var _DashConstants2=_interopRequireDefault(_DashConstants);function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}var RESOLVE_TYPE_ONLOAD='onLoad';/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n */var RESOLVE_TYPE_ONACTUATE='onActuate';var RESOLVE_TO_ZERO='urn:mpeg:dash:resolve-to-zero:2013';function XlinkController(config){config=config||{};var context=this.context;var eventBus=(0,_EventBus2.default)(context).getInstance();var urlUtils=(0,_URLUtils2.default)(context).getInstance();var instance=void 0,matchers=void 0,iron=void 0,manifest=void 0,converter=void 0,xlinkLoader=void 0;function setup(){eventBus.on(_Events2.default.XLINK_ELEMENT_LOADED,onXlinkElementLoaded,instance);xlinkLoader=(0,_XlinkLoader2.default)(context).create({errHandler:config.errHandler,dashMetrics:config.dashMetrics,mediaPlayerModel:config.mediaPlayerModel,requestModifier:config.requestModifier,settings:config.settings});}function setMatchers(value){if(value){matchers=value;}}function setIron(value){if(value){iron=value;}}/**\n     * <p>Triggers the resolution of the xlink.onLoad attributes in the manifest file </p>\n     * @param {Object} mpd - the manifest\n     */function resolveManifestOnLoad(mpd){var elements=void 0;// First resolve all periods, so unnecessary requests inside onLoad Periods with Default content are avoided\nconverter=new _xml2json2.default({escapeMode:false,attributePrefix:'',arrayAccessForm:'property',emptyNodeForm:'object',stripWhitespaces:false,enableToStringFunc:false,ignoreRoot:true,matchers:matchers});manifest=mpd;elements=getElementsToResolve(manifest.Period_asArray,manifest,_DashConstants2.default.PERIOD,RESOLVE_TYPE_ONLOAD);resolve(elements,_DashConstants2.default.PERIOD,RESOLVE_TYPE_ONLOAD);}function reset(){eventBus.off(_Events2.default.XLINK_ELEMENT_LOADED,onXlinkElementLoaded,instance);if(xlinkLoader){xlinkLoader.reset();xlinkLoader=null;}}function resolve(elements,type,resolveType){var resolveObject={};var element=void 0,url=void 0;resolveObject.elements=elements;resolveObject.type=type;resolveObject.resolveType=resolveType;// If nothing to resolve, directly call allElementsLoaded\nif(resolveObject.elements.length===0){onXlinkAllElementsLoaded(resolveObject);}for(var i=0;i<resolveObject.elements.length;i++){element=resolveObject.elements[i];if(urlUtils.isHTTPURL(element.url)){url=element.url;}else{url=element.originalContent.BaseURL+element.url;}xlinkLoader.load(url,element,resolveObject);}}function onXlinkElementLoaded(event){var element=void 0,resolveObject=void 0;var openingTag='<response>';var closingTag='</response>';var mergedContent='';element=event.element;resolveObject=event.resolveObject;// if the element resolved into content parse the content\nif(element.resolvedContent){var index=0;// we add a parent elements so the converter is able to parse multiple elements of the same type which are not wrapped inside a container\nif(element.resolvedContent.indexOf('<?xml')===0){index=element.resolvedContent.indexOf('?>')+2;//find the closing position of the xml declaration, if it exists.\n}mergedContent=element.resolvedContent.substr(0,index)+openingTag+element.resolvedContent.substr(index)+closingTag;element.resolvedContent=converter.xml_str2json(mergedContent);}if(isResolvingFinished(resolveObject)){onXlinkAllElementsLoaded(resolveObject);}}// We got to wait till all elements of the current queue are resolved before merging back\nfunction onXlinkAllElementsLoaded(resolveObject){var elements=[];var i=void 0,obj=void 0;mergeElementsBack(resolveObject);if(resolveObject.resolveType===RESOLVE_TYPE_ONACTUATE){eventBus.trigger(_Events2.default.XLINK_READY,{manifest:manifest});}if(resolveObject.resolveType===RESOLVE_TYPE_ONLOAD){switch(resolveObject.type){// Start resolving the other elements. We can do Adaptation Set and EventStream in parallel\ncase _DashConstants2.default.PERIOD:for(i=0;i<manifest[_DashConstants2.default.PERIOD+'_asArray'].length;i++){obj=manifest[_DashConstants2.default.PERIOD+'_asArray'][i];if(obj.hasOwnProperty(_DashConstants2.default.ADAPTATION_SET+'_asArray')){elements=elements.concat(getElementsToResolve(obj[_DashConstants2.default.ADAPTATION_SET+'_asArray'],obj,_DashConstants2.default.ADAPTATION_SET,RESOLVE_TYPE_ONLOAD));}if(obj.hasOwnProperty(_DashConstants2.default.EVENT_STREAM+'_asArray')){elements=elements.concat(getElementsToResolve(obj[_DashConstants2.default.EVENT_STREAM+'_asArray'],obj,_DashConstants2.default.EVENT_STREAM,RESOLVE_TYPE_ONLOAD));}}resolve(elements,_DashConstants2.default.ADAPTATION_SET,RESOLVE_TYPE_ONLOAD);break;case _DashConstants2.default.ADAPTATION_SET:// TODO: Resolve SegmentList here\neventBus.trigger(_Events2.default.XLINK_READY,{manifest:manifest});break;}}}// Returns the elements with the specific resolve Type\nfunction getElementsToResolve(elements,parentElement,type,resolveType){var toResolve=[];var element=void 0,i=void 0,xlinkObject=void 0;// first remove all the resolve-to-zero elements\nfor(i=elements.length-1;i>=0;i--){element=elements[i];if(element.hasOwnProperty('xlink:href')&&element['xlink:href']===RESOLVE_TO_ZERO){elements.splice(i,1);}}// now get the elements with the right resolve type\nfor(i=0;i<elements.length;i++){element=elements[i];if(element.hasOwnProperty('xlink:href')&&element.hasOwnProperty('xlink:actuate')&&element['xlink:actuate']===resolveType){xlinkObject=createXlinkObject(element['xlink:href'],parentElement,type,i,resolveType,element);toResolve.push(xlinkObject);}}return toResolve;}function mergeElementsBack(resolveObject){var resolvedElements=[];var element=void 0,type=void 0,obj=void 0,i=void 0,j=void 0,k=void 0;// Start merging back from the end because of index shifting. Note that the elements with the same parent have to be ordered by index ascending\nfor(i=resolveObject.elements.length-1;i>=0;i--){element=resolveObject.elements[i];type=element.type+'_asArray';// Element couldn't be resolved or is TODO Inappropriate target: Remove all Xlink attributes\nif(!element.resolvedContent||isInappropriateTarget()){delete element.originalContent['xlink:actuate'];delete element.originalContent['xlink:href'];resolvedElements.push(element.originalContent);}// Element was successfully resolved\nelse if(element.resolvedContent){for(j=0;j<element.resolvedContent[type].length;j++){//TODO Contains another Xlink attribute with xlink:actuate set to onload. Remove all xLink attributes\nobj=element.resolvedContent[type][j];resolvedElements.push(obj);}}// Replace the old elements in the parent with the resolved ones\nelement.parentElement[type].splice(element.index,1);for(k=0;k<resolvedElements.length;k++){element.parentElement[type].splice(element.index+k,0,resolvedElements[k]);}resolvedElements=[];}if(resolveObject.elements.length>0){iron.run(manifest);}}function createXlinkObject(url,parentElement,type,index,resolveType,originalContent){return{url:url,parentElement:parentElement,type:type,index:index,resolveType:resolveType,originalContent:originalContent,resolvedContent:null,resolved:false};}// Check if all pending requests are finished\nfunction isResolvingFinished(elementsToResolve){var i=void 0,obj=void 0;for(i=0;i<elementsToResolve.elements.length;i++){obj=elementsToResolve.elements[i];if(obj.resolved===false){return false;}}return true;}// TODO : Do some syntax check here if the target is valid or not\nfunction isInappropriateTarget(){return false;}instance={resolveManifestOnLoad:resolveManifestOnLoad,setMatchers:setMatchers,setIron:setIron,reset:reset};setup();return instance;}XlinkController.__dashjs_factory_name='XlinkController';exports.default=_FactoryMaker2.default.getClassFactory(XlinkController);\n//# sourceMappingURL=XlinkController.js.map\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});function _classCallCheck(instance,Constructor){if(!(instance instanceof Constructor)){throw new TypeError(\"Cannot call a class as a function\");}}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n *//**\n * @classdesc This Object holds reference to the HTTPRequest for manifest, fragment and xlink loading.\n * Members which are not defined in ISO23009-1 Annex D should be prefixed by a _ so that they are ignored\n * by Metrics Reporting code.\n * @ignore\n */var HTTPRequest=/**\n     * @class\n     */function HTTPRequest(){_classCallCheck(this,HTTPRequest);/**\n         * Identifier of the TCP connection on which the HTTP request was sent.\n         * @public\n         */this.tcpid=null;/**\n         * This is an optional parameter and should not be included in HTTP request/response transactions for progressive download.\n         * The type of the request:\n         * - MPD\n         * - XLink expansion\n         * - Initialization Fragment\n         * - Index Fragment\n         * - Media Fragment\n         * - Bitstream Switching Fragment\n         * - other\n         * @public\n         */this.type=null;/**\n         * The original URL (before any redirects or failures)\n         * @public\n         */this.url=null;/**\n         * The actual URL requested, if different from above\n         * @public\n         */this.actualurl=null;/**\n         * The contents of the byte-range-spec part of the HTTP Range header.\n         * @public\n         */this.range=null;/**\n         * Real-Time | The real time at which the request was sent.\n         * @public\n         */this.trequest=null;/**\n         * Real-Time | The real time at which the first byte of the response was received.\n         * @public\n         */this.tresponse=null;/**\n         * The HTTP response code.\n         * @public\n         */this.responsecode=null;/**\n         * The duration of the throughput trace intervals (ms), for successful requests only.\n         * @public\n         */this.interval=null;/**\n         * Throughput traces, for successful requests only.\n         * @public\n         */this.trace=[];/**\n         * Type of stream (\"audio\" | \"video\" etc..)\n         * @public\n         */this._stream=null;/**\n         * Real-Time | The real time at which the request finished.\n         * @public\n         */this._tfinish=null;/**\n         * The duration of the media requests, if available, in milliseconds.\n         * @public\n         */this._mediaduration=null;/**\n         * The media segment quality\n         * @public\n         */this._quality=null;/**\n         * all the response headers from request.\n         * @public\n         */this._responseHeaders=null;/**\n         * The selected service location for the request. string.\n         * @public\n         */this._serviceLocation=null;};/**\n * @classdesc This Object holds reference to the progress of the HTTPRequest.\n * @ignore\n */var HTTPRequestTrace=/**\n    * @class\n    */function HTTPRequestTrace(){_classCallCheck(this,HTTPRequestTrace);/**\n         * Real-Time | Measurement stream start.\n         * @public\n         */this.s=null;/**\n         * Measurement stream duration (ms).\n         * @public\n         */this.d=null;/**\n         * List of integers counting the bytes received in each trace interval within the measurement stream.\n         * @public\n         */this.b=[];};HTTPRequest.GET='GET';HTTPRequest.HEAD='HEAD';HTTPRequest.MPD_TYPE='MPD';HTTPRequest.XLINK_EXPANSION_TYPE='XLinkExpansion';HTTPRequest.INIT_SEGMENT_TYPE='InitializationSegment';HTTPRequest.INDEX_SEGMENT_TYPE='IndexSegment';HTTPRequest.MEDIA_SEGMENT_TYPE='MediaSegment';HTTPRequest.BITSTREAM_SWITCHING_SEGMENT_TYPE='BitstreamSwitchingSegment';HTTPRequest.OTHER_TYPE='other';exports.HTTPRequest=HTTPRequest;exports.HTTPRequestTrace=HTTPRequestTrace;\n//# sourceMappingURL=HTTPRequest.js.map\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _ThroughputRule=require('./ThroughputRule');var _ThroughputRule2=_interopRequireDefault(_ThroughputRule);var _InsufficientBufferRule=require('./InsufficientBufferRule');var _InsufficientBufferRule2=_interopRequireDefault(_InsufficientBufferRule);var _AbandonRequestsRule=require('./AbandonRequestsRule');var _AbandonRequestsRule2=_interopRequireDefault(_AbandonRequestsRule);var _DroppedFramesRule=require('./DroppedFramesRule');var _DroppedFramesRule2=_interopRequireDefault(_DroppedFramesRule);var _SwitchHistoryRule=require('./SwitchHistoryRule');var _SwitchHistoryRule2=_interopRequireDefault(_SwitchHistoryRule);var _BolaRule=require('./BolaRule');var _BolaRule2=_interopRequireDefault(_BolaRule);var _FactoryMaker=require('../../../core/FactoryMaker');var _FactoryMaker2=_interopRequireDefault(_FactoryMaker);var _SwitchRequest=require('../SwitchRequest');var _SwitchRequest2=_interopRequireDefault(_SwitchRequest);function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n */var QUALITY_SWITCH_RULES='qualitySwitchRules';var ABANDON_FRAGMENT_RULES='abandonFragmentRules';function ABRRulesCollection(config){config=config||{};var context=this.context;var mediaPlayerModel=config.mediaPlayerModel;var dashMetrics=config.dashMetrics;var settings=config.settings;var instance=void 0,qualitySwitchRules=void 0,abandonFragmentRules=void 0;function initialize(){qualitySwitchRules=[];abandonFragmentRules=[];if(settings.get().streaming.abr.useDefaultABRRules){// Only one of BolaRule and ThroughputRule will give a switchRequest.quality !== SwitchRequest.NO_CHANGE.\n// This is controlled by useBufferOccupancyABR mechanism in AbrController.\nqualitySwitchRules.push((0,_BolaRule2.default)(context).create({dashMetrics:dashMetrics,mediaPlayerModel:mediaPlayerModel,settings:settings}));qualitySwitchRules.push((0,_ThroughputRule2.default)(context).create({dashMetrics:dashMetrics}));qualitySwitchRules.push((0,_InsufficientBufferRule2.default)(context).create({dashMetrics:dashMetrics}));qualitySwitchRules.push((0,_SwitchHistoryRule2.default)(context).create());qualitySwitchRules.push((0,_DroppedFramesRule2.default)(context).create());abandonFragmentRules.push((0,_AbandonRequestsRule2.default)(context).create({dashMetrics:dashMetrics,mediaPlayerModel:mediaPlayerModel,settings:settings}));}// add custom ABR rules if any\nvar customRules=mediaPlayerModel.getABRCustomRules();customRules.forEach(function(rule){if(rule.type===QUALITY_SWITCH_RULES){qualitySwitchRules.push(rule.rule(context).create());}if(rule.type===ABANDON_FRAGMENT_RULES){abandonFragmentRules.push(rule.rule(context).create());}});}function getActiveRules(srArray){return srArray.filter(function(sr){return sr.quality>_SwitchRequest2.default.NO_CHANGE;});}function getMinSwitchRequest(srArray){var values={};var i=void 0,len=void 0,req=void 0,newQuality=void 0,quality=void 0;if(srArray.length===0){return;}values[_SwitchRequest2.default.PRIORITY.STRONG]=_SwitchRequest2.default.NO_CHANGE;values[_SwitchRequest2.default.PRIORITY.WEAK]=_SwitchRequest2.default.NO_CHANGE;values[_SwitchRequest2.default.PRIORITY.DEFAULT]=_SwitchRequest2.default.NO_CHANGE;for(i=0,len=srArray.length;i<len;i+=1){req=srArray[i];if(req.quality!==_SwitchRequest2.default.NO_CHANGE){values[req.priority]=values[req.priority]>_SwitchRequest2.default.NO_CHANGE?Math.min(values[req.priority],req.quality):req.quality;}}if(values[_SwitchRequest2.default.PRIORITY.WEAK]!==_SwitchRequest2.default.NO_CHANGE){newQuality=values[_SwitchRequest2.default.PRIORITY.WEAK];}if(values[_SwitchRequest2.default.PRIORITY.DEFAULT]!==_SwitchRequest2.default.NO_CHANGE){newQuality=values[_SwitchRequest2.default.PRIORITY.DEFAULT];}if(values[_SwitchRequest2.default.PRIORITY.STRONG]!==_SwitchRequest2.default.NO_CHANGE){newQuality=values[_SwitchRequest2.default.PRIORITY.STRONG];}if(newQuality!==_SwitchRequest2.default.NO_CHANGE){quality=newQuality;}return(0,_SwitchRequest2.default)(context).create(quality);}function getMaxQuality(rulesContext){var switchRequestArray=qualitySwitchRules.map(function(rule){return rule.getMaxIndex(rulesContext);});var activeRules=getActiveRules(switchRequestArray);var maxQuality=getMinSwitchRequest(activeRules);return maxQuality||(0,_SwitchRequest2.default)(context).create();}function shouldAbandonFragment(rulesContext){var abandonRequestArray=abandonFragmentRules.map(function(rule){return rule.shouldAbandon(rulesContext);});var activeRules=getActiveRules(abandonRequestArray);var shouldAbandon=getMinSwitchRequest(activeRules);return shouldAbandon||(0,_SwitchRequest2.default)(context).create();}function reset(){[qualitySwitchRules,abandonFragmentRules].forEach(function(rules){if(rules&&rules.length){rules.forEach(function(rule){return rule.reset&&rule.reset();});}});qualitySwitchRules=[];abandonFragmentRules=[];}instance={initialize:initialize,reset:reset,getMaxQuality:getMaxQuality,shouldAbandonFragment:shouldAbandonFragment};return instance;}ABRRulesCollection.__dashjs_factory_name='ABRRulesCollection';var factory=_FactoryMaker2.default.getClassFactory(ABRRulesCollection);factory.QUALITY_SWITCH_RULES=QUALITY_SWITCH_RULES;factory.ABANDON_FRAGMENT_RULES=ABANDON_FRAGMENT_RULES;_FactoryMaker2.default.updateSingletonFactory(ABRRulesCollection.__dashjs_factory_name,factory);exports.default=factory;\n//# sourceMappingURL=ABRRulesCollection.js.map\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});exports.Debug=exports.MediaPlayerFactory=exports.MetricsReporting=exports.Protection=exports.MediaPlayer=undefined;var _index_mediaplayerOnly=require('./index_mediaplayerOnly');var _MetricsReporting=require('./src/streaming/metrics/MetricsReporting');var _MetricsReporting2=_interopRequireDefault(_MetricsReporting);var _Protection=require('./src/streaming/protection/Protection');var _Protection2=_interopRequireDefault(_Protection);var _MediaPlayerFactory=require('./src/streaming/MediaPlayerFactory');var _MediaPlayerFactory2=_interopRequireDefault(_MediaPlayerFactory);var _Debug=require('./src/core/Debug');var _Debug2=_interopRequireDefault(_Debug);function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}dashjs.Protection=_Protection2.default;/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n */dashjs.MetricsReporting=_MetricsReporting2.default;dashjs.MediaPlayerFactory=_MediaPlayerFactory2.default;dashjs.Debug=_Debug2.default;exports.default=dashjs;exports.MediaPlayer=_index_mediaplayerOnly.MediaPlayer;exports.Protection=_Protection2.default;exports.MetricsReporting=_MetricsReporting2.default;exports.MediaPlayerFactory=_MediaPlayerFactory2.default;exports.Debug=_Debug2.default;\n//# sourceMappingURL=index.js.map\n","module.exports = require('./lib/_stream_duplex.js');\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _createClass=function(){function defineProperties(target,props){for(var i=0;i<props.length;i++){var descriptor=props[i];descriptor.enumerable=descriptor.enumerable||false;descriptor.configurable=true;if(\"value\"in descriptor)descriptor.writable=true;Object.defineProperty(target,descriptor.key,descriptor);}}return function(Constructor,protoProps,staticProps){if(protoProps)defineProperties(Constructor.prototype,protoProps);if(staticProps)defineProperties(Constructor,staticProps);return Constructor;};}();function _classCallCheck(instance,Constructor){if(!(instance instanceof Constructor)){throw new TypeError(\"Cannot call a class as a function\");}}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n *//**\n * @class\n * @ignore\n */var EventsBase=function(){function EventsBase(){_classCallCheck(this,EventsBase);}_createClass(EventsBase,[{key:'extend',value:function extend(events,config){if(!events)return;var override=config?config.override:false;var publicOnly=config?config.publicOnly:false;for(var evt in events){if(!events.hasOwnProperty(evt)||this[evt]&&!override)continue;if(publicOnly&&events[evt].indexOf('public_')===-1)continue;this[evt]=events[evt];}}}]);return EventsBase;}();exports.default=EventsBase;\n//# sourceMappingURL=EventsBase.js.map\n","'use strict';\n\nvar utils = require('./../utils');\nvar buildURL = require('../helpers/buildURL');\nvar InterceptorManager = require('./InterceptorManager');\nvar dispatchRequest = require('./dispatchRequest');\nvar mergeConfig = require('./mergeConfig');\n\n/**\n * Create a new instance of Axios\n *\n * @param {Object} instanceConfig The default config for the instance\n */\nfunction Axios(instanceConfig) {\n  this.defaults = instanceConfig;\n  this.interceptors = {\n    request: new InterceptorManager(),\n    response: new InterceptorManager()\n  };\n}\n\n/**\n * Dispatch a request\n *\n * @param {Object} config The config specific for this request (merged with this.defaults)\n */\nAxios.prototype.request = function request(config) {\n  /*eslint no-param-reassign:0*/\n  // Allow for axios('example/url'[, config]) a la fetch API\n  if (typeof config === 'string') {\n    config = arguments[1] || {};\n    config.url = arguments[0];\n  } else {\n    config = config || {};\n  }\n\n  config = mergeConfig(this.defaults, config);\n\n  // Set config.method\n  if (config.method) {\n    config.method = config.method.toLowerCase();\n  } else if (this.defaults.method) {\n    config.method = this.defaults.method.toLowerCase();\n  } else {\n    config.method = 'get';\n  }\n\n  // Hook up interceptors middleware\n  var chain = [dispatchRequest, undefined];\n  var promise = Promise.resolve(config);\n\n  this.interceptors.request.forEach(function unshiftRequestInterceptors(interceptor) {\n    chain.unshift(interceptor.fulfilled, interceptor.rejected);\n  });\n\n  this.interceptors.response.forEach(function pushResponseInterceptors(interceptor) {\n    chain.push(interceptor.fulfilled, interceptor.rejected);\n  });\n\n  while (chain.length) {\n    promise = promise.then(chain.shift(), chain.shift());\n  }\n\n  return promise;\n};\n\nAxios.prototype.getUri = function getUri(config) {\n  config = mergeConfig(this.defaults, config);\n  return buildURL(config.url, config.params, config.paramsSerializer).replace(/^\\?/, '');\n};\n\n// Provide aliases for supported request methods\nutils.forEach(['delete', 'get', 'head', 'options'], function forEachMethodNoData(method) {\n  /*eslint func-names:0*/\n  Axios.prototype[method] = function(url, config) {\n    return this.request(mergeConfig(config || {}, {\n      method: method,\n      url: url,\n      data: (config || {}).data\n    }));\n  };\n});\n\nutils.forEach(['post', 'put', 'patch'], function forEachMethodWithData(method) {\n  /*eslint func-names:0*/\n  Axios.prototype[method] = function(url, data, config) {\n    return this.request(mergeConfig(config || {}, {\n      method: method,\n      url: url,\n      data: data\n    }));\n  };\n});\n\nmodule.exports = Axios;\n","var setPrototypeOf = require(\"./setPrototypeOf.js\");\n\nfunction _inheritsLoose(subClass, superClass) {\n  subClass.prototype = Object.create(superClass.prototype);\n  subClass.prototype.constructor = subClass;\n  setPrototypeOf(subClass, superClass);\n}\n\nmodule.exports = _inheritsLoose;\nmodule.exports[\"default\"] = module.exports, module.exports.__esModule = true;","\"use strict\";Object.defineProperty(exports,\"__esModule\",{value:true});function _classCallCheck(instance,Constructor){if(!(instance instanceof Constructor)){throw new TypeError(\"Cannot call a class as a function\");}}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n *//**\n * @class\n * @ignore\n */var URIFragmentData=function URIFragmentData(){_classCallCheck(this,URIFragmentData);this.t=null;this.xywh=null;this.track=null;this.id=null;this.s=null;this.r=null;};exports.default=URIFragmentData;/*\n    From Spec http://www.w3.org/TR/media-frags/\n\n    temporal (t)     - This dimension denotes a specific time range in the original media, such as \"starting at second 10, continuing until second 20\";\n    spatial  (xywh)  - this dimension denotes a specific range of pixels in the original media, such as \"a rectangle with size (100,100) with its top-left at coordinate (10,10)\";\n                       Media fragments support also addressing the media along two additional dimensions (in the advanced version defined in Media Fragments 1.0 URI (advanced)):\n    track    (track) - this dimension denotes one or more tracks in the original media, such as \"the english audio and the video track\";\n    id       (id)    - this dimension denotes a named temporal fragment within the original media, such as \"chapter 2\", and can be seen as a convenient way of specifying a temporal fragment.\n\n\n    ## Note\n    Akamai is purposing to add #s=X to the ISO standard.\n        - (X) Value would be a start time to seek to at startup instead of starting at 0 or live edge\n        - Allows for seeking back before the start time unlike a temporal clipping.\n*/\n//# sourceMappingURL=URIFragmentData.js.map\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _MapNode2=require('./MapNode');var _MapNode3=_interopRequireDefault(_MapNode2);var _DashConstants=require('../../constants/DashConstants');var _DashConstants2=_interopRequireDefault(_DashConstants);function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}function _classCallCheck(instance,Constructor){if(!(instance instanceof Constructor)){throw new TypeError(\"Cannot call a class as a function\");}}function _possibleConstructorReturn(self,call){if(!self){throw new ReferenceError(\"this hasn't been initialised - super() hasn't been called\");}return call&&(typeof call===\"object\"||typeof call===\"function\")?call:self;}function _inherits(subClass,superClass){if(typeof superClass!==\"function\"&&superClass!==null){throw new TypeError(\"Super expression must either be null or a function, not \"+typeof superClass);}subClass.prototype=Object.create(superClass&&superClass.prototype,{constructor:{value:subClass,enumerable:false,writable:true,configurable:true}});if(superClass)Object.setPrototypeOf?Object.setPrototypeOf(subClass,superClass):subClass.__proto__=superClass;}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n *//**\n * @classdesc a SegmentValuesMap type for input to objectiron\n */var SegmentValuesMap=function(_MapNode){_inherits(SegmentValuesMap,_MapNode);function SegmentValuesMap(){_classCallCheck(this,SegmentValuesMap);var commonProperties=[_DashConstants2.default.SEGMENT_BASE,_DashConstants2.default.SEGMENT_TEMPLATE,_DashConstants2.default.SEGMENT_LIST];return _possibleConstructorReturn(this,(SegmentValuesMap.__proto__||Object.getPrototypeOf(SegmentValuesMap)).call(this,_DashConstants2.default.PERIOD,commonProperties,[new _MapNode3.default(_DashConstants2.default.ADAPTATION_SET,commonProperties,[new _MapNode3.default(_DashConstants2.default.REPRESENTATION,commonProperties)])]));}return SegmentValuesMap;}(_MapNode3.default);exports.default=SegmentValuesMap;\n//# sourceMappingURL=SegmentValuesMap.js.map\n","var DESCRIPTORS = require('../internals/descriptors');\nvar fails = require('../internals/fails');\nvar createElement = require('../internals/document-create-element');\n\n// Thank's IE8 for his funny defineProperty\nmodule.exports = !DESCRIPTORS && !fails(function () {\n  return Object.defineProperty(createElement('div'), 'a', {\n    get: function () { return 7; }\n  }).a != 7;\n});\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _BufferLevelHandler=require('./handlers/BufferLevelHandler');var _BufferLevelHandler2=_interopRequireDefault(_BufferLevelHandler);var _DVBErrorsHandler=require('./handlers/DVBErrorsHandler');var _DVBErrorsHandler2=_interopRequireDefault(_DVBErrorsHandler);var _HttpListHandler=require('./handlers/HttpListHandler');var _HttpListHandler2=_interopRequireDefault(_HttpListHandler);var _GenericMetricHandler=require('./handlers/GenericMetricHandler');var _GenericMetricHandler2=_interopRequireDefault(_GenericMetricHandler);function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n */function MetricsHandlerFactory(config){config=config||{};var instance=void 0;var logger=config.debug?config.debug.getLogger(instance):{};// group 1: key, [group 3: n [, group 5: type]]\nvar keyRegex=/([a-zA-Z]*)(\\(([0-9]*)(\\,\\s*([a-zA-Z]*))?\\))?/;var context=this.context;var knownFactoryProducts={BufferLevel:_BufferLevelHandler2.default,DVBErrors:_DVBErrorsHandler2.default,HttpList:_HttpListHandler2.default,PlayList:_GenericMetricHandler2.default,RepSwitchList:_GenericMetricHandler2.default,TcpList:_GenericMetricHandler2.default};function create(listType,reportingController){var matches=listType.match(keyRegex);var handler;if(!matches){return;}try{handler=knownFactoryProducts[matches[1]](context).create({eventBus:config.eventBus,metricsConstants:config.metricsConstants});handler.initialize(matches[1],reportingController,matches[3],matches[5]);}catch(e){handler=null;logger.error('MetricsHandlerFactory: Could not create handler for type '+matches[1]+' with args '+matches[3]+', '+matches[5]+' ('+e.message+')');}return handler;}function register(key,handler){knownFactoryProducts[key]=handler;}function unregister(key){delete knownFactoryProducts[key];}instance={create:create,register:register,unregister:unregister};return instance;}MetricsHandlerFactory.__dashjs_factory_name='MetricsHandlerFactory';exports.default=dashjs.FactoryMaker.getSingletonFactory(MetricsHandlerFactory);/* jshint ignore:line */\n//# sourceMappingURL=MetricsHandlerFactory.js.map\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _CommonEncryption=require('../CommonEncryption');var _CommonEncryption2=_interopRequireDefault(_CommonEncryption);var _ProtectionConstants=require('../../constants/ProtectionConstants');var _ProtectionConstants2=_interopRequireDefault(_ProtectionConstants);function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n *//**\n * Microsoft PlayReady DRM\n *\n * @class\n * @implements KeySystem\n */var uuid='9a04f079-9840-4286-ab92-e65be0885f95';var systemString=_ProtectionConstants2.default.PLAYREADY_KEYSTEM_STRING;var schemeIdURI='urn:uuid:'+uuid;var PRCDMData='<PlayReadyCDMData type=\"LicenseAcquisition\"><LicenseAcquisition version=\"1.0\" Proactive=\"false\"><CustomData encoding=\"base64encoded\">%CUSTOMDATA%</CustomData></LicenseAcquisition></PlayReadyCDMData>';var protData=void 0;function KeySystemPlayReady(config){config=config||{};var instance=void 0;var messageFormat='utf-16';var BASE64=config.BASE64;function checkConfig(){if(!BASE64||!BASE64.hasOwnProperty('decodeArray')||!BASE64.hasOwnProperty('decodeArray')){throw new Error('Missing config parameter(s)');}}function getRequestHeadersFromMessage(message){var msg=void 0,xmlDoc=void 0;var headers={};var parser=new DOMParser();var dataview=messageFormat==='utf-16'?new Uint16Array(message):new Uint8Array(message);msg=String.fromCharCode.apply(null,dataview);xmlDoc=parser.parseFromString(msg,'application/xml');var headerNameList=xmlDoc.getElementsByTagName('name');var headerValueList=xmlDoc.getElementsByTagName('value');for(var i=0;i<headerNameList.length;i++){headers[headerNameList[i].childNodes[0].nodeValue]=headerValueList[i].childNodes[0].nodeValue;}// Some versions of the PlayReady CDM return 'Content' instead of 'Content-Type'.\n// this is NOT w3c conform and license servers may reject the request!\n// -> rename it to proper w3c definition!\nif(headers.hasOwnProperty('Content')){headers['Content-Type']=headers.Content;delete headers.Content;}// Set Content-Type header by default if not provided in the the CDM message (<PlayReadyKeyMessage/>)\n// or if the message contains directly the challenge itself (Ex: LG SmartTVs)\nif(!headers.hasOwnProperty('Content-Type')){headers['Content-Type']='text/xml; charset=utf-8';}return headers;}function getLicenseRequestFromMessage(message){var licenseRequest=null;var parser=new DOMParser();var dataview=messageFormat==='utf-16'?new Uint16Array(message):new Uint8Array(message);checkConfig();var msg=String.fromCharCode.apply(null,dataview);var xmlDoc=parser.parseFromString(msg,'application/xml');if(xmlDoc.getElementsByTagName('PlayReadyKeyMessage')[0]){var Challenge=xmlDoc.getElementsByTagName('Challenge')[0].childNodes[0].nodeValue;if(Challenge){licenseRequest=BASE64.decode(Challenge);}}else{// The message from CDM is not a wrapped message as on IE11 and Edge,\n// thus it contains direclty the challenge itself\n// (note that the xmlDoc at this point may be unreadable since it may have been interpreted as UTF-16)\nreturn message;}return licenseRequest;}function getLicenseServerURLFromInitData(initData){if(initData){var data=new DataView(initData);var numRecords=data.getUint16(4,true);var offset=6;var parser=new DOMParser();for(var i=0;i<numRecords;i++){// Parse the PlayReady Record header\nvar recordType=data.getUint16(offset,true);offset+=2;var recordLength=data.getUint16(offset,true);offset+=2;if(recordType!==0x0001){offset+=recordLength;continue;}var recordData=initData.slice(offset,offset+recordLength);var record=String.fromCharCode.apply(null,new Uint16Array(recordData));var xmlDoc=parser.parseFromString(record,'application/xml');// First try <LA_URL>\nif(xmlDoc.getElementsByTagName('LA_URL')[0]){var laurl=xmlDoc.getElementsByTagName('LA_URL')[0].childNodes[0].nodeValue;if(laurl){return laurl;}}// Optionally, try <LUI_URL>\nif(xmlDoc.getElementsByTagName('LUI_URL')[0]){var luiurl=xmlDoc.getElementsByTagName('LUI_URL')[0].childNodes[0].nodeValue;if(luiurl){return luiurl;}}}}return null;}function getInitData(cpData){// * desc@ getInitData\n// *   generate PSSH data from PROHeader defined in MPD file\n// *   PSSH format:\n// *   size (4)\n// *   box type(PSSH) (8)\n// *   Protection SystemID (16)\n// *   protection system data size (4) - length of decoded PROHeader\n// *   decoded PROHeader data from MPD file\nvar PSSHBoxType=new Uint8Array([0x70,0x73,0x73,0x68,0x00,0x00,0x00,0x00]);//'PSSH' 8 bytes\nvar playreadySystemID=new Uint8Array([0x9a,0x04,0xf0,0x79,0x98,0x40,0x42,0x86,0xab,0x92,0xe6,0x5b,0xe0,0x88,0x5f,0x95]);var byteCursor=0;var uint8arraydecodedPROHeader=null;var PROSize=void 0,PSSHSize=void 0,PSSHBoxBuffer=void 0,PSSHBox=void 0,PSSHData=void 0;checkConfig();if(!cpData){return null;}// Handle common encryption PSSH\nif('pssh'in cpData){return _CommonEncryption2.default.parseInitDataFromContentProtection(cpData,BASE64);}// Handle native MS PlayReady ContentProtection elements\nif('pro'in cpData){uint8arraydecodedPROHeader=BASE64.decodeArray(cpData.pro.__text);}else if('prheader'in cpData){uint8arraydecodedPROHeader=BASE64.decodeArray(cpData.prheader.__text);}else{return null;}PROSize=uint8arraydecodedPROHeader.length;PSSHSize=0x4+PSSHBoxType.length+playreadySystemID.length+0x4+PROSize;PSSHBoxBuffer=new ArrayBuffer(PSSHSize);PSSHBox=new Uint8Array(PSSHBoxBuffer);PSSHData=new DataView(PSSHBoxBuffer);PSSHData.setUint32(byteCursor,PSSHSize);byteCursor+=0x4;PSSHBox.set(PSSHBoxType,byteCursor);byteCursor+=PSSHBoxType.length;PSSHBox.set(playreadySystemID,byteCursor);byteCursor+=playreadySystemID.length;PSSHData.setUint32(byteCursor,PROSize);byteCursor+=0x4;PSSHBox.set(uint8arraydecodedPROHeader,byteCursor);byteCursor+=PROSize;return PSSHBox.buffer;}/**\n     * It seems that some PlayReady implementations return their XML-based CDM\n     * messages using UTF16, while others return them as UTF8.  Use this function\n     * to modify the message format to expect when parsing CDM messages.\n     *\n     * @param {string} format the expected message format.  Either \"utf-8\" or \"utf-16\".\n     * @throws {Error} Specified message format is not one of \"utf8\" or \"utf16\"\n     */function setPlayReadyMessageFormat(format){if(format!=='utf-8'&&format!=='utf-16'){throw new Error('Specified message format is not one of \"utf-8\" or \"utf-16\"');}messageFormat=format;}/**\n     * Initialize the Key system with protection data\n     * @param {Object} protectionData the protection data\n     */function init(protectionData){if(protectionData){protData=protectionData;}}/**\n     * Get Playready Custom data\n     */function getCDMData(){var customData=void 0,cdmData=void 0,cdmDataBytes=void 0,i=void 0;checkConfig();if(protData&&protData.cdmData){// Convert custom data into multibyte string\ncustomData=[];for(i=0;i<protData.cdmData.length;++i){customData.push(protData.cdmData.charCodeAt(i));customData.push(0);}customData=String.fromCharCode.apply(null,customData);// Encode in Base 64 the custom data string\ncustomData=BASE64.encode(customData);// Initialize CDM data with Base 64 encoded custom data\n// (see https://msdn.microsoft.com/en-us/library/dn457361.aspx)\ncdmData=PRCDMData.replace('%CUSTOMDATA%',customData);// Convert CDM data into multibyte characters\ncdmDataBytes=[];for(i=0;i<cdmData.length;++i){cdmDataBytes.push(cdmData.charCodeAt(i));cdmDataBytes.push(0);}return new Uint8Array(cdmDataBytes).buffer;}return null;}function getSessionId(cp){// Get sessionId from protectionData or from manifest\nif(protData&&protData.sessionId){return protData.sessionId;}else if(cp&&cp.sessionId){return cp.sessionId;}return null;}instance={uuid:uuid,schemeIdURI:schemeIdURI,systemString:systemString,getInitData:getInitData,getRequestHeadersFromMessage:getRequestHeadersFromMessage,getLicenseRequestFromMessage:getLicenseRequestFromMessage,getLicenseServerURLFromInitData:getLicenseServerURLFromInitData,getCDMData:getCDMData,getSessionId:getSessionId,setPlayReadyMessageFormat:setPlayReadyMessageFormat,init:init};return instance;}KeySystemPlayReady.__dashjs_factory_name='KeySystemPlayReady';exports.default=dashjs.FactoryMaker.getSingletonFactory(KeySystemPlayReady);/* jshint ignore:line */\n//# sourceMappingURL=KeySystemPlayReady.js.map\n","'use strict';\n\n/**\n * Syntactic sugar for invoking a function and expanding an array for arguments.\n *\n * Common use case would be to use `Function.prototype.apply`.\n *\n *  ```js\n *  function f(x, y, z) {}\n *  var args = [1, 2, 3];\n *  f.apply(null, args);\n *  ```\n *\n * With `spread` this example can be re-written.\n *\n *  ```js\n *  spread(function(x, y, z) {})([1, 2, 3]);\n *  ```\n *\n * @param {Function} callback\n * @returns {Function}\n */\nmodule.exports = function spread(callback) {\n  return function wrap(arr) {\n    return callback.apply(null, arr);\n  };\n};\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _FactoryMaker=require('../../core/FactoryMaker');var _FactoryMaker2=_interopRequireDefault(_FactoryMaker);function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}function InitCache(){var data={};function save(chunk){var id=chunk.streamId;var representationId=chunk.representationId;data[id]=data[id]||{};data[id][representationId]=chunk;}function extract(streamId,representationId){if(data&&data[streamId]&&data[streamId][representationId]){return data[streamId][representationId];}else{return null;}}function reset(){data={};}var instance={save:save,extract:extract,reset:reset};return instance;}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n *//**\n * Represents data structure to keep and drive {DataChunk}\n */InitCache.__dashjs_factory_name='InitCache';exports.default=_FactoryMaker2.default.getSingletonFactory(InitCache);\n//# sourceMappingURL=InitCache.js.map\n","\"use strict\";Object.defineProperty(exports,\"__esModule\",{value:true});function _classCallCheck(instance,Constructor){if(!(instance instanceof Constructor)){throw new TypeError(\"Cannot call a class as a function\");}}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n *//**\n * @classdesc A media capability\n * @ignore\n */var MediaCapability=/**\n     * @param {string} contentType MIME type and codecs (RFC6386)\n     * @param {string} robustness\n     * @class\n     * @ignore\n     */function MediaCapability(contentType,robustness){_classCallCheck(this,MediaCapability);this.contentType=contentType;this.robustness=robustness;};exports.default=MediaCapability;\n//# sourceMappingURL=MediaCapability.js.map\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _Constants=require('../constants/Constants');var _Constants2=_interopRequireDefault(_Constants);var _FactoryMaker=require('../../core/FactoryMaker');var _FactoryMaker2=_interopRequireDefault(_FactoryMaker);function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}// throughput generally stored in kbit/s\n// latency generally stored in ms\n/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2017, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n */function ThroughputHistory(config){config=config||{};// sliding window constants\nvar MAX_MEASUREMENTS_TO_KEEP=20;var AVERAGE_THROUGHPUT_SAMPLE_AMOUNT_LIVE=3;var AVERAGE_THROUGHPUT_SAMPLE_AMOUNT_VOD=4;var AVERAGE_LATENCY_SAMPLE_AMOUNT=4;var THROUGHPUT_DECREASE_SCALE=1.3;var THROUGHPUT_INCREASE_SCALE=1.3;// EWMA constants\nvar EWMA_THROUGHPUT_SLOW_HALF_LIFE_SECONDS=8;var EWMA_THROUGHPUT_FAST_HALF_LIFE_SECONDS=3;var EWMA_LATENCY_SLOW_HALF_LIFE_COUNT=2;var EWMA_LATENCY_FAST_HALF_LIFE_COUNT=1;var settings=config.settings;var throughputDict=void 0,latencyDict=void 0,ewmaThroughputDict=void 0,ewmaLatencyDict=void 0,ewmaHalfLife=void 0;function setup(){ewmaHalfLife={throughputHalfLife:{fast:EWMA_THROUGHPUT_FAST_HALF_LIFE_SECONDS,slow:EWMA_THROUGHPUT_SLOW_HALF_LIFE_SECONDS},latencyHalfLife:{fast:EWMA_LATENCY_FAST_HALF_LIFE_COUNT,slow:EWMA_LATENCY_SLOW_HALF_LIFE_COUNT}};reset();}function isCachedResponse(mediaType,latencyMs,downloadTimeMs){if(mediaType===_Constants2.default.VIDEO){return downloadTimeMs<settings.get().streaming.cacheLoadThresholds[_Constants2.default.VIDEO];}else if(mediaType===_Constants2.default.AUDIO){return downloadTimeMs<settings.get().streaming.cacheLoadThresholds[_Constants2.default.AUDIO];}}function push(mediaType,httpRequest,useDeadTimeLatency){if(!httpRequest.trace||!httpRequest.trace.length){return;}var latencyTimeInMilliseconds=httpRequest.tresponse.getTime()-httpRequest.trequest.getTime()||1;var downloadTimeInMilliseconds=httpRequest._tfinish.getTime()-httpRequest.tresponse.getTime()||1;//Make sure never 0 we divide by this value. Avoid infinity!\nvar downloadBytes=httpRequest.trace.reduce(function(a,b){return a+b.b[0];},0);var throughputMeasureTime=void 0;if(settings.get().streaming.lowLatencyEnabled){throughputMeasureTime=httpRequest.trace.reduce(function(a,b){return a+b.d;},0);}else{throughputMeasureTime=useDeadTimeLatency?downloadTimeInMilliseconds:latencyTimeInMilliseconds+downloadTimeInMilliseconds;}var throughput=Math.round(8*downloadBytes/throughputMeasureTime);// bits/ms = kbits/s\ncheckSettingsForMediaType(mediaType);if(isCachedResponse(mediaType,latencyTimeInMilliseconds,downloadTimeInMilliseconds)){if(throughputDict[mediaType].length>0&&!throughputDict[mediaType].hasCachedEntries){// already have some entries which are not cached entries\n// prevent cached fragment loads from skewing the average values\nreturn;}else{// have no entries || have cached entries\n// no uncached entries yet, rely on cached entries because ABR rules need something to go by\nthroughputDict[mediaType].hasCachedEntries=true;}}else if(throughputDict[mediaType]&&throughputDict[mediaType].hasCachedEntries){// if we are here then we have some entries already, but they are cached, and now we have a new uncached entry\nclearSettingsForMediaType(mediaType);}throughputDict[mediaType].push(throughput);if(throughputDict[mediaType].length>MAX_MEASUREMENTS_TO_KEEP){throughputDict[mediaType].shift();}latencyDict[mediaType].push(latencyTimeInMilliseconds);if(latencyDict[mediaType].length>MAX_MEASUREMENTS_TO_KEEP){latencyDict[mediaType].shift();}updateEwmaEstimate(ewmaThroughputDict[mediaType],throughput,0.001*downloadTimeInMilliseconds,ewmaHalfLife.throughputHalfLife);updateEwmaEstimate(ewmaLatencyDict[mediaType],latencyTimeInMilliseconds,1,ewmaHalfLife.latencyHalfLife);}function updateEwmaEstimate(ewmaObj,value,weight,halfLife){// Note about startup:\n// Estimates start at 0, so early values are underestimated.\n// This effect is countered in getAverageEwma() by dividing the estimates by:\n//     1 - Math.pow(0.5, ewmaObj.totalWeight / halfLife)\nvar fastAlpha=Math.pow(0.5,weight/halfLife.fast);ewmaObj.fastEstimate=(1-fastAlpha)*value+fastAlpha*ewmaObj.fastEstimate;var slowAlpha=Math.pow(0.5,weight/halfLife.slow);ewmaObj.slowEstimate=(1-slowAlpha)*value+slowAlpha*ewmaObj.slowEstimate;ewmaObj.totalWeight+=weight;}function getSampleSize(isThroughput,mediaType,isLive){var arr=void 0,sampleSize=void 0;if(isThroughput){arr=throughputDict[mediaType];sampleSize=isLive?AVERAGE_THROUGHPUT_SAMPLE_AMOUNT_LIVE:AVERAGE_THROUGHPUT_SAMPLE_AMOUNT_VOD;}else{arr=latencyDict[mediaType];sampleSize=AVERAGE_LATENCY_SAMPLE_AMOUNT;}if(!arr){sampleSize=0;}else if(sampleSize>=arr.length){sampleSize=arr.length;}else if(isThroughput){// if throughput samples vary a lot, average over a wider sample\nfor(var i=1;i<sampleSize;++i){var ratio=arr[i]/arr[i-1];if(ratio>=THROUGHPUT_INCREASE_SCALE||ratio<=1/THROUGHPUT_DECREASE_SCALE){sampleSize+=1;if(sampleSize===arr.length){// cannot increase sampleSize beyond arr.length\nbreak;}}}}return sampleSize;}function getAverage(isThroughput,mediaType,isDynamic){// only two moving average methods defined at the moment\nreturn settings.get().streaming.abr.movingAverageMethod!==_Constants2.default.MOVING_AVERAGE_SLIDING_WINDOW?getAverageEwma(isThroughput,mediaType):getAverageSlidingWindow(isThroughput,mediaType,isDynamic);}function getAverageSlidingWindow(isThroughput,mediaType,isDynamic){var sampleSize=getSampleSize(isThroughput,mediaType,isDynamic);var dict=isThroughput?throughputDict:latencyDict;var arr=dict[mediaType];if(sampleSize===0||!arr||arr.length===0){return NaN;}arr=arr.slice(-sampleSize);// still works if sampleSize too large\n// arr.length >= 1\nreturn arr.reduce(function(total,elem){return total+elem;})/arr.length;}function getAverageEwma(isThroughput,mediaType){var halfLife=isThroughput?ewmaHalfLife.throughputHalfLife:ewmaHalfLife.latencyHalfLife;var ewmaObj=isThroughput?ewmaThroughputDict[mediaType]:ewmaLatencyDict[mediaType];if(!ewmaObj||ewmaObj.totalWeight<=0){return NaN;}// to correct for startup, divide by zero factor = 1 - Math.pow(0.5, ewmaObj.totalWeight / halfLife)\nvar fastEstimate=ewmaObj.fastEstimate/(1-Math.pow(0.5,ewmaObj.totalWeight/halfLife.fast));var slowEstimate=ewmaObj.slowEstimate/(1-Math.pow(0.5,ewmaObj.totalWeight/halfLife.slow));return isThroughput?Math.min(fastEstimate,slowEstimate):Math.max(fastEstimate,slowEstimate);}function getAverageThroughput(mediaType,isDynamic){return getAverage(true,mediaType,isDynamic);}function getSafeAverageThroughput(mediaType,isDynamic){var average=getAverageThroughput(mediaType,isDynamic);if(!isNaN(average)){average*=settings.get().streaming.abr.bandwidthSafetyFactor;}return average;}function getAverageLatency(mediaType){return getAverage(false,mediaType);}function checkSettingsForMediaType(mediaType){throughputDict[mediaType]=throughputDict[mediaType]||[];latencyDict[mediaType]=latencyDict[mediaType]||[];ewmaThroughputDict[mediaType]=ewmaThroughputDict[mediaType]||{fastEstimate:0,slowEstimate:0,totalWeight:0};ewmaLatencyDict[mediaType]=ewmaLatencyDict[mediaType]||{fastEstimate:0,slowEstimate:0,totalWeight:0};}function clearSettingsForMediaType(mediaType){delete throughputDict[mediaType];delete latencyDict[mediaType];delete ewmaThroughputDict[mediaType];delete ewmaLatencyDict[mediaType];checkSettingsForMediaType(mediaType);}function reset(){throughputDict={};latencyDict={};ewmaThroughputDict={};ewmaLatencyDict={};}var instance={push:push,getAverageThroughput:getAverageThroughput,getSafeAverageThroughput:getSafeAverageThroughput,getAverageLatency:getAverageLatency,reset:reset};setup();return instance;}ThroughputHistory.__dashjs_factory_name='ThroughputHistory';exports.default=_FactoryMaker2.default.getClassFactory(ThroughputHistory);\n//# sourceMappingURL=ThroughputHistory.js.map\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _FactoryMaker=require('../../core/FactoryMaker');var _FactoryMaker2=_interopRequireDefault(_FactoryMaker);function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}function RulesContext(config){config=config||{};var instance=void 0;var abrController=config.abrController;var switchHistory=config.switchHistory;var droppedFramesHistory=config.droppedFramesHistory;var currentRequest=config.currentRequest;var bufferOccupancyABR=config.useBufferOccupancyABR;var scheduleController=config.streamProcessor?config.streamProcessor.getScheduleController():null;var representationInfo=config.streamProcessor?config.streamProcessor.getRepresentationInfo():null;function getMediaType(){var mediaInfo=getMediaInfo();return mediaInfo?mediaInfo.type:null;}function getStreamInfo(){var mediaInfo=getMediaInfo();return mediaInfo?mediaInfo.streamInfo:null;}function getMediaInfo(){return representationInfo?representationInfo.mediaInfo:null;}function getRepresentationInfo(){return representationInfo;}function getScheduleController(){return scheduleController;}function getAbrController(){return abrController;}function getSwitchHistory(){return switchHistory;}function getDroppedFramesHistory(){return droppedFramesHistory;}function getCurrentRequest(){return currentRequest;}function useBufferOccupancyABR(){return bufferOccupancyABR;}instance={getMediaType:getMediaType,getMediaInfo:getMediaInfo,getDroppedFramesHistory:getDroppedFramesHistory,getCurrentRequest:getCurrentRequest,getSwitchHistory:getSwitchHistory,getStreamInfo:getStreamInfo,getScheduleController:getScheduleController,getAbrController:getAbrController,getRepresentationInfo:getRepresentationInfo,useBufferOccupancyABR:useBufferOccupancyABR};return instance;}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n */RulesContext.__dashjs_factory_name='RulesContext';exports.default=_FactoryMaker2.default.getClassFactory(RulesContext);\n//# sourceMappingURL=RulesContext.js.map\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});function _classCallCheck(instance,Constructor){if(!(instance instanceof Constructor)){throw new TypeError(\"Cannot call a class as a function\");}}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n *//**\n * @class\n * @ignore\n */var Metrics=function Metrics(){_classCallCheck(this,Metrics);this.metrics='';this.Range=[];this.Reporting=[];};exports.default=Metrics;\n//# sourceMappingURL=Metrics.js.map\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _FactoryMaker=require('../../core/FactoryMaker');var _FactoryMaker2=_interopRequireDefault(_FactoryMaker);function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}/**\n * @module XHRLoader\n * @ignore\n * @description Manages download of resources via HTTP.\n * @param {Object} cfg - dependencies from parent\n */function XHRLoader(cfg){cfg=cfg||{};var requestModifier=cfg.requestModifier;var instance=void 0;function load(httpRequest){// Variables will be used in the callback functions\nvar requestStartTime=new Date();var request=httpRequest.request;var xhr=new XMLHttpRequest();xhr.open(httpRequest.method,httpRequest.url,true);if(request.responseType){xhr.responseType=request.responseType;}if(request.range){xhr.setRequestHeader('Range','bytes='+request.range);}if(!request.requestStartDate){request.requestStartDate=requestStartTime;}if(requestModifier){xhr=requestModifier.modifyRequestHeader(xhr);}xhr.withCredentials=httpRequest.withCredentials;xhr.onload=httpRequest.onload;xhr.onloadend=httpRequest.onend;xhr.onerror=httpRequest.onerror;xhr.onprogress=httpRequest.progress;xhr.onabort=httpRequest.onabort;xhr.send();httpRequest.response=xhr;}function abort(request){var x=request.response;x.onloadend=x.onerror=x.onprogress=undefined;//Ignore events from aborted requests.\nx.abort();}instance={load:load,abort:abort};return instance;}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n */XHRLoader.__dashjs_factory_name='XHRLoader';var factory=_FactoryMaker2.default.getClassFactory(XHRLoader);exports.default=factory;\n//# sourceMappingURL=XHRLoader.js.map\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _Constants=require('../constants/Constants');var _Constants2=_interopRequireDefault(_Constants);var _EventBus=require('../../core/EventBus');var _EventBus2=_interopRequireDefault(_EventBus);var _Events=require('../../core/events/Events');var _Events2=_interopRequireDefault(_Events);var _FactoryMaker=require('../../core/FactoryMaker');var _FactoryMaker2=_interopRequireDefault(_FactoryMaker);var _InitCache=require('../utils/InitCache');var _InitCache2=_interopRequireDefault(_InitCache);var _SourceBufferSink=require('../SourceBufferSink');var _SourceBufferSink2=_interopRequireDefault(_SourceBufferSink);var _TextController=require('../../streaming/text/TextController');var _TextController2=_interopRequireDefault(_TextController);var _DashJSError=require('../../streaming/vo/DashJSError');var _DashJSError2=_interopRequireDefault(_DashJSError);var _Errors=require('../../core/errors/Errors');var _Errors2=_interopRequireDefault(_Errors);function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}var BUFFER_CONTROLLER_TYPE='NotFragmentedTextBufferController';/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n */function NotFragmentedTextBufferController(config){config=config||{};var context=this.context;var eventBus=(0,_EventBus2.default)(context).getInstance();var textController=(0,_TextController2.default)(context).getInstance();var errHandler=config.errHandler;var type=config.type;var mimeType=config.mimeType;var streamProcessor=config.streamProcessor;var instance=void 0,isBufferingCompleted=void 0,initialized=void 0,mediaSource=void 0,buffer=void 0,initCache=void 0;function setup(){initialized=false;mediaSource=null;isBufferingCompleted=false;eventBus.on(_Events2.default.DATA_UPDATE_COMPLETED,onDataUpdateCompleted,instance);eventBus.on(_Events2.default.INIT_FRAGMENT_LOADED,onInitFragmentLoaded,instance);}function getBufferControllerType(){return BUFFER_CONTROLLER_TYPE;}function initialize(source){setMediaSource(source);initCache=(0,_InitCache2.default)(context).getInstance();}/**\n     * @param {MediaInfo }mediaInfo\n     * @memberof BufferController#\n     */function createBuffer(mediaInfo){try{buffer=(0,_SourceBufferSink2.default)(context).create(mediaSource,mediaInfo);if(!initialized){var textBuffer=buffer.getBuffer();if(textBuffer.hasOwnProperty(_Constants2.default.INITIALIZE)){textBuffer.initialize(mimeType,streamProcessor);}initialized=true;}return buffer;}catch(e){if(mediaInfo&&(mediaInfo.isText||mediaInfo.codec.indexOf('codecs=\"stpp')!==-1||mediaInfo.codec.indexOf('codecs=\"wvtt')!==-1)){try{buffer=textController.getTextSourceBuffer();}catch(e){errHandler.error(new _DashJSError2.default(_Errors2.default.MEDIASOURCE_TYPE_UNSUPPORTED_CODE,_Errors2.default.MEDIASOURCE_TYPE_UNSUPPORTED_MESSAGE+type+' : '+e.message));}}else{errHandler.error(new _DashJSError2.default(_Errors2.default.MEDIASOURCE_TYPE_UNSUPPORTED_CODE,_Errors2.default.MEDIASOURCE_TYPE_UNSUPPORTED_MESSAGE+type));}}}function getType(){return type;}function getBuffer(){return buffer;}function setMediaSource(value){mediaSource=value;}function getMediaSource(){return mediaSource;}function getStreamProcessor(){return streamProcessor;}function getIsPruningInProgress(){return false;}function dischargePreBuffer(){}function setSeekStartTime(){//Unused - TODO Remove need for stub function\n}function getBufferLevel(){return 0;}function getIsBufferingCompleted(){return isBufferingCompleted;}function reset(errored){eventBus.off(_Events2.default.DATA_UPDATE_COMPLETED,onDataUpdateCompleted,instance);eventBus.off(_Events2.default.INIT_FRAGMENT_LOADED,onInitFragmentLoaded,instance);if(!errored&&buffer){buffer.abort();buffer.reset();buffer=null;}}function onDataUpdateCompleted(e){if(e.sender.getType()!==streamProcessor.getType()||e.error)return;var streamId=e.sender.getStreamId();var currentRepresentation=e.sender.getCurrentRepresentation();var chunk=initCache.extract(streamId,currentRepresentation?currentRepresentation.id:null);if(!chunk){eventBus.trigger(_Events2.default.TIMED_TEXT_REQUESTED,{index:0,sender:e.sender});//TODO make index dynamic if referring to MP?\n}}function onInitFragmentLoaded(e){if(e.fragmentModel!==streamProcessor.getFragmentModel()||!e.chunk.bytes){return;}initCache.save(e.chunk);buffer.append(e.chunk);eventBus.trigger(_Events2.default.STREAM_COMPLETED,{request:e.request,fragmentModel:e.fragmentModel});}function switchInitData(streamId,representationId){var chunk=initCache.extract(streamId,representationId);if(!chunk){eventBus.trigger(_Events2.default.TIMED_TEXT_REQUESTED,{index:0,sender:instance});}}function getRangeAt(){return null;}function updateTimestampOffset(MSETimeOffset){if(buffer.timestampOffset!==MSETimeOffset&&!isNaN(MSETimeOffset)){buffer.timestampOffset=MSETimeOffset;}}instance={getBufferControllerType:getBufferControllerType,initialize:initialize,createBuffer:createBuffer,getType:getType,getStreamProcessor:getStreamProcessor,setSeekStartTime:setSeekStartTime,getBuffer:getBuffer,getBufferLevel:getBufferLevel,setMediaSource:setMediaSource,getMediaSource:getMediaSource,getIsBufferingCompleted:getIsBufferingCompleted,getIsPruningInProgress:getIsPruningInProgress,dischargePreBuffer:dischargePreBuffer,switchInitData:switchInitData,getRangeAt:getRangeAt,reset:reset,updateTimestampOffset:updateTimestampOffset};setup();return instance;}NotFragmentedTextBufferController.__dashjs_factory_name=BUFFER_CONTROLLER_TYPE;exports.default=_FactoryMaker2.default.getClassFactory(NotFragmentedTextBufferController);\n//# sourceMappingURL=NotFragmentedTextBufferController.js.map\n","var global = require('../internals/global');\nvar DOMIterables = require('../internals/dom-iterables');\nvar forEach = require('../internals/array-for-each');\nvar createNonEnumerableProperty = require('../internals/create-non-enumerable-property');\n\nfor (var COLLECTION_NAME in DOMIterables) {\n  var Collection = global[COLLECTION_NAME];\n  var CollectionPrototype = Collection && Collection.prototype;\n  // some Chrome versions have non-configurable methods on DOMTokenList\n  if (CollectionPrototype && CollectionPrototype.forEach !== forEach) try {\n    createNonEnumerableProperty(CollectionPrototype, 'forEach', forEach);\n  } catch (error) {\n    CollectionPrototype.forEach = forEach;\n  }\n}\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _FactoryMaker=require('../../../core/FactoryMaker');var _FactoryMaker2=_interopRequireDefault(_FactoryMaker);function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}function DVBSelector(config){config=config||{};var instance=void 0;var blacklistController=config.blacklistController;function getNonBlacklistedBaseUrls(urls){var removedPriorities=[];var samePrioritiesFilter=function samePrioritiesFilter(el){if(removedPriorities.length){if(el.dvb_priority&&removedPriorities.indexOf(el.dvb_priority)!==-1){return false;}}return true;};var serviceLocationFilter=function serviceLocationFilter(baseUrl){if(blacklistController.contains(baseUrl.serviceLocation)){// whenever a BaseURL is removed from the available list of\n// BaseURLs, any other BaseURL with the same @priority\n// value as the BaseURL being removed shall also be removed\nif(baseUrl.dvb_priority){removedPriorities.push(baseUrl.dvb_priority);}// all URLs in the list which have a @serviceLocation\n// attribute matching an entry in the blacklist shall be\n// removed from the available list of BaseURLs\nreturn false;}return true;};return urls.filter(serviceLocationFilter).filter(samePrioritiesFilter);}function selectByWeight(availableUrls){var prioritySorter=function prioritySorter(a,b){var diff=a.dvb_priority-b.dvb_priority;return isNaN(diff)?0:diff;};var topPriorityFilter=function topPriorityFilter(baseUrl,idx,arr){return!idx||arr[0].dvb_priority&&baseUrl.dvb_priority&&arr[0].dvb_priority===baseUrl.dvb_priority;};var totalWeight=0;var cumulWeights=[];var idx=0;var rn=void 0,urls=void 0;// It shall begin by taking the set of resolved BaseURLs present or inherited at the current\n// position in the MPD, resolved and filtered as described in 10.8.2.1, that have the lowest\n// @priority attribute value.\nurls=availableUrls.sort(prioritySorter).filter(topPriorityFilter);if(urls.length){if(urls.length>1){// If there is more than one BaseURL with this lowest @priority attribute value then the Player\n// shall select one of them at random such that the probability of each BaseURL being chosen\n// is proportional to the value of its @weight attribute. The method described in RFC 2782\n// [26] or picking from a number of weighted entries is suitable for this, but there may be other\n// algorithms which achieve the same effect.\n// add all the weights together, storing the accumulated weight per entry\nurls.forEach(function(baseUrl){totalWeight+=baseUrl.dvb_weight;cumulWeights.push(totalWeight);});// pick a random number between zero and totalWeight\nrn=Math.floor(Math.random()*(totalWeight-1));// select the index for the range rn falls within\ncumulWeights.every(function(limit,index){idx=index;if(rn<limit){return false;}return true;});}return urls[idx];}}function select(baseUrls){return baseUrls&&selectByWeight(getNonBlacklistedBaseUrls(baseUrls));}instance={select:select};return instance;}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n */DVBSelector.__dashjs_factory_name='DVBSelector';exports.default=_FactoryMaker2.default.getClassFactory(DVBSelector);\n//# sourceMappingURL=DVBSelector.js.map\n","\"use strict\";Object.defineProperty(exports,\"__esModule\",{value:true});function _classCallCheck(instance,Constructor){if(!(instance instanceof Constructor)){throw new TypeError(\"Cannot call a class as a function\");}}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n *//**\n * @class\n * @ignore\n */var TextTrackInfo=function TextTrackInfo(){_classCallCheck(this,TextTrackInfo);this.captionData=null;this.label=null;this.lang=null;this.defaultTrack=false;this.kind=null;this.isFragmented=false;this.isEmbedded=false;};exports.default=TextTrackInfo;\n//# sourceMappingURL=TextTrackInfo.js.map\n","'use strict';\nvar $forEach = require('../internals/array-iteration').forEach;\nvar arrayMethodIsStrict = require('../internals/array-method-is-strict');\nvar arrayMethodUsesToLength = require('../internals/array-method-uses-to-length');\n\nvar STRICT_METHOD = arrayMethodIsStrict('forEach');\nvar USES_TO_LENGTH = arrayMethodUsesToLength('forEach');\n\n// `Array.prototype.forEach` method implementation\n// https://tc39.github.io/ecma262/#sec-array.prototype.foreach\nmodule.exports = (!STRICT_METHOD || !USES_TO_LENGTH) ? function forEach(callbackfn /* , thisArg */) {\n  return $forEach(this, callbackfn, arguments.length > 1 ? arguments[1] : undefined);\n} : [].forEach;\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _EventsBase2=require('../core/events/EventsBase');var _EventsBase3=_interopRequireDefault(_EventsBase2);function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}function _classCallCheck(instance,Constructor){if(!(instance instanceof Constructor)){throw new TypeError(\"Cannot call a class as a function\");}}function _possibleConstructorReturn(self,call){if(!self){throw new ReferenceError(\"this hasn't been initialised - super() hasn't been called\");}return call&&(typeof call===\"object\"||typeof call===\"function\")?call:self;}function _inherits(subClass,superClass){if(typeof superClass!==\"function\"&&superClass!==null){throw new TypeError(\"Super expression must either be null or a function, not \"+typeof superClass);}subClass.prototype=Object.create(superClass&&superClass.prototype,{constructor:{value:subClass,enumerable:false,writable:true,configurable:true}});if(superClass)Object.setPrototypeOf?Object.setPrototypeOf(subClass,superClass):subClass.__proto__=superClass;}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n *//**\n * @class\n * @implements EventsBase\n */var MediaPlayerEvents=function(_EventsBase){_inherits(MediaPlayerEvents,_EventsBase);/**\n     * @description Public facing external events to be used when developing a player that implements dash.js.\n     */function MediaPlayerEvents(){_classCallCheck(this,MediaPlayerEvents);/**\n         * Triggered when playback will not start yet\n         * as the MPD's availabilityStartTime is in the future.\n         * Check delay property in payload to determine time before playback will start.\n         * @event MediaPlayerEvents#AST_IN_FUTURE\n         */var _this=_possibleConstructorReturn(this,(MediaPlayerEvents.__proto__||Object.getPrototypeOf(MediaPlayerEvents)).call(this));_this.AST_IN_FUTURE='astInFuture';/**\n         * Triggered when the video element's buffer state changes to stalled.\n         * Check mediaType in payload to determine type (Video, Audio, FragmentedText).\n         * @event MediaPlayerEvents#BUFFER_EMPTY\n         */_this.BUFFER_EMPTY='bufferStalled';/**\n         * Triggered when the video element's buffer state changes to loaded.\n         * Check mediaType in payload to determine type (Video, Audio, FragmentedText).\n         * @event MediaPlayerEvents#BUFFER_LOADED\n         */_this.BUFFER_LOADED='bufferLoaded';/**\n         * Triggered when the video element's buffer state changes, either stalled or loaded. Check payload for state.\n         * @event MediaPlayerEvents#BUFFER_LEVEL_STATE_CHANGED\n         */_this.BUFFER_LEVEL_STATE_CHANGED='bufferStateChanged';/**\n         * Triggered when there is an error from the element or MSE source buffer.\n         * @event MediaPlayerEvents#ERROR\n         */_this.ERROR='error';/**\n         * Triggered when a fragment download has completed.\n         * @event MediaPlayerEvents#FRAGMENT_LOADING_COMPLETED\n         */_this.FRAGMENT_LOADING_COMPLETED='fragmentLoadingCompleted';/**\n         * Triggered when a partial fragment download has completed.\n         * @event MediaPlayerEvents#FRAGMENT_LOADING_PROGRESS\n         */_this.FRAGMENT_LOADING_PROGRESS='fragmentLoadingProgress';/**\n         * Triggered when a fragment download has started.\n         * @event MediaPlayerEvents#FRAGMENT_LOADING_STARTED\n         */_this.FRAGMENT_LOADING_STARTED='fragmentLoadingStarted';/**\n         * Triggered when a fragment download is abandoned due to detection of slow download base on the ABR abandon rule..\n         * @event MediaPlayerEvents#FRAGMENT_LOADING_ABANDONED\n         */_this.FRAGMENT_LOADING_ABANDONED='fragmentLoadingAbandoned';/**\n         * Triggered when {@link module:Debug} logger methods are called.\n         * @event MediaPlayerEvents#LOG\n         */_this.LOG='log';//TODO refactor with internal event\n/**\n         * Triggered when the manifest load is complete\n         * @event MediaPlayerEvents#MANIFEST_LOADED\n         */_this.MANIFEST_LOADED='manifestLoaded';/**\n         * Triggered anytime there is a change to the overall metrics.\n         * @event MediaPlayerEvents#METRICS_CHANGED\n         */_this.METRICS_CHANGED='metricsChanged';/**\n         * Triggered when an individual metric is added, updated or cleared.\n         * @event MediaPlayerEvents#METRIC_CHANGED\n         */_this.METRIC_CHANGED='metricChanged';/**\n         * Triggered every time a new metric is added.\n         * @event MediaPlayerEvents#METRIC_ADDED\n         */_this.METRIC_ADDED='metricAdded';/**\n         * Triggered every time a metric is updated.\n         * @event MediaPlayerEvents#METRIC_UPDATED\n         */_this.METRIC_UPDATED='metricUpdated';/**\n         * Triggered at the stream end of a period.\n         * @event MediaPlayerEvents#PERIOD_SWITCH_COMPLETED\n         */_this.PERIOD_SWITCH_COMPLETED='periodSwitchCompleted';/**\n         * Triggered when a new period starts.\n         * @event MediaPlayerEvents#PERIOD_SWITCH_STARTED\n         */_this.PERIOD_SWITCH_STARTED='periodSwitchStarted';/**\n         * Triggered when an ABR up /down switch is initiated; either by user in manual mode or auto mode via ABR rules.\n         * @event MediaPlayerEvents#QUALITY_CHANGE_REQUESTED\n         */_this.QUALITY_CHANGE_REQUESTED='qualityChangeRequested';/**\n         * Triggered when the new ABR quality is being rendered on-screen.\n         * @event MediaPlayerEvents#QUALITY_CHANGE_RENDERED\n         */_this.QUALITY_CHANGE_RENDERED='qualityChangeRendered';/**\n         * Triggered when the new track is being rendered.\n         * @event MediaPlayerEvents#TRACK_CHANGE_RENDERED\n         */_this.TRACK_CHANGE_RENDERED='trackChangeRendered';/**\n         * Triggered when the source is setup and ready.\n         * @event MediaPlayerEvents#SOURCE_INITIALIZED\n         */_this.SOURCE_INITIALIZED='sourceInitialized';/**\n         * Triggered when a stream (period) is being loaded\n         * @event MediaPlayerEvents#STREAM_INITIALIZING\n         */_this.STREAM_INITIALIZING='streamInitializing';/**\n         * Triggered when a stream (period) is loaded\n         * @event MediaPlayerEvents#STREAM_INITIALIZED\n         */_this.STREAM_INITIALIZED='streamInitialized';/**\n         * Triggered when the player has been reset.\n         * @event MediaPlayerEvents#STREAM_TEARDOWN_COMPLETE\n         */_this.STREAM_TEARDOWN_COMPLETE='streamTeardownComplete';/**\n         * Triggered once all text tracks detected in the MPD are added to the video element.\n         * @event MediaPlayerEvents#TEXT_TRACKS_ADDED\n         */_this.TEXT_TRACKS_ADDED='allTextTracksAdded';/**\n         * Triggered when a text track is added to the video element's TextTrackList\n         * @event MediaPlayerEvents#TEXT_TRACK_ADDED\n         */_this.TEXT_TRACK_ADDED='textTrackAdded';/**\n         * Triggered when a ttml chunk is parsed.\n         * @event MediaPlayerEvents#TTML_PARSED\n         */_this.TTML_PARSED='ttmlParsed';/**\n         * Triggered when a ttml chunk has to be parsed.\n         * @event MediaPlayerEvents#TTML_TO_PARSE\n         */_this.TTML_TO_PARSE='ttmlToParse';/**\n         * Triggered when a caption is rendered.\n         * @event MediaPlayerEvents#CAPTION_RENDERED\n         */_this.CAPTION_RENDERED='captionRendered';/**\n         * Triggered when the caption container is resized.\n         * @event MediaPlayerEvents#CAPTION_CONTAINER_RESIZE\n         */_this.CAPTION_CONTAINER_RESIZE='captionContainerResize';/**\n         * Sent when enough data is available that the media can be played,\n         * at least for a couple of frames.  This corresponds to the\n         * HAVE_ENOUGH_DATA readyState.\n         * @event MediaPlayerEvents#CAN_PLAY\n         */_this.CAN_PLAY='canPlay';/**\n         * Sent when playback completes.\n         * @event MediaPlayerEvents#PLAYBACK_ENDED\n         */_this.PLAYBACK_ENDED='playbackEnded';/**\n         * Sent when an error occurs.  The element's error\n         * attribute contains more information.\n         * @event MediaPlayerEvents#PLAYBACK_ERROR\n         */_this.PLAYBACK_ERROR='playbackError';/**\n         * Sent when playback is not allowed (for example if user gesture is needed).\n         * @event MediaPlayerEvents#PLAYBACK_NOT_ALLOWED\n         */_this.PLAYBACK_NOT_ALLOWED='playbackNotAllowed';/**\n         * The media's metadata has finished loading; all attributes now\n         * contain as much useful information as they're going to.\n         * @event MediaPlayerEvents#PLAYBACK_METADATA_LOADED\n         */_this.PLAYBACK_METADATA_LOADED='playbackMetaDataLoaded';/**\n         * Sent when playback is paused.\n         * @event MediaPlayerEvents#PLAYBACK_PAUSED\n         */_this.PLAYBACK_PAUSED='playbackPaused';/**\n         * Sent when the media begins to play (either for the first time, after having been paused,\n         * or after ending and then restarting).\n         *\n         * @event MediaPlayerEvents#PLAYBACK_PLAYING\n         */_this.PLAYBACK_PLAYING='playbackPlaying';/**\n         * Sent periodically to inform interested parties of progress downloading\n         * the media. Information about the current amount of the media that has\n         * been downloaded is available in the media element's buffered attribute.\n         * @event MediaPlayerEvents#PLAYBACK_PROGRESS\n         */_this.PLAYBACK_PROGRESS='playbackProgress';/**\n         * Sent when the playback speed changes.\n         * @event MediaPlayerEvents#PLAYBACK_RATE_CHANGED\n         */_this.PLAYBACK_RATE_CHANGED='playbackRateChanged';/**\n         * Sent when a seek operation completes.\n         * @event MediaPlayerEvents#PLAYBACK_SEEKED\n         */_this.PLAYBACK_SEEKED='playbackSeeked';/**\n         * Sent when a seek operation begins.\n         * @event MediaPlayerEvents#PLAYBACK_SEEKING\n         */_this.PLAYBACK_SEEKING='playbackSeeking';/**\n         * Sent when a seek operation has been asked.\n         * @event MediaPlayerEvents#PLAYBACK_SEEK_ASKED\n         */_this.PLAYBACK_SEEK_ASKED='playbackSeekAsked';/**\n         * Sent when the video element reports stalled\n         * @event MediaPlayerEvents#PLAYBACK_STALLED\n         */_this.PLAYBACK_STALLED='playbackStalled';/**\n         * Sent when playback of the media starts after having been paused;\n         * that is, when playback is resumed after a prior pause event.\n         *\n         * @event MediaPlayerEvents#PLAYBACK_STARTED\n         */_this.PLAYBACK_STARTED='playbackStarted';/**\n         * The time indicated by the element's currentTime attribute has changed.\n         * @event MediaPlayerEvents#PLAYBACK_TIME_UPDATED\n         */_this.PLAYBACK_TIME_UPDATED='playbackTimeUpdated';/**\n         * Sent when the media playback has stopped because of a temporary lack of data.\n         *\n         * @event MediaPlayerEvents#PLAYBACK_WAITING\n         */_this.PLAYBACK_WAITING='playbackWaiting';/**\n         * Manifest validity changed - As a result of an MPD validity expiration event.\n         * @event MediaPlayerEvents#MANIFEST_VALIDITY_CHANGED\n         */_this.MANIFEST_VALIDITY_CHANGED='manifestValidityChanged';return _this;}return MediaPlayerEvents;}(_EventsBase3.default);var mediaPlayerEvents=new MediaPlayerEvents();exports.default=mediaPlayerEvents;\n//# sourceMappingURL=MediaPlayerEvents.js.map\n","module.exports = function (it, Constructor, name) {\n  if (!(it instanceof Constructor)) {\n    throw TypeError('Incorrect ' + (name ? name + ' ' : '') + 'invocation');\n  } return it;\n};\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _FactoryMaker=require('../../core/FactoryMaker');var _FactoryMaker2=_interopRequireDefault(_FactoryMaker);var _Constants=require('../../streaming/constants/Constants');var _Constants2=_interopRequireDefault(_Constants);function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n */function SegmentBaseGetter(config){config=config||{};var timelineConverter=config.timelineConverter;var instance=void 0;function checkConfig(){if(!timelineConverter||!timelineConverter.hasOwnProperty('calcPeriodRelativeTimeFromMpdRelativeTime')){throw new Error(_Constants2.default.MISSING_CONFIG_ERROR);}}function getSegmentByIndex(representation,index){checkConfig();if(!representation){return null;}var len=representation.segments?representation.segments.length:-1;var seg=void 0;if(index<len){seg=representation.segments[index];if(seg&&seg.availabilityIdx===index){return seg;}}for(var i=0;i<len;i++){seg=representation.segments[i];if(seg&&seg.availabilityIdx===index){return seg;}}return null;}function getSegmentByTime(representation,requestedTime){checkConfig();var periodTime=timelineConverter.calcPeriodRelativeTimeFromMpdRelativeTime(representation,requestedTime);var index=getIndexByTime(representation,periodTime);return getSegmentByIndex(representation,index);}function getIndexByTime(representation,time){if(!representation){return-1;}var segments=representation.segments;var ln=segments?segments.length:null;var idx=-1;var epsilon=void 0,frag=void 0,ft=void 0,fd=void 0,i=void 0;if(segments&&ln>0){for(i=0;i<ln;i++){frag=segments[i];ft=frag.presentationStartTime;fd=frag.duration;epsilon=fd/2;if(time+epsilon>=ft&&time-epsilon<ft+fd){idx=frag.availabilityIdx;break;}}}return idx;}instance={getSegmentByIndex:getSegmentByIndex,getSegmentByTime:getSegmentByTime};return instance;}SegmentBaseGetter.__dashjs_factory_name='SegmentBaseGetter';var factory=_FactoryMaker2.default.getClassFactory(SegmentBaseGetter);exports.default=factory;\n//# sourceMappingURL=SegmentBaseGetter.js.map\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _Constants=require('../constants/Constants');var _Constants2=_interopRequireDefault(_Constants);var _MetricsConstants=require('../constants/MetricsConstants');var _MetricsConstants2=_interopRequireDefault(_MetricsConstants);var _EventBus=require('../../core/EventBus');var _EventBus2=_interopRequireDefault(_EventBus);var _Events=require('../../core/events/Events');var _Events2=_interopRequireDefault(_Events);var _FactoryMaker=require('../../core/FactoryMaker');var _FactoryMaker2=_interopRequireDefault(_FactoryMaker);var _Debug=require('../../core/Debug');var _Debug2=_interopRequireDefault(_Debug);function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n */var LIVE_UPDATE_PLAYBACK_TIME_INTERVAL_MS=500;function PlaybackController(){var context=this.context;var eventBus=(0,_EventBus2.default)(context).getInstance();var instance=void 0,logger=void 0,streamController=void 0,dashMetrics=void 0,adapter=void 0,videoModel=void 0,timelineConverter=void 0,liveStartTime=void 0,wallclockTimeIntervalId=void 0,earliestTime=void 0,liveDelay=void 0,bufferedRange=void 0,streamInfo=void 0,isDynamic=void 0,mediaPlayerModel=void 0,playOnceInitialized=void 0,lastLivePlaybackTime=void 0,availabilityStartTime=void 0,compatibleWithPreviousStream=void 0,isLowLatencySeekingInProgress=void 0,playbackStalled=void 0,minPlaybackRateChange=void 0,uriFragmentModel=void 0,settings=void 0;function setup(){logger=(0,_Debug2.default)(context).getInstance().getLogger(instance);reset();}function initialize(StreamInfo,compatible){streamInfo=StreamInfo;addAllListeners();isDynamic=streamInfo.manifestInfo.isDynamic;isLowLatencySeekingInProgress=false;playbackStalled=false;liveStartTime=streamInfo.start;compatibleWithPreviousStream=compatible;var ua=typeof navigator!=='undefined'?navigator.userAgent.toLowerCase():'';// Detect safari browser (special behavior for low latency streams)\nvar isSafari=/safari/.test(ua)&&!/chrome/.test(ua);minPlaybackRateChange=isSafari?0.25:0.02;eventBus.on(_Events2.default.DATA_UPDATE_COMPLETED,onDataUpdateCompleted,this);eventBus.on(_Events2.default.BYTES_APPENDED_END_FRAGMENT,onBytesAppended,this);eventBus.on(_Events2.default.LOADING_PROGRESS,onFragmentLoadProgress,this);eventBus.on(_Events2.default.BUFFER_LEVEL_STATE_CHANGED,onBufferLevelStateChanged,this);eventBus.on(_Events2.default.PERIOD_SWITCH_STARTED,onPeriodSwitchStarted,this);eventBus.on(_Events2.default.PLAYBACK_PROGRESS,onPlaybackProgression,this);eventBus.on(_Events2.default.PLAYBACK_TIME_UPDATED,onPlaybackProgression,this);eventBus.on(_Events2.default.PLAYBACK_ENDED,onPlaybackEnded,this);eventBus.on(_Events2.default.STREAM_INITIALIZING,onStreamInitializing,this);if(playOnceInitialized){playOnceInitialized=false;play();}}function onPeriodSwitchStarted(e){if(!isDynamic&&e.fromStreamInfo&&earliestTime[e.fromStreamInfo.id]!==undefined){delete bufferedRange[e.fromStreamInfo.id];delete earliestTime[e.fromStreamInfo.id];}}function getTimeToStreamEnd(){return parseFloat((getStreamEndTime()-getTime()).toFixed(5));}function getStreamEndTime(){var startTime=getStreamStartTime(true);var offset=isDynamic&&streamInfo?startTime-streamInfo.start:0;return startTime+(streamInfo?streamInfo.duration-offset:offset);}function play(){if(streamInfo&&videoModel&&videoModel.getElement()){videoModel.play();}else{playOnceInitialized=true;}}function isPaused(){return streamInfo&&videoModel?videoModel.isPaused():null;}function pause(){if(streamInfo&&videoModel){videoModel.pause();}}function isSeeking(){return streamInfo&&videoModel?videoModel.isSeeking():null;}function seek(time,stickToBuffered,internalSeek){if(streamInfo&&videoModel){if(internalSeek===true){if(time!==videoModel.getTime()){// Internal seek = seek video model only (disable 'seeking' listener),\n// buffer(s) are already appended at given time (see onBytesAppended())\nvideoModel.removeEventListener('seeking',onPlaybackSeeking);logger.info('Requesting internal seek to time: '+time);videoModel.setCurrentTime(time,stickToBuffered);}}else{eventBus.trigger(_Events2.default.PLAYBACK_SEEK_ASKED);if(streamInfo){delete bufferedRange[streamInfo.id];delete earliestTime[streamInfo.id];}logger.info('Requesting seek to time: '+time);videoModel.setCurrentTime(time,stickToBuffered);}}}function seekToLive(){var DVRMetrics=dashMetrics.getCurrentDVRInfo();var DVRWindow=DVRMetrics?DVRMetrics.range:null;seek(DVRWindow.end-mediaPlayerModel.getLiveDelay(),true,false);}function getTime(){return streamInfo&&videoModel?videoModel.getTime():null;}function getNormalizedTime(){var t=getTime();if(isDynamic&&!isNaN(availabilityStartTime)){var timeOffset=availabilityStartTime/1000;// Fix current time for firefox and safari (returned as an absolute time)\nif(t>timeOffset){t-=timeOffset;}}return t;}function getPlaybackRate(){return streamInfo&&videoModel?videoModel.getPlaybackRate():null;}function getPlayedRanges(){return streamInfo&&videoModel?videoModel.getPlayedRanges():null;}function getEnded(){return streamInfo&&videoModel?videoModel.getEnded():null;}function getIsDynamic(){return isDynamic;}function getStreamController(){return streamController;}function setLiveStartTime(value){liveStartTime=value;}function getLiveStartTime(){return liveStartTime;}/**\n     * Computes the desirable delay for the live edge to avoid a risk of getting 404 when playing at the bleeding edge\n     * @param {number} fragmentDuration - seconds?\n     * @param {number} dvrWindowSize - seconds?\n     * @param {number} minBufferTime - seconds?\n     * @returns {number} object\n     * @memberof PlaybackController#\n     */function computeLiveDelay(fragmentDuration,dvrWindowSize){var minBufferTime=arguments.length>2&&arguments[2]!==undefined?arguments[2]:NaN;var delay=void 0,ret=void 0,r=void 0,startTime=void 0;var END_OF_PLAYLIST_PADDING=10;var MIN_BUFFER_TIME_FACTOR=4;var FRAGMENT_DURATION_FACTOR=4;var uriParameters=uriFragmentModel.getURIFragmentData();if(uriParameters){r=parseInt(uriParameters.r,10);}var suggestedPresentationDelay=adapter.getSuggestedPresentationDelay();if(settings.get().streaming.lowLatencyEnabled){delay=0;}else if(mediaPlayerModel.getLiveDelay()){delay=mediaPlayerModel.getLiveDelay();// If set by user, this value takes precedence\n}else if(settings.get().streaming.liveDelayFragmentCount!==null&&!isNaN(settings.get().streaming.liveDelayFragmentCount)&&!isNaN(fragmentDuration)){delay=fragmentDuration*settings.get().streaming.liveDelayFragmentCount;}else if(r){delay=r;}else if(settings.get().streaming.useSuggestedPresentationDelay===true&&suggestedPresentationDelay!==null&&!isNaN(suggestedPresentationDelay)&&suggestedPresentationDelay>0){delay=suggestedPresentationDelay;}else if(!isNaN(fragmentDuration)){delay=fragmentDuration*FRAGMENT_DURATION_FACTOR;}else{delay=!isNaN(minBufferTime)?minBufferTime*MIN_BUFFER_TIME_FACTOR:streamInfo.manifestInfo.minBufferTime*MIN_BUFFER_TIME_FACTOR;}startTime=adapter.getAvailabilityStartTime();if(startTime!==null){availabilityStartTime=startTime;}if(dvrWindowSize>0){// cap target latency to:\n// - dvrWindowSize / 2 for short playlists\n// - dvrWindowSize - END_OF_PLAYLIST_PADDING for longer playlists\nvar targetDelayCapping=Math.max(dvrWindowSize-END_OF_PLAYLIST_PADDING,dvrWindowSize/2);ret=Math.min(delay,targetDelayCapping);}else{ret=delay;}liveDelay=ret;return ret;}function getLiveDelay(){return liveDelay;}function getCurrentLiveLatency(){if(!isDynamic||isNaN(availabilityStartTime)){return NaN;}var currentTime=getNormalizedTime();if(isNaN(currentTime)||currentTime===0){return 0;}var now=new Date().getTime()+timelineConverter.getClientTimeOffset()*1000;return Math.max(((now-availabilityStartTime-currentTime*1000)/1000).toFixed(3),0);}function reset(){liveStartTime=NaN;playOnceInitialized=false;earliestTime={};liveDelay=0;availabilityStartTime=0;bufferedRange={};if(videoModel){eventBus.off(_Events2.default.DATA_UPDATE_COMPLETED,onDataUpdateCompleted,this);eventBus.off(_Events2.default.BUFFER_LEVEL_STATE_CHANGED,onBufferLevelStateChanged,this);eventBus.off(_Events2.default.BYTES_APPENDED_END_FRAGMENT,onBytesAppended,this);eventBus.off(_Events2.default.LOADING_PROGRESS,onFragmentLoadProgress,this);eventBus.off(_Events2.default.PERIOD_SWITCH_STARTED,onPeriodSwitchStarted,this);eventBus.off(_Events2.default.PLAYBACK_PROGRESS,onPlaybackProgression,this);eventBus.off(_Events2.default.PLAYBACK_TIME_UPDATED,onPlaybackProgression,this);eventBus.off(_Events2.default.PLAYBACK_ENDED,onPlaybackEnded,this);eventBus.off(_Events2.default.STREAM_INITIALIZING,onStreamInitializing,this);stopUpdatingWallclockTime();removeAllListeners();}wallclockTimeIntervalId=null;videoModel=null;streamInfo=null;isDynamic=null;}function setConfig(config){if(!config)return;if(config.streamController){streamController=config.streamController;}if(config.dashMetrics){dashMetrics=config.dashMetrics;}if(config.mediaPlayerModel){mediaPlayerModel=config.mediaPlayerModel;}if(config.adapter){adapter=config.adapter;}if(config.videoModel){videoModel=config.videoModel;}if(config.timelineConverter){timelineConverter=config.timelineConverter;}if(config.uriFragmentModel){uriFragmentModel=config.uriFragmentModel;}if(config.settings){settings=config.settings;}}function getStartTimeFromUriParameters(){var fragData=uriFragmentModel.getURIFragmentData();var uriParameters=void 0;if(fragData){uriParameters={};var r=parseInt(fragData.r,10);if(r>=0&&streamInfo&&r<streamInfo.manifestInfo.DVRWindowSize&&fragData.t===null){fragData.t=Math.max(Math.floor(Date.now()/1000)-streamInfo.manifestInfo.DVRWindowSize,streamInfo.manifestInfo.availableFrom.getTime()/1000+streamInfo.start)+r;}uriParameters.fragS=parseFloat(fragData.s);uriParameters.fragT=parseFloat(fragData.t);}return uriParameters;}/**\n     * @param {boolean} ignoreStartOffset - ignore URL fragment start offset if true\n     * @param {number} liveEdge - liveEdge value\n     * @returns {number} object\n     * @memberof PlaybackController#\n     */function getStreamStartTime(ignoreStartOffset,liveEdge){var presentationStartTime=void 0;var startTimeOffset=NaN;if(!ignoreStartOffset){var uriParameters=getStartTimeFromUriParameters();if(uriParameters){startTimeOffset=!isNaN(uriParameters.fragS)?uriParameters.fragS:uriParameters.fragT;}else{startTimeOffset=0;}}else{startTimeOffset=streamInfo?streamInfo.start:startTimeOffset;}if(isDynamic){if(!isNaN(startTimeOffset)&&streamInfo){presentationStartTime=startTimeOffset-streamInfo.manifestInfo.availableFrom.getTime()/1000;if(presentationStartTime>liveStartTime||presentationStartTime<(!isNaN(liveEdge)?liveEdge-streamInfo.manifestInfo.DVRWindowSize:NaN)){presentationStartTime=null;}}presentationStartTime=presentationStartTime||liveStartTime;}else{if(streamInfo){if(!isNaN(startTimeOffset)&&startTimeOffset<Math.max(streamInfo.manifestInfo.duration,streamInfo.duration)&&startTimeOffset>=0){presentationStartTime=startTimeOffset;}else{var currentEarliestTime=earliestTime[streamInfo.id];//set by ready bufferStart after first onBytesAppended\npresentationStartTime=currentEarliestTime!==undefined?Math.max(currentEarliestTime.audio!==undefined?currentEarliestTime.audio:0,currentEarliestTime.video!==undefined?currentEarliestTime.video:0,streamInfo.start):streamInfo.start;}}}return presentationStartTime;}function getActualPresentationTime(currentTime){var DVRMetrics=dashMetrics.getCurrentDVRInfo();var DVRWindow=DVRMetrics?DVRMetrics.range:null;var actualTime=void 0;if(!DVRWindow){return NaN;}if(currentTime>DVRWindow.end){actualTime=Math.max(DVRWindow.end-streamInfo.manifestInfo.minBufferTime*2,DVRWindow.start);}else if(currentTime>0&&currentTime+0.250<DVRWindow.start&&Math.abs(currentTime-DVRWindow.start)<315360000){// Checking currentTime plus 250ms as the 'timeupdate' is fired with a frequency between 4Hz and 66Hz\n// https://developer.mozilla.org/en-US/docs/Web/Events/timeupdate\n// http://w3c.github.io/html/single-page.html#offsets-into-the-media-resource\n// Checking also duration of the DVR makes sense. We detected temporary situations in which currentTime\n// is bad reported by the browser which causes playback to jump to start (315360000 = 1 year)\nactualTime=DVRWindow.start;}else{actualTime=currentTime;}return actualTime;}function startUpdatingWallclockTime(){if(wallclockTimeIntervalId!==null)return;var tick=function tick(){onWallclockTime();};wallclockTimeIntervalId=setInterval(tick,settings.get().streaming.wallclockTimeUpdateInterval);}function stopUpdatingWallclockTime(){clearInterval(wallclockTimeIntervalId);wallclockTimeIntervalId=null;}function updateCurrentTime(){if(isPaused()||!isDynamic||videoModel.getReadyState()===0)return;var currentTime=getNormalizedTime();var actualTime=getActualPresentationTime(currentTime);var timeChanged=!isNaN(actualTime)&&actualTime!==currentTime;if(timeChanged){seek(actualTime);}}function onDataUpdateCompleted(e){if(e.error)return;var representationInfo=adapter.convertDataToRepresentationInfo(e.currentRepresentation);var info=representationInfo?representationInfo.mediaInfo.streamInfo:null;if(info===null||streamInfo.id!==info.id)return;streamInfo=info;updateCurrentTime();}function onCanPlay(){eventBus.trigger(_Events2.default.CAN_PLAY);}function onPlaybackStart(){logger.info('Native video element event: play');updateCurrentTime();startUpdatingWallclockTime();eventBus.trigger(_Events2.default.PLAYBACK_STARTED,{startTime:getTime()});}function onPlaybackWaiting(){logger.info('Native video element event: waiting');eventBus.trigger(_Events2.default.PLAYBACK_WAITING,{playingTime:getTime()});}function onPlaybackPlaying(){logger.info('Native video element event: playing');eventBus.trigger(_Events2.default.PLAYBACK_PLAYING,{playingTime:getTime()});}function onPlaybackPaused(){logger.info('Native video element event: pause');eventBus.trigger(_Events2.default.PLAYBACK_PAUSED,{ended:getEnded()});}function onPlaybackSeeking(){var seekTime=getTime();logger.info('Seeking to: '+seekTime);startUpdatingWallclockTime();eventBus.trigger(_Events2.default.PLAYBACK_SEEKING,{seekTime:seekTime});}function onPlaybackSeeked(){logger.info('Native video element event: seeked');eventBus.trigger(_Events2.default.PLAYBACK_SEEKED);// Reactivate 'seeking' event listener (see seek())\nvideoModel.addEventListener('seeking',onPlaybackSeeking);}function onPlaybackTimeUpdated(){if(streamInfo){eventBus.trigger(_Events2.default.PLAYBACK_TIME_UPDATED,{timeToEnd:getTimeToStreamEnd(),time:getTime()});}}function updateLivePlaybackTime(){var now=Date.now();if(!lastLivePlaybackTime||now>lastLivePlaybackTime+LIVE_UPDATE_PLAYBACK_TIME_INTERVAL_MS){lastLivePlaybackTime=now;onPlaybackTimeUpdated();}}function onPlaybackProgress(){eventBus.trigger(_Events2.default.PLAYBACK_PROGRESS);}function onPlaybackRateChanged(){var rate=getPlaybackRate();logger.info('Native video element event: ratechange: ',rate);eventBus.trigger(_Events2.default.PLAYBACK_RATE_CHANGED,{playbackRate:rate});}function onPlaybackMetaDataLoaded(){logger.info('Native video element event: loadedmetadata');eventBus.trigger(_Events2.default.PLAYBACK_METADATA_LOADED);startUpdatingWallclockTime();}// Event to handle the native video element ended event\nfunction onNativePlaybackEnded(){logger.info('Native video element event: ended');pause();stopUpdatingWallclockTime();eventBus.trigger(_Events2.default.PLAYBACK_ENDED,{'isLast':streamController.getActiveStreamInfo().isLast});}// Handle DASH PLAYBACK_ENDED event\nfunction onPlaybackEnded(e){if(wallclockTimeIntervalId&&e.isLast){// PLAYBACK_ENDED was triggered elsewhere, react.\nlogger.info('onPlaybackEnded -- PLAYBACK_ENDED but native video element didn\\'t fire ended');videoModel.setCurrentTime(getStreamEndTime());pause();stopUpdatingWallclockTime();}}function onPlaybackError(event){var target=event.target||event.srcElement;eventBus.trigger(_Events2.default.PLAYBACK_ERROR,{error:target.error});}function onWallclockTime(){eventBus.trigger(_Events2.default.WALLCLOCK_TIME_UPDATED,{isDynamic:isDynamic,time:new Date()});// Updates playback time for paused dynamic streams\n// (video element doesn't call timeupdate when the playback is paused)\nif(getIsDynamic()&&isPaused()){updateLivePlaybackTime();}}function checkTimeInRanges(time,ranges){if(ranges&&ranges.length>0){for(var i=0,len=ranges.length;i<len;i++){if(time>=ranges.start(i)&&time<ranges.end(i)){return true;}}}return false;}function onPlaybackProgression(){if(isDynamic&&settings.get().streaming.lowLatencyEnabled&&settings.get().streaming.liveCatchUpPlaybackRate>0&&!isPaused()&&!isSeeking()){if(needToCatchUp()){startPlaybackCatchUp();}else{stopPlaybackCatchUp();}}}function getBufferLevel(){var bufferLevel=null;streamController.getActiveStreamProcessors().forEach(function(p){var bl=p.getBufferLevel();if(bufferLevel===null){bufferLevel=bl;}else{bufferLevel=Math.min(bufferLevel,bl);}});return bufferLevel;}function needToCatchUp(){return settings.get().streaming.liveCatchUpPlaybackRate>0&&getTime()>0&&Math.abs(getCurrentLiveLatency()-mediaPlayerModel.getLiveDelay())>settings.get().streaming.liveCatchUpMinDrift;}function startPlaybackCatchUp(){if(videoModel){var cpr=settings.get().streaming.liveCatchUpPlaybackRate;var _liveDelay=mediaPlayerModel.getLiveDelay();var deltaLatency=getCurrentLiveLatency()-_liveDelay;var d=deltaLatency*5;// Playback rate must be between (1 - cpr) - (1 + cpr)\n// ex: if cpr is 0.5, it can have values between 0.5 - 1.5\nvar s=cpr*2/(1+Math.pow(Math.E,-d));var newRate=1-cpr+s;// take into account situations in which there are buffer stalls,\n// in which increasing playbackRate to reach target latency will\n// just cause more and more stall situations\nif(playbackStalled){var bufferLevel=getBufferLevel();if(bufferLevel>_liveDelay/2){playbackStalled=false;}else if(deltaLatency>0){newRate=1.0;}}// don't change playbackrate for small variations (don't overload element with playbackrate changes)\nif(Math.abs(videoModel.getPlaybackRate()-newRate)>minPlaybackRateChange){videoModel.setPlaybackRate(newRate);}if(settings.get().streaming.liveCatchUpMaxDrift>0&&!isLowLatencySeekingInProgress&&deltaLatency>settings.get().streaming.liveCatchUpMaxDrift){logger.info('Low Latency catchup mechanism. Latency too high, doing a seek to live point');isLowLatencySeekingInProgress=true;seekToLive();}else{isLowLatencySeekingInProgress=false;}}}function stopPlaybackCatchUp(){if(videoModel){videoModel.setPlaybackRate(1.0);}}function onBytesAppended(e){var commonEarliestTime=void 0,initialStartTime=void 0;var ranges=e.bufferedRanges;if(!ranges||!ranges.length)return;if(earliestTime[streamInfo.id]&&earliestTime[streamInfo.id].started===true){//stream has already been started.\nreturn;}var type=e.sender.getType();if(bufferedRange[streamInfo.id]===undefined){bufferedRange[streamInfo.id]=[];}bufferedRange[streamInfo.id][type]=ranges;if(earliestTime[streamInfo.id]===undefined){earliestTime[streamInfo.id]=[];earliestTime[streamInfo.id].started=false;}if(earliestTime[streamInfo.id][type]===undefined){earliestTime[streamInfo.id][type]=Math.max(ranges.start(0),streamInfo.start);}var hasVideoTrack=streamController.isTrackTypePresent(_Constants2.default.VIDEO);var hasAudioTrack=streamController.isTrackTypePresent(_Constants2.default.AUDIO);initialStartTime=getStreamStartTime(false);if(hasAudioTrack&&hasVideoTrack){//current stream has audio and video contents\nif(!isNaN(earliestTime[streamInfo.id].audio)&&!isNaN(earliestTime[streamInfo.id].video)){if(earliestTime[streamInfo.id].audio<earliestTime[streamInfo.id].video){// common earliest is video time\n// check buffered audio range has video time, if ok, we seek, otherwise, we wait some other data\ncommonEarliestTime=earliestTime[streamInfo.id].video>initialStartTime?earliestTime[streamInfo.id].video:initialStartTime;ranges=bufferedRange[streamInfo.id].audio;}else{// common earliest is audio time\n// check buffered video range has audio time, if ok, we seek, otherwise, we wait some other data\ncommonEarliestTime=earliestTime[streamInfo.id].audio>initialStartTime?earliestTime[streamInfo.id].audio:initialStartTime;ranges=bufferedRange[streamInfo.id].video;}if(checkTimeInRanges(commonEarliestTime,ranges)){if(!(checkTimeInRanges(getNormalizedTime(),bufferedRange[streamInfo.id].audio)&&checkTimeInRanges(getNormalizedTime(),bufferedRange[streamInfo.id].video))){if(!compatibleWithPreviousStream&&commonEarliestTime!==0){seek(commonEarliestTime,true,true);}}earliestTime[streamInfo.id].started=true;}}}else{//current stream has only audio or only video content\nif(earliestTime[streamInfo.id][type]){commonEarliestTime=earliestTime[streamInfo.id][type]>initialStartTime?earliestTime[streamInfo.id][type]:initialStartTime;if(!compatibleWithPreviousStream){seek(commonEarliestTime,false,true);}earliestTime[streamInfo.id].started=true;}}}function onFragmentLoadProgress(e){// If using fetch and stream mode is not available, readjust live latency so it is 20% higher than segment duration\nif(e.stream===false&&settings.get().streaming.lowLatencyEnabled&&!isNaN(e.request.duration)){var minDelay=1.2*e.request.duration;if(minDelay>mediaPlayerModel.getLiveDelay()){logger.warn('Browser does not support fetch API with StreamReader. Increasing live delay to be 20% higher than segment duration:',minDelay.toFixed(2));var s={streaming:{liveDelay:minDelay}};settings.update(s);}}}function onBufferLevelStateChanged(e){// do not stall playback when get an event from Stream that is not active\nif(e.streamInfo.id!==streamInfo.id)return;if(settings.get().streaming.lowLatencyEnabled){if(e.state===_MetricsConstants2.default.BUFFER_EMPTY&&!isSeeking()){if(!playbackStalled){playbackStalled=true;stopPlaybackCatchUp();}}}else{videoModel.setStallState(e.mediaType,e.state===_MetricsConstants2.default.BUFFER_EMPTY);}}function onPlaybackStalled(e){eventBus.trigger(_Events2.default.PLAYBACK_STALLED,{e:e});}function onStreamInitializing(e){applyServiceDescription(e.streamInfo,e.mediaInfo);}function applyServiceDescription(streamInfo,mediaInfo){if(streamInfo&&streamInfo.manifestInfo&&streamInfo.manifestInfo.serviceDescriptions){// is there a service description for low latency defined?\nvar llsd=void 0;for(var i=0;i<streamInfo.manifestInfo.serviceDescriptions.length;i++){var sd=streamInfo.manifestInfo.serviceDescriptions[i];if(sd.schemeIdUri===_Constants2.default.SERVICE_DESCRIPTION_LL_SCHEME){llsd=sd;break;}}if(llsd){if(mediaInfo&&mediaInfo.supplementalProperties&&mediaInfo.supplementalProperties[_Constants2.default.SUPPLEMENTAL_PROPERTY_LL_SCHEME]==='true'){if(llsd.latency&&llsd.latency.target>0){logger.debug('Apply LL properties coming from service description. Target Latency (ms):',llsd.latency.target);settings.update({streaming:{lowLatencyEnabled:true,liveDelay:llsd.latency.target/1000,liveCatchUpMinDrift:llsd.latency.max>llsd.latency.target?(llsd.latency.max-llsd.latency.target)/1000:undefined}});}if(llsd.playbackRate&&llsd.playbackRate.max>1.0){logger.debug('Apply LL properties coming from service description. Max PlaybackRate:',llsd.playbackRate.max);settings.update({streaming:{lowLatencyEnabled:true,liveCatchUpPlaybackRate:llsd.playbackRate.max-1.0}});}}}}}function addAllListeners(){videoModel.addEventListener('canplay',onCanPlay);videoModel.addEventListener('play',onPlaybackStart);videoModel.addEventListener('waiting',onPlaybackWaiting);videoModel.addEventListener('playing',onPlaybackPlaying);videoModel.addEventListener('pause',onPlaybackPaused);videoModel.addEventListener('error',onPlaybackError);videoModel.addEventListener('seeking',onPlaybackSeeking);videoModel.addEventListener('seeked',onPlaybackSeeked);videoModel.addEventListener('timeupdate',onPlaybackTimeUpdated);videoModel.addEventListener('progress',onPlaybackProgress);videoModel.addEventListener('ratechange',onPlaybackRateChanged);videoModel.addEventListener('loadedmetadata',onPlaybackMetaDataLoaded);videoModel.addEventListener('stalled',onPlaybackStalled);videoModel.addEventListener('ended',onNativePlaybackEnded);}function removeAllListeners(){videoModel.removeEventListener('canplay',onCanPlay);videoModel.removeEventListener('play',onPlaybackStart);videoModel.removeEventListener('waiting',onPlaybackWaiting);videoModel.removeEventListener('playing',onPlaybackPlaying);videoModel.removeEventListener('pause',onPlaybackPaused);videoModel.removeEventListener('error',onPlaybackError);videoModel.removeEventListener('seeking',onPlaybackSeeking);videoModel.removeEventListener('seeked',onPlaybackSeeked);videoModel.removeEventListener('timeupdate',onPlaybackTimeUpdated);videoModel.removeEventListener('progress',onPlaybackProgress);videoModel.removeEventListener('ratechange',onPlaybackRateChanged);videoModel.removeEventListener('loadedmetadata',onPlaybackMetaDataLoaded);videoModel.removeEventListener('stalled',onPlaybackStalled);videoModel.removeEventListener('ended',onNativePlaybackEnded);}instance={initialize:initialize,setConfig:setConfig,getStartTimeFromUriParameters:getStartTimeFromUriParameters,getStreamStartTime:getStreamStartTime,getTimeToStreamEnd:getTimeToStreamEnd,getTime:getTime,getNormalizedTime:getNormalizedTime,getPlaybackRate:getPlaybackRate,getPlayedRanges:getPlayedRanges,getEnded:getEnded,getIsDynamic:getIsDynamic,getStreamController:getStreamController,setLiveStartTime:setLiveStartTime,getLiveStartTime:getLiveStartTime,computeLiveDelay:computeLiveDelay,getLiveDelay:getLiveDelay,getCurrentLiveLatency:getCurrentLiveLatency,play:play,isPaused:isPaused,pause:pause,isSeeking:isSeeking,seek:seek,reset:reset};setup();return instance;}PlaybackController.__dashjs_factory_name='PlaybackController';exports.default=_FactoryMaker2.default.getSingletonFactory(PlaybackController);\n//# sourceMappingURL=PlaybackController.js.map\n","var getBuiltIn = require('../internals/get-built-in');\n\nmodule.exports = getBuiltIn('document', 'documentElement');\n","module.exports = function (it) {\n  if (typeof it != 'function') {\n    throw TypeError(String(it) + ' is not a function');\n  } return it;\n};\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _FactoryMaker=require('../../core/FactoryMaker');var _FactoryMaker2=_interopRequireDefault(_FactoryMaker);var _Debug=require('../../core/Debug');var _Debug2=_interopRequireDefault(_Debug);function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n */var WEBVTT='WEBVTT';function VTTParser(){var context=this.context;var instance=void 0,logger=void 0,regExNewLine=void 0,regExToken=void 0,regExWhiteSpace=void 0,regExWhiteSpaceWordBoundary=void 0;function setup(){logger=(0,_Debug2.default)(context).getInstance().getLogger(instance);regExNewLine=/(?:\\r\\n|\\r|\\n)/gm;regExToken=/-->/;regExWhiteSpace=/(^[\\s]+|[\\s]+$)/g;regExWhiteSpaceWordBoundary=/\\s\\b/g;}function parse(data){var captionArray=[];var len=void 0,lastStartTime=void 0;if(!data){return captionArray;}data=data.split(regExNewLine);len=data.length;lastStartTime=-1;for(var i=0;i<len;i++){var item=data[i];if(item.length>0&&item!==WEBVTT){if(item.match(regExToken)){var attributes=parseItemAttributes(item);var cuePoints=attributes.cuePoints;var styles=attributes.styles;var text=getSublines(data,i+1);var startTime=convertCuePointTimes(cuePoints[0].replace(regExWhiteSpace,''));var endTime=convertCuePointTimes(cuePoints[1].replace(regExWhiteSpace,''));if(!isNaN(startTime)&&!isNaN(endTime)&&startTime>=lastStartTime&&endTime>startTime){if(text!==''){lastStartTime=startTime;//TODO Make VO external so other parsers can use.\ncaptionArray.push({start:startTime,end:endTime,data:text,styles:styles});}else{logger.error('Skipping cue due to empty/malformed cue text');}}else{logger.error('Skipping cue due to incorrect cue timing');}}}}return captionArray;}function convertCuePointTimes(time){var timeArray=time.split(':');var len=timeArray.length-1;time=parseInt(timeArray[len-1],10)*60+parseFloat(timeArray[len]);if(len===2){time+=parseInt(timeArray[0],10)*3600;}return time;}function parseItemAttributes(data){var vttCuePoints=data.split(regExToken);var arr=vttCuePoints[1].split(regExWhiteSpaceWordBoundary);arr.shift();//remove first array index it is empty...\nvttCuePoints[1]=arr[0];arr.shift();return{cuePoints:vttCuePoints,styles:getCaptionStyles(arr)};}function getCaptionStyles(arr){var styleObject={};arr.forEach(function(element){if(element.split(/:/).length>1){var val=element.split(/:/)[1];if(val&&val.search(/%/)!=-1){val=parseInt(val.replace(/%/,''),10);}if(element.match(/align/)||element.match(/A/)){styleObject.align=val;}if(element.match(/line/)||element.match(/L/)){styleObject.line=val;}if(element.match(/position/)||element.match(/P/)){styleObject.position=val;}if(element.match(/size/)||element.match(/S/)){styleObject.size=val;}}});return styleObject;}/*\n    * VTT can have multiple lines to display per cuepoint.\n    */function getSublines(data,idx){var i=idx;var subline='';var lineData='';var lineCount=void 0;while(data[i]!==''&&i<data.length){i++;}lineCount=i-idx;if(lineCount>1){for(var j=0;j<lineCount;j++){lineData=data[idx+j];if(!lineData.match(regExToken)){subline+=lineData;if(j!==lineCount-1){subline+='\\n';}}else{// caption text should not have '-->' in it\nsubline='';break;}}}else{lineData=data[idx];if(!lineData.match(regExToken))subline=lineData;}return subline;}instance={parse:parse};setup();return instance;}VTTParser.__dashjs_factory_name='VTTParser';exports.default=_FactoryMaker2.default.getSingletonFactory(VTTParser);\n//# sourceMappingURL=VTTParser.js.map\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _EventBus=require('../core/EventBus');var _EventBus2=_interopRequireDefault(_EventBus);var _Events=require('../core/events/Events');var _Events2=_interopRequireDefault(_Events);var _FactoryMaker=require('../core/FactoryMaker');var _FactoryMaker2=_interopRequireDefault(_FactoryMaker);var _Debug=require('../core/Debug');var _Debug2=_interopRequireDefault(_Debug);var _Errors=require('../core/errors/Errors');var _Errors2=_interopRequireDefault(_Errors);function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}function ManifestUpdater(){var context=this.context;var eventBus=(0,_EventBus2.default)(context).getInstance();var instance=void 0,logger=void 0,refreshDelay=void 0,refreshTimer=void 0,isPaused=void 0,isUpdating=void 0,manifestLoader=void 0,manifestModel=void 0,adapter=void 0,errHandler=void 0,settings=void 0;function setup(){logger=(0,_Debug2.default)(context).getInstance().getLogger(instance);}function setConfig(config){if(!config)return;if(config.manifestModel){manifestModel=config.manifestModel;}if(config.adapter){adapter=config.adapter;}if(config.manifestLoader){manifestLoader=config.manifestLoader;}if(config.errHandler){errHandler=config.errHandler;}if(config.settings){settings=config.settings;}}function initialize(){resetInitialSettings();eventBus.on(_Events2.default.STREAMS_COMPOSED,onStreamsComposed,this);eventBus.on(_Events2.default.PLAYBACK_STARTED,onPlaybackStarted,this);eventBus.on(_Events2.default.PLAYBACK_PAUSED,onPlaybackPaused,this);eventBus.on(_Events2.default.INTERNAL_MANIFEST_LOADED,onManifestLoaded,this);}function setManifest(manifest){update(manifest);}function resetInitialSettings(){refreshDelay=NaN;isUpdating=false;isPaused=true;stopManifestRefreshTimer();}function reset(){eventBus.off(_Events2.default.PLAYBACK_STARTED,onPlaybackStarted,this);eventBus.off(_Events2.default.PLAYBACK_PAUSED,onPlaybackPaused,this);eventBus.off(_Events2.default.STREAMS_COMPOSED,onStreamsComposed,this);eventBus.off(_Events2.default.INTERNAL_MANIFEST_LOADED,onManifestLoaded,this);resetInitialSettings();}function stopManifestRefreshTimer(){if(refreshTimer!==null){clearTimeout(refreshTimer);refreshTimer=null;}}function startManifestRefreshTimer(delay){stopManifestRefreshTimer();if(isNaN(delay)&&!isNaN(refreshDelay)){delay=refreshDelay*1000;}if(!isNaN(delay)){logger.debug('Refresh manifest in '+delay+' milliseconds.');refreshTimer=setTimeout(onRefreshTimer,delay);}}function refreshManifest(){isUpdating=true;var manifest=manifestModel.getValue();var url=manifest.url;var location=adapter.getLocation(manifest);if(location){url=location;}manifestLoader.load(url);}function update(manifest){manifestModel.setValue(manifest);var date=new Date();var latencyOfLastUpdate=(date.getTime()-manifest.loadedTime.getTime())/1000;refreshDelay=adapter.getManifestUpdatePeriod(manifest,latencyOfLastUpdate);// setTimeout uses a 32 bit number to store the delay. Any number greater than it\n// will cause event associated with setTimeout to trigger immediately\nif(refreshDelay*1000>0x7FFFFFFF){refreshDelay=0x7FFFFFFF/1000;}eventBus.trigger(_Events2.default.MANIFEST_UPDATED,{manifest:manifest});logger.info('Manifest has been refreshed at '+date+'['+date.getTime()/1000+'] ');if(!isPaused){startManifestRefreshTimer();}}function onRefreshTimer(){if(isPaused&&!settings.get().streaming.scheduleWhilePaused){return;}if(isUpdating){startManifestRefreshTimer(settings.get().streaming.manifestUpdateRetryInterval);return;}refreshManifest();}function onManifestLoaded(e){if(!e.error){update(e.manifest);}else if(e.error.code===_Errors2.default.MANIFEST_LOADER_PARSING_FAILURE_ERROR_CODE){errHandler.error(e.error);}}function onPlaybackStarted()/*e*/{isPaused=false;startManifestRefreshTimer();}function onPlaybackPaused()/*e*/{isPaused=true;stopManifestRefreshTimer();}function onStreamsComposed()/*e*/{// When streams are ready we can consider manifest update completed. Resolve the update promise.\nisUpdating=false;}instance={initialize:initialize,setManifest:setManifest,refreshManifest:refreshManifest,setConfig:setConfig,reset:reset};setup();return instance;}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n */ManifestUpdater.__dashjs_factory_name='ManifestUpdater';exports.default=_FactoryMaker2.default.getClassFactory(ManifestUpdater);\n//# sourceMappingURL=ManifestUpdater.js.map\n","var wellKnownSymbol = require('../internals/well-known-symbol');\n\nvar ITERATOR = wellKnownSymbol('iterator');\nvar SAFE_CLOSING = false;\n\ntry {\n  var called = 0;\n  var iteratorWithReturn = {\n    next: function () {\n      return { done: !!called++ };\n    },\n    'return': function () {\n      SAFE_CLOSING = true;\n    }\n  };\n  iteratorWithReturn[ITERATOR] = function () {\n    return this;\n  };\n  // eslint-disable-next-line no-throw-literal\n  Array.from(iteratorWithReturn, function () { throw 2; });\n} catch (error) { /* empty */ }\n\nmodule.exports = function (exec, SKIP_CLOSING) {\n  if (!SKIP_CLOSING && !SAFE_CLOSING) return false;\n  var ITERATION_SUPPORT = false;\n  try {\n    var object = {};\n    object[ITERATOR] = function () {\n      return {\n        next: function () {\n          return { done: ITERATION_SUPPORT = true };\n        }\n      };\n    };\n    exec(object);\n  } catch (error) { /* empty */ }\n  return ITERATION_SUPPORT;\n};\n","var userAgent = require('../internals/engine-user-agent');\n\nmodule.exports = /(iphone|ipod|ipad).*applewebkit/i.test(userAgent);\n","'use strict';\n\nmodule.exports = function bind(fn, thisArg) {\n  return function wrap() {\n    var args = new Array(arguments.length);\n    for (var i = 0; i < args.length; i++) {\n      args[i] = arguments[i];\n    }\n    return fn.apply(thisArg, args);\n  };\n};\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _CoreEvents2=require('./CoreEvents');var _CoreEvents3=_interopRequireDefault(_CoreEvents2);function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}function _classCallCheck(instance,Constructor){if(!(instance instanceof Constructor)){throw new TypeError(\"Cannot call a class as a function\");}}function _possibleConstructorReturn(self,call){if(!self){throw new ReferenceError(\"this hasn't been initialised - super() hasn't been called\");}return call&&(typeof call===\"object\"||typeof call===\"function\")?call:self;}function _inherits(subClass,superClass){if(typeof superClass!==\"function\"&&superClass!==null){throw new TypeError(\"Super expression must either be null or a function, not \"+typeof superClass);}subClass.prototype=Object.create(superClass&&superClass.prototype,{constructor:{value:subClass,enumerable:false,writable:true,configurable:true}});if(superClass)Object.setPrototypeOf?Object.setPrototypeOf(subClass,superClass):subClass.__proto__=superClass;}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n *//**\n * @class\n * @ignore\n */var Events=function(_CoreEvents){_inherits(Events,_CoreEvents);function Events(){_classCallCheck(this,Events);return _possibleConstructorReturn(this,(Events.__proto__||Object.getPrototypeOf(Events)).apply(this,arguments));}return Events;}(_CoreEvents3.default);var events=new Events();exports.default=events;\n//# sourceMappingURL=Events.js.map\n","// `RequireObjectCoercible` abstract operation\n// https://tc39.github.io/ecma262/#sec-requireobjectcoercible\nmodule.exports = function (it) {\n  if (it == undefined) throw TypeError(\"Can't call method on \" + it);\n  return it;\n};\n","var fails = require('../internals/fails');\nvar wellKnownSymbol = require('../internals/well-known-symbol');\nvar V8_VERSION = require('../internals/engine-v8-version');\n\nvar SPECIES = wellKnownSymbol('species');\n\nmodule.exports = function (METHOD_NAME) {\n  // We can't use this feature detection in V8 since it causes\n  // deoptimization and serious performance degradation\n  // https://github.com/zloirock/core-js/issues/677\n  return V8_VERSION >= 51 || !fails(function () {\n    var array = [];\n    var constructor = array.constructor = {};\n    constructor[SPECIES] = function () {\n      return { foo: 1 };\n    };\n    return array[METHOD_NAME](Boolean).foo !== 1;\n  });\n};\n","'use strict'\n\nexports.byteLength = byteLength\nexports.toByteArray = toByteArray\nexports.fromByteArray = fromByteArray\n\nvar lookup = []\nvar revLookup = []\nvar Arr = typeof Uint8Array !== 'undefined' ? Uint8Array : Array\n\nvar code = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/'\nfor (var i = 0, len = code.length; i < len; ++i) {\n  lookup[i] = code[i]\n  revLookup[code.charCodeAt(i)] = i\n}\n\n// Support decoding URL-safe base64 strings, as Node.js does.\n// See: https://en.wikipedia.org/wiki/Base64#URL_applications\nrevLookup['-'.charCodeAt(0)] = 62\nrevLookup['_'.charCodeAt(0)] = 63\n\nfunction getLens (b64) {\n  var len = b64.length\n\n  if (len % 4 > 0) {\n    throw new Error('Invalid string. Length must be a multiple of 4')\n  }\n\n  // Trim off extra bytes after placeholder bytes are found\n  // See: https://github.com/beatgammit/base64-js/issues/42\n  var validLen = b64.indexOf('=')\n  if (validLen === -1) validLen = len\n\n  var placeHoldersLen = validLen === len\n    ? 0\n    : 4 - (validLen % 4)\n\n  return [validLen, placeHoldersLen]\n}\n\n// base64 is 4/3 + up to two characters of the original data\nfunction byteLength (b64) {\n  var lens = getLens(b64)\n  var validLen = lens[0]\n  var placeHoldersLen = lens[1]\n  return ((validLen + placeHoldersLen) * 3 / 4) - placeHoldersLen\n}\n\nfunction _byteLength (b64, validLen, placeHoldersLen) {\n  return ((validLen + placeHoldersLen) * 3 / 4) - placeHoldersLen\n}\n\nfunction toByteArray (b64) {\n  var tmp\n  var lens = getLens(b64)\n  var validLen = lens[0]\n  var placeHoldersLen = lens[1]\n\n  var arr = new Arr(_byteLength(b64, validLen, placeHoldersLen))\n\n  var curByte = 0\n\n  // if there are placeholders, only get up to the last complete 4 chars\n  var len = placeHoldersLen > 0\n    ? validLen - 4\n    : validLen\n\n  var i\n  for (i = 0; i < len; i += 4) {\n    tmp =\n      (revLookup[b64.charCodeAt(i)] << 18) |\n      (revLookup[b64.charCodeAt(i + 1)] << 12) |\n      (revLookup[b64.charCodeAt(i + 2)] << 6) |\n      revLookup[b64.charCodeAt(i + 3)]\n    arr[curByte++] = (tmp >> 16) & 0xFF\n    arr[curByte++] = (tmp >> 8) & 0xFF\n    arr[curByte++] = tmp & 0xFF\n  }\n\n  if (placeHoldersLen === 2) {\n    tmp =\n      (revLookup[b64.charCodeAt(i)] << 2) |\n      (revLookup[b64.charCodeAt(i + 1)] >> 4)\n    arr[curByte++] = tmp & 0xFF\n  }\n\n  if (placeHoldersLen === 1) {\n    tmp =\n      (revLookup[b64.charCodeAt(i)] << 10) |\n      (revLookup[b64.charCodeAt(i + 1)] << 4) |\n      (revLookup[b64.charCodeAt(i + 2)] >> 2)\n    arr[curByte++] = (tmp >> 8) & 0xFF\n    arr[curByte++] = tmp & 0xFF\n  }\n\n  return arr\n}\n\nfunction tripletToBase64 (num) {\n  return lookup[num >> 18 & 0x3F] +\n    lookup[num >> 12 & 0x3F] +\n    lookup[num >> 6 & 0x3F] +\n    lookup[num & 0x3F]\n}\n\nfunction encodeChunk (uint8, start, end) {\n  var tmp\n  var output = []\n  for (var i = start; i < end; i += 3) {\n    tmp =\n      ((uint8[i] << 16) & 0xFF0000) +\n      ((uint8[i + 1] << 8) & 0xFF00) +\n      (uint8[i + 2] & 0xFF)\n    output.push(tripletToBase64(tmp))\n  }\n  return output.join('')\n}\n\nfunction fromByteArray (uint8) {\n  var tmp\n  var len = uint8.length\n  var extraBytes = len % 3 // if we have 1 byte left, pad 2 bytes\n  var parts = []\n  var maxChunkLength = 16383 // must be multiple of 3\n\n  // go through the array every three bytes, we'll deal with trailing stuff later\n  for (var i = 0, len2 = len - extraBytes; i < len2; i += maxChunkLength) {\n    parts.push(encodeChunk(\n      uint8, i, (i + maxChunkLength) > len2 ? len2 : (i + maxChunkLength)\n    ))\n  }\n\n  // pad the end with zeros, but make sure to not forget the extra bytes\n  if (extraBytes === 1) {\n    tmp = uint8[len - 1]\n    parts.push(\n      lookup[tmp >> 2] +\n      lookup[(tmp << 4) & 0x3F] +\n      '=='\n    )\n  } else if (extraBytes === 2) {\n    tmp = (uint8[len - 2] << 8) + uint8[len - 1]\n    parts.push(\n      lookup[tmp >> 10] +\n      lookup[(tmp >> 4) & 0x3F] +\n      lookup[(tmp << 2) & 0x3F] +\n      '='\n    )\n  }\n\n  return parts.join('')\n}\n","var dom = require('./dom')\nexports.DOMImplementation = dom.DOMImplementation\nexports.XMLSerializer = dom.XMLSerializer\nexports.DOMParser = require('./dom-parser').DOMParser\n","var anObject = require('../internals/an-object');\nvar isArrayIteratorMethod = require('../internals/is-array-iterator-method');\nvar toLength = require('../internals/to-length');\nvar bind = require('../internals/function-bind-context');\nvar getIteratorMethod = require('../internals/get-iterator-method');\nvar callWithSafeIterationClosing = require('../internals/call-with-safe-iteration-closing');\n\nvar Result = function (stopped, result) {\n  this.stopped = stopped;\n  this.result = result;\n};\n\nvar iterate = module.exports = function (iterable, fn, that, AS_ENTRIES, IS_ITERATOR) {\n  var boundFunction = bind(fn, that, AS_ENTRIES ? 2 : 1);\n  var iterator, iterFn, index, length, result, next, step;\n\n  if (IS_ITERATOR) {\n    iterator = iterable;\n  } else {\n    iterFn = getIteratorMethod(iterable);\n    if (typeof iterFn != 'function') throw TypeError('Target is not iterable');\n    // optimisation for array iterators\n    if (isArrayIteratorMethod(iterFn)) {\n      for (index = 0, length = toLength(iterable.length); length > index; index++) {\n        result = AS_ENTRIES\n          ? boundFunction(anObject(step = iterable[index])[0], step[1])\n          : boundFunction(iterable[index]);\n        if (result && result instanceof Result) return result;\n      } return new Result(false);\n    }\n    iterator = iterFn.call(iterable);\n  }\n\n  next = iterator.next;\n  while (!(step = next.call(iterator)).done) {\n    result = callWithSafeIterationClosing(iterator, boundFunction, step.value, AS_ENTRIES);\n    if (typeof result == 'object' && result && result instanceof Result) return result;\n  } return new Result(false);\n};\n\niterate.stop = function (result) {\n  return new Result(true, result);\n};\n","var toInteger = require('../internals/to-integer');\n\nvar max = Math.max;\nvar min = Math.min;\n\n// Helper for a popular repeating case of the spec:\n// Let integer be ? ToInteger(index).\n// If integer < 0, let result be max((length + integer), 0); else let result be min(integer, length).\nmodule.exports = function (index, length) {\n  var integer = toInteger(index);\n  return integer < 0 ? max(integer + length, 0) : min(integer, length);\n};\n","var global = require('../internals/global');\nvar getOwnPropertyDescriptor = require('../internals/object-get-own-property-descriptor').f;\nvar createNonEnumerableProperty = require('../internals/create-non-enumerable-property');\nvar redefine = require('../internals/redefine');\nvar setGlobal = require('../internals/set-global');\nvar copyConstructorProperties = require('../internals/copy-constructor-properties');\nvar isForced = require('../internals/is-forced');\n\n/*\n  options.target      - name of the target object\n  options.global      - target is the global object\n  options.stat        - export as static methods of target\n  options.proto       - export as prototype methods of target\n  options.real        - real prototype method for the `pure` version\n  options.forced      - export even if the native feature is available\n  options.bind        - bind methods to the target, required for the `pure` version\n  options.wrap        - wrap constructors to preventing global pollution, required for the `pure` version\n  options.unsafe      - use the simple assignment of property instead of delete + defineProperty\n  options.sham        - add a flag to not completely full polyfills\n  options.enumerable  - export as enumerable property\n  options.noTargetGet - prevent calling a getter on target\n*/\nmodule.exports = function (options, source) {\n  var TARGET = options.target;\n  var GLOBAL = options.global;\n  var STATIC = options.stat;\n  var FORCED, target, key, targetProperty, sourceProperty, descriptor;\n  if (GLOBAL) {\n    target = global;\n  } else if (STATIC) {\n    target = global[TARGET] || setGlobal(TARGET, {});\n  } else {\n    target = (global[TARGET] || {}).prototype;\n  }\n  if (target) for (key in source) {\n    sourceProperty = source[key];\n    if (options.noTargetGet) {\n      descriptor = getOwnPropertyDescriptor(target, key);\n      targetProperty = descriptor && descriptor.value;\n    } else targetProperty = target[key];\n    FORCED = isForced(GLOBAL ? key : TARGET + (STATIC ? '.' : '#') + key, options.forced);\n    // contained in target\n    if (!FORCED && targetProperty !== undefined) {\n      if (typeof sourceProperty === typeof targetProperty) continue;\n      copyConstructorProperties(sourceProperty, targetProperty);\n    }\n    // add a flag to not completely full polyfills\n    if (options.sham || (targetProperty && targetProperty.sham)) {\n      createNonEnumerableProperty(sourceProperty, 'sham', true);\n    }\n    // extend global\n    redefine(target, key, sourceProperty, options);\n  }\n};\n","var internalObjectKeys = require('../internals/object-keys-internal');\nvar enumBugKeys = require('../internals/enum-bug-keys');\n\nvar hiddenKeys = enumBugKeys.concat('length', 'prototype');\n\n// `Object.getOwnPropertyNames` method\n// https://tc39.github.io/ecma262/#sec-object.getownpropertynames\nexports.f = Object.getOwnPropertyNames || function getOwnPropertyNames(O) {\n  return internalObjectKeys(O, hiddenKeys);\n};\n","\"use strict\";Object.defineProperty(exports,\"__esModule\",{value:true});function _classCallCheck(instance,Constructor){if(!(instance instanceof Constructor)){throw new TypeError(\"Cannot call a class as a function\");}}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n *//**\n * @classdesc Represents a 128-bit keyID and 128-bit encryption key\n * @ignore\n */var KeyPair=/**\n     * @param {string} keyID 128-bit key ID, base64 encoded, with no padding\n     * @param {string} key 128-bit encryption key, base64 encoded, with no padding\n     * @class\n     * @ignore\n     */function KeyPair(keyID,key){_classCallCheck(this,KeyPair);this.keyID=keyID;this.key=key;};exports.default=KeyPair;\n//# sourceMappingURL=KeyPair.js.map\n","'use strict';\n\nvar utils = require('./utils');\nvar normalizeHeaderName = require('./helpers/normalizeHeaderName');\n\nvar DEFAULT_CONTENT_TYPE = {\n  'Content-Type': 'application/x-www-form-urlencoded'\n};\n\nfunction setContentTypeIfUnset(headers, value) {\n  if (!utils.isUndefined(headers) && utils.isUndefined(headers['Content-Type'])) {\n    headers['Content-Type'] = value;\n  }\n}\n\nfunction getDefaultAdapter() {\n  var adapter;\n  if (typeof XMLHttpRequest !== 'undefined') {\n    // For browsers use XHR adapter\n    adapter = require('./adapters/xhr');\n  } else if (typeof process !== 'undefined' && Object.prototype.toString.call(process) === '[object process]') {\n    // For node use HTTP adapter\n    adapter = require('./adapters/http');\n  }\n  return adapter;\n}\n\nvar defaults = {\n  adapter: getDefaultAdapter(),\n\n  transformRequest: [function transformRequest(data, headers) {\n    normalizeHeaderName(headers, 'Accept');\n    normalizeHeaderName(headers, 'Content-Type');\n    if (utils.isFormData(data) ||\n      utils.isArrayBuffer(data) ||\n      utils.isBuffer(data) ||\n      utils.isStream(data) ||\n      utils.isFile(data) ||\n      utils.isBlob(data)\n    ) {\n      return data;\n    }\n    if (utils.isArrayBufferView(data)) {\n      return data.buffer;\n    }\n    if (utils.isURLSearchParams(data)) {\n      setContentTypeIfUnset(headers, 'application/x-www-form-urlencoded;charset=utf-8');\n      return data.toString();\n    }\n    if (utils.isObject(data)) {\n      setContentTypeIfUnset(headers, 'application/json;charset=utf-8');\n      return JSON.stringify(data);\n    }\n    return data;\n  }],\n\n  transformResponse: [function transformResponse(data) {\n    /*eslint no-param-reassign:0*/\n    if (typeof data === 'string') {\n      try {\n        data = JSON.parse(data);\n      } catch (e) { /* Ignore */ }\n    }\n    return data;\n  }],\n\n  /**\n   * A timeout in milliseconds to abort a request. If set to 0 (default) a\n   * timeout is not created.\n   */\n  timeout: 0,\n\n  xsrfCookieName: 'XSRF-TOKEN',\n  xsrfHeaderName: 'X-XSRF-TOKEN',\n\n  maxContentLength: -1,\n  maxBodyLength: -1,\n\n  validateStatus: function validateStatus(status) {\n    return status >= 200 && status < 300;\n  }\n};\n\ndefaults.headers = {\n  common: {\n    'Accept': 'application/json, text/plain, */*'\n  }\n};\n\nutils.forEach(['delete', 'get', 'head'], function forEachMethodNoData(method) {\n  defaults.headers[method] = {};\n});\n\nutils.forEach(['post', 'put', 'patch'], function forEachMethodWithData(method) {\n  defaults.headers[method] = utils.merge(DEFAULT_CONTENT_TYPE);\n});\n\nmodule.exports = defaults;\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _DashJSError=require('./../vo/DashJSError');var _DashJSError2=_interopRequireDefault(_DashJSError);var _HTTPRequest=require('./../vo/metrics/HTTPRequest');var _EventBus=require('./../../core/EventBus');var _EventBus2=_interopRequireDefault(_EventBus);var _Events=require('./../../core/events/Events');var _Events2=_interopRequireDefault(_Events);var _Errors=require('./../../core/errors/Errors');var _Errors2=_interopRequireDefault(_Errors);var _FactoryMaker=require('../../core/FactoryMaker');var _FactoryMaker2=_interopRequireDefault(_FactoryMaker);var _Debug=require('../../core/Debug');var _Debug2=_interopRequireDefault(_Debug);var _URLUtils=require('../utils/URLUtils');var _URLUtils2=_interopRequireDefault(_URLUtils);function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n */var HTTP_TIMEOUT_MS=5000;function TimeSyncController(){var context=this.context;var eventBus=(0,_EventBus2.default)(context).getInstance();var urlUtils=(0,_URLUtils2.default)(context).getInstance();var instance=void 0,logger=void 0,offsetToDeviceTimeMs=void 0,isSynchronizing=void 0,useManifestDateHeaderTimeSource=void 0,handlers=void 0,dashMetrics=void 0,baseURLController=void 0;function setup(){logger=(0,_Debug2.default)(context).getInstance().getLogger(instance);}function initialize(timingSources,useManifestDateHeader){useManifestDateHeaderTimeSource=useManifestDateHeader;offsetToDeviceTimeMs=0;isSynchronizing=false;// a list of known schemeIdUris and a method to call with @value\nhandlers={'urn:mpeg:dash:utc:http-head:2014':httpHeadHandler,'urn:mpeg:dash:utc:http-xsdate:2014':httpHandler.bind(null,xsdatetimeDecoder),'urn:mpeg:dash:utc:http-iso:2014':httpHandler.bind(null,iso8601Decoder),'urn:mpeg:dash:utc:direct:2014':directHandler,// some specs referencing early ISO23009-1 drafts incorrectly use\n// 2012 in the URI, rather than 2014. support these for now.\n'urn:mpeg:dash:utc:http-head:2012':httpHeadHandler,'urn:mpeg:dash:utc:http-xsdate:2012':httpHandler.bind(null,xsdatetimeDecoder),'urn:mpeg:dash:utc:http-iso:2012':httpHandler.bind(null,iso8601Decoder),'urn:mpeg:dash:utc:direct:2012':directHandler,// it isn't clear how the data returned would be formatted, and\n// no public examples available so http-ntp not supported for now.\n// presumably you would do an arraybuffer type xhr and decode the\n// binary data returned but I would want to see a sample first.\n'urn:mpeg:dash:utc:http-ntp:2014':notSupportedHandler,// not clear how this would be supported in javascript (in browser)\n'urn:mpeg:dash:utc:ntp:2014':notSupportedHandler,'urn:mpeg:dash:utc:sntp:2014':notSupportedHandler};if(!getIsSynchronizing()){attemptSync(timingSources);}}function setConfig(config){if(!config)return;if(config.dashMetrics){dashMetrics=config.dashMetrics;}if(config.baseURLController){baseURLController=config.baseURLController;}}function getOffsetToDeviceTimeMs(){return getOffsetMs();}function setIsSynchronizing(value){isSynchronizing=value;}function getIsSynchronizing(){return isSynchronizing;}function setOffsetMs(value){offsetToDeviceTimeMs=value;}function getOffsetMs(){return offsetToDeviceTimeMs;}// takes xsdatetime and returns milliseconds since UNIX epoch\n// may not be necessary as xsdatetime is very similar to ISO 8601\n// which is natively understood by javascript Date parser\nfunction alternateXsdatetimeDecoder(xsdatetimeStr){// taken from DashParser - should probably refactor both uses\nvar SECONDS_IN_MIN=60;var MINUTES_IN_HOUR=60;var MILLISECONDS_IN_SECONDS=1000;var datetimeRegex=/^([0-9]{4})-([0-9]{2})-([0-9]{2})T([0-9]{2}):([0-9]{2})(?::([0-9]*)(\\.[0-9]*)?)?(?:([+\\-])([0-9]{2})([0-9]{2}))?/;var utcDate=void 0,timezoneOffset=void 0;var match=datetimeRegex.exec(xsdatetimeStr);// If the string does not contain a timezone offset different browsers can interpret it either\n// as UTC or as a local time so we have to parse the string manually to normalize the given date value for\n// all browsers\nutcDate=Date.UTC(parseInt(match[1],10),parseInt(match[2],10)-1,// months start from zero\nparseInt(match[3],10),parseInt(match[4],10),parseInt(match[5],10),match[6]&&(parseInt(match[6],10)||0),match[7]&&parseFloat(match[7])*MILLISECONDS_IN_SECONDS||0);// If the date has timezone offset take it into account as well\nif(match[9]&&match[10]){timezoneOffset=parseInt(match[9],10)*MINUTES_IN_HOUR+parseInt(match[10],10);utcDate+=(match[8]==='+'?-1:+1)*timezoneOffset*SECONDS_IN_MIN*MILLISECONDS_IN_SECONDS;}return new Date(utcDate).getTime();}// try to use the built in parser, since xsdate is a constrained ISO8601\n// which is supported natively by Date.parse. if that fails, try a\n// regex-based version used elsewhere in this application.\nfunction xsdatetimeDecoder(xsdatetimeStr){var parsedDate=Date.parse(xsdatetimeStr);if(isNaN(parsedDate)){parsedDate=alternateXsdatetimeDecoder(xsdatetimeStr);}return parsedDate;}// takes ISO 8601 timestamp and returns milliseconds since UNIX epoch\nfunction iso8601Decoder(isoStr){return Date.parse(isoStr);}// takes RFC 1123 timestamp (which is same as ISO8601) and returns\n// milliseconds since UNIX epoch\nfunction rfc1123Decoder(dateStr){return Date.parse(dateStr);}function notSupportedHandler(url,onSuccessCB,onFailureCB){onFailureCB();}function directHandler(xsdatetimeStr,onSuccessCB,onFailureCB){var time=xsdatetimeDecoder(xsdatetimeStr);if(!isNaN(time)){onSuccessCB(time);return;}onFailureCB();}function httpHandler(decoder,url,onSuccessCB,onFailureCB,isHeadRequest){var oncomplete=void 0,onload=void 0;var complete=false;var req=new XMLHttpRequest();var verb=isHeadRequest?_HTTPRequest.HTTPRequest.HEAD:_HTTPRequest.HTTPRequest.GET;var urls=url.match(/\\S+/g);// according to ISO 23009-1, url could be a white-space\n// separated list of URLs. just handle one at a time.\nurl=urls.shift();oncomplete=function oncomplete(){if(complete){return;}// we only want to pass through here once per xhr,\n// regardless of whether the load was successful.\ncomplete=true;// if there are more urls to try, call self.\nif(urls.length){httpHandler(decoder,urls.join(' '),onSuccessCB,onFailureCB,isHeadRequest);}else{onFailureCB();}};onload=function onload(){var time=void 0,result=void 0;if(req.status===200){time=isHeadRequest?req.getResponseHeader('Date'):req.response;result=decoder(time);// decoder returns NaN if non-standard input\nif(!isNaN(result)){onSuccessCB(result);complete=true;}}};if(urlUtils.isRelative(url)){// passing no path to resolve will return just MPD BaseURL/baseUri\nvar baseUrl=baseURLController.resolve();if(baseUrl){url=urlUtils.resolve(url,baseUrl.url);}}req.open(verb,url);req.timeout=HTTP_TIMEOUT_MS||0;req.onload=onload;req.onloadend=oncomplete;req.send();}function httpHeadHandler(url,onSuccessCB,onFailureCB){httpHandler(rfc1123Decoder,url,onSuccessCB,onFailureCB,true);}function checkForDateHeader(){var dateHeaderValue=dashMetrics.getLatestMPDRequestHeaderValueByID('Date');var dateHeaderTime=dateHeaderValue!==null?new Date(dateHeaderValue).getTime():Number.NaN;if(!isNaN(dateHeaderTime)){setOffsetMs(dateHeaderTime-new Date().getTime());completeTimeSyncSequence(false,dateHeaderTime/1000,offsetToDeviceTimeMs);}else{completeTimeSyncSequence(true);}}function completeTimeSyncSequence(failed,time,offset){setIsSynchronizing(false);eventBus.trigger(_Events2.default.TIME_SYNCHRONIZATION_COMPLETED,{time:time,offset:offset,error:failed?new _DashJSError2.default(_Errors2.default.TIME_SYNC_FAILED_ERROR_CODE,_Errors2.default.TIME_SYNC_FAILED_ERROR_MESSAGE):null});}function calculateTimeOffset(serverTime,deviceTime){return serverTime-deviceTime;}function attemptSync(sources,sourceIndex){// if called with no sourceIndex, use zero (highest priority)\nvar index=sourceIndex||0;// the sources should be ordered in priority from the manifest.\n// try each in turn, from the top, until either something\n// sensible happens, or we run out of sources to try.\nvar source=sources[index];// callback to emit event to listeners\nvar onComplete=function onComplete(time,offset){var failed=!time||!offset;if(failed&&useManifestDateHeaderTimeSource){//Before falling back to binary search , check if date header exists on MPD. if so, use for a time source.\ncheckForDateHeader();}else{completeTimeSyncSequence(failed,time,offset);}};setIsSynchronizing(true);if(source){// check if there is a handler for this @schemeIdUri\nif(handlers.hasOwnProperty(source.schemeIdUri)){// if so, call it with its @value\nhandlers[source.schemeIdUri](source.value,function(serverTime){// the timing source returned something useful\nvar deviceTime=new Date().getTime();var offset=calculateTimeOffset(serverTime,deviceTime);setOffsetMs(offset);logger.info('Local time: '+new Date(deviceTime));logger.info('Server time: '+new Date(serverTime));logger.info('Server Time - Local Time (ms): '+offset);onComplete(serverTime,offset);},function(){// the timing source was probably uncontactable\n// or returned something we can't use - try again\n// with the remaining sources\nattemptSync(sources,index+1);});}else{// an unknown schemeIdUri must have been found\n// try again with the remaining sources\nattemptSync(sources,index+1);}}else{// no valid time source could be found, just use device time\nsetOffsetMs(0);onComplete();}}function reset(){setIsSynchronizing(false);}instance={initialize:initialize,getOffsetToDeviceTimeMs:getOffsetToDeviceTimeMs,setConfig:setConfig,reset:reset};setup();return instance;}TimeSyncController.__dashjs_factory_name='TimeSyncController';var factory=_FactoryMaker2.default.getSingletonFactory(TimeSyncController);factory.HTTP_TIMEOUT_MS=HTTP_TIMEOUT_MS;_FactoryMaker2.default.updateSingletonFactory(TimeSyncController.__dashjs_factory_name,factory);exports.default=factory;\n//# sourceMappingURL=TimeSyncController.js.map\n","'use strict';\nvar redefine = require('../internals/redefine');\nvar anObject = require('../internals/an-object');\nvar fails = require('../internals/fails');\nvar flags = require('../internals/regexp-flags');\n\nvar TO_STRING = 'toString';\nvar RegExpPrototype = RegExp.prototype;\nvar nativeToString = RegExpPrototype[TO_STRING];\n\nvar NOT_GENERIC = fails(function () { return nativeToString.call({ source: 'a', flags: 'b' }) != '/a/b'; });\n// FF44- RegExp#toString has a wrong name\nvar INCORRECT_NAME = nativeToString.name != TO_STRING;\n\n// `RegExp.prototype.toString` method\n// https://tc39.github.io/ecma262/#sec-regexp.prototype.tostring\nif (NOT_GENERIC || INCORRECT_NAME) {\n  redefine(RegExp.prototype, TO_STRING, function toString() {\n    var R = anObject(this);\n    var p = String(R.source);\n    var rf = R.flags;\n    var f = String(rf === undefined && R instanceof RegExp && !('flags' in RegExpPrototype) ? flags.call(R) : rf);\n    return '/' + p + '/' + f;\n  }, { unsafe: true });\n}\n","'use strict';\nvar getBuiltIn = require('../internals/get-built-in');\nvar definePropertyModule = require('../internals/object-define-property');\nvar wellKnownSymbol = require('../internals/well-known-symbol');\nvar DESCRIPTORS = require('../internals/descriptors');\n\nvar SPECIES = wellKnownSymbol('species');\n\nmodule.exports = function (CONSTRUCTOR_NAME) {\n  var Constructor = getBuiltIn(CONSTRUCTOR_NAME);\n  var defineProperty = definePropertyModule.f;\n\n  if (DESCRIPTORS && Constructor && !Constructor[SPECIES]) {\n    defineProperty(Constructor, SPECIES, {\n      configurable: true,\n      get: function () { return this; }\n    });\n  }\n};\n","// Copyright Joyent, Inc. and other Node contributors.\n//\n// Permission is hereby granted, free of charge, to any person obtaining a\n// copy of this software and associated documentation files (the\n// \"Software\"), to deal in the Software without restriction, including\n// without limitation the rights to use, copy, modify, merge, publish,\n// distribute, sublicense, and/or sell copies of the Software, and to permit\n// persons to whom the Software is furnished to do so, subject to the\n// following conditions:\n//\n// The above copyright notice and this permission notice shall be included\n// in all copies or substantial portions of the Software.\n//\n// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS\n// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF\n// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN\n// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,\n// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR\n// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE\n// USE OR OTHER DEALINGS IN THE SOFTWARE.\n\n// a transform stream is a readable/writable stream where you do\n// something with the data.  Sometimes it's called a \"filter\",\n// but that's not a great name for it, since that implies a thing where\n// some bits pass through, and others are simply ignored.  (That would\n// be a valid example of a transform, of course.)\n//\n// While the output is causally related to the input, it's not a\n// necessarily symmetric or synchronous transformation.  For example,\n// a zlib stream might take multiple plain-text writes(), and then\n// emit a single compressed chunk some time in the future.\n//\n// Here's how this works:\n//\n// The Transform stream has all the aspects of the readable and writable\n// stream classes.  When you write(chunk), that calls _write(chunk,cb)\n// internally, and returns false if there's a lot of pending writes\n// buffered up.  When you call read(), that calls _read(n) until\n// there's enough pending readable data buffered up.\n//\n// In a transform stream, the written data is placed in a buffer.  When\n// _read(n) is called, it transforms the queued up data, calling the\n// buffered _write cb's as it consumes chunks.  If consuming a single\n// written chunk would result in multiple output chunks, then the first\n// outputted bit calls the readcb, and subsequent chunks just go into\n// the read buffer, and will cause it to emit 'readable' if necessary.\n//\n// This way, back-pressure is actually determined by the reading side,\n// since _read has to be called to start processing a new chunk.  However,\n// a pathological inflate type of transform can cause excessive buffering\n// here.  For example, imagine a stream where every byte of input is\n// interpreted as an integer from 0-255, and then results in that many\n// bytes of output.  Writing the 4 bytes {ff,ff,ff,ff} would result in\n// 1kb of data being output.  In this case, you could write a very small\n// amount of input, and end up with a very large amount of output.  In\n// such a pathological inflating mechanism, there'd be no way to tell\n// the system to stop doing the transform.  A single 4MB write could\n// cause the system to run out of memory.\n//\n// However, even in such a pathological case, only a single written chunk\n// would be consumed, and then the rest would wait (un-transformed) until\n// the results of the previous transformed chunk were consumed.\n\n'use strict';\n\nmodule.exports = Transform;\n\nvar Duplex = require('./_stream_duplex');\n\n/*<replacement>*/\nvar util = Object.create(require('core-util-is'));\nutil.inherits = require('inherits');\n/*</replacement>*/\n\nutil.inherits(Transform, Duplex);\n\nfunction afterTransform(er, data) {\n  var ts = this._transformState;\n  ts.transforming = false;\n\n  var cb = ts.writecb;\n\n  if (!cb) {\n    return this.emit('error', new Error('write callback called multiple times'));\n  }\n\n  ts.writechunk = null;\n  ts.writecb = null;\n\n  if (data != null) // single equals check for both `null` and `undefined`\n    this.push(data);\n\n  cb(er);\n\n  var rs = this._readableState;\n  rs.reading = false;\n  if (rs.needReadable || rs.length < rs.highWaterMark) {\n    this._read(rs.highWaterMark);\n  }\n}\n\nfunction Transform(options) {\n  if (!(this instanceof Transform)) return new Transform(options);\n\n  Duplex.call(this, options);\n\n  this._transformState = {\n    afterTransform: afterTransform.bind(this),\n    needTransform: false,\n    transforming: false,\n    writecb: null,\n    writechunk: null,\n    writeencoding: null\n  };\n\n  // start out asking for a readable event once data is transformed.\n  this._readableState.needReadable = true;\n\n  // we have implemented the _read method, and done the other things\n  // that Readable wants before the first _read call, so unset the\n  // sync guard flag.\n  this._readableState.sync = false;\n\n  if (options) {\n    if (typeof options.transform === 'function') this._transform = options.transform;\n\n    if (typeof options.flush === 'function') this._flush = options.flush;\n  }\n\n  // When the writable side finishes, then flush out anything remaining.\n  this.on('prefinish', prefinish);\n}\n\nfunction prefinish() {\n  var _this = this;\n\n  if (typeof this._flush === 'function') {\n    this._flush(function (er, data) {\n      done(_this, er, data);\n    });\n  } else {\n    done(this, null, null);\n  }\n}\n\nTransform.prototype.push = function (chunk, encoding) {\n  this._transformState.needTransform = false;\n  return Duplex.prototype.push.call(this, chunk, encoding);\n};\n\n// This is the part where you do stuff!\n// override this function in implementation classes.\n// 'chunk' is an input chunk.\n//\n// Call `push(newChunk)` to pass along transformed output\n// to the readable side.  You may call 'push' zero or more times.\n//\n// Call `cb(err)` when you are done with this chunk.  If you pass\n// an error, then that'll put the hurt on the whole operation.  If you\n// never call cb(), then you'll never get another chunk.\nTransform.prototype._transform = function (chunk, encoding, cb) {\n  throw new Error('_transform() is not implemented');\n};\n\nTransform.prototype._write = function (chunk, encoding, cb) {\n  var ts = this._transformState;\n  ts.writecb = cb;\n  ts.writechunk = chunk;\n  ts.writeencoding = encoding;\n  if (!ts.transforming) {\n    var rs = this._readableState;\n    if (ts.needTransform || rs.needReadable || rs.length < rs.highWaterMark) this._read(rs.highWaterMark);\n  }\n};\n\n// Doesn't matter what the args are here.\n// _transform does all the work.\n// That we got here means that the readable side wants more data.\nTransform.prototype._read = function (n) {\n  var ts = this._transformState;\n\n  if (ts.writechunk !== null && ts.writecb && !ts.transforming) {\n    ts.transforming = true;\n    this._transform(ts.writechunk, ts.writeencoding, ts.afterTransform);\n  } else {\n    // mark that we need a transform, so that any data that comes in\n    // will get processed, now that we've asked for it.\n    ts.needTransform = true;\n  }\n};\n\nTransform.prototype._destroy = function (err, cb) {\n  var _this2 = this;\n\n  Duplex.prototype._destroy.call(this, err, function (err2) {\n    cb(err2);\n    _this2.emit('close');\n  });\n};\n\nfunction done(stream, er, data) {\n  if (er) return stream.emit('error', er);\n\n  if (data != null) // single equals check for both `null` and `undefined`\n    stream.push(data);\n\n  // if there's nothing in the write buffer, then that means\n  // that nothing more will ever be provided\n  if (stream._writableState.length) throw new Error('Calling transform done when ws.length != 0');\n\n  if (stream._transformState.transforming) throw new Error('Calling transform done when still transforming');\n\n  return stream.push(null);\n}","/* globals __VUE_SSR_CONTEXT__ */\n\n// IMPORTANT: Do NOT use ES2015 features in this file (except for modules).\n// This module is a runtime utility for cleaner component module output and will\n// be included in the final webpack user bundle.\n\nexport default function normalizeComponent (\n  scriptExports,\n  render,\n  staticRenderFns,\n  functionalTemplate,\n  injectStyles,\n  scopeId,\n  moduleIdentifier, /* server only */\n  shadowMode /* vue-cli only */\n) {\n  // Vue.extend constructor export interop\n  var options = typeof scriptExports === 'function'\n    ? scriptExports.options\n    : scriptExports\n\n  // render functions\n  if (render) {\n    options.render = render\n    options.staticRenderFns = staticRenderFns\n    options._compiled = true\n  }\n\n  // functional template\n  if (functionalTemplate) {\n    options.functional = true\n  }\n\n  // scopedId\n  if (scopeId) {\n    options._scopeId = 'data-v-' + scopeId\n  }\n\n  var hook\n  if (moduleIdentifier) { // server build\n    hook = function (context) {\n      // 2.3 injection\n      context =\n        context || // cached call\n        (this.$vnode && this.$vnode.ssrContext) || // stateful\n        (this.parent && this.parent.$vnode && this.parent.$vnode.ssrContext) // functional\n      // 2.2 with runInNewContext: true\n      if (!context && typeof __VUE_SSR_CONTEXT__ !== 'undefined') {\n        context = __VUE_SSR_CONTEXT__\n      }\n      // inject component styles\n      if (injectStyles) {\n        injectStyles.call(this, context)\n      }\n      // register component module identifier for async chunk inferrence\n      if (context && context._registeredComponents) {\n        context._registeredComponents.add(moduleIdentifier)\n      }\n    }\n    // used by ssr in case component is cached and beforeCreate\n    // never gets called\n    options._ssrRegister = hook\n  } else if (injectStyles) {\n    hook = shadowMode\n      ? function () {\n        injectStyles.call(\n          this,\n          (options.functional ? this.parent : this).$root.$options.shadowRoot\n        )\n      }\n      : injectStyles\n  }\n\n  if (hook) {\n    if (options.functional) {\n      // for template-only hot-reload because in that case the render fn doesn't\n      // go through the normalizer\n      options._injectStyles = hook\n      // register for functional component in vue file\n      var originalRender = options.render\n      options.render = function renderWithStyleInjection (h, context) {\n        hook.call(context)\n        return originalRender(h, context)\n      }\n    } else {\n      // inject component registration as beforeCreate hook\n      var existing = options.beforeCreate\n      options.beforeCreate = existing\n        ? [].concat(existing, hook)\n        : [hook]\n    }\n  }\n\n  return {\n    exports: scriptExports,\n    options: options\n  }\n}\n","function _isNativeReflectConstruct() {\n  if (typeof Reflect === \"undefined\" || !Reflect.construct) return false;\n  if (Reflect.construct.sham) return false;\n  if (typeof Proxy === \"function\") return true;\n\n  try {\n    Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function () {}));\n    return true;\n  } catch (e) {\n    return false;\n  }\n}\n\nmodule.exports = _isNativeReflectConstruct;\nmodule.exports[\"default\"] = module.exports, module.exports.__esModule = true;","var setPrototypeOf = require(\"./setPrototypeOf.js\");\n\nvar isNativeReflectConstruct = require(\"./isNativeReflectConstruct.js\");\n\nfunction _construct(Parent, args, Class) {\n  if (isNativeReflectConstruct()) {\n    module.exports = _construct = Reflect.construct;\n    module.exports[\"default\"] = module.exports, module.exports.__esModule = true;\n  } else {\n    module.exports = _construct = function _construct(Parent, args, Class) {\n      var a = [null];\n      a.push.apply(a, args);\n      var Constructor = Function.bind.apply(Parent, a);\n      var instance = new Constructor();\n      if (Class) setPrototypeOf(instance, Class.prototype);\n      return instance;\n    };\n\n    module.exports[\"default\"] = module.exports, module.exports.__esModule = true;\n  }\n\n  return _construct.apply(null, arguments);\n}\n\nmodule.exports = _construct;\nmodule.exports[\"default\"] = module.exports, module.exports.__esModule = true;","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _KeyPair=require('../vo/KeyPair');var _KeyPair2=_interopRequireDefault(_KeyPair);var _ClearKeyKeySet=require('../vo/ClearKeyKeySet');var _ClearKeyKeySet2=_interopRequireDefault(_ClearKeyKeySet);function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n *//**\n * CableLabs ClearKey license server implementation\n *\n * For testing purposes and evaluating potential uses for ClearKey, we have developed\n * a dirt-simple API for requesting ClearKey licenses from a remote server.\n *\n * @implements LicenseServer\n * @class\n */function ClearKey(){var instance=void 0;function getServerURLFromMessage(url,message/*, messageType*/){// Build ClearKey server query string\nvar jsonMsg=JSON.parse(String.fromCharCode.apply(null,new Uint8Array(message)));url+='/?';for(var i=0;i<jsonMsg.kids.length;i++){url+=jsonMsg.kids[i]+'&';}url=url.substring(0,url.length-1);return url;}function getHTTPMethod()/*messageType*/{return'GET';}function getResponseType()/*keySystemStr*/{return'json';}function getLicenseMessage(serverResponse/*, keySystemStr, messageType*/){if(!serverResponse.hasOwnProperty('keys')){return null;}var keyPairs=[];for(var i=0;i<serverResponse.keys.length;i++){var keypair=serverResponse.keys[i];var keyid=keypair.kid.replace(/=/g,'');var key=keypair.k.replace(/=/g,'');keyPairs.push(new _KeyPair2.default(keyid,key));}return new _ClearKeyKeySet2.default(keyPairs);}function getErrorResponse(serverResponse/*, keySystemStr, messageType*/){return String.fromCharCode.apply(null,new Uint8Array(serverResponse));}instance={getServerURLFromMessage:getServerURLFromMessage,getHTTPMethod:getHTTPMethod,getResponseType:getResponseType,getLicenseMessage:getLicenseMessage,getErrorResponse:getErrorResponse};return instance;}ClearKey.__dashjs_factory_name='ClearKey';exports.default=dashjs.FactoryMaker.getSingletonFactory(ClearKey);/* jshint ignore:line */\n//# sourceMappingURL=ClearKey.js.map\n","/*!\n * Vue.js v2.6.11\n * (c) 2014-2019 Evan You\n * Released under the MIT License.\n */\n/*  */\n\nvar emptyObject = Object.freeze({});\n\n// These helpers produce better VM code in JS engines due to their\n// explicitness and function inlining.\nfunction isUndef (v) {\n  return v === undefined || v === null\n}\n\nfunction isDef (v) {\n  return v !== undefined && v !== null\n}\n\nfunction isTrue (v) {\n  return v === true\n}\n\nfunction isFalse (v) {\n  return v === false\n}\n\n/**\n * Check if value is primitive.\n */\nfunction isPrimitive (value) {\n  return (\n    typeof value === 'string' ||\n    typeof value === 'number' ||\n    // $flow-disable-line\n    typeof value === 'symbol' ||\n    typeof value === 'boolean'\n  )\n}\n\n/**\n * Quick object check - this is primarily used to tell\n * Objects from primitive values when we know the value\n * is a JSON-compliant type.\n */\nfunction isObject (obj) {\n  return obj !== null && typeof obj === 'object'\n}\n\n/**\n * Get the raw type string of a value, e.g., [object Object].\n */\nvar _toString = Object.prototype.toString;\n\nfunction toRawType (value) {\n  return _toString.call(value).slice(8, -1)\n}\n\n/**\n * Strict object type check. Only returns true\n * for plain JavaScript objects.\n */\nfunction isPlainObject (obj) {\n  return _toString.call(obj) === '[object Object]'\n}\n\nfunction isRegExp (v) {\n  return _toString.call(v) === '[object RegExp]'\n}\n\n/**\n * Check if val is a valid array index.\n */\nfunction isValidArrayIndex (val) {\n  var n = parseFloat(String(val));\n  return n >= 0 && Math.floor(n) === n && isFinite(val)\n}\n\nfunction isPromise (val) {\n  return (\n    isDef(val) &&\n    typeof val.then === 'function' &&\n    typeof val.catch === 'function'\n  )\n}\n\n/**\n * Convert a value to a string that is actually rendered.\n */\nfunction toString (val) {\n  return val == null\n    ? ''\n    : Array.isArray(val) || (isPlainObject(val) && val.toString === _toString)\n      ? JSON.stringify(val, null, 2)\n      : String(val)\n}\n\n/**\n * Convert an input value to a number for persistence.\n * If the conversion fails, return original string.\n */\nfunction toNumber (val) {\n  var n = parseFloat(val);\n  return isNaN(n) ? val : n\n}\n\n/**\n * Make a map and return a function for checking if a key\n * is in that map.\n */\nfunction makeMap (\n  str,\n  expectsLowerCase\n) {\n  var map = Object.create(null);\n  var list = str.split(',');\n  for (var i = 0; i < list.length; i++) {\n    map[list[i]] = true;\n  }\n  return expectsLowerCase\n    ? function (val) { return map[val.toLowerCase()]; }\n    : function (val) { return map[val]; }\n}\n\n/**\n * Check if a tag is a built-in tag.\n */\nvar isBuiltInTag = makeMap('slot,component', true);\n\n/**\n * Check if an attribute is a reserved attribute.\n */\nvar isReservedAttribute = makeMap('key,ref,slot,slot-scope,is');\n\n/**\n * Remove an item from an array.\n */\nfunction remove (arr, item) {\n  if (arr.length) {\n    var index = arr.indexOf(item);\n    if (index > -1) {\n      return arr.splice(index, 1)\n    }\n  }\n}\n\n/**\n * Check whether an object has the property.\n */\nvar hasOwnProperty = Object.prototype.hasOwnProperty;\nfunction hasOwn (obj, key) {\n  return hasOwnProperty.call(obj, key)\n}\n\n/**\n * Create a cached version of a pure function.\n */\nfunction cached (fn) {\n  var cache = Object.create(null);\n  return (function cachedFn (str) {\n    var hit = cache[str];\n    return hit || (cache[str] = fn(str))\n  })\n}\n\n/**\n * Camelize a hyphen-delimited string.\n */\nvar camelizeRE = /-(\\w)/g;\nvar camelize = cached(function (str) {\n  return str.replace(camelizeRE, function (_, c) { return c ? c.toUpperCase() : ''; })\n});\n\n/**\n * Capitalize a string.\n */\nvar capitalize = cached(function (str) {\n  return str.charAt(0).toUpperCase() + str.slice(1)\n});\n\n/**\n * Hyphenate a camelCase string.\n */\nvar hyphenateRE = /\\B([A-Z])/g;\nvar hyphenate = cached(function (str) {\n  return str.replace(hyphenateRE, '-$1').toLowerCase()\n});\n\n/**\n * Simple bind polyfill for environments that do not support it,\n * e.g., PhantomJS 1.x. Technically, we don't need this anymore\n * since native bind is now performant enough in most browsers.\n * But removing it would mean breaking code that was able to run in\n * PhantomJS 1.x, so this must be kept for backward compatibility.\n */\n\n/* istanbul ignore next */\nfunction polyfillBind (fn, ctx) {\n  function boundFn (a) {\n    var l = arguments.length;\n    return l\n      ? l > 1\n        ? fn.apply(ctx, arguments)\n        : fn.call(ctx, a)\n      : fn.call(ctx)\n  }\n\n  boundFn._length = fn.length;\n  return boundFn\n}\n\nfunction nativeBind (fn, ctx) {\n  return fn.bind(ctx)\n}\n\nvar bind = Function.prototype.bind\n  ? nativeBind\n  : polyfillBind;\n\n/**\n * Convert an Array-like object to a real Array.\n */\nfunction toArray (list, start) {\n  start = start || 0;\n  var i = list.length - start;\n  var ret = new Array(i);\n  while (i--) {\n    ret[i] = list[i + start];\n  }\n  return ret\n}\n\n/**\n * Mix properties into target object.\n */\nfunction extend (to, _from) {\n  for (var key in _from) {\n    to[key] = _from[key];\n  }\n  return to\n}\n\n/**\n * Merge an Array of Objects into a single Object.\n */\nfunction toObject (arr) {\n  var res = {};\n  for (var i = 0; i < arr.length; i++) {\n    if (arr[i]) {\n      extend(res, arr[i]);\n    }\n  }\n  return res\n}\n\n/* eslint-disable no-unused-vars */\n\n/**\n * Perform no operation.\n * Stubbing args to make Flow happy without leaving useless transpiled code\n * with ...rest (https://flow.org/blog/2017/05/07/Strict-Function-Call-Arity/).\n */\nfunction noop (a, b, c) {}\n\n/**\n * Always return false.\n */\nvar no = function (a, b, c) { return false; };\n\n/* eslint-enable no-unused-vars */\n\n/**\n * Return the same value.\n */\nvar identity = function (_) { return _; };\n\n/**\n * Check if two values are loosely equal - that is,\n * if they are plain objects, do they have the same shape?\n */\nfunction looseEqual (a, b) {\n  if (a === b) { return true }\n  var isObjectA = isObject(a);\n  var isObjectB = isObject(b);\n  if (isObjectA && isObjectB) {\n    try {\n      var isArrayA = Array.isArray(a);\n      var isArrayB = Array.isArray(b);\n      if (isArrayA && isArrayB) {\n        return a.length === b.length && a.every(function (e, i) {\n          return looseEqual(e, b[i])\n        })\n      } else if (a instanceof Date && b instanceof Date) {\n        return a.getTime() === b.getTime()\n      } else if (!isArrayA && !isArrayB) {\n        var keysA = Object.keys(a);\n        var keysB = Object.keys(b);\n        return keysA.length === keysB.length && keysA.every(function (key) {\n          return looseEqual(a[key], b[key])\n        })\n      } else {\n        /* istanbul ignore next */\n        return false\n      }\n    } catch (e) {\n      /* istanbul ignore next */\n      return false\n    }\n  } else if (!isObjectA && !isObjectB) {\n    return String(a) === String(b)\n  } else {\n    return false\n  }\n}\n\n/**\n * Return the first index at which a loosely equal value can be\n * found in the array (if value is a plain object, the array must\n * contain an object of the same shape), or -1 if it is not present.\n */\nfunction looseIndexOf (arr, val) {\n  for (var i = 0; i < arr.length; i++) {\n    if (looseEqual(arr[i], val)) { return i }\n  }\n  return -1\n}\n\n/**\n * Ensure a function is called only once.\n */\nfunction once (fn) {\n  var called = false;\n  return function () {\n    if (!called) {\n      called = true;\n      fn.apply(this, arguments);\n    }\n  }\n}\n\nvar SSR_ATTR = 'data-server-rendered';\n\nvar ASSET_TYPES = [\n  'component',\n  'directive',\n  'filter'\n];\n\nvar LIFECYCLE_HOOKS = [\n  'beforeCreate',\n  'created',\n  'beforeMount',\n  'mounted',\n  'beforeUpdate',\n  'updated',\n  'beforeDestroy',\n  'destroyed',\n  'activated',\n  'deactivated',\n  'errorCaptured',\n  'serverPrefetch'\n];\n\n/*  */\n\n\n\nvar config = ({\n  /**\n   * Option merge strategies (used in core/util/options)\n   */\n  // $flow-disable-line\n  optionMergeStrategies: Object.create(null),\n\n  /**\n   * Whether to suppress warnings.\n   */\n  silent: false,\n\n  /**\n   * Show production mode tip message on boot?\n   */\n  productionTip: process.env.NODE_ENV !== 'production',\n\n  /**\n   * Whether to enable devtools\n   */\n  devtools: process.env.NODE_ENV !== 'production',\n\n  /**\n   * Whether to record perf\n   */\n  performance: false,\n\n  /**\n   * Error handler for watcher errors\n   */\n  errorHandler: null,\n\n  /**\n   * Warn handler for watcher warns\n   */\n  warnHandler: null,\n\n  /**\n   * Ignore certain custom elements\n   */\n  ignoredElements: [],\n\n  /**\n   * Custom user key aliases for v-on\n   */\n  // $flow-disable-line\n  keyCodes: Object.create(null),\n\n  /**\n   * Check if a tag is reserved so that it cannot be registered as a\n   * component. This is platform-dependent and may be overwritten.\n   */\n  isReservedTag: no,\n\n  /**\n   * Check if an attribute is reserved so that it cannot be used as a component\n   * prop. This is platform-dependent and may be overwritten.\n   */\n  isReservedAttr: no,\n\n  /**\n   * Check if a tag is an unknown element.\n   * Platform-dependent.\n   */\n  isUnknownElement: no,\n\n  /**\n   * Get the namespace of an element\n   */\n  getTagNamespace: noop,\n\n  /**\n   * Parse the real tag name for the specific platform.\n   */\n  parsePlatformTagName: identity,\n\n  /**\n   * Check if an attribute must be bound using property, e.g. value\n   * Platform-dependent.\n   */\n  mustUseProp: no,\n\n  /**\n   * Perform updates asynchronously. Intended to be used by Vue Test Utils\n   * This will significantly reduce performance if set to false.\n   */\n  async: true,\n\n  /**\n   * Exposed for legacy reasons\n   */\n  _lifecycleHooks: LIFECYCLE_HOOKS\n});\n\n/*  */\n\n/**\n * unicode letters used for parsing html tags, component names and property paths.\n * using https://www.w3.org/TR/html53/semantics-scripting.html#potentialcustomelementname\n * skipping \\u10000-\\uEFFFF due to it freezing up PhantomJS\n */\nvar unicodeRegExp = /a-zA-Z\\u00B7\\u00C0-\\u00D6\\u00D8-\\u00F6\\u00F8-\\u037D\\u037F-\\u1FFF\\u200C-\\u200D\\u203F-\\u2040\\u2070-\\u218F\\u2C00-\\u2FEF\\u3001-\\uD7FF\\uF900-\\uFDCF\\uFDF0-\\uFFFD/;\n\n/**\n * Check if a string starts with $ or _\n */\nfunction isReserved (str) {\n  var c = (str + '').charCodeAt(0);\n  return c === 0x24 || c === 0x5F\n}\n\n/**\n * Define a property.\n */\nfunction def (obj, key, val, enumerable) {\n  Object.defineProperty(obj, key, {\n    value: val,\n    enumerable: !!enumerable,\n    writable: true,\n    configurable: true\n  });\n}\n\n/**\n * Parse simple path.\n */\nvar bailRE = new RegExp((\"[^\" + (unicodeRegExp.source) + \".$_\\\\d]\"));\nfunction parsePath (path) {\n  if (bailRE.test(path)) {\n    return\n  }\n  var segments = path.split('.');\n  return function (obj) {\n    for (var i = 0; i < segments.length; i++) {\n      if (!obj) { return }\n      obj = obj[segments[i]];\n    }\n    return obj\n  }\n}\n\n/*  */\n\n// can we use __proto__?\nvar hasProto = '__proto__' in {};\n\n// Browser environment sniffing\nvar inBrowser = typeof window !== 'undefined';\nvar inWeex = typeof WXEnvironment !== 'undefined' && !!WXEnvironment.platform;\nvar weexPlatform = inWeex && WXEnvironment.platform.toLowerCase();\nvar UA = inBrowser && window.navigator.userAgent.toLowerCase();\nvar isIE = UA && /msie|trident/.test(UA);\nvar isIE9 = UA && UA.indexOf('msie 9.0') > 0;\nvar isEdge = UA && UA.indexOf('edge/') > 0;\nvar isAndroid = (UA && UA.indexOf('android') > 0) || (weexPlatform === 'android');\nvar isIOS = (UA && /iphone|ipad|ipod|ios/.test(UA)) || (weexPlatform === 'ios');\nvar isChrome = UA && /chrome\\/\\d+/.test(UA) && !isEdge;\nvar isPhantomJS = UA && /phantomjs/.test(UA);\nvar isFF = UA && UA.match(/firefox\\/(\\d+)/);\n\n// Firefox has a \"watch\" function on Object.prototype...\nvar nativeWatch = ({}).watch;\n\nvar supportsPassive = false;\nif (inBrowser) {\n  try {\n    var opts = {};\n    Object.defineProperty(opts, 'passive', ({\n      get: function get () {\n        /* istanbul ignore next */\n        supportsPassive = true;\n      }\n    })); // https://github.com/facebook/flow/issues/285\n    window.addEventListener('test-passive', null, opts);\n  } catch (e) {}\n}\n\n// this needs to be lazy-evaled because vue may be required before\n// vue-server-renderer can set VUE_ENV\nvar _isServer;\nvar isServerRendering = function () {\n  if (_isServer === undefined) {\n    /* istanbul ignore if */\n    if (!inBrowser && !inWeex && typeof global !== 'undefined') {\n      // detect presence of vue-server-renderer and avoid\n      // Webpack shimming the process\n      _isServer = global['process'] && global['process'].env.VUE_ENV === 'server';\n    } else {\n      _isServer = false;\n    }\n  }\n  return _isServer\n};\n\n// detect devtools\nvar devtools = inBrowser && window.__VUE_DEVTOOLS_GLOBAL_HOOK__;\n\n/* istanbul ignore next */\nfunction isNative (Ctor) {\n  return typeof Ctor === 'function' && /native code/.test(Ctor.toString())\n}\n\nvar hasSymbol =\n  typeof Symbol !== 'undefined' && isNative(Symbol) &&\n  typeof Reflect !== 'undefined' && isNative(Reflect.ownKeys);\n\nvar _Set;\n/* istanbul ignore if */ // $flow-disable-line\nif (typeof Set !== 'undefined' && isNative(Set)) {\n  // use native Set when available.\n  _Set = Set;\n} else {\n  // a non-standard Set polyfill that only works with primitive keys.\n  _Set = /*@__PURE__*/(function () {\n    function Set () {\n      this.set = Object.create(null);\n    }\n    Set.prototype.has = function has (key) {\n      return this.set[key] === true\n    };\n    Set.prototype.add = function add (key) {\n      this.set[key] = true;\n    };\n    Set.prototype.clear = function clear () {\n      this.set = Object.create(null);\n    };\n\n    return Set;\n  }());\n}\n\n/*  */\n\nvar warn = noop;\nvar tip = noop;\nvar generateComponentTrace = (noop); // work around flow check\nvar formatComponentName = (noop);\n\nif (process.env.NODE_ENV !== 'production') {\n  var hasConsole = typeof console !== 'undefined';\n  var classifyRE = /(?:^|[-_])(\\w)/g;\n  var classify = function (str) { return str\n    .replace(classifyRE, function (c) { return c.toUpperCase(); })\n    .replace(/[-_]/g, ''); };\n\n  warn = function (msg, vm) {\n    var trace = vm ? generateComponentTrace(vm) : '';\n\n    if (config.warnHandler) {\n      config.warnHandler.call(null, msg, vm, trace);\n    } else if (hasConsole && (!config.silent)) {\n      console.error((\"[Vue warn]: \" + msg + trace));\n    }\n  };\n\n  tip = function (msg, vm) {\n    if (hasConsole && (!config.silent)) {\n      console.warn(\"[Vue tip]: \" + msg + (\n        vm ? generateComponentTrace(vm) : ''\n      ));\n    }\n  };\n\n  formatComponentName = function (vm, includeFile) {\n    if (vm.$root === vm) {\n      return '<Root>'\n    }\n    var options = typeof vm === 'function' && vm.cid != null\n      ? vm.options\n      : vm._isVue\n        ? vm.$options || vm.constructor.options\n        : vm;\n    var name = options.name || options._componentTag;\n    var file = options.__file;\n    if (!name && file) {\n      var match = file.match(/([^/\\\\]+)\\.vue$/);\n      name = match && match[1];\n    }\n\n    return (\n      (name ? (\"<\" + (classify(name)) + \">\") : \"<Anonymous>\") +\n      (file && includeFile !== false ? (\" at \" + file) : '')\n    )\n  };\n\n  var repeat = function (str, n) {\n    var res = '';\n    while (n) {\n      if (n % 2 === 1) { res += str; }\n      if (n > 1) { str += str; }\n      n >>= 1;\n    }\n    return res\n  };\n\n  generateComponentTrace = function (vm) {\n    if (vm._isVue && vm.$parent) {\n      var tree = [];\n      var currentRecursiveSequence = 0;\n      while (vm) {\n        if (tree.length > 0) {\n          var last = tree[tree.length - 1];\n          if (last.constructor === vm.constructor) {\n            currentRecursiveSequence++;\n            vm = vm.$parent;\n            continue\n          } else if (currentRecursiveSequence > 0) {\n            tree[tree.length - 1] = [last, currentRecursiveSequence];\n            currentRecursiveSequence = 0;\n          }\n        }\n        tree.push(vm);\n        vm = vm.$parent;\n      }\n      return '\\n\\nfound in\\n\\n' + tree\n        .map(function (vm, i) { return (\"\" + (i === 0 ? '---> ' : repeat(' ', 5 + i * 2)) + (Array.isArray(vm)\n            ? ((formatComponentName(vm[0])) + \"... (\" + (vm[1]) + \" recursive calls)\")\n            : formatComponentName(vm))); })\n        .join('\\n')\n    } else {\n      return (\"\\n\\n(found in \" + (formatComponentName(vm)) + \")\")\n    }\n  };\n}\n\n/*  */\n\nvar uid = 0;\n\n/**\n * A dep is an observable that can have multiple\n * directives subscribing to it.\n */\nvar Dep = function Dep () {\n  this.id = uid++;\n  this.subs = [];\n};\n\nDep.prototype.addSub = function addSub (sub) {\n  this.subs.push(sub);\n};\n\nDep.prototype.removeSub = function removeSub (sub) {\n  remove(this.subs, sub);\n};\n\nDep.prototype.depend = function depend () {\n  if (Dep.target) {\n    Dep.target.addDep(this);\n  }\n};\n\nDep.prototype.notify = function notify () {\n  // stabilize the subscriber list first\n  var subs = this.subs.slice();\n  if (process.env.NODE_ENV !== 'production' && !config.async) {\n    // subs aren't sorted in scheduler if not running async\n    // we need to sort them now to make sure they fire in correct\n    // order\n    subs.sort(function (a, b) { return a.id - b.id; });\n  }\n  for (var i = 0, l = subs.length; i < l; i++) {\n    subs[i].update();\n  }\n};\n\n// The current target watcher being evaluated.\n// This is globally unique because only one watcher\n// can be evaluated at a time.\nDep.target = null;\nvar targetStack = [];\n\nfunction pushTarget (target) {\n  targetStack.push(target);\n  Dep.target = target;\n}\n\nfunction popTarget () {\n  targetStack.pop();\n  Dep.target = targetStack[targetStack.length - 1];\n}\n\n/*  */\n\nvar VNode = function VNode (\n  tag,\n  data,\n  children,\n  text,\n  elm,\n  context,\n  componentOptions,\n  asyncFactory\n) {\n  this.tag = tag;\n  this.data = data;\n  this.children = children;\n  this.text = text;\n  this.elm = elm;\n  this.ns = undefined;\n  this.context = context;\n  this.fnContext = undefined;\n  this.fnOptions = undefined;\n  this.fnScopeId = undefined;\n  this.key = data && data.key;\n  this.componentOptions = componentOptions;\n  this.componentInstance = undefined;\n  this.parent = undefined;\n  this.raw = false;\n  this.isStatic = false;\n  this.isRootInsert = true;\n  this.isComment = false;\n  this.isCloned = false;\n  this.isOnce = false;\n  this.asyncFactory = asyncFactory;\n  this.asyncMeta = undefined;\n  this.isAsyncPlaceholder = false;\n};\n\nvar prototypeAccessors = { child: { configurable: true } };\n\n// DEPRECATED: alias for componentInstance for backwards compat.\n/* istanbul ignore next */\nprototypeAccessors.child.get = function () {\n  return this.componentInstance\n};\n\nObject.defineProperties( VNode.prototype, prototypeAccessors );\n\nvar createEmptyVNode = function (text) {\n  if ( text === void 0 ) text = '';\n\n  var node = new VNode();\n  node.text = text;\n  node.isComment = true;\n  return node\n};\n\nfunction createTextVNode (val) {\n  return new VNode(undefined, undefined, undefined, String(val))\n}\n\n// optimized shallow clone\n// used for static nodes and slot nodes because they may be reused across\n// multiple renders, cloning them avoids errors when DOM manipulations rely\n// on their elm reference.\nfunction cloneVNode (vnode) {\n  var cloned = new VNode(\n    vnode.tag,\n    vnode.data,\n    // #7975\n    // clone children array to avoid mutating original in case of cloning\n    // a child.\n    vnode.children && vnode.children.slice(),\n    vnode.text,\n    vnode.elm,\n    vnode.context,\n    vnode.componentOptions,\n    vnode.asyncFactory\n  );\n  cloned.ns = vnode.ns;\n  cloned.isStatic = vnode.isStatic;\n  cloned.key = vnode.key;\n  cloned.isComment = vnode.isComment;\n  cloned.fnContext = vnode.fnContext;\n  cloned.fnOptions = vnode.fnOptions;\n  cloned.fnScopeId = vnode.fnScopeId;\n  cloned.asyncMeta = vnode.asyncMeta;\n  cloned.isCloned = true;\n  return cloned\n}\n\n/*\n * not type checking this file because flow doesn't play well with\n * dynamically accessing methods on Array prototype\n */\n\nvar arrayProto = Array.prototype;\nvar arrayMethods = Object.create(arrayProto);\n\nvar methodsToPatch = [\n  'push',\n  'pop',\n  'shift',\n  'unshift',\n  'splice',\n  'sort',\n  'reverse'\n];\n\n/**\n * Intercept mutating methods and emit events\n */\nmethodsToPatch.forEach(function (method) {\n  // cache original method\n  var original = arrayProto[method];\n  def(arrayMethods, method, function mutator () {\n    var args = [], len = arguments.length;\n    while ( len-- ) args[ len ] = arguments[ len ];\n\n    var result = original.apply(this, args);\n    var ob = this.__ob__;\n    var inserted;\n    switch (method) {\n      case 'push':\n      case 'unshift':\n        inserted = args;\n        break\n      case 'splice':\n        inserted = args.slice(2);\n        break\n    }\n    if (inserted) { ob.observeArray(inserted); }\n    // notify change\n    ob.dep.notify();\n    return result\n  });\n});\n\n/*  */\n\nvar arrayKeys = Object.getOwnPropertyNames(arrayMethods);\n\n/**\n * In some cases we may want to disable observation inside a component's\n * update computation.\n */\nvar shouldObserve = true;\n\nfunction toggleObserving (value) {\n  shouldObserve = value;\n}\n\n/**\n * Observer class that is attached to each observed\n * object. Once attached, the observer converts the target\n * object's property keys into getter/setters that\n * collect dependencies and dispatch updates.\n */\nvar Observer = function Observer (value) {\n  this.value = value;\n  this.dep = new Dep();\n  this.vmCount = 0;\n  def(value, '__ob__', this);\n  if (Array.isArray(value)) {\n    if (hasProto) {\n      protoAugment(value, arrayMethods);\n    } else {\n      copyAugment(value, arrayMethods, arrayKeys);\n    }\n    this.observeArray(value);\n  } else {\n    this.walk(value);\n  }\n};\n\n/**\n * Walk through all properties and convert them into\n * getter/setters. This method should only be called when\n * value type is Object.\n */\nObserver.prototype.walk = function walk (obj) {\n  var keys = Object.keys(obj);\n  for (var i = 0; i < keys.length; i++) {\n    defineReactive$$1(obj, keys[i]);\n  }\n};\n\n/**\n * Observe a list of Array items.\n */\nObserver.prototype.observeArray = function observeArray (items) {\n  for (var i = 0, l = items.length; i < l; i++) {\n    observe(items[i]);\n  }\n};\n\n// helpers\n\n/**\n * Augment a target Object or Array by intercepting\n * the prototype chain using __proto__\n */\nfunction protoAugment (target, src) {\n  /* eslint-disable no-proto */\n  target.__proto__ = src;\n  /* eslint-enable no-proto */\n}\n\n/**\n * Augment a target Object or Array by defining\n * hidden properties.\n */\n/* istanbul ignore next */\nfunction copyAugment (target, src, keys) {\n  for (var i = 0, l = keys.length; i < l; i++) {\n    var key = keys[i];\n    def(target, key, src[key]);\n  }\n}\n\n/**\n * Attempt to create an observer instance for a value,\n * returns the new observer if successfully observed,\n * or the existing observer if the value already has one.\n */\nfunction observe (value, asRootData) {\n  if (!isObject(value) || value instanceof VNode) {\n    return\n  }\n  var ob;\n  if (hasOwn(value, '__ob__') && value.__ob__ instanceof Observer) {\n    ob = value.__ob__;\n  } else if (\n    shouldObserve &&\n    !isServerRendering() &&\n    (Array.isArray(value) || isPlainObject(value)) &&\n    Object.isExtensible(value) &&\n    !value._isVue\n  ) {\n    ob = new Observer(value);\n  }\n  if (asRootData && ob) {\n    ob.vmCount++;\n  }\n  return ob\n}\n\n/**\n * Define a reactive property on an Object.\n */\nfunction defineReactive$$1 (\n  obj,\n  key,\n  val,\n  customSetter,\n  shallow\n) {\n  var dep = new Dep();\n\n  var property = Object.getOwnPropertyDescriptor(obj, key);\n  if (property && property.configurable === false) {\n    return\n  }\n\n  // cater for pre-defined getter/setters\n  var getter = property && property.get;\n  var setter = property && property.set;\n  if ((!getter || setter) && arguments.length === 2) {\n    val = obj[key];\n  }\n\n  var childOb = !shallow && observe(val);\n  Object.defineProperty(obj, key, {\n    enumerable: true,\n    configurable: true,\n    get: function reactiveGetter () {\n      var value = getter ? getter.call(obj) : val;\n      if (Dep.target) {\n        dep.depend();\n        if (childOb) {\n          childOb.dep.depend();\n          if (Array.isArray(value)) {\n            dependArray(value);\n          }\n        }\n      }\n      return value\n    },\n    set: function reactiveSetter (newVal) {\n      var value = getter ? getter.call(obj) : val;\n      /* eslint-disable no-self-compare */\n      if (newVal === value || (newVal !== newVal && value !== value)) {\n        return\n      }\n      /* eslint-enable no-self-compare */\n      if (process.env.NODE_ENV !== 'production' && customSetter) {\n        customSetter();\n      }\n      // #7981: for accessor properties without setter\n      if (getter && !setter) { return }\n      if (setter) {\n        setter.call(obj, newVal);\n      } else {\n        val = newVal;\n      }\n      childOb = !shallow && observe(newVal);\n      dep.notify();\n    }\n  });\n}\n\n/**\n * Set a property on an object. Adds the new property and\n * triggers change notification if the property doesn't\n * already exist.\n */\nfunction set (target, key, val) {\n  if (process.env.NODE_ENV !== 'production' &&\n    (isUndef(target) || isPrimitive(target))\n  ) {\n    warn((\"Cannot set reactive property on undefined, null, or primitive value: \" + ((target))));\n  }\n  if (Array.isArray(target) && isValidArrayIndex(key)) {\n    target.length = Math.max(target.length, key);\n    target.splice(key, 1, val);\n    return val\n  }\n  if (key in target && !(key in Object.prototype)) {\n    target[key] = val;\n    return val\n  }\n  var ob = (target).__ob__;\n  if (target._isVue || (ob && ob.vmCount)) {\n    process.env.NODE_ENV !== 'production' && warn(\n      'Avoid adding reactive properties to a Vue instance or its root $data ' +\n      'at runtime - declare it upfront in the data option.'\n    );\n    return val\n  }\n  if (!ob) {\n    target[key] = val;\n    return val\n  }\n  defineReactive$$1(ob.value, key, val);\n  ob.dep.notify();\n  return val\n}\n\n/**\n * Delete a property and trigger change if necessary.\n */\nfunction del (target, key) {\n  if (process.env.NODE_ENV !== 'production' &&\n    (isUndef(target) || isPrimitive(target))\n  ) {\n    warn((\"Cannot delete reactive property on undefined, null, or primitive value: \" + ((target))));\n  }\n  if (Array.isArray(target) && isValidArrayIndex(key)) {\n    target.splice(key, 1);\n    return\n  }\n  var ob = (target).__ob__;\n  if (target._isVue || (ob && ob.vmCount)) {\n    process.env.NODE_ENV !== 'production' && warn(\n      'Avoid deleting properties on a Vue instance or its root $data ' +\n      '- just set it to null.'\n    );\n    return\n  }\n  if (!hasOwn(target, key)) {\n    return\n  }\n  delete target[key];\n  if (!ob) {\n    return\n  }\n  ob.dep.notify();\n}\n\n/**\n * Collect dependencies on array elements when the array is touched, since\n * we cannot intercept array element access like property getters.\n */\nfunction dependArray (value) {\n  for (var e = (void 0), i = 0, l = value.length; i < l; i++) {\n    e = value[i];\n    e && e.__ob__ && e.__ob__.dep.depend();\n    if (Array.isArray(e)) {\n      dependArray(e);\n    }\n  }\n}\n\n/*  */\n\n/**\n * Option overwriting strategies are functions that handle\n * how to merge a parent option value and a child option\n * value into the final value.\n */\nvar strats = config.optionMergeStrategies;\n\n/**\n * Options with restrictions\n */\nif (process.env.NODE_ENV !== 'production') {\n  strats.el = strats.propsData = function (parent, child, vm, key) {\n    if (!vm) {\n      warn(\n        \"option \\\"\" + key + \"\\\" can only be used during instance \" +\n        'creation with the `new` keyword.'\n      );\n    }\n    return defaultStrat(parent, child)\n  };\n}\n\n/**\n * Helper that recursively merges two data objects together.\n */\nfunction mergeData (to, from) {\n  if (!from) { return to }\n  var key, toVal, fromVal;\n\n  var keys = hasSymbol\n    ? Reflect.ownKeys(from)\n    : Object.keys(from);\n\n  for (var i = 0; i < keys.length; i++) {\n    key = keys[i];\n    // in case the object is already observed...\n    if (key === '__ob__') { continue }\n    toVal = to[key];\n    fromVal = from[key];\n    if (!hasOwn(to, key)) {\n      set(to, key, fromVal);\n    } else if (\n      toVal !== fromVal &&\n      isPlainObject(toVal) &&\n      isPlainObject(fromVal)\n    ) {\n      mergeData(toVal, fromVal);\n    }\n  }\n  return to\n}\n\n/**\n * Data\n */\nfunction mergeDataOrFn (\n  parentVal,\n  childVal,\n  vm\n) {\n  if (!vm) {\n    // in a Vue.extend merge, both should be functions\n    if (!childVal) {\n      return parentVal\n    }\n    if (!parentVal) {\n      return childVal\n    }\n    // when parentVal & childVal are both present,\n    // we need to return a function that returns the\n    // merged result of both functions... no need to\n    // check if parentVal is a function here because\n    // it has to be a function to pass previous merges.\n    return function mergedDataFn () {\n      return mergeData(\n        typeof childVal === 'function' ? childVal.call(this, this) : childVal,\n        typeof parentVal === 'function' ? parentVal.call(this, this) : parentVal\n      )\n    }\n  } else {\n    return function mergedInstanceDataFn () {\n      // instance merge\n      var instanceData = typeof childVal === 'function'\n        ? childVal.call(vm, vm)\n        : childVal;\n      var defaultData = typeof parentVal === 'function'\n        ? parentVal.call(vm, vm)\n        : parentVal;\n      if (instanceData) {\n        return mergeData(instanceData, defaultData)\n      } else {\n        return defaultData\n      }\n    }\n  }\n}\n\nstrats.data = function (\n  parentVal,\n  childVal,\n  vm\n) {\n  if (!vm) {\n    if (childVal && typeof childVal !== 'function') {\n      process.env.NODE_ENV !== 'production' && warn(\n        'The \"data\" option should be a function ' +\n        'that returns a per-instance value in component ' +\n        'definitions.',\n        vm\n      );\n\n      return parentVal\n    }\n    return mergeDataOrFn(parentVal, childVal)\n  }\n\n  return mergeDataOrFn(parentVal, childVal, vm)\n};\n\n/**\n * Hooks and props are merged as arrays.\n */\nfunction mergeHook (\n  parentVal,\n  childVal\n) {\n  var res = childVal\n    ? parentVal\n      ? parentVal.concat(childVal)\n      : Array.isArray(childVal)\n        ? childVal\n        : [childVal]\n    : parentVal;\n  return res\n    ? dedupeHooks(res)\n    : res\n}\n\nfunction dedupeHooks (hooks) {\n  var res = [];\n  for (var i = 0; i < hooks.length; i++) {\n    if (res.indexOf(hooks[i]) === -1) {\n      res.push(hooks[i]);\n    }\n  }\n  return res\n}\n\nLIFECYCLE_HOOKS.forEach(function (hook) {\n  strats[hook] = mergeHook;\n});\n\n/**\n * Assets\n *\n * When a vm is present (instance creation), we need to do\n * a three-way merge between constructor options, instance\n * options and parent options.\n */\nfunction mergeAssets (\n  parentVal,\n  childVal,\n  vm,\n  key\n) {\n  var res = Object.create(parentVal || null);\n  if (childVal) {\n    process.env.NODE_ENV !== 'production' && assertObjectType(key, childVal, vm);\n    return extend(res, childVal)\n  } else {\n    return res\n  }\n}\n\nASSET_TYPES.forEach(function (type) {\n  strats[type + 's'] = mergeAssets;\n});\n\n/**\n * Watchers.\n *\n * Watchers hashes should not overwrite one\n * another, so we merge them as arrays.\n */\nstrats.watch = function (\n  parentVal,\n  childVal,\n  vm,\n  key\n) {\n  // work around Firefox's Object.prototype.watch...\n  if (parentVal === nativeWatch) { parentVal = undefined; }\n  if (childVal === nativeWatch) { childVal = undefined; }\n  /* istanbul ignore if */\n  if (!childVal) { return Object.create(parentVal || null) }\n  if (process.env.NODE_ENV !== 'production') {\n    assertObjectType(key, childVal, vm);\n  }\n  if (!parentVal) { return childVal }\n  var ret = {};\n  extend(ret, parentVal);\n  for (var key$1 in childVal) {\n    var parent = ret[key$1];\n    var child = childVal[key$1];\n    if (parent && !Array.isArray(parent)) {\n      parent = [parent];\n    }\n    ret[key$1] = parent\n      ? parent.concat(child)\n      : Array.isArray(child) ? child : [child];\n  }\n  return ret\n};\n\n/**\n * Other object hashes.\n */\nstrats.props =\nstrats.methods =\nstrats.inject =\nstrats.computed = function (\n  parentVal,\n  childVal,\n  vm,\n  key\n) {\n  if (childVal && process.env.NODE_ENV !== 'production') {\n    assertObjectType(key, childVal, vm);\n  }\n  if (!parentVal) { return childVal }\n  var ret = Object.create(null);\n  extend(ret, parentVal);\n  if (childVal) { extend(ret, childVal); }\n  return ret\n};\nstrats.provide = mergeDataOrFn;\n\n/**\n * Default strategy.\n */\nvar defaultStrat = function (parentVal, childVal) {\n  return childVal === undefined\n    ? parentVal\n    : childVal\n};\n\n/**\n * Validate component names\n */\nfunction checkComponents (options) {\n  for (var key in options.components) {\n    validateComponentName(key);\n  }\n}\n\nfunction validateComponentName (name) {\n  if (!new RegExp((\"^[a-zA-Z][\\\\-\\\\.0-9_\" + (unicodeRegExp.source) + \"]*$\")).test(name)) {\n    warn(\n      'Invalid component name: \"' + name + '\". Component names ' +\n      'should conform to valid custom element name in html5 specification.'\n    );\n  }\n  if (isBuiltInTag(name) || config.isReservedTag(name)) {\n    warn(\n      'Do not use built-in or reserved HTML elements as component ' +\n      'id: ' + name\n    );\n  }\n}\n\n/**\n * Ensure all props option syntax are normalized into the\n * Object-based format.\n */\nfunction normalizeProps (options, vm) {\n  var props = options.props;\n  if (!props) { return }\n  var res = {};\n  var i, val, name;\n  if (Array.isArray(props)) {\n    i = props.length;\n    while (i--) {\n      val = props[i];\n      if (typeof val === 'string') {\n        name = camelize(val);\n        res[name] = { type: null };\n      } else if (process.env.NODE_ENV !== 'production') {\n        warn('props must be strings when using array syntax.');\n      }\n    }\n  } else if (isPlainObject(props)) {\n    for (var key in props) {\n      val = props[key];\n      name = camelize(key);\n      res[name] = isPlainObject(val)\n        ? val\n        : { type: val };\n    }\n  } else if (process.env.NODE_ENV !== 'production') {\n    warn(\n      \"Invalid value for option \\\"props\\\": expected an Array or an Object, \" +\n      \"but got \" + (toRawType(props)) + \".\",\n      vm\n    );\n  }\n  options.props = res;\n}\n\n/**\n * Normalize all injections into Object-based format\n */\nfunction normalizeInject (options, vm) {\n  var inject = options.inject;\n  if (!inject) { return }\n  var normalized = options.inject = {};\n  if (Array.isArray(inject)) {\n    for (var i = 0; i < inject.length; i++) {\n      normalized[inject[i]] = { from: inject[i] };\n    }\n  } else if (isPlainObject(inject)) {\n    for (var key in inject) {\n      var val = inject[key];\n      normalized[key] = isPlainObject(val)\n        ? extend({ from: key }, val)\n        : { from: val };\n    }\n  } else if (process.env.NODE_ENV !== 'production') {\n    warn(\n      \"Invalid value for option \\\"inject\\\": expected an Array or an Object, \" +\n      \"but got \" + (toRawType(inject)) + \".\",\n      vm\n    );\n  }\n}\n\n/**\n * Normalize raw function directives into object format.\n */\nfunction normalizeDirectives (options) {\n  var dirs = options.directives;\n  if (dirs) {\n    for (var key in dirs) {\n      var def$$1 = dirs[key];\n      if (typeof def$$1 === 'function') {\n        dirs[key] = { bind: def$$1, update: def$$1 };\n      }\n    }\n  }\n}\n\nfunction assertObjectType (name, value, vm) {\n  if (!isPlainObject(value)) {\n    warn(\n      \"Invalid value for option \\\"\" + name + \"\\\": expected an Object, \" +\n      \"but got \" + (toRawType(value)) + \".\",\n      vm\n    );\n  }\n}\n\n/**\n * Merge two option objects into a new one.\n * Core utility used in both instantiation and inheritance.\n */\nfunction mergeOptions (\n  parent,\n  child,\n  vm\n) {\n  if (process.env.NODE_ENV !== 'production') {\n    checkComponents(child);\n  }\n\n  if (typeof child === 'function') {\n    child = child.options;\n  }\n\n  normalizeProps(child, vm);\n  normalizeInject(child, vm);\n  normalizeDirectives(child);\n\n  // Apply extends and mixins on the child options,\n  // but only if it is a raw options object that isn't\n  // the result of another mergeOptions call.\n  // Only merged options has the _base property.\n  if (!child._base) {\n    if (child.extends) {\n      parent = mergeOptions(parent, child.extends, vm);\n    }\n    if (child.mixins) {\n      for (var i = 0, l = child.mixins.length; i < l; i++) {\n        parent = mergeOptions(parent, child.mixins[i], vm);\n      }\n    }\n  }\n\n  var options = {};\n  var key;\n  for (key in parent) {\n    mergeField(key);\n  }\n  for (key in child) {\n    if (!hasOwn(parent, key)) {\n      mergeField(key);\n    }\n  }\n  function mergeField (key) {\n    var strat = strats[key] || defaultStrat;\n    options[key] = strat(parent[key], child[key], vm, key);\n  }\n  return options\n}\n\n/**\n * Resolve an asset.\n * This function is used because child instances need access\n * to assets defined in its ancestor chain.\n */\nfunction resolveAsset (\n  options,\n  type,\n  id,\n  warnMissing\n) {\n  /* istanbul ignore if */\n  if (typeof id !== 'string') {\n    return\n  }\n  var assets = options[type];\n  // check local registration variations first\n  if (hasOwn(assets, id)) { return assets[id] }\n  var camelizedId = camelize(id);\n  if (hasOwn(assets, camelizedId)) { return assets[camelizedId] }\n  var PascalCaseId = capitalize(camelizedId);\n  if (hasOwn(assets, PascalCaseId)) { return assets[PascalCaseId] }\n  // fallback to prototype chain\n  var res = assets[id] || assets[camelizedId] || assets[PascalCaseId];\n  if (process.env.NODE_ENV !== 'production' && warnMissing && !res) {\n    warn(\n      'Failed to resolve ' + type.slice(0, -1) + ': ' + id,\n      options\n    );\n  }\n  return res\n}\n\n/*  */\n\n\n\nfunction validateProp (\n  key,\n  propOptions,\n  propsData,\n  vm\n) {\n  var prop = propOptions[key];\n  var absent = !hasOwn(propsData, key);\n  var value = propsData[key];\n  // boolean casting\n  var booleanIndex = getTypeIndex(Boolean, prop.type);\n  if (booleanIndex > -1) {\n    if (absent && !hasOwn(prop, 'default')) {\n      value = false;\n    } else if (value === '' || value === hyphenate(key)) {\n      // only cast empty string / same name to boolean if\n      // boolean has higher priority\n      var stringIndex = getTypeIndex(String, prop.type);\n      if (stringIndex < 0 || booleanIndex < stringIndex) {\n        value = true;\n      }\n    }\n  }\n  // check default value\n  if (value === undefined) {\n    value = getPropDefaultValue(vm, prop, key);\n    // since the default value is a fresh copy,\n    // make sure to observe it.\n    var prevShouldObserve = shouldObserve;\n    toggleObserving(true);\n    observe(value);\n    toggleObserving(prevShouldObserve);\n  }\n  if (\n    process.env.NODE_ENV !== 'production' &&\n    // skip validation for weex recycle-list child component props\n    !(false)\n  ) {\n    assertProp(prop, key, value, vm, absent);\n  }\n  return value\n}\n\n/**\n * Get the default value of a prop.\n */\nfunction getPropDefaultValue (vm, prop, key) {\n  // no default, return undefined\n  if (!hasOwn(prop, 'default')) {\n    return undefined\n  }\n  var def = prop.default;\n  // warn against non-factory defaults for Object & Array\n  if (process.env.NODE_ENV !== 'production' && isObject(def)) {\n    warn(\n      'Invalid default value for prop \"' + key + '\": ' +\n      'Props with type Object/Array must use a factory function ' +\n      'to return the default value.',\n      vm\n    );\n  }\n  // the raw prop value was also undefined from previous render,\n  // return previous default value to avoid unnecessary watcher trigger\n  if (vm && vm.$options.propsData &&\n    vm.$options.propsData[key] === undefined &&\n    vm._props[key] !== undefined\n  ) {\n    return vm._props[key]\n  }\n  // call factory function for non-Function types\n  // a value is Function if its prototype is function even across different execution context\n  return typeof def === 'function' && getType(prop.type) !== 'Function'\n    ? def.call(vm)\n    : def\n}\n\n/**\n * Assert whether a prop is valid.\n */\nfunction assertProp (\n  prop,\n  name,\n  value,\n  vm,\n  absent\n) {\n  if (prop.required && absent) {\n    warn(\n      'Missing required prop: \"' + name + '\"',\n      vm\n    );\n    return\n  }\n  if (value == null && !prop.required) {\n    return\n  }\n  var type = prop.type;\n  var valid = !type || type === true;\n  var expectedTypes = [];\n  if (type) {\n    if (!Array.isArray(type)) {\n      type = [type];\n    }\n    for (var i = 0; i < type.length && !valid; i++) {\n      var assertedType = assertType(value, type[i]);\n      expectedTypes.push(assertedType.expectedType || '');\n      valid = assertedType.valid;\n    }\n  }\n\n  if (!valid) {\n    warn(\n      getInvalidTypeMessage(name, value, expectedTypes),\n      vm\n    );\n    return\n  }\n  var validator = prop.validator;\n  if (validator) {\n    if (!validator(value)) {\n      warn(\n        'Invalid prop: custom validator check failed for prop \"' + name + '\".',\n        vm\n      );\n    }\n  }\n}\n\nvar simpleCheckRE = /^(String|Number|Boolean|Function|Symbol)$/;\n\nfunction assertType (value, type) {\n  var valid;\n  var expectedType = getType(type);\n  if (simpleCheckRE.test(expectedType)) {\n    var t = typeof value;\n    valid = t === expectedType.toLowerCase();\n    // for primitive wrapper objects\n    if (!valid && t === 'object') {\n      valid = value instanceof type;\n    }\n  } else if (expectedType === 'Object') {\n    valid = isPlainObject(value);\n  } else if (expectedType === 'Array') {\n    valid = Array.isArray(value);\n  } else {\n    valid = value instanceof type;\n  }\n  return {\n    valid: valid,\n    expectedType: expectedType\n  }\n}\n\n/**\n * Use function string name to check built-in types,\n * because a simple equality check will fail when running\n * across different vms / iframes.\n */\nfunction getType (fn) {\n  var match = fn && fn.toString().match(/^\\s*function (\\w+)/);\n  return match ? match[1] : ''\n}\n\nfunction isSameType (a, b) {\n  return getType(a) === getType(b)\n}\n\nfunction getTypeIndex (type, expectedTypes) {\n  if (!Array.isArray(expectedTypes)) {\n    return isSameType(expectedTypes, type) ? 0 : -1\n  }\n  for (var i = 0, len = expectedTypes.length; i < len; i++) {\n    if (isSameType(expectedTypes[i], type)) {\n      return i\n    }\n  }\n  return -1\n}\n\nfunction getInvalidTypeMessage (name, value, expectedTypes) {\n  var message = \"Invalid prop: type check failed for prop \\\"\" + name + \"\\\".\" +\n    \" Expected \" + (expectedTypes.map(capitalize).join(', '));\n  var expectedType = expectedTypes[0];\n  var receivedType = toRawType(value);\n  var expectedValue = styleValue(value, expectedType);\n  var receivedValue = styleValue(value, receivedType);\n  // check if we need to specify expected value\n  if (expectedTypes.length === 1 &&\n      isExplicable(expectedType) &&\n      !isBoolean(expectedType, receivedType)) {\n    message += \" with value \" + expectedValue;\n  }\n  message += \", got \" + receivedType + \" \";\n  // check if we need to specify received value\n  if (isExplicable(receivedType)) {\n    message += \"with value \" + receivedValue + \".\";\n  }\n  return message\n}\n\nfunction styleValue (value, type) {\n  if (type === 'String') {\n    return (\"\\\"\" + value + \"\\\"\")\n  } else if (type === 'Number') {\n    return (\"\" + (Number(value)))\n  } else {\n    return (\"\" + value)\n  }\n}\n\nfunction isExplicable (value) {\n  var explicitTypes = ['string', 'number', 'boolean'];\n  return explicitTypes.some(function (elem) { return value.toLowerCase() === elem; })\n}\n\nfunction isBoolean () {\n  var args = [], len = arguments.length;\n  while ( len-- ) args[ len ] = arguments[ len ];\n\n  return args.some(function (elem) { return elem.toLowerCase() === 'boolean'; })\n}\n\n/*  */\n\nfunction handleError (err, vm, info) {\n  // Deactivate deps tracking while processing error handler to avoid possible infinite rendering.\n  // See: https://github.com/vuejs/vuex/issues/1505\n  pushTarget();\n  try {\n    if (vm) {\n      var cur = vm;\n      while ((cur = cur.$parent)) {\n        var hooks = cur.$options.errorCaptured;\n        if (hooks) {\n          for (var i = 0; i < hooks.length; i++) {\n            try {\n              var capture = hooks[i].call(cur, err, vm, info) === false;\n              if (capture) { return }\n            } catch (e) {\n              globalHandleError(e, cur, 'errorCaptured hook');\n            }\n          }\n        }\n      }\n    }\n    globalHandleError(err, vm, info);\n  } finally {\n    popTarget();\n  }\n}\n\nfunction invokeWithErrorHandling (\n  handler,\n  context,\n  args,\n  vm,\n  info\n) {\n  var res;\n  try {\n    res = args ? handler.apply(context, args) : handler.call(context);\n    if (res && !res._isVue && isPromise(res) && !res._handled) {\n      res.catch(function (e) { return handleError(e, vm, info + \" (Promise/async)\"); });\n      // issue #9511\n      // avoid catch triggering multiple times when nested calls\n      res._handled = true;\n    }\n  } catch (e) {\n    handleError(e, vm, info);\n  }\n  return res\n}\n\nfunction globalHandleError (err, vm, info) {\n  if (config.errorHandler) {\n    try {\n      return config.errorHandler.call(null, err, vm, info)\n    } catch (e) {\n      // if the user intentionally throws the original error in the handler,\n      // do not log it twice\n      if (e !== err) {\n        logError(e, null, 'config.errorHandler');\n      }\n    }\n  }\n  logError(err, vm, info);\n}\n\nfunction logError (err, vm, info) {\n  if (process.env.NODE_ENV !== 'production') {\n    warn((\"Error in \" + info + \": \\\"\" + (err.toString()) + \"\\\"\"), vm);\n  }\n  /* istanbul ignore else */\n  if ((inBrowser || inWeex) && typeof console !== 'undefined') {\n    console.error(err);\n  } else {\n    throw err\n  }\n}\n\n/*  */\n\nvar isUsingMicroTask = false;\n\nvar callbacks = [];\nvar pending = false;\n\nfunction flushCallbacks () {\n  pending = false;\n  var copies = callbacks.slice(0);\n  callbacks.length = 0;\n  for (var i = 0; i < copies.length; i++) {\n    copies[i]();\n  }\n}\n\n// Here we have async deferring wrappers using microtasks.\n// In 2.5 we used (macro) tasks (in combination with microtasks).\n// However, it has subtle problems when state is changed right before repaint\n// (e.g. #6813, out-in transitions).\n// Also, using (macro) tasks in event handler would cause some weird behaviors\n// that cannot be circumvented (e.g. #7109, #7153, #7546, #7834, #8109).\n// So we now use microtasks everywhere, again.\n// A major drawback of this tradeoff is that there are some scenarios\n// where microtasks have too high a priority and fire in between supposedly\n// sequential events (e.g. #4521, #6690, which have workarounds)\n// or even between bubbling of the same event (#6566).\nvar timerFunc;\n\n// The nextTick behavior leverages the microtask queue, which can be accessed\n// via either native Promise.then or MutationObserver.\n// MutationObserver has wider support, however it is seriously bugged in\n// UIWebView in iOS >= 9.3.3 when triggered in touch event handlers. It\n// completely stops working after triggering a few times... so, if native\n// Promise is available, we will use it:\n/* istanbul ignore next, $flow-disable-line */\nif (typeof Promise !== 'undefined' && isNative(Promise)) {\n  var p = Promise.resolve();\n  timerFunc = function () {\n    p.then(flushCallbacks);\n    // In problematic UIWebViews, Promise.then doesn't completely break, but\n    // it can get stuck in a weird state where callbacks are pushed into the\n    // microtask queue but the queue isn't being flushed, until the browser\n    // needs to do some other work, e.g. handle a timer. Therefore we can\n    // \"force\" the microtask queue to be flushed by adding an empty timer.\n    if (isIOS) { setTimeout(noop); }\n  };\n  isUsingMicroTask = true;\n} else if (!isIE && typeof MutationObserver !== 'undefined' && (\n  isNative(MutationObserver) ||\n  // PhantomJS and iOS 7.x\n  MutationObserver.toString() === '[object MutationObserverConstructor]'\n)) {\n  // Use MutationObserver where native Promise is not available,\n  // e.g. PhantomJS, iOS7, Android 4.4\n  // (#6466 MutationObserver is unreliable in IE11)\n  var counter = 1;\n  var observer = new MutationObserver(flushCallbacks);\n  var textNode = document.createTextNode(String(counter));\n  observer.observe(textNode, {\n    characterData: true\n  });\n  timerFunc = function () {\n    counter = (counter + 1) % 2;\n    textNode.data = String(counter);\n  };\n  isUsingMicroTask = true;\n} else if (typeof setImmediate !== 'undefined' && isNative(setImmediate)) {\n  // Fallback to setImmediate.\n  // Technically it leverages the (macro) task queue,\n  // but it is still a better choice than setTimeout.\n  timerFunc = function () {\n    setImmediate(flushCallbacks);\n  };\n} else {\n  // Fallback to setTimeout.\n  timerFunc = function () {\n    setTimeout(flushCallbacks, 0);\n  };\n}\n\nfunction nextTick (cb, ctx) {\n  var _resolve;\n  callbacks.push(function () {\n    if (cb) {\n      try {\n        cb.call(ctx);\n      } catch (e) {\n        handleError(e, ctx, 'nextTick');\n      }\n    } else if (_resolve) {\n      _resolve(ctx);\n    }\n  });\n  if (!pending) {\n    pending = true;\n    timerFunc();\n  }\n  // $flow-disable-line\n  if (!cb && typeof Promise !== 'undefined') {\n    return new Promise(function (resolve) {\n      _resolve = resolve;\n    })\n  }\n}\n\n/*  */\n\n/* not type checking this file because flow doesn't play well with Proxy */\n\nvar initProxy;\n\nif (process.env.NODE_ENV !== 'production') {\n  var allowedGlobals = makeMap(\n    'Infinity,undefined,NaN,isFinite,isNaN,' +\n    'parseFloat,parseInt,decodeURI,decodeURIComponent,encodeURI,encodeURIComponent,' +\n    'Math,Number,Date,Array,Object,Boolean,String,RegExp,Map,Set,JSON,Intl,' +\n    'require' // for Webpack/Browserify\n  );\n\n  var warnNonPresent = function (target, key) {\n    warn(\n      \"Property or method \\\"\" + key + \"\\\" is not defined on the instance but \" +\n      'referenced during render. Make sure that this property is reactive, ' +\n      'either in the data option, or for class-based components, by ' +\n      'initializing the property. ' +\n      'See: https://vuejs.org/v2/guide/reactivity.html#Declaring-Reactive-Properties.',\n      target\n    );\n  };\n\n  var warnReservedPrefix = function (target, key) {\n    warn(\n      \"Property \\\"\" + key + \"\\\" must be accessed with \\\"$data.\" + key + \"\\\" because \" +\n      'properties starting with \"$\" or \"_\" are not proxied in the Vue instance to ' +\n      'prevent conflicts with Vue internals. ' +\n      'See: https://vuejs.org/v2/api/#data',\n      target\n    );\n  };\n\n  var hasProxy =\n    typeof Proxy !== 'undefined' && isNative(Proxy);\n\n  if (hasProxy) {\n    var isBuiltInModifier = makeMap('stop,prevent,self,ctrl,shift,alt,meta,exact');\n    config.keyCodes = new Proxy(config.keyCodes, {\n      set: function set (target, key, value) {\n        if (isBuiltInModifier(key)) {\n          warn((\"Avoid overwriting built-in modifier in config.keyCodes: .\" + key));\n          return false\n        } else {\n          target[key] = value;\n          return true\n        }\n      }\n    });\n  }\n\n  var hasHandler = {\n    has: function has (target, key) {\n      var has = key in target;\n      var isAllowed = allowedGlobals(key) ||\n        (typeof key === 'string' && key.charAt(0) === '_' && !(key in target.$data));\n      if (!has && !isAllowed) {\n        if (key in target.$data) { warnReservedPrefix(target, key); }\n        else { warnNonPresent(target, key); }\n      }\n      return has || !isAllowed\n    }\n  };\n\n  var getHandler = {\n    get: function get (target, key) {\n      if (typeof key === 'string' && !(key in target)) {\n        if (key in target.$data) { warnReservedPrefix(target, key); }\n        else { warnNonPresent(target, key); }\n      }\n      return target[key]\n    }\n  };\n\n  initProxy = function initProxy (vm) {\n    if (hasProxy) {\n      // determine which proxy handler to use\n      var options = vm.$options;\n      var handlers = options.render && options.render._withStripped\n        ? getHandler\n        : hasHandler;\n      vm._renderProxy = new Proxy(vm, handlers);\n    } else {\n      vm._renderProxy = vm;\n    }\n  };\n}\n\n/*  */\n\nvar seenObjects = new _Set();\n\n/**\n * Recursively traverse an object to evoke all converted\n * getters, so that every nested property inside the object\n * is collected as a \"deep\" dependency.\n */\nfunction traverse (val) {\n  _traverse(val, seenObjects);\n  seenObjects.clear();\n}\n\nfunction _traverse (val, seen) {\n  var i, keys;\n  var isA = Array.isArray(val);\n  if ((!isA && !isObject(val)) || Object.isFrozen(val) || val instanceof VNode) {\n    return\n  }\n  if (val.__ob__) {\n    var depId = val.__ob__.dep.id;\n    if (seen.has(depId)) {\n      return\n    }\n    seen.add(depId);\n  }\n  if (isA) {\n    i = val.length;\n    while (i--) { _traverse(val[i], seen); }\n  } else {\n    keys = Object.keys(val);\n    i = keys.length;\n    while (i--) { _traverse(val[keys[i]], seen); }\n  }\n}\n\nvar mark;\nvar measure;\n\nif (process.env.NODE_ENV !== 'production') {\n  var perf = inBrowser && window.performance;\n  /* istanbul ignore if */\n  if (\n    perf &&\n    perf.mark &&\n    perf.measure &&\n    perf.clearMarks &&\n    perf.clearMeasures\n  ) {\n    mark = function (tag) { return perf.mark(tag); };\n    measure = function (name, startTag, endTag) {\n      perf.measure(name, startTag, endTag);\n      perf.clearMarks(startTag);\n      perf.clearMarks(endTag);\n      // perf.clearMeasures(name)\n    };\n  }\n}\n\n/*  */\n\nvar normalizeEvent = cached(function (name) {\n  var passive = name.charAt(0) === '&';\n  name = passive ? name.slice(1) : name;\n  var once$$1 = name.charAt(0) === '~'; // Prefixed last, checked first\n  name = once$$1 ? name.slice(1) : name;\n  var capture = name.charAt(0) === '!';\n  name = capture ? name.slice(1) : name;\n  return {\n    name: name,\n    once: once$$1,\n    capture: capture,\n    passive: passive\n  }\n});\n\nfunction createFnInvoker (fns, vm) {\n  function invoker () {\n    var arguments$1 = arguments;\n\n    var fns = invoker.fns;\n    if (Array.isArray(fns)) {\n      var cloned = fns.slice();\n      for (var i = 0; i < cloned.length; i++) {\n        invokeWithErrorHandling(cloned[i], null, arguments$1, vm, \"v-on handler\");\n      }\n    } else {\n      // return handler return value for single handlers\n      return invokeWithErrorHandling(fns, null, arguments, vm, \"v-on handler\")\n    }\n  }\n  invoker.fns = fns;\n  return invoker\n}\n\nfunction updateListeners (\n  on,\n  oldOn,\n  add,\n  remove$$1,\n  createOnceHandler,\n  vm\n) {\n  var name, def$$1, cur, old, event;\n  for (name in on) {\n    def$$1 = cur = on[name];\n    old = oldOn[name];\n    event = normalizeEvent(name);\n    if (isUndef(cur)) {\n      process.env.NODE_ENV !== 'production' && warn(\n        \"Invalid handler for event \\\"\" + (event.name) + \"\\\": got \" + String(cur),\n        vm\n      );\n    } else if (isUndef(old)) {\n      if (isUndef(cur.fns)) {\n        cur = on[name] = createFnInvoker(cur, vm);\n      }\n      if (isTrue(event.once)) {\n        cur = on[name] = createOnceHandler(event.name, cur, event.capture);\n      }\n      add(event.name, cur, event.capture, event.passive, event.params);\n    } else if (cur !== old) {\n      old.fns = cur;\n      on[name] = old;\n    }\n  }\n  for (name in oldOn) {\n    if (isUndef(on[name])) {\n      event = normalizeEvent(name);\n      remove$$1(event.name, oldOn[name], event.capture);\n    }\n  }\n}\n\n/*  */\n\nfunction mergeVNodeHook (def, hookKey, hook) {\n  if (def instanceof VNode) {\n    def = def.data.hook || (def.data.hook = {});\n  }\n  var invoker;\n  var oldHook = def[hookKey];\n\n  function wrappedHook () {\n    hook.apply(this, arguments);\n    // important: remove merged hook to ensure it's called only once\n    // and prevent memory leak\n    remove(invoker.fns, wrappedHook);\n  }\n\n  if (isUndef(oldHook)) {\n    // no existing hook\n    invoker = createFnInvoker([wrappedHook]);\n  } else {\n    /* istanbul ignore if */\n    if (isDef(oldHook.fns) && isTrue(oldHook.merged)) {\n      // already a merged invoker\n      invoker = oldHook;\n      invoker.fns.push(wrappedHook);\n    } else {\n      // existing plain hook\n      invoker = createFnInvoker([oldHook, wrappedHook]);\n    }\n  }\n\n  invoker.merged = true;\n  def[hookKey] = invoker;\n}\n\n/*  */\n\nfunction extractPropsFromVNodeData (\n  data,\n  Ctor,\n  tag\n) {\n  // we are only extracting raw values here.\n  // validation and default values are handled in the child\n  // component itself.\n  var propOptions = Ctor.options.props;\n  if (isUndef(propOptions)) {\n    return\n  }\n  var res = {};\n  var attrs = data.attrs;\n  var props = data.props;\n  if (isDef(attrs) || isDef(props)) {\n    for (var key in propOptions) {\n      var altKey = hyphenate(key);\n      if (process.env.NODE_ENV !== 'production') {\n        var keyInLowerCase = key.toLowerCase();\n        if (\n          key !== keyInLowerCase &&\n          attrs && hasOwn(attrs, keyInLowerCase)\n        ) {\n          tip(\n            \"Prop \\\"\" + keyInLowerCase + \"\\\" is passed to component \" +\n            (formatComponentName(tag || Ctor)) + \", but the declared prop name is\" +\n            \" \\\"\" + key + \"\\\". \" +\n            \"Note that HTML attributes are case-insensitive and camelCased \" +\n            \"props need to use their kebab-case equivalents when using in-DOM \" +\n            \"templates. You should probably use \\\"\" + altKey + \"\\\" instead of \\\"\" + key + \"\\\".\"\n          );\n        }\n      }\n      checkProp(res, props, key, altKey, true) ||\n      checkProp(res, attrs, key, altKey, false);\n    }\n  }\n  return res\n}\n\nfunction checkProp (\n  res,\n  hash,\n  key,\n  altKey,\n  preserve\n) {\n  if (isDef(hash)) {\n    if (hasOwn(hash, key)) {\n      res[key] = hash[key];\n      if (!preserve) {\n        delete hash[key];\n      }\n      return true\n    } else if (hasOwn(hash, altKey)) {\n      res[key] = hash[altKey];\n      if (!preserve) {\n        delete hash[altKey];\n      }\n      return true\n    }\n  }\n  return false\n}\n\n/*  */\n\n// The template compiler attempts to minimize the need for normalization by\n// statically analyzing the template at compile time.\n//\n// For plain HTML markup, normalization can be completely skipped because the\n// generated render function is guaranteed to return Array<VNode>. There are\n// two cases where extra normalization is needed:\n\n// 1. When the children contains components - because a functional component\n// may return an Array instead of a single root. In this case, just a simple\n// normalization is needed - if any child is an Array, we flatten the whole\n// thing with Array.prototype.concat. It is guaranteed to be only 1-level deep\n// because functional components already normalize their own children.\nfunction simpleNormalizeChildren (children) {\n  for (var i = 0; i < children.length; i++) {\n    if (Array.isArray(children[i])) {\n      return Array.prototype.concat.apply([], children)\n    }\n  }\n  return children\n}\n\n// 2. When the children contains constructs that always generated nested Arrays,\n// e.g. <template>, <slot>, v-for, or when the children is provided by user\n// with hand-written render functions / JSX. In such cases a full normalization\n// is needed to cater to all possible types of children values.\nfunction normalizeChildren (children) {\n  return isPrimitive(children)\n    ? [createTextVNode(children)]\n    : Array.isArray(children)\n      ? normalizeArrayChildren(children)\n      : undefined\n}\n\nfunction isTextNode (node) {\n  return isDef(node) && isDef(node.text) && isFalse(node.isComment)\n}\n\nfunction normalizeArrayChildren (children, nestedIndex) {\n  var res = [];\n  var i, c, lastIndex, last;\n  for (i = 0; i < children.length; i++) {\n    c = children[i];\n    if (isUndef(c) || typeof c === 'boolean') { continue }\n    lastIndex = res.length - 1;\n    last = res[lastIndex];\n    //  nested\n    if (Array.isArray(c)) {\n      if (c.length > 0) {\n        c = normalizeArrayChildren(c, ((nestedIndex || '') + \"_\" + i));\n        // merge adjacent text nodes\n        if (isTextNode(c[0]) && isTextNode(last)) {\n          res[lastIndex] = createTextVNode(last.text + (c[0]).text);\n          c.shift();\n        }\n        res.push.apply(res, c);\n      }\n    } else if (isPrimitive(c)) {\n      if (isTextNode(last)) {\n        // merge adjacent text nodes\n        // this is necessary for SSR hydration because text nodes are\n        // essentially merged when rendered to HTML strings\n        res[lastIndex] = createTextVNode(last.text + c);\n      } else if (c !== '') {\n        // convert primitive to vnode\n        res.push(createTextVNode(c));\n      }\n    } else {\n      if (isTextNode(c) && isTextNode(last)) {\n        // merge adjacent text nodes\n        res[lastIndex] = createTextVNode(last.text + c.text);\n      } else {\n        // default key for nested array children (likely generated by v-for)\n        if (isTrue(children._isVList) &&\n          isDef(c.tag) &&\n          isUndef(c.key) &&\n          isDef(nestedIndex)) {\n          c.key = \"__vlist\" + nestedIndex + \"_\" + i + \"__\";\n        }\n        res.push(c);\n      }\n    }\n  }\n  return res\n}\n\n/*  */\n\nfunction initProvide (vm) {\n  var provide = vm.$options.provide;\n  if (provide) {\n    vm._provided = typeof provide === 'function'\n      ? provide.call(vm)\n      : provide;\n  }\n}\n\nfunction initInjections (vm) {\n  var result = resolveInject(vm.$options.inject, vm);\n  if (result) {\n    toggleObserving(false);\n    Object.keys(result).forEach(function (key) {\n      /* istanbul ignore else */\n      if (process.env.NODE_ENV !== 'production') {\n        defineReactive$$1(vm, key, result[key], function () {\n          warn(\n            \"Avoid mutating an injected value directly since the changes will be \" +\n            \"overwritten whenever the provided component re-renders. \" +\n            \"injection being mutated: \\\"\" + key + \"\\\"\",\n            vm\n          );\n        });\n      } else {\n        defineReactive$$1(vm, key, result[key]);\n      }\n    });\n    toggleObserving(true);\n  }\n}\n\nfunction resolveInject (inject, vm) {\n  if (inject) {\n    // inject is :any because flow is not smart enough to figure out cached\n    var result = Object.create(null);\n    var keys = hasSymbol\n      ? Reflect.ownKeys(inject)\n      : Object.keys(inject);\n\n    for (var i = 0; i < keys.length; i++) {\n      var key = keys[i];\n      // #6574 in case the inject object is observed...\n      if (key === '__ob__') { continue }\n      var provideKey = inject[key].from;\n      var source = vm;\n      while (source) {\n        if (source._provided && hasOwn(source._provided, provideKey)) {\n          result[key] = source._provided[provideKey];\n          break\n        }\n        source = source.$parent;\n      }\n      if (!source) {\n        if ('default' in inject[key]) {\n          var provideDefault = inject[key].default;\n          result[key] = typeof provideDefault === 'function'\n            ? provideDefault.call(vm)\n            : provideDefault;\n        } else if (process.env.NODE_ENV !== 'production') {\n          warn((\"Injection \\\"\" + key + \"\\\" not found\"), vm);\n        }\n      }\n    }\n    return result\n  }\n}\n\n/*  */\n\n\n\n/**\n * Runtime helper for resolving raw children VNodes into a slot object.\n */\nfunction resolveSlots (\n  children,\n  context\n) {\n  if (!children || !children.length) {\n    return {}\n  }\n  var slots = {};\n  for (var i = 0, l = children.length; i < l; i++) {\n    var child = children[i];\n    var data = child.data;\n    // remove slot attribute if the node is resolved as a Vue slot node\n    if (data && data.attrs && data.attrs.slot) {\n      delete data.attrs.slot;\n    }\n    // named slots should only be respected if the vnode was rendered in the\n    // same context.\n    if ((child.context === context || child.fnContext === context) &&\n      data && data.slot != null\n    ) {\n      var name = data.slot;\n      var slot = (slots[name] || (slots[name] = []));\n      if (child.tag === 'template') {\n        slot.push.apply(slot, child.children || []);\n      } else {\n        slot.push(child);\n      }\n    } else {\n      (slots.default || (slots.default = [])).push(child);\n    }\n  }\n  // ignore slots that contains only whitespace\n  for (var name$1 in slots) {\n    if (slots[name$1].every(isWhitespace)) {\n      delete slots[name$1];\n    }\n  }\n  return slots\n}\n\nfunction isWhitespace (node) {\n  return (node.isComment && !node.asyncFactory) || node.text === ' '\n}\n\n/*  */\n\nfunction normalizeScopedSlots (\n  slots,\n  normalSlots,\n  prevSlots\n) {\n  var res;\n  var hasNormalSlots = Object.keys(normalSlots).length > 0;\n  var isStable = slots ? !!slots.$stable : !hasNormalSlots;\n  var key = slots && slots.$key;\n  if (!slots) {\n    res = {};\n  } else if (slots._normalized) {\n    // fast path 1: child component re-render only, parent did not change\n    return slots._normalized\n  } else if (\n    isStable &&\n    prevSlots &&\n    prevSlots !== emptyObject &&\n    key === prevSlots.$key &&\n    !hasNormalSlots &&\n    !prevSlots.$hasNormal\n  ) {\n    // fast path 2: stable scoped slots w/ no normal slots to proxy,\n    // only need to normalize once\n    return prevSlots\n  } else {\n    res = {};\n    for (var key$1 in slots) {\n      if (slots[key$1] && key$1[0] !== '$') {\n        res[key$1] = normalizeScopedSlot(normalSlots, key$1, slots[key$1]);\n      }\n    }\n  }\n  // expose normal slots on scopedSlots\n  for (var key$2 in normalSlots) {\n    if (!(key$2 in res)) {\n      res[key$2] = proxyNormalSlot(normalSlots, key$2);\n    }\n  }\n  // avoriaz seems to mock a non-extensible $scopedSlots object\n  // and when that is passed down this would cause an error\n  if (slots && Object.isExtensible(slots)) {\n    (slots)._normalized = res;\n  }\n  def(res, '$stable', isStable);\n  def(res, '$key', key);\n  def(res, '$hasNormal', hasNormalSlots);\n  return res\n}\n\nfunction normalizeScopedSlot(normalSlots, key, fn) {\n  var normalized = function () {\n    var res = arguments.length ? fn.apply(null, arguments) : fn({});\n    res = res && typeof res === 'object' && !Array.isArray(res)\n      ? [res] // single vnode\n      : normalizeChildren(res);\n    return res && (\n      res.length === 0 ||\n      (res.length === 1 && res[0].isComment) // #9658\n    ) ? undefined\n      : res\n  };\n  // this is a slot using the new v-slot syntax without scope. although it is\n  // compiled as a scoped slot, render fn users would expect it to be present\n  // on this.$slots because the usage is semantically a normal slot.\n  if (fn.proxy) {\n    Object.defineProperty(normalSlots, key, {\n      get: normalized,\n      enumerable: true,\n      configurable: true\n    });\n  }\n  return normalized\n}\n\nfunction proxyNormalSlot(slots, key) {\n  return function () { return slots[key]; }\n}\n\n/*  */\n\n/**\n * Runtime helper for rendering v-for lists.\n */\nfunction renderList (\n  val,\n  render\n) {\n  var ret, i, l, keys, key;\n  if (Array.isArray(val) || typeof val === 'string') {\n    ret = new Array(val.length);\n    for (i = 0, l = val.length; i < l; i++) {\n      ret[i] = render(val[i], i);\n    }\n  } else if (typeof val === 'number') {\n    ret = new Array(val);\n    for (i = 0; i < val; i++) {\n      ret[i] = render(i + 1, i);\n    }\n  } else if (isObject(val)) {\n    if (hasSymbol && val[Symbol.iterator]) {\n      ret = [];\n      var iterator = val[Symbol.iterator]();\n      var result = iterator.next();\n      while (!result.done) {\n        ret.push(render(result.value, ret.length));\n        result = iterator.next();\n      }\n    } else {\n      keys = Object.keys(val);\n      ret = new Array(keys.length);\n      for (i = 0, l = keys.length; i < l; i++) {\n        key = keys[i];\n        ret[i] = render(val[key], key, i);\n      }\n    }\n  }\n  if (!isDef(ret)) {\n    ret = [];\n  }\n  (ret)._isVList = true;\n  return ret\n}\n\n/*  */\n\n/**\n * Runtime helper for rendering <slot>\n */\nfunction renderSlot (\n  name,\n  fallback,\n  props,\n  bindObject\n) {\n  var scopedSlotFn = this.$scopedSlots[name];\n  var nodes;\n  if (scopedSlotFn) { // scoped slot\n    props = props || {};\n    if (bindObject) {\n      if (process.env.NODE_ENV !== 'production' && !isObject(bindObject)) {\n        warn(\n          'slot v-bind without argument expects an Object',\n          this\n        );\n      }\n      props = extend(extend({}, bindObject), props);\n    }\n    nodes = scopedSlotFn(props) || fallback;\n  } else {\n    nodes = this.$slots[name] || fallback;\n  }\n\n  var target = props && props.slot;\n  if (target) {\n    return this.$createElement('template', { slot: target }, nodes)\n  } else {\n    return nodes\n  }\n}\n\n/*  */\n\n/**\n * Runtime helper for resolving filters\n */\nfunction resolveFilter (id) {\n  return resolveAsset(this.$options, 'filters', id, true) || identity\n}\n\n/*  */\n\nfunction isKeyNotMatch (expect, actual) {\n  if (Array.isArray(expect)) {\n    return expect.indexOf(actual) === -1\n  } else {\n    return expect !== actual\n  }\n}\n\n/**\n * Runtime helper for checking keyCodes from config.\n * exposed as Vue.prototype._k\n * passing in eventKeyName as last argument separately for backwards compat\n */\nfunction checkKeyCodes (\n  eventKeyCode,\n  key,\n  builtInKeyCode,\n  eventKeyName,\n  builtInKeyName\n) {\n  var mappedKeyCode = config.keyCodes[key] || builtInKeyCode;\n  if (builtInKeyName && eventKeyName && !config.keyCodes[key]) {\n    return isKeyNotMatch(builtInKeyName, eventKeyName)\n  } else if (mappedKeyCode) {\n    return isKeyNotMatch(mappedKeyCode, eventKeyCode)\n  } else if (eventKeyName) {\n    return hyphenate(eventKeyName) !== key\n  }\n}\n\n/*  */\n\n/**\n * Runtime helper for merging v-bind=\"object\" into a VNode's data.\n */\nfunction bindObjectProps (\n  data,\n  tag,\n  value,\n  asProp,\n  isSync\n) {\n  if (value) {\n    if (!isObject(value)) {\n      process.env.NODE_ENV !== 'production' && warn(\n        'v-bind without argument expects an Object or Array value',\n        this\n      );\n    } else {\n      if (Array.isArray(value)) {\n        value = toObject(value);\n      }\n      var hash;\n      var loop = function ( key ) {\n        if (\n          key === 'class' ||\n          key === 'style' ||\n          isReservedAttribute(key)\n        ) {\n          hash = data;\n        } else {\n          var type = data.attrs && data.attrs.type;\n          hash = asProp || config.mustUseProp(tag, type, key)\n            ? data.domProps || (data.domProps = {})\n            : data.attrs || (data.attrs = {});\n        }\n        var camelizedKey = camelize(key);\n        var hyphenatedKey = hyphenate(key);\n        if (!(camelizedKey in hash) && !(hyphenatedKey in hash)) {\n          hash[key] = value[key];\n\n          if (isSync) {\n            var on = data.on || (data.on = {});\n            on[(\"update:\" + key)] = function ($event) {\n              value[key] = $event;\n            };\n          }\n        }\n      };\n\n      for (var key in value) loop( key );\n    }\n  }\n  return data\n}\n\n/*  */\n\n/**\n * Runtime helper for rendering static trees.\n */\nfunction renderStatic (\n  index,\n  isInFor\n) {\n  var cached = this._staticTrees || (this._staticTrees = []);\n  var tree = cached[index];\n  // if has already-rendered static tree and not inside v-for,\n  // we can reuse the same tree.\n  if (tree && !isInFor) {\n    return tree\n  }\n  // otherwise, render a fresh tree.\n  tree = cached[index] = this.$options.staticRenderFns[index].call(\n    this._renderProxy,\n    null,\n    this // for render fns generated for functional component templates\n  );\n  markStatic(tree, (\"__static__\" + index), false);\n  return tree\n}\n\n/**\n * Runtime helper for v-once.\n * Effectively it means marking the node as static with a unique key.\n */\nfunction markOnce (\n  tree,\n  index,\n  key\n) {\n  markStatic(tree, (\"__once__\" + index + (key ? (\"_\" + key) : \"\")), true);\n  return tree\n}\n\nfunction markStatic (\n  tree,\n  key,\n  isOnce\n) {\n  if (Array.isArray(tree)) {\n    for (var i = 0; i < tree.length; i++) {\n      if (tree[i] && typeof tree[i] !== 'string') {\n        markStaticNode(tree[i], (key + \"_\" + i), isOnce);\n      }\n    }\n  } else {\n    markStaticNode(tree, key, isOnce);\n  }\n}\n\nfunction markStaticNode (node, key, isOnce) {\n  node.isStatic = true;\n  node.key = key;\n  node.isOnce = isOnce;\n}\n\n/*  */\n\nfunction bindObjectListeners (data, value) {\n  if (value) {\n    if (!isPlainObject(value)) {\n      process.env.NODE_ENV !== 'production' && warn(\n        'v-on without argument expects an Object value',\n        this\n      );\n    } else {\n      var on = data.on = data.on ? extend({}, data.on) : {};\n      for (var key in value) {\n        var existing = on[key];\n        var ours = value[key];\n        on[key] = existing ? [].concat(existing, ours) : ours;\n      }\n    }\n  }\n  return data\n}\n\n/*  */\n\nfunction resolveScopedSlots (\n  fns, // see flow/vnode\n  res,\n  // the following are added in 2.6\n  hasDynamicKeys,\n  contentHashKey\n) {\n  res = res || { $stable: !hasDynamicKeys };\n  for (var i = 0; i < fns.length; i++) {\n    var slot = fns[i];\n    if (Array.isArray(slot)) {\n      resolveScopedSlots(slot, res, hasDynamicKeys);\n    } else if (slot) {\n      // marker for reverse proxying v-slot without scope on this.$slots\n      if (slot.proxy) {\n        slot.fn.proxy = true;\n      }\n      res[slot.key] = slot.fn;\n    }\n  }\n  if (contentHashKey) {\n    (res).$key = contentHashKey;\n  }\n  return res\n}\n\n/*  */\n\nfunction bindDynamicKeys (baseObj, values) {\n  for (var i = 0; i < values.length; i += 2) {\n    var key = values[i];\n    if (typeof key === 'string' && key) {\n      baseObj[values[i]] = values[i + 1];\n    } else if (process.env.NODE_ENV !== 'production' && key !== '' && key !== null) {\n      // null is a special value for explicitly removing a binding\n      warn(\n        (\"Invalid value for dynamic directive argument (expected string or null): \" + key),\n        this\n      );\n    }\n  }\n  return baseObj\n}\n\n// helper to dynamically append modifier runtime markers to event names.\n// ensure only append when value is already string, otherwise it will be cast\n// to string and cause the type check to miss.\nfunction prependModifier (value, symbol) {\n  return typeof value === 'string' ? symbol + value : value\n}\n\n/*  */\n\nfunction installRenderHelpers (target) {\n  target._o = markOnce;\n  target._n = toNumber;\n  target._s = toString;\n  target._l = renderList;\n  target._t = renderSlot;\n  target._q = looseEqual;\n  target._i = looseIndexOf;\n  target._m = renderStatic;\n  target._f = resolveFilter;\n  target._k = checkKeyCodes;\n  target._b = bindObjectProps;\n  target._v = createTextVNode;\n  target._e = createEmptyVNode;\n  target._u = resolveScopedSlots;\n  target._g = bindObjectListeners;\n  target._d = bindDynamicKeys;\n  target._p = prependModifier;\n}\n\n/*  */\n\nfunction FunctionalRenderContext (\n  data,\n  props,\n  children,\n  parent,\n  Ctor\n) {\n  var this$1 = this;\n\n  var options = Ctor.options;\n  // ensure the createElement function in functional components\n  // gets a unique context - this is necessary for correct named slot check\n  var contextVm;\n  if (hasOwn(parent, '_uid')) {\n    contextVm = Object.create(parent);\n    // $flow-disable-line\n    contextVm._original = parent;\n  } else {\n    // the context vm passed in is a functional context as well.\n    // in this case we want to make sure we are able to get a hold to the\n    // real context instance.\n    contextVm = parent;\n    // $flow-disable-line\n    parent = parent._original;\n  }\n  var isCompiled = isTrue(options._compiled);\n  var needNormalization = !isCompiled;\n\n  this.data = data;\n  this.props = props;\n  this.children = children;\n  this.parent = parent;\n  this.listeners = data.on || emptyObject;\n  this.injections = resolveInject(options.inject, parent);\n  this.slots = function () {\n    if (!this$1.$slots) {\n      normalizeScopedSlots(\n        data.scopedSlots,\n        this$1.$slots = resolveSlots(children, parent)\n      );\n    }\n    return this$1.$slots\n  };\n\n  Object.defineProperty(this, 'scopedSlots', ({\n    enumerable: true,\n    get: function get () {\n      return normalizeScopedSlots(data.scopedSlots, this.slots())\n    }\n  }));\n\n  // support for compiled functional template\n  if (isCompiled) {\n    // exposing $options for renderStatic()\n    this.$options = options;\n    // pre-resolve slots for renderSlot()\n    this.$slots = this.slots();\n    this.$scopedSlots = normalizeScopedSlots(data.scopedSlots, this.$slots);\n  }\n\n  if (options._scopeId) {\n    this._c = function (a, b, c, d) {\n      var vnode = createElement(contextVm, a, b, c, d, needNormalization);\n      if (vnode && !Array.isArray(vnode)) {\n        vnode.fnScopeId = options._scopeId;\n        vnode.fnContext = parent;\n      }\n      return vnode\n    };\n  } else {\n    this._c = function (a, b, c, d) { return createElement(contextVm, a, b, c, d, needNormalization); };\n  }\n}\n\ninstallRenderHelpers(FunctionalRenderContext.prototype);\n\nfunction createFunctionalComponent (\n  Ctor,\n  propsData,\n  data,\n  contextVm,\n  children\n) {\n  var options = Ctor.options;\n  var props = {};\n  var propOptions = options.props;\n  if (isDef(propOptions)) {\n    for (var key in propOptions) {\n      props[key] = validateProp(key, propOptions, propsData || emptyObject);\n    }\n  } else {\n    if (isDef(data.attrs)) { mergeProps(props, data.attrs); }\n    if (isDef(data.props)) { mergeProps(props, data.props); }\n  }\n\n  var renderContext = new FunctionalRenderContext(\n    data,\n    props,\n    children,\n    contextVm,\n    Ctor\n  );\n\n  var vnode = options.render.call(null, renderContext._c, renderContext);\n\n  if (vnode instanceof VNode) {\n    return cloneAndMarkFunctionalResult(vnode, data, renderContext.parent, options, renderContext)\n  } else if (Array.isArray(vnode)) {\n    var vnodes = normalizeChildren(vnode) || [];\n    var res = new Array(vnodes.length);\n    for (var i = 0; i < vnodes.length; i++) {\n      res[i] = cloneAndMarkFunctionalResult(vnodes[i], data, renderContext.parent, options, renderContext);\n    }\n    return res\n  }\n}\n\nfunction cloneAndMarkFunctionalResult (vnode, data, contextVm, options, renderContext) {\n  // #7817 clone node before setting fnContext, otherwise if the node is reused\n  // (e.g. it was from a cached normal slot) the fnContext causes named slots\n  // that should not be matched to match.\n  var clone = cloneVNode(vnode);\n  clone.fnContext = contextVm;\n  clone.fnOptions = options;\n  if (process.env.NODE_ENV !== 'production') {\n    (clone.devtoolsMeta = clone.devtoolsMeta || {}).renderContext = renderContext;\n  }\n  if (data.slot) {\n    (clone.data || (clone.data = {})).slot = data.slot;\n  }\n  return clone\n}\n\nfunction mergeProps (to, from) {\n  for (var key in from) {\n    to[camelize(key)] = from[key];\n  }\n}\n\n/*  */\n\n/*  */\n\n/*  */\n\n/*  */\n\n// inline hooks to be invoked on component VNodes during patch\nvar componentVNodeHooks = {\n  init: function init (vnode, hydrating) {\n    if (\n      vnode.componentInstance &&\n      !vnode.componentInstance._isDestroyed &&\n      vnode.data.keepAlive\n    ) {\n      // kept-alive components, treat as a patch\n      var mountedNode = vnode; // work around flow\n      componentVNodeHooks.prepatch(mountedNode, mountedNode);\n    } else {\n      var child = vnode.componentInstance = createComponentInstanceForVnode(\n        vnode,\n        activeInstance\n      );\n      child.$mount(hydrating ? vnode.elm : undefined, hydrating);\n    }\n  },\n\n  prepatch: function prepatch (oldVnode, vnode) {\n    var options = vnode.componentOptions;\n    var child = vnode.componentInstance = oldVnode.componentInstance;\n    updateChildComponent(\n      child,\n      options.propsData, // updated props\n      options.listeners, // updated listeners\n      vnode, // new parent vnode\n      options.children // new children\n    );\n  },\n\n  insert: function insert (vnode) {\n    var context = vnode.context;\n    var componentInstance = vnode.componentInstance;\n    if (!componentInstance._isMounted) {\n      componentInstance._isMounted = true;\n      callHook(componentInstance, 'mounted');\n    }\n    if (vnode.data.keepAlive) {\n      if (context._isMounted) {\n        // vue-router#1212\n        // During updates, a kept-alive component's child components may\n        // change, so directly walking the tree here may call activated hooks\n        // on incorrect children. Instead we push them into a queue which will\n        // be processed after the whole patch process ended.\n        queueActivatedComponent(componentInstance);\n      } else {\n        activateChildComponent(componentInstance, true /* direct */);\n      }\n    }\n  },\n\n  destroy: function destroy (vnode) {\n    var componentInstance = vnode.componentInstance;\n    if (!componentInstance._isDestroyed) {\n      if (!vnode.data.keepAlive) {\n        componentInstance.$destroy();\n      } else {\n        deactivateChildComponent(componentInstance, true /* direct */);\n      }\n    }\n  }\n};\n\nvar hooksToMerge = Object.keys(componentVNodeHooks);\n\nfunction createComponent (\n  Ctor,\n  data,\n  context,\n  children,\n  tag\n) {\n  if (isUndef(Ctor)) {\n    return\n  }\n\n  var baseCtor = context.$options._base;\n\n  // plain options object: turn it into a constructor\n  if (isObject(Ctor)) {\n    Ctor = baseCtor.extend(Ctor);\n  }\n\n  // if at this stage it's not a constructor or an async component factory,\n  // reject.\n  if (typeof Ctor !== 'function') {\n    if (process.env.NODE_ENV !== 'production') {\n      warn((\"Invalid Component definition: \" + (String(Ctor))), context);\n    }\n    return\n  }\n\n  // async component\n  var asyncFactory;\n  if (isUndef(Ctor.cid)) {\n    asyncFactory = Ctor;\n    Ctor = resolveAsyncComponent(asyncFactory, baseCtor);\n    if (Ctor === undefined) {\n      // return a placeholder node for async component, which is rendered\n      // as a comment node but preserves all the raw information for the node.\n      // the information will be used for async server-rendering and hydration.\n      return createAsyncPlaceholder(\n        asyncFactory,\n        data,\n        context,\n        children,\n        tag\n      )\n    }\n  }\n\n  data = data || {};\n\n  // resolve constructor options in case global mixins are applied after\n  // component constructor creation\n  resolveConstructorOptions(Ctor);\n\n  // transform component v-model data into props & events\n  if (isDef(data.model)) {\n    transformModel(Ctor.options, data);\n  }\n\n  // extract props\n  var propsData = extractPropsFromVNodeData(data, Ctor, tag);\n\n  // functional component\n  if (isTrue(Ctor.options.functional)) {\n    return createFunctionalComponent(Ctor, propsData, data, context, children)\n  }\n\n  // extract listeners, since these needs to be treated as\n  // child component listeners instead of DOM listeners\n  var listeners = data.on;\n  // replace with listeners with .native modifier\n  // so it gets processed during parent component patch.\n  data.on = data.nativeOn;\n\n  if (isTrue(Ctor.options.abstract)) {\n    // abstract components do not keep anything\n    // other than props & listeners & slot\n\n    // work around flow\n    var slot = data.slot;\n    data = {};\n    if (slot) {\n      data.slot = slot;\n    }\n  }\n\n  // install component management hooks onto the placeholder node\n  installComponentHooks(data);\n\n  // return a placeholder vnode\n  var name = Ctor.options.name || tag;\n  var vnode = new VNode(\n    (\"vue-component-\" + (Ctor.cid) + (name ? (\"-\" + name) : '')),\n    data, undefined, undefined, undefined, context,\n    { Ctor: Ctor, propsData: propsData, listeners: listeners, tag: tag, children: children },\n    asyncFactory\n  );\n\n  return vnode\n}\n\nfunction createComponentInstanceForVnode (\n  vnode, // we know it's MountedComponentVNode but flow doesn't\n  parent // activeInstance in lifecycle state\n) {\n  var options = {\n    _isComponent: true,\n    _parentVnode: vnode,\n    parent: parent\n  };\n  // check inline-template render functions\n  var inlineTemplate = vnode.data.inlineTemplate;\n  if (isDef(inlineTemplate)) {\n    options.render = inlineTemplate.render;\n    options.staticRenderFns = inlineTemplate.staticRenderFns;\n  }\n  return new vnode.componentOptions.Ctor(options)\n}\n\nfunction installComponentHooks (data) {\n  var hooks = data.hook || (data.hook = {});\n  for (var i = 0; i < hooksToMerge.length; i++) {\n    var key = hooksToMerge[i];\n    var existing = hooks[key];\n    var toMerge = componentVNodeHooks[key];\n    if (existing !== toMerge && !(existing && existing._merged)) {\n      hooks[key] = existing ? mergeHook$1(toMerge, existing) : toMerge;\n    }\n  }\n}\n\nfunction mergeHook$1 (f1, f2) {\n  var merged = function (a, b) {\n    // flow complains about extra args which is why we use any\n    f1(a, b);\n    f2(a, b);\n  };\n  merged._merged = true;\n  return merged\n}\n\n// transform component v-model info (value and callback) into\n// prop and event handler respectively.\nfunction transformModel (options, data) {\n  var prop = (options.model && options.model.prop) || 'value';\n  var event = (options.model && options.model.event) || 'input'\n  ;(data.attrs || (data.attrs = {}))[prop] = data.model.value;\n  var on = data.on || (data.on = {});\n  var existing = on[event];\n  var callback = data.model.callback;\n  if (isDef(existing)) {\n    if (\n      Array.isArray(existing)\n        ? existing.indexOf(callback) === -1\n        : existing !== callback\n    ) {\n      on[event] = [callback].concat(existing);\n    }\n  } else {\n    on[event] = callback;\n  }\n}\n\n/*  */\n\nvar SIMPLE_NORMALIZE = 1;\nvar ALWAYS_NORMALIZE = 2;\n\n// wrapper function for providing a more flexible interface\n// without getting yelled at by flow\nfunction createElement (\n  context,\n  tag,\n  data,\n  children,\n  normalizationType,\n  alwaysNormalize\n) {\n  if (Array.isArray(data) || isPrimitive(data)) {\n    normalizationType = children;\n    children = data;\n    data = undefined;\n  }\n  if (isTrue(alwaysNormalize)) {\n    normalizationType = ALWAYS_NORMALIZE;\n  }\n  return _createElement(context, tag, data, children, normalizationType)\n}\n\nfunction _createElement (\n  context,\n  tag,\n  data,\n  children,\n  normalizationType\n) {\n  if (isDef(data) && isDef((data).__ob__)) {\n    process.env.NODE_ENV !== 'production' && warn(\n      \"Avoid using observed data object as vnode data: \" + (JSON.stringify(data)) + \"\\n\" +\n      'Always create fresh vnode data objects in each render!',\n      context\n    );\n    return createEmptyVNode()\n  }\n  // object syntax in v-bind\n  if (isDef(data) && isDef(data.is)) {\n    tag = data.is;\n  }\n  if (!tag) {\n    // in case of component :is set to falsy value\n    return createEmptyVNode()\n  }\n  // warn against non-primitive key\n  if (process.env.NODE_ENV !== 'production' &&\n    isDef(data) && isDef(data.key) && !isPrimitive(data.key)\n  ) {\n    {\n      warn(\n        'Avoid using non-primitive value as key, ' +\n        'use string/number value instead.',\n        context\n      );\n    }\n  }\n  // support single function children as default scoped slot\n  if (Array.isArray(children) &&\n    typeof children[0] === 'function'\n  ) {\n    data = data || {};\n    data.scopedSlots = { default: children[0] };\n    children.length = 0;\n  }\n  if (normalizationType === ALWAYS_NORMALIZE) {\n    children = normalizeChildren(children);\n  } else if (normalizationType === SIMPLE_NORMALIZE) {\n    children = simpleNormalizeChildren(children);\n  }\n  var vnode, ns;\n  if (typeof tag === 'string') {\n    var Ctor;\n    ns = (context.$vnode && context.$vnode.ns) || config.getTagNamespace(tag);\n    if (config.isReservedTag(tag)) {\n      // platform built-in elements\n      if (process.env.NODE_ENV !== 'production' && isDef(data) && isDef(data.nativeOn)) {\n        warn(\n          (\"The .native modifier for v-on is only valid on components but it was used on <\" + tag + \">.\"),\n          context\n        );\n      }\n      vnode = new VNode(\n        config.parsePlatformTagName(tag), data, children,\n        undefined, undefined, context\n      );\n    } else if ((!data || !data.pre) && isDef(Ctor = resolveAsset(context.$options, 'components', tag))) {\n      // component\n      vnode = createComponent(Ctor, data, context, children, tag);\n    } else {\n      // unknown or unlisted namespaced elements\n      // check at runtime because it may get assigned a namespace when its\n      // parent normalizes children\n      vnode = new VNode(\n        tag, data, children,\n        undefined, undefined, context\n      );\n    }\n  } else {\n    // direct component options / constructor\n    vnode = createComponent(tag, data, context, children);\n  }\n  if (Array.isArray(vnode)) {\n    return vnode\n  } else if (isDef(vnode)) {\n    if (isDef(ns)) { applyNS(vnode, ns); }\n    if (isDef(data)) { registerDeepBindings(data); }\n    return vnode\n  } else {\n    return createEmptyVNode()\n  }\n}\n\nfunction applyNS (vnode, ns, force) {\n  vnode.ns = ns;\n  if (vnode.tag === 'foreignObject') {\n    // use default namespace inside foreignObject\n    ns = undefined;\n    force = true;\n  }\n  if (isDef(vnode.children)) {\n    for (var i = 0, l = vnode.children.length; i < l; i++) {\n      var child = vnode.children[i];\n      if (isDef(child.tag) && (\n        isUndef(child.ns) || (isTrue(force) && child.tag !== 'svg'))) {\n        applyNS(child, ns, force);\n      }\n    }\n  }\n}\n\n// ref #5318\n// necessary to ensure parent re-render when deep bindings like :style and\n// :class are used on slot nodes\nfunction registerDeepBindings (data) {\n  if (isObject(data.style)) {\n    traverse(data.style);\n  }\n  if (isObject(data.class)) {\n    traverse(data.class);\n  }\n}\n\n/*  */\n\nfunction initRender (vm) {\n  vm._vnode = null; // the root of the child tree\n  vm._staticTrees = null; // v-once cached trees\n  var options = vm.$options;\n  var parentVnode = vm.$vnode = options._parentVnode; // the placeholder node in parent tree\n  var renderContext = parentVnode && parentVnode.context;\n  vm.$slots = resolveSlots(options._renderChildren, renderContext);\n  vm.$scopedSlots = emptyObject;\n  // bind the createElement fn to this instance\n  // so that we get proper render context inside it.\n  // args order: tag, data, children, normalizationType, alwaysNormalize\n  // internal version is used by render functions compiled from templates\n  vm._c = function (a, b, c, d) { return createElement(vm, a, b, c, d, false); };\n  // normalization is always applied for the public version, used in\n  // user-written render functions.\n  vm.$createElement = function (a, b, c, d) { return createElement(vm, a, b, c, d, true); };\n\n  // $attrs & $listeners are exposed for easier HOC creation.\n  // they need to be reactive so that HOCs using them are always updated\n  var parentData = parentVnode && parentVnode.data;\n\n  /* istanbul ignore else */\n  if (process.env.NODE_ENV !== 'production') {\n    defineReactive$$1(vm, '$attrs', parentData && parentData.attrs || emptyObject, function () {\n      !isUpdatingChildComponent && warn(\"$attrs is readonly.\", vm);\n    }, true);\n    defineReactive$$1(vm, '$listeners', options._parentListeners || emptyObject, function () {\n      !isUpdatingChildComponent && warn(\"$listeners is readonly.\", vm);\n    }, true);\n  } else {\n    defineReactive$$1(vm, '$attrs', parentData && parentData.attrs || emptyObject, null, true);\n    defineReactive$$1(vm, '$listeners', options._parentListeners || emptyObject, null, true);\n  }\n}\n\nvar currentRenderingInstance = null;\n\nfunction renderMixin (Vue) {\n  // install runtime convenience helpers\n  installRenderHelpers(Vue.prototype);\n\n  Vue.prototype.$nextTick = function (fn) {\n    return nextTick(fn, this)\n  };\n\n  Vue.prototype._render = function () {\n    var vm = this;\n    var ref = vm.$options;\n    var render = ref.render;\n    var _parentVnode = ref._parentVnode;\n\n    if (_parentVnode) {\n      vm.$scopedSlots = normalizeScopedSlots(\n        _parentVnode.data.scopedSlots,\n        vm.$slots,\n        vm.$scopedSlots\n      );\n    }\n\n    // set parent vnode. this allows render functions to have access\n    // to the data on the placeholder node.\n    vm.$vnode = _parentVnode;\n    // render self\n    var vnode;\n    try {\n      // There's no need to maintain a stack because all render fns are called\n      // separately from one another. Nested component's render fns are called\n      // when parent component is patched.\n      currentRenderingInstance = vm;\n      vnode = render.call(vm._renderProxy, vm.$createElement);\n    } catch (e) {\n      handleError(e, vm, \"render\");\n      // return error render result,\n      // or previous vnode to prevent render error causing blank component\n      /* istanbul ignore else */\n      if (process.env.NODE_ENV !== 'production' && vm.$options.renderError) {\n        try {\n          vnode = vm.$options.renderError.call(vm._renderProxy, vm.$createElement, e);\n        } catch (e) {\n          handleError(e, vm, \"renderError\");\n          vnode = vm._vnode;\n        }\n      } else {\n        vnode = vm._vnode;\n      }\n    } finally {\n      currentRenderingInstance = null;\n    }\n    // if the returned array contains only a single node, allow it\n    if (Array.isArray(vnode) && vnode.length === 1) {\n      vnode = vnode[0];\n    }\n    // return empty vnode in case the render function errored out\n    if (!(vnode instanceof VNode)) {\n      if (process.env.NODE_ENV !== 'production' && Array.isArray(vnode)) {\n        warn(\n          'Multiple root nodes returned from render function. Render function ' +\n          'should return a single root node.',\n          vm\n        );\n      }\n      vnode = createEmptyVNode();\n    }\n    // set parent\n    vnode.parent = _parentVnode;\n    return vnode\n  };\n}\n\n/*  */\n\nfunction ensureCtor (comp, base) {\n  if (\n    comp.__esModule ||\n    (hasSymbol && comp[Symbol.toStringTag] === 'Module')\n  ) {\n    comp = comp.default;\n  }\n  return isObject(comp)\n    ? base.extend(comp)\n    : comp\n}\n\nfunction createAsyncPlaceholder (\n  factory,\n  data,\n  context,\n  children,\n  tag\n) {\n  var node = createEmptyVNode();\n  node.asyncFactory = factory;\n  node.asyncMeta = { data: data, context: context, children: children, tag: tag };\n  return node\n}\n\nfunction resolveAsyncComponent (\n  factory,\n  baseCtor\n) {\n  if (isTrue(factory.error) && isDef(factory.errorComp)) {\n    return factory.errorComp\n  }\n\n  if (isDef(factory.resolved)) {\n    return factory.resolved\n  }\n\n  var owner = currentRenderingInstance;\n  if (owner && isDef(factory.owners) && factory.owners.indexOf(owner) === -1) {\n    // already pending\n    factory.owners.push(owner);\n  }\n\n  if (isTrue(factory.loading) && isDef(factory.loadingComp)) {\n    return factory.loadingComp\n  }\n\n  if (owner && !isDef(factory.owners)) {\n    var owners = factory.owners = [owner];\n    var sync = true;\n    var timerLoading = null;\n    var timerTimeout = null\n\n    ;(owner).$on('hook:destroyed', function () { return remove(owners, owner); });\n\n    var forceRender = function (renderCompleted) {\n      for (var i = 0, l = owners.length; i < l; i++) {\n        (owners[i]).$forceUpdate();\n      }\n\n      if (renderCompleted) {\n        owners.length = 0;\n        if (timerLoading !== null) {\n          clearTimeout(timerLoading);\n          timerLoading = null;\n        }\n        if (timerTimeout !== null) {\n          clearTimeout(timerTimeout);\n          timerTimeout = null;\n        }\n      }\n    };\n\n    var resolve = once(function (res) {\n      // cache resolved\n      factory.resolved = ensureCtor(res, baseCtor);\n      // invoke callbacks only if this is not a synchronous resolve\n      // (async resolves are shimmed as synchronous during SSR)\n      if (!sync) {\n        forceRender(true);\n      } else {\n        owners.length = 0;\n      }\n    });\n\n    var reject = once(function (reason) {\n      process.env.NODE_ENV !== 'production' && warn(\n        \"Failed to resolve async component: \" + (String(factory)) +\n        (reason ? (\"\\nReason: \" + reason) : '')\n      );\n      if (isDef(factory.errorComp)) {\n        factory.error = true;\n        forceRender(true);\n      }\n    });\n\n    var res = factory(resolve, reject);\n\n    if (isObject(res)) {\n      if (isPromise(res)) {\n        // () => Promise\n        if (isUndef(factory.resolved)) {\n          res.then(resolve, reject);\n        }\n      } else if (isPromise(res.component)) {\n        res.component.then(resolve, reject);\n\n        if (isDef(res.error)) {\n          factory.errorComp = ensureCtor(res.error, baseCtor);\n        }\n\n        if (isDef(res.loading)) {\n          factory.loadingComp = ensureCtor(res.loading, baseCtor);\n          if (res.delay === 0) {\n            factory.loading = true;\n          } else {\n            timerLoading = setTimeout(function () {\n              timerLoading = null;\n              if (isUndef(factory.resolved) && isUndef(factory.error)) {\n                factory.loading = true;\n                forceRender(false);\n              }\n            }, res.delay || 200);\n          }\n        }\n\n        if (isDef(res.timeout)) {\n          timerTimeout = setTimeout(function () {\n            timerTimeout = null;\n            if (isUndef(factory.resolved)) {\n              reject(\n                process.env.NODE_ENV !== 'production'\n                  ? (\"timeout (\" + (res.timeout) + \"ms)\")\n                  : null\n              );\n            }\n          }, res.timeout);\n        }\n      }\n    }\n\n    sync = false;\n    // return in case resolved synchronously\n    return factory.loading\n      ? factory.loadingComp\n      : factory.resolved\n  }\n}\n\n/*  */\n\nfunction isAsyncPlaceholder (node) {\n  return node.isComment && node.asyncFactory\n}\n\n/*  */\n\nfunction getFirstComponentChild (children) {\n  if (Array.isArray(children)) {\n    for (var i = 0; i < children.length; i++) {\n      var c = children[i];\n      if (isDef(c) && (isDef(c.componentOptions) || isAsyncPlaceholder(c))) {\n        return c\n      }\n    }\n  }\n}\n\n/*  */\n\n/*  */\n\nfunction initEvents (vm) {\n  vm._events = Object.create(null);\n  vm._hasHookEvent = false;\n  // init parent attached events\n  var listeners = vm.$options._parentListeners;\n  if (listeners) {\n    updateComponentListeners(vm, listeners);\n  }\n}\n\nvar target;\n\nfunction add (event, fn) {\n  target.$on(event, fn);\n}\n\nfunction remove$1 (event, fn) {\n  target.$off(event, fn);\n}\n\nfunction createOnceHandler (event, fn) {\n  var _target = target;\n  return function onceHandler () {\n    var res = fn.apply(null, arguments);\n    if (res !== null) {\n      _target.$off(event, onceHandler);\n    }\n  }\n}\n\nfunction updateComponentListeners (\n  vm,\n  listeners,\n  oldListeners\n) {\n  target = vm;\n  updateListeners(listeners, oldListeners || {}, add, remove$1, createOnceHandler, vm);\n  target = undefined;\n}\n\nfunction eventsMixin (Vue) {\n  var hookRE = /^hook:/;\n  Vue.prototype.$on = function (event, fn) {\n    var vm = this;\n    if (Array.isArray(event)) {\n      for (var i = 0, l = event.length; i < l; i++) {\n        vm.$on(event[i], fn);\n      }\n    } else {\n      (vm._events[event] || (vm._events[event] = [])).push(fn);\n      // optimize hook:event cost by using a boolean flag marked at registration\n      // instead of a hash lookup\n      if (hookRE.test(event)) {\n        vm._hasHookEvent = true;\n      }\n    }\n    return vm\n  };\n\n  Vue.prototype.$once = function (event, fn) {\n    var vm = this;\n    function on () {\n      vm.$off(event, on);\n      fn.apply(vm, arguments);\n    }\n    on.fn = fn;\n    vm.$on(event, on);\n    return vm\n  };\n\n  Vue.prototype.$off = function (event, fn) {\n    var vm = this;\n    // all\n    if (!arguments.length) {\n      vm._events = Object.create(null);\n      return vm\n    }\n    // array of events\n    if (Array.isArray(event)) {\n      for (var i$1 = 0, l = event.length; i$1 < l; i$1++) {\n        vm.$off(event[i$1], fn);\n      }\n      return vm\n    }\n    // specific event\n    var cbs = vm._events[event];\n    if (!cbs) {\n      return vm\n    }\n    if (!fn) {\n      vm._events[event] = null;\n      return vm\n    }\n    // specific handler\n    var cb;\n    var i = cbs.length;\n    while (i--) {\n      cb = cbs[i];\n      if (cb === fn || cb.fn === fn) {\n        cbs.splice(i, 1);\n        break\n      }\n    }\n    return vm\n  };\n\n  Vue.prototype.$emit = function (event) {\n    var vm = this;\n    if (process.env.NODE_ENV !== 'production') {\n      var lowerCaseEvent = event.toLowerCase();\n      if (lowerCaseEvent !== event && vm._events[lowerCaseEvent]) {\n        tip(\n          \"Event \\\"\" + lowerCaseEvent + \"\\\" is emitted in component \" +\n          (formatComponentName(vm)) + \" but the handler is registered for \\\"\" + event + \"\\\". \" +\n          \"Note that HTML attributes are case-insensitive and you cannot use \" +\n          \"v-on to listen to camelCase events when using in-DOM templates. \" +\n          \"You should probably use \\\"\" + (hyphenate(event)) + \"\\\" instead of \\\"\" + event + \"\\\".\"\n        );\n      }\n    }\n    var cbs = vm._events[event];\n    if (cbs) {\n      cbs = cbs.length > 1 ? toArray(cbs) : cbs;\n      var args = toArray(arguments, 1);\n      var info = \"event handler for \\\"\" + event + \"\\\"\";\n      for (var i = 0, l = cbs.length; i < l; i++) {\n        invokeWithErrorHandling(cbs[i], vm, args, vm, info);\n      }\n    }\n    return vm\n  };\n}\n\n/*  */\n\nvar activeInstance = null;\nvar isUpdatingChildComponent = false;\n\nfunction setActiveInstance(vm) {\n  var prevActiveInstance = activeInstance;\n  activeInstance = vm;\n  return function () {\n    activeInstance = prevActiveInstance;\n  }\n}\n\nfunction initLifecycle (vm) {\n  var options = vm.$options;\n\n  // locate first non-abstract parent\n  var parent = options.parent;\n  if (parent && !options.abstract) {\n    while (parent.$options.abstract && parent.$parent) {\n      parent = parent.$parent;\n    }\n    parent.$children.push(vm);\n  }\n\n  vm.$parent = parent;\n  vm.$root = parent ? parent.$root : vm;\n\n  vm.$children = [];\n  vm.$refs = {};\n\n  vm._watcher = null;\n  vm._inactive = null;\n  vm._directInactive = false;\n  vm._isMounted = false;\n  vm._isDestroyed = false;\n  vm._isBeingDestroyed = false;\n}\n\nfunction lifecycleMixin (Vue) {\n  Vue.prototype._update = function (vnode, hydrating) {\n    var vm = this;\n    var prevEl = vm.$el;\n    var prevVnode = vm._vnode;\n    var restoreActiveInstance = setActiveInstance(vm);\n    vm._vnode = vnode;\n    // Vue.prototype.__patch__ is injected in entry points\n    // based on the rendering backend used.\n    if (!prevVnode) {\n      // initial render\n      vm.$el = vm.__patch__(vm.$el, vnode, hydrating, false /* removeOnly */);\n    } else {\n      // updates\n      vm.$el = vm.__patch__(prevVnode, vnode);\n    }\n    restoreActiveInstance();\n    // update __vue__ reference\n    if (prevEl) {\n      prevEl.__vue__ = null;\n    }\n    if (vm.$el) {\n      vm.$el.__vue__ = vm;\n    }\n    // if parent is an HOC, update its $el as well\n    if (vm.$vnode && vm.$parent && vm.$vnode === vm.$parent._vnode) {\n      vm.$parent.$el = vm.$el;\n    }\n    // updated hook is called by the scheduler to ensure that children are\n    // updated in a parent's updated hook.\n  };\n\n  Vue.prototype.$forceUpdate = function () {\n    var vm = this;\n    if (vm._watcher) {\n      vm._watcher.update();\n    }\n  };\n\n  Vue.prototype.$destroy = function () {\n    var vm = this;\n    if (vm._isBeingDestroyed) {\n      return\n    }\n    callHook(vm, 'beforeDestroy');\n    vm._isBeingDestroyed = true;\n    // remove self from parent\n    var parent = vm.$parent;\n    if (parent && !parent._isBeingDestroyed && !vm.$options.abstract) {\n      remove(parent.$children, vm);\n    }\n    // teardown watchers\n    if (vm._watcher) {\n      vm._watcher.teardown();\n    }\n    var i = vm._watchers.length;\n    while (i--) {\n      vm._watchers[i].teardown();\n    }\n    // remove reference from data ob\n    // frozen object may not have observer.\n    if (vm._data.__ob__) {\n      vm._data.__ob__.vmCount--;\n    }\n    // call the last hook...\n    vm._isDestroyed = true;\n    // invoke destroy hooks on current rendered tree\n    vm.__patch__(vm._vnode, null);\n    // fire destroyed hook\n    callHook(vm, 'destroyed');\n    // turn off all instance listeners.\n    vm.$off();\n    // remove __vue__ reference\n    if (vm.$el) {\n      vm.$el.__vue__ = null;\n    }\n    // release circular reference (#6759)\n    if (vm.$vnode) {\n      vm.$vnode.parent = null;\n    }\n  };\n}\n\nfunction mountComponent (\n  vm,\n  el,\n  hydrating\n) {\n  vm.$el = el;\n  if (!vm.$options.render) {\n    vm.$options.render = createEmptyVNode;\n    if (process.env.NODE_ENV !== 'production') {\n      /* istanbul ignore if */\n      if ((vm.$options.template && vm.$options.template.charAt(0) !== '#') ||\n        vm.$options.el || el) {\n        warn(\n          'You are using the runtime-only build of Vue where the template ' +\n          'compiler is not available. Either pre-compile the templates into ' +\n          'render functions, or use the compiler-included build.',\n          vm\n        );\n      } else {\n        warn(\n          'Failed to mount component: template or render function not defined.',\n          vm\n        );\n      }\n    }\n  }\n  callHook(vm, 'beforeMount');\n\n  var updateComponent;\n  /* istanbul ignore if */\n  if (process.env.NODE_ENV !== 'production' && config.performance && mark) {\n    updateComponent = function () {\n      var name = vm._name;\n      var id = vm._uid;\n      var startTag = \"vue-perf-start:\" + id;\n      var endTag = \"vue-perf-end:\" + id;\n\n      mark(startTag);\n      var vnode = vm._render();\n      mark(endTag);\n      measure((\"vue \" + name + \" render\"), startTag, endTag);\n\n      mark(startTag);\n      vm._update(vnode, hydrating);\n      mark(endTag);\n      measure((\"vue \" + name + \" patch\"), startTag, endTag);\n    };\n  } else {\n    updateComponent = function () {\n      vm._update(vm._render(), hydrating);\n    };\n  }\n\n  // we set this to vm._watcher inside the watcher's constructor\n  // since the watcher's initial patch may call $forceUpdate (e.g. inside child\n  // component's mounted hook), which relies on vm._watcher being already defined\n  new Watcher(vm, updateComponent, noop, {\n    before: function before () {\n      if (vm._isMounted && !vm._isDestroyed) {\n        callHook(vm, 'beforeUpdate');\n      }\n    }\n  }, true /* isRenderWatcher */);\n  hydrating = false;\n\n  // manually mounted instance, call mounted on self\n  // mounted is called for render-created child components in its inserted hook\n  if (vm.$vnode == null) {\n    vm._isMounted = true;\n    callHook(vm, 'mounted');\n  }\n  return vm\n}\n\nfunction updateChildComponent (\n  vm,\n  propsData,\n  listeners,\n  parentVnode,\n  renderChildren\n) {\n  if (process.env.NODE_ENV !== 'production') {\n    isUpdatingChildComponent = true;\n  }\n\n  // determine whether component has slot children\n  // we need to do this before overwriting $options._renderChildren.\n\n  // check if there are dynamic scopedSlots (hand-written or compiled but with\n  // dynamic slot names). Static scoped slots compiled from template has the\n  // \"$stable\" marker.\n  var newScopedSlots = parentVnode.data.scopedSlots;\n  var oldScopedSlots = vm.$scopedSlots;\n  var hasDynamicScopedSlot = !!(\n    (newScopedSlots && !newScopedSlots.$stable) ||\n    (oldScopedSlots !== emptyObject && !oldScopedSlots.$stable) ||\n    (newScopedSlots && vm.$scopedSlots.$key !== newScopedSlots.$key)\n  );\n\n  // Any static slot children from the parent may have changed during parent's\n  // update. Dynamic scoped slots may also have changed. In such cases, a forced\n  // update is necessary to ensure correctness.\n  var needsForceUpdate = !!(\n    renderChildren ||               // has new static slots\n    vm.$options._renderChildren ||  // has old static slots\n    hasDynamicScopedSlot\n  );\n\n  vm.$options._parentVnode = parentVnode;\n  vm.$vnode = parentVnode; // update vm's placeholder node without re-render\n\n  if (vm._vnode) { // update child tree's parent\n    vm._vnode.parent = parentVnode;\n  }\n  vm.$options._renderChildren = renderChildren;\n\n  // update $attrs and $listeners hash\n  // these are also reactive so they may trigger child update if the child\n  // used them during render\n  vm.$attrs = parentVnode.data.attrs || emptyObject;\n  vm.$listeners = listeners || emptyObject;\n\n  // update props\n  if (propsData && vm.$options.props) {\n    toggleObserving(false);\n    var props = vm._props;\n    var propKeys = vm.$options._propKeys || [];\n    for (var i = 0; i < propKeys.length; i++) {\n      var key = propKeys[i];\n      var propOptions = vm.$options.props; // wtf flow?\n      props[key] = validateProp(key, propOptions, propsData, vm);\n    }\n    toggleObserving(true);\n    // keep a copy of raw propsData\n    vm.$options.propsData = propsData;\n  }\n\n  // update listeners\n  listeners = listeners || emptyObject;\n  var oldListeners = vm.$options._parentListeners;\n  vm.$options._parentListeners = listeners;\n  updateComponentListeners(vm, listeners, oldListeners);\n\n  // resolve slots + force update if has children\n  if (needsForceUpdate) {\n    vm.$slots = resolveSlots(renderChildren, parentVnode.context);\n    vm.$forceUpdate();\n  }\n\n  if (process.env.NODE_ENV !== 'production') {\n    isUpdatingChildComponent = false;\n  }\n}\n\nfunction isInInactiveTree (vm) {\n  while (vm && (vm = vm.$parent)) {\n    if (vm._inactive) { return true }\n  }\n  return false\n}\n\nfunction activateChildComponent (vm, direct) {\n  if (direct) {\n    vm._directInactive = false;\n    if (isInInactiveTree(vm)) {\n      return\n    }\n  } else if (vm._directInactive) {\n    return\n  }\n  if (vm._inactive || vm._inactive === null) {\n    vm._inactive = false;\n    for (var i = 0; i < vm.$children.length; i++) {\n      activateChildComponent(vm.$children[i]);\n    }\n    callHook(vm, 'activated');\n  }\n}\n\nfunction deactivateChildComponent (vm, direct) {\n  if (direct) {\n    vm._directInactive = true;\n    if (isInInactiveTree(vm)) {\n      return\n    }\n  }\n  if (!vm._inactive) {\n    vm._inactive = true;\n    for (var i = 0; i < vm.$children.length; i++) {\n      deactivateChildComponent(vm.$children[i]);\n    }\n    callHook(vm, 'deactivated');\n  }\n}\n\nfunction callHook (vm, hook) {\n  // #7573 disable dep collection when invoking lifecycle hooks\n  pushTarget();\n  var handlers = vm.$options[hook];\n  var info = hook + \" hook\";\n  if (handlers) {\n    for (var i = 0, j = handlers.length; i < j; i++) {\n      invokeWithErrorHandling(handlers[i], vm, null, vm, info);\n    }\n  }\n  if (vm._hasHookEvent) {\n    vm.$emit('hook:' + hook);\n  }\n  popTarget();\n}\n\n/*  */\n\nvar MAX_UPDATE_COUNT = 100;\n\nvar queue = [];\nvar activatedChildren = [];\nvar has = {};\nvar circular = {};\nvar waiting = false;\nvar flushing = false;\nvar index = 0;\n\n/**\n * Reset the scheduler's state.\n */\nfunction resetSchedulerState () {\n  index = queue.length = activatedChildren.length = 0;\n  has = {};\n  if (process.env.NODE_ENV !== 'production') {\n    circular = {};\n  }\n  waiting = flushing = false;\n}\n\n// Async edge case #6566 requires saving the timestamp when event listeners are\n// attached. However, calling performance.now() has a perf overhead especially\n// if the page has thousands of event listeners. Instead, we take a timestamp\n// every time the scheduler flushes and use that for all event listeners\n// attached during that flush.\nvar currentFlushTimestamp = 0;\n\n// Async edge case fix requires storing an event listener's attach timestamp.\nvar getNow = Date.now;\n\n// Determine what event timestamp the browser is using. Annoyingly, the\n// timestamp can either be hi-res (relative to page load) or low-res\n// (relative to UNIX epoch), so in order to compare time we have to use the\n// same timestamp type when saving the flush timestamp.\n// All IE versions use low-res event timestamps, and have problematic clock\n// implementations (#9632)\nif (inBrowser && !isIE) {\n  var performance = window.performance;\n  if (\n    performance &&\n    typeof performance.now === 'function' &&\n    getNow() > document.createEvent('Event').timeStamp\n  ) {\n    // if the event timestamp, although evaluated AFTER the Date.now(), is\n    // smaller than it, it means the event is using a hi-res timestamp,\n    // and we need to use the hi-res version for event listener timestamps as\n    // well.\n    getNow = function () { return performance.now(); };\n  }\n}\n\n/**\n * Flush both queues and run the watchers.\n */\nfunction flushSchedulerQueue () {\n  currentFlushTimestamp = getNow();\n  flushing = true;\n  var watcher, id;\n\n  // Sort queue before flush.\n  // This ensures that:\n  // 1. Components are updated from parent to child. (because parent is always\n  //    created before the child)\n  // 2. A component's user watchers are run before its render watcher (because\n  //    user watchers are created before the render watcher)\n  // 3. If a component is destroyed during a parent component's watcher run,\n  //    its watchers can be skipped.\n  queue.sort(function (a, b) { return a.id - b.id; });\n\n  // do not cache length because more watchers might be pushed\n  // as we run existing watchers\n  for (index = 0; index < queue.length; index++) {\n    watcher = queue[index];\n    if (watcher.before) {\n      watcher.before();\n    }\n    id = watcher.id;\n    has[id] = null;\n    watcher.run();\n    // in dev build, check and stop circular updates.\n    if (process.env.NODE_ENV !== 'production' && has[id] != null) {\n      circular[id] = (circular[id] || 0) + 1;\n      if (circular[id] > MAX_UPDATE_COUNT) {\n        warn(\n          'You may have an infinite update loop ' + (\n            watcher.user\n              ? (\"in watcher with expression \\\"\" + (watcher.expression) + \"\\\"\")\n              : \"in a component render function.\"\n          ),\n          watcher.vm\n        );\n        break\n      }\n    }\n  }\n\n  // keep copies of post queues before resetting state\n  var activatedQueue = activatedChildren.slice();\n  var updatedQueue = queue.slice();\n\n  resetSchedulerState();\n\n  // call component updated and activated hooks\n  callActivatedHooks(activatedQueue);\n  callUpdatedHooks(updatedQueue);\n\n  // devtool hook\n  /* istanbul ignore if */\n  if (devtools && config.devtools) {\n    devtools.emit('flush');\n  }\n}\n\nfunction callUpdatedHooks (queue) {\n  var i = queue.length;\n  while (i--) {\n    var watcher = queue[i];\n    var vm = watcher.vm;\n    if (vm._watcher === watcher && vm._isMounted && !vm._isDestroyed) {\n      callHook(vm, 'updated');\n    }\n  }\n}\n\n/**\n * Queue a kept-alive component that was activated during patch.\n * The queue will be processed after the entire tree has been patched.\n */\nfunction queueActivatedComponent (vm) {\n  // setting _inactive to false here so that a render function can\n  // rely on checking whether it's in an inactive tree (e.g. router-view)\n  vm._inactive = false;\n  activatedChildren.push(vm);\n}\n\nfunction callActivatedHooks (queue) {\n  for (var i = 0; i < queue.length; i++) {\n    queue[i]._inactive = true;\n    activateChildComponent(queue[i], true /* true */);\n  }\n}\n\n/**\n * Push a watcher into the watcher queue.\n * Jobs with duplicate IDs will be skipped unless it's\n * pushed when the queue is being flushed.\n */\nfunction queueWatcher (watcher) {\n  var id = watcher.id;\n  if (has[id] == null) {\n    has[id] = true;\n    if (!flushing) {\n      queue.push(watcher);\n    } else {\n      // if already flushing, splice the watcher based on its id\n      // if already past its id, it will be run next immediately.\n      var i = queue.length - 1;\n      while (i > index && queue[i].id > watcher.id) {\n        i--;\n      }\n      queue.splice(i + 1, 0, watcher);\n    }\n    // queue the flush\n    if (!waiting) {\n      waiting = true;\n\n      if (process.env.NODE_ENV !== 'production' && !config.async) {\n        flushSchedulerQueue();\n        return\n      }\n      nextTick(flushSchedulerQueue);\n    }\n  }\n}\n\n/*  */\n\n\n\nvar uid$2 = 0;\n\n/**\n * A watcher parses an expression, collects dependencies,\n * and fires callback when the expression value changes.\n * This is used for both the $watch() api and directives.\n */\nvar Watcher = function Watcher (\n  vm,\n  expOrFn,\n  cb,\n  options,\n  isRenderWatcher\n) {\n  this.vm = vm;\n  if (isRenderWatcher) {\n    vm._watcher = this;\n  }\n  vm._watchers.push(this);\n  // options\n  if (options) {\n    this.deep = !!options.deep;\n    this.user = !!options.user;\n    this.lazy = !!options.lazy;\n    this.sync = !!options.sync;\n    this.before = options.before;\n  } else {\n    this.deep = this.user = this.lazy = this.sync = false;\n  }\n  this.cb = cb;\n  this.id = ++uid$2; // uid for batching\n  this.active = true;\n  this.dirty = this.lazy; // for lazy watchers\n  this.deps = [];\n  this.newDeps = [];\n  this.depIds = new _Set();\n  this.newDepIds = new _Set();\n  this.expression = process.env.NODE_ENV !== 'production'\n    ? expOrFn.toString()\n    : '';\n  // parse expression for getter\n  if (typeof expOrFn === 'function') {\n    this.getter = expOrFn;\n  } else {\n    this.getter = parsePath(expOrFn);\n    if (!this.getter) {\n      this.getter = noop;\n      process.env.NODE_ENV !== 'production' && warn(\n        \"Failed watching path: \\\"\" + expOrFn + \"\\\" \" +\n        'Watcher only accepts simple dot-delimited paths. ' +\n        'For full control, use a function instead.',\n        vm\n      );\n    }\n  }\n  this.value = this.lazy\n    ? undefined\n    : this.get();\n};\n\n/**\n * Evaluate the getter, and re-collect dependencies.\n */\nWatcher.prototype.get = function get () {\n  pushTarget(this);\n  var value;\n  var vm = this.vm;\n  try {\n    value = this.getter.call(vm, vm);\n  } catch (e) {\n    if (this.user) {\n      handleError(e, vm, (\"getter for watcher \\\"\" + (this.expression) + \"\\\"\"));\n    } else {\n      throw e\n    }\n  } finally {\n    // \"touch\" every property so they are all tracked as\n    // dependencies for deep watching\n    if (this.deep) {\n      traverse(value);\n    }\n    popTarget();\n    this.cleanupDeps();\n  }\n  return value\n};\n\n/**\n * Add a dependency to this directive.\n */\nWatcher.prototype.addDep = function addDep (dep) {\n  var id = dep.id;\n  if (!this.newDepIds.has(id)) {\n    this.newDepIds.add(id);\n    this.newDeps.push(dep);\n    if (!this.depIds.has(id)) {\n      dep.addSub(this);\n    }\n  }\n};\n\n/**\n * Clean up for dependency collection.\n */\nWatcher.prototype.cleanupDeps = function cleanupDeps () {\n  var i = this.deps.length;\n  while (i--) {\n    var dep = this.deps[i];\n    if (!this.newDepIds.has(dep.id)) {\n      dep.removeSub(this);\n    }\n  }\n  var tmp = this.depIds;\n  this.depIds = this.newDepIds;\n  this.newDepIds = tmp;\n  this.newDepIds.clear();\n  tmp = this.deps;\n  this.deps = this.newDeps;\n  this.newDeps = tmp;\n  this.newDeps.length = 0;\n};\n\n/**\n * Subscriber interface.\n * Will be called when a dependency changes.\n */\nWatcher.prototype.update = function update () {\n  /* istanbul ignore else */\n  if (this.lazy) {\n    this.dirty = true;\n  } else if (this.sync) {\n    this.run();\n  } else {\n    queueWatcher(this);\n  }\n};\n\n/**\n * Scheduler job interface.\n * Will be called by the scheduler.\n */\nWatcher.prototype.run = function run () {\n  if (this.active) {\n    var value = this.get();\n    if (\n      value !== this.value ||\n      // Deep watchers and watchers on Object/Arrays should fire even\n      // when the value is the same, because the value may\n      // have mutated.\n      isObject(value) ||\n      this.deep\n    ) {\n      // set new value\n      var oldValue = this.value;\n      this.value = value;\n      if (this.user) {\n        try {\n          this.cb.call(this.vm, value, oldValue);\n        } catch (e) {\n          handleError(e, this.vm, (\"callback for watcher \\\"\" + (this.expression) + \"\\\"\"));\n        }\n      } else {\n        this.cb.call(this.vm, value, oldValue);\n      }\n    }\n  }\n};\n\n/**\n * Evaluate the value of the watcher.\n * This only gets called for lazy watchers.\n */\nWatcher.prototype.evaluate = function evaluate () {\n  this.value = this.get();\n  this.dirty = false;\n};\n\n/**\n * Depend on all deps collected by this watcher.\n */\nWatcher.prototype.depend = function depend () {\n  var i = this.deps.length;\n  while (i--) {\n    this.deps[i].depend();\n  }\n};\n\n/**\n * Remove self from all dependencies' subscriber list.\n */\nWatcher.prototype.teardown = function teardown () {\n  if (this.active) {\n    // remove self from vm's watcher list\n    // this is a somewhat expensive operation so we skip it\n    // if the vm is being destroyed.\n    if (!this.vm._isBeingDestroyed) {\n      remove(this.vm._watchers, this);\n    }\n    var i = this.deps.length;\n    while (i--) {\n      this.deps[i].removeSub(this);\n    }\n    this.active = false;\n  }\n};\n\n/*  */\n\nvar sharedPropertyDefinition = {\n  enumerable: true,\n  configurable: true,\n  get: noop,\n  set: noop\n};\n\nfunction proxy (target, sourceKey, key) {\n  sharedPropertyDefinition.get = function proxyGetter () {\n    return this[sourceKey][key]\n  };\n  sharedPropertyDefinition.set = function proxySetter (val) {\n    this[sourceKey][key] = val;\n  };\n  Object.defineProperty(target, key, sharedPropertyDefinition);\n}\n\nfunction initState (vm) {\n  vm._watchers = [];\n  var opts = vm.$options;\n  if (opts.props) { initProps(vm, opts.props); }\n  if (opts.methods) { initMethods(vm, opts.methods); }\n  if (opts.data) {\n    initData(vm);\n  } else {\n    observe(vm._data = {}, true /* asRootData */);\n  }\n  if (opts.computed) { initComputed(vm, opts.computed); }\n  if (opts.watch && opts.watch !== nativeWatch) {\n    initWatch(vm, opts.watch);\n  }\n}\n\nfunction initProps (vm, propsOptions) {\n  var propsData = vm.$options.propsData || {};\n  var props = vm._props = {};\n  // cache prop keys so that future props updates can iterate using Array\n  // instead of dynamic object key enumeration.\n  var keys = vm.$options._propKeys = [];\n  var isRoot = !vm.$parent;\n  // root instance props should be converted\n  if (!isRoot) {\n    toggleObserving(false);\n  }\n  var loop = function ( key ) {\n    keys.push(key);\n    var value = validateProp(key, propsOptions, propsData, vm);\n    /* istanbul ignore else */\n    if (process.env.NODE_ENV !== 'production') {\n      var hyphenatedKey = hyphenate(key);\n      if (isReservedAttribute(hyphenatedKey) ||\n          config.isReservedAttr(hyphenatedKey)) {\n        warn(\n          (\"\\\"\" + hyphenatedKey + \"\\\" is a reserved attribute and cannot be used as component prop.\"),\n          vm\n        );\n      }\n      defineReactive$$1(props, key, value, function () {\n        if (!isRoot && !isUpdatingChildComponent) {\n          warn(\n            \"Avoid mutating a prop directly since the value will be \" +\n            \"overwritten whenever the parent component re-renders. \" +\n            \"Instead, use a data or computed property based on the prop's \" +\n            \"value. Prop being mutated: \\\"\" + key + \"\\\"\",\n            vm\n          );\n        }\n      });\n    } else {\n      defineReactive$$1(props, key, value);\n    }\n    // static props are already proxied on the component's prototype\n    // during Vue.extend(). We only need to proxy props defined at\n    // instantiation here.\n    if (!(key in vm)) {\n      proxy(vm, \"_props\", key);\n    }\n  };\n\n  for (var key in propsOptions) loop( key );\n  toggleObserving(true);\n}\n\nfunction initData (vm) {\n  var data = vm.$options.data;\n  data = vm._data = typeof data === 'function'\n    ? getData(data, vm)\n    : data || {};\n  if (!isPlainObject(data)) {\n    data = {};\n    process.env.NODE_ENV !== 'production' && warn(\n      'data functions should return an object:\\n' +\n      'https://vuejs.org/v2/guide/components.html#data-Must-Be-a-Function',\n      vm\n    );\n  }\n  // proxy data on instance\n  var keys = Object.keys(data);\n  var props = vm.$options.props;\n  var methods = vm.$options.methods;\n  var i = keys.length;\n  while (i--) {\n    var key = keys[i];\n    if (process.env.NODE_ENV !== 'production') {\n      if (methods && hasOwn(methods, key)) {\n        warn(\n          (\"Method \\\"\" + key + \"\\\" has already been defined as a data property.\"),\n          vm\n        );\n      }\n    }\n    if (props && hasOwn(props, key)) {\n      process.env.NODE_ENV !== 'production' && warn(\n        \"The data property \\\"\" + key + \"\\\" is already declared as a prop. \" +\n        \"Use prop default value instead.\",\n        vm\n      );\n    } else if (!isReserved(key)) {\n      proxy(vm, \"_data\", key);\n    }\n  }\n  // observe data\n  observe(data, true /* asRootData */);\n}\n\nfunction getData (data, vm) {\n  // #7573 disable dep collection when invoking data getters\n  pushTarget();\n  try {\n    return data.call(vm, vm)\n  } catch (e) {\n    handleError(e, vm, \"data()\");\n    return {}\n  } finally {\n    popTarget();\n  }\n}\n\nvar computedWatcherOptions = { lazy: true };\n\nfunction initComputed (vm, computed) {\n  // $flow-disable-line\n  var watchers = vm._computedWatchers = Object.create(null);\n  // computed properties are just getters during SSR\n  var isSSR = isServerRendering();\n\n  for (var key in computed) {\n    var userDef = computed[key];\n    var getter = typeof userDef === 'function' ? userDef : userDef.get;\n    if (process.env.NODE_ENV !== 'production' && getter == null) {\n      warn(\n        (\"Getter is missing for computed property \\\"\" + key + \"\\\".\"),\n        vm\n      );\n    }\n\n    if (!isSSR) {\n      // create internal watcher for the computed property.\n      watchers[key] = new Watcher(\n        vm,\n        getter || noop,\n        noop,\n        computedWatcherOptions\n      );\n    }\n\n    // component-defined computed properties are already defined on the\n    // component prototype. We only need to define computed properties defined\n    // at instantiation here.\n    if (!(key in vm)) {\n      defineComputed(vm, key, userDef);\n    } else if (process.env.NODE_ENV !== 'production') {\n      if (key in vm.$data) {\n        warn((\"The computed property \\\"\" + key + \"\\\" is already defined in data.\"), vm);\n      } else if (vm.$options.props && key in vm.$options.props) {\n        warn((\"The computed property \\\"\" + key + \"\\\" is already defined as a prop.\"), vm);\n      }\n    }\n  }\n}\n\nfunction defineComputed (\n  target,\n  key,\n  userDef\n) {\n  var shouldCache = !isServerRendering();\n  if (typeof userDef === 'function') {\n    sharedPropertyDefinition.get = shouldCache\n      ? createComputedGetter(key)\n      : createGetterInvoker(userDef);\n    sharedPropertyDefinition.set = noop;\n  } else {\n    sharedPropertyDefinition.get = userDef.get\n      ? shouldCache && userDef.cache !== false\n        ? createComputedGetter(key)\n        : createGetterInvoker(userDef.get)\n      : noop;\n    sharedPropertyDefinition.set = userDef.set || noop;\n  }\n  if (process.env.NODE_ENV !== 'production' &&\n      sharedPropertyDefinition.set === noop) {\n    sharedPropertyDefinition.set = function () {\n      warn(\n        (\"Computed property \\\"\" + key + \"\\\" was assigned to but it has no setter.\"),\n        this\n      );\n    };\n  }\n  Object.defineProperty(target, key, sharedPropertyDefinition);\n}\n\nfunction createComputedGetter (key) {\n  return function computedGetter () {\n    var watcher = this._computedWatchers && this._computedWatchers[key];\n    if (watcher) {\n      if (watcher.dirty) {\n        watcher.evaluate();\n      }\n      if (Dep.target) {\n        watcher.depend();\n      }\n      return watcher.value\n    }\n  }\n}\n\nfunction createGetterInvoker(fn) {\n  return function computedGetter () {\n    return fn.call(this, this)\n  }\n}\n\nfunction initMethods (vm, methods) {\n  var props = vm.$options.props;\n  for (var key in methods) {\n    if (process.env.NODE_ENV !== 'production') {\n      if (typeof methods[key] !== 'function') {\n        warn(\n          \"Method \\\"\" + key + \"\\\" has type \\\"\" + (typeof methods[key]) + \"\\\" in the component definition. \" +\n          \"Did you reference the function correctly?\",\n          vm\n        );\n      }\n      if (props && hasOwn(props, key)) {\n        warn(\n          (\"Method \\\"\" + key + \"\\\" has already been defined as a prop.\"),\n          vm\n        );\n      }\n      if ((key in vm) && isReserved(key)) {\n        warn(\n          \"Method \\\"\" + key + \"\\\" conflicts with an existing Vue instance method. \" +\n          \"Avoid defining component methods that start with _ or $.\"\n        );\n      }\n    }\n    vm[key] = typeof methods[key] !== 'function' ? noop : bind(methods[key], vm);\n  }\n}\n\nfunction initWatch (vm, watch) {\n  for (var key in watch) {\n    var handler = watch[key];\n    if (Array.isArray(handler)) {\n      for (var i = 0; i < handler.length; i++) {\n        createWatcher(vm, key, handler[i]);\n      }\n    } else {\n      createWatcher(vm, key, handler);\n    }\n  }\n}\n\nfunction createWatcher (\n  vm,\n  expOrFn,\n  handler,\n  options\n) {\n  if (isPlainObject(handler)) {\n    options = handler;\n    handler = handler.handler;\n  }\n  if (typeof handler === 'string') {\n    handler = vm[handler];\n  }\n  return vm.$watch(expOrFn, handler, options)\n}\n\nfunction stateMixin (Vue) {\n  // flow somehow has problems with directly declared definition object\n  // when using Object.defineProperty, so we have to procedurally build up\n  // the object here.\n  var dataDef = {};\n  dataDef.get = function () { return this._data };\n  var propsDef = {};\n  propsDef.get = function () { return this._props };\n  if (process.env.NODE_ENV !== 'production') {\n    dataDef.set = function () {\n      warn(\n        'Avoid replacing instance root $data. ' +\n        'Use nested data properties instead.',\n        this\n      );\n    };\n    propsDef.set = function () {\n      warn(\"$props is readonly.\", this);\n    };\n  }\n  Object.defineProperty(Vue.prototype, '$data', dataDef);\n  Object.defineProperty(Vue.prototype, '$props', propsDef);\n\n  Vue.prototype.$set = set;\n  Vue.prototype.$delete = del;\n\n  Vue.prototype.$watch = function (\n    expOrFn,\n    cb,\n    options\n  ) {\n    var vm = this;\n    if (isPlainObject(cb)) {\n      return createWatcher(vm, expOrFn, cb, options)\n    }\n    options = options || {};\n    options.user = true;\n    var watcher = new Watcher(vm, expOrFn, cb, options);\n    if (options.immediate) {\n      try {\n        cb.call(vm, watcher.value);\n      } catch (error) {\n        handleError(error, vm, (\"callback for immediate watcher \\\"\" + (watcher.expression) + \"\\\"\"));\n      }\n    }\n    return function unwatchFn () {\n      watcher.teardown();\n    }\n  };\n}\n\n/*  */\n\nvar uid$3 = 0;\n\nfunction initMixin (Vue) {\n  Vue.prototype._init = function (options) {\n    var vm = this;\n    // a uid\n    vm._uid = uid$3++;\n\n    var startTag, endTag;\n    /* istanbul ignore if */\n    if (process.env.NODE_ENV !== 'production' && config.performance && mark) {\n      startTag = \"vue-perf-start:\" + (vm._uid);\n      endTag = \"vue-perf-end:\" + (vm._uid);\n      mark(startTag);\n    }\n\n    // a flag to avoid this being observed\n    vm._isVue = true;\n    // merge options\n    if (options && options._isComponent) {\n      // optimize internal component instantiation\n      // since dynamic options merging is pretty slow, and none of the\n      // internal component options needs special treatment.\n      initInternalComponent(vm, options);\n    } else {\n      vm.$options = mergeOptions(\n        resolveConstructorOptions(vm.constructor),\n        options || {},\n        vm\n      );\n    }\n    /* istanbul ignore else */\n    if (process.env.NODE_ENV !== 'production') {\n      initProxy(vm);\n    } else {\n      vm._renderProxy = vm;\n    }\n    // expose real self\n    vm._self = vm;\n    initLifecycle(vm);\n    initEvents(vm);\n    initRender(vm);\n    callHook(vm, 'beforeCreate');\n    initInjections(vm); // resolve injections before data/props\n    initState(vm);\n    initProvide(vm); // resolve provide after data/props\n    callHook(vm, 'created');\n\n    /* istanbul ignore if */\n    if (process.env.NODE_ENV !== 'production' && config.performance && mark) {\n      vm._name = formatComponentName(vm, false);\n      mark(endTag);\n      measure((\"vue \" + (vm._name) + \" init\"), startTag, endTag);\n    }\n\n    if (vm.$options.el) {\n      vm.$mount(vm.$options.el);\n    }\n  };\n}\n\nfunction initInternalComponent (vm, options) {\n  var opts = vm.$options = Object.create(vm.constructor.options);\n  // doing this because it's faster than dynamic enumeration.\n  var parentVnode = options._parentVnode;\n  opts.parent = options.parent;\n  opts._parentVnode = parentVnode;\n\n  var vnodeComponentOptions = parentVnode.componentOptions;\n  opts.propsData = vnodeComponentOptions.propsData;\n  opts._parentListeners = vnodeComponentOptions.listeners;\n  opts._renderChildren = vnodeComponentOptions.children;\n  opts._componentTag = vnodeComponentOptions.tag;\n\n  if (options.render) {\n    opts.render = options.render;\n    opts.staticRenderFns = options.staticRenderFns;\n  }\n}\n\nfunction resolveConstructorOptions (Ctor) {\n  var options = Ctor.options;\n  if (Ctor.super) {\n    var superOptions = resolveConstructorOptions(Ctor.super);\n    var cachedSuperOptions = Ctor.superOptions;\n    if (superOptions !== cachedSuperOptions) {\n      // super option changed,\n      // need to resolve new options.\n      Ctor.superOptions = superOptions;\n      // check if there are any late-modified/attached options (#4976)\n      var modifiedOptions = resolveModifiedOptions(Ctor);\n      // update base extend options\n      if (modifiedOptions) {\n        extend(Ctor.extendOptions, modifiedOptions);\n      }\n      options = Ctor.options = mergeOptions(superOptions, Ctor.extendOptions);\n      if (options.name) {\n        options.components[options.name] = Ctor;\n      }\n    }\n  }\n  return options\n}\n\nfunction resolveModifiedOptions (Ctor) {\n  var modified;\n  var latest = Ctor.options;\n  var sealed = Ctor.sealedOptions;\n  for (var key in latest) {\n    if (latest[key] !== sealed[key]) {\n      if (!modified) { modified = {}; }\n      modified[key] = latest[key];\n    }\n  }\n  return modified\n}\n\nfunction Vue (options) {\n  if (process.env.NODE_ENV !== 'production' &&\n    !(this instanceof Vue)\n  ) {\n    warn('Vue is a constructor and should be called with the `new` keyword');\n  }\n  this._init(options);\n}\n\ninitMixin(Vue);\nstateMixin(Vue);\neventsMixin(Vue);\nlifecycleMixin(Vue);\nrenderMixin(Vue);\n\n/*  */\n\nfunction initUse (Vue) {\n  Vue.use = function (plugin) {\n    var installedPlugins = (this._installedPlugins || (this._installedPlugins = []));\n    if (installedPlugins.indexOf(plugin) > -1) {\n      return this\n    }\n\n    // additional parameters\n    var args = toArray(arguments, 1);\n    args.unshift(this);\n    if (typeof plugin.install === 'function') {\n      plugin.install.apply(plugin, args);\n    } else if (typeof plugin === 'function') {\n      plugin.apply(null, args);\n    }\n    installedPlugins.push(plugin);\n    return this\n  };\n}\n\n/*  */\n\nfunction initMixin$1 (Vue) {\n  Vue.mixin = function (mixin) {\n    this.options = mergeOptions(this.options, mixin);\n    return this\n  };\n}\n\n/*  */\n\nfunction initExtend (Vue) {\n  /**\n   * Each instance constructor, including Vue, has a unique\n   * cid. This enables us to create wrapped \"child\n   * constructors\" for prototypal inheritance and cache them.\n   */\n  Vue.cid = 0;\n  var cid = 1;\n\n  /**\n   * Class inheritance\n   */\n  Vue.extend = function (extendOptions) {\n    extendOptions = extendOptions || {};\n    var Super = this;\n    var SuperId = Super.cid;\n    var cachedCtors = extendOptions._Ctor || (extendOptions._Ctor = {});\n    if (cachedCtors[SuperId]) {\n      return cachedCtors[SuperId]\n    }\n\n    var name = extendOptions.name || Super.options.name;\n    if (process.env.NODE_ENV !== 'production' && name) {\n      validateComponentName(name);\n    }\n\n    var Sub = function VueComponent (options) {\n      this._init(options);\n    };\n    Sub.prototype = Object.create(Super.prototype);\n    Sub.prototype.constructor = Sub;\n    Sub.cid = cid++;\n    Sub.options = mergeOptions(\n      Super.options,\n      extendOptions\n    );\n    Sub['super'] = Super;\n\n    // For props and computed properties, we define the proxy getters on\n    // the Vue instances at extension time, on the extended prototype. This\n    // avoids Object.defineProperty calls for each instance created.\n    if (Sub.options.props) {\n      initProps$1(Sub);\n    }\n    if (Sub.options.computed) {\n      initComputed$1(Sub);\n    }\n\n    // allow further extension/mixin/plugin usage\n    Sub.extend = Super.extend;\n    Sub.mixin = Super.mixin;\n    Sub.use = Super.use;\n\n    // create asset registers, so extended classes\n    // can have their private assets too.\n    ASSET_TYPES.forEach(function (type) {\n      Sub[type] = Super[type];\n    });\n    // enable recursive self-lookup\n    if (name) {\n      Sub.options.components[name] = Sub;\n    }\n\n    // keep a reference to the super options at extension time.\n    // later at instantiation we can check if Super's options have\n    // been updated.\n    Sub.superOptions = Super.options;\n    Sub.extendOptions = extendOptions;\n    Sub.sealedOptions = extend({}, Sub.options);\n\n    // cache constructor\n    cachedCtors[SuperId] = Sub;\n    return Sub\n  };\n}\n\nfunction initProps$1 (Comp) {\n  var props = Comp.options.props;\n  for (var key in props) {\n    proxy(Comp.prototype, \"_props\", key);\n  }\n}\n\nfunction initComputed$1 (Comp) {\n  var computed = Comp.options.computed;\n  for (var key in computed) {\n    defineComputed(Comp.prototype, key, computed[key]);\n  }\n}\n\n/*  */\n\nfunction initAssetRegisters (Vue) {\n  /**\n   * Create asset registration methods.\n   */\n  ASSET_TYPES.forEach(function (type) {\n    Vue[type] = function (\n      id,\n      definition\n    ) {\n      if (!definition) {\n        return this.options[type + 's'][id]\n      } else {\n        /* istanbul ignore if */\n        if (process.env.NODE_ENV !== 'production' && type === 'component') {\n          validateComponentName(id);\n        }\n        if (type === 'component' && isPlainObject(definition)) {\n          definition.name = definition.name || id;\n          definition = this.options._base.extend(definition);\n        }\n        if (type === 'directive' && typeof definition === 'function') {\n          definition = { bind: definition, update: definition };\n        }\n        this.options[type + 's'][id] = definition;\n        return definition\n      }\n    };\n  });\n}\n\n/*  */\n\n\n\nfunction getComponentName (opts) {\n  return opts && (opts.Ctor.options.name || opts.tag)\n}\n\nfunction matches (pattern, name) {\n  if (Array.isArray(pattern)) {\n    return pattern.indexOf(name) > -1\n  } else if (typeof pattern === 'string') {\n    return pattern.split(',').indexOf(name) > -1\n  } else if (isRegExp(pattern)) {\n    return pattern.test(name)\n  }\n  /* istanbul ignore next */\n  return false\n}\n\nfunction pruneCache (keepAliveInstance, filter) {\n  var cache = keepAliveInstance.cache;\n  var keys = keepAliveInstance.keys;\n  var _vnode = keepAliveInstance._vnode;\n  for (var key in cache) {\n    var cachedNode = cache[key];\n    if (cachedNode) {\n      var name = getComponentName(cachedNode.componentOptions);\n      if (name && !filter(name)) {\n        pruneCacheEntry(cache, key, keys, _vnode);\n      }\n    }\n  }\n}\n\nfunction pruneCacheEntry (\n  cache,\n  key,\n  keys,\n  current\n) {\n  var cached$$1 = cache[key];\n  if (cached$$1 && (!current || cached$$1.tag !== current.tag)) {\n    cached$$1.componentInstance.$destroy();\n  }\n  cache[key] = null;\n  remove(keys, key);\n}\n\nvar patternTypes = [String, RegExp, Array];\n\nvar KeepAlive = {\n  name: 'keep-alive',\n  abstract: true,\n\n  props: {\n    include: patternTypes,\n    exclude: patternTypes,\n    max: [String, Number]\n  },\n\n  created: function created () {\n    this.cache = Object.create(null);\n    this.keys = [];\n  },\n\n  destroyed: function destroyed () {\n    for (var key in this.cache) {\n      pruneCacheEntry(this.cache, key, this.keys);\n    }\n  },\n\n  mounted: function mounted () {\n    var this$1 = this;\n\n    this.$watch('include', function (val) {\n      pruneCache(this$1, function (name) { return matches(val, name); });\n    });\n    this.$watch('exclude', function (val) {\n      pruneCache(this$1, function (name) { return !matches(val, name); });\n    });\n  },\n\n  render: function render () {\n    var slot = this.$slots.default;\n    var vnode = getFirstComponentChild(slot);\n    var componentOptions = vnode && vnode.componentOptions;\n    if (componentOptions) {\n      // check pattern\n      var name = getComponentName(componentOptions);\n      var ref = this;\n      var include = ref.include;\n      var exclude = ref.exclude;\n      if (\n        // not included\n        (include && (!name || !matches(include, name))) ||\n        // excluded\n        (exclude && name && matches(exclude, name))\n      ) {\n        return vnode\n      }\n\n      var ref$1 = this;\n      var cache = ref$1.cache;\n      var keys = ref$1.keys;\n      var key = vnode.key == null\n        // same constructor may get registered as different local components\n        // so cid alone is not enough (#3269)\n        ? componentOptions.Ctor.cid + (componentOptions.tag ? (\"::\" + (componentOptions.tag)) : '')\n        : vnode.key;\n      if (cache[key]) {\n        vnode.componentInstance = cache[key].componentInstance;\n        // make current key freshest\n        remove(keys, key);\n        keys.push(key);\n      } else {\n        cache[key] = vnode;\n        keys.push(key);\n        // prune oldest entry\n        if (this.max && keys.length > parseInt(this.max)) {\n          pruneCacheEntry(cache, keys[0], keys, this._vnode);\n        }\n      }\n\n      vnode.data.keepAlive = true;\n    }\n    return vnode || (slot && slot[0])\n  }\n};\n\nvar builtInComponents = {\n  KeepAlive: KeepAlive\n};\n\n/*  */\n\nfunction initGlobalAPI (Vue) {\n  // config\n  var configDef = {};\n  configDef.get = function () { return config; };\n  if (process.env.NODE_ENV !== 'production') {\n    configDef.set = function () {\n      warn(\n        'Do not replace the Vue.config object, set individual fields instead.'\n      );\n    };\n  }\n  Object.defineProperty(Vue, 'config', configDef);\n\n  // exposed util methods.\n  // NOTE: these are not considered part of the public API - avoid relying on\n  // them unless you are aware of the risk.\n  Vue.util = {\n    warn: warn,\n    extend: extend,\n    mergeOptions: mergeOptions,\n    defineReactive: defineReactive$$1\n  };\n\n  Vue.set = set;\n  Vue.delete = del;\n  Vue.nextTick = nextTick;\n\n  // 2.6 explicit observable API\n  Vue.observable = function (obj) {\n    observe(obj);\n    return obj\n  };\n\n  Vue.options = Object.create(null);\n  ASSET_TYPES.forEach(function (type) {\n    Vue.options[type + 's'] = Object.create(null);\n  });\n\n  // this is used to identify the \"base\" constructor to extend all plain-object\n  // components with in Weex's multi-instance scenarios.\n  Vue.options._base = Vue;\n\n  extend(Vue.options.components, builtInComponents);\n\n  initUse(Vue);\n  initMixin$1(Vue);\n  initExtend(Vue);\n  initAssetRegisters(Vue);\n}\n\ninitGlobalAPI(Vue);\n\nObject.defineProperty(Vue.prototype, '$isServer', {\n  get: isServerRendering\n});\n\nObject.defineProperty(Vue.prototype, '$ssrContext', {\n  get: function get () {\n    /* istanbul ignore next */\n    return this.$vnode && this.$vnode.ssrContext\n  }\n});\n\n// expose FunctionalRenderContext for ssr runtime helper installation\nObject.defineProperty(Vue, 'FunctionalRenderContext', {\n  value: FunctionalRenderContext\n});\n\nVue.version = '2.6.11';\n\n/*  */\n\n// these are reserved for web because they are directly compiled away\n// during template compilation\nvar isReservedAttr = makeMap('style,class');\n\n// attributes that should be using props for binding\nvar acceptValue = makeMap('input,textarea,option,select,progress');\nvar mustUseProp = function (tag, type, attr) {\n  return (\n    (attr === 'value' && acceptValue(tag)) && type !== 'button' ||\n    (attr === 'selected' && tag === 'option') ||\n    (attr === 'checked' && tag === 'input') ||\n    (attr === 'muted' && tag === 'video')\n  )\n};\n\nvar isEnumeratedAttr = makeMap('contenteditable,draggable,spellcheck');\n\nvar isValidContentEditableValue = makeMap('events,caret,typing,plaintext-only');\n\nvar convertEnumeratedValue = function (key, value) {\n  return isFalsyAttrValue(value) || value === 'false'\n    ? 'false'\n    // allow arbitrary string value for contenteditable\n    : key === 'contenteditable' && isValidContentEditableValue(value)\n      ? value\n      : 'true'\n};\n\nvar isBooleanAttr = makeMap(\n  'allowfullscreen,async,autofocus,autoplay,checked,compact,controls,declare,' +\n  'default,defaultchecked,defaultmuted,defaultselected,defer,disabled,' +\n  'enabled,formnovalidate,hidden,indeterminate,inert,ismap,itemscope,loop,multiple,' +\n  'muted,nohref,noresize,noshade,novalidate,nowrap,open,pauseonexit,readonly,' +\n  'required,reversed,scoped,seamless,selected,sortable,translate,' +\n  'truespeed,typemustmatch,visible'\n);\n\nvar xlinkNS = 'http://www.w3.org/1999/xlink';\n\nvar isXlink = function (name) {\n  return name.charAt(5) === ':' && name.slice(0, 5) === 'xlink'\n};\n\nvar getXlinkProp = function (name) {\n  return isXlink(name) ? name.slice(6, name.length) : ''\n};\n\nvar isFalsyAttrValue = function (val) {\n  return val == null || val === false\n};\n\n/*  */\n\nfunction genClassForVnode (vnode) {\n  var data = vnode.data;\n  var parentNode = vnode;\n  var childNode = vnode;\n  while (isDef(childNode.componentInstance)) {\n    childNode = childNode.componentInstance._vnode;\n    if (childNode && childNode.data) {\n      data = mergeClassData(childNode.data, data);\n    }\n  }\n  while (isDef(parentNode = parentNode.parent)) {\n    if (parentNode && parentNode.data) {\n      data = mergeClassData(data, parentNode.data);\n    }\n  }\n  return renderClass(data.staticClass, data.class)\n}\n\nfunction mergeClassData (child, parent) {\n  return {\n    staticClass: concat(child.staticClass, parent.staticClass),\n    class: isDef(child.class)\n      ? [child.class, parent.class]\n      : parent.class\n  }\n}\n\nfunction renderClass (\n  staticClass,\n  dynamicClass\n) {\n  if (isDef(staticClass) || isDef(dynamicClass)) {\n    return concat(staticClass, stringifyClass(dynamicClass))\n  }\n  /* istanbul ignore next */\n  return ''\n}\n\nfunction concat (a, b) {\n  return a ? b ? (a + ' ' + b) : a : (b || '')\n}\n\nfunction stringifyClass (value) {\n  if (Array.isArray(value)) {\n    return stringifyArray(value)\n  }\n  if (isObject(value)) {\n    return stringifyObject(value)\n  }\n  if (typeof value === 'string') {\n    return value\n  }\n  /* istanbul ignore next */\n  return ''\n}\n\nfunction stringifyArray (value) {\n  var res = '';\n  var stringified;\n  for (var i = 0, l = value.length; i < l; i++) {\n    if (isDef(stringified = stringifyClass(value[i])) && stringified !== '') {\n      if (res) { res += ' '; }\n      res += stringified;\n    }\n  }\n  return res\n}\n\nfunction stringifyObject (value) {\n  var res = '';\n  for (var key in value) {\n    if (value[key]) {\n      if (res) { res += ' '; }\n      res += key;\n    }\n  }\n  return res\n}\n\n/*  */\n\nvar namespaceMap = {\n  svg: 'http://www.w3.org/2000/svg',\n  math: 'http://www.w3.org/1998/Math/MathML'\n};\n\nvar isHTMLTag = makeMap(\n  'html,body,base,head,link,meta,style,title,' +\n  'address,article,aside,footer,header,h1,h2,h3,h4,h5,h6,hgroup,nav,section,' +\n  'div,dd,dl,dt,figcaption,figure,picture,hr,img,li,main,ol,p,pre,ul,' +\n  'a,b,abbr,bdi,bdo,br,cite,code,data,dfn,em,i,kbd,mark,q,rp,rt,rtc,ruby,' +\n  's,samp,small,span,strong,sub,sup,time,u,var,wbr,area,audio,map,track,video,' +\n  'embed,object,param,source,canvas,script,noscript,del,ins,' +\n  'caption,col,colgroup,table,thead,tbody,td,th,tr,' +\n  'button,datalist,fieldset,form,input,label,legend,meter,optgroup,option,' +\n  'output,progress,select,textarea,' +\n  'details,dialog,menu,menuitem,summary,' +\n  'content,element,shadow,template,blockquote,iframe,tfoot'\n);\n\n// this map is intentionally selective, only covering SVG elements that may\n// contain child elements.\nvar isSVG = makeMap(\n  'svg,animate,circle,clippath,cursor,defs,desc,ellipse,filter,font-face,' +\n  'foreignObject,g,glyph,image,line,marker,mask,missing-glyph,path,pattern,' +\n  'polygon,polyline,rect,switch,symbol,text,textpath,tspan,use,view',\n  true\n);\n\nvar isReservedTag = function (tag) {\n  return isHTMLTag(tag) || isSVG(tag)\n};\n\nfunction getTagNamespace (tag) {\n  if (isSVG(tag)) {\n    return 'svg'\n  }\n  // basic support for MathML\n  // note it doesn't support other MathML elements being component roots\n  if (tag === 'math') {\n    return 'math'\n  }\n}\n\nvar unknownElementCache = Object.create(null);\nfunction isUnknownElement (tag) {\n  /* istanbul ignore if */\n  if (!inBrowser) {\n    return true\n  }\n  if (isReservedTag(tag)) {\n    return false\n  }\n  tag = tag.toLowerCase();\n  /* istanbul ignore if */\n  if (unknownElementCache[tag] != null) {\n    return unknownElementCache[tag]\n  }\n  var el = document.createElement(tag);\n  if (tag.indexOf('-') > -1) {\n    // http://stackoverflow.com/a/28210364/1070244\n    return (unknownElementCache[tag] = (\n      el.constructor === window.HTMLUnknownElement ||\n      el.constructor === window.HTMLElement\n    ))\n  } else {\n    return (unknownElementCache[tag] = /HTMLUnknownElement/.test(el.toString()))\n  }\n}\n\nvar isTextInputType = makeMap('text,number,password,search,email,tel,url');\n\n/*  */\n\n/**\n * Query an element selector if it's not an element already.\n */\nfunction query (el) {\n  if (typeof el === 'string') {\n    var selected = document.querySelector(el);\n    if (!selected) {\n      process.env.NODE_ENV !== 'production' && warn(\n        'Cannot find element: ' + el\n      );\n      return document.createElement('div')\n    }\n    return selected\n  } else {\n    return el\n  }\n}\n\n/*  */\n\nfunction createElement$1 (tagName, vnode) {\n  var elm = document.createElement(tagName);\n  if (tagName !== 'select') {\n    return elm\n  }\n  // false or null will remove the attribute but undefined will not\n  if (vnode.data && vnode.data.attrs && vnode.data.attrs.multiple !== undefined) {\n    elm.setAttribute('multiple', 'multiple');\n  }\n  return elm\n}\n\nfunction createElementNS (namespace, tagName) {\n  return document.createElementNS(namespaceMap[namespace], tagName)\n}\n\nfunction createTextNode (text) {\n  return document.createTextNode(text)\n}\n\nfunction createComment (text) {\n  return document.createComment(text)\n}\n\nfunction insertBefore (parentNode, newNode, referenceNode) {\n  parentNode.insertBefore(newNode, referenceNode);\n}\n\nfunction removeChild (node, child) {\n  node.removeChild(child);\n}\n\nfunction appendChild (node, child) {\n  node.appendChild(child);\n}\n\nfunction parentNode (node) {\n  return node.parentNode\n}\n\nfunction nextSibling (node) {\n  return node.nextSibling\n}\n\nfunction tagName (node) {\n  return node.tagName\n}\n\nfunction setTextContent (node, text) {\n  node.textContent = text;\n}\n\nfunction setStyleScope (node, scopeId) {\n  node.setAttribute(scopeId, '');\n}\n\nvar nodeOps = /*#__PURE__*/Object.freeze({\n  createElement: createElement$1,\n  createElementNS: createElementNS,\n  createTextNode: createTextNode,\n  createComment: createComment,\n  insertBefore: insertBefore,\n  removeChild: removeChild,\n  appendChild: appendChild,\n  parentNode: parentNode,\n  nextSibling: nextSibling,\n  tagName: tagName,\n  setTextContent: setTextContent,\n  setStyleScope: setStyleScope\n});\n\n/*  */\n\nvar ref = {\n  create: function create (_, vnode) {\n    registerRef(vnode);\n  },\n  update: function update (oldVnode, vnode) {\n    if (oldVnode.data.ref !== vnode.data.ref) {\n      registerRef(oldVnode, true);\n      registerRef(vnode);\n    }\n  },\n  destroy: function destroy (vnode) {\n    registerRef(vnode, true);\n  }\n};\n\nfunction registerRef (vnode, isRemoval) {\n  var key = vnode.data.ref;\n  if (!isDef(key)) { return }\n\n  var vm = vnode.context;\n  var ref = vnode.componentInstance || vnode.elm;\n  var refs = vm.$refs;\n  if (isRemoval) {\n    if (Array.isArray(refs[key])) {\n      remove(refs[key], ref);\n    } else if (refs[key] === ref) {\n      refs[key] = undefined;\n    }\n  } else {\n    if (vnode.data.refInFor) {\n      if (!Array.isArray(refs[key])) {\n        refs[key] = [ref];\n      } else if (refs[key].indexOf(ref) < 0) {\n        // $flow-disable-line\n        refs[key].push(ref);\n      }\n    } else {\n      refs[key] = ref;\n    }\n  }\n}\n\n/**\n * Virtual DOM patching algorithm based on Snabbdom by\n * Simon Friis Vindum (@paldepind)\n * Licensed under the MIT License\n * https://github.com/paldepind/snabbdom/blob/master/LICENSE\n *\n * modified by Evan You (@yyx990803)\n *\n * Not type-checking this because this file is perf-critical and the cost\n * of making flow understand it is not worth it.\n */\n\nvar emptyNode = new VNode('', {}, []);\n\nvar hooks = ['create', 'activate', 'update', 'remove', 'destroy'];\n\nfunction sameVnode (a, b) {\n  return (\n    a.key === b.key && (\n      (\n        a.tag === b.tag &&\n        a.isComment === b.isComment &&\n        isDef(a.data) === isDef(b.data) &&\n        sameInputType(a, b)\n      ) || (\n        isTrue(a.isAsyncPlaceholder) &&\n        a.asyncFactory === b.asyncFactory &&\n        isUndef(b.asyncFactory.error)\n      )\n    )\n  )\n}\n\nfunction sameInputType (a, b) {\n  if (a.tag !== 'input') { return true }\n  var i;\n  var typeA = isDef(i = a.data) && isDef(i = i.attrs) && i.type;\n  var typeB = isDef(i = b.data) && isDef(i = i.attrs) && i.type;\n  return typeA === typeB || isTextInputType(typeA) && isTextInputType(typeB)\n}\n\nfunction createKeyToOldIdx (children, beginIdx, endIdx) {\n  var i, key;\n  var map = {};\n  for (i = beginIdx; i <= endIdx; ++i) {\n    key = children[i].key;\n    if (isDef(key)) { map[key] = i; }\n  }\n  return map\n}\n\nfunction createPatchFunction (backend) {\n  var i, j;\n  var cbs = {};\n\n  var modules = backend.modules;\n  var nodeOps = backend.nodeOps;\n\n  for (i = 0; i < hooks.length; ++i) {\n    cbs[hooks[i]] = [];\n    for (j = 0; j < modules.length; ++j) {\n      if (isDef(modules[j][hooks[i]])) {\n        cbs[hooks[i]].push(modules[j][hooks[i]]);\n      }\n    }\n  }\n\n  function emptyNodeAt (elm) {\n    return new VNode(nodeOps.tagName(elm).toLowerCase(), {}, [], undefined, elm)\n  }\n\n  function createRmCb (childElm, listeners) {\n    function remove$$1 () {\n      if (--remove$$1.listeners === 0) {\n        removeNode(childElm);\n      }\n    }\n    remove$$1.listeners = listeners;\n    return remove$$1\n  }\n\n  function removeNode (el) {\n    var parent = nodeOps.parentNode(el);\n    // element may have already been removed due to v-html / v-text\n    if (isDef(parent)) {\n      nodeOps.removeChild(parent, el);\n    }\n  }\n\n  function isUnknownElement$$1 (vnode, inVPre) {\n    return (\n      !inVPre &&\n      !vnode.ns &&\n      !(\n        config.ignoredElements.length &&\n        config.ignoredElements.some(function (ignore) {\n          return isRegExp(ignore)\n            ? ignore.test(vnode.tag)\n            : ignore === vnode.tag\n        })\n      ) &&\n      config.isUnknownElement(vnode.tag)\n    )\n  }\n\n  var creatingElmInVPre = 0;\n\n  function createElm (\n    vnode,\n    insertedVnodeQueue,\n    parentElm,\n    refElm,\n    nested,\n    ownerArray,\n    index\n  ) {\n    if (isDef(vnode.elm) && isDef(ownerArray)) {\n      // This vnode was used in a previous render!\n      // now it's used as a new node, overwriting its elm would cause\n      // potential patch errors down the road when it's used as an insertion\n      // reference node. Instead, we clone the node on-demand before creating\n      // associated DOM element for it.\n      vnode = ownerArray[index] = cloneVNode(vnode);\n    }\n\n    vnode.isRootInsert = !nested; // for transition enter check\n    if (createComponent(vnode, insertedVnodeQueue, parentElm, refElm)) {\n      return\n    }\n\n    var data = vnode.data;\n    var children = vnode.children;\n    var tag = vnode.tag;\n    if (isDef(tag)) {\n      if (process.env.NODE_ENV !== 'production') {\n        if (data && data.pre) {\n          creatingElmInVPre++;\n        }\n        if (isUnknownElement$$1(vnode, creatingElmInVPre)) {\n          warn(\n            'Unknown custom element: <' + tag + '> - did you ' +\n            'register the component correctly? For recursive components, ' +\n            'make sure to provide the \"name\" option.',\n            vnode.context\n          );\n        }\n      }\n\n      vnode.elm = vnode.ns\n        ? nodeOps.createElementNS(vnode.ns, tag)\n        : nodeOps.createElement(tag, vnode);\n      setScope(vnode);\n\n      /* istanbul ignore if */\n      {\n        createChildren(vnode, children, insertedVnodeQueue);\n        if (isDef(data)) {\n          invokeCreateHooks(vnode, insertedVnodeQueue);\n        }\n        insert(parentElm, vnode.elm, refElm);\n      }\n\n      if (process.env.NODE_ENV !== 'production' && data && data.pre) {\n        creatingElmInVPre--;\n      }\n    } else if (isTrue(vnode.isComment)) {\n      vnode.elm = nodeOps.createComment(vnode.text);\n      insert(parentElm, vnode.elm, refElm);\n    } else {\n      vnode.elm = nodeOps.createTextNode(vnode.text);\n      insert(parentElm, vnode.elm, refElm);\n    }\n  }\n\n  function createComponent (vnode, insertedVnodeQueue, parentElm, refElm) {\n    var i = vnode.data;\n    if (isDef(i)) {\n      var isReactivated = isDef(vnode.componentInstance) && i.keepAlive;\n      if (isDef(i = i.hook) && isDef(i = i.init)) {\n        i(vnode, false /* hydrating */);\n      }\n      // after calling the init hook, if the vnode is a child component\n      // it should've created a child instance and mounted it. the child\n      // component also has set the placeholder vnode's elm.\n      // in that case we can just return the element and be done.\n      if (isDef(vnode.componentInstance)) {\n        initComponent(vnode, insertedVnodeQueue);\n        insert(parentElm, vnode.elm, refElm);\n        if (isTrue(isReactivated)) {\n          reactivateComponent(vnode, insertedVnodeQueue, parentElm, refElm);\n        }\n        return true\n      }\n    }\n  }\n\n  function initComponent (vnode, insertedVnodeQueue) {\n    if (isDef(vnode.data.pendingInsert)) {\n      insertedVnodeQueue.push.apply(insertedVnodeQueue, vnode.data.pendingInsert);\n      vnode.data.pendingInsert = null;\n    }\n    vnode.elm = vnode.componentInstance.$el;\n    if (isPatchable(vnode)) {\n      invokeCreateHooks(vnode, insertedVnodeQueue);\n      setScope(vnode);\n    } else {\n      // empty component root.\n      // skip all element-related modules except for ref (#3455)\n      registerRef(vnode);\n      // make sure to invoke the insert hook\n      insertedVnodeQueue.push(vnode);\n    }\n  }\n\n  function reactivateComponent (vnode, insertedVnodeQueue, parentElm, refElm) {\n    var i;\n    // hack for #4339: a reactivated component with inner transition\n    // does not trigger because the inner node's created hooks are not called\n    // again. It's not ideal to involve module-specific logic in here but\n    // there doesn't seem to be a better way to do it.\n    var innerNode = vnode;\n    while (innerNode.componentInstance) {\n      innerNode = innerNode.componentInstance._vnode;\n      if (isDef(i = innerNode.data) && isDef(i = i.transition)) {\n        for (i = 0; i < cbs.activate.length; ++i) {\n          cbs.activate[i](emptyNode, innerNode);\n        }\n        insertedVnodeQueue.push(innerNode);\n        break\n      }\n    }\n    // unlike a newly created component,\n    // a reactivated keep-alive component doesn't insert itself\n    insert(parentElm, vnode.elm, refElm);\n  }\n\n  function insert (parent, elm, ref$$1) {\n    if (isDef(parent)) {\n      if (isDef(ref$$1)) {\n        if (nodeOps.parentNode(ref$$1) === parent) {\n          nodeOps.insertBefore(parent, elm, ref$$1);\n        }\n      } else {\n        nodeOps.appendChild(parent, elm);\n      }\n    }\n  }\n\n  function createChildren (vnode, children, insertedVnodeQueue) {\n    if (Array.isArray(children)) {\n      if (process.env.NODE_ENV !== 'production') {\n        checkDuplicateKeys(children);\n      }\n      for (var i = 0; i < children.length; ++i) {\n        createElm(children[i], insertedVnodeQueue, vnode.elm, null, true, children, i);\n      }\n    } else if (isPrimitive(vnode.text)) {\n      nodeOps.appendChild(vnode.elm, nodeOps.createTextNode(String(vnode.text)));\n    }\n  }\n\n  function isPatchable (vnode) {\n    while (vnode.componentInstance) {\n      vnode = vnode.componentInstance._vnode;\n    }\n    return isDef(vnode.tag)\n  }\n\n  function invokeCreateHooks (vnode, insertedVnodeQueue) {\n    for (var i$1 = 0; i$1 < cbs.create.length; ++i$1) {\n      cbs.create[i$1](emptyNode, vnode);\n    }\n    i = vnode.data.hook; // Reuse variable\n    if (isDef(i)) {\n      if (isDef(i.create)) { i.create(emptyNode, vnode); }\n      if (isDef(i.insert)) { insertedVnodeQueue.push(vnode); }\n    }\n  }\n\n  // set scope id attribute for scoped CSS.\n  // this is implemented as a special case to avoid the overhead\n  // of going through the normal attribute patching process.\n  function setScope (vnode) {\n    var i;\n    if (isDef(i = vnode.fnScopeId)) {\n      nodeOps.setStyleScope(vnode.elm, i);\n    } else {\n      var ancestor = vnode;\n      while (ancestor) {\n        if (isDef(i = ancestor.context) && isDef(i = i.$options._scopeId)) {\n          nodeOps.setStyleScope(vnode.elm, i);\n        }\n        ancestor = ancestor.parent;\n      }\n    }\n    // for slot content they should also get the scopeId from the host instance.\n    if (isDef(i = activeInstance) &&\n      i !== vnode.context &&\n      i !== vnode.fnContext &&\n      isDef(i = i.$options._scopeId)\n    ) {\n      nodeOps.setStyleScope(vnode.elm, i);\n    }\n  }\n\n  function addVnodes (parentElm, refElm, vnodes, startIdx, endIdx, insertedVnodeQueue) {\n    for (; startIdx <= endIdx; ++startIdx) {\n      createElm(vnodes[startIdx], insertedVnodeQueue, parentElm, refElm, false, vnodes, startIdx);\n    }\n  }\n\n  function invokeDestroyHook (vnode) {\n    var i, j;\n    var data = vnode.data;\n    if (isDef(data)) {\n      if (isDef(i = data.hook) && isDef(i = i.destroy)) { i(vnode); }\n      for (i = 0; i < cbs.destroy.length; ++i) { cbs.destroy[i](vnode); }\n    }\n    if (isDef(i = vnode.children)) {\n      for (j = 0; j < vnode.children.length; ++j) {\n        invokeDestroyHook(vnode.children[j]);\n      }\n    }\n  }\n\n  function removeVnodes (vnodes, startIdx, endIdx) {\n    for (; startIdx <= endIdx; ++startIdx) {\n      var ch = vnodes[startIdx];\n      if (isDef(ch)) {\n        if (isDef(ch.tag)) {\n          removeAndInvokeRemoveHook(ch);\n          invokeDestroyHook(ch);\n        } else { // Text node\n          removeNode(ch.elm);\n        }\n      }\n    }\n  }\n\n  function removeAndInvokeRemoveHook (vnode, rm) {\n    if (isDef(rm) || isDef(vnode.data)) {\n      var i;\n      var listeners = cbs.remove.length + 1;\n      if (isDef(rm)) {\n        // we have a recursively passed down rm callback\n        // increase the listeners count\n        rm.listeners += listeners;\n      } else {\n        // directly removing\n        rm = createRmCb(vnode.elm, listeners);\n      }\n      // recursively invoke hooks on child component root node\n      if (isDef(i = vnode.componentInstance) && isDef(i = i._vnode) && isDef(i.data)) {\n        removeAndInvokeRemoveHook(i, rm);\n      }\n      for (i = 0; i < cbs.remove.length; ++i) {\n        cbs.remove[i](vnode, rm);\n      }\n      if (isDef(i = vnode.data.hook) && isDef(i = i.remove)) {\n        i(vnode, rm);\n      } else {\n        rm();\n      }\n    } else {\n      removeNode(vnode.elm);\n    }\n  }\n\n  function updateChildren (parentElm, oldCh, newCh, insertedVnodeQueue, removeOnly) {\n    var oldStartIdx = 0;\n    var newStartIdx = 0;\n    var oldEndIdx = oldCh.length - 1;\n    var oldStartVnode = oldCh[0];\n    var oldEndVnode = oldCh[oldEndIdx];\n    var newEndIdx = newCh.length - 1;\n    var newStartVnode = newCh[0];\n    var newEndVnode = newCh[newEndIdx];\n    var oldKeyToIdx, idxInOld, vnodeToMove, refElm;\n\n    // removeOnly is a special flag used only by <transition-group>\n    // to ensure removed elements stay in correct relative positions\n    // during leaving transitions\n    var canMove = !removeOnly;\n\n    if (process.env.NODE_ENV !== 'production') {\n      checkDuplicateKeys(newCh);\n    }\n\n    while (oldStartIdx <= oldEndIdx && newStartIdx <= newEndIdx) {\n      if (isUndef(oldStartVnode)) {\n        oldStartVnode = oldCh[++oldStartIdx]; // Vnode has been moved left\n      } else if (isUndef(oldEndVnode)) {\n        oldEndVnode = oldCh[--oldEndIdx];\n      } else if (sameVnode(oldStartVnode, newStartVnode)) {\n        patchVnode(oldStartVnode, newStartVnode, insertedVnodeQueue, newCh, newStartIdx);\n        oldStartVnode = oldCh[++oldStartIdx];\n        newStartVnode = newCh[++newStartIdx];\n      } else if (sameVnode(oldEndVnode, newEndVnode)) {\n        patchVnode(oldEndVnode, newEndVnode, insertedVnodeQueue, newCh, newEndIdx);\n        oldEndVnode = oldCh[--oldEndIdx];\n        newEndVnode = newCh[--newEndIdx];\n      } else if (sameVnode(oldStartVnode, newEndVnode)) { // Vnode moved right\n        patchVnode(oldStartVnode, newEndVnode, insertedVnodeQueue, newCh, newEndIdx);\n        canMove && nodeOps.insertBefore(parentElm, oldStartVnode.elm, nodeOps.nextSibling(oldEndVnode.elm));\n        oldStartVnode = oldCh[++oldStartIdx];\n        newEndVnode = newCh[--newEndIdx];\n      } else if (sameVnode(oldEndVnode, newStartVnode)) { // Vnode moved left\n        patchVnode(oldEndVnode, newStartVnode, insertedVnodeQueue, newCh, newStartIdx);\n        canMove && nodeOps.insertBefore(parentElm, oldEndVnode.elm, oldStartVnode.elm);\n        oldEndVnode = oldCh[--oldEndIdx];\n        newStartVnode = newCh[++newStartIdx];\n      } else {\n        if (isUndef(oldKeyToIdx)) { oldKeyToIdx = createKeyToOldIdx(oldCh, oldStartIdx, oldEndIdx); }\n        idxInOld = isDef(newStartVnode.key)\n          ? oldKeyToIdx[newStartVnode.key]\n          : findIdxInOld(newStartVnode, oldCh, oldStartIdx, oldEndIdx);\n        if (isUndef(idxInOld)) { // New element\n          createElm(newStartVnode, insertedVnodeQueue, parentElm, oldStartVnode.elm, false, newCh, newStartIdx);\n        } else {\n          vnodeToMove = oldCh[idxInOld];\n          if (sameVnode(vnodeToMove, newStartVnode)) {\n            patchVnode(vnodeToMove, newStartVnode, insertedVnodeQueue, newCh, newStartIdx);\n            oldCh[idxInOld] = undefined;\n            canMove && nodeOps.insertBefore(parentElm, vnodeToMove.elm, oldStartVnode.elm);\n          } else {\n            // same key but different element. treat as new element\n            createElm(newStartVnode, insertedVnodeQueue, parentElm, oldStartVnode.elm, false, newCh, newStartIdx);\n          }\n        }\n        newStartVnode = newCh[++newStartIdx];\n      }\n    }\n    if (oldStartIdx > oldEndIdx) {\n      refElm = isUndef(newCh[newEndIdx + 1]) ? null : newCh[newEndIdx + 1].elm;\n      addVnodes(parentElm, refElm, newCh, newStartIdx, newEndIdx, insertedVnodeQueue);\n    } else if (newStartIdx > newEndIdx) {\n      removeVnodes(oldCh, oldStartIdx, oldEndIdx);\n    }\n  }\n\n  function checkDuplicateKeys (children) {\n    var seenKeys = {};\n    for (var i = 0; i < children.length; i++) {\n      var vnode = children[i];\n      var key = vnode.key;\n      if (isDef(key)) {\n        if (seenKeys[key]) {\n          warn(\n            (\"Duplicate keys detected: '\" + key + \"'. This may cause an update error.\"),\n            vnode.context\n          );\n        } else {\n          seenKeys[key] = true;\n        }\n      }\n    }\n  }\n\n  function findIdxInOld (node, oldCh, start, end) {\n    for (var i = start; i < end; i++) {\n      var c = oldCh[i];\n      if (isDef(c) && sameVnode(node, c)) { return i }\n    }\n  }\n\n  function patchVnode (\n    oldVnode,\n    vnode,\n    insertedVnodeQueue,\n    ownerArray,\n    index,\n    removeOnly\n  ) {\n    if (oldVnode === vnode) {\n      return\n    }\n\n    if (isDef(vnode.elm) && isDef(ownerArray)) {\n      // clone reused vnode\n      vnode = ownerArray[index] = cloneVNode(vnode);\n    }\n\n    var elm = vnode.elm = oldVnode.elm;\n\n    if (isTrue(oldVnode.isAsyncPlaceholder)) {\n      if (isDef(vnode.asyncFactory.resolved)) {\n        hydrate(oldVnode.elm, vnode, insertedVnodeQueue);\n      } else {\n        vnode.isAsyncPlaceholder = true;\n      }\n      return\n    }\n\n    // reuse element for static trees.\n    // note we only do this if the vnode is cloned -\n    // if the new node is not cloned it means the render functions have been\n    // reset by the hot-reload-api and we need to do a proper re-render.\n    if (isTrue(vnode.isStatic) &&\n      isTrue(oldVnode.isStatic) &&\n      vnode.key === oldVnode.key &&\n      (isTrue(vnode.isCloned) || isTrue(vnode.isOnce))\n    ) {\n      vnode.componentInstance = oldVnode.componentInstance;\n      return\n    }\n\n    var i;\n    var data = vnode.data;\n    if (isDef(data) && isDef(i = data.hook) && isDef(i = i.prepatch)) {\n      i(oldVnode, vnode);\n    }\n\n    var oldCh = oldVnode.children;\n    var ch = vnode.children;\n    if (isDef(data) && isPatchable(vnode)) {\n      for (i = 0; i < cbs.update.length; ++i) { cbs.update[i](oldVnode, vnode); }\n      if (isDef(i = data.hook) && isDef(i = i.update)) { i(oldVnode, vnode); }\n    }\n    if (isUndef(vnode.text)) {\n      if (isDef(oldCh) && isDef(ch)) {\n        if (oldCh !== ch) { updateChildren(elm, oldCh, ch, insertedVnodeQueue, removeOnly); }\n      } else if (isDef(ch)) {\n        if (process.env.NODE_ENV !== 'production') {\n          checkDuplicateKeys(ch);\n        }\n        if (isDef(oldVnode.text)) { nodeOps.setTextContent(elm, ''); }\n        addVnodes(elm, null, ch, 0, ch.length - 1, insertedVnodeQueue);\n      } else if (isDef(oldCh)) {\n        removeVnodes(oldCh, 0, oldCh.length - 1);\n      } else if (isDef(oldVnode.text)) {\n        nodeOps.setTextContent(elm, '');\n      }\n    } else if (oldVnode.text !== vnode.text) {\n      nodeOps.setTextContent(elm, vnode.text);\n    }\n    if (isDef(data)) {\n      if (isDef(i = data.hook) && isDef(i = i.postpatch)) { i(oldVnode, vnode); }\n    }\n  }\n\n  function invokeInsertHook (vnode, queue, initial) {\n    // delay insert hooks for component root nodes, invoke them after the\n    // element is really inserted\n    if (isTrue(initial) && isDef(vnode.parent)) {\n      vnode.parent.data.pendingInsert = queue;\n    } else {\n      for (var i = 0; i < queue.length; ++i) {\n        queue[i].data.hook.insert(queue[i]);\n      }\n    }\n  }\n\n  var hydrationBailed = false;\n  // list of modules that can skip create hook during hydration because they\n  // are already rendered on the client or has no need for initialization\n  // Note: style is excluded because it relies on initial clone for future\n  // deep updates (#7063).\n  var isRenderedModule = makeMap('attrs,class,staticClass,staticStyle,key');\n\n  // Note: this is a browser-only function so we can assume elms are DOM nodes.\n  function hydrate (elm, vnode, insertedVnodeQueue, inVPre) {\n    var i;\n    var tag = vnode.tag;\n    var data = vnode.data;\n    var children = vnode.children;\n    inVPre = inVPre || (data && data.pre);\n    vnode.elm = elm;\n\n    if (isTrue(vnode.isComment) && isDef(vnode.asyncFactory)) {\n      vnode.isAsyncPlaceholder = true;\n      return true\n    }\n    // assert node match\n    if (process.env.NODE_ENV !== 'production') {\n      if (!assertNodeMatch(elm, vnode, inVPre)) {\n        return false\n      }\n    }\n    if (isDef(data)) {\n      if (isDef(i = data.hook) && isDef(i = i.init)) { i(vnode, true /* hydrating */); }\n      if (isDef(i = vnode.componentInstance)) {\n        // child component. it should have hydrated its own tree.\n        initComponent(vnode, insertedVnodeQueue);\n        return true\n      }\n    }\n    if (isDef(tag)) {\n      if (isDef(children)) {\n        // empty element, allow client to pick up and populate children\n        if (!elm.hasChildNodes()) {\n          createChildren(vnode, children, insertedVnodeQueue);\n        } else {\n          // v-html and domProps: innerHTML\n          if (isDef(i = data) && isDef(i = i.domProps) && isDef(i = i.innerHTML)) {\n            if (i !== elm.innerHTML) {\n              /* istanbul ignore if */\n              if (process.env.NODE_ENV !== 'production' &&\n                typeof console !== 'undefined' &&\n                !hydrationBailed\n              ) {\n                hydrationBailed = true;\n                console.warn('Parent: ', elm);\n                console.warn('server innerHTML: ', i);\n                console.warn('client innerHTML: ', elm.innerHTML);\n              }\n              return false\n            }\n          } else {\n            // iterate and compare children lists\n            var childrenMatch = true;\n            var childNode = elm.firstChild;\n            for (var i$1 = 0; i$1 < children.length; i$1++) {\n              if (!childNode || !hydrate(childNode, children[i$1], insertedVnodeQueue, inVPre)) {\n                childrenMatch = false;\n                break\n              }\n              childNode = childNode.nextSibling;\n            }\n            // if childNode is not null, it means the actual childNodes list is\n            // longer than the virtual children list.\n            if (!childrenMatch || childNode) {\n              /* istanbul ignore if */\n              if (process.env.NODE_ENV !== 'production' &&\n                typeof console !== 'undefined' &&\n                !hydrationBailed\n              ) {\n                hydrationBailed = true;\n                console.warn('Parent: ', elm);\n                console.warn('Mismatching childNodes vs. VNodes: ', elm.childNodes, children);\n              }\n              return false\n            }\n          }\n        }\n      }\n      if (isDef(data)) {\n        var fullInvoke = false;\n        for (var key in data) {\n          if (!isRenderedModule(key)) {\n            fullInvoke = true;\n            invokeCreateHooks(vnode, insertedVnodeQueue);\n            break\n          }\n        }\n        if (!fullInvoke && data['class']) {\n          // ensure collecting deps for deep class bindings for future updates\n          traverse(data['class']);\n        }\n      }\n    } else if (elm.data !== vnode.text) {\n      elm.data = vnode.text;\n    }\n    return true\n  }\n\n  function assertNodeMatch (node, vnode, inVPre) {\n    if (isDef(vnode.tag)) {\n      return vnode.tag.indexOf('vue-component') === 0 || (\n        !isUnknownElement$$1(vnode, inVPre) &&\n        vnode.tag.toLowerCase() === (node.tagName && node.tagName.toLowerCase())\n      )\n    } else {\n      return node.nodeType === (vnode.isComment ? 8 : 3)\n    }\n  }\n\n  return function patch (oldVnode, vnode, hydrating, removeOnly) {\n    if (isUndef(vnode)) {\n      if (isDef(oldVnode)) { invokeDestroyHook(oldVnode); }\n      return\n    }\n\n    var isInitialPatch = false;\n    var insertedVnodeQueue = [];\n\n    if (isUndef(oldVnode)) {\n      // empty mount (likely as component), create new root element\n      isInitialPatch = true;\n      createElm(vnode, insertedVnodeQueue);\n    } else {\n      var isRealElement = isDef(oldVnode.nodeType);\n      if (!isRealElement && sameVnode(oldVnode, vnode)) {\n        // patch existing root node\n        patchVnode(oldVnode, vnode, insertedVnodeQueue, null, null, removeOnly);\n      } else {\n        if (isRealElement) {\n          // mounting to a real element\n          // check if this is server-rendered content and if we can perform\n          // a successful hydration.\n          if (oldVnode.nodeType === 1 && oldVnode.hasAttribute(SSR_ATTR)) {\n            oldVnode.removeAttribute(SSR_ATTR);\n            hydrating = true;\n          }\n          if (isTrue(hydrating)) {\n            if (hydrate(oldVnode, vnode, insertedVnodeQueue)) {\n              invokeInsertHook(vnode, insertedVnodeQueue, true);\n              return oldVnode\n            } else if (process.env.NODE_ENV !== 'production') {\n              warn(\n                'The client-side rendered virtual DOM tree is not matching ' +\n                'server-rendered content. This is likely caused by incorrect ' +\n                'HTML markup, for example nesting block-level elements inside ' +\n                '<p>, or missing <tbody>. Bailing hydration and performing ' +\n                'full client-side render.'\n              );\n            }\n          }\n          // either not server-rendered, or hydration failed.\n          // create an empty node and replace it\n          oldVnode = emptyNodeAt(oldVnode);\n        }\n\n        // replacing existing element\n        var oldElm = oldVnode.elm;\n        var parentElm = nodeOps.parentNode(oldElm);\n\n        // create new node\n        createElm(\n          vnode,\n          insertedVnodeQueue,\n          // extremely rare edge case: do not insert if old element is in a\n          // leaving transition. Only happens when combining transition +\n          // keep-alive + HOCs. (#4590)\n          oldElm._leaveCb ? null : parentElm,\n          nodeOps.nextSibling(oldElm)\n        );\n\n        // update parent placeholder node element, recursively\n        if (isDef(vnode.parent)) {\n          var ancestor = vnode.parent;\n          var patchable = isPatchable(vnode);\n          while (ancestor) {\n            for (var i = 0; i < cbs.destroy.length; ++i) {\n              cbs.destroy[i](ancestor);\n            }\n            ancestor.elm = vnode.elm;\n            if (patchable) {\n              for (var i$1 = 0; i$1 < cbs.create.length; ++i$1) {\n                cbs.create[i$1](emptyNode, ancestor);\n              }\n              // #6513\n              // invoke insert hooks that may have been merged by create hooks.\n              // e.g. for directives that uses the \"inserted\" hook.\n              var insert = ancestor.data.hook.insert;\n              if (insert.merged) {\n                // start at index 1 to avoid re-invoking component mounted hook\n                for (var i$2 = 1; i$2 < insert.fns.length; i$2++) {\n                  insert.fns[i$2]();\n                }\n              }\n            } else {\n              registerRef(ancestor);\n            }\n            ancestor = ancestor.parent;\n          }\n        }\n\n        // destroy old node\n        if (isDef(parentElm)) {\n          removeVnodes([oldVnode], 0, 0);\n        } else if (isDef(oldVnode.tag)) {\n          invokeDestroyHook(oldVnode);\n        }\n      }\n    }\n\n    invokeInsertHook(vnode, insertedVnodeQueue, isInitialPatch);\n    return vnode.elm\n  }\n}\n\n/*  */\n\nvar directives = {\n  create: updateDirectives,\n  update: updateDirectives,\n  destroy: function unbindDirectives (vnode) {\n    updateDirectives(vnode, emptyNode);\n  }\n};\n\nfunction updateDirectives (oldVnode, vnode) {\n  if (oldVnode.data.directives || vnode.data.directives) {\n    _update(oldVnode, vnode);\n  }\n}\n\nfunction _update (oldVnode, vnode) {\n  var isCreate = oldVnode === emptyNode;\n  var isDestroy = vnode === emptyNode;\n  var oldDirs = normalizeDirectives$1(oldVnode.data.directives, oldVnode.context);\n  var newDirs = normalizeDirectives$1(vnode.data.directives, vnode.context);\n\n  var dirsWithInsert = [];\n  var dirsWithPostpatch = [];\n\n  var key, oldDir, dir;\n  for (key in newDirs) {\n    oldDir = oldDirs[key];\n    dir = newDirs[key];\n    if (!oldDir) {\n      // new directive, bind\n      callHook$1(dir, 'bind', vnode, oldVnode);\n      if (dir.def && dir.def.inserted) {\n        dirsWithInsert.push(dir);\n      }\n    } else {\n      // existing directive, update\n      dir.oldValue = oldDir.value;\n      dir.oldArg = oldDir.arg;\n      callHook$1(dir, 'update', vnode, oldVnode);\n      if (dir.def && dir.def.componentUpdated) {\n        dirsWithPostpatch.push(dir);\n      }\n    }\n  }\n\n  if (dirsWithInsert.length) {\n    var callInsert = function () {\n      for (var i = 0; i < dirsWithInsert.length; i++) {\n        callHook$1(dirsWithInsert[i], 'inserted', vnode, oldVnode);\n      }\n    };\n    if (isCreate) {\n      mergeVNodeHook(vnode, 'insert', callInsert);\n    } else {\n      callInsert();\n    }\n  }\n\n  if (dirsWithPostpatch.length) {\n    mergeVNodeHook(vnode, 'postpatch', function () {\n      for (var i = 0; i < dirsWithPostpatch.length; i++) {\n        callHook$1(dirsWithPostpatch[i], 'componentUpdated', vnode, oldVnode);\n      }\n    });\n  }\n\n  if (!isCreate) {\n    for (key in oldDirs) {\n      if (!newDirs[key]) {\n        // no longer present, unbind\n        callHook$1(oldDirs[key], 'unbind', oldVnode, oldVnode, isDestroy);\n      }\n    }\n  }\n}\n\nvar emptyModifiers = Object.create(null);\n\nfunction normalizeDirectives$1 (\n  dirs,\n  vm\n) {\n  var res = Object.create(null);\n  if (!dirs) {\n    // $flow-disable-line\n    return res\n  }\n  var i, dir;\n  for (i = 0; i < dirs.length; i++) {\n    dir = dirs[i];\n    if (!dir.modifiers) {\n      // $flow-disable-line\n      dir.modifiers = emptyModifiers;\n    }\n    res[getRawDirName(dir)] = dir;\n    dir.def = resolveAsset(vm.$options, 'directives', dir.name, true);\n  }\n  // $flow-disable-line\n  return res\n}\n\nfunction getRawDirName (dir) {\n  return dir.rawName || ((dir.name) + \".\" + (Object.keys(dir.modifiers || {}).join('.')))\n}\n\nfunction callHook$1 (dir, hook, vnode, oldVnode, isDestroy) {\n  var fn = dir.def && dir.def[hook];\n  if (fn) {\n    try {\n      fn(vnode.elm, dir, vnode, oldVnode, isDestroy);\n    } catch (e) {\n      handleError(e, vnode.context, (\"directive \" + (dir.name) + \" \" + hook + \" hook\"));\n    }\n  }\n}\n\nvar baseModules = [\n  ref,\n  directives\n];\n\n/*  */\n\nfunction updateAttrs (oldVnode, vnode) {\n  var opts = vnode.componentOptions;\n  if (isDef(opts) && opts.Ctor.options.inheritAttrs === false) {\n    return\n  }\n  if (isUndef(oldVnode.data.attrs) && isUndef(vnode.data.attrs)) {\n    return\n  }\n  var key, cur, old;\n  var elm = vnode.elm;\n  var oldAttrs = oldVnode.data.attrs || {};\n  var attrs = vnode.data.attrs || {};\n  // clone observed objects, as the user probably wants to mutate it\n  if (isDef(attrs.__ob__)) {\n    attrs = vnode.data.attrs = extend({}, attrs);\n  }\n\n  for (key in attrs) {\n    cur = attrs[key];\n    old = oldAttrs[key];\n    if (old !== cur) {\n      setAttr(elm, key, cur);\n    }\n  }\n  // #4391: in IE9, setting type can reset value for input[type=radio]\n  // #6666: IE/Edge forces progress value down to 1 before setting a max\n  /* istanbul ignore if */\n  if ((isIE || isEdge) && attrs.value !== oldAttrs.value) {\n    setAttr(elm, 'value', attrs.value);\n  }\n  for (key in oldAttrs) {\n    if (isUndef(attrs[key])) {\n      if (isXlink(key)) {\n        elm.removeAttributeNS(xlinkNS, getXlinkProp(key));\n      } else if (!isEnumeratedAttr(key)) {\n        elm.removeAttribute(key);\n      }\n    }\n  }\n}\n\nfunction setAttr (el, key, value) {\n  if (el.tagName.indexOf('-') > -1) {\n    baseSetAttr(el, key, value);\n  } else if (isBooleanAttr(key)) {\n    // set attribute for blank value\n    // e.g. <option disabled>Select one</option>\n    if (isFalsyAttrValue(value)) {\n      el.removeAttribute(key);\n    } else {\n      // technically allowfullscreen is a boolean attribute for <iframe>,\n      // but Flash expects a value of \"true\" when used on <embed> tag\n      value = key === 'allowfullscreen' && el.tagName === 'EMBED'\n        ? 'true'\n        : key;\n      el.setAttribute(key, value);\n    }\n  } else if (isEnumeratedAttr(key)) {\n    el.setAttribute(key, convertEnumeratedValue(key, value));\n  } else if (isXlink(key)) {\n    if (isFalsyAttrValue(value)) {\n      el.removeAttributeNS(xlinkNS, getXlinkProp(key));\n    } else {\n      el.setAttributeNS(xlinkNS, key, value);\n    }\n  } else {\n    baseSetAttr(el, key, value);\n  }\n}\n\nfunction baseSetAttr (el, key, value) {\n  if (isFalsyAttrValue(value)) {\n    el.removeAttribute(key);\n  } else {\n    // #7138: IE10 & 11 fires input event when setting placeholder on\n    // <textarea>... block the first input event and remove the blocker\n    // immediately.\n    /* istanbul ignore if */\n    if (\n      isIE && !isIE9 &&\n      el.tagName === 'TEXTAREA' &&\n      key === 'placeholder' && value !== '' && !el.__ieph\n    ) {\n      var blocker = function (e) {\n        e.stopImmediatePropagation();\n        el.removeEventListener('input', blocker);\n      };\n      el.addEventListener('input', blocker);\n      // $flow-disable-line\n      el.__ieph = true; /* IE placeholder patched */\n    }\n    el.setAttribute(key, value);\n  }\n}\n\nvar attrs = {\n  create: updateAttrs,\n  update: updateAttrs\n};\n\n/*  */\n\nfunction updateClass (oldVnode, vnode) {\n  var el = vnode.elm;\n  var data = vnode.data;\n  var oldData = oldVnode.data;\n  if (\n    isUndef(data.staticClass) &&\n    isUndef(data.class) && (\n      isUndef(oldData) || (\n        isUndef(oldData.staticClass) &&\n        isUndef(oldData.class)\n      )\n    )\n  ) {\n    return\n  }\n\n  var cls = genClassForVnode(vnode);\n\n  // handle transition classes\n  var transitionClass = el._transitionClasses;\n  if (isDef(transitionClass)) {\n    cls = concat(cls, stringifyClass(transitionClass));\n  }\n\n  // set the class\n  if (cls !== el._prevClass) {\n    el.setAttribute('class', cls);\n    el._prevClass = cls;\n  }\n}\n\nvar klass = {\n  create: updateClass,\n  update: updateClass\n};\n\n/*  */\n\n/*  */\n\n/*  */\n\n/*  */\n\n// in some cases, the event used has to be determined at runtime\n// so we used some reserved tokens during compile.\nvar RANGE_TOKEN = '__r';\nvar CHECKBOX_RADIO_TOKEN = '__c';\n\n/*  */\n\n// normalize v-model event tokens that can only be determined at runtime.\n// it's important to place the event as the first in the array because\n// the whole point is ensuring the v-model callback gets called before\n// user-attached handlers.\nfunction normalizeEvents (on) {\n  /* istanbul ignore if */\n  if (isDef(on[RANGE_TOKEN])) {\n    // IE input[type=range] only supports `change` event\n    var event = isIE ? 'change' : 'input';\n    on[event] = [].concat(on[RANGE_TOKEN], on[event] || []);\n    delete on[RANGE_TOKEN];\n  }\n  // This was originally intended to fix #4521 but no longer necessary\n  // after 2.5. Keeping it for backwards compat with generated code from < 2.4\n  /* istanbul ignore if */\n  if (isDef(on[CHECKBOX_RADIO_TOKEN])) {\n    on.change = [].concat(on[CHECKBOX_RADIO_TOKEN], on.change || []);\n    delete on[CHECKBOX_RADIO_TOKEN];\n  }\n}\n\nvar target$1;\n\nfunction createOnceHandler$1 (event, handler, capture) {\n  var _target = target$1; // save current target element in closure\n  return function onceHandler () {\n    var res = handler.apply(null, arguments);\n    if (res !== null) {\n      remove$2(event, onceHandler, capture, _target);\n    }\n  }\n}\n\n// #9446: Firefox <= 53 (in particular, ESR 52) has incorrect Event.timeStamp\n// implementation and does not fire microtasks in between event propagation, so\n// safe to exclude.\nvar useMicrotaskFix = isUsingMicroTask && !(isFF && Number(isFF[1]) <= 53);\n\nfunction add$1 (\n  name,\n  handler,\n  capture,\n  passive\n) {\n  // async edge case #6566: inner click event triggers patch, event handler\n  // attached to outer element during patch, and triggered again. This\n  // happens because browsers fire microtask ticks between event propagation.\n  // the solution is simple: we save the timestamp when a handler is attached,\n  // and the handler would only fire if the event passed to it was fired\n  // AFTER it was attached.\n  if (useMicrotaskFix) {\n    var attachedTimestamp = currentFlushTimestamp;\n    var original = handler;\n    handler = original._wrapper = function (e) {\n      if (\n        // no bubbling, should always fire.\n        // this is just a safety net in case event.timeStamp is unreliable in\n        // certain weird environments...\n        e.target === e.currentTarget ||\n        // event is fired after handler attachment\n        e.timeStamp >= attachedTimestamp ||\n        // bail for environments that have buggy event.timeStamp implementations\n        // #9462 iOS 9 bug: event.timeStamp is 0 after history.pushState\n        // #9681 QtWebEngine event.timeStamp is negative value\n        e.timeStamp <= 0 ||\n        // #9448 bail if event is fired in another document in a multi-page\n        // electron/nw.js app, since event.timeStamp will be using a different\n        // starting reference\n        e.target.ownerDocument !== document\n      ) {\n        return original.apply(this, arguments)\n      }\n    };\n  }\n  target$1.addEventListener(\n    name,\n    handler,\n    supportsPassive\n      ? { capture: capture, passive: passive }\n      : capture\n  );\n}\n\nfunction remove$2 (\n  name,\n  handler,\n  capture,\n  _target\n) {\n  (_target || target$1).removeEventListener(\n    name,\n    handler._wrapper || handler,\n    capture\n  );\n}\n\nfunction updateDOMListeners (oldVnode, vnode) {\n  if (isUndef(oldVnode.data.on) && isUndef(vnode.data.on)) {\n    return\n  }\n  var on = vnode.data.on || {};\n  var oldOn = oldVnode.data.on || {};\n  target$1 = vnode.elm;\n  normalizeEvents(on);\n  updateListeners(on, oldOn, add$1, remove$2, createOnceHandler$1, vnode.context);\n  target$1 = undefined;\n}\n\nvar events = {\n  create: updateDOMListeners,\n  update: updateDOMListeners\n};\n\n/*  */\n\nvar svgContainer;\n\nfunction updateDOMProps (oldVnode, vnode) {\n  if (isUndef(oldVnode.data.domProps) && isUndef(vnode.data.domProps)) {\n    return\n  }\n  var key, cur;\n  var elm = vnode.elm;\n  var oldProps = oldVnode.data.domProps || {};\n  var props = vnode.data.domProps || {};\n  // clone observed objects, as the user probably wants to mutate it\n  if (isDef(props.__ob__)) {\n    props = vnode.data.domProps = extend({}, props);\n  }\n\n  for (key in oldProps) {\n    if (!(key in props)) {\n      elm[key] = '';\n    }\n  }\n\n  for (key in props) {\n    cur = props[key];\n    // ignore children if the node has textContent or innerHTML,\n    // as these will throw away existing DOM nodes and cause removal errors\n    // on subsequent patches (#3360)\n    if (key === 'textContent' || key === 'innerHTML') {\n      if (vnode.children) { vnode.children.length = 0; }\n      if (cur === oldProps[key]) { continue }\n      // #6601 work around Chrome version <= 55 bug where single textNode\n      // replaced by innerHTML/textContent retains its parentNode property\n      if (elm.childNodes.length === 1) {\n        elm.removeChild(elm.childNodes[0]);\n      }\n    }\n\n    if (key === 'value' && elm.tagName !== 'PROGRESS') {\n      // store value as _value as well since\n      // non-string values will be stringified\n      elm._value = cur;\n      // avoid resetting cursor position when value is the same\n      var strCur = isUndef(cur) ? '' : String(cur);\n      if (shouldUpdateValue(elm, strCur)) {\n        elm.value = strCur;\n      }\n    } else if (key === 'innerHTML' && isSVG(elm.tagName) && isUndef(elm.innerHTML)) {\n      // IE doesn't support innerHTML for SVG elements\n      svgContainer = svgContainer || document.createElement('div');\n      svgContainer.innerHTML = \"<svg>\" + cur + \"</svg>\";\n      var svg = svgContainer.firstChild;\n      while (elm.firstChild) {\n        elm.removeChild(elm.firstChild);\n      }\n      while (svg.firstChild) {\n        elm.appendChild(svg.firstChild);\n      }\n    } else if (\n      // skip the update if old and new VDOM state is the same.\n      // `value` is handled separately because the DOM value may be temporarily\n      // out of sync with VDOM state due to focus, composition and modifiers.\n      // This  #4521 by skipping the unnecesarry `checked` update.\n      cur !== oldProps[key]\n    ) {\n      // some property updates can throw\n      // e.g. `value` on <progress> w/ non-finite value\n      try {\n        elm[key] = cur;\n      } catch (e) {}\n    }\n  }\n}\n\n// check platforms/web/util/attrs.js acceptValue\n\n\nfunction shouldUpdateValue (elm, checkVal) {\n  return (!elm.composing && (\n    elm.tagName === 'OPTION' ||\n    isNotInFocusAndDirty(elm, checkVal) ||\n    isDirtyWithModifiers(elm, checkVal)\n  ))\n}\n\nfunction isNotInFocusAndDirty (elm, checkVal) {\n  // return true when textbox (.number and .trim) loses focus and its value is\n  // not equal to the updated value\n  var notInFocus = true;\n  // #6157\n  // work around IE bug when accessing document.activeElement in an iframe\n  try { notInFocus = document.activeElement !== elm; } catch (e) {}\n  return notInFocus && elm.value !== checkVal\n}\n\nfunction isDirtyWithModifiers (elm, newVal) {\n  var value = elm.value;\n  var modifiers = elm._vModifiers; // injected by v-model runtime\n  if (isDef(modifiers)) {\n    if (modifiers.number) {\n      return toNumber(value) !== toNumber(newVal)\n    }\n    if (modifiers.trim) {\n      return value.trim() !== newVal.trim()\n    }\n  }\n  return value !== newVal\n}\n\nvar domProps = {\n  create: updateDOMProps,\n  update: updateDOMProps\n};\n\n/*  */\n\nvar parseStyleText = cached(function (cssText) {\n  var res = {};\n  var listDelimiter = /;(?![^(]*\\))/g;\n  var propertyDelimiter = /:(.+)/;\n  cssText.split(listDelimiter).forEach(function (item) {\n    if (item) {\n      var tmp = item.split(propertyDelimiter);\n      tmp.length > 1 && (res[tmp[0].trim()] = tmp[1].trim());\n    }\n  });\n  return res\n});\n\n// merge static and dynamic style data on the same vnode\nfunction normalizeStyleData (data) {\n  var style = normalizeStyleBinding(data.style);\n  // static style is pre-processed into an object during compilation\n  // and is always a fresh object, so it's safe to merge into it\n  return data.staticStyle\n    ? extend(data.staticStyle, style)\n    : style\n}\n\n// normalize possible array / string values into Object\nfunction normalizeStyleBinding (bindingStyle) {\n  if (Array.isArray(bindingStyle)) {\n    return toObject(bindingStyle)\n  }\n  if (typeof bindingStyle === 'string') {\n    return parseStyleText(bindingStyle)\n  }\n  return bindingStyle\n}\n\n/**\n * parent component style should be after child's\n * so that parent component's style could override it\n */\nfunction getStyle (vnode, checkChild) {\n  var res = {};\n  var styleData;\n\n  if (checkChild) {\n    var childNode = vnode;\n    while (childNode.componentInstance) {\n      childNode = childNode.componentInstance._vnode;\n      if (\n        childNode && childNode.data &&\n        (styleData = normalizeStyleData(childNode.data))\n      ) {\n        extend(res, styleData);\n      }\n    }\n  }\n\n  if ((styleData = normalizeStyleData(vnode.data))) {\n    extend(res, styleData);\n  }\n\n  var parentNode = vnode;\n  while ((parentNode = parentNode.parent)) {\n    if (parentNode.data && (styleData = normalizeStyleData(parentNode.data))) {\n      extend(res, styleData);\n    }\n  }\n  return res\n}\n\n/*  */\n\nvar cssVarRE = /^--/;\nvar importantRE = /\\s*!important$/;\nvar setProp = function (el, name, val) {\n  /* istanbul ignore if */\n  if (cssVarRE.test(name)) {\n    el.style.setProperty(name, val);\n  } else if (importantRE.test(val)) {\n    el.style.setProperty(hyphenate(name), val.replace(importantRE, ''), 'important');\n  } else {\n    var normalizedName = normalize(name);\n    if (Array.isArray(val)) {\n      // Support values array created by autoprefixer, e.g.\n      // {display: [\"-webkit-box\", \"-ms-flexbox\", \"flex\"]}\n      // Set them one by one, and the browser will only set those it can recognize\n      for (var i = 0, len = val.length; i < len; i++) {\n        el.style[normalizedName] = val[i];\n      }\n    } else {\n      el.style[normalizedName] = val;\n    }\n  }\n};\n\nvar vendorNames = ['Webkit', 'Moz', 'ms'];\n\nvar emptyStyle;\nvar normalize = cached(function (prop) {\n  emptyStyle = emptyStyle || document.createElement('div').style;\n  prop = camelize(prop);\n  if (prop !== 'filter' && (prop in emptyStyle)) {\n    return prop\n  }\n  var capName = prop.charAt(0).toUpperCase() + prop.slice(1);\n  for (var i = 0; i < vendorNames.length; i++) {\n    var name = vendorNames[i] + capName;\n    if (name in emptyStyle) {\n      return name\n    }\n  }\n});\n\nfunction updateStyle (oldVnode, vnode) {\n  var data = vnode.data;\n  var oldData = oldVnode.data;\n\n  if (isUndef(data.staticStyle) && isUndef(data.style) &&\n    isUndef(oldData.staticStyle) && isUndef(oldData.style)\n  ) {\n    return\n  }\n\n  var cur, name;\n  var el = vnode.elm;\n  var oldStaticStyle = oldData.staticStyle;\n  var oldStyleBinding = oldData.normalizedStyle || oldData.style || {};\n\n  // if static style exists, stylebinding already merged into it when doing normalizeStyleData\n  var oldStyle = oldStaticStyle || oldStyleBinding;\n\n  var style = normalizeStyleBinding(vnode.data.style) || {};\n\n  // store normalized style under a different key for next diff\n  // make sure to clone it if it's reactive, since the user likely wants\n  // to mutate it.\n  vnode.data.normalizedStyle = isDef(style.__ob__)\n    ? extend({}, style)\n    : style;\n\n  var newStyle = getStyle(vnode, true);\n\n  for (name in oldStyle) {\n    if (isUndef(newStyle[name])) {\n      setProp(el, name, '');\n    }\n  }\n  for (name in newStyle) {\n    cur = newStyle[name];\n    if (cur !== oldStyle[name]) {\n      // ie9 setting to null has no effect, must use empty string\n      setProp(el, name, cur == null ? '' : cur);\n    }\n  }\n}\n\nvar style = {\n  create: updateStyle,\n  update: updateStyle\n};\n\n/*  */\n\nvar whitespaceRE = /\\s+/;\n\n/**\n * Add class with compatibility for SVG since classList is not supported on\n * SVG elements in IE\n */\nfunction addClass (el, cls) {\n  /* istanbul ignore if */\n  if (!cls || !(cls = cls.trim())) {\n    return\n  }\n\n  /* istanbul ignore else */\n  if (el.classList) {\n    if (cls.indexOf(' ') > -1) {\n      cls.split(whitespaceRE).forEach(function (c) { return el.classList.add(c); });\n    } else {\n      el.classList.add(cls);\n    }\n  } else {\n    var cur = \" \" + (el.getAttribute('class') || '') + \" \";\n    if (cur.indexOf(' ' + cls + ' ') < 0) {\n      el.setAttribute('class', (cur + cls).trim());\n    }\n  }\n}\n\n/**\n * Remove class with compatibility for SVG since classList is not supported on\n * SVG elements in IE\n */\nfunction removeClass (el, cls) {\n  /* istanbul ignore if */\n  if (!cls || !(cls = cls.trim())) {\n    return\n  }\n\n  /* istanbul ignore else */\n  if (el.classList) {\n    if (cls.indexOf(' ') > -1) {\n      cls.split(whitespaceRE).forEach(function (c) { return el.classList.remove(c); });\n    } else {\n      el.classList.remove(cls);\n    }\n    if (!el.classList.length) {\n      el.removeAttribute('class');\n    }\n  } else {\n    var cur = \" \" + (el.getAttribute('class') || '') + \" \";\n    var tar = ' ' + cls + ' ';\n    while (cur.indexOf(tar) >= 0) {\n      cur = cur.replace(tar, ' ');\n    }\n    cur = cur.trim();\n    if (cur) {\n      el.setAttribute('class', cur);\n    } else {\n      el.removeAttribute('class');\n    }\n  }\n}\n\n/*  */\n\nfunction resolveTransition (def$$1) {\n  if (!def$$1) {\n    return\n  }\n  /* istanbul ignore else */\n  if (typeof def$$1 === 'object') {\n    var res = {};\n    if (def$$1.css !== false) {\n      extend(res, autoCssTransition(def$$1.name || 'v'));\n    }\n    extend(res, def$$1);\n    return res\n  } else if (typeof def$$1 === 'string') {\n    return autoCssTransition(def$$1)\n  }\n}\n\nvar autoCssTransition = cached(function (name) {\n  return {\n    enterClass: (name + \"-enter\"),\n    enterToClass: (name + \"-enter-to\"),\n    enterActiveClass: (name + \"-enter-active\"),\n    leaveClass: (name + \"-leave\"),\n    leaveToClass: (name + \"-leave-to\"),\n    leaveActiveClass: (name + \"-leave-active\")\n  }\n});\n\nvar hasTransition = inBrowser && !isIE9;\nvar TRANSITION = 'transition';\nvar ANIMATION = 'animation';\n\n// Transition property/event sniffing\nvar transitionProp = 'transition';\nvar transitionEndEvent = 'transitionend';\nvar animationProp = 'animation';\nvar animationEndEvent = 'animationend';\nif (hasTransition) {\n  /* istanbul ignore if */\n  if (window.ontransitionend === undefined &&\n    window.onwebkittransitionend !== undefined\n  ) {\n    transitionProp = 'WebkitTransition';\n    transitionEndEvent = 'webkitTransitionEnd';\n  }\n  if (window.onanimationend === undefined &&\n    window.onwebkitanimationend !== undefined\n  ) {\n    animationProp = 'WebkitAnimation';\n    animationEndEvent = 'webkitAnimationEnd';\n  }\n}\n\n// binding to window is necessary to make hot reload work in IE in strict mode\nvar raf = inBrowser\n  ? window.requestAnimationFrame\n    ? window.requestAnimationFrame.bind(window)\n    : setTimeout\n  : /* istanbul ignore next */ function (fn) { return fn(); };\n\nfunction nextFrame (fn) {\n  raf(function () {\n    raf(fn);\n  });\n}\n\nfunction addTransitionClass (el, cls) {\n  var transitionClasses = el._transitionClasses || (el._transitionClasses = []);\n  if (transitionClasses.indexOf(cls) < 0) {\n    transitionClasses.push(cls);\n    addClass(el, cls);\n  }\n}\n\nfunction removeTransitionClass (el, cls) {\n  if (el._transitionClasses) {\n    remove(el._transitionClasses, cls);\n  }\n  removeClass(el, cls);\n}\n\nfunction whenTransitionEnds (\n  el,\n  expectedType,\n  cb\n) {\n  var ref = getTransitionInfo(el, expectedType);\n  var type = ref.type;\n  var timeout = ref.timeout;\n  var propCount = ref.propCount;\n  if (!type) { return cb() }\n  var event = type === TRANSITION ? transitionEndEvent : animationEndEvent;\n  var ended = 0;\n  var end = function () {\n    el.removeEventListener(event, onEnd);\n    cb();\n  };\n  var onEnd = function (e) {\n    if (e.target === el) {\n      if (++ended >= propCount) {\n        end();\n      }\n    }\n  };\n  setTimeout(function () {\n    if (ended < propCount) {\n      end();\n    }\n  }, timeout + 1);\n  el.addEventListener(event, onEnd);\n}\n\nvar transformRE = /\\b(transform|all)(,|$)/;\n\nfunction getTransitionInfo (el, expectedType) {\n  var styles = window.getComputedStyle(el);\n  // JSDOM may return undefined for transition properties\n  var transitionDelays = (styles[transitionProp + 'Delay'] || '').split(', ');\n  var transitionDurations = (styles[transitionProp + 'Duration'] || '').split(', ');\n  var transitionTimeout = getTimeout(transitionDelays, transitionDurations);\n  var animationDelays = (styles[animationProp + 'Delay'] || '').split(', ');\n  var animationDurations = (styles[animationProp + 'Duration'] || '').split(', ');\n  var animationTimeout = getTimeout(animationDelays, animationDurations);\n\n  var type;\n  var timeout = 0;\n  var propCount = 0;\n  /* istanbul ignore if */\n  if (expectedType === TRANSITION) {\n    if (transitionTimeout > 0) {\n      type = TRANSITION;\n      timeout = transitionTimeout;\n      propCount = transitionDurations.length;\n    }\n  } else if (expectedType === ANIMATION) {\n    if (animationTimeout > 0) {\n      type = ANIMATION;\n      timeout = animationTimeout;\n      propCount = animationDurations.length;\n    }\n  } else {\n    timeout = Math.max(transitionTimeout, animationTimeout);\n    type = timeout > 0\n      ? transitionTimeout > animationTimeout\n        ? TRANSITION\n        : ANIMATION\n      : null;\n    propCount = type\n      ? type === TRANSITION\n        ? transitionDurations.length\n        : animationDurations.length\n      : 0;\n  }\n  var hasTransform =\n    type === TRANSITION &&\n    transformRE.test(styles[transitionProp + 'Property']);\n  return {\n    type: type,\n    timeout: timeout,\n    propCount: propCount,\n    hasTransform: hasTransform\n  }\n}\n\nfunction getTimeout (delays, durations) {\n  /* istanbul ignore next */\n  while (delays.length < durations.length) {\n    delays = delays.concat(delays);\n  }\n\n  return Math.max.apply(null, durations.map(function (d, i) {\n    return toMs(d) + toMs(delays[i])\n  }))\n}\n\n// Old versions of Chromium (below 61.0.3163.100) formats floating pointer numbers\n// in a locale-dependent way, using a comma instead of a dot.\n// If comma is not replaced with a dot, the input will be rounded down (i.e. acting\n// as a floor function) causing unexpected behaviors\nfunction toMs (s) {\n  return Number(s.slice(0, -1).replace(',', '.')) * 1000\n}\n\n/*  */\n\nfunction enter (vnode, toggleDisplay) {\n  var el = vnode.elm;\n\n  // call leave callback now\n  if (isDef(el._leaveCb)) {\n    el._leaveCb.cancelled = true;\n    el._leaveCb();\n  }\n\n  var data = resolveTransition(vnode.data.transition);\n  if (isUndef(data)) {\n    return\n  }\n\n  /* istanbul ignore if */\n  if (isDef(el._enterCb) || el.nodeType !== 1) {\n    return\n  }\n\n  var css = data.css;\n  var type = data.type;\n  var enterClass = data.enterClass;\n  var enterToClass = data.enterToClass;\n  var enterActiveClass = data.enterActiveClass;\n  var appearClass = data.appearClass;\n  var appearToClass = data.appearToClass;\n  var appearActiveClass = data.appearActiveClass;\n  var beforeEnter = data.beforeEnter;\n  var enter = data.enter;\n  var afterEnter = data.afterEnter;\n  var enterCancelled = data.enterCancelled;\n  var beforeAppear = data.beforeAppear;\n  var appear = data.appear;\n  var afterAppear = data.afterAppear;\n  var appearCancelled = data.appearCancelled;\n  var duration = data.duration;\n\n  // activeInstance will always be the <transition> component managing this\n  // transition. One edge case to check is when the <transition> is placed\n  // as the root node of a child component. In that case we need to check\n  // <transition>'s parent for appear check.\n  var context = activeInstance;\n  var transitionNode = activeInstance.$vnode;\n  while (transitionNode && transitionNode.parent) {\n    context = transitionNode.context;\n    transitionNode = transitionNode.parent;\n  }\n\n  var isAppear = !context._isMounted || !vnode.isRootInsert;\n\n  if (isAppear && !appear && appear !== '') {\n    return\n  }\n\n  var startClass = isAppear && appearClass\n    ? appearClass\n    : enterClass;\n  var activeClass = isAppear && appearActiveClass\n    ? appearActiveClass\n    : enterActiveClass;\n  var toClass = isAppear && appearToClass\n    ? appearToClass\n    : enterToClass;\n\n  var beforeEnterHook = isAppear\n    ? (beforeAppear || beforeEnter)\n    : beforeEnter;\n  var enterHook = isAppear\n    ? (typeof appear === 'function' ? appear : enter)\n    : enter;\n  var afterEnterHook = isAppear\n    ? (afterAppear || afterEnter)\n    : afterEnter;\n  var enterCancelledHook = isAppear\n    ? (appearCancelled || enterCancelled)\n    : enterCancelled;\n\n  var explicitEnterDuration = toNumber(\n    isObject(duration)\n      ? duration.enter\n      : duration\n  );\n\n  if (process.env.NODE_ENV !== 'production' && explicitEnterDuration != null) {\n    checkDuration(explicitEnterDuration, 'enter', vnode);\n  }\n\n  var expectsCSS = css !== false && !isIE9;\n  var userWantsControl = getHookArgumentsLength(enterHook);\n\n  var cb = el._enterCb = once(function () {\n    if (expectsCSS) {\n      removeTransitionClass(el, toClass);\n      removeTransitionClass(el, activeClass);\n    }\n    if (cb.cancelled) {\n      if (expectsCSS) {\n        removeTransitionClass(el, startClass);\n      }\n      enterCancelledHook && enterCancelledHook(el);\n    } else {\n      afterEnterHook && afterEnterHook(el);\n    }\n    el._enterCb = null;\n  });\n\n  if (!vnode.data.show) {\n    // remove pending leave element on enter by injecting an insert hook\n    mergeVNodeHook(vnode, 'insert', function () {\n      var parent = el.parentNode;\n      var pendingNode = parent && parent._pending && parent._pending[vnode.key];\n      if (pendingNode &&\n        pendingNode.tag === vnode.tag &&\n        pendingNode.elm._leaveCb\n      ) {\n        pendingNode.elm._leaveCb();\n      }\n      enterHook && enterHook(el, cb);\n    });\n  }\n\n  // start enter transition\n  beforeEnterHook && beforeEnterHook(el);\n  if (expectsCSS) {\n    addTransitionClass(el, startClass);\n    addTransitionClass(el, activeClass);\n    nextFrame(function () {\n      removeTransitionClass(el, startClass);\n      if (!cb.cancelled) {\n        addTransitionClass(el, toClass);\n        if (!userWantsControl) {\n          if (isValidDuration(explicitEnterDuration)) {\n            setTimeout(cb, explicitEnterDuration);\n          } else {\n            whenTransitionEnds(el, type, cb);\n          }\n        }\n      }\n    });\n  }\n\n  if (vnode.data.show) {\n    toggleDisplay && toggleDisplay();\n    enterHook && enterHook(el, cb);\n  }\n\n  if (!expectsCSS && !userWantsControl) {\n    cb();\n  }\n}\n\nfunction leave (vnode, rm) {\n  var el = vnode.elm;\n\n  // call enter callback now\n  if (isDef(el._enterCb)) {\n    el._enterCb.cancelled = true;\n    el._enterCb();\n  }\n\n  var data = resolveTransition(vnode.data.transition);\n  if (isUndef(data) || el.nodeType !== 1) {\n    return rm()\n  }\n\n  /* istanbul ignore if */\n  if (isDef(el._leaveCb)) {\n    return\n  }\n\n  var css = data.css;\n  var type = data.type;\n  var leaveClass = data.leaveClass;\n  var leaveToClass = data.leaveToClass;\n  var leaveActiveClass = data.leaveActiveClass;\n  var beforeLeave = data.beforeLeave;\n  var leave = data.leave;\n  var afterLeave = data.afterLeave;\n  var leaveCancelled = data.leaveCancelled;\n  var delayLeave = data.delayLeave;\n  var duration = data.duration;\n\n  var expectsCSS = css !== false && !isIE9;\n  var userWantsControl = getHookArgumentsLength(leave);\n\n  var explicitLeaveDuration = toNumber(\n    isObject(duration)\n      ? duration.leave\n      : duration\n  );\n\n  if (process.env.NODE_ENV !== 'production' && isDef(explicitLeaveDuration)) {\n    checkDuration(explicitLeaveDuration, 'leave', vnode);\n  }\n\n  var cb = el._leaveCb = once(function () {\n    if (el.parentNode && el.parentNode._pending) {\n      el.parentNode._pending[vnode.key] = null;\n    }\n    if (expectsCSS) {\n      removeTransitionClass(el, leaveToClass);\n      removeTransitionClass(el, leaveActiveClass);\n    }\n    if (cb.cancelled) {\n      if (expectsCSS) {\n        removeTransitionClass(el, leaveClass);\n      }\n      leaveCancelled && leaveCancelled(el);\n    } else {\n      rm();\n      afterLeave && afterLeave(el);\n    }\n    el._leaveCb = null;\n  });\n\n  if (delayLeave) {\n    delayLeave(performLeave);\n  } else {\n    performLeave();\n  }\n\n  function performLeave () {\n    // the delayed leave may have already been cancelled\n    if (cb.cancelled) {\n      return\n    }\n    // record leaving element\n    if (!vnode.data.show && el.parentNode) {\n      (el.parentNode._pending || (el.parentNode._pending = {}))[(vnode.key)] = vnode;\n    }\n    beforeLeave && beforeLeave(el);\n    if (expectsCSS) {\n      addTransitionClass(el, leaveClass);\n      addTransitionClass(el, leaveActiveClass);\n      nextFrame(function () {\n        removeTransitionClass(el, leaveClass);\n        if (!cb.cancelled) {\n          addTransitionClass(el, leaveToClass);\n          if (!userWantsControl) {\n            if (isValidDuration(explicitLeaveDuration)) {\n              setTimeout(cb, explicitLeaveDuration);\n            } else {\n              whenTransitionEnds(el, type, cb);\n            }\n          }\n        }\n      });\n    }\n    leave && leave(el, cb);\n    if (!expectsCSS && !userWantsControl) {\n      cb();\n    }\n  }\n}\n\n// only used in dev mode\nfunction checkDuration (val, name, vnode) {\n  if (typeof val !== 'number') {\n    warn(\n      \"<transition> explicit \" + name + \" duration is not a valid number - \" +\n      \"got \" + (JSON.stringify(val)) + \".\",\n      vnode.context\n    );\n  } else if (isNaN(val)) {\n    warn(\n      \"<transition> explicit \" + name + \" duration is NaN - \" +\n      'the duration expression might be incorrect.',\n      vnode.context\n    );\n  }\n}\n\nfunction isValidDuration (val) {\n  return typeof val === 'number' && !isNaN(val)\n}\n\n/**\n * Normalize a transition hook's argument length. The hook may be:\n * - a merged hook (invoker) with the original in .fns\n * - a wrapped component method (check ._length)\n * - a plain function (.length)\n */\nfunction getHookArgumentsLength (fn) {\n  if (isUndef(fn)) {\n    return false\n  }\n  var invokerFns = fn.fns;\n  if (isDef(invokerFns)) {\n    // invoker\n    return getHookArgumentsLength(\n      Array.isArray(invokerFns)\n        ? invokerFns[0]\n        : invokerFns\n    )\n  } else {\n    return (fn._length || fn.length) > 1\n  }\n}\n\nfunction _enter (_, vnode) {\n  if (vnode.data.show !== true) {\n    enter(vnode);\n  }\n}\n\nvar transition = inBrowser ? {\n  create: _enter,\n  activate: _enter,\n  remove: function remove$$1 (vnode, rm) {\n    /* istanbul ignore else */\n    if (vnode.data.show !== true) {\n      leave(vnode, rm);\n    } else {\n      rm();\n    }\n  }\n} : {};\n\nvar platformModules = [\n  attrs,\n  klass,\n  events,\n  domProps,\n  style,\n  transition\n];\n\n/*  */\n\n// the directive module should be applied last, after all\n// built-in modules have been applied.\nvar modules = platformModules.concat(baseModules);\n\nvar patch = createPatchFunction({ nodeOps: nodeOps, modules: modules });\n\n/**\n * Not type checking this file because flow doesn't like attaching\n * properties to Elements.\n */\n\n/* istanbul ignore if */\nif (isIE9) {\n  // http://www.matts411.com/post/internet-explorer-9-oninput/\n  document.addEventListener('selectionchange', function () {\n    var el = document.activeElement;\n    if (el && el.vmodel) {\n      trigger(el, 'input');\n    }\n  });\n}\n\nvar directive = {\n  inserted: function inserted (el, binding, vnode, oldVnode) {\n    if (vnode.tag === 'select') {\n      // #6903\n      if (oldVnode.elm && !oldVnode.elm._vOptions) {\n        mergeVNodeHook(vnode, 'postpatch', function () {\n          directive.componentUpdated(el, binding, vnode);\n        });\n      } else {\n        setSelected(el, binding, vnode.context);\n      }\n      el._vOptions = [].map.call(el.options, getValue);\n    } else if (vnode.tag === 'textarea' || isTextInputType(el.type)) {\n      el._vModifiers = binding.modifiers;\n      if (!binding.modifiers.lazy) {\n        el.addEventListener('compositionstart', onCompositionStart);\n        el.addEventListener('compositionend', onCompositionEnd);\n        // Safari < 10.2 & UIWebView doesn't fire compositionend when\n        // switching focus before confirming composition choice\n        // this also fixes the issue where some browsers e.g. iOS Chrome\n        // fires \"change\" instead of \"input\" on autocomplete.\n        el.addEventListener('change', onCompositionEnd);\n        /* istanbul ignore if */\n        if (isIE9) {\n          el.vmodel = true;\n        }\n      }\n    }\n  },\n\n  componentUpdated: function componentUpdated (el, binding, vnode) {\n    if (vnode.tag === 'select') {\n      setSelected(el, binding, vnode.context);\n      // in case the options rendered by v-for have changed,\n      // it's possible that the value is out-of-sync with the rendered options.\n      // detect such cases and filter out values that no longer has a matching\n      // option in the DOM.\n      var prevOptions = el._vOptions;\n      var curOptions = el._vOptions = [].map.call(el.options, getValue);\n      if (curOptions.some(function (o, i) { return !looseEqual(o, prevOptions[i]); })) {\n        // trigger change event if\n        // no matching option found for at least one value\n        var needReset = el.multiple\n          ? binding.value.some(function (v) { return hasNoMatchingOption(v, curOptions); })\n          : binding.value !== binding.oldValue && hasNoMatchingOption(binding.value, curOptions);\n        if (needReset) {\n          trigger(el, 'change');\n        }\n      }\n    }\n  }\n};\n\nfunction setSelected (el, binding, vm) {\n  actuallySetSelected(el, binding, vm);\n  /* istanbul ignore if */\n  if (isIE || isEdge) {\n    setTimeout(function () {\n      actuallySetSelected(el, binding, vm);\n    }, 0);\n  }\n}\n\nfunction actuallySetSelected (el, binding, vm) {\n  var value = binding.value;\n  var isMultiple = el.multiple;\n  if (isMultiple && !Array.isArray(value)) {\n    process.env.NODE_ENV !== 'production' && warn(\n      \"<select multiple v-model=\\\"\" + (binding.expression) + \"\\\"> \" +\n      \"expects an Array value for its binding, but got \" + (Object.prototype.toString.call(value).slice(8, -1)),\n      vm\n    );\n    return\n  }\n  var selected, option;\n  for (var i = 0, l = el.options.length; i < l; i++) {\n    option = el.options[i];\n    if (isMultiple) {\n      selected = looseIndexOf(value, getValue(option)) > -1;\n      if (option.selected !== selected) {\n        option.selected = selected;\n      }\n    } else {\n      if (looseEqual(getValue(option), value)) {\n        if (el.selectedIndex !== i) {\n          el.selectedIndex = i;\n        }\n        return\n      }\n    }\n  }\n  if (!isMultiple) {\n    el.selectedIndex = -1;\n  }\n}\n\nfunction hasNoMatchingOption (value, options) {\n  return options.every(function (o) { return !looseEqual(o, value); })\n}\n\nfunction getValue (option) {\n  return '_value' in option\n    ? option._value\n    : option.value\n}\n\nfunction onCompositionStart (e) {\n  e.target.composing = true;\n}\n\nfunction onCompositionEnd (e) {\n  // prevent triggering an input event for no reason\n  if (!e.target.composing) { return }\n  e.target.composing = false;\n  trigger(e.target, 'input');\n}\n\nfunction trigger (el, type) {\n  var e = document.createEvent('HTMLEvents');\n  e.initEvent(type, true, true);\n  el.dispatchEvent(e);\n}\n\n/*  */\n\n// recursively search for possible transition defined inside the component root\nfunction locateNode (vnode) {\n  return vnode.componentInstance && (!vnode.data || !vnode.data.transition)\n    ? locateNode(vnode.componentInstance._vnode)\n    : vnode\n}\n\nvar show = {\n  bind: function bind (el, ref, vnode) {\n    var value = ref.value;\n\n    vnode = locateNode(vnode);\n    var transition$$1 = vnode.data && vnode.data.transition;\n    var originalDisplay = el.__vOriginalDisplay =\n      el.style.display === 'none' ? '' : el.style.display;\n    if (value && transition$$1) {\n      vnode.data.show = true;\n      enter(vnode, function () {\n        el.style.display = originalDisplay;\n      });\n    } else {\n      el.style.display = value ? originalDisplay : 'none';\n    }\n  },\n\n  update: function update (el, ref, vnode) {\n    var value = ref.value;\n    var oldValue = ref.oldValue;\n\n    /* istanbul ignore if */\n    if (!value === !oldValue) { return }\n    vnode = locateNode(vnode);\n    var transition$$1 = vnode.data && vnode.data.transition;\n    if (transition$$1) {\n      vnode.data.show = true;\n      if (value) {\n        enter(vnode, function () {\n          el.style.display = el.__vOriginalDisplay;\n        });\n      } else {\n        leave(vnode, function () {\n          el.style.display = 'none';\n        });\n      }\n    } else {\n      el.style.display = value ? el.__vOriginalDisplay : 'none';\n    }\n  },\n\n  unbind: function unbind (\n    el,\n    binding,\n    vnode,\n    oldVnode,\n    isDestroy\n  ) {\n    if (!isDestroy) {\n      el.style.display = el.__vOriginalDisplay;\n    }\n  }\n};\n\nvar platformDirectives = {\n  model: directive,\n  show: show\n};\n\n/*  */\n\nvar transitionProps = {\n  name: String,\n  appear: Boolean,\n  css: Boolean,\n  mode: String,\n  type: String,\n  enterClass: String,\n  leaveClass: String,\n  enterToClass: String,\n  leaveToClass: String,\n  enterActiveClass: String,\n  leaveActiveClass: String,\n  appearClass: String,\n  appearActiveClass: String,\n  appearToClass: String,\n  duration: [Number, String, Object]\n};\n\n// in case the child is also an abstract component, e.g. <keep-alive>\n// we want to recursively retrieve the real component to be rendered\nfunction getRealChild (vnode) {\n  var compOptions = vnode && vnode.componentOptions;\n  if (compOptions && compOptions.Ctor.options.abstract) {\n    return getRealChild(getFirstComponentChild(compOptions.children))\n  } else {\n    return vnode\n  }\n}\n\nfunction extractTransitionData (comp) {\n  var data = {};\n  var options = comp.$options;\n  // props\n  for (var key in options.propsData) {\n    data[key] = comp[key];\n  }\n  // events.\n  // extract listeners and pass them directly to the transition methods\n  var listeners = options._parentListeners;\n  for (var key$1 in listeners) {\n    data[camelize(key$1)] = listeners[key$1];\n  }\n  return data\n}\n\nfunction placeholder (h, rawChild) {\n  if (/\\d-keep-alive$/.test(rawChild.tag)) {\n    return h('keep-alive', {\n      props: rawChild.componentOptions.propsData\n    })\n  }\n}\n\nfunction hasParentTransition (vnode) {\n  while ((vnode = vnode.parent)) {\n    if (vnode.data.transition) {\n      return true\n    }\n  }\n}\n\nfunction isSameChild (child, oldChild) {\n  return oldChild.key === child.key && oldChild.tag === child.tag\n}\n\nvar isNotTextNode = function (c) { return c.tag || isAsyncPlaceholder(c); };\n\nvar isVShowDirective = function (d) { return d.name === 'show'; };\n\nvar Transition = {\n  name: 'transition',\n  props: transitionProps,\n  abstract: true,\n\n  render: function render (h) {\n    var this$1 = this;\n\n    var children = this.$slots.default;\n    if (!children) {\n      return\n    }\n\n    // filter out text nodes (possible whitespaces)\n    children = children.filter(isNotTextNode);\n    /* istanbul ignore if */\n    if (!children.length) {\n      return\n    }\n\n    // warn multiple elements\n    if (process.env.NODE_ENV !== 'production' && children.length > 1) {\n      warn(\n        '<transition> can only be used on a single element. Use ' +\n        '<transition-group> for lists.',\n        this.$parent\n      );\n    }\n\n    var mode = this.mode;\n\n    // warn invalid mode\n    if (process.env.NODE_ENV !== 'production' &&\n      mode && mode !== 'in-out' && mode !== 'out-in'\n    ) {\n      warn(\n        'invalid <transition> mode: ' + mode,\n        this.$parent\n      );\n    }\n\n    var rawChild = children[0];\n\n    // if this is a component root node and the component's\n    // parent container node also has transition, skip.\n    if (hasParentTransition(this.$vnode)) {\n      return rawChild\n    }\n\n    // apply transition data to child\n    // use getRealChild() to ignore abstract components e.g. keep-alive\n    var child = getRealChild(rawChild);\n    /* istanbul ignore if */\n    if (!child) {\n      return rawChild\n    }\n\n    if (this._leaving) {\n      return placeholder(h, rawChild)\n    }\n\n    // ensure a key that is unique to the vnode type and to this transition\n    // component instance. This key will be used to remove pending leaving nodes\n    // during entering.\n    var id = \"__transition-\" + (this._uid) + \"-\";\n    child.key = child.key == null\n      ? child.isComment\n        ? id + 'comment'\n        : id + child.tag\n      : isPrimitive(child.key)\n        ? (String(child.key).indexOf(id) === 0 ? child.key : id + child.key)\n        : child.key;\n\n    var data = (child.data || (child.data = {})).transition = extractTransitionData(this);\n    var oldRawChild = this._vnode;\n    var oldChild = getRealChild(oldRawChild);\n\n    // mark v-show\n    // so that the transition module can hand over the control to the directive\n    if (child.data.directives && child.data.directives.some(isVShowDirective)) {\n      child.data.show = true;\n    }\n\n    if (\n      oldChild &&\n      oldChild.data &&\n      !isSameChild(child, oldChild) &&\n      !isAsyncPlaceholder(oldChild) &&\n      // #6687 component root is a comment node\n      !(oldChild.componentInstance && oldChild.componentInstance._vnode.isComment)\n    ) {\n      // replace old child transition data with fresh one\n      // important for dynamic transitions!\n      var oldData = oldChild.data.transition = extend({}, data);\n      // handle transition mode\n      if (mode === 'out-in') {\n        // return placeholder node and queue update when leave finishes\n        this._leaving = true;\n        mergeVNodeHook(oldData, 'afterLeave', function () {\n          this$1._leaving = false;\n          this$1.$forceUpdate();\n        });\n        return placeholder(h, rawChild)\n      } else if (mode === 'in-out') {\n        if (isAsyncPlaceholder(child)) {\n          return oldRawChild\n        }\n        var delayedLeave;\n        var performLeave = function () { delayedLeave(); };\n        mergeVNodeHook(data, 'afterEnter', performLeave);\n        mergeVNodeHook(data, 'enterCancelled', performLeave);\n        mergeVNodeHook(oldData, 'delayLeave', function (leave) { delayedLeave = leave; });\n      }\n    }\n\n    return rawChild\n  }\n};\n\n/*  */\n\nvar props = extend({\n  tag: String,\n  moveClass: String\n}, transitionProps);\n\ndelete props.mode;\n\nvar TransitionGroup = {\n  props: props,\n\n  beforeMount: function beforeMount () {\n    var this$1 = this;\n\n    var update = this._update;\n    this._update = function (vnode, hydrating) {\n      var restoreActiveInstance = setActiveInstance(this$1);\n      // force removing pass\n      this$1.__patch__(\n        this$1._vnode,\n        this$1.kept,\n        false, // hydrating\n        true // removeOnly (!important, avoids unnecessary moves)\n      );\n      this$1._vnode = this$1.kept;\n      restoreActiveInstance();\n      update.call(this$1, vnode, hydrating);\n    };\n  },\n\n  render: function render (h) {\n    var tag = this.tag || this.$vnode.data.tag || 'span';\n    var map = Object.create(null);\n    var prevChildren = this.prevChildren = this.children;\n    var rawChildren = this.$slots.default || [];\n    var children = this.children = [];\n    var transitionData = extractTransitionData(this);\n\n    for (var i = 0; i < rawChildren.length; i++) {\n      var c = rawChildren[i];\n      if (c.tag) {\n        if (c.key != null && String(c.key).indexOf('__vlist') !== 0) {\n          children.push(c);\n          map[c.key] = c\n          ;(c.data || (c.data = {})).transition = transitionData;\n        } else if (process.env.NODE_ENV !== 'production') {\n          var opts = c.componentOptions;\n          var name = opts ? (opts.Ctor.options.name || opts.tag || '') : c.tag;\n          warn((\"<transition-group> children must be keyed: <\" + name + \">\"));\n        }\n      }\n    }\n\n    if (prevChildren) {\n      var kept = [];\n      var removed = [];\n      for (var i$1 = 0; i$1 < prevChildren.length; i$1++) {\n        var c$1 = prevChildren[i$1];\n        c$1.data.transition = transitionData;\n        c$1.data.pos = c$1.elm.getBoundingClientRect();\n        if (map[c$1.key]) {\n          kept.push(c$1);\n        } else {\n          removed.push(c$1);\n        }\n      }\n      this.kept = h(tag, null, kept);\n      this.removed = removed;\n    }\n\n    return h(tag, null, children)\n  },\n\n  updated: function updated () {\n    var children = this.prevChildren;\n    var moveClass = this.moveClass || ((this.name || 'v') + '-move');\n    if (!children.length || !this.hasMove(children[0].elm, moveClass)) {\n      return\n    }\n\n    // we divide the work into three loops to avoid mixing DOM reads and writes\n    // in each iteration - which helps prevent layout thrashing.\n    children.forEach(callPendingCbs);\n    children.forEach(recordPosition);\n    children.forEach(applyTranslation);\n\n    // force reflow to put everything in position\n    // assign to this to avoid being removed in tree-shaking\n    // $flow-disable-line\n    this._reflow = document.body.offsetHeight;\n\n    children.forEach(function (c) {\n      if (c.data.moved) {\n        var el = c.elm;\n        var s = el.style;\n        addTransitionClass(el, moveClass);\n        s.transform = s.WebkitTransform = s.transitionDuration = '';\n        el.addEventListener(transitionEndEvent, el._moveCb = function cb (e) {\n          if (e && e.target !== el) {\n            return\n          }\n          if (!e || /transform$/.test(e.propertyName)) {\n            el.removeEventListener(transitionEndEvent, cb);\n            el._moveCb = null;\n            removeTransitionClass(el, moveClass);\n          }\n        });\n      }\n    });\n  },\n\n  methods: {\n    hasMove: function hasMove (el, moveClass) {\n      /* istanbul ignore if */\n      if (!hasTransition) {\n        return false\n      }\n      /* istanbul ignore if */\n      if (this._hasMove) {\n        return this._hasMove\n      }\n      // Detect whether an element with the move class applied has\n      // CSS transitions. Since the element may be inside an entering\n      // transition at this very moment, we make a clone of it and remove\n      // all other transition classes applied to ensure only the move class\n      // is applied.\n      var clone = el.cloneNode();\n      if (el._transitionClasses) {\n        el._transitionClasses.forEach(function (cls) { removeClass(clone, cls); });\n      }\n      addClass(clone, moveClass);\n      clone.style.display = 'none';\n      this.$el.appendChild(clone);\n      var info = getTransitionInfo(clone);\n      this.$el.removeChild(clone);\n      return (this._hasMove = info.hasTransform)\n    }\n  }\n};\n\nfunction callPendingCbs (c) {\n  /* istanbul ignore if */\n  if (c.elm._moveCb) {\n    c.elm._moveCb();\n  }\n  /* istanbul ignore if */\n  if (c.elm._enterCb) {\n    c.elm._enterCb();\n  }\n}\n\nfunction recordPosition (c) {\n  c.data.newPos = c.elm.getBoundingClientRect();\n}\n\nfunction applyTranslation (c) {\n  var oldPos = c.data.pos;\n  var newPos = c.data.newPos;\n  var dx = oldPos.left - newPos.left;\n  var dy = oldPos.top - newPos.top;\n  if (dx || dy) {\n    c.data.moved = true;\n    var s = c.elm.style;\n    s.transform = s.WebkitTransform = \"translate(\" + dx + \"px,\" + dy + \"px)\";\n    s.transitionDuration = '0s';\n  }\n}\n\nvar platformComponents = {\n  Transition: Transition,\n  TransitionGroup: TransitionGroup\n};\n\n/*  */\n\n// install platform specific utils\nVue.config.mustUseProp = mustUseProp;\nVue.config.isReservedTag = isReservedTag;\nVue.config.isReservedAttr = isReservedAttr;\nVue.config.getTagNamespace = getTagNamespace;\nVue.config.isUnknownElement = isUnknownElement;\n\n// install platform runtime directives & components\nextend(Vue.options.directives, platformDirectives);\nextend(Vue.options.components, platformComponents);\n\n// install platform patch function\nVue.prototype.__patch__ = inBrowser ? patch : noop;\n\n// public mount method\nVue.prototype.$mount = function (\n  el,\n  hydrating\n) {\n  el = el && inBrowser ? query(el) : undefined;\n  return mountComponent(this, el, hydrating)\n};\n\n// devtools global hook\n/* istanbul ignore next */\nif (inBrowser) {\n  setTimeout(function () {\n    if (config.devtools) {\n      if (devtools) {\n        devtools.emit('init', Vue);\n      } else if (\n        process.env.NODE_ENV !== 'production' &&\n        process.env.NODE_ENV !== 'test'\n      ) {\n        console[console.info ? 'info' : 'log'](\n          'Download the Vue Devtools extension for a better development experience:\\n' +\n          'https://github.com/vuejs/vue-devtools'\n        );\n      }\n    }\n    if (process.env.NODE_ENV !== 'production' &&\n      process.env.NODE_ENV !== 'test' &&\n      config.productionTip !== false &&\n      typeof console !== 'undefined'\n    ) {\n      console[console.info ? 'info' : 'log'](\n        \"You are running Vue in development mode.\\n\" +\n        \"Make sure to turn on production mode when deploying for production.\\n\" +\n        \"See more tips at https://vuejs.org/guide/deployment.html\"\n      );\n    }\n  }, 0);\n}\n\n/*  */\n\nexport default Vue;\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _Debug=require('../core/Debug');var _Debug2=_interopRequireDefault(_Debug);var _DashJSError=require('./vo/DashJSError');var _DashJSError2=_interopRequireDefault(_DashJSError);var _EventBus=require('../core/EventBus');var _EventBus2=_interopRequireDefault(_EventBus);var _Events=require('../core/events/Events');var _Events2=_interopRequireDefault(_Events);var _FactoryMaker=require('../core/FactoryMaker');var _FactoryMaker2=_interopRequireDefault(_FactoryMaker);var _TextController=require('./text/TextController');var _TextController2=_interopRequireDefault(_TextController);var _Errors=require('../core/errors/Errors');var _Errors2=_interopRequireDefault(_Errors);function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}var MAX_ALLOWED_DISCONTINUITY=0.1;// 100 milliseconds\n/**\n * @class SourceBufferSink\n * @ignore\n * @implements FragmentSink\n *//**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n */function SourceBufferSink(mediaSource,mediaInfo,onAppendedCallback,useAppendWindowEnd,oldBuffer){var context=this.context;var eventBus=(0,_EventBus2.default)(context).getInstance();var instance=void 0,logger=void 0,buffer=void 0,isAppendingInProgress=void 0,intervalId=void 0;var callbacks=[];var appendQueue=[];var onAppended=onAppendedCallback;var setAppendWindowEnd=useAppendWindowEnd===false?false:true;function setup(){logger=(0,_Debug2.default)(context).getInstance().getLogger(instance);isAppendingInProgress=false;var codec=mediaInfo.codec;try{// Safari claims to support anything starting 'application/mp4'.\n// it definitely doesn't understand 'application/mp4;codecs=\"stpp\"'\n// - currently no browser does, so check for it and use our own\n// implementation. The same is true for codecs=\"wvtt\".\nif(codec.match(/application\\/mp4;\\s*codecs=\"(stpp|wvtt).*\"/i)){throw new Error('not really supported');}buffer=oldBuffer?oldBuffer:mediaSource.addSourceBuffer(codec);if(buffer.changeType&&oldBuffer){logger.debug('Doing period transition with changeType');buffer.changeType(codec);}if(setAppendWindowEnd&&buffer){buffer.appendWindowEnd=mediaSource.duration;}var CHECK_INTERVAL=50;// use updateend event if possible\nif(typeof buffer.addEventListener==='function'){try{buffer.addEventListener('updateend',updateEndHandler,false);buffer.addEventListener('error',errHandler,false);buffer.addEventListener('abort',errHandler,false);}catch(err){// use setInterval to periodically check if updating has been completed\nintervalId=setInterval(checkIsUpdateEnded,CHECK_INTERVAL);}}else{// use setInterval to periodically check if updating has been completed\nintervalId=setInterval(checkIsUpdateEnded,CHECK_INTERVAL);}}catch(ex){// Note that in the following, the quotes are open to allow for extra text after stpp and wvtt\nif(mediaInfo.isText||codec.indexOf('codecs=\"stpp')!==-1||codec.indexOf('codecs=\"wvtt')!==-1){var textController=(0,_TextController2.default)(context).getInstance();buffer=textController.getTextSourceBuffer();}else{throw ex;}}}function reset(keepBuffer){if(buffer){if(typeof buffer.removeEventListener==='function'){buffer.removeEventListener('updateend',updateEndHandler,false);buffer.removeEventListener('error',errHandler,false);buffer.removeEventListener('abort',errHandler,false);}clearInterval(intervalId);buffer.appendWindowEnd=Infinity;if(!keepBuffer){try{if(!buffer.getClassName||buffer.getClassName()!=='TextSourceBuffer'){mediaSource.removeSourceBuffer(buffer);}}catch(e){logger.error('Failed to remove source buffer from media source.');}buffer=null;}isAppendingInProgress=false;}appendQueue=[];onAppended=null;}function getBuffer(){return buffer;}function getAllBufferRanges(){try{return buffer.buffered;}catch(e){logger.error('getAllBufferRanges exception: '+e.message);return null;}}function hasDiscontinuitiesAfter(time){try{var ranges=getAllBufferRanges();if(ranges&&ranges.length>1){for(var i=0,len=ranges.length;i<len;i++){if(i>0){if(time<ranges.start(i)&&ranges.start(i)>ranges.end(i-1)+MAX_ALLOWED_DISCONTINUITY){return true;}}}}}catch(e){logger.error('hasDiscontinuities exception: '+e.message);}return false;}function append(chunk){if(!chunk){onAppended({chunk:chunk,error:new _DashJSError2.default(_Errors2.default.APPEND_ERROR_CODE,_Errors2.default.APPEND_ERROR_MESSAGE)});return;}appendQueue.push(chunk);if(!isAppendingInProgress){waitForUpdateEnd(appendNextInQueue.bind(this));}}function updateTimestampOffset(MSETimeOffset){if(buffer.timestampOffset!==MSETimeOffset&&!isNaN(MSETimeOffset)){waitForUpdateEnd(function(){buffer.timestampOffset=MSETimeOffset;});}}function remove(start,end,forceRemoval){var sourceBufferSink=this;// make sure that the given time range is correct. Otherwise we will get InvalidAccessError\nwaitForUpdateEnd(function(){try{if(start>=0&&end>start&&(forceRemoval||mediaSource.readyState!=='ended')){buffer.remove(start,end);}// updating is in progress, we should wait for it to complete before signaling that this operation is done\nwaitForUpdateEnd(function(){eventBus.trigger(_Events2.default.SOURCEBUFFER_REMOVE_COMPLETED,{buffer:sourceBufferSink,from:start,to:end,unintended:false});});}catch(err){eventBus.trigger(_Events2.default.SOURCEBUFFER_REMOVE_COMPLETED,{buffer:sourceBufferSink,from:start,to:end,unintended:false,error:new _DashJSError2.default(err.code,err.message)});}});}function appendNextInQueue(){var sourceBufferSink=this;if(appendQueue.length>0){isAppendingInProgress=true;var nextChunk=appendQueue[0];appendQueue.splice(0,1);var oldRanges=[];var afterSuccess=function afterSuccess(){// Safari sometimes drops a portion of a buffer after appending. Handle these situations here\nvar newRanges=getAllBufferRanges();checkBufferGapsAfterAppend(sourceBufferSink,oldRanges,newRanges,nextChunk);if(appendQueue.length>0){appendNextInQueue.call(this);}else{isAppendingInProgress=false;if(onAppended){onAppended({chunk:nextChunk});}}};try{if(nextChunk.bytes.length===0){afterSuccess.call(this);}else{oldRanges=getAllBufferRanges();if(buffer.appendBuffer){buffer.appendBuffer(nextChunk.bytes);}else{buffer.append(nextChunk.bytes,nextChunk);}// updating is in progress, we should wait for it to complete before signaling that this operation is done\nwaitForUpdateEnd(afterSuccess.bind(this));}}catch(err){logger.fatal('SourceBuffer append failed \"'+err+'\"');if(appendQueue.length>0){appendNextInQueue();}else{isAppendingInProgress=false;}if(onAppended){onAppended({chunk:nextChunk,error:new _DashJSError2.default(err.code,err.message)});}}}}function checkBufferGapsAfterAppend(buffer,oldRanges,newRanges,chunk){if(oldRanges&&oldRanges.length>0&&oldRanges.length<newRanges.length&&isChunkAlignedWithRange(oldRanges,chunk)){// A split in the range was created while appending\neventBus.trigger(_Events2.default.SOURCEBUFFER_REMOVE_COMPLETED,{buffer:buffer,from:newRanges.end(newRanges.length-2),to:newRanges.start(newRanges.length-1),unintended:true});}}function isChunkAlignedWithRange(oldRanges,chunk){for(var i=0;i<oldRanges.length;i++){var start=Math.round(oldRanges.start(i));var end=Math.round(oldRanges.end(i));if(end===chunk.start||start===chunk.end||chunk.start>=start&&chunk.end<=end){return true;}}return false;}function abort(){try{if(mediaSource.readyState==='open'){buffer.abort();}else if(buffer.setTextTrack&&mediaSource.readyState==='ended'){buffer.abort();//The cues need to be removed from the TextSourceBuffer via a call to abort()\n}}catch(ex){logger.error('SourceBuffer append abort failed: \"'+ex+'\"');}appendQueue=[];}function executeCallback(){if(callbacks.length>0){var cb=callbacks.shift();if(buffer.updating){waitForUpdateEnd(cb);}else{cb();// Try to execute next callback if still not updating\nexecuteCallback();}}}function checkIsUpdateEnded(){// if updating is still in progress do nothing and wait for the next check again.\nif(buffer.updating)return;// updating is completed, now we can stop checking and resolve the promise\nexecuteCallback();}function updateEndHandler(){if(buffer.updating)return;executeCallback();}function errHandler(){logger.error('SourceBufferSink error',mediaInfo.type);}function waitForUpdateEnd(callback){callbacks.push(callback);if(!buffer.updating){executeCallback();}}instance={getAllBufferRanges:getAllBufferRanges,getBuffer:getBuffer,append:append,remove:remove,abort:abort,reset:reset,updateTimestampOffset:updateTimestampOffset,hasDiscontinuitiesAfter:hasDiscontinuitiesAfter,waitForUpdateEnd:waitForUpdateEnd};setup();return instance;}SourceBufferSink.__dashjs_factory_name='SourceBufferSink';var factory=_FactoryMaker2.default.getClassFactory(SourceBufferSink);exports.default=factory;\n//# sourceMappingURL=SourceBufferSink.js.map\n","/**\n * Copyright 2013 vtt.js Contributors\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\n// Default exports for Node. Export the extended versions of VTTCue and\n// VTTRegion in Node since we likely want the capability to convert back and\n// forth between JSON. If we don't then it's not that big of a deal since we're\n// off browser.\n\nvar window = require('global/window');\n\nvar vttjs = module.exports = {\n  WebVTT: require(\"./vtt.js\"),\n  VTTCue: require(\"./vttcue.js\"),\n  VTTRegion: require(\"./vttregion.js\")\n};\n\nwindow.vttjs = vttjs;\nwindow.WebVTT = vttjs.WebVTT;\n\nvar cueShim = vttjs.VTTCue;\nvar regionShim = vttjs.VTTRegion;\nvar nativeVTTCue = window.VTTCue;\nvar nativeVTTRegion = window.VTTRegion;\n\nvttjs.shim = function() {\n  window.VTTCue = cueShim;\n  window.VTTRegion = regionShim;\n};\n\nvttjs.restore = function() {\n  window.VTTCue = nativeVTTCue;\n  window.VTTRegion = nativeVTTRegion;\n};\n\nif (!window.VTTCue) {\n  vttjs.shim();\n}\n","module.exports = require('./lib/_stream_writable.js');\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});exports.THUMBNAILS_SCHEME_ID_URIS=undefined;var _Constants=require('../constants/Constants');var _Constants2=_interopRequireDefault(_Constants);var _DashConstants=require('../../dash/constants/DashConstants');var _DashConstants2=_interopRequireDefault(_DashConstants);var _FactoryMaker=require('../../core/FactoryMaker');var _FactoryMaker2=_interopRequireDefault(_FactoryMaker);var _ThumbnailTrackInfo=require('../vo/ThumbnailTrackInfo');var _ThumbnailTrackInfo2=_interopRequireDefault(_ThumbnailTrackInfo);var _URLUtils=require('../../streaming/utils/URLUtils');var _URLUtils2=_interopRequireDefault(_URLUtils);var _SegmentsUtils=require('../../dash/utils/SegmentsUtils');var _Events=require('../../core/events/Events');var _Events2=_interopRequireDefault(_Events);var _BoxParser=require('../../streaming/utils/BoxParser');var _BoxParser2=_interopRequireDefault(_BoxParser);var _XHRLoader=require('../../streaming/net/XHRLoader');var _XHRLoader2=_interopRequireDefault(_XHRLoader);var _DashHandler=require('../../dash/DashHandler');var _DashHandler2=_interopRequireDefault(_DashHandler);function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n */var THUMBNAILS_SCHEME_ID_URIS=exports.THUMBNAILS_SCHEME_ID_URIS=['http://dashif.org/thumbnail_tile','http://dashif.org/guidelines/thumbnail_tile'];function ThumbnailTracks(config){var context=this.context;var adapter=config.adapter;var baseURLController=config.baseURLController;var stream=config.stream;var timelineConverter=config.timelineConverter;var debug=config.debug;var eventBus=config.eventBus;var events=config.events;var dashConstants=config.dashConstants;var urlUtils=(0,_URLUtils2.default)(context).getInstance();var instance=void 0,tracks=void 0,indexHandler=void 0,currentTrackIndex=void 0,mediaInfo=void 0,loader=void 0,boxParser=void 0;function initialize(){reset();loader=(0,_XHRLoader2.default)(context).create({});boxParser=(0,_BoxParser2.default)(context).getInstance();indexHandler=(0,_DashHandler2.default)(context).create({timelineConverter:timelineConverter,baseURLController:baseURLController,debug:debug,eventBus:eventBus,events:events,dashConstants:dashConstants});// initialize controllers\nindexHandler.initialize(adapter?adapter.getIsDynamic():false);// parse representation and create tracks\naddTracks();}function normalizeSegments(fragments,representation){var segments=[];var count=0;var i=void 0,len=void 0,s=void 0,seg=void 0;for(i=0,len=fragments.length;i<len;i++){s=fragments[i];seg=(0,_SegmentsUtils.getTimeBasedSegment)(timelineConverter,adapter.getIsDynamic(),representation,s.startTime,s.duration,s.timescale,s.media,s.mediaRange,count);if(seg){segments.push(seg);seg=null;count++;}}return segments;}function addTracks(){if(!stream||!adapter){return;}var streamInfo=stream.getStreamInfo();if(!streamInfo){return;}// Extract thumbnail tracks\nmediaInfo=adapter.getMediaInfoForType(streamInfo,_Constants2.default.IMAGE);if(!mediaInfo){return;}var voReps=adapter.getVoRepresentations(mediaInfo);if(voReps&&voReps.length>0){voReps.forEach(function(rep){if(rep.segmentInfoType===_DashConstants2.default.SEGMENT_TEMPLATE&&rep.segmentDuration>0&&rep.media||rep.segmentInfoType===_DashConstants2.default.SEGMENT_TIMELINE){createTrack(rep);}if(rep.segmentInfoType===_DashConstants2.default.SEGMENT_BASE){createTrack(rep,true);}});}if(tracks.length>0){// Sort bitrates and select the lowest bitrate rendition\ntracks.sort(function(a,b){return a.bitrate-b.bitrate;});currentTrackIndex=tracks.length-1;}}function createTrack(representation,useSegmentBase){var track=new _ThumbnailTrackInfo2.default();track.id=representation.id;track.bitrate=representation.bandwidth;track.width=representation.width;track.height=representation.height;track.tilesHor=1;track.tilesVert=1;if(representation.essentialProperties){representation.essentialProperties.forEach(function(p){if(THUMBNAILS_SCHEME_ID_URIS.indexOf(p.schemeIdUri)>=0&&p.value){var vars=p.value.split('x');if(vars.length===2&&!isNaN(vars[0])&&!isNaN(vars[1])){track.tilesHor=parseInt(vars[0],10);track.tilesVert=parseInt(vars[1],10);}}});}if(useSegmentBase){eventBus.trigger(_Events2.default.SEGMENTBASE_SEGMENTSLIST_REQUEST_NEEDED,{mimeType:mediaInfo.mimeType,mediaType:_Constants2.default.IMAGE,representation:representation,function:function _function(segments,representation){var cache=[];segments=normalizeSegments(segments,representation);track.segmentDuration=segments[0].duration;//assume all segments have the same duration\ntrack.readThumbnail=function(time,callback){var cached=null;cache.some(function(el){if(el.start<=time&&el.end>time){cached=el.url;return true;}});if(cached){callback(cached);}else{segments.some(function(ss){if(ss.mediaStartTime<=time&&ss.mediaStartTime+ss.duration>time){var baseURL=baseURLController.resolve(representation.path);loader.load({method:'get',url:baseURL.url,request:{range:ss.mediaRange,responseType:'arraybuffer'},onload:function onload(e){var info=boxParser.getSamplesInfo(e.target.response);var blob=new Blob([e.target.response.slice(info.sampleList[0].offset,info.sampleList[0].offset+info.sampleList[0].size)],{type:'image/jpeg'});var imageUrl=window.URL.createObjectURL(blob);cache.push({start:ss.mediaStartTime,end:ss.mediaStartTime+ss.duration,url:imageUrl});if(callback)callback(imageUrl);}});return true;}});}};}});}else{track.startNumber=representation.startNumber;track.segmentDuration=representation.segmentDuration;track.timescale=representation.timescale;track.templateUrl=buildTemplateUrl(representation);}if(track.tilesHor>0&&track.tilesVert>0){// Precalculate width and heigth per tile for perf reasons\ntrack.widthPerTile=track.width/track.tilesHor;track.heightPerTile=track.height/track.tilesVert;tracks.push(track);}}function buildTemplateUrl(representation){var templateUrl=urlUtils.isRelative(representation.media)?urlUtils.resolve(representation.media,baseURLController.resolve(representation.path).url):representation.media;if(!templateUrl){return'';}return(0,_SegmentsUtils.replaceIDForTemplate)(templateUrl,representation.id);}function getTracks(){return tracks;}function getCurrentTrackIndex(){return currentTrackIndex;}function getCurrentTrack(){if(currentTrackIndex<0){return null;}return tracks[currentTrackIndex];}function setTrackByIndex(index){if(!tracks||tracks.length===0){return;}// select highest bitrate in case selected index is higher than bitrate list length\nif(index>=tracks.length){index=tracks.length-1;}currentTrackIndex=index;}function getThumbnailRequestForTime(time){var currentVoRep=void 0;var voReps=adapter.getVoRepresentations(mediaInfo);for(var i=0;i<voReps.length;i++){if(tracks[currentTrackIndex].id===voReps[i].id){currentVoRep=voReps[i];break;}}return indexHandler.getSegmentRequestForTime(mediaInfo,currentVoRep,time);}function reset(){tracks=[];currentTrackIndex=-1;mediaInfo=null;}instance={initialize:initialize,getTracks:getTracks,reset:reset,setTrackByIndex:setTrackByIndex,getCurrentTrack:getCurrentTrack,getCurrentTrackIndex:getCurrentTrackIndex,getThumbnailRequestForTime:getThumbnailRequestForTime};initialize();return instance;}ThumbnailTracks.__dashjs_factory_name='ThumbnailTracks';exports.default=_FactoryMaker2.default.getClassFactory(ThumbnailTracks);\n//# sourceMappingURL=ThumbnailTracks.js.map\n","var global = require('../internals/global');\nvar fails = require('../internals/fails');\nvar classof = require('../internals/classof-raw');\nvar bind = require('../internals/function-bind-context');\nvar html = require('../internals/html');\nvar createElement = require('../internals/document-create-element');\nvar IS_IOS = require('../internals/engine-is-ios');\n\nvar location = global.location;\nvar set = global.setImmediate;\nvar clear = global.clearImmediate;\nvar process = global.process;\nvar MessageChannel = global.MessageChannel;\nvar Dispatch = global.Dispatch;\nvar counter = 0;\nvar queue = {};\nvar ONREADYSTATECHANGE = 'onreadystatechange';\nvar defer, channel, port;\n\nvar run = function (id) {\n  // eslint-disable-next-line no-prototype-builtins\n  if (queue.hasOwnProperty(id)) {\n    var fn = queue[id];\n    delete queue[id];\n    fn();\n  }\n};\n\nvar runner = function (id) {\n  return function () {\n    run(id);\n  };\n};\n\nvar listener = function (event) {\n  run(event.data);\n};\n\nvar post = function (id) {\n  // old engines have not location.origin\n  global.postMessage(id + '', location.protocol + '//' + location.host);\n};\n\n// Node.js 0.9+ & IE10+ has setImmediate, otherwise:\nif (!set || !clear) {\n  set = function setImmediate(fn) {\n    var args = [];\n    var i = 1;\n    while (arguments.length > i) args.push(arguments[i++]);\n    queue[++counter] = function () {\n      // eslint-disable-next-line no-new-func\n      (typeof fn == 'function' ? fn : Function(fn)).apply(undefined, args);\n    };\n    defer(counter);\n    return counter;\n  };\n  clear = function clearImmediate(id) {\n    delete queue[id];\n  };\n  // Node.js 0.8-\n  if (classof(process) == 'process') {\n    defer = function (id) {\n      process.nextTick(runner(id));\n    };\n  // Sphere (JS game engine) Dispatch API\n  } else if (Dispatch && Dispatch.now) {\n    defer = function (id) {\n      Dispatch.now(runner(id));\n    };\n  // Browsers with MessageChannel, includes WebWorkers\n  // except iOS - https://github.com/zloirock/core-js/issues/624\n  } else if (MessageChannel && !IS_IOS) {\n    channel = new MessageChannel();\n    port = channel.port2;\n    channel.port1.onmessage = listener;\n    defer = bind(port.postMessage, port, 1);\n  // Browsers with postMessage, skip WebWorkers\n  // IE8 has postMessage, but it's sync & typeof its postMessage is 'object'\n  } else if (\n    global.addEventListener &&\n    typeof postMessage == 'function' &&\n    !global.importScripts &&\n    !fails(post) &&\n    location.protocol !== 'file:'\n  ) {\n    defer = post;\n    global.addEventListener('message', listener, false);\n  // IE8-\n  } else if (ONREADYSTATECHANGE in createElement('script')) {\n    defer = function (id) {\n      html.appendChild(createElement('script'))[ONREADYSTATECHANGE] = function () {\n        html.removeChild(this);\n        run(id);\n      };\n    };\n  // Rest old browsers\n  } else {\n    defer = function (id) {\n      setTimeout(runner(id), 0);\n    };\n  }\n}\n\nmodule.exports = {\n  set: set,\n  clear: clear\n};\n","var global = require('../internals/global');\nvar userAgent = require('../internals/engine-user-agent');\n\nvar process = global.process;\nvar versions = process && process.versions;\nvar v8 = versions && versions.v8;\nvar match, version;\n\nif (v8) {\n  match = v8.split('.');\n  version = match[0] + match[1];\n} else if (userAgent) {\n  match = userAgent.match(/Edge\\/(\\d+)/);\n  if (!match || match[1] >= 74) {\n    match = userAgent.match(/Chrome\\/(\\d+)/);\n    if (match) version = match[1];\n  }\n}\n\nmodule.exports = version && +version;\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _FactoryMaker=require('../../core/FactoryMaker');var _FactoryMaker2=_interopRequireDefault(_FactoryMaker);var _SupervisorTools=require('../utils/SupervisorTools');function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}/**\n* The copyright in this software is being made available under the BSD License,\n* included below. This software may be subject to other third party and contributor\n* rights, including patent rights, and no such rights are granted under this license.\n*\n* Copyright (c) 2013, Dash Industry Forum.\n* All rights reserved.\n*\n* Redistribution and use in source and binary forms, with or without modification,\n* are permitted provided that the following conditions are met:\n*  * Redistributions of source code must retain the above copyright notice, this\n*  list of conditions and the following disclaimer.\n*  * Redistributions in binary form must reproduce the above copyright notice,\n*  this list of conditions and the following disclaimer in the documentation and/or\n*  other materials provided with the distribution.\n*  * Neither the name of Dash Industry Forum nor the names of its\n*  contributors may be used to endorse or promote products derived from this software\n*  without specific prior written permission.\n*\n*  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n*  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n*  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n*  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n*  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n*  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n*  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n*  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n*  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n*  POSSIBILITY OF SUCH DAMAGE.\n*/function CustomTimeRanges()/*config*/{var customTimeRangeArray=[];var length=0;function add(start,end){var i=0;for(i=0;i<this.customTimeRangeArray.length&&start>this.customTimeRangeArray[i].start;i++){}this.customTimeRangeArray.splice(i,0,{start:start,end:end});for(i=0;i<this.customTimeRangeArray.length-1;i++){if(this.mergeRanges(i,i+1)){i--;}}this.length=this.customTimeRangeArray.length;}function clear(){this.customTimeRangeArray=[];this.length=0;}function remove(start,end){for(var i=0;i<this.customTimeRangeArray.length;i++){if(start<=this.customTimeRangeArray[i].start&&end>=this.customTimeRangeArray[i].end){//      |--------------Range i-------|\n//|---------------Range to remove ---------------|\n//    or\n//|--------------Range i-------|\n//|--------------Range to remove ---------------|\n//    or\n//                 |--------------Range i-------|\n//|--------------Range to remove ---------------|\nthis.customTimeRangeArray.splice(i,1);i--;}else if(start>this.customTimeRangeArray[i].start&&end<this.customTimeRangeArray[i].end){//|-----------------Range i----------------|\n//        |-------Range to remove -----|\nthis.customTimeRangeArray.splice(i+1,0,{start:end,end:this.customTimeRangeArray[i].end});this.customTimeRangeArray[i].end=start;break;}else if(start>this.customTimeRangeArray[i].start&&start<this.customTimeRangeArray[i].end){//|-----------Range i----------|\n//                    |---------Range to remove --------|\n//    or\n//|-----------------Range i----------------|\n//            |-------Range to remove -----|\nthis.customTimeRangeArray[i].end=start;}else if(end>this.customTimeRangeArray[i].start&&end<this.customTimeRangeArray[i].end){//                     |-----------Range i----------|\n//|---------Range to remove --------|\n//            or\n//|-----------------Range i----------------|\n//|-------Range to remove -----|\nthis.customTimeRangeArray[i].start=end;}}this.length=this.customTimeRangeArray.length;}function mergeRanges(rangeIndex1,rangeIndex2){var range1=this.customTimeRangeArray[rangeIndex1];var range2=this.customTimeRangeArray[rangeIndex2];if(range1.start<=range2.start&&range2.start<=range1.end&&range1.end<=range2.end){//|-----------Range1----------|\n//                    |-----------Range2----------|\nrange1.end=range2.end;this.customTimeRangeArray.splice(rangeIndex2,1);return true;}else if(range2.start<=range1.start&&range1.start<=range2.end&&range2.end<=range1.end){//                |-----------Range1----------|\n//|-----------Range2----------|\nrange1.start=range2.start;this.customTimeRangeArray.splice(rangeIndex2,1);return true;}else if(range2.start<=range1.start&&range1.start<=range2.end&&range1.end<=range2.end){//      |--------Range1-------|\n//|---------------Range2--------------|\nthis.customTimeRangeArray.splice(rangeIndex1,1);return true;}else if(range1.start<=range2.start&&range2.start<=range1.end&&range2.end<=range1.end){//|-----------------Range1--------------|\n//        |-----------Range2----------|\nthis.customTimeRangeArray.splice(rangeIndex2,1);return true;}return false;}function start(index){(0,_SupervisorTools.checkInteger)(index);if(index>=this.customTimeRangeArray.length||index<0){return NaN;}return this.customTimeRangeArray[index].start;}function end(index){(0,_SupervisorTools.checkInteger)(index);if(index>=this.customTimeRangeArray.length||index<0){return NaN;}return this.customTimeRangeArray[index].end;}return{customTimeRangeArray:customTimeRangeArray,length:length,add:add,clear:clear,remove:remove,mergeRanges:mergeRanges,start:start,end:end};}CustomTimeRanges.__dashjs_factory_name='CustomTimeRanges';exports.default=_FactoryMaker2.default.getClassFactory(CustomTimeRanges);\n//# sourceMappingURL=CustomTimeRanges.js.map\n","'use strict';\n\nvar enhanceError = require('./enhanceError');\n\n/**\n * Create an Error with the specified message, config, error code, request and response.\n *\n * @param {string} message The error message.\n * @param {Object} config The config.\n * @param {string} [code] The error code (for example, 'ECONNABORTED').\n * @param {Object} [request] The request.\n * @param {Object} [response] The response.\n * @returns {Error} The created error.\n */\nmodule.exports = function createError(message, config, code, request, response) {\n  var error = new Error(message);\n  return enhanceError(error, config, code, request, response);\n};\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _FactoryMaker=require('../../core/FactoryMaker');var _FactoryMaker2=_interopRequireDefault(_FactoryMaker);var _SchemeLoaderFactory=require('../../streaming/net/SchemeLoaderFactory');var _SchemeLoaderFactory2=_interopRequireDefault(_SchemeLoaderFactory);function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}/**\n * @module URLLoader\n * @description  Call Offline Loader or Online Loader dependaing on URL\n * @param {Object} cfg - dependances\n*//**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n */function URLLoader(cfg){cfg=cfg||{};var context=this.context;var instance=void 0,schemeLoaderFactory=void 0,loader=void 0;schemeLoaderFactory=(0,_SchemeLoaderFactory2.default)(context).getInstance();function load(config){var loaderFactory=schemeLoaderFactory.getLoader(config&&config.request?config.request.url:null);loader=loaderFactory(context).create({errHandler:cfg.errHandler,mediaPlayerModel:cfg.mediaPlayerModel,requestModifier:cfg.requestModifier,useFetch:cfg.useFetch||null,dashMetrics:cfg.dashMetrics,boxParser:cfg.boxParser?cfg.boxParser:null,constants:cfg.constants?cfg.constants:null,dashConstants:cfg.dashConstants?cfg.dashConstants:null,urlUtils:cfg.urlUtils?cfg.urlUtils:null,errors:cfg.errors});loader.load(config);}function abort(){if(loader){loader.abort();}}instance={load:load,abort:abort};return instance;}URLLoader.__dashjs_factory_name='URLLoader';var factory=_FactoryMaker2.default.getClassFactory(URLLoader);exports.default=factory;\n//# sourceMappingURL=URLLoader.js.map\n","'use strict';\n\nmodule.exports = function isCancel(value) {\n  return !!(value && value.__CANCEL__);\n};\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _FactoryMaker=require('../../core/FactoryMaker');var _FactoryMaker2=_interopRequireDefault(_FactoryMaker);var _Debug=require('../../core/Debug');var _Debug2=_interopRequireDefault(_Debug);var _Constants=require('../constants/Constants');var _Constants2=_interopRequireDefault(_Constants);function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}var legacyKeysAndReplacements=[{oldKey:'dashjs_vbitrate',newKey:'dashjs_video_bitrate'},{oldKey:'dashjs_abitrate',newKey:'dashjs_audio_bitrate'},{oldKey:'dashjs_vsettings',newKey:'dashjs_video_settings'},{oldKey:'dashjs_asettings',newKey:'dashjs_audio_settings'}];/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n */var LOCAL_STORAGE_BITRATE_KEY_TEMPLATE='dashjs_?_bitrate';var LOCAL_STORAGE_SETTINGS_KEY_TEMPLATE='dashjs_?_settings';var STORAGE_TYPE_LOCAL='localStorage';var STORAGE_TYPE_SESSION='sessionStorage';var LAST_BITRATE='lastBitrate';var LAST_MEDIA_SETTINGS='lastMediaSettings';function DOMStorage(config){config=config||{};var context=this.context;var settings=config.settings;var instance=void 0,logger=void 0,supported=void 0;function setup(){logger=(0,_Debug2.default)(context).getInstance().getLogger(instance);translateLegacyKeys();}//type can be local, session\nfunction isSupported(type){if(supported!==undefined)return supported;supported=false;var testKey='1';var testValue='1';var storage=void 0;try{if(typeof window!=='undefined'){storage=window[type];}}catch(error){logger.warn('DOMStorage access denied: '+error.message);return supported;}if(!storage||type!==STORAGE_TYPE_LOCAL&&type!==STORAGE_TYPE_SESSION){return supported;}/* When Safari (OS X or iOS) is in private browsing mode, it appears as though localStorage is available, but trying to call setItem throws an exception.\n         http://stackoverflow.com/questions/14555347/html5-localstorage-error-with-safari-quota-exceeded-err-dom-exception-22-an\n\n         Check if the storage can be used\n         */try{storage.setItem(testKey,testValue);storage.removeItem(testKey);supported=true;}catch(error){logger.warn('DOMStorage is supported, but cannot be used: '+error.message);}return supported;}function translateLegacyKeys(){if(isSupported(STORAGE_TYPE_LOCAL)){legacyKeysAndReplacements.forEach(function(entry){var value=localStorage.getItem(entry.oldKey);if(value){localStorage.removeItem(entry.oldKey);try{localStorage.setItem(entry.newKey,value);}catch(e){logger.error(e.message);}}});}}// Return current epoch time, ms, rounded to the nearest 10m to avoid fingerprinting user\nfunction getTimestamp(){var ten_minutes_ms=60*1000*10;return Math.round(new Date().getTime()/ten_minutes_ms)*ten_minutes_ms;}function canStore(storageType,key){return isSupported(storageType)&&settings.get().streaming[key+'CachingInfo'].enabled;}function checkConfig(){if(!settings){throw new Error(_Constants2.default.MISSING_CONFIG_ERROR);}}function getSavedMediaSettings(type){var mediaSettings=null;checkConfig();//Checks local storage to see if there is valid, non-expired media settings\nif(canStore(STORAGE_TYPE_LOCAL,LAST_MEDIA_SETTINGS)){var key=LOCAL_STORAGE_SETTINGS_KEY_TEMPLATE.replace(/\\?/,type);try{var obj=JSON.parse(localStorage.getItem(key))||{};var isExpired=new Date().getTime()-parseInt(obj.timestamp,10)>=settings.get().streaming.lastMediaSettingsCachingInfo.ttl||false;mediaSettings=obj.settings;if(isExpired){localStorage.removeItem(key);mediaSettings=null;}}catch(e){return null;}}return mediaSettings;}function getSavedBitrateSettings(type){var savedBitrate=NaN;checkConfig();//Checks local storage to see if there is valid, non-expired bit rate\n//hinting from the last play session to use as a starting bit rate.\nif(canStore(STORAGE_TYPE_LOCAL,LAST_BITRATE)){var key=LOCAL_STORAGE_BITRATE_KEY_TEMPLATE.replace(/\\?/,type);try{var obj=JSON.parse(localStorage.getItem(key))||{};var isExpired=new Date().getTime()-parseInt(obj.timestamp,10)>=settings.get().streaming.lastBitrateCachingInfo.ttl||false;var bitrate=parseFloat(obj.bitrate);if(!isNaN(bitrate)&&!isExpired){savedBitrate=bitrate;logger.debug('Last saved bitrate for '+type+' was '+bitrate);}else if(isExpired){localStorage.removeItem(key);}}catch(e){return null;}}return savedBitrate;}function setSavedMediaSettings(type,value){if(canStore(STORAGE_TYPE_LOCAL,LAST_MEDIA_SETTINGS)){var key=LOCAL_STORAGE_SETTINGS_KEY_TEMPLATE.replace(/\\?/,type);try{localStorage.setItem(key,JSON.stringify({settings:value,timestamp:getTimestamp()}));}catch(e){logger.error(e.message);}}}function setSavedBitrateSettings(type,bitrate){if(canStore(STORAGE_TYPE_LOCAL,LAST_BITRATE)&&bitrate){var key=LOCAL_STORAGE_BITRATE_KEY_TEMPLATE.replace(/\\?/,type);try{localStorage.setItem(key,JSON.stringify({bitrate:bitrate.toFixed(3),timestamp:getTimestamp()}));}catch(e){logger.error(e.message);}}}instance={getSavedBitrateSettings:getSavedBitrateSettings,setSavedBitrateSettings:setSavedBitrateSettings,getSavedMediaSettings:getSavedMediaSettings,setSavedMediaSettings:setSavedMediaSettings};setup();return instance;}DOMStorage.__dashjs_factory_name='DOMStorage';var factory=_FactoryMaker2.default.getSingletonFactory(DOMStorage);exports.default=factory;\n//# sourceMappingURL=DOMStorage.js.map\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _createClass=function(){function defineProperties(target,props){for(var i=0;i<props.length;i++){var descriptor=props[i];descriptor.enumerable=descriptor.enumerable||false;descriptor.configurable=true;if(\"value\"in descriptor)descriptor.writable=true;Object.defineProperty(target,descriptor.key,descriptor);}}return function(Constructor,protoProps,staticProps){if(protoProps)defineProperties(Constructor.prototype,protoProps);if(staticProps)defineProperties(Constructor,staticProps);return Constructor;};}();function _classCallCheck(instance,Constructor){if(!(instance instanceof Constructor)){throw new TypeError(\"Cannot call a class as a function\");}}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n *//**\n * Constants declaration\n * @class\n * @ignore\n * @hideconstructor\n */var Constants=function(){_createClass(Constants,[{key:'init',value:function init(){/**\n         *  @constant {string} STREAM Stream media type. Mainly used to report metrics relative to the full stream\n         *  @memberof Constants#\n         *  @static\n         */this.STREAM='stream';/**\n         *  @constant {string} VIDEO Video media type\n         *  @memberof Constants#\n         *  @static\n         */this.VIDEO='video';/**\n         *  @constant {string} AUDIO Audio media type\n         *  @memberof Constants#\n         *  @static\n         */this.AUDIO='audio';/**\n         *  @constant {string} TEXT Text media type\n         *  @memberof Constants#\n         *  @static\n         */this.TEXT='text';/**\n         *  @constant {string} FRAGMENTED_TEXT Fragmented text media type\n         *  @memberof Constants#\n         *  @static\n         */this.FRAGMENTED_TEXT='fragmentedText';/**\n         *  @constant {string} EMBEDDED_TEXT Embedded text media type\n         *  @memberof Constants#\n         *  @static\n         */this.EMBEDDED_TEXT='embeddedText';/**\n         *  @constant {string} MUXED Muxed (video/audio in the same chunk) media type\n         *  @memberof Constants#\n         *  @static\n         */this.MUXED='muxed';/**\n         *  @constant {string} IMAGE Image media type\n         *  @memberof Constants#\n         *  @static\n         */this.IMAGE='image';/**\n         *  @constant {string} STPP STTP Subtitles format\n         *  @memberof Constants#\n         *  @static\n         */this.STPP='stpp';/**\n         *  @constant {string} TTML STTP Subtitles format\n         *  @memberof Constants#\n         *  @static\n         */this.TTML='ttml';/**\n         *  @constant {string} VTT STTP Subtitles format\n         *  @memberof Constants#\n         *  @static\n         */this.VTT='vtt';/**\n         *  @constant {string} WVTT STTP Subtitles format\n         *  @memberof Constants#\n         *  @static\n         */this.WVTT='wvtt';/**\n         *  @constant {string} ABR_STRATEGY_DYNAMIC Dynamic Adaptive bitrate algorithm\n         *  @memberof Constants#\n         *  @static\n         */this.ABR_STRATEGY_DYNAMIC='abrDynamic';/**\n         *  @constant {string} ABR_STRATEGY_BOLA Adaptive bitrate algorithm based on Bola (buffer level)\n         *  @memberof Constants#\n         *  @static\n         */this.ABR_STRATEGY_BOLA='abrBola';/**\n         *  @constant {string} ABR_STRATEGY_THROUGHPUT Adaptive bitrate algorithm based on throughput\n         *  @memberof Constants#\n         *  @static\n         */this.ABR_STRATEGY_THROUGHPUT='abrThroughput';/**\n         *  @constant {string} MOVING_AVERAGE_SLIDING_WINDOW Moving average sliding window\n         *  @memberof Constants#\n         *  @static\n         */this.MOVING_AVERAGE_SLIDING_WINDOW='slidingWindow';/**\n         *  @constant {string} EWMA Exponential moving average\n         *  @memberof Constants#\n         *  @static\n         */this.MOVING_AVERAGE_EWMA='ewma';/**\n         *  @constant {string} BAD_ARGUMENT_ERROR Invalid Arguments type of error\n         *  @memberof Constants#\n         *  @static\n         */this.BAD_ARGUMENT_ERROR='Invalid Arguments';/**\n         *  @constant {string} MISSING_CONFIG_ERROR Missing ocnfiguration parameters type of error\n         *  @memberof Constants#\n         *  @static\n         */this.MISSING_CONFIG_ERROR='Missing config parameter(s)';this.LOCATION='Location';this.INITIALIZE='initialize';this.TEXT_SHOWING='showing';this.TEXT_HIDDEN='hidden';this.CC1='CC1';this.CC3='CC3';this.UTF8='utf-8';this.SCHEME_ID_URI='schemeIdUri';this.START_TIME='starttime';this.SERVICE_DESCRIPTION_LL_SCHEME='urn:dvb:dash:lowlatency:scope:2019';this.SUPPLEMENTAL_PROPERTY_LL_SCHEME='urn:dvb:dash:lowlatency:critical:2019';this.XML='XML';this.ARRAY_BUFFER='ArrayBuffer';}}]);function Constants(){_classCallCheck(this,Constants);this.init();}return Constants;}();var constants=new Constants();exports.default=constants;\n//# sourceMappingURL=Constants.js.map\n","'use strict';\n\nvar utils = require('./../utils');\n\nfunction encode(val) {\n  return encodeURIComponent(val).\n    replace(/%3A/gi, ':').\n    replace(/%24/g, '$').\n    replace(/%2C/gi, ',').\n    replace(/%20/g, '+').\n    replace(/%5B/gi, '[').\n    replace(/%5D/gi, ']');\n}\n\n/**\n * Build a URL by appending params to the end\n *\n * @param {string} url The base of the url (e.g., http://www.google.com)\n * @param {object} [params] The params to be appended\n * @returns {string} The formatted url\n */\nmodule.exports = function buildURL(url, params, paramsSerializer) {\n  /*eslint no-param-reassign:0*/\n  if (!params) {\n    return url;\n  }\n\n  var serializedParams;\n  if (paramsSerializer) {\n    serializedParams = paramsSerializer(params);\n  } else if (utils.isURLSearchParams(params)) {\n    serializedParams = params.toString();\n  } else {\n    var parts = [];\n\n    utils.forEach(params, function serialize(val, key) {\n      if (val === null || typeof val === 'undefined') {\n        return;\n      }\n\n      if (utils.isArray(val)) {\n        key = key + '[]';\n      } else {\n        val = [val];\n      }\n\n      utils.forEach(val, function parseValue(v) {\n        if (utils.isDate(v)) {\n          v = v.toISOString();\n        } else if (utils.isObject(v)) {\n          v = JSON.stringify(v);\n        }\n        parts.push(encode(key) + '=' + encode(v));\n      });\n    });\n\n    serializedParams = parts.join('&');\n  }\n\n  if (serializedParams) {\n    var hashmarkIndex = url.indexOf('#');\n    if (hashmarkIndex !== -1) {\n      url = url.slice(0, hashmarkIndex);\n    }\n\n    url += (url.indexOf('?') === -1 ? '?' : '&') + serializedParams;\n  }\n\n  return url;\n};\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _FactoryMaker=require('../../core/FactoryMaker');var _FactoryMaker2=_interopRequireDefault(_FactoryMaker);function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}/**\n * @module FetchLoader\n * @ignore\n * @description Manages download of resources via HTTP using fetch.\n * @param {Object} cfg - dependencies from parent\n */function FetchLoader(cfg){cfg=cfg||{};var requestModifier=cfg.requestModifier;var boxParser=cfg.boxParser;var instance=void 0;function load(httpRequest){// Variables will be used in the callback functions\nvar requestStartTime=new Date();var request=httpRequest.request;var headers=new Headers();/*jshint ignore:line*/if(request.range){headers.append('Range','bytes='+request.range);}if(!request.requestStartDate){request.requestStartDate=requestStartTime;}if(requestModifier){// modifyRequestHeader expects a XMLHttpRequest object so,\n// to keep backward compatibility, we should expose a setRequestHeader method\n// TODO: Remove RequestModifier dependency on XMLHttpRequest object and define\n// a more generic way to intercept/modify requests\nrequestModifier.modifyRequestHeader({setRequestHeader:function setRequestHeader(header,value){headers.append(header,value);}});}var abortController=void 0;if(typeof window.AbortController==='function'){abortController=new AbortController();/*jshint ignore:line*/httpRequest.abortController=abortController;}var reqOptions={method:httpRequest.method,headers:headers,credentials:httpRequest.withCredentials?'include':undefined,signal:abortController?abortController.signal:undefined};fetch(httpRequest.url,reqOptions).then(function(response){if(!httpRequest.response){httpRequest.response={};}httpRequest.response.status=response.status;httpRequest.response.statusText=response.statusText;httpRequest.response.responseURL=response.url;if(!response.ok){httpRequest.onerror();}var responseHeaders='';var _iteratorNormalCompletion=true;var _didIteratorError=false;var _iteratorError=undefined;try{for(var _iterator=response.headers.keys()[Symbol.iterator](),_step;!(_iteratorNormalCompletion=(_step=_iterator.next()).done);_iteratorNormalCompletion=true){var key=_step.value;responseHeaders+=key+': '+response.headers.get(key)+'\\r\\n';}}catch(err){_didIteratorError=true;_iteratorError=err;}finally{try{if(!_iteratorNormalCompletion&&_iterator.return){_iterator.return();}}finally{if(_didIteratorError){throw _iteratorError;}}}httpRequest.response.responseHeaders=responseHeaders;if(!response.body){// Fetch returning a ReadableStream response body is not currently supported by all browsers.\n// Browser compatibility: https://developer.mozilla.org/en-US/docs/Web/API/Fetch_API\n// If it is not supported, returning the whole segment when it's ready (as xhr)\nreturn response.arrayBuffer().then(function(buffer){httpRequest.response.response=buffer;var event={loaded:buffer.byteLength,total:buffer.byteLength,stream:false};httpRequest.progress(event);httpRequest.onload();httpRequest.onend();return;});}var totalBytes=parseInt(response.headers.get('Content-Length'),10);var bytesReceived=0;var signaledFirstByte=false;var remaining=new Uint8Array();var offset=0;httpRequest.reader=response.body.getReader();var downLoadedData=[];var processResult=function processResult(_ref){var value=_ref.value,done=_ref.done;if(done){if(remaining){// If there is pending data, call progress so network metrics\n// are correctly generated\n// Same structure as https://developer.mozilla.org/en-US/docs/Web/API/XMLHttpRequestEventTarget/onprogress\nhttpRequest.progress({loaded:bytesReceived,total:isNaN(totalBytes)?bytesReceived:totalBytes,lengthComputable:true,time:calculateDownloadedTime(downLoadedData,bytesReceived),stream:true});httpRequest.response.response=remaining.buffer;}httpRequest.onload();httpRequest.onend();return;}if(value&&value.length>0){remaining=concatTypedArray(remaining,value);bytesReceived+=value.length;downLoadedData.push({ts:Date.now(),bytes:value.length});var boxesInfo=boxParser.findLastTopIsoBoxCompleted(['moov','mdat'],remaining,offset);if(boxesInfo.found){var end=boxesInfo.lastCompletedOffset+boxesInfo.size;// If we are going to pass full buffer, avoid copying it and pass\n// complete buffer. Otherwise clone the part of the buffer that is completed\n// and adjust remaining buffer. A clone is needed because ArrayBuffer of a typed-array\n// keeps a reference to the original data\nvar data=void 0;if(end===remaining.length){data=remaining;remaining=new Uint8Array();}else{data=new Uint8Array(remaining.subarray(0,end));remaining=remaining.subarray(end);}// Announce progress but don't track traces. Throughput measures are quite unstable\n// when they are based in small amount of data\nhttpRequest.progress({data:data.buffer,lengthComputable:false,noTrace:true});offset=0;}else{offset=boxesInfo.lastCompletedOffset;// Call progress so it generates traces that will be later used to know when the first byte\n// were received\nif(!signaledFirstByte){httpRequest.progress({lengthComputable:false,noTrace:true});signaledFirstByte=true;}}}read(httpRequest,processResult);};read(httpRequest,processResult);}).catch(function(e){if(httpRequest.onerror){httpRequest.onerror(e);}});}function read(httpRequest,processResult){httpRequest.reader.read().then(processResult).catch(function(e){if(httpRequest.onerror&&httpRequest.response.status===200){// Error, but response code is 200, trigger error\nhttpRequest.onerror(e);}});}function concatTypedArray(remaining,data){if(remaining.length===0){return data;}var result=new Uint8Array(remaining.length+data.length);result.set(remaining);result.set(data,remaining.length);return result;}function abort(request){if(request.abortController){// For firefox and edge\nrequest.abortController.abort();}else if(request.reader){// For Chrome\ntry{request.reader.cancel();}catch(e){// throw exceptions (TypeError) when reader was previously closed,\n// for example, because a network issue\n}}}function calculateDownloadedTime(datum,bytesReceived){datum=datum.filter(function(data){return data.bytes>bytesReceived/4/datum.length;});if(datum.length>1){var time=0;var avgTimeDistance=(datum[datum.length-1].ts-datum[0].ts)/datum.length;datum.forEach(function(data,index){// To be counted the data has to be over a threshold\nvar next=datum[index+1];if(next){var distance=next.ts-data.ts;time+=distance<avgTimeDistance?distance:0;}});return time;}return null;}instance={load:load,abort:abort,calculateDownloadedTime:calculateDownloadedTime};return instance;}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n */FetchLoader.__dashjs_factory_name='FetchLoader';var factory=_FactoryMaker2.default.getClassFactory(FetchLoader);exports.default=factory;\n//# sourceMappingURL=FetchLoader.js.map\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _ProtectionController=require('./controllers/ProtectionController');var _ProtectionController2=_interopRequireDefault(_ProtectionController);var _ProtectionKeyController=require('./controllers/ProtectionKeyController');var _ProtectionKeyController2=_interopRequireDefault(_ProtectionKeyController);var _ProtectionEvents=require('./ProtectionEvents');var _ProtectionEvents2=_interopRequireDefault(_ProtectionEvents);var _ProtectionErrors=require('./errors/ProtectionErrors');var _ProtectionErrors2=_interopRequireDefault(_ProtectionErrors);var _ProtectionModel_21Jan=require('./models/ProtectionModel_21Jan2015');var _ProtectionModel_21Jan2=_interopRequireDefault(_ProtectionModel_21Jan);var _ProtectionModel_3Feb=require('./models/ProtectionModel_3Feb2014');var _ProtectionModel_3Feb2=_interopRequireDefault(_ProtectionModel_3Feb);var _ProtectionModel_01b=require('./models/ProtectionModel_01b');var _ProtectionModel_01b2=_interopRequireDefault(_ProtectionModel_01b);function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}var APIS_ProtectionModel_01b=[// Un-prefixed as per spec\n{// Video Element\ngenerateKeyRequest:'generateKeyRequest',addKey:'addKey',cancelKeyRequest:'cancelKeyRequest',// Events\nneedkey:'needkey',keyerror:'keyerror',keyadded:'keyadded',keymessage:'keymessage'},// Webkit-prefixed (early Chrome versions and Chrome with EME disabled in chrome://flags)\n{// Video Element\ngenerateKeyRequest:'webkitGenerateKeyRequest',addKey:'webkitAddKey',cancelKeyRequest:'webkitCancelKeyRequest',// Events\nneedkey:'webkitneedkey',keyerror:'webkitkeyerror',keyadded:'webkitkeyadded',keymessage:'webkitkeymessage'}];/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n */var APIS_ProtectionModel_3Feb2014=[// Un-prefixed as per spec\n// Chrome 38-39 (and some earlier versions) with chrome://flags -- Enable Encrypted Media Extensions\n{// Video Element\nsetMediaKeys:'setMediaKeys',// MediaKeys\nMediaKeys:'MediaKeys',// MediaKeySession\nrelease:'close',// Events\nneedkey:'needkey',error:'keyerror',message:'keymessage',ready:'keyadded',close:'keyclose'},// MS-prefixed (IE11, Windows 8.1)\n{// Video Element\nsetMediaKeys:'msSetMediaKeys',// MediaKeys\nMediaKeys:'MSMediaKeys',// MediaKeySession\nrelease:'close',// Events\nneedkey:'msneedkey',error:'mskeyerror',message:'mskeymessage',ready:'mskeyadded',close:'mskeyclose'}];function Protection(){var instance=void 0;var context=this.context;/**\n     * Create a ProtectionController and associated ProtectionModel for use with\n     * a single piece of content.\n     *\n     * @param {Object} config\n     * @return {ProtectionController} protection controller\n     *\n     */function createProtectionSystem(config){var controller=null;var protectionKeyController=(0,_ProtectionKeyController2.default)(context).getInstance();protectionKeyController.setConfig({debug:config.debug,BASE64:config.BASE64});protectionKeyController.initialize();var protectionModel=getProtectionModel(config);if(!controller&&protectionModel){//TODO add ability to set external controller if still needed at all?\ncontroller=(0,_ProtectionController2.default)(context).create({protectionModel:protectionModel,protectionKeyController:protectionKeyController,eventBus:config.eventBus,debug:config.debug,events:config.events,BASE64:config.BASE64,constants:config.constants});config.capabilities.setEncryptedMediaSupported(true);}return controller;}function getProtectionModel(config){var debug=config.debug;var logger=debug.getLogger(instance);var eventBus=config.eventBus;var errHandler=config.errHandler;var videoElement=config.videoModel?config.videoModel.getElement():null;if((!videoElement||videoElement.onencrypted!==undefined)&&(!videoElement||videoElement.mediaKeys!==undefined)){logger.info('EME detected on this user agent! (ProtectionModel_21Jan2015)');return(0,_ProtectionModel_21Jan2.default)(context).create({debug:debug,eventBus:eventBus,events:config.events});}else if(getAPI(videoElement,APIS_ProtectionModel_3Feb2014)){logger.info('EME detected on this user agent! (ProtectionModel_3Feb2014)');return(0,_ProtectionModel_3Feb2.default)(context).create({debug:debug,eventBus:eventBus,events:config.events,api:getAPI(videoElement,APIS_ProtectionModel_3Feb2014)});}else if(getAPI(videoElement,APIS_ProtectionModel_01b)){logger.info('EME detected on this user agent! (ProtectionModel_01b)');return(0,_ProtectionModel_01b2.default)(context).create({debug:debug,eventBus:eventBus,errHandler:errHandler,events:config.events,api:getAPI(videoElement,APIS_ProtectionModel_01b)});}else{logger.warn('No supported version of EME detected on this user agent! - Attempts to play encrypted content will fail!');return null;}}function getAPI(videoElement,apis){for(var i=0;i<apis.length;i++){var api=apis[i];// detect if api is supported by browser\n// check only first function in api -> should be fine\nif(typeof videoElement[api[Object.keys(api)[0]]]!=='function'){continue;}return api;}return null;}instance={createProtectionSystem:createProtectionSystem};return instance;}Protection.__dashjs_factory_name='Protection';var factory=dashjs.FactoryMaker.getClassFactory(Protection);/* jshint ignore:line */factory.events=_ProtectionEvents2.default;factory.errors=_ProtectionErrors2.default;dashjs.FactoryMaker.updateClassFactory(Protection.__dashjs_factory_name,factory);/* jshint ignore:line */exports.default=factory;\n//# sourceMappingURL=Protection.js.map\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _HandlerHelpers=require('../../utils/HandlerHelpers');var _HandlerHelpers2=_interopRequireDefault(_HandlerHelpers);function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}function BufferLevelHandler(config){config=config||{};var instance=void 0,reportingController=void 0,n=void 0,name=void 0,interval=void 0,lastReportedTime=void 0;var context=this.context;var handlerHelpers=(0,_HandlerHelpers2.default)(context).getInstance();var storedVOs=[];var metricsConstants=config.metricsConstants;function getLowestBufferLevelVO(){try{return Object.keys(storedVOs).map(function(key){return storedVOs[key];}).reduce(function(a,b){return a.level<b.level?a:b;});}catch(e){return;}}function intervalCallback(){var vo=getLowestBufferLevelVO();if(vo){if(lastReportedTime!==vo.t){lastReportedTime=vo.t;reportingController.report(name,vo);}}}function initialize(basename,rc,n_ms){if(rc){// this will throw if n is invalid, to be\n// caught by the initialize caller.\nn=handlerHelpers.validateN(n_ms);reportingController=rc;name=handlerHelpers.reconstructFullMetricName(basename,n_ms);interval=setInterval(intervalCallback,n);}}function reset(){clearInterval(interval);interval=null;n=0;reportingController=null;lastReportedTime=null;}function handleNewMetric(metric,vo,type){if(metric===metricsConstants.BUFFER_LEVEL){storedVOs[type]=vo;}}instance={initialize:initialize,reset:reset,handleNewMetric:handleNewMetric};return instance;}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n */BufferLevelHandler.__dashjs_factory_name='BufferLevelHandler';exports.default=dashjs.FactoryMaker.getClassFactory(BufferLevelHandler);/* jshint ignore:line */\n//# sourceMappingURL=BufferLevelHandler.js.map\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});exports.getVersionString=getVersionString;var VERSION='3.1.0';function getVersionString(){return VERSION;}\n//# sourceMappingURL=Version.js.map\n","var getBuiltIn = require('../internals/get-built-in');\n\nmodule.exports = getBuiltIn('navigator', 'userAgent') || '';\n","// see https://tools.ietf.org/html/rfc1808\n\n(function (root) {\n  var URL_REGEX =\n    /^((?:[a-zA-Z0-9+\\-.]+:)?)(\\/\\/[^\\/?#]*)?((?:[^\\/?#]*\\/)*[^;?#]*)?(;[^?#]*)?(\\?[^#]*)?(#[^]*)?$/;\n  var FIRST_SEGMENT_REGEX = /^([^\\/?#]*)([^]*)$/;\n  var SLASH_DOT_REGEX = /(?:\\/|^)\\.(?=\\/)/g;\n  var SLASH_DOT_DOT_REGEX = /(?:\\/|^)\\.\\.\\/(?!\\.\\.\\/)[^\\/]*(?=\\/)/g;\n\n  var URLToolkit = {\n    // If opts.alwaysNormalize is true then the path will always be normalized even when it starts with / or //\n    // E.g\n    // With opts.alwaysNormalize = false (default, spec compliant)\n    // http://a.com/b/cd + /e/f/../g => http://a.com/e/f/../g\n    // With opts.alwaysNormalize = true (not spec compliant)\n    // http://a.com/b/cd + /e/f/../g => http://a.com/e/g\n    buildAbsoluteURL: function (baseURL, relativeURL, opts) {\n      opts = opts || {};\n      // remove any remaining space and CRLF\n      baseURL = baseURL.trim();\n      relativeURL = relativeURL.trim();\n      if (!relativeURL) {\n        // 2a) If the embedded URL is entirely empty, it inherits the\n        // entire base URL (i.e., is set equal to the base URL)\n        // and we are done.\n        if (!opts.alwaysNormalize) {\n          return baseURL;\n        }\n        var basePartsForNormalise = URLToolkit.parseURL(baseURL);\n        if (!basePartsForNormalise) {\n          throw new Error('Error trying to parse base URL.');\n        }\n        basePartsForNormalise.path = URLToolkit.normalizePath(\n          basePartsForNormalise.path\n        );\n        return URLToolkit.buildURLFromParts(basePartsForNormalise);\n      }\n      var relativeParts = URLToolkit.parseURL(relativeURL);\n      if (!relativeParts) {\n        throw new Error('Error trying to parse relative URL.');\n      }\n      if (relativeParts.scheme) {\n        // 2b) If the embedded URL starts with a scheme name, it is\n        // interpreted as an absolute URL and we are done.\n        if (!opts.alwaysNormalize) {\n          return relativeURL;\n        }\n        relativeParts.path = URLToolkit.normalizePath(relativeParts.path);\n        return URLToolkit.buildURLFromParts(relativeParts);\n      }\n      var baseParts = URLToolkit.parseURL(baseURL);\n      if (!baseParts) {\n        throw new Error('Error trying to parse base URL.');\n      }\n      if (!baseParts.netLoc && baseParts.path && baseParts.path[0] !== '/') {\n        // If netLoc missing and path doesn't start with '/', assume everthing before the first '/' is the netLoc\n        // This causes 'example.com/a' to be handled as '//example.com/a' instead of '/example.com/a'\n        var pathParts = FIRST_SEGMENT_REGEX.exec(baseParts.path);\n        baseParts.netLoc = pathParts[1];\n        baseParts.path = pathParts[2];\n      }\n      if (baseParts.netLoc && !baseParts.path) {\n        baseParts.path = '/';\n      }\n      var builtParts = {\n        // 2c) Otherwise, the embedded URL inherits the scheme of\n        // the base URL.\n        scheme: baseParts.scheme,\n        netLoc: relativeParts.netLoc,\n        path: null,\n        params: relativeParts.params,\n        query: relativeParts.query,\n        fragment: relativeParts.fragment,\n      };\n      if (!relativeParts.netLoc) {\n        // 3) If the embedded URL's <net_loc> is non-empty, we skip to\n        // Step 7.  Otherwise, the embedded URL inherits the <net_loc>\n        // (if any) of the base URL.\n        builtParts.netLoc = baseParts.netLoc;\n        // 4) If the embedded URL path is preceded by a slash \"/\", the\n        // path is not relative and we skip to Step 7.\n        if (relativeParts.path[0] !== '/') {\n          if (!relativeParts.path) {\n            // 5) If the embedded URL path is empty (and not preceded by a\n            // slash), then the embedded URL inherits the base URL path\n            builtParts.path = baseParts.path;\n            // 5a) if the embedded URL's <params> is non-empty, we skip to\n            // step 7; otherwise, it inherits the <params> of the base\n            // URL (if any) and\n            if (!relativeParts.params) {\n              builtParts.params = baseParts.params;\n              // 5b) if the embedded URL's <query> is non-empty, we skip to\n              // step 7; otherwise, it inherits the <query> of the base\n              // URL (if any) and we skip to step 7.\n              if (!relativeParts.query) {\n                builtParts.query = baseParts.query;\n              }\n            }\n          } else {\n            // 6) The last segment of the base URL's path (anything\n            // following the rightmost slash \"/\", or the entire path if no\n            // slash is present) is removed and the embedded URL's path is\n            // appended in its place.\n            var baseURLPath = baseParts.path;\n            var newPath =\n              baseURLPath.substring(0, baseURLPath.lastIndexOf('/') + 1) +\n              relativeParts.path;\n            builtParts.path = URLToolkit.normalizePath(newPath);\n          }\n        }\n      }\n      if (builtParts.path === null) {\n        builtParts.path = opts.alwaysNormalize\n          ? URLToolkit.normalizePath(relativeParts.path)\n          : relativeParts.path;\n      }\n      return URLToolkit.buildURLFromParts(builtParts);\n    },\n    parseURL: function (url) {\n      var parts = URL_REGEX.exec(url);\n      if (!parts) {\n        return null;\n      }\n      return {\n        scheme: parts[1] || '',\n        netLoc: parts[2] || '',\n        path: parts[3] || '',\n        params: parts[4] || '',\n        query: parts[5] || '',\n        fragment: parts[6] || '',\n      };\n    },\n    normalizePath: function (path) {\n      // The following operations are\n      // then applied, in order, to the new path:\n      // 6a) All occurrences of \"./\", where \".\" is a complete path\n      // segment, are removed.\n      // 6b) If the path ends with \".\" as a complete path segment,\n      // that \".\" is removed.\n      path = path.split('').reverse().join('').replace(SLASH_DOT_REGEX, '');\n      // 6c) All occurrences of \"<segment>/../\", where <segment> is a\n      // complete path segment not equal to \"..\", are removed.\n      // Removal of these path segments is performed iteratively,\n      // removing the leftmost matching pattern on each iteration,\n      // until no matching pattern remains.\n      // 6d) If the path ends with \"<segment>/..\", where <segment> is a\n      // complete path segment not equal to \"..\", that\n      // \"<segment>/..\" is removed.\n      while (\n        path.length !== (path = path.replace(SLASH_DOT_DOT_REGEX, '')).length\n      ) {}\n      return path.split('').reverse().join('');\n    },\n    buildURLFromParts: function (parts) {\n      return (\n        parts.scheme +\n        parts.netLoc +\n        parts.path +\n        parts.params +\n        parts.query +\n        parts.fragment\n      );\n    },\n  };\n\n  if (typeof exports === 'object' && typeof module === 'object')\n    module.exports = URLToolkit;\n  else if (typeof define === 'function' && define.amd)\n    define([], function () {\n      return URLToolkit;\n    });\n  else if (typeof exports === 'object') exports['URLToolkit'] = URLToolkit;\n  else root['URLToolkit'] = URLToolkit;\n})(this);\n","var classof = require('../internals/classof');\nvar Iterators = require('../internals/iterators');\nvar wellKnownSymbol = require('../internals/well-known-symbol');\n\nvar ITERATOR = wellKnownSymbol('iterator');\n\nmodule.exports = function (it) {\n  if (it != undefined) return it[ITERATOR]\n    || it['@@iterator']\n    || Iterators[classof(it)];\n};\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _FactoryMaker=require('../../core/FactoryMaker');var _FactoryMaker2=_interopRequireDefault(_FactoryMaker);function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}function DroppedFramesHistory(){var values=[];var lastDroppedFrames=0;var lastTotalFrames=0;function push(index,playbackQuality){var droppedVideoFrames=playbackQuality&&playbackQuality.droppedVideoFrames?playbackQuality.droppedVideoFrames:0;var totalVideoFrames=playbackQuality&&playbackQuality.totalVideoFrames?playbackQuality.totalVideoFrames:0;var intervalDroppedFrames=droppedVideoFrames-lastDroppedFrames;lastDroppedFrames=droppedVideoFrames;var intervalTotalFrames=totalVideoFrames-lastTotalFrames;lastTotalFrames=totalVideoFrames;if(!isNaN(index)){if(!values[index]){values[index]={droppedVideoFrames:intervalDroppedFrames,totalVideoFrames:intervalTotalFrames};}else{values[index].droppedVideoFrames+=intervalDroppedFrames;values[index].totalVideoFrames+=intervalTotalFrames;}}}function getDroppedFrameHistory(){return values;}function reset(playbackQuality){values=[];lastDroppedFrames=playbackQuality.droppedVideoFrames;lastTotalFrames=playbackQuality.totalVideoFrames;}return{push:push,getFrameHistory:getDroppedFrameHistory,reset:reset};}DroppedFramesHistory.__dashjs_factory_name='DroppedFramesHistory';var factory=_FactoryMaker2.default.getClassFactory(DroppedFramesHistory);exports.default=factory;\n//# sourceMappingURL=DroppedFramesHistory.js.map\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _Constants=require('../constants/Constants');var _Constants2=_interopRequireDefault(_Constants);var _DataChunk=require('../vo/DataChunk');var _DataChunk2=_interopRequireDefault(_DataChunk);var _FragmentModel=require('../models/FragmentModel');var _FragmentModel2=_interopRequireDefault(_FragmentModel);var _FragmentLoader=require('../FragmentLoader');var _FragmentLoader2=_interopRequireDefault(_FragmentLoader);var _RequestModifier=require('../utils/RequestModifier');var _RequestModifier2=_interopRequireDefault(_RequestModifier);var _EventBus=require('../../core/EventBus');var _EventBus2=_interopRequireDefault(_EventBus);var _Events=require('../../core/events/Events');var _Events2=_interopRequireDefault(_Events);var _Errors=require('../../core/errors/Errors');var _Errors2=_interopRequireDefault(_Errors);var _FactoryMaker=require('../../core/FactoryMaker');var _FactoryMaker2=_interopRequireDefault(_FactoryMaker);var _Debug=require('../../core/Debug');var _Debug2=_interopRequireDefault(_Debug);function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n */function FragmentController(config){config=config||{};var context=this.context;var eventBus=(0,_EventBus2.default)(context).getInstance();var errHandler=config.errHandler;var mediaPlayerModel=config.mediaPlayerModel;var dashMetrics=config.dashMetrics;var debug=(0,_Debug2.default)(context).getInstance();var instance=void 0,logger=void 0,fragmentModels=void 0;function setup(){logger=debug.getLogger(instance);resetInitialSettings();eventBus.on(_Events2.default.FRAGMENT_LOADING_COMPLETED,onFragmentLoadingCompleted,instance);eventBus.on(_Events2.default.FRAGMENT_LOADING_PROGRESS,onFragmentLoadingCompleted,instance);}function getModel(type){var model=fragmentModels[type];if(!model){model=(0,_FragmentModel2.default)(context).create({dashMetrics:dashMetrics,fragmentLoader:(0,_FragmentLoader2.default)(context).create({dashMetrics:dashMetrics,mediaPlayerModel:mediaPlayerModel,errHandler:errHandler,requestModifier:(0,_RequestModifier2.default)(context).getInstance(),settings:config.settings,boxParser:config.boxParser,eventBus:eventBus,events:_Events2.default,errors:_Errors2.default,dashConstants:config.dashConstants,urlUtils:config.urlUtils}),debug:debug,eventBus:eventBus,events:_Events2.default});fragmentModels[type]=model;}return model;}function resetInitialSettings(){for(var model in fragmentModels){fragmentModels[model].reset();}fragmentModels={};}function reset(){eventBus.off(_Events2.default.FRAGMENT_LOADING_COMPLETED,onFragmentLoadingCompleted,this);eventBus.off(_Events2.default.FRAGMENT_LOADING_PROGRESS,onFragmentLoadingCompleted,this);resetInitialSettings();}function createDataChunk(bytes,request,streamId,endFragment){var chunk=new _DataChunk2.default();chunk.streamId=streamId;chunk.mediaInfo=request.mediaInfo;chunk.segmentType=request.type;chunk.start=request.startTime;chunk.duration=request.duration;chunk.end=chunk.start+chunk.duration;chunk.bytes=bytes;chunk.index=request.index;chunk.quality=request.quality;chunk.representationId=request.representationId;chunk.endFragment=endFragment;return chunk;}function onFragmentLoadingCompleted(e){if(fragmentModels[e.request.mediaType]!==e.sender){return;}var request=e.request;var bytes=e.response;var isInit=request.isInitializationRequest();var streamInfo=request.mediaInfo.streamInfo;if(e.error){if(e.request.mediaType===_Constants2.default.AUDIO||e.request.mediaType===_Constants2.default.VIDEO||e.request.mediaType===_Constants2.default.FRAGMENTED_TEXT){// add service location to blacklist controller - only for audio or video. text should not set errors\neventBus.trigger(_Events2.default.SERVICE_LOCATION_BLACKLIST_ADD,{entry:e.request.serviceLocation});}}if(!bytes||!streamInfo){logger.warn('No '+request.mediaType+' bytes to push or stream is inactive.');return;}var chunk=createDataChunk(bytes,request,streamInfo.id,e.type!==_Events2.default.FRAGMENT_LOADING_PROGRESS);eventBus.trigger(isInit?_Events2.default.INIT_FRAGMENT_LOADED:_Events2.default.MEDIA_FRAGMENT_LOADED,{chunk:chunk,fragmentModel:e.sender});}instance={getModel:getModel,reset:reset};setup();return instance;}FragmentController.__dashjs_factory_name='FragmentController';exports.default=_FactoryMaker2.default.getClassFactory(FragmentController);\n//# sourceMappingURL=FragmentController.js.map\n","\"use strict\";\n\nvar window = require(\"global/window\");\n\nvar _extends = require(\"@babel/runtime/helpers/extends\");\n\nvar isFunction = require('is-function');\n\ncreateXHR.httpHandler = require('./http-handler.js');\n/**\n * @license\n * slighly modified parse-headers 2.0.2 <https://github.com/kesla/parse-headers/>\n * Copyright (c) 2014 David Björklund\n * Available under the MIT license\n * <https://github.com/kesla/parse-headers/blob/master/LICENCE>\n */\n\nvar parseHeaders = function parseHeaders(headers) {\n  var result = {};\n\n  if (!headers) {\n    return result;\n  }\n\n  headers.trim().split('\\n').forEach(function (row) {\n    var index = row.indexOf(':');\n    var key = row.slice(0, index).trim().toLowerCase();\n    var value = row.slice(index + 1).trim();\n\n    if (typeof result[key] === 'undefined') {\n      result[key] = value;\n    } else if (Array.isArray(result[key])) {\n      result[key].push(value);\n    } else {\n      result[key] = [result[key], value];\n    }\n  });\n  return result;\n};\n\nmodule.exports = createXHR; // Allow use of default import syntax in TypeScript\n\nmodule.exports.default = createXHR;\ncreateXHR.XMLHttpRequest = window.XMLHttpRequest || noop;\ncreateXHR.XDomainRequest = \"withCredentials\" in new createXHR.XMLHttpRequest() ? createXHR.XMLHttpRequest : window.XDomainRequest;\nforEachArray([\"get\", \"put\", \"post\", \"patch\", \"head\", \"delete\"], function (method) {\n  createXHR[method === \"delete\" ? \"del\" : method] = function (uri, options, callback) {\n    options = initParams(uri, options, callback);\n    options.method = method.toUpperCase();\n    return _createXHR(options);\n  };\n});\n\nfunction forEachArray(array, iterator) {\n  for (var i = 0; i < array.length; i++) {\n    iterator(array[i]);\n  }\n}\n\nfunction isEmpty(obj) {\n  for (var i in obj) {\n    if (obj.hasOwnProperty(i)) return false;\n  }\n\n  return true;\n}\n\nfunction initParams(uri, options, callback) {\n  var params = uri;\n\n  if (isFunction(options)) {\n    callback = options;\n\n    if (typeof uri === \"string\") {\n      params = {\n        uri: uri\n      };\n    }\n  } else {\n    params = _extends({}, options, {\n      uri: uri\n    });\n  }\n\n  params.callback = callback;\n  return params;\n}\n\nfunction createXHR(uri, options, callback) {\n  options = initParams(uri, options, callback);\n  return _createXHR(options);\n}\n\nfunction _createXHR(options) {\n  if (typeof options.callback === \"undefined\") {\n    throw new Error(\"callback argument missing\");\n  }\n\n  var called = false;\n\n  var callback = function cbOnce(err, response, body) {\n    if (!called) {\n      called = true;\n      options.callback(err, response, body);\n    }\n  };\n\n  function readystatechange() {\n    if (xhr.readyState === 4) {\n      setTimeout(loadFunc, 0);\n    }\n  }\n\n  function getBody() {\n    // Chrome with requestType=blob throws errors arround when even testing access to responseText\n    var body = undefined;\n\n    if (xhr.response) {\n      body = xhr.response;\n    } else {\n      body = xhr.responseText || getXml(xhr);\n    }\n\n    if (isJson) {\n      try {\n        body = JSON.parse(body);\n      } catch (e) {}\n    }\n\n    return body;\n  }\n\n  function errorFunc(evt) {\n    clearTimeout(timeoutTimer);\n\n    if (!(evt instanceof Error)) {\n      evt = new Error(\"\" + (evt || \"Unknown XMLHttpRequest Error\"));\n    }\n\n    evt.statusCode = 0;\n    return callback(evt, failureResponse);\n  } // will load the data & process the response in a special response object\n\n\n  function loadFunc() {\n    if (aborted) return;\n    var status;\n    clearTimeout(timeoutTimer);\n\n    if (options.useXDR && xhr.status === undefined) {\n      //IE8 CORS GET successful response doesn't have a status field, but body is fine\n      status = 200;\n    } else {\n      status = xhr.status === 1223 ? 204 : xhr.status;\n    }\n\n    var response = failureResponse;\n    var err = null;\n\n    if (status !== 0) {\n      response = {\n        body: getBody(),\n        statusCode: status,\n        method: method,\n        headers: {},\n        url: uri,\n        rawRequest: xhr\n      };\n\n      if (xhr.getAllResponseHeaders) {\n        //remember xhr can in fact be XDR for CORS in IE\n        response.headers = parseHeaders(xhr.getAllResponseHeaders());\n      }\n    } else {\n      err = new Error(\"Internal XMLHttpRequest Error\");\n    }\n\n    return callback(err, response, response.body);\n  }\n\n  var xhr = options.xhr || null;\n\n  if (!xhr) {\n    if (options.cors || options.useXDR) {\n      xhr = new createXHR.XDomainRequest();\n    } else {\n      xhr = new createXHR.XMLHttpRequest();\n    }\n  }\n\n  var key;\n  var aborted;\n  var uri = xhr.url = options.uri || options.url;\n  var method = xhr.method = options.method || \"GET\";\n  var body = options.body || options.data;\n  var headers = xhr.headers = options.headers || {};\n  var sync = !!options.sync;\n  var isJson = false;\n  var timeoutTimer;\n  var failureResponse = {\n    body: undefined,\n    headers: {},\n    statusCode: 0,\n    method: method,\n    url: uri,\n    rawRequest: xhr\n  };\n\n  if (\"json\" in options && options.json !== false) {\n    isJson = true;\n    headers[\"accept\"] || headers[\"Accept\"] || (headers[\"Accept\"] = \"application/json\"); //Don't override existing accept header declared by user\n\n    if (method !== \"GET\" && method !== \"HEAD\") {\n      headers[\"content-type\"] || headers[\"Content-Type\"] || (headers[\"Content-Type\"] = \"application/json\"); //Don't override existing accept header declared by user\n\n      body = JSON.stringify(options.json === true ? body : options.json);\n    }\n  }\n\n  xhr.onreadystatechange = readystatechange;\n  xhr.onload = loadFunc;\n  xhr.onerror = errorFunc; // IE9 must have onprogress be set to a unique function.\n\n  xhr.onprogress = function () {// IE must die\n  };\n\n  xhr.onabort = function () {\n    aborted = true;\n  };\n\n  xhr.ontimeout = errorFunc;\n  xhr.open(method, uri, !sync, options.username, options.password); //has to be after open\n\n  if (!sync) {\n    xhr.withCredentials = !!options.withCredentials;\n  } // Cannot set timeout with sync request\n  // not setting timeout on the xhr object, because of old webkits etc. not handling that correctly\n  // both npm's request and jquery 1.x use this kind of timeout, so this is being consistent\n\n\n  if (!sync && options.timeout > 0) {\n    timeoutTimer = setTimeout(function () {\n      if (aborted) return;\n      aborted = true; //IE9 may still call readystatechange\n\n      xhr.abort(\"timeout\");\n      var e = new Error(\"XMLHttpRequest timeout\");\n      e.code = \"ETIMEDOUT\";\n      errorFunc(e);\n    }, options.timeout);\n  }\n\n  if (xhr.setRequestHeader) {\n    for (key in headers) {\n      if (headers.hasOwnProperty(key)) {\n        xhr.setRequestHeader(key, headers[key]);\n      }\n    }\n  } else if (options.headers && !isEmpty(options.headers)) {\n    throw new Error(\"Headers cannot be set on an XDomainRequest object\");\n  }\n\n  if (\"responseType\" in options) {\n    xhr.responseType = options.responseType;\n  }\n\n  if (\"beforeSend\" in options && typeof options.beforeSend === \"function\") {\n    options.beforeSend(xhr);\n  } // Microsoft Edge browser sends \"undefined\" when send is called with undefined value.\n  // XMLHttpRequest spec says to pass null as body to indicate no body\n  // See https://github.com/naugtur/xhr/issues/100.\n\n\n  xhr.send(body || null);\n  return xhr;\n}\n\nfunction getXml(xhr) {\n  // xhr.responseXML will throw Exception \"InvalidStateError\" or \"DOMException\"\n  // See https://developer.mozilla.org/en-US/docs/Web/API/XMLHttpRequest/responseXML.\n  try {\n    if (xhr.responseType === \"document\") {\n      return xhr.responseXML;\n    }\n\n    var firefoxBugTakenEffect = xhr.responseXML && xhr.responseXML.documentElement.nodeName === \"parsererror\";\n\n    if (xhr.responseType === \"\" && !firefoxBugTakenEffect) {\n      return xhr.responseXML;\n    }\n  } catch (e) {}\n\n  return null;\n}\n\nfunction noop() {}","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _ABRRulesCollection=require('../rules/abr/ABRRulesCollection');var _ABRRulesCollection2=_interopRequireDefault(_ABRRulesCollection);var _Constants=require('../constants/Constants');var _Constants2=_interopRequireDefault(_Constants);var _MetricsConstants=require('../constants/MetricsConstants');var _MetricsConstants2=_interopRequireDefault(_MetricsConstants);var _BitrateInfo=require('../vo/BitrateInfo');var _BitrateInfo2=_interopRequireDefault(_BitrateInfo);var _FragmentModel=require('../models/FragmentModel');var _FragmentModel2=_interopRequireDefault(_FragmentModel);var _EventBus=require('../../core/EventBus');var _EventBus2=_interopRequireDefault(_EventBus);var _Events=require('../../core/events/Events');var _Events2=_interopRequireDefault(_Events);var _FactoryMaker=require('../../core/FactoryMaker');var _FactoryMaker2=_interopRequireDefault(_FactoryMaker);var _RulesContext=require('../rules/RulesContext');var _RulesContext2=_interopRequireDefault(_RulesContext);var _SwitchRequest=require('../rules/SwitchRequest');var _SwitchRequest2=_interopRequireDefault(_SwitchRequest);var _SwitchRequestHistory=require('../rules/SwitchRequestHistory');var _SwitchRequestHistory2=_interopRequireDefault(_SwitchRequestHistory);var _DroppedFramesHistory=require('../rules/DroppedFramesHistory');var _DroppedFramesHistory2=_interopRequireDefault(_DroppedFramesHistory);var _ThroughputHistory=require('../rules/ThroughputHistory');var _ThroughputHistory2=_interopRequireDefault(_ThroughputHistory);var _Debug=require('../../core/Debug');var _Debug2=_interopRequireDefault(_Debug);var _HTTPRequest=require('../vo/metrics/HTTPRequest');var _SupervisorTools=require('../utils/SupervisorTools');function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n */var DEFAULT_VIDEO_BITRATE=1000;var DEFAULT_AUDIO_BITRATE=100;var QUALITY_DEFAULT=0;function AbrController(){var context=this.context;var debug=(0,_Debug2.default)(context).getInstance();var eventBus=(0,_EventBus2.default)(context).getInstance();var instance=void 0,logger=void 0,abrRulesCollection=void 0,streamController=void 0,topQualities=void 0,qualityDict=void 0,streamProcessorDict=void 0,abandonmentStateDict=void 0,abandonmentTimeout=void 0,windowResizeEventCalled=void 0,elementWidth=void 0,elementHeight=void 0,adapter=void 0,videoModel=void 0,mediaPlayerModel=void 0,domStorage=void 0,playbackIndex=void 0,switchHistoryDict=void 0,droppedFramesHistory=void 0,throughputHistory=void 0,isUsingBufferOccupancyABRDict=void 0,dashMetrics=void 0,settings=void 0;function setup(){logger=debug.getLogger(instance);resetInitialSettings();}function registerStreamType(type,streamProcessor){switchHistoryDict[type]=switchHistoryDict[type]||(0,_SwitchRequestHistory2.default)(context).create();streamProcessorDict[type]=streamProcessor;abandonmentStateDict[type]=abandonmentStateDict[type]||{};abandonmentStateDict[type].state=_MetricsConstants2.default.ALLOW_LOAD;isUsingBufferOccupancyABRDict[type]=false;eventBus.on(_Events2.default.LOADING_PROGRESS,onFragmentLoadProgress,this);if(type==_Constants2.default.VIDEO){eventBus.on(_Events2.default.QUALITY_CHANGE_RENDERED,onQualityChangeRendered,this);droppedFramesHistory=droppedFramesHistory||(0,_DroppedFramesHistory2.default)(context).create();setElementSize();}eventBus.on(_Events2.default.METRIC_ADDED,onMetricAdded,this);eventBus.on(_Events2.default.PERIOD_SWITCH_COMPLETED,createAbrRulesCollection,this);throughputHistory=throughputHistory||(0,_ThroughputHistory2.default)(context).create({settings:settings});}function unRegisterStreamType(type){delete streamProcessorDict[type];}function createAbrRulesCollection(){abrRulesCollection=(0,_ABRRulesCollection2.default)(context).create({dashMetrics:dashMetrics,mediaPlayerModel:mediaPlayerModel,settings:settings});abrRulesCollection.initialize();}function resetInitialSettings(){topQualities={};qualityDict={};abandonmentStateDict={};streamProcessorDict={};switchHistoryDict={};isUsingBufferOccupancyABRDict={};if(windowResizeEventCalled===undefined){windowResizeEventCalled=false;}playbackIndex=undefined;droppedFramesHistory=undefined;throughputHistory=undefined;clearTimeout(abandonmentTimeout);abandonmentTimeout=null;}function reset(){resetInitialSettings();eventBus.off(_Events2.default.LOADING_PROGRESS,onFragmentLoadProgress,this);eventBus.off(_Events2.default.QUALITY_CHANGE_RENDERED,onQualityChangeRendered,this);eventBus.off(_Events2.default.METRIC_ADDED,onMetricAdded,this);eventBus.off(_Events2.default.PERIOD_SWITCH_COMPLETED,createAbrRulesCollection,this);if(abrRulesCollection){abrRulesCollection.reset();}}function setConfig(config){if(!config)return;if(config.streamController){streamController=config.streamController;}if(config.domStorage){domStorage=config.domStorage;}if(config.mediaPlayerModel){mediaPlayerModel=config.mediaPlayerModel;}if(config.dashMetrics){dashMetrics=config.dashMetrics;}if(config.adapter){adapter=config.adapter;}if(config.videoModel){videoModel=config.videoModel;}if(config.settings){settings=config.settings;}}function checkConfig(){if(!domStorage||!domStorage.hasOwnProperty('getSavedBitrateSettings')){throw new Error(_Constants2.default.MISSING_CONFIG_ERROR);}}function onQualityChangeRendered(e){if(e.mediaType===_Constants2.default.VIDEO){playbackIndex=e.oldQuality;droppedFramesHistory.push(playbackIndex,videoModel.getPlaybackQuality());}}function onMetricAdded(e){if(e.metric===_MetricsConstants2.default.HTTP_REQUEST&&e.value&&e.value.type===_HTTPRequest.HTTPRequest.MEDIA_SEGMENT_TYPE&&(e.mediaType===_Constants2.default.AUDIO||e.mediaType===_Constants2.default.VIDEO)){throughputHistory.push(e.mediaType,e.value,settings.get().streaming.abr.useDeadTimeLatency);}if(e.metric===_MetricsConstants2.default.BUFFER_LEVEL&&(e.mediaType===_Constants2.default.AUDIO||e.mediaType===_Constants2.default.VIDEO)){updateIsUsingBufferOccupancyABR(e.mediaType,0.001*e.value.level);}}function getTopQualityIndexFor(type,id){var idx=void 0;topQualities[id]=topQualities[id]||{};if(!topQualities[id].hasOwnProperty(type)){topQualities[id][type]=0;}idx=checkMaxBitrate(topQualities[id][type],type);idx=checkMaxRepresentationRatio(idx,type,topQualities[id][type]);idx=checkPortalSize(idx,type);return idx;}/**\n     * Gets top BitrateInfo for the player\n     * @param {string} type - 'video' or 'audio' are the type options.\n     * @returns {BitrateInfo | null}\n     */function getTopBitrateInfoFor(type){if(type&&streamProcessorDict&&streamProcessorDict[type]){var streamInfo=streamProcessorDict[type].getStreamInfo();if(streamInfo&&streamInfo.id){var idx=getTopQualityIndexFor(type,streamInfo.id);var bitrates=getBitrateList(streamProcessorDict[type].getMediaInfo());return bitrates[idx]?bitrates[idx]:null;}}return null;}/**\n     * @param {string} type\n     * @returns {number} A value of the initial bitrate, kbps\n     * @memberof AbrController#\n     */function getInitialBitrateFor(type){checkConfig();if(type===_Constants2.default.TEXT||type===_Constants2.default.FRAGMENTED_TEXT){return NaN;}var savedBitrate=domStorage.getSavedBitrateSettings(type);var configBitrate=settings.get().streaming.abr.initialBitrate[type];var configRatio=settings.get().streaming.abr.initialRepresentationRatio[type];if(configBitrate===-1){if(configRatio>-1){var representation=adapter.getAdaptationForType(0,type).Representation;if(Array.isArray(representation)){var repIdx=Math.max(Math.round(representation.length*configRatio)-1,0);configBitrate=representation[repIdx].bandwidth;}else{configBitrate=0;}}else if(!isNaN(savedBitrate)){configBitrate=savedBitrate;}else{configBitrate=type===_Constants2.default.VIDEO?DEFAULT_VIDEO_BITRATE:DEFAULT_AUDIO_BITRATE;}}return configBitrate;}function getMaxAllowedBitrateFor(type){return settings.get().streaming.abr.maxBitrate[type];}function getMinAllowedBitrateFor(type){return settings.get().streaming.abr.minBitrate[type];}function getMaxAllowedIndexFor(type){var maxBitrate=getMaxAllowedBitrateFor(type);if(maxBitrate>-1){return getQualityForBitrate(streamProcessorDict[type].getMediaInfo(),maxBitrate);}else{return undefined;}}function getMinAllowedIndexFor(type){var minBitrate=getMinAllowedBitrateFor(type);if(minBitrate>-1){var mediaInfo=streamProcessorDict[type].getMediaInfo();var bitrateList=getBitrateList(mediaInfo);// This returns the quality index <= for the given bitrate\nvar minIdx=getQualityForBitrate(mediaInfo,minBitrate);if(bitrateList[minIdx]&&minIdx<bitrateList.length-1&&bitrateList[minIdx].bitrate<minBitrate*1000){minIdx++;// Go to the next bitrate\n}return minIdx;}else{return undefined;}}function checkPlaybackQuality(type){if(type&&streamProcessorDict&&streamProcessorDict[type]){var streamInfo=streamProcessorDict[type].getStreamInfo();var streamId=streamInfo?streamInfo.id:null;var oldQuality=getQualityFor(type);var rulesContext=(0,_RulesContext2.default)(context).create({abrController:instance,streamProcessor:streamProcessorDict[type],currentValue:oldQuality,switchHistory:switchHistoryDict[type],droppedFramesHistory:droppedFramesHistory,useBufferOccupancyABR:useBufferOccupancyABR(type)});if(droppedFramesHistory){var playbackQuality=videoModel.getPlaybackQuality();if(playbackQuality){droppedFramesHistory.push(playbackIndex,playbackQuality);}}if(!!settings.get().streaming.abr.autoSwitchBitrate[type]){var minIdx=getMinAllowedIndexFor(type);var topQualityIdx=getTopQualityIndexFor(type,streamId);var switchRequest=abrRulesCollection.getMaxQuality(rulesContext);var newQuality=switchRequest.quality;if(minIdx!==undefined&&(newQuality>_SwitchRequest2.default.NO_CHANGE?newQuality:oldQuality)<minIdx){newQuality=minIdx;}if(newQuality>topQualityIdx){newQuality=topQualityIdx;}switchHistoryDict[type].push({oldValue:oldQuality,newValue:newQuality});if(newQuality>_SwitchRequest2.default.NO_CHANGE&&newQuality!=oldQuality){if(abandonmentStateDict[type].state===_MetricsConstants2.default.ALLOW_LOAD||newQuality>oldQuality){changeQuality(type,oldQuality,newQuality,topQualityIdx,switchRequest.reason);}}else if(settings.get().debug.logLevel===_Debug2.default.LOG_LEVEL_DEBUG){var bufferLevel=dashMetrics.getCurrentBufferLevel(type);logger.debug('['+type+'] stay on '+oldQuality+'/'+topQualityIdx+' (buffer: '+bufferLevel+')');}}}}function setPlaybackQuality(type,streamInfo,newQuality,reason){var id=streamInfo.id;var oldQuality=getQualityFor(type);(0,_SupervisorTools.checkInteger)(newQuality);var topQualityIdx=getTopQualityIndexFor(type,id);if(newQuality!==oldQuality&&newQuality>=0&&newQuality<=topQualityIdx){changeQuality(type,oldQuality,newQuality,topQualityIdx,reason);}}function changeQuality(type,oldQuality,newQuality,topQualityIdx,reason){if(type&&streamProcessorDict[type]){var streamInfo=streamProcessorDict[type].getStreamInfo();var id=streamInfo?streamInfo.id:null;if(settings.get().debug.logLevel===_Debug2.default.LOG_LEVEL_DEBUG){var bufferLevel=dashMetrics.getCurrentBufferLevel(type);logger.info('['+type+'] switch from '+oldQuality+' to '+newQuality+'/'+topQualityIdx+' (buffer: '+bufferLevel+') '+(reason?JSON.stringify(reason):'.'));}setQualityFor(type,id,newQuality);eventBus.trigger(_Events2.default.QUALITY_CHANGE_REQUESTED,{mediaType:type,streamInfo:streamInfo,oldQuality:oldQuality,newQuality:newQuality,reason:reason});var bitrate=throughputHistory.getAverageThroughput(type);if(!isNaN(bitrate)){domStorage.setSavedBitrateSettings(type,bitrate);}}}function setAbandonmentStateFor(type,state){abandonmentStateDict[type].state=state;}function getAbandonmentStateFor(type){return abandonmentStateDict[type]?abandonmentStateDict[type].state:null;}/**\n     * @param {MediaInfo} mediaInfo\n     * @param {number} bitrate A bitrate value, kbps\n     * @param {number} latency Expected latency of connection, ms\n     * @returns {number} A quality index <= for the given bitrate\n     * @memberof AbrController#\n     */function getQualityForBitrate(mediaInfo,bitrate,latency){var voRepresentation=mediaInfo&&mediaInfo.type?streamProcessorDict[mediaInfo.type].getRepresentationInfo():null;if(settings.get().streaming.abr.useDeadTimeLatency&&latency&&voRepresentation&&voRepresentation.fragmentDuration){latency=latency/1000;var fragmentDuration=voRepresentation.fragmentDuration;if(latency>fragmentDuration){return 0;}else{var deadTimeRatio=latency/fragmentDuration;bitrate=bitrate*(1-deadTimeRatio);}}var bitrateList=getBitrateList(mediaInfo);for(var i=bitrateList.length-1;i>=0;i--){var bitrateInfo=bitrateList[i];if(bitrate*1000>=bitrateInfo.bitrate){return i;}}return QUALITY_DEFAULT;}/**\n     * @param {MediaInfo} mediaInfo\n     * @returns {Array|null} A list of {@link BitrateInfo} objects\n     * @memberof AbrController#\n     */function getBitrateList(mediaInfo){var infoList=[];if(!mediaInfo||!mediaInfo.bitrateList)return infoList;var bitrateList=mediaInfo.bitrateList;var type=mediaInfo.type;var bitrateInfo=void 0;for(var i=0,ln=bitrateList.length;i<ln;i++){bitrateInfo=new _BitrateInfo2.default();bitrateInfo.mediaType=type;bitrateInfo.qualityIndex=i;bitrateInfo.bitrate=bitrateList[i].bandwidth;bitrateInfo.width=bitrateList[i].width;bitrateInfo.height=bitrateList[i].height;bitrateInfo.scanType=bitrateList[i].scanType;infoList.push(bitrateInfo);}return infoList;}function updateIsUsingBufferOccupancyABR(mediaType,bufferLevel){var strategy=settings.get().streaming.abr.ABRStrategy;if(strategy===_Constants2.default.ABR_STRATEGY_BOLA){isUsingBufferOccupancyABRDict[mediaType]=true;return;}else if(strategy===_Constants2.default.ABR_STRATEGY_THROUGHPUT){isUsingBufferOccupancyABRDict[mediaType]=false;return;}// else ABR_STRATEGY_DYNAMIC\nvar stableBufferTime=mediaPlayerModel.getStableBufferTime();var switchOnThreshold=stableBufferTime;var switchOffThreshold=0.5*stableBufferTime;var useBufferABR=isUsingBufferOccupancyABRDict[mediaType];var newUseBufferABR=bufferLevel>(useBufferABR?switchOffThreshold:switchOnThreshold);// use hysteresis to avoid oscillating rules\nisUsingBufferOccupancyABRDict[mediaType]=newUseBufferABR;if(newUseBufferABR!==useBufferABR){if(newUseBufferABR){logger.info('['+mediaType+'] switching from throughput to buffer occupancy ABR rule (buffer: '+bufferLevel.toFixed(3)+').');}else{logger.info('['+mediaType+'] switching from buffer occupancy to throughput ABR rule (buffer: '+bufferLevel.toFixed(3)+').');}}}function useBufferOccupancyABR(mediaType){return isUsingBufferOccupancyABRDict[mediaType];}function getThroughputHistory(){return throughputHistory;}function updateTopQualityIndex(mediaInfo){var type=mediaInfo.type;var streamId=mediaInfo.streamInfo.id;var max=mediaInfo.representationCount-1;setTopQualityIndex(type,streamId,max);return max;}function isPlayingAtTopQuality(streamInfo){var streamId=streamInfo?streamInfo.id:null;var audioQuality=getQualityFor(_Constants2.default.AUDIO);var videoQuality=getQualityFor(_Constants2.default.VIDEO);var isAtTop=audioQuality===getTopQualityIndexFor(_Constants2.default.AUDIO,streamId)&&videoQuality===getTopQualityIndexFor(_Constants2.default.VIDEO,streamId);return isAtTop;}function getQualityFor(type){if(type&&streamProcessorDict[type]){var streamInfo=streamProcessorDict[type].getStreamInfo();var id=streamInfo?streamInfo.id:null;var quality=void 0;if(id){qualityDict[id]=qualityDict[id]||{};if(!qualityDict[id].hasOwnProperty(type)){qualityDict[id][type]=QUALITY_DEFAULT;}quality=qualityDict[id][type];return quality;}}return QUALITY_DEFAULT;}function setQualityFor(type,id,value){qualityDict[id]=qualityDict[id]||{};qualityDict[id][type]=value;}function setTopQualityIndex(type,id,value){topQualities[id]=topQualities[id]||{};topQualities[id][type]=value;}function checkMaxBitrate(idx,type){var newIdx=idx;if(!streamProcessorDict[type]){return newIdx;}var minIdx=getMinAllowedIndexFor(type);if(minIdx!==undefined){newIdx=Math.max(idx,minIdx);}var maxIdx=getMaxAllowedIndexFor(type);if(maxIdx!==undefined){newIdx=Math.min(newIdx,maxIdx);}return newIdx;}function checkMaxRepresentationRatio(idx,type,maxIdx){var maxRepresentationRatio=settings.get().streaming.abr.maxRepresentationRatio[type];if(isNaN(maxRepresentationRatio)||maxRepresentationRatio>=1||maxRepresentationRatio<0){return idx;}return Math.min(idx,Math.round(maxIdx*maxRepresentationRatio));}function setWindowResizeEventCalled(value){windowResizeEventCalled=value;}function setElementSize(){if(videoModel){var hasPixelRatio=settings.get().streaming.abr.usePixelRatioInLimitBitrateByPortal&&window.hasOwnProperty('devicePixelRatio');var pixelRatio=hasPixelRatio?window.devicePixelRatio:1;elementWidth=videoModel.getClientWidth()*pixelRatio;elementHeight=videoModel.getClientHeight()*pixelRatio;}}function checkPortalSize(idx,type){if(type!==_Constants2.default.VIDEO||!settings.get().streaming.abr.limitBitrateByPortal||!streamProcessorDict[type]){return idx;}if(!windowResizeEventCalled){setElementSize();}var representation=adapter.getAdaptationForType(0,type).Representation;var newIdx=idx;if(elementWidth>0&&elementHeight>0){while(newIdx>0&&representation[newIdx]&&elementWidth<representation[newIdx].width&&elementWidth-representation[newIdx-1].width<representation[newIdx].width-elementWidth){newIdx=newIdx-1;}// Make sure that in case of multiple representation elements have same\n// resolution, every such element is included\nwhile(newIdx<representation.length-1&&representation[newIdx].width===representation[newIdx+1].width){newIdx=newIdx+1;}}return newIdx;}function onFragmentLoadProgress(e){var type=e.request.mediaType;if(!!settings.get().streaming.abr.autoSwitchBitrate[type]){var streamProcessor=streamProcessorDict[type];if(!streamProcessor)return;// There may be a fragment load in progress when we switch periods and recreated some controllers.\nvar rulesContext=(0,_RulesContext2.default)(context).create({abrController:instance,streamProcessor:streamProcessor,currentRequest:e.request,useBufferOccupancyABR:useBufferOccupancyABR(type)});var switchRequest=abrRulesCollection.shouldAbandonFragment(rulesContext);if(switchRequest.quality>_SwitchRequest2.default.NO_CHANGE){var fragmentModel=streamProcessor.getFragmentModel();var request=fragmentModel.getRequests({state:_FragmentModel2.default.FRAGMENT_MODEL_LOADING,index:e.request.index})[0];if(request){//TODO Check if we should abort or if better to finish download. check bytesLoaded/Total\nfragmentModel.abortRequests();setAbandonmentStateFor(type,_MetricsConstants2.default.ABANDON_LOAD);switchHistoryDict[type].reset();switchHistoryDict[type].push({oldValue:getQualityFor(type),newValue:switchRequest.quality,confidence:1,reason:switchRequest.reason});setPlaybackQuality(type,streamController.getActiveStreamInfo(),switchRequest.quality,switchRequest.reason);clearTimeout(abandonmentTimeout);abandonmentTimeout=setTimeout(function(){setAbandonmentStateFor(type,_MetricsConstants2.default.ALLOW_LOAD);abandonmentTimeout=null;},settings.get().streaming.abandonLoadTimeout);}}}}instance={isPlayingAtTopQuality:isPlayingAtTopQuality,updateTopQualityIndex:updateTopQualityIndex,getThroughputHistory:getThroughputHistory,getBitrateList:getBitrateList,getQualityForBitrate:getQualityForBitrate,getTopBitrateInfoFor:getTopBitrateInfoFor,getMaxAllowedIndexFor:getMaxAllowedIndexFor,getMinAllowedIndexFor:getMinAllowedIndexFor,getInitialBitrateFor:getInitialBitrateFor,getQualityFor:getQualityFor,getAbandonmentStateFor:getAbandonmentStateFor,setPlaybackQuality:setPlaybackQuality,checkPlaybackQuality:checkPlaybackQuality,getTopQualityIndexFor:getTopQualityIndexFor,setElementSize:setElementSize,setWindowResizeEventCalled:setWindowResizeEventCalled,createAbrRulesCollection:createAbrRulesCollection,registerStreamType:registerStreamType,unRegisterStreamType:unRegisterStreamType,setConfig:setConfig,reset:reset};setup();return instance;}AbrController.__dashjs_factory_name='AbrController';var factory=_FactoryMaker2.default.getSingletonFactory(AbrController);factory.QUALITY_DEFAULT=QUALITY_DEFAULT;_FactoryMaker2.default.updateSingletonFactory(AbrController.__dashjs_factory_name,factory);exports.default=factory;\n//# sourceMappingURL=AbrController.js.map\n","/**\n * mux.js\n *\n * Copyright (c) Brightcove\n * Licensed Apache-2.0 https://github.com/videojs/mux.js/blob/master/LICENSE\n */\nvar\n  ONE_SECOND_IN_TS = 90000, // 90kHz clock\n  secondsToVideoTs,\n  secondsToAudioTs,\n  videoTsToSeconds,\n  audioTsToSeconds,\n  audioTsToVideoTs,\n  videoTsToAudioTs,\n  metadataTsToSeconds;\n\nsecondsToVideoTs = function(seconds) {\n  return seconds * ONE_SECOND_IN_TS;\n};\n\nsecondsToAudioTs = function(seconds, sampleRate) {\n  return seconds * sampleRate;\n};\n\nvideoTsToSeconds = function(timestamp) {\n  return timestamp / ONE_SECOND_IN_TS;\n};\n\naudioTsToSeconds = function(timestamp, sampleRate) {\n  return timestamp / sampleRate;\n};\n\naudioTsToVideoTs = function(timestamp, sampleRate) {\n  return secondsToVideoTs(audioTsToSeconds(timestamp, sampleRate));\n};\n\nvideoTsToAudioTs = function(timestamp, sampleRate) {\n  return secondsToAudioTs(videoTsToSeconds(timestamp), sampleRate);\n};\n\n/**\n * Adjust ID3 tag or caption timing information by the timeline pts values\n * (if keepOriginalTimestamps is false) and convert to seconds\n */\nmetadataTsToSeconds = function(timestamp, timelineStartPts, keepOriginalTimestamps) {\n  return videoTsToSeconds(keepOriginalTimestamps ? timestamp : timestamp - timelineStartPts);\n};\n\nmodule.exports = {\n  ONE_SECOND_IN_TS: ONE_SECOND_IN_TS,\n  secondsToVideoTs: secondsToVideoTs,\n  secondsToAudioTs: secondsToAudioTs,\n  videoTsToSeconds: videoTsToSeconds,\n  audioTsToSeconds: audioTsToSeconds,\n  audioTsToVideoTs: audioTsToVideoTs,\n  videoTsToAudioTs: videoTsToAudioTs,\n  metadataTsToSeconds: metadataTsToSeconds\n};\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _BaseMatcher2=require('./BaseMatcher');var _BaseMatcher3=_interopRequireDefault(_BaseMatcher2);function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}function _classCallCheck(instance,Constructor){if(!(instance instanceof Constructor)){throw new TypeError(\"Cannot call a class as a function\");}}function _possibleConstructorReturn(self,call){if(!self){throw new ReferenceError(\"this hasn't been initialised - super() hasn't been called\");}return call&&(typeof call===\"object\"||typeof call===\"function\")?call:self;}function _inherits(subClass,superClass){if(typeof superClass!==\"function\"&&superClass!==null){throw new TypeError(\"Super expression must either be null or a function, not \"+typeof superClass);}subClass.prototype=Object.create(superClass&&superClass.prototype,{constructor:{value:subClass,enumerable:false,writable:true,configurable:true}});if(superClass)Object.setPrototypeOf?Object.setPrototypeOf(subClass,superClass):subClass.__proto__=superClass;}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n *//**\n * @classdesc matches and converts xs:datetime to Date\n */var SECONDS_IN_MIN=60;var MINUTES_IN_HOUR=60;var MILLISECONDS_IN_SECONDS=1000;var datetimeRegex=/^([0-9]{4})-([0-9]{2})-([0-9]{2})T([0-9]{2}):([0-9]{2})(?::([0-9]*)(\\.[0-9]*)?)?(?:([+-])([0-9]{2})(?::?)([0-9]{2}))?/;var DateTimeMatcher=function(_BaseMatcher){_inherits(DateTimeMatcher,_BaseMatcher);function DateTimeMatcher(){_classCallCheck(this,DateTimeMatcher);return _possibleConstructorReturn(this,(DateTimeMatcher.__proto__||Object.getPrototypeOf(DateTimeMatcher)).call(this,function(attr){return datetimeRegex.test(attr.value);},function(str){var match=datetimeRegex.exec(str);var utcDate=void 0;// If the string does not contain a timezone offset different browsers can interpret it either\n// as UTC or as a local time so we have to parse the string manually to normalize the given date value for\n// all browsers\nutcDate=Date.UTC(parseInt(match[1],10),parseInt(match[2],10)-1,// months start from zero\nparseInt(match[3],10),parseInt(match[4],10),parseInt(match[5],10),match[6]&&parseInt(match[6],10)||0,match[7]&&parseFloat(match[7])*MILLISECONDS_IN_SECONDS||0);// If the date has timezone offset take it into account as well\nif(match[9]&&match[10]){var timezoneOffset=parseInt(match[9],10)*MINUTES_IN_HOUR+parseInt(match[10],10);utcDate+=(match[8]==='+'?-1:+1)*timezoneOffset*SECONDS_IN_MIN*MILLISECONDS_IN_SECONDS;}return new Date(utcDate);}));}return DateTimeMatcher;}(_BaseMatcher3.default);exports.default=DateTimeMatcher;\n//# sourceMappingURL=DateTimeMatcher.js.map\n","var DESCRIPTORS = require('../internals/descriptors');\nvar definePropertyModule = require('../internals/object-define-property');\nvar anObject = require('../internals/an-object');\nvar objectKeys = require('../internals/object-keys');\n\n// `Object.defineProperties` method\n// https://tc39.github.io/ecma262/#sec-object.defineproperties\nmodule.exports = DESCRIPTORS ? Object.defineProperties : function defineProperties(O, Properties) {\n  anObject(O);\n  var keys = objectKeys(Properties);\n  var length = keys.length;\n  var index = 0;\n  var key;\n  while (length > index) definePropertyModule.f(O, key = keys[index++], Properties[key]);\n  return O;\n};\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _ProtectionConstants=require('../../constants/ProtectionConstants');var _ProtectionConstants2=_interopRequireDefault(_ProtectionConstants);function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}function DRMToday(config){config=config||{};var BASE64=config.BASE64;var keySystems={};keySystems[_ProtectionConstants2.default.WIDEVINE_KEYSTEM_STRING]={responseType:'json',getLicenseMessage:function getLicenseMessage(response){return BASE64.decodeArray(response.license);},getErrorResponse:function getErrorResponse(response){return response;}};keySystems[_ProtectionConstants2.default.PLAYREADY_KEYSTEM_STRING]={responseType:'arraybuffer',getLicenseMessage:function getLicenseMessage(response){return response;},getErrorResponse:function getErrorResponse(response){return String.fromCharCode.apply(null,new Uint8Array(response));}};var instance=void 0;function checkConfig(){if(!BASE64||!BASE64.hasOwnProperty('decodeArray')){throw new Error('Missing config parameter(s)');}}function getServerURLFromMessage(url/*, message, messageType*/){return url;}function getHTTPMethod()/*messageType*/{return'POST';}function getResponseType(keySystemStr/*, messageType*/){return keySystems[keySystemStr].responseType;}function getLicenseMessage(serverResponse,keySystemStr/*, messageType*/){checkConfig();return keySystems[keySystemStr].getLicenseMessage(serverResponse);}function getErrorResponse(serverResponse,keySystemStr/*, messageType*/){return keySystems[keySystemStr].getErrorResponse(serverResponse);}instance={getServerURLFromMessage:getServerURLFromMessage,getHTTPMethod:getHTTPMethod,getResponseType:getResponseType,getLicenseMessage:getLicenseMessage,getErrorResponse:getErrorResponse};return instance;}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n *//**\n * CastLabs DRMToday License Server implementation\n *\n * @implements LicenseServer\n * @class\n */DRMToday.__dashjs_factory_name='DRMToday';exports.default=dashjs.FactoryMaker.getSingletonFactory(DRMToday);/* jshint ignore:line */\n//# sourceMappingURL=DRMToday.js.map\n","'use strict';\n\n/**\n * Update an Error with the specified config, error code, and response.\n *\n * @param {Error} error The error to update.\n * @param {Object} config The config.\n * @param {string} [code] The error code (for example, 'ECONNABORTED').\n * @param {Object} [request] The request.\n * @param {Object} [response] The response.\n * @returns {Error} The error.\n */\nmodule.exports = function enhanceError(error, config, code, request, response) {\n  error.config = config;\n  if (code) {\n    error.code = code;\n  }\n\n  error.request = request;\n  error.response = response;\n  error.isAxiosError = true;\n\n  error.toJSON = function toJSON() {\n    return {\n      // Standard\n      message: this.message,\n      name: this.name,\n      // Microsoft\n      description: this.description,\n      number: this.number,\n      // Mozilla\n      fileName: this.fileName,\n      lineNumber: this.lineNumber,\n      columnNumber: this.columnNumber,\n      stack: this.stack,\n      // Axios\n      config: this.config,\n      code: this.code\n    };\n  };\n  return error;\n};\n","'use strict';\n\nvar utils = require('./../utils');\n\nmodule.exports = (\n  utils.isStandardBrowserEnv() ?\n\n  // Standard browser envs have full support of the APIs needed to test\n  // whether the request URL is of the same origin as current location.\n    (function standardBrowserEnv() {\n      var msie = /(msie|trident)/i.test(navigator.userAgent);\n      var urlParsingNode = document.createElement('a');\n      var originURL;\n\n      /**\n    * Parse a URL to discover it's components\n    *\n    * @param {String} url The URL to be parsed\n    * @returns {Object}\n    */\n      function resolveURL(url) {\n        var href = url;\n\n        if (msie) {\n        // IE needs attribute set twice to normalize properties\n          urlParsingNode.setAttribute('href', href);\n          href = urlParsingNode.href;\n        }\n\n        urlParsingNode.setAttribute('href', href);\n\n        // urlParsingNode provides the UrlUtils interface - http://url.spec.whatwg.org/#urlutils\n        return {\n          href: urlParsingNode.href,\n          protocol: urlParsingNode.protocol ? urlParsingNode.protocol.replace(/:$/, '') : '',\n          host: urlParsingNode.host,\n          search: urlParsingNode.search ? urlParsingNode.search.replace(/^\\?/, '') : '',\n          hash: urlParsingNode.hash ? urlParsingNode.hash.replace(/^#/, '') : '',\n          hostname: urlParsingNode.hostname,\n          port: urlParsingNode.port,\n          pathname: (urlParsingNode.pathname.charAt(0) === '/') ?\n            urlParsingNode.pathname :\n            '/' + urlParsingNode.pathname\n        };\n      }\n\n      originURL = resolveURL(window.location.href);\n\n      /**\n    * Determine if a URL shares the same origin as the current location\n    *\n    * @param {String} requestURL The URL to test\n    * @returns {boolean} True if URL shares the same origin, otherwise false\n    */\n      return function isURLSameOrigin(requestURL) {\n        var parsed = (utils.isString(requestURL)) ? resolveURL(requestURL) : requestURL;\n        return (parsed.protocol === originURL.protocol &&\n            parsed.host === originURL.host);\n      };\n    })() :\n\n  // Non standard browser envs (web workers, react-native) lack needed support.\n    (function nonStandardBrowserEnv() {\n      return function isURLSameOrigin() {\n        return true;\n      };\n    })()\n);\n","\"use strict\";Object.defineProperty(exports,\"__esModule\",{value:true});function _classCallCheck(instance,Constructor){if(!(instance instanceof Constructor)){throw new TypeError(\"Cannot call a class as a function\");}}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n *//**\n * @class\n * @ignore\n */var Thumbnail=function Thumbnail(){_classCallCheck(this,Thumbnail);this.url=null;this.width=null;this.height=null;this.x=null;this.y=null;};exports.default=Thumbnail;\n//# sourceMappingURL=Thumbnail.js.map\n","// Copyright Joyent, Inc. and other Node contributors.\n//\n// Permission is hereby granted, free of charge, to any person obtaining a\n// copy of this software and associated documentation files (the\n// \"Software\"), to deal in the Software without restriction, including\n// without limitation the rights to use, copy, modify, merge, publish,\n// distribute, sublicense, and/or sell copies of the Software, and to permit\n// persons to whom the Software is furnished to do so, subject to the\n// following conditions:\n//\n// The above copyright notice and this permission notice shall be included\n// in all copies or substantial portions of the Software.\n//\n// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS\n// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF\n// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN\n// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,\n// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR\n// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE\n// USE OR OTHER DEALINGS IN THE SOFTWARE.\n\n// NOTE: These type checking functions intentionally don't use `instanceof`\n// because it is fragile and can be easily faked with `Object.create()`.\n\nfunction isArray(arg) {\n  if (Array.isArray) {\n    return Array.isArray(arg);\n  }\n  return objectToString(arg) === '[object Array]';\n}\nexports.isArray = isArray;\n\nfunction isBoolean(arg) {\n  return typeof arg === 'boolean';\n}\nexports.isBoolean = isBoolean;\n\nfunction isNull(arg) {\n  return arg === null;\n}\nexports.isNull = isNull;\n\nfunction isNullOrUndefined(arg) {\n  return arg == null;\n}\nexports.isNullOrUndefined = isNullOrUndefined;\n\nfunction isNumber(arg) {\n  return typeof arg === 'number';\n}\nexports.isNumber = isNumber;\n\nfunction isString(arg) {\n  return typeof arg === 'string';\n}\nexports.isString = isString;\n\nfunction isSymbol(arg) {\n  return typeof arg === 'symbol';\n}\nexports.isSymbol = isSymbol;\n\nfunction isUndefined(arg) {\n  return arg === void 0;\n}\nexports.isUndefined = isUndefined;\n\nfunction isRegExp(re) {\n  return objectToString(re) === '[object RegExp]';\n}\nexports.isRegExp = isRegExp;\n\nfunction isObject(arg) {\n  return typeof arg === 'object' && arg !== null;\n}\nexports.isObject = isObject;\n\nfunction isDate(d) {\n  return objectToString(d) === '[object Date]';\n}\nexports.isDate = isDate;\n\nfunction isError(e) {\n  return (objectToString(e) === '[object Error]' || e instanceof Error);\n}\nexports.isError = isError;\n\nfunction isFunction(arg) {\n  return typeof arg === 'function';\n}\nexports.isFunction = isFunction;\n\nfunction isPrimitive(arg) {\n  return arg === null ||\n         typeof arg === 'boolean' ||\n         typeof arg === 'number' ||\n         typeof arg === 'string' ||\n         typeof arg === 'symbol' ||  // ES6 symbol\n         typeof arg === 'undefined';\n}\nexports.isPrimitive = isPrimitive;\n\nexports.isBuffer = Buffer.isBuffer;\n\nfunction objectToString(o) {\n  return Object.prototype.toString.call(o);\n}\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _KeyPair=require('../vo/KeyPair');var _KeyPair2=_interopRequireDefault(_KeyPair);var _ClearKeyKeySet=require('../vo/ClearKeyKeySet');var _ClearKeyKeySet2=_interopRequireDefault(_ClearKeyKeySet);var _CommonEncryption=require('../CommonEncryption');var _CommonEncryption2=_interopRequireDefault(_CommonEncryption);var _ProtectionConstants=require('../../constants/ProtectionConstants');var _ProtectionConstants2=_interopRequireDefault(_ProtectionConstants);function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n */var uuid='e2719d58-a985-b3c9-781a-b030af78d30e';var systemString=_ProtectionConstants2.default.CLEARKEY_KEYSTEM_STRING;var schemeIdURI='urn:uuid:'+uuid;function KeySystemClearKey(config){config=config||{};var instance=void 0;var BASE64=config.BASE64;/**\n     * Returns desired clearkeys (as specified in the CDM message) from protection data\n     *\n     * @param {ProtectionData} protectionData the protection data\n     * @param {ArrayBuffer} message the ClearKey CDM message\n     * @returns {ClearKeyKeySet} the key set or null if none found\n     * @throws {Error} if a keyID specified in the CDM message was not found in the\n     * protection data\n     * @memberof KeySystemClearKey\n     */function getClearKeysFromProtectionData(protectionData,message){var clearkeySet=null;if(protectionData){// ClearKey is the only system that does not require a license server URL, so we\n// handle it here when keys are specified in protection data\nvar jsonMsg=JSON.parse(String.fromCharCode.apply(null,new Uint8Array(message)));var keyPairs=[];for(var i=0;i<jsonMsg.kids.length;i++){var clearkeyID=jsonMsg.kids[i];var clearkey=protectionData.clearkeys&&protectionData.clearkeys.hasOwnProperty(clearkeyID)?protectionData.clearkeys[clearkeyID]:null;if(!clearkey){throw new Error('DRM: ClearKey keyID ('+clearkeyID+') is not known!');}// KeyIDs from CDM are not base64 padded.  Keys may or may not be padded\nkeyPairs.push(new _KeyPair2.default(clearkeyID,clearkey));}clearkeySet=new _ClearKeyKeySet2.default(keyPairs);}return clearkeySet;}function getInitData(cp){return _CommonEncryption2.default.parseInitDataFromContentProtection(cp,BASE64);}function getRequestHeadersFromMessage()/*message*/{return null;}function getLicenseRequestFromMessage(message){return new Uint8Array(message);}function getLicenseServerURLFromInitData()/*initData*/{return null;}function getCDMData(){return null;}function getSessionId()/*cp*/{return null;}instance={uuid:uuid,schemeIdURI:schemeIdURI,systemString:systemString,getInitData:getInitData,getRequestHeadersFromMessage:getRequestHeadersFromMessage,getLicenseRequestFromMessage:getLicenseRequestFromMessage,getLicenseServerURLFromInitData:getLicenseServerURLFromInitData,getCDMData:getCDMData,getSessionId:getSessionId,getClearKeysFromProtectionData:getClearKeysFromProtectionData};return instance;}KeySystemClearKey.__dashjs_factory_name='KeySystemClearKey';exports.default=dashjs.FactoryMaker.getSingletonFactory(KeySystemClearKey);/* jshint ignore:line */\n//# sourceMappingURL=KeySystemClearKey.js.map\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _FactoryMaker=require('../../../core/FactoryMaker');var _FactoryMaker2=_interopRequireDefault(_FactoryMaker);var _Debug=require('../../../core/Debug');var _Debug2=_interopRequireDefault(_Debug);var _SwitchRequest=require('../SwitchRequest');var _SwitchRequest2=_interopRequireDefault(_SwitchRequest);function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}function SwitchHistoryRule(){var context=this.context;var instance=void 0,logger=void 0;//MAX_SWITCH is the number of drops made. It doesn't consider the size of the drop.\nvar MAX_SWITCH=0.075;//Before this number of switch requests(no switch or actual), don't apply the rule.\n//must be < SwitchRequestHistory SWITCH_REQUEST_HISTORY_DEPTH to enable rule\nvar SAMPLE_SIZE=6;function setup(){logger=(0,_Debug2.default)(context).getInstance().getLogger(instance);}function getMaxIndex(rulesContext){var switchRequestHistory=rulesContext?rulesContext.getSwitchHistory():null;var switchRequests=switchRequestHistory?switchRequestHistory.getSwitchRequests():[];var drops=0;var noDrops=0;var dropSize=0;var switchRequest=(0,_SwitchRequest2.default)(context).create();for(var i=0;i<switchRequests.length;i++){if(switchRequests[i]!==undefined){drops+=switchRequests[i].drops;noDrops+=switchRequests[i].noDrops;dropSize+=switchRequests[i].dropSize;if(drops+noDrops>=SAMPLE_SIZE&&drops/noDrops>MAX_SWITCH){switchRequest.quality=i>0&&switchRequests[i].drops>0?i-1:i;switchRequest.reason={index:switchRequest.quality,drops:drops,noDrops:noDrops,dropSize:dropSize};logger.debug('Switch history rule index: '+switchRequest.quality+' samples: '+(drops+noDrops)+' drops: '+drops);break;}}}return switchRequest;}instance={getMaxIndex:getMaxIndex};setup();return instance;}SwitchHistoryRule.__dashjs_factory_name='SwitchHistoryRule';exports.default=_FactoryMaker2.default.getClassFactory(SwitchHistoryRule);\n//# sourceMappingURL=SwitchHistoryRule.js.map\n","var isObject = require('../internals/is-object');\n\nmodule.exports = function (it) {\n  if (!isObject(it) && it !== null) {\n    throw TypeError(\"Can't set \" + String(it) + ' as a prototype');\n  } return it;\n};\n","'use strict';\nvar charAt = require('../internals/string-multibyte').charAt;\nvar InternalStateModule = require('../internals/internal-state');\nvar defineIterator = require('../internals/define-iterator');\n\nvar STRING_ITERATOR = 'String Iterator';\nvar setInternalState = InternalStateModule.set;\nvar getInternalState = InternalStateModule.getterFor(STRING_ITERATOR);\n\n// `String.prototype[@@iterator]` method\n// https://tc39.github.io/ecma262/#sec-string.prototype-@@iterator\ndefineIterator(String, 'String', function (iterated) {\n  setInternalState(this, {\n    type: STRING_ITERATOR,\n    string: String(iterated),\n    index: 0\n  });\n// `%StringIteratorPrototype%.next` method\n// https://tc39.github.io/ecma262/#sec-%stringiteratorprototype%.next\n}, function next() {\n  var state = getInternalState(this);\n  var string = state.string;\n  var index = state.index;\n  var point;\n  if (index >= string.length) return { value: undefined, done: true };\n  point = charAt(string, index);\n  state.index += point.length;\n  return { value: point, done: false };\n});\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _FactoryMaker=require('../../../core/FactoryMaker');var _FactoryMaker2=_interopRequireDefault(_FactoryMaker);function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}function BasicSelector(config){config=config||{};var instance=void 0;var blacklistController=config.blacklistController;function select(baseUrls){var index=0;var selectedBaseUrl=void 0;if(baseUrls&&baseUrls.some(function(baseUrl,idx){index=idx;return!blacklistController.contains(baseUrl.serviceLocation);})){selectedBaseUrl=baseUrls[index];}return selectedBaseUrl;}instance={select:select};return instance;}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n */BasicSelector.__dashjs_factory_name='BasicSelector';exports.default=_FactoryMaker2.default.getClassFactory(BasicSelector);\n//# sourceMappingURL=BasicSelector.js.map\n","/*! codem-isoboxer v0.3.6 https://github.com/madebyhiro/codem-isoboxer/blob/master/LICENSE.txt */\nvar ISOBoxer = {};\n\nISOBoxer.parseBuffer = function(arrayBuffer) {\n  return new ISOFile(arrayBuffer).parse();\n};\n\nISOBoxer.addBoxProcessor = function(type, parser) {\n  if (typeof type !== 'string' || typeof parser !== 'function') {\n    return;\n  }\n  ISOBox.prototype._boxProcessors[type] = parser;\n};\n\nISOBoxer.createFile = function() {\n  return new ISOFile();\n};\n\n// See ISOBoxer.append() for 'pos' parameter syntax\nISOBoxer.createBox = function(type, parent, pos) {\n  var newBox = ISOBox.create(type);\n  if (parent) {\n    parent.append(newBox, pos);\n  }\n  return newBox;\n};\n\n// See ISOBoxer.append() for 'pos' parameter syntax\nISOBoxer.createFullBox = function(type, parent, pos) {\n  var newBox = ISOBoxer.createBox(type, parent, pos);\n  newBox.version = 0;\n  newBox.flags = 0;\n  return newBox;\n};\n\nISOBoxer.Utils = {};\nISOBoxer.Utils.dataViewToString = function(dataView, encoding) {\n  var impliedEncoding = encoding || 'utf-8';\n  if (typeof TextDecoder !== 'undefined') {\n    return new TextDecoder(impliedEncoding).decode(dataView);\n  }\n  var a = [];\n  var i = 0;\n\n  if (impliedEncoding === 'utf-8') {\n    /* The following algorithm is essentially a rewrite of the UTF8.decode at\n    http://bannister.us/weblog/2007/simple-base64-encodedecode-javascript/\n    */\n\n    while (i < dataView.byteLength) {\n      var c = dataView.getUint8(i++);\n      if (c < 0x80) {\n        // 1-byte character (7 bits)\n      } else if (c < 0xe0) {\n        // 2-byte character (11 bits)\n        c = (c & 0x1f) << 6;\n        c |= (dataView.getUint8(i++) & 0x3f);\n      } else if (c < 0xf0) {\n        // 3-byte character (16 bits)\n        c = (c & 0xf) << 12;\n        c |= (dataView.getUint8(i++) & 0x3f) << 6;\n        c |= (dataView.getUint8(i++) & 0x3f);\n      } else {\n        // 4-byte character (21 bits)\n        c = (c & 0x7) << 18;\n        c |= (dataView.getUint8(i++) & 0x3f) << 12;\n        c |= (dataView.getUint8(i++) & 0x3f) << 6;\n        c |= (dataView.getUint8(i++) & 0x3f);\n      }\n      a.push(String.fromCharCode(c));\n    }\n  } else { // Just map byte-by-byte (probably wrong)\n    while (i < dataView.byteLength) {\n      a.push(String.fromCharCode(dataView.getUint8(i++)));\n    }\n  }\n  return a.join('');\n};\n\nISOBoxer.Utils.utf8ToByteArray = function(string) {\n  // Only UTF-8 encoding is supported by TextEncoder\n  var u, i;\n  if (typeof TextEncoder !== 'undefined') {\n    u = new TextEncoder().encode(string);\n  } else {\n    u = [];\n    for (i = 0; i < string.length; ++i) {\n      var c = string.charCodeAt(i);\n      if (c < 0x80) {\n        u.push(c);\n      } else if (c < 0x800) {\n        u.push(0xC0 | (c >> 6));\n        u.push(0x80 | (63 & c));\n      } else if (c < 0x10000) {\n        u.push(0xE0 | (c >> 12));\n        u.push(0x80 | (63 & (c >> 6)));\n        u.push(0x80 | (63 & c));\n      } else {\n        u.push(0xF0 | (c >> 18));\n        u.push(0x80 | (63 & (c >> 12)));\n        u.push(0x80 | (63 & (c >> 6)));\n        u.push(0x80 | (63 & c));\n      }\n    }\n  }\n  return u;\n};\n\n// Method to append a box in the list of child boxes\n// The 'pos' parameter can be either:\n//   - (number) a position index at which to insert the new box\n//   - (string) the type of the box after which to insert the new box\n//   - (object) the box after which to insert the new box\nISOBoxer.Utils.appendBox = function(parent, box, pos) {\n  box._offset = parent._cursor.offset;\n  box._root = (parent._root ? parent._root : parent);\n  box._raw = parent._raw;\n  box._parent = parent;\n\n  if (pos === -1) {\n    // The new box is a sub-box of the parent but not added in boxes array,\n    // for example when the new box is set as an entry (see dref and stsd for example)\n    return;\n  }\n\n  if (pos === undefined || pos === null) {\n    parent.boxes.push(box);\n    return;\n  }\n\n  var index = -1,\n      type;\n\n  if (typeof pos === \"number\") {\n    index = pos;\n  } else {\n    if (typeof pos === \"string\") {\n      type = pos;\n    } else if (typeof pos === \"object\" && pos.type) {\n      type = pos.type;\n    } else {\n      parent.boxes.push(box);\n      return;\n    }\n\n    for (var i = 0; i < parent.boxes.length; i++) {\n      if (type === parent.boxes[i].type) {\n        index = i + 1;\n        break;\n      }\n    }\n  }\n  parent.boxes.splice(index, 0, box);\n};\n\nif (typeof exports !== 'undefined') {\n  exports.parseBuffer     = ISOBoxer.parseBuffer;\n  exports.addBoxProcessor = ISOBoxer.addBoxProcessor;\n  exports.createFile      = ISOBoxer.createFile;\n  exports.createBox       = ISOBoxer.createBox;\n  exports.createFullBox   = ISOBoxer.createFullBox;\n  exports.Utils           = ISOBoxer.Utils;\n}\n\nISOBoxer.Cursor = function(initialOffset) {\n  this.offset = (typeof initialOffset == 'undefined' ? 0 : initialOffset);\n};\n\nvar ISOFile = function(arrayBuffer) {\n  this._cursor = new ISOBoxer.Cursor();\n  this.boxes = [];\n  if (arrayBuffer) {\n    this._raw = new DataView(arrayBuffer);\n  }\n};\n\nISOFile.prototype.fetch = function(type) {\n  var result = this.fetchAll(type, true);\n  return (result.length ? result[0] : null);\n};\n\nISOFile.prototype.fetchAll = function(type, returnEarly) {\n  var result = [];\n  ISOFile._sweep.call(this, type, result, returnEarly);\n  return result;\n};\n\nISOFile.prototype.parse = function() {\n  this._cursor.offset = 0;\n  this.boxes = [];\n  while (this._cursor.offset < this._raw.byteLength) {\n    var box = ISOBox.parse(this);\n\n    // Box could not be parsed\n    if (typeof box.type === 'undefined') break;\n\n    this.boxes.push(box);\n  }\n  return this;\n};\n\nISOFile._sweep = function(type, result, returnEarly) {\n  if (this.type && this.type == type) result.push(this);\n  for (var box in this.boxes) {\n    if (result.length && returnEarly) return;\n    ISOFile._sweep.call(this.boxes[box], type, result, returnEarly);\n  }\n};\n\nISOFile.prototype.write = function() {\n\n  var length = 0,\n      i;\n\n  for (i = 0; i < this.boxes.length; i++) {\n    length += this.boxes[i].getLength(false);\n  }\n\n  var bytes = new Uint8Array(length);\n  this._rawo = new DataView(bytes.buffer);\n  this.bytes = bytes;\n  this._cursor.offset = 0;\n\n  for (i = 0; i < this.boxes.length; i++) {\n    this.boxes[i].write();\n  }\n\n  return bytes.buffer;\n};\n\nISOFile.prototype.append = function(box, pos) {\n  ISOBoxer.Utils.appendBox(this, box, pos);\n};\nvar ISOBox = function() {\n  this._cursor = new ISOBoxer.Cursor();\n};\n\nISOBox.parse = function(parent) {\n  var newBox = new ISOBox();\n  newBox._offset = parent._cursor.offset;\n  newBox._root = (parent._root ? parent._root : parent);\n  newBox._raw = parent._raw;\n  newBox._parent = parent;\n  newBox._parseBox();\n  parent._cursor.offset = newBox._raw.byteOffset + newBox._raw.byteLength;\n  return newBox;\n};\n\nISOBox.create = function(type) {\n  var newBox = new ISOBox();\n  newBox.type = type;\n  newBox.boxes = [];\n  return newBox;\n};\n\nISOBox.prototype._boxContainers = ['dinf', 'edts', 'mdia', 'meco', 'mfra', 'minf', 'moof', 'moov', 'mvex', 'stbl', 'strk', 'traf', 'trak', 'tref', 'udta', 'vttc', 'sinf', 'schi', 'encv', 'enca'];\n\nISOBox.prototype._boxProcessors = {};\n\n///////////////////////////////////////////////////////////////////////////////////////////////////\n// Generic read/write functions\n\nISOBox.prototype._procField = function (name, type, size) {\n  if (this._parsing) {\n    this[name] = this._readField(type, size);\n  }\n  else {\n    this._writeField(type, size, this[name]);\n  }\n};\n\nISOBox.prototype._procFieldArray = function (name, length, type, size) {\n  var i;\n  if (this._parsing) {\n    this[name] = [];\n    for (i = 0; i < length; i++) {\n      this[name][i] = this._readField(type, size);\n    }\n  }\n  else {\n    for (i = 0; i < this[name].length; i++) {\n      this._writeField(type, size, this[name][i]);\n    }\n  }\n};\n\nISOBox.prototype._procFullBox = function() {\n  this._procField('version', 'uint', 8);\n  this._procField('flags', 'uint', 24);\n};\n\nISOBox.prototype._procEntries = function(name, length, fn) {\n  var i;\n  if (this._parsing) {\n    this[name] = [];\n    for (i = 0; i < length; i++) {\n      this[name].push({});\n      fn.call(this, this[name][i]);\n    }\n  }\n  else {\n    for (i = 0; i < length; i++) {\n      fn.call(this, this[name][i]);\n    }\n  }\n};\n\nISOBox.prototype._procSubEntries = function(entry, name, length, fn) {\n  var i;\n  if (this._parsing) {\n    entry[name] = [];\n    for (i = 0; i < length; i++) {\n      entry[name].push({});\n      fn.call(this, entry[name][i]);\n    }\n  }\n  else {\n    for (i = 0; i < length; i++) {\n      fn.call(this, entry[name][i]);\n    }\n  }\n};\n\nISOBox.prototype._procEntryField = function (entry, name, type, size) {\n  if (this._parsing) {\n    entry[name] = this._readField(type, size);\n  }\n  else {\n    this._writeField(type, size, entry[name]);\n  }\n};\n\nISOBox.prototype._procSubBoxes = function(name, length) {\n  var i;\n  if (this._parsing) {\n    this[name] = [];\n    for (i = 0; i < length; i++) {\n      this[name].push(ISOBox.parse(this));\n    }\n  }\n  else {\n    for (i = 0; i < length; i++) {\n      if (this._rawo) {\n        this[name][i].write();\n      } else {\n        this.size += this[name][i].getLength();\n      }\n    }\n  }\n};\n\n///////////////////////////////////////////////////////////////////////////////////////////////////\n// Read/parse functions\n\nISOBox.prototype._readField = function(type, size) {\n  switch (type) {\n    case 'uint':\n      return this._readUint(size);\n    case 'int':\n      return this._readInt(size);\n    case 'template':\n      return this._readTemplate(size);\n    case 'string':\n      return (size === -1) ? this._readTerminatedString() : this._readString(size);\n    case 'data':\n      return this._readData(size);\n    case 'utf8':\n      return this._readUTF8String();\n    default:\n      return -1;\n  }\n};\n\nISOBox.prototype._readInt = function(size) {\n  var result = null,\n      offset = this._cursor.offset - this._raw.byteOffset;\n  switch(size) {\n  case 8:\n    result = this._raw.getInt8(offset);\n    break;\n  case 16:\n    result = this._raw.getInt16(offset);\n    break;\n  case 32:\n    result = this._raw.getInt32(offset);\n    break;\n  case 64:\n    // Warning: JavaScript cannot handle 64-bit integers natively.\n    // This will give unexpected results for integers >= 2^53\n    var s1 = this._raw.getInt32(offset);\n    var s2 = this._raw.getInt32(offset + 4);\n    result = (s1 * Math.pow(2,32)) + s2;\n    break;\n  }\n  this._cursor.offset += (size >> 3);\n  return result;\n};\n\nISOBox.prototype._readUint = function(size) {\n  var result = null,\n      offset = this._cursor.offset - this._raw.byteOffset,\n      s1, s2;\n  switch(size) {\n  case 8:\n    result = this._raw.getUint8(offset);\n    break;\n  case 16:\n    result = this._raw.getUint16(offset);\n    break;\n  case 24:\n    s1 = this._raw.getUint16(offset);\n    s2 = this._raw.getUint8(offset + 2);\n    result = (s1 << 8) + s2;\n    break;\n  case 32:\n    result = this._raw.getUint32(offset);\n    break;\n  case 64:\n    // Warning: JavaScript cannot handle 64-bit integers natively.\n    // This will give unexpected results for integers >= 2^53\n    s1 = this._raw.getUint32(offset);\n    s2 = this._raw.getUint32(offset + 4);\n    result = (s1 * Math.pow(2,32)) + s2;\n    break;\n  }\n  this._cursor.offset += (size >> 3);\n  return result;\n};\n\nISOBox.prototype._readString = function(length) {\n  var str = '';\n  for (var c = 0; c < length; c++) {\n    var char = this._readUint(8);\n    str += String.fromCharCode(char);\n  }\n  return str;\n};\n\nISOBox.prototype._readTemplate = function(size) {\n  var pre = this._readUint(size / 2);\n  var post = this._readUint(size / 2);\n  return pre + (post / Math.pow(2, size / 2));\n};\n\nISOBox.prototype._readTerminatedString = function() {\n  var str = '';\n  while (this._cursor.offset - this._offset < this._raw.byteLength) {\n    var char = this._readUint(8);\n    if (char === 0) break;\n    str += String.fromCharCode(char);\n  }\n  return str;\n};\n\nISOBox.prototype._readData = function(size) {\n  var length = (size > 0) ? size : (this._raw.byteLength - (this._cursor.offset - this._offset));\n  if (length > 0) {\n    var data = new Uint8Array(this._raw.buffer, this._cursor.offset, length);\n\n    this._cursor.offset += length;\n    return data;\n  }\n  else {\n    return null;\n  }\n};\n\nISOBox.prototype._readUTF8String = function() {\n  var length = this._raw.byteLength - (this._cursor.offset - this._offset);\n  var data = null;\n  if (length > 0) {\n    data = new DataView(this._raw.buffer, this._cursor.offset, length);\n    this._cursor.offset += length;\n  }\n \n  return data ? ISOBoxer.Utils.dataViewToString(data) : data;\n};\n\nISOBox.prototype._parseBox = function() {\n  this._parsing = true;\n  this._cursor.offset = this._offset;\n\n  // return immediately if there are not enough bytes to read the header\n  if (this._offset + 8 > this._raw.buffer.byteLength) {\n    this._root._incomplete = true;\n    return;\n  }\n\n  this._procField('size', 'uint', 32);\n  this._procField('type', 'string', 4);\n\n  if (this.size === 1)      { this._procField('largesize', 'uint', 64); }\n  if (this.type === 'uuid') { this._procFieldArray('usertype', 16, 'uint', 8); }\n\n  switch(this.size) {\n  case 0:\n    this._raw = new DataView(this._raw.buffer, this._offset, (this._raw.byteLength - this._cursor.offset + 8));\n    break;\n  case 1:\n    if (this._offset + this.size > this._raw.buffer.byteLength) {\n      this._incomplete = true;\n      this._root._incomplete = true;\n    } else {\n      this._raw = new DataView(this._raw.buffer, this._offset, this.largesize);\n    }\n    break;\n  default:\n    if (this._offset + this.size > this._raw.buffer.byteLength) {\n      this._incomplete = true;\n      this._root._incomplete = true;\n    } else {\n      this._raw = new DataView(this._raw.buffer, this._offset, this.size);\n    }\n  }\n\n  // additional parsing\n  if (!this._incomplete) {\n    if (this._boxProcessors[this.type]) {\n      this._boxProcessors[this.type].call(this);\n    }\n    if (this._boxContainers.indexOf(this.type) !== -1) {\n      this._parseContainerBox();\n    } else{\n      // Unknown box => read and store box content\n      this._data = this._readData();\n    }\n  }\n};\n\nISOBox.prototype._parseFullBox = function() {\n  this.version = this._readUint(8);\n  this.flags = this._readUint(24);\n};\n\nISOBox.prototype._parseContainerBox = function() {\n  this.boxes = [];\n  while (this._cursor.offset - this._raw.byteOffset < this._raw.byteLength) {\n    this.boxes.push(ISOBox.parse(this));\n  }\n};\n\n///////////////////////////////////////////////////////////////////////////////////////////////////\n// Write functions\n\nISOBox.prototype.append = function(box, pos) {\n  ISOBoxer.Utils.appendBox(this, box, pos);\n};\n\nISOBox.prototype.getLength = function() {\n  this._parsing = false;\n  this._rawo = null;\n\n  this.size = 0;\n  this._procField('size', 'uint', 32);\n  this._procField('type', 'string', 4);\n\n  if (this.size === 1)      { this._procField('largesize', 'uint', 64); }\n  if (this.type === 'uuid') { this._procFieldArray('usertype', 16, 'uint', 8); }\n\n  if (this._boxProcessors[this.type]) {\n    this._boxProcessors[this.type].call(this);\n  }\n\n  if (this._boxContainers.indexOf(this.type) !== -1) {\n    for (var i = 0; i < this.boxes.length; i++) {\n      this.size += this.boxes[i].getLength();\n    }\n  } \n\n  if (this._data) {\n    this._writeData(this._data);\n  }\n\n  return this.size;\n};\n\nISOBox.prototype.write = function() {\n  this._parsing = false;\n  this._cursor.offset = this._parent._cursor.offset;\n\n  switch(this.size) {\n  case 0:\n    this._rawo = new DataView(this._parent._rawo.buffer, this._cursor.offset, (this.parent._rawo.byteLength - this._cursor.offset));\n    break;\n  case 1:\n      this._rawo = new DataView(this._parent._rawo.buffer, this._cursor.offset, this.largesize);\n    break;\n  default:\n      this._rawo = new DataView(this._parent._rawo.buffer, this._cursor.offset, this.size);\n  }\n\n  this._procField('size', 'uint', 32);\n  this._procField('type', 'string', 4);\n\n  if (this.size === 1)      { this._procField('largesize', 'uint', 64); }\n  if (this.type === 'uuid') { this._procFieldArray('usertype', 16, 'uint', 8); }\n\n  if (this._boxProcessors[this.type]) {\n    this._boxProcessors[this.type].call(this);\n  }\n\n  if (this._boxContainers.indexOf(this.type) !== -1) {\n    for (var i = 0; i < this.boxes.length; i++) {\n      this.boxes[i].write();\n    }\n  } \n\n  if (this._data) {\n    this._writeData(this._data);\n  }\n\n  this._parent._cursor.offset += this.size;\n\n  return this.size;\n};\n\nISOBox.prototype._writeInt = function(size, value) {\n  if (this._rawo) {\n    var offset = this._cursor.offset - this._rawo.byteOffset;\n    switch(size) {\n    case 8:\n      this._rawo.setInt8(offset, value);\n      break;\n    case 16:\n      this._rawo.setInt16(offset, value);\n      break;\n    case 32:\n      this._rawo.setInt32(offset, value);\n      break;\n    case 64:\n      // Warning: JavaScript cannot handle 64-bit integers natively.\n      // This will give unexpected results for integers >= 2^53\n      var s1 = Math.floor(value / Math.pow(2,32));\n      var s2 = value - (s1 * Math.pow(2,32));\n      this._rawo.setUint32(offset, s1);\n      this._rawo.setUint32(offset + 4, s2);\n      break;\n    }\n    this._cursor.offset += (size >> 3);\n  } else {\n    this.size += (size >> 3);\n  }\n};\n\nISOBox.prototype._writeUint = function(size, value) {\n\n  if (this._rawo) {\n    var offset = this._cursor.offset - this._rawo.byteOffset,\n        s1, s2;\n    switch(size) {\n    case 8:\n      this._rawo.setUint8(offset, value);\n      break;\n    case 16:\n      this._rawo.setUint16(offset, value);\n      break;\n    case 24:\n      s1 = (value & 0xFFFF00) >> 8;\n      s2 = (value & 0x0000FF);\n      this._rawo.setUint16(offset, s1);\n      this._rawo.setUint8(offset + 2, s2);\n      break;\n    case 32:\n      this._rawo.setUint32(offset, value);\n      break;\n    case 64:\n      // Warning: JavaScript cannot handle 64-bit integers natively.\n      // This will give unexpected results for integers >= 2^53\n      s1 = Math.floor(value / Math.pow(2,32));\n      s2 = value - (s1 * Math.pow(2,32));\n      this._rawo.setUint32(offset, s1);\n      this._rawo.setUint32(offset + 4, s2);\n      break;\n    }\n    this._cursor.offset += (size >> 3);\n  } else {\n    this.size += (size >> 3);\n  }\n};\n\nISOBox.prototype._writeString = function(size, str) {\n  for (var c = 0; c < size; c++) {\n    this._writeUint(8, str.charCodeAt(c));\n  }\n};\n\nISOBox.prototype._writeTerminatedString = function(str) {\n  if (str.length === 0) {\n    return;\n  }\n  for (var c = 0; c < str.length; c++) {\n    this._writeUint(8, str.charCodeAt(c));\n  }\n  this._writeUint(8, 0);\n};\n\nISOBox.prototype._writeTemplate = function(size, value) {\n  var pre = Math.floor(value);\n  var post = (value - pre) * Math.pow(2, size / 2);\n  this._writeUint(size / 2, pre);\n  this._writeUint(size / 2, post);\n};\n\nISOBox.prototype._writeData = function(data) {\n  var i;\n  //data to copy\n  if (data) {\n    if (this._rawo) {\n      //Array and Uint8Array has also to be managed\n      if (data instanceof Array) {\n        var offset = this._cursor.offset - this._rawo.byteOffset;\n        for (var i = 0; i < data.length; i++) {\n          this._rawo.setInt8(offset + i, data[i]);\n        }\n        this._cursor.offset += data.length;\n      } \n\n      if (data instanceof Uint8Array) {\n        this._root.bytes.set(data, this._cursor.offset);\n        this._cursor.offset += data.length;\n      }\n\n    } else {\n      //nothing to copy only size to compute\n      this.size += data.length;\n    }\n  }\n};\n\nISOBox.prototype._writeUTF8String = function(string) {\n  var u = ISOBoxer.Utils.utf8ToByteArray(string);\n  if (this._rawo) {\n    var dataView = new DataView(this._rawo.buffer, this._cursor.offset, u.length);\n    for (var i = 0; i < u.length; i++) {\n      dataView.setUint8(i, u[i]);\n    }\n  } else {\n    this.size += u.length;\n  }\n};\n\nISOBox.prototype._writeField = function(type, size, value) {\n  switch (type) {\n  case 'uint':\n    this._writeUint(size, value);\n    break;\n  case 'int':\n    this._writeInt(size, value);\n    break;\n  case 'template':\n    this._writeTemplate(size, value);\n    break;\n  case 'string':\n      if (size == -1) {\n        this._writeTerminatedString(value);\n      } else {\n        this._writeString(size, value);\n      }\n      break;\n  case 'data':\n    this._writeData(value);\n    break;\n  case 'utf8':\n    this._writeUTF8String(value);\n    break;\n  default:\n    break;\n  }\n};\n\n// ISO/IEC 14496-15:2014 - avc1 box\nISOBox.prototype._boxProcessors['avc1'] = ISOBox.prototype._boxProcessors['encv'] = function() {\n  // SampleEntry fields\n  this._procFieldArray('reserved1', 6,    'uint', 8);\n  this._procField('data_reference_index', 'uint', 16);\n  // VisualSampleEntry fields\n  this._procField('pre_defined1',         'uint',     16);\n  this._procField('reserved2',            'uint',     16);\n  this._procFieldArray('pre_defined2', 3, 'uint',     32);\n  this._procField('width',                'uint',     16);\n  this._procField('height',               'uint',     16);\n  this._procField('horizresolution',      'template', 32);\n  this._procField('vertresolution',       'template', 32);\n  this._procField('reserved3',            'uint',     32);\n  this._procField('frame_count',          'uint',     16);\n  this._procFieldArray('compressorname', 32,'uint',    8);\n  this._procField('depth',                'uint',     16);\n  this._procField('pre_defined3',         'int',      16);\n  // AVCSampleEntry fields\n  this._procField('config', 'data', -1);\n};\n\n// ISO/IEC 14496-12:2012 - 8.7.2 Data Reference Box\nISOBox.prototype._boxProcessors['dref'] = function() {\n  this._procFullBox();\n  this._procField('entry_count', 'uint', 32);\n  this._procSubBoxes('entries', this.entry_count);\n};\n\n// ISO/IEC 14496-12:2012 - 8.6.6 Edit List Box\nISOBox.prototype._boxProcessors['elst'] = function() {\n  this._procFullBox();\n  this._procField('entry_count', 'uint', 32);\n  this._procEntries('entries', this.entry_count, function(entry) {\n    this._procEntryField(entry, 'segment_duration',     'uint', (this.version === 1) ? 64 : 32);\n    this._procEntryField(entry, 'media_time',           'int',  (this.version === 1) ? 64 : 32);\n    this._procEntryField(entry, 'media_rate_integer',   'int',  16);\n    this._procEntryField(entry, 'media_rate_fraction',  'int',  16);\n  });\n};\n\n// ISO/IEC 23009-1:2014 - 5.10.3.3 Event Message Box\nISOBox.prototype._boxProcessors['emsg'] = function() {\n  this._procFullBox();\n  if (this.version == 1) {\n    this._procField('timescale',                'uint',   32);\n    this._procField('presentation_time',        'uint',   64);\n    this._procField('event_duration',           'uint',   32);\n    this._procField('id',                       'uint',   32);\n    this._procField('scheme_id_uri',            'string', -1);\n    this._procField('value',                    'string', -1);\n  } else {\n    this._procField('scheme_id_uri',            'string', -1);\n    this._procField('value',                    'string', -1);\n    this._procField('timescale',                'uint',   32);\n    this._procField('presentation_time_delta',  'uint',   32);\n    this._procField('event_duration',           'uint',   32);\n    this._procField('id',                       'uint',   32);\n  }\n  this._procField('message_data',             'data',   -1);\n};\n// ISO/IEC 14496-12:2012 - 8.1.2 Free Space Box\nISOBox.prototype._boxProcessors['free'] = ISOBox.prototype._boxProcessors['skip'] = function() {\n  this._procField('data', 'data', -1);\n};\n\n// ISO/IEC 14496-12:2012 - 8.12.2 Original Format Box\nISOBox.prototype._boxProcessors['frma'] = function() {\n  this._procField('data_format', 'uint', 32);\n};\n// ISO/IEC 14496-12:2012 - 4.3 File Type Box / 8.16.2 Segment Type Box\nISOBox.prototype._boxProcessors['ftyp'] =\nISOBox.prototype._boxProcessors['styp'] = function() {\n  this._procField('major_brand', 'string', 4);\n  this._procField('minor_version', 'uint', 32);\n  var nbCompatibleBrands = -1;\n  if (this._parsing) {\n    nbCompatibleBrands = (this._raw.byteLength - (this._cursor.offset - this._raw.byteOffset)) / 4;\n  }\n  this._procFieldArray('compatible_brands', nbCompatibleBrands, 'string', 4);\n};\n\n// ISO/IEC 14496-12:2012 - 8.4.3 Handler Reference Box\nISOBox.prototype._boxProcessors['hdlr'] = function() {\n  this._procFullBox();\n  this._procField('pre_defined',      'uint',   32);\n  this._procField('handler_type',     'string', 4);\n  this._procFieldArray('reserved', 3, 'uint', 32);\n  this._procField('name',             'string', -1);\n};\n\n// ISO/IEC 14496-12:2012 - 8.1.1 Media Data Box\nISOBox.prototype._boxProcessors['mdat'] = function() {\n  this._procField('data', 'data', -1);\n};\n\n// ISO/IEC 14496-12:2012 - 8.4.2 Media Header Box\nISOBox.prototype._boxProcessors['mdhd'] = function() {\n  this._procFullBox();\n  this._procField('creation_time',      'uint', (this.version == 1) ? 64 : 32);\n  this._procField('modification_time',  'uint', (this.version == 1) ? 64 : 32);\n  this._procField('timescale',          'uint', 32);\n  this._procField('duration',           'uint', (this.version == 1) ? 64 : 32);\n  if (!this._parsing && typeof this.language === 'string') {\n    // In case of writing and language has been set as a string, then convert it into char codes array\n    this.language = ((this.language.charCodeAt(0) - 0x60) << 10) |\n                    ((this.language.charCodeAt(1) - 0x60) << 5) |\n                    ((this.language.charCodeAt(2) - 0x60));\n  }\n  this._procField('language',           'uint', 16);\n  if (this._parsing) {\n    this.language = String.fromCharCode(((this.language >> 10) & 0x1F) + 0x60,\n                                        ((this.language >> 5) & 0x1F) + 0x60,\n                                        (this.language & 0x1F) + 0x60);\n  }\n  this._procField('pre_defined',        'uint', 16);\n};\n\n// ISO/IEC 14496-12:2012 - 8.8.2 Movie Extends Header Box\nISOBox.prototype._boxProcessors['mehd'] = function() {\n  this._procFullBox();\n  this._procField('fragment_duration', 'uint', (this.version == 1) ? 64 : 32);\n};\n\n// ISO/IEC 14496-12:2012 - 8.8.5 Movie Fragment Header Box\nISOBox.prototype._boxProcessors['mfhd'] = function() {\n  this._procFullBox();\n  this._procField('sequence_number', 'uint', 32);\n};\n\n// ISO/IEC 14496-12:2012 - 8.8.11 Movie Fragment Random Access Box\nISOBox.prototype._boxProcessors['mfro'] = function() {\n  this._procFullBox();\n  this._procField('mfra_size', 'uint', 32); // Called mfra_size to distinguish from the normal \"size\" attribute of a box\n};\n\n\n// ISO/IEC 14496-12:2012 - 8.5.2.2 mp4a box (use AudioSampleEntry definition and naming)\nISOBox.prototype._boxProcessors['mp4a'] = ISOBox.prototype._boxProcessors['enca'] = function() {\n  // SampleEntry fields\n  this._procFieldArray('reserved1', 6,    'uint', 8);\n  this._procField('data_reference_index', 'uint', 16);\n  // AudioSampleEntry fields\n  this._procFieldArray('reserved2', 2,    'uint', 32);\n  this._procField('channelcount',         'uint', 16);\n  this._procField('samplesize',           'uint', 16);\n  this._procField('pre_defined',          'uint', 16);\n  this._procField('reserved3',            'uint', 16);\n  this._procField('samplerate',           'template', 32);\n  // ESDescriptor fields\n  this._procField('esds',                 'data', -1);\n};\n\n// ISO/IEC 14496-12:2012 - 8.2.2 Movie Header Box\nISOBox.prototype._boxProcessors['mvhd'] = function() {\n  this._procFullBox();\n  this._procField('creation_time',      'uint',     (this.version == 1) ? 64 : 32);\n  this._procField('modification_time',  'uint',     (this.version == 1) ? 64 : 32);\n  this._procField('timescale',          'uint',     32);\n  this._procField('duration',           'uint',     (this.version == 1) ? 64 : 32);\n  this._procField('rate',               'template', 32);\n  this._procField('volume',             'template', 16);\n  this._procField('reserved1',          'uint',  16);\n  this._procFieldArray('reserved2', 2,  'uint',     32);\n  this._procFieldArray('matrix', 9,     'template', 32);\n  this._procFieldArray('pre_defined', 6,'uint',   32);\n  this._procField('next_track_ID',      'uint',     32);\n};\n\n// ISO/IEC 14496-30:2014 - WebVTT Cue Payload Box.\nISOBox.prototype._boxProcessors['payl'] = function() {\n  this._procField('cue_text', 'utf8');\n};\n\n//ISO/IEC 23001-7:2011 - 8.1 Protection System Specific Header Box\nISOBox.prototype._boxProcessors['pssh'] = function() {\n  this._procFullBox();\n  \n  this._procFieldArray('SystemID', 16, 'uint', 8);\n  this._procField('DataSize', 'uint', 32);\n  this._procFieldArray('Data', this.DataSize, 'uint', 8);\n};\n// ISO/IEC 14496-12:2012 - 8.12.5 Scheme Type Box\nISOBox.prototype._boxProcessors['schm'] = function() {\n    this._procFullBox();\n    \n    this._procField('scheme_type', 'uint', 32);\n    this._procField('scheme_version', 'uint', 32);\n\n    if (this.flags & 0x000001) {\n        this._procField('scheme_uri', 'string', -1);\n    }\n};\n// ISO/IEC 14496-12:2012 - 8.6.4.1 sdtp box \nISOBox.prototype._boxProcessors['sdtp'] = function() {\n  this._procFullBox();\n\n  var sample_count = -1;\n  if (this._parsing) {\n    sample_count = (this._raw.byteLength - (this._cursor.offset - this._raw.byteOffset));\n  }\n\n  this._procFieldArray('sample_dependency_table', sample_count, 'uint', 8);\n};\n\n// ISO/IEC 14496-12:2012 - 8.16.3 Segment Index Box\nISOBox.prototype._boxProcessors['sidx'] = function() {\n  this._procFullBox();\n  this._procField('reference_ID', 'uint', 32);\n  this._procField('timescale', 'uint', 32);\n  this._procField('earliest_presentation_time', 'uint', (this.version == 1) ? 64 : 32);\n  this._procField('first_offset', 'uint', (this.version == 1) ? 64 : 32);\n  this._procField('reserved', 'uint', 16);\n  this._procField('reference_count', 'uint', 16);\n  this._procEntries('references', this.reference_count, function(entry) {\n    if (!this._parsing) {\n      entry.reference  = (entry.reference_type  & 0x00000001) << 31;\n      entry.reference |= (entry.referenced_size & 0x7FFFFFFF);\n      entry.sap  = (entry.starts_with_SAP & 0x00000001) << 31;\n      entry.sap |= (entry.SAP_type        & 0x00000003) << 28;\n      entry.sap |= (entry.SAP_delta_time  & 0x0FFFFFFF);\n    }\n    this._procEntryField(entry, 'reference', 'uint', 32);\n    this._procEntryField(entry, 'subsegment_duration', 'uint', 32);\n    this._procEntryField(entry, 'sap', 'uint', 32);\n    if (this._parsing) {\n      entry.reference_type = (entry.reference >> 31) & 0x00000001;\n      entry.referenced_size = entry.reference & 0x7FFFFFFF;\n      entry.starts_with_SAP  = (entry.sap >> 31) & 0x00000001;\n      entry.SAP_type = (entry.sap >> 28) & 0x00000007;\n      entry.SAP_delta_time = (entry.sap  & 0x0FFFFFFF);\n    }\n  });\n};\n\n// ISO/IEC 14496-12:2012 - 8.4.5.3 Sound Media Header Box\nISOBox.prototype._boxProcessors['smhd'] = function() {\n  this._procFullBox();\n  this._procField('balance',  'uint', 16);\n  this._procField('reserved', 'uint', 16);\n};\n\n// ISO/IEC 14496-12:2012 - 8.16.4 Subsegment Index Box\nISOBox.prototype._boxProcessors['ssix'] = function() {\n  this._procFullBox();\n  this._procField('subsegment_count', 'uint', 32);\n  this._procEntries('subsegments', this.subsegment_count, function(subsegment) {\n    this._procEntryField(subsegment, 'ranges_count', 'uint', 32);\n    this._procSubEntries(subsegment, 'ranges', subsegment.ranges_count, function(range) {\n      this._procEntryField(range, 'level', 'uint', 8);\n      this._procEntryField(range, 'range_size', 'uint', 24);\n    });\n  });\n};\n\n// ISO/IEC 14496-12:2012 - 8.5.2 Sample Description Box\nISOBox.prototype._boxProcessors['stsd'] = function() {\n  this._procFullBox();\n  this._procField('entry_count', 'uint', 32);\n  this._procSubBoxes('entries', this.entry_count);\n};\n\n// ISO/IEC 14496-12:2015 - 8.7.7 Sub-Sample Information Box\nISOBox.prototype._boxProcessors['subs'] = function () {\n  this._procFullBox();\n  this._procField('entry_count', 'uint', 32);\n  this._procEntries('entries', this.entry_count, function(entry) {\n    this._procEntryField(entry, 'sample_delta', 'uint', 32);\n    this._procEntryField(entry, 'subsample_count', 'uint', 16);\n    this._procSubEntries(entry, 'subsamples', entry.subsample_count, function(subsample) {\n      this._procEntryField(subsample, 'subsample_size', 'uint', (this.version === 1) ? 32 : 16);\n      this._procEntryField(subsample, 'subsample_priority', 'uint', 8);\n      this._procEntryField(subsample, 'discardable', 'uint', 8);\n      this._procEntryField(subsample, 'codec_specific_parameters', 'uint', 32);\n    });\n  });\n};\n\n//ISO/IEC 23001-7:2011 - 8.2 Track Encryption Box\nISOBox.prototype._boxProcessors['tenc'] = function() {\n    this._procFullBox();\n\n    this._procField('default_IsEncrypted', 'uint', 24);\n    this._procField('default_IV_size', 'uint', 8);\n    this._procFieldArray('default_KID', 16,    'uint', 8);\n };\n\n// ISO/IEC 14496-12:2012 - 8.8.12 Track Fragmnent Decode Time\nISOBox.prototype._boxProcessors['tfdt'] = function() {\n  this._procFullBox();\n  this._procField('baseMediaDecodeTime', 'uint', (this.version == 1) ? 64 : 32);\n};\n\n// ISO/IEC 14496-12:2012 - 8.8.7 Track Fragment Header Box\nISOBox.prototype._boxProcessors['tfhd'] = function() {\n  this._procFullBox();\n  this._procField('track_ID', 'uint', 32);\n  if (this.flags & 0x01) this._procField('base_data_offset',          'uint', 64);\n  if (this.flags & 0x02) this._procField('sample_description_offset', 'uint', 32);\n  if (this.flags & 0x08) this._procField('default_sample_duration',   'uint', 32);\n  if (this.flags & 0x10) this._procField('default_sample_size',       'uint', 32);\n  if (this.flags & 0x20) this._procField('default_sample_flags',      'uint', 32);\n};\n\n// ISO/IEC 14496-12:2012 - 8.8.10 Track Fragment Random Access Box\nISOBox.prototype._boxProcessors['tfra'] = function() {\n  this._procFullBox();\n  this._procField('track_ID', 'uint', 32);\n  if (!this._parsing) {\n    this.reserved = 0;\n    this.reserved |= (this.length_size_of_traf_num  & 0x00000030) << 4;\n    this.reserved |= (this.length_size_of_trun_num  & 0x0000000C) << 2;\n    this.reserved |= (this.length_size_of_sample_num  & 0x00000003);\n  }\n  this._procField('reserved', 'uint', 32);\n  if (this._parsing) {\n    this.length_size_of_traf_num = (this.reserved & 0x00000030) >> 4;\n    this.length_size_of_trun_num = (this.reserved & 0x0000000C) >> 2;\n    this.length_size_of_sample_num = (this.reserved & 0x00000003);\n  }\n  this._procField('number_of_entry', 'uint', 32);\n  this._procEntries('entries', this.number_of_entry, function(entry) {\n    this._procEntryField(entry, 'time', 'uint', (this.version === 1) ? 64 : 32);\n    this._procEntryField(entry, 'moof_offset', 'uint', (this.version === 1) ? 64 : 32);\n    this._procEntryField(entry, 'traf_number', 'uint', (this.length_size_of_traf_num + 1) * 8);\n    this._procEntryField(entry, 'trun_number', 'uint', (this.length_size_of_trun_num + 1) * 8);\n    this._procEntryField(entry, 'sample_number', 'uint', (this.length_size_of_sample_num + 1) * 8);\n  });\n};\n\n// ISO/IEC 14496-12:2012 - 8.3.2 Track Header Box\nISOBox.prototype._boxProcessors['tkhd'] = function() {\n  this._procFullBox();\n  this._procField('creation_time',      'uint',     (this.version == 1) ? 64 : 32);\n  this._procField('modification_time',  'uint',     (this.version == 1) ? 64 : 32);\n  this._procField('track_ID',           'uint',     32);\n  this._procField('reserved1',          'uint',     32);\n  this._procField('duration',           'uint',     (this.version == 1) ? 64 : 32);\n  this._procFieldArray('reserved2', 2,  'uint',     32);\n  this._procField('layer',              'uint',     16);\n  this._procField('alternate_group',    'uint',     16);\n  this._procField('volume',             'template', 16);\n  this._procField('reserved3',          'uint',     16);\n  this._procFieldArray('matrix', 9,     'template', 32);\n  this._procField('width',              'template', 32);\n  this._procField('height',             'template', 32);\n};\n\n// ISO/IEC 14496-12:2012 - 8.8.3 Track Extends Box\nISOBox.prototype._boxProcessors['trex'] = function() {\n  this._procFullBox();\n  this._procField('track_ID',                         'uint', 32);\n  this._procField('default_sample_description_index', 'uint', 32);\n  this._procField('default_sample_duration',          'uint', 32);\n  this._procField('default_sample_size',              'uint', 32);\n  this._procField('default_sample_flags',             'uint', 32);\n};\n\n// ISO/IEC 14496-12:2012 - 8.8.8 Track Run Box\n// Note: the 'trun' box has a direct relation to the 'tfhd' box for defaults.\n// These defaults are not set explicitly here, but are left to resolve for the user.\nISOBox.prototype._boxProcessors['trun'] = function() {\n  this._procFullBox();\n  this._procField('sample_count', 'uint', 32);\n  if (this.flags & 0x1) this._procField('data_offset', 'int', 32);\n  if (this.flags & 0x4) this._procField('first_sample_flags', 'uint', 32);\n  this._procEntries('samples', this.sample_count, function(sample) {\n    if (this.flags & 0x100) this._procEntryField(sample, 'sample_duration', 'uint', 32);\n    if (this.flags & 0x200) this._procEntryField(sample, 'sample_size', 'uint', 32);\n    if (this.flags & 0x400) this._procEntryField(sample, 'sample_flags', 'uint', 32);\n    if (this.flags & 0x800) this._procEntryField(sample, 'sample_composition_time_offset', (this.version === 1) ? 'int' : 'uint',  32);\n  });\n};\n\n// ISO/IEC 14496-12:2012 - 8.7.2 Data Reference Box\nISOBox.prototype._boxProcessors['url '] = ISOBox.prototype._boxProcessors['urn '] = function() {\n  this._procFullBox();\n  if (this.type === 'urn ') {\n    this._procField('name', 'string', -1);\n  }\n  this._procField('location', 'string', -1);\n};\n\n// ISO/IEC 14496-30:2014 - WebVTT Source Label Box\nISOBox.prototype._boxProcessors['vlab'] = function() {\n  this._procField('source_label', 'utf8');\n};\n\n// ISO/IEC 14496-12:2012 - 8.4.5.2 Video Media Header Box\nISOBox.prototype._boxProcessors['vmhd'] = function() {\n  this._procFullBox();\n  this._procField('graphicsmode', 'uint', 16);\n  this._procFieldArray('opcolor', 3, 'uint', 16);\n};\n\n// ISO/IEC 14496-30:2014 - WebVTT Configuration Box\nISOBox.prototype._boxProcessors['vttC'] = function() {\n  this._procField('config', 'utf8');\n};\n\n// ISO/IEC 14496-30:2014 - WebVTT Empty Sample Box\nISOBox.prototype._boxProcessors['vtte'] = function() {\n  // Nothing should happen here.\n};\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _EventBus=require('../../core/EventBus');var _EventBus2=_interopRequireDefault(_EventBus);var _Events=require('../../core/events/Events');var _Events2=_interopRequireDefault(_Events);var _FactoryMaker=require('../../core/FactoryMaker');var _FactoryMaker2=_interopRequireDefault(_FactoryMaker);function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}function ManifestModel(){var context=this.context;var eventBus=(0,_EventBus2.default)(context).getInstance();var instance=void 0,manifest=void 0;function getValue(){return manifest;}function setValue(value){manifest=value;if(value){eventBus.trigger(_Events2.default.MANIFEST_LOADED,{data:value});}}instance={getValue:getValue,setValue:setValue};return instance;}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n */ManifestModel.__dashjs_factory_name='ManifestModel';exports.default=_FactoryMaker2.default.getSingletonFactory(ManifestModel);\n//# sourceMappingURL=ManifestModel.js.map\n","module.exports = {};\n","if (typeof Object.create === 'function') {\n  // implementation from standard node.js 'util' module\n  module.exports = function inherits(ctor, superCtor) {\n    if (superCtor) {\n      ctor.super_ = superCtor\n      ctor.prototype = Object.create(superCtor.prototype, {\n        constructor: {\n          value: ctor,\n          enumerable: false,\n          writable: true,\n          configurable: true\n        }\n      })\n    }\n  };\n} else {\n  // old school shim for old browsers\n  module.exports = function inherits(ctor, superCtor) {\n    if (superCtor) {\n      ctor.super_ = superCtor\n      var TempCtor = function () {}\n      TempCtor.prototype = superCtor.prototype\n      ctor.prototype = new TempCtor()\n      ctor.prototype.constructor = ctor\n    }\n  }\n}\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _Constants=require('./constants/Constants');var _Constants2=_interopRequireDefault(_Constants);var _DashConstants=require('../dash/constants/DashConstants');var _DashConstants2=_interopRequireDefault(_DashConstants);var _XlinkController=require('./controllers/XlinkController');var _XlinkController2=_interopRequireDefault(_XlinkController);var _URLLoader=require('./net/URLLoader');var _URLLoader2=_interopRequireDefault(_URLLoader);var _URLUtils=require('./utils/URLUtils');var _URLUtils2=_interopRequireDefault(_URLUtils);var _TextRequest=require('./vo/TextRequest');var _TextRequest2=_interopRequireDefault(_TextRequest);var _DashJSError=require('./vo/DashJSError');var _DashJSError2=_interopRequireDefault(_DashJSError);var _HTTPRequest=require('./vo/metrics/HTTPRequest');var _EventBus=require('../core/EventBus');var _EventBus2=_interopRequireDefault(_EventBus);var _Events=require('../core/events/Events');var _Events2=_interopRequireDefault(_Events);var _Errors=require('../core/errors/Errors');var _Errors2=_interopRequireDefault(_Errors);var _FactoryMaker=require('../core/FactoryMaker');var _FactoryMaker2=_interopRequireDefault(_FactoryMaker);var _DashParser=require('../dash/parser/DashParser');var _DashParser2=_interopRequireDefault(_DashParser);var _Debug=require('../core/Debug');var _Debug2=_interopRequireDefault(_Debug);function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n */function ManifestLoader(config){config=config||{};var context=this.context;var eventBus=(0,_EventBus2.default)(context).getInstance();var urlUtils=(0,_URLUtils2.default)(context).getInstance();var instance=void 0,logger=void 0,urlLoader=void 0,xlinkController=void 0,parser=void 0;var mssHandler=config.mssHandler;var errHandler=config.errHandler;function setup(){logger=(0,_Debug2.default)(context).getInstance().getLogger(instance);eventBus.on(_Events2.default.XLINK_READY,onXlinkReady,instance);urlLoader=(0,_URLLoader2.default)(context).create({errHandler:config.errHandler,dashMetrics:config.dashMetrics,mediaPlayerModel:config.mediaPlayerModel,requestModifier:config.requestModifier,useFetch:config.settings.get().streaming.lowLatencyEnabled,urlUtils:urlUtils,constants:_Constants2.default,dashConstants:_DashConstants2.default,errors:_Errors2.default});xlinkController=(0,_XlinkController2.default)(context).create({errHandler:errHandler,dashMetrics:config.dashMetrics,mediaPlayerModel:config.mediaPlayerModel,requestModifier:config.requestModifier,settings:config.settings});parser=null;}function onXlinkReady(event){eventBus.trigger(_Events2.default.INTERNAL_MANIFEST_LOADED,{manifest:event.manifest});}function createParser(data){var parser=null;// Analyze manifest content to detect protocol and select appropriate parser\nif(data.indexOf('SmoothStreamingMedia')>-1){//do some business to transform it into a Dash Manifest\nif(mssHandler){parser=mssHandler.createMssParser();mssHandler.registerEvents();}return parser;}else if(data.indexOf('MPD')>-1){return(0,_DashParser2.default)(context).create();}else{return parser;}}function load(url){var request=new _TextRequest2.default(url,_HTTPRequest.HTTPRequest.MPD_TYPE);urlLoader.load({request:request,success:function success(data,textStatus,responseURL){// Manage situations in which success is called after calling reset\nif(!xlinkController)return;var actualUrl=void 0,baseUri=void 0,manifest=void 0;// Handle redirects for the MPD - as per RFC3986 Section 5.1.3\n// also handily resolves relative MPD URLs to absolute\nif(responseURL&&responseURL!==url){baseUri=urlUtils.parseBaseUrl(responseURL);actualUrl=responseURL;}else{// usually this case will be caught and resolved by\n// responseURL above but it is not available for IE11 and Edge/12 and Edge/13\n// baseUri must be absolute for BaseURL resolution later\nif(urlUtils.isRelative(url)){url=urlUtils.resolve(url,window.location.href);}baseUri=urlUtils.parseBaseUrl(url);}// Create parser according to manifest type\nif(parser===null){parser=createParser(data);}if(parser===null){eventBus.trigger(_Events2.default.INTERNAL_MANIFEST_LOADED,{manifest:null,error:new _DashJSError2.default(_Errors2.default.MANIFEST_LOADER_PARSING_FAILURE_ERROR_CODE,_Errors2.default.MANIFEST_LOADER_PARSING_FAILURE_ERROR_MESSAGE+(''+url))});return;}// init xlinkcontroller with matchers and iron object from created parser\nxlinkController.setMatchers(parser.getMatchers());xlinkController.setIron(parser.getIron());try{manifest=parser.parse(data);}catch(e){eventBus.trigger(_Events2.default.INTERNAL_MANIFEST_LOADED,{manifest:null,error:new _DashJSError2.default(_Errors2.default.MANIFEST_LOADER_PARSING_FAILURE_ERROR_CODE,_Errors2.default.MANIFEST_LOADER_PARSING_FAILURE_ERROR_MESSAGE+(''+url))});return;}if(manifest){manifest.url=actualUrl||url;// URL from which the MPD was originally retrieved (MPD updates will not change this value)\nif(!manifest.originalUrl){manifest.originalUrl=manifest.url;}// In the following, we only use the first Location entry even if many are available\n// Compare with ManifestUpdater/DashManifestModel\nif(manifest.hasOwnProperty(_Constants2.default.LOCATION)){baseUri=urlUtils.parseBaseUrl(manifest.Location_asArray[0]);logger.debug('BaseURI set by Location to: '+baseUri);}manifest.baseUri=baseUri;manifest.loadedTime=new Date();xlinkController.resolveManifestOnLoad(manifest);eventBus.trigger(_Events2.default.ORIGINAL_MANIFEST_LOADED,{originalManifest:data});}else{eventBus.trigger(_Events2.default.INTERNAL_MANIFEST_LOADED,{manifest:null,error:new _DashJSError2.default(_Errors2.default.MANIFEST_LOADER_PARSING_FAILURE_ERROR_CODE,_Errors2.default.MANIFEST_LOADER_PARSING_FAILURE_ERROR_MESSAGE+(''+url))});}},error:function error(request,statusText,errorText){eventBus.trigger(_Events2.default.INTERNAL_MANIFEST_LOADED,{manifest:null,error:new _DashJSError2.default(_Errors2.default.MANIFEST_LOADER_LOADING_FAILURE_ERROR_CODE,_Errors2.default.MANIFEST_LOADER_LOADING_FAILURE_ERROR_MESSAGE+(url+', '+errorText))});}});}function reset(){eventBus.off(_Events2.default.XLINK_READY,onXlinkReady,instance);if(xlinkController){xlinkController.reset();xlinkController=null;}if(urlLoader){urlLoader.abort();urlLoader=null;}if(mssHandler){mssHandler.reset();}}instance={load:load,reset:reset};setup();return instance;}ManifestLoader.__dashjs_factory_name='ManifestLoader';var factory=_FactoryMaker2.default.getClassFactory(ManifestLoader);exports.default=factory;\n//# sourceMappingURL=ManifestLoader.js.map\n","'use strict';\nvar $ = require('../internals/export');\nvar forEach = require('../internals/array-for-each');\n\n// `Array.prototype.forEach` method\n// https://tc39.github.io/ecma262/#sec-array.prototype.foreach\n$({ target: 'Array', proto: true, forced: [].forEach != forEach }, {\n  forEach: forEach\n});\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _EventBus=require('../../core/EventBus');var _EventBus2=_interopRequireDefault(_EventBus);var _Events=require('../../core/events/Events');var _Events2=_interopRequireDefault(_Events);var _FactoryMaker=require('../../core/FactoryMaker');var _FactoryMaker2=_interopRequireDefault(_FactoryMaker);function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}/**\n * @module ErrorHandler\n * @ignore\n */function ErrorHandler(){var instance=void 0;var context=this.context;var eventBus=(0,_EventBus2.default)(context).getInstance();/**\n     * @param {object} err DashJSError with code, message and data attributes\n     * @memberof module:ErrorHandler\n     */function error(err){eventBus.trigger(_Events2.default.ERROR,{error:err});}instance={error:error};return instance;}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n */ErrorHandler.__dashjs_factory_name='ErrorHandler';exports.default=_FactoryMaker2.default.getSingletonFactory(ErrorHandler);\n//# sourceMappingURL=ErrorHandler.js.map\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _createClass=function(){function defineProperties(target,props){for(var i=0;i<props.length;i++){var descriptor=props[i];descriptor.enumerable=descriptor.enumerable||false;descriptor.configurable=true;if(\"value\"in descriptor)descriptor.writable=true;Object.defineProperty(target,descriptor.key,descriptor);}}return function(Constructor,protoProps,staticProps){if(protoProps)defineProperties(Constructor.prototype,protoProps);if(staticProps)defineProperties(Constructor,staticProps);return Constructor;};}();/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n */var _HTTPRequest=require('../vo/metrics/HTTPRequest');function _classCallCheck(instance,Constructor){if(!(instance instanceof Constructor)){throw new TypeError(\"Cannot call a class as a function\");}}/**\n * @class\n * @ignore\n */var FragmentRequest=function(){function FragmentRequest(url){_classCallCheck(this,FragmentRequest);this.action=FragmentRequest.ACTION_DOWNLOAD;this.startTime=NaN;this.mediaType=null;this.mediaInfo=null;this.type=null;this.duration=NaN;this.timescale=NaN;this.range=null;this.url=url||null;this.serviceLocation=null;this.requestStartDate=null;this.firstByteDate=null;this.requestEndDate=null;this.quality=NaN;this.index=NaN;this.availabilityStartTime=null;this.availabilityEndTime=null;this.wallStartTime=null;this.bytesLoaded=NaN;this.bytesTotal=NaN;this.delayLoadingTime=NaN;this.responseType='arraybuffer';this.representationId=null;}_createClass(FragmentRequest,[{key:'isInitializationRequest',value:function isInitializationRequest(){return this.type&&this.type===_HTTPRequest.HTTPRequest.INIT_SEGMENT_TYPE;}},{key:'setInfo',value:function setInfo(info){this.type=info&&info.init?_HTTPRequest.HTTPRequest.INIT_SEGMENT_TYPE:_HTTPRequest.HTTPRequest.MEDIA_SEGMENT_TYPE;this.url=info&&info.url?info.url:null;this.range=info&&info.range?info.range.start+'-'+info.range.end:null;this.mediaType=info&&info.mediaType?info.mediaType:null;}}]);return FragmentRequest;}();FragmentRequest.ACTION_DOWNLOAD='download';FragmentRequest.ACTION_COMPLETE='complete';exports.default=FragmentRequest;\n//# sourceMappingURL=FragmentRequest.js.map\n","var global = require('../internals/global');\n\nmodule.exports = global;\n","module.exports = require('events').EventEmitter;\n","exports.nextTick = function nextTick(fn) {\n    var args = Array.prototype.slice.call(arguments);\n    args.shift();\n    setTimeout(function () {\n        fn.apply(null, args);\n    }, 0);\n};\n\nexports.platform = exports.arch = \nexports.execPath = exports.title = 'browser';\nexports.pid = 1;\nexports.browser = true;\nexports.env = {};\nexports.argv = [];\n\nexports.binding = function (name) {\n\tthrow new Error('No such module. (Possibly not yet loaded)')\n};\n\n(function () {\n    var cwd = '/';\n    var path;\n    exports.cwd = function () { return cwd };\n    exports.chdir = function (dir) {\n        if (!path) path = require('path');\n        cwd = path.resolve(dir, cwd);\n    };\n})();\n\nexports.exit = exports.kill = \nexports.umask = exports.dlopen = \nexports.uptime = exports.memoryUsage = \nexports.uvCounters = function() {};\nexports.features = {};\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _cea608Parser=require('../../externals/cea608-parser');var _cea608Parser2=_interopRequireDefault(_cea608Parser);var _Constants=require('./constants/Constants');var _Constants2=_interopRequireDefault(_Constants);var _DashConstants=require('../dash/constants/DashConstants');var _DashConstants2=_interopRequireDefault(_DashConstants);var _MetricsConstants=require('./constants/MetricsConstants');var _MetricsConstants2=_interopRequireDefault(_MetricsConstants);var _PlaybackController=require('./controllers/PlaybackController');var _PlaybackController2=_interopRequireDefault(_PlaybackController);var _StreamController=require('./controllers/StreamController');var _StreamController2=_interopRequireDefault(_StreamController);var _MediaController=require('./controllers/MediaController');var _MediaController2=_interopRequireDefault(_MediaController);var _BaseURLController=require('./controllers/BaseURLController');var _BaseURLController2=_interopRequireDefault(_BaseURLController);var _ManifestLoader=require('./ManifestLoader');var _ManifestLoader2=_interopRequireDefault(_ManifestLoader);var _ErrorHandler=require('./utils/ErrorHandler');var _ErrorHandler2=_interopRequireDefault(_ErrorHandler);var _Capabilities=require('./utils/Capabilities');var _Capabilities2=_interopRequireDefault(_Capabilities);var _TextTracks=require('./text/TextTracks');var _TextTracks2=_interopRequireDefault(_TextTracks);var _RequestModifier=require('./utils/RequestModifier');var _RequestModifier2=_interopRequireDefault(_RequestModifier);var _TextController=require('./text/TextController');var _TextController2=_interopRequireDefault(_TextController);var _URIFragmentModel=require('./models/URIFragmentModel');var _URIFragmentModel2=_interopRequireDefault(_URIFragmentModel);var _ManifestModel=require('./models/ManifestModel');var _ManifestModel2=_interopRequireDefault(_ManifestModel);var _MediaPlayerModel=require('./models/MediaPlayerModel');var _MediaPlayerModel2=_interopRequireDefault(_MediaPlayerModel);var _AbrController=require('./controllers/AbrController');var _AbrController2=_interopRequireDefault(_AbrController);var _SchemeLoaderFactory=require('./net/SchemeLoaderFactory');var _SchemeLoaderFactory2=_interopRequireDefault(_SchemeLoaderFactory);var _VideoModel=require('./models/VideoModel');var _VideoModel2=_interopRequireDefault(_VideoModel);var _CmcdModel=require('./models/CmcdModel');var _CmcdModel2=_interopRequireDefault(_CmcdModel);var _DOMStorage=require('./utils/DOMStorage');var _DOMStorage2=_interopRequireDefault(_DOMStorage);var _Debug=require('./../core/Debug');var _Debug2=_interopRequireDefault(_Debug);var _Errors=require('./../core/errors/Errors');var _Errors2=_interopRequireDefault(_Errors);var _EventBus=require('./../core/EventBus');var _EventBus2=_interopRequireDefault(_EventBus);var _Events=require('./../core/events/Events');var _Events2=_interopRequireDefault(_Events);var _MediaPlayerEvents=require('./MediaPlayerEvents');var _MediaPlayerEvents2=_interopRequireDefault(_MediaPlayerEvents);var _FactoryMaker=require('../core/FactoryMaker');var _FactoryMaker2=_interopRequireDefault(_FactoryMaker);var _Settings=require('../core/Settings');var _Settings2=_interopRequireDefault(_Settings);var _Version=require('./../core/Version');var _SegmentBaseController=require('../dash/controllers/SegmentBaseController');var _SegmentBaseController2=_interopRequireDefault(_SegmentBaseController);var _DashAdapter=require('../dash/DashAdapter');var _DashAdapter2=_interopRequireDefault(_DashAdapter);var _DashMetrics=require('../dash/DashMetrics');var _DashMetrics2=_interopRequireDefault(_DashMetrics);var _TimelineConverter=require('../dash/utils/TimelineConverter');var _TimelineConverter2=_interopRequireDefault(_TimelineConverter);var _HTTPRequest=require('./vo/metrics/HTTPRequest');var _base=require('../../externals/base64');var _base2=_interopRequireDefault(_base);var _codemIsoboxer=require('codem-isoboxer');var _codemIsoboxer2=_interopRequireDefault(_codemIsoboxer);var _DashJSError=require('./vo/DashJSError');var _DashJSError2=_interopRequireDefault(_DashJSError);var _SupervisorTools=require('./utils/SupervisorTools');var _ManifestUpdater=require('./ManifestUpdater');var _ManifestUpdater2=_interopRequireDefault(_ManifestUpdater);var _URLUtils=require('../streaming/utils/URLUtils');var _URLUtils2=_interopRequireDefault(_URLUtils);var _DashHandler=require('../dash/DashHandler');var _DashHandler2=_interopRequireDefault(_DashHandler);var _RepresentationController=require('../dash/controllers/RepresentationController');var _RepresentationController2=_interopRequireDefault(_RepresentationController);var _FragmentModel=require('./models/FragmentModel');var _FragmentModel2=_interopRequireDefault(_FragmentModel);var _FragmentLoader=require('./FragmentLoader');var _FragmentLoader2=_interopRequireDefault(_FragmentLoader);var _BoxParser=require('./utils/BoxParser');var _BoxParser2=_interopRequireDefault(_BoxParser);function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}/* jscs:disable *//**\n * The media types\n * @typedef {(\"video\" | \"audio\" | \"text\" | \"fragmentedText\" | \"embeddedText\" | \"image\")} MediaType\n *//* jscs:enable *//**\n * @module MediaPlayer\n * @description The MediaPlayer is the primary dash.js Module and a Facade to build your player around.\n * It will allow you access to all the important dash.js properties/methods via the public API and all the\n * events to build a robust DASH media player.\n *///Dash\n/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n */function MediaPlayer(){/**\n    * @constant {string} STREAMING_NOT_INITIALIZED_ERROR error string thrown when a function is called before the dash.js has been fully initialized\n    * @inner\n    */var STREAMING_NOT_INITIALIZED_ERROR='You must first call initialize() and set a source before calling this method';/**\n    * @constant {string} PLAYBACK_NOT_INITIALIZED_ERROR error string thrown when a function is called before the dash.js has been fully initialized\n    * @inner\n    */var PLAYBACK_NOT_INITIALIZED_ERROR='You must first call initialize() and set a valid source and view before calling this method';/**\n    * @constant {string} ELEMENT_NOT_ATTACHED_ERROR error string thrown when a function is called before the dash.js has received a reference of an HTML5 video element\n    * @inner\n    */var ELEMENT_NOT_ATTACHED_ERROR='You must first call attachView() to set the video element before calling this method';/**\n    * @constant {string} SOURCE_NOT_ATTACHED_ERROR error string thrown when a function is called before the dash.js has received a valid source stream.\n    * @inner\n    */var SOURCE_NOT_ATTACHED_ERROR='You must first call attachSource() with a valid source before calling this method';/**\n    * @constant {string} MEDIA_PLAYER_NOT_INITIALIZED_ERROR error string thrown when a function is called before the dash.js has been fully initialized.\n    * @inner\n    */var MEDIA_PLAYER_NOT_INITIALIZED_ERROR='MediaPlayer not initialized!';var context=this.context;var eventBus=(0,_EventBus2.default)(context).getInstance();var settings=(0,_Settings2.default)(context).getInstance();var debug=(0,_Debug2.default)(context).getInstance({settings:settings});var instance=void 0,logger=void 0,source=void 0,protectionData=void 0,mediaPlayerInitialized=void 0,offlineControllerInitialized=void 0,streamingInitialized=void 0,playbackInitialized=void 0,autoPlay=void 0,abrController=void 0,schemeLoaderFactory=void 0,offlineController=void 0,timelineConverter=void 0,mediaController=void 0,protectionController=void 0,metricsReportingController=void 0,mssHandler=void 0,adapter=void 0,mediaPlayerModel=void 0,errHandler=void 0,baseURLController=void 0,capabilities=void 0,streamController=void 0,playbackController=void 0,dashMetrics=void 0,manifestModel=void 0,cmcdModel=void 0,videoModel=void 0,textController=void 0,uriFragmentModel=void 0,domStorage=void 0,segmentBaseController=void 0;/*\n    ---------------------------------------------------------------------------\n\n        INIT FUNCTIONS\n\n    ---------------------------------------------------------------------------\n    */function setup(){logger=debug.getLogger(instance);mediaPlayerInitialized=false;offlineControllerInitialized=false;playbackInitialized=false;streamingInitialized=false;autoPlay=true;protectionController=null;offlineController=null;protectionData=null;adapter=null;segmentBaseController=null;_Events2.default.extend(_MediaPlayerEvents2.default);mediaPlayerModel=(0,_MediaPlayerModel2.default)(context).getInstance();videoModel=(0,_VideoModel2.default)(context).getInstance();uriFragmentModel=(0,_URIFragmentModel2.default)(context).getInstance();}/**\n     * Configure media player with customs controllers. Helpful for tests\n     *\n     * @param {object=} config controllers configuration\n     * @memberof module:MediaPlayer\n     * @instance\n     */function setConfig(config){if(!config){return;}if(config.capabilities){capabilities=config.capabilities;}if(config.streamController){streamController=config.streamController;}if(config.playbackController){playbackController=config.playbackController;}if(config.mediaPlayerModel){mediaPlayerModel=config.mediaPlayerModel;}if(config.abrController){abrController=config.abrController;}if(config.schemeLoaderFactory){schemeLoaderFactory=config.schemeLoaderFactory;}if(config.mediaController){mediaController=config.mediaController;}if(config.settings){settings=config.settings;}}/**\n     * Upon creating the MediaPlayer you must call initialize before you call anything else.\n     * There is one exception to this rule. It is crucial to call {@link module:MediaPlayer#extend extend()}\n     * with all your extensions prior to calling initialize.\n     *\n     * ALL arguments are optional and there are individual methods to set each argument later on.\n     * The args in this method are just for convenience and should only be used for a simple player setup.\n     *\n     * @param {HTML5MediaElement=} view - Optional arg to set the video element. {@link module:MediaPlayer#attachView attachView()}\n     * @param {string=} source - Optional arg to set the media source. {@link module:MediaPlayer#attachSource attachSource()}\n     * @param {boolean=} AutoPlay - Optional arg to set auto play. {@link module:MediaPlayer#setAutoPlay setAutoPlay()}\n     * @see {@link module:MediaPlayer#attachView attachView()}\n     * @see {@link module:MediaPlayer#attachSource attachSource()}\n     * @see {@link module:MediaPlayer#setAutoPlay setAutoPlay()}\n     * @memberof module:MediaPlayer\n     * @instance\n     */function initialize(view,source,AutoPlay){if(!capabilities){capabilities=(0,_Capabilities2.default)(context).getInstance();}errHandler=(0,_ErrorHandler2.default)(context).getInstance();if(!capabilities.supportsMediaSource()){errHandler.error(new _DashJSError2.default(_Errors2.default.CAPABILITY_MEDIASOURCE_ERROR_CODE,_Errors2.default.CAPABILITY_MEDIASOURCE_ERROR_MESSAGE));return;}if(mediaPlayerInitialized)return;mediaPlayerInitialized=true;// init some controllers and models\ntimelineConverter=(0,_TimelineConverter2.default)(context).getInstance();if(!abrController){abrController=(0,_AbrController2.default)(context).getInstance();abrController.setConfig({settings:settings});}if(!schemeLoaderFactory){schemeLoaderFactory=(0,_SchemeLoaderFactory2.default)(context).getInstance();}if(!playbackController){playbackController=(0,_PlaybackController2.default)(context).getInstance();}if(!mediaController){mediaController=(0,_MediaController2.default)(context).getInstance();}adapter=(0,_DashAdapter2.default)(context).getInstance();manifestModel=(0,_ManifestModel2.default)(context).getInstance();cmcdModel=(0,_CmcdModel2.default)(context).getInstance();dashMetrics=(0,_DashMetrics2.default)(context).getInstance({settings:settings});textController=(0,_TextController2.default)(context).getInstance();domStorage=(0,_DOMStorage2.default)(context).getInstance({settings:settings});adapter.setConfig({constants:_Constants2.default,cea608parser:_cea608Parser2.default,errHandler:errHandler,BASE64:_base2.default});if(!baseURLController){baseURLController=(0,_BaseURLController2.default)(context).create();}baseURLController.setConfig({adapter:adapter});segmentBaseController=(0,_SegmentBaseController2.default)(context).getInstance({dashMetrics:dashMetrics,mediaPlayerModel:mediaPlayerModel,errHandler:errHandler,baseURLController:baseURLController,events:_Events2.default,eventBus:eventBus,debug:debug,boxParser:(0,_BoxParser2.default)(context).getInstance(),requestModifier:(0,_RequestModifier2.default)(context).getInstance(),errors:_Errors2.default});segmentBaseController.initialize();restoreDefaultUTCTimingSources();setAutoPlay(AutoPlay!==undefined?AutoPlay:true);if(view){attachView(view);}if(source){attachSource(source);}if(!offlineControllerInitialized){createOfflineControllers();}logger.info('[dash.js '+getVersion()+'] '+'MediaPlayer has been initialized');}/**\n     * Sets the MPD source and the video element to null. You can also reset the MediaPlayer by\n     * calling attachSource with a new source file.\n     *\n     * Calling this method is all that is necessary to destroy a MediaPlayer instance.\n     *\n     * @memberof module:MediaPlayer\n     * @instance\n     */function reset(){attachSource(null);attachView(null);protectionData=null;if(protectionController){protectionController.reset();protectionController=null;}if(metricsReportingController){metricsReportingController.reset();metricsReportingController=null;}segmentBaseController.reset();settings.reset();if(offlineController){offlineController.reset();offlineControllerInitialized=false;eventBus.off(dashjs.OfflineController.events.DASH_ELEMENTS_CREATION_NEEDED,onDashElementsNeeded,instance);/* jshint ignore:line */}}/**\n     * The ready state of the MediaPlayer based on both the video element and MPD source being defined.\n     *\n     * @returns {boolean} The current ready state of the MediaPlayer\n     * @see {@link module:MediaPlayer#attachView attachView()}\n     * @see {@link module:MediaPlayer#attachSource attachSource()}\n     * @memberof module:MediaPlayer\n     * @instance\n     */function isReady(){return!!source&&!!videoModel.getElement();}/**\n     * Use the on method to listen for public events found in MediaPlayer.events. {@link MediaPlayerEvents}\n     *\n     * @param {string} type - {@link MediaPlayerEvents}\n     * @param {Function} listener - callback method when the event fires.\n     * @param {Object} scope - context of the listener so it can be removed properly.\n     * @memberof module:MediaPlayer\n     * @instance\n     */function on(type,listener,scope){eventBus.on(type,listener,scope);}/**\n     * Use the off method to remove listeners for public events found in MediaPlayer.events. {@link MediaPlayerEvents}\n     *\n     * @param {string} type - {@link MediaPlayerEvents}\n     * @param {Function} listener - callback method when the event fires.\n     * @param {Object} scope - context of the listener so it can be removed properly.\n     * @memberof module:MediaPlayer\n     * @instance\n     */function off(type,listener,scope){eventBus.off(type,listener,scope);}/**\n     * Current version of Dash.js\n     * @returns {string} the current dash.js version string.\n     * @memberof module:MediaPlayer\n     * @instance\n     */function getVersion(){return(0,_Version.getVersionString)();}/**\n     * Use this method to access the dash.js logging class.\n     *\n     * @returns {Debug}\n     * @memberof module:MediaPlayer\n     * @instance\n     */function getDebug(){return debug;}/*\n    ---------------------------------------------------------------------------\n\n        PLAYBACK FUNCTIONS\n\n    ---------------------------------------------------------------------------\n    *//**\n     * Causes the player to begin streaming the media as set by the {@link module:MediaPlayer#attachSource attachSource()}\n     * method in preparation for playing. It specifically does not require a view to be attached with {@link module:MediaPlayer#attachSource attachView()} to begin preloading.\n     * When a view is attached after preloading, the buffered data is transferred to the attached mediaSource buffers.\n     *\n     * @see {@link module:MediaPlayer#attachSource attachSource()}\n     * @see {@link module:MediaPlayer#attachView attachView()}\n     * @memberof module:MediaPlayer\n     * @throws {@link module:MediaPlayer~SOURCE_NOT_ATTACHED_ERROR SOURCE_NOT_ATTACHED_ERROR} if called before attachSource function\n     * @instance\n     */function preload(){if(videoModel.getElement()||streamingInitialized){return false;}if(source){initializePlayback();}else{throw SOURCE_NOT_ATTACHED_ERROR;}}/**\n     * The play method initiates playback of the media defined by the {@link module:MediaPlayer#attachSource attachSource()} method.\n     * This method will call play on the native Video Element.\n     *\n     * @see {@link module:MediaPlayer#attachSource attachSource()}\n     * @throws {@link module:MediaPlayer~PLAYBACK_NOT_INITIALIZED_ERROR PLAYBACK_NOT_INITIALIZED_ERROR} if called before initializePlayback function\n     * @memberof module:MediaPlayer\n     * @instance\n     */function play(){if(!playbackInitialized){throw PLAYBACK_NOT_INITIALIZED_ERROR;}if(!autoPlay||isPaused()&&playbackInitialized){playbackController.play();}}/**\n     * This method will call pause on the native Video Element.\n     *\n     * @throws {@link module:MediaPlayer~PLAYBACK_NOT_INITIALIZED_ERROR PLAYBACK_NOT_INITIALIZED_ERROR} if called before initializePlayback function\n     * @memberof module:MediaPlayer\n     * @instance\n     */function pause(){if(!playbackInitialized){throw PLAYBACK_NOT_INITIALIZED_ERROR;}playbackController.pause();}/**\n     * Returns a Boolean that indicates whether the Video Element is paused.\n     * @return {boolean}\n     * @throws {@link module:MediaPlayer~PLAYBACK_NOT_INITIALIZED_ERROR PLAYBACK_NOT_INITIALIZED_ERROR} if called before initializePlayback function\n     * @memberof module:MediaPlayer\n     * @instance\n     */function isPaused(){if(!playbackInitialized){throw PLAYBACK_NOT_INITIALIZED_ERROR;}return playbackController.isPaused();}/**\n     * Sets the currentTime property of the attached video element.  If it is a live stream with a\n     * timeShiftBufferLength, then the DVR window offset will be automatically calculated.\n     *\n     * @param {number} value - A relative time, in seconds, based on the return value of the {@link module:MediaPlayer#duration duration()} method is expected\n     * @see {@link module:MediaPlayer#getDVRSeekOffset getDVRSeekOffset()}\n     * @throws {@link module:MediaPlayer~PLAYBACK_NOT_INITIALIZED_ERROR PLAYBACK_NOT_INITIALIZED_ERROR} if called before initializePlayback function\n     * @throws {@link Constants#BAD_ARGUMENT_ERROR BAD_ARGUMENT_ERROR} if called with an invalid argument, not number type or is NaN.\n     * @memberof module:MediaPlayer\n     * @instance\n     */function seek(value){if(!playbackInitialized){throw PLAYBACK_NOT_INITIALIZED_ERROR;}(0,_SupervisorTools.checkParameterType)(value,'number');if(isNaN(value)){throw _Constants2.default.BAD_ARGUMENT_ERROR;}var s=playbackController.getIsDynamic()?getDVRSeekOffset(value):value;playbackController.seek(s);}/**\n     * Returns a Boolean that indicates whether the media is in the process of seeking to a new position.\n     * @return {boolean}\n     * @throws {@link module:MediaPlayer~PLAYBACK_NOT_INITIALIZED_ERROR PLAYBACK_NOT_INITIALIZED_ERROR} if called before initializePlayback function\n     * @memberof module:MediaPlayer\n     * @instance\n     */function isSeeking(){if(!playbackInitialized){throw PLAYBACK_NOT_INITIALIZED_ERROR;}return playbackController.isSeeking();}/**\n     * Returns a Boolean that indicates whether the media is in the process of dynamic.\n     * @return {boolean}\n     * @throws {@link module:MediaPlayer~PLAYBACK_NOT_INITIALIZED_ERROR PLAYBACK_NOT_INITIALIZED_ERROR} if called before initializePlayback function\n     * @memberof module:MediaPlayer\n     * @instance\n     */function isDynamic(){if(!playbackInitialized){throw PLAYBACK_NOT_INITIALIZED_ERROR;}return playbackController.getIsDynamic();}/**\n     * Use this method to set the native Video Element's playback rate.\n     * @param {number} value\n     * @memberof module:MediaPlayer\n     * @instance\n     */function setPlaybackRate(value){getVideoElement().playbackRate=value;}/**\n     * Returns the current playback rate.\n     * @returns {number}\n     * @memberof module:MediaPlayer\n     * @instance\n     */function getPlaybackRate(){return getVideoElement().playbackRate;}/**\n     * Use this method to set the native Video Element's muted state. Takes a Boolean that determines whether audio is muted. true if the audio is muted and false otherwise.\n     * @param {boolean} value\n     * @memberof module:MediaPlayer\n     * @throws {@link Constants#BAD_ARGUMENT_ERROR BAD_ARGUMENT_ERROR} if called with an invalid argument, not boolean type.\n     * @instance\n     */function setMute(value){(0,_SupervisorTools.checkParameterType)(value,'boolean');getVideoElement().muted=value;}/**\n     * A Boolean that determines whether audio is muted.\n     * @returns {boolean}\n     * @memberof module:MediaPlayer\n     * @instance\n     */function isMuted(){return getVideoElement().muted;}/**\n     * A double indicating the audio volume, from 0.0 (silent) to 1.0 (loudest).\n     * @param {number} value\n     * @memberof module:MediaPlayer\n     * @throws {@link Constants#BAD_ARGUMENT_ERROR BAD_ARGUMENT_ERROR} if called with an invalid argument, not number type, or is NaN or not between 0 and 1.\n     * @instance\n     */function setVolume(value){if(typeof value!=='number'||isNaN(value)||value<0.0||value>1.0){throw _Constants2.default.BAD_ARGUMENT_ERROR;}getVideoElement().volume=value;}/**\n     * Returns the current audio volume, from 0.0 (silent) to 1.0 (loudest).\n     * @returns {number}\n     * @memberof module:MediaPlayer\n     * @instance\n     */function getVolume(){return getVideoElement().volume;}/**\n     * The length of the buffer for a given media type, in seconds. Valid media\n     * types are \"video\", \"audio\" and \"fragmentedText\". If no type is passed\n     * in, then the minimum of video, audio and fragmentedText buffer length is\n     * returned. NaN is returned if an invalid type is requested, the\n     * presentation does not contain that type, or if no arguments are passed\n     * and the presentation does not include any adaption sets of valid media\n     * type.\n     *\n     * @param {MediaType} type - 'video', 'audio' or 'fragmentedText'\n     * @returns {number} The length of the buffer for the given media type, in\n     *  seconds, or NaN\n     * @memberof module:MediaPlayer\n     * @instance\n     */function getBufferLength(type){var types=[_Constants2.default.VIDEO,_Constants2.default.AUDIO,_Constants2.default.FRAGMENTED_TEXT];if(!type){var buffer=types.map(function(t){return getTracksFor(t).length>0?getDashMetrics().getCurrentBufferLevel(t):Number.MAX_VALUE;}).reduce(function(p,c){return Math.min(p,c);});return buffer===Number.MAX_VALUE?NaN:buffer;}else{if(types.indexOf(type)!==-1){var _buffer=getDashMetrics().getCurrentBufferLevel(type);return _buffer?_buffer:NaN;}else{logger.warn('getBufferLength requested for invalid type');return NaN;}}}/**\n     * The timeShiftBufferLength (DVR Window), in seconds.\n     *\n     * @returns {number} The window of allowable play time behind the live point of a live stream.\n     * @memberof module:MediaPlayer\n     * @instance\n     */function getDVRWindowSize(){var metric=dashMetrics.getCurrentDVRInfo();if(!metric){return 0;}return metric.manifestInfo.DVRWindowSize;}/**\n     * This method should only be used with a live stream that has a valid timeShiftBufferLength (DVR Window).\n     * NOTE - If you do not need the raw offset value (i.e. media analytics, tracking, etc) consider using the {@link module:MediaPlayer#seek seek()} method\n     * which will calculate this value for you and set the video element's currentTime property all in one simple call.\n     *\n     * @param {number} value - A relative time, in seconds, based on the return value of the {@link module:MediaPlayer#duration duration()} method is expected.\n     * @returns {number} A value that is relative the available range within the timeShiftBufferLength (DVR Window).\n     * @see {@link module:MediaPlayer#seek seek()}\n     * @memberof module:MediaPlayer\n     * @instance\n     */function getDVRSeekOffset(value){var metric=dashMetrics.getCurrentDVRInfo();if(!metric){return 0;}var liveDelay=playbackController.getLiveDelay();var val=metric.range.start+value;if(val>metric.range.end-liveDelay){val=metric.range.end-liveDelay;}return val;}/**\n     * Current time of the playhead, in seconds.\n     *\n     * If called with no arguments then the returned time value is time elapsed since the start point of the first stream, or if it is a live stream, then the time will be based on the return value of the {@link module:MediaPlayer#duration duration()} method.\n     * However if a stream ID is supplied then time is relative to the start of that stream, or is null if there is no such stream id in the manifest.\n     *\n     * @param {string} streamId - The ID of a stream that the returned playhead time must be relative to the start of. If undefined, then playhead time is relative to the first stream.\n     * @returns {number} The current playhead time of the media, or null.\n     * @throws {@link module:MediaPlayer~PLAYBACK_NOT_INITIALIZED_ERROR PLAYBACK_NOT_INITIALIZED_ERROR} if called before initializePlayback function\n     * @memberof module:MediaPlayer\n     * @instance\n     */function time(streamId){if(!playbackInitialized){throw PLAYBACK_NOT_INITIALIZED_ERROR;}var t=getVideoElement().currentTime;if(streamId!==undefined){t=streamController.getTimeRelativeToStreamId(t,streamId);}else if(playbackController.getIsDynamic()){var metric=dashMetrics.getCurrentDVRInfo();t=metric===null?0:duration()-(metric.range.end-metric.time);}return t;}/**\n     * Duration of the media's playback, in seconds.\n     *\n     * @returns {number} The current duration of the media.\n     * @memberof module:MediaPlayer\n     * @throws {@link module:MediaPlayer~PLAYBACK_NOT_INITIALIZED_ERROR PLAYBACK_NOT_INITIALIZED_ERROR} if called before initializePlayback function\n     * @instance\n     */function duration(){if(!playbackInitialized){throw PLAYBACK_NOT_INITIALIZED_ERROR;}var d=getVideoElement().duration;if(playbackController.getIsDynamic()){var metric=dashMetrics.getCurrentDVRInfo();var range=void 0;if(!metric){return 0;}range=metric.range.end-metric.range.start;d=range<metric.manifestInfo.DVRWindowSize?range:metric.manifestInfo.DVRWindowSize;}return d;}/**\n     * Use this method to get the current playhead time as an absolute value, the time in seconds since midnight UTC, Jan 1 1970.\n     * Note - this property only has meaning for live streams. If called before play() has begun, it will return a value of NaN.\n     *\n     * @returns {number} The current playhead time as UTC timestamp.\n     * @throws {@link module:MediaPlayer~PLAYBACK_NOT_INITIALIZED_ERROR PLAYBACK_NOT_INITIALIZED_ERROR} if called before initializePlayback function\n     * @memberof module:MediaPlayer\n     * @instance\n     */function timeAsUTC(){if(!playbackInitialized){throw PLAYBACK_NOT_INITIALIZED_ERROR;}if(time()<0){return NaN;}return getAsUTC(time());}/**\n     * Use this method to get the current duration as an absolute value, the time in seconds since midnight UTC, Jan 1 1970.\n     * Note - this property only has meaning for live streams.\n     *\n     * @returns {number} The current duration as UTC timestamp.\n     * @throws {@link module:MediaPlayer~PLAYBACK_NOT_INITIALIZED_ERROR PLAYBACK_NOT_INITIALIZED_ERROR} if called before initializePlayback function\n     * @memberof module:MediaPlayer\n     * @instance\n     */function durationAsUTC(){if(!playbackInitialized){throw PLAYBACK_NOT_INITIALIZED_ERROR;}return getAsUTC(duration());}/*\n    ---------------------------------------------------------------------------\n\n        AUTO BITRATE\n\n    ---------------------------------------------------------------------------\n    *//**\n     * Gets the top quality BitrateInfo checking portal limit and max allowed.\n     * It calls getTopQualityIndexFor internally\n     *\n     * @param {MediaType} type - 'video' or 'audio'\n     * @memberof module:MediaPlayer\n     * @returns {BitrateInfo | null}\n     * @throws {@link module:MediaPlayer~STREAMING_NOT_INITIALIZED_ERROR STREAMING_NOT_INITIALIZED_ERROR} if called before initializePlayback function\n     * @instance\n     */function getTopBitrateInfoFor(type){if(!streamingInitialized){throw STREAMING_NOT_INITIALIZED_ERROR;}return abrController.getTopBitrateInfoFor(type);}/**\n     * Gets the current download quality for media type video, audio or images. For video and audio types the ABR\n     * rules update this value before every new download unless setAutoSwitchQualityFor(type, false) is called. For 'image'\n     * type, thumbnails, there is no ABR algorithm and quality is set manually.\n     *\n     * @param {MediaType} type - 'video', 'audio' or 'image' (thumbnails)\n     * @returns {number} the quality index, 0 corresponding to the lowest bitrate\n     * @memberof module:MediaPlayer\n     * @see {@link module:MediaPlayer#setAutoSwitchQualityFor setAutoSwitchQualityFor()}\n     * @see {@link module:MediaPlayer#setQualityFor setQualityFor()}\n     * @throws {@link module:MediaPlayer~STREAMING_NOT_INITIALIZED_ERROR STREAMING_NOT_INITIALIZED_ERROR} if called before initializePlayback function\n     * @instance\n     */function getQualityFor(type){if(!streamingInitialized){throw STREAMING_NOT_INITIALIZED_ERROR;}if(type===_Constants2.default.IMAGE){var activeStream=getActiveStream();if(!activeStream){return-1;}var thumbnailController=activeStream.getThumbnailController();return!thumbnailController?-1:thumbnailController.getCurrentTrackIndex();}return abrController.getQualityFor(type);}/**\n     * Sets the current quality for media type instead of letting the ABR Heuristics automatically selecting it.\n     * This value will be overwritten by the ABR rules unless setAutoSwitchQualityFor(type, false) is called.\n     *\n     * @param {MediaType} type - 'video', 'audio' or 'image'\n     * @param {number} value - the quality index, 0 corresponding to the lowest bitrate\n     * @memberof module:MediaPlayer\n     * @see {@link module:MediaPlayer#setAutoSwitchQualityFor setAutoSwitchQualityFor()}\n     * @see {@link module:MediaPlayer#getQualityFor getQualityFor()}\n     * @throws {@link module:MediaPlayer~STREAMING_NOT_INITIALIZED_ERROR STREAMING_NOT_INITIALIZED_ERROR} if called before initializePlayback function\n     * @instance\n     */function setQualityFor(type,value){if(!streamingInitialized){throw STREAMING_NOT_INITIALIZED_ERROR;}if(type===_Constants2.default.IMAGE){var activeStream=getActiveStream();if(!activeStream){return;}var thumbnailController=activeStream.getThumbnailController();if(thumbnailController){thumbnailController.setTrackByIndex(value);}}abrController.setPlaybackQuality(type,streamController.getActiveStreamInfo(),value);}/**\n     * Update the video element size variables\n     * Should be called on window resize (or any other time player is resized). Fullscreen does trigger a window resize event.\n     *\n     * Once windowResizeEventCalled = true, abrController.checkPortalSize() will use element size variables rather than querying clientWidth every time.\n     *\n     * @memberof module:MediaPlayer\n     * @instance\n     */function updatePortalSize(){abrController.setElementSize();abrController.setWindowResizeEventCalled(true);}/*\n    ---------------------------------------------------------------------------\n\n        MEDIA PLAYER CONFIGURATION\n\n    ---------------------------------------------------------------------------\n    *//**\n     * <p>Set to false to prevent stream from auto-playing when the view is attached.</p>\n     *\n     * @param {boolean} value\n     * @default true\n     * @memberof module:MediaPlayer\n     * @see {@link module:MediaPlayer#attachView attachView()}\n     * @throws {@link Constants#BAD_ARGUMENT_ERROR BAD_ARGUMENT_ERROR} if called with an invalid argument, not boolean type.\n     * @instance\n     *\n     */function setAutoPlay(value){(0,_SupervisorTools.checkParameterType)(value,'boolean');autoPlay=value;}/**\n     * @returns {boolean} The current autoPlay state.\n     * @memberof module:MediaPlayer\n     * @instance\n     */function getAutoPlay(){return autoPlay;}/**\n     * @memberof module:MediaPlayer\n     * @instance\n     * @returns {number|NaN} Current live stream latency in seconds. It is the difference between current time and time position at the playback head.\n     * @throws {@link module:MediaPlayer~MEDIA_PLAYER_NOT_INITIALIZED_ERROR MEDIA_PLAYER_NOT_INITIALIZED_ERROR} if called before initialize function\n     */function getCurrentLiveLatency(){if(!mediaPlayerInitialized){throw MEDIA_PLAYER_NOT_INITIALIZED_ERROR;}if(!playbackInitialized){return NaN;}return playbackController.getCurrentLiveLatency();}/**\n     * Add a custom ABR Rule\n     * Rule will be apply on next stream if a stream is being played\n     *\n     * @param {string} type - rule type (one of ['qualitySwitchRules','abandonFragmentRules'])\n     * @param {string} rulename - name of rule (used to identify custom rule). If one rule of same name has been added, then existing rule will be updated\n     * @param {object} rule - the rule object instance\n     * @memberof module:MediaPlayer\n     * @throws {@link Constants#BAD_ARGUMENT_ERROR BAD_ARGUMENT_ERROR} if called with invalid arguments.\n     * @instance\n     */function addABRCustomRule(type,rulename,rule){mediaPlayerModel.addABRCustomRule(type,rulename,rule);}/**\n     * Remove a custom ABR Rule\n     *\n     * @param {string} rulename - name of the rule to be removed\n     * @memberof module:MediaPlayer\n     * @instance\n     */function removeABRCustomRule(rulename){mediaPlayerModel.removeABRCustomRule(rulename);}/**\n     * Remove all custom rules\n     * @memberof module:MediaPlayer\n     * @instance\n     */function removeAllABRCustomRule(){mediaPlayerModel.removeABRCustomRule();}/**\n     * <p>Allows you to set a scheme and server source for UTC live edge detection for dynamic streams.\n     * If UTCTiming is defined in the manifest, it will take precedence over any time source manually added.</p>\n     * <p>If you have exposed the Date header, use the method {@link module:MediaPlayer#clearDefaultUTCTimingSources clearDefaultUTCTimingSources()}.\n     * This will allow the date header on the manifest to be used instead of a time server</p>\n     * @param {string} schemeIdUri - <ul>\n     * <li>urn:mpeg:dash:utc:http-head:2014</li>\n     * <li>urn:mpeg:dash:utc:http-xsdate:2014</li>\n     * <li>urn:mpeg:dash:utc:http-iso:2014</li>\n     * <li>urn:mpeg:dash:utc:direct:2014</li>\n     * </ul>\n     * <p>Some specs referencing early ISO23009-1 drafts incorrectly use\n     * 2012 in the URI, rather than 2014. support these for now.</p>\n     * <ul>\n     * <li>urn:mpeg:dash:utc:http-head:2012</li>\n     * <li>urn:mpeg:dash:utc:http-xsdate:2012</li>\n     * <li>urn:mpeg:dash:utc:http-iso:2012</li>\n     * <li>urn:mpeg:dash:utc:direct:2012</li>\n     * </ul>\n     * @param {string} value - Path to a time source.\n     * @default\n     * <ul>\n     *     <li>schemeIdUri:urn:mpeg:dash:utc:http-xsdate:2014</li>\n     *     <li>value:http://time.akamai.com/?iso&ms/li>\n     * </ul>\n     * @memberof module:MediaPlayer\n     * @see {@link module:MediaPlayer#removeUTCTimingSource removeUTCTimingSource()}\n     * @instance\n     */function addUTCTimingSource(schemeIdUri,value){mediaPlayerModel.addUTCTimingSource(schemeIdUri,value);}/**\n     * <p>Allows you to remove a UTC time source. Both schemeIdUri and value need to match the Dash.vo.UTCTiming properties in order for the\n     * entry to be removed from the array</p>\n     * @param {string} schemeIdUri - see {@link module:MediaPlayer#addUTCTimingSource addUTCTimingSource()}\n     * @param {string} value - see {@link module:MediaPlayer#addUTCTimingSource addUTCTimingSource()}\n     * @memberof module:MediaPlayer\n     * @see {@link module:MediaPlayer#clearDefaultUTCTimingSources clearDefaultUTCTimingSources()}\n     * @throws {@link Constants#BAD_ARGUMENT_ERROR BAD_ARGUMENT_ERROR} if called with invalid arguments, schemeIdUri and value are not string type.\n     * @instance\n     */function removeUTCTimingSource(schemeIdUri,value){mediaPlayerModel.removeUTCTimingSource(schemeIdUri,value);}/**\n     * <p>Allows you to clear the stored array of time sources.</p>\n     * <p>Example use: If you have exposed the Date header, calling this method\n     * will allow the date header on the manifest to be used instead of the time server.</p>\n     * <p>Example use: Calling this method, assuming there is not an exposed date header on the manifest,  will default back\n     * to using a binary search to discover the live edge</p>\n     *\n     * @memberof module:MediaPlayer\n     * @see {@link module:MediaPlayer#restoreDefaultUTCTimingSources restoreDefaultUTCTimingSources()}\n     * @instance\n     */function clearDefaultUTCTimingSources(){mediaPlayerModel.clearDefaultUTCTimingSources();}/**\n     * <p>Allows you to restore the default time sources after calling {@link module:MediaPlayer#clearDefaultUTCTimingSources clearDefaultUTCTimingSources()}</p>\n     *\n     * @default\n     * <ul>\n     *     <li>schemeIdUri:urn:mpeg:dash:utc:http-xsdate:2014</li>\n     *     <li>value:http://time.akamai.com/?iso&ms</li>\n     * </ul>\n     *\n     * @memberof module:MediaPlayer\n     * @see {@link module:MediaPlayer#addUTCTimingSource addUTCTimingSource()}\n     * @instance\n     */function restoreDefaultUTCTimingSources(){mediaPlayerModel.restoreDefaultUTCTimingSources();}/**\n     * Returns the average throughput computed in the ABR logic\n     *\n     * @param {MediaType} type\n     * @return {number} value\n     * @memberof module:MediaPlayer\n     * @instance\n     */function getAverageThroughput(type){var throughputHistory=abrController.getThroughputHistory();return throughputHistory?throughputHistory.getAverageThroughput(type):0;}/**\n     * Sets whether withCredentials on XHR requests for a particular request\n     * type is true or false\n     *\n     * @default false\n     * @param {string} type - one of HTTPRequest.*_TYPE\n     * @param {boolean} value\n     * @memberof module:MediaPlayer\n     * @instance\n     */function setXHRWithCredentialsForType(type,value){mediaPlayerModel.setXHRWithCredentialsForType(type,value);}/**\n     * Gets whether withCredentials on XHR requests for a particular request\n     * type is true or false\n     *\n     * @param {string} type - one of HTTPRequest.*_TYPE\n     * @return {boolean}\n     * @memberof module:MediaPlayer\n     * @instance\n     */function getXHRWithCredentialsForType(type){return mediaPlayerModel.getXHRWithCredentialsForType(type);}/*\n    ---------------------------------------------------------------------------\n\n        OFFLINE\n\n    ---------------------------------------------------------------------------\n    *//** Loads downloads from storage\n     * This methos has to be called first, to be sure that all downloads have been loaded\n     * @return {Promise} asynchronously resolved\n     * @memberof module:MediaPlayer\n     */function loadDownloadsFromStorage(){if(!offlineControllerInitialized){createOfflineControllers();}return offlineController?offlineController.loadDownloadsFromStorage():Promise.reject();}/**\n     * Creates a new download object in storage\n     *\n     * @param {string} manifestURL - url of manifest\n     * @return {Promise} asynchronously resolved with identifier of download\n     * @memberof module:MediaPlayer\n     * @instance\n     */function createDownload(manifestURL){if(!offlineControllerInitialized){createOfflineControllers();}return offlineController?offlineController.createDownload(manifestURL):Promise.reject();}/**\n     * Initialise download and gets manifest from url\n     *\n     * @param {string} id - identifier of download\n     * @memberof module:MediaPlayer\n     * @instance\n     */function initDownload(id){if(offlineController){offlineController.initDownload(id);}}/**\n     * Start download of choosen representations\n     *\n     * @param {string} id - identifier of download\n     * @param {object} selectedRepresentations - choosen representations\n     * @memberof module:MediaPlayer\n     * @instance\n     */function startDownload(id,selectedRepresentations){if(selectedRepresentations&&offlineController){offlineController.startDownload(id,selectedRepresentations);}}/**\n     * Delete download\n     *\n     * @param {string} id - identifier of download\n     * @memberof module:MediaPlayer\n     * @instance\n     */function deleteDownload(id){if(!offlineControllerInitialized){createOfflineControllers();}return offlineController?offlineController.deleteDownload(id):Promise.reject();}/**\n     * Stop download\n     *\n     * @param {string} id - identifier of download\n     * @memberof module:MediaPlayer\n     * @instance\n     */function stopDownload(id){if(offlineControllerInitialized&&offlineController){offlineController.stopDownload(id);}}/**\n     * Resume download\n     *\n     * @param {string} id - identifier of download\n     * @memberof module:MediaPlayer\n     * @instance\n     */function resumeDownload(id){if(offlineControllerInitialized&&offlineController){offlineController.resumeDownload(id);}}/**\n     * Get progression of download\n     *\n     * @param {string} id - identifier of download\n     * @return {number} progression\n     * @memberof module:MediaPlayer\n     * @instance\n     */function getDownloadProgression(id){if(offlineControllerInitialized){return offlineController?offlineController.getDownloadProgression(id):0;}}/**\n     * Get all saved downloads\n     *\n     * @return {Promise} asynchronously resolved with saved downloads\n     * @memberof module:MediaPlayer\n     * @instance\n     */function getAllDownloads(){if(!offlineControllerInitialized){createOfflineControllers();}return offlineController?offlineController.getAllDownloads():Promise.reject();}function onDashElementsNeeded(eventObj){var requestModifier=(0,_RequestModifier2.default)(context).getInstance();var handler=(0,_DashHandler2.default)(context).create({type:eventObj.config.type,mediaPlayerModel:mediaPlayerModel,mimeType:eventObj.config.mimeType,baseURLController:baseURLController,streamInfo:eventObj.config.streamInfo,errHandler:errHandler,timelineConverter:timelineConverter,settings:settings,dashMetrics:dashMetrics,eventBus:eventBus,events:_Events2.default,errors:_Errors2.default,debug:debug,dashConstants:_DashConstants2.default,requestModifier:requestModifier,urlUtils:(0,_URLUtils2.default)(context).getInstance(),boxParser:(0,_BoxParser2.default)(context).getInstance()});var repController=(0,_RepresentationController2.default)(context).create({abrController:abrController,dashMetrics:dashMetrics,playbackController:playbackController,timelineConverter:timelineConverter,type:eventObj.config.type,eventBus:eventBus,events:_Events2.default,errors:_Errors2.default,dashConstants:_DashConstants2.default,streamId:eventObj.config.streamInfo?eventObj.config.streamInfo.id:null});var fragLoader=(0,_FragmentLoader2.default)(context).create({mediaPlayerModel:mediaPlayerModel,errHandler:errHandler,requestModifier:requestModifier,settings:settings,dashMetrics:dashMetrics,eventBus:eventBus,events:_Events2.default,errors:_Errors2.default,dashConstants:_DashConstants2.default,urlUtils:(0,_URLUtils2.default)(context).getInstance()});var fragModel=(0,_FragmentModel2.default)(context).create({dashMetrics:dashMetrics,fragmentLoader:fragLoader,eventBus:eventBus,events:_Events2.default,debug:debug});eventObj.sender.setDashElements(handler,fragModel,repController);}function createOfflineControllers(){if(!mediaPlayerInitialized){throw MEDIA_PLAYER_NOT_INITIALIZED_ERROR;}var OfflineController=dashjs.OfflineController;/* jshint ignore:line */if(typeof OfflineController!=='function'){//TODO need a better way to register/detect plugin components\nreturn;}offlineController=OfflineController(context).create();eventBus.on(OfflineController.events.DASH_ELEMENTS_CREATION_NEEDED,onDashElementsNeeded,instance);_MediaPlayerEvents2.default.extend(OfflineController.events,{publicOnly:true});_Errors2.default.extend(OfflineController.errors);var manifestLoader=createManifestLoader();var manifestUpdater=(0,_ManifestUpdater2.default)(context).create();manifestUpdater.setConfig({manifestModel:manifestModel,adapter:adapter,manifestLoader:manifestLoader,errHandler:errHandler});offlineController.setConfig({debug:debug,manifestUpdater:manifestUpdater,baseURLController:baseURLController,manifestLoader:manifestLoader,manifestModel:manifestModel,adapter:adapter,errHandler:errHandler,schemeLoaderFactory:schemeLoaderFactory,eventBus:eventBus,events:_Events2.default,constants:_Constants2.default,dashConstants:_DashConstants2.default,urlUtils:(0,_URLUtils2.default)(context).getInstance()});offlineControllerInitialized=true;}/*\n    ---------------------------------------------------------------------------\n\n        METRICS\n\n    ---------------------------------------------------------------------------\n    *//**\n     * Returns the DashMetrics.js Module. You use this Module to get access to all the public metrics\n     * stored in dash.js\n     *\n     * @see {@link module:DashMetrics}\n     * @returns {Object}\n     * @memberof module:MediaPlayer\n     * @instance\n     */function getDashMetrics(){return dashMetrics;}/*\n    ---------------------------------------------------------------------------\n\n        TEXT MANAGEMENT\n\n    ---------------------------------------------------------------------------\n    *//**\n     * Set default language for text. If default language is not one of text tracks, dash will choose the first one.\n     *\n     * @param {string} lang - default language\n     * @memberof module:MediaPlayer\n     * @instance\n     */function setTextDefaultLanguage(lang){if(textController===undefined){textController=(0,_TextController2.default)(context).getInstance();}textController.setTextDefaultLanguage(lang);}/**\n     * Get default language for text.\n     *\n     * @return {string} the default language if it has been set using setTextDefaultLanguage\n     * @memberof module:MediaPlayer\n     * @instance\n     */function getTextDefaultLanguage(){if(textController===undefined){textController=(0,_TextController2.default)(context).getInstance();}return textController.getTextDefaultLanguage();}/**\n     * Set enabled default state.\n     * This is used to enable/disable text when a file is loaded.\n     * During playback, use enableText to enable text for the file\n     *\n     * @param {boolean} enable - true to enable text, false otherwise\n     * @memberof module:MediaPlayer\n     * @instance\n     */function setTextDefaultEnabled(enable){if(textController===undefined){textController=(0,_TextController2.default)(context).getInstance();}textController.setTextDefaultEnabled(enable);}/**\n     * Get enabled default state.\n     *\n     * @return {boolean}  default enable state\n     * @memberof module:MediaPlayer\n     * @instance\n     */function getTextDefaultEnabled(){if(textController===undefined){textController=(0,_TextController2.default)(context).getInstance();}return textController.getTextDefaultEnabled();}/**\n     * Enable/disable text\n     * When enabling text, dash will choose the previous selected text track\n     *\n     * @param {boolean} enable - true to enable text, false otherwise (same as setTextTrack(-1))\n     * @memberof module:MediaPlayer\n     * @instance\n     */function enableText(enable){if(textController===undefined){textController=(0,_TextController2.default)(context).getInstance();}textController.enableText(enable);}/**\n     * Enable/disable text\n     * When enabling dash will keep downloading and process fragmented text tracks even if all tracks are in mode \"hidden\"\n     *\n     * @param {boolean} enable - true to enable text streaming even if all text tracks are hidden.\n     * @memberof module:MediaPlayer\n     * @instance\n     */function enableForcedTextStreaming(enable){if(textController===undefined){textController=(0,_TextController2.default)(context).getInstance();}textController.enableForcedTextStreaming(enable);}/**\n     * Return if text is enabled\n     *\n     * @return {boolean} return true if text is enabled, false otherwise\n     * @memberof module:MediaPlayer\n     * @instance\n     */function isTextEnabled(){if(textController===undefined){textController=(0,_TextController2.default)(context).getInstance();}return textController.isTextEnabled();}/**\n     * Use this method to change the current text track for both external time text files and fragmented text tracks. There is no need to\n     * set the track mode on the video object to switch a track when using this method.\n     * @param {number} idx - Index of track based on the order of the order the tracks are added Use -1 to disable all tracks. (turn captions off).  Use module:MediaPlayer#dashjs.MediaPlayer.events.TEXT_TRACK_ADDED.\n     * @see {@link MediaPlayerEvents#event:TEXT_TRACK_ADDED dashjs.MediaPlayer.events.TEXT_TRACK_ADDED}\n     * @throws {@link module:MediaPlayer~PLAYBACK_NOT_INITIALIZED_ERROR PLAYBACK_NOT_INITIALIZED_ERROR} if called before initializePlayback function\n     * @memberof module:MediaPlayer\n     * @instance\n     */function setTextTrack(idx){if(!playbackInitialized){throw PLAYBACK_NOT_INITIALIZED_ERROR;}if(textController===undefined){textController=(0,_TextController2.default)(context).getInstance();}textController.setTextTrack(idx);}function getCurrentTextTrackIndex(){var idx=NaN;if(textController){idx=textController.getCurrentTrackIdx();}return idx;}/**\n     * This method serves to control captions z-index value. If 'true' is passed, the captions will have the highest z-index and be\n     * displayed on top of other html elements. Default value is 'false' (z-index is not set).\n     * @param {boolean} value\n     * @memberof module:MediaPlayer\n     * @instance\n     */function displayCaptionsOnTop(value){var textTracks=(0,_TextTracks2.default)(context).getInstance();textTracks.setConfig({videoModel:videoModel});textTracks.initialize();textTracks.setDisplayCConTop(value);}/*\n    ---------------------------------------------------------------------------\n\n        VIDEO ELEMENT MANAGEMENT\n\n    ---------------------------------------------------------------------------\n    *//**\n     * Returns instance of Video Element that was attached by calling attachView()\n     * @returns {Object}\n     * @memberof module:MediaPlayer\n     * @throws {@link module:MediaPlayer~ELEMENT_NOT_ATTACHED_ERROR ELEMENT_NOT_ATTACHED_ERROR} if called before attachView function\n     * @instance\n     */function getVideoElement(){if(!videoModel.getElement()){throw ELEMENT_NOT_ATTACHED_ERROR;}return videoModel.getElement();}/**\n     * Use this method to attach an HTML5 VideoElement for dash.js to operate upon.\n     *\n     * @param {Object} element - An HTMLMediaElement that has already been defined in the DOM (or equivalent stub).\n     * @memberof module:MediaPlayer\n     * @throws {@link module:MediaPlayer~MEDIA_PLAYER_NOT_INITIALIZED_ERROR MEDIA_PLAYER_NOT_INITIALIZED_ERROR} if called before initialize function\n     * @instance\n     */function attachView(element){if(!mediaPlayerInitialized){throw MEDIA_PLAYER_NOT_INITIALIZED_ERROR;}videoModel.setElement(element);if(element){detectProtection();detectMetricsReporting();detectMss();if(streamController){streamController.switchToVideoElement();}}if(playbackInitialized){//Reset if we have been playing before, so this is a new element.\nresetPlaybackControllers();}initializePlayback();}/**\n     * Returns instance of Div that was attached by calling attachTTMLRenderingDiv()\n     * @returns {Object}\n     * @memberof module:MediaPlayer\n     * @instance\n     */function getTTMLRenderingDiv(){return videoModel?videoModel.getTTMLRenderingDiv():null;}/**\n     * Use this method to attach an HTML5 div for dash.js to render rich TTML subtitles.\n     *\n     * @param {HTMLDivElement} div - An unstyled div placed after the video element. It will be styled to match the video size and overlay z-order.\n     * @memberof module:MediaPlayer\n     * @throws {@link module:MediaPlayer~ELEMENT_NOT_ATTACHED_ERROR ELEMENT_NOT_ATTACHED_ERROR} if called before attachView function\n     * @instance\n     */function attachTTMLRenderingDiv(div){if(!videoModel.getElement()){throw ELEMENT_NOT_ATTACHED_ERROR;}videoModel.setTTMLRenderingDiv(div);}/*\n    ---------------------------------------------------------------------------\n\n        STREAM AND TRACK MANAGEMENT\n\n    ---------------------------------------------------------------------------\n    *//**\n     * @param {MediaType} type\n     * @returns {Array}\n     * @memberof module:MediaPlayer\n     * @throws {@link module:MediaPlayer~STREAMING_NOT_INITIALIZED_ERROR STREAMING_NOT_INITIALIZED_ERROR} if called before initializePlayback function\n     * @instance\n     */function getBitrateInfoListFor(type){if(!streamingInitialized){throw STREAMING_NOT_INITIALIZED_ERROR;}var stream=getActiveStream();return stream?stream.getBitrateListFor(type):[];}/**\n     * This method returns the list of all available streams from a given manifest\n     * @param {Object} manifest\n     * @returns {Array} list of {@link StreamInfo}\n     * @memberof module:MediaPlayer\n     * @throws {@link module:MediaPlayer~STREAMING_NOT_INITIALIZED_ERROR STREAMING_NOT_INITIALIZED_ERROR} if called before initializePlayback function\n     * @instance\n     */function getStreamsFromManifest(manifest){if(!streamingInitialized){throw STREAMING_NOT_INITIALIZED_ERROR;}return adapter.getStreamsInfo(manifest);}/**\n     * This method returns the list of all available tracks for a given media type\n     * @param {MediaType} type\n     * @returns {Array} list of {@link MediaInfo}\n     * @memberof module:MediaPlayer\n     * @throws {@link module:MediaPlayer~STREAMING_NOT_INITIALIZED_ERROR STREAMING_NOT_INITIALIZED_ERROR} if called before initializePlayback function\n     * @instance\n     */function getTracksFor(type){if(!streamingInitialized){throw STREAMING_NOT_INITIALIZED_ERROR;}var streamInfo=streamController.getActiveStreamInfo();return mediaController.getTracksFor(type,streamInfo);}/**\n     * This method returns the list of all available tracks for a given media type and streamInfo from a given manifest\n     * @param {MediaType} type\n     * @param {Object} manifest\n     * @param {Object} streamInfo\n     * @returns {Array}  list of {@link MediaInfo}\n     * @memberof module:MediaPlayer\n     * @throws {@link module:MediaPlayer~STREAMING_NOT_INITIALIZED_ERROR STREAMING_NOT_INITIALIZED_ERROR} if called before initializePlayback function\n     * @instance\n     */function getTracksForTypeFromManifest(type,manifest,streamInfo){if(!streamingInitialized){throw STREAMING_NOT_INITIALIZED_ERROR;}streamInfo=streamInfo||adapter.getStreamsInfo(manifest,1)[0];return streamInfo?adapter.getAllMediaInfoForType(streamInfo,type,manifest):[];}/**\n     * @param {MediaType} type\n     * @returns {Object|null} {@link MediaInfo}\n     *\n     * @memberof module:MediaPlayer\n     * @throws {@link module:MediaPlayer~STREAMING_NOT_INITIALIZED_ERROR STREAMING_NOT_INITIALIZED_ERROR} if called before initializePlayback function\n     * @instance\n     */function getCurrentTrackFor(type){if(!streamingInitialized){throw STREAMING_NOT_INITIALIZED_ERROR;}var streamInfo=streamController.getActiveStreamInfo();return mediaController.getCurrentTrackFor(type,streamInfo);}/**\n     * This method allows to set media settings that will be used to pick the initial track. Format of the settings\n     * is following: <br />\n     * {lang: langValue (can be either a string or a regex to match),\n     *  viewpoint: viewpointValue,\n     *  audioChannelConfiguration: audioChannelConfigurationValue,\n     *  accessibility: accessibilityValue,\n     *  role: roleValue}\n     *\n     * @param {MediaType} type\n     * @param {Object} value\n     * @memberof module:MediaPlayer\n     * @throws {@link module:MediaPlayer~MEDIA_PLAYER_NOT_INITIALIZED_ERROR MEDIA_PLAYER_NOT_INITIALIZED_ERROR} if called before initialize function\n     * @instance\n     */function setQualityForSettingsFor(type,value){if(!mediaPlayerInitialized){throw MEDIA_PLAYER_NOT_INITIALIZED_ERROR;}mediaController.setInitialSettings(type,value);}/**\n     * This method returns media settings that is used to pick the initial track. Format of the settings\n     * is following:\n     * {lang: langValue,\n     *  viewpoint: viewpointValue,\n     *  audioChannelConfiguration: audioChannelConfigurationValue,\n     *  accessibility: accessibilityValue,\n     *  role: roleValue}\n     * @param {MediaType} type\n     * @returns {Object}\n     * @memberof module:MediaPlayer\n     * @throws {@link module:MediaPlayer~MEDIA_PLAYER_NOT_INITIALIZED_ERROR MEDIA_PLAYER_NOT_INITIALIZED_ERROR} if called before initialize function\n     * @instance\n     */function getInitialMediaSettingsFor(type){if(!mediaPlayerInitialized){throw MEDIA_PLAYER_NOT_INITIALIZED_ERROR;}return mediaController.getInitialSettings(type);}/**\n     * @param {MediaInfo} track - instance of {@link MediaInfo}\n     * @memberof module:MediaPlayer\n     * @throws {@link module:MediaPlayer~STREAMING_NOT_INITIALIZED_ERROR STREAMING_NOT_INITIALIZED_ERROR} if called before initializePlayback function\n     * @instance\n     */function setCurrentTrack(track){if(!streamingInitialized){throw STREAMING_NOT_INITIALIZED_ERROR;}mediaController.setTrack(track);}/**\n     * This method returns the current track switch mode.\n     *\n     * @param {MediaType} type\n     * @returns {string} mode\n     * @memberof module:MediaPlayer\n     * @throws {@link module:MediaPlayer~MEDIA_PLAYER_NOT_INITIALIZED_ERROR MEDIA_PLAYER_NOT_INITIALIZED_ERROR} if called before initialize function\n     * @instance\n     */function getTrackSwitchModeFor(type){if(!mediaPlayerInitialized){throw MEDIA_PLAYER_NOT_INITIALIZED_ERROR;}return mediaController.getSwitchMode(type);}/**\n     * This method sets the current track switch mode. Available options are:\n     *\n     * MediaController.TRACK_SWITCH_MODE_NEVER_REPLACE\n     * (used to forbid clearing the buffered data (prior to current playback position) after track switch.\n     * Defers to fastSwitchEnabled for placement of new data. Default for video)\n     *\n     * MediaController.TRACK_SWITCH_MODE_ALWAYS_REPLACE\n     * (used to clear the buffered data (prior to current playback position) after track switch. Default for audio)\n     *\n     * @param {MediaType} type\n     * @param {string} mode\n     * @memberof module:MediaPlayer\n     * @throws {@link module:MediaPlayer~MEDIA_PLAYER_NOT_INITIALIZED_ERROR MEDIA_PLAYER_NOT_INITIALIZED_ERROR} if called before initialize function\n     * @instance\n     */function setTrackSwitchModeFor(type,mode){if(!mediaPlayerInitialized){throw MEDIA_PLAYER_NOT_INITIALIZED_ERROR;}mediaController.setSwitchMode(type,mode);}/**\n     * This method sets the selection mode for the initial track. This mode defines how the initial track will be selected\n     * if no initial media settings are set. If initial media settings are set this parameter will be ignored. Available options are:\n     *\n     * MediaController.TRACK_SELECTION_MODE_HIGHEST_BITRATE\n     * this mode makes the player select the track with a highest bitrate. This mode is a default mode.\n     *\n     * MediaController.TRACK_SELECTION_MODE_WIDEST_RANGE\n     * this mode makes the player select the track with a widest range of bitrates\n     *\n     * @param {string} mode\n     * @memberof module:MediaPlayer\n     * @throws {@link module:MediaPlayer~MEDIA_PLAYER_NOT_INITIALIZED_ERROR MEDIA_PLAYER_NOT_INITIALIZED_ERROR} if called before initialize function\n     * @instance\n     */function setSelectionModeForInitialTrack(mode){if(!mediaPlayerInitialized){throw MEDIA_PLAYER_NOT_INITIALIZED_ERROR;}mediaController.setSelectionModeForInitialTrack(mode);}/**\n     * This method returns the track selection mode.\n     *\n     * @returns {string} mode\n     * @memberof module:MediaPlayer\n     * @throws {@link module:MediaPlayer~MEDIA_PLAYER_NOT_INITIALIZED_ERROR MEDIA_PLAYER_NOT_INITIALIZED_ERROR} if called before initialize function\n     * @instance\n     */function getSelectionModeForInitialTrack(){if(!mediaPlayerInitialized){throw MEDIA_PLAYER_NOT_INITIALIZED_ERROR;}return mediaController.getSelectionModeForInitialTrack();}/*\n    ---------------------------------------------------------------------------\n\n        PROTECTION MANAGEMENT\n\n    ---------------------------------------------------------------------------\n    /**\n     * Detects if Protection is included and returns an instance of ProtectionController.js\n     * @memberof module:MediaPlayer\n     * @instance\n     */function getProtectionController(){return detectProtection();}/**\n     * Will override dash.js protection controller.\n     * @param {ProtectionController} value - valid protection controller instance.\n     * @memberof module:MediaPlayer\n     * @instance\n     */function attachProtectionController(value){protectionController=value;}/**\n     * Sets Protection Data required to setup the Protection Module (DRM). Protection Data must\n     * be set before initializing MediaPlayer or, once initialized, before PROTECTION_CREATED event is fired.\n     * @see {@link module:MediaPlayer#initialize initialize()}\n     * @see {@link ProtectionEvents#event:PROTECTION_CREATED dashjs.Protection.events.PROTECTION_CREATED}\n     * @param {ProtectionData} value - object containing\n     * property names corresponding to key system name strings and associated\n     * values being instances of.\n     * @memberof module:MediaPlayer\n     * @instance\n     */function setProtectionData(value){protectionData=value;// Propagate changes in case StreamController is already created\nif(streamController){streamController.setProtectionData(protectionData);}}/*\n    ---------------------------------------------------------------------------\n\n        THUMBNAILS MANAGEMENT\n\n    ---------------------------------------------------------------------------\n    *//**\n     * Return the thumbnail at time position.\n     * @returns {Thumbnail|null} - Thumbnail for the given time position. It returns null in case there are is not a thumbnails representation or\n     * if it doesn't contain a thumbnail for the given time position.\n     * @param {number} time - A relative time, in seconds, based on the return value of the {@link module:MediaPlayer#duration duration()} method is expected\n     * @param {function} callback - A Callback function provided when retrieving thumbnail\n     * @memberof module:MediaPlayer\n     * @instance\n     */function getThumbnail(time,callback){if(time<0){return null;}var s=playbackController.getIsDynamic()?getDVRSeekOffset(time):time;var stream=streamController.getStreamForTime(s);if(stream===null){return null;}var thumbnailController=stream.getThumbnailController();if(!thumbnailController){return null;}var timeInPeriod=streamController.getTimeRelativeToStreamId(s,stream.getId());return thumbnailController.get(timeInPeriod,callback);}/*\n    ---------------------------------------------------------------------------\n\n        TOOLS AND OTHERS FUNCTIONS\n\n    ---------------------------------------------------------------------------\n    *//**\n     * Allows application to retrieve a manifest.  Manifest loading is asynchro\n     * nous and\n     * requires the app-provided callback function\n     *\n     * @param {string} url - url the manifest url\n     * @param {function} callback - A Callback function provided when retrieving manifests\n     * @memberof module:MediaPlayer\n     * @instance\n     */function retrieveManifest(url,callback){var manifestLoader=createManifestLoader();var self=this;var handler=function handler(e){if(!e.error){callback(e.manifest);}else{callback(null,e.error);}eventBus.off(_Events2.default.INTERNAL_MANIFEST_LOADED,handler,self);manifestLoader.reset();};eventBus.on(_Events2.default.INTERNAL_MANIFEST_LOADED,handler,self);uriFragmentModel.initialize(url);manifestLoader.load(url);}/**\n     * Returns the source string or manifest that was attached by calling attachSource()\n     * @returns {string | manifest}\n     * @memberof module:MediaPlayer\n     * @throws {@link module:MediaPlayer~SOURCE_NOT_ATTACHED_ERROR SOURCE_NOT_ATTACHED_ERROR} if called before attachSource function\n     * @instance\n     */function getSource(){if(!source){throw SOURCE_NOT_ATTACHED_ERROR;}return source;}/**\n     * Use this method to set a source URL to a valid MPD manifest file OR\n     * a previously downloaded and parsed manifest object.  Optionally, can\n     * also provide protection information\n     *\n     * @param {string|Object} urlOrManifest - A URL to a valid MPD manifest file, or a\n     * parsed manifest object.\n     *\n     *\n     * @throws {@link module:MediaPlayer~MEDIA_PLAYER_NOT_INITIALIZED_ERROR MEDIA_PLAYER_NOT_INITIALIZED_ERROR} if called before initialize function\n     *\n     * @memberof module:MediaPlayer\n     * @instance\n     */function attachSource(urlOrManifest){if(!mediaPlayerInitialized){throw MEDIA_PLAYER_NOT_INITIALIZED_ERROR;}if(typeof urlOrManifest==='string'){uriFragmentModel.initialize(urlOrManifest);}source=urlOrManifest;if(streamingInitialized||playbackInitialized){resetPlaybackControllers();}if(isReady()){initializePlayback();}}/**\n     * Get the current settings object being used on the player.\n     * @returns {PlayerSettings} The settings object being used.\n     *\n     * @memberof module:MediaPlayer\n     * @instance\n     */function getSettings(){return settings.get();}/**\n     * @summary Update the current settings object being used on the player. Anything left unspecified is not modified.\n     * @param {PlayerSettings} settingsObj - An object corresponding to the settings definition.\n     * @description This function does not update the entire object, only properties in the passed in object are updated.\n     *\n     * This means that updateSettings({a: x}) and updateSettings({b: y}) are functionally equivalent to\n     * updateSettings({a: x, b: y}). If the default values are required again, @see{@link resetSettings}.\n     * @example\n     * player.updateSettings({\n     *      streaming: {\n     *          liveDelayFragmentCount: 8\n     *          abr: {\n     *              maxBitrate: { audio: 100, video: 1000 }\n     *          }\n     *      }\n     *  });\n     * @memberof module:MediaPlayer\n     * @instance\n     */function updateSettings(settingsObj){settings.update(settingsObj);}/**\n     * Resets the settings object back to the default.\n     *\n     * @memberof module:MediaPlayer\n     * @instance\n     */function resetSettings(){settings.reset();}/**\n     * A utility methods which converts UTC timestamp value into a valid time and date string.\n     *\n     * @param {number} time - UTC timestamp to be converted into date and time.\n     * @param {string} locales - a region identifier (i.e. en_US).\n     * @param {boolean} hour12 - 12 vs 24 hour. Set to true for 12 hour time formatting.\n     * @param {boolean} withDate - default is false. Set to true to append current date to UTC time format.\n     * @returns {string} A formatted time and date string.\n     * @memberof module:MediaPlayer\n     * @instance\n     */function formatUTC(time,locales,hour12){var withDate=arguments.length>3&&arguments[3]!==undefined?arguments[3]:false;var dt=new Date(time*1000);var d=dt.toLocaleDateString(locales);var t=dt.toLocaleTimeString(locales,{hour12:hour12});return withDate?t+' '+d:t;}/**\n     * A utility method which converts seconds into TimeCode (i.e. 300 --> 05:00).\n     *\n     * @param {number} value - A number in seconds to be converted into a formatted time code.\n     * @returns {string} A formatted time code string.\n     * @memberof module:MediaPlayer\n     * @instance\n     */function convertToTimeCode(value){value=Math.max(value,0);var h=Math.floor(value/3600);var m=Math.floor(value%3600/60);var s=Math.floor(value%3600%60);return(h===0?'':h<10?'0'+h.toString()+':':h.toString()+':')+(m<10?'0'+m.toString():m.toString())+':'+(s<10?'0'+s.toString():s.toString());}/**\n     * This method should be used to extend or replace internal dash.js objects.\n     * There are two ways to extend dash.js (determined by the override argument):\n     * <ol>\n     * <li>If you set override to true any public method or property in your custom object will\n     * override the dash.js parent object's property(ies) and will be used instead but the\n     * dash.js parent module will still be created.</li>\n     *\n     * <li>If you set override to false your object will completely replace the dash.js object.\n     * (Note: This is how it was in 1.x of Dash.js with Dijon).</li>\n     * </ol>\n     * <b>When you extend you get access to this.context, this.factory and this.parent to operate with in your custom object.</b>\n     * <ul>\n     * <li><b>this.context</b> - can be used to pass context for singleton access.</li>\n     * <li><b>this.factory</b> - can be used to call factory.getSingletonInstance().</li>\n     * <li><b>this.parent</b> - is the reference of the parent object to call other public methods. (this.parent is excluded if you extend with override set to false or option 2)</li>\n     * </ul>\n     * <b>You must call extend before you call initialize</b>\n     * @see {@link module:MediaPlayer#initialize initialize()}\n     * @param {string} parentNameString - name of parent module\n     * @param {Object} childInstance - overriding object\n     * @param {boolean} override - replace only some methods (true) or the whole object (false)\n     * @memberof module:MediaPlayer\n     * @instance\n     */function extend(parentNameString,childInstance,override){_FactoryMaker2.default.extend(parentNameString,childInstance,override,context);}/**\n     * This method returns the active stream\n     *\n     * @throws {@link module:MediaPlayer~STREAMING_NOT_INITIALIZED_ERROR STREAMING_NOT_INITIALIZED_ERROR} if called before initializePlayback function\n     * @memberof module:MediaPlayer\n     * @instance\n     */function getActiveStream(){if(!streamingInitialized){throw STREAMING_NOT_INITIALIZED_ERROR;}var streamInfo=streamController.getActiveStreamInfo();return streamInfo?streamController.getStreamById(streamInfo.id):null;}//***********************************\n// PRIVATE METHODS\n//***********************************\nfunction resetPlaybackControllers(){playbackInitialized=false;streamingInitialized=false;adapter.reset();streamController.reset();playbackController.reset();abrController.reset();mediaController.reset();textController.reset();if(protectionController){if(settings.get().streaming.keepProtectionMediaKeys){protectionController.stop();}else{protectionController.reset();protectionController=null;detectProtection();}}cmcdModel.reset();}function createPlaybackControllers(){// creates or get objects instances\nvar manifestLoader=createManifestLoader();if(!streamController){streamController=(0,_StreamController2.default)(context).getInstance();}// configure controllers\nmediaController.setConfig({domStorage:domStorage});streamController.setConfig({capabilities:capabilities,manifestLoader:manifestLoader,manifestModel:manifestModel,mediaPlayerModel:mediaPlayerModel,protectionController:protectionController,adapter:adapter,dashMetrics:dashMetrics,errHandler:errHandler,timelineConverter:timelineConverter,videoModel:videoModel,playbackController:playbackController,abrController:abrController,mediaController:mediaController,textController:textController,settings:settings,baseURLController:baseURLController});playbackController.setConfig({streamController:streamController,dashMetrics:dashMetrics,mediaPlayerModel:mediaPlayerModel,adapter:adapter,videoModel:videoModel,timelineConverter:timelineConverter,uriFragmentModel:uriFragmentModel,settings:settings});abrController.setConfig({streamController:streamController,domStorage:domStorage,mediaPlayerModel:mediaPlayerModel,dashMetrics:dashMetrics,adapter:adapter,videoModel:videoModel,settings:settings});abrController.createAbrRulesCollection();textController.setConfig({errHandler:errHandler,manifestModel:manifestModel,adapter:adapter,mediaController:mediaController,streamController:streamController,videoModel:videoModel});cmcdModel.setConfig({abrController:abrController,dashMetrics:dashMetrics,playbackController:playbackController});// initialises controller\nstreamController.initialize(autoPlay,protectionData);cmcdModel.initialize();}function createManifestLoader(){return(0,_ManifestLoader2.default)(context).create({errHandler:errHandler,dashMetrics:dashMetrics,mediaPlayerModel:mediaPlayerModel,requestModifier:(0,_RequestModifier2.default)(context).getInstance(),mssHandler:mssHandler,settings:settings});}function detectProtection(){if(protectionController){return protectionController;}// do not require Protection as dependencies as this is optional and intended to be loaded separately\nvar Protection=dashjs.Protection;/* jshint ignore:line */if(typeof Protection==='function'){//TODO need a better way to register/detect plugin components\nvar protection=Protection(context).create();_Events2.default.extend(Protection.events);_MediaPlayerEvents2.default.extend(Protection.events,{publicOnly:true});_Errors2.default.extend(Protection.errors);if(!capabilities){capabilities=(0,_Capabilities2.default)(context).getInstance();}protectionController=protection.createProtectionSystem({debug:debug,errHandler:errHandler,videoModel:videoModel,capabilities:capabilities,eventBus:eventBus,events:_Events2.default,BASE64:_base2.default,constants:_Constants2.default});return protectionController;}return null;}function detectMetricsReporting(){if(metricsReportingController){return;}// do not require MetricsReporting as dependencies as this is optional and intended to be loaded separately\nvar MetricsReporting=dashjs.MetricsReporting;/* jshint ignore:line */if(typeof MetricsReporting==='function'){//TODO need a better way to register/detect plugin components\nvar metricsReporting=MetricsReporting(context).create();metricsReportingController=metricsReporting.createMetricsReporting({debug:debug,eventBus:eventBus,mediaElement:getVideoElement(),adapter:adapter,dashMetrics:dashMetrics,events:_Events2.default,constants:_Constants2.default,metricsConstants:_MetricsConstants2.default});}}function detectMss(){if(mssHandler){return;}// do not require MssHandler as dependencies as this is optional and intended to be loaded separately\nvar MssHandler=dashjs.MssHandler;/* jshint ignore:line */if(typeof MssHandler==='function'){//TODO need a better way to register/detect plugin components\n_Errors2.default.extend(MssHandler.errors);mssHandler=MssHandler(context).create({eventBus:eventBus,mediaPlayerModel:mediaPlayerModel,dashMetrics:dashMetrics,manifestModel:manifestModel,playbackController:playbackController,protectionController:protectionController,baseURLController:baseURLController,errHandler:errHandler,events:_Events2.default,constants:_Constants2.default,debug:debug,initSegmentType:_HTTPRequest.HTTPRequest.INIT_SEGMENT_TYPE,BASE64:_base2.default,ISOBoxer:_codemIsoboxer2.default,settings:settings});}}function getAsUTC(valToConvert){var metric=dashMetrics.getCurrentDVRInfo();var availableFrom=void 0,utcValue=void 0;if(!metric){return 0;}availableFrom=metric.manifestInfo.availableFrom.getTime()/1000;utcValue=valToConvert+(availableFrom+metric.range.start);return utcValue;}function initializePlayback(){if(offlineControllerInitialized){offlineController.resetDownloads();}if(!streamingInitialized&&source){streamingInitialized=true;logger.info('Streaming Initialized');createPlaybackControllers();if(typeof source==='string'){streamController.load(source);}else{streamController.loadWithManifest(source);}}if(!playbackInitialized&&isReady()){playbackInitialized=true;logger.info('Playback Initialized');}}/**\n     * Returns the DashAdapter.js Module.\n     *\n     * @see {@link module:DashAdapter}\n     * @returns {Object}\n     * @memberof module:MediaPlayer\n     * @instance\n     */function getDashAdapter(){return adapter;}instance={initialize:initialize,setConfig:setConfig,on:on,off:off,extend:extend,attachView:attachView,attachSource:attachSource,isReady:isReady,preload:preload,play:play,isPaused:isPaused,pause:pause,isSeeking:isSeeking,isDynamic:isDynamic,seek:seek,setPlaybackRate:setPlaybackRate,getPlaybackRate:getPlaybackRate,setMute:setMute,isMuted:isMuted,setVolume:setVolume,getVolume:getVolume,time:time,duration:duration,timeAsUTC:timeAsUTC,durationAsUTC:durationAsUTC,getActiveStream:getActiveStream,getDVRWindowSize:getDVRWindowSize,getDVRSeekOffset:getDVRSeekOffset,convertToTimeCode:convertToTimeCode,formatUTC:formatUTC,getVersion:getVersion,getDebug:getDebug,getBufferLength:getBufferLength,getTTMLRenderingDiv:getTTMLRenderingDiv,getVideoElement:getVideoElement,getSource:getSource,getCurrentLiveLatency:getCurrentLiveLatency,getTopBitrateInfoFor:getTopBitrateInfoFor,setAutoPlay:setAutoPlay,getAutoPlay:getAutoPlay,getDashMetrics:getDashMetrics,getQualityFor:getQualityFor,setQualityFor:setQualityFor,updatePortalSize:updatePortalSize,setTextDefaultLanguage:setTextDefaultLanguage,getTextDefaultLanguage:getTextDefaultLanguage,setTextDefaultEnabled:setTextDefaultEnabled,getTextDefaultEnabled:getTextDefaultEnabled,enableText:enableText,enableForcedTextStreaming:enableForcedTextStreaming,isTextEnabled:isTextEnabled,setTextTrack:setTextTrack,getBitrateInfoListFor:getBitrateInfoListFor,getStreamsFromManifest:getStreamsFromManifest,getTracksFor:getTracksFor,getTracksForTypeFromManifest:getTracksForTypeFromManifest,getCurrentTrackFor:getCurrentTrackFor,setInitialMediaSettingsFor:setQualityForSettingsFor,getInitialMediaSettingsFor:getInitialMediaSettingsFor,setCurrentTrack:setCurrentTrack,getTrackSwitchModeFor:getTrackSwitchModeFor,setTrackSwitchModeFor:setTrackSwitchModeFor,setSelectionModeForInitialTrack:setSelectionModeForInitialTrack,getSelectionModeForInitialTrack:getSelectionModeForInitialTrack,addABRCustomRule:addABRCustomRule,removeABRCustomRule:removeABRCustomRule,removeAllABRCustomRule:removeAllABRCustomRule,getAverageThroughput:getAverageThroughput,retrieveManifest:retrieveManifest,addUTCTimingSource:addUTCTimingSource,removeUTCTimingSource:removeUTCTimingSource,clearDefaultUTCTimingSources:clearDefaultUTCTimingSources,restoreDefaultUTCTimingSources:restoreDefaultUTCTimingSources,setXHRWithCredentialsForType:setXHRWithCredentialsForType,getXHRWithCredentialsForType:getXHRWithCredentialsForType,getProtectionController:getProtectionController,attachProtectionController:attachProtectionController,setProtectionData:setProtectionData,displayCaptionsOnTop:displayCaptionsOnTop,attachTTMLRenderingDiv:attachTTMLRenderingDiv,getCurrentTextTrackIndex:getCurrentTextTrackIndex,getThumbnail:getThumbnail,loadDownloadsFromStorage:loadDownloadsFromStorage,createDownload:createDownload,getDashAdapter:getDashAdapter,getSettings:getSettings,updateSettings:updateSettings,resetSettings:resetSettings,stopDownload:stopDownload,getAllDownloads:getAllDownloads,deleteDownload:deleteDownload,resumeDownload:resumeDownload,getDownloadProgression:getDownloadProgression,startDownload:startDownload,initDownload:initDownload,reset:reset};setup();return instance;}MediaPlayer.__dashjs_factory_name='MediaPlayer';var factory=_FactoryMaker2.default.getClassFactory(MediaPlayer);factory.events=_MediaPlayerEvents2.default;factory.errors=_Errors2.default;_FactoryMaker2.default.updateClassFactory(MediaPlayer.__dashjs_factory_name,factory);exports.default=factory;\n//# sourceMappingURL=MediaPlayer.js.map\n","var fails = require('../internals/fails');\nvar classof = require('../internals/classof-raw');\n\nvar split = ''.split;\n\n// fallback for non-array-like ES3 and non-enumerable old V8 strings\nmodule.exports = fails(function () {\n  // throws an error in rhino, see https://github.com/mozilla/rhino/issues/346\n  // eslint-disable-next-line no-prototype-builtins\n  return !Object('z').propertyIsEnumerable(0);\n}) ? function (it) {\n  return classof(it) == 'String' ? split.call(it, '') : Object(it);\n} : Object;\n","var wellKnownSymbol = require('../internals/well-known-symbol');\nvar create = require('../internals/object-create');\nvar definePropertyModule = require('../internals/object-define-property');\n\nvar UNSCOPABLES = wellKnownSymbol('unscopables');\nvar ArrayPrototype = Array.prototype;\n\n// Array.prototype[@@unscopables]\n// https://tc39.github.io/ecma262/#sec-array.prototype-@@unscopables\nif (ArrayPrototype[UNSCOPABLES] == undefined) {\n  definePropertyModule.f(ArrayPrototype, UNSCOPABLES, {\n    configurable: true,\n    value: create(null)\n  });\n}\n\n// add a key to Array.prototype[@@unscopables]\nmodule.exports = function (key) {\n  ArrayPrototype[UNSCOPABLES][key] = true;\n};\n","var global = require('../internals/global');\n\nmodule.exports = function (a, b) {\n  var console = global.console;\n  if (console && console.error) {\n    arguments.length === 1 ? console.error(a) : console.error(a, b);\n  }\n};\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _FactoryMaker=require('../../core/FactoryMaker');var _FactoryMaker2=_interopRequireDefault(_FactoryMaker);var _Constants=require('../../streaming/constants/Constants');var _Constants2=_interopRequireDefault(_Constants);var _SegmentsUtils=require('./SegmentsUtils');function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}function TemplateSegmentsGetter(config,isDynamic){config=config||{};var timelineConverter=config.timelineConverter;var instance=void 0;function checkConfig(){if(!timelineConverter||!timelineConverter.hasOwnProperty('calcPeriodRelativeTimeFromMpdRelativeTime')){throw new Error(_Constants2.default.MISSING_CONFIG_ERROR);}}function getSegmentByIndex(representation,index){checkConfig();if(!representation){return null;}var template=representation.adaptation.period.mpd.manifest.Period_asArray[representation.adaptation.period.index].AdaptationSet_asArray[representation.adaptation.index].Representation_asArray[representation.index].SegmentTemplate;index=Math.max(index,0);var seg=(0,_SegmentsUtils.getIndexBasedSegment)(timelineConverter,isDynamic,representation,index);if(seg){seg.replacementTime=(index-1)*representation.segmentDuration;var url=template.media;url=(0,_SegmentsUtils.replaceTokenForTemplate)(url,'Number',seg.replacementNumber);url=(0,_SegmentsUtils.replaceTokenForTemplate)(url,'Time',seg.replacementTime);seg.media=url;}var duration=representation.segmentDuration;var availabilityWindow=representation.segmentAvailabilityRange;if(isNaN(duration)){representation.availableSegmentsNumber=1;}else{representation.availableSegmentsNumber=Math.ceil((availabilityWindow.end-availabilityWindow.start)/duration);}return seg;}function getSegmentByTime(representation,requestedTime){checkConfig();if(!representation){return null;}var duration=representation.segmentDuration;if(isNaN(duration)){return null;}var periodTime=timelineConverter.calcPeriodRelativeTimeFromMpdRelativeTime(representation,requestedTime);var index=Math.floor(periodTime/duration);return getSegmentByIndex(representation,index);}instance={getSegmentByIndex:getSegmentByIndex,getSegmentByTime:getSegmentByTime};return instance;}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n */TemplateSegmentsGetter.__dashjs_factory_name='TemplateSegmentsGetter';var factory=_FactoryMaker2.default.getClassFactory(TemplateSegmentsGetter);exports.default=factory;\n//# sourceMappingURL=TemplateSegmentsGetter.js.map\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n *//* global escape: true *//**\n * Microsoft PlayReady Test License Server\n *\n * For testing content that uses the PlayReady test server at\n *\n * @implements LicenseServer\n * @class\n * @ignore\n */function PlayReady(){var instance=void 0;var soap='http://schemas.xmlsoap.org/soap/envelope/';function uintToString(arrayBuffer){var encodedString=String.fromCharCode.apply(null,new Uint8Array(arrayBuffer));var decodedString=decodeURIComponent(escape(encodedString));return decodedString;}function parseServerResponse(serverResponse){if(window.DOMParser){var stringResponse=uintToString(serverResponse);var parser=new window.DOMParser();var xmlDoc=parser.parseFromString(stringResponse,'text/xml');var envelope=xmlDoc?xmlDoc.getElementsByTagNameNS(soap,'Envelope')[0]:null;var body=envelope?envelope.getElementsByTagNameNS(soap,'Body')[0]:null;var fault=body?body.getElementsByTagNameNS(soap,'Fault')[0]:null;if(fault){return null;}}return serverResponse;}function parseErrorResponse(serverResponse){var faultstring='';var statusCode='';var message='';var idStart=-1;var idEnd=-1;if(window.DOMParser){var stringResponse=uintToString(serverResponse);var parser=new window.DOMParser();var xmlDoc=parser.parseFromString(stringResponse,'text/xml');var envelope=xmlDoc?xmlDoc.getElementsByTagNameNS(soap,'Envelope')[0]:null;var body=envelope?envelope.getElementsByTagNameNS(soap,'Body')[0]:null;var fault=body?body.getElementsByTagNameNS(soap,'Fault')[0]:null;var detail=fault?fault.getElementsByTagName('detail')[0]:null;var exception=detail?detail.getElementsByTagName('Exception')[0]:null;var node=null;if(fault===null){return stringResponse;}node=fault.getElementsByTagName('faultstring')[0].firstChild;faultstring=node?node.nodeValue:null;if(exception!==null){node=exception.getElementsByTagName('StatusCode')[0];statusCode=node?node.firstChild.nodeValue:null;node=exception.getElementsByTagName('Message')[0];message=node?node.firstChild.nodeValue:null;idStart=message?message.lastIndexOf('[')+1:-1;idEnd=message?message.indexOf(']'):-1;message=message?message.substring(idStart,idEnd):'';}}var errorString='code: '+statusCode+', name: '+faultstring;if(message){errorString+=', message: '+message;}return errorString;}function getServerURLFromMessage(url/*, message, messageType*/){return url;}function getHTTPMethod()/*messageType*/{return'POST';}function getResponseType()/*keySystemStr, messageType*/{return'arraybuffer';}function getLicenseMessage(serverResponse/*, keySystemStr, messageType*/){return parseServerResponse.call(this,serverResponse);}function getErrorResponse(serverResponse/*, keySystemStr, messageType*/){return parseErrorResponse.call(this,serverResponse);}instance={getServerURLFromMessage:getServerURLFromMessage,getHTTPMethod:getHTTPMethod,getResponseType:getResponseType,getLicenseMessage:getLicenseMessage,getErrorResponse:getErrorResponse};return instance;}PlayReady.__dashjs_factory_name='PlayReady';exports.default=dashjs.FactoryMaker.getSingletonFactory(PlayReady);/* jshint ignore:line */\n//# sourceMappingURL=PlayReady.js.map\n","\"use strict\";Object.defineProperty(exports,\"__esModule\",{value:true});/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n *//**\n * @module FactoryMaker\n * @ignore\n */var FactoryMaker=function(){var instance=void 0;var singletonContexts=[];var singletonFactories={};var classFactories={};function extend(name,childInstance,override,context){if(!context[name]&&childInstance){context[name]={instance:childInstance,override:override};}}/**\n     * Use this method from your extended object.  this.factory is injected into your object.\n     * this.factory.getSingletonInstance(this.context, 'VideoModel')\n     * will return the video model for use in the extended object.\n     *\n     * @param {Object} context - injected into extended object as this.context\n     * @param {string} className - string name found in all dash.js objects\n     * with name __dashjs_factory_name Will be at the bottom. Will be the same as the object's name.\n     * @returns {*} Context aware instance of specified singleton name.\n     * @memberof module:FactoryMaker\n     * @instance\n     */function getSingletonInstance(context,className){for(var i in singletonContexts){var obj=singletonContexts[i];if(obj.context===context&&obj.name===className){return obj.instance;}}return null;}/**\n     * Use this method to add an singleton instance to the system.  Useful for unit testing to mock objects etc.\n     *\n     * @param {Object} context\n     * @param {string} className\n     * @param {Object} instance\n     * @memberof module:FactoryMaker\n     * @instance\n     */function setSingletonInstance(context,className,instance){for(var i in singletonContexts){var obj=singletonContexts[i];if(obj.context===context&&obj.name===className){singletonContexts[i].instance=instance;return;}}singletonContexts.push({name:className,context:context,instance:instance});}/*------------------------------------------------------------------------------------------*/// Factories storage Management\n/*------------------------------------------------------------------------------------------*/function getFactoryByName(name,factoriesArray){return factoriesArray[name];}function updateFactory(name,factory,factoriesArray){if(name in factoriesArray){factoriesArray[name]=factory;}}/*------------------------------------------------------------------------------------------*/// Class Factories Management\n/*------------------------------------------------------------------------------------------*/function updateClassFactory(name,factory){updateFactory(name,factory,classFactories);}function getClassFactoryByName(name){return getFactoryByName(name,classFactories);}function getClassFactory(classConstructor){var factory=getFactoryByName(classConstructor.__dashjs_factory_name,classFactories);if(!factory){factory=function factory(context){if(context===undefined){context={};}return{create:function create(){return merge(classConstructor,context,arguments);}};};classFactories[classConstructor.__dashjs_factory_name]=factory;// store factory\n}return factory;}/*------------------------------------------------------------------------------------------*/// Singleton Factory MAangement\n/*------------------------------------------------------------------------------------------*/function updateSingletonFactory(name,factory){updateFactory(name,factory,singletonFactories);}function getSingletonFactoryByName(name){return getFactoryByName(name,singletonFactories);}function getSingletonFactory(classConstructor){var factory=getFactoryByName(classConstructor.__dashjs_factory_name,singletonFactories);if(!factory){factory=function factory(context){var instance=void 0;if(context===undefined){context={};}return{getInstance:function getInstance(){// If we don't have an instance yet check for one on the context\nif(!instance){instance=getSingletonInstance(context,classConstructor.__dashjs_factory_name);}// If there's no instance on the context then create one\nif(!instance){instance=merge(classConstructor,context,arguments);singletonContexts.push({name:classConstructor.__dashjs_factory_name,context:context,instance:instance});}return instance;}};};singletonFactories[classConstructor.__dashjs_factory_name]=factory;// store factory\n}return factory;}function merge(classConstructor,context,args){var classInstance=void 0;var className=classConstructor.__dashjs_factory_name;var extensionObject=context[className];if(extensionObject){var extension=extensionObject.instance;if(extensionObject.override){//Override public methods in parent but keep parent.\nclassInstance=classConstructor.apply({context:context},args);extension=extension.apply({context:context,factory:instance,parent:classInstance},args);for(var prop in extension){if(classInstance.hasOwnProperty(prop)){classInstance[prop]=extension[prop];}}}else{//replace parent object completely with new object. Same as dijon.\nreturn extension.apply({context:context,factory:instance},args);}}else{// Create new instance of the class\nclassInstance=classConstructor.apply({context:context},args);}// Add getClassName function to class instance prototype (used by Debug)\nclassInstance.getClassName=function(){return className;};return classInstance;}instance={extend:extend,getSingletonInstance:getSingletonInstance,setSingletonInstance:setSingletonInstance,getSingletonFactory:getSingletonFactory,getSingletonFactoryByName:getSingletonFactoryByName,updateSingletonFactory:updateSingletonFactory,getClassFactory:getClassFactory,getClassFactoryByName:getClassFactoryByName,updateClassFactory:updateClassFactory};return instance;}();exports.default=FactoryMaker;\n//# sourceMappingURL=FactoryMaker.js.map\n","'use strict';\n\nvar createError = require('./createError');\n\n/**\n * Resolve or reject a Promise based on response status.\n *\n * @param {Function} resolve A function that resolves the promise.\n * @param {Function} reject A function that rejects the promise.\n * @param {object} response The response.\n */\nmodule.exports = function settle(resolve, reject, response) {\n  var validateStatus = response.config.validateStatus;\n  if (!response.status || !validateStatus || validateStatus(response.status)) {\n    resolve(response);\n  } else {\n    reject(createError(\n      'Request failed with status code ' + response.status,\n      response.config,\n      null,\n      response.request,\n      response\n    ));\n  }\n};\n","'use strict';\n\n/*<replacement>*/\n\nvar pna = require('process-nextick-args');\n/*</replacement>*/\n\n// undocumented cb() API, needed for core, not for public API\nfunction destroy(err, cb) {\n  var _this = this;\n\n  var readableDestroyed = this._readableState && this._readableState.destroyed;\n  var writableDestroyed = this._writableState && this._writableState.destroyed;\n\n  if (readableDestroyed || writableDestroyed) {\n    if (cb) {\n      cb(err);\n    } else if (err && (!this._writableState || !this._writableState.errorEmitted)) {\n      pna.nextTick(emitErrorNT, this, err);\n    }\n    return this;\n  }\n\n  // we set destroyed to true before firing error callbacks in order\n  // to make it re-entrance safe in case destroy() is called within callbacks\n\n  if (this._readableState) {\n    this._readableState.destroyed = true;\n  }\n\n  // if this is a duplex stream mark the writable part as destroyed as well\n  if (this._writableState) {\n    this._writableState.destroyed = true;\n  }\n\n  this._destroy(err || null, function (err) {\n    if (!cb && err) {\n      pna.nextTick(emitErrorNT, _this, err);\n      if (_this._writableState) {\n        _this._writableState.errorEmitted = true;\n      }\n    } else if (cb) {\n      cb(err);\n    }\n  });\n\n  return this;\n}\n\nfunction undestroy() {\n  if (this._readableState) {\n    this._readableState.destroyed = false;\n    this._readableState.reading = false;\n    this._readableState.ended = false;\n    this._readableState.endEmitted = false;\n  }\n\n  if (this._writableState) {\n    this._writableState.destroyed = false;\n    this._writableState.ended = false;\n    this._writableState.ending = false;\n    this._writableState.finished = false;\n    this._writableState.errorEmitted = false;\n  }\n}\n\nfunction emitErrorNT(self, err) {\n  self.emit('error', err);\n}\n\nmodule.exports = {\n  destroy: destroy,\n  undestroy: undestroy\n};","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});function _classCallCheck(instance,Constructor){if(!(instance instanceof Constructor)){throw new TypeError(\"Cannot call a class as a function\");}}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n *//**\n * @classdesc Represents a set of configurations that describe the capabilities desired for\n *  support by a given CDM\n * @ignore\n */var KeySystemConfiguration=/**\n     * @param {Array.<MediaCapability>} audioCapabilities array of\n     * desired audio capabilities.  Higher preference capabilities should be placed earlier\n     * in the array.\n     * @param {Array.<MediaCapability>} videoCapabilities array of\n     * desired video capabilities.  Higher preference capabilities should be placed earlier\n     * in the array.\n     * @param {string} distinctiveIdentifier desired use of distinctive identifiers.\n     * One of \"required\", \"optional\", or \"not-allowed\"\n     * @param {string} persistentState desired support for persistent storage of\n     * key systems.  One of \"required\", \"optional\", or \"not-allowed\"\n     * @param {Array.<string>} sessionTypes List of session types that must\n     * be supported by the key system\n     * @class\n     */function KeySystemConfiguration(audioCapabilities,videoCapabilities,distinctiveIdentifier,persistentState,sessionTypes){_classCallCheck(this,KeySystemConfiguration);this.initDataTypes=['cenc'];if(audioCapabilities&&audioCapabilities.length){this.audioCapabilities=audioCapabilities;}if(videoCapabilities&&videoCapabilities.length){this.videoCapabilities=videoCapabilities;}this.distinctiveIdentifier=distinctiveIdentifier;this.persistentState=persistentState;this.sessionTypes=sessionTypes;};exports.default=KeySystemConfiguration;\n//# sourceMappingURL=KeySystemConfiguration.js.map\n","\"use strict\";Object.defineProperty(exports,\"__esModule\",{value:true});function _classCallCheck(instance,Constructor){if(!(instance instanceof Constructor)){throw new TypeError(\"Cannot call a class as a function\");}}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n *//**\n * @class\n * @ignore\n */var MetricsList=function MetricsList(){_classCallCheck(this,MetricsList);this.TcpList=[];this.HttpList=[];this.RepSwitchList=[];this.BufferLevel=[];this.BufferState=[];this.PlayList=[];this.DroppedFrames=[];this.SchedulingInfo=[];this.DVRInfo=[];this.ManifestUpdate=[];this.RequestsQueue=null;this.DVBErrors=[];};exports.default=MetricsList;\n//# sourceMappingURL=MetricsList.js.map\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});function _classCallCheck(instance,Constructor){if(!(instance instanceof Constructor)){throw new TypeError(\"Cannot call a class as a function\");}}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n *//**\n * @class\n * @ignore\n */var Event=function Event(){_classCallCheck(this,Event);this.duration=NaN;this.presentationTime=NaN;this.id=NaN;this.messageData='';this.eventStream=null;this.presentationTimeDelta=NaN;// Specific EMSG Box parameter\n};exports.default=Event;\n//# sourceMappingURL=Event.js.map\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _FactoryMaker=require('../../core/FactoryMaker');var _FactoryMaker2=_interopRequireDefault(_FactoryMaker);function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}function EmbeddedTextHtmlRender(){var captionId=0;var instance=void 0;/* HTML Rendering functions */function checkIndent(chars){var line='';for(var c=0;c<chars.length;++c){var uc=chars[c];line+=uc.uchar;}var l=line.length;var ll=line.replace(/^\\s+/,'').length;return l-ll;}function getRegionProperties(region){return'left: '+region.x*3.125+'%; top: '+region.y1*6.66+'%; width: '+(100-region.x*3.125)+'%; height: '+Math.max(region.y2-1-region.y1,1)*6.66+'%; align-items: flex-start; overflow: visible; -webkit-writing-mode: horizontal-tb;';}function createRGB(color){if(color==='red'){return'rgb(255, 0, 0)';}else if(color==='green'){return'rgb(0, 255, 0)';}else if(color==='blue'){return'rgb(0, 0, 255)';}else if(color==='cyan'){return'rgb(0, 255, 255)';}else if(color==='magenta'){return'rgb(255, 0, 255)';}else if(color==='yellow'){return'rgb(255, 255, 0)';}else if(color==='white'){return'rgb(255, 255, 255)';}else if(color==='black'){return'rgb(0, 0, 0)';}return color;}function getStyle(videoElement,style){var fontSize=videoElement.videoHeight/15.0;if(style){return'font-size: '+fontSize+'px; font-family: Menlo, Consolas, \\'Cutive Mono\\', monospace; color: '+(style.foreground?createRGB(style.foreground):'rgb(255, 255, 255)')+'; font-style: '+(style.italics?'italic':'normal')+'; text-decoration: '+(style.underline?'underline':'none')+'; white-space: pre; background-color: '+(style.background?createRGB(style.background):'transparent')+';';}else{return'font-size: '+fontSize+'px; font-family: Menlo, Consolas, \\'Cutive Mono\\', monospace; justify-content: flex-start; text-align: left; color: rgb(255, 255, 255); font-style: normal; white-space: pre; line-height: normal; font-weight: normal; text-decoration: none; width: 100%; display: flex;';}}function ltrim(s){return s.replace(/^\\s+/g,'');}function rtrim(s){return s.replace(/\\s+$/g,'');}function createHTMLCaptionsFromScreen(videoElement,startTime,endTime,captionScreen){var currRegion=null;var existingRegion=null;var lastRowHasText=false;var lastRowIndentL=-1;var currP={start:startTime,end:endTime,spans:[]};var currentStyle='style_cea608_white_black';var seenRegions={};var styleStates={};var regions=[];var r=void 0,s=void 0;for(r=0;r<15;++r){var row=captionScreen.rows[r];var line='';var prevPenState=null;if(false===row.isEmpty()){/* Row is not empty *//* Get indentation of this row */var rowIndent=checkIndent(row.chars);/* Create a new region is there is none */if(currRegion===null){currRegion={x:rowIndent,y1:r,y2:r+1,p:[]};}/* Check if indentation has changed and we had text of last row */if(rowIndent!==lastRowIndentL&&lastRowHasText){currRegion.p.push(currP);currP={start:startTime,end:endTime,spans:[]};currRegion.y2=r;currRegion.name='region_'+currRegion.x+'_'+currRegion.y1+'_'+currRegion.y2;if(false===seenRegions.hasOwnProperty(currRegion.name)){regions.push(currRegion);seenRegions[currRegion.name]=currRegion;}else{existingRegion=seenRegions[currRegion.name];existingRegion.p.contat(currRegion.p);}currRegion={x:rowIndent,y1:r,y2:r+1,p:[]};}for(var c=0;c<row.chars.length;++c){var uc=row.chars[c];var currPenState=uc.penState;if(prevPenState===null||!currPenState.equals(prevPenState)){if(line.trim().length>0){currP.spans.push({name:currentStyle,line:line,row:r});line='';}var currPenStateString='style_cea608_'+currPenState.foreground+'_'+currPenState.background;if(currPenState.underline){currPenStateString+='_underline';}if(currPenState.italics){currPenStateString+='_italics';}if(!styleStates.hasOwnProperty(currPenStateString)){styleStates[currPenStateString]=JSON.parse(JSON.stringify(currPenState));}prevPenState=currPenState;currentStyle=currPenStateString;}line+=uc.uchar;}if(line.trim().length>0){currP.spans.push({name:currentStyle,line:line,row:r});}lastRowHasText=true;lastRowIndentL=rowIndent;}else{/* Row is empty */lastRowHasText=false;lastRowIndentL=-1;if(currRegion){currRegion.p.push(currP);currP={start:startTime,end:endTime,spans:[]};currRegion.y2=r;currRegion.name='region_'+currRegion.x+'_'+currRegion.y1+'_'+currRegion.y2;if(false===seenRegions.hasOwnProperty(currRegion.name)){regions.push(currRegion);seenRegions[currRegion.name]=currRegion;}else{existingRegion=seenRegions[currRegion.name];existingRegion.p.contat(currRegion.p);}currRegion=null;}}}if(currRegion){currRegion.p.push(currP);currRegion.y2=r+1;currRegion.name='region_'+currRegion.x+'_'+currRegion.y1+'_'+currRegion.y2;if(false===seenRegions.hasOwnProperty(currRegion.name)){regions.push(currRegion);seenRegions[currRegion.name]=currRegion;}else{existingRegion=seenRegions[currRegion.name];existingRegion.p.contat(currRegion.p);}currRegion=null;}var captionsArray=[];/* Loop thru regions */for(r=0;r<regions.length;++r){var region=regions[r];var cueID='sub_cea608_'+captionId++;var finalDiv=document.createElement('div');finalDiv.id=cueID;var cueRegionProperties=getRegionProperties(region);finalDiv.style.cssText='position: absolute; margin: 0; display: flex; box-sizing: border-box; pointer-events: none;'+cueRegionProperties;var bodyDiv=document.createElement('div');bodyDiv.className='paragraph bodyStyle';bodyDiv.style.cssText=getStyle(videoElement);var cueUniWrapper=document.createElement('div');cueUniWrapper.className='cueUniWrapper';cueUniWrapper.style.cssText='unicode-bidi: normal; direction: ltr;';for(var p=0;p<region.p.length;++p){var ptag=region.p[p];var lastSpanRow=0;for(s=0;s<ptag.spans.length;++s){var span=ptag.spans[s];if(span.line.length>0){if(s!==0&&lastSpanRow!=span.row){var brElement=document.createElement('br');brElement.className='lineBreak';cueUniWrapper.appendChild(brElement);}var sameRow=false;if(lastSpanRow===span.row){sameRow=true;}lastSpanRow=span.row;var spanStyle=styleStates[span.name];var spanElement=document.createElement('span');spanElement.className='spanPadding '+span.name+' customSpanColor';spanElement.style.cssText=getStyle(videoElement,spanStyle);/* If this is not the first span, and it's on the same\n                         * row as the last one */if(s!==0&&sameRow){/* and it's the last span on this row */if(s===ptag.spans.length-1){/* trim only the right side */spanElement.textContent=rtrim(span.line);}else{/* don't trim at all */spanElement.textContent=span.line;}}else{/* if there is more than 1 span and this isn't the last span */if(ptag.spans.length>1&&s<ptag.spans.length-1){/* Check if next text is on same row */if(span.row===ptag.spans[s+1].row){/* Next element on same row, trim start */spanElement.textContent=ltrim(span.line);}else{/* Different rows, trim both */spanElement.textContent=span.line.trim();}}else{spanElement.textContent=span.line.trim();}}cueUniWrapper.appendChild(spanElement);}}}bodyDiv.appendChild(cueUniWrapper);finalDiv.appendChild(bodyDiv);var fontSize={'bodyStyle':['%',90]};for(var _s in styleStates){if(styleStates.hasOwnProperty(_s)){fontSize[_s]=['%',90];}}captionsArray.push({type:'html',start:startTime,end:endTime,cueHTMLElement:finalDiv,cueID:cueID,cellResolution:[32,15],isFromCEA608:true,fontSize:fontSize,lineHeight:{},linePadding:{}});}return captionsArray;}instance={createHTMLCaptionsFromScreen:createHTMLCaptionsFromScreen};return instance;}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n */EmbeddedTextHtmlRender.__dashjs_factory_name='EmbeddedTextHtmlRender';exports.default=_FactoryMaker2.default.getSingletonFactory(EmbeddedTextHtmlRender);\n//# sourceMappingURL=EmbeddedTextHtmlRender.js.map\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _CustomTimeRanges=require('../../utils/CustomTimeRanges');var _CustomTimeRanges2=_interopRequireDefault(_CustomTimeRanges);function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}function RangeController(config){config=config||{};var useWallClockTime=false;var context=this.context;var instance=void 0,ranges=void 0;var mediaElement=config.mediaElement;function initialize(rs){if(rs&&rs.length){rs.forEach(function(r){var start=r.starttime;var end=start+r.duration;ranges.add(start,end);});useWallClockTime=!!rs[0]._useWallClockTime;}}function reset(){ranges.clear();}function setup(){ranges=(0,_CustomTimeRanges2.default)(context).create();}function isEnabled(){var numRanges=ranges.length;var time=void 0;if(!numRanges){return true;}// When not present, DASH Metrics reporting is requested\n// for the whole duration of the content.\ntime=useWallClockTime?new Date().getTime()/1000:mediaElement.currentTime;for(var i=0;i<numRanges;i+=1){var start=ranges.start(i);var end=ranges.end(i);if(start<=time&&time<end){return true;}}return false;}instance={initialize:initialize,reset:reset,isEnabled:isEnabled};setup();return instance;}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n */RangeController.__dashjs_factory_name='RangeController';exports.default=dashjs.FactoryMaker.getClassFactory(RangeController);/* jshint ignore:line */\n//# sourceMappingURL=RangeController.js.map\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _createClass=function(){function defineProperties(target,props){for(var i=0;i<props.length;i++){var descriptor=props[i];descriptor.enumerable=descriptor.enumerable||false;descriptor.configurable=true;if(\"value\"in descriptor)descriptor.writable=true;Object.defineProperty(target,descriptor.key,descriptor);}}return function(Constructor,protoProps,staticProps){if(protoProps)defineProperties(Constructor.prototype,protoProps);if(staticProps)defineProperties(Constructor,staticProps);return Constructor;};}();function _classCallCheck(instance,Constructor){if(!(instance instanceof Constructor)){throw new TypeError(\"Cannot call a class as a function\");}}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n *//**\n * Metrics Constants declaration\n * @class\n * @ignore\n */var MetricsConstants=function(){_createClass(MetricsConstants,[{key:'init',value:function init(){this.TCP_CONNECTION='TcpList';this.HTTP_REQUEST='HttpList';this.TRACK_SWITCH='RepSwitchList';this.BUFFER_LEVEL='BufferLevel';this.BUFFER_LOADED='bufferLoaded';this.ABANDON_LOAD='abandonload';this.ALLOW_LOAD='allowload';this.BUFFER_EMPTY='bufferStalled';this.BUFFER_STATE='BufferState';this.DVR_INFO='DVRInfo';this.DROPPED_FRAMES='DroppedFrames';this.SCHEDULING_INFO='SchedulingInfo';this.REQUESTS_QUEUE='RequestsQueue';this.MANIFEST_UPDATE='ManifestUpdate';this.MANIFEST_UPDATE_STREAM_INFO='ManifestUpdatePeriodInfo';this.MANIFEST_UPDATE_TRACK_INFO='ManifestUpdateRepresentationInfo';this.PLAY_LIST='PlayList';this.DVB_ERRORS='DVBErrors';}}]);function MetricsConstants(){_classCallCheck(this,MetricsConstants);this.init();}return MetricsConstants;}();var constants=new MetricsConstants();exports.default=constants;\n//# sourceMappingURL=MetricsConstants.js.map\n","var anObject = require('../internals/an-object');\nvar aFunction = require('../internals/a-function');\nvar wellKnownSymbol = require('../internals/well-known-symbol');\n\nvar SPECIES = wellKnownSymbol('species');\n\n// `SpeciesConstructor` abstract operation\n// https://tc39.github.io/ecma262/#sec-speciesconstructor\nmodule.exports = function (O, defaultConstructor) {\n  var C = anObject(O).constructor;\n  var S;\n  return C === undefined || (S = anObject(C)[SPECIES]) == undefined ? defaultConstructor : aFunction(S);\n};\n","var fails = require('../internals/fails');\n\nmodule.exports = !!Object.getOwnPropertySymbols && !fails(function () {\n  // Chrome 38 Symbol has incorrect toString conversion\n  // eslint-disable-next-line no-undef\n  return !String(Symbol());\n});\n","\"use strict\";Object.defineProperty(exports,\"__esModule\",{value:true});function _classCallCheck(instance,Constructor){if(!(instance instanceof Constructor)){throw new TypeError(\"Cannot call a class as a function\");}}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n *//**\n * @class\n * @ignore\n */var RepresentationInfo=function RepresentationInfo(){_classCallCheck(this,RepresentationInfo);this.id=null;this.quality=null;this.DVRWindow=null;this.fragmentDuration=null;this.mediaInfo=null;this.MSETimeOffset=null;};exports.default=RepresentationInfo;\n//# sourceMappingURL=RepresentationInfo.js.map\n","'use strict';\n\nvar utils = require('../utils');\n\n/**\n * Config-specific merge-function which creates a new config-object\n * by merging two configuration objects together.\n *\n * @param {Object} config1\n * @param {Object} config2\n * @returns {Object} New object resulting from merging config2 to config1\n */\nmodule.exports = function mergeConfig(config1, config2) {\n  // eslint-disable-next-line no-param-reassign\n  config2 = config2 || {};\n  var config = {};\n\n  var valueFromConfig2Keys = ['url', 'method', 'data'];\n  var mergeDeepPropertiesKeys = ['headers', 'auth', 'proxy', 'params'];\n  var defaultToConfig2Keys = [\n    'baseURL', 'transformRequest', 'transformResponse', 'paramsSerializer',\n    'timeout', 'timeoutMessage', 'withCredentials', 'adapter', 'responseType', 'xsrfCookieName',\n    'xsrfHeaderName', 'onUploadProgress', 'onDownloadProgress', 'decompress',\n    'maxContentLength', 'maxBodyLength', 'maxRedirects', 'transport', 'httpAgent',\n    'httpsAgent', 'cancelToken', 'socketPath', 'responseEncoding'\n  ];\n  var directMergeKeys = ['validateStatus'];\n\n  function getMergedValue(target, source) {\n    if (utils.isPlainObject(target) && utils.isPlainObject(source)) {\n      return utils.merge(target, source);\n    } else if (utils.isPlainObject(source)) {\n      return utils.merge({}, source);\n    } else if (utils.isArray(source)) {\n      return source.slice();\n    }\n    return source;\n  }\n\n  function mergeDeepProperties(prop) {\n    if (!utils.isUndefined(config2[prop])) {\n      config[prop] = getMergedValue(config1[prop], config2[prop]);\n    } else if (!utils.isUndefined(config1[prop])) {\n      config[prop] = getMergedValue(undefined, config1[prop]);\n    }\n  }\n\n  utils.forEach(valueFromConfig2Keys, function valueFromConfig2(prop) {\n    if (!utils.isUndefined(config2[prop])) {\n      config[prop] = getMergedValue(undefined, config2[prop]);\n    }\n  });\n\n  utils.forEach(mergeDeepPropertiesKeys, mergeDeepProperties);\n\n  utils.forEach(defaultToConfig2Keys, function defaultToConfig2(prop) {\n    if (!utils.isUndefined(config2[prop])) {\n      config[prop] = getMergedValue(undefined, config2[prop]);\n    } else if (!utils.isUndefined(config1[prop])) {\n      config[prop] = getMergedValue(undefined, config1[prop]);\n    }\n  });\n\n  utils.forEach(directMergeKeys, function merge(prop) {\n    if (prop in config2) {\n      config[prop] = getMergedValue(config1[prop], config2[prop]);\n    } else if (prop in config1) {\n      config[prop] = getMergedValue(undefined, config1[prop]);\n    }\n  });\n\n  var axiosKeys = valueFromConfig2Keys\n    .concat(mergeDeepPropertiesKeys)\n    .concat(defaultToConfig2Keys)\n    .concat(directMergeKeys);\n\n  var otherKeys = Object\n    .keys(config1)\n    .concat(Object.keys(config2))\n    .filter(function filterAxiosKeys(key) {\n      return axiosKeys.indexOf(key) === -1;\n    });\n\n  utils.forEach(otherKeys, mergeDeepProperties);\n\n  return config;\n};\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _ProtectionKeyController=require('../controllers/ProtectionKeyController');var _ProtectionKeyController2=_interopRequireDefault(_ProtectionKeyController);var _NeedKey=require('../vo/NeedKey');var _NeedKey2=_interopRequireDefault(_NeedKey);var _DashJSError=require('../../vo/DashJSError');var _DashJSError2=_interopRequireDefault(_DashJSError);var _KeyMessage=require('../vo/KeyMessage');var _KeyMessage2=_interopRequireDefault(_KeyMessage);var _KeySystemConfiguration=require('../vo/KeySystemConfiguration');var _KeySystemConfiguration2=_interopRequireDefault(_KeySystemConfiguration);var _KeySystemAccess=require('../vo/KeySystemAccess');var _KeySystemAccess2=_interopRequireDefault(_KeySystemAccess);var _ProtectionErrors=require('../errors/ProtectionErrors');var _ProtectionErrors2=_interopRequireDefault(_ProtectionErrors);function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}function ProtectionModel_01b(config){config=config||{};var context=this.context;var eventBus=config.eventBus;//Need to pass in here so we can use same instance since this is optional module\nvar events=config.events;var debug=config.debug;var api=config.api;var errHandler=config.errHandler;var instance=void 0,logger=void 0,videoElement=void 0,keySystem=void 0,protectionKeyController=void 0,// With this version of the EME APIs, sessionIDs are not assigned to\n// sessions until the first key message is received.  We are assuming\n// that in the case of multiple sessions, key messages will be received\n// in the order that generateKeyRequest() is called.\n// Holding spot for newly-created sessions until we determine whether or\n// not the CDM supports sessionIDs\npendingSessions=void 0,// List of sessions that have been initialized.  Only the first position will\n// be used in the case that the CDM does not support sessionIDs\nsessions=void 0,// Not all CDMs support the notion of sessionIDs.  Without sessionIDs\n// there is no way for us to differentiate between sessions, therefore\n// we must only allow a single session.  Once we receive the first key\n// message we can set this flag to determine if more sessions are allowed\nmoreSessionsAllowed=void 0,// This is our main event handler for all desired HTMLMediaElement events\n// related to EME.  These events are translated into our API-independent\n// versions of the same events\neventHandler=void 0;function setup(){logger=debug.getLogger(instance);videoElement=null;keySystem=null;pendingSessions=[];sessions=[];protectionKeyController=(0,_ProtectionKeyController2.default)(context).getInstance();eventHandler=createEventHandler();}function reset(){if(videoElement){removeEventListeners();}for(var i=0;i<sessions.length;i++){closeKeySession(sessions[i]);}eventBus.trigger(events.TEARDOWN_COMPLETE);}function getKeySystem(){return keySystem;}function getAllInitData(){var retVal=[];for(var i=0;i<pendingSessions.length;i++){retVal.push(pendingSessions[i].initData);}for(var _i=0;_i<sessions.length;_i++){retVal.push(sessions[_i].initData);}return retVal;}function requestKeySystemAccess(ksConfigurations){var ve=videoElement;if(!ve){// Must have a video element to do this capability tests\nve=document.createElement('video');}// Try key systems in order, first one with supported key system configuration\n// is used\nvar found=false;for(var ksIdx=0;ksIdx<ksConfigurations.length;ksIdx++){var systemString=ksConfigurations[ksIdx].ks.systemString;var configs=ksConfigurations[ksIdx].configs;var supportedAudio=null;var supportedVideo=null;// Try key system configs in order, first one with supported audio/video\n// is used\nfor(var configIdx=0;configIdx<configs.length;configIdx++){//let audios = configs[configIdx].audioCapabilities;\nvar videos=configs[configIdx].videoCapabilities;// Look for supported video container/codecs\nif(videos&&videos.length!==0){supportedVideo=[];// Indicates that we have a requested video config\nfor(var videoIdx=0;videoIdx<videos.length;videoIdx++){if(ve.canPlayType(videos[videoIdx].contentType,systemString)!==''){supportedVideo.push(videos[videoIdx]);}}}// No supported audio or video in this configuration OR we have\n// requested audio or video configuration that is not supported\nif(!supportedAudio&&!supportedVideo||supportedAudio&&supportedAudio.length===0||supportedVideo&&supportedVideo.length===0){continue;}// This configuration is supported\nfound=true;var ksConfig=new _KeySystemConfiguration2.default(supportedAudio,supportedVideo);var ks=protectionKeyController.getKeySystemBySystemString(systemString);eventBus.trigger(events.KEY_SYSTEM_ACCESS_COMPLETE,{data:new _KeySystemAccess2.default(ks,ksConfig)});break;}}if(!found){eventBus.trigger(events.KEY_SYSTEM_ACCESS_COMPLETE,{error:'Key system access denied! -- No valid audio/video content configurations detected!'});}}function selectKeySystem(keySystemAccess){keySystem=keySystemAccess.keySystem;eventBus.trigger(events.INTERNAL_KEY_SYSTEM_SELECTED);}function setMediaElement(mediaElement){if(videoElement===mediaElement){return;}// Replacing the previous element\nif(videoElement){removeEventListeners();// Close any open sessions - avoids memory leak on LG webOS 2016/2017 TVs\nfor(var i=0;i<sessions.length;i++){closeKeySession(sessions[i]);}sessions=[];}videoElement=mediaElement;// Only if we are not detaching from the existing element\nif(videoElement){videoElement.addEventListener(api.keyerror,eventHandler);videoElement.addEventListener(api.needkey,eventHandler);videoElement.addEventListener(api.keymessage,eventHandler);videoElement.addEventListener(api.keyadded,eventHandler);eventBus.trigger(events.VIDEO_ELEMENT_SELECTED);}}function createKeySession(initData/*, protData, keySystemType */){if(!keySystem){throw new Error('Can not create sessions until you have selected a key system');}// Determine if creating a new session is allowed\nif(moreSessionsAllowed||sessions.length===0){var newSession={// Implements SessionToken\nsessionID:null,initData:initData,getSessionID:function getSessionID(){return this.sessionID;},getExpirationTime:function getExpirationTime(){return NaN;},getSessionType:function getSessionType(){return'temporary';}};pendingSessions.push(newSession);// Send our request to the CDM\nvideoElement[api.generateKeyRequest](keySystem.systemString,new Uint8Array(initData));return newSession;}else{throw new Error('Multiple sessions not allowed!');}}function updateKeySession(sessionToken,message){var sessionID=sessionToken.sessionID;if(!protectionKeyController.isClearKey(keySystem)){// Send our request to the CDM\nvideoElement[api.addKey](keySystem.systemString,new Uint8Array(message),new Uint8Array(sessionToken.initData),sessionID);}else{// For clearkey, message is a ClearKeyKeySet\nfor(var i=0;i<message.keyPairs.length;i++){videoElement[api.addKey](keySystem.systemString,message.keyPairs[i].key,message.keyPairs[i].keyID,sessionID);}}}function closeKeySession(sessionToken){// Send our request to the CDM\ntry{videoElement[api.cancelKeyRequest](keySystem.systemString,sessionToken.sessionID);}catch(error){eventBus.trigger(events.KEY_SESSION_CLOSED,{data:null,error:'Error closing session ('+sessionToken.sessionID+') '+error.message});}}function setServerCertificate()/*serverCertificate*/{/* Not supported */}function loadKeySession()/*sessionID*/{/* Not supported */}function removeKeySession()/*sessionToken*/{/* Not supported */}function createEventHandler(){return{handleEvent:function handleEvent(event){var sessionToken=null;switch(event.type){case api.needkey:var initData=ArrayBuffer.isView(event.initData)?event.initData.buffer:event.initData;eventBus.trigger(events.NEED_KEY,{key:new _NeedKey2.default(initData,'cenc')});break;case api.keyerror:sessionToken=findSessionByID(sessions,event.sessionId);if(!sessionToken){sessionToken=findSessionByID(pendingSessions,event.sessionId);}if(sessionToken){var code=_ProtectionErrors2.default.MEDIA_KEYERR_CODE;var msg='';switch(event.errorCode.code){case 1:code=_ProtectionErrors2.default.MEDIA_KEYERR_UNKNOWN_CODE;msg+='MEDIA_KEYERR_UNKNOWN - '+_ProtectionErrors2.default.MEDIA_KEYERR_UNKNOWN_MESSAGE;break;case 2:code=_ProtectionErrors2.default.MEDIA_KEYERR_CLIENT_CODE;msg+='MEDIA_KEYERR_CLIENT - '+_ProtectionErrors2.default.MEDIA_KEYERR_CLIENT_MESSAGE;break;case 3:code=_ProtectionErrors2.default.MEDIA_KEYERR_SERVICE_CODE;msg+='MEDIA_KEYERR_SERVICE - '+_ProtectionErrors2.default.MEDIA_KEYERR_SERVICE_MESSAGE;break;case 4:code=_ProtectionErrors2.default.MEDIA_KEYERR_OUTPUT_CODE;msg+='MEDIA_KEYERR_OUTPUT - '+_ProtectionErrors2.default.MEDIA_KEYERR_OUTPUT_MESSAGE;break;case 5:code=_ProtectionErrors2.default.MEDIA_KEYERR_HARDWARECHANGE_CODE;msg+='MEDIA_KEYERR_HARDWARECHANGE - '+_ProtectionErrors2.default.MEDIA_KEYERR_HARDWARECHANGE_MESSAGE;break;case 6:code=_ProtectionErrors2.default.MEDIA_KEYERR_DOMAIN_CODE;msg+='MEDIA_KEYERR_DOMAIN - '+_ProtectionErrors2.default.MEDIA_KEYERR_DOMAIN_MESSAGE;break;}msg+='  System Code = '+event.systemCode;// TODO: Build error string based on key error\neventBus.trigger(events.KEY_ERROR,{data:new _DashJSError2.default(code,msg,sessionToken)});}else{logger.error('No session token found for key error');}break;case api.keyadded:sessionToken=findSessionByID(sessions,event.sessionId);if(!sessionToken){sessionToken=findSessionByID(pendingSessions,event.sessionId);}if(sessionToken){logger.debug('DRM: Key added.');eventBus.trigger(events.KEY_ADDED,{data:sessionToken});//TODO not sure anything is using sessionToken? why there?\n}else{logger.debug('No session token found for key added');}break;case api.keymessage:// If this CDM does not support session IDs, we will be limited\n// to a single session\nmoreSessionsAllowed=event.sessionId!==null&&event.sessionId!==undefined;// SessionIDs supported\nif(moreSessionsAllowed){// Attempt to find an uninitialized token with this sessionID\nsessionToken=findSessionByID(sessions,event.sessionId);if(!sessionToken&&pendingSessions.length>0){// This is the first message for our latest session, so set the\n// sessionID and add it to our list\nsessionToken=pendingSessions.shift();sessions.push(sessionToken);sessionToken.sessionID=event.sessionId;eventBus.trigger(events.KEY_SESSION_CREATED,{data:sessionToken});}}else if(pendingSessions.length>0){// SessionIDs not supported\nsessionToken=pendingSessions.shift();sessions.push(sessionToken);if(pendingSessions.length!==0){errHandler.error(new _DashJSError2.default(_ProtectionErrors2.default.MEDIA_KEY_MESSAGE_ERROR_CODE,_ProtectionErrors2.default.MEDIA_KEY_MESSAGE_ERROR_MESSAGE));}}if(sessionToken){var message=ArrayBuffer.isView(event.message)?event.message.buffer:event.message;// For ClearKey, the spec mandates that you pass this message to the\n// addKey method, so we always save it to the token since there is no\n// way to tell which key system is in use\nsessionToken.keyMessage=message;eventBus.trigger(events.INTERNAL_KEY_MESSAGE,{data:new _KeyMessage2.default(sessionToken,message,event.defaultURL)});}else{logger.warn('No session token found for key message');}break;}}};}/**\n     * Helper function to retrieve the stored session token based on a given\n     * sessionID value\n     *\n     * @param {Array} sessionArray - the array of sessions to search\n     * @param {*} sessionID - the sessionID to search for\n     * @returns {*} the session token with the given sessionID\n     */function findSessionByID(sessionArray,sessionID){if(!sessionID||!sessionArray){return null;}else{var len=sessionArray.length;for(var i=0;i<len;i++){if(sessionArray[i].sessionID==sessionID){return sessionArray[i];}}return null;}}function removeEventListeners(){videoElement.removeEventListener(api.keyerror,eventHandler);videoElement.removeEventListener(api.needkey,eventHandler);videoElement.removeEventListener(api.keymessage,eventHandler);videoElement.removeEventListener(api.keyadded,eventHandler);}instance={getAllInitData:getAllInitData,requestKeySystemAccess:requestKeySystemAccess,getKeySystem:getKeySystem,selectKeySystem:selectKeySystem,setMediaElement:setMediaElement,createKeySession:createKeySession,updateKeySession:updateKeySession,closeKeySession:closeKeySession,setServerCertificate:setServerCertificate,loadKeySession:loadKeySession,removeKeySession:removeKeySession,stop:reset,reset:reset};setup();return instance;}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n *//**\n * Initial implementation of EME\n *\n * Implemented by Google Chrome prior to v36\n *\n * @implements ProtectionModel\n * @class\n */ProtectionModel_01b.__dashjs_factory_name='ProtectionModel_01b';exports.default=dashjs.FactoryMaker.getClassFactory(ProtectionModel_01b);/* jshint ignore:line */\n//# sourceMappingURL=ProtectionModel_01b.js.map\n","function _extends() {\n  module.exports = _extends = Object.assign || function (target) {\n    for (var i = 1; i < arguments.length; i++) {\n      var source = arguments[i];\n\n      for (var key in source) {\n        if (Object.prototype.hasOwnProperty.call(source, key)) {\n          target[key] = source[key];\n        }\n      }\n    }\n\n    return target;\n  };\n\n  module.exports[\"default\"] = module.exports, module.exports.__esModule = true;\n  return _extends.apply(this, arguments);\n}\n\nmodule.exports = _extends;\nmodule.exports[\"default\"] = module.exports, module.exports.__esModule = true;","var $ = require('../internals/export');\nvar getBuiltIn = require('../internals/get-built-in');\nvar aFunction = require('../internals/a-function');\nvar anObject = require('../internals/an-object');\nvar isObject = require('../internals/is-object');\nvar create = require('../internals/object-create');\nvar bind = require('../internals/function-bind');\nvar fails = require('../internals/fails');\n\nvar nativeConstruct = getBuiltIn('Reflect', 'construct');\n\n// `Reflect.construct` method\n// https://tc39.github.io/ecma262/#sec-reflect.construct\n// MS Edge supports only 2 arguments and argumentsList argument is optional\n// FF Nightly sets third argument as `new.target`, but does not create `this` from it\nvar NEW_TARGET_BUG = fails(function () {\n  function F() { /* empty */ }\n  return !(nativeConstruct(function () { /* empty */ }, [], F) instanceof F);\n});\nvar ARGS_BUG = !fails(function () {\n  nativeConstruct(function () { /* empty */ });\n});\nvar FORCED = NEW_TARGET_BUG || ARGS_BUG;\n\n$({ target: 'Reflect', stat: true, forced: FORCED, sham: FORCED }, {\n  construct: function construct(Target, args /* , newTarget */) {\n    aFunction(Target);\n    anObject(args);\n    var newTarget = arguments.length < 3 ? Target : aFunction(arguments[2]);\n    if (ARGS_BUG && !NEW_TARGET_BUG) return nativeConstruct(Target, args, newTarget);\n    if (Target == newTarget) {\n      // w/o altered newTarget, optimization for 0-4 arguments\n      switch (args.length) {\n        case 0: return new Target();\n        case 1: return new Target(args[0]);\n        case 2: return new Target(args[0], args[1]);\n        case 3: return new Target(args[0], args[1], args[2]);\n        case 4: return new Target(args[0], args[1], args[2], args[3]);\n      }\n      // w/o altered newTarget, lot of arguments case\n      var $args = [null];\n      $args.push.apply($args, args);\n      return new (bind.apply(Target, $args))();\n    }\n    // with altered newTarget, not support built-in constructors\n    var proto = newTarget.prototype;\n    var instance = create(isObject(proto) ? proto : Object.prototype);\n    var result = Function.apply.call(Target, instance, args);\n    return isObject(result) ? result : instance;\n  }\n});\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _BaseURLTreeModel=require('../models/BaseURLTreeModel');var _BaseURLTreeModel2=_interopRequireDefault(_BaseURLTreeModel);var _BaseURLSelector=require('../utils/BaseURLSelector');var _BaseURLSelector2=_interopRequireDefault(_BaseURLSelector);var _URLUtils=require('../utils/URLUtils');var _URLUtils2=_interopRequireDefault(_URLUtils);var _BaseURL=require('../../dash/vo/BaseURL');var _BaseURL2=_interopRequireDefault(_BaseURL);var _FactoryMaker=require('../../core/FactoryMaker');var _FactoryMaker2=_interopRequireDefault(_FactoryMaker);var _EventBus=require('../../core/EventBus');var _EventBus2=_interopRequireDefault(_EventBus);var _Events=require('../../core/events/Events');var _Events2=_interopRequireDefault(_Events);function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}function BaseURLController(){var instance=void 0,adapter=void 0;var context=this.context;var eventBus=(0,_EventBus2.default)(context).getInstance();var urlUtils=(0,_URLUtils2.default)(context).getInstance();var baseURLTreeModel=void 0,baseURLSelector=void 0;function onBlackListChanged(e){baseURLTreeModel.invalidateSelectedIndexes(e.entry);}function setup(){baseURLTreeModel=(0,_BaseURLTreeModel2.default)(context).create();baseURLSelector=(0,_BaseURLSelector2.default)(context).create();eventBus.on(_Events2.default.SERVICE_LOCATION_BLACKLIST_CHANGED,onBlackListChanged,instance);}function setConfig(config){if(config.baseURLTreeModel){baseURLTreeModel=config.baseURLTreeModel;}if(config.baseURLSelector){baseURLSelector=config.baseURLSelector;}if(config.adapter){adapter=config.adapter;}}function update(manifest){baseURLTreeModel.update(manifest);baseURLSelector.chooseSelector(adapter.getIsDVB(manifest));}function resolve(path){var baseUrls=baseURLTreeModel.getForPath(path);var baseUrl=baseUrls.reduce(function(p,c){var b=baseURLSelector.select(c);if(b){if(!urlUtils.isRelative(b.url)){p.url=b.url;p.serviceLocation=b.serviceLocation;}else{p.url=urlUtils.resolve(b.url,p.url);}p.availabilityTimeOffset=b.availabilityTimeOffset;p.availabilityTimeComplete=b.availabilityTimeComplete;}else{return new _BaseURL2.default();}return p;},new _BaseURL2.default());if(!urlUtils.isRelative(baseUrl.url)){return baseUrl;}}function reset(){baseURLTreeModel.reset();baseURLSelector.reset();}function initialize(data){// report config to baseURLTreeModel and baseURLSelector\nbaseURLTreeModel.setConfig({adapter:adapter});update(data);}instance={reset:reset,initialize:initialize,resolve:resolve,setConfig:setConfig};setup();return instance;}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n */BaseURLController.__dashjs_factory_name='BaseURLController';exports.default=_FactoryMaker2.default.getClassFactory(BaseURLController);\n//# sourceMappingURL=BaseURLController.js.map\n","var toIndexedObject = require('../internals/to-indexed-object');\nvar toLength = require('../internals/to-length');\nvar toAbsoluteIndex = require('../internals/to-absolute-index');\n\n// `Array.prototype.{ indexOf, includes }` methods implementation\nvar createMethod = function (IS_INCLUDES) {\n  return function ($this, el, fromIndex) {\n    var O = toIndexedObject($this);\n    var length = toLength(O.length);\n    var index = toAbsoluteIndex(fromIndex, length);\n    var value;\n    // Array#includes uses SameValueZero equality algorithm\n    // eslint-disable-next-line no-self-compare\n    if (IS_INCLUDES && el != el) while (length > index) {\n      value = O[index++];\n      // eslint-disable-next-line no-self-compare\n      if (value != value) return true;\n    // Array#indexOf ignores holes, Array#includes - not\n    } else for (;length > index; index++) {\n      if ((IS_INCLUDES || index in O) && O[index] === el) return IS_INCLUDES || index || 0;\n    } return !IS_INCLUDES && -1;\n  };\n};\n\nmodule.exports = {\n  // `Array.prototype.includes` method\n  // https://tc39.github.io/ecma262/#sec-array.prototype.includes\n  includes: createMethod(true),\n  // `Array.prototype.indexOf` method\n  // https://tc39.github.io/ecma262/#sec-array.prototype.indexof\n  indexOf: createMethod(false)\n};\n","'use strict';\nvar bind = require('../internals/function-bind-context');\nvar toObject = require('../internals/to-object');\nvar callWithSafeIterationClosing = require('../internals/call-with-safe-iteration-closing');\nvar isArrayIteratorMethod = require('../internals/is-array-iterator-method');\nvar toLength = require('../internals/to-length');\nvar createProperty = require('../internals/create-property');\nvar getIteratorMethod = require('../internals/get-iterator-method');\n\n// `Array.from` method implementation\n// https://tc39.github.io/ecma262/#sec-array.from\nmodule.exports = function from(arrayLike /* , mapfn = undefined, thisArg = undefined */) {\n  var O = toObject(arrayLike);\n  var C = typeof this == 'function' ? this : Array;\n  var argumentsLength = arguments.length;\n  var mapfn = argumentsLength > 1 ? arguments[1] : undefined;\n  var mapping = mapfn !== undefined;\n  var iteratorMethod = getIteratorMethod(O);\n  var index = 0;\n  var length, result, step, iterator, next, value;\n  if (mapping) mapfn = bind(mapfn, argumentsLength > 2 ? arguments[2] : undefined, 2);\n  // if the target is not iterable or it's an array with the default iterator - use a simple case\n  if (iteratorMethod != undefined && !(C == Array && isArrayIteratorMethod(iteratorMethod))) {\n    iterator = iteratorMethod.call(O);\n    next = iterator.next;\n    result = new C();\n    for (;!(step = next.call(iterator)).done; index++) {\n      value = mapping ? callWithSafeIterationClosing(iterator, mapfn, [step.value, index], true) : step.value;\n      createProperty(result, index, value);\n    }\n  } else {\n    length = toLength(O.length);\n    result = new C(length);\n    for (;length > index; index++) {\n      value = mapping ? mapfn(O[index], index) : O[index];\n      createProperty(result, index, value);\n    }\n  }\n  result.length = index;\n  return result;\n};\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _Constants=require('../constants/Constants');var _Constants2=_interopRequireDefault(_Constants);var _MetricsConstants=require('../constants/MetricsConstants');var _MetricsConstants2=_interopRequireDefault(_MetricsConstants);var _FragmentModel=require('../models/FragmentModel');var _FragmentModel2=_interopRequireDefault(_FragmentModel);var _SourceBufferSink=require('../SourceBufferSink');var _SourceBufferSink2=_interopRequireDefault(_SourceBufferSink);var _PreBufferSink=require('../PreBufferSink');var _PreBufferSink2=_interopRequireDefault(_PreBufferSink);var _AbrController=require('./AbrController');var _AbrController2=_interopRequireDefault(_AbrController);var _MediaController=require('./MediaController');var _MediaController2=_interopRequireDefault(_MediaController);var _EventBus=require('../../core/EventBus');var _EventBus2=_interopRequireDefault(_EventBus);var _Events=require('../../core/events/Events');var _Events2=_interopRequireDefault(_Events);var _BoxParser=require('../utils/BoxParser');var _BoxParser2=_interopRequireDefault(_BoxParser);var _FactoryMaker=require('../../core/FactoryMaker');var _FactoryMaker2=_interopRequireDefault(_FactoryMaker);var _Debug=require('../../core/Debug');var _Debug2=_interopRequireDefault(_Debug);var _InitCache=require('../utils/InitCache');var _InitCache2=_interopRequireDefault(_InitCache);var _DashJSError=require('../vo/DashJSError');var _DashJSError2=_interopRequireDefault(_DashJSError);var _Errors=require('../../core/errors/Errors');var _Errors2=_interopRequireDefault(_Errors);var _HTTPRequest=require('../vo/metrics/HTTPRequest');function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n */var STALL_THRESHOLD=0.5;var BUFFER_END_THRESHOLD=0.5;var BUFFER_RANGE_CALCULATION_THRESHOLD=0.01;var QUOTA_EXCEEDED_ERROR_CODE=22;var BUFFER_CONTROLLER_TYPE='BufferController';function BufferController(config){config=config||{};var context=this.context;var eventBus=(0,_EventBus2.default)(context).getInstance();var dashMetrics=config.dashMetrics;var errHandler=config.errHandler;var streamController=config.streamController;var mediaController=config.mediaController;var adapter=config.adapter;var textController=config.textController;var abrController=config.abrController;var playbackController=config.playbackController;var type=config.type;var streamProcessor=config.streamProcessor;var settings=config.settings;var instance=void 0,logger=void 0,requiredQuality=void 0,isBufferingCompleted=void 0,bufferLevel=void 0,criticalBufferLevel=void 0,mediaSource=void 0,maxAppendedIndex=void 0,lastIndex=void 0,buffer=void 0,dischargeBuffer=void 0,bufferState=void 0,appendedBytesInfo=void 0,wallclockTicked=void 0,isPruningInProgress=void 0,isQuotaExceeded=void 0,initCache=void 0,seekStartTime=void 0,seekClearedBufferingCompleted=void 0,pendingPruningRanges=void 0,bufferResetInProgress=void 0,mediaChunk=void 0;function setup(){logger=(0,_Debug2.default)(context).getInstance().getLogger(instance);initCache=(0,_InitCache2.default)(context).getInstance();resetInitialSettings();}function getBufferControllerType(){return BUFFER_CONTROLLER_TYPE;}function initialize(Source){setMediaSource(Source);requiredQuality=abrController.getQualityFor(type);eventBus.on(_Events2.default.DATA_UPDATE_COMPLETED,onDataUpdateCompleted,this);eventBus.on(_Events2.default.INIT_FRAGMENT_LOADED,onInitFragmentLoaded,this);eventBus.on(_Events2.default.MEDIA_FRAGMENT_LOADED,onMediaFragmentLoaded,this);eventBus.on(_Events2.default.QUALITY_CHANGE_REQUESTED,onQualityChanged,this);eventBus.on(_Events2.default.STREAM_COMPLETED,onStreamCompleted,this);eventBus.on(_Events2.default.PLAYBACK_PLAYING,onPlaybackPlaying,this);eventBus.on(_Events2.default.PLAYBACK_PROGRESS,onPlaybackProgression,this);eventBus.on(_Events2.default.PLAYBACK_TIME_UPDATED,onPlaybackProgression,this);eventBus.on(_Events2.default.PLAYBACK_RATE_CHANGED,onPlaybackRateChanged,this);eventBus.on(_Events2.default.PLAYBACK_SEEKING,onPlaybackSeeking,this);eventBus.on(_Events2.default.PLAYBACK_SEEKED,onPlaybackSeeked,this);eventBus.on(_Events2.default.PLAYBACK_STALLED,onPlaybackStalled,this);eventBus.on(_Events2.default.WALLCLOCK_TIME_UPDATED,onWallclockTimeUpdated,this);eventBus.on(_Events2.default.CURRENT_TRACK_CHANGED,onCurrentTrackChanged,this,_EventBus2.default.EVENT_PRIORITY_HIGH);eventBus.on(_Events2.default.SOURCEBUFFER_REMOVE_COMPLETED,onRemoved,this);}function createBuffer(mediaInfo,oldBuffers){if(!initCache||!mediaInfo||!streamProcessor)return null;if(mediaSource){try{if(oldBuffers&&oldBuffers[type]){buffer=(0,_SourceBufferSink2.default)(context).create(mediaSource,mediaInfo,onAppended.bind(this),settings.get().streaming.useAppendWindowEnd,oldBuffers[type]);}else{buffer=(0,_SourceBufferSink2.default)(context).create(mediaSource,mediaInfo,onAppended.bind(this),settings.get().streaming.useAppendWindowEnd);}if(typeof buffer.getBuffer().initialize==='function'){buffer.getBuffer().initialize(type,streamProcessor);}}catch(e){logger.fatal('Caught error on create SourceBuffer: '+e);errHandler.error(new _DashJSError2.default(_Errors2.default.MEDIASOURCE_TYPE_UNSUPPORTED_CODE,_Errors2.default.MEDIASOURCE_TYPE_UNSUPPORTED_MESSAGE+type));}}else{buffer=(0,_PreBufferSink2.default)(context).create(onAppended.bind(this));}updateBufferTimestampOffset(streamProcessor.getRepresentationInfo(requiredQuality).MSETimeOffset);return buffer;}function dischargePreBuffer(){if(buffer&&dischargeBuffer&&typeof dischargeBuffer.discharge==='function'){var ranges=dischargeBuffer.getAllBufferRanges();if(ranges.length>0){var rangeStr='Beginning '+type+'PreBuffer discharge, adding buffer for:';for(var i=0;i<ranges.length;i++){rangeStr+=' start: '+ranges.start(i)+', end: '+ranges.end(i)+';';}logger.debug(rangeStr);}else{logger.debug('PreBuffer discharge requested, but there were no media segments in the PreBuffer.');}var chunks=dischargeBuffer.discharge();var lastInit=null;for(var j=0;j<chunks.length;j++){var chunk=chunks[j];var initChunk=initCache.extract(chunk.streamId,chunk.representationId);if(initChunk){if(lastInit!==initChunk){buffer.append(initChunk);lastInit=initChunk;}buffer.append(chunk);//TODO Think about supressing buffer events the second time round after a discharge?\n}}dischargeBuffer.reset();dischargeBuffer=null;}}function isActive(){return streamProcessor&&streamController&&streamProcessor.getStreamInfo();}function onInitFragmentLoaded(e){if(e.fragmentModel!==streamProcessor.getFragmentModel())return;logger.info('Init fragment finished loading saving to',type+'\\'s init cache');initCache.save(e.chunk);logger.debug('Append Init fragment',type,' with representationId:',e.chunk.representationId,' and quality:',e.chunk.quality,', data size:',e.chunk.bytes.byteLength);appendToBuffer(e.chunk);}function switchInitData(streamId,representationId,bufferResetEnabled){var chunk=initCache.extract(streamId,representationId);bufferResetInProgress=bufferResetEnabled===true?bufferResetEnabled:false;if(chunk){logger.info('Append Init fragment',type,' with representationId:',chunk.representationId,' and quality:',chunk.quality,', data size:',chunk.bytes.byteLength);appendToBuffer(chunk);}else{eventBus.trigger(_Events2.default.INIT_REQUESTED,{sender:instance});}}function onMediaFragmentLoaded(e){if(e.fragmentModel!==streamProcessor.getFragmentModel())return;var chunk=e.chunk;var bytes=chunk.bytes;var quality=chunk.quality;var currentRepresentation=streamProcessor.getRepresentationInfo(quality);var representationController=streamProcessor.getRepresentationController();var voRepresentation=representationController&&currentRepresentation?representationController.getRepresentationForQuality(currentRepresentation.quality):null;var eventStreamMedia=adapter.getEventsFor(currentRepresentation.mediaInfo);var eventStreamTrack=adapter.getEventsFor(currentRepresentation,voRepresentation);if(eventStreamMedia&&eventStreamMedia.length>0||eventStreamTrack&&eventStreamTrack.length>0){var request=streamProcessor.getFragmentModel().getRequests({state:_FragmentModel2.default.FRAGMENT_MODEL_EXECUTED,quality:quality,index:chunk.index})[0];var events=handleInbandEvents(bytes,request,eventStreamMedia,eventStreamTrack);streamProcessor.addInbandEvents(events);}if(bufferResetInProgress){mediaChunk=chunk;var ranges=buffer&&buffer.getAllBufferRanges();if(ranges&&ranges.length>0&&playbackController.getTimeToStreamEnd()>STALL_THRESHOLD){logger.debug('Clearing buffer because track changed - '+(ranges.end(ranges.length-1)+BUFFER_END_THRESHOLD));clearBuffers([{start:0,end:ranges.end(ranges.length-1)+BUFFER_END_THRESHOLD,force:true// Force buffer removal even when buffering is completed and MediaSource is ended\n}]);}}else{appendToBuffer(chunk);}}function appendToBuffer(chunk){buffer.append(chunk);if(chunk.mediaInfo.type===_Constants2.default.VIDEO){eventBus.trigger(_Events2.default.VIDEO_CHUNK_RECEIVED,{chunk:chunk});}}function showBufferRanges(ranges){if(ranges&&ranges.length>0){for(var i=0,len=ranges.length;i<len;i++){logger.debug('Buffered Range',ranges.start(i),' - ',ranges.end(i),' currentTime = ',playbackController.getTime());}}}function onAppended(e){if(e.error){if(e.error.code===QUOTA_EXCEEDED_ERROR_CODE){isQuotaExceeded=true;criticalBufferLevel=getTotalBufferedTime()*0.8;logger.warn('Quota exceeded, Critical Buffer: '+criticalBufferLevel);if(criticalBufferLevel>0){// recalculate buffer lengths to keep (bufferToKeep, bufferAheadToKeep, bufferTimeAtTopQuality) according to criticalBufferLevel\nvar bufferToKeep=Math.max(0.2*criticalBufferLevel,1);var bufferAhead=criticalBufferLevel-bufferToKeep;var s={streaming:{bufferToKeep:parseFloat(bufferToKeep.toFixed(5)),bufferAheadToKeep:parseFloat(bufferAhead.toFixed(5))}};settings.update(s);}}if(e.error.code===QUOTA_EXCEEDED_ERROR_CODE||!hasEnoughSpaceToAppend()){logger.warn('Clearing playback buffer to overcome quota exceed situation');eventBus.trigger(_Events2.default.QUOTA_EXCEEDED,{sender:instance,criticalBufferLevel:criticalBufferLevel});//Tells ScheduleController to stop scheduling.\npruneAllSafely();// Then we clear the buffer and onCleared event will tell ScheduleController to start scheduling again.\n}return;}isQuotaExceeded=false;appendedBytesInfo=e.chunk;if(appendedBytesInfo&&!isNaN(appendedBytesInfo.index)){maxAppendedIndex=Math.max(appendedBytesInfo.index,maxAppendedIndex);checkIfBufferingCompleted();}var ranges=buffer.getAllBufferRanges();if(appendedBytesInfo.segmentType===_HTTPRequest.HTTPRequest.MEDIA_SEGMENT_TYPE){showBufferRanges(ranges);onPlaybackProgression();}else{if(bufferResetInProgress){var currentTime=playbackController.getTime();logger.debug('AppendToBuffer seek target should be '+currentTime);streamProcessor.getScheduleController().setSeekTarget(currentTime);streamProcessor.setIndexHandlerTime(currentTime);}}var dataEvent={sender:instance,quality:appendedBytesInfo.quality,startTime:appendedBytesInfo.start,index:appendedBytesInfo.index,bufferedRanges:ranges};if(appendedBytesInfo&&!appendedBytesInfo.endFragment){eventBus.trigger(_Events2.default.BYTES_APPENDED,dataEvent);}else if(appendedBytesInfo){eventBus.trigger(_Events2.default.BYTES_APPENDED_END_FRAGMENT,dataEvent);}}function onQualityChanged(e){if(requiredQuality===e.newQuality||type!==e.mediaType||streamProcessor.getStreamInfo().id!==e.streamInfo.id)return;updateBufferTimestampOffset(streamProcessor.getRepresentationInfo(e.newQuality).MSETimeOffset);requiredQuality=e.newQuality;}//**********************************************************************\n// START Buffer Level, State & Sufficiency Handling.\n//**********************************************************************\nfunction onPlaybackSeeking()/*e*/{if(isBufferingCompleted){seekClearedBufferingCompleted=true;isBufferingCompleted=false;//a seek command has occured, reset lastIndex value, it will be set next time that onStreamCompleted will be called.\nlastIndex=Number.POSITIVE_INFINITY;}if(type!==_Constants2.default.FRAGMENTED_TEXT){// remove buffer after seeking operations\npruneAllSafely();}else{onPlaybackProgression();}}function onPlaybackSeeked(){setSeekStartTime(undefined);}// Prune full buffer but what is around current time position\nfunction pruneAllSafely(){buffer.waitForUpdateEnd(function(){var ranges=getAllRangesWithSafetyFactor();if(!ranges||ranges.length===0){onPlaybackProgression();}clearBuffers(ranges);});}// Get all buffer ranges but a range around current time position\nfunction getAllRangesWithSafetyFactor(){var clearRanges=[];var ranges=buffer.getAllBufferRanges();if(!ranges||ranges.length===0){return clearRanges;}var currentTime=playbackController.getTime();var endOfBuffer=ranges.end(ranges.length-1)+BUFFER_END_THRESHOLD;var currentTimeRequest=streamProcessor.getFragmentModel().getRequests({state:_FragmentModel2.default.FRAGMENT_MODEL_EXECUTED,time:currentTime,threshold:BUFFER_RANGE_CALCULATION_THRESHOLD})[0];// There is no request in current time position yet. Let's remove everything\nif(!currentTimeRequest){logger.debug('getAllRangesWithSafetyFactor - No request found in current time position, removing full buffer 0 -',endOfBuffer);clearRanges.push({start:0,end:endOfBuffer});}else{// Build buffer behind range. To avoid pruning time around current time position,\n// we include fragment right behind the one in current time position\nvar behindRange={start:0,end:currentTimeRequest.startTime-STALL_THRESHOLD};var prevReq=streamProcessor.getFragmentModel().getRequests({state:_FragmentModel2.default.FRAGMENT_MODEL_EXECUTED,time:currentTimeRequest.startTime-currentTimeRequest.duration/2,threshold:BUFFER_RANGE_CALCULATION_THRESHOLD})[0];if(prevReq&&prevReq.startTime!=currentTimeRequest.startTime){behindRange.end=prevReq.startTime;}if(behindRange.start<behindRange.end&&behindRange.end>ranges.start(0)){clearRanges.push(behindRange);}// Build buffer ahead range. To avoid pruning time around current time position,\n// we include fragment right after the one in current time position\nvar aheadRange={start:currentTimeRequest.startTime+currentTimeRequest.duration+STALL_THRESHOLD,end:endOfBuffer};var nextReq=streamProcessor.getFragmentModel().getRequests({state:_FragmentModel2.default.FRAGMENT_MODEL_EXECUTED,time:currentTimeRequest.startTime+currentTimeRequest.duration+STALL_THRESHOLD,threshold:BUFFER_RANGE_CALCULATION_THRESHOLD})[0];if(nextReq&&nextReq.startTime!==currentTimeRequest.startTime){aheadRange.start=nextReq.startTime+nextReq.duration+STALL_THRESHOLD;}if(aheadRange.start<aheadRange.end&&aheadRange.start<endOfBuffer){clearRanges.push(aheadRange);}}return clearRanges;}function getWorkingTime(){// This function returns current working time for buffer (either start time or current time if playback has started)\nvar ret=playbackController.getTime();if(seekStartTime){// if there is a seek start time, the first buffer data will be available on maximum value between first buffer range value and seek start time.\nvar ranges=buffer.getAllBufferRanges();if(ranges&&ranges.length){ret=Math.max(ranges.start(0),seekStartTime);}}return ret;}function onPlaybackProgression(){if(!bufferResetInProgress||type===_Constants2.default.FRAGMENTED_TEXT&&textController.isTextEnabled()){updateBufferLevel();addBufferMetrics();}}function onPlaybackStalled(){checkIfSufficientBuffer();}function onPlaybackPlaying(){if(seekStartTime!==undefined){setSeekStartTime(undefined);}checkIfSufficientBuffer();}function getRangeAt(time,tolerance){var ranges=buffer.getAllBufferRanges();var start=0;var end=0;var firstStart=null;var lastEnd=null;var gap=0;var len=void 0,i=void 0;var toler=tolerance||0.15;if(ranges!==null&&ranges!==undefined){for(i=0,len=ranges.length;i<len;i++){start=ranges.start(i);end=ranges.end(i);if(firstStart===null){gap=Math.abs(start-time);if(time>=start&&time<end){// start the range\nfirstStart=start;lastEnd=end;}else if(gap<=toler){// start the range even though the buffer does not contain time 0\nfirstStart=start;lastEnd=end;}}else{gap=start-lastEnd;if(gap<=toler){// the discontinuity is smaller than the tolerance, combine the ranges\nlastEnd=end;}else{break;}}}if(firstStart!==null){return{start:firstStart,end:lastEnd};}}return null;}function getBufferLength(time,tolerance){var range=void 0,length=void 0;range=getRangeAt(time,tolerance);if(range===null){length=0;}else{length=range.end-time;}return length;}function updateBufferLevel(){if(playbackController){bufferLevel=getBufferLength(getWorkingTime()||0);eventBus.trigger(_Events2.default.BUFFER_LEVEL_UPDATED,{sender:instance,bufferLevel:bufferLevel});checkIfSufficientBuffer();}}function addBufferMetrics(){if(!isActive())return;dashMetrics.addBufferState(type,bufferState,streamProcessor.getScheduleController().getBufferTarget());dashMetrics.addBufferLevel(type,new Date(),bufferLevel*1000);}function checkIfBufferingCompleted(){var isLastIdxAppended=maxAppendedIndex>=lastIndex-1;// Handles 0 and non 0 based request index\nif(isLastIdxAppended&&!isBufferingCompleted&&buffer.discharge===undefined){isBufferingCompleted=true;logger.debug('checkIfBufferingCompleted trigger BUFFERING_COMPLETED');eventBus.trigger(_Events2.default.BUFFERING_COMPLETED,{sender:instance,streamInfo:streamProcessor.getStreamInfo()});}}function checkIfSufficientBuffer(){// No need to check buffer if type is not audio or video (for example if several errors occur during text parsing, so that the buffer cannot be filled, no error must occur on video playback)\nif(type!==_Constants2.default.AUDIO&&type!==_Constants2.default.VIDEO)return;if(seekClearedBufferingCompleted&&!isBufferingCompleted&&bufferLevel>0&&playbackController&&playbackController.getTimeToStreamEnd()-bufferLevel<STALL_THRESHOLD){seekClearedBufferingCompleted=false;isBufferingCompleted=true;logger.debug('checkIfSufficientBuffer trigger BUFFERING_COMPLETED');eventBus.trigger(_Events2.default.BUFFERING_COMPLETED,{sender:instance,streamInfo:streamProcessor.getStreamInfo()});}// When the player is working in low latency mode, the buffer is often below STALL_THRESHOLD.\n// So, when in low latency mode, change dash.js behavior so it notifies a stall just when\n// buffer reach 0 seconds\nif((!settings.get().streaming.lowLatencyEnabled&&bufferLevel<STALL_THRESHOLD||bufferLevel===0)&&!isBufferingCompleted){notifyBufferStateChanged(_MetricsConstants2.default.BUFFER_EMPTY);}else{if(isBufferingCompleted||bufferLevel>=streamProcessor.getStreamInfo().manifestInfo.minBufferTime){notifyBufferStateChanged(_MetricsConstants2.default.BUFFER_LOADED);}}}function notifyBufferStateChanged(state){if(bufferState===state||state===_MetricsConstants2.default.BUFFER_EMPTY&&playbackController.getTime()===0||// Don't trigger BUFFER_EMPTY if it's initial loading\ntype===_Constants2.default.FRAGMENTED_TEXT&&!textController.isTextEnabled()){return;}bufferState=state;addBufferMetrics();eventBus.trigger(_Events2.default.BUFFER_LEVEL_STATE_CHANGED,{sender:instance,state:state,mediaType:type,streamInfo:streamProcessor.getStreamInfo()});eventBus.trigger(state===_MetricsConstants2.default.BUFFER_LOADED?_Events2.default.BUFFER_LOADED:_Events2.default.BUFFER_EMPTY,{mediaType:type});logger.debug(state===_MetricsConstants2.default.BUFFER_LOADED?'Got enough buffer to start':'Waiting for more buffer before starting playback');}function handleInbandEvents(data,request,mediaInbandEvents,trackInbandEvents){var fragmentStartTime=Math.max(!request||isNaN(request.startTime)?0:request.startTime,0);var eventStreams=[];var events=[];/* Extract the possible schemeIdUri : If a DASH client detects an event message box with a scheme that is not defined in MPD, the client is expected to ignore it */var inbandEvents=mediaInbandEvents.concat(trackInbandEvents);for(var i=0,ln=inbandEvents.length;i<ln;i++){eventStreams[inbandEvents[i].schemeIdUri+'/'+inbandEvents[i].value]=inbandEvents[i];}var isoFile=(0,_BoxParser2.default)(context).getInstance().parse(data);var eventBoxes=isoFile.getBoxes('emsg');for(var _i=0,_ln=eventBoxes.length;_i<_ln;_i++){var event=adapter.getEvent(eventBoxes[_i],eventStreams,fragmentStartTime);if(event){events.push(event);}}return events;}/* prune buffer on our own in background to avoid browsers pruning buffer silently */function pruneBuffer(){if(!buffer||type===_Constants2.default.FRAGMENTED_TEXT){return;}if(!isBufferingCompleted){clearBuffers(getClearRanges());}}function getClearRanges(){var clearRanges=[];var ranges=buffer.getAllBufferRanges();if(!ranges||ranges.length===0){return clearRanges;}var currentTime=playbackController.getTime();var rangeToKeep={start:Math.max(0,currentTime-settings.get().streaming.bufferToKeep),end:currentTime+settings.get().streaming.bufferAheadToKeep};var currentTimeRequest=streamProcessor.getFragmentModel().getRequests({state:_FragmentModel2.default.FRAGMENT_MODEL_EXECUTED,time:currentTime,threshold:BUFFER_RANGE_CALCULATION_THRESHOLD})[0];// Ensure we keep full range of current fragment\nif(currentTimeRequest){rangeToKeep.start=Math.min(currentTimeRequest.startTime,rangeToKeep.start);rangeToKeep.end=Math.max(currentTimeRequest.startTime+currentTimeRequest.duration,rangeToKeep.end);}else if(currentTime===0&&playbackController.getIsDynamic()){// Don't prune before the live stream starts, it messes with low latency\nreturn[];}if(ranges.start(0)<=rangeToKeep.start){var behindRange={start:0,end:rangeToKeep.start};for(var i=0;i<ranges.length&&ranges.end(i)<=rangeToKeep.start;i++){behindRange.end=ranges.end(i);}if(behindRange.start<behindRange.end){clearRanges.push(behindRange);}}if(ranges.end(ranges.length-1)>=rangeToKeep.end){var aheadRange={start:rangeToKeep.end,end:ranges.end(ranges.length-1)+BUFFER_RANGE_CALCULATION_THRESHOLD};if(aheadRange.start<aheadRange.end){clearRanges.push(aheadRange);}}return clearRanges;}function clearBuffers(ranges){if(!ranges||!buffer||ranges.length===0)return;pendingPruningRanges.push.apply(pendingPruningRanges,ranges);if(isPruningInProgress){return;}clearNextRange();}function clearNextRange(){// If there's nothing to prune reset state\nif(pendingPruningRanges.length===0||!buffer){logger.debug('Nothing to prune, halt pruning');pendingPruningRanges=[];isPruningInProgress=false;return;}var sourceBuffer=buffer.getBuffer();// If there's nothing buffered any pruning is invalid, so reset our state\nif(!sourceBuffer||!sourceBuffer.buffered||sourceBuffer.buffered.length===0){logger.debug('SourceBuffer is empty (or does not exist), halt pruning');pendingPruningRanges=[];isPruningInProgress=false;return;}var range=pendingPruningRanges.shift();logger.debug('Removing buffer from:',range.start,'to',range.end);isPruningInProgress=true;// If removing buffer ahead current playback position, update maxAppendedIndex\nvar currentTime=playbackController.getTime();if(currentTime<range.end){isBufferingCompleted=false;maxAppendedIndex=0;if(!bufferResetInProgress){streamProcessor.getScheduleController().setSeekTarget(currentTime);streamProcessor.setIndexHandlerTime(currentTime);}}buffer.remove(range.start,range.end,range.force);}function onRemoved(e){if(buffer!==e.buffer)return;logger.debug('onRemoved buffer from:',e.from,'to',e.to);var ranges=buffer.getAllBufferRanges();showBufferRanges(ranges);if(pendingPruningRanges.length===0){isPruningInProgress=false;}if(e.unintended){logger.warn('Detected unintended removal from:',e.from,'to',e.to,'setting index handler time to',e.from);streamProcessor.setIndexHandlerTime(e.from);}if(isPruningInProgress){clearNextRange();}else{if(!bufferResetInProgress){logger.debug('onRemoved : call updateBufferLevel');updateBufferLevel();addBufferMetrics();}else{bufferResetInProgress=false;if(mediaChunk){appendToBuffer(mediaChunk);}}eventBus.trigger(_Events2.default.BUFFER_CLEARED,{sender:instance,from:e.from,to:e.to,unintended:e.unintended,hasEnoughSpaceToAppend:hasEnoughSpaceToAppend(),quotaExceeded:isQuotaExceeded});}//TODO - REMEMBER removed a timerout hack calling clearBuffer after manifestInfo.minBufferTime * 1000 if !hasEnoughSpaceToAppend() Aug 04 2016\n}function updateBufferTimestampOffset(MSETimeOffset){// Each track can have its own @presentationTimeOffset, so we should set the offset\n// if it has changed after switching the quality or updating an mpd\nif(buffer&&buffer.updateTimestampOffset){buffer.updateTimestampOffset(MSETimeOffset);}}function onDataUpdateCompleted(e){if(e.sender.getType()!==streamProcessor.getType()||e.sender.getStreamId()!==streamProcessor.getStreamInfo().id||e.error)return;updateBufferTimestampOffset(e.currentRepresentation.MSETimeOffset);}function onStreamCompleted(e){if(e.fragmentModel!==streamProcessor.getFragmentModel())return;lastIndex=e.request.index;checkIfBufferingCompleted();}function onCurrentTrackChanged(e){var ranges=buffer&&buffer.getAllBufferRanges();if(!ranges||e.newMediaInfo.type!==type||e.newMediaInfo.streamInfo.id!==streamProcessor.getStreamInfo().id)return;logger.info('Track change asked');if(mediaController.getSwitchMode(type)===_MediaController2.default.TRACK_SWITCH_MODE_ALWAYS_REPLACE){if(ranges&&ranges.length>0&&playbackController.getTimeToStreamEnd()>STALL_THRESHOLD){isBufferingCompleted=false;lastIndex=Number.POSITIVE_INFINITY;}}}function onWallclockTimeUpdated(){wallclockTicked++;var secondsElapsed=wallclockTicked*(settings.get().streaming.wallclockTimeUpdateInterval/1000);if(secondsElapsed>=settings.get().streaming.bufferPruningInterval){wallclockTicked=0;pruneBuffer();}}function onPlaybackRateChanged(){checkIfSufficientBuffer();}function getType(){return type;}function getStreamProcessor(){return streamProcessor;}function setSeekStartTime(value){seekStartTime=value;}function getBuffer(){return buffer;}function setBuffer(newBuffer){buffer=newBuffer;}function getBufferLevel(){return bufferLevel;}function setMediaSource(value,mediaInfo){mediaSource=value;if(buffer&&mediaInfo){//if we have a prebuffer, we should prepare to discharge it, and make a new sourceBuffer ready\nif(typeof buffer.discharge==='function'){dischargeBuffer=buffer;createBuffer(mediaInfo);}}}function getMediaSource(){return mediaSource;}function getIsBufferingCompleted(){return isBufferingCompleted;}function getIsPruningInProgress(){return isPruningInProgress;}function getTotalBufferedTime(){var ranges=buffer.getAllBufferRanges();var totalBufferedTime=0;var ln=void 0,i=void 0;if(!ranges)return totalBufferedTime;for(i=0,ln=ranges.length;i<ln;i++){totalBufferedTime+=ranges.end(i)-ranges.start(i);}return totalBufferedTime;}function hasEnoughSpaceToAppend(){var totalBufferedTime=getTotalBufferedTime();return totalBufferedTime<criticalBufferLevel;}function resetInitialSettings(errored,keepBuffers){criticalBufferLevel=Number.POSITIVE_INFINITY;bufferState=undefined;requiredQuality=_AbrController2.default.QUALITY_DEFAULT;lastIndex=Number.POSITIVE_INFINITY;maxAppendedIndex=0;appendedBytesInfo=null;isBufferingCompleted=false;isPruningInProgress=false;isQuotaExceeded=false;seekClearedBufferingCompleted=false;bufferLevel=0;wallclockTicked=0;pendingPruningRanges=[];if(buffer){if(!errored){buffer.abort();}buffer.reset(keepBuffers);buffer=null;}bufferResetInProgress=false;}function reset(errored,keepBuffers){eventBus.off(_Events2.default.DATA_UPDATE_COMPLETED,onDataUpdateCompleted,this);eventBus.off(_Events2.default.QUALITY_CHANGE_REQUESTED,onQualityChanged,this);eventBus.off(_Events2.default.INIT_FRAGMENT_LOADED,onInitFragmentLoaded,this);eventBus.off(_Events2.default.MEDIA_FRAGMENT_LOADED,onMediaFragmentLoaded,this);eventBus.off(_Events2.default.STREAM_COMPLETED,onStreamCompleted,this);eventBus.off(_Events2.default.CURRENT_TRACK_CHANGED,onCurrentTrackChanged,this);eventBus.off(_Events2.default.PLAYBACK_PLAYING,onPlaybackPlaying,this);eventBus.off(_Events2.default.PLAYBACK_PROGRESS,onPlaybackProgression,this);eventBus.off(_Events2.default.PLAYBACK_TIME_UPDATED,onPlaybackProgression,this);eventBus.off(_Events2.default.PLAYBACK_RATE_CHANGED,onPlaybackRateChanged,this);eventBus.off(_Events2.default.PLAYBACK_SEEKING,onPlaybackSeeking,this);eventBus.off(_Events2.default.PLAYBACK_SEEKED,onPlaybackSeeked,this);eventBus.off(_Events2.default.PLAYBACK_STALLED,onPlaybackStalled,this);eventBus.off(_Events2.default.WALLCLOCK_TIME_UPDATED,onWallclockTimeUpdated,this);eventBus.off(_Events2.default.SOURCEBUFFER_REMOVE_COMPLETED,onRemoved,this);resetInitialSettings(errored,keepBuffers);}instance={getBufferControllerType:getBufferControllerType,initialize:initialize,createBuffer:createBuffer,dischargePreBuffer:dischargePreBuffer,getType:getType,getStreamProcessor:getStreamProcessor,setSeekStartTime:setSeekStartTime,getBuffer:getBuffer,setBuffer:setBuffer,getBufferLevel:getBufferLevel,getRangeAt:getRangeAt,setMediaSource:setMediaSource,getMediaSource:getMediaSource,getIsBufferingCompleted:getIsBufferingCompleted,switchInitData:switchInitData,getIsPruningInProgress:getIsPruningInProgress,reset:reset};setup();return instance;}BufferController.__dashjs_factory_name=BUFFER_CONTROLLER_TYPE;exports.default=_FactoryMaker2.default.getClassFactory(BufferController);\n//# sourceMappingURL=BufferController.js.map\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _FactoryMaker=require('../../core/FactoryMaker');var _FactoryMaker2=_interopRequireDefault(_FactoryMaker);var _DefaultURLUtils=require('./DefaultURLUtils');var _DefaultURLUtils2=_interopRequireDefault(_DefaultURLUtils);function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}/**\n * @module URLUtils\n * @ignore\n * @description Provides utility functions for operating on URLs.\n * Initially this is simply a method to determine the Base URL of a URL, but\n * should probably include other things provided all over the place such as\n * determining whether a URL is relative/absolute, resolving two paths etc.\n *//**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n */function URLUtils(){var instance=void 0;var defaultURLUtils=void 0;var regexUtils=[];var context=this.context;function getUtils(url){var i=void 0;for(i=0;i<regexUtils.length;i++){var regex=regexUtils[i].regex;if(regex.test(url)){return regexUtils[i].utils;}}return defaultURLUtils;}function setup(){defaultURLUtils=(0,_DefaultURLUtils2.default)(context).getInstance();}/**\n     * Register a module to handle specific url.\n     * @param {regex} regex - url regex\n     * @param {object} utils - object that handles the regex\n     * @memberof module:URLUtils\n     * @instance\n     */function registerUrlRegex(regex,utils){regexUtils.push({regex:regex,utils:utils});}function internalCall(functionName,url,baseUrl){var utils=getUtils(baseUrl||url);return utils&&typeof utils[functionName]==='function'?utils[functionName](url,baseUrl):defaultURLUtils[functionName](url,baseUrl);}/**\n     * Returns a string that contains the Base URL of a URL, if determinable.\n     * @param {string} url - full url\n     * @return {string}\n     * @memberof module:URLUtils\n     * @instance\n     */function parseBaseUrl(url){return internalCall('parseBaseUrl',url);}/**\n     * Returns a string that contains the scheme and origin of a URL,\n     * if determinable.\n     * @param {string} url - full url\n     * @return {string}\n     * @memberof module:URLUtils\n     * @instance\n     */function parseOrigin(url){return internalCall('parseOrigin',url);}/**\n     * Returns a string that contains the fragment of a URL without scheme,\n     * if determinable.\n     * @param {string} url - full url\n     * @return {string}\n     * @memberof module:URLUtils\n     * @instance\n     */function removeHostname(url){return internalCall('removeHostname',url);}/**\n     * Returns a string that contains the scheme of a URL, if determinable.\n     * @param {string} url - full url\n     * @return {string}\n     * @memberof module:URLUtils\n     * @instance\n     */function parseScheme(url){return internalCall('parseScheme',url);}/**\n     * Determines whether the url is relative.\n     * @return {boolean}\n     * @param {string} url\n     * @memberof module:URLUtils\n     * @instance\n     */function isRelative(url){return internalCall('isRelative',url);}/**\n     * Determines whether the url is path-absolute.\n     * @return {bool}\n     * @param {string} url\n     * @memberof module:URLUtils\n     * @instance\n     */function isPathAbsolute(url){return internalCall('isPathAbsolute',url);}/**\n     * Determines whether the url is scheme-relative.\n     * @return {bool}\n     * @param {string} url\n     * @memberof module:URLUtils\n     * @instance\n     */function isSchemeRelative(url){return internalCall('isSchemeRelative',url);}/**\n     * Determines whether the url is an HTTP-URL as defined in ISO/IEC\n     * 23009-1:2014 3.1.15. ie URL with a fixed scheme of http or https\n     * @return {bool}\n     * @param {string} url\n     * @memberof module:URLUtils\n     * @instance\n     */function isHTTPURL(url){return internalCall('isHTTPURL',url);}/**\n     * Determines whether the supplied url has https scheme\n     * @return {bool}\n     * @param {string} url\n     * @memberof module:URLUtils\n     * @instance\n     */function isHTTPS(url){return internalCall('isHTTPS',url);}/**\n     * Resolves a url given an optional base url\n     * @return {string}\n     * @param {string} url\n     * @param {string} [baseUrl]\n     * @memberof module:URLUtils\n     * @instance\n     */function resolve(url,baseUrl){return internalCall('resolve',url,baseUrl);}setup();instance={registerUrlRegex:registerUrlRegex,parseBaseUrl:parseBaseUrl,parseOrigin:parseOrigin,parseScheme:parseScheme,isRelative:isRelative,isPathAbsolute:isPathAbsolute,isSchemeRelative:isSchemeRelative,isHTTPURL:isHTTPURL,isHTTPS:isHTTPS,removeHostname:removeHostname,resolve:resolve};return instance;}URLUtils.__dashjs_factory_name='URLUtils';var factory=_FactoryMaker2.default.getSingletonFactory(URLUtils);exports.default=factory;\n//# sourceMappingURL=URLUtils.js.map\n","\"use strict\";Object.defineProperty(exports,\"__esModule\",{value:true});var _createClass=function(){function defineProperties(target,props){for(var i=0;i<props.length;i++){var descriptor=props[i];descriptor.enumerable=descriptor.enumerable||false;descriptor.configurable=true;if(\"value\"in descriptor)descriptor.writable=true;Object.defineProperty(target,descriptor.key,descriptor);}}return function(Constructor,protoProps,staticProps){if(protoProps)defineProperties(Constructor.prototype,protoProps);if(staticProps)defineProperties(Constructor,staticProps);return Constructor;};}();function _classCallCheck(instance,Constructor){if(!(instance instanceof Constructor)){throw new TypeError(\"Cannot call a class as a function\");}}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n *//**\n * @classdesc a property belonging to a MapNode\n * @ignore\n */var CommonProperty=function(){function CommonProperty(name){_classCallCheck(this,CommonProperty);var getDefaultMergeForName=function getDefaultMergeForName(n){return n&&n.length&&n.charAt(0)===n.charAt(0).toUpperCase();};this._name=name;this._merge=getDefaultMergeForName(name);}_createClass(CommonProperty,[{key:\"name\",get:function get(){return this._name;}},{key:\"merge\",get:function get(){return this._merge;}}]);return CommonProperty;}();exports.default=CommonProperty;\n//# sourceMappingURL=CommonProperty.js.map\n","\"use strict\";Object.defineProperty(exports,\"__esModule\",{value:true});function _classCallCheck(instance,Constructor){if(!(instance instanceof Constructor)){throw new TypeError(\"Cannot call a class as a function\");}}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n *//**\n * @class\n * @ignore\n */var IsoBoxSearchInfo=function IsoBoxSearchInfo(lastCompletedOffset,found,size){_classCallCheck(this,IsoBoxSearchInfo);this.lastCompletedOffset=lastCompletedOffset;this.found=found;this.size=size;};exports.default=IsoBoxSearchInfo;\n//# sourceMappingURL=IsoBoxSearchInfo.js.map\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _Constants=require('../../streaming/constants/Constants');var _Constants2=_interopRequireDefault(_Constants);var _DashConstants=require('../constants/DashConstants');var _DashConstants2=_interopRequireDefault(_DashConstants);var _Representation=require('../vo/Representation');var _Representation2=_interopRequireDefault(_Representation);var _AdaptationSet=require('../vo/AdaptationSet');var _AdaptationSet2=_interopRequireDefault(_AdaptationSet);var _Period=require('../vo/Period');var _Period2=_interopRequireDefault(_Period);var _Mpd=require('../vo/Mpd');var _Mpd2=_interopRequireDefault(_Mpd);var _UTCTiming=require('../vo/UTCTiming');var _UTCTiming2=_interopRequireDefault(_UTCTiming);var _Event=require('../vo/Event');var _Event2=_interopRequireDefault(_Event);var _BaseURL=require('../vo/BaseURL');var _BaseURL2=_interopRequireDefault(_BaseURL);var _EventStream=require('../vo/EventStream');var _EventStream2=_interopRequireDefault(_EventStream);var _ObjectUtils=require('../../streaming/utils/ObjectUtils');var _ObjectUtils2=_interopRequireDefault(_ObjectUtils);var _URLUtils=require('../../streaming/utils/URLUtils');var _URLUtils2=_interopRequireDefault(_URLUtils);var _FactoryMaker=require('../../core/FactoryMaker');var _FactoryMaker2=_interopRequireDefault(_FactoryMaker);var _Debug=require('../../core/Debug');var _Debug2=_interopRequireDefault(_Debug);var _DashJSError=require('../../streaming/vo/DashJSError');var _DashJSError2=_interopRequireDefault(_DashJSError);var _Errors=require('../../core/errors/Errors');var _Errors2=_interopRequireDefault(_Errors);var _ThumbnailTracks=require('../../streaming/thumbnail/ThumbnailTracks');function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}function DashManifestModel(){var instance=void 0,logger=void 0,errHandler=void 0,BASE64=void 0;var context=this.context;var urlUtils=(0,_URLUtils2.default)(context).getInstance();var isInteger=Number.isInteger||function(value){return typeof value==='number'&&isFinite(value)&&Math.floor(value)===value;};function setup(){logger=(0,_Debug2.default)(context).getInstance().getLogger(instance);}function getIsTypeOf(adaptation,type){var i=void 0,len=void 0,representation=void 0,col=void 0,mimeTypeRegEx=void 0,codecs=void 0;var result=false;var found=false;if(!adaptation){throw new Error('adaptation is not defined');}if(!type){throw new Error('type is not defined');}if(adaptation.hasOwnProperty('ContentComponent_asArray')){col=adaptation.ContentComponent_asArray;}mimeTypeRegEx=type!==_Constants2.default.TEXT?new RegExp(type):new RegExp('(vtt|ttml)');if(adaptation.Representation_asArray&&adaptation.Representation_asArray.length&&adaptation.Representation_asArray.length>0){var essentialProperties=getEssentialPropertiesForRepresentation(adaptation.Representation_asArray[0]);if(essentialProperties&&essentialProperties.length>0&&_ThumbnailTracks.THUMBNAILS_SCHEME_ID_URIS.indexOf(essentialProperties[0].schemeIdUri)>=0){return type===_Constants2.default.IMAGE;}if(adaptation.Representation_asArray[0].hasOwnProperty(_DashConstants2.default.CODECS)){// Just check the start of the codecs string\ncodecs=adaptation.Representation_asArray[0].codecs;if(codecs.search(_Constants2.default.STPP)===0||codecs.search(_Constants2.default.WVTT)===0){return type===_Constants2.default.FRAGMENTED_TEXT;}}}if(col){if(col.length>1){return type===_Constants2.default.MUXED;}else if(col[0]&&col[0].contentType===type){result=true;found=true;}}if(adaptation.hasOwnProperty(_DashConstants2.default.MIME_TYPE)){result=mimeTypeRegEx.test(adaptation.mimeType);found=true;}// couldn't find on adaptationset, so check a representation\nif(!found){i=0;len=adaptation.Representation_asArray&&adaptation.Representation_asArray.length?adaptation.Representation_asArray.length:0;while(!found&&i<len){representation=adaptation.Representation_asArray[i];if(representation.hasOwnProperty(_DashConstants2.default.MIME_TYPE)){result=mimeTypeRegEx.test(representation.mimeType);found=true;}i++;}}return result;}function getIsAudio(adaptation){return getIsTypeOf(adaptation,_Constants2.default.AUDIO);}function getIsVideo(adaptation){return getIsTypeOf(adaptation,_Constants2.default.VIDEO);}function getIsFragmentedText(adaptation){return getIsTypeOf(adaptation,_Constants2.default.FRAGMENTED_TEXT);}function getIsMuxed(adaptation){return getIsTypeOf(adaptation,_Constants2.default.MUXED);}function getIsImage(adaptation){return getIsTypeOf(adaptation,_Constants2.default.IMAGE);}function getIsTextTrack(type){return type==='text/vtt'||type==='application/ttml+xml';}function getLanguageForAdaptation(adaptation){var lang='';if(adaptation&&adaptation.hasOwnProperty(_DashConstants2.default.LANG)){//Filter out any other characters not allowed according to RFC5646\nlang=adaptation.lang.replace(/[^A-Za-z0-9-]/g,'');}return lang;}function getViewpointForAdaptation(adaptation){return adaptation&&adaptation.hasOwnProperty(_DashConstants2.default.VIEWPOINT)?adaptation.Viewpoint:null;}function getRolesForAdaptation(adaptation){return adaptation&&adaptation.hasOwnProperty(_DashConstants2.default.ROLE_ASARRAY)?adaptation.Role_asArray:[];}function getAccessibilityForAdaptation(adaptation){return adaptation&&adaptation.hasOwnProperty(_DashConstants2.default.ACCESSIBILITY_ASARRAY)?adaptation.Accessibility_asArray:[];}function getAudioChannelConfigurationForAdaptation(adaptation){return adaptation&&adaptation.hasOwnProperty(_DashConstants2.default.AUDIOCHANNELCONFIGURATION_ASARRAY)?adaptation.AudioChannelConfiguration_asArray:[];}function getAudioChannelConfigurationForRepresentation(representation){return representation&&representation.hasOwnProperty(_DashConstants2.default.AUDIOCHANNELCONFIGURATION_ASARRAY)?representation.AudioChannelConfiguration_asArray:[];}function getRepresentationSortFunction(){return function(a,b){return a.bandwidth-b.bandwidth;};}function processAdaptation(realAdaptation){if(realAdaptation&&Array.isArray(realAdaptation.Representation_asArray)){realAdaptation.Representation_asArray.sort(getRepresentationSortFunction());}return realAdaptation;}function getRealAdaptations(manifest,periodIndex){return manifest&&manifest.Period_asArray&&isInteger(periodIndex)?manifest.Period_asArray[periodIndex]?manifest.Period_asArray[periodIndex].AdaptationSet_asArray:[]:[];}function getAdaptationForId(id,manifest,periodIndex){var realAdaptations=getRealAdaptations(manifest,periodIndex);var i=void 0,len=void 0;for(i=0,len=realAdaptations.length;i<len;i++){if(realAdaptations[i].hasOwnProperty(_DashConstants2.default.ID)&&realAdaptations[i].id===id){return realAdaptations[i];}}return null;}function getAdaptationForIndex(index,manifest,periodIndex){var realAdaptations=getRealAdaptations(manifest,periodIndex);if(realAdaptations.length>0&&isInteger(index)){return realAdaptations[index];}else{return null;}}function getIndexForAdaptation(realAdaptation,manifest,periodIndex){if(!realAdaptation){return-1;}var realAdaptations=getRealAdaptations(manifest,periodIndex);for(var i=0;i<realAdaptations.length;i++){var objectUtils=(0,_ObjectUtils2.default)(context).getInstance();if(objectUtils.areEqual(realAdaptations[i],realAdaptation)){return i;}}return-1;}function getAdaptationsForType(manifest,periodIndex,type){var realAdaptations=getRealAdaptations(manifest,periodIndex);var i=void 0,len=void 0;var adaptations=[];for(i=0,len=realAdaptations.length;i<len;i++){if(getIsTypeOf(realAdaptations[i],type)){adaptations.push(processAdaptation(realAdaptations[i]));}}return adaptations;}function getCodec(adaptation,representationId,addResolutionInfo){var codec=null;if(adaptation&&adaptation.Representation_asArray&&adaptation.Representation_asArray.length>0){var representation=isInteger(representationId)&&representationId>=0&&representationId<adaptation.Representation_asArray.length?adaptation.Representation_asArray[representationId]:adaptation.Representation_asArray[0];if(representation){codec=representation.mimeType+';codecs=\"'+representation.codecs+'\"';if(addResolutionInfo&&representation.width!==undefined){codec+=';width=\"'+representation.width+'\";height=\"'+representation.height+'\"';}}}return codec;}function getMimeType(adaptation){return adaptation&&adaptation.Representation_asArray&&adaptation.Representation_asArray.length>0?adaptation.Representation_asArray[0].mimeType:null;}function getKID(adaptation){if(!adaptation||!adaptation.hasOwnProperty(_DashConstants2.default.CENC_DEFAULT_KID)){return null;}return adaptation[_DashConstants2.default.CENC_DEFAULT_KID];}function getLabelsForAdaptation(adaptation){if(!adaptation||!Array.isArray(adaptation.Label_asArray)){return[];}var labelArray=[];for(var i=0;i<adaptation.Label_asArray.length;i++){labelArray.push({lang:adaptation.Label_asArray[i].lang,text:adaptation.Label_asArray[i].__text||adaptation.Label_asArray[i]});}return labelArray;}function getContentProtectionData(adaptation){if(!adaptation||!adaptation.hasOwnProperty(_DashConstants2.default.CONTENTPROTECTION_ASARRAY)||adaptation.ContentProtection_asArray.length===0){return null;}return adaptation.ContentProtection_asArray;}function getIsDynamic(manifest){var isDynamic=false;if(manifest&&manifest.hasOwnProperty('type')){isDynamic=manifest.type===_DashConstants2.default.DYNAMIC;}return isDynamic;}function hasProfile(manifest,profile){var has=false;if(manifest&&manifest.profiles&&manifest.profiles.length>0){has=manifest.profiles.indexOf(profile)!==-1;}return has;}function getDuration(manifest){var mpdDuration=void 0;//@mediaPresentationDuration specifies the duration of the entire Media Presentation.\n//If the attribute is not present, the duration of the Media Presentation is unknown.\nif(manifest&&manifest.hasOwnProperty(_DashConstants2.default.MEDIA_PRESENTATION_DURATION)){mpdDuration=manifest.mediaPresentationDuration;}else if(manifest&&manifest.type=='dynamic'){mpdDuration=Number.POSITIVE_INFINITY;}else{mpdDuration=Number.MAX_SAFE_INTEGER||Number.MAX_VALUE;}return mpdDuration;}function getBandwidth(representation){return representation&&representation.bandwidth?representation.bandwidth:NaN;}function getManifestUpdatePeriod(manifest){var latencyOfLastUpdate=arguments.length>1&&arguments[1]!==undefined?arguments[1]:0;var delay=NaN;if(manifest&&manifest.hasOwnProperty(_DashConstants2.default.MINIMUM_UPDATE_PERIOD)){delay=manifest.minimumUpdatePeriod;}return isNaN(delay)?delay:Math.max(delay-latencyOfLastUpdate,1);}function getRepresentationCount(adaptation){return adaptation&&Array.isArray(adaptation.Representation_asArray)?adaptation.Representation_asArray.length:0;}function getBitrateListForAdaptation(realAdaptation){var processedRealAdaptation=processAdaptation(realAdaptation);var realRepresentations=processedRealAdaptation&&Array.isArray(processedRealAdaptation.Representation_asArray)?processedRealAdaptation.Representation_asArray:[];return realRepresentations.map(function(realRepresentation){return{bandwidth:realRepresentation.bandwidth,width:realRepresentation.width||0,height:realRepresentation.height||0,scanType:realRepresentation.scanType||null,id:realRepresentation.id||null};});}function getEssentialPropertiesForRepresentation(realRepresentation){if(!realRepresentation||!realRepresentation.EssentialProperty_asArray||!realRepresentation.EssentialProperty_asArray.length)return null;return realRepresentation.EssentialProperty_asArray.map(function(prop){return{schemeIdUri:prop.schemeIdUri,value:prop.value};});}function getRepresentationFor(index,adaptation){return adaptation&&adaptation.Representation_asArray&&adaptation.Representation_asArray.length>0&&isInteger(index)?adaptation.Representation_asArray[index]:null;}function getRealAdaptationFor(voAdaptation){if(voAdaptation&&voAdaptation.period&&isInteger(voAdaptation.period.index)){var periodArray=voAdaptation.period.mpd.manifest.Period_asArray[voAdaptation.period.index];if(periodArray&&periodArray.AdaptationSet_asArray&&isInteger(voAdaptation.index)){return processAdaptation(periodArray.AdaptationSet_asArray[voAdaptation.index]);}}}function isLastRepeatAttributeValid(segmentTimeline){var s=segmentTimeline.S_asArray[segmentTimeline.S_asArray.length-1];return!s.hasOwnProperty('r')||s.r>=0;}function getUseCalculatedLiveEdgeTimeForAdaptation(voAdaptation){var realAdaptation=getRealAdaptationFor(voAdaptation);var realRepresentation=realAdaptation&&Array.isArray(realAdaptation.Representation_asArray)?realAdaptation.Representation_asArray[0]:null;var segmentInfo=void 0;if(realRepresentation){if(realRepresentation.hasOwnProperty(_DashConstants2.default.SEGMENT_LIST)){segmentInfo=realRepresentation.SegmentList;return segmentInfo.hasOwnProperty(_DashConstants2.default.SEGMENT_TIMELINE)?isLastRepeatAttributeValid(segmentInfo.SegmentTimeline):true;}else if(realRepresentation.hasOwnProperty(_DashConstants2.default.SEGMENT_TEMPLATE)){segmentInfo=realRepresentation.SegmentTemplate;if(segmentInfo.hasOwnProperty(_DashConstants2.default.SEGMENT_TIMELINE)){return isLastRepeatAttributeValid(segmentInfo.SegmentTimeline);}}}return false;}function getRepresentationsForAdaptation(voAdaptation){var voRepresentations=[];var processedRealAdaptation=getRealAdaptationFor(voAdaptation);var segmentInfo=void 0,baseUrl=void 0;if(processedRealAdaptation&&processedRealAdaptation.Representation_asArray){// TODO: TO BE REMOVED. We should get just the baseUrl elements that affects to the representations\n// that we are processing. Making it works properly will require much further changes and given\n// parsing base Urls parameters is needed for our ultra low latency examples, we will\n// keep this \"tricky\" code until the real (and good) solution comes\nif(voAdaptation&&voAdaptation.period&&isInteger(voAdaptation.period.index)){var baseUrls=getBaseURLsFromElement(voAdaptation.period.mpd.manifest);if(baseUrls){baseUrl=baseUrls[0];}}for(var i=0,len=processedRealAdaptation.Representation_asArray.length;i<len;++i){var realRepresentation=processedRealAdaptation.Representation_asArray[i];var voRepresentation=new _Representation2.default();voRepresentation.index=i;voRepresentation.adaptation=voAdaptation;if(realRepresentation.hasOwnProperty(_DashConstants2.default.ID)){voRepresentation.id=realRepresentation.id;}if(realRepresentation.hasOwnProperty(_DashConstants2.default.CODECS)){voRepresentation.codecs=realRepresentation.codecs;}if(realRepresentation.hasOwnProperty(_DashConstants2.default.CODEC_PRIVATE_DATA)){voRepresentation.codecPrivateData=realRepresentation.codecPrivateData;}if(realRepresentation.hasOwnProperty(_DashConstants2.default.BANDWITH)){voRepresentation.bandwidth=realRepresentation.bandwidth;}if(realRepresentation.hasOwnProperty(_DashConstants2.default.WIDTH)){voRepresentation.width=realRepresentation.width;}if(realRepresentation.hasOwnProperty(_DashConstants2.default.HEIGHT)){voRepresentation.height=realRepresentation.height;}if(realRepresentation.hasOwnProperty(_DashConstants2.default.SCAN_TYPE)){voRepresentation.scanType=realRepresentation.scanType;}if(realRepresentation.hasOwnProperty(_DashConstants2.default.MAX_PLAYOUT_RATE)){voRepresentation.maxPlayoutRate=realRepresentation.maxPlayoutRate;}if(realRepresentation.hasOwnProperty(_DashConstants2.default.SEGMENT_BASE)){segmentInfo=realRepresentation.SegmentBase;voRepresentation.segmentInfoType=_DashConstants2.default.SEGMENT_BASE;}else if(realRepresentation.hasOwnProperty(_DashConstants2.default.SEGMENT_LIST)){segmentInfo=realRepresentation.SegmentList;if(segmentInfo.hasOwnProperty(_DashConstants2.default.SEGMENT_TIMELINE)){voRepresentation.segmentInfoType=_DashConstants2.default.SEGMENT_TIMELINE;voRepresentation.useCalculatedLiveEdgeTime=isLastRepeatAttributeValid(segmentInfo.SegmentTimeline);}else{voRepresentation.segmentInfoType=_DashConstants2.default.SEGMENT_LIST;voRepresentation.useCalculatedLiveEdgeTime=true;}}else if(realRepresentation.hasOwnProperty(_DashConstants2.default.SEGMENT_TEMPLATE)){segmentInfo=realRepresentation.SegmentTemplate;if(segmentInfo.hasOwnProperty(_DashConstants2.default.SEGMENT_TIMELINE)){voRepresentation.segmentInfoType=_DashConstants2.default.SEGMENT_TIMELINE;voRepresentation.useCalculatedLiveEdgeTime=isLastRepeatAttributeValid(segmentInfo.SegmentTimeline);}else{voRepresentation.segmentInfoType=_DashConstants2.default.SEGMENT_TEMPLATE;}if(segmentInfo.hasOwnProperty(_DashConstants2.default.INITIALIZATION_MINUS)){voRepresentation.initialization=segmentInfo.initialization.split('$Bandwidth$').join(realRepresentation.bandwidth).split('$RepresentationID$').join(realRepresentation.id);}}else{voRepresentation.segmentInfoType=_DashConstants2.default.BASE_URL;}voRepresentation.essentialProperties=getEssentialPropertiesForRepresentation(realRepresentation);if(segmentInfo){if(segmentInfo.hasOwnProperty(_DashConstants2.default.INITIALIZATION)){var initialization=segmentInfo.Initialization;if(initialization.hasOwnProperty(_DashConstants2.default.SOURCE_URL)){voRepresentation.initialization=initialization.sourceURL;}if(initialization.hasOwnProperty(_DashConstants2.default.RANGE)){voRepresentation.range=initialization.range;// initialization source url will be determined from\n// BaseURL when resolved at load time.\n}}else if(realRepresentation.hasOwnProperty(_DashConstants2.default.MIME_TYPE)&&getIsTextTrack(realRepresentation.mimeType)){voRepresentation.range=0;}if(segmentInfo.hasOwnProperty(_DashConstants2.default.TIMESCALE)){voRepresentation.timescale=segmentInfo.timescale;}if(segmentInfo.hasOwnProperty(_DashConstants2.default.DURATION)){// TODO according to the spec @maxSegmentDuration specifies the maximum duration of any Segment in any Representation in the Media Presentation\n// It is also said that for a SegmentTimeline any @d value shall not exceed the value of MPD@maxSegmentDuration, but nothing is said about\n// SegmentTemplate @duration attribute. We need to find out if @maxSegmentDuration should be used instead of calculated duration if the the duration\n// exceeds @maxSegmentDuration\nvoRepresentation.segmentDuration=segmentInfo.duration/voRepresentation.timescale;}if(segmentInfo.hasOwnProperty(_DashConstants2.default.MEDIA)){voRepresentation.media=segmentInfo.media;}if(segmentInfo.hasOwnProperty(_DashConstants2.default.START_NUMBER)){voRepresentation.startNumber=segmentInfo.startNumber;}if(segmentInfo.hasOwnProperty(_DashConstants2.default.INDEX_RANGE)){voRepresentation.indexRange=segmentInfo.indexRange;}if(segmentInfo.hasOwnProperty(_DashConstants2.default.PRESENTATION_TIME_OFFSET)){voRepresentation.presentationTimeOffset=segmentInfo.presentationTimeOffset/voRepresentation.timescale;}if(segmentInfo.hasOwnProperty(_DashConstants2.default.AVAILABILITY_TIME_OFFSET)){voRepresentation.availabilityTimeOffset=segmentInfo.availabilityTimeOffset;}else if(baseUrl&&baseUrl.availabilityTimeOffset!==undefined){voRepresentation.availabilityTimeOffset=baseUrl.availabilityTimeOffset;}if(segmentInfo.hasOwnProperty(_DashConstants2.default.AVAILABILITY_TIME_COMPLETE)){voRepresentation.availabilityTimeComplete=segmentInfo.availabilityTimeComplete!=='false';}else if(baseUrl&&baseUrl.availabilityTimeComplete!==undefined){voRepresentation.availabilityTimeComplete=baseUrl.availabilityTimeComplete;}}voRepresentation.MSETimeOffset=calcMSETimeOffset(voRepresentation);voRepresentation.path=[voAdaptation.period.index,voAdaptation.index,i];voRepresentations.push(voRepresentation);}}return voRepresentations;}function calcMSETimeOffset(representation){// The MSEOffset is offset from AST for media. It is Period@start - presentationTimeOffset\nvar presentationOffset=representation.presentationTimeOffset;var periodStart=representation.adaptation.period.start;return periodStart-presentationOffset;}function getAdaptationsForPeriod(voPeriod){var realPeriod=voPeriod&&isInteger(voPeriod.index)?voPeriod.mpd.manifest.Period_asArray[voPeriod.index]:null;var voAdaptations=[];var voAdaptationSet=void 0,realAdaptationSet=void 0,i=void 0;if(realPeriod&&realPeriod.AdaptationSet_asArray){for(i=0;i<realPeriod.AdaptationSet_asArray.length;i++){realAdaptationSet=realPeriod.AdaptationSet_asArray[i];voAdaptationSet=new _AdaptationSet2.default();if(realAdaptationSet.hasOwnProperty(_DashConstants2.default.ID)){voAdaptationSet.id=realAdaptationSet.id;}voAdaptationSet.index=i;voAdaptationSet.period=voPeriod;if(getIsMuxed(realAdaptationSet)){voAdaptationSet.type=_Constants2.default.MUXED;}else if(getIsAudio(realAdaptationSet)){voAdaptationSet.type=_Constants2.default.AUDIO;}else if(getIsVideo(realAdaptationSet)){voAdaptationSet.type=_Constants2.default.VIDEO;}else if(getIsFragmentedText(realAdaptationSet)){voAdaptationSet.type=_Constants2.default.FRAGMENTED_TEXT;}else if(getIsImage(realAdaptationSet)){voAdaptationSet.type=_Constants2.default.IMAGE;}else{voAdaptationSet.type=_Constants2.default.TEXT;}voAdaptations.push(voAdaptationSet);}}return voAdaptations;}function getRegularPeriods(mpd){var isDynamic=mpd?getIsDynamic(mpd.manifest):false;var voPeriods=[];var realPreviousPeriod=null;var realPeriod=null;var voPreviousPeriod=null;var voPeriod=null;var len=void 0,i=void 0;for(i=0,len=mpd&&mpd.manifest&&mpd.manifest.Period_asArray?mpd.manifest.Period_asArray.length:0;i<len;i++){realPeriod=mpd.manifest.Period_asArray[i];// If the attribute @start is present in the Period, then the\n// Period is a regular Period and the PeriodStart is equal\n// to the value of this attribute.\nif(realPeriod.hasOwnProperty(_DashConstants2.default.START)){voPeriod=new _Period2.default();voPeriod.start=realPeriod.start;}// If the @start attribute is absent, but the previous Period\n// element contains a @duration attribute then then this new\n// Period is also a regular Period. The start time of the new\n// Period PeriodStart is the sum of the start time of the previous\n// Period PeriodStart and the value of the attribute @duration\n// of the previous Period.\nelse if(realPreviousPeriod!==null&&realPreviousPeriod.hasOwnProperty(_DashConstants2.default.DURATION)&&voPreviousPeriod!==null){voPeriod=new _Period2.default();voPeriod.start=parseFloat((voPreviousPeriod.start+voPreviousPeriod.duration).toFixed(5));}// If (i) @start attribute is absent, and (ii) the Period element\n// is the first in the MPD, and (iii) the MPD@type is 'static',\n// then the PeriodStart time shall be set to zero.\nelse if(i===0&&!isDynamic){voPeriod=new _Period2.default();voPeriod.start=0;}// The Period extends until the PeriodStart of the next Period.\n// The difference between the PeriodStart time of a Period and\n// the PeriodStart time of the following Period.\nif(voPreviousPeriod!==null&&isNaN(voPreviousPeriod.duration)){if(voPeriod!==null){voPreviousPeriod.duration=parseFloat((voPeriod.start-voPreviousPeriod.start).toFixed(5));}else{logger.warn('First period duration could not be calculated because lack of start and duration period properties. This will cause timing issues during playback');}}if(voPeriod!==null){voPeriod.id=getPeriodId(realPeriod,i);voPeriod.index=i;voPeriod.mpd=mpd;if(realPeriod.hasOwnProperty(_DashConstants2.default.DURATION)){voPeriod.duration=realPeriod.duration;}voPeriods.push(voPeriod);realPreviousPeriod=realPeriod;voPreviousPeriod=voPeriod;}realPeriod=null;voPeriod=null;}if(voPeriods.length===0){return voPeriods;}// The last Period extends until the end of the Media Presentation.\n// The difference between the PeriodStart time of the last Period\n// and the mpd duration\nif(voPreviousPeriod!==null&&isNaN(voPreviousPeriod.duration)){voPreviousPeriod.duration=parseFloat((getEndTimeForLastPeriod(voPreviousPeriod)-voPreviousPeriod.start).toFixed(5));}return voPeriods;}function getPeriodId(realPeriod,i){if(!realPeriod){throw new Error('Period cannot be null or undefined');}var id=_Period2.default.DEFAULT_ID+'_'+i;if(realPeriod.hasOwnProperty(_DashConstants2.default.ID)&&realPeriod.id.length>0&&realPeriod.id!=='__proto__'){id=realPeriod.id;}return id;}function getMpd(manifest){var mpd=new _Mpd2.default();if(manifest){mpd.manifest=manifest;if(manifest.hasOwnProperty(_DashConstants2.default.AVAILABILITY_START_TIME)){mpd.availabilityStartTime=new Date(manifest.availabilityStartTime.getTime());}else{if(manifest.loadedTime){mpd.availabilityStartTime=new Date(manifest.loadedTime.getTime());}}if(manifest.hasOwnProperty(_DashConstants2.default.AVAILABILITY_END_TIME)){mpd.availabilityEndTime=new Date(manifest.availabilityEndTime.getTime());}if(manifest.hasOwnProperty(_DashConstants2.default.MINIMUM_UPDATE_PERIOD)){mpd.minimumUpdatePeriod=manifest.minimumUpdatePeriod;}if(manifest.hasOwnProperty(_DashConstants2.default.MEDIA_PRESENTATION_DURATION)){mpd.mediaPresentationDuration=manifest.mediaPresentationDuration;}if(manifest.hasOwnProperty(_DashConstants2.default.SUGGESTED_PRESENTATION_DELAY)){mpd.suggestedPresentationDelay=manifest.suggestedPresentationDelay;}if(manifest.hasOwnProperty(_DashConstants2.default.TIMESHIFT_BUFFER_DEPTH)){mpd.timeShiftBufferDepth=manifest.timeShiftBufferDepth;}if(manifest.hasOwnProperty(_DashConstants2.default.MAX_SEGMENT_DURATION)){mpd.maxSegmentDuration=manifest.maxSegmentDuration;}}return mpd;}function checkConfig(){if(!errHandler||!errHandler.hasOwnProperty('error')){throw new Error(_Constants2.default.MISSING_CONFIG_ERROR);}}function getEndTimeForLastPeriod(voPeriod){checkConfig();var isDynamic=getIsDynamic(voPeriod.mpd.manifest);var periodEnd=void 0;if(voPeriod.mpd.manifest.mediaPresentationDuration){periodEnd=voPeriod.mpd.manifest.mediaPresentationDuration;}else if(voPeriod.duration){periodEnd=voPeriod.duration;}else if(isDynamic){periodEnd=Number.POSITIVE_INFINITY;}else{errHandler.error(new _DashJSError2.default(_Errors2.default.MANIFEST_ERROR_ID_PARSE_CODE,'Must have @mediaPresentationDuration on MPD or an explicit @duration on the last period.',voPeriod));}return periodEnd;}function getEventsForPeriod(period){var manifest=period&&period.mpd&&period.mpd.manifest?period.mpd.manifest:null;var periodArray=manifest?manifest.Period_asArray:null;var eventStreams=periodArray&&period&&isInteger(period.index)?periodArray[period.index].EventStream_asArray:null;var events=[];var i=void 0,j=void 0;if(eventStreams){for(i=0;i<eventStreams.length;i++){var eventStream=new _EventStream2.default();eventStream.period=period;eventStream.timescale=1;if(eventStreams[i].hasOwnProperty(_Constants2.default.SCHEME_ID_URI)){eventStream.schemeIdUri=eventStreams[i].schemeIdUri;}else{throw new Error('Invalid EventStream. SchemeIdUri has to be set');}if(eventStreams[i].hasOwnProperty(_DashConstants2.default.TIMESCALE)){eventStream.timescale=eventStreams[i].timescale;}if(eventStreams[i].hasOwnProperty(_DashConstants2.default.VALUE)){eventStream.value=eventStreams[i].value;}for(j=0;eventStreams[i].Event_asArray&&j<eventStreams[i].Event_asArray.length;j++){var event=new _Event2.default();event.presentationTime=0;event.eventStream=eventStream;if(eventStreams[i].Event_asArray[j].hasOwnProperty(_DashConstants2.default.PRESENTATION_TIME)){event.presentationTime=eventStreams[i].Event_asArray[j].presentationTime;}if(eventStreams[i].Event_asArray[j].hasOwnProperty(_DashConstants2.default.DURATION)){event.duration=eventStreams[i].Event_asArray[j].duration;}if(eventStreams[i].Event_asArray[j].hasOwnProperty(_DashConstants2.default.ID)){event.id=eventStreams[i].Event_asArray[j].id;}if(eventStreams[i].Event_asArray[j].Signal&&eventStreams[i].Event_asArray[j].Signal.Binary){// toString is used to manage both regular and namespaced tags\nevent.messageData=BASE64.decodeArray(eventStreams[i].Event_asArray[j].Signal.Binary.toString());}else{// From Cor.1: 'NOTE: this attribute is an alternative\n// to specifying a complete XML element(s) in the Event.\n// It is useful when an event leans itself to a compact\n// string representation'.\nevent.messageData=eventStreams[i].Event_asArray[j].messageData||eventStreams[i].Event_asArray[j].__text;}events.push(event);}}}return events;}function getEventStreams(inbandStreams,representation){var eventStreams=[];var i=void 0;if(!inbandStreams)return eventStreams;for(i=0;i<inbandStreams.length;i++){var eventStream=new _EventStream2.default();eventStream.timescale=1;eventStream.representation=representation;if(inbandStreams[i].hasOwnProperty(_Constants2.default.SCHEME_ID_URI)){eventStream.schemeIdUri=inbandStreams[i].schemeIdUri;}else{throw new Error('Invalid EventStream. SchemeIdUri has to be set');}if(inbandStreams[i].hasOwnProperty(_DashConstants2.default.TIMESCALE)){eventStream.timescale=inbandStreams[i].timescale;}if(inbandStreams[i].hasOwnProperty(_DashConstants2.default.VALUE)){eventStream.value=inbandStreams[i].value;}eventStreams.push(eventStream);}return eventStreams;}function getEventStreamForAdaptationSet(manifest,adaptation){var inbandStreams=void 0,periodArray=void 0,adaptationArray=void 0;if(manifest&&manifest.Period_asArray&&adaptation&&adaptation.period&&isInteger(adaptation.period.index)){periodArray=manifest.Period_asArray[adaptation.period.index];if(periodArray&&periodArray.AdaptationSet_asArray&&isInteger(adaptation.index)){adaptationArray=periodArray.AdaptationSet_asArray[adaptation.index];if(adaptationArray){inbandStreams=adaptationArray.InbandEventStream_asArray;}}}return getEventStreams(inbandStreams,null);}function getEventStreamForRepresentation(manifest,representation){var inbandStreams=void 0,periodArray=void 0,adaptationArray=void 0,representationArray=void 0;if(manifest&&manifest.Period_asArray&&representation&&representation.adaptation&&representation.adaptation.period&&isInteger(representation.adaptation.period.index)){periodArray=manifest.Period_asArray[representation.adaptation.period.index];if(periodArray&&periodArray.AdaptationSet_asArray&&isInteger(representation.adaptation.index)){adaptationArray=periodArray.AdaptationSet_asArray[representation.adaptation.index];if(adaptationArray&&adaptationArray.Representation_asArray&&isInteger(representation.index)){representationArray=adaptationArray.Representation_asArray[representation.index];if(representationArray){inbandStreams=representationArray.InbandEventStream_asArray;}}}}return getEventStreams(inbandStreams,representation);}function getUTCTimingSources(manifest){var isDynamic=getIsDynamic(manifest);var hasAST=manifest?manifest.hasOwnProperty(_DashConstants2.default.AVAILABILITY_START_TIME):false;var utcTimingsArray=manifest?manifest.UTCTiming_asArray:null;var utcTimingEntries=[];// do not bother synchronizing the clock unless MPD is live,\n// or it is static and has availabilityStartTime attribute\nif(isDynamic||hasAST){if(utcTimingsArray){// the order is important here - 23009-1 states that the order\n// in the manifest \"indicates relative preference, first having\n// the highest, and the last the lowest priority\".\nutcTimingsArray.forEach(function(utcTiming){var entry=new _UTCTiming2.default();if(utcTiming.hasOwnProperty(_Constants2.default.SCHEME_ID_URI)){entry.schemeIdUri=utcTiming.schemeIdUri;}else{// entries of type DescriptorType with no schemeIdUri\n// are meaningless. let's just ignore this entry and\n// move on.\nreturn;}// this is (incorrectly) interpreted as a number - schema\n// defines it as a string\nif(utcTiming.hasOwnProperty(_DashConstants2.default.VALUE)){entry.value=utcTiming.value.toString();}else{// without a value, there's not a lot we can do with\n// this entry. let's just ignore this one and move on\nreturn;}// we're not interested in the optional id or any other\n// attributes which might be attached to the entry\nutcTimingEntries.push(entry);});}}return utcTimingEntries;}function getBaseURLsFromElement(node){var baseUrls=[];// if node.BaseURL_asArray and node.baseUri are undefined entries\n// will be [undefined] which entries.some will just skip\nvar entries=node.BaseURL_asArray||[node.baseUri];var earlyReturn=false;entries.some(function(entry){if(entry){var baseUrl=new _BaseURL2.default();var text=entry.__text||entry;if(urlUtils.isRelative(text)){// it doesn't really make sense to have relative and\n// absolute URLs at the same level, or multiple\n// relative URLs at the same level, so assume we are\n// done from this level of the MPD\nearlyReturn=true;// deal with the specific case where the MPD@BaseURL\n// is specified and is relative. when no MPD@BaseURL\n// entries exist, that case is handled by the\n// [node.baseUri] in the entries definition.\nif(node.baseUri){text=urlUtils.resolve(text,node.baseUri);}}baseUrl.url=text;// serviceLocation is optional, but we need it in order\n// to blacklist correctly. if it's not available, use\n// anything unique since there's no relationship to any\n// other BaseURL and, in theory, the url should be\n// unique so use this instead.\nif(entry.hasOwnProperty(_DashConstants2.default.SERVICE_LOCATION)&&entry.serviceLocation.length){baseUrl.serviceLocation=entry.serviceLocation;}else{baseUrl.serviceLocation=text;}if(entry.hasOwnProperty(_DashConstants2.default.DVB_PRIORITY)){baseUrl.dvb_priority=entry[_DashConstants2.default.DVB_PRIORITY];}if(entry.hasOwnProperty(_DashConstants2.default.DVB_WEIGHT)){baseUrl.dvb_weight=entry[_DashConstants2.default.DVB_WEIGHT];}if(entry.hasOwnProperty(_DashConstants2.default.AVAILABILITY_TIME_OFFSET)){baseUrl.availabilityTimeOffset=entry[_DashConstants2.default.AVAILABILITY_TIME_OFFSET];}if(entry.hasOwnProperty(_DashConstants2.default.AVAILABILITY_TIME_COMPLETE)){baseUrl.availabilityTimeComplete=entry[_DashConstants2.default.AVAILABILITY_TIME_COMPLETE]!=='false';}/* NOTE: byteRange currently unused\n                 */baseUrls.push(baseUrl);return earlyReturn;}});return baseUrls;}function getLocation(manifest){if(manifest&&manifest.hasOwnProperty(_Constants2.default.LOCATION)){// for now, do not support multiple Locations -\n// just set Location to the first Location.\nmanifest.Location=manifest.Location_asArray[0];return manifest.Location;}// may well be undefined\nreturn undefined;}function getSuggestedPresentationDelay(mpd){return mpd&&mpd.hasOwnProperty(_DashConstants2.default.SUGGESTED_PRESENTATION_DELAY)?mpd.suggestedPresentationDelay:null;}function getAvailabilityStartTime(mpd){return mpd&&mpd.hasOwnProperty(_DashConstants2.default.AVAILABILITY_START_TIME)&&mpd.availabilityStartTime!==null?mpd.availabilityStartTime.getTime():null;}function getServiceDescriptions(manifest){var serviceDescriptions=[];if(manifest&&manifest.hasOwnProperty(_DashConstants2.default.SERVICE_DESCRIPTION)){var _iteratorNormalCompletion=true;var _didIteratorError=false;var _iteratorError=undefined;try{for(var _iterator=manifest.ServiceDescription_asArray[Symbol.iterator](),_step;!(_iteratorNormalCompletion=(_step=_iterator.next()).done);_iteratorNormalCompletion=true){var sd=_step.value;// Convert each of the properties defined in\nvar id=void 0,schemeIdUri=void 0,latency=void 0,playbackRate=void 0;for(var prop in sd){if(sd.hasOwnProperty(prop)){if(prop===_DashConstants2.default.ID){id=sd[prop];}else if(prop===_DashConstants2.default.SERVICE_DESCRIPTION_SCOPE){schemeIdUri=sd[prop].schemeIdUri;}else if(prop===_DashConstants2.default.SERVICE_DESCRIPTION_LATENCY){latency={target:sd[prop].target,max:sd[prop].max,min:sd[prop].min};}else if(prop===_DashConstants2.default.SERVICE_DESCRIPTION_PLAYBACK_RATE){playbackRate={max:sd[prop].max,min:sd[prop].min};}}}// we have a ServiceDescription for low latency. Add it if it really has parameters defined\nif(schemeIdUri===_Constants2.default.SERVICE_DESCRIPTION_LL_SCHEME&&(latency||playbackRate)){serviceDescriptions.push({id:id,schemeIdUri:schemeIdUri,latency:latency,playbackRate:playbackRate});}}}catch(err){_didIteratorError=true;_iteratorError=err;}finally{try{if(!_iteratorNormalCompletion&&_iterator.return){_iterator.return();}}finally{if(_didIteratorError){throw _iteratorError;}}}}return serviceDescriptions;}function getSupplementalPropperties(adaptation){var supplementalProperties={};if(adaptation&&adaptation.hasOwnProperty(_DashConstants2.default.SUPPLEMENTAL_PROPERTY)){var _iteratorNormalCompletion2=true;var _didIteratorError2=false;var _iteratorError2=undefined;try{for(var _iterator2=adaptation.SupplementalProperty_asArray[Symbol.iterator](),_step2;!(_iteratorNormalCompletion2=(_step2=_iterator2.next()).done);_iteratorNormalCompletion2=true){var sp=_step2.value;if(sp.hasOwnProperty(_Constants2.default.SCHEME_ID_URI)&&sp.hasOwnProperty(_DashConstants2.default.VALUE)){supplementalProperties[sp[_Constants2.default.SCHEME_ID_URI]]=sp[_DashConstants2.default.VALUE];}}}catch(err){_didIteratorError2=true;_iteratorError2=err;}finally{try{if(!_iteratorNormalCompletion2&&_iterator2.return){_iterator2.return();}}finally{if(_didIteratorError2){throw _iteratorError2;}}}}return supplementalProperties;}function setConfig(config){if(!config)return;if(config.errHandler){errHandler=config.errHandler;}if(config.BASE64){BASE64=config.BASE64;}}instance={getIsTypeOf:getIsTypeOf,getIsTextTrack:getIsTextTrack,getLanguageForAdaptation:getLanguageForAdaptation,getViewpointForAdaptation:getViewpointForAdaptation,getRolesForAdaptation:getRolesForAdaptation,getAccessibilityForAdaptation:getAccessibilityForAdaptation,getAudioChannelConfigurationForAdaptation:getAudioChannelConfigurationForAdaptation,getAudioChannelConfigurationForRepresentation:getAudioChannelConfigurationForRepresentation,getAdaptationForIndex:getAdaptationForIndex,getIndexForAdaptation:getIndexForAdaptation,getAdaptationForId:getAdaptationForId,getAdaptationsForType:getAdaptationsForType,getCodec:getCodec,getMimeType:getMimeType,getKID:getKID,getLabelsForAdaptation:getLabelsForAdaptation,getContentProtectionData:getContentProtectionData,getIsDynamic:getIsDynamic,hasProfile:hasProfile,getDuration:getDuration,getBandwidth:getBandwidth,getManifestUpdatePeriod:getManifestUpdatePeriod,getRepresentationCount:getRepresentationCount,getBitrateListForAdaptation:getBitrateListForAdaptation,getRepresentationFor:getRepresentationFor,getRepresentationsForAdaptation:getRepresentationsForAdaptation,getAdaptationsForPeriod:getAdaptationsForPeriod,getRegularPeriods:getRegularPeriods,getMpd:getMpd,getEventsForPeriod:getEventsForPeriod,getEventStreamForAdaptationSet:getEventStreamForAdaptationSet,getEventStreamForRepresentation:getEventStreamForRepresentation,getUTCTimingSources:getUTCTimingSources,getBaseURLsFromElement:getBaseURLsFromElement,getRepresentationSortFunction:getRepresentationSortFunction,getLocation:getLocation,getUseCalculatedLiveEdgeTimeForAdaptation:getUseCalculatedLiveEdgeTimeForAdaptation,getSuggestedPresentationDelay:getSuggestedPresentationDelay,getAvailabilityStartTime:getAvailabilityStartTime,getServiceDescriptions:getServiceDescriptions,getSupplementalPropperties:getSupplementalPropperties,setConfig:setConfig};setup();return instance;}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n */DashManifestModel.__dashjs_factory_name='DashManifestModel';exports.default=_FactoryMaker2.default.getSingletonFactory(DashManifestModel);\n//# sourceMappingURL=DashManifestModel.js.map\n","var toInteger = require('../internals/to-integer');\n\nvar min = Math.min;\n\n// `ToLength` abstract operation\n// https://tc39.github.io/ecma262/#sec-tolength\nmodule.exports = function (argument) {\n  return argument > 0 ? min(toInteger(argument), 0x1FFFFFFFFFFFFF) : 0; // 2 ** 53 - 1 == 9007199254740991\n};\n","var hasOwnProperty = {}.hasOwnProperty;\n\nmodule.exports = function (it, key) {\n  return hasOwnProperty.call(it, key);\n};\n","'use strict';\n\nvar utils = require('./../utils');\nvar transformData = require('./transformData');\nvar isCancel = require('../cancel/isCancel');\nvar defaults = require('../defaults');\n\n/**\n * Throws a `Cancel` if cancellation has been requested.\n */\nfunction throwIfCancellationRequested(config) {\n  if (config.cancelToken) {\n    config.cancelToken.throwIfRequested();\n  }\n}\n\n/**\n * Dispatch a request to the server using the configured adapter.\n *\n * @param {object} config The config that is to be used for the request\n * @returns {Promise} The Promise to be fulfilled\n */\nmodule.exports = function dispatchRequest(config) {\n  throwIfCancellationRequested(config);\n\n  // Ensure headers exist\n  config.headers = config.headers || {};\n\n  // Transform request data\n  config.data = transformData(\n    config.data,\n    config.headers,\n    config.transformRequest\n  );\n\n  // Flatten headers\n  config.headers = utils.merge(\n    config.headers.common || {},\n    config.headers[config.method] || {},\n    config.headers\n  );\n\n  utils.forEach(\n    ['delete', 'get', 'head', 'post', 'put', 'patch', 'common'],\n    function cleanHeaderConfig(method) {\n      delete config.headers[method];\n    }\n  );\n\n  var adapter = config.adapter || defaults.adapter;\n\n  return adapter(config).then(function onAdapterResolution(response) {\n    throwIfCancellationRequested(config);\n\n    // Transform response data\n    response.data = transformData(\n      response.data,\n      response.headers,\n      config.transformResponse\n    );\n\n    return response;\n  }, function onAdapterRejection(reason) {\n    if (!isCancel(reason)) {\n      throwIfCancellationRequested(config);\n\n      // Transform response data\n      if (reason && reason.response) {\n        reason.response.data = transformData(\n          reason.response.data,\n          reason.response.headers,\n          config.transformResponse\n        );\n      }\n    }\n\n    return Promise.reject(reason);\n  });\n};\n","function _setPrototypeOf(o, p) {\n  module.exports = _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) {\n    o.__proto__ = p;\n    return o;\n  };\n\n  module.exports[\"default\"] = module.exports, module.exports.__esModule = true;\n  return _setPrototypeOf(o, p);\n}\n\nmodule.exports = _setPrototypeOf;\nmodule.exports[\"default\"] = module.exports, module.exports.__esModule = true;","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _CommonEncryption=require('../CommonEncryption');var _CommonEncryption2=_interopRequireDefault(_CommonEncryption);var _ProtectionConstants=require('../../constants/ProtectionConstants');var _ProtectionConstants2=_interopRequireDefault(_ProtectionConstants);function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n *//**\n * Google Widevine DRM\n *\n * @class\n * @implements MediaPlayer.dependencies.protection.KeySystem\n */var uuid='edef8ba9-79d6-4ace-a3c8-27dcd51d21ed';var systemString=_ProtectionConstants2.default.WIDEVINE_KEYSTEM_STRING;var schemeIdURI='urn:uuid:'+uuid;function KeySystemWidevine(config){config=config||{};var instance=void 0;var protData=null;var BASE64=config.BASE64;function init(protectionData){if(protectionData){protData=protectionData;}}function getInitData(cp){return _CommonEncryption2.default.parseInitDataFromContentProtection(cp,BASE64);}function getRequestHeadersFromMessage()/*message*/{return null;}function getLicenseRequestFromMessage(message){return new Uint8Array(message);}function getLicenseServerURLFromInitData()/*initData*/{return null;}function getCDMData(){return null;}function getSessionId(cp){// Get sessionId from protectionData or from manifest\nif(protData&&protData.sessionId){return protData.sessionId;}else if(cp&&cp.sessionId){return cp.sessionId;}return null;}instance={uuid:uuid,schemeIdURI:schemeIdURI,systemString:systemString,init:init,getInitData:getInitData,getRequestHeadersFromMessage:getRequestHeadersFromMessage,getLicenseRequestFromMessage:getLicenseRequestFromMessage,getLicenseServerURLFromInitData:getLicenseServerURLFromInitData,getCDMData:getCDMData,getSessionId:getSessionId};return instance;}KeySystemWidevine.__dashjs_factory_name='KeySystemWidevine';exports.default=dashjs.FactoryMaker.getSingletonFactory(KeySystemWidevine);/* jshint ignore:line */\n//# sourceMappingURL=KeySystemWidevine.js.map\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _EBMLParser=require('../streaming/utils/EBMLParser');var _EBMLParser2=_interopRequireDefault(_EBMLParser);var _Constants=require('../streaming/constants/Constants');var _Constants2=_interopRequireDefault(_Constants);var _FactoryMaker=require('../core/FactoryMaker');var _FactoryMaker2=_interopRequireDefault(_FactoryMaker);var _Segment=require('./vo/Segment');var _Segment2=_interopRequireDefault(_Segment);var _FragmentRequest=require('../streaming/vo/FragmentRequest');var _FragmentRequest2=_interopRequireDefault(_FragmentRequest);var _URLLoader=require('../streaming/net/URLLoader');var _URLLoader2=_interopRequireDefault(_URLLoader);var _DashJSError=require('../streaming/vo/DashJSError');var _DashJSError2=_interopRequireDefault(_DashJSError);function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}function WebmSegmentBaseLoader(){var context=this.context;var instance=void 0,logger=void 0,WebM=void 0,errHandler=void 0,requestModifier=void 0,dashMetrics=void 0,mediaPlayerModel=void 0,urlLoader=void 0,settings=void 0,eventBus=void 0,events=void 0,errors=void 0,baseURLController=void 0;function setup(){WebM={EBML:{tag:0x1A45DFA3,required:true},Segment:{tag:0x18538067,required:true,SeekHead:{tag:0x114D9B74,required:true},Info:{tag:0x1549A966,required:true,TimecodeScale:{tag:0x2AD7B1,required:true,parse:'getMatroskaUint'},Duration:{tag:0x4489,required:true,parse:'getMatroskaFloat'}},Tracks:{tag:0x1654AE6B,required:true},Cues:{tag:0x1C53BB6B,required:true,CuePoint:{tag:0xBB,required:true,CueTime:{tag:0xB3,required:true,parse:'getMatroskaUint'},CueTrackPositions:{tag:0xB7,required:true,CueTrack:{tag:0xF7,required:true,parse:'getMatroskaUint'},CueClusterPosition:{tag:0xF1,required:true,parse:'getMatroskaUint'}}}}},Void:{tag:0xEC,required:true}};}function initialize(){urlLoader=(0,_URLLoader2.default)(context).create({errHandler:errHandler,dashMetrics:dashMetrics,mediaPlayerModel:mediaPlayerModel,requestModifier:requestModifier,useFetch:settings?settings.get().streaming.lowLatencyEnabled:null,errors:errors});}function setConfig(config){if(!config.baseURLController||!config.dashMetrics||!config.mediaPlayerModel||!config.errHandler){throw new Error(_Constants2.default.MISSING_CONFIG_ERROR);}baseURLController=config.baseURLController;dashMetrics=config.dashMetrics;mediaPlayerModel=config.mediaPlayerModel;errHandler=config.errHandler;settings=config.settings;events=config.events;eventBus=config.eventBus;errors=config.errors;logger=config.debug.getLogger(instance);requestModifier=config.requestModifier;}function parseCues(ab){var cues=[];var ebmlParser=(0,_EBMLParser2.default)(context).create({data:ab});var cue=void 0,cueTrack=void 0;ebmlParser.consumeTagAndSize(WebM.Segment.Cues);while(ebmlParser.moreData()&&ebmlParser.consumeTagAndSize(WebM.Segment.Cues.CuePoint,true)){cue={};cue.CueTime=ebmlParser.parseTag(WebM.Segment.Cues.CuePoint.CueTime);cue.CueTracks=[];while(ebmlParser.moreData()&&ebmlParser.consumeTag(WebM.Segment.Cues.CuePoint.CueTrackPositions,true)){var cueTrackPositionSize=ebmlParser.getMatroskaCodedNum();var startPos=ebmlParser.getPos();cueTrack={};cueTrack.Track=ebmlParser.parseTag(WebM.Segment.Cues.CuePoint.CueTrackPositions.CueTrack);if(cueTrack.Track===0){throw new Error('Cue track cannot be 0');}cueTrack.ClusterPosition=ebmlParser.parseTag(WebM.Segment.Cues.CuePoint.CueTrackPositions.CueClusterPosition);cue.CueTracks.push(cueTrack);// we're not interested any other elements - skip remaining bytes\nebmlParser.setPos(startPos+cueTrackPositionSize);}if(cue.CueTracks.length===0){throw new Error('Mandatory cuetrack not found');}cues.push(cue);}if(cues.length===0){throw new Error('mandatory cuepoint not found');}return cues;}function parseSegments(data,segmentStart,segmentEnd,segmentDuration){var duration=void 0,parsed=void 0,segments=void 0,segment=void 0,i=void 0,len=void 0,start=void 0,end=void 0;parsed=parseCues(data);segments=[];// we are assuming one cue track per cue point\n// both duration and media range require the i + 1 segment\n// the final segment has to use global segment parameters\nfor(i=0,len=parsed.length;i<len;i+=1){segment=new _Segment2.default();duration=0;if(i<parsed.length-1){duration=parsed[i+1].CueTime-parsed[i].CueTime;}else{duration=segmentDuration-parsed[i].CueTime;}// note that we don't explicitly set segment.media as this will be\n// computed when all BaseURLs are resolved later\nsegment.duration=duration;segment.startTime=parsed[i].CueTime;segment.timescale=1000;// hardcoded for ms\nstart=parsed[i].CueTracks[0].ClusterPosition+segmentStart;if(i<parsed.length-1){end=parsed[i+1].CueTracks[0].ClusterPosition+segmentStart-1;}else{end=segmentEnd-1;}segment.mediaRange=start+'-'+end;segments.push(segment);}logger.debug('Parsed cues: '+segments.length+' cues.');return segments;}function parseEbmlHeader(data,media,theRange,callback){if(!data||data.byteLength===0){callback(null);return;}var ebmlParser=(0,_EBMLParser2.default)(context).create({data:data});var duration=void 0,segments=void 0,segmentEnd=void 0,segmentStart=void 0;var parts=theRange?theRange.split('-'):null;var request=null;var info={url:media,range:{start:parts?parseFloat(parts[0]):null,end:parts?parseFloat(parts[1]):null},request:request};logger.debug('Parse EBML header: '+info.url);// skip over the header itself\nebmlParser.skipOverElement(WebM.EBML);ebmlParser.consumeTag(WebM.Segment);// segments start here\nsegmentEnd=ebmlParser.getMatroskaCodedNum();segmentEnd+=ebmlParser.getPos();segmentStart=ebmlParser.getPos();// skip over any top level elements to get to the segment info\nwhile(ebmlParser.moreData()&&!ebmlParser.consumeTagAndSize(WebM.Segment.Info,true)){if(!(ebmlParser.skipOverElement(WebM.Segment.SeekHead,true)||ebmlParser.skipOverElement(WebM.Segment.Tracks,true)||ebmlParser.skipOverElement(WebM.Segment.Cues,true)||ebmlParser.skipOverElement(WebM.Void,true))){throw new Error('no valid top level element found');}}// we only need one thing in segment info, duration\nwhile(duration===undefined){var infoTag=ebmlParser.getMatroskaCodedNum(true);var infoElementSize=ebmlParser.getMatroskaCodedNum();switch(infoTag){case WebM.Segment.Info.Duration.tag:duration=ebmlParser[WebM.Segment.Info.Duration.parse](infoElementSize);break;default:ebmlParser.setPos(ebmlParser.getPos()+infoElementSize);break;}}// once we have what we need from segment info, we jump right to the\n// cues\nrequest=getFragmentRequest(info);var onload=function onload(response){segments=parseSegments(response,segmentStart,segmentEnd,duration);callback(segments);};var onloadend=function onloadend(){logger.error('Download Error: Cues '+info.url);callback(null);};urlLoader.load({request:request,success:onload,error:onloadend});logger.debug('Perform cues load: '+info.url+' bytes='+info.range.start+'-'+info.range.end);}function checkConfig(){if(!baseURLController||!baseURLController.hasOwnProperty('resolve')){throw new Error('setConfig function has to be called previously');}}function loadInitialization(representation,loadingInfo){checkConfig();var request=null;var baseUrl=representation?baseURLController.resolve(representation.path):null;var initRange=representation?representation.range.split('-'):null;var info=loadingInfo||{range:{start:initRange?parseFloat(initRange[0]):null,end:initRange?parseFloat(initRange[1]):null},request:request,url:baseUrl?baseUrl.url:undefined,init:true,mediaType:representation&&representation.adaptation?representation.adaptation.type:null};logger.info('Start loading initialization.');request=getFragmentRequest(info);var onload=function onload(){// note that we don't explicitly set rep.initialization as this\n// will be computed when all BaseURLs are resolved later\neventBus.trigger(events.INITIALIZATION_LOADED,{representation:representation});};var onloadend=function onloadend(){eventBus.trigger(events.INITIALIZATION_LOADED,{representation:representation});};urlLoader.load({request:request,success:onload,error:onloadend});logger.debug('Perform init load: '+info.url);}function loadSegments(representation,type,theRange,callback){checkConfig();var request=null;var baseUrl=representation?baseURLController.resolve(representation.path):null;var media=baseUrl?baseUrl.url:undefined;var bytesToLoad=8192;var info={bytesLoaded:0,bytesToLoad:bytesToLoad,range:{start:0,end:bytesToLoad},request:request,url:media,init:false,mediaType:representation&&representation.adaptation?representation.adaptation.type:null};callback=!callback?onLoaded:callback;request=getFragmentRequest(info);// first load the header, but preserve the manifest range so we can\n// load the cues after parsing the header\n// NOTE: we expect segment info to appear in the first 8192 bytes\nlogger.debug('Parsing ebml header');var onload=function onload(response){parseEbmlHeader(response,media,theRange,function(segments){callback(segments,representation,type);});};var onloadend=function onloadend(){callback(null,representation,type);};urlLoader.load({request:request,success:onload,error:onloadend});}function onLoaded(segments,representation,type){if(segments){eventBus.trigger(events.SEGMENTS_LOADED,{segments:segments,representation:representation,mediaType:type});}else{eventBus.trigger(events.SEGMENTS_LOADED,{segments:null,representation:representation,mediaType:type,error:new _DashJSError2.default(errors.SEGMENT_BASE_LOADER_ERROR_CODE,errors.SEGMENT_BASE_LOADER_ERROR_MESSAGE)});}}function getFragmentRequest(info){var request=new _FragmentRequest2.default();request.setInfo(info);return request;}function reset(){errHandler=null;requestModifier=null;}instance={setConfig:setConfig,initialize:initialize,loadInitialization:loadInitialization,loadSegments:loadSegments,reset:reset};setup();return instance;}WebmSegmentBaseLoader.__dashjs_factory_name='WebmSegmentBaseLoader';exports.default=_FactoryMaker2.default.getSingletonFactory(WebmSegmentBaseLoader);\n//# sourceMappingURL=WebmSegmentBaseLoader.js.map\n","/* \r\n * Copyright (c) 2016, Pierre-Anthony Lemieux <pal@sandflow.com>\r\n * All rights reserved.\r\n *\r\n * Redistribution and use in source and binary forms, with or without\r\n * modification, are permitted provided that the following conditions are met:\r\n *\r\n * * Redistributions of source code must retain the above copyright notice, this\r\n *   list of conditions and the following disclaimer.\r\n * * Redistributions in binary form must reproduce the above copyright notice,\r\n *   this list of conditions and the following disclaimer in the documentation\r\n *   and/or other materials provided with the distribution.\r\n *\r\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS \"AS IS\"\r\n * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE\r\n * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE\r\n * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE\r\n * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR\r\n * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF\r\n * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS\r\n * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN\r\n * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\r\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\r\n * POSSIBILITY OF SUCH DAMAGE.\r\n */\r\n\r\nexports.generateISD = require('./isd').generateISD;\r\nexports.fromXML = require('./doc').fromXML;\r\nexports.renderHTML = require('./html').render;","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _Constants=require('../constants/Constants');var _Constants2=_interopRequireDefault(_Constants);var _FactoryMaker=require('../../core/FactoryMaker');var _FactoryMaker2=_interopRequireDefault(_FactoryMaker);var _TextSourceBuffer=require('./TextSourceBuffer');var _TextSourceBuffer2=_interopRequireDefault(_TextSourceBuffer);var _TextTracks=require('./TextTracks');var _TextTracks2=_interopRequireDefault(_TextTracks);var _VTTParser=require('../utils/VTTParser');var _VTTParser2=_interopRequireDefault(_VTTParser);var _TTMLParser=require('../utils/TTMLParser');var _TTMLParser2=_interopRequireDefault(_TTMLParser);var _EventBus=require('../../core/EventBus');var _EventBus2=_interopRequireDefault(_EventBus);var _Events=require('../../core/events/Events');var _Events2=_interopRequireDefault(_Events);var _SupervisorTools=require('../utils/SupervisorTools');function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}function TextController(){var context=this.context;var instance=void 0,textSourceBuffer=void 0,errHandler=void 0,adapter=void 0,manifestModel=void 0,mediaController=void 0,videoModel=void 0,streamController=void 0,textTracks=void 0,vttParser=void 0,ttmlParser=void 0,eventBus=void 0,defaultLanguage=void 0,lastEnabledIndex=void 0,textDefaultEnabled=void 0,// this is used for default settings (each time a file is loaded, we check value of this settings )\nallTracksAreDisabled=void 0,// this is used for one session (when a file has been loaded, we use this settings to enable/disable text)\nforceTextStreaming=void 0,previousPeriodSelectedTrack=void 0;function setup(){defaultLanguage='';lastEnabledIndex=-1;textDefaultEnabled=true;forceTextStreaming=false;textTracks=(0,_TextTracks2.default)(context).getInstance();vttParser=(0,_VTTParser2.default)(context).getInstance();ttmlParser=(0,_TTMLParser2.default)(context).getInstance();textSourceBuffer=(0,_TextSourceBuffer2.default)(context).getInstance();eventBus=(0,_EventBus2.default)(context).getInstance();textTracks.initialize();eventBus.on(_Events2.default.TEXT_TRACKS_QUEUE_INITIALIZED,onTextTracksAdded,instance);/*\n        * register those event callbacks in order to detect switch of periods and set\n        * correctly the selected track index in the new period.\n        * there is different cases :\n        *   - switch occurs after a seek command from the user\n        *   - switch occurs but codecs in streams are different\n        *   - switch occurs and codecs in streams are not different\n        */eventBus.on(_Events2.default.PERIOD_SWITCH_STARTED,onPeriodSwitchStarted,instance);eventBus.on(_Events2.default.STREAM_COMPLETED,onStreamCompleted,instance);eventBus.on(_Events2.default.PERIOD_SWITCH_COMPLETED,onPeriodSwitchCompleted,instance);resetInitialSettings();}function onPeriodSwitchStarted(e){if(previousPeriodSelectedTrack===undefined&&e.fromStreamInfo!==null/* test if this is the first period */){previousPeriodSelectedTrack=this.getCurrentTrackIdx();}}function onStreamCompleted(){if(previousPeriodSelectedTrack===undefined){previousPeriodSelectedTrack=this.getCurrentTrackIdx();}}function onPeriodSwitchCompleted(){if(previousPeriodSelectedTrack!==undefined){this.setTextTrack(previousPeriodSelectedTrack);previousPeriodSelectedTrack=undefined;}}function setConfig(config){if(!config){return;}if(config.errHandler){errHandler=config.errHandler;}if(config.adapter){adapter=config.adapter;}if(config.manifestModel){manifestModel=config.manifestModel;}if(config.mediaController){mediaController=config.mediaController;}if(config.videoModel){videoModel=config.videoModel;}if(config.streamController){streamController=config.streamController;}if(config.textTracks){textTracks=config.textTracks;}if(config.vttParser){vttParser=config.vttParser;}if(config.ttmlParser){ttmlParser=config.ttmlParser;}// create config for source buffer\ntextSourceBuffer.setConfig({errHandler:errHandler,adapter:adapter,manifestModel:manifestModel,mediaController:mediaController,videoModel:videoModel,streamController:streamController,textTracks:textTracks,vttParser:vttParser,ttmlParser:ttmlParser});}function getTextSourceBuffer(){return textSourceBuffer;}function getAllTracksAreDisabled(){return allTracksAreDisabled;}function addEmbeddedTrack(mediaInfo){textSourceBuffer.addEmbeddedTrack(mediaInfo);}function setTextDefaultLanguage(lang){(0,_SupervisorTools.checkParameterType)(lang,'string');defaultLanguage=lang;}function getTextDefaultLanguage(){return defaultLanguage;}function onTextTracksAdded(e){var _this=this;var tracks=e.tracks;var index=e.index;tracks.some(function(item,idx){if(item.lang===defaultLanguage){_this.setTextTrack(idx);index=idx;return true;}});if(!textDefaultEnabled){// disable text at startup\nthis.setTextTrack(-1);}lastEnabledIndex=index;eventBus.trigger(_Events2.default.TEXT_TRACKS_ADDED,{enabled:isTextEnabled(),index:index,tracks:tracks});}function setTextDefaultEnabled(enable){(0,_SupervisorTools.checkParameterType)(enable,'boolean');textDefaultEnabled=enable;if(!textDefaultEnabled){// disable text at startup\nthis.setTextTrack(-1);}}function getTextDefaultEnabled(){return textDefaultEnabled;}function enableText(enable){(0,_SupervisorTools.checkParameterType)(enable,'boolean');if(isTextEnabled()!==enable){// change track selection\nif(enable){// apply last enabled tractk\nthis.setTextTrack(lastEnabledIndex);}if(!enable){// keep last index and disable text track\nlastEnabledIndex=this.getCurrentTrackIdx();this.setTextTrack(-1);}}}function isTextEnabled(){var enabled=true;if(allTracksAreDisabled&&!forceTextStreaming){enabled=false;}return enabled;}// when set to true NextFragmentRequestRule will allow schedule of chunks even if tracks are all disabled. Allowing streaming to hidden track for external players to work with.\nfunction enableForcedTextStreaming(enable){(0,_SupervisorTools.checkParameterType)(enable,'boolean');forceTextStreaming=enable;}function setTextTrack(idx){//For external time text file,  the only action needed to change a track is marking the track mode to showing.\n// Fragmented text tracks need the additional step of calling TextController.setTextTrack();\nvar config=textSourceBuffer.getConfig();var fragmentModel=config.fragmentModel;var fragmentedTracks=config.fragmentedTracks;var videoModel=config.videoModel;var mediaInfosArr=void 0,streamProcessor=void 0;allTracksAreDisabled=idx===-1?true:false;var oldTrackIdx=textTracks.getCurrentTrackIdx();if(oldTrackIdx!==idx){textTracks.setModeForTrackIdx(oldTrackIdx,_Constants2.default.TEXT_HIDDEN);textTracks.setCurrentTrackIdx(idx);textTracks.setModeForTrackIdx(idx,_Constants2.default.TEXT_SHOWING);var currentTrackInfo=textTracks.getCurrentTrackInfo();if(currentTrackInfo&&currentTrackInfo.isFragmented&&!currentTrackInfo.isEmbedded){for(var i=0;i<fragmentedTracks.length;i++){var mediaInfo=fragmentedTracks[i];if(currentTrackInfo.lang===mediaInfo.lang&&currentTrackInfo.index===mediaInfo.index&&(mediaInfo.id?currentTrackInfo.id===mediaInfo.id:currentTrackInfo.id===mediaInfo.index)){var currentFragTrack=mediaController.getCurrentTrackFor(_Constants2.default.FRAGMENTED_TEXT,streamController.getActiveStreamInfo());if(mediaInfo!==currentFragTrack){fragmentModel.abortRequests();fragmentModel.removeExecutedRequestsBeforeTime();textSourceBuffer.remove();textTracks.deleteCuesFromTrackIdx(oldTrackIdx);mediaController.setTrack(mediaInfo);textSourceBuffer.setCurrentFragmentedTrackIdx(i);}else if(oldTrackIdx===-1){//in fragmented use case, if the user selects the older track (the one selected before disabled text track)\n//no CURRENT_TRACK_CHANGED event will be trigger, so dashHandler current time has to be updated and the scheduleController\n//has to be restarted.\nvar streamProcessors=streamController.getActiveStreamProcessors();for(var _i=0;_i<streamProcessors.length;_i++){if(streamProcessors[_i].getType()===_Constants2.default.FRAGMENTED_TEXT){streamProcessor=streamProcessors[_i];break;}}streamProcessor.setIndexHandlerTime(videoModel.getTime());streamProcessor.getScheduleController().start();}}}}else if(currentTrackInfo&&!currentTrackInfo.isFragmented){var _streamProcessors=streamController.getActiveStreamProcessors();for(var _i2=0;_i2<_streamProcessors.length;_i2++){if(_streamProcessors[_i2].getType()===_Constants2.default.TEXT){streamProcessor=_streamProcessors[_i2];mediaInfosArr=streamProcessor.getMediaInfoArr();break;}}if(streamProcessor&&mediaInfosArr){for(var _i3=0;_i3<mediaInfosArr.length;_i3++){if(mediaInfosArr[_i3].index===currentTrackInfo.index&&mediaInfosArr[_i3].lang===currentTrackInfo.lang){streamProcessor.selectMediaInfo(mediaInfosArr[_i3]);break;}}}}}}function getCurrentTrackIdx(){return textTracks.getCurrentTrackIdx();}function resetInitialSettings(){allTracksAreDisabled=false;}function reset(){resetInitialSettings();textSourceBuffer.resetEmbedded();textSourceBuffer.reset();}instance={setConfig:setConfig,getTextSourceBuffer:getTextSourceBuffer,getAllTracksAreDisabled:getAllTracksAreDisabled,addEmbeddedTrack:addEmbeddedTrack,getTextDefaultLanguage:getTextDefaultLanguage,setTextDefaultLanguage:setTextDefaultLanguage,setTextDefaultEnabled:setTextDefaultEnabled,getTextDefaultEnabled:getTextDefaultEnabled,enableText:enableText,isTextEnabled:isTextEnabled,setTextTrack:setTextTrack,getCurrentTrackIdx:getCurrentTrackIdx,enableForcedTextStreaming:enableForcedTextStreaming,reset:reset};setup();return instance;}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n */TextController.__dashjs_factory_name='TextController';exports.default=_FactoryMaker2.default.getSingletonFactory(TextController);\n//# sourceMappingURL=TextController.js.map\n","var IS_PURE = require('../internals/is-pure');\nvar store = require('../internals/shared-store');\n\n(module.exports = function (key, value) {\n  return store[key] || (store[key] = value !== undefined ? value : {});\n})('versions', []).push({\n  version: '3.6.5',\n  mode: IS_PURE ? 'pure' : 'global',\n  copyright: '© 2020 Denis Pushkarev (zloirock.ru)'\n});\n","var getBuiltIn = require('../internals/get-built-in');\nvar getOwnPropertyNamesModule = require('../internals/object-get-own-property-names');\nvar getOwnPropertySymbolsModule = require('../internals/object-get-own-property-symbols');\nvar anObject = require('../internals/an-object');\n\n// all object keys, includes non-enumerable and symbols\nmodule.exports = getBuiltIn('Reflect', 'ownKeys') || function ownKeys(it) {\n  var keys = getOwnPropertyNamesModule.f(anObject(it));\n  var getOwnPropertySymbols = getOwnPropertySymbolsModule.f;\n  return getOwnPropertySymbols ? keys.concat(getOwnPropertySymbols(it)) : keys;\n};\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _KeyPair=require('../vo/KeyPair');var _KeyPair2=_interopRequireDefault(_KeyPair);var _ClearKeyKeySet=require('../vo/ClearKeyKeySet');var _ClearKeyKeySet2=_interopRequireDefault(_ClearKeyKeySet);var _CommonEncryption=require('../CommonEncryption');var _CommonEncryption2=_interopRequireDefault(_CommonEncryption);var _ProtectionConstants=require('../../constants/ProtectionConstants');var _ProtectionConstants2=_interopRequireDefault(_ProtectionConstants);function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n */var uuid='1077efec-c0b2-4d02-ace3-3c1e52e2fb4b';var systemString=_ProtectionConstants2.default.CLEARKEY_KEYSTEM_STRING;var schemeIdURI='urn:uuid:'+uuid;function KeySystemW3CClearKey(config){var instance=void 0;var BASE64=config.BASE64;var logger=config.debug.getLogger(instance);/**\n     * Returns desired clearkeys (as specified in the CDM message) from protection data\n     *\n     * @param {ProtectionData} protectionData the protection data\n     * @param {ArrayBuffer} message the ClearKey CDM message\n     * @returns {ClearKeyKeySet} the key set or null if none found\n     * @throws {Error} if a keyID specified in the CDM message was not found in the\n     * protection data\n     * @memberof KeySystemClearKey\n     */function getClearKeysFromProtectionData(protectionData,message){var clearkeySet=null;if(protectionData){// ClearKey is the only system that does not require a license server URL, so we\n// handle it here when keys are specified in protection data\nvar jsonMsg=JSON.parse(String.fromCharCode.apply(null,new Uint8Array(message)));var keyPairs=[];for(var i=0;i<jsonMsg.kids.length;i++){var clearkeyID=jsonMsg.kids[i];var clearkey=protectionData.clearkeys&&protectionData.clearkeys.hasOwnProperty(clearkeyID)?protectionData.clearkeys[clearkeyID]:null;if(!clearkey){throw new Error('DRM: ClearKey keyID ('+clearkeyID+') is not known!');}// KeyIDs from CDM are not base64 padded.  Keys may or may not be padded\nkeyPairs.push(new _KeyPair2.default(clearkeyID,clearkey));}clearkeySet=new _ClearKeyKeySet2.default(keyPairs);logger.warn('ClearKey schemeIdURI is using W3C Common PSSH systemID (1077efec-c0b2-4d02-ace3-3c1e52e2fb4b) in Content Protection. See DASH-IF IOP v4.1 section 7.6.2.4');}return clearkeySet;}function getInitData(cp){return _CommonEncryption2.default.parseInitDataFromContentProtection(cp,BASE64);}function getRequestHeadersFromMessage()/*message*/{return null;}function getLicenseRequestFromMessage(message){return new Uint8Array(message);}function getLicenseServerURLFromInitData()/*initData*/{return null;}function getCDMData(){return null;}function getSessionId()/*cp*/{return null;}instance={uuid:uuid,schemeIdURI:schemeIdURI,systemString:systemString,getInitData:getInitData,getRequestHeadersFromMessage:getRequestHeadersFromMessage,getLicenseRequestFromMessage:getLicenseRequestFromMessage,getLicenseServerURLFromInitData:getLicenseServerURLFromInitData,getCDMData:getCDMData,getSessionId:getSessionId,getClearKeysFromProtectionData:getClearKeysFromProtectionData};return instance;}KeySystemW3CClearKey.__dashjs_factory_name='KeySystemW3CClearKey';exports.default=dashjs.FactoryMaker.getSingletonFactory(KeySystemW3CClearKey);/* jshint ignore:line */\n//# sourceMappingURL=KeySystemW3CClearKey.js.map\n","// a string of all valid unicode whitespaces\n// eslint-disable-next-line max-len\nmodule.exports = '\\u0009\\u000A\\u000B\\u000C\\u000D\\u0020\\u00A0\\u1680\\u2000\\u2001\\u2002\\u2003\\u2004\\u2005\\u2006\\u2007\\u2008\\u2009\\u200A\\u202F\\u205F\\u3000\\u2028\\u2029\\uFEFF';\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _EventBus=require('./EventBus');var _EventBus2=_interopRequireDefault(_EventBus);var _Events=require('./events/Events');var _Events2=_interopRequireDefault(_Events);var _FactoryMaker=require('./FactoryMaker');var _FactoryMaker2=_interopRequireDefault(_FactoryMaker);function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}var LOG_LEVEL_NONE=0;/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n */var LOG_LEVEL_FATAL=1;var LOG_LEVEL_ERROR=2;var LOG_LEVEL_WARNING=3;var LOG_LEVEL_INFO=4;var LOG_LEVEL_DEBUG=5;/**\n * @module Debug\n * @param {object} config\n * @ignore\n */function Debug(config){config=config||{};var context=this.context;var eventBus=(0,_EventBus2.default)(context).getInstance();var settings=config.settings;var logFn=[];var instance=void 0,showLogTimestamp=void 0,showCalleeName=void 0,startTime=void 0;function setup(){showLogTimestamp=true;showCalleeName=true;startTime=new Date().getTime();if(typeof window!=='undefined'&&window.console){logFn[LOG_LEVEL_FATAL]=getLogFn(window.console.error);logFn[LOG_LEVEL_ERROR]=getLogFn(window.console.error);logFn[LOG_LEVEL_WARNING]=getLogFn(window.console.warn);logFn[LOG_LEVEL_INFO]=getLogFn(window.console.info);logFn[LOG_LEVEL_DEBUG]=getLogFn(window.console.debug);}}function getLogFn(fn){if(fn&&fn.bind){return fn.bind(window.console);}// if not define, return the default function for reporting logs\nreturn window.console.log.bind(window.console);}/**\n     * Retrieves a logger which can be used to write logging information in browser console.\n     * @param {object} instance Object for which the logger is created. It is used\n     * to include calle object information in log messages.\n     * @memberof module:Debug\n     * @returns {Logger}\n     * @instance\n     */function getLogger(instance){return{fatal:fatal.bind(instance),error:error.bind(instance),warn:warn.bind(instance),info:info.bind(instance),debug:debug.bind(instance)};}/**\n     * Prepends a timestamp in milliseconds to each log message.\n     * @param {boolean} value Set to true if you want to see a timestamp in each log message.\n     * @default LOG_LEVEL_WARNING\n     * @memberof module:Debug\n     * @instance\n     */function setLogTimestampVisible(value){showLogTimestamp=value;}/**\n     * Prepends the callee object name, and media type if available, to each log message.\n     * @param {boolean} value Set to true if you want to see the callee object name and media type in each log message.\n     * @default true\n     * @memberof module:Debug\n     * @instance\n     */function setCalleeNameVisible(value){showCalleeName=value;}function fatal(){for(var _len=arguments.length,params=Array(_len),_key=0;_key<_len;_key++){params[_key]=arguments[_key];}doLog.apply(undefined,[LOG_LEVEL_FATAL,this].concat(params));}function error(){for(var _len2=arguments.length,params=Array(_len2),_key2=0;_key2<_len2;_key2++){params[_key2]=arguments[_key2];}doLog.apply(undefined,[LOG_LEVEL_ERROR,this].concat(params));}function warn(){for(var _len3=arguments.length,params=Array(_len3),_key3=0;_key3<_len3;_key3++){params[_key3]=arguments[_key3];}doLog.apply(undefined,[LOG_LEVEL_WARNING,this].concat(params));}function info(){for(var _len4=arguments.length,params=Array(_len4),_key4=0;_key4<_len4;_key4++){params[_key4]=arguments[_key4];}doLog.apply(undefined,[LOG_LEVEL_INFO,this].concat(params));}function debug(){for(var _len5=arguments.length,params=Array(_len5),_key5=0;_key5<_len5;_key5++){params[_key5]=arguments[_key5];}doLog.apply(undefined,[LOG_LEVEL_DEBUG,this].concat(params));}function doLog(level,_this){var message='';var logTime=null;if(showLogTimestamp){logTime=new Date().getTime();message+='['+(logTime-startTime)+']';}if(showCalleeName&&_this&&_this.getClassName){message+='['+_this.getClassName()+']';if(_this.getType){message+='['+_this.getType()+']';}}if(message.length>0){message+=' ';}for(var _len6=arguments.length,params=Array(_len6>2?_len6-2:0),_key6=2;_key6<_len6;_key6++){params[_key6-2]=arguments[_key6];}Array.apply(null,params).forEach(function(item){message+=item+' ';});// log to console if the log level is high enough\nif(logFn[level]&&settings.get().debug.logLevel>=level){logFn[level](message);}// send log event regardless of log level\neventBus.trigger(_Events2.default.LOG,{message:message,level:level});}instance={getLogger:getLogger,setLogTimestampVisible:setLogTimestampVisible,setCalleeNameVisible:setCalleeNameVisible};setup();return instance;}Debug.__dashjs_factory_name='Debug';var factory=_FactoryMaker2.default.getSingletonFactory(Debug);factory.LOG_LEVEL_NONE=LOG_LEVEL_NONE;factory.LOG_LEVEL_FATAL=LOG_LEVEL_FATAL;factory.LOG_LEVEL_ERROR=LOG_LEVEL_ERROR;factory.LOG_LEVEL_WARNING=LOG_LEVEL_WARNING;factory.LOG_LEVEL_INFO=LOG_LEVEL_INFO;factory.LOG_LEVEL_DEBUG=LOG_LEVEL_DEBUG;_FactoryMaker2.default.updateSingletonFactory(Debug.__dashjs_factory_name,factory);exports.default=factory;\n//# sourceMappingURL=Debug.js.map\n","var requireObjectCoercible = require('../internals/require-object-coercible');\nvar whitespaces = require('../internals/whitespaces');\n\nvar whitespace = '[' + whitespaces + ']';\nvar ltrim = RegExp('^' + whitespace + whitespace + '*');\nvar rtrim = RegExp(whitespace + whitespace + '*$');\n\n// `String.prototype.{ trim, trimStart, trimEnd, trimLeft, trimRight }` methods implementation\nvar createMethod = function (TYPE) {\n  return function ($this) {\n    var string = String(requireObjectCoercible($this));\n    if (TYPE & 1) string = string.replace(ltrim, '');\n    if (TYPE & 2) string = string.replace(rtrim, '');\n    return string;\n  };\n};\n\nmodule.exports = {\n  // `String.prototype.{ trimLeft, trimStart }` methods\n  // https://tc39.github.io/ecma262/#sec-string.prototype.trimstart\n  start: createMethod(1),\n  // `String.prototype.{ trimRight, trimEnd }` methods\n  // https://tc39.github.io/ecma262/#sec-string.prototype.trimend\n  end: createMethod(2),\n  // `String.prototype.trim` method\n  // https://tc39.github.io/ecma262/#sec-string.prototype.trim\n  trim: createMethod(3)\n};\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _DVBReporting=require('./reporters/DVBReporting');var _DVBReporting2=_interopRequireDefault(_DVBReporting);function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}function ReportingFactory(config){config=config||{};var knownReportingSchemeIdUris={'urn:dvb:dash:reporting:2014':_DVBReporting2.default};var context=this.context;var instance=void 0;var logger=config.debug?config.debug.getLogger(instance):{};var metricsConstants=config.metricsConstants;function create(entry,rangeController){var reporting=void 0;try{reporting=knownReportingSchemeIdUris[entry.schemeIdUri](context).create({metricsConstants:metricsConstants});reporting.initialize(entry,rangeController);}catch(e){reporting=null;logger.error('ReportingFactory: could not create Reporting with schemeIdUri '+entry.schemeIdUri+' ('+e.message+')');}return reporting;}function register(schemeIdUri,moduleName){knownReportingSchemeIdUris[schemeIdUri]=moduleName;}function unregister(schemeIdUri){delete knownReportingSchemeIdUris[schemeIdUri];}instance={create:create,register:register,unregister:unregister};return instance;}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n */ReportingFactory.__dashjs_factory_name='ReportingFactory';exports.default=dashjs.FactoryMaker.getSingletonFactory(ReportingFactory);/* jshint ignore:line */\n//# sourceMappingURL=ReportingFactory.js.map\n","/* \r\n * Copyright (c) 2016, Pierre-Anthony Lemieux <pal@sandflow.com>\r\n * All rights reserved.\r\n *\r\n * Redistribution and use in source and binary forms, with or without\r\n * modification, are permitted provided that the following conditions are met:\r\n *\r\n * * Redistributions of source code must retain the above copyright notice, this\r\n *   list of conditions and the following disclaimer.\r\n * * Redistributions in binary form must reproduce the above copyright notice,\r\n *   this list of conditions and the following disclaimer in the documentation\r\n *   and/or other materials provided with the distribution.\r\n *\r\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS \"AS IS\"\r\n * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE\r\n * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE\r\n * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE\r\n * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR\r\n * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF\r\n * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS\r\n * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN\r\n * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\r\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\r\n * POSSIBILITY OF SUCH DAMAGE.\r\n */\r\n\r\n/**\r\n * @module imscNames\r\n */\r\n\r\n;\r\n(function (imscNames) { // wrapper for non-node envs\r\n\r\n    imscNames.ns_tt = \"http://www.w3.org/ns/ttml\";\r\n    imscNames.ns_tts = \"http://www.w3.org/ns/ttml#styling\";\r\n    imscNames.ns_ttp = \"http://www.w3.org/ns/ttml#parameter\";\r\n    imscNames.ns_xml = \"http://www.w3.org/XML/1998/namespace\";\r\n    imscNames.ns_itts = \"http://www.w3.org/ns/ttml/profile/imsc1#styling\";\r\n    imscNames.ns_ittp = \"http://www.w3.org/ns/ttml/profile/imsc1#parameter\";\r\n    imscNames.ns_smpte = \"http://www.smpte-ra.org/schemas/2052-1/2010/smpte-tt\";\r\n    imscNames.ns_ebutts = \"urn:ebu:tt:style\";\r\n    \r\n})(typeof exports === 'undefined' ? this.imscNames = {} : exports);\r\n\r\n\r\n\r\n\r\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _FactoryMaker=require('../../core/FactoryMaker');var _FactoryMaker2=_interopRequireDefault(_FactoryMaker);var _fastDeepEqual=require('fast-deep-equal');var _fastDeepEqual2=_interopRequireDefault(_fastDeepEqual);function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}/**\n * @module ObjectUtils\n * @ignore\n * @description Provides utility functions for objects\n *//**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n */function ObjectUtils(){var instance=void 0;/**\n     * Returns true if objects are equal\n     * @return {boolean}\n     * @param {object} obj1\n     * @param {object} obj2\n     * @memberof module:ObjectUtils\n     * @instance\n     */function areEqual(obj1,obj2){return(0,_fastDeepEqual2.default)(obj1,obj2);}instance={areEqual:areEqual};return instance;}ObjectUtils.__dashjs_factory_name='ObjectUtils';exports.default=_FactoryMaker2.default.getSingletonFactory(ObjectUtils);\n//# sourceMappingURL=ObjectUtils.js.map\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});exports.unescapeDollarsInTemplate=unescapeDollarsInTemplate;exports.replaceIDForTemplate=replaceIDForTemplate;exports.replaceTokenForTemplate=replaceTokenForTemplate;exports.getIndexBasedSegment=getIndexBasedSegment;exports.getTimeBasedSegment=getTimeBasedSegment;var _Segment=require('./../vo/Segment');var _Segment2=_interopRequireDefault(_Segment);function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}function zeroPadToLength(numStr,minStrLength){while(numStr.length<minStrLength){numStr='0'+numStr;}return numStr;}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n */function getNumberForSegment(segment,segmentIndex){return segment.representation.startNumber+segmentIndex;}function unescapeDollarsInTemplate(url){return url?url.split('$$').join('$'):url;}function replaceIDForTemplate(url,value){if(!value||!url||url.indexOf('$RepresentationID$')===-1){return url;}var v=value.toString();return url.split('$RepresentationID$').join(v);}function replaceTokenForTemplate(url,token,value){var formatTag='%0';var startPos=void 0,endPos=void 0,formatTagPos=void 0,specifier=void 0,width=void 0,paddedValue=void 0;var tokenLen=token.length;var formatTagLen=formatTag.length;if(!url){return url;}// keep looping round until all instances of <token> have been\n// replaced. once that has happened, startPos below will be -1\n// and the completed url will be returned.\nwhile(true){// check if there is a valid $<token>...$ identifier\n// if not, return the url as is.\nstartPos=url.indexOf('$'+token);if(startPos<0){return url;}// the next '$' must be the end of the identifier\n// if there isn't one, return the url as is.\nendPos=url.indexOf('$',startPos+tokenLen);if(endPos<0){return url;}// now see if there is an additional format tag suffixed to\n// the identifier within the enclosing '$' characters\nformatTagPos=url.indexOf(formatTag,startPos+tokenLen);if(formatTagPos>startPos&&formatTagPos<endPos){specifier=url.charAt(endPos-1);width=parseInt(url.substring(formatTagPos+formatTagLen,endPos-1),10);// support the minimum specifiers required by IEEE 1003.1\n// (d, i , o, u, x, and X) for completeness\nswitch(specifier){// treat all int types as uint,\n// hence deliberate fallthrough\ncase'd':case'i':case'u':paddedValue=zeroPadToLength(value.toString(),width);break;case'x':paddedValue=zeroPadToLength(value.toString(16),width);break;case'X':paddedValue=zeroPadToLength(value.toString(16),width).toUpperCase();break;case'o':paddedValue=zeroPadToLength(value.toString(8),width);break;default:return url;}}else{paddedValue=value;}url=url.substring(0,startPos)+paddedValue+url.substring(endPos+1);}}function getSegment(representation,duration,presentationStartTime,mediaStartTime,availabilityStartTime,timelineConverter,presentationEndTime,isDynamic,index){var seg=new _Segment2.default();seg.representation=representation;seg.duration=duration;seg.presentationStartTime=presentationStartTime;seg.mediaStartTime=mediaStartTime;seg.availabilityStartTime=availabilityStartTime;seg.availabilityEndTime=timelineConverter.calcAvailabilityEndTimeFromPresentationTime(presentationEndTime,representation.adaptation.period.mpd,isDynamic);seg.wallStartTime=timelineConverter.calcWallTimeForSegment(seg,isDynamic);seg.replacementNumber=getNumberForSegment(seg,index);seg.availabilityIdx=index;return seg;}function isSegmentAvailable(timelineConverter,representation,segment,isDynamic){var periodEnd=timelineConverter.getPeriodEnd(representation,isDynamic);var periodRelativeEnd=timelineConverter.calcPeriodRelativeTimeFromMpdRelativeTime(representation,periodEnd);var segmentTime=timelineConverter.calcPeriodRelativeTimeFromMpdRelativeTime(representation,segment.presentationStartTime);if(segmentTime>=periodRelativeEnd){if(isDynamic){// segment is not available in current period, but it may be segment available in another period that current one (in DVR window)\n// if not (time > segmentAvailabilityRange.end), then return false\nif(representation.segmentAvailabilityRange&&segment.presentationStartTime>=representation.segmentAvailabilityRange.end){return false;}}else{return false;}}return true;}function getIndexBasedSegment(timelineConverter,isDynamic,representation,index){var duration=void 0,presentationStartTime=void 0,presentationEndTime=void 0;duration=representation.segmentDuration;/*\n     * From spec - If neither @duration attribute nor SegmentTimeline element is present, then the Representation\n     * shall contain exactly one Media Segment. The MPD start time is 0 and the MPD duration is obtained\n     * in the same way as for the last Media Segment in the Representation.\n     */if(isNaN(duration)){duration=representation.adaptation.period.duration;}presentationStartTime=parseFloat((representation.adaptation.period.start+index*duration).toFixed(5));presentationEndTime=parseFloat((presentationStartTime+duration).toFixed(5));var segment=getSegment(representation,duration,presentationStartTime,timelineConverter.calcMediaTimeFromPresentationTime(presentationStartTime,representation),timelineConverter.calcAvailabilityStartTimeFromPresentationTime(presentationStartTime,representation.adaptation.period.mpd,isDynamic),timelineConverter,presentationEndTime,isDynamic,index);if(!isSegmentAvailable(timelineConverter,representation,segment,isDynamic)){return null;}return segment;}function getTimeBasedSegment(timelineConverter,isDynamic,representation,time,duration,fTimescale,url,range,index,tManifest){var scaledTime=time/fTimescale;var scaledDuration=Math.min(duration/fTimescale,representation.adaptation.period.mpd.maxSegmentDuration);var presentationStartTime=void 0,presentationEndTime=void 0,seg=void 0;presentationStartTime=timelineConverter.calcPresentationTimeFromMediaTime(scaledTime,representation);presentationEndTime=presentationStartTime+scaledDuration;seg=getSegment(representation,scaledDuration,presentationStartTime,scaledTime,representation.adaptation.period.mpd.manifest.loadedTime,timelineConverter,presentationEndTime,isDynamic,index);if(!isSegmentAvailable(timelineConverter,representation,seg,isDynamic)){return null;}seg.replacementTime=tManifest?tManifest:time;url=replaceTokenForTemplate(url,'Number',seg.replacementNumber);url=replaceTokenForTemplate(url,'Time',seg.replacementTime);seg.media=url;seg.mediaRange=range;return seg;}\n//# sourceMappingURL=SegmentsUtils.js.map\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _createClass=function(){function defineProperties(target,props){for(var i=0;i<props.length;i++){var descriptor=props[i];descriptor.enumerable=descriptor.enumerable||false;descriptor.configurable=true;if(\"value\"in descriptor)descriptor.writable=true;Object.defineProperty(target,descriptor.key,descriptor);}}return function(Constructor,protoProps,staticProps){if(protoProps)defineProperties(Constructor.prototype,protoProps);if(staticProps)defineProperties(Constructor,staticProps);return Constructor;};}();function _classCallCheck(instance,Constructor){if(!(instance instanceof Constructor)){throw new TypeError(\"Cannot call a class as a function\");}}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n *//**\n * @class\n * @ignore\n */var ErrorsBase=function(){function ErrorsBase(){_classCallCheck(this,ErrorsBase);}_createClass(ErrorsBase,[{key:'extend',value:function extend(errors,config){if(!errors)return;var override=config?config.override:false;var publicOnly=config?config.publicOnly:false;for(var err in errors){if(!errors.hasOwnProperty(err)||this[err]&&!override)continue;if(publicOnly&&errors[err].indexOf('public_')===-1)continue;this[err]=errors[err];}}}]);return ErrorsBase;}();exports.default=ErrorsBase;\n//# sourceMappingURL=ErrorsBase.js.map\n","module.exports = function (bitmap, value) {\n  return {\n    enumerable: !(bitmap & 1),\n    configurable: !(bitmap & 2),\n    writable: !(bitmap & 4),\n    value: value\n  };\n};\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _FactoryMaker=require('../../core/FactoryMaker');var _FactoryMaker2=_interopRequireDefault(_FactoryMaker);var _EventBus=require('../../core/EventBus');var _EventBus2=_interopRequireDefault(_EventBus);function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n */function BlackListController(config){config=config||{};var blacklist=[];var eventBus=(0,_EventBus2.default)(this.context).getInstance();var updateEventName=config.updateEventName;var addBlacklistEventName=config.addBlacklistEventName;function contains(query){if(!blacklist.length||!query||!query.length){return false;}return blacklist.indexOf(query)!==-1;}function add(entry){if(blacklist.indexOf(entry)!==-1){return;}blacklist.push(entry);eventBus.trigger(updateEventName,{entry:entry});}function onAddBlackList(e){add(e.entry);}function setup(){if(addBlacklistEventName){eventBus.on(addBlacklistEventName,onAddBlackList,this);}}function reset(){blacklist=[];}setup();return{add:add,contains:contains,reset:reset};}BlackListController.__dashjs_factory_name='BlackListController';exports.default=_FactoryMaker2.default.getClassFactory(BlackListController);\n//# sourceMappingURL=BlacklistController.js.map\n","'use strict';\n\nfunction _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError(\"Cannot call a class as a function\"); } }\n\nvar Buffer = require('safe-buffer').Buffer;\nvar util = require('util');\n\nfunction copyBuffer(src, target, offset) {\n  src.copy(target, offset);\n}\n\nmodule.exports = function () {\n  function BufferList() {\n    _classCallCheck(this, BufferList);\n\n    this.head = null;\n    this.tail = null;\n    this.length = 0;\n  }\n\n  BufferList.prototype.push = function push(v) {\n    var entry = { data: v, next: null };\n    if (this.length > 0) this.tail.next = entry;else this.head = entry;\n    this.tail = entry;\n    ++this.length;\n  };\n\n  BufferList.prototype.unshift = function unshift(v) {\n    var entry = { data: v, next: this.head };\n    if (this.length === 0) this.tail = entry;\n    this.head = entry;\n    ++this.length;\n  };\n\n  BufferList.prototype.shift = function shift() {\n    if (this.length === 0) return;\n    var ret = this.head.data;\n    if (this.length === 1) this.head = this.tail = null;else this.head = this.head.next;\n    --this.length;\n    return ret;\n  };\n\n  BufferList.prototype.clear = function clear() {\n    this.head = this.tail = null;\n    this.length = 0;\n  };\n\n  BufferList.prototype.join = function join(s) {\n    if (this.length === 0) return '';\n    var p = this.head;\n    var ret = '' + p.data;\n    while (p = p.next) {\n      ret += s + p.data;\n    }return ret;\n  };\n\n  BufferList.prototype.concat = function concat(n) {\n    if (this.length === 0) return Buffer.alloc(0);\n    if (this.length === 1) return this.head.data;\n    var ret = Buffer.allocUnsafe(n >>> 0);\n    var p = this.head;\n    var i = 0;\n    while (p) {\n      copyBuffer(p.data, ret, i);\n      i += p.data.length;\n      p = p.next;\n    }\n    return ret;\n  };\n\n  return BufferList;\n}();\n\nif (util && util.inspect && util.inspect.custom) {\n  module.exports.prototype[util.inspect.custom] = function () {\n    var obj = util.inspect({ length: this.length });\n    return this.constructor.name + ' ' + obj;\n  };\n}","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});function _classCallCheck(instance,Constructor){if(!(instance instanceof Constructor)){throw new TypeError(\"Cannot call a class as a function\");}}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n *//**\n * @class\n * @ignore\n */var DVBErrors=function DVBErrors(){_classCallCheck(this,DVBErrors);this.mpdurl=null;// String - Absolute URL from which the MPD was originally\n// retrieved (MPD updates will not change this value).\nthis.errorcode=null;// String - The value of errorcode depends upon the type\n// of error being reported. For an error listed in the\n// ErrorType column below the value is as described in the\n// Value column.\n//\n// ErrorType                                            Value\n// ---------                                            -----\n// HTTP error status code                               HTTP status code\n// Unknown HTTP status code                             HTTP status code\n// SSL connection failed                                \"SSL\" followed by SSL alert value\n// DNS resolution failed                                \"C00\"\n// Host unreachable                                     \"C01\"\n// Connection refused                                   \"C02\"\n// Connection error – Not otherwise specified           \"C03\"\n// Corrupt media – ISO BMFF container cannot be parsed  \"M00\"\n// Corrupt media – Not otherwise specified              \"M01\"\n// Changing Base URL in use due to errors               \"F00\"\n// Becoming an error reporting Player                   \"S00\"\nthis.terror=null;// Real-Time - Date and time at which error occurred in UTC,\n// formatted as a combined date and time according to ISO 8601.\nthis.url=null;// String - Absolute URL from which data was being requested\n// when this error occurred. If the error report is in relation\n// to corrupt media or changing BaseURL, this may be a null\n// string if the URL from which the media was obtained or\n// which led to the change of BaseURL is no longer known.\nthis.ipaddress=null;// String - IP Address which the host name in \"url\" resolved to.\n// If the error report is in relation to corrupt media or\n// changing BaseURL, this may be a null string if the URL\n// from which the media was obtained or which led to the\n// change of BaseURL is no longer known.\nthis.servicelocation=null;// String - The value of the serviceLocation field in the\n// BaseURL being used. In the event of this report indicating\n// a change of BaseURL this is the value from the BaseURL\n// being moved from.\n};DVBErrors.SSL_CONNECTION_FAILED_PREFIX='SSL';DVBErrors.DNS_RESOLUTION_FAILED='C00';DVBErrors.HOST_UNREACHABLE='C01';DVBErrors.CONNECTION_REFUSED='C02';DVBErrors.CONNECTION_ERROR='C03';DVBErrors.CORRUPT_MEDIA_ISOBMFF='M00';DVBErrors.CORRUPT_MEDIA_OTHER='M01';DVBErrors.BASE_URL_CHANGED='F00';DVBErrors.BECAME_REPORTER='S00';exports.default=DVBErrors;\n//# sourceMappingURL=DVBErrors.js.map\n","'use strict';\n\n/**\n * Determines whether the payload is an error thrown by Axios\n *\n * @param {*} payload The value to test\n * @returns {boolean} True if the payload is an error thrown by Axios, otherwise false\n */\nmodule.exports = function isAxiosError(payload) {\n  return (typeof payload === 'object') && (payload.isAxiosError === true);\n};\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _createClass=function(){function defineProperties(target,props){for(var i=0;i<props.length;i++){var descriptor=props[i];descriptor.enumerable=descriptor.enumerable||false;descriptor.configurable=true;if(\"value\"in descriptor)descriptor.writable=true;Object.defineProperty(target,descriptor.key,descriptor);}}return function(Constructor,protoProps,staticProps){if(protoProps)defineProperties(Constructor.prototype,protoProps);if(staticProps)defineProperties(Constructor,staticProps);return Constructor;};}();function _classCallCheck(instance,Constructor){if(!(instance instanceof Constructor)){throw new TypeError(\"Cannot call a class as a function\");}}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n *//**\n * @classdesc A collection of ClearKey encryption keys with an (optional) associated\n *  type\n * @ignore\n */var ClearKeyKeySet=function(){/**\n     * @param {Array.<KeyPair>} keyPairs\n     * @param {string} type the type of keys in this set.  One of either 'persistent'\n     * or 'temporary'.  Can also be null or undefined.\n     * @class\n     * @ignore\n     */function ClearKeyKeySet(keyPairs,type){_classCallCheck(this,ClearKeyKeySet);if(type&&type!=='persistent'&&type!=='temporary')throw new Error('Invalid ClearKey key set type!  Must be one of \\'persistent\\' or \\'temporary\\'');this.keyPairs=keyPairs;this.type=type;}/**\n     * Convert this key set to its JSON Web Key (JWK) representation\n     *\n     * @return {ArrayBuffer} JWK object UTF-8 encoded as ArrayBuffer\n     */_createClass(ClearKeyKeySet,[{key:'toJWK',value:function toJWK(){var i=void 0;var numKeys=this.keyPairs.length;var jwk={keys:[]};for(i=0;i<numKeys;i++){var key={kty:'oct',alg:'A128KW',kid:this.keyPairs[i].keyID,k:this.keyPairs[i].key};jwk.keys.push(key);}if(this.type){jwk.type=this.type;}var jwkString=JSON.stringify(jwk);var len=jwkString.length;// Convert JSON string to ArrayBuffer\nvar buf=new ArrayBuffer(len);var bView=new Uint8Array(buf);for(i=0;i<len;i++){bView[i]=jwkString.charCodeAt(i);}return buf;}}]);return ClearKeyKeySet;}();exports.default=ClearKeyKeySet;\n//# sourceMappingURL=ClearKeyKeySet.js.map\n","\"use strict\";Object.defineProperty(exports,\"__esModule\",{value:true});function _classCallCheck(instance,Constructor){if(!(instance instanceof Constructor)){throw new TypeError(\"Cannot call a class as a function\");}}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n *//**\n * @classdesc NeedKey\n * @ignore\n */var NeedKey=/**\n     * @param {ArrayBuffer} initData the initialization data\n     * @param {string} initDataType initialization data type\n     * @class\n     */function NeedKey(initData,initDataType){_classCallCheck(this,NeedKey);this.initData=initData;this.initDataType=initDataType;};exports.default=NeedKey;\n//# sourceMappingURL=NeedKey.js.map\n","'use strict';\nvar DESCRIPTORS = require('../internals/descriptors');\nvar fails = require('../internals/fails');\nvar objectKeys = require('../internals/object-keys');\nvar getOwnPropertySymbolsModule = require('../internals/object-get-own-property-symbols');\nvar propertyIsEnumerableModule = require('../internals/object-property-is-enumerable');\nvar toObject = require('../internals/to-object');\nvar IndexedObject = require('../internals/indexed-object');\n\nvar nativeAssign = Object.assign;\nvar defineProperty = Object.defineProperty;\n\n// `Object.assign` method\n// https://tc39.github.io/ecma262/#sec-object.assign\nmodule.exports = !nativeAssign || fails(function () {\n  // should have correct order of operations (Edge bug)\n  if (DESCRIPTORS && nativeAssign({ b: 1 }, nativeAssign(defineProperty({}, 'a', {\n    enumerable: true,\n    get: function () {\n      defineProperty(this, 'b', {\n        value: 3,\n        enumerable: false\n      });\n    }\n  }), { b: 2 })).b !== 1) return true;\n  // should work with symbols and should have deterministic property order (V8 bug)\n  var A = {};\n  var B = {};\n  // eslint-disable-next-line no-undef\n  var symbol = Symbol();\n  var alphabet = 'abcdefghijklmnopqrst';\n  A[symbol] = 7;\n  alphabet.split('').forEach(function (chr) { B[chr] = chr; });\n  return nativeAssign({}, A)[symbol] != 7 || objectKeys(nativeAssign({}, B)).join('') != alphabet;\n}) ? function assign(target, source) { // eslint-disable-line no-unused-vars\n  var T = toObject(target);\n  var argumentsLength = arguments.length;\n  var index = 1;\n  var getOwnPropertySymbols = getOwnPropertySymbolsModule.f;\n  var propertyIsEnumerable = propertyIsEnumerableModule.f;\n  while (argumentsLength > index) {\n    var S = IndexedObject(arguments[index++]);\n    var keys = getOwnPropertySymbols ? objectKeys(S).concat(getOwnPropertySymbols(S)) : objectKeys(S);\n    var length = keys.length;\n    var j = 0;\n    var key;\n    while (length > j) {\n      key = keys[j++];\n      if (!DESCRIPTORS || propertyIsEnumerable.call(S, key)) T[key] = S[key];\n    }\n  } return T;\n} : nativeAssign;\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _FactoryMaker=require('../../core/FactoryMaker');var _FactoryMaker2=_interopRequireDefault(_FactoryMaker);function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}function Capabilities(){var instance=void 0,encryptedMediaSupported=void 0;function setup(){encryptedMediaSupported=false;}function supportsMediaSource(){var hasWebKit='WebKitMediaSource'in window;var hasMediaSource='MediaSource'in window;return hasWebKit||hasMediaSource;}/**\n     * Returns whether Encrypted Media Extensions are supported on this\n     * user agent\n     *\n     * @return {boolean} true if EME is supported, false otherwise\n     */function supportsEncryptedMedia(){return encryptedMediaSupported;}function setEncryptedMediaSupported(value){encryptedMediaSupported=value;}function supportsCodec(codec){if('MediaSource'in window&&MediaSource.isTypeSupported(codec)){return true;}if('WebKitMediaSource'in window&&WebKitMediaSource.isTypeSupported(codec)){return true;}return false;}instance={supportsMediaSource:supportsMediaSource,supportsEncryptedMedia:supportsEncryptedMedia,supportsCodec:supportsCodec,setEncryptedMediaSupported:setEncryptedMediaSupported};setup();return instance;}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n */Capabilities.__dashjs_factory_name='Capabilities';exports.default=_FactoryMaker2.default.getSingletonFactory(Capabilities);\n//# sourceMappingURL=Capabilities.js.map\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _FactoryMaker=require('../../core/FactoryMaker');var _FactoryMaker2=_interopRequireDefault(_FactoryMaker);var _Constants=require('../constants/Constants');var _Constants2=_interopRequireDefault(_Constants);function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}/**\n * @param {Object} config\n * @returns {{initialize: initialize, getLiveEdge: getLiveEdge, reset: reset}|*}\n * @constructor\n * @ignore\n *//**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n */function LiveEdgeFinder(config){config=config||{};var instance=void 0;var timelineConverter=config.timelineConverter;function checkConfig(){if(!timelineConverter||!timelineConverter.hasOwnProperty('getExpectedLiveEdge')){throw new Error(_Constants2.default.MISSING_CONFIG_ERROR);}}function getLiveEdge(representationInfo){checkConfig();var dvrEnd=representationInfo.DVRWindow?representationInfo.DVRWindow.end:0;var liveEdge=dvrEnd;if(representationInfo.useCalculatedLiveEdgeTime){liveEdge=timelineConverter.getExpectedLiveEdge();timelineConverter.setClientTimeOffset(liveEdge-dvrEnd);}return liveEdge;}function reset(){timelineConverter=null;}instance={getLiveEdge:getLiveEdge,reset:reset};return instance;}LiveEdgeFinder.__dashjs_factory_name='LiveEdgeFinder';exports.default=_FactoryMaker2.default.getClassFactory(LiveEdgeFinder);\n//# sourceMappingURL=LiveEdgeFinder.js.map\n","function _assertThisInitialized(self) {\n  if (self === void 0) {\n    throw new ReferenceError(\"this hasn't been initialised - super() hasn't been called\");\n  }\n\n  return self;\n}\n\nmodule.exports = _assertThisInitialized;\nmodule.exports[\"default\"] = module.exports, module.exports.__esModule = true;","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _typeof=typeof Symbol===\"function\"&&typeof Symbol.iterator===\"symbol\"?function(obj){return typeof obj;}:function(obj){return obj&&typeof Symbol===\"function\"&&obj.constructor===Symbol&&obj!==Symbol.prototype?\"symbol\":typeof obj;};/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n */var _FactoryMaker=require('../../core/FactoryMaker');var _FactoryMaker2=_interopRequireDefault(_FactoryMaker);function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}function ObjectIron(mappers){function mergeValues(parentItem,childItem){for(var name in parentItem){if(!childItem.hasOwnProperty(name)){childItem[name]=parentItem[name];}}}function mapProperties(properties,parent,child){for(var i=0,len=properties.length;i<len;++i){var property=properties[i];if(parent[property.name]){if(child[property.name]){// check to see if we should merge\nif(property.merge){var parentValue=parent[property.name];var childValue=child[property.name];// complex objects; merge properties\nif((typeof parentValue==='undefined'?'undefined':_typeof(parentValue))==='object'&&(typeof childValue==='undefined'?'undefined':_typeof(childValue))==='object'){mergeValues(parentValue,childValue);}// simple objects; merge them together\nelse{child[property.name]=parentValue+childValue;}}}else{// just add the property\nchild[property.name]=parent[property.name];}}}}function mapItem(item,node){for(var i=0,len=item.children.length;i<len;++i){var childItem=item.children[i];var array=node[childItem.name+'_asArray'];if(array){for(var v=0,len2=array.length;v<len2;++v){var childNode=array[v];mapProperties(item.properties,node,childNode);mapItem(childItem,childNode);}}}}function run(source){if(source===null||(typeof source==='undefined'?'undefined':_typeof(source))!=='object'){return source;}if('period'in mappers){var periodMapper=mappers.period;var periods=source.Period_asArray;for(var i=0,len=periods.length;i<len;++i){var period=periods[i];mapItem(periodMapper,period);if('adaptationset'in mappers){var adaptationSets=period.AdaptationSet_asArray;if(adaptationSets){var adaptationSetMapper=mappers.adaptationset;for(var _i=0,_len=adaptationSets.length;_i<_len;++_i){mapItem(adaptationSetMapper,adaptationSets[_i]);}}}}}return source;}return{run:run};}ObjectIron.__dashjs_factory_name='ObjectIron';var factory=_FactoryMaker2.default.getClassFactory(ObjectIron);exports.default=factory;\n//# sourceMappingURL=objectiron.js.map\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _MetricsConstants=require('../../constants/MetricsConstants');var _MetricsConstants2=_interopRequireDefault(_MetricsConstants);var _SwitchRequest=require('../SwitchRequest');var _SwitchRequest2=_interopRequireDefault(_SwitchRequest);var _FactoryMaker=require('../../../core/FactoryMaker');var _FactoryMaker2=_interopRequireDefault(_FactoryMaker);var _HTTPRequest=require('../../vo/metrics/HTTPRequest');var _EventBus=require('../../../core/EventBus');var _EventBus2=_interopRequireDefault(_EventBus);var _Events=require('../../../core/events/Events');var _Events2=_interopRequireDefault(_Events);var _Debug=require('../../../core/Debug');var _Debug2=_interopRequireDefault(_Debug);function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}// BOLA_STATE_ONE_BITRATE   : If there is only one bitrate (or initialization failed), always return NO_CHANGE.\n// BOLA_STATE_STARTUP       : Set placeholder buffer such that we download fragments at most recently measured throughput.\n// BOLA_STATE_STEADY        : Buffer primed, we switch to steady operation.\n// TODO: add BOLA_STATE_SEEK and tune BOLA behavior on seeking\nvar BOLA_STATE_ONE_BITRATE=0;/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2016, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n */// For a description of the BOLA adaptive bitrate (ABR) algorithm, see http://arxiv.org/abs/1601.06748\nvar BOLA_STATE_STARTUP=1;var BOLA_STATE_STEADY=2;var MINIMUM_BUFFER_S=10;// BOLA should never add artificial delays if buffer is less than MINIMUM_BUFFER_S.\nvar MINIMUM_BUFFER_PER_BITRATE_LEVEL_S=2;// E.g. if there are 5 bitrates, BOLA switches to top bitrate at buffer = 10 + 5 * 2 = 20s.\n// If Schedule Controller does not allow buffer to reach that level, it can be achieved through the placeholder buffer level.\nvar PLACEHOLDER_BUFFER_DECAY=0.99;// Make sure placeholder buffer does not stick around too long.\nfunction BolaRule(config){config=config||{};var context=this.context;var dashMetrics=config.dashMetrics;var mediaPlayerModel=config.mediaPlayerModel;var eventBus=(0,_EventBus2.default)(context).getInstance();var instance=void 0,logger=void 0,bolaStateDict=void 0;function setup(){logger=(0,_Debug2.default)(context).getInstance().getLogger(instance);resetInitialSettings();eventBus.on(_Events2.default.BUFFER_EMPTY,onBufferEmpty,instance);eventBus.on(_Events2.default.PLAYBACK_SEEKING,onPlaybackSeeking,instance);eventBus.on(_Events2.default.PERIOD_SWITCH_STARTED,onPeriodSwitchStarted,instance);eventBus.on(_Events2.default.MEDIA_FRAGMENT_LOADED,onMediaFragmentLoaded,instance);eventBus.on(_Events2.default.METRIC_ADDED,onMetricAdded,instance);eventBus.on(_Events2.default.QUALITY_CHANGE_REQUESTED,onQualityChangeRequested,instance);eventBus.on(_Events2.default.FRAGMENT_LOADING_ABANDONED,onFragmentLoadingAbandoned,instance);}function utilitiesFromBitrates(bitrates){return bitrates.map(function(b){return Math.log(b);});// no need to worry about offset, utilities will be offset (uniformly) anyway later\n}// NOTE: in live streaming, the real buffer level can drop below minimumBufferS, but bola should not stick to lowest bitrate by using a placeholder buffer level\nfunction calculateBolaParameters(stableBufferTime,bitrates,utilities){var highestUtilityIndex=utilities.reduce(function(highestIndex,u,uIndex){return u>utilities[highestIndex]?uIndex:highestIndex;},0);if(highestUtilityIndex===0){// if highestUtilityIndex === 0, then always use lowest bitrate\nreturn null;}var bufferTime=Math.max(stableBufferTime,MINIMUM_BUFFER_S+MINIMUM_BUFFER_PER_BITRATE_LEVEL_S*bitrates.length);// TODO: Investigate if following can be better if utilities are not the default Math.log utilities.\n// If using Math.log utilities, we can choose Vp and gp to always prefer bitrates[0] at minimumBufferS and bitrates[max] at bufferTarget.\n// (Vp * (utility + gp) - bufferLevel) / bitrate has the maxima described when:\n// Vp * (utilities[0] + gp - 1) === minimumBufferS and Vp * (utilities[max] + gp - 1) === bufferTarget\n// giving:\nvar gp=(utilities[highestUtilityIndex]-1)/(bufferTime/MINIMUM_BUFFER_S-1);var Vp=MINIMUM_BUFFER_S/gp;// note that expressions for gp and Vp assume utilities[0] === 1, which is true because of normalization\nreturn{gp:gp,Vp:Vp};}function getInitialBolaState(rulesContext){var initialState={};var mediaInfo=rulesContext.getMediaInfo();var bitrates=mediaInfo.bitrateList.map(function(b){return b.bandwidth;});var utilities=utilitiesFromBitrates(bitrates);utilities=utilities.map(function(u){return u-utilities[0]+1;});// normalize\nvar stableBufferTime=mediaPlayerModel.getStableBufferTime();var params=calculateBolaParameters(stableBufferTime,bitrates,utilities);if(!params){// only happens when there is only one bitrate level\ninitialState.state=BOLA_STATE_ONE_BITRATE;}else{initialState.state=BOLA_STATE_STARTUP;initialState.bitrates=bitrates;initialState.utilities=utilities;initialState.stableBufferTime=stableBufferTime;initialState.Vp=params.Vp;initialState.gp=params.gp;initialState.lastQuality=0;clearBolaStateOnSeek(initialState);}return initialState;}function clearBolaStateOnSeek(bolaState){bolaState.placeholderBuffer=0;bolaState.mostAdvancedSegmentStart=NaN;bolaState.lastSegmentWasReplacement=false;bolaState.lastSegmentStart=NaN;bolaState.lastSegmentDurationS=NaN;bolaState.lastSegmentRequestTimeMs=NaN;bolaState.lastSegmentFinishTimeMs=NaN;}// If the buffer target is changed (can this happen mid-stream?), then adjust BOLA parameters accordingly.\nfunction checkBolaStateStableBufferTime(bolaState,mediaType){var stableBufferTime=mediaPlayerModel.getStableBufferTime();if(bolaState.stableBufferTime!==stableBufferTime){var params=calculateBolaParameters(stableBufferTime,bolaState.bitrates,bolaState.utilities);if(params.Vp!==bolaState.Vp||params.gp!==bolaState.gp){// correct placeholder buffer using two criteria:\n// 1. do not change effective buffer level at effectiveBufferLevel === MINIMUM_BUFFER_S ( === Vp * gp )\n// 2. scale placeholder buffer by Vp subject to offset indicated in 1.\nvar bufferLevel=dashMetrics.getCurrentBufferLevel(mediaType);var effectiveBufferLevel=bufferLevel+bolaState.placeholderBuffer;effectiveBufferLevel-=MINIMUM_BUFFER_S;effectiveBufferLevel*=params.Vp/bolaState.Vp;effectiveBufferLevel+=MINIMUM_BUFFER_S;bolaState.stableBufferTime=stableBufferTime;bolaState.Vp=params.Vp;bolaState.gp=params.gp;bolaState.placeholderBuffer=Math.max(0,effectiveBufferLevel-bufferLevel);}}}function getBolaState(rulesContext){var mediaType=rulesContext.getMediaType();var bolaState=bolaStateDict[mediaType];if(!bolaState){bolaState=getInitialBolaState(rulesContext);bolaStateDict[mediaType]=bolaState;}else if(bolaState.state!==BOLA_STATE_ONE_BITRATE){checkBolaStateStableBufferTime(bolaState,mediaType);}return bolaState;}// The core idea of BOLA.\nfunction getQualityFromBufferLevel(bolaState,bufferLevel){var bitrateCount=bolaState.bitrates.length;var quality=NaN;var score=NaN;for(var i=0;i<bitrateCount;++i){var s=(bolaState.Vp*(bolaState.utilities[i]+bolaState.gp)-bufferLevel)/bolaState.bitrates[i];if(isNaN(score)||s>=score){score=s;quality=i;}}return quality;}// maximum buffer level which prefers to download at quality rather than wait\nfunction maxBufferLevelForQuality(bolaState,quality){return bolaState.Vp*(bolaState.utilities[quality]+bolaState.gp);}// the minimum buffer level that would cause BOLA to choose quality rather than a lower bitrate\nfunction minBufferLevelForQuality(bolaState,quality){var qBitrate=bolaState.bitrates[quality];var qUtility=bolaState.utilities[quality];var min=0;for(var i=quality-1;i>=0;--i){// for each bitrate less than bitrates[quality], BOLA should prefer quality (unless other bitrate has higher utility)\nif(bolaState.utilities[i]<bolaState.utilities[quality]){var iBitrate=bolaState.bitrates[i];var iUtility=bolaState.utilities[i];var level=bolaState.Vp*(bolaState.gp+(qBitrate*iUtility-iBitrate*qUtility)/(qBitrate-iBitrate));min=Math.max(min,level);// we want min to be small but at least level(i) for all i\n}}return min;}/*\n     * The placeholder buffer increases the effective buffer that is used to calculate the bitrate.\n     * There are two main reasons we might want to increase the placeholder buffer:\n     *\n     * 1. When a segment finishes downloading, we would expect to get a call on getMaxIndex() regarding the quality for\n     *    the next segment. However, there might be a delay before the next call. E.g. when streaming live content, the\n     *    next segment might not be available yet. If the call to getMaxIndex() does happens after a delay, we don't\n     *    want the delay to change the BOLA decision - we only want to factor download time to decide on bitrate level.\n     *\n     * 2. It is possible to get a call to getMaxIndex() without having a segment download. The buffer target in dash.js\n     *    is different for top-quality segments and lower-quality segments. If getMaxIndex() returns a lower-than-top\n     *    quality, then the buffer controller might decide not to download a segment. When dash.js is ready for the next\n     *    segment, getMaxIndex() will be called again. We don't want this extra delay to factor in the bitrate decision.\n     */function updatePlaceholderBuffer(bolaState,mediaType){var nowMs=Date.now();if(!isNaN(bolaState.lastSegmentFinishTimeMs)){// compensate for non-bandwidth-derived delays, e.g., live streaming availability, buffer controller\nvar delay=0.001*(nowMs-bolaState.lastSegmentFinishTimeMs);bolaState.placeholderBuffer+=Math.max(0,delay);}else if(!isNaN(bolaState.lastCallTimeMs)){// no download after last call, compensate for delay between calls\nvar _delay=0.001*(nowMs-bolaState.lastCallTimeMs);bolaState.placeholderBuffer+=Math.max(0,_delay);}bolaState.lastCallTimeMs=nowMs;bolaState.lastSegmentStart=NaN;bolaState.lastSegmentRequestTimeMs=NaN;bolaState.lastSegmentFinishTimeMs=NaN;checkBolaStateStableBufferTime(bolaState,mediaType);}function onBufferEmpty(){// if we rebuffer, we don't want the placeholder buffer to artificially raise BOLA quality\nfor(var mediaType in bolaStateDict){if(bolaStateDict.hasOwnProperty(mediaType)&&bolaStateDict[mediaType].state===BOLA_STATE_STEADY){bolaStateDict[mediaType].placeholderBuffer=0;}}}function onPlaybackSeeking(){// TODO: 1. Verify what happens if we seek mid-fragment.\n// TODO: 2. If e.g. we have 10s fragments and seek, we might want to download the first fragment at a lower quality to restart playback quickly.\nfor(var mediaType in bolaStateDict){if(bolaStateDict.hasOwnProperty(mediaType)){var bolaState=bolaStateDict[mediaType];if(bolaState.state!==BOLA_STATE_ONE_BITRATE){bolaState.state=BOLA_STATE_STARTUP;// TODO: BOLA_STATE_SEEK?\nclearBolaStateOnSeek(bolaState);}}}}function onPeriodSwitchStarted(){// TODO: does this have to be handled here?\n}function onMediaFragmentLoaded(e){if(e&&e.chunk&&e.chunk.mediaInfo){var bolaState=bolaStateDict[e.chunk.mediaInfo.type];if(bolaState&&bolaState.state!==BOLA_STATE_ONE_BITRATE){var start=e.chunk.start;if(isNaN(bolaState.mostAdvancedSegmentStart)||start>bolaState.mostAdvancedSegmentStart){bolaState.mostAdvancedSegmentStart=start;bolaState.lastSegmentWasReplacement=false;}else{bolaState.lastSegmentWasReplacement=true;}bolaState.lastSegmentStart=start;bolaState.lastSegmentDurationS=e.chunk.duration;bolaState.lastQuality=e.chunk.quality;checkNewSegment(bolaState,e.chunk.mediaInfo.type);}}}function onMetricAdded(e){if(e&&e.metric===_MetricsConstants2.default.HTTP_REQUEST&&e.value&&e.value.type===_HTTPRequest.HTTPRequest.MEDIA_SEGMENT_TYPE&&e.value.trace&&e.value.trace.length){var bolaState=bolaStateDict[e.mediaType];if(bolaState&&bolaState.state!==BOLA_STATE_ONE_BITRATE){bolaState.lastSegmentRequestTimeMs=e.value.trequest.getTime();bolaState.lastSegmentFinishTimeMs=e.value._tfinish.getTime();checkNewSegment(bolaState,e.mediaType);}}}/*\n     * When a new segment is downloaded, we get two notifications: onMediaFragmentLoaded() and onMetricAdded(). It is\n     * possible that the quality for the downloaded segment was lower (not higher) than the quality indicated by BOLA.\n     * This might happen because of other rules such as the DroppedFramesRule. When this happens, we trim the\n     * placeholder buffer to make BOLA more stable. This mechanism also avoids inflating the buffer when BOLA itself\n     * decides not to increase the quality to avoid oscillations.\n     *\n     * We should also check for replacement segments (fast switching). In this case, a segment is downloaded but does\n     * not grow the actual buffer. Fast switching might cause the buffer to deplete, causing BOLA to drop the bitrate.\n     * We avoid this by growing the placeholder buffer.\n     */function checkNewSegment(bolaState,mediaType){if(!isNaN(bolaState.lastSegmentStart)&&!isNaN(bolaState.lastSegmentRequestTimeMs)&&!isNaN(bolaState.placeholderBuffer)){bolaState.placeholderBuffer*=PLACEHOLDER_BUFFER_DECAY;// Find what maximum buffer corresponding to last segment was, and ensure placeholder is not relatively larger.\nif(!isNaN(bolaState.lastSegmentFinishTimeMs)){var bufferLevel=dashMetrics.getCurrentBufferLevel(mediaType);var bufferAtLastSegmentRequest=bufferLevel+0.001*(bolaState.lastSegmentFinishTimeMs-bolaState.lastSegmentRequestTimeMs);// estimate\nvar maxEffectiveBufferForLastSegment=maxBufferLevelForQuality(bolaState,bolaState.lastQuality);var maxPlaceholderBuffer=Math.max(0,maxEffectiveBufferForLastSegment-bufferAtLastSegmentRequest);bolaState.placeholderBuffer=Math.min(maxPlaceholderBuffer,bolaState.placeholderBuffer);}// then see if we should grow placeholder buffer\nif(bolaState.lastSegmentWasReplacement&&!isNaN(bolaState.lastSegmentDurationS)){// compensate for segments that were downloaded but did not grow the buffer\nbolaState.placeholderBuffer+=bolaState.lastSegmentDurationS;}bolaState.lastSegmentStart=NaN;bolaState.lastSegmentRequestTimeMs=NaN;}}function onQualityChangeRequested(e){// Useful to store change requests when abandoning a download.\nif(e){var bolaState=bolaStateDict[e.mediaType];if(bolaState&&bolaState.state!==BOLA_STATE_ONE_BITRATE){bolaState.abrQuality=e.newQuality;}}}function onFragmentLoadingAbandoned(e){if(e){var bolaState=bolaStateDict[e.mediaType];if(bolaState&&bolaState.state!==BOLA_STATE_ONE_BITRATE){// deflate placeholderBuffer - note that we want to be conservative when abandoning\nvar bufferLevel=dashMetrics.getCurrentBufferLevel(e.mediaType);var wantEffectiveBufferLevel=void 0;if(bolaState.abrQuality>0){// deflate to point where BOLA just chooses newQuality over newQuality-1\nwantEffectiveBufferLevel=minBufferLevelForQuality(bolaState,bolaState.abrQuality);}else{wantEffectiveBufferLevel=MINIMUM_BUFFER_S;}var maxPlaceholderBuffer=Math.max(0,wantEffectiveBufferLevel-bufferLevel);bolaState.placeholderBuffer=Math.min(bolaState.placeholderBuffer,maxPlaceholderBuffer);}}}function getMaxIndex(rulesContext){var switchRequest=(0,_SwitchRequest2.default)(context).create();if(!rulesContext||!rulesContext.hasOwnProperty('getMediaInfo')||!rulesContext.hasOwnProperty('getMediaType')||!rulesContext.hasOwnProperty('getScheduleController')||!rulesContext.hasOwnProperty('getStreamInfo')||!rulesContext.hasOwnProperty('getAbrController')||!rulesContext.hasOwnProperty('useBufferOccupancyABR')){return switchRequest;}var mediaInfo=rulesContext.getMediaInfo();var mediaType=rulesContext.getMediaType();var scheduleController=rulesContext.getScheduleController();var streamInfo=rulesContext.getStreamInfo();var abrController=rulesContext.getAbrController();var throughputHistory=abrController.getThroughputHistory();var streamId=streamInfo?streamInfo.id:null;var isDynamic=streamInfo&&streamInfo.manifestInfo&&streamInfo.manifestInfo.isDynamic;var useBufferOccupancyABR=rulesContext.useBufferOccupancyABR();switchRequest.reason=switchRequest.reason||{};if(!useBufferOccupancyABR){return switchRequest;}scheduleController.setTimeToLoadDelay(0);var bolaState=getBolaState(rulesContext);if(bolaState.state===BOLA_STATE_ONE_BITRATE){// shouldn't even have been called\nreturn switchRequest;}var bufferLevel=dashMetrics.getCurrentBufferLevel(mediaType);var throughput=throughputHistory.getAverageThroughput(mediaType,isDynamic);var safeThroughput=throughputHistory.getSafeAverageThroughput(mediaType,isDynamic);var latency=throughputHistory.getAverageLatency(mediaType);var quality=void 0;switchRequest.reason.state=bolaState.state;switchRequest.reason.throughput=throughput;switchRequest.reason.latency=latency;if(isNaN(throughput)){// isNaN(throughput) === isNaN(safeThroughput) === isNaN(latency)\n// still starting up - not enough information\nreturn switchRequest;}switch(bolaState.state){case BOLA_STATE_STARTUP:quality=abrController.getQualityForBitrate(mediaInfo,safeThroughput,latency);switchRequest.quality=quality;switchRequest.reason.throughput=safeThroughput;bolaState.placeholderBuffer=Math.max(0,minBufferLevelForQuality(bolaState,quality)-bufferLevel);bolaState.lastQuality=quality;if(!isNaN(bolaState.lastSegmentDurationS)&&bufferLevel>=bolaState.lastSegmentDurationS){bolaState.state=BOLA_STATE_STEADY;}break;// BOLA_STATE_STARTUP\ncase BOLA_STATE_STEADY:// NB: The placeholder buffer is added to bufferLevel to come up with a bitrate.\n//     This might lead BOLA to be too optimistic and to choose a bitrate that would lead to rebuffering -\n//     if the real buffer bufferLevel runs out, the placeholder buffer cannot prevent rebuffering.\n//     However, the InsufficientBufferRule takes care of this scenario.\nupdatePlaceholderBuffer(bolaState,mediaType);quality=getQualityFromBufferLevel(bolaState,bufferLevel+bolaState.placeholderBuffer);// we want to avoid oscillations\n// We implement the \"BOLA-O\" variant: when network bandwidth lies between two encoded bitrate levels, stick to the lowest level.\nvar qualityForThroughput=abrController.getQualityForBitrate(mediaInfo,safeThroughput,latency);if(quality>bolaState.lastQuality&&quality>qualityForThroughput){// only intervene if we are trying to *increase* quality to an *unsustainable* level\n// we are only avoid oscillations - do not drop below last quality\nquality=Math.max(qualityForThroughput,bolaState.lastQuality);}// We do not want to overfill buffer with low quality chunks.\n// Note that there will be no delay if buffer level is below MINIMUM_BUFFER_S, probably even with some margin higher than MINIMUM_BUFFER_S.\nvar delayS=Math.max(0,bufferLevel+bolaState.placeholderBuffer-maxBufferLevelForQuality(bolaState,quality));// First reduce placeholder buffer, then tell schedule controller to pause.\nif(delayS<=bolaState.placeholderBuffer){bolaState.placeholderBuffer-=delayS;delayS=0;}else{delayS-=bolaState.placeholderBuffer;bolaState.placeholderBuffer=0;if(quality<abrController.getTopQualityIndexFor(mediaType,streamId)){// At top quality, allow schedule controller to decide how far to fill buffer.\nscheduleController.setTimeToLoadDelay(1000*delayS);}else{delayS=0;}}switchRequest.quality=quality;switchRequest.reason.throughput=throughput;switchRequest.reason.latency=latency;switchRequest.reason.bufferLevel=bufferLevel;switchRequest.reason.placeholderBuffer=bolaState.placeholderBuffer;switchRequest.reason.delay=delayS;bolaState.lastQuality=quality;// keep bolaState.state === BOLA_STATE_STEADY\nbreak;// BOLA_STATE_STEADY\ndefault:logger.debug('BOLA ABR rule invoked in bad state.');// should not arrive here, try to recover\nswitchRequest.quality=abrController.getQualityForBitrate(mediaInfo,safeThroughput,latency);switchRequest.reason.state=bolaState.state;switchRequest.reason.throughput=safeThroughput;switchRequest.reason.latency=latency;bolaState.state=BOLA_STATE_STARTUP;clearBolaStateOnSeek(bolaState);}return switchRequest;}function resetInitialSettings(){bolaStateDict={};}function reset(){resetInitialSettings();eventBus.off(_Events2.default.BUFFER_EMPTY,onBufferEmpty,instance);eventBus.off(_Events2.default.PLAYBACK_SEEKING,onPlaybackSeeking,instance);eventBus.off(_Events2.default.PERIOD_SWITCH_STARTED,onPeriodSwitchStarted,instance);eventBus.off(_Events2.default.MEDIA_FRAGMENT_LOADED,onMediaFragmentLoaded,instance);eventBus.off(_Events2.default.METRIC_ADDED,onMetricAdded,instance);eventBus.off(_Events2.default.QUALITY_CHANGE_REQUESTED,onQualityChangeRequested,instance);eventBus.off(_Events2.default.FRAGMENT_LOADING_ABANDONED,onFragmentLoadingAbandoned,instance);}instance={getMaxIndex:getMaxIndex,reset:reset};setup();return instance;}BolaRule.__dashjs_factory_name='BolaRule';exports.default=_FactoryMaker2.default.getClassFactory(BolaRule);\n//# sourceMappingURL=BolaRule.js.map\n","\"use strict\";Object.defineProperty(exports,\"__esModule\",{value:true});function _classCallCheck(instance,Constructor){if(!(instance instanceof Constructor)){throw new TypeError(\"Cannot call a class as a function\");}}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n *//**\n * @class\n * @ignore\n */var DataChunk=//Represents a data structure that keep all the necessary info about a single init/media segment\nfunction DataChunk(){_classCallCheck(this,DataChunk);this.streamId=null;this.mediaInfo=null;this.segmentType=null;this.quality=NaN;this.index=NaN;this.bytes=null;this.start=NaN;this.end=NaN;this.duration=NaN;this.representationId=null;this.endFragment=null;};exports.default=DataChunk;\n//# sourceMappingURL=DataChunk.js.map\n","var toInteger = require('../internals/to-integer');\nvar requireObjectCoercible = require('../internals/require-object-coercible');\n\n// `String.prototype.{ codePointAt, at }` methods implementation\nvar createMethod = function (CONVERT_TO_STRING) {\n  return function ($this, pos) {\n    var S = String(requireObjectCoercible($this));\n    var position = toInteger(pos);\n    var size = S.length;\n    var first, second;\n    if (position < 0 || position >= size) return CONVERT_TO_STRING ? '' : undefined;\n    first = S.charCodeAt(position);\n    return first < 0xD800 || first > 0xDBFF || position + 1 === size\n      || (second = S.charCodeAt(position + 1)) < 0xDC00 || second > 0xDFFF\n        ? CONVERT_TO_STRING ? S.charAt(position) : first\n        : CONVERT_TO_STRING ? S.slice(position, position + 2) : (first - 0xD800 << 10) + (second - 0xDC00) + 0x10000;\n  };\n};\n\nmodule.exports = {\n  // `String.prototype.codePointAt` method\n  // https://tc39.github.io/ecma262/#sec-string.prototype.codepointat\n  codeAt: createMethod(false),\n  // `String.prototype.at` method\n  // https://github.com/mathiasbynens/String.prototype.at\n  charAt: createMethod(true)\n};\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _BaseMatcher2=require('./BaseMatcher');var _BaseMatcher3=_interopRequireDefault(_BaseMatcher2);var _DashConstants=require('../../constants/DashConstants');var _DashConstants2=_interopRequireDefault(_DashConstants);function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}function _defineProperty(obj,key,value){if(key in obj){Object.defineProperty(obj,key,{value:value,enumerable:true,configurable:true,writable:true});}else{obj[key]=value;}return obj;}function _classCallCheck(instance,Constructor){if(!(instance instanceof Constructor)){throw new TypeError(\"Cannot call a class as a function\");}}function _possibleConstructorReturn(self,call){if(!self){throw new ReferenceError(\"this hasn't been initialised - super() hasn't been called\");}return call&&(typeof call===\"object\"||typeof call===\"function\")?call:self;}function _inherits(subClass,superClass){if(typeof superClass!==\"function\"&&superClass!==null){throw new TypeError(\"Super expression must either be null or a function, not \"+typeof superClass);}subClass.prototype=Object.create(superClass&&superClass.prototype,{constructor:{value:subClass,enumerable:false,writable:true,configurable:true}});if(superClass)Object.setPrototypeOf?Object.setPrototypeOf(subClass,superClass):subClass.__proto__=superClass;}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n *//**\n * @classdesc Matches and converts xs:string to string, but only for specific attributes on specific nodes\n */var StringMatcher=function(_BaseMatcher){_inherits(StringMatcher,_BaseMatcher);function StringMatcher(){_classCallCheck(this,StringMatcher);return _possibleConstructorReturn(this,(StringMatcher.__proto__||Object.getPrototypeOf(StringMatcher)).call(this,function(attr,nodeName){var _stringAttrsInElement;var stringAttrsInElements=(_stringAttrsInElement={},_defineProperty(_stringAttrsInElement,_DashConstants2.default.MPD,[_DashConstants2.default.ID,_DashConstants2.default.PROFILES]),_defineProperty(_stringAttrsInElement,_DashConstants2.default.PERIOD,[_DashConstants2.default.ID]),_defineProperty(_stringAttrsInElement,_DashConstants2.default.BASE_URL,[_DashConstants2.default.SERVICE_LOCATION,_DashConstants2.default.BYTE_RANGE]),_defineProperty(_stringAttrsInElement,_DashConstants2.default.SEGMENT_BASE,[_DashConstants2.default.INDEX_RANGE]),_defineProperty(_stringAttrsInElement,_DashConstants2.default.INITIALIZATION,[_DashConstants2.default.RANGE]),_defineProperty(_stringAttrsInElement,_DashConstants2.default.REPRESENTATION_INDEX,[_DashConstants2.default.RANGE]),_defineProperty(_stringAttrsInElement,_DashConstants2.default.SEGMENT_LIST,[_DashConstants2.default.INDEX_RANGE]),_defineProperty(_stringAttrsInElement,_DashConstants2.default.BITSTREAM_SWITCHING,[_DashConstants2.default.RANGE]),_defineProperty(_stringAttrsInElement,_DashConstants2.default.SEGMENT_URL,[_DashConstants2.default.MEDIA_RANGE,_DashConstants2.default.INDEX_RANGE]),_defineProperty(_stringAttrsInElement,_DashConstants2.default.SEGMENT_TEMPLATE,[_DashConstants2.default.INDEX_RANGE,_DashConstants2.default.MEDIA,_DashConstants2.default.INDEX,_DashConstants2.default.INITIALIZATION_MINUS,_DashConstants2.default.BITSTREAM_SWITCHING_MINUS]),_defineProperty(_stringAttrsInElement,_DashConstants2.default.ASSET_IDENTIFIER,[_DashConstants2.default.VALUE,_DashConstants2.default.ID]),_defineProperty(_stringAttrsInElement,_DashConstants2.default.EVENT_STREAM,[_DashConstants2.default.VALUE]),_defineProperty(_stringAttrsInElement,_DashConstants2.default.ADAPTATION_SET,[_DashConstants2.default.PROFILES,_DashConstants2.default.MIME_TYPE,_DashConstants2.default.SEGMENT_PROFILES,_DashConstants2.default.CODECS,_DashConstants2.default.CONTENT_TYPE]),_defineProperty(_stringAttrsInElement,_DashConstants2.default.FRAME_PACKING,[_DashConstants2.default.VALUE,_DashConstants2.default.ID]),_defineProperty(_stringAttrsInElement,_DashConstants2.default.AUDIO_CHANNEL_CONFIGURATION,[_DashConstants2.default.VALUE,_DashConstants2.default.ID]),_defineProperty(_stringAttrsInElement,_DashConstants2.default.CONTENT_PROTECTION,[_DashConstants2.default.VALUE,_DashConstants2.default.ID]),_defineProperty(_stringAttrsInElement,_DashConstants2.default.ESSENTIAL_PROPERTY,[_DashConstants2.default.VALUE,_DashConstants2.default.ID]),_defineProperty(_stringAttrsInElement,_DashConstants2.default.SUPPLEMENTAL_PROPERTY,[_DashConstants2.default.VALUE,_DashConstants2.default.ID]),_defineProperty(_stringAttrsInElement,_DashConstants2.default.INBAND_EVENT_STREAM,[_DashConstants2.default.VALUE,_DashConstants2.default.ID]),_defineProperty(_stringAttrsInElement,_DashConstants2.default.ACCESSIBILITY,[_DashConstants2.default.VALUE,_DashConstants2.default.ID]),_defineProperty(_stringAttrsInElement,_DashConstants2.default.ROLE,[_DashConstants2.default.VALUE,_DashConstants2.default.ID]),_defineProperty(_stringAttrsInElement,_DashConstants2.default.RATING,[_DashConstants2.default.VALUE,_DashConstants2.default.ID]),_defineProperty(_stringAttrsInElement,_DashConstants2.default.VIEWPOINT,[_DashConstants2.default.VALUE,_DashConstants2.default.ID]),_defineProperty(_stringAttrsInElement,_DashConstants2.default.CONTENT_COMPONENT,[_DashConstants2.default.CONTENT_TYPE]),_defineProperty(_stringAttrsInElement,_DashConstants2.default.REPRESENTATION,[_DashConstants2.default.ID,_DashConstants2.default.DEPENDENCY_ID,_DashConstants2.default.MEDIA_STREAM_STRUCTURE_ID]),_defineProperty(_stringAttrsInElement,_DashConstants2.default.SUBSET,[_DashConstants2.default.ID]),_defineProperty(_stringAttrsInElement,_DashConstants2.default.METRICS,[_DashConstants2.default.METRICS_MINUS]),_defineProperty(_stringAttrsInElement,_DashConstants2.default.REPORTING,[_DashConstants2.default.VALUE,_DashConstants2.default.ID]),_stringAttrsInElement);if(stringAttrsInElements.hasOwnProperty(nodeName)){var attrNames=stringAttrsInElements[nodeName];if(attrNames!==undefined){return attrNames.indexOf(attr.name)>=0;}else{return false;}}return false;},function(str){return String(str);}));}return StringMatcher;}(_BaseMatcher3.default);exports.default=StringMatcher;\n//# sourceMappingURL=StringMatcher.js.map\n","var isObject = require('../internals/is-object');\nvar isArray = require('../internals/is-array');\nvar wellKnownSymbol = require('../internals/well-known-symbol');\n\nvar SPECIES = wellKnownSymbol('species');\n\n// `ArraySpeciesCreate` abstract operation\n// https://tc39.github.io/ecma262/#sec-arrayspeciescreate\nmodule.exports = function (originalArray, length) {\n  var C;\n  if (isArray(originalArray)) {\n    C = originalArray.constructor;\n    // cross-realm fallback\n    if (typeof C == 'function' && (C === Array || isArray(C.prototype))) C = undefined;\n    else if (isObject(C)) {\n      C = C[SPECIES];\n      if (C === null) C = undefined;\n    }\n  } return new (C === undefined ? Array : C)(length === 0 ? 0 : length);\n};\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _createClass=function(){function defineProperties(target,props){for(var i=0;i<props.length;i++){var descriptor=props[i];descriptor.enumerable=descriptor.enumerable||false;descriptor.configurable=true;if(\"value\"in descriptor)descriptor.writable=true;Object.defineProperty(target,descriptor.key,descriptor);}}return function(Constructor,protoProps,staticProps){if(protoProps)defineProperties(Constructor.prototype,protoProps);if(staticProps)defineProperties(Constructor,staticProps);return Constructor;};}();function _classCallCheck(instance,Constructor){if(!(instance instanceof Constructor)){throw new TypeError(\"Cannot call a class as a function\");}}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n *//**\n * @class\n * @ignore\n */var IsoBox=function(){function IsoBox(boxData){_classCallCheck(this,IsoBox);this.offset=boxData._offset;this.type=boxData.type;this.size=boxData.size;this.boxes=[];if(boxData.boxes){for(var i=0;i<boxData.boxes.length;i++){this.boxes.push(new IsoBox(boxData.boxes[i]));}}this.isComplete=true;switch(boxData.type){case'sidx':this.timescale=boxData.timescale;this.earliest_presentation_time=boxData.earliest_presentation_time;this.first_offset=boxData.first_offset;this.references=boxData.references;if(boxData.references){this.references=[];for(var _i=0;_i<boxData.references.length;_i++){var reference={reference_type:boxData.references[_i].reference_type,referenced_size:boxData.references[_i].referenced_size,subsegment_duration:boxData.references[_i].subsegment_duration};this.references.push(reference);}}break;case'emsg':this.id=boxData.id;this.value=boxData.value;this.timescale=boxData.timescale;this.scheme_id_uri=boxData.scheme_id_uri;this.presentation_time_delta=boxData.version===1?boxData.presentation_time:boxData.presentation_time_delta;this.event_duration=boxData.event_duration;this.message_data=boxData.message_data;break;case'mdhd':this.timescale=boxData.timescale;break;case'mfhd':this.sequence_number=boxData.sequence_number;break;case'subs':this.entry_count=boxData.entry_count;this.entries=boxData.entries;break;case'tfhd':this.base_data_offset=boxData.base_data_offset;this.sample_description_index=boxData.sample_description_index;this.default_sample_duration=boxData.default_sample_duration;this.default_sample_size=boxData.default_sample_size;this.default_sample_flags=boxData.default_sample_flags;this.flags=boxData.flags;break;case'tfdt':this.version=boxData.version;this.baseMediaDecodeTime=boxData.baseMediaDecodeTime;this.flags=boxData.flags;break;case'trun':this.sample_count=boxData.sample_count;this.first_sample_flags=boxData.first_sample_flags;this.data_offset=boxData.data_offset;this.flags=boxData.flags;this.samples=boxData.samples;if(boxData.samples){this.samples=[];for(var _i2=0,ln=boxData.samples.length;_i2<ln;_i2++){var sample={sample_size:boxData.samples[_i2].sample_size,sample_duration:boxData.samples[_i2].sample_duration,sample_composition_time_offset:boxData.samples[_i2].sample_composition_time_offset};this.samples.push(sample);}}break;}}_createClass(IsoBox,[{key:'getChildBox',value:function getChildBox(type){for(var i=0;i<this.boxes.length;i++){if(this.boxes[i].type===type){return this.boxes[i];}}}},{key:'getChildBoxes',value:function getChildBoxes(type){var boxes=[];for(var i=0;i<this.boxes.length;i++){if(this.boxes[i].type===type){boxes.push(this.boxes[i]);}}return boxes;}}]);return IsoBox;}();exports.default=IsoBox;\n//# sourceMappingURL=IsoBox.js.map\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n *//**\n * @ignore\n */function MetricSerialiser(){// For each entry in the top level list within the metric (in the case\n// of the DVBErrors metric each entry corresponds to an \"error event\"\n// described in clause 10.8.4) the Player shall:\nfunction serialise(metric){var pairs=[];var obj=[];var key=void 0,value=void 0;// Take each (key, value) pair from the metric entry and create a\n// string consisting of the name of the key, followed by an equals\n// ('=') character, followed by the string representation of the\n// value. The string representation of the value is created based\n// on the type of the value following the instructions in Table 22.\nfor(key in metric){if(metric.hasOwnProperty(key)&&key.indexOf('_')!==0){value=metric[key];// we want to ensure that keys still end up in the report\n// even if there is no value\nif(value===undefined||value===null){value='';}// DVB A168 10.12.4 Table 22\nif(Array.isArray(value)){// if trace or similar is null, do not include in output\nif(!value.length){continue;}obj=[];value.forEach(function(v){var isBuiltIn=Object.prototype.toString.call(v).slice(8,-1)!=='Object';obj.push(isBuiltIn?v:serialise(v));});value=obj.map(encodeURIComponent).join(',');}else if(typeof value==='string'){value=encodeURIComponent(value);}else if(value instanceof Date){value=value.toISOString();}else if(typeof value==='number'){value=Math.round(value);}pairs.push(key+'='+value);}}// Concatenate the strings created in the previous step with an\n// ampersand ('&') character between each one.\nreturn pairs.join('&');}return{serialise:serialise};}MetricSerialiser.__dashjs_factory_name='MetricSerialiser';exports.default=dashjs.FactoryMaker.getSingletonFactory(MetricSerialiser);/* jshint ignore:line */\n//# sourceMappingURL=MetricSerialiser.js.map\n","var win;\n\nif (typeof window !== \"undefined\") {\n    win = window;\n} else if (typeof global !== \"undefined\") {\n    win = global;\n} else if (typeof self !== \"undefined\"){\n    win = self;\n} else {\n    win = {};\n}\n\nmodule.exports = win;\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _Constants=require('../constants/Constants');var _Constants2=_interopRequireDefault(_Constants);var _HTTPRequest=require('../vo/metrics/HTTPRequest');var _TextTrackInfo=require('../vo/TextTrackInfo');var _TextTrackInfo2=_interopRequireDefault(_TextTrackInfo);var _BoxParser=require('../utils/BoxParser');var _BoxParser2=_interopRequireDefault(_BoxParser);var _CustomTimeRanges=require('../utils/CustomTimeRanges');var _CustomTimeRanges2=_interopRequireDefault(_CustomTimeRanges);var _FactoryMaker=require('../../core/FactoryMaker');var _FactoryMaker2=_interopRequireDefault(_FactoryMaker);var _Debug=require('../../core/Debug');var _Debug2=_interopRequireDefault(_Debug);var _TextTracks=require('./TextTracks');var _TextTracks2=_interopRequireDefault(_TextTracks);var _EmbeddedTextHtmlRender=require('./EmbeddedTextHtmlRender');var _EmbeddedTextHtmlRender2=_interopRequireDefault(_EmbeddedTextHtmlRender);var _codemIsoboxer=require('codem-isoboxer');var _codemIsoboxer2=_interopRequireDefault(_codemIsoboxer);var _cea608Parser=require('../../../externals/cea608-parser');var _cea608Parser2=_interopRequireDefault(_cea608Parser);var _EventBus=require('../../core/EventBus');var _EventBus2=_interopRequireDefault(_EventBus);var _Events=require('../../core/events/Events');var _Events2=_interopRequireDefault(_Events);var _DashJSError=require('../vo/DashJSError');var _DashJSError2=_interopRequireDefault(_DashJSError);var _Errors=require('../../core/errors/Errors');var _Errors2=_interopRequireDefault(_Errors);function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}function TextSourceBuffer(){var context=this.context;var eventBus=(0,_EventBus2.default)(context).getInstance();var embeddedInitialized=false;var instance=void 0,logger=void 0,boxParser=void 0,errHandler=void 0,adapter=void 0,manifestModel=void 0,mediaController=void 0,parser=void 0,vttParser=void 0,ttmlParser=void 0,mediaInfos=void 0,textTracks=void 0,fragmentedFragmentModel=void 0,initializationSegmentReceived=void 0,timescale=void 0,fragmentedTracks=void 0,videoModel=void 0,streamController=void 0,firstFragmentedSubtitleStart=void 0,currFragmentedTrackIdx=void 0,embeddedTracks=void 0,embeddedTimescale=void 0,embeddedLastSequenceNumber=void 0,embeddedCea608FieldParsers=void 0,embeddedTextHtmlRender=void 0,mseTimeOffset=void 0;function setup(){logger=(0,_Debug2.default)(context).getInstance().getLogger(instance);resetInitialSettings();}function resetFragmented(){fragmentedFragmentModel=null;timescale=NaN;fragmentedTracks=[];firstFragmentedSubtitleStart=null;initializationSegmentReceived=false;}function resetInitialSettings(){resetFragmented();mediaInfos=[];parser=null;}function initialize(mimeType,streamProcessor){if(!embeddedInitialized){initEmbedded();}textTracks.setConfig({videoModel:videoModel});textTracks.initialize();if(!boxParser){boxParser=(0,_BoxParser2.default)(context).getInstance();}addMediaInfos(mimeType,streamProcessor);}function addMediaInfos(mimeType,streamProcessor){var isFragmented=!adapter.getIsTextTrack(mimeType);if(streamProcessor){mediaInfos=mediaInfos.concat(streamProcessor.getMediaInfoArr());if(isFragmented){fragmentedFragmentModel=streamProcessor.getFragmentModel();instance.buffered=(0,_CustomTimeRanges2.default)(context).create();fragmentedTracks=mediaController.getTracksFor(_Constants2.default.FRAGMENTED_TEXT,streamProcessor.getStreamInfo());var currFragTrack=mediaController.getCurrentTrackFor(_Constants2.default.FRAGMENTED_TEXT,streamProcessor.getStreamInfo());for(var i=0;i<fragmentedTracks.length;i++){if(fragmentedTracks[i]===currFragTrack){setCurrentFragmentedTrackIdx(i);break;}}}for(var _i=0;_i<mediaInfos.length;_i++){createTextTrackFromMediaInfo(null,mediaInfos[_i]);}}}function abort(){textTracks.deleteAllTextTracks();resetFragmented();boxParser=null;mediaInfos=[];}function reset(){resetInitialSettings();streamController=null;videoModel=null;textTracks=null;}function onVideoChunkReceived(e){var chunk=e.chunk;if(chunk.mediaInfo.embeddedCaptions){append(chunk.bytes,chunk);}}function initEmbedded(){embeddedTracks=[];textTracks=(0,_TextTracks2.default)(context).getInstance();textTracks.setConfig({videoModel:videoModel});textTracks.initialize();boxParser=(0,_BoxParser2.default)(context).getInstance();currFragmentedTrackIdx=null;embeddedTimescale=0;embeddedCea608FieldParsers=[];embeddedLastSequenceNumber=null;embeddedInitialized=true;embeddedTextHtmlRender=(0,_EmbeddedTextHtmlRender2.default)(context).getInstance();var streamProcessors=streamController.getActiveStreamProcessors();for(var i in streamProcessors){if(streamProcessors[i].getType()==='video'){mseTimeOffset=streamProcessors[i].getRepresentationInfo().MSETimeOffset;break;}}eventBus.on(_Events2.default.VIDEO_CHUNK_RECEIVED,onVideoChunkReceived,this);eventBus.on(_Events2.default.BUFFER_CLEARED,onVideoBufferCleared,this);}function resetEmbedded(){eventBus.off(_Events2.default.VIDEO_CHUNK_RECEIVED,onVideoChunkReceived,this);eventBus.off(_Events2.default.BUFFER_CLEARED,onVideoBufferCleared,this);if(textTracks){textTracks.deleteAllTextTracks();}embeddedInitialized=false;embeddedTracks=[];embeddedCea608FieldParsers=[null,null];embeddedLastSequenceNumber=null;}function addEmbeddedTrack(mediaInfo){if(!embeddedInitialized){initEmbedded();}if(mediaInfo){if(mediaInfo.id===_Constants2.default.CC1||mediaInfo.id===_Constants2.default.CC3){for(var i=0;i<embeddedTracks.length;i++){if(embeddedTracks[i].id===mediaInfo.id){return;}}embeddedTracks.push(mediaInfo);}else{logger.warn('Embedded track '+mediaInfo.id+' not supported!');}}}function setConfig(config){if(!config){return;}if(config.errHandler){errHandler=config.errHandler;}if(config.adapter){adapter=config.adapter;}if(config.manifestModel){manifestModel=config.manifestModel;}if(config.mediaController){mediaController=config.mediaController;}if(config.videoModel){videoModel=config.videoModel;}if(config.streamController){streamController=config.streamController;}if(config.textTracks){textTracks=config.textTracks;}if(config.vttParser){vttParser=config.vttParser;}if(config.ttmlParser){ttmlParser=config.ttmlParser;}}function getConfig(){var config={fragmentModel:fragmentedFragmentModel,fragmentedTracks:fragmentedTracks,videoModel:videoModel};return config;}function setCurrentFragmentedTrackIdx(idx){currFragmentedTrackIdx=idx;}function createTextTrackFromMediaInfo(captionData,mediaInfo){var textTrackInfo=new _TextTrackInfo2.default();var trackKindMap={subtitle:'subtitles',caption:'captions'};//Dash Spec has no \"s\" on end of KIND but HTML needs plural.\nvar getKind=function getKind(){var kind=mediaInfo.roles.length>0?trackKindMap[mediaInfo.roles[0]]:trackKindMap.caption;kind=kind===trackKindMap.caption||kind===trackKindMap.subtitle?kind:trackKindMap.caption;return kind;};var checkTTML=function checkTTML(){var ttml=false;if(mediaInfo.codec&&mediaInfo.codec.search(_Constants2.default.STPP)>=0){ttml=true;}if(mediaInfo.mimeType&&mediaInfo.mimeType.search(_Constants2.default.TTML)>=0){ttml=true;}return ttml;};textTrackInfo.captionData=captionData;textTrackInfo.lang=mediaInfo.lang;textTrackInfo.labels=mediaInfo.labels;textTrackInfo.id=mediaInfo.id?mediaInfo.id:mediaInfo.index;// AdaptationSet id (an unsigned int) as it's optional parameter, use mediaInfo.index\ntextTrackInfo.index=mediaInfo.index;// AdaptationSet index in manifest\ntextTrackInfo.isTTML=checkTTML();textTrackInfo.defaultTrack=getIsDefault(mediaInfo);textTrackInfo.isFragmented=!adapter.getIsTextTrack(mediaInfo.mimeType);textTrackInfo.isEmbedded=mediaInfo.isEmbedded?true:false;textTrackInfo.kind=getKind();textTrackInfo.roles=mediaInfo.roles;textTrackInfo.accessibility=mediaInfo.accessibility;var totalNrTracks=(mediaInfos?mediaInfos.length:0)+embeddedTracks.length;textTracks.addTextTrack(textTrackInfo,totalNrTracks);}function append(bytes,chunk){var result=void 0,sampleList=void 0,i=void 0,j=void 0,k=void 0,samplesInfo=void 0,ccContent=void 0;var mediaInfo=chunk.mediaInfo;var mediaType=mediaInfo.type;var mimeType=mediaInfo.mimeType;var codecType=mediaInfo.codec||mimeType;if(!codecType){logger.error('No text type defined');return;}if(mediaType===_Constants2.default.FRAGMENTED_TEXT){if(!initializationSegmentReceived&&chunk.segmentType==='InitializationSegment'){initializationSegmentReceived=true;timescale=boxParser.getMediaTimescaleFromMoov(bytes);}else{if(!initializationSegmentReceived){return;}samplesInfo=boxParser.getSamplesInfo(bytes);sampleList=samplesInfo.sampleList;if(firstFragmentedSubtitleStart===null&&sampleList.length>0){firstFragmentedSubtitleStart=sampleList[0].cts-chunk.start*timescale;}if(codecType.search(_Constants2.default.STPP)>=0){parser=parser!==null?parser:getParser(codecType);for(i=0;i<sampleList.length;i++){var sample=sampleList[i];var sampleStart=sample.cts;var sampleRelStart=sampleStart-firstFragmentedSubtitleStart;this.buffered.add(sampleRelStart/timescale,(sampleRelStart+sample.duration)/timescale);var dataView=new DataView(bytes,sample.offset,sample.subSizes[0]);ccContent=_codemIsoboxer2.default.Utils.dataViewToString(dataView,_Constants2.default.UTF8);var images=[];var subOffset=sample.offset+sample.subSizes[0];for(j=1;j<sample.subSizes.length;j++){var inData=new Uint8Array(bytes,subOffset,sample.subSizes[j]);var raw=String.fromCharCode.apply(null,inData);images.push(raw);subOffset+=sample.subSizes[j];}try{// Only used for Miscrosoft Smooth Streaming support - caption time is relative to sample time. In this case, we apply an offset.\nvar manifest=manifestModel.getValue();var offsetTime=manifest.ttmlTimeIsRelative?sampleStart/timescale:0;result=parser.parse(ccContent,offsetTime,sampleStart/timescale,(sampleStart+sample.duration)/timescale,images);textTracks.addCaptions(currFragmentedTrackIdx,firstFragmentedSubtitleStart/timescale,result);}catch(e){fragmentedFragmentModel.removeExecutedRequestsBeforeTime();this.remove();logger.error('TTML parser error: '+e.message);}}}else{// WebVTT case\nvar captionArray=[];for(i=0;i<sampleList.length;i++){var _sample=sampleList[i];_sample.cts-=firstFragmentedSubtitleStart;this.buffered.add(_sample.cts/timescale,(_sample.cts+_sample.duration)/timescale);var sampleData=bytes.slice(_sample.offset,_sample.offset+_sample.size);// There are boxes inside the sampleData, so we need a ISOBoxer to get at it.\nvar sampleBoxes=_codemIsoboxer2.default.parseBuffer(sampleData);for(j=0;j<sampleBoxes.boxes.length;j++){var box1=sampleBoxes.boxes[j];logger.debug('VTT box1: '+box1.type);if(box1.type==='vtte'){continue;//Empty box\n}if(box1.type==='vttc'){logger.debug('VTT vttc boxes.length = '+box1.boxes.length);for(k=0;k<box1.boxes.length;k++){var box2=box1.boxes[k];logger.debug('VTT box2: '+box2.type);if(box2.type==='payl'){var cue_text=box2.cue_text;logger.debug('VTT cue_text = '+cue_text);var start_time=_sample.cts/timescale;var end_time=(_sample.cts+_sample.duration)/timescale;captionArray.push({start:start_time,end:end_time,data:cue_text,styles:{}});logger.debug('VTT '+start_time+'-'+end_time+' : '+cue_text);}}}}}if(captionArray.length>0){textTracks.addCaptions(currFragmentedTrackIdx,0,captionArray);}}}}else if(mediaType===_Constants2.default.TEXT){var _dataView=new DataView(bytes,0,bytes.byteLength);ccContent=_codemIsoboxer2.default.Utils.dataViewToString(_dataView,_Constants2.default.UTF8);try{result=getParser(codecType).parse(ccContent,0);textTracks.addCaptions(textTracks.getCurrentTrackIdx(),0,result);}catch(e){errHandler.error(new _DashJSError2.default(_Errors2.default.TIMED_TEXT_ERROR_ID_PARSE_CODE,_Errors2.default.TIMED_TEXT_ERROR_MESSAGE_PARSE+e.message,ccContent));}}else if(mediaType===_Constants2.default.VIDEO){//embedded text\nif(chunk.segmentType===_HTTPRequest.HTTPRequest.INIT_SEGMENT_TYPE){if(embeddedTimescale===0){embeddedTimescale=boxParser.getMediaTimescaleFromMoov(bytes);for(i=0;i<embeddedTracks.length;i++){createTextTrackFromMediaInfo(null,embeddedTracks[i]);}}}else{// MediaSegment\nif(embeddedTimescale===0){logger.warn('CEA-608: No timescale for embeddedTextTrack yet');return;}var makeCueAdderForIndex=function makeCueAdderForIndex(self,trackIndex){function newCue(startTime,endTime,captionScreen){var captionsArray=null;if(videoModel.getTTMLRenderingDiv()){captionsArray=embeddedTextHtmlRender.createHTMLCaptionsFromScreen(videoModel.getElement(),startTime,endTime,captionScreen);}else{var text=captionScreen.getDisplayText();captionsArray=[{start:startTime,end:endTime,data:text,styles:{}}];}if(captionsArray){textTracks.addCaptions(trackIndex,0,captionsArray);}}return newCue;};samplesInfo=boxParser.getSamplesInfo(bytes);var sequenceNumber=samplesInfo.lastSequenceNumber;if(!embeddedCea608FieldParsers[0]&&!embeddedCea608FieldParsers[1]){// Time to setup the CEA-608 parsing\nvar field=void 0,handler=void 0,trackIdx=void 0;for(i=0;i<embeddedTracks.length;i++){if(embeddedTracks[i].id===_Constants2.default.CC1){field=0;trackIdx=textTracks.getTrackIdxForId(_Constants2.default.CC1);}else if(embeddedTracks[i].id===_Constants2.default.CC3){field=1;trackIdx=textTracks.getTrackIdxForId(_Constants2.default.CC3);}if(trackIdx===-1){logger.warn('CEA-608: data before track is ready.');return;}handler=makeCueAdderForIndex(this,trackIdx);embeddedCea608FieldParsers[i]=new _cea608Parser2.default.Cea608Parser(i+1,{'newCue':handler},null);}}if(embeddedTimescale){if(embeddedLastSequenceNumber!==null&&sequenceNumber!==embeddedLastSequenceNumber+samplesInfo.numSequences){for(i=0;i<embeddedCea608FieldParsers.length;i++){if(embeddedCea608FieldParsers[i]){embeddedCea608FieldParsers[i].reset();}}}var allCcData=extractCea608Data(bytes,samplesInfo.sampleList);for(var fieldNr=0;fieldNr<embeddedCea608FieldParsers.length;fieldNr++){var ccData=allCcData.fields[fieldNr];var fieldParser=embeddedCea608FieldParsers[fieldNr];if(fieldParser){for(i=0;i<ccData.length;i++){fieldParser.addData(ccData[i][0]/embeddedTimescale,ccData[i][1]);}}}embeddedLastSequenceNumber=sequenceNumber;}}}}/**\n     * Extract CEA-608 data from a buffer of data.\n     * @param {ArrayBuffer} data\n     * @param {Array} samples cue information\n     * @returns {Object|null} ccData corresponding to one segment.\n     */function extractCea608Data(data,samples){if(samples.length===0){return null;}var allCcData={splits:[],fields:[[],[]]};var raw=new DataView(data);for(var i=0;i<samples.length;i++){var sample=samples[i];var cea608Ranges=_cea608Parser2.default.findCea608Nalus(raw,sample.offset,sample.size);var lastSampleTime=null;var idx=0;for(var j=0;j<cea608Ranges.length;j++){var ccData=_cea608Parser2.default.extractCea608DataFromRange(raw,cea608Ranges[j]);for(var k=0;k<2;k++){if(ccData[k].length>0){if(sample.cts!==lastSampleTime){idx=0;}else{idx+=1;}allCcData.fields[k].push([sample.cts+mseTimeOffset*embeddedTimescale,ccData[k],idx]);lastSampleTime=sample.cts;}}}}// Sort by sampleTime ascending order\n// If two packets have the same sampleTime, use them in the order\n// they were received\nallCcData.fields.forEach(function sortField(field){field.sort(function(a,b){if(a[0]===b[0]){return a[2]-b[2];}return a[0]-b[0];});});return allCcData;}function getIsDefault(mediaInfo){//TODO How to tag default. currently same order as listed in manifest.\n// Is there a way to mark a text adaptation set as the default one? DASHIF meeting talk about using role which is being used for track KIND\n// Eg subtitles etc. You can have multiple role tags per adaptation Not defined in the spec yet.\nvar isDefault=false;if(embeddedTracks.length>1&&mediaInfo.isEmbedded){isDefault=mediaInfo.id&&mediaInfo.id===_Constants2.default.CC1;// CC1 if both CC1 and CC3 exist\n}else if(embeddedTracks.length===1){if(mediaInfo.id&&typeof mediaInfo.id==='string'&&mediaInfo.id.substring(0,2)==='CC'){// Either CC1 or CC3\nisDefault=true;}}else if(embeddedTracks.length===0){isDefault=mediaInfo.index===mediaInfos[0].index;}return isDefault;}function getParser(codecType){var parser=void 0;if(codecType.search(_Constants2.default.VTT)>=0){parser=vttParser;}else if(codecType.search(_Constants2.default.TTML)>=0||codecType.search(_Constants2.default.STPP)>=0){parser=ttmlParser;}return parser;}function remove(start,end){//if start and end are not defined, remove all\nif(start===undefined&&start===end){start=this.buffered.start(0);end=this.buffered.end(this.buffered.length-1);}this.buffered.remove(start,end);}function onVideoBufferCleared(e){embeddedTracks.forEach(function(track){var trackIdx=textTracks.getTrackIdxForId(track.id);if(trackIdx>=0){textTracks.deleteCuesFromTrackIdx(trackIdx,e.from,e.to);}});}instance={initialize:initialize,append:append,abort:abort,addEmbeddedTrack:addEmbeddedTrack,resetEmbedded:resetEmbedded,setConfig:setConfig,getConfig:getConfig,setCurrentFragmentedTrackIdx:setCurrentFragmentedTrackIdx,remove:remove,reset:reset};setup();return instance;}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n */TextSourceBuffer.__dashjs_factory_name='TextSourceBuffer';exports.default=_FactoryMaker2.default.getSingletonFactory(TextSourceBuffer);\n//# sourceMappingURL=TextSourceBuffer.js.map\n","var NATIVE_WEAK_MAP = require('../internals/native-weak-map');\nvar global = require('../internals/global');\nvar isObject = require('../internals/is-object');\nvar createNonEnumerableProperty = require('../internals/create-non-enumerable-property');\nvar objectHas = require('../internals/has');\nvar sharedKey = require('../internals/shared-key');\nvar hiddenKeys = require('../internals/hidden-keys');\n\nvar WeakMap = global.WeakMap;\nvar set, get, has;\n\nvar enforce = function (it) {\n  return has(it) ? get(it) : set(it, {});\n};\n\nvar getterFor = function (TYPE) {\n  return function (it) {\n    var state;\n    if (!isObject(it) || (state = get(it)).type !== TYPE) {\n      throw TypeError('Incompatible receiver, ' + TYPE + ' required');\n    } return state;\n  };\n};\n\nif (NATIVE_WEAK_MAP) {\n  var store = new WeakMap();\n  var wmget = store.get;\n  var wmhas = store.has;\n  var wmset = store.set;\n  set = function (it, metadata) {\n    wmset.call(store, it, metadata);\n    return metadata;\n  };\n  get = function (it) {\n    return wmget.call(store, it) || {};\n  };\n  has = function (it) {\n    return wmhas.call(store, it);\n  };\n} else {\n  var STATE = sharedKey('state');\n  hiddenKeys[STATE] = true;\n  set = function (it, metadata) {\n    createNonEnumerableProperty(it, STATE, metadata);\n    return metadata;\n  };\n  get = function (it) {\n    return objectHas(it, STATE) ? it[STATE] : {};\n  };\n  has = function (it) {\n    return objectHas(it, STATE);\n  };\n}\n\nmodule.exports = {\n  set: set,\n  get: get,\n  has: has,\n  enforce: enforce,\n  getterFor: getterFor\n};\n","\"use strict\";Object.defineProperty(exports,\"__esModule\",{value:true});function _classCallCheck(instance,Constructor){if(!(instance instanceof Constructor)){throw new TypeError(\"Cannot call a class as a function\");}}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n *//**\n * @class\n * @ignore\n */var DashJSError=function DashJSError(code,message,data){_classCallCheck(this,DashJSError);this.code=code||null;this.message=message||null;this.data=data||null;};exports.default=DashJSError;\n//# sourceMappingURL=DashJSError.js.map\n","'use strict';/* $Date: 2007-06-12 18:02:31 $ */// from: http://bannister.us/weblog/2007/06/09/simple-base64-encodedecode-javascript/\n// Handles encode/decode of ASCII and Unicode strings.\nvar UTF8={};UTF8.encode=function(s){var u=[];for(var i=0;i<s.length;++i){var c=s.charCodeAt(i);if(c<0x80){u.push(c);}else if(c<0x800){u.push(0xC0|c>>6);u.push(0x80|63&c);}else if(c<0x10000){u.push(0xE0|c>>12);u.push(0x80|63&c>>6);u.push(0x80|63&c);}else{u.push(0xF0|c>>18);u.push(0x80|63&c>>12);u.push(0x80|63&c>>6);u.push(0x80|63&c);}}return u;};UTF8.decode=function(u){var a=[];var i=0;while(i<u.length){var v=u[i++];if(v<0x80){// no need to mask byte\n}else if(v<0xE0){v=(31&v)<<6;v|=63&u[i++];}else if(v<0xF0){v=(15&v)<<12;v|=(63&u[i++])<<6;v|=63&u[i++];}else{v=(7&v)<<18;v|=(63&u[i++])<<12;v|=(63&u[i++])<<6;v|=63&u[i++];}a.push(String.fromCharCode(v));}return a.join('');};var BASE64={};(function(T){var encodeArray=function encodeArray(u){var i=0;var a=[];var n=0|u.length/3;while(0<n--){var v=(u[i]<<16)+(u[i+1]<<8)+u[i+2];i+=3;a.push(T.charAt(63&v>>18));a.push(T.charAt(63&v>>12));a.push(T.charAt(63&v>>6));a.push(T.charAt(63&v));}if(2==u.length-i){var v=(u[i]<<16)+(u[i+1]<<8);a.push(T.charAt(63&v>>18));a.push(T.charAt(63&v>>12));a.push(T.charAt(63&v>>6));a.push('=');}else if(1==u.length-i){var v=u[i]<<16;a.push(T.charAt(63&v>>18));a.push(T.charAt(63&v>>12));a.push('==');}return a.join('');};var R=function(){var a=[];for(var i=0;i<T.length;++i){a[T.charCodeAt(i)]=i;}a['='.charCodeAt(0)]=0;return a;}();var decodeArray=function decodeArray(s){var i=0;var u=[];var n=0|s.length/4;while(0<n--){var v=(R[s.charCodeAt(i)]<<18)+(R[s.charCodeAt(i+1)]<<12)+(R[s.charCodeAt(i+2)]<<6)+R[s.charCodeAt(i+3)];u.push(255&v>>16);u.push(255&v>>8);u.push(255&v);i+=4;}if(u){if('='==s.charAt(i-2)){u.pop();u.pop();}else if('='==s.charAt(i-1)){u.pop();}}return u;};var ASCII={};ASCII.encode=function(s){var u=[];for(var i=0;i<s.length;++i){u.push(s.charCodeAt(i));}return u;};ASCII.decode=function(u){for(var i=0;i<s.length;++i){a[i]=String.fromCharCode(a[i]);}return a.join('');};BASE64.decodeArray=function(s){var u=decodeArray(s);return new Uint8Array(u);};BASE64.encodeASCII=function(s){var u=ASCII.encode(s);return encodeArray(u);};BASE64.decodeASCII=function(s){var a=decodeArray(s);return ASCII.decode(a);};BASE64.encode=function(s){var u=UTF8.encode(s);return encodeArray(u);};BASE64.decode=function(s){var u=decodeArray(s);return UTF8.decode(u);};})(\"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/\");/*The following polyfills are not used in dash.js but have caused multiplayer integration issues.\n Therefore commenting them out.\nif (undefined === btoa) {\n    var btoa = BASE64.encode;\n}\nif (undefined === atob) {\n    var atob = BASE64.decode;\n}\n*/if(typeof exports!=='undefined'){exports.decode=BASE64.decode;exports.decodeArray=BASE64.decodeArray;exports.encode=BASE64.encode;exports.encodeASCII=BASE64.encodeASCII;}\n//# sourceMappingURL=base64.js.map\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _Constants=require('../constants/Constants');var _Constants2=_interopRequireDefault(_Constants);var _FragmentRequest2=require('./FragmentRequest');var _FragmentRequest3=_interopRequireDefault(_FragmentRequest2);function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}function _classCallCheck(instance,Constructor){if(!(instance instanceof Constructor)){throw new TypeError(\"Cannot call a class as a function\");}}function _possibleConstructorReturn(self,call){if(!self){throw new ReferenceError(\"this hasn't been initialised - super() hasn't been called\");}return call&&(typeof call===\"object\"||typeof call===\"function\")?call:self;}function _inherits(subClass,superClass){if(typeof superClass!==\"function\"&&superClass!==null){throw new TypeError(\"Super expression must either be null or a function, not \"+typeof superClass);}subClass.prototype=Object.create(superClass&&superClass.prototype,{constructor:{value:subClass,enumerable:false,writable:true,configurable:true}});if(superClass)Object.setPrototypeOf?Object.setPrototypeOf(subClass,superClass):subClass.__proto__=superClass;}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n *//**\n * @class\n * @ignore\n */var TextRequest=function(_FragmentRequest){_inherits(TextRequest,_FragmentRequest);function TextRequest(url,type){_classCallCheck(this,TextRequest);var _this=_possibleConstructorReturn(this,(TextRequest.__proto__||Object.getPrototypeOf(TextRequest)).call(this));_this.url=url||null;_this.type=type||null;_this.mediaType=_Constants2.default.STREAM;_this.responseType='';//'text' value returns a bad encoding response in Firefox\nreturn _this;}return TextRequest;}(_FragmentRequest3.default);exports.default=TextRequest;\n//# sourceMappingURL=TextRequest.js.map\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n *//**\n * @ignore\n */function Widevine(){var instance=void 0;function getServerURLFromMessage(url/*, message, messageType*/){return url;}function getHTTPMethod()/*messageType*/{return'POST';}function getResponseType()/*keySystemStr, messageType*/{return'arraybuffer';}function getLicenseMessage(serverResponse/*, keySystemStr, messageType*/){return serverResponse;}function getErrorResponse(serverResponse/*, keySystemStr, messageType*/){return String.fromCharCode.apply(null,new Uint8Array(serverResponse));}instance={getServerURLFromMessage:getServerURLFromMessage,getHTTPMethod:getHTTPMethod,getResponseType:getResponseType,getLicenseMessage:getLicenseMessage,getErrorResponse:getErrorResponse};return instance;}Widevine.__dashjs_factory_name='Widevine';exports.default=dashjs.FactoryMaker.getSingletonFactory(Widevine);/* jshint ignore:line */\n//# sourceMappingURL=Widevine.js.map\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n *//**\n  * @ignore\n  */function GenericMetricHandler(){var instance=void 0,metricName=void 0,reportingController=void 0;function initialize(name,rc){metricName=name;reportingController=rc;}function reset(){reportingController=null;metricName=undefined;}function handleNewMetric(metric,vo){// simply pass metric straight through\nif(metric===metricName){if(reportingController){reportingController.report(metricName,vo);}}}instance={initialize:initialize,reset:reset,handleNewMetric:handleNewMetric};return instance;}GenericMetricHandler.__dashjs_factory_name='GenericMetricHandler';exports.default=dashjs.FactoryMaker.getClassFactory(GenericMetricHandler);/* jshint ignore:line */\n//# sourceMappingURL=GenericMetricHandler.js.map\n","\"use strict\";Object.defineProperty(exports,\"__esModule\",{value:true});function _classCallCheck(instance,Constructor){if(!(instance instanceof Constructor)){throw new TypeError(\"Cannot call a class as a function\");}}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n *//**\n * @class\n * @ignore\n */var ManifestInfo=function ManifestInfo(){_classCallCheck(this,ManifestInfo);this.DVRWindowSize=NaN;this.loadedTime=null;this.availableFrom=null;this.minBufferTime=NaN;this.duration=NaN;this.isDynamic=false;this.maxFragmentDuration=null;};exports.default=ManifestInfo;\n//# sourceMappingURL=ManifestInfo.js.map\n","var global = require('../internals/global');\nvar createNonEnumerableProperty = require('../internals/create-non-enumerable-property');\nvar has = require('../internals/has');\nvar setGlobal = require('../internals/set-global');\nvar inspectSource = require('../internals/inspect-source');\nvar InternalStateModule = require('../internals/internal-state');\n\nvar getInternalState = InternalStateModule.get;\nvar enforceInternalState = InternalStateModule.enforce;\nvar TEMPLATE = String(String).split('String');\n\n(module.exports = function (O, key, value, options) {\n  var unsafe = options ? !!options.unsafe : false;\n  var simple = options ? !!options.enumerable : false;\n  var noTargetGet = options ? !!options.noTargetGet : false;\n  if (typeof value == 'function') {\n    if (typeof key == 'string' && !has(value, 'name')) createNonEnumerableProperty(value, 'name', key);\n    enforceInternalState(value).source = TEMPLATE.join(typeof key == 'string' ? key : '');\n  }\n  if (O === global) {\n    if (simple) O[key] = value;\n    else setGlobal(key, value);\n    return;\n  } else if (!unsafe) {\n    delete O[key];\n  } else if (!noTargetGet && O[key]) {\n    simple = true;\n  }\n  if (simple) O[key] = value;\n  else createNonEnumerableProperty(O, key, value);\n// add fake Function#toString for correct work wrapped methods / constructors with methods like LoDash isNative\n})(Function.prototype, 'toString', function toString() {\n  return typeof this == 'function' && getInternalState(this).source || inspectSource(this);\n});\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _URIFragmentData=require('../vo/URIFragmentData');var _URIFragmentData2=_interopRequireDefault(_URIFragmentData);var _FactoryMaker=require('../../core/FactoryMaker');var _FactoryMaker2=_interopRequireDefault(_FactoryMaker);function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}/**\n * Model class managing URI fragments.\n * @ignore\n *//**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n */function URIFragmentModel(){var instance=void 0,URIFragmentDataVO=void 0;/**\n     * @param {string} uri The URI to parse for fragment extraction\n     * @memberof module:URIFragmentModel\n     * @instance\n     */function initialize(uri){URIFragmentDataVO=new _URIFragmentData2.default();if(!uri)return null;var hashIndex=uri.indexOf('#');if(hashIndex!==-1){var fragments=uri.substr(hashIndex+1).split('&');for(var i=0,len=fragments.length;i<len;++i){var fragment=fragments[i];var equalIndex=fragment.indexOf('=');if(equalIndex!==-1){var key=fragment.substring(0,equalIndex);if(URIFragmentDataVO.hasOwnProperty(key)){URIFragmentDataVO[key]=fragment.substr(equalIndex+1);}}}}}/**\n     * @returns {URIFragmentData} Object containing supported URI fragments\n     * @memberof module:URIFragmentModel\n     * @instance\n     */function getURIFragmentData(){return URIFragmentDataVO;}instance={initialize:initialize,getURIFragmentData:getURIFragmentData};return instance;}URIFragmentModel.__dashjs_factory_name='URIFragmentModel';exports.default=_FactoryMaker2.default.getSingletonFactory(URIFragmentModel);\n//# sourceMappingURL=URIFragmentModel.js.map\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _FactoryMaker=require('../../../core/FactoryMaker');var _FactoryMaker2=_interopRequireDefault(_FactoryMaker);var _Debug=require('../../../core/Debug');var _Debug2=_interopRequireDefault(_Debug);var _SwitchRequest=require('../SwitchRequest');var _SwitchRequest2=_interopRequireDefault(_SwitchRequest);var _Constants=require('../../constants/Constants');var _Constants2=_interopRequireDefault(_Constants);var _MetricsConstants=require('../../constants/MetricsConstants');var _MetricsConstants2=_interopRequireDefault(_MetricsConstants);function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}function ThroughputRule(config){config=config||{};var context=this.context;var dashMetrics=config.dashMetrics;var instance=void 0,logger=void 0;function setup(){logger=(0,_Debug2.default)(context).getInstance().getLogger(instance);}function checkConfig(){if(!dashMetrics||!dashMetrics.hasOwnProperty('getCurrentBufferState')){throw new Error(_Constants2.default.MISSING_CONFIG_ERROR);}}function getMaxIndex(rulesContext){var switchRequest=(0,_SwitchRequest2.default)(context).create();if(!rulesContext||!rulesContext.hasOwnProperty('getMediaInfo')||!rulesContext.hasOwnProperty('getMediaType')||!rulesContext.hasOwnProperty('useBufferOccupancyABR')||!rulesContext.hasOwnProperty('getAbrController')||!rulesContext.hasOwnProperty('getScheduleController')){return switchRequest;}checkConfig();var mediaInfo=rulesContext.getMediaInfo();var mediaType=rulesContext.getMediaType();var currentBufferState=dashMetrics.getCurrentBufferState(mediaType);var scheduleController=rulesContext.getScheduleController();var abrController=rulesContext.getAbrController();var streamInfo=rulesContext.getStreamInfo();var isDynamic=streamInfo&&streamInfo.manifestInfo?streamInfo.manifestInfo.isDynamic:null;var throughputHistory=abrController.getThroughputHistory();var throughput=throughputHistory.getSafeAverageThroughput(mediaType,isDynamic);var latency=throughputHistory.getAverageLatency(mediaType);var useBufferOccupancyABR=rulesContext.useBufferOccupancyABR();if(isNaN(throughput)||!currentBufferState||useBufferOccupancyABR){return switchRequest;}if(abrController.getAbandonmentStateFor(mediaType)!==_MetricsConstants2.default.ABANDON_LOAD){if(currentBufferState.state===_MetricsConstants2.default.BUFFER_LOADED||isDynamic){switchRequest.quality=abrController.getQualityForBitrate(mediaInfo,throughput,latency);scheduleController.setTimeToLoadDelay(0);logger.debug('['+mediaType+'] requesting switch to index: ',switchRequest.quality,'Average throughput',Math.round(throughput),'kbps');switchRequest.reason={throughput:throughput,latency:latency};}}return switchRequest;}function reset(){// no persistent information to reset\n}instance={getMaxIndex:getMaxIndex,reset:reset};setup();return instance;}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n */ThroughputRule.__dashjs_factory_name='ThroughputRule';exports.default=_FactoryMaker2.default.getClassFactory(ThroughputRule);\n//# sourceMappingURL=ThroughputRule.js.map\n","function _extends() {\n  module.exports = _extends = Object.assign || function (target) {\n    for (var i = 1; i < arguments.length; i++) {\n      var source = arguments[i];\n\n      for (var key in source) {\n        if (Object.prototype.hasOwnProperty.call(source, key)) {\n          target[key] = source[key];\n        }\n      }\n    }\n\n    return target;\n  };\n\n  module.exports[\"default\"] = module.exports, module.exports.__esModule = true;\n  return _extends.apply(this, arguments);\n}\n\nmodule.exports = _extends;\nmodule.exports[\"default\"] = module.exports, module.exports.__esModule = true;","var isObject = require('../internals/is-object');\nvar setPrototypeOf = require('../internals/object-set-prototype-of');\n\n// makes subclassing work correct for wrapped built-ins\nmodule.exports = function ($this, dummy, Wrapper) {\n  var NewTarget, NewTargetPrototype;\n  if (\n    // it can work only with native `setPrototypeOf`\n    setPrototypeOf &&\n    // we haven't completely correct pre-ES6 way for getting `new.target`, so use this\n    typeof (NewTarget = dummy.constructor) == 'function' &&\n    NewTarget !== Wrapper &&\n    isObject(NewTargetPrototype = NewTarget.prototype) &&\n    NewTargetPrototype !== Wrapper.prototype\n  ) setPrototypeOf($this, NewTargetPrototype);\n  return $this;\n};\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _typeof=typeof Symbol===\"function\"&&typeof Symbol.iterator===\"symbol\"?function(obj){return typeof obj;}:function(obj){return obj&&typeof Symbol===\"function\"&&obj.constructor===Symbol&&obj!==Symbol.prototype?\"symbol\":typeof obj;};/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n */exports.checkParameterType=checkParameterType;exports.checkInteger=checkInteger;exports.checkRange=checkRange;exports.checkIsVideoOrAudioType=checkIsVideoOrAudioType;var _Constants=require('../constants/Constants');var _Constants2=_interopRequireDefault(_Constants);function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}function checkParameterType(parameter,type){if((typeof parameter==='undefined'?'undefined':_typeof(parameter))!==type){throw _Constants2.default.BAD_ARGUMENT_ERROR;}}function checkInteger(parameter){var isInt=parameter!==null&&!isNaN(parameter)&&parameter%1===0;if(!isInt){throw _Constants2.default.BAD_ARGUMENT_ERROR+' : argument is not an integer';}}function checkRange(parameter,min,max){if(parameter<min||parameter>max){throw _Constants2.default.BAD_ARGUMENT_ERROR+' : argument out of range';}}function checkIsVideoOrAudioType(type){if(typeof type!=='string'||type!==_Constants2.default.AUDIO&&type!==_Constants2.default.VIDEO){throw _Constants2.default.BAD_ARGUMENT_ERROR;}}\n//# sourceMappingURL=SupervisorTools.js.map\n","\"use strict\";Object.defineProperty(exports,\"__esModule\",{value:true});function _classCallCheck(instance,Constructor){if(!(instance instanceof Constructor)){throw new TypeError(\"Cannot call a class as a function\");}}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n *//**\n * @class\n * @ignore\n */var SchedulingInfo=/**\n     * @description This Object holds reference to the index handling of the current fragment being loaded or executed.\n     */function SchedulingInfo(){_classCallCheck(this,SchedulingInfo);/**\n         * Type of stream Audio | Video | FragmentedText\n         * @public\n         */this.mediaType=null;/**\n         * Time of the scheduling event.\n         * @public\n         */this.t=null;/**\n         * Type of fragment (initialization | media)\n         * @public\n         */this.type=null;/**\n         * Presentation start time of fragment\n         * @public\n         */this.startTime=null;/**\n         * Availability start time of fragment\n         * @public\n         */this.availabilityStartTime=null;/**\n         * Duration of fragment\n         * @public\n         */this.duration=null;/**\n         * Bit Rate Quality of fragment\n         * @public\n         */this.quality=null;/**\n         * Range of fragment\n         * @public\n         */this.range=null;/**\n         * Current state of fragment\n         * @public\n         */this.state=null;};exports.default=SchedulingInfo;\n//# sourceMappingURL=SchedulingInfo.js.map\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _MetricsController=require('./MetricsController');var _MetricsController2=_interopRequireDefault(_MetricsController);var _ManifestParsing=require('../utils/ManifestParsing');var _ManifestParsing2=_interopRequireDefault(_ManifestParsing);var _MetricsReportingEvents=require('../MetricsReportingEvents');var _MetricsReportingEvents2=_interopRequireDefault(_MetricsReportingEvents);function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}function MetricsCollectionController(config){config=config||{};var metricsControllers={};var context=this.context;var eventBus=config.eventBus;var events=config.events;function update(e){if(e.error){return;}// start by assuming all existing controllers need removing\nvar controllersToRemove=Object.keys(metricsControllers);var metrics=(0,_ManifestParsing2.default)(context).getInstance({adapter:config.adapter,constants:config.constants}).getMetrics(e.manifest);metrics.forEach(function(m){var key=JSON.stringify(m);if(!metricsControllers.hasOwnProperty(key)){try{var controller=(0,_MetricsController2.default)(context).create(config);controller.initialize(m);metricsControllers[key]=controller;}catch(e){// fail quietly\n}}else{// we still need this controller - delete from removal list\ncontrollersToRemove.splice(key,1);}});// now remove the unwanted controllers\ncontrollersToRemove.forEach(function(c){metricsControllers[c].reset();delete metricsControllers[c];});eventBus.trigger(_MetricsReportingEvents2.default.METRICS_INITIALISATION_COMPLETE);}function resetMetricsControllers(){Object.keys(metricsControllers).forEach(function(key){metricsControllers[key].reset();});metricsControllers={};}function setup(){eventBus.on(events.MANIFEST_UPDATED,update);eventBus.on(events.STREAM_TEARDOWN_COMPLETE,resetMetricsControllers);}function reset(){eventBus.off(events.MANIFEST_UPDATED,update);eventBus.off(events.STREAM_TEARDOWN_COMPLETE,resetMetricsControllers);}setup();return{reset:reset};}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n */MetricsCollectionController.__dashjs_factory_name='MetricsCollectionController';exports.default=dashjs.FactoryMaker.getClassFactory(MetricsCollectionController);/* jshint ignore:line */\n//# sourceMappingURL=MetricsCollectionController.js.map\n","exports.f = Object.getOwnPropertySymbols;\n","var path = require('../internals/path');\nvar has = require('../internals/has');\nvar wrappedWellKnownSymbolModule = require('../internals/well-known-symbol-wrapped');\nvar defineProperty = require('../internals/object-define-property').f;\n\nmodule.exports = function (NAME) {\n  var Symbol = path.Symbol || (path.Symbol = {});\n  if (!has(Symbol, NAME)) defineProperty(Symbol, NAME, {\n    value: wrappedWellKnownSymbolModule.f(NAME)\n  });\n};\n","// Copyright Joyent, Inc. and other Node contributors.\n//\n// Permission is hereby granted, free of charge, to any person obtaining a\n// copy of this software and associated documentation files (the\n// \"Software\"), to deal in the Software without restriction, including\n// without limitation the rights to use, copy, modify, merge, publish,\n// distribute, sublicense, and/or sell copies of the Software, and to permit\n// persons to whom the Software is furnished to do so, subject to the\n// following conditions:\n//\n// The above copyright notice and this permission notice shall be included\n// in all copies or substantial portions of the Software.\n//\n// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS\n// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF\n// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN\n// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,\n// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR\n// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE\n// USE OR OTHER DEALINGS IN THE SOFTWARE.\n\n// a passthrough stream.\n// basically just the most minimal sort of Transform stream.\n// Every written chunk gets output as-is.\n\n'use strict';\n\nmodule.exports = PassThrough;\n\nvar Transform = require('./_stream_transform');\n\n/*<replacement>*/\nvar util = Object.create(require('core-util-is'));\nutil.inherits = require('inherits');\n/*</replacement>*/\n\nutil.inherits(PassThrough, Transform);\n\nfunction PassThrough(options) {\n  if (!(this instanceof PassThrough)) return new PassThrough(options);\n\n  Transform.call(this, options);\n}\n\nPassThrough.prototype._transform = function (chunk, encoding, cb) {\n  cb(null, chunk);\n};","// IE8- don't enum bug keys\nmodule.exports = [\n  'constructor',\n  'hasOwnProperty',\n  'isPrototypeOf',\n  'propertyIsEnumerable',\n  'toLocaleString',\n  'toString',\n  'valueOf'\n];\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _XHRLoader=require('./XHRLoader');var _XHRLoader2=_interopRequireDefault(_XHRLoader);var _FetchLoader=require('./FetchLoader');var _FetchLoader2=_interopRequireDefault(_FetchLoader);var _HTTPRequest=require('../vo/metrics/HTTPRequest');var _FactoryMaker=require('../../core/FactoryMaker');var _FactoryMaker2=_interopRequireDefault(_FactoryMaker);var _DashJSError=require('../vo/DashJSError');var _DashJSError2=_interopRequireDefault(_DashJSError);var _CmcdModel=require('../models/CmcdModel');var _CmcdModel2=_interopRequireDefault(_CmcdModel);var _Utils=require('../../core/Utils');var _Utils2=_interopRequireDefault(_Utils);function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}function _defineProperty(obj,key,value){if(key in obj){Object.defineProperty(obj,key,{value:value,enumerable:true,configurable:true,writable:true});}else{obj[key]=value;}return obj;}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n *//**\n * @module HTTPLoader\n * @ignore\n * @description Manages download of resources via HTTP.\n * @param {Object} cfg - dependancies from parent\n */function HTTPLoader(cfg){cfg=cfg||{};var context=this.context;var errHandler=cfg.errHandler;var dashMetrics=cfg.dashMetrics;var mediaPlayerModel=cfg.mediaPlayerModel;var requestModifier=cfg.requestModifier;var boxParser=cfg.boxParser;var useFetch=cfg.useFetch||false;var errors=cfg.errors;var instance=void 0,requests=void 0,delayedRequests=void 0,retryRequests=void 0,downloadErrorToRequestTypeMap=void 0,cmcdModel=void 0;function setup(){var _downloadErrorToReque;requests=[];delayedRequests=[];retryRequests=[];cmcdModel=(0,_CmcdModel2.default)(context).getInstance();downloadErrorToRequestTypeMap=(_downloadErrorToReque={},_defineProperty(_downloadErrorToReque,_HTTPRequest.HTTPRequest.MPD_TYPE,errors.DOWNLOAD_ERROR_ID_MANIFEST_CODE),_defineProperty(_downloadErrorToReque,_HTTPRequest.HTTPRequest.XLINK_EXPANSION_TYPE,errors.DOWNLOAD_ERROR_ID_XLINK_CODE),_defineProperty(_downloadErrorToReque,_HTTPRequest.HTTPRequest.INIT_SEGMENT_TYPE,errors.DOWNLOAD_ERROR_ID_INITIALIZATION_CODE),_defineProperty(_downloadErrorToReque,_HTTPRequest.HTTPRequest.MEDIA_SEGMENT_TYPE,errors.DOWNLOAD_ERROR_ID_CONTENT_CODE),_defineProperty(_downloadErrorToReque,_HTTPRequest.HTTPRequest.INDEX_SEGMENT_TYPE,errors.DOWNLOAD_ERROR_ID_CONTENT_CODE),_defineProperty(_downloadErrorToReque,_HTTPRequest.HTTPRequest.BITSTREAM_SWITCHING_SEGMENT_TYPE,errors.DOWNLOAD_ERROR_ID_CONTENT_CODE),_defineProperty(_downloadErrorToReque,_HTTPRequest.HTTPRequest.OTHER_TYPE,errors.DOWNLOAD_ERROR_ID_CONTENT_CODE),_downloadErrorToReque);}function internalLoad(config,remainingAttempts){var request=config.request;var traces=[];var firstProgress=true;var needFailureReport=true;var requestStartTime=new Date();var lastTraceTime=requestStartTime;var lastTraceReceivedCount=0;var httpRequest=void 0;if(!requestModifier||!dashMetrics||!errHandler){throw new Error('config object is not correct or missing');}var handleLoaded=function handleLoaded(success){needFailureReport=false;request.requestStartDate=requestStartTime;request.requestEndDate=new Date();request.firstByteDate=request.firstByteDate||requestStartTime;if(!request.checkExistenceOnly){dashMetrics.addHttpRequest(request,httpRequest.response?httpRequest.response.responseURL:null,httpRequest.response?httpRequest.response.status:null,httpRequest.response&&httpRequest.response.getAllResponseHeaders?httpRequest.response.getAllResponseHeaders():httpRequest.response?httpRequest.response.responseHeaders:[],success?traces:null);if(request.type===_HTTPRequest.HTTPRequest.MPD_TYPE){dashMetrics.addManifestUpdate(request.type,request.requestStartDate,request.requestEndDate);}}};var onloadend=function onloadend(){if(requests.indexOf(httpRequest)===-1){return;}else{requests.splice(requests.indexOf(httpRequest),1);}if(needFailureReport){handleLoaded(false);if(remainingAttempts>0){remainingAttempts--;var retryRequest={config:config};retryRequests.push(retryRequest);retryRequest.timeout=setTimeout(function(){if(retryRequests.indexOf(retryRequest)===-1){return;}else{retryRequests.splice(retryRequests.indexOf(retryRequest),1);}internalLoad(config,remainingAttempts);},mediaPlayerModel.getRetryIntervalsForType(request.type));}else{errHandler.error(new _DashJSError2.default(downloadErrorToRequestTypeMap[request.type],request.url+' is not available',{request:request,response:httpRequest.response}));if(config.error){config.error(request,'error',httpRequest.response.statusText);}if(config.complete){config.complete(request,httpRequest.response.statusText);}}}};var progress=function progress(event){var currentTime=new Date();if(firstProgress){firstProgress=false;if(!event.lengthComputable||event.lengthComputable&&event.total!==event.loaded){request.firstByteDate=currentTime;}}if(event.lengthComputable){request.bytesLoaded=event.loaded;request.bytesTotal=event.total;}if(!event.noTrace){traces.push({s:lastTraceTime,d:event.time?event.time:currentTime.getTime()-lastTraceTime.getTime(),b:[event.loaded?event.loaded-lastTraceReceivedCount:0]});lastTraceTime=currentTime;lastTraceReceivedCount=event.loaded;}if(config.progress&&event){config.progress(event);}};var onload=function onload(){if(httpRequest.response.status>=200&&httpRequest.response.status<=299){handleLoaded(true);if(config.success){config.success(httpRequest.response.response,httpRequest.response.statusText,httpRequest.response.responseURL);}if(config.complete){config.complete(request,httpRequest.response.statusText);}}};var onabort=function onabort(){if(config.abort){config.abort(request);}};var loader=void 0;if(useFetch&&window.fetch&&request.responseType==='arraybuffer'&&request.type===_HTTPRequest.HTTPRequest.MEDIA_SEGMENT_TYPE){loader=(0,_FetchLoader2.default)(context).create({requestModifier:requestModifier,boxParser:boxParser});}else{loader=(0,_XHRLoader2.default)(context).create({requestModifier:requestModifier});}var modifiedUrl=requestModifier.modifyRequestURL(request.url);var additionalQueryParameter=_getAdditionalQueryParameter(request);modifiedUrl=_Utils2.default.addAditionalQueryParameterToUrl(modifiedUrl,additionalQueryParameter);var verb=request.checkExistenceOnly?_HTTPRequest.HTTPRequest.HEAD:_HTTPRequest.HTTPRequest.GET;var withCredentials=mediaPlayerModel.getXHRWithCredentialsForType(request.type);httpRequest={url:modifiedUrl,method:verb,withCredentials:withCredentials,request:request,onload:onload,onend:onloadend,onerror:onloadend,progress:progress,onabort:onabort,loader:loader};// Adds the ability to delay single fragment loading time to control buffer.\nvar now=new Date().getTime();if(isNaN(request.delayLoadingTime)||now>=request.delayLoadingTime){// no delay - just send\nrequests.push(httpRequest);loader.load(httpRequest);}else{// delay\nvar delayedRequest={httpRequest:httpRequest};delayedRequests.push(delayedRequest);delayedRequest.delayTimeout=setTimeout(function(){if(delayedRequests.indexOf(delayedRequest)===-1){return;}else{delayedRequests.splice(delayedRequests.indexOf(delayedRequest),1);}try{requestStartTime=new Date();lastTraceTime=requestStartTime;requests.push(delayedRequest.httpRequest);loader.load(delayedRequest.httpRequest);}catch(e){delayedRequest.httpRequest.onerror();}},request.delayLoadingTime-now);}}function _getAdditionalQueryParameter(request){try{var additionalQueryParameter=[];var cmcdQueryParameter=cmcdModel.getQueryParameter(request);if(cmcdQueryParameter){additionalQueryParameter.push(cmcdQueryParameter);}return additionalQueryParameter;}catch(e){return[];}}/**\n     * Initiates a download of the resource described by config.request\n     * @param {Object} config - contains request (FragmentRequest or derived type), and callbacks\n     * @memberof module:HTTPLoader\n     * @instance\n     */function load(config){if(config.request){internalLoad(config,mediaPlayerModel.getRetryAttemptsForType(config.request.type));}else{if(config.error){config.error(config.request,'error');}}}/**\n     * Aborts any inflight downloads\n     * @memberof module:HTTPLoader\n     * @instance\n     */function abort(){retryRequests.forEach(function(t){clearTimeout(t.timeout);// abort request in order to trigger LOADING_ABANDONED event\nif(t.config.request&&t.config.abort){t.config.abort(t.config.request);}});retryRequests=[];delayedRequests.forEach(function(x){return clearTimeout(x.delayTimeout);});delayedRequests=[];requests.forEach(function(x){// abort will trigger onloadend which we don't want\n// when deliberately aborting inflight requests -\n// set them to undefined so they are not called\nx.onloadend=x.onerror=x.onprogress=undefined;x.loader.abort(x);});requests=[];}instance={load:load,abort:abort};setup();return instance;}HTTPLoader.__dashjs_factory_name='HTTPLoader';var factory=_FactoryMaker2.default.getClassFactory(HTTPLoader);exports.default=factory;\n//# sourceMappingURL=HTTPLoader.js.map\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _Segment=require('./vo/Segment');var _Segment2=_interopRequireDefault(_Segment);var _DashJSError=require('../streaming/vo/DashJSError');var _DashJSError2=_interopRequireDefault(_DashJSError);var _FactoryMaker=require('../core/FactoryMaker');var _FactoryMaker2=_interopRequireDefault(_FactoryMaker);var _FragmentRequest=require('../streaming/vo/FragmentRequest');var _FragmentRequest2=_interopRequireDefault(_FragmentRequest);var _URLLoader=require('../streaming/net/URLLoader');var _URLLoader2=_interopRequireDefault(_URLLoader);function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}function SegmentBaseLoader(){var context=this.context;var instance=void 0,logger=void 0,errHandler=void 0,boxParser=void 0,requestModifier=void 0,dashMetrics=void 0,settings=void 0,mediaPlayerModel=void 0,urlLoader=void 0,events=void 0,eventBus=void 0,errors=void 0,constants=void 0,dashConstants=void 0,urlUtils=void 0,baseURLController=void 0;function setup(){}function initialize(){urlLoader=(0,_URLLoader2.default)(context).create({errHandler:errHandler,dashMetrics:dashMetrics,mediaPlayerModel:mediaPlayerModel,requestModifier:requestModifier,useFetch:settings?settings.get().streaming.lowLatencyEnabled:null,boxParser:boxParser,errors:errors,urlUtils:urlUtils,constants:constants,dashConstants:dashConstants});}function setConfig(config){if(config.baseURLController){baseURLController=config.baseURLController;}if(config.dashMetrics){dashMetrics=config.dashMetrics;}if(config.mediaPlayerModel){mediaPlayerModel=config.mediaPlayerModel;}if(config.errHandler){errHandler=config.errHandler;}if(config.settings){settings=config.settings;}if(config.boxParser){boxParser=config.boxParser;}if(config.events){events=config.events;}if(config.eventBus){eventBus=config.eventBus;}if(config.debug){logger=config.debug.getLogger(instance);}if(config.requestModifier){requestModifier=config.requestModifier;}if(config.errors){errors=config.errors;}if(config.urlUtils){urlUtils=config.urlUtils;}if(config.constants){constants=config.constants;}if(config.dashConstants){dashConstants=config.dashConstants;}}function checkConfig(){if(!baseURLController||!baseURLController.hasOwnProperty('resolve')){throw new Error('setConfig function has to be called previously');}}function loadInitialization(representation,loadingInfo){checkConfig();var initRange=null;var baseUrl=representation?baseURLController.resolve(representation.path):null;var info=loadingInfo||{init:true,url:baseUrl?baseUrl.url:undefined,range:{start:0,end:1500},searching:false,bytesLoaded:0,bytesToLoad:1500,mediaType:representation&&representation.adaptation?representation.adaptation.type:null};logger.debug('Start searching for initialization.');var request=getFragmentRequest(info);var onload=function onload(response){info.bytesLoaded=info.range.end;initRange=boxParser.findInitRange(response);if(initRange){representation.range=initRange;// note that we don't explicitly set rep.initialization as this\n// will be computed when all BaseURLs are resolved later\neventBus.trigger(events.INITIALIZATION_LOADED,{representation:representation});}else{info.range.end=info.bytesLoaded+info.bytesToLoad;loadInitialization(representation,info);}};var onerror=function onerror(){eventBus.trigger(events.INITIALIZATION_LOADED,{representation:representation});};urlLoader.load({request:request,success:onload,error:onerror});logger.debug('Perform init search: '+info.url);}function loadSegments(representation,type,range,loadingInfo,callback){checkConfig();if(range&&(range.start===undefined||range.end===undefined)){var parts=range?range.toString().split('-'):null;range=parts?{start:parseFloat(parts[0]),end:parseFloat(parts[1])}:null;}callback=!callback?onLoaded:callback;var isoFile=null;var sidx=null;var hasRange=!!range;var baseUrl=representation?baseURLController.resolve(representation.path):null;var info={init:false,url:baseUrl?baseUrl.url:undefined,range:hasRange?range:{start:0,end:1500},searching:!hasRange,bytesLoaded:loadingInfo?loadingInfo.bytesLoaded:0,bytesToLoad:1500,mediaType:representation&&representation.adaptation?representation.adaptation.type:null};var request=getFragmentRequest(info);var onload=function onload(response){var extraBytes=info.bytesToLoad;var loadedLength=response.byteLength;info.bytesLoaded=info.range.end-info.range.start;isoFile=boxParser.parse(response);sidx=isoFile.getBox('sidx');if(!sidx||!sidx.isComplete){if(sidx){info.range.start=sidx.offset||info.range.start;info.range.end=info.range.start+(sidx.size||extraBytes);}else if(loadedLength<info.bytesLoaded){// if we have reached a search limit or if we have reached the end of the file we have to stop trying to find sidx\ncallback(null,representation,type);return;}else{var lastBox=isoFile.getLastBox();if(lastBox&&lastBox.size){info.range.start=lastBox.offset+lastBox.size;info.range.end=info.range.start+extraBytes;}else{info.range.end+=extraBytes;}}loadSegments(representation,type,info.range,info,callback);}else{var ref=sidx.references;var loadMultiSidx=void 0,segments=void 0;if(ref!==null&&ref!==undefined&&ref.length>0){loadMultiSidx=ref[0].reference_type===1;}if(loadMultiSidx){logger.debug('Initiate multiple SIDX load.');info.range.end=info.range.start+sidx.size;var j=void 0,len=void 0,ss=void 0,se=void 0,r=void 0;var segs=[];var count=0;var offset=(sidx.offset||info.range.start)+sidx.size;var tmpCallback=function tmpCallback(result){if(result){segs=segs.concat(result);count++;if(count>=len){// http requests can be processed in a wrong order, so, we have to reorder segments with an ascending start Time order\nsegs.sort(function(a,b){return a.startTime-b.startTime<0?-1:0;});callback(segs,representation,type);}}else{callback(null,representation,type);}};for(j=0,len=ref.length;j<len;j++){ss=offset;se=offset+ref[j].referenced_size-1;offset=offset+ref[j].referenced_size;r={start:ss,end:se};loadSegments(representation,null,r,info,tmpCallback);}}else{logger.debug('Parsing segments from SIDX. representation '+representation.adaptation.type+' - id: '+representation.id+' for range : '+info.range.start+' - '+info.range.end);segments=getSegmentsForSidx(sidx,info);callback(segments,representation,type);}}};var onerror=function onerror(){callback(null,representation,type);};urlLoader.load({request:request,success:onload,error:onerror});logger.debug('Perform SIDX load: '+info.url+' with range : '+info.range.start+' - '+info.range.end);}function reset(){urlLoader.abort();urlLoader=null;errHandler=null;boxParser=null;requestModifier=null;}function getSegmentsForSidx(sidx,info){var refs=sidx.references;var len=refs.length;var timescale=sidx.timescale;var time=sidx.earliest_presentation_time;var start=info.range.start+sidx.offset+sidx.first_offset+sidx.size;var segments=[];var segment=void 0,end=void 0,duration=void 0,size=void 0;for(var i=0;i<len;i++){duration=refs[i].subsegment_duration;size=refs[i].referenced_size;segment=new _Segment2.default();// note that we don't explicitly set segment.media as this will be\n// computed when all BaseURLs are resolved later\nsegment.duration=duration;segment.startTime=time;segment.timescale=timescale;end=start+size-1;segment.mediaRange=start+'-'+end;segments.push(segment);time+=duration;start+=size;}return segments;}function getFragmentRequest(info){if(!info.url){return;}var request=new _FragmentRequest2.default();request.setInfo(info);return request;}function onLoaded(segments,representation,type){if(segments){eventBus.trigger(events.SEGMENTS_LOADED,{segments:segments,representation:representation,mediaType:type});}else{eventBus.trigger(events.SEGMENTS_LOADED,{segments:null,representation:representation,mediaType:type,error:new _DashJSError2.default(errors.SEGMENT_BASE_LOADER_ERROR_CODE,errors.SEGMENT_BASE_LOADER_ERROR_MESSAGE)});}}instance={setConfig:setConfig,initialize:initialize,loadInitialization:loadInitialization,loadSegments:loadSegments,reset:reset};setup();return instance;}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n */SegmentBaseLoader.__dashjs_factory_name='SegmentBaseLoader';exports.default=_FactoryMaker2.default.getSingletonFactory(SegmentBaseLoader);\n//# sourceMappingURL=SegmentBaseLoader.js.map\n","'use strict';\n\n/**\n * A `Cancel` is an object that is thrown when an operation is canceled.\n *\n * @class\n * @param {string=} message The message.\n */\nfunction Cancel(message) {\n  this.message = message;\n}\n\nCancel.prototype.toString = function toString() {\n  return 'Cancel' + (this.message ? ': ' + this.message : '');\n};\n\nCancel.prototype.__CANCEL__ = true;\n\nmodule.exports = Cancel;\n","'use strict';\n\nvar utils = require('./../utils');\n\nmodule.exports = (\n  utils.isStandardBrowserEnv() ?\n\n  // Standard browser envs support document.cookie\n    (function standardBrowserEnv() {\n      return {\n        write: function write(name, value, expires, path, domain, secure) {\n          var cookie = [];\n          cookie.push(name + '=' + encodeURIComponent(value));\n\n          if (utils.isNumber(expires)) {\n            cookie.push('expires=' + new Date(expires).toGMTString());\n          }\n\n          if (utils.isString(path)) {\n            cookie.push('path=' + path);\n          }\n\n          if (utils.isString(domain)) {\n            cookie.push('domain=' + domain);\n          }\n\n          if (secure === true) {\n            cookie.push('secure');\n          }\n\n          document.cookie = cookie.join('; ');\n        },\n\n        read: function read(name) {\n          var match = document.cookie.match(new RegExp('(^|;\\\\s*)(' + name + ')=([^;]*)'));\n          return (match ? decodeURIComponent(match[3]) : null);\n        },\n\n        remove: function remove(name) {\n          this.write(name, '', Date.now() - 86400000);\n        }\n      };\n    })() :\n\n  // Non standard browser env (web workers, react-native) lack needed support.\n    (function nonStandardBrowserEnv() {\n      return {\n        write: function write() {},\n        read: function read() { return null; },\n        remove: function remove() {}\n      };\n    })()\n);\n","var requireObjectCoercible = require('../internals/require-object-coercible');\n\n// `ToObject` abstract operation\n// https://tc39.github.io/ecma262/#sec-toobject\nmodule.exports = function (argument) {\n  return Object(requireObjectCoercible(argument));\n};\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _DVBErrorsTranslator=require('./utils/DVBErrorsTranslator');var _DVBErrorsTranslator2=_interopRequireDefault(_DVBErrorsTranslator);var _MetricsReportingEvents=require('./MetricsReportingEvents');var _MetricsReportingEvents2=_interopRequireDefault(_MetricsReportingEvents);var _MetricsCollectionController=require('./controllers/MetricsCollectionController');var _MetricsCollectionController2=_interopRequireDefault(_MetricsCollectionController);var _MetricsHandlerFactory=require('./metrics/MetricsHandlerFactory');var _MetricsHandlerFactory2=_interopRequireDefault(_MetricsHandlerFactory);var _ReportingFactory=require('./reporting/ReportingFactory');var _ReportingFactory2=_interopRequireDefault(_ReportingFactory);function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}function MetricsReporting(){var context=this.context;var instance=void 0,dvbErrorsTranslator=void 0;/**\n     * Create a MetricsCollectionController, and a DVBErrorsTranslator\n     * @param {Object} config - dependancies from owner\n     * @return {MetricsCollectionController} Metrics Collection Controller\n     */function createMetricsReporting(config){dvbErrorsTranslator=(0,_DVBErrorsTranslator2.default)(context).getInstance({eventBus:config.eventBus,dashMetrics:config.dashMetrics,metricsConstants:config.metricsConstants,events:config.events});return(0,_MetricsCollectionController2.default)(context).create(config);}/**\n     * Get the ReportingFactory to allow new reporters to be registered\n     * @return {ReportingFactory} Reporting Factory\n     */function getReportingFactory(){return(0,_ReportingFactory2.default)(context).getInstance();}/**\n     * Get the MetricsHandlerFactory to allow new handlers to be registered\n     * @return {MetricsHandlerFactory} Metrics Handler Factory\n     */function getMetricsHandlerFactory(){return(0,_MetricsHandlerFactory2.default)(context).getInstance();}instance={createMetricsReporting:createMetricsReporting,getReportingFactory:getReportingFactory,getMetricsHandlerFactory:getMetricsHandlerFactory};return instance;}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n */MetricsReporting.__dashjs_factory_name='MetricsReporting';var factory=dashjs.FactoryMaker.getClassFactory(MetricsReporting);/* jshint ignore:line */factory.events=_MetricsReportingEvents2.default;dashjs.FactoryMaker.updateClassFactory(MetricsReporting.__dashjs_factory_name,factory);/* jshint ignore:line */exports.default=factory;\n//# sourceMappingURL=MetricsReporting.js.map\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _createClass=function(){function defineProperties(target,props){for(var i=0;i<props.length;i++){var descriptor=props[i];descriptor.enumerable=descriptor.enumerable||false;descriptor.configurable=true;if(\"value\"in descriptor)descriptor.writable=true;Object.defineProperty(target,descriptor.key,descriptor);}}return function(Constructor,protoProps,staticProps){if(protoProps)defineProperties(Constructor.prototype,protoProps);if(staticProps)defineProperties(Constructor,staticProps);return Constructor;};}();function _classCallCheck(instance,Constructor){if(!(instance instanceof Constructor)){throw new TypeError(\"Cannot call a class as a function\");}}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n *//**\n * Protection Constants declaration\n * @class\n * @ignore\n */var ProtectionConstants=function(){_createClass(ProtectionConstants,[{key:'init',value:function init(){this.CLEARKEY_KEYSTEM_STRING='org.w3.clearkey';this.WIDEVINE_KEYSTEM_STRING='com.widevine.alpha';this.PLAYREADY_KEYSTEM_STRING='com.microsoft.playready';}}]);function ProtectionConstants(){_classCallCheck(this,ProtectionConstants);this.init();}return ProtectionConstants;}();var constants=new ProtectionConstants();exports.default=constants;\n//# sourceMappingURL=ProtectionConstants.js.map\n","var anObject = require('../internals/an-object');\nvar defineProperties = require('../internals/object-define-properties');\nvar enumBugKeys = require('../internals/enum-bug-keys');\nvar hiddenKeys = require('../internals/hidden-keys');\nvar html = require('../internals/html');\nvar documentCreateElement = require('../internals/document-create-element');\nvar sharedKey = require('../internals/shared-key');\n\nvar GT = '>';\nvar LT = '<';\nvar PROTOTYPE = 'prototype';\nvar SCRIPT = 'script';\nvar IE_PROTO = sharedKey('IE_PROTO');\n\nvar EmptyConstructor = function () { /* empty */ };\n\nvar scriptTag = function (content) {\n  return LT + SCRIPT + GT + content + LT + '/' + SCRIPT + GT;\n};\n\n// Create object with fake `null` prototype: use ActiveX Object with cleared prototype\nvar NullProtoObjectViaActiveX = function (activeXDocument) {\n  activeXDocument.write(scriptTag(''));\n  activeXDocument.close();\n  var temp = activeXDocument.parentWindow.Object;\n  activeXDocument = null; // avoid memory leak\n  return temp;\n};\n\n// Create object with fake `null` prototype: use iframe Object with cleared prototype\nvar NullProtoObjectViaIFrame = function () {\n  // Thrash, waste and sodomy: IE GC bug\n  var iframe = documentCreateElement('iframe');\n  var JS = 'java' + SCRIPT + ':';\n  var iframeDocument;\n  iframe.style.display = 'none';\n  html.appendChild(iframe);\n  // https://github.com/zloirock/core-js/issues/475\n  iframe.src = String(JS);\n  iframeDocument = iframe.contentWindow.document;\n  iframeDocument.open();\n  iframeDocument.write(scriptTag('document.F=Object'));\n  iframeDocument.close();\n  return iframeDocument.F;\n};\n\n// Check for document.domain and active x support\n// No need to use active x approach when document.domain is not set\n// see https://github.com/es-shims/es5-shim/issues/150\n// variation of https://github.com/kitcambridge/es5-shim/commit/4f738ac066346\n// avoid IE GC bug\nvar activeXDocument;\nvar NullProtoObject = function () {\n  try {\n    /* global ActiveXObject */\n    activeXDocument = document.domain && new ActiveXObject('htmlfile');\n  } catch (error) { /* ignore */ }\n  NullProtoObject = activeXDocument ? NullProtoObjectViaActiveX(activeXDocument) : NullProtoObjectViaIFrame();\n  var length = enumBugKeys.length;\n  while (length--) delete NullProtoObject[PROTOTYPE][enumBugKeys[length]];\n  return NullProtoObject();\n};\n\nhiddenKeys[IE_PROTO] = true;\n\n// `Object.create` method\n// https://tc39.github.io/ecma262/#sec-object.create\nmodule.exports = Object.create || function create(O, Properties) {\n  var result;\n  if (O !== null) {\n    EmptyConstructor[PROTOTYPE] = anObject(O);\n    result = new EmptyConstructor();\n    EmptyConstructor[PROTOTYPE] = null;\n    // add \"__proto__\" for Object.getPrototypeOf polyfill\n    result[IE_PROTO] = O;\n  } else result = NullProtoObject();\n  return Properties === undefined ? result : defineProperties(result, Properties);\n};\n","// Copyright Joyent, Inc. and other Node contributors.\n//\n// Permission is hereby granted, free of charge, to any person obtaining a\n// copy of this software and associated documentation files (the\n// \"Software\"), to deal in the Software without restriction, including\n// without limitation the rights to use, copy, modify, merge, publish,\n// distribute, sublicense, and/or sell copies of the Software, and to permit\n// persons to whom the Software is furnished to do so, subject to the\n// following conditions:\n//\n// The above copyright notice and this permission notice shall be included\n// in all copies or substantial portions of the Software.\n//\n// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS\n// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF\n// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN\n// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,\n// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR\n// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE\n// USE OR OTHER DEALINGS IN THE SOFTWARE.\n\n'use strict';\n\n/*<replacement>*/\n\nvar Buffer = require('safe-buffer').Buffer;\n/*</replacement>*/\n\nvar isEncoding = Buffer.isEncoding || function (encoding) {\n  encoding = '' + encoding;\n  switch (encoding && encoding.toLowerCase()) {\n    case 'hex':case 'utf8':case 'utf-8':case 'ascii':case 'binary':case 'base64':case 'ucs2':case 'ucs-2':case 'utf16le':case 'utf-16le':case 'raw':\n      return true;\n    default:\n      return false;\n  }\n};\n\nfunction _normalizeEncoding(enc) {\n  if (!enc) return 'utf8';\n  var retried;\n  while (true) {\n    switch (enc) {\n      case 'utf8':\n      case 'utf-8':\n        return 'utf8';\n      case 'ucs2':\n      case 'ucs-2':\n      case 'utf16le':\n      case 'utf-16le':\n        return 'utf16le';\n      case 'latin1':\n      case 'binary':\n        return 'latin1';\n      case 'base64':\n      case 'ascii':\n      case 'hex':\n        return enc;\n      default:\n        if (retried) return; // undefined\n        enc = ('' + enc).toLowerCase();\n        retried = true;\n    }\n  }\n};\n\n// Do not cache `Buffer.isEncoding` when checking encoding names as some\n// modules monkey-patch it to support additional encodings\nfunction normalizeEncoding(enc) {\n  var nenc = _normalizeEncoding(enc);\n  if (typeof nenc !== 'string' && (Buffer.isEncoding === isEncoding || !isEncoding(enc))) throw new Error('Unknown encoding: ' + enc);\n  return nenc || enc;\n}\n\n// StringDecoder provides an interface for efficiently splitting a series of\n// buffers into a series of JS strings without breaking apart multi-byte\n// characters.\nexports.StringDecoder = StringDecoder;\nfunction StringDecoder(encoding) {\n  this.encoding = normalizeEncoding(encoding);\n  var nb;\n  switch (this.encoding) {\n    case 'utf16le':\n      this.text = utf16Text;\n      this.end = utf16End;\n      nb = 4;\n      break;\n    case 'utf8':\n      this.fillLast = utf8FillLast;\n      nb = 4;\n      break;\n    case 'base64':\n      this.text = base64Text;\n      this.end = base64End;\n      nb = 3;\n      break;\n    default:\n      this.write = simpleWrite;\n      this.end = simpleEnd;\n      return;\n  }\n  this.lastNeed = 0;\n  this.lastTotal = 0;\n  this.lastChar = Buffer.allocUnsafe(nb);\n}\n\nStringDecoder.prototype.write = function (buf) {\n  if (buf.length === 0) return '';\n  var r;\n  var i;\n  if (this.lastNeed) {\n    r = this.fillLast(buf);\n    if (r === undefined) return '';\n    i = this.lastNeed;\n    this.lastNeed = 0;\n  } else {\n    i = 0;\n  }\n  if (i < buf.length) return r ? r + this.text(buf, i) : this.text(buf, i);\n  return r || '';\n};\n\nStringDecoder.prototype.end = utf8End;\n\n// Returns only complete characters in a Buffer\nStringDecoder.prototype.text = utf8Text;\n\n// Attempts to complete a partial non-UTF-8 character using bytes from a Buffer\nStringDecoder.prototype.fillLast = function (buf) {\n  if (this.lastNeed <= buf.length) {\n    buf.copy(this.lastChar, this.lastTotal - this.lastNeed, 0, this.lastNeed);\n    return this.lastChar.toString(this.encoding, 0, this.lastTotal);\n  }\n  buf.copy(this.lastChar, this.lastTotal - this.lastNeed, 0, buf.length);\n  this.lastNeed -= buf.length;\n};\n\n// Checks the type of a UTF-8 byte, whether it's ASCII, a leading byte, or a\n// continuation byte. If an invalid byte is detected, -2 is returned.\nfunction utf8CheckByte(byte) {\n  if (byte <= 0x7F) return 0;else if (byte >> 5 === 0x06) return 2;else if (byte >> 4 === 0x0E) return 3;else if (byte >> 3 === 0x1E) return 4;\n  return byte >> 6 === 0x02 ? -1 : -2;\n}\n\n// Checks at most 3 bytes at the end of a Buffer in order to detect an\n// incomplete multi-byte UTF-8 character. The total number of bytes (2, 3, or 4)\n// needed to complete the UTF-8 character (if applicable) are returned.\nfunction utf8CheckIncomplete(self, buf, i) {\n  var j = buf.length - 1;\n  if (j < i) return 0;\n  var nb = utf8CheckByte(buf[j]);\n  if (nb >= 0) {\n    if (nb > 0) self.lastNeed = nb - 1;\n    return nb;\n  }\n  if (--j < i || nb === -2) return 0;\n  nb = utf8CheckByte(buf[j]);\n  if (nb >= 0) {\n    if (nb > 0) self.lastNeed = nb - 2;\n    return nb;\n  }\n  if (--j < i || nb === -2) return 0;\n  nb = utf8CheckByte(buf[j]);\n  if (nb >= 0) {\n    if (nb > 0) {\n      if (nb === 2) nb = 0;else self.lastNeed = nb - 3;\n    }\n    return nb;\n  }\n  return 0;\n}\n\n// Validates as many continuation bytes for a multi-byte UTF-8 character as\n// needed or are available. If we see a non-continuation byte where we expect\n// one, we \"replace\" the validated continuation bytes we've seen so far with\n// a single UTF-8 replacement character ('\\ufffd'), to match v8's UTF-8 decoding\n// behavior. The continuation byte check is included three times in the case\n// where all of the continuation bytes for a character exist in the same buffer.\n// It is also done this way as a slight performance increase instead of using a\n// loop.\nfunction utf8CheckExtraBytes(self, buf, p) {\n  if ((buf[0] & 0xC0) !== 0x80) {\n    self.lastNeed = 0;\n    return '\\ufffd';\n  }\n  if (self.lastNeed > 1 && buf.length > 1) {\n    if ((buf[1] & 0xC0) !== 0x80) {\n      self.lastNeed = 1;\n      return '\\ufffd';\n    }\n    if (self.lastNeed > 2 && buf.length > 2) {\n      if ((buf[2] & 0xC0) !== 0x80) {\n        self.lastNeed = 2;\n        return '\\ufffd';\n      }\n    }\n  }\n}\n\n// Attempts to complete a multi-byte UTF-8 character using bytes from a Buffer.\nfunction utf8FillLast(buf) {\n  var p = this.lastTotal - this.lastNeed;\n  var r = utf8CheckExtraBytes(this, buf, p);\n  if (r !== undefined) return r;\n  if (this.lastNeed <= buf.length) {\n    buf.copy(this.lastChar, p, 0, this.lastNeed);\n    return this.lastChar.toString(this.encoding, 0, this.lastTotal);\n  }\n  buf.copy(this.lastChar, p, 0, buf.length);\n  this.lastNeed -= buf.length;\n}\n\n// Returns all complete UTF-8 characters in a Buffer. If the Buffer ended on a\n// partial character, the character's bytes are buffered until the required\n// number of bytes are available.\nfunction utf8Text(buf, i) {\n  var total = utf8CheckIncomplete(this, buf, i);\n  if (!this.lastNeed) return buf.toString('utf8', i);\n  this.lastTotal = total;\n  var end = buf.length - (total - this.lastNeed);\n  buf.copy(this.lastChar, 0, end);\n  return buf.toString('utf8', i, end);\n}\n\n// For UTF-8, a replacement character is added when ending on a partial\n// character.\nfunction utf8End(buf) {\n  var r = buf && buf.length ? this.write(buf) : '';\n  if (this.lastNeed) return r + '\\ufffd';\n  return r;\n}\n\n// UTF-16LE typically needs two bytes per character, but even if we have an even\n// number of bytes available, we need to check if we end on a leading/high\n// surrogate. In that case, we need to wait for the next two bytes in order to\n// decode the last character properly.\nfunction utf16Text(buf, i) {\n  if ((buf.length - i) % 2 === 0) {\n    var r = buf.toString('utf16le', i);\n    if (r) {\n      var c = r.charCodeAt(r.length - 1);\n      if (c >= 0xD800 && c <= 0xDBFF) {\n        this.lastNeed = 2;\n        this.lastTotal = 4;\n        this.lastChar[0] = buf[buf.length - 2];\n        this.lastChar[1] = buf[buf.length - 1];\n        return r.slice(0, -1);\n      }\n    }\n    return r;\n  }\n  this.lastNeed = 1;\n  this.lastTotal = 2;\n  this.lastChar[0] = buf[buf.length - 1];\n  return buf.toString('utf16le', i, buf.length - 1);\n}\n\n// For UTF-16LE we do not explicitly append special replacement characters if we\n// end on a partial character, we simply let v8 handle that.\nfunction utf16End(buf) {\n  var r = buf && buf.length ? this.write(buf) : '';\n  if (this.lastNeed) {\n    var end = this.lastTotal - this.lastNeed;\n    return r + this.lastChar.toString('utf16le', 0, end);\n  }\n  return r;\n}\n\nfunction base64Text(buf, i) {\n  var n = (buf.length - i) % 3;\n  if (n === 0) return buf.toString('base64', i);\n  this.lastNeed = 3 - n;\n  this.lastTotal = 3;\n  if (n === 1) {\n    this.lastChar[0] = buf[buf.length - 1];\n  } else {\n    this.lastChar[0] = buf[buf.length - 2];\n    this.lastChar[1] = buf[buf.length - 1];\n  }\n  return buf.toString('base64', i, buf.length - n);\n}\n\nfunction base64End(buf) {\n  var r = buf && buf.length ? this.write(buf) : '';\n  if (this.lastNeed) return r + this.lastChar.toString('base64', 0, 3 - this.lastNeed);\n  return r;\n}\n\n// Pass bytes on through for single-byte encodings (e.g. ascii, latin1, hex)\nfunction simpleWrite(buf) {\n  return buf.toString(this.encoding);\n}\n\nfunction simpleEnd(buf) {\n  return buf && buf.length ? this.write(buf) : '';\n}","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _DVBErrors=require('../vo/DVBErrors');var _DVBErrors2=_interopRequireDefault(_DVBErrors);var _MetricsReportingEvents=require('../MetricsReportingEvents');var _MetricsReportingEvents2=_interopRequireDefault(_MetricsReportingEvents);function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n */function DVBErrorsTranslator(config){config=config||{};var instance=void 0,mpd=void 0;var eventBus=config.eventBus;var dashMetrics=config.dashMetrics;var metricsConstants=config.metricsConstants;//MediaPlayerEvents have been added to Events in MediaPlayer class\nvar Events=config.events;function report(vo){var o=new _DVBErrors2.default();if(!mpd){return;}for(var key in vo){if(vo.hasOwnProperty(key)){o[key]=vo[key];}}if(!o.mpdurl){o.mpdurl=mpd.originalUrl||mpd.url;}if(!o.terror){o.terror=new Date();}dashMetrics.addDVBErrors(o);}function onManifestUpdate(e){if(e.error){return;}mpd=e.manifest;}function onServiceLocationChanged(e){report({errorcode:_DVBErrors2.default.BASE_URL_CHANGED,servicelocation:e.entry});}function onBecameReporter(){report({errorcode:_DVBErrors2.default.BECAME_REPORTER});}function handleHttpMetric(vo){if(vo.responsecode===0||// connection failure - unknown\nvo.responsecode>=400||// HTTP error status code\nvo.responsecode<100||// unknown status codes\nvo.responsecode>=600){// unknown status codes\nreport({errorcode:vo.responsecode||_DVBErrors2.default.CONNECTION_ERROR,url:vo.url,terror:vo.tresponse,servicelocation:vo._serviceLocation});}}function onMetricEvent(e){switch(e.metric){case metricsConstants.HTTP_REQUEST:handleHttpMetric(e.value);break;default:break;}}function onPlaybackError(e){var reason=e.error?e.error.code:0;var errorcode=void 0;switch(reason){case MediaError.MEDIA_ERR_NETWORK:errorcode=_DVBErrors2.default.CONNECTION_ERROR;break;case MediaError.MEDIA_ERR_DECODE:errorcode=_DVBErrors2.default.CORRUPT_MEDIA_OTHER;break;default:return;}report({errorcode:errorcode});}function initialise(){eventBus.on(Events.MANIFEST_UPDATED,onManifestUpdate,instance);eventBus.on(Events.SERVICE_LOCATION_BLACKLIST_CHANGED,onServiceLocationChanged,instance);eventBus.on(Events.METRIC_ADDED,onMetricEvent,instance);eventBus.on(Events.METRIC_UPDATED,onMetricEvent,instance);eventBus.on(Events.PLAYBACK_ERROR,onPlaybackError,instance);eventBus.on(_MetricsReportingEvents2.default.BECAME_REPORTING_PLAYER,onBecameReporter,instance);}function reset(){eventBus.off(Events.MANIFEST_UPDATED,onManifestUpdate,instance);eventBus.off(Events.SERVICE_LOCATION_BLACKLIST_CHANGED,onServiceLocationChanged,instance);eventBus.off(Events.METRIC_ADDED,onMetricEvent,instance);eventBus.off(Events.METRIC_UPDATED,onMetricEvent,instance);eventBus.off(Events.PLAYBACK_ERROR,onPlaybackError,instance);eventBus.off(_MetricsReportingEvents2.default.BECAME_REPORTING_PLAYER,onBecameReporter,instance);}instance={initialise:initialise,reset:reset};initialise();return instance;}DVBErrorsTranslator.__dashjs_factory_name='DVBErrorsTranslator';exports.default=dashjs.FactoryMaker.getSingletonFactory(DVBErrorsTranslator);/* jshint ignore:line */\n//# sourceMappingURL=DVBErrorsTranslator.js.map\n","'use strict';\nvar $ = require('../internals/export');\nvar createIteratorConstructor = require('../internals/create-iterator-constructor');\nvar getPrototypeOf = require('../internals/object-get-prototype-of');\nvar setPrototypeOf = require('../internals/object-set-prototype-of');\nvar setToStringTag = require('../internals/set-to-string-tag');\nvar createNonEnumerableProperty = require('../internals/create-non-enumerable-property');\nvar redefine = require('../internals/redefine');\nvar wellKnownSymbol = require('../internals/well-known-symbol');\nvar IS_PURE = require('../internals/is-pure');\nvar Iterators = require('../internals/iterators');\nvar IteratorsCore = require('../internals/iterators-core');\n\nvar IteratorPrototype = IteratorsCore.IteratorPrototype;\nvar BUGGY_SAFARI_ITERATORS = IteratorsCore.BUGGY_SAFARI_ITERATORS;\nvar ITERATOR = wellKnownSymbol('iterator');\nvar KEYS = 'keys';\nvar VALUES = 'values';\nvar ENTRIES = 'entries';\n\nvar returnThis = function () { return this; };\n\nmodule.exports = function (Iterable, NAME, IteratorConstructor, next, DEFAULT, IS_SET, FORCED) {\n  createIteratorConstructor(IteratorConstructor, NAME, next);\n\n  var getIterationMethod = function (KIND) {\n    if (KIND === DEFAULT && defaultIterator) return defaultIterator;\n    if (!BUGGY_SAFARI_ITERATORS && KIND in IterablePrototype) return IterablePrototype[KIND];\n    switch (KIND) {\n      case KEYS: return function keys() { return new IteratorConstructor(this, KIND); };\n      case VALUES: return function values() { return new IteratorConstructor(this, KIND); };\n      case ENTRIES: return function entries() { return new IteratorConstructor(this, KIND); };\n    } return function () { return new IteratorConstructor(this); };\n  };\n\n  var TO_STRING_TAG = NAME + ' Iterator';\n  var INCORRECT_VALUES_NAME = false;\n  var IterablePrototype = Iterable.prototype;\n  var nativeIterator = IterablePrototype[ITERATOR]\n    || IterablePrototype['@@iterator']\n    || DEFAULT && IterablePrototype[DEFAULT];\n  var defaultIterator = !BUGGY_SAFARI_ITERATORS && nativeIterator || getIterationMethod(DEFAULT);\n  var anyNativeIterator = NAME == 'Array' ? IterablePrototype.entries || nativeIterator : nativeIterator;\n  var CurrentIteratorPrototype, methods, KEY;\n\n  // fix native\n  if (anyNativeIterator) {\n    CurrentIteratorPrototype = getPrototypeOf(anyNativeIterator.call(new Iterable()));\n    if (IteratorPrototype !== Object.prototype && CurrentIteratorPrototype.next) {\n      if (!IS_PURE && getPrototypeOf(CurrentIteratorPrototype) !== IteratorPrototype) {\n        if (setPrototypeOf) {\n          setPrototypeOf(CurrentIteratorPrototype, IteratorPrototype);\n        } else if (typeof CurrentIteratorPrototype[ITERATOR] != 'function') {\n          createNonEnumerableProperty(CurrentIteratorPrototype, ITERATOR, returnThis);\n        }\n      }\n      // Set @@toStringTag to native iterators\n      setToStringTag(CurrentIteratorPrototype, TO_STRING_TAG, true, true);\n      if (IS_PURE) Iterators[TO_STRING_TAG] = returnThis;\n    }\n  }\n\n  // fix Array#{values, @@iterator}.name in V8 / FF\n  if (DEFAULT == VALUES && nativeIterator && nativeIterator.name !== VALUES) {\n    INCORRECT_VALUES_NAME = true;\n    defaultIterator = function values() { return nativeIterator.call(this); };\n  }\n\n  // define iterator\n  if ((!IS_PURE || FORCED) && IterablePrototype[ITERATOR] !== defaultIterator) {\n    createNonEnumerableProperty(IterablePrototype, ITERATOR, defaultIterator);\n  }\n  Iterators[NAME] = defaultIterator;\n\n  // export additional methods\n  if (DEFAULT) {\n    methods = {\n      values: getIterationMethod(VALUES),\n      keys: IS_SET ? defaultIterator : getIterationMethod(KEYS),\n      entries: getIterationMethod(ENTRIES)\n    };\n    if (FORCED) for (KEY in methods) {\n      if (BUGGY_SAFARI_ITERATORS || INCORRECT_VALUES_NAME || !(KEY in IterablePrototype)) {\n        redefine(IterablePrototype, KEY, methods[KEY]);\n      }\n    } else $({ target: NAME, proto: true, forced: BUGGY_SAFARI_ITERATORS || INCORRECT_VALUES_NAME }, methods);\n  }\n\n  return methods;\n};\n","var global = require('../internals/global');\nvar inspectSource = require('../internals/inspect-source');\n\nvar WeakMap = global.WeakMap;\n\nmodule.exports = typeof WeakMap === 'function' && /native code/.test(inspectSource(WeakMap));\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _FragmentRequest=require('../streaming/vo/FragmentRequest');var _FragmentRequest2=_interopRequireDefault(_FragmentRequest);var _HTTPRequest=require('../streaming/vo/metrics/HTTPRequest');var _FactoryMaker=require('../core/FactoryMaker');var _FactoryMaker2=_interopRequireDefault(_FactoryMaker);var _SegmentsUtils=require('./utils/SegmentsUtils');var _SegmentsController=require('./controllers/SegmentsController');var _SegmentsController2=_interopRequireDefault(_SegmentsController);function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}function DashHandler(config){config=config||{};var context=this.context;var eventBus=config.eventBus;var events=config.events;var debug=config.debug;var dashConstants=config.dashConstants;var urlUtils=config.urlUtils;var type=config.type;var streamInfo=config.streamInfo;var timelineConverter=config.timelineConverter;var dashMetrics=config.dashMetrics;var baseURLController=config.baseURLController;var instance=void 0,logger=void 0,segmentIndex=void 0,lastSegment=void 0,requestedTime=void 0,currentTime=void 0,isDynamicManifest=void 0,selectedMimeType=void 0,segmentsController=void 0;function setup(){logger=debug.getLogger(instance);resetInitialSettings();segmentsController=(0,_SegmentsController2.default)(context).create(config);eventBus.on(events.INITIALIZATION_LOADED,onInitializationLoaded,instance);eventBus.on(events.SEGMENTS_LOADED,onSegmentsLoaded,instance);eventBus.on(events.REPRESENTATION_UPDATE_STARTED,onRepresentationUpdateStarted,instance);}function initialize(isDynamic){isDynamicManifest=isDynamic;segmentsController.initialize(isDynamic);}function getType(){return type;}function getStreamInfo(){return streamInfo;}function setCurrentTime(value){currentTime=value;}function getCurrentTime(){return currentTime;}function setCurrentIndex(value){segmentIndex=value;}function getCurrentIndex(){return segmentIndex;}function resetIndex(){segmentIndex=-1;lastSegment=null;}function resetInitialSettings(){resetIndex();currentTime=0;requestedTime=null;segmentsController=null;selectedMimeType=null;}function reset(){resetInitialSettings();eventBus.off(events.INITIALIZATION_LOADED,onInitializationLoaded,instance);eventBus.off(events.SEGMENTS_LOADED,onSegmentsLoaded,instance);eventBus.off(events.REPRESENTATION_UPDATE_STARTED,onRepresentationUpdateStarted,instance);}function setRequestUrl(request,destination,representation){var baseURL=baseURLController.resolve(representation.path);var url=void 0,serviceLocation=void 0;if(!baseURL||destination===baseURL.url||!urlUtils.isRelative(destination)){url=destination;}else{url=baseURL.url;serviceLocation=baseURL.serviceLocation;if(destination){url=urlUtils.resolve(destination,url);}}if(urlUtils.isRelative(url)){return false;}request.url=url;request.serviceLocation=serviceLocation;return true;}function generateInitRequest(mediaInfo,representation,mediaType){var request=new _FragmentRequest2.default();var period=representation.adaptation.period;var presentationStartTime=period.start;request.mediaType=mediaType;request.type=_HTTPRequest.HTTPRequest.INIT_SEGMENT_TYPE;request.range=representation.range;request.availabilityStartTime=timelineConverter.calcAvailabilityStartTimeFromPresentationTime(presentationStartTime,period.mpd,isDynamicManifest);request.availabilityEndTime=timelineConverter.calcAvailabilityEndTimeFromPresentationTime(presentationStartTime+period.duration,period.mpd,isDynamicManifest);request.quality=representation.index;request.mediaInfo=mediaInfo;request.representationId=representation.id;if(setRequestUrl(request,representation.initialization,representation)){request.url=(0,_SegmentsUtils.replaceTokenForTemplate)(request.url,'Bandwidth',representation.bandwidth);return request;}}function getInitRequest(mediaInfo,representation){if(!representation)return null;var request=generateInitRequest(mediaInfo,representation,getType());return request;}function setMimeType(newMimeType){selectedMimeType=newMimeType;}function setExpectedLiveEdge(liveEdge){timelineConverter.setExpectedLiveEdge(liveEdge);dashMetrics.updateManifestUpdateInfo({presentationStartTime:liveEdge});}function onRepresentationUpdateStarted(eventObj){if(eventObj.sender.getType()!==getType())return;processRepresentation(eventObj.representation);}function processRepresentation(voRepresentation){var hasInitialization=voRepresentation.hasInitialization();var hasSegments=voRepresentation.hasSegments();//if representation has initialization and segments information, REPRESENTATION_UPDATE_COMPLETED can be triggered immediately\n//otherwise, it means that a request has to be made to get initialization and/or segments informations\nif(hasInitialization&&hasSegments){eventBus.trigger(events.REPRESENTATION_UPDATE_COMPLETED,{sender:instance,representation:voRepresentation});}else{segmentsController.update(voRepresentation,getType(),selectedMimeType,hasInitialization,hasSegments);}}function getRequestForSegment(mediaInfo,segment){if(segment===null||segment===undefined){return null;}var request=new _FragmentRequest2.default();var representation=segment.representation;var bandwidth=representation.adaptation.period.mpd.manifest.Period_asArray[representation.adaptation.period.index].AdaptationSet_asArray[representation.adaptation.index].Representation_asArray[representation.index].bandwidth;var url=segment.media;url=(0,_SegmentsUtils.replaceTokenForTemplate)(url,'Number',segment.replacementNumber);url=(0,_SegmentsUtils.replaceTokenForTemplate)(url,'Time',segment.replacementTime);url=(0,_SegmentsUtils.replaceTokenForTemplate)(url,'Bandwidth',bandwidth);url=(0,_SegmentsUtils.replaceIDForTemplate)(url,representation.id);url=(0,_SegmentsUtils.unescapeDollarsInTemplate)(url);request.mediaType=getType();request.type=_HTTPRequest.HTTPRequest.MEDIA_SEGMENT_TYPE;request.range=segment.mediaRange;request.startTime=segment.presentationStartTime;request.duration=segment.duration;request.timescale=representation.timescale;request.availabilityStartTime=segment.availabilityStartTime;request.availabilityEndTime=segment.availabilityEndTime;request.wallStartTime=segment.wallStartTime;request.quality=representation.index;request.index=segment.availabilityIdx;request.mediaInfo=mediaInfo;request.adaptationIndex=representation.adaptation.index;request.representationId=representation.id;if(setRequestUrl(request,url,representation)){return request;}}function isMediaFinished(representation){var isFinished=false;if(!representation)return isFinished;if(!isDynamicManifest){if(segmentIndex>=representation.availableSegmentsNumber){isFinished=true;}}else{if(lastSegment){var time=parseFloat((lastSegment.presentationStartTime-representation.adaptation.period.start).toFixed(5));var endTime=lastSegment.duration>0?time+1.5*lastSegment.duration:time;var duration=representation.adaptation.period.duration;isFinished=endTime>=duration;}}return isFinished;}function getSegmentRequestForTime(mediaInfo,representation,time,options){var request=null;if(!representation||!representation.segmentInfoType){return request;}var idx=segmentIndex;var keepIdx=options?options.keepIdx:false;var ignoreIsFinished=options&&options.ignoreIsFinished?true:false;if(requestedTime!==time){// When playing at live edge with 0 delay we may loop back with same time and index until it is available. Reduces verboseness of logs.\nrequestedTime=time;logger.debug('Getting the request for time : '+time);}var segment=segmentsController.getSegmentByTime(representation,time);if(segment){segmentIndex=segment.availabilityIdx;lastSegment=segment;logger.debug('Index for time '+time+' is '+segmentIndex);request=getRequestForSegment(mediaInfo,segment);}else{var finished=!ignoreIsFinished?isMediaFinished(representation):false;if(finished){request=new _FragmentRequest2.default();request.action=_FragmentRequest2.default.ACTION_COMPLETE;request.index=segmentIndex-1;request.mediaType=type;request.mediaInfo=mediaInfo;logger.debug('Signal complete in getSegmentRequestForTime');}}if(keepIdx&&idx>=0){segmentIndex=representation.segmentInfoType===dashConstants.SEGMENT_TIMELINE&&isDynamicManifest?segmentIndex:idx;}return request;}function getNextSegmentRequest(mediaInfo,representation){var request=null;if(!representation||!representation.segmentInfoType){return null;}requestedTime=null;var indexToRequest=segmentIndex+1;logger.debug('Getting the next request at index: '+indexToRequest);// check that there is a segment in this index\nvar segment=segmentsController.getSegmentByIndex(representation,indexToRequest,lastSegment?lastSegment.mediaStartTime:-1);if(!segment&&isEndlessMedia(representation)){logger.debug('No segment found at index: '+indexToRequest+'. Wait for next loop');return null;}else{if(segment){request=getRequestForSegment(mediaInfo,segment);segmentIndex=segment.availabilityIdx;}else{if(isDynamicManifest){segmentIndex=indexToRequest-1;}else{segmentIndex=indexToRequest;}}}if(segment){lastSegment=segment;}else{var finished=isMediaFinished(representation,segment);if(finished){request=new _FragmentRequest2.default();request.action=_FragmentRequest2.default.ACTION_COMPLETE;request.index=segmentIndex-1;request.mediaType=getType();request.mediaInfo=mediaInfo;logger.debug('Signal complete');}}return request;}function isEndlessMedia(representation){return!isFinite(representation.adaptation.period.duration);}function onInitializationLoaded(e){var representation=e.representation;if(!representation.segments)return;eventBus.trigger(events.REPRESENTATION_UPDATE_COMPLETED,{sender:this,representation:representation});}function onSegmentsLoaded(e){if(e.error||getType()!==e.mediaType)return;var fragments=e.segments;var representation=e.representation;var segments=[];var count=0;var i=void 0,len=void 0,s=void 0,seg=void 0;for(i=0,len=fragments?fragments.length:0;i<len;i++){s=fragments[i];seg=(0,_SegmentsUtils.getTimeBasedSegment)(timelineConverter,isDynamicManifest,representation,s.startTime,s.duration,s.timescale,s.media,s.mediaRange,count);if(seg){segments.push(seg);seg=null;count++;}}if(segments.length>0){representation.segmentAvailabilityRange={start:segments[0].presentationStartTime,end:segments[segments.length-1].presentationStartTime};representation.availableSegmentsNumber=segments.length;representation.segments=segments;if(isDynamicManifest){var _lastSegment=segments[segments.length-1];var liveEdge=_lastSegment.presentationStartTime-8;// the last segment is the Expected, not calculated, live edge.\nsetExpectedLiveEdge(liveEdge);}}if(!representation.hasInitialization()){return;}eventBus.trigger(events.REPRESENTATION_UPDATE_COMPLETED,{sender:this,representation:representation});}instance={initialize:initialize,getType:getType,//need to be public in order to be used by logger\ngetStreamInfo:getStreamInfo,getInitRequest:getInitRequest,getRequestForSegment:getRequestForSegment,getSegmentRequestForTime:getSegmentRequestForTime,getNextSegmentRequest:getNextSegmentRequest,setCurrentTime:setCurrentTime,getCurrentTime:getCurrentTime,setCurrentIndex:setCurrentIndex,getCurrentIndex:getCurrentIndex,isMediaFinished:isMediaFinished,reset:reset,resetIndex:resetIndex,setMimeType:setMimeType};setup();return instance;}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n */DashHandler.__dashjs_factory_name='DashHandler';exports.default=_FactoryMaker2.default.getClassFactory(DashHandler);\n//# sourceMappingURL=DashHandler.js.map\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _FactoryMaker=require('../../core/FactoryMaker');var _FactoryMaker2=_interopRequireDefault(_FactoryMaker);function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}/**\n * Creates an instance of an EBMLParser class which implements a large subset\n * of the functionality required to parse Matroska EBML\n *\n * @param {Object} config object with data member which is the buffer to parse\n * @ignore\n */function EBMLParser(config){config=config||{};var instance=void 0;var data=new DataView(config.data);var pos=0;function getPos(){return pos;}function setPos(value){pos=value;}/**\n     * Consumes an EBML tag from the data stream.\n     *\n     * @param {Object} tag to parse, A tag is an object with at least a {number} tag and\n     * {boolean} required flag.\n     * @param {boolean} test whether or not the function should throw if a required\n     * tag is not found\n     * @return {boolean} whether or not the tag was found\n     * @throws will throw an exception if a required tag is not found and test\n     * param is false or undefined, or if the stream is malformed.\n     * @memberof EBMLParser\n     */function consumeTag(tag,test){var found=true;var bytesConsumed=0;var p1=void 0,p2=void 0;if(test===undefined){test=false;}if(tag.tag>0xFFFFFF){if(data.getUint32(pos)!==tag.tag){found=false;}bytesConsumed=4;}else if(tag.tag>0xFFFF){// 3 bytes\np1=data.getUint16(pos);p2=data.getUint8(pos+2);// shift p1 over a byte and add p2\nif(p1*256+p2!==tag.tag){found=false;}bytesConsumed=3;}else if(tag.tag>0xFF){if(data.getUint16(pos)!==tag.tag){found=false;}bytesConsumed=2;}else{if(data.getUint8(pos)!==tag.tag){found=false;}bytesConsumed=1;}if(!found&&tag.required&&!test){throw new Error('required tag not found');}if(found){pos+=bytesConsumed;}return found;}/**\n     * Consumes an EBML tag from the data stream.   If the tag is found then this\n     * function will also remove the size field which follows the tag from the\n     * data stream.\n     *\n     * @param {Object} tag to parse, A tag is an object with at least a {number} tag and\n     * {boolean} required flag.\n     * @param {boolean} test whether or not the function should throw if a required\n     * tag is not found\n     * @return {boolean} whether or not the tag was found\n     * @throws will throw an exception if a required tag is not found and test\n     * param is false or undefined, or if the stream is malformedata.\n     * @memberof EBMLParser\n     */function consumeTagAndSize(tag,test){var found=consumeTag(tag,test);if(found){getMatroskaCodedNum();}return found;}/**\n     * Consumes an EBML tag from the data stream.   If the tag is found then this\n     * function will also remove the size field which follows the tag from the\n     * data stream.  It will use the value of the size field to parse a binary\n     * field, using a parser defined in the tag itself\n     *\n     * @param {Object} tag to parse, A tag is an object with at least a {number} tag,\n     * {boolean} required flag, and a parse function which takes a size parameter\n     * @return {boolean} whether or not the tag was found\n     * @throws will throw an exception if a required tag is not found,\n     * or if the stream is malformed\n     * @memberof EBMLParser\n     */function parseTag(tag){var size=void 0;consumeTag(tag);size=getMatroskaCodedNum();return instance[tag.parse](size);}/**\n     * Consumes an EBML tag from the data stream.   If the tag is found then this\n     * function will also remove the size field which follows the tag from the\n     * data stream.  It will use the value of the size field to skip over the\n     * entire section of EBML encapsulated by the tag.\n     *\n     * @param {Object} tag to parse, A tag is an object with at least a {number} tag, and\n     * {boolean} required flag\n     * @param {boolean} test a flag to indicate if an exception should be thrown\n     * if a required tag is not found\n     * @return {boolean} whether or not the tag was found\n     * @throws will throw an exception if a required tag is not found and test is\n     * false or undefined or if the stream is malformed\n     * @memberof EBMLParser\n     */function skipOverElement(tag,test){var found=consumeTag(tag,test);var headerSize=void 0;if(found){headerSize=getMatroskaCodedNum();pos+=headerSize;}return found;}/**\n     * Returns and consumes a number encoded according to the Matroska EBML\n     * specification from the bitstream.\n     *\n     * @param {boolean} retainMSB whether or not to retain the Most Significant Bit (the\n     * first 1). this is usually true when reading Tag IDs.\n     * @return {number} the decoded number\n     * @throws will throw an exception if the bit stream is malformed or there is\n     * not enough data\n     * @memberof EBMLParser\n     */function getMatroskaCodedNum(retainMSB){var bytesUsed=1;var mask=0x80;var maxBytes=8;var extraBytes=-1;var num=0;var ch=data.getUint8(pos);var i=0;for(i=0;i<maxBytes;i+=1){if((ch&mask)===mask){num=retainMSB===undefined?ch&~mask:ch;extraBytes=i;break;}mask>>=1;}for(i=0;i<extraBytes;i+=1,bytesUsed+=1){num=num<<8|0xff&data.getUint8(pos+bytesUsed);}pos+=bytesUsed;return num;}/**\n     * Returns and consumes a float from the bitstream.\n     *\n     * @param {number} size 4 or 8 byte floats are supported\n     * @return {number} the decoded number\n     * @throws will throw an exception if the bit stream is malformed or there is\n     * not enough data\n     * @memberof EBMLParser\n     */function getMatroskaFloat(size){var outFloat=void 0;switch(size){case 4:outFloat=data.getFloat32(pos);pos+=4;break;case 8:outFloat=data.getFloat64(pos);pos+=8;break;}return outFloat;}/**\n     * Consumes and returns an unsigned int from the bitstream.\n     *\n     * @param {number} size 1 to 8 bytes\n     * @return {number} the decoded number\n     * @throws will throw an exception if the bit stream is malformed or there is\n     * not enough data\n     * @memberof EBMLParser\n     */function getMatroskaUint(size){var val=0;for(var i=0;i<size;i+=1){val<<=8;val|=data.getUint8(pos+i)&0xff;}pos+=size;return val;}/**\n     * Tests whether there is more data in the bitstream for parsing\n     *\n     * @return {boolean} whether there is more data to parse\n     * @memberof EBMLParser\n     */function moreData(){return pos<data.byteLength;}instance={getPos:getPos,setPos:setPos,consumeTag:consumeTag,consumeTagAndSize:consumeTagAndSize,parseTag:parseTag,skipOverElement:skipOverElement,getMatroskaCodedNum:getMatroskaCodedNum,getMatroskaFloat:getMatroskaFloat,getMatroskaUint:getMatroskaUint,moreData:moreData};return instance;}EBMLParser.__dashjs_factory_name='EBMLParser';exports.default=_FactoryMaker2.default.getClassFactory(EBMLParser);\n//# sourceMappingURL=EBMLParser.js.map\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _EventsBase2=require('./EventsBase');var _EventsBase3=_interopRequireDefault(_EventsBase2);function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}function _classCallCheck(instance,Constructor){if(!(instance instanceof Constructor)){throw new TypeError(\"Cannot call a class as a function\");}}function _possibleConstructorReturn(self,call){if(!self){throw new ReferenceError(\"this hasn't been initialised - super() hasn't been called\");}return call&&(typeof call===\"object\"||typeof call===\"function\")?call:self;}function _inherits(subClass,superClass){if(typeof superClass!==\"function\"&&superClass!==null){throw new TypeError(\"Super expression must either be null or a function, not \"+typeof superClass);}subClass.prototype=Object.create(superClass&&superClass.prototype,{constructor:{value:subClass,enumerable:false,writable:true,configurable:true}});if(superClass)Object.setPrototypeOf?Object.setPrototypeOf(subClass,superClass):subClass.__proto__=superClass;}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n *//**\n * These are internal events that should not be needed at the player level.\n * If you find and event in here that you would like access to from MediaPlayer level\n * please add an issue at https://github.com/Dash-Industry-Forum/dash.js/issues/new\n * @class\n * @ignore\n */var CoreEvents=function(_EventsBase){_inherits(CoreEvents,_EventsBase);function CoreEvents(){_classCallCheck(this,CoreEvents);var _this=_possibleConstructorReturn(this,(CoreEvents.__proto__||Object.getPrototypeOf(CoreEvents)).call(this));_this.BUFFERING_COMPLETED='bufferingCompleted';_this.BUFFER_CLEARED='bufferCleared';_this.BUFFER_LEVEL_UPDATED='bufferLevelUpdated';_this.BYTES_APPENDED='bytesAppended';_this.BYTES_APPENDED_END_FRAGMENT='bytesAppendedEndFragment';_this.CHECK_FOR_EXISTENCE_COMPLETED='checkForExistenceCompleted';_this.CURRENT_TRACK_CHANGED='currentTrackChanged';_this.DATA_UPDATE_COMPLETED='dataUpdateCompleted';_this.DATA_UPDATE_STARTED='dataUpdateStarted';_this.INITIALIZATION_LOADED='initializationLoaded';_this.INIT_FRAGMENT_LOADED='initFragmentLoaded';_this.INIT_REQUESTED='initRequested';_this.INTERNAL_MANIFEST_LOADED='internalManifestLoaded';_this.ORIGINAL_MANIFEST_LOADED='originalManifestLoaded';_this.LIVE_EDGE_SEARCH_COMPLETED='liveEdgeSearchCompleted';_this.LOADING_COMPLETED='loadingCompleted';_this.LOADING_PROGRESS='loadingProgress';_this.LOADING_DATA_PROGRESS='loadingDataProgress';_this.LOADING_ABANDONED='loadingAborted';_this.MANIFEST_UPDATED='manifestUpdated';_this.MEDIA_FRAGMENT_LOADED='mediaFragmentLoaded';_this.QUOTA_EXCEEDED='quotaExceeded';_this.REPRESENTATION_UPDATE_STARTED='representationUpdateStarted';_this.REPRESENTATION_UPDATE_COMPLETED='representationUpdateCompleted';_this.SEGMENTS_LOADED='segmentsLoaded';_this.SERVICE_LOCATION_BLACKLIST_ADD='serviceLocationBlacklistAdd';_this.SERVICE_LOCATION_BLACKLIST_CHANGED='serviceLocationBlacklistChanged';_this.SOURCEBUFFER_REMOVE_COMPLETED='sourceBufferRemoveCompleted';_this.STREAMS_COMPOSED='streamsComposed';_this.STREAM_BUFFERING_COMPLETED='streamBufferingCompleted';_this.STREAM_COMPLETED='streamCompleted';_this.TEXT_TRACKS_QUEUE_INITIALIZED='textTracksQueueInitialized';_this.TIMED_TEXT_REQUESTED='timedTextRequested';_this.TIME_SYNCHRONIZATION_COMPLETED='timeSynchronizationComplete';_this.URL_RESOLUTION_FAILED='urlResolutionFailed';_this.VIDEO_CHUNK_RECEIVED='videoChunkReceived';_this.WALLCLOCK_TIME_UPDATED='wallclockTimeUpdated';_this.XLINK_ELEMENT_LOADED='xlinkElementLoaded';_this.XLINK_READY='xlinkReady';_this.SEGMENTBASE_INIT_REQUEST_NEEDED='segmentBaseInitRequestNeeded';_this.SEGMENTBASE_SEGMENTSLIST_REQUEST_NEEDED='segmentBaseSegmentsListRequestNeeded';return _this;}return CoreEvents;}(_EventsBase3.default);exports.default=CoreEvents;\n//# sourceMappingURL=CoreEvents.js.map\n","var MAX_UINT32 = Math.pow(2, 32);\n\nvar parseSidx = function(data) {\n  var view = new DataView(data.buffer, data.byteOffset, data.byteLength),\n      result = {\n        version: data[0],\n        flags: new Uint8Array(data.subarray(1, 4)),\n        references: [],\n        referenceId: view.getUint32(4),\n        timescale: view.getUint32(8)\n      },\n    i = 12;\n\n  if (result.version === 0) {\n    result.earliestPresentationTime = view.getUint32(i);\n    result.firstOffset = view.getUint32(i + 4);\n    i += 8;\n  } else {\n    // read 64 bits\n    result.earliestPresentationTime = (view.getUint32(i) * MAX_UINT32) + view.getUint32(i + 4);\n    result.firstOffset = (view.getUint32(i + 8) * MAX_UINT32) + view.getUint32(i + 12);\n    i += 16;\n  }\n\n  i += 2; // reserved\n\n  var referenceCount = view.getUint16(i);\n\n  i += 2; // start of references\n\n  for (; referenceCount > 0; i += 12, referenceCount--) {\n    result.references.push({\n      referenceType: (data[i] & 0x80) >>> 7,\n      referencedSize: view.getUint32(i) & 0x7FFFFFFF,\n      subsegmentDuration: view.getUint32(i + 4),\n      startsWithSap: !!(data[i + 8] & 0x80),\n      sapType: (data[i + 8] & 0x70) >>> 4,\n      sapDeltaTime: view.getUint32(i + 8) & 0x0FFFFFFF\n    });\n  }\n\n  return result;\n};\n\n\nmodule.exports = parseSidx;\n","var isObject = require('../internals/is-object');\n\nmodule.exports = function (it) {\n  if (!isObject(it)) {\n    throw TypeError(String(it) + ' is not an object');\n  } return it;\n};\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _MapNode2=require('./MapNode');var _MapNode3=_interopRequireDefault(_MapNode2);var _DashConstants=require('../../constants/DashConstants');var _DashConstants2=_interopRequireDefault(_DashConstants);function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}function _classCallCheck(instance,Constructor){if(!(instance instanceof Constructor)){throw new TypeError(\"Cannot call a class as a function\");}}function _possibleConstructorReturn(self,call){if(!self){throw new ReferenceError(\"this hasn't been initialised - super() hasn't been called\");}return call&&(typeof call===\"object\"||typeof call===\"function\")?call:self;}function _inherits(subClass,superClass){if(typeof superClass!==\"function\"&&superClass!==null){throw new TypeError(\"Super expression must either be null or a function, not \"+typeof superClass);}subClass.prototype=Object.create(superClass&&superClass.prototype,{constructor:{value:subClass,enumerable:false,writable:true,configurable:true}});if(superClass)Object.setPrototypeOf?Object.setPrototypeOf(subClass,superClass):subClass.__proto__=superClass;}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n *//**\n * @classdesc a RepresentationBaseValuesMap type for input to objectiron\n */var RepresentationBaseValuesMap=function(_MapNode){_inherits(RepresentationBaseValuesMap,_MapNode);function RepresentationBaseValuesMap(){_classCallCheck(this,RepresentationBaseValuesMap);var commonProperties=[_DashConstants2.default.PROFILES,_DashConstants2.default.WIDTH,_DashConstants2.default.HEIGHT,_DashConstants2.default.SAR,_DashConstants2.default.FRAMERATE,_DashConstants2.default.AUDIO_SAMPLING_RATE,_DashConstants2.default.MIME_TYPE,_DashConstants2.default.SEGMENT_PROFILES,_DashConstants2.default.CODECS,_DashConstants2.default.MAXIMUM_SAP_PERIOD,_DashConstants2.default.START_WITH_SAP,_DashConstants2.default.MAX_PLAYOUT_RATE,_DashConstants2.default.CODING_DEPENDENCY,_DashConstants2.default.SCAN_TYPE,_DashConstants2.default.FRAME_PACKING,_DashConstants2.default.AUDIO_CHANNEL_CONFIGURATION,_DashConstants2.default.CONTENT_PROTECTION,_DashConstants2.default.ESSENTIAL_PROPERTY,_DashConstants2.default.SUPPLEMENTAL_PROPERTY,_DashConstants2.default.INBAND_EVENT_STREAM];return _possibleConstructorReturn(this,(RepresentationBaseValuesMap.__proto__||Object.getPrototypeOf(RepresentationBaseValuesMap)).call(this,_DashConstants2.default.ADAPTATION_SET,commonProperties,[new _MapNode3.default(_DashConstants2.default.REPRESENTATION,commonProperties,[new _MapNode3.default(_DashConstants2.default.SUB_REPRESENTATION,commonProperties)])]));}return RepresentationBaseValuesMap;}(_MapNode3.default);exports.default=RepresentationBaseValuesMap;\n//# sourceMappingURL=RepresentationBaseValuesMap.js.map\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _IsoBox=require('../vo/IsoBox');var _IsoBox2=_interopRequireDefault(_IsoBox);var _FactoryMaker=require('../../core/FactoryMaker');var _FactoryMaker2=_interopRequireDefault(_FactoryMaker);function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n */function IsoFile(){var instance=void 0,parsedIsoFile=void 0;/**\n    * @param {string} type\n    * @returns {IsoBox|null}\n    * @memberof IsoFile#\n    */function getBox(type){if(!type||!parsedIsoFile||!parsedIsoFile.boxes||parsedIsoFile.boxes.length===0||typeof parsedIsoFile.fetch!=='function')return null;return convertToDashIsoBox(parsedIsoFile.fetch(type));}/**\n    * @param {string} type\n    * @returns {Array|null} array of {@link IsoBox}\n    * @memberof IsoFile#\n    */function getBoxes(type){var boxes=[];if(!type||!parsedIsoFile||typeof parsedIsoFile.fetchAll!=='function'){return boxes;}var boxData=parsedIsoFile.fetchAll(type);var box=void 0;for(var i=0,ln=boxData.length;i<ln;i++){box=convertToDashIsoBox(boxData[i]);if(box){boxes.push(box);}}return boxes;}/**\n    * @param {string} value\n    * @memberof IsoFile#\n    */function setData(value){parsedIsoFile=value;}/**\n    * @returns {IsoBox|null}\n    * @memberof IsoFile#\n    */function getLastBox(){if(!parsedIsoFile||!parsedIsoFile.boxes||!parsedIsoFile.boxes.length)return null;var type=parsedIsoFile.boxes[parsedIsoFile.boxes.length-1].type;var boxes=getBoxes(type);return boxes.length>0?boxes[boxes.length-1]:null;}function convertToDashIsoBox(boxData){if(!boxData)return null;var box=new _IsoBox2.default(boxData);if(boxData.hasOwnProperty('_incomplete')){box.isComplete=!boxData._incomplete;}return box;}instance={getBox:getBox,getBoxes:getBoxes,setData:setData,getLastBox:getLastBox};return instance;}IsoFile.__dashjs_factory_name='IsoFile';exports.default=_FactoryMaker2.default.getClassFactory(IsoFile);\n//# sourceMappingURL=IsoFile.js.map\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _FactoryMaker=require('../../core/FactoryMaker');var _FactoryMaker2=_interopRequireDefault(_FactoryMaker);var _Debug=require('../../core/Debug');var _Debug2=_interopRequireDefault(_Debug);var _objectiron=require('./objectiron');var _objectiron2=_interopRequireDefault(_objectiron);var _xml2json=require('../../../externals/xml2json');var _xml2json2=_interopRequireDefault(_xml2json);var _StringMatcher=require('./matchers/StringMatcher');var _StringMatcher2=_interopRequireDefault(_StringMatcher);var _DurationMatcher=require('./matchers/DurationMatcher');var _DurationMatcher2=_interopRequireDefault(_DurationMatcher);var _DateTimeMatcher=require('./matchers/DateTimeMatcher');var _DateTimeMatcher2=_interopRequireDefault(_DateTimeMatcher);var _NumericMatcher=require('./matchers/NumericMatcher');var _NumericMatcher2=_interopRequireDefault(_NumericMatcher);var _RepresentationBaseValuesMap=require('./maps/RepresentationBaseValuesMap');var _RepresentationBaseValuesMap2=_interopRequireDefault(_RepresentationBaseValuesMap);var _SegmentValuesMap=require('./maps/SegmentValuesMap');var _SegmentValuesMap2=_interopRequireDefault(_SegmentValuesMap);function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n */function DashParser(){var context=this.context;var instance=void 0,logger=void 0,matchers=void 0,converter=void 0,objectIron=void 0;function setup(){logger=(0,_Debug2.default)(context).getInstance().getLogger(instance);matchers=[new _DurationMatcher2.default(),new _DateTimeMatcher2.default(),new _NumericMatcher2.default(),new _StringMatcher2.default()// last in list to take precedence over NumericMatcher\n];converter=new _xml2json2.default({escapeMode:false,attributePrefix:'',arrayAccessForm:'property',emptyNodeForm:'object',stripWhitespaces:false,enableToStringFunc:true,ignoreRoot:true,matchers:matchers});objectIron=(0,_objectiron2.default)(context).create({adaptationset:new _RepresentationBaseValuesMap2.default(),period:new _SegmentValuesMap2.default()});}function getMatchers(){return matchers;}function getIron(){return objectIron;}function parse(data){var manifest=void 0;var startTime=window.performance.now();manifest=converter.xml_str2json(data);if(!manifest){throw new Error('parsing the manifest failed');}var jsonTime=window.performance.now();objectIron.run(manifest);var ironedTime=window.performance.now();logger.info('Parsing complete: ( xml2json: '+(jsonTime-startTime).toPrecision(3)+'ms, objectiron: '+(ironedTime-jsonTime).toPrecision(3)+'ms, total: '+((ironedTime-startTime)/1000).toPrecision(3)+'s)');return manifest;}instance={parse:parse,getMatchers:getMatchers,getIron:getIron};setup();return instance;}DashParser.__dashjs_factory_name='DashParser';exports.default=_FactoryMaker2.default.getClassFactory(DashParser);\n//# sourceMappingURL=DashParser.js.map\n","module.exports = isFunction\n\nvar toString = Object.prototype.toString\n\nfunction isFunction (fn) {\n  if (!fn) {\n    return false\n  }\n  var string = toString.call(fn)\n  return string === '[object Function]' ||\n    (typeof fn === 'function' && string !== '[object RegExp]') ||\n    (typeof window !== 'undefined' &&\n     // IE8 and below\n     (fn === window.setTimeout ||\n      fn === window.alert ||\n      fn === window.confirm ||\n      fn === window.prompt))\n};\n","var fails = require('../internals/fails');\n\n// Thank's IE8 for his funny defineProperty\nmodule.exports = !fails(function () {\n  return Object.defineProperty({}, 1, { get: function () { return 7; } })[1] != 7;\n});\n","'use strict';\n\nvar isAbsoluteURL = require('../helpers/isAbsoluteURL');\nvar combineURLs = require('../helpers/combineURLs');\n\n/**\n * Creates a new URL by combining the baseURL with the requestedURL,\n * only when the requestedURL is not already an absolute URL.\n * If the requestURL is absolute, this function returns the requestedURL untouched.\n *\n * @param {string} baseURL The base URL\n * @param {string} requestedURL Absolute or relative URL to combine\n * @returns {string} The combined full path\n */\nmodule.exports = function buildFullPath(baseURL, requestedURL) {\n  if (baseURL && !isAbsoluteURL(requestedURL)) {\n    return combineURLs(baseURL, requestedURL);\n  }\n  return requestedURL;\n};\n","'use strict';\nvar toPrimitive = require('../internals/to-primitive');\nvar definePropertyModule = require('../internals/object-define-property');\nvar createPropertyDescriptor = require('../internals/create-property-descriptor');\n\nmodule.exports = function (object, key, value) {\n  var propertyKey = toPrimitive(key);\n  if (propertyKey in object) definePropertyModule.f(object, propertyKey, createPropertyDescriptor(0, value));\n  else object[propertyKey] = value;\n};\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _FactoryMaker=require('../../core/FactoryMaker');var _FactoryMaker2=_interopRequireDefault(_FactoryMaker);var _Debug=require('../../core/Debug');var _Debug2=_interopRequireDefault(_Debug);function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n */function MediaSourceController(){var instance=void 0,logger=void 0;var context=this.context;function setup(){logger=(0,_Debug2.default)(context).getInstance().getLogger(instance);}function createMediaSource(){var hasWebKit='WebKitMediaSource'in window;var hasMediaSource='MediaSource'in window;if(hasMediaSource){return new MediaSource();}else if(hasWebKit){return new WebKitMediaSource();}return null;}function attachMediaSource(source,videoModel){var objectURL=window.URL.createObjectURL(source);videoModel.setSource(objectURL);return objectURL;}function detachMediaSource(videoModel){videoModel.setSource(null);}function setDuration(source,value){if(source.duration!=value)source.duration=value;return source.duration;}function setSeekable(source,start,end){if(source&&typeof source.setLiveSeekableRange==='function'&&typeof source.clearLiveSeekableRange==='function'&&source.readyState==='open'&&start>=0&&start<end){source.clearLiveSeekableRange();source.setLiveSeekableRange(start,end);}}function signalEndOfStream(source){if(!source||source.readyState!=='open'){return;}var buffers=source.sourceBuffers;for(var i=0;i<buffers.length;i++){if(buffers[i].updating){return;}if(buffers[i].buffered.length===0){return;}}logger.info('call to mediaSource endOfStream');source.endOfStream();}instance={createMediaSource:createMediaSource,attachMediaSource:attachMediaSource,detachMediaSource:detachMediaSource,setDuration:setDuration,setSeekable:setSeekable,signalEndOfStream:signalEndOfStream};setup();return instance;}MediaSourceController.__dashjs_factory_name='MediaSourceController';exports.default=_FactoryMaker2.default.getSingletonFactory(MediaSourceController);\n//# sourceMappingURL=MediaSourceController.js.map\n","module.exports = function (it) {\n  return typeof it === 'object' ? it !== null : typeof it === 'function';\n};\n","/* eslint-disable node/no-deprecated-api */\nvar buffer = require('buffer')\nvar Buffer = buffer.Buffer\n\n// alternative to using Object.keys for old browsers\nfunction copyProps (src, dst) {\n  for (var key in src) {\n    dst[key] = src[key]\n  }\n}\nif (Buffer.from && Buffer.alloc && Buffer.allocUnsafe && Buffer.allocUnsafeSlow) {\n  module.exports = buffer\n} else {\n  // Copy properties from require('buffer')\n  copyProps(buffer, exports)\n  exports.Buffer = SafeBuffer\n}\n\nfunction SafeBuffer (arg, encodingOrOffset, length) {\n  return Buffer(arg, encodingOrOffset, length)\n}\n\n// Copy static methods from Buffer\ncopyProps(Buffer, SafeBuffer)\n\nSafeBuffer.from = function (arg, encodingOrOffset, length) {\n  if (typeof arg === 'number') {\n    throw new TypeError('Argument must not be a number')\n  }\n  return Buffer(arg, encodingOrOffset, length)\n}\n\nSafeBuffer.alloc = function (size, fill, encoding) {\n  if (typeof size !== 'number') {\n    throw new TypeError('Argument must be a number')\n  }\n  var buf = Buffer(size)\n  if (fill !== undefined) {\n    if (typeof encoding === 'string') {\n      buf.fill(fill, encoding)\n    } else {\n      buf.fill(fill)\n    }\n  } else {\n    buf.fill(0)\n  }\n  return buf\n}\n\nSafeBuffer.allocUnsafe = function (size) {\n  if (typeof size !== 'number') {\n    throw new TypeError('Argument must be a number')\n  }\n  return Buffer(size)\n}\n\nSafeBuffer.allocUnsafeSlow = function (size) {\n  if (typeof size !== 'number') {\n    throw new TypeError('Argument must be a number')\n  }\n  return buffer.SlowBuffer(size)\n}\n","/* \r\n * Copyright (c) 2016, Pierre-Anthony Lemieux <pal@sandflow.com>\r\n * All rights reserved.\r\n *\r\n * Redistribution and use in source and binary forms, with or without\r\n * modification, are permitted provided that the following conditions are met:\r\n *\r\n * * Redistributions of source code must retain the above copyright notice, this\r\n *   list of conditions and the following disclaimer.\r\n * * Redistributions in binary form must reproduce the above copyright notice,\r\n *   this list of conditions and the following disclaimer in the documentation\r\n *   and/or other materials provided with the distribution.\r\n *\r\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS \"AS IS\"\r\n * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE\r\n * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE\r\n * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE\r\n * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR\r\n * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF\r\n * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS\r\n * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN\r\n * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\r\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\r\n * POSSIBILITY OF SUCH DAMAGE.\r\n */\r\n\r\n/**\r\n * @module imscHTML\r\n */\r\n\r\n;\r\n(function (imscHTML, imscNames, imscStyles) {\r\n\r\n    /**\r\n     * Function that maps <pre>smpte:background</pre> URIs to URLs resolving to image resource\r\n     * @callback IMGResolver\r\n     * @param {string} <pre>smpte:background</pre> URI\r\n     * @return {string} PNG resource URL\r\n     */\r\n\r\n\r\n    /**\r\n     * Renders an ISD object (returned by <pre>generateISD()</pre>) into a \r\n     * parent element, that must be attached to the DOM. The ISD will be rendered\r\n     * into a child <pre>div</pre>\r\n     * with heigh and width equal to the clientHeight and clientWidth of the element,\r\n     * unless explicitly specified otherwise by the caller. Images URIs specified \r\n     * by <pre>smpte:background</pre> attributes are mapped to image resource URLs\r\n     * by an <pre>imgResolver</pre> function. The latter takes the value of <code>smpte:background</code>\r\n     * attribute and an <code>img</code> DOM element as input, and is expected to\r\n     * set the <code>src</code> attribute of the <code>img</code> to the absolute URI of the image.\r\n     * <pre>displayForcedOnlyMode</pre> sets the (boolean)\r\n     * value of the IMSC1 displayForcedOnlyMode parameter. The function returns\r\n     * an opaque object that should passed in <code>previousISDState</code> when this function\r\n     * is called for the next ISD, otherwise <code>previousISDState</code> should be set to \r\n     * <code>null</code>.\r\n     * \r\n     * @param {Object} isd ISD to be rendered\r\n     * @param {Object} element Element into which the ISD is rendered\r\n     * @param {?IMGResolver} imgResolver Resolve <pre>smpte:background</pre> URIs into URLs.\r\n     * @param {?number} eheight Height (in pixel) of the child <div>div</div> or null \r\n     *                  to use clientHeight of the parent element\r\n     * @param {?number} ewidth Width (in pixel) of the child <div>div</div> or null\r\n     *                  to use clientWidth of the parent element\r\n     * @param {?boolean} displayForcedOnlyMode Value of the IMSC1 displayForcedOnlyMode parameter,\r\n     *                   or false if null         \r\n     * @param {?module:imscUtils.ErrorHandler} errorHandler Error callback\r\n     * @param {Object} previousISDState State saved during processing of the previous ISD, or null if initial call\r\n     * @param {?boolean} enableRollUp Enables roll-up animations (see CEA 708)\r\n     * @return {Object} ISD state to be provided when this funtion is called for the next ISD\r\n     */\r\n\r\n    imscHTML.render = function (isd,\r\n            element,\r\n            imgResolver,\r\n            eheight,\r\n            ewidth,\r\n            displayForcedOnlyMode,\r\n            errorHandler,\r\n            previousISDState,\r\n            enableRollUp\r\n            ) {\r\n\r\n        /* maintain aspect ratio if specified */\r\n\r\n        var height = eheight || element.clientHeight;\r\n        var width = ewidth || element.clientWidth;\r\n\r\n        if (isd.aspectRatio !== null) {\r\n\r\n            var twidth = height * isd.aspectRatio;\r\n\r\n            if (twidth > width) {\r\n\r\n                height = Math.round(width / isd.aspectRatio);\r\n\r\n            } else {\r\n\r\n                width = twidth;\r\n\r\n            }\r\n\r\n        }\r\n\r\n        var rootcontainer = document.createElement(\"div\");\r\n\r\n        rootcontainer.style.position = \"relative\";\r\n        rootcontainer.style.width = width + \"px\";\r\n        rootcontainer.style.height = height + \"px\";\r\n        rootcontainer.style.margin = \"auto\";\r\n        rootcontainer.style.top = 0;\r\n        rootcontainer.style.bottom = 0;\r\n        rootcontainer.style.left = 0;\r\n        rootcontainer.style.right = 0;\r\n        rootcontainer.style.zIndex = 0;\r\n\r\n        var context = {\r\n            h: height,\r\n            w: width,\r\n            regionH: null,\r\n            regionW: null,\r\n            imgResolver: imgResolver,\r\n            displayForcedOnlyMode: displayForcedOnlyMode || false,\r\n            isd: isd,\r\n            errorHandler: errorHandler,\r\n            previousISDState: previousISDState,\r\n            enableRollUp: enableRollUp || false,\r\n            currentISDState: {},\r\n            flg: null, /* current fillLineGap value if active, null otherwise */\r\n            lp: null, /* current linePadding value if active, null otherwise */\r\n            mra: null, /* current multiRowAlign value if active, null otherwise */\r\n            ipd: null, /* inline progression direction (lr, rl, tb) */\r\n            bpd: null, /* block progression direction (lr, rl, tb) */\r\n            ruby: null, /* is ruby present in a <p> */\r\n            textEmphasis: null, /* is textEmphasis present in a <p> */\r\n            rubyReserve: null /* is rubyReserve applicable to a <p> */\r\n        };\r\n\r\n        element.appendChild(rootcontainer);\r\n\r\n        for (var i in isd.contents) {\r\n\r\n            processElement(context, rootcontainer, isd.contents[i]);\r\n\r\n        }\r\n\r\n        return context.currentISDState;\r\n\r\n    };\r\n\r\n    function processElement(context, dom_parent, isd_element) {\r\n\r\n        var e;\r\n\r\n        if (isd_element.kind === 'region') {\r\n\r\n            e = document.createElement(\"div\");\r\n            e.style.position = \"absolute\";\r\n\r\n        } else if (isd_element.kind === 'body') {\r\n\r\n            e = document.createElement(\"div\");\r\n\r\n        } else if (isd_element.kind === 'div') {\r\n\r\n            e = document.createElement(\"div\");\r\n\r\n        } else if (isd_element.kind === 'image') {\r\n\r\n            e = document.createElement(\"img\");\r\n\r\n            if (context.imgResolver !== null && isd_element.src !== null) {\r\n\r\n                var uri = context.imgResolver(isd_element.src, e);\r\n\r\n                if (uri)\r\n                    e.src = uri;\r\n\r\n                e.height = context.regionH;\r\n                e.width = context.regionW;\r\n\r\n            }\r\n\r\n        } else if (isd_element.kind === 'p') {\r\n\r\n            e = document.createElement(\"p\");\r\n\r\n        } else if (isd_element.kind === 'span') {\r\n\r\n            if (isd_element.styleAttrs[imscStyles.byName.ruby.qname] === \"container\") {\r\n\r\n                e = document.createElement(\"ruby\");\r\n\r\n                context.ruby = true;\r\n\r\n            } else if (isd_element.styleAttrs[imscStyles.byName.ruby.qname] === \"base\") {\r\n\r\n                e = document.createElement(\"rb\");\r\n\r\n            } else if (isd_element.styleAttrs[imscStyles.byName.ruby.qname] === \"text\") {\r\n\r\n                e = document.createElement(\"rt\");\r\n\r\n\r\n            } else if (isd_element.styleAttrs[imscStyles.byName.ruby.qname] === \"baseContainer\") {\r\n\r\n                e = document.createElement(\"rbc\");\r\n\r\n\r\n            } else if (isd_element.styleAttrs[imscStyles.byName.ruby.qname] === \"textContainer\") {\r\n\r\n                e = document.createElement(\"rtc\");\r\n\r\n\r\n            } else if (isd_element.styleAttrs[imscStyles.byName.ruby.qname] === \"delimiter\") {\r\n\r\n                /* ignore rp */\r\n\r\n                return;\r\n\r\n            } else {\r\n\r\n                e = document.createElement(\"span\");\r\n\r\n            }\r\n\r\n            var te = isd_element.styleAttrs[imscStyles.byName.textEmphasis.qname];\r\n\r\n            if (te && te.style !== \"none\") {\r\n\r\n                context.textEmphasis = true;\r\n\r\n            }\r\n\r\n            //e.textContent = isd_element.text;\r\n\r\n        } else if (isd_element.kind === 'br') {\r\n\r\n            e = document.createElement(\"br\");\r\n\r\n        }\r\n\r\n        if (!e) {\r\n\r\n            reportError(context.errorHandler, \"Error processing ISD element kind: \" + isd_element.kind);\r\n\r\n            return;\r\n\r\n        }\r\n\r\n        /* add to parent */\r\n\r\n        dom_parent.appendChild(e);\r\n\r\n        /* override UA default margin */\r\n        /* TODO: should apply to <p> only */\r\n\r\n        e.style.margin = \"0\";\r\n\r\n        /* tranform TTML styles to CSS styles */\r\n\r\n        for (var i in STYLING_MAP_DEFS) {\r\n\r\n            var sm = STYLING_MAP_DEFS[i];\r\n\r\n            var attr = isd_element.styleAttrs[sm.qname];\r\n\r\n            if (attr !== undefined && sm.map !== null) {\r\n\r\n                sm.map(context, e, isd_element, attr);\r\n\r\n            }\r\n\r\n        }\r\n\r\n        var proc_e = e;\r\n\r\n        /* remember writing direction */\r\n\r\n        if (isd_element.kind === \"region\") {\r\n\r\n            var wdir = isd_element.styleAttrs[imscStyles.byName.writingMode.qname];\r\n\r\n            if (wdir === \"lrtb\" || wdir === \"lr\") {\r\n\r\n                context.ipd = \"lr\";\r\n                context.bpd = \"tb\";\r\n\r\n            } else if (wdir === \"rltb\" || wdir === \"rl\") {\r\n\r\n                context.ipd = \"rl\";\r\n                context.bpd = \"tb\";\r\n\r\n            } else if (wdir === \"tblr\") {\r\n\r\n                context.ipd = \"tb\";\r\n                context.bpd = \"lr\";\r\n\r\n            } else if (wdir === \"tbrl\" || wdir === \"tb\") {\r\n\r\n                context.ipd = \"tb\";\r\n                context.bpd = \"rl\";\r\n\r\n            }\r\n\r\n        }\r\n\r\n        /* do we have linePadding ? */\r\n\r\n        var lp = isd_element.styleAttrs[imscStyles.byName.linePadding.qname];\r\n\r\n        if (lp && (! lp.isZero())) {\r\n\r\n            var plength = lp.toUsedLength(context.w, context.h);\r\n\r\n\r\n            if (plength > 0) {\r\n                \r\n                /* apply padding to the <p> so that line padding does not cause line wraps */\r\n\r\n                var padmeasure = Math.ceil(plength) + \"px\";\r\n\r\n                if (context.bpd === \"tb\") {\r\n\r\n                    proc_e.style.paddingLeft = padmeasure;\r\n                    proc_e.style.paddingRight = padmeasure;\r\n\r\n                } else {\r\n\r\n                    proc_e.style.paddingTop = padmeasure;\r\n                    proc_e.style.paddingBottom = padmeasure;\r\n\r\n                }\r\n\r\n                context.lp = lp;\r\n            }\r\n        }\r\n\r\n        // do we have multiRowAlign?\r\n\r\n        var mra = isd_element.styleAttrs[imscStyles.byName.multiRowAlign.qname];\r\n\r\n        if (mra && mra !== \"auto\") {\r\n\r\n            /* create inline block to handle multirowAlign */\r\n\r\n            var s = document.createElement(\"span\");\r\n\r\n            s.style.display = \"inline-block\";\r\n\r\n            s.style.textAlign = mra;\r\n\r\n            e.appendChild(s);\r\n\r\n            proc_e = s;\r\n\r\n            context.mra = mra;\r\n\r\n        }\r\n\r\n        /* do we have rubyReserve? */\r\n\r\n        var rr = isd_element.styleAttrs[imscStyles.byName.rubyReserve.qname];\r\n\r\n        if (rr && rr[0] !== \"none\") {\r\n            context.rubyReserve = rr;\r\n        }\r\n\r\n\r\n        /* remember we are filling line gaps */\r\n\r\n        if (isd_element.styleAttrs[imscStyles.byName.fillLineGap.qname]) {\r\n            context.flg = true;\r\n        }\r\n\r\n\r\n        if (isd_element.kind === \"span\" && isd_element.text) {\r\n\r\n            if (imscStyles.byName.textCombine.qname in isd_element.styleAttrs &&\r\n                    isd_element.styleAttrs[imscStyles.byName.textCombine.qname][0] === \"all\") {\r\n\r\n                /* ignore tate-chu-yoku since line break cannot happen within */\r\n                e.textContent = isd_element.text;\r\n\r\n            } else {\r\n\r\n                // wrap characters in spans to find the line wrap locations\r\n\r\n                var cbuf = '';\r\n\r\n                for (var j = 0; j < isd_element.text.length; j++) {\r\n\r\n                    cbuf += isd_element.text.charAt(j);\r\n\r\n                    var cc = isd_element.text.charCodeAt(j);\r\n\r\n                    if (cc < 0xD800 || cc > 0xDBFF || j === isd_element.text.length) {\r\n\r\n                        /* wrap the character(s) in a span unless it is a high surrogate */\r\n\r\n                        var span = document.createElement(\"span\");\r\n\r\n                        span.textContent = cbuf;\r\n    \r\n                        e.appendChild(span);\r\n\r\n                        cbuf = '';\r\n\r\n                    }\r\n\r\n                }\r\n\r\n            }\r\n        }\r\n\r\n        /* process the children of the ISD element */\r\n\r\n        for (var k in isd_element.contents) {\r\n\r\n            processElement(context, proc_e, isd_element.contents[k]);\r\n\r\n        }\r\n\r\n        /* list of lines */\r\n\r\n        var linelist = [];\r\n\r\n\r\n        /* paragraph processing */\r\n        /* TODO: linePadding only supported for horizontal scripts */\r\n\r\n        if ((context.lp || context.mra || context.flg || context.ruby || context.textEmphasis || context.rubyReserve) &&\r\n                isd_element.kind === \"p\") {\r\n\r\n            constructLineList(context, proc_e, linelist, null);\r\n\r\n            /* apply rubyReserve */\r\n\r\n            if (context.rubyReserve) {\r\n\r\n                applyRubyReserve(linelist, context);\r\n\r\n                context.rubyReserve = null;\r\n\r\n            }\r\n\r\n            /* apply tts:rubyPosition=\"outside\" */\r\n\r\n            if (context.ruby || context.rubyReserve) {\r\n\r\n                applyRubyPosition(linelist, context);\r\n\r\n                context.ruby = null;\r\n\r\n            }\r\n\r\n            /* apply text emphasis \"outside\" position */\r\n\r\n            if (context.textEmphasis) {\r\n\r\n                applyTextEmphasis(linelist, context);\r\n\r\n                context.textEmphasis = null;\r\n\r\n            }\r\n\r\n            /* insert line breaks for multirowalign */\r\n\r\n            if (context.mra) {\r\n\r\n                applyMultiRowAlign(linelist);\r\n\r\n                context.mra = null;\r\n\r\n            }\r\n\r\n            /* add linepadding */\r\n\r\n            if (context.lp) {\r\n\r\n                applyLinePadding(linelist, context.lp.toUsedLength(context.w, context.h), context);\r\n\r\n                context.lp = null;\r\n\r\n            }\r\n\r\n            /* fill line gaps linepadding */\r\n\r\n            if (context.flg) {\r\n\r\n                var par_edges = rect2edges(proc_e.getBoundingClientRect(), context);\r\n\r\n                applyFillLineGap(linelist, par_edges.before, par_edges.after, context);\r\n\r\n                context.flg = null;\r\n\r\n            }\r\n\r\n        }\r\n\r\n\r\n        /* region processing */\r\n\r\n        if (isd_element.kind === \"region\") {\r\n\r\n            /* build line list */\r\n\r\n            constructLineList(context, proc_e, linelist);\r\n\r\n            /* perform roll up if needed */\r\n\r\n            if ((context.bpd === \"tb\") &&\r\n                    context.enableRollUp &&\r\n                    isd_element.contents.length > 0 &&\r\n                    isd_element.styleAttrs[imscStyles.byName.displayAlign.qname] === 'after') {\r\n\r\n                /* horrible hack, perhaps default region id should be underscore everywhere? */\r\n\r\n                var rid = isd_element.id === '' ? '_' : isd_element.id;\r\n\r\n                var rb = new RegionPBuffer(rid, linelist);\r\n\r\n                context.currentISDState[rb.id] = rb;\r\n\r\n                if (context.previousISDState &&\r\n                        rb.id in context.previousISDState &&\r\n                        context.previousISDState[rb.id].plist.length > 0 &&\r\n                        rb.plist.length > 1 &&\r\n                        rb.plist[rb.plist.length - 2].text ===\r\n                        context.previousISDState[rb.id].plist[context.previousISDState[rb.id].plist.length - 1].text) {\r\n\r\n                    var body_elem = e.firstElementChild;\r\n\r\n                    var h = rb.plist[rb.plist.length - 1].after - rb.plist[rb.plist.length - 1].before;\r\n\r\n                    body_elem.style.bottom = \"-\" + h + \"px\";\r\n                    body_elem.style.transition = \"transform 0.4s\";\r\n                    body_elem.style.position = \"relative\";\r\n                    body_elem.style.transform = \"translateY(-\" + h + \"px)\";\r\n\r\n                }\r\n\r\n            }\r\n\r\n            /* TODO: clean-up the spans ? */\r\n\r\n        }\r\n    }\r\n\r\n    function applyLinePadding(lineList, lp, context) {\r\n\r\n        for (var i in lineList) {\r\n\r\n            var l = lineList[i].elements.length;\r\n\r\n            var se = lineList[i].elements[lineList[i].start_elem];\r\n\r\n            var ee = lineList[i].elements[lineList[i].end_elem];\r\n\r\n            var pospadpxlen = Math.ceil(lp) + \"px\";\r\n\r\n            var negpadpxlen = \"-\" + Math.ceil(lp) + \"px\";\r\n\r\n            if (l !== 0) {\r\n\r\n                if (context.ipd === \"lr\") {\r\n\r\n                    se.node.style.borderLeftColor = se.bgcolor || \"#00000000\";\r\n                    se.node.style.borderLeftStyle = \"solid\";\r\n                    se.node.style.borderLeftWidth = pospadpxlen;\r\n                    se.node.style.marginLeft = negpadpxlen;\r\n\r\n                } else if (context.ipd === \"rl\") {\r\n\r\n                    se.node.style.borderRightColor = se.bgcolor || \"#00000000\";\r\n                    se.node.style.borderRightStyle = \"solid\";\r\n                    se.node.style.borderRightWidth = pospadpxlen;\r\n                    se.node.style.marginRight = negpadpxlen;\r\n\r\n                } else if (context.ipd === \"tb\") {\r\n\r\n                    se.node.style.borderTopColor = se.bgcolor || \"#00000000\";\r\n                    se.node.style.borderTopStyle = \"solid\";\r\n                    se.node.style.borderTopWidth = pospadpxlen;\r\n                    se.node.style.marginTop = negpadpxlen;\r\n\r\n                }\r\n\r\n                if (context.ipd === \"lr\") {\r\n\r\n                    ee.node.style.borderRightColor = ee.bgcolor  || \"#00000000\";\r\n                    ee.node.style.borderRightStyle = \"solid\";\r\n                    ee.node.style.borderRightWidth = pospadpxlen;\r\n                    ee.node.style.marginRight = negpadpxlen;\r\n\r\n                } else if (context.ipd === \"rl\") {\r\n\r\n                    ee.node.style.borderLeftColor = ee.bgcolor || \"#00000000\";\r\n                    ee.node.style.borderLeftStyle = \"solid\";\r\n                    ee.node.style.borderLeftWidth = pospadpxlen;\r\n                    ee.node.style.marginLeft = negpadpxlen;\r\n\r\n                } else if (context.ipd === \"tb\") {\r\n\r\n                    ee.node.style.borderBottomColor = ee.bgcolor || \"#00000000\";\r\n                    ee.node.style.borderBottomStyle = \"solid\";\r\n                    ee.node.style.borderBottomWidth = pospadpxlen;\r\n                    ee.node.style.marginBottom = negpadpxlen;\r\n\r\n                }\r\n\r\n            }\r\n\r\n        }\r\n\r\n    }\r\n\r\n    function applyMultiRowAlign(lineList) {\r\n\r\n        /* apply an explicit br to all but the last line */\r\n\r\n        for (var i = 0; i < lineList.length - 1; i++) {\r\n\r\n            var l = lineList[i].elements.length;\r\n\r\n            if (l !== 0 && lineList[i].br === false) {\r\n                var br = document.createElement(\"br\");\r\n\r\n                var lastnode = lineList[i].elements[l - 1].node;\r\n\r\n                lastnode.parentElement.insertBefore(br, lastnode.nextSibling);\r\n            }\r\n\r\n        }\r\n\r\n    }\r\n\r\n    function applyTextEmphasis(lineList, context) {\r\n\r\n        /* supports \"outside\" only */\r\n\r\n        for (var i = 0; i < lineList.length; i++) {\r\n\r\n            for (var j = 0; j < lineList[i].te.length; j++) {\r\n\r\n                /* skip if position already set */\r\n\r\n                if (lineList[i].te[j].style.textEmphasisPosition &&\r\n                    lineList[i].te[j].style.textEmphasisPosition !== \"none\")\r\n                    continue;\r\n\r\n                var pos;\r\n\r\n                if (context.bpd === \"tb\") {\r\n\r\n                    pos = (i === 0) ? \"left over\" : \"left under\";\r\n\r\n\r\n                } else {\r\n\r\n                    if (context.bpd === \"rl\") {\r\n\r\n                        pos = (i === 0) ? \"right under\" : \"left under\";\r\n\r\n                    } else {\r\n\r\n                        pos = (i === 0) ? \"left under\" : \"right under\";\r\n\r\n                    }\r\n\r\n                }\r\n\r\n                lineList[i].te[j].style.textEmphasisPosition = pos;\r\n\r\n            }\r\n\r\n        }\r\n\r\n    }\r\n\r\n    function applyRubyPosition(lineList, context) {\r\n\r\n        for (var i = 0; i < lineList.length; i++) {\r\n\r\n            for (var j = 0; j < lineList[i].rbc.length; j++) {\r\n\r\n                /* skip if ruby-position already set */\r\n\r\n                if (lineList[i].rbc[j].style.rubyPosition)\r\n                    continue;\r\n\r\n                var pos;\r\n\r\n                if (context.bpd === \"tb\") {\r\n\r\n                    pos = (i === 0) ? \"over\" : \"under\";\r\n\r\n\r\n                } else {\r\n\r\n                    if (context.bpd === \"rl\") {\r\n\r\n                        pos = (i === 0) ? \"over\" : \"under\";\r\n\r\n                    } else {\r\n\r\n                        pos = (i === 0) ? \"under\" : \"over\";\r\n\r\n                    }\r\n\r\n                }\r\n\r\n                lineList[i].rbc[j].style.rubyPosition = pos;\r\n\r\n            }\r\n\r\n        }\r\n\r\n    }\r\n\r\n    function applyRubyReserve(lineList, context) {\r\n\r\n        for (var i = 0; i < lineList.length; i++) {\r\n\r\n            var ruby = document.createElement(\"ruby\");\r\n\r\n            var rb = document.createElement(\"rb\");\r\n            rb.textContent = \"\\u200B\";\r\n\r\n            ruby.appendChild(rb);\r\n\r\n            var rt1;\r\n            var rt2;\r\n\r\n            var fs = context.rubyReserve[1].toUsedLength(context.w, context.h) + \"px\";\r\n\r\n            if (context.rubyReserve[0] === \"both\") {\r\n\r\n                rt1 = document.createElement(\"rtc\");\r\n                rt1.style.rubyPosition = \"under\";\r\n                rt1.textContent = \"\\u200B\";\r\n                rt1.style.fontSize = fs;\r\n\r\n                rt2 = document.createElement(\"rtc\");\r\n                rt2.style.rubyPosition = \"over\";\r\n                rt2.textContent = \"\\u200B\";\r\n                rt2.style.fontSize = fs;\r\n\r\n                ruby.appendChild(rt1);\r\n                ruby.appendChild(rt2);\r\n\r\n            } else {\r\n\r\n                rt1 = document.createElement(\"rtc\");\r\n                rt1.textContent = \"\\u200B\";\r\n                rt1.style.fontSize = fs;\r\n\r\n                if (context.rubyReserve[0] === \"after\" || (context.rubyReserve[0] === \"outside\" && i > 0)) {\r\n\r\n                    rt1.style.rubyPosition = (context.bpd === \"tb\" || context.bpd === \"rl\") ? \"under\" : \"over\";\r\n\r\n                } else {\r\n\r\n                    rt1.style.rubyPosition = (context.bpd === \"tb\" || context.bpd === \"rl\") ? \"over\" : \"under\";\r\n\r\n                }\r\n\r\n                ruby.appendChild(rt1);\r\n\r\n            }\r\n\r\n            var e = lineList[i].elements[0].node.parentElement.insertBefore(\r\n                    ruby,\r\n                    lineList[i].elements[0].node\r\n                    );\r\n\r\n        }\r\n\r\n    }\r\n\r\n    function applyFillLineGap(lineList, par_before, par_after, context) {\r\n\r\n        /* positive for BPD = lr and tb, negative for BPD = rl */\r\n        var s = Math.sign(par_after - par_before);\r\n\r\n        for (var i = 0; i <= lineList.length; i++) {\r\n\r\n            /* compute frontier between lines */\r\n\r\n            var frontier;\r\n\r\n            if (i === 0) {\r\n\r\n                frontier = par_before;\r\n\r\n            } else if (i === lineList.length) {\r\n\r\n                frontier = par_after;\r\n\r\n            } else {\r\n\r\n                frontier = (lineList[i].before + lineList[i - 1].after) / 2;\r\n\r\n            }\r\n\r\n            /* padding amount */\r\n\r\n            var pad;\r\n\r\n            /* current element */\r\n\r\n            var e;\r\n\r\n            /* before line */\r\n\r\n            if (i > 0) {\r\n\r\n                for (var j = 0; j < lineList[i - 1].elements.length; j++) {\r\n\r\n                    if (lineList[i - 1].elements[j].bgcolor === null)\r\n                        continue;\r\n\r\n                    e = lineList[i - 1].elements[j];\r\n\r\n                    if (s * (e.after - frontier) < 0) {\r\n\r\n                        pad = Math.ceil(Math.abs(frontier - e.after)) + \"px\";\r\n\r\n                        e.node.style.backgroundColor = e.bgcolor;\r\n\r\n                        if (context.bpd === \"lr\") {\r\n\r\n                            e.node.style.paddingRight = pad;\r\n\r\n\r\n                        } else if (context.bpd === \"rl\") {\r\n\r\n                            e.node.style.paddingLeft = pad;\r\n\r\n                        } else if (context.bpd === \"tb\") {\r\n\r\n                            e.node.style.paddingBottom = pad;\r\n\r\n                        }\r\n\r\n                    }\r\n\r\n                }\r\n\r\n            }\r\n\r\n            /* after line */\r\n\r\n            if (i < lineList.length) {\r\n\r\n                for (var k = 0; k < lineList[i].elements.length; k++) {\r\n\r\n                    e = lineList[i].elements[k];\r\n\r\n                    if (e.bgcolor === null)\r\n                        continue;\r\n\r\n                    if (s * (e.before - frontier) > 0) {\r\n\r\n                        pad = Math.ceil(Math.abs(e.before - frontier)) + \"px\";\r\n\r\n                        e.node.style.backgroundColor = e.bgcolor;\r\n\r\n                        if (context.bpd === \"lr\") {\r\n\r\n                            e.node.style.paddingLeft = pad;\r\n\r\n\r\n                        } else if (context.bpd === \"rl\") {\r\n\r\n                            e.node.style.paddingRight = pad;\r\n\r\n\r\n                        } else if (context.bpd === \"tb\") {\r\n\r\n                            e.node.style.paddingTop = pad;\r\n\r\n                        }\r\n\r\n                    }\r\n\r\n                }\r\n\r\n            }\r\n\r\n        }\r\n\r\n    }\r\n\r\n    function RegionPBuffer(id, lineList) {\r\n\r\n        this.id = id;\r\n\r\n        this.plist = lineList;\r\n\r\n    }\r\n\r\n    function pruneEmptySpans(element) {\r\n\r\n        var child = element.firstChild;\r\n\r\n        while (child) {\r\n\r\n            var nchild = child.nextSibling;\r\n\r\n            if (child.nodeType === Node.ELEMENT_NODE &&\r\n                    child.localName === 'span') {\r\n\r\n                pruneEmptySpans(child);\r\n\r\n                if (child.childElementCount === 0 &&\r\n                        child.textContent.length === 0) {\r\n\r\n                    element.removeChild(child);\r\n\r\n                }\r\n            }\r\n\r\n            child = nchild;\r\n        }\r\n\r\n    }\r\n\r\n    function rect2edges(rect, context) {\r\n\r\n        var edges = {before: null, after: null, start: null, end: null};\r\n\r\n        if (context.bpd === \"tb\") {\r\n\r\n            edges.before = rect.top;\r\n            edges.after = rect.bottom;\r\n\r\n            if (context.ipd === \"lr\") {\r\n\r\n                edges.start = rect.left;\r\n                edges.end = rect.right;\r\n\r\n            } else {\r\n\r\n                edges.start = rect.right;\r\n                edges.end = rect.left;\r\n            }\r\n\r\n        } else if (context.bpd === \"lr\") {\r\n\r\n            edges.before = rect.left;\r\n            edges.after = rect.right;\r\n            edges.start = rect.top;\r\n            edges.end = rect.bottom;\r\n\r\n        } else if (context.bpd === \"rl\") {\r\n\r\n            edges.before = rect.right;\r\n            edges.after = rect.left;\r\n            edges.start = rect.top;\r\n            edges.end = rect.bottom;\r\n\r\n        }\r\n\r\n        return edges;\r\n\r\n    }\r\n\r\n    function constructLineList(context, element, llist, bgcolor) {\r\n\r\n        if (element.localName === \"rt\" || element.localName === \"rtc\") {\r\n\r\n            /* skip ruby annotations */\r\n\r\n            return;\r\n\r\n        }\r\n\r\n        var curbgcolor = element.style.backgroundColor || bgcolor;\r\n\r\n        if (element.childElementCount === 0) {\r\n\r\n            if (element.localName === 'span' || element.localName === 'rb') {\r\n\r\n                var r = element.getBoundingClientRect();\r\n\r\n                /* skip if span is not displayed */\r\n\r\n                if (r.height === 0 || r.width === 0)\r\n                    return;\r\n\r\n                var edges = rect2edges(r, context);\r\n\r\n                if (llist.length === 0 ||\r\n                        (!isSameLine(edges.before, edges.after, llist[llist.length - 1].before, llist[llist.length - 1].after))\r\n                        ) {\r\n\r\n                    llist.push({\r\n                        before: edges.before,\r\n                        after: edges.after,\r\n                        start: edges.start,\r\n                        end: edges.end,\r\n                        start_elem: 0,\r\n                        end_elem: 0,\r\n                        elements: [],\r\n                        rbc: [],\r\n                        te: [],\r\n                        text: \"\",\r\n                        br: false\r\n                    });\r\n\r\n                } else {\r\n\r\n                    /* positive for BPD = lr and tb, negative for BPD = rl */\r\n                    var bpd_dir = Math.sign(edges.after - edges.before);\r\n\r\n                    /* positive for IPD = lr and tb, negative for IPD = rl */\r\n                    var ipd_dir = Math.sign(edges.end - edges.start);\r\n\r\n                    /* check if the line height has increased */\r\n\r\n                    if (bpd_dir * (edges.before - llist[llist.length - 1].before) < 0) {\r\n                        llist[llist.length - 1].before = edges.before;\r\n                    }\r\n\r\n                    if (bpd_dir * (edges.after - llist[llist.length - 1].after) > 0) {\r\n                        llist[llist.length - 1].after = edges.after;\r\n                    }\r\n\r\n                    if (ipd_dir * (edges.start - llist[llist.length - 1].start) < 0) {\r\n                        llist[llist.length - 1].start = edges.start;\r\n                        llist[llist.length - 1].start_elem = llist[llist.length - 1].elements.length;\r\n                    }\r\n\r\n                    if (ipd_dir * (edges.end - llist[llist.length - 1].end) > 0) {\r\n                        llist[llist.length - 1].end = edges.end;\r\n                        llist[llist.length - 1].end_elem = llist[llist.length - 1].elements.length;\r\n                    }\r\n\r\n                }\r\n\r\n                llist[llist.length - 1].text += element.textContent;\r\n\r\n                llist[llist.length - 1].elements.push(\r\n                        {\r\n                            node: element,\r\n                            bgcolor: curbgcolor,\r\n                            before: edges.before,\r\n                            after: edges.after\r\n                        }\r\n                );\r\n\r\n            } else if (element.localName === 'br' && llist.length !== 0) {\r\n\r\n                llist[llist.length - 1].br = true;\r\n\r\n            }\r\n\r\n        } else {\r\n\r\n            var child = element.firstChild;\r\n\r\n            while (child) {\r\n\r\n                if (child.nodeType === Node.ELEMENT_NODE) {\r\n\r\n                    constructLineList(context, child, llist, curbgcolor);\r\n\r\n                    if (child.localName === 'ruby' || child.localName === 'rtc') {\r\n\r\n                        /* remember non-empty ruby and rtc elements so that tts:rubyPosition can be applied */\r\n\r\n                        if (llist.length > 0) {\r\n\r\n                            llist[llist.length - 1].rbc.push(child);\r\n\r\n                        }\r\n\r\n                    } else if (child.localName === 'span' &&\r\n                            child.style.textEmphasisStyle &&\r\n                            child.style.textEmphasisStyle !== \"none\") {\r\n\r\n                        /* remember non-empty span elements with textEmphasis */\r\n\r\n                        if (llist.length > 0) {\r\n\r\n                            llist[llist.length - 1].te.push(child);\r\n\r\n                        }\r\n\r\n                    }\r\n                    \r\n\r\n                }\r\n\r\n                child = child.nextSibling;\r\n            }\r\n        }\r\n\r\n    }\r\n\r\n    function isSameLine(before1, after1, before2, after2) {\r\n\r\n        return ((after1 < after2) && (before1 > before2)) || ((after2 <= after1) && (before2 >= before1));\r\n\r\n    }\r\n\r\n    function HTMLStylingMapDefintion(qName, mapFunc) {\r\n        this.qname = qName;\r\n        this.map = mapFunc;\r\n    }\r\n\r\n    var STYLING_MAP_DEFS = [\r\n\r\n        new HTMLStylingMapDefintion(\r\n                \"http://www.w3.org/ns/ttml#styling backgroundColor\",\r\n                function (context, dom_element, isd_element, attr) {\r\n\r\n                    /* skip if transparent */\r\n                    if (attr[3] === 0)\r\n                        return;\r\n\r\n                    dom_element.style.backgroundColor = \"rgba(\" +\r\n                            attr[0].toString() + \",\" +\r\n                            attr[1].toString() + \",\" +\r\n                            attr[2].toString() + \",\" +\r\n                            (attr[3] / 255).toString() +\r\n                            \")\";\r\n                }\r\n        ),\r\n        new HTMLStylingMapDefintion(\r\n                \"http://www.w3.org/ns/ttml#styling color\",\r\n                function (context, dom_element, isd_element, attr) {\r\n                    dom_element.style.color = \"rgba(\" +\r\n                            attr[0].toString() + \",\" +\r\n                            attr[1].toString() + \",\" +\r\n                            attr[2].toString() + \",\" +\r\n                            (attr[3] / 255).toString() +\r\n                            \")\";\r\n                }\r\n        ),\r\n        new HTMLStylingMapDefintion(\r\n                \"http://www.w3.org/ns/ttml#styling direction\",\r\n                function (context, dom_element, isd_element, attr) {\r\n                    dom_element.style.direction = attr;\r\n                }\r\n        ),\r\n        new HTMLStylingMapDefintion(\r\n                \"http://www.w3.org/ns/ttml#styling display\",\r\n                function (context, dom_element, isd_element, attr) {}\r\n        ),\r\n        new HTMLStylingMapDefintion(\r\n                \"http://www.w3.org/ns/ttml#styling displayAlign\",\r\n                function (context, dom_element, isd_element, attr) {\r\n\r\n                    /* see https://css-tricks.com/snippets/css/a-guide-to-flexbox/ */\r\n\r\n                    /* TODO: is this affected by writing direction? */\r\n\r\n                    dom_element.style.display = \"flex\";\r\n                    dom_element.style.flexDirection = \"column\";\r\n\r\n\r\n                    if (attr === \"before\") {\r\n\r\n                        dom_element.style.justifyContent = \"flex-start\";\r\n\r\n                    } else if (attr === \"center\") {\r\n\r\n                        dom_element.style.justifyContent = \"center\";\r\n\r\n                    } else if (attr === \"after\") {\r\n\r\n                        dom_element.style.justifyContent = \"flex-end\";\r\n                    }\r\n\r\n                }\r\n        ),\r\n        new HTMLStylingMapDefintion(\r\n                \"http://www.w3.org/ns/ttml#styling extent\",\r\n                function (context, dom_element, isd_element, attr) {\r\n                    /* TODO: this is super ugly */\r\n\r\n                    context.regionH = attr.h.toUsedLength(context.w, context.h);\r\n                    context.regionW = attr.w.toUsedLength(context.w, context.h);\r\n\r\n                    /* \r\n                     * CSS height/width are measured against the content rectangle,\r\n                     * whereas TTML height/width include padding\r\n                     */\r\n\r\n                    var hdelta = 0;\r\n                    var wdelta = 0;\r\n\r\n                    var p = isd_element.styleAttrs[\"http://www.w3.org/ns/ttml#styling padding\"];\r\n\r\n                    if (!p) {\r\n\r\n                        /* error */\r\n\r\n                    } else {\r\n\r\n                        hdelta = p[0].toUsedLength(context.w, context.h) + p[2].toUsedLength(context.w, context.h);\r\n                        wdelta = p[1].toUsedLength(context.w, context.h) + p[3].toUsedLength(context.w, context.h);\r\n\r\n                    }\r\n\r\n                    dom_element.style.height = (context.regionH - hdelta) + \"px\";\r\n                    dom_element.style.width = (context.regionW - wdelta) + \"px\";\r\n\r\n                }\r\n        ),\r\n        new HTMLStylingMapDefintion(\r\n                \"http://www.w3.org/ns/ttml#styling fontFamily\",\r\n                function (context, dom_element, isd_element, attr) {\r\n\r\n                    var rslt = [];\r\n\r\n                    /* per IMSC1 */\r\n\r\n                    for (var i in attr) {\r\n\r\n                        if (attr[i] === \"monospaceSerif\") {\r\n\r\n                            rslt.push(\"Courier New\");\r\n                            rslt.push('\"Liberation Mono\"');\r\n                            rslt.push(\"Courier\");\r\n                            rslt.push(\"monospace\");\r\n\r\n                        } else if (attr[i] === \"proportionalSansSerif\") {\r\n\r\n                            rslt.push(\"Arial\");\r\n                            rslt.push(\"Helvetica\");\r\n                            rslt.push('\"Liberation Sans\"');\r\n                            rslt.push(\"sans-serif\");\r\n\r\n                        } else if (attr[i] === \"monospace\") {\r\n\r\n                            rslt.push(\"monospace\");\r\n\r\n                        } else if (attr[i] === \"sansSerif\") {\r\n\r\n                            rslt.push(\"sans-serif\");\r\n\r\n                        } else if (attr[i] === \"serif\") {\r\n\r\n                            rslt.push(\"serif\");\r\n\r\n                        } else if (attr[i] === \"monospaceSansSerif\") {\r\n\r\n                            rslt.push(\"Consolas\");\r\n                            rslt.push(\"monospace\");\r\n\r\n                        } else if (attr[i] === \"proportionalSerif\") {\r\n\r\n                            rslt.push(\"serif\");\r\n\r\n                        } else {\r\n\r\n                            rslt.push(attr[i]);\r\n\r\n                        }\r\n\r\n                    }\r\n\r\n                    dom_element.style.fontFamily = rslt.join(\",\");\r\n                }\r\n        ),\r\n\r\n        new HTMLStylingMapDefintion(\r\n                \"http://www.w3.org/ns/ttml#styling shear\",\r\n                function (context, dom_element, isd_element, attr) {\r\n\r\n                    /* return immediately if tts:shear is 0% since CSS transforms are not inherited*/\r\n\r\n                    if (attr === 0)\r\n                        return;\r\n\r\n                    var angle = attr * -0.9;\r\n\r\n                    /* context.writingMode is needed since writing mode is not inherited and sets the inline progression */\r\n\r\n                    if (context.bpd === \"tb\") {\r\n\r\n                        dom_element.style.transform = \"skewX(\" + angle + \"deg)\";\r\n\r\n                    } else {\r\n\r\n                        dom_element.style.transform = \"skewY(\" + angle + \"deg)\";\r\n\r\n                    }\r\n\r\n                }\r\n        ),\r\n\r\n        new HTMLStylingMapDefintion(\r\n                \"http://www.w3.org/ns/ttml#styling fontSize\",\r\n                function (context, dom_element, isd_element, attr) {\r\n                    dom_element.style.fontSize = attr.toUsedLength(context.w, context.h) + \"px\";\r\n                }\r\n        ),\r\n\r\n        new HTMLStylingMapDefintion(\r\n                \"http://www.w3.org/ns/ttml#styling fontStyle\",\r\n                function (context, dom_element, isd_element, attr) {\r\n                    dom_element.style.fontStyle = attr;\r\n                }\r\n        ),\r\n        new HTMLStylingMapDefintion(\r\n                \"http://www.w3.org/ns/ttml#styling fontWeight\",\r\n                function (context, dom_element, isd_element, attr) {\r\n                    dom_element.style.fontWeight = attr;\r\n                }\r\n        ),\r\n        new HTMLStylingMapDefintion(\r\n                \"http://www.w3.org/ns/ttml#styling lineHeight\",\r\n                function (context, dom_element, isd_element, attr) {\r\n                    if (attr === \"normal\") {\r\n\r\n                        dom_element.style.lineHeight = \"normal\";\r\n\r\n                    } else {\r\n\r\n                        dom_element.style.lineHeight = attr.toUsedLength(context.w, context.h) + \"px\";\r\n                    }\r\n                }\r\n        ),\r\n        new HTMLStylingMapDefintion(\r\n                \"http://www.w3.org/ns/ttml#styling opacity\",\r\n                function (context, dom_element, isd_element, attr) {\r\n                    dom_element.style.opacity = attr;\r\n                }\r\n        ),\r\n        new HTMLStylingMapDefintion(\r\n                \"http://www.w3.org/ns/ttml#styling origin\",\r\n                function (context, dom_element, isd_element, attr) {\r\n                    dom_element.style.top = attr.h.toUsedLength(context.w, context.h) + \"px\";\r\n                    dom_element.style.left = attr.w.toUsedLength(context.w, context.h) + \"px\";\r\n                }\r\n        ),\r\n        new HTMLStylingMapDefintion(\r\n                \"http://www.w3.org/ns/ttml#styling overflow\",\r\n                function (context, dom_element, isd_element, attr) {\r\n                    dom_element.style.overflow = attr;\r\n                }\r\n        ),\r\n        new HTMLStylingMapDefintion(\r\n                \"http://www.w3.org/ns/ttml#styling padding\",\r\n                function (context, dom_element, isd_element, attr) {\r\n\r\n                    /* attr: top,left,bottom,right*/\r\n\r\n                    /* style: top right bottom left*/\r\n\r\n                    var rslt = [];\r\n\r\n                    rslt[0] = attr[0].toUsedLength(context.w, context.h) + \"px\";\r\n                    rslt[1] = attr[3].toUsedLength(context.w, context.h) + \"px\";\r\n                    rslt[2] = attr[2].toUsedLength(context.w, context.h) + \"px\";\r\n                    rslt[3] = attr[1].toUsedLength(context.w, context.h) + \"px\";\r\n\r\n                    dom_element.style.padding = rslt.join(\" \");\r\n                }\r\n        ),\r\n        new HTMLStylingMapDefintion(\r\n                \"http://www.w3.org/ns/ttml#styling position\",\r\n                function (context, dom_element, isd_element, attr) {\r\n                    dom_element.style.top = attr.h.toUsedLength(context.w, context.h) + \"px\";\r\n                    dom_element.style.left = attr.w.toUsedLength(context.w, context.h) + \"px\";\r\n                }\r\n        ),\r\n        new HTMLStylingMapDefintion(\r\n                \"http://www.w3.org/ns/ttml#styling rubyAlign\",\r\n                function (context, dom_element, isd_element, attr) {\r\n                    dom_element.style.rubyAlign = attr;\r\n                }\r\n        ),\r\n        new HTMLStylingMapDefintion(\r\n                \"http://www.w3.org/ns/ttml#styling rubyPosition\",\r\n                function (context, dom_element, isd_element, attr) {\r\n\r\n                    /* skip if \"outside\", which is handled by applyRubyPosition() */\r\n\r\n                    if (attr === \"before\" || attr === \"after\") {\r\n\r\n                        var pos;\r\n\r\n                        if (context.bpd === \"tb\") {\r\n\r\n                            pos = (attr === \"before\") ? \"over\" : \"under\";\r\n\r\n\r\n                        } else {\r\n\r\n                            if (context.bpd === \"rl\") {\r\n\r\n                                pos = (attr === \"before\") ? \"over\" : \"under\";\r\n\r\n                            } else {\r\n\r\n                                pos = (attr === \"before\") ? \"under\" : \"over\";\r\n\r\n                            }\r\n\r\n                        }\r\n\r\n                        /* apply position to the parent dom_element, i.e. ruby or rtc */\r\n\r\n                        dom_element.parentElement.style.rubyPosition = pos;\r\n                    }\r\n                }\r\n        ),\r\n        new HTMLStylingMapDefintion(\r\n                \"http://www.w3.org/ns/ttml#styling showBackground\",\r\n                null\r\n                ),\r\n        new HTMLStylingMapDefintion(\r\n                \"http://www.w3.org/ns/ttml#styling textAlign\",\r\n                function (context, dom_element, isd_element, attr) {\r\n\r\n                    var ta;\r\n                    var dir = isd_element.styleAttrs[imscStyles.byName.direction.qname];\r\n\r\n                    /* handle UAs that do not understand start or end */\r\n\r\n                    if (attr === \"start\") {\r\n\r\n                        ta = (dir === \"rtl\") ? \"right\" : \"left\";\r\n\r\n                    } else if (attr === \"end\") {\r\n\r\n                        ta = (dir === \"rtl\") ? \"left\" : \"right\";\r\n\r\n                    } else {\r\n\r\n                        ta = attr;\r\n\r\n                    }\r\n\r\n                    dom_element.style.textAlign = ta;\r\n\r\n                }\r\n        ),\r\n        new HTMLStylingMapDefintion(\r\n                \"http://www.w3.org/ns/ttml#styling textDecoration\",\r\n                function (context, dom_element, isd_element, attr) {\r\n                    dom_element.style.textDecoration = attr.join(\" \").replace(\"lineThrough\", \"line-through\");\r\n                }\r\n        ),\r\n        new HTMLStylingMapDefintion(\r\n                \"http://www.w3.org/ns/ttml#styling textOutline\",\r\n                function (context, dom_element, isd_element, attr) {\r\n\r\n                    /* defer to tts:textShadow */\r\n                }\r\n        ),\r\n        new HTMLStylingMapDefintion(\r\n                \"http://www.w3.org/ns/ttml#styling textShadow\",\r\n                function (context, dom_element, isd_element, attr) {\r\n\r\n                    var txto = isd_element.styleAttrs[imscStyles.byName.textOutline.qname];\r\n\r\n                    if (attr === \"none\" && txto === \"none\") {\r\n\r\n                        dom_element.style.textShadow = \"\";\r\n\r\n                    } else {\r\n\r\n                        var s = [];\r\n\r\n                        if (txto !== \"none\") {\r\n\r\n                            /* emulate text outline */\r\n\r\n                            s.push(\r\n                                    \"rgba(\" +\r\n                                    txto.color[0].toString() + \",\" +\r\n                                    txto.color[1].toString() + \",\" +\r\n                                    txto.color[2].toString() + \",\" +\r\n                                    (txto.color[3] / 255).toString() +\r\n                                    \")\" + \" 0px 0px \" +\r\n                                    txto.thickness.toUsedLength(context.w, context.h) + \"px\"\r\n                                    );\r\n\r\n                        }\r\n\r\n                        /* add text shadow */\r\n\r\n                        if (attr !== \"none\") {\r\n\r\n                            for (var i in attr) {\r\n\r\n\r\n                                s.push(attr[i].x_off.toUsedLength(context.w, context.h) + \"px \" +\r\n                                        attr[i].y_off.toUsedLength(context.w, context.h) + \"px \" +\r\n                                        attr[i].b_radius.toUsedLength(context.w, context.h) + \"px \" +\r\n                                        \"rgba(\" +\r\n                                        attr[i].color[0].toString() + \",\" +\r\n                                        attr[i].color[1].toString() + \",\" +\r\n                                        attr[i].color[2].toString() + \",\" +\r\n                                        (attr[i].color[3] / 255).toString() +\r\n                                        \")\"\r\n                                        );\r\n\r\n                            }\r\n\r\n                        }\r\n\r\n                        dom_element.style.textShadow = s.join(\",\");\r\n\r\n                    }\r\n                }\r\n        ),\r\n        new HTMLStylingMapDefintion(\r\n                \"http://www.w3.org/ns/ttml#styling textCombine\",\r\n                function (context, dom_element, isd_element, attr) {\r\n\r\n                    dom_element.style.textCombineUpright = attr.join(\" \");\r\n\r\n                }\r\n        ),\r\n        new HTMLStylingMapDefintion(\r\n                \"http://www.w3.org/ns/ttml#styling textEmphasis\",\r\n                function (context, dom_element, isd_element, attr) {\r\n\r\n                    /* ignore color (not used in IMSC 1.1) */\r\n\r\n                    if (attr.style === \"none\") {\r\n\r\n                        dom_element.style.textEmphasisStyle = \"none\";\r\n\r\n                        /* no need to set position, so return */\r\n                        \r\n                        return;\r\n                    \r\n                    } else if (attr.style === \"auto\") {\r\n\r\n                        dom_element.style.textEmphasisStyle = \"filled\";\r\n                    \r\n                    } else {\r\n\r\n                        dom_element.style.textEmphasisStyle =  attr.style + \" \" + attr.symbol;\r\n                    }\r\n\r\n                    /* ignore \"outside\" position (set in postprocessing) */\r\n\r\n                    if (attr.position === \"before\" || attr.position === \"after\") {\r\n\r\n                        var pos;\r\n\r\n                        if (context.bpd === \"tb\") {\r\n\r\n                            pos = (attr.position === \"before\") ? \"left over\" : \"left under\";\r\n\r\n\r\n                        } else {\r\n\r\n                            if (context.bpd === \"rl\") {\r\n\r\n                                pos = (attr.position === \"before\") ? \"right under\" : \"left under\";\r\n\r\n                            } else {\r\n\r\n                                pos = (attr.position === \"before\") ? \"left under\" : \"right under\";\r\n\r\n                            }\r\n\r\n                        }\r\n\r\n                        dom_element.style.textEmphasisPosition = pos;\r\n                    }\r\n                }\r\n        ),\r\n        new HTMLStylingMapDefintion(\r\n                \"http://www.w3.org/ns/ttml#styling unicodeBidi\",\r\n                function (context, dom_element, isd_element, attr) {\r\n\r\n                    var ub;\r\n\r\n                    if (attr === 'bidiOverride') {\r\n                        ub = \"bidi-override\";\r\n                    } else {\r\n                        ub = attr;\r\n                    }\r\n\r\n                    dom_element.style.unicodeBidi = ub;\r\n                }\r\n        ),\r\n        new HTMLStylingMapDefintion(\r\n                \"http://www.w3.org/ns/ttml#styling visibility\",\r\n                function (context, dom_element, isd_element, attr) {\r\n                    dom_element.style.visibility = attr;\r\n                }\r\n        ),\r\n        new HTMLStylingMapDefintion(\r\n                \"http://www.w3.org/ns/ttml#styling wrapOption\",\r\n                function (context, dom_element, isd_element, attr) {\r\n\r\n                    if (attr === \"wrap\") {\r\n\r\n                        if (isd_element.space === \"preserve\") {\r\n                            dom_element.style.whiteSpace = \"pre-wrap\";\r\n                        } else {\r\n                            dom_element.style.whiteSpace = \"normal\";\r\n                        }\r\n\r\n                    } else {\r\n\r\n                        if (isd_element.space === \"preserve\") {\r\n\r\n                            dom_element.style.whiteSpace = \"pre\";\r\n\r\n                        } else {\r\n                            dom_element.style.whiteSpace = \"noWrap\";\r\n                        }\r\n\r\n                    }\r\n\r\n                }\r\n        ),\r\n        new HTMLStylingMapDefintion(\r\n                \"http://www.w3.org/ns/ttml#styling writingMode\",\r\n                function (context, dom_element, isd_element, attr) {\r\n                    if (attr === \"lrtb\" || attr === \"lr\") {\r\n\r\n                        context.writingMode = \"horizontal-tb\";\r\n\r\n                    } else if (attr === \"rltb\" || attr === \"rl\") {\r\n\r\n                        context.writingMode = \"horizontal-tb\";\r\n\r\n                    } else if (attr === \"tblr\") {\r\n\r\n                        context.writingMode = \"vertical-lr\";\r\n\r\n                    } else if (attr === \"tbrl\" || attr === \"tb\") {\r\n\r\n                        context.writingMode = \"vertical-rl\";\r\n\r\n                    }\r\n\r\n                    dom_element.style.writingMode = context.writingMode;\r\n                }\r\n        ),\r\n        new HTMLStylingMapDefintion(\r\n                \"http://www.w3.org/ns/ttml#styling zIndex\",\r\n                function (context, dom_element, isd_element, attr) {\r\n                    dom_element.style.zIndex = attr;\r\n                }\r\n        ),\r\n        new HTMLStylingMapDefintion(\r\n                \"http://www.w3.org/ns/ttml/profile/imsc1#styling forcedDisplay\",\r\n                function (context, dom_element, isd_element, attr) {\r\n\r\n                    if (context.displayForcedOnlyMode && attr === false) {\r\n                        dom_element.style.visibility = \"hidden\";\r\n                    }\r\n\r\n                }\r\n        )\r\n    ];\r\n\r\n    var STYLMAP_BY_QNAME = {};\r\n\r\n    for (var i in STYLING_MAP_DEFS) {\r\n\r\n        STYLMAP_BY_QNAME[STYLING_MAP_DEFS[i].qname] = STYLING_MAP_DEFS[i];\r\n    }\r\n\r\n    function reportError(errorHandler, msg) {\r\n\r\n        if (errorHandler && errorHandler.error && errorHandler.error(msg))\r\n            throw msg;\r\n\r\n    }\r\n\r\n})(typeof exports === 'undefined' ? this.imscHTML = {} : exports,\r\n        typeof imscNames === 'undefined' ? require(\"./names\") : imscNames,\r\n        typeof imscStyles === 'undefined' ? require(\"./styles\") : imscStyles,\r\n        typeof imscUtils === 'undefined' ? require(\"./utils\") : imscUtils);","\"use strict\";Object.defineProperty(exports,\"__esModule\",{value:true});function _classCallCheck(instance,Constructor){if(!(instance instanceof Constructor)){throw new TypeError(\"Cannot call a class as a function\");}}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n *//**\n * @class\n * @ignore\n */var AdaptationSet=function AdaptationSet(){_classCallCheck(this,AdaptationSet);this.period=null;this.index=-1;this.type=null;};exports.default=AdaptationSet;\n//# sourceMappingURL=AdaptationSet.js.map\n","\"use strict\";Object.defineProperty(exports,\"__esModule\",{value:true});/*\n Copyright 2011-2013 Abdulla Abdurakhmanov\n Original sources are available at https://code.google.com/p/x2js/\n\n Licensed under the Apache License, Version 2.0 (the \"License\");\n you may not use this file except in compliance with the License.\n You may obtain a copy of the License at\n\n http://www.apache.org/licenses/LICENSE-2.0\n\n Unless required by applicable law or agreed to in writing, software\n distributed under the License is distributed on an \"AS IS\" BASIS,\n WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n See the License for the specific language governing permissions and\n limitations under the License.\n *//*\n  Further modified for dashjs to:\n  - keep track of children nodes in order in attribute __children.\n  - add type conversion matchers\n  - re-add ignoreRoot\n  - allow zero-length attributePrefix\n  - don't add white-space text nodes\n  - remove explicit RequireJS support\n*/function X2JS(config){'use strict';var VERSION=\"1.2.0\";config=config||{};initConfigDefaults();initRequiredPolyfills();function initConfigDefaults(){if(config.escapeMode===undefined){config.escapeMode=true;}if(config.attributePrefix===undefined){config.attributePrefix=\"_\";}config.arrayAccessForm=config.arrayAccessForm||\"none\";config.emptyNodeForm=config.emptyNodeForm||\"text\";if(config.enableToStringFunc===undefined){config.enableToStringFunc=true;}config.arrayAccessFormPaths=config.arrayAccessFormPaths||[];if(config.skipEmptyTextNodesForObj===undefined){config.skipEmptyTextNodesForObj=true;}if(config.stripWhitespaces===undefined){config.stripWhitespaces=true;}config.datetimeAccessFormPaths=config.datetimeAccessFormPaths||[];if(config.useDoubleQuotes===undefined){config.useDoubleQuotes=false;}config.xmlElementsFilter=config.xmlElementsFilter||[];config.jsonPropertiesFilter=config.jsonPropertiesFilter||[];if(config.keepCData===undefined){config.keepCData=false;}if(config.ignoreRoot===undefined){config.ignoreRoot=false;}}var DOMNodeTypes={ELEMENT_NODE:1,TEXT_NODE:3,CDATA_SECTION_NODE:4,COMMENT_NODE:8,DOCUMENT_NODE:9};function initRequiredPolyfills(){}function getNodeLocalName(node){var nodeLocalName=node.localName;if(nodeLocalName==null)// Yeah, this is IE!!\nnodeLocalName=node.baseName;if(nodeLocalName==null||nodeLocalName==\"\")// ==\"\" is IE too\nnodeLocalName=node.nodeName;return nodeLocalName;}function getNodePrefix(node){return node.prefix;}function escapeXmlChars(str){if(typeof str==\"string\")return str.replace(/&/g,'&amp;').replace(/</g,'&lt;').replace(/>/g,'&gt;').replace(/\"/g,'&quot;').replace(/'/g,'&apos;');else return str;}function unescapeXmlChars(str){return str.replace(/&lt;/g,'<').replace(/&gt;/g,'>').replace(/&quot;/g,'\"').replace(/&apos;/g,\"'\").replace(/&amp;/g,'&');}function checkInStdFiltersArrayForm(stdFiltersArrayForm,obj,name,path){var idx=0;for(;idx<stdFiltersArrayForm.length;idx++){var filterPath=stdFiltersArrayForm[idx];if(typeof filterPath===\"string\"){if(filterPath==path)break;}else if(filterPath instanceof RegExp){if(filterPath.test(path))break;}else if(typeof filterPath===\"function\"){if(filterPath(obj,name,path))break;}}return idx!=stdFiltersArrayForm.length;}function toArrayAccessForm(obj,childName,path){switch(config.arrayAccessForm){case\"property\":if(!(obj[childName]instanceof Array))obj[childName+\"_asArray\"]=[obj[childName]];else obj[childName+\"_asArray\"]=obj[childName];break;/*case \"none\":\n                break;*/}if(!(obj[childName]instanceof Array)&&config.arrayAccessFormPaths.length>0){if(checkInStdFiltersArrayForm(config.arrayAccessFormPaths,obj,childName,path)){obj[childName]=[obj[childName]];}}}function fromXmlDateTime(prop){// Implementation based up on http://stackoverflow.com/questions/8178598/xml-datetime-to-javascript-date-object\n// Improved to support full spec and optional parts\nvar bits=prop.split(/[-T:+Z]/g);var d=new Date(bits[0],bits[1]-1,bits[2]);var secondBits=bits[5].split(\"\\.\");d.setHours(bits[3],bits[4],secondBits[0]);if(secondBits.length>1)d.setMilliseconds(secondBits[1]);// Get supplied time zone offset in minutes\nif(bits[6]&&bits[7]){var offsetMinutes=bits[6]*60+Number(bits[7]);var sign=/\\d\\d-\\d\\d:\\d\\d$/.test(prop)?'-':'+';// Apply the sign\noffsetMinutes=0+(sign=='-'?-1*offsetMinutes:offsetMinutes);// Apply offset and local timezone\nd.setMinutes(d.getMinutes()-offsetMinutes-d.getTimezoneOffset());}else if(prop.indexOf(\"Z\",prop.length-1)!==-1){d=new Date(Date.UTC(d.getFullYear(),d.getMonth(),d.getDate(),d.getHours(),d.getMinutes(),d.getSeconds(),d.getMilliseconds()));}// d is now a local time equivalent to the supplied time\nreturn d;}function checkFromXmlDateTimePaths(value,childName,fullPath){if(config.datetimeAccessFormPaths.length>0){var path=fullPath.split(\"\\.#\")[0];if(checkInStdFiltersArrayForm(config.datetimeAccessFormPaths,value,childName,path)){return fromXmlDateTime(value);}else return value;}else return value;}function checkXmlElementsFilter(obj,childType,childName,childPath){if(childType==DOMNodeTypes.ELEMENT_NODE&&config.xmlElementsFilter.length>0){return checkInStdFiltersArrayForm(config.xmlElementsFilter,obj,childName,childPath);}else return true;}function parseDOMChildren(node,path){if(node.nodeType==DOMNodeTypes.DOCUMENT_NODE){var result=new Object();var nodeChildren=node.childNodes;// Alternative for firstElementChild which is not supported in some environments\nfor(var cidx=0;cidx<nodeChildren.length;cidx++){var child=nodeChildren[cidx];if(child.nodeType==DOMNodeTypes.ELEMENT_NODE){if(config.ignoreRoot){result=parseDOMChildren(child);}else{result={};var childName=getNodeLocalName(child);result[childName]=parseDOMChildren(child);}}}return result;}else if(node.nodeType==DOMNodeTypes.ELEMENT_NODE){var result=new Object();result.__cnt=0;var children=[];var nodeChildren=node.childNodes;// Children nodes\nfor(var cidx=0;cidx<nodeChildren.length;cidx++){var child=nodeChildren[cidx];var childName=getNodeLocalName(child);if(child.nodeType!=DOMNodeTypes.COMMENT_NODE){var childPath=path+\".\"+childName;if(checkXmlElementsFilter(result,child.nodeType,childName,childPath)){result.__cnt++;if(result[childName]==null){var c=parseDOMChildren(child,childPath);if(childName!=\"#text\"||/[^\\s]/.test(c)){var o={};o[childName]=c;children.push(o);}result[childName]=c;toArrayAccessForm(result,childName,childPath);}else{if(result[childName]!=null){if(!(result[childName]instanceof Array)){result[childName]=[result[childName]];toArrayAccessForm(result,childName,childPath);}}var c=parseDOMChildren(child,childPath);if(childName!=\"#text\"||/[^\\s]/.test(c)){// Don't add white-space text nodes\nvar o={};o[childName]=c;children.push(o);}result[childName][result[childName].length]=c;}}}}result.__children=children;// Attributes\nvar nodeLocalName=getNodeLocalName(node);for(var aidx=0;aidx<node.attributes.length;aidx++){var attr=node.attributes[aidx];result.__cnt++;var value2=attr.value;for(var m=0,ml=config.matchers.length;m<ml;m++){var matchobj=config.matchers[m];if(matchobj.test(attr,nodeLocalName))value2=matchobj.converter(attr.value);}result[config.attributePrefix+attr.name]=value2;}// Node namespace prefix\nvar nodePrefix=getNodePrefix(node);if(nodePrefix!=null&&nodePrefix!=\"\"){result.__cnt++;result.__prefix=nodePrefix;}if(result[\"#text\"]!=null){result.__text=result[\"#text\"];if(result.__text instanceof Array){result.__text=result.__text.join(\"\\n\");}//if(config.escapeMode)\n//\tresult.__text = unescapeXmlChars(result.__text);\nif(config.stripWhitespaces)result.__text=result.__text.trim();delete result[\"#text\"];if(config.arrayAccessForm==\"property\")delete result[\"#text_asArray\"];result.__text=checkFromXmlDateTimePaths(result.__text,childName,path+\".\"+childName);}if(result[\"#cdata-section\"]!=null){result.__cdata=result[\"#cdata-section\"];delete result[\"#cdata-section\"];if(config.arrayAccessForm==\"property\")delete result[\"#cdata-section_asArray\"];}if(result.__cnt==0&&config.emptyNodeForm==\"text\"){result='';}else if(result.__cnt==1&&result.__text!=null){result=result.__text;}else if(result.__cnt==1&&result.__cdata!=null&&!config.keepCData){result=result.__cdata;}else if(result.__cnt>1&&result.__text!=null&&config.skipEmptyTextNodesForObj){if(config.stripWhitespaces&&result.__text==\"\"||result.__text.trim()==\"\"){delete result.__text;}}delete result.__cnt;if(config.enableToStringFunc&&(result.__text!=null||result.__cdata!=null)){result.toString=function(){return(this.__text!=null?this.__text:'')+(this.__cdata!=null?this.__cdata:'');};}return result;}else if(node.nodeType==DOMNodeTypes.TEXT_NODE||node.nodeType==DOMNodeTypes.CDATA_SECTION_NODE){return node.nodeValue;}}function startTag(jsonObj,element,attrList,closed){var resultStr=\"<\"+(jsonObj!=null&&jsonObj.__prefix!=null?jsonObj.__prefix+\":\":\"\")+element;if(attrList!=null){for(var aidx=0;aidx<attrList.length;aidx++){var attrName=attrList[aidx];var attrVal=jsonObj[attrName];if(config.escapeMode)attrVal=escapeXmlChars(attrVal);resultStr+=\" \"+attrName.substr(config.attributePrefix.length)+\"=\";if(config.useDoubleQuotes)resultStr+='\"'+attrVal+'\"';else resultStr+=\"'\"+attrVal+\"'\";}}if(!closed)resultStr+=\">\";else resultStr+=\"/>\";return resultStr;}function endTag(jsonObj,elementName){return\"</\"+(jsonObj.__prefix!=null?jsonObj.__prefix+\":\":\"\")+elementName+\">\";}function endsWith(str,suffix){return str.indexOf(suffix,str.length-suffix.length)!==-1;}function jsonXmlSpecialElem(jsonObj,jsonObjField){if(config.arrayAccessForm==\"property\"&&endsWith(jsonObjField.toString(),\"_asArray\")||jsonObjField.toString().indexOf(config.attributePrefix)==0||jsonObjField.toString().indexOf(\"__\")==0||jsonObj[jsonObjField]instanceof Function)return true;else return false;}function jsonXmlElemCount(jsonObj){var elementsCnt=0;if(jsonObj instanceof Object){for(var it in jsonObj){if(jsonXmlSpecialElem(jsonObj,it))continue;elementsCnt++;}}return elementsCnt;}function checkJsonObjPropertiesFilter(jsonObj,propertyName,jsonObjPath){return config.jsonPropertiesFilter.length==0||jsonObjPath==\"\"||checkInStdFiltersArrayForm(config.jsonPropertiesFilter,jsonObj,propertyName,jsonObjPath);}function parseJSONAttributes(jsonObj){var attrList=[];if(jsonObj instanceof Object){for(var ait in jsonObj){if(ait.toString().indexOf(\"__\")==-1&&ait.toString().indexOf(config.attributePrefix)==0){attrList.push(ait);}}}return attrList;}function parseJSONTextAttrs(jsonTxtObj){var result=\"\";if(jsonTxtObj.__cdata!=null){result+=\"<![CDATA[\"+jsonTxtObj.__cdata+\"]]>\";}if(jsonTxtObj.__text!=null){if(config.escapeMode)result+=escapeXmlChars(jsonTxtObj.__text);else result+=jsonTxtObj.__text;}return result;}function parseJSONTextObject(jsonTxtObj){var result=\"\";if(jsonTxtObj instanceof Object){result+=parseJSONTextAttrs(jsonTxtObj);}else if(jsonTxtObj!=null){if(config.escapeMode)result+=escapeXmlChars(jsonTxtObj);else result+=jsonTxtObj;}return result;}function getJsonPropertyPath(jsonObjPath,jsonPropName){if(jsonObjPath===\"\"){return jsonPropName;}else return jsonObjPath+\".\"+jsonPropName;}function parseJSONArray(jsonArrRoot,jsonArrObj,attrList,jsonObjPath){var result=\"\";if(jsonArrRoot.length==0){result+=startTag(jsonArrRoot,jsonArrObj,attrList,true);}else{for(var arIdx=0;arIdx<jsonArrRoot.length;arIdx++){result+=startTag(jsonArrRoot[arIdx],jsonArrObj,parseJSONAttributes(jsonArrRoot[arIdx]),false);result+=parseJSONObject(jsonArrRoot[arIdx],getJsonPropertyPath(jsonObjPath,jsonArrObj));result+=endTag(jsonArrRoot[arIdx],jsonArrObj);}}return result;}function parseJSONObject(jsonObj,jsonObjPath){var result=\"\";var elementsCnt=jsonXmlElemCount(jsonObj);if(elementsCnt>0){for(var it in jsonObj){if(jsonXmlSpecialElem(jsonObj,it)||jsonObjPath!=\"\"&&!checkJsonObjPropertiesFilter(jsonObj,it,getJsonPropertyPath(jsonObjPath,it)))continue;var subObj=jsonObj[it];var attrList=parseJSONAttributes(subObj);if(subObj==null||subObj==undefined){result+=startTag(subObj,it,attrList,true);}else if(subObj instanceof Object){if(subObj instanceof Array){result+=parseJSONArray(subObj,it,attrList,jsonObjPath);}else if(subObj instanceof Date){result+=startTag(subObj,it,attrList,false);result+=subObj.toISOString();result+=endTag(subObj,it);}else{var subObjElementsCnt=jsonXmlElemCount(subObj);if(subObjElementsCnt>0||subObj.__text!=null||subObj.__cdata!=null){result+=startTag(subObj,it,attrList,false);result+=parseJSONObject(subObj,getJsonPropertyPath(jsonObjPath,it));result+=endTag(subObj,it);}else{result+=startTag(subObj,it,attrList,true);}}}else{result+=startTag(subObj,it,attrList,false);result+=parseJSONTextObject(subObj);result+=endTag(subObj,it);}}}result+=parseJSONTextObject(jsonObj);return result;}this.parseXmlString=function(xmlDocStr){var isIEParser=window.ActiveXObject||\"ActiveXObject\"in window;if(xmlDocStr===undefined){return null;}var xmlDoc;if(window.DOMParser){var parser=new window.DOMParser();var parsererrorNS=null;try{xmlDoc=parser.parseFromString(xmlDocStr,\"text/xml\");if(xmlDoc.getElementsByTagNameNS(\"*\",\"parsererror\").length>0){xmlDoc=null;}}catch(err){xmlDoc=null;}}else{// IE :(\nif(xmlDocStr.indexOf(\"<?\")==0){xmlDocStr=xmlDocStr.substr(xmlDocStr.indexOf(\"?>\")+2);}xmlDoc=new ActiveXObject(\"Microsoft.XMLDOM\");xmlDoc.async=\"false\";xmlDoc.loadXML(xmlDocStr);}return xmlDoc;};this.asArray=function(prop){if(prop===undefined||prop==null)return[];else if(prop instanceof Array)return prop;else return[prop];};this.toXmlDateTime=function(dt){if(dt instanceof Date)return dt.toISOString();else if(typeof dt==='number')return new Date(dt).toISOString();else return null;};this.asDateTime=function(prop){if(typeof prop==\"string\"){return fromXmlDateTime(prop);}else return prop;};this.xml2json=function(xmlDoc){return parseDOMChildren(xmlDoc);};this.xml_str2json=function(xmlDocStr){var xmlDoc=this.parseXmlString(xmlDocStr);if(xmlDoc!=null)return this.xml2json(xmlDoc);else return null;};this.json2xml_str=function(jsonObj){return parseJSONObject(jsonObj,\"\");};this.json2xml=function(jsonObj){var xmlDocStr=this.json2xml_str(jsonObj);return this.parseXmlString(xmlDocStr);};this.getVersion=function(){return VERSION;};}exports.default=X2JS;\n//# sourceMappingURL=xml2json.js.map\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n *//**\n  * @ignore\n  */function RNG(){// check whether secure random numbers are available. if not, revert to\n// using Math.random\nvar crypto=window.crypto||window.msCrypto;// could just as easily use any other array type by changing line below\nvar ArrayType=Uint32Array;var MAX_VALUE=Math.pow(2,ArrayType.BYTES_PER_ELEMENT*8)-1;// currently there is only one client for this code, and that only uses\n// a single random number per initialisation. may want to increase this\n// number if more consumers in the future\nvar NUM_RANDOM_NUMBERS=10;var randomNumbers=void 0,index=void 0,instance=void 0;function initialise(){if(crypto){if(!randomNumbers){randomNumbers=new ArrayType(NUM_RANDOM_NUMBERS);}crypto.getRandomValues(randomNumbers);index=0;}}function rand(min,max){var r=void 0;if(!min){min=0;}if(!max){max=1;}if(crypto){if(index===randomNumbers.length){initialise();}r=randomNumbers[index]/MAX_VALUE;index+=1;}else{r=Math.random();}return r*(max-min)+min;}instance={random:rand};initialise();return instance;}RNG.__dashjs_factory_name='RNG';exports.default=dashjs.FactoryMaker.getSingletonFactory(RNG);/* jshint ignore:line */\n//# sourceMappingURL=RNG.js.map\n","var setPrototypeOf = require(\"./setPrototypeOf.js\");\n\nfunction _inheritsLoose(subClass, superClass) {\n  subClass.prototype = Object.create(superClass.prototype);\n  subClass.prototype.constructor = subClass;\n  setPrototypeOf(subClass, superClass);\n}\n\nmodule.exports = _inheritsLoose;\nmodule.exports[\"default\"] = module.exports, module.exports.__esModule = true;","var store = require('../internals/shared-store');\n\nvar functionToString = Function.toString;\n\n// this helper broken in `3.4.1-3.4.4`, so we can't use `shared` helper\nif (typeof store.inspectSource != 'function') {\n  store.inspectSource = function (it) {\n    return functionToString.call(it);\n  };\n}\n\nmodule.exports = store.inspectSource;\n","'use strict'\n\n/**\n * \"Shallow freezes\" an object to render it immutable.\n * Uses `Object.freeze` if available,\n * otherwise the immutability is only in the type.\n *\n * Is used to create \"enum like\" objects.\n *\n * @template T\n * @param {T} object the object to freeze\n * @param {Pick<ObjectConstructor, 'freeze'> = Object} oc `Object` by default,\n * \t\t\t\tallows to inject custom object constructor for tests\n * @returns {Readonly<T>}\n *\n * @see https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/freeze\n */\nfunction freeze(object, oc) {\n\tif (oc === undefined) {\n\t\toc = Object\n\t}\n\treturn oc && typeof oc.freeze === 'function' ? oc.freeze(object) : object\n}\n\n/**\n * All mime types that are allowed as input to `DOMParser.parseFromString`\n *\n * @see https://developer.mozilla.org/en-US/docs/Web/API/DOMParser/parseFromString#Argument02 MDN\n * @see https://html.spec.whatwg.org/multipage/dynamic-markup-insertion.html#domparsersupportedtype WHATWG HTML Spec\n * @see DOMParser.prototype.parseFromString\n */\nvar MIME_TYPE = freeze({\n\t/**\n\t * `text/html`, the only mime type that triggers treating an XML document as HTML.\n\t *\n\t * @see DOMParser.SupportedType.isHTML\n\t * @see https://www.iana.org/assignments/media-types/text/html IANA MimeType registration\n\t * @see https://en.wikipedia.org/wiki/HTML Wikipedia\n\t * @see https://developer.mozilla.org/en-US/docs/Web/API/DOMParser/parseFromString MDN\n\t * @see https://html.spec.whatwg.org/multipage/dynamic-markup-insertion.html#dom-domparser-parsefromstring WHATWG HTML Spec\n\t */\n\tHTML: 'text/html',\n\n\t/**\n\t * Helper method to check a mime type if it indicates an HTML document\n\t *\n\t * @param {string} [value]\n\t * @returns {boolean}\n\t *\n\t * @see https://www.iana.org/assignments/media-types/text/html IANA MimeType registration\n\t * @see https://en.wikipedia.org/wiki/HTML Wikipedia\n\t * @see https://developer.mozilla.org/en-US/docs/Web/API/DOMParser/parseFromString MDN\n\t * @see https://html.spec.whatwg.org/multipage/dynamic-markup-insertion.html#dom-domparser-parsefromstring \t */\n\tisHTML: function (value) {\n\t\treturn value === MIME_TYPE.HTML\n\t},\n\n\t/**\n\t * `application/xml`, the standard mime type for XML documents.\n\t *\n\t * @see https://www.iana.org/assignments/media-types/application/xml IANA MimeType registration\n\t * @see https://tools.ietf.org/html/rfc7303#section-9.1 RFC 7303\n\t * @see https://en.wikipedia.org/wiki/XML_and_MIME Wikipedia\n\t */\n\tXML_APPLICATION: 'application/xml',\n\n\t/**\n\t * `text/html`, an alias for `application/xml`.\n\t *\n\t * @see https://tools.ietf.org/html/rfc7303#section-9.2 RFC 7303\n\t * @see https://www.iana.org/assignments/media-types/text/xml IANA MimeType registration\n\t * @see https://en.wikipedia.org/wiki/XML_and_MIME Wikipedia\n\t */\n\tXML_TEXT: 'text/xml',\n\n\t/**\n\t * `application/xhtml+xml`, indicates an XML document that has the default HTML namespace,\n\t * but is parsed as an XML document.\n\t *\n\t * @see https://www.iana.org/assignments/media-types/application/xhtml+xml IANA MimeType registration\n\t * @see https://dom.spec.whatwg.org/#dom-domimplementation-createdocument WHATWG DOM Spec\n\t * @see https://en.wikipedia.org/wiki/XHTML Wikipedia\n\t */\n\tXML_XHTML_APPLICATION: 'application/xhtml+xml',\n\n\t/**\n\t * `image/svg+xml`,\n\t *\n\t * @see https://www.iana.org/assignments/media-types/image/svg+xml IANA MimeType registration\n\t * @see https://www.w3.org/TR/SVG11/ W3C SVG 1.1\n\t * @see https://en.wikipedia.org/wiki/Scalable_Vector_Graphics Wikipedia\n\t */\n\tXML_SVG_IMAGE: 'image/svg+xml',\n})\n\n/**\n * Namespaces that are used in this code base.\n *\n * @see http://www.w3.org/TR/REC-xml-names\n */\nvar NAMESPACE = freeze({\n\t/**\n\t * The XHTML namespace.\n\t *\n\t * @see http://www.w3.org/1999/xhtml\n\t */\n\tHTML: 'http://www.w3.org/1999/xhtml',\n\n\t/**\n\t * Checks if `uri` equals `NAMESPACE.HTML`.\n\t *\n\t * @param {string} [uri]\n\t *\n\t * @see NAMESPACE.HTML\n\t */\n\tisHTML: function (uri) {\n\t\treturn uri === NAMESPACE.HTML\n\t},\n\n\t/**\n\t * The SVG namespace.\n\t *\n\t * @see http://www.w3.org/2000/svg\n\t */\n\tSVG: 'http://www.w3.org/2000/svg',\n\n\t/**\n\t * The `xml:` namespace.\n\t *\n\t * @see http://www.w3.org/XML/1998/namespace\n\t */\n\tXML: 'http://www.w3.org/XML/1998/namespace',\n\n\t/**\n\t * The `xmlns:` namespace\n\t *\n\t * @see https://www.w3.org/2000/xmlns/\n\t */\n\tXMLNS: 'http://www.w3.org/2000/xmlns/',\n})\n\nexports.freeze = freeze;\nexports.MIME_TYPE = MIME_TYPE;\nexports.NAMESPACE = NAMESPACE;\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _FactoryMaker=require('./FactoryMaker');var _FactoryMaker2=_interopRequireDefault(_FactoryMaker);function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}var EVENT_PRIORITY_LOW=0;/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n */var EVENT_PRIORITY_HIGH=5000;function EventBus(){var handlers={};function on(type,listener,scope){var priority=arguments.length>3&&arguments[3]!==undefined?arguments[3]:EVENT_PRIORITY_LOW;if(!type){throw new Error('event type cannot be null or undefined');}if(!listener||typeof listener!=='function'){throw new Error('listener must be a function: '+listener);}if(getHandlerIdx(type,listener,scope)>=0)return;handlers[type]=handlers[type]||[];var handler={callback:listener,scope:scope,priority:priority};var inserted=handlers[type].some(function(item,idx){if(item&&priority>item.priority){handlers[type].splice(idx,0,handler);return true;}});if(!inserted){handlers[type].push(handler);}}function off(type,listener,scope){if(!type||!listener||!handlers[type])return;var idx=getHandlerIdx(type,listener,scope);if(idx<0)return;handlers[type][idx]=null;}function trigger(type,payload){if(!type||!handlers[type])return;payload=payload||{};if(payload.hasOwnProperty('type'))throw new Error('\\'type\\' is a reserved word for event dispatching');payload.type=type;handlers[type]=handlers[type].filter(function(item){return item;});handlers[type].forEach(function(handler){return handler&&handler.callback.call(handler.scope,payload);});}function getHandlerIdx(type,listener,scope){var idx=-1;if(!handlers[type])return idx;handlers[type].some(function(item,index){if(item&&item.callback===listener&&(!scope||scope===item.scope)){idx=index;return true;}});return idx;}function reset(){handlers={};}var instance={on:on,off:off,trigger:trigger,reset:reset};return instance;}EventBus.__dashjs_factory_name='EventBus';var factory=_FactoryMaker2.default.getSingletonFactory(EventBus);factory.EVENT_PRIORITY_LOW=EVENT_PRIORITY_LOW;factory.EVENT_PRIORITY_HIGH=EVENT_PRIORITY_HIGH;_FactoryMaker2.default.updateSingletonFactory(EventBus.__dashjs_factory_name,factory);exports.default=factory;\n//# sourceMappingURL=EventBus.js.map\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _createClass=function(){function defineProperties(target,props){for(var i=0;i<props.length;i++){var descriptor=props[i];descriptor.enumerable=descriptor.enumerable||false;descriptor.configurable=true;if(\"value\"in descriptor)descriptor.writable=true;Object.defineProperty(target,descriptor.key,descriptor);}}return function(Constructor,protoProps,staticProps){if(protoProps)defineProperties(Constructor.prototype,protoProps);if(staticProps)defineProperties(Constructor,staticProps);return Constructor;};}();function _classCallCheck(instance,Constructor){if(!(instance instanceof Constructor)){throw new TypeError(\"Cannot call a class as a function\");}}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n *//**\n * Static methods for rounding decimals\n *\n * Modified version of the CC0-licenced example at:\n * https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Math/round\n *\n * @export\n * @class Round10\n * @ignore\n */var Round10=function(){function Round10(){_classCallCheck(this,Round10);}_createClass(Round10,null,[{key:'round10',/**\n    * Decimal round.\n    *\n    * @param {Number}  value The number.\n    * @param {Integer} exp   The exponent (the 10 logarithm of the adjustment base).\n    * @returns {Number} The adjusted value.\n    * @ignore\n    */value:function round10(value,exp){return _decimalAdjust('round',value,exp);}}]);return Round10;}();/**\n * Decimal adjustment of a number.\n *\n * @param {String}  type  The type of adjustment.\n * @param {Number}  value The number.\n * @param {Integer} exp   The exponent (the 10 logarithm of the adjustment base).\n * @returns {Number} The adjusted value.\n * @ignore\n */exports.default=Round10;function _decimalAdjust(type,value,exp){// If the exp is undefined or zero...\nif(typeof exp==='undefined'||+exp===0){return Math[type](value);}value=+value;exp=+exp;// If the value is not a number or the exp is not an integer...\nif(value===null||isNaN(value)||!(typeof exp==='number'&&exp%1===0)){return NaN;}// Shift\nvalue=value.toString().split('e');value=Math[type](+(value[0]+'e'+(value[1]?+value[1]-exp:-exp)));// Shift back\nvalue=value.toString().split('e');return+(value[0]+'e'+(value[1]?+value[1]+exp:exp));}\n//# sourceMappingURL=Round10.js.map\n","\"use strict\";Object.defineProperty(exports,\"__esModule\",{value:true});var _createClass=function(){function defineProperties(target,props){for(var i=0;i<props.length;i++){var descriptor=props[i];descriptor.enumerable=descriptor.enumerable||false;descriptor.configurable=true;if(\"value\"in descriptor)descriptor.writable=true;Object.defineProperty(target,descriptor.key,descriptor);}}return function(Constructor,protoProps,staticProps){if(protoProps)defineProperties(Constructor.prototype,protoProps);if(staticProps)defineProperties(Constructor,staticProps);return Constructor;};}();function _classCallCheck(instance,Constructor){if(!(instance instanceof Constructor)){throw new TypeError(\"Cannot call a class as a function\");}}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n *//**\n * @class\n * @ignore\n */var MediaInfo=function(){function MediaInfo(){_classCallCheck(this,MediaInfo);this.id=null;this.index=null;this.type=null;this.streamInfo=null;this.representationCount=0;this.lang=null;this.viewpoint=null;this.accessibility=null;this.audioChannelConfiguration=null;this.roles=null;this.codec=null;this.mimeType=null;this.contentProtection=null;this.isText=false;this.KID=null;this.bitrateList=null;}_createClass(MediaInfo,[{key:\"isMediaInfoEqual\",value:function isMediaInfoEqual(mediaInfo){if(!mediaInfo){return false;}var sameId=this.id===mediaInfo.id;var sameViewpoint=this.viewpoint===mediaInfo.viewpoint;var sameLang=this.lang===mediaInfo.lang;var sameRoles=this.roles.toString()===mediaInfo.roles.toString();var sameAccessibility=this.accessibility.toString()===mediaInfo.accessibility.toString();var sameAudioChannelConfiguration=this.audioChannelConfiguration.toString()===mediaInfo.audioChannelConfiguration.toString();return sameId&&sameViewpoint&&sameLang&&sameRoles&&sameAccessibility&&sameAudioChannelConfiguration;}}]);return MediaInfo;}();exports.default=MediaInfo;\n//# sourceMappingURL=MediaInfo.js.map\n","\"use strict\";\n\nvar window = require('global/window');\n\nvar httpResponseHandler = function httpResponseHandler(callback, decodeResponseBody) {\n  if (decodeResponseBody === void 0) {\n    decodeResponseBody = false;\n  }\n\n  return function (err, response, responseBody) {\n    // if the XHR failed, return that error\n    if (err) {\n      callback(err);\n      return;\n    } // if the HTTP status code is 4xx or 5xx, the request also failed\n\n\n    if (response.statusCode >= 400 && response.statusCode <= 599) {\n      var cause = responseBody;\n\n      if (decodeResponseBody) {\n        if (window.TextDecoder) {\n          var charset = getCharset(response.headers && response.headers['content-type']);\n\n          try {\n            cause = new TextDecoder(charset).decode(responseBody);\n          } catch (e) {}\n        } else {\n          cause = String.fromCharCode.apply(null, new Uint8Array(responseBody));\n        }\n      }\n\n      callback({\n        cause: cause\n      });\n      return;\n    } // otherwise, request succeeded\n\n\n    callback(null, responseBody);\n  };\n};\n\nfunction getCharset(contentTypeHeader) {\n  if (contentTypeHeader === void 0) {\n    contentTypeHeader = '';\n  }\n\n  return contentTypeHeader.toLowerCase().split(';').reduce(function (charset, contentType) {\n    var _contentType$split = contentType.split('='),\n        type = _contentType$split[0],\n        value = _contentType$split[1];\n\n    if (type.trim() === 'charset') {\n      return value.trim();\n    }\n\n    return charset;\n  }, 'utf-8');\n}\n\nmodule.exports = httpResponseHandler;","module.exports = SafeParseTuple\n\nfunction SafeParseTuple(obj, reviver) {\n    var json\n    var error = null\n\n    try {\n        json = JSON.parse(obj, reviver)\n    } catch (err) {\n        error = err\n    }\n\n    return [error, json]\n}\n","/*!\n  * vue-router v3.1.6\n  * (c) 2020 Evan You\n  * @license MIT\n  */\n/*  */\n\nfunction assert (condition, message) {\n  if (!condition) {\n    throw new Error((\"[vue-router] \" + message))\n  }\n}\n\nfunction warn (condition, message) {\n  if (process.env.NODE_ENV !== 'production' && !condition) {\n    typeof console !== 'undefined' && console.warn((\"[vue-router] \" + message));\n  }\n}\n\nfunction isError (err) {\n  return Object.prototype.toString.call(err).indexOf('Error') > -1\n}\n\nfunction isExtendedError (constructor, err) {\n  return (\n    err instanceof constructor ||\n    // _name is to support IE9 too\n    (err && (err.name === constructor.name || err._name === constructor._name))\n  )\n}\n\nfunction extend (a, b) {\n  for (var key in b) {\n    a[key] = b[key];\n  }\n  return a\n}\n\nvar View = {\n  name: 'RouterView',\n  functional: true,\n  props: {\n    name: {\n      type: String,\n      default: 'default'\n    }\n  },\n  render: function render (_, ref) {\n    var props = ref.props;\n    var children = ref.children;\n    var parent = ref.parent;\n    var data = ref.data;\n\n    // used by devtools to display a router-view badge\n    data.routerView = true;\n\n    // directly use parent context's createElement() function\n    // so that components rendered by router-view can resolve named slots\n    var h = parent.$createElement;\n    var name = props.name;\n    var route = parent.$route;\n    var cache = parent._routerViewCache || (parent._routerViewCache = {});\n\n    // determine current view depth, also check to see if the tree\n    // has been toggled inactive but kept-alive.\n    var depth = 0;\n    var inactive = false;\n    while (parent && parent._routerRoot !== parent) {\n      var vnodeData = parent.$vnode ? parent.$vnode.data : {};\n      if (vnodeData.routerView) {\n        depth++;\n      }\n      if (vnodeData.keepAlive && parent._directInactive && parent._inactive) {\n        inactive = true;\n      }\n      parent = parent.$parent;\n    }\n    data.routerViewDepth = depth;\n\n    // render previous view if the tree is inactive and kept-alive\n    if (inactive) {\n      var cachedData = cache[name];\n      var cachedComponent = cachedData && cachedData.component;\n      if (cachedComponent) {\n        // #2301\n        // pass props\n        if (cachedData.configProps) {\n          fillPropsinData(cachedComponent, data, cachedData.route, cachedData.configProps);\n        }\n        return h(cachedComponent, data, children)\n      } else {\n        // render previous empty view\n        return h()\n      }\n    }\n\n    var matched = route.matched[depth];\n    var component = matched && matched.components[name];\n\n    // render empty node if no matched route or no config component\n    if (!matched || !component) {\n      cache[name] = null;\n      return h()\n    }\n\n    // cache component\n    cache[name] = { component: component };\n\n    // attach instance registration hook\n    // this will be called in the instance's injected lifecycle hooks\n    data.registerRouteInstance = function (vm, val) {\n      // val could be undefined for unregistration\n      var current = matched.instances[name];\n      if (\n        (val && current !== vm) ||\n        (!val && current === vm)\n      ) {\n        matched.instances[name] = val;\n      }\n    }\n\n    // also register instance in prepatch hook\n    // in case the same component instance is reused across different routes\n    ;(data.hook || (data.hook = {})).prepatch = function (_, vnode) {\n      matched.instances[name] = vnode.componentInstance;\n    };\n\n    // register instance in init hook\n    // in case kept-alive component be actived when routes changed\n    data.hook.init = function (vnode) {\n      if (vnode.data.keepAlive &&\n        vnode.componentInstance &&\n        vnode.componentInstance !== matched.instances[name]\n      ) {\n        matched.instances[name] = vnode.componentInstance;\n      }\n    };\n\n    var configProps = matched.props && matched.props[name];\n    // save route and configProps in cachce\n    if (configProps) {\n      extend(cache[name], {\n        route: route,\n        configProps: configProps\n      });\n      fillPropsinData(component, data, route, configProps);\n    }\n\n    return h(component, data, children)\n  }\n};\n\nfunction fillPropsinData (component, data, route, configProps) {\n  // resolve props\n  var propsToPass = data.props = resolveProps(route, configProps);\n  if (propsToPass) {\n    // clone to prevent mutation\n    propsToPass = data.props = extend({}, propsToPass);\n    // pass non-declared props as attrs\n    var attrs = data.attrs = data.attrs || {};\n    for (var key in propsToPass) {\n      if (!component.props || !(key in component.props)) {\n        attrs[key] = propsToPass[key];\n        delete propsToPass[key];\n      }\n    }\n  }\n}\n\nfunction resolveProps (route, config) {\n  switch (typeof config) {\n    case 'undefined':\n      return\n    case 'object':\n      return config\n    case 'function':\n      return config(route)\n    case 'boolean':\n      return config ? route.params : undefined\n    default:\n      if (process.env.NODE_ENV !== 'production') {\n        warn(\n          false,\n          \"props in \\\"\" + (route.path) + \"\\\" is a \" + (typeof config) + \", \" +\n          \"expecting an object, function or boolean.\"\n        );\n      }\n  }\n}\n\n/*  */\n\nvar encodeReserveRE = /[!'()*]/g;\nvar encodeReserveReplacer = function (c) { return '%' + c.charCodeAt(0).toString(16); };\nvar commaRE = /%2C/g;\n\n// fixed encodeURIComponent which is more conformant to RFC3986:\n// - escapes [!'()*]\n// - preserve commas\nvar encode = function (str) { return encodeURIComponent(str)\n  .replace(encodeReserveRE, encodeReserveReplacer)\n  .replace(commaRE, ','); };\n\nvar decode = decodeURIComponent;\n\nfunction resolveQuery (\n  query,\n  extraQuery,\n  _parseQuery\n) {\n  if ( extraQuery === void 0 ) extraQuery = {};\n\n  var parse = _parseQuery || parseQuery;\n  var parsedQuery;\n  try {\n    parsedQuery = parse(query || '');\n  } catch (e) {\n    process.env.NODE_ENV !== 'production' && warn(false, e.message);\n    parsedQuery = {};\n  }\n  for (var key in extraQuery) {\n    parsedQuery[key] = extraQuery[key];\n  }\n  return parsedQuery\n}\n\nfunction parseQuery (query) {\n  var res = {};\n\n  query = query.trim().replace(/^(\\?|#|&)/, '');\n\n  if (!query) {\n    return res\n  }\n\n  query.split('&').forEach(function (param) {\n    var parts = param.replace(/\\+/g, ' ').split('=');\n    var key = decode(parts.shift());\n    var val = parts.length > 0\n      ? decode(parts.join('='))\n      : null;\n\n    if (res[key] === undefined) {\n      res[key] = val;\n    } else if (Array.isArray(res[key])) {\n      res[key].push(val);\n    } else {\n      res[key] = [res[key], val];\n    }\n  });\n\n  return res\n}\n\nfunction stringifyQuery (obj) {\n  var res = obj ? Object.keys(obj).map(function (key) {\n    var val = obj[key];\n\n    if (val === undefined) {\n      return ''\n    }\n\n    if (val === null) {\n      return encode(key)\n    }\n\n    if (Array.isArray(val)) {\n      var result = [];\n      val.forEach(function (val2) {\n        if (val2 === undefined) {\n          return\n        }\n        if (val2 === null) {\n          result.push(encode(key));\n        } else {\n          result.push(encode(key) + '=' + encode(val2));\n        }\n      });\n      return result.join('&')\n    }\n\n    return encode(key) + '=' + encode(val)\n  }).filter(function (x) { return x.length > 0; }).join('&') : null;\n  return res ? (\"?\" + res) : ''\n}\n\n/*  */\n\nvar trailingSlashRE = /\\/?$/;\n\nfunction createRoute (\n  record,\n  location,\n  redirectedFrom,\n  router\n) {\n  var stringifyQuery = router && router.options.stringifyQuery;\n\n  var query = location.query || {};\n  try {\n    query = clone(query);\n  } catch (e) {}\n\n  var route = {\n    name: location.name || (record && record.name),\n    meta: (record && record.meta) || {},\n    path: location.path || '/',\n    hash: location.hash || '',\n    query: query,\n    params: location.params || {},\n    fullPath: getFullPath(location, stringifyQuery),\n    matched: record ? formatMatch(record) : []\n  };\n  if (redirectedFrom) {\n    route.redirectedFrom = getFullPath(redirectedFrom, stringifyQuery);\n  }\n  return Object.freeze(route)\n}\n\nfunction clone (value) {\n  if (Array.isArray(value)) {\n    return value.map(clone)\n  } else if (value && typeof value === 'object') {\n    var res = {};\n    for (var key in value) {\n      res[key] = clone(value[key]);\n    }\n    return res\n  } else {\n    return value\n  }\n}\n\n// the starting route that represents the initial state\nvar START = createRoute(null, {\n  path: '/'\n});\n\nfunction formatMatch (record) {\n  var res = [];\n  while (record) {\n    res.unshift(record);\n    record = record.parent;\n  }\n  return res\n}\n\nfunction getFullPath (\n  ref,\n  _stringifyQuery\n) {\n  var path = ref.path;\n  var query = ref.query; if ( query === void 0 ) query = {};\n  var hash = ref.hash; if ( hash === void 0 ) hash = '';\n\n  var stringify = _stringifyQuery || stringifyQuery;\n  return (path || '/') + stringify(query) + hash\n}\n\nfunction isSameRoute (a, b) {\n  if (b === START) {\n    return a === b\n  } else if (!b) {\n    return false\n  } else if (a.path && b.path) {\n    return (\n      a.path.replace(trailingSlashRE, '') === b.path.replace(trailingSlashRE, '') &&\n      a.hash === b.hash &&\n      isObjectEqual(a.query, b.query)\n    )\n  } else if (a.name && b.name) {\n    return (\n      a.name === b.name &&\n      a.hash === b.hash &&\n      isObjectEqual(a.query, b.query) &&\n      isObjectEqual(a.params, b.params)\n    )\n  } else {\n    return false\n  }\n}\n\nfunction isObjectEqual (a, b) {\n  if ( a === void 0 ) a = {};\n  if ( b === void 0 ) b = {};\n\n  // handle null value #1566\n  if (!a || !b) { return a === b }\n  var aKeys = Object.keys(a);\n  var bKeys = Object.keys(b);\n  if (aKeys.length !== bKeys.length) {\n    return false\n  }\n  return aKeys.every(function (key) {\n    var aVal = a[key];\n    var bVal = b[key];\n    // check nested equality\n    if (typeof aVal === 'object' && typeof bVal === 'object') {\n      return isObjectEqual(aVal, bVal)\n    }\n    return String(aVal) === String(bVal)\n  })\n}\n\nfunction isIncludedRoute (current, target) {\n  return (\n    current.path.replace(trailingSlashRE, '/').indexOf(\n      target.path.replace(trailingSlashRE, '/')\n    ) === 0 &&\n    (!target.hash || current.hash === target.hash) &&\n    queryIncludes(current.query, target.query)\n  )\n}\n\nfunction queryIncludes (current, target) {\n  for (var key in target) {\n    if (!(key in current)) {\n      return false\n    }\n  }\n  return true\n}\n\n/*  */\n\nfunction resolvePath (\n  relative,\n  base,\n  append\n) {\n  var firstChar = relative.charAt(0);\n  if (firstChar === '/') {\n    return relative\n  }\n\n  if (firstChar === '?' || firstChar === '#') {\n    return base + relative\n  }\n\n  var stack = base.split('/');\n\n  // remove trailing segment if:\n  // - not appending\n  // - appending to trailing slash (last segment is empty)\n  if (!append || !stack[stack.length - 1]) {\n    stack.pop();\n  }\n\n  // resolve relative path\n  var segments = relative.replace(/^\\//, '').split('/');\n  for (var i = 0; i < segments.length; i++) {\n    var segment = segments[i];\n    if (segment === '..') {\n      stack.pop();\n    } else if (segment !== '.') {\n      stack.push(segment);\n    }\n  }\n\n  // ensure leading slash\n  if (stack[0] !== '') {\n    stack.unshift('');\n  }\n\n  return stack.join('/')\n}\n\nfunction parsePath (path) {\n  var hash = '';\n  var query = '';\n\n  var hashIndex = path.indexOf('#');\n  if (hashIndex >= 0) {\n    hash = path.slice(hashIndex);\n    path = path.slice(0, hashIndex);\n  }\n\n  var queryIndex = path.indexOf('?');\n  if (queryIndex >= 0) {\n    query = path.slice(queryIndex + 1);\n    path = path.slice(0, queryIndex);\n  }\n\n  return {\n    path: path,\n    query: query,\n    hash: hash\n  }\n}\n\nfunction cleanPath (path) {\n  return path.replace(/\\/\\//g, '/')\n}\n\nvar isarray = Array.isArray || function (arr) {\n  return Object.prototype.toString.call(arr) == '[object Array]';\n};\n\n/**\n * Expose `pathToRegexp`.\n */\nvar pathToRegexp_1 = pathToRegexp;\nvar parse_1 = parse;\nvar compile_1 = compile;\nvar tokensToFunction_1 = tokensToFunction;\nvar tokensToRegExp_1 = tokensToRegExp;\n\n/**\n * The main path matching regexp utility.\n *\n * @type {RegExp}\n */\nvar PATH_REGEXP = new RegExp([\n  // Match escaped characters that would otherwise appear in future matches.\n  // This allows the user to escape special characters that won't transform.\n  '(\\\\\\\\.)',\n  // Match Express-style parameters and un-named parameters with a prefix\n  // and optional suffixes. Matches appear as:\n  //\n  // \"/:test(\\\\d+)?\" => [\"/\", \"test\", \"\\d+\", undefined, \"?\", undefined]\n  // \"/route(\\\\d+)\"  => [undefined, undefined, undefined, \"\\d+\", undefined, undefined]\n  // \"/*\"            => [\"/\", undefined, undefined, undefined, undefined, \"*\"]\n  '([\\\\/.])?(?:(?:\\\\:(\\\\w+)(?:\\\\(((?:\\\\\\\\.|[^\\\\\\\\()])+)\\\\))?|\\\\(((?:\\\\\\\\.|[^\\\\\\\\()])+)\\\\))([+*?])?|(\\\\*))'\n].join('|'), 'g');\n\n/**\n * Parse a string for the raw tokens.\n *\n * @param  {string}  str\n * @param  {Object=} options\n * @return {!Array}\n */\nfunction parse (str, options) {\n  var tokens = [];\n  var key = 0;\n  var index = 0;\n  var path = '';\n  var defaultDelimiter = options && options.delimiter || '/';\n  var res;\n\n  while ((res = PATH_REGEXP.exec(str)) != null) {\n    var m = res[0];\n    var escaped = res[1];\n    var offset = res.index;\n    path += str.slice(index, offset);\n    index = offset + m.length;\n\n    // Ignore already escaped sequences.\n    if (escaped) {\n      path += escaped[1];\n      continue\n    }\n\n    var next = str[index];\n    var prefix = res[2];\n    var name = res[3];\n    var capture = res[4];\n    var group = res[5];\n    var modifier = res[6];\n    var asterisk = res[7];\n\n    // Push the current path onto the tokens.\n    if (path) {\n      tokens.push(path);\n      path = '';\n    }\n\n    var partial = prefix != null && next != null && next !== prefix;\n    var repeat = modifier === '+' || modifier === '*';\n    var optional = modifier === '?' || modifier === '*';\n    var delimiter = res[2] || defaultDelimiter;\n    var pattern = capture || group;\n\n    tokens.push({\n      name: name || key++,\n      prefix: prefix || '',\n      delimiter: delimiter,\n      optional: optional,\n      repeat: repeat,\n      partial: partial,\n      asterisk: !!asterisk,\n      pattern: pattern ? escapeGroup(pattern) : (asterisk ? '.*' : '[^' + escapeString(delimiter) + ']+?')\n    });\n  }\n\n  // Match any characters still remaining.\n  if (index < str.length) {\n    path += str.substr(index);\n  }\n\n  // If the path exists, push it onto the end.\n  if (path) {\n    tokens.push(path);\n  }\n\n  return tokens\n}\n\n/**\n * Compile a string to a template function for the path.\n *\n * @param  {string}             str\n * @param  {Object=}            options\n * @return {!function(Object=, Object=)}\n */\nfunction compile (str, options) {\n  return tokensToFunction(parse(str, options))\n}\n\n/**\n * Prettier encoding of URI path segments.\n *\n * @param  {string}\n * @return {string}\n */\nfunction encodeURIComponentPretty (str) {\n  return encodeURI(str).replace(/[\\/?#]/g, function (c) {\n    return '%' + c.charCodeAt(0).toString(16).toUpperCase()\n  })\n}\n\n/**\n * Encode the asterisk parameter. Similar to `pretty`, but allows slashes.\n *\n * @param  {string}\n * @return {string}\n */\nfunction encodeAsterisk (str) {\n  return encodeURI(str).replace(/[?#]/g, function (c) {\n    return '%' + c.charCodeAt(0).toString(16).toUpperCase()\n  })\n}\n\n/**\n * Expose a method for transforming tokens into the path function.\n */\nfunction tokensToFunction (tokens) {\n  // Compile all the tokens into regexps.\n  var matches = new Array(tokens.length);\n\n  // Compile all the patterns before compilation.\n  for (var i = 0; i < tokens.length; i++) {\n    if (typeof tokens[i] === 'object') {\n      matches[i] = new RegExp('^(?:' + tokens[i].pattern + ')$');\n    }\n  }\n\n  return function (obj, opts) {\n    var path = '';\n    var data = obj || {};\n    var options = opts || {};\n    var encode = options.pretty ? encodeURIComponentPretty : encodeURIComponent;\n\n    for (var i = 0; i < tokens.length; i++) {\n      var token = tokens[i];\n\n      if (typeof token === 'string') {\n        path += token;\n\n        continue\n      }\n\n      var value = data[token.name];\n      var segment;\n\n      if (value == null) {\n        if (token.optional) {\n          // Prepend partial segment prefixes.\n          if (token.partial) {\n            path += token.prefix;\n          }\n\n          continue\n        } else {\n          throw new TypeError('Expected \"' + token.name + '\" to be defined')\n        }\n      }\n\n      if (isarray(value)) {\n        if (!token.repeat) {\n          throw new TypeError('Expected \"' + token.name + '\" to not repeat, but received `' + JSON.stringify(value) + '`')\n        }\n\n        if (value.length === 0) {\n          if (token.optional) {\n            continue\n          } else {\n            throw new TypeError('Expected \"' + token.name + '\" to not be empty')\n          }\n        }\n\n        for (var j = 0; j < value.length; j++) {\n          segment = encode(value[j]);\n\n          if (!matches[i].test(segment)) {\n            throw new TypeError('Expected all \"' + token.name + '\" to match \"' + token.pattern + '\", but received `' + JSON.stringify(segment) + '`')\n          }\n\n          path += (j === 0 ? token.prefix : token.delimiter) + segment;\n        }\n\n        continue\n      }\n\n      segment = token.asterisk ? encodeAsterisk(value) : encode(value);\n\n      if (!matches[i].test(segment)) {\n        throw new TypeError('Expected \"' + token.name + '\" to match \"' + token.pattern + '\", but received \"' + segment + '\"')\n      }\n\n      path += token.prefix + segment;\n    }\n\n    return path\n  }\n}\n\n/**\n * Escape a regular expression string.\n *\n * @param  {string} str\n * @return {string}\n */\nfunction escapeString (str) {\n  return str.replace(/([.+*?=^!:${}()[\\]|\\/\\\\])/g, '\\\\$1')\n}\n\n/**\n * Escape the capturing group by escaping special characters and meaning.\n *\n * @param  {string} group\n * @return {string}\n */\nfunction escapeGroup (group) {\n  return group.replace(/([=!:$\\/()])/g, '\\\\$1')\n}\n\n/**\n * Attach the keys as a property of the regexp.\n *\n * @param  {!RegExp} re\n * @param  {Array}   keys\n * @return {!RegExp}\n */\nfunction attachKeys (re, keys) {\n  re.keys = keys;\n  return re\n}\n\n/**\n * Get the flags for a regexp from the options.\n *\n * @param  {Object} options\n * @return {string}\n */\nfunction flags (options) {\n  return options.sensitive ? '' : 'i'\n}\n\n/**\n * Pull out keys from a regexp.\n *\n * @param  {!RegExp} path\n * @param  {!Array}  keys\n * @return {!RegExp}\n */\nfunction regexpToRegexp (path, keys) {\n  // Use a negative lookahead to match only capturing groups.\n  var groups = path.source.match(/\\((?!\\?)/g);\n\n  if (groups) {\n    for (var i = 0; i < groups.length; i++) {\n      keys.push({\n        name: i,\n        prefix: null,\n        delimiter: null,\n        optional: false,\n        repeat: false,\n        partial: false,\n        asterisk: false,\n        pattern: null\n      });\n    }\n  }\n\n  return attachKeys(path, keys)\n}\n\n/**\n * Transform an array into a regexp.\n *\n * @param  {!Array}  path\n * @param  {Array}   keys\n * @param  {!Object} options\n * @return {!RegExp}\n */\nfunction arrayToRegexp (path, keys, options) {\n  var parts = [];\n\n  for (var i = 0; i < path.length; i++) {\n    parts.push(pathToRegexp(path[i], keys, options).source);\n  }\n\n  var regexp = new RegExp('(?:' + parts.join('|') + ')', flags(options));\n\n  return attachKeys(regexp, keys)\n}\n\n/**\n * Create a path regexp from string input.\n *\n * @param  {string}  path\n * @param  {!Array}  keys\n * @param  {!Object} options\n * @return {!RegExp}\n */\nfunction stringToRegexp (path, keys, options) {\n  return tokensToRegExp(parse(path, options), keys, options)\n}\n\n/**\n * Expose a function for taking tokens and returning a RegExp.\n *\n * @param  {!Array}          tokens\n * @param  {(Array|Object)=} keys\n * @param  {Object=}         options\n * @return {!RegExp}\n */\nfunction tokensToRegExp (tokens, keys, options) {\n  if (!isarray(keys)) {\n    options = /** @type {!Object} */ (keys || options);\n    keys = [];\n  }\n\n  options = options || {};\n\n  var strict = options.strict;\n  var end = options.end !== false;\n  var route = '';\n\n  // Iterate over the tokens and create our regexp string.\n  for (var i = 0; i < tokens.length; i++) {\n    var token = tokens[i];\n\n    if (typeof token === 'string') {\n      route += escapeString(token);\n    } else {\n      var prefix = escapeString(token.prefix);\n      var capture = '(?:' + token.pattern + ')';\n\n      keys.push(token);\n\n      if (token.repeat) {\n        capture += '(?:' + prefix + capture + ')*';\n      }\n\n      if (token.optional) {\n        if (!token.partial) {\n          capture = '(?:' + prefix + '(' + capture + '))?';\n        } else {\n          capture = prefix + '(' + capture + ')?';\n        }\n      } else {\n        capture = prefix + '(' + capture + ')';\n      }\n\n      route += capture;\n    }\n  }\n\n  var delimiter = escapeString(options.delimiter || '/');\n  var endsWithDelimiter = route.slice(-delimiter.length) === delimiter;\n\n  // In non-strict mode we allow a slash at the end of match. If the path to\n  // match already ends with a slash, we remove it for consistency. The slash\n  // is valid at the end of a path match, not in the middle. This is important\n  // in non-ending mode, where \"/test/\" shouldn't match \"/test//route\".\n  if (!strict) {\n    route = (endsWithDelimiter ? route.slice(0, -delimiter.length) : route) + '(?:' + delimiter + '(?=$))?';\n  }\n\n  if (end) {\n    route += '$';\n  } else {\n    // In non-ending mode, we need the capturing groups to match as much as\n    // possible by using a positive lookahead to the end or next path segment.\n    route += strict && endsWithDelimiter ? '' : '(?=' + delimiter + '|$)';\n  }\n\n  return attachKeys(new RegExp('^' + route, flags(options)), keys)\n}\n\n/**\n * Normalize the given path string, returning a regular expression.\n *\n * An empty array can be passed in for the keys, which will hold the\n * placeholder key descriptions. For example, using `/user/:id`, `keys` will\n * contain `[{ name: 'id', delimiter: '/', optional: false, repeat: false }]`.\n *\n * @param  {(string|RegExp|Array)} path\n * @param  {(Array|Object)=}       keys\n * @param  {Object=}               options\n * @return {!RegExp}\n */\nfunction pathToRegexp (path, keys, options) {\n  if (!isarray(keys)) {\n    options = /** @type {!Object} */ (keys || options);\n    keys = [];\n  }\n\n  options = options || {};\n\n  if (path instanceof RegExp) {\n    return regexpToRegexp(path, /** @type {!Array} */ (keys))\n  }\n\n  if (isarray(path)) {\n    return arrayToRegexp(/** @type {!Array} */ (path), /** @type {!Array} */ (keys), options)\n  }\n\n  return stringToRegexp(/** @type {string} */ (path), /** @type {!Array} */ (keys), options)\n}\npathToRegexp_1.parse = parse_1;\npathToRegexp_1.compile = compile_1;\npathToRegexp_1.tokensToFunction = tokensToFunction_1;\npathToRegexp_1.tokensToRegExp = tokensToRegExp_1;\n\n/*  */\n\n// $flow-disable-line\nvar regexpCompileCache = Object.create(null);\n\nfunction fillParams (\n  path,\n  params,\n  routeMsg\n) {\n  params = params || {};\n  try {\n    var filler =\n      regexpCompileCache[path] ||\n      (regexpCompileCache[path] = pathToRegexp_1.compile(path));\n\n    // Fix #2505 resolving asterisk routes { name: 'not-found', params: { pathMatch: '/not-found' }}\n    // and fix #3106 so that you can work with location descriptor object having params.pathMatch equal to empty string\n    if (typeof params.pathMatch === 'string') { params[0] = params.pathMatch; }\n\n    return filler(params, { pretty: true })\n  } catch (e) {\n    if (process.env.NODE_ENV !== 'production') {\n      // Fix #3072 no warn if `pathMatch` is string\n      warn(typeof params.pathMatch === 'string', (\"missing param for \" + routeMsg + \": \" + (e.message)));\n    }\n    return ''\n  } finally {\n    // delete the 0 if it was added\n    delete params[0];\n  }\n}\n\n/*  */\n\nfunction normalizeLocation (\n  raw,\n  current,\n  append,\n  router\n) {\n  var next = typeof raw === 'string' ? { path: raw } : raw;\n  // named target\n  if (next._normalized) {\n    return next\n  } else if (next.name) {\n    next = extend({}, raw);\n    var params = next.params;\n    if (params && typeof params === 'object') {\n      next.params = extend({}, params);\n    }\n    return next\n  }\n\n  // relative params\n  if (!next.path && next.params && current) {\n    next = extend({}, next);\n    next._normalized = true;\n    var params$1 = extend(extend({}, current.params), next.params);\n    if (current.name) {\n      next.name = current.name;\n      next.params = params$1;\n    } else if (current.matched.length) {\n      var rawPath = current.matched[current.matched.length - 1].path;\n      next.path = fillParams(rawPath, params$1, (\"path \" + (current.path)));\n    } else if (process.env.NODE_ENV !== 'production') {\n      warn(false, \"relative params navigation requires a current route.\");\n    }\n    return next\n  }\n\n  var parsedPath = parsePath(next.path || '');\n  var basePath = (current && current.path) || '/';\n  var path = parsedPath.path\n    ? resolvePath(parsedPath.path, basePath, append || next.append)\n    : basePath;\n\n  var query = resolveQuery(\n    parsedPath.query,\n    next.query,\n    router && router.options.parseQuery\n  );\n\n  var hash = next.hash || parsedPath.hash;\n  if (hash && hash.charAt(0) !== '#') {\n    hash = \"#\" + hash;\n  }\n\n  return {\n    _normalized: true,\n    path: path,\n    query: query,\n    hash: hash\n  }\n}\n\n/*  */\n\n// work around weird flow bug\nvar toTypes = [String, Object];\nvar eventTypes = [String, Array];\n\nvar noop = function () {};\n\nvar Link = {\n  name: 'RouterLink',\n  props: {\n    to: {\n      type: toTypes,\n      required: true\n    },\n    tag: {\n      type: String,\n      default: 'a'\n    },\n    exact: Boolean,\n    append: Boolean,\n    replace: Boolean,\n    activeClass: String,\n    exactActiveClass: String,\n    event: {\n      type: eventTypes,\n      default: 'click'\n    }\n  },\n  render: function render (h) {\n    var this$1 = this;\n\n    var router = this.$router;\n    var current = this.$route;\n    var ref = router.resolve(\n      this.to,\n      current,\n      this.append\n    );\n    var location = ref.location;\n    var route = ref.route;\n    var href = ref.href;\n\n    var classes = {};\n    var globalActiveClass = router.options.linkActiveClass;\n    var globalExactActiveClass = router.options.linkExactActiveClass;\n    // Support global empty active class\n    var activeClassFallback =\n      globalActiveClass == null ? 'router-link-active' : globalActiveClass;\n    var exactActiveClassFallback =\n      globalExactActiveClass == null\n        ? 'router-link-exact-active'\n        : globalExactActiveClass;\n    var activeClass =\n      this.activeClass == null ? activeClassFallback : this.activeClass;\n    var exactActiveClass =\n      this.exactActiveClass == null\n        ? exactActiveClassFallback\n        : this.exactActiveClass;\n\n    var compareTarget = route.redirectedFrom\n      ? createRoute(null, normalizeLocation(route.redirectedFrom), null, router)\n      : route;\n\n    classes[exactActiveClass] = isSameRoute(current, compareTarget);\n    classes[activeClass] = this.exact\n      ? classes[exactActiveClass]\n      : isIncludedRoute(current, compareTarget);\n\n    var handler = function (e) {\n      if (guardEvent(e)) {\n        if (this$1.replace) {\n          router.replace(location, noop);\n        } else {\n          router.push(location, noop);\n        }\n      }\n    };\n\n    var on = { click: guardEvent };\n    if (Array.isArray(this.event)) {\n      this.event.forEach(function (e) {\n        on[e] = handler;\n      });\n    } else {\n      on[this.event] = handler;\n    }\n\n    var data = { class: classes };\n\n    var scopedSlot =\n      !this.$scopedSlots.$hasNormal &&\n      this.$scopedSlots.default &&\n      this.$scopedSlots.default({\n        href: href,\n        route: route,\n        navigate: handler,\n        isActive: classes[activeClass],\n        isExactActive: classes[exactActiveClass]\n      });\n\n    if (scopedSlot) {\n      if (scopedSlot.length === 1) {\n        return scopedSlot[0]\n      } else if (scopedSlot.length > 1 || !scopedSlot.length) {\n        if (process.env.NODE_ENV !== 'production') {\n          warn(\n            false,\n            (\"RouterLink with to=\\\"\" + (this.to) + \"\\\" is trying to use a scoped slot but it didn't provide exactly one child. Wrapping the content with a span element.\")\n          );\n        }\n        return scopedSlot.length === 0 ? h() : h('span', {}, scopedSlot)\n      }\n    }\n\n    if (this.tag === 'a') {\n      data.on = on;\n      data.attrs = { href: href };\n    } else {\n      // find the first <a> child and apply listener and href\n      var a = findAnchor(this.$slots.default);\n      if (a) {\n        // in case the <a> is a static node\n        a.isStatic = false;\n        var aData = (a.data = extend({}, a.data));\n        aData.on = aData.on || {};\n        // transform existing events in both objects into arrays so we can push later\n        for (var event in aData.on) {\n          var handler$1 = aData.on[event];\n          if (event in on) {\n            aData.on[event] = Array.isArray(handler$1) ? handler$1 : [handler$1];\n          }\n        }\n        // append new listeners for router-link\n        for (var event$1 in on) {\n          if (event$1 in aData.on) {\n            // on[event] is always a function\n            aData.on[event$1].push(on[event$1]);\n          } else {\n            aData.on[event$1] = handler;\n          }\n        }\n\n        var aAttrs = (a.data.attrs = extend({}, a.data.attrs));\n        aAttrs.href = href;\n      } else {\n        // doesn't have <a> child, apply listener to self\n        data.on = on;\n      }\n    }\n\n    return h(this.tag, data, this.$slots.default)\n  }\n};\n\nfunction guardEvent (e) {\n  // don't redirect with control keys\n  if (e.metaKey || e.altKey || e.ctrlKey || e.shiftKey) { return }\n  // don't redirect when preventDefault called\n  if (e.defaultPrevented) { return }\n  // don't redirect on right click\n  if (e.button !== undefined && e.button !== 0) { return }\n  // don't redirect if `target=\"_blank\"`\n  if (e.currentTarget && e.currentTarget.getAttribute) {\n    var target = e.currentTarget.getAttribute('target');\n    if (/\\b_blank\\b/i.test(target)) { return }\n  }\n  // this may be a Weex event which doesn't have this method\n  if (e.preventDefault) {\n    e.preventDefault();\n  }\n  return true\n}\n\nfunction findAnchor (children) {\n  if (children) {\n    var child;\n    for (var i = 0; i < children.length; i++) {\n      child = children[i];\n      if (child.tag === 'a') {\n        return child\n      }\n      if (child.children && (child = findAnchor(child.children))) {\n        return child\n      }\n    }\n  }\n}\n\nvar _Vue;\n\nfunction install (Vue) {\n  if (install.installed && _Vue === Vue) { return }\n  install.installed = true;\n\n  _Vue = Vue;\n\n  var isDef = function (v) { return v !== undefined; };\n\n  var registerInstance = function (vm, callVal) {\n    var i = vm.$options._parentVnode;\n    if (isDef(i) && isDef(i = i.data) && isDef(i = i.registerRouteInstance)) {\n      i(vm, callVal);\n    }\n  };\n\n  Vue.mixin({\n    beforeCreate: function beforeCreate () {\n      if (isDef(this.$options.router)) {\n        this._routerRoot = this;\n        this._router = this.$options.router;\n        this._router.init(this);\n        Vue.util.defineReactive(this, '_route', this._router.history.current);\n      } else {\n        this._routerRoot = (this.$parent && this.$parent._routerRoot) || this;\n      }\n      registerInstance(this, this);\n    },\n    destroyed: function destroyed () {\n      registerInstance(this);\n    }\n  });\n\n  Object.defineProperty(Vue.prototype, '$router', {\n    get: function get () { return this._routerRoot._router }\n  });\n\n  Object.defineProperty(Vue.prototype, '$route', {\n    get: function get () { return this._routerRoot._route }\n  });\n\n  Vue.component('RouterView', View);\n  Vue.component('RouterLink', Link);\n\n  var strats = Vue.config.optionMergeStrategies;\n  // use the same hook merging strategy for route hooks\n  strats.beforeRouteEnter = strats.beforeRouteLeave = strats.beforeRouteUpdate = strats.created;\n}\n\n/*  */\n\nvar inBrowser = typeof window !== 'undefined';\n\n/*  */\n\nfunction createRouteMap (\n  routes,\n  oldPathList,\n  oldPathMap,\n  oldNameMap\n) {\n  // the path list is used to control path matching priority\n  var pathList = oldPathList || [];\n  // $flow-disable-line\n  var pathMap = oldPathMap || Object.create(null);\n  // $flow-disable-line\n  var nameMap = oldNameMap || Object.create(null);\n\n  routes.forEach(function (route) {\n    addRouteRecord(pathList, pathMap, nameMap, route);\n  });\n\n  // ensure wildcard routes are always at the end\n  for (var i = 0, l = pathList.length; i < l; i++) {\n    if (pathList[i] === '*') {\n      pathList.push(pathList.splice(i, 1)[0]);\n      l--;\n      i--;\n    }\n  }\n\n  if (process.env.NODE_ENV === 'development') {\n    // warn if routes do not include leading slashes\n    var found = pathList\n    // check for missing leading slash\n      .filter(function (path) { return path && path.charAt(0) !== '*' && path.charAt(0) !== '/'; });\n\n    if (found.length > 0) {\n      var pathNames = found.map(function (path) { return (\"- \" + path); }).join('\\n');\n      warn(false, (\"Non-nested routes must include a leading slash character. Fix the following routes: \\n\" + pathNames));\n    }\n  }\n\n  return {\n    pathList: pathList,\n    pathMap: pathMap,\n    nameMap: nameMap\n  }\n}\n\nfunction addRouteRecord (\n  pathList,\n  pathMap,\n  nameMap,\n  route,\n  parent,\n  matchAs\n) {\n  var path = route.path;\n  var name = route.name;\n  if (process.env.NODE_ENV !== 'production') {\n    assert(path != null, \"\\\"path\\\" is required in a route configuration.\");\n    assert(\n      typeof route.component !== 'string',\n      \"route config \\\"component\\\" for path: \" + (String(\n        path || name\n      )) + \" cannot be a \" + \"string id. Use an actual component instead.\"\n    );\n  }\n\n  var pathToRegexpOptions =\n    route.pathToRegexpOptions || {};\n  var normalizedPath = normalizePath(path, parent, pathToRegexpOptions.strict);\n\n  if (typeof route.caseSensitive === 'boolean') {\n    pathToRegexpOptions.sensitive = route.caseSensitive;\n  }\n\n  var record = {\n    path: normalizedPath,\n    regex: compileRouteRegex(normalizedPath, pathToRegexpOptions),\n    components: route.components || { default: route.component },\n    instances: {},\n    name: name,\n    parent: parent,\n    matchAs: matchAs,\n    redirect: route.redirect,\n    beforeEnter: route.beforeEnter,\n    meta: route.meta || {},\n    props:\n      route.props == null\n        ? {}\n        : route.components\n          ? route.props\n          : { default: route.props }\n  };\n\n  if (route.children) {\n    // Warn if route is named, does not redirect and has a default child route.\n    // If users navigate to this route by name, the default child will\n    // not be rendered (GH Issue #629)\n    if (process.env.NODE_ENV !== 'production') {\n      if (\n        route.name &&\n        !route.redirect &&\n        route.children.some(function (child) { return /^\\/?$/.test(child.path); })\n      ) {\n        warn(\n          false,\n          \"Named Route '\" + (route.name) + \"' has a default child route. \" +\n            \"When navigating to this named route (:to=\\\"{name: '\" + (route.name) + \"'\\\"), \" +\n            \"the default child route will not be rendered. Remove the name from \" +\n            \"this route and use the name of the default child route for named \" +\n            \"links instead.\"\n        );\n      }\n    }\n    route.children.forEach(function (child) {\n      var childMatchAs = matchAs\n        ? cleanPath((matchAs + \"/\" + (child.path)))\n        : undefined;\n      addRouteRecord(pathList, pathMap, nameMap, child, record, childMatchAs);\n    });\n  }\n\n  if (!pathMap[record.path]) {\n    pathList.push(record.path);\n    pathMap[record.path] = record;\n  }\n\n  if (route.alias !== undefined) {\n    var aliases = Array.isArray(route.alias) ? route.alias : [route.alias];\n    for (var i = 0; i < aliases.length; ++i) {\n      var alias = aliases[i];\n      if (process.env.NODE_ENV !== 'production' && alias === path) {\n        warn(\n          false,\n          (\"Found an alias with the same value as the path: \\\"\" + path + \"\\\". You have to remove that alias. It will be ignored in development.\")\n        );\n        // skip in dev to make it work\n        continue\n      }\n\n      var aliasRoute = {\n        path: alias,\n        children: route.children\n      };\n      addRouteRecord(\n        pathList,\n        pathMap,\n        nameMap,\n        aliasRoute,\n        parent,\n        record.path || '/' // matchAs\n      );\n    }\n  }\n\n  if (name) {\n    if (!nameMap[name]) {\n      nameMap[name] = record;\n    } else if (process.env.NODE_ENV !== 'production' && !matchAs) {\n      warn(\n        false,\n        \"Duplicate named routes definition: \" +\n          \"{ name: \\\"\" + name + \"\\\", path: \\\"\" + (record.path) + \"\\\" }\"\n      );\n    }\n  }\n}\n\nfunction compileRouteRegex (\n  path,\n  pathToRegexpOptions\n) {\n  var regex = pathToRegexp_1(path, [], pathToRegexpOptions);\n  if (process.env.NODE_ENV !== 'production') {\n    var keys = Object.create(null);\n    regex.keys.forEach(function (key) {\n      warn(\n        !keys[key.name],\n        (\"Duplicate param keys in route with path: \\\"\" + path + \"\\\"\")\n      );\n      keys[key.name] = true;\n    });\n  }\n  return regex\n}\n\nfunction normalizePath (\n  path,\n  parent,\n  strict\n) {\n  if (!strict) { path = path.replace(/\\/$/, ''); }\n  if (path[0] === '/') { return path }\n  if (parent == null) { return path }\n  return cleanPath(((parent.path) + \"/\" + path))\n}\n\n/*  */\n\n\n\nfunction createMatcher (\n  routes,\n  router\n) {\n  var ref = createRouteMap(routes);\n  var pathList = ref.pathList;\n  var pathMap = ref.pathMap;\n  var nameMap = ref.nameMap;\n\n  function addRoutes (routes) {\n    createRouteMap(routes, pathList, pathMap, nameMap);\n  }\n\n  function match (\n    raw,\n    currentRoute,\n    redirectedFrom\n  ) {\n    var location = normalizeLocation(raw, currentRoute, false, router);\n    var name = location.name;\n\n    if (name) {\n      var record = nameMap[name];\n      if (process.env.NODE_ENV !== 'production') {\n        warn(record, (\"Route with name '\" + name + \"' does not exist\"));\n      }\n      if (!record) { return _createRoute(null, location) }\n      var paramNames = record.regex.keys\n        .filter(function (key) { return !key.optional; })\n        .map(function (key) { return key.name; });\n\n      if (typeof location.params !== 'object') {\n        location.params = {};\n      }\n\n      if (currentRoute && typeof currentRoute.params === 'object') {\n        for (var key in currentRoute.params) {\n          if (!(key in location.params) && paramNames.indexOf(key) > -1) {\n            location.params[key] = currentRoute.params[key];\n          }\n        }\n      }\n\n      location.path = fillParams(record.path, location.params, (\"named route \\\"\" + name + \"\\\"\"));\n      return _createRoute(record, location, redirectedFrom)\n    } else if (location.path) {\n      location.params = {};\n      for (var i = 0; i < pathList.length; i++) {\n        var path = pathList[i];\n        var record$1 = pathMap[path];\n        if (matchRoute(record$1.regex, location.path, location.params)) {\n          return _createRoute(record$1, location, redirectedFrom)\n        }\n      }\n    }\n    // no match\n    return _createRoute(null, location)\n  }\n\n  function redirect (\n    record,\n    location\n  ) {\n    var originalRedirect = record.redirect;\n    var redirect = typeof originalRedirect === 'function'\n      ? originalRedirect(createRoute(record, location, null, router))\n      : originalRedirect;\n\n    if (typeof redirect === 'string') {\n      redirect = { path: redirect };\n    }\n\n    if (!redirect || typeof redirect !== 'object') {\n      if (process.env.NODE_ENV !== 'production') {\n        warn(\n          false, (\"invalid redirect option: \" + (JSON.stringify(redirect)))\n        );\n      }\n      return _createRoute(null, location)\n    }\n\n    var re = redirect;\n    var name = re.name;\n    var path = re.path;\n    var query = location.query;\n    var hash = location.hash;\n    var params = location.params;\n    query = re.hasOwnProperty('query') ? re.query : query;\n    hash = re.hasOwnProperty('hash') ? re.hash : hash;\n    params = re.hasOwnProperty('params') ? re.params : params;\n\n    if (name) {\n      // resolved named direct\n      var targetRecord = nameMap[name];\n      if (process.env.NODE_ENV !== 'production') {\n        assert(targetRecord, (\"redirect failed: named route \\\"\" + name + \"\\\" not found.\"));\n      }\n      return match({\n        _normalized: true,\n        name: name,\n        query: query,\n        hash: hash,\n        params: params\n      }, undefined, location)\n    } else if (path) {\n      // 1. resolve relative redirect\n      var rawPath = resolveRecordPath(path, record);\n      // 2. resolve params\n      var resolvedPath = fillParams(rawPath, params, (\"redirect route with path \\\"\" + rawPath + \"\\\"\"));\n      // 3. rematch with existing query and hash\n      return match({\n        _normalized: true,\n        path: resolvedPath,\n        query: query,\n        hash: hash\n      }, undefined, location)\n    } else {\n      if (process.env.NODE_ENV !== 'production') {\n        warn(false, (\"invalid redirect option: \" + (JSON.stringify(redirect))));\n      }\n      return _createRoute(null, location)\n    }\n  }\n\n  function alias (\n    record,\n    location,\n    matchAs\n  ) {\n    var aliasedPath = fillParams(matchAs, location.params, (\"aliased route with path \\\"\" + matchAs + \"\\\"\"));\n    var aliasedMatch = match({\n      _normalized: true,\n      path: aliasedPath\n    });\n    if (aliasedMatch) {\n      var matched = aliasedMatch.matched;\n      var aliasedRecord = matched[matched.length - 1];\n      location.params = aliasedMatch.params;\n      return _createRoute(aliasedRecord, location)\n    }\n    return _createRoute(null, location)\n  }\n\n  function _createRoute (\n    record,\n    location,\n    redirectedFrom\n  ) {\n    if (record && record.redirect) {\n      return redirect(record, redirectedFrom || location)\n    }\n    if (record && record.matchAs) {\n      return alias(record, location, record.matchAs)\n    }\n    return createRoute(record, location, redirectedFrom, router)\n  }\n\n  return {\n    match: match,\n    addRoutes: addRoutes\n  }\n}\n\nfunction matchRoute (\n  regex,\n  path,\n  params\n) {\n  var m = path.match(regex);\n\n  if (!m) {\n    return false\n  } else if (!params) {\n    return true\n  }\n\n  for (var i = 1, len = m.length; i < len; ++i) {\n    var key = regex.keys[i - 1];\n    var val = typeof m[i] === 'string' ? decodeURIComponent(m[i]) : m[i];\n    if (key) {\n      // Fix #1994: using * with props: true generates a param named 0\n      params[key.name || 'pathMatch'] = val;\n    }\n  }\n\n  return true\n}\n\nfunction resolveRecordPath (path, record) {\n  return resolvePath(path, record.parent ? record.parent.path : '/', true)\n}\n\n/*  */\n\n// use User Timing api (if present) for more accurate key precision\nvar Time =\n  inBrowser && window.performance && window.performance.now\n    ? window.performance\n    : Date;\n\nfunction genStateKey () {\n  return Time.now().toFixed(3)\n}\n\nvar _key = genStateKey();\n\nfunction getStateKey () {\n  return _key\n}\n\nfunction setStateKey (key) {\n  return (_key = key)\n}\n\n/*  */\n\nvar positionStore = Object.create(null);\n\nfunction setupScroll () {\n  // Fix for #1585 for Firefox\n  // Fix for #2195 Add optional third attribute to workaround a bug in safari https://bugs.webkit.org/show_bug.cgi?id=182678\n  // Fix for #2774 Support for apps loaded from Windows file shares not mapped to network drives: replaced location.origin with\n  // window.location.protocol + '//' + window.location.host\n  // location.host contains the port and location.hostname doesn't\n  var protocolAndPath = window.location.protocol + '//' + window.location.host;\n  var absolutePath = window.location.href.replace(protocolAndPath, '');\n  // preserve existing history state as it could be overriden by the user\n  var stateCopy = extend({}, window.history.state);\n  stateCopy.key = getStateKey();\n  window.history.replaceState(stateCopy, '', absolutePath);\n  window.addEventListener('popstate', function (e) {\n    saveScrollPosition();\n    if (e.state && e.state.key) {\n      setStateKey(e.state.key);\n    }\n  });\n}\n\nfunction handleScroll (\n  router,\n  to,\n  from,\n  isPop\n) {\n  if (!router.app) {\n    return\n  }\n\n  var behavior = router.options.scrollBehavior;\n  if (!behavior) {\n    return\n  }\n\n  if (process.env.NODE_ENV !== 'production') {\n    assert(typeof behavior === 'function', \"scrollBehavior must be a function\");\n  }\n\n  // wait until re-render finishes before scrolling\n  router.app.$nextTick(function () {\n    var position = getScrollPosition();\n    var shouldScroll = behavior.call(\n      router,\n      to,\n      from,\n      isPop ? position : null\n    );\n\n    if (!shouldScroll) {\n      return\n    }\n\n    if (typeof shouldScroll.then === 'function') {\n      shouldScroll\n        .then(function (shouldScroll) {\n          scrollToPosition((shouldScroll), position);\n        })\n        .catch(function (err) {\n          if (process.env.NODE_ENV !== 'production') {\n            assert(false, err.toString());\n          }\n        });\n    } else {\n      scrollToPosition(shouldScroll, position);\n    }\n  });\n}\n\nfunction saveScrollPosition () {\n  var key = getStateKey();\n  if (key) {\n    positionStore[key] = {\n      x: window.pageXOffset,\n      y: window.pageYOffset\n    };\n  }\n}\n\nfunction getScrollPosition () {\n  var key = getStateKey();\n  if (key) {\n    return positionStore[key]\n  }\n}\n\nfunction getElementPosition (el, offset) {\n  var docEl = document.documentElement;\n  var docRect = docEl.getBoundingClientRect();\n  var elRect = el.getBoundingClientRect();\n  return {\n    x: elRect.left - docRect.left - offset.x,\n    y: elRect.top - docRect.top - offset.y\n  }\n}\n\nfunction isValidPosition (obj) {\n  return isNumber(obj.x) || isNumber(obj.y)\n}\n\nfunction normalizePosition (obj) {\n  return {\n    x: isNumber(obj.x) ? obj.x : window.pageXOffset,\n    y: isNumber(obj.y) ? obj.y : window.pageYOffset\n  }\n}\n\nfunction normalizeOffset (obj) {\n  return {\n    x: isNumber(obj.x) ? obj.x : 0,\n    y: isNumber(obj.y) ? obj.y : 0\n  }\n}\n\nfunction isNumber (v) {\n  return typeof v === 'number'\n}\n\nvar hashStartsWithNumberRE = /^#\\d/;\n\nfunction scrollToPosition (shouldScroll, position) {\n  var isObject = typeof shouldScroll === 'object';\n  if (isObject && typeof shouldScroll.selector === 'string') {\n    // getElementById would still fail if the selector contains a more complicated query like #main[data-attr]\n    // but at the same time, it doesn't make much sense to select an element with an id and an extra selector\n    var el = hashStartsWithNumberRE.test(shouldScroll.selector) // $flow-disable-line\n      ? document.getElementById(shouldScroll.selector.slice(1)) // $flow-disable-line\n      : document.querySelector(shouldScroll.selector);\n\n    if (el) {\n      var offset =\n        shouldScroll.offset && typeof shouldScroll.offset === 'object'\n          ? shouldScroll.offset\n          : {};\n      offset = normalizeOffset(offset);\n      position = getElementPosition(el, offset);\n    } else if (isValidPosition(shouldScroll)) {\n      position = normalizePosition(shouldScroll);\n    }\n  } else if (isObject && isValidPosition(shouldScroll)) {\n    position = normalizePosition(shouldScroll);\n  }\n\n  if (position) {\n    window.scrollTo(position.x, position.y);\n  }\n}\n\n/*  */\n\nvar supportsPushState =\n  inBrowser &&\n  (function () {\n    var ua = window.navigator.userAgent;\n\n    if (\n      (ua.indexOf('Android 2.') !== -1 || ua.indexOf('Android 4.0') !== -1) &&\n      ua.indexOf('Mobile Safari') !== -1 &&\n      ua.indexOf('Chrome') === -1 &&\n      ua.indexOf('Windows Phone') === -1\n    ) {\n      return false\n    }\n\n    return window.history && 'pushState' in window.history\n  })();\n\nfunction pushState (url, replace) {\n  saveScrollPosition();\n  // try...catch the pushState call to get around Safari\n  // DOM Exception 18 where it limits to 100 pushState calls\n  var history = window.history;\n  try {\n    if (replace) {\n      // preserve existing history state as it could be overriden by the user\n      var stateCopy = extend({}, history.state);\n      stateCopy.key = getStateKey();\n      history.replaceState(stateCopy, '', url);\n    } else {\n      history.pushState({ key: setStateKey(genStateKey()) }, '', url);\n    }\n  } catch (e) {\n    window.location[replace ? 'replace' : 'assign'](url);\n  }\n}\n\nfunction replaceState (url) {\n  pushState(url, true);\n}\n\n/*  */\n\nfunction runQueue (queue, fn, cb) {\n  var step = function (index) {\n    if (index >= queue.length) {\n      cb();\n    } else {\n      if (queue[index]) {\n        fn(queue[index], function () {\n          step(index + 1);\n        });\n      } else {\n        step(index + 1);\n      }\n    }\n  };\n  step(0);\n}\n\n/*  */\n\nfunction resolveAsyncComponents (matched) {\n  return function (to, from, next) {\n    var hasAsync = false;\n    var pending = 0;\n    var error = null;\n\n    flatMapComponents(matched, function (def, _, match, key) {\n      // if it's a function and doesn't have cid attached,\n      // assume it's an async component resolve function.\n      // we are not using Vue's default async resolving mechanism because\n      // we want to halt the navigation until the incoming component has been\n      // resolved.\n      if (typeof def === 'function' && def.cid === undefined) {\n        hasAsync = true;\n        pending++;\n\n        var resolve = once(function (resolvedDef) {\n          if (isESModule(resolvedDef)) {\n            resolvedDef = resolvedDef.default;\n          }\n          // save resolved on async factory in case it's used elsewhere\n          def.resolved = typeof resolvedDef === 'function'\n            ? resolvedDef\n            : _Vue.extend(resolvedDef);\n          match.components[key] = resolvedDef;\n          pending--;\n          if (pending <= 0) {\n            next();\n          }\n        });\n\n        var reject = once(function (reason) {\n          var msg = \"Failed to resolve async component \" + key + \": \" + reason;\n          process.env.NODE_ENV !== 'production' && warn(false, msg);\n          if (!error) {\n            error = isError(reason)\n              ? reason\n              : new Error(msg);\n            next(error);\n          }\n        });\n\n        var res;\n        try {\n          res = def(resolve, reject);\n        } catch (e) {\n          reject(e);\n        }\n        if (res) {\n          if (typeof res.then === 'function') {\n            res.then(resolve, reject);\n          } else {\n            // new syntax in Vue 2.3\n            var comp = res.component;\n            if (comp && typeof comp.then === 'function') {\n              comp.then(resolve, reject);\n            }\n          }\n        }\n      }\n    });\n\n    if (!hasAsync) { next(); }\n  }\n}\n\nfunction flatMapComponents (\n  matched,\n  fn\n) {\n  return flatten(matched.map(function (m) {\n    return Object.keys(m.components).map(function (key) { return fn(\n      m.components[key],\n      m.instances[key],\n      m, key\n    ); })\n  }))\n}\n\nfunction flatten (arr) {\n  return Array.prototype.concat.apply([], arr)\n}\n\nvar hasSymbol =\n  typeof Symbol === 'function' &&\n  typeof Symbol.toStringTag === 'symbol';\n\nfunction isESModule (obj) {\n  return obj.__esModule || (hasSymbol && obj[Symbol.toStringTag] === 'Module')\n}\n\n// in Webpack 2, require.ensure now also returns a Promise\n// so the resolve/reject functions may get called an extra time\n// if the user uses an arrow function shorthand that happens to\n// return that Promise.\nfunction once (fn) {\n  var called = false;\n  return function () {\n    var args = [], len = arguments.length;\n    while ( len-- ) args[ len ] = arguments[ len ];\n\n    if (called) { return }\n    called = true;\n    return fn.apply(this, args)\n  }\n}\n\nvar NavigationDuplicated = /*@__PURE__*/(function (Error) {\n  function NavigationDuplicated (normalizedLocation) {\n    Error.call(this);\n    this.name = this._name = 'NavigationDuplicated';\n    // passing the message to super() doesn't seem to work in the transpiled version\n    this.message = \"Navigating to current location (\\\"\" + (normalizedLocation.fullPath) + \"\\\") is not allowed\";\n    // add a stack property so services like Sentry can correctly display it\n    Object.defineProperty(this, 'stack', {\n      value: new Error().stack,\n      writable: true,\n      configurable: true\n    });\n    // we could also have used\n    // Error.captureStackTrace(this, this.constructor)\n    // but it only exists on node and chrome\n  }\n\n  if ( Error ) NavigationDuplicated.__proto__ = Error;\n  NavigationDuplicated.prototype = Object.create( Error && Error.prototype );\n  NavigationDuplicated.prototype.constructor = NavigationDuplicated;\n\n  return NavigationDuplicated;\n}(Error));\n\n// support IE9\nNavigationDuplicated._name = 'NavigationDuplicated';\n\n/*  */\n\nvar History = function History (router, base) {\n  this.router = router;\n  this.base = normalizeBase(base);\n  // start with a route object that stands for \"nowhere\"\n  this.current = START;\n  this.pending = null;\n  this.ready = false;\n  this.readyCbs = [];\n  this.readyErrorCbs = [];\n  this.errorCbs = [];\n};\n\nHistory.prototype.listen = function listen (cb) {\n  this.cb = cb;\n};\n\nHistory.prototype.onReady = function onReady (cb, errorCb) {\n  if (this.ready) {\n    cb();\n  } else {\n    this.readyCbs.push(cb);\n    if (errorCb) {\n      this.readyErrorCbs.push(errorCb);\n    }\n  }\n};\n\nHistory.prototype.onError = function onError (errorCb) {\n  this.errorCbs.push(errorCb);\n};\n\nHistory.prototype.transitionTo = function transitionTo (\n  location,\n  onComplete,\n  onAbort\n) {\n    var this$1 = this;\n\n  var route = this.router.match(location, this.current);\n  this.confirmTransition(\n    route,\n    function () {\n      this$1.updateRoute(route);\n      onComplete && onComplete(route);\n      this$1.ensureURL();\n\n      // fire ready cbs once\n      if (!this$1.ready) {\n        this$1.ready = true;\n        this$1.readyCbs.forEach(function (cb) {\n          cb(route);\n        });\n      }\n    },\n    function (err) {\n      if (onAbort) {\n        onAbort(err);\n      }\n      if (err && !this$1.ready) {\n        this$1.ready = true;\n        this$1.readyErrorCbs.forEach(function (cb) {\n          cb(err);\n        });\n      }\n    }\n  );\n};\n\nHistory.prototype.confirmTransition = function confirmTransition (route, onComplete, onAbort) {\n    var this$1 = this;\n\n  var current = this.current;\n  var abort = function (err) {\n    // after merging https://github.com/vuejs/vue-router/pull/2771 we\n    // When the user navigates through history through back/forward buttons\n    // we do not want to throw the error. We only throw it if directly calling\n    // push/replace. That's why it's not included in isError\n    if (!isExtendedError(NavigationDuplicated, err) && isError(err)) {\n      if (this$1.errorCbs.length) {\n        this$1.errorCbs.forEach(function (cb) {\n          cb(err);\n        });\n      } else {\n        warn(false, 'uncaught error during route navigation:');\n        console.error(err);\n      }\n    }\n    onAbort && onAbort(err);\n  };\n  if (\n    isSameRoute(route, current) &&\n    // in the case the route map has been dynamically appended to\n    route.matched.length === current.matched.length\n  ) {\n    this.ensureURL();\n    return abort(new NavigationDuplicated(route))\n  }\n\n  var ref = resolveQueue(\n    this.current.matched,\n    route.matched\n  );\n    var updated = ref.updated;\n    var deactivated = ref.deactivated;\n    var activated = ref.activated;\n\n  var queue = [].concat(\n    // in-component leave guards\n    extractLeaveGuards(deactivated),\n    // global before hooks\n    this.router.beforeHooks,\n    // in-component update hooks\n    extractUpdateHooks(updated),\n    // in-config enter guards\n    activated.map(function (m) { return m.beforeEnter; }),\n    // async components\n    resolveAsyncComponents(activated)\n  );\n\n  this.pending = route;\n  var iterator = function (hook, next) {\n    if (this$1.pending !== route) {\n      return abort()\n    }\n    try {\n      hook(route, current, function (to) {\n        if (to === false || isError(to)) {\n          // next(false) -> abort navigation, ensure current URL\n          this$1.ensureURL(true);\n          abort(to);\n        } else if (\n          typeof to === 'string' ||\n          (typeof to === 'object' &&\n            (typeof to.path === 'string' || typeof to.name === 'string'))\n        ) {\n          // next('/') or next({ path: '/' }) -> redirect\n          abort();\n          if (typeof to === 'object' && to.replace) {\n            this$1.replace(to);\n          } else {\n            this$1.push(to);\n          }\n        } else {\n          // confirm transition and pass on the value\n          next(to);\n        }\n      });\n    } catch (e) {\n      abort(e);\n    }\n  };\n\n  runQueue(queue, iterator, function () {\n    var postEnterCbs = [];\n    var isValid = function () { return this$1.current === route; };\n    // wait until async components are resolved before\n    // extracting in-component enter guards\n    var enterGuards = extractEnterGuards(activated, postEnterCbs, isValid);\n    var queue = enterGuards.concat(this$1.router.resolveHooks);\n    runQueue(queue, iterator, function () {\n      if (this$1.pending !== route) {\n        return abort()\n      }\n      this$1.pending = null;\n      onComplete(route);\n      if (this$1.router.app) {\n        this$1.router.app.$nextTick(function () {\n          postEnterCbs.forEach(function (cb) {\n            cb();\n          });\n        });\n      }\n    });\n  });\n};\n\nHistory.prototype.updateRoute = function updateRoute (route) {\n  var prev = this.current;\n  this.current = route;\n  this.cb && this.cb(route);\n  this.router.afterHooks.forEach(function (hook) {\n    hook && hook(route, prev);\n  });\n};\n\nfunction normalizeBase (base) {\n  if (!base) {\n    if (inBrowser) {\n      // respect <base> tag\n      var baseEl = document.querySelector('base');\n      base = (baseEl && baseEl.getAttribute('href')) || '/';\n      // strip full URL origin\n      base = base.replace(/^https?:\\/\\/[^\\/]+/, '');\n    } else {\n      base = '/';\n    }\n  }\n  // make sure there's the starting slash\n  if (base.charAt(0) !== '/') {\n    base = '/' + base;\n  }\n  // remove trailing slash\n  return base.replace(/\\/$/, '')\n}\n\nfunction resolveQueue (\n  current,\n  next\n) {\n  var i;\n  var max = Math.max(current.length, next.length);\n  for (i = 0; i < max; i++) {\n    if (current[i] !== next[i]) {\n      break\n    }\n  }\n  return {\n    updated: next.slice(0, i),\n    activated: next.slice(i),\n    deactivated: current.slice(i)\n  }\n}\n\nfunction extractGuards (\n  records,\n  name,\n  bind,\n  reverse\n) {\n  var guards = flatMapComponents(records, function (def, instance, match, key) {\n    var guard = extractGuard(def, name);\n    if (guard) {\n      return Array.isArray(guard)\n        ? guard.map(function (guard) { return bind(guard, instance, match, key); })\n        : bind(guard, instance, match, key)\n    }\n  });\n  return flatten(reverse ? guards.reverse() : guards)\n}\n\nfunction extractGuard (\n  def,\n  key\n) {\n  if (typeof def !== 'function') {\n    // extend now so that global mixins are applied.\n    def = _Vue.extend(def);\n  }\n  return def.options[key]\n}\n\nfunction extractLeaveGuards (deactivated) {\n  return extractGuards(deactivated, 'beforeRouteLeave', bindGuard, true)\n}\n\nfunction extractUpdateHooks (updated) {\n  return extractGuards(updated, 'beforeRouteUpdate', bindGuard)\n}\n\nfunction bindGuard (guard, instance) {\n  if (instance) {\n    return function boundRouteGuard () {\n      return guard.apply(instance, arguments)\n    }\n  }\n}\n\nfunction extractEnterGuards (\n  activated,\n  cbs,\n  isValid\n) {\n  return extractGuards(\n    activated,\n    'beforeRouteEnter',\n    function (guard, _, match, key) {\n      return bindEnterGuard(guard, match, key, cbs, isValid)\n    }\n  )\n}\n\nfunction bindEnterGuard (\n  guard,\n  match,\n  key,\n  cbs,\n  isValid\n) {\n  return function routeEnterGuard (to, from, next) {\n    return guard(to, from, function (cb) {\n      if (typeof cb === 'function') {\n        cbs.push(function () {\n          // #750\n          // if a router-view is wrapped with an out-in transition,\n          // the instance may not have been registered at this time.\n          // we will need to poll for registration until current route\n          // is no longer valid.\n          poll(cb, match.instances, key, isValid);\n        });\n      }\n      next(cb);\n    })\n  }\n}\n\nfunction poll (\n  cb, // somehow flow cannot infer this is a function\n  instances,\n  key,\n  isValid\n) {\n  if (\n    instances[key] &&\n    !instances[key]._isBeingDestroyed // do not reuse being destroyed instance\n  ) {\n    cb(instances[key]);\n  } else if (isValid()) {\n    setTimeout(function () {\n      poll(cb, instances, key, isValid);\n    }, 16);\n  }\n}\n\n/*  */\n\nvar HTML5History = /*@__PURE__*/(function (History) {\n  function HTML5History (router, base) {\n    var this$1 = this;\n\n    History.call(this, router, base);\n\n    var expectScroll = router.options.scrollBehavior;\n    var supportsScroll = supportsPushState && expectScroll;\n\n    if (supportsScroll) {\n      setupScroll();\n    }\n\n    var initLocation = getLocation(this.base);\n    window.addEventListener('popstate', function (e) {\n      var current = this$1.current;\n\n      // Avoiding first `popstate` event dispatched in some browsers but first\n      // history route not updated since async guard at the same time.\n      var location = getLocation(this$1.base);\n      if (this$1.current === START && location === initLocation) {\n        return\n      }\n\n      this$1.transitionTo(location, function (route) {\n        if (supportsScroll) {\n          handleScroll(router, route, current, true);\n        }\n      });\n    });\n  }\n\n  if ( History ) HTML5History.__proto__ = History;\n  HTML5History.prototype = Object.create( History && History.prototype );\n  HTML5History.prototype.constructor = HTML5History;\n\n  HTML5History.prototype.go = function go (n) {\n    window.history.go(n);\n  };\n\n  HTML5History.prototype.push = function push (location, onComplete, onAbort) {\n    var this$1 = this;\n\n    var ref = this;\n    var fromRoute = ref.current;\n    this.transitionTo(location, function (route) {\n      pushState(cleanPath(this$1.base + route.fullPath));\n      handleScroll(this$1.router, route, fromRoute, false);\n      onComplete && onComplete(route);\n    }, onAbort);\n  };\n\n  HTML5History.prototype.replace = function replace (location, onComplete, onAbort) {\n    var this$1 = this;\n\n    var ref = this;\n    var fromRoute = ref.current;\n    this.transitionTo(location, function (route) {\n      replaceState(cleanPath(this$1.base + route.fullPath));\n      handleScroll(this$1.router, route, fromRoute, false);\n      onComplete && onComplete(route);\n    }, onAbort);\n  };\n\n  HTML5History.prototype.ensureURL = function ensureURL (push) {\n    if (getLocation(this.base) !== this.current.fullPath) {\n      var current = cleanPath(this.base + this.current.fullPath);\n      push ? pushState(current) : replaceState(current);\n    }\n  };\n\n  HTML5History.prototype.getCurrentLocation = function getCurrentLocation () {\n    return getLocation(this.base)\n  };\n\n  return HTML5History;\n}(History));\n\nfunction getLocation (base) {\n  var path = decodeURI(window.location.pathname);\n  if (base && path.indexOf(base) === 0) {\n    path = path.slice(base.length);\n  }\n  return (path || '/') + window.location.search + window.location.hash\n}\n\n/*  */\n\nvar HashHistory = /*@__PURE__*/(function (History) {\n  function HashHistory (router, base, fallback) {\n    History.call(this, router, base);\n    // check history fallback deeplinking\n    if (fallback && checkFallback(this.base)) {\n      return\n    }\n    ensureSlash();\n  }\n\n  if ( History ) HashHistory.__proto__ = History;\n  HashHistory.prototype = Object.create( History && History.prototype );\n  HashHistory.prototype.constructor = HashHistory;\n\n  // this is delayed until the app mounts\n  // to avoid the hashchange listener being fired too early\n  HashHistory.prototype.setupListeners = function setupListeners () {\n    var this$1 = this;\n\n    var router = this.router;\n    var expectScroll = router.options.scrollBehavior;\n    var supportsScroll = supportsPushState && expectScroll;\n\n    if (supportsScroll) {\n      setupScroll();\n    }\n\n    window.addEventListener(\n      supportsPushState ? 'popstate' : 'hashchange',\n      function () {\n        var current = this$1.current;\n        if (!ensureSlash()) {\n          return\n        }\n        this$1.transitionTo(getHash(), function (route) {\n          if (supportsScroll) {\n            handleScroll(this$1.router, route, current, true);\n          }\n          if (!supportsPushState) {\n            replaceHash(route.fullPath);\n          }\n        });\n      }\n    );\n  };\n\n  HashHistory.prototype.push = function push (location, onComplete, onAbort) {\n    var this$1 = this;\n\n    var ref = this;\n    var fromRoute = ref.current;\n    this.transitionTo(\n      location,\n      function (route) {\n        pushHash(route.fullPath);\n        handleScroll(this$1.router, route, fromRoute, false);\n        onComplete && onComplete(route);\n      },\n      onAbort\n    );\n  };\n\n  HashHistory.prototype.replace = function replace (location, onComplete, onAbort) {\n    var this$1 = this;\n\n    var ref = this;\n    var fromRoute = ref.current;\n    this.transitionTo(\n      location,\n      function (route) {\n        replaceHash(route.fullPath);\n        handleScroll(this$1.router, route, fromRoute, false);\n        onComplete && onComplete(route);\n      },\n      onAbort\n    );\n  };\n\n  HashHistory.prototype.go = function go (n) {\n    window.history.go(n);\n  };\n\n  HashHistory.prototype.ensureURL = function ensureURL (push) {\n    var current = this.current.fullPath;\n    if (getHash() !== current) {\n      push ? pushHash(current) : replaceHash(current);\n    }\n  };\n\n  HashHistory.prototype.getCurrentLocation = function getCurrentLocation () {\n    return getHash()\n  };\n\n  return HashHistory;\n}(History));\n\nfunction checkFallback (base) {\n  var location = getLocation(base);\n  if (!/^\\/#/.test(location)) {\n    window.location.replace(cleanPath(base + '/#' + location));\n    return true\n  }\n}\n\nfunction ensureSlash () {\n  var path = getHash();\n  if (path.charAt(0) === '/') {\n    return true\n  }\n  replaceHash('/' + path);\n  return false\n}\n\nfunction getHash () {\n  // We can't use window.location.hash here because it's not\n  // consistent across browsers - Firefox will pre-decode it!\n  var href = window.location.href;\n  var index = href.indexOf('#');\n  // empty path\n  if (index < 0) { return '' }\n\n  href = href.slice(index + 1);\n  // decode the hash but not the search or hash\n  // as search(query) is already decoded\n  // https://github.com/vuejs/vue-router/issues/2708\n  var searchIndex = href.indexOf('?');\n  if (searchIndex < 0) {\n    var hashIndex = href.indexOf('#');\n    if (hashIndex > -1) {\n      href = decodeURI(href.slice(0, hashIndex)) + href.slice(hashIndex);\n    } else { href = decodeURI(href); }\n  } else {\n    href = decodeURI(href.slice(0, searchIndex)) + href.slice(searchIndex);\n  }\n\n  return href\n}\n\nfunction getUrl (path) {\n  var href = window.location.href;\n  var i = href.indexOf('#');\n  var base = i >= 0 ? href.slice(0, i) : href;\n  return (base + \"#\" + path)\n}\n\nfunction pushHash (path) {\n  if (supportsPushState) {\n    pushState(getUrl(path));\n  } else {\n    window.location.hash = path;\n  }\n}\n\nfunction replaceHash (path) {\n  if (supportsPushState) {\n    replaceState(getUrl(path));\n  } else {\n    window.location.replace(getUrl(path));\n  }\n}\n\n/*  */\n\nvar AbstractHistory = /*@__PURE__*/(function (History) {\n  function AbstractHistory (router, base) {\n    History.call(this, router, base);\n    this.stack = [];\n    this.index = -1;\n  }\n\n  if ( History ) AbstractHistory.__proto__ = History;\n  AbstractHistory.prototype = Object.create( History && History.prototype );\n  AbstractHistory.prototype.constructor = AbstractHistory;\n\n  AbstractHistory.prototype.push = function push (location, onComplete, onAbort) {\n    var this$1 = this;\n\n    this.transitionTo(\n      location,\n      function (route) {\n        this$1.stack = this$1.stack.slice(0, this$1.index + 1).concat(route);\n        this$1.index++;\n        onComplete && onComplete(route);\n      },\n      onAbort\n    );\n  };\n\n  AbstractHistory.prototype.replace = function replace (location, onComplete, onAbort) {\n    var this$1 = this;\n\n    this.transitionTo(\n      location,\n      function (route) {\n        this$1.stack = this$1.stack.slice(0, this$1.index).concat(route);\n        onComplete && onComplete(route);\n      },\n      onAbort\n    );\n  };\n\n  AbstractHistory.prototype.go = function go (n) {\n    var this$1 = this;\n\n    var targetIndex = this.index + n;\n    if (targetIndex < 0 || targetIndex >= this.stack.length) {\n      return\n    }\n    var route = this.stack[targetIndex];\n    this.confirmTransition(\n      route,\n      function () {\n        this$1.index = targetIndex;\n        this$1.updateRoute(route);\n      },\n      function (err) {\n        if (isExtendedError(NavigationDuplicated, err)) {\n          this$1.index = targetIndex;\n        }\n      }\n    );\n  };\n\n  AbstractHistory.prototype.getCurrentLocation = function getCurrentLocation () {\n    var current = this.stack[this.stack.length - 1];\n    return current ? current.fullPath : '/'\n  };\n\n  AbstractHistory.prototype.ensureURL = function ensureURL () {\n    // noop\n  };\n\n  return AbstractHistory;\n}(History));\n\n/*  */\n\n\n\nvar VueRouter = function VueRouter (options) {\n  if ( options === void 0 ) options = {};\n\n  this.app = null;\n  this.apps = [];\n  this.options = options;\n  this.beforeHooks = [];\n  this.resolveHooks = [];\n  this.afterHooks = [];\n  this.matcher = createMatcher(options.routes || [], this);\n\n  var mode = options.mode || 'hash';\n  this.fallback = mode === 'history' && !supportsPushState && options.fallback !== false;\n  if (this.fallback) {\n    mode = 'hash';\n  }\n  if (!inBrowser) {\n    mode = 'abstract';\n  }\n  this.mode = mode;\n\n  switch (mode) {\n    case 'history':\n      this.history = new HTML5History(this, options.base);\n      break\n    case 'hash':\n      this.history = new HashHistory(this, options.base, this.fallback);\n      break\n    case 'abstract':\n      this.history = new AbstractHistory(this, options.base);\n      break\n    default:\n      if (process.env.NODE_ENV !== 'production') {\n        assert(false, (\"invalid mode: \" + mode));\n      }\n  }\n};\n\nvar prototypeAccessors = { currentRoute: { configurable: true } };\n\nVueRouter.prototype.match = function match (\n  raw,\n  current,\n  redirectedFrom\n) {\n  return this.matcher.match(raw, current, redirectedFrom)\n};\n\nprototypeAccessors.currentRoute.get = function () {\n  return this.history && this.history.current\n};\n\nVueRouter.prototype.init = function init (app /* Vue component instance */) {\n    var this$1 = this;\n\n  process.env.NODE_ENV !== 'production' && assert(\n    install.installed,\n    \"not installed. Make sure to call `Vue.use(VueRouter)` \" +\n    \"before creating root instance.\"\n  );\n\n  this.apps.push(app);\n\n  // set up app destroyed handler\n  // https://github.com/vuejs/vue-router/issues/2639\n  app.$once('hook:destroyed', function () {\n    // clean out app from this.apps array once destroyed\n    var index = this$1.apps.indexOf(app);\n    if (index > -1) { this$1.apps.splice(index, 1); }\n    // ensure we still have a main app or null if no apps\n    // we do not release the router so it can be reused\n    if (this$1.app === app) { this$1.app = this$1.apps[0] || null; }\n  });\n\n  // main app previously initialized\n  // return as we don't need to set up new history listener\n  if (this.app) {\n    return\n  }\n\n  this.app = app;\n\n  var history = this.history;\n\n  if (history instanceof HTML5History) {\n    history.transitionTo(history.getCurrentLocation());\n  } else if (history instanceof HashHistory) {\n    var setupHashListener = function () {\n      history.setupListeners();\n    };\n    history.transitionTo(\n      history.getCurrentLocation(),\n      setupHashListener,\n      setupHashListener\n    );\n  }\n\n  history.listen(function (route) {\n    this$1.apps.forEach(function (app) {\n      app._route = route;\n    });\n  });\n};\n\nVueRouter.prototype.beforeEach = function beforeEach (fn) {\n  return registerHook(this.beforeHooks, fn)\n};\n\nVueRouter.prototype.beforeResolve = function beforeResolve (fn) {\n  return registerHook(this.resolveHooks, fn)\n};\n\nVueRouter.prototype.afterEach = function afterEach (fn) {\n  return registerHook(this.afterHooks, fn)\n};\n\nVueRouter.prototype.onReady = function onReady (cb, errorCb) {\n  this.history.onReady(cb, errorCb);\n};\n\nVueRouter.prototype.onError = function onError (errorCb) {\n  this.history.onError(errorCb);\n};\n\nVueRouter.prototype.push = function push (location, onComplete, onAbort) {\n    var this$1 = this;\n\n  // $flow-disable-line\n  if (!onComplete && !onAbort && typeof Promise !== 'undefined') {\n    return new Promise(function (resolve, reject) {\n      this$1.history.push(location, resolve, reject);\n    })\n  } else {\n    this.history.push(location, onComplete, onAbort);\n  }\n};\n\nVueRouter.prototype.replace = function replace (location, onComplete, onAbort) {\n    var this$1 = this;\n\n  // $flow-disable-line\n  if (!onComplete && !onAbort && typeof Promise !== 'undefined') {\n    return new Promise(function (resolve, reject) {\n      this$1.history.replace(location, resolve, reject);\n    })\n  } else {\n    this.history.replace(location, onComplete, onAbort);\n  }\n};\n\nVueRouter.prototype.go = function go (n) {\n  this.history.go(n);\n};\n\nVueRouter.prototype.back = function back () {\n  this.go(-1);\n};\n\nVueRouter.prototype.forward = function forward () {\n  this.go(1);\n};\n\nVueRouter.prototype.getMatchedComponents = function getMatchedComponents (to) {\n  var route = to\n    ? to.matched\n      ? to\n      : this.resolve(to).route\n    : this.currentRoute;\n  if (!route) {\n    return []\n  }\n  return [].concat.apply([], route.matched.map(function (m) {\n    return Object.keys(m.components).map(function (key) {\n      return m.components[key]\n    })\n  }))\n};\n\nVueRouter.prototype.resolve = function resolve (\n  to,\n  current,\n  append\n) {\n  current = current || this.history.current;\n  var location = normalizeLocation(\n    to,\n    current,\n    append,\n    this\n  );\n  var route = this.match(location, current);\n  var fullPath = route.redirectedFrom || route.fullPath;\n  var base = this.history.base;\n  var href = createHref(base, fullPath, this.mode);\n  return {\n    location: location,\n    route: route,\n    href: href,\n    // for backwards compat\n    normalizedTo: location,\n    resolved: route\n  }\n};\n\nVueRouter.prototype.addRoutes = function addRoutes (routes) {\n  this.matcher.addRoutes(routes);\n  if (this.history.current !== START) {\n    this.history.transitionTo(this.history.getCurrentLocation());\n  }\n};\n\nObject.defineProperties( VueRouter.prototype, prototypeAccessors );\n\nfunction registerHook (list, fn) {\n  list.push(fn);\n  return function () {\n    var i = list.indexOf(fn);\n    if (i > -1) { list.splice(i, 1); }\n  }\n}\n\nfunction createHref (base, fullPath, mode) {\n  var path = mode === 'hash' ? '#' + fullPath : fullPath;\n  return base ? cleanPath(base + '/' + path) : path\n}\n\nVueRouter.install = install;\nVueRouter.version = '3.1.6';\n\nif (inBrowser && window.Vue) {\n  window.Vue.use(VueRouter);\n}\n\nexport default VueRouter;\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _Constants=require('../../streaming/constants/Constants');var _Constants2=_interopRequireDefault(_Constants);var _DashJSError=require('../../streaming/vo/DashJSError');var _DashJSError2=_interopRequireDefault(_DashJSError);var _FactoryMaker=require('../../core/FactoryMaker');var _FactoryMaker2=_interopRequireDefault(_FactoryMaker);function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}function RepresentationController(config){config=config||{};var eventBus=config.eventBus;var events=config.events;var errors=config.errors;var abrController=config.abrController;var dashMetrics=config.dashMetrics;var playbackController=config.playbackController;var timelineConverter=config.timelineConverter;var type=config.type;var streamId=config.streamId;var dashConstants=config.dashConstants;var instance=void 0,realAdaptation=void 0,updating=void 0,voAvailableRepresentations=void 0,currentVoRepresentation=void 0;function setup(){resetInitialSettings();eventBus.on(events.QUALITY_CHANGE_REQUESTED,onQualityChanged,instance);eventBus.on(events.REPRESENTATION_UPDATE_COMPLETED,onRepresentationUpdated,instance);eventBus.on(events.WALLCLOCK_TIME_UPDATED,onWallclockTimeUpdated,instance);eventBus.on(events.MANIFEST_VALIDITY_CHANGED,onManifestValidityChanged,instance);}function checkConfig(){if(!abrController||!dashMetrics||!playbackController||!timelineConverter){throw new Error(_Constants2.default.MISSING_CONFIG_ERROR);}}function getData(){return realAdaptation;}function isUpdating(){return updating;}function getCurrentRepresentation(){return currentVoRepresentation;}function resetInitialSettings(){realAdaptation=null;updating=true;voAvailableRepresentations=[];}function reset(){eventBus.off(events.QUALITY_CHANGE_REQUESTED,onQualityChanged,instance);eventBus.off(events.REPRESENTATION_UPDATE_COMPLETED,onRepresentationUpdated,instance);eventBus.off(events.WALLCLOCK_TIME_UPDATED,onWallclockTimeUpdated,instance);eventBus.off(events.MANIFEST_VALIDITY_CHANGED,onManifestValidityChanged,instance);resetInitialSettings();}function getType(){return type;}function getStreamId(){return streamId;}function updateData(newRealAdaptation,availableRepresentations,type,quality){checkConfig();startDataUpdate();voAvailableRepresentations=availableRepresentations;currentVoRepresentation=getRepresentationForQuality(quality);realAdaptation=newRealAdaptation;if(type!==_Constants2.default.VIDEO&&type!==_Constants2.default.AUDIO&&type!==_Constants2.default.FRAGMENTED_TEXT){endDataUpdate();return;}updateAvailabilityWindow(playbackController.getIsDynamic(),true);}function addRepresentationSwitch(){checkConfig();var now=new Date();var currentRepresentation=getCurrentRepresentation();var currentVideoTimeMs=playbackController.getTime()*1000;if(currentRepresentation){dashMetrics.addRepresentationSwitch(currentRepresentation.adaptation.type,now,currentVideoTimeMs,currentRepresentation.id);}}function getRepresentationForQuality(quality){return quality===null||quality===undefined||quality>=voAvailableRepresentations.length?null:voAvailableRepresentations[quality];}function getQualityForRepresentation(voRepresentation){return voAvailableRepresentations.indexOf(voRepresentation);}function isAllRepresentationsUpdated(){for(var i=0,ln=voAvailableRepresentations.length;i<ln;i++){var segmentInfoType=voAvailableRepresentations[i].segmentInfoType;if(voAvailableRepresentations[i].segmentAvailabilityRange===null||!voAvailableRepresentations[i].hasInitialization()||(segmentInfoType===dashConstants.SEGMENT_BASE||segmentInfoType===dashConstants.BASE_URL)&&!voAvailableRepresentations[i].segments){return false;}}return true;}function setExpectedLiveEdge(liveEdge){timelineConverter.setExpectedLiveEdge(liveEdge);dashMetrics.updateManifestUpdateInfo({presentationStartTime:liveEdge});}function updateRepresentation(representation,isDynamic){representation.segmentAvailabilityRange=timelineConverter.calcSegmentAvailabilityRange(representation,isDynamic);if(representation.segmentAvailabilityRange.end<representation.segmentAvailabilityRange.start&&!representation.useCalculatedLiveEdgeTime){var error=new _DashJSError2.default(errors.SEGMENTS_UNAVAILABLE_ERROR_CODE,errors.SEGMENTS_UNAVAILABLE_ERROR_MESSAGE,{availabilityDelay:representation.segmentAvailabilityRange.start-representation.segmentAvailabilityRange.end});endDataUpdate(error);return;}if(isDynamic){setExpectedLiveEdge(representation.segmentAvailabilityRange.end);}}function updateAvailabilityWindow(isDynamic,notifyUpdate){checkConfig();for(var i=0,ln=voAvailableRepresentations.length;i<ln;i++){updateRepresentation(voAvailableRepresentations[i],isDynamic);if(notifyUpdate){eventBus.trigger(events.REPRESENTATION_UPDATE_STARTED,{sender:instance,representation:voAvailableRepresentations[i]});}}}function resetAvailabilityWindow(){voAvailableRepresentations.forEach(function(rep){rep.segmentAvailabilityRange=null;});}function startDataUpdate(){updating=true;eventBus.trigger(events.DATA_UPDATE_STARTED,{sender:instance});}function endDataUpdate(error){updating=false;var eventArg={sender:instance,data:realAdaptation,currentRepresentation:currentVoRepresentation};if(error){eventArg.error=error;}eventBus.trigger(events.DATA_UPDATE_COMPLETED,eventArg);}function postponeUpdate(postponeTimePeriod){var delay=postponeTimePeriod;var update=function update(){if(isUpdating())return;startDataUpdate();// clear the segmentAvailabilityRange for all reps.\n// this ensures all are updated before the live edge search starts\nresetAvailabilityWindow();updateAvailabilityWindow(playbackController.getIsDynamic(),true);};eventBus.trigger(events.AST_IN_FUTURE,{delay:delay});setTimeout(update,delay);}function onRepresentationUpdated(e){if(e.sender.getType()!==getType()||e.sender.getStreamInfo().id!==streamId||!isUpdating())return;if(e.error){endDataUpdate(e.error);return;}var streamInfo=e.sender.getStreamInfo();var r=e.representation;var manifestUpdateInfo=dashMetrics.getCurrentManifestUpdate();var alreadyAdded=false;var postponeTimePeriod=0;var repInfo=void 0,err=void 0,repSwitch=void 0;if(r.adaptation.period.mpd.manifest.type===dashConstants.DYNAMIC&&!r.adaptation.period.mpd.manifest.ignorePostponeTimePeriod){var segmentAvailabilityTimePeriod=r.segmentAvailabilityRange.end-r.segmentAvailabilityRange.start;// We must put things to sleep unless till e.g. the startTime calculation in ScheduleController.onLiveEdgeSearchCompleted fall after the segmentAvailabilityRange.start\nvar liveDelay=playbackController.computeLiveDelay(currentVoRepresentation.segmentDuration,streamInfo.manifestInfo.DVRWindowSize);postponeTimePeriod=(liveDelay-segmentAvailabilityTimePeriod)*1000;}if(postponeTimePeriod>0){postponeUpdate(postponeTimePeriod);err=new _DashJSError2.default(errors.SEGMENTS_UPDATE_FAILED_ERROR_CODE,errors.SEGMENTS_UPDATE_FAILED_ERROR_MESSAGE);endDataUpdate(err);return;}if(manifestUpdateInfo){for(var i=0;i<manifestUpdateInfo.representationInfo.length;i++){repInfo=manifestUpdateInfo.representationInfo[i];if(repInfo.index===r.index&&repInfo.mediaType===getType()){alreadyAdded=true;break;}}if(!alreadyAdded){dashMetrics.addManifestUpdateRepresentationInfo(r,getType());}}if(isAllRepresentationsUpdated()){abrController.setPlaybackQuality(getType(),streamInfo,getQualityForRepresentation(currentVoRepresentation));dashMetrics.updateManifestUpdateInfo({latency:currentVoRepresentation.segmentAvailabilityRange.end-playbackController.getTime()});repSwitch=dashMetrics.getCurrentRepresentationSwitch(getCurrentRepresentation().adaptation.type);if(!repSwitch){addRepresentationSwitch();}endDataUpdate();}}function onWallclockTimeUpdated(e){if(e.isDynamic){updateAvailabilityWindow(e.isDynamic);}}function onQualityChanged(e){if(e.mediaType!==getType()||streamId!==e.streamInfo.id)return;currentVoRepresentation=getRepresentationForQuality(e.newQuality);addRepresentationSwitch();}function onManifestValidityChanged(e){if(e.newDuration){var representation=getCurrentRepresentation();if(representation&&representation.adaptation.period){var period=representation.adaptation.period;period.duration=e.newDuration;}}}instance={getData:getData,isUpdating:isUpdating,updateData:updateData,updateRepresentation:updateRepresentation,getCurrentRepresentation:getCurrentRepresentation,getRepresentationForQuality:getRepresentationForQuality,getType:getType,getStreamId:getStreamId,reset:reset};setup();return instance;}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n */RepresentationController.__dashjs_factory_name='RepresentationController';exports.default=_FactoryMaker2.default.getClassFactory(RepresentationController);\n//# sourceMappingURL=RepresentationController.js.map\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n *//**\n  * @ignore\n  */function HandlerHelpers(){return{reconstructFullMetricName:function reconstructFullMetricName(key,n,type){var mn=key;if(n){mn+='('+n;if(type&&type.length){mn+=','+type;}mn+=')';}return mn;},validateN:function validateN(n_ms){if(!n_ms){throw new Error('missing n');}if(isNaN(n_ms)){throw new Error('n is NaN');}// n is a positive integer is defined to refer to the metric\n// in which the buffer level is recorded every n ms.\nif(n_ms<0){throw new Error('n must be positive');}return n_ms;}};}HandlerHelpers.__dashjs_factory_name='HandlerHelpers';exports.default=dashjs.FactoryMaker.getSingletonFactory(HandlerHelpers);/* jshint ignore:line */\n//# sourceMappingURL=HandlerHelpers.js.map\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});exports.Debug=exports.FactoryMaker=exports.MediaPlayer=undefined;var _MediaPlayer=require('./src/streaming/MediaPlayer');var _MediaPlayer2=_interopRequireDefault(_MediaPlayer);var _FactoryMaker=require('./src/core/FactoryMaker');var _FactoryMaker2=_interopRequireDefault(_FactoryMaker);var _Debug=require('./src/core/Debug');var _Debug2=_interopRequireDefault(_Debug);var _Version=require('./src/core/Version');function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}// Shove both of these into the global scope\n/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n */var context=typeof window!=='undefined'&&window||global;var dashjs=context.dashjs;if(!dashjs){dashjs=context.dashjs={};}dashjs.MediaPlayer=_MediaPlayer2.default;dashjs.FactoryMaker=_FactoryMaker2.default;dashjs.Debug=_Debug2.default;dashjs.Version=(0,_Version.getVersionString)();exports.default=dashjs;exports.MediaPlayer=_MediaPlayer2.default;exports.FactoryMaker=_FactoryMaker2.default;exports.Debug=_Debug2.default;\n//# sourceMappingURL=index_mediaplayerOnly.js.map\n","'use strict';\n\nvar Cancel = require('./Cancel');\n\n/**\n * A `CancelToken` is an object that can be used to request cancellation of an operation.\n *\n * @class\n * @param {Function} executor The executor function.\n */\nfunction CancelToken(executor) {\n  if (typeof executor !== 'function') {\n    throw new TypeError('executor must be a function.');\n  }\n\n  var resolvePromise;\n  this.promise = new Promise(function promiseExecutor(resolve) {\n    resolvePromise = resolve;\n  });\n\n  var token = this;\n  executor(function cancel(message) {\n    if (token.reason) {\n      // Cancellation has already been requested\n      return;\n    }\n\n    token.reason = new Cancel(message);\n    resolvePromise(token.reason);\n  });\n}\n\n/**\n * Throws a `Cancel` if cancellation has been requested.\n */\nCancelToken.prototype.throwIfRequested = function throwIfRequested() {\n  if (this.reason) {\n    throw this.reason;\n  }\n};\n\n/**\n * Returns an object that contains a new `CancelToken` and a function that, when called,\n * cancels the `CancelToken`.\n */\nCancelToken.source = function source() {\n  var cancel;\n  var token = new CancelToken(function executor(c) {\n    cancel = c;\n  });\n  return {\n    token: token,\n    cancel: cancel\n  };\n};\n\nmodule.exports = CancelToken;\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _Constants=require('../constants/Constants');var _Constants2=_interopRequireDefault(_Constants);var _MetricsConstants=require('../constants/MetricsConstants');var _MetricsConstants2=_interopRequireDefault(_MetricsConstants);var _Stream=require('../Stream');var _Stream2=_interopRequireDefault(_Stream);var _ManifestUpdater=require('../ManifestUpdater');var _ManifestUpdater2=_interopRequireDefault(_ManifestUpdater);var _EventBus=require('../../core/EventBus');var _EventBus2=_interopRequireDefault(_EventBus);var _Events=require('../../core/events/Events');var _Events2=_interopRequireDefault(_Events);var _FactoryMaker=require('../../core/FactoryMaker');var _FactoryMaker2=_interopRequireDefault(_FactoryMaker);var _PlayList=require('../vo/metrics/PlayList');var _Debug=require('../../core/Debug');var _Debug2=_interopRequireDefault(_Debug);var _InitCache=require('../utils/InitCache');var _InitCache2=_interopRequireDefault(_InitCache);var _URLUtils=require('../utils/URLUtils');var _URLUtils2=_interopRequireDefault(_URLUtils);var _MediaPlayerEvents=require('../MediaPlayerEvents');var _MediaPlayerEvents2=_interopRequireDefault(_MediaPlayerEvents);var _TimeSyncController=require('./TimeSyncController');var _TimeSyncController2=_interopRequireDefault(_TimeSyncController);var _MediaSourceController=require('./MediaSourceController');var _MediaSourceController2=_interopRequireDefault(_MediaSourceController);var _DashJSError=require('../vo/DashJSError');var _DashJSError2=_interopRequireDefault(_DashJSError);var _Errors=require('../../core/errors/Errors');var _Errors2=_interopRequireDefault(_Errors);function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n */function StreamController(){// Check whether there is a gap every 40 wallClockUpdateEvent times\nvar STALL_THRESHOLD_TO_CHECK_GAPS=40;var PERIOD_PREFETCH_TIME=2000;var context=this.context;var eventBus=(0,_EventBus2.default)(context).getInstance();var instance=void 0,logger=void 0,capabilities=void 0,manifestUpdater=void 0,manifestLoader=void 0,manifestModel=void 0,adapter=void 0,dashMetrics=void 0,mediaSourceController=void 0,timeSyncController=void 0,baseURLController=void 0,abrController=void 0,mediaController=void 0,textController=void 0,initCache=void 0,urlUtils=void 0,errHandler=void 0,timelineConverter=void 0,streams=void 0,activeStream=void 0,protectionController=void 0,protectionData=void 0,autoPlay=void 0,isStreamSwitchingInProgress=void 0,hasMediaError=void 0,hasInitialisationError=void 0,mediaSource=void 0,videoModel=void 0,playbackController=void 0,mediaPlayerModel=void 0,isPaused=void 0,initialPlayback=void 0,videoTrackDetected=void 0,audioTrackDetected=void 0,isPeriodSwitchInProgress=void 0,playbackEndedTimerId=void 0,prefetchTimerId=void 0,wallclockTicked=void 0,buffers=void 0,useSmoothPeriodTransition=void 0,preloading=void 0,lastPlaybackTime=void 0,supportsChangeType=void 0,settings=void 0;function setup(){logger=(0,_Debug2.default)(context).getInstance().getLogger(instance);timeSyncController=(0,_TimeSyncController2.default)(context).getInstance();mediaSourceController=(0,_MediaSourceController2.default)(context).getInstance();initCache=(0,_InitCache2.default)(context).getInstance();urlUtils=(0,_URLUtils2.default)(context).getInstance();resetInitialSettings();}function initialize(autoPl,protData){checkConfig();autoPlay=autoPl;protectionData=protData;timelineConverter.initialize();manifestUpdater=(0,_ManifestUpdater2.default)(context).create();manifestUpdater.setConfig({manifestModel:manifestModel,adapter:adapter,manifestLoader:manifestLoader,errHandler:errHandler,settings:settings});manifestUpdater.initialize();registerEvents();}function registerEvents(){eventBus.on(_Events2.default.PLAYBACK_TIME_UPDATED,onPlaybackTimeUpdated,this);eventBus.on(_Events2.default.PLAYBACK_SEEKING,onPlaybackSeeking,this);eventBus.on(_Events2.default.PLAYBACK_ERROR,onPlaybackError,this);eventBus.on(_Events2.default.PLAYBACK_STARTED,onPlaybackStarted,this);eventBus.on(_Events2.default.PLAYBACK_PAUSED,onPlaybackPaused,this);eventBus.on(_Events2.default.PLAYBACK_ENDED,onEnded,this);eventBus.on(_Events2.default.MANIFEST_UPDATED,onManifestUpdated,this);eventBus.on(_Events2.default.BUFFERING_COMPLETED,onTrackBufferingCompleted,this);eventBus.on(_Events2.default.STREAM_BUFFERING_COMPLETED,onStreamBufferingCompleted,this);eventBus.on(_Events2.default.MANIFEST_VALIDITY_CHANGED,onManifestValidityChanged,this);eventBus.on(_Events2.default.TIME_SYNCHRONIZATION_COMPLETED,onTimeSyncCompleted,this);eventBus.on(_Events2.default.WALLCLOCK_TIME_UPDATED,onWallclockTimeUpdated,this);eventBus.on(_MediaPlayerEvents2.default.METRIC_ADDED,onMetricAdded,this);}function unRegisterEvents(){eventBus.off(_Events2.default.PLAYBACK_TIME_UPDATED,onPlaybackTimeUpdated,this);eventBus.off(_Events2.default.PLAYBACK_SEEKING,onPlaybackSeeking,this);eventBus.off(_Events2.default.PLAYBACK_ERROR,onPlaybackError,this);eventBus.off(_Events2.default.PLAYBACK_STARTED,onPlaybackStarted,this);eventBus.off(_Events2.default.PLAYBACK_PAUSED,onPlaybackPaused,this);eventBus.off(_Events2.default.PLAYBACK_ENDED,onEnded,this);eventBus.off(_Events2.default.MANIFEST_UPDATED,onManifestUpdated,this);eventBus.off(_Events2.default.BUFFERING_COMPLETED,onTrackBufferingCompleted,this);eventBus.off(_Events2.default.STREAM_BUFFERING_COMPLETED,onStreamBufferingCompleted,this);eventBus.off(_Events2.default.MANIFEST_VALIDITY_CHANGED,onManifestValidityChanged,this);eventBus.off(_Events2.default.TIME_SYNCHRONIZATION_COMPLETED,onTimeSyncCompleted,this);eventBus.off(_Events2.default.WALLCLOCK_TIME_UPDATED,onWallclockTimeUpdated,this);eventBus.off(_MediaPlayerEvents2.default.METRIC_ADDED,onMetricAdded,this);}/*\n     * Called when current playback position is changed.\n     * Used to determine the time current stream is finished and we should switch to the next stream.\n     */function onPlaybackTimeUpdated()/*e*/{if(isTrackTypePresent(_Constants2.default.VIDEO)){var playbackQuality=videoModel.getPlaybackQuality();if(playbackQuality){dashMetrics.addDroppedFrames(playbackQuality);}}}function onWallclockTimeUpdated()/*e*/{if(!settings.get().streaming.jumpGaps||getActiveStreamProcessors()===0||playbackController.isSeeking()||isPaused||isStreamSwitchingInProgress||hasMediaError||hasInitialisationError){return;}wallclockTicked++;if(wallclockTicked>=STALL_THRESHOLD_TO_CHECK_GAPS){var currentTime=playbackController.getTime();if(lastPlaybackTime===currentTime){jumpGap(currentTime);}else{lastPlaybackTime=currentTime;}wallclockTicked=0;}}function jumpGap(time){var streamProcessors=getActiveStreamProcessors();var smallGapLimit=settings.get().streaming.smallGapLimit;var seekToPosition=void 0;// Find out what is the right time position to jump to taking\n// into account state of buffer\nfor(var i=0;i<streamProcessors.length;i++){var mediaBuffer=streamProcessors[i].getBuffer();var ranges=mediaBuffer.getAllBufferRanges();var nextRangeStartTime=void 0;if(!ranges||ranges.length<=1)continue;// Get the range just after current time position\nfor(var j=0;j<ranges.length;j++){if(time<ranges.start(j)){nextRangeStartTime=ranges.start(j);break;}}if(nextRangeStartTime>0){var gap=nextRangeStartTime-time;if(gap>0&&gap<=smallGapLimit){if(seekToPosition===undefined||nextRangeStartTime>seekToPosition){seekToPosition=nextRangeStartTime;}}}}var timeToStreamEnd=playbackController.getTimeToStreamEnd();if(seekToPosition===undefined&&!isNaN(timeToStreamEnd)&&timeToStreamEnd<smallGapLimit){seekToPosition=time+timeToStreamEnd;}// If there is a safe position to jump to, do the seeking\nif(seekToPosition>0){if(!isNaN(timeToStreamEnd)&&seekToPosition>=time+timeToStreamEnd){logger.info('Jumping media gap (discontinuity) at time ',time,'. Jumping to end of the stream');eventBus.trigger(_Events2.default.PLAYBACK_ENDED,{'isLast':getActiveStreamInfo().isLast});}else{logger.info('Jumping media gap (discontinuity) at time ',time,'. Jumping to time position',seekToPosition);playbackController.seek(seekToPosition,true,true);}}}function onPlaybackSeeking(e){var seekingStream=getStreamForTime(e.seekTime);//if end period has been detected, stop timer and reset isPeriodSwitchInProgress\nif(playbackEndedTimerId){stopEndPeriodTimer();isPeriodSwitchInProgress=false;}if(prefetchTimerId){stopPreloadTimer();}if(seekingStream===activeStream&&preloading){// Seeking to the current period was requested while preloading the next one, deactivate preloading one\npreloading.deactivate(true);}if(seekingStream&&(seekingStream!==activeStream||preloading&&!activeStream.isActive())){// If we're preloading other stream, the active one was deactivated and we need to switch back\nflushPlaylistMetrics(_PlayList.PlayListTrace.END_OF_PERIOD_STOP_REASON);switchStream(activeStream,seekingStream,e.seekTime);}else{flushPlaylistMetrics(_PlayList.PlayListTrace.USER_REQUEST_STOP_REASON);}createPlaylistMetrics(_PlayList.PlayList.SEEK_START_REASON);}function onPlaybackStarted()/*e*/{logger.debug('[onPlaybackStarted]');if(initialPlayback){initialPlayback=false;createPlaylistMetrics(_PlayList.PlayList.INITIAL_PLAYOUT_START_REASON);}else{if(isPaused){isPaused=false;createPlaylistMetrics(_PlayList.PlayList.RESUME_FROM_PAUSE_START_REASON);toggleEndPeriodTimer();}}}function onPlaybackPaused(e){logger.debug('[onPlaybackPaused]');if(!e.ended){isPaused=true;flushPlaylistMetrics(_PlayList.PlayListTrace.USER_REQUEST_STOP_REASON);toggleEndPeriodTimer();}}function stopEndPeriodTimer(){logger.debug('[toggleEndPeriodTimer] stop end period timer.');clearTimeout(playbackEndedTimerId);playbackEndedTimerId=undefined;}function stopPreloadTimer(){logger.debug('[PreloadTimer] stop period preload timer.');clearTimeout(prefetchTimerId);prefetchTimerId=undefined;}function toggleEndPeriodTimer(){//stream buffering completed has not been detected, nothing to do....\nif(isPeriodSwitchInProgress){//stream buffering completed has been detected, if end period timer is running, stop it, otherwise start it....\nif(playbackEndedTimerId){stopEndPeriodTimer();}else{var timeToEnd=playbackController.getTimeToStreamEnd();var delayPlaybackEnded=timeToEnd>0?timeToEnd*1000:0;var prefetchDelay=delayPlaybackEnded<PERIOD_PREFETCH_TIME?delayPlaybackEnded/4:delayPlaybackEnded-PERIOD_PREFETCH_TIME;logger.debug('[toggleEndPeriodTimer] Going to fire preload in',prefetchDelay,'milliseconds');prefetchTimerId=setTimeout(onStreamCanLoadNext,prefetchDelay);logger.debug('[toggleEndPeriodTimer] start-up of timer to notify PLAYBACK_ENDED event. It will be triggered in',delayPlaybackEnded,'milliseconds');playbackEndedTimerId=setTimeout(function(){eventBus.trigger(_Events2.default.PLAYBACK_ENDED,{'isLast':getActiveStreamInfo().isLast});},delayPlaybackEnded);}}}function onTrackBufferingCompleted(e){// In multiperiod situations, as soon as one of the tracks (AUDIO, VIDEO) is finished we should\n// start doing prefetching of the next period\nif(!e.sender){return;}if(e.sender.getType()!==_Constants2.default.AUDIO&&e.sender.getType()!==_Constants2.default.VIDEO){return;}var isLast=getActiveStreamInfo().isLast;if(mediaSource&&!isLast&&playbackEndedTimerId===undefined){logger.info('[onTrackBufferingCompleted] end of period detected. Track',e.sender.getType(),'has finished');isPeriodSwitchInProgress=true;if(isPaused===false){toggleEndPeriodTimer();}}}function onStreamBufferingCompleted(){var isLast=getActiveStreamInfo().isLast;if(mediaSource&&isLast){logger.info('[onStreamBufferingCompleted] calls signalEndOfStream of mediaSourceController.');mediaSourceController.signalEndOfStream(mediaSource);}}function onStreamCanLoadNext(){var isLast=getActiveStreamInfo().isLast;if(mediaSource&&!isLast){var newStream=getNextStream();// Smooth period transition allowed only if both of these conditions are true:\n// 1.- None of the periods uses contentProtection.\n// 2.- changeType method implemented by browser or periods use the same codec.\nuseSmoothPeriodTransition=activeStream.isProtectionCompatible(newStream)&&(supportsChangeType||activeStream.isMediaCodecCompatible(newStream));if(useSmoothPeriodTransition){logger.info('[onStreamCanLoadNext] Preloading next stream');activeStream.stopEventController();activeStream.deactivate(true);newStream.preload(mediaSource,buffers);preloading=newStream;newStream.getProcessors().forEach(function(p){p.setIndexHandlerTime(newStream.getStartTime());});}}}function getStreamForTime(time){var duration=0;var stream=null;var ln=streams.length;if(ln>0){duration+=streams[0].getStartTime();}for(var i=0;i<ln;i++){stream=streams[i];duration=parseFloat((duration+stream.getDuration()).toFixed(5));if(time<duration){return stream;}}return null;}/**\n     * Returns a playhead time, in seconds, converted to be relative\n     * to the start of an identified stream/period or null if no such stream\n     * @param {number} time\n     * @param {string} id\n     * @returns {number|null}\n     */function getTimeRelativeToStreamId(time,id){var stream=null;var baseStart=0;var streamStart=0;var streamDur=null;for(var i=0;i<streams.length;i++){stream=streams[i];streamStart=stream.getStartTime();streamDur=stream.getDuration();// use start time, if not undefined or NaN or similar\nif(Number.isFinite(streamStart)){baseStart=streamStart;}if(stream.getId()===id){return time-baseStart;}else{// use duration if not undefined or NaN or similar\nif(Number.isFinite(streamDur)){baseStart+=streamDur;}}}return null;}function getActiveStreamProcessors(){return activeStream?activeStream.getProcessors():[];}function onEnded(){var nextStream=getNextStream();if(nextStream){audioTrackDetected=undefined;videoTrackDetected=undefined;switchStream(activeStream,nextStream,NaN);}else{logger.debug('StreamController no next stream found');}flushPlaylistMetrics(nextStream?_PlayList.PlayListTrace.END_OF_PERIOD_STOP_REASON:_PlayList.PlayListTrace.END_OF_CONTENT_STOP_REASON);playbackEndedTimerId=undefined;isPeriodSwitchInProgress=false;}function getNextStream(){if(activeStream){var start=getActiveStreamInfo().start;var duration=getActiveStreamInfo().duration;return streams.filter(function(stream){return stream.getStreamInfo().start===parseFloat((start+duration).toFixed(5));})[0];}}function switchStream(oldStream,newStream,seekTime){if(isStreamSwitchingInProgress||!newStream||oldStream===newStream&&newStream.isActive())return;isStreamSwitchingInProgress=true;eventBus.trigger(_Events2.default.PERIOD_SWITCH_STARTED,{fromStreamInfo:oldStream?oldStream.getStreamInfo():null,toStreamInfo:newStream.getStreamInfo()});useSmoothPeriodTransition=false;if(oldStream){oldStream.stopEventController();useSmoothPeriodTransition=activeStream.isProtectionCompatible(newStream)&&(supportsChangeType||activeStream.isMediaCodecCompatible(newStream))&&!seekTime||newStream.getPreloaded();oldStream.deactivate(useSmoothPeriodTransition);}activeStream=newStream;preloading=false;playbackController.initialize(getActiveStreamInfo(),useSmoothPeriodTransition);if(videoModel.getElement()){//TODO detect if we should close jump to activateStream.\nopenMediaSource(seekTime,oldStream,false,useSmoothPeriodTransition);}else{preloadStream(seekTime);}}function preloadStream(seekTime){activateStream(seekTime,useSmoothPeriodTransition);}function switchToVideoElement(seekTime){if(activeStream){playbackController.initialize(getActiveStreamInfo());openMediaSource(seekTime,null,true,false);}}function openMediaSource(seekTime,oldStream,streamActivated,keepBuffers){var sourceUrl=void 0;function onMediaSourceOpen(){// Manage situations in which a call to reset happens while MediaSource is being opened\nif(!mediaSource||mediaSource.readyState!='open')return;logger.debug('MediaSource is open!');window.URL.revokeObjectURL(sourceUrl);mediaSource.removeEventListener('sourceopen',onMediaSourceOpen);mediaSource.removeEventListener('webkitsourceopen',onMediaSourceOpen);setMediaDuration();if(!oldStream){eventBus.trigger(_Events2.default.SOURCE_INITIALIZED);}if(streamActivated){activeStream.setMediaSource(mediaSource);}else{activateStream(seekTime,keepBuffers);}}if(!mediaSource){mediaSource=mediaSourceController.createMediaSource();mediaSource.addEventListener('sourceopen',onMediaSourceOpen,false);mediaSource.addEventListener('webkitsourceopen',onMediaSourceOpen,false);sourceUrl=mediaSourceController.attachMediaSource(mediaSource,videoModel);logger.debug('MediaSource attached to element.  Waiting on open...');}else{if(keepBuffers){activateStream(seekTime,keepBuffers);if(!oldStream){eventBus.trigger(_Events2.default.SOURCE_INITIALIZED);}}else{mediaSourceController.detachMediaSource(videoModel);mediaSource.addEventListener('sourceopen',onMediaSourceOpen,false);mediaSource.addEventListener('webkitsourceopen',onMediaSourceOpen,false);sourceUrl=mediaSourceController.attachMediaSource(mediaSource,videoModel);logger.debug('MediaSource attached to element.  Waiting on open...');}}}function activateStream(seekTime,keepBuffers){buffers=activeStream.activate(mediaSource,keepBuffers?buffers:undefined);audioTrackDetected=checkTrackPresence(_Constants2.default.AUDIO);videoTrackDetected=checkTrackPresence(_Constants2.default.VIDEO);// check if change type is supported by the browser\nif(buffers){var keys=Object.keys(buffers);if(keys.length>0&&buffers[keys[0]].changeType){logger.debug('SourceBuffer changeType method supported. Use it to switch codecs in periods transitions');supportsChangeType=true;}}if(!initialPlayback){if(!isNaN(seekTime)){playbackController.seek(seekTime);//we only need to call seek here, IndexHandlerTime was set from seeking event\n}else{var startTime=playbackController.getStreamStartTime(true);if(!keepBuffers){getActiveStreamProcessors().forEach(function(p){p.setIndexHandlerTime(startTime);});}}}activeStream.startEventController();if(autoPlay||!initialPlayback){playbackController.play();}isStreamSwitchingInProgress=false;eventBus.trigger(_Events2.default.PERIOD_SWITCH_COMPLETED,{toStreamInfo:getActiveStreamInfo()});}function setMediaDuration(duration){var manifestDuration=duration?duration:getActiveStreamInfo().manifestInfo.duration;var mediaDuration=mediaSourceController.setDuration(mediaSource,manifestDuration);logger.debug('Duration successfully set to: '+mediaDuration);}function getComposedStream(streamInfo){for(var i=0,ln=streams.length;i<ln;i++){if(streams[i].getId()===streamInfo.id){return streams[i];}}return null;}function composeStreams(){try{var streamsInfo=adapter.getStreamsInfo();if(streamsInfo.length===0){throw new Error('There are no streams');}dashMetrics.updateManifestUpdateInfo({currentTime:playbackController.getTime(),buffered:videoModel.getBufferRange(),presentationStartTime:streamsInfo[0].start,clientTimeOffset:timelineConverter.getClientTimeOffset()});for(var i=0,ln=streamsInfo.length;i<ln;i++){// If the Stream object does not exist we probably loaded the manifest the first time or it was\n// introduced in the updated manifest, so we need to create a new Stream and perform all the initialization operations\nvar streamInfo=streamsInfo[i];var stream=getComposedStream(streamInfo);if(!stream){stream=(0,_Stream2.default)(context).create({manifestModel:manifestModel,mediaPlayerModel:mediaPlayerModel,dashMetrics:dashMetrics,manifestUpdater:manifestUpdater,adapter:adapter,timelineConverter:timelineConverter,capabilities:capabilities,errHandler:errHandler,baseURLController:baseURLController,abrController:abrController,playbackController:playbackController,mediaController:mediaController,textController:textController,videoModel:videoModel,streamController:instance,settings:settings});streams.push(stream);stream.initialize(streamInfo,protectionController);}else{stream.updateData(streamInfo);}dashMetrics.addManifestUpdateStreamInfo(streamInfo);}if(!activeStream){// we need to figure out what the correct starting period is\nvar startTimeFormUriParameters=playbackController.getStartTimeFromUriParameters();var initialStream=null;if(startTimeFormUriParameters){var initialTime=!isNaN(startTimeFormUriParameters.fragS)?startTimeFormUriParameters.fragS:startTimeFormUriParameters.fragT;initialStream=getStreamForTime(initialTime);}// For multiperiod streams we should avoid a switch of streams after the seek to the live edge. So we do a calculation of the expected seek time to find the right stream object.\nif(!initialStream&&adapter.getIsDynamic()&&streams.length){logger.debug('Dynamic multi-period stream: Trying to find the correct starting period');var manifestInfo=adapter.getStreamsInfo(undefined,1)[0].manifestInfo;var liveEdge=timelineConverter.calcPresentationTimeFromWallTime(new Date(),adapter.getRegularPeriods()[0]);var targetDelay=playbackController.computeLiveDelay(NaN,manifestInfo.DVRWindowSize,manifestInfo.minBufferTime);var targetTime=liveEdge-targetDelay;initialStream=getStreamForTime(targetTime);}switchStream(null,initialStream!==null?initialStream:streams[0],NaN);}eventBus.trigger(_Events2.default.STREAMS_COMPOSED);}catch(e){errHandler.error(new _DashJSError2.default(_Errors2.default.MANIFEST_ERROR_ID_NOSTREAMS_CODE,e.message+'nostreamscomposed',manifestModel.getValue()));hasInitialisationError=true;reset();}}function onTimeSyncCompleted()/*e*/{var manifest=manifestModel.getValue();//TODO check if we can move this to initialize??\nif(protectionController){eventBus.trigger(_Events2.default.PROTECTION_CREATED,{controller:protectionController,manifest:manifest});protectionController.setMediaElement(videoModel.getElement());if(protectionData){protectionController.setProtectionData(protectionData);}}composeStreams();}function onManifestUpdated(e){if(!e.error){//Since streams are not composed yet , need to manually look up useCalculatedLiveEdgeTime to detect if stream\n//is SegmentTimeline to avoid using time source\nvar manifest=e.manifest;adapter.updatePeriods(manifest);var streamInfo=adapter.getStreamsInfo(undefined,1)[0];var mediaInfo=adapter.getMediaInfoForType(streamInfo,_Constants2.default.VIDEO)||adapter.getMediaInfoForType(streamInfo,_Constants2.default.AUDIO);var useCalculatedLiveEdgeTime=void 0;if(mediaInfo){useCalculatedLiveEdgeTime=adapter.getUseCalculatedLiveEdgeTimeForMediaInfo(mediaInfo);if(useCalculatedLiveEdgeTime){logger.debug('SegmentTimeline detected using calculated Live Edge Time');var s={streaming:{useManifestDateHeaderTimeSource:false}};settings.update(s);}}var manifestUTCTimingSources=adapter.getUTCTimingSources();var allUTCTimingSources=!adapter.getIsDynamic()||useCalculatedLiveEdgeTime?manifestUTCTimingSources:manifestUTCTimingSources.concat(mediaPlayerModel.getUTCTimingSources());var isHTTPS=urlUtils.isHTTPS(e.manifest.url);//If https is detected on manifest then lets apply that protocol to only the default time source(s). In the future we may find the need to apply this to more then just default so left code at this level instead of in MediaPlayer.\nallUTCTimingSources.forEach(function(item){if(item.value.replace(/.*?:\\/\\//g,'')===mediaPlayerModel.getDefaultUtcTimingSource().value.replace(/.*?:\\/\\//g,'')){item.value=item.value.replace(isHTTPS?new RegExp(/^(http:)?\\/\\//i):new RegExp(/^(https:)?\\/\\//i),isHTTPS?'https://':'http://');logger.debug('Matching default timing source protocol to manifest protocol: ',item.value);}});baseURLController.initialize(manifest);timeSyncController.setConfig({dashMetrics:dashMetrics,baseURLController:baseURLController});timeSyncController.initialize(allUTCTimingSources,settings.get().streaming.useManifestDateHeaderTimeSource);}else{hasInitialisationError=true;reset();}}function isTrackTypePresent(trackType){var isTrackTypeDetected=void 0;if(!trackType){return isTrackTypeDetected;}switch(trackType){case _Constants2.default.VIDEO:isTrackTypeDetected=videoTrackDetected;break;case _Constants2.default.AUDIO:isTrackTypeDetected=audioTrackDetected;break;}return isTrackTypeDetected;}function checkTrackPresence(type){var isDetected=false;getActiveStreamProcessors().forEach(function(p){if(p.getMediaInfo().type===type){isDetected=true;}});return isDetected;}function flushPlaylistMetrics(reason,time){time=time||new Date();getActiveStreamProcessors().forEach(function(p){var ctrlr=p.getScheduleController();if(ctrlr){ctrlr.finalisePlayList(time,reason);}});dashMetrics.addPlayList();}function createPlaylistMetrics(startReason){dashMetrics.createPlaylistMetrics(playbackController.getTime()*1000,startReason);}function onPlaybackError(e){if(!e.error)return;var msg='';switch(e.error.code){case 1:msg='MEDIA_ERR_ABORTED';break;case 2:msg='MEDIA_ERR_NETWORK';break;case 3:msg='MEDIA_ERR_DECODE';break;case 4:msg='MEDIA_ERR_SRC_NOT_SUPPORTED';break;case 5:msg='MEDIA_ERR_ENCRYPTED';break;default:msg='UNKNOWN';break;}hasMediaError=true;if(e.error.message){msg+=' ('+e.error.message+')';}if(e.error.msExtendedCode){msg+=' (0x'+(e.error.msExtendedCode>>>0).toString(16).toUpperCase()+')';}logger.fatal('Video Element Error: '+msg);if(e.error){logger.fatal(e.error);}errHandler.error(new _DashJSError2.default(e.error.code,msg));reset();}function getActiveStreamInfo(){return activeStream?activeStream.getStreamInfo():null;}function getStreamById(id){return streams.filter(function(item){return item.getId()===id;})[0];}function checkConfig(){if(!manifestLoader||!manifestLoader.hasOwnProperty('load')||!timelineConverter||!timelineConverter.hasOwnProperty('initialize')||!timelineConverter.hasOwnProperty('reset')||!timelineConverter.hasOwnProperty('getClientTimeOffset')||!manifestModel||!errHandler||!dashMetrics||!playbackController){throw new Error(_Constants2.default.MISSING_CONFIG_ERROR);}}function checkInitialize(){if(!manifestUpdater||!manifestUpdater.hasOwnProperty('setManifest')){throw new Error('initialize function has to be called previously');}}function load(url){checkConfig();manifestLoader.load(url);}function loadWithManifest(manifest){checkInitialize();manifestUpdater.setManifest(manifest);}function onManifestValidityChanged(e){if(!isNaN(e.newDuration)){setMediaDuration(e.newDuration);}}function setConfig(config){if(!config)return;if(config.capabilities){capabilities=config.capabilities;}if(config.manifestLoader){manifestLoader=config.manifestLoader;}if(config.manifestModel){manifestModel=config.manifestModel;}if(config.mediaPlayerModel){mediaPlayerModel=config.mediaPlayerModel;}if(config.protectionController){protectionController=config.protectionController;}if(config.adapter){adapter=config.adapter;}if(config.dashMetrics){dashMetrics=config.dashMetrics;}if(config.errHandler){errHandler=config.errHandler;}if(config.timelineConverter){timelineConverter=config.timelineConverter;}if(config.videoModel){videoModel=config.videoModel;}if(config.playbackController){playbackController=config.playbackController;}if(config.abrController){abrController=config.abrController;}if(config.mediaController){mediaController=config.mediaController;}if(config.textController){textController=config.textController;}if(config.settings){settings=config.settings;}if(config.baseURLController){baseURLController=config.baseURLController;}}function setProtectionData(protData){protectionData=protData;}function resetInitialSettings(){streams=[];protectionController=null;isStreamSwitchingInProgress=false;activeStream=null;hasMediaError=false;hasInitialisationError=false;videoTrackDetected=undefined;audioTrackDetected=undefined;initialPlayback=true;isPaused=false;autoPlay=true;playbackEndedTimerId=undefined;isPeriodSwitchInProgress=false;wallclockTicked=0;}function reset(){checkConfig();timeSyncController.reset();flushPlaylistMetrics(hasMediaError||hasInitialisationError?_PlayList.PlayListTrace.FAILURE_STOP_REASON:_PlayList.PlayListTrace.USER_REQUEST_STOP_REASON);for(var i=0,ln=streams?streams.length:0;i<ln;i++){var stream=streams[i];stream.reset(hasMediaError);}unRegisterEvents();baseURLController.reset();manifestUpdater.reset();dashMetrics.clearAllCurrentMetrics();manifestModel.setValue(null);manifestLoader.reset();timelineConverter.reset();initCache.reset();if(mediaSource){mediaSourceController.detachMediaSource(videoModel);mediaSource=null;}videoModel=null;if(protectionController){protectionController.setMediaElement(null);protectionController=null;protectionData=null;if(manifestModel.getValue()){eventBus.trigger(_Events2.default.PROTECTION_DESTROYED,{data:manifestModel.getValue().url});}}eventBus.trigger(_Events2.default.STREAM_TEARDOWN_COMPLETE);resetInitialSettings();}function onMetricAdded(e){if(e.metric===_MetricsConstants2.default.DVR_INFO){//Match media type? How can DVR window be different for media types?\n//Should we normalize and union the two?\nif(e.mediaType===_Constants2.default.AUDIO){mediaSourceController.setSeekable(mediaSource,e.value.range.start,e.value.range.end);}}}instance={initialize:initialize,getActiveStreamInfo:getActiveStreamInfo,isTrackTypePresent:isTrackTypePresent,switchToVideoElement:switchToVideoElement,getStreamById:getStreamById,getStreamForTime:getStreamForTime,getTimeRelativeToStreamId:getTimeRelativeToStreamId,load:load,loadWithManifest:loadWithManifest,getActiveStreamProcessors:getActiveStreamProcessors,setConfig:setConfig,setProtectionData:setProtectionData,reset:reset};setup();return instance;}StreamController.__dashjs_factory_name='StreamController';exports.default=_FactoryMaker2.default.getSingletonFactory(StreamController);\n//# sourceMappingURL=StreamController.js.map\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _FactoryMaker=require('../../core/FactoryMaker');var _FactoryMaker2=_interopRequireDefault(_FactoryMaker);var _FragmentRequest=require('../vo/FragmentRequest');var _FragmentRequest2=_interopRequireDefault(_FragmentRequest);function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n */var FRAGMENT_MODEL_LOADING='loading';var FRAGMENT_MODEL_EXECUTED='executed';var FRAGMENT_MODEL_CANCELED='canceled';var FRAGMENT_MODEL_FAILED='failed';function FragmentModel(config){config=config||{};var eventBus=config.eventBus;var events=config.events;var dashMetrics=config.dashMetrics;var fragmentLoader=config.fragmentLoader;var debug=config.debug;var instance=void 0,logger=void 0,streamProcessor=void 0,executedRequests=void 0,loadingRequests=void 0;function setup(){logger=debug.getLogger(instance);resetInitialSettings();eventBus.on(events.LOADING_COMPLETED,onLoadingCompleted,instance);eventBus.on(events.LOADING_DATA_PROGRESS,onLoadingInProgress,instance);eventBus.on(events.LOADING_ABANDONED,onLoadingAborted,instance);}function setStreamProcessor(value){streamProcessor=value;}function getStreamProcessor(){return streamProcessor;}function isFragmentLoaded(request){var isEqualComplete=function isEqualComplete(req1,req2){return req1.action===_FragmentRequest2.default.ACTION_COMPLETE&&req1.action===req2.action;};var isEqualMedia=function isEqualMedia(req1,req2){return!isNaN(req1.index)&&req1.startTime===req2.startTime&&req1.adaptationIndex===req2.adaptationIndex&&req1.type===req2.type;};var isEqualInit=function isEqualInit(req1,req2){return isNaN(req1.index)&&isNaN(req2.index)&&req1.quality===req2.quality;};var check=function check(requests){var isLoaded=false;requests.some(function(req){if(isEqualMedia(request,req)||isEqualInit(request,req)||isEqualComplete(request,req)){isLoaded=true;return isLoaded;}});return isLoaded;};if(!request){return false;}return check(executedRequests);}function isFragmentLoadedOrPending(request){var isLoaded=false;var i=0;var req=void 0;// First, check if the fragment has already been loaded\nisLoaded=isFragmentLoaded(request);// Then, check if the fragment is about to be loeaded\nif(!isLoaded){for(i=0;i<loadingRequests.length;i++){req=loadingRequests[i];if(request.url===req.url&&request.startTime===req.startTime){isLoaded=true;}}}return isLoaded;}/**\n     *\n     * Gets an array of {@link FragmentRequest} objects\n     *\n     * @param {Object} filter The object with properties by which the method filters the requests to be returned.\n     *  the only mandatory property is state, which must be a value from\n     *  other properties should match the properties of {@link FragmentRequest}. E.g.:\n     *  getRequests({state: FragmentModel.FRAGMENT_MODEL_EXECUTED, quality: 0}) - returns\n     *  all the requests from executedRequests array where requests.quality = filter.quality\n     *\n     * @returns {Array}\n     * @memberof FragmentModel#\n     */function getRequests(filter){var states=filter?filter.state instanceof Array?filter.state:[filter.state]:[];var filteredRequests=[];states.forEach(function(state){var requests=getRequestsForState(state);filteredRequests=filteredRequests.concat(filterRequests(requests,filter));});return filteredRequests;}function getRequestThreshold(req){return isNaN(req.duration)?0.25:Math.min(req.duration/8,0.5);}function removeExecutedRequestsBeforeTime(time){executedRequests=executedRequests.filter(function(req){var threshold=getRequestThreshold(req);return isNaN(req.startTime)||(time!==undefined?req.startTime>=time-threshold:false);});}function removeExecutedRequestsAfterTime(time){executedRequests=executedRequests.filter(function(req){return isNaN(req.startTime)||(time!==undefined?req.startTime<time:false);});}function removeExecutedRequestsInTimeRange(start,end){if(end<=start+0.5){return;}executedRequests=executedRequests.filter(function(req){var threshold=getRequestThreshold(req);return isNaN(req.startTime)||req.startTime>=end-threshold||isNaN(req.duration)||req.startTime+req.duration<=start+threshold;});}// Remove requests that are not \"represented\" by any of buffered ranges\nfunction syncExecutedRequestsWithBufferedRange(bufferedRanges,streamDuration){if(!bufferedRanges||bufferedRanges.length===0){removeExecutedRequestsBeforeTime();return;}var start=0;for(var i=0,ln=bufferedRanges.length;i<ln;i++){removeExecutedRequestsInTimeRange(start,bufferedRanges.start(i));start=bufferedRanges.end(i);}if(streamDuration>0){removeExecutedRequestsInTimeRange(start,streamDuration);}}function abortRequests(){fragmentLoader.abort();loadingRequests=[];}function executeRequest(request){switch(request.action){case _FragmentRequest2.default.ACTION_COMPLETE:executedRequests.push(request);addSchedulingInfoMetrics(request,FRAGMENT_MODEL_EXECUTED);logger.debug('executeRequest trigger STREAM_COMPLETED');eventBus.trigger(events.STREAM_COMPLETED,{request:request,fragmentModel:this});break;case _FragmentRequest2.default.ACTION_DOWNLOAD:addSchedulingInfoMetrics(request,FRAGMENT_MODEL_LOADING);loadingRequests.push(request);loadCurrentFragment(request);break;default:logger.warn('Unknown request action.');}}function loadCurrentFragment(request){eventBus.trigger(events.FRAGMENT_LOADING_STARTED,{sender:instance,request:request});fragmentLoader.load(request);}function getRequestForTime(arr,time,threshold){// loop through the executed requests and pick the one for which the playback interval matches the given time\nvar lastIdx=arr.length-1;for(var i=lastIdx;i>=0;i--){var req=arr[i];var start=req.startTime;var end=start+req.duration;threshold=!isNaN(threshold)?threshold:getRequestThreshold(req);if(!isNaN(start)&&!isNaN(end)&&time+threshold>=start&&time-threshold<end||isNaN(start)&&isNaN(time)){return req;}}return null;}function filterRequests(arr,filter){// for time use a specific filtration function\nif(filter.hasOwnProperty('time')){return[getRequestForTime(arr,filter.time,filter.threshold)];}return arr.filter(function(request){for(var prop in filter){if(prop==='state')continue;if(filter.hasOwnProperty(prop)&&request[prop]!=filter[prop])return false;}return true;});}function getRequestsForState(state){var requests=void 0;switch(state){case FRAGMENT_MODEL_LOADING:requests=loadingRequests;break;case FRAGMENT_MODEL_EXECUTED:requests=executedRequests;break;default:requests=[];}return requests;}function addSchedulingInfoMetrics(request,state){dashMetrics.addSchedulingInfo(request,state);dashMetrics.addRequestsQueue(request.mediaType,loadingRequests,executedRequests);}function onLoadingCompleted(e){if(e.sender!==fragmentLoader)return;loadingRequests.splice(loadingRequests.indexOf(e.request),1);if(e.response&&!e.error){executedRequests.push(e.request);}addSchedulingInfoMetrics(e.request,e.error?FRAGMENT_MODEL_FAILED:FRAGMENT_MODEL_EXECUTED);eventBus.trigger(events.FRAGMENT_LOADING_COMPLETED,{request:e.request,response:e.response,error:e.error,sender:this});}function onLoadingInProgress(e){if(e.sender!==fragmentLoader)return;eventBus.trigger(events.FRAGMENT_LOADING_PROGRESS,{request:e.request,response:e.response,error:e.error,sender:this});}function onLoadingAborted(e){if(e.sender!==fragmentLoader)return;eventBus.trigger(events.FRAGMENT_LOADING_ABANDONED,{streamProcessor:this.getStreamProcessor(),request:e.request,mediaType:e.mediaType});}function resetInitialSettings(){executedRequests=[];loadingRequests=[];}function reset(){eventBus.off(events.LOADING_COMPLETED,onLoadingCompleted,this);eventBus.off(events.LOADING_DATA_PROGRESS,onLoadingInProgress,this);eventBus.off(events.LOADING_ABANDONED,onLoadingAborted,this);if(fragmentLoader){fragmentLoader.reset();}resetInitialSettings();}function addExecutedRequest(request){executedRequests.push(request);}instance={setStreamProcessor:setStreamProcessor,getStreamProcessor:getStreamProcessor,getRequests:getRequests,isFragmentLoaded:isFragmentLoaded,isFragmentLoadedOrPending:isFragmentLoadedOrPending,removeExecutedRequestsBeforeTime:removeExecutedRequestsBeforeTime,removeExecutedRequestsAfterTime:removeExecutedRequestsAfterTime,syncExecutedRequestsWithBufferedRange:syncExecutedRequestsWithBufferedRange,abortRequests:abortRequests,executeRequest:executeRequest,reset:reset,addExecutedRequest:addExecutedRequest};setup();return instance;}FragmentModel.__dashjs_factory_name='FragmentModel';var factory=_FactoryMaker2.default.getClassFactory(FragmentModel);factory.FRAGMENT_MODEL_LOADING=FRAGMENT_MODEL_LOADING;factory.FRAGMENT_MODEL_EXECUTED=FRAGMENT_MODEL_EXECUTED;factory.FRAGMENT_MODEL_CANCELED=FRAGMENT_MODEL_CANCELED;factory.FRAGMENT_MODEL_FAILED=FRAGMENT_MODEL_FAILED;_FactoryMaker2.default.updateClassFactory(FragmentModel.__dashjs_factory_name,factory);exports.default=factory;\n//# sourceMappingURL=FragmentModel.js.map\n","function _setPrototypeOf(o, p) {\n  module.exports = _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) {\n    o.__proto__ = p;\n    return o;\n  };\n\n  module.exports[\"default\"] = module.exports, module.exports.__esModule = true;\n  return _setPrototypeOf(o, p);\n}\n\nmodule.exports = _setPrototypeOf;\nmodule.exports[\"default\"] = module.exports, module.exports.__esModule = true;","var win;\n\nif (typeof window !== \"undefined\") {\n    win = window;\n} else if (typeof global !== \"undefined\") {\n    win = global;\n} else if (typeof self !== \"undefined\"){\n    win = self;\n} else {\n    win = {};\n}\n\nmodule.exports = win;\n","/* \r\n * Copyright (c) 2016, Pierre-Anthony Lemieux <pal@sandflow.com>\r\n * All rights reserved.\r\n *\r\n * Redistribution and use in source and binary forms, with or without\r\n * modification, are permitted provided that the following conditions are met:\r\n *\r\n * * Redistributions of source code must retain the above copyright notice, this\r\n *   list of conditions and the following disclaimer.\r\n * * Redistributions in binary form must reproduce the above copyright notice,\r\n *   this list of conditions and the following disclaimer in the documentation\r\n *   and/or other materials provided with the distribution.\r\n *\r\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS \"AS IS\"\r\n * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE\r\n * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE\r\n * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE\r\n * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR\r\n * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF\r\n * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS\r\n * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN\r\n * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\r\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\r\n * POSSIBILITY OF SUCH DAMAGE.\r\n */\r\n\r\n/**\r\n * @module imscDoc\r\n */\r\n\r\n;\r\n(function (imscDoc, sax, imscNames, imscStyles, imscUtils) {\r\n\r\n\r\n    /**\r\n     * Allows a client to provide callbacks to handle children of the <metadata> element\r\n     * @typedef {Object} MetadataHandler\r\n     * @property {?OpenTagCallBack} onOpenTag\r\n     * @property {?CloseTagCallBack} onCloseTag\r\n     * @property {?TextCallBack} onText\r\n     */\r\n\r\n    /**\r\n     * Called when the opening tag of an element node is encountered.\r\n     * @callback OpenTagCallBack\r\n     * @param {string} ns Namespace URI of the element\r\n     * @param {string} name Local name of the element\r\n     * @param {Object[]} attributes List of attributes, each consisting of a\r\n     *                              `uri`, `name` and `value`\r\n     */\r\n\r\n    /**\r\n     * Called when the closing tag of an element node is encountered.\r\n     * @callback CloseTagCallBack\r\n     */\r\n\r\n    /**\r\n     * Called when a text node is encountered.\r\n     * @callback TextCallBack\r\n     * @param {string} contents Contents of the text node\r\n     */\r\n\r\n    /**\r\n     * Parses an IMSC1 document into an opaque in-memory representation that exposes\r\n     * a single method <pre>getMediaTimeEvents()</pre> that returns a list of time\r\n     * offsets (in seconds) of the ISD, i.e. the points in time where the visual\r\n     * representation of the document change. `metadataHandler` allows the caller to\r\n     * be called back when nodes are present in <metadata> elements. \r\n     * \r\n     * @param {string} xmlstring XML document\r\n     * @param {?module:imscUtils.ErrorHandler} errorHandler Error callback\r\n     * @param {?MetadataHandler} metadataHandler Callback for <Metadata> elements\r\n     * @returns {Object} Opaque in-memory representation of an IMSC1 document\r\n     */\r\n\r\n    imscDoc.fromXML = function (xmlstring, errorHandler, metadataHandler) {\r\n        var p = sax.parser(true, {xmlns: true});\r\n        var estack = [];\r\n        var xmllangstack = [];\r\n        var xmlspacestack = [];\r\n        var metadata_depth = 0;\r\n        var doc = null;\r\n\r\n        p.onclosetag = function (node) {\r\n\r\n            if (estack[0] instanceof Styling) {\r\n\r\n                /* flatten chained referential styling */\r\n\r\n                for (var sid in estack[0].styles) {\r\n\r\n                    mergeChainedStyles(estack[0], estack[0].styles[sid], errorHandler);\r\n\r\n                }\r\n\r\n            } else if (estack[0] instanceof P || estack[0] instanceof Span) {\r\n\r\n                /* merge anonymous spans */\r\n\r\n                if (estack[0].contents.length > 1) {\r\n\r\n                    var cs = [estack[0].contents[0]];\r\n\r\n                    var c;\r\n\r\n                    for (c = 1; c < estack[0].contents.length; c++) {\r\n\r\n                        if (estack[0].contents[c] instanceof AnonymousSpan &&\r\n                                cs[cs.length - 1] instanceof AnonymousSpan) {\r\n\r\n                            cs[cs.length - 1].text += estack[0].contents[c].text;\r\n\r\n                        } else {\r\n\r\n                            cs.push(estack[0].contents[c]);\r\n\r\n                        }\r\n\r\n                    }\r\n\r\n                    estack[0].contents = cs;\r\n\r\n                }\r\n\r\n                // remove redundant nested anonymous spans (9.3.3(1)(c))\r\n\r\n                if (estack[0] instanceof Span &&\r\n                        estack[0].contents.length === 1 &&\r\n                        estack[0].contents[0] instanceof AnonymousSpan) {\r\n\r\n                    estack[0].text = estack[0].contents[0].text;\r\n                    delete estack[0].contents;\r\n\r\n                }\r\n\r\n            } else if (estack[0] instanceof ForeignElement) {\r\n\r\n                if (estack[0].node.uri === imscNames.ns_tt &&\r\n                        estack[0].node.local === 'metadata') {\r\n\r\n                    /* leave the metadata element */\r\n\r\n                    metadata_depth--;\r\n\r\n                } else if (metadata_depth > 0 &&\r\n                        metadataHandler &&\r\n                        'onCloseTag' in metadataHandler) {\r\n\r\n                    /* end of child of metadata element */\r\n\r\n                    metadataHandler.onCloseTag();\r\n\r\n                }\r\n\r\n            }\r\n\r\n            // TODO: delete stylerefs?\r\n\r\n            // maintain the xml:space stack\r\n\r\n            xmlspacestack.shift();\r\n\r\n            // maintain the xml:lang stack\r\n\r\n            xmllangstack.shift();\r\n\r\n            // prepare for the next element\r\n\r\n            estack.shift();\r\n        };\r\n\r\n        p.ontext = function (str) {\r\n\r\n            if (estack[0] === undefined) {\r\n\r\n                /* ignoring text outside of elements */\r\n\r\n            } else if (estack[0] instanceof Span || estack[0] instanceof P) {\r\n\r\n                /* ignore children text nodes in ruby container spans */\r\n\r\n                if (estack[0] instanceof Span) {\r\n\r\n                    var ruby = estack[0].styleAttrs[imscStyles.byName.ruby.qname];\r\n\r\n                    if (ruby === 'container' || ruby === 'textContainer' || ruby === 'baseContainer') {\r\n\r\n                        return;\r\n\r\n                    }\r\n\r\n                }\r\n\r\n                /* create an anonymous span */\r\n\r\n                var s = new AnonymousSpan();\r\n\r\n                s.initFromText(doc, estack[0], str, xmlspacestack[0], errorHandler);\r\n\r\n                estack[0].contents.push(s);\r\n\r\n            } else if (estack[0] instanceof ForeignElement &&\r\n                    metadata_depth > 0 &&\r\n                    metadataHandler &&\r\n                    'onText' in metadataHandler) {\r\n\r\n                /* text node within a child of metadata element */\r\n\r\n                metadataHandler.onText(str);\r\n\r\n            }\r\n\r\n        };\r\n\r\n\r\n        p.onopentag = function (node) {\r\n\r\n            // maintain the xml:space stack\r\n\r\n            var xmlspace = node.attributes[\"xml:space\"];\r\n\r\n            if (xmlspace) {\r\n\r\n                xmlspacestack.unshift(xmlspace.value);\r\n\r\n            } else {\r\n\r\n                if (xmlspacestack.length === 0) {\r\n\r\n                    xmlspacestack.unshift(\"default\");\r\n\r\n                } else {\r\n\r\n                    xmlspacestack.unshift(xmlspacestack[0]);\r\n\r\n                }\r\n\r\n            }\r\n\r\n            /* maintain the xml:lang stack */\r\n\r\n\r\n            var xmllang = node.attributes[\"xml:lang\"];\r\n\r\n            if (xmllang) {\r\n\r\n                xmllangstack.unshift(xmllang.value);\r\n\r\n            } else {\r\n\r\n                if (xmllangstack.length === 0) {\r\n\r\n                    xmllangstack.unshift(\"\");\r\n\r\n                } else {\r\n\r\n                    xmllangstack.unshift(xmllangstack[0]);\r\n\r\n                }\r\n\r\n            }\r\n\r\n\r\n            /* process the element */\r\n\r\n            if (node.uri === imscNames.ns_tt) {\r\n\r\n                if (node.local === 'tt') {\r\n\r\n                    if (doc !== null) {\r\n\r\n                        reportFatal(errorHandler, \"Two <tt> elements at (\" + this.line + \",\" + this.column + \")\");\r\n\r\n                    }\r\n\r\n                    doc = new TT();\r\n\r\n                    doc.initFromNode(node, errorHandler);\r\n\r\n                    estack.unshift(doc);\r\n\r\n                } else if (node.local === 'head') {\r\n\r\n                    if (!(estack[0] instanceof TT)) {\r\n                        reportFatal(errorHandler, \"Parent of <head> element is not <tt> at (\" + this.line + \",\" + this.column + \")\");\r\n                    }\r\n\r\n                    estack.unshift(doc.head);\r\n\r\n                } else if (node.local === 'styling') {\r\n\r\n                    if (!(estack[0] instanceof Head)) {\r\n                        reportFatal(errorHandler, \"Parent of <styling> element is not <head> at (\" + this.line + \",\" + this.column + \")\");\r\n                    }\r\n\r\n                    estack.unshift(doc.head.styling);\r\n\r\n                } else if (node.local === 'style') {\r\n\r\n                    var s;\r\n\r\n                    if (estack[0] instanceof Styling) {\r\n\r\n                        s = new Style();\r\n\r\n                        s.initFromNode(node, errorHandler);\r\n\r\n                        /* ignore <style> element missing @id */\r\n\r\n                        if (!s.id) {\r\n\r\n                            reportError(errorHandler, \"<style> element missing @id attribute\");\r\n\r\n                        } else {\r\n\r\n                            doc.head.styling.styles[s.id] = s;\r\n\r\n                        }\r\n\r\n                        estack.unshift(s);\r\n\r\n                    } else if (estack[0] instanceof Region) {\r\n\r\n                        /* nested styles can be merged with specified styles\r\n                         * immediately, with lower priority\r\n                         * (see 8.4.4.2(3) at TTML1 )\r\n                         */\r\n\r\n                        s = new Style();\r\n\r\n                        s.initFromNode(node, errorHandler);\r\n\r\n                        mergeStylesIfNotPresent(s.styleAttrs, estack[0].styleAttrs);\r\n\r\n                        estack.unshift(s);\r\n\r\n                    } else {\r\n\r\n                        reportFatal(errorHandler, \"Parent of <style> element is not <styling> or <region> at (\" + this.line + \",\" + this.column + \")\");\r\n\r\n                    }\r\n\r\n                }  else if (node.local === 'initial') {\r\n\r\n                    var ini;\r\n\r\n                    if (estack[0] instanceof Styling) {\r\n\r\n                        ini = new Initial();\r\n\r\n                        ini.initFromNode(node, errorHandler);\r\n                        \r\n                        for (var qn in ini.styleAttrs) {\r\n                            \r\n                            doc.head.styling.initials[qn] = ini.styleAttrs[qn];\r\n                            \r\n                        }\r\n                        \r\n                        estack.unshift(ini);\r\n\r\n                    } else {\r\n\r\n                        reportFatal(errorHandler, \"Parent of <initial> element is not <styling> at (\" + this.line + \",\" + this.column + \")\");\r\n\r\n                    }\r\n\r\n                } else if (node.local === 'layout') {\r\n\r\n                    if (!(estack[0] instanceof Head)) {\r\n\r\n                        reportFatal(errorHandler, \"Parent of <layout> element is not <head> at \" + this.line + \",\" + this.column + \")\");\r\n\r\n                    }\r\n\r\n                    estack.unshift(doc.head.layout);\r\n\r\n                } else if (node.local === 'region') {\r\n\r\n                    if (!(estack[0] instanceof Layout)) {\r\n                        reportFatal(errorHandler, \"Parent of <region> element is not <layout> at \" + this.line + \",\" + this.column + \")\");\r\n                    }\r\n\r\n                    var r = new Region();\r\n\r\n                    r.initFromNode(doc, node, errorHandler);\r\n\r\n                    if (!r.id || r.id in doc.head.layout.regions) {\r\n\r\n                        reportError(errorHandler, \"Ignoring <region> with duplicate or missing @id at \" + this.line + \",\" + this.column + \")\");\r\n\r\n                    } else {\r\n\r\n                        doc.head.layout.regions[r.id] = r;\r\n\r\n                    }\r\n\r\n                    estack.unshift(r);\r\n\r\n                } else if (node.local === 'body') {\r\n\r\n                    if (!(estack[0] instanceof TT)) {\r\n\r\n                        reportFatal(errorHandler, \"Parent of <body> element is not <tt> at \" + this.line + \",\" + this.column + \")\");\r\n\r\n                    }\r\n\r\n                    if (doc.body !== null) {\r\n\r\n                        reportFatal(errorHandler, \"Second <body> element at \" + this.line + \",\" + this.column + \")\");\r\n\r\n                    }\r\n\r\n                    var b = new Body();\r\n\r\n                    b.initFromNode(doc, node, errorHandler);\r\n\r\n                    doc.body = b;\r\n\r\n                    estack.unshift(b);\r\n\r\n                } else if (node.local === 'div') {\r\n\r\n                    if (!(estack[0] instanceof Div || estack[0] instanceof Body)) {\r\n\r\n                        reportFatal(errorHandler, \"Parent of <div> element is not <body> or <div> at \" + this.line + \",\" + this.column + \")\");\r\n\r\n                    }\r\n\r\n                    var d = new Div();\r\n\r\n                    d.initFromNode(doc, estack[0], node, errorHandler);\r\n                    \r\n                    /* transform smpte:backgroundImage to TTML2 image element */\r\n                    \r\n                    var bi = d.styleAttrs[imscStyles.byName.backgroundImage.qname];\r\n                    \r\n                    if (bi) {\r\n                        d.contents.push(new Image(bi));\r\n                        delete d.styleAttrs[imscStyles.byName.backgroundImage.qname];                  \r\n                    }\r\n\r\n                    estack[0].contents.push(d);\r\n\r\n                    estack.unshift(d);\r\n\r\n                } else if (node.local === 'image') {\r\n\r\n                    if (!(estack[0] instanceof Div)) {\r\n\r\n                        reportFatal(errorHandler, \"Parent of <image> element is not <div> at \" + this.line + \",\" + this.column + \")\");\r\n\r\n                    }\r\n\r\n                    var img = new Image();\r\n                    \r\n                    img.initFromNode(doc, estack[0], node, errorHandler);\r\n                    \r\n                    estack[0].contents.push(img);\r\n\r\n                    estack.unshift(img);\r\n\r\n                } else if (node.local === 'p') {\r\n\r\n                    if (!(estack[0] instanceof Div)) {\r\n\r\n                        reportFatal(errorHandler, \"Parent of <p> element is not <div> at \" + this.line + \",\" + this.column + \")\");\r\n\r\n                    }\r\n\r\n                    var p = new P();\r\n\r\n                    p.initFromNode(doc, estack[0], node, errorHandler);\r\n\r\n                    estack[0].contents.push(p);\r\n\r\n                    estack.unshift(p);\r\n\r\n                } else if (node.local === 'span') {\r\n\r\n                    if (!(estack[0] instanceof Span || estack[0] instanceof P)) {\r\n\r\n                        reportFatal(errorHandler, \"Parent of <span> element is not <span> or <p> at \" + this.line + \",\" + this.column + \")\");\r\n\r\n                    }\r\n\r\n                    var ns = new Span();\r\n\r\n                    ns.initFromNode(doc, estack[0], node, xmlspacestack[0], errorHandler);\r\n\r\n                    estack[0].contents.push(ns);\r\n\r\n                    estack.unshift(ns);\r\n\r\n                } else if (node.local === 'br') {\r\n\r\n                    if (!(estack[0] instanceof Span || estack[0] instanceof P)) {\r\n\r\n                        reportFatal(errorHandler, \"Parent of <br> element is not <span> or <p> at \" + this.line + \",\" + this.column + \")\");\r\n\r\n                    }\r\n\r\n                    var nb = new Br();\r\n\r\n                    nb.initFromNode(doc, estack[0], node, errorHandler);\r\n\r\n                    estack[0].contents.push(nb);\r\n\r\n                    estack.unshift(nb);\r\n\r\n                } else if (node.local === 'set') {\r\n\r\n                    if (!(estack[0] instanceof Span ||\r\n                            estack[0] instanceof P ||\r\n                            estack[0] instanceof Div ||\r\n                            estack[0] instanceof Body ||\r\n                            estack[0] instanceof Region ||\r\n                            estack[0] instanceof Br)) {\r\n\r\n                        reportFatal(errorHandler, \"Parent of <set> element is not a content element or a region at \" + this.line + \",\" + this.column + \")\");\r\n\r\n                    }\r\n\r\n                    var st = new Set();\r\n\r\n                    st.initFromNode(doc, estack[0], node, errorHandler);\r\n\r\n                    estack[0].sets.push(st);\r\n\r\n                    estack.unshift(st);\r\n\r\n                } else {\r\n\r\n                    /* element in the TT namespace, but not a content element */\r\n\r\n                    estack.unshift(new ForeignElement(node));\r\n                }\r\n\r\n            } else {\r\n\r\n                /* ignore elements not in the TTML namespace unless in metadata element */\r\n\r\n                estack.unshift(new ForeignElement(node));\r\n\r\n            }\r\n\r\n            /* handle metadata callbacks */\r\n\r\n            if (estack[0] instanceof ForeignElement) {\r\n\r\n                if (node.uri === imscNames.ns_tt &&\r\n                        node.local === 'metadata') {\r\n\r\n                    /* enter the metadata element */\r\n\r\n                    metadata_depth++;\r\n\r\n                } else if (\r\n                        metadata_depth > 0 &&\r\n                        metadataHandler &&\r\n                        'onOpenTag' in metadataHandler\r\n                        ) {\r\n\r\n                    /* start of child of metadata element */\r\n\r\n                    var attrs = [];\r\n\r\n                    for (var a in node.attributes) {\r\n                        attrs[node.attributes[a].uri + \" \" + node.attributes[a].local] =\r\n                                {\r\n                                    uri: node.attributes[a].uri,\r\n                                    local: node.attributes[a].local,\r\n                                    value: node.attributes[a].value\r\n                                };\r\n                    }\r\n\r\n                    metadataHandler.onOpenTag(node.uri, node.local, attrs);\r\n\r\n                }\r\n\r\n            }\r\n\r\n        };\r\n\r\n        // parse the document\r\n\r\n        p.write(xmlstring).close();\r\n\r\n        // all referential styling has been flatten, so delete styles\r\n\r\n        delete doc.head.styling.styles;\r\n       \r\n        // create default region if no regions specified\r\n\r\n        var hasRegions = false;\r\n\r\n        /* AFAIK the only way to determine whether an object has members */\r\n\r\n        for (var i in doc.head.layout.regions) {\r\n\r\n            hasRegions = true;\r\n\r\n            break;\r\n\r\n        }\r\n\r\n        if (!hasRegions) {\r\n\r\n            /* create default region */\r\n\r\n            var dr = Region.prototype.createDefaultRegion();\r\n\r\n            doc.head.layout.regions[dr.id] = dr;\r\n\r\n        }\r\n\r\n        /* resolve desired timing for regions */\r\n\r\n        for (var region_i in doc.head.layout.regions) {\r\n\r\n            resolveTiming(doc, doc.head.layout.regions[region_i], null, null);\r\n\r\n        }\r\n\r\n        /* resolve desired timing for content elements */\r\n\r\n        if (doc.body) {\r\n            resolveTiming(doc, doc.body, null, null);\r\n        }\r\n\r\n        /* remove undefined spans in ruby containers */\r\n\r\n        if (doc.body) {\r\n            cleanRubyContainers(doc.body);\r\n        }\r\n\r\n        return doc;\r\n    };\r\n\r\n    function cleanRubyContainers(element) {\r\n        \r\n        if (! ('contents' in element)) return;\r\n\r\n        var rubyval = 'styleAttrs' in element ? element.styleAttrs[imscStyles.byName.ruby.qname] : null;\r\n\r\n        var isrubycontainer = (element.kind === 'span' && (rubyval === \"container\" || rubyval === \"textContainer\" || rubyval === \"baseContainer\"));\r\n\r\n        for (var i = element.contents.length - 1; i >= 0; i--) {\r\n\r\n            if (isrubycontainer && !('styleAttrs' in element.contents[i] && imscStyles.byName.ruby.qname in element.contents[i].styleAttrs)) {\r\n\r\n                /* prune undefined <span> in ruby containers */\r\n\r\n                delete element.contents[i];\r\n\r\n            } else {\r\n\r\n                cleanRubyContainers(element.contents[i]);\r\n\r\n            }\r\n\r\n        }\r\n\r\n    }\r\n\r\n    function resolveTiming(doc, element, prev_sibling, parent) {\r\n\r\n        /* are we in a seq container? */\r\n\r\n        var isinseq = parent && parent.timeContainer === \"seq\";\r\n\r\n        /* determine implicit begin */\r\n\r\n        var implicit_begin = 0; /* default */\r\n\r\n        if (parent) {\r\n\r\n            if (isinseq && prev_sibling) {\r\n\r\n                /*\r\n                 * if seq time container, offset from the previous sibling end\r\n                 */\r\n\r\n                implicit_begin = prev_sibling.end;\r\n\r\n\r\n            } else {\r\n\r\n                implicit_begin = parent.begin;\r\n\r\n            }\r\n\r\n        }\r\n\r\n        /* compute desired begin */\r\n\r\n        element.begin = element.explicit_begin ? element.explicit_begin + implicit_begin : implicit_begin;\r\n\r\n\r\n        /* determine implicit end */\r\n\r\n        var implicit_end = element.begin;\r\n\r\n        var s = null;\r\n\r\n        for (var set_i in element.sets) {\r\n\r\n            resolveTiming(doc, element.sets[set_i], s, element);\r\n\r\n            if (element.timeContainer === \"seq\") {\r\n\r\n                implicit_end = element.sets[set_i].end;\r\n\r\n            } else {\r\n\r\n                implicit_end = Math.max(implicit_end, element.sets[set_i].end);\r\n\r\n            }\r\n\r\n            s = element.sets[set_i];\r\n\r\n        }\r\n\r\n        if (!('contents' in element)) {\r\n\r\n            /* anonymous spans and regions and <set> and <br>s and spans with only children text nodes */\r\n\r\n            if (isinseq) {\r\n\r\n                /* in seq container, implicit duration is zero */\r\n\r\n                implicit_end = element.begin;\r\n\r\n            } else {\r\n\r\n                /* in par container, implicit duration is indefinite */\r\n\r\n                implicit_end = Number.POSITIVE_INFINITY;\r\n\r\n            }\r\n\r\n        } else {\r\n\r\n            for (var content_i in element.contents) {\r\n\r\n                resolveTiming(doc, element.contents[content_i], s, element);\r\n\r\n                if (element.timeContainer === \"seq\") {\r\n\r\n                    implicit_end = element.contents[content_i].end;\r\n\r\n                } else {\r\n\r\n                    implicit_end = Math.max(implicit_end, element.contents[content_i].end);\r\n\r\n                }\r\n\r\n                s = element.contents[content_i];\r\n\r\n            }\r\n\r\n        }\r\n\r\n        /* determine desired end */\r\n        /* it is never made really clear in SMIL that the explicit end is offset by the implicit begin */\r\n\r\n        if (element.explicit_end !== null && element.explicit_dur !== null) {\r\n\r\n            element.end = Math.min(element.begin + element.explicit_dur, implicit_begin + element.explicit_end);\r\n\r\n        } else if (element.explicit_end === null && element.explicit_dur !== null) {\r\n\r\n            element.end = element.begin + element.explicit_dur;\r\n\r\n        } else if (element.explicit_end !== null && element.explicit_dur === null) {\r\n\r\n            element.end = implicit_begin + element.explicit_end;\r\n\r\n        } else {\r\n\r\n            element.end = implicit_end;\r\n        }\r\n\r\n        delete element.explicit_begin;\r\n        delete element.explicit_dur;\r\n        delete element.explicit_end;\r\n\r\n        doc._registerEvent(element);\r\n\r\n    }\r\n\r\n    function ForeignElement(node) {\r\n        this.node = node;\r\n    }\r\n\r\n    function TT() {\r\n        this.events = [];\r\n        this.head = new Head();\r\n        this.body = null;\r\n    }\r\n\r\n    TT.prototype.initFromNode = function (node, errorHandler) {\r\n\r\n        /* compute cell resolution */\r\n\r\n        var cr = extractCellResolution(node, errorHandler);\r\n        \r\n        this.cellLength = {\r\n                'h': new imscUtils.ComputedLength(0, 1/cr.h),\r\n                'w': new imscUtils.ComputedLength(1/cr.w, 0)\r\n            };\r\n\r\n        /* extract frame rate and tick rate */\r\n\r\n        var frtr = extractFrameAndTickRate(node, errorHandler);\r\n\r\n        this.effectiveFrameRate = frtr.effectiveFrameRate;\r\n\r\n        this.tickRate = frtr.tickRate;\r\n\r\n        /* extract aspect ratio */\r\n\r\n        this.aspectRatio = extractAspectRatio(node, errorHandler);\r\n\r\n        /* check timebase */\r\n\r\n        var attr = findAttribute(node, imscNames.ns_ttp, \"timeBase\");\r\n\r\n        if (attr !== null && attr !== \"media\") {\r\n\r\n            reportFatal(errorHandler, \"Unsupported time base\");\r\n\r\n        }\r\n\r\n        /* retrieve extent */\r\n\r\n        var e = extractExtent(node, errorHandler);\r\n\r\n        if (e === null) {\r\n\r\n            this.pxLength = {\r\n                'h': null,\r\n                'w': null\r\n            };\r\n\r\n        } else {\r\n\r\n            if (e.h.unit !== \"px\" || e.w.unit !== \"px\") {\r\n                reportFatal(errorHandler, \"Extent on TT must be in px or absent\");\r\n            }\r\n\r\n            this.pxLength = {\r\n                'h': new imscUtils.ComputedLength(0, 1 / e.h.value),\r\n                'w': new imscUtils.ComputedLength(1 / e.w.value, 0)\r\n            };\r\n        }\r\n        \r\n        /** set root container dimensions to (1, 1) arbitrarily\r\n          * the root container is mapped to actual dimensions at rendering\r\n        **/\r\n        \r\n        this.dimensions = {\r\n                'h': new imscUtils.ComputedLength(0, 1),\r\n                'w': new imscUtils.ComputedLength(1, 0)\r\n    };\r\n\r\n    };\r\n\r\n    /* register a temporal events */\r\n    TT.prototype._registerEvent = function (elem) {\r\n\r\n        /* skip if begin is not < then end */\r\n\r\n        if (elem.end <= elem.begin)\r\n            return;\r\n\r\n        /* index the begin time of the event */\r\n\r\n        var b_i = indexOf(this.events, elem.begin);\r\n\r\n        if (!b_i.found) {\r\n            this.events.splice(b_i.index, 0, elem.begin);\r\n        }\r\n\r\n        /* index the end time of the event */\r\n\r\n        if (elem.end !== Number.POSITIVE_INFINITY) {\r\n\r\n            var e_i = indexOf(this.events, elem.end);\r\n\r\n            if (!e_i.found) {\r\n                this.events.splice(e_i.index, 0, elem.end);\r\n            }\r\n\r\n        }\r\n\r\n    };\r\n\r\n\r\n    /*\r\n     * Retrieves the range of ISD times covered by the document\r\n     * \r\n     * @returns {Array} Array of two elements: min_begin_time and max_begin_time\r\n     * \r\n     */\r\n    TT.prototype.getMediaTimeRange = function () {\r\n\r\n        return [this.events[0], this.events[this.events.length - 1]];\r\n    };\r\n\r\n    /*\r\n     * Returns list of ISD begin times  \r\n     * \r\n     * @returns {Array}\r\n     */\r\n    TT.prototype.getMediaTimeEvents = function () {\r\n\r\n        return this.events;\r\n    };\r\n\r\n    /*\r\n     * Represents a TTML Head element\r\n     */\r\n\r\n    function Head() {\r\n        this.styling = new Styling();\r\n        this.layout = new Layout();\r\n    }\r\n\r\n    /*\r\n     * Represents a TTML Styling element\r\n     */\r\n\r\n    function Styling() {\r\n        this.styles = {};\r\n        this.initials = {};\r\n    }\r\n\r\n    /*\r\n     * Represents a TTML Style element\r\n     */\r\n\r\n    function Style() {\r\n        this.id = null;\r\n        this.styleAttrs = null;\r\n        this.styleRefs = null;\r\n    }\r\n\r\n    Style.prototype.initFromNode = function (node, errorHandler) {\r\n        this.id = elementGetXMLID(node);\r\n        this.styleAttrs = elementGetStyles(node, errorHandler);\r\n        this.styleRefs = elementGetStyleRefs(node);\r\n    };\r\n    \r\n    /*\r\n     * Represents a TTML initial element\r\n     */\r\n\r\n    function Initial() {\r\n        this.styleAttrs = null;\r\n    }\r\n\r\n    Initial.prototype.initFromNode = function (node, errorHandler) {\r\n        \r\n        this.styleAttrs = {};\r\n        \r\n        for (var i in node.attributes) {\r\n\r\n            if (node.attributes[i].uri === imscNames.ns_itts ||\r\n                node.attributes[i].uri === imscNames.ns_ebutts ||\r\n                node.attributes[i].uri === imscNames.ns_tts) {\r\n                \r\n                var qname = node.attributes[i].uri + \" \" + node.attributes[i].local;\r\n                \r\n                this.styleAttrs[qname] = node.attributes[i].value;\r\n\r\n            }\r\n        }\r\n        \r\n    };\r\n\r\n    /*\r\n     * Represents a TTML Layout element\r\n     * \r\n     */\r\n\r\n    function Layout() {\r\n        this.regions = {};\r\n    }\r\n    \r\n    /*\r\n     * Represents a TTML image element\r\n     */\r\n\r\n    function Image(src, type) {\r\n        ContentElement.call(this, 'image');\r\n        this.src = src;\r\n        this.type = type;\r\n    }\r\n\r\n    Image.prototype.initFromNode = function (doc, parent, node, errorHandler) {\r\n        this.src = 'src' in node.attributes ? node.attributes.src.value : null;\r\n        \r\n        if (! this.src) {\r\n            reportError(errorHandler, \"Invalid image@src attribute\");\r\n        }\r\n        \r\n        this.type = 'type' in node.attributes ? node.attributes.type.value : null;\r\n        \r\n        if (! this.type) {\r\n            reportError(errorHandler, \"Invalid image@type attribute\");\r\n        }\r\n        \r\n        StyledElement.prototype.initFromNode.call(this, doc, parent, node, errorHandler);\r\n        TimedElement.prototype.initFromNode.call(this, doc, parent, node, errorHandler);\r\n        AnimatedElement.prototype.initFromNode.call(this, doc, parent, node, errorHandler);\r\n        LayoutElement.prototype.initFromNode.call(this, doc, parent, node, errorHandler);\r\n    };\r\n\r\n    /*\r\n     * TTML element utility functions\r\n     * \r\n     */\r\n\r\n    function ContentElement(kind) {\r\n        this.kind = kind;\r\n    }\r\n\r\n    function IdentifiedElement(id) {\r\n        this.id = id;\r\n    }\r\n\r\n    IdentifiedElement.prototype.initFromNode = function (doc, parent, node, errorHandler) {\r\n        this.id = elementGetXMLID(node);\r\n    };\r\n\r\n    function LayoutElement(id) {\r\n        this.regionID = id;\r\n    }\r\n\r\n    LayoutElement.prototype.initFromNode = function (doc, parent, node, errorHandler) {\r\n        this.regionID = elementGetRegionID(node);\r\n    };\r\n\r\n    function StyledElement(styleAttrs) {\r\n        this.styleAttrs = styleAttrs;\r\n    }\r\n\r\n    StyledElement.prototype.initFromNode = function (doc, parent, node, errorHandler) {\r\n\r\n        this.styleAttrs = elementGetStyles(node, errorHandler);\r\n\r\n        if (doc.head !== null && doc.head.styling !== null) {\r\n            mergeReferencedStyles(doc.head.styling, elementGetStyleRefs(node), this.styleAttrs, errorHandler);\r\n        }\r\n\r\n    };\r\n\r\n    function AnimatedElement(sets) {\r\n        this.sets = sets;\r\n    }\r\n\r\n    AnimatedElement.prototype.initFromNode = function (doc, parent, node, errorHandler) {\r\n        this.sets = [];\r\n    };\r\n\r\n    function ContainerElement(contents) {\r\n        this.contents = contents;\r\n    }\r\n\r\n    ContainerElement.prototype.initFromNode = function (doc, parent, node, errorHandler) {\r\n        this.contents = [];\r\n    };\r\n\r\n    function TimedElement(explicit_begin, explicit_end, explicit_dur) {\r\n        this.explicit_begin = explicit_begin;\r\n        this.explicit_end = explicit_end;\r\n        this.explicit_dur = explicit_dur;\r\n    }\r\n\r\n    TimedElement.prototype.initFromNode = function (doc, parent, node, errorHandler) {\r\n        var t = processTiming(doc, parent, node, errorHandler);\r\n        this.explicit_begin = t.explicit_begin;\r\n        this.explicit_end = t.explicit_end;\r\n        this.explicit_dur = t.explicit_dur;\r\n\r\n        this.timeContainer = elementGetTimeContainer(node, errorHandler);\r\n    };\r\n\r\n\r\n    /*\r\n     * Represents a TTML body element\r\n     */\r\n\r\n\r\n\r\n    function Body() {\r\n        ContentElement.call(this, 'body');\r\n    }\r\n\r\n\r\n    Body.prototype.initFromNode = function (doc, node, errorHandler) {\r\n        StyledElement.prototype.initFromNode.call(this, doc, null, node, errorHandler);\r\n        TimedElement.prototype.initFromNode.call(this, doc, null, node, errorHandler);\r\n        AnimatedElement.prototype.initFromNode.call(this, doc, null, node, errorHandler);\r\n        LayoutElement.prototype.initFromNode.call(this, doc, null, node, errorHandler);\r\n        ContainerElement.prototype.initFromNode.call(this, doc, null, node, errorHandler);\r\n    };\r\n\r\n    /*\r\n     * Represents a TTML div element\r\n     */\r\n\r\n    function Div() {\r\n        ContentElement.call(this, 'div');\r\n    }\r\n\r\n    Div.prototype.initFromNode = function (doc, parent, node, errorHandler) {\r\n        StyledElement.prototype.initFromNode.call(this, doc, parent, node, errorHandler);\r\n        TimedElement.prototype.initFromNode.call(this, doc, parent, node, errorHandler);\r\n        AnimatedElement.prototype.initFromNode.call(this, doc, parent, node, errorHandler);\r\n        LayoutElement.prototype.initFromNode.call(this, doc, parent, node, errorHandler);\r\n        ContainerElement.prototype.initFromNode.call(this, doc, parent, node, errorHandler);\r\n    };\r\n\r\n    /*\r\n     * Represents a TTML p element\r\n     */\r\n\r\n    function P() {\r\n        ContentElement.call(this, 'p');\r\n    }\r\n\r\n    P.prototype.initFromNode = function (doc, parent, node, errorHandler) {\r\n        StyledElement.prototype.initFromNode.call(this, doc, parent, node, errorHandler);\r\n        TimedElement.prototype.initFromNode.call(this, doc, parent, node, errorHandler);\r\n        AnimatedElement.prototype.initFromNode.call(this, doc, parent, node, errorHandler);\r\n        LayoutElement.prototype.initFromNode.call(this, doc, parent, node, errorHandler);\r\n        ContainerElement.prototype.initFromNode.call(this, doc, parent, node, errorHandler);\r\n    };\r\n\r\n    /*\r\n     * Represents a TTML span element\r\n     */\r\n\r\n    function Span() {\r\n        ContentElement.call(this, 'span');\r\n    }\r\n\r\n    Span.prototype.initFromNode = function (doc, parent, node, xmlspace, errorHandler) {\r\n        StyledElement.prototype.initFromNode.call(this, doc, parent, node, errorHandler);\r\n        TimedElement.prototype.initFromNode.call(this, doc, parent, node, errorHandler);\r\n        AnimatedElement.prototype.initFromNode.call(this, doc, parent, node, errorHandler);\r\n        LayoutElement.prototype.initFromNode.call(this, doc, parent, node, errorHandler);\r\n        ContainerElement.prototype.initFromNode.call(this, doc, parent, node, errorHandler);\r\n\r\n        this.space = xmlspace;\r\n    };\r\n\r\n    /*\r\n     * Represents a TTML anonymous span element\r\n     */\r\n\r\n    function AnonymousSpan() {\r\n        ContentElement.call(this, 'span');\r\n    }\r\n\r\n    AnonymousSpan.prototype.initFromText = function (doc, parent, text, xmlspace, errorHandler) {\r\n        TimedElement.prototype.initFromNode.call(this, doc, parent, null, errorHandler);\r\n\r\n        this.text = text;\r\n        this.space = xmlspace;\r\n    };\r\n\r\n    /*\r\n     * Represents a TTML br element\r\n     */\r\n\r\n    function Br() {\r\n        ContentElement.call(this, 'br');\r\n    }\r\n\r\n    Br.prototype.initFromNode = function (doc, parent, node, errorHandler) {\r\n        LayoutElement.prototype.initFromNode.call(this, doc, parent, node, errorHandler);\r\n        TimedElement.prototype.initFromNode.call(this, doc, parent, node, errorHandler);\r\n    };\r\n\r\n    /*\r\n     * Represents a TTML Region element\r\n     * \r\n     */\r\n\r\n    function Region() {\r\n    }\r\n\r\n    Region.prototype.createDefaultRegion = function () {\r\n        var r = new Region();\r\n\r\n        IdentifiedElement.call(r, '');\r\n        StyledElement.call(r, {});\r\n        AnimatedElement.call(r, []);\r\n        TimedElement.call(r, 0, Number.POSITIVE_INFINITY, null);\r\n\r\n        return r;\r\n    };\r\n\r\n    Region.prototype.initFromNode = function (doc, node, errorHandler) {\r\n        IdentifiedElement.prototype.initFromNode.call(this, doc, null, node, errorHandler);\r\n        StyledElement.prototype.initFromNode.call(this, doc, null, node, errorHandler);\r\n        TimedElement.prototype.initFromNode.call(this, doc, null, node, errorHandler);\r\n        AnimatedElement.prototype.initFromNode.call(this, doc, null, node, errorHandler);\r\n\r\n        /* immediately merge referenced styles */\r\n\r\n        if (doc.head !== null && doc.head.styling !== null) {\r\n            mergeReferencedStyles(doc.head.styling, elementGetStyleRefs(node), this.styleAttrs, errorHandler);\r\n        }\r\n\r\n    };\r\n\r\n    /*\r\n     * Represents a TTML Set element\r\n     * \r\n     */\r\n\r\n    function Set() {\r\n    }\r\n\r\n    Set.prototype.initFromNode = function (doc, parent, node, errorHandler) {\r\n\r\n        TimedElement.prototype.initFromNode.call(this, doc, parent, node, errorHandler);\r\n\r\n        var styles = elementGetStyles(node, errorHandler);\r\n\r\n        this.qname = null;\r\n        this.value = null;\r\n\r\n        for (var qname in styles) {\r\n\r\n            if (this.qname) {\r\n\r\n                reportError(errorHandler, \"More than one style specified on set\");\r\n                break;\r\n\r\n            }\r\n\r\n            this.qname = qname;\r\n            this.value = styles[qname];\r\n\r\n        }\r\n\r\n    };\r\n\r\n    /*\r\n     * Utility functions\r\n     * \r\n     */\r\n\r\n\r\n    function elementGetXMLID(node) {\r\n        return node && 'xml:id' in node.attributes ? node.attributes['xml:id'].value || null : null;\r\n    }\r\n\r\n    function elementGetRegionID(node) {\r\n        return node && 'region' in node.attributes ? node.attributes.region.value : '';\r\n    }\r\n\r\n    function elementGetTimeContainer(node, errorHandler) {\r\n\r\n        var tc = node && 'timeContainer' in node.attributes ? node.attributes.timeContainer.value : null;\r\n\r\n        if ((!tc) || tc === \"par\") {\r\n\r\n            return \"par\";\r\n\r\n        } else if (tc === \"seq\") {\r\n\r\n            return \"seq\";\r\n\r\n        } else {\r\n\r\n            reportError(errorHandler, \"Illegal value of timeContainer (assuming 'par')\");\r\n\r\n            return \"par\";\r\n\r\n        }\r\n\r\n    }\r\n\r\n    function elementGetStyleRefs(node) {\r\n\r\n        return node && 'style' in node.attributes ? node.attributes.style.value.split(\" \") : [];\r\n\r\n    }\r\n\r\n    function elementGetStyles(node, errorHandler) {\r\n\r\n        var s = {};\r\n\r\n        if (node !== null) {\r\n\r\n            for (var i in node.attributes) {\r\n\r\n                var qname = node.attributes[i].uri + \" \" + node.attributes[i].local;\r\n\r\n                var sa = imscStyles.byQName[qname];\r\n\r\n                if (sa !== undefined) {\r\n\r\n                    var val = sa.parse(node.attributes[i].value);\r\n\r\n                    if (val !== null) {\r\n\r\n                        s[qname] = val;\r\n\r\n                        /* TODO: consider refactoring errorHandler into parse and compute routines */\r\n\r\n                        if (sa === imscStyles.byName.zIndex) {\r\n                            reportWarning(errorHandler, \"zIndex attribute present but not used by IMSC1 since regions do not overlap\");\r\n                        }\r\n\r\n                    } else {\r\n\r\n                        reportError(errorHandler, \"Cannot parse styling attribute \" + qname + \" --> \" + node.attributes[i].value);\r\n\r\n                    }\r\n\r\n                }\r\n\r\n            }\r\n\r\n        }\r\n\r\n        return s;\r\n    }\r\n\r\n    function findAttribute(node, ns, name) {\r\n        for (var i in node.attributes) {\r\n\r\n            if (node.attributes[i].uri === ns &&\r\n                    node.attributes[i].local === name) {\r\n\r\n                return node.attributes[i].value;\r\n            }\r\n        }\r\n\r\n        return null;\r\n    }\r\n\r\n    function extractAspectRatio(node, errorHandler) {\r\n\r\n        var ar = findAttribute(node, imscNames.ns_ittp, \"aspectRatio\");\r\n\r\n        if (ar === null) {\r\n            \r\n            ar = findAttribute(node, imscNames.ns_ttp, \"displayAspectRatio\");\r\n            \r\n        }\r\n\r\n        var rslt = null;\r\n\r\n        if (ar !== null) {\r\n\r\n            var ASPECT_RATIO_RE = /(\\d+)\\s+(\\d+)/;\r\n\r\n            var m = ASPECT_RATIO_RE.exec(ar);\r\n\r\n            if (m !== null) {\r\n\r\n                var w = parseInt(m[1]);\r\n\r\n                var h = parseInt(m[2]);\r\n\r\n                if (w !== 0 && h !== 0) {\r\n\r\n                    rslt = w / h;\r\n\r\n                } else {\r\n\r\n                    reportError(errorHandler, \"Illegal aspectRatio values (ignoring)\");\r\n                }\r\n\r\n            } else {\r\n\r\n                reportError(errorHandler, \"Malformed aspectRatio attribute (ignoring)\");\r\n            }\r\n\r\n        }\r\n\r\n        return rslt;\r\n\r\n    }\r\n\r\n    /*\r\n     * Returns the cellResolution attribute from a node\r\n     * \r\n     */\r\n    function extractCellResolution(node, errorHandler) {\r\n\r\n        var cr = findAttribute(node, imscNames.ns_ttp, \"cellResolution\");\r\n\r\n        // initial value\r\n\r\n        var h = 15;\r\n        var w = 32;\r\n\r\n        if (cr !== null) {\r\n\r\n            var CELL_RESOLUTION_RE = /(\\d+) (\\d+)/;\r\n\r\n            var m = CELL_RESOLUTION_RE.exec(cr);\r\n\r\n            if (m !== null) {\r\n\r\n                w = parseInt(m[1]);\r\n\r\n                h = parseInt(m[2]);\r\n\r\n            } else {\r\n\r\n                reportWarning(errorHandler, \"Malformed cellResolution value (using initial value instead)\");\r\n\r\n            }\r\n\r\n        }\r\n\r\n        return {'w': w, 'h': h};\r\n\r\n    }\r\n\r\n\r\n    function extractFrameAndTickRate(node, errorHandler) {\r\n\r\n        // subFrameRate is ignored per IMSC1 specification\r\n\r\n        // extract frame rate\r\n\r\n        var fps_attr = findAttribute(node, imscNames.ns_ttp, \"frameRate\");\r\n\r\n        // initial value\r\n\r\n        var fps = 30;\r\n\r\n        // match variable\r\n\r\n        var m;\r\n\r\n        if (fps_attr !== null) {\r\n\r\n            var FRAME_RATE_RE = /(\\d+)/;\r\n\r\n            m = FRAME_RATE_RE.exec(fps_attr);\r\n\r\n            if (m !== null) {\r\n\r\n                fps = parseInt(m[1]);\r\n\r\n            } else {\r\n\r\n                reportWarning(errorHandler, \"Malformed frame rate attribute (using initial value instead)\");\r\n            }\r\n\r\n        }\r\n\r\n        // extract frame rate multiplier\r\n\r\n        var frm_attr = findAttribute(node, imscNames.ns_ttp, \"frameRateMultiplier\");\r\n\r\n        // initial value\r\n\r\n        var frm = 1;\r\n\r\n        if (frm_attr !== null) {\r\n\r\n            var FRAME_RATE_MULT_RE = /(\\d+) (\\d+)/;\r\n\r\n            m = FRAME_RATE_MULT_RE.exec(frm_attr);\r\n\r\n            if (m !== null) {\r\n\r\n                frm = parseInt(m[1]) / parseInt(m[2]);\r\n\r\n            } else {\r\n\r\n                reportWarning(errorHandler, \"Malformed frame rate multiplier attribute (using initial value instead)\");\r\n            }\r\n\r\n        }\r\n\r\n        var efps = frm * fps;\r\n\r\n        // extract tick rate\r\n\r\n        var tr = 1;\r\n\r\n        var trattr = findAttribute(node, imscNames.ns_ttp, \"tickRate\");\r\n\r\n        if (trattr === null) {\r\n\r\n            if (fps_attr !== null)\r\n                tr = efps;\r\n\r\n        } else {\r\n\r\n            var TICK_RATE_RE = /(\\d+)/;\r\n\r\n            m = TICK_RATE_RE.exec(trattr);\r\n\r\n            if (m !== null) {\r\n\r\n                tr = parseInt(m[1]);\r\n\r\n            } else {\r\n\r\n                reportWarning(errorHandler, \"Malformed tick rate attribute (using initial value instead)\");\r\n            }\r\n\r\n        }\r\n\r\n        return {effectiveFrameRate: efps, tickRate: tr};\r\n\r\n    }\r\n\r\n    function extractExtent(node, errorHandler) {\r\n\r\n        var attr = findAttribute(node, imscNames.ns_tts, \"extent\");\r\n\r\n        if (attr === null)\r\n            return null;\r\n\r\n        var s = attr.split(\" \");\r\n\r\n        if (s.length !== 2) {\r\n\r\n            reportWarning(errorHandler, \"Malformed extent (ignoring)\");\r\n\r\n            return null;\r\n        }\r\n\r\n        var w = imscUtils.parseLength(s[0]);\r\n\r\n        var h = imscUtils.parseLength(s[1]);\r\n\r\n        if (!h || !w) {\r\n\r\n            reportWarning(errorHandler, \"Malformed extent values (ignoring)\");\r\n\r\n            return null;\r\n        }\r\n\r\n        return {'h': h, 'w': w};\r\n\r\n    }\r\n\r\n    function parseTimeExpression(tickRate, effectiveFrameRate, str) {\r\n\r\n        var CLOCK_TIME_FRACTION_RE = /^(\\d{2,}):(\\d\\d):(\\d\\d(?:\\.\\d+)?)$/;\r\n        var CLOCK_TIME_FRAMES_RE = /^(\\d{2,}):(\\d\\d):(\\d\\d)\\:(\\d{2,})$/;\r\n        var OFFSET_FRAME_RE = /^(\\d+(?:\\.\\d+)?)f$/;\r\n        var OFFSET_TICK_RE = /^(\\d+(?:\\.\\d+)?)t$/;\r\n        var OFFSET_MS_RE = /^(\\d+(?:\\.\\d+)?)ms$/;\r\n        var OFFSET_S_RE = /^(\\d+(?:\\.\\d+)?)s$/;\r\n        var OFFSET_H_RE = /^(\\d+(?:\\.\\d+)?)h$/;\r\n        var OFFSET_M_RE = /^(\\d+(?:\\.\\d+)?)m$/;\r\n        var m;\r\n        var r = null;\r\n        if ((m = OFFSET_FRAME_RE.exec(str)) !== null) {\r\n\r\n            if (effectiveFrameRate !== null) {\r\n\r\n                r = parseFloat(m[1]) / effectiveFrameRate;\r\n            }\r\n\r\n        } else if ((m = OFFSET_TICK_RE.exec(str)) !== null) {\r\n\r\n            if (tickRate !== null) {\r\n\r\n                r = parseFloat(m[1]) / tickRate;\r\n            }\r\n\r\n        } else if ((m = OFFSET_MS_RE.exec(str)) !== null) {\r\n\r\n            r = parseFloat(m[1]) / 1000.0;\r\n\r\n        } else if ((m = OFFSET_S_RE.exec(str)) !== null) {\r\n\r\n            r = parseFloat(m[1]);\r\n\r\n        } else if ((m = OFFSET_H_RE.exec(str)) !== null) {\r\n\r\n            r = parseFloat(m[1]) * 3600.0;\r\n\r\n        } else if ((m = OFFSET_M_RE.exec(str)) !== null) {\r\n\r\n            r = parseFloat(m[1]) * 60.0;\r\n\r\n        } else if ((m = CLOCK_TIME_FRACTION_RE.exec(str)) !== null) {\r\n\r\n            r = parseInt(m[1]) * 3600 +\r\n                    parseInt(m[2]) * 60 +\r\n                    parseFloat(m[3]);\r\n\r\n        } else if ((m = CLOCK_TIME_FRAMES_RE.exec(str)) !== null) {\r\n\r\n            /* this assumes that HH:MM:SS is a clock-time-with-fraction */\r\n\r\n            if (effectiveFrameRate !== null) {\r\n\r\n                r = parseInt(m[1]) * 3600 +\r\n                        parseInt(m[2]) * 60 +\r\n                        parseInt(m[3]) +\r\n                        (m[4] === null ? 0 : parseInt(m[4]) / effectiveFrameRate);\r\n            }\r\n\r\n        }\r\n\r\n        return r;\r\n    }\r\n\r\n    function processTiming(doc, parent, node, errorHandler) {\r\n\r\n        /* determine explicit begin */\r\n\r\n        var explicit_begin = null;\r\n\r\n        if (node && 'begin' in node.attributes) {\r\n\r\n            explicit_begin = parseTimeExpression(doc.tickRate, doc.effectiveFrameRate, node.attributes.begin.value);\r\n\r\n            if (explicit_begin === null) {\r\n\r\n                reportWarning(errorHandler, \"Malformed begin value \" + node.attributes.begin.value + \" (using 0)\");\r\n\r\n            }\r\n\r\n        }\r\n\r\n        /* determine explicit duration */\r\n\r\n        var explicit_dur = null;\r\n\r\n        if (node && 'dur' in node.attributes) {\r\n\r\n            explicit_dur = parseTimeExpression(doc.tickRate, doc.effectiveFrameRate, node.attributes.dur.value);\r\n\r\n            if (explicit_dur === null) {\r\n\r\n                reportWarning(errorHandler, \"Malformed dur value \" + node.attributes.dur.value + \" (ignoring)\");\r\n\r\n            }\r\n\r\n        }\r\n\r\n        /* determine explicit end */\r\n\r\n        var explicit_end = null;\r\n\r\n        if (node && 'end' in node.attributes) {\r\n\r\n            explicit_end = parseTimeExpression(doc.tickRate, doc.effectiveFrameRate, node.attributes.end.value);\r\n\r\n            if (explicit_end === null) {\r\n\r\n                reportWarning(errorHandler, \"Malformed end value (ignoring)\");\r\n\r\n            }\r\n\r\n        }\r\n\r\n        return {explicit_begin: explicit_begin,\r\n            explicit_end: explicit_end,\r\n            explicit_dur: explicit_dur};\r\n\r\n    }\r\n\r\n\r\n\r\n    function mergeChainedStyles(styling, style, errorHandler) {\r\n\r\n        while (style.styleRefs.length > 0) {\r\n\r\n            var sref = style.styleRefs.pop();\r\n\r\n            if (!(sref in styling.styles)) {\r\n                reportError(errorHandler, \"Non-existant style id referenced\");\r\n                continue;\r\n            }\r\n\r\n            mergeChainedStyles(styling, styling.styles[sref], errorHandler);\r\n\r\n            mergeStylesIfNotPresent(styling.styles[sref].styleAttrs, style.styleAttrs);\r\n\r\n        }\r\n\r\n    }\r\n\r\n    function mergeReferencedStyles(styling, stylerefs, styleattrs, errorHandler) {\r\n\r\n        for (var i = stylerefs.length - 1; i >= 0; i--) {\r\n\r\n            var sref = stylerefs[i];\r\n\r\n            if (!(sref in styling.styles)) {\r\n                reportError(errorHandler, \"Non-existant style id referenced\");\r\n                continue;\r\n            }\r\n\r\n            mergeStylesIfNotPresent(styling.styles[sref].styleAttrs, styleattrs);\r\n\r\n        }\r\n\r\n    }\r\n\r\n    function mergeStylesIfNotPresent(from_styles, into_styles) {\r\n\r\n        for (var sname in from_styles) {\r\n\r\n            if (sname in into_styles)\r\n                continue;\r\n\r\n            into_styles[sname] = from_styles[sname];\r\n\r\n        }\r\n\r\n    }\r\n\r\n    /* TODO: validate style format at parsing */\r\n\r\n\r\n    /*\r\n     * ERROR HANDLING UTILITY FUNCTIONS\r\n     * \r\n     */\r\n\r\n    function reportInfo(errorHandler, msg) {\r\n\r\n        if (errorHandler && errorHandler.info && errorHandler.info(msg))\r\n            throw msg;\r\n\r\n    }\r\n\r\n    function reportWarning(errorHandler, msg) {\r\n\r\n        if (errorHandler && errorHandler.warn && errorHandler.warn(msg))\r\n            throw msg;\r\n\r\n    }\r\n\r\n    function reportError(errorHandler, msg) {\r\n\r\n        if (errorHandler && errorHandler.error && errorHandler.error(msg))\r\n            throw msg;\r\n\r\n    }\r\n\r\n    function reportFatal(errorHandler, msg) {\r\n\r\n        if (errorHandler && errorHandler.fatal)\r\n            errorHandler.fatal(msg);\r\n\r\n        throw msg;\r\n\r\n    }\r\n\r\n    /*\r\n     * Binary search utility function\r\n     * \r\n     * @typedef {Object} BinarySearchResult\r\n     * @property {boolean} found Was an exact match found?\r\n     * @property {number} index Position of the exact match or insert position\r\n     * \r\n     * @returns {BinarySearchResult}\r\n     */\r\n\r\n    function indexOf(arr, searchval) {\r\n\r\n        var min = 0;\r\n        var max = arr.length - 1;\r\n        var cur;\r\n\r\n        while (min <= max) {\r\n\r\n            cur = Math.floor((min + max) / 2);\r\n\r\n            var curval = arr[cur];\r\n\r\n            if (curval < searchval) {\r\n\r\n                min = cur + 1;\r\n\r\n            } else if (curval > searchval) {\r\n\r\n                max = cur - 1;\r\n\r\n            } else {\r\n\r\n                return {found: true, index: cur};\r\n\r\n            }\r\n\r\n        }\r\n\r\n        return {found: false, index: min};\r\n    }\r\n\r\n\r\n})(typeof exports === 'undefined' ? this.imscDoc = {} : exports,\r\n        typeof sax === 'undefined' ? require(\"sax\") : sax,\r\n        typeof imscNames === 'undefined' ? require(\"./names\") : imscNames,\r\n        typeof imscStyles === 'undefined' ? require(\"./styles\") : imscStyles,\r\n        typeof imscUtils === 'undefined' ? require(\"./utils\") : imscUtils);\r\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _Constants=require('../../constants/Constants');var _Constants2=_interopRequireDefault(_Constants);var _FactoryMaker=require('../../../core/FactoryMaker');var _FactoryMaker2=_interopRequireDefault(_FactoryMaker);var _MetricsConstants=require('../../constants/MetricsConstants');var _MetricsConstants2=_interopRequireDefault(_MetricsConstants);function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}function BufferLevelRule(config){config=config||{};var dashMetrics=config.dashMetrics;var mediaPlayerModel=config.mediaPlayerModel;var textController=config.textController;var abrController=config.abrController;var settings=config.settings;function setup(){}function execute(streamProcessor,videoTrackPresent){if(!streamProcessor){return true;}var bufferLevel=dashMetrics.getCurrentBufferLevel(streamProcessor.getType());return bufferLevel<getBufferTarget(streamProcessor,videoTrackPresent);}function getBufferTarget(streamProcessor,videoTrackPresent){var bufferTarget=NaN;if(!streamProcessor){return bufferTarget;}var type=streamProcessor.getType();var representationInfo=streamProcessor.getRepresentationInfo();if(type===_Constants2.default.FRAGMENTED_TEXT){if(textController.isTextEnabled()){if(isNaN(representationInfo.fragmentDuration)){//fragmentDuration of representationInfo is not defined,\n// call metrics function to have data in the latest scheduling info...\n// if no metric, returns 0. In this case, rule will return false.\nvar schedulingInfo=dashMetrics.getCurrentSchedulingInfo(_MetricsConstants2.default.SCHEDULING_INFO);bufferTarget=schedulingInfo?schedulingInfo.duration:0;}else{bufferTarget=representationInfo.fragmentDuration;}}else{// text is disabled, rule will return false\nbufferTarget=0;}}else if(type===_Constants2.default.AUDIO&&videoTrackPresent){var videoBufferLevel=dashMetrics.getCurrentBufferLevel(_Constants2.default.VIDEO);if(isNaN(representationInfo.fragmentDuration)){bufferTarget=videoBufferLevel;}else{bufferTarget=Math.max(videoBufferLevel,representationInfo.fragmentDuration);}}else{var streamInfo=representationInfo.mediaInfo.streamInfo;if(abrController.isPlayingAtTopQuality(streamInfo)){var isLongFormContent=streamInfo.manifestInfo.duration>=settings.get().streaming.longFormContentDurationThreshold;bufferTarget=isLongFormContent?settings.get().streaming.bufferTimeAtTopQualityLongForm:settings.get().streaming.bufferTimeAtTopQuality;}else{bufferTarget=mediaPlayerModel.getStableBufferTime();}}return bufferTarget;}var instance={execute:execute,getBufferTarget:getBufferTarget};setup();return instance;}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n */BufferLevelRule.__dashjs_factory_name='BufferLevelRule';exports.default=_FactoryMaker2.default.getClassFactory(BufferLevelRule);\n//# sourceMappingURL=BufferLevelRule.js.map\n","var id = 0;\nvar postfix = Math.random();\n\nmodule.exports = function (key) {\n  return 'Symbol(' + String(key === undefined ? '' : key) + ')_' + (++id + postfix).toString(36);\n};\n","var DESCRIPTORS = require('../internals/descriptors');\nvar definePropertyModule = require('../internals/object-define-property');\nvar createPropertyDescriptor = require('../internals/create-property-descriptor');\n\nmodule.exports = DESCRIPTORS ? function (object, key, value) {\n  return definePropertyModule.f(object, key, createPropertyDescriptor(1, value));\n} : function (object, key, value) {\n  object[key] = value;\n  return object;\n};\n","exports.read = function (buffer, offset, isLE, mLen, nBytes) {\n  var e, m\n  var eLen = (nBytes * 8) - mLen - 1\n  var eMax = (1 << eLen) - 1\n  var eBias = eMax >> 1\n  var nBits = -7\n  var i = isLE ? (nBytes - 1) : 0\n  var d = isLE ? -1 : 1\n  var s = buffer[offset + i]\n\n  i += d\n\n  e = s & ((1 << (-nBits)) - 1)\n  s >>= (-nBits)\n  nBits += eLen\n  for (; nBits > 0; e = (e * 256) + buffer[offset + i], i += d, nBits -= 8) {}\n\n  m = e & ((1 << (-nBits)) - 1)\n  e >>= (-nBits)\n  nBits += mLen\n  for (; nBits > 0; m = (m * 256) + buffer[offset + i], i += d, nBits -= 8) {}\n\n  if (e === 0) {\n    e = 1 - eBias\n  } else if (e === eMax) {\n    return m ? NaN : ((s ? -1 : 1) * Infinity)\n  } else {\n    m = m + Math.pow(2, mLen)\n    e = e - eBias\n  }\n  return (s ? -1 : 1) * m * Math.pow(2, e - mLen)\n}\n\nexports.write = function (buffer, value, offset, isLE, mLen, nBytes) {\n  var e, m, c\n  var eLen = (nBytes * 8) - mLen - 1\n  var eMax = (1 << eLen) - 1\n  var eBias = eMax >> 1\n  var rt = (mLen === 23 ? Math.pow(2, -24) - Math.pow(2, -77) : 0)\n  var i = isLE ? 0 : (nBytes - 1)\n  var d = isLE ? 1 : -1\n  var s = value < 0 || (value === 0 && 1 / value < 0) ? 1 : 0\n\n  value = Math.abs(value)\n\n  if (isNaN(value) || value === Infinity) {\n    m = isNaN(value) ? 1 : 0\n    e = eMax\n  } else {\n    e = Math.floor(Math.log(value) / Math.LN2)\n    if (value * (c = Math.pow(2, -e)) < 1) {\n      e--\n      c *= 2\n    }\n    if (e + eBias >= 1) {\n      value += rt / c\n    } else {\n      value += rt * Math.pow(2, 1 - eBias)\n    }\n    if (value * c >= 2) {\n      e++\n      c /= 2\n    }\n\n    if (e + eBias >= eMax) {\n      m = 0\n      e = eMax\n    } else if (e + eBias >= 1) {\n      m = ((value * c) - 1) * Math.pow(2, mLen)\n      e = e + eBias\n    } else {\n      m = value * Math.pow(2, eBias - 1) * Math.pow(2, mLen)\n      e = 0\n    }\n  }\n\n  for (; mLen >= 8; buffer[offset + i] = m & 0xff, i += d, m /= 256, mLen -= 8) {}\n\n  e = (e << mLen) | m\n  eLen += mLen\n  for (; eLen > 0; buffer[offset + i] = e & 0xff, i += d, e /= 256, eLen -= 8) {}\n\n  buffer[offset + i - d] |= s * 128\n}\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _FactoryMaker=require('../../core/FactoryMaker');var _FactoryMaker2=_interopRequireDefault(_FactoryMaker);var _SwitchRequest=require('./SwitchRequest');var _SwitchRequest2=_interopRequireDefault(_SwitchRequest);function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n */var SWITCH_REQUEST_HISTORY_DEPTH=8;// must be > SwitchHistoryRule SAMPLE_SIZE to enable rule\nfunction SwitchRequestHistory(){var switchRequests=[];// running total\nvar srHistory=[];// history of each switch\nfunction push(switchRequest){if(switchRequest.newValue===_SwitchRequest2.default.NO_CHANGE){switchRequest.newValue=switchRequest.oldValue;}if(!switchRequests[switchRequest.oldValue]){switchRequests[switchRequest.oldValue]={noDrops:0,drops:0,dropSize:0};}// Set switch details\nvar indexDiff=switchRequest.newValue-switchRequest.oldValue;var drop=indexDiff<0?1:0;var dropSize=drop?-indexDiff:0;var noDrop=drop?0:1;// Update running totals\nswitchRequests[switchRequest.oldValue].drops+=drop;switchRequests[switchRequest.oldValue].dropSize+=dropSize;switchRequests[switchRequest.oldValue].noDrops+=noDrop;// Save to history\nsrHistory.push({idx:switchRequest.oldValue,noDrop:noDrop,drop:drop,dropSize:dropSize});// Shift earliest switch off srHistory and readjust to keep depth of running totals constant\nif(srHistory.length>SWITCH_REQUEST_HISTORY_DEPTH){var srHistoryFirst=srHistory.shift();switchRequests[srHistoryFirst.idx].drops-=srHistoryFirst.drop;switchRequests[srHistoryFirst.idx].dropSize-=srHistoryFirst.dropSize;switchRequests[srHistoryFirst.idx].noDrops-=srHistoryFirst.noDrop;}}function getSwitchRequests(){return switchRequests;}function reset(){switchRequests=[];srHistory=[];}return{push:push,getSwitchRequests:getSwitchRequests,reset:reset};}SwitchRequestHistory.__dashjs_factory_name='SwitchRequestHistory';var factory=_FactoryMaker2.default.getClassFactory(SwitchRequestHistory);exports.default=factory;\n//# sourceMappingURL=SwitchRequestHistory.js.map\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _typeof=typeof Symbol===\"function\"&&typeof Symbol.iterator===\"symbol\"?function(obj){return typeof obj;}:function(obj){return obj&&typeof Symbol===\"function\"&&obj.constructor===Symbol&&obj!==Symbol.prototype?\"symbol\":typeof obj;};var _createClass=function(){function defineProperties(target,props){for(var i=0;i<props.length;i++){var descriptor=props[i];descriptor.enumerable=descriptor.enumerable||false;descriptor.configurable=true;if(\"value\"in descriptor)descriptor.writable=true;Object.defineProperty(target,descriptor.key,descriptor);}}return function(Constructor,protoProps,staticProps){if(protoProps)defineProperties(Constructor.prototype,protoProps);if(staticProps)defineProperties(Constructor,staticProps);return Constructor;};}();function _classCallCheck(instance,Constructor){if(!(instance instanceof Constructor)){throw new TypeError(\"Cannot call a class as a function\");}}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n *//**\n * @class\n * @ignore\n */var Utils=function(){function Utils(){_classCallCheck(this,Utils);}_createClass(Utils,null,[{key:'mixin',value:function mixin(dest,source,copy){var s=void 0;var empty={};if(dest){for(var name in source){if(source.hasOwnProperty(name)){s=source[name];if(!(name in dest)||dest[name]!==s&&(!(name in empty)||empty[name]!==s)){if(_typeof(dest[name])==='object'&&dest[name]!==null){dest[name]=Utils.mixin(dest[name],s,copy);}else{dest[name]=copy(s);}}}}}return dest;}},{key:'clone',value:function clone(src){if(!src||(typeof src==='undefined'?'undefined':_typeof(src))!=='object'){return src;// anything\n}var r=void 0;if(src instanceof Array){// array\nr=[];for(var i=0,l=src.length;i<l;++i){if(i in src){r.push(Utils.clone(src[i]));}}}else{r={};}return Utils.mixin(r,src,Utils.clone);}},{key:'addAditionalQueryParameterToUrl',value:function addAditionalQueryParameterToUrl(url,params){try{if(!params||params.length===0){return url;}var modifiedUrl=new URL(url);params.forEach(function(param){if(param.key&&param.value){modifiedUrl.searchParams.set(param.key,param.value);}});return modifiedUrl.href;}catch(e){return url;}}},{key:'generateUuid',value:function generateUuid(){var dt=new Date().getTime();var uuid='xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g,function(c){var r=(dt+Math.random()*16)%16|0;dt=Math.floor(dt/16);return(c=='x'?r:r&0x3|0x8).toString(16);});return uuid;}},{key:'generateHashCode',value:function generateHashCode(string){var hash=0;if(string.length===0){return hash;}for(var i=0;i<string.length;i++){var chr=string.charCodeAt(i);hash=(hash<<5)-hash+chr;hash|=0;}return hash;}}]);return Utils;}();exports.default=Utils;\n//# sourceMappingURL=Utils.js.map\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _FactoryMaker=require('../../core/FactoryMaker');var _FactoryMaker2=_interopRequireDefault(_FactoryMaker);function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}var NO_CHANGE=-1;/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n */var PRIORITY={DEFAULT:0.5,STRONG:1,WEAK:0};function SwitchRequest(q,r,p){//TODO refactor all the calls to this to use config to be like everything else.\nvar instance=void 0,quality=void 0,priority=void 0,reason=void 0;// check priority value\nfunction getPriority(p){var ret=PRIORITY.DEFAULT;// check that p is one of declared priority value\nif(p===PRIORITY.DEFAULT||p===PRIORITY.STRONG||p===PRIORITY.WEAK){ret=p;}return ret;}// init attributes\nquality=q===undefined?NO_CHANGE:q;priority=getPriority(p);reason=r===undefined?null:r;instance={quality:quality,reason:reason,priority:priority};return instance;}SwitchRequest.__dashjs_factory_name='SwitchRequest';var factory=_FactoryMaker2.default.getClassFactory(SwitchRequest);factory.NO_CHANGE=NO_CHANGE;factory.PRIORITY=PRIORITY;_FactoryMaker2.default.updateClassFactory(SwitchRequest.__dashjs_factory_name,factory);exports.default=factory;\n//# sourceMappingURL=SwitchRequest.js.map\n","var fails = require('../internals/fails');\n\nvar replacement = /#|\\.prototype\\./;\n\nvar isForced = function (feature, detection) {\n  var value = data[normalize(feature)];\n  return value == POLYFILL ? true\n    : value == NATIVE ? false\n    : typeof detection == 'function' ? fails(detection)\n    : !!detection;\n};\n\nvar normalize = isForced.normalize = function (string) {\n  return String(string).replace(replacement, '.').toLowerCase();\n};\n\nvar data = isForced.data = {};\nvar NATIVE = isForced.NATIVE = 'N';\nvar POLYFILL = isForced.POLYFILL = 'P';\n\nmodule.exports = isForced;\n","\"use strict\";Object.defineProperty(exports,\"__esModule\",{value:true});function _classCallCheck(instance,Constructor){if(!(instance instanceof Constructor)){throw new TypeError(\"Cannot call a class as a function\");}}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n *//**\n * @class\n * @ignore\n */var Mpd=function Mpd(){_classCallCheck(this,Mpd);this.manifest=null;this.suggestedPresentationDelay=0;this.availabilityStartTime=null;this.availabilityEndTime=Number.POSITIVE_INFINITY;this.timeShiftBufferDepth=Number.POSITIVE_INFINITY;this.maxSegmentDuration=Number.POSITIVE_INFINITY;this.minimumUpdatePeriod=NaN;this.mediaPresentationDuration=NaN;};exports.default=Mpd;\n//# sourceMappingURL=Mpd.js.map\n","'use strict';\n\nif (typeof process === 'undefined' ||\n    !process.version ||\n    process.version.indexOf('v0.') === 0 ||\n    process.version.indexOf('v1.') === 0 && process.version.indexOf('v1.8.') !== 0) {\n  module.exports = { nextTick: nextTick };\n} else {\n  module.exports = process\n}\n\nfunction nextTick(fn, arg1, arg2, arg3) {\n  if (typeof fn !== 'function') {\n    throw new TypeError('\"callback\" argument must be a function');\n  }\n  var len = arguments.length;\n  var args, i;\n  switch (len) {\n  case 0:\n  case 1:\n    return process.nextTick(fn);\n  case 2:\n    return process.nextTick(function afterTickOne() {\n      fn.call(null, arg1);\n    });\n  case 3:\n    return process.nextTick(function afterTickTwo() {\n      fn.call(null, arg1, arg2);\n    });\n  case 4:\n    return process.nextTick(function afterTickThree() {\n      fn.call(null, arg1, arg2, arg3);\n    });\n  default:\n    args = new Array(len - 1);\n    i = 0;\n    while (i < args.length) {\n      args[i++] = arguments[i];\n    }\n    return process.nextTick(function afterTick() {\n      fn.apply(null, args);\n    });\n  }\n}\n\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _Errors=require('../../core/errors/Errors');var _Errors2=_interopRequireDefault(_Errors);var _EventBus=require('../../core/EventBus');var _EventBus2=_interopRequireDefault(_EventBus);var _Events=require('../../core/events/Events');var _Events2=_interopRequireDefault(_Events);var _BlacklistController=require('../controllers/BlacklistController');var _BlacklistController2=_interopRequireDefault(_BlacklistController);var _DVBSelector=require('./baseUrlResolution/DVBSelector');var _DVBSelector2=_interopRequireDefault(_DVBSelector);var _BasicSelector=require('./baseUrlResolution/BasicSelector');var _BasicSelector2=_interopRequireDefault(_BasicSelector);var _FactoryMaker=require('../../core/FactoryMaker');var _FactoryMaker2=_interopRequireDefault(_FactoryMaker);var _DashJSError=require('../vo/DashJSError');var _DashJSError2=_interopRequireDefault(_DashJSError);var _SupervisorTools=require('../utils/SupervisorTools');function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}function BaseURLSelector(){var context=this.context;var eventBus=(0,_EventBus2.default)(context).getInstance();var instance=void 0,serviceLocationBlacklistController=void 0,basicSelector=void 0,dvbSelector=void 0,selector=void 0;function setup(){serviceLocationBlacklistController=(0,_BlacklistController2.default)(context).create({updateEventName:_Events2.default.SERVICE_LOCATION_BLACKLIST_CHANGED,addBlacklistEventName:_Events2.default.SERVICE_LOCATION_BLACKLIST_ADD});basicSelector=(0,_BasicSelector2.default)(context).create({blacklistController:serviceLocationBlacklistController});dvbSelector=(0,_DVBSelector2.default)(context).create({blacklistController:serviceLocationBlacklistController});selector=basicSelector;}function setConfig(config){if(config.selector){selector=config.selector;}}function chooseSelector(isDVB){(0,_SupervisorTools.checkParameterType)(isDVB,'boolean');selector=isDVB?dvbSelector:basicSelector;}function select(data){if(!data){return;}var baseUrls=data.baseUrls;var selectedIdx=data.selectedIdx;// Once a random selection has been carried out amongst a group of BaseURLs with the same\n// @priority attribute value, then that choice should be re-used if the selection needs to be made again\n// unless the blacklist has been modified or the available BaseURLs have changed.\nif(!isNaN(selectedIdx)){return baseUrls[selectedIdx];}var selectedBaseUrl=selector.select(baseUrls);if(!selectedBaseUrl){eventBus.trigger(_Events2.default.URL_RESOLUTION_FAILED,{error:new _DashJSError2.default(_Errors2.default.URL_RESOLUTION_FAILED_GENERIC_ERROR_CODE,_Errors2.default.URL_RESOLUTION_FAILED_GENERIC_ERROR_MESSAGE)});if(selector===basicSelector){reset();}return;}data.selectedIdx=baseUrls.indexOf(selectedBaseUrl);return selectedBaseUrl;}function reset(){serviceLocationBlacklistController.reset();}instance={chooseSelector:chooseSelector,select:select,reset:reset,setConfig:setConfig};setup();return instance;}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n */BaseURLSelector.__dashjs_factory_name='BaseURLSelector';exports.default=_FactoryMaker2.default.getClassFactory(BaseURLSelector);\n//# sourceMappingURL=BaseURLSelector.js.map\n","\"use strict\";Object.defineProperty(exports,\"__esModule\",{value:true});function _classCallCheck(instance,Constructor){if(!(instance instanceof Constructor)){throw new TypeError(\"Cannot call a class as a function\");}}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n *//**\n * @class\n * @ignore\n */var RequestsQueue=/**\n     * @description This Object holds reference to Fragment Model's request queues\n     */function RequestsQueue(){_classCallCheck(this,RequestsQueue);/**\n         * Array of all of the requests that have begun to load\n         * This request may not make it into the executed queue if it is abandon due to ABR rules for example.\n         * @public\n         */this.loadingRequests=[];/**\n         * Array of the The requests that have completed\n         * @public\n         */this.executedRequests=[];};exports.default=RequestsQueue;\n//# sourceMappingURL=RequestsQueue.js.map\n","'use strict';\nvar $ = require('../internals/export');\nvar fails = require('../internals/fails');\nvar isArray = require('../internals/is-array');\nvar isObject = require('../internals/is-object');\nvar toObject = require('../internals/to-object');\nvar toLength = require('../internals/to-length');\nvar createProperty = require('../internals/create-property');\nvar arraySpeciesCreate = require('../internals/array-species-create');\nvar arrayMethodHasSpeciesSupport = require('../internals/array-method-has-species-support');\nvar wellKnownSymbol = require('../internals/well-known-symbol');\nvar V8_VERSION = require('../internals/engine-v8-version');\n\nvar IS_CONCAT_SPREADABLE = wellKnownSymbol('isConcatSpreadable');\nvar MAX_SAFE_INTEGER = 0x1FFFFFFFFFFFFF;\nvar MAXIMUM_ALLOWED_INDEX_EXCEEDED = 'Maximum allowed index exceeded';\n\n// We can't use this feature detection in V8 since it causes\n// deoptimization and serious performance degradation\n// https://github.com/zloirock/core-js/issues/679\nvar IS_CONCAT_SPREADABLE_SUPPORT = V8_VERSION >= 51 || !fails(function () {\n  var array = [];\n  array[IS_CONCAT_SPREADABLE] = false;\n  return array.concat()[0] !== array;\n});\n\nvar SPECIES_SUPPORT = arrayMethodHasSpeciesSupport('concat');\n\nvar isConcatSpreadable = function (O) {\n  if (!isObject(O)) return false;\n  var spreadable = O[IS_CONCAT_SPREADABLE];\n  return spreadable !== undefined ? !!spreadable : isArray(O);\n};\n\nvar FORCED = !IS_CONCAT_SPREADABLE_SUPPORT || !SPECIES_SUPPORT;\n\n// `Array.prototype.concat` method\n// https://tc39.github.io/ecma262/#sec-array.prototype.concat\n// with adding support of @@isConcatSpreadable and @@species\n$({ target: 'Array', proto: true, forced: FORCED }, {\n  concat: function concat(arg) { // eslint-disable-line no-unused-vars\n    var O = toObject(this);\n    var A = arraySpeciesCreate(O, 0);\n    var n = 0;\n    var i, k, length, len, E;\n    for (i = -1, length = arguments.length; i < length; i++) {\n      E = i === -1 ? O : arguments[i];\n      if (isConcatSpreadable(E)) {\n        len = toLength(E.length);\n        if (n + len > MAX_SAFE_INTEGER) throw TypeError(MAXIMUM_ALLOWED_INDEX_EXCEEDED);\n        for (k = 0; k < len; k++, n++) if (k in E) createProperty(A, n, E[k]);\n      } else {\n        if (n >= MAX_SAFE_INTEGER) throw TypeError(MAXIMUM_ALLOWED_INDEX_EXCEEDED);\n        createProperty(A, n++, E);\n      }\n    }\n    A.length = n;\n    return A;\n  }\n});\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _typeof=typeof Symbol===\"function\"&&typeof Symbol.iterator===\"symbol\"?function(obj){return typeof obj;}:function(obj){return obj&&typeof Symbol===\"function\"&&obj.constructor===Symbol&&obj!==Symbol.prototype?\"symbol\":typeof obj;};var _FactoryMaker=require('./FactoryMaker');var _FactoryMaker2=_interopRequireDefault(_FactoryMaker);var _Utils=require('./Utils.js');var _Utils2=_interopRequireDefault(_Utils);var _Debug=require('../core/Debug');var _Debug2=_interopRequireDefault(_Debug);var _Constants=require('../streaming/constants/Constants');var _Constants2=_interopRequireDefault(_Constants);var _HTTPRequest=require('../streaming/vo/metrics/HTTPRequest');function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}function _defineProperty(obj,key,value){if(key in obj){Object.defineProperty(obj,key,{value:value,enumerable:true,configurable:true,writable:true});}else{obj[key]=value;}return obj;}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n *//** @module Settings\n * @description Define the configuration parameters of Dash.js MediaPlayer.\n * @see {@link module:Settings~PlayerSettings PlayerSettings} for further information about the supported configuration properties\n *//**\n * @typedef {Object} PlayerSettings\n * @property {module:Settings~DebugSettings} [debug] Debug related settings\n * @property {module:Settings~StreamingSettings} [streaming] Streaming related settings\n * @example\n *\n * // Full settings object\n * settings = {\n *      debug: {\n *          logLevel: Debug.LOG_LEVEL_WARNING\n *      },\n *      streaming: {\n *          metricsMaxListDepth: 1000,\n *          abandonLoadTimeout: 10000,\n *          liveDelayFragmentCount: NaN,\n *          liveDelay: null,\n *          scheduleWhilePaused: true,\n *          fastSwitchEnabled: false,\n *          bufferPruningInterval: 10,\n *          bufferToKeep: 20,\n *          bufferAheadToKeep: 80,\n *          jumpGaps: true,\n *          smallGapLimit: 1.5,\n *          stableBufferTime: 12,\n *          bufferTimeAtTopQuality: 30,\n *          bufferTimeAtTopQualityLongForm: 60,\n *          longFormContentDurationThreshold: 600,\n *          wallclockTimeUpdateInterval: 50,\n *          lowLatencyEnabled: false,\n *          keepProtectionMediaKeys: false,\n *          useManifestDateHeaderTimeSource: true,\n *          useSuggestedPresentationDelay: false,\n *          useAppendWindowEnd: true,\n *          manifestUpdateRetryInterval: 100,\n *          liveCatchUpMinDrift: 0.02,\n *          liveCatchUpMaxDrift: 0,\n *          liveCatchUpPlaybackRate: 0.5,\n *          lastBitrateCachingInfo: { enabled: true, ttl: 360000 },\n *          lastMediaSettingsCachingInfo: { enabled: true, ttl: 360000 },\n *          cacheLoadThresholds: { video: 50, audio: 5 },\n *          retryIntervals: {\n *              MPD: 500,\n *              XLinkExpansion: 500,\n *              InitializationSegment: 1000,\n *              IndexSegment: 1000,\n *              MediaSegment: 1000,\n *              BitstreamSwitchingSegment: 1000,\n *              other: 1000\n *          },\n *          retryAttempts: {\n *              MPD: 3,\n *              XLinkExpansion: 1,\n *              InitializationSegment: 3,\n *              IndexSegment: 3,\n *              MediaSegment: 3,\n *              BitstreamSwitchingSegment: 3,\n *              other: 3\n *          },\n *          abr: {\n *              movingAverageMethod: Constants.MOVING_AVERAGE_SLIDING_WINDOW,\n *              ABRStrategy: Constants.ABR_STRATEGY_DYNAMIC,\n *              bandwidthSafetyFactor: 0.9,\n *              useDefaultABRRules: true,\n *              useBufferOccupancyABR: false,\n *              useDeadTimeLatency: true,\n *              limitBitrateByPortal: false,\n *              usePixelRatioInLimitBitrateByPortal: false,\n *              maxBitrate: { audio: -1, video: -1 },\n *              minBitrate: { audio: -1, video: -1 },\n *              maxRepresentationRatio: { audio: 1, video: 1 },\n *              initialBitrate: { audio: -1, video: -1 },\n *              initialRepresentationRatio: { audio: -1, video: -1 },\n *              autoSwitchBitrate: { audio: true, video: true }\n *          },\n *          cmcd: {\n *              enabled: false,\n *              sid: null,\n *              cid: null,\n *              did: null\n *          }\n *      }\n * }\n *//**\n * @typedef {Object} DebugSettings\n * @property {number} [logLevel=dashjs.Debug.LOG_LEVEL_WARNING]\n * Sets up the log level. The levels are cumulative. For example, if you set the log level\n * to dashjs.Debug.LOG_LEVEL_WARNING all warnings, errors and fatals will be logged. Possible values.\n *\n * <ul>\n * <li>dashjs.Debug.LOG_LEVEL_NONE<br/>\n * No message is written in the browser console.\n *\n * <li>dashjs.Debug.LOG_LEVEL_FATAL<br/>\n * Log fatal errors. An error is considered fatal when it causes playback to fail completely.\n *\n * <li>dashjs.Debug.LOG_LEVEL_ERROR<br/>\n * Log error messages.\n *\n * <li>dashjs.Debug.LOG_LEVEL_WARNING<br/>\n * Log warning messages.\n *\n * <li>dashjs.Debug.LOG_LEVEL_INFO<br/>\n * Log info messages.\n *\n * <li>dashjs.Debug.LOG_LEVEL_DEBUG<br/>\n * Log debug messages.\n * </ul>\n *//**\n * @typedef {Object} AbrSettings\n * @property {string} [movingAverageMethod=\"slidingWindow\"]\n * Sets the moving average method used for smoothing throughput estimates. Valid methods are\n * \"slidingWindow\" and \"ewma\". The call has no effect if an invalid method is passed.\n *\n * The sliding window moving average method computes the average throughput using the last four segments downloaded.\n * If the stream is live (as opposed to VOD), then only the last three segments are used.\n * If wide variations in throughput are detected, the number of segments can be dynamically increased to avoid oscillations.\n *\n * The exponentially weighted moving average (EWMA) method computes the average using exponential smoothing.\n * Two separate estimates are maintained, a fast one with a three-second half life and a slow one with an eight-second half life.\n * The throughput estimate at any time is the minimum of the fast and slow estimates.\n * This allows a fast reaction to a bandwidth drop and prevents oscillations on bandwidth spikes.\n * @property {string} [ABRStrategy=\"abrDynamic\"] Returns the current ABR strategy being used: \"abrDynamic\", \"abrBola\" or \"abrThroughput\".\n * @property {number} [bandwidthSafetyFactor=0.9]\n * Standard ABR throughput rules multiply the throughput by this value. It should be between 0 and 1,\n * with lower values giving less rebuffering (but also lower quality).\n * @property {boolean} [useDefaultABRRules=true] Should the default ABR rules be used, or the custom ones added.\n * @property {boolean} [useBufferOccupancyABR=false] Whether to use the BOLA abr rule.\n * @property {boolean} [useDeadTimeLatency=true]\n * If true, only the download portion will be considered part of the download bitrate\n * and latency will be regarded as static. If false, the reciprocal of the whole\n * transfer time will be used.\n * @property {boolean} [limitBitrateByPortal=false] If true, the size of the video portal will limit the max chosen video resolution.\n * @property {boolean} [usePixelRatioInLimitBitrateByPortal=false]\n * Sets whether to take into account the device's pixel ratio when defining the portal dimensions.\n * Useful on, for example, retina displays.\n * @property {module:Settings~AudioVideoSettings} [maxBitrate={audio: -1, video: -1}] The maximum bitrate that the ABR algorithms will choose. Use NaN for no limit.\n * @property {module:Settings~AudioVideoSettings} [minBitrate={audio: -1, video: -1}] The minimum bitrate that the ABR algorithms will choose. Use NaN for no limit.\n * @property {module:Settings~AudioVideoSettings} [maxRepresentationRatio={audio: 1, video: 1}]\n * When switching multi-bitrate content (auto or manual mode) this property specifies the maximum representation allowed,\n * as a proportion of the size of the representation set.\n *\n * You can set or remove this cap at anytime before or during playback. To clear this setting you set the value to 1.\n *\n * If both this and maxAllowedBitrate are defined, maxAllowedBitrate is evaluated first, then maxAllowedRepresentation,\n * i.e. the lowest value from executing these rules is used.\n *\n * This feature is typically used to reserve higher representations for playback only when connected over a fast connection.\n * @property {module:Settings~AudioVideoSettings} [initialBitrate={audio: -1, video: -1}] Explicitly set the starting bitrate for audio or video\n * @property {module:Settings~AudioVideoSettings} [initialRepresentationRatio={audio: -1, video: -1}] Explicitly set the initial representation ratio. If initalBitrate is specified, this is ignored.\n * @property {module:Settings~AudioVideoSettings} [autoSwitchBitrate={audio: true, video: true}] Indicates whether the player should enable ABR algorithms to switch the bitrate.\n *//**\n * @typedef {Object} StreamingSettings\n * @property {number} [metricsMaxListDepth=1000] Maximum list depth of metrics.\n * @property {number} [abandonLoadTimeout=10000]\n * A timeout value in seconds, which during the ABRController will block switch-up events.\n * This will only take effect after an abandoned fragment event occurs.\n * @property {number} [liveDelayFragmentCount=NaN]\n * Changing this value will lower or increase live stream latency.  The detected segment duration will be multiplied by this value\n * to define a time in seconds to delay a live stream from the live edge. Lowering this value will lower latency but may decrease\n * the player's ability to build a stable buffer.\n * @property {number} [liveDelay]\n * <p>Equivalent in seconds of setLiveDelayFragmentCount</p>\n * <p>Lowering this value will lower latency but may decrease the player's ability to build a stable buffer.</p>\n * <p>This value should be less than the manifest duration by a couple of segment durations to avoid playback issues</p>\n * <p>If set, this parameter will take precedence over setLiveDelayFragmentCount and manifest info</p>\n * @property {boolean} [scheduleWhilePaused=true]\n * Set to true if you would like dash.js to keep downloading fragments in the background\n * when the video element is paused.\n * @property {boolean} [fastSwitchEnabled=false]\n * When enabled, after an ABR up-switch in quality, instead of requesting and appending the next fragment\n * at the end of the current buffer range it is requested and appended closer to the current time\n * When enabled, The maximum time to render a higher quality is current time + (1.5 * fragment duration).\n *\n * Note, When ABR down-switch is detected, we appended the lower quality at the end of the buffer range to preserve the\n * higher quality media for as long as possible.\n *\n * If enabled, it should be noted there are a few cases when the client will not replace inside buffer range but rather\n * just append at the end.  1. When the buffer level is less than one fragment duration 2.  The client\n * is in an Abandonment State due to recent fragment abandonment event.\n *\n * Known issues:\n * 1. In IE11 with auto switching off, if a user switches to a quality they can not download in time the\n * fragment may be appended in the same range as the playhead or even in the past, in IE11 it may cause a stutter\n * or stall in playback.\n * @property {number} [bufferPruningInterval=10] The interval of pruning buffer in sconds.\n * @property {number} [bufferToKeep=20]\n * This value influences the buffer pruning logic.\n * Allows you to modify the buffer that is kept in source buffer in seconds.\n *  0|-----------bufferToPrune-----------|-----bufferToKeep-----|currentTime|\n * @property {number} [bufferAheadToKeep=80]\n * This value influences the buffer pruning logic.\n * Allows you to modify the buffer ahead of current time position that is kept in source buffer in seconds.\n * <pre>0|--------|currentTime|-----bufferAheadToKeep----|----bufferToPrune-----------|end|</pre>\n * @property {boolean} [jumpGaps=true] Sets whether player should jump small gaps (discontinuities) in the buffer.\n * @property {number} [smallGapLimit=1.8] Time in seconds for a gap to be considered small.\n * @property {number} [stableBufferTime=12]\n * The time that the internal buffer target will be set to post startup/seeks (NOT top quality).\n *\n * When the time is set higher than the default you will have to wait longer\n * to see automatic bitrate switches but will have a larger buffer which\n * will increase stability.\n * @property {number} [bufferTimeAtTopQuality=30]\n * The time that the internal buffer target will be set to once playing the top quality.\n * If there are multiple bitrates in your adaptation, and the media is playing at the highest\n * bitrate, then we try to build a larger buffer at the top quality to increase stability\n * and to maintain media quality.\n * @property {number} [bufferTimeAtTopQualityLongForm=60] The time that the internal buffer target will be set to once playing the top quality for long form content.\n * @property {number} [longFormContentDurationThreshold=600]\n * The threshold which defines if the media is considered long form content.\n * This will directly affect the buffer targets when playing back at the top quality.\n * @property {number} [wallclockTimeUpdateInterval=50] How frequently the wallclockTimeUpdated internal event is triggered (in milliseconds).\n * @property {boolean} [lowLatencyEnabled=false] Enable or disable low latency mode\n * @property {boolean} [keepProtectionMediaKeys=false]\n * Set the value for the ProtectionController and MediaKeys life cycle. If true, the\n * ProtectionController and then created MediaKeys and MediaKeySessions will be preserved during\n * the MediaPlayer lifetime.\n * @property {boolean} [useManifestDateHeaderTimeSource=true]\n * <p>Allows you to enable the use of the Date Header, if exposed with CORS, as a timing source for live edge detection. The\n * use of the date header will happen only after the other timing source that take precedence fail or are omitted as described.\n * @property {boolean} [useSuggestedPresentationDelay=false]\n * <p>Set to true if you would like to override the default live delay and honor the SuggestedPresentationDelay attribute in by the manifest.</p>\n * @property {boolean} [useAppendWindowEnd=true]\n * Specifies if the appendWindowEnd attribute of the MSE SourceBuffers should be set according to content duration from manifest.\n * @property {number} [manifestUpdateRetryInterval=100]\n * For live streams, set the interval-frequency in milliseconds at which\n * dash.js will check if the current manifest is still processed before\n * downloading the next manifest once the minimumUpdatePeriod time has\n * @property {number} [liveCatchUpMinDrift=0.02]\n * Use this method to set the minimum latency deviation allowed before activating catch-up mechanism. In low latency mode,\n * when the difference between the measured latency and the target one,\n * as an absolute number, is higher than the one sets with this method, then dash.js increases/decreases\n * playback rate until target latency is reached.\n *\n * LowLatencyMinDrift should be provided in seconds, and it uses values between 0.0 and 0.5.\n *\n * Note: Catch-up mechanism is only applied when playing low latency live streams.\n * @property {number} [liveCatchUpMaxDrift=0]\n * Use this method to set the maximum latency deviation allowed before dash.js to do a seeking to live position. In low latency mode,\n * when the difference between the measured latency and the target one,\n * as an absolute number, is higher than the one sets with this method, then dash.js does a seek to live edge position minus\n * the target live delay.\n *\n * LowLatencyMaxDriftBeforeSeeking should be provided in seconds. If 0, then seeking operations won't be used for\n * fixing latency deviations.\n *\n * Note: Catch-up mechanism is only applied when playing low latency live streams.\n * @property {number} [liveCatchUpPlaybackRate=0.5]\n * Use this method to set the maximum catch up rate, as a percentage, for low latency live streams. In low latency mode,\n * when measured latency is higher/lower than the target one,\n * dash.js increases/decreases playback rate respectively up to (+/-) the percentage defined with this method until target is reached.\n *\n * Valid values for catch up rate are in range 0-0.5 (0-50%). Set it to 0 to turn off live catch up feature.\n *\n * Note: Catch-up mechanism is only applied when playing low latency live streams.\n * @property {module:Settings~CachingInfoSettings} [lastBitrateCachingInfo={enabled: true, ttl: 360000}]\n * Set to false if you would like to disable the last known bit rate from being stored during playback and used\n * to set the initial bit rate for subsequent playback within the expiration window.\n *\n * The default expiration is one hour, defined in milliseconds. If expired, the default initial bit rate (closest to 1000 kbps) will be used\n * for that session and a new bit rate will be stored during that session.\n * @property {module:Settings~CachingInfoSettings} [lastMediaSettingsCachingInfo={enabled: true, ttl: 360000}]\n * Set to false if you would like to disable the last known lang for audio (or camera angle for video) from being stored during playback and used\n * to set the initial settings for subsequent playback within the expiration window.\n *\n * The default expiration is one hour, defined in milliseconds. If expired, the default settings will be used\n * for that session and a new settings will be stored during that session.\n * @property {module:Settings~AudioVideoSettings} [cacheLoadThresholds={video: 50, audio: 5}]\n * For a given media type, the threshold which defines if the response to a fragment\n * request is coming from browser cache or not.\n * @property {module:Settings~RequestTypeSettings} [retryIntervals] Time in milliseconds of which to reload a failed file load attempt.\n * @property {module:Settings~RequestTypeSettings} [retryAttempts] Total number of retry attempts that will occur on a file load before it fails.\n * @property {module:Settings~AbrSettings} abr Adaptive Bitrate algorithm related settings.\n * @property {module:Settings~CmcdSettings} cmcd  Settings related to Common Media Client Data reporting.\n *//**\n * @typedef {Object} CachingInfoSettings\n * @property {boolean} [enable] Enable or disable the caching feature.\n * @property {number} [ttl] Time to live. A value defined in milliseconds representing how log to cache the settings for.\n *//**\n * @typedef {Object} module:Settings~AudioVideoSettings\n * @property {number|boolean} [audio] Configuration for audio media type of tracks.\n * @property {number|boolean} [video] Configuration for video media type of tracks.\n *//**\n * @typedef {Object} RequestTypeSettings\n * @property {number} [MPD] Manifest type of requests\n * @property {number} [XLinkExpansion] XLink expansion type of requests\n * @property {number} [InitializationSegment] Request to retrieve an initialization segment\n * @property {number} [IndexSegment] Request to retrieve an index segment (SegmentBase)\n * @property {number} [MediaSegment] Request to retrieve a media segment (video/audio/image/text chunk)\n * @property {number} [BitstreamSwitchingSegment] Bitrate stream switching type of request\n * @property {number} [other] Other type of request\n *\n *//**\n * @typedef {Object} module:Settings~CmcdSettings\n * @property {boolean} [enable=false] Enable or disable the CMCD reporting.\n * @property {string} [sid] GUID identifying the current playback session. Should be in UUID format. If not specified a UUID will be automatically generated.\n * @property {string} [cid] A unique string to identify the current content. If not specified it will be a hash of the MPD url.\n * @property {string} [did=dash.js-cmcd-default-id] A unique string identifying the current device.\n *//**\n * @class\n * @ignore\n */function Settings(){var _retryIntervals,_retryAttempts;var instance=void 0;/**\n     * @const {PlayerSettings} defaultSettings\n     * @ignore\n     */var defaultSettings={debug:{logLevel:_Debug2.default.LOG_LEVEL_WARNING},streaming:{metricsMaxListDepth:1000,abandonLoadTimeout:10000,liveDelayFragmentCount:NaN,liveDelay:null,scheduleWhilePaused:true,fastSwitchEnabled:false,bufferPruningInterval:10,bufferToKeep:20,bufferAheadToKeep:80,jumpGaps:true,smallGapLimit:1.5,stableBufferTime:12,bufferTimeAtTopQuality:30,bufferTimeAtTopQualityLongForm:60,longFormContentDurationThreshold:600,wallclockTimeUpdateInterval:50,lowLatencyEnabled:false,keepProtectionMediaKeys:false,useManifestDateHeaderTimeSource:true,useSuggestedPresentationDelay:true,useAppendWindowEnd:true,manifestUpdateRetryInterval:100,liveCatchUpMinDrift:0.02,liveCatchUpMaxDrift:0,liveCatchUpPlaybackRate:0.5,lastBitrateCachingInfo:{enabled:true,ttl:360000},lastMediaSettingsCachingInfo:{enabled:true,ttl:360000},cacheLoadThresholds:{video:50,audio:5},retryIntervals:(_retryIntervals={},_defineProperty(_retryIntervals,_HTTPRequest.HTTPRequest.MPD_TYPE,500),_defineProperty(_retryIntervals,_HTTPRequest.HTTPRequest.XLINK_EXPANSION_TYPE,500),_defineProperty(_retryIntervals,_HTTPRequest.HTTPRequest.MEDIA_SEGMENT_TYPE,1000),_defineProperty(_retryIntervals,_HTTPRequest.HTTPRequest.INIT_SEGMENT_TYPE,1000),_defineProperty(_retryIntervals,_HTTPRequest.HTTPRequest.BITSTREAM_SWITCHING_SEGMENT_TYPE,1000),_defineProperty(_retryIntervals,_HTTPRequest.HTTPRequest.INDEX_SEGMENT_TYPE,1000),_defineProperty(_retryIntervals,_HTTPRequest.HTTPRequest.OTHER_TYPE,1000),_retryIntervals),retryAttempts:(_retryAttempts={},_defineProperty(_retryAttempts,_HTTPRequest.HTTPRequest.MPD_TYPE,3),_defineProperty(_retryAttempts,_HTTPRequest.HTTPRequest.XLINK_EXPANSION_TYPE,1),_defineProperty(_retryAttempts,_HTTPRequest.HTTPRequest.MEDIA_SEGMENT_TYPE,3),_defineProperty(_retryAttempts,_HTTPRequest.HTTPRequest.INIT_SEGMENT_TYPE,3),_defineProperty(_retryAttempts,_HTTPRequest.HTTPRequest.BITSTREAM_SWITCHING_SEGMENT_TYPE,3),_defineProperty(_retryAttempts,_HTTPRequest.HTTPRequest.INDEX_SEGMENT_TYPE,3),_defineProperty(_retryAttempts,_HTTPRequest.HTTPRequest.OTHER_TYPE,3),_retryAttempts),abr:{movingAverageMethod:_Constants2.default.MOVING_AVERAGE_SLIDING_WINDOW,ABRStrategy:_Constants2.default.ABR_STRATEGY_DYNAMIC,bandwidthSafetyFactor:0.9,useDefaultABRRules:true,useBufferOccupancyABR:false,useDeadTimeLatency:true,limitBitrateByPortal:false,usePixelRatioInLimitBitrateByPortal:false,maxBitrate:{audio:-1,video:-1},minBitrate:{audio:-1,video:-1},maxRepresentationRatio:{audio:1,video:1},initialBitrate:{audio:-1,video:-1},initialRepresentationRatio:{audio:-1,video:-1},autoSwitchBitrate:{audio:true,video:true}},cmcd:{enabled:false,sid:null,cid:null,did:null}}};var settings=_Utils2.default.clone(defaultSettings);//Merge in the settings. If something exists in the new config that doesn't match the schema of the default config,\n//regard it as an error and log it.\nfunction mixinSettings(source,dest,path){for(var n in source){if(source.hasOwnProperty(n)){if(dest.hasOwnProperty(n)){if(_typeof(source[n])==='object'&&source[n]!==null){mixinSettings(source[n],dest[n],path.slice()+n+'.');}else{dest[n]=_Utils2.default.clone(source[n]);}}}}}/**\n     * Return the settings object. Don't copy/store this object, you won't get updates.\n     * @func\n     * @instance\n     */function get(){return settings;}/**\n     * @func\n     * @instance\n     * @param {object} settingsObj - This should be a partial object of the Settings.Schema type. That is, fields defined should match the path (e.g.\n     * settingsObj.streaming.abr.autoSwitchBitrate.audio -> defaultSettings.streaming.abr.autoSwitchBitrate.audio). Where an element's path does\n     * not match it is ignored, and a warning is logged.\n     *\n     * Use to change the settings object. Any new values defined will overwrite the settings and anything undefined will not change.\n     * Implementers of new settings should add it in an approriate namespace to the defaultSettings object and give it a default value (that is not undefined).\n     *\n     */function update(settingsObj){if((typeof settingsObj==='undefined'?'undefined':_typeof(settingsObj))==='object'){mixinSettings(settingsObj,settings,'');}}/**\n     * Resets the settings object. Everything is set to its default value.\n     * @func\n     * @instance\n     *\n     */function reset(){settings=_Utils2.default.clone(defaultSettings);}instance={get:get,update:update,reset:reset};return instance;}Settings.__dashjs_factory_name='Settings';var factory=_FactoryMaker2.default.getSingletonFactory(Settings);exports.default=factory;\n//# sourceMappingURL=Settings.js.map\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _createClass=function(){function defineProperties(target,props){for(var i=0;i<props.length;i++){var descriptor=props[i];descriptor.enumerable=descriptor.enumerable||false;descriptor.configurable=true;if(\"value\"in descriptor)descriptor.writable=true;Object.defineProperty(target,descriptor.key,descriptor);}}return function(Constructor,protoProps,staticProps){if(protoProps)defineProperties(Constructor.prototype,protoProps);if(staticProps)defineProperties(Constructor,staticProps);return Constructor;};}();/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n *//**\n * @class\n * @ignore\n */var _DashConstants=require('../constants/DashConstants');var _DashConstants2=_interopRequireDefault(_DashConstants);function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}function _classCallCheck(instance,Constructor){if(!(instance instanceof Constructor)){throw new TypeError(\"Cannot call a class as a function\");}}var Representation=function(){function Representation(){_classCallCheck(this,Representation);this.id=null;this.index=-1;this.adaptation=null;this.segmentInfoType=null;this.initialization=null;this.codecs=null;this.codecPrivateData=null;this.segmentDuration=NaN;this.timescale=1;this.startNumber=1;this.indexRange=null;this.range=null;this.presentationTimeOffset=0;// Set the source buffer timeOffset to this\nthis.MSETimeOffset=NaN;this.segmentAvailabilityRange=null;this.availableSegmentsNumber=0;this.bandwidth=NaN;this.width=NaN;this.height=NaN;this.scanType=null;this.maxPlayoutRate=NaN;this.availabilityTimeOffset=0;this.availabilityTimeComplete=true;}_createClass(Representation,[{key:'hasInitialization',value:function hasInitialization(){return this.initialization!==null||this.range!==null;}},{key:'hasSegments',value:function hasSegments(){return this.segmentInfoType!==_DashConstants2.default.BASE_URL&&this.segmentInfoType!==_DashConstants2.default.SEGMENT_BASE&&!this.indexRange;}}]);return Representation;}();exports.default=Representation;\n//# sourceMappingURL=Representation.js.map\n","var anObject = require('../internals/an-object');\n\n// call something on iterator step with safe closing on error\nmodule.exports = function (iterator, fn, value, ENTRIES) {\n  try {\n    return ENTRIES ? fn(anObject(value)[0], value[1]) : fn(value);\n  // 7.4.6 IteratorClose(iterator, completion)\n  } catch (error) {\n    var returnMethod = iterator['return'];\n    if (returnMethod !== undefined) anObject(returnMethod.call(iterator));\n    throw error;\n  }\n};\n","var DESCRIPTORS = require('../internals/descriptors');\nvar IE8_DOM_DEFINE = require('../internals/ie8-dom-define');\nvar anObject = require('../internals/an-object');\nvar toPrimitive = require('../internals/to-primitive');\n\nvar nativeDefineProperty = Object.defineProperty;\n\n// `Object.defineProperty` method\n// https://tc39.github.io/ecma262/#sec-object.defineproperty\nexports.f = DESCRIPTORS ? nativeDefineProperty : function defineProperty(O, P, Attributes) {\n  anObject(O);\n  P = toPrimitive(P, true);\n  anObject(Attributes);\n  if (IE8_DOM_DEFINE) try {\n    return nativeDefineProperty(O, P, Attributes);\n  } catch (error) { /* empty */ }\n  if ('get' in Attributes || 'set' in Attributes) throw TypeError('Accessors not supported');\n  if ('value' in Attributes) O[P] = Attributes.value;\n  return O;\n};\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _MetricsHandlerFactory=require('../metrics/MetricsHandlerFactory');var _MetricsHandlerFactory2=_interopRequireDefault(_MetricsHandlerFactory);function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}function MetricsHandlersController(config){config=config||{};var handlers=[];var instance=void 0;var context=this.context;var eventBus=config.eventBus;var Events=config.events;var metricsHandlerFactory=(0,_MetricsHandlerFactory2.default)(context).getInstance({debug:config.debug,eventBus:config.eventBus,metricsConstants:config.metricsConstants});function handle(e){handlers.forEach(function(handler){handler.handleNewMetric(e.metric,e.value,e.mediaType);});}function initialize(metrics,reportingController){metrics.split(',').forEach(function(m,midx,ms){var handler=void 0;// there is a bug in ISO23009-1 where the metrics attribute\n// is a comma-separated list but HttpList key can contain a\n// comma enclosed by ().\nif(m.indexOf('(')!==-1&&m.indexOf(')')===-1){var nextm=ms[midx+1];if(nextm&&nextm.indexOf('(')===-1&&nextm.indexOf(')')!==-1){m+=','+nextm;// delete the next metric so forEach does not visit.\ndelete ms[midx+1];}}handler=metricsHandlerFactory.create(m,reportingController);if(handler){handlers.push(handler);}});eventBus.on(Events.METRIC_ADDED,handle,instance);eventBus.on(Events.METRIC_UPDATED,handle,instance);}function reset(){eventBus.off(Events.METRIC_ADDED,handle,instance);eventBus.off(Events.METRIC_UPDATED,handle,instance);handlers.forEach(function(handler){return handler.reset();});handlers=[];}instance={initialize:initialize,reset:reset};return instance;}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n */MetricsHandlersController.__dashjs_factory_name='MetricsHandlersController';exports.default=dashjs.FactoryMaker.getClassFactory(MetricsHandlersController);/* jshint ignore:line */\n//# sourceMappingURL=MetricsHandlersController.js.map\n","'use strict';\nvar IteratorPrototype = require('../internals/iterators-core').IteratorPrototype;\nvar create = require('../internals/object-create');\nvar createPropertyDescriptor = require('../internals/create-property-descriptor');\nvar setToStringTag = require('../internals/set-to-string-tag');\nvar Iterators = require('../internals/iterators');\n\nvar returnThis = function () { return this; };\n\nmodule.exports = function (IteratorConstructor, NAME, next) {\n  var TO_STRING_TAG = NAME + ' Iterator';\n  IteratorConstructor.prototype = create(IteratorPrototype, { next: createPropertyDescriptor(1, next) });\n  setToStringTag(IteratorConstructor, TO_STRING_TAG, false, true);\n  Iterators[TO_STRING_TAG] = returnThis;\n  return IteratorConstructor;\n};\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});function _classCallCheck(instance,Constructor){if(!(instance instanceof Constructor)){throw new TypeError(\"Cannot call a class as a function\");}}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n *//**\n * @class\n * @ignore\n */var Period=function Period(){_classCallCheck(this,Period);this.id=null;this.index=-1;this.duration=NaN;this.start=NaN;this.mpd=null;};Period.DEFAULT_ID='defaultId';exports.default=Period;\n//# sourceMappingURL=Period.js.map\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _FactoryMaker=require('../../core/FactoryMaker');var _FactoryMaker2=_interopRequireDefault(_FactoryMaker);var _Constants=require('../../streaming/constants/Constants');var _Constants2=_interopRequireDefault(_Constants);var _SegmentsUtils=require('./SegmentsUtils');function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}function TimelineSegmentsGetter(config,isDynamic){config=config||{};var timelineConverter=config.timelineConverter;var instance=void 0;function checkConfig(){if(!timelineConverter||!timelineConverter.hasOwnProperty('calcMediaTimeFromPresentationTime')||!timelineConverter.hasOwnProperty('calcSegmentAvailabilityRange')){throw new Error(_Constants2.default.MISSING_CONFIG_ERROR);}}function iterateSegments(representation,iterFunc){var base=representation.adaptation.period.mpd.manifest.Period_asArray[representation.adaptation.period.index].AdaptationSet_asArray[representation.adaptation.index].Representation_asArray[representation.index].SegmentTemplate||representation.adaptation.period.mpd.manifest.Period_asArray[representation.adaptation.period.index].AdaptationSet_asArray[representation.adaptation.index].Representation_asArray[representation.index].SegmentList;var timeline=base.SegmentTimeline;var list=base.SegmentURL_asArray;var time=0;var scaledTime=0;var availabilityIdx=-1;var fragments=void 0,frag=void 0,i=void 0,len=void 0,j=void 0,repeat=void 0,repeatEndTime=void 0,nextFrag=void 0,fTimescale=void 0;fTimescale=representation.timescale;fragments=timeline.S_asArray;var breakIterator=false;for(i=0,len=fragments.length;i<len&&!breakIterator;i++){frag=fragments[i];repeat=0;if(frag.hasOwnProperty('r')){repeat=frag.r;}// For a repeated S element, t belongs only to the first segment\nif(frag.hasOwnProperty('t')){time=frag.t;scaledTime=time/fTimescale;}// This is a special case: \"A negative value of the @r attribute of the S element indicates that the duration indicated in @d attribute repeats until the start of the next S element, the end of the Period or until the\n// next MPD update.\"\nif(repeat<0){nextFrag=fragments[i+1];if(nextFrag&&nextFrag.hasOwnProperty('t')){repeatEndTime=nextFrag.t/fTimescale;}else{var availabilityEnd=representation.segmentAvailabilityRange?representation.segmentAvailabilityRange.end:timelineConverter.calcSegmentAvailabilityRange(representation,isDynamic).end;repeatEndTime=timelineConverter.calcMediaTimeFromPresentationTime(availabilityEnd,representation);representation.segmentDuration=frag.d/fTimescale;}repeat=Math.ceil((repeatEndTime-scaledTime)/(frag.d/fTimescale))-1;}for(j=0;j<=repeat&&!breakIterator;j++){availabilityIdx++;breakIterator=iterFunc(time,scaledTime,base,list,frag,fTimescale,availabilityIdx,i);if(breakIterator){representation.segmentDuration=frag.d/fTimescale;// check if there is at least one more segment\nif(j<repeat-1||i<len-1){availabilityIdx++;}}time+=frag.d;scaledTime=time/fTimescale;}}representation.availableSegmentsNumber=availabilityIdx;}function getSegmentByIndex(representation,index,lastSegmentTime){checkConfig();if(!representation){return null;}var segment=null;var found=false;iterateSegments(representation,function(time,scaledTime,base,list,frag,fTimescale,availabilityIdx,i){if(found||lastSegmentTime<0){var media=base.media;var mediaRange=frag.mediaRange;if(list){media=list[i].media||'';mediaRange=list[i].mediaRange;}segment=(0,_SegmentsUtils.getTimeBasedSegment)(timelineConverter,isDynamic,representation,time,frag.d,fTimescale,media,mediaRange,availabilityIdx,frag.tManifest);return true;}else if(scaledTime>=lastSegmentTime-frag.d*0.5/fTimescale){// same logic, if deviation is\n// 50% of segment duration, segment is found if scaledTime is greater than or equal to (startTime of previous segment - half of the previous segment duration)\nfound=true;}return false;});return segment;}function getSegmentByTime(representation,requestedTime){checkConfig();if(!representation){return null;}if(requestedTime===undefined){requestedTime=null;}var segment=null;var requiredMediaTime=timelineConverter.calcMediaTimeFromPresentationTime(requestedTime,representation);iterateSegments(representation,function(time,scaledTime,base,list,frag,fTimescale,availabilityIdx,i){// In some cases when requiredMediaTime = actual end time of the last segment\n// it is possible that this time a bit exceeds the declared end time of the last segment.\n// in this case we still need to include the last segment in the segment list.\nif(requiredMediaTime<scaledTime+frag.d/fTimescale){var media=base.media;var mediaRange=frag.mediaRange;if(list){media=list[i].media||'';mediaRange=list[i].mediaRange;}segment=(0,_SegmentsUtils.getTimeBasedSegment)(timelineConverter,isDynamic,representation,time,frag.d,fTimescale,media,mediaRange,availabilityIdx,frag.tManifest);return true;}return false;});return segment;}instance={getSegmentByIndex:getSegmentByIndex,getSegmentByTime:getSegmentByTime};return instance;}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n */TimelineSegmentsGetter.__dashjs_factory_name='TimelineSegmentsGetter';var factory=_FactoryMaker2.default.getClassFactory(TimelineSegmentsGetter);exports.default=factory;\n//# sourceMappingURL=TimelineSegmentsGetter.js.map\n","\"use strict\";Object.defineProperty(exports,\"__esModule\",{value:true});function _classCallCheck(instance,Constructor){if(!(instance instanceof Constructor)){throw new TypeError(\"Cannot call a class as a function\");}}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n *//**\n * @class\n * @ignore\n */var StreamInfo=function StreamInfo(){_classCallCheck(this,StreamInfo);this.id=null;this.index=null;this.start=NaN;this.duration=NaN;this.manifestInfo=null;this.isLast=true;};exports.default=StreamInfo;\n//# sourceMappingURL=StreamInfo.js.map\n","'use strict';\nvar $ = require('../internals/export');\nvar global = require('../internals/global');\nvar getBuiltIn = require('../internals/get-built-in');\nvar IS_PURE = require('../internals/is-pure');\nvar DESCRIPTORS = require('../internals/descriptors');\nvar NATIVE_SYMBOL = require('../internals/native-symbol');\nvar USE_SYMBOL_AS_UID = require('../internals/use-symbol-as-uid');\nvar fails = require('../internals/fails');\nvar has = require('../internals/has');\nvar isArray = require('../internals/is-array');\nvar isObject = require('../internals/is-object');\nvar anObject = require('../internals/an-object');\nvar toObject = require('../internals/to-object');\nvar toIndexedObject = require('../internals/to-indexed-object');\nvar toPrimitive = require('../internals/to-primitive');\nvar createPropertyDescriptor = require('../internals/create-property-descriptor');\nvar nativeObjectCreate = require('../internals/object-create');\nvar objectKeys = require('../internals/object-keys');\nvar getOwnPropertyNamesModule = require('../internals/object-get-own-property-names');\nvar getOwnPropertyNamesExternal = require('../internals/object-get-own-property-names-external');\nvar getOwnPropertySymbolsModule = require('../internals/object-get-own-property-symbols');\nvar getOwnPropertyDescriptorModule = require('../internals/object-get-own-property-descriptor');\nvar definePropertyModule = require('../internals/object-define-property');\nvar propertyIsEnumerableModule = require('../internals/object-property-is-enumerable');\nvar createNonEnumerableProperty = require('../internals/create-non-enumerable-property');\nvar redefine = require('../internals/redefine');\nvar shared = require('../internals/shared');\nvar sharedKey = require('../internals/shared-key');\nvar hiddenKeys = require('../internals/hidden-keys');\nvar uid = require('../internals/uid');\nvar wellKnownSymbol = require('../internals/well-known-symbol');\nvar wrappedWellKnownSymbolModule = require('../internals/well-known-symbol-wrapped');\nvar defineWellKnownSymbol = require('../internals/define-well-known-symbol');\nvar setToStringTag = require('../internals/set-to-string-tag');\nvar InternalStateModule = require('../internals/internal-state');\nvar $forEach = require('../internals/array-iteration').forEach;\n\nvar HIDDEN = sharedKey('hidden');\nvar SYMBOL = 'Symbol';\nvar PROTOTYPE = 'prototype';\nvar TO_PRIMITIVE = wellKnownSymbol('toPrimitive');\nvar setInternalState = InternalStateModule.set;\nvar getInternalState = InternalStateModule.getterFor(SYMBOL);\nvar ObjectPrototype = Object[PROTOTYPE];\nvar $Symbol = global.Symbol;\nvar $stringify = getBuiltIn('JSON', 'stringify');\nvar nativeGetOwnPropertyDescriptor = getOwnPropertyDescriptorModule.f;\nvar nativeDefineProperty = definePropertyModule.f;\nvar nativeGetOwnPropertyNames = getOwnPropertyNamesExternal.f;\nvar nativePropertyIsEnumerable = propertyIsEnumerableModule.f;\nvar AllSymbols = shared('symbols');\nvar ObjectPrototypeSymbols = shared('op-symbols');\nvar StringToSymbolRegistry = shared('string-to-symbol-registry');\nvar SymbolToStringRegistry = shared('symbol-to-string-registry');\nvar WellKnownSymbolsStore = shared('wks');\nvar QObject = global.QObject;\n// Don't use setters in Qt Script, https://github.com/zloirock/core-js/issues/173\nvar USE_SETTER = !QObject || !QObject[PROTOTYPE] || !QObject[PROTOTYPE].findChild;\n\n// fallback for old Android, https://code.google.com/p/v8/issues/detail?id=687\nvar setSymbolDescriptor = DESCRIPTORS && fails(function () {\n  return nativeObjectCreate(nativeDefineProperty({}, 'a', {\n    get: function () { return nativeDefineProperty(this, 'a', { value: 7 }).a; }\n  })).a != 7;\n}) ? function (O, P, Attributes) {\n  var ObjectPrototypeDescriptor = nativeGetOwnPropertyDescriptor(ObjectPrototype, P);\n  if (ObjectPrototypeDescriptor) delete ObjectPrototype[P];\n  nativeDefineProperty(O, P, Attributes);\n  if (ObjectPrototypeDescriptor && O !== ObjectPrototype) {\n    nativeDefineProperty(ObjectPrototype, P, ObjectPrototypeDescriptor);\n  }\n} : nativeDefineProperty;\n\nvar wrap = function (tag, description) {\n  var symbol = AllSymbols[tag] = nativeObjectCreate($Symbol[PROTOTYPE]);\n  setInternalState(symbol, {\n    type: SYMBOL,\n    tag: tag,\n    description: description\n  });\n  if (!DESCRIPTORS) symbol.description = description;\n  return symbol;\n};\n\nvar isSymbol = USE_SYMBOL_AS_UID ? function (it) {\n  return typeof it == 'symbol';\n} : function (it) {\n  return Object(it) instanceof $Symbol;\n};\n\nvar $defineProperty = function defineProperty(O, P, Attributes) {\n  if (O === ObjectPrototype) $defineProperty(ObjectPrototypeSymbols, P, Attributes);\n  anObject(O);\n  var key = toPrimitive(P, true);\n  anObject(Attributes);\n  if (has(AllSymbols, key)) {\n    if (!Attributes.enumerable) {\n      if (!has(O, HIDDEN)) nativeDefineProperty(O, HIDDEN, createPropertyDescriptor(1, {}));\n      O[HIDDEN][key] = true;\n    } else {\n      if (has(O, HIDDEN) && O[HIDDEN][key]) O[HIDDEN][key] = false;\n      Attributes = nativeObjectCreate(Attributes, { enumerable: createPropertyDescriptor(0, false) });\n    } return setSymbolDescriptor(O, key, Attributes);\n  } return nativeDefineProperty(O, key, Attributes);\n};\n\nvar $defineProperties = function defineProperties(O, Properties) {\n  anObject(O);\n  var properties = toIndexedObject(Properties);\n  var keys = objectKeys(properties).concat($getOwnPropertySymbols(properties));\n  $forEach(keys, function (key) {\n    if (!DESCRIPTORS || $propertyIsEnumerable.call(properties, key)) $defineProperty(O, key, properties[key]);\n  });\n  return O;\n};\n\nvar $create = function create(O, Properties) {\n  return Properties === undefined ? nativeObjectCreate(O) : $defineProperties(nativeObjectCreate(O), Properties);\n};\n\nvar $propertyIsEnumerable = function propertyIsEnumerable(V) {\n  var P = toPrimitive(V, true);\n  var enumerable = nativePropertyIsEnumerable.call(this, P);\n  if (this === ObjectPrototype && has(AllSymbols, P) && !has(ObjectPrototypeSymbols, P)) return false;\n  return enumerable || !has(this, P) || !has(AllSymbols, P) || has(this, HIDDEN) && this[HIDDEN][P] ? enumerable : true;\n};\n\nvar $getOwnPropertyDescriptor = function getOwnPropertyDescriptor(O, P) {\n  var it = toIndexedObject(O);\n  var key = toPrimitive(P, true);\n  if (it === ObjectPrototype && has(AllSymbols, key) && !has(ObjectPrototypeSymbols, key)) return;\n  var descriptor = nativeGetOwnPropertyDescriptor(it, key);\n  if (descriptor && has(AllSymbols, key) && !(has(it, HIDDEN) && it[HIDDEN][key])) {\n    descriptor.enumerable = true;\n  }\n  return descriptor;\n};\n\nvar $getOwnPropertyNames = function getOwnPropertyNames(O) {\n  var names = nativeGetOwnPropertyNames(toIndexedObject(O));\n  var result = [];\n  $forEach(names, function (key) {\n    if (!has(AllSymbols, key) && !has(hiddenKeys, key)) result.push(key);\n  });\n  return result;\n};\n\nvar $getOwnPropertySymbols = function getOwnPropertySymbols(O) {\n  var IS_OBJECT_PROTOTYPE = O === ObjectPrototype;\n  var names = nativeGetOwnPropertyNames(IS_OBJECT_PROTOTYPE ? ObjectPrototypeSymbols : toIndexedObject(O));\n  var result = [];\n  $forEach(names, function (key) {\n    if (has(AllSymbols, key) && (!IS_OBJECT_PROTOTYPE || has(ObjectPrototype, key))) {\n      result.push(AllSymbols[key]);\n    }\n  });\n  return result;\n};\n\n// `Symbol` constructor\n// https://tc39.github.io/ecma262/#sec-symbol-constructor\nif (!NATIVE_SYMBOL) {\n  $Symbol = function Symbol() {\n    if (this instanceof $Symbol) throw TypeError('Symbol is not a constructor');\n    var description = !arguments.length || arguments[0] === undefined ? undefined : String(arguments[0]);\n    var tag = uid(description);\n    var setter = function (value) {\n      if (this === ObjectPrototype) setter.call(ObjectPrototypeSymbols, value);\n      if (has(this, HIDDEN) && has(this[HIDDEN], tag)) this[HIDDEN][tag] = false;\n      setSymbolDescriptor(this, tag, createPropertyDescriptor(1, value));\n    };\n    if (DESCRIPTORS && USE_SETTER) setSymbolDescriptor(ObjectPrototype, tag, { configurable: true, set: setter });\n    return wrap(tag, description);\n  };\n\n  redefine($Symbol[PROTOTYPE], 'toString', function toString() {\n    return getInternalState(this).tag;\n  });\n\n  redefine($Symbol, 'withoutSetter', function (description) {\n    return wrap(uid(description), description);\n  });\n\n  propertyIsEnumerableModule.f = $propertyIsEnumerable;\n  definePropertyModule.f = $defineProperty;\n  getOwnPropertyDescriptorModule.f = $getOwnPropertyDescriptor;\n  getOwnPropertyNamesModule.f = getOwnPropertyNamesExternal.f = $getOwnPropertyNames;\n  getOwnPropertySymbolsModule.f = $getOwnPropertySymbols;\n\n  wrappedWellKnownSymbolModule.f = function (name) {\n    return wrap(wellKnownSymbol(name), name);\n  };\n\n  if (DESCRIPTORS) {\n    // https://github.com/tc39/proposal-Symbol-description\n    nativeDefineProperty($Symbol[PROTOTYPE], 'description', {\n      configurable: true,\n      get: function description() {\n        return getInternalState(this).description;\n      }\n    });\n    if (!IS_PURE) {\n      redefine(ObjectPrototype, 'propertyIsEnumerable', $propertyIsEnumerable, { unsafe: true });\n    }\n  }\n}\n\n$({ global: true, wrap: true, forced: !NATIVE_SYMBOL, sham: !NATIVE_SYMBOL }, {\n  Symbol: $Symbol\n});\n\n$forEach(objectKeys(WellKnownSymbolsStore), function (name) {\n  defineWellKnownSymbol(name);\n});\n\n$({ target: SYMBOL, stat: true, forced: !NATIVE_SYMBOL }, {\n  // `Symbol.for` method\n  // https://tc39.github.io/ecma262/#sec-symbol.for\n  'for': function (key) {\n    var string = String(key);\n    if (has(StringToSymbolRegistry, string)) return StringToSymbolRegistry[string];\n    var symbol = $Symbol(string);\n    StringToSymbolRegistry[string] = symbol;\n    SymbolToStringRegistry[symbol] = string;\n    return symbol;\n  },\n  // `Symbol.keyFor` method\n  // https://tc39.github.io/ecma262/#sec-symbol.keyfor\n  keyFor: function keyFor(sym) {\n    if (!isSymbol(sym)) throw TypeError(sym + ' is not a symbol');\n    if (has(SymbolToStringRegistry, sym)) return SymbolToStringRegistry[sym];\n  },\n  useSetter: function () { USE_SETTER = true; },\n  useSimple: function () { USE_SETTER = false; }\n});\n\n$({ target: 'Object', stat: true, forced: !NATIVE_SYMBOL, sham: !DESCRIPTORS }, {\n  // `Object.create` method\n  // https://tc39.github.io/ecma262/#sec-object.create\n  create: $create,\n  // `Object.defineProperty` method\n  // https://tc39.github.io/ecma262/#sec-object.defineproperty\n  defineProperty: $defineProperty,\n  // `Object.defineProperties` method\n  // https://tc39.github.io/ecma262/#sec-object.defineproperties\n  defineProperties: $defineProperties,\n  // `Object.getOwnPropertyDescriptor` method\n  // https://tc39.github.io/ecma262/#sec-object.getownpropertydescriptors\n  getOwnPropertyDescriptor: $getOwnPropertyDescriptor\n});\n\n$({ target: 'Object', stat: true, forced: !NATIVE_SYMBOL }, {\n  // `Object.getOwnPropertyNames` method\n  // https://tc39.github.io/ecma262/#sec-object.getownpropertynames\n  getOwnPropertyNames: $getOwnPropertyNames,\n  // `Object.getOwnPropertySymbols` method\n  // https://tc39.github.io/ecma262/#sec-object.getownpropertysymbols\n  getOwnPropertySymbols: $getOwnPropertySymbols\n});\n\n// Chrome 38 and 39 `Object.getOwnPropertySymbols` fails on primitives\n// https://bugs.chromium.org/p/v8/issues/detail?id=3443\n$({ target: 'Object', stat: true, forced: fails(function () { getOwnPropertySymbolsModule.f(1); }) }, {\n  getOwnPropertySymbols: function getOwnPropertySymbols(it) {\n    return getOwnPropertySymbolsModule.f(toObject(it));\n  }\n});\n\n// `JSON.stringify` method behavior with symbols\n// https://tc39.github.io/ecma262/#sec-json.stringify\nif ($stringify) {\n  var FORCED_JSON_STRINGIFY = !NATIVE_SYMBOL || fails(function () {\n    var symbol = $Symbol();\n    // MS Edge converts symbol values to JSON as {}\n    return $stringify([symbol]) != '[null]'\n      // WebKit converts symbol values to JSON as null\n      || $stringify({ a: symbol }) != '{}'\n      // V8 throws on boxed symbols\n      || $stringify(Object(symbol)) != '{}';\n  });\n\n  $({ target: 'JSON', stat: true, forced: FORCED_JSON_STRINGIFY }, {\n    // eslint-disable-next-line no-unused-vars\n    stringify: function stringify(it, replacer, space) {\n      var args = [it];\n      var index = 1;\n      var $replacer;\n      while (arguments.length > index) args.push(arguments[index++]);\n      $replacer = replacer;\n      if (!isObject(replacer) && it === undefined || isSymbol(it)) return; // IE8 returns string on undefined\n      if (!isArray(replacer)) replacer = function (key, value) {\n        if (typeof $replacer == 'function') value = $replacer.call(this, key, value);\n        if (!isSymbol(value)) return value;\n      };\n      args[1] = replacer;\n      return $stringify.apply(null, args);\n    }\n  });\n}\n\n// `Symbol.prototype[@@toPrimitive]` method\n// https://tc39.github.io/ecma262/#sec-symbol.prototype-@@toprimitive\nif (!$Symbol[PROTOTYPE][TO_PRIMITIVE]) {\n  createNonEnumerableProperty($Symbol[PROTOTYPE], TO_PRIMITIVE, $Symbol[PROTOTYPE].valueOf);\n}\n// `Symbol.prototype[@@toStringTag]` property\n// https://tc39.github.io/ecma262/#sec-symbol.prototype-@@tostringtag\nsetToStringTag($Symbol, SYMBOL);\n\nhiddenKeys[HIDDEN] = true;\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _HandlerHelpers=require('../../utils/HandlerHelpers');var _HandlerHelpers2=_interopRequireDefault(_HandlerHelpers);function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}function HttpListHandler(config){config=config||{};var instance=void 0,reportingController=void 0,n=void 0,type=void 0,name=void 0,interval=void 0;var storedVos=[];var handlerHelpers=(0,_HandlerHelpers2.default)(this.context).getInstance();var metricsConstants=config.metricsConstants;function intervalCallback(){var vos=storedVos;if(vos.length){if(reportingController){reportingController.report(name,vos);}}storedVos=[];}function initialize(basename,rc,n_ms,requestType){if(rc){// this will throw if n is invalid, to be\n// caught by the initialize caller.\nn=handlerHelpers.validateN(n_ms);reportingController=rc;if(requestType&&requestType.length){type=requestType;}name=handlerHelpers.reconstructFullMetricName(basename,n_ms,requestType);interval=setInterval(intervalCallback,n);}}function reset(){clearInterval(interval);interval=null;n=null;type=null;storedVos=[];reportingController=null;}function handleNewMetric(metric,vo){if(metric===metricsConstants.HTTP_REQUEST){if(!type||type===vo.type){storedVos.push(vo);}}}instance={initialize:initialize,reset:reset,handleNewMetric:handleNewMetric};return instance;}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n */HttpListHandler.__dashjs_factory_name='HttpListHandler';exports.default=dashjs.FactoryMaker.getClassFactory(HttpListHandler);/* jshint ignore:line */\n//# sourceMappingURL=HttpListHandler.js.map\n","function _extends() {\n  module.exports = _extends = Object.assign || function (target) {\n    for (var i = 1; i < arguments.length; i++) {\n      var source = arguments[i];\n\n      for (var key in source) {\n        if (Object.prototype.hasOwnProperty.call(source, key)) {\n          target[key] = source[key];\n        }\n      }\n    }\n\n    return target;\n  };\n\n  return _extends.apply(this, arguments);\n}\n\nmodule.exports = _extends;","var $ = require('../internals/export');\nvar from = require('../internals/array-from');\nvar checkCorrectnessOfIteration = require('../internals/check-correctness-of-iteration');\n\nvar INCORRECT_ITERATION = !checkCorrectnessOfIteration(function (iterable) {\n  Array.from(iterable);\n});\n\n// `Array.from` method\n// https://tc39.github.io/ecma262/#sec-array.from\n$({ target: 'Array', stat: true, forced: INCORRECT_ITERATION }, {\n  from: from\n});\n","'use strict';\nvar fails = require('../internals/fails');\n\nmodule.exports = function (METHOD_NAME, argument) {\n  var method = [][METHOD_NAME];\n  return !!method && fails(function () {\n    // eslint-disable-next-line no-useless-call,no-throw-literal\n    method.call(null, argument || function () { throw 1; }, 1);\n  });\n};\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});function _classCallCheck(instance,Constructor){if(!(instance instanceof Constructor)){throw new TypeError(\"Cannot call a class as a function\");}}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n *//**\n * @class\n * @ignore\n */var UTCTiming=function UTCTiming(){_classCallCheck(this,UTCTiming);// UTCTiming is a DescriptorType and doesn't have any additional fields\nthis.schemeIdUri='';this.value='';};exports.default=UTCTiming;\n//# sourceMappingURL=UTCTiming.js.map\n","var ceil = Math.ceil;\nvar floor = Math.floor;\n\n// `ToInteger` abstract operation\n// https://tc39.github.io/ecma262/#sec-tointeger\nmodule.exports = function (argument) {\n  return isNaN(argument = +argument) ? 0 : (argument > 0 ? floor : ceil)(argument);\n};\n","var setPrototypeOf = require(\"./setPrototypeOf.js\");\n\nfunction _inherits(subClass, superClass) {\n  if (typeof superClass !== \"function\" && superClass !== null) {\n    throw new TypeError(\"Super expression must either be null or a function\");\n  }\n\n  subClass.prototype = Object.create(superClass && superClass.prototype, {\n    constructor: {\n      value: subClass,\n      writable: true,\n      configurable: true\n    }\n  });\n  if (superClass) setPrototypeOf(subClass, superClass);\n}\n\nmodule.exports = _inherits;\nmodule.exports[\"default\"] = module.exports, module.exports.__esModule = true;","'use strict';\nvar $ = require('../internals/export');\nvar IS_PURE = require('../internals/is-pure');\nvar NativePromise = require('../internals/native-promise-constructor');\nvar fails = require('../internals/fails');\nvar getBuiltIn = require('../internals/get-built-in');\nvar speciesConstructor = require('../internals/species-constructor');\nvar promiseResolve = require('../internals/promise-resolve');\nvar redefine = require('../internals/redefine');\n\n// Safari bug https://bugs.webkit.org/show_bug.cgi?id=200829\nvar NON_GENERIC = !!NativePromise && fails(function () {\n  NativePromise.prototype['finally'].call({ then: function () { /* empty */ } }, function () { /* empty */ });\n});\n\n// `Promise.prototype.finally` method\n// https://tc39.github.io/ecma262/#sec-promise.prototype.finally\n$({ target: 'Promise', proto: true, real: true, forced: NON_GENERIC }, {\n  'finally': function (onFinally) {\n    var C = speciesConstructor(this, getBuiltIn('Promise'));\n    var isFunction = typeof onFinally == 'function';\n    return this.then(\n      isFunction ? function (x) {\n        return promiseResolve(C, onFinally()).then(function () { return x; });\n      } : onFinally,\n      isFunction ? function (e) {\n        return promiseResolve(C, onFinally()).then(function () { throw e; });\n      } : onFinally\n    );\n  }\n});\n\n// patch native Promise.prototype for native async functions\nif (!IS_PURE && typeof NativePromise == 'function' && !NativePromise.prototype['finally']) {\n  redefine(NativePromise.prototype, 'finally', getBuiltIn('Promise').prototype['finally']);\n}\n","'use strict';\nvar DESCRIPTORS = require('../internals/descriptors');\nvar global = require('../internals/global');\nvar isForced = require('../internals/is-forced');\nvar redefine = require('../internals/redefine');\nvar has = require('../internals/has');\nvar classof = require('../internals/classof-raw');\nvar inheritIfRequired = require('../internals/inherit-if-required');\nvar toPrimitive = require('../internals/to-primitive');\nvar fails = require('../internals/fails');\nvar create = require('../internals/object-create');\nvar getOwnPropertyNames = require('../internals/object-get-own-property-names').f;\nvar getOwnPropertyDescriptor = require('../internals/object-get-own-property-descriptor').f;\nvar defineProperty = require('../internals/object-define-property').f;\nvar trim = require('../internals/string-trim').trim;\n\nvar NUMBER = 'Number';\nvar NativeNumber = global[NUMBER];\nvar NumberPrototype = NativeNumber.prototype;\n\n// Opera ~12 has broken Object#toString\nvar BROKEN_CLASSOF = classof(create(NumberPrototype)) == NUMBER;\n\n// `ToNumber` abstract operation\n// https://tc39.github.io/ecma262/#sec-tonumber\nvar toNumber = function (argument) {\n  var it = toPrimitive(argument, false);\n  var first, third, radix, maxCode, digits, length, index, code;\n  if (typeof it == 'string' && it.length > 2) {\n    it = trim(it);\n    first = it.charCodeAt(0);\n    if (first === 43 || first === 45) {\n      third = it.charCodeAt(2);\n      if (third === 88 || third === 120) return NaN; // Number('+0x1') should be NaN, old V8 fix\n    } else if (first === 48) {\n      switch (it.charCodeAt(1)) {\n        case 66: case 98: radix = 2; maxCode = 49; break; // fast equal of /^0b[01]+$/i\n        case 79: case 111: radix = 8; maxCode = 55; break; // fast equal of /^0o[0-7]+$/i\n        default: return +it;\n      }\n      digits = it.slice(2);\n      length = digits.length;\n      for (index = 0; index < length; index++) {\n        code = digits.charCodeAt(index);\n        // parseInt parses a string to a first unavailable symbol\n        // but ToNumber should return NaN if a string contains unavailable symbols\n        if (code < 48 || code > maxCode) return NaN;\n      } return parseInt(digits, radix);\n    }\n  } return +it;\n};\n\n// `Number` constructor\n// https://tc39.github.io/ecma262/#sec-number-constructor\nif (isForced(NUMBER, !NativeNumber(' 0o1') || !NativeNumber('0b1') || NativeNumber('+0x1'))) {\n  var NumberWrapper = function Number(value) {\n    var it = arguments.length < 1 ? 0 : value;\n    var dummy = this;\n    return dummy instanceof NumberWrapper\n      // check on 1..constructor(foo) case\n      && (BROKEN_CLASSOF ? fails(function () { NumberPrototype.valueOf.call(dummy); }) : classof(dummy) != NUMBER)\n        ? inheritIfRequired(new NativeNumber(toNumber(it)), dummy, NumberWrapper) : toNumber(it);\n  };\n  for (var keys = DESCRIPTORS ? getOwnPropertyNames(NativeNumber) : (\n    // ES3:\n    'MAX_VALUE,MIN_VALUE,NaN,NEGATIVE_INFINITY,POSITIVE_INFINITY,' +\n    // ES2015 (in case, if modules with ES2015 Number statics required before):\n    'EPSILON,isFinite,isInteger,isNaN,isSafeInteger,MAX_SAFE_INTEGER,' +\n    'MIN_SAFE_INTEGER,parseFloat,parseInt,isInteger'\n  ).split(','), j = 0, key; keys.length > j; j++) {\n    if (has(NativeNumber, key = keys[j]) && !has(NumberWrapper, key)) {\n      defineProperty(NumberWrapper, key, getOwnPropertyDescriptor(NativeNumber, key));\n    }\n  }\n  NumberWrapper.prototype = NumberPrototype;\n  NumberPrototype.constructor = NumberWrapper;\n  redefine(global, NUMBER, NumberWrapper);\n}\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _FactoryMaker=require('../../../core/FactoryMaker');var _FactoryMaker2=_interopRequireDefault(_FactoryMaker);var _SwitchRequest=require('../SwitchRequest');var _SwitchRequest2=_interopRequireDefault(_SwitchRequest);var _Debug=require('../../../core/Debug');var _Debug2=_interopRequireDefault(_Debug);function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}function DroppedFramesRule(){var context=this.context;var instance=void 0,logger=void 0;var DROPPED_PERCENTAGE_FORBID=0.15;var GOOD_SAMPLE_SIZE=375;//Don't apply the rule until this many frames have been rendered(and counted under those indices).\nfunction setup(){logger=(0,_Debug2.default)(context).getInstance().getLogger(instance);}function getMaxIndex(rulesContext){var switchRequest=(0,_SwitchRequest2.default)(context).create();if(!rulesContext||!rulesContext.hasOwnProperty('getDroppedFramesHistory')){return switchRequest;}var droppedFramesHistory=rulesContext.getDroppedFramesHistory();if(droppedFramesHistory){var dfh=droppedFramesHistory.getFrameHistory();var droppedFrames=0;var totalFrames=0;var maxIndex=_SwitchRequest2.default.NO_CHANGE;for(var i=1;i<dfh.length;i++){//No point in measuring dropped frames for the zeroeth index.\nif(dfh[i]){droppedFrames=dfh[i].droppedVideoFrames;totalFrames=dfh[i].totalVideoFrames;if(totalFrames>GOOD_SAMPLE_SIZE&&droppedFrames/totalFrames>DROPPED_PERCENTAGE_FORBID){maxIndex=i-1;logger.debug('index: '+maxIndex+' Dropped Frames: '+droppedFrames+' Total Frames: '+totalFrames);break;}}}return(0,_SwitchRequest2.default)(context).create(maxIndex,{droppedFrames:droppedFrames});}return switchRequest;}instance={getMaxIndex:getMaxIndex};setup();return instance;}DroppedFramesRule.__dashjs_factory_name='DroppedFramesRule';exports.default=_FactoryMaker2.default.getClassFactory(DroppedFramesRule);\n//# sourceMappingURL=DroppedFramesRule.js.map\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _EventBus=require('../../core/EventBus');var _EventBus2=_interopRequireDefault(_EventBus);var _Events=require('../../core/events/Events');var _Events2=_interopRequireDefault(_Events);var _FactoryMaker=require('../../core/FactoryMaker');var _FactoryMaker2=_interopRequireDefault(_FactoryMaker);function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}function TimelineConverter(){var context=this.context;var eventBus=(0,_EventBus2.default)(context).getInstance();var instance=void 0,clientServerTimeShift=void 0,isClientServerTimeSyncCompleted=void 0,expectedLiveEdge=void 0;function initialize(){resetInitialSettings();eventBus.on(_Events2.default.TIME_SYNCHRONIZATION_COMPLETED,onTimeSyncComplete,this);}function isTimeSyncCompleted(){return isClientServerTimeSyncCompleted;}function setTimeSyncCompleted(value){isClientServerTimeSyncCompleted=value;}function getClientTimeOffset(){return clientServerTimeShift;}function setClientTimeOffset(value){clientServerTimeShift=value;}function getExpectedLiveEdge(){return expectedLiveEdge;}function setExpectedLiveEdge(value){expectedLiveEdge=value;}function calcAvailabilityTimeFromPresentationTime(presentationTime,mpd,isDynamic,calculateEnd){var availabilityTime=NaN;if(calculateEnd){//@timeShiftBufferDepth specifies the duration of the time shifting buffer that is guaranteed\n// to be available for a Media Presentation with type 'dynamic'.\n// When not present, the value is infinite.\nif(isDynamic&&mpd.timeShiftBufferDepth!=Number.POSITIVE_INFINITY){availabilityTime=new Date(mpd.availabilityStartTime.getTime()+(presentationTime+mpd.timeShiftBufferDepth)*1000);}else{availabilityTime=mpd.availabilityEndTime;}}else{if(isDynamic){availabilityTime=new Date(mpd.availabilityStartTime.getTime()+(presentationTime-clientServerTimeShift)*1000);}else{// in static mpd, all segments are available at the same time\navailabilityTime=mpd.availabilityStartTime;}}return availabilityTime;}function calcAvailabilityStartTimeFromPresentationTime(presentationTime,mpd,isDynamic){return calcAvailabilityTimeFromPresentationTime.call(this,presentationTime,mpd,isDynamic);}function calcAvailabilityEndTimeFromPresentationTime(presentationTime,mpd,isDynamic){return calcAvailabilityTimeFromPresentationTime.call(this,presentationTime,mpd,isDynamic,true);}function calcPresentationTimeFromWallTime(wallTime,period){return(wallTime.getTime()-period.mpd.availabilityStartTime.getTime()+clientServerTimeShift*1000)/1000;}function calcPresentationTimeFromMediaTime(mediaTime,representation){var periodStart=representation.adaptation.period.start;var presentationOffset=representation.presentationTimeOffset;return mediaTime+(periodStart-presentationOffset);}function calcMediaTimeFromPresentationTime(presentationTime,representation){var periodStart=representation.adaptation.period.start;var presentationOffset=representation.presentationTimeOffset;return presentationTime-periodStart+presentationOffset;}function calcWallTimeForSegment(segment,isDynamic){var suggestedPresentationDelay=void 0,displayStartTime=void 0,wallTime=void 0;if(isDynamic){suggestedPresentationDelay=segment.representation.adaptation.period.mpd.suggestedPresentationDelay;displayStartTime=segment.presentationStartTime+suggestedPresentationDelay;wallTime=new Date(segment.availabilityStartTime.getTime()+displayStartTime*1000);}return wallTime;}function calcSegmentAvailabilityRange(voRepresentation,isDynamic){// Static Range Finder\nvar voPeriod=voRepresentation.adaptation.period;var range={start:voPeriod.start,end:voPeriod.start+voPeriod.duration};if(!isDynamic)return range;if(!isClientServerTimeSyncCompleted&&voRepresentation.segmentAvailabilityRange){return voRepresentation.segmentAvailabilityRange;}// Dynamic Range Finder\nvar d=voRepresentation.segmentDuration||(voRepresentation.segments&&voRepresentation.segments.length?voRepresentation.segments[voRepresentation.segments.length-1].duration:0);var now=calcPresentationTimeFromWallTime(new Date(),voPeriod);var periodEnd=voPeriod.start+voPeriod.duration;range.start=Math.max(now-voPeriod.mpd.timeShiftBufferDepth,voPeriod.start);var endOffset=voRepresentation.availabilityTimeOffset!==undefined&&voRepresentation.availabilityTimeOffset<d?d-voRepresentation.availabilityTimeOffset:d;range.end=now>=periodEnd&&now-endOffset<periodEnd?periodEnd:now-endOffset;return range;}function getPeriodEnd(voRepresentation,isDynamic){// Static Range Finder\nvar voPeriod=voRepresentation.adaptation.period;if(!isDynamic){return voPeriod.start+voPeriod.duration;}if(!isClientServerTimeSyncCompleted&&voRepresentation.segmentAvailabilityRange){return voRepresentation.segmentAvailabilityRange;}// Dynamic Range Finder\nvar d=voRepresentation.segmentDuration||(voRepresentation.segments&&voRepresentation.segments.length?voRepresentation.segments[voRepresentation.segments.length-1].duration:0);var now=calcPresentationTimeFromWallTime(new Date(),voPeriod);var periodEnd=voPeriod.start+voPeriod.duration;var endOffset=voRepresentation.availabilityTimeOffset!==undefined&&voRepresentation.availabilityTimeOffset<d?d-voRepresentation.availabilityTimeOffset:d;return Math.min(now-endOffset,periodEnd);}function calcPeriodRelativeTimeFromMpdRelativeTime(representation,mpdRelativeTime){var periodStartTime=representation.adaptation.period.start;return mpdRelativeTime-periodStartTime;}/*\n    * We need to figure out if we want to timesync for segmentTimeine where useCalculatedLiveEdge = true\n    * seems we figure out client offset based on logic in liveEdgeFinder getLiveEdge timelineConverter.setClientTimeOffset(liveEdge - representationInfo.DVRWindow.end);\n    * FYI StreamController's onManifestUpdated entry point to timeSync\n    * */function onTimeSyncComplete(e){if(isClientServerTimeSyncCompleted)return;if(e.offset!==undefined){setClientTimeOffset(e.offset/1000);isClientServerTimeSyncCompleted=true;}}function resetInitialSettings(){clientServerTimeShift=0;isClientServerTimeSyncCompleted=false;expectedLiveEdge=NaN;}function reset(){eventBus.off(_Events2.default.TIME_SYNCHRONIZATION_COMPLETED,onTimeSyncComplete,this);resetInitialSettings();}instance={initialize:initialize,isTimeSyncCompleted:isTimeSyncCompleted,setTimeSyncCompleted:setTimeSyncCompleted,getClientTimeOffset:getClientTimeOffset,setClientTimeOffset:setClientTimeOffset,getExpectedLiveEdge:getExpectedLiveEdge,setExpectedLiveEdge:setExpectedLiveEdge,calcAvailabilityStartTimeFromPresentationTime:calcAvailabilityStartTimeFromPresentationTime,calcAvailabilityEndTimeFromPresentationTime:calcAvailabilityEndTimeFromPresentationTime,calcPresentationTimeFromWallTime:calcPresentationTimeFromWallTime,calcPresentationTimeFromMediaTime:calcPresentationTimeFromMediaTime,calcPeriodRelativeTimeFromMpdRelativeTime:calcPeriodRelativeTimeFromMpdRelativeTime,calcMediaTimeFromPresentationTime:calcMediaTimeFromPresentationTime,calcSegmentAvailabilityRange:calcSegmentAvailabilityRange,getPeriodEnd:getPeriodEnd,calcWallTimeForSegment:calcWallTimeForSegment,reset:reset};return instance;}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n */TimelineConverter.__dashjs_factory_name='TimelineConverter';exports.default=_FactoryMaker2.default.getSingletonFactory(TimelineConverter);\n//# sourceMappingURL=TimelineConverter.js.map\n","'use strict';\nvar anObject = require('../internals/an-object');\n\n// `RegExp.prototype.flags` getter implementation\n// https://tc39.github.io/ecma262/#sec-get-regexp.prototype.flags\nmodule.exports = function () {\n  var that = anObject(this);\n  var result = '';\n  if (that.global) result += 'g';\n  if (that.ignoreCase) result += 'i';\n  if (that.multiline) result += 'm';\n  if (that.dotAll) result += 's';\n  if (that.unicode) result += 'u';\n  if (that.sticky) result += 'y';\n  return result;\n};\n","// Copyright Joyent, Inc. and other Node contributors.\n//\n// Permission is hereby granted, free of charge, to any person obtaining a\n// copy of this software and associated documentation files (the\n// \"Software\"), to deal in the Software without restriction, including\n// without limitation the rights to use, copy, modify, merge, publish,\n// distribute, sublicense, and/or sell copies of the Software, and to permit\n// persons to whom the Software is furnished to do so, subject to the\n// following conditions:\n//\n// The above copyright notice and this permission notice shall be included\n// in all copies or substantial portions of the Software.\n//\n// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS\n// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF\n// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN\n// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,\n// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR\n// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE\n// USE OR OTHER DEALINGS IN THE SOFTWARE.\n\n'use strict';\n\n/*<replacement>*/\n\nvar pna = require('process-nextick-args');\n/*</replacement>*/\n\nmodule.exports = Readable;\n\n/*<replacement>*/\nvar isArray = require('isarray');\n/*</replacement>*/\n\n/*<replacement>*/\nvar Duplex;\n/*</replacement>*/\n\nReadable.ReadableState = ReadableState;\n\n/*<replacement>*/\nvar EE = require('events').EventEmitter;\n\nvar EElistenerCount = function (emitter, type) {\n  return emitter.listeners(type).length;\n};\n/*</replacement>*/\n\n/*<replacement>*/\nvar Stream = require('./internal/streams/stream');\n/*</replacement>*/\n\n/*<replacement>*/\n\nvar Buffer = require('safe-buffer').Buffer;\nvar OurUint8Array = global.Uint8Array || function () {};\nfunction _uint8ArrayToBuffer(chunk) {\n  return Buffer.from(chunk);\n}\nfunction _isUint8Array(obj) {\n  return Buffer.isBuffer(obj) || obj instanceof OurUint8Array;\n}\n\n/*</replacement>*/\n\n/*<replacement>*/\nvar util = Object.create(require('core-util-is'));\nutil.inherits = require('inherits');\n/*</replacement>*/\n\n/*<replacement>*/\nvar debugUtil = require('util');\nvar debug = void 0;\nif (debugUtil && debugUtil.debuglog) {\n  debug = debugUtil.debuglog('stream');\n} else {\n  debug = function () {};\n}\n/*</replacement>*/\n\nvar BufferList = require('./internal/streams/BufferList');\nvar destroyImpl = require('./internal/streams/destroy');\nvar StringDecoder;\n\nutil.inherits(Readable, Stream);\n\nvar kProxyEvents = ['error', 'close', 'destroy', 'pause', 'resume'];\n\nfunction prependListener(emitter, event, fn) {\n  // Sadly this is not cacheable as some libraries bundle their own\n  // event emitter implementation with them.\n  if (typeof emitter.prependListener === 'function') return emitter.prependListener(event, fn);\n\n  // This is a hack to make sure that our error handler is attached before any\n  // userland ones.  NEVER DO THIS. This is here only because this code needs\n  // to continue to work with older versions of Node.js that do not include\n  // the prependListener() method. The goal is to eventually remove this hack.\n  if (!emitter._events || !emitter._events[event]) emitter.on(event, fn);else if (isArray(emitter._events[event])) emitter._events[event].unshift(fn);else emitter._events[event] = [fn, emitter._events[event]];\n}\n\nfunction ReadableState(options, stream) {\n  Duplex = Duplex || require('./_stream_duplex');\n\n  options = options || {};\n\n  // Duplex streams are both readable and writable, but share\n  // the same options object.\n  // However, some cases require setting options to different\n  // values for the readable and the writable sides of the duplex stream.\n  // These options can be provided separately as readableXXX and writableXXX.\n  var isDuplex = stream instanceof Duplex;\n\n  // object stream flag. Used to make read(n) ignore n and to\n  // make all the buffer merging and length checks go away\n  this.objectMode = !!options.objectMode;\n\n  if (isDuplex) this.objectMode = this.objectMode || !!options.readableObjectMode;\n\n  // the point at which it stops calling _read() to fill the buffer\n  // Note: 0 is a valid value, means \"don't call _read preemptively ever\"\n  var hwm = options.highWaterMark;\n  var readableHwm = options.readableHighWaterMark;\n  var defaultHwm = this.objectMode ? 16 : 16 * 1024;\n\n  if (hwm || hwm === 0) this.highWaterMark = hwm;else if (isDuplex && (readableHwm || readableHwm === 0)) this.highWaterMark = readableHwm;else this.highWaterMark = defaultHwm;\n\n  // cast to ints.\n  this.highWaterMark = Math.floor(this.highWaterMark);\n\n  // A linked list is used to store data chunks instead of an array because the\n  // linked list can remove elements from the beginning faster than\n  // array.shift()\n  this.buffer = new BufferList();\n  this.length = 0;\n  this.pipes = null;\n  this.pipesCount = 0;\n  this.flowing = null;\n  this.ended = false;\n  this.endEmitted = false;\n  this.reading = false;\n\n  // a flag to be able to tell if the event 'readable'/'data' is emitted\n  // immediately, or on a later tick.  We set this to true at first, because\n  // any actions that shouldn't happen until \"later\" should generally also\n  // not happen before the first read call.\n  this.sync = true;\n\n  // whenever we return null, then we set a flag to say\n  // that we're awaiting a 'readable' event emission.\n  this.needReadable = false;\n  this.emittedReadable = false;\n  this.readableListening = false;\n  this.resumeScheduled = false;\n\n  // has it been destroyed\n  this.destroyed = false;\n\n  // Crypto is kind of old and crusty.  Historically, its default string\n  // encoding is 'binary' so we have to make this configurable.\n  // Everything else in the universe uses 'utf8', though.\n  this.defaultEncoding = options.defaultEncoding || 'utf8';\n\n  // the number of writers that are awaiting a drain event in .pipe()s\n  this.awaitDrain = 0;\n\n  // if true, a maybeReadMore has been scheduled\n  this.readingMore = false;\n\n  this.decoder = null;\n  this.encoding = null;\n  if (options.encoding) {\n    if (!StringDecoder) StringDecoder = require('string_decoder/').StringDecoder;\n    this.decoder = new StringDecoder(options.encoding);\n    this.encoding = options.encoding;\n  }\n}\n\nfunction Readable(options) {\n  Duplex = Duplex || require('./_stream_duplex');\n\n  if (!(this instanceof Readable)) return new Readable(options);\n\n  this._readableState = new ReadableState(options, this);\n\n  // legacy\n  this.readable = true;\n\n  if (options) {\n    if (typeof options.read === 'function') this._read = options.read;\n\n    if (typeof options.destroy === 'function') this._destroy = options.destroy;\n  }\n\n  Stream.call(this);\n}\n\nObject.defineProperty(Readable.prototype, 'destroyed', {\n  get: function () {\n    if (this._readableState === undefined) {\n      return false;\n    }\n    return this._readableState.destroyed;\n  },\n  set: function (value) {\n    // we ignore the value if the stream\n    // has not been initialized yet\n    if (!this._readableState) {\n      return;\n    }\n\n    // backward compatibility, the user is explicitly\n    // managing destroyed\n    this._readableState.destroyed = value;\n  }\n});\n\nReadable.prototype.destroy = destroyImpl.destroy;\nReadable.prototype._undestroy = destroyImpl.undestroy;\nReadable.prototype._destroy = function (err, cb) {\n  this.push(null);\n  cb(err);\n};\n\n// Manually shove something into the read() buffer.\n// This returns true if the highWaterMark has not been hit yet,\n// similar to how Writable.write() returns true if you should\n// write() some more.\nReadable.prototype.push = function (chunk, encoding) {\n  var state = this._readableState;\n  var skipChunkCheck;\n\n  if (!state.objectMode) {\n    if (typeof chunk === 'string') {\n      encoding = encoding || state.defaultEncoding;\n      if (encoding !== state.encoding) {\n        chunk = Buffer.from(chunk, encoding);\n        encoding = '';\n      }\n      skipChunkCheck = true;\n    }\n  } else {\n    skipChunkCheck = true;\n  }\n\n  return readableAddChunk(this, chunk, encoding, false, skipChunkCheck);\n};\n\n// Unshift should *always* be something directly out of read()\nReadable.prototype.unshift = function (chunk) {\n  return readableAddChunk(this, chunk, null, true, false);\n};\n\nfunction readableAddChunk(stream, chunk, encoding, addToFront, skipChunkCheck) {\n  var state = stream._readableState;\n  if (chunk === null) {\n    state.reading = false;\n    onEofChunk(stream, state);\n  } else {\n    var er;\n    if (!skipChunkCheck) er = chunkInvalid(state, chunk);\n    if (er) {\n      stream.emit('error', er);\n    } else if (state.objectMode || chunk && chunk.length > 0) {\n      if (typeof chunk !== 'string' && !state.objectMode && Object.getPrototypeOf(chunk) !== Buffer.prototype) {\n        chunk = _uint8ArrayToBuffer(chunk);\n      }\n\n      if (addToFront) {\n        if (state.endEmitted) stream.emit('error', new Error('stream.unshift() after end event'));else addChunk(stream, state, chunk, true);\n      } else if (state.ended) {\n        stream.emit('error', new Error('stream.push() after EOF'));\n      } else {\n        state.reading = false;\n        if (state.decoder && !encoding) {\n          chunk = state.decoder.write(chunk);\n          if (state.objectMode || chunk.length !== 0) addChunk(stream, state, chunk, false);else maybeReadMore(stream, state);\n        } else {\n          addChunk(stream, state, chunk, false);\n        }\n      }\n    } else if (!addToFront) {\n      state.reading = false;\n    }\n  }\n\n  return needMoreData(state);\n}\n\nfunction addChunk(stream, state, chunk, addToFront) {\n  if (state.flowing && state.length === 0 && !state.sync) {\n    stream.emit('data', chunk);\n    stream.read(0);\n  } else {\n    // update the buffer info.\n    state.length += state.objectMode ? 1 : chunk.length;\n    if (addToFront) state.buffer.unshift(chunk);else state.buffer.push(chunk);\n\n    if (state.needReadable) emitReadable(stream);\n  }\n  maybeReadMore(stream, state);\n}\n\nfunction chunkInvalid(state, chunk) {\n  var er;\n  if (!_isUint8Array(chunk) && typeof chunk !== 'string' && chunk !== undefined && !state.objectMode) {\n    er = new TypeError('Invalid non-string/buffer chunk');\n  }\n  return er;\n}\n\n// if it's past the high water mark, we can push in some more.\n// Also, if we have no data yet, we can stand some\n// more bytes.  This is to work around cases where hwm=0,\n// such as the repl.  Also, if the push() triggered a\n// readable event, and the user called read(largeNumber) such that\n// needReadable was set, then we ought to push more, so that another\n// 'readable' event will be triggered.\nfunction needMoreData(state) {\n  return !state.ended && (state.needReadable || state.length < state.highWaterMark || state.length === 0);\n}\n\nReadable.prototype.isPaused = function () {\n  return this._readableState.flowing === false;\n};\n\n// backwards compatibility.\nReadable.prototype.setEncoding = function (enc) {\n  if (!StringDecoder) StringDecoder = require('string_decoder/').StringDecoder;\n  this._readableState.decoder = new StringDecoder(enc);\n  this._readableState.encoding = enc;\n  return this;\n};\n\n// Don't raise the hwm > 8MB\nvar MAX_HWM = 0x800000;\nfunction computeNewHighWaterMark(n) {\n  if (n >= MAX_HWM) {\n    n = MAX_HWM;\n  } else {\n    // Get the next highest power of 2 to prevent increasing hwm excessively in\n    // tiny amounts\n    n--;\n    n |= n >>> 1;\n    n |= n >>> 2;\n    n |= n >>> 4;\n    n |= n >>> 8;\n    n |= n >>> 16;\n    n++;\n  }\n  return n;\n}\n\n// This function is designed to be inlinable, so please take care when making\n// changes to the function body.\nfunction howMuchToRead(n, state) {\n  if (n <= 0 || state.length === 0 && state.ended) return 0;\n  if (state.objectMode) return 1;\n  if (n !== n) {\n    // Only flow one buffer at a time\n    if (state.flowing && state.length) return state.buffer.head.data.length;else return state.length;\n  }\n  // If we're asking for more than the current hwm, then raise the hwm.\n  if (n > state.highWaterMark) state.highWaterMark = computeNewHighWaterMark(n);\n  if (n <= state.length) return n;\n  // Don't have enough\n  if (!state.ended) {\n    state.needReadable = true;\n    return 0;\n  }\n  return state.length;\n}\n\n// you can override either this method, or the async _read(n) below.\nReadable.prototype.read = function (n) {\n  debug('read', n);\n  n = parseInt(n, 10);\n  var state = this._readableState;\n  var nOrig = n;\n\n  if (n !== 0) state.emittedReadable = false;\n\n  // if we're doing read(0) to trigger a readable event, but we\n  // already have a bunch of data in the buffer, then just trigger\n  // the 'readable' event and move on.\n  if (n === 0 && state.needReadable && (state.length >= state.highWaterMark || state.ended)) {\n    debug('read: emitReadable', state.length, state.ended);\n    if (state.length === 0 && state.ended) endReadable(this);else emitReadable(this);\n    return null;\n  }\n\n  n = howMuchToRead(n, state);\n\n  // if we've ended, and we're now clear, then finish it up.\n  if (n === 0 && state.ended) {\n    if (state.length === 0) endReadable(this);\n    return null;\n  }\n\n  // All the actual chunk generation logic needs to be\n  // *below* the call to _read.  The reason is that in certain\n  // synthetic stream cases, such as passthrough streams, _read\n  // may be a completely synchronous operation which may change\n  // the state of the read buffer, providing enough data when\n  // before there was *not* enough.\n  //\n  // So, the steps are:\n  // 1. Figure out what the state of things will be after we do\n  // a read from the buffer.\n  //\n  // 2. If that resulting state will trigger a _read, then call _read.\n  // Note that this may be asynchronous, or synchronous.  Yes, it is\n  // deeply ugly to write APIs this way, but that still doesn't mean\n  // that the Readable class should behave improperly, as streams are\n  // designed to be sync/async agnostic.\n  // Take note if the _read call is sync or async (ie, if the read call\n  // has returned yet), so that we know whether or not it's safe to emit\n  // 'readable' etc.\n  //\n  // 3. Actually pull the requested chunks out of the buffer and return.\n\n  // if we need a readable event, then we need to do some reading.\n  var doRead = state.needReadable;\n  debug('need readable', doRead);\n\n  // if we currently have less than the highWaterMark, then also read some\n  if (state.length === 0 || state.length - n < state.highWaterMark) {\n    doRead = true;\n    debug('length less than watermark', doRead);\n  }\n\n  // however, if we've ended, then there's no point, and if we're already\n  // reading, then it's unnecessary.\n  if (state.ended || state.reading) {\n    doRead = false;\n    debug('reading or ended', doRead);\n  } else if (doRead) {\n    debug('do read');\n    state.reading = true;\n    state.sync = true;\n    // if the length is currently zero, then we *need* a readable event.\n    if (state.length === 0) state.needReadable = true;\n    // call internal read method\n    this._read(state.highWaterMark);\n    state.sync = false;\n    // If _read pushed data synchronously, then `reading` will be false,\n    // and we need to re-evaluate how much data we can return to the user.\n    if (!state.reading) n = howMuchToRead(nOrig, state);\n  }\n\n  var ret;\n  if (n > 0) ret = fromList(n, state);else ret = null;\n\n  if (ret === null) {\n    state.needReadable = true;\n    n = 0;\n  } else {\n    state.length -= n;\n  }\n\n  if (state.length === 0) {\n    // If we have nothing in the buffer, then we want to know\n    // as soon as we *do* get something into the buffer.\n    if (!state.ended) state.needReadable = true;\n\n    // If we tried to read() past the EOF, then emit end on the next tick.\n    if (nOrig !== n && state.ended) endReadable(this);\n  }\n\n  if (ret !== null) this.emit('data', ret);\n\n  return ret;\n};\n\nfunction onEofChunk(stream, state) {\n  if (state.ended) return;\n  if (state.decoder) {\n    var chunk = state.decoder.end();\n    if (chunk && chunk.length) {\n      state.buffer.push(chunk);\n      state.length += state.objectMode ? 1 : chunk.length;\n    }\n  }\n  state.ended = true;\n\n  // emit 'readable' now to make sure it gets picked up.\n  emitReadable(stream);\n}\n\n// Don't emit readable right away in sync mode, because this can trigger\n// another read() call => stack overflow.  This way, it might trigger\n// a nextTick recursion warning, but that's not so bad.\nfunction emitReadable(stream) {\n  var state = stream._readableState;\n  state.needReadable = false;\n  if (!state.emittedReadable) {\n    debug('emitReadable', state.flowing);\n    state.emittedReadable = true;\n    if (state.sync) pna.nextTick(emitReadable_, stream);else emitReadable_(stream);\n  }\n}\n\nfunction emitReadable_(stream) {\n  debug('emit readable');\n  stream.emit('readable');\n  flow(stream);\n}\n\n// at this point, the user has presumably seen the 'readable' event,\n// and called read() to consume some data.  that may have triggered\n// in turn another _read(n) call, in which case reading = true if\n// it's in progress.\n// However, if we're not ended, or reading, and the length < hwm,\n// then go ahead and try to read some more preemptively.\nfunction maybeReadMore(stream, state) {\n  if (!state.readingMore) {\n    state.readingMore = true;\n    pna.nextTick(maybeReadMore_, stream, state);\n  }\n}\n\nfunction maybeReadMore_(stream, state) {\n  var len = state.length;\n  while (!state.reading && !state.flowing && !state.ended && state.length < state.highWaterMark) {\n    debug('maybeReadMore read 0');\n    stream.read(0);\n    if (len === state.length)\n      // didn't get any data, stop spinning.\n      break;else len = state.length;\n  }\n  state.readingMore = false;\n}\n\n// abstract method.  to be overridden in specific implementation classes.\n// call cb(er, data) where data is <= n in length.\n// for virtual (non-string, non-buffer) streams, \"length\" is somewhat\n// arbitrary, and perhaps not very meaningful.\nReadable.prototype._read = function (n) {\n  this.emit('error', new Error('_read() is not implemented'));\n};\n\nReadable.prototype.pipe = function (dest, pipeOpts) {\n  var src = this;\n  var state = this._readableState;\n\n  switch (state.pipesCount) {\n    case 0:\n      state.pipes = dest;\n      break;\n    case 1:\n      state.pipes = [state.pipes, dest];\n      break;\n    default:\n      state.pipes.push(dest);\n      break;\n  }\n  state.pipesCount += 1;\n  debug('pipe count=%d opts=%j', state.pipesCount, pipeOpts);\n\n  var doEnd = (!pipeOpts || pipeOpts.end !== false) && dest !== process.stdout && dest !== process.stderr;\n\n  var endFn = doEnd ? onend : unpipe;\n  if (state.endEmitted) pna.nextTick(endFn);else src.once('end', endFn);\n\n  dest.on('unpipe', onunpipe);\n  function onunpipe(readable, unpipeInfo) {\n    debug('onunpipe');\n    if (readable === src) {\n      if (unpipeInfo && unpipeInfo.hasUnpiped === false) {\n        unpipeInfo.hasUnpiped = true;\n        cleanup();\n      }\n    }\n  }\n\n  function onend() {\n    debug('onend');\n    dest.end();\n  }\n\n  // when the dest drains, it reduces the awaitDrain counter\n  // on the source.  This would be more elegant with a .once()\n  // handler in flow(), but adding and removing repeatedly is\n  // too slow.\n  var ondrain = pipeOnDrain(src);\n  dest.on('drain', ondrain);\n\n  var cleanedUp = false;\n  function cleanup() {\n    debug('cleanup');\n    // cleanup event handlers once the pipe is broken\n    dest.removeListener('close', onclose);\n    dest.removeListener('finish', onfinish);\n    dest.removeListener('drain', ondrain);\n    dest.removeListener('error', onerror);\n    dest.removeListener('unpipe', onunpipe);\n    src.removeListener('end', onend);\n    src.removeListener('end', unpipe);\n    src.removeListener('data', ondata);\n\n    cleanedUp = true;\n\n    // if the reader is waiting for a drain event from this\n    // specific writer, then it would cause it to never start\n    // flowing again.\n    // So, if this is awaiting a drain, then we just call it now.\n    // If we don't know, then assume that we are waiting for one.\n    if (state.awaitDrain && (!dest._writableState || dest._writableState.needDrain)) ondrain();\n  }\n\n  // If the user pushes more data while we're writing to dest then we'll end up\n  // in ondata again. However, we only want to increase awaitDrain once because\n  // dest will only emit one 'drain' event for the multiple writes.\n  // => Introduce a guard on increasing awaitDrain.\n  var increasedAwaitDrain = false;\n  src.on('data', ondata);\n  function ondata(chunk) {\n    debug('ondata');\n    increasedAwaitDrain = false;\n    var ret = dest.write(chunk);\n    if (false === ret && !increasedAwaitDrain) {\n      // If the user unpiped during `dest.write()`, it is possible\n      // to get stuck in a permanently paused state if that write\n      // also returned false.\n      // => Check whether `dest` is still a piping destination.\n      if ((state.pipesCount === 1 && state.pipes === dest || state.pipesCount > 1 && indexOf(state.pipes, dest) !== -1) && !cleanedUp) {\n        debug('false write response, pause', src._readableState.awaitDrain);\n        src._readableState.awaitDrain++;\n        increasedAwaitDrain = true;\n      }\n      src.pause();\n    }\n  }\n\n  // if the dest has an error, then stop piping into it.\n  // however, don't suppress the throwing behavior for this.\n  function onerror(er) {\n    debug('onerror', er);\n    unpipe();\n    dest.removeListener('error', onerror);\n    if (EElistenerCount(dest, 'error') === 0) dest.emit('error', er);\n  }\n\n  // Make sure our error handler is attached before userland ones.\n  prependListener(dest, 'error', onerror);\n\n  // Both close and finish should trigger unpipe, but only once.\n  function onclose() {\n    dest.removeListener('finish', onfinish);\n    unpipe();\n  }\n  dest.once('close', onclose);\n  function onfinish() {\n    debug('onfinish');\n    dest.removeListener('close', onclose);\n    unpipe();\n  }\n  dest.once('finish', onfinish);\n\n  function unpipe() {\n    debug('unpipe');\n    src.unpipe(dest);\n  }\n\n  // tell the dest that it's being piped to\n  dest.emit('pipe', src);\n\n  // start the flow if it hasn't been started already.\n  if (!state.flowing) {\n    debug('pipe resume');\n    src.resume();\n  }\n\n  return dest;\n};\n\nfunction pipeOnDrain(src) {\n  return function () {\n    var state = src._readableState;\n    debug('pipeOnDrain', state.awaitDrain);\n    if (state.awaitDrain) state.awaitDrain--;\n    if (state.awaitDrain === 0 && EElistenerCount(src, 'data')) {\n      state.flowing = true;\n      flow(src);\n    }\n  };\n}\n\nReadable.prototype.unpipe = function (dest) {\n  var state = this._readableState;\n  var unpipeInfo = { hasUnpiped: false };\n\n  // if we're not piping anywhere, then do nothing.\n  if (state.pipesCount === 0) return this;\n\n  // just one destination.  most common case.\n  if (state.pipesCount === 1) {\n    // passed in one, but it's not the right one.\n    if (dest && dest !== state.pipes) return this;\n\n    if (!dest) dest = state.pipes;\n\n    // got a match.\n    state.pipes = null;\n    state.pipesCount = 0;\n    state.flowing = false;\n    if (dest) dest.emit('unpipe', this, unpipeInfo);\n    return this;\n  }\n\n  // slow case. multiple pipe destinations.\n\n  if (!dest) {\n    // remove all.\n    var dests = state.pipes;\n    var len = state.pipesCount;\n    state.pipes = null;\n    state.pipesCount = 0;\n    state.flowing = false;\n\n    for (var i = 0; i < len; i++) {\n      dests[i].emit('unpipe', this, unpipeInfo);\n    }return this;\n  }\n\n  // try to find the right one.\n  var index = indexOf(state.pipes, dest);\n  if (index === -1) return this;\n\n  state.pipes.splice(index, 1);\n  state.pipesCount -= 1;\n  if (state.pipesCount === 1) state.pipes = state.pipes[0];\n\n  dest.emit('unpipe', this, unpipeInfo);\n\n  return this;\n};\n\n// set up data events if they are asked for\n// Ensure readable listeners eventually get something\nReadable.prototype.on = function (ev, fn) {\n  var res = Stream.prototype.on.call(this, ev, fn);\n\n  if (ev === 'data') {\n    // Start flowing on next tick if stream isn't explicitly paused\n    if (this._readableState.flowing !== false) this.resume();\n  } else if (ev === 'readable') {\n    var state = this._readableState;\n    if (!state.endEmitted && !state.readableListening) {\n      state.readableListening = state.needReadable = true;\n      state.emittedReadable = false;\n      if (!state.reading) {\n        pna.nextTick(nReadingNextTick, this);\n      } else if (state.length) {\n        emitReadable(this);\n      }\n    }\n  }\n\n  return res;\n};\nReadable.prototype.addListener = Readable.prototype.on;\n\nfunction nReadingNextTick(self) {\n  debug('readable nexttick read 0');\n  self.read(0);\n}\n\n// pause() and resume() are remnants of the legacy readable stream API\n// If the user uses them, then switch into old mode.\nReadable.prototype.resume = function () {\n  var state = this._readableState;\n  if (!state.flowing) {\n    debug('resume');\n    state.flowing = true;\n    resume(this, state);\n  }\n  return this;\n};\n\nfunction resume(stream, state) {\n  if (!state.resumeScheduled) {\n    state.resumeScheduled = true;\n    pna.nextTick(resume_, stream, state);\n  }\n}\n\nfunction resume_(stream, state) {\n  if (!state.reading) {\n    debug('resume read 0');\n    stream.read(0);\n  }\n\n  state.resumeScheduled = false;\n  state.awaitDrain = 0;\n  stream.emit('resume');\n  flow(stream);\n  if (state.flowing && !state.reading) stream.read(0);\n}\n\nReadable.prototype.pause = function () {\n  debug('call pause flowing=%j', this._readableState.flowing);\n  if (false !== this._readableState.flowing) {\n    debug('pause');\n    this._readableState.flowing = false;\n    this.emit('pause');\n  }\n  return this;\n};\n\nfunction flow(stream) {\n  var state = stream._readableState;\n  debug('flow', state.flowing);\n  while (state.flowing && stream.read() !== null) {}\n}\n\n// wrap an old-style stream as the async data source.\n// This is *not* part of the readable stream interface.\n// It is an ugly unfortunate mess of history.\nReadable.prototype.wrap = function (stream) {\n  var _this = this;\n\n  var state = this._readableState;\n  var paused = false;\n\n  stream.on('end', function () {\n    debug('wrapped end');\n    if (state.decoder && !state.ended) {\n      var chunk = state.decoder.end();\n      if (chunk && chunk.length) _this.push(chunk);\n    }\n\n    _this.push(null);\n  });\n\n  stream.on('data', function (chunk) {\n    debug('wrapped data');\n    if (state.decoder) chunk = state.decoder.write(chunk);\n\n    // don't skip over falsy values in objectMode\n    if (state.objectMode && (chunk === null || chunk === undefined)) return;else if (!state.objectMode && (!chunk || !chunk.length)) return;\n\n    var ret = _this.push(chunk);\n    if (!ret) {\n      paused = true;\n      stream.pause();\n    }\n  });\n\n  // proxy all the other methods.\n  // important when wrapping filters and duplexes.\n  for (var i in stream) {\n    if (this[i] === undefined && typeof stream[i] === 'function') {\n      this[i] = function (method) {\n        return function () {\n          return stream[method].apply(stream, arguments);\n        };\n      }(i);\n    }\n  }\n\n  // proxy certain important events.\n  for (var n = 0; n < kProxyEvents.length; n++) {\n    stream.on(kProxyEvents[n], this.emit.bind(this, kProxyEvents[n]));\n  }\n\n  // when we try to consume some more bytes, simply unpause the\n  // underlying stream.\n  this._read = function (n) {\n    debug('wrapped _read', n);\n    if (paused) {\n      paused = false;\n      stream.resume();\n    }\n  };\n\n  return this;\n};\n\nObject.defineProperty(Readable.prototype, 'readableHighWaterMark', {\n  // making it explicit this property is not enumerable\n  // because otherwise some prototype manipulation in\n  // userland will fail\n  enumerable: false,\n  get: function () {\n    return this._readableState.highWaterMark;\n  }\n});\n\n// exposed for testing purposes only.\nReadable._fromList = fromList;\n\n// Pluck off n bytes from an array of buffers.\n// Length is the combined lengths of all the buffers in the list.\n// This function is designed to be inlinable, so please take care when making\n// changes to the function body.\nfunction fromList(n, state) {\n  // nothing buffered\n  if (state.length === 0) return null;\n\n  var ret;\n  if (state.objectMode) ret = state.buffer.shift();else if (!n || n >= state.length) {\n    // read it all, truncate the list\n    if (state.decoder) ret = state.buffer.join('');else if (state.buffer.length === 1) ret = state.buffer.head.data;else ret = state.buffer.concat(state.length);\n    state.buffer.clear();\n  } else {\n    // read part of list\n    ret = fromListPartial(n, state.buffer, state.decoder);\n  }\n\n  return ret;\n}\n\n// Extracts only enough buffered data to satisfy the amount requested.\n// This function is designed to be inlinable, so please take care when making\n// changes to the function body.\nfunction fromListPartial(n, list, hasStrings) {\n  var ret;\n  if (n < list.head.data.length) {\n    // slice is the same for buffers and strings\n    ret = list.head.data.slice(0, n);\n    list.head.data = list.head.data.slice(n);\n  } else if (n === list.head.data.length) {\n    // first chunk is a perfect match\n    ret = list.shift();\n  } else {\n    // result spans more than one buffer\n    ret = hasStrings ? copyFromBufferString(n, list) : copyFromBuffer(n, list);\n  }\n  return ret;\n}\n\n// Copies a specified amount of characters from the list of buffered data\n// chunks.\n// This function is designed to be inlinable, so please take care when making\n// changes to the function body.\nfunction copyFromBufferString(n, list) {\n  var p = list.head;\n  var c = 1;\n  var ret = p.data;\n  n -= ret.length;\n  while (p = p.next) {\n    var str = p.data;\n    var nb = n > str.length ? str.length : n;\n    if (nb === str.length) ret += str;else ret += str.slice(0, n);\n    n -= nb;\n    if (n === 0) {\n      if (nb === str.length) {\n        ++c;\n        if (p.next) list.head = p.next;else list.head = list.tail = null;\n      } else {\n        list.head = p;\n        p.data = str.slice(nb);\n      }\n      break;\n    }\n    ++c;\n  }\n  list.length -= c;\n  return ret;\n}\n\n// Copies a specified amount of bytes from the list of buffered data chunks.\n// This function is designed to be inlinable, so please take care when making\n// changes to the function body.\nfunction copyFromBuffer(n, list) {\n  var ret = Buffer.allocUnsafe(n);\n  var p = list.head;\n  var c = 1;\n  p.data.copy(ret);\n  n -= p.data.length;\n  while (p = p.next) {\n    var buf = p.data;\n    var nb = n > buf.length ? buf.length : n;\n    buf.copy(ret, ret.length - n, 0, nb);\n    n -= nb;\n    if (n === 0) {\n      if (nb === buf.length) {\n        ++c;\n        if (p.next) list.head = p.next;else list.head = list.tail = null;\n      } else {\n        list.head = p;\n        p.data = buf.slice(nb);\n      }\n      break;\n    }\n    ++c;\n  }\n  list.length -= c;\n  return ret;\n}\n\nfunction endReadable(stream) {\n  var state = stream._readableState;\n\n  // If we get here before consuming all the bytes, then that is a\n  // bug in node.  Should never happen.\n  if (state.length > 0) throw new Error('\"endReadable()\" called on non-empty stream');\n\n  if (!state.endEmitted) {\n    state.ended = true;\n    pna.nextTick(endReadableNT, state, stream);\n  }\n}\n\nfunction endReadableNT(state, stream) {\n  // Check that we didn't get one last unshift.\n  if (!state.endEmitted && state.length === 0) {\n    state.endEmitted = true;\n    stream.readable = false;\n    stream.emit('end');\n  }\n}\n\nfunction indexOf(xs, x) {\n  for (var i = 0, l = xs.length; i < l; i++) {\n    if (xs[i] === x) return i;\n  }\n  return -1;\n}","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _FactoryMaker=require('../../core/FactoryMaker');var _FactoryMaker2=_interopRequireDefault(_FactoryMaker);function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}/**\n * @module DefaultURLUtils\n * @description Provides utility functions for operating on URLs.\n * Initially this is simply a method to determine the Base URL of a URL, but\n * should probably include other things provided all over the place such as\n * determining whether a URL is relative/absolute, resolving two paths etc.\n */function DefaultURLUtils(){var resolveFunction=void 0;var schemeRegex=/^[a-z][a-z0-9+\\-_.]*:/i;var httpUrlRegex=/^https?:\\/\\//i;var httpsUrlRegex=/^https:\\/\\//i;var originRegex=/^([a-z][a-z0-9+\\-_.]*:\\/\\/[^\\/]+)\\/?/i;/**\n     * Resolves a url given an optional base url\n     * Uses window.URL to do the resolution.\n     *\n     * @param {string} url\n     * @param {string} [baseUrl]\n     * @return {string}\n     * @memberof module:DefaultURLUtils\n     * @instance\n     * @private\n     */var nativeURLResolver=function nativeURLResolver(url,baseUrl){try{return new window.URL(url,baseUrl).toString();}catch(e){return url;}};/**\n     * Resolves a url given an optional base url\n     * Does not resolve ./, ../ etc but will do enough to construct something\n     * which will satisfy XHR etc when window.URL is not available ie\n     * IE11/node etc.\n     *\n     * @param {string} url\n     * @param {string} [baseUrl]\n     * @return {string}\n     * @memberof module:DefaultURLUtils\n     * @instance\n     * @private\n     */var dumbURLResolver=function dumbURLResolver(url,baseUrl){var baseUrlParseFunc=parseBaseUrl;if(!baseUrl){return url;}if(!isRelative(url)){return url;}if(isPathAbsolute(url)){baseUrlParseFunc=parseOrigin;}if(isSchemeRelative(url)){baseUrlParseFunc=parseScheme;}var base=baseUrlParseFunc(baseUrl);var joinChar=base.charAt(base.length-1)!=='/'&&url.charAt(0)!=='/'?'/':'';return[base,url].join(joinChar);};function setup(){try{var u=new window.URL('x','http://y');//jshint ignore:line\nresolveFunction=nativeURLResolver;}catch(e){// must be IE11/Node etc\n}finally{resolveFunction=resolveFunction||dumbURLResolver;}}/**\n     * Returns a string that contains the Base URL of a URL, if determinable.\n     * @param {string} url - full url\n     * @return {string}\n     * @memberof module:DefaultURLUtils\n     * @instance\n     */function parseBaseUrl(url){var slashIndex=url.indexOf('/');var lastSlashIndex=url.lastIndexOf('/');if(slashIndex!==-1){// if there is only '//'\nif(lastSlashIndex===slashIndex+1){return url;}if(url.indexOf('?')!==-1){url=url.substring(0,url.indexOf('?'));}return url.substring(0,lastSlashIndex+1);}return'';}/**\n     * Returns a string that contains the scheme and origin of a URL,\n     * if determinable.\n     * @param {string} url - full url\n     * @return {string}\n     * @memberof module:DefaultURLUtils\n     * @instance\n     */function parseOrigin(url){var matches=url.match(originRegex);if(matches){return matches[1];}return'';}/**\n     * Returns a string that contains the fragment of a URL without scheme,\n     * if determinable.\n     * @param {string} url - full url\n     * @return {string}\n     * @memberof module:DefaultURLUtils\n     * @instance\n     */function removeHostname(url){var urlParts=/^(?:\\w+\\:\\/\\/)?([^\\/]+)(.*)$/.exec(url);//[1] = host / [2] = path\nreturn urlParts[2].substring(1);}/**\n     * Returns a string that contains the scheme of a URL, if determinable.\n     * @param {string} url - full url\n     * @return {string}\n     * @memberof module:DefaultURLUtils\n     * @instance\n     */function parseScheme(url){var matches=url.match(schemeRegex);if(matches){return matches[0];}return'';}/**\n     * Determines whether the url is relative.\n     * @return {boolean}\n     * @param {string} url\n     * @memberof module:DefaultURLUtils\n     * @instance\n     */function isRelative(url){return!schemeRegex.test(url);}/**\n     * Determines whether the url is path-absolute.\n     * @return {bool}\n     * @param {string} url\n     * @memberof module:DefaultURLUtils\n     * @instance\n     */function isPathAbsolute(url){return isRelative(url)&&url.charAt(0)==='/';}/**\n     * Determines whether the url is scheme-relative.\n     * @return {bool}\n     * @param {string} url\n     * @memberof module:DefaultURLUtils\n     * @instance\n     */function isSchemeRelative(url){return url.indexOf('//')===0;}/**\n     * Determines whether the url is an HTTP-URL as defined in ISO/IEC\n     * 23009-1:2014 3.1.15. ie URL with a fixed scheme of http or https\n     * @return {bool}\n     * @param {string} url\n     * @memberof module:DefaultURLUtils\n     * @instance\n     */function isHTTPURL(url){return httpUrlRegex.test(url);}/**\n     * Determines whether the supplied url has https scheme\n     * @return {bool}\n     * @param {string} url\n     * @memberof module:DefaultURLUtils\n     * @instance\n     */function isHTTPS(url){return httpsUrlRegex.test(url);}/**\n     * Resolves a url given an optional base url\n     * @return {string}\n     * @param {string} url\n     * @param {string} [baseUrl]\n     * @memberof module:DefaultURLUtils\n     * @instance\n     */function resolve(url,baseUrl){return resolveFunction(url,baseUrl);}setup();var instance={parseBaseUrl:parseBaseUrl,parseOrigin:parseOrigin,parseScheme:parseScheme,isRelative:isRelative,isPathAbsolute:isPathAbsolute,isSchemeRelative:isSchemeRelative,isHTTPURL:isHTTPURL,isHTTPS:isHTTPS,removeHostname:removeHostname,resolve:resolve};return instance;}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n */DefaultURLUtils.__dashjs_factory_name='DefaultURLUtils';exports.default=_FactoryMaker2.default.getSingletonFactory(DefaultURLUtils);\n//# sourceMappingURL=DefaultURLUtils.js.map\n","var DESCRIPTORS = require('../internals/descriptors');\nvar fails = require('../internals/fails');\nvar has = require('../internals/has');\n\nvar defineProperty = Object.defineProperty;\nvar cache = {};\n\nvar thrower = function (it) { throw it; };\n\nmodule.exports = function (METHOD_NAME, options) {\n  if (has(cache, METHOD_NAME)) return cache[METHOD_NAME];\n  if (!options) options = {};\n  var method = [][METHOD_NAME];\n  var ACCESSORS = has(options, 'ACCESSORS') ? options.ACCESSORS : false;\n  var argument0 = has(options, 0) ? options[0] : thrower;\n  var argument1 = has(options, 1) ? options[1] : undefined;\n\n  return cache[METHOD_NAME] = !!method && !fails(function () {\n    if (ACCESSORS && !DESCRIPTORS) return true;\n    var O = { length: -1 };\n\n    if (ACCESSORS) defineProperty(O, 1, { enumerable: true, get: thrower });\n    else O[1] = 1;\n\n    method.call(O, argument0, argument1);\n  });\n};\n","'use strict';\nvar getPrototypeOf = require('../internals/object-get-prototype-of');\nvar createNonEnumerableProperty = require('../internals/create-non-enumerable-property');\nvar has = require('../internals/has');\nvar wellKnownSymbol = require('../internals/well-known-symbol');\nvar IS_PURE = require('../internals/is-pure');\n\nvar ITERATOR = wellKnownSymbol('iterator');\nvar BUGGY_SAFARI_ITERATORS = false;\n\nvar returnThis = function () { return this; };\n\n// `%IteratorPrototype%` object\n// https://tc39.github.io/ecma262/#sec-%iteratorprototype%-object\nvar IteratorPrototype, PrototypeOfArrayIteratorPrototype, arrayIterator;\n\nif ([].keys) {\n  arrayIterator = [].keys();\n  // Safari 8 has buggy iterators w/o `next`\n  if (!('next' in arrayIterator)) BUGGY_SAFARI_ITERATORS = true;\n  else {\n    PrototypeOfArrayIteratorPrototype = getPrototypeOf(getPrototypeOf(arrayIterator));\n    if (PrototypeOfArrayIteratorPrototype !== Object.prototype) IteratorPrototype = PrototypeOfArrayIteratorPrototype;\n  }\n}\n\nif (IteratorPrototype == undefined) IteratorPrototype = {};\n\n// 25.1.2.1.1 %IteratorPrototype%[@@iterator]()\nif (!IS_PURE && !has(IteratorPrototype, ITERATOR)) {\n  createNonEnumerableProperty(IteratorPrototype, ITERATOR, returnThis);\n}\n\nmodule.exports = {\n  IteratorPrototype: IteratorPrototype,\n  BUGGY_SAFARI_ITERATORS: BUGGY_SAFARI_ITERATORS\n};\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _ObjectUtils=require('../utils/ObjectUtils');var _ObjectUtils2=_interopRequireDefault(_ObjectUtils);var _FactoryMaker=require('../../core/FactoryMaker');var _FactoryMaker2=_interopRequireDefault(_FactoryMaker);function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}function _classCallCheck(instance,Constructor){if(!(instance instanceof Constructor)){throw new TypeError(\"Cannot call a class as a function\");}}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n */var DEFAULT_INDEX=NaN;var Node=function Node(_baseUrls,_selectedIdx){_classCallCheck(this,Node);this.data={baseUrls:_baseUrls||null,selectedIdx:_selectedIdx||DEFAULT_INDEX};this.children=[];};function BaseURLTreeModel(){var instance=void 0,root=void 0,adapter=void 0;var context=this.context;var objectUtils=(0,_ObjectUtils2.default)(context).getInstance();function setup(){reset();}function setConfig(config){if(config.adapter){adapter=config.adapter;}}function checkConfig(){if(!adapter||!adapter.hasOwnProperty('getBaseURLsFromElement')||!adapter.hasOwnProperty('getRepresentationSortFunction')){throw new Error('setConfig function has to be called previously');}}function updateChildData(node,index,element){var baseUrls=adapter.getBaseURLsFromElement(element);if(!node[index]){node[index]=new Node(baseUrls);}else{if(!objectUtils.areEqual(baseUrls,node[index].data.baseUrls)){node[index].data.baseUrls=baseUrls;node[index].data.selectedIdx=DEFAULT_INDEX;}}}function getBaseURLCollectionsFromManifest(manifest){checkConfig();var baseUrls=adapter.getBaseURLsFromElement(manifest);if(!objectUtils.areEqual(baseUrls,root.data.baseUrls)){root.data.baseUrls=baseUrls;root.data.selectedIdx=DEFAULT_INDEX;}if(manifest&&manifest.Period_asArray){manifest.Period_asArray.forEach(function(p,pi){updateChildData(root.children,pi,p);if(p.AdaptationSet_asArray){p.AdaptationSet_asArray.forEach(function(a,ai){updateChildData(root.children[pi].children,ai,a);if(a.Representation_asArray){a.Representation_asArray.sort(adapter.getRepresentationSortFunction()).forEach(function(r,ri){updateChildData(root.children[pi].children[ai].children,ri,r);});}});}});}}function walk(callback,node){var target=node||root;callback(target.data);if(target.children){target.children.forEach(function(child){return walk(callback,child);});}}function invalidateSelectedIndexes(serviceLocation){walk(function(data){if(!isNaN(data.selectedIdx)){if(serviceLocation===data.baseUrls[data.selectedIdx].serviceLocation){data.selectedIdx=DEFAULT_INDEX;}}});}function update(manifest){getBaseURLCollectionsFromManifest(manifest);}function reset(){root=new Node();}function getForPath(path){var target=root;var nodes=[target.data];if(path){path.forEach(function(p){target=target.children[p];if(target){nodes.push(target.data);}});}return nodes.filter(function(n){return n.baseUrls.length;});}instance={reset:reset,update:update,getForPath:getForPath,invalidateSelectedIndexes:invalidateSelectedIndexes,setConfig:setConfig};setup();return instance;}BaseURLTreeModel.__dashjs_factory_name='BaseURLTreeModel';exports.default=_FactoryMaker2.default.getClassFactory(BaseURLTreeModel);\n//# sourceMappingURL=BaseURLTreeModel.js.map\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _BaseMatcher2=require('./BaseMatcher');var _BaseMatcher3=_interopRequireDefault(_BaseMatcher2);function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}function _classCallCheck(instance,Constructor){if(!(instance instanceof Constructor)){throw new TypeError(\"Cannot call a class as a function\");}}function _possibleConstructorReturn(self,call){if(!self){throw new ReferenceError(\"this hasn't been initialised - super() hasn't been called\");}return call&&(typeof call===\"object\"||typeof call===\"function\")?call:self;}function _inherits(subClass,superClass){if(typeof superClass!==\"function\"&&superClass!==null){throw new TypeError(\"Super expression must either be null or a function, not \"+typeof superClass);}subClass.prototype=Object.create(superClass&&superClass.prototype,{constructor:{value:subClass,enumerable:false,writable:true,configurable:true}});if(superClass)Object.setPrototypeOf?Object.setPrototypeOf(subClass,superClass):subClass.__proto__=superClass;}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n *//**\n * @classdesc Matches and converts xs:numeric to float\n */var numericRegex=/^[-+]?[0-9]+[.]?[0-9]*([eE][-+]?[0-9]+)?$/;var NumericMatcher=function(_BaseMatcher){_inherits(NumericMatcher,_BaseMatcher);function NumericMatcher(){_classCallCheck(this,NumericMatcher);return _possibleConstructorReturn(this,(NumericMatcher.__proto__||Object.getPrototypeOf(NumericMatcher)).call(this,function(attr){return numericRegex.test(attr.value);},function(str){return parseFloat(str);}));}return NumericMatcher;}(_BaseMatcher3.default);exports.default=NumericMatcher;\n//# sourceMappingURL=NumericMatcher.js.map\n","/**\n * Copyright 2013 vtt.js Contributors\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nvar autoKeyword = \"auto\";\nvar directionSetting = {\n  \"\": 1,\n  \"lr\": 1,\n  \"rl\": 1\n};\nvar alignSetting = {\n  \"start\": 1,\n  \"center\": 1,\n  \"end\": 1,\n  \"left\": 1,\n  \"right\": 1,\n  \"auto\": 1,\n  \"line-left\": 1,\n  \"line-right\": 1\n};\n\nfunction findDirectionSetting(value) {\n  if (typeof value !== \"string\") {\n    return false;\n  }\n  var dir = directionSetting[value.toLowerCase()];\n  return dir ? value.toLowerCase() : false;\n}\n\nfunction findAlignSetting(value) {\n  if (typeof value !== \"string\") {\n    return false;\n  }\n  var align = alignSetting[value.toLowerCase()];\n  return align ? value.toLowerCase() : false;\n}\n\nfunction VTTCue(startTime, endTime, text) {\n  /**\n   * Shim implementation specific properties. These properties are not in\n   * the spec.\n   */\n\n  // Lets us know when the VTTCue's data has changed in such a way that we need\n  // to recompute its display state. This lets us compute its display state\n  // lazily.\n  this.hasBeenReset = false;\n\n  /**\n   * VTTCue and TextTrackCue properties\n   * http://dev.w3.org/html5/webvtt/#vttcue-interface\n   */\n\n  var _id = \"\";\n  var _pauseOnExit = false;\n  var _startTime = startTime;\n  var _endTime = endTime;\n  var _text = text;\n  var _region = null;\n  var _vertical = \"\";\n  var _snapToLines = true;\n  var _line = \"auto\";\n  var _lineAlign = \"start\";\n  var _position = \"auto\";\n  var _positionAlign = \"auto\";\n  var _size = 100;\n  var _align = \"center\";\n\n  Object.defineProperties(this, {\n    \"id\": {\n      enumerable: true,\n      get: function() {\n        return _id;\n      },\n      set: function(value) {\n        _id = \"\" + value;\n      }\n    },\n\n    \"pauseOnExit\": {\n      enumerable: true,\n      get: function() {\n        return _pauseOnExit;\n      },\n      set: function(value) {\n        _pauseOnExit = !!value;\n      }\n    },\n\n    \"startTime\": {\n      enumerable: true,\n      get: function() {\n        return _startTime;\n      },\n      set: function(value) {\n        if (typeof value !== \"number\") {\n          throw new TypeError(\"Start time must be set to a number.\");\n        }\n        _startTime = value;\n        this.hasBeenReset = true;\n      }\n    },\n\n    \"endTime\": {\n      enumerable: true,\n      get: function() {\n        return _endTime;\n      },\n      set: function(value) {\n        if (typeof value !== \"number\") {\n          throw new TypeError(\"End time must be set to a number.\");\n        }\n        _endTime = value;\n        this.hasBeenReset = true;\n      }\n    },\n\n    \"text\": {\n      enumerable: true,\n      get: function() {\n        return _text;\n      },\n      set: function(value) {\n        _text = \"\" + value;\n        this.hasBeenReset = true;\n      }\n    },\n\n    \"region\": {\n      enumerable: true,\n      get: function() {\n        return _region;\n      },\n      set: function(value) {\n        _region = value;\n        this.hasBeenReset = true;\n      }\n    },\n\n    \"vertical\": {\n      enumerable: true,\n      get: function() {\n        return _vertical;\n      },\n      set: function(value) {\n        var setting = findDirectionSetting(value);\n        // Have to check for false because the setting an be an empty string.\n        if (setting === false) {\n          throw new SyntaxError(\"Vertical: an invalid or illegal direction string was specified.\");\n        }\n        _vertical = setting;\n        this.hasBeenReset = true;\n      }\n    },\n\n    \"snapToLines\": {\n      enumerable: true,\n      get: function() {\n        return _snapToLines;\n      },\n      set: function(value) {\n        _snapToLines = !!value;\n        this.hasBeenReset = true;\n      }\n    },\n\n    \"line\": {\n      enumerable: true,\n      get: function() {\n        return _line;\n      },\n      set: function(value) {\n        if (typeof value !== \"number\" && value !== autoKeyword) {\n          throw new SyntaxError(\"Line: an invalid number or illegal string was specified.\");\n        }\n        _line = value;\n        this.hasBeenReset = true;\n      }\n    },\n\n    \"lineAlign\": {\n      enumerable: true,\n      get: function() {\n        return _lineAlign;\n      },\n      set: function(value) {\n        var setting = findAlignSetting(value);\n        if (!setting) {\n          console.warn(\"lineAlign: an invalid or illegal string was specified.\");\n        } else {\n          _lineAlign = setting;\n          this.hasBeenReset = true;\n        }\n      }\n    },\n\n    \"position\": {\n      enumerable: true,\n      get: function() {\n        return _position;\n      },\n      set: function(value) {\n        if (value < 0 || value > 100) {\n          throw new Error(\"Position must be between 0 and 100.\");\n        }\n        _position = value;\n        this.hasBeenReset = true;\n      }\n    },\n\n    \"positionAlign\": {\n      enumerable: true,\n      get: function() {\n        return _positionAlign;\n      },\n      set: function(value) {\n        var setting = findAlignSetting(value);\n        if (!setting) {\n          console.warn(\"positionAlign: an invalid or illegal string was specified.\");\n        } else {\n          _positionAlign = setting;\n          this.hasBeenReset = true;\n        }\n      }\n    },\n\n    \"size\": {\n      enumerable: true,\n      get: function() {\n        return _size;\n      },\n      set: function(value) {\n        if (value < 0 || value > 100) {\n          throw new Error(\"Size must be between 0 and 100.\");\n        }\n        _size = value;\n        this.hasBeenReset = true;\n      }\n    },\n\n    \"align\": {\n      enumerable: true,\n      get: function() {\n        return _align;\n      },\n      set: function(value) {\n        var setting = findAlignSetting(value);\n        if (!setting) {\n          throw new SyntaxError(\"align: an invalid or illegal alignment string was specified.\");\n        }\n        _align = setting;\n        this.hasBeenReset = true;\n      }\n    }\n  });\n\n  /**\n   * Other <track> spec defined properties\n   */\n\n  // http://www.whatwg.org/specs/web-apps/current-work/multipage/the-video-element.html#text-track-cue-display-state\n  this.displayState = undefined;\n}\n\n/**\n * VTTCue methods\n */\n\nVTTCue.prototype.getCueAsHTML = function() {\n  // Assume WebVTT.convertCueToDOMTree is on the global.\n  return WebVTT.convertCueToDOMTree(window, this.text);\n};\n\nmodule.exports = VTTCue;\n","'use strict';\nvar TO_STRING_TAG_SUPPORT = require('../internals/to-string-tag-support');\nvar classof = require('../internals/classof');\n\n// `Object.prototype.toString` method implementation\n// https://tc39.github.io/ecma262/#sec-object.prototype.tostring\nmodule.exports = TO_STRING_TAG_SUPPORT ? {}.toString : function toString() {\n  return '[object ' + classof(this) + ']';\n};\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _createClass=function(){function defineProperties(target,props){for(var i=0;i<props.length;i++){var descriptor=props[i];descriptor.enumerable=descriptor.enumerable||false;descriptor.configurable=true;if(\"value\"in descriptor)descriptor.writable=true;Object.defineProperty(target,descriptor.key,descriptor);}}return function(Constructor,protoProps,staticProps){if(protoProps)defineProperties(Constructor.prototype,protoProps);if(staticProps)defineProperties(Constructor,staticProps);return Constructor;};}();/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n *//**\n * @classdesc a node at some level in a ValueMap\n */var _CommonProperty=require('./CommonProperty');var _CommonProperty2=_interopRequireDefault(_CommonProperty);function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}function _classCallCheck(instance,Constructor){if(!(instance instanceof Constructor)){throw new TypeError(\"Cannot call a class as a function\");}}var MapNode=function(){function MapNode(name,properties,children){var _this=this;_classCallCheck(this,MapNode);this._name=name||'';this._properties=[];this._children=children||[];if(Array.isArray(properties)){properties.forEach(function(p){_this._properties.push(new _CommonProperty2.default(p));});}}_createClass(MapNode,[{key:'name',get:function get(){return this._name;}},{key:'children',get:function get(){return this._children;}},{key:'properties',get:function get(){return this._properties;}}]);return MapNode;}();exports.default=MapNode;\n//# sourceMappingURL=MapNode.js.map\n","var conventions = require(\"./conventions\");\nvar dom = require('./dom')\nvar entities = require('./entities');\nvar sax = require('./sax');\n\nvar DOMImplementation = dom.DOMImplementation;\n\nvar NAMESPACE = conventions.NAMESPACE;\n\nvar ParseError = sax.ParseError;\nvar XMLReader = sax.XMLReader;\n\nfunction DOMParser(options){\n\tthis.options = options ||{locator:{}};\n}\n\nDOMParser.prototype.parseFromString = function(source,mimeType){\n\tvar options = this.options;\n\tvar sax =  new XMLReader();\n\tvar domBuilder = options.domBuilder || new DOMHandler();//contentHandler and LexicalHandler\n\tvar errorHandler = options.errorHandler;\n\tvar locator = options.locator;\n\tvar defaultNSMap = options.xmlns||{};\n\tvar isHTML = /\\/x?html?$/.test(mimeType);//mimeType.toLowerCase().indexOf('html') > -1;\n  \tvar entityMap = isHTML ? entities.HTML_ENTITIES : entities.XML_ENTITIES;\n\tif(locator){\n\t\tdomBuilder.setDocumentLocator(locator)\n\t}\n\n\tsax.errorHandler = buildErrorHandler(errorHandler,domBuilder,locator);\n\tsax.domBuilder = options.domBuilder || domBuilder;\n\tif(isHTML){\n\t\tdefaultNSMap[''] = NAMESPACE.HTML;\n\t}\n\tdefaultNSMap.xml = defaultNSMap.xml || NAMESPACE.XML;\n\tif(source && typeof source === 'string'){\n\t\tsax.parse(source,defaultNSMap,entityMap);\n\t}else{\n\t\tsax.errorHandler.error(\"invalid doc source\");\n\t}\n\treturn domBuilder.doc;\n}\nfunction buildErrorHandler(errorImpl,domBuilder,locator){\n\tif(!errorImpl){\n\t\tif(domBuilder instanceof DOMHandler){\n\t\t\treturn domBuilder;\n\t\t}\n\t\terrorImpl = domBuilder ;\n\t}\n\tvar errorHandler = {}\n\tvar isCallback = errorImpl instanceof Function;\n\tlocator = locator||{}\n\tfunction build(key){\n\t\tvar fn = errorImpl[key];\n\t\tif(!fn && isCallback){\n\t\t\tfn = errorImpl.length == 2?function(msg){errorImpl(key,msg)}:errorImpl;\n\t\t}\n\t\terrorHandler[key] = fn && function(msg){\n\t\t\tfn('[xmldom '+key+']\\t'+msg+_locator(locator));\n\t\t}||function(){};\n\t}\n\tbuild('warning');\n\tbuild('error');\n\tbuild('fatalError');\n\treturn errorHandler;\n}\n\n//console.log('#\\n\\n\\n\\n\\n\\n\\n####')\n/**\n * +ContentHandler+ErrorHandler\n * +LexicalHandler+EntityResolver2\n * -DeclHandler-DTDHandler\n *\n * DefaultHandler:EntityResolver, DTDHandler, ContentHandler, ErrorHandler\n * DefaultHandler2:DefaultHandler,LexicalHandler, DeclHandler, EntityResolver2\n * @link http://www.saxproject.org/apidoc/org/xml/sax/helpers/DefaultHandler.html\n */\nfunction DOMHandler() {\n    this.cdata = false;\n}\nfunction position(locator,node){\n\tnode.lineNumber = locator.lineNumber;\n\tnode.columnNumber = locator.columnNumber;\n}\n/**\n * @see org.xml.sax.ContentHandler#startDocument\n * @link http://www.saxproject.org/apidoc/org/xml/sax/ContentHandler.html\n */\nDOMHandler.prototype = {\n\tstartDocument : function() {\n    \tthis.doc = new DOMImplementation().createDocument(null, null, null);\n    \tif (this.locator) {\n        \tthis.doc.documentURI = this.locator.systemId;\n    \t}\n\t},\n\tstartElement:function(namespaceURI, localName, qName, attrs) {\n\t\tvar doc = this.doc;\n\t    var el = doc.createElementNS(namespaceURI, qName||localName);\n\t    var len = attrs.length;\n\t    appendElement(this, el);\n\t    this.currentElement = el;\n\n\t\tthis.locator && position(this.locator,el)\n\t    for (var i = 0 ; i < len; i++) {\n\t        var namespaceURI = attrs.getURI(i);\n\t        var value = attrs.getValue(i);\n\t        var qName = attrs.getQName(i);\n\t\t\tvar attr = doc.createAttributeNS(namespaceURI, qName);\n\t\t\tthis.locator &&position(attrs.getLocator(i),attr);\n\t\t\tattr.value = attr.nodeValue = value;\n\t\t\tel.setAttributeNode(attr)\n\t    }\n\t},\n\tendElement:function(namespaceURI, localName, qName) {\n\t\tvar current = this.currentElement\n\t\tvar tagName = current.tagName;\n\t\tthis.currentElement = current.parentNode;\n\t},\n\tstartPrefixMapping:function(prefix, uri) {\n\t},\n\tendPrefixMapping:function(prefix) {\n\t},\n\tprocessingInstruction:function(target, data) {\n\t    var ins = this.doc.createProcessingInstruction(target, data);\n\t    this.locator && position(this.locator,ins)\n\t    appendElement(this, ins);\n\t},\n\tignorableWhitespace:function(ch, start, length) {\n\t},\n\tcharacters:function(chars, start, length) {\n\t\tchars = _toString.apply(this,arguments)\n\t\t//console.log(chars)\n\t\tif(chars){\n\t\t\tif (this.cdata) {\n\t\t\t\tvar charNode = this.doc.createCDATASection(chars);\n\t\t\t} else {\n\t\t\t\tvar charNode = this.doc.createTextNode(chars);\n\t\t\t}\n\t\t\tif(this.currentElement){\n\t\t\t\tthis.currentElement.appendChild(charNode);\n\t\t\t}else if(/^\\s*$/.test(chars)){\n\t\t\t\tthis.doc.appendChild(charNode);\n\t\t\t\t//process xml\n\t\t\t}\n\t\t\tthis.locator && position(this.locator,charNode)\n\t\t}\n\t},\n\tskippedEntity:function(name) {\n\t},\n\tendDocument:function() {\n\t\tthis.doc.normalize();\n\t},\n\tsetDocumentLocator:function (locator) {\n\t    if(this.locator = locator){// && !('lineNumber' in locator)){\n\t    \tlocator.lineNumber = 0;\n\t    }\n\t},\n\t//LexicalHandler\n\tcomment:function(chars, start, length) {\n\t\tchars = _toString.apply(this,arguments)\n\t    var comm = this.doc.createComment(chars);\n\t    this.locator && position(this.locator,comm)\n\t    appendElement(this, comm);\n\t},\n\n\tstartCDATA:function() {\n\t    //used in characters() methods\n\t    this.cdata = true;\n\t},\n\tendCDATA:function() {\n\t    this.cdata = false;\n\t},\n\n\tstartDTD:function(name, publicId, systemId) {\n\t\tvar impl = this.doc.implementation;\n\t    if (impl && impl.createDocumentType) {\n\t        var dt = impl.createDocumentType(name, publicId, systemId);\n\t        this.locator && position(this.locator,dt)\n\t        appendElement(this, dt);\n\t\t\t\t\tthis.doc.doctype = dt;\n\t    }\n\t},\n\t/**\n\t * @see org.xml.sax.ErrorHandler\n\t * @link http://www.saxproject.org/apidoc/org/xml/sax/ErrorHandler.html\n\t */\n\twarning:function(error) {\n\t\tconsole.warn('[xmldom warning]\\t'+error,_locator(this.locator));\n\t},\n\terror:function(error) {\n\t\tconsole.error('[xmldom error]\\t'+error,_locator(this.locator));\n\t},\n\tfatalError:function(error) {\n\t\tthrow new ParseError(error, this.locator);\n\t}\n}\nfunction _locator(l){\n\tif(l){\n\t\treturn '\\n@'+(l.systemId ||'')+'#[line:'+l.lineNumber+',col:'+l.columnNumber+']'\n\t}\n}\nfunction _toString(chars,start,length){\n\tif(typeof chars == 'string'){\n\t\treturn chars.substr(start,length)\n\t}else{//java sax connect width xmldom on rhino(what about: \"? && !(chars instanceof String)\")\n\t\tif(chars.length >= start+length || start){\n\t\t\treturn new java.lang.String(chars,start,length)+'';\n\t\t}\n\t\treturn chars;\n\t}\n}\n\n/*\n * @link http://www.saxproject.org/apidoc/org/xml/sax/ext/LexicalHandler.html\n * used method of org.xml.sax.ext.LexicalHandler:\n *  #comment(chars, start, length)\n *  #startCDATA()\n *  #endCDATA()\n *  #startDTD(name, publicId, systemId)\n *\n *\n * IGNORED method of org.xml.sax.ext.LexicalHandler:\n *  #endDTD()\n *  #startEntity(name)\n *  #endEntity(name)\n *\n *\n * @link http://www.saxproject.org/apidoc/org/xml/sax/ext/DeclHandler.html\n * IGNORED method of org.xml.sax.ext.DeclHandler\n * \t#attributeDecl(eName, aName, type, mode, value)\n *  #elementDecl(name, model)\n *  #externalEntityDecl(name, publicId, systemId)\n *  #internalEntityDecl(name, value)\n * @link http://www.saxproject.org/apidoc/org/xml/sax/ext/EntityResolver2.html\n * IGNORED method of org.xml.sax.EntityResolver2\n *  #resolveEntity(String name,String publicId,String baseURI,String systemId)\n *  #resolveEntity(publicId, systemId)\n *  #getExternalSubset(name, baseURI)\n * @link http://www.saxproject.org/apidoc/org/xml/sax/DTDHandler.html\n * IGNORED method of org.xml.sax.DTDHandler\n *  #notationDecl(name, publicId, systemId) {};\n *  #unparsedEntityDecl(name, publicId, systemId, notationName) {};\n */\n\"endDTD,startEntity,endEntity,attributeDecl,elementDecl,externalEntityDecl,internalEntityDecl,resolveEntity,getExternalSubset,notationDecl,unparsedEntityDecl\".replace(/\\w+/g,function(key){\n\tDOMHandler.prototype[key] = function(){return null}\n})\n\n/* Private static helpers treated below as private instance methods, so don't need to add these to the public API; we might use a Relator to also get rid of non-standard public properties */\nfunction appendElement (hander,node) {\n    if (!hander.currentElement) {\n        hander.doc.appendChild(node);\n    } else {\n        hander.currentElement.appendChild(node);\n    }\n}//appendChild and setAttributeNS are preformance key\n\nexports.__DOMHandler = DOMHandler;\nexports.DOMParser = DOMParser;\n\n/**\n * @deprecated Import/require from main entry point instead\n */\nexports.DOMImplementation = dom.DOMImplementation;\n\n/**\n * @deprecated Import/require from main entry point instead\n */\nexports.XMLSerializer = dom.XMLSerializer;\n","var DESCRIPTORS = require('../internals/descriptors');\nvar defineProperty = require('../internals/object-define-property').f;\n\nvar FunctionPrototype = Function.prototype;\nvar FunctionPrototypeToString = FunctionPrototype.toString;\nvar nameRE = /^\\s*function ([^ (]*)/;\nvar NAME = 'name';\n\n// Function instances `.name` property\n// https://tc39.github.io/ecma262/#sec-function-instances-name\nif (DESCRIPTORS && !(NAME in FunctionPrototype)) {\n  defineProperty(FunctionPrototype, NAME, {\n    configurable: true,\n    get: function () {\n      try {\n        return FunctionPrototypeToString.call(this).match(nameRE)[1];\n      } catch (error) {\n        return '';\n      }\n    }\n  });\n}\n","// Copyright Joyent, Inc. and other Node contributors.\n//\n// Permission is hereby granted, free of charge, to any person obtaining a\n// copy of this software and associated documentation files (the\n// \"Software\"), to deal in the Software without restriction, including\n// without limitation the rights to use, copy, modify, merge, publish,\n// distribute, sublicense, and/or sell copies of the Software, and to permit\n// persons to whom the Software is furnished to do so, subject to the\n// following conditions:\n//\n// The above copyright notice and this permission notice shall be included\n// in all copies or substantial portions of the Software.\n//\n// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS\n// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF\n// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN\n// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,\n// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR\n// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE\n// USE OR OTHER DEALINGS IN THE SOFTWARE.\n\n// a duplex stream is just a stream that is both readable and writable.\n// Since JS doesn't have multiple prototypal inheritance, this class\n// prototypally inherits from Readable, and then parasitically from\n// Writable.\n\n'use strict';\n\n/*<replacement>*/\n\nvar pna = require('process-nextick-args');\n/*</replacement>*/\n\n/*<replacement>*/\nvar objectKeys = Object.keys || function (obj) {\n  var keys = [];\n  for (var key in obj) {\n    keys.push(key);\n  }return keys;\n};\n/*</replacement>*/\n\nmodule.exports = Duplex;\n\n/*<replacement>*/\nvar util = Object.create(require('core-util-is'));\nutil.inherits = require('inherits');\n/*</replacement>*/\n\nvar Readable = require('./_stream_readable');\nvar Writable = require('./_stream_writable');\n\nutil.inherits(Duplex, Readable);\n\n{\n  // avoid scope creep, the keys array can then be collected\n  var keys = objectKeys(Writable.prototype);\n  for (var v = 0; v < keys.length; v++) {\n    var method = keys[v];\n    if (!Duplex.prototype[method]) Duplex.prototype[method] = Writable.prototype[method];\n  }\n}\n\nfunction Duplex(options) {\n  if (!(this instanceof Duplex)) return new Duplex(options);\n\n  Readable.call(this, options);\n  Writable.call(this, options);\n\n  if (options && options.readable === false) this.readable = false;\n\n  if (options && options.writable === false) this.writable = false;\n\n  this.allowHalfOpen = true;\n  if (options && options.allowHalfOpen === false) this.allowHalfOpen = false;\n\n  this.once('end', onend);\n}\n\nObject.defineProperty(Duplex.prototype, 'writableHighWaterMark', {\n  // making it explicit this property is not enumerable\n  // because otherwise some prototype manipulation in\n  // userland will fail\n  enumerable: false,\n  get: function () {\n    return this._writableState.highWaterMark;\n  }\n});\n\n// the no-half-open enforcer\nfunction onend() {\n  // if we allow half-open state, or if the writable side ended,\n  // then we're ok.\n  if (this.allowHalfOpen || this._writableState.ended) return;\n\n  // no more data can be written.\n  // But allow more writes to happen in this tick.\n  pna.nextTick(onEndNT, this);\n}\n\nfunction onEndNT(self) {\n  self.end();\n}\n\nObject.defineProperty(Duplex.prototype, 'destroyed', {\n  get: function () {\n    if (this._readableState === undefined || this._writableState === undefined) {\n      return false;\n    }\n    return this._readableState.destroyed && this._writableState.destroyed;\n  },\n  set: function (value) {\n    // we ignore the value if the stream\n    // has not been initialized yet\n    if (this._readableState === undefined || this._writableState === undefined) {\n      return;\n    }\n\n    // backward compatibility, the user is explicitly\n    // managing destroyed\n    this._readableState.destroyed = value;\n    this._writableState.destroyed = value;\n  }\n});\n\nDuplex.prototype._destroy = function (err, cb) {\n  this.push(null);\n  this.end();\n\n  pna.nextTick(cb, err);\n};","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _DashConstants=require('./constants/DashConstants');var _DashConstants2=_interopRequireDefault(_DashConstants);var _RepresentationInfo=require('./vo/RepresentationInfo');var _RepresentationInfo2=_interopRequireDefault(_RepresentationInfo);var _MediaInfo=require('./vo/MediaInfo');var _MediaInfo2=_interopRequireDefault(_MediaInfo);var _StreamInfo=require('./vo/StreamInfo');var _StreamInfo2=_interopRequireDefault(_StreamInfo);var _ManifestInfo=require('./vo/ManifestInfo');var _ManifestInfo2=_interopRequireDefault(_ManifestInfo);var _Event=require('./vo/Event');var _Event2=_interopRequireDefault(_Event);var _FactoryMaker=require('../core/FactoryMaker');var _FactoryMaker2=_interopRequireDefault(_FactoryMaker);var _DashManifestModel=require('./models/DashManifestModel');var _DashManifestModel2=_interopRequireDefault(_DashManifestModel);function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n */function DashAdapter(){var instance=void 0,dashManifestModel=void 0,voPeriods=void 0,voAdaptations=void 0,currentMediaInfo=void 0,constants=void 0,cea608parser=void 0;var context=this.context;var PROFILE_DVB='urn:dvb:dash:profile:dvb-dash:2014';function setup(){dashManifestModel=(0,_DashManifestModel2.default)(context).getInstance();reset();}// #region PUBLIC FUNCTIONS\n// --------------------------------------------------\nfunction getVoAdaptations(){return voAdaptations;}function getVoPeriods(){return voPeriods;}function setConfig(config){if(!config)return;if(config.constants){constants=config.constants;}if(config.cea608parser){cea608parser=config.cea608parser;}if(config.errHandler){dashManifestModel.setConfig({errHandler:config.errHandler});}if(config.BASE64){dashManifestModel.setConfig({BASE64:config.BASE64});}}function convertRepresentationToRepresentationInfo(voRepresentation){if(voRepresentation){var representationInfo=new _RepresentationInfo2.default();var realAdaptation=voRepresentation.adaptation.period.mpd.manifest.Period_asArray[voRepresentation.adaptation.period.index].AdaptationSet_asArray[voRepresentation.adaptation.index];var realRepresentation=dashManifestModel.getRepresentationFor(voRepresentation.index,realAdaptation);representationInfo.id=voRepresentation.id;representationInfo.quality=voRepresentation.index;representationInfo.bandwidth=dashManifestModel.getBandwidth(realRepresentation);representationInfo.DVRWindow=voRepresentation.segmentAvailabilityRange;representationInfo.fragmentDuration=voRepresentation.segmentDuration||(voRepresentation.segments&&voRepresentation.segments.length>0?voRepresentation.segments[0].duration:NaN);representationInfo.MSETimeOffset=voRepresentation.MSETimeOffset;representationInfo.useCalculatedLiveEdgeTime=voRepresentation.useCalculatedLiveEdgeTime;representationInfo.mediaInfo=convertAdaptationToMediaInfo(voRepresentation.adaptation);return representationInfo;}else{return null;}}function getMediaInfoForType(streamInfo,type){if(voPeriods.length===0||!streamInfo){return null;}var selectedVoPeriod=getPeriodForStreamInfo(streamInfo,voPeriods);if(!selectedVoPeriod)return null;var periodId=selectedVoPeriod.id;voAdaptations[periodId]=voAdaptations[periodId]||dashManifestModel.getAdaptationsForPeriod(selectedVoPeriod);var realAdaptation=getAdaptationForType(streamInfo.index,type,streamInfo);if(!realAdaptation)return null;var idx=dashManifestModel.getIndexForAdaptation(realAdaptation,voPeriods[0].mpd.manifest,streamInfo.index);return convertAdaptationToMediaInfo(voAdaptations[periodId][idx]);}function getIsMain(adaptation){return dashManifestModel.getRolesForAdaptation(adaptation).filter(function(role){return role.value===_DashConstants2.default.MAIN;})[0];}function getAdaptationForType(periodIndex,type,streamInfo){var adaptations=dashManifestModel.getAdaptationsForType(voPeriods[0].mpd.manifest,periodIndex,type);if(!adaptations||adaptations.length===0)return null;if(adaptations.length>1&&streamInfo){var allMediaInfoForType=getAllMediaInfoForType(streamInfo,type);if(currentMediaInfo[streamInfo.id]&&currentMediaInfo[streamInfo.id][type]){for(var i=0,ln=adaptations.length;i<ln;i++){if(currentMediaInfo[streamInfo.id][type].isMediaInfoEqual(allMediaInfoForType[i])){return adaptations[i];}}}for(var _i=0,_ln=adaptations.length;_i<_ln;_i++){if(getIsMain(adaptations[_i])){return adaptations[_i];}}}return adaptations[0];}function getAllMediaInfoForType(streamInfo,type,externalManifest){var voLocalPeriods=voPeriods;var manifest=externalManifest;var mediaArr=[];var data=void 0,media=void 0,idx=void 0,i=void 0,j=void 0,ln=void 0,periodId=void 0;if(manifest){checkConfig();voLocalPeriods=getRegularPeriods(manifest);}else{if(voPeriods.length>0){manifest=voPeriods[0].mpd.manifest;}else{return mediaArr;}}var selectedVoPeriod=getPeriodForStreamInfo(streamInfo,voLocalPeriods);if(selectedVoPeriod){periodId=selectedVoPeriod.id;}var adaptationsForType=dashManifestModel.getAdaptationsForType(manifest,streamInfo?streamInfo.index:null,type!==constants.EMBEDDED_TEXT?type:constants.VIDEO);if(!adaptationsForType||adaptationsForType.length===0)return mediaArr;voAdaptations[periodId]=voAdaptations[periodId]||dashManifestModel.getAdaptationsForPeriod(selectedVoPeriod);for(i=0,ln=adaptationsForType.length;i<ln;i++){data=adaptationsForType[i];idx=dashManifestModel.getIndexForAdaptation(data,manifest,streamInfo.index);media=convertAdaptationToMediaInfo(voAdaptations[periodId][idx]);if(type===constants.EMBEDDED_TEXT){var accessibilityLength=media.accessibility.length;for(j=0;j<accessibilityLength;j++){if(!media){continue;}var accessibility=media.accessibility[j];if(accessibility.indexOf('cea-608:')===0){var value=accessibility.substring(8);var parts=value.split(';');if(parts[0].substring(0,2)==='CC'){for(j=0;j<parts.length;j++){if(!media){media=convertAdaptationToMediaInfo.call(this,voAdaptations[periodId][idx]);}convertVideoInfoToEmbeddedTextInfo(media,parts[j].substring(0,3),parts[j].substring(4));mediaArr.push(media);media=null;}}else{for(j=0;j<parts.length;j++){// Only languages for CC1, CC2, ...\nif(!media){media=convertAdaptationToMediaInfo.call(this,voAdaptations[periodId][idx]);}convertVideoInfoToEmbeddedTextInfo(media,'CC'+(j+1),parts[j]);mediaArr.push(media);media=null;}}}else if(accessibility.indexOf('cea-608')===0){// Nothing known. We interpret it as CC1=eng\nconvertVideoInfoToEmbeddedTextInfo(media,constants.CC1,'eng');mediaArr.push(media);media=null;}}}else if(type===constants.IMAGE){convertVideoInfoToThumbnailInfo(media);mediaArr.push(media);media=null;}else if(media){mediaArr.push(media);}}return mediaArr;}function updatePeriods(newManifest){if(!newManifest)return null;checkConfig();voPeriods=getRegularPeriods(newManifest);voAdaptations={};}function getStreamsInfo(externalManifest,maxStreamsInfo){var streams=[];var voLocalPeriods=voPeriods;//if manifest is defined, getStreamsInfo is for an outside manifest, not the current one\nif(externalManifest){checkConfig();voLocalPeriods=getRegularPeriods(externalManifest);}if(voLocalPeriods.length>0){if(!maxStreamsInfo||maxStreamsInfo>voLocalPeriods.length){maxStreamsInfo=voLocalPeriods.length;}for(var i=0;i<maxStreamsInfo;i++){streams.push(convertPeriodToStreamInfo(voLocalPeriods[i]));}}return streams;}function getRealAdaptation(streamInfo,mediaInfo){var id=void 0,realAdaptation=void 0;var selectedVoPeriod=getPeriodForStreamInfo(streamInfo,voPeriods);id=mediaInfo?mediaInfo.id:null;if(voPeriods.length>0&&selectedVoPeriod){realAdaptation=id?dashManifestModel.getAdaptationForId(id,voPeriods[0].mpd.manifest,selectedVoPeriod.index):dashManifestModel.getAdaptationForIndex(mediaInfo.index,voPeriods[0].mpd.manifest,selectedVoPeriod.index);}return realAdaptation;}function getVoRepresentations(mediaInfo){var voReps=void 0;var voAdaptation=getAdaptationForMediaInfo(mediaInfo);voReps=dashManifestModel.getRepresentationsForAdaptation(voAdaptation);return voReps;}function getEvent(eventBox,eventStreams,startTime){if(!eventBox||!eventStreams){return null;}var event=new _Event2.default();var schemeIdUri=eventBox.scheme_id_uri;var value=eventBox.value;var timescale=eventBox.timescale;var presentationTimeDelta=eventBox.presentation_time_delta;var duration=eventBox.event_duration;var id=eventBox.id;var messageData=eventBox.message_data;var presentationTime=startTime*timescale+presentationTimeDelta;if(!eventStreams[schemeIdUri+'/'+value])return null;event.eventStream=eventStreams[schemeIdUri+'/'+value];event.eventStream.value=value;event.eventStream.timescale=timescale;event.duration=duration;event.id=id;event.presentationTime=presentationTime;event.messageData=messageData;event.presentationTimeDelta=presentationTimeDelta;return event;}function getEventsFor(info,voRepresentation){var events=[];if(voPeriods.length>0){var manifest=voPeriods[0].mpd.manifest;if(info instanceof _StreamInfo2.default){events=dashManifestModel.getEventsForPeriod(getPeriodForStreamInfo(info,voPeriods));}else if(info instanceof _MediaInfo2.default){events=dashManifestModel.getEventStreamForAdaptationSet(manifest,getAdaptationForMediaInfo(info));}else if(info instanceof _RepresentationInfo2.default){events=dashManifestModel.getEventStreamForRepresentation(manifest,voRepresentation);}}return events;}function setCurrentMediaInfo(streamId,type,mediaInfo){currentMediaInfo[streamId]=currentMediaInfo[streamId]||{};currentMediaInfo[streamId][type]=currentMediaInfo[streamId][type]||{};currentMediaInfo[streamId][type]=mediaInfo;}function getIsTextTrack(type){return dashManifestModel.getIsTextTrack(type);}function getUTCTimingSources(){var manifest=getManifest();return dashManifestModel.getUTCTimingSources(manifest);}function getSuggestedPresentationDelay(){var mpd=voPeriods.length>0?voPeriods[0].mpd:null;return dashManifestModel.getSuggestedPresentationDelay(mpd);}function getAvailabilityStartTime(externalManifest){var mpd=getMpd(externalManifest);return dashManifestModel.getAvailabilityStartTime(mpd);}function getIsDynamic(externalManifest){var manifest=getManifest(externalManifest);return dashManifestModel.getIsDynamic(manifest);}function getDuration(externalManifest){var manifest=getManifest(externalManifest);return dashManifestModel.getDuration(manifest);}function getRegularPeriods(externalManifest){var mpd=getMpd(externalManifest);return dashManifestModel.getRegularPeriods(mpd);}function getMpd(externalManifest){var manifest=getManifest(externalManifest);return dashManifestModel.getMpd(manifest);}function getLocation(manifest){return dashManifestModel.getLocation(manifest);}function getManifestUpdatePeriod(manifest){var latencyOfLastUpdate=arguments.length>1&&arguments[1]!==undefined?arguments[1]:0;return dashManifestModel.getManifestUpdatePeriod(manifest,latencyOfLastUpdate);}function getUseCalculatedLiveEdgeTimeForMediaInfo(mediaInfo){var voAdaptation=getAdaptationForMediaInfo(mediaInfo);return dashManifestModel.getUseCalculatedLiveEdgeTimeForAdaptation(voAdaptation);}function getIsDVB(manifest){return dashManifestModel.hasProfile(manifest,PROFILE_DVB);}function getBaseURLsFromElement(node){return dashManifestModel.getBaseURLsFromElement(node);}function getRepresentationSortFunction(){return dashManifestModel.getRepresentationSortFunction();}function getCodec(adaptation,representationId,addResolutionInfo){return dashManifestModel.getCodec(adaptation,representationId,addResolutionInfo);}function getBandwidthForRepresentation(representationId,periodId){var representation=void 0;var period=getPeriod(periodId);representation=findRepresentation(period,representationId);return representation?representation.bandwidth:null;}/**\n     *\n     * @param {string} representationId\n     * @param {number} periodIdx\n     * @returns {*}\n     */function getIndexForRepresentation(representationId,periodIdx){var period=getPeriod(periodIdx);return findRepresentationIndex(period,representationId);}/**\n     * This method returns the current max index based on what is defined in the MPD.\n     *\n     * @param {string} bufferType - String 'audio' or 'video',\n     * @param {number} periodIdx - Make sure this is the period index not id\n     * @return {number}\n     * @memberof module:DashAdapter\n     * @instance\n     */function getMaxIndexForBufferType(bufferType,periodIdx){var period=getPeriod(periodIdx);return findMaxBufferIndex(period,bufferType);}function reset(){voPeriods=[];voAdaptations={};currentMediaInfo={};}// #endregion PUBLIC FUNCTIONS\n// #region PRIVATE FUNCTIONS\n// --------------------------------------------------\nfunction getManifest(externalManifest){return externalManifest?externalManifest:voPeriods.length>0?voPeriods[0].mpd.manifest:null;}function getAdaptationForMediaInfo(mediaInfo){if(!mediaInfo||!mediaInfo.streamInfo||mediaInfo.streamInfo.id===undefined||!voAdaptations[mediaInfo.streamInfo.id])return null;return voAdaptations[mediaInfo.streamInfo.id][mediaInfo.index];}function getPeriodForStreamInfo(streamInfo,voPeriodsArray){var ln=voPeriodsArray.length;for(var i=0;i<ln;i++){var voPeriod=voPeriodsArray[i];if(streamInfo&&streamInfo.id===voPeriod.id)return voPeriod;}return null;}function convertAdaptationToMediaInfo(adaptation){if(!adaptation){return null;}var mediaInfo=new _MediaInfo2.default();var realAdaptation=adaptation.period.mpd.manifest.Period_asArray[adaptation.period.index].AdaptationSet_asArray[adaptation.index];var viewpoint=void 0;mediaInfo.id=adaptation.id;mediaInfo.index=adaptation.index;mediaInfo.type=adaptation.type;mediaInfo.streamInfo=convertPeriodToStreamInfo(adaptation.period);mediaInfo.representationCount=dashManifestModel.getRepresentationCount(realAdaptation);mediaInfo.labels=dashManifestModel.getLabelsForAdaptation(realAdaptation);mediaInfo.lang=dashManifestModel.getLanguageForAdaptation(realAdaptation);viewpoint=dashManifestModel.getViewpointForAdaptation(realAdaptation);mediaInfo.viewpoint=viewpoint?viewpoint.value:undefined;mediaInfo.accessibility=dashManifestModel.getAccessibilityForAdaptation(realAdaptation).map(function(accessibility){var accessibilityValue=accessibility.value;var accessibilityData=accessibilityValue;if(accessibility.schemeIdUri&&accessibility.schemeIdUri.search('cea-608')>=0&&typeof cea608parser!=='undefined'){if(accessibilityValue){accessibilityData='cea-608:'+accessibilityValue;}else{accessibilityData='cea-608';}mediaInfo.embeddedCaptions=true;}return accessibilityData;});mediaInfo.audioChannelConfiguration=dashManifestModel.getAudioChannelConfigurationForAdaptation(realAdaptation).map(function(audioChannelConfiguration){return audioChannelConfiguration.value;});if(mediaInfo.audioChannelConfiguration.length===0&&Array.isArray(realAdaptation.Representation_asArray)&&realAdaptation.Representation_asArray.length>0){mediaInfo.audioChannelConfiguration=dashManifestModel.getAudioChannelConfigurationForRepresentation(realAdaptation.Representation_asArray[0]).map(function(audioChannelConfiguration){return audioChannelConfiguration.value;});}mediaInfo.roles=dashManifestModel.getRolesForAdaptation(realAdaptation).map(function(role){return role.value;});mediaInfo.codec=dashManifestModel.getCodec(realAdaptation);mediaInfo.mimeType=dashManifestModel.getMimeType(realAdaptation);mediaInfo.contentProtection=dashManifestModel.getContentProtectionData(realAdaptation);mediaInfo.bitrateList=dashManifestModel.getBitrateListForAdaptation(realAdaptation);if(mediaInfo.contentProtection){mediaInfo.contentProtection.forEach(function(item){item.KID=dashManifestModel.getKID(item);});}mediaInfo.isText=dashManifestModel.getIsTextTrack(mediaInfo.mimeType);mediaInfo.supplementalProperties=dashManifestModel.getSupplementalPropperties(realAdaptation);return mediaInfo;}function convertVideoInfoToEmbeddedTextInfo(mediaInfo,channel,lang){mediaInfo.id=channel;// CC1, CC2, CC3, or CC4\nmediaInfo.index=100+parseInt(channel.substring(2,3));mediaInfo.type=constants.EMBEDDED_TEXT;mediaInfo.codec='cea-608-in-SEI';mediaInfo.isText=true;mediaInfo.isEmbedded=true;mediaInfo.lang=lang;mediaInfo.roles=['caption'];}function convertVideoInfoToThumbnailInfo(mediaInfo){mediaInfo.type=constants.IMAGE;}function convertPeriodToStreamInfo(period){var streamInfo=new _StreamInfo2.default();var THRESHOLD=1;streamInfo.id=period.id;streamInfo.index=period.index;streamInfo.start=period.start;streamInfo.duration=period.duration;streamInfo.manifestInfo=convertMpdToManifestInfo(period.mpd);streamInfo.isLast=period.mpd.manifest.Period_asArray.length===1||Math.abs(streamInfo.start+streamInfo.duration-streamInfo.manifestInfo.duration)<THRESHOLD;return streamInfo;}function convertMpdToManifestInfo(mpd){var manifestInfo=new _ManifestInfo2.default();manifestInfo.DVRWindowSize=mpd.timeShiftBufferDepth;manifestInfo.loadedTime=mpd.manifest.loadedTime;manifestInfo.availableFrom=mpd.availabilityStartTime;manifestInfo.minBufferTime=mpd.manifest.minBufferTime;manifestInfo.maxFragmentDuration=mpd.maxSegmentDuration;manifestInfo.duration=dashManifestModel.getDuration(mpd.manifest);manifestInfo.isDynamic=dashManifestModel.getIsDynamic(mpd.manifest);manifestInfo.serviceDescriptions=dashManifestModel.getServiceDescriptions(mpd.manifest);return manifestInfo;}function checkConfig(){if(!constants){throw new Error('setConfig function has to be called previously');}}function getPeriod(periodId){return voPeriods.length>0?voPeriods[0].mpd.manifest.Period_asArray[periodId]:null;}function findRepresentationIndex(period,representationId){var index=findRepresentation(period,representationId,true);return index!==null?index:-1;}function findRepresentation(period,representationId,returnIndex){var adaptationSet=void 0,adaptationSetArray=void 0,representation=void 0,representationArray=void 0,adaptationSetArrayIndex=void 0,representationArrayIndex=void 0;if(period){adaptationSetArray=period.AdaptationSet_asArray;for(adaptationSetArrayIndex=0;adaptationSetArrayIndex<adaptationSetArray.length;adaptationSetArrayIndex=adaptationSetArrayIndex+1){adaptationSet=adaptationSetArray[adaptationSetArrayIndex];representationArray=adaptationSet.Representation_asArray;for(representationArrayIndex=0;representationArrayIndex<representationArray.length;representationArrayIndex=representationArrayIndex+1){representation=representationArray[representationArrayIndex];if(representationId===representation.id){if(returnIndex){return representationArrayIndex;}else{return representation;}}}}}return null;}function findMaxBufferIndex(period,bufferType){var adaptationSet=void 0,adaptationSetArray=void 0,representationArray=void 0,adaptationSetArrayIndex=void 0;if(!period||!bufferType)return-1;adaptationSetArray=period.AdaptationSet_asArray;for(adaptationSetArrayIndex=0;adaptationSetArrayIndex<adaptationSetArray.length;adaptationSetArrayIndex=adaptationSetArrayIndex+1){adaptationSet=adaptationSetArray[adaptationSetArrayIndex];representationArray=adaptationSet.Representation_asArray;if(dashManifestModel.getIsTypeOf(adaptationSet,bufferType)){return representationArray.length;}}return-1;}// #endregion PRIVATE FUNCTIONS\ninstance={getBandwidthForRepresentation:getBandwidthForRepresentation,getIndexForRepresentation:getIndexForRepresentation,getMaxIndexForBufferType:getMaxIndexForBufferType,convertDataToRepresentationInfo:convertRepresentationToRepresentationInfo,getDataForMedia:getAdaptationForMediaInfo,getStreamsInfo:getStreamsInfo,getMediaInfoForType:getMediaInfoForType,getAllMediaInfoForType:getAllMediaInfoForType,getAdaptationForType:getAdaptationForType,getRealAdaptation:getRealAdaptation,getVoRepresentations:getVoRepresentations,getEventsFor:getEventsFor,getEvent:getEvent,setConfig:setConfig,updatePeriods:updatePeriods,getUseCalculatedLiveEdgeTimeForMediaInfo:getUseCalculatedLiveEdgeTimeForMediaInfo,getIsTextTrack:getIsTextTrack,getUTCTimingSources:getUTCTimingSources,getSuggestedPresentationDelay:getSuggestedPresentationDelay,getAvailabilityStartTime:getAvailabilityStartTime,getIsDynamic:getIsDynamic,getDuration:getDuration,getRegularPeriods:getRegularPeriods,getLocation:getLocation,getManifestUpdatePeriod:getManifestUpdatePeriod,getIsDVB:getIsDVB,getBaseURLsFromElement:getBaseURLsFromElement,getRepresentationSortFunction:getRepresentationSortFunction,getCodec:getCodec,getVoAdaptations:getVoAdaptations,getVoPeriods:getVoPeriods,setCurrentMediaInfo:setCurrentMediaInfo,reset:reset};setup();return instance;}DashAdapter.__dashjs_factory_name='DashAdapter';exports.default=_FactoryMaker2.default.getSingletonFactory(DashAdapter);\n//# sourceMappingURL=DashAdapter.js.map\n","var freeze = require('./conventions').freeze;\n\n/**\n * The entities that are predefined in every XML document.\n *\n * @see https://www.w3.org/TR/2006/REC-xml11-20060816/#sec-predefined-ent W3C XML 1.1\n * @see https://www.w3.org/TR/2008/REC-xml-20081126/#sec-predefined-ent W3C XML 1.0\n * @see https://en.wikipedia.org/wiki/List_of_XML_and_HTML_character_entity_references#Predefined_entities_in_XML Wikipedia\n */\nexports.XML_ENTITIES = freeze({amp:'&', apos:\"'\", gt:'>', lt:'<', quot:'\"'})\n\n/**\n * A map of currently 241 entities that are detected in an HTML document.\n * They contain all entries from `XML_ENTITIES`.\n *\n * @see XML_ENTITIES\n * @see DOMParser.parseFromString\n * @see DOMImplementation.prototype.createHTMLDocument\n * @see https://html.spec.whatwg.org/#named-character-references WHATWG HTML(5) Spec\n * @see https://www.w3.org/TR/xml-entity-names/ W3C XML Entity Names\n * @see https://www.w3.org/TR/html4/sgml/entities.html W3C HTML4/SGML\n * @see https://en.wikipedia.org/wiki/List_of_XML_and_HTML_character_entity_references#Character_entity_references_in_HTML Wikipedia (HTML)\n * @see https://en.wikipedia.org/wiki/List_of_XML_and_HTML_character_entity_references#Entities_representing_special_characters_in_XHTML Wikpedia (XHTML)\n */\nexports.HTML_ENTITIES = freeze({\n       lt: '<',\n       gt: '>',\n       amp: '&',\n       quot: '\"',\n       apos: \"'\",\n       Agrave: \"À\",\n       Aacute: \"Á\",\n       Acirc: \"Â\",\n       Atilde: \"Ã\",\n       Auml: \"Ä\",\n       Aring: \"Å\",\n       AElig: \"Æ\",\n       Ccedil: \"Ç\",\n       Egrave: \"È\",\n       Eacute: \"É\",\n       Ecirc: \"Ê\",\n       Euml: \"Ë\",\n       Igrave: \"Ì\",\n       Iacute: \"Í\",\n       Icirc: \"Î\",\n       Iuml: \"Ï\",\n       ETH: \"Ð\",\n       Ntilde: \"Ñ\",\n       Ograve: \"Ò\",\n       Oacute: \"Ó\",\n       Ocirc: \"Ô\",\n       Otilde: \"Õ\",\n       Ouml: \"Ö\",\n       Oslash: \"Ø\",\n       Ugrave: \"Ù\",\n       Uacute: \"Ú\",\n       Ucirc: \"Û\",\n       Uuml: \"Ü\",\n       Yacute: \"Ý\",\n       THORN: \"Þ\",\n       szlig: \"ß\",\n       agrave: \"à\",\n       aacute: \"á\",\n       acirc: \"â\",\n       atilde: \"ã\",\n       auml: \"ä\",\n       aring: \"å\",\n       aelig: \"æ\",\n       ccedil: \"ç\",\n       egrave: \"è\",\n       eacute: \"é\",\n       ecirc: \"ê\",\n       euml: \"ë\",\n       igrave: \"ì\",\n       iacute: \"í\",\n       icirc: \"î\",\n       iuml: \"ï\",\n       eth: \"ð\",\n       ntilde: \"ñ\",\n       ograve: \"ò\",\n       oacute: \"ó\",\n       ocirc: \"ô\",\n       otilde: \"õ\",\n       ouml: \"ö\",\n       oslash: \"ø\",\n       ugrave: \"ù\",\n       uacute: \"ú\",\n       ucirc: \"û\",\n       uuml: \"ü\",\n       yacute: \"ý\",\n       thorn: \"þ\",\n       yuml: \"ÿ\",\n       nbsp: \"\\u00a0\",\n       iexcl: \"¡\",\n       cent: \"¢\",\n       pound: \"£\",\n       curren: \"¤\",\n       yen: \"¥\",\n       brvbar: \"¦\",\n       sect: \"§\",\n       uml: \"¨\",\n       copy: \"©\",\n       ordf: \"ª\",\n       laquo: \"«\",\n       not: \"¬\",\n       shy: \"­­\",\n       reg: \"®\",\n       macr: \"¯\",\n       deg: \"°\",\n       plusmn: \"±\",\n       sup2: \"²\",\n       sup3: \"³\",\n       acute: \"´\",\n       micro: \"µ\",\n       para: \"¶\",\n       middot: \"·\",\n       cedil: \"¸\",\n       sup1: \"¹\",\n       ordm: \"º\",\n       raquo: \"»\",\n       frac14: \"¼\",\n       frac12: \"½\",\n       frac34: \"¾\",\n       iquest: \"¿\",\n       times: \"×\",\n       divide: \"÷\",\n       forall: \"∀\",\n       part: \"∂\",\n       exist: \"∃\",\n       empty: \"∅\",\n       nabla: \"∇\",\n       isin: \"∈\",\n       notin: \"∉\",\n       ni: \"∋\",\n       prod: \"∏\",\n       sum: \"∑\",\n       minus: \"−\",\n       lowast: \"∗\",\n       radic: \"√\",\n       prop: \"∝\",\n       infin: \"∞\",\n       ang: \"∠\",\n       and: \"∧\",\n       or: \"∨\",\n       cap: \"∩\",\n       cup: \"∪\",\n       'int': \"∫\",\n       there4: \"∴\",\n       sim: \"∼\",\n       cong: \"≅\",\n       asymp: \"≈\",\n       ne: \"≠\",\n       equiv: \"≡\",\n       le: \"≤\",\n       ge: \"≥\",\n       sub: \"⊂\",\n       sup: \"⊃\",\n       nsub: \"⊄\",\n       sube: \"⊆\",\n       supe: \"⊇\",\n       oplus: \"⊕\",\n       otimes: \"⊗\",\n       perp: \"⊥\",\n       sdot: \"⋅\",\n       Alpha: \"Α\",\n       Beta: \"Β\",\n       Gamma: \"Γ\",\n       Delta: \"Δ\",\n       Epsilon: \"Ε\",\n       Zeta: \"Ζ\",\n       Eta: \"Η\",\n       Theta: \"Θ\",\n       Iota: \"Ι\",\n       Kappa: \"Κ\",\n       Lambda: \"Λ\",\n       Mu: \"Μ\",\n       Nu: \"Ν\",\n       Xi: \"Ξ\",\n       Omicron: \"Ο\",\n       Pi: \"Π\",\n       Rho: \"Ρ\",\n       Sigma: \"Σ\",\n       Tau: \"Τ\",\n       Upsilon: \"Υ\",\n       Phi: \"Φ\",\n       Chi: \"Χ\",\n       Psi: \"Ψ\",\n       Omega: \"Ω\",\n       alpha: \"α\",\n       beta: \"β\",\n       gamma: \"γ\",\n       delta: \"δ\",\n       epsilon: \"ε\",\n       zeta: \"ζ\",\n       eta: \"η\",\n       theta: \"θ\",\n       iota: \"ι\",\n       kappa: \"κ\",\n       lambda: \"λ\",\n       mu: \"μ\",\n       nu: \"ν\",\n       xi: \"ξ\",\n       omicron: \"ο\",\n       pi: \"π\",\n       rho: \"ρ\",\n       sigmaf: \"ς\",\n       sigma: \"σ\",\n       tau: \"τ\",\n       upsilon: \"υ\",\n       phi: \"φ\",\n       chi: \"χ\",\n       psi: \"ψ\",\n       omega: \"ω\",\n       thetasym: \"ϑ\",\n       upsih: \"ϒ\",\n       piv: \"ϖ\",\n       OElig: \"Œ\",\n       oelig: \"œ\",\n       Scaron: \"Š\",\n       scaron: \"š\",\n       Yuml: \"Ÿ\",\n       fnof: \"ƒ\",\n       circ: \"ˆ\",\n       tilde: \"˜\",\n       ensp: \" \",\n       emsp: \" \",\n       thinsp: \" \",\n       zwnj: \"‌\",\n       zwj: \"‍\",\n       lrm: \"‎\",\n       rlm: \"‏\",\n       ndash: \"–\",\n       mdash: \"—\",\n       lsquo: \"‘\",\n       rsquo: \"’\",\n       sbquo: \"‚\",\n       ldquo: \"“\",\n       rdquo: \"”\",\n       bdquo: \"„\",\n       dagger: \"†\",\n       Dagger: \"‡\",\n       bull: \"•\",\n       hellip: \"…\",\n       permil: \"‰\",\n       prime: \"′\",\n       Prime: \"″\",\n       lsaquo: \"‹\",\n       rsaquo: \"›\",\n       oline: \"‾\",\n       euro: \"€\",\n       trade: \"™\",\n       larr: \"←\",\n       uarr: \"↑\",\n       rarr: \"→\",\n       darr: \"↓\",\n       harr: \"↔\",\n       crarr: \"↵\",\n       lceil: \"⌈\",\n       rceil: \"⌉\",\n       lfloor: \"⌊\",\n       rfloor: \"⌋\",\n       loz: \"◊\",\n       spades: \"♠\",\n       clubs: \"♣\",\n       hearts: \"♥\",\n       diams: \"♦\"\n});\n\n/**\n * @deprecated use `HTML_ENTITIES` instead\n * @see HTML_ENTITIES\n */\nexports.entityMap = exports.HTML_ENTITIES\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});function _classCallCheck(instance,Constructor){if(!(instance instanceof Constructor)){throw new TypeError(\"Cannot call a class as a function\");}}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n *//**\n * @classdesc EME-independent KeyMessage\n * @ignore\n */var KeyMessage=/**\n     * @param {SessionToken} sessionToken the session\n     * to which the key message is associated\n     * @param {ArrayBuffer} message the key message\n     * @param {string} defaultURL license acquisition URL provided by the CDM\n     * @param {string} messageType Supported message types can be found\n     * {@link https://w3c.github.io/encrypted-media/#idl-def-MediaKeyMessageType|here}.\n     * @class\n     */function KeyMessage(sessionToken,message,defaultURL,messageType){_classCallCheck(this,KeyMessage);this.sessionToken=sessionToken;this.message=message;this.defaultURL=defaultURL;this.messageType=messageType?messageType:'license-request';};exports.default=KeyMessage;\n//# sourceMappingURL=KeyMessage.js.map\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _FactoryMaker=require('../../core/FactoryMaker');var _FactoryMaker2=_interopRequireDefault(_FactoryMaker);function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}function RequestModifier(){var instance=void 0;function modifyRequestURL(url){return url;}function modifyRequestHeader(request){return request;}instance={modifyRequestURL:modifyRequestURL,modifyRequestHeader:modifyRequestHeader};return instance;}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n */RequestModifier.__dashjs_factory_name='RequestModifier';exports.default=_FactoryMaker2.default.getSingletonFactory(RequestModifier);\n//# sourceMappingURL=RequestModifier.js.map\n","'use strict';\n\nvar utils = require('./../utils');\nvar settle = require('./../core/settle');\nvar cookies = require('./../helpers/cookies');\nvar buildURL = require('./../helpers/buildURL');\nvar buildFullPath = require('../core/buildFullPath');\nvar parseHeaders = require('./../helpers/parseHeaders');\nvar isURLSameOrigin = require('./../helpers/isURLSameOrigin');\nvar createError = require('../core/createError');\n\nmodule.exports = function xhrAdapter(config) {\n  return new Promise(function dispatchXhrRequest(resolve, reject) {\n    var requestData = config.data;\n    var requestHeaders = config.headers;\n\n    if (utils.isFormData(requestData)) {\n      delete requestHeaders['Content-Type']; // Let the browser set it\n    }\n\n    var request = new XMLHttpRequest();\n\n    // HTTP basic authentication\n    if (config.auth) {\n      var username = config.auth.username || '';\n      var password = config.auth.password ? unescape(encodeURIComponent(config.auth.password)) : '';\n      requestHeaders.Authorization = 'Basic ' + btoa(username + ':' + password);\n    }\n\n    var fullPath = buildFullPath(config.baseURL, config.url);\n    request.open(config.method.toUpperCase(), buildURL(fullPath, config.params, config.paramsSerializer), true);\n\n    // Set the request timeout in MS\n    request.timeout = config.timeout;\n\n    // Listen for ready state\n    request.onreadystatechange = function handleLoad() {\n      if (!request || request.readyState !== 4) {\n        return;\n      }\n\n      // The request errored out and we didn't get a response, this will be\n      // handled by onerror instead\n      // With one exception: request that using file: protocol, most browsers\n      // will return status as 0 even though it's a successful request\n      if (request.status === 0 && !(request.responseURL && request.responseURL.indexOf('file:') === 0)) {\n        return;\n      }\n\n      // Prepare the response\n      var responseHeaders = 'getAllResponseHeaders' in request ? parseHeaders(request.getAllResponseHeaders()) : null;\n      var responseData = !config.responseType || config.responseType === 'text' ? request.responseText : request.response;\n      var response = {\n        data: responseData,\n        status: request.status,\n        statusText: request.statusText,\n        headers: responseHeaders,\n        config: config,\n        request: request\n      };\n\n      settle(resolve, reject, response);\n\n      // Clean up request\n      request = null;\n    };\n\n    // Handle browser request cancellation (as opposed to a manual cancellation)\n    request.onabort = function handleAbort() {\n      if (!request) {\n        return;\n      }\n\n      reject(createError('Request aborted', config, 'ECONNABORTED', request));\n\n      // Clean up request\n      request = null;\n    };\n\n    // Handle low level network errors\n    request.onerror = function handleError() {\n      // Real errors are hidden from us by the browser\n      // onerror should only fire if it's a network error\n      reject(createError('Network Error', config, null, request));\n\n      // Clean up request\n      request = null;\n    };\n\n    // Handle timeout\n    request.ontimeout = function handleTimeout() {\n      var timeoutErrorMessage = 'timeout of ' + config.timeout + 'ms exceeded';\n      if (config.timeoutErrorMessage) {\n        timeoutErrorMessage = config.timeoutErrorMessage;\n      }\n      reject(createError(timeoutErrorMessage, config, 'ECONNABORTED',\n        request));\n\n      // Clean up request\n      request = null;\n    };\n\n    // Add xsrf header\n    // This is only done if running in a standard browser environment.\n    // Specifically not if we're in a web worker, or react-native.\n    if (utils.isStandardBrowserEnv()) {\n      // Add xsrf header\n      var xsrfValue = (config.withCredentials || isURLSameOrigin(fullPath)) && config.xsrfCookieName ?\n        cookies.read(config.xsrfCookieName) :\n        undefined;\n\n      if (xsrfValue) {\n        requestHeaders[config.xsrfHeaderName] = xsrfValue;\n      }\n    }\n\n    // Add headers to the request\n    if ('setRequestHeader' in request) {\n      utils.forEach(requestHeaders, function setRequestHeader(val, key) {\n        if (typeof requestData === 'undefined' && key.toLowerCase() === 'content-type') {\n          // Remove Content-Type if data is undefined\n          delete requestHeaders[key];\n        } else {\n          // Otherwise add header to the request\n          request.setRequestHeader(key, val);\n        }\n      });\n    }\n\n    // Add withCredentials to request if needed\n    if (!utils.isUndefined(config.withCredentials)) {\n      request.withCredentials = !!config.withCredentials;\n    }\n\n    // Add responseType to request if needed\n    if (config.responseType) {\n      try {\n        request.responseType = config.responseType;\n      } catch (e) {\n        // Expected DOMException thrown by browsers not compatible XMLHttpRequest Level 2.\n        // But, this can be suppressed for 'json' type as it can be parsed by default 'transformResponse' function.\n        if (config.responseType !== 'json') {\n          throw e;\n        }\n      }\n    }\n\n    // Handle progress if needed\n    if (typeof config.onDownloadProgress === 'function') {\n      request.addEventListener('progress', config.onDownloadProgress);\n    }\n\n    // Not all browsers support upload events\n    if (typeof config.onUploadProgress === 'function' && request.upload) {\n      request.upload.addEventListener('progress', config.onUploadProgress);\n    }\n\n    if (config.cancelToken) {\n      // Handle cancellation\n      config.cancelToken.promise.then(function onCanceled(cancel) {\n        if (!request) {\n          return;\n        }\n\n        request.abort();\n        reject(cancel);\n        // Clean up request\n        request = null;\n      });\n    }\n\n    if (!requestData) {\n      requestData = null;\n    }\n\n    // Send the request\n    request.send(requestData);\n  });\n};\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _Constants=require('./constants/Constants');var _Constants2=_interopRequireDefault(_Constants);var _DashConstants=require('../dash/constants/DashConstants');var _DashConstants2=_interopRequireDefault(_DashConstants);var _BufferController=require('./controllers/BufferController');var _BufferController2=_interopRequireDefault(_BufferController);var _TextBufferController=require('./text/TextBufferController');var _TextBufferController2=_interopRequireDefault(_TextBufferController);var _ScheduleController=require('./controllers/ScheduleController');var _ScheduleController2=_interopRequireDefault(_ScheduleController);var _RepresentationController=require('../dash/controllers/RepresentationController');var _RepresentationController2=_interopRequireDefault(_RepresentationController);var _FactoryMaker=require('../core/FactoryMaker');var _FactoryMaker2=_interopRequireDefault(_FactoryMaker);var _SupervisorTools=require('./utils/SupervisorTools');var _EventBus=require('../core/EventBus');var _EventBus2=_interopRequireDefault(_EventBus);var _Events=require('../core/events/Events');var _Events2=_interopRequireDefault(_Events);var _DashHandler=require('../dash/DashHandler');var _DashHandler2=_interopRequireDefault(_DashHandler);var _Errors=require('../core/errors/Errors');var _Errors2=_interopRequireDefault(_Errors);var _Debug=require('../core/Debug');var _Debug2=_interopRequireDefault(_Debug);var _RequestModifier=require('./utils/RequestModifier');var _RequestModifier2=_interopRequireDefault(_RequestModifier);var _URLUtils=require('../streaming/utils/URLUtils');var _URLUtils2=_interopRequireDefault(_URLUtils);function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}function StreamProcessor(config){config=config||{};var context=this.context;var eventBus=(0,_EventBus2.default)(context).getInstance();var type=config.type;var errHandler=config.errHandler;var mimeType=config.mimeType;var timelineConverter=config.timelineConverter;var adapter=config.adapter;var manifestModel=config.manifestModel;var mediaPlayerModel=config.mediaPlayerModel;var stream=config.stream;var abrController=config.abrController;var playbackController=config.playbackController;var streamController=config.streamController;var mediaController=config.mediaController;var textController=config.textController;var dashMetrics=config.dashMetrics;var settings=config.settings;var boxParser=config.boxParser;var instance=void 0,mediaInfo=void 0,mediaInfoArr=void 0,bufferController=void 0,scheduleController=void 0,representationController=void 0,fragmentModel=void 0,spExternalControllers=void 0,indexHandler=void 0;function setup(){resetInitialSettings();eventBus.on(_Events2.default.BUFFER_LEVEL_UPDATED,onBufferLevelUpdated,instance);eventBus.on(_Events2.default.DATA_UPDATE_COMPLETED,onDataUpdateCompleted,instance);}function initialize(mediaSource){indexHandler=(0,_DashHandler2.default)(context).create({type:type,timelineConverter:timelineConverter,dashMetrics:dashMetrics,mediaPlayerModel:mediaPlayerModel,baseURLController:config.baseURLController,errHandler:errHandler,settings:settings,streamInfo:getStreamInfo(),boxParser:boxParser,events:_Events2.default,eventBus:eventBus,errors:_Errors2.default,debug:(0,_Debug2.default)(context).getInstance(),requestModifier:(0,_RequestModifier2.default)(context).getInstance(),dashConstants:_DashConstants2.default,constants:_Constants2.default,urlUtils:(0,_URLUtils2.default)(context).getInstance()});// initialize controllers\nindexHandler.initialize(playbackController.getIsDynamic());abrController.registerStreamType(type,instance);fragmentModel=stream.getFragmentController().getModel(type);fragmentModel.setStreamProcessor(instance);bufferController=createBufferControllerForType(type);scheduleController=(0,_ScheduleController2.default)(context).create({type:type,mimeType:mimeType,adapter:adapter,dashMetrics:dashMetrics,timelineConverter:timelineConverter,mediaPlayerModel:mediaPlayerModel,abrController:abrController,playbackController:playbackController,streamController:streamController,textController:textController,streamProcessor:instance,mediaController:mediaController,settings:settings});representationController=(0,_RepresentationController2.default)(context).create({abrController:abrController,dashMetrics:dashMetrics,playbackController:playbackController,timelineConverter:timelineConverter,type:type,dashConstants:_DashConstants2.default,streamId:getStreamInfo()?getStreamInfo().id:null,events:_Events2.default,eventBus:eventBus,errors:_Errors2.default});bufferController.initialize(mediaSource);scheduleController.initialize();}function registerExternalController(controller){spExternalControllers.push(controller);}function unregisterExternalController(controller){var index=spExternalControllers.indexOf(controller);if(index!==-1){spExternalControllers.splice(index,1);}}function getExternalControllers(){return spExternalControllers;}function unregisterAllExternalController(){spExternalControllers=[];}function resetInitialSettings(){mediaInfoArr=[];mediaInfo=null;unregisterAllExternalController();}function reset(errored,keepBuffers){indexHandler.reset();if(bufferController){bufferController.reset(errored,keepBuffers);bufferController=null;}if(scheduleController){scheduleController.reset();scheduleController=null;}if(representationController){representationController.reset();representationController=null;}if(abrController){abrController.unRegisterStreamType(type);}spExternalControllers.forEach(function(controller){controller.reset();});eventBus.off(_Events2.default.BUFFER_LEVEL_UPDATED,onBufferLevelUpdated,instance);eventBus.off(_Events2.default.DATA_UPDATE_COMPLETED,onDataUpdateCompleted,instance);resetInitialSettings();type=null;stream=null;}function isUpdating(){return representationController?representationController.isUpdating():false;}function onDataUpdateCompleted(e){var streamInfo=getStreamInfo();var streamInfoId=streamInfo?streamInfo.id:null;if(e.sender.getType()!==getType()||e.sender.getStreamId()!==streamInfoId||!e.error||e.error.code!==_Errors2.default.SEGMENTS_UPDATE_FAILED_ERROR_CODE)return;addDVRMetric();}function onBufferLevelUpdated(e){if(e.sender.getStreamProcessor()!==instance)return;var manifest=manifestModel.getValue();if(!manifest.doNotUpdateDVRWindowOnBufferUpdated){addDVRMetric();}}function addDVRMetric(){var streamInfo=getStreamInfo();var manifestInfo=streamInfo?streamInfo.manifestInfo:null;var isDynamic=manifestInfo?manifestInfo.isDynamic:null;var range=timelineConverter.calcSegmentAvailabilityRange(representationController.getCurrentRepresentation(),isDynamic);dashMetrics.addDVRInfo(getType(),playbackController.getTime(),manifestInfo,range);}function getType(){return type;}function getRepresentationController(){return representationController;}function getBuffer(){return bufferController.getBuffer();}function setBuffer(buffer){bufferController.setBuffer(buffer);}function getBufferController(){return bufferController;}function getFragmentModel(){return fragmentModel;}function getStreamInfo(){return stream?stream.getStreamInfo():null;}function addInbandEvents(events){if(stream){stream.addInbandEvents(events);}}function selectMediaInfo(newMediaInfo){if(newMediaInfo!==mediaInfo&&(!newMediaInfo||!mediaInfo||newMediaInfo.type===mediaInfo.type)){mediaInfo=newMediaInfo;}var streamInfo=getStreamInfo();var newRealAdaptation=adapter.getRealAdaptation(streamInfo,mediaInfo);var voRepresentations=adapter.getVoRepresentations(mediaInfo);if(representationController){var realAdaptation=representationController.getData();var maxQuality=abrController.getTopQualityIndexFor(type,streamInfo?streamInfo.id:null);var minIdx=abrController.getMinAllowedIndexFor(type);var quality=void 0,averageThroughput=void 0;var bitrate=null;if((realAdaptation===null||realAdaptation.id!=newRealAdaptation.id)&&type!==_Constants2.default.FRAGMENTED_TEXT){averageThroughput=abrController.getThroughputHistory().getAverageThroughput(type);bitrate=averageThroughput||abrController.getInitialBitrateFor(type);quality=abrController.getQualityForBitrate(mediaInfo,bitrate);}else{quality=abrController.getQualityFor(type);}if(minIdx!==undefined&&quality<minIdx){quality=minIdx;}if(quality>maxQuality){quality=maxQuality;}indexHandler.setMimeType(mediaInfo?mediaInfo.mimeType:null);representationController.updateData(newRealAdaptation,voRepresentations,type,quality);}}function addMediaInfo(newMediaInfo,selectNewMediaInfo){if(mediaInfoArr.indexOf(newMediaInfo)===-1){mediaInfoArr.push(newMediaInfo);}if(selectNewMediaInfo){this.selectMediaInfo(newMediaInfo);}}function getMediaInfoArr(){return mediaInfoArr;}function getMediaInfo(){return mediaInfo;}function getMediaSource(){return bufferController.getMediaSource();}function setMediaSource(mediaSource){bufferController.setMediaSource(mediaSource,getMediaInfo());}function dischargePreBuffer(){bufferController.dischargePreBuffer();}function getScheduleController(){return scheduleController;}/**\n     * Get a specific voRepresentation. If quality parameter is defined, this function will return the voRepresentation for this quality.\n     * Otherwise, this function will return the current voRepresentation used by the representationController.\n     * @param {number} quality - quality index of the voRepresentaion expected.\n     */function getRepresentationInfo(quality){var voRepresentation=void 0;if(quality!==undefined){(0,_SupervisorTools.checkInteger)(quality);voRepresentation=representationController?representationController.getRepresentationForQuality(quality):null;}else{voRepresentation=representationController?representationController.getCurrentRepresentation():null;}return adapter.convertDataToRepresentationInfo(voRepresentation);}function isBufferingCompleted(){return bufferController?bufferController.getIsBufferingCompleted():false;}function getBufferLevel(){return bufferController?bufferController.getBufferLevel():0;}function switchInitData(representationId,bufferResetEnabled){if(bufferController){var streamInfo=getStreamInfo();bufferController.switchInitData(streamInfo?streamInfo.id:null,representationId,bufferResetEnabled);}}function createBuffer(previousBuffers){return bufferController.getBuffer()||bufferController.createBuffer(mediaInfo,previousBuffers);}function switchTrackAsked(){scheduleController.switchTrackAsked();}function createBufferControllerForType(type){var controller=null;if(type===_Constants2.default.VIDEO||type===_Constants2.default.AUDIO){controller=(0,_BufferController2.default)(context).create({type:type,dashMetrics:dashMetrics,mediaPlayerModel:mediaPlayerModel,manifestModel:manifestModel,errHandler:errHandler,streamController:streamController,mediaController:mediaController,adapter:adapter,textController:textController,abrController:abrController,playbackController:playbackController,streamProcessor:instance,settings:settings});}else{controller=(0,_TextBufferController2.default)(context).create({type:type,mimeType:mimeType,dashMetrics:dashMetrics,mediaPlayerModel:mediaPlayerModel,manifestModel:manifestModel,errHandler:errHandler,streamController:streamController,mediaController:mediaController,adapter:adapter,textController:textController,abrController:abrController,playbackController:playbackController,streamProcessor:instance,settings:settings});}return controller;}function setIndexHandlerTime(value){if(indexHandler){indexHandler.setCurrentTime(value);}}function getIndexHandlerTime(){return indexHandler?indexHandler.getCurrentTime():NaN;}function resetIndexHandler(){if(indexHandler){indexHandler.resetIndex();}}function getInitRequest(quality){(0,_SupervisorTools.checkInteger)(quality);var representation=representationController?representationController.getRepresentationForQuality(quality):null;return indexHandler?indexHandler.getInitRequest(getMediaInfo(),representation):null;}function getFragmentRequest(representationInfo,time,options){var fragRequest=null;if(indexHandler){var representation=representationController&&representationInfo?representationController.getRepresentationForQuality(representationInfo.quality):null;// if time and options are undefined, it means the next segment is requested\n// otherwise, the segment at this specific time is requested.\nif(time!==undefined&&options!==undefined){fragRequest=indexHandler.getSegmentRequestForTime(getMediaInfo(),representation,time,options);}else{fragRequest=indexHandler.getNextSegmentRequest(getMediaInfo(),representation);}}return fragRequest;}instance={initialize:initialize,isUpdating:isUpdating,getType:getType,getBufferController:getBufferController,getFragmentModel:getFragmentModel,getScheduleController:getScheduleController,getRepresentationController:getRepresentationController,getRepresentationInfo:getRepresentationInfo,getBufferLevel:getBufferLevel,switchInitData:switchInitData,isBufferingCompleted:isBufferingCompleted,createBuffer:createBuffer,getStreamInfo:getStreamInfo,selectMediaInfo:selectMediaInfo,addMediaInfo:addMediaInfo,switchTrackAsked:switchTrackAsked,getMediaInfoArr:getMediaInfoArr,getMediaInfo:getMediaInfo,getMediaSource:getMediaSource,setMediaSource:setMediaSource,dischargePreBuffer:dischargePreBuffer,getBuffer:getBuffer,setBuffer:setBuffer,registerExternalController:registerExternalController,unregisterExternalController:unregisterExternalController,getExternalControllers:getExternalControllers,unregisterAllExternalController:unregisterAllExternalController,addInbandEvents:addInbandEvents,setIndexHandlerTime:setIndexHandlerTime,getIndexHandlerTime:getIndexHandlerTime,resetIndexHandler:resetIndexHandler,getInitRequest:getInitRequest,getFragmentRequest:getFragmentRequest,reset:reset};setup();return instance;}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n */StreamProcessor.__dashjs_factory_name='StreamProcessor';exports.default=_FactoryMaker2.default.getClassFactory(StreamProcessor);\n//# sourceMappingURL=StreamProcessor.js.map\n","var global = require('../internals/global');\nvar getOwnPropertyDescriptor = require('../internals/object-get-own-property-descriptor').f;\nvar classof = require('../internals/classof-raw');\nvar macrotask = require('../internals/task').set;\nvar IS_IOS = require('../internals/engine-is-ios');\n\nvar MutationObserver = global.MutationObserver || global.WebKitMutationObserver;\nvar process = global.process;\nvar Promise = global.Promise;\nvar IS_NODE = classof(process) == 'process';\n// Node.js 11 shows ExperimentalWarning on getting `queueMicrotask`\nvar queueMicrotaskDescriptor = getOwnPropertyDescriptor(global, 'queueMicrotask');\nvar queueMicrotask = queueMicrotaskDescriptor && queueMicrotaskDescriptor.value;\n\nvar flush, head, last, notify, toggle, node, promise, then;\n\n// modern engines have queueMicrotask method\nif (!queueMicrotask) {\n  flush = function () {\n    var parent, fn;\n    if (IS_NODE && (parent = process.domain)) parent.exit();\n    while (head) {\n      fn = head.fn;\n      head = head.next;\n      try {\n        fn();\n      } catch (error) {\n        if (head) notify();\n        else last = undefined;\n        throw error;\n      }\n    } last = undefined;\n    if (parent) parent.enter();\n  };\n\n  // Node.js\n  if (IS_NODE) {\n    notify = function () {\n      process.nextTick(flush);\n    };\n  // browsers with MutationObserver, except iOS - https://github.com/zloirock/core-js/issues/339\n  } else if (MutationObserver && !IS_IOS) {\n    toggle = true;\n    node = document.createTextNode('');\n    new MutationObserver(flush).observe(node, { characterData: true });\n    notify = function () {\n      node.data = toggle = !toggle;\n    };\n  // environments with maybe non-completely correct, but existent Promise\n  } else if (Promise && Promise.resolve) {\n    // Promise.resolve without an argument throws an error in LG WebOS 2\n    promise = Promise.resolve(undefined);\n    then = promise.then;\n    notify = function () {\n      then.call(promise, flush);\n    };\n  // for other environments - macrotask based on:\n  // - setImmediate\n  // - MessageChannel\n  // - window.postMessag\n  // - onreadystatechange\n  // - setTimeout\n  } else {\n    notify = function () {\n      // strange IE + webpack dev server bug - use .call(global)\n      macrotask.call(global, flush);\n    };\n  }\n}\n\nmodule.exports = queueMicrotask || function (fn) {\n  var task = { fn: fn, next: undefined };\n  if (last) last.next = task;\n  if (!head) {\n    head = task;\n    notify();\n  } last = task;\n};\n","var global = require('../internals/global');\nvar shared = require('../internals/shared');\nvar has = require('../internals/has');\nvar uid = require('../internals/uid');\nvar NATIVE_SYMBOL = require('../internals/native-symbol');\nvar USE_SYMBOL_AS_UID = require('../internals/use-symbol-as-uid');\n\nvar WellKnownSymbolsStore = shared('wks');\nvar Symbol = global.Symbol;\nvar createWellKnownSymbol = USE_SYMBOL_AS_UID ? Symbol : Symbol && Symbol.withoutSetter || uid;\n\nmodule.exports = function (name) {\n  if (!has(WellKnownSymbolsStore, name)) {\n    if (NATIVE_SYMBOL && has(Symbol, name)) WellKnownSymbolsStore[name] = Symbol[name];\n    else WellKnownSymbolsStore[name] = createWellKnownSymbol('Symbol.' + name);\n  } return WellKnownSymbolsStore[name];\n};\n","/*!\n * The buffer module from node.js, for the browser.\n *\n * @author   Feross Aboukhadijeh <http://feross.org>\n * @license  MIT\n */\n/* eslint-disable no-proto */\n\n'use strict'\n\nvar base64 = require('base64-js')\nvar ieee754 = require('ieee754')\nvar isArray = require('isarray')\n\nexports.Buffer = Buffer\nexports.SlowBuffer = SlowBuffer\nexports.INSPECT_MAX_BYTES = 50\n\n/**\n * If `Buffer.TYPED_ARRAY_SUPPORT`:\n *   === true    Use Uint8Array implementation (fastest)\n *   === false   Use Object implementation (most compatible, even IE6)\n *\n * Browsers that support typed arrays are IE 10+, Firefox 4+, Chrome 7+, Safari 5.1+,\n * Opera 11.6+, iOS 4.2+.\n *\n * Due to various browser bugs, sometimes the Object implementation will be used even\n * when the browser supports typed arrays.\n *\n * Note:\n *\n *   - Firefox 4-29 lacks support for adding new properties to `Uint8Array` instances,\n *     See: https://bugzilla.mozilla.org/show_bug.cgi?id=695438.\n *\n *   - Chrome 9-10 is missing the `TypedArray.prototype.subarray` function.\n *\n *   - IE10 has a broken `TypedArray.prototype.subarray` function which returns arrays of\n *     incorrect length in some situations.\n\n * We detect these buggy browsers and set `Buffer.TYPED_ARRAY_SUPPORT` to `false` so they\n * get the Object implementation, which is slower but behaves correctly.\n */\nBuffer.TYPED_ARRAY_SUPPORT = global.TYPED_ARRAY_SUPPORT !== undefined\n  ? global.TYPED_ARRAY_SUPPORT\n  : typedArraySupport()\n\n/*\n * Export kMaxLength after typed array support is determined.\n */\nexports.kMaxLength = kMaxLength()\n\nfunction typedArraySupport () {\n  try {\n    var arr = new Uint8Array(1)\n    arr.__proto__ = {__proto__: Uint8Array.prototype, foo: function () { return 42 }}\n    return arr.foo() === 42 && // typed array instances can be augmented\n        typeof arr.subarray === 'function' && // chrome 9-10 lack `subarray`\n        arr.subarray(1, 1).byteLength === 0 // ie10 has broken `subarray`\n  } catch (e) {\n    return false\n  }\n}\n\nfunction kMaxLength () {\n  return Buffer.TYPED_ARRAY_SUPPORT\n    ? 0x7fffffff\n    : 0x3fffffff\n}\n\nfunction createBuffer (that, length) {\n  if (kMaxLength() < length) {\n    throw new RangeError('Invalid typed array length')\n  }\n  if (Buffer.TYPED_ARRAY_SUPPORT) {\n    // Return an augmented `Uint8Array` instance, for best performance\n    that = new Uint8Array(length)\n    that.__proto__ = Buffer.prototype\n  } else {\n    // Fallback: Return an object instance of the Buffer class\n    if (that === null) {\n      that = new Buffer(length)\n    }\n    that.length = length\n  }\n\n  return that\n}\n\n/**\n * The Buffer constructor returns instances of `Uint8Array` that have their\n * prototype changed to `Buffer.prototype`. Furthermore, `Buffer` is a subclass of\n * `Uint8Array`, so the returned instances will have all the node `Buffer` methods\n * and the `Uint8Array` methods. Square bracket notation works as expected -- it\n * returns a single octet.\n *\n * The `Uint8Array` prototype remains unmodified.\n */\n\nfunction Buffer (arg, encodingOrOffset, length) {\n  if (!Buffer.TYPED_ARRAY_SUPPORT && !(this instanceof Buffer)) {\n    return new Buffer(arg, encodingOrOffset, length)\n  }\n\n  // Common case.\n  if (typeof arg === 'number') {\n    if (typeof encodingOrOffset === 'string') {\n      throw new Error(\n        'If encoding is specified then the first argument must be a string'\n      )\n    }\n    return allocUnsafe(this, arg)\n  }\n  return from(this, arg, encodingOrOffset, length)\n}\n\nBuffer.poolSize = 8192 // not used by this implementation\n\n// TODO: Legacy, not needed anymore. Remove in next major version.\nBuffer._augment = function (arr) {\n  arr.__proto__ = Buffer.prototype\n  return arr\n}\n\nfunction from (that, value, encodingOrOffset, length) {\n  if (typeof value === 'number') {\n    throw new TypeError('\"value\" argument must not be a number')\n  }\n\n  if (typeof ArrayBuffer !== 'undefined' && value instanceof ArrayBuffer) {\n    return fromArrayBuffer(that, value, encodingOrOffset, length)\n  }\n\n  if (typeof value === 'string') {\n    return fromString(that, value, encodingOrOffset)\n  }\n\n  return fromObject(that, value)\n}\n\n/**\n * Functionally equivalent to Buffer(arg, encoding) but throws a TypeError\n * if value is a number.\n * Buffer.from(str[, encoding])\n * Buffer.from(array)\n * Buffer.from(buffer)\n * Buffer.from(arrayBuffer[, byteOffset[, length]])\n **/\nBuffer.from = function (value, encodingOrOffset, length) {\n  return from(null, value, encodingOrOffset, length)\n}\n\nif (Buffer.TYPED_ARRAY_SUPPORT) {\n  Buffer.prototype.__proto__ = Uint8Array.prototype\n  Buffer.__proto__ = Uint8Array\n  if (typeof Symbol !== 'undefined' && Symbol.species &&\n      Buffer[Symbol.species] === Buffer) {\n    // Fix subarray() in ES2016. See: https://github.com/feross/buffer/pull/97\n    Object.defineProperty(Buffer, Symbol.species, {\n      value: null,\n      configurable: true\n    })\n  }\n}\n\nfunction assertSize (size) {\n  if (typeof size !== 'number') {\n    throw new TypeError('\"size\" argument must be a number')\n  } else if (size < 0) {\n    throw new RangeError('\"size\" argument must not be negative')\n  }\n}\n\nfunction alloc (that, size, fill, encoding) {\n  assertSize(size)\n  if (size <= 0) {\n    return createBuffer(that, size)\n  }\n  if (fill !== undefined) {\n    // Only pay attention to encoding if it's a string. This\n    // prevents accidentally sending in a number that would\n    // be interpretted as a start offset.\n    return typeof encoding === 'string'\n      ? createBuffer(that, size).fill(fill, encoding)\n      : createBuffer(that, size).fill(fill)\n  }\n  return createBuffer(that, size)\n}\n\n/**\n * Creates a new filled Buffer instance.\n * alloc(size[, fill[, encoding]])\n **/\nBuffer.alloc = function (size, fill, encoding) {\n  return alloc(null, size, fill, encoding)\n}\n\nfunction allocUnsafe (that, size) {\n  assertSize(size)\n  that = createBuffer(that, size < 0 ? 0 : checked(size) | 0)\n  if (!Buffer.TYPED_ARRAY_SUPPORT) {\n    for (var i = 0; i < size; ++i) {\n      that[i] = 0\n    }\n  }\n  return that\n}\n\n/**\n * Equivalent to Buffer(num), by default creates a non-zero-filled Buffer instance.\n * */\nBuffer.allocUnsafe = function (size) {\n  return allocUnsafe(null, size)\n}\n/**\n * Equivalent to SlowBuffer(num), by default creates a non-zero-filled Buffer instance.\n */\nBuffer.allocUnsafeSlow = function (size) {\n  return allocUnsafe(null, size)\n}\n\nfunction fromString (that, string, encoding) {\n  if (typeof encoding !== 'string' || encoding === '') {\n    encoding = 'utf8'\n  }\n\n  if (!Buffer.isEncoding(encoding)) {\n    throw new TypeError('\"encoding\" must be a valid string encoding')\n  }\n\n  var length = byteLength(string, encoding) | 0\n  that = createBuffer(that, length)\n\n  var actual = that.write(string, encoding)\n\n  if (actual !== length) {\n    // Writing a hex string, for example, that contains invalid characters will\n    // cause everything after the first invalid character to be ignored. (e.g.\n    // 'abxxcd' will be treated as 'ab')\n    that = that.slice(0, actual)\n  }\n\n  return that\n}\n\nfunction fromArrayLike (that, array) {\n  var length = array.length < 0 ? 0 : checked(array.length) | 0\n  that = createBuffer(that, length)\n  for (var i = 0; i < length; i += 1) {\n    that[i] = array[i] & 255\n  }\n  return that\n}\n\nfunction fromArrayBuffer (that, array, byteOffset, length) {\n  array.byteLength // this throws if `array` is not a valid ArrayBuffer\n\n  if (byteOffset < 0 || array.byteLength < byteOffset) {\n    throw new RangeError('\\'offset\\' is out of bounds')\n  }\n\n  if (array.byteLength < byteOffset + (length || 0)) {\n    throw new RangeError('\\'length\\' is out of bounds')\n  }\n\n  if (byteOffset === undefined && length === undefined) {\n    array = new Uint8Array(array)\n  } else if (length === undefined) {\n    array = new Uint8Array(array, byteOffset)\n  } else {\n    array = new Uint8Array(array, byteOffset, length)\n  }\n\n  if (Buffer.TYPED_ARRAY_SUPPORT) {\n    // Return an augmented `Uint8Array` instance, for best performance\n    that = array\n    that.__proto__ = Buffer.prototype\n  } else {\n    // Fallback: Return an object instance of the Buffer class\n    that = fromArrayLike(that, array)\n  }\n  return that\n}\n\nfunction fromObject (that, obj) {\n  if (Buffer.isBuffer(obj)) {\n    var len = checked(obj.length) | 0\n    that = createBuffer(that, len)\n\n    if (that.length === 0) {\n      return that\n    }\n\n    obj.copy(that, 0, 0, len)\n    return that\n  }\n\n  if (obj) {\n    if ((typeof ArrayBuffer !== 'undefined' &&\n        obj.buffer instanceof ArrayBuffer) || 'length' in obj) {\n      if (typeof obj.length !== 'number' || isnan(obj.length)) {\n        return createBuffer(that, 0)\n      }\n      return fromArrayLike(that, obj)\n    }\n\n    if (obj.type === 'Buffer' && isArray(obj.data)) {\n      return fromArrayLike(that, obj.data)\n    }\n  }\n\n  throw new TypeError('First argument must be a string, Buffer, ArrayBuffer, Array, or array-like object.')\n}\n\nfunction checked (length) {\n  // Note: cannot use `length < kMaxLength()` here because that fails when\n  // length is NaN (which is otherwise coerced to zero.)\n  if (length >= kMaxLength()) {\n    throw new RangeError('Attempt to allocate Buffer larger than maximum ' +\n                         'size: 0x' + kMaxLength().toString(16) + ' bytes')\n  }\n  return length | 0\n}\n\nfunction SlowBuffer (length) {\n  if (+length != length) { // eslint-disable-line eqeqeq\n    length = 0\n  }\n  return Buffer.alloc(+length)\n}\n\nBuffer.isBuffer = function isBuffer (b) {\n  return !!(b != null && b._isBuffer)\n}\n\nBuffer.compare = function compare (a, b) {\n  if (!Buffer.isBuffer(a) || !Buffer.isBuffer(b)) {\n    throw new TypeError('Arguments must be Buffers')\n  }\n\n  if (a === b) return 0\n\n  var x = a.length\n  var y = b.length\n\n  for (var i = 0, len = Math.min(x, y); i < len; ++i) {\n    if (a[i] !== b[i]) {\n      x = a[i]\n      y = b[i]\n      break\n    }\n  }\n\n  if (x < y) return -1\n  if (y < x) return 1\n  return 0\n}\n\nBuffer.isEncoding = function isEncoding (encoding) {\n  switch (String(encoding).toLowerCase()) {\n    case 'hex':\n    case 'utf8':\n    case 'utf-8':\n    case 'ascii':\n    case 'latin1':\n    case 'binary':\n    case 'base64':\n    case 'ucs2':\n    case 'ucs-2':\n    case 'utf16le':\n    case 'utf-16le':\n      return true\n    default:\n      return false\n  }\n}\n\nBuffer.concat = function concat (list, length) {\n  if (!isArray(list)) {\n    throw new TypeError('\"list\" argument must be an Array of Buffers')\n  }\n\n  if (list.length === 0) {\n    return Buffer.alloc(0)\n  }\n\n  var i\n  if (length === undefined) {\n    length = 0\n    for (i = 0; i < list.length; ++i) {\n      length += list[i].length\n    }\n  }\n\n  var buffer = Buffer.allocUnsafe(length)\n  var pos = 0\n  for (i = 0; i < list.length; ++i) {\n    var buf = list[i]\n    if (!Buffer.isBuffer(buf)) {\n      throw new TypeError('\"list\" argument must be an Array of Buffers')\n    }\n    buf.copy(buffer, pos)\n    pos += buf.length\n  }\n  return buffer\n}\n\nfunction byteLength (string, encoding) {\n  if (Buffer.isBuffer(string)) {\n    return string.length\n  }\n  if (typeof ArrayBuffer !== 'undefined' && typeof ArrayBuffer.isView === 'function' &&\n      (ArrayBuffer.isView(string) || string instanceof ArrayBuffer)) {\n    return string.byteLength\n  }\n  if (typeof string !== 'string') {\n    string = '' + string\n  }\n\n  var len = string.length\n  if (len === 0) return 0\n\n  // Use a for loop to avoid recursion\n  var loweredCase = false\n  for (;;) {\n    switch (encoding) {\n      case 'ascii':\n      case 'latin1':\n      case 'binary':\n        return len\n      case 'utf8':\n      case 'utf-8':\n      case undefined:\n        return utf8ToBytes(string).length\n      case 'ucs2':\n      case 'ucs-2':\n      case 'utf16le':\n      case 'utf-16le':\n        return len * 2\n      case 'hex':\n        return len >>> 1\n      case 'base64':\n        return base64ToBytes(string).length\n      default:\n        if (loweredCase) return utf8ToBytes(string).length // assume utf8\n        encoding = ('' + encoding).toLowerCase()\n        loweredCase = true\n    }\n  }\n}\nBuffer.byteLength = byteLength\n\nfunction slowToString (encoding, start, end) {\n  var loweredCase = false\n\n  // No need to verify that \"this.length <= MAX_UINT32\" since it's a read-only\n  // property of a typed array.\n\n  // This behaves neither like String nor Uint8Array in that we set start/end\n  // to their upper/lower bounds if the value passed is out of range.\n  // undefined is handled specially as per ECMA-262 6th Edition,\n  // Section 13.3.3.7 Runtime Semantics: KeyedBindingInitialization.\n  if (start === undefined || start < 0) {\n    start = 0\n  }\n  // Return early if start > this.length. Done here to prevent potential uint32\n  // coercion fail below.\n  if (start > this.length) {\n    return ''\n  }\n\n  if (end === undefined || end > this.length) {\n    end = this.length\n  }\n\n  if (end <= 0) {\n    return ''\n  }\n\n  // Force coersion to uint32. This will also coerce falsey/NaN values to 0.\n  end >>>= 0\n  start >>>= 0\n\n  if (end <= start) {\n    return ''\n  }\n\n  if (!encoding) encoding = 'utf8'\n\n  while (true) {\n    switch (encoding) {\n      case 'hex':\n        return hexSlice(this, start, end)\n\n      case 'utf8':\n      case 'utf-8':\n        return utf8Slice(this, start, end)\n\n      case 'ascii':\n        return asciiSlice(this, start, end)\n\n      case 'latin1':\n      case 'binary':\n        return latin1Slice(this, start, end)\n\n      case 'base64':\n        return base64Slice(this, start, end)\n\n      case 'ucs2':\n      case 'ucs-2':\n      case 'utf16le':\n      case 'utf-16le':\n        return utf16leSlice(this, start, end)\n\n      default:\n        if (loweredCase) throw new TypeError('Unknown encoding: ' + encoding)\n        encoding = (encoding + '').toLowerCase()\n        loweredCase = true\n    }\n  }\n}\n\n// The property is used by `Buffer.isBuffer` and `is-buffer` (in Safari 5-7) to detect\n// Buffer instances.\nBuffer.prototype._isBuffer = true\n\nfunction swap (b, n, m) {\n  var i = b[n]\n  b[n] = b[m]\n  b[m] = i\n}\n\nBuffer.prototype.swap16 = function swap16 () {\n  var len = this.length\n  if (len % 2 !== 0) {\n    throw new RangeError('Buffer size must be a multiple of 16-bits')\n  }\n  for (var i = 0; i < len; i += 2) {\n    swap(this, i, i + 1)\n  }\n  return this\n}\n\nBuffer.prototype.swap32 = function swap32 () {\n  var len = this.length\n  if (len % 4 !== 0) {\n    throw new RangeError('Buffer size must be a multiple of 32-bits')\n  }\n  for (var i = 0; i < len; i += 4) {\n    swap(this, i, i + 3)\n    swap(this, i + 1, i + 2)\n  }\n  return this\n}\n\nBuffer.prototype.swap64 = function swap64 () {\n  var len = this.length\n  if (len % 8 !== 0) {\n    throw new RangeError('Buffer size must be a multiple of 64-bits')\n  }\n  for (var i = 0; i < len; i += 8) {\n    swap(this, i, i + 7)\n    swap(this, i + 1, i + 6)\n    swap(this, i + 2, i + 5)\n    swap(this, i + 3, i + 4)\n  }\n  return this\n}\n\nBuffer.prototype.toString = function toString () {\n  var length = this.length | 0\n  if (length === 0) return ''\n  if (arguments.length === 0) return utf8Slice(this, 0, length)\n  return slowToString.apply(this, arguments)\n}\n\nBuffer.prototype.equals = function equals (b) {\n  if (!Buffer.isBuffer(b)) throw new TypeError('Argument must be a Buffer')\n  if (this === b) return true\n  return Buffer.compare(this, b) === 0\n}\n\nBuffer.prototype.inspect = function inspect () {\n  var str = ''\n  var max = exports.INSPECT_MAX_BYTES\n  if (this.length > 0) {\n    str = this.toString('hex', 0, max).match(/.{2}/g).join(' ')\n    if (this.length > max) str += ' ... '\n  }\n  return '<Buffer ' + str + '>'\n}\n\nBuffer.prototype.compare = function compare (target, start, end, thisStart, thisEnd) {\n  if (!Buffer.isBuffer(target)) {\n    throw new TypeError('Argument must be a Buffer')\n  }\n\n  if (start === undefined) {\n    start = 0\n  }\n  if (end === undefined) {\n    end = target ? target.length : 0\n  }\n  if (thisStart === undefined) {\n    thisStart = 0\n  }\n  if (thisEnd === undefined) {\n    thisEnd = this.length\n  }\n\n  if (start < 0 || end > target.length || thisStart < 0 || thisEnd > this.length) {\n    throw new RangeError('out of range index')\n  }\n\n  if (thisStart >= thisEnd && start >= end) {\n    return 0\n  }\n  if (thisStart >= thisEnd) {\n    return -1\n  }\n  if (start >= end) {\n    return 1\n  }\n\n  start >>>= 0\n  end >>>= 0\n  thisStart >>>= 0\n  thisEnd >>>= 0\n\n  if (this === target) return 0\n\n  var x = thisEnd - thisStart\n  var y = end - start\n  var len = Math.min(x, y)\n\n  var thisCopy = this.slice(thisStart, thisEnd)\n  var targetCopy = target.slice(start, end)\n\n  for (var i = 0; i < len; ++i) {\n    if (thisCopy[i] !== targetCopy[i]) {\n      x = thisCopy[i]\n      y = targetCopy[i]\n      break\n    }\n  }\n\n  if (x < y) return -1\n  if (y < x) return 1\n  return 0\n}\n\n// Finds either the first index of `val` in `buffer` at offset >= `byteOffset`,\n// OR the last index of `val` in `buffer` at offset <= `byteOffset`.\n//\n// Arguments:\n// - buffer - a Buffer to search\n// - val - a string, Buffer, or number\n// - byteOffset - an index into `buffer`; will be clamped to an int32\n// - encoding - an optional encoding, relevant is val is a string\n// - dir - true for indexOf, false for lastIndexOf\nfunction bidirectionalIndexOf (buffer, val, byteOffset, encoding, dir) {\n  // Empty buffer means no match\n  if (buffer.length === 0) return -1\n\n  // Normalize byteOffset\n  if (typeof byteOffset === 'string') {\n    encoding = byteOffset\n    byteOffset = 0\n  } else if (byteOffset > 0x7fffffff) {\n    byteOffset = 0x7fffffff\n  } else if (byteOffset < -0x80000000) {\n    byteOffset = -0x80000000\n  }\n  byteOffset = +byteOffset  // Coerce to Number.\n  if (isNaN(byteOffset)) {\n    // byteOffset: it it's undefined, null, NaN, \"foo\", etc, search whole buffer\n    byteOffset = dir ? 0 : (buffer.length - 1)\n  }\n\n  // Normalize byteOffset: negative offsets start from the end of the buffer\n  if (byteOffset < 0) byteOffset = buffer.length + byteOffset\n  if (byteOffset >= buffer.length) {\n    if (dir) return -1\n    else byteOffset = buffer.length - 1\n  } else if (byteOffset < 0) {\n    if (dir) byteOffset = 0\n    else return -1\n  }\n\n  // Normalize val\n  if (typeof val === 'string') {\n    val = Buffer.from(val, encoding)\n  }\n\n  // Finally, search either indexOf (if dir is true) or lastIndexOf\n  if (Buffer.isBuffer(val)) {\n    // Special case: looking for empty string/buffer always fails\n    if (val.length === 0) {\n      return -1\n    }\n    return arrayIndexOf(buffer, val, byteOffset, encoding, dir)\n  } else if (typeof val === 'number') {\n    val = val & 0xFF // Search for a byte value [0-255]\n    if (Buffer.TYPED_ARRAY_SUPPORT &&\n        typeof Uint8Array.prototype.indexOf === 'function') {\n      if (dir) {\n        return Uint8Array.prototype.indexOf.call(buffer, val, byteOffset)\n      } else {\n        return Uint8Array.prototype.lastIndexOf.call(buffer, val, byteOffset)\n      }\n    }\n    return arrayIndexOf(buffer, [ val ], byteOffset, encoding, dir)\n  }\n\n  throw new TypeError('val must be string, number or Buffer')\n}\n\nfunction arrayIndexOf (arr, val, byteOffset, encoding, dir) {\n  var indexSize = 1\n  var arrLength = arr.length\n  var valLength = val.length\n\n  if (encoding !== undefined) {\n    encoding = String(encoding).toLowerCase()\n    if (encoding === 'ucs2' || encoding === 'ucs-2' ||\n        encoding === 'utf16le' || encoding === 'utf-16le') {\n      if (arr.length < 2 || val.length < 2) {\n        return -1\n      }\n      indexSize = 2\n      arrLength /= 2\n      valLength /= 2\n      byteOffset /= 2\n    }\n  }\n\n  function read (buf, i) {\n    if (indexSize === 1) {\n      return buf[i]\n    } else {\n      return buf.readUInt16BE(i * indexSize)\n    }\n  }\n\n  var i\n  if (dir) {\n    var foundIndex = -1\n    for (i = byteOffset; i < arrLength; i++) {\n      if (read(arr, i) === read(val, foundIndex === -1 ? 0 : i - foundIndex)) {\n        if (foundIndex === -1) foundIndex = i\n        if (i - foundIndex + 1 === valLength) return foundIndex * indexSize\n      } else {\n        if (foundIndex !== -1) i -= i - foundIndex\n        foundIndex = -1\n      }\n    }\n  } else {\n    if (byteOffset + valLength > arrLength) byteOffset = arrLength - valLength\n    for (i = byteOffset; i >= 0; i--) {\n      var found = true\n      for (var j = 0; j < valLength; j++) {\n        if (read(arr, i + j) !== read(val, j)) {\n          found = false\n          break\n        }\n      }\n      if (found) return i\n    }\n  }\n\n  return -1\n}\n\nBuffer.prototype.includes = function includes (val, byteOffset, encoding) {\n  return this.indexOf(val, byteOffset, encoding) !== -1\n}\n\nBuffer.prototype.indexOf = function indexOf (val, byteOffset, encoding) {\n  return bidirectionalIndexOf(this, val, byteOffset, encoding, true)\n}\n\nBuffer.prototype.lastIndexOf = function lastIndexOf (val, byteOffset, encoding) {\n  return bidirectionalIndexOf(this, val, byteOffset, encoding, false)\n}\n\nfunction hexWrite (buf, string, offset, length) {\n  offset = Number(offset) || 0\n  var remaining = buf.length - offset\n  if (!length) {\n    length = remaining\n  } else {\n    length = Number(length)\n    if (length > remaining) {\n      length = remaining\n    }\n  }\n\n  // must be an even number of digits\n  var strLen = string.length\n  if (strLen % 2 !== 0) throw new TypeError('Invalid hex string')\n\n  if (length > strLen / 2) {\n    length = strLen / 2\n  }\n  for (var i = 0; i < length; ++i) {\n    var parsed = parseInt(string.substr(i * 2, 2), 16)\n    if (isNaN(parsed)) return i\n    buf[offset + i] = parsed\n  }\n  return i\n}\n\nfunction utf8Write (buf, string, offset, length) {\n  return blitBuffer(utf8ToBytes(string, buf.length - offset), buf, offset, length)\n}\n\nfunction asciiWrite (buf, string, offset, length) {\n  return blitBuffer(asciiToBytes(string), buf, offset, length)\n}\n\nfunction latin1Write (buf, string, offset, length) {\n  return asciiWrite(buf, string, offset, length)\n}\n\nfunction base64Write (buf, string, offset, length) {\n  return blitBuffer(base64ToBytes(string), buf, offset, length)\n}\n\nfunction ucs2Write (buf, string, offset, length) {\n  return blitBuffer(utf16leToBytes(string, buf.length - offset), buf, offset, length)\n}\n\nBuffer.prototype.write = function write (string, offset, length, encoding) {\n  // Buffer#write(string)\n  if (offset === undefined) {\n    encoding = 'utf8'\n    length = this.length\n    offset = 0\n  // Buffer#write(string, encoding)\n  } else if (length === undefined && typeof offset === 'string') {\n    encoding = offset\n    length = this.length\n    offset = 0\n  // Buffer#write(string, offset[, length][, encoding])\n  } else if (isFinite(offset)) {\n    offset = offset | 0\n    if (isFinite(length)) {\n      length = length | 0\n      if (encoding === undefined) encoding = 'utf8'\n    } else {\n      encoding = length\n      length = undefined\n    }\n  // legacy write(string, encoding, offset, length) - remove in v0.13\n  } else {\n    throw new Error(\n      'Buffer.write(string, encoding, offset[, length]) is no longer supported'\n    )\n  }\n\n  var remaining = this.length - offset\n  if (length === undefined || length > remaining) length = remaining\n\n  if ((string.length > 0 && (length < 0 || offset < 0)) || offset > this.length) {\n    throw new RangeError('Attempt to write outside buffer bounds')\n  }\n\n  if (!encoding) encoding = 'utf8'\n\n  var loweredCase = false\n  for (;;) {\n    switch (encoding) {\n      case 'hex':\n        return hexWrite(this, string, offset, length)\n\n      case 'utf8':\n      case 'utf-8':\n        return utf8Write(this, string, offset, length)\n\n      case 'ascii':\n        return asciiWrite(this, string, offset, length)\n\n      case 'latin1':\n      case 'binary':\n        return latin1Write(this, string, offset, length)\n\n      case 'base64':\n        // Warning: maxLength not taken into account in base64Write\n        return base64Write(this, string, offset, length)\n\n      case 'ucs2':\n      case 'ucs-2':\n      case 'utf16le':\n      case 'utf-16le':\n        return ucs2Write(this, string, offset, length)\n\n      default:\n        if (loweredCase) throw new TypeError('Unknown encoding: ' + encoding)\n        encoding = ('' + encoding).toLowerCase()\n        loweredCase = true\n    }\n  }\n}\n\nBuffer.prototype.toJSON = function toJSON () {\n  return {\n    type: 'Buffer',\n    data: Array.prototype.slice.call(this._arr || this, 0)\n  }\n}\n\nfunction base64Slice (buf, start, end) {\n  if (start === 0 && end === buf.length) {\n    return base64.fromByteArray(buf)\n  } else {\n    return base64.fromByteArray(buf.slice(start, end))\n  }\n}\n\nfunction utf8Slice (buf, start, end) {\n  end = Math.min(buf.length, end)\n  var res = []\n\n  var i = start\n  while (i < end) {\n    var firstByte = buf[i]\n    var codePoint = null\n    var bytesPerSequence = (firstByte > 0xEF) ? 4\n      : (firstByte > 0xDF) ? 3\n      : (firstByte > 0xBF) ? 2\n      : 1\n\n    if (i + bytesPerSequence <= end) {\n      var secondByte, thirdByte, fourthByte, tempCodePoint\n\n      switch (bytesPerSequence) {\n        case 1:\n          if (firstByte < 0x80) {\n            codePoint = firstByte\n          }\n          break\n        case 2:\n          secondByte = buf[i + 1]\n          if ((secondByte & 0xC0) === 0x80) {\n            tempCodePoint = (firstByte & 0x1F) << 0x6 | (secondByte & 0x3F)\n            if (tempCodePoint > 0x7F) {\n              codePoint = tempCodePoint\n            }\n          }\n          break\n        case 3:\n          secondByte = buf[i + 1]\n          thirdByte = buf[i + 2]\n          if ((secondByte & 0xC0) === 0x80 && (thirdByte & 0xC0) === 0x80) {\n            tempCodePoint = (firstByte & 0xF) << 0xC | (secondByte & 0x3F) << 0x6 | (thirdByte & 0x3F)\n            if (tempCodePoint > 0x7FF && (tempCodePoint < 0xD800 || tempCodePoint > 0xDFFF)) {\n              codePoint = tempCodePoint\n            }\n          }\n          break\n        case 4:\n          secondByte = buf[i + 1]\n          thirdByte = buf[i + 2]\n          fourthByte = buf[i + 3]\n          if ((secondByte & 0xC0) === 0x80 && (thirdByte & 0xC0) === 0x80 && (fourthByte & 0xC0) === 0x80) {\n            tempCodePoint = (firstByte & 0xF) << 0x12 | (secondByte & 0x3F) << 0xC | (thirdByte & 0x3F) << 0x6 | (fourthByte & 0x3F)\n            if (tempCodePoint > 0xFFFF && tempCodePoint < 0x110000) {\n              codePoint = tempCodePoint\n            }\n          }\n      }\n    }\n\n    if (codePoint === null) {\n      // we did not generate a valid codePoint so insert a\n      // replacement char (U+FFFD) and advance only 1 byte\n      codePoint = 0xFFFD\n      bytesPerSequence = 1\n    } else if (codePoint > 0xFFFF) {\n      // encode to utf16 (surrogate pair dance)\n      codePoint -= 0x10000\n      res.push(codePoint >>> 10 & 0x3FF | 0xD800)\n      codePoint = 0xDC00 | codePoint & 0x3FF\n    }\n\n    res.push(codePoint)\n    i += bytesPerSequence\n  }\n\n  return decodeCodePointsArray(res)\n}\n\n// Based on http://stackoverflow.com/a/22747272/680742, the browser with\n// the lowest limit is Chrome, with 0x10000 args.\n// We go 1 magnitude less, for safety\nvar MAX_ARGUMENTS_LENGTH = 0x1000\n\nfunction decodeCodePointsArray (codePoints) {\n  var len = codePoints.length\n  if (len <= MAX_ARGUMENTS_LENGTH) {\n    return String.fromCharCode.apply(String, codePoints) // avoid extra slice()\n  }\n\n  // Decode in chunks to avoid \"call stack size exceeded\".\n  var res = ''\n  var i = 0\n  while (i < len) {\n    res += String.fromCharCode.apply(\n      String,\n      codePoints.slice(i, i += MAX_ARGUMENTS_LENGTH)\n    )\n  }\n  return res\n}\n\nfunction asciiSlice (buf, start, end) {\n  var ret = ''\n  end = Math.min(buf.length, end)\n\n  for (var i = start; i < end; ++i) {\n    ret += String.fromCharCode(buf[i] & 0x7F)\n  }\n  return ret\n}\n\nfunction latin1Slice (buf, start, end) {\n  var ret = ''\n  end = Math.min(buf.length, end)\n\n  for (var i = start; i < end; ++i) {\n    ret += String.fromCharCode(buf[i])\n  }\n  return ret\n}\n\nfunction hexSlice (buf, start, end) {\n  var len = buf.length\n\n  if (!start || start < 0) start = 0\n  if (!end || end < 0 || end > len) end = len\n\n  var out = ''\n  for (var i = start; i < end; ++i) {\n    out += toHex(buf[i])\n  }\n  return out\n}\n\nfunction utf16leSlice (buf, start, end) {\n  var bytes = buf.slice(start, end)\n  var res = ''\n  for (var i = 0; i < bytes.length; i += 2) {\n    res += String.fromCharCode(bytes[i] + bytes[i + 1] * 256)\n  }\n  return res\n}\n\nBuffer.prototype.slice = function slice (start, end) {\n  var len = this.length\n  start = ~~start\n  end = end === undefined ? len : ~~end\n\n  if (start < 0) {\n    start += len\n    if (start < 0) start = 0\n  } else if (start > len) {\n    start = len\n  }\n\n  if (end < 0) {\n    end += len\n    if (end < 0) end = 0\n  } else if (end > len) {\n    end = len\n  }\n\n  if (end < start) end = start\n\n  var newBuf\n  if (Buffer.TYPED_ARRAY_SUPPORT) {\n    newBuf = this.subarray(start, end)\n    newBuf.__proto__ = Buffer.prototype\n  } else {\n    var sliceLen = end - start\n    newBuf = new Buffer(sliceLen, undefined)\n    for (var i = 0; i < sliceLen; ++i) {\n      newBuf[i] = this[i + start]\n    }\n  }\n\n  return newBuf\n}\n\n/*\n * Need to make sure that buffer isn't trying to write out of bounds.\n */\nfunction checkOffset (offset, ext, length) {\n  if ((offset % 1) !== 0 || offset < 0) throw new RangeError('offset is not uint')\n  if (offset + ext > length) throw new RangeError('Trying to access beyond buffer length')\n}\n\nBuffer.prototype.readUIntLE = function readUIntLE (offset, byteLength, noAssert) {\n  offset = offset | 0\n  byteLength = byteLength | 0\n  if (!noAssert) checkOffset(offset, byteLength, this.length)\n\n  var val = this[offset]\n  var mul = 1\n  var i = 0\n  while (++i < byteLength && (mul *= 0x100)) {\n    val += this[offset + i] * mul\n  }\n\n  return val\n}\n\nBuffer.prototype.readUIntBE = function readUIntBE (offset, byteLength, noAssert) {\n  offset = offset | 0\n  byteLength = byteLength | 0\n  if (!noAssert) {\n    checkOffset(offset, byteLength, this.length)\n  }\n\n  var val = this[offset + --byteLength]\n  var mul = 1\n  while (byteLength > 0 && (mul *= 0x100)) {\n    val += this[offset + --byteLength] * mul\n  }\n\n  return val\n}\n\nBuffer.prototype.readUInt8 = function readUInt8 (offset, noAssert) {\n  if (!noAssert) checkOffset(offset, 1, this.length)\n  return this[offset]\n}\n\nBuffer.prototype.readUInt16LE = function readUInt16LE (offset, noAssert) {\n  if (!noAssert) checkOffset(offset, 2, this.length)\n  return this[offset] | (this[offset + 1] << 8)\n}\n\nBuffer.prototype.readUInt16BE = function readUInt16BE (offset, noAssert) {\n  if (!noAssert) checkOffset(offset, 2, this.length)\n  return (this[offset] << 8) | this[offset + 1]\n}\n\nBuffer.prototype.readUInt32LE = function readUInt32LE (offset, noAssert) {\n  if (!noAssert) checkOffset(offset, 4, this.length)\n\n  return ((this[offset]) |\n      (this[offset + 1] << 8) |\n      (this[offset + 2] << 16)) +\n      (this[offset + 3] * 0x1000000)\n}\n\nBuffer.prototype.readUInt32BE = function readUInt32BE (offset, noAssert) {\n  if (!noAssert) checkOffset(offset, 4, this.length)\n\n  return (this[offset] * 0x1000000) +\n    ((this[offset + 1] << 16) |\n    (this[offset + 2] << 8) |\n    this[offset + 3])\n}\n\nBuffer.prototype.readIntLE = function readIntLE (offset, byteLength, noAssert) {\n  offset = offset | 0\n  byteLength = byteLength | 0\n  if (!noAssert) checkOffset(offset, byteLength, this.length)\n\n  var val = this[offset]\n  var mul = 1\n  var i = 0\n  while (++i < byteLength && (mul *= 0x100)) {\n    val += this[offset + i] * mul\n  }\n  mul *= 0x80\n\n  if (val >= mul) val -= Math.pow(2, 8 * byteLength)\n\n  return val\n}\n\nBuffer.prototype.readIntBE = function readIntBE (offset, byteLength, noAssert) {\n  offset = offset | 0\n  byteLength = byteLength | 0\n  if (!noAssert) checkOffset(offset, byteLength, this.length)\n\n  var i = byteLength\n  var mul = 1\n  var val = this[offset + --i]\n  while (i > 0 && (mul *= 0x100)) {\n    val += this[offset + --i] * mul\n  }\n  mul *= 0x80\n\n  if (val >= mul) val -= Math.pow(2, 8 * byteLength)\n\n  return val\n}\n\nBuffer.prototype.readInt8 = function readInt8 (offset, noAssert) {\n  if (!noAssert) checkOffset(offset, 1, this.length)\n  if (!(this[offset] & 0x80)) return (this[offset])\n  return ((0xff - this[offset] + 1) * -1)\n}\n\nBuffer.prototype.readInt16LE = function readInt16LE (offset, noAssert) {\n  if (!noAssert) checkOffset(offset, 2, this.length)\n  var val = this[offset] | (this[offset + 1] << 8)\n  return (val & 0x8000) ? val | 0xFFFF0000 : val\n}\n\nBuffer.prototype.readInt16BE = function readInt16BE (offset, noAssert) {\n  if (!noAssert) checkOffset(offset, 2, this.length)\n  var val = this[offset + 1] | (this[offset] << 8)\n  return (val & 0x8000) ? val | 0xFFFF0000 : val\n}\n\nBuffer.prototype.readInt32LE = function readInt32LE (offset, noAssert) {\n  if (!noAssert) checkOffset(offset, 4, this.length)\n\n  return (this[offset]) |\n    (this[offset + 1] << 8) |\n    (this[offset + 2] << 16) |\n    (this[offset + 3] << 24)\n}\n\nBuffer.prototype.readInt32BE = function readInt32BE (offset, noAssert) {\n  if (!noAssert) checkOffset(offset, 4, this.length)\n\n  return (this[offset] << 24) |\n    (this[offset + 1] << 16) |\n    (this[offset + 2] << 8) |\n    (this[offset + 3])\n}\n\nBuffer.prototype.readFloatLE = function readFloatLE (offset, noAssert) {\n  if (!noAssert) checkOffset(offset, 4, this.length)\n  return ieee754.read(this, offset, true, 23, 4)\n}\n\nBuffer.prototype.readFloatBE = function readFloatBE (offset, noAssert) {\n  if (!noAssert) checkOffset(offset, 4, this.length)\n  return ieee754.read(this, offset, false, 23, 4)\n}\n\nBuffer.prototype.readDoubleLE = function readDoubleLE (offset, noAssert) {\n  if (!noAssert) checkOffset(offset, 8, this.length)\n  return ieee754.read(this, offset, true, 52, 8)\n}\n\nBuffer.prototype.readDoubleBE = function readDoubleBE (offset, noAssert) {\n  if (!noAssert) checkOffset(offset, 8, this.length)\n  return ieee754.read(this, offset, false, 52, 8)\n}\n\nfunction checkInt (buf, value, offset, ext, max, min) {\n  if (!Buffer.isBuffer(buf)) throw new TypeError('\"buffer\" argument must be a Buffer instance')\n  if (value > max || value < min) throw new RangeError('\"value\" argument is out of bounds')\n  if (offset + ext > buf.length) throw new RangeError('Index out of range')\n}\n\nBuffer.prototype.writeUIntLE = function writeUIntLE (value, offset, byteLength, noAssert) {\n  value = +value\n  offset = offset | 0\n  byteLength = byteLength | 0\n  if (!noAssert) {\n    var maxBytes = Math.pow(2, 8 * byteLength) - 1\n    checkInt(this, value, offset, byteLength, maxBytes, 0)\n  }\n\n  var mul = 1\n  var i = 0\n  this[offset] = value & 0xFF\n  while (++i < byteLength && (mul *= 0x100)) {\n    this[offset + i] = (value / mul) & 0xFF\n  }\n\n  return offset + byteLength\n}\n\nBuffer.prototype.writeUIntBE = function writeUIntBE (value, offset, byteLength, noAssert) {\n  value = +value\n  offset = offset | 0\n  byteLength = byteLength | 0\n  if (!noAssert) {\n    var maxBytes = Math.pow(2, 8 * byteLength) - 1\n    checkInt(this, value, offset, byteLength, maxBytes, 0)\n  }\n\n  var i = byteLength - 1\n  var mul = 1\n  this[offset + i] = value & 0xFF\n  while (--i >= 0 && (mul *= 0x100)) {\n    this[offset + i] = (value / mul) & 0xFF\n  }\n\n  return offset + byteLength\n}\n\nBuffer.prototype.writeUInt8 = function writeUInt8 (value, offset, noAssert) {\n  value = +value\n  offset = offset | 0\n  if (!noAssert) checkInt(this, value, offset, 1, 0xff, 0)\n  if (!Buffer.TYPED_ARRAY_SUPPORT) value = Math.floor(value)\n  this[offset] = (value & 0xff)\n  return offset + 1\n}\n\nfunction objectWriteUInt16 (buf, value, offset, littleEndian) {\n  if (value < 0) value = 0xffff + value + 1\n  for (var i = 0, j = Math.min(buf.length - offset, 2); i < j; ++i) {\n    buf[offset + i] = (value & (0xff << (8 * (littleEndian ? i : 1 - i)))) >>>\n      (littleEndian ? i : 1 - i) * 8\n  }\n}\n\nBuffer.prototype.writeUInt16LE = function writeUInt16LE (value, offset, noAssert) {\n  value = +value\n  offset = offset | 0\n  if (!noAssert) checkInt(this, value, offset, 2, 0xffff, 0)\n  if (Buffer.TYPED_ARRAY_SUPPORT) {\n    this[offset] = (value & 0xff)\n    this[offset + 1] = (value >>> 8)\n  } else {\n    objectWriteUInt16(this, value, offset, true)\n  }\n  return offset + 2\n}\n\nBuffer.prototype.writeUInt16BE = function writeUInt16BE (value, offset, noAssert) {\n  value = +value\n  offset = offset | 0\n  if (!noAssert) checkInt(this, value, offset, 2, 0xffff, 0)\n  if (Buffer.TYPED_ARRAY_SUPPORT) {\n    this[offset] = (value >>> 8)\n    this[offset + 1] = (value & 0xff)\n  } else {\n    objectWriteUInt16(this, value, offset, false)\n  }\n  return offset + 2\n}\n\nfunction objectWriteUInt32 (buf, value, offset, littleEndian) {\n  if (value < 0) value = 0xffffffff + value + 1\n  for (var i = 0, j = Math.min(buf.length - offset, 4); i < j; ++i) {\n    buf[offset + i] = (value >>> (littleEndian ? i : 3 - i) * 8) & 0xff\n  }\n}\n\nBuffer.prototype.writeUInt32LE = function writeUInt32LE (value, offset, noAssert) {\n  value = +value\n  offset = offset | 0\n  if (!noAssert) checkInt(this, value, offset, 4, 0xffffffff, 0)\n  if (Buffer.TYPED_ARRAY_SUPPORT) {\n    this[offset + 3] = (value >>> 24)\n    this[offset + 2] = (value >>> 16)\n    this[offset + 1] = (value >>> 8)\n    this[offset] = (value & 0xff)\n  } else {\n    objectWriteUInt32(this, value, offset, true)\n  }\n  return offset + 4\n}\n\nBuffer.prototype.writeUInt32BE = function writeUInt32BE (value, offset, noAssert) {\n  value = +value\n  offset = offset | 0\n  if (!noAssert) checkInt(this, value, offset, 4, 0xffffffff, 0)\n  if (Buffer.TYPED_ARRAY_SUPPORT) {\n    this[offset] = (value >>> 24)\n    this[offset + 1] = (value >>> 16)\n    this[offset + 2] = (value >>> 8)\n    this[offset + 3] = (value & 0xff)\n  } else {\n    objectWriteUInt32(this, value, offset, false)\n  }\n  return offset + 4\n}\n\nBuffer.prototype.writeIntLE = function writeIntLE (value, offset, byteLength, noAssert) {\n  value = +value\n  offset = offset | 0\n  if (!noAssert) {\n    var limit = Math.pow(2, 8 * byteLength - 1)\n\n    checkInt(this, value, offset, byteLength, limit - 1, -limit)\n  }\n\n  var i = 0\n  var mul = 1\n  var sub = 0\n  this[offset] = value & 0xFF\n  while (++i < byteLength && (mul *= 0x100)) {\n    if (value < 0 && sub === 0 && this[offset + i - 1] !== 0) {\n      sub = 1\n    }\n    this[offset + i] = ((value / mul) >> 0) - sub & 0xFF\n  }\n\n  return offset + byteLength\n}\n\nBuffer.prototype.writeIntBE = function writeIntBE (value, offset, byteLength, noAssert) {\n  value = +value\n  offset = offset | 0\n  if (!noAssert) {\n    var limit = Math.pow(2, 8 * byteLength - 1)\n\n    checkInt(this, value, offset, byteLength, limit - 1, -limit)\n  }\n\n  var i = byteLength - 1\n  var mul = 1\n  var sub = 0\n  this[offset + i] = value & 0xFF\n  while (--i >= 0 && (mul *= 0x100)) {\n    if (value < 0 && sub === 0 && this[offset + i + 1] !== 0) {\n      sub = 1\n    }\n    this[offset + i] = ((value / mul) >> 0) - sub & 0xFF\n  }\n\n  return offset + byteLength\n}\n\nBuffer.prototype.writeInt8 = function writeInt8 (value, offset, noAssert) {\n  value = +value\n  offset = offset | 0\n  if (!noAssert) checkInt(this, value, offset, 1, 0x7f, -0x80)\n  if (!Buffer.TYPED_ARRAY_SUPPORT) value = Math.floor(value)\n  if (value < 0) value = 0xff + value + 1\n  this[offset] = (value & 0xff)\n  return offset + 1\n}\n\nBuffer.prototype.writeInt16LE = function writeInt16LE (value, offset, noAssert) {\n  value = +value\n  offset = offset | 0\n  if (!noAssert) checkInt(this, value, offset, 2, 0x7fff, -0x8000)\n  if (Buffer.TYPED_ARRAY_SUPPORT) {\n    this[offset] = (value & 0xff)\n    this[offset + 1] = (value >>> 8)\n  } else {\n    objectWriteUInt16(this, value, offset, true)\n  }\n  return offset + 2\n}\n\nBuffer.prototype.writeInt16BE = function writeInt16BE (value, offset, noAssert) {\n  value = +value\n  offset = offset | 0\n  if (!noAssert) checkInt(this, value, offset, 2, 0x7fff, -0x8000)\n  if (Buffer.TYPED_ARRAY_SUPPORT) {\n    this[offset] = (value >>> 8)\n    this[offset + 1] = (value & 0xff)\n  } else {\n    objectWriteUInt16(this, value, offset, false)\n  }\n  return offset + 2\n}\n\nBuffer.prototype.writeInt32LE = function writeInt32LE (value, offset, noAssert) {\n  value = +value\n  offset = offset | 0\n  if (!noAssert) checkInt(this, value, offset, 4, 0x7fffffff, -0x80000000)\n  if (Buffer.TYPED_ARRAY_SUPPORT) {\n    this[offset] = (value & 0xff)\n    this[offset + 1] = (value >>> 8)\n    this[offset + 2] = (value >>> 16)\n    this[offset + 3] = (value >>> 24)\n  } else {\n    objectWriteUInt32(this, value, offset, true)\n  }\n  return offset + 4\n}\n\nBuffer.prototype.writeInt32BE = function writeInt32BE (value, offset, noAssert) {\n  value = +value\n  offset = offset | 0\n  if (!noAssert) checkInt(this, value, offset, 4, 0x7fffffff, -0x80000000)\n  if (value < 0) value = 0xffffffff + value + 1\n  if (Buffer.TYPED_ARRAY_SUPPORT) {\n    this[offset] = (value >>> 24)\n    this[offset + 1] = (value >>> 16)\n    this[offset + 2] = (value >>> 8)\n    this[offset + 3] = (value & 0xff)\n  } else {\n    objectWriteUInt32(this, value, offset, false)\n  }\n  return offset + 4\n}\n\nfunction checkIEEE754 (buf, value, offset, ext, max, min) {\n  if (offset + ext > buf.length) throw new RangeError('Index out of range')\n  if (offset < 0) throw new RangeError('Index out of range')\n}\n\nfunction writeFloat (buf, value, offset, littleEndian, noAssert) {\n  if (!noAssert) {\n    checkIEEE754(buf, value, offset, 4, 3.4028234663852886e+38, -3.4028234663852886e+38)\n  }\n  ieee754.write(buf, value, offset, littleEndian, 23, 4)\n  return offset + 4\n}\n\nBuffer.prototype.writeFloatLE = function writeFloatLE (value, offset, noAssert) {\n  return writeFloat(this, value, offset, true, noAssert)\n}\n\nBuffer.prototype.writeFloatBE = function writeFloatBE (value, offset, noAssert) {\n  return writeFloat(this, value, offset, false, noAssert)\n}\n\nfunction writeDouble (buf, value, offset, littleEndian, noAssert) {\n  if (!noAssert) {\n    checkIEEE754(buf, value, offset, 8, 1.7976931348623157E+308, -1.7976931348623157E+308)\n  }\n  ieee754.write(buf, value, offset, littleEndian, 52, 8)\n  return offset + 8\n}\n\nBuffer.prototype.writeDoubleLE = function writeDoubleLE (value, offset, noAssert) {\n  return writeDouble(this, value, offset, true, noAssert)\n}\n\nBuffer.prototype.writeDoubleBE = function writeDoubleBE (value, offset, noAssert) {\n  return writeDouble(this, value, offset, false, noAssert)\n}\n\n// copy(targetBuffer, targetStart=0, sourceStart=0, sourceEnd=buffer.length)\nBuffer.prototype.copy = function copy (target, targetStart, start, end) {\n  if (!start) start = 0\n  if (!end && end !== 0) end = this.length\n  if (targetStart >= target.length) targetStart = target.length\n  if (!targetStart) targetStart = 0\n  if (end > 0 && end < start) end = start\n\n  // Copy 0 bytes; we're done\n  if (end === start) return 0\n  if (target.length === 0 || this.length === 0) return 0\n\n  // Fatal error conditions\n  if (targetStart < 0) {\n    throw new RangeError('targetStart out of bounds')\n  }\n  if (start < 0 || start >= this.length) throw new RangeError('sourceStart out of bounds')\n  if (end < 0) throw new RangeError('sourceEnd out of bounds')\n\n  // Are we oob?\n  if (end > this.length) end = this.length\n  if (target.length - targetStart < end - start) {\n    end = target.length - targetStart + start\n  }\n\n  var len = end - start\n  var i\n\n  if (this === target && start < targetStart && targetStart < end) {\n    // descending copy from end\n    for (i = len - 1; i >= 0; --i) {\n      target[i + targetStart] = this[i + start]\n    }\n  } else if (len < 1000 || !Buffer.TYPED_ARRAY_SUPPORT) {\n    // ascending copy from start\n    for (i = 0; i < len; ++i) {\n      target[i + targetStart] = this[i + start]\n    }\n  } else {\n    Uint8Array.prototype.set.call(\n      target,\n      this.subarray(start, start + len),\n      targetStart\n    )\n  }\n\n  return len\n}\n\n// Usage:\n//    buffer.fill(number[, offset[, end]])\n//    buffer.fill(buffer[, offset[, end]])\n//    buffer.fill(string[, offset[, end]][, encoding])\nBuffer.prototype.fill = function fill (val, start, end, encoding) {\n  // Handle string cases:\n  if (typeof val === 'string') {\n    if (typeof start === 'string') {\n      encoding = start\n      start = 0\n      end = this.length\n    } else if (typeof end === 'string') {\n      encoding = end\n      end = this.length\n    }\n    if (val.length === 1) {\n      var code = val.charCodeAt(0)\n      if (code < 256) {\n        val = code\n      }\n    }\n    if (encoding !== undefined && typeof encoding !== 'string') {\n      throw new TypeError('encoding must be a string')\n    }\n    if (typeof encoding === 'string' && !Buffer.isEncoding(encoding)) {\n      throw new TypeError('Unknown encoding: ' + encoding)\n    }\n  } else if (typeof val === 'number') {\n    val = val & 255\n  }\n\n  // Invalid ranges are not set to a default, so can range check early.\n  if (start < 0 || this.length < start || this.length < end) {\n    throw new RangeError('Out of range index')\n  }\n\n  if (end <= start) {\n    return this\n  }\n\n  start = start >>> 0\n  end = end === undefined ? this.length : end >>> 0\n\n  if (!val) val = 0\n\n  var i\n  if (typeof val === 'number') {\n    for (i = start; i < end; ++i) {\n      this[i] = val\n    }\n  } else {\n    var bytes = Buffer.isBuffer(val)\n      ? val\n      : utf8ToBytes(new Buffer(val, encoding).toString())\n    var len = bytes.length\n    for (i = 0; i < end - start; ++i) {\n      this[i + start] = bytes[i % len]\n    }\n  }\n\n  return this\n}\n\n// HELPER FUNCTIONS\n// ================\n\nvar INVALID_BASE64_RE = /[^+\\/0-9A-Za-z-_]/g\n\nfunction base64clean (str) {\n  // Node strips out invalid characters like \\n and \\t from the string, base64-js does not\n  str = stringtrim(str).replace(INVALID_BASE64_RE, '')\n  // Node converts strings with length < 2 to ''\n  if (str.length < 2) return ''\n  // Node allows for non-padded base64 strings (missing trailing ===), base64-js does not\n  while (str.length % 4 !== 0) {\n    str = str + '='\n  }\n  return str\n}\n\nfunction stringtrim (str) {\n  if (str.trim) return str.trim()\n  return str.replace(/^\\s+|\\s+$/g, '')\n}\n\nfunction toHex (n) {\n  if (n < 16) return '0' + n.toString(16)\n  return n.toString(16)\n}\n\nfunction utf8ToBytes (string, units) {\n  units = units || Infinity\n  var codePoint\n  var length = string.length\n  var leadSurrogate = null\n  var bytes = []\n\n  for (var i = 0; i < length; ++i) {\n    codePoint = string.charCodeAt(i)\n\n    // is surrogate component\n    if (codePoint > 0xD7FF && codePoint < 0xE000) {\n      // last char was a lead\n      if (!leadSurrogate) {\n        // no lead yet\n        if (codePoint > 0xDBFF) {\n          // unexpected trail\n          if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)\n          continue\n        } else if (i + 1 === length) {\n          // unpaired lead\n          if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)\n          continue\n        }\n\n        // valid lead\n        leadSurrogate = codePoint\n\n        continue\n      }\n\n      // 2 leads in a row\n      if (codePoint < 0xDC00) {\n        if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)\n        leadSurrogate = codePoint\n        continue\n      }\n\n      // valid surrogate pair\n      codePoint = (leadSurrogate - 0xD800 << 10 | codePoint - 0xDC00) + 0x10000\n    } else if (leadSurrogate) {\n      // valid bmp char, but last char was a lead\n      if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)\n    }\n\n    leadSurrogate = null\n\n    // encode utf8\n    if (codePoint < 0x80) {\n      if ((units -= 1) < 0) break\n      bytes.push(codePoint)\n    } else if (codePoint < 0x800) {\n      if ((units -= 2) < 0) break\n      bytes.push(\n        codePoint >> 0x6 | 0xC0,\n        codePoint & 0x3F | 0x80\n      )\n    } else if (codePoint < 0x10000) {\n      if ((units -= 3) < 0) break\n      bytes.push(\n        codePoint >> 0xC | 0xE0,\n        codePoint >> 0x6 & 0x3F | 0x80,\n        codePoint & 0x3F | 0x80\n      )\n    } else if (codePoint < 0x110000) {\n      if ((units -= 4) < 0) break\n      bytes.push(\n        codePoint >> 0x12 | 0xF0,\n        codePoint >> 0xC & 0x3F | 0x80,\n        codePoint >> 0x6 & 0x3F | 0x80,\n        codePoint & 0x3F | 0x80\n      )\n    } else {\n      throw new Error('Invalid code point')\n    }\n  }\n\n  return bytes\n}\n\nfunction asciiToBytes (str) {\n  var byteArray = []\n  for (var i = 0; i < str.length; ++i) {\n    // Node's code seems to be doing this and not & 0x7F..\n    byteArray.push(str.charCodeAt(i) & 0xFF)\n  }\n  return byteArray\n}\n\nfunction utf16leToBytes (str, units) {\n  var c, hi, lo\n  var byteArray = []\n  for (var i = 0; i < str.length; ++i) {\n    if ((units -= 2) < 0) break\n\n    c = str.charCodeAt(i)\n    hi = c >> 8\n    lo = c % 256\n    byteArray.push(lo)\n    byteArray.push(hi)\n  }\n\n  return byteArray\n}\n\nfunction base64ToBytes (str) {\n  return base64.toByteArray(base64clean(str))\n}\n\nfunction blitBuffer (src, dst, offset, length) {\n  for (var i = 0; i < length; ++i) {\n    if ((i + offset >= dst.length) || (i >= src.length)) break\n    dst[i + offset] = src[i]\n  }\n  return i\n}\n\nfunction isnan (val) {\n  return val !== val // eslint-disable-line no-self-compare\n}\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _Metrics=require('../vo/Metrics');var _Metrics2=_interopRequireDefault(_Metrics);var _Range=require('../vo/Range');var _Range2=_interopRequireDefault(_Range);var _Reporting=require('../vo/Reporting');var _Reporting2=_interopRequireDefault(_Reporting);function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}function ManifestParsing(config){config=config||{};var instance=void 0;var adapter=config.adapter;var constants=config.constants;function getMetricsRangeStartTime(manifest,dynamic,range){var voPeriods=void 0,reportingStartTime=void 0;var presentationStartTime=0;if(dynamic){// For services with MPD@type='dynamic', the start time is\n// indicated in wall clock time by adding the value of this\n// attribute to the value of the MPD@availabilityStartTime\n// attribute.\npresentationStartTime=adapter.getAvailabilityStartTime(manifest)/1000;}else{// For services with MPD@type='static', the start time is indicated\n// in Media Presentation time and is relative to the PeriodStart\n// time of the first Period in this MPD.\nvoPeriods=adapter.getRegularPeriods(manifest);if(voPeriods.length){presentationStartTime=voPeriods[0].start;}}// When not present, DASH Metrics collection is\n// requested from the beginning of content\n// consumption.\nreportingStartTime=presentationStartTime;if(range&&range.hasOwnProperty(constants.START_TIME)){reportingStartTime+=range.starttime;}return reportingStartTime;}function getMetrics(manifest){var metrics=[];if(manifest&&manifest.Metrics_asArray){manifest.Metrics_asArray.forEach(function(metric){var metricEntry=new _Metrics2.default();var isDynamic=adapter.getIsDynamic(manifest);if(metric.hasOwnProperty('metrics')){metricEntry.metrics=metric.metrics;}else{return;}if(metric.Range_asArray){metric.Range_asArray.forEach(function(range){var rangeEntry=new _Range2.default();rangeEntry.starttime=getMetricsRangeStartTime(manifest,isDynamic,range);if(range.hasOwnProperty('duration')){rangeEntry.duration=range.duration;}else{// if not present, the value is identical to the\n// Media Presentation duration.\nrangeEntry.duration=adapter.getDuration(manifest);}rangeEntry._useWallClockTime=isDynamic;metricEntry.Range.push(rangeEntry);});}if(metric.Reporting_asArray){metric.Reporting_asArray.forEach(function(reporting){var reportingEntry=new _Reporting2.default();if(reporting.hasOwnProperty(constants.SCHEME_ID_URI)){reportingEntry.schemeIdUri=reporting.schemeIdUri;}else{// Invalid Reporting. schemeIdUri must be set. Ignore.\nreturn;}for(var prop in reporting){if(reporting.hasOwnProperty(prop)){reportingEntry[prop]=reporting[prop];}}metricEntry.Reporting.push(reportingEntry);});}else{// Invalid Metrics. At least one reporting must be present. Ignore\nreturn;}metrics.push(metricEntry);});}return metrics;}instance={getMetrics:getMetrics};return instance;}ManifestParsing.__dashjs_factory_name='ManifestParsing';exports.default=dashjs.FactoryMaker.getSingletonFactory(ManifestParsing);/* jshint ignore:line */\n//# sourceMappingURL=ManifestParsing.js.map\n","var bind = require('../internals/function-bind-context');\nvar IndexedObject = require('../internals/indexed-object');\nvar toObject = require('../internals/to-object');\nvar toLength = require('../internals/to-length');\nvar arraySpeciesCreate = require('../internals/array-species-create');\n\nvar push = [].push;\n\n// `Array.prototype.{ forEach, map, filter, some, every, find, findIndex }` methods implementation\nvar createMethod = function (TYPE) {\n  var IS_MAP = TYPE == 1;\n  var IS_FILTER = TYPE == 2;\n  var IS_SOME = TYPE == 3;\n  var IS_EVERY = TYPE == 4;\n  var IS_FIND_INDEX = TYPE == 6;\n  var NO_HOLES = TYPE == 5 || IS_FIND_INDEX;\n  return function ($this, callbackfn, that, specificCreate) {\n    var O = toObject($this);\n    var self = IndexedObject(O);\n    var boundFunction = bind(callbackfn, that, 3);\n    var length = toLength(self.length);\n    var index = 0;\n    var create = specificCreate || arraySpeciesCreate;\n    var target = IS_MAP ? create($this, length) : IS_FILTER ? create($this, 0) : undefined;\n    var value, result;\n    for (;length > index; index++) if (NO_HOLES || index in self) {\n      value = self[index];\n      result = boundFunction(value, index, O);\n      if (TYPE) {\n        if (IS_MAP) target[index] = result; // map\n        else if (result) switch (TYPE) {\n          case 3: return true;              // some\n          case 5: return value;             // find\n          case 6: return index;             // findIndex\n          case 2: push.call(target, value); // filter\n        } else if (IS_EVERY) return false;  // every\n      }\n    }\n    return IS_FIND_INDEX ? -1 : IS_SOME || IS_EVERY ? IS_EVERY : target;\n  };\n};\n\nmodule.exports = {\n  // `Array.prototype.forEach` method\n  // https://tc39.github.io/ecma262/#sec-array.prototype.foreach\n  forEach: createMethod(0),\n  // `Array.prototype.map` method\n  // https://tc39.github.io/ecma262/#sec-array.prototype.map\n  map: createMethod(1),\n  // `Array.prototype.filter` method\n  // https://tc39.github.io/ecma262/#sec-array.prototype.filter\n  filter: createMethod(2),\n  // `Array.prototype.some` method\n  // https://tc39.github.io/ecma262/#sec-array.prototype.some\n  some: createMethod(3),\n  // `Array.prototype.every` method\n  // https://tc39.github.io/ecma262/#sec-array.prototype.every\n  every: createMethod(4),\n  // `Array.prototype.find` method\n  // https://tc39.github.io/ecma262/#sec-array.prototype.find\n  find: createMethod(5),\n  // `Array.prototype.findIndex` method\n  // https://tc39.github.io/ecma262/#sec-array.prototype.findIndex\n  findIndex: createMethod(6)\n};\n","/* \r\n * Copyright (c) 2016, Pierre-Anthony Lemieux <pal@sandflow.com>\r\n * All rights reserved.\r\n *\r\n * Redistribution and use in source and binary forms, with or without\r\n * modification, are permitted provided that the following conditions are met:\r\n *\r\n * * Redistributions of source code must retain the above copyright notice, this\r\n *   list of conditions and the following disclaimer.\r\n * * Redistributions in binary form must reproduce the above copyright notice,\r\n *   this list of conditions and the following disclaimer in the documentation\r\n *   and/or other materials provided with the distribution.\r\n *\r\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS \"AS IS\"\r\n * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE\r\n * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE\r\n * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE\r\n * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR\r\n * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF\r\n * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS\r\n * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN\r\n * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\r\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\r\n * POSSIBILITY OF SUCH DAMAGE.\r\n */\r\n\r\n/**\r\n * @module imscISD\r\n */\r\n\r\n\r\n;\r\n(function (imscISD, imscNames, imscStyles, imscUtils) { // wrapper for non-node envs\r\n\r\n    /** \r\n     * Creates a canonical representation of an IMSC1 document returned by <pre>imscDoc.fromXML()</pre>\r\n     * at a given absolute offset in seconds. This offset does not have to be one of the values returned\r\n     * by <pre>getMediaTimeEvents()</pre>.\r\n     * \r\n     * @param {Object} tt IMSC1 document\r\n     * @param {number} offset Absolute offset (in seconds)\r\n     * @param {?module:imscUtils.ErrorHandler} errorHandler Error callback\r\n     * @returns {Object} Opaque in-memory representation of an ISD\r\n     */\r\n\r\n    imscISD.generateISD = function (tt, offset, errorHandler) {\r\n\r\n        /* TODO check for tt and offset validity */\r\n\r\n        /* create the ISD object from the IMSC1 doc */\r\n\r\n        var isd = new ISD(tt);\r\n\r\n        /* context */\r\n\r\n        var context = {\r\n\r\n            /*rubyfs: []*/ /* font size of the nearest textContainer or container */\r\n\r\n        };\r\n\r\n        /* process regions */\r\n\r\n        for (var r in tt.head.layout.regions) {\r\n\r\n            /* post-order traversal of the body tree per [construct intermediate document] */\r\n\r\n            var c = isdProcessContentElement(tt, offset, tt.head.layout.regions[r], tt.body, null, '', tt.head.layout.regions[r], errorHandler, context);\r\n\r\n            if (c !== null) {\r\n\r\n                /* add the region to the ISD */\r\n\r\n                isd.contents.push(c.element);\r\n            }\r\n\r\n\r\n        }\r\n\r\n        return isd;\r\n    };\r\n\r\n    /* set of styles not applicable to ruby container spans */\r\n\r\n    var _rcs_na_styles = [\r\n        imscStyles.byName.color.qname,\r\n        imscStyles.byName.textCombine.qname,\r\n        imscStyles.byName.textDecoration.qname,\r\n        imscStyles.byName.textEmphasis.qname,\r\n        imscStyles.byName.textOutline.qname,\r\n        imscStyles.byName.textShadow.qname\r\n    ];\r\n\r\n    function isdProcessContentElement(doc, offset, region, body, parent, inherited_region_id, elem, errorHandler, context) {\r\n\r\n        /* prune if temporally inactive */\r\n\r\n        if (offset < elem.begin || offset >= elem.end) {\r\n            return null;\r\n        }\r\n\r\n        /* \r\n         * set the associated region as specified by the regionID attribute, or the \r\n         * inherited associated region otherwise\r\n         */\r\n\r\n        var associated_region_id = 'regionID' in elem && elem.regionID !== '' ? elem.regionID : inherited_region_id;\r\n\r\n        /* prune the element if either:\r\n         * - the element is not terminal and the associated region is neither the default\r\n         *   region nor the parent region (this allows children to be associated with a \r\n         *   region later on)\r\n         * - the element is terminal and the associated region is not the parent region\r\n         */\r\n\r\n        /* TODO: improve detection of terminal elements since <region> has no contents */\r\n\r\n        if (parent !== null /* are we in the region element */ &&\r\n            associated_region_id !== region.id &&\r\n            (\r\n                (!('contents' in elem)) ||\r\n                ('contents' in elem && elem.contents.length === 0) ||\r\n                associated_region_id !== ''\r\n                )\r\n            )\r\n            return null;\r\n\r\n        /* create an ISD element, including applying specified styles */\r\n\r\n        var isd_element = new ISDContentElement(elem);\r\n\r\n        /* apply set (animation) styling */\r\n\r\n        for (var i in elem.sets) {\r\n\r\n            if (offset < elem.sets[i].begin || offset >= elem.sets[i].end)\r\n                continue;\r\n\r\n            isd_element.styleAttrs[elem.sets[i].qname] = elem.sets[i].value;\r\n\r\n        }\r\n\r\n        /* \r\n         * keep track of specified styling attributes so that we\r\n         * can compute them later\r\n         */\r\n\r\n        var spec_attr = {};\r\n\r\n        for (var qname in isd_element.styleAttrs) {\r\n\r\n            spec_attr[qname] = true;\r\n\r\n            /* special rule for tts:writingMode (section 7.29.1 of XSL)\r\n             * direction is set consistently with writingMode only\r\n             * if writingMode sets inline-direction to LTR or RTL  \r\n             */\r\n\r\n            if (qname === imscStyles.byName.writingMode.qname &&\r\n                !(imscStyles.byName.direction.qname in isd_element.styleAttrs)) {\r\n\r\n                var wm = isd_element.styleAttrs[qname];\r\n\r\n                if (wm === \"lrtb\" || wm === \"lr\") {\r\n\r\n                    isd_element.styleAttrs[imscStyles.byName.direction.qname] = \"ltr\";\r\n\r\n                } else if (wm === \"rltb\" || wm === \"rl\") {\r\n\r\n                    isd_element.styleAttrs[imscStyles.byName.direction.qname] = \"rtl\";\r\n\r\n                }\r\n\r\n            }\r\n        }\r\n\r\n        /* inherited styling */\r\n\r\n        if (parent !== null) {\r\n\r\n            for (var j in imscStyles.all) {\r\n\r\n                var sa = imscStyles.all[j];\r\n\r\n                /* textDecoration has special inheritance rules */\r\n\r\n                if (sa.qname === imscStyles.byName.textDecoration.qname) {\r\n\r\n                    /* handle both textDecoration inheritance and specification */\r\n\r\n                    var ps = parent.styleAttrs[sa.qname];\r\n                    var es = isd_element.styleAttrs[sa.qname];\r\n                    var outs = [];\r\n\r\n                    if (es === undefined) {\r\n\r\n                        outs = ps;\r\n\r\n                    } else if (es.indexOf(\"none\") === -1) {\r\n\r\n                        if ((es.indexOf(\"noUnderline\") === -1 &&\r\n                            ps.indexOf(\"underline\") !== -1) ||\r\n                            es.indexOf(\"underline\") !== -1) {\r\n\r\n                            outs.push(\"underline\");\r\n\r\n                        }\r\n\r\n                        if ((es.indexOf(\"noLineThrough\") === -1 &&\r\n                            ps.indexOf(\"lineThrough\") !== -1) ||\r\n                            es.indexOf(\"lineThrough\") !== -1) {\r\n\r\n                            outs.push(\"lineThrough\");\r\n\r\n                        }\r\n\r\n                        if ((es.indexOf(\"noOverline\") === -1 &&\r\n                            ps.indexOf(\"overline\") !== -1) ||\r\n                            es.indexOf(\"overline\") !== -1) {\r\n\r\n                            outs.push(\"overline\");\r\n\r\n                        }\r\n\r\n                    } else {\r\n\r\n                        outs.push(\"none\");\r\n\r\n                    }\r\n\r\n                    isd_element.styleAttrs[sa.qname] = outs;\r\n\r\n                } else if (sa.qname === imscStyles.byName.fontSize.qname &&\r\n                    !(sa.qname in isd_element.styleAttrs) &&\r\n                    isd_element.kind === 'span' &&\r\n                    isd_element.styleAttrs[imscStyles.byName.ruby.qname] === \"textContainer\") {\r\n                    \r\n                    /* special inheritance rule for ruby text container font size */\r\n                    \r\n                    var ruby_fs = parent.styleAttrs[imscStyles.byName.fontSize.qname];\r\n\r\n                    isd_element.styleAttrs[sa.qname] = new imscUtils.ComputedLength(\r\n                        0.5 * ruby_fs.rw,\r\n                        0.5 * ruby_fs.rh);\r\n\r\n                } else if (sa.qname === imscStyles.byName.fontSize.qname &&\r\n                    !(sa.qname in isd_element.styleAttrs) &&\r\n                    isd_element.kind === 'span' &&\r\n                    isd_element.styleAttrs[imscStyles.byName.ruby.qname] === \"text\") {\r\n                    \r\n                    /* special inheritance rule for ruby text font size */\r\n                    \r\n                    var parent_fs = parent.styleAttrs[imscStyles.byName.fontSize.qname];\r\n                    \r\n                    if (parent.styleAttrs[imscStyles.byName.ruby.qname] === \"textContainer\") {\r\n                        \r\n                        isd_element.styleAttrs[sa.qname] = parent_fs;\r\n                        \r\n                    } else {\r\n                        \r\n                        isd_element.styleAttrs[sa.qname] = new imscUtils.ComputedLength(\r\n                            0.5 * parent_fs.rw,\r\n                            0.5 * parent_fs.rh);\r\n                    }\r\n                    \r\n                } else if (sa.inherit &&\r\n                    (sa.qname in parent.styleAttrs) &&\r\n                    !(sa.qname in isd_element.styleAttrs)) {\r\n\r\n                    isd_element.styleAttrs[sa.qname] = parent.styleAttrs[sa.qname];\r\n\r\n                }\r\n\r\n            }\r\n\r\n        }\r\n\r\n        /* initial value styling */\r\n\r\n        for (var k in imscStyles.all) {\r\n\r\n            var ivs = imscStyles.all[k];\r\n\r\n            /* skip if value is already specified */\r\n\r\n            if (ivs.qname in isd_element.styleAttrs) continue;\r\n\r\n            /* skip tts:position if tts:origin is specified */\r\n\r\n            if (ivs.qname === imscStyles.byName.position.qname &&\r\n                imscStyles.byName.origin.qname in isd_element.styleAttrs)\r\n                continue;\r\n\r\n            /* skip tts:origin if tts:position is specified */\r\n\r\n            if (ivs.qname === imscStyles.byName.origin.qname &&\r\n                imscStyles.byName.position.qname in isd_element.styleAttrs)\r\n                continue;\r\n            \r\n            /* determine initial value */\r\n            \r\n            var iv = doc.head.styling.initials[ivs.qname] || ivs.initial;\r\n\r\n            /* apply initial value to elements other than region only if non-inherited */\r\n\r\n            if (isd_element.kind === 'region' || (ivs.inherit === false && iv !== null)) {\r\n\r\n                isd_element.styleAttrs[ivs.qname] = ivs.parse(iv);\r\n\r\n                /* keep track of the style as specified */\r\n\r\n                spec_attr[ivs.qname] = true;\r\n\r\n            }\r\n\r\n        }\r\n\r\n        /* compute styles (only for non-inherited styles) */\r\n        /* TODO: get rid of spec_attr */\r\n\r\n        for (var z in imscStyles.all) {\r\n\r\n            var cs = imscStyles.all[z];\r\n\r\n            if (!(cs.qname in spec_attr)) continue;\r\n\r\n            if (cs.compute !== null) {\r\n\r\n                var cstyle = cs.compute(\r\n                    /*doc, parent, element, attr, context*/\r\n                    doc,\r\n                    parent,\r\n                    isd_element,\r\n                    isd_element.styleAttrs[cs.qname],\r\n                    context\r\n                    );\r\n\r\n                if (cstyle !== null) {\r\n\r\n                    isd_element.styleAttrs[cs.qname] = cstyle;\r\n                    \r\n                } else {\r\n                    /* if the style cannot be computed, replace it by its initial value */\r\n\r\n                    isd_element.styleAttrs[cs.qname] = cs.compute(\r\n                        /*doc, parent, element, attr, context*/\r\n                        doc,\r\n                        parent,\r\n                        isd_element,\r\n                        cs.parse(cs.initial),\r\n                        context\r\n                    );\r\n\r\n                    reportError(errorHandler, \"Style '\" + cs.qname + \"' on element '\" + isd_element.kind + \"' cannot be computed\");\r\n                }\r\n            }\r\n\r\n        }\r\n\r\n        /* tts:fontSize special ineritance for ruby */\r\n\r\n/*        var isrubycontainer = false;\r\n\r\n        if (isd_element.kind === \"span\") {\r\n\r\n            var rtemp = isd_element.styleAttrs[imscStyles.byName.ruby.qname];\r\n\r\n            if (rtemp === \"container\" || rtemp === \"textContainer\") {\r\n\r\n                isrubycontainer = true;\r\n\r\n                context.rubyfs.unshift(isd_element.styleAttrs[imscStyles.byName.fontSize.qname]);\r\n\r\n            }\r\n\r\n        } */\r\n\r\n        /* prune if tts:display is none */\r\n\r\n        if (isd_element.styleAttrs[imscStyles.byName.display.qname] === \"none\")\r\n            return null;\r\n\r\n        /* process contents of the element */\r\n\r\n        var contents;\r\n\r\n        if (parent === null) {\r\n\r\n            /* we are processing the region */\r\n\r\n            if (body === null) {\r\n\r\n                /* if there is no body, still process the region but with empty content */\r\n\r\n                contents = [];\r\n\r\n            } else {\r\n\r\n                /*use the body element as contents */\r\n\r\n                contents = [body];\r\n\r\n            }\r\n\r\n        } else if ('contents' in elem) {\r\n\r\n            contents = elem.contents;\r\n\r\n        }\r\n\r\n        for (var x in contents) {\r\n\r\n            var c = isdProcessContentElement(doc, offset, region, body, isd_element, associated_region_id, contents[x], errorHandler, context);\r\n\r\n            /* \r\n             * keep child element only if they are non-null and their region match \r\n             * the region of this element\r\n             */\r\n\r\n            if (c !== null) {\r\n\r\n                isd_element.contents.push(c.element);\r\n\r\n            }\r\n\r\n        }\r\n\r\n        /* compute used value of lineHeight=\"normal\" */\r\n\r\n        /*        if (isd_element.styleAttrs[imscStyles.byName.lineHeight.qname] === \"normal\"  ) {\r\n         \r\n         isd_element.styleAttrs[imscStyles.byName.lineHeight.qname] =\r\n         isd_element.styleAttrs[imscStyles.byName.fontSize.qname] * 1.2;\r\n         \r\n         }\r\n         */\r\n\r\n        /* tts:fontSize special ineritance for ruby */\r\n\r\n        /*if (isrubycontainer) {\r\n\r\n            context.rubyfs.shift();\r\n\r\n        }*/\r\n\r\n        /* remove styles that are not applicable */\r\n\r\n        for (var qnameb in isd_element.styleAttrs) {\r\n\r\n            /* true if not applicable */\r\n\r\n            var na = false;\r\n\r\n            /* special applicability of certain style properties to ruby container spans */\r\n            /* TODO: in the future ruby elements should be translated to elements instead of kept as spans */\r\n\r\n            if (isd_element.kind === 'span') {\r\n\r\n                var rsp = isd_element.styleAttrs[imscStyles.byName.ruby.qname];\r\n\r\n                na = ( rsp === 'container' || rsp === 'textContainer' || rsp === 'baseContainer' ) && \r\n                    _rcs_na_styles.indexOf(qnameb) !== -1;\r\n\r\n                if (! na) {\r\n\r\n                    na = rsp !== 'container' &&\r\n                        qnameb === imscStyles.byName.rubyAlign.qname;\r\n\r\n                }\r\n\r\n                if (! na) {\r\n\r\n                    na =  (! (rsp === 'textContainer' || rsp === 'text')) &&\r\n                        qnameb === imscStyles.byName.rubyPosition.qname;\r\n\r\n                }\r\n\r\n            }\r\n\r\n            /* normal applicability */\r\n            \r\n            if (! na) {\r\n\r\n                var da = imscStyles.byQName[qnameb];\r\n                na = da.applies.indexOf(isd_element.kind) === -1;\r\n\r\n            }\r\n\r\n\r\n            if (na) {\r\n                delete isd_element.styleAttrs[qnameb];\r\n            }\r\n\r\n        }\r\n\r\n        /* collapse white space if space is \"default\" */\r\n\r\n        if (isd_element.kind === 'span' && isd_element.text && isd_element.space === \"default\") {\r\n\r\n            var trimmedspan = isd_element.text.replace(/[\\t\\r\\n ]+/g, ' ');\r\n\r\n            isd_element.text = trimmedspan;\r\n\r\n        }\r\n\r\n        /* trim whitespace around explicit line breaks */\r\n\r\n        if (isd_element.kind === 'p') {\r\n\r\n            var elist = [];\r\n\r\n            constructSpanList(isd_element, elist);\r\n\r\n            var l = 0;\r\n\r\n            var state = \"after_br\";\r\n            var br_pos = 0;\r\n\r\n            while (true) {\r\n\r\n                if (state === \"after_br\") {\r\n\r\n                    if (l >= elist.length || elist[l].kind === \"br\") {\r\n\r\n                        state = \"before_br\";\r\n                        br_pos = l;\r\n                        l--;\r\n\r\n                    } else {\r\n\r\n                        if (elist[l].space !== \"preserve\") {\r\n\r\n                            elist[l].text = elist[l].text.replace(/^[\\t\\r\\n ]+/g, '');\r\n\r\n                        }\r\n\r\n                        if (elist[l].text.length > 0) {\r\n\r\n                            state = \"looking_br\";\r\n                            l++;\r\n\r\n                        } else {\r\n\r\n                            elist.splice(l, 1);\r\n\r\n                        }\r\n\r\n                    }\r\n\r\n                } else if (state === \"before_br\") {\r\n\r\n                    if (l < 0 || elist[l].kind === \"br\") {\r\n\r\n                        state = \"after_br\";\r\n                        l = br_pos + 1;\r\n\r\n                        if (l >= elist.length) break;\r\n\r\n                    } else {\r\n\r\n                        if (elist[l].space !== \"preserve\") {\r\n\r\n                            elist[l].text = elist[l].text.replace(/[\\t\\r\\n ]+$/g, '');\r\n\r\n                        }\r\n\r\n                        if (elist[l].text.length > 0) {\r\n\r\n                            state = \"after_br\";\r\n                            l = br_pos + 1;\r\n\r\n                            if (l >= elist.length) break;\r\n\r\n                        } else {\r\n\r\n                            elist.splice(l, 1);\r\n                            l--;\r\n\r\n                        }\r\n\r\n                    }\r\n\r\n                } else {\r\n\r\n                    if (l >= elist.length || elist[l].kind === \"br\") {\r\n\r\n                        state = \"before_br\";\r\n                        br_pos = l;\r\n                        l--;\r\n\r\n                    } else {\r\n\r\n                        l++;\r\n\r\n                    }\r\n\r\n                }\r\n\r\n            }\r\n\r\n            pruneEmptySpans(isd_element);\r\n\r\n        }\r\n\r\n        /* keep element if:\r\n         * * contains a background image\r\n         * * <br/>\r\n         * * if there are children\r\n         * * if it is an image\r\n         * * if <span> and has text\r\n         * * if region and showBackground = always\r\n         */\r\n\r\n        if ((isd_element.kind === 'div' && imscStyles.byName.backgroundImage.qname in isd_element.styleAttrs) ||\r\n            isd_element.kind === 'br' ||\r\n            isd_element.kind === 'image' ||\r\n            ('contents' in isd_element && isd_element.contents.length > 0) ||\r\n            (isd_element.kind === 'span' && isd_element.text !== null) ||\r\n            (isd_element.kind === 'region' &&\r\n                isd_element.styleAttrs[imscStyles.byName.showBackground.qname] === 'always')) {\r\n\r\n            return {\r\n                region_id: associated_region_id,\r\n                element: isd_element\r\n            };\r\n        }\r\n\r\n        return null;\r\n    }\r\n\r\n    function constructSpanList(element, elist) {\r\n\r\n        if ('contents' in element) {\r\n\r\n            for (var i in element.contents) {\r\n                constructSpanList(element.contents[i], elist);\r\n            }\r\n\r\n        } else if (element.kind === 'span' || element.kind === 'br') {\r\n\r\n            elist.push(element);\r\n\r\n        }\r\n\r\n    }\r\n\r\n    function pruneEmptySpans(element) {\r\n\r\n        if (element.kind === 'br') {\r\n\r\n            return false;\r\n\r\n        } else if ('text' in element) {\r\n\r\n            return  element.text.length === 0;\r\n\r\n        } else if ('contents' in element) {\r\n\r\n            var i = element.contents.length;\r\n\r\n            while (i--) {\r\n\r\n                if (pruneEmptySpans(element.contents[i])) {\r\n                    element.contents.splice(i, 1);\r\n                }\r\n\r\n            }\r\n\r\n            return element.contents.length === 0;\r\n\r\n        }\r\n    }\r\n\r\n    function ISD(tt) {\r\n        this.contents = [];\r\n        this.aspectRatio = tt.aspectRatio;\r\n    }\r\n\r\n    function ISDContentElement(ttelem) {\r\n\r\n        /* assume the element is a region if it does not have a kind */\r\n\r\n        this.kind = ttelem.kind || 'region';\r\n\r\n        /* copy id */\r\n\r\n        if (ttelem.id) {\r\n            this.id = ttelem.id;\r\n        }\r\n\r\n        /* deep copy of style attributes */\r\n        this.styleAttrs = {};\r\n\r\n        for (var sname in ttelem.styleAttrs) {\r\n\r\n            this.styleAttrs[sname] =\r\n                ttelem.styleAttrs[sname];\r\n        }\r\n        \r\n        /* copy src and type if image */\r\n        \r\n        if ('src' in ttelem) {\r\n            \r\n            this.src = ttelem.src;\r\n            \r\n        }\r\n        \r\n         if ('type' in ttelem) {\r\n            \r\n            this.type = ttelem.type;\r\n            \r\n        }\r\n\r\n        /* TODO: clean this! \r\n         * TODO: ISDElement and document element should be better tied together */\r\n\r\n        if ('text' in ttelem) {\r\n\r\n            this.text = ttelem.text;\r\n\r\n        } else if (this.kind === 'region' || 'contents' in ttelem) {\r\n\r\n            this.contents = [];\r\n        }\r\n\r\n        if ('space' in ttelem) {\r\n\r\n            this.space = ttelem.space;\r\n        }\r\n    }\r\n\r\n\r\n    /*\r\n     * ERROR HANDLING UTILITY FUNCTIONS\r\n     * \r\n     */\r\n\r\n    function reportInfo(errorHandler, msg) {\r\n\r\n        if (errorHandler && errorHandler.info && errorHandler.info(msg))\r\n            throw msg;\r\n\r\n    }\r\n\r\n    function reportWarning(errorHandler, msg) {\r\n\r\n        if (errorHandler && errorHandler.warn && errorHandler.warn(msg))\r\n            throw msg;\r\n\r\n    }\r\n\r\n    function reportError(errorHandler, msg) {\r\n\r\n        if (errorHandler && errorHandler.error && errorHandler.error(msg))\r\n            throw msg;\r\n\r\n    }\r\n\r\n    function reportFatal(errorHandler, msg) {\r\n\r\n        if (errorHandler && errorHandler.fatal)\r\n            errorHandler.fatal(msg);\r\n\r\n        throw msg;\r\n\r\n    }\r\n\r\n\r\n})(typeof exports === 'undefined' ? this.imscISD = {} : exports,\r\n    typeof imscNames === 'undefined' ? require(\"./names\") : imscNames,\r\n    typeof imscStyles === 'undefined' ? require(\"./styles\") : imscStyles,\r\n    typeof imscUtils === 'undefined' ? require(\"./utils\") : imscUtils\r\n    );\r\n","\n/**\n * Module exports.\n */\n\nmodule.exports = deprecate;\n\n/**\n * Mark that a method should not be used.\n * Returns a modified function which warns once by default.\n *\n * If `localStorage.noDeprecation = true` is set, then it is a no-op.\n *\n * If `localStorage.throwDeprecation = true` is set, then deprecated functions\n * will throw an Error when invoked.\n *\n * If `localStorage.traceDeprecation = true` is set, then deprecated functions\n * will invoke `console.trace()` instead of `console.error()`.\n *\n * @param {Function} fn - the function to deprecate\n * @param {String} msg - the string to print to the console when `fn` is invoked\n * @returns {Function} a new \"deprecated\" version of `fn`\n * @api public\n */\n\nfunction deprecate (fn, msg) {\n  if (config('noDeprecation')) {\n    return fn;\n  }\n\n  var warned = false;\n  function deprecated() {\n    if (!warned) {\n      if (config('throwDeprecation')) {\n        throw new Error(msg);\n      } else if (config('traceDeprecation')) {\n        console.trace(msg);\n      } else {\n        console.warn(msg);\n      }\n      warned = true;\n    }\n    return fn.apply(this, arguments);\n  }\n\n  return deprecated;\n}\n\n/**\n * Checks `localStorage` for boolean values for the given `name`.\n *\n * @param {String} name\n * @returns {Boolean}\n * @api private\n */\n\nfunction config (name) {\n  // accessing global.localStorage can trigger a DOMException in sandboxed iframes\n  try {\n    if (!global.localStorage) return false;\n  } catch (_) {\n    return false;\n  }\n  var val = global.localStorage[name];\n  if (null == val) return false;\n  return String(val).toLowerCase() === 'true';\n}\n","export default function _arrayLikeToArray(arr, len) {\n  if (len == null || len > arr.length) len = arr.length;\n\n  for (var i = 0, arr2 = new Array(len); i < len; i++) {\n    arr2[i] = arr[i];\n  }\n\n  return arr2;\n}","import arrayLikeToArray from \"./arrayLikeToArray\";\nexport default function _unsupportedIterableToArray(o, minLen) {\n  if (!o) return;\n  if (typeof o === \"string\") return arrayLikeToArray(o, minLen);\n  var n = Object.prototype.toString.call(o).slice(8, -1);\n  if (n === \"Object\" && o.constructor) n = o.constructor.name;\n  if (n === \"Map\" || n === \"Set\") return Array.from(o);\n  if (n === \"Arguments\" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return arrayLikeToArray(o, minLen);\n}","import unsupportedIterableToArray from \"./unsupportedIterableToArray\";\nexport default function _createForOfIteratorHelper(o) {\n  if (typeof Symbol === \"undefined\" || o[Symbol.iterator] == null) {\n    if (Array.isArray(o) || (o = unsupportedIterableToArray(o))) {\n      var i = 0;\n\n      var F = function F() {};\n\n      return {\n        s: F,\n        n: function n() {\n          if (i >= o.length) return {\n            done: true\n          };\n          return {\n            done: false,\n            value: o[i++]\n          };\n        },\n        e: function e(_e) {\n          throw _e;\n        },\n        f: F\n      };\n    }\n\n    throw new TypeError(\"Invalid attempt to iterate non-iterable instance.\\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.\");\n  }\n\n  var it,\n      normalCompletion = true,\n      didErr = false,\n      err;\n  return {\n    s: function s() {\n      it = o[Symbol.iterator]();\n    },\n    n: function n() {\n      var step = it.next();\n      normalCompletion = step.done;\n      return step;\n    },\n    e: function e(_e2) {\n      didErr = true;\n      err = _e2;\n    },\n    f: function f() {\n      try {\n        if (!normalCompletion && it[\"return\"] != null) it[\"return\"]();\n      } finally {\n        if (didErr) throw err;\n      }\n    }\n  };\n}","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _Constants=require('../constants/Constants');var _Constants2=_interopRequireDefault(_Constants);var _MetricsConstants=require('../constants/MetricsConstants');var _MetricsConstants2=_interopRequireDefault(_MetricsConstants);var _PlayList=require('../vo/metrics/PlayList');var _BufferLevelRule=require('../rules/scheduling/BufferLevelRule');var _BufferLevelRule2=_interopRequireDefault(_BufferLevelRule);var _NextFragmentRequestRule=require('../rules/scheduling/NextFragmentRequestRule');var _NextFragmentRequestRule2=_interopRequireDefault(_NextFragmentRequestRule);var _FragmentModel=require('../models/FragmentModel');var _FragmentModel2=_interopRequireDefault(_FragmentModel);var _EventBus=require('../../core/EventBus');var _EventBus2=_interopRequireDefault(_EventBus);var _Events=require('../../core/events/Events');var _Events2=_interopRequireDefault(_Events);var _FactoryMaker=require('../../core/FactoryMaker');var _FactoryMaker2=_interopRequireDefault(_FactoryMaker);var _Debug=require('../../core/Debug');var _Debug2=_interopRequireDefault(_Debug);var _MediaController=require('./MediaController');var _MediaController2=_interopRequireDefault(_MediaController);var _LiveEdgeFinder=require('../utils/LiveEdgeFinder');var _LiveEdgeFinder2=_interopRequireDefault(_LiveEdgeFinder);function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n */function ScheduleController(config){config=config||{};var context=this.context;var eventBus=(0,_EventBus2.default)(context).getInstance();var adapter=config.adapter;var dashMetrics=config.dashMetrics;var timelineConverter=config.timelineConverter;var mediaPlayerModel=config.mediaPlayerModel;var abrController=config.abrController;var playbackController=config.playbackController;var streamController=config.streamController;var textController=config.textController;var type=config.type;var streamProcessor=config.streamProcessor;var mediaController=config.mediaController;var settings=config.settings;var instance=void 0,logger=void 0,fragmentModel=void 0,currentRepresentationInfo=void 0,initialRequest=void 0,isStopped=void 0,isFragmentProcessingInProgress=void 0,timeToLoadDelay=void 0,scheduleTimeout=void 0,seekTarget=void 0,bufferLevelRule=void 0,nextFragmentRequestRule=void 0,lastFragmentRequest=void 0,topQualityIndex=void 0,lastInitQuality=void 0,replaceRequestArray=void 0,switchTrack=void 0,bufferResetInProgress=void 0,mediaRequest=void 0,liveEdgeFinder=void 0,checkPlaybackQuality=void 0,isReplacementRequest=void 0;function setup(){logger=(0,_Debug2.default)(context).getInstance().getLogger(instance);if(playbackController&&playbackController.getIsDynamic()){liveEdgeFinder=(0,_LiveEdgeFinder2.default)(context).create({timelineConverter:timelineConverter});}resetInitialSettings();}function initialize(){fragmentModel=streamProcessor.getFragmentModel();bufferLevelRule=(0,_BufferLevelRule2.default)(context).create({abrController:abrController,dashMetrics:dashMetrics,mediaPlayerModel:mediaPlayerModel,textController:textController,settings:settings});nextFragmentRequestRule=(0,_NextFragmentRequestRule2.default)(context).create({textController:textController,playbackController:playbackController});if(adapter.getIsTextTrack(config.mimeType)){eventBus.on(_Events2.default.TIMED_TEXT_REQUESTED,onTimedTextRequested,this);}//eventBus.on(Events.LIVE_EDGE_SEARCH_COMPLETED, onLiveEdgeSearchCompleted, this);\neventBus.on(_Events2.default.QUALITY_CHANGE_REQUESTED,onQualityChanged,this);eventBus.on(_Events2.default.DATA_UPDATE_STARTED,onDataUpdateStarted,this);eventBus.on(_Events2.default.DATA_UPDATE_COMPLETED,onDataUpdateCompleted,this);eventBus.on(_Events2.default.FRAGMENT_LOADING_COMPLETED,onFragmentLoadingCompleted,this);eventBus.on(_Events2.default.STREAM_COMPLETED,onStreamCompleted,this);eventBus.on(_Events2.default.STREAM_INITIALIZED,onStreamInitialized,this);eventBus.on(_Events2.default.BUFFER_LEVEL_STATE_CHANGED,onBufferLevelStateChanged,this);eventBus.on(_Events2.default.BUFFER_CLEARED,onBufferCleared,this);eventBus.on(_Events2.default.BYTES_APPENDED_END_FRAGMENT,onBytesAppended,this);eventBus.on(_Events2.default.INIT_REQUESTED,onInitRequested,this);eventBus.on(_Events2.default.QUOTA_EXCEEDED,onQuotaExceeded,this);eventBus.on(_Events2.default.PLAYBACK_SEEKING,onPlaybackSeeking,this);eventBus.on(_Events2.default.PLAYBACK_STARTED,onPlaybackStarted,this);eventBus.on(_Events2.default.PLAYBACK_RATE_CHANGED,onPlaybackRateChanged,this);eventBus.on(_Events2.default.PLAYBACK_TIME_UPDATED,onPlaybackTimeUpdated,this);eventBus.on(_Events2.default.URL_RESOLUTION_FAILED,onURLResolutionFailed,this);eventBus.on(_Events2.default.FRAGMENT_LOADING_ABANDONED,onFragmentLoadingAbandoned,this);}function isStarted(){return isStopped===false;}function start(){if(!currentRepresentationInfo||streamProcessor.isBufferingCompleted()){logger.warn('Start denied to Schedule Controller');return;}logger.debug('Schedule Controller starts');createPlaylistTraceMetrics();isStopped=false;if(initialRequest){initialRequest=false;}startScheduleTimer(0);}function stop(){if(isStopped){return;}logger.debug('Schedule Controller stops');isStopped=true;clearTimeout(scheduleTimeout);}function hasTopQualityChanged(type,id){topQualityIndex[id]=topQualityIndex[id]||{};var newTopQualityIndex=abrController.getTopQualityIndexFor(type,id);if(topQualityIndex[id][type]!=newTopQualityIndex){logger.info('Top quality '+type+' index has changed from '+topQualityIndex[id][type]+' to '+newTopQualityIndex);topQualityIndex[id][type]=newTopQualityIndex;return true;}return false;}function schedule(){var bufferController=streamProcessor.getBufferController();if(isStopped||isFragmentProcessingInProgress||!bufferController||playbackController.isPaused()&&!settings.get().streaming.scheduleWhilePaused||(type===_Constants2.default.FRAGMENTED_TEXT||type===_Constants2.default.TEXT)&&!textController.isTextEnabled()){logger.debug('Schedule stop!');return;}if(bufferController.getIsBufferingCompleted()){logger.debug('Schedule stop because buffering is completed!');return;}validateExecutedFragmentRequest();var isReplacement=replaceRequestArray.length>0;var streamInfo=streamProcessor.getStreamInfo();if(bufferResetInProgress||isNaN(lastInitQuality)||switchTrack||isReplacement||hasTopQualityChanged(currentRepresentationInfo.mediaInfo.type,streamInfo.id)||bufferLevelRule.execute(streamProcessor,streamController.isTrackTypePresent(_Constants2.default.VIDEO))){var getNextFragment=function getNextFragment(){if((currentRepresentationInfo.quality!==lastInitQuality||switchTrack)&&!bufferResetInProgress){logger.debug('Quality has changed, get init request for representationid = '+currentRepresentationInfo.id);if(switchTrack){bufferResetInProgress=mediaController.getSwitchMode(type)===_MediaController2.default.TRACK_SWITCH_MODE_ALWAYS_REPLACE?true:false;logger.debug('Switch track has been asked, get init request for '+type+' with representationid = '+currentRepresentationInfo.id+'bufferResetInProgress = '+bufferResetInProgress);streamProcessor.switchInitData(currentRepresentationInfo.id,bufferResetInProgress);switchTrack=false;}else{streamProcessor.switchInitData(currentRepresentationInfo.id);}lastInitQuality=currentRepresentationInfo.quality;checkPlaybackQuality=false;}else{var replacement=replaceRequestArray.shift();if(replacement&&replacement.isInitializationRequest()){// To be sure the specific init segment had not already been loaded\nstreamProcessor.switchInitData(replacement.representationId);checkPlaybackQuality=false;}else{var request=void 0;// Don't schedule next fragments while pruning to avoid buffer inconsistencies\nif(!streamProcessor.getBufferController().getIsPruningInProgress()){request=nextFragmentRequestRule.execute(streamProcessor,seekTarget,replacement);setSeekTarget(NaN);if(request&&!replacement){if(!isNaN(request.startTime+request.duration)){streamProcessor.setIndexHandlerTime(request.startTime+request.duration);}request.delayLoadingTime=new Date().getTime()+timeToLoadDelay;setTimeToLoadDelay(0);}if(!request&&streamInfo.manifestInfo&&streamInfo.manifestInfo.isDynamic){logger.debug('Next fragment seems to be at the bleeding live edge and is not available yet. Rescheduling.');}}if(request){logger.debug('Next fragment request url is '+request.url);fragmentModel.executeRequest(request);}else{// Use case - Playing at the bleeding live edge and frag is not available yet. Cycle back around.\nsetFragmentProcessState(false);startScheduleTimer(settings.get().streaming.lowLatencyEnabled?100:500);}checkPlaybackQuality=true;}}};setFragmentProcessState(true);if(!isReplacement&&checkPlaybackQuality){abrController.checkPlaybackQuality(type);}getNextFragment();}else{startScheduleTimer(500);}}function validateExecutedFragmentRequest(){// Validate that the fragment request executed and appended into the source buffer is as\n// good of quality as the current quality and is the correct media track.\nvar time=playbackController.getTime();var safeBufferLevel=1.5;if(isNaN(currentRepresentationInfo.fragmentDuration)){//fragmentDuration of representationInfo is not defined,\n// call metrics function to have data in the latest scheduling info...\n// if no metric, returns 0. In this case, rule will return false.\nvar schedulingInfo=dashMetrics.getCurrentSchedulingInfo(currentRepresentationInfo.mediaInfo.type);safeBufferLevel=schedulingInfo?schedulingInfo.duration*1.5:1.5;}var request=fragmentModel.getRequests({state:_FragmentModel2.default.FRAGMENT_MODEL_EXECUTED,time:time+safeBufferLevel,threshold:0})[0];if(request&&replaceRequestArray.indexOf(request)===-1&&!adapter.getIsTextTrack(type)){var fastSwitchModeEnabled=settings.get().streaming.fastSwitchEnabled;var bufferLevel=streamProcessor.getBufferLevel();var abandonmentState=abrController.getAbandonmentStateFor(type);// Only replace on track switch when NEVER_REPLACE\nvar trackChanged=!mediaController.isCurrentTrack(request.mediaInfo)&&mediaController.getSwitchMode(request.mediaInfo.type)===_MediaController2.default.TRACK_SWITCH_MODE_NEVER_REPLACE;var qualityChanged=request.quality<currentRepresentationInfo.quality;if(fastSwitchModeEnabled&&(trackChanged||qualityChanged)&&bufferLevel>=safeBufferLevel&&abandonmentState!==_MetricsConstants2.default.ABANDON_LOAD){replaceRequest(request);isReplacementRequest=true;logger.debug('Reloading outdated fragment at index: ',request.index);}else if(request.quality>currentRepresentationInfo.quality&&!bufferResetInProgress){// The buffer has better quality it in then what we would request so set append point to end of buffer!!\nsetSeekTarget(playbackController.getTime()+bufferLevel);}}}function startScheduleTimer(value){clearTimeout(scheduleTimeout);scheduleTimeout=setTimeout(schedule,value);}function onInitRequested(e){if(!e.sender||e.sender.getStreamProcessor()!==streamProcessor){return;}getInitRequest(currentRepresentationInfo.quality);}function setFragmentProcessState(state){if(isFragmentProcessingInProgress!==state){isFragmentProcessingInProgress=state;}else{logger.debug('isFragmentProcessingInProgress is already equal to',state);}}function getInitRequest(quality){var request=streamProcessor.getInitRequest(quality);if(request){setFragmentProcessState(true);fragmentModel.executeRequest(request);}}function switchTrackAsked(){switchTrack=true;}function replaceRequest(request){replaceRequestArray.push(request);}function onQualityChanged(e){if(type!==e.mediaType||streamProcessor.getStreamInfo().id!==e.streamInfo.id){return;}currentRepresentationInfo=streamProcessor.getRepresentationInfo(e.newQuality);if(currentRepresentationInfo===null||currentRepresentationInfo===undefined){throw new Error('Unexpected error! - currentRepresentationInfo is null or undefined');}clearPlayListTraceMetrics(new Date(),_PlayList.PlayListTrace.REPRESENTATION_SWITCH_STOP_REASON);createPlaylistTraceMetrics();}function completeQualityChange(trigger){if(playbackController&&fragmentModel){var item=fragmentModel.getRequests({state:_FragmentModel2.default.FRAGMENT_MODEL_EXECUTED,time:playbackController.getTime(),threshold:0})[0];if(item&&playbackController.getTime()>=item.startTime){if((!lastFragmentRequest.mediaInfo||item.mediaInfo.type===lastFragmentRequest.mediaInfo.type&&item.mediaInfo.id!==lastFragmentRequest.mediaInfo.id)&&trigger){eventBus.trigger(_Events2.default.TRACK_CHANGE_RENDERED,{mediaType:type,oldMediaInfo:lastFragmentRequest.mediaInfo,newMediaInfo:item.mediaInfo});}if((item.quality!==lastFragmentRequest.quality||item.adaptationIndex!==lastFragmentRequest.adaptationIndex)&&trigger){eventBus.trigger(_Events2.default.QUALITY_CHANGE_RENDERED,{mediaType:type,oldQuality:lastFragmentRequest.quality,newQuality:item.quality});}lastFragmentRequest={mediaInfo:item.mediaInfo,quality:item.quality,adaptationIndex:item.adaptationIndex};}}}function onDataUpdateCompleted(e){if(e.error||e.sender.getType()!==streamProcessor.getType()){return;}currentRepresentationInfo=adapter.convertDataToRepresentationInfo(e.currentRepresentation);}function onStreamInitialized(e){if(!e.streamInfo||streamProcessor.getStreamInfo().id!==e.streamInfo.id){return;}currentRepresentationInfo=streamProcessor.getRepresentationInfo();if(initialRequest){if(playbackController.getIsDynamic()){timelineConverter.setTimeSyncCompleted(true);setLiveEdgeSeekTarget();}else{setSeekTarget(playbackController.getStreamStartTime(false));streamProcessor.getBufferController().setSeekStartTime(seekTarget);}}if(isStopped){start();}}function setLiveEdgeSeekTarget(){if(liveEdgeFinder){var liveEdge=liveEdgeFinder.getLiveEdge(streamProcessor.getRepresentationInfo());var startTime=liveEdge-playbackController.computeLiveDelay(currentRepresentationInfo.fragmentDuration,currentRepresentationInfo.mediaInfo.streamInfo.manifestInfo.DVRWindowSize);var request=streamProcessor.getFragmentRequest(currentRepresentationInfo,startTime,{ignoreIsFinished:true});if(request){// When low latency mode is selected but browser doesn't support fetch\n// start at the beginning of the segment to avoid consuming the whole buffer\nif(settings.get().streaming.lowLatencyEnabled){var liveStartTime=request.duration<mediaPlayerModel.getLiveDelay()?request.startTime:request.startTime+request.duration-mediaPlayerModel.getLiveDelay();playbackController.setLiveStartTime(liveStartTime);}else{playbackController.setLiveStartTime(request.startTime);}}else{logger.debug('setLiveEdgeSeekTarget : getFragmentRequest returned undefined request object');}setSeekTarget(playbackController.getStreamStartTime(false,liveEdge));streamProcessor.getBufferController().setSeekStartTime(seekTarget);//special use case for multi period stream. If the startTime is out of the current period, send a seek command.\n//in onPlaybackSeeking callback (StreamController), the detection of switch stream is done.\nif(seekTarget>currentRepresentationInfo.mediaInfo.streamInfo.start+currentRepresentationInfo.mediaInfo.streamInfo.duration){playbackController.seek(seekTarget);}dashMetrics.updateManifestUpdateInfo({currentTime:seekTarget,presentationStartTime:liveEdge,latency:liveEdge-seekTarget,clientTimeOffset:timelineConverter.getClientTimeOffset()});}}function onStreamCompleted(e){if(e.fragmentModel!==fragmentModel){return;}stop();setFragmentProcessState(false);logger.info('Stream is complete');}function onFragmentLoadingCompleted(e){if(e.sender!==fragmentModel){return;}logger.info('OnFragmentLoadingCompleted - Url:',e.request?e.request.url:'undefined',e.request.range?', Range:'+e.request.range:'');if(adapter.getIsTextTrack(type)){setFragmentProcessState(false);}if(e.error&&e.request.serviceLocation&&!isStopped){replaceRequest(e.request);setFragmentProcessState(false);startScheduleTimer(0);}if(bufferResetInProgress){mediaRequest=e.request;}}function onPlaybackTimeUpdated(){completeQualityChange(true);}function onBytesAppended(e){if(e.sender.getStreamProcessor()!==streamProcessor){return;}if(bufferResetInProgress&&!isNaN(e.startTime)){bufferResetInProgress=false;fragmentModel.addExecutedRequest(mediaRequest);}setFragmentProcessState(false);if(isReplacementRequest&&!isNaN(e.startTime)){//replace requests process is in progress, call schedule in n seconds.\n//it is done in order to not add a fragment at the new quality at the end of the buffer before replace process is over.\n//Indeed, if schedule is called too early, the executed request tested is the same that the one tested during previous schedule (at the new quality).\nvar currentTime=playbackController.getTime();var fragEndTime=e.startTime+currentRepresentationInfo.fragmentDuration;var safeBufferLevel=currentRepresentationInfo.fragmentDuration*1.5;if(currentTime+safeBufferLevel>=fragEndTime){startScheduleTimer(0);}else{startScheduleTimer((fragEndTime-(currentTime+safeBufferLevel))*1000);}isReplacementRequest=false;}else{startScheduleTimer(0);}}function onFragmentLoadingAbandoned(e){if(e.streamProcessor!==streamProcessor){return;}logger.info('onFragmentLoadingAbandoned request: '+e.request.url+' has been aborted');if(!playbackController.isSeeking()&&!switchTrack){logger.info('onFragmentLoadingAbandoned request: '+e.request.url+' has to be downloaded again, origin is not seeking process or switch track call');replaceRequest(e.request);}setFragmentProcessState(false);startScheduleTimer(0);}function onDataUpdateStarted(e){var streamInfo=streamProcessor.getStreamInfo();var streamInfoId=streamInfo?streamInfo.id:null;if(e.sender.getType()!==streamProcessor.getType()||e.sender.getStreamId()!==streamInfoId){return;}stop();}function onBufferCleared(e){if(e.sender.getStreamProcessor()!==streamProcessor){return;}var streamInfo=streamProcessor.getStreamInfo();if(streamInfo){if(e.unintended){// There was an unintended buffer remove, probably creating a gap in the buffer, remove every saved request\nfragmentModel.removeExecutedRequestsAfterTime(e.from);}else{fragmentModel.syncExecutedRequestsWithBufferedRange(streamProcessor.getBufferController().getBuffer().getAllBufferRanges(),streamInfo.duration);}}if(e.hasEnoughSpaceToAppend&&e.quotaExceeded&&isStopped){start();}}function onBufferLevelStateChanged(e){if(e.sender.getStreamProcessor()===streamProcessor&&e.state===_MetricsConstants2.default.BUFFER_EMPTY&&!playbackController.isSeeking()){logger.info('Buffer is empty! Stalling!');clearPlayListTraceMetrics(new Date(),_PlayList.PlayListTrace.REBUFFERING_REASON);}}function onQuotaExceeded(e){if(e.sender.getStreamProcessor()!==streamProcessor){return;}stop();setFragmentProcessState(false);}function onURLResolutionFailed(){fragmentModel.abortRequests();stop();}function onTimedTextRequested(e){var streamInfo=streamProcessor.getStreamInfo();var streamInfoId=streamInfo?streamInfo.id:null;if(e.sender.getStreamId()!==streamInfoId){return;}//if subtitles are disabled, do not download subtitles file.\nif(textController.isTextEnabled()){getInitRequest(e.index);}}function onPlaybackStarted(){if(isStopped||!settings.get().streaming.scheduleWhilePaused){start();}}function onPlaybackSeeking(e){setSeekTarget(e.seekTime);setTimeToLoadDelay(0);if(isStopped){start();}var latency=currentRepresentationInfo.DVRWindow&&playbackController?currentRepresentationInfo.DVRWindow.end-playbackController.getTime():NaN;dashMetrics.updateManifestUpdateInfo({latency:latency});//if, during the seek command, the scheduleController is waiting : stop waiting, request chunk as soon as possible\nif(!isFragmentProcessingInProgress){startScheduleTimer(0);}else{logger.debug('onPlaybackSeeking, call fragmentModel.abortRequests in order to seek quicker');fragmentModel.abortRequests();}}function onPlaybackRateChanged(e){dashMetrics.updatePlayListTraceMetrics({playbackspeed:e.playbackRate.toString()});}function setSeekTarget(value){seekTarget=value;}function setTimeToLoadDelay(value){timeToLoadDelay=value;}function getBufferTarget(){return bufferLevelRule.getBufferTarget(streamProcessor,streamController.isTrackTypePresent(_Constants2.default.VIDEO));}function getType(){return type;}function finalisePlayList(time,reason){clearPlayListTraceMetrics(time,reason);}function clearPlayListTraceMetrics(endTime,stopreason){dashMetrics.pushPlayListTraceMetrics(endTime,stopreason);}function createPlaylistTraceMetrics(){if(currentRepresentationInfo){var playbackRate=playbackController.getPlaybackRate();dashMetrics.createPlaylistTraceMetrics(currentRepresentationInfo.id,playbackController.getTime()*1000,playbackRate!==null?playbackRate.toString():null);}}function resetInitialSettings(){checkPlaybackQuality=true;isFragmentProcessingInProgress=false;timeToLoadDelay=0;seekTarget=NaN;initialRequest=true;lastInitQuality=NaN;lastFragmentRequest={mediaInfo:undefined,quality:NaN,adaptationIndex:NaN};topQualityIndex={};replaceRequestArray=[];isStopped=true;switchTrack=false;bufferResetInProgress=false;mediaRequest=null;isReplacementRequest=false;}function reset(){//eventBus.off(Events.LIVE_EDGE_SEARCH_COMPLETED, onLiveEdgeSearchCompleted, this);\neventBus.off(_Events2.default.DATA_UPDATE_STARTED,onDataUpdateStarted,this);eventBus.off(_Events2.default.DATA_UPDATE_COMPLETED,onDataUpdateCompleted,this);eventBus.off(_Events2.default.BUFFER_LEVEL_STATE_CHANGED,onBufferLevelStateChanged,this);eventBus.off(_Events2.default.QUALITY_CHANGE_REQUESTED,onQualityChanged,this);eventBus.off(_Events2.default.FRAGMENT_LOADING_COMPLETED,onFragmentLoadingCompleted,this);eventBus.off(_Events2.default.STREAM_COMPLETED,onStreamCompleted,this);eventBus.off(_Events2.default.STREAM_INITIALIZED,onStreamInitialized,this);eventBus.off(_Events2.default.QUOTA_EXCEEDED,onQuotaExceeded,this);eventBus.off(_Events2.default.BYTES_APPENDED_END_FRAGMENT,onBytesAppended,this);eventBus.off(_Events2.default.BUFFER_CLEARED,onBufferCleared,this);eventBus.off(_Events2.default.INIT_REQUESTED,onInitRequested,this);eventBus.off(_Events2.default.PLAYBACK_RATE_CHANGED,onPlaybackRateChanged,this);eventBus.off(_Events2.default.PLAYBACK_SEEKING,onPlaybackSeeking,this);eventBus.off(_Events2.default.PLAYBACK_STARTED,onPlaybackStarted,this);eventBus.off(_Events2.default.PLAYBACK_TIME_UPDATED,onPlaybackTimeUpdated,this);eventBus.off(_Events2.default.URL_RESOLUTION_FAILED,onURLResolutionFailed,this);eventBus.off(_Events2.default.FRAGMENT_LOADING_ABANDONED,onFragmentLoadingAbandoned,this);if(adapter.getIsTextTrack(type)){eventBus.off(_Events2.default.TIMED_TEXT_REQUESTED,onTimedTextRequested,this);}stop();completeQualityChange(false);resetInitialSettings();if(liveEdgeFinder){liveEdgeFinder.reset();liveEdgeFinder=null;}}instance={initialize:initialize,getType:getType,setSeekTarget:setSeekTarget,setTimeToLoadDelay:setTimeToLoadDelay,replaceRequest:replaceRequest,switchTrackAsked:switchTrackAsked,isStarted:isStarted,start:start,stop:stop,reset:reset,getBufferTarget:getBufferTarget,finalisePlayList:finalisePlayList};setup();return instance;}ScheduleController.__dashjs_factory_name='ScheduleController';exports.default=_FactoryMaker2.default.getClassFactory(ScheduleController);\n//# sourceMappingURL=ScheduleController.js.map\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _MetricsReportingEvents=require('../../MetricsReportingEvents');var _MetricsReportingEvents2=_interopRequireDefault(_MetricsReportingEvents);function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}function DVBErrorsHandler(config){config=config||{};var instance=void 0,reportingController=void 0;var eventBus=config.eventBus;var metricsConstants=config.metricsConstants;function onInitialisationComplete(){// we only want to report this once per call to initialize\neventBus.off(_MetricsReportingEvents2.default.METRICS_INITIALISATION_COMPLETE,onInitialisationComplete,this);// Note: A Player becoming a reporting Player is itself\n// something which is recorded by the DVBErrors metric.\neventBus.trigger(_MetricsReportingEvents2.default.BECAME_REPORTING_PLAYER);}function initialize(unused,rc){if(rc){reportingController=rc;eventBus.on(_MetricsReportingEvents2.default.METRICS_INITIALISATION_COMPLETE,onInitialisationComplete,this);}}function reset(){reportingController=null;}function handleNewMetric(metric,vo){// simply pass metric straight through\nif(metric===metricsConstants.DVB_ERRORS){if(reportingController){reportingController.report(metric,vo);}}}instance={initialize:initialize,reset:reset,handleNewMetric:handleNewMetric};return instance;}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n */exports.default=dashjs.FactoryMaker.getClassFactory(DVBErrorsHandler);/* jshint ignore:line */\n//# sourceMappingURL=DVBErrorsHandler.js.map\n","typeof window !== \"undefined\" &&\n(function webpackUniversalModuleDefinition(root, factory) {\n\tif(typeof exports === 'object' && typeof module === 'object')\n\t\tmodule.exports = factory();\n\telse if(typeof define === 'function' && define.amd)\n\t\tdefine([], factory);\n\telse if(typeof exports === 'object')\n\t\texports[\"Hls\"] = factory();\n\telse\n\t\troot[\"Hls\"] = factory();\n})(this, function() {\nreturn /******/ (function(modules) { // webpackBootstrap\n/******/ \t// The module cache\n/******/ \tvar installedModules = {};\n/******/\n/******/ \t// The require function\n/******/ \tfunction __webpack_require__(moduleId) {\n/******/\n/******/ \t\t// Check if module is in cache\n/******/ \t\tif(installedModules[moduleId]) {\n/******/ \t\t\treturn installedModules[moduleId].exports;\n/******/ \t\t}\n/******/ \t\t// Create a new module (and put it into the cache)\n/******/ \t\tvar module = installedModules[moduleId] = {\n/******/ \t\t\ti: moduleId,\n/******/ \t\t\tl: false,\n/******/ \t\t\texports: {}\n/******/ \t\t};\n/******/\n/******/ \t\t// Execute the module function\n/******/ \t\tmodules[moduleId].call(module.exports, module, module.exports, __webpack_require__);\n/******/\n/******/ \t\t// Flag the module as loaded\n/******/ \t\tmodule.l = true;\n/******/\n/******/ \t\t// Return the exports of the module\n/******/ \t\treturn module.exports;\n/******/ \t}\n/******/\n/******/\n/******/ \t// expose the modules object (__webpack_modules__)\n/******/ \t__webpack_require__.m = modules;\n/******/\n/******/ \t// expose the module cache\n/******/ \t__webpack_require__.c = installedModules;\n/******/\n/******/ \t// define getter function for harmony exports\n/******/ \t__webpack_require__.d = function(exports, name, getter) {\n/******/ \t\tif(!__webpack_require__.o(exports, name)) {\n/******/ \t\t\tObject.defineProperty(exports, name, { enumerable: true, get: getter });\n/******/ \t\t}\n/******/ \t};\n/******/\n/******/ \t// define __esModule on exports\n/******/ \t__webpack_require__.r = function(exports) {\n/******/ \t\tif(typeof Symbol !== 'undefined' && Symbol.toStringTag) {\n/******/ \t\t\tObject.defineProperty(exports, Symbol.toStringTag, { value: 'Module' });\n/******/ \t\t}\n/******/ \t\tObject.defineProperty(exports, '__esModule', { value: true });\n/******/ \t};\n/******/\n/******/ \t// create a fake namespace object\n/******/ \t// mode & 1: value is a module id, require it\n/******/ \t// mode & 2: merge all properties of value into the ns\n/******/ \t// mode & 4: return value when already ns object\n/******/ \t// mode & 8|1: behave like require\n/******/ \t__webpack_require__.t = function(value, mode) {\n/******/ \t\tif(mode & 1) value = __webpack_require__(value);\n/******/ \t\tif(mode & 8) return value;\n/******/ \t\tif((mode & 4) && typeof value === 'object' && value && value.__esModule) return value;\n/******/ \t\tvar ns = Object.create(null);\n/******/ \t\t__webpack_require__.r(ns);\n/******/ \t\tObject.defineProperty(ns, 'default', { enumerable: true, value: value });\n/******/ \t\tif(mode & 2 && typeof value != 'string') for(var key in value) __webpack_require__.d(ns, key, function(key) { return value[key]; 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In some engines creating an\n// instance in this way is faster than calling `Object.create(null)` directly.\n// If `Object.create(null)` is not supported we prefix the event names with a\n// character to make sure that the built-in object properties are not\n// overridden or used as an attack vector.\n//\nif (Object.create) {\n  Events.prototype = Object.create(null);\n\n  //\n  // This hack is needed because the `__proto__` property is still inherited in\n  // some old browsers like Android 4, iPhone 5.1, Opera 11 and Safari 5.\n  //\n  if (!new Events().__proto__) prefix = false;\n}\n\n/**\n * Representation of a single event listener.\n *\n * @param {Function} fn The listener function.\n * @param {*} context The context to invoke the listener with.\n * @param {Boolean} [once=false] Specify if the listener is a one-time listener.\n * @constructor\n * @private\n */\nfunction EE(fn, context, once) {\n  this.fn = fn;\n  this.context = context;\n  this.once = once || false;\n}\n\n/**\n * Add a listener for a given event.\n *\n * @param {EventEmitter} emitter Reference to the `EventEmitter` instance.\n * @param {(String|Symbol)} event The event name.\n * @param {Function} fn The listener function.\n * @param {*} context The context to invoke the listener with.\n * @param {Boolean} once Specify if the listener is a one-time listener.\n * @returns {EventEmitter}\n * @private\n */\nfunction addListener(emitter, event, fn, context, once) {\n  if (typeof fn !== 'function') {\n    throw new TypeError('The listener must be a function');\n  }\n\n  var listener = new EE(fn, context || emitter, once)\n    , evt = prefix ? prefix + event : event;\n\n  if (!emitter._events[evt]) emitter._events[evt] = listener, emitter._eventsCount++;\n  else if (!emitter._events[evt].fn) emitter._events[evt].push(listener);\n  else emitter._events[evt] = [emitter._events[evt], listener];\n\n  return emitter;\n}\n\n/**\n * Clear event by name.\n *\n * @param {EventEmitter} emitter Reference to the `EventEmitter` instance.\n * @param {(String|Symbol)} evt The Event name.\n * @private\n */\nfunction clearEvent(emitter, evt) {\n  if (--emitter._eventsCount === 0) emitter._events = new Events();\n  else delete emitter._events[evt];\n}\n\n/**\n * Minimal `EventEmitter` interface that is molded against the Node.js\n * `EventEmitter` interface.\n *\n * @constructor\n * @public\n */\nfunction EventEmitter() {\n  this._events = new Events();\n  this._eventsCount = 0;\n}\n\n/**\n * Return an array listing the events for which the emitter has registered\n * listeners.\n *\n * @returns {Array}\n * @public\n */\nEventEmitter.prototype.eventNames = function eventNames() {\n  var names = []\n    , events\n    , name;\n\n  if (this._eventsCount === 0) return names;\n\n  for (name in (events = this._events)) {\n    if (has.call(events, name)) names.push(prefix ? name.slice(1) : name);\n  }\n\n  if (Object.getOwnPropertySymbols) {\n    return names.concat(Object.getOwnPropertySymbols(events));\n  }\n\n  return names;\n};\n\n/**\n * Return the listeners registered for a given event.\n *\n * @param {(String|Symbol)} event The event name.\n * @returns {Array} The registered listeners.\n * @public\n */\nEventEmitter.prototype.listeners = function listeners(event) {\n  var evt = prefix ? prefix + event : event\n    , handlers = this._events[evt];\n\n  if (!handlers) return [];\n  if (handlers.fn) return [handlers.fn];\n\n  for (var i = 0, l = handlers.length, ee = new Array(l); i < l; i++) {\n    ee[i] = handlers[i].fn;\n  }\n\n  return ee;\n};\n\n/**\n * Return the number of listeners listening to a given event.\n *\n * @param {(String|Symbol)} event The event name.\n * @returns {Number} The number of listeners.\n * @public\n */\nEventEmitter.prototype.listenerCount = function listenerCount(event) {\n  var evt = prefix ? prefix + event : event\n    , listeners = this._events[evt];\n\n  if (!listeners) return 0;\n  if (listeners.fn) return 1;\n  return listeners.length;\n};\n\n/**\n * Calls each of the listeners registered for a given event.\n *\n * @param {(String|Symbol)} event The event name.\n * @returns {Boolean} `true` if the event had listeners, else `false`.\n * @public\n */\nEventEmitter.prototype.emit = function emit(event, a1, a2, a3, a4, a5) {\n  var evt = prefix ? prefix + event : event;\n\n  if (!this._events[evt]) return false;\n\n  var listeners = this._events[evt]\n    , len = arguments.length\n    , args\n    , i;\n\n  if (listeners.fn) {\n    if (listeners.once) this.removeListener(event, listeners.fn, undefined, true);\n\n    switch (len) {\n      case 1: return listeners.fn.call(listeners.context), true;\n      case 2: return listeners.fn.call(listeners.context, a1), true;\n      case 3: return listeners.fn.call(listeners.context, a1, a2), true;\n      case 4: return listeners.fn.call(listeners.context, a1, a2, a3), true;\n      case 5: return listeners.fn.call(listeners.context, a1, a2, a3, a4), true;\n      case 6: return listeners.fn.call(listeners.context, a1, a2, a3, a4, a5), true;\n    }\n\n    for (i = 1, args = new Array(len -1); i < len; i++) {\n      args[i - 1] = arguments[i];\n    }\n\n    listeners.fn.apply(listeners.context, args);\n  } else {\n    var length = listeners.length\n      , j;\n\n    for (i = 0; i < length; i++) {\n      if (listeners[i].once) this.removeListener(event, listeners[i].fn, undefined, true);\n\n      switch (len) {\n        case 1: listeners[i].fn.call(listeners[i].context); break;\n        case 2: listeners[i].fn.call(listeners[i].context, a1); break;\n        case 3: listeners[i].fn.call(listeners[i].context, a1, a2); break;\n        case 4: listeners[i].fn.call(listeners[i].context, a1, a2, a3); break;\n        default:\n          if (!args) for (j = 1, args = new Array(len -1); j < len; j++) {\n            args[j - 1] = arguments[j];\n          }\n\n          listeners[i].fn.apply(listeners[i].context, args);\n      }\n    }\n  }\n\n  return true;\n};\n\n/**\n * Add a listener for a given event.\n *\n * @param {(String|Symbol)} event The event name.\n * @param {Function} fn The listener function.\n * @param {*} [context=this] The context to invoke the listener with.\n * @returns {EventEmitter} `this`.\n * @public\n */\nEventEmitter.prototype.on = function on(event, fn, context) {\n  return addListener(this, event, fn, context, false);\n};\n\n/**\n * Add a one-time listener for a given event.\n *\n * @param {(String|Symbol)} event The event name.\n * @param {Function} fn The listener function.\n * @param {*} [context=this] The context to invoke the listener with.\n * @returns {EventEmitter} `this`.\n * @public\n */\nEventEmitter.prototype.once = function once(event, fn, context) {\n  return addListener(this, event, fn, context, true);\n};\n\n/**\n * Remove the listeners of a given event.\n *\n * @param {(String|Symbol)} event The event name.\n * @param {Function} fn Only remove the listeners that match this function.\n * @param {*} context Only remove the listeners that have this context.\n * @param {Boolean} once Only remove one-time listeners.\n * @returns {EventEmitter} `this`.\n * @public\n */\nEventEmitter.prototype.removeListener = function removeListener(event, fn, context, once) {\n  var evt = prefix ? prefix + event : event;\n\n  if (!this._events[evt]) return this;\n  if (!fn) {\n    clearEvent(this, evt);\n    return this;\n  }\n\n  var listeners = this._events[evt];\n\n  if (listeners.fn) {\n    if (\n      listeners.fn === fn &&\n      (!once || listeners.once) &&\n      (!context || listeners.context === context)\n    ) {\n      clearEvent(this, evt);\n    }\n  } else {\n    for (var i = 0, events = [], length = listeners.length; i < length; i++) {\n      if (\n        listeners[i].fn !== fn ||\n        (once && !listeners[i].once) ||\n        (context && listeners[i].context !== context)\n      ) {\n        events.push(listeners[i]);\n      }\n    }\n\n    //\n    // Reset the array, or remove it completely if we have no more listeners.\n    //\n    if (events.length) this._events[evt] = events.length === 1 ? events[0] : events;\n    else clearEvent(this, evt);\n  }\n\n  return this;\n};\n\n/**\n * Remove all listeners, or those of the specified event.\n *\n * @param {(String|Symbol)} [event] The event name.\n * @returns {EventEmitter} `this`.\n * @public\n */\nEventEmitter.prototype.removeAllListeners = function removeAllListeners(event) {\n  var evt;\n\n  if (event) {\n    evt = prefix ? 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ModuleConcatenation bailout: Module is not an ECMAScript module */\n/***/ (function(module, exports, __webpack_require__) {\n\n// see https://tools.ietf.org/html/rfc1808\n\n(function (root) {\n  var URL_REGEX = /^((?:[a-zA-Z0-9+\\-.]+:)?)(\\/\\/[^\\/?#]*)?((?:[^\\/?#]*\\/)*[^;?#]*)?(;[^?#]*)?(\\?[^#]*)?(#.*)?$/;\n  var FIRST_SEGMENT_REGEX = /^([^\\/?#]*)(.*)$/;\n  var SLASH_DOT_REGEX = /(?:\\/|^)\\.(?=\\/)/g;\n  var SLASH_DOT_DOT_REGEX = /(?:\\/|^)\\.\\.\\/(?!\\.\\.\\/)[^\\/]*(?=\\/)/g;\n\n  var URLToolkit = {\n    // If opts.alwaysNormalize is true then the path will always be normalized even when it starts with / or //\n    // E.g\n    // With opts.alwaysNormalize = false (default, spec compliant)\n    // http://a.com/b/cd + /e/f/../g => http://a.com/e/f/../g\n    // With opts.alwaysNormalize = true (not spec compliant)\n    // http://a.com/b/cd + /e/f/../g => http://a.com/e/g\n    buildAbsoluteURL: function (baseURL, relativeURL, opts) {\n      opts = opts || {};\n      // remove any remaining space and CRLF\n      baseURL = baseURL.trim();\n      relativeURL = relativeURL.trim();\n      if (!relativeURL) {\n        // 2a) If the embedded URL is entirely empty, it inherits the\n        // entire base URL (i.e., is set equal to the base URL)\n        // and we are done.\n        if (!opts.alwaysNormalize) {\n          return baseURL;\n        }\n        var basePartsForNormalise = URLToolkit.parseURL(baseURL);\n        if (!basePartsForNormalise) {\n          throw new Error('Error trying to parse base URL.');\n        }\n        basePartsForNormalise.path = URLToolkit.normalizePath(\n          basePartsForNormalise.path\n        );\n        return URLToolkit.buildURLFromParts(basePartsForNormalise);\n      }\n      var relativeParts = URLToolkit.parseURL(relativeURL);\n      if (!relativeParts) {\n        throw new Error('Error trying to parse relative URL.');\n      }\n      if (relativeParts.scheme) {\n        // 2b) If the embedded URL starts with a scheme name, it is\n        // interpreted as an absolute URL and we are done.\n        if (!opts.alwaysNormalize) {\n          return relativeURL;\n        }\n        relativeParts.path = URLToolkit.normalizePath(relativeParts.path);\n        return URLToolkit.buildURLFromParts(relativeParts);\n      }\n      var baseParts = URLToolkit.parseURL(baseURL);\n      if (!baseParts) {\n        throw new Error('Error trying to parse base URL.');\n      }\n      if (!baseParts.netLoc && baseParts.path && baseParts.path[0] !== '/') {\n        // If netLoc missing and path doesn't start with '/', assume everthing before the first '/' is the netLoc\n        // This causes 'example.com/a' to be handled as '//example.com/a' instead of '/example.com/a'\n        var pathParts = FIRST_SEGMENT_REGEX.exec(baseParts.path);\n        baseParts.netLoc = pathParts[1];\n        baseParts.path = pathParts[2];\n      }\n      if (baseParts.netLoc && !baseParts.path) {\n        baseParts.path = '/';\n      }\n      var builtParts = {\n        // 2c) Otherwise, the embedded URL inherits the scheme of\n        // the base URL.\n        scheme: baseParts.scheme,\n        netLoc: relativeParts.netLoc,\n        path: null,\n        params: relativeParts.params,\n        query: relativeParts.query,\n        fragment: relativeParts.fragment,\n      };\n      if (!relativeParts.netLoc) {\n        // 3) If the embedded URL's <net_loc> is non-empty, we skip to\n        // Step 7.  Otherwise, the embedded URL inherits the <net_loc>\n        // (if any) of the base URL.\n        builtParts.netLoc = baseParts.netLoc;\n        // 4) If the embedded URL path is preceded by a slash \"/\", the\n        // path is not relative and we skip to Step 7.\n        if (relativeParts.path[0] !== '/') {\n          if (!relativeParts.path) {\n            // 5) If the embedded URL path is empty (and not preceded by a\n            // slash), then the embedded URL inherits the base URL path\n            builtParts.path = baseParts.path;\n            // 5a) if the embedded URL's <params> is non-empty, we skip to\n            // step 7; otherwise, it inherits the <params> of the base\n            // URL (if any) and\n            if (!relativeParts.params) {\n              builtParts.params = baseParts.params;\n              // 5b) if the embedded URL's <query> is non-empty, we skip to\n              // step 7; otherwise, it inherits the <query> of the base\n              // URL (if any) and we skip to step 7.\n              if (!relativeParts.query) {\n                builtParts.query = baseParts.query;\n              }\n            }\n          } else {\n            // 6) The last segment of the base URL's path (anything\n            // following the rightmost slash \"/\", or the entire path if no\n            // slash is present) is removed and the embedded URL's path is\n            // appended in its place.\n            var baseURLPath = baseParts.path;\n            var newPath =\n              baseURLPath.substring(0, baseURLPath.lastIndexOf('/') + 1) +\n              relativeParts.path;\n            builtParts.path = URLToolkit.normalizePath(newPath);\n          }\n        }\n      }\n      if (builtParts.path === null) {\n        builtParts.path = opts.alwaysNormalize\n          ? URLToolkit.normalizePath(relativeParts.path)\n          : relativeParts.path;\n      }\n      return URLToolkit.buildURLFromParts(builtParts);\n    },\n    parseURL: function (url) {\n      var parts = URL_REGEX.exec(url);\n      if (!parts) {\n        return null;\n      }\n      return {\n        scheme: parts[1] || '',\n        netLoc: parts[2] || '',\n        path: parts[3] || '',\n        params: parts[4] || '',\n        query: parts[5] || '',\n        fragment: parts[6] || '',\n      };\n    },\n    normalizePath: function (path) {\n      // The following operations are\n      // then applied, in order, to the new path:\n      // 6a) All occurrences of \"./\", where \".\" is a complete path\n      // segment, are removed.\n      // 6b) If the path ends with \".\" as a complete path segment,\n      // that \".\" is removed.\n      path = path.split('').reverse().join('').replace(SLASH_DOT_REGEX, '');\n      // 6c) All occurrences of \"<segment>/../\", where <segment> is a\n      // complete path segment not equal to \"..\", are removed.\n      // Removal of these path segments is performed iteratively,\n      // removing the leftmost matching pattern on each iteration,\n      // until no matching pattern remains.\n      // 6d) If the path ends with \"<segment>/..\", where <segment> is a\n      // complete path segment not equal to \"..\", that\n      // \"<segment>/..\" is removed.\n      while (\n        path.length !== (path = path.replace(SLASH_DOT_DOT_REGEX, '')).length\n      ) {}\n      return path.split('').reverse().join('');\n    },\n    buildURLFromParts: function (parts) {\n      return (\n        parts.scheme +\n        parts.netLoc +\n        parts.path +\n        parts.params +\n        parts.query +\n        parts.fragment\n      );\n    },\n  };\n\n  if (true)\n    module.exports = URLToolkit;\n  else {}\n})(this);\n\n\n/***/ }),\n\n/***/ \"./node_modules/webworkify-webpack/index.js\":\n/*!**************************************************!*\\\n  !*** ./node_modules/webworkify-webpack/index.js ***!\n  \\**************************************************/\n/*! no static exports found */\n/*! 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};\n\n/******/  // __webpack_public_path__\n/******/  __webpack_require__.p = \"/\";\n\n/******/  // on error function for async loading\n/******/  __webpack_require__.oe = function(err) { console.error(err); throw err; };\n\n  var f = __webpack_require__(__webpack_require__.s = ENTRY_MODULE)\n  return f.default || f // try to call default if defined to also support babel esmodule exports\n}\n\nvar moduleNameReqExp = '[\\\\.|\\\\-|\\\\+|\\\\w|\\/|@]+'\nvar dependencyRegExp = '\\\\(\\\\s*(\\/\\\\*.*?\\\\*\\/)?\\\\s*.*?(' + moduleNameReqExp + ').*?\\\\)' // additional chars when output.pathinfo is true\n\n// http://stackoverflow.com/a/2593661/130442\nfunction quoteRegExp (str) {\n  return (str + '').replace(/[.?*+^$[\\]\\\\(){}|-]/g, '\\\\$&')\n}\n\nfunction isNumeric(n) {\n  return !isNaN(1 * n); // 1 * n converts integers, integers as string (\"123\"), 1e3 and \"1e3\" to integers and strings to NaN\n}\n\nfunction getModuleDependencies (sources, module, queueName) {\n  var retval = {}\n  retval[queueName] = []\n\n  var fnString = module.toString()\n  var wrapperSignature = fnString.match(/^function\\s?\\w*\\(\\w+,\\s*\\w+,\\s*(\\w+)\\)/)\n  if (!wrapperSignature) return retval\n  var webpackRequireName = wrapperSignature[1]\n\n  // main bundle deps\n  var re = new RegExp('(\\\\\\\\n|\\\\W)' + quoteRegExp(webpackRequireName) + dependencyRegExp, 'g')\n  var match\n  while ((match = re.exec(fnString))) {\n    if (match[3] === 'dll-reference') continue\n    retval[queueName].push(match[3])\n  }\n\n  // dll deps\n  re = new RegExp('\\\\(' + quoteRegExp(webpackRequireName) + '\\\\(\"(dll-reference\\\\s(' + moduleNameReqExp + '))\"\\\\)\\\\)' + dependencyRegExp, 'g')\n  while ((match = re.exec(fnString))) {\n    if (!sources[match[2]]) {\n      retval[queueName].push(match[1])\n      sources[match[2]] = __webpack_require__(match[1]).m\n    }\n    retval[match[2]] = retval[match[2]] || []\n    retval[match[2]].push(match[4])\n  }\n\n  // convert 1e3 back to 1000 - this can be important after uglify-js converted 1000 to 1e3\n  var keys = Object.keys(retval);\n  for (var i = 0; i < keys.length; i++) {\n    for (var j = 0; j < retval[keys[i]].length; j++) {\n      if (isNumeric(retval[keys[i]][j])) {\n        retval[keys[i]][j] = 1 * retval[keys[i]][j];\n      }\n    }\n  }\n\n  return retval\n}\n\nfunction hasValuesInQueues (queues) {\n  var keys = Object.keys(queues)\n  return keys.reduce(function (hasValues, key) {\n    return hasValues || queues[key].length > 0\n  }, false)\n}\n\nfunction getRequiredModules (sources, moduleId) {\n  var modulesQueue = {\n    main: [moduleId]\n  }\n  var requiredModules = {\n    main: []\n  }\n  var seenModules = {\n    main: {}\n  }\n\n  while (hasValuesInQueues(modulesQueue)) {\n    var queues = Object.keys(modulesQueue)\n    for (var i = 0; i < queues.length; i++) {\n      var queueName = queues[i]\n      var queue = modulesQueue[queueName]\n      var moduleToCheck = queue.pop()\n      seenModules[queueName] = seenModules[queueName] || {}\n      if (seenModules[queueName][moduleToCheck] || !sources[queueName][moduleToCheck]) continue\n      seenModules[queueName][moduleToCheck] = true\n      requiredModules[queueName] = requiredModules[queueName] || []\n      requiredModules[queueName].push(moduleToCheck)\n      var newModules = getModuleDependencies(sources, sources[queueName][moduleToCheck], queueName)\n      var newModulesKeys = Object.keys(newModules)\n      for (var j = 0; j < newModulesKeys.length; j++) {\n        modulesQueue[newModulesKeys[j]] = modulesQueue[newModulesKeys[j]] || []\n        modulesQueue[newModulesKeys[j]] = modulesQueue[newModulesKeys[j]].concat(newModules[newModulesKeys[j]])\n      }\n    }\n  }\n\n  return requiredModules\n}\n\nmodule.exports = function (moduleId, options) {\n  options = options || {}\n  var sources = {\n    main: __webpack_require__.m\n  }\n\n  var requiredModules = options.all ? { main: Object.keys(sources.main) } : getRequiredModules(sources, moduleId)\n\n  var src = ''\n\n  Object.keys(requiredModules).filter(function (m) { return m !== 'main' }).forEach(function (module) {\n    var entryModule = 0\n    while (requiredModules[module][entryModule]) {\n      entryModule++\n    }\n    requiredModules[module].push(entryModule)\n    sources[module][entryModule] = '(function(module, exports, __webpack_require__) { module.exports = __webpack_require__; })'\n    src = src + 'var ' + module + ' = (' + webpackBootstrapFunc.toString().replace('ENTRY_MODULE', JSON.stringify(entryModule)) + ')({' + requiredModules[module].map(function (id) { return '' + JSON.stringify(id) + ': ' + sources[module][id].toString() }).join(',') + '});\\n'\n  })\n\n  src = src + 'new ((' + webpackBootstrapFunc.toString().replace('ENTRY_MODULE', JSON.stringify(moduleId)) + ')({' + requiredModules.main.map(function (id) { return '' + JSON.stringify(id) + ': ' + sources.main[id].toString() }).join(',') + '}))(self);'\n\n  var blob = new window.Blob([src], { type: 'text/javascript' })\n  if (options.bare) { return blob }\n\n  var URL = window.URL || window.webkitURL || window.mozURL || window.msURL\n\n  var workerUrl = URL.createObjectURL(blob)\n  var worker = new window.Worker(workerUrl)\n  worker.objectURL = workerUrl\n\n  return worker\n}\n\n\n/***/ }),\n\n/***/ \"./src/crypt/decrypter.js\":\n/*!********************************************!*\\\n  !*** ./src/crypt/decrypter.js + 3 modules ***!\n  \\********************************************/\n/*! exports provided: default */\n/*! ModuleConcatenation bailout: Cannot concat with ./src/errors.ts because of ./src/hls.ts */\n/*! ModuleConcatenation bailout: Cannot concat with ./src/events.js because of ./src/hls.ts */\n/*! ModuleConcatenation bailout: Cannot concat with ./src/utils/get-self-scope.js because of ./src/hls.ts */\n/*! ModuleConcatenation bailout: Cannot concat with ./src/utils/logger.js because of ./src/hls.ts */\n/***/ (function(module, __webpack_exports__, __webpack_require__) {\n\n\"use strict\";\n// ESM COMPAT FLAG\n__webpack_require__.r(__webpack_exports__);\n\n// CONCATENATED MODULE: ./src/crypt/aes-crypto.js\nvar AESCrypto = /*#__PURE__*/function () {\n  function AESCrypto(subtle, iv) {\n    this.subtle = subtle;\n    this.aesIV = iv;\n  }\n\n  var _proto = AESCrypto.prototype;\n\n  _proto.decrypt = function decrypt(data, key) {\n    return this.subtle.decrypt({\n      name: 'AES-CBC',\n      iv: this.aesIV\n    }, key, data);\n  };\n\n  return AESCrypto;\n}();\n\n\n// CONCATENATED MODULE: ./src/crypt/fast-aes-key.js\nvar FastAESKey = /*#__PURE__*/function () {\n  function FastAESKey(subtle, key) {\n    this.subtle = subtle;\n    this.key = key;\n  }\n\n  var _proto = FastAESKey.prototype;\n\n  _proto.expandKey = function expandKey() {\n    return this.subtle.importKey('raw', this.key, {\n      name: 'AES-CBC'\n    }, false, ['encrypt', 'decrypt']);\n  };\n\n  return FastAESKey;\n}();\n\n/* harmony default export */ var fast_aes_key = (FastAESKey);\n// CONCATENATED MODULE: ./src/crypt/aes-decryptor.js\n// PKCS7\nfunction removePadding(buffer) {\n  var outputBytes = buffer.byteLength;\n  var paddingBytes = outputBytes && new DataView(buffer).getUint8(outputBytes - 1);\n\n  if (paddingBytes) {\n    return buffer.slice(0, outputBytes - paddingBytes);\n  } else {\n    return buffer;\n  }\n}\n\nvar AESDecryptor = /*#__PURE__*/function () {\n  function AESDecryptor() {\n    // Static after running initTable\n    this.rcon = [0x0, 0x1, 0x2, 0x4, 0x8, 0x10, 0x20, 0x40, 0x80, 0x1b, 0x36];\n    this.subMix = [new Uint32Array(256), new Uint32Array(256), new Uint32Array(256), new Uint32Array(256)];\n    this.invSubMix = [new Uint32Array(256), new Uint32Array(256), new Uint32Array(256), new Uint32Array(256)];\n    this.sBox = new Uint32Array(256);\n    this.invSBox = new Uint32Array(256); // Changes during runtime\n\n    this.key = new Uint32Array(0);\n    this.initTable();\n  } // Using view.getUint32() also swaps the byte order.\n\n\n  var _proto = AESDecryptor.prototype;\n\n  _proto.uint8ArrayToUint32Array_ = function uint8ArrayToUint32Array_(arrayBuffer) {\n    var view = new DataView(arrayBuffer);\n    var newArray = new Uint32Array(4);\n\n    for (var i = 0; i < 4; i++) {\n      newArray[i] = view.getUint32(i * 4);\n    }\n\n    return newArray;\n  };\n\n  _proto.initTable = function initTable() {\n    var sBox = this.sBox;\n    var invSBox = this.invSBox;\n    var subMix = this.subMix;\n    var subMix0 = subMix[0];\n    var subMix1 = subMix[1];\n    var subMix2 = subMix[2];\n    var subMix3 = subMix[3];\n    var invSubMix = this.invSubMix;\n    var invSubMix0 = invSubMix[0];\n    var invSubMix1 = invSubMix[1];\n    var invSubMix2 = invSubMix[2];\n    var invSubMix3 = invSubMix[3];\n    var d = new Uint32Array(256);\n    var x = 0;\n    var xi = 0;\n    var i = 0;\n\n    for (i = 0; i < 256; i++) {\n      if (i < 128) {\n        d[i] = i << 1;\n      } else {\n        d[i] = i << 1 ^ 0x11b;\n      }\n    }\n\n    for (i = 0; i < 256; i++) {\n      var sx = xi ^ xi << 1 ^ xi << 2 ^ xi << 3 ^ xi << 4;\n      sx = sx >>> 8 ^ sx & 0xff ^ 0x63;\n      sBox[x] = sx;\n      invSBox[sx] = x; // Compute multiplication\n\n      var x2 = d[x];\n      var x4 = d[x2];\n      var x8 = d[x4]; // Compute sub/invSub bytes, mix columns tables\n\n      var t = d[sx] * 0x101 ^ sx * 0x1010100;\n      subMix0[x] = t << 24 | t >>> 8;\n      subMix1[x] = t << 16 | t >>> 16;\n      subMix2[x] = t << 8 | t >>> 24;\n      subMix3[x] = t; // Compute inv sub bytes, inv mix columns tables\n\n      t = x8 * 0x1010101 ^ x4 * 0x10001 ^ x2 * 0x101 ^ x * 0x1010100;\n      invSubMix0[sx] = t << 24 | t >>> 8;\n      invSubMix1[sx] = t << 16 | t >>> 16;\n      invSubMix2[sx] = t << 8 | t >>> 24;\n      invSubMix3[sx] = t; // Compute next counter\n\n      if (!x) {\n        x = xi = 1;\n      } else {\n        x = x2 ^ d[d[d[x8 ^ x2]]];\n        xi ^= d[d[xi]];\n      }\n    }\n  };\n\n  _proto.expandKey = function expandKey(keyBuffer) {\n    // convert keyBuffer to Uint32Array\n    var key = this.uint8ArrayToUint32Array_(keyBuffer);\n    var sameKey = true;\n    var offset = 0;\n\n    while (offset < key.length && sameKey) {\n      sameKey = key[offset] === this.key[offset];\n      offset++;\n    }\n\n    if (sameKey) {\n      return;\n    }\n\n    this.key = key;\n    var keySize = this.keySize = key.length;\n\n    if (keySize !== 4 && keySize !== 6 && keySize !== 8) {\n      throw new Error('Invalid aes key size=' + keySize);\n    }\n\n    var ksRows = this.ksRows = (keySize + 6 + 1) * 4;\n    var ksRow;\n    var invKsRow;\n    var keySchedule = this.keySchedule = new Uint32Array(ksRows);\n    var invKeySchedule = this.invKeySchedule = new Uint32Array(ksRows);\n    var sbox = this.sBox;\n    var rcon = this.rcon;\n    var invSubMix = this.invSubMix;\n    var invSubMix0 = invSubMix[0];\n    var invSubMix1 = invSubMix[1];\n    var invSubMix2 = invSubMix[2];\n    var invSubMix3 = invSubMix[3];\n    var prev;\n    var t;\n\n    for (ksRow = 0; ksRow < ksRows; ksRow++) {\n      if (ksRow < keySize) {\n        prev = keySchedule[ksRow] = key[ksRow];\n        continue;\n      }\n\n      t = prev;\n\n      if (ksRow % keySize === 0) {\n        // Rot word\n        t = t << 8 | t >>> 24; // Sub word\n\n        t = sbox[t >>> 24] << 24 | sbox[t >>> 16 & 0xff] << 16 | sbox[t >>> 8 & 0xff] << 8 | sbox[t & 0xff]; // Mix Rcon\n\n        t ^= rcon[ksRow / keySize | 0] << 24;\n      } else if (keySize > 6 && ksRow % keySize === 4) {\n        // Sub word\n        t = sbox[t >>> 24] << 24 | sbox[t >>> 16 & 0xff] << 16 | sbox[t >>> 8 & 0xff] << 8 | sbox[t & 0xff];\n      }\n\n      keySchedule[ksRow] = prev = (keySchedule[ksRow - keySize] ^ t) >>> 0;\n    }\n\n    for (invKsRow = 0; invKsRow < ksRows; invKsRow++) {\n      ksRow = ksRows - invKsRow;\n\n      if (invKsRow & 3) {\n        t = keySchedule[ksRow];\n      } else {\n        t = keySchedule[ksRow - 4];\n      }\n\n      if (invKsRow < 4 || ksRow <= 4) {\n        invKeySchedule[invKsRow] = t;\n      } else {\n        invKeySchedule[invKsRow] = invSubMix0[sbox[t >>> 24]] ^ invSubMix1[sbox[t >>> 16 & 0xff]] ^ invSubMix2[sbox[t >>> 8 & 0xff]] ^ invSubMix3[sbox[t & 0xff]];\n      }\n\n      invKeySchedule[invKsRow] = invKeySchedule[invKsRow] >>> 0;\n    }\n  } // Adding this as a method greatly improves performance.\n  ;\n\n  _proto.networkToHostOrderSwap = function networkToHostOrderSwap(word) {\n    return word << 24 | (word & 0xff00) << 8 | (word & 0xff0000) >> 8 | word >>> 24;\n  };\n\n  _proto.decrypt = function decrypt(inputArrayBuffer, offset, aesIV, removePKCS7Padding) {\n    var nRounds = this.keySize + 6;\n    var invKeySchedule = this.invKeySchedule;\n    var invSBOX = this.invSBox;\n    var invSubMix = this.invSubMix;\n    var invSubMix0 = invSubMix[0];\n    var invSubMix1 = invSubMix[1];\n    var invSubMix2 = invSubMix[2];\n    var invSubMix3 = invSubMix[3];\n    var initVector = this.uint8ArrayToUint32Array_(aesIV);\n    var initVector0 = initVector[0];\n    var initVector1 = initVector[1];\n    var initVector2 = initVector[2];\n    var initVector3 = initVector[3];\n    var inputInt32 = new Int32Array(inputArrayBuffer);\n    var outputInt32 = new Int32Array(inputInt32.length);\n    var t0, t1, t2, t3;\n    var s0, s1, s2, s3;\n    var inputWords0, inputWords1, inputWords2, inputWords3;\n    var ksRow, i;\n    var swapWord = this.networkToHostOrderSwap;\n\n    while (offset < inputInt32.length) {\n      inputWords0 = swapWord(inputInt32[offset]);\n      inputWords1 = swapWord(inputInt32[offset + 1]);\n      inputWords2 = swapWord(inputInt32[offset + 2]);\n      inputWords3 = swapWord(inputInt32[offset + 3]);\n      s0 = inputWords0 ^ invKeySchedule[0];\n      s1 = inputWords3 ^ invKeySchedule[1];\n      s2 = inputWords2 ^ invKeySchedule[2];\n      s3 = inputWords1 ^ invKeySchedule[3];\n      ksRow = 4; // Iterate through the rounds of decryption\n\n      for (i = 1; i < nRounds; i++) {\n        t0 = invSubMix0[s0 >>> 24] ^ invSubMix1[s1 >> 16 & 0xff] ^ invSubMix2[s2 >> 8 & 0xff] ^ invSubMix3[s3 & 0xff] ^ invKeySchedule[ksRow];\n        t1 = invSubMix0[s1 >>> 24] ^ invSubMix1[s2 >> 16 & 0xff] ^ invSubMix2[s3 >> 8 & 0xff] ^ invSubMix3[s0 & 0xff] ^ invKeySchedule[ksRow + 1];\n        t2 = invSubMix0[s2 >>> 24] ^ invSubMix1[s3 >> 16 & 0xff] ^ invSubMix2[s0 >> 8 & 0xff] ^ invSubMix3[s1 & 0xff] ^ invKeySchedule[ksRow + 2];\n        t3 = invSubMix0[s3 >>> 24] ^ invSubMix1[s0 >> 16 & 0xff] ^ invSubMix2[s1 >> 8 & 0xff] ^ invSubMix3[s2 & 0xff] ^ invKeySchedule[ksRow + 3]; // Update state\n\n        s0 = t0;\n        s1 = t1;\n        s2 = t2;\n        s3 = t3;\n        ksRow = ksRow + 4;\n      } // Shift rows, sub bytes, add round key\n\n\n      t0 = invSBOX[s0 >>> 24] << 24 ^ invSBOX[s1 >> 16 & 0xff] << 16 ^ invSBOX[s2 >> 8 & 0xff] << 8 ^ invSBOX[s3 & 0xff] ^ invKeySchedule[ksRow];\n      t1 = invSBOX[s1 >>> 24] << 24 ^ invSBOX[s2 >> 16 & 0xff] << 16 ^ invSBOX[s3 >> 8 & 0xff] << 8 ^ invSBOX[s0 & 0xff] ^ invKeySchedule[ksRow + 1];\n      t2 = invSBOX[s2 >>> 24] << 24 ^ invSBOX[s3 >> 16 & 0xff] << 16 ^ invSBOX[s0 >> 8 & 0xff] << 8 ^ invSBOX[s1 & 0xff] ^ invKeySchedule[ksRow + 2];\n      t3 = invSBOX[s3 >>> 24] << 24 ^ invSBOX[s0 >> 16 & 0xff] << 16 ^ invSBOX[s1 >> 8 & 0xff] << 8 ^ invSBOX[s2 & 0xff] ^ invKeySchedule[ksRow + 3];\n      ksRow = ksRow + 3; // Write\n\n      outputInt32[offset] = swapWord(t0 ^ initVector0);\n      outputInt32[offset + 1] = swapWord(t3 ^ initVector1);\n      outputInt32[offset + 2] = swapWord(t2 ^ initVector2);\n      outputInt32[offset + 3] = swapWord(t1 ^ initVector3); // reset initVector to last 4 unsigned int\n\n      initVector0 = inputWords0;\n      initVector1 = inputWords1;\n      initVector2 = inputWords2;\n      initVector3 = inputWords3;\n      offset = offset + 4;\n    }\n\n    return removePKCS7Padding ? removePadding(outputInt32.buffer) : outputInt32.buffer;\n  };\n\n  _proto.destroy = function destroy() {\n    this.key = undefined;\n    this.keySize = undefined;\n    this.ksRows = undefined;\n    this.sBox = undefined;\n    this.invSBox = undefined;\n    this.subMix = undefined;\n    this.invSubMix = undefined;\n    this.keySchedule = undefined;\n    this.invKeySchedule = undefined;\n    this.rcon = undefined;\n  };\n\n  return AESDecryptor;\n}();\n\n/* harmony default export */ var aes_decryptor = (AESDecryptor);\n// EXTERNAL MODULE: ./src/errors.ts\nvar errors = __webpack_require__(\"./src/errors.ts\");\n\n// EXTERNAL MODULE: ./src/utils/logger.js\nvar logger = __webpack_require__(\"./src/utils/logger.js\");\n\n// EXTERNAL MODULE: ./src/events.js\nvar events = __webpack_require__(\"./src/events.js\");\n\n// EXTERNAL MODULE: ./src/utils/get-self-scope.js\nvar get_self_scope = __webpack_require__(\"./src/utils/get-self-scope.js\");\n\n// CONCATENATED MODULE: ./src/crypt/decrypter.js\n\n\n\n\n\n\n // see https://stackoverflow.com/a/11237259/589493\n\nvar global = Object(get_self_scope[\"getSelfScope\"])(); // safeguard for code that might run both on worker and main thread\n\nvar decrypter_Decrypter = /*#__PURE__*/function () {\n  function Decrypter(observer, config, _temp) {\n    var _ref = _temp === void 0 ? {} : _temp,\n        _ref$removePKCS7Paddi = _ref.removePKCS7Padding,\n        removePKCS7Padding = _ref$removePKCS7Paddi === void 0 ? true : _ref$removePKCS7Paddi;\n\n    this.logEnabled = true;\n    this.observer = observer;\n    this.config = config;\n    this.removePKCS7Padding = removePKCS7Padding; // built in decryptor expects PKCS7 padding\n\n    if (removePKCS7Padding) {\n      try {\n        var browserCrypto = global.crypto;\n\n        if (browserCrypto) {\n          this.subtle = browserCrypto.subtle || browserCrypto.webkitSubtle;\n        }\n      } catch (e) {}\n    }\n\n    this.disableWebCrypto = !this.subtle;\n  }\n\n  var _proto = Decrypter.prototype;\n\n  _proto.isSync = function isSync() {\n    return this.disableWebCrypto && this.config.enableSoftwareAES;\n  };\n\n  _proto.decrypt = function decrypt(data, key, iv, callback) {\n    var _this = this;\n\n    if (this.disableWebCrypto && this.config.enableSoftwareAES) {\n      if (this.logEnabled) {\n        logger[\"logger\"].log('JS AES decrypt');\n        this.logEnabled = false;\n      }\n\n      var decryptor = this.decryptor;\n\n      if (!decryptor) {\n        this.decryptor = decryptor = new aes_decryptor();\n      }\n\n      decryptor.expandKey(key);\n      callback(decryptor.decrypt(data, 0, iv, this.removePKCS7Padding));\n    } else {\n      if (this.logEnabled) {\n        logger[\"logger\"].log('WebCrypto AES decrypt');\n        this.logEnabled = false;\n      }\n\n      var subtle = this.subtle;\n\n      if (this.key !== key) {\n        this.key = key;\n        this.fastAesKey = new fast_aes_key(subtle, key);\n      }\n\n      this.fastAesKey.expandKey().then(function (aesKey) {\n        // decrypt using web crypto\n        var crypto = new AESCrypto(subtle, iv);\n        crypto.decrypt(data, aesKey).catch(function (err) {\n          _this.onWebCryptoError(err, data, key, iv, callback);\n        }).then(function (result) {\n          callback(result);\n        });\n      }).catch(function (err) {\n        _this.onWebCryptoError(err, data, key, iv, callback);\n      });\n    }\n  };\n\n  _proto.onWebCryptoError = function onWebCryptoError(err, data, key, iv, callback) {\n    if (this.config.enableSoftwareAES) {\n      logger[\"logger\"].log('WebCrypto Error, disable WebCrypto API');\n      this.disableWebCrypto = true;\n      this.logEnabled = true;\n      this.decrypt(data, key, iv, callback);\n    } else {\n      logger[\"logger\"].error(\"decrypting error : \" + err.message);\n      this.observer.trigger(events[\"default\"].ERROR, {\n        type: errors[\"ErrorTypes\"].MEDIA_ERROR,\n        details: errors[\"ErrorDetails\"].FRAG_DECRYPT_ERROR,\n        fatal: true,\n        reason: err.message\n      });\n    }\n  };\n\n  _proto.destroy = function destroy() {\n    var decryptor = this.decryptor;\n\n    if (decryptor) {\n      decryptor.destroy();\n      this.decryptor = undefined;\n    }\n  };\n\n  return Decrypter;\n}();\n\n/* harmony default export */ var decrypter = __webpack_exports__[\"default\"] = (decrypter_Decrypter);\n\n/***/ }),\n\n/***/ \"./src/demux/demuxer-inline.js\":\n/*!**************************************************!*\\\n  !*** ./src/demux/demuxer-inline.js + 12 modules ***!\n  \\**************************************************/\n/*! exports provided: default */\n/*! ModuleConcatenation bailout: Cannot concat with ./src/crypt/decrypter.js because of ./src/hls.ts */\n/*! ModuleConcatenation bailout: Cannot concat with ./src/demux/id3.js because of ./src/hls.ts */\n/*! ModuleConcatenation bailout: Cannot concat with ./src/demux/mp4demuxer.js because of ./src/hls.ts */\n/*! ModuleConcatenation bailout: Cannot concat with ./src/errors.ts because of ./src/hls.ts */\n/*! ModuleConcatenation bailout: Cannot concat with ./src/events.js because of ./src/hls.ts */\n/*! ModuleConcatenation bailout: Cannot concat with ./src/polyfills/number-isFinite.js because of ./src/hls.ts */\n/*! ModuleConcatenation bailout: Cannot concat with ./src/utils/get-self-scope.js because of ./src/hls.ts */\n/*! ModuleConcatenation bailout: Cannot concat with ./src/utils/logger.js because of ./src/hls.ts */\n/***/ (function(module, __webpack_exports__, __webpack_require__) {\n\n\"use strict\";\n// ESM COMPAT FLAG\n__webpack_require__.r(__webpack_exports__);\n\n// EXTERNAL MODULE: ./src/events.js\nvar events = __webpack_require__(\"./src/events.js\");\n\n// EXTERNAL MODULE: ./src/errors.ts\nvar errors = __webpack_require__(\"./src/errors.ts\");\n\n// EXTERNAL MODULE: ./src/crypt/decrypter.js + 3 modules\nvar crypt_decrypter = __webpack_require__(\"./src/crypt/decrypter.js\");\n\n// EXTERNAL MODULE: ./src/polyfills/number-isFinite.js\nvar number_isFinite = __webpack_require__(\"./src/polyfills/number-isFinite.js\");\n\n// EXTERNAL MODULE: ./src/utils/logger.js\nvar logger = __webpack_require__(\"./src/utils/logger.js\");\n\n// EXTERNAL MODULE: ./src/utils/get-self-scope.js\nvar get_self_scope = __webpack_require__(\"./src/utils/get-self-scope.js\");\n\n// CONCATENATED MODULE: ./src/demux/adts.js\n/**\n * ADTS parser helper\n * @link https://wiki.multimedia.cx/index.php?title=ADTS\n */\n\n\n\n\nfunction getAudioConfig(observer, data, offset, audioCodec) {\n  var adtsObjectType,\n      // :int\n  adtsSampleingIndex,\n      // :int\n  adtsExtensionSampleingIndex,\n      // :int\n  adtsChanelConfig,\n      // :int\n  config,\n      userAgent = navigator.userAgent.toLowerCase(),\n      manifestCodec = audioCodec,\n      adtsSampleingRates = [96000, 88200, 64000, 48000, 44100, 32000, 24000, 22050, 16000, 12000, 11025, 8000, 7350]; // byte 2\n\n  adtsObjectType = ((data[offset + 2] & 0xC0) >>> 6) + 1;\n  adtsSampleingIndex = (data[offset + 2] & 0x3C) >>> 2;\n\n  if (adtsSampleingIndex > adtsSampleingRates.length - 1) {\n    observer.trigger(events[\"default\"].ERROR, {\n      type: errors[\"ErrorTypes\"].MEDIA_ERROR,\n      details: errors[\"ErrorDetails\"].FRAG_PARSING_ERROR,\n      fatal: true,\n      reason: \"invalid ADTS sampling index:\" + adtsSampleingIndex\n    });\n    return;\n  }\n\n  adtsChanelConfig = (data[offset + 2] & 0x01) << 2; // byte 3\n\n  adtsChanelConfig |= (data[offset + 3] & 0xC0) >>> 6;\n  logger[\"logger\"].log(\"manifest codec:\" + audioCodec + \",ADTS data:type:\" + adtsObjectType + \",sampleingIndex:\" + adtsSampleingIndex + \"[\" + adtsSampleingRates[adtsSampleingIndex] + \"Hz],channelConfig:\" + adtsChanelConfig); // firefox: freq less than 24kHz = AAC SBR (HE-AAC)\n\n  if (/firefox/i.test(userAgent)) {\n    if (adtsSampleingIndex >= 6) {\n      adtsObjectType = 5;\n      config = new Array(4); // HE-AAC uses SBR (Spectral Band Replication) , high frequencies are constructed from low frequencies\n      // there is a factor 2 between frame sample rate and output sample rate\n      // multiply frequency by 2 (see table below, equivalent to substract 3)\n\n      adtsExtensionSampleingIndex = adtsSampleingIndex - 3;\n    } else {\n      adtsObjectType = 2;\n      config = new Array(2);\n      adtsExtensionSampleingIndex = adtsSampleingIndex;\n    } // Android : always use AAC\n\n  } else if (userAgent.indexOf('android') !== -1) {\n    adtsObjectType = 2;\n    config = new Array(2);\n    adtsExtensionSampleingIndex = adtsSampleingIndex;\n  } else {\n    /*  for other browsers (Chrome/Vivaldi/Opera ...)\n        always force audio type to be HE-AAC SBR, as some browsers do not support audio codec switch properly (like Chrome ...)\n    */\n    adtsObjectType = 5;\n    config = new Array(4); // if (manifest codec is HE-AAC or HE-AACv2) OR (manifest codec not specified AND frequency less than 24kHz)\n\n    if (audioCodec && (audioCodec.indexOf('mp4a.40.29') !== -1 || audioCodec.indexOf('mp4a.40.5') !== -1) || !audioCodec && adtsSampleingIndex >= 6) {\n      // HE-AAC uses SBR (Spectral Band Replication) , high frequencies are constructed from low frequencies\n      // there is a factor 2 between frame sample rate and output sample rate\n      // multiply frequency by 2 (see table below, equivalent to substract 3)\n      adtsExtensionSampleingIndex = adtsSampleingIndex - 3;\n    } else {\n      // if (manifest codec is AAC) AND (frequency less than 24kHz AND nb channel is 1) OR (manifest codec not specified and mono audio)\n      // Chrome fails to play back with low frequency AAC LC mono when initialized with HE-AAC.  This is not a problem with stereo.\n      if (audioCodec && audioCodec.indexOf('mp4a.40.2') !== -1 && (adtsSampleingIndex >= 6 && adtsChanelConfig === 1 || /vivaldi/i.test(userAgent)) || !audioCodec && adtsChanelConfig === 1) {\n        adtsObjectType = 2;\n        config = new Array(2);\n      }\n\n      adtsExtensionSampleingIndex = adtsSampleingIndex;\n    }\n  }\n  /* refer to http://wiki.multimedia.cx/index.php?title=MPEG-4_Audio#Audio_Specific_Config\n      ISO 14496-3 (AAC).pdf - Table 1.13 — Syntax of AudioSpecificConfig()\n    Audio Profile / Audio Object Type\n    0: Null\n    1: AAC Main\n    2: AAC LC (Low Complexity)\n    3: AAC SSR (Scalable Sample Rate)\n    4: AAC LTP (Long Term Prediction)\n    5: SBR (Spectral Band Replication)\n    6: AAC Scalable\n   sampling freq\n    0: 96000 Hz\n    1: 88200 Hz\n    2: 64000 Hz\n    3: 48000 Hz\n    4: 44100 Hz\n    5: 32000 Hz\n    6: 24000 Hz\n    7: 22050 Hz\n    8: 16000 Hz\n    9: 12000 Hz\n    10: 11025 Hz\n    11: 8000 Hz\n    12: 7350 Hz\n    13: Reserved\n    14: Reserved\n    15: frequency is written explictly\n    Channel Configurations\n    These are the channel configurations:\n    0: Defined in AOT Specifc Config\n    1: 1 channel: front-center\n    2: 2 channels: front-left, front-right\n  */\n  // audioObjectType = profile => profile, the MPEG-4 Audio Object Type minus 1\n\n\n  config[0] = adtsObjectType << 3; // samplingFrequencyIndex\n\n  config[0] |= (adtsSampleingIndex & 0x0E) >> 1;\n  config[1] |= (adtsSampleingIndex & 0x01) << 7; // channelConfiguration\n\n  config[1] |= adtsChanelConfig << 3;\n\n  if (adtsObjectType === 5) {\n    // adtsExtensionSampleingIndex\n    config[1] |= (adtsExtensionSampleingIndex & 0x0E) >> 1;\n    config[2] = (adtsExtensionSampleingIndex & 0x01) << 7; // adtsObjectType (force to 2, chrome is checking that object type is less than 5 ???\n    //    https://chromium.googlesource.com/chromium/src.git/+/master/media/formats/mp4/aac.cc\n\n    config[2] |= 2 << 2;\n    config[3] = 0;\n  }\n\n  return {\n    config: config,\n    samplerate: adtsSampleingRates[adtsSampleingIndex],\n    channelCount: adtsChanelConfig,\n    codec: 'mp4a.40.' + adtsObjectType,\n    manifestCodec: manifestCodec\n  };\n}\nfunction isHeaderPattern(data, offset) {\n  return data[offset] === 0xff && (data[offset + 1] & 0xf6) === 0xf0;\n}\nfunction getHeaderLength(data, offset) {\n  return data[offset + 1] & 0x01 ? 7 : 9;\n}\nfunction getFullFrameLength(data, offset) {\n  return (data[offset + 3] & 0x03) << 11 | data[offset + 4] << 3 | (data[offset + 5] & 0xE0) >>> 5;\n}\nfunction isHeader(data, offset) {\n  // Look for ADTS header | 1111 1111 | 1111 X00X | where X can be either 0 or 1\n  // Layer bits (position 14 and 15) in header should be always 0 for ADTS\n  // More info https://wiki.multimedia.cx/index.php?title=ADTS\n  if (offset + 1 < data.length && isHeaderPattern(data, offset)) {\n    return true;\n  }\n\n  return false;\n}\nfunction adts_probe(data, offset) {\n  // same as isHeader but we also check that ADTS frame follows last ADTS frame\n  // or end of data is reached\n  if (isHeader(data, offset)) {\n    // ADTS header Length\n    var headerLength = getHeaderLength(data, offset);\n\n    if (offset + headerLength >= data.length) {\n      return false;\n    } // ADTS frame Length\n\n\n    var frameLength = getFullFrameLength(data, offset);\n\n    if (frameLength <= headerLength) {\n      return false;\n    }\n\n    var newOffset = offset + frameLength;\n\n    if (newOffset === data.length || newOffset + 1 < data.length && isHeaderPattern(data, newOffset)) {\n      return true;\n    }\n  }\n\n  return false;\n}\nfunction initTrackConfig(track, observer, data, offset, audioCodec) {\n  if (!track.samplerate) {\n    var config = getAudioConfig(observer, data, offset, audioCodec);\n    track.config = config.config;\n    track.samplerate = config.samplerate;\n    track.channelCount = config.channelCount;\n    track.codec = config.codec;\n    track.manifestCodec = config.manifestCodec;\n    logger[\"logger\"].log(\"parsed codec:\" + track.codec + \",rate:\" + config.samplerate + \",nb channel:\" + config.channelCount);\n  }\n}\nfunction getFrameDuration(samplerate) {\n  return 1024 * 90000 / samplerate;\n}\nfunction parseFrameHeader(data, offset, pts, frameIndex, frameDuration) {\n  var headerLength, frameLength, stamp;\n  var length = data.length; // The protection skip bit tells us if we have 2 bytes of CRC data at the end of the ADTS header\n\n  headerLength = getHeaderLength(data, offset); // retrieve frame size\n\n  frameLength = getFullFrameLength(data, offset);\n  frameLength -= headerLength;\n\n  if (frameLength > 0 && offset + headerLength + frameLength <= length) {\n    stamp = pts + frameIndex * frameDuration; // logger.log(`AAC frame, offset/length/total/pts:${offset+headerLength}/${frameLength}/${data.byteLength}/${(stamp/90).toFixed(0)}`);\n\n    return {\n      headerLength: headerLength,\n      frameLength: frameLength,\n      stamp: stamp\n    };\n  }\n\n  return undefined;\n}\nfunction appendFrame(track, data, offset, pts, frameIndex) {\n  var frameDuration = getFrameDuration(track.samplerate);\n  var header = parseFrameHeader(data, offset, pts, frameIndex, frameDuration);\n\n  if (header) {\n    var stamp = header.stamp;\n    var headerLength = header.headerLength;\n    var frameLength = header.frameLength; // logger.log(`AAC frame, offset/length/total/pts:${offset+headerLength}/${frameLength}/${data.byteLength}/${(stamp/90).toFixed(0)}`);\n\n    var aacSample = {\n      unit: data.subarray(offset + headerLength, offset + headerLength + frameLength),\n      pts: stamp,\n      dts: stamp\n    };\n    track.samples.push(aacSample);\n    return {\n      sample: aacSample,\n      length: frameLength + headerLength\n    };\n  }\n\n  return undefined;\n}\n// EXTERNAL MODULE: ./src/demux/id3.js\nvar id3 = __webpack_require__(\"./src/demux/id3.js\");\n\n// CONCATENATED MODULE: ./src/demux/aacdemuxer.js\n\n\n/**\n * AAC demuxer\n */\n\n\n\n\nvar aacdemuxer_AACDemuxer = /*#__PURE__*/function () {\n  function AACDemuxer(observer, remuxer, config) {\n    this.observer = observer;\n    this.config = config;\n    this.remuxer = remuxer;\n  }\n\n  var _proto = AACDemuxer.prototype;\n\n  _proto.resetInitSegment = function resetInitSegment(initSegment, audioCodec, videoCodec, duration) {\n    this._audioTrack = {\n      container: 'audio/adts',\n      type: 'audio',\n      id: 0,\n      sequenceNumber: 0,\n      isAAC: true,\n      samples: [],\n      len: 0,\n      manifestCodec: audioCodec,\n      duration: duration,\n      inputTimeScale: 90000\n    };\n  };\n\n  _proto.resetTimeStamp = function resetTimeStamp() {};\n\n  AACDemuxer.probe = function probe(data) {\n    if (!data) {\n      return false;\n    } // Check for the ADTS sync word\n    // Look for ADTS header | 1111 1111 | 1111 X00X | where X can be either 0 or 1\n    // Layer bits (position 14 and 15) in header should be always 0 for ADTS\n    // More info https://wiki.multimedia.cx/index.php?title=ADTS\n\n\n    var id3Data = id3[\"default\"].getID3Data(data, 0) || [];\n    var offset = id3Data.length;\n\n    for (var length = data.length; offset < length; offset++) {\n      if (adts_probe(data, offset)) {\n        logger[\"logger\"].log('ADTS sync word found !');\n        return true;\n      }\n    }\n\n    return false;\n  } // feed incoming data to the front of the parsing pipeline\n  ;\n\n  _proto.append = function append(data, timeOffset, contiguous, accurateTimeOffset) {\n    var track = this._audioTrack;\n    var id3Data = id3[\"default\"].getID3Data(data, 0) || [];\n    var timestamp = id3[\"default\"].getTimeStamp(id3Data);\n    var pts = Object(number_isFinite[\"isFiniteNumber\"])(timestamp) ? timestamp * 90 : timeOffset * 90000;\n    var frameIndex = 0;\n    var stamp = pts;\n    var length = data.length;\n    var offset = id3Data.length;\n    var id3Samples = [{\n      pts: stamp,\n      dts: stamp,\n      data: id3Data\n    }];\n\n    while (offset < length - 1) {\n      if (isHeader(data, offset) && offset + 5 < length) {\n        initTrackConfig(track, this.observer, data, offset, track.manifestCodec);\n        var frame = appendFrame(track, data, offset, pts, frameIndex);\n\n        if (frame) {\n          offset += frame.length;\n          stamp = frame.sample.pts;\n          frameIndex++;\n        } else {\n          logger[\"logger\"].log('Unable to parse AAC frame');\n          break;\n        }\n      } else if (id3[\"default\"].isHeader(data, offset)) {\n        id3Data = id3[\"default\"].getID3Data(data, offset);\n        id3Samples.push({\n          pts: stamp,\n          dts: stamp,\n          data: id3Data\n        });\n        offset += id3Data.length;\n      } else {\n        // nothing found, keep looking\n        offset++;\n      }\n    }\n\n    this.remuxer.remux(track, {\n      samples: []\n    }, {\n      samples: id3Samples,\n      inputTimeScale: 90000\n    }, {\n      samples: []\n    }, timeOffset, contiguous, accurateTimeOffset);\n  };\n\n  _proto.destroy = function destroy() {};\n\n  return AACDemuxer;\n}();\n\n/* harmony default export */ var aacdemuxer = (aacdemuxer_AACDemuxer);\n// EXTERNAL MODULE: ./src/demux/mp4demuxer.js\nvar mp4demuxer = __webpack_require__(\"./src/demux/mp4demuxer.js\");\n\n// CONCATENATED MODULE: ./src/demux/mpegaudio.js\n/**\n *  MPEG parser helper\n */\nvar MpegAudio = {\n  BitratesMap: [32, 64, 96, 128, 160, 192, 224, 256, 288, 320, 352, 384, 416, 448, 32, 48, 56, 64, 80, 96, 112, 128, 160, 192, 224, 256, 320, 384, 32, 40, 48, 56, 64, 80, 96, 112, 128, 160, 192, 224, 256, 320, 32, 48, 56, 64, 80, 96, 112, 128, 144, 160, 176, 192, 224, 256, 8, 16, 24, 32, 40, 48, 56, 64, 80, 96, 112, 128, 144, 160],\n  SamplingRateMap: [44100, 48000, 32000, 22050, 24000, 16000, 11025, 12000, 8000],\n  SamplesCoefficients: [// MPEG 2.5\n  [0, // Reserved\n  72, // Layer3\n  144, // Layer2\n  12 // Layer1\n  ], // Reserved\n  [0, // Reserved\n  0, // Layer3\n  0, // Layer2\n  0 // Layer1\n  ], // MPEG 2\n  [0, // Reserved\n  72, // Layer3\n  144, // Layer2\n  12 // Layer1\n  ], // MPEG 1\n  [0, // Reserved\n  144, // Layer3\n  144, // Layer2\n  12 // Layer1\n  ]],\n  BytesInSlot: [0, // Reserved\n  1, // Layer3\n  1, // Layer2\n  4 // Layer1\n  ],\n  appendFrame: function appendFrame(track, data, offset, pts, frameIndex) {\n    // Using http://www.datavoyage.com/mpgscript/mpeghdr.htm as a reference\n    if (offset + 24 > data.length) {\n      return undefined;\n    }\n\n    var header = this.parseHeader(data, offset);\n\n    if (header && offset + header.frameLength <= data.length) {\n      var frameDuration = header.samplesPerFrame * 90000 / header.sampleRate;\n      var stamp = pts + frameIndex * frameDuration;\n      var sample = {\n        unit: data.subarray(offset, offset + header.frameLength),\n        pts: stamp,\n        dts: stamp\n      };\n      track.config = [];\n      track.channelCount = header.channelCount;\n      track.samplerate = header.sampleRate;\n      track.samples.push(sample);\n      return {\n        sample: sample,\n        length: header.frameLength\n      };\n    }\n\n    return undefined;\n  },\n  parseHeader: function parseHeader(data, offset) {\n    var headerB = data[offset + 1] >> 3 & 3;\n    var headerC = data[offset + 1] >> 1 & 3;\n    var headerE = data[offset + 2] >> 4 & 15;\n    var headerF = data[offset + 2] >> 2 & 3;\n    var headerG = data[offset + 2] >> 1 & 1;\n\n    if (headerB !== 1 && headerE !== 0 && headerE !== 15 && headerF !== 3) {\n      var columnInBitrates = headerB === 3 ? 3 - headerC : headerC === 3 ? 3 : 4;\n      var bitRate = MpegAudio.BitratesMap[columnInBitrates * 14 + headerE - 1] * 1000;\n      var columnInSampleRates = headerB === 3 ? 0 : headerB === 2 ? 1 : 2;\n      var sampleRate = MpegAudio.SamplingRateMap[columnInSampleRates * 3 + headerF];\n      var channelCount = data[offset + 3] >> 6 === 3 ? 1 : 2; // If bits of channel mode are `11` then it is a single channel (Mono)\n\n      var sampleCoefficient = MpegAudio.SamplesCoefficients[headerB][headerC];\n      var bytesInSlot = MpegAudio.BytesInSlot[headerC];\n      var samplesPerFrame = sampleCoefficient * 8 * bytesInSlot;\n      var frameLength = parseInt(sampleCoefficient * bitRate / sampleRate + headerG, 10) * bytesInSlot;\n      return {\n        sampleRate: sampleRate,\n        channelCount: channelCount,\n        frameLength: frameLength,\n        samplesPerFrame: samplesPerFrame\n      };\n    }\n\n    return undefined;\n  },\n  isHeaderPattern: function isHeaderPattern(data, offset) {\n    return data[offset] === 0xff && (data[offset + 1] & 0xe0) === 0xe0 && (data[offset + 1] & 0x06) !== 0x00;\n  },\n  isHeader: function isHeader(data, offset) {\n    // Look for MPEG header | 1111 1111 | 111X XYZX | where X can be either 0 or 1 and Y or Z should be 1\n    // Layer bits (position 14 and 15) in header should be always different from 0 (Layer I or Layer II or Layer III)\n    // More info http://www.mp3-tech.org/programmer/frame_header.html\n    if (offset + 1 < data.length && this.isHeaderPattern(data, offset)) {\n      return true;\n    }\n\n    return false;\n  },\n  probe: function probe(data, offset) {\n    // same as isHeader but we also check that MPEG frame follows last MPEG frame\n    // or end of data is reached\n    if (offset + 1 < data.length && this.isHeaderPattern(data, offset)) {\n      // MPEG header Length\n      var headerLength = 4; // MPEG frame Length\n\n      var header = this.parseHeader(data, offset);\n      var frameLength = headerLength;\n\n      if (header && header.frameLength) {\n        frameLength = header.frameLength;\n      }\n\n      var newOffset = offset + frameLength;\n\n      if (newOffset === data.length || newOffset + 1 < data.length && this.isHeaderPattern(data, newOffset)) {\n        return true;\n      }\n    }\n\n    return false;\n  }\n};\n/* harmony default export */ var mpegaudio = (MpegAudio);\n// CONCATENATED MODULE: ./src/demux/exp-golomb.js\n/**\n * Parser for exponential Golomb codes, a variable-bitwidth number encoding scheme used by h264.\n*/\n\n\nvar exp_golomb_ExpGolomb = /*#__PURE__*/function () {\n  function ExpGolomb(data) {\n    this.data = data; // the number of bytes left to examine in this.data\n\n    this.bytesAvailable = data.byteLength; // the current word being examined\n\n    this.word = 0; // :uint\n    // the number of bits left to examine in the current word\n\n    this.bitsAvailable = 0; // :uint\n  } // ():void\n\n\n  var _proto = ExpGolomb.prototype;\n\n  _proto.loadWord = function loadWord() {\n    var data = this.data,\n        bytesAvailable = this.bytesAvailable,\n        position = data.byteLength - bytesAvailable,\n        workingBytes = new Uint8Array(4),\n        availableBytes = Math.min(4, bytesAvailable);\n\n    if (availableBytes === 0) {\n      throw new Error('no bytes available');\n    }\n\n    workingBytes.set(data.subarray(position, position + availableBytes));\n    this.word = new DataView(workingBytes.buffer).getUint32(0); // track the amount of this.data that has been processed\n\n    this.bitsAvailable = availableBytes * 8;\n    this.bytesAvailable -= availableBytes;\n  } // (count:int):void\n  ;\n\n  _proto.skipBits = function skipBits(count) {\n    var skipBytes; // :int\n\n    if (this.bitsAvailable > count) {\n      this.word <<= count;\n      this.bitsAvailable -= count;\n    } else {\n      count -= this.bitsAvailable;\n      skipBytes = count >> 3;\n      count -= skipBytes >> 3;\n      this.bytesAvailable -= skipBytes;\n      this.loadWord();\n      this.word <<= count;\n      this.bitsAvailable -= count;\n    }\n  } // (size:int):uint\n  ;\n\n  _proto.readBits = function readBits(size) {\n    var bits = Math.min(this.bitsAvailable, size),\n        // :uint\n    valu = this.word >>> 32 - bits; // :uint\n\n    if (size > 32) {\n      logger[\"logger\"].error('Cannot read more than 32 bits at a time');\n    }\n\n    this.bitsAvailable -= bits;\n\n    if (this.bitsAvailable > 0) {\n      this.word <<= bits;\n    } else if (this.bytesAvailable > 0) {\n      this.loadWord();\n    }\n\n    bits = size - bits;\n\n    if (bits > 0 && this.bitsAvailable) {\n      return valu << bits | this.readBits(bits);\n    } else {\n      return valu;\n    }\n  } // ():uint\n  ;\n\n  _proto.skipLZ = function skipLZ() {\n    var leadingZeroCount; // :uint\n\n    for (leadingZeroCount = 0; leadingZeroCount < this.bitsAvailable; ++leadingZeroCount) {\n      if ((this.word & 0x80000000 >>> leadingZeroCount) !== 0) {\n        // the first bit of working word is 1\n        this.word <<= leadingZeroCount;\n        this.bitsAvailable -= leadingZeroCount;\n        return leadingZeroCount;\n      }\n    } // we exhausted word and still have not found a 1\n\n\n    this.loadWord();\n    return leadingZeroCount + this.skipLZ();\n  } // ():void\n  ;\n\n  _proto.skipUEG = function skipUEG() {\n    this.skipBits(1 + this.skipLZ());\n  } // ():void\n  ;\n\n  _proto.skipEG = function skipEG() {\n    this.skipBits(1 + this.skipLZ());\n  } // ():uint\n  ;\n\n  _proto.readUEG = function readUEG() {\n    var clz = this.skipLZ(); // :uint\n\n    return this.readBits(clz + 1) - 1;\n  } // ():int\n  ;\n\n  _proto.readEG = function readEG() {\n    var valu = this.readUEG(); // :int\n\n    if (0x01 & valu) {\n      // the number is odd if the low order bit is set\n      return 1 + valu >>> 1; // add 1 to make it even, and divide by 2\n    } else {\n      return -1 * (valu >>> 1); // divide by two then make it negative\n    }\n  } // Some convenience functions\n  // :Boolean\n  ;\n\n  _proto.readBoolean = function readBoolean() {\n    return this.readBits(1) === 1;\n  } // ():int\n  ;\n\n  _proto.readUByte = function readUByte() {\n    return this.readBits(8);\n  } // ():int\n  ;\n\n  _proto.readUShort = function readUShort() {\n    return this.readBits(16);\n  } // ():int\n  ;\n\n  _proto.readUInt = function readUInt() {\n    return this.readBits(32);\n  }\n  /**\n   * Advance the ExpGolomb decoder past a scaling list. The scaling\n   * list is optionally transmitted as part of a sequence parameter\n   * set and is not relevant to transmuxing.\n   * @param count {number} the number of entries in this scaling list\n   * @see Recommendation ITU-T H.264, Section 7.3.2.1.1.1\n   */\n  ;\n\n  _proto.skipScalingList = function skipScalingList(count) {\n    var lastScale = 8,\n        nextScale = 8,\n        j,\n        deltaScale;\n\n    for (j = 0; j < count; j++) {\n      if (nextScale !== 0) {\n        deltaScale = this.readEG();\n        nextScale = (lastScale + deltaScale + 256) % 256;\n      }\n\n      lastScale = nextScale === 0 ? lastScale : nextScale;\n    }\n  }\n  /**\n   * Read a sequence parameter set and return some interesting video\n   * properties. A sequence parameter set is the H264 metadata that\n   * describes the properties of upcoming video frames.\n   * @param data {Uint8Array} the bytes of a sequence parameter set\n   * @return {object} an object with configuration parsed from the\n   * sequence parameter set, including the dimensions of the\n   * associated video frames.\n   */\n  ;\n\n  _proto.readSPS = function readSPS() {\n    var frameCropLeftOffset = 0,\n        frameCropRightOffset = 0,\n        frameCropTopOffset = 0,\n        frameCropBottomOffset = 0,\n        profileIdc,\n        profileCompat,\n        levelIdc,\n        numRefFramesInPicOrderCntCycle,\n        picWidthInMbsMinus1,\n        picHeightInMapUnitsMinus1,\n        frameMbsOnlyFlag,\n        scalingListCount,\n        i,\n        readUByte = this.readUByte.bind(this),\n        readBits = this.readBits.bind(this),\n        readUEG = this.readUEG.bind(this),\n        readBoolean = this.readBoolean.bind(this),\n        skipBits = this.skipBits.bind(this),\n        skipEG = this.skipEG.bind(this),\n        skipUEG = this.skipUEG.bind(this),\n        skipScalingList = this.skipScalingList.bind(this);\n    readUByte();\n    profileIdc = readUByte(); // profile_idc\n\n    profileCompat = readBits(5); // constraint_set[0-4]_flag, u(5)\n\n    skipBits(3); // reserved_zero_3bits u(3),\n\n    levelIdc = readUByte(); // level_idc u(8)\n\n    skipUEG(); // seq_parameter_set_id\n    // some profiles have more optional data we don't need\n\n    if (profileIdc === 100 || profileIdc === 110 || profileIdc === 122 || profileIdc === 244 || profileIdc === 44 || profileIdc === 83 || profileIdc === 86 || profileIdc === 118 || profileIdc === 128) {\n      var chromaFormatIdc = readUEG();\n\n      if (chromaFormatIdc === 3) {\n        skipBits(1);\n      } // separate_colour_plane_flag\n\n\n      skipUEG(); // bit_depth_luma_minus8\n\n      skipUEG(); // bit_depth_chroma_minus8\n\n      skipBits(1); // qpprime_y_zero_transform_bypass_flag\n\n      if (readBoolean()) {\n        // seq_scaling_matrix_present_flag\n        scalingListCount = chromaFormatIdc !== 3 ? 8 : 12;\n\n        for (i = 0; i < scalingListCount; i++) {\n          if (readBoolean()) {\n            // seq_scaling_list_present_flag[ i ]\n            if (i < 6) {\n              skipScalingList(16);\n            } else {\n              skipScalingList(64);\n            }\n          }\n        }\n      }\n    }\n\n    skipUEG(); // log2_max_frame_num_minus4\n\n    var picOrderCntType = readUEG();\n\n    if (picOrderCntType === 0) {\n      readUEG(); // log2_max_pic_order_cnt_lsb_minus4\n    } else if (picOrderCntType === 1) {\n      skipBits(1); // delta_pic_order_always_zero_flag\n\n      skipEG(); // offset_for_non_ref_pic\n\n      skipEG(); // offset_for_top_to_bottom_field\n\n      numRefFramesInPicOrderCntCycle = readUEG();\n\n      for (i = 0; i < numRefFramesInPicOrderCntCycle; i++) {\n        skipEG();\n      } // offset_for_ref_frame[ i ]\n\n    }\n\n    skipUEG(); // max_num_ref_frames\n\n    skipBits(1); // gaps_in_frame_num_value_allowed_flag\n\n    picWidthInMbsMinus1 = readUEG();\n    picHeightInMapUnitsMinus1 = readUEG();\n    frameMbsOnlyFlag = readBits(1);\n\n    if (frameMbsOnlyFlag === 0) {\n      skipBits(1);\n    } // mb_adaptive_frame_field_flag\n\n\n    skipBits(1); // direct_8x8_inference_flag\n\n    if (readBoolean()) {\n      // frame_cropping_flag\n      frameCropLeftOffset = readUEG();\n      frameCropRightOffset = readUEG();\n      frameCropTopOffset = readUEG();\n      frameCropBottomOffset = readUEG();\n    }\n\n    var pixelRatio = [1, 1];\n\n    if (readBoolean()) {\n      // vui_parameters_present_flag\n      if (readBoolean()) {\n        // aspect_ratio_info_present_flag\n        var aspectRatioIdc = readUByte();\n\n        switch (aspectRatioIdc) {\n          case 1:\n            pixelRatio = [1, 1];\n            break;\n\n          case 2:\n            pixelRatio = [12, 11];\n            break;\n\n          case 3:\n            pixelRatio = [10, 11];\n            break;\n\n          case 4:\n            pixelRatio = [16, 11];\n            break;\n\n          case 5:\n            pixelRatio = [40, 33];\n            break;\n\n          case 6:\n            pixelRatio = [24, 11];\n            break;\n\n          case 7:\n            pixelRatio = [20, 11];\n            break;\n\n          case 8:\n            pixelRatio = [32, 11];\n            break;\n\n          case 9:\n            pixelRatio = [80, 33];\n            break;\n\n          case 10:\n            pixelRatio = [18, 11];\n            break;\n\n          case 11:\n            pixelRatio = [15, 11];\n            break;\n\n          case 12:\n            pixelRatio = [64, 33];\n            break;\n\n          case 13:\n            pixelRatio = [160, 99];\n            break;\n\n          case 14:\n            pixelRatio = [4, 3];\n            break;\n\n          case 15:\n            pixelRatio = [3, 2];\n            break;\n\n          case 16:\n            pixelRatio = [2, 1];\n            break;\n\n          case 255:\n            {\n              pixelRatio = [readUByte() << 8 | readUByte(), readUByte() << 8 | readUByte()];\n              break;\n            }\n        }\n      }\n    }\n\n    return {\n      width: Math.ceil((picWidthInMbsMinus1 + 1) * 16 - frameCropLeftOffset * 2 - frameCropRightOffset * 2),\n      height: (2 - frameMbsOnlyFlag) * (picHeightInMapUnitsMinus1 + 1) * 16 - (frameMbsOnlyFlag ? 2 : 4) * (frameCropTopOffset + frameCropBottomOffset),\n      pixelRatio: pixelRatio\n    };\n  };\n\n  _proto.readSliceType = function readSliceType() {\n    // skip NALu type\n    this.readUByte(); // discard first_mb_in_slice\n\n    this.readUEG(); // return slice_type\n\n    return this.readUEG();\n  };\n\n  return ExpGolomb;\n}();\n\n/* harmony default export */ var exp_golomb = (exp_golomb_ExpGolomb);\n// CONCATENATED MODULE: ./src/demux/sample-aes.js\n/**\n * SAMPLE-AES decrypter\n*/\n\n\nvar sample_aes_SampleAesDecrypter = /*#__PURE__*/function () {\n  function SampleAesDecrypter(observer, config, decryptdata, discardEPB) {\n    this.decryptdata = decryptdata;\n    this.discardEPB = discardEPB;\n    this.decrypter = new crypt_decrypter[\"default\"](observer, config, {\n      removePKCS7Padding: false\n    });\n  }\n\n  var _proto = SampleAesDecrypter.prototype;\n\n  _proto.decryptBuffer = function decryptBuffer(encryptedData, callback) {\n    this.decrypter.decrypt(encryptedData, this.decryptdata.key.buffer, this.decryptdata.iv.buffer, callback);\n  } // AAC - encrypt all full 16 bytes blocks starting from offset 16\n  ;\n\n  _proto.decryptAacSample = function decryptAacSample(samples, sampleIndex, callback, sync) {\n    var curUnit = samples[sampleIndex].unit;\n    var encryptedData = curUnit.subarray(16, curUnit.length - curUnit.length % 16);\n    var encryptedBuffer = encryptedData.buffer.slice(encryptedData.byteOffset, encryptedData.byteOffset + encryptedData.length);\n    var localthis = this;\n    this.decryptBuffer(encryptedBuffer, function (decryptedData) {\n      decryptedData = new Uint8Array(decryptedData);\n      curUnit.set(decryptedData, 16);\n\n      if (!sync) {\n        localthis.decryptAacSamples(samples, sampleIndex + 1, callback);\n      }\n    });\n  };\n\n  _proto.decryptAacSamples = function decryptAacSamples(samples, sampleIndex, callback) {\n    for (;; sampleIndex++) {\n      if (sampleIndex >= samples.length) {\n        callback();\n        return;\n      }\n\n      if (samples[sampleIndex].unit.length < 32) {\n        continue;\n      }\n\n      var sync = this.decrypter.isSync();\n      this.decryptAacSample(samples, sampleIndex, callback, sync);\n\n      if (!sync) {\n        return;\n      }\n    }\n  } // AVC - encrypt one 16 bytes block out of ten, starting from offset 32\n  ;\n\n  _proto.getAvcEncryptedData = function getAvcEncryptedData(decodedData) {\n    var encryptedDataLen = Math.floor((decodedData.length - 48) / 160) * 16 + 16;\n    var encryptedData = new Int8Array(encryptedDataLen);\n    var outputPos = 0;\n\n    for (var inputPos = 32; inputPos <= decodedData.length - 16; inputPos += 160, outputPos += 16) {\n      encryptedData.set(decodedData.subarray(inputPos, inputPos + 16), outputPos);\n    }\n\n    return encryptedData;\n  };\n\n  _proto.getAvcDecryptedUnit = function getAvcDecryptedUnit(decodedData, decryptedData) {\n    decryptedData = new Uint8Array(decryptedData);\n    var inputPos = 0;\n\n    for (var outputPos = 32; outputPos <= decodedData.length - 16; outputPos += 160, inputPos += 16) {\n      decodedData.set(decryptedData.subarray(inputPos, inputPos + 16), outputPos);\n    }\n\n    return decodedData;\n  };\n\n  _proto.decryptAvcSample = function decryptAvcSample(samples, sampleIndex, unitIndex, callback, curUnit, sync) {\n    var decodedData = this.discardEPB(curUnit.data);\n    var encryptedData = this.getAvcEncryptedData(decodedData);\n    var localthis = this;\n    this.decryptBuffer(encryptedData.buffer, function (decryptedData) {\n      curUnit.data = localthis.getAvcDecryptedUnit(decodedData, decryptedData);\n\n      if (!sync) {\n        localthis.decryptAvcSamples(samples, sampleIndex, unitIndex + 1, callback);\n      }\n    });\n  };\n\n  _proto.decryptAvcSamples = function decryptAvcSamples(samples, sampleIndex, unitIndex, callback) {\n    for (;; sampleIndex++, unitIndex = 0) {\n      if (sampleIndex >= samples.length) {\n        callback();\n        return;\n      }\n\n      var curUnits = samples[sampleIndex].units;\n\n      for (;; unitIndex++) {\n        if (unitIndex >= curUnits.length) {\n          break;\n        }\n\n        var curUnit = curUnits[unitIndex];\n\n        if (curUnit.length <= 48 || curUnit.type !== 1 && curUnit.type !== 5) {\n          continue;\n        }\n\n        var sync = this.decrypter.isSync();\n        this.decryptAvcSample(samples, sampleIndex, unitIndex, callback, curUnit, sync);\n\n        if (!sync) {\n          return;\n        }\n      }\n    }\n  };\n\n  return SampleAesDecrypter;\n}();\n\n/* harmony default export */ var sample_aes = (sample_aes_SampleAesDecrypter);\n// CONCATENATED MODULE: ./src/demux/tsdemuxer.js\n/**\n * highly optimized TS demuxer:\n * parse PAT, PMT\n * extract PES packet from audio and video PIDs\n * extract AVC/H264 NAL units and AAC/ADTS samples from PES packet\n * trigger the remuxer upon parsing completion\n * it also tries to workaround as best as it can audio codec switch (HE-AAC to AAC and vice versa), without having to restart the MediaSource.\n * it also controls the remuxing process :\n * upon discontinuity or level switch detection, it will also notifies the remuxer so that it can reset its state.\n*/\n\n\n\n\n // import Hex from '../utils/hex';\n\n\n\n // We are using fixed track IDs for driving the MP4 remuxer\n// instead of following the TS PIDs.\n// There is no reason not to do this and some browsers/SourceBuffer-demuxers\n// may not like if there are TrackID \"switches\"\n// See https://github.com/video-dev/hls.js/issues/1331\n// Here we are mapping our internal track types to constant MP4 track IDs\n// With MSE currently one can only have one track of each, and we are muxing\n// whatever video/audio rendition in them.\n\nvar RemuxerTrackIdConfig = {\n  video: 1,\n  audio: 2,\n  id3: 3,\n  text: 4\n};\n\nvar tsdemuxer_TSDemuxer = /*#__PURE__*/function () {\n  function TSDemuxer(observer, remuxer, config, typeSupported) {\n    this.observer = observer;\n    this.config = config;\n    this.typeSupported = typeSupported;\n    this.remuxer = remuxer;\n    this.sampleAes = null;\n    this.pmtUnknownTypes = {};\n  }\n\n  var _proto = TSDemuxer.prototype;\n\n  _proto.setDecryptData = function setDecryptData(decryptdata) {\n    if (decryptdata != null && decryptdata.key != null && decryptdata.method === 'SAMPLE-AES') {\n      this.sampleAes = new sample_aes(this.observer, this.config, decryptdata, this.discardEPB);\n    } else {\n      this.sampleAes = null;\n    }\n  };\n\n  TSDemuxer.probe = function probe(data) {\n    var syncOffset = TSDemuxer._syncOffset(data);\n\n    if (syncOffset < 0) {\n      return false;\n    } else {\n      if (syncOffset) {\n        logger[\"logger\"].warn(\"MPEG2-TS detected but first sync word found @ offset \" + syncOffset + \", junk ahead ?\");\n      }\n\n      return true;\n    }\n  };\n\n  TSDemuxer._syncOffset = function _syncOffset(data) {\n    // scan 1000 first bytes\n    var scanwindow = Math.min(1000, data.length - 3 * 188);\n    var i = 0;\n\n    while (i < scanwindow) {\n      // a TS fragment should contain at least 3 TS packets, a PAT, a PMT, and one PID, each starting with 0x47\n      if (data[i] === 0x47 && data[i + 188] === 0x47 && data[i + 2 * 188] === 0x47) {\n        return i;\n      } else {\n        i++;\n      }\n    }\n\n    return -1;\n  }\n  /**\n   * Creates a track model internal to demuxer used to drive remuxing input\n   *\n   * @param {string} type 'audio' | 'video' | 'id3' | 'text'\n   * @param {number} duration\n   * @return {object} TSDemuxer's internal track model\n   */\n  ;\n\n  TSDemuxer.createTrack = function createTrack(type, duration) {\n    return {\n      container: type === 'video' || type === 'audio' ? 'video/mp2t' : undefined,\n      type: type,\n      id: RemuxerTrackIdConfig[type],\n      pid: -1,\n      inputTimeScale: 90000,\n      sequenceNumber: 0,\n      samples: [],\n      dropped: type === 'video' ? 0 : undefined,\n      isAAC: type === 'audio' ? true : undefined,\n      duration: type === 'audio' ? duration : undefined\n    };\n  }\n  /**\n   * Initializes a new init segment on the demuxer/remuxer interface. Needed for discontinuities/track-switches (or at stream start)\n   * Resets all internal track instances of the demuxer.\n   *\n   * @override Implements generic demuxing/remuxing interface (see DemuxerInline)\n   * @param {object} initSegment\n   * @param {string} audioCodec\n   * @param {string} videoCodec\n   * @param {number} duration (in TS timescale = 90kHz)\n   */\n  ;\n\n  _proto.resetInitSegment = function resetInitSegment(initSegment, audioCodec, videoCodec, duration) {\n    this.pmtParsed = false;\n    this._pmtId = -1;\n    this.pmtUnknownTypes = {};\n    this._avcTrack = TSDemuxer.createTrack('video', duration);\n    this._audioTrack = TSDemuxer.createTrack('audio', duration);\n    this._id3Track = TSDemuxer.createTrack('id3', duration);\n    this._txtTrack = TSDemuxer.createTrack('text', duration); // flush any partial content\n\n    this.aacOverFlow = null;\n    this.aacLastPTS = null;\n    this.avcSample = null;\n    this.audioCodec = audioCodec;\n    this.videoCodec = videoCodec;\n    this._duration = duration;\n  }\n  /**\n   *\n   * @override\n   */\n  ;\n\n  _proto.resetTimeStamp = function resetTimeStamp() {} // feed incoming data to the front of the parsing pipeline\n  ;\n\n  _proto.append = function append(data, timeOffset, contiguous, accurateTimeOffset) {\n    var start,\n        len = data.length,\n        stt,\n        pid,\n        atf,\n        offset,\n        pes,\n        unknownPIDs = false;\n    this.pmtUnknownTypes = {};\n    this.contiguous = contiguous;\n\n    var pmtParsed = this.pmtParsed,\n        avcTrack = this._avcTrack,\n        audioTrack = this._audioTrack,\n        id3Track = this._id3Track,\n        avcId = avcTrack.pid,\n        audioId = audioTrack.pid,\n        id3Id = id3Track.pid,\n        pmtId = this._pmtId,\n        avcData = avcTrack.pesData,\n        audioData = audioTrack.pesData,\n        id3Data = id3Track.pesData,\n        parsePAT = this._parsePAT,\n        parsePMT = this._parsePMT.bind(this),\n        parsePES = this._parsePES,\n        parseAVCPES = this._parseAVCPES.bind(this),\n        parseAACPES = this._parseAACPES.bind(this),\n        parseMPEGPES = this._parseMPEGPES.bind(this),\n        parseID3PES = this._parseID3PES.bind(this);\n\n    var syncOffset = TSDemuxer._syncOffset(data); // don't parse last TS packet if incomplete\n\n\n    len -= (len + syncOffset) % 188; // loop through TS packets\n\n    for (start = syncOffset; start < len; start += 188) {\n      if (data[start] === 0x47) {\n        stt = !!(data[start + 1] & 0x40); // pid is a 13-bit field starting at the last bit of TS[1]\n\n        pid = ((data[start + 1] & 0x1f) << 8) + data[start + 2];\n        atf = (data[start + 3] & 0x30) >> 4; // if an adaption field is present, its length is specified by the fifth byte of the TS packet header.\n\n        if (atf > 1) {\n          offset = start + 5 + data[start + 4]; // continue if there is only adaptation field\n\n          if (offset === start + 188) {\n            continue;\n          }\n        } else {\n          offset = start + 4;\n        }\n\n        switch (pid) {\n          case avcId:\n            if (stt) {\n              if (avcData && (pes = parsePES(avcData))) {\n                parseAVCPES(pes, false);\n              }\n\n              avcData = {\n                data: [],\n                size: 0\n              };\n            }\n\n            if (avcData) {\n              avcData.data.push(data.subarray(offset, start + 188));\n              avcData.size += start + 188 - offset;\n            }\n\n            break;\n\n          case audioId:\n            if (stt) {\n              if (audioData && (pes = parsePES(audioData))) {\n                if (audioTrack.isAAC) {\n                  parseAACPES(pes);\n                } else {\n                  parseMPEGPES(pes);\n                }\n              }\n\n              audioData = {\n                data: [],\n                size: 0\n              };\n            }\n\n            if (audioData) {\n              audioData.data.push(data.subarray(offset, start + 188));\n              audioData.size += start + 188 - offset;\n            }\n\n            break;\n\n          case id3Id:\n            if (stt) {\n              if (id3Data && (pes = parsePES(id3Data))) {\n                parseID3PES(pes);\n              }\n\n              id3Data = {\n                data: [],\n                size: 0\n              };\n            }\n\n            if (id3Data) {\n              id3Data.data.push(data.subarray(offset, start + 188));\n              id3Data.size += start + 188 - offset;\n            }\n\n            break;\n\n          case 0:\n            if (stt) {\n              offset += data[offset] + 1;\n            }\n\n            pmtId = this._pmtId = parsePAT(data, offset);\n            break;\n\n          case pmtId:\n            if (stt) {\n              offset += data[offset] + 1;\n            }\n\n            var parsedPIDs = parsePMT(data, offset, this.typeSupported.mpeg === true || this.typeSupported.mp3 === true, this.sampleAes != null); // only update track id if track PID found while parsing PMT\n            // this is to avoid resetting the PID to -1 in case\n            // track PID transiently disappears from the stream\n            // this could happen in case of transient missing audio samples for example\n            // NOTE this is only the PID of the track as found in TS,\n            // but we are not using this for MP4 track IDs.\n\n            avcId = parsedPIDs.avc;\n\n            if (avcId > 0) {\n              avcTrack.pid = avcId;\n            }\n\n            audioId = parsedPIDs.audio;\n\n            if (audioId > 0) {\n              audioTrack.pid = audioId;\n              audioTrack.isAAC = parsedPIDs.isAAC;\n            }\n\n            id3Id = parsedPIDs.id3;\n\n            if (id3Id > 0) {\n              id3Track.pid = id3Id;\n            }\n\n            if (unknownPIDs && !pmtParsed) {\n              logger[\"logger\"].log('reparse from beginning');\n              unknownPIDs = false; // we set it to -188, the += 188 in the for loop will reset start to 0\n\n              start = syncOffset - 188;\n            }\n\n            pmtParsed = this.pmtParsed = true;\n            break;\n\n          case 17:\n          case 0x1fff:\n            break;\n\n          default:\n            unknownPIDs = true;\n            break;\n        }\n      } else {\n        this.observer.trigger(events[\"default\"].ERROR, {\n          type: errors[\"ErrorTypes\"].MEDIA_ERROR,\n          details: errors[\"ErrorDetails\"].FRAG_PARSING_ERROR,\n          fatal: false,\n          reason: 'TS packet did not start with 0x47'\n        });\n      }\n    } // try to parse last PES packets\n\n\n    if (avcData && (pes = parsePES(avcData))) {\n      parseAVCPES(pes, true);\n      avcTrack.pesData = null;\n    } else {\n      // either avcData null or PES truncated, keep it for next frag parsing\n      avcTrack.pesData = avcData;\n    }\n\n    if (audioData && (pes = parsePES(audioData))) {\n      if (audioTrack.isAAC) {\n        parseAACPES(pes);\n      } else {\n        parseMPEGPES(pes);\n      }\n\n      audioTrack.pesData = null;\n    } else {\n      if (audioData && audioData.size) {\n        logger[\"logger\"].log('last AAC PES packet truncated,might overlap between fragments');\n      } // either audioData null or PES truncated, keep it for next frag parsing\n\n\n      audioTrack.pesData = audioData;\n    }\n\n    if (id3Data && (pes = parsePES(id3Data))) {\n      parseID3PES(pes);\n      id3Track.pesData = null;\n    } else {\n      // either id3Data null or PES truncated, keep it for next frag parsing\n      id3Track.pesData = id3Data;\n    }\n\n    if (this.sampleAes == null) {\n      this.remuxer.remux(audioTrack, avcTrack, id3Track, this._txtTrack, timeOffset, contiguous, accurateTimeOffset);\n    } else {\n      this.decryptAndRemux(audioTrack, avcTrack, id3Track, this._txtTrack, timeOffset, contiguous, accurateTimeOffset);\n    }\n  };\n\n  _proto.decryptAndRemux = function decryptAndRemux(audioTrack, videoTrack, id3Track, textTrack, timeOffset, contiguous, accurateTimeOffset) {\n    if (audioTrack.samples && audioTrack.isAAC) {\n      var localthis = this;\n      this.sampleAes.decryptAacSamples(audioTrack.samples, 0, function () {\n        localthis.decryptAndRemuxAvc(audioTrack, videoTrack, id3Track, textTrack, timeOffset, contiguous, accurateTimeOffset);\n      });\n    } else {\n      this.decryptAndRemuxAvc(audioTrack, videoTrack, id3Track, textTrack, timeOffset, contiguous, accurateTimeOffset);\n    }\n  };\n\n  _proto.decryptAndRemuxAvc = function decryptAndRemuxAvc(audioTrack, videoTrack, id3Track, textTrack, timeOffset, contiguous, accurateTimeOffset) {\n    if (videoTrack.samples) {\n      var localthis = this;\n      this.sampleAes.decryptAvcSamples(videoTrack.samples, 0, 0, function () {\n        localthis.remuxer.remux(audioTrack, videoTrack, id3Track, textTrack, timeOffset, contiguous, accurateTimeOffset);\n      });\n    } else {\n      this.remuxer.remux(audioTrack, videoTrack, id3Track, textTrack, timeOffset, contiguous, accurateTimeOffset);\n    }\n  };\n\n  _proto.destroy = function destroy() {\n    this._initPTS = this._initDTS = undefined;\n    this._duration = 0;\n  };\n\n  _proto._parsePAT = function _parsePAT(data, offset) {\n    // skip the PSI header and parse the first PMT entry\n    return (data[offset + 10] & 0x1F) << 8 | data[offset + 11]; // logger.log('PMT PID:'  + this._pmtId);\n  };\n\n  _proto._trackUnknownPmt = function _trackUnknownPmt(type, logLevel, message) {\n    // Only log unknown and unsupported stream types once per append or stream (by resetting this.pmtUnknownTypes)\n    // For more information on elementary stream types see:\n    // https://en.wikipedia.org/wiki/Program-specific_information#Elementary_stream_types\n    var result = this.pmtUnknownTypes[type] || 0;\n\n    if (result === 0) {\n      this.pmtUnknownTypes[type] = 0;\n      logLevel.call(logger[\"logger\"], message);\n    }\n\n    this.pmtUnknownTypes[type]++;\n    return result;\n  };\n\n  _proto._parsePMT = function _parsePMT(data, offset, mpegSupported, isSampleAes) {\n    var sectionLength,\n        tableEnd,\n        programInfoLength,\n        pid,\n        result = {\n      audio: -1,\n      avc: -1,\n      id3: -1,\n      isAAC: true\n    };\n    sectionLength = (data[offset + 1] & 0x0f) << 8 | data[offset + 2];\n    tableEnd = offset + 3 + sectionLength - 4; // to determine where the table is, we have to figure out how\n    // long the program info descriptors are\n\n    programInfoLength = (data[offset + 10] & 0x0f) << 8 | data[offset + 11]; // advance the offset to the first entry in the mapping table\n\n    offset += 12 + programInfoLength;\n\n    while (offset < tableEnd) {\n      pid = (data[offset + 1] & 0x1F) << 8 | data[offset + 2];\n\n      switch (data[offset]) {\n        case 0xcf:\n          // SAMPLE-AES AAC\n          if (!isSampleAes) {\n            this._trackUnknownPmt(data[offset], logger[\"logger\"].warn, 'ADTS AAC with AES-128-CBC frame encryption found in unencrypted stream');\n\n            break;\n          }\n\n        /* falls through */\n        // ISO/IEC 13818-7 ADTS AAC (MPEG-2 lower bit-rate audio)\n\n        case 0x0f:\n          // logger.log('AAC PID:'  + pid);\n          if (result.audio === -1) {\n            result.audio = pid;\n          }\n\n          break;\n        // Packetized metadata (ID3)\n\n        case 0x15:\n          // logger.log('ID3 PID:'  + pid);\n          if (result.id3 === -1) {\n            result.id3 = pid;\n          }\n\n          break;\n\n        case 0xdb:\n          // SAMPLE-AES AVC\n          if (!isSampleAes) {\n            this._trackUnknownPmt(data[offset], logger[\"logger\"].warn, 'H.264 with AES-128-CBC slice encryption found in unencrypted stream');\n\n            break;\n          }\n\n        /* falls through */\n        // ITU-T Rec. H.264 and ISO/IEC 14496-10 (lower bit-rate video)\n\n        case 0x1b:\n          // logger.log('AVC PID:'  + pid);\n          if (result.avc === -1) {\n            result.avc = pid;\n          }\n\n          break;\n        // ISO/IEC 11172-3 (MPEG-1 audio)\n        // or ISO/IEC 13818-3 (MPEG-2 halved sample rate audio)\n\n        case 0x03:\n        case 0x04:\n          // logger.log('MPEG PID:'  + pid);\n          if (!mpegSupported) {\n            this._trackUnknownPmt(data[offset], logger[\"logger\"].warn, 'MPEG audio found, not supported in this browser');\n          } else if (result.audio === -1) {\n            result.audio = pid;\n            result.isAAC = false;\n          }\n\n          break;\n\n        case 0x24:\n          this._trackUnknownPmt(data[offset], logger[\"logger\"].warn, 'Unsupported HEVC stream type found');\n\n          break;\n\n        default:\n          this._trackUnknownPmt(data[offset], logger[\"logger\"].log, 'Unknown stream type:' + data[offset]);\n\n          break;\n      } // move to the next table entry\n      // skip past the elementary stream descriptors, if present\n\n\n      offset += ((data[offset + 3] & 0x0F) << 8 | data[offset + 4]) + 5;\n    }\n\n    return result;\n  };\n\n  _proto._parsePES = function _parsePES(stream) {\n    var i = 0,\n        frag,\n        pesFlags,\n        pesPrefix,\n        pesLen,\n        pesHdrLen,\n        pesData,\n        pesPts,\n        pesDts,\n        payloadStartOffset,\n        data = stream.data; // safety check\n\n    if (!stream || stream.size === 0) {\n      return null;\n    } // we might need up to 19 bytes to read PES header\n    // if first chunk of data is less than 19 bytes, let's merge it with following ones until we get 19 bytes\n    // usually only one merge is needed (and this is rare ...)\n\n\n    while (data[0].length < 19 && data.length > 1) {\n      var newData = new Uint8Array(data[0].length + data[1].length);\n      newData.set(data[0]);\n      newData.set(data[1], data[0].length);\n      data[0] = newData;\n      data.splice(1, 1);\n    } // retrieve PTS/DTS from first fragment\n\n\n    frag = data[0];\n    pesPrefix = (frag[0] << 16) + (frag[1] << 8) + frag[2];\n\n    if (pesPrefix === 1) {\n      pesLen = (frag[4] << 8) + frag[5]; // if PES parsed length is not zero and greater than total received length, stop parsing. PES might be truncated\n      // minus 6 : PES header size\n\n      if (pesLen && pesLen > stream.size - 6) {\n        return null;\n      }\n\n      pesFlags = frag[7];\n\n      if (pesFlags & 0xC0) {\n        /* PES header described here : http://dvd.sourceforge.net/dvdinfo/pes-hdr.html\n            as PTS / DTS is 33 bit we cannot use bitwise operator in JS,\n            as Bitwise operators treat their operands as a sequence of 32 bits */\n        pesPts = (frag[9] & 0x0E) * 536870912 + // 1 << 29\n        (frag[10] & 0xFF) * 4194304 + // 1 << 22\n        (frag[11] & 0xFE) * 16384 + // 1 << 14\n        (frag[12] & 0xFF) * 128 + // 1 << 7\n        (frag[13] & 0xFE) / 2; // check if greater than 2^32 -1\n\n        if (pesPts > 4294967295) {\n          // decrement 2^33\n          pesPts -= 8589934592;\n        }\n\n        if (pesFlags & 0x40) {\n          pesDts = (frag[14] & 0x0E) * 536870912 + // 1 << 29\n          (frag[15] & 0xFF) * 4194304 + // 1 << 22\n          (frag[16] & 0xFE) * 16384 + // 1 << 14\n          (frag[17] & 0xFF) * 128 + // 1 << 7\n          (frag[18] & 0xFE) / 2; // check if greater than 2^32 -1\n\n          if (pesDts > 4294967295) {\n            // decrement 2^33\n            pesDts -= 8589934592;\n          }\n\n          if (pesPts - pesDts > 60 * 90000) {\n            logger[\"logger\"].warn(Math.round((pesPts - pesDts) / 90000) + \"s delta between PTS and DTS, align them\");\n            pesPts = pesDts;\n          }\n        } else {\n          pesDts = pesPts;\n        }\n      }\n\n      pesHdrLen = frag[8]; // 9 bytes : 6 bytes for PES header + 3 bytes for PES extension\n\n      payloadStartOffset = pesHdrLen + 9;\n\n      if (stream.size <= payloadStartOffset) {\n        return null;\n      }\n\n      stream.size -= payloadStartOffset; // reassemble PES packet\n\n      pesData = new Uint8Array(stream.size);\n\n      for (var j = 0, dataLen = data.length; j < dataLen; j++) {\n        frag = data[j];\n        var len = frag.byteLength;\n\n        if (payloadStartOffset) {\n          if (payloadStartOffset > len) {\n            // trim full frag if PES header bigger than frag\n            payloadStartOffset -= len;\n            continue;\n          } else {\n            // trim partial frag if PES header smaller than frag\n            frag = frag.subarray(payloadStartOffset);\n            len -= payloadStartOffset;\n            payloadStartOffset = 0;\n          }\n        }\n\n        pesData.set(frag, i);\n        i += len;\n      }\n\n      if (pesLen) {\n        // payload size : remove PES header + PES extension\n        pesLen -= pesHdrLen + 3;\n      }\n\n      return {\n        data: pesData,\n        pts: pesPts,\n        dts: pesDts,\n        len: pesLen\n      };\n    } else {\n      return null;\n    }\n  };\n\n  _proto.pushAccesUnit = function pushAccesUnit(avcSample, avcTrack) {\n    if (avcSample.units.length && avcSample.frame) {\n      var samples = avcTrack.samples;\n      var nbSamples = samples.length; // if sample does not have PTS/DTS, patch with last sample PTS/DTS\n\n      if (isNaN(avcSample.pts)) {\n        if (nbSamples) {\n          var lastSample = samples[nbSamples - 1];\n          avcSample.pts = lastSample.pts;\n          avcSample.dts = lastSample.dts;\n        } else {\n          // dropping samples, no timestamp found\n          avcTrack.dropped++;\n          return;\n        }\n      } // only push AVC sample if starting with a keyframe is not mandatory OR\n      //    if keyframe already found in this fragment OR\n      //       keyframe found in last fragment (track.sps) AND\n      //          samples already appended (we already found a keyframe in this fragment) OR fragment is contiguous\n\n\n      if (!this.config.forceKeyFrameOnDiscontinuity || avcSample.key === true || avcTrack.sps && (nbSamples || this.contiguous)) {\n        avcSample.id = nbSamples;\n        samples.push(avcSample);\n      } else {\n        // dropped samples, track it\n        avcTrack.dropped++;\n      }\n    }\n\n    if (avcSample.debug.length) {\n      logger[\"logger\"].log(avcSample.pts + '/' + avcSample.dts + ':' + avcSample.debug);\n    }\n  };\n\n  _proto._parseAVCPES = function _parseAVCPES(pes, last) {\n    var _this = this;\n\n    // logger.log('parse new PES');\n    var track = this._avcTrack,\n        units = this._parseAVCNALu(pes.data),\n        debug = false,\n        expGolombDecoder,\n        avcSample = this.avcSample,\n        push,\n        spsfound = false,\n        i,\n        pushAccesUnit = this.pushAccesUnit.bind(this),\n        createAVCSample = function createAVCSample(key, pts, dts, debug) {\n      return {\n        key: key,\n        pts: pts,\n        dts: dts,\n        units: [],\n        debug: debug\n      };\n    }; // free pes.data to save up some memory\n\n\n    pes.data = null; // if new NAL units found and last sample still there, let's push ...\n    // this helps parsing streams with missing AUD (only do this if AUD never found)\n\n    if (avcSample && units.length && !track.audFound) {\n      pushAccesUnit(avcSample, track);\n      avcSample = this.avcSample = createAVCSample(false, pes.pts, pes.dts, '');\n    }\n\n    units.forEach(function (unit) {\n      switch (unit.type) {\n        // NDR\n        case 1:\n          push = true;\n\n          if (!avcSample) {\n            avcSample = _this.avcSample = createAVCSample(true, pes.pts, pes.dts, '');\n          }\n\n          if (debug) {\n            avcSample.debug += 'NDR ';\n          }\n\n          avcSample.frame = true;\n          var data = unit.data; // only check slice type to detect KF in case SPS found in same packet (any keyframe is preceded by SPS ...)\n\n          if (spsfound && data.length > 4) {\n            // retrieve slice type by parsing beginning of NAL unit (follow H264 spec, slice_header definition) to detect keyframe embedded in NDR\n            var sliceType = new exp_golomb(data).readSliceType(); // 2 : I slice, 4 : SI slice, 7 : I slice, 9: SI slice\n            // SI slice : A slice that is coded using intra prediction only and using quantisation of the prediction samples.\n            // An SI slice can be coded such that its decoded samples can be constructed identically to an SP slice.\n            // I slice: A slice that is not an SI slice that is decoded using intra prediction only.\n            // if (sliceType === 2 || sliceType === 7) {\n\n            if (sliceType === 2 || sliceType === 4 || sliceType === 7 || sliceType === 9) {\n              avcSample.key = true;\n            }\n          }\n\n          break;\n        // IDR\n\n        case 5:\n          push = true; // handle PES not starting with AUD\n\n          if (!avcSample) {\n            avcSample = _this.avcSample = createAVCSample(true, pes.pts, pes.dts, '');\n          }\n\n          if (debug) {\n            avcSample.debug += 'IDR ';\n          }\n\n          avcSample.key = true;\n          avcSample.frame = true;\n          break;\n        // SEI\n\n        case 6:\n          push = true;\n\n          if (debug && avcSample) {\n            avcSample.debug += 'SEI ';\n          }\n\n          expGolombDecoder = new exp_golomb(_this.discardEPB(unit.data)); // skip frameType\n\n          expGolombDecoder.readUByte();\n          var payloadType = 0;\n          var payloadSize = 0;\n          var endOfCaptions = false;\n          var b = 0;\n\n          while (!endOfCaptions && expGolombDecoder.bytesAvailable > 1) {\n            payloadType = 0;\n\n            do {\n              b = expGolombDecoder.readUByte();\n              payloadType += b;\n            } while (b === 0xFF); // Parse payload size.\n\n\n            payloadSize = 0;\n\n            do {\n              b = expGolombDecoder.readUByte();\n              payloadSize += b;\n            } while (b === 0xFF); // TODO: there can be more than one payload in an SEI packet...\n            // TODO: need to read type and size in a while loop to get them all\n\n\n            if (payloadType === 4 && expGolombDecoder.bytesAvailable !== 0) {\n              endOfCaptions = true;\n              var countryCode = expGolombDecoder.readUByte();\n\n              if (countryCode === 181) {\n                var providerCode = expGolombDecoder.readUShort();\n\n                if (providerCode === 49) {\n                  var userStructure = expGolombDecoder.readUInt();\n\n                  if (userStructure === 0x47413934) {\n                    var userDataType = expGolombDecoder.readUByte(); // Raw CEA-608 bytes wrapped in CEA-708 packet\n\n                    if (userDataType === 3) {\n                      var firstByte = expGolombDecoder.readUByte();\n                      var secondByte = expGolombDecoder.readUByte();\n                      var totalCCs = 31 & firstByte;\n                      var byteArray = [firstByte, secondByte];\n\n                      for (i = 0; i < totalCCs; i++) {\n                        // 3 bytes per CC\n                        byteArray.push(expGolombDecoder.readUByte());\n                        byteArray.push(expGolombDecoder.readUByte());\n                        byteArray.push(expGolombDecoder.readUByte());\n                      }\n\n                      _this._insertSampleInOrder(_this._txtTrack.samples, {\n                        type: 3,\n                        pts: pes.pts,\n                        bytes: byteArray\n                      });\n                    }\n                  }\n                }\n              }\n            } else if (payloadType === 5 && expGolombDecoder.bytesAvailable !== 0) {\n              endOfCaptions = true;\n\n              if (payloadSize > 16) {\n                var uuidStrArray = [];\n\n                for (i = 0; i < 16; i++) {\n                  uuidStrArray.push(expGolombDecoder.readUByte().toString(16));\n\n                  if (i === 3 || i === 5 || i === 7 || i === 9) {\n                    uuidStrArray.push('-');\n                  }\n                }\n\n                var length = payloadSize - 16;\n                var userDataPayloadBytes = new Uint8Array(length);\n\n                for (i = 0; i < length; i++) {\n                  userDataPayloadBytes[i] = expGolombDecoder.readUByte();\n                }\n\n                _this._insertSampleInOrder(_this._txtTrack.samples, {\n                  pts: pes.pts,\n                  payloadType: payloadType,\n                  uuid: uuidStrArray.join(''),\n                  userDataBytes: userDataPayloadBytes,\n                  userData: Object(id3[\"utf8ArrayToStr\"])(userDataPayloadBytes.buffer)\n                });\n              }\n            } else if (payloadSize < expGolombDecoder.bytesAvailable) {\n              for (i = 0; i < payloadSize; i++) {\n                expGolombDecoder.readUByte();\n              }\n            }\n          }\n\n          break;\n        // SPS\n\n        case 7:\n          push = true;\n          spsfound = true;\n\n          if (debug && avcSample) {\n            avcSample.debug += 'SPS ';\n          }\n\n          if (!track.sps) {\n            expGolombDecoder = new exp_golomb(unit.data);\n            var config = expGolombDecoder.readSPS();\n            track.width = config.width;\n            track.height = config.height;\n            track.pixelRatio = config.pixelRatio;\n            track.sps = [unit.data];\n            track.duration = _this._duration;\n            var codecarray = unit.data.subarray(1, 4);\n            var codecstring = 'avc1.';\n\n            for (i = 0; i < 3; i++) {\n              var h = codecarray[i].toString(16);\n\n              if (h.length < 2) {\n                h = '0' + h;\n              }\n\n              codecstring += h;\n            }\n\n            track.codec = codecstring;\n          }\n\n          break;\n        // PPS\n\n        case 8:\n          push = true;\n\n          if (debug && avcSample) {\n            avcSample.debug += 'PPS ';\n          }\n\n          if (!track.pps) {\n            track.pps = [unit.data];\n          }\n\n          break;\n        // AUD\n\n        case 9:\n          push = false;\n          track.audFound = true;\n\n          if (avcSample) {\n            pushAccesUnit(avcSample, track);\n          }\n\n          avcSample = _this.avcSample = createAVCSample(false, pes.pts, pes.dts, debug ? 'AUD ' : '');\n          break;\n        // Filler Data\n\n        case 12:\n          push = false;\n          break;\n\n        default:\n          push = false;\n\n          if (avcSample) {\n            avcSample.debug += 'unknown NAL ' + unit.type + ' ';\n          }\n\n          break;\n      }\n\n      if (avcSample && push) {\n        var _units = avcSample.units;\n\n        _units.push(unit);\n      }\n    }); // if last PES packet, push samples\n\n    if (last && avcSample) {\n      pushAccesUnit(avcSample, track);\n      this.avcSample = null;\n    }\n  };\n\n  _proto._insertSampleInOrder = function _insertSampleInOrder(arr, data) {\n    var len = arr.length;\n\n    if (len > 0) {\n      if (data.pts >= arr[len - 1].pts) {\n        arr.push(data);\n      } else {\n        for (var pos = len - 1; pos >= 0; pos--) {\n          if (data.pts < arr[pos].pts) {\n            arr.splice(pos, 0, data);\n            break;\n          }\n        }\n      }\n    } else {\n      arr.push(data);\n    }\n  };\n\n  _proto._getLastNalUnit = function _getLastNalUnit() {\n    var avcSample = this.avcSample,\n        lastUnit; // try to fallback to previous sample if current one is empty\n\n    if (!avcSample || avcSample.units.length === 0) {\n      var track = this._avcTrack,\n          samples = track.samples;\n      avcSample = samples[samples.length - 1];\n    }\n\n    if (avcSample) {\n      var units = avcSample.units;\n      lastUnit = units[units.length - 1];\n    }\n\n    return lastUnit;\n  };\n\n  _proto._parseAVCNALu = function _parseAVCNALu(array) {\n    var i = 0,\n        len = array.byteLength,\n        value,\n        overflow,\n        track = this._avcTrack,\n        state = track.naluState || 0,\n        lastState = state;\n    var units = [],\n        unit,\n        unitType,\n        lastUnitStart = -1,\n        lastUnitType; // logger.log('PES:' + Hex.hexDump(array));\n\n    if (state === -1) {\n      // special use case where we found 3 or 4-byte start codes exactly at the end of previous PES packet\n      lastUnitStart = 0; // NALu type is value read from offset 0\n\n      lastUnitType = array[0] & 0x1f;\n      state = 0;\n      i = 1;\n    }\n\n    while (i < len) {\n      value = array[i++]; // optimization. state 0 and 1 are the predominant case. let's handle them outside of the switch/case\n\n      if (!state) {\n        state = value ? 0 : 1;\n        continue;\n      }\n\n      if (state === 1) {\n        state = value ? 0 : 2;\n        continue;\n      } // here we have state either equal to 2 or 3\n\n\n      if (!value) {\n        state = 3;\n      } else if (value === 1) {\n        if (lastUnitStart >= 0) {\n          unit = {\n            data: array.subarray(lastUnitStart, i - state - 1),\n            type: lastUnitType\n          }; // logger.log('pushing NALU, type/size:' + unit.type + '/' + unit.data.byteLength);\n\n          units.push(unit);\n        } else {\n          // lastUnitStart is undefined => this is the first start code found in this PES packet\n          // first check if start code delimiter is overlapping between 2 PES packets,\n          // ie it started in last packet (lastState not zero)\n          // and ended at the beginning of this PES packet (i <= 4 - lastState)\n          var lastUnit = this._getLastNalUnit();\n\n          if (lastUnit) {\n            if (lastState && i <= 4 - lastState) {\n              // start delimiter overlapping between PES packets\n              // strip start delimiter bytes from the end of last NAL unit\n              // check if lastUnit had a state different from zero\n              if (lastUnit.state) {\n                // strip last bytes\n                lastUnit.data = lastUnit.data.subarray(0, lastUnit.data.byteLength - lastState);\n              }\n            } // If NAL units are not starting right at the beginning of the PES packet, push preceding data into previous NAL unit.\n\n\n            overflow = i - state - 1;\n\n            if (overflow > 0) {\n              // logger.log('first NALU found with overflow:' + overflow);\n              var tmp = new Uint8Array(lastUnit.data.byteLength + overflow);\n              tmp.set(lastUnit.data, 0);\n              tmp.set(array.subarray(0, overflow), lastUnit.data.byteLength);\n              lastUnit.data = tmp;\n            }\n          }\n        } // check if we can read unit type\n\n\n        if (i < len) {\n          unitType = array[i] & 0x1f; // logger.log('find NALU @ offset:' + i + ',type:' + unitType);\n\n          lastUnitStart = i;\n          lastUnitType = unitType;\n          state = 0;\n        } else {\n          // not enough byte to read unit type. let's read it on next PES parsing\n          state = -1;\n        }\n      } else {\n        state = 0;\n      }\n    }\n\n    if (lastUnitStart >= 0 && state >= 0) {\n      unit = {\n        data: array.subarray(lastUnitStart, len),\n        type: lastUnitType,\n        state: state\n      };\n      units.push(unit); // logger.log('pushing NALU, type/size/state:' + unit.type + '/' + unit.data.byteLength + '/' + state);\n    } // no NALu found\n\n\n    if (units.length === 0) {\n      // append pes.data to previous NAL unit\n      var _lastUnit = this._getLastNalUnit();\n\n      if (_lastUnit) {\n        var _tmp = new Uint8Array(_lastUnit.data.byteLength + array.byteLength);\n\n        _tmp.set(_lastUnit.data, 0);\n\n        _tmp.set(array, _lastUnit.data.byteLength);\n\n        _lastUnit.data = _tmp;\n      }\n    }\n\n    track.naluState = state;\n    return units;\n  }\n  /**\n   * remove Emulation Prevention bytes from a RBSP\n   */\n  ;\n\n  _proto.discardEPB = function discardEPB(data) {\n    var length = data.byteLength,\n        EPBPositions = [],\n        i = 1,\n        newLength,\n        newData; // Find all `Emulation Prevention Bytes`\n\n    while (i < length - 2) {\n      if (data[i] === 0 && data[i + 1] === 0 && data[i + 2] === 0x03) {\n        EPBPositions.push(i + 2);\n        i += 2;\n      } else {\n        i++;\n      }\n    } // If no Emulation Prevention Bytes were found just return the original\n    // array\n\n\n    if (EPBPositions.length === 0) {\n      return data;\n    } // Create a new array to hold the NAL unit data\n\n\n    newLength = length - EPBPositions.length;\n    newData = new Uint8Array(newLength);\n    var sourceIndex = 0;\n\n    for (i = 0; i < newLength; sourceIndex++, i++) {\n      if (sourceIndex === EPBPositions[0]) {\n        // Skip this byte\n        sourceIndex++; // Remove this position index\n\n        EPBPositions.shift();\n      }\n\n      newData[i] = data[sourceIndex];\n    }\n\n    return newData;\n  };\n\n  _proto._parseAACPES = function _parseAACPES(pes) {\n    var track = this._audioTrack,\n        data = pes.data,\n        pts = pes.pts,\n        startOffset = 0,\n        aacOverFlow = this.aacOverFlow,\n        aacLastPTS = this.aacLastPTS,\n        frameDuration,\n        frameIndex,\n        offset,\n        stamp,\n        len;\n\n    if (aacOverFlow) {\n      var tmp = new Uint8Array(aacOverFlow.byteLength + data.byteLength);\n      tmp.set(aacOverFlow, 0);\n      tmp.set(data, aacOverFlow.byteLength); // logger.log(`AAC: append overflowing ${aacOverFlow.byteLength} bytes to beginning of new PES`);\n\n      data = tmp;\n    } // look for ADTS header (0xFFFx)\n\n\n    for (offset = startOffset, len = data.length; offset < len - 1; offset++) {\n      if (isHeader(data, offset)) {\n        break;\n      }\n    } // if ADTS header does not start straight from the beginning of the PES payload, raise an error\n\n\n    if (offset) {\n      var reason, fatal;\n\n      if (offset < len - 1) {\n        reason = \"AAC PES did not start with ADTS header,offset:\" + offset;\n        fatal = false;\n      } else {\n        reason = 'no ADTS header found in AAC PES';\n        fatal = true;\n      }\n\n      logger[\"logger\"].warn(\"parsing error:\" + reason);\n      this.observer.trigger(events[\"default\"].ERROR, {\n        type: errors[\"ErrorTypes\"].MEDIA_ERROR,\n        details: errors[\"ErrorDetails\"].FRAG_PARSING_ERROR,\n        fatal: fatal,\n        reason: reason\n      });\n\n      if (fatal) {\n        return;\n      }\n    }\n\n    initTrackConfig(track, this.observer, data, offset, this.audioCodec);\n    frameIndex = 0;\n    frameDuration = getFrameDuration(track.samplerate); // if last AAC frame is overflowing, we should ensure timestamps are contiguous:\n    // first sample PTS should be equal to last sample PTS + frameDuration\n\n    if (aacOverFlow && aacLastPTS) {\n      var newPTS = aacLastPTS + frameDuration;\n\n      if (Math.abs(newPTS - pts) > 1) {\n        logger[\"logger\"].log(\"AAC: align PTS for overlapping frames by \" + Math.round((newPTS - pts) / 90));\n        pts = newPTS;\n      }\n    } // scan for aac samples\n\n\n    while (offset < len) {\n      if (isHeader(data, offset)) {\n        if (offset + 5 < len) {\n          var frame = appendFrame(track, data, offset, pts, frameIndex);\n\n          if (frame) {\n            offset += frame.length;\n            stamp = frame.sample.pts;\n            frameIndex++;\n            continue;\n          }\n        } // We are at an ADTS header, but do not have enough data for a frame\n        // Remaining data will be added to aacOverFlow\n\n\n        break;\n      } else {\n        // nothing found, keep looking\n        offset++;\n      }\n    }\n\n    if (offset < len) {\n      aacOverFlow = data.subarray(offset, len); // logger.log(`AAC: overflow detected:${len-offset}`);\n    } else {\n      aacOverFlow = null;\n    }\n\n    this.aacOverFlow = aacOverFlow;\n    this.aacLastPTS = stamp;\n  };\n\n  _proto._parseMPEGPES = function _parseMPEGPES(pes) {\n    var data = pes.data;\n    var length = data.length;\n    var frameIndex = 0;\n    var offset = 0;\n    var pts = pes.pts;\n\n    while (offset < length) {\n      if (mpegaudio.isHeader(data, offset)) {\n        var frame = mpegaudio.appendFrame(this._audioTrack, data, offset, pts, frameIndex);\n\n        if (frame) {\n          offset += frame.length;\n          frameIndex++;\n        } else {\n          // logger.log('Unable to parse Mpeg audio frame');\n          break;\n        }\n      } else {\n        // nothing found, keep looking\n        offset++;\n      }\n    }\n  };\n\n  _proto._parseID3PES = function _parseID3PES(pes) {\n    this._id3Track.samples.push(pes);\n  };\n\n  return TSDemuxer;\n}();\n\n/* harmony default export */ var tsdemuxer = (tsdemuxer_TSDemuxer);\n// CONCATENATED MODULE: ./src/demux/mp3demuxer.js\n/**\n * MP3 demuxer\n */\n\n\n\n\nvar mp3demuxer_MP3Demuxer = /*#__PURE__*/function () {\n  function MP3Demuxer(observer, remuxer, config) {\n    this.observer = observer;\n    this.config = config;\n    this.remuxer = remuxer;\n  }\n\n  var _proto = MP3Demuxer.prototype;\n\n  _proto.resetInitSegment = function resetInitSegment(initSegment, audioCodec, videoCodec, duration) {\n    this._audioTrack = {\n      container: 'audio/mpeg',\n      type: 'audio',\n      id: -1,\n      sequenceNumber: 0,\n      isAAC: false,\n      samples: [],\n      len: 0,\n      manifestCodec: audioCodec,\n      duration: duration,\n      inputTimeScale: 90000\n    };\n  };\n\n  _proto.resetTimeStamp = function resetTimeStamp() {};\n\n  MP3Demuxer.probe = function probe(data) {\n    // check if data contains ID3 timestamp and MPEG sync word\n    var offset, length;\n    var id3Data = id3[\"default\"].getID3Data(data, 0);\n\n    if (id3Data && id3[\"default\"].getTimeStamp(id3Data) !== undefined) {\n      // Look for MPEG header | 1111 1111 | 111X XYZX | where X can be either 0 or 1 and Y or Z should be 1\n      // Layer bits (position 14 and 15) in header should be always different from 0 (Layer I or Layer II or Layer III)\n      // More info http://www.mp3-tech.org/programmer/frame_header.html\n      for (offset = id3Data.length, length = Math.min(data.length - 1, offset + 100); offset < length; offset++) {\n        if (mpegaudio.probe(data, offset)) {\n          logger[\"logger\"].log('MPEG Audio sync word found !');\n          return true;\n        }\n      }\n    }\n\n    return false;\n  } // feed incoming data to the front of the parsing pipeline\n  ;\n\n  _proto.append = function append(data, timeOffset, contiguous, accurateTimeOffset) {\n    var id3Data = id3[\"default\"].getID3Data(data, 0);\n    var timestamp = id3[\"default\"].getTimeStamp(id3Data);\n    var pts = timestamp !== undefined ? 90 * timestamp : timeOffset * 90000;\n    var offset = id3Data.length;\n    var length = data.length;\n    var frameIndex = 0,\n        stamp = 0;\n    var track = this._audioTrack;\n    var id3Samples = [{\n      pts: pts,\n      dts: pts,\n      data: id3Data\n    }];\n\n    while (offset < length) {\n      if (mpegaudio.isHeader(data, offset)) {\n        var frame = mpegaudio.appendFrame(track, data, offset, pts, frameIndex);\n\n        if (frame) {\n          offset += frame.length;\n          stamp = frame.sample.pts;\n          frameIndex++;\n        } else {\n          // logger.log('Unable to parse Mpeg audio frame');\n          break;\n        }\n      } else if (id3[\"default\"].isHeader(data, offset)) {\n        id3Data = id3[\"default\"].getID3Data(data, offset);\n        id3Samples.push({\n          pts: stamp,\n          dts: stamp,\n          data: id3Data\n        });\n        offset += id3Data.length;\n      } else {\n        // nothing found, keep looking\n        offset++;\n      }\n    }\n\n    this.remuxer.remux(track, {\n      samples: []\n    }, {\n      samples: id3Samples,\n      inputTimeScale: 90000\n    }, {\n      samples: []\n    }, timeOffset, contiguous, accurateTimeOffset);\n  };\n\n  _proto.destroy = function destroy() {};\n\n  return MP3Demuxer;\n}();\n\n/* harmony default export */ var mp3demuxer = (mp3demuxer_MP3Demuxer);\n// CONCATENATED MODULE: ./src/remux/aac-helper.js\n/**\n *  AAC helper\n */\nvar AAC = /*#__PURE__*/function () {\n  function AAC() {}\n\n  AAC.getSilentFrame = function getSilentFrame(codec, channelCount) {\n    switch (codec) {\n      case 'mp4a.40.2':\n        if (channelCount === 1) {\n          return new Uint8Array([0x00, 0xc8, 0x00, 0x80, 0x23, 0x80]);\n        } else if (channelCount === 2) {\n          return new Uint8Array([0x21, 0x00, 0x49, 0x90, 0x02, 0x19, 0x00, 0x23, 0x80]);\n        } else if (channelCount === 3) {\n          return new Uint8Array([0x00, 0xc8, 0x00, 0x80, 0x20, 0x84, 0x01, 0x26, 0x40, 0x08, 0x64, 0x00, 0x8e]);\n        } else if (channelCount === 4) {\n          return new Uint8Array([0x00, 0xc8, 0x00, 0x80, 0x20, 0x84, 0x01, 0x26, 0x40, 0x08, 0x64, 0x00, 0x80, 0x2c, 0x80, 0x08, 0x02, 0x38]);\n        } else if (channelCount === 5) {\n          return new Uint8Array([0x00, 0xc8, 0x00, 0x80, 0x20, 0x84, 0x01, 0x26, 0x40, 0x08, 0x64, 0x00, 0x82, 0x30, 0x04, 0x99, 0x00, 0x21, 0x90, 0x02, 0x38]);\n        } else if (channelCount === 6) {\n          return new Uint8Array([0x00, 0xc8, 0x00, 0x80, 0x20, 0x84, 0x01, 0x26, 0x40, 0x08, 0x64, 0x00, 0x82, 0x30, 0x04, 0x99, 0x00, 0x21, 0x90, 0x02, 0x00, 0xb2, 0x00, 0x20, 0x08, 0xe0]);\n        }\n\n        break;\n      // handle HE-AAC below (mp4a.40.5 / mp4a.40.29)\n\n      default:\n        if (channelCount === 1) {\n          // ffmpeg -y -f lavfi -i \"aevalsrc=0:d=0.05\" -c:a libfdk_aac -profile:a aac_he -b:a 4k output.aac && hexdump -v -e '16/1 \"0x%x,\" \"\\n\"' -v output.aac\n          return new Uint8Array([0x1, 0x40, 0x22, 0x80, 0xa3, 0x4e, 0xe6, 0x80, 0xba, 0x8, 0x0, 0x0, 0x0, 0x1c, 0x6, 0xf1, 0xc1, 0xa, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5e]);\n        } else if (channelCount === 2) {\n          // ffmpeg -y -f lavfi -i \"aevalsrc=0|0:d=0.05\" -c:a libfdk_aac -profile:a aac_he_v2 -b:a 4k output.aac && hexdump -v -e '16/1 \"0x%x,\" \"\\n\"' -v output.aac\n          return new Uint8Array([0x1, 0x40, 0x22, 0x80, 0xa3, 0x5e, 0xe6, 0x80, 0xba, 0x8, 0x0, 0x0, 0x0, 0x0, 0x95, 0x0, 0x6, 0xf1, 0xa1, 0xa, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5e]);\n        } else if (channelCount === 3) {\n          // ffmpeg -y -f lavfi -i \"aevalsrc=0|0|0:d=0.05\" -c:a libfdk_aac -profile:a aac_he_v2 -b:a 4k output.aac && hexdump -v -e '16/1 \"0x%x,\" \"\\n\"' -v output.aac\n          return new Uint8Array([0x1, 0x40, 0x22, 0x80, 0xa3, 0x5e, 0xe6, 0x80, 0xba, 0x8, 0x0, 0x0, 0x0, 0x0, 0x95, 0x0, 0x6, 0xf1, 0xa1, 0xa, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5a, 0x5e]);\n        }\n\n        break;\n    }\n\n    return null;\n  };\n\n  return AAC;\n}();\n\n/* harmony default export */ var aac_helper = (AAC);\n// CONCATENATED MODULE: ./src/remux/mp4-generator.js\n/**\n * Generate MP4 Box\n*/\nvar UINT32_MAX = Math.pow(2, 32) - 1;\n\nvar MP4 = /*#__PURE__*/function () {\n  function MP4() {}\n\n  MP4.init = function init() {\n    MP4.types = {\n      avc1: [],\n      // codingname\n      avcC: [],\n      btrt: [],\n      dinf: [],\n      dref: [],\n      esds: [],\n      ftyp: [],\n      hdlr: [],\n      mdat: [],\n      mdhd: [],\n      mdia: [],\n      mfhd: [],\n      minf: [],\n      moof: [],\n      moov: [],\n      mp4a: [],\n      '.mp3': [],\n      mvex: [],\n      mvhd: [],\n      pasp: [],\n      sdtp: [],\n      stbl: [],\n      stco: [],\n      stsc: [],\n      stsd: [],\n      stsz: [],\n      stts: [],\n      tfdt: [],\n      tfhd: [],\n      traf: [],\n      trak: [],\n      trun: [],\n      trex: [],\n      tkhd: [],\n      vmhd: [],\n      smhd: []\n    };\n    var i;\n\n    for (i in MP4.types) {\n      if (MP4.types.hasOwnProperty(i)) {\n        MP4.types[i] = [i.charCodeAt(0), i.charCodeAt(1), i.charCodeAt(2), i.charCodeAt(3)];\n      }\n    }\n\n    var videoHdlr = new Uint8Array([0x00, // version 0\n    0x00, 0x00, 0x00, // flags\n    0x00, 0x00, 0x00, 0x00, // pre_defined\n    0x76, 0x69, 0x64, 0x65, // handler_type: 'vide'\n    0x00, 0x00, 0x00, 0x00, // reserved\n    0x00, 0x00, 0x00, 0x00, // reserved\n    0x00, 0x00, 0x00, 0x00, // reserved\n    0x56, 0x69, 0x64, 0x65, 0x6f, 0x48, 0x61, 0x6e, 0x64, 0x6c, 0x65, 0x72, 0x00 // name: 'VideoHandler'\n    ]);\n    var audioHdlr = new Uint8Array([0x00, // version 0\n    0x00, 0x00, 0x00, // flags\n    0x00, 0x00, 0x00, 0x00, // pre_defined\n    0x73, 0x6f, 0x75, 0x6e, // handler_type: 'soun'\n    0x00, 0x00, 0x00, 0x00, // reserved\n    0x00, 0x00, 0x00, 0x00, // reserved\n    0x00, 0x00, 0x00, 0x00, // reserved\n    0x53, 0x6f, 0x75, 0x6e, 0x64, 0x48, 0x61, 0x6e, 0x64, 0x6c, 0x65, 0x72, 0x00 // name: 'SoundHandler'\n    ]);\n    MP4.HDLR_TYPES = {\n      'video': videoHdlr,\n      'audio': audioHdlr\n    };\n    var dref = new Uint8Array([0x00, // version 0\n    0x00, 0x00, 0x00, // flags\n    0x00, 0x00, 0x00, 0x01, // entry_count\n    0x00, 0x00, 0x00, 0x0c, // entry_size\n    0x75, 0x72, 0x6c, 0x20, // 'url' type\n    0x00, // version 0\n    0x00, 0x00, 0x01 // entry_flags\n    ]);\n    var stco = new Uint8Array([0x00, // version\n    0x00, 0x00, 0x00, // flags\n    0x00, 0x00, 0x00, 0x00 // entry_count\n    ]);\n    MP4.STTS = MP4.STSC = MP4.STCO = stco;\n    MP4.STSZ = new Uint8Array([0x00, // version\n    0x00, 0x00, 0x00, // flags\n    0x00, 0x00, 0x00, 0x00, // sample_size\n    0x00, 0x00, 0x00, 0x00 // sample_count\n    ]);\n    MP4.VMHD = new Uint8Array([0x00, // version\n    0x00, 0x00, 0x01, // flags\n    0x00, 0x00, // graphicsmode\n    0x00, 0x00, 0x00, 0x00, 0x00, 0x00 // opcolor\n    ]);\n    MP4.SMHD = new Uint8Array([0x00, // version\n    0x00, 0x00, 0x00, // flags\n    0x00, 0x00, // balance\n    0x00, 0x00 // reserved\n    ]);\n    MP4.STSD = new Uint8Array([0x00, // version 0\n    0x00, 0x00, 0x00, // flags\n    0x00, 0x00, 0x00, 0x01]); // entry_count\n\n    var majorBrand = new Uint8Array([105, 115, 111, 109]); // isom\n\n    var avc1Brand = new Uint8Array([97, 118, 99, 49]); // avc1\n\n    var minorVersion = new Uint8Array([0, 0, 0, 1]);\n    MP4.FTYP = MP4.box(MP4.types.ftyp, majorBrand, minorVersion, majorBrand, avc1Brand);\n    MP4.DINF = MP4.box(MP4.types.dinf, MP4.box(MP4.types.dref, dref));\n  };\n\n  MP4.box = function box(type) {\n    var payload = Array.prototype.slice.call(arguments, 1),\n        size = 8,\n        i = payload.length,\n        len = i,\n        result; // calculate the total size we need to allocate\n\n    while (i--) {\n      size += payload[i].byteLength;\n    }\n\n    result = new Uint8Array(size);\n    result[0] = size >> 24 & 0xff;\n    result[1] = size >> 16 & 0xff;\n    result[2] = size >> 8 & 0xff;\n    result[3] = size & 0xff;\n    result.set(type, 4); // copy the payload into the result\n\n    for (i = 0, size = 8; i < len; i++) {\n      // copy payload[i] array @ offset size\n      result.set(payload[i], size);\n      size += payload[i].byteLength;\n    }\n\n    return result;\n  };\n\n  MP4.hdlr = function hdlr(type) {\n    return MP4.box(MP4.types.hdlr, MP4.HDLR_TYPES[type]);\n  };\n\n  MP4.mdat = function mdat(data) {\n    return MP4.box(MP4.types.mdat, data);\n  };\n\n  MP4.mdhd = function mdhd(timescale, duration) {\n    duration *= timescale;\n    var upperWordDuration = Math.floor(duration / (UINT32_MAX + 1));\n    var lowerWordDuration = Math.floor(duration % (UINT32_MAX + 1));\n    return MP4.box(MP4.types.mdhd, new Uint8Array([0x01, // version 1\n    0x00, 0x00, 0x00, // flags\n    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, // creation_time\n    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03, // modification_time\n    timescale >> 24 & 0xFF, timescale >> 16 & 0xFF, timescale >> 8 & 0xFF, timescale & 0xFF, // timescale\n    upperWordDuration >> 24, upperWordDuration >> 16 & 0xFF, upperWordDuration >> 8 & 0xFF, upperWordDuration & 0xFF, lowerWordDuration >> 24, lowerWordDuration >> 16 & 0xFF, lowerWordDuration >> 8 & 0xFF, lowerWordDuration & 0xFF, 0x55, 0xc4, // 'und' language (undetermined)\n    0x00, 0x00]));\n  };\n\n  MP4.mdia = function mdia(track) {\n    return MP4.box(MP4.types.mdia, MP4.mdhd(track.timescale, track.duration), MP4.hdlr(track.type), MP4.minf(track));\n  };\n\n  MP4.mfhd = function mfhd(sequenceNumber) {\n    return MP4.box(MP4.types.mfhd, new Uint8Array([0x00, 0x00, 0x00, 0x00, // flags\n    sequenceNumber >> 24, sequenceNumber >> 16 & 0xFF, sequenceNumber >> 8 & 0xFF, sequenceNumber & 0xFF // sequence_number\n    ]));\n  };\n\n  MP4.minf = function minf(track) {\n    if (track.type === 'audio') {\n      return MP4.box(MP4.types.minf, MP4.box(MP4.types.smhd, MP4.SMHD), MP4.DINF, MP4.stbl(track));\n    } else {\n      return MP4.box(MP4.types.minf, MP4.box(MP4.types.vmhd, MP4.VMHD), MP4.DINF, MP4.stbl(track));\n    }\n  };\n\n  MP4.moof = function moof(sn, baseMediaDecodeTime, track) {\n    return MP4.box(MP4.types.moof, MP4.mfhd(sn), MP4.traf(track, baseMediaDecodeTime));\n  }\n  /**\n  * @param tracks... (optional) {array} the tracks associated with this movie\n  */\n  ;\n\n  MP4.moov = function moov(tracks) {\n    var i = tracks.length,\n        boxes = [];\n\n    while (i--) {\n      boxes[i] = MP4.trak(tracks[i]);\n    }\n\n    return MP4.box.apply(null, [MP4.types.moov, MP4.mvhd(tracks[0].timescale, tracks[0].duration)].concat(boxes).concat(MP4.mvex(tracks)));\n  };\n\n  MP4.mvex = function mvex(tracks) {\n    var i = tracks.length,\n        boxes = [];\n\n    while (i--) {\n      boxes[i] = MP4.trex(tracks[i]);\n    }\n\n    return MP4.box.apply(null, [MP4.types.mvex].concat(boxes));\n  };\n\n  MP4.mvhd = function mvhd(timescale, duration) {\n    duration *= timescale;\n    var upperWordDuration = Math.floor(duration / (UINT32_MAX + 1));\n    var lowerWordDuration = Math.floor(duration % (UINT32_MAX + 1));\n    var bytes = new Uint8Array([0x01, // version 1\n    0x00, 0x00, 0x00, // flags\n    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, // creation_time\n    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03, // modification_time\n    timescale >> 24 & 0xFF, timescale >> 16 & 0xFF, timescale >> 8 & 0xFF, timescale & 0xFF, // timescale\n    upperWordDuration >> 24, upperWordDuration >> 16 & 0xFF, upperWordDuration >> 8 & 0xFF, upperWordDuration & 0xFF, lowerWordDuration >> 24, lowerWordDuration >> 16 & 0xFF, lowerWordDuration >> 8 & 0xFF, lowerWordDuration & 0xFF, 0x00, 0x01, 0x00, 0x00, // 1.0 rate\n    0x01, 0x00, // 1.0 volume\n    0x00, 0x00, // reserved\n    0x00, 0x00, 0x00, 0x00, // reserved\n    0x00, 0x00, 0x00, 0x00, // reserved\n    0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x00, 0x00, 0x00, // transformation: unity matrix\n    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // pre_defined\n    0xff, 0xff, 0xff, 0xff // next_track_ID\n    ]);\n    return MP4.box(MP4.types.mvhd, bytes);\n  };\n\n  MP4.sdtp = function sdtp(track) {\n    var samples = track.samples || [],\n        bytes = new Uint8Array(4 + samples.length),\n        flags,\n        i; // leave the full box header (4 bytes) all zero\n    // write the sample table\n\n    for (i = 0; i < samples.length; i++) {\n      flags = samples[i].flags;\n      bytes[i + 4] = flags.dependsOn << 4 | flags.isDependedOn << 2 | flags.hasRedundancy;\n    }\n\n    return MP4.box(MP4.types.sdtp, bytes);\n  };\n\n  MP4.stbl = function stbl(track) {\n    return MP4.box(MP4.types.stbl, MP4.stsd(track), MP4.box(MP4.types.stts, MP4.STTS), MP4.box(MP4.types.stsc, MP4.STSC), MP4.box(MP4.types.stsz, MP4.STSZ), MP4.box(MP4.types.stco, MP4.STCO));\n  };\n\n  MP4.avc1 = function avc1(track) {\n    var sps = [],\n        pps = [],\n        i,\n        data,\n        len; // assemble the SPSs\n\n    for (i = 0; i < track.sps.length; i++) {\n      data = track.sps[i];\n      len = data.byteLength;\n      sps.push(len >>> 8 & 0xFF);\n      sps.push(len & 0xFF); // SPS\n\n      sps = sps.concat(Array.prototype.slice.call(data));\n    } // assemble the PPSs\n\n\n    for (i = 0; i < track.pps.length; i++) {\n      data = track.pps[i];\n      len = data.byteLength;\n      pps.push(len >>> 8 & 0xFF);\n      pps.push(len & 0xFF);\n      pps = pps.concat(Array.prototype.slice.call(data));\n    }\n\n    var avcc = MP4.box(MP4.types.avcC, new Uint8Array([0x01, // version\n    sps[3], // profile\n    sps[4], // profile compat\n    sps[5], // level\n    0xfc | 3, // lengthSizeMinusOne, hard-coded to 4 bytes\n    0xE0 | track.sps.length // 3bit reserved (111) + numOfSequenceParameterSets\n    ].concat(sps).concat([track.pps.length // numOfPictureParameterSets\n    ]).concat(pps))),\n        // \"PPS\"\n    width = track.width,\n        height = track.height,\n        hSpacing = track.pixelRatio[0],\n        vSpacing = track.pixelRatio[1];\n    return MP4.box(MP4.types.avc1, new Uint8Array([0x00, 0x00, 0x00, // reserved\n    0x00, 0x00, 0x00, // reserved\n    0x00, 0x01, // data_reference_index\n    0x00, 0x00, // pre_defined\n    0x00, 0x00, // reserved\n    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // pre_defined\n    width >> 8 & 0xFF, width & 0xff, // width\n    height >> 8 & 0xFF, height & 0xff, // height\n    0x00, 0x48, 0x00, 0x00, // horizresolution\n    0x00, 0x48, 0x00, 0x00, // vertresolution\n    0x00, 0x00, 0x00, 0x00, // reserved\n    0x00, 0x01, // frame_count\n    0x12, 0x64, 0x61, 0x69, 0x6C, // dailymotion/hls.js\n    0x79, 0x6D, 0x6F, 0x74, 0x69, 0x6F, 0x6E, 0x2F, 0x68, 0x6C, 0x73, 0x2E, 0x6A, 0x73, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // compressorname\n    0x00, 0x18, // depth = 24\n    0x11, 0x11]), // pre_defined = -1\n    avcc, MP4.box(MP4.types.btrt, new Uint8Array([0x00, 0x1c, 0x9c, 0x80, // bufferSizeDB\n    0x00, 0x2d, 0xc6, 0xc0, // maxBitrate\n    0x00, 0x2d, 0xc6, 0xc0])), // avgBitrate\n    MP4.box(MP4.types.pasp, new Uint8Array([hSpacing >> 24, // hSpacing\n    hSpacing >> 16 & 0xFF, hSpacing >> 8 & 0xFF, hSpacing & 0xFF, vSpacing >> 24, // vSpacing\n    vSpacing >> 16 & 0xFF, vSpacing >> 8 & 0xFF, vSpacing & 0xFF])));\n  };\n\n  MP4.esds = function esds(track) {\n    var configlen = track.config.length;\n    return new Uint8Array([0x00, // version 0\n    0x00, 0x00, 0x00, // flags\n    0x03, // descriptor_type\n    0x17 + configlen, // length\n    0x00, 0x01, // es_id\n    0x00, // stream_priority\n    0x04, // descriptor_type\n    0x0f + configlen, // length\n    0x40, // codec : mpeg4_audio\n    0x15, // stream_type\n    0x00, 0x00, 0x00, // buffer_size\n    0x00, 0x00, 0x00, 0x00, // maxBitrate\n    0x00, 0x00, 0x00, 0x00, // avgBitrate\n    0x05 // descriptor_type\n    ].concat([configlen]).concat(track.config).concat([0x06, 0x01, 0x02])); // GASpecificConfig)); // length + audio config descriptor\n  };\n\n  MP4.mp4a = function mp4a(track) {\n    var samplerate = track.samplerate;\n    return MP4.box(MP4.types.mp4a, new Uint8Array([0x00, 0x00, 0x00, // reserved\n    0x00, 0x00, 0x00, // reserved\n    0x00, 0x01, // data_reference_index\n    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // reserved\n    0x00, track.channelCount, // channelcount\n    0x00, 0x10, // sampleSize:16bits\n    0x00, 0x00, 0x00, 0x00, // reserved2\n    samplerate >> 8 & 0xFF, samplerate & 0xff, //\n    0x00, 0x00]), MP4.box(MP4.types.esds, MP4.esds(track)));\n  };\n\n  MP4.mp3 = function mp3(track) {\n    var samplerate = track.samplerate;\n    return MP4.box(MP4.types['.mp3'], new Uint8Array([0x00, 0x00, 0x00, // reserved\n    0x00, 0x00, 0x00, // reserved\n    0x00, 0x01, // data_reference_index\n    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // reserved\n    0x00, track.channelCount, // channelcount\n    0x00, 0x10, // sampleSize:16bits\n    0x00, 0x00, 0x00, 0x00, // reserved2\n    samplerate >> 8 & 0xFF, samplerate & 0xff, //\n    0x00, 0x00]));\n  };\n\n  MP4.stsd = function stsd(track) {\n    if (track.type === 'audio') {\n      if (!track.isAAC && track.codec === 'mp3') {\n        return MP4.box(MP4.types.stsd, MP4.STSD, MP4.mp3(track));\n      }\n\n      return MP4.box(MP4.types.stsd, MP4.STSD, MP4.mp4a(track));\n    } else {\n      return MP4.box(MP4.types.stsd, MP4.STSD, MP4.avc1(track));\n    }\n  };\n\n  MP4.tkhd = function tkhd(track) {\n    var id = track.id,\n        duration = track.duration * track.timescale,\n        width = track.width,\n        height = track.height,\n        upperWordDuration = Math.floor(duration / (UINT32_MAX + 1)),\n        lowerWordDuration = Math.floor(duration % (UINT32_MAX + 1));\n    return MP4.box(MP4.types.tkhd, new Uint8Array([0x01, // version 1\n    0x00, 0x00, 0x07, // flags\n    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, // creation_time\n    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03, // modification_time\n    id >> 24 & 0xFF, id >> 16 & 0xFF, id >> 8 & 0xFF, id & 0xFF, // track_ID\n    0x00, 0x00, 0x00, 0x00, // reserved\n    upperWordDuration >> 24, upperWordDuration >> 16 & 0xFF, upperWordDuration >> 8 & 0xFF, upperWordDuration & 0xFF, lowerWordDuration >> 24, lowerWordDuration >> 16 & 0xFF, lowerWordDuration >> 8 & 0xFF, lowerWordDuration & 0xFF, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // reserved\n    0x00, 0x00, // layer\n    0x00, 0x00, // alternate_group\n    0x00, 0x00, // non-audio track volume\n    0x00, 0x00, // reserved\n    0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x00, 0x00, 0x00, // transformation: unity matrix\n    width >> 8 & 0xFF, width & 0xFF, 0x00, 0x00, // width\n    height >> 8 & 0xFF, height & 0xFF, 0x00, 0x00 // height\n    ]));\n  };\n\n  MP4.traf = function traf(track, baseMediaDecodeTime) {\n    var sampleDependencyTable = MP4.sdtp(track),\n        id = track.id,\n        upperWordBaseMediaDecodeTime = Math.floor(baseMediaDecodeTime / (UINT32_MAX + 1)),\n        lowerWordBaseMediaDecodeTime = Math.floor(baseMediaDecodeTime % (UINT32_MAX + 1));\n    return MP4.box(MP4.types.traf, MP4.box(MP4.types.tfhd, new Uint8Array([0x00, // version 0\n    0x00, 0x00, 0x00, // flags\n    id >> 24, id >> 16 & 0XFF, id >> 8 & 0XFF, id & 0xFF // track_ID\n    ])), MP4.box(MP4.types.tfdt, new Uint8Array([0x01, // version 1\n    0x00, 0x00, 0x00, // flags\n    upperWordBaseMediaDecodeTime >> 24, upperWordBaseMediaDecodeTime >> 16 & 0XFF, upperWordBaseMediaDecodeTime >> 8 & 0XFF, upperWordBaseMediaDecodeTime & 0xFF, lowerWordBaseMediaDecodeTime >> 24, lowerWordBaseMediaDecodeTime >> 16 & 0XFF, lowerWordBaseMediaDecodeTime >> 8 & 0XFF, lowerWordBaseMediaDecodeTime & 0xFF])), MP4.trun(track, sampleDependencyTable.length + 16 + // tfhd\n    20 + // tfdt\n    8 + // traf header\n    16 + // mfhd\n    8 + // moof header\n    8), // mdat header\n    sampleDependencyTable);\n  }\n  /**\n   * Generate a track box.\n   * @param track {object} a track definition\n   * @return {Uint8Array} the track box\n   */\n  ;\n\n  MP4.trak = function trak(track) {\n    track.duration = track.duration || 0xffffffff;\n    return MP4.box(MP4.types.trak, MP4.tkhd(track), MP4.mdia(track));\n  };\n\n  MP4.trex = function trex(track) {\n    var id = track.id;\n    return MP4.box(MP4.types.trex, new Uint8Array([0x00, // version 0\n    0x00, 0x00, 0x00, // flags\n    id >> 24, id >> 16 & 0XFF, id >> 8 & 0XFF, id & 0xFF, // track_ID\n    0x00, 0x00, 0x00, 0x01, // default_sample_description_index\n    0x00, 0x00, 0x00, 0x00, // default_sample_duration\n    0x00, 0x00, 0x00, 0x00, // default_sample_size\n    0x00, 0x01, 0x00, 0x01 // default_sample_flags\n    ]));\n  };\n\n  MP4.trun = function trun(track, offset) {\n    var samples = track.samples || [],\n        len = samples.length,\n        arraylen = 12 + 16 * len,\n        array = new Uint8Array(arraylen),\n        i,\n        sample,\n        duration,\n        size,\n        flags,\n        cts;\n    offset += 8 + arraylen;\n    array.set([0x00, // version 0\n    0x00, 0x0f, 0x01, // flags\n    len >>> 24 & 0xFF, len >>> 16 & 0xFF, len >>> 8 & 0xFF, len & 0xFF, // sample_count\n    offset >>> 24 & 0xFF, offset >>> 16 & 0xFF, offset >>> 8 & 0xFF, offset & 0xFF // data_offset\n    ], 0);\n\n    for (i = 0; i < len; i++) {\n      sample = samples[i];\n      duration = sample.duration;\n      size = sample.size;\n      flags = sample.flags;\n      cts = sample.cts;\n      array.set([duration >>> 24 & 0xFF, duration >>> 16 & 0xFF, duration >>> 8 & 0xFF, duration & 0xFF, // sample_duration\n      size >>> 24 & 0xFF, size >>> 16 & 0xFF, size >>> 8 & 0xFF, size & 0xFF, // sample_size\n      flags.isLeading << 2 | flags.dependsOn, flags.isDependedOn << 6 | flags.hasRedundancy << 4 | flags.paddingValue << 1 | flags.isNonSync, flags.degradPrio & 0xF0 << 8, flags.degradPrio & 0x0F, // sample_flags\n      cts >>> 24 & 0xFF, cts >>> 16 & 0xFF, cts >>> 8 & 0xFF, cts & 0xFF // sample_composition_time_offset\n      ], 12 + 16 * i);\n    }\n\n    return MP4.box(MP4.types.trun, array);\n  };\n\n  MP4.initSegment = function initSegment(tracks) {\n    if (!MP4.types) {\n      MP4.init();\n    }\n\n    var movie = MP4.moov(tracks),\n        result;\n    result = new Uint8Array(MP4.FTYP.byteLength + movie.byteLength);\n    result.set(MP4.FTYP);\n    result.set(movie, MP4.FTYP.byteLength);\n    return result;\n  };\n\n  return MP4;\n}();\n\n/* harmony default export */ var mp4_generator = (MP4);\n// CONCATENATED MODULE: ./src/utils/timescale-conversion.ts\nvar MPEG_TS_CLOCK_FREQ_HZ = 90000;\nfunction toTimescaleFromScale(value, destScale, srcScale, round) {\n  if (srcScale === void 0) {\n    srcScale = 1;\n  }\n\n  if (round === void 0) {\n    round = false;\n  }\n\n  return toTimescaleFromBase(value, destScale, 1 / srcScale);\n}\nfunction toTimescaleFromBase(value, destScale, srcBase, round) {\n  if (srcBase === void 0) {\n    srcBase = 1;\n  }\n\n  if (round === void 0) {\n    round = false;\n  }\n\n  var result = value * destScale * srcBase; // equivalent to `(value * scale) / (1 / base)`\n\n  return round ? Math.round(result) : result;\n}\nfunction toMsFromMpegTsClock(value, round) {\n  if (round === void 0) {\n    round = false;\n  }\n\n  return toTimescaleFromBase(value, 1000, 1 / MPEG_TS_CLOCK_FREQ_HZ, round);\n}\nfunction toMpegTsClockFromTimescale(value, srcScale) {\n  if (srcScale === void 0) {\n    srcScale = 1;\n  }\n\n  return toTimescaleFromBase(value, MPEG_TS_CLOCK_FREQ_HZ, 1 / srcScale);\n}\n// CONCATENATED MODULE: ./src/remux/mp4-remuxer.js\n/**\n * fMP4 remuxer\n*/\n\n\n\n\n\n\nvar MAX_SILENT_FRAME_DURATION_90KHZ = toMpegTsClockFromTimescale(10);\nvar PTS_DTS_SHIFT_TOLERANCE_90KHZ = toMpegTsClockFromTimescale(0.2);\n\nvar mp4_remuxer_MP4Remuxer = /*#__PURE__*/function () {\n  function MP4Remuxer(observer, config, typeSupported, vendor) {\n    this.observer = observer;\n    this.config = config;\n    this.typeSupported = typeSupported;\n    var userAgent = navigator.userAgent;\n    this.isSafari = vendor && vendor.indexOf('Apple') > -1 && userAgent && !userAgent.match('CriOS');\n    this.ISGenerated = false;\n  }\n\n  var _proto = MP4Remuxer.prototype;\n\n  _proto.destroy = function destroy() {};\n\n  _proto.resetTimeStamp = function resetTimeStamp(defaultTimeStamp) {\n    this._initPTS = this._initDTS = defaultTimeStamp;\n  };\n\n  _proto.resetInitSegment = function resetInitSegment() {\n    this.ISGenerated = false;\n  };\n\n  _proto.remux = function remux(audioTrack, videoTrack, id3Track, textTrack, timeOffset, contiguous, accurateTimeOffset) {\n    // generate Init Segment if needed\n    if (!this.ISGenerated) {\n      this.generateIS(audioTrack, videoTrack, timeOffset);\n    }\n\n    if (this.ISGenerated) {\n      var nbAudioSamples = audioTrack.samples.length;\n      var nbVideoSamples = videoTrack.samples.length;\n      var audioTimeOffset = timeOffset;\n      var videoTimeOffset = timeOffset;\n\n      if (nbAudioSamples && nbVideoSamples) {\n        // timeOffset is expected to be the offset of the first timestamp of this fragment (first DTS)\n        // if first audio DTS is not aligned with first video DTS then we need to take that into account\n        // when providing timeOffset to remuxAudio / remuxVideo. if we don't do that, there might be a permanent / small\n        // drift between audio and video streams\n        var audiovideoDeltaDts = (audioTrack.samples[0].pts - videoTrack.samples[0].pts) / videoTrack.inputTimeScale;\n        audioTimeOffset += Math.max(0, audiovideoDeltaDts);\n        videoTimeOffset += Math.max(0, -audiovideoDeltaDts);\n      } // Purposefully remuxing audio before video, so that remuxVideo can use nextAudioPts, which is\n      // calculated in remuxAudio.\n      // logger.log('nb AAC samples:' + audioTrack.samples.length);\n\n\n      if (nbAudioSamples) {\n        // if initSegment was generated without video samples, regenerate it again\n        if (!audioTrack.timescale) {\n          logger[\"logger\"].warn('regenerate InitSegment as audio detected');\n          this.generateIS(audioTrack, videoTrack, timeOffset);\n        }\n\n        var audioData = this.remuxAudio(audioTrack, audioTimeOffset, contiguous, accurateTimeOffset); // logger.log('nb AVC samples:' + videoTrack.samples.length);\n\n        if (nbVideoSamples) {\n          var audioTrackLength;\n\n          if (audioData) {\n            audioTrackLength = audioData.endPTS - audioData.startPTS;\n          } // if initSegment was generated without video samples, regenerate it again\n\n\n          if (!videoTrack.timescale) {\n            logger[\"logger\"].warn('regenerate InitSegment as video detected');\n            this.generateIS(audioTrack, videoTrack, timeOffset);\n          }\n\n          this.remuxVideo(videoTrack, videoTimeOffset, contiguous, audioTrackLength, accurateTimeOffset);\n        }\n      } else {\n        // logger.log('nb AVC samples:' + videoTrack.samples.length);\n        if (nbVideoSamples) {\n          var videoData = this.remuxVideo(videoTrack, videoTimeOffset, contiguous, 0, accurateTimeOffset);\n\n          if (videoData && audioTrack.codec) {\n            this.remuxEmptyAudio(audioTrack, audioTimeOffset, contiguous, videoData);\n          }\n        }\n      }\n    } // logger.log('nb ID3 samples:' + audioTrack.samples.length);\n\n\n    if (id3Track.samples.length) {\n      this.remuxID3(id3Track, timeOffset);\n    } // logger.log('nb ID3 samples:' + audioTrack.samples.length);\n\n\n    if (textTrack.samples.length) {\n      this.remuxText(textTrack, timeOffset);\n    } // notify end of parsing\n\n\n    this.observer.trigger(events[\"default\"].FRAG_PARSED);\n  };\n\n  _proto.generateIS = function generateIS(audioTrack, videoTrack, timeOffset) {\n    var observer = this.observer,\n        audioSamples = audioTrack.samples,\n        videoSamples = videoTrack.samples,\n        typeSupported = this.typeSupported,\n        container = 'audio/mp4',\n        tracks = {},\n        data = {\n      tracks: tracks\n    },\n        computePTSDTS = this._initPTS === undefined,\n        initPTS,\n        initDTS;\n\n    if (computePTSDTS) {\n      initPTS = initDTS = Infinity;\n    }\n\n    if (audioTrack.config && audioSamples.length) {\n      // let's use audio sampling rate as MP4 time scale.\n      // rationale is that there is a integer nb of audio frames per audio sample (1024 for AAC)\n      // using audio sampling rate here helps having an integer MP4 frame duration\n      // this avoids potential rounding issue and AV sync issue\n      audioTrack.timescale = audioTrack.samplerate;\n      logger[\"logger\"].log(\"audio sampling rate : \" + audioTrack.samplerate);\n\n      if (!audioTrack.isAAC) {\n        if (typeSupported.mpeg) {\n          // Chrome and Safari\n          container = 'audio/mpeg';\n          audioTrack.codec = '';\n        } else if (typeSupported.mp3) {\n          // Firefox\n          audioTrack.codec = 'mp3';\n        }\n      }\n\n      tracks.audio = {\n        container: container,\n        codec: audioTrack.codec,\n        initSegment: !audioTrack.isAAC && typeSupported.mpeg ? new Uint8Array() : mp4_generator.initSegment([audioTrack]),\n        metadata: {\n          channelCount: audioTrack.channelCount\n        }\n      };\n\n      if (computePTSDTS) {\n        // remember first PTS of this demuxing context. for audio, PTS = DTS\n        initPTS = initDTS = audioSamples[0].pts - Math.round(audioTrack.inputTimeScale * timeOffset);\n      }\n    }\n\n    if (videoTrack.sps && videoTrack.pps && videoSamples.length) {\n      // let's use input time scale as MP4 video timescale\n      // we use input time scale straight away to avoid rounding issues on frame duration / cts computation\n      var inputTimeScale = videoTrack.inputTimeScale;\n      videoTrack.timescale = inputTimeScale;\n      tracks.video = {\n        container: 'video/mp4',\n        codec: videoTrack.codec,\n        initSegment: mp4_generator.initSegment([videoTrack]),\n        metadata: {\n          width: videoTrack.width,\n          height: videoTrack.height\n        }\n      };\n\n      if (computePTSDTS) {\n        var startPTS = Math.round(inputTimeScale * timeOffset);\n        initPTS = Math.min(initPTS, videoSamples[0].pts - startPTS);\n        initDTS = Math.min(initDTS, videoSamples[0].dts - startPTS);\n        this.observer.trigger(events[\"default\"].INIT_PTS_FOUND, {\n          initPTS: initPTS\n        });\n      }\n    } else if (computePTSDTS && tracks.audio) {\n      // initPTS found for audio-only stream with main and alt audio\n      this.observer.trigger(events[\"default\"].INIT_PTS_FOUND, {\n        initPTS: initPTS\n      });\n    }\n\n    if (Object.keys(tracks).length) {\n      observer.trigger(events[\"default\"].FRAG_PARSING_INIT_SEGMENT, data);\n      this.ISGenerated = true;\n\n      if (computePTSDTS) {\n        this._initPTS = initPTS;\n        this._initDTS = initDTS;\n      }\n    } else {\n      observer.trigger(events[\"default\"].ERROR, {\n        type: errors[\"ErrorTypes\"].MEDIA_ERROR,\n        details: errors[\"ErrorDetails\"].FRAG_PARSING_ERROR,\n        fatal: false,\n        reason: 'no audio/video samples found'\n      });\n    }\n  };\n\n  _proto.remuxVideo = function remuxVideo(track, timeOffset, contiguous, audioTrackLength, accurateTimeOffset) {\n    var offset = 8;\n    var mp4SampleDuration;\n    var mdat;\n    var moof;\n    var firstDTS;\n    var lastDTS;\n    var minPTS = Number.MAX_SAFE_INTEGER;\n    var maxPTS = -Number.MAX_SAFE_INTEGER;\n    var timeScale = track.timescale;\n    var inputSamples = track.samples;\n    var outputSamples = [];\n    var nbSamples = inputSamples.length;\n    var ptsNormalize = this._PTSNormalize;\n    var initPTS = this._initPTS; // if parsed fragment is contiguous with last one, let's use last DTS value as reference\n\n    var nextAvcDts = this.nextAvcDts;\n    var isSafari = this.isSafari;\n\n    if (nbSamples === 0) {\n      return;\n    } // Safari does not like overlapping DTS on consecutive fragments. let's use nextAvcDts to overcome this if fragments are consecutive\n\n\n    if (isSafari) {\n      // also consider consecutive fragments as being contiguous (even if a level switch occurs),\n      // for sake of clarity:\n      // consecutive fragments are frags with\n      //  - less than 100ms gaps between new time offset (if accurate) and next expected PTS OR\n      //  - less than 200 ms PTS gaps (timeScale/5)\n      contiguous |= inputSamples.length && nextAvcDts && (accurateTimeOffset && Math.abs(timeOffset - nextAvcDts / timeScale) < 0.1 || Math.abs(inputSamples[0].pts - nextAvcDts - initPTS) < timeScale / 5);\n    }\n\n    if (!contiguous) {\n      // if not contiguous, let's use target timeOffset\n      nextAvcDts = timeOffset * timeScale;\n    } // PTS is coded on 33bits, and can loop from -2^32 to 2^32\n    // ptsNormalize will make PTS/DTS value monotonic, we use last known DTS value as reference value\n\n\n    inputSamples.forEach(function (sample) {\n      sample.pts = ptsNormalize(sample.pts - initPTS, nextAvcDts);\n      sample.dts = ptsNormalize(sample.dts - initPTS, nextAvcDts);\n      minPTS = Math.min(sample.pts, minPTS);\n      maxPTS = Math.max(sample.pts, maxPTS);\n    }); // sort video samples by DTS then PTS then demux id order\n\n    inputSamples.sort(function (a, b) {\n      var deltadts = a.dts - b.dts;\n      var deltapts = a.pts - b.pts;\n      return deltadts || deltapts || a.id - b.id;\n    }); // handle broken streams with PTS < DTS, tolerance up 0.2 seconds\n\n    var PTSDTSshift = inputSamples.reduce(function (prev, curr) {\n      return Math.max(Math.min(prev, curr.pts - curr.dts), -1 * PTS_DTS_SHIFT_TOLERANCE_90KHZ);\n    }, 0);\n\n    if (PTSDTSshift < 0) {\n      logger[\"logger\"].warn(\"PTS < DTS detected in video samples, shifting DTS by \" + toMsFromMpegTsClock(PTSDTSshift, true) + \" ms to overcome this issue\");\n\n      for (var i = 0; i < inputSamples.length; i++) {\n        inputSamples[i].dts = Math.max(0, inputSamples[i].dts + PTSDTSshift);\n      }\n    } // Get first/last DTS\n\n\n    firstDTS = inputSamples[0].dts;\n    lastDTS = inputSamples[inputSamples.length - 1].dts; // check timestamp continuity across consecutive fragments (this is to remove inter-fragment gap/hole)\n\n    var delta = firstDTS - nextAvcDts; // if fragment are contiguous, detect hole/overlapping between fragments\n\n    if (contiguous) {\n      var foundHole = delta > 2;\n      var foundOverlap = delta < -1;\n\n      if (foundHole || foundOverlap) {\n        if (foundHole) {\n          logger[\"logger\"].warn(\"AVC: \" + toMsFromMpegTsClock(delta, true) + \"ms (\" + delta + \"dts) hole between fragments detected, filling it\");\n        } else {\n          logger[\"logger\"].warn(\"AVC: \" + toMsFromMpegTsClock(-delta, true) + \"ms (\" + delta + \"dts) overlapping between fragments detected\");\n        }\n\n        firstDTS = nextAvcDts;\n        minPTS -= delta;\n        inputSamples[0].dts = firstDTS;\n        inputSamples[0].pts = minPTS;\n        logger[\"logger\"].log(\"Video: PTS/DTS adjusted: \" + toMsFromMpegTsClock(minPTS, true) + \"/\" + toMsFromMpegTsClock(firstDTS, true) + \", delta: \" + toMsFromMpegTsClock(delta, true) + \" ms\");\n      }\n    } // on Safari let's signal the same sample duration for all samples\n    // sample duration (as expected by trun MP4 boxes), should be the delta between sample DTS\n    // set this constant duration as being the avg delta between consecutive DTS.\n\n\n    if (isSafari) {\n      mp4SampleDuration = Math.round((lastDTS - firstDTS) / (inputSamples.length - 1));\n    } // Clamp first DTS to 0 so that we're still aligning on initPTS,\n    // and not passing negative values to MP4.traf. This will change initial frame compositionTimeOffset!\n\n\n    firstDTS = Math.max(firstDTS, 0);\n    var nbNalu = 0,\n        naluLen = 0;\n\n    for (var _i = 0; _i < nbSamples; _i++) {\n      // compute total/avc sample length and nb of NAL units\n      var sample = inputSamples[_i],\n          units = sample.units,\n          nbUnits = units.length,\n          sampleLen = 0;\n\n      for (var j = 0; j < nbUnits; j++) {\n        sampleLen += units[j].data.length;\n      }\n\n      naluLen += sampleLen;\n      nbNalu += nbUnits;\n      sample.length = sampleLen; // normalize PTS/DTS\n\n      if (isSafari) {\n        // sample DTS is computed using a constant decoding offset (mp4SampleDuration) between samples\n        sample.dts = firstDTS + _i * mp4SampleDuration;\n      } else {\n        // ensure sample monotonic DTS\n        sample.dts = Math.max(sample.dts, firstDTS);\n      } // ensure that computed value is greater or equal than sample DTS\n\n\n      sample.pts = Math.max(sample.pts, sample.dts);\n    }\n    /* concatenate the video data and construct the mdat in place\n      (need 8 more bytes to fill length and mpdat type) */\n\n\n    var mdatSize = naluLen + 4 * nbNalu + 8;\n\n    try {\n      mdat = new Uint8Array(mdatSize);\n    } catch (err) {\n      this.observer.trigger(events[\"default\"].ERROR, {\n        type: errors[\"ErrorTypes\"].MUX_ERROR,\n        details: errors[\"ErrorDetails\"].REMUX_ALLOC_ERROR,\n        fatal: false,\n        bytes: mdatSize,\n        reason: \"fail allocating video mdat \" + mdatSize\n      });\n      return;\n    }\n\n    var view = new DataView(mdat.buffer);\n    view.setUint32(0, mdatSize);\n    mdat.set(mp4_generator.types.mdat, 4);\n\n    for (var _i2 = 0; _i2 < nbSamples; _i2++) {\n      var avcSample = inputSamples[_i2],\n          avcSampleUnits = avcSample.units,\n          mp4SampleLength = 0,\n          compositionTimeOffset = void 0; // convert NALU bitstream to MP4 format (prepend NALU with size field)\n\n      for (var _j = 0, _nbUnits = avcSampleUnits.length; _j < _nbUnits; _j++) {\n        var unit = avcSampleUnits[_j],\n            unitData = unit.data,\n            unitDataLen = unit.data.byteLength;\n        view.setUint32(offset, unitDataLen);\n        offset += 4;\n        mdat.set(unitData, offset);\n        offset += unitDataLen;\n        mp4SampleLength += 4 + unitDataLen;\n      }\n\n      if (!isSafari) {\n        // expected sample duration is the Decoding Timestamp diff of consecutive samples\n        if (_i2 < nbSamples - 1) {\n          mp4SampleDuration = inputSamples[_i2 + 1].dts - avcSample.dts;\n        } else {\n          var config = this.config,\n              lastFrameDuration = avcSample.dts - inputSamples[_i2 > 0 ? _i2 - 1 : _i2].dts;\n\n          if (config.stretchShortVideoTrack) {\n            // In some cases, a segment's audio track duration may exceed the video track duration.\n            // Since we've already remuxed audio, and we know how long the audio track is, we look to\n            // see if the delta to the next segment is longer than maxBufferHole.\n            // If so, playback would potentially get stuck, so we artificially inflate\n            // the duration of the last frame to minimize any potential gap between segments.\n            var maxBufferHole = config.maxBufferHole,\n                gapTolerance = Math.floor(maxBufferHole * timeScale),\n                deltaToFrameEnd = (audioTrackLength ? minPTS + audioTrackLength * timeScale : this.nextAudioPts) - avcSample.pts;\n\n            if (deltaToFrameEnd > gapTolerance) {\n              // We subtract lastFrameDuration from deltaToFrameEnd to try to prevent any video\n              // frame overlap. maxBufferHole should be >> lastFrameDuration anyway.\n              mp4SampleDuration = deltaToFrameEnd - lastFrameDuration;\n\n              if (mp4SampleDuration < 0) {\n                mp4SampleDuration = lastFrameDuration;\n              }\n\n              logger[\"logger\"].log(\"It is approximately \" + toMsFromMpegTsClock(deltaToFrameEnd, false) + \" ms to the next segment; using duration \" + toMsFromMpegTsClock(mp4SampleDuration, false) + \" ms for the last video frame.\");\n            } else {\n              mp4SampleDuration = lastFrameDuration;\n            }\n          } else {\n            mp4SampleDuration = lastFrameDuration;\n          }\n        }\n\n        compositionTimeOffset = Math.round(avcSample.pts - avcSample.dts);\n      } else {\n        compositionTimeOffset = Math.max(0, mp4SampleDuration * Math.round((avcSample.pts - avcSample.dts) / mp4SampleDuration));\n      } // console.log('PTS/DTS/initDTS/normPTS/normDTS/relative PTS : ${avcSample.pts}/${avcSample.dts}/${initDTS}/${ptsnorm}/${dtsnorm}/${(avcSample.pts/4294967296).toFixed(3)}');\n\n\n      outputSamples.push({\n        size: mp4SampleLength,\n        // constant duration\n        duration: mp4SampleDuration,\n        cts: compositionTimeOffset,\n        flags: {\n          isLeading: 0,\n          isDependedOn: 0,\n          hasRedundancy: 0,\n          degradPrio: 0,\n          dependsOn: avcSample.key ? 2 : 1,\n          isNonSync: avcSample.key ? 0 : 1\n        }\n      });\n    } // next AVC sample DTS should be equal to last sample DTS + last sample duration (in PES timescale)\n\n\n    this.nextAvcDts = lastDTS + mp4SampleDuration;\n    var dropped = track.dropped;\n    track.nbNalu = 0;\n    track.dropped = 0;\n\n    if (outputSamples.length && navigator.userAgent.toLowerCase().indexOf('chrome') > -1) {\n      var flags = outputSamples[0].flags; // chrome workaround, mark first sample as being a Random Access Point to avoid sourcebuffer append issue\n      // https://code.google.com/p/chromium/issues/detail?id=229412\n\n      flags.dependsOn = 2;\n      flags.isNonSync = 0;\n    }\n\n    track.samples = outputSamples;\n    moof = mp4_generator.moof(track.sequenceNumber++, firstDTS, track);\n    track.samples = [];\n    var data = {\n      data1: moof,\n      data2: mdat,\n      startPTS: minPTS / timeScale,\n      endPTS: (maxPTS + mp4SampleDuration) / timeScale,\n      startDTS: firstDTS / timeScale,\n      endDTS: this.nextAvcDts / timeScale,\n      type: 'video',\n      hasAudio: false,\n      hasVideo: true,\n      nb: outputSamples.length,\n      dropped: dropped\n    };\n    this.observer.trigger(events[\"default\"].FRAG_PARSING_DATA, data);\n    return data;\n  };\n\n  _proto.remuxAudio = function remuxAudio(track, timeOffset, contiguous, accurateTimeOffset) {\n    var inputTimeScale = track.inputTimeScale;\n    var mp4timeScale = track.timescale;\n    var scaleFactor = inputTimeScale / mp4timeScale;\n    var mp4SampleDuration = track.isAAC ? 1024 : 1152;\n    var inputSampleDuration = mp4SampleDuration * scaleFactor;\n    var ptsNormalize = this._PTSNormalize;\n    var initPTS = this._initPTS;\n    var rawMPEG = !track.isAAC && this.typeSupported.mpeg;\n    var mp4Sample;\n    var fillFrame;\n    var mdat;\n    var moof;\n    var firstPTS;\n    var lastPTS;\n    var offset = rawMPEG ? 0 : 8;\n    var inputSamples = track.samples;\n    var outputSamples = [];\n    var nextAudioPts = this.nextAudioPts; // for audio samples, also consider consecutive fragments as being contiguous (even if a level switch occurs),\n    // for sake of clarity:\n    // consecutive fragments are frags with\n    //  - less than 100ms gaps between new time offset (if accurate) and next expected PTS OR\n    //  - less than 20 audio frames distance\n    // contiguous fragments are consecutive fragments from same quality level (same level, new SN = old SN + 1)\n    // this helps ensuring audio continuity\n    // and this also avoids audio glitches/cut when switching quality, or reporting wrong duration on first audio frame\n\n    contiguous |= inputSamples.length && nextAudioPts && (accurateTimeOffset && Math.abs(timeOffset - nextAudioPts / inputTimeScale) < 0.1 || Math.abs(inputSamples[0].pts - nextAudioPts - initPTS) < 20 * inputSampleDuration); // compute normalized PTS\n\n    inputSamples.forEach(function (sample) {\n      sample.pts = sample.dts = ptsNormalize(sample.pts - initPTS, timeOffset * inputTimeScale);\n    }); // filter out sample with negative PTS that are not playable anyway\n    // if we don't remove these negative samples, they will shift all audio samples forward.\n    // leading to audio overlap between current / next fragment\n\n    inputSamples = inputSamples.filter(function (sample) {\n      return sample.pts >= 0;\n    }); // in case all samples have negative PTS, and have been filtered out, return now\n\n    if (inputSamples.length === 0) {\n      return;\n    }\n\n    if (!contiguous) {\n      if (!accurateTimeOffset) {\n        // if frag are mot contiguous and if we cant trust time offset, let's use first sample PTS as next audio PTS\n        nextAudioPts = inputSamples[0].pts;\n      } else {\n        // if timeOffset is accurate, let's use it as predicted next audio PTS\n        nextAudioPts = timeOffset * inputTimeScale;\n      }\n    } // If the audio track is missing samples, the frames seem to get \"left-shifted\" within the\n    // resulting mp4 segment, causing sync issues and leaving gaps at the end of the audio segment.\n    // In an effort to prevent this from happening, we inject frames here where there are gaps.\n    // When possible, we inject a silent frame; when that's not possible, we duplicate the last\n    // frame.\n\n\n    if (track.isAAC) {\n      var maxAudioFramesDrift = this.config.maxAudioFramesDrift;\n\n      for (var i = 0, nextPts = nextAudioPts; i < inputSamples.length;) {\n        // First, let's see how far off this frame is from where we expect it to be\n        var sample = inputSamples[i],\n            delta;\n        var pts = sample.pts;\n        delta = pts - nextPts; // If we're overlapping by more than a duration, drop this sample\n\n        if (delta <= -maxAudioFramesDrift * inputSampleDuration) {\n          if (contiguous) {\n            logger[\"logger\"].warn(\"Dropping 1 audio frame @ \" + toMsFromMpegTsClock(nextPts, true) / 1000 + \"s due to \" + toMsFromMpegTsClock(delta, true) + \" ms overlap.\");\n            inputSamples.splice(i, 1); // Don't touch nextPtsNorm or i\n          } else {\n            // When changing qualities we can't trust that audio has been appended up to nextAudioPts\n            // Warn about the overlap but do not drop samples as that can introduce buffer gaps\n            logger[\"logger\"].warn(\"Audio frame @ \" + toMsFromMpegTsClock(pts, true) / 1000 + \"s overlaps nextAudioPts by \" + toMsFromMpegTsClock(delta, true) + \" ms.\");\n            nextPts = pts + inputSampleDuration;\n            i++;\n          }\n        } // eslint-disable-line brace-style\n        // Insert missing frames if:\n        // 1: We're more than maxAudioFramesDrift frame away\n        // 2: Not more than MAX_SILENT_FRAME_DURATION away\n        // 3: currentTime (aka nextPtsNorm) is not 0\n        else if (delta >= maxAudioFramesDrift * inputSampleDuration && delta < MAX_SILENT_FRAME_DURATION_90KHZ && nextPts) {\n            var missing = Math.round(delta / inputSampleDuration);\n            logger[\"logger\"].warn(\"Injecting \" + missing + \" audio frames @ \" + toMsFromMpegTsClock(nextPts, true) / 1000 + \"s due to \" + toMsFromMpegTsClock(delta, true) + \" ms gap.\");\n\n            for (var j = 0; j < missing; j++) {\n              var newStamp = Math.max(nextPts, 0);\n              fillFrame = aac_helper.getSilentFrame(track.manifestCodec || track.codec, track.channelCount);\n\n              if (!fillFrame) {\n                logger[\"logger\"].log('Unable to get silent frame for given audio codec; duplicating last frame instead.');\n                fillFrame = sample.unit.subarray();\n              }\n\n              inputSamples.splice(i, 0, {\n                unit: fillFrame,\n                pts: newStamp,\n                dts: newStamp\n              });\n              nextPts += inputSampleDuration;\n              i++;\n            } // Adjust sample to next expected pts\n\n\n            sample.pts = sample.dts = nextPts;\n            nextPts += inputSampleDuration;\n            i++;\n          } else {\n            // Otherwise, just adjust pts\n            if (Math.abs(delta) > 0.1 * inputSampleDuration) {// logger.log(`Invalid frame delta ${Math.round(delta + inputSampleDuration)} at PTS ${Math.round(pts / 90)} (should be ${Math.round(inputSampleDuration)}).`);\n            }\n\n            sample.pts = sample.dts = nextPts;\n            nextPts += inputSampleDuration;\n            i++;\n          }\n      }\n    } // compute mdat size, as we eventually filtered/added some samples\n\n\n    var nbSamples = inputSamples.length;\n    var mdatSize = 0;\n\n    while (nbSamples--) {\n      mdatSize += inputSamples[nbSamples].unit.byteLength;\n    }\n\n    for (var _j2 = 0, _nbSamples = inputSamples.length; _j2 < _nbSamples; _j2++) {\n      var audioSample = inputSamples[_j2];\n      var unit = audioSample.unit;\n      var _pts = audioSample.pts; // logger.log(`Audio/PTS:${toMsFromMpegTsClock(pts, true)}`);\n      // if not first sample\n\n      if (lastPTS !== undefined && mp4Sample) {\n        mp4Sample.duration = Math.round((_pts - lastPTS) / scaleFactor);\n      } else {\n        var _delta = _pts - nextAudioPts;\n\n        var numMissingFrames = 0; // if fragment are contiguous, detect hole/overlapping between fragments\n        // contiguous fragments are consecutive fragments from same quality level (same level, new SN = old SN + 1)\n\n        if (contiguous && track.isAAC) {\n          // log delta\n          if (_delta) {\n            if (_delta > 0 && _delta < MAX_SILENT_FRAME_DURATION_90KHZ) {\n              // Q: why do we have to round here, shouldn't this always result in an integer if timestamps are correct,\n              // and if not, shouldn't we actually Math.ceil() instead?\n              numMissingFrames = Math.round((_pts - nextAudioPts) / inputSampleDuration);\n              logger[\"logger\"].log(toMsFromMpegTsClock(_delta, true) + \" ms hole between AAC samples detected,filling it\");\n\n              if (numMissingFrames > 0) {\n                fillFrame = aac_helper.getSilentFrame(track.manifestCodec || track.codec, track.channelCount);\n\n                if (!fillFrame) {\n                  fillFrame = unit.subarray();\n                }\n\n                mdatSize += numMissingFrames * fillFrame.length;\n              } // if we have frame overlap, overlapping for more than half a frame duraion\n\n            } else if (_delta < -12) {\n              // drop overlapping audio frames... browser will deal with it\n              logger[\"logger\"].log(\"drop overlapping AAC sample, expected/parsed/delta: \" + toMsFromMpegTsClock(nextAudioPts, true) + \" ms / \" + toMsFromMpegTsClock(_pts, true) + \" ms / \" + toMsFromMpegTsClock(-_delta, true) + \" ms\");\n              mdatSize -= unit.byteLength;\n              continue;\n            } // set PTS/DTS to expected PTS/DTS\n\n\n            _pts = nextAudioPts;\n          }\n        } // remember first PTS of our audioSamples\n\n\n        firstPTS = _pts;\n\n        if (mdatSize > 0) {\n          mdatSize += offset;\n\n          try {\n            mdat = new Uint8Array(mdatSize);\n          } catch (err) {\n            this.observer.trigger(events[\"default\"].ERROR, {\n              type: errors[\"ErrorTypes\"].MUX_ERROR,\n              details: errors[\"ErrorDetails\"].REMUX_ALLOC_ERROR,\n              fatal: false,\n              bytes: mdatSize,\n              reason: \"fail allocating audio mdat \" + mdatSize\n            });\n            return;\n          }\n\n          if (!rawMPEG) {\n            var view = new DataView(mdat.buffer);\n            view.setUint32(0, mdatSize);\n            mdat.set(mp4_generator.types.mdat, 4);\n          }\n        } else {\n          // no audio samples\n          return;\n        }\n\n        for (var _i3 = 0; _i3 < numMissingFrames; _i3++) {\n          fillFrame = aac_helper.getSilentFrame(track.manifestCodec || track.codec, track.channelCount);\n\n          if (!fillFrame) {\n            logger[\"logger\"].log('Unable to get silent frame for given audio codec; duplicating this frame instead.');\n            fillFrame = unit.subarray();\n          }\n\n          mdat.set(fillFrame, offset);\n          offset += fillFrame.byteLength;\n          mp4Sample = {\n            size: fillFrame.byteLength,\n            cts: 0,\n            duration: 1024,\n            flags: {\n              isLeading: 0,\n              isDependedOn: 0,\n              hasRedundancy: 0,\n              degradPrio: 0,\n              dependsOn: 1\n            }\n          };\n          outputSamples.push(mp4Sample);\n        }\n      }\n\n      mdat.set(unit, offset);\n      var unitLen = unit.byteLength;\n      offset += unitLen; // console.log('PTS/DTS/initDTS/normPTS/normDTS/relative PTS : ${audioSample.pts}/${audioSample.dts}/${initDTS}/${ptsnorm}/${dtsnorm}/${(audioSample.pts/4294967296).toFixed(3)}');\n\n      mp4Sample = {\n        size: unitLen,\n        cts: 0,\n        duration: 0,\n        flags: {\n          isLeading: 0,\n          isDependedOn: 0,\n          hasRedundancy: 0,\n          degradPrio: 0,\n          dependsOn: 1\n        }\n      };\n      outputSamples.push(mp4Sample);\n      lastPTS = _pts;\n    }\n\n    var lastSampleDuration = 0;\n    nbSamples = outputSamples.length; // set last sample duration as being identical to previous sample\n\n    if (nbSamples >= 2) {\n      lastSampleDuration = outputSamples[nbSamples - 2].duration;\n      mp4Sample.duration = lastSampleDuration;\n    }\n\n    if (nbSamples) {\n      // next audio sample PTS should be equal to last sample PTS + duration\n      this.nextAudioPts = nextAudioPts = lastPTS + scaleFactor * lastSampleDuration; // logger.log('Audio/PTS/PTSend:' + audioSample.pts.toFixed(0) + '/' + this.nextAacDts.toFixed(0));\n\n      track.samples = outputSamples;\n\n      if (rawMPEG) {\n        moof = new Uint8Array();\n      } else {\n        moof = mp4_generator.moof(track.sequenceNumber++, firstPTS / scaleFactor, track);\n      }\n\n      track.samples = [];\n      var start = firstPTS / inputTimeScale;\n      var end = nextAudioPts / inputTimeScale;\n      var audioData = {\n        data1: moof,\n        data2: mdat,\n        startPTS: start,\n        endPTS: end,\n        startDTS: start,\n        endDTS: end,\n        type: 'audio',\n        hasAudio: true,\n        hasVideo: false,\n        nb: nbSamples\n      };\n      this.observer.trigger(events[\"default\"].FRAG_PARSING_DATA, audioData);\n      return audioData;\n    }\n\n    return null;\n  };\n\n  _proto.remuxEmptyAudio = function remuxEmptyAudio(track, timeOffset, contiguous, videoData) {\n    var inputTimeScale = track.inputTimeScale;\n    var mp4timeScale = track.samplerate ? track.samplerate : inputTimeScale;\n    var scaleFactor = inputTimeScale / mp4timeScale;\n    var nextAudioPts = this.nextAudioPts; // sync with video's timestamp\n\n    var startDTS = (nextAudioPts !== undefined ? nextAudioPts : videoData.startDTS * inputTimeScale) + this._initDTS;\n    var endDTS = videoData.endDTS * inputTimeScale + this._initDTS; // one sample's duration value\n\n    var sampleDuration = 1024;\n    var frameDuration = scaleFactor * sampleDuration; // samples count of this segment's duration\n\n    var nbSamples = Math.ceil((endDTS - startDTS) / frameDuration); // silent frame\n\n    var silentFrame = aac_helper.getSilentFrame(track.manifestCodec || track.codec, track.channelCount);\n    logger[\"logger\"].warn('remux empty Audio'); // Can't remux if we can't generate a silent frame...\n\n    if (!silentFrame) {\n      logger[\"logger\"].trace('Unable to remuxEmptyAudio since we were unable to get a silent frame for given audio codec!');\n      return;\n    }\n\n    var samples = [];\n\n    for (var i = 0; i < nbSamples; i++) {\n      var stamp = startDTS + i * frameDuration;\n      samples.push({\n        unit: silentFrame,\n        pts: stamp,\n        dts: stamp\n      });\n    }\n\n    track.samples = samples;\n    this.remuxAudio(track, timeOffset, contiguous);\n  };\n\n  _proto.remuxID3 = function remuxID3(track) {\n    var length = track.samples.length;\n\n    if (!length) {\n      return;\n    }\n\n    var inputTimeScale = track.inputTimeScale;\n    var initPTS = this._initPTS;\n    var initDTS = this._initDTS; // consume samples\n\n    for (var index = 0; index < length; index++) {\n      var sample = track.samples[index]; // setting id3 pts, dts to relative time\n      // using this._initPTS and this._initDTS to calculate relative time\n\n      sample.pts = (sample.pts - initPTS) / inputTimeScale;\n      sample.dts = (sample.dts - initDTS) / inputTimeScale;\n    }\n\n    this.observer.trigger(events[\"default\"].FRAG_PARSING_METADATA, {\n      samples: track.samples\n    });\n    track.samples = [];\n  };\n\n  _proto.remuxText = function remuxText(track) {\n    track.samples.sort(function (a, b) {\n      return a.pts - b.pts;\n    });\n    var length = track.samples.length,\n        sample;\n    var inputTimeScale = track.inputTimeScale;\n    var initPTS = this._initPTS; // consume samples\n\n    if (length) {\n      for (var index = 0; index < length; index++) {\n        sample = track.samples[index]; // setting text pts, dts to relative time\n        // using this._initPTS and this._initDTS to calculate relative time\n\n        sample.pts = (sample.pts - initPTS) / inputTimeScale;\n      }\n\n      this.observer.trigger(events[\"default\"].FRAG_PARSING_USERDATA, {\n        samples: track.samples\n      });\n    }\n\n    track.samples = [];\n  };\n\n  _proto._PTSNormalize = function _PTSNormalize(value, reference) {\n    var offset;\n\n    if (reference === undefined) {\n      return value;\n    }\n\n    if (reference < value) {\n      // - 2^33\n      offset = -8589934592;\n    } else {\n      // + 2^33\n      offset = 8589934592;\n    }\n    /* PTS is 33bit (from 0 to 2^33 -1)\n      if diff between value and reference is bigger than half of the amplitude (2^32) then it means that\n      PTS looping occured. fill the gap */\n\n\n    while (Math.abs(value - reference) > 4294967296) {\n      value += offset;\n    }\n\n    return value;\n  };\n\n  return MP4Remuxer;\n}();\n\n/* harmony default export */ var mp4_remuxer = (mp4_remuxer_MP4Remuxer);\n// CONCATENATED MODULE: ./src/remux/passthrough-remuxer.js\n/**\n * passthrough remuxer\n*/\n\n\nvar passthrough_remuxer_PassThroughRemuxer = /*#__PURE__*/function () {\n  function PassThroughRemuxer(observer) {\n    this.observer = observer;\n  }\n\n  var _proto = PassThroughRemuxer.prototype;\n\n  _proto.destroy = function destroy() {};\n\n  _proto.resetTimeStamp = function resetTimeStamp() {};\n\n  _proto.resetInitSegment = function resetInitSegment() {};\n\n  _proto.remux = function remux(audioTrack, videoTrack, id3Track, textTrack, timeOffset, contiguous, accurateTimeOffset, rawData) {\n    var observer = this.observer;\n    var streamType = '';\n\n    if (audioTrack) {\n      streamType += 'audio';\n    }\n\n    if (videoTrack) {\n      streamType += 'video';\n    }\n\n    observer.trigger(events[\"default\"].FRAG_PARSING_DATA, {\n      data1: rawData,\n      startPTS: timeOffset,\n      startDTS: timeOffset,\n      type: streamType,\n      hasAudio: !!audioTrack,\n      hasVideo: !!videoTrack,\n      nb: 1,\n      dropped: 0\n    }); // notify end of parsing\n\n    observer.trigger(events[\"default\"].FRAG_PARSED);\n  };\n\n  return PassThroughRemuxer;\n}();\n\n/* harmony default export */ var passthrough_remuxer = (passthrough_remuxer_PassThroughRemuxer);\n// CONCATENATED MODULE: ./src/demux/demuxer-inline.js\n/**\n *\n * inline demuxer: probe fragments and instantiate\n * appropriate demuxer depending on content type (TSDemuxer, AACDemuxer, ...)\n *\n */\n\n\n\n\n\n\n\n\n\n\n // see https://stackoverflow.com/a/11237259/589493\n\nvar global = Object(get_self_scope[\"getSelfScope\"])(); // safeguard for code that might run both on worker and main thread\n\nvar now; // performance.now() not available on WebWorker, at least on Safari Desktop\n\ntry {\n  now = global.performance.now.bind(global.performance);\n} catch (err) {\n  logger[\"logger\"].debug('Unable to use Performance API on this environment');\n  now = global.Date.now;\n}\n\nvar demuxer_inline_DemuxerInline = /*#__PURE__*/function () {\n  function DemuxerInline(observer, typeSupported, config, vendor) {\n    this.observer = observer;\n    this.typeSupported = typeSupported;\n    this.config = config;\n    this.vendor = vendor;\n  }\n\n  var _proto = DemuxerInline.prototype;\n\n  _proto.destroy = function destroy() {\n    var demuxer = this.demuxer;\n\n    if (demuxer) {\n      demuxer.destroy();\n    }\n  };\n\n  _proto.push = function push(data, decryptdata, initSegment, audioCodec, videoCodec, timeOffset, discontinuity, trackSwitch, contiguous, duration, accurateTimeOffset, defaultInitPTS) {\n    var _this = this;\n\n    if (data.byteLength > 0 && decryptdata != null && decryptdata.key != null && decryptdata.method === 'AES-128') {\n      var decrypter = this.decrypter;\n\n      if (decrypter == null) {\n        decrypter = this.decrypter = new crypt_decrypter[\"default\"](this.observer, this.config);\n      }\n\n      var startTime = now();\n      decrypter.decrypt(data, decryptdata.key.buffer, decryptdata.iv.buffer, function (decryptedData) {\n        var endTime = now();\n\n        _this.observer.trigger(events[\"default\"].FRAG_DECRYPTED, {\n          stats: {\n            tstart: startTime,\n            tdecrypt: endTime\n          }\n        });\n\n        _this.pushDecrypted(new Uint8Array(decryptedData), decryptdata, new Uint8Array(initSegment), audioCodec, videoCodec, timeOffset, discontinuity, trackSwitch, contiguous, duration, accurateTimeOffset, defaultInitPTS);\n      });\n    } else {\n      this.pushDecrypted(new Uint8Array(data), decryptdata, new Uint8Array(initSegment), audioCodec, videoCodec, timeOffset, discontinuity, trackSwitch, contiguous, duration, accurateTimeOffset, defaultInitPTS);\n    }\n  };\n\n  _proto.pushDecrypted = function pushDecrypted(data, decryptdata, initSegment, audioCodec, videoCodec, timeOffset, discontinuity, trackSwitch, contiguous, duration, accurateTimeOffset, defaultInitPTS) {\n    var demuxer = this.demuxer;\n\n    if (!demuxer || // in case of continuity change, or track switch\n    // we might switch from content type (AAC container to TS container, or TS to fmp4 for example)\n    // so let's check that current demuxer is still valid\n    (discontinuity || trackSwitch) && !this.probe(data)) {\n      var observer = this.observer;\n      var typeSupported = this.typeSupported;\n      var config = this.config; // probing order is TS/MP4/AAC/MP3\n\n      var muxConfig = [{\n        demux: tsdemuxer,\n        remux: mp4_remuxer\n      }, {\n        demux: mp4demuxer[\"default\"],\n        remux: passthrough_remuxer\n      }, {\n        demux: aacdemuxer,\n        remux: mp4_remuxer\n      }, {\n        demux: mp3demuxer,\n        remux: mp4_remuxer\n      }]; // probe for content type\n\n      for (var i = 0, len = muxConfig.length; i < len; i++) {\n        var mux = muxConfig[i];\n        var probe = mux.demux.probe;\n\n        if (probe(data)) {\n          var _remuxer = this.remuxer = new mux.remux(observer, config, typeSupported, this.vendor);\n\n          demuxer = new mux.demux(observer, _remuxer, config, typeSupported);\n          this.probe = probe;\n          break;\n        }\n      }\n\n      if (!demuxer) {\n        observer.trigger(events[\"default\"].ERROR, {\n          type: errors[\"ErrorTypes\"].MEDIA_ERROR,\n          details: errors[\"ErrorDetails\"].FRAG_PARSING_ERROR,\n          fatal: true,\n          reason: 'no demux matching with content found'\n        });\n        return;\n      }\n\n      this.demuxer = demuxer;\n    }\n\n    var remuxer = this.remuxer;\n\n    if (discontinuity || trackSwitch) {\n      demuxer.resetInitSegment(initSegment, audioCodec, videoCodec, duration);\n      remuxer.resetInitSegment();\n    }\n\n    if (discontinuity) {\n      demuxer.resetTimeStamp(defaultInitPTS);\n      remuxer.resetTimeStamp(defaultInitPTS);\n    }\n\n    if (typeof demuxer.setDecryptData === 'function') {\n      demuxer.setDecryptData(decryptdata);\n    }\n\n    demuxer.append(data, timeOffset, contiguous, accurateTimeOffset);\n  };\n\n  return DemuxerInline;\n}();\n\n/* harmony default export */ var demuxer_inline = __webpack_exports__[\"default\"] = (demuxer_inline_DemuxerInline);\n\n/***/ }),\n\n/***/ \"./src/demux/demuxer-worker.js\":\n/*!*************************************!*\\\n  !*** ./src/demux/demuxer-worker.js ***!\n  \\*************************************/\n/*! exports provided: default */\n/*! ModuleConcatenation bailout: Module is referenced from these modules with unsupported syntax: ./src/demux/demuxer.js (referenced with require.resolve) */\n/***/ (function(module, __webpack_exports__, __webpack_require__) {\n\n\"use strict\";\n__webpack_require__.r(__webpack_exports__);\n/* harmony import */ var _demux_demuxer_inline__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ../demux/demuxer-inline */ \"./src/demux/demuxer-inline.js\");\n/* harmony import */ var _events__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ../events */ \"./src/events.js\");\n/* harmony import */ var _utils_logger__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! ../utils/logger */ \"./src/utils/logger.js\");\n/* harmony import */ var eventemitter3__WEBPACK_IMPORTED_MODULE_3__ = __webpack_require__(/*! eventemitter3 */ \"./node_modules/eventemitter3/index.js\");\n/* harmony import */ var eventemitter3__WEBPACK_IMPORTED_MODULE_3___default = /*#__PURE__*/__webpack_require__.n(eventemitter3__WEBPACK_IMPORTED_MODULE_3__);\n/* demuxer web worker.\n *  - listen to worker message, and trigger DemuxerInline upon reception of Fragments.\n *  - provides MP4 Boxes back to main thread using [transferable objects](https://developers.google.com/web/updates/2011/12/Transferable-Objects-Lightning-Fast) in order to minimize message passing overhead.\n */\n\n\n\n\n\nvar DemuxerWorker = function DemuxerWorker(self) {\n  // observer setup\n  var observer = new eventemitter3__WEBPACK_IMPORTED_MODULE_3__[\"EventEmitter\"]();\n\n  observer.trigger = function trigger(event) {\n    for (var _len = arguments.length, data = new Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) {\n      data[_key - 1] = arguments[_key];\n    }\n\n    observer.emit.apply(observer, [event, event].concat(data));\n  };\n\n  observer.off = function off(event) {\n    for (var _len2 = arguments.length, data = new Array(_len2 > 1 ? _len2 - 1 : 0), _key2 = 1; _key2 < _len2; _key2++) {\n      data[_key2 - 1] = arguments[_key2];\n    }\n\n    observer.removeListener.apply(observer, [event].concat(data));\n  };\n\n  var forwardMessage = function forwardMessage(ev, data) {\n    self.postMessage({\n      event: ev,\n      data: data\n    });\n  };\n\n  self.addEventListener('message', function (ev) {\n    var data = ev.data; // console.log('demuxer cmd:' + data.cmd);\n\n    switch (data.cmd) {\n      case 'init':\n        var config = JSON.parse(data.config);\n        self.demuxer = new _demux_demuxer_inline__WEBPACK_IMPORTED_MODULE_0__[\"default\"](observer, data.typeSupported, config, data.vendor);\n        Object(_utils_logger__WEBPACK_IMPORTED_MODULE_2__[\"enableLogs\"])(config.debug); // signal end of worker init\n\n        forwardMessage('init', null);\n        break;\n\n      case 'demux':\n        self.demuxer.push(data.data, data.decryptdata, data.initSegment, data.audioCodec, data.videoCodec, data.timeOffset, data.discontinuity, data.trackSwitch, data.contiguous, data.duration, data.accurateTimeOffset, data.defaultInitPTS);\n        break;\n\n      default:\n        break;\n    }\n  }); // forward events to main thread\n\n  observer.on(_events__WEBPACK_IMPORTED_MODULE_1__[\"default\"].FRAG_DECRYPTED, forwardMessage);\n  observer.on(_events__WEBPACK_IMPORTED_MODULE_1__[\"default\"].FRAG_PARSING_INIT_SEGMENT, forwardMessage);\n  observer.on(_events__WEBPACK_IMPORTED_MODULE_1__[\"default\"].FRAG_PARSED, forwardMessage);\n  observer.on(_events__WEBPACK_IMPORTED_MODULE_1__[\"default\"].ERROR, forwardMessage);\n  observer.on(_events__WEBPACK_IMPORTED_MODULE_1__[\"default\"].FRAG_PARSING_METADATA, forwardMessage);\n  observer.on(_events__WEBPACK_IMPORTED_MODULE_1__[\"default\"].FRAG_PARSING_USERDATA, forwardMessage);\n  observer.on(_events__WEBPACK_IMPORTED_MODULE_1__[\"default\"].INIT_PTS_FOUND, forwardMessage); // special case for FRAG_PARSING_DATA: pass data1/data2 as transferable object (no copy)\n\n  observer.on(_events__WEBPACK_IMPORTED_MODULE_1__[\"default\"].FRAG_PARSING_DATA, function (ev, data) {\n    var transferable = [];\n    var message = {\n      event: ev,\n      data: data\n    };\n\n    if (data.data1) {\n      message.data1 = data.data1.buffer;\n      transferable.push(data.data1.buffer);\n      delete data.data1;\n    }\n\n    if (data.data2) {\n      message.data2 = data.data2.buffer;\n      transferable.push(data.data2.buffer);\n      delete data.data2;\n    }\n\n    self.postMessage(message, transferable);\n  });\n};\n\n/* harmony default export */ __webpack_exports__[\"default\"] = (DemuxerWorker);\n\n/***/ }),\n\n/***/ \"./src/demux/id3.js\":\n/*!**************************!*\\\n  !*** ./src/demux/id3.js ***!\n  \\**************************/\n/*! exports provided: default, utf8ArrayToStr */\n/***/ (function(module, __webpack_exports__, __webpack_require__) {\n\n\"use strict\";\n__webpack_require__.r(__webpack_exports__);\n/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, \"utf8ArrayToStr\", function() { return utf8ArrayToStr; });\n/* harmony import */ var _utils_get_self_scope__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ../utils/get-self-scope */ \"./src/utils/get-self-scope.js\");\n\n/**\n * ID3 parser\n */\n\nvar ID3 = /*#__PURE__*/function () {\n  function ID3() {}\n\n  /**\n   * Returns true if an ID3 header can be found at offset in data\n   * @param {Uint8Array} data - The data to search in\n   * @param {number} offset - The offset at which to start searching\n   * @return {boolean} - True if an ID3 header is found\n   */\n  ID3.isHeader = function isHeader(data, offset) {\n    /*\n    * http://id3.org/id3v2.3.0\n    * [0]     = 'I'\n    * [1]     = 'D'\n    * [2]     = '3'\n    * [3,4]   = {Version}\n    * [5]     = {Flags}\n    * [6-9]   = {ID3 Size}\n    *\n    * An ID3v2 tag can be detected with the following pattern:\n    *  $49 44 33 yy yy xx zz zz zz zz\n    * Where yy is less than $FF, xx is the 'flags' byte and zz is less than $80\n    */\n    if (offset + 10 <= data.length) {\n      // look for 'ID3' identifier\n      if (data[offset] === 0x49 && data[offset + 1] === 0x44 && data[offset + 2] === 0x33) {\n        // check version is within range\n        if (data[offset + 3] < 0xFF && data[offset + 4] < 0xFF) {\n          // check size is within range\n          if (data[offset + 6] < 0x80 && data[offset + 7] < 0x80 && data[offset + 8] < 0x80 && data[offset + 9] < 0x80) {\n            return true;\n          }\n        }\n      }\n    }\n\n    return false;\n  }\n  /**\n   * Returns true if an ID3 footer can be found at offset in data\n   * @param {Uint8Array} data - The data to search in\n   * @param {number} offset - The offset at which to start searching\n   * @return {boolean} - True if an ID3 footer is found\n   */\n  ;\n\n  ID3.isFooter = function isFooter(data, offset) {\n    /*\n    * The footer is a copy of the header, but with a different identifier\n    */\n    if (offset + 10 <= data.length) {\n      // look for '3DI' identifier\n      if (data[offset] === 0x33 && data[offset + 1] === 0x44 && data[offset + 2] === 0x49) {\n        // check version is within range\n        if (data[offset + 3] < 0xFF && data[offset + 4] < 0xFF) {\n          // check size is within range\n          if (data[offset + 6] < 0x80 && data[offset + 7] < 0x80 && data[offset + 8] < 0x80 && data[offset + 9] < 0x80) {\n            return true;\n          }\n        }\n      }\n    }\n\n    return false;\n  }\n  /**\n   * Returns any adjacent ID3 tags found in data starting at offset, as one block of data\n   * @param {Uint8Array} data - The data to search in\n   * @param {number} offset - The offset at which to start searching\n   * @return {Uint8Array} - The block of data containing any ID3 tags found\n   */\n  ;\n\n  ID3.getID3Data = function getID3Data(data, offset) {\n    var front = offset;\n    var length = 0;\n\n    while (ID3.isHeader(data, offset)) {\n      // ID3 header is 10 bytes\n      length += 10;\n\n      var size = ID3._readSize(data, offset + 6);\n\n      length += size;\n\n      if (ID3.isFooter(data, offset + 10)) {\n        // ID3 footer is 10 bytes\n        length += 10;\n      }\n\n      offset += length;\n    }\n\n    if (length > 0) {\n      return data.subarray(front, front + length);\n    }\n\n    return undefined;\n  };\n\n  ID3._readSize = function _readSize(data, offset) {\n    var size = 0;\n    size = (data[offset] & 0x7f) << 21;\n    size |= (data[offset + 1] & 0x7f) << 14;\n    size |= (data[offset + 2] & 0x7f) << 7;\n    size |= data[offset + 3] & 0x7f;\n    return size;\n  }\n  /**\n   * Searches for the Elementary Stream timestamp found in the ID3 data chunk\n   * @param {Uint8Array} data - Block of data containing one or more ID3 tags\n   * @return {number} - The timestamp\n   */\n  ;\n\n  ID3.getTimeStamp = function getTimeStamp(data) {\n    var frames = ID3.getID3Frames(data);\n\n    for (var i = 0; i < frames.length; i++) {\n      var frame = frames[i];\n\n      if (ID3.isTimeStampFrame(frame)) {\n        return ID3._readTimeStamp(frame);\n      }\n    }\n\n    return undefined;\n  }\n  /**\n   * Returns true if the ID3 frame is an Elementary Stream timestamp frame\n   * @param {ID3 frame} frame\n   */\n  ;\n\n  ID3.isTimeStampFrame = function isTimeStampFrame(frame) {\n    return frame && frame.key === 'PRIV' && frame.info === 'com.apple.streaming.transportStreamTimestamp';\n  };\n\n  ID3._getFrameData = function _getFrameData(data) {\n    /*\n    Frame ID       $xx xx xx xx (four characters)\n    Size           $xx xx xx xx\n    Flags          $xx xx\n    */\n    var type = String.fromCharCode(data[0], data[1], data[2], data[3]);\n\n    var size = ID3._readSize(data, 4); // skip frame id, size, and flags\n\n\n    var offset = 10;\n    return {\n      type: type,\n      size: size,\n      data: data.subarray(offset, offset + size)\n    };\n  }\n  /**\n   * Returns an array of ID3 frames found in all the ID3 tags in the id3Data\n   * @param {Uint8Array} id3Data - The ID3 data containing one or more ID3 tags\n   * @return {ID3 frame[]} - Array of ID3 frame objects\n   */\n  ;\n\n  ID3.getID3Frames = function getID3Frames(id3Data) {\n    var offset = 0;\n    var frames = [];\n\n    while (ID3.isHeader(id3Data, offset)) {\n      var size = ID3._readSize(id3Data, offset + 6); // skip past ID3 header\n\n\n      offset += 10;\n      var end = offset + size; // loop through frames in the ID3 tag\n\n      while (offset + 8 < end) {\n        var frameData = ID3._getFrameData(id3Data.subarray(offset));\n\n        var frame = ID3._decodeFrame(frameData);\n\n        if (frame) {\n          frames.push(frame);\n        } // skip frame header and frame data\n\n\n        offset += frameData.size + 10;\n      }\n\n      if (ID3.isFooter(id3Data, offset)) {\n        offset += 10;\n      }\n    }\n\n    return frames;\n  };\n\n  ID3._decodeFrame = function _decodeFrame(frame) {\n    if (frame.type === 'PRIV') {\n      return ID3._decodePrivFrame(frame);\n    } else if (frame.type[0] === 'T') {\n      return ID3._decodeTextFrame(frame);\n    } else if (frame.type[0] === 'W') {\n      return ID3._decodeURLFrame(frame);\n    }\n\n    return undefined;\n  };\n\n  ID3._readTimeStamp = function _readTimeStamp(timeStampFrame) {\n    if (timeStampFrame.data.byteLength === 8) {\n      var data = new Uint8Array(timeStampFrame.data); // timestamp is 33 bit expressed as a big-endian eight-octet number,\n      // with the upper 31 bits set to zero.\n\n      var pts33Bit = data[3] & 0x1;\n      var timestamp = (data[4] << 23) + (data[5] << 15) + (data[6] << 7) + data[7];\n      timestamp /= 45;\n\n      if (pts33Bit) {\n        timestamp += 47721858.84;\n      } // 2^32 / 90\n\n\n      return Math.round(timestamp);\n    }\n\n    return undefined;\n  };\n\n  ID3._decodePrivFrame = function _decodePrivFrame(frame) {\n    /*\n    Format: <text string>\\0<binary data>\n    */\n    if (frame.size < 2) {\n      return undefined;\n    }\n\n    var owner = ID3._utf8ArrayToStr(frame.data, true);\n\n    var privateData = new Uint8Array(frame.data.subarray(owner.length + 1));\n    return {\n      key: frame.type,\n      info: owner,\n      data: privateData.buffer\n    };\n  };\n\n  ID3._decodeTextFrame = function _decodeTextFrame(frame) {\n    if (frame.size < 2) {\n      return undefined;\n    }\n\n    if (frame.type === 'TXXX') {\n      /*\n      Format:\n      [0]   = {Text Encoding}\n      [1-?] = {Description}\\0{Value}\n      */\n      var index = 1;\n\n      var description = ID3._utf8ArrayToStr(frame.data.subarray(index), true);\n\n      index += description.length + 1;\n\n      var value = ID3._utf8ArrayToStr(frame.data.subarray(index));\n\n      return {\n        key: frame.type,\n        info: description,\n        data: value\n      };\n    } else {\n      /*\n      Format:\n      [0]   = {Text Encoding}\n      [1-?] = {Value}\n      */\n      var text = ID3._utf8ArrayToStr(frame.data.subarray(1));\n\n      return {\n        key: frame.type,\n        data: text\n      };\n    }\n  };\n\n  ID3._decodeURLFrame = function _decodeURLFrame(frame) {\n    if (frame.type === 'WXXX') {\n      /*\n      Format:\n      [0]   = {Text Encoding}\n      [1-?] = {Description}\\0{URL}\n      */\n      if (frame.size < 2) {\n        return undefined;\n      }\n\n      var index = 1;\n\n      var description = ID3._utf8ArrayToStr(frame.data.subarray(index));\n\n      index += description.length + 1;\n\n      var value = ID3._utf8ArrayToStr(frame.data.subarray(index));\n\n      return {\n        key: frame.type,\n        info: description,\n        data: value\n      };\n    } else {\n      /*\n      Format:\n      [0-?] = {URL}\n      */\n      var url = ID3._utf8ArrayToStr(frame.data);\n\n      return {\n        key: frame.type,\n        data: url\n      };\n    }\n  } // http://stackoverflow.com/questions/8936984/uint8array-to-string-in-javascript/22373197\n  // http://www.onicos.com/staff/iz/amuse/javascript/expert/utf.txt\n\n  /* utf.js - UTF-8 <=> UTF-16 convertion\n   *\n   * Copyright (C) 1999 Masanao Izumo <iz@onicos.co.jp>\n   * Version: 1.0\n   * LastModified: Dec 25 1999\n   * This library is free.  You can redistribute it and/or modify it.\n   */\n  ;\n\n  ID3._utf8ArrayToStr = function _utf8ArrayToStr(array, exitOnNull) {\n    if (exitOnNull === void 0) {\n      exitOnNull = false;\n    }\n\n    var decoder = getTextDecoder();\n\n    if (decoder) {\n      var decoded = decoder.decode(array);\n\n      if (exitOnNull) {\n        // grab up to the first null\n        var idx = decoded.indexOf('\\0');\n        return idx !== -1 ? decoded.substring(0, idx) : decoded;\n      } // remove any null characters\n\n\n      return decoded.replace(/\\0/g, '');\n    }\n\n    var len = array.length;\n    var c;\n    var char2;\n    var char3;\n    var out = '';\n    var i = 0;\n\n    while (i < len) {\n      c = array[i++];\n\n      if (c === 0x00 && exitOnNull) {\n        return out;\n      } else if (c === 0x00 || c === 0x03) {\n        // If the character is 3 (END_OF_TEXT) or 0 (NULL) then skip it\n        continue;\n      }\n\n      switch (c >> 4) {\n        case 0:\n        case 1:\n        case 2:\n        case 3:\n        case 4:\n        case 5:\n        case 6:\n        case 7:\n          // 0xxxxxxx\n          out += String.fromCharCode(c);\n          break;\n\n        case 12:\n        case 13:\n          // 110x xxxx   10xx xxxx\n          char2 = array[i++];\n          out += String.fromCharCode((c & 0x1F) << 6 | char2 & 0x3F);\n          break;\n\n        case 14:\n          // 1110 xxxx  10xx xxxx  10xx xxxx\n          char2 = array[i++];\n          char3 = array[i++];\n          out += String.fromCharCode((c & 0x0F) << 12 | (char2 & 0x3F) << 6 | (char3 & 0x3F) << 0);\n          break;\n\n        default:\n      }\n    }\n\n    return out;\n  };\n\n  return ID3;\n}();\n\nvar decoder;\n\nfunction getTextDecoder() {\n  var global = Object(_utils_get_self_scope__WEBPACK_IMPORTED_MODULE_0__[\"getSelfScope\"])(); // safeguard for code that might run both on worker and main thread\n\n  if (!decoder && typeof global.TextDecoder !== 'undefined') {\n    decoder = new global.TextDecoder('utf-8');\n  }\n\n  return decoder;\n}\n\nvar utf8ArrayToStr = ID3._utf8ArrayToStr;\n/* harmony default export */ __webpack_exports__[\"default\"] = (ID3);\n\n\n/***/ }),\n\n/***/ \"./src/demux/mp4demuxer.js\":\n/*!*********************************!*\\\n  !*** ./src/demux/mp4demuxer.js ***!\n  \\*********************************/\n/*! exports provided: default */\n/***/ (function(module, __webpack_exports__, __webpack_require__) {\n\n\"use strict\";\n__webpack_require__.r(__webpack_exports__);\n/* harmony import */ var _utils_logger__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ../utils/logger */ \"./src/utils/logger.js\");\n/* harmony import */ var _events__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ../events */ \"./src/events.js\");\n/**\n * MP4 demuxer\n */\n\n\nvar UINT32_MAX = Math.pow(2, 32) - 1;\n\nvar MP4Demuxer = /*#__PURE__*/function () {\n  function MP4Demuxer(observer, remuxer) {\n    this.observer = observer;\n    this.remuxer = remuxer;\n  }\n\n  var _proto = MP4Demuxer.prototype;\n\n  _proto.resetTimeStamp = function resetTimeStamp(initPTS) {\n    this.initPTS = initPTS;\n  };\n\n  _proto.resetInitSegment = function resetInitSegment(initSegment, audioCodec, videoCodec, duration) {\n    // jshint unused:false\n    if (initSegment && initSegment.byteLength) {\n      var initData = this.initData = MP4Demuxer.parseInitSegment(initSegment); // default audio codec if nothing specified\n      // TODO : extract that from initsegment\n\n      if (audioCodec == null) {\n        audioCodec = 'mp4a.40.5';\n      }\n\n      if (videoCodec == null) {\n        videoCodec = 'avc1.42e01e';\n      }\n\n      var tracks = {};\n\n      if (initData.audio && initData.video) {\n        tracks.audiovideo = {\n          container: 'video/mp4',\n          codec: audioCodec + ',' + videoCodec,\n          initSegment: duration ? initSegment : null\n        };\n      } else {\n        if (initData.audio) {\n          tracks.audio = {\n            container: 'audio/mp4',\n            codec: audioCodec,\n            initSegment: duration ? initSegment : null\n          };\n        }\n\n        if (initData.video) {\n          tracks.video = {\n            container: 'video/mp4',\n            codec: videoCodec,\n            initSegment: duration ? initSegment : null\n          };\n        }\n      }\n\n      this.observer.trigger(_events__WEBPACK_IMPORTED_MODULE_1__[\"default\"].FRAG_PARSING_INIT_SEGMENT, {\n        tracks: tracks\n      });\n    } else {\n      if (audioCodec) {\n        this.audioCodec = audioCodec;\n      }\n\n      if (videoCodec) {\n        this.videoCodec = videoCodec;\n      }\n    }\n  };\n\n  MP4Demuxer.probe = function probe(data) {\n    // ensure we find a moof box in the first 16 kB\n    return MP4Demuxer.findBox({\n      data: data,\n      start: 0,\n      end: Math.min(data.length, 16384)\n    }, ['moof']).length > 0;\n  };\n\n  MP4Demuxer.bin2str = function bin2str(buffer) {\n    return String.fromCharCode.apply(null, buffer);\n  };\n\n  MP4Demuxer.readUint16 = function readUint16(buffer, offset) {\n    if (buffer.data) {\n      offset += buffer.start;\n      buffer = buffer.data;\n    }\n\n    var val = buffer[offset] << 8 | buffer[offset + 1];\n    return val < 0 ? 65536 + val : val;\n  };\n\n  MP4Demuxer.readUint32 = function readUint32(buffer, offset) {\n    if (buffer.data) {\n      offset += buffer.start;\n      buffer = buffer.data;\n    }\n\n    var val = buffer[offset] << 24 | buffer[offset + 1] << 16 | buffer[offset + 2] << 8 | buffer[offset + 3];\n    return val < 0 ? 4294967296 + val : val;\n  };\n\n  MP4Demuxer.writeUint32 = function writeUint32(buffer, offset, value) {\n    if (buffer.data) {\n      offset += buffer.start;\n      buffer = buffer.data;\n    }\n\n    buffer[offset] = value >> 24;\n    buffer[offset + 1] = value >> 16 & 0xff;\n    buffer[offset + 2] = value >> 8 & 0xff;\n    buffer[offset + 3] = value & 0xff;\n  } // Find the data for a box specified by its path\n  ;\n\n  MP4Demuxer.findBox = function findBox(data, path) {\n    var results = [],\n        i,\n        size,\n        type,\n        end,\n        subresults,\n        start,\n        endbox;\n\n    if (data.data) {\n      start = data.start;\n      end = data.end;\n      data = data.data;\n    } else {\n      start = 0;\n      end = data.byteLength;\n    }\n\n    if (!path.length) {\n      // short-circuit the search for empty paths\n      return null;\n    }\n\n    for (i = start; i < end;) {\n      size = MP4Demuxer.readUint32(data, i);\n      type = MP4Demuxer.bin2str(data.subarray(i + 4, i + 8));\n      endbox = size > 1 ? i + size : end;\n\n      if (type === path[0]) {\n        if (path.length === 1) {\n          // this is the end of the path and we've found the box we were\n          // looking for\n          results.push({\n            data: data,\n            start: i + 8,\n            end: endbox\n          });\n        } else {\n          // recursively search for the next box along the path\n          subresults = MP4Demuxer.findBox({\n            data: data,\n            start: i + 8,\n            end: endbox\n          }, path.slice(1));\n\n          if (subresults.length) {\n            results = results.concat(subresults);\n          }\n        }\n      }\n\n      i = endbox;\n    } // we've finished searching all of data\n\n\n    return results;\n  };\n\n  MP4Demuxer.parseSegmentIndex = function parseSegmentIndex(initSegment) {\n    var moov = MP4Demuxer.findBox(initSegment, ['moov'])[0];\n    var moovEndOffset = moov ? moov.end : null; // we need this in case we need to chop of garbage of the end of current data\n\n    var index = 0;\n    var sidx = MP4Demuxer.findBox(initSegment, ['sidx']);\n    var references;\n\n    if (!sidx || !sidx[0]) {\n      return null;\n    }\n\n    references = [];\n    sidx = sidx[0];\n    var version = sidx.data[0]; // set initial offset, we skip the reference ID (not needed)\n\n    index = version === 0 ? 8 : 16;\n    var timescale = MP4Demuxer.readUint32(sidx, index);\n    index += 4; // TODO: parse earliestPresentationTime and firstOffset\n    // usually zero in our case\n\n    var earliestPresentationTime = 0;\n    var firstOffset = 0;\n\n    if (version === 0) {\n      index += 8;\n    } else {\n      index += 16;\n    } // skip reserved\n\n\n    index += 2;\n    var startByte = sidx.end + firstOffset;\n    var referencesCount = MP4Demuxer.readUint16(sidx, index);\n    index += 2;\n\n    for (var i = 0; i < referencesCount; i++) {\n      var referenceIndex = index;\n      var referenceInfo = MP4Demuxer.readUint32(sidx, referenceIndex);\n      referenceIndex += 4;\n      var referenceSize = referenceInfo & 0x7FFFFFFF;\n      var referenceType = (referenceInfo & 0x80000000) >>> 31;\n\n      if (referenceType === 1) {\n        console.warn('SIDX has hierarchical references (not supported)');\n        return;\n      }\n\n      var subsegmentDuration = MP4Demuxer.readUint32(sidx, referenceIndex);\n      referenceIndex += 4;\n      references.push({\n        referenceSize: referenceSize,\n        subsegmentDuration: subsegmentDuration,\n        // unscaled\n        info: {\n          duration: subsegmentDuration / timescale,\n          start: startByte,\n          end: startByte + referenceSize - 1\n        }\n      });\n      startByte += referenceSize; // Skipping 1 bit for |startsWithSap|, 3 bits for |sapType|, and 28 bits\n      // for |sapDelta|.\n\n      referenceIndex += 4; // skip to next ref\n\n      index = referenceIndex;\n    }\n\n    return {\n      earliestPresentationTime: earliestPresentationTime,\n      timescale: timescale,\n      version: version,\n      referencesCount: referencesCount,\n      references: references,\n      moovEndOffset: moovEndOffset\n    };\n  }\n  /**\n   * Parses an MP4 initialization segment and extracts stream type and\n   * timescale values for any declared tracks. Timescale values indicate the\n   * number of clock ticks per second to assume for time-based values\n   * elsewhere in the MP4.\n   *\n   * To determine the start time of an MP4, you need two pieces of\n   * information: the timescale unit and the earliest base media decode\n   * time. Multiple timescales can be specified within an MP4 but the\n   * base media decode time is always expressed in the timescale from\n   * the media header box for the track:\n   * ```\n   * moov > trak > mdia > mdhd.timescale\n   * moov > trak > mdia > hdlr\n   * ```\n   * @param init {Uint8Array} the bytes of the init segment\n   * @return {object} a hash of track type to timescale values or null if\n   * the init segment is malformed.\n   */\n  ;\n\n  MP4Demuxer.parseInitSegment = function parseInitSegment(initSegment) {\n    var result = [];\n    var traks = MP4Demuxer.findBox(initSegment, ['moov', 'trak']);\n    traks.forEach(function (trak) {\n      var tkhd = MP4Demuxer.findBox(trak, ['tkhd'])[0];\n\n      if (tkhd) {\n        var version = tkhd.data[tkhd.start];\n        var index = version === 0 ? 12 : 20;\n        var trackId = MP4Demuxer.readUint32(tkhd, index);\n        var mdhd = MP4Demuxer.findBox(trak, ['mdia', 'mdhd'])[0];\n\n        if (mdhd) {\n          version = mdhd.data[mdhd.start];\n          index = version === 0 ? 12 : 20;\n          var timescale = MP4Demuxer.readUint32(mdhd, index);\n          var hdlr = MP4Demuxer.findBox(trak, ['mdia', 'hdlr'])[0];\n\n          if (hdlr) {\n            var hdlrType = MP4Demuxer.bin2str(hdlr.data.subarray(hdlr.start + 8, hdlr.start + 12));\n            var type = {\n              'soun': 'audio',\n              'vide': 'video'\n            }[hdlrType];\n\n            if (type) {\n              // extract codec info. TODO : parse codec details to be able to build MIME type\n              var codecBox = MP4Demuxer.findBox(trak, ['mdia', 'minf', 'stbl', 'stsd']);\n\n              if (codecBox.length) {\n                codecBox = codecBox[0];\n                var codecType = MP4Demuxer.bin2str(codecBox.data.subarray(codecBox.start + 12, codecBox.start + 16));\n                _utils_logger__WEBPACK_IMPORTED_MODULE_0__[\"logger\"].log(\"MP4Demuxer:\" + type + \":\" + codecType + \" found\");\n              }\n\n              result[trackId] = {\n                timescale: timescale,\n                type: type\n              };\n              result[type] = {\n                timescale: timescale,\n                id: trackId\n              };\n            }\n          }\n        }\n      }\n    });\n    return result;\n  }\n  /**\n  * Determine the base media decode start time, in seconds, for an MP4\n  * fragment. If multiple fragments are specified, the earliest time is\n  * returned.\n  *\n  * The base media decode time can be parsed from track fragment\n  * metadata:\n  * ```\n  * moof > traf > tfdt.baseMediaDecodeTime\n  * ```\n  * It requires the timescale value from the mdhd to interpret.\n  *\n  * @param timescale {object} a hash of track ids to timescale values.\n  * @return {number} the earliest base media decode start time for the\n  * fragment, in seconds\n  */\n  ;\n\n  MP4Demuxer.getStartDTS = function getStartDTS(initData, fragment) {\n    var trafs, baseTimes, result; // we need info from two childrend of each track fragment box\n\n    trafs = MP4Demuxer.findBox(fragment, ['moof', 'traf']); // determine the start times for each track\n\n    baseTimes = [].concat.apply([], trafs.map(function (traf) {\n      return MP4Demuxer.findBox(traf, ['tfhd']).map(function (tfhd) {\n        var id, scale, baseTime; // get the track id from the tfhd\n\n        id = MP4Demuxer.readUint32(tfhd, 4); // assume a 90kHz clock if no timescale was specified\n\n        scale = initData[id].timescale || 90e3; // get the base media decode time from the tfdt\n\n        baseTime = MP4Demuxer.findBox(traf, ['tfdt']).map(function (tfdt) {\n          var version, result;\n          version = tfdt.data[tfdt.start];\n          result = MP4Demuxer.readUint32(tfdt, 4);\n\n          if (version === 1) {\n            result *= Math.pow(2, 32);\n            result += MP4Demuxer.readUint32(tfdt, 8);\n          }\n\n          return result;\n        })[0]; // convert base time to seconds\n\n        return baseTime / scale;\n      });\n    })); // return the minimum\n\n    result = Math.min.apply(null, baseTimes);\n    return isFinite(result) ? result : 0;\n  };\n\n  MP4Demuxer.offsetStartDTS = function offsetStartDTS(initData, fragment, timeOffset) {\n    MP4Demuxer.findBox(fragment, ['moof', 'traf']).map(function (traf) {\n      return MP4Demuxer.findBox(traf, ['tfhd']).map(function (tfhd) {\n        // get the track id from the tfhd\n        var id = MP4Demuxer.readUint32(tfhd, 4); // assume a 90kHz clock if no timescale was specified\n\n        var timescale = initData[id].timescale || 90e3; // get the base media decode time from the tfdt\n\n        MP4Demuxer.findBox(traf, ['tfdt']).map(function (tfdt) {\n          var version = tfdt.data[tfdt.start];\n          var baseMediaDecodeTime = MP4Demuxer.readUint32(tfdt, 4);\n\n          if (version === 0) {\n            MP4Demuxer.writeUint32(tfdt, 4, baseMediaDecodeTime - timeOffset * timescale);\n          } else {\n            baseMediaDecodeTime *= Math.pow(2, 32);\n            baseMediaDecodeTime += MP4Demuxer.readUint32(tfdt, 8);\n            baseMediaDecodeTime -= timeOffset * timescale;\n            baseMediaDecodeTime = Math.max(baseMediaDecodeTime, 0);\n            var upper = Math.floor(baseMediaDecodeTime / (UINT32_MAX + 1));\n            var lower = Math.floor(baseMediaDecodeTime % (UINT32_MAX + 1));\n            MP4Demuxer.writeUint32(tfdt, 4, upper);\n            MP4Demuxer.writeUint32(tfdt, 8, lower);\n          }\n        });\n      });\n    });\n  } // feed incoming data to the front of the parsing pipeline\n  ;\n\n  _proto.append = function append(data, timeOffset, contiguous, accurateTimeOffset) {\n    var initData = this.initData;\n\n    if (!initData) {\n      this.resetInitSegment(data, this.audioCodec, this.videoCodec, false);\n      initData = this.initData;\n    }\n\n    var startDTS,\n        initPTS = this.initPTS;\n\n    if (initPTS === undefined) {\n      var _startDTS = MP4Demuxer.getStartDTS(initData, data);\n\n      this.initPTS = initPTS = _startDTS - timeOffset;\n      this.observer.trigger(_events__WEBPACK_IMPORTED_MODULE_1__[\"default\"].INIT_PTS_FOUND, {\n        initPTS: initPTS\n      });\n    }\n\n    MP4Demuxer.offsetStartDTS(initData, data, initPTS);\n    startDTS = MP4Demuxer.getStartDTS(initData, data);\n    this.remuxer.remux(initData.audio, initData.video, null, null, startDTS, contiguous, accurateTimeOffset, data);\n  };\n\n  _proto.destroy = function destroy() {};\n\n  return MP4Demuxer;\n}();\n\n/* harmony default export */ __webpack_exports__[\"default\"] = (MP4Demuxer);\n\n/***/ }),\n\n/***/ \"./src/errors.ts\":\n/*!***********************!*\\\n  !*** ./src/errors.ts ***!\n  \\***********************/\n/*! exports provided: ErrorTypes, ErrorDetails */\n/***/ (function(module, __webpack_exports__, __webpack_require__) {\n\n\"use strict\";\n__webpack_require__.r(__webpack_exports__);\n/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, \"ErrorTypes\", function() { return ErrorTypes; });\n/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, \"ErrorDetails\", function() { return ErrorDetails; });\nvar ErrorTypes;\n/**\n * @enum {ErrorDetails}\n * @typedef {string} ErrorDetail\n */\n\n(function (ErrorTypes) {\n  ErrorTypes[\"NETWORK_ERROR\"] = \"networkError\";\n  ErrorTypes[\"MEDIA_ERROR\"] = \"mediaError\";\n  ErrorTypes[\"KEY_SYSTEM_ERROR\"] = \"keySystemError\";\n  ErrorTypes[\"MUX_ERROR\"] = \"muxError\";\n  ErrorTypes[\"OTHER_ERROR\"] = \"otherError\";\n})(ErrorTypes || (ErrorTypes = {}));\n\nvar ErrorDetails;\n\n(function (ErrorDetails) {\n  ErrorDetails[\"KEY_SYSTEM_NO_KEYS\"] = \"keySystemNoKeys\";\n  ErrorDetails[\"KEY_SYSTEM_NO_ACCESS\"] = \"keySystemNoAccess\";\n  ErrorDetails[\"KEY_SYSTEM_NO_SESSION\"] = \"keySystemNoSession\";\n  ErrorDetails[\"KEY_SYSTEM_LICENSE_REQUEST_FAILED\"] = \"keySystemLicenseRequestFailed\";\n  ErrorDetails[\"KEY_SYSTEM_NO_INIT_DATA\"] = \"keySystemNoInitData\";\n  ErrorDetails[\"MANIFEST_LOAD_ERROR\"] = \"manifestLoadError\";\n  ErrorDetails[\"MANIFEST_LOAD_TIMEOUT\"] = \"manifestLoadTimeOut\";\n  ErrorDetails[\"MANIFEST_PARSING_ERROR\"] = \"manifestParsingError\";\n  ErrorDetails[\"MANIFEST_INCOMPATIBLE_CODECS_ERROR\"] = \"manifestIncompatibleCodecsError\";\n  ErrorDetails[\"LEVEL_EMPTY_ERROR\"] = \"levelEmptyError\";\n  ErrorDetails[\"LEVEL_LOAD_ERROR\"] = \"levelLoadError\";\n  ErrorDetails[\"LEVEL_LOAD_TIMEOUT\"] = \"levelLoadTimeOut\";\n  ErrorDetails[\"LEVEL_SWITCH_ERROR\"] = \"levelSwitchError\";\n  ErrorDetails[\"AUDIO_TRACK_LOAD_ERROR\"] = \"audioTrackLoadError\";\n  ErrorDetails[\"AUDIO_TRACK_LOAD_TIMEOUT\"] = \"audioTrackLoadTimeOut\";\n  ErrorDetails[\"FRAG_LOAD_ERROR\"] = \"fragLoadError\";\n  ErrorDetails[\"FRAG_LOAD_TIMEOUT\"] = \"fragLoadTimeOut\";\n  ErrorDetails[\"FRAG_DECRYPT_ERROR\"] = \"fragDecryptError\";\n  ErrorDetails[\"FRAG_PARSING_ERROR\"] = \"fragParsingError\";\n  ErrorDetails[\"REMUX_ALLOC_ERROR\"] = \"remuxAllocError\";\n  ErrorDetails[\"KEY_LOAD_ERROR\"] = \"keyLoadError\";\n  ErrorDetails[\"KEY_LOAD_TIMEOUT\"] = \"keyLoadTimeOut\";\n  ErrorDetails[\"BUFFER_ADD_CODEC_ERROR\"] = \"bufferAddCodecError\";\n  ErrorDetails[\"BUFFER_APPEND_ERROR\"] = \"bufferAppendError\";\n  ErrorDetails[\"BUFFER_APPENDING_ERROR\"] = \"bufferAppendingError\";\n  ErrorDetails[\"BUFFER_STALLED_ERROR\"] = \"bufferStalledError\";\n  ErrorDetails[\"BUFFER_FULL_ERROR\"] = \"bufferFullError\";\n  ErrorDetails[\"BUFFER_SEEK_OVER_HOLE\"] = \"bufferSeekOverHole\";\n  ErrorDetails[\"BUFFER_NUDGE_ON_STALL\"] = \"bufferNudgeOnStall\";\n  ErrorDetails[\"INTERNAL_EXCEPTION\"] = \"internalException\";\n})(ErrorDetails || (ErrorDetails = {}));\n\n/***/ }),\n\n/***/ \"./src/events.js\":\n/*!***********************!*\\\n  !*** ./src/events.js ***!\n  \\***********************/\n/*! exports provided: default */\n/***/ (function(module, __webpack_exports__, __webpack_require__) {\n\n\"use strict\";\n__webpack_require__.r(__webpack_exports__);\n/**\n * @readonly\n * @enum {string}\n */\nvar HlsEvents = {\n  // fired before MediaSource is attaching to media element - data: { media }\n  MEDIA_ATTACHING: 'hlsMediaAttaching',\n  // fired when MediaSource has been succesfully attached to media element - data: { }\n  MEDIA_ATTACHED: 'hlsMediaAttached',\n  // fired before detaching MediaSource from media element - data: { }\n  MEDIA_DETACHING: 'hlsMediaDetaching',\n  // fired when MediaSource has been detached from media element - data: { }\n  MEDIA_DETACHED: 'hlsMediaDetached',\n  // fired when we buffer is going to be reset - data: { }\n  BUFFER_RESET: 'hlsBufferReset',\n  // fired when we know about the codecs that we need buffers for to push into - data: {tracks : { container, codec, levelCodec, initSegment, metadata }}\n  BUFFER_CODECS: 'hlsBufferCodecs',\n  // fired when sourcebuffers have been created - data: { tracks : tracks }\n  BUFFER_CREATED: 'hlsBufferCreated',\n  // fired when we append a segment to the buffer - data: { segment: segment object }\n  BUFFER_APPENDING: 'hlsBufferAppending',\n  // fired when we are done with appending a media segment to the buffer - data : { parent : segment parent that triggered BUFFER_APPENDING, pending : nb of segments waiting for appending for this segment parent}\n  BUFFER_APPENDED: 'hlsBufferAppended',\n  // fired when the stream is finished and we want to notify the media buffer that there will be no more data - data: { }\n  BUFFER_EOS: 'hlsBufferEos',\n  // fired when the media buffer should be flushed - data { startOffset, endOffset }\n  BUFFER_FLUSHING: 'hlsBufferFlushing',\n  // fired when the media buffer has been flushed - data: { }\n  BUFFER_FLUSHED: 'hlsBufferFlushed',\n  // fired to signal that a manifest loading starts - data: { url : manifestURL}\n  MANIFEST_LOADING: 'hlsManifestLoading',\n  // fired after manifest has been loaded - data: { levels : [available quality levels], audioTracks : [ available audio tracks], url : manifestURL, stats : { trequest, tfirst, tload, mtime}}\n  MANIFEST_LOADED: 'hlsManifestLoaded',\n  // fired after manifest has been parsed - data: { levels : [available quality levels], firstLevel : index of first quality level appearing in Manifest}\n  MANIFEST_PARSED: 'hlsManifestParsed',\n  // fired when a level switch is requested - data: { level : id of new level }\n  LEVEL_SWITCHING: 'hlsLevelSwitching',\n  // fired when a level switch is effective - data: { level : id of new level }\n  LEVEL_SWITCHED: 'hlsLevelSwitched',\n  // fired when a level playlist loading starts - data: { url : level URL, level : id of level being loaded}\n  LEVEL_LOADING: 'hlsLevelLoading',\n  // fired when a level playlist loading finishes - data: { details : levelDetails object, level : id of loaded level, stats : { trequest, tfirst, tload, mtime} }\n  LEVEL_LOADED: 'hlsLevelLoaded',\n  // fired when a level's details have been updated based on previous details, after it has been loaded - data: { details : levelDetails object, level : id of updated level }\n  LEVEL_UPDATED: 'hlsLevelUpdated',\n  // fired when a level's PTS information has been updated after parsing a fragment - data: { details : levelDetails object, level : id of updated level, drift: PTS drift observed when parsing last fragment }\n  LEVEL_PTS_UPDATED: 'hlsLevelPtsUpdated',\n  // fired to notify that levels have changed after removing a level - data: { levels : [available quality levels] }\n  LEVELS_UPDATED: 'hlsLevelsUpdated',\n  // fired to notify that audio track lists has been updated - data: { audioTracks : audioTracks }\n  AUDIO_TRACKS_UPDATED: 'hlsAudioTracksUpdated',\n  // fired when an audio track switching is requested - data: { id : audio track id }\n  AUDIO_TRACK_SWITCHING: 'hlsAudioTrackSwitching',\n  // fired when an audio track switch actually occurs - data: { id : audio track id }\n  AUDIO_TRACK_SWITCHED: 'hlsAudioTrackSwitched',\n  // fired when an audio track loading starts - data: { url : audio track URL, id : audio track id }\n  AUDIO_TRACK_LOADING: 'hlsAudioTrackLoading',\n  // fired when an audio track loading finishes - data: { details : levelDetails object, id : audio track id, stats : { trequest, tfirst, tload, mtime } }\n  AUDIO_TRACK_LOADED: 'hlsAudioTrackLoaded',\n  // fired to notify that subtitle track lists has been updated - data: { subtitleTracks : subtitleTracks }\n  SUBTITLE_TRACKS_UPDATED: 'hlsSubtitleTracksUpdated',\n  // fired when an subtitle track switch occurs - data: { id : subtitle track id }\n  SUBTITLE_TRACK_SWITCH: 'hlsSubtitleTrackSwitch',\n  // fired when a subtitle track loading starts - data: { url : subtitle track URL, id : subtitle track id }\n  SUBTITLE_TRACK_LOADING: 'hlsSubtitleTrackLoading',\n  // fired when a subtitle track loading finishes - data: { details : levelDetails object, id : subtitle track id, stats : { trequest, tfirst, tload, mtime } }\n  SUBTITLE_TRACK_LOADED: 'hlsSubtitleTrackLoaded',\n  // fired when a subtitle fragment has been processed - data: { success : boolean, frag : the processed frag }\n  SUBTITLE_FRAG_PROCESSED: 'hlsSubtitleFragProcessed',\n  // fired when a set of VTTCues to be managed externally has been parsed - data: { type: string, track: string, cues: [ VTTCue ] }\n  CUES_PARSED: 'hlsCuesParsed',\n  // fired when a text track to be managed externally is found - data: { tracks: [ { label: string, kind: string, default: boolean } ] }\n  NON_NATIVE_TEXT_TRACKS_FOUND: 'hlsNonNativeTextTracksFound',\n  // fired when the first timestamp is found - data: { id : demuxer id, initPTS: initPTS, frag : fragment object }\n  INIT_PTS_FOUND: 'hlsInitPtsFound',\n  // fired when a fragment loading starts - data: { frag : fragment object }\n  FRAG_LOADING: 'hlsFragLoading',\n  // fired when a fragment loading is progressing - data: { frag : fragment object, { trequest, tfirst, loaded } }\n  FRAG_LOAD_PROGRESS: 'hlsFragLoadProgress',\n  // Identifier for fragment load aborting for emergency switch down - data: { frag : fragment object }\n  FRAG_LOAD_EMERGENCY_ABORTED: 'hlsFragLoadEmergencyAborted',\n  // fired when a fragment loading is completed - data: { frag : fragment object, payload : fragment payload, stats : { trequest, tfirst, tload, length } }\n  FRAG_LOADED: 'hlsFragLoaded',\n  // fired when a fragment has finished decrypting - data: { id : demuxer id, frag: fragment object, payload : fragment payload, stats : { tstart, tdecrypt } }\n  FRAG_DECRYPTED: 'hlsFragDecrypted',\n  // fired when Init Segment has been extracted from fragment - data: { id : demuxer id, frag: fragment object, moov : moov MP4 box, codecs : codecs found while parsing fragment }\n  FRAG_PARSING_INIT_SEGMENT: 'hlsFragParsingInitSegment',\n  // fired when parsing sei text is completed - data: { id : demuxer id, frag: fragment object, samples : [ sei samples pes ] }\n  FRAG_PARSING_USERDATA: 'hlsFragParsingUserdata',\n  // fired when parsing id3 is completed - data: { id : demuxer id, frag: fragment object, samples : [ id3 samples pes ] }\n  FRAG_PARSING_METADATA: 'hlsFragParsingMetadata',\n  // fired when data have been extracted from fragment - data: { id : demuxer id, frag: fragment object, data1 : moof MP4 box or TS fragments, data2 : mdat MP4 box or null}\n  FRAG_PARSING_DATA: 'hlsFragParsingData',\n  // fired when fragment parsing is completed - data: { id : demuxer id, frag: fragment object }\n  FRAG_PARSED: 'hlsFragParsed',\n  // fired when fragment remuxed MP4 boxes have all been appended into SourceBuffer - data: { id : demuxer id, frag : fragment object, stats : { trequest, tfirst, tload, tparsed, tbuffered, length, bwEstimate } }\n  FRAG_BUFFERED: 'hlsFragBuffered',\n  // fired when fragment matching with current media position is changing - data : { id : demuxer id, frag : fragment object }\n  FRAG_CHANGED: 'hlsFragChanged',\n  // Identifier for a FPS drop event - data: { curentDropped, currentDecoded, totalDroppedFrames }\n  FPS_DROP: 'hlsFpsDrop',\n  // triggered when FPS drop triggers auto level capping - data: { level, droppedlevel }\n  FPS_DROP_LEVEL_CAPPING: 'hlsFpsDropLevelCapping',\n  // Identifier for an error event - data: { type : error type, details : error details, fatal : if true, hls.js cannot/will not try to recover, if false, hls.js will try to recover,other error specific data }\n  ERROR: 'hlsError',\n  // fired when hls.js instance starts destroying. Different from MEDIA_DETACHED as one could want to detach and reattach a media to the instance of hls.js to handle mid-rolls for example - data: { }\n  DESTROYING: 'hlsDestroying',\n  // fired when a decrypt key loading starts - data: { frag : fragment object }\n  KEY_LOADING: 'hlsKeyLoading',\n  // fired when a decrypt key loading is completed - data: { frag : fragment object, payload : key payload, stats : { trequest, tfirst, tload, length } }\n  KEY_LOADED: 'hlsKeyLoaded',\n  // fired upon stream controller state transitions - data: { previousState, nextState }\n  STREAM_STATE_TRANSITION: 'hlsStreamStateTransition',\n  // fired when the live back buffer is reached defined by the liveBackBufferLength config option - data : { bufferEnd: number }\n  LIVE_BACK_BUFFER_REACHED: 'hlsLiveBackBufferReached'\n};\n/* harmony default export */ __webpack_exports__[\"default\"] = (HlsEvents);\n\n/***/ }),\n\n/***/ \"./src/hls.ts\":\n/*!*********************************!*\\\n  !*** ./src/hls.ts + 50 modules ***!\n  \\*********************************/\n/*! exports provided: default */\n/*! ModuleConcatenation bailout: Cannot concat with ./src/crypt/decrypter.js because of ./src/demux/demuxer-worker.js */\n/*! ModuleConcatenation bailout: Cannot concat with ./src/demux/demuxer-inline.js because of ./src/demux/demuxer-worker.js */\n/*! ModuleConcatenation bailout: Cannot concat with ./src/demux/id3.js because of ./src/demux/demuxer-worker.js */\n/*! ModuleConcatenation bailout: Cannot concat with ./src/demux/mp4demuxer.js because of ./src/demux/demuxer-worker.js */\n/*! ModuleConcatenation bailout: Cannot concat with ./src/errors.ts because of ./src/demux/demuxer-worker.js */\n/*! ModuleConcatenation bailout: Cannot concat with ./src/events.js because of ./src/demux/demuxer-worker.js */\n/*! ModuleConcatenation bailout: Cannot concat with ./src/polyfills/number-isFinite.js because of ./src/demux/demuxer-worker.js */\n/*! ModuleConcatenation bailout: Cannot concat with ./src/utils/get-self-scope.js because of ./src/demux/demuxer-worker.js */\n/*! ModuleConcatenation bailout: Cannot concat with ./src/utils/logger.js because of ./src/demux/demuxer-worker.js */\n/*! ModuleConcatenation bailout: Cannot concat with ./node_modules/eventemitter3/index.js (<- Module is not an ECMAScript module) */\n/*! ModuleConcatenation bailout: Cannot concat with ./node_modules/url-toolkit/src/url-toolkit.js (<- Module is not an ECMAScript module) */\n/***/ (function(module, __webpack_exports__, __webpack_require__) {\n\n\"use strict\";\n// ESM COMPAT FLAG\n__webpack_require__.r(__webpack_exports__);\n\n// EXPORTS\n__webpack_require__.d(__webpack_exports__, \"default\", function() { return /* binding */ hls_Hls; });\n\n// NAMESPACE OBJECT: ./src/utils/cues.ts\nvar cues_namespaceObject = {};\n__webpack_require__.r(cues_namespaceObject);\n__webpack_require__.d(cues_namespaceObject, \"newCue\", function() { return newCue; });\n\n// EXTERNAL MODULE: ./node_modules/url-toolkit/src/url-toolkit.js\nvar url_toolkit = __webpack_require__(\"./node_modules/url-toolkit/src/url-toolkit.js\");\n\n// EXTERNAL MODULE: ./src/errors.ts\nvar errors = __webpack_require__(\"./src/errors.ts\");\n\n// EXTERNAL MODULE: ./src/polyfills/number-isFinite.js\nvar number_isFinite = __webpack_require__(\"./src/polyfills/number-isFinite.js\");\n\n// EXTERNAL MODULE: ./src/events.js\nvar events = __webpack_require__(\"./src/events.js\");\n\n// EXTERNAL MODULE: ./src/utils/logger.js\nvar logger = __webpack_require__(\"./src/utils/logger.js\");\n\n// CONCATENATED MODULE: ./src/event-handler.ts\n/*\n*\n* All objects in the event handling chain should inherit from this class\n*\n*/\n\n\n\nvar FORBIDDEN_EVENT_NAMES = {\n  'hlsEventGeneric': true,\n  'hlsHandlerDestroying': true,\n  'hlsHandlerDestroyed': true\n};\n\nvar event_handler_EventHandler = /*#__PURE__*/function () {\n  function EventHandler(hls) {\n    this.hls = void 0;\n    this.handledEvents = void 0;\n    this.useGenericHandler = void 0;\n    this.hls = hls;\n    this.onEvent = this.onEvent.bind(this);\n\n    for (var _len = arguments.length, events = new Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) {\n      events[_key - 1] = arguments[_key];\n    }\n\n    this.handledEvents = events;\n    this.useGenericHandler = true;\n    this.registerListeners();\n  }\n\n  var _proto = EventHandler.prototype;\n\n  _proto.destroy = function destroy() {\n    this.onHandlerDestroying();\n    this.unregisterListeners();\n    this.onHandlerDestroyed();\n  };\n\n  _proto.onHandlerDestroying = function onHandlerDestroying() {};\n\n  _proto.onHandlerDestroyed = function onHandlerDestroyed() {};\n\n  _proto.isEventHandler = function isEventHandler() {\n    return typeof this.handledEvents === 'object' && this.handledEvents.length && typeof this.onEvent === 'function';\n  };\n\n  _proto.registerListeners = function registerListeners() {\n    if (this.isEventHandler()) {\n      this.handledEvents.forEach(function (event) {\n        if (FORBIDDEN_EVENT_NAMES[event]) {\n          throw new Error('Forbidden event-name: ' + event);\n        }\n\n        this.hls.on(event, this.onEvent);\n      }, this);\n    }\n  };\n\n  _proto.unregisterListeners = function unregisterListeners() {\n    if (this.isEventHandler()) {\n      this.handledEvents.forEach(function (event) {\n        this.hls.off(event, this.onEvent);\n      }, this);\n    }\n  }\n  /**\n   * arguments: event (string), data (any)\n   */\n  ;\n\n  _proto.onEvent = function onEvent(event, data) {\n    this.onEventGeneric(event, data);\n  };\n\n  _proto.onEventGeneric = function onEventGeneric(event, data) {\n    var eventToFunction = function eventToFunction(event, data) {\n      var funcName = 'on' + event.replace('hls', '');\n\n      if (typeof this[funcName] !== 'function') {\n        throw new Error(\"Event \" + event + \" has no generic handler in this \" + this.constructor.name + \" class (tried \" + funcName + \")\");\n      }\n\n      return this[funcName].bind(this, data);\n    };\n\n    try {\n      eventToFunction.call(this, event, data).call();\n    } catch (err) {\n      logger[\"logger\"].error(\"An internal error happened while handling event \" + event + \". Error message: \\\"\" + err.message + \"\\\". Here is a stacktrace:\", err);\n      this.hls.trigger(events[\"default\"].ERROR, {\n        type: errors[\"ErrorTypes\"].OTHER_ERROR,\n        details: errors[\"ErrorDetails\"].INTERNAL_EXCEPTION,\n        fatal: false,\n        event: event,\n        err: err\n      });\n    }\n  };\n\n  return EventHandler;\n}();\n\n/* harmony default export */ var event_handler = (event_handler_EventHandler);\n// CONCATENATED MODULE: ./src/types/loader.ts\n/**\n * `type` property values for this loaders' context object\n * @enum\n *\n */\nvar PlaylistContextType;\n/**\n * @enum {string}\n */\n\n(function (PlaylistContextType) {\n  PlaylistContextType[\"MANIFEST\"] = \"manifest\";\n  PlaylistContextType[\"LEVEL\"] = \"level\";\n  PlaylistContextType[\"AUDIO_TRACK\"] = \"audioTrack\";\n  PlaylistContextType[\"SUBTITLE_TRACK\"] = \"subtitleTrack\";\n})(PlaylistContextType || (PlaylistContextType = {}));\n\nvar PlaylistLevelType;\n\n(function (PlaylistLevelType) {\n  PlaylistLevelType[\"MAIN\"] = \"main\";\n  PlaylistLevelType[\"AUDIO\"] = \"audio\";\n  PlaylistLevelType[\"SUBTITLE\"] = \"subtitle\";\n})(PlaylistLevelType || (PlaylistLevelType = {}));\n// EXTERNAL MODULE: ./src/demux/mp4demuxer.js\nvar mp4demuxer = __webpack_require__(\"./src/demux/mp4demuxer.js\");\n\n// CONCATENATED MODULE: ./src/loader/level-key.ts\nfunction _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if (\"value\" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }\n\nfunction _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }\n\n\n\nvar level_key_LevelKey = /*#__PURE__*/function () {\n  function LevelKey(baseURI, relativeURI) {\n    this._uri = null;\n    this.baseuri = void 0;\n    this.reluri = void 0;\n    this.method = null;\n    this.key = null;\n    this.iv = null;\n    this.baseuri = baseURI;\n    this.reluri = relativeURI;\n  }\n\n  _createClass(LevelKey, [{\n    key: \"uri\",\n    get: function get() {\n      if (!this._uri && this.reluri) {\n        this._uri = Object(url_toolkit[\"buildAbsoluteURL\"])(this.baseuri, this.reluri, {\n          alwaysNormalize: true\n        });\n      }\n\n      return this._uri;\n    }\n  }]);\n\n  return LevelKey;\n}();\n\n\n// CONCATENATED MODULE: ./src/loader/fragment.ts\n\n\n\nfunction fragment_defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if (\"value\" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }\n\nfunction fragment_createClass(Constructor, protoProps, staticProps) { if (protoProps) fragment_defineProperties(Constructor.prototype, protoProps); if (staticProps) fragment_defineProperties(Constructor, staticProps); return Constructor; }\n\n\n\n\nvar ElementaryStreamTypes;\n\n(function (ElementaryStreamTypes) {\n  ElementaryStreamTypes[\"AUDIO\"] = \"audio\";\n  ElementaryStreamTypes[\"VIDEO\"] = \"video\";\n})(ElementaryStreamTypes || (ElementaryStreamTypes = {}));\n\nvar fragment_Fragment = /*#__PURE__*/function () {\n  function Fragment() {\n    var _this$_elementaryStre;\n\n    this._url = null;\n    this._byteRange = null;\n    this._decryptdata = null;\n    this._elementaryStreams = (_this$_elementaryStre = {}, _this$_elementaryStre[ElementaryStreamTypes.AUDIO] = false, _this$_elementaryStre[ElementaryStreamTypes.VIDEO] = false, _this$_elementaryStre);\n    this.deltaPTS = 0;\n    this.rawProgramDateTime = null;\n    this.programDateTime = null;\n    this.title = null;\n    this.tagList = [];\n    this.cc = void 0;\n    this.type = void 0;\n    this.relurl = void 0;\n    this.baseurl = void 0;\n    this.duration = void 0;\n    this.start = void 0;\n    this.sn = 0;\n    this.urlId = 0;\n    this.level = 0;\n    this.levelkey = void 0;\n    this.loader = void 0;\n  }\n\n  var _proto = Fragment.prototype;\n\n  // setByteRange converts a EXT-X-BYTERANGE attribute into a two element array\n  _proto.setByteRange = function setByteRange(value, previousFrag) {\n    var params = value.split('@', 2);\n    var byteRange = [];\n\n    if (params.length === 1) {\n      byteRange[0] = previousFrag ? previousFrag.byteRangeEndOffset : 0;\n    } else {\n      byteRange[0] = parseInt(params[1]);\n    }\n\n    byteRange[1] = parseInt(params[0]) + byteRange[0];\n    this._byteRange = byteRange;\n  };\n\n  /**\n   * @param {ElementaryStreamTypes} type\n   */\n  _proto.addElementaryStream = function addElementaryStream(type) {\n    this._elementaryStreams[type] = true;\n  }\n  /**\n   * @param {ElementaryStreamTypes} type\n   */\n  ;\n\n  _proto.hasElementaryStream = function hasElementaryStream(type) {\n    return this._elementaryStreams[type] === true;\n  }\n  /**\n   * Utility method for parseLevelPlaylist to create an initialization vector for a given segment\n   * @param {number} segmentNumber - segment number to generate IV with\n   * @returns {Uint8Array}\n   */\n  ;\n\n  _proto.createInitializationVector = function createInitializationVector(segmentNumber) {\n    var uint8View = new Uint8Array(16);\n\n    for (var i = 12; i < 16; i++) {\n      uint8View[i] = segmentNumber >> 8 * (15 - i) & 0xff;\n    }\n\n    return uint8View;\n  }\n  /**\n   * Utility method for parseLevelPlaylist to get a fragment's decryption data from the currently parsed encryption key data\n   * @param levelkey - a playlist's encryption info\n   * @param segmentNumber - the fragment's segment number\n   * @returns {LevelKey} - an object to be applied as a fragment's decryptdata\n   */\n  ;\n\n  _proto.setDecryptDataFromLevelKey = function setDecryptDataFromLevelKey(levelkey, segmentNumber) {\n    var decryptdata = levelkey;\n\n    if ((levelkey === null || levelkey === void 0 ? void 0 : levelkey.method) && levelkey.uri && !levelkey.iv) {\n      decryptdata = new level_key_LevelKey(levelkey.baseuri, levelkey.reluri);\n      decryptdata.method = levelkey.method;\n      decryptdata.iv = this.createInitializationVector(segmentNumber);\n    }\n\n    return decryptdata;\n  };\n\n  fragment_createClass(Fragment, [{\n    key: \"url\",\n    get: function get() {\n      if (!this._url && this.relurl) {\n        this._url = Object(url_toolkit[\"buildAbsoluteURL\"])(this.baseurl, this.relurl, {\n          alwaysNormalize: true\n        });\n      }\n\n      return this._url;\n    },\n    set: function set(value) {\n      this._url = value;\n    }\n  }, {\n    key: \"byteRange\",\n    get: function get() {\n      if (!this._byteRange) {\n        return [];\n      }\n\n      return this._byteRange;\n    }\n    /**\n     * @type {number}\n     */\n\n  }, {\n    key: \"byteRangeStartOffset\",\n    get: function get() {\n      return this.byteRange[0];\n    }\n  }, {\n    key: \"byteRangeEndOffset\",\n    get: function get() {\n      return this.byteRange[1];\n    }\n  }, {\n    key: \"decryptdata\",\n    get: function get() {\n      if (!this.levelkey && !this._decryptdata) {\n        return null;\n      }\n\n      if (!this._decryptdata && this.levelkey) {\n        var sn = this.sn;\n\n        if (typeof sn !== 'number') {\n          // We are fetching decryption data for a initialization segment\n          // If the segment was encrypted with AES-128\n          // It must have an IV defined. We cannot substitute the Segment Number in.\n          if (this.levelkey && this.levelkey.method === 'AES-128' && !this.levelkey.iv) {\n            logger[\"logger\"].warn(\"missing IV for initialization segment with method=\\\"\" + this.levelkey.method + \"\\\" - compliance issue\");\n          }\n          /*\n          Be converted to a Number.\n          'initSegment' will become NaN.\n          NaN, which when converted through ToInt32() -> +0.\n          ---\n          Explicitly set sn to resulting value from implicit conversions 'initSegment' values for IV generation.\n          */\n\n\n          sn = 0;\n        }\n\n        this._decryptdata = this.setDecryptDataFromLevelKey(this.levelkey, sn);\n      }\n\n      return this._decryptdata;\n    }\n  }, {\n    key: \"endProgramDateTime\",\n    get: function get() {\n      if (this.programDateTime === null) {\n        return null;\n      }\n\n      if (!Object(number_isFinite[\"isFiniteNumber\"])(this.programDateTime)) {\n        return null;\n      }\n\n      var duration = !Object(number_isFinite[\"isFiniteNumber\"])(this.duration) ? 0 : this.duration;\n      return this.programDateTime + duration * 1000;\n    }\n  }, {\n    key: \"encrypted\",\n    get: function get() {\n      return !!(this.decryptdata && this.decryptdata.uri !== null && this.decryptdata.key === null);\n    }\n  }]);\n\n  return Fragment;\n}();\n\n\n// CONCATENATED MODULE: ./src/loader/level.js\n\n\nfunction level_defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if (\"value\" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }\n\nfunction level_createClass(Constructor, protoProps, staticProps) { if (protoProps) level_defineProperties(Constructor.prototype, protoProps); if (staticProps) level_defineProperties(Constructor, staticProps); return Constructor; }\n\nvar level_Level = /*#__PURE__*/function () {\n  function Level(baseUrl) {\n    // Please keep properties in alphabetical order\n    this.endCC = 0;\n    this.endSN = 0;\n    this.fragments = [];\n    this.initSegment = null;\n    this.live = true;\n    this.needSidxRanges = false;\n    this.startCC = 0;\n    this.startSN = 0;\n    this.startTimeOffset = null;\n    this.targetduration = 0;\n    this.totalduration = 0;\n    this.type = null;\n    this.url = baseUrl;\n    this.version = null;\n  }\n\n  level_createClass(Level, [{\n    key: \"hasProgramDateTime\",\n    get: function get() {\n      return !!(this.fragments[0] && Object(number_isFinite[\"isFiniteNumber\"])(this.fragments[0].programDateTime));\n    }\n  }]);\n\n  return Level;\n}();\n\n\n// CONCATENATED MODULE: ./src/utils/attr-list.js\nvar DECIMAL_RESOLUTION_REGEX = /^(\\d+)x(\\d+)$/; // eslint-disable-line no-useless-escape\n\nvar ATTR_LIST_REGEX = /\\s*(.+?)\\s*=((?:\\\".*?\\\")|.*?)(?:,|$)/g; // eslint-disable-line no-useless-escape\n// adapted from https://github.com/kanongil/node-m3u8parse/blob/master/attrlist.js\n\nvar AttrList = /*#__PURE__*/function () {\n  function AttrList(attrs) {\n    if (typeof attrs === 'string') {\n      attrs = AttrList.parseAttrList(attrs);\n    }\n\n    for (var attr in attrs) {\n      if (attrs.hasOwnProperty(attr)) {\n        this[attr] = attrs[attr];\n      }\n    }\n  }\n\n  var _proto = AttrList.prototype;\n\n  _proto.decimalInteger = function decimalInteger(attrName) {\n    var intValue = parseInt(this[attrName], 10);\n\n    if (intValue > Number.MAX_SAFE_INTEGER) {\n      return Infinity;\n    }\n\n    return intValue;\n  };\n\n  _proto.hexadecimalInteger = function hexadecimalInteger(attrName) {\n    if (this[attrName]) {\n      var stringValue = (this[attrName] || '0x').slice(2);\n      stringValue = (stringValue.length & 1 ? '0' : '') + stringValue;\n      var value = new Uint8Array(stringValue.length / 2);\n\n      for (var i = 0; i < stringValue.length / 2; i++) {\n        value[i] = parseInt(stringValue.slice(i * 2, i * 2 + 2), 16);\n      }\n\n      return value;\n    } else {\n      return null;\n    }\n  };\n\n  _proto.hexadecimalIntegerAsNumber = function hexadecimalIntegerAsNumber(attrName) {\n    var intValue = parseInt(this[attrName], 16);\n\n    if (intValue > Number.MAX_SAFE_INTEGER) {\n      return Infinity;\n    }\n\n    return intValue;\n  };\n\n  _proto.decimalFloatingPoint = function decimalFloatingPoint(attrName) {\n    return parseFloat(this[attrName]);\n  };\n\n  _proto.enumeratedString = function enumeratedString(attrName) {\n    return this[attrName];\n  };\n\n  _proto.decimalResolution = function decimalResolution(attrName) {\n    var res = DECIMAL_RESOLUTION_REGEX.exec(this[attrName]);\n\n    if (res === null) {\n      return undefined;\n    }\n\n    return {\n      width: parseInt(res[1], 10),\n      height: parseInt(res[2], 10)\n    };\n  };\n\n  AttrList.parseAttrList = function parseAttrList(input) {\n    var match,\n        attrs = {};\n    ATTR_LIST_REGEX.lastIndex = 0;\n\n    while ((match = ATTR_LIST_REGEX.exec(input)) !== null) {\n      var value = match[2],\n          quote = '\"';\n\n      if (value.indexOf(quote) === 0 && value.lastIndexOf(quote) === value.length - 1) {\n        value = value.slice(1, -1);\n      }\n\n      attrs[match[1]] = value;\n    }\n\n    return attrs;\n  };\n\n  return AttrList;\n}();\n\n/* harmony default export */ var attr_list = (AttrList);\n// CONCATENATED MODULE: ./src/utils/codecs.ts\n// from http://mp4ra.org/codecs.html\nvar sampleEntryCodesISO = {\n  audio: {\n    'a3ds': true,\n    'ac-3': true,\n    'ac-4': true,\n    'alac': true,\n    'alaw': true,\n    'dra1': true,\n    'dts+': true,\n    'dts-': true,\n    'dtsc': true,\n    'dtse': true,\n    'dtsh': true,\n    'ec-3': true,\n    'enca': true,\n    'g719': true,\n    'g726': true,\n    'm4ae': true,\n    'mha1': true,\n    'mha2': true,\n    'mhm1': true,\n    'mhm2': true,\n    'mlpa': true,\n    'mp4a': true,\n    'raw ': true,\n    'Opus': true,\n    'samr': true,\n    'sawb': true,\n    'sawp': true,\n    'sevc': true,\n    'sqcp': true,\n    'ssmv': true,\n    'twos': true,\n    'ulaw': true\n  },\n  video: {\n    'avc1': true,\n    'avc2': true,\n    'avc3': true,\n    'avc4': true,\n    'avcp': true,\n    'drac': true,\n    'dvav': true,\n    'dvhe': true,\n    'encv': true,\n    'hev1': true,\n    'hvc1': true,\n    'mjp2': true,\n    'mp4v': true,\n    'mvc1': true,\n    'mvc2': true,\n    'mvc3': true,\n    'mvc4': true,\n    'resv': true,\n    'rv60': true,\n    's263': true,\n    'svc1': true,\n    'svc2': true,\n    'vc-1': true,\n    'vp08': true,\n    'vp09': true\n  }\n};\n\nfunction isCodecType(codec, type) {\n  var typeCodes = sampleEntryCodesISO[type];\n  return !!typeCodes && typeCodes[codec.slice(0, 4)] === true;\n}\n\nfunction isCodecSupportedInMp4(codec, type) {\n  return MediaSource.isTypeSupported((type || 'video') + \"/mp4;codecs=\\\"\" + codec + \"\\\"\");\n}\n\n\n// CONCATENATED MODULE: ./src/loader/m3u8-parser.ts\n\n\n\n\n\n\n\n\n\n\n\n/**\n * M3U8 parser\n * @module\n */\n// https://regex101.com is your friend\nvar MASTER_PLAYLIST_REGEX = /(?:#EXT-X-STREAM-INF:([^\\n\\r]*)[\\r\\n]+([^\\r\\n]+)|#EXT-X-SESSION-DATA:([^\\n\\r]*)[\\r\\n]+)/g;\nvar MASTER_PLAYLIST_MEDIA_REGEX = /#EXT-X-MEDIA:(.*)/g;\nvar LEVEL_PLAYLIST_REGEX_FAST = new RegExp([/#EXTINF:\\s*(\\d*(?:\\.\\d+)?)(?:,(.*)\\s+)?/.source, // duration (#EXTINF:<duration>,<title>), group 1 => duration, group 2 => title\n/|(?!#)([\\S+ ?]+)/.source, // segment URI, group 3 => the URI (note newline is not eaten)\n/|#EXT-X-BYTERANGE:*(.+)/.source, // next segment's byterange, group 4 => range spec (x@y)\n/|#EXT-X-PROGRAM-DATE-TIME:(.+)/.source, // next segment's program date/time group 5 => the datetime spec\n/|#.*/.source // All other non-segment oriented tags will match with all groups empty\n].join(''), 'g');\nvar LEVEL_PLAYLIST_REGEX_SLOW = /(?:(?:#(EXTM3U))|(?:#EXT-X-(PLAYLIST-TYPE):(.+))|(?:#EXT-X-(MEDIA-SEQUENCE): *(\\d+))|(?:#EXT-X-(TARGETDURATION): *(\\d+))|(?:#EXT-X-(KEY):(.+))|(?:#EXT-X-(START):(.+))|(?:#EXT-X-(ENDLIST))|(?:#EXT-X-(DISCONTINUITY-SEQ)UENCE:(\\d+))|(?:#EXT-X-(DIS)CONTINUITY))|(?:#EXT-X-(VERSION):(\\d+))|(?:#EXT-X-(MAP):(.+))|(?:(#)([^:]*):(.*))|(?:(#)(.*))(?:.*)\\r?\\n?/;\nvar MP4_REGEX_SUFFIX = /\\.(mp4|m4s|m4v|m4a)$/i;\n\nvar m3u8_parser_M3U8Parser = /*#__PURE__*/function () {\n  function M3U8Parser() {}\n\n  M3U8Parser.findGroup = function findGroup(groups, mediaGroupId) {\n    for (var i = 0; i < groups.length; i++) {\n      var group = groups[i];\n\n      if (group.id === mediaGroupId) {\n        return group;\n      }\n    }\n  };\n\n  M3U8Parser.convertAVC1ToAVCOTI = function convertAVC1ToAVCOTI(codec) {\n    var avcdata = codec.split('.');\n    var result;\n\n    if (avcdata.length > 2) {\n      result = avcdata.shift() + '.';\n      result += parseInt(avcdata.shift()).toString(16);\n      result += ('000' + parseInt(avcdata.shift()).toString(16)).substr(-4);\n    } else {\n      result = codec;\n    }\n\n    return result;\n  };\n\n  M3U8Parser.resolve = function resolve(url, baseUrl) {\n    return url_toolkit[\"buildAbsoluteURL\"](baseUrl, url, {\n      alwaysNormalize: true\n    });\n  };\n\n  M3U8Parser.parseMasterPlaylist = function parseMasterPlaylist(string, baseurl) {\n    // TODO(typescript-level)\n    var levels = [];\n    var sessionData = {};\n    var hasSessionData = false;\n    MASTER_PLAYLIST_REGEX.lastIndex = 0; // TODO(typescript-level)\n\n    function setCodecs(codecs, level) {\n      ['video', 'audio'].forEach(function (type) {\n        var filtered = codecs.filter(function (codec) {\n          return isCodecType(codec, type);\n        });\n\n        if (filtered.length) {\n          var preferred = filtered.filter(function (codec) {\n            return codec.lastIndexOf('avc1', 0) === 0 || codec.lastIndexOf('mp4a', 0) === 0;\n          });\n          level[type + \"Codec\"] = preferred.length > 0 ? preferred[0] : filtered[0]; // remove from list\n\n          codecs = codecs.filter(function (codec) {\n            return filtered.indexOf(codec) === -1;\n          });\n        }\n      });\n      level.unknownCodecs = codecs;\n    }\n\n    var result;\n\n    while ((result = MASTER_PLAYLIST_REGEX.exec(string)) != null) {\n      if (result[1]) {\n        // '#EXT-X-STREAM-INF' is found, parse level tag  in group 1\n        // TODO(typescript-level)\n        var level = {};\n        var attrs = level.attrs = new attr_list(result[1]);\n        level.url = M3U8Parser.resolve(result[2], baseurl);\n        var resolution = attrs.decimalResolution('RESOLUTION');\n\n        if (resolution) {\n          level.width = resolution.width;\n          level.height = resolution.height;\n        }\n\n        level.bitrate = attrs.decimalInteger('AVERAGE-BANDWIDTH') || attrs.decimalInteger('BANDWIDTH');\n        level.name = attrs.NAME;\n        setCodecs([].concat((attrs.CODECS || '').split(/[ ,]+/)), level);\n\n        if (level.videoCodec && level.videoCodec.indexOf('avc1') !== -1) {\n          level.videoCodec = M3U8Parser.convertAVC1ToAVCOTI(level.videoCodec);\n        }\n\n        levels.push(level);\n      } else if (result[3]) {\n        // '#EXT-X-SESSION-DATA' is found, parse session data in group 3\n        var sessionAttrs = new attr_list(result[3]);\n\n        if (sessionAttrs['DATA-ID']) {\n          hasSessionData = true;\n          sessionData[sessionAttrs['DATA-ID']] = sessionAttrs;\n        }\n      }\n    }\n\n    return {\n      levels: levels,\n      sessionData: hasSessionData ? sessionData : null\n    };\n  };\n\n  M3U8Parser.parseMasterPlaylistMedia = function parseMasterPlaylistMedia(string, baseurl, type, audioGroups) {\n    if (audioGroups === void 0) {\n      audioGroups = [];\n    }\n\n    var result;\n    var medias = [];\n    var id = 0;\n    MASTER_PLAYLIST_MEDIA_REGEX.lastIndex = 0;\n\n    while ((result = MASTER_PLAYLIST_MEDIA_REGEX.exec(string)) !== null) {\n      var attrs = new attr_list(result[1]);\n\n      if (attrs.TYPE === type) {\n        var media = {\n          attrs: attrs,\n          id: id++,\n          groupId: attrs['GROUP-ID'],\n          instreamId: attrs['INSTREAM-ID'],\n          name: attrs.NAME || attrs.LANGUAGE,\n          type: type,\n          default: attrs.DEFAULT === 'YES',\n          autoselect: attrs.AUTOSELECT === 'YES',\n          forced: attrs.FORCED === 'YES',\n          lang: attrs.LANGUAGE\n        };\n\n        if (attrs.URI) {\n          media.url = M3U8Parser.resolve(attrs.URI, baseurl);\n        }\n\n        if (audioGroups.length) {\n          // If there are audio groups signalled in the manifest, let's look for a matching codec string for this track\n          var groupCodec = M3U8Parser.findGroup(audioGroups, media.groupId); // If we don't find the track signalled, lets use the first audio groups codec we have\n          // Acting as a best guess\n\n          media.audioCodec = groupCodec ? groupCodec.codec : audioGroups[0].codec;\n        }\n\n        medias.push(media);\n      }\n    }\n\n    return medias;\n  };\n\n  M3U8Parser.parseLevelPlaylist = function parseLevelPlaylist(string, baseurl, id, type, levelUrlId) {\n    var currentSN = 0;\n    var totalduration = 0;\n    var level = new level_Level(baseurl);\n    var discontinuityCounter = 0;\n    var prevFrag = null;\n    var frag = new fragment_Fragment();\n    var result;\n    var i;\n    var levelkey;\n    var firstPdtIndex = null;\n    LEVEL_PLAYLIST_REGEX_FAST.lastIndex = 0;\n\n    while ((result = LEVEL_PLAYLIST_REGEX_FAST.exec(string)) !== null) {\n      var duration = result[1];\n\n      if (duration) {\n        // INF\n        frag.duration = parseFloat(duration); // avoid sliced strings    https://github.com/video-dev/hls.js/issues/939\n\n        var title = (' ' + result[2]).slice(1);\n        frag.title = title || null;\n        frag.tagList.push(title ? ['INF', duration, title] : ['INF', duration]);\n      } else if (result[3]) {\n        // url\n        if (Object(number_isFinite[\"isFiniteNumber\"])(frag.duration)) {\n          var sn = currentSN++;\n          frag.type = type;\n          frag.start = totalduration;\n\n          if (levelkey) {\n            frag.levelkey = levelkey;\n          }\n\n          frag.sn = sn;\n          frag.level = id;\n          frag.cc = discontinuityCounter;\n          frag.urlId = levelUrlId;\n          frag.baseurl = baseurl; // avoid sliced strings    https://github.com/video-dev/hls.js/issues/939\n\n          frag.relurl = (' ' + result[3]).slice(1);\n          assignProgramDateTime(frag, prevFrag);\n          level.fragments.push(frag);\n          prevFrag = frag;\n          totalduration += frag.duration;\n          frag = new fragment_Fragment();\n        }\n      } else if (result[4]) {\n        // X-BYTERANGE\n        var data = (' ' + result[4]).slice(1);\n\n        if (prevFrag) {\n          frag.setByteRange(data, prevFrag);\n        } else {\n          frag.setByteRange(data);\n        }\n      } else if (result[5]) {\n        // PROGRAM-DATE-TIME\n        // avoid sliced strings    https://github.com/video-dev/hls.js/issues/939\n        frag.rawProgramDateTime = (' ' + result[5]).slice(1);\n        frag.tagList.push(['PROGRAM-DATE-TIME', frag.rawProgramDateTime]);\n\n        if (firstPdtIndex === null) {\n          firstPdtIndex = level.fragments.length;\n        }\n      } else {\n        result = result[0].match(LEVEL_PLAYLIST_REGEX_SLOW);\n\n        if (!result) {\n          logger[\"logger\"].warn('No matches on slow regex match for level playlist!');\n          continue;\n        }\n\n        for (i = 1; i < result.length; i++) {\n          if (typeof result[i] !== 'undefined') {\n            break;\n          }\n        } // avoid sliced strings    https://github.com/video-dev/hls.js/issues/939\n\n\n        var value1 = (' ' + result[i + 1]).slice(1);\n        var value2 = (' ' + result[i + 2]).slice(1);\n\n        switch (result[i]) {\n          case '#':\n            frag.tagList.push(value2 ? [value1, value2] : [value1]);\n            break;\n\n          case 'PLAYLIST-TYPE':\n            level.type = value1.toUpperCase();\n            break;\n\n          case 'MEDIA-SEQUENCE':\n            currentSN = level.startSN = parseInt(value1);\n            break;\n\n          case 'TARGETDURATION':\n            level.targetduration = parseFloat(value1);\n            break;\n\n          case 'VERSION':\n            level.version = parseInt(value1);\n            break;\n\n          case 'EXTM3U':\n            break;\n\n          case 'ENDLIST':\n            level.live = false;\n            break;\n\n          case 'DIS':\n            discontinuityCounter++;\n            frag.tagList.push(['DIS']);\n            break;\n\n          case 'DISCONTINUITY-SEQ':\n            discontinuityCounter = parseInt(value1);\n            break;\n\n          case 'KEY':\n            {\n              // https://tools.ietf.org/html/rfc8216#section-4.3.2.4\n              var decryptparams = value1;\n              var keyAttrs = new attr_list(decryptparams);\n              var decryptmethod = keyAttrs.enumeratedString('METHOD');\n              var decrypturi = keyAttrs.URI;\n              var decryptiv = keyAttrs.hexadecimalInteger('IV'); // From RFC: This attribute is OPTIONAL; its absence indicates an implicit value of \"identity\".\n\n              var decryptkeyformat = keyAttrs.KEYFORMAT || 'identity';\n\n              if (decryptkeyformat === 'com.apple.streamingkeydelivery') {\n                logger[\"logger\"].warn('Keyformat com.apple.streamingkeydelivery is not supported');\n                continue;\n              }\n\n              if (decryptmethod) {\n                levelkey = new level_key_LevelKey(baseurl, decrypturi);\n\n                if (decrypturi && ['AES-128', 'SAMPLE-AES', 'SAMPLE-AES-CENC'].indexOf(decryptmethod) >= 0) {\n                  levelkey.method = decryptmethod;\n                  levelkey.key = null; // Initialization Vector (IV)\n\n                  levelkey.iv = decryptiv;\n                }\n              }\n\n              break;\n            }\n\n          case 'START':\n            {\n              var startAttrs = new attr_list(value1);\n              var startTimeOffset = startAttrs.decimalFloatingPoint('TIME-OFFSET'); // TIME-OFFSET can be 0\n\n              if (Object(number_isFinite[\"isFiniteNumber\"])(startTimeOffset)) {\n                level.startTimeOffset = startTimeOffset;\n              }\n\n              break;\n            }\n\n          case 'MAP':\n            {\n              var mapAttrs = new attr_list(value1);\n              frag.relurl = mapAttrs.URI;\n\n              if (mapAttrs.BYTERANGE) {\n                frag.setByteRange(mapAttrs.BYTERANGE);\n              }\n\n              frag.baseurl = baseurl;\n              frag.level = id;\n              frag.type = type;\n              frag.sn = 'initSegment';\n              level.initSegment = frag;\n              frag = new fragment_Fragment();\n              frag.rawProgramDateTime = level.initSegment.rawProgramDateTime;\n              break;\n            }\n\n          default:\n            logger[\"logger\"].warn(\"line parsed but not handled: \" + result);\n            break;\n        }\n      }\n    }\n\n    frag = prevFrag; // logger.log('found ' + level.fragments.length + ' fragments');\n\n    if (frag && !frag.relurl) {\n      level.fragments.pop();\n      totalduration -= frag.duration;\n    }\n\n    level.totalduration = totalduration;\n    level.averagetargetduration = totalduration / level.fragments.length;\n    level.endSN = currentSN - 1;\n    level.startCC = level.fragments[0] ? level.fragments[0].cc : 0;\n    level.endCC = discontinuityCounter;\n\n    if (!level.initSegment && level.fragments.length) {\n      // this is a bit lurky but HLS really has no other way to tell us\n      // if the fragments are TS or MP4, except if we download them :/\n      // but this is to be able to handle SIDX.\n      if (level.fragments.every(function (frag) {\n        return MP4_REGEX_SUFFIX.test(frag.relurl);\n      })) {\n        logger[\"logger\"].warn('MP4 fragments found but no init segment (probably no MAP, incomplete M3U8), trying to fetch SIDX');\n        frag = new fragment_Fragment();\n        frag.relurl = level.fragments[0].relurl;\n        frag.baseurl = baseurl;\n        frag.level = id;\n        frag.type = type;\n        frag.sn = 'initSegment';\n        level.initSegment = frag;\n        level.needSidxRanges = true;\n      }\n    }\n    /**\n     * Backfill any missing PDT values\n       \"If the first EXT-X-PROGRAM-DATE-TIME tag in a Playlist appears after\n       one or more Media Segment URIs, the client SHOULD extrapolate\n       backward from that tag (using EXTINF durations and/or media\n       timestamps) to associate dates with those segments.\"\n     * We have already extrapolated forward, but all fragments up to the first instance of PDT do not have their PDTs\n     * computed.\n     */\n\n\n    if (firstPdtIndex) {\n      backfillProgramDateTimes(level.fragments, firstPdtIndex);\n    }\n\n    return level;\n  };\n\n  return M3U8Parser;\n}();\n\n\n\nfunction backfillProgramDateTimes(fragments, startIndex) {\n  var fragPrev = fragments[startIndex];\n\n  for (var i = startIndex - 1; i >= 0; i--) {\n    var frag = fragments[i];\n    frag.programDateTime = fragPrev.programDateTime - frag.duration * 1000;\n    fragPrev = frag;\n  }\n}\n\nfunction assignProgramDateTime(frag, prevFrag) {\n  if (frag.rawProgramDateTime) {\n    frag.programDateTime = Date.parse(frag.rawProgramDateTime);\n  } else if (prevFrag === null || prevFrag === void 0 ? void 0 : prevFrag.programDateTime) {\n    frag.programDateTime = prevFrag.endProgramDateTime;\n  }\n\n  if (!Object(number_isFinite[\"isFiniteNumber\"])(frag.programDateTime)) {\n    frag.programDateTime = null;\n    frag.rawProgramDateTime = null;\n  }\n}\n// CONCATENATED MODULE: ./src/loader/playlist-loader.ts\n\n\n\nfunction _inheritsLoose(subClass, superClass) { subClass.prototype = Object.create(superClass.prototype); subClass.prototype.constructor = subClass; subClass.__proto__ = superClass; }\n\n/**\n * PlaylistLoader - delegate for media manifest/playlist loading tasks. Takes care of parsing media to internal data-models.\n *\n * Once loaded, dispatches events with parsed data-models of manifest/levels/audio/subtitle tracks.\n *\n * Uses loader(s) set in config to do actual internal loading of resource tasks.\n *\n * @module\n *\n */\n\n\n\n\n\n\n\nvar _window = window,\n    performance = _window.performance;\n/**\n * @constructor\n */\n\nvar playlist_loader_PlaylistLoader = /*#__PURE__*/function (_EventHandler) {\n  _inheritsLoose(PlaylistLoader, _EventHandler);\n\n  /**\n   * @constructs\n   * @param {Hls} hls\n   */\n  function PlaylistLoader(hls) {\n    var _this;\n\n    _this = _EventHandler.call(this, hls, events[\"default\"].MANIFEST_LOADING, events[\"default\"].LEVEL_LOADING, events[\"default\"].AUDIO_TRACK_LOADING, events[\"default\"].SUBTITLE_TRACK_LOADING) || this;\n    _this.loaders = {};\n    return _this;\n  }\n  /**\n   * @param {PlaylistContextType} type\n   * @returns {boolean}\n   */\n\n\n  PlaylistLoader.canHaveQualityLevels = function canHaveQualityLevels(type) {\n    return type !== PlaylistContextType.AUDIO_TRACK && type !== PlaylistContextType.SUBTITLE_TRACK;\n  }\n  /**\n   * Map context.type to LevelType\n   * @param {PlaylistLoaderContext} context\n   * @returns {LevelType}\n   */\n  ;\n\n  PlaylistLoader.mapContextToLevelType = function mapContextToLevelType(context) {\n    var type = context.type;\n\n    switch (type) {\n      case PlaylistContextType.AUDIO_TRACK:\n        return PlaylistLevelType.AUDIO;\n\n      case PlaylistContextType.SUBTITLE_TRACK:\n        return PlaylistLevelType.SUBTITLE;\n\n      default:\n        return PlaylistLevelType.MAIN;\n    }\n  };\n\n  PlaylistLoader.getResponseUrl = function getResponseUrl(response, context) {\n    var url = response.url; // responseURL not supported on some browsers (it is used to detect URL redirection)\n    // data-uri mode also not supported (but no need to detect redirection)\n\n    if (url === undefined || url.indexOf('data:') === 0) {\n      // fallback to initial URL\n      url = context.url;\n    }\n\n    return url;\n  }\n  /**\n   * Returns defaults or configured loader-type overloads (pLoader and loader config params)\n   * Default loader is XHRLoader (see utils)\n   * @param {PlaylistLoaderContext} context\n   * @returns {Loader} or other compatible configured overload\n   */\n  ;\n\n  var _proto = PlaylistLoader.prototype;\n\n  _proto.createInternalLoader = function createInternalLoader(context) {\n    var config = this.hls.config;\n    var PLoader = config.pLoader;\n    var Loader = config.loader; // TODO(typescript-config): Verify once config is typed that InternalLoader always returns a Loader\n\n    var InternalLoader = PLoader || Loader;\n    var loader = new InternalLoader(config); // TODO - Do we really need to assign the instance or if the dep has been lost\n\n    context.loader = loader;\n    this.loaders[context.type] = loader;\n    return loader;\n  };\n\n  _proto.getInternalLoader = function getInternalLoader(context) {\n    return this.loaders[context.type];\n  };\n\n  _proto.resetInternalLoader = function resetInternalLoader(contextType) {\n    if (this.loaders[contextType]) {\n      delete this.loaders[contextType];\n    }\n  }\n  /**\n   * Call `destroy` on all internal loader instances mapped (one per context type)\n   */\n  ;\n\n  _proto.destroyInternalLoaders = function destroyInternalLoaders() {\n    for (var contextType in this.loaders) {\n      var loader = this.loaders[contextType];\n\n      if (loader) {\n        loader.destroy();\n      }\n\n      this.resetInternalLoader(contextType);\n    }\n  };\n\n  _proto.destroy = function destroy() {\n    this.destroyInternalLoaders();\n\n    _EventHandler.prototype.destroy.call(this);\n  };\n\n  _proto.onManifestLoading = function onManifestLoading(data) {\n    this.load({\n      url: data.url,\n      type: PlaylistContextType.MANIFEST,\n      level: 0,\n      id: null,\n      responseType: 'text'\n    });\n  };\n\n  _proto.onLevelLoading = function onLevelLoading(data) {\n    this.load({\n      url: data.url,\n      type: PlaylistContextType.LEVEL,\n      level: data.level,\n      id: data.id,\n      responseType: 'text'\n    });\n  };\n\n  _proto.onAudioTrackLoading = function onAudioTrackLoading(data) {\n    this.load({\n      url: data.url,\n      type: PlaylistContextType.AUDIO_TRACK,\n      level: null,\n      id: data.id,\n      responseType: 'text'\n    });\n  };\n\n  _proto.onSubtitleTrackLoading = function onSubtitleTrackLoading(data) {\n    this.load({\n      url: data.url,\n      type: PlaylistContextType.SUBTITLE_TRACK,\n      level: null,\n      id: data.id,\n      responseType: 'text'\n    });\n  };\n\n  _proto.load = function load(context) {\n    var config = this.hls.config;\n    logger[\"logger\"].debug(\"Loading playlist of type \" + context.type + \", level: \" + context.level + \", id: \" + context.id); // Check if a loader for this context already exists\n\n    var loader = this.getInternalLoader(context);\n\n    if (loader) {\n      var loaderContext = loader.context;\n\n      if (loaderContext && loaderContext.url === context.url) {\n        // same URL can't overlap\n        logger[\"logger\"].trace('playlist request ongoing');\n        return false;\n      } else {\n        logger[\"logger\"].warn(\"aborting previous loader for type: \" + context.type);\n        loader.abort();\n      }\n    }\n\n    var maxRetry;\n    var timeout;\n    var retryDelay;\n    var maxRetryDelay; // apply different configs for retries depending on\n    // context (manifest, level, audio/subs playlist)\n\n    switch (context.type) {\n      case PlaylistContextType.MANIFEST:\n        maxRetry = config.manifestLoadingMaxRetry;\n        timeout = config.manifestLoadingTimeOut;\n        retryDelay = config.manifestLoadingRetryDelay;\n        maxRetryDelay = config.manifestLoadingMaxRetryTimeout;\n        break;\n\n      case PlaylistContextType.LEVEL:\n        // Disable internal loader retry logic, since we are managing retries in Level Controller\n        maxRetry = 0;\n        maxRetryDelay = 0;\n        retryDelay = 0;\n        timeout = config.levelLoadingTimeOut; // TODO Introduce retry settings for audio-track and subtitle-track, it should not use level retry config\n\n        break;\n\n      default:\n        maxRetry = config.levelLoadingMaxRetry;\n        timeout = config.levelLoadingTimeOut;\n        retryDelay = config.levelLoadingRetryDelay;\n        maxRetryDelay = config.levelLoadingMaxRetryTimeout;\n        break;\n    }\n\n    loader = this.createInternalLoader(context);\n    var loaderConfig = {\n      timeout: timeout,\n      maxRetry: maxRetry,\n      retryDelay: retryDelay,\n      maxRetryDelay: maxRetryDelay\n    };\n    var loaderCallbacks = {\n      onSuccess: this.loadsuccess.bind(this),\n      onError: this.loaderror.bind(this),\n      onTimeout: this.loadtimeout.bind(this)\n    };\n    logger[\"logger\"].debug(\"Calling internal loader delegate for URL: \" + context.url);\n    loader.load(context, loaderConfig, loaderCallbacks);\n    return true;\n  };\n\n  _proto.loadsuccess = function loadsuccess(response, stats, context, networkDetails) {\n    if (networkDetails === void 0) {\n      networkDetails = null;\n    }\n\n    if (context.isSidxRequest) {\n      this._handleSidxRequest(response, context);\n\n      this._handlePlaylistLoaded(response, stats, context, networkDetails);\n\n      return;\n    }\n\n    this.resetInternalLoader(context.type);\n\n    if (typeof response.data !== 'string') {\n      throw new Error('expected responseType of \"text\" for PlaylistLoader');\n    }\n\n    var string = response.data;\n    stats.tload = performance.now(); // stats.mtime = new Date(target.getResponseHeader('Last-Modified'));\n    // Validate if it is an M3U8 at all\n\n    if (string.indexOf('#EXTM3U') !== 0) {\n      this._handleManifestParsingError(response, context, 'no EXTM3U delimiter', networkDetails);\n\n      return;\n    } // Check if chunk-list or master. handle empty chunk list case (first EXTINF not signaled, but TARGETDURATION present)\n\n\n    if (string.indexOf('#EXTINF:') > 0 || string.indexOf('#EXT-X-TARGETDURATION:') > 0) {\n      this._handleTrackOrLevelPlaylist(response, stats, context, networkDetails);\n    } else {\n      this._handleMasterPlaylist(response, stats, context, networkDetails);\n    }\n  };\n\n  _proto.loaderror = function loaderror(response, context, networkDetails) {\n    if (networkDetails === void 0) {\n      networkDetails = null;\n    }\n\n    this._handleNetworkError(context, networkDetails, false, response);\n  };\n\n  _proto.loadtimeout = function loadtimeout(stats, context, networkDetails) {\n    if (networkDetails === void 0) {\n      networkDetails = null;\n    }\n\n    this._handleNetworkError(context, networkDetails, true);\n  } // TODO(typescript-config): networkDetails can currently be a XHR or Fetch impl,\n  // but with custom loaders it could be generic investigate this further when config is typed\n  ;\n\n  _proto._handleMasterPlaylist = function _handleMasterPlaylist(response, stats, context, networkDetails) {\n    var hls = this.hls;\n    var string = response.data;\n    var url = PlaylistLoader.getResponseUrl(response, context);\n\n    var _M3U8Parser$parseMast = m3u8_parser_M3U8Parser.parseMasterPlaylist(string, url),\n        levels = _M3U8Parser$parseMast.levels,\n        sessionData = _M3U8Parser$parseMast.sessionData;\n\n    if (!levels.length) {\n      this._handleManifestParsingError(response, context, 'no level found in manifest', networkDetails);\n\n      return;\n    } // multi level playlist, parse level info\n\n\n    var audioGroups = levels.map(function (level) {\n      return {\n        id: level.attrs.AUDIO,\n        codec: level.audioCodec\n      };\n    });\n    var audioTracks = m3u8_parser_M3U8Parser.parseMasterPlaylistMedia(string, url, 'AUDIO', audioGroups);\n    var subtitles = m3u8_parser_M3U8Parser.parseMasterPlaylistMedia(string, url, 'SUBTITLES');\n    var captions = m3u8_parser_M3U8Parser.parseMasterPlaylistMedia(string, url, 'CLOSED-CAPTIONS');\n\n    if (audioTracks.length) {\n      // check if we have found an audio track embedded in main playlist (audio track without URI attribute)\n      var embeddedAudioFound = false;\n      audioTracks.forEach(function (audioTrack) {\n        if (!audioTrack.url) {\n          embeddedAudioFound = true;\n        }\n      }); // if no embedded audio track defined, but audio codec signaled in quality level,\n      // we need to signal this main audio track this could happen with playlists with\n      // alt audio rendition in which quality levels (main)\n      // contains both audio+video. but with mixed audio track not signaled\n\n      if (embeddedAudioFound === false && levels[0].audioCodec && !levels[0].attrs.AUDIO) {\n        logger[\"logger\"].log('audio codec signaled in quality level, but no embedded audio track signaled, create one');\n        audioTracks.unshift({\n          type: 'main',\n          name: 'main',\n          default: false,\n          autoselect: false,\n          forced: false,\n          id: -1,\n          attrs: {},\n          url: ''\n        });\n      }\n    }\n\n    hls.trigger(events[\"default\"].MANIFEST_LOADED, {\n      levels: levels,\n      audioTracks: audioTracks,\n      subtitles: subtitles,\n      captions: captions,\n      url: url,\n      stats: stats,\n      networkDetails: networkDetails,\n      sessionData: sessionData\n    });\n  };\n\n  _proto._handleTrackOrLevelPlaylist = function _handleTrackOrLevelPlaylist(response, stats, context, networkDetails) {\n    var hls = this.hls;\n    var id = context.id,\n        level = context.level,\n        type = context.type;\n    var url = PlaylistLoader.getResponseUrl(response, context); // if the values are null, they will result in the else conditional\n\n    var levelUrlId = Object(number_isFinite[\"isFiniteNumber\"])(id) ? id : 0;\n    var levelId = Object(number_isFinite[\"isFiniteNumber\"])(level) ? level : levelUrlId;\n    var levelType = PlaylistLoader.mapContextToLevelType(context);\n    var levelDetails = m3u8_parser_M3U8Parser.parseLevelPlaylist(response.data, url, levelId, levelType, levelUrlId); // set stats on level structure\n    // TODO(jstackhouse): why? mixing concerns, is it just treated as value bag?\n\n    levelDetails.tload = stats.tload;\n\n    if (!levelDetails.fragments.length) {\n      hls.trigger(events[\"default\"].ERROR, {\n        type: errors[\"ErrorTypes\"].NETWORK_ERROR,\n        details: errors[\"ErrorDetails\"].LEVEL_EMPTY_ERROR,\n        fatal: false,\n        url: url,\n        reason: 'no fragments found in level',\n        level: typeof context.level === 'number' ? context.level : undefined\n      });\n      return;\n    } // We have done our first request (Manifest-type) and receive\n    // not a master playlist but a chunk-list (track/level)\n    // We fire the manifest-loaded event anyway with the parsed level-details\n    // by creating a single-level structure for it.\n\n\n    if (type === PlaylistContextType.MANIFEST) {\n      var singleLevel = {\n        url: url,\n        details: levelDetails\n      };\n      hls.trigger(events[\"default\"].MANIFEST_LOADED, {\n        levels: [singleLevel],\n        audioTracks: [],\n        url: url,\n        stats: stats,\n        networkDetails: networkDetails,\n        sessionData: null\n      });\n    } // save parsing time\n\n\n    stats.tparsed = performance.now(); // in case we need SIDX ranges\n    // return early after calling load for\n    // the SIDX box.\n\n    if (levelDetails.needSidxRanges) {\n      var sidxUrl = levelDetails.initSegment.url;\n      this.load({\n        url: sidxUrl,\n        isSidxRequest: true,\n        type: type,\n        level: level,\n        levelDetails: levelDetails,\n        id: id,\n        rangeStart: 0,\n        rangeEnd: 2048,\n        responseType: 'arraybuffer'\n      });\n      return;\n    } // extend the context with the new levelDetails property\n\n\n    context.levelDetails = levelDetails;\n\n    this._handlePlaylistLoaded(response, stats, context, networkDetails);\n  };\n\n  _proto._handleSidxRequest = function _handleSidxRequest(response, context) {\n    if (typeof response.data === 'string') {\n      throw new Error('sidx request must be made with responseType of array buffer');\n    }\n\n    var sidxInfo = mp4demuxer[\"default\"].parseSegmentIndex(new Uint8Array(response.data)); // if provided fragment does not contain sidx, early return\n\n    if (!sidxInfo) {\n      return;\n    }\n\n    var sidxReferences = sidxInfo.references;\n    var levelDetails = context.levelDetails;\n    sidxReferences.forEach(function (segmentRef, index) {\n      var segRefInfo = segmentRef.info;\n\n      if (!levelDetails) {\n        return;\n      }\n\n      var frag = levelDetails.fragments[index];\n\n      if (frag.byteRange.length === 0) {\n        frag.setByteRange(String(1 + segRefInfo.end - segRefInfo.start) + '@' + String(segRefInfo.start));\n      }\n    });\n\n    if (levelDetails) {\n      levelDetails.initSegment.setByteRange(String(sidxInfo.moovEndOffset) + '@0');\n    }\n  };\n\n  _proto._handleManifestParsingError = function _handleManifestParsingError(response, context, reason, networkDetails) {\n    this.hls.trigger(events[\"default\"].ERROR, {\n      type: errors[\"ErrorTypes\"].NETWORK_ERROR,\n      details: errors[\"ErrorDetails\"].MANIFEST_PARSING_ERROR,\n      fatal: true,\n      url: response.url,\n      reason: reason,\n      networkDetails: networkDetails\n    });\n  };\n\n  _proto._handleNetworkError = function _handleNetworkError(context, networkDetails, timeout, response) {\n    if (timeout === void 0) {\n      timeout = false;\n    }\n\n    if (response === void 0) {\n      response = null;\n    }\n\n    logger[\"logger\"].info(\"A network error occured while loading a \" + context.type + \"-type playlist\");\n    var details;\n    var fatal;\n    var loader = this.getInternalLoader(context);\n\n    switch (context.type) {\n      case PlaylistContextType.MANIFEST:\n        details = timeout ? errors[\"ErrorDetails\"].MANIFEST_LOAD_TIMEOUT : errors[\"ErrorDetails\"].MANIFEST_LOAD_ERROR;\n        fatal = true;\n        break;\n\n      case PlaylistContextType.LEVEL:\n        details = timeout ? errors[\"ErrorDetails\"].LEVEL_LOAD_TIMEOUT : errors[\"ErrorDetails\"].LEVEL_LOAD_ERROR;\n        fatal = false;\n        break;\n\n      case PlaylistContextType.AUDIO_TRACK:\n        details = timeout ? errors[\"ErrorDetails\"].AUDIO_TRACK_LOAD_TIMEOUT : errors[\"ErrorDetails\"].AUDIO_TRACK_LOAD_ERROR;\n        fatal = false;\n        break;\n\n      default:\n        // details = ...?\n        fatal = false;\n    }\n\n    if (loader) {\n      loader.abort();\n      this.resetInternalLoader(context.type);\n    } // TODO(typescript-events): when error events are handled, type this\n\n\n    var errorData = {\n      type: errors[\"ErrorTypes\"].NETWORK_ERROR,\n      details: details,\n      fatal: fatal,\n      url: context.url,\n      loader: loader,\n      context: context,\n      networkDetails: networkDetails\n    };\n\n    if (response) {\n      errorData.response = response;\n    }\n\n    this.hls.trigger(events[\"default\"].ERROR, errorData);\n  };\n\n  _proto._handlePlaylistLoaded = function _handlePlaylistLoaded(response, stats, context, networkDetails) {\n    var type = context.type,\n        level = context.level,\n        id = context.id,\n        levelDetails = context.levelDetails;\n\n    if (!levelDetails || !levelDetails.targetduration) {\n      this._handleManifestParsingError(response, context, 'invalid target duration', networkDetails);\n\n      return;\n    }\n\n    var canHaveLevels = PlaylistLoader.canHaveQualityLevels(context.type);\n\n    if (canHaveLevels) {\n      this.hls.trigger(events[\"default\"].LEVEL_LOADED, {\n        details: levelDetails,\n        level: level || 0,\n        id: id || 0,\n        stats: stats,\n        networkDetails: networkDetails\n      });\n    } else {\n      switch (type) {\n        case PlaylistContextType.AUDIO_TRACK:\n          this.hls.trigger(events[\"default\"].AUDIO_TRACK_LOADED, {\n            details: levelDetails,\n            id: id,\n            stats: stats,\n            networkDetails: networkDetails\n          });\n          break;\n\n        case PlaylistContextType.SUBTITLE_TRACK:\n          this.hls.trigger(events[\"default\"].SUBTITLE_TRACK_LOADED, {\n            details: levelDetails,\n            id: id,\n            stats: stats,\n            networkDetails: networkDetails\n          });\n          break;\n      }\n    }\n  };\n\n  return PlaylistLoader;\n}(event_handler);\n\n/* harmony default export */ var playlist_loader = (playlist_loader_PlaylistLoader);\n// CONCATENATED MODULE: ./src/loader/fragment-loader.js\n\n\n\nfunction fragment_loader_inheritsLoose(subClass, superClass) { subClass.prototype = Object.create(superClass.prototype); subClass.prototype.constructor = subClass; subClass.__proto__ = superClass; }\n\n/*\n * Fragment Loader\n*/\n\n\n\n\n\nvar fragment_loader_FragmentLoader = /*#__PURE__*/function (_EventHandler) {\n  fragment_loader_inheritsLoose(FragmentLoader, _EventHandler);\n\n  function FragmentLoader(hls) {\n    var _this;\n\n    _this = _EventHandler.call(this, hls, events[\"default\"].FRAG_LOADING) || this;\n    _this.loaders = {};\n    return _this;\n  }\n\n  var _proto = FragmentLoader.prototype;\n\n  _proto.destroy = function destroy() {\n    var loaders = this.loaders;\n\n    for (var loaderName in loaders) {\n      var loader = loaders[loaderName];\n\n      if (loader) {\n        loader.destroy();\n      }\n    }\n\n    this.loaders = {};\n\n    _EventHandler.prototype.destroy.call(this);\n  };\n\n  _proto.onFragLoading = function onFragLoading(data) {\n    var frag = data.frag,\n        type = frag.type,\n        loaders = this.loaders,\n        config = this.hls.config,\n        FragmentILoader = config.fLoader,\n        DefaultILoader = config.loader; // reset fragment state\n\n    frag.loaded = 0;\n    var loader = loaders[type];\n\n    if (loader) {\n      logger[\"logger\"].warn(\"abort previous fragment loader for type: \" + type);\n      loader.abort();\n    }\n\n    loader = loaders[type] = frag.loader = config.fLoader ? new FragmentILoader(config) : new DefaultILoader(config);\n    var loaderContext, loaderConfig, loaderCallbacks;\n    loaderContext = {\n      url: frag.url,\n      frag: frag,\n      responseType: 'arraybuffer',\n      progressData: false\n    };\n    var start = frag.byteRangeStartOffset,\n        end = frag.byteRangeEndOffset;\n\n    if (Object(number_isFinite[\"isFiniteNumber\"])(start) && Object(number_isFinite[\"isFiniteNumber\"])(end)) {\n      loaderContext.rangeStart = start;\n      loaderContext.rangeEnd = end;\n    }\n\n    loaderConfig = {\n      timeout: config.fragLoadingTimeOut,\n      maxRetry: 0,\n      retryDelay: 0,\n      maxRetryDelay: config.fragLoadingMaxRetryTimeout\n    };\n    loaderCallbacks = {\n      onSuccess: this.loadsuccess.bind(this),\n      onError: this.loaderror.bind(this),\n      onTimeout: this.loadtimeout.bind(this),\n      onProgress: this.loadprogress.bind(this)\n    };\n    loader.load(loaderContext, loaderConfig, loaderCallbacks);\n  };\n\n  _proto.loadsuccess = function loadsuccess(response, stats, context, networkDetails) {\n    if (networkDetails === void 0) {\n      networkDetails = null;\n    }\n\n    var payload = response.data,\n        frag = context.frag; // detach fragment loader on load success\n\n    frag.loader = undefined;\n    this.loaders[frag.type] = undefined;\n    this.hls.trigger(events[\"default\"].FRAG_LOADED, {\n      payload: payload,\n      frag: frag,\n      stats: stats,\n      networkDetails: networkDetails\n    });\n  };\n\n  _proto.loaderror = function loaderror(response, context, networkDetails) {\n    if (networkDetails === void 0) {\n      networkDetails = null;\n    }\n\n    var frag = context.frag;\n    var loader = frag.loader;\n\n    if (loader) {\n      loader.abort();\n    }\n\n    this.loaders[frag.type] = undefined;\n    this.hls.trigger(events[\"default\"].ERROR, {\n      type: errors[\"ErrorTypes\"].NETWORK_ERROR,\n      details: errors[\"ErrorDetails\"].FRAG_LOAD_ERROR,\n      fatal: false,\n      frag: context.frag,\n      response: response,\n      networkDetails: networkDetails\n    });\n  };\n\n  _proto.loadtimeout = function loadtimeout(stats, context, networkDetails) {\n    if (networkDetails === void 0) {\n      networkDetails = null;\n    }\n\n    var frag = context.frag;\n    var loader = frag.loader;\n\n    if (loader) {\n      loader.abort();\n    }\n\n    this.loaders[frag.type] = undefined;\n    this.hls.trigger(events[\"default\"].ERROR, {\n      type: errors[\"ErrorTypes\"].NETWORK_ERROR,\n      details: errors[\"ErrorDetails\"].FRAG_LOAD_TIMEOUT,\n      fatal: false,\n      frag: context.frag,\n      networkDetails: networkDetails\n    });\n  } // data will be used for progressive parsing\n  ;\n\n  _proto.loadprogress = function loadprogress(stats, context, data, networkDetails) {\n    if (networkDetails === void 0) {\n      networkDetails = null;\n    }\n\n    // jshint ignore:line\n    var frag = context.frag;\n    frag.loaded = stats.loaded;\n    this.hls.trigger(events[\"default\"].FRAG_LOAD_PROGRESS, {\n      frag: frag,\n      stats: stats,\n      networkDetails: networkDetails\n    });\n  };\n\n  return FragmentLoader;\n}(event_handler);\n\n/* harmony default export */ var fragment_loader = (fragment_loader_FragmentLoader);\n// CONCATENATED MODULE: ./src/loader/key-loader.ts\nfunction key_loader_inheritsLoose(subClass, superClass) { subClass.prototype = Object.create(superClass.prototype); subClass.prototype.constructor = subClass; subClass.__proto__ = superClass; }\n\n/*\n * Decrypt key Loader\n*/\n\n\n\n\n\nvar key_loader_KeyLoader = /*#__PURE__*/function (_EventHandler) {\n  key_loader_inheritsLoose(KeyLoader, _EventHandler);\n\n  function KeyLoader(hls) {\n    var _this;\n\n    _this = _EventHandler.call(this, hls, events[\"default\"].KEY_LOADING) || this;\n    _this.loaders = {};\n    _this.decryptkey = null;\n    _this.decrypturl = null;\n    return _this;\n  }\n\n  var _proto = KeyLoader.prototype;\n\n  _proto.destroy = function destroy() {\n    for (var loaderName in this.loaders) {\n      var loader = this.loaders[loaderName];\n\n      if (loader) {\n        loader.destroy();\n      }\n    }\n\n    this.loaders = {};\n\n    _EventHandler.prototype.destroy.call(this);\n  };\n\n  _proto.onKeyLoading = function onKeyLoading(data) {\n    var frag = data.frag;\n    var type = frag.type;\n    var loader = this.loaders[type];\n\n    if (!frag.decryptdata) {\n      logger[\"logger\"].warn('Missing decryption data on fragment in onKeyLoading');\n      return;\n    } // Load the key if the uri is different from previous one, or if the decrypt key has not yet been retrieved\n\n\n    var uri = frag.decryptdata.uri;\n\n    if (uri !== this.decrypturl || this.decryptkey === null) {\n      var config = this.hls.config;\n\n      if (loader) {\n        logger[\"logger\"].warn(\"abort previous key loader for type:\" + type);\n        loader.abort();\n      }\n\n      if (!uri) {\n        logger[\"logger\"].warn('key uri is falsy');\n        return;\n      }\n\n      frag.loader = this.loaders[type] = new config.loader(config);\n      this.decrypturl = uri;\n      this.decryptkey = null;\n      var loaderContext = {\n        url: uri,\n        frag: frag,\n        responseType: 'arraybuffer'\n      }; // maxRetry is 0 so that instead of retrying the same key on the same variant multiple times,\n      // key-loader will trigger an error and rely on stream-controller to handle retry logic.\n      // this will also align retry logic with fragment-loader\n\n      var loaderConfig = {\n        timeout: config.fragLoadingTimeOut,\n        maxRetry: 0,\n        retryDelay: config.fragLoadingRetryDelay,\n        maxRetryDelay: config.fragLoadingMaxRetryTimeout\n      };\n      var loaderCallbacks = {\n        onSuccess: this.loadsuccess.bind(this),\n        onError: this.loaderror.bind(this),\n        onTimeout: this.loadtimeout.bind(this)\n      };\n      frag.loader.load(loaderContext, loaderConfig, loaderCallbacks);\n    } else if (this.decryptkey) {\n      // Return the key if it's already been loaded\n      frag.decryptdata.key = this.decryptkey;\n      this.hls.trigger(events[\"default\"].KEY_LOADED, {\n        frag: frag\n      });\n    }\n  };\n\n  _proto.loadsuccess = function loadsuccess(response, stats, context) {\n    var frag = context.frag;\n\n    if (!frag.decryptdata) {\n      logger[\"logger\"].error('after key load, decryptdata unset');\n      return;\n    }\n\n    this.decryptkey = frag.decryptdata.key = new Uint8Array(response.data); // detach fragment loader on load success\n\n    frag.loader = undefined;\n    delete this.loaders[frag.type];\n    this.hls.trigger(events[\"default\"].KEY_LOADED, {\n      frag: frag\n    });\n  };\n\n  _proto.loaderror = function loaderror(response, context) {\n    var frag = context.frag;\n    var loader = frag.loader;\n\n    if (loader) {\n      loader.abort();\n    }\n\n    delete this.loaders[frag.type];\n    this.hls.trigger(events[\"default\"].ERROR, {\n      type: errors[\"ErrorTypes\"].NETWORK_ERROR,\n      details: errors[\"ErrorDetails\"].KEY_LOAD_ERROR,\n      fatal: false,\n      frag: frag,\n      response: response\n    });\n  };\n\n  _proto.loadtimeout = function loadtimeout(stats, context) {\n    var frag = context.frag;\n    var loader = frag.loader;\n\n    if (loader) {\n      loader.abort();\n    }\n\n    delete this.loaders[frag.type];\n    this.hls.trigger(events[\"default\"].ERROR, {\n      type: errors[\"ErrorTypes\"].NETWORK_ERROR,\n      details: errors[\"ErrorDetails\"].KEY_LOAD_TIMEOUT,\n      fatal: false,\n      frag: frag\n    });\n  };\n\n  return KeyLoader;\n}(event_handler);\n\n/* harmony default export */ var key_loader = (key_loader_KeyLoader);\n// CONCATENATED MODULE: ./src/controller/fragment-tracker.js\n\n\nfunction fragment_tracker_inheritsLoose(subClass, superClass) { subClass.prototype = Object.create(superClass.prototype); subClass.prototype.constructor = subClass; subClass.__proto__ = superClass; }\n\n\n\nvar FragmentState = {\n  NOT_LOADED: 'NOT_LOADED',\n  APPENDING: 'APPENDING',\n  PARTIAL: 'PARTIAL',\n  OK: 'OK'\n};\nvar fragment_tracker_FragmentTracker = /*#__PURE__*/function (_EventHandler) {\n  fragment_tracker_inheritsLoose(FragmentTracker, _EventHandler);\n\n  function FragmentTracker(hls) {\n    var _this;\n\n    _this = _EventHandler.call(this, hls, events[\"default\"].BUFFER_APPENDED, events[\"default\"].FRAG_BUFFERED, events[\"default\"].FRAG_LOADED) || this;\n    _this.bufferPadding = 0.2;\n    _this.fragments = Object.create(null);\n    _this.timeRanges = Object.create(null);\n    _this.config = hls.config;\n    return _this;\n  }\n\n  var _proto = FragmentTracker.prototype;\n\n  _proto.destroy = function destroy() {\n    this.fragments = Object.create(null);\n    this.timeRanges = Object.create(null);\n    this.config = null;\n    event_handler.prototype.destroy.call(this);\n\n    _EventHandler.prototype.destroy.call(this);\n  }\n  /**\n   * Return a Fragment that match the position and levelType.\n   * If not found any Fragment, return null\n   * @param {number} position\n   * @param {LevelType} levelType\n   * @returns {Fragment|null}\n   */\n  ;\n\n  _proto.getBufferedFrag = function getBufferedFrag(position, levelType) {\n    var fragments = this.fragments;\n    var bufferedFrags = Object.keys(fragments).filter(function (key) {\n      var fragmentEntity = fragments[key];\n\n      if (fragmentEntity.body.type !== levelType) {\n        return false;\n      }\n\n      if (!fragmentEntity.buffered) {\n        return false;\n      }\n\n      var frag = fragmentEntity.body;\n      return frag.startPTS <= position && position <= frag.endPTS;\n    });\n\n    if (bufferedFrags.length === 0) {\n      return null;\n    } else {\n      // https://github.com/video-dev/hls.js/pull/1545#discussion_r166229566\n      var bufferedFragKey = bufferedFrags.pop();\n      return fragments[bufferedFragKey].body;\n    }\n  }\n  /**\n   * Partial fragments effected by coded frame eviction will be removed\n   * The browser will unload parts of the buffer to free up memory for new buffer data\n   * Fragments will need to be reloaded when the buffer is freed up, removing partial fragments will allow them to reload(since there might be parts that are still playable)\n   * @param {String} elementaryStream The elementaryStream of media this is (eg. video/audio)\n   * @param {TimeRanges} timeRange TimeRange object from a sourceBuffer\n   */\n  ;\n\n  _proto.detectEvictedFragments = function detectEvictedFragments(elementaryStream, timeRange) {\n    var _this2 = this;\n\n    // Check if any flagged fragments have been unloaded\n    Object.keys(this.fragments).forEach(function (key) {\n      var fragmentEntity = _this2.fragments[key];\n\n      if (!fragmentEntity || !fragmentEntity.buffered) {\n        return;\n      }\n\n      var esData = fragmentEntity.range[elementaryStream];\n\n      if (!esData) {\n        return;\n      }\n\n      var fragmentTimes = esData.time;\n\n      for (var i = 0; i < fragmentTimes.length; i++) {\n        var time = fragmentTimes[i];\n\n        if (!_this2.isTimeBuffered(time.startPTS, time.endPTS, timeRange)) {\n          // Unregister partial fragment as it needs to load again to be reused\n          _this2.removeFragment(fragmentEntity.body);\n\n          break;\n        }\n      }\n    });\n  }\n  /**\n   * Checks if the fragment passed in is loaded in the buffer properly\n   * Partially loaded fragments will be registered as a partial fragment\n   * @param {Object} fragment Check the fragment against all sourceBuffers loaded\n   */\n  ;\n\n  _proto.detectPartialFragments = function detectPartialFragments(fragment) {\n    var _this3 = this;\n\n    var fragKey = this.getFragmentKey(fragment);\n    var fragmentEntity = this.fragments[fragKey];\n\n    if (fragmentEntity) {\n      fragmentEntity.buffered = true;\n      Object.keys(this.timeRanges).forEach(function (elementaryStream) {\n        if (fragment.hasElementaryStream(elementaryStream)) {\n          var timeRange = _this3.timeRanges[elementaryStream]; // Check for malformed fragments\n          // Gaps need to be calculated for each elementaryStream\n\n          fragmentEntity.range[elementaryStream] = _this3.getBufferedTimes(fragment.startPTS, fragment.endPTS, timeRange);\n        }\n      });\n    }\n  };\n\n  _proto.getBufferedTimes = function getBufferedTimes(startPTS, endPTS, timeRange) {\n    var fragmentTimes = [];\n    var startTime, endTime;\n    var fragmentPartial = false;\n\n    for (var i = 0; i < timeRange.length; i++) {\n      startTime = timeRange.start(i) - this.bufferPadding;\n      endTime = timeRange.end(i) + this.bufferPadding;\n\n      if (startPTS >= startTime && endPTS <= endTime) {\n        // Fragment is entirely contained in buffer\n        // No need to check the other timeRange times since it's completely playable\n        fragmentTimes.push({\n          startPTS: Math.max(startPTS, timeRange.start(i)),\n          endPTS: Math.min(endPTS, timeRange.end(i))\n        });\n        break;\n      } else if (startPTS < endTime && endPTS > startTime) {\n        // Check for intersection with buffer\n        // Get playable sections of the fragment\n        fragmentTimes.push({\n          startPTS: Math.max(startPTS, timeRange.start(i)),\n          endPTS: Math.min(endPTS, timeRange.end(i))\n        });\n        fragmentPartial = true;\n      } else if (endPTS <= startTime) {\n        // No need to check the rest of the timeRange as it is in order\n        break;\n      }\n    }\n\n    return {\n      time: fragmentTimes,\n      partial: fragmentPartial\n    };\n  };\n\n  _proto.getFragmentKey = function getFragmentKey(fragment) {\n    return fragment.type + \"_\" + fragment.level + \"_\" + fragment.urlId + \"_\" + fragment.sn;\n  }\n  /**\n   * Gets the partial fragment for a certain time\n   * @param {Number} time\n   * @returns {Object} fragment Returns a partial fragment at a time or null if there is no partial fragment\n   */\n  ;\n\n  _proto.getPartialFragment = function getPartialFragment(time) {\n    var _this4 = this;\n\n    var timePadding, startTime, endTime;\n    var bestFragment = null;\n    var bestOverlap = 0;\n    Object.keys(this.fragments).forEach(function (key) {\n      var fragmentEntity = _this4.fragments[key];\n\n      if (_this4.isPartial(fragmentEntity)) {\n        startTime = fragmentEntity.body.startPTS - _this4.bufferPadding;\n        endTime = fragmentEntity.body.endPTS + _this4.bufferPadding;\n\n        if (time >= startTime && time <= endTime) {\n          // Use the fragment that has the most padding from start and end time\n          timePadding = Math.min(time - startTime, endTime - time);\n\n          if (bestOverlap <= timePadding) {\n            bestFragment = fragmentEntity.body;\n            bestOverlap = timePadding;\n          }\n        }\n      }\n    });\n    return bestFragment;\n  }\n  /**\n   * @param {Object} fragment The fragment to check\n   * @returns {String} Returns the fragment state when a fragment never loaded or if it partially loaded\n   */\n  ;\n\n  _proto.getState = function getState(fragment) {\n    var fragKey = this.getFragmentKey(fragment);\n    var fragmentEntity = this.fragments[fragKey];\n    var state = FragmentState.NOT_LOADED;\n\n    if (fragmentEntity !== undefined) {\n      if (!fragmentEntity.buffered) {\n        state = FragmentState.APPENDING;\n      } else if (this.isPartial(fragmentEntity) === true) {\n        state = FragmentState.PARTIAL;\n      } else {\n        state = FragmentState.OK;\n      }\n    }\n\n    return state;\n  };\n\n  _proto.isPartial = function isPartial(fragmentEntity) {\n    return fragmentEntity.buffered === true && (fragmentEntity.range.video !== undefined && fragmentEntity.range.video.partial === true || fragmentEntity.range.audio !== undefined && fragmentEntity.range.audio.partial === true);\n  };\n\n  _proto.isTimeBuffered = function isTimeBuffered(startPTS, endPTS, timeRange) {\n    var startTime, endTime;\n\n    for (var i = 0; i < timeRange.length; i++) {\n      startTime = timeRange.start(i) - this.bufferPadding;\n      endTime = timeRange.end(i) + this.bufferPadding;\n\n      if (startPTS >= startTime && endPTS <= endTime) {\n        return true;\n      }\n\n      if (endPTS <= startTime) {\n        // No need to check the rest of the timeRange as it is in order\n        return false;\n      }\n    }\n\n    return false;\n  }\n  /**\n   * Fires when a fragment loading is completed\n   */\n  ;\n\n  _proto.onFragLoaded = function onFragLoaded(e) {\n    var fragment = e.frag; // don't track initsegment (for which sn is not a number)\n    // don't track frags used for bitrateTest, they're irrelevant.\n\n    if (!Object(number_isFinite[\"isFiniteNumber\"])(fragment.sn) || fragment.bitrateTest) {\n      return;\n    }\n\n    this.fragments[this.getFragmentKey(fragment)] = {\n      body: fragment,\n      range: Object.create(null),\n      buffered: false\n    };\n  }\n  /**\n   * Fires when the buffer is updated\n   */\n  ;\n\n  _proto.onBufferAppended = function onBufferAppended(e) {\n    var _this5 = this;\n\n    // Store the latest timeRanges loaded in the buffer\n    this.timeRanges = e.timeRanges;\n    Object.keys(this.timeRanges).forEach(function (elementaryStream) {\n      var timeRange = _this5.timeRanges[elementaryStream];\n\n      _this5.detectEvictedFragments(elementaryStream, timeRange);\n    });\n  }\n  /**\n   * Fires after a fragment has been loaded into the source buffer\n   */\n  ;\n\n  _proto.onFragBuffered = function onFragBuffered(e) {\n    this.detectPartialFragments(e.frag);\n  }\n  /**\n   * Return true if fragment tracker has the fragment.\n   * @param {Object} fragment\n   * @returns {boolean}\n   */\n  ;\n\n  _proto.hasFragment = function hasFragment(fragment) {\n    var fragKey = this.getFragmentKey(fragment);\n    return this.fragments[fragKey] !== undefined;\n  }\n  /**\n   * Remove a fragment from fragment tracker until it is loaded again\n   * @param {Object} fragment The fragment to remove\n   */\n  ;\n\n  _proto.removeFragment = function removeFragment(fragment) {\n    var fragKey = this.getFragmentKey(fragment);\n    delete this.fragments[fragKey];\n  }\n  /**\n   * Remove all fragments from fragment tracker.\n   */\n  ;\n\n  _proto.removeAllFragments = function removeAllFragments() {\n    this.fragments = Object.create(null);\n  };\n\n  return FragmentTracker;\n}(event_handler);\n// CONCATENATED MODULE: ./src/utils/binary-search.ts\nvar BinarySearch = {\n  /**\n   * Searches for an item in an array which matches a certain condition.\n   * This requires the condition to only match one item in the array,\n   * and for the array to be ordered.\n   *\n   * @param {Array<T>} list The array to search.\n   * @param {BinarySearchComparison<T>} comparisonFn\n   *      Called and provided a candidate item as the first argument.\n   *      Should return:\n   *          > -1 if the item should be located at a lower index than the provided item.\n   *          > 1 if the item should be located at a higher index than the provided item.\n   *          > 0 if the item is the item you're looking for.\n   *\n   * @return {T | null} The object if it is found or null otherwise.\n   */\n  search: function search(list, comparisonFn) {\n    var minIndex = 0;\n    var maxIndex = list.length - 1;\n    var currentIndex = null;\n    var currentElement = null;\n\n    while (minIndex <= maxIndex) {\n      currentIndex = (minIndex + maxIndex) / 2 | 0;\n      currentElement = list[currentIndex];\n      var comparisonResult = comparisonFn(currentElement);\n\n      if (comparisonResult > 0) {\n        minIndex = currentIndex + 1;\n      } else if (comparisonResult < 0) {\n        maxIndex = currentIndex - 1;\n      } else {\n        return currentElement;\n      }\n    }\n\n    return null;\n  }\n};\n/* harmony default export */ var binary_search = (BinarySearch);\n// CONCATENATED MODULE: ./src/utils/buffer-helper.ts\n/**\n * @module BufferHelper\n *\n * Providing methods dealing with buffer length retrieval for example.\n *\n * In general, a helper around HTML5 MediaElement TimeRanges gathered from `buffered` property.\n *\n * Also @see https://developer.mozilla.org/en-US/docs/Web/API/HTMLMediaElement/buffered\n*/\nvar BufferHelper = /*#__PURE__*/function () {\n  function BufferHelper() {}\n\n  /**\n   * Return true if `media`'s buffered include `position`\n   * @param {Bufferable} media\n   * @param {number} position\n   * @returns {boolean}\n   */\n  BufferHelper.isBuffered = function isBuffered(media, position) {\n    try {\n      if (media) {\n        var buffered = media.buffered;\n\n        for (var i = 0; i < buffered.length; i++) {\n          if (position >= buffered.start(i) && position <= buffered.end(i)) {\n            return true;\n          }\n        }\n      }\n    } catch (error) {// this is to catch\n      // InvalidStateError: Failed to read the 'buffered' property from 'SourceBuffer':\n      // This SourceBuffer has been removed from the parent media source\n    }\n\n    return false;\n  };\n\n  BufferHelper.bufferInfo = function bufferInfo(media, pos, maxHoleDuration) {\n    try {\n      if (media) {\n        var vbuffered = media.buffered;\n        var buffered = [];\n        var i;\n\n        for (i = 0; i < vbuffered.length; i++) {\n          buffered.push({\n            start: vbuffered.start(i),\n            end: vbuffered.end(i)\n          });\n        }\n\n        return this.bufferedInfo(buffered, pos, maxHoleDuration);\n      }\n    } catch (error) {// this is to catch\n      // InvalidStateError: Failed to read the 'buffered' property from 'SourceBuffer':\n      // This SourceBuffer has been removed from the parent media source\n    }\n\n    return {\n      len: 0,\n      start: pos,\n      end: pos,\n      nextStart: undefined\n    };\n  };\n\n  BufferHelper.bufferedInfo = function bufferedInfo(buffered, pos, maxHoleDuration) {\n    // sort on buffer.start/smaller end (IE does not always return sorted buffered range)\n    buffered.sort(function (a, b) {\n      var diff = a.start - b.start;\n\n      if (diff) {\n        return diff;\n      } else {\n        return b.end - a.end;\n      }\n    });\n    var buffered2 = [];\n\n    if (maxHoleDuration) {\n      // there might be some small holes between buffer time range\n      // consider that holes smaller than maxHoleDuration are irrelevant and build another\n      // buffer time range representations that discards those holes\n      for (var i = 0; i < buffered.length; i++) {\n        var buf2len = buffered2.length;\n\n        if (buf2len) {\n          var buf2end = buffered2[buf2len - 1].end; // if small hole (value between 0 or maxHoleDuration ) or overlapping (negative)\n\n          if (buffered[i].start - buf2end < maxHoleDuration) {\n            // merge overlapping time ranges\n            // update lastRange.end only if smaller than item.end\n            // e.g.  [ 1, 15] with  [ 2,8] => [ 1,15] (no need to modify lastRange.end)\n            // whereas [ 1, 8] with  [ 2,15] => [ 1,15] ( lastRange should switch from [1,8] to [1,15])\n            if (buffered[i].end > buf2end) {\n              buffered2[buf2len - 1].end = buffered[i].end;\n            }\n          } else {\n            // big hole\n            buffered2.push(buffered[i]);\n          }\n        } else {\n          // first value\n          buffered2.push(buffered[i]);\n        }\n      }\n    } else {\n      buffered2 = buffered;\n    }\n\n    var bufferLen = 0; // bufferStartNext can possibly be undefined based on the conditional logic below\n\n    var bufferStartNext; // bufferStart and bufferEnd are buffer boundaries around current video position\n\n    var bufferStart = pos;\n    var bufferEnd = pos;\n\n    for (var _i = 0; _i < buffered2.length; _i++) {\n      var start = buffered2[_i].start,\n          end = buffered2[_i].end; // logger.log('buf start/end:' + buffered.start(i) + '/' + buffered.end(i));\n\n      if (pos + maxHoleDuration >= start && pos < end) {\n        // play position is inside this buffer TimeRange, retrieve end of buffer position and buffer length\n        bufferStart = start;\n        bufferEnd = end;\n        bufferLen = bufferEnd - pos;\n      } else if (pos + maxHoleDuration < start) {\n        bufferStartNext = start;\n        break;\n      }\n    }\n\n    return {\n      len: bufferLen,\n      start: bufferStart,\n      end: bufferEnd,\n      nextStart: bufferStartNext\n    };\n  };\n\n  return BufferHelper;\n}();\n// EXTERNAL MODULE: ./node_modules/eventemitter3/index.js\nvar eventemitter3 = __webpack_require__(\"./node_modules/eventemitter3/index.js\");\n\n// EXTERNAL MODULE: ./node_modules/webworkify-webpack/index.js\nvar webworkify_webpack = __webpack_require__(\"./node_modules/webworkify-webpack/index.js\");\n\n// EXTERNAL MODULE: ./src/demux/demuxer-inline.js + 12 modules\nvar demuxer_inline = __webpack_require__(\"./src/demux/demuxer-inline.js\");\n\n// CONCATENATED MODULE: ./src/utils/mediasource-helper.ts\n/**\n * MediaSource helper\n */\nfunction getMediaSource() {\n  return window.MediaSource || window.WebKitMediaSource;\n}\n// EXTERNAL MODULE: ./src/utils/get-self-scope.js\nvar get_self_scope = __webpack_require__(\"./src/utils/get-self-scope.js\");\n\n// CONCATENATED MODULE: ./src/observer.ts\nfunction observer_inheritsLoose(subClass, superClass) { subClass.prototype = Object.create(superClass.prototype); subClass.prototype.constructor = subClass; subClass.__proto__ = superClass; }\n\n\n/**\n * Simple adapter sub-class of Nodejs-like EventEmitter.\n */\n\nvar Observer = /*#__PURE__*/function (_EventEmitter) {\n  observer_inheritsLoose(Observer, _EventEmitter);\n\n  function Observer() {\n    return _EventEmitter.apply(this, arguments) || this;\n  }\n\n  var _proto = Observer.prototype;\n\n  /**\n   * We simply want to pass along the event-name itself\n   * in every call to a handler, which is the purpose of our `trigger` method\n   * extending the standard API.\n   */\n  _proto.trigger = function trigger(event) {\n    for (var _len = arguments.length, data = new Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) {\n      data[_key - 1] = arguments[_key];\n    }\n\n    this.emit.apply(this, [event, event].concat(data));\n  };\n\n  return Observer;\n}(eventemitter3[\"EventEmitter\"]);\n// CONCATENATED MODULE: ./src/demux/demuxer.js\n\n\n\n\n\n\n\n\n\n // see https://stackoverflow.com/a/11237259/589493\n\nvar global = Object(get_self_scope[\"getSelfScope\"])(); // safeguard for code that might run both on worker and main thread\n\nvar demuxer_MediaSource = getMediaSource() || {\n  isTypeSupported: function isTypeSupported() {\n    return false;\n  }\n};\n\nvar demuxer_Demuxer = /*#__PURE__*/function () {\n  function Demuxer(hls, id) {\n    var _this = this;\n\n    this.hls = hls;\n    this.id = id;\n    var observer = this.observer = new Observer();\n    var config = hls.config;\n\n    var forwardMessage = function forwardMessage(ev, data) {\n      data = data || {};\n      data.frag = _this.frag;\n      data.id = _this.id;\n      hls.trigger(ev, data);\n    }; // forward events to main thread\n\n\n    observer.on(events[\"default\"].FRAG_DECRYPTED, forwardMessage);\n    observer.on(events[\"default\"].FRAG_PARSING_INIT_SEGMENT, forwardMessage);\n    observer.on(events[\"default\"].FRAG_PARSING_DATA, forwardMessage);\n    observer.on(events[\"default\"].FRAG_PARSED, forwardMessage);\n    observer.on(events[\"default\"].ERROR, forwardMessage);\n    observer.on(events[\"default\"].FRAG_PARSING_METADATA, forwardMessage);\n    observer.on(events[\"default\"].FRAG_PARSING_USERDATA, forwardMessage);\n    observer.on(events[\"default\"].INIT_PTS_FOUND, forwardMessage);\n    var typeSupported = {\n      mp4: demuxer_MediaSource.isTypeSupported('video/mp4'),\n      mpeg: demuxer_MediaSource.isTypeSupported('audio/mpeg'),\n      mp3: demuxer_MediaSource.isTypeSupported('audio/mp4; codecs=\"mp3\"')\n    }; // navigator.vendor is not always available in Web Worker\n    // refer to https://developer.mozilla.org/en-US/docs/Web/API/WorkerGlobalScope/navigator\n\n    var vendor = navigator.vendor;\n\n    if (config.enableWorker && typeof Worker !== 'undefined') {\n      logger[\"logger\"].log('demuxing in webworker');\n      var w;\n\n      try {\n        w = this.w = webworkify_webpack(/*require.resolve*/(/*! ../demux/demuxer-worker.js */ \"./src/demux/demuxer-worker.js\"));\n        this.onwmsg = this.onWorkerMessage.bind(this);\n        w.addEventListener('message', this.onwmsg);\n\n        w.onerror = function (event) {\n          hls.trigger(events[\"default\"].ERROR, {\n            type: errors[\"ErrorTypes\"].OTHER_ERROR,\n            details: errors[\"ErrorDetails\"].INTERNAL_EXCEPTION,\n            fatal: true,\n            event: 'demuxerWorker',\n            err: {\n              message: event.message + ' (' + event.filename + ':' + event.lineno + ')'\n            }\n          });\n        };\n\n        w.postMessage({\n          cmd: 'init',\n          typeSupported: typeSupported,\n          vendor: vendor,\n          id: id,\n          config: JSON.stringify(config)\n        });\n      } catch (err) {\n        logger[\"logger\"].warn('Error in worker:', err);\n        logger[\"logger\"].error('Error while initializing DemuxerWorker, fallback on DemuxerInline');\n\n        if (w) {\n          // revoke the Object URL that was used to create demuxer worker, so as not to leak it\n          global.URL.revokeObjectURL(w.objectURL);\n        }\n\n        this.demuxer = new demuxer_inline[\"default\"](observer, typeSupported, config, vendor);\n        this.w = undefined;\n      }\n    } else {\n      this.demuxer = new demuxer_inline[\"default\"](observer, typeSupported, config, vendor);\n    }\n  }\n\n  var _proto = Demuxer.prototype;\n\n  _proto.destroy = function destroy() {\n    var w = this.w;\n\n    if (w) {\n      w.removeEventListener('message', this.onwmsg);\n      w.terminate();\n      this.w = null;\n    } else {\n      var demuxer = this.demuxer;\n\n      if (demuxer) {\n        demuxer.destroy();\n        this.demuxer = null;\n      }\n    }\n\n    var observer = this.observer;\n\n    if (observer) {\n      observer.removeAllListeners();\n      this.observer = null;\n    }\n  };\n\n  _proto.push = function push(data, initSegment, audioCodec, videoCodec, frag, duration, accurateTimeOffset, defaultInitPTS) {\n    var w = this.w;\n    var timeOffset = Object(number_isFinite[\"isFiniteNumber\"])(frag.startPTS) ? frag.startPTS : frag.start;\n    var decryptdata = frag.decryptdata;\n    var lastFrag = this.frag;\n    var discontinuity = !(lastFrag && frag.cc === lastFrag.cc);\n    var trackSwitch = !(lastFrag && frag.level === lastFrag.level);\n    var nextSN = lastFrag && frag.sn === lastFrag.sn + 1;\n    var contiguous = !trackSwitch && nextSN;\n\n    if (discontinuity) {\n      logger[\"logger\"].log(this.id + \":discontinuity detected\");\n    }\n\n    if (trackSwitch) {\n      logger[\"logger\"].log(this.id + \":switch detected\");\n    }\n\n    this.frag = frag;\n\n    if (w) {\n      // post fragment payload as transferable objects for ArrayBuffer (no copy)\n      w.postMessage({\n        cmd: 'demux',\n        data: data,\n        decryptdata: decryptdata,\n        initSegment: initSegment,\n        audioCodec: audioCodec,\n        videoCodec: videoCodec,\n        timeOffset: timeOffset,\n        discontinuity: discontinuity,\n        trackSwitch: trackSwitch,\n        contiguous: contiguous,\n        duration: duration,\n        accurateTimeOffset: accurateTimeOffset,\n        defaultInitPTS: defaultInitPTS\n      }, data instanceof ArrayBuffer ? [data] : []);\n    } else {\n      var demuxer = this.demuxer;\n\n      if (demuxer) {\n        demuxer.push(data, decryptdata, initSegment, audioCodec, videoCodec, timeOffset, discontinuity, trackSwitch, contiguous, duration, accurateTimeOffset, defaultInitPTS);\n      }\n    }\n  };\n\n  _proto.onWorkerMessage = function onWorkerMessage(ev) {\n    var data = ev.data,\n        hls = this.hls;\n\n    switch (data.event) {\n      case 'init':\n        // revoke the Object URL that was used to create demuxer worker, so as not to leak it\n        global.URL.revokeObjectURL(this.w.objectURL);\n        break;\n      // special case for FRAG_PARSING_DATA: data1 and data2 are transferable objects\n\n      case events[\"default\"].FRAG_PARSING_DATA:\n        data.data.data1 = new Uint8Array(data.data1);\n\n        if (data.data2) {\n          data.data.data2 = new Uint8Array(data.data2);\n        }\n\n      /* falls through */\n\n      default:\n        data.data = data.data || {};\n        data.data.frag = this.frag;\n        data.data.id = this.id;\n        hls.trigger(data.event, data.data);\n        break;\n    }\n  };\n\n  return Demuxer;\n}();\n\n/* harmony default export */ var demux_demuxer = (demuxer_Demuxer);\n// CONCATENATED MODULE: ./src/controller/level-helper.js\n\n\n\n\n\n/**\n * @module LevelHelper\n *\n * Providing methods dealing with playlist sliding and drift\n *\n * TODO: Create an actual `Level` class/model that deals with all this logic in an object-oriented-manner.\n *\n * */\n\nfunction addGroupId(level, type, id) {\n  switch (type) {\n    case 'audio':\n      if (!level.audioGroupIds) {\n        level.audioGroupIds = [];\n      }\n\n      level.audioGroupIds.push(id);\n      break;\n\n    case 'text':\n      if (!level.textGroupIds) {\n        level.textGroupIds = [];\n      }\n\n      level.textGroupIds.push(id);\n      break;\n  }\n}\nfunction updatePTS(fragments, fromIdx, toIdx) {\n  var fragFrom = fragments[fromIdx],\n      fragTo = fragments[toIdx],\n      fragToPTS = fragTo.startPTS; // if we know startPTS[toIdx]\n\n  if (Object(number_isFinite[\"isFiniteNumber\"])(fragToPTS)) {\n    // update fragment duration.\n    // it helps to fix drifts between playlist reported duration and fragment real duration\n    if (toIdx > fromIdx) {\n      fragFrom.duration = fragToPTS - fragFrom.start;\n\n      if (fragFrom.duration < 0) {\n        logger[\"logger\"].warn(\"negative duration computed for frag \" + fragFrom.sn + \",level \" + fragFrom.level + \", there should be some duration drift between playlist and fragment!\");\n      }\n    } else {\n      fragTo.duration = fragFrom.start - fragToPTS;\n\n      if (fragTo.duration < 0) {\n        logger[\"logger\"].warn(\"negative duration computed for frag \" + fragTo.sn + \",level \" + fragTo.level + \", there should be some duration drift between playlist and fragment!\");\n      }\n    }\n  } else {\n    // we dont know startPTS[toIdx]\n    if (toIdx > fromIdx) {\n      fragTo.start = fragFrom.start + fragFrom.duration;\n    } else {\n      fragTo.start = Math.max(fragFrom.start - fragTo.duration, 0);\n    }\n  }\n}\nfunction updateFragPTSDTS(details, frag, startPTS, endPTS, startDTS, endDTS) {\n  // update frag PTS/DTS\n  var maxStartPTS = startPTS;\n\n  if (Object(number_isFinite[\"isFiniteNumber\"])(frag.startPTS)) {\n    // delta PTS between audio and video\n    var deltaPTS = Math.abs(frag.startPTS - startPTS);\n\n    if (!Object(number_isFinite[\"isFiniteNumber\"])(frag.deltaPTS)) {\n      frag.deltaPTS = deltaPTS;\n    } else {\n      frag.deltaPTS = Math.max(deltaPTS, frag.deltaPTS);\n    }\n\n    maxStartPTS = Math.max(startPTS, frag.startPTS);\n    startPTS = Math.min(startPTS, frag.startPTS);\n    endPTS = Math.max(endPTS, frag.endPTS);\n    startDTS = Math.min(startDTS, frag.startDTS);\n    endDTS = Math.max(endDTS, frag.endDTS);\n  }\n\n  var drift = startPTS - frag.start;\n  frag.start = frag.startPTS = startPTS;\n  frag.maxStartPTS = maxStartPTS;\n  frag.endPTS = endPTS;\n  frag.startDTS = startDTS;\n  frag.endDTS = endDTS;\n  frag.duration = endPTS - startPTS;\n  var sn = frag.sn; // exit if sn out of range\n\n  if (!details || sn < details.startSN || sn > details.endSN) {\n    return 0;\n  }\n\n  var fragIdx, fragments, i;\n  fragIdx = sn - details.startSN;\n  fragments = details.fragments; // update frag reference in fragments array\n  // rationale is that fragments array might not contain this frag object.\n  // this will happen if playlist has been refreshed between frag loading and call to updateFragPTSDTS()\n  // if we don't update frag, we won't be able to propagate PTS info on the playlist\n  // resulting in invalid sliding computation\n\n  fragments[fragIdx] = frag; // adjust fragment PTS/duration from seqnum-1 to frag 0\n\n  for (i = fragIdx; i > 0; i--) {\n    updatePTS(fragments, i, i - 1);\n  } // adjust fragment PTS/duration from seqnum to last frag\n\n\n  for (i = fragIdx; i < fragments.length - 1; i++) {\n    updatePTS(fragments, i, i + 1);\n  }\n\n  details.PTSKnown = true;\n  return drift;\n}\nfunction mergeDetails(oldDetails, newDetails) {\n  // potentially retrieve cached initsegment\n  if (newDetails.initSegment && oldDetails.initSegment) {\n    newDetails.initSegment = oldDetails.initSegment;\n  } // check if old/new playlists have fragments in common\n  // loop through overlapping SN and update startPTS , cc, and duration if any found\n\n\n  var ccOffset = 0;\n  var PTSFrag;\n  mapFragmentIntersection(oldDetails, newDetails, function (oldFrag, newFrag) {\n    ccOffset = oldFrag.cc - newFrag.cc;\n\n    if (Object(number_isFinite[\"isFiniteNumber\"])(oldFrag.startPTS)) {\n      newFrag.start = newFrag.startPTS = oldFrag.startPTS;\n      newFrag.endPTS = oldFrag.endPTS;\n      newFrag.duration = oldFrag.duration;\n      newFrag.backtracked = oldFrag.backtracked;\n      newFrag.dropped = oldFrag.dropped;\n      PTSFrag = newFrag;\n    } // PTS is known when there are overlapping segments\n\n\n    newDetails.PTSKnown = true;\n  });\n\n  if (!newDetails.PTSKnown) {\n    return;\n  }\n\n  if (ccOffset) {\n    logger[\"logger\"].log('discontinuity sliding from playlist, take drift into account');\n    var newFragments = newDetails.fragments;\n\n    for (var i = 0; i < newFragments.length; i++) {\n      newFragments[i].cc += ccOffset;\n    }\n  } // if at least one fragment contains PTS info, recompute PTS information for all fragments\n\n\n  if (PTSFrag) {\n    updateFragPTSDTS(newDetails, PTSFrag, PTSFrag.startPTS, PTSFrag.endPTS, PTSFrag.startDTS, PTSFrag.endDTS);\n  } else {\n    // ensure that delta is within oldFragments range\n    // also adjust sliding in case delta is 0 (we could have old=[50-60] and new=old=[50-61])\n    // in that case we also need to adjust start offset of all fragments\n    adjustSliding(oldDetails, newDetails);\n  } // if we are here, it means we have fragments overlapping between\n  // old and new level. reliable PTS info is thus relying on old level\n\n\n  newDetails.PTSKnown = oldDetails.PTSKnown;\n}\nfunction mergeSubtitlePlaylists(oldPlaylist, newPlaylist, referenceStart) {\n  if (referenceStart === void 0) {\n    referenceStart = 0;\n  }\n\n  var lastIndex = -1;\n  mapFragmentIntersection(oldPlaylist, newPlaylist, function (oldFrag, newFrag, index) {\n    newFrag.start = oldFrag.start;\n    lastIndex = index;\n  });\n  var frags = newPlaylist.fragments;\n\n  if (lastIndex < 0) {\n    frags.forEach(function (frag) {\n      frag.start += referenceStart;\n    });\n    return;\n  }\n\n  for (var i = lastIndex + 1; i < frags.length; i++) {\n    frags[i].start = frags[i - 1].start + frags[i - 1].duration;\n  }\n}\nfunction mapFragmentIntersection(oldPlaylist, newPlaylist, intersectionFn) {\n  if (!oldPlaylist || !newPlaylist) {\n    return;\n  }\n\n  var start = Math.max(oldPlaylist.startSN, newPlaylist.startSN) - newPlaylist.startSN;\n  var end = Math.min(oldPlaylist.endSN, newPlaylist.endSN) - newPlaylist.startSN;\n  var delta = newPlaylist.startSN - oldPlaylist.startSN;\n\n  for (var i = start; i <= end; i++) {\n    var oldFrag = oldPlaylist.fragments[delta + i];\n    var newFrag = newPlaylist.fragments[i];\n\n    if (!oldFrag || !newFrag) {\n      break;\n    }\n\n    intersectionFn(oldFrag, newFrag, i);\n  }\n}\nfunction adjustSliding(oldPlaylist, newPlaylist) {\n  var delta = newPlaylist.startSN - oldPlaylist.startSN;\n  var oldFragments = oldPlaylist.fragments;\n  var newFragments = newPlaylist.fragments;\n\n  if (delta < 0 || delta > oldFragments.length) {\n    return;\n  }\n\n  for (var i = 0; i < newFragments.length; i++) {\n    newFragments[i].start += oldFragments[delta].start;\n  }\n}\nfunction computeReloadInterval(currentPlaylist, newPlaylist, lastRequestTime) {\n  var reloadInterval = 1000 * (newPlaylist.averagetargetduration ? newPlaylist.averagetargetduration : newPlaylist.targetduration);\n  var minReloadInterval = reloadInterval / 2;\n\n  if (currentPlaylist && newPlaylist.endSN === currentPlaylist.endSN) {\n    // follow HLS Spec, If the client reloads a Playlist file and finds that it has not\n    // changed then it MUST wait for a period of one-half the target\n    // duration before retrying.\n    reloadInterval = minReloadInterval;\n  }\n\n  if (lastRequestTime) {\n    reloadInterval = Math.max(minReloadInterval, reloadInterval - (window.performance.now() - lastRequestTime));\n  } // in any case, don't reload more than half of target duration\n\n\n  return Math.round(reloadInterval);\n}\n// CONCATENATED MODULE: ./src/utils/time-ranges.ts\n/**\n *  TimeRanges to string helper\n */\nvar TimeRanges = {\n  toString: function toString(r) {\n    var log = '';\n    var len = r.length;\n\n    for (var i = 0; i < len; i++) {\n      log += '[' + r.start(i).toFixed(3) + ',' + r.end(i).toFixed(3) + ']';\n    }\n\n    return log;\n  }\n};\n/* harmony default export */ var time_ranges = (TimeRanges);\n// CONCATENATED MODULE: ./src/utils/discontinuities.js\n\n\n\nfunction findFirstFragWithCC(fragments, cc) {\n  var firstFrag = null;\n\n  for (var i = 0; i < fragments.length; i += 1) {\n    var currentFrag = fragments[i];\n\n    if (currentFrag && currentFrag.cc === cc) {\n      firstFrag = currentFrag;\n      break;\n    }\n  }\n\n  return firstFrag;\n}\nfunction findFragWithCC(fragments, CC) {\n  return binary_search.search(fragments, function (candidate) {\n    if (candidate.cc < CC) {\n      return 1;\n    } else if (candidate.cc > CC) {\n      return -1;\n    } else {\n      return 0;\n    }\n  });\n}\nfunction shouldAlignOnDiscontinuities(lastFrag, lastLevel, details) {\n  var shouldAlign = false;\n\n  if (lastLevel && lastLevel.details && details) {\n    if (details.endCC > details.startCC || lastFrag && lastFrag.cc < details.startCC) {\n      shouldAlign = true;\n    }\n  }\n\n  return shouldAlign;\n} // Find the first frag in the previous level which matches the CC of the first frag of the new level\n\nfunction findDiscontinuousReferenceFrag(prevDetails, curDetails) {\n  var prevFrags = prevDetails.fragments;\n  var curFrags = curDetails.fragments;\n\n  if (!curFrags.length || !prevFrags.length) {\n    logger[\"logger\"].log('No fragments to align');\n    return;\n  }\n\n  var prevStartFrag = findFirstFragWithCC(prevFrags, curFrags[0].cc);\n\n  if (!prevStartFrag || prevStartFrag && !prevStartFrag.startPTS) {\n    logger[\"logger\"].log('No frag in previous level to align on');\n    return;\n  }\n\n  return prevStartFrag;\n}\nfunction adjustPts(sliding, details) {\n  details.fragments.forEach(function (frag) {\n    if (frag) {\n      var start = frag.start + sliding;\n      frag.start = frag.startPTS = start;\n      frag.endPTS = start + frag.duration;\n    }\n  });\n  details.PTSKnown = true;\n}\n/**\n * Using the parameters of the last level, this function computes PTS' of the new fragments so that they form a\n * contiguous stream with the last fragments.\n * The PTS of a fragment lets Hls.js know where it fits into a stream - by knowing every PTS, we know which fragment to\n * download at any given time. PTS is normally computed when the fragment is demuxed, so taking this step saves us time\n * and an extra download.\n * @param lastFrag\n * @param lastLevel\n * @param details\n */\n\nfunction alignStream(lastFrag, lastLevel, details) {\n  alignDiscontinuities(lastFrag, details, lastLevel);\n\n  if (!details.PTSKnown && lastLevel) {\n    // If the PTS wasn't figured out via discontinuity sequence that means there was no CC increase within the level.\n    // Aligning via Program Date Time should therefore be reliable, since PDT should be the same within the same\n    // discontinuity sequence.\n    alignPDT(details, lastLevel.details);\n  }\n}\n/**\n * Computes the PTS if a new level's fragments using the PTS of a fragment in the last level which shares the same\n * discontinuity sequence.\n * @param lastLevel - The details of the last loaded level\n * @param details - The details of the new level\n */\n\nfunction alignDiscontinuities(lastFrag, details, lastLevel) {\n  if (shouldAlignOnDiscontinuities(lastFrag, lastLevel, details)) {\n    var referenceFrag = findDiscontinuousReferenceFrag(lastLevel.details, details);\n\n    if (referenceFrag) {\n      logger[\"logger\"].log('Adjusting PTS using last level due to CC increase within current level');\n      adjustPts(referenceFrag.start, details);\n    }\n  }\n}\n/**\n * Computes the PTS of a new level's fragments using the difference in Program Date Time from the last level.\n * @param details - The details of the new level\n * @param lastDetails - The details of the last loaded level\n */\n\nfunction alignPDT(details, lastDetails) {\n  if (lastDetails && lastDetails.fragments.length) {\n    if (!details.hasProgramDateTime || !lastDetails.hasProgramDateTime) {\n      return;\n    } // if last level sliding is 1000 and its first frag PROGRAM-DATE-TIME is 2017-08-20 1:10:00 AM\n    // and if new details first frag PROGRAM DATE-TIME is 2017-08-20 1:10:08 AM\n    // then we can deduce that playlist B sliding is 1000+8 = 1008s\n\n\n    var lastPDT = lastDetails.fragments[0].programDateTime;\n    var newPDT = details.fragments[0].programDateTime; // date diff is in ms. frag.start is in seconds\n\n    var sliding = (newPDT - lastPDT) / 1000 + lastDetails.fragments[0].start;\n\n    if (Object(number_isFinite[\"isFiniteNumber\"])(sliding)) {\n      logger[\"logger\"].log(\"adjusting PTS using programDateTime delta, sliding:\" + sliding.toFixed(3));\n      adjustPts(sliding, details);\n    }\n  }\n}\n// CONCATENATED MODULE: ./src/controller/fragment-finders.ts\n\n\n\n/**\n * Returns first fragment whose endPdt value exceeds the given PDT.\n * @param {Array<Fragment>} fragments - The array of candidate fragments\n * @param {number|null} [PDTValue = null] - The PDT value which must be exceeded\n * @param {number} [maxFragLookUpTolerance = 0] - The amount of time that a fragment's start/end can be within in order to be considered contiguous\n * @returns {*|null} fragment - The best matching fragment\n */\nfunction findFragmentByPDT(fragments, PDTValue, maxFragLookUpTolerance) {\n  if (PDTValue === null || !Array.isArray(fragments) || !fragments.length || !Object(number_isFinite[\"isFiniteNumber\"])(PDTValue)) {\n    return null;\n  } // if less than start\n\n\n  var startPDT = fragments[0].programDateTime;\n\n  if (PDTValue < (startPDT || 0)) {\n    return null;\n  }\n\n  var endPDT = fragments[fragments.length - 1].endProgramDateTime;\n\n  if (PDTValue >= (endPDT || 0)) {\n    return null;\n  }\n\n  maxFragLookUpTolerance = maxFragLookUpTolerance || 0;\n\n  for (var seg = 0; seg < fragments.length; ++seg) {\n    var frag = fragments[seg];\n\n    if (pdtWithinToleranceTest(PDTValue, maxFragLookUpTolerance, frag)) {\n      return frag;\n    }\n  }\n\n  return null;\n}\n/**\n * Finds a fragment based on the SN of the previous fragment; or based on the needs of the current buffer.\n * This method compensates for small buffer gaps by applying a tolerance to the start of any candidate fragment, thus\n * breaking any traps which would cause the same fragment to be continuously selected within a small range.\n * @param {*} fragPrevious - The last frag successfully appended\n * @param {Array<Fragment>} fragments - The array of candidate fragments\n * @param {number} [bufferEnd = 0] - The end of the contiguous buffered range the playhead is currently within\n * @param {number} maxFragLookUpTolerance - The amount of time that a fragment's start/end can be within in order to be considered contiguous\n * @returns {*} foundFrag - The best matching fragment\n */\n\nfunction findFragmentByPTS(fragPrevious, fragments, bufferEnd, maxFragLookUpTolerance) {\n  if (bufferEnd === void 0) {\n    bufferEnd = 0;\n  }\n\n  if (maxFragLookUpTolerance === void 0) {\n    maxFragLookUpTolerance = 0;\n  }\n\n  var fragNext = null;\n\n  if (fragPrevious) {\n    fragNext = fragments[fragPrevious.sn - fragments[0].sn + 1];\n  } else if (bufferEnd === 0 && fragments[0].start === 0) {\n    fragNext = fragments[0];\n  } // Prefer the next fragment if it's within tolerance\n\n\n  if (fragNext && fragment_finders_fragmentWithinToleranceTest(bufferEnd, maxFragLookUpTolerance, fragNext) === 0) {\n    return fragNext;\n  } // We might be seeking past the tolerance so find the best match\n\n\n  var foundFragment = binary_search.search(fragments, fragment_finders_fragmentWithinToleranceTest.bind(null, bufferEnd, maxFragLookUpTolerance));\n\n  if (foundFragment) {\n    return foundFragment;\n  } // If no match was found return the next fragment after fragPrevious, or null\n\n\n  return fragNext;\n}\n/**\n * The test function used by the findFragmentBySn's BinarySearch to look for the best match to the current buffer conditions.\n * @param {*} candidate - The fragment to test\n * @param {number} [bufferEnd = 0] - The end of the current buffered range the playhead is currently within\n * @param {number} [maxFragLookUpTolerance = 0] - The amount of time that a fragment's start can be within in order to be considered contiguous\n * @returns {number} - 0 if it matches, 1 if too low, -1 if too high\n */\n\nfunction fragment_finders_fragmentWithinToleranceTest(bufferEnd, maxFragLookUpTolerance, candidate) {\n  if (bufferEnd === void 0) {\n    bufferEnd = 0;\n  }\n\n  if (maxFragLookUpTolerance === void 0) {\n    maxFragLookUpTolerance = 0;\n  }\n\n  // offset should be within fragment boundary - config.maxFragLookUpTolerance\n  // this is to cope with situations like\n  // bufferEnd = 9.991\n  // frag[Ø] : [0,10]\n  // frag[1] : [10,20]\n  // bufferEnd is within frag[0] range ... although what we are expecting is to return frag[1] here\n  //              frag start               frag start+duration\n  //                  |-----------------------------|\n  //              <--->                         <--->\n  //  ...--------><-----------------------------><---------....\n  // previous frag         matching fragment         next frag\n  //  return -1             return 0                 return 1\n  // logger.log(`level/sn/start/end/bufEnd:${level}/${candidate.sn}/${candidate.start}/${(candidate.start+candidate.duration)}/${bufferEnd}`);\n  // Set the lookup tolerance to be small enough to detect the current segment - ensures we don't skip over very small segments\n  var candidateLookupTolerance = Math.min(maxFragLookUpTolerance, candidate.duration + (candidate.deltaPTS ? candidate.deltaPTS : 0));\n\n  if (candidate.start + candidate.duration - candidateLookupTolerance <= bufferEnd) {\n    return 1;\n  } else if (candidate.start - candidateLookupTolerance > bufferEnd && candidate.start) {\n    // if maxFragLookUpTolerance will have negative value then don't return -1 for first element\n    return -1;\n  }\n\n  return 0;\n}\n/**\n * The test function used by the findFragmentByPdt's BinarySearch to look for the best match to the current buffer conditions.\n * This function tests the candidate's program date time values, as represented in Unix time\n * @param {*} candidate - The fragment to test\n * @param {number} [pdtBufferEnd = 0] - The Unix time representing the end of the current buffered range\n * @param {number} [maxFragLookUpTolerance = 0] - The amount of time that a fragment's start can be within in order to be considered contiguous\n * @returns {boolean} True if contiguous, false otherwise\n */\n\nfunction pdtWithinToleranceTest(pdtBufferEnd, maxFragLookUpTolerance, candidate) {\n  var candidateLookupTolerance = Math.min(maxFragLookUpTolerance, candidate.duration + (candidate.deltaPTS ? candidate.deltaPTS : 0)) * 1000; // endProgramDateTime can be null, default to zero\n\n  var endProgramDateTime = candidate.endProgramDateTime || 0;\n  return endProgramDateTime - candidateLookupTolerance > pdtBufferEnd;\n}\n// CONCATENATED MODULE: ./src/controller/gap-controller.js\n\n\n\n\nvar STALL_MINIMUM_DURATION_MS = 250;\nvar MAX_START_GAP_JUMP = 2.0;\nvar SKIP_BUFFER_HOLE_STEP_SECONDS = 0.1;\nvar SKIP_BUFFER_RANGE_START = 0.05;\n\nvar gap_controller_GapController = /*#__PURE__*/function () {\n  function GapController(config, media, fragmentTracker, hls) {\n    this.config = config;\n    this.media = media;\n    this.fragmentTracker = fragmentTracker;\n    this.hls = hls;\n    this.nudgeRetry = 0;\n    this.stallReported = false;\n    this.stalled = null;\n    this.moved = false;\n    this.seeking = false;\n  }\n  /**\n   * Checks if the playhead is stuck within a gap, and if so, attempts to free it.\n   * A gap is an unbuffered range between two buffered ranges (or the start and the first buffered range).\n   *\n   * @param {number} lastCurrentTime Previously read playhead position\n   */\n\n\n  var _proto = GapController.prototype;\n\n  _proto.poll = function poll(lastCurrentTime) {\n    var config = this.config,\n        media = this.media,\n        stalled = this.stalled;\n    var currentTime = media.currentTime,\n        seeking = media.seeking;\n    var seeked = this.seeking && !seeking;\n    var beginSeek = !this.seeking && seeking;\n    this.seeking = seeking; // The playhead is moving, no-op\n\n    if (currentTime !== lastCurrentTime) {\n      this.moved = true;\n\n      if (stalled !== null) {\n        // The playhead is now moving, but was previously stalled\n        if (this.stallReported) {\n          var _stalledDuration = self.performance.now() - stalled;\n\n          logger[\"logger\"].warn(\"playback not stuck anymore @\" + currentTime + \", after \" + Math.round(_stalledDuration) + \"ms\");\n          this.stallReported = false;\n        }\n\n        this.stalled = null;\n        this.nudgeRetry = 0;\n      }\n\n      return;\n    } // Clear stalled state when beginning or finishing seeking so that we don't report stalls coming out of a seek\n\n\n    if (beginSeek || seeked) {\n      this.stalled = null;\n    } // The playhead should not be moving\n\n\n    if (media.paused || media.ended || media.playbackRate === 0 || !media.buffered.length) {\n      return;\n    }\n\n    var bufferInfo = BufferHelper.bufferInfo(media, currentTime, 0);\n    var isBuffered = bufferInfo.len > 0;\n    var nextStart = bufferInfo.nextStart || 0; // There is no playable buffer (waiting for buffer append)\n\n    if (!isBuffered && !nextStart) {\n      return;\n    }\n\n    if (seeking) {\n      // Waiting for seeking in a buffered range to complete\n      var hasEnoughBuffer = bufferInfo.len > MAX_START_GAP_JUMP; // Next buffered range is too far ahead to jump to while still seeking\n\n      var noBufferGap = !nextStart || nextStart - currentTime > MAX_START_GAP_JUMP && !this.fragmentTracker.getPartialFragment(currentTime);\n\n      if (hasEnoughBuffer || noBufferGap) {\n        return;\n      } // Reset moved state when seeking to a point in or before a gap\n\n\n      this.moved = false;\n    } // Skip start gaps if we haven't played, but the last poll detected the start of a stall\n    // The addition poll gives the browser a chance to jump the gap for us\n\n\n    if (!this.moved && this.stalled) {\n      // Jump start gaps within jump threshold\n      var startJump = Math.max(nextStart, bufferInfo.start || 0) - currentTime;\n\n      if (startJump > 0 && startJump <= MAX_START_GAP_JUMP) {\n        this._trySkipBufferHole(null);\n\n        return;\n      }\n    } // Start tracking stall time\n\n\n    var tnow = self.performance.now();\n\n    if (stalled === null) {\n      this.stalled = tnow;\n      return;\n    }\n\n    var stalledDuration = tnow - stalled;\n\n    if (!seeking && stalledDuration >= STALL_MINIMUM_DURATION_MS) {\n      // Report stalling after trying to fix\n      this._reportStall(bufferInfo.len);\n    }\n\n    var bufferedWithHoles = BufferHelper.bufferInfo(media, currentTime, config.maxBufferHole);\n\n    this._tryFixBufferStall(bufferedWithHoles, stalledDuration);\n  }\n  /**\n   * Detects and attempts to fix known buffer stalling issues.\n   * @param bufferInfo - The properties of the current buffer.\n   * @param stalledDurationMs - The amount of time Hls.js has been stalling for.\n   * @private\n   */\n  ;\n\n  _proto._tryFixBufferStall = function _tryFixBufferStall(bufferInfo, stalledDurationMs) {\n    var config = this.config,\n        fragmentTracker = this.fragmentTracker,\n        media = this.media;\n    var currentTime = media.currentTime;\n    var partial = fragmentTracker.getPartialFragment(currentTime);\n\n    if (partial) {\n      // Try to skip over the buffer hole caused by a partial fragment\n      // This method isn't limited by the size of the gap between buffered ranges\n      var targetTime = this._trySkipBufferHole(partial); // we return here in this case, meaning\n      // the branch below only executes when we don't handle a partial fragment\n\n\n      if (targetTime) {\n        return;\n      }\n    } // if we haven't had to skip over a buffer hole of a partial fragment\n    // we may just have to \"nudge\" the playlist as the browser decoding/rendering engine\n    // needs to cross some sort of threshold covering all source-buffers content\n    // to start playing properly.\n\n\n    if (bufferInfo.len > config.maxBufferHole && stalledDurationMs > config.highBufferWatchdogPeriod * 1000) {\n      logger[\"logger\"].warn('Trying to nudge playhead over buffer-hole'); // Try to nudge currentTime over a buffer hole if we've been stalling for the configured amount of seconds\n      // We only try to jump the hole if it's under the configured size\n      // Reset stalled so to rearm watchdog timer\n\n      this.stalled = null;\n\n      this._tryNudgeBuffer();\n    }\n  }\n  /**\n   * Triggers a BUFFER_STALLED_ERROR event, but only once per stall period.\n   * @param bufferLen - The playhead distance from the end of the current buffer segment.\n   * @private\n   */\n  ;\n\n  _proto._reportStall = function _reportStall(bufferLen) {\n    var hls = this.hls,\n        media = this.media,\n        stallReported = this.stallReported;\n\n    if (!stallReported) {\n      // Report stalled error once\n      this.stallReported = true;\n      logger[\"logger\"].warn(\"Playback stalling at @\" + media.currentTime + \" due to low buffer (buffer=\" + bufferLen + \")\");\n      hls.trigger(events[\"default\"].ERROR, {\n        type: errors[\"ErrorTypes\"].MEDIA_ERROR,\n        details: errors[\"ErrorDetails\"].BUFFER_STALLED_ERROR,\n        fatal: false,\n        buffer: bufferLen\n      });\n    }\n  }\n  /**\n   * Attempts to fix buffer stalls by jumping over known gaps caused by partial fragments\n   * @param partial - The partial fragment found at the current time (where playback is stalling).\n   * @private\n   */\n  ;\n\n  _proto._trySkipBufferHole = function _trySkipBufferHole(partial) {\n    var config = this.config,\n        hls = this.hls,\n        media = this.media;\n    var currentTime = media.currentTime;\n    var lastEndTime = 0; // Check if currentTime is between unbuffered regions of partial fragments\n\n    for (var i = 0; i < media.buffered.length; i++) {\n      var startTime = media.buffered.start(i);\n\n      if (currentTime + config.maxBufferHole >= lastEndTime && currentTime < startTime) {\n        var targetTime = Math.max(startTime + SKIP_BUFFER_RANGE_START, media.currentTime + SKIP_BUFFER_HOLE_STEP_SECONDS);\n        logger[\"logger\"].warn(\"skipping hole, adjusting currentTime from \" + currentTime + \" to \" + targetTime);\n        this.moved = true;\n        this.stalled = null;\n        media.currentTime = targetTime;\n\n        if (partial) {\n          hls.trigger(events[\"default\"].ERROR, {\n            type: errors[\"ErrorTypes\"].MEDIA_ERROR,\n            details: errors[\"ErrorDetails\"].BUFFER_SEEK_OVER_HOLE,\n            fatal: false,\n            reason: \"fragment loaded with buffer holes, seeking from \" + currentTime + \" to \" + targetTime,\n            frag: partial\n          });\n        }\n\n        return targetTime;\n      }\n\n      lastEndTime = media.buffered.end(i);\n    }\n\n    return 0;\n  }\n  /**\n   * Attempts to fix buffer stalls by advancing the mediaElement's current time by a small amount.\n   * @private\n   */\n  ;\n\n  _proto._tryNudgeBuffer = function _tryNudgeBuffer() {\n    var config = this.config,\n        hls = this.hls,\n        media = this.media;\n    var currentTime = media.currentTime;\n    var nudgeRetry = (this.nudgeRetry || 0) + 1;\n    this.nudgeRetry = nudgeRetry;\n\n    if (nudgeRetry < config.nudgeMaxRetry) {\n      var targetTime = currentTime + nudgeRetry * config.nudgeOffset; // playback stalled in buffered area ... let's nudge currentTime to try to overcome this\n\n      logger[\"logger\"].warn(\"Nudging 'currentTime' from \" + currentTime + \" to \" + targetTime);\n      media.currentTime = targetTime;\n      hls.trigger(events[\"default\"].ERROR, {\n        type: errors[\"ErrorTypes\"].MEDIA_ERROR,\n        details: errors[\"ErrorDetails\"].BUFFER_NUDGE_ON_STALL,\n        fatal: false\n      });\n    } else {\n      logger[\"logger\"].error(\"Playhead still not moving while enough data buffered @\" + currentTime + \" after \" + config.nudgeMaxRetry + \" nudges\");\n      hls.trigger(events[\"default\"].ERROR, {\n        type: errors[\"ErrorTypes\"].MEDIA_ERROR,\n        details: errors[\"ErrorDetails\"].BUFFER_STALLED_ERROR,\n        fatal: true\n      });\n    }\n  };\n\n  return GapController;\n}();\n\n\n// CONCATENATED MODULE: ./src/task-loop.ts\nfunction _assertThisInitialized(self) { if (self === void 0) { throw new ReferenceError(\"this hasn't been initialised - super() hasn't been called\"); } return self; }\n\nfunction task_loop_inheritsLoose(subClass, superClass) { subClass.prototype = Object.create(superClass.prototype); subClass.prototype.constructor = subClass; subClass.__proto__ = superClass; }\n\n\n\n/**\n * Sub-class specialization of EventHandler base class.\n *\n * TaskLoop allows to schedule a task function being called (optionnaly repeatedly) on the main loop,\n * scheduled asynchroneously, avoiding recursive calls in the same tick.\n *\n * The task itself is implemented in `doTick`. It can be requested and called for single execution\n * using the `tick` method.\n *\n * It will be assured that the task execution method (`tick`) only gets called once per main loop \"tick\",\n * no matter how often it gets requested for execution. Execution in further ticks will be scheduled accordingly.\n *\n * If further execution requests have already been scheduled on the next tick, it can be checked with `hasNextTick`,\n * and cancelled with `clearNextTick`.\n *\n * The task can be scheduled as an interval repeatedly with a period as parameter (see `setInterval`, `clearInterval`).\n *\n * Sub-classes need to implement the `doTick` method which will effectively have the task execution routine.\n *\n * Further explanations:\n *\n * The baseclass has a `tick` method that will schedule the doTick call. It may be called synchroneously\n * only for a stack-depth of one. On re-entrant calls, sub-sequent calls are scheduled for next main loop ticks.\n *\n * When the task execution (`tick` method) is called in re-entrant way this is detected and\n * we are limiting the task execution per call stack to exactly one, but scheduling/post-poning further\n * task processing on the next main loop iteration (also known as \"next tick\" in the Node/JS runtime lingo).\n */\nvar TaskLoop = /*#__PURE__*/function (_EventHandler) {\n  task_loop_inheritsLoose(TaskLoop, _EventHandler);\n\n  function TaskLoop(hls) {\n    var _this;\n\n    for (var _len = arguments.length, events = new Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) {\n      events[_key - 1] = arguments[_key];\n    }\n\n    _this = _EventHandler.call.apply(_EventHandler, [this, hls].concat(events)) || this;\n    _this._boundTick = void 0;\n    _this._tickTimer = null;\n    _this._tickInterval = null;\n    _this._tickCallCount = 0;\n    _this._boundTick = _this.tick.bind(_assertThisInitialized(_this));\n    return _this;\n  }\n  /**\n   * @override\n   */\n\n\n  var _proto = TaskLoop.prototype;\n\n  _proto.onHandlerDestroying = function onHandlerDestroying() {\n    // clear all timers before unregistering from event bus\n    this.clearNextTick();\n    this.clearInterval();\n  }\n  /**\n   * @returns {boolean}\n   */\n  ;\n\n  _proto.hasInterval = function hasInterval() {\n    return !!this._tickInterval;\n  }\n  /**\n   * @returns {boolean}\n   */\n  ;\n\n  _proto.hasNextTick = function hasNextTick() {\n    return !!this._tickTimer;\n  }\n  /**\n   * @param {number} millis Interval time (ms)\n   * @returns {boolean} True when interval has been scheduled, false when already scheduled (no effect)\n   */\n  ;\n\n  _proto.setInterval = function setInterval(millis) {\n    if (!this._tickInterval) {\n      this._tickInterval = self.setInterval(this._boundTick, millis);\n      return true;\n    }\n\n    return false;\n  }\n  /**\n   * @returns {boolean} True when interval was cleared, false when none was set (no effect)\n   */\n  ;\n\n  _proto.clearInterval = function clearInterval() {\n    if (this._tickInterval) {\n      self.clearInterval(this._tickInterval);\n      this._tickInterval = null;\n      return true;\n    }\n\n    return false;\n  }\n  /**\n   * @returns {boolean} True when timeout was cleared, false when none was set (no effect)\n   */\n  ;\n\n  _proto.clearNextTick = function clearNextTick() {\n    if (this._tickTimer) {\n      self.clearTimeout(this._tickTimer);\n      this._tickTimer = null;\n      return true;\n    }\n\n    return false;\n  }\n  /**\n   * Will call the subclass doTick implementation in this main loop tick\n   * or in the next one (via setTimeout(,0)) in case it has already been called\n   * in this tick (in case this is a re-entrant call).\n   */\n  ;\n\n  _proto.tick = function tick() {\n    this._tickCallCount++;\n\n    if (this._tickCallCount === 1) {\n      this.doTick(); // re-entrant call to tick from previous doTick call stack\n      // -> schedule a call on the next main loop iteration to process this task processing request\n\n      if (this._tickCallCount > 1) {\n        // make sure only one timer exists at any time at max\n        this.clearNextTick();\n        this._tickTimer = self.setTimeout(this._boundTick, 0);\n      }\n\n      this._tickCallCount = 0;\n    }\n  }\n  /**\n   * For subclass to implement task logic\n   * @abstract\n   */\n  ;\n\n  _proto.doTick = function doTick() {};\n\n  return TaskLoop;\n}(event_handler);\n\n\n// CONCATENATED MODULE: ./src/controller/base-stream-controller.js\n\n\nfunction base_stream_controller_inheritsLoose(subClass, superClass) { subClass.prototype = Object.create(superClass.prototype); subClass.prototype.constructor = subClass; subClass.__proto__ = superClass; }\n\n\n\n\n\nvar State = {\n  STOPPED: 'STOPPED',\n  STARTING: 'STARTING',\n  IDLE: 'IDLE',\n  PAUSED: 'PAUSED',\n  KEY_LOADING: 'KEY_LOADING',\n  FRAG_LOADING: 'FRAG_LOADING',\n  FRAG_LOADING_WAITING_RETRY: 'FRAG_LOADING_WAITING_RETRY',\n  WAITING_TRACK: 'WAITING_TRACK',\n  PARSING: 'PARSING',\n  PARSED: 'PARSED',\n  BUFFER_FLUSHING: 'BUFFER_FLUSHING',\n  ENDED: 'ENDED',\n  ERROR: 'ERROR',\n  WAITING_INIT_PTS: 'WAITING_INIT_PTS',\n  WAITING_LEVEL: 'WAITING_LEVEL'\n};\n\nvar base_stream_controller_BaseStreamController = /*#__PURE__*/function (_TaskLoop) {\n  base_stream_controller_inheritsLoose(BaseStreamController, _TaskLoop);\n\n  function BaseStreamController() {\n    return _TaskLoop.apply(this, arguments) || this;\n  }\n\n  var _proto = BaseStreamController.prototype;\n\n  _proto.doTick = function doTick() {};\n\n  _proto.startLoad = function startLoad() {};\n\n  _proto.stopLoad = function stopLoad() {\n    var frag = this.fragCurrent;\n\n    if (frag) {\n      if (frag.loader) {\n        frag.loader.abort();\n      }\n\n      this.fragmentTracker.removeFragment(frag);\n    }\n\n    if (this.demuxer) {\n      this.demuxer.destroy();\n      this.demuxer = null;\n    }\n\n    this.fragCurrent = null;\n    this.fragPrevious = null;\n    this.clearInterval();\n    this.clearNextTick();\n    this.state = State.STOPPED;\n  };\n\n  _proto._streamEnded = function _streamEnded(bufferInfo, levelDetails) {\n    var fragCurrent = this.fragCurrent,\n        fragmentTracker = this.fragmentTracker; // we just got done loading the final fragment and there is no other buffered range after ...\n    // rationale is that in case there are any buffered ranges after, it means that there are unbuffered portion in between\n    // so we should not switch to ENDED in that case, to be able to buffer them\n    // dont switch to ENDED if we need to backtrack last fragment\n\n    if (!levelDetails.live && fragCurrent && !fragCurrent.backtracked && fragCurrent.sn === levelDetails.endSN && !bufferInfo.nextStart) {\n      var fragState = fragmentTracker.getState(fragCurrent);\n      return fragState === FragmentState.PARTIAL || fragState === FragmentState.OK;\n    }\n\n    return false;\n  };\n\n  _proto.onMediaSeeking = function onMediaSeeking() {\n    var config = this.config,\n        media = this.media,\n        mediaBuffer = this.mediaBuffer,\n        state = this.state;\n    var currentTime = media ? media.currentTime : null;\n    var bufferInfo = BufferHelper.bufferInfo(mediaBuffer || media, currentTime, this.config.maxBufferHole);\n\n    if (Object(number_isFinite[\"isFiniteNumber\"])(currentTime)) {\n      logger[\"logger\"].log(\"media seeking to \" + currentTime.toFixed(3));\n    }\n\n    if (state === State.FRAG_LOADING) {\n      var fragCurrent = this.fragCurrent; // check if we are seeking to a unbuffered area AND if frag loading is in progress\n\n      if (bufferInfo.len === 0 && fragCurrent) {\n        var tolerance = config.maxFragLookUpTolerance;\n        var fragStartOffset = fragCurrent.start - tolerance;\n        var fragEndOffset = fragCurrent.start + fragCurrent.duration + tolerance; // check if we seek position will be out of currently loaded frag range : if out cancel frag load, if in, don't do anything\n\n        if (currentTime < fragStartOffset || currentTime > fragEndOffset) {\n          if (fragCurrent.loader) {\n            logger[\"logger\"].log('seeking outside of buffer while fragment load in progress, cancel fragment load');\n            fragCurrent.loader.abort();\n          }\n\n          this.fragCurrent = null;\n          this.fragPrevious = null; // switch to IDLE state to load new fragment\n\n          this.state = State.IDLE;\n        } else {\n          logger[\"logger\"].log('seeking outside of buffer but within currently loaded fragment range');\n        }\n      }\n    } else if (state === State.ENDED) {\n      // if seeking to unbuffered area, clean up fragPrevious\n      if (bufferInfo.len === 0) {\n        this.fragPrevious = null;\n        this.fragCurrent = null;\n      } // switch to IDLE state to check for potential new fragment\n\n\n      this.state = State.IDLE;\n    }\n\n    if (media) {\n      this.lastCurrentTime = currentTime;\n    } // in case seeking occurs although no media buffered, adjust startPosition and nextLoadPosition to seek target\n\n\n    if (!this.loadedmetadata) {\n      this.nextLoadPosition = this.startPosition = currentTime;\n    } // tick to speed up processing\n\n\n    this.tick();\n  };\n\n  _proto.onMediaEnded = function onMediaEnded() {\n    // reset startPosition and lastCurrentTime to restart playback @ stream beginning\n    this.startPosition = this.lastCurrentTime = 0;\n  };\n\n  _proto.onHandlerDestroying = function onHandlerDestroying() {\n    this.stopLoad();\n\n    _TaskLoop.prototype.onHandlerDestroying.call(this);\n  };\n\n  _proto.onHandlerDestroyed = function onHandlerDestroyed() {\n    this.state = State.STOPPED;\n    this.fragmentTracker = null;\n  };\n\n  _proto.computeLivePosition = function computeLivePosition(sliding, levelDetails) {\n    var targetLatency = this.config.liveSyncDuration !== undefined ? this.config.liveSyncDuration : this.config.liveSyncDurationCount * levelDetails.targetduration;\n    return sliding + Math.max(0, levelDetails.totalduration - targetLatency);\n  };\n\n  return BaseStreamController;\n}(TaskLoop);\n\n\n// CONCATENATED MODULE: ./src/controller/stream-controller.js\n\n\n\n\n\n\n\nfunction stream_controller_defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if (\"value\" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }\n\nfunction stream_controller_createClass(Constructor, protoProps, staticProps) { if (protoProps) stream_controller_defineProperties(Constructor.prototype, protoProps); if (staticProps) stream_controller_defineProperties(Constructor, staticProps); return Constructor; }\n\nfunction stream_controller_inheritsLoose(subClass, superClass) { subClass.prototype = Object.create(superClass.prototype); subClass.prototype.constructor = subClass; subClass.__proto__ = superClass; }\n\n/*\n * Stream Controller\n*/\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\nvar TICK_INTERVAL = 100; // how often to tick in ms\n\nvar stream_controller_StreamController = /*#__PURE__*/function (_BaseStreamController) {\n  stream_controller_inheritsLoose(StreamController, _BaseStreamController);\n\n  function StreamController(hls, fragmentTracker) {\n    var _this;\n\n    _this = _BaseStreamController.call(this, hls, events[\"default\"].MEDIA_ATTACHED, events[\"default\"].MEDIA_DETACHING, events[\"default\"].MANIFEST_LOADING, events[\"default\"].MANIFEST_PARSED, events[\"default\"].LEVEL_LOADED, events[\"default\"].LEVELS_UPDATED, events[\"default\"].KEY_LOADED, events[\"default\"].FRAG_LOADED, events[\"default\"].FRAG_LOAD_EMERGENCY_ABORTED, events[\"default\"].FRAG_PARSING_INIT_SEGMENT, events[\"default\"].FRAG_PARSING_DATA, events[\"default\"].FRAG_PARSED, events[\"default\"].ERROR, events[\"default\"].AUDIO_TRACK_SWITCHING, events[\"default\"].AUDIO_TRACK_SWITCHED, events[\"default\"].BUFFER_CREATED, events[\"default\"].BUFFER_APPENDED, events[\"default\"].BUFFER_FLUSHED) || this;\n    _this.fragmentTracker = fragmentTracker;\n    _this.config = hls.config;\n    _this.audioCodecSwap = false;\n    _this._state = State.STOPPED;\n    _this.stallReported = false;\n    _this.gapController = null;\n    _this.altAudio = false;\n    _this.audioOnly = false;\n    _this.bitrateTest = false;\n    return _this;\n  }\n\n  var _proto = StreamController.prototype;\n\n  _proto.startLoad = function startLoad(startPosition) {\n    if (this.levels) {\n      var lastCurrentTime = this.lastCurrentTime,\n          hls = this.hls;\n      this.stopLoad();\n      this.setInterval(TICK_INTERVAL);\n      this.level = -1;\n      this.fragLoadError = 0;\n\n      if (!this.startFragRequested) {\n        // determine load level\n        var startLevel = hls.startLevel;\n\n        if (startLevel === -1) {\n          if (hls.config.testBandwidth) {\n            // -1 : guess start Level by doing a bitrate test by loading first fragment of lowest quality level\n            startLevel = 0;\n            this.bitrateTest = true;\n          } else {\n            startLevel = hls.nextAutoLevel;\n          }\n        } // set new level to playlist loader : this will trigger start level load\n        // hls.nextLoadLevel remains until it is set to a new value or until a new frag is successfully loaded\n\n\n        this.level = hls.nextLoadLevel = startLevel;\n        this.loadedmetadata = false;\n      } // if startPosition undefined but lastCurrentTime set, set startPosition to last currentTime\n\n\n      if (lastCurrentTime > 0 && startPosition === -1) {\n        logger[\"logger\"].log(\"override startPosition with lastCurrentTime @\" + lastCurrentTime.toFixed(3));\n        startPosition = lastCurrentTime;\n      }\n\n      this.state = State.IDLE;\n      this.nextLoadPosition = this.startPosition = this.lastCurrentTime = startPosition;\n      this.tick();\n    } else {\n      this.forceStartLoad = true;\n      this.state = State.STOPPED;\n    }\n  };\n\n  _proto.stopLoad = function stopLoad() {\n    this.forceStartLoad = false;\n\n    _BaseStreamController.prototype.stopLoad.call(this);\n  };\n\n  _proto.doTick = function doTick() {\n    switch (this.state) {\n      case State.BUFFER_FLUSHING:\n        // in buffer flushing state, reset fragLoadError counter\n        this.fragLoadError = 0;\n        break;\n\n      case State.IDLE:\n        this._doTickIdle();\n\n        break;\n\n      case State.WAITING_LEVEL:\n        var level = this.levels[this.level]; // check if playlist is already loaded\n\n        if (level && level.details) {\n          this.state = State.IDLE;\n        }\n\n        break;\n\n      case State.FRAG_LOADING_WAITING_RETRY:\n        var now = window.performance.now();\n        var retryDate = this.retryDate; // if current time is gt than retryDate, or if media seeking let's switch to IDLE state to retry loading\n\n        if (!retryDate || now >= retryDate || this.media && this.media.seeking) {\n          logger[\"logger\"].log('mediaController: retryDate reached, switch back to IDLE state');\n          this.state = State.IDLE;\n        }\n\n        break;\n\n      case State.ERROR:\n      case State.STOPPED:\n      case State.FRAG_LOADING:\n      case State.PARSING:\n      case State.PARSED:\n      case State.ENDED:\n        break;\n\n      default:\n        break;\n    } // check buffer\n\n\n    this._checkBuffer(); // check/update current fragment\n\n\n    this._checkFragmentChanged();\n  } // Ironically the \"idle\" state is the on we do the most logic in it seems ....\n  // NOTE: Maybe we could rather schedule a check for buffer length after half of the currently\n  //       played segment, or on pause/play/seek instead of naively checking every 100ms?\n  ;\n\n  _proto._doTickIdle = function _doTickIdle() {\n    var hls = this.hls,\n        config = hls.config,\n        media = this.media; // if start level not parsed yet OR\n    // if video not attached AND start fragment already requested OR start frag prefetch disable\n    // exit loop, as we either need more info (level not parsed) or we need media to be attached to load new fragment\n\n    if (this.levelLastLoaded === undefined || !media && (this.startFragRequested || !config.startFragPrefetch)) {\n      return;\n    } // If the \"main\" level is audio-only but we are loading an alternate track in the same group, do not load anything\n\n\n    if (this.altAudio && this.audioOnly) {\n      // Clear audio demuxer state so when switching back to main audio we're not still appending where we left off\n      this.demuxer.frag = null;\n      return;\n    } // if we have not yet loaded any fragment, start loading from start position\n\n\n    var pos;\n\n    if (this.loadedmetadata) {\n      pos = media.currentTime;\n    } else {\n      pos = this.nextLoadPosition;\n    } // determine next load level\n\n\n    var level = hls.nextLoadLevel,\n        levelInfo = this.levels[level];\n\n    if (!levelInfo) {\n      return;\n    }\n\n    var levelBitrate = levelInfo.bitrate,\n        maxBufLen; // compute max Buffer Length that we could get from this load level, based on level bitrate.\n\n    if (levelBitrate) {\n      maxBufLen = Math.max(8 * config.maxBufferSize / levelBitrate, config.maxBufferLength);\n    } else {\n      maxBufLen = config.maxBufferLength;\n    }\n\n    maxBufLen = Math.min(maxBufLen, config.maxMaxBufferLength); // determine next candidate fragment to be loaded, based on current position and end of buffer position\n    // ensure up to `config.maxMaxBufferLength` of buffer upfront\n\n    var maxBufferHole = pos < config.maxBufferHole ? Math.max(MAX_START_GAP_JUMP, config.maxBufferHole) : config.maxBufferHole;\n    var bufferInfo = BufferHelper.bufferInfo(this.mediaBuffer ? this.mediaBuffer : media, pos, maxBufferHole);\n    var bufferLen = bufferInfo.len; // Stay idle if we are still with buffer margins\n\n    if (bufferLen >= maxBufLen) {\n      return;\n    } // if buffer length is less than maxBufLen try to load a new fragment ...\n\n\n    logger[\"logger\"].trace(\"buffer length of \" + bufferLen.toFixed(3) + \" is below max of \" + maxBufLen.toFixed(3) + \". checking for more payload ...\"); // set next load level : this will trigger a playlist load if needed\n\n    this.level = hls.nextLoadLevel = level;\n    var levelDetails = levelInfo.details; // if level info not retrieved yet, switch state and wait for level retrieval\n    // if live playlist, ensure that new playlist has been refreshed to avoid loading/try to load\n    // a useless and outdated fragment (that might even introduce load error if it is already out of the live playlist)\n\n    if (!levelDetails || levelDetails.live && this.levelLastLoaded !== level) {\n      this.state = State.WAITING_LEVEL;\n      return;\n    }\n\n    if (this._streamEnded(bufferInfo, levelDetails)) {\n      var data = {};\n\n      if (this.altAudio) {\n        data.type = 'video';\n      }\n\n      this.hls.trigger(events[\"default\"].BUFFER_EOS, data);\n      this.state = State.ENDED;\n      return;\n    } // if we have the levelDetails for the selected variant, lets continue enrichen our stream (load keys/fragments or trigger EOS, etc..)\n\n\n    this._fetchPayloadOrEos(pos, bufferInfo, levelDetails);\n  };\n\n  _proto._fetchPayloadOrEos = function _fetchPayloadOrEos(pos, bufferInfo, levelDetails) {\n    var fragPrevious = this.fragPrevious,\n        level = this.level,\n        fragments = levelDetails.fragments,\n        fragLen = fragments.length; // empty playlist\n\n    if (fragLen === 0) {\n      return;\n    } // find fragment index, contiguous with end of buffer position\n\n\n    var start = fragments[0].start,\n        end = fragments[fragLen - 1].start + fragments[fragLen - 1].duration,\n        bufferEnd = bufferInfo.end,\n        frag;\n\n    if (levelDetails.initSegment && !levelDetails.initSegment.data) {\n      frag = levelDetails.initSegment;\n    } else {\n      // in case of live playlist we need to ensure that requested position is not located before playlist start\n      if (levelDetails.live) {\n        var initialLiveManifestSize = this.config.initialLiveManifestSize;\n\n        if (fragLen < initialLiveManifestSize) {\n          logger[\"logger\"].warn(\"Can not start playback of a level, reason: not enough fragments \" + fragLen + \" < \" + initialLiveManifestSize);\n          return;\n        }\n\n        frag = this._ensureFragmentAtLivePoint(levelDetails, bufferEnd, start, end, fragPrevious, fragments); // if it explicitely returns null don't load any fragment and exit function now\n\n        if (frag === null) {\n          return;\n        }\n      } else {\n        // VoD playlist: if bufferEnd before start of playlist, load first fragment\n        if (bufferEnd < start) {\n          frag = fragments[0];\n        }\n      }\n    }\n\n    if (!frag) {\n      frag = this._findFragment(start, fragPrevious, fragLen, fragments, bufferEnd, end, levelDetails);\n    }\n\n    if (frag) {\n      if (frag.encrypted) {\n        this._loadKey(frag, levelDetails);\n      } else {\n        this._loadFragment(frag, levelDetails, pos, bufferEnd);\n      }\n    }\n  };\n\n  _proto._ensureFragmentAtLivePoint = function _ensureFragmentAtLivePoint(levelDetails, bufferEnd, start, end, fragPrevious, fragments) {\n    var config = this.hls.config,\n        media = this.media;\n    var frag; // check if requested position is within seekable boundaries :\n    // logger.log(`start/pos/bufEnd/seeking:${start.toFixed(3)}/${pos.toFixed(3)}/${bufferEnd.toFixed(3)}/${this.media.seeking}`);\n\n    var maxLatency = Infinity;\n\n    if (config.liveMaxLatencyDuration !== undefined) {\n      maxLatency = config.liveMaxLatencyDuration;\n    } else if (Object(number_isFinite[\"isFiniteNumber\"])(config.liveMaxLatencyDurationCount)) {\n      maxLatency = config.liveMaxLatencyDurationCount * levelDetails.targetduration;\n    }\n\n    if (bufferEnd < Math.max(start - config.maxFragLookUpTolerance, end - maxLatency)) {\n      var liveSyncPosition = this.liveSyncPosition = this.computeLivePosition(start, levelDetails);\n      bufferEnd = liveSyncPosition;\n\n      if (media && !media.paused && media.readyState && media.duration > liveSyncPosition && liveSyncPosition > media.currentTime) {\n        logger[\"logger\"].log(\"buffer end: \" + bufferEnd.toFixed(3) + \" is located too far from the end of live sliding playlist, reset currentTime to : \" + liveSyncPosition.toFixed(3));\n        media.currentTime = liveSyncPosition;\n      }\n\n      this.nextLoadPosition = liveSyncPosition;\n    } // if end of buffer greater than live edge, don't load any fragment\n    // this could happen if live playlist intermittently slides in the past.\n    // level 1 loaded [182580161,182580167]\n    // level 1 loaded [182580162,182580169]\n    // Loading 182580168 of [182580162 ,182580169],level 1 ..\n    // Loading 182580169 of [182580162 ,182580169],level 1 ..\n    // level 1 loaded [182580162,182580168] <============= here we should have bufferEnd > end. in that case break to avoid reloading 182580168\n    // level 1 loaded [182580164,182580171]\n    //\n    // don't return null in case media not loaded yet (readystate === 0)\n\n\n    if (levelDetails.PTSKnown && bufferEnd > end && media && media.readyState) {\n      return null;\n    }\n\n    if (this.startFragRequested && !levelDetails.PTSKnown) {\n      /* we are switching level on live playlist, but we don't have any PTS info for that quality level ...\n         try to load frag matching with next SN.\n         even if SN are not synchronized between playlists, loading this frag will help us\n         compute playlist sliding and find the right one after in case it was not the right consecutive one */\n      if (fragPrevious) {\n        if (levelDetails.hasProgramDateTime) {\n          // Relies on PDT in order to switch bitrates (Support EXT-X-DISCONTINUITY without EXT-X-DISCONTINUITY-SEQUENCE)\n          logger[\"logger\"].log(\"live playlist, switching playlist, load frag with same PDT: \" + fragPrevious.programDateTime);\n          frag = findFragmentByPDT(fragments, fragPrevious.endProgramDateTime, config.maxFragLookUpTolerance);\n        } else {\n          // Uses buffer and sequence number to calculate switch segment (required if using EXT-X-DISCONTINUITY-SEQUENCE)\n          var targetSN = fragPrevious.sn + 1;\n\n          if (targetSN >= levelDetails.startSN && targetSN <= levelDetails.endSN) {\n            var fragNext = fragments[targetSN - levelDetails.startSN];\n\n            if (fragPrevious.cc === fragNext.cc) {\n              frag = fragNext;\n              logger[\"logger\"].log(\"live playlist, switching playlist, load frag with next SN: \" + frag.sn);\n            }\n          } // next frag SN not available (or not with same continuity counter)\n          // look for a frag sharing the same CC\n\n\n          if (!frag) {\n            frag = binary_search.search(fragments, function (frag) {\n              return fragPrevious.cc - frag.cc;\n            });\n\n            if (frag) {\n              logger[\"logger\"].log(\"live playlist, switching playlist, load frag with same CC: \" + frag.sn);\n            }\n          }\n        }\n      }\n    }\n\n    return frag;\n  };\n\n  _proto._findFragment = function _findFragment(start, fragPreviousLoad, fragmentIndexRange, fragments, bufferEnd, end, levelDetails) {\n    var config = this.hls.config;\n    var fragNextLoad;\n\n    if (bufferEnd < end) {\n      var lookupTolerance = bufferEnd > end - config.maxFragLookUpTolerance ? 0 : config.maxFragLookUpTolerance; // Remove the tolerance if it would put the bufferEnd past the actual end of stream\n      // Uses buffer and sequence number to calculate switch segment (required if using EXT-X-DISCONTINUITY-SEQUENCE)\n\n      fragNextLoad = findFragmentByPTS(fragPreviousLoad, fragments, bufferEnd, lookupTolerance);\n    } else {\n      // reach end of playlist\n      fragNextLoad = fragments[fragmentIndexRange - 1];\n    }\n\n    if (fragNextLoad) {\n      var curSNIdx = fragNextLoad.sn - levelDetails.startSN;\n      var sameLevel = fragPreviousLoad && fragNextLoad.level === fragPreviousLoad.level;\n      var prevSnFrag = fragments[curSNIdx - 1];\n      var nextSnFrag = fragments[curSNIdx + 1]; // logger.log('find SN matching with pos:' +  bufferEnd + ':' + frag.sn);\n\n      if (fragPreviousLoad && fragNextLoad.sn === fragPreviousLoad.sn) {\n        if (sameLevel && !fragNextLoad.backtracked) {\n          if (fragNextLoad.sn < levelDetails.endSN) {\n            var deltaPTS = fragPreviousLoad.deltaPTS; // if there is a significant delta between audio and video, larger than max allowed hole,\n            // and if previous remuxed fragment did not start with a keyframe. (fragPrevious.dropped)\n            // let's try to load previous fragment again to get last keyframe\n            // then we will reload again current fragment (that way we should be able to fill the buffer hole ...)\n\n            if (deltaPTS && deltaPTS > config.maxBufferHole && fragPreviousLoad.dropped && curSNIdx) {\n              fragNextLoad = prevSnFrag;\n              logger[\"logger\"].warn('Previous fragment was dropped with large PTS gap between audio and video. Maybe fragment is not starting with a keyframe? Loading previous one to try to overcome this');\n            } else {\n              fragNextLoad = nextSnFrag;\n              logger[\"logger\"].log(\"Re-loading fragment with SN: \" + fragNextLoad.sn);\n            }\n          } else {\n            fragNextLoad = null;\n          }\n        } else if (fragNextLoad.backtracked) {\n          // Only backtrack a max of 1 consecutive fragment to prevent sliding back too far when little or no frags start with keyframes\n          if (nextSnFrag && nextSnFrag.backtracked) {\n            logger[\"logger\"].warn(\"Already backtracked from fragment \" + nextSnFrag.sn + \", will not backtrack to fragment \" + fragNextLoad.sn + \". Loading fragment \" + nextSnFrag.sn);\n            fragNextLoad = nextSnFrag;\n          } else {\n            // If a fragment has dropped frames and it's in a same level/sequence, load the previous fragment to try and find the keyframe\n            // Reset the dropped count now since it won't be reset until we parse the fragment again, which prevents infinite backtracking on the same segment\n            logger[\"logger\"].warn('Loaded fragment with dropped frames, backtracking 1 segment to find a keyframe');\n            fragNextLoad.dropped = 0;\n\n            if (prevSnFrag) {\n              fragNextLoad = prevSnFrag;\n              fragNextLoad.backtracked = true;\n            } else if (curSNIdx) {\n              // can't backtrack on very first fragment\n              fragNextLoad = null;\n            }\n          }\n        }\n      }\n    }\n\n    return fragNextLoad;\n  };\n\n  _proto._loadKey = function _loadKey(frag, levelDetails) {\n    logger[\"logger\"].log(\"Loading key for \" + frag.sn + \" of [\" + levelDetails.startSN + \" ,\" + levelDetails.endSN + \"],level \" + this.level);\n    this.state = State.KEY_LOADING;\n    this.hls.trigger(events[\"default\"].KEY_LOADING, {\n      frag: frag\n    });\n  };\n\n  _proto._loadFragment = function _loadFragment(frag, levelDetails, pos, bufferEnd) {\n    // Check if fragment is not loaded\n    var fragState = this.fragmentTracker.getState(frag);\n    this.fragCurrent = frag;\n\n    if (frag.sn !== 'initSegment') {\n      this.startFragRequested = true;\n    } // Don't update nextLoadPosition for fragments which are not buffered\n\n\n    if (Object(number_isFinite[\"isFiniteNumber\"])(frag.sn) && !frag.bitrateTest) {\n      this.nextLoadPosition = frag.start + frag.duration;\n    } // Allow backtracked fragments to load\n\n\n    if (frag.backtracked || fragState === FragmentState.NOT_LOADED || fragState === FragmentState.PARTIAL) {\n      frag.autoLevel = this.hls.autoLevelEnabled;\n      frag.bitrateTest = this.bitrateTest;\n      logger[\"logger\"].log(\"Loading \" + frag.sn + \" of [\" + levelDetails.startSN + \" ,\" + levelDetails.endSN + \"],level \" + this.level + \", currentTime:\" + pos.toFixed(3) + \",bufferEnd:\" + bufferEnd.toFixed(3));\n      this.hls.trigger(events[\"default\"].FRAG_LOADING, {\n        frag: frag\n      }); // lazy demuxer init, as this could take some time ... do it during frag loading\n\n      if (!this.demuxer) {\n        this.demuxer = new demux_demuxer(this.hls, 'main');\n      }\n\n      this.state = State.FRAG_LOADING;\n    } else if (fragState === FragmentState.APPENDING) {\n      // Lower the buffer size and try again\n      if (this._reduceMaxBufferLength(frag.duration)) {\n        this.fragmentTracker.removeFragment(frag);\n      }\n    }\n  };\n\n  _proto.getBufferedFrag = function getBufferedFrag(position) {\n    return this.fragmentTracker.getBufferedFrag(position, PlaylistLevelType.MAIN);\n  };\n\n  _proto.followingBufferedFrag = function followingBufferedFrag(frag) {\n    if (frag) {\n      // try to get range of next fragment (500ms after this range)\n      return this.getBufferedFrag(frag.endPTS + 0.5);\n    }\n\n    return null;\n  };\n\n  _proto._checkFragmentChanged = function _checkFragmentChanged() {\n    var fragPlayingCurrent,\n        currentTime,\n        video = this.media;\n\n    if (video && video.readyState && video.seeking === false) {\n      currentTime = video.currentTime;\n      /* if video element is in seeked state, currentTime can only increase.\n        (assuming that playback rate is positive ...)\n        As sometimes currentTime jumps back to zero after a\n        media decode error, check this, to avoid seeking back to\n        wrong position after a media decode error\n      */\n\n      if (currentTime > this.lastCurrentTime) {\n        this.lastCurrentTime = currentTime;\n      }\n\n      if (BufferHelper.isBuffered(video, currentTime)) {\n        fragPlayingCurrent = this.getBufferedFrag(currentTime);\n      } else if (BufferHelper.isBuffered(video, currentTime + 0.1)) {\n        /* ensure that FRAG_CHANGED event is triggered at startup,\n          when first video frame is displayed and playback is paused.\n          add a tolerance of 100ms, in case current position is not buffered,\n          check if current pos+100ms is buffered and use that buffer range\n          for FRAG_CHANGED event reporting */\n        fragPlayingCurrent = this.getBufferedFrag(currentTime + 0.1);\n      }\n\n      if (fragPlayingCurrent) {\n        var fragPlaying = fragPlayingCurrent;\n\n        if (fragPlaying !== this.fragPlaying) {\n          this.hls.trigger(events[\"default\"].FRAG_CHANGED, {\n            frag: fragPlaying\n          });\n          var fragPlayingLevel = fragPlaying.level;\n\n          if (!this.fragPlaying || this.fragPlaying.level !== fragPlayingLevel) {\n            this.hls.trigger(events[\"default\"].LEVEL_SWITCHED, {\n              level: fragPlayingLevel\n            });\n          }\n\n          this.fragPlaying = fragPlaying;\n        }\n      }\n    }\n  }\n  /*\n    on immediate level switch :\n     - pause playback if playing\n     - cancel any pending load request\n     - and trigger a buffer flush\n  */\n  ;\n\n  _proto.immediateLevelSwitch = function immediateLevelSwitch() {\n    logger[\"logger\"].log('immediateLevelSwitch');\n\n    if (!this.immediateSwitch) {\n      this.immediateSwitch = true;\n      var media = this.media,\n          previouslyPaused;\n\n      if (media) {\n        previouslyPaused = media.paused;\n        media.pause();\n      } else {\n        // don't restart playback after instant level switch in case media not attached\n        previouslyPaused = true;\n      }\n\n      this.previouslyPaused = previouslyPaused;\n    }\n\n    var fragCurrent = this.fragCurrent;\n\n    if (fragCurrent && fragCurrent.loader) {\n      fragCurrent.loader.abort();\n    }\n\n    this.fragCurrent = null; // flush everything\n\n    this.flushMainBuffer(0, Number.POSITIVE_INFINITY);\n  }\n  /**\n   * on immediate level switch end, after new fragment has been buffered:\n   * - nudge video decoder by slightly adjusting video currentTime (if currentTime buffered)\n   * - resume the playback if needed\n   */\n  ;\n\n  _proto.immediateLevelSwitchEnd = function immediateLevelSwitchEnd() {\n    var media = this.media;\n\n    if (media && media.buffered.length) {\n      this.immediateSwitch = false;\n\n      if (BufferHelper.isBuffered(media, media.currentTime)) {\n        // only nudge if currentTime is buffered\n        media.currentTime -= 0.0001;\n      }\n\n      if (!this.previouslyPaused) {\n        media.play();\n      }\n    }\n  }\n  /**\n   * try to switch ASAP without breaking video playback:\n   * in order to ensure smooth but quick level switching,\n   * we need to find the next flushable buffer range\n   * we should take into account new segment fetch time\n   */\n  ;\n\n  _proto.nextLevelSwitch = function nextLevelSwitch() {\n    var media = this.media; // ensure that media is defined and that metadata are available (to retrieve currentTime)\n\n    if (media && media.readyState) {\n      var fetchdelay, fragPlayingCurrent, nextBufferedFrag;\n      fragPlayingCurrent = this.getBufferedFrag(media.currentTime);\n\n      if (fragPlayingCurrent && fragPlayingCurrent.startPTS > 1) {\n        // flush buffer preceding current fragment (flush until current fragment start offset)\n        // minus 1s to avoid video freezing, that could happen if we flush keyframe of current video ...\n        this.flushMainBuffer(0, fragPlayingCurrent.startPTS - 1);\n      }\n\n      if (!media.paused) {\n        // add a safety delay of 1s\n        var nextLevelId = this.hls.nextLoadLevel,\n            nextLevel = this.levels[nextLevelId],\n            fragLastKbps = this.fragLastKbps;\n\n        if (fragLastKbps && this.fragCurrent) {\n          fetchdelay = this.fragCurrent.duration * nextLevel.bitrate / (1000 * fragLastKbps) + 1;\n        } else {\n          fetchdelay = 0;\n        }\n      } else {\n        fetchdelay = 0;\n      } // logger.log('fetchdelay:'+fetchdelay);\n      // find buffer range that will be reached once new fragment will be fetched\n\n\n      nextBufferedFrag = this.getBufferedFrag(media.currentTime + fetchdelay);\n\n      if (nextBufferedFrag) {\n        // we can flush buffer range following this one without stalling playback\n        nextBufferedFrag = this.followingBufferedFrag(nextBufferedFrag);\n\n        if (nextBufferedFrag) {\n          // if we are here, we can also cancel any loading/demuxing in progress, as they are useless\n          var fragCurrent = this.fragCurrent;\n\n          if (fragCurrent && fragCurrent.loader) {\n            fragCurrent.loader.abort();\n          }\n\n          this.fragCurrent = null; // start flush position is the start PTS of next buffered frag.\n          // we use frag.naxStartPTS which is max(audio startPTS, video startPTS).\n          // in case there is a small PTS Delta between audio and video, using maxStartPTS avoids flushing last samples from current fragment\n\n          this.flushMainBuffer(nextBufferedFrag.maxStartPTS, Number.POSITIVE_INFINITY);\n        }\n      }\n    }\n  };\n\n  _proto.flushMainBuffer = function flushMainBuffer(startOffset, endOffset) {\n    this.state = State.BUFFER_FLUSHING;\n    var flushScope = {\n      startOffset: startOffset,\n      endOffset: endOffset\n    }; // if alternate audio tracks are used, only flush video, otherwise flush everything\n\n    if (this.altAudio) {\n      flushScope.type = 'video';\n    }\n\n    this.hls.trigger(events[\"default\"].BUFFER_FLUSHING, flushScope);\n  };\n\n  _proto.onMediaAttached = function onMediaAttached(data) {\n    var media = this.media = this.mediaBuffer = data.media;\n    this.onvseeking = this.onMediaSeeking.bind(this);\n    this.onvseeked = this.onMediaSeeked.bind(this);\n    this.onvended = this.onMediaEnded.bind(this);\n    media.addEventListener('seeking', this.onvseeking);\n    media.addEventListener('seeked', this.onvseeked);\n    media.addEventListener('ended', this.onvended);\n    var config = this.config;\n\n    if (this.levels && config.autoStartLoad) {\n      this.hls.startLoad(config.startPosition);\n    }\n\n    this.gapController = new gap_controller_GapController(config, media, this.fragmentTracker, this.hls);\n  };\n\n  _proto.onMediaDetaching = function onMediaDetaching() {\n    var media = this.media;\n\n    if (media && media.ended) {\n      logger[\"logger\"].log('MSE detaching and video ended, reset startPosition');\n      this.startPosition = this.lastCurrentTime = 0;\n    } // reset fragment backtracked flag\n\n\n    var levels = this.levels;\n\n    if (levels) {\n      levels.forEach(function (level) {\n        if (level.details) {\n          level.details.fragments.forEach(function (fragment) {\n            fragment.backtracked = undefined;\n          });\n        }\n      });\n    } // remove video listeners\n\n\n    if (media) {\n      media.removeEventListener('seeking', this.onvseeking);\n      media.removeEventListener('seeked', this.onvseeked);\n      media.removeEventListener('ended', this.onvended);\n      this.onvseeking = this.onvseeked = this.onvended = null;\n    }\n\n    this.fragmentTracker.removeAllFragments();\n    this.media = this.mediaBuffer = null;\n    this.loadedmetadata = false;\n    this.stopLoad();\n  };\n\n  _proto.onMediaSeeked = function onMediaSeeked() {\n    var media = this.media;\n    var currentTime = media ? media.currentTime : undefined;\n\n    if (Object(number_isFinite[\"isFiniteNumber\"])(currentTime)) {\n      logger[\"logger\"].log(\"media seeked to \" + currentTime.toFixed(3));\n    } // tick to speed up FRAGMENT_PLAYING triggering\n\n\n    this.tick();\n  };\n\n  _proto.onManifestLoading = function onManifestLoading() {\n    // reset buffer on manifest loading\n    logger[\"logger\"].log('trigger BUFFER_RESET');\n    this.hls.trigger(events[\"default\"].BUFFER_RESET);\n    this.fragmentTracker.removeAllFragments();\n    this.stalled = false;\n    this.startPosition = this.lastCurrentTime = 0;\n  };\n\n  _proto.onManifestParsed = function onManifestParsed(data) {\n    var aac = false,\n        heaac = false,\n        codec;\n    data.levels.forEach(function (level) {\n      // detect if we have different kind of audio codecs used amongst playlists\n      codec = level.audioCodec;\n\n      if (codec) {\n        if (codec.indexOf('mp4a.40.2') !== -1) {\n          aac = true;\n        }\n\n        if (codec.indexOf('mp4a.40.5') !== -1) {\n          heaac = true;\n        }\n      }\n    });\n    this.audioCodecSwitch = aac && heaac;\n\n    if (this.audioCodecSwitch) {\n      logger[\"logger\"].log('both AAC/HE-AAC audio found in levels; declaring level codec as HE-AAC');\n    }\n\n    this.altAudio = data.altAudio;\n    this.levels = data.levels;\n    this.startFragRequested = false;\n    var config = this.config;\n\n    if (config.autoStartLoad || this.forceStartLoad) {\n      this.hls.startLoad(config.startPosition);\n    }\n  };\n\n  _proto.onLevelLoaded = function onLevelLoaded(data) {\n    var newDetails = data.details;\n    var newLevelId = data.level;\n    var lastLevel = this.levels[this.levelLastLoaded];\n    var curLevel = this.levels[newLevelId];\n    var duration = newDetails.totalduration;\n    var sliding = 0;\n    logger[\"logger\"].log(\"level \" + newLevelId + \" loaded [\" + newDetails.startSN + \",\" + newDetails.endSN + \"],duration:\" + duration);\n\n    if (newDetails.live) {\n      var curDetails = curLevel.details;\n\n      if (curDetails && newDetails.fragments.length > 0) {\n        // we already have details for that level, merge them\n        mergeDetails(curDetails, newDetails);\n        sliding = newDetails.fragments[0].start;\n        this.liveSyncPosition = this.computeLivePosition(sliding, curDetails);\n\n        if (newDetails.PTSKnown && Object(number_isFinite[\"isFiniteNumber\"])(sliding)) {\n          logger[\"logger\"].log(\"live playlist sliding:\" + sliding.toFixed(3));\n        } else {\n          logger[\"logger\"].log('live playlist - outdated PTS, unknown sliding');\n          alignStream(this.fragPrevious, lastLevel, newDetails);\n        }\n      } else {\n        logger[\"logger\"].log('live playlist - first load, unknown sliding');\n        newDetails.PTSKnown = false;\n        alignStream(this.fragPrevious, lastLevel, newDetails);\n      }\n    } else {\n      newDetails.PTSKnown = false;\n    } // override level info\n\n\n    curLevel.details = newDetails;\n    this.levelLastLoaded = newLevelId;\n    this.hls.trigger(events[\"default\"].LEVEL_UPDATED, {\n      details: newDetails,\n      level: newLevelId\n    });\n\n    if (this.startFragRequested === false) {\n      // compute start position if set to -1. use it straight away if value is defined\n      if (this.startPosition === -1 || this.lastCurrentTime === -1) {\n        // first, check if start time offset has been set in playlist, if yes, use this value\n        var startTimeOffset = newDetails.startTimeOffset;\n\n        if (Object(number_isFinite[\"isFiniteNumber\"])(startTimeOffset)) {\n          if (startTimeOffset < 0) {\n            logger[\"logger\"].log(\"negative start time offset \" + startTimeOffset + \", count from end of last fragment\");\n            startTimeOffset = sliding + duration + startTimeOffset;\n          }\n\n          logger[\"logger\"].log(\"start time offset found in playlist, adjust startPosition to \" + startTimeOffset);\n          this.startPosition = startTimeOffset;\n        } else {\n          // if live playlist, set start position to be fragment N-this.config.liveSyncDurationCount (usually 3)\n          if (newDetails.live) {\n            this.startPosition = this.computeLivePosition(sliding, newDetails);\n            logger[\"logger\"].log(\"configure startPosition to \" + this.startPosition);\n          } else {\n            this.startPosition = 0;\n          }\n        }\n\n        this.lastCurrentTime = this.startPosition;\n      }\n\n      this.nextLoadPosition = this.startPosition;\n    } // only switch batck to IDLE state if we were waiting for level to start downloading a new fragment\n\n\n    if (this.state === State.WAITING_LEVEL) {\n      this.state = State.IDLE;\n    } // trigger handler right now\n\n\n    this.tick();\n  };\n\n  _proto.onKeyLoaded = function onKeyLoaded() {\n    if (this.state === State.KEY_LOADING) {\n      this.state = State.IDLE;\n      this.tick();\n    }\n  };\n\n  _proto.onFragLoaded = function onFragLoaded(data) {\n    var fragCurrent = this.fragCurrent,\n        hls = this.hls,\n        levels = this.levels,\n        media = this.media;\n    var fragLoaded = data.frag;\n\n    if (this.state === State.FRAG_LOADING && fragCurrent && fragLoaded.type === 'main' && fragLoaded.level === fragCurrent.level && fragLoaded.sn === fragCurrent.sn) {\n      var stats = data.stats;\n      var currentLevel = levels[fragCurrent.level];\n      var details = currentLevel.details; // reset frag bitrate test in any case after frag loaded event\n      // if this frag was loaded to perform a bitrate test AND if hls.nextLoadLevel is greater than 0\n      // then this means that we should be able to load a fragment at a higher quality level\n\n      this.bitrateTest = false;\n      this.stats = stats;\n      logger[\"logger\"].log(\"Loaded \" + fragCurrent.sn + \" of [\" + details.startSN + \" ,\" + details.endSN + \"],level \" + fragCurrent.level);\n\n      if (fragLoaded.bitrateTest && hls.nextLoadLevel) {\n        // switch back to IDLE state ... we just loaded a fragment to determine adequate start bitrate and initialize autoswitch algo\n        this.state = State.IDLE;\n        this.startFragRequested = false;\n        stats.tparsed = stats.tbuffered = window.performance.now();\n        hls.trigger(events[\"default\"].FRAG_BUFFERED, {\n          stats: stats,\n          frag: fragCurrent,\n          id: 'main'\n        });\n        this.tick();\n      } else if (fragLoaded.sn === 'initSegment') {\n        this.state = State.IDLE;\n        stats.tparsed = stats.tbuffered = window.performance.now();\n        details.initSegment.data = data.payload;\n        hls.trigger(events[\"default\"].FRAG_BUFFERED, {\n          stats: stats,\n          frag: fragCurrent,\n          id: 'main'\n        });\n        this.tick();\n      } else {\n        logger[\"logger\"].log(\"Parsing \" + fragCurrent.sn + \" of [\" + details.startSN + \" ,\" + details.endSN + \"],level \" + fragCurrent.level + \", cc \" + fragCurrent.cc);\n        this.state = State.PARSING;\n        this.pendingBuffering = true;\n        this.appended = false; // Bitrate test frags are not usually buffered so the fragment tracker ignores them. If Hls.js decides to buffer\n        // it (and therefore ends up at this line), then the fragment tracker needs to be manually informed.\n\n        if (fragLoaded.bitrateTest) {\n          fragLoaded.bitrateTest = false;\n          this.fragmentTracker.onFragLoaded({\n            frag: fragLoaded\n          });\n        } // time Offset is accurate if level PTS is known, or if playlist is not sliding (not live) and if media is not seeking (this is to overcome potential timestamp drifts between playlists and fragments)\n\n\n        var accurateTimeOffset = !(media && media.seeking) && (details.PTSKnown || !details.live);\n        var initSegmentData = details.initSegment ? details.initSegment.data : [];\n\n        var audioCodec = this._getAudioCodec(currentLevel); // transmux the MPEG-TS data to ISO-BMFF segments\n\n\n        var demuxer = this.demuxer = this.demuxer || new demux_demuxer(this.hls, 'main');\n        demuxer.push(data.payload, initSegmentData, audioCodec, currentLevel.videoCodec, fragCurrent, details.totalduration, accurateTimeOffset);\n      }\n    }\n\n    this.fragLoadError = 0;\n  };\n\n  _proto.onFragParsingInitSegment = function onFragParsingInitSegment(data) {\n    var fragCurrent = this.fragCurrent;\n    var fragNew = data.frag;\n\n    if (fragCurrent && data.id === 'main' && fragNew.sn === fragCurrent.sn && fragNew.level === fragCurrent.level && this.state === State.PARSING) {\n      var tracks = data.tracks,\n          trackName,\n          track;\n      this.audioOnly = tracks.audio && !tracks.video; // if audio track is expected to come from audio stream controller, discard any coming from main\n\n      if (this.altAudio && !this.audioOnly) {\n        delete tracks.audio;\n      } // include levelCodec in audio and video tracks\n\n\n      track = tracks.audio;\n\n      if (track) {\n        var audioCodec = this.levels[this.level].audioCodec,\n            ua = navigator.userAgent.toLowerCase();\n\n        if (audioCodec && this.audioCodecSwap) {\n          logger[\"logger\"].log('swapping playlist audio codec');\n\n          if (audioCodec.indexOf('mp4a.40.5') !== -1) {\n            audioCodec = 'mp4a.40.2';\n          } else {\n            audioCodec = 'mp4a.40.5';\n          }\n        } // in case AAC and HE-AAC audio codecs are signalled in manifest\n        // force HE-AAC , as it seems that most browsers prefers that way,\n        // except for mono streams OR on FF\n        // these conditions might need to be reviewed ...\n\n\n        if (this.audioCodecSwitch) {\n          // don't force HE-AAC if mono stream\n          if (track.metadata.channelCount !== 1 && // don't force HE-AAC if firefox\n          ua.indexOf('firefox') === -1) {\n            audioCodec = 'mp4a.40.5';\n          }\n        } // HE-AAC is broken on Android, always signal audio codec as AAC even if variant manifest states otherwise\n\n\n        if (ua.indexOf('android') !== -1 && track.container !== 'audio/mpeg') {\n          // Exclude mpeg audio\n          audioCodec = 'mp4a.40.2';\n          logger[\"logger\"].log(\"Android: force audio codec to \" + audioCodec);\n        }\n\n        track.levelCodec = audioCodec;\n        track.id = data.id;\n      }\n\n      track = tracks.video;\n\n      if (track) {\n        track.levelCodec = this.levels[this.level].videoCodec;\n        track.id = data.id;\n      }\n\n      this.hls.trigger(events[\"default\"].BUFFER_CODECS, tracks); // loop through tracks that are going to be provided to bufferController\n\n      for (trackName in tracks) {\n        track = tracks[trackName];\n        logger[\"logger\"].log(\"main track:\" + trackName + \",container:\" + track.container + \",codecs[level/parsed]=[\" + track.levelCodec + \"/\" + track.codec + \"]\");\n        var initSegment = track.initSegment;\n\n        if (initSegment) {\n          this.appended = true; // arm pending Buffering flag before appending a segment\n\n          this.pendingBuffering = true;\n          this.hls.trigger(events[\"default\"].BUFFER_APPENDING, {\n            type: trackName,\n            data: initSegment,\n            parent: 'main',\n            content: 'initSegment'\n          });\n        }\n      } // trigger handler right now\n\n\n      this.tick();\n    }\n  };\n\n  _proto.onFragParsingData = function onFragParsingData(data) {\n    var _this2 = this;\n\n    var fragCurrent = this.fragCurrent;\n    var fragNew = data.frag;\n\n    if (fragCurrent && data.id === 'main' && fragNew.sn === fragCurrent.sn && fragNew.level === fragCurrent.level && !(data.type === 'audio' && this.altAudio) && // filter out main audio if audio track is loaded through audio stream controller\n    this.state === State.PARSING) {\n      var level = this.levels[this.level],\n          frag = fragCurrent;\n\n      if (!Object(number_isFinite[\"isFiniteNumber\"])(data.endPTS)) {\n        data.endPTS = data.startPTS + fragCurrent.duration;\n        data.endDTS = data.startDTS + fragCurrent.duration;\n      }\n\n      if (data.hasAudio === true) {\n        frag.addElementaryStream(ElementaryStreamTypes.AUDIO);\n      }\n\n      if (data.hasVideo === true) {\n        frag.addElementaryStream(ElementaryStreamTypes.VIDEO);\n      }\n\n      logger[\"logger\"].log(\"Parsed \" + data.type + \",PTS:[\" + data.startPTS.toFixed(3) + \",\" + data.endPTS.toFixed(3) + \"],DTS:[\" + data.startDTS.toFixed(3) + \"/\" + data.endDTS.toFixed(3) + \"],nb:\" + data.nb + \",dropped:\" + (data.dropped || 0)); // Detect gaps in a fragment  and try to fix it by finding a keyframe in the previous fragment (see _findFragments)\n\n      if (data.type === 'video') {\n        frag.dropped = data.dropped;\n\n        if (frag.dropped) {\n          if (!frag.backtracked) {\n            var levelDetails = level.details;\n\n            if (levelDetails && frag.sn === levelDetails.startSN) {\n              logger[\"logger\"].warn('missing video frame(s) on first frag, appending with gap', frag.sn);\n            } else {\n              logger[\"logger\"].warn('missing video frame(s), backtracking fragment', frag.sn); // Return back to the IDLE state without appending to buffer\n              // Causes findFragments to backtrack a segment and find the keyframe\n              // Audio fragments arriving before video sets the nextLoadPosition, causing _findFragments to skip the backtracked fragment\n\n              this.fragmentTracker.removeFragment(frag);\n              frag.backtracked = true;\n              this.nextLoadPosition = data.startPTS;\n              this.state = State.IDLE;\n              this.fragPrevious = frag;\n\n              if (this.demuxer) {\n                this.demuxer.destroy();\n                this.demuxer = null;\n              }\n\n              this.tick();\n              return;\n            }\n          } else {\n            logger[\"logger\"].warn('Already backtracked on this fragment, appending with the gap', frag.sn);\n          }\n        } else {\n          // Only reset the backtracked flag if we've loaded the frag without any dropped frames\n          frag.backtracked = false;\n        }\n      }\n\n      var drift = updateFragPTSDTS(level.details, frag, data.startPTS, data.endPTS, data.startDTS, data.endDTS),\n          hls = this.hls;\n      hls.trigger(events[\"default\"].LEVEL_PTS_UPDATED, {\n        details: level.details,\n        level: this.level,\n        drift: drift,\n        type: data.type,\n        start: data.startPTS,\n        end: data.endPTS\n      }); // has remuxer dropped video frames located before first keyframe ?\n\n      [data.data1, data.data2].forEach(function (buffer) {\n        // only append in PARSING state (rationale is that an appending error could happen synchronously on first segment appending)\n        // in that case it is useless to append following segments\n        if (buffer && buffer.length && _this2.state === State.PARSING) {\n          _this2.appended = true; // arm pending Buffering flag before appending a segment\n\n          _this2.pendingBuffering = true;\n          hls.trigger(events[\"default\"].BUFFER_APPENDING, {\n            type: data.type,\n            data: buffer,\n            parent: 'main',\n            content: 'data'\n          });\n        }\n      }); // trigger handler right now\n\n      this.tick();\n    }\n  };\n\n  _proto.onFragParsed = function onFragParsed(data) {\n    var fragCurrent = this.fragCurrent;\n    var fragNew = data.frag;\n\n    if (fragCurrent && data.id === 'main' && fragNew.sn === fragCurrent.sn && fragNew.level === fragCurrent.level && this.state === State.PARSING) {\n      this.stats.tparsed = window.performance.now();\n      this.state = State.PARSED;\n\n      this._checkAppendedParsed();\n    }\n  };\n\n  _proto.onAudioTrackSwitching = function onAudioTrackSwitching(data) {\n    // if any URL found on new audio track, it is an alternate audio track\n    var altAudio = !!data.url,\n        trackId = data.id; // if we switch on main audio, ensure that main fragment scheduling is synced with media.buffered\n    // don't do anything if we switch to alt audio: audio stream controller is handling it.\n    // we will just have to change buffer scheduling on audioTrackSwitched\n\n    if (!altAudio) {\n      if (this.mediaBuffer !== this.media) {\n        logger[\"logger\"].log('switching on main audio, use media.buffered to schedule main fragment loading');\n        this.mediaBuffer = this.media;\n        var fragCurrent = this.fragCurrent; // we need to refill audio buffer from main: cancel any frag loading to speed up audio switch\n\n        if (fragCurrent.loader) {\n          logger[\"logger\"].log('switching to main audio track, cancel main fragment load');\n          fragCurrent.loader.abort();\n        }\n\n        this.fragCurrent = null;\n        this.fragPrevious = null; // destroy demuxer to force init segment generation (following audio switch)\n\n        if (this.demuxer) {\n          this.demuxer.destroy();\n          this.demuxer = null;\n        } // switch to IDLE state to load new fragment\n\n\n        this.state = State.IDLE;\n      }\n\n      var hls = this.hls; // switching to main audio, flush all audio and trigger track switched\n\n      hls.trigger(events[\"default\"].BUFFER_FLUSHING, {\n        startOffset: 0,\n        endOffset: Number.POSITIVE_INFINITY,\n        type: 'audio'\n      });\n      hls.trigger(events[\"default\"].AUDIO_TRACK_SWITCHED, {\n        id: trackId\n      });\n      this.altAudio = false;\n    }\n  };\n\n  _proto.onAudioTrackSwitched = function onAudioTrackSwitched(data) {\n    var trackId = data.id,\n        altAudio = !!this.hls.audioTracks[trackId].url;\n\n    if (altAudio) {\n      var videoBuffer = this.videoBuffer; // if we switched on alternate audio, ensure that main fragment scheduling is synced with video sourcebuffer buffered\n\n      if (videoBuffer && this.mediaBuffer !== videoBuffer) {\n        logger[\"logger\"].log('switching on alternate audio, use video.buffered to schedule main fragment loading');\n        this.mediaBuffer = videoBuffer;\n      }\n    }\n\n    this.altAudio = altAudio;\n    this.tick();\n  };\n\n  _proto.onBufferCreated = function onBufferCreated(data) {\n    var tracks = data.tracks,\n        mediaTrack,\n        name,\n        alternate = false;\n\n    for (var type in tracks) {\n      var track = tracks[type];\n\n      if (track.id === 'main') {\n        name = type;\n        mediaTrack = track; // keep video source buffer reference\n\n        if (type === 'video') {\n          this.videoBuffer = tracks[type].buffer;\n        }\n      } else {\n        alternate = true;\n      }\n    }\n\n    if (alternate && mediaTrack) {\n      logger[\"logger\"].log(\"alternate track found, use \" + name + \".buffered to schedule main fragment loading\");\n      this.mediaBuffer = mediaTrack.buffer;\n    } else {\n      this.mediaBuffer = this.media;\n    }\n  };\n\n  _proto.onBufferAppended = function onBufferAppended(data) {\n    if (data.parent === 'main') {\n      var state = this.state;\n\n      if (state === State.PARSING || state === State.PARSED) {\n        // check if all buffers have been appended\n        this.pendingBuffering = data.pending > 0;\n\n        this._checkAppendedParsed();\n      }\n    }\n  };\n\n  _proto._checkAppendedParsed = function _checkAppendedParsed() {\n    // trigger handler right now\n    if (this.state === State.PARSED && (!this.appended || !this.pendingBuffering)) {\n      var frag = this.fragCurrent;\n\n      if (frag) {\n        var media = this.mediaBuffer ? this.mediaBuffer : this.media;\n        logger[\"logger\"].log(\"main buffered : \" + time_ranges.toString(media.buffered));\n        this.fragPrevious = frag;\n        var stats = this.stats;\n        stats.tbuffered = window.performance.now(); // we should get rid of this.fragLastKbps\n\n        this.fragLastKbps = Math.round(8 * stats.total / (stats.tbuffered - stats.tfirst));\n        this.hls.trigger(events[\"default\"].FRAG_BUFFERED, {\n          stats: stats,\n          frag: frag,\n          id: 'main'\n        });\n        this.state = State.IDLE;\n      } // Do not tick when _seekToStartPos needs to be called as seeking to the start can fail on live streams at this point\n\n\n      if (this.loadedmetadata || this.startPosition <= 0) {\n        this.tick();\n      }\n    }\n  };\n\n  _proto.onError = function onError(data) {\n    var frag = data.frag || this.fragCurrent; // don't handle frag error not related to main fragment\n\n    if (frag && frag.type !== 'main') {\n      return;\n    } // 0.5 : tolerance needed as some browsers stalls playback before reaching buffered end\n\n\n    var mediaBuffered = !!this.media && BufferHelper.isBuffered(this.media, this.media.currentTime) && BufferHelper.isBuffered(this.media, this.media.currentTime + 0.5);\n\n    switch (data.details) {\n      case errors[\"ErrorDetails\"].FRAG_LOAD_ERROR:\n      case errors[\"ErrorDetails\"].FRAG_LOAD_TIMEOUT:\n      case errors[\"ErrorDetails\"].KEY_LOAD_ERROR:\n      case errors[\"ErrorDetails\"].KEY_LOAD_TIMEOUT:\n        if (!data.fatal) {\n          // keep retrying until the limit will be reached\n          if (this.fragLoadError + 1 <= this.config.fragLoadingMaxRetry) {\n            // exponential backoff capped to config.fragLoadingMaxRetryTimeout\n            var delay = Math.min(Math.pow(2, this.fragLoadError) * this.config.fragLoadingRetryDelay, this.config.fragLoadingMaxRetryTimeout);\n            logger[\"logger\"].warn(\"mediaController: frag loading failed, retry in \" + delay + \" ms\");\n            this.retryDate = window.performance.now() + delay; // retry loading state\n            // if loadedmetadata is not set, it means that we are emergency switch down on first frag\n            // in that case, reset startFragRequested flag\n\n            if (!this.loadedmetadata) {\n              this.startFragRequested = false;\n              this.nextLoadPosition = this.startPosition;\n            }\n\n            this.fragLoadError++;\n            this.state = State.FRAG_LOADING_WAITING_RETRY;\n          } else {\n            logger[\"logger\"].error(\"mediaController: \" + data.details + \" reaches max retry, redispatch as fatal ...\"); // switch error to fatal\n\n            data.fatal = true;\n            this.state = State.ERROR;\n          }\n        }\n\n        break;\n\n      case errors[\"ErrorDetails\"].LEVEL_LOAD_ERROR:\n      case errors[\"ErrorDetails\"].LEVEL_LOAD_TIMEOUT:\n        if (this.state !== State.ERROR) {\n          if (data.fatal) {\n            // if fatal error, stop processing\n            this.state = State.ERROR;\n            logger[\"logger\"].warn(\"streamController: \" + data.details + \",switch to \" + this.state + \" state ...\");\n          } else {\n            // in case of non fatal error while loading level, if level controller is not retrying to load level , switch back to IDLE\n            if (!data.levelRetry && this.state === State.WAITING_LEVEL) {\n              this.state = State.IDLE;\n            }\n          }\n        }\n\n        break;\n\n      case errors[\"ErrorDetails\"].BUFFER_FULL_ERROR:\n        // if in appending state\n        if (data.parent === 'main' && (this.state === State.PARSING || this.state === State.PARSED)) {\n          // reduce max buf len if current position is buffered\n          if (mediaBuffered) {\n            this._reduceMaxBufferLength(this.config.maxBufferLength);\n\n            this.state = State.IDLE;\n          } else {\n            // current position is not buffered, but browser is still complaining about buffer full error\n            // this happens on IE/Edge, refer to https://github.com/video-dev/hls.js/pull/708\n            // in that case flush the whole buffer to recover\n            logger[\"logger\"].warn('buffer full error also media.currentTime is not buffered, flush everything');\n            this.fragCurrent = null; // flush everything\n\n            this.flushMainBuffer(0, Number.POSITIVE_INFINITY);\n          }\n        }\n\n        break;\n\n      default:\n        break;\n    }\n  };\n\n  _proto._reduceMaxBufferLength = function _reduceMaxBufferLength(minLength) {\n    var config = this.config;\n\n    if (config.maxMaxBufferLength >= minLength) {\n      // reduce max buffer length as it might be too high. we do this to avoid loop flushing ...\n      config.maxMaxBufferLength /= 2;\n      logger[\"logger\"].warn(\"main:reduce max buffer length to \" + config.maxMaxBufferLength + \"s\");\n      return true;\n    }\n\n    return false;\n  }\n  /**\n   * Checks the health of the buffer and attempts to resolve playback stalls.\n   * @private\n   */\n  ;\n\n  _proto._checkBuffer = function _checkBuffer() {\n    var media = this.media;\n\n    if (!media || media.readyState === 0) {\n      // Exit early if we don't have media or if the media hasn't bufferd anything yet (readyState 0)\n      return;\n    }\n\n    var mediaBuffer = this.mediaBuffer ? this.mediaBuffer : media;\n    var buffered = mediaBuffer.buffered;\n\n    if (!this.loadedmetadata && buffered.length) {\n      this.loadedmetadata = true;\n\n      this._seekToStartPos();\n    } else if (this.immediateSwitch) {\n      this.immediateLevelSwitchEnd();\n    } else {\n      this.gapController.poll(this.lastCurrentTime, buffered);\n    }\n  };\n\n  _proto.onFragLoadEmergencyAborted = function onFragLoadEmergencyAborted() {\n    this.state = State.IDLE; // if loadedmetadata is not set, it means that we are emergency switch down on first frag\n    // in that case, reset startFragRequested flag\n\n    if (!this.loadedmetadata) {\n      this.startFragRequested = false;\n      this.nextLoadPosition = this.startPosition;\n    }\n\n    this.tick();\n  };\n\n  _proto.onBufferFlushed = function onBufferFlushed() {\n    /* after successful buffer flushing, filter flushed fragments from bufferedFrags\n      use mediaBuffered instead of media (so that we will check against video.buffered ranges in case of alt audio track)\n    */\n    var media = this.mediaBuffer ? this.mediaBuffer : this.media;\n\n    if (media) {\n      // filter fragments potentially evicted from buffer. this is to avoid memleak on live streams\n      var elementaryStreamType = this.audioOnly ? ElementaryStreamTypes.AUDIO : ElementaryStreamTypes.VIDEO;\n      this.fragmentTracker.detectEvictedFragments(elementaryStreamType, media.buffered);\n    } // move to IDLE once flush complete. this should trigger new fragment loading\n\n\n    this.state = State.IDLE; // reset reference to frag\n\n    this.fragPrevious = null;\n  };\n\n  _proto.onLevelsUpdated = function onLevelsUpdated(data) {\n    this.levels = data.levels;\n  };\n\n  _proto.swapAudioCodec = function swapAudioCodec() {\n    this.audioCodecSwap = !this.audioCodecSwap;\n  }\n  /**\n   * Seeks to the set startPosition if not equal to the mediaElement's current time.\n   * @private\n   */\n  ;\n\n  _proto._seekToStartPos = function _seekToStartPos() {\n    var media = this.media,\n        startPosition = this.startPosition;\n    var currentTime = media.currentTime; // only adjust currentTime if different from startPosition or if startPosition not buffered\n    // at that stage, there should be only one buffered range, as we reach that code after first fragment has been buffered\n\n    if (currentTime !== startPosition && startPosition >= 0) {\n      if (media.seeking) {\n        logger[\"logger\"].log(\"could not seek to \" + startPosition + \", already seeking at \" + currentTime);\n        return;\n      }\n\n      logger[\"logger\"].log(\"seek to target start position \" + startPosition + \" from current time \" + currentTime + \". ready state \" + media.readyState);\n      media.currentTime = startPosition;\n    }\n  };\n\n  _proto._getAudioCodec = function _getAudioCodec(currentLevel) {\n    var audioCodec = this.config.defaultAudioCodec || currentLevel.audioCodec;\n\n    if (this.audioCodecSwap) {\n      logger[\"logger\"].log('swapping playlist audio codec');\n\n      if (audioCodec) {\n        if (audioCodec.indexOf('mp4a.40.5') !== -1) {\n          audioCodec = 'mp4a.40.2';\n        } else {\n          audioCodec = 'mp4a.40.5';\n        }\n      }\n    }\n\n    return audioCodec;\n  };\n\n  stream_controller_createClass(StreamController, [{\n    key: \"state\",\n    set: function set(nextState) {\n      if (this.state !== nextState) {\n        var previousState = this.state;\n        this._state = nextState;\n        logger[\"logger\"].log(\"main stream-controller: \" + previousState + \"->\" + nextState);\n        this.hls.trigger(events[\"default\"].STREAM_STATE_TRANSITION, {\n          previousState: previousState,\n          nextState: nextState\n        });\n      }\n    },\n    get: function get() {\n      return this._state;\n    }\n  }, {\n    key: \"currentLevel\",\n    get: function get() {\n      var media = this.media;\n\n      if (media) {\n        var frag = this.getBufferedFrag(media.currentTime);\n\n        if (frag) {\n          return frag.level;\n        }\n      }\n\n      return -1;\n    }\n  }, {\n    key: \"nextBufferedFrag\",\n    get: function get() {\n      var media = this.media;\n\n      if (media) {\n        // first get end range of current fragment\n        return this.followingBufferedFrag(this.getBufferedFrag(media.currentTime));\n      } else {\n        return null;\n      }\n    }\n  }, {\n    key: \"nextLevel\",\n    get: function get() {\n      var frag = this.nextBufferedFrag;\n\n      if (frag) {\n        return frag.level;\n      } else {\n        return -1;\n      }\n    }\n  }, {\n    key: \"liveSyncPosition\",\n    get: function get() {\n      return this._liveSyncPosition;\n    },\n    set: function set(value) {\n      this._liveSyncPosition = value;\n    }\n  }]);\n\n  return StreamController;\n}(base_stream_controller_BaseStreamController);\n\n/* harmony default export */ var stream_controller = (stream_controller_StreamController);\n// CONCATENATED MODULE: ./src/controller/level-controller.js\nfunction level_controller_defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if (\"value\" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }\n\nfunction level_controller_createClass(Constructor, protoProps, staticProps) { if (protoProps) level_controller_defineProperties(Constructor.prototype, protoProps); if (staticProps) level_controller_defineProperties(Constructor, staticProps); return Constructor; }\n\nfunction level_controller_inheritsLoose(subClass, superClass) { subClass.prototype = Object.create(superClass.prototype); subClass.prototype.constructor = subClass; subClass.__proto__ = superClass; }\n\n/*\n * Level Controller\n*/\n\n\n\n\n\n\nvar chromeOrFirefox;\n\nvar level_controller_LevelController = /*#__PURE__*/function (_EventHandler) {\n  level_controller_inheritsLoose(LevelController, _EventHandler);\n\n  function LevelController(hls) {\n    var _this;\n\n    _this = _EventHandler.call(this, hls, events[\"default\"].MANIFEST_LOADED, events[\"default\"].LEVEL_LOADED, events[\"default\"].AUDIO_TRACK_SWITCHED, events[\"default\"].FRAG_LOADED, events[\"default\"].ERROR) || this;\n    _this.canload = false;\n    _this.currentLevelIndex = null;\n    _this.manualLevelIndex = -1;\n    _this.timer = null;\n    chromeOrFirefox = /chrome|firefox/.test(navigator.userAgent.toLowerCase());\n    return _this;\n  }\n\n  var _proto = LevelController.prototype;\n\n  _proto.onHandlerDestroying = function onHandlerDestroying() {\n    this.clearTimer();\n    this.manualLevelIndex = -1;\n  };\n\n  _proto.clearTimer = function clearTimer() {\n    if (this.timer !== null) {\n      clearTimeout(this.timer);\n      this.timer = null;\n    }\n  };\n\n  _proto.startLoad = function startLoad() {\n    var levels = this._levels;\n    this.canload = true;\n    this.levelRetryCount = 0; // clean up live level details to force reload them, and reset load errors\n\n    if (levels) {\n      levels.forEach(function (level) {\n        level.loadError = 0;\n        var levelDetails = level.details;\n\n        if (levelDetails && levelDetails.live) {\n          level.details = undefined;\n        }\n      });\n    } // speed up live playlist refresh if timer exists\n\n\n    if (this.timer !== null) {\n      this.loadLevel();\n    }\n  };\n\n  _proto.stopLoad = function stopLoad() {\n    this.canload = false;\n  };\n\n  _proto.onManifestLoaded = function onManifestLoaded(data) {\n    var levels = [];\n    var audioTracks = [];\n    var bitrateStart;\n    var levelSet = {};\n    var levelFromSet = null;\n    var videoCodecFound = false;\n    var audioCodecFound = false; // regroup redundant levels together\n\n    data.levels.forEach(function (level) {\n      var attributes = level.attrs;\n      level.loadError = 0;\n      level.fragmentError = false;\n      videoCodecFound = videoCodecFound || !!level.videoCodec;\n      audioCodecFound = audioCodecFound || !!level.audioCodec; // erase audio codec info if browser does not support mp4a.40.34.\n      // demuxer will autodetect codec and fallback to mpeg/audio\n\n      if (chromeOrFirefox && level.audioCodec && level.audioCodec.indexOf('mp4a.40.34') !== -1) {\n        level.audioCodec = undefined;\n      }\n\n      levelFromSet = levelSet[level.bitrate]; // FIXME: we would also have to match the resolution here\n\n      if (!levelFromSet) {\n        level.url = [level.url];\n        level.urlId = 0;\n        levelSet[level.bitrate] = level;\n        levels.push(level);\n      } else {\n        levelFromSet.url.push(level.url);\n      }\n\n      if (attributes) {\n        if (attributes.AUDIO) {\n          addGroupId(levelFromSet || level, 'audio', attributes.AUDIO);\n        }\n\n        if (attributes.SUBTITLES) {\n          addGroupId(levelFromSet || level, 'text', attributes.SUBTITLES);\n        }\n      }\n    }); // remove audio-only level if we also have levels with audio+video codecs signalled\n\n    if (videoCodecFound && audioCodecFound) {\n      levels = levels.filter(function (_ref) {\n        var videoCodec = _ref.videoCodec;\n        return !!videoCodec;\n      });\n    } // only keep levels with supported audio/video codecs\n\n\n    levels = levels.filter(function (_ref2) {\n      var audioCodec = _ref2.audioCodec,\n          videoCodec = _ref2.videoCodec;\n      return (!audioCodec || isCodecSupportedInMp4(audioCodec, 'audio')) && (!videoCodec || isCodecSupportedInMp4(videoCodec, 'video'));\n    });\n\n    if (data.audioTracks) {\n      audioTracks = data.audioTracks.filter(function (track) {\n        return !track.audioCodec || isCodecSupportedInMp4(track.audioCodec, 'audio');\n      }); // Reassign id's after filtering since they're used as array indices\n\n      audioTracks.forEach(function (track, index) {\n        track.id = index;\n      });\n    }\n\n    if (levels.length > 0) {\n      // start bitrate is the first bitrate of the manifest\n      bitrateStart = levels[0].bitrate; // sort level on bitrate\n\n      levels.sort(function (a, b) {\n        return a.bitrate - b.bitrate;\n      });\n      this._levels = levels; // find index of first level in sorted levels\n\n      for (var i = 0; i < levels.length; i++) {\n        if (levels[i].bitrate === bitrateStart) {\n          this._firstLevel = i;\n          logger[\"logger\"].log(\"manifest loaded,\" + levels.length + \" level(s) found, first bitrate:\" + bitrateStart);\n          break;\n        }\n      } // Audio is only alternate if manifest include a URI along with the audio group tag,\n      // and this is not an audio-only stream where levels contain audio-only\n\n\n      var audioOnly = audioCodecFound && !videoCodecFound;\n      this.hls.trigger(events[\"default\"].MANIFEST_PARSED, {\n        levels: levels,\n        audioTracks: audioTracks,\n        firstLevel: this._firstLevel,\n        stats: data.stats,\n        audio: audioCodecFound,\n        video: videoCodecFound,\n        altAudio: !audioOnly && audioTracks.some(function (t) {\n          return !!t.url;\n        })\n      });\n    } else {\n      this.hls.trigger(events[\"default\"].ERROR, {\n        type: errors[\"ErrorTypes\"].MEDIA_ERROR,\n        details: errors[\"ErrorDetails\"].MANIFEST_INCOMPATIBLE_CODECS_ERROR,\n        fatal: true,\n        url: this.hls.url,\n        reason: 'no level with compatible codecs found in manifest'\n      });\n    }\n  };\n\n  _proto.setLevelInternal = function setLevelInternal(newLevel) {\n    var levels = this._levels;\n    var hls = this.hls; // check if level idx is valid\n\n    if (newLevel >= 0 && newLevel < levels.length) {\n      // stopping live reloading timer if any\n      this.clearTimer();\n\n      if (this.currentLevelIndex !== newLevel) {\n        logger[\"logger\"].log(\"switching to level \" + newLevel);\n        this.currentLevelIndex = newLevel;\n        var levelProperties = levels[newLevel];\n        levelProperties.level = newLevel;\n        hls.trigger(events[\"default\"].LEVEL_SWITCHING, levelProperties);\n      }\n\n      var level = levels[newLevel];\n      var levelDetails = level.details; // check if we need to load playlist for this level\n\n      if (!levelDetails || levelDetails.live) {\n        // level not retrieved yet, or live playlist we need to (re)load it\n        var urlId = level.urlId;\n        hls.trigger(events[\"default\"].LEVEL_LOADING, {\n          url: level.url[urlId],\n          level: newLevel,\n          id: urlId\n        });\n      }\n    } else {\n      // invalid level id given, trigger error\n      hls.trigger(events[\"default\"].ERROR, {\n        type: errors[\"ErrorTypes\"].OTHER_ERROR,\n        details: errors[\"ErrorDetails\"].LEVEL_SWITCH_ERROR,\n        level: newLevel,\n        fatal: false,\n        reason: 'invalid level idx'\n      });\n    }\n  };\n\n  _proto.onError = function onError(data) {\n    if (data.fatal) {\n      if (data.type === errors[\"ErrorTypes\"].NETWORK_ERROR) {\n        this.clearTimer();\n      }\n\n      return;\n    }\n\n    var levelError = false,\n        fragmentError = false;\n    var levelIndex; // try to recover not fatal errors\n\n    switch (data.details) {\n      case errors[\"ErrorDetails\"].FRAG_LOAD_ERROR:\n      case errors[\"ErrorDetails\"].FRAG_LOAD_TIMEOUT:\n      case errors[\"ErrorDetails\"].KEY_LOAD_ERROR:\n      case errors[\"ErrorDetails\"].KEY_LOAD_TIMEOUT:\n        levelIndex = data.frag.level;\n        fragmentError = true;\n        break;\n\n      case errors[\"ErrorDetails\"].LEVEL_LOAD_ERROR:\n      case errors[\"ErrorDetails\"].LEVEL_LOAD_TIMEOUT:\n        levelIndex = data.context.level;\n        levelError = true;\n        break;\n\n      case errors[\"ErrorDetails\"].REMUX_ALLOC_ERROR:\n        levelIndex = data.level;\n        levelError = true;\n        break;\n    }\n\n    if (levelIndex !== undefined) {\n      this.recoverLevel(data, levelIndex, levelError, fragmentError);\n    }\n  }\n  /**\n   * Switch to a redundant stream if any available.\n   * If redundant stream is not available, emergency switch down if ABR mode is enabled.\n   *\n   * @param {Object} errorEvent\n   * @param {Number} levelIndex current level index\n   * @param {Boolean} levelError\n   * @param {Boolean} fragmentError\n   */\n  // FIXME Find a better abstraction where fragment/level retry management is well decoupled\n  ;\n\n  _proto.recoverLevel = function recoverLevel(errorEvent, levelIndex, levelError, fragmentError) {\n    var _this2 = this;\n\n    var config = this.hls.config;\n    var errorDetails = errorEvent.details;\n    var level = this._levels[levelIndex];\n    var redundantLevels, delay, nextLevel;\n    level.loadError++;\n    level.fragmentError = fragmentError;\n\n    if (levelError) {\n      if (this.levelRetryCount + 1 <= config.levelLoadingMaxRetry) {\n        // exponential backoff capped to max retry timeout\n        delay = Math.min(Math.pow(2, this.levelRetryCount) * config.levelLoadingRetryDelay, config.levelLoadingMaxRetryTimeout); // Schedule level reload\n\n        this.timer = setTimeout(function () {\n          return _this2.loadLevel();\n        }, delay); // boolean used to inform stream controller not to switch back to IDLE on non fatal error\n\n        errorEvent.levelRetry = true;\n        this.levelRetryCount++;\n        logger[\"logger\"].warn(\"level controller, \" + errorDetails + \", retry in \" + delay + \" ms, current retry count is \" + this.levelRetryCount);\n      } else {\n        logger[\"logger\"].error(\"level controller, cannot recover from \" + errorDetails + \" error\");\n        this.currentLevelIndex = null; // stopping live reloading timer if any\n\n        this.clearTimer(); // switch error to fatal\n\n        errorEvent.fatal = true;\n        return;\n      }\n    } // Try any redundant streams if available for both errors: level and fragment\n    // If level.loadError reaches redundantLevels it means that we tried them all, no hope  => let's switch down\n\n\n    if (levelError || fragmentError) {\n      redundantLevels = level.url.length;\n\n      if (redundantLevels > 1 && level.loadError < redundantLevels) {\n        level.urlId = (level.urlId + 1) % redundantLevels;\n        level.details = undefined;\n        logger[\"logger\"].warn(\"level controller, \" + errorDetails + \" for level \" + levelIndex + \": switching to redundant URL-id \" + level.urlId); // console.log('Current audio track group ID:', this.hls.audioTracks[this.hls.audioTrack].groupId);\n        // console.log('New video quality level audio group id:', level.attrs.AUDIO);\n      } else {\n        // Search for available level\n        if (this.manualLevelIndex === -1) {\n          // When lowest level has been reached, let's start hunt from the top\n          nextLevel = levelIndex === 0 ? this._levels.length - 1 : levelIndex - 1;\n          logger[\"logger\"].warn(\"level controller, \" + errorDetails + \": switch to \" + nextLevel);\n          this.hls.nextAutoLevel = this.currentLevelIndex = nextLevel;\n        } else if (fragmentError) {\n          // Allow fragment retry as long as configuration allows.\n          // reset this._level so that another call to set level() will trigger again a frag load\n          logger[\"logger\"].warn(\"level controller, \" + errorDetails + \": reload a fragment\");\n          this.currentLevelIndex = null;\n        }\n      }\n    }\n  } // reset errors on the successful load of a fragment\n  ;\n\n  _proto.onFragLoaded = function onFragLoaded(_ref3) {\n    var frag = _ref3.frag;\n\n    if (frag !== undefined && frag.type === 'main') {\n      var level = this._levels[frag.level];\n\n      if (level !== undefined) {\n        level.fragmentError = false;\n        level.loadError = 0;\n        this.levelRetryCount = 0;\n      }\n    }\n  };\n\n  _proto.onLevelLoaded = function onLevelLoaded(data) {\n    var _this3 = this;\n\n    var level = data.level,\n        details = data.details; // only process level loaded events matching with expected level\n\n    if (level !== this.currentLevelIndex) {\n      return;\n    }\n\n    var curLevel = this._levels[level]; // reset level load error counter on successful level loaded only if there is no issues with fragments\n\n    if (!curLevel.fragmentError) {\n      curLevel.loadError = 0;\n      this.levelRetryCount = 0;\n    } // if current playlist is a live playlist, arm a timer to reload it\n\n\n    if (details.live) {\n      var reloadInterval = computeReloadInterval(curLevel.details, details, data.stats.trequest);\n      logger[\"logger\"].log(\"live playlist, reload in \" + Math.round(reloadInterval) + \" ms\");\n      this.timer = setTimeout(function () {\n        return _this3.loadLevel();\n      }, reloadInterval);\n    } else {\n      this.clearTimer();\n    }\n  };\n\n  _proto.onAudioTrackSwitched = function onAudioTrackSwitched(data) {\n    var audioGroupId = this.hls.audioTracks[data.id].groupId;\n    var currentLevel = this.hls.levels[this.currentLevelIndex];\n\n    if (!currentLevel) {\n      return;\n    }\n\n    if (currentLevel.audioGroupIds) {\n      var urlId = -1;\n\n      for (var i = 0; i < currentLevel.audioGroupIds.length; i++) {\n        if (currentLevel.audioGroupIds[i] === audioGroupId) {\n          urlId = i;\n          break;\n        }\n      }\n\n      if (urlId !== currentLevel.urlId) {\n        currentLevel.urlId = urlId;\n        this.startLoad();\n      }\n    }\n  };\n\n  _proto.loadLevel = function loadLevel() {\n    logger[\"logger\"].debug('call to loadLevel');\n\n    if (this.currentLevelIndex !== null && this.canload) {\n      var levelObject = this._levels[this.currentLevelIndex];\n\n      if (typeof levelObject === 'object' && levelObject.url.length > 0) {\n        var level = this.currentLevelIndex;\n        var id = levelObject.urlId;\n        var url = levelObject.url[id];\n        logger[\"logger\"].log(\"Attempt loading level index \" + level + \" with URL-id \" + id); // console.log('Current audio track group ID:', this.hls.audioTracks[this.hls.audioTrack].groupId);\n        // console.log('New video quality level audio group id:', levelObject.attrs.AUDIO, level);\n\n        this.hls.trigger(events[\"default\"].LEVEL_LOADING, {\n          url: url,\n          level: level,\n          id: id\n        });\n      }\n    }\n  };\n\n  _proto.removeLevel = function removeLevel(levelIndex, urlId) {\n    var levels = this.levels.filter(function (level, index) {\n      if (index !== levelIndex) {\n        return true;\n      }\n\n      if (level.url.length > 1 && urlId !== undefined) {\n        level.url = level.url.filter(function (url, id) {\n          return id !== urlId;\n        });\n        level.urlId = 0;\n        return true;\n      }\n\n      return false;\n    }).map(function (level, index) {\n      var details = level.details;\n\n      if (details && details.fragments) {\n        details.fragments.forEach(function (fragment) {\n          fragment.level = index;\n        });\n      }\n\n      return level;\n    });\n    this._levels = levels;\n    this.hls.trigger(events[\"default\"].LEVELS_UPDATED, {\n      levels: levels\n    });\n  };\n\n  level_controller_createClass(LevelController, [{\n    key: \"levels\",\n    get: function get() {\n      return this._levels;\n    }\n  }, {\n    key: \"level\",\n    get: function get() {\n      return this.currentLevelIndex;\n    },\n    set: function set(newLevel) {\n      var levels = this._levels;\n\n      if (levels) {\n        newLevel = Math.min(newLevel, levels.length - 1);\n\n        if (this.currentLevelIndex !== newLevel || !levels[newLevel].details) {\n          this.setLevelInternal(newLevel);\n        }\n      }\n    }\n  }, {\n    key: \"manualLevel\",\n    get: function get() {\n      return this.manualLevelIndex;\n    },\n    set: function set(newLevel) {\n      this.manualLevelIndex = newLevel;\n\n      if (this._startLevel === undefined) {\n        this._startLevel = newLevel;\n      }\n\n      if (newLevel !== -1) {\n        this.level = newLevel;\n      }\n    }\n  }, {\n    key: \"firstLevel\",\n    get: function get() {\n      return this._firstLevel;\n    },\n    set: function set(newLevel) {\n      this._firstLevel = newLevel;\n    }\n  }, {\n    key: \"startLevel\",\n    get: function get() {\n      // hls.startLevel takes precedence over config.startLevel\n      // if none of these values are defined, fallback on this._firstLevel (first quality level appearing in variant manifest)\n      if (this._startLevel === undefined) {\n        var configStartLevel = this.hls.config.startLevel;\n\n        if (configStartLevel !== undefined) {\n          return configStartLevel;\n        } else {\n          return this._firstLevel;\n        }\n      } else {\n        return this._startLevel;\n      }\n    },\n    set: function set(newLevel) {\n      this._startLevel = newLevel;\n    }\n  }, {\n    key: \"nextLoadLevel\",\n    get: function get() {\n      if (this.manualLevelIndex !== -1) {\n        return this.manualLevelIndex;\n      } else {\n        return this.hls.nextAutoLevel;\n      }\n    },\n    set: function set(nextLevel) {\n      this.level = nextLevel;\n\n      if (this.manualLevelIndex === -1) {\n        this.hls.nextAutoLevel = nextLevel;\n      }\n    }\n  }]);\n\n  return LevelController;\n}(event_handler);\n\n\n// EXTERNAL MODULE: ./src/demux/id3.js\nvar id3 = __webpack_require__(\"./src/demux/id3.js\");\n\n// CONCATENATED MODULE: ./src/utils/texttrack-utils.ts\nfunction sendAddTrackEvent(track, videoEl) {\n  var event;\n\n  try {\n    event = new Event('addtrack');\n  } catch (err) {\n    // for IE11\n    event = document.createEvent('Event');\n    event.initEvent('addtrack', false, false);\n  }\n\n  event.track = track;\n  videoEl.dispatchEvent(event);\n}\nfunction clearCurrentCues(track) {\n  if (track === null || track === void 0 ? void 0 : track.cues) {\n    while (track.cues.length > 0) {\n      track.removeCue(track.cues[0]);\n    }\n  }\n}\n/**\n *  Given a list of Cues, finds the closest cue matching the given time.\n *  Modified verison of binary search O(log(n)).\n *\n * @export\n * @param {(TextTrackCueList | TextTrackCue[])} cues - List of cues.\n * @param {number} time - Target time, to find closest cue to.\n * @returns {TextTrackCue}\n */\n\nfunction getClosestCue(cues, time) {\n  // If the offset is less than the first element, the first element is the closest.\n  if (time < cues[0].endTime) {\n    return cues[0];\n  } // If the offset is greater than the last cue, the last is the closest.\n\n\n  if (time > cues[cues.length - 1].endTime) {\n    return cues[cues.length - 1];\n  }\n\n  var left = 0;\n  var right = cues.length - 1;\n\n  while (left <= right) {\n    var mid = Math.floor((right + left) / 2);\n\n    if (time < cues[mid].endTime) {\n      right = mid - 1;\n    } else if (time > cues[mid].endTime) {\n      left = mid + 1;\n    } else {\n      // If it's not lower or higher, it must be equal.\n      return cues[mid];\n    }\n  } // At this point, left and right have swapped.\n  // No direct match was found, left or right element must be the closest. Check which one has the smallest diff.\n\n\n  return cues[left].endTime - time < time - cues[right].endTime ? cues[left] : cues[right];\n}\n// CONCATENATED MODULE: ./src/controller/id3-track-controller.js\nfunction id3_track_controller_inheritsLoose(subClass, superClass) { subClass.prototype = Object.create(superClass.prototype); subClass.prototype.constructor = subClass; subClass.__proto__ = superClass; }\n\n/*\n * id3 metadata track controller\n*/\n\n\n\n\n\n\nvar id3_track_controller_ID3TrackController = /*#__PURE__*/function (_EventHandler) {\n  id3_track_controller_inheritsLoose(ID3TrackController, _EventHandler);\n\n  function ID3TrackController(hls) {\n    var _this;\n\n    _this = _EventHandler.call(this, hls, events[\"default\"].MEDIA_ATTACHED, events[\"default\"].MEDIA_DETACHING, events[\"default\"].FRAG_PARSING_METADATA, events[\"default\"].LIVE_BACK_BUFFER_REACHED) || this;\n    _this.id3Track = undefined;\n    _this.media = undefined;\n    return _this;\n  }\n\n  var _proto = ID3TrackController.prototype;\n\n  _proto.destroy = function destroy() {\n    event_handler.prototype.destroy.call(this);\n  } // Add ID3 metatadata text track.\n  ;\n\n  _proto.onMediaAttached = function onMediaAttached(data) {\n    this.media = data.media;\n\n    if (!this.media) {}\n  };\n\n  _proto.onMediaDetaching = function onMediaDetaching() {\n    clearCurrentCues(this.id3Track);\n    this.id3Track = undefined;\n    this.media = undefined;\n  };\n\n  _proto.getID3Track = function getID3Track(textTracks) {\n    for (var i = 0; i < textTracks.length; i++) {\n      var textTrack = textTracks[i];\n\n      if (textTrack.kind === 'metadata' && textTrack.label === 'id3') {\n        // send 'addtrack' when reusing the textTrack for metadata,\n        // same as what we do for captions\n        sendAddTrackEvent(textTrack, this.media);\n        return textTrack;\n      }\n    }\n\n    return this.media.addTextTrack('metadata', 'id3');\n  };\n\n  _proto.onFragParsingMetadata = function onFragParsingMetadata(data) {\n    var fragment = data.frag;\n    var samples = data.samples; // create track dynamically\n\n    if (!this.id3Track) {\n      this.id3Track = this.getID3Track(this.media.textTracks);\n      this.id3Track.mode = 'hidden';\n    } // Attempt to recreate Safari functionality by creating\n    // WebKitDataCue objects when available and store the decoded\n    // ID3 data in the value property of the cue\n\n\n    var Cue = window.WebKitDataCue || window.VTTCue || window.TextTrackCue;\n\n    for (var i = 0; i < samples.length; i++) {\n      var frames = id3[\"default\"].getID3Frames(samples[i].data);\n\n      if (frames) {\n        // Ensure the pts is positive - sometimes it's reported as a small negative number\n        var startTime = Math.max(samples[i].pts, 0);\n        var endTime = i < samples.length - 1 ? samples[i + 1].pts : fragment.endPTS;\n\n        if (!endTime) {\n          endTime = fragment.start + fragment.duration;\n        }\n\n        if (startTime === endTime) {\n          // Give a slight bump to the endTime if it's equal to startTime to avoid a SyntaxError in IE\n          endTime += 0.0001;\n        } else if (startTime > endTime) {\n          logger[\"logger\"].warn('detected an id3 sample with endTime < startTime, adjusting endTime to (startTime + 0.25)');\n          endTime = startTime + 0.25;\n        }\n\n        for (var j = 0; j < frames.length; j++) {\n          var frame = frames[j]; // Safari doesn't put the timestamp frame in the TextTrack\n\n          if (!id3[\"default\"].isTimeStampFrame(frame)) {\n            var cue = new Cue(startTime, endTime, '');\n            cue.value = frame;\n            this.id3Track.addCue(cue);\n          }\n        }\n      }\n    }\n  };\n\n  _proto.onLiveBackBufferReached = function onLiveBackBufferReached(_ref) {\n    var bufferEnd = _ref.bufferEnd;\n    var id3Track = this.id3Track;\n\n    if (!id3Track || !id3Track.cues || !id3Track.cues.length) {\n      return;\n    }\n\n    var foundCue = getClosestCue(id3Track.cues, bufferEnd);\n\n    if (!foundCue) {\n      return;\n    }\n\n    while (id3Track.cues[0] !== foundCue) {\n      id3Track.removeCue(id3Track.cues[0]);\n    }\n  };\n\n  return ID3TrackController;\n}(event_handler);\n\n/* harmony default export */ var id3_track_controller = (id3_track_controller_ID3TrackController);\n// CONCATENATED MODULE: ./src/is-supported.ts\n\nfunction is_supported_isSupported() {\n  var mediaSource = getMediaSource();\n\n  if (!mediaSource) {\n    return false;\n  }\n\n  var sourceBuffer = self.SourceBuffer || self.WebKitSourceBuffer;\n  var isTypeSupported = mediaSource && typeof mediaSource.isTypeSupported === 'function' && mediaSource.isTypeSupported('video/mp4; codecs=\"avc1.42E01E,mp4a.40.2\"'); // if SourceBuffer is exposed ensure its API is valid\n  // safari and old version of Chrome doe not expose SourceBuffer globally so checking SourceBuffer.prototype is impossible\n\n  var sourceBufferValidAPI = !sourceBuffer || sourceBuffer.prototype && typeof sourceBuffer.prototype.appendBuffer === 'function' && typeof sourceBuffer.prototype.remove === 'function';\n  return !!isTypeSupported && !!sourceBufferValidAPI;\n}\n// CONCATENATED MODULE: ./src/utils/ewma.ts\n/*\n * compute an Exponential Weighted moving average\n * - https://en.wikipedia.org/wiki/Moving_average#Exponential_moving_average\n *  - heavily inspired from shaka-player\n */\nvar EWMA = /*#__PURE__*/function () {\n  //  About half of the estimated value will be from the last |halfLife| samples by weight.\n  function EWMA(halfLife) {\n    this.alpha_ = void 0;\n    this.estimate_ = void 0;\n    this.totalWeight_ = void 0;\n    // Larger values of alpha expire historical data more slowly.\n    this.alpha_ = halfLife ? Math.exp(Math.log(0.5) / halfLife) : 0;\n    this.estimate_ = 0;\n    this.totalWeight_ = 0;\n  }\n\n  var _proto = EWMA.prototype;\n\n  _proto.sample = function sample(weight, value) {\n    var adjAlpha = Math.pow(this.alpha_, weight);\n    this.estimate_ = value * (1 - adjAlpha) + adjAlpha * this.estimate_;\n    this.totalWeight_ += weight;\n  };\n\n  _proto.getTotalWeight = function getTotalWeight() {\n    return this.totalWeight_;\n  };\n\n  _proto.getEstimate = function getEstimate() {\n    if (this.alpha_) {\n      var zeroFactor = 1 - Math.pow(this.alpha_, this.totalWeight_);\n      return this.estimate_ / zeroFactor;\n    } else {\n      return this.estimate_;\n    }\n  };\n\n  return EWMA;\n}();\n\n/* harmony default export */ var ewma = (EWMA);\n// CONCATENATED MODULE: ./src/utils/ewma-bandwidth-estimator.ts\n/*\n * EWMA Bandwidth Estimator\n *  - heavily inspired from shaka-player\n * Tracks bandwidth samples and estimates available bandwidth.\n * Based on the minimum of two exponentially-weighted moving averages with\n * different half-lives.\n */\n\n\nvar ewma_bandwidth_estimator_EwmaBandWidthEstimator = /*#__PURE__*/function () {\n  // TODO(typescript-hls)\n  function EwmaBandWidthEstimator(hls, slow, fast, defaultEstimate) {\n    this.hls = void 0;\n    this.defaultEstimate_ = void 0;\n    this.minWeight_ = void 0;\n    this.minDelayMs_ = void 0;\n    this.slow_ = void 0;\n    this.fast_ = void 0;\n    this.hls = hls;\n    this.defaultEstimate_ = defaultEstimate;\n    this.minWeight_ = 0.001;\n    this.minDelayMs_ = 50;\n    this.slow_ = new ewma(slow);\n    this.fast_ = new ewma(fast);\n  }\n\n  var _proto = EwmaBandWidthEstimator.prototype;\n\n  _proto.sample = function sample(durationMs, numBytes) {\n    durationMs = Math.max(durationMs, this.minDelayMs_);\n    var numBits = 8 * numBytes,\n        // weight is duration in seconds\n    durationS = durationMs / 1000,\n        // value is bandwidth in bits/s\n    bandwidthInBps = numBits / durationS;\n    this.fast_.sample(durationS, bandwidthInBps);\n    this.slow_.sample(durationS, bandwidthInBps);\n  };\n\n  _proto.canEstimate = function canEstimate() {\n    var fast = this.fast_;\n    return fast && fast.getTotalWeight() >= this.minWeight_;\n  };\n\n  _proto.getEstimate = function getEstimate() {\n    if (this.canEstimate()) {\n      // console.log('slow estimate:'+ Math.round(this.slow_.getEstimate()));\n      // console.log('fast estimate:'+ Math.round(this.fast_.getEstimate()));\n      // Take the minimum of these two estimates.  This should have the effect of\n      // adapting down quickly, but up more slowly.\n      return Math.min(this.fast_.getEstimate(), this.slow_.getEstimate());\n    } else {\n      return this.defaultEstimate_;\n    }\n  };\n\n  _proto.destroy = function destroy() {};\n\n  return EwmaBandWidthEstimator;\n}();\n\n/* harmony default export */ var ewma_bandwidth_estimator = (ewma_bandwidth_estimator_EwmaBandWidthEstimator);\n// CONCATENATED MODULE: ./src/controller/abr-controller.js\n\n\n\nfunction abr_controller_defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if (\"value\" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }\n\nfunction abr_controller_createClass(Constructor, protoProps, staticProps) { if (protoProps) abr_controller_defineProperties(Constructor.prototype, protoProps); if (staticProps) abr_controller_defineProperties(Constructor, staticProps); return Constructor; }\n\nfunction abr_controller_assertThisInitialized(self) { if (self === void 0) { throw new ReferenceError(\"this hasn't been initialised - super() hasn't been called\"); } return self; }\n\nfunction abr_controller_inheritsLoose(subClass, superClass) { subClass.prototype = Object.create(superClass.prototype); subClass.prototype.constructor = subClass; subClass.__proto__ = superClass; }\n\n/*\n * simple ABR Controller\n *  - compute next level based on last fragment bw heuristics\n *  - implement an abandon rules triggered if we have less than 2 frag buffered and if computed bw shows that we risk buffer stalling\n */\n\n\n\n\n\n\nvar abr_controller_window = window,\n    abr_controller_performance = abr_controller_window.performance;\n\nvar abr_controller_AbrController = /*#__PURE__*/function (_EventHandler) {\n  abr_controller_inheritsLoose(AbrController, _EventHandler);\n\n  function AbrController(hls) {\n    var _this;\n\n    _this = _EventHandler.call(this, hls, events[\"default\"].FRAG_LOADING, events[\"default\"].FRAG_LOADED, events[\"default\"].FRAG_BUFFERED, events[\"default\"].ERROR) || this;\n    _this.lastLoadedFragLevel = 0;\n    _this._nextAutoLevel = -1;\n    _this.hls = hls;\n    _this.timer = null;\n    _this._bwEstimator = null;\n    _this.onCheck = _this._abandonRulesCheck.bind(abr_controller_assertThisInitialized(_this));\n    return _this;\n  }\n\n  var _proto = AbrController.prototype;\n\n  _proto.destroy = function destroy() {\n    this.clearTimer();\n    event_handler.prototype.destroy.call(this);\n  };\n\n  _proto.onFragLoading = function onFragLoading(data) {\n    var frag = data.frag;\n\n    if (frag.type === 'main') {\n      if (!this.timer) {\n        this.fragCurrent = frag;\n        this.timer = setInterval(this.onCheck, 100);\n      } // lazy init of BwEstimator, rationale is that we use different params for Live/VoD\n      // so we need to wait for stream manifest / playlist type to instantiate it.\n\n\n      if (!this._bwEstimator) {\n        var hls = this.hls;\n        var config = hls.config;\n        var level = frag.level;\n        var isLive = hls.levels[level].details.live;\n        var ewmaFast;\n        var ewmaSlow;\n\n        if (isLive) {\n          ewmaFast = config.abrEwmaFastLive;\n          ewmaSlow = config.abrEwmaSlowLive;\n        } else {\n          ewmaFast = config.abrEwmaFastVoD;\n          ewmaSlow = config.abrEwmaSlowVoD;\n        }\n\n        this._bwEstimator = new ewma_bandwidth_estimator(hls, ewmaSlow, ewmaFast, config.abrEwmaDefaultEstimate);\n      }\n    }\n  };\n\n  _proto._abandonRulesCheck = function _abandonRulesCheck() {\n    /*\n      monitor fragment retrieval time...\n      we compute expected time of arrival of the complete fragment.\n      we compare it to expected time of buffer starvation\n    */\n    var hls = this.hls;\n    var video = hls.media;\n    var frag = this.fragCurrent;\n\n    if (!frag) {\n      return;\n    }\n\n    var loader = frag.loader; // if loader has been destroyed or loading has been aborted, stop timer and return\n\n    if (!loader || loader.stats && loader.stats.aborted) {\n      logger[\"logger\"].warn('frag loader destroy or aborted, disarm abandonRules');\n      this.clearTimer(); // reset forced auto level value so that next level will be selected\n\n      this._nextAutoLevel = -1;\n      return;\n    }\n\n    var stats = loader.stats;\n    /* only monitor frag retrieval time if\n    (video not paused OR first fragment being loaded(ready state === HAVE_NOTHING = 0)) AND autoswitching enabled AND not lowest level (=> means that we have several levels) */\n\n    if (video && stats && (!video.paused && video.playbackRate !== 0 || !video.readyState) && frag.autoLevel && frag.level) {\n      var requestDelay = abr_controller_performance.now() - stats.trequest;\n      var playbackRate = Math.abs(video.playbackRate); // monitor fragment load progress after half of expected fragment duration,to stabilize bitrate\n\n      if (requestDelay > 500 * frag.duration / playbackRate) {\n        var levels = hls.levels;\n        var loadRate = Math.max(1, stats.bw ? stats.bw / 8 : stats.loaded * 1000 / requestDelay); // byte/s; at least 1 byte/s to avoid division by zero\n        // compute expected fragment length using frag duration and level bitrate. also ensure that expected len is gte than already loaded size\n\n        var level = levels[frag.level];\n\n        if (!level) {\n          return;\n        }\n\n        var levelBitrate = level.realBitrate ? Math.max(level.realBitrate, level.bitrate) : level.bitrate;\n        var expectedLen = stats.total ? stats.total : Math.max(stats.loaded, Math.round(frag.duration * levelBitrate / 8));\n        var pos = video.currentTime;\n        var fragLoadedDelay = (expectedLen - stats.loaded) / loadRate;\n        var bufferStarvationDelay = (BufferHelper.bufferInfo(video, pos, hls.config.maxBufferHole).end - pos) / playbackRate; // consider emergency switch down only if we have less than 2 frag buffered AND\n        // time to finish loading current fragment is bigger than buffer starvation delay\n        // ie if we risk buffer starvation if bw does not increase quickly\n\n        if (bufferStarvationDelay < 2 * frag.duration / playbackRate && fragLoadedDelay > bufferStarvationDelay) {\n          var minAutoLevel = hls.minAutoLevel;\n          var fragLevelNextLoadedDelay;\n          var nextLoadLevel; // lets iterate through lower level and try to find the biggest one that could avoid rebuffering\n          // we start from current level - 1 and we step down , until we find a matching level\n\n          for (nextLoadLevel = frag.level - 1; nextLoadLevel > minAutoLevel; nextLoadLevel--) {\n            // compute time to load next fragment at lower level\n            // 0.8 : consider only 80% of current bw to be conservative\n            // 8 = bits per byte (bps/Bps)\n            var levelNextBitrate = levels[nextLoadLevel].realBitrate ? Math.max(levels[nextLoadLevel].realBitrate, levels[nextLoadLevel].bitrate) : levels[nextLoadLevel].bitrate;\n\n            var _fragLevelNextLoadedDelay = frag.duration * levelNextBitrate / (8 * 0.8 * loadRate);\n\n            if (_fragLevelNextLoadedDelay < bufferStarvationDelay) {\n              // we found a lower level that be rebuffering free with current estimated bw !\n              break;\n            }\n          } // only emergency switch down if it takes less time to load new fragment at lowest level instead\n          // of finishing loading current one ...\n\n\n          if (fragLevelNextLoadedDelay < fragLoadedDelay) {\n            logger[\"logger\"].warn(\"loading too slow, abort fragment loading and switch to level \" + nextLoadLevel + \":fragLoadedDelay[\" + nextLoadLevel + \"]<fragLoadedDelay[\" + (frag.level - 1) + \"];bufferStarvationDelay:\" + fragLevelNextLoadedDelay.toFixed(1) + \"<\" + fragLoadedDelay.toFixed(1) + \":\" + bufferStarvationDelay.toFixed(1)); // force next load level in auto mode\n\n            hls.nextLoadLevel = nextLoadLevel; // update bw estimate for this fragment before cancelling load (this will help reducing the bw)\n\n            this._bwEstimator.sample(requestDelay, stats.loaded); // abort fragment loading\n\n\n            loader.abort(); // stop abandon rules timer\n\n            this.clearTimer();\n            hls.trigger(events[\"default\"].FRAG_LOAD_EMERGENCY_ABORTED, {\n              frag: frag,\n              stats: stats\n            });\n          }\n        }\n      }\n    }\n  };\n\n  _proto.onFragLoaded = function onFragLoaded(data) {\n    var frag = data.frag;\n\n    if (frag.type === 'main' && Object(number_isFinite[\"isFiniteNumber\"])(frag.sn)) {\n      // stop monitoring bw once frag loaded\n      this.clearTimer(); // store level id after successful fragment load\n\n      this.lastLoadedFragLevel = frag.level; // reset forced auto level value so that next level will be selected\n\n      this._nextAutoLevel = -1; // compute level average bitrate\n\n      if (this.hls.config.abrMaxWithRealBitrate) {\n        var level = this.hls.levels[frag.level];\n        var loadedBytes = (level.loaded ? level.loaded.bytes : 0) + data.stats.loaded;\n        var loadedDuration = (level.loaded ? level.loaded.duration : 0) + data.frag.duration;\n        level.loaded = {\n          bytes: loadedBytes,\n          duration: loadedDuration\n        };\n        level.realBitrate = Math.round(8 * loadedBytes / loadedDuration);\n      } // if fragment has been loaded to perform a bitrate test,\n\n\n      if (data.frag.bitrateTest) {\n        var stats = data.stats;\n        stats.tparsed = stats.tbuffered = stats.tload;\n        this.onFragBuffered(data);\n      }\n    }\n  };\n\n  _proto.onFragBuffered = function onFragBuffered(data) {\n    var stats = data.stats;\n    var frag = data.frag; // only update stats on first frag buffering\n    // if same frag is loaded multiple times, it might be in browser cache, and loaded quickly\n    // and leading to wrong bw estimation\n    // on bitrate test, also only update stats once (if tload = tbuffered == on FRAG_LOADED)\n\n    if (stats.aborted !== true && frag.type === 'main' && Object(number_isFinite[\"isFiniteNumber\"])(frag.sn) && (!frag.bitrateTest || stats.tload === stats.tbuffered)) {\n      // use tparsed-trequest instead of tbuffered-trequest to compute fragLoadingProcessing; rationale is that  buffer appending only happens once media is attached\n      // in case we use config.startFragPrefetch while media is not attached yet, fragment might be parsed while media not attached yet, but it will only be buffered on media attached\n      // as a consequence it could happen really late in the process. meaning that appending duration might appears huge ... leading to underestimated throughput estimation\n      var fragLoadingProcessingMs = stats.tparsed - stats.trequest;\n      logger[\"logger\"].log(\"latency/loading/parsing/append/kbps:\" + Math.round(stats.tfirst - stats.trequest) + \"/\" + Math.round(stats.tload - stats.tfirst) + \"/\" + Math.round(stats.tparsed - stats.tload) + \"/\" + Math.round(stats.tbuffered - stats.tparsed) + \"/\" + Math.round(8 * stats.loaded / (stats.tbuffered - stats.trequest)));\n\n      this._bwEstimator.sample(fragLoadingProcessingMs, stats.loaded);\n\n      stats.bwEstimate = this._bwEstimator.getEstimate(); // if fragment has been loaded to perform a bitrate test, (hls.startLevel = -1), store bitrate test delay duration\n\n      if (frag.bitrateTest) {\n        this.bitrateTestDelay = fragLoadingProcessingMs / 1000;\n      } else {\n        this.bitrateTestDelay = 0;\n      }\n    }\n  };\n\n  _proto.onError = function onError(data) {\n    // stop timer in case of frag loading error\n    switch (data.details) {\n      case errors[\"ErrorDetails\"].FRAG_LOAD_ERROR:\n      case errors[\"ErrorDetails\"].FRAG_LOAD_TIMEOUT:\n        this.clearTimer();\n        break;\n\n      default:\n        break;\n    }\n  };\n\n  _proto.clearTimer = function clearTimer() {\n    clearInterval(this.timer);\n    this.timer = null;\n  } // return next auto level\n  ;\n\n  _proto._findBestLevel = function _findBestLevel(currentLevel, currentFragDuration, currentBw, minAutoLevel, maxAutoLevel, maxFetchDuration, bwFactor, bwUpFactor, levels) {\n    for (var i = maxAutoLevel; i >= minAutoLevel; i--) {\n      var levelInfo = levels[i];\n\n      if (!levelInfo) {\n        continue;\n      }\n\n      var levelDetails = levelInfo.details;\n      var avgDuration = levelDetails ? levelDetails.totalduration / levelDetails.fragments.length : currentFragDuration;\n      var live = levelDetails ? levelDetails.live : false;\n      var adjustedbw = void 0; // follow algorithm captured from stagefright :\n      // https://android.googlesource.com/platform/frameworks/av/+/master/media/libstagefright/httplive/LiveSession.cpp\n      // Pick the highest bandwidth stream below or equal to estimated bandwidth.\n      // consider only 80% of the available bandwidth, but if we are switching up,\n      // be even more conservative (70%) to avoid overestimating and immediately\n      // switching back.\n\n      if (i <= currentLevel) {\n        adjustedbw = bwFactor * currentBw;\n      } else {\n        adjustedbw = bwUpFactor * currentBw;\n      }\n\n      var bitrate = levels[i].realBitrate ? Math.max(levels[i].realBitrate, levels[i].bitrate) : levels[i].bitrate;\n      var fetchDuration = bitrate * avgDuration / adjustedbw;\n      logger[\"logger\"].trace(\"level/adjustedbw/bitrate/avgDuration/maxFetchDuration/fetchDuration: \" + i + \"/\" + Math.round(adjustedbw) + \"/\" + bitrate + \"/\" + avgDuration + \"/\" + maxFetchDuration + \"/\" + fetchDuration); // if adjusted bw is greater than level bitrate AND\n\n      if (adjustedbw > bitrate && ( // fragment fetchDuration unknown OR live stream OR fragment fetchDuration less than max allowed fetch duration, then this level matches\n      // we don't account for max Fetch Duration for live streams, this is to avoid switching down when near the edge of live sliding window ...\n      // special case to support startLevel = -1 (bitrateTest) on live streams : in that case we should not exit loop so that _findBestLevel will return -1\n      !fetchDuration || live && !this.bitrateTestDelay || fetchDuration < maxFetchDuration)) {\n        // as we are looping from highest to lowest, this will return the best achievable quality level\n        return i;\n      }\n    } // not enough time budget even with quality level 0 ... rebuffering might happen\n\n\n    return -1;\n  };\n\n  abr_controller_createClass(AbrController, [{\n    key: \"nextAutoLevel\",\n    get: function get() {\n      var forcedAutoLevel = this._nextAutoLevel;\n      var bwEstimator = this._bwEstimator; // in case next auto level has been forced, and bw not available or not reliable, return forced value\n\n      if (forcedAutoLevel !== -1 && (!bwEstimator || !bwEstimator.canEstimate())) {\n        return forcedAutoLevel;\n      } // compute next level using ABR logic\n\n\n      var nextABRAutoLevel = this._nextABRAutoLevel; // if forced auto level has been defined, use it to cap ABR computed quality level\n\n      if (forcedAutoLevel !== -1) {\n        nextABRAutoLevel = Math.min(forcedAutoLevel, nextABRAutoLevel);\n      }\n\n      return nextABRAutoLevel;\n    },\n    set: function set(nextLevel) {\n      this._nextAutoLevel = nextLevel;\n    }\n  }, {\n    key: \"_nextABRAutoLevel\",\n    get: function get() {\n      var hls = this.hls;\n      var maxAutoLevel = hls.maxAutoLevel,\n          levels = hls.levels,\n          config = hls.config,\n          minAutoLevel = hls.minAutoLevel;\n      var video = hls.media;\n      var currentLevel = this.lastLoadedFragLevel;\n      var currentFragDuration = this.fragCurrent ? this.fragCurrent.duration : 0;\n      var pos = video ? video.currentTime : 0; // playbackRate is the absolute value of the playback rate; if video.playbackRate is 0, we use 1 to load as\n      // if we're playing back at the normal rate.\n\n      var playbackRate = video && video.playbackRate !== 0 ? Math.abs(video.playbackRate) : 1.0;\n      var avgbw = this._bwEstimator ? this._bwEstimator.getEstimate() : config.abrEwmaDefaultEstimate; // bufferStarvationDelay is the wall-clock time left until the playback buffer is exhausted.\n\n      var bufferStarvationDelay = (BufferHelper.bufferInfo(video, pos, config.maxBufferHole).end - pos) / playbackRate; // First, look to see if we can find a level matching with our avg bandwidth AND that could also guarantee no rebuffering at all\n\n      var bestLevel = this._findBestLevel(currentLevel, currentFragDuration, avgbw, minAutoLevel, maxAutoLevel, bufferStarvationDelay, config.abrBandWidthFactor, config.abrBandWidthUpFactor, levels);\n\n      if (bestLevel >= 0) {\n        return bestLevel;\n      } else {\n        logger[\"logger\"].trace('rebuffering expected to happen, lets try to find a quality level minimizing the rebuffering'); // not possible to get rid of rebuffering ... let's try to find level that will guarantee less than maxStarvationDelay of rebuffering\n        // if no matching level found, logic will return 0\n\n        var maxStarvationDelay = currentFragDuration ? Math.min(currentFragDuration, config.maxStarvationDelay) : config.maxStarvationDelay;\n        var bwFactor = config.abrBandWidthFactor;\n        var bwUpFactor = config.abrBandWidthUpFactor;\n\n        if (bufferStarvationDelay === 0) {\n          // in case buffer is empty, let's check if previous fragment was loaded to perform a bitrate test\n          var bitrateTestDelay = this.bitrateTestDelay;\n\n          if (bitrateTestDelay) {\n            // if it is the case, then we need to adjust our max starvation delay using maxLoadingDelay config value\n            // max video loading delay used in  automatic start level selection :\n            // in that mode ABR controller will ensure that video loading time (ie the time to fetch the first fragment at lowest quality level +\n            // the time to fetch the fragment at the appropriate quality level is less than ```maxLoadingDelay``` )\n            // cap maxLoadingDelay and ensure it is not bigger 'than bitrate test' frag duration\n            var maxLoadingDelay = currentFragDuration ? Math.min(currentFragDuration, config.maxLoadingDelay) : config.maxLoadingDelay;\n            maxStarvationDelay = maxLoadingDelay - bitrateTestDelay;\n            logger[\"logger\"].trace(\"bitrate test took \" + Math.round(1000 * bitrateTestDelay) + \"ms, set first fragment max fetchDuration to \" + Math.round(1000 * maxStarvationDelay) + \" ms\"); // don't use conservative factor on bitrate test\n\n            bwFactor = bwUpFactor = 1;\n          }\n        }\n\n        bestLevel = this._findBestLevel(currentLevel, currentFragDuration, avgbw, minAutoLevel, maxAutoLevel, bufferStarvationDelay + maxStarvationDelay, bwFactor, bwUpFactor, levels);\n        return Math.max(bestLevel, 0);\n      }\n    }\n  }]);\n\n  return AbrController;\n}(event_handler);\n\n/* harmony default export */ var abr_controller = (abr_controller_AbrController);\n// CONCATENATED MODULE: ./src/controller/buffer-controller.ts\n\n\nfunction buffer_controller_inheritsLoose(subClass, superClass) { subClass.prototype = Object.create(superClass.prototype); subClass.prototype.constructor = subClass; subClass.__proto__ = superClass; }\n\n/*\n * Buffer Controller\n */\n\n\n\n\n\nvar buffer_controller_MediaSource = getMediaSource();\n\nvar buffer_controller_BufferController = /*#__PURE__*/function (_EventHandler) {\n  buffer_controller_inheritsLoose(BufferController, _EventHandler);\n\n  // the value that we have set mediasource.duration to\n  // (the actual duration may be tweaked slighly by the browser)\n  // the value that we want to set mediaSource.duration to\n  // the target duration of the current media playlist\n  // current stream state: true - for live broadcast, false - for VoD content\n  // cache the self generated object url to detect hijack of video tag\n  // signals that the sourceBuffers need to be flushed\n  // signals that mediaSource should have endOfStream called\n  // this is optional because this property is removed from the class sometimes\n  // The number of BUFFER_CODEC events received before any sourceBuffers are created\n  // The total number of BUFFER_CODEC events received\n  // A reference to the attached media element\n  // A reference to the active media source\n  // List of pending segments to be appended to source buffer\n  // A guard to see if we are currently appending to the source buffer\n  // counters\n  function BufferController(hls) {\n    var _this;\n\n    _this = _EventHandler.call(this, hls, events[\"default\"].MEDIA_ATTACHING, events[\"default\"].MEDIA_DETACHING, events[\"default\"].MANIFEST_PARSED, events[\"default\"].BUFFER_RESET, events[\"default\"].BUFFER_APPENDING, events[\"default\"].BUFFER_CODECS, events[\"default\"].BUFFER_EOS, events[\"default\"].BUFFER_FLUSHING, events[\"default\"].LEVEL_PTS_UPDATED, events[\"default\"].LEVEL_UPDATED) || this;\n    _this._msDuration = null;\n    _this._levelDuration = null;\n    _this._levelTargetDuration = 10;\n    _this._live = null;\n    _this._objectUrl = null;\n    _this._needsFlush = false;\n    _this._needsEos = false;\n    _this.config = void 0;\n    _this.audioTimestampOffset = void 0;\n    _this.bufferCodecEventsExpected = 0;\n    _this._bufferCodecEventsTotal = 0;\n    _this.media = null;\n    _this.mediaSource = null;\n    _this.segments = [];\n    _this.parent = void 0;\n    _this.appending = false;\n    _this.appended = 0;\n    _this.appendError = 0;\n    _this.flushBufferCounter = 0;\n    _this.tracks = {};\n    _this.pendingTracks = {};\n    _this.sourceBuffer = {};\n    _this.flushRange = [];\n\n    _this._onMediaSourceOpen = function () {\n      logger[\"logger\"].log('media source opened');\n\n      _this.hls.trigger(events[\"default\"].MEDIA_ATTACHED, {\n        media: _this.media\n      });\n\n      var mediaSource = _this.mediaSource;\n\n      if (mediaSource) {\n        // once received, don't listen anymore to sourceopen event\n        mediaSource.removeEventListener('sourceopen', _this._onMediaSourceOpen);\n      }\n\n      _this.checkPendingTracks();\n    };\n\n    _this._onMediaSourceClose = function () {\n      logger[\"logger\"].log('media source closed');\n    };\n\n    _this._onMediaSourceEnded = function () {\n      logger[\"logger\"].log('media source ended');\n    };\n\n    _this._onSBUpdateEnd = function () {\n      // update timestampOffset\n      if (_this.audioTimestampOffset && _this.sourceBuffer.audio) {\n        var audioBuffer = _this.sourceBuffer.audio;\n        logger[\"logger\"].warn(\"change mpeg audio timestamp offset from \" + audioBuffer.timestampOffset + \" to \" + _this.audioTimestampOffset);\n        audioBuffer.timestampOffset = _this.audioTimestampOffset;\n        delete _this.audioTimestampOffset;\n      }\n\n      if (_this._needsFlush) {\n        _this.doFlush();\n      }\n\n      if (_this._needsEos) {\n        _this.checkEos();\n      }\n\n      _this.appending = false;\n      var parent = _this.parent; // count nb of pending segments waiting for appending on this sourcebuffer\n\n      var pending = _this.segments.reduce(function (counter, segment) {\n        return segment.parent === parent ? counter + 1 : counter;\n      }, 0); // this.sourceBuffer is better to use than media.buffered as it is closer to the PTS data from the fragments\n\n\n      var timeRanges = {};\n      var sbSet = _this.sourceBuffer;\n\n      for (var streamType in sbSet) {\n        var sb = sbSet[streamType];\n\n        if (!sb) {\n          throw Error(\"handling source buffer update end error: source buffer for \" + streamType + \" uninitilized and unable to update buffered TimeRanges.\");\n        }\n\n        timeRanges[streamType] = sb.buffered;\n      }\n\n      _this.hls.trigger(events[\"default\"].BUFFER_APPENDED, {\n        parent: parent,\n        pending: pending,\n        timeRanges: timeRanges\n      }); // don't append in flushing mode\n\n\n      if (!_this._needsFlush) {\n        _this.doAppending();\n      }\n\n      _this.updateMediaElementDuration(); // appending goes first\n\n\n      if (pending === 0) {\n        _this.flushLiveBackBuffer();\n      }\n    };\n\n    _this._onSBUpdateError = function (event) {\n      logger[\"logger\"].error('sourceBuffer error:', event); // according to http://www.w3.org/TR/media-source/#sourcebuffer-append-error\n      // this error might not always be fatal (it is fatal if decode error is set, in that case\n      // it will be followed by a mediaElement error ...)\n\n      _this.hls.trigger(events[\"default\"].ERROR, {\n        type: errors[\"ErrorTypes\"].MEDIA_ERROR,\n        details: errors[\"ErrorDetails\"].BUFFER_APPENDING_ERROR,\n        fatal: false\n      }); // we don't need to do more than that, as accordin to the spec, updateend will be fired just after\n\n    };\n\n    _this.config = hls.config;\n    return _this;\n  }\n\n  var _proto = BufferController.prototype;\n\n  _proto.destroy = function destroy() {\n    event_handler.prototype.destroy.call(this);\n  };\n\n  _proto.onLevelPtsUpdated = function onLevelPtsUpdated(data) {\n    var type = data.type;\n    var audioTrack = this.tracks.audio; // Adjusting `SourceBuffer.timestampOffset` (desired point in the timeline where the next frames should be appended)\n    // in Chrome browser when we detect MPEG audio container and time delta between level PTS and `SourceBuffer.timestampOffset`\n    // is greater than 100ms (this is enough to handle seek for VOD or level change for LIVE videos). At the time of change we issue\n    // `SourceBuffer.abort()` and adjusting `SourceBuffer.timestampOffset` if `SourceBuffer.updating` is false or awaiting `updateend`\n    // event if SB is in updating state.\n    // More info here: https://github.com/video-dev/hls.js/issues/332#issuecomment-257986486\n\n    if (type === 'audio' && audioTrack && audioTrack.container === 'audio/mpeg') {\n      // Chrome audio mp3 track\n      var audioBuffer = this.sourceBuffer.audio;\n\n      if (!audioBuffer) {\n        throw Error('Level PTS Updated and source buffer for audio uninitalized');\n      }\n\n      var delta = Math.abs(audioBuffer.timestampOffset - data.start); // adjust timestamp offset if time delta is greater than 100ms\n\n      if (delta > 0.1) {\n        var updating = audioBuffer.updating;\n\n        try {\n          audioBuffer.abort();\n        } catch (err) {\n          logger[\"logger\"].warn('can not abort audio buffer: ' + err);\n        }\n\n        if (!updating) {\n          logger[\"logger\"].warn('change mpeg audio timestamp offset from ' + audioBuffer.timestampOffset + ' to ' + data.start);\n          audioBuffer.timestampOffset = data.start;\n        } else {\n          this.audioTimestampOffset = data.start;\n        }\n      }\n    }\n  };\n\n  _proto.onManifestParsed = function onManifestParsed(data) {\n    // in case of alt audio (where all tracks have urls) 2 BUFFER_CODECS events will be triggered, one per stream controller\n    // sourcebuffers will be created all at once when the expected nb of tracks will be reached\n    // in case alt audio is not used, only one BUFFER_CODEC event will be fired from main stream controller\n    // it will contain the expected nb of source buffers, no need to compute it\n    var codecEvents = 2;\n\n    if (data.audio && !data.video || !data.altAudio) {\n      codecEvents = 1;\n    }\n\n    this.bufferCodecEventsExpected = this._bufferCodecEventsTotal = codecEvents;\n    logger[\"logger\"].log(this.bufferCodecEventsExpected + \" bufferCodec event(s) expected\");\n  };\n\n  _proto.onMediaAttaching = function onMediaAttaching(data) {\n    var media = this.media = data.media;\n\n    if (media && buffer_controller_MediaSource) {\n      // setup the media source\n      var ms = this.mediaSource = new buffer_controller_MediaSource(); // Media Source listeners\n\n      ms.addEventListener('sourceopen', this._onMediaSourceOpen);\n      ms.addEventListener('sourceended', this._onMediaSourceEnded);\n      ms.addEventListener('sourceclose', this._onMediaSourceClose); // link video and media Source\n\n      media.src = window.URL.createObjectURL(ms); // cache the locally generated object url\n\n      this._objectUrl = media.src;\n    }\n  };\n\n  _proto.onMediaDetaching = function onMediaDetaching() {\n    logger[\"logger\"].log('media source detaching');\n    var ms = this.mediaSource;\n\n    if (ms) {\n      if (ms.readyState === 'open') {\n        try {\n          // endOfStream could trigger exception if any sourcebuffer is in updating state\n          // we don't really care about checking sourcebuffer state here,\n          // as we are anyway detaching the MediaSource\n          // let's just avoid this exception to propagate\n          ms.endOfStream();\n        } catch (err) {\n          logger[\"logger\"].warn(\"onMediaDetaching:\" + err.message + \" while calling endOfStream\");\n        }\n      }\n\n      ms.removeEventListener('sourceopen', this._onMediaSourceOpen);\n      ms.removeEventListener('sourceended', this._onMediaSourceEnded);\n      ms.removeEventListener('sourceclose', this._onMediaSourceClose); // Detach properly the MediaSource from the HTMLMediaElement as\n      // suggested in https://github.com/w3c/media-source/issues/53.\n\n      if (this.media) {\n        if (this._objectUrl) {\n          window.URL.revokeObjectURL(this._objectUrl);\n        } // clean up video tag src only if it's our own url. some external libraries might\n        // hijack the video tag and change its 'src' without destroying the Hls instance first\n\n\n        if (this.media.src === this._objectUrl) {\n          this.media.removeAttribute('src');\n          this.media.load();\n        } else {\n          logger[\"logger\"].warn('media.src was changed by a third party - skip cleanup');\n        }\n      }\n\n      this.mediaSource = null;\n      this.media = null;\n      this._objectUrl = null;\n      this.bufferCodecEventsExpected = this._bufferCodecEventsTotal;\n      this.pendingTracks = {};\n      this.tracks = {};\n      this.sourceBuffer = {};\n      this.flushRange = [];\n      this.segments = [];\n      this.appended = 0;\n    }\n\n    this.hls.trigger(events[\"default\"].MEDIA_DETACHED);\n  };\n\n  _proto.checkPendingTracks = function checkPendingTracks() {\n    var bufferCodecEventsExpected = this.bufferCodecEventsExpected,\n        pendingTracks = this.pendingTracks; // Check if we've received all of the expected bufferCodec events. When none remain, create all the sourceBuffers at once.\n    // This is important because the MSE spec allows implementations to throw QuotaExceededErrors if creating new sourceBuffers after\n    // data has been appended to existing ones.\n    // 2 tracks is the max (one for audio, one for video). If we've reach this max go ahead and create the buffers.\n\n    var pendingTracksCount = Object.keys(pendingTracks).length;\n\n    if (pendingTracksCount && !bufferCodecEventsExpected || pendingTracksCount === 2) {\n      // ok, let's create them now !\n      this.createSourceBuffers(pendingTracks);\n      this.pendingTracks = {}; // append any pending segments now !\n\n      this.doAppending();\n    }\n  };\n\n  _proto.onBufferReset = function onBufferReset() {\n    var sourceBuffer = this.sourceBuffer;\n\n    for (var type in sourceBuffer) {\n      var sb = sourceBuffer[type];\n\n      try {\n        if (sb) {\n          if (this.mediaSource) {\n            this.mediaSource.removeSourceBuffer(sb);\n          }\n\n          sb.removeEventListener('updateend', this._onSBUpdateEnd);\n          sb.removeEventListener('error', this._onSBUpdateError);\n        }\n      } catch (err) {}\n    }\n\n    this.sourceBuffer = {};\n    this.flushRange = [];\n    this.segments = [];\n    this.appended = 0;\n  };\n\n  _proto.onBufferCodecs = function onBufferCodecs(tracks) {\n    var _this2 = this;\n\n    // if source buffer(s) not created yet, appended buffer tracks in this.pendingTracks\n    // if sourcebuffers already created, do nothing ...\n    if (Object.keys(this.sourceBuffer).length) {\n      return;\n    }\n\n    Object.keys(tracks).forEach(function (trackName) {\n      _this2.pendingTracks[trackName] = tracks[trackName];\n    });\n    this.bufferCodecEventsExpected = Math.max(this.bufferCodecEventsExpected - 1, 0);\n\n    if (this.mediaSource && this.mediaSource.readyState === 'open') {\n      this.checkPendingTracks();\n    }\n  };\n\n  _proto.createSourceBuffers = function createSourceBuffers(tracks) {\n    var sourceBuffer = this.sourceBuffer,\n        mediaSource = this.mediaSource;\n\n    if (!mediaSource) {\n      throw Error('createSourceBuffers called when mediaSource was null');\n    }\n\n    for (var trackName in tracks) {\n      if (!sourceBuffer[trackName]) {\n        var track = tracks[trackName];\n\n        if (!track) {\n          throw Error(\"source buffer exists for track \" + trackName + \", however track does not\");\n        } // use levelCodec as first priority\n\n\n        var codec = track.levelCodec || track.codec;\n        var mimeType = track.container + \";codecs=\" + codec;\n        logger[\"logger\"].log(\"creating sourceBuffer(\" + mimeType + \")\");\n\n        try {\n          var sb = sourceBuffer[trackName] = mediaSource.addSourceBuffer(mimeType);\n          sb.addEventListener('updateend', this._onSBUpdateEnd);\n          sb.addEventListener('error', this._onSBUpdateError);\n          this.tracks[trackName] = {\n            buffer: sb,\n            codec: codec,\n            id: track.id,\n            container: track.container,\n            levelCodec: track.levelCodec\n          };\n        } catch (err) {\n          logger[\"logger\"].error(\"error while trying to add sourceBuffer:\" + err.message);\n          this.hls.trigger(events[\"default\"].ERROR, {\n            type: errors[\"ErrorTypes\"].MEDIA_ERROR,\n            details: errors[\"ErrorDetails\"].BUFFER_ADD_CODEC_ERROR,\n            fatal: false,\n            err: err,\n            mimeType: mimeType\n          });\n        }\n      }\n    }\n\n    this.hls.trigger(events[\"default\"].BUFFER_CREATED, {\n      tracks: this.tracks\n    });\n  };\n\n  _proto.onBufferAppending = function onBufferAppending(data) {\n    if (!this._needsFlush) {\n      if (!this.segments) {\n        this.segments = [data];\n      } else {\n        this.segments.push(data);\n      }\n\n      this.doAppending();\n    }\n  } // on BUFFER_EOS mark matching sourcebuffer(s) as ended and trigger checkEos()\n  // an undefined data.type will mark all buffers as EOS.\n  ;\n\n  _proto.onBufferEos = function onBufferEos(data) {\n    for (var type in this.sourceBuffer) {\n      if (!data.type || data.type === type) {\n        var sb = this.sourceBuffer[type];\n\n        if (sb && !sb.ended) {\n          sb.ended = true;\n          logger[\"logger\"].log(type + \" sourceBuffer now EOS\");\n        }\n      }\n    }\n\n    this.checkEos();\n  } // if all source buffers are marked as ended, signal endOfStream() to MediaSource.\n  ;\n\n  _proto.checkEos = function checkEos() {\n    var sourceBuffer = this.sourceBuffer,\n        mediaSource = this.mediaSource;\n\n    if (!mediaSource || mediaSource.readyState !== 'open') {\n      this._needsEos = false;\n      return;\n    }\n\n    for (var type in sourceBuffer) {\n      var sb = sourceBuffer[type];\n      if (!sb) continue;\n\n      if (!sb.ended) {\n        return;\n      }\n\n      if (sb.updating) {\n        this._needsEos = true;\n        return;\n      }\n    }\n\n    logger[\"logger\"].log('all media data are available, signal endOfStream() to MediaSource and stop loading fragment'); // Notify the media element that it now has all of the media data\n\n    try {\n      mediaSource.endOfStream();\n    } catch (e) {\n      logger[\"logger\"].warn('exception while calling mediaSource.endOfStream()');\n    }\n\n    this._needsEos = false;\n  };\n\n  _proto.onBufferFlushing = function onBufferFlushing(data) {\n    if (data.type) {\n      this.flushRange.push({\n        start: data.startOffset,\n        end: data.endOffset,\n        type: data.type\n      });\n    } else {\n      this.flushRange.push({\n        start: data.startOffset,\n        end: data.endOffset,\n        type: 'video'\n      });\n      this.flushRange.push({\n        start: data.startOffset,\n        end: data.endOffset,\n        type: 'audio'\n      });\n    } // attempt flush immediately\n\n\n    this.flushBufferCounter = 0;\n    this.doFlush();\n  };\n\n  _proto.flushLiveBackBuffer = function flushLiveBackBuffer() {\n    // clear back buffer for live only\n    if (!this._live) {\n      return;\n    }\n\n    var liveBackBufferLength = this.config.liveBackBufferLength;\n\n    if (!isFinite(liveBackBufferLength) || liveBackBufferLength < 0) {\n      return;\n    }\n\n    if (!this.media) {\n      logger[\"logger\"].error('flushLiveBackBuffer called without attaching media');\n      return;\n    }\n\n    var currentTime = this.media.currentTime;\n    var sourceBuffer = this.sourceBuffer;\n    var bufferTypes = Object.keys(sourceBuffer);\n    var targetBackBufferPosition = currentTime - Math.max(liveBackBufferLength, this._levelTargetDuration);\n\n    for (var index = bufferTypes.length - 1; index >= 0; index--) {\n      var bufferType = bufferTypes[index];\n      var sb = sourceBuffer[bufferType];\n\n      if (sb) {\n        var buffered = sb.buffered; // when target buffer start exceeds actual buffer start\n\n        if (buffered.length > 0 && targetBackBufferPosition > buffered.start(0)) {\n          // remove buffer up until current time minus minimum back buffer length (removing buffer too close to current\n          // time will lead to playback freezing)\n          // credits for level target duration - https://github.com/videojs/http-streaming/blob/3132933b6aa99ddefab29c10447624efd6fd6e52/src/segment-loader.js#L91\n          if (this.removeBufferRange(bufferType, sb, 0, targetBackBufferPosition)) {\n            this.hls.trigger(events[\"default\"].LIVE_BACK_BUFFER_REACHED, {\n              bufferEnd: targetBackBufferPosition\n            });\n          }\n        }\n      }\n    }\n  };\n\n  _proto.onLevelUpdated = function onLevelUpdated(_ref) {\n    var details = _ref.details;\n\n    if (details.fragments.length > 0) {\n      this._levelDuration = details.totalduration + details.fragments[0].start;\n      this._levelTargetDuration = details.averagetargetduration || details.targetduration || 10;\n      this._live = details.live;\n      this.updateMediaElementDuration();\n    }\n  }\n  /**\n   * Update Media Source duration to current level duration or override to Infinity if configuration parameter\n   * 'liveDurationInfinity` is set to `true`\n   * More details: https://github.com/video-dev/hls.js/issues/355\n   */\n  ;\n\n  _proto.updateMediaElementDuration = function updateMediaElementDuration() {\n    var config = this.config;\n    var duration;\n\n    if (this._levelDuration === null || !this.media || !this.mediaSource || !this.sourceBuffer || this.media.readyState === 0 || this.mediaSource.readyState !== 'open') {\n      return;\n    }\n\n    for (var type in this.sourceBuffer) {\n      var sb = this.sourceBuffer[type];\n\n      if (sb && sb.updating === true) {\n        // can't set duration whilst a buffer is updating\n        return;\n      }\n    }\n\n    duration = this.media.duration; // initialise to the value that the media source is reporting\n\n    if (this._msDuration === null) {\n      this._msDuration = this.mediaSource.duration;\n    }\n\n    if (this._live === true && config.liveDurationInfinity === true) {\n      // Override duration to Infinity\n      logger[\"logger\"].log('Media Source duration is set to Infinity');\n      this._msDuration = this.mediaSource.duration = Infinity;\n    } else if (this._levelDuration > this._msDuration && this._levelDuration > duration || !Object(number_isFinite[\"isFiniteNumber\"])(duration)) {\n      // levelDuration was the last value we set.\n      // not using mediaSource.duration as the browser may tweak this value\n      // only update Media Source duration if its value increase, this is to avoid\n      // flushing already buffered portion when switching between quality level\n      logger[\"logger\"].log(\"Updating Media Source duration to \" + this._levelDuration.toFixed(3));\n      this._msDuration = this.mediaSource.duration = this._levelDuration;\n    }\n  };\n\n  _proto.doFlush = function doFlush() {\n    // loop through all buffer ranges to flush\n    while (this.flushRange.length) {\n      var range = this.flushRange[0]; // flushBuffer will abort any buffer append in progress and flush Audio/Video Buffer\n\n      if (this.flushBuffer(range.start, range.end, range.type)) {\n        // range flushed, remove from flush array\n        this.flushRange.shift();\n        this.flushBufferCounter = 0;\n      } else {\n        this._needsFlush = true; // avoid looping, wait for SB update end to retrigger a flush\n\n        return;\n      }\n    }\n\n    if (this.flushRange.length === 0) {\n      // everything flushed\n      this._needsFlush = false; // let's recompute this.appended, which is used to avoid flush looping\n\n      var appended = 0;\n      var sourceBuffer = this.sourceBuffer;\n\n      try {\n        for (var type in sourceBuffer) {\n          var sb = sourceBuffer[type];\n\n          if (sb) {\n            appended += sb.buffered.length;\n          }\n        }\n      } catch (error) {\n        // error could be thrown while accessing buffered, in case sourcebuffer has already been removed from MediaSource\n        // this is harmess at this stage, catch this to avoid reporting an internal exception\n        logger[\"logger\"].error('error while accessing sourceBuffer.buffered');\n      }\n\n      this.appended = appended;\n      this.hls.trigger(events[\"default\"].BUFFER_FLUSHED);\n    }\n  };\n\n  _proto.doAppending = function doAppending() {\n    var config = this.config,\n        hls = this.hls,\n        segments = this.segments,\n        sourceBuffer = this.sourceBuffer;\n\n    if (!Object.keys(sourceBuffer).length) {\n      // early exit if no source buffers have been initialized yet\n      return;\n    }\n\n    if (!this.media || this.media.error) {\n      this.segments = [];\n      logger[\"logger\"].error('trying to append although a media error occured, flush segment and abort');\n      return;\n    }\n\n    if (this.appending) {\n      // logger.log(`sb appending in progress`);\n      return;\n    }\n\n    var segment = segments.shift();\n\n    if (!segment) {\n      // handle undefined shift\n      return;\n    }\n\n    try {\n      var sb = sourceBuffer[segment.type];\n\n      if (!sb) {\n        // in case we don't have any source buffer matching with this segment type,\n        // it means that Mediasource fails to create sourcebuffer\n        // discard this segment, and trigger update end\n        this._onSBUpdateEnd();\n\n        return;\n      }\n\n      if (sb.updating) {\n        // if we are still updating the source buffer from the last segment, place this back at the front of the queue\n        segments.unshift(segment);\n        return;\n      } // reset sourceBuffer ended flag before appending segment\n\n\n      sb.ended = false; // logger.log(`appending ${segment.content} ${type} SB, size:${segment.data.length}, ${segment.parent}`);\n\n      this.parent = segment.parent;\n      sb.appendBuffer(segment.data);\n      this.appendError = 0;\n      this.appended++;\n      this.appending = true;\n    } catch (err) {\n      // in case any error occured while appending, put back segment in segments table\n      logger[\"logger\"].error(\"error while trying to append buffer:\" + err.message);\n      segments.unshift(segment);\n      var event = {\n        type: errors[\"ErrorTypes\"].MEDIA_ERROR,\n        parent: segment.parent,\n        details: '',\n        fatal: false\n      };\n\n      if (err.code === 22) {\n        // QuotaExceededError: http://www.w3.org/TR/html5/infrastructure.html#quotaexceedederror\n        // let's stop appending any segments, and report BUFFER_FULL_ERROR error\n        this.segments = [];\n        event.details = errors[\"ErrorDetails\"].BUFFER_FULL_ERROR;\n      } else {\n        this.appendError++;\n        event.details = errors[\"ErrorDetails\"].BUFFER_APPEND_ERROR;\n        /* with UHD content, we could get loop of quota exceeded error until\n          browser is able to evict some data from sourcebuffer. retrying help recovering this\n        */\n\n        if (this.appendError > config.appendErrorMaxRetry) {\n          logger[\"logger\"].log(\"fail \" + config.appendErrorMaxRetry + \" times to append segment in sourceBuffer\");\n          this.segments = [];\n          event.fatal = true;\n        }\n      }\n\n      hls.trigger(events[\"default\"].ERROR, event);\n    }\n  }\n  /*\n    flush specified buffered range,\n    return true once range has been flushed.\n    as sourceBuffer.remove() is asynchronous, flushBuffer will be retriggered on sourceBuffer update end\n  */\n  ;\n\n  _proto.flushBuffer = function flushBuffer(startOffset, endOffset, sbType) {\n    var sourceBuffer = this.sourceBuffer; // exit if no sourceBuffers are initialized\n\n    if (!Object.keys(sourceBuffer).length) {\n      return true;\n    }\n\n    var currentTime = 'null';\n\n    if (this.media) {\n      currentTime = this.media.currentTime.toFixed(3);\n    }\n\n    logger[\"logger\"].log(\"flushBuffer,pos/start/end: \" + currentTime + \"/\" + startOffset + \"/\" + endOffset); // safeguard to avoid infinite looping : don't try to flush more than the nb of appended segments\n\n    if (this.flushBufferCounter >= this.appended) {\n      logger[\"logger\"].warn('abort flushing too many retries');\n      return true;\n    }\n\n    var sb = sourceBuffer[sbType]; // we are going to flush buffer, mark source buffer as 'not ended'\n\n    if (sb) {\n      sb.ended = false;\n\n      if (!sb.updating) {\n        if (this.removeBufferRange(sbType, sb, startOffset, endOffset)) {\n          this.flushBufferCounter++;\n          return false;\n        }\n      } else {\n        logger[\"logger\"].warn('cannot flush, sb updating in progress');\n        return false;\n      }\n    }\n\n    logger[\"logger\"].log('buffer flushed'); // everything flushed !\n\n    return true;\n  }\n  /**\n   * Removes first buffered range from provided source buffer that lies within given start and end offsets.\n   *\n   * @param {string} type Type of the source buffer, logging purposes only.\n   * @param {SourceBuffer} sb Target SourceBuffer instance.\n   * @param {number} startOffset\n   * @param {number} endOffset\n   *\n   * @returns {boolean} True when source buffer remove requested.\n   */\n  ;\n\n  _proto.removeBufferRange = function removeBufferRange(type, sb, startOffset, endOffset) {\n    try {\n      for (var i = 0; i < sb.buffered.length; i++) {\n        var bufStart = sb.buffered.start(i);\n        var bufEnd = sb.buffered.end(i);\n        var removeStart = Math.max(bufStart, startOffset);\n        var removeEnd = Math.min(bufEnd, endOffset);\n        /* sometimes sourcebuffer.remove() does not flush\n          the exact expected time range.\n          to avoid rounding issues/infinite loop,\n          only flush buffer range of length greater than 500ms.\n        */\n\n        if (Math.min(removeEnd, bufEnd) - removeStart > 0.5) {\n          var currentTime = 'null';\n\n          if (this.media) {\n            currentTime = this.media.currentTime.toString();\n          }\n\n          logger[\"logger\"].log(\"sb remove \" + type + \" [\" + removeStart + \",\" + removeEnd + \"], of [\" + bufStart + \",\" + bufEnd + \"], pos:\" + currentTime);\n          sb.remove(removeStart, removeEnd);\n          return true;\n        }\n      }\n    } catch (error) {\n      logger[\"logger\"].warn('removeBufferRange failed', error);\n    }\n\n    return false;\n  };\n\n  return BufferController;\n}(event_handler);\n\n/* harmony default export */ var buffer_controller = (buffer_controller_BufferController);\n// CONCATENATED MODULE: ./src/controller/cap-level-controller.js\nfunction cap_level_controller_defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if (\"value\" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }\n\nfunction cap_level_controller_createClass(Constructor, protoProps, staticProps) { if (protoProps) cap_level_controller_defineProperties(Constructor.prototype, protoProps); if (staticProps) cap_level_controller_defineProperties(Constructor, staticProps); return Constructor; }\n\nfunction cap_level_controller_inheritsLoose(subClass, superClass) { subClass.prototype = Object.create(superClass.prototype); subClass.prototype.constructor = subClass; subClass.__proto__ = superClass; }\n\n/*\n * cap stream level to media size dimension controller\n*/\n\n\n\nvar cap_level_controller_CapLevelController = /*#__PURE__*/function (_EventHandler) {\n  cap_level_controller_inheritsLoose(CapLevelController, _EventHandler);\n\n  function CapLevelController(hls) {\n    var _this;\n\n    _this = _EventHandler.call(this, hls, events[\"default\"].FPS_DROP_LEVEL_CAPPING, events[\"default\"].MEDIA_ATTACHING, events[\"default\"].MANIFEST_PARSED, events[\"default\"].LEVELS_UPDATED, events[\"default\"].BUFFER_CODECS, events[\"default\"].MEDIA_DETACHING) || this;\n    _this.autoLevelCapping = Number.POSITIVE_INFINITY;\n    _this.firstLevel = null;\n    _this.levels = [];\n    _this.media = null;\n    _this.restrictedLevels = [];\n    _this.timer = null;\n    _this.clientRect = null;\n    return _this;\n  }\n\n  var _proto = CapLevelController.prototype;\n\n  _proto.destroy = function destroy() {\n    if (this.hls.config.capLevelToPlayerSize) {\n      this.media = null;\n      this.clientRect = null;\n      this.stopCapping();\n    }\n  };\n\n  _proto.onFpsDropLevelCapping = function onFpsDropLevelCapping(data) {\n    // Don't add a restricted level more than once\n    if (CapLevelController.isLevelAllowed(data.droppedLevel, this.restrictedLevels)) {\n      this.restrictedLevels.push(data.droppedLevel);\n    }\n  };\n\n  _proto.onMediaAttaching = function onMediaAttaching(data) {\n    this.media = data.media instanceof window.HTMLVideoElement ? data.media : null;\n  };\n\n  _proto.onManifestParsed = function onManifestParsed(data) {\n    var hls = this.hls;\n    this.restrictedLevels = [];\n    this.levels = data.levels;\n    this.firstLevel = data.firstLevel;\n\n    if (hls.config.capLevelToPlayerSize && data.video) {\n      // Start capping immediately if the manifest has signaled video codecs\n      this.startCapping();\n    }\n  } // Only activate capping when playing a video stream; otherwise, multi-bitrate audio-only streams will be restricted\n  // to the first level\n  ;\n\n  _proto.onBufferCodecs = function onBufferCodecs(data) {\n    var hls = this.hls;\n\n    if (hls.config.capLevelToPlayerSize && data.video) {\n      // If the manifest did not signal a video codec capping has been deferred until we're certain video is present\n      this.startCapping();\n    }\n  };\n\n  _proto.onLevelsUpdated = function onLevelsUpdated(data) {\n    this.levels = data.levels;\n  };\n\n  _proto.onMediaDetaching = function onMediaDetaching() {\n    this.stopCapping();\n  };\n\n  _proto.detectPlayerSize = function detectPlayerSize() {\n    if (this.media) {\n      var levelsLength = this.levels ? this.levels.length : 0;\n\n      if (levelsLength) {\n        var hls = this.hls;\n        hls.autoLevelCapping = this.getMaxLevel(levelsLength - 1);\n\n        if (hls.autoLevelCapping > this.autoLevelCapping) {\n          // if auto level capping has a higher value for the previous one, flush the buffer using nextLevelSwitch\n          // usually happen when the user go to the fullscreen mode.\n          hls.streamController.nextLevelSwitch();\n        }\n\n        this.autoLevelCapping = hls.autoLevelCapping;\n      }\n    }\n  }\n  /*\n  * returns level should be the one with the dimensions equal or greater than the media (player) dimensions (so the video will be downscaled)\n  */\n  ;\n\n  _proto.getMaxLevel = function getMaxLevel(capLevelIndex) {\n    var _this2 = this;\n\n    if (!this.levels) {\n      return -1;\n    }\n\n    var validLevels = this.levels.filter(function (level, index) {\n      return CapLevelController.isLevelAllowed(index, _this2.restrictedLevels) && index <= capLevelIndex;\n    });\n    this.clientRect = null;\n    return CapLevelController.getMaxLevelByMediaSize(validLevels, this.mediaWidth, this.mediaHeight);\n  };\n\n  _proto.startCapping = function startCapping() {\n    if (this.timer) {\n      // Don't reset capping if started twice; this can happen if the manifest signals a video codec\n      return;\n    }\n\n    this.autoLevelCapping = Number.POSITIVE_INFINITY;\n    this.hls.firstLevel = this.getMaxLevel(this.firstLevel);\n    clearInterval(this.timer);\n    this.timer = setInterval(this.detectPlayerSize.bind(this), 1000);\n    this.detectPlayerSize();\n  };\n\n  _proto.stopCapping = function stopCapping() {\n    this.restrictedLevels = [];\n    this.firstLevel = null;\n    this.autoLevelCapping = Number.POSITIVE_INFINITY;\n\n    if (this.timer) {\n      this.timer = clearInterval(this.timer);\n      this.timer = null;\n    }\n  };\n\n  _proto.getDimensions = function getDimensions() {\n    if (this.clientRect) {\n      return this.clientRect;\n    }\n\n    var media = this.media;\n    var boundsRect = {\n      width: 0,\n      height: 0\n    };\n\n    if (media) {\n      var clientRect = media.getBoundingClientRect();\n      boundsRect.width = clientRect.width;\n      boundsRect.height = clientRect.height;\n\n      if (!boundsRect.width && !boundsRect.height) {\n        // When the media element has no width or height (equivalent to not being in the DOM),\n        // then use its width and height attributes (media.width, media.height)\n        boundsRect.width = clientRect.right - clientRect.left || media.width || 0;\n        boundsRect.height = clientRect.bottom - clientRect.top || media.height || 0;\n      }\n    }\n\n    this.clientRect = boundsRect;\n    return boundsRect;\n  };\n\n  CapLevelController.isLevelAllowed = function isLevelAllowed(level, restrictedLevels) {\n    if (restrictedLevels === void 0) {\n      restrictedLevels = [];\n    }\n\n    return restrictedLevels.indexOf(level) === -1;\n  };\n\n  CapLevelController.getMaxLevelByMediaSize = function getMaxLevelByMediaSize(levels, width, height) {\n    if (!levels || levels && !levels.length) {\n      return -1;\n    } // Levels can have the same dimensions but differing bandwidths - since levels are ordered, we can look to the next\n    // to determine whether we've chosen the greatest bandwidth for the media's dimensions\n\n\n    var atGreatestBandiwdth = function atGreatestBandiwdth(curLevel, nextLevel) {\n      if (!nextLevel) {\n        return true;\n      }\n\n      return curLevel.width !== nextLevel.width || curLevel.height !== nextLevel.height;\n    }; // If we run through the loop without breaking, the media's dimensions are greater than every level, so default to\n    // the max level\n\n\n    var maxLevelIndex = levels.length - 1;\n\n    for (var i = 0; i < levels.length; i += 1) {\n      var level = levels[i];\n\n      if ((level.width >= width || level.height >= height) && atGreatestBandiwdth(level, levels[i + 1])) {\n        maxLevelIndex = i;\n        break;\n      }\n    }\n\n    return maxLevelIndex;\n  };\n\n  cap_level_controller_createClass(CapLevelController, [{\n    key: \"mediaWidth\",\n    get: function get() {\n      return this.getDimensions().width * CapLevelController.contentScaleFactor;\n    }\n  }, {\n    key: \"mediaHeight\",\n    get: function get() {\n      return this.getDimensions().height * CapLevelController.contentScaleFactor;\n    }\n  }], [{\n    key: \"contentScaleFactor\",\n    get: function get() {\n      var pixelRatio = 1;\n\n      try {\n        pixelRatio = window.devicePixelRatio;\n      } catch (e) {}\n\n      return pixelRatio;\n    }\n  }]);\n\n  return CapLevelController;\n}(event_handler);\n\n/* harmony default export */ var cap_level_controller = (cap_level_controller_CapLevelController);\n// CONCATENATED MODULE: ./src/controller/fps-controller.js\nfunction fps_controller_inheritsLoose(subClass, superClass) { subClass.prototype = Object.create(superClass.prototype); subClass.prototype.constructor = subClass; subClass.__proto__ = superClass; }\n\n/*\n * FPS Controller\n*/\n\n\n\nvar fps_controller_window = window,\n    fps_controller_performance = fps_controller_window.performance;\n\nvar fps_controller_FPSController = /*#__PURE__*/function (_EventHandler) {\n  fps_controller_inheritsLoose(FPSController, _EventHandler);\n\n  function FPSController(hls) {\n    return _EventHandler.call(this, hls, events[\"default\"].MEDIA_ATTACHING) || this;\n  }\n\n  var _proto = FPSController.prototype;\n\n  _proto.destroy = function destroy() {\n    if (this.timer) {\n      clearInterval(this.timer);\n    }\n\n    this.isVideoPlaybackQualityAvailable = false;\n  };\n\n  _proto.onMediaAttaching = function onMediaAttaching(data) {\n    var config = this.hls.config;\n\n    if (config.capLevelOnFPSDrop) {\n      var video = this.video = data.media instanceof window.HTMLVideoElement ? data.media : null;\n\n      if (typeof video.getVideoPlaybackQuality === 'function') {\n        this.isVideoPlaybackQualityAvailable = true;\n      }\n\n      clearInterval(this.timer);\n      this.timer = setInterval(this.checkFPSInterval.bind(this), config.fpsDroppedMonitoringPeriod);\n    }\n  };\n\n  _proto.checkFPS = function checkFPS(video, decodedFrames, droppedFrames) {\n    var currentTime = fps_controller_performance.now();\n\n    if (decodedFrames) {\n      if (this.lastTime) {\n        var currentPeriod = currentTime - this.lastTime,\n            currentDropped = droppedFrames - this.lastDroppedFrames,\n            currentDecoded = decodedFrames - this.lastDecodedFrames,\n            droppedFPS = 1000 * currentDropped / currentPeriod,\n            hls = this.hls;\n        hls.trigger(events[\"default\"].FPS_DROP, {\n          currentDropped: currentDropped,\n          currentDecoded: currentDecoded,\n          totalDroppedFrames: droppedFrames\n        });\n\n        if (droppedFPS > 0) {\n          // logger.log('checkFPS : droppedFPS/decodedFPS:' + droppedFPS/(1000 * currentDecoded / currentPeriod));\n          if (currentDropped > hls.config.fpsDroppedMonitoringThreshold * currentDecoded) {\n            var currentLevel = hls.currentLevel;\n            logger[\"logger\"].warn('drop FPS ratio greater than max allowed value for currentLevel: ' + currentLevel);\n\n            if (currentLevel > 0 && (hls.autoLevelCapping === -1 || hls.autoLevelCapping >= currentLevel)) {\n              currentLevel = currentLevel - 1;\n              hls.trigger(events[\"default\"].FPS_DROP_LEVEL_CAPPING, {\n                level: currentLevel,\n                droppedLevel: hls.currentLevel\n              });\n              hls.autoLevelCapping = currentLevel;\n              hls.streamController.nextLevelSwitch();\n            }\n          }\n        }\n      }\n\n      this.lastTime = currentTime;\n      this.lastDroppedFrames = droppedFrames;\n      this.lastDecodedFrames = decodedFrames;\n    }\n  };\n\n  _proto.checkFPSInterval = function checkFPSInterval() {\n    var video = this.video;\n\n    if (video) {\n      if (this.isVideoPlaybackQualityAvailable) {\n        var videoPlaybackQuality = video.getVideoPlaybackQuality();\n        this.checkFPS(video, videoPlaybackQuality.totalVideoFrames, videoPlaybackQuality.droppedVideoFrames);\n      } else {\n        this.checkFPS(video, video.webkitDecodedFrameCount, video.webkitDroppedFrameCount);\n      }\n    }\n  };\n\n  return FPSController;\n}(event_handler);\n\n/* harmony default export */ var fps_controller = (fps_controller_FPSController);\n// CONCATENATED MODULE: ./src/utils/xhr-loader.js\n/**\n * XHR based logger\n*/\n\n\nvar xhr_loader_XhrLoader = /*#__PURE__*/function () {\n  function XhrLoader(config) {\n    if (config && config.xhrSetup) {\n      this.xhrSetup = config.xhrSetup;\n    }\n  }\n\n  var _proto = XhrLoader.prototype;\n\n  _proto.destroy = function destroy() {\n    this.abort();\n    this.loader = null;\n  };\n\n  _proto.abort = function abort() {\n    var loader = this.loader;\n\n    if (loader && loader.readyState !== 4) {\n      this.stats.aborted = true;\n      loader.abort();\n    }\n\n    window.clearTimeout(this.requestTimeout);\n    this.requestTimeout = null;\n    window.clearTimeout(this.retryTimeout);\n    this.retryTimeout = null;\n  };\n\n  _proto.load = function load(context, config, callbacks) {\n    this.context = context;\n    this.config = config;\n    this.callbacks = callbacks;\n    this.stats = {\n      trequest: window.performance.now(),\n      retry: 0\n    };\n    this.retryDelay = config.retryDelay;\n    this.loadInternal();\n  };\n\n  _proto.loadInternal = function loadInternal() {\n    var xhr,\n        context = this.context;\n    xhr = this.loader = new window.XMLHttpRequest();\n    var stats = this.stats;\n    stats.tfirst = 0;\n    stats.loaded = 0;\n    var xhrSetup = this.xhrSetup;\n\n    try {\n      if (xhrSetup) {\n        try {\n          xhrSetup(xhr, context.url);\n        } catch (e) {\n          // fix xhrSetup: (xhr, url) => {xhr.setRequestHeader(\"Content-Language\", \"test\");}\n          // not working, as xhr.setRequestHeader expects xhr.readyState === OPEN\n          xhr.open('GET', context.url, true);\n          xhrSetup(xhr, context.url);\n        }\n      }\n\n      if (!xhr.readyState) {\n        xhr.open('GET', context.url, true);\n      }\n    } catch (e) {\n      // IE11 throws an exception on xhr.open if attempting to access an HTTP resource over HTTPS\n      this.callbacks.onError({\n        code: xhr.status,\n        text: e.message\n      }, context, xhr);\n      return;\n    }\n\n    if (context.rangeEnd) {\n      xhr.setRequestHeader('Range', 'bytes=' + context.rangeStart + '-' + (context.rangeEnd - 1));\n    }\n\n    xhr.onreadystatechange = this.readystatechange.bind(this);\n    xhr.onprogress = this.loadprogress.bind(this);\n    xhr.responseType = context.responseType; // setup timeout before we perform request\n\n    this.requestTimeout = window.setTimeout(this.loadtimeout.bind(this), this.config.timeout);\n    xhr.send();\n  };\n\n  _proto.readystatechange = function readystatechange(event) {\n    var xhr = event.currentTarget,\n        readyState = xhr.readyState,\n        stats = this.stats,\n        context = this.context,\n        config = this.config; // don't proceed if xhr has been aborted\n\n    if (stats.aborted) {\n      return;\n    } // >= HEADERS_RECEIVED\n\n\n    if (readyState >= 2) {\n      // clear xhr timeout and rearm it if readyState less than 4\n      window.clearTimeout(this.requestTimeout);\n\n      if (stats.tfirst === 0) {\n        stats.tfirst = Math.max(window.performance.now(), stats.trequest);\n      }\n\n      if (readyState === 4) {\n        var status = xhr.status; // http status between 200 to 299 are all successful\n\n        if (status >= 200 && status < 300) {\n          stats.tload = Math.max(stats.tfirst, window.performance.now());\n          var data, len;\n\n          if (context.responseType === 'arraybuffer') {\n            data = xhr.response;\n            len = data.byteLength;\n          } else {\n            data = xhr.responseText;\n            len = data.length;\n          }\n\n          stats.loaded = stats.total = len;\n          var response = {\n            url: xhr.responseURL,\n            data: data\n          };\n          this.callbacks.onSuccess(response, stats, context, xhr);\n        } else {\n          // if max nb of retries reached or if http status between 400 and 499 (such error cannot be recovered, retrying is useless), return error\n          if (stats.retry >= config.maxRetry || status >= 400 && status < 499) {\n            logger[\"logger\"].error(status + \" while loading \" + context.url);\n            this.callbacks.onError({\n              code: status,\n              text: xhr.statusText\n            }, context, xhr);\n          } else {\n            // retry\n            logger[\"logger\"].warn(status + \" while loading \" + context.url + \", retrying in \" + this.retryDelay + \"...\"); // aborts and resets internal state\n\n            this.destroy(); // schedule retry\n\n            this.retryTimeout = window.setTimeout(this.loadInternal.bind(this), this.retryDelay); // set exponential backoff\n\n            this.retryDelay = Math.min(2 * this.retryDelay, config.maxRetryDelay);\n            stats.retry++;\n          }\n        }\n      } else {\n        // readyState >= 2 AND readyState !==4 (readyState = HEADERS_RECEIVED || LOADING) rearm timeout as xhr not finished yet\n        this.requestTimeout = window.setTimeout(this.loadtimeout.bind(this), config.timeout);\n      }\n    }\n  };\n\n  _proto.loadtimeout = function loadtimeout() {\n    logger[\"logger\"].warn(\"timeout while loading \" + this.context.url);\n    this.callbacks.onTimeout(this.stats, this.context, null);\n  };\n\n  _proto.loadprogress = function loadprogress(event) {\n    var xhr = event.currentTarget,\n        stats = this.stats;\n    stats.loaded = event.loaded;\n\n    if (event.lengthComputable) {\n      stats.total = event.total;\n    }\n\n    var onProgress = this.callbacks.onProgress;\n\n    if (onProgress) {\n      // third arg is to provide on progress data\n      onProgress(stats, this.context, null, xhr);\n    }\n  };\n\n  return XhrLoader;\n}();\n\n/* harmony default export */ var xhr_loader = (xhr_loader_XhrLoader);\n// CONCATENATED MODULE: ./src/controller/audio-track-controller.js\nfunction audio_track_controller_defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if (\"value\" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }\n\nfunction audio_track_controller_createClass(Constructor, protoProps, staticProps) { if (protoProps) audio_track_controller_defineProperties(Constructor.prototype, protoProps); if (staticProps) audio_track_controller_defineProperties(Constructor, staticProps); return Constructor; }\n\nfunction audio_track_controller_inheritsLoose(subClass, superClass) { subClass.prototype = Object.create(superClass.prototype); subClass.prototype.constructor = subClass; subClass.__proto__ = superClass; }\n\n\n\n\n\n/**\n * @class AudioTrackController\n * @implements {EventHandler}\n *\n * Handles main manifest and audio-track metadata loaded,\n * owns and exposes the selectable audio-tracks data-models.\n *\n * Exposes internal interface to select available audio-tracks.\n *\n * Handles errors on loading audio-track playlists. Manages fallback mechanism\n * with redundants tracks (group-IDs).\n *\n * Handles level-loading and group-ID switches for video (fallback on video levels),\n * and eventually adapts the audio-track group-ID to match.\n *\n * @fires AUDIO_TRACK_LOADING\n * @fires AUDIO_TRACK_SWITCHING\n * @fires AUDIO_TRACKS_UPDATED\n * @fires ERROR\n *\n */\n\nvar audio_track_controller_AudioTrackController = /*#__PURE__*/function (_TaskLoop) {\n  audio_track_controller_inheritsLoose(AudioTrackController, _TaskLoop);\n\n  function AudioTrackController(hls) {\n    var _this;\n\n    _this = _TaskLoop.call(this, hls, events[\"default\"].MANIFEST_LOADING, events[\"default\"].MANIFEST_PARSED, events[\"default\"].AUDIO_TRACK_LOADED, events[\"default\"].AUDIO_TRACK_SWITCHED, events[\"default\"].LEVEL_LOADED, events[\"default\"].ERROR) || this;\n    /**\n     * @private\n     * Currently selected index in `tracks`\n     * @member {number} trackId\n     */\n\n    _this._trackId = -1;\n    /**\n     * @private\n     * If should select tracks according to default track attribute\n     * @member {boolean} _selectDefaultTrack\n     */\n\n    _this._selectDefaultTrack = true;\n    /**\n     * @public\n     * All tracks available\n     * @member {AudioTrack[]}\n     */\n\n    _this.tracks = [];\n    /**\n     * @public\n     * List of blacklisted audio track IDs (that have caused failure)\n     * @member {number[]}\n     */\n\n    _this.trackIdBlacklist = Object.create(null);\n    /**\n     * @public\n     * The currently running group ID for audio\n     * (we grab this on manifest-parsed and new level-loaded)\n     * @member {string}\n     */\n\n    _this.audioGroupId = null;\n    return _this;\n  }\n  /**\n   * Reset audio tracks on new manifest loading.\n   */\n\n\n  var _proto = AudioTrackController.prototype;\n\n  _proto.onManifestLoading = function onManifestLoading() {\n    this.tracks = [];\n    this._trackId = -1;\n    this._selectDefaultTrack = true;\n  }\n  /**\n   * Store tracks data from manifest parsed data.\n   *\n   * Trigger AUDIO_TRACKS_UPDATED event.\n   *\n   * @param {*} data\n   */\n  ;\n\n  _proto.onManifestParsed = function onManifestParsed(data) {\n    var tracks = this.tracks = data.audioTracks || [];\n    this.hls.trigger(events[\"default\"].AUDIO_TRACKS_UPDATED, {\n      audioTracks: tracks\n    });\n\n    this._selectAudioGroup(this.hls.nextLoadLevel);\n  }\n  /**\n   * Store track details of loaded track in our data-model.\n   *\n   * Set-up metadata update interval task for live-mode streams.\n   *\n   * @param {*} data\n   */\n  ;\n\n  _proto.onAudioTrackLoaded = function onAudioTrackLoaded(data) {\n    if (data.id >= this.tracks.length) {\n      logger[\"logger\"].warn('Invalid audio track id:', data.id);\n      return;\n    }\n\n    logger[\"logger\"].log(\"audioTrack \" + data.id + \" loaded\");\n    this.tracks[data.id].details = data.details; // check if current playlist is a live playlist\n    // and if we have already our reload interval setup\n\n    if (data.details.live && !this.hasInterval()) {\n      // if live playlist we will have to reload it periodically\n      // set reload period to playlist target duration\n      var updatePeriodMs = data.details.targetduration * 1000;\n      this.setInterval(updatePeriodMs);\n    }\n\n    if (!data.details.live && this.hasInterval()) {\n      // playlist is not live and timer is scheduled: cancel it\n      this.clearInterval();\n    }\n  }\n  /**\n   * Update the internal group ID to any audio-track we may have set manually\n   * or because of a failure-handling fallback.\n   *\n   * Quality-levels should update to that group ID in this case.\n   *\n   * @param {*} data\n   */\n  ;\n\n  _proto.onAudioTrackSwitched = function onAudioTrackSwitched(data) {\n    var audioGroupId = this.tracks[data.id].groupId;\n\n    if (audioGroupId && this.audioGroupId !== audioGroupId) {\n      this.audioGroupId = audioGroupId;\n    }\n  }\n  /**\n   * When a level gets loaded, if it has redundant audioGroupIds (in the same ordinality as it's redundant URLs)\n   * we are setting our audio-group ID internally to the one set, if it is different from the group ID currently set.\n   *\n   * If group-ID got update, we re-select the appropriate audio-track with this group-ID matching the currently\n   * selected one (based on NAME property).\n   *\n   * @param {*} data\n   */\n  ;\n\n  _proto.onLevelLoaded = function onLevelLoaded(data) {\n    this._selectAudioGroup(data.level);\n  }\n  /**\n   * Handle network errors loading audio track manifests\n   * and also pausing on any netwok errors.\n   *\n   * @param {ErrorEventData} data\n   */\n  ;\n\n  _proto.onError = function onError(data) {\n    // Only handle network errors\n    if (data.type !== errors[\"ErrorTypes\"].NETWORK_ERROR) {\n      return;\n    } // If fatal network error, cancel update task\n\n\n    if (data.fatal) {\n      this.clearInterval();\n    } // If not an audio-track loading error don't handle further\n\n\n    if (data.details !== errors[\"ErrorDetails\"].AUDIO_TRACK_LOAD_ERROR) {\n      return;\n    }\n\n    logger[\"logger\"].warn('Network failure on audio-track id:', data.context.id);\n\n    this._handleLoadError();\n  }\n  /**\n   * @type {AudioTrack[]} Audio-track list we own\n   */\n  ;\n\n  /**\n   * @private\n   * @param {number} newId\n   */\n  _proto._setAudioTrack = function _setAudioTrack(newId) {\n    // noop on same audio track id as already set\n    if (this._trackId === newId && this.tracks[this._trackId].details) {\n      logger[\"logger\"].debug('Same id as current audio-track passed, and track details available -> no-op');\n      return;\n    } // check if level idx is valid\n\n\n    if (newId < 0 || newId >= this.tracks.length) {\n      logger[\"logger\"].warn('Invalid id passed to audio-track controller');\n      return;\n    }\n\n    var audioTrack = this.tracks[newId];\n    logger[\"logger\"].log(\"Now switching to audio-track index \" + newId); // stopping live reloading timer if any\n\n    this.clearInterval();\n    this._trackId = newId;\n    var url = audioTrack.url,\n        type = audioTrack.type,\n        id = audioTrack.id;\n    this.hls.trigger(events[\"default\"].AUDIO_TRACK_SWITCHING, {\n      id: id,\n      type: type,\n      url: url\n    });\n\n    this._loadTrackDetailsIfNeeded(audioTrack);\n  }\n  /**\n   * @override\n   */\n  ;\n\n  _proto.doTick = function doTick() {\n    this._updateTrack(this._trackId);\n  }\n  /**\n   * @param levelId\n   * @private\n   */\n  ;\n\n  _proto._selectAudioGroup = function _selectAudioGroup(levelId) {\n    var levelInfo = this.hls.levels[levelId];\n\n    if (!levelInfo || !levelInfo.audioGroupIds) {\n      return;\n    }\n\n    var audioGroupId = levelInfo.audioGroupIds[levelInfo.urlId];\n\n    if (this.audioGroupId !== audioGroupId) {\n      this.audioGroupId = audioGroupId;\n\n      this._selectInitialAudioTrack();\n    }\n  }\n  /**\n   * Select initial track\n   * @private\n   */\n  ;\n\n  _proto._selectInitialAudioTrack = function _selectInitialAudioTrack() {\n    var _this2 = this;\n\n    var tracks = this.tracks;\n\n    if (!tracks.length) {\n      return;\n    }\n\n    var currentAudioTrack = this.tracks[this._trackId];\n    var name = null;\n\n    if (currentAudioTrack) {\n      name = currentAudioTrack.name;\n    } // Pre-select default tracks if there are any\n\n\n    if (this._selectDefaultTrack) {\n      var defaultTracks = tracks.filter(function (track) {\n        return track.default;\n      });\n\n      if (defaultTracks.length) {\n        tracks = defaultTracks;\n      } else {\n        logger[\"logger\"].warn('No default audio tracks defined');\n      }\n    }\n\n    var trackFound = false;\n\n    var traverseTracks = function traverseTracks() {\n      // Select track with right group ID\n      tracks.forEach(function (track) {\n        if (trackFound) {\n          return;\n        } // We need to match the (pre-)selected group ID\n        // and the NAME of the current track.\n\n\n        if ((!_this2.audioGroupId || track.groupId === _this2.audioGroupId) && (!name || name === track.name)) {\n          // If there was a previous track try to stay with the same `NAME`.\n          // It should be unique across tracks of same group, and consistent through redundant track groups.\n          _this2._setAudioTrack(track.id);\n\n          trackFound = true;\n        }\n      });\n    };\n\n    traverseTracks();\n\n    if (!trackFound) {\n      name = null;\n      traverseTracks();\n    }\n\n    if (!trackFound) {\n      logger[\"logger\"].error(\"No track found for running audio group-ID: \" + this.audioGroupId);\n      this.hls.trigger(events[\"default\"].ERROR, {\n        type: errors[\"ErrorTypes\"].MEDIA_ERROR,\n        details: errors[\"ErrorDetails\"].AUDIO_TRACK_LOAD_ERROR,\n        fatal: true\n      });\n    }\n  }\n  /**\n   * @private\n   * @param {AudioTrack} audioTrack\n   * @returns {boolean}\n   */\n  ;\n\n  _proto._needsTrackLoading = function _needsTrackLoading(audioTrack) {\n    var details = audioTrack.details,\n        url = audioTrack.url;\n\n    if (!details || details.live) {\n      // check if we face an audio track embedded in main playlist (audio track without URI attribute)\n      return !!url;\n    }\n\n    return false;\n  }\n  /**\n   * @private\n   * @param {AudioTrack} audioTrack\n   */\n  ;\n\n  _proto._loadTrackDetailsIfNeeded = function _loadTrackDetailsIfNeeded(audioTrack) {\n    if (this._needsTrackLoading(audioTrack)) {\n      var url = audioTrack.url,\n          id = audioTrack.id; // track not retrieved yet, or live playlist we need to (re)load it\n\n      logger[\"logger\"].log(\"loading audio-track playlist for id: \" + id);\n      this.hls.trigger(events[\"default\"].AUDIO_TRACK_LOADING, {\n        url: url,\n        id: id\n      });\n    }\n  }\n  /**\n   * @private\n   * @param {number} newId\n   */\n  ;\n\n  _proto._updateTrack = function _updateTrack(newId) {\n    // check if level idx is valid\n    if (newId < 0 || newId >= this.tracks.length) {\n      return;\n    } // stopping live reloading timer if any\n\n\n    this.clearInterval();\n    this._trackId = newId;\n    logger[\"logger\"].log(\"trying to update audio-track \" + newId);\n    var audioTrack = this.tracks[newId];\n\n    this._loadTrackDetailsIfNeeded(audioTrack);\n  }\n  /**\n   * @private\n   */\n  ;\n\n  _proto._handleLoadError = function _handleLoadError() {\n    // First, let's black list current track id\n    this.trackIdBlacklist[this._trackId] = true; // Let's try to fall back on a functional audio-track with the same group ID\n\n    var previousId = this._trackId;\n    var _this$tracks$previous = this.tracks[previousId],\n        name = _this$tracks$previous.name,\n        language = _this$tracks$previous.language,\n        groupId = _this$tracks$previous.groupId;\n    logger[\"logger\"].warn(\"Loading failed on audio track id: \" + previousId + \", group-id: \" + groupId + \", name/language: \\\"\" + name + \"\\\" / \\\"\" + language + \"\\\"\"); // Find a non-blacklisted track ID with the same NAME\n    // At least a track that is not blacklisted, thus on another group-ID.\n\n    var newId = previousId;\n\n    for (var i = 0; i < this.tracks.length; i++) {\n      if (this.trackIdBlacklist[i]) {\n        continue;\n      }\n\n      var newTrack = this.tracks[i];\n\n      if (newTrack.name === name) {\n        newId = i;\n        break;\n      }\n    }\n\n    if (newId === previousId) {\n      logger[\"logger\"].warn(\"No fallback audio-track found for name/language: \\\"\" + name + \"\\\" / \\\"\" + language + \"\\\"\");\n      return;\n    }\n\n    logger[\"logger\"].log('Attempting audio-track fallback id:', newId, 'group-id:', this.tracks[newId].groupId);\n\n    this._setAudioTrack(newId);\n  };\n\n  audio_track_controller_createClass(AudioTrackController, [{\n    key: \"audioTracks\",\n    get: function get() {\n      return this.tracks;\n    }\n    /**\n     * @type {number} Index into audio-tracks list of currently selected track.\n     */\n\n  }, {\n    key: \"audioTrack\",\n    get: function get() {\n      return this._trackId;\n    }\n    /**\n     * Select current track by index\n     */\n    ,\n    set: function set(newId) {\n      this._setAudioTrack(newId); // If audio track is selected from API then don't choose from the manifest default track\n\n\n      this._selectDefaultTrack = false;\n    }\n  }]);\n\n  return AudioTrackController;\n}(TaskLoop);\n\n/* harmony default export */ var audio_track_controller = (audio_track_controller_AudioTrackController);\n// CONCATENATED MODULE: ./src/controller/audio-stream-controller.js\n\n\n\n\nfunction audio_stream_controller_defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if (\"value\" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }\n\nfunction audio_stream_controller_createClass(Constructor, protoProps, staticProps) { if (protoProps) audio_stream_controller_defineProperties(Constructor.prototype, protoProps); if (staticProps) audio_stream_controller_defineProperties(Constructor, staticProps); return Constructor; }\n\nfunction audio_stream_controller_inheritsLoose(subClass, superClass) { subClass.prototype = Object.create(superClass.prototype); subClass.prototype.constructor = subClass; subClass.__proto__ = superClass; }\n\n/*\n * Audio Stream Controller\n*/\n\n\n\n\n\n\n\n\n\n\n\n\n\nvar audio_stream_controller_window = window,\n    audio_stream_controller_performance = audio_stream_controller_window.performance;\nvar audio_stream_controller_TICK_INTERVAL = 100; // how often to tick in ms\n\nvar audio_stream_controller_AudioStreamController = /*#__PURE__*/function (_BaseStreamController) {\n  audio_stream_controller_inheritsLoose(AudioStreamController, _BaseStreamController);\n\n  function AudioStreamController(hls, fragmentTracker) {\n    var _this;\n\n    _this = _BaseStreamController.call(this, hls, events[\"default\"].MEDIA_ATTACHED, events[\"default\"].MEDIA_DETACHING, events[\"default\"].AUDIO_TRACKS_UPDATED, events[\"default\"].AUDIO_TRACK_SWITCHING, events[\"default\"].AUDIO_TRACK_LOADED, events[\"default\"].KEY_LOADED, events[\"default\"].FRAG_LOADED, events[\"default\"].FRAG_PARSING_INIT_SEGMENT, events[\"default\"].FRAG_PARSING_DATA, events[\"default\"].FRAG_PARSED, events[\"default\"].ERROR, events[\"default\"].BUFFER_RESET, events[\"default\"].BUFFER_CREATED, events[\"default\"].BUFFER_APPENDED, events[\"default\"].BUFFER_FLUSHED, events[\"default\"].INIT_PTS_FOUND) || this;\n    _this.fragmentTracker = fragmentTracker;\n    _this.config = hls.config;\n    _this.audioCodecSwap = false;\n    _this._state = State.STOPPED;\n    _this.initPTS = [];\n    _this.waitingFragment = null;\n    _this.videoTrackCC = null;\n    return _this;\n  } // Signal that video PTS was found\n\n\n  var _proto = AudioStreamController.prototype;\n\n  _proto.onInitPtsFound = function onInitPtsFound(data) {\n    var demuxerId = data.id,\n        cc = data.frag.cc,\n        initPTS = data.initPTS;\n\n    if (demuxerId === 'main') {\n      // Always update the new INIT PTS\n      // Can change due level switch\n      this.initPTS[cc] = initPTS;\n      this.videoTrackCC = cc;\n      logger[\"logger\"].log(\"InitPTS for cc: \" + cc + \" found from video track: \" + initPTS); // If we are waiting we need to demux/remux the waiting frag\n      // With the new initPTS\n\n      if (this.state === State.WAITING_INIT_PTS) {\n        this.tick();\n      }\n    }\n  };\n\n  _proto.startLoad = function startLoad(startPosition) {\n    if (this.tracks) {\n      var lastCurrentTime = this.lastCurrentTime;\n      this.stopLoad();\n      this.setInterval(audio_stream_controller_TICK_INTERVAL);\n      this.fragLoadError = 0;\n\n      if (lastCurrentTime > 0 && startPosition === -1) {\n        logger[\"logger\"].log(\"audio:override startPosition with lastCurrentTime @\" + lastCurrentTime.toFixed(3));\n        this.state = State.IDLE;\n      } else {\n        this.lastCurrentTime = this.startPosition ? this.startPosition : startPosition;\n        this.state = State.STARTING;\n      }\n\n      this.nextLoadPosition = this.startPosition = this.lastCurrentTime;\n      this.tick();\n    } else {\n      this.startPosition = startPosition;\n      this.state = State.STOPPED;\n    }\n  };\n\n  _proto.doTick = function doTick() {\n    var pos,\n        track,\n        trackDetails,\n        hls = this.hls,\n        config = hls.config; // logger.log('audioStream:' + this.state);\n\n    switch (this.state) {\n      case State.ERROR: // don't do anything in error state to avoid breaking further ...\n\n      case State.PAUSED: // don't do anything in paused state either ...\n\n      case State.BUFFER_FLUSHING:\n        break;\n\n      case State.STARTING:\n        this.state = State.WAITING_TRACK;\n        this.loadedmetadata = false;\n        break;\n\n      case State.IDLE:\n        var tracks = this.tracks; // audio tracks not received => exit loop\n\n        if (!tracks) {\n          break;\n        } // if video not attached AND\n        // start fragment already requested OR start frag prefetch disable\n        // exit loop\n        // => if media not attached but start frag prefetch is enabled and start frag not requested yet, we will not exit loop\n\n\n        if (!this.media && (this.startFragRequested || !config.startFragPrefetch)) {\n          break;\n        } // determine next candidate fragment to be loaded, based on current position and\n        //  end of buffer position\n        // if we have not yet loaded any fragment, start loading from start position\n\n\n        if (this.loadedmetadata) {\n          pos = this.media.currentTime;\n        } else {\n          pos = this.nextLoadPosition;\n\n          if (pos === undefined) {\n            break;\n          }\n        }\n\n        var media = this.mediaBuffer ? this.mediaBuffer : this.media;\n        var videoBuffer = this.videoBuffer ? this.videoBuffer : this.media;\n        var maxBufferHole = pos < config.maxBufferHole ? Math.max(MAX_START_GAP_JUMP, config.maxBufferHole) : config.maxBufferHole;\n        var bufferInfo = BufferHelper.bufferInfo(media, pos, maxBufferHole);\n        var mainBufferInfo = BufferHelper.bufferInfo(videoBuffer, pos, maxBufferHole);\n        var bufferLen = bufferInfo.len;\n        var bufferEnd = bufferInfo.end;\n        var fragPrevious = this.fragPrevious; // ensure we buffer at least config.maxBufferLength (default 30s) or config.maxMaxBufferLength (default: 600s)\n        // whichever is smaller.\n        // once we reach that threshold, don't buffer more than video (mainBufferInfo.len)\n\n        var maxConfigBuffer = Math.min(config.maxBufferLength, config.maxMaxBufferLength);\n        var maxBufLen = Math.max(maxConfigBuffer, mainBufferInfo.len);\n        var audioSwitch = this.audioSwitch;\n        var trackId = this.trackId; // if buffer length is less than maxBufLen try to load a new fragment\n\n        if ((bufferLen < maxBufLen || audioSwitch) && trackId < tracks.length) {\n          trackDetails = tracks[trackId].details; // if track info not retrieved yet, switch state and wait for track retrieval\n\n          if (typeof trackDetails === 'undefined') {\n            this.state = State.WAITING_TRACK;\n            break;\n          }\n\n          if (!audioSwitch && this._streamEnded(bufferInfo, trackDetails)) {\n            this.hls.trigger(events[\"default\"].BUFFER_EOS, {\n              type: 'audio'\n            });\n            this.state = State.ENDED;\n            return;\n          } // find fragment index, contiguous with end of buffer position\n\n\n          var fragments = trackDetails.fragments,\n              fragLen = fragments.length,\n              start = fragments[0].start,\n              end = fragments[fragLen - 1].start + fragments[fragLen - 1].duration,\n              frag; // When switching audio track, reload audio as close as possible to currentTime\n\n          if (audioSwitch) {\n            if (trackDetails.live && !trackDetails.PTSKnown) {\n              logger[\"logger\"].log('switching audiotrack, live stream, unknown PTS,load first fragment');\n              bufferEnd = 0;\n            } else {\n              bufferEnd = pos; // if currentTime (pos) is less than alt audio playlist start time, it means that alt audio is ahead of currentTime\n\n              if (trackDetails.PTSKnown && pos < start) {\n                // if everything is buffered from pos to start or if audio buffer upfront, let's seek to start\n                if (bufferInfo.end > start || bufferInfo.nextStart) {\n                  logger[\"logger\"].log('alt audio track ahead of main track, seek to start of alt audio track');\n                  this.media.currentTime = start + 0.05;\n                } else {\n                  return;\n                }\n              }\n            }\n          }\n\n          if (trackDetails.initSegment && !trackDetails.initSegment.data) {\n            frag = trackDetails.initSegment;\n          } // eslint-disable-line brace-style\n          // if bufferEnd before start of playlist, load first fragment\n          else if (bufferEnd <= start) {\n              frag = fragments[0];\n\n              if (this.videoTrackCC !== null && frag.cc !== this.videoTrackCC) {\n                // Ensure we find a fragment which matches the continuity of the video track\n                frag = findFragWithCC(fragments, this.videoTrackCC);\n              }\n\n              if (trackDetails.live && frag.loadIdx && frag.loadIdx === this.fragLoadIdx) {\n                // we just loaded this first fragment, and we are still lagging behind the start of the live playlist\n                // let's force seek to start\n                var nextBuffered = bufferInfo.nextStart ? bufferInfo.nextStart : start;\n                logger[\"logger\"].log(\"no alt audio available @currentTime:\" + this.media.currentTime + \", seeking @\" + (nextBuffered + 0.05));\n                this.media.currentTime = nextBuffered + 0.05;\n                return;\n              }\n            } else {\n              var foundFrag;\n              var maxFragLookUpTolerance = config.maxFragLookUpTolerance;\n              var fragNext = fragPrevious ? fragments[fragPrevious.sn - fragments[0].sn + 1] : undefined;\n\n              var fragmentWithinToleranceTest = function fragmentWithinToleranceTest(candidate) {\n                // offset should be within fragment boundary - config.maxFragLookUpTolerance\n                // this is to cope with situations like\n                // bufferEnd = 9.991\n                // frag[Ø] : [0,10]\n                // frag[1] : [10,20]\n                // bufferEnd is within frag[0] range ... although what we are expecting is to return frag[1] here\n                //              frag start               frag start+duration\n                //                  |-----------------------------|\n                //              <--->                         <--->\n                //  ...--------><-----------------------------><---------....\n                // previous frag         matching fragment         next frag\n                //  return -1             return 0                 return 1\n                // logger.log(`level/sn/start/end/bufEnd:${level}/${candidate.sn}/${candidate.start}/${(candidate.start+candidate.duration)}/${bufferEnd}`);\n                // Set the lookup tolerance to be small enough to detect the current segment - ensures we don't skip over very small segments\n                var candidateLookupTolerance = Math.min(maxFragLookUpTolerance, candidate.duration);\n\n                if (candidate.start + candidate.duration - candidateLookupTolerance <= bufferEnd) {\n                  return 1;\n                } else if (candidate.start - candidateLookupTolerance > bufferEnd && candidate.start) {\n                  // if maxFragLookUpTolerance will have negative value then don't return -1 for first element\n                  return -1;\n                }\n\n                return 0;\n              };\n\n              if (bufferEnd < end) {\n                if (bufferEnd > end - maxFragLookUpTolerance) {\n                  maxFragLookUpTolerance = 0;\n                } // Prefer the next fragment if it's within tolerance\n\n\n                if (fragNext && !fragmentWithinToleranceTest(fragNext)) {\n                  foundFrag = fragNext;\n                } else {\n                  foundFrag = binary_search.search(fragments, fragmentWithinToleranceTest);\n                }\n              } else {\n                // reach end of playlist\n                foundFrag = fragments[fragLen - 1];\n              }\n\n              if (foundFrag) {\n                frag = foundFrag;\n                start = foundFrag.start; // logger.log('find SN matching with pos:' +  bufferEnd + ':' + frag.sn);\n\n                if (fragPrevious && frag.level === fragPrevious.level && frag.sn === fragPrevious.sn) {\n                  if (frag.sn < trackDetails.endSN) {\n                    frag = fragments[frag.sn + 1 - trackDetails.startSN];\n                    logger[\"logger\"].log(\"SN just loaded, load next one: \" + frag.sn);\n                  } else {\n                    frag = null;\n                  }\n                }\n              }\n            }\n\n          if (frag) {\n            // logger.log('      loading frag ' + i +',pos/bufEnd:' + pos.toFixed(3) + '/' + bufferEnd.toFixed(3));\n            if (frag.encrypted) {\n              logger[\"logger\"].log(\"Loading key for \" + frag.sn + \" of [\" + trackDetails.startSN + \" ,\" + trackDetails.endSN + \"],track \" + trackId);\n              this.state = State.KEY_LOADING;\n              hls.trigger(events[\"default\"].KEY_LOADING, {\n                frag: frag\n              });\n            } else {\n              // only load if fragment is not loaded or if in audio switch\n              // we force a frag loading in audio switch as fragment tracker might not have evicted previous frags in case of quick audio switch\n              this.fragCurrent = frag;\n\n              if (audioSwitch || this.fragmentTracker.getState(frag) === FragmentState.NOT_LOADED) {\n                logger[\"logger\"].log(\"Loading \" + frag.sn + \", cc: \" + frag.cc + \" of [\" + trackDetails.startSN + \" ,\" + trackDetails.endSN + \"],track \" + trackId + \", currentTime:\" + pos + \",bufferEnd:\" + bufferEnd.toFixed(3));\n\n                if (frag.sn !== 'initSegment') {\n                  this.startFragRequested = true;\n                }\n\n                if (Object(number_isFinite[\"isFiniteNumber\"])(frag.sn)) {\n                  this.nextLoadPosition = frag.start + frag.duration;\n                }\n\n                hls.trigger(events[\"default\"].FRAG_LOADING, {\n                  frag: frag\n                });\n                this.state = State.FRAG_LOADING;\n              }\n            }\n          }\n        }\n\n        break;\n\n      case State.WAITING_TRACK:\n        track = this.tracks[this.trackId]; // check if playlist is already loaded\n\n        if (track && track.details) {\n          this.state = State.IDLE;\n        }\n\n        break;\n\n      case State.FRAG_LOADING_WAITING_RETRY:\n        var now = audio_stream_controller_performance.now();\n        var retryDate = this.retryDate;\n        media = this.media;\n        var isSeeking = media && media.seeking; // if current time is gt than retryDate, or if media seeking let's switch to IDLE state to retry loading\n\n        if (!retryDate || now >= retryDate || isSeeking) {\n          logger[\"logger\"].log('audioStreamController: retryDate reached, switch back to IDLE state');\n          this.state = State.IDLE;\n        }\n\n        break;\n\n      case State.WAITING_INIT_PTS:\n        var videoTrackCC = this.videoTrackCC;\n\n        if (this.initPTS[videoTrackCC] === undefined) {\n          break;\n        } // Ensure we don't get stuck in the WAITING_INIT_PTS state if the waiting frag CC doesn't match any initPTS\n\n\n        var waitingFrag = this.waitingFragment;\n\n        if (waitingFrag) {\n          var waitingFragCC = waitingFrag.frag.cc;\n\n          if (videoTrackCC !== waitingFragCC) {\n            track = this.tracks[this.trackId];\n\n            if (track.details && track.details.live) {\n              logger[\"logger\"].warn(\"Waiting fragment CC (\" + waitingFragCC + \") does not match video track CC (\" + videoTrackCC + \")\");\n              this.waitingFragment = null;\n              this.state = State.IDLE;\n            }\n          } else {\n            this.state = State.FRAG_LOADING;\n            this.onFragLoaded(this.waitingFragment);\n            this.waitingFragment = null;\n          }\n        } else {\n          this.state = State.IDLE;\n        }\n\n        break;\n\n      case State.STOPPED:\n      case State.FRAG_LOADING:\n      case State.PARSING:\n      case State.PARSED:\n      case State.ENDED:\n        break;\n\n      default:\n        break;\n    }\n  };\n\n  _proto.onMediaAttached = function onMediaAttached(data) {\n    var media = this.media = this.mediaBuffer = data.media;\n    this.onvseeking = this.onMediaSeeking.bind(this);\n    this.onvended = this.onMediaEnded.bind(this);\n    media.addEventListener('seeking', this.onvseeking);\n    media.addEventListener('ended', this.onvended);\n    var config = this.config;\n\n    if (this.tracks && config.autoStartLoad) {\n      this.startLoad(config.startPosition);\n    }\n  };\n\n  _proto.onMediaDetaching = function onMediaDetaching() {\n    var media = this.media;\n\n    if (media && media.ended) {\n      logger[\"logger\"].log('MSE detaching and video ended, reset startPosition');\n      this.startPosition = this.lastCurrentTime = 0;\n    } // remove video listeners\n\n\n    if (media) {\n      media.removeEventListener('seeking', this.onvseeking);\n      media.removeEventListener('ended', this.onvended);\n      this.onvseeking = this.onvseeked = this.onvended = null;\n    }\n\n    this.media = this.mediaBuffer = this.videoBuffer = null;\n    this.loadedmetadata = false;\n    this.fragmentTracker.removeAllFragments();\n    this.stopLoad();\n  };\n\n  _proto.onAudioTracksUpdated = function onAudioTracksUpdated(data) {\n    logger[\"logger\"].log('audio tracks updated');\n    this.tracks = data.audioTracks;\n  };\n\n  _proto.onAudioTrackSwitching = function onAudioTrackSwitching(data) {\n    // if any URL found on new audio track, it is an alternate audio track\n    var altAudio = !!data.url;\n    this.trackId = data.id;\n    this.fragCurrent = null;\n    this.state = State.PAUSED;\n    this.waitingFragment = null; // destroy useless demuxer when switching audio to main\n\n    if (!altAudio) {\n      if (this.demuxer) {\n        this.demuxer.destroy();\n        this.demuxer = null;\n      }\n    } else {\n      // switching to audio track, start timer if not already started\n      this.setInterval(audio_stream_controller_TICK_INTERVAL);\n    } // should we switch tracks ?\n\n\n    if (altAudio) {\n      this.audioSwitch = true; // main audio track are handled by stream-controller, just do something if switching to alt audio track\n\n      this.state = State.IDLE;\n    }\n\n    this.tick();\n  };\n\n  _proto.onAudioTrackLoaded = function onAudioTrackLoaded(data) {\n    var newDetails = data.details,\n        trackId = data.id,\n        track = this.tracks[trackId],\n        duration = newDetails.totalduration,\n        sliding = 0;\n    logger[\"logger\"].log(\"track \" + trackId + \" loaded [\" + newDetails.startSN + \",\" + newDetails.endSN + \"],duration:\" + duration);\n\n    if (newDetails.live) {\n      var curDetails = track.details;\n\n      if (curDetails && newDetails.fragments.length > 0) {\n        // we already have details for that level, merge them\n        mergeDetails(curDetails, newDetails);\n        sliding = newDetails.fragments[0].start; // TODO\n        // this.liveSyncPosition = this.computeLivePosition(sliding, curDetails);\n\n        if (newDetails.PTSKnown) {\n          logger[\"logger\"].log(\"live audio playlist sliding:\" + sliding.toFixed(3));\n        } else {\n          logger[\"logger\"].log('live audio playlist - outdated PTS, unknown sliding');\n        }\n      } else {\n        newDetails.PTSKnown = false;\n        logger[\"logger\"].log('live audio playlist - first load, unknown sliding');\n      }\n    } else {\n      newDetails.PTSKnown = false;\n    }\n\n    track.details = newDetails; // compute start position\n\n    if (!this.startFragRequested) {\n      // compute start position if set to -1. use it straight away if value is defined\n      if (this.startPosition === -1) {\n        // first, check if start time offset has been set in playlist, if yes, use this value\n        var startTimeOffset = newDetails.startTimeOffset;\n\n        if (Object(number_isFinite[\"isFiniteNumber\"])(startTimeOffset)) {\n          logger[\"logger\"].log(\"start time offset found in playlist, adjust startPosition to \" + startTimeOffset);\n          this.startPosition = startTimeOffset;\n        } else {\n          if (newDetails.live) {\n            this.startPosition = this.computeLivePosition(sliding, newDetails);\n            logger[\"logger\"].log(\"compute startPosition for audio-track to \" + this.startPosition);\n          } else {\n            this.startPosition = 0;\n          }\n        }\n      }\n\n      this.nextLoadPosition = this.startPosition;\n    } // only switch batck to IDLE state if we were waiting for track to start downloading a new fragment\n\n\n    if (this.state === State.WAITING_TRACK) {\n      this.state = State.IDLE;\n    } // trigger handler right now\n\n\n    this.tick();\n  };\n\n  _proto.onKeyLoaded = function onKeyLoaded() {\n    if (this.state === State.KEY_LOADING) {\n      this.state = State.IDLE;\n      this.tick();\n    }\n  };\n\n  _proto.onFragLoaded = function onFragLoaded(data) {\n    var fragCurrent = this.fragCurrent,\n        fragLoaded = data.frag;\n\n    if (this.state === State.FRAG_LOADING && fragCurrent && fragLoaded.type === 'audio' && fragLoaded.level === fragCurrent.level && fragLoaded.sn === fragCurrent.sn) {\n      var track = this.tracks[this.trackId],\n          details = track.details,\n          duration = details.totalduration,\n          trackId = fragCurrent.level,\n          sn = fragCurrent.sn,\n          cc = fragCurrent.cc,\n          audioCodec = this.config.defaultAudioCodec || track.audioCodec || 'mp4a.40.2',\n          stats = this.stats = data.stats;\n\n      if (sn === 'initSegment') {\n        this.state = State.IDLE;\n        stats.tparsed = stats.tbuffered = audio_stream_controller_performance.now();\n        details.initSegment.data = data.payload;\n        this.hls.trigger(events[\"default\"].FRAG_BUFFERED, {\n          stats: stats,\n          frag: fragCurrent,\n          id: 'audio'\n        });\n        this.tick();\n      } else {\n        this.state = State.PARSING; // transmux the MPEG-TS data to ISO-BMFF segments\n\n        this.appended = false;\n\n        if (!this.demuxer) {\n          this.demuxer = new demux_demuxer(this.hls, 'audio');\n        } // Check if we have video initPTS\n        // If not we need to wait for it\n\n\n        var initPTS = this.initPTS[cc];\n        var initSegmentData = details.initSegment ? details.initSegment.data : [];\n\n        if (details.initSegment || initPTS !== undefined) {\n          this.pendingBuffering = true;\n          logger[\"logger\"].log(\"Demuxing \" + sn + \" of [\" + details.startSN + \" ,\" + details.endSN + \"],track \" + trackId); // time Offset is accurate if level PTS is known, or if playlist is not sliding (not live)\n\n          var accurateTimeOffset = false; // details.PTSKnown || !details.live;\n\n          this.demuxer.push(data.payload, initSegmentData, audioCodec, null, fragCurrent, duration, accurateTimeOffset, initPTS);\n        } else {\n          logger[\"logger\"].log(\"unknown video PTS for continuity counter \" + cc + \", waiting for video PTS before demuxing audio frag \" + sn + \" of [\" + details.startSN + \" ,\" + details.endSN + \"],track \" + trackId);\n          this.waitingFragment = data;\n          this.state = State.WAITING_INIT_PTS;\n        }\n      }\n    }\n\n    this.fragLoadError = 0;\n  };\n\n  _proto.onFragParsingInitSegment = function onFragParsingInitSegment(data) {\n    var fragCurrent = this.fragCurrent;\n    var fragNew = data.frag;\n\n    if (fragCurrent && data.id === 'audio' && fragNew.sn === fragCurrent.sn && fragNew.level === fragCurrent.level && this.state === State.PARSING) {\n      var tracks = data.tracks,\n          track; // delete any video track found on audio demuxer\n\n      if (tracks.video) {\n        delete tracks.video;\n      } // include levelCodec in audio and video tracks\n\n\n      track = tracks.audio;\n\n      if (track) {\n        track.levelCodec = track.codec;\n        track.id = data.id;\n        this.hls.trigger(events[\"default\"].BUFFER_CODECS, tracks);\n        logger[\"logger\"].log(\"audio track:audio,container:\" + track.container + \",codecs[level/parsed]=[\" + track.levelCodec + \"/\" + track.codec + \"]\");\n        var initSegment = track.initSegment;\n\n        if (initSegment) {\n          var appendObj = {\n            type: 'audio',\n            data: initSegment,\n            parent: 'audio',\n            content: 'initSegment'\n          };\n\n          if (this.audioSwitch) {\n            this.pendingData = [appendObj];\n          } else {\n            this.appended = true; // arm pending Buffering flag before appending a segment\n\n            this.pendingBuffering = true;\n            this.hls.trigger(events[\"default\"].BUFFER_APPENDING, appendObj);\n          }\n        } // trigger handler right now\n\n\n        this.tick();\n      }\n    }\n  };\n\n  _proto.onFragParsingData = function onFragParsingData(data) {\n    var _this2 = this;\n\n    var fragCurrent = this.fragCurrent;\n    var fragNew = data.frag;\n\n    if (fragCurrent && data.id === 'audio' && data.type === 'audio' && fragNew.sn === fragCurrent.sn && fragNew.level === fragCurrent.level && this.state === State.PARSING) {\n      var trackId = this.trackId,\n          track = this.tracks[trackId],\n          hls = this.hls;\n\n      if (!Object(number_isFinite[\"isFiniteNumber\"])(data.endPTS)) {\n        data.endPTS = data.startPTS + fragCurrent.duration;\n        data.endDTS = data.startDTS + fragCurrent.duration;\n      }\n\n      fragCurrent.addElementaryStream(ElementaryStreamTypes.AUDIO);\n      logger[\"logger\"].log(\"parsed \" + data.type + \",PTS:[\" + data.startPTS.toFixed(3) + \",\" + data.endPTS.toFixed(3) + \"],DTS:[\" + data.startDTS.toFixed(3) + \"/\" + data.endDTS.toFixed(3) + \"],nb:\" + data.nb);\n      updateFragPTSDTS(track.details, fragCurrent, data.startPTS, data.endPTS);\n      var audioSwitch = this.audioSwitch,\n          media = this.media,\n          appendOnBufferFlush = false; // Only flush audio from old audio tracks when PTS is known on new audio track\n\n      if (audioSwitch) {\n        if (media && media.readyState) {\n          var currentTime = media.currentTime;\n          logger[\"logger\"].log('switching audio track : currentTime:' + currentTime);\n\n          if (currentTime >= data.startPTS) {\n            logger[\"logger\"].log('switching audio track : flushing all audio');\n            this.state = State.BUFFER_FLUSHING;\n            hls.trigger(events[\"default\"].BUFFER_FLUSHING, {\n              startOffset: 0,\n              endOffset: Number.POSITIVE_INFINITY,\n              type: 'audio'\n            });\n            appendOnBufferFlush = true; // Lets announce that the initial audio track switch flush occur\n\n            this.audioSwitch = false;\n            hls.trigger(events[\"default\"].AUDIO_TRACK_SWITCHED, {\n              id: trackId\n            });\n          }\n        } else {\n          // Lets announce that the initial audio track switch flush occur\n          this.audioSwitch = false;\n          hls.trigger(events[\"default\"].AUDIO_TRACK_SWITCHED, {\n            id: trackId\n          });\n        }\n      }\n\n      var pendingData = this.pendingData;\n\n      if (!pendingData) {\n        logger[\"logger\"].warn('Apparently attempt to enqueue media payload without codec initialization data upfront');\n        hls.trigger(events[\"default\"].ERROR, {\n          type: errors[\"ErrorTypes\"].MEDIA_ERROR,\n          details: null,\n          fatal: true\n        });\n        return;\n      }\n\n      if (!this.audioSwitch) {\n        [data.data1, data.data2].forEach(function (buffer) {\n          if (buffer && buffer.length) {\n            pendingData.push({\n              type: data.type,\n              data: buffer,\n              parent: 'audio',\n              content: 'data'\n            });\n          }\n        });\n\n        if (!appendOnBufferFlush && pendingData.length) {\n          pendingData.forEach(function (appendObj) {\n            // only append in PARSING state (rationale is that an appending error could happen synchronously on first segment appending)\n            // in that case it is useless to append following segments\n            if (_this2.state === State.PARSING) {\n              // arm pending Buffering flag before appending a segment\n              _this2.pendingBuffering = true;\n\n              _this2.hls.trigger(events[\"default\"].BUFFER_APPENDING, appendObj);\n            }\n          });\n          this.pendingData = [];\n          this.appended = true;\n        }\n      } // trigger handler right now\n\n\n      this.tick();\n    }\n  };\n\n  _proto.onFragParsed = function onFragParsed(data) {\n    var fragCurrent = this.fragCurrent;\n    var fragNew = data.frag;\n\n    if (fragCurrent && data.id === 'audio' && fragNew.sn === fragCurrent.sn && fragNew.level === fragCurrent.level && this.state === State.PARSING) {\n      this.stats.tparsed = audio_stream_controller_performance.now();\n      this.state = State.PARSED;\n\n      this._checkAppendedParsed();\n    }\n  };\n\n  _proto.onBufferReset = function onBufferReset() {\n    // reset reference to sourcebuffers\n    this.mediaBuffer = this.videoBuffer = null;\n    this.loadedmetadata = false;\n  };\n\n  _proto.onBufferCreated = function onBufferCreated(data) {\n    var audioTrack = data.tracks.audio;\n\n    if (audioTrack) {\n      this.mediaBuffer = audioTrack.buffer;\n      this.loadedmetadata = true;\n    }\n\n    if (data.tracks.video) {\n      this.videoBuffer = data.tracks.video.buffer;\n    }\n  };\n\n  _proto.onBufferAppended = function onBufferAppended(data) {\n    if (data.parent === 'audio') {\n      var state = this.state;\n\n      if (state === State.PARSING || state === State.PARSED) {\n        // check if all buffers have been appended\n        this.pendingBuffering = data.pending > 0;\n\n        this._checkAppendedParsed();\n      }\n    }\n  };\n\n  _proto._checkAppendedParsed = function _checkAppendedParsed() {\n    // trigger handler right now\n    if (this.state === State.PARSED && (!this.appended || !this.pendingBuffering)) {\n      var frag = this.fragCurrent,\n          stats = this.stats,\n          hls = this.hls;\n\n      if (frag) {\n        this.fragPrevious = frag;\n        stats.tbuffered = audio_stream_controller_performance.now();\n        hls.trigger(events[\"default\"].FRAG_BUFFERED, {\n          stats: stats,\n          frag: frag,\n          id: 'audio'\n        });\n        var media = this.mediaBuffer ? this.mediaBuffer : this.media;\n\n        if (media) {\n          logger[\"logger\"].log(\"audio buffered : \" + time_ranges.toString(media.buffered));\n        }\n\n        if (this.audioSwitch && this.appended) {\n          this.audioSwitch = false;\n          hls.trigger(events[\"default\"].AUDIO_TRACK_SWITCHED, {\n            id: this.trackId\n          });\n        }\n\n        this.state = State.IDLE;\n      }\n\n      this.tick();\n    }\n  };\n\n  _proto.onError = function onError(data) {\n    var frag = data.frag; // don't handle frag error not related to audio fragment\n\n    if (frag && frag.type !== 'audio') {\n      return;\n    }\n\n    switch (data.details) {\n      case errors[\"ErrorDetails\"].FRAG_LOAD_ERROR:\n      case errors[\"ErrorDetails\"].FRAG_LOAD_TIMEOUT:\n        var _frag = data.frag; // don't handle frag error not related to audio fragment\n\n        if (_frag && _frag.type !== 'audio') {\n          break;\n        }\n\n        if (!data.fatal) {\n          var loadError = this.fragLoadError;\n\n          if (loadError) {\n            loadError++;\n          } else {\n            loadError = 1;\n          }\n\n          var config = this.config;\n\n          if (loadError <= config.fragLoadingMaxRetry) {\n            this.fragLoadError = loadError; // exponential backoff capped to config.fragLoadingMaxRetryTimeout\n\n            var delay = Math.min(Math.pow(2, loadError - 1) * config.fragLoadingRetryDelay, config.fragLoadingMaxRetryTimeout);\n            logger[\"logger\"].warn(\"AudioStreamController: frag loading failed, retry in \" + delay + \" ms\");\n            this.retryDate = audio_stream_controller_performance.now() + delay; // retry loading state\n\n            this.state = State.FRAG_LOADING_WAITING_RETRY;\n          } else {\n            logger[\"logger\"].error(\"AudioStreamController: \" + data.details + \" reaches max retry, redispatch as fatal ...\"); // switch error to fatal\n\n            data.fatal = true;\n            this.state = State.ERROR;\n          }\n        }\n\n        break;\n\n      case errors[\"ErrorDetails\"].AUDIO_TRACK_LOAD_ERROR:\n      case errors[\"ErrorDetails\"].AUDIO_TRACK_LOAD_TIMEOUT:\n      case errors[\"ErrorDetails\"].KEY_LOAD_ERROR:\n      case errors[\"ErrorDetails\"].KEY_LOAD_TIMEOUT:\n        //  when in ERROR state, don't switch back to IDLE state in case a non-fatal error is received\n        if (this.state !== State.ERROR) {\n          // if fatal error, stop processing, otherwise move to IDLE to retry loading\n          this.state = data.fatal ? State.ERROR : State.IDLE;\n          logger[\"logger\"].warn(\"AudioStreamController: \" + data.details + \" while loading frag, now switching to \" + this.state + \" state ...\");\n        }\n\n        break;\n\n      case errors[\"ErrorDetails\"].BUFFER_FULL_ERROR:\n        // if in appending state\n        if (data.parent === 'audio' && (this.state === State.PARSING || this.state === State.PARSED)) {\n          var media = this.mediaBuffer,\n              currentTime = this.media.currentTime,\n              mediaBuffered = media && BufferHelper.isBuffered(media, currentTime) && BufferHelper.isBuffered(media, currentTime + 0.5); // reduce max buf len if current position is buffered\n\n          if (mediaBuffered) {\n            var _config = this.config;\n\n            if (_config.maxMaxBufferLength >= _config.maxBufferLength) {\n              // reduce max buffer length as it might be too high. we do this to avoid loop flushing ...\n              _config.maxMaxBufferLength /= 2;\n              logger[\"logger\"].warn(\"AudioStreamController: reduce max buffer length to \" + _config.maxMaxBufferLength + \"s\");\n            }\n\n            this.state = State.IDLE;\n          } else {\n            // current position is not buffered, but browser is still complaining about buffer full error\n            // this happens on IE/Edge, refer to https://github.com/video-dev/hls.js/pull/708\n            // in that case flush the whole audio buffer to recover\n            logger[\"logger\"].warn('AudioStreamController: buffer full error also media.currentTime is not buffered, flush audio buffer');\n            this.fragCurrent = null; // flush everything\n\n            this.state = State.BUFFER_FLUSHING;\n            this.hls.trigger(events[\"default\"].BUFFER_FLUSHING, {\n              startOffset: 0,\n              endOffset: Number.POSITIVE_INFINITY,\n              type: 'audio'\n            });\n          }\n        }\n\n        break;\n\n      default:\n        break;\n    }\n  };\n\n  _proto.onBufferFlushed = function onBufferFlushed() {\n    var _this3 = this;\n\n    var pendingData = this.pendingData;\n\n    if (pendingData && pendingData.length) {\n      logger[\"logger\"].log('AudioStreamController: appending pending audio data after buffer flushed');\n      pendingData.forEach(function (appendObj) {\n        _this3.hls.trigger(events[\"default\"].BUFFER_APPENDING, appendObj);\n      });\n      this.appended = true;\n      this.pendingData = [];\n      this.state = State.PARSED;\n    } else {\n      // move to IDLE once flush complete. this should trigger new fragment loading\n      this.state = State.IDLE; // reset reference to frag\n\n      this.fragPrevious = null;\n      this.tick();\n    }\n  };\n\n  audio_stream_controller_createClass(AudioStreamController, [{\n    key: \"state\",\n    set: function set(nextState) {\n      if (this.state !== nextState) {\n        var previousState = this.state;\n        this._state = nextState;\n        logger[\"logger\"].log(\"audio stream:\" + previousState + \"->\" + nextState);\n      }\n    },\n    get: function get() {\n      return this._state;\n    }\n  }]);\n\n  return AudioStreamController;\n}(base_stream_controller_BaseStreamController);\n\n/* harmony default export */ var audio_stream_controller = (audio_stream_controller_AudioStreamController);\n// CONCATENATED MODULE: ./src/utils/vttcue.js\n/**\n * Copyright 2013 vtt.js Contributors\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n/* harmony default export */ var vttcue = ((function () {\n  if (typeof window !== 'undefined' && window.VTTCue) {\n    return window.VTTCue;\n  }\n\n  var autoKeyword = 'auto';\n  var directionSetting = {\n    '': true,\n    lr: true,\n    rl: true\n  };\n  var alignSetting = {\n    start: true,\n    middle: true,\n    end: true,\n    left: true,\n    right: true\n  };\n\n  function findDirectionSetting(value) {\n    if (typeof value !== 'string') {\n      return false;\n    }\n\n    var dir = directionSetting[value.toLowerCase()];\n    return dir ? value.toLowerCase() : false;\n  }\n\n  function findAlignSetting(value) {\n    if (typeof value !== 'string') {\n      return false;\n    }\n\n    var align = alignSetting[value.toLowerCase()];\n    return align ? value.toLowerCase() : false;\n  }\n\n  function extend(obj) {\n    var i = 1;\n\n    for (; i < arguments.length; i++) {\n      var cobj = arguments[i];\n\n      for (var p in cobj) {\n        obj[p] = cobj[p];\n      }\n    }\n\n    return obj;\n  }\n\n  function VTTCue(startTime, endTime, text) {\n    var cue = this;\n    var baseObj = {};\n    baseObj.enumerable = true;\n    /**\n     * Shim implementation specific properties. These properties are not in\n     * the spec.\n     */\n    // Lets us know when the VTTCue's data has changed in such a way that we need\n    // to recompute its display state. This lets us compute its display state\n    // lazily.\n\n    cue.hasBeenReset = false;\n    /**\n     * VTTCue and TextTrackCue properties\n     * http://dev.w3.org/html5/webvtt/#vttcue-interface\n     */\n\n    var _id = '';\n    var _pauseOnExit = false;\n    var _startTime = startTime;\n    var _endTime = endTime;\n    var _text = text;\n    var _region = null;\n    var _vertical = '';\n    var _snapToLines = true;\n    var _line = 'auto';\n    var _lineAlign = 'start';\n    var _position = 50;\n    var _positionAlign = 'middle';\n    var _size = 50;\n    var _align = 'middle';\n    Object.defineProperty(cue, 'id', extend({}, baseObj, {\n      get: function get() {\n        return _id;\n      },\n      set: function set(value) {\n        _id = '' + value;\n      }\n    }));\n    Object.defineProperty(cue, 'pauseOnExit', extend({}, baseObj, {\n      get: function get() {\n        return _pauseOnExit;\n      },\n      set: function set(value) {\n        _pauseOnExit = !!value;\n      }\n    }));\n    Object.defineProperty(cue, 'startTime', extend({}, baseObj, {\n      get: function get() {\n        return _startTime;\n      },\n      set: function set(value) {\n        if (typeof value !== 'number') {\n          throw new TypeError('Start time must be set to a number.');\n        }\n\n        _startTime = value;\n        this.hasBeenReset = true;\n      }\n    }));\n    Object.defineProperty(cue, 'endTime', extend({}, baseObj, {\n      get: function get() {\n        return _endTime;\n      },\n      set: function set(value) {\n        if (typeof value !== 'number') {\n          throw new TypeError('End time must be set to a number.');\n        }\n\n        _endTime = value;\n        this.hasBeenReset = true;\n      }\n    }));\n    Object.defineProperty(cue, 'text', extend({}, baseObj, {\n      get: function get() {\n        return _text;\n      },\n      set: function set(value) {\n        _text = '' + value;\n        this.hasBeenReset = true;\n      }\n    }));\n    Object.defineProperty(cue, 'region', extend({}, baseObj, {\n      get: function get() {\n        return _region;\n      },\n      set: function set(value) {\n        _region = value;\n        this.hasBeenReset = true;\n      }\n    }));\n    Object.defineProperty(cue, 'vertical', extend({}, baseObj, {\n      get: function get() {\n        return _vertical;\n      },\n      set: function set(value) {\n        var setting = findDirectionSetting(value); // Have to check for false because the setting an be an empty string.\n\n        if (setting === false) {\n          throw new SyntaxError('An invalid or illegal string was specified.');\n        }\n\n        _vertical = setting;\n        this.hasBeenReset = true;\n      }\n    }));\n    Object.defineProperty(cue, 'snapToLines', extend({}, baseObj, {\n      get: function get() {\n        return _snapToLines;\n      },\n      set: function set(value) {\n        _snapToLines = !!value;\n        this.hasBeenReset = true;\n      }\n    }));\n    Object.defineProperty(cue, 'line', extend({}, baseObj, {\n      get: function get() {\n        return _line;\n      },\n      set: function set(value) {\n        if (typeof value !== 'number' && value !== autoKeyword) {\n          throw new SyntaxError('An invalid number or illegal string was specified.');\n        }\n\n        _line = value;\n        this.hasBeenReset = true;\n      }\n    }));\n    Object.defineProperty(cue, 'lineAlign', extend({}, baseObj, {\n      get: function get() {\n        return _lineAlign;\n      },\n      set: function set(value) {\n        var setting = findAlignSetting(value);\n\n        if (!setting) {\n          throw new SyntaxError('An invalid or illegal string was specified.');\n        }\n\n        _lineAlign = setting;\n        this.hasBeenReset = true;\n      }\n    }));\n    Object.defineProperty(cue, 'position', extend({}, baseObj, {\n      get: function get() {\n        return _position;\n      },\n      set: function set(value) {\n        if (value < 0 || value > 100) {\n          throw new Error('Position must be between 0 and 100.');\n        }\n\n        _position = value;\n        this.hasBeenReset = true;\n      }\n    }));\n    Object.defineProperty(cue, 'positionAlign', extend({}, baseObj, {\n      get: function get() {\n        return _positionAlign;\n      },\n      set: function set(value) {\n        var setting = findAlignSetting(value);\n\n        if (!setting) {\n          throw new SyntaxError('An invalid or illegal string was specified.');\n        }\n\n        _positionAlign = setting;\n        this.hasBeenReset = true;\n      }\n    }));\n    Object.defineProperty(cue, 'size', extend({}, baseObj, {\n      get: function get() {\n        return _size;\n      },\n      set: function set(value) {\n        if (value < 0 || value > 100) {\n          throw new Error('Size must be between 0 and 100.');\n        }\n\n        _size = value;\n        this.hasBeenReset = true;\n      }\n    }));\n    Object.defineProperty(cue, 'align', extend({}, baseObj, {\n      get: function get() {\n        return _align;\n      },\n      set: function set(value) {\n        var setting = findAlignSetting(value);\n\n        if (!setting) {\n          throw new SyntaxError('An invalid or illegal string was specified.');\n        }\n\n        _align = setting;\n        this.hasBeenReset = true;\n      }\n    }));\n    /**\n     * Other <track> spec defined properties\n     */\n    // http://www.whatwg.org/specs/web-apps/current-work/multipage/the-video-element.html#text-track-cue-display-state\n\n    cue.displayState = void 0;\n  }\n  /**\n   * VTTCue methods\n   */\n\n\n  VTTCue.prototype.getCueAsHTML = function () {\n    // Assume WebVTT.convertCueToDOMTree is on the global.\n    var WebVTT = window.WebVTT;\n    return WebVTT.convertCueToDOMTree(window, this.text);\n  };\n\n  return VTTCue;\n})());\n// CONCATENATED MODULE: ./src/utils/vttparser.js\n/*\n * Source: https://github.com/mozilla/vtt.js/blob/master/dist/vtt.js#L1716\n */\n\n\nvar StringDecoder = function StringDecoder() {\n  return {\n    decode: function decode(data) {\n      if (!data) {\n        return '';\n      }\n\n      if (typeof data !== 'string') {\n        throw new Error('Error - expected string data.');\n      }\n\n      return decodeURIComponent(encodeURIComponent(data));\n    }\n  };\n};\n\nfunction VTTParser() {\n  this.window = window;\n  this.state = 'INITIAL';\n  this.buffer = '';\n  this.decoder = new StringDecoder();\n  this.regionList = [];\n} // Try to parse input as a time stamp.\n\n\nfunction parseTimeStamp(input) {\n  function computeSeconds(h, m, s, f) {\n    return (h | 0) * 3600 + (m | 0) * 60 + (s | 0) + (f | 0) / 1000;\n  }\n\n  var m = input.match(/^(\\d+):(\\d{2})(:\\d{2})?\\.(\\d{3})/);\n\n  if (!m) {\n    return null;\n  }\n\n  if (m[3]) {\n    // Timestamp takes the form of [hours]:[minutes]:[seconds].[milliseconds]\n    return computeSeconds(m[1], m[2], m[3].replace(':', ''), m[4]);\n  } else if (m[1] > 59) {\n    // Timestamp takes the form of [hours]:[minutes].[milliseconds]\n    // First position is hours as it's over 59.\n    return computeSeconds(m[1], m[2], 0, m[4]);\n  } else {\n    // Timestamp takes the form of [minutes]:[seconds].[milliseconds]\n    return computeSeconds(0, m[1], m[2], m[4]);\n  }\n} // A settings object holds key/value pairs and will ignore anything but the first\n// assignment to a specific key.\n\n\nfunction Settings() {\n  this.values = Object.create(null);\n}\n\nSettings.prototype = {\n  // Only accept the first assignment to any key.\n  set: function set(k, v) {\n    if (!this.get(k) && v !== '') {\n      this.values[k] = v;\n    }\n  },\n  // Return the value for a key, or a default value.\n  // If 'defaultKey' is passed then 'dflt' is assumed to be an object with\n  // a number of possible default values as properties where 'defaultKey' is\n  // the key of the property that will be chosen; otherwise it's assumed to be\n  // a single value.\n  get: function get(k, dflt, defaultKey) {\n    if (defaultKey) {\n      return this.has(k) ? this.values[k] : dflt[defaultKey];\n    }\n\n    return this.has(k) ? this.values[k] : dflt;\n  },\n  // Check whether we have a value for a key.\n  has: function has(k) {\n    return k in this.values;\n  },\n  // Accept a setting if its one of the given alternatives.\n  alt: function alt(k, v, a) {\n    for (var n = 0; n < a.length; ++n) {\n      if (v === a[n]) {\n        this.set(k, v);\n        break;\n      }\n    }\n  },\n  // Accept a setting if its a valid (signed) integer.\n  integer: function integer(k, v) {\n    if (/^-?\\d+$/.test(v)) {\n      // integer\n      this.set(k, parseInt(v, 10));\n    }\n  },\n  // Accept a setting if its a valid percentage.\n  percent: function percent(k, v) {\n    var m;\n\n    if (m = v.match(/^([\\d]{1,3})(\\.[\\d]*)?%$/)) {\n      v = parseFloat(v);\n\n      if (v >= 0 && v <= 100) {\n        this.set(k, v);\n        return true;\n      }\n    }\n\n    return false;\n  }\n}; // Helper function to parse input into groups separated by 'groupDelim', and\n// interprete each group as a key/value pair separated by 'keyValueDelim'.\n\nfunction parseOptions(input, callback, keyValueDelim, groupDelim) {\n  var groups = groupDelim ? input.split(groupDelim) : [input];\n\n  for (var i in groups) {\n    if (typeof groups[i] !== 'string') {\n      continue;\n    }\n\n    var kv = groups[i].split(keyValueDelim);\n\n    if (kv.length !== 2) {\n      continue;\n    }\n\n    var k = kv[0];\n    var v = kv[1];\n    callback(k, v);\n  }\n}\n\nvar defaults = new vttcue(0, 0, 0); // 'middle' was changed to 'center' in the spec: https://github.com/w3c/webvtt/pull/244\n//  Safari doesn't yet support this change, but FF and Chrome do.\n\nvar center = defaults.align === 'middle' ? 'middle' : 'center';\n\nfunction parseCue(input, cue, regionList) {\n  // Remember the original input if we need to throw an error.\n  var oInput = input; // 4.1 WebVTT timestamp\n\n  function consumeTimeStamp() {\n    var ts = parseTimeStamp(input);\n\n    if (ts === null) {\n      throw new Error('Malformed timestamp: ' + oInput);\n    } // Remove time stamp from input.\n\n\n    input = input.replace(/^[^\\sa-zA-Z-]+/, '');\n    return ts;\n  } // 4.4.2 WebVTT cue settings\n\n\n  function consumeCueSettings(input, cue) {\n    var settings = new Settings();\n    parseOptions(input, function (k, v) {\n      switch (k) {\n        case 'region':\n          // Find the last region we parsed with the same region id.\n          for (var i = regionList.length - 1; i >= 0; i--) {\n            if (regionList[i].id === v) {\n              settings.set(k, regionList[i].region);\n              break;\n            }\n          }\n\n          break;\n\n        case 'vertical':\n          settings.alt(k, v, ['rl', 'lr']);\n          break;\n\n        case 'line':\n          var vals = v.split(','),\n              vals0 = vals[0];\n          settings.integer(k, vals0);\n\n          if (settings.percent(k, vals0)) {\n            settings.set('snapToLines', false);\n          }\n\n          settings.alt(k, vals0, ['auto']);\n\n          if (vals.length === 2) {\n            settings.alt('lineAlign', vals[1], ['start', center, 'end']);\n          }\n\n          break;\n\n        case 'position':\n          vals = v.split(',');\n          settings.percent(k, vals[0]);\n\n          if (vals.length === 2) {\n            settings.alt('positionAlign', vals[1], ['start', center, 'end', 'line-left', 'line-right', 'auto']);\n          }\n\n          break;\n\n        case 'size':\n          settings.percent(k, v);\n          break;\n\n        case 'align':\n          settings.alt(k, v, ['start', center, 'end', 'left', 'right']);\n          break;\n      }\n    }, /:/, /\\s/); // Apply default values for any missing fields.\n\n    cue.region = settings.get('region', null);\n    cue.vertical = settings.get('vertical', '');\n    var line = settings.get('line', 'auto');\n\n    if (line === 'auto' && defaults.line === -1) {\n      // set numeric line number for Safari\n      line = -1;\n    }\n\n    cue.line = line;\n    cue.lineAlign = settings.get('lineAlign', 'start');\n    cue.snapToLines = settings.get('snapToLines', true);\n    cue.size = settings.get('size', 100);\n    cue.align = settings.get('align', center);\n    var position = settings.get('position', 'auto');\n\n    if (position === 'auto' && defaults.position === 50) {\n      // set numeric position for Safari\n      position = cue.align === 'start' || cue.align === 'left' ? 0 : cue.align === 'end' || cue.align === 'right' ? 100 : 50;\n    }\n\n    cue.position = position;\n  }\n\n  function skipWhitespace() {\n    input = input.replace(/^\\s+/, '');\n  } // 4.1 WebVTT cue timings.\n\n\n  skipWhitespace();\n  cue.startTime = consumeTimeStamp(); // (1) collect cue start time\n\n  skipWhitespace();\n\n  if (input.substr(0, 3) !== '-->') {\n    // (3) next characters must match '-->'\n    throw new Error('Malformed time stamp (time stamps must be separated by \\'-->\\'): ' + oInput);\n  }\n\n  input = input.substr(3);\n  skipWhitespace();\n  cue.endTime = consumeTimeStamp(); // (5) collect cue end time\n  // 4.1 WebVTT cue settings list.\n\n  skipWhitespace();\n  consumeCueSettings(input, cue);\n}\n\nfunction fixLineBreaks(input) {\n  return input.replace(/<br(?: \\/)?>/gi, '\\n');\n}\n\nVTTParser.prototype = {\n  parse: function parse(data) {\n    var self = this; // If there is no data then we won't decode it, but will just try to parse\n    // whatever is in buffer already. This may occur in circumstances, for\n    // example when flush() is called.\n\n    if (data) {\n      // Try to decode the data that we received.\n      self.buffer += self.decoder.decode(data, {\n        stream: true\n      });\n    }\n\n    function collectNextLine() {\n      var buffer = self.buffer;\n      var pos = 0;\n      buffer = fixLineBreaks(buffer);\n\n      while (pos < buffer.length && buffer[pos] !== '\\r' && buffer[pos] !== '\\n') {\n        ++pos;\n      }\n\n      var line = buffer.substr(0, pos); // Advance the buffer early in case we fail below.\n\n      if (buffer[pos] === '\\r') {\n        ++pos;\n      }\n\n      if (buffer[pos] === '\\n') {\n        ++pos;\n      }\n\n      self.buffer = buffer.substr(pos);\n      return line;\n    } // 3.2 WebVTT metadata header syntax\n\n\n    function parseHeader(input) {\n      parseOptions(input, function (k, v) {\n        switch (k) {\n          case 'Region':\n            // 3.3 WebVTT region metadata header syntax\n            // console.log('parse region', v);\n            // parseRegion(v);\n            break;\n        }\n      }, /:/);\n    } // 5.1 WebVTT file parsing.\n\n\n    try {\n      var line;\n\n      if (self.state === 'INITIAL') {\n        // We can't start parsing until we have the first line.\n        if (!/\\r\\n|\\n/.test(self.buffer)) {\n          return this;\n        }\n\n        line = collectNextLine(); // strip of UTF-8 BOM if any\n        // https://en.wikipedia.org/wiki/Byte_order_mark#UTF-8\n\n        var m = line.match(/^()?WEBVTT([ \\t].*)?$/);\n\n        if (!m || !m[0]) {\n          throw new Error('Malformed WebVTT signature.');\n        }\n\n        self.state = 'HEADER';\n      }\n\n      var alreadyCollectedLine = false;\n\n      while (self.buffer) {\n        // We can't parse a line until we have the full line.\n        if (!/\\r\\n|\\n/.test(self.buffer)) {\n          return this;\n        }\n\n        if (!alreadyCollectedLine) {\n          line = collectNextLine();\n        } else {\n          alreadyCollectedLine = false;\n        }\n\n        switch (self.state) {\n          case 'HEADER':\n            // 13-18 - Allow a header (metadata) under the WEBVTT line.\n            if (/:/.test(line)) {\n              parseHeader(line);\n            } else if (!line) {\n              // An empty line terminates the header and starts the body (cues).\n              self.state = 'ID';\n            }\n\n            continue;\n\n          case 'NOTE':\n            // Ignore NOTE blocks.\n            if (!line) {\n              self.state = 'ID';\n            }\n\n            continue;\n\n          case 'ID':\n            // Check for the start of NOTE blocks.\n            if (/^NOTE($|[ \\t])/.test(line)) {\n              self.state = 'NOTE';\n              break;\n            } // 19-29 - Allow any number of line terminators, then initialize new cue values.\n\n\n            if (!line) {\n              continue;\n            }\n\n            self.cue = new vttcue(0, 0, '');\n            self.state = 'CUE'; // 30-39 - Check if self line contains an optional identifier or timing data.\n\n            if (line.indexOf('-->') === -1) {\n              self.cue.id = line;\n              continue;\n            }\n\n          // Process line as start of a cue.\n\n          /* falls through */\n\n          case 'CUE':\n            // 40 - Collect cue timings and settings.\n            try {\n              parseCue(line, self.cue, self.regionList);\n            } catch (e) {\n              // In case of an error ignore rest of the cue.\n              self.cue = null;\n              self.state = 'BADCUE';\n              continue;\n            }\n\n            self.state = 'CUETEXT';\n            continue;\n\n          case 'CUETEXT':\n            var hasSubstring = line.indexOf('-->') !== -1; // 34 - If we have an empty line then report the cue.\n            // 35 - If we have the special substring '-->' then report the cue,\n            // but do not collect the line as we need to process the current\n            // one as a new cue.\n\n            if (!line || hasSubstring && (alreadyCollectedLine = true)) {\n              // We are done parsing self cue.\n              if (self.oncue) {\n                self.oncue(self.cue);\n              }\n\n              self.cue = null;\n              self.state = 'ID';\n              continue;\n            }\n\n            if (self.cue.text) {\n              self.cue.text += '\\n';\n            }\n\n            self.cue.text += line;\n            continue;\n\n          case 'BADCUE':\n            // BADCUE\n            // 54-62 - Collect and discard the remaining cue.\n            if (!line) {\n              self.state = 'ID';\n            }\n\n            continue;\n        }\n      }\n    } catch (e) {\n      // If we are currently parsing a cue, report what we have.\n      if (self.state === 'CUETEXT' && self.cue && self.oncue) {\n        self.oncue(self.cue);\n      }\n\n      self.cue = null; // Enter BADWEBVTT state if header was not parsed correctly otherwise\n      // another exception occurred so enter BADCUE state.\n\n      self.state = self.state === 'INITIAL' ? 'BADWEBVTT' : 'BADCUE';\n    }\n\n    return this;\n  },\n  flush: function flush() {\n    var self = this;\n\n    try {\n      // Finish decoding the stream.\n      self.buffer += self.decoder.decode(); // Synthesize the end of the current cue or region.\n\n      if (self.cue || self.state === 'HEADER') {\n        self.buffer += '\\n\\n';\n        self.parse();\n      } // If we've flushed, parsed, and we're still on the INITIAL state then\n      // that means we don't have enough of the stream to parse the first\n      // line.\n\n\n      if (self.state === 'INITIAL') {\n        throw new Error('Malformed WebVTT signature.');\n      }\n    } catch (e) {\n      throw e;\n    }\n\n    if (self.onflush) {\n      self.onflush();\n    }\n\n    return this;\n  }\n};\n\n/* harmony default export */ var vttparser = (VTTParser);\n// CONCATENATED MODULE: ./src/utils/cues.ts\n\nfunction newCue(track, startTime, endTime, captionScreen) {\n  var result = [];\n  var row; // the type data states this is VTTCue, but it can potentially be a TextTrackCue on old browsers\n\n  var cue;\n  var indenting;\n  var indent;\n  var text;\n  var VTTCue = window.VTTCue || TextTrackCue;\n\n  for (var r = 0; r < captionScreen.rows.length; r++) {\n    row = captionScreen.rows[r];\n    indenting = true;\n    indent = 0;\n    text = '';\n\n    if (!row.isEmpty()) {\n      for (var c = 0; c < row.chars.length; c++) {\n        if (row.chars[c].uchar.match(/\\s/) && indenting) {\n          indent++;\n        } else {\n          text += row.chars[c].uchar;\n          indenting = false;\n        }\n      } // To be used for cleaning-up orphaned roll-up captions\n\n\n      row.cueStartTime = startTime; // Give a slight bump to the endTime if it's equal to startTime to avoid a SyntaxError in IE\n\n      if (startTime === endTime) {\n        endTime += 0.0001;\n      }\n\n      cue = new VTTCue(startTime, endTime, fixLineBreaks(text.trim()));\n\n      if (indent >= 16) {\n        indent--;\n      } else {\n        indent++;\n      } // VTTCue.line get's flakey when using controls, so let's now include line 13&14\n      // also, drop line 1 since it's to close to the top\n\n\n      if (navigator.userAgent.match(/Firefox\\//)) {\n        cue.line = r + 1;\n      } else {\n        cue.line = r > 7 ? r - 2 : r + 1;\n      }\n\n      cue.align = 'left'; // Clamp the position between 0 and 100 - if out of these bounds, Firefox throws an exception and captions break\n\n      cue.position = Math.max(0, Math.min(100, 100 * (indent / 32)));\n      result.push(cue);\n\n      if (track) {\n        track.addCue(cue);\n      }\n    }\n  }\n\n  return result;\n}\n// CONCATENATED MODULE: ./src/utils/cea-608-parser.ts\n\n/**\n *\n * This code was ported from the dash.js project at:\n *   https://github.com/Dash-Industry-Forum/dash.js/blob/development/externals/cea608-parser.js\n *   https://github.com/Dash-Industry-Forum/dash.js/commit/8269b26a761e0853bb21d78780ed945144ecdd4d#diff-71bc295a2d6b6b7093a1d3290d53a4b2\n *\n * The original copyright appears below:\n *\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2015-2016, DASH Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  1. Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  2. Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n */\n\n/**\n *  Exceptions from regular ASCII. CodePoints are mapped to UTF-16 codes\n */\n\nvar specialCea608CharsCodes = {\n  0x2a: 0xe1,\n  // lowercase a, acute accent\n  0x5c: 0xe9,\n  // lowercase e, acute accent\n  0x5e: 0xed,\n  // lowercase i, acute accent\n  0x5f: 0xf3,\n  // lowercase o, acute accent\n  0x60: 0xfa,\n  // lowercase u, acute accent\n  0x7b: 0xe7,\n  // lowercase c with cedilla\n  0x7c: 0xf7,\n  // division symbol\n  0x7d: 0xd1,\n  // uppercase N tilde\n  0x7e: 0xf1,\n  // lowercase n tilde\n  0x7f: 0x2588,\n  // Full block\n  // THIS BLOCK INCLUDES THE 16 EXTENDED (TWO-BYTE) LINE 21 CHARACTERS\n  // THAT COME FROM HI BYTE=0x11 AND LOW BETWEEN 0x30 AND 0x3F\n  // THIS MEANS THAT \\x50 MUST BE ADDED TO THE VALUES\n  0x80: 0xae,\n  // Registered symbol (R)\n  0x81: 0xb0,\n  // degree sign\n  0x82: 0xbd,\n  // 1/2 symbol\n  0x83: 0xbf,\n  // Inverted (open) question mark\n  0x84: 0x2122,\n  // Trademark symbol (TM)\n  0x85: 0xa2,\n  // Cents symbol\n  0x86: 0xa3,\n  // Pounds sterling\n  0x87: 0x266a,\n  // Music 8'th note\n  0x88: 0xe0,\n  // lowercase a, grave accent\n  0x89: 0x20,\n  // transparent space (regular)\n  0x8a: 0xe8,\n  // lowercase e, grave accent\n  0x8b: 0xe2,\n  // lowercase a, circumflex accent\n  0x8c: 0xea,\n  // lowercase e, circumflex accent\n  0x8d: 0xee,\n  // lowercase i, circumflex accent\n  0x8e: 0xf4,\n  // lowercase o, circumflex accent\n  0x8f: 0xfb,\n  // lowercase u, circumflex accent\n  // THIS BLOCK INCLUDES THE 32 EXTENDED (TWO-BYTE) LINE 21 CHARACTERS\n  // THAT COME FROM HI BYTE=0x12 AND LOW BETWEEN 0x20 AND 0x3F\n  0x90: 0xc1,\n  // capital letter A with acute\n  0x91: 0xc9,\n  // capital letter E with acute\n  0x92: 0xd3,\n  // capital letter O with acute\n  0x93: 0xda,\n  // capital letter U with acute\n  0x94: 0xdc,\n  // capital letter U with diaresis\n  0x95: 0xfc,\n  // lowercase letter U with diaeresis\n  0x96: 0x2018,\n  // opening single quote\n  0x97: 0xa1,\n  // inverted exclamation mark\n  0x98: 0x2a,\n  // asterisk\n  0x99: 0x2019,\n  // closing single quote\n  0x9a: 0x2501,\n  // box drawings heavy horizontal\n  0x9b: 0xa9,\n  // copyright sign\n  0x9c: 0x2120,\n  // Service mark\n  0x9d: 0x2022,\n  // (round) bullet\n  0x9e: 0x201c,\n  // Left double quotation mark\n  0x9f: 0x201d,\n  // Right double quotation mark\n  0xa0: 0xc0,\n  // uppercase A, grave accent\n  0xa1: 0xc2,\n  // uppercase A, circumflex\n  0xa2: 0xc7,\n  // uppercase C with cedilla\n  0xa3: 0xc8,\n  // uppercase E, grave accent\n  0xa4: 0xca,\n  // uppercase E, circumflex\n  0xa5: 0xcb,\n  // capital letter E with diaresis\n  0xa6: 0xeb,\n  // lowercase letter e with diaresis\n  0xa7: 0xce,\n  // uppercase I, circumflex\n  0xa8: 0xcf,\n  // uppercase I, with diaresis\n  0xa9: 0xef,\n  // lowercase i, with diaresis\n  0xaa: 0xd4,\n  // uppercase O, circumflex\n  0xab: 0xd9,\n  // uppercase U, grave accent\n  0xac: 0xf9,\n  // lowercase u, grave accent\n  0xad: 0xdb,\n  // uppercase U, circumflex\n  0xae: 0xab,\n  // left-pointing double angle quotation mark\n  0xaf: 0xbb,\n  // right-pointing double angle quotation mark\n  // THIS BLOCK INCLUDES THE 32 EXTENDED (TWO-BYTE) LINE 21 CHARACTERS\n  // THAT COME FROM HI BYTE=0x13 AND LOW BETWEEN 0x20 AND 0x3F\n  0xb0: 0xc3,\n  // Uppercase A, tilde\n  0xb1: 0xe3,\n  // Lowercase a, tilde\n  0xb2: 0xcd,\n  // Uppercase I, acute accent\n  0xb3: 0xcc,\n  // Uppercase I, grave accent\n  0xb4: 0xec,\n  // Lowercase i, grave accent\n  0xb5: 0xd2,\n  // Uppercase O, grave accent\n  0xb6: 0xf2,\n  // Lowercase o, grave accent\n  0xb7: 0xd5,\n  // Uppercase O, tilde\n  0xb8: 0xf5,\n  // Lowercase o, tilde\n  0xb9: 0x7b,\n  // Open curly brace\n  0xba: 0x7d,\n  // Closing curly brace\n  0xbb: 0x5c,\n  // Backslash\n  0xbc: 0x5e,\n  // Caret\n  0xbd: 0x5f,\n  // Underscore\n  0xbe: 0x7c,\n  // Pipe (vertical line)\n  0xbf: 0x223c,\n  // Tilde operator\n  0xc0: 0xc4,\n  // Uppercase A, umlaut\n  0xc1: 0xe4,\n  // Lowercase A, umlaut\n  0xc2: 0xd6,\n  // Uppercase O, umlaut\n  0xc3: 0xf6,\n  // Lowercase o, umlaut\n  0xc4: 0xdf,\n  // Esszett (sharp S)\n  0xc5: 0xa5,\n  // Yen symbol\n  0xc6: 0xa4,\n  // Generic currency sign\n  0xc7: 0x2503,\n  // Box drawings heavy vertical\n  0xc8: 0xc5,\n  // Uppercase A, ring\n  0xc9: 0xe5,\n  // Lowercase A, ring\n  0xca: 0xd8,\n  // Uppercase O, stroke\n  0xcb: 0xf8,\n  // Lowercase o, strok\n  0xcc: 0x250f,\n  // Box drawings heavy down and right\n  0xcd: 0x2513,\n  // Box drawings heavy down and left\n  0xce: 0x2517,\n  // Box drawings heavy up and right\n  0xcf: 0x251b // Box drawings heavy up and left\n\n};\n/**\n * Utils\n */\n\nvar getCharForByte = function getCharForByte(_byte) {\n  var charCode = _byte;\n\n  if (specialCea608CharsCodes.hasOwnProperty(_byte)) {\n    charCode = specialCea608CharsCodes[_byte];\n  }\n\n  return String.fromCharCode(charCode);\n};\n\nvar NR_ROWS = 15;\nvar NR_COLS = 100; // Tables to look up row from PAC data\n\nvar rowsLowCh1 = {\n  0x11: 1,\n  0x12: 3,\n  0x15: 5,\n  0x16: 7,\n  0x17: 9,\n  0x10: 11,\n  0x13: 12,\n  0x14: 14\n};\nvar rowsHighCh1 = {\n  0x11: 2,\n  0x12: 4,\n  0x15: 6,\n  0x16: 8,\n  0x17: 10,\n  0x13: 13,\n  0x14: 15\n};\nvar rowsLowCh2 = {\n  0x19: 1,\n  0x1A: 3,\n  0x1D: 5,\n  0x1E: 7,\n  0x1F: 9,\n  0x18: 11,\n  0x1B: 12,\n  0x1C: 14\n};\nvar rowsHighCh2 = {\n  0x19: 2,\n  0x1A: 4,\n  0x1D: 6,\n  0x1E: 8,\n  0x1F: 10,\n  0x1B: 13,\n  0x1C: 15\n};\nvar backgroundColors = ['white', 'green', 'blue', 'cyan', 'red', 'yellow', 'magenta', 'black', 'transparent'];\nvar VerboseLevel;\n\n(function (VerboseLevel) {\n  VerboseLevel[VerboseLevel[\"ERROR\"] = 0] = \"ERROR\";\n  VerboseLevel[VerboseLevel[\"TEXT\"] = 1] = \"TEXT\";\n  VerboseLevel[VerboseLevel[\"WARNING\"] = 2] = \"WARNING\";\n  VerboseLevel[VerboseLevel[\"INFO\"] = 2] = \"INFO\";\n  VerboseLevel[VerboseLevel[\"DEBUG\"] = 3] = \"DEBUG\";\n  VerboseLevel[VerboseLevel[\"DATA\"] = 3] = \"DATA\";\n})(VerboseLevel || (VerboseLevel = {}));\n\nvar cea_608_parser_CaptionsLogger = /*#__PURE__*/function () {\n  function CaptionsLogger() {\n    this.time = null;\n    this.verboseLevel = VerboseLevel.ERROR;\n  }\n\n  var _proto = CaptionsLogger.prototype;\n\n  _proto.log = function log(severity, msg) {\n    if (this.verboseLevel >= severity) {\n      logger[\"logger\"].log(this.time + \" [\" + severity + \"] \" + msg);\n    }\n  };\n\n  return CaptionsLogger;\n}();\n\nvar numArrayToHexArray = function numArrayToHexArray(numArray) {\n  var hexArray = [];\n\n  for (var j = 0; j < numArray.length; j++) {\n    hexArray.push(numArray[j].toString(16));\n  }\n\n  return hexArray;\n};\n\nvar PenState = /*#__PURE__*/function () {\n  function PenState(foreground, underline, italics, background, flash) {\n    this.foreground = void 0;\n    this.underline = void 0;\n    this.italics = void 0;\n    this.background = void 0;\n    this.flash = void 0;\n    this.foreground = foreground || 'white';\n    this.underline = underline || false;\n    this.italics = italics || false;\n    this.background = background || 'black';\n    this.flash = flash || false;\n  }\n\n  var _proto2 = PenState.prototype;\n\n  _proto2.reset = function reset() {\n    this.foreground = 'white';\n    this.underline = false;\n    this.italics = false;\n    this.background = 'black';\n    this.flash = false;\n  };\n\n  _proto2.setStyles = function setStyles(styles) {\n    var attribs = ['foreground', 'underline', 'italics', 'background', 'flash'];\n\n    for (var i = 0; i < attribs.length; i++) {\n      var style = attribs[i];\n\n      if (styles.hasOwnProperty(style)) {\n        this[style] = styles[style];\n      }\n    }\n  };\n\n  _proto2.isDefault = function isDefault() {\n    return this.foreground === 'white' && !this.underline && !this.italics && this.background === 'black' && !this.flash;\n  };\n\n  _proto2.equals = function equals(other) {\n    return this.foreground === other.foreground && this.underline === other.underline && this.italics === other.italics && this.background === other.background && this.flash === other.flash;\n  };\n\n  _proto2.copy = function copy(newPenState) {\n    this.foreground = newPenState.foreground;\n    this.underline = newPenState.underline;\n    this.italics = newPenState.italics;\n    this.background = newPenState.background;\n    this.flash = newPenState.flash;\n  };\n\n  _proto2.toString = function toString() {\n    return 'color=' + this.foreground + ', underline=' + this.underline + ', italics=' + this.italics + ', background=' + this.background + ', flash=' + this.flash;\n  };\n\n  return PenState;\n}();\n/**\n * Unicode character with styling and background.\n * @constructor\n */\n\n\nvar StyledUnicodeChar = /*#__PURE__*/function () {\n  function StyledUnicodeChar(uchar, foreground, underline, italics, background, flash) {\n    this.uchar = void 0;\n    this.penState = void 0;\n    this.uchar = uchar || ' '; // unicode character\n\n    this.penState = new PenState(foreground, underline, italics, background, flash);\n  }\n\n  var _proto3 = StyledUnicodeChar.prototype;\n\n  _proto3.reset = function reset() {\n    this.uchar = ' ';\n    this.penState.reset();\n  };\n\n  _proto3.setChar = function setChar(uchar, newPenState) {\n    this.uchar = uchar;\n    this.penState.copy(newPenState);\n  };\n\n  _proto3.setPenState = function setPenState(newPenState) {\n    this.penState.copy(newPenState);\n  };\n\n  _proto3.equals = function equals(other) {\n    return this.uchar === other.uchar && this.penState.equals(other.penState);\n  };\n\n  _proto3.copy = function copy(newChar) {\n    this.uchar = newChar.uchar;\n    this.penState.copy(newChar.penState);\n  };\n\n  _proto3.isEmpty = function isEmpty() {\n    return this.uchar === ' ' && this.penState.isDefault();\n  };\n\n  return StyledUnicodeChar;\n}();\n/**\n * CEA-608 row consisting of NR_COLS instances of StyledUnicodeChar.\n * @constructor\n */\n\n\nvar Row = /*#__PURE__*/function () {\n  function Row(logger) {\n    this.chars = void 0;\n    this.pos = void 0;\n    this.currPenState = void 0;\n    this.cueStartTime = void 0;\n    this.logger = void 0;\n    this.chars = [];\n\n    for (var i = 0; i < NR_COLS; i++) {\n      this.chars.push(new StyledUnicodeChar());\n    }\n\n    this.logger = logger;\n    this.pos = 0;\n    this.currPenState = new PenState();\n  }\n\n  var _proto4 = Row.prototype;\n\n  _proto4.equals = function equals(other) {\n    var equal = true;\n\n    for (var i = 0; i < NR_COLS; i++) {\n      if (!this.chars[i].equals(other.chars[i])) {\n        equal = false;\n        break;\n      }\n    }\n\n    return equal;\n  };\n\n  _proto4.copy = function copy(other) {\n    for (var i = 0; i < NR_COLS; i++) {\n      this.chars[i].copy(other.chars[i]);\n    }\n  };\n\n  _proto4.isEmpty = function isEmpty() {\n    var empty = true;\n\n    for (var i = 0; i < NR_COLS; i++) {\n      if (!this.chars[i].isEmpty()) {\n        empty = false;\n        break;\n      }\n    }\n\n    return empty;\n  }\n  /**\n   *  Set the cursor to a valid column.\n   */\n  ;\n\n  _proto4.setCursor = function setCursor(absPos) {\n    if (this.pos !== absPos) {\n      this.pos = absPos;\n    }\n\n    if (this.pos < 0) {\n      this.logger.log(VerboseLevel.DEBUG, 'Negative cursor position ' + this.pos);\n      this.pos = 0;\n    } else if (this.pos > NR_COLS) {\n      this.logger.log(VerboseLevel.DEBUG, 'Too large cursor position ' + this.pos);\n      this.pos = NR_COLS;\n    }\n  }\n  /**\n   * Move the cursor relative to current position.\n   */\n  ;\n\n  _proto4.moveCursor = function moveCursor(relPos) {\n    var newPos = this.pos + relPos;\n\n    if (relPos > 1) {\n      for (var i = this.pos + 1; i < newPos + 1; i++) {\n        this.chars[i].setPenState(this.currPenState);\n      }\n    }\n\n    this.setCursor(newPos);\n  }\n  /**\n   * Backspace, move one step back and clear character.\n   */\n  ;\n\n  _proto4.backSpace = function backSpace() {\n    this.moveCursor(-1);\n    this.chars[this.pos].setChar(' ', this.currPenState);\n  };\n\n  _proto4.insertChar = function insertChar(_byte2) {\n    if (_byte2 >= 0x90) {\n      // Extended char\n      this.backSpace();\n    }\n\n    var _char = getCharForByte(_byte2);\n\n    if (this.pos >= NR_COLS) {\n      this.logger.log(VerboseLevel.ERROR, 'Cannot insert ' + _byte2.toString(16) + ' (' + _char + ') at position ' + this.pos + '. Skipping it!');\n      return;\n    }\n\n    this.chars[this.pos].setChar(_char, this.currPenState);\n    this.moveCursor(1);\n  };\n\n  _proto4.clearFromPos = function clearFromPos(startPos) {\n    var i;\n\n    for (i = startPos; i < NR_COLS; i++) {\n      this.chars[i].reset();\n    }\n  };\n\n  _proto4.clear = function clear() {\n    this.clearFromPos(0);\n    this.pos = 0;\n    this.currPenState.reset();\n  };\n\n  _proto4.clearToEndOfRow = function clearToEndOfRow() {\n    this.clearFromPos(this.pos);\n  };\n\n  _proto4.getTextString = function getTextString() {\n    var chars = [];\n    var empty = true;\n\n    for (var i = 0; i < NR_COLS; i++) {\n      var _char2 = this.chars[i].uchar;\n\n      if (_char2 !== ' ') {\n        empty = false;\n      }\n\n      chars.push(_char2);\n    }\n\n    if (empty) {\n      return '';\n    } else {\n      return chars.join('');\n    }\n  };\n\n  _proto4.setPenStyles = function setPenStyles(styles) {\n    this.currPenState.setStyles(styles);\n    var currChar = this.chars[this.pos];\n    currChar.setPenState(this.currPenState);\n  };\n\n  return Row;\n}();\n/**\n * Keep a CEA-608 screen of 32x15 styled characters\n * @constructor\n */\n\nvar CaptionScreen = /*#__PURE__*/function () {\n  function CaptionScreen(logger) {\n    this.rows = void 0;\n    this.currRow = void 0;\n    this.nrRollUpRows = void 0;\n    this.lastOutputScreen = void 0;\n    this.logger = void 0;\n    this.rows = [];\n\n    for (var i = 0; i < NR_ROWS; i++) {\n      this.rows.push(new Row(logger));\n    } // Note that we use zero-based numbering (0-14)\n\n\n    this.logger = logger;\n    this.currRow = NR_ROWS - 1;\n    this.nrRollUpRows = null;\n    this.lastOutputScreen = null;\n    this.reset();\n  }\n\n  var _proto5 = CaptionScreen.prototype;\n\n  _proto5.reset = function reset() {\n    for (var i = 0; i < NR_ROWS; i++) {\n      this.rows[i].clear();\n    }\n\n    this.currRow = NR_ROWS - 1;\n  };\n\n  _proto5.equals = function equals(other) {\n    var equal = true;\n\n    for (var i = 0; i < NR_ROWS; i++) {\n      if (!this.rows[i].equals(other.rows[i])) {\n        equal = false;\n        break;\n      }\n    }\n\n    return equal;\n  };\n\n  _proto5.copy = function copy(other) {\n    for (var i = 0; i < NR_ROWS; i++) {\n      this.rows[i].copy(other.rows[i]);\n    }\n  };\n\n  _proto5.isEmpty = function isEmpty() {\n    var empty = true;\n\n    for (var i = 0; i < NR_ROWS; i++) {\n      if (!this.rows[i].isEmpty()) {\n        empty = false;\n        break;\n      }\n    }\n\n    return empty;\n  };\n\n  _proto5.backSpace = function backSpace() {\n    var row = this.rows[this.currRow];\n    row.backSpace();\n  };\n\n  _proto5.clearToEndOfRow = function clearToEndOfRow() {\n    var row = this.rows[this.currRow];\n    row.clearToEndOfRow();\n  }\n  /**\n   * Insert a character (without styling) in the current row.\n   */\n  ;\n\n  _proto5.insertChar = function insertChar(_char3) {\n    var row = this.rows[this.currRow];\n    row.insertChar(_char3);\n  };\n\n  _proto5.setPen = function setPen(styles) {\n    var row = this.rows[this.currRow];\n    row.setPenStyles(styles);\n  };\n\n  _proto5.moveCursor = function moveCursor(relPos) {\n    var row = this.rows[this.currRow];\n    row.moveCursor(relPos);\n  };\n\n  _proto5.setCursor = function setCursor(absPos) {\n    this.logger.log(VerboseLevel.INFO, 'setCursor: ' + absPos);\n    var row = this.rows[this.currRow];\n    row.setCursor(absPos);\n  };\n\n  _proto5.setPAC = function setPAC(pacData) {\n    this.logger.log(VerboseLevel.INFO, 'pacData = ' + JSON.stringify(pacData));\n    var newRow = pacData.row - 1;\n\n    if (this.nrRollUpRows && newRow < this.nrRollUpRows - 1) {\n      newRow = this.nrRollUpRows - 1;\n    } // Make sure this only affects Roll-up Captions by checking this.nrRollUpRows\n\n\n    if (this.nrRollUpRows && this.currRow !== newRow) {\n      // clear all rows first\n      for (var i = 0; i < NR_ROWS; i++) {\n        this.rows[i].clear();\n      } // Copy this.nrRollUpRows rows from lastOutputScreen and place it in the newRow location\n      // topRowIndex - the start of rows to copy (inclusive index)\n\n\n      var topRowIndex = this.currRow + 1 - this.nrRollUpRows; // We only copy if the last position was already shown.\n      // We use the cueStartTime value to check this.\n\n      var lastOutputScreen = this.lastOutputScreen;\n\n      if (lastOutputScreen) {\n        var prevLineTime = lastOutputScreen.rows[topRowIndex].cueStartTime;\n        var time = this.logger.time;\n\n        if (prevLineTime && time !== null && prevLineTime < time) {\n          for (var _i = 0; _i < this.nrRollUpRows; _i++) {\n            this.rows[newRow - this.nrRollUpRows + _i + 1].copy(lastOutputScreen.rows[topRowIndex + _i]);\n          }\n        }\n      }\n    }\n\n    this.currRow = newRow;\n    var row = this.rows[this.currRow];\n\n    if (pacData.indent !== null) {\n      var indent = pacData.indent;\n      var prevPos = Math.max(indent - 1, 0);\n      row.setCursor(pacData.indent);\n      pacData.color = row.chars[prevPos].penState.foreground;\n    }\n\n    var styles = {\n      foreground: pacData.color,\n      underline: pacData.underline,\n      italics: pacData.italics,\n      background: 'black',\n      flash: false\n    };\n    this.setPen(styles);\n  }\n  /**\n   * Set background/extra foreground, but first do back_space, and then insert space (backwards compatibility).\n   */\n  ;\n\n  _proto5.setBkgData = function setBkgData(bkgData) {\n    this.logger.log(VerboseLevel.INFO, 'bkgData = ' + JSON.stringify(bkgData));\n    this.backSpace();\n    this.setPen(bkgData);\n    this.insertChar(0x20); // Space\n  };\n\n  _proto5.setRollUpRows = function setRollUpRows(nrRows) {\n    this.nrRollUpRows = nrRows;\n  };\n\n  _proto5.rollUp = function rollUp() {\n    if (this.nrRollUpRows === null) {\n      this.logger.log(VerboseLevel.DEBUG, 'roll_up but nrRollUpRows not set yet');\n      return; // Not properly setup\n    }\n\n    this.logger.log(VerboseLevel.TEXT, this.getDisplayText());\n    var topRowIndex = this.currRow + 1 - this.nrRollUpRows;\n    var topRow = this.rows.splice(topRowIndex, 1)[0];\n    topRow.clear();\n    this.rows.splice(this.currRow, 0, topRow);\n    this.logger.log(VerboseLevel.INFO, 'Rolling up'); // this.logger.log(VerboseLevel.TEXT, this.get_display_text())\n  }\n  /**\n   * Get all non-empty rows with as unicode text.\n   */\n  ;\n\n  _proto5.getDisplayText = function getDisplayText(asOneRow) {\n    asOneRow = asOneRow || false;\n    var displayText = [];\n    var text = '';\n    var rowNr = -1;\n\n    for (var i = 0; i < NR_ROWS; i++) {\n      var rowText = this.rows[i].getTextString();\n\n      if (rowText) {\n        rowNr = i + 1;\n\n        if (asOneRow) {\n          displayText.push('Row ' + rowNr + ': \\'' + rowText + '\\'');\n        } else {\n          displayText.push(rowText.trim());\n        }\n      }\n    }\n\n    if (displayText.length > 0) {\n      if (asOneRow) {\n        text = '[' + displayText.join(' | ') + ']';\n      } else {\n        text = displayText.join('\\n');\n      }\n    }\n\n    return text;\n  };\n\n  _proto5.getTextAndFormat = function getTextAndFormat() {\n    return this.rows;\n  };\n\n  return CaptionScreen;\n}(); // var modes = ['MODE_ROLL-UP', 'MODE_POP-ON', 'MODE_PAINT-ON', 'MODE_TEXT'];\n\nvar Cea608Channel = /*#__PURE__*/function () {\n  function Cea608Channel(channelNumber, outputFilter, logger) {\n    this.chNr = void 0;\n    this.outputFilter = void 0;\n    this.mode = void 0;\n    this.verbose = void 0;\n    this.displayedMemory = void 0;\n    this.nonDisplayedMemory = void 0;\n    this.lastOutputScreen = void 0;\n    this.currRollUpRow = void 0;\n    this.writeScreen = void 0;\n    this.cueStartTime = void 0;\n    this.logger = void 0;\n    this.chNr = channelNumber;\n    this.outputFilter = outputFilter;\n    this.mode = null;\n    this.verbose = 0;\n    this.displayedMemory = new CaptionScreen(logger);\n    this.nonDisplayedMemory = new CaptionScreen(logger);\n    this.lastOutputScreen = new CaptionScreen(logger);\n    this.currRollUpRow = this.displayedMemory.rows[NR_ROWS - 1];\n    this.writeScreen = this.displayedMemory;\n    this.mode = null;\n    this.cueStartTime = null; // Keeps track of where a cue started.\n\n    this.logger = logger;\n  }\n\n  var _proto6 = Cea608Channel.prototype;\n\n  _proto6.reset = function reset() {\n    this.mode = null;\n    this.displayedMemory.reset();\n    this.nonDisplayedMemory.reset();\n    this.lastOutputScreen.reset();\n    this.outputFilter.reset();\n    this.currRollUpRow = this.displayedMemory.rows[NR_ROWS - 1];\n    this.writeScreen = this.displayedMemory;\n    this.mode = null;\n    this.cueStartTime = null;\n  };\n\n  _proto6.getHandler = function getHandler() {\n    return this.outputFilter;\n  };\n\n  _proto6.setHandler = function setHandler(newHandler) {\n    this.outputFilter = newHandler;\n  };\n\n  _proto6.setPAC = function setPAC(pacData) {\n    this.writeScreen.setPAC(pacData);\n  };\n\n  _proto6.setBkgData = function setBkgData(bkgData) {\n    this.writeScreen.setBkgData(bkgData);\n  };\n\n  _proto6.setMode = function setMode(newMode) {\n    if (newMode === this.mode) {\n      return;\n    }\n\n    this.mode = newMode;\n    this.logger.log(VerboseLevel.INFO, 'MODE=' + newMode);\n\n    if (this.mode === 'MODE_POP-ON') {\n      this.writeScreen = this.nonDisplayedMemory;\n    } else {\n      this.writeScreen = this.displayedMemory;\n      this.writeScreen.reset();\n    }\n\n    if (this.mode !== 'MODE_ROLL-UP') {\n      this.displayedMemory.nrRollUpRows = null;\n      this.nonDisplayedMemory.nrRollUpRows = null;\n    }\n\n    this.mode = newMode;\n  };\n\n  _proto6.insertChars = function insertChars(chars) {\n    for (var i = 0; i < chars.length; i++) {\n      this.writeScreen.insertChar(chars[i]);\n    }\n\n    var screen = this.writeScreen === this.displayedMemory ? 'DISP' : 'NON_DISP';\n    this.logger.log(VerboseLevel.INFO, screen + ': ' + this.writeScreen.getDisplayText(true));\n\n    if (this.mode === 'MODE_PAINT-ON' || this.mode === 'MODE_ROLL-UP') {\n      this.logger.log(VerboseLevel.TEXT, 'DISPLAYED: ' + this.displayedMemory.getDisplayText(true));\n      this.outputDataUpdate();\n    }\n  };\n\n  _proto6.ccRCL = function ccRCL() {\n    // Resume Caption Loading (switch mode to Pop On)\n    this.logger.log(VerboseLevel.INFO, 'RCL - Resume Caption Loading');\n    this.setMode('MODE_POP-ON');\n  };\n\n  _proto6.ccBS = function ccBS() {\n    // BackSpace\n    this.logger.log(VerboseLevel.INFO, 'BS - BackSpace');\n\n    if (this.mode === 'MODE_TEXT') {\n      return;\n    }\n\n    this.writeScreen.backSpace();\n\n    if (this.writeScreen === this.displayedMemory) {\n      this.outputDataUpdate();\n    }\n  };\n\n  _proto6.ccAOF = function ccAOF() {// Reserved (formerly Alarm Off)\n  };\n\n  _proto6.ccAON = function ccAON() {// Reserved (formerly Alarm On)\n  };\n\n  _proto6.ccDER = function ccDER() {\n    // Delete to End of Row\n    this.logger.log(VerboseLevel.INFO, 'DER- Delete to End of Row');\n    this.writeScreen.clearToEndOfRow();\n    this.outputDataUpdate();\n  };\n\n  _proto6.ccRU = function ccRU(nrRows) {\n    // Roll-Up Captions-2,3,or 4 Rows\n    this.logger.log(VerboseLevel.INFO, 'RU(' + nrRows + ') - Roll Up');\n    this.writeScreen = this.displayedMemory;\n    this.setMode('MODE_ROLL-UP');\n    this.writeScreen.setRollUpRows(nrRows);\n  };\n\n  _proto6.ccFON = function ccFON() {\n    // Flash On\n    this.logger.log(VerboseLevel.INFO, 'FON - Flash On');\n    this.writeScreen.setPen({\n      flash: true\n    });\n  };\n\n  _proto6.ccRDC = function ccRDC() {\n    // Resume Direct Captioning (switch mode to PaintOn)\n    this.logger.log(VerboseLevel.INFO, 'RDC - Resume Direct Captioning');\n    this.setMode('MODE_PAINT-ON');\n  };\n\n  _proto6.ccTR = function ccTR() {\n    // Text Restart in text mode (not supported, however)\n    this.logger.log(VerboseLevel.INFO, 'TR');\n    this.setMode('MODE_TEXT');\n  };\n\n  _proto6.ccRTD = function ccRTD() {\n    // Resume Text Display in Text mode (not supported, however)\n    this.logger.log(VerboseLevel.INFO, 'RTD');\n    this.setMode('MODE_TEXT');\n  };\n\n  _proto6.ccEDM = function ccEDM() {\n    // Erase Displayed Memory\n    this.logger.log(VerboseLevel.INFO, 'EDM - Erase Displayed Memory');\n    this.displayedMemory.reset();\n    this.outputDataUpdate(true);\n  };\n\n  _proto6.ccCR = function ccCR() {\n    // Carriage Return\n    this.logger.log(VerboseLevel.INFO, 'CR - Carriage Return');\n    this.writeScreen.rollUp();\n    this.outputDataUpdate(true);\n  };\n\n  _proto6.ccENM = function ccENM() {\n    // Erase Non-Displayed Memory\n    this.logger.log(VerboseLevel.INFO, 'ENM - Erase Non-displayed Memory');\n    this.nonDisplayedMemory.reset();\n  };\n\n  _proto6.ccEOC = function ccEOC() {\n    // End of Caption (Flip Memories)\n    this.logger.log(VerboseLevel.INFO, 'EOC - End Of Caption');\n\n    if (this.mode === 'MODE_POP-ON') {\n      var tmp = this.displayedMemory;\n      this.displayedMemory = this.nonDisplayedMemory;\n      this.nonDisplayedMemory = tmp;\n      this.writeScreen = this.nonDisplayedMemory;\n      this.logger.log(VerboseLevel.TEXT, 'DISP: ' + this.displayedMemory.getDisplayText());\n    }\n\n    this.outputDataUpdate(true);\n  };\n\n  _proto6.ccTO = function ccTO(nrCols) {\n    // Tab Offset 1,2, or 3 columns\n    this.logger.log(VerboseLevel.INFO, 'TO(' + nrCols + ') - Tab Offset');\n    this.writeScreen.moveCursor(nrCols);\n  };\n\n  _proto6.ccMIDROW = function ccMIDROW(secondByte) {\n    // Parse MIDROW command\n    var styles = {\n      flash: false\n    };\n    styles.underline = secondByte % 2 === 1;\n    styles.italics = secondByte >= 0x2e;\n\n    if (!styles.italics) {\n      var colorIndex = Math.floor(secondByte / 2) - 0x10;\n      var colors = ['white', 'green', 'blue', 'cyan', 'red', 'yellow', 'magenta'];\n      styles.foreground = colors[colorIndex];\n    } else {\n      styles.foreground = 'white';\n    }\n\n    this.logger.log(VerboseLevel.INFO, 'MIDROW: ' + JSON.stringify(styles));\n    this.writeScreen.setPen(styles);\n  };\n\n  _proto6.outputDataUpdate = function outputDataUpdate(dispatch) {\n    if (dispatch === void 0) {\n      dispatch = false;\n    }\n\n    var time = this.logger.time;\n\n    if (time === null) {\n      return;\n    }\n\n    if (this.outputFilter) {\n      if (this.cueStartTime === null && !this.displayedMemory.isEmpty()) {\n        // Start of a new cue\n        this.cueStartTime = time;\n      } else {\n        if (!this.displayedMemory.equals(this.lastOutputScreen)) {\n          this.outputFilter.newCue(this.cueStartTime, time, this.lastOutputScreen);\n\n          if (dispatch && this.outputFilter.dispatchCue) {\n            this.outputFilter.dispatchCue();\n          }\n\n          this.cueStartTime = this.displayedMemory.isEmpty() ? null : time;\n        }\n      }\n\n      this.lastOutputScreen.copy(this.displayedMemory);\n    }\n  };\n\n  _proto6.cueSplitAtTime = function cueSplitAtTime(t) {\n    if (this.outputFilter) {\n      if (!this.displayedMemory.isEmpty()) {\n        if (this.outputFilter.newCue) {\n          this.outputFilter.newCue(this.cueStartTime, t, this.displayedMemory);\n        }\n\n        this.cueStartTime = t;\n      }\n    }\n  };\n\n  return Cea608Channel;\n}();\n\nvar Cea608Parser = /*#__PURE__*/function () {\n  function Cea608Parser(field, out1, out2) {\n    this.channels = void 0;\n    this.currentChannel = 0;\n    this.cmdHistory = void 0;\n    this.logger = void 0;\n    var logger = new cea_608_parser_CaptionsLogger();\n    this.channels = [null, new Cea608Channel(field, out1, logger), new Cea608Channel(field + 1, out2, logger)];\n    this.cmdHistory = createCmdHistory();\n    this.logger = logger;\n  }\n\n  var _proto7 = Cea608Parser.prototype;\n\n  _proto7.getHandler = function getHandler(channel) {\n    return this.channels[channel].getHandler();\n  };\n\n  _proto7.setHandler = function setHandler(channel, newHandler) {\n    this.channels[channel].setHandler(newHandler);\n  }\n  /**\n   * Add data for time t in forms of list of bytes (unsigned ints). The bytes are treated as pairs.\n   */\n  ;\n\n  _proto7.addData = function addData(time, byteList) {\n    var cmdFound;\n    var a;\n    var b;\n    var charsFound = false;\n    this.logger.time = time;\n\n    for (var i = 0; i < byteList.length; i += 2) {\n      a = byteList[i] & 0x7f;\n      b = byteList[i + 1] & 0x7f;\n\n      if (a === 0 && b === 0) {\n        continue;\n      } else {\n        this.logger.log(VerboseLevel.DATA, '[' + numArrayToHexArray([byteList[i], byteList[i + 1]]) + '] -> (' + numArrayToHexArray([a, b]) + ')');\n      }\n\n      cmdFound = this.parseCmd(a, b);\n\n      if (!cmdFound) {\n        cmdFound = this.parseMidrow(a, b);\n      }\n\n      if (!cmdFound) {\n        cmdFound = this.parsePAC(a, b);\n      }\n\n      if (!cmdFound) {\n        cmdFound = this.parseBackgroundAttributes(a, b);\n      }\n\n      if (!cmdFound) {\n        charsFound = this.parseChars(a, b);\n\n        if (charsFound) {\n          var currChNr = this.currentChannel;\n\n          if (currChNr && currChNr > 0) {\n            var channel = this.channels[currChNr];\n            channel.insertChars(charsFound);\n          } else {\n            this.logger.log(VerboseLevel.WARNING, 'No channel found yet. TEXT-MODE?');\n          }\n        }\n      }\n\n      if (!cmdFound && !charsFound) {\n        this.logger.log(VerboseLevel.WARNING, 'Couldn\\'t parse cleaned data ' + numArrayToHexArray([a, b]) + ' orig: ' + numArrayToHexArray([byteList[i], byteList[i + 1]]));\n      }\n    }\n  }\n  /**\n   * Parse Command.\n   * @returns {Boolean} Tells if a command was found\n   */\n  ;\n\n  _proto7.parseCmd = function parseCmd(a, b) {\n    var cmdHistory = this.cmdHistory;\n    var cond1 = (a === 0x14 || a === 0x1C || a === 0x15 || a === 0x1D) && b >= 0x20 && b <= 0x2F;\n    var cond2 = (a === 0x17 || a === 0x1F) && b >= 0x21 && b <= 0x23;\n\n    if (!(cond1 || cond2)) {\n      return false;\n    }\n\n    if (hasCmdRepeated(a, b, cmdHistory)) {\n      setLastCmd(null, null, cmdHistory);\n      this.logger.log(VerboseLevel.DEBUG, 'Repeated command (' + numArrayToHexArray([a, b]) + ') is dropped');\n      return true;\n    }\n\n    var chNr = a === 0x14 || a === 0x15 || a === 0x17 ? 1 : 2;\n    var channel = this.channels[chNr];\n\n    if (a === 0x14 || a === 0x15 || a === 0x1C || a === 0x1D) {\n      if (b === 0x20) {\n        channel.ccRCL();\n      } else if (b === 0x21) {\n        channel.ccBS();\n      } else if (b === 0x22) {\n        channel.ccAOF();\n      } else if (b === 0x23) {\n        channel.ccAON();\n      } else if (b === 0x24) {\n        channel.ccDER();\n      } else if (b === 0x25) {\n        channel.ccRU(2);\n      } else if (b === 0x26) {\n        channel.ccRU(3);\n      } else if (b === 0x27) {\n        channel.ccRU(4);\n      } else if (b === 0x28) {\n        channel.ccFON();\n      } else if (b === 0x29) {\n        channel.ccRDC();\n      } else if (b === 0x2A) {\n        channel.ccTR();\n      } else if (b === 0x2B) {\n        channel.ccRTD();\n      } else if (b === 0x2C) {\n        channel.ccEDM();\n      } else if (b === 0x2D) {\n        channel.ccCR();\n      } else if (b === 0x2E) {\n        channel.ccENM();\n      } else if (b === 0x2F) {\n        channel.ccEOC();\n      }\n    } else {\n      // a == 0x17 || a == 0x1F\n      channel.ccTO(b - 0x20);\n    }\n\n    setLastCmd(a, b, cmdHistory);\n    this.currentChannel = chNr;\n    return true;\n  }\n  /**\n   * Parse midrow styling command\n   * @returns {Boolean}\n   */\n  ;\n\n  _proto7.parseMidrow = function parseMidrow(a, b) {\n    var chNr = 0;\n\n    if ((a === 0x11 || a === 0x19) && b >= 0x20 && b <= 0x2f) {\n      if (a === 0x11) {\n        chNr = 1;\n      } else {\n        chNr = 2;\n      }\n\n      if (chNr !== this.currentChannel) {\n        this.logger.log(VerboseLevel.ERROR, 'Mismatch channel in midrow parsing');\n        return false;\n      }\n\n      var channel = this.channels[chNr];\n\n      if (!channel) {\n        return false;\n      }\n\n      channel.ccMIDROW(b);\n      this.logger.log(VerboseLevel.DEBUG, 'MIDROW (' + numArrayToHexArray([a, b]) + ')');\n      return true;\n    }\n\n    return false;\n  }\n  /**\n   * Parse Preable Access Codes (Table 53).\n   * @returns {Boolean} Tells if PAC found\n   */\n  ;\n\n  _proto7.parsePAC = function parsePAC(a, b) {\n    var row;\n    var cmdHistory = this.cmdHistory;\n    var case1 = (a >= 0x11 && a <= 0x17 || a >= 0x19 && a <= 0x1F) && b >= 0x40 && b <= 0x7F;\n    var case2 = (a === 0x10 || a === 0x18) && b >= 0x40 && b <= 0x5F;\n\n    if (!(case1 || case2)) {\n      return false;\n    }\n\n    if (hasCmdRepeated(a, b, cmdHistory)) {\n      setLastCmd(null, null, cmdHistory);\n      return true; // Repeated commands are dropped (once)\n    }\n\n    var chNr = a <= 0x17 ? 1 : 2;\n\n    if (b >= 0x40 && b <= 0x5F) {\n      row = chNr === 1 ? rowsLowCh1[a] : rowsLowCh2[a];\n    } else {\n      // 0x60 <= b <= 0x7F\n      row = chNr === 1 ? rowsHighCh1[a] : rowsHighCh2[a];\n    }\n\n    var channel = this.channels[chNr];\n\n    if (!channel) {\n      return false;\n    }\n\n    channel.setPAC(this.interpretPAC(row, b));\n    setLastCmd(a, b, cmdHistory);\n    this.currentChannel = chNr;\n    return true;\n  }\n  /**\n   * Interpret the second byte of the pac, and return the information.\n   * @returns {Object} pacData with style parameters.\n   */\n  ;\n\n  _proto7.interpretPAC = function interpretPAC(row, _byte3) {\n    var pacIndex = _byte3;\n    var pacData = {\n      color: null,\n      italics: false,\n      indent: null,\n      underline: false,\n      row: row\n    };\n\n    if (_byte3 > 0x5F) {\n      pacIndex = _byte3 - 0x60;\n    } else {\n      pacIndex = _byte3 - 0x40;\n    }\n\n    pacData.underline = (pacIndex & 1) === 1;\n\n    if (pacIndex <= 0xd) {\n      pacData.color = ['white', 'green', 'blue', 'cyan', 'red', 'yellow', 'magenta', 'white'][Math.floor(pacIndex / 2)];\n    } else if (pacIndex <= 0xf) {\n      pacData.italics = true;\n      pacData.color = 'white';\n    } else {\n      pacData.indent = Math.floor((pacIndex - 0x10) / 2) * 4;\n    }\n\n    return pacData; // Note that row has zero offset. The spec uses 1.\n  }\n  /**\n   * Parse characters.\n   * @returns An array with 1 to 2 codes corresponding to chars, if found. null otherwise.\n   */\n  ;\n\n  _proto7.parseChars = function parseChars(a, b) {\n    var channelNr;\n    var charCodes = null;\n    var charCode1 = null;\n\n    if (a >= 0x19) {\n      channelNr = 2;\n      charCode1 = a - 8;\n    } else {\n      channelNr = 1;\n      charCode1 = a;\n    }\n\n    if (charCode1 >= 0x11 && charCode1 <= 0x13) {\n      // Special character\n      var oneCode = b;\n\n      if (charCode1 === 0x11) {\n        oneCode = b + 0x50;\n      } else if (charCode1 === 0x12) {\n        oneCode = b + 0x70;\n      } else {\n        oneCode = b + 0x90;\n      }\n\n      this.logger.log(VerboseLevel.INFO, 'Special char \\'' + getCharForByte(oneCode) + '\\' in channel ' + channelNr);\n      charCodes = [oneCode];\n    } else if (a >= 0x20 && a <= 0x7f) {\n      charCodes = b === 0 ? [a] : [a, b];\n    }\n\n    if (charCodes) {\n      var hexCodes = numArrayToHexArray(charCodes);\n      this.logger.log(VerboseLevel.DEBUG, 'Char codes =  ' + hexCodes.join(','));\n      setLastCmd(a, b, this.cmdHistory);\n    }\n\n    return charCodes;\n  }\n  /**\n   * Parse extended background attributes as well as new foreground color black.\n   * @returns {Boolean} Tells if background attributes are found\n   */\n  ;\n\n  _proto7.parseBackgroundAttributes = function parseBackgroundAttributes(a, b) {\n    var case1 = (a === 0x10 || a === 0x18) && b >= 0x20 && b <= 0x2f;\n    var case2 = (a === 0x17 || a === 0x1f) && b >= 0x2d && b <= 0x2f;\n\n    if (!(case1 || case2)) {\n      return false;\n    }\n\n    var index;\n    var bkgData = {};\n\n    if (a === 0x10 || a === 0x18) {\n      index = Math.floor((b - 0x20) / 2);\n      bkgData.background = backgroundColors[index];\n\n      if (b % 2 === 1) {\n        bkgData.background = bkgData.background + '_semi';\n      }\n    } else if (b === 0x2d) {\n      bkgData.background = 'transparent';\n    } else {\n      bkgData.foreground = 'black';\n\n      if (b === 0x2f) {\n        bkgData.underline = true;\n      }\n    }\n\n    var chNr = a <= 0x17 ? 1 : 2;\n    var channel = this.channels[chNr];\n    channel.setBkgData(bkgData);\n    setLastCmd(a, b, this.cmdHistory);\n    return true;\n  }\n  /**\n   * Reset state of parser and its channels.\n   */\n  ;\n\n  _proto7.reset = function reset() {\n    for (var i = 0; i < Object.keys(this.channels).length; i++) {\n      var channel = this.channels[i];\n\n      if (channel) {\n        channel.reset();\n      }\n    }\n\n    this.cmdHistory = createCmdHistory();\n  }\n  /**\n   * Trigger the generation of a cue, and the start of a new one if displayScreens are not empty.\n   */\n  ;\n\n  _proto7.cueSplitAtTime = function cueSplitAtTime(t) {\n    for (var i = 0; i < this.channels.length; i++) {\n      var channel = this.channels[i];\n\n      if (channel) {\n        channel.cueSplitAtTime(t);\n      }\n    }\n  };\n\n  return Cea608Parser;\n}();\n\nfunction setLastCmd(a, b, cmdHistory) {\n  cmdHistory.a = a;\n  cmdHistory.b = b;\n}\n\nfunction hasCmdRepeated(a, b, cmdHistory) {\n  return cmdHistory.a === a && cmdHistory.b === b;\n}\n\nfunction createCmdHistory() {\n  return {\n    a: null,\n    b: null\n  };\n}\n\n/* harmony default export */ var cea_608_parser = (Cea608Parser);\n// CONCATENATED MODULE: ./src/utils/output-filter.ts\nvar OutputFilter = /*#__PURE__*/function () {\n  function OutputFilter(timelineController, trackName) {\n    this.timelineController = void 0;\n    this.cueRanges = [];\n    this.trackName = void 0;\n    this.startTime = null;\n    this.endTime = null;\n    this.screen = null;\n    this.timelineController = timelineController;\n    this.trackName = trackName;\n  }\n\n  var _proto = OutputFilter.prototype;\n\n  _proto.dispatchCue = function dispatchCue() {\n    if (this.startTime === null) {\n      return;\n    }\n\n    this.timelineController.addCues(this.trackName, this.startTime, this.endTime, this.screen, this.cueRanges);\n    this.startTime = null;\n  };\n\n  _proto.newCue = function newCue(startTime, endTime, screen) {\n    if (this.startTime === null || this.startTime > startTime) {\n      this.startTime = startTime;\n    }\n\n    this.endTime = endTime;\n    this.screen = screen;\n    this.timelineController.createCaptionsTrack(this.trackName);\n  };\n\n  _proto.reset = function reset() {\n    this.cueRanges = [];\n  };\n\n  return OutputFilter;\n}();\n\n\n// CONCATENATED MODULE: ./src/utils/webvtt-parser.js\n\n\n\n\n\n // String.prototype.startsWith is not supported in IE11\n\nvar startsWith = function startsWith(inputString, searchString, position) {\n  return inputString.substr(position || 0, searchString.length) === searchString;\n};\n\nvar webvtt_parser_cueString2millis = function cueString2millis(timeString) {\n  var ts = parseInt(timeString.substr(-3));\n  var secs = parseInt(timeString.substr(-6, 2));\n  var mins = parseInt(timeString.substr(-9, 2));\n  var hours = timeString.length > 9 ? parseInt(timeString.substr(0, timeString.indexOf(':'))) : 0;\n\n  if (!Object(number_isFinite[\"isFiniteNumber\"])(ts) || !Object(number_isFinite[\"isFiniteNumber\"])(secs) || !Object(number_isFinite[\"isFiniteNumber\"])(mins) || !Object(number_isFinite[\"isFiniteNumber\"])(hours)) {\n    throw Error(\"Malformed X-TIMESTAMP-MAP: Local:\" + timeString);\n  }\n\n  ts += 1000 * secs;\n  ts += 60 * 1000 * mins;\n  ts += 60 * 60 * 1000 * hours;\n  return ts;\n}; // From https://github.com/darkskyapp/string-hash\n\n\nvar hash = function hash(text) {\n  var hash = 5381;\n  var i = text.length;\n\n  while (i) {\n    hash = hash * 33 ^ text.charCodeAt(--i);\n  }\n\n  return (hash >>> 0).toString();\n};\n\nvar calculateOffset = function calculateOffset(vttCCs, cc, presentationTime) {\n  var currCC = vttCCs[cc];\n  var prevCC = vttCCs[currCC.prevCC]; // This is the first discontinuity or cues have been processed since the last discontinuity\n  // Offset = current discontinuity time\n\n  if (!prevCC || !prevCC.new && currCC.new) {\n    vttCCs.ccOffset = vttCCs.presentationOffset = currCC.start;\n    currCC.new = false;\n    return;\n  } // There have been discontinuities since cues were last parsed.\n  // Offset = time elapsed\n\n\n  while (prevCC && prevCC.new) {\n    vttCCs.ccOffset += currCC.start - prevCC.start;\n    currCC.new = false;\n    currCC = prevCC;\n    prevCC = vttCCs[currCC.prevCC];\n  }\n\n  vttCCs.presentationOffset = presentationTime;\n};\n\nvar WebVTTParser = {\n  parse: function parse(vttByteArray, syncPTS, vttCCs, cc, callBack, errorCallBack) {\n    // Convert byteArray into string, replacing any somewhat exotic linefeeds with \"\\n\", then split on that character.\n    var re = /\\r\\n|\\n\\r|\\n|\\r/g; // Uint8Array.prototype.reduce is not implemented in IE11\n\n    var vttLines = Object(id3[\"utf8ArrayToStr\"])(new Uint8Array(vttByteArray)).trim().replace(re, '\\n').split('\\n');\n    var cueTime = '00:00.000';\n    var mpegTs = 0;\n    var localTime = 0;\n    var presentationTime = 0;\n    var cues = [];\n    var parsingError;\n    var inHeader = true;\n    var timestampMap = false; // let VTTCue = VTTCue || window.TextTrackCue;\n    // Create parser object using VTTCue with TextTrackCue fallback on certain browsers.\n\n    var parser = new vttparser();\n\n    parser.oncue = function (cue) {\n      // Adjust cue timing; clamp cues to start no earlier than - and drop cues that don't end after - 0 on timeline.\n      var currCC = vttCCs[cc];\n      var cueOffset = vttCCs.ccOffset; // Update offsets for new discontinuities\n\n      if (currCC && currCC.new) {\n        if (localTime !== undefined) {\n          // When local time is provided, offset = discontinuity start time - local time\n          cueOffset = vttCCs.ccOffset = currCC.start;\n        } else {\n          calculateOffset(vttCCs, cc, presentationTime);\n        }\n      }\n\n      if (presentationTime) {\n        // If we have MPEGTS, offset = presentation time + discontinuity offset\n        cueOffset = presentationTime - vttCCs.presentationOffset;\n      }\n\n      if (timestampMap) {\n        cue.startTime += cueOffset - localTime;\n        cue.endTime += cueOffset - localTime;\n      } // Create a unique hash id for a cue based on start/end times and text.\n      // This helps timeline-controller to avoid showing repeated captions.\n\n\n      cue.id = hash(cue.startTime.toString()) + hash(cue.endTime.toString()) + hash(cue.text); // Fix encoding of special characters. TODO: Test with all sorts of weird characters.\n\n      cue.text = decodeURIComponent(encodeURIComponent(cue.text));\n\n      if (cue.endTime > 0) {\n        cues.push(cue);\n      }\n    };\n\n    parser.onparsingerror = function (e) {\n      parsingError = e;\n    };\n\n    parser.onflush = function () {\n      if (parsingError && errorCallBack) {\n        errorCallBack(parsingError);\n        return;\n      }\n\n      callBack(cues);\n    }; // Go through contents line by line.\n\n\n    vttLines.forEach(function (line) {\n      if (inHeader) {\n        // Look for X-TIMESTAMP-MAP in header.\n        if (startsWith(line, 'X-TIMESTAMP-MAP=')) {\n          // Once found, no more are allowed anyway, so stop searching.\n          inHeader = false;\n          timestampMap = true; // Extract LOCAL and MPEGTS.\n\n          line.substr(16).split(',').forEach(function (timestamp) {\n            if (startsWith(timestamp, 'LOCAL:')) {\n              cueTime = timestamp.substr(6);\n            } else if (startsWith(timestamp, 'MPEGTS:')) {\n              mpegTs = parseInt(timestamp.substr(7));\n            }\n          });\n\n          try {\n            // Calculate subtitle offset in milliseconds.\n            if (syncPTS + (vttCCs[cc].start * 90000 || 0) < 0) {\n              syncPTS += 8589934592;\n            } // Adjust MPEGTS by sync PTS.\n\n\n            mpegTs -= syncPTS; // Convert cue time to seconds\n\n            localTime = webvtt_parser_cueString2millis(cueTime) / 1000; // Convert MPEGTS to seconds from 90kHz.\n\n            presentationTime = mpegTs / 90000;\n          } catch (e) {\n            timestampMap = false;\n            parsingError = e;\n          } // Return without parsing X-TIMESTAMP-MAP line.\n\n\n          return;\n        } else if (line === '') {\n          inHeader = false;\n        }\n      } // Parse line by default.\n\n\n      parser.parse(line + '\\n');\n    });\n    parser.flush();\n  }\n};\n/* harmony default export */ var webvtt_parser = (WebVTTParser);\n// CONCATENATED MODULE: ./src/controller/timeline-controller.ts\n\n\n\nfunction timeline_controller_assertThisInitialized(self) { if (self === void 0) { throw new ReferenceError(\"this hasn't been initialised - super() hasn't been called\"); } return self; }\n\nfunction timeline_controller_inheritsLoose(subClass, superClass) { subClass.prototype = Object.create(superClass.prototype); subClass.prototype.constructor = subClass; subClass.__proto__ = superClass; }\n\n\n\n\n\n\n\n\n\nvar timeline_controller_TimelineController = /*#__PURE__*/function (_EventHandler) {\n  timeline_controller_inheritsLoose(TimelineController, _EventHandler);\n\n  function TimelineController(hls) {\n    var _this;\n\n    _this = _EventHandler.call(this, hls, events[\"default\"].MEDIA_ATTACHING, events[\"default\"].MEDIA_DETACHING, events[\"default\"].FRAG_PARSING_USERDATA, events[\"default\"].FRAG_DECRYPTED, events[\"default\"].MANIFEST_LOADING, events[\"default\"].MANIFEST_LOADED, events[\"default\"].FRAG_LOADED, events[\"default\"].INIT_PTS_FOUND) || this;\n    _this.media = null;\n    _this.config = void 0;\n    _this.enabled = true;\n    _this.Cues = void 0;\n    _this.textTracks = [];\n    _this.tracks = [];\n    _this.initPTS = [];\n    _this.unparsedVttFrags = [];\n    _this.captionsTracks = {};\n    _this.nonNativeCaptionsTracks = {};\n    _this.captionsProperties = void 0;\n    _this.cea608Parser1 = void 0;\n    _this.cea608Parser2 = void 0;\n    _this.lastSn = -1;\n    _this.prevCC = -1;\n    _this.vttCCs = newVTTCCs();\n    _this.hls = hls;\n    _this.config = hls.config;\n    _this.Cues = hls.config.cueHandler;\n    _this.captionsProperties = {\n      textTrack1: {\n        label: _this.config.captionsTextTrack1Label,\n        languageCode: _this.config.captionsTextTrack1LanguageCode\n      },\n      textTrack2: {\n        label: _this.config.captionsTextTrack2Label,\n        languageCode: _this.config.captionsTextTrack2LanguageCode\n      },\n      textTrack3: {\n        label: _this.config.captionsTextTrack3Label,\n        languageCode: _this.config.captionsTextTrack3LanguageCode\n      },\n      textTrack4: {\n        label: _this.config.captionsTextTrack4Label,\n        languageCode: _this.config.captionsTextTrack4LanguageCode\n      }\n    };\n\n    if (_this.config.enableCEA708Captions) {\n      var channel1 = new OutputFilter(timeline_controller_assertThisInitialized(_this), 'textTrack1');\n      var channel2 = new OutputFilter(timeline_controller_assertThisInitialized(_this), 'textTrack2');\n      var channel3 = new OutputFilter(timeline_controller_assertThisInitialized(_this), 'textTrack3');\n      var channel4 = new OutputFilter(timeline_controller_assertThisInitialized(_this), 'textTrack4');\n      _this.cea608Parser1 = new cea_608_parser(1, channel1, channel2);\n      _this.cea608Parser2 = new cea_608_parser(3, channel3, channel4);\n    }\n\n    return _this;\n  }\n\n  var _proto = TimelineController.prototype;\n\n  _proto.addCues = function addCues(trackName, startTime, endTime, screen, cueRanges) {\n    // skip cues which overlap more than 50% with previously parsed time ranges\n    var merged = false;\n\n    for (var i = cueRanges.length; i--;) {\n      var cueRange = cueRanges[i];\n      var overlap = intersection(cueRange[0], cueRange[1], startTime, endTime);\n\n      if (overlap >= 0) {\n        cueRange[0] = Math.min(cueRange[0], startTime);\n        cueRange[1] = Math.max(cueRange[1], endTime);\n        merged = true;\n\n        if (overlap / (endTime - startTime) > 0.5) {\n          return;\n        }\n      }\n    }\n\n    if (!merged) {\n      cueRanges.push([startTime, endTime]);\n    }\n\n    if (this.config.renderTextTracksNatively) {\n      this.Cues.newCue(this.captionsTracks[trackName], startTime, endTime, screen);\n    } else {\n      var cues = this.Cues.newCue(null, startTime, endTime, screen);\n      this.hls.trigger(events[\"default\"].CUES_PARSED, {\n        type: 'captions',\n        cues: cues,\n        track: trackName\n      });\n    }\n  } // Triggered when an initial PTS is found; used for synchronisation of WebVTT.\n  ;\n\n  _proto.onInitPtsFound = function onInitPtsFound(data) {\n    var _this2 = this;\n\n    var frag = data.frag,\n        id = data.id,\n        initPTS = data.initPTS;\n    var unparsedVttFrags = this.unparsedVttFrags;\n\n    if (id === 'main') {\n      this.initPTS[frag.cc] = initPTS;\n    } // Due to asynchronous processing, initial PTS may arrive later than the first VTT fragments are loaded.\n    // Parse any unparsed fragments upon receiving the initial PTS.\n\n\n    if (unparsedVttFrags.length) {\n      this.unparsedVttFrags = [];\n      unparsedVttFrags.forEach(function (frag) {\n        _this2.onFragLoaded(frag);\n      });\n    }\n  };\n\n  _proto.getExistingTrack = function getExistingTrack(trackName) {\n    var media = this.media;\n\n    if (media) {\n      for (var i = 0; i < media.textTracks.length; i++) {\n        var textTrack = media.textTracks[i];\n\n        if (textTrack[trackName]) {\n          return textTrack;\n        }\n      }\n    }\n\n    return null;\n  };\n\n  _proto.createCaptionsTrack = function createCaptionsTrack(trackName) {\n    if (this.config.renderTextTracksNatively) {\n      this.createNativeTrack(trackName);\n    } else {\n      this.createNonNativeTrack(trackName);\n    }\n  };\n\n  _proto.createNativeTrack = function createNativeTrack(trackName) {\n    if (this.captionsTracks[trackName]) {\n      return;\n    }\n\n    var captionsProperties = this.captionsProperties,\n        captionsTracks = this.captionsTracks,\n        media = this.media;\n    var _captionsProperties$t = captionsProperties[trackName],\n        label = _captionsProperties$t.label,\n        languageCode = _captionsProperties$t.languageCode; // Enable reuse of existing text track.\n\n    var existingTrack = this.getExistingTrack(trackName);\n\n    if (!existingTrack) {\n      var textTrack = this.createTextTrack('captions', label, languageCode);\n\n      if (textTrack) {\n        // Set a special property on the track so we know it's managed by Hls.js\n        textTrack[trackName] = true;\n        captionsTracks[trackName] = textTrack;\n      }\n    } else {\n      captionsTracks[trackName] = existingTrack;\n      clearCurrentCues(captionsTracks[trackName]);\n      sendAddTrackEvent(captionsTracks[trackName], media);\n    }\n  };\n\n  _proto.createNonNativeTrack = function createNonNativeTrack(trackName) {\n    if (this.nonNativeCaptionsTracks[trackName]) {\n      return;\n    } // Create a list of a single track for the provider to consume\n\n\n    var trackProperties = this.captionsProperties[trackName];\n\n    if (!trackProperties) {\n      return;\n    }\n\n    var label = trackProperties.label;\n    var track = {\n      _id: trackName,\n      label: label,\n      kind: 'captions',\n      default: trackProperties.media ? !!trackProperties.media.default : false,\n      closedCaptions: trackProperties.media\n    };\n    this.nonNativeCaptionsTracks[trackName] = track;\n    this.hls.trigger(events[\"default\"].NON_NATIVE_TEXT_TRACKS_FOUND, {\n      tracks: [track]\n    });\n  };\n\n  _proto.createTextTrack = function createTextTrack(kind, label, lang) {\n    var media = this.media;\n\n    if (!media) {\n      return;\n    }\n\n    return media.addTextTrack(kind, label, lang);\n  };\n\n  _proto.destroy = function destroy() {\n    _EventHandler.prototype.destroy.call(this);\n  };\n\n  _proto.onMediaAttaching = function onMediaAttaching(data) {\n    this.media = data.media;\n\n    this._cleanTracks();\n  };\n\n  _proto.onMediaDetaching = function onMediaDetaching() {\n    var captionsTracks = this.captionsTracks;\n    Object.keys(captionsTracks).forEach(function (trackName) {\n      clearCurrentCues(captionsTracks[trackName]);\n      delete captionsTracks[trackName];\n    });\n    this.nonNativeCaptionsTracks = {};\n  };\n\n  _proto.onManifestLoading = function onManifestLoading() {\n    this.lastSn = -1; // Detect discontiguity in fragment parsing\n\n    this.prevCC = -1;\n    this.vttCCs = newVTTCCs(); // Detect discontinuity in subtitle manifests\n\n    this._cleanTracks();\n\n    this.tracks = [];\n    this.captionsTracks = {};\n    this.nonNativeCaptionsTracks = {};\n  };\n\n  _proto._cleanTracks = function _cleanTracks() {\n    // clear outdated subtitles\n    var media = this.media;\n\n    if (!media) {\n      return;\n    }\n\n    var textTracks = media.textTracks;\n\n    if (textTracks) {\n      for (var i = 0; i < textTracks.length; i++) {\n        clearCurrentCues(textTracks[i]);\n      }\n    }\n  };\n\n  _proto.onManifestLoaded = function onManifestLoaded(data) {\n    var _this3 = this;\n\n    this.textTracks = [];\n    this.unparsedVttFrags = this.unparsedVttFrags || [];\n    this.initPTS = [];\n\n    if (this.cea608Parser1 && this.cea608Parser2) {\n      this.cea608Parser1.reset();\n      this.cea608Parser2.reset();\n    }\n\n    if (this.config.enableWebVTT) {\n      var tracks = data.subtitles || [];\n      var sameTracks = this.tracks && tracks && this.tracks.length === tracks.length;\n      this.tracks = data.subtitles || [];\n\n      if (this.config.renderTextTracksNatively) {\n        var inUseTracks = this.media ? this.media.textTracks : [];\n        this.tracks.forEach(function (track, index) {\n          var textTrack;\n\n          if (index < inUseTracks.length) {\n            var inUseTrack = null;\n\n            for (var i = 0; i < inUseTracks.length; i++) {\n              if (canReuseVttTextTrack(inUseTracks[i], track)) {\n                inUseTrack = inUseTracks[i];\n                break;\n              }\n            } // Reuse tracks with the same label, but do not reuse 608/708 tracks\n\n\n            if (inUseTrack) {\n              textTrack = inUseTrack;\n            }\n          }\n\n          if (!textTrack) {\n            textTrack = _this3.createTextTrack('subtitles', track.name, track.lang);\n          }\n\n          if (track.default) {\n            textTrack.mode = _this3.hls.subtitleDisplay ? 'showing' : 'hidden';\n          } else {\n            textTrack.mode = 'disabled';\n          }\n\n          _this3.textTracks.push(textTrack);\n        });\n      } else if (!sameTracks && this.tracks && this.tracks.length) {\n        // Create a list of tracks for the provider to consume\n        var tracksList = this.tracks.map(function (track) {\n          return {\n            label: track.name,\n            kind: track.type.toLowerCase(),\n            default: track.default,\n            subtitleTrack: track\n          };\n        });\n        this.hls.trigger(events[\"default\"].NON_NATIVE_TEXT_TRACKS_FOUND, {\n          tracks: tracksList\n        });\n      }\n    }\n\n    if (this.config.enableCEA708Captions && data.captions) {\n      data.captions.forEach(function (captionsTrack) {\n        var instreamIdMatch = /(?:CC|SERVICE)([1-4])/.exec(captionsTrack.instreamId);\n\n        if (!instreamIdMatch) {\n          return;\n        }\n\n        var trackName = \"textTrack\" + instreamIdMatch[1];\n        var trackProperties = _this3.captionsProperties[trackName];\n\n        if (!trackProperties) {\n          return;\n        }\n\n        trackProperties.label = captionsTrack.name;\n\n        if (captionsTrack.lang) {\n          // optional attribute\n          trackProperties.languageCode = captionsTrack.lang;\n        }\n\n        trackProperties.media = captionsTrack;\n      });\n    }\n  };\n\n  _proto.onFragLoaded = function onFragLoaded(data) {\n    var frag = data.frag,\n        payload = data.payload;\n    var cea608Parser1 = this.cea608Parser1,\n        cea608Parser2 = this.cea608Parser2,\n        initPTS = this.initPTS,\n        lastSn = this.lastSn,\n        unparsedVttFrags = this.unparsedVttFrags;\n\n    if (frag.type === 'main') {\n      var sn = frag.sn; // if this frag isn't contiguous, clear the parser so cues with bad start/end times aren't added to the textTrack\n\n      if (frag.sn !== lastSn + 1) {\n        if (cea608Parser1 && cea608Parser2) {\n          cea608Parser1.reset();\n          cea608Parser2.reset();\n        }\n      }\n\n      this.lastSn = sn;\n    } // eslint-disable-line brace-style\n    // If fragment is subtitle type, parse as WebVTT.\n    else if (frag.type === 'subtitle') {\n        if (payload.byteLength) {\n          // We need an initial synchronisation PTS. Store fragments as long as none has arrived.\n          if (!Object(number_isFinite[\"isFiniteNumber\"])(initPTS[frag.cc])) {\n            unparsedVttFrags.push(data);\n\n            if (initPTS.length) {\n              // finish unsuccessfully, otherwise the subtitle-stream-controller could be blocked from loading new frags.\n              this.hls.trigger(events[\"default\"].SUBTITLE_FRAG_PROCESSED, {\n                success: false,\n                frag: frag\n              });\n            }\n\n            return;\n          }\n\n          var decryptData = frag.decryptdata; // If the subtitles are not encrypted, parse VTTs now. Otherwise, we need to wait.\n\n          if (decryptData == null || decryptData.key == null || decryptData.method !== 'AES-128') {\n            this._parseVTTs(frag, payload);\n          }\n        } else {\n          // In case there is no payload, finish unsuccessfully.\n          this.hls.trigger(events[\"default\"].SUBTITLE_FRAG_PROCESSED, {\n            success: false,\n            frag: frag\n          });\n        }\n      }\n  };\n\n  _proto._parseVTTs = function _parseVTTs(frag, payload) {\n    var _this4 = this;\n\n    var hls = this.hls,\n        prevCC = this.prevCC,\n        textTracks = this.textTracks,\n        vttCCs = this.vttCCs;\n\n    if (!vttCCs[frag.cc]) {\n      vttCCs[frag.cc] = {\n        start: frag.start,\n        prevCC: prevCC,\n        new: true\n      };\n      this.prevCC = frag.cc;\n    } // Parse the WebVTT file contents.\n\n\n    webvtt_parser.parse(payload, this.initPTS[frag.cc], vttCCs, frag.cc, function (cues) {\n      if (_this4.config.renderTextTracksNatively) {\n        var currentTrack = textTracks[frag.level]; // WebVTTParser.parse is an async method and if the currently selected text track mode is set to \"disabled\"\n        // before parsing is done then don't try to access currentTrack.cues.getCueById as cues will be null\n        // and trying to access getCueById method of cues will throw an exception\n        // Because we check if the mode is diabled, we can force check `cues` below. They can't be null.\n\n        if (currentTrack.mode === 'disabled') {\n          hls.trigger(events[\"default\"].SUBTITLE_FRAG_PROCESSED, {\n            success: false,\n            frag: frag\n          });\n          return;\n        } // Add cues and trigger event with success true.\n\n\n        cues.forEach(function (cue) {\n          // Sometimes there are cue overlaps on segmented vtts so the same\n          // cue can appear more than once in different vtt files.\n          // This avoid showing duplicated cues with same timecode and text.\n          if (!currentTrack.cues.getCueById(cue.id)) {\n            try {\n              currentTrack.addCue(cue);\n\n              if (!currentTrack.cues.getCueById(cue.id)) {\n                throw new Error(\"addCue is failed for: \" + cue);\n              }\n            } catch (err) {\n              logger[\"logger\"].debug(\"Failed occurred on adding cues: \" + err);\n              var textTrackCue = new window.TextTrackCue(cue.startTime, cue.endTime, cue.text);\n              textTrackCue.id = cue.id;\n              currentTrack.addCue(textTrackCue);\n            }\n          }\n        });\n      } else {\n        var trackId = _this4.tracks[frag.level].default ? 'default' : 'subtitles' + frag.level;\n        hls.trigger(events[\"default\"].CUES_PARSED, {\n          type: 'subtitles',\n          cues: cues,\n          track: trackId\n        });\n      }\n\n      hls.trigger(events[\"default\"].SUBTITLE_FRAG_PROCESSED, {\n        success: true,\n        frag: frag\n      });\n    }, function (e) {\n      // Something went wrong while parsing. Trigger event with success false.\n      logger[\"logger\"].log(\"Failed to parse VTT cue: \" + e);\n      hls.trigger(events[\"default\"].SUBTITLE_FRAG_PROCESSED, {\n        success: false,\n        frag: frag\n      });\n    });\n  };\n\n  _proto.onFragDecrypted = function onFragDecrypted(data) {\n    var frag = data.frag,\n        payload = data.payload;\n\n    if (frag.type === 'subtitle') {\n      if (!Object(number_isFinite[\"isFiniteNumber\"])(this.initPTS[frag.cc])) {\n        this.unparsedVttFrags.push(data);\n        return;\n      }\n\n      this._parseVTTs(frag, payload);\n    }\n  };\n\n  _proto.onFragParsingUserdata = function onFragParsingUserdata(data) {\n    var cea608Parser1 = this.cea608Parser1,\n        cea608Parser2 = this.cea608Parser2;\n\n    if (!this.enabled || !(cea608Parser1 && cea608Parser2)) {\n      return;\n    } // If the event contains captions (found in the bytes property), push all bytes into the parser immediately\n    // It will create the proper timestamps based on the PTS value\n\n\n    for (var i = 0; i < data.samples.length; i++) {\n      var ccBytes = data.samples[i].bytes;\n\n      if (ccBytes) {\n        var ccdatas = this.extractCea608Data(ccBytes);\n        cea608Parser1.addData(data.samples[i].pts, ccdatas[0]);\n        cea608Parser2.addData(data.samples[i].pts, ccdatas[1]);\n      }\n    }\n  };\n\n  _proto.extractCea608Data = function extractCea608Data(byteArray) {\n    var count = byteArray[0] & 31;\n    var position = 2;\n    var actualCCBytes = [[], []];\n\n    for (var j = 0; j < count; j++) {\n      var tmpByte = byteArray[position++];\n      var ccbyte1 = 0x7F & byteArray[position++];\n      var ccbyte2 = 0x7F & byteArray[position++];\n      var ccValid = (4 & tmpByte) !== 0;\n      var ccType = 3 & tmpByte;\n\n      if (ccbyte1 === 0 && ccbyte2 === 0) {\n        continue;\n      }\n\n      if (ccValid) {\n        if (ccType === 0 || ccType === 1) {\n          actualCCBytes[ccType].push(ccbyte1);\n          actualCCBytes[ccType].push(ccbyte2);\n        }\n      }\n    }\n\n    return actualCCBytes;\n  };\n\n  return TimelineController;\n}(event_handler);\n\nfunction canReuseVttTextTrack(inUseTrack, manifestTrack) {\n  return inUseTrack && inUseTrack.label === manifestTrack.name && !(inUseTrack.textTrack1 || inUseTrack.textTrack2);\n}\n\nfunction intersection(x1, x2, y1, y2) {\n  return Math.min(x2, y2) - Math.max(x1, y1);\n}\n\nfunction newVTTCCs() {\n  return {\n    ccOffset: 0,\n    presentationOffset: 0,\n    0: {\n      start: 0,\n      prevCC: -1,\n      new: false\n    }\n  };\n}\n\n/* harmony default export */ var timeline_controller = (timeline_controller_TimelineController);\n// CONCATENATED MODULE: ./src/controller/subtitle-track-controller.js\n\n\n\n\nfunction subtitle_track_controller_defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if (\"value\" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }\n\nfunction subtitle_track_controller_createClass(Constructor, protoProps, staticProps) { if (protoProps) subtitle_track_controller_defineProperties(Constructor.prototype, protoProps); if (staticProps) subtitle_track_controller_defineProperties(Constructor, staticProps); return Constructor; }\n\nfunction subtitle_track_controller_inheritsLoose(subClass, superClass) { subClass.prototype = Object.create(superClass.prototype); subClass.prototype.constructor = subClass; subClass.__proto__ = superClass; }\n\n\n\n\n\n\n\nvar subtitle_track_controller_SubtitleTrackController = /*#__PURE__*/function (_EventHandler) {\n  subtitle_track_controller_inheritsLoose(SubtitleTrackController, _EventHandler);\n\n  function SubtitleTrackController(hls) {\n    var _this;\n\n    _this = _EventHandler.call(this, hls, events[\"default\"].MEDIA_ATTACHED, events[\"default\"].MEDIA_DETACHING, events[\"default\"].MANIFEST_LOADED, events[\"default\"].SUBTITLE_TRACK_LOADED) || this;\n    _this.tracks = [];\n    _this.trackId = -1;\n    _this.media = null;\n    _this.stopped = true;\n    /**\n     * @member {boolean} subtitleDisplay Enable/disable subtitle display rendering\n     */\n\n    _this.subtitleDisplay = true;\n    /**\n     * Keeps reference to a default track id when media has not been attached yet\n     * @member {number}\n     */\n\n    _this.queuedDefaultTrack = null;\n    return _this;\n  }\n\n  var _proto = SubtitleTrackController.prototype;\n\n  _proto.destroy = function destroy() {\n    event_handler.prototype.destroy.call(this);\n  } // Listen for subtitle track change, then extract the current track ID.\n  ;\n\n  _proto.onMediaAttached = function onMediaAttached(data) {\n    var _this2 = this;\n\n    this.media = data.media;\n\n    if (!this.media) {\n      return;\n    }\n\n    if (Object(number_isFinite[\"isFiniteNumber\"])(this.queuedDefaultTrack)) {\n      this.subtitleTrack = this.queuedDefaultTrack;\n      this.queuedDefaultTrack = null;\n    }\n\n    this.trackChangeListener = this._onTextTracksChanged.bind(this);\n    this.useTextTrackPolling = !(this.media.textTracks && 'onchange' in this.media.textTracks);\n\n    if (this.useTextTrackPolling) {\n      this.subtitlePollingInterval = setInterval(function () {\n        _this2.trackChangeListener();\n      }, 500);\n    } else {\n      this.media.textTracks.addEventListener('change', this.trackChangeListener);\n    }\n  };\n\n  _proto.onMediaDetaching = function onMediaDetaching() {\n    if (!this.media) {\n      return;\n    }\n\n    if (this.useTextTrackPolling) {\n      clearInterval(this.subtitlePollingInterval);\n    } else {\n      this.media.textTracks.removeEventListener('change', this.trackChangeListener);\n    }\n\n    if (Object(number_isFinite[\"isFiniteNumber\"])(this.subtitleTrack)) {\n      this.queuedDefaultTrack = this.subtitleTrack;\n    }\n\n    var textTracks = filterSubtitleTracks(this.media.textTracks); // Clear loaded cues on media detachment from tracks\n\n    textTracks.forEach(function (track) {\n      clearCurrentCues(track);\n    }); // Disable all subtitle tracks before detachment so when reattached only tracks in that content are enabled.\n\n    this.subtitleTrack = -1;\n    this.media = null;\n  } // Fired whenever a new manifest is loaded.\n  ;\n\n  _proto.onManifestLoaded = function onManifestLoaded(data) {\n    var _this3 = this;\n\n    var tracks = data.subtitles || [];\n    this.tracks = tracks;\n    this.hls.trigger(events[\"default\"].SUBTITLE_TRACKS_UPDATED, {\n      subtitleTracks: tracks\n    }); // loop through available subtitle tracks and autoselect default if needed\n    // TODO: improve selection logic to handle forced, etc\n\n    tracks.forEach(function (track) {\n      if (track.default) {\n        // setting this.subtitleTrack will trigger internal logic\n        // if media has not been attached yet, it will fail\n        // we keep a reference to the default track id\n        // and we'll set subtitleTrack when onMediaAttached is triggered\n        if (_this3.media) {\n          _this3.subtitleTrack = track.id;\n        } else {\n          _this3.queuedDefaultTrack = track.id;\n        }\n      }\n    });\n  };\n\n  _proto.onSubtitleTrackLoaded = function onSubtitleTrackLoaded(data) {\n    var _this4 = this;\n\n    var id = data.id,\n        details = data.details;\n    var trackId = this.trackId,\n        tracks = this.tracks;\n    var currentTrack = tracks[trackId];\n\n    if (id >= tracks.length || id !== trackId || !currentTrack || this.stopped) {\n      this._clearReloadTimer();\n\n      return;\n    }\n\n    logger[\"logger\"].log(\"subtitle track \" + id + \" loaded\");\n\n    if (details.live) {\n      var reloadInterval = computeReloadInterval(currentTrack.details, details, data.stats.trequest);\n      logger[\"logger\"].log(\"Reloading live subtitle playlist in \" + reloadInterval + \"ms\");\n      this.timer = setTimeout(function () {\n        _this4._loadCurrentTrack();\n      }, reloadInterval);\n    } else {\n      this._clearReloadTimer();\n    }\n  };\n\n  _proto.startLoad = function startLoad() {\n    this.stopped = false;\n\n    this._loadCurrentTrack();\n  };\n\n  _proto.stopLoad = function stopLoad() {\n    this.stopped = true;\n\n    this._clearReloadTimer();\n  }\n  /** get alternate subtitle tracks list from playlist **/\n  ;\n\n  _proto._clearReloadTimer = function _clearReloadTimer() {\n    if (this.timer) {\n      clearTimeout(this.timer);\n      this.timer = null;\n    }\n  };\n\n  _proto._loadCurrentTrack = function _loadCurrentTrack() {\n    var trackId = this.trackId,\n        tracks = this.tracks,\n        hls = this.hls;\n    var currentTrack = tracks[trackId];\n\n    if (trackId < 0 || !currentTrack || currentTrack.details && !currentTrack.details.live) {\n      return;\n    }\n\n    logger[\"logger\"].log(\"Loading subtitle track \" + trackId);\n    hls.trigger(events[\"default\"].SUBTITLE_TRACK_LOADING, {\n      url: currentTrack.url,\n      id: trackId\n    });\n  }\n  /**\n   * Disables the old subtitleTrack and sets current mode on the next subtitleTrack.\n   * This operates on the DOM textTracks.\n   * A value of -1 will disable all subtitle tracks.\n   * @param newId - The id of the next track to enable\n   * @private\n   */\n  ;\n\n  _proto._toggleTrackModes = function _toggleTrackModes(newId) {\n    var media = this.media,\n        subtitleDisplay = this.subtitleDisplay,\n        trackId = this.trackId;\n\n    if (!media) {\n      return;\n    }\n\n    var textTracks = filterSubtitleTracks(media.textTracks);\n\n    if (newId === -1) {\n      [].slice.call(textTracks).forEach(function (track) {\n        track.mode = 'disabled';\n      });\n    } else {\n      var oldTrack = textTracks[trackId];\n\n      if (oldTrack) {\n        oldTrack.mode = 'disabled';\n      }\n    }\n\n    var nextTrack = textTracks[newId];\n\n    if (nextTrack) {\n      nextTrack.mode = subtitleDisplay ? 'showing' : 'hidden';\n    }\n  }\n  /**\n     * This method is responsible for validating the subtitle index and periodically reloading if live.\n     * Dispatches the SUBTITLE_TRACK_SWITCH event, which instructs the subtitle-stream-controller to load the selected track.\n     * @param newId - The id of the subtitle track to activate.\n     */\n  ;\n\n  _proto._setSubtitleTrackInternal = function _setSubtitleTrackInternal(newId) {\n    var hls = this.hls,\n        tracks = this.tracks;\n\n    if (!Object(number_isFinite[\"isFiniteNumber\"])(newId) || newId < -1 || newId >= tracks.length) {\n      return;\n    }\n\n    this.trackId = newId;\n    logger[\"logger\"].log(\"Switching to subtitle track \" + newId);\n    hls.trigger(events[\"default\"].SUBTITLE_TRACK_SWITCH, {\n      id: newId\n    });\n\n    this._loadCurrentTrack();\n  };\n\n  _proto._onTextTracksChanged = function _onTextTracksChanged() {\n    // Media is undefined when switching streams via loadSource()\n    if (!this.media || !this.hls.config.renderTextTracksNatively) {\n      return;\n    }\n\n    var trackId = -1;\n    var tracks = filterSubtitleTracks(this.media.textTracks);\n\n    for (var id = 0; id < tracks.length; id++) {\n      if (tracks[id].mode === 'hidden') {\n        // Do not break in case there is a following track with showing.\n        trackId = id;\n      } else if (tracks[id].mode === 'showing') {\n        trackId = id;\n        break;\n      }\n    } // Setting current subtitleTrack will invoke code.\n\n\n    this.subtitleTrack = trackId;\n  };\n\n  subtitle_track_controller_createClass(SubtitleTrackController, [{\n    key: \"subtitleTracks\",\n    get: function get() {\n      return this.tracks;\n    }\n    /** get index of the selected subtitle track (index in subtitle track lists) **/\n\n  }, {\n    key: \"subtitleTrack\",\n    get: function get() {\n      return this.trackId;\n    }\n    /** select a subtitle track, based on its index in subtitle track lists**/\n    ,\n    set: function set(subtitleTrackId) {\n      if (this.trackId !== subtitleTrackId) {\n        this._toggleTrackModes(subtitleTrackId);\n\n        this._setSubtitleTrackInternal(subtitleTrackId);\n      }\n    }\n  }]);\n\n  return SubtitleTrackController;\n}(event_handler);\n\nfunction filterSubtitleTracks(textTrackList) {\n  var tracks = [];\n\n  for (var i = 0; i < textTrackList.length; i++) {\n    var track = textTrackList[i]; // Edge adds a track without a label; we don't want to use it\n\n    if (track.kind === 'subtitles' && track.label) {\n      tracks.push(textTrackList[i]);\n    }\n  }\n\n  return tracks;\n}\n\n/* harmony default export */ var subtitle_track_controller = (subtitle_track_controller_SubtitleTrackController);\n// EXTERNAL MODULE: ./src/crypt/decrypter.js + 3 modules\nvar decrypter = __webpack_require__(\"./src/crypt/decrypter.js\");\n\n// CONCATENATED MODULE: ./src/controller/subtitle-stream-controller.js\nfunction subtitle_stream_controller_assertThisInitialized(self) { if (self === void 0) { throw new ReferenceError(\"this hasn't been initialised - super() hasn't been called\"); } return self; }\n\nfunction subtitle_stream_controller_inheritsLoose(subClass, superClass) { subClass.prototype = Object.create(superClass.prototype); subClass.prototype.constructor = subClass; subClass.__proto__ = superClass; }\n\n/**\n * @class SubtitleStreamController\n */\n\n\n\n\n\n\n\n\nvar subtitle_stream_controller_window = window,\n    subtitle_stream_controller_performance = subtitle_stream_controller_window.performance;\nvar subtitle_stream_controller_TICK_INTERVAL = 500; // how often to tick in ms\n\nvar subtitle_stream_controller_SubtitleStreamController = /*#__PURE__*/function (_BaseStreamController) {\n  subtitle_stream_controller_inheritsLoose(SubtitleStreamController, _BaseStreamController);\n\n  function SubtitleStreamController(hls, fragmentTracker) {\n    var _this;\n\n    _this = _BaseStreamController.call(this, hls, events[\"default\"].MEDIA_ATTACHED, events[\"default\"].MEDIA_DETACHING, events[\"default\"].ERROR, events[\"default\"].KEY_LOADED, events[\"default\"].FRAG_LOADED, events[\"default\"].SUBTITLE_TRACKS_UPDATED, events[\"default\"].SUBTITLE_TRACK_SWITCH, events[\"default\"].SUBTITLE_TRACK_LOADED, events[\"default\"].SUBTITLE_FRAG_PROCESSED, events[\"default\"].LEVEL_UPDATED) || this;\n    _this.fragmentTracker = fragmentTracker;\n    _this.config = hls.config;\n    _this.state = State.STOPPED;\n    _this.tracks = [];\n    _this.tracksBuffered = [];\n    _this.currentTrackId = -1;\n    _this.decrypter = new decrypter[\"default\"](hls, hls.config); // lastAVStart stores the time in seconds for the start time of a level load\n\n    _this.lastAVStart = 0;\n    _this._onMediaSeeking = _this.onMediaSeeking.bind(subtitle_stream_controller_assertThisInitialized(_this));\n    return _this;\n  }\n\n  var _proto = SubtitleStreamController.prototype;\n\n  _proto.onSubtitleFragProcessed = function onSubtitleFragProcessed(data) {\n    var frag = data.frag,\n        success = data.success;\n    this.fragPrevious = frag;\n    this.state = State.IDLE;\n\n    if (!success) {\n      return;\n    }\n\n    var buffered = this.tracksBuffered[this.currentTrackId];\n\n    if (!buffered) {\n      return;\n    } // Create/update a buffered array matching the interface used by BufferHelper.bufferedInfo\n    // so we can re-use the logic used to detect how much have been buffered\n\n\n    var timeRange;\n    var fragStart = frag.start;\n\n    for (var i = 0; i < buffered.length; i++) {\n      if (fragStart >= buffered[i].start && fragStart <= buffered[i].end) {\n        timeRange = buffered[i];\n        break;\n      }\n    }\n\n    var fragEnd = frag.start + frag.duration;\n\n    if (timeRange) {\n      timeRange.end = fragEnd;\n    } else {\n      timeRange = {\n        start: fragStart,\n        end: fragEnd\n      };\n      buffered.push(timeRange);\n    }\n  };\n\n  _proto.onMediaAttached = function onMediaAttached(_ref) {\n    var media = _ref.media;\n    this.media = media;\n    media.addEventListener('seeking', this._onMediaSeeking);\n    this.state = State.IDLE;\n  };\n\n  _proto.onMediaDetaching = function onMediaDetaching() {\n    var _this2 = this;\n\n    if (!this.media) {\n      return;\n    }\n\n    this.media.removeEventListener('seeking', this._onMediaSeeking);\n    this.fragmentTracker.removeAllFragments();\n    this.currentTrackId = -1;\n    this.tracks.forEach(function (track) {\n      _this2.tracksBuffered[track.id] = [];\n    });\n    this.media = null;\n    this.state = State.STOPPED;\n  } // If something goes wrong, proceed to next frag, if we were processing one.\n  ;\n\n  _proto.onError = function onError(data) {\n    var frag = data.frag; // don't handle error not related to subtitle fragment\n\n    if (!frag || frag.type !== 'subtitle') {\n      return;\n    }\n\n    this.state = State.IDLE;\n  } // Got all new subtitle tracks.\n  ;\n\n  _proto.onSubtitleTracksUpdated = function onSubtitleTracksUpdated(data) {\n    var _this3 = this;\n\n    logger[\"logger\"].log('subtitle tracks updated');\n    this.tracksBuffered = [];\n    this.tracks = data.subtitleTracks;\n    this.tracks.forEach(function (track) {\n      _this3.tracksBuffered[track.id] = [];\n    });\n  };\n\n  _proto.onSubtitleTrackSwitch = function onSubtitleTrackSwitch(data) {\n    this.currentTrackId = data.id;\n\n    if (!this.tracks || !this.tracks.length || this.currentTrackId === -1) {\n      this.clearInterval();\n      return;\n    } // Check if track has the necessary details to load fragments\n\n\n    var currentTrack = this.tracks[this.currentTrackId];\n\n    if (currentTrack && currentTrack.details) {\n      this.setInterval(subtitle_stream_controller_TICK_INTERVAL);\n    }\n  } // Got a new set of subtitle fragments.\n  ;\n\n  _proto.onSubtitleTrackLoaded = function onSubtitleTrackLoaded(data) {\n    var id = data.id,\n        details = data.details;\n    var currentTrackId = this.currentTrackId,\n        tracks = this.tracks;\n    var currentTrack = tracks[currentTrackId];\n\n    if (id >= tracks.length || id !== currentTrackId || !currentTrack) {\n      return;\n    }\n\n    if (details.live) {\n      mergeSubtitlePlaylists(currentTrack.details, details, this.lastAVStart);\n    }\n\n    currentTrack.details = details;\n    this.setInterval(subtitle_stream_controller_TICK_INTERVAL);\n  };\n\n  _proto.onKeyLoaded = function onKeyLoaded() {\n    if (this.state === State.KEY_LOADING) {\n      this.state = State.IDLE;\n    }\n  };\n\n  _proto.onFragLoaded = function onFragLoaded(data) {\n    var fragCurrent = this.fragCurrent;\n    var decryptData = data.frag.decryptdata;\n    var fragLoaded = data.frag;\n    var hls = this.hls;\n\n    if (this.state === State.FRAG_LOADING && fragCurrent && data.frag.type === 'subtitle' && fragCurrent.sn === data.frag.sn) {\n      // check to see if the payload needs to be decrypted\n      if (data.payload.byteLength > 0 && decryptData && decryptData.key && decryptData.method === 'AES-128') {\n        var startTime = subtitle_stream_controller_performance.now(); // decrypt the subtitles\n\n        this.decrypter.decrypt(data.payload, decryptData.key.buffer, decryptData.iv.buffer, function (decryptedData) {\n          var endTime = subtitle_stream_controller_performance.now();\n          hls.trigger(events[\"default\"].FRAG_DECRYPTED, {\n            frag: fragLoaded,\n            payload: decryptedData,\n            stats: {\n              tstart: startTime,\n              tdecrypt: endTime\n            }\n          });\n        });\n      }\n    }\n  };\n\n  _proto.onLevelUpdated = function onLevelUpdated(_ref2) {\n    var details = _ref2.details;\n    var frags = details.fragments;\n    this.lastAVStart = frags.length ? frags[0].start : 0;\n  };\n\n  _proto.doTick = function doTick() {\n    if (!this.media) {\n      this.state = State.IDLE;\n      return;\n    }\n\n    switch (this.state) {\n      case State.IDLE:\n        {\n          var config = this.config,\n              currentTrackId = this.currentTrackId,\n              fragmentTracker = this.fragmentTracker,\n              media = this.media,\n              tracks = this.tracks;\n\n          if (!tracks || !tracks[currentTrackId] || !tracks[currentTrackId].details) {\n            break;\n          }\n\n          var maxBufferHole = config.maxBufferHole,\n              maxFragLookUpTolerance = config.maxFragLookUpTolerance;\n          var maxConfigBuffer = Math.min(config.maxBufferLength, config.maxMaxBufferLength);\n          var bufferedInfo = BufferHelper.bufferedInfo(this._getBuffered(), media.currentTime, maxBufferHole);\n          var bufferEnd = bufferedInfo.end,\n              bufferLen = bufferedInfo.len;\n          var trackDetails = tracks[currentTrackId].details;\n          var fragments = trackDetails.fragments;\n          var fragLen = fragments.length;\n          var end = fragments[fragLen - 1].start + fragments[fragLen - 1].duration;\n\n          if (bufferLen > maxConfigBuffer) {\n            return;\n          }\n\n          var foundFrag;\n          var fragPrevious = this.fragPrevious;\n\n          if (bufferEnd < end) {\n            if (fragPrevious && trackDetails.hasProgramDateTime) {\n              foundFrag = findFragmentByPDT(fragments, fragPrevious.endProgramDateTime, maxFragLookUpTolerance);\n            }\n\n            if (!foundFrag) {\n              foundFrag = findFragmentByPTS(fragPrevious, fragments, bufferEnd, maxFragLookUpTolerance);\n            }\n          } else {\n            foundFrag = fragments[fragLen - 1];\n          }\n\n          if (foundFrag && foundFrag.encrypted) {\n            logger[\"logger\"].log(\"Loading key for \" + foundFrag.sn);\n            this.state = State.KEY_LOADING;\n            this.hls.trigger(events[\"default\"].KEY_LOADING, {\n              frag: foundFrag\n            });\n          } else if (foundFrag && fragmentTracker.getState(foundFrag) === FragmentState.NOT_LOADED) {\n            // only load if fragment is not loaded\n            this.fragCurrent = foundFrag;\n            this.state = State.FRAG_LOADING;\n            this.hls.trigger(events[\"default\"].FRAG_LOADING, {\n              frag: foundFrag\n            });\n          }\n        }\n    }\n  };\n\n  _proto.stopLoad = function stopLoad() {\n    this.lastAVStart = 0;\n\n    _BaseStreamController.prototype.stopLoad.call(this);\n  };\n\n  _proto._getBuffered = function _getBuffered() {\n    return this.tracksBuffered[this.currentTrackId] || [];\n  };\n\n  _proto.onMediaSeeking = function onMediaSeeking() {\n    this.fragPrevious = null;\n  };\n\n  return SubtitleStreamController;\n}(base_stream_controller_BaseStreamController);\n// CONCATENATED MODULE: ./src/utils/mediakeys-helper.ts\n/**\n * @see https://developer.mozilla.org/en-US/docs/Web/API/Navigator/requestMediaKeySystemAccess\n */\nvar KeySystems;\n\n(function (KeySystems) {\n  KeySystems[\"WIDEVINE\"] = \"com.widevine.alpha\";\n  KeySystems[\"PLAYREADY\"] = \"com.microsoft.playready\";\n})(KeySystems || (KeySystems = {}));\n\nvar requestMediaKeySystemAccess = function () {\n  if (typeof window !== 'undefined' && window.navigator && window.navigator.requestMediaKeySystemAccess) {\n    return window.navigator.requestMediaKeySystemAccess.bind(window.navigator);\n  } else {\n    return null;\n  }\n}();\n\n\n// CONCATENATED MODULE: ./src/controller/eme-controller.ts\nfunction eme_controller_defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if (\"value\" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }\n\nfunction eme_controller_createClass(Constructor, protoProps, staticProps) { if (protoProps) eme_controller_defineProperties(Constructor.prototype, protoProps); if (staticProps) eme_controller_defineProperties(Constructor, staticProps); return Constructor; }\n\nfunction eme_controller_inheritsLoose(subClass, superClass) { subClass.prototype = Object.create(superClass.prototype); subClass.prototype.constructor = subClass; subClass.__proto__ = superClass; }\n\n/**\n * @author Stephan Hesse <disparat@gmail.com> | <tchakabam@gmail.com>\n *\n * DRM support for Hls.js\n */\n\n\n\n\n\nvar MAX_LICENSE_REQUEST_FAILURES = 3;\n/**\n * @see https://developer.mozilla.org/en-US/docs/Web/API/MediaKeySystemConfiguration\n * @param {Array<string>} audioCodecs List of required audio codecs to support\n * @param {Array<string>} videoCodecs List of required video codecs to support\n * @param {object} drmSystemOptions Optional parameters/requirements for the key-system\n * @returns {Array<MediaSystemConfiguration>} An array of supported configurations\n */\n\nvar createWidevineMediaKeySystemConfigurations = function createWidevineMediaKeySystemConfigurations(audioCodecs, videoCodecs, drmSystemOptions) {\n  /* jshint ignore:line */\n  var baseConfig = {\n    // initDataTypes: ['keyids', 'mp4'],\n    // label: \"\",\n    // persistentState: \"not-allowed\", // or \"required\" ?\n    // distinctiveIdentifier: \"not-allowed\", // or \"required\" ?\n    // sessionTypes: ['temporary'],\n    audioCapabilities: [],\n    // { contentType: 'audio/mp4; codecs=\"mp4a.40.2\"' }\n    videoCapabilities: [] // { contentType: 'video/mp4; codecs=\"avc1.42E01E\"' }\n\n  };\n  audioCodecs.forEach(function (codec) {\n    baseConfig.audioCapabilities.push({\n      contentType: \"audio/mp4; codecs=\\\"\" + codec + \"\\\"\",\n      robustness: drmSystemOptions.audioRobustness || ''\n    });\n  });\n  videoCodecs.forEach(function (codec) {\n    baseConfig.videoCapabilities.push({\n      contentType: \"video/mp4; codecs=\\\"\" + codec + \"\\\"\",\n      robustness: drmSystemOptions.videoRobustness || ''\n    });\n  });\n  return [baseConfig];\n};\n/**\n * The idea here is to handle key-system (and their respective platforms) specific configuration differences\n * in order to work with the local requestMediaKeySystemAccess method.\n *\n * We can also rule-out platform-related key-system support at this point by throwing an error.\n *\n * @param {string} keySystem Identifier for the key-system, see `KeySystems` enum\n * @param {Array<string>} audioCodecs List of required audio codecs to support\n * @param {Array<string>} videoCodecs List of required video codecs to support\n * @throws will throw an error if a unknown key system is passed\n * @returns {Array<MediaSystemConfiguration>} A non-empty Array of MediaKeySystemConfiguration objects\n */\n\n\nvar eme_controller_getSupportedMediaKeySystemConfigurations = function getSupportedMediaKeySystemConfigurations(keySystem, audioCodecs, videoCodecs, drmSystemOptions) {\n  switch (keySystem) {\n    case KeySystems.WIDEVINE:\n      return createWidevineMediaKeySystemConfigurations(audioCodecs, videoCodecs, drmSystemOptions);\n\n    default:\n      throw new Error(\"Unknown key-system: \" + keySystem);\n  }\n};\n\n/**\n * Controller to deal with encrypted media extensions (EME)\n * @see https://developer.mozilla.org/en-US/docs/Web/API/Encrypted_Media_Extensions_API\n *\n * @class\n * @constructor\n */\nvar eme_controller_EMEController = /*#__PURE__*/function (_EventHandler) {\n  eme_controller_inheritsLoose(EMEController, _EventHandler);\n\n  /**\n     * @constructs\n     * @param {Hls} hls Our Hls.js instance\n     */\n  function EMEController(hls) {\n    var _this;\n\n    _this = _EventHandler.call(this, hls, events[\"default\"].MEDIA_ATTACHED, events[\"default\"].MEDIA_DETACHED, events[\"default\"].MANIFEST_PARSED) || this;\n    _this._widevineLicenseUrl = void 0;\n    _this._licenseXhrSetup = void 0;\n    _this._emeEnabled = void 0;\n    _this._requestMediaKeySystemAccess = void 0;\n    _this._drmSystemOptions = void 0;\n    _this._config = void 0;\n    _this._mediaKeysList = [];\n    _this._media = null;\n    _this._hasSetMediaKeys = false;\n    _this._requestLicenseFailureCount = 0;\n    _this.mediaKeysPromise = null;\n\n    _this._onMediaEncrypted = function (e) {\n      logger[\"logger\"].log(\"Media is encrypted using \\\"\" + e.initDataType + \"\\\" init data type\");\n\n      if (!_this.mediaKeysPromise) {\n        logger[\"logger\"].error('Fatal: Media is encrypted but no CDM access or no keys have been requested');\n\n        _this.hls.trigger(events[\"default\"].ERROR, {\n          type: errors[\"ErrorTypes\"].KEY_SYSTEM_ERROR,\n          details: errors[\"ErrorDetails\"].KEY_SYSTEM_NO_KEYS,\n          fatal: true\n        });\n\n        return;\n      }\n\n      var finallySetKeyAndStartSession = function finallySetKeyAndStartSession(mediaKeys) {\n        if (!_this._media) {\n          return;\n        }\n\n        _this._attemptSetMediaKeys(mediaKeys);\n\n        _this._generateRequestWithPreferredKeySession(e.initDataType, e.initData);\n      }; // Could use `Promise.finally` but some Promise polyfills are missing it\n\n\n      _this.mediaKeysPromise.then(finallySetKeyAndStartSession).catch(finallySetKeyAndStartSession);\n    };\n\n    _this._config = hls.config;\n    _this._widevineLicenseUrl = _this._config.widevineLicenseUrl;\n    _this._licenseXhrSetup = _this._config.licenseXhrSetup;\n    _this._emeEnabled = _this._config.emeEnabled;\n    _this._requestMediaKeySystemAccess = _this._config.requestMediaKeySystemAccessFunc;\n    _this._drmSystemOptions = hls.config.drmSystemOptions;\n    return _this;\n  }\n  /**\n   * @param {string} keySystem Identifier for the key-system, see `KeySystems` enum\n   * @returns {string} License server URL for key-system (if any configured, otherwise causes error)\n   * @throws if a unsupported keysystem is passed\n   */\n\n\n  var _proto = EMEController.prototype;\n\n  _proto.getLicenseServerUrl = function getLicenseServerUrl(keySystem) {\n    switch (keySystem) {\n      case KeySystems.WIDEVINE:\n        if (!this._widevineLicenseUrl) {\n          break;\n        }\n\n        return this._widevineLicenseUrl;\n    }\n\n    throw new Error(\"no license server URL configured for key-system \\\"\" + keySystem + \"\\\"\");\n  }\n  /**\n     * Requests access object and adds it to our list upon success\n     * @private\n     * @param {string} keySystem System ID (see `KeySystems`)\n     * @param {Array<string>} audioCodecs List of required audio codecs to support\n     * @param {Array<string>} videoCodecs List of required video codecs to support\n     * @throws When a unsupported KeySystem is passed\n     */\n  ;\n\n  _proto._attemptKeySystemAccess = function _attemptKeySystemAccess(keySystem, audioCodecs, videoCodecs) {\n    var _this2 = this;\n\n    // This can throw, but is caught in event handler callpath\n    var mediaKeySystemConfigs = eme_controller_getSupportedMediaKeySystemConfigurations(keySystem, audioCodecs, videoCodecs, this._drmSystemOptions);\n    logger[\"logger\"].log('Requesting encrypted media key-system access'); // expecting interface like window.navigator.requestMediaKeySystemAccess\n\n    var keySystemAccessPromise = this.requestMediaKeySystemAccess(keySystem, mediaKeySystemConfigs);\n    this.mediaKeysPromise = keySystemAccessPromise.then(function (mediaKeySystemAccess) {\n      return _this2._onMediaKeySystemAccessObtained(keySystem, mediaKeySystemAccess);\n    });\n    keySystemAccessPromise.catch(function (err) {\n      logger[\"logger\"].error(\"Failed to obtain key-system \\\"\" + keySystem + \"\\\" access:\", err);\n    });\n  };\n\n  /**\n     * Handles obtaining access to a key-system\n     * @private\n     * @param {string} keySystem\n     * @param {MediaKeySystemAccess} mediaKeySystemAccess https://developer.mozilla.org/en-US/docs/Web/API/MediaKeySystemAccess\n     */\n  _proto._onMediaKeySystemAccessObtained = function _onMediaKeySystemAccessObtained(keySystem, mediaKeySystemAccess) {\n    var _this3 = this;\n\n    logger[\"logger\"].log(\"Access for key-system \\\"\" + keySystem + \"\\\" obtained\");\n    var mediaKeysListItem = {\n      mediaKeysSessionInitialized: false,\n      mediaKeySystemAccess: mediaKeySystemAccess,\n      mediaKeySystemDomain: keySystem\n    };\n\n    this._mediaKeysList.push(mediaKeysListItem);\n\n    var mediaKeysPromise = Promise.resolve().then(function () {\n      return mediaKeySystemAccess.createMediaKeys();\n    }).then(function (mediaKeys) {\n      mediaKeysListItem.mediaKeys = mediaKeys;\n      logger[\"logger\"].log(\"Media-keys created for key-system \\\"\" + keySystem + \"\\\"\");\n\n      _this3._onMediaKeysCreated();\n\n      return mediaKeys;\n    });\n    mediaKeysPromise.catch(function (err) {\n      logger[\"logger\"].error('Failed to create media-keys:', err);\n    });\n    return mediaKeysPromise;\n  }\n  /**\n   * Handles key-creation (represents access to CDM). We are going to create key-sessions upon this\n   * for all existing keys where no session exists yet.\n   *\n   * @private\n   */\n  ;\n\n  _proto._onMediaKeysCreated = function _onMediaKeysCreated() {\n    var _this4 = this;\n\n    // check for all key-list items if a session exists, otherwise, create one\n    this._mediaKeysList.forEach(function (mediaKeysListItem) {\n      if (!mediaKeysListItem.mediaKeysSession) {\n        // mediaKeys is definitely initialized here\n        mediaKeysListItem.mediaKeysSession = mediaKeysListItem.mediaKeys.createSession();\n\n        _this4._onNewMediaKeySession(mediaKeysListItem.mediaKeysSession);\n      }\n    });\n  }\n  /**\n     * @private\n     * @param {*} keySession\n     */\n  ;\n\n  _proto._onNewMediaKeySession = function _onNewMediaKeySession(keySession) {\n    var _this5 = this;\n\n    logger[\"logger\"].log(\"New key-system session \" + keySession.sessionId);\n    keySession.addEventListener('message', function (event) {\n      _this5._onKeySessionMessage(keySession, event.message);\n    }, false);\n  }\n  /**\n   * @private\n   * @param {MediaKeySession} keySession\n   * @param {ArrayBuffer} message\n   */\n  ;\n\n  _proto._onKeySessionMessage = function _onKeySessionMessage(keySession, message) {\n    logger[\"logger\"].log('Got EME message event, creating license request');\n\n    this._requestLicense(message, function (data) {\n      logger[\"logger\"].log(\"Received license data (length: \" + (data ? data.byteLength : data) + \"), updating key-session\");\n      keySession.update(data);\n    });\n  }\n  /**\n   * @private\n   * @param e {MediaEncryptedEvent}\n   */\n  ;\n\n  /**\n   * @private\n   */\n  _proto._attemptSetMediaKeys = function _attemptSetMediaKeys(mediaKeys) {\n    if (!this._media) {\n      throw new Error('Attempted to set mediaKeys without first attaching a media element');\n    }\n\n    if (!this._hasSetMediaKeys) {\n      // FIXME: see if we can/want/need-to really to deal with several potential key-sessions?\n      var keysListItem = this._mediaKeysList[0];\n\n      if (!keysListItem || !keysListItem.mediaKeys) {\n        logger[\"logger\"].error('Fatal: Media is encrypted but no CDM access or no keys have been obtained yet');\n        this.hls.trigger(events[\"default\"].ERROR, {\n          type: errors[\"ErrorTypes\"].KEY_SYSTEM_ERROR,\n          details: errors[\"ErrorDetails\"].KEY_SYSTEM_NO_KEYS,\n          fatal: true\n        });\n        return;\n      }\n\n      logger[\"logger\"].log('Setting keys for encrypted media');\n\n      this._media.setMediaKeys(keysListItem.mediaKeys);\n\n      this._hasSetMediaKeys = true;\n    }\n  }\n  /**\n   * @private\n   */\n  ;\n\n  _proto._generateRequestWithPreferredKeySession = function _generateRequestWithPreferredKeySession(initDataType, initData) {\n    var _this6 = this;\n\n    // FIXME: see if we can/want/need-to really to deal with several potential key-sessions?\n    var keysListItem = this._mediaKeysList[0];\n\n    if (!keysListItem) {\n      logger[\"logger\"].error('Fatal: Media is encrypted but not any key-system access has been obtained yet');\n      this.hls.trigger(events[\"default\"].ERROR, {\n        type: errors[\"ErrorTypes\"].KEY_SYSTEM_ERROR,\n        details: errors[\"ErrorDetails\"].KEY_SYSTEM_NO_ACCESS,\n        fatal: true\n      });\n      return;\n    }\n\n    if (keysListItem.mediaKeysSessionInitialized) {\n      logger[\"logger\"].warn('Key-Session already initialized but requested again');\n      return;\n    }\n\n    var keySession = keysListItem.mediaKeysSession;\n\n    if (!keySession) {\n      logger[\"logger\"].error('Fatal: Media is encrypted but no key-session existing');\n      this.hls.trigger(events[\"default\"].ERROR, {\n        type: errors[\"ErrorTypes\"].KEY_SYSTEM_ERROR,\n        details: errors[\"ErrorDetails\"].KEY_SYSTEM_NO_SESSION,\n        fatal: true\n      });\n      return;\n    } // initData is null if the media is not CORS-same-origin\n\n\n    if (!initData) {\n      logger[\"logger\"].warn('Fatal: initData required for generating a key session is null');\n      this.hls.trigger(events[\"default\"].ERROR, {\n        type: errors[\"ErrorTypes\"].KEY_SYSTEM_ERROR,\n        details: errors[\"ErrorDetails\"].KEY_SYSTEM_NO_INIT_DATA,\n        fatal: true\n      });\n      return;\n    }\n\n    logger[\"logger\"].log(\"Generating key-session request for \\\"\" + initDataType + \"\\\" init data type\");\n    keysListItem.mediaKeysSessionInitialized = true;\n    keySession.generateRequest(initDataType, initData).then(function () {\n      logger[\"logger\"].debug('Key-session generation succeeded');\n    }).catch(function (err) {\n      logger[\"logger\"].error('Error generating key-session request:', err);\n\n      _this6.hls.trigger(events[\"default\"].ERROR, {\n        type: errors[\"ErrorTypes\"].KEY_SYSTEM_ERROR,\n        details: errors[\"ErrorDetails\"].KEY_SYSTEM_NO_SESSION,\n        fatal: false\n      });\n    });\n  }\n  /**\n   * @private\n   * @param {string} url License server URL\n   * @param {ArrayBuffer} keyMessage Message data issued by key-system\n   * @param {function} callback Called when XHR has succeeded\n   * @returns {XMLHttpRequest} Unsent (but opened state) XHR object\n   * @throws if XMLHttpRequest construction failed\n   */\n  ;\n\n  _proto._createLicenseXhr = function _createLicenseXhr(url, keyMessage, callback) {\n    var xhr = new XMLHttpRequest();\n    var licenseXhrSetup = this._licenseXhrSetup;\n\n    try {\n      if (licenseXhrSetup) {\n        try {\n          licenseXhrSetup(xhr, url);\n        } catch (e) {\n          // let's try to open before running setup\n          xhr.open('POST', url, true);\n          licenseXhrSetup(xhr, url);\n        }\n      } // if licenseXhrSetup did not yet call open, let's do it now\n\n\n      if (!xhr.readyState) {\n        xhr.open('POST', url, true);\n      }\n    } catch (e) {\n      // IE11 throws an exception on xhr.open if attempting to access an HTTP resource over HTTPS\n      throw new Error(\"issue setting up KeySystem license XHR \" + e);\n    } // Because we set responseType to ArrayBuffer here, callback is typed as handling only array buffers\n\n\n    xhr.responseType = 'arraybuffer';\n    xhr.onreadystatechange = this._onLicenseRequestReadyStageChange.bind(this, xhr, url, keyMessage, callback);\n    return xhr;\n  }\n  /**\n   * @private\n   * @param {XMLHttpRequest} xhr\n   * @param {string} url License server URL\n   * @param {ArrayBuffer} keyMessage Message data issued by key-system\n   * @param {function} callback Called when XHR has succeeded\n   */\n  ;\n\n  _proto._onLicenseRequestReadyStageChange = function _onLicenseRequestReadyStageChange(xhr, url, keyMessage, callback) {\n    switch (xhr.readyState) {\n      case 4:\n        if (xhr.status === 200) {\n          this._requestLicenseFailureCount = 0;\n          logger[\"logger\"].log('License request succeeded');\n\n          if (xhr.responseType !== 'arraybuffer') {\n            logger[\"logger\"].warn('xhr response type was not set to the expected arraybuffer for license request');\n          }\n\n          callback(xhr.response);\n        } else {\n          logger[\"logger\"].error(\"License Request XHR failed (\" + url + \"). Status: \" + xhr.status + \" (\" + xhr.statusText + \")\");\n          this._requestLicenseFailureCount++;\n\n          if (this._requestLicenseFailureCount > MAX_LICENSE_REQUEST_FAILURES) {\n            this.hls.trigger(events[\"default\"].ERROR, {\n              type: errors[\"ErrorTypes\"].KEY_SYSTEM_ERROR,\n              details: errors[\"ErrorDetails\"].KEY_SYSTEM_LICENSE_REQUEST_FAILED,\n              fatal: true\n            });\n            return;\n          }\n\n          var attemptsLeft = MAX_LICENSE_REQUEST_FAILURES - this._requestLicenseFailureCount + 1;\n          logger[\"logger\"].warn(\"Retrying license request, \" + attemptsLeft + \" attempts left\");\n\n          this._requestLicense(keyMessage, callback);\n        }\n\n        break;\n    }\n  }\n  /**\n   * @private\n   * @param {MediaKeysListItem} keysListItem\n   * @param {ArrayBuffer} keyMessage\n   * @returns {ArrayBuffer} Challenge data posted to license server\n   * @throws if KeySystem is unsupported\n   */\n  ;\n\n  _proto._generateLicenseRequestChallenge = function _generateLicenseRequestChallenge(keysListItem, keyMessage) {\n    switch (keysListItem.mediaKeySystemDomain) {\n      // case KeySystems.PLAYREADY:\n      // from https://github.com/MicrosoftEdge/Demos/blob/master/eme/scripts/demo.js\n\n      /*\n        if (this.licenseType !== this.LICENSE_TYPE_WIDEVINE) {\n          // For PlayReady CDMs, we need to dig the Challenge out of the XML.\n          var keyMessageXml = new DOMParser().parseFromString(String.fromCharCode.apply(null, new Uint16Array(keyMessage)), 'application/xml');\n          if (keyMessageXml.getElementsByTagName('Challenge')[0]) {\n              challenge = atob(keyMessageXml.getElementsByTagName('Challenge')[0].childNodes[0].nodeValue);\n          } else {\n              throw 'Cannot find <Challenge> in key message';\n          }\n          var headerNames = keyMessageXml.getElementsByTagName('name');\n          var headerValues = keyMessageXml.getElementsByTagName('value');\n          if (headerNames.length !== headerValues.length) {\n              throw 'Mismatched header <name>/<value> pair in key message';\n          }\n          for (var i = 0; i < headerNames.length; i++) {\n              xhr.setRequestHeader(headerNames[i].childNodes[0].nodeValue, headerValues[i].childNodes[0].nodeValue);\n          }\n        }\n        break;\n      */\n      case KeySystems.WIDEVINE:\n        // For Widevine CDMs, the challenge is the keyMessage.\n        return keyMessage;\n    }\n\n    throw new Error(\"unsupported key-system: \" + keysListItem.mediaKeySystemDomain);\n  }\n  /**\n   * @private\n   * @param keyMessage\n   * @param callback\n   */\n  ;\n\n  _proto._requestLicense = function _requestLicense(keyMessage, callback) {\n    logger[\"logger\"].log('Requesting content license for key-system');\n    var keysListItem = this._mediaKeysList[0];\n\n    if (!keysListItem) {\n      logger[\"logger\"].error('Fatal error: Media is encrypted but no key-system access has been obtained yet');\n      this.hls.trigger(events[\"default\"].ERROR, {\n        type: errors[\"ErrorTypes\"].KEY_SYSTEM_ERROR,\n        details: errors[\"ErrorDetails\"].KEY_SYSTEM_NO_ACCESS,\n        fatal: true\n      });\n      return;\n    }\n\n    try {\n      var _url = this.getLicenseServerUrl(keysListItem.mediaKeySystemDomain);\n\n      var _xhr = this._createLicenseXhr(_url, keyMessage, callback);\n\n      logger[\"logger\"].log(\"Sending license request to URL: \" + _url);\n\n      var challenge = this._generateLicenseRequestChallenge(keysListItem, keyMessage);\n\n      _xhr.send(challenge);\n    } catch (e) {\n      logger[\"logger\"].error(\"Failure requesting DRM license: \" + e);\n      this.hls.trigger(events[\"default\"].ERROR, {\n        type: errors[\"ErrorTypes\"].KEY_SYSTEM_ERROR,\n        details: errors[\"ErrorDetails\"].KEY_SYSTEM_LICENSE_REQUEST_FAILED,\n        fatal: true\n      });\n    }\n  };\n\n  _proto.onMediaAttached = function onMediaAttached(data) {\n    if (!this._emeEnabled) {\n      return;\n    }\n\n    var media = data.media; // keep reference of media\n\n    this._media = media;\n    media.addEventListener('encrypted', this._onMediaEncrypted);\n  };\n\n  _proto.onMediaDetached = function onMediaDetached() {\n    var media = this._media;\n    var mediaKeysList = this._mediaKeysList;\n\n    if (!media) {\n      return;\n    }\n\n    media.removeEventListener('encrypted', this._onMediaEncrypted);\n    this._media = null;\n    this._mediaKeysList = []; // Close all sessions and remove media keys from the video element.\n\n    Promise.all(mediaKeysList.map(function (mediaKeysListItem) {\n      if (mediaKeysListItem.mediaKeysSession) {\n        return mediaKeysListItem.mediaKeysSession.close().catch(function () {// Ignore errors when closing the sessions. Closing a session that\n          // generated no key requests will throw an error.\n        });\n      }\n    })).then(function () {\n      return media.setMediaKeys(null);\n    }).catch(function () {// Ignore any failures while removing media keys from the video element.\n    });\n  } // TODO: Use manifest types here when they are defined\n  ;\n\n  _proto.onManifestParsed = function onManifestParsed(data) {\n    if (!this._emeEnabled) {\n      return;\n    }\n\n    var audioCodecs = data.levels.map(function (level) {\n      return level.audioCodec;\n    });\n    var videoCodecs = data.levels.map(function (level) {\n      return level.videoCodec;\n    });\n\n    this._attemptKeySystemAccess(KeySystems.WIDEVINE, audioCodecs, videoCodecs);\n  };\n\n  eme_controller_createClass(EMEController, [{\n    key: \"requestMediaKeySystemAccess\",\n    get: function get() {\n      if (!this._requestMediaKeySystemAccess) {\n        throw new Error('No requestMediaKeySystemAccess function configured');\n      }\n\n      return this._requestMediaKeySystemAccess;\n    }\n  }]);\n\n  return EMEController;\n}(event_handler);\n\n/* harmony default export */ var eme_controller = (eme_controller_EMEController);\n// CONCATENATED MODULE: ./src/config.ts\nfunction ownKeys(object, enumerableOnly) { var keys = Object.keys(object); if (Object.getOwnPropertySymbols) { var symbols = Object.getOwnPropertySymbols(object); if (enumerableOnly) symbols = symbols.filter(function (sym) { return Object.getOwnPropertyDescriptor(object, sym).enumerable; }); keys.push.apply(keys, symbols); } return keys; }\n\nfunction _objectSpread(target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i] != null ? arguments[i] : {}; if (i % 2) { ownKeys(Object(source), true).forEach(function (key) { _defineProperty(target, key, source[key]); }); } else if (Object.getOwnPropertyDescriptors) { Object.defineProperties(target, Object.getOwnPropertyDescriptors(source)); } else { ownKeys(Object(source)).forEach(function (key) { Object.defineProperty(target, key, Object.getOwnPropertyDescriptor(source, key)); }); } } return target; }\n\nfunction _defineProperty(obj, key, value) { if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }\n\n/**\n * HLS config\n */\n\n\n\n\n // import FetchLoader from './utils/fetch-loader';\n\n\n\n\n\n\n\n\n\n// If possible, keep hlsDefaultConfig shallow\n// It is cloned whenever a new Hls instance is created, by keeping the config\n// shallow the properties are cloned, and we don't end up manipulating the default\nvar hlsDefaultConfig = _objectSpread(_objectSpread({\n  autoStartLoad: true,\n  // used by stream-controller\n  startPosition: -1,\n  // used by stream-controller\n  defaultAudioCodec: void 0,\n  // used by stream-controller\n  debug: false,\n  // used by logger\n  capLevelOnFPSDrop: false,\n  // used by fps-controller\n  capLevelToPlayerSize: false,\n  // used by cap-level-controller\n  initialLiveManifestSize: 1,\n  // used by stream-controller\n  maxBufferLength: 30,\n  // used by stream-controller\n  maxBufferSize: 60 * 1000 * 1000,\n  // used by stream-controller\n  maxBufferHole: 0.5,\n  // used by stream-controller\n  lowBufferWatchdogPeriod: 0.5,\n  // used by stream-controller\n  highBufferWatchdogPeriod: 3,\n  // used by stream-controller\n  nudgeOffset: 0.1,\n  // used by stream-controller\n  nudgeMaxRetry: 3,\n  // used by stream-controller\n  maxFragLookUpTolerance: 0.25,\n  // used by stream-controller\n  liveSyncDurationCount: 3,\n  // used by stream-controller\n  liveMaxLatencyDurationCount: Infinity,\n  // used by stream-controller\n  liveSyncDuration: void 0,\n  // used by stream-controller\n  liveMaxLatencyDuration: void 0,\n  // used by stream-controller\n  liveDurationInfinity: false,\n  // used by buffer-controller\n  liveBackBufferLength: Infinity,\n  // used by buffer-controller\n  maxMaxBufferLength: 600,\n  // used by stream-controller\n  enableWorker: true,\n  // used by demuxer\n  enableSoftwareAES: true,\n  // used by decrypter\n  manifestLoadingTimeOut: 10000,\n  // used by playlist-loader\n  manifestLoadingMaxRetry: 1,\n  // used by playlist-loader\n  manifestLoadingRetryDelay: 1000,\n  // used by playlist-loader\n  manifestLoadingMaxRetryTimeout: 64000,\n  // used by playlist-loader\n  startLevel: void 0,\n  // used by level-controller\n  levelLoadingTimeOut: 10000,\n  // used by playlist-loader\n  levelLoadingMaxRetry: 4,\n  // used by playlist-loader\n  levelLoadingRetryDelay: 1000,\n  // used by playlist-loader\n  levelLoadingMaxRetryTimeout: 64000,\n  // used by playlist-loader\n  fragLoadingTimeOut: 20000,\n  // used by fragment-loader\n  fragLoadingMaxRetry: 6,\n  // used by fragment-loader\n  fragLoadingRetryDelay: 1000,\n  // used by fragment-loader\n  fragLoadingMaxRetryTimeout: 64000,\n  // used by fragment-loader\n  startFragPrefetch: false,\n  // used by stream-controller\n  fpsDroppedMonitoringPeriod: 5000,\n  // used by fps-controller\n  fpsDroppedMonitoringThreshold: 0.2,\n  // used by fps-controller\n  appendErrorMaxRetry: 3,\n  // used by buffer-controller\n  loader: xhr_loader,\n  // loader: FetchLoader,\n  fLoader: void 0,\n  // used by fragment-loader\n  pLoader: void 0,\n  // used by playlist-loader\n  xhrSetup: void 0,\n  // used by xhr-loader\n  licenseXhrSetup: void 0,\n  // used by eme-controller\n  // fetchSetup: void 0,\n  abrController: abr_controller,\n  bufferController: buffer_controller,\n  capLevelController: cap_level_controller,\n  fpsController: fps_controller,\n  stretchShortVideoTrack: false,\n  // used by mp4-remuxer\n  maxAudioFramesDrift: 1,\n  // used by mp4-remuxer\n  forceKeyFrameOnDiscontinuity: true,\n  // used by ts-demuxer\n  abrEwmaFastLive: 3,\n  // used by abr-controller\n  abrEwmaSlowLive: 9,\n  // used by abr-controller\n  abrEwmaFastVoD: 3,\n  // used by abr-controller\n  abrEwmaSlowVoD: 9,\n  // used by abr-controller\n  abrEwmaDefaultEstimate: 5e5,\n  // 500 kbps  // used by abr-controller\n  abrBandWidthFactor: 0.95,\n  // used by abr-controller\n  abrBandWidthUpFactor: 0.7,\n  // used by abr-controller\n  abrMaxWithRealBitrate: false,\n  // used by abr-controller\n  maxStarvationDelay: 4,\n  // used by abr-controller\n  maxLoadingDelay: 4,\n  // used by abr-controller\n  minAutoBitrate: 0,\n  // used by hls\n  emeEnabled: false,\n  // used by eme-controller\n  widevineLicenseUrl: void 0,\n  // used by eme-controller\n  drmSystemOptions: {},\n  // used by eme-controller\n  requestMediaKeySystemAccessFunc: requestMediaKeySystemAccess,\n  // used by eme-controller\n  testBandwidth: true\n}, timelineConfig()), {}, {\n  subtitleStreamController:  true ? subtitle_stream_controller_SubtitleStreamController : undefined,\n  subtitleTrackController:  true ? subtitle_track_controller : undefined,\n  timelineController:  true ? timeline_controller : undefined,\n  audioStreamController:  true ? audio_stream_controller : undefined,\n  audioTrackController:  true ? audio_track_controller : undefined,\n  emeController:  true ? eme_controller : undefined\n});\n\nfunction timelineConfig() {\n  return {\n    cueHandler: cues_namespaceObject,\n    // used by timeline-controller\n    enableCEA708Captions: true,\n    // used by timeline-controller\n    enableWebVTT: true,\n    // used by timeline-controller\n    captionsTextTrack1Label: 'English',\n    // used by timeline-controller\n    captionsTextTrack1LanguageCode: 'en',\n    // used by timeline-controller\n    captionsTextTrack2Label: 'Spanish',\n    // used by timeline-controller\n    captionsTextTrack2LanguageCode: 'es',\n    // used by timeline-controller\n    captionsTextTrack3Label: 'Unknown CC',\n    // used by timeline-controller\n    captionsTextTrack3LanguageCode: '',\n    // used by timeline-controller\n    captionsTextTrack4Label: 'Unknown CC',\n    // used by timeline-controller\n    captionsTextTrack4LanguageCode: '',\n    // used by timeline-controller\n    renderTextTracksNatively: true\n  };\n}\n// CONCATENATED MODULE: ./src/hls.ts\nfunction hls_ownKeys(object, enumerableOnly) { var keys = Object.keys(object); if (Object.getOwnPropertySymbols) { var symbols = Object.getOwnPropertySymbols(object); if (enumerableOnly) symbols = symbols.filter(function (sym) { return Object.getOwnPropertyDescriptor(object, sym).enumerable; }); keys.push.apply(keys, symbols); } return keys; }\n\nfunction hls_objectSpread(target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i] != null ? arguments[i] : {}; if (i % 2) { hls_ownKeys(Object(source), true).forEach(function (key) { hls_defineProperty(target, key, source[key]); }); } else if (Object.getOwnPropertyDescriptors) { Object.defineProperties(target, Object.getOwnPropertyDescriptors(source)); } else { hls_ownKeys(Object(source)).forEach(function (key) { Object.defineProperty(target, key, Object.getOwnPropertyDescriptor(source, key)); }); } } return target; }\n\nfunction hls_defineProperty(obj, key, value) { if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }\n\nfunction hls_assertThisInitialized(self) { if (self === void 0) { throw new ReferenceError(\"this hasn't been initialised - super() hasn't been called\"); } return self; }\n\nfunction hls_defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if (\"value\" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }\n\nfunction hls_createClass(Constructor, protoProps, staticProps) { if (protoProps) hls_defineProperties(Constructor.prototype, protoProps); if (staticProps) hls_defineProperties(Constructor, staticProps); return Constructor; }\n\nfunction hls_inheritsLoose(subClass, superClass) { subClass.prototype = Object.create(superClass.prototype); subClass.prototype.constructor = subClass; subClass.__proto__ = superClass; }\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n/**\n * @module Hls\n * @class\n * @constructor\n */\n\nvar hls_Hls = /*#__PURE__*/function (_Observer) {\n  hls_inheritsLoose(Hls, _Observer);\n\n  /**\n   * @type {boolean}\n   */\n  Hls.isSupported = function isSupported() {\n    return is_supported_isSupported();\n  }\n  /**\n   * @type {HlsEvents}\n   */\n  ;\n\n  hls_createClass(Hls, null, [{\n    key: \"version\",\n\n    /**\n     * @type {string}\n     */\n    get: function get() {\n      return \"0.14.1\";\n    }\n  }, {\n    key: \"Events\",\n    get: function get() {\n      return events[\"default\"];\n    }\n    /**\n     * @type {HlsErrorTypes}\n     */\n\n  }, {\n    key: \"ErrorTypes\",\n    get: function get() {\n      return errors[\"ErrorTypes\"];\n    }\n    /**\n     * @type {HlsErrorDetails}\n     */\n\n  }, {\n    key: \"ErrorDetails\",\n    get: function get() {\n      return errors[\"ErrorDetails\"];\n    }\n    /**\n     * @type {HlsConfig}\n     */\n\n  }, {\n    key: \"DefaultConfig\",\n    get: function get() {\n      if (!Hls.defaultConfig) {\n        return hlsDefaultConfig;\n      }\n\n      return Hls.defaultConfig;\n    }\n    /**\n     * @type {HlsConfig}\n     */\n    ,\n    set: function set(defaultConfig) {\n      Hls.defaultConfig = defaultConfig;\n    }\n    /**\n     * Creates an instance of an HLS client that can attach to exactly one `HTMLMediaElement`.\n     *\n     * @constructs Hls\n     * @param {HlsConfig} config\n     */\n\n  }]);\n\n  function Hls(userConfig) {\n    var _this;\n\n    if (userConfig === void 0) {\n      userConfig = {};\n    }\n\n    _this = _Observer.call(this) || this;\n    _this.config = void 0;\n    _this._autoLevelCapping = void 0;\n    _this.abrController = void 0;\n    _this.capLevelController = void 0;\n    _this.levelController = void 0;\n    _this.streamController = void 0;\n    _this.networkControllers = void 0;\n    _this.audioTrackController = void 0;\n    _this.subtitleTrackController = void 0;\n    _this.emeController = void 0;\n    _this.coreComponents = void 0;\n    _this.media = null;\n    _this.url = null;\n    var defaultConfig = Hls.DefaultConfig;\n\n    if ((userConfig.liveSyncDurationCount || userConfig.liveMaxLatencyDurationCount) && (userConfig.liveSyncDuration || userConfig.liveMaxLatencyDuration)) {\n      throw new Error('Illegal hls.js config: don\\'t mix up liveSyncDurationCount/liveMaxLatencyDurationCount and liveSyncDuration/liveMaxLatencyDuration');\n    } // Shallow clone\n\n\n    _this.config = hls_objectSpread(hls_objectSpread({}, defaultConfig), userConfig);\n\n    var _assertThisInitialize = hls_assertThisInitialized(_this),\n        config = _assertThisInitialize.config;\n\n    if (config.liveMaxLatencyDurationCount !== void 0 && config.liveMaxLatencyDurationCount <= config.liveSyncDurationCount) {\n      throw new Error('Illegal hls.js config: \"liveMaxLatencyDurationCount\" must be gt \"liveSyncDurationCount\"');\n    }\n\n    if (config.liveMaxLatencyDuration !== void 0 && (config.liveSyncDuration === void 0 || config.liveMaxLatencyDuration <= config.liveSyncDuration)) {\n      throw new Error('Illegal hls.js config: \"liveMaxLatencyDuration\" must be gt \"liveSyncDuration\"');\n    }\n\n    Object(logger[\"enableLogs\"])(config.debug);\n    _this._autoLevelCapping = -1; // core controllers and network loaders\n\n    /**\n     * @member {AbrController} abrController\n     */\n\n    var abrController = _this.abrController = new config.abrController(hls_assertThisInitialized(_this)); // eslint-disable-line new-cap\n\n    var bufferController = new config.bufferController(hls_assertThisInitialized(_this)); // eslint-disable-line new-cap\n\n    var capLevelController = _this.capLevelController = new config.capLevelController(hls_assertThisInitialized(_this)); // eslint-disable-line new-cap\n\n    var fpsController = new config.fpsController(hls_assertThisInitialized(_this)); // eslint-disable-line new-cap\n\n    var playListLoader = new playlist_loader(hls_assertThisInitialized(_this));\n    var fragmentLoader = new fragment_loader(hls_assertThisInitialized(_this));\n    var keyLoader = new key_loader(hls_assertThisInitialized(_this));\n    var id3TrackController = new id3_track_controller(hls_assertThisInitialized(_this)); // network controllers\n\n    /**\n     * @member {LevelController} levelController\n     */\n\n    var levelController = _this.levelController = new level_controller_LevelController(hls_assertThisInitialized(_this)); // FIXME: FragmentTracker must be defined before StreamController because the order of event handling is important\n\n    var fragmentTracker = new fragment_tracker_FragmentTracker(hls_assertThisInitialized(_this));\n    /**\n     * @member {StreamController} streamController\n     */\n\n    var streamController = _this.streamController = new stream_controller(hls_assertThisInitialized(_this), fragmentTracker);\n    var networkControllers = [levelController, streamController]; // optional audio stream controller\n\n    /**\n     * @var {ICoreComponent | Controller}\n     */\n\n    var Controller = config.audioStreamController;\n\n    if (Controller) {\n      networkControllers.push(new Controller(hls_assertThisInitialized(_this), fragmentTracker));\n    }\n    /**\n     * @member {INetworkController[]} networkControllers\n     */\n\n\n    _this.networkControllers = networkControllers;\n    /**\n     * @var {ICoreComponent[]}\n     */\n\n    var coreComponents = [playListLoader, fragmentLoader, keyLoader, abrController, bufferController, capLevelController, fpsController, id3TrackController, fragmentTracker]; // optional audio track and subtitle controller\n\n    Controller = config.audioTrackController;\n\n    if (Controller) {\n      var audioTrackController = new Controller(hls_assertThisInitialized(_this));\n      /**\n       * @member {AudioTrackController} audioTrackController\n       */\n\n      _this.audioTrackController = audioTrackController;\n      coreComponents.push(audioTrackController);\n    }\n\n    Controller = config.subtitleTrackController;\n\n    if (Controller) {\n      var subtitleTrackController = new Controller(hls_assertThisInitialized(_this));\n      /**\n       * @member {SubtitleTrackController} subtitleTrackController\n       */\n\n      _this.subtitleTrackController = subtitleTrackController;\n      networkControllers.push(subtitleTrackController);\n    }\n\n    Controller = config.emeController;\n\n    if (Controller) {\n      var emeController = new Controller(hls_assertThisInitialized(_this));\n      /**\n       * @member {EMEController} emeController\n       */\n\n      _this.emeController = emeController;\n      coreComponents.push(emeController);\n    } // optional subtitle controllers\n\n\n    Controller = config.subtitleStreamController;\n\n    if (Controller) {\n      networkControllers.push(new Controller(hls_assertThisInitialized(_this), fragmentTracker));\n    }\n\n    Controller = config.timelineController;\n\n    if (Controller) {\n      coreComponents.push(new Controller(hls_assertThisInitialized(_this)));\n    }\n    /**\n     * @member {ICoreComponent[]}\n     */\n\n\n    _this.coreComponents = coreComponents;\n    return _this;\n  }\n  /**\n   * Dispose of the instance\n   */\n\n\n  var _proto = Hls.prototype;\n\n  _proto.destroy = function destroy() {\n    logger[\"logger\"].log('destroy');\n    this.trigger(events[\"default\"].DESTROYING);\n    this.detachMedia();\n    this.coreComponents.concat(this.networkControllers).forEach(function (component) {\n      component.destroy();\n    });\n    this.url = null;\n    this.removeAllListeners();\n    this._autoLevelCapping = -1;\n  }\n  /**\n   * Attach a media element\n   * @param {HTMLMediaElement} media\n   */\n  ;\n\n  _proto.attachMedia = function attachMedia(media) {\n    logger[\"logger\"].log('attachMedia');\n    this.media = media;\n    this.trigger(events[\"default\"].MEDIA_ATTACHING, {\n      media: media\n    });\n  }\n  /**\n   * Detach from the media\n   */\n  ;\n\n  _proto.detachMedia = function detachMedia() {\n    logger[\"logger\"].log('detachMedia');\n    this.trigger(events[\"default\"].MEDIA_DETACHING);\n    this.media = null;\n  }\n  /**\n   * Set the source URL. Can be relative or absolute.\n   * @param {string} url\n   */\n  ;\n\n  _proto.loadSource = function loadSource(url) {\n    url = url_toolkit[\"buildAbsoluteURL\"](window.location.href, url, {\n      alwaysNormalize: true\n    });\n    logger[\"logger\"].log(\"loadSource:\" + url);\n    this.url = url; // when attaching to a source URL, trigger a playlist load\n\n    this.trigger(events[\"default\"].MANIFEST_LOADING, {\n      url: url\n    });\n  }\n  /**\n   * Start loading data from the stream source.\n   * Depending on default config, client starts loading automatically when a source is set.\n   *\n   * @param {number} startPosition Set the start position to stream from\n   * @default -1 None (from earliest point)\n   */\n  ;\n\n  _proto.startLoad = function startLoad(startPosition) {\n    if (startPosition === void 0) {\n      startPosition = -1;\n    }\n\n    logger[\"logger\"].log(\"startLoad(\" + startPosition + \")\");\n    this.networkControllers.forEach(function (controller) {\n      controller.startLoad(startPosition);\n    });\n  }\n  /**\n   * Stop loading of any stream data.\n   */\n  ;\n\n  _proto.stopLoad = function stopLoad() {\n    logger[\"logger\"].log('stopLoad');\n    this.networkControllers.forEach(function (controller) {\n      controller.stopLoad();\n    });\n  }\n  /**\n   * Swap through possible audio codecs in the stream (for example to switch from stereo to 5.1)\n   */\n  ;\n\n  _proto.swapAudioCodec = function swapAudioCodec() {\n    logger[\"logger\"].log('swapAudioCodec');\n    this.streamController.swapAudioCodec();\n  }\n  /**\n   * When the media-element fails, this allows to detach and then re-attach it\n   * as one call (convenience method).\n   *\n   * Automatic recovery of media-errors by this process is configurable.\n   */\n  ;\n\n  _proto.recoverMediaError = function recoverMediaError() {\n    logger[\"logger\"].log('recoverMediaError');\n    var media = this.media;\n    this.detachMedia();\n\n    if (media) {\n      this.attachMedia(media);\n    }\n  }\n  /**\n   * Remove a loaded level from the list of levels, or a level url in from a list of redundant level urls.\n   * This can be used to remove a rendition or playlist url that errors frequently from the list of levels that a user\n   * or hls.js can choose from.\n   *\n   * @param levelIndex {number} The quality level index to of the level to remove\n   * @param urlId {number} The quality level url index in the case that fallback levels are available. Defaults to 0.\n   */\n  ;\n\n  _proto.removeLevel = function removeLevel(levelIndex, urlId) {\n    if (urlId === void 0) {\n      urlId = 0;\n    }\n\n    this.levelController.removeLevel(levelIndex, urlId);\n  }\n  /**\n   * @type {QualityLevel[]}\n   */\n  // todo(typescript-levelController)\n  ;\n\n  hls_createClass(Hls, [{\n    key: \"levels\",\n    get: function get() {\n      return this.levelController.levels;\n    }\n    /**\n     * Index of quality level currently played\n     * @type {number}\n     */\n\n  }, {\n    key: \"currentLevel\",\n    get: function get() {\n      return this.streamController.currentLevel;\n    }\n    /**\n     * Set quality level index immediately .\n     * This will flush the current buffer to replace the quality asap.\n     * That means playback will interrupt at least shortly to re-buffer and re-sync eventually.\n     * @param newLevel {number} -1 for automatic level selection\n     */\n    ,\n    set: function set(newLevel) {\n      logger[\"logger\"].log(\"set currentLevel:\" + newLevel);\n      this.loadLevel = newLevel;\n      this.streamController.immediateLevelSwitch();\n    }\n    /**\n     * Index of next quality level loaded as scheduled by stream controller.\n     * @type {number}\n     */\n\n  }, {\n    key: \"nextLevel\",\n    get: function get() {\n      return this.streamController.nextLevel;\n    }\n    /**\n     * Set quality level index for next loaded data.\n     * This will switch the video quality asap, without interrupting playback.\n     * May abort current loading of data, and flush parts of buffer (outside currently played fragment region).\n     * @type {number} -1 for automatic level selection\n     */\n    ,\n    set: function set(newLevel) {\n      logger[\"logger\"].log(\"set nextLevel:\" + newLevel);\n      this.levelController.manualLevel = newLevel;\n      this.streamController.nextLevelSwitch();\n    }\n    /**\n     * Return the quality level of the currently or last (of none is loaded currently) segment\n     * @type {number}\n     */\n\n  }, {\n    key: \"loadLevel\",\n    get: function get() {\n      return this.levelController.level;\n    }\n    /**\n     * Set quality level index for next loaded data in a conservative way.\n     * This will switch the quality without flushing, but interrupt current loading.\n     * Thus the moment when the quality switch will appear in effect will only be after the already existing buffer.\n     * @type {number} newLevel -1 for automatic level selection\n     */\n    ,\n    set: function set(newLevel) {\n      logger[\"logger\"].log(\"set loadLevel:\" + newLevel);\n      this.levelController.manualLevel = newLevel;\n    }\n    /**\n     * get next quality level loaded\n     * @type {number}\n     */\n\n  }, {\n    key: \"nextLoadLevel\",\n    get: function get() {\n      return this.levelController.nextLoadLevel;\n    }\n    /**\n     * Set quality level of next loaded segment in a fully \"non-destructive\" way.\n     * Same as `loadLevel` but will wait for next switch (until current loading is done).\n     * @type {number} level\n     */\n    ,\n    set: function set(level) {\n      this.levelController.nextLoadLevel = level;\n    }\n    /**\n     * Return \"first level\": like a default level, if not set,\n     * falls back to index of first level referenced in manifest\n     * @type {number}\n     */\n\n  }, {\n    key: \"firstLevel\",\n    get: function get() {\n      return Math.max(this.levelController.firstLevel, this.minAutoLevel);\n    }\n    /**\n     * Sets \"first-level\", see getter.\n     * @type {number}\n     */\n    ,\n    set: function set(newLevel) {\n      logger[\"logger\"].log(\"set firstLevel:\" + newLevel);\n      this.levelController.firstLevel = newLevel;\n    }\n    /**\n     * Return start level (level of first fragment that will be played back)\n     * if not overrided by user, first level appearing in manifest will be used as start level\n     * if -1 : automatic start level selection, playback will start from level matching download bandwidth\n     * (determined from download of first segment)\n     * @type {number}\n     */\n\n  }, {\n    key: \"startLevel\",\n    get: function get() {\n      return this.levelController.startLevel;\n    }\n    /**\n     * set  start level (level of first fragment that will be played back)\n     * if not overrided by user, first level appearing in manifest will be used as start level\n     * if -1 : automatic start level selection, playback will start from level matching download bandwidth\n     * (determined from download of first segment)\n     * @type {number} newLevel\n     */\n    ,\n    set: function set(newLevel) {\n      logger[\"logger\"].log(\"set startLevel:\" + newLevel); // if not in automatic start level detection, ensure startLevel is greater than minAutoLevel\n\n      if (newLevel !== -1) {\n        newLevel = Math.max(newLevel, this.minAutoLevel);\n      }\n\n      this.levelController.startLevel = newLevel;\n    }\n    /**\n     * set  dynamically set capLevelToPlayerSize against (`CapLevelController`)\n     *\n     * @type {boolean}\n     */\n\n  }, {\n    key: \"capLevelToPlayerSize\",\n    set: function set(shouldStartCapping) {\n      var newCapLevelToPlayerSize = !!shouldStartCapping;\n\n      if (newCapLevelToPlayerSize !== this.config.capLevelToPlayerSize) {\n        if (newCapLevelToPlayerSize) {\n          this.capLevelController.startCapping(); // If capping occurs, nextLevelSwitch will happen based on size.\n        } else {\n          this.capLevelController.stopCapping();\n          this.autoLevelCapping = -1;\n          this.streamController.nextLevelSwitch(); // Now we're uncapped, get the next level asap.\n        }\n\n        this.config.capLevelToPlayerSize = newCapLevelToPlayerSize;\n      }\n    }\n    /**\n     * Capping/max level value that should be used by automatic level selection algorithm (`ABRController`)\n     * @type {number}\n     */\n\n  }, {\n    key: \"autoLevelCapping\",\n    get: function get() {\n      return this._autoLevelCapping;\n    }\n    /**\n     * get bandwidth estimate\n     * @type {number}\n     */\n    ,\n\n    /**\n     * Capping/max level value that should be used by automatic level selection algorithm (`ABRController`)\n     * @type {number}\n     */\n    set: function set(newLevel) {\n      logger[\"logger\"].log(\"set autoLevelCapping:\" + newLevel);\n      this._autoLevelCapping = newLevel;\n    }\n    /**\n     * True when automatic level selection enabled\n     * @type {boolean}\n     */\n\n  }, {\n    key: \"bandwidthEstimate\",\n    get: function get() {\n      var bwEstimator = this.abrController._bwEstimator;\n      return bwEstimator ? bwEstimator.getEstimate() : NaN;\n    }\n  }, {\n    key: \"autoLevelEnabled\",\n    get: function get() {\n      return this.levelController.manualLevel === -1;\n    }\n    /**\n     * Level set manually (if any)\n     * @type {number}\n     */\n\n  }, {\n    key: \"manualLevel\",\n    get: function get() {\n      return this.levelController.manualLevel;\n    }\n    /**\n     * min level selectable in auto mode according to config.minAutoBitrate\n     * @type {number}\n     */\n\n  }, {\n    key: \"minAutoLevel\",\n    get: function get() {\n      var levels = this.levels,\n          minAutoBitrate = this.config.minAutoBitrate;\n      var len = levels ? levels.length : 0;\n\n      for (var i = 0; i < len; i++) {\n        var levelNextBitrate = levels[i].realBitrate ? Math.max(levels[i].realBitrate, levels[i].bitrate) : levels[i].bitrate;\n\n        if (levelNextBitrate > minAutoBitrate) {\n          return i;\n        }\n      }\n\n      return 0;\n    }\n    /**\n     * max level selectable in auto mode according to autoLevelCapping\n     * @type {number}\n     */\n\n  }, {\n    key: \"maxAutoLevel\",\n    get: function get() {\n      var levels = this.levels,\n          autoLevelCapping = this.autoLevelCapping;\n      var maxAutoLevel;\n\n      if (autoLevelCapping === -1 && levels && levels.length) {\n        maxAutoLevel = levels.length - 1;\n      } else {\n        maxAutoLevel = autoLevelCapping;\n      }\n\n      return maxAutoLevel;\n    }\n    /**\n     * next automatically selected quality level\n     * @type {number}\n     */\n\n  }, {\n    key: \"nextAutoLevel\",\n    get: function get() {\n      // ensure next auto level is between  min and max auto level\n      return Math.min(Math.max(this.abrController.nextAutoLevel, this.minAutoLevel), this.maxAutoLevel);\n    }\n    /**\n     * this setter is used to force next auto level.\n     * this is useful to force a switch down in auto mode:\n     * in case of load error on level N, hls.js can set nextAutoLevel to N-1 for example)\n     * forced value is valid for one fragment. upon succesful frag loading at forced level,\n     * this value will be resetted to -1 by ABR controller.\n     * @type {number}\n     */\n    ,\n    set: function set(nextLevel) {\n      this.abrController.nextAutoLevel = Math.max(this.minAutoLevel, nextLevel);\n    }\n    /**\n     * @type {AudioTrack[]}\n     */\n    // todo(typescript-audioTrackController)\n\n  }, {\n    key: \"audioTracks\",\n    get: function get() {\n      var audioTrackController = this.audioTrackController;\n      return audioTrackController ? audioTrackController.audioTracks : [];\n    }\n    /**\n     * index of the selected audio track (index in audio track lists)\n     * @type {number}\n     */\n\n  }, {\n    key: \"audioTrack\",\n    get: function get() {\n      var audioTrackController = this.audioTrackController;\n      return audioTrackController ? audioTrackController.audioTrack : -1;\n    }\n    /**\n     * selects an audio track, based on its index in audio track lists\n     * @type {number}\n     */\n    ,\n    set: function set(audioTrackId) {\n      var audioTrackController = this.audioTrackController;\n\n      if (audioTrackController) {\n        audioTrackController.audioTrack = audioTrackId;\n      }\n    }\n    /**\n     * @type {Seconds}\n     */\n\n  }, {\n    key: \"liveSyncPosition\",\n    get: function get() {\n      return this.streamController.liveSyncPosition;\n    }\n    /**\n     * get alternate subtitle tracks list from playlist\n     * @type {SubtitleTrack[]}\n     */\n    // todo(typescript-subtitleTrackController)\n\n  }, {\n    key: \"subtitleTracks\",\n    get: function get() {\n      var subtitleTrackController = this.subtitleTrackController;\n      return subtitleTrackController ? subtitleTrackController.subtitleTracks : [];\n    }\n    /**\n     * index of the selected subtitle track (index in subtitle track lists)\n     * @type {number}\n     */\n\n  }, {\n    key: \"subtitleTrack\",\n    get: function get() {\n      var subtitleTrackController = this.subtitleTrackController;\n      return subtitleTrackController ? subtitleTrackController.subtitleTrack : -1;\n    }\n    /**\n     * select an subtitle track, based on its index in subtitle track lists\n     * @type {number}\n     */\n    ,\n    set: function set(subtitleTrackId) {\n      var subtitleTrackController = this.subtitleTrackController;\n\n      if (subtitleTrackController) {\n        subtitleTrackController.subtitleTrack = subtitleTrackId;\n      }\n    }\n    /**\n     * @type {boolean}\n     */\n\n  }, {\n    key: \"subtitleDisplay\",\n    get: function get() {\n      var subtitleTrackController = this.subtitleTrackController;\n      return subtitleTrackController ? subtitleTrackController.subtitleDisplay : false;\n    }\n    /**\n     * Enable/disable subtitle display rendering\n     * @type {boolean}\n     */\n    ,\n    set: function set(value) {\n      var subtitleTrackController = this.subtitleTrackController;\n\n      if (subtitleTrackController) {\n        subtitleTrackController.subtitleDisplay = value;\n      }\n    }\n  }]);\n\n  return Hls;\n}(Observer);\n\nhls_Hls.defaultConfig = void 0;\n\n\n/***/ }),\n\n/***/ \"./src/polyfills/number-isFinite.js\":\n/*!******************************************!*\\\n  !*** ./src/polyfills/number-isFinite.js ***!\n  \\******************************************/\n/*! exports provided: isFiniteNumber */\n/***/ (function(module, __webpack_exports__, __webpack_require__) {\n\n\"use strict\";\n__webpack_require__.r(__webpack_exports__);\n/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, \"isFiniteNumber\", function() { return isFiniteNumber; });\nvar isFiniteNumber = Number.isFinite || function (value) {\n  return typeof value === 'number' && isFinite(value);\n};\n\n/***/ }),\n\n/***/ \"./src/utils/get-self-scope.js\":\n/*!*************************************!*\\\n  !*** ./src/utils/get-self-scope.js ***!\n  \\*************************************/\n/*! exports provided: getSelfScope */\n/***/ (function(module, __webpack_exports__, __webpack_require__) {\n\n\"use strict\";\n__webpack_require__.r(__webpack_exports__);\n/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, \"getSelfScope\", function() { return getSelfScope; });\nfunction getSelfScope() {\n  // see https://stackoverflow.com/a/11237259/589493\n  if (typeof window === 'undefined') {\n    /* eslint-disable-next-line no-undef */\n    return self;\n  } else {\n    return window;\n  }\n}\n\n/***/ }),\n\n/***/ \"./src/utils/logger.js\":\n/*!*****************************!*\\\n  !*** ./src/utils/logger.js ***!\n  \\*****************************/\n/*! exports provided: enableLogs, logger */\n/***/ (function(module, __webpack_exports__, __webpack_require__) {\n\n\"use strict\";\n__webpack_require__.r(__webpack_exports__);\n/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, \"enableLogs\", function() { return enableLogs; });\n/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, \"logger\", function() { return logger; });\n/* harmony import */ var _get_self_scope__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./get-self-scope */ \"./src/utils/get-self-scope.js\");\n\n\nfunction noop() {}\n\nvar fakeLogger = {\n  trace: noop,\n  debug: noop,\n  log: noop,\n  warn: noop,\n  info: noop,\n  error: noop\n};\nvar exportedLogger = fakeLogger; // let lastCallTime;\n// function formatMsgWithTimeInfo(type, msg) {\n//   const now = Date.now();\n//   const diff = lastCallTime ? '+' + (now - lastCallTime) : '0';\n//   lastCallTime = now;\n//   msg = (new Date(now)).toISOString() + ' | [' +  type + '] > ' + msg + ' ( ' + diff + ' ms )';\n//   return msg;\n// }\n\nfunction formatMsg(type, msg) {\n  msg = '[' + type + '] > ' + msg;\n  return msg;\n}\n\nvar global = Object(_get_self_scope__WEBPACK_IMPORTED_MODULE_0__[\"getSelfScope\"])();\n\nfunction consolePrintFn(type) {\n  var func = global.console[type];\n\n  if (func) {\n    return function () {\n      for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {\n        args[_key] = arguments[_key];\n      }\n\n      if (args[0]) {\n        args[0] = formatMsg(type, args[0]);\n      }\n\n      func.apply(global.console, args);\n    };\n  }\n\n  return noop;\n}\n\nfunction exportLoggerFunctions(debugConfig) {\n  for (var _len2 = arguments.length, functions = new Array(_len2 > 1 ? _len2 - 1 : 0), _key2 = 1; _key2 < _len2; _key2++) {\n    functions[_key2 - 1] = arguments[_key2];\n  }\n\n  functions.forEach(function (type) {\n    exportedLogger[type] = debugConfig[type] ? debugConfig[type].bind(debugConfig) : consolePrintFn(type);\n  });\n}\n\nvar enableLogs = function enableLogs(debugConfig) {\n  // check that console is available\n  if (global.console && debugConfig === true || typeof debugConfig === 'object') {\n    exportLoggerFunctions(debugConfig, // Remove out from list here to hard-disable a log-level\n    // 'trace',\n    'debug', 'log', 'info', 'warn', 'error'); // Some browsers don't allow to use bind on console object anyway\n    // fallback to default if needed\n\n    try {\n      exportedLogger.log();\n    } catch (e) {\n      exportedLogger = fakeLogger;\n    }\n  } else {\n    exportedLogger = fakeLogger;\n  }\n};\nvar logger = exportedLogger;\n\n/***/ })\n\n/******/ })[\"default\"];\n});\n//# sourceMappingURL=hls.js.map","\"use strict\";Object.defineProperty(exports,\"__esModule\",{value:true});function _classCallCheck(instance,Constructor){if(!(instance instanceof Constructor)){throw new TypeError(\"Cannot call a class as a function\");}}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n *//**\n * @class\n * @ignore\n */var Segment=function Segment(){_classCallCheck(this,Segment);this.indexRange=null;this.index=null;this.mediaRange=null;this.media=null;this.duration=NaN;// this is the time that should be inserted into the media url\nthis.replacementTime=null;// this is the number that should be inserted into the media url\nthis.replacementNumber=NaN;// This is supposed to match the time encoded in the media Segment\nthis.mediaStartTime=NaN;// When the source buffer timeOffset is set to MSETimeOffset this is the\n// time that will match the seekTarget and video.currentTime\nthis.presentationStartTime=NaN;// Do not schedule this segment until\nthis.availabilityStartTime=NaN;// Ignore and  discard this segment after\nthis.availabilityEndTime=NaN;// The index of the segment inside the availability window\nthis.availabilityIdx=NaN;// For dynamic mpd's, this is the wall clock time that the video\n// element currentTime should be presentationStartTime\nthis.wallStartTime=NaN;this.representation=null;};exports.default=Segment;\n//# sourceMappingURL=Segment.js.map\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _FragmentRequest2=require('./FragmentRequest');var _FragmentRequest3=_interopRequireDefault(_FragmentRequest2);function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}function _classCallCheck(instance,Constructor){if(!(instance instanceof Constructor)){throw new TypeError(\"Cannot call a class as a function\");}}function _possibleConstructorReturn(self,call){if(!self){throw new ReferenceError(\"this hasn't been initialised - super() hasn't been called\");}return call&&(typeof call===\"object\"||typeof call===\"function\")?call:self;}function _inherits(subClass,superClass){if(typeof superClass!==\"function\"&&superClass!==null){throw new TypeError(\"Super expression must either be null or a function, not \"+typeof superClass);}subClass.prototype=Object.create(superClass&&superClass.prototype,{constructor:{value:subClass,enumerable:false,writable:true,configurable:true}});if(superClass)Object.setPrototypeOf?Object.setPrototypeOf(subClass,superClass):subClass.__proto__=superClass;}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n *//**\n * @class\n * @ignore\n */var HeadRequest=function(_FragmentRequest){_inherits(HeadRequest,_FragmentRequest);function HeadRequest(url){_classCallCheck(this,HeadRequest);var _this=_possibleConstructorReturn(this,(HeadRequest.__proto__||Object.getPrototypeOf(HeadRequest)).call(this,url));_this.checkForExistenceOnly=true;return _this;}return HeadRequest;}(_FragmentRequest3.default);exports.default=HeadRequest;\n//# sourceMappingURL=HeadRequest.js.map\n","module.exports = require('./lib/axios');","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _MetricSerialiser=require('../../utils/MetricSerialiser');var _MetricSerialiser2=_interopRequireDefault(_MetricSerialiser);var _RNG=require('../../utils/RNG');var _RNG2=_interopRequireDefault(_RNG);function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n */function DVBReporting(config){config=config||{};var instance=void 0;var context=this.context;var metricSerialiser=void 0,randomNumberGenerator=void 0,reportingPlayerStatusDecided=void 0,isReportingPlayer=void 0,reportingUrl=void 0,rangeController=void 0;var USE_DRAFT_DVB_SPEC=true;var allowPendingRequestsToCompleteOnReset=true;var pendingRequests=[];var metricsConstants=config.metricsConstants;function setup(){metricSerialiser=(0,_MetricSerialiser2.default)(context).getInstance();randomNumberGenerator=(0,_RNG2.default)(context).getInstance();resetInitialSettings();}function doGetRequest(url,successCB,failureCB){var req=new XMLHttpRequest();var oncomplete=function oncomplete(){var reqIndex=pendingRequests.indexOf(req);if(reqIndex===-1){return;}else{pendingRequests.splice(reqIndex,1);}if(req.status>=200&&req.status<300){if(successCB){successCB();}}else{if(failureCB){failureCB();}}};pendingRequests.push(req);try{req.open('GET',url);req.onloadend=oncomplete;req.onerror=oncomplete;req.send();}catch(e){req.onerror();}}function report(type,vos){if(!Array.isArray(vos)){vos=[vos];}// If the Player is not a reporting Player, then the Player shall\n// not report any errors.\n// ... In addition to any time restrictions specified by a Range\n// element within the Metrics element.\nif(isReportingPlayer&&rangeController.isEnabled()){// This reporting mechanism operates by creating one HTTP GET\n// request for every entry in the top level list of the metric.\nvos.forEach(function(vo){var url=metricSerialiser.serialise(vo);// this has been proposed for errata\nif(USE_DRAFT_DVB_SPEC&&type!==metricsConstants.DVB_ERRORS){url='metricname='+type+'&'+url;}// Take the value of the @reportingUrl attribute, append a\n// question mark ('?') character and then append the string\n// created in the previous step.\nurl=reportingUrl+'?'+url;// Make an HTTP GET request to the URL contained within the\n// string created in the previous step.\ndoGetRequest(url,null,function(){// If the Player is unable to make the report, for\n// example because the @reportingUrl is invalid, the\n// host cannot be reached, or an HTTP status code other\n// than one in the 200 series is received, the Player\n// shall cease being a reporting Player for the\n// duration of the MPD.\nisReportingPlayer=false;});});}}function initialize(entry,rc){var probability=void 0;rangeController=rc;reportingUrl=entry['dvb:reportingUrl'];// If a required attribute is missing, the Reporting descriptor may\n// be ignored by the Player\nif(!reportingUrl){throw new Error('required parameter missing (dvb:reportingUrl)');}// A Player's status, as a reporting Player or not, shall remain\n// static for the duration of the MPD, regardless of MPD updates.\n// (i.e. only calling reset (or failure) changes this state)\nif(!reportingPlayerStatusDecided){// NOTE: DVB spec has a typo where it incorrectly references the\n// priority attribute, which should be probability\nprobability=entry['dvb:probability']||entry['dvb:priority']||0;// If the @priority attribute is set to 1000, it shall be a reporting Player.\n// If the @priority attribute is missing, the Player shall not be a reporting Player.\n// For any other value of the @probability attribute, it shall decide at random whether to be a\n// reporting Player, such that the probability of being one is @probability/1000.\nif(probability&&(probability===1000||probability/1000>=randomNumberGenerator.random())){isReportingPlayer=true;}reportingPlayerStatusDecided=true;}}function resetInitialSettings(){reportingPlayerStatusDecided=false;isReportingPlayer=false;reportingUrl=null;rangeController=null;}function reset(){if(!allowPendingRequestsToCompleteOnReset){pendingRequests.forEach(function(req){return req.abort();});pendingRequests=[];}resetInitialSettings();}instance={report:report,initialize:initialize,reset:reset};setup();return instance;}DVBReporting.__dashjs_factory_name='DVBReporting';exports.default=dashjs.FactoryMaker.getClassFactory(DVBReporting);/* jshint ignore:line */\n//# sourceMappingURL=DVBReporting.js.map\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _FactoryMaker=require('../../core/FactoryMaker');var _FactoryMaker2=_interopRequireDefault(_FactoryMaker);var _TimelineSegmentsGetter=require('../utils/TimelineSegmentsGetter');var _TimelineSegmentsGetter2=_interopRequireDefault(_TimelineSegmentsGetter);var _TemplateSegmentsGetter=require('../utils/TemplateSegmentsGetter');var _TemplateSegmentsGetter2=_interopRequireDefault(_TemplateSegmentsGetter);var _ListSegmentsGetter=require('../utils/ListSegmentsGetter');var _ListSegmentsGetter2=_interopRequireDefault(_ListSegmentsGetter);var _SegmentBaseGetter=require('../utils/SegmentBaseGetter');var _SegmentBaseGetter2=_interopRequireDefault(_SegmentBaseGetter);function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}function SegmentsController(config){config=config||{};var context=this.context;var events=config.events;var eventBus=config.eventBus;var dashConstants=config.dashConstants;var instance=void 0,getters=void 0;function setup(){getters={};}function initialize(isDynamic){getters[dashConstants.SEGMENT_TIMELINE]=(0,_TimelineSegmentsGetter2.default)(context).create(config,isDynamic);getters[dashConstants.SEGMENT_TEMPLATE]=(0,_TemplateSegmentsGetter2.default)(context).create(config,isDynamic);getters[dashConstants.SEGMENT_LIST]=(0,_ListSegmentsGetter2.default)(context).create(config,isDynamic);getters[dashConstants.SEGMENT_BASE]=(0,_SegmentBaseGetter2.default)(context).create(config,isDynamic);}function update(voRepresentation,type,mimeType,hasInitialization,hasSegments){if(!hasInitialization){eventBus.trigger(events.SEGMENTBASE_INIT_REQUEST_NEEDED,{mimeType:mimeType,representation:voRepresentation});}if(!hasSegments){eventBus.trigger(events.SEGMENTBASE_SEGMENTSLIST_REQUEST_NEEDED,{mimeType:mimeType,mediaType:type,representation:voRepresentation});}}function getSegmentsGetter(representation){return representation?representation.segments?getters[dashConstants.SEGMENT_BASE]:getters[representation.segmentInfoType]:null;}function getSegmentByIndex(representation,index,lastSegmentTime){var getter=getSegmentsGetter(representation);return getter?getter.getSegmentByIndex(representation,index,lastSegmentTime):null;}function getSegmentByTime(representation,time){var getter=getSegmentsGetter(representation);return getter?getter.getSegmentByTime(representation,time):null;}instance={initialize:initialize,update:update,getSegmentByIndex:getSegmentByIndex,getSegmentByTime:getSegmentByTime};setup();return instance;}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n */SegmentsController.__dashjs_factory_name='SegmentsController';var factory=_FactoryMaker2.default.getClassFactory(SegmentsController);exports.default=factory;\n//# sourceMappingURL=SegmentsController.js.map\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _UTCTiming=require('../../dash/vo/UTCTiming');var _UTCTiming2=_interopRequireDefault(_UTCTiming);var _FactoryMaker=require('../../core/FactoryMaker');var _FactoryMaker2=_interopRequireDefault(_FactoryMaker);var _Constants=require('../constants/Constants');var _Constants2=_interopRequireDefault(_Constants);var _ABRRulesCollection=require('../rules/abr/ABRRulesCollection');var _ABRRulesCollection2=_interopRequireDefault(_ABRRulesCollection);var _Settings=require('../../core/Settings');var _Settings2=_interopRequireDefault(_Settings);var _SupervisorTools=require('../utils/SupervisorTools');function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n */var DEFAULT_MIN_BUFFER_TIME=12;var DEFAULT_MIN_BUFFER_TIME_FAST_SWITCH=20;var DEFAULT_LOW_LATENCY_LIVE_DELAY=3.0;var LOW_LATENCY_REDUCTION_FACTOR=10;var LOW_LATENCY_MULTIPLY_FACTOR=5;var DEFAULT_XHR_WITH_CREDENTIALS=false;function MediaPlayerModel(){var instance=void 0,UTCTimingSources=void 0,xhrWithCredentials=void 0,customABRRule=void 0;var DEFAULT_UTC_TIMING_SOURCE={scheme:'urn:mpeg:dash:utc:http-xsdate:2014',value:'http://time.akamai.com/?iso&ms'};var context=this.context;var settings=(0,_Settings2.default)(context).getInstance();function setup(){UTCTimingSources=[];xhrWithCredentials={default:DEFAULT_XHR_WITH_CREDENTIALS};customABRRule=[];}//TODO Should we use Object.define to have setters/getters? makes more readable code on other side.\nfunction findABRCustomRuleIndex(rulename){var i=void 0;for(i=0;i<customABRRule.length;i++){if(customABRRule[i].rulename===rulename){return i;}}return-1;}function getABRCustomRules(){return customABRRule;}function addABRCustomRule(type,rulename,rule){if(typeof type!=='string'||type!==_ABRRulesCollection2.default.ABANDON_FRAGMENT_RULES&&type!==_ABRRulesCollection2.default.QUALITY_SWITCH_RULES||typeof rulename!=='string'){throw _Constants2.default.BAD_ARGUMENT_ERROR;}var index=findABRCustomRuleIndex(rulename);if(index===-1){// add rule\ncustomABRRule.push({type:type,rulename:rulename,rule:rule});}else{// update rule\ncustomABRRule[index].type=type;customABRRule[index].rule=rule;}}function removeABRCustomRule(rulename){if(rulename){var index=findABRCustomRuleIndex(rulename);//if no rulename custom rule has been found, do nothing\nif(index!==-1){// remove rule\ncustomABRRule.splice(index,1);}}else{//if no rulename is defined, remove all ABR custome rules\ncustomABRRule=[];}}function getStableBufferTime(){if(settings.get().streaming.lowLatencyEnabled){return getLiveDelay()*0.6;}var stableBufferTime=settings.get().streaming.stableBufferTime;return stableBufferTime>-1?stableBufferTime:settings.get().streaming.fastSwitchEnabled?DEFAULT_MIN_BUFFER_TIME_FAST_SWITCH:DEFAULT_MIN_BUFFER_TIME;}function getRetryAttemptsForType(type){return settings.get().streaming.lowLatencyEnabled?settings.get().streaming.retryAttempts[type]*LOW_LATENCY_MULTIPLY_FACTOR:settings.get().streaming.retryAttempts[type];}function getRetryIntervalsForType(type){return settings.get().streaming.lowLatencyEnabled?settings.get().streaming.retryIntervals[type]/LOW_LATENCY_REDUCTION_FACTOR:settings.get().streaming.retryIntervals[type];}function getLiveDelay(){if(settings.get().streaming.lowLatencyEnabled){return settings.get().streaming.liveDelay||DEFAULT_LOW_LATENCY_LIVE_DELAY;}return settings.get().streaming.liveDelay;}function addUTCTimingSource(schemeIdUri,value){removeUTCTimingSource(schemeIdUri,value);//check if it already exists and remove if so.\nvar vo=new _UTCTiming2.default();vo.schemeIdUri=schemeIdUri;vo.value=value;UTCTimingSources.push(vo);}function getUTCTimingSources(){return UTCTimingSources;}function removeUTCTimingSource(schemeIdUri,value){(0,_SupervisorTools.checkParameterType)(schemeIdUri,'string');(0,_SupervisorTools.checkParameterType)(value,'string');UTCTimingSources.forEach(function(obj,idx){if(obj.schemeIdUri===schemeIdUri&&obj.value===value){UTCTimingSources.splice(idx,1);}});}function clearDefaultUTCTimingSources(){UTCTimingSources=[];}function restoreDefaultUTCTimingSources(){addUTCTimingSource(DEFAULT_UTC_TIMING_SOURCE.scheme,DEFAULT_UTC_TIMING_SOURCE.value);}function setXHRWithCredentialsForType(type,value){if(!type){Object.keys(xhrWithCredentials).forEach(function(key){setXHRWithCredentialsForType(key,value);});}else{xhrWithCredentials[type]=!!value;}}function getXHRWithCredentialsForType(type){var useCreds=xhrWithCredentials[type];return useCreds===undefined?xhrWithCredentials.default:useCreds;}function getDefaultUtcTimingSource(){return DEFAULT_UTC_TIMING_SOURCE;}function reset(){//TODO need to figure out what props to persist across sessions and which to reset if any.\n//setup();\n}instance={getABRCustomRules:getABRCustomRules,addABRCustomRule:addABRCustomRule,removeABRCustomRule:removeABRCustomRule,getStableBufferTime:getStableBufferTime,getRetryAttemptsForType:getRetryAttemptsForType,getRetryIntervalsForType:getRetryIntervalsForType,getLiveDelay:getLiveDelay,addUTCTimingSource:addUTCTimingSource,removeUTCTimingSource:removeUTCTimingSource,getUTCTimingSources:getUTCTimingSources,clearDefaultUTCTimingSources:clearDefaultUTCTimingSources,restoreDefaultUTCTimingSources:restoreDefaultUTCTimingSources,setXHRWithCredentialsForType:setXHRWithCredentialsForType,getXHRWithCredentialsForType:getXHRWithCredentialsForType,getDefaultUtcTimingSource:getDefaultUtcTimingSource,reset:reset};setup();return instance;}//TODO see if you can move this and not export and just getter to get default value.\nMediaPlayerModel.__dashjs_factory_name='MediaPlayerModel';exports.default=_FactoryMaker2.default.getSingletonFactory(MediaPlayerModel);\n//# sourceMappingURL=MediaPlayerModel.js.map\n","var win;\n\nif (typeof window !== \"undefined\") {\n    win = window;\n} else if (typeof global !== \"undefined\") {\n    win = global;\n} else if (typeof self !== \"undefined\"){\n    win = self;\n} else {\n    win = {};\n}\n\nmodule.exports = win;\n","var isObject = require('../internals/is-object');\n\n// `ToPrimitive` abstract operation\n// https://tc39.github.io/ecma262/#sec-toprimitive\n// instead of the ES6 spec version, we didn't implement @@toPrimitive case\n// and the second argument - flag - preferred type is a string\nmodule.exports = function (input, PREFERRED_STRING) {\n  if (!isObject(input)) return input;\n  var fn, val;\n  if (PREFERRED_STRING && typeof (fn = input.toString) == 'function' && !isObject(val = fn.call(input))) return val;\n  if (typeof (fn = input.valueOf) == 'function' && !isObject(val = fn.call(input))) return val;\n  if (!PREFERRED_STRING && typeof (fn = input.toString) == 'function' && !isObject(val = fn.call(input))) return val;\n  throw TypeError(\"Can't convert object to primitive value\");\n};\n","\"use strict\";Object.defineProperty(exports,\"__esModule\",{value:true});var _createClass=function(){function defineProperties(target,props){for(var i=0;i<props.length;i++){var descriptor=props[i];descriptor.enumerable=descriptor.enumerable||false;descriptor.configurable=true;if(\"value\"in descriptor)descriptor.writable=true;Object.defineProperty(target,descriptor.key,descriptor);}}return function(Constructor,protoProps,staticProps){if(protoProps)defineProperties(Constructor.prototype,protoProps);if(staticProps)defineProperties(Constructor,staticProps);return Constructor;};}();function _classCallCheck(instance,Constructor){if(!(instance instanceof Constructor)){throw new TypeError(\"Cannot call a class as a function\");}}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n *//**\n * @classdesc a base type for matching and converting types in manifest to\n * something more useful\n * @ignore\n */var BaseMatcher=function(){function BaseMatcher(test,converter){_classCallCheck(this,BaseMatcher);this._test=test;this._converter=converter;}_createClass(BaseMatcher,[{key:\"test\",get:function get(){return this._test;}},{key:\"converter\",get:function get(){return this._converter;}}]);return BaseMatcher;}();exports.default=BaseMatcher;\n//# sourceMappingURL=BaseMatcher.js.map\n","module.exports = require('./readable').PassThrough\n","'use strict';\n\nvar utils = require('./../utils');\n\n// Headers whose duplicates are ignored by node\n// c.f. https://nodejs.org/api/http.html#http_message_headers\nvar ignoreDuplicateOf = [\n  'age', 'authorization', 'content-length', 'content-type', 'etag',\n  'expires', 'from', 'host', 'if-modified-since', 'if-unmodified-since',\n  'last-modified', 'location', 'max-forwards', 'proxy-authorization',\n  'referer', 'retry-after', 'user-agent'\n];\n\n/**\n * Parse headers into an object\n *\n * ```\n * Date: Wed, 27 Aug 2014 08:58:49 GMT\n * Content-Type: application/json\n * Connection: keep-alive\n * Transfer-Encoding: chunked\n * ```\n *\n * @param {String} headers Headers needing to be parsed\n * @returns {Object} Headers parsed into an object\n */\nmodule.exports = function parseHeaders(headers) {\n  var parsed = {};\n  var key;\n  var val;\n  var i;\n\n  if (!headers) { return parsed; }\n\n  utils.forEach(headers.split('\\n'), function parser(line) {\n    i = line.indexOf(':');\n    key = utils.trim(line.substr(0, i)).toLowerCase();\n    val = utils.trim(line.substr(i + 1));\n\n    if (key) {\n      if (parsed[key] && ignoreDuplicateOf.indexOf(key) >= 0) {\n        return;\n      }\n      if (key === 'set-cookie') {\n        parsed[key] = (parsed[key] ? parsed[key] : []).concat([val]);\n      } else {\n        parsed[key] = parsed[key] ? parsed[key] + ', ' + val : val;\n      }\n    }\n  });\n\n  return parsed;\n};\n","'use strict';\n\nvar utils = require('./../utils');\n\n/**\n * Transform the data for a request or a response\n *\n * @param {Object|String} data The data to be transformed\n * @param {Array} headers The headers for the request or response\n * @param {Array|Function} fns A single function or Array of functions\n * @returns {*} The resulting transformed data\n */\nmodule.exports = function transformData(data, headers, fns) {\n  /*eslint no-param-reassign:0*/\n  utils.forEach(fns, function transform(fn) {\n    data = fn(data, headers);\n  });\n\n  return data;\n};\n","module.exports = false;\n","'use strict';\n\nvar bind = require('./helpers/bind');\n\n/*global toString:true*/\n\n// utils is a library of generic helper functions non-specific to axios\n\nvar toString = Object.prototype.toString;\n\n/**\n * Determine if a value is an Array\n *\n * @param {Object} val The value to test\n * @returns {boolean} True if value is an Array, otherwise false\n */\nfunction isArray(val) {\n  return toString.call(val) === '[object Array]';\n}\n\n/**\n * Determine if a value is undefined\n *\n * @param {Object} val The value to test\n * @returns {boolean} True if the value is undefined, otherwise false\n */\nfunction isUndefined(val) {\n  return typeof val === 'undefined';\n}\n\n/**\n * Determine if a value is a Buffer\n *\n * @param {Object} val The value to test\n * @returns {boolean} True if value is a Buffer, otherwise false\n */\nfunction isBuffer(val) {\n  return val !== null && !isUndefined(val) && val.constructor !== null && !isUndefined(val.constructor)\n    && typeof val.constructor.isBuffer === 'function' && val.constructor.isBuffer(val);\n}\n\n/**\n * Determine if a value is an ArrayBuffer\n *\n * @param {Object} val The value to test\n * @returns {boolean} True if value is an ArrayBuffer, otherwise false\n */\nfunction isArrayBuffer(val) {\n  return toString.call(val) === '[object ArrayBuffer]';\n}\n\n/**\n * Determine if a value is a FormData\n *\n * @param {Object} val The value to test\n * @returns {boolean} True if value is an FormData, otherwise false\n */\nfunction isFormData(val) {\n  return (typeof FormData !== 'undefined') && (val instanceof FormData);\n}\n\n/**\n * Determine if a value is a view on an ArrayBuffer\n *\n * @param {Object} val The value to test\n * @returns {boolean} True if value is a view on an ArrayBuffer, otherwise false\n */\nfunction isArrayBufferView(val) {\n  var result;\n  if ((typeof ArrayBuffer !== 'undefined') && (ArrayBuffer.isView)) {\n    result = ArrayBuffer.isView(val);\n  } else {\n    result = (val) && (val.buffer) && (val.buffer instanceof ArrayBuffer);\n  }\n  return result;\n}\n\n/**\n * Determine if a value is a String\n *\n * @param {Object} val The value to test\n * @returns {boolean} True if value is a String, otherwise false\n */\nfunction isString(val) {\n  return typeof val === 'string';\n}\n\n/**\n * Determine if a value is a Number\n *\n * @param {Object} val The value to test\n * @returns {boolean} True if value is a Number, otherwise false\n */\nfunction isNumber(val) {\n  return typeof val === 'number';\n}\n\n/**\n * Determine if a value is an Object\n *\n * @param {Object} val The value to test\n * @returns {boolean} True if value is an Object, otherwise false\n */\nfunction isObject(val) {\n  return val !== null && typeof val === 'object';\n}\n\n/**\n * Determine if a value is a plain Object\n *\n * @param {Object} val The value to test\n * @return {boolean} True if value is a plain Object, otherwise false\n */\nfunction isPlainObject(val) {\n  if (toString.call(val) !== '[object Object]') {\n    return false;\n  }\n\n  var prototype = Object.getPrototypeOf(val);\n  return prototype === null || prototype === Object.prototype;\n}\n\n/**\n * Determine if a value is a Date\n *\n * @param {Object} val The value to test\n * @returns {boolean} True if value is a Date, otherwise false\n */\nfunction isDate(val) {\n  return toString.call(val) === '[object Date]';\n}\n\n/**\n * Determine if a value is a File\n *\n * @param {Object} val The value to test\n * @returns {boolean} True if value is a File, otherwise false\n */\nfunction isFile(val) {\n  return toString.call(val) === '[object File]';\n}\n\n/**\n * Determine if a value is a Blob\n *\n * @param {Object} val The value to test\n * @returns {boolean} True if value is a Blob, otherwise false\n */\nfunction isBlob(val) {\n  return toString.call(val) === '[object Blob]';\n}\n\n/**\n * Determine if a value is a Function\n *\n * @param {Object} val The value to test\n * @returns {boolean} True if value is a Function, otherwise false\n */\nfunction isFunction(val) {\n  return toString.call(val) === '[object Function]';\n}\n\n/**\n * Determine if a value is a Stream\n *\n * @param {Object} val The value to test\n * @returns {boolean} True if value is a Stream, otherwise false\n */\nfunction isStream(val) {\n  return isObject(val) && isFunction(val.pipe);\n}\n\n/**\n * Determine if a value is a URLSearchParams object\n *\n * @param {Object} val The value to test\n * @returns {boolean} True if value is a URLSearchParams object, otherwise false\n */\nfunction isURLSearchParams(val) {\n  return typeof URLSearchParams !== 'undefined' && val instanceof URLSearchParams;\n}\n\n/**\n * Trim excess whitespace off the beginning and end of a string\n *\n * @param {String} str The String to trim\n * @returns {String} The String freed of excess whitespace\n */\nfunction trim(str) {\n  return str.replace(/^\\s*/, '').replace(/\\s*$/, '');\n}\n\n/**\n * Determine if we're running in a standard browser environment\n *\n * This allows axios to run in a web worker, and react-native.\n * Both environments support XMLHttpRequest, but not fully standard globals.\n *\n * web workers:\n *  typeof window -> undefined\n *  typeof document -> undefined\n *\n * react-native:\n *  navigator.product -> 'ReactNative'\n * nativescript\n *  navigator.product -> 'NativeScript' or 'NS'\n */\nfunction isStandardBrowserEnv() {\n  if (typeof navigator !== 'undefined' && (navigator.product === 'ReactNative' ||\n                                           navigator.product === 'NativeScript' ||\n                                           navigator.product === 'NS')) {\n    return false;\n  }\n  return (\n    typeof window !== 'undefined' &&\n    typeof document !== 'undefined'\n  );\n}\n\n/**\n * Iterate over an Array or an Object invoking a function for each item.\n *\n * If `obj` is an Array callback will be called passing\n * the value, index, and complete array for each item.\n *\n * If 'obj' is an Object callback will be called passing\n * the value, key, and complete object for each property.\n *\n * @param {Object|Array} obj The object to iterate\n * @param {Function} fn The callback to invoke for each item\n */\nfunction forEach(obj, fn) {\n  // Don't bother if no value provided\n  if (obj === null || typeof obj === 'undefined') {\n    return;\n  }\n\n  // Force an array if not already something iterable\n  if (typeof obj !== 'object') {\n    /*eslint no-param-reassign:0*/\n    obj = [obj];\n  }\n\n  if (isArray(obj)) {\n    // Iterate over array values\n    for (var i = 0, l = obj.length; i < l; i++) {\n      fn.call(null, obj[i], i, obj);\n    }\n  } else {\n    // Iterate over object keys\n    for (var key in obj) {\n      if (Object.prototype.hasOwnProperty.call(obj, key)) {\n        fn.call(null, obj[key], key, obj);\n      }\n    }\n  }\n}\n\n/**\n * Accepts varargs expecting each argument to be an object, then\n * immutably merges the properties of each object and returns result.\n *\n * When multiple objects contain the same key the later object in\n * the arguments list will take precedence.\n *\n * Example:\n *\n * ```js\n * var result = merge({foo: 123}, {foo: 456});\n * console.log(result.foo); // outputs 456\n * ```\n *\n * @param {Object} obj1 Object to merge\n * @returns {Object} Result of all merge properties\n */\nfunction merge(/* obj1, obj2, obj3, ... */) {\n  var result = {};\n  function assignValue(val, key) {\n    if (isPlainObject(result[key]) && isPlainObject(val)) {\n      result[key] = merge(result[key], val);\n    } else if (isPlainObject(val)) {\n      result[key] = merge({}, val);\n    } else if (isArray(val)) {\n      result[key] = val.slice();\n    } else {\n      result[key] = val;\n    }\n  }\n\n  for (var i = 0, l = arguments.length; i < l; i++) {\n    forEach(arguments[i], assignValue);\n  }\n  return result;\n}\n\n/**\n * Extends object a by mutably adding to it the properties of object b.\n *\n * @param {Object} a The object to be extended\n * @param {Object} b The object to copy properties from\n * @param {Object} thisArg The object to bind function to\n * @return {Object} The resulting value of object a\n */\nfunction extend(a, b, thisArg) {\n  forEach(b, function assignValue(val, key) {\n    if (thisArg && typeof val === 'function') {\n      a[key] = bind(val, thisArg);\n    } else {\n      a[key] = val;\n    }\n  });\n  return a;\n}\n\n/**\n * Remove byte order marker. This catches EF BB BF (the UTF-8 BOM)\n *\n * @param {string} content with BOM\n * @return {string} content value without BOM\n */\nfunction stripBOM(content) {\n  if (content.charCodeAt(0) === 0xFEFF) {\n    content = content.slice(1);\n  }\n  return content;\n}\n\nmodule.exports = {\n  isArray: isArray,\n  isArrayBuffer: isArrayBuffer,\n  isBuffer: isBuffer,\n  isFormData: isFormData,\n  isArrayBufferView: isArrayBufferView,\n  isString: isString,\n  isNumber: isNumber,\n  isObject: isObject,\n  isPlainObject: isPlainObject,\n  isUndefined: isUndefined,\n  isDate: isDate,\n  isFile: isFile,\n  isBlob: isBlob,\n  isFunction: isFunction,\n  isStream: isStream,\n  isURLSearchParams: isURLSearchParams,\n  isStandardBrowserEnv: isStandardBrowserEnv,\n  forEach: forEach,\n  merge: merge,\n  extend: extend,\n  trim: trim,\n  stripBOM: stripBOM\n};\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _Constants=require('../constants/Constants');var _Constants2=_interopRequireDefault(_Constants);var _MetricsConstants=require('../constants/MetricsConstants');var _MetricsConstants2=_interopRequireDefault(_MetricsConstants);var _MetricsList=require('../vo/MetricsList');var _MetricsList2=_interopRequireDefault(_MetricsList);var _HTTPRequest=require('../vo/metrics/HTTPRequest');var _RepresentationSwitch=require('../vo/metrics/RepresentationSwitch');var _RepresentationSwitch2=_interopRequireDefault(_RepresentationSwitch);var _BufferLevel=require('../vo/metrics/BufferLevel');var _BufferLevel2=_interopRequireDefault(_BufferLevel);var _BufferState=require('../vo/metrics/BufferState');var _BufferState2=_interopRequireDefault(_BufferState);var _DVRInfo=require('../vo/metrics/DVRInfo');var _DVRInfo2=_interopRequireDefault(_DVRInfo);var _DroppedFrames=require('../vo/metrics/DroppedFrames');var _DroppedFrames2=_interopRequireDefault(_DroppedFrames);var _ManifestUpdate=require('../vo/metrics/ManifestUpdate');var _SchedulingInfo=require('../vo/metrics/SchedulingInfo');var _SchedulingInfo2=_interopRequireDefault(_SchedulingInfo);var _EventBus=require('../../core/EventBus');var _EventBus2=_interopRequireDefault(_EventBus);var _RequestsQueue=require('../vo/metrics/RequestsQueue');var _RequestsQueue2=_interopRequireDefault(_RequestsQueue);var _Events=require('../../core/events/Events');var _Events2=_interopRequireDefault(_Events);var _FactoryMaker=require('../../core/FactoryMaker');var _FactoryMaker2=_interopRequireDefault(_FactoryMaker);function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}function MetricsModel(config){config=config||{};var settings=config.settings;var context=this.context;var eventBus=(0,_EventBus2.default)(context).getInstance();var instance=void 0,streamMetrics=void 0;function setup(){streamMetrics={};}function metricsChanged(){eventBus.trigger(_Events2.default.METRICS_CHANGED);}function metricChanged(mediaType){eventBus.trigger(_Events2.default.METRIC_CHANGED,{mediaType:mediaType});metricsChanged();}function metricUpdated(mediaType,metricType,vo){eventBus.trigger(_Events2.default.METRIC_UPDATED,{mediaType:mediaType,metric:metricType,value:vo});metricChanged(mediaType);}function metricAdded(mediaType,metricType,vo){eventBus.trigger(_Events2.default.METRIC_ADDED,{mediaType:mediaType,metric:metricType,value:vo});metricChanged(mediaType);}function clearCurrentMetricsForType(type){delete streamMetrics[type];metricChanged(type);}function clearAllCurrentMetrics(){streamMetrics={};metricsChanged();}function getMetricsFor(type,readOnly){var metrics=null;if(!type){return metrics;}if(streamMetrics.hasOwnProperty(type)){metrics=streamMetrics[type];}else if(!readOnly){metrics=new _MetricsList2.default();streamMetrics[type]=metrics;}return metrics;}function pushMetrics(type,list,value){var metrics=getMetricsFor(type);if(metrics!==null){metrics[list].push(value);if(metrics[list].length>settings.get().streaming.metricsMaxListDepth){metrics[list].shift();}}}function appendHttpTrace(httpRequest,s,d,b){var vo=new _HTTPRequest.HTTPRequestTrace();vo.s=s;vo.d=d;vo.b=b;httpRequest.trace.push(vo);if(!httpRequest.interval){httpRequest.interval=0;}httpRequest.interval+=d;return vo;}function addHttpRequest(mediaType,tcpid,type,url,quality,actualurl,serviceLocation,range,trequest,tresponse,tfinish,responsecode,mediaduration,responseHeaders,traces){var vo=new _HTTPRequest.HTTPRequest();// ISO 23009-1 D.4.3 NOTE 2:\n// All entries for a given object will have the same URL and range\n// and so can easily be correlated. If there were redirects or\n// failures there will be one entry for each redirect/failure.\n// The redirect-to URL or alternative url (where multiple have been\n// provided in the MPD) will appear as the actualurl of the next\n// entry with the same url value.\nif(actualurl&&actualurl!==url){// given the above, add an entry for the original request\naddHttpRequest(mediaType,null,type,url,quality,null,null,range,trequest,null,// unknown\nnull,// unknown\nnull,// unknown, probably a 302\nmediaduration,null,null);vo.actualurl=actualurl;}vo.tcpid=tcpid;vo.type=type;vo.url=url;vo.range=range;vo.trequest=trequest;vo.tresponse=tresponse;vo.responsecode=responsecode;vo._tfinish=tfinish;vo._stream=mediaType;vo._mediaduration=mediaduration;vo._quality=quality;vo._responseHeaders=responseHeaders;vo._serviceLocation=serviceLocation;if(traces){traces.forEach(function(trace){appendHttpTrace(vo,trace.s,trace.d,trace.b);});}else{// The interval and trace shall be absent for redirect and failure records.\ndelete vo.interval;delete vo.trace;}pushAndNotify(mediaType,_MetricsConstants2.default.HTTP_REQUEST,vo);}function addRepresentationSwitch(mediaType,t,mt,to,lto){var vo=new _RepresentationSwitch2.default();vo.t=t;vo.mt=mt;vo.to=to;if(lto){vo.lto=lto;}else{delete vo.lto;}pushAndNotify(mediaType,_MetricsConstants2.default.TRACK_SWITCH,vo);}function pushAndNotify(mediaType,metricType,metricObject){pushMetrics(mediaType,metricType,metricObject);metricAdded(mediaType,metricType,metricObject);}function addBufferLevel(mediaType,t,level){var vo=new _BufferLevel2.default();vo.t=t;vo.level=level;pushAndNotify(mediaType,_MetricsConstants2.default.BUFFER_LEVEL,vo);}function addBufferState(mediaType,state,target){var vo=new _BufferState2.default();vo.target=target;vo.state=state;pushAndNotify(mediaType,_MetricsConstants2.default.BUFFER_STATE,vo);}function addDVRInfo(mediaType,currentTime,mpd,range){var vo=new _DVRInfo2.default();vo.time=currentTime;vo.range=range;vo.manifestInfo=mpd;pushAndNotify(mediaType,_MetricsConstants2.default.DVR_INFO,vo);}function addDroppedFrames(mediaType,quality){var vo=new _DroppedFrames2.default();var list=getMetricsFor(mediaType).DroppedFrames;if(!quality){return;}vo.time=quality.creationTime;vo.droppedFrames=quality.droppedVideoFrames;if(list.length>0&&list[list.length-1]==vo){return;}pushAndNotify(mediaType,_MetricsConstants2.default.DROPPED_FRAMES,vo);}function addSchedulingInfo(mediaType,t,type,startTime,availabilityStartTime,duration,quality,range,state){var vo=new _SchedulingInfo2.default();vo.mediaType=mediaType;vo.t=t;vo.type=type;vo.startTime=startTime;vo.availabilityStartTime=availabilityStartTime;vo.duration=duration;vo.quality=quality;vo.range=range;vo.state=state;pushAndNotify(mediaType,_MetricsConstants2.default.SCHEDULING_INFO,vo);}function addRequestsQueue(mediaType,loadingRequests,executedRequests){var vo=new _RequestsQueue2.default();vo.loadingRequests=loadingRequests;vo.executedRequests=executedRequests;getMetricsFor(mediaType).RequestsQueue=vo;metricAdded(mediaType,_MetricsConstants2.default.REQUESTS_QUEUE,vo);}function addManifestUpdate(mediaType,type,requestTime,fetchTime,availabilityStartTime,presentationStartTime,clientTimeOffset,currentTime,buffered,latency){var vo=new _ManifestUpdate.ManifestUpdate();vo.mediaType=mediaType;vo.type=type;vo.requestTime=requestTime;// when this manifest update was requested\nvo.fetchTime=fetchTime;// when this manifest update was received\nvo.availabilityStartTime=availabilityStartTime;vo.presentationStartTime=presentationStartTime;// the seek point (liveEdge for dynamic, Stream[0].startTime for static)\nvo.clientTimeOffset=clientTimeOffset;// the calculated difference between the server and client wall clock time\nvo.currentTime=currentTime;// actual element.currentTime\nvo.buffered=buffered;// actual element.ranges\nvo.latency=latency;// (static is fixed value of zero. dynamic should be ((Now-@availabilityStartTime) - currentTime)\npushMetrics(_Constants2.default.STREAM,_MetricsConstants2.default.MANIFEST_UPDATE,vo);metricAdded(mediaType,_MetricsConstants2.default.MANIFEST_UPDATE,vo);}function updateManifestUpdateInfo(manifestUpdate,updatedFields){if(manifestUpdate){for(var field in updatedFields){manifestUpdate[field]=updatedFields[field];}metricUpdated(manifestUpdate.mediaType,_MetricsConstants2.default.MANIFEST_UPDATE,manifestUpdate);}}function addManifestUpdateStreamInfo(manifestUpdate,id,index,start,duration){if(manifestUpdate){var vo=new _ManifestUpdate.ManifestUpdateStreamInfo();vo.id=id;vo.index=index;vo.start=start;vo.duration=duration;manifestUpdate.streamInfo.push(vo);metricUpdated(manifestUpdate.mediaType,_MetricsConstants2.default.MANIFEST_UPDATE_STREAM_INFO,manifestUpdate);}}function addManifestUpdateRepresentationInfo(manifestUpdate,id,index,streamIndex,mediaType,presentationTimeOffset,startNumber,fragmentInfoType){if(manifestUpdate&&manifestUpdate.representationInfo){var vo=new _ManifestUpdate.ManifestUpdateRepresentationInfo();vo.id=id;vo.index=index;vo.streamIndex=streamIndex;vo.mediaType=mediaType;vo.startNumber=startNumber;vo.fragmentInfoType=fragmentInfoType;vo.presentationTimeOffset=presentationTimeOffset;manifestUpdate.representationInfo.push(vo);metricUpdated(manifestUpdate.mediaType,_MetricsConstants2.default.MANIFEST_UPDATE_TRACK_INFO,manifestUpdate);}}function addPlayList(vo){if(vo.trace&&Array.isArray(vo.trace)){vo.trace.forEach(function(trace){if(trace.hasOwnProperty('subreplevel')&&!trace.subreplevel){delete trace.subreplevel;}});}else{delete vo.trace;}pushAndNotify(_Constants2.default.STREAM,_MetricsConstants2.default.PLAY_LIST,vo);}function addDVBErrors(vo){pushAndNotify(_Constants2.default.STREAM,_MetricsConstants2.default.DVB_ERRORS,vo);}instance={clearCurrentMetricsForType:clearCurrentMetricsForType,clearAllCurrentMetrics:clearAllCurrentMetrics,getMetricsFor:getMetricsFor,addHttpRequest:addHttpRequest,addRepresentationSwitch:addRepresentationSwitch,addBufferLevel:addBufferLevel,addBufferState:addBufferState,addDVRInfo:addDVRInfo,addDroppedFrames:addDroppedFrames,addSchedulingInfo:addSchedulingInfo,addRequestsQueue:addRequestsQueue,addManifestUpdate:addManifestUpdate,updateManifestUpdateInfo:updateManifestUpdateInfo,addManifestUpdateStreamInfo:addManifestUpdateStreamInfo,addManifestUpdateRepresentationInfo:addManifestUpdateRepresentationInfo,addPlayList:addPlayList,addDVBErrors:addDVBErrors};setup();return instance;}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n */MetricsModel.__dashjs_factory_name='MetricsModel';exports.default=_FactoryMaker2.default.getSingletonFactory(MetricsModel);\n//# sourceMappingURL=MetricsModel.js.map\n","var toString = {}.toString;\n\nmodule.exports = function (it) {\n  return toString.call(it).slice(8, -1);\n};\n","var global = require('../internals/global');\nvar setGlobal = require('../internals/set-global');\n\nvar SHARED = '__core-js_shared__';\nvar store = global[SHARED] || setGlobal(SHARED, {});\n\nmodule.exports = store;\n","\"use strict\";Object.defineProperty(exports,\"__esModule\",{value:true});function _classCallCheck(instance,Constructor){if(!(instance instanceof Constructor)){throw new TypeError(\"Cannot call a class as a function\");}}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n *//**\n * @class\n * @ignore\n */var Range=function Range(){_classCallCheck(this,Range);// as defined in ISO23009-1\nthis.starttime=0;this.duration=Infinity;// for internal use\nthis._useWallClockTime=false;};exports.default=Range;\n//# sourceMappingURL=Range.js.map\n","'use strict';\n\nvar isArray = Array.isArray;\nvar keyList = Object.keys;\nvar hasProp = Object.prototype.hasOwnProperty;\n\nmodule.exports = function equal(a, b) {\n  if (a === b) return true;\n\n  if (a && b && typeof a == 'object' && typeof b == 'object') {\n    var arrA = isArray(a)\n      , arrB = isArray(b)\n      , i\n      , length\n      , key;\n\n    if (arrA && arrB) {\n      length = a.length;\n      if (length != b.length) return false;\n      for (i = length; i-- !== 0;)\n        if (!equal(a[i], b[i])) return false;\n      return true;\n    }\n\n    if (arrA != arrB) return false;\n\n    var dateA = a instanceof Date\n      , dateB = b instanceof Date;\n    if (dateA != dateB) return false;\n    if (dateA && dateB) return a.getTime() == b.getTime();\n\n    var regexpA = a instanceof RegExp\n      , regexpB = b instanceof RegExp;\n    if (regexpA != regexpB) return false;\n    if (regexpA && regexpB) return a.toString() == b.toString();\n\n    var keys = keyList(a);\n    length = keys.length;\n\n    if (length !== keyList(b).length)\n      return false;\n\n    for (i = length; i-- !== 0;)\n      if (!hasProp.call(b, keys[i])) return false;\n\n    for (i = length; i-- !== 0;) {\n      key = keys[i];\n      if (!equal(a[key], b[key])) return false;\n    }\n\n    return true;\n  }\n\n  return a!==a && b!==b;\n};\n","'use strict';\n\nvar utils = require('../utils');\n\nmodule.exports = function normalizeHeaderName(headers, normalizedName) {\n  utils.forEach(headers, function processHeader(value, name) {\n    if (name !== normalizedName && name.toUpperCase() === normalizedName.toUpperCase()) {\n      headers[normalizedName] = value;\n      delete headers[name];\n    }\n  });\n};\n","var g;\n\n// This works in non-strict mode\ng = (function() {\n\treturn this;\n})();\n\ntry {\n\t// This works if eval is allowed (see CSP)\n\tg = g || new Function(\"return this\")();\n} catch (e) {\n\t// This works if the window reference is available\n\tif (typeof window === \"object\") g = window;\n}\n\n// g can still be undefined, but nothing to do about it...\n// We return undefined, instead of nothing here, so it's\n// easier to handle this case. if(!global) { ...}\n\nmodule.exports = g;\n","function _assertThisInitialized(self) {\n  if (self === void 0) {\n    throw new ReferenceError(\"this hasn't been initialised - super() hasn't been called\");\n  }\n\n  return self;\n}\n\nmodule.exports = _assertThisInitialized;\nmodule.exports[\"default\"] = module.exports, module.exports.__esModule = true;","'use strict';\nvar $ = require('../internals/export');\nvar $indexOf = require('../internals/array-includes').indexOf;\nvar arrayMethodIsStrict = require('../internals/array-method-is-strict');\nvar arrayMethodUsesToLength = require('../internals/array-method-uses-to-length');\n\nvar nativeIndexOf = [].indexOf;\n\nvar NEGATIVE_ZERO = !!nativeIndexOf && 1 / [1].indexOf(1, -0) < 0;\nvar STRICT_METHOD = arrayMethodIsStrict('indexOf');\nvar USES_TO_LENGTH = arrayMethodUsesToLength('indexOf', { ACCESSORS: true, 1: 0 });\n\n// `Array.prototype.indexOf` method\n// https://tc39.github.io/ecma262/#sec-array.prototype.indexof\n$({ target: 'Array', proto: true, forced: NEGATIVE_ZERO || !STRICT_METHOD || !USES_TO_LENGTH }, {\n  indexOf: function indexOf(searchElement /* , fromIndex = 0 */) {\n    return NEGATIVE_ZERO\n      // convert -0 to +0\n      ? nativeIndexOf.apply(this, arguments) || 0\n      : $indexOf(this, searchElement, arguments.length > 1 ? arguments[1] : undefined);\n  }\n});\n","var has = require('../internals/has');\nvar toIndexedObject = require('../internals/to-indexed-object');\nvar indexOf = require('../internals/array-includes').indexOf;\nvar hiddenKeys = require('../internals/hidden-keys');\n\nmodule.exports = function (object, names) {\n  var O = toIndexedObject(object);\n  var i = 0;\n  var result = [];\n  var key;\n  for (key in O) !has(hiddenKeys, key) && has(O, key) && result.push(key);\n  // Don't enum bug & hidden keys\n  while (names.length > i) if (has(O, key = names[i++])) {\n    ~indexOf(result, key) || result.push(key);\n  }\n  return result;\n};\n","\"use strict\";Object.defineProperty(exports,\"__esModule\",{value:true});function _classCallCheck(instance,Constructor){if(!(instance instanceof Constructor)){throw new TypeError(\"Cannot call a class as a function\");}}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n *//**\n * @class\n * @ignore\n */var BitrateInfo=function BitrateInfo(){_classCallCheck(this,BitrateInfo);this.mediaType=null;this.bitrate=null;this.width=null;this.height=null;this.scanType=null;this.qualityIndex=NaN;};exports.default=BitrateInfo;\n//# sourceMappingURL=BitrateInfo.js.map\n","var global = require('../internals/global');\nvar isObject = require('../internals/is-object');\n\nvar document = global.document;\n// typeof document.createElement is 'object' in old IE\nvar EXISTS = isObject(document) && isObject(document.createElement);\n\nmodule.exports = function (it) {\n  return EXISTS ? document.createElement(it) : {};\n};\n","var topLevel = typeof global !== 'undefined' ? global :\n    typeof window !== 'undefined' ? window : {}\nvar minDoc = require('min-document');\n\nvar doccy;\n\nif (typeof document !== 'undefined') {\n    doccy = document;\n} else {\n    doccy = topLevel['__GLOBAL_DOCUMENT_CACHE@4'];\n\n    if (!doccy) {\n        doccy = topLevel['__GLOBAL_DOCUMENT_CACHE@4'] = minDoc;\n    }\n}\n\nmodule.exports = doccy;\n","var $ = require('../internals/export');\nvar assign = require('../internals/object-assign');\n\n// `Object.assign` method\n// https://tc39.github.io/ecma262/#sec-object.assign\n$({ target: 'Object', stat: true, forced: Object.assign !== assign }, {\n  assign: assign\n});\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _FactoryMaker=require('../../core/FactoryMaker');var _FactoryMaker2=_interopRequireDefault(_FactoryMaker);var _HTTPLoader=require('../../streaming/net/HTTPLoader');var _HTTPLoader2=_interopRequireDefault(_HTTPLoader);function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}/**\n * @module\n * @description Choose right url loader for scheme\n\n *//**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n */function SchemeLoaderFactory(){var instance=void 0;var schemeLoaderMap=void 0;function registerLoader(scheme,loader){schemeLoaderMap[scheme]=loader;}function unregisterLoader(scheme){if(schemeLoaderMap[scheme]){delete schemeLoaderMap[scheme];}}function unregisterAllLoader(){schemeLoaderMap={};}function getLoader(url){// iterates through schemeLoaderMap to find a loader for the scheme\nfor(var scheme in schemeLoaderMap){if(schemeLoaderMap.hasOwnProperty(scheme)&&url.startsWith(scheme)){return schemeLoaderMap[scheme];}}return _HTTPLoader2.default;}function reset(){unregisterAllLoader();}function setup(){reset();}setup();instance={getLoader:getLoader,registerLoader:registerLoader,unregisterLoader:unregisterLoader,unregisterAllLoader:unregisterAllLoader,reset:reset};return instance;}SchemeLoaderFactory.__dashjs_factory_name='SchemeLoaderFactory';var factory=_FactoryMaker2.default.getSingletonFactory(SchemeLoaderFactory);exports.default=factory;\n//# sourceMappingURL=SchemeLoaderFactory.js.map\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _Constants=require('../constants/Constants');var _Constants2=_interopRequireDefault(_Constants);var _FactoryMaker=require('../../core/FactoryMaker');var _FactoryMaker2=_interopRequireDefault(_FactoryMaker);var _BufferController=require('./../controllers/BufferController');var _BufferController2=_interopRequireDefault(_BufferController);var _NotFragmentedTextBufferController=require('./NotFragmentedTextBufferController');var _NotFragmentedTextBufferController2=_interopRequireDefault(_NotFragmentedTextBufferController);function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n */function TextBufferController(config){config=config||{};var context=this.context;var _BufferControllerImpl=void 0,instance=void 0;function setup(){// according to text type, we create corresponding buffer controller\nif(config.type===_Constants2.default.FRAGMENTED_TEXT){// in this case, internal buffer ocntroller is a classical BufferController object\n_BufferControllerImpl=(0,_BufferController2.default)(context).create({type:config.type,dashMetrics:config.dashMetrics,mediaPlayerModel:config.mediaPlayerModel,manifestModel:config.manifestModel,errHandler:config.errHandler,streamController:config.streamController,mediaController:config.mediaController,adapter:config.adapter,textController:config.textController,abrController:config.abrController,playbackController:config.playbackController,streamProcessor:config.streamProcessor,settings:config.settings});}else{// in this case, internal buffer controller is a not fragmented text controller object\n_BufferControllerImpl=(0,_NotFragmentedTextBufferController2.default)(context).create({type:config.type,mimeType:config.mimeType,errHandler:config.errHandler,streamProcessor:config.streamProcessor});}}function getBufferControllerType(){return _BufferControllerImpl.getBufferControllerType();}function initialize(source,StreamProcessor){return _BufferControllerImpl.initialize(source,StreamProcessor);}/**\n     * @param {MediaInfo }mediaInfo\n     * @returns {Object} SourceBuffer object\n     * @memberof BufferController#\n     */function createBuffer(mediaInfo){return _BufferControllerImpl.createBuffer(mediaInfo);}function getType(){return _BufferControllerImpl.getType();}function getBuffer(){return _BufferControllerImpl.getBuffer();}function setBuffer(value){_BufferControllerImpl.setBuffer(value);}function getMediaSource(){return _BufferControllerImpl.getMediaSource();}function setMediaSource(value){_BufferControllerImpl.setMediaSource(value);}function getStreamProcessor(){_BufferControllerImpl.getStreamProcessor();}function setSeekStartTime(value){_BufferControllerImpl.setSeekStartTime(value);}function getBufferLevel(){return _BufferControllerImpl.getBufferLevel();}function reset(errored){_BufferControllerImpl.reset(errored);}function getIsBufferingCompleted(){return _BufferControllerImpl.getIsBufferingCompleted();}function switchInitData(streamId,representationId){_BufferControllerImpl.switchInitData(streamId,representationId);}function getIsPruningInProgress(){return _BufferControllerImpl.getIsPruningInProgress();}function dischargePreBuffer(){return _BufferControllerImpl.dischargePreBuffer();}function getRangeAt(time){return _BufferControllerImpl.getRangeAt(time);}function updateTimestampOffset(MSETimeOffset){var buffer=getBuffer();if(buffer.timestampOffset!==MSETimeOffset&&!isNaN(MSETimeOffset)){buffer.timestampOffset=MSETimeOffset;}}instance={getBufferControllerType:getBufferControllerType,initialize:initialize,createBuffer:createBuffer,getType:getType,getStreamProcessor:getStreamProcessor,setSeekStartTime:setSeekStartTime,getBuffer:getBuffer,setBuffer:setBuffer,getBufferLevel:getBufferLevel,setMediaSource:setMediaSource,getMediaSource:getMediaSource,getIsBufferingCompleted:getIsBufferingCompleted,getIsPruningInProgress:getIsPruningInProgress,dischargePreBuffer:dischargePreBuffer,switchInitData:switchInitData,getRangeAt:getRangeAt,reset:reset,updateTimestampOffset:updateTimestampOffset};setup();return instance;}TextBufferController.__dashjs_factory_name='TextBufferController';exports.default=_FactoryMaker2.default.getClassFactory(TextBufferController);\n//# sourceMappingURL=TextBufferController.js.map\n","var anObject = require('../internals/an-object');\nvar isObject = require('../internals/is-object');\nvar newPromiseCapability = require('../internals/new-promise-capability');\n\nmodule.exports = function (C, x) {\n  anObject(C);\n  if (isObject(x) && x.constructor === C) return x;\n  var promiseCapability = newPromiseCapability.f(C);\n  var resolve = promiseCapability.resolve;\n  resolve(x);\n  return promiseCapability.promise;\n};\n","var global = require('../internals/global');\nvar createNonEnumerableProperty = require('../internals/create-non-enumerable-property');\n\nmodule.exports = function (key, value) {\n  try {\n    createNonEnumerableProperty(global, key, value);\n  } catch (error) {\n    global[key] = value;\n  } return value;\n};\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _FactoryMaker=require('../../core/FactoryMaker');var _FactoryMaker2=_interopRequireDefault(_FactoryMaker);var _Constants=require('../constants/Constants');var _Constants2=_interopRequireDefault(_Constants);var _Thumbnail=require('../vo/Thumbnail');var _Thumbnail2=_interopRequireDefault(_Thumbnail);var _ThumbnailTracks=require('./ThumbnailTracks');var _ThumbnailTracks2=_interopRequireDefault(_ThumbnailTracks);var _BitrateInfo=require('../vo/BitrateInfo');var _BitrateInfo2=_interopRequireDefault(_BitrateInfo);var _SegmentsUtils=require('../../dash/utils/SegmentsUtils');function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n */function ThumbnailController(config){var context=this.context;var instance=void 0,thumbnailTracks=void 0;function setup(){reset();thumbnailTracks=(0,_ThumbnailTracks2.default)(context).create({adapter:config.adapter,baseURLController:config.baseURLController,stream:config.stream,timelineConverter:config.timelineConverter,debug:config.debug,eventBus:config.eventBus,events:config.events,dashConstants:config.dashConstants});}function getThumbnail(time,callback){var track=thumbnailTracks.getCurrentTrack();var offset=void 0,request=void 0;if(!track||track.segmentDuration<=0||time===undefined||time===null){return null;}// Calculate index of the sprite given a time\nif(isNaN(track.segmentDuration)){request=thumbnailTracks.getThumbnailRequestForTime(time);if(request){track.segmentDuration=request.duration;}}offset=time%track.segmentDuration;var thumbIndex=Math.floor(offset*track.tilesHor*track.tilesVert/track.segmentDuration);// Create and return the thumbnail\nvar thumbnail=new _Thumbnail2.default();thumbnail.width=Math.floor(track.widthPerTile);thumbnail.height=Math.floor(track.heightPerTile);thumbnail.x=Math.floor(thumbIndex%track.tilesHor)*track.widthPerTile;thumbnail.y=Math.floor(thumbIndex/track.tilesHor)*track.heightPerTile;if('readThumbnail'in track){return track.readThumbnail(time,function(url){thumbnail.url=url;if(callback)callback(thumbnail);});}else{if(!request){var seq=Math.floor(time/track.segmentDuration);thumbnail.url=buildUrlFromTemplate(track,seq);}else{thumbnail.url=request.url;track.segmentDuration=NaN;}if(callback)callback(thumbnail);return thumbnail;}}function buildUrlFromTemplate(track,seq){var seqIdx=seq+track.startNumber;var url=(0,_SegmentsUtils.replaceTokenForTemplate)(track.templateUrl,'Number',seqIdx);url=(0,_SegmentsUtils.replaceTokenForTemplate)(url,'Time',(seqIdx-1)*track.segmentDuration);url=(0,_SegmentsUtils.replaceTokenForTemplate)(url,'Bandwidth',track.bandwidth);return(0,_SegmentsUtils.unescapeDollarsInTemplate)(url);}function setTrackByIndex(index){thumbnailTracks.setTrackByIndex(index);}function getCurrentTrackIndex(){return thumbnailTracks.getCurrentTrackIndex();}function getBitrateList(){var tracks=thumbnailTracks.getTracks();var i=0;return tracks.map(function(t){var bitrateInfo=new _BitrateInfo2.default();bitrateInfo.mediaType=_Constants2.default.IMAGE;bitrateInfo.qualityIndex=i++;bitrateInfo.bitrate=t.bitrate;bitrateInfo.width=t.width;bitrateInfo.height=t.height;return bitrateInfo;});}function reset(){if(thumbnailTracks){thumbnailTracks.reset();}}instance={get:getThumbnail,setTrackByIndex:setTrackByIndex,getCurrentTrackIndex:getCurrentTrackIndex,getBitrateList:getBitrateList,reset:reset};setup();return instance;}ThumbnailController.__dashjs_factory_name='ThumbnailController';exports.default=_FactoryMaker2.default.getClassFactory(ThumbnailController);\n//# sourceMappingURL=ThumbnailController.js.map\n","'use strict';\n\nvar utils = require('./utils');\nvar bind = require('./helpers/bind');\nvar Axios = require('./core/Axios');\nvar mergeConfig = require('./core/mergeConfig');\nvar defaults = require('./defaults');\n\n/**\n * Create an instance of Axios\n *\n * @param {Object} defaultConfig The default config for the instance\n * @return {Axios} A new instance of Axios\n */\nfunction createInstance(defaultConfig) {\n  var context = new Axios(defaultConfig);\n  var instance = bind(Axios.prototype.request, context);\n\n  // Copy axios.prototype to instance\n  utils.extend(instance, Axios.prototype, context);\n\n  // Copy context to instance\n  utils.extend(instance, context);\n\n  return instance;\n}\n\n// Create the default instance to be exported\nvar axios = createInstance(defaults);\n\n// Expose Axios class to allow class inheritance\naxios.Axios = Axios;\n\n// Factory for creating new instances\naxios.create = function create(instanceConfig) {\n  return createInstance(mergeConfig(axios.defaults, instanceConfig));\n};\n\n// Expose Cancel & CancelToken\naxios.Cancel = require('./cancel/Cancel');\naxios.CancelToken = require('./cancel/CancelToken');\naxios.isCancel = require('./cancel/isCancel');\n\n// Expose all/spread\naxios.all = function all(promises) {\n  return Promise.all(promises);\n};\naxios.spread = require('./helpers/spread');\n\n// Expose isAxiosError\naxios.isAxiosError = require('./helpers/isAxiosError');\n\nmodule.exports = axios;\n\n// Allow use of default import syntax in TypeScript\nmodule.exports.default = axios;\n","module.exports = {};\n","/**\n * Copyright 2013 vtt.js Contributors\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\n/* -*- Mode: Java; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */\n/* vim: set shiftwidth=2 tabstop=2 autoindent cindent expandtab: */\nvar document = require('global/document');\n\nvar _objCreate = Object.create || (function() {\n  function F() {}\n  return function(o) {\n    if (arguments.length !== 1) {\n      throw new Error('Object.create shim only accepts one parameter.');\n    }\n    F.prototype = o;\n    return new F();\n  };\n})();\n\n// Creates a new ParserError object from an errorData object. The errorData\n// object should have default code and message properties. The default message\n// property can be overriden by passing in a message parameter.\n// See ParsingError.Errors below for acceptable errors.\nfunction ParsingError(errorData, message) {\n  this.name = \"ParsingError\";\n  this.code = errorData.code;\n  this.message = message || errorData.message;\n}\nParsingError.prototype = _objCreate(Error.prototype);\nParsingError.prototype.constructor = ParsingError;\n\n// ParsingError metadata for acceptable ParsingErrors.\nParsingError.Errors = {\n  BadSignature: {\n    code: 0,\n    message: \"Malformed WebVTT signature.\"\n  },\n  BadTimeStamp: {\n    code: 1,\n    message: \"Malformed time stamp.\"\n  }\n};\n\n// Try to parse input as a time stamp.\nfunction parseTimeStamp(input) {\n\n  function computeSeconds(h, m, s, f) {\n    return (h | 0) * 3600 + (m | 0) * 60 + (s | 0) + (f | 0) / 1000;\n  }\n\n  var m = input.match(/^(\\d+):(\\d{1,2})(:\\d{1,2})?\\.(\\d{3})/);\n  if (!m) {\n    return null;\n  }\n\n  if (m[3]) {\n    // Timestamp takes the form of [hours]:[minutes]:[seconds].[milliseconds]\n    return computeSeconds(m[1], m[2], m[3].replace(\":\", \"\"), m[4]);\n  } else if (m[1] > 59) {\n    // Timestamp takes the form of [hours]:[minutes].[milliseconds]\n    // First position is hours as it's over 59.\n    return computeSeconds(m[1], m[2], 0,  m[4]);\n  } else {\n    // Timestamp takes the form of [minutes]:[seconds].[milliseconds]\n    return computeSeconds(0, m[1], m[2], m[4]);\n  }\n}\n\n// A settings object holds key/value pairs and will ignore anything but the first\n// assignment to a specific key.\nfunction Settings() {\n  this.values = _objCreate(null);\n}\n\nSettings.prototype = {\n  // Only accept the first assignment to any key.\n  set: function(k, v) {\n    if (!this.get(k) && v !== \"\") {\n      this.values[k] = v;\n    }\n  },\n  // Return the value for a key, or a default value.\n  // If 'defaultKey' is passed then 'dflt' is assumed to be an object with\n  // a number of possible default values as properties where 'defaultKey' is\n  // the key of the property that will be chosen; otherwise it's assumed to be\n  // a single value.\n  get: function(k, dflt, defaultKey) {\n    if (defaultKey) {\n      return this.has(k) ? this.values[k] : dflt[defaultKey];\n    }\n    return this.has(k) ? this.values[k] : dflt;\n  },\n  // Check whether we have a value for a key.\n  has: function(k) {\n    return k in this.values;\n  },\n  // Accept a setting if its one of the given alternatives.\n  alt: function(k, v, a) {\n    for (var n = 0; n < a.length; ++n) {\n      if (v === a[n]) {\n        this.set(k, v);\n        break;\n      }\n    }\n  },\n  // Accept a setting if its a valid (signed) integer.\n  integer: function(k, v) {\n    if (/^-?\\d+$/.test(v)) { // integer\n      this.set(k, parseInt(v, 10));\n    }\n  },\n  // Accept a setting if its a valid percentage.\n  percent: function(k, v) {\n    var m;\n    if ((m = v.match(/^([\\d]{1,3})(\\.[\\d]*)?%$/))) {\n      v = parseFloat(v);\n      if (v >= 0 && v <= 100) {\n        this.set(k, v);\n        return true;\n      }\n    }\n    return false;\n  }\n};\n\n// Helper function to parse input into groups separated by 'groupDelim', and\n// interprete each group as a key/value pair separated by 'keyValueDelim'.\nfunction parseOptions(input, callback, keyValueDelim, groupDelim) {\n  var groups = groupDelim ? input.split(groupDelim) : [input];\n  for (var i in groups) {\n    if (typeof groups[i] !== \"string\") {\n      continue;\n    }\n    var kv = groups[i].split(keyValueDelim);\n    if (kv.length !== 2) {\n      continue;\n    }\n    var k = kv[0];\n    var v = kv[1];\n    callback(k, v);\n  }\n}\n\nfunction parseCue(input, cue, regionList) {\n  // Remember the original input if we need to throw an error.\n  var oInput = input;\n  // 4.1 WebVTT timestamp\n  function consumeTimeStamp() {\n    var ts = parseTimeStamp(input);\n    if (ts === null) {\n      throw new ParsingError(ParsingError.Errors.BadTimeStamp,\n                            \"Malformed timestamp: \" + oInput);\n    }\n    // Remove time stamp from input.\n    input = input.replace(/^[^\\sa-zA-Z-]+/, \"\");\n    return ts;\n  }\n\n  // 4.4.2 WebVTT cue settings\n  function consumeCueSettings(input, cue) {\n    var settings = new Settings();\n\n    parseOptions(input, function (k, v) {\n      switch (k) {\n      case \"region\":\n        // Find the last region we parsed with the same region id.\n        for (var i = regionList.length - 1; i >= 0; i--) {\n          if (regionList[i].id === v) {\n            settings.set(k, regionList[i].region);\n            break;\n          }\n        }\n        break;\n      case \"vertical\":\n        settings.alt(k, v, [\"rl\", \"lr\"]);\n        break;\n      case \"line\":\n        var vals = v.split(\",\"),\n            vals0 = vals[0];\n        settings.integer(k, vals0);\n        settings.percent(k, vals0) ? settings.set(\"snapToLines\", false) : null;\n        settings.alt(k, vals0, [\"auto\"]);\n        if (vals.length === 2) {\n          settings.alt(\"lineAlign\", vals[1], [\"start\", \"center\", \"end\"]);\n        }\n        break;\n      case \"position\":\n        vals = v.split(\",\");\n        settings.percent(k, vals[0]);\n        if (vals.length === 2) {\n          settings.alt(\"positionAlign\", vals[1], [\"start\", \"center\", \"end\"]);\n        }\n        break;\n      case \"size\":\n        settings.percent(k, v);\n        break;\n      case \"align\":\n        settings.alt(k, v, [\"start\", \"center\", \"end\", \"left\", \"right\"]);\n        break;\n      }\n    }, /:/, /\\s/);\n\n    // Apply default values for any missing fields.\n    cue.region = settings.get(\"region\", null);\n    cue.vertical = settings.get(\"vertical\", \"\");\n    try {\n      cue.line = settings.get(\"line\", \"auto\");\n    } catch (e) {}\n    cue.lineAlign = settings.get(\"lineAlign\", \"start\");\n    cue.snapToLines = settings.get(\"snapToLines\", true);\n    cue.size = settings.get(\"size\", 100);\n    // Safari still uses the old middle value and won't accept center\n    try {\n      cue.align = settings.get(\"align\", \"center\");\n    } catch (e) {\n      cue.align = settings.get(\"align\", \"middle\");\n    }\n    try {\n      cue.position = settings.get(\"position\", \"auto\");\n    } catch (e) {\n      cue.position = settings.get(\"position\", {\n        start: 0,\n        left: 0,\n        center: 50,\n        middle: 50,\n        end: 100,\n        right: 100\n      }, cue.align);\n    }\n\n\n    cue.positionAlign = settings.get(\"positionAlign\", {\n      start: \"start\",\n      left: \"start\",\n      center: \"center\",\n      middle: \"center\",\n      end: \"end\",\n      right: \"end\"\n    }, cue.align);\n  }\n\n  function skipWhitespace() {\n    input = input.replace(/^\\s+/, \"\");\n  }\n\n  // 4.1 WebVTT cue timings.\n  skipWhitespace();\n  cue.startTime = consumeTimeStamp();   // (1) collect cue start time\n  skipWhitespace();\n  if (input.substr(0, 3) !== \"-->\") {     // (3) next characters must match \"-->\"\n    throw new ParsingError(ParsingError.Errors.BadTimeStamp,\n                           \"Malformed time stamp (time stamps must be separated by '-->'): \" +\n                           oInput);\n  }\n  input = input.substr(3);\n  skipWhitespace();\n  cue.endTime = consumeTimeStamp();     // (5) collect cue end time\n\n  // 4.1 WebVTT cue settings list.\n  skipWhitespace();\n  consumeCueSettings(input, cue);\n}\n\n// When evaluating this file as part of a Webpack bundle for server\n// side rendering, `document` is an empty object.\nvar TEXTAREA_ELEMENT = document.createElement && document.createElement(\"textarea\");\n\nvar TAG_NAME = {\n  c: \"span\",\n  i: \"i\",\n  b: \"b\",\n  u: \"u\",\n  ruby: \"ruby\",\n  rt: \"rt\",\n  v: \"span\",\n  lang: \"span\"\n};\n\n// 5.1 default text color\n// 5.2 default text background color is equivalent to text color with bg_ prefix\nvar DEFAULT_COLOR_CLASS = {\n  white: 'rgba(255,255,255,1)',\n  lime: 'rgba(0,255,0,1)',\n  cyan: 'rgba(0,255,255,1)',\n  red: 'rgba(255,0,0,1)',\n  yellow: 'rgba(255,255,0,1)',\n  magenta: 'rgba(255,0,255,1)',\n  blue: 'rgba(0,0,255,1)',\n  black: 'rgba(0,0,0,1)'\n};\n\nvar TAG_ANNOTATION = {\n  v: \"title\",\n  lang: \"lang\"\n};\n\nvar NEEDS_PARENT = {\n  rt: \"ruby\"\n};\n\n// Parse content into a document fragment.\nfunction parseContent(window, input) {\n  function nextToken() {\n    // Check for end-of-string.\n    if (!input) {\n      return null;\n    }\n\n    // Consume 'n' characters from the input.\n    function consume(result) {\n      input = input.substr(result.length);\n      return result;\n    }\n\n    var m = input.match(/^([^<]*)(<[^>]*>?)?/);\n    // If there is some text before the next tag, return it, otherwise return\n    // the tag.\n    return consume(m[1] ? m[1] : m[2]);\n  }\n\n  function unescape(s) {\n    TEXTAREA_ELEMENT.innerHTML = s;\n    s = TEXTAREA_ELEMENT.textContent;\n    TEXTAREA_ELEMENT.textContent = \"\";\n    return s;\n  }\n\n  function shouldAdd(current, element) {\n    return !NEEDS_PARENT[element.localName] ||\n           NEEDS_PARENT[element.localName] === current.localName;\n  }\n\n  // Create an element for this tag.\n  function createElement(type, annotation) {\n    var tagName = TAG_NAME[type];\n    if (!tagName) {\n      return null;\n    }\n    var element = window.document.createElement(tagName);\n    var name = TAG_ANNOTATION[type];\n    if (name && annotation) {\n      element[name] = annotation.trim();\n    }\n    return element;\n  }\n\n  var rootDiv = window.document.createElement(\"div\"),\n      current = rootDiv,\n      t,\n      tagStack = [];\n\n  while ((t = nextToken()) !== null) {\n    if (t[0] === '<') {\n      if (t[1] === \"/\") {\n        // If the closing tag matches, move back up to the parent node.\n        if (tagStack.length &&\n            tagStack[tagStack.length - 1] === t.substr(2).replace(\">\", \"\")) {\n          tagStack.pop();\n          current = current.parentNode;\n        }\n        // Otherwise just ignore the end tag.\n        continue;\n      }\n      var ts = parseTimeStamp(t.substr(1, t.length - 2));\n      var node;\n      if (ts) {\n        // Timestamps are lead nodes as well.\n        node = window.document.createProcessingInstruction(\"timestamp\", ts);\n        current.appendChild(node);\n        continue;\n      }\n      var m = t.match(/^<([^.\\s/0-9>]+)(\\.[^\\s\\\\>]+)?([^>\\\\]+)?(\\\\?)>?$/);\n      // If we can't parse the tag, skip to the next tag.\n      if (!m) {\n        continue;\n      }\n      // Try to construct an element, and ignore the tag if we couldn't.\n      node = createElement(m[1], m[3]);\n      if (!node) {\n        continue;\n      }\n      // Determine if the tag should be added based on the context of where it\n      // is placed in the cuetext.\n      if (!shouldAdd(current, node)) {\n        continue;\n      }\n      // Set the class list (as a list of classes, separated by space).\n      if (m[2]) {\n        var classes = m[2].split('.');\n\n        classes.forEach(function(cl) {\n          var bgColor = /^bg_/.test(cl);\n          // slice out `bg_` if it's a background color\n          var colorName = bgColor ? cl.slice(3) : cl;\n\n          if (DEFAULT_COLOR_CLASS.hasOwnProperty(colorName)) {\n            var propName = bgColor ? 'background-color' : 'color';\n            var propValue = DEFAULT_COLOR_CLASS[colorName];\n\n            node.style[propName] = propValue;\n          }\n        });\n\n        node.className = classes.join(' ');\n      }\n      // Append the node to the current node, and enter the scope of the new\n      // node.\n      tagStack.push(m[1]);\n      current.appendChild(node);\n      current = node;\n      continue;\n    }\n\n    // Text nodes are leaf nodes.\n    current.appendChild(window.document.createTextNode(unescape(t)));\n  }\n\n  return rootDiv;\n}\n\n// This is a list of all the Unicode characters that have a strong\n// right-to-left category. What this means is that these characters are\n// written right-to-left for sure. It was generated by pulling all the strong\n// right-to-left characters out of the Unicode data table. That table can\n// found at: http://www.unicode.org/Public/UNIDATA/UnicodeData.txt\nvar strongRTLRanges = [[0x5be, 0x5be], [0x5c0, 0x5c0], [0x5c3, 0x5c3], [0x5c6, 0x5c6],\n [0x5d0, 0x5ea], [0x5f0, 0x5f4], [0x608, 0x608], [0x60b, 0x60b], [0x60d, 0x60d],\n [0x61b, 0x61b], [0x61e, 0x64a], [0x66d, 0x66f], [0x671, 0x6d5], [0x6e5, 0x6e6],\n [0x6ee, 0x6ef], [0x6fa, 0x70d], [0x70f, 0x710], [0x712, 0x72f], [0x74d, 0x7a5],\n [0x7b1, 0x7b1], [0x7c0, 0x7ea], [0x7f4, 0x7f5], [0x7fa, 0x7fa], [0x800, 0x815],\n [0x81a, 0x81a], [0x824, 0x824], [0x828, 0x828], [0x830, 0x83e], [0x840, 0x858],\n [0x85e, 0x85e], [0x8a0, 0x8a0], [0x8a2, 0x8ac], [0x200f, 0x200f],\n [0xfb1d, 0xfb1d], [0xfb1f, 0xfb28], [0xfb2a, 0xfb36], [0xfb38, 0xfb3c],\n [0xfb3e, 0xfb3e], [0xfb40, 0xfb41], [0xfb43, 0xfb44], [0xfb46, 0xfbc1],\n [0xfbd3, 0xfd3d], [0xfd50, 0xfd8f], [0xfd92, 0xfdc7], [0xfdf0, 0xfdfc],\n [0xfe70, 0xfe74], [0xfe76, 0xfefc], [0x10800, 0x10805], [0x10808, 0x10808],\n [0x1080a, 0x10835], [0x10837, 0x10838], [0x1083c, 0x1083c], [0x1083f, 0x10855],\n [0x10857, 0x1085f], [0x10900, 0x1091b], [0x10920, 0x10939], [0x1093f, 0x1093f],\n [0x10980, 0x109b7], [0x109be, 0x109bf], [0x10a00, 0x10a00], [0x10a10, 0x10a13],\n [0x10a15, 0x10a17], [0x10a19, 0x10a33], [0x10a40, 0x10a47], [0x10a50, 0x10a58],\n [0x10a60, 0x10a7f], [0x10b00, 0x10b35], [0x10b40, 0x10b55], [0x10b58, 0x10b72],\n [0x10b78, 0x10b7f], [0x10c00, 0x10c48], [0x1ee00, 0x1ee03], [0x1ee05, 0x1ee1f],\n [0x1ee21, 0x1ee22], [0x1ee24, 0x1ee24], [0x1ee27, 0x1ee27], [0x1ee29, 0x1ee32],\n [0x1ee34, 0x1ee37], [0x1ee39, 0x1ee39], [0x1ee3b, 0x1ee3b], [0x1ee42, 0x1ee42],\n [0x1ee47, 0x1ee47], [0x1ee49, 0x1ee49], [0x1ee4b, 0x1ee4b], [0x1ee4d, 0x1ee4f],\n [0x1ee51, 0x1ee52], [0x1ee54, 0x1ee54], [0x1ee57, 0x1ee57], [0x1ee59, 0x1ee59],\n [0x1ee5b, 0x1ee5b], [0x1ee5d, 0x1ee5d], [0x1ee5f, 0x1ee5f], [0x1ee61, 0x1ee62],\n [0x1ee64, 0x1ee64], [0x1ee67, 0x1ee6a], [0x1ee6c, 0x1ee72], [0x1ee74, 0x1ee77],\n [0x1ee79, 0x1ee7c], [0x1ee7e, 0x1ee7e], [0x1ee80, 0x1ee89], [0x1ee8b, 0x1ee9b],\n [0x1eea1, 0x1eea3], [0x1eea5, 0x1eea9], [0x1eeab, 0x1eebb], [0x10fffd, 0x10fffd]];\n\nfunction isStrongRTLChar(charCode) {\n  for (var i = 0; i < strongRTLRanges.length; i++) {\n    var currentRange = strongRTLRanges[i];\n    if (charCode >= currentRange[0] && charCode <= currentRange[1]) {\n      return true;\n    }\n  }\n\n  return false;\n}\n\nfunction determineBidi(cueDiv) {\n  var nodeStack = [],\n      text = \"\",\n      charCode;\n\n  if (!cueDiv || !cueDiv.childNodes) {\n    return \"ltr\";\n  }\n\n  function pushNodes(nodeStack, node) {\n    for (var i = node.childNodes.length - 1; i >= 0; i--) {\n      nodeStack.push(node.childNodes[i]);\n    }\n  }\n\n  function nextTextNode(nodeStack) {\n    if (!nodeStack || !nodeStack.length) {\n      return null;\n    }\n\n    var node = nodeStack.pop(),\n        text = node.textContent || node.innerText;\n    if (text) {\n      // TODO: This should match all unicode type B characters (paragraph\n      // separator characters). See issue #115.\n      var m = text.match(/^.*(\\n|\\r)/);\n      if (m) {\n        nodeStack.length = 0;\n        return m[0];\n      }\n      return text;\n    }\n    if (node.tagName === \"ruby\") {\n      return nextTextNode(nodeStack);\n    }\n    if (node.childNodes) {\n      pushNodes(nodeStack, node);\n      return nextTextNode(nodeStack);\n    }\n  }\n\n  pushNodes(nodeStack, cueDiv);\n  while ((text = nextTextNode(nodeStack))) {\n    for (var i = 0; i < text.length; i++) {\n      charCode = text.charCodeAt(i);\n      if (isStrongRTLChar(charCode)) {\n        return \"rtl\";\n      }\n    }\n  }\n  return \"ltr\";\n}\n\nfunction computeLinePos(cue) {\n  if (typeof cue.line === \"number\" &&\n      (cue.snapToLines || (cue.line >= 0 && cue.line <= 100))) {\n    return cue.line;\n  }\n  if (!cue.track || !cue.track.textTrackList ||\n      !cue.track.textTrackList.mediaElement) {\n    return -1;\n  }\n  var track = cue.track,\n      trackList = track.textTrackList,\n      count = 0;\n  for (var i = 0; i < trackList.length && trackList[i] !== track; i++) {\n    if (trackList[i].mode === \"showing\") {\n      count++;\n    }\n  }\n  return ++count * -1;\n}\n\nfunction StyleBox() {\n}\n\n// Apply styles to a div. If there is no div passed then it defaults to the\n// div on 'this'.\nStyleBox.prototype.applyStyles = function(styles, div) {\n  div = div || this.div;\n  for (var prop in styles) {\n    if (styles.hasOwnProperty(prop)) {\n      div.style[prop] = styles[prop];\n    }\n  }\n};\n\nStyleBox.prototype.formatStyle = function(val, unit) {\n  return val === 0 ? 0 : val + unit;\n};\n\n// Constructs the computed display state of the cue (a div). Places the div\n// into the overlay which should be a block level element (usually a div).\nfunction CueStyleBox(window, cue, styleOptions) {\n  StyleBox.call(this);\n  this.cue = cue;\n\n  // Parse our cue's text into a DOM tree rooted at 'cueDiv'. This div will\n  // have inline positioning and will function as the cue background box.\n  this.cueDiv = parseContent(window, cue.text);\n  var styles = {\n    color: \"rgba(255, 255, 255, 1)\",\n    backgroundColor:  \"rgba(0, 0, 0, 0.8)\",\n    position: \"relative\",\n    left: 0,\n    right: 0,\n    top: 0,\n    bottom: 0,\n    display: \"inline\",\n    writingMode: cue.vertical === \"\" ? \"horizontal-tb\"\n                                     : cue.vertical === \"lr\" ? \"vertical-lr\"\n                                                             : \"vertical-rl\",\n    unicodeBidi: \"plaintext\"\n  };\n\n  this.applyStyles(styles, this.cueDiv);\n\n  // Create an absolutely positioned div that will be used to position the cue\n  // div. Note, all WebVTT cue-setting alignments are equivalent to the CSS\n  // mirrors of them except middle instead of center on Safari.\n  this.div = window.document.createElement(\"div\");\n  styles = {\n    direction: determineBidi(this.cueDiv),\n    writingMode: cue.vertical === \"\" ? \"horizontal-tb\"\n                                     : cue.vertical === \"lr\" ? \"vertical-lr\"\n                                                             : \"vertical-rl\",\n    unicodeBidi: \"plaintext\",\n    textAlign: cue.align === \"middle\" ? \"center\" : cue.align,\n    font: styleOptions.font,\n    whiteSpace: \"pre-line\",\n    position: \"absolute\"\n  };\n\n  this.applyStyles(styles);\n  this.div.appendChild(this.cueDiv);\n\n  // Calculate the distance from the reference edge of the viewport to the text\n  // position of the cue box. The reference edge will be resolved later when\n  // the box orientation styles are applied.\n  var textPos = 0;\n  switch (cue.positionAlign) {\n  case \"start\":\n    textPos = cue.position;\n    break;\n  case \"center\":\n    textPos = cue.position - (cue.size / 2);\n    break;\n  case \"end\":\n    textPos = cue.position - cue.size;\n    break;\n  }\n\n  // Horizontal box orientation; textPos is the distance from the left edge of the\n  // area to the left edge of the box and cue.size is the distance extending to\n  // the right from there.\n  if (cue.vertical === \"\") {\n    this.applyStyles({\n      left:  this.formatStyle(textPos, \"%\"),\n      width: this.formatStyle(cue.size, \"%\")\n    });\n  // Vertical box orientation; textPos is the distance from the top edge of the\n  // area to the top edge of the box and cue.size is the height extending\n  // downwards from there.\n  } else {\n    this.applyStyles({\n      top: this.formatStyle(textPos, \"%\"),\n      height: this.formatStyle(cue.size, \"%\")\n    });\n  }\n\n  this.move = function(box) {\n    this.applyStyles({\n      top: this.formatStyle(box.top, \"px\"),\n      bottom: this.formatStyle(box.bottom, \"px\"),\n      left: this.formatStyle(box.left, \"px\"),\n      right: this.formatStyle(box.right, \"px\"),\n      height: this.formatStyle(box.height, \"px\"),\n      width: this.formatStyle(box.width, \"px\")\n    });\n  };\n}\nCueStyleBox.prototype = _objCreate(StyleBox.prototype);\nCueStyleBox.prototype.constructor = CueStyleBox;\n\n// Represents the co-ordinates of an Element in a way that we can easily\n// compute things with such as if it overlaps or intersects with another Element.\n// Can initialize it with either a StyleBox or another BoxPosition.\nfunction BoxPosition(obj) {\n  // Either a BoxPosition was passed in and we need to copy it, or a StyleBox\n  // was passed in and we need to copy the results of 'getBoundingClientRect'\n  // as the object returned is readonly. All co-ordinate values are in reference\n  // to the viewport origin (top left).\n  var lh, height, width, top;\n  if (obj.div) {\n    height = obj.div.offsetHeight;\n    width = obj.div.offsetWidth;\n    top = obj.div.offsetTop;\n\n    var rects = (rects = obj.div.childNodes) && (rects = rects[0]) &&\n                rects.getClientRects && rects.getClientRects();\n    obj = obj.div.getBoundingClientRect();\n    // In certain cases the outter div will be slightly larger then the sum of\n    // the inner div's lines. This could be due to bold text, etc, on some platforms.\n    // In this case we should get the average line height and use that. This will\n    // result in the desired behaviour.\n    lh = rects ? Math.max((rects[0] && rects[0].height) || 0, obj.height / rects.length)\n               : 0;\n\n  }\n  this.left = obj.left;\n  this.right = obj.right;\n  this.top = obj.top || top;\n  this.height = obj.height || height;\n  this.bottom = obj.bottom || (top + (obj.height || height));\n  this.width = obj.width || width;\n  this.lineHeight = lh !== undefined ? lh : obj.lineHeight;\n}\n\n// Move the box along a particular axis. Optionally pass in an amount to move\n// the box. If no amount is passed then the default is the line height of the\n// box.\nBoxPosition.prototype.move = function(axis, toMove) {\n  toMove = toMove !== undefined ? toMove : this.lineHeight;\n  switch (axis) {\n  case \"+x\":\n    this.left += toMove;\n    this.right += toMove;\n    break;\n  case \"-x\":\n    this.left -= toMove;\n    this.right -= toMove;\n    break;\n  case \"+y\":\n    this.top += toMove;\n    this.bottom += toMove;\n    break;\n  case \"-y\":\n    this.top -= toMove;\n    this.bottom -= toMove;\n    break;\n  }\n};\n\n// Check if this box overlaps another box, b2.\nBoxPosition.prototype.overlaps = function(b2) {\n  return this.left < b2.right &&\n         this.right > b2.left &&\n         this.top < b2.bottom &&\n         this.bottom > b2.top;\n};\n\n// Check if this box overlaps any other boxes in boxes.\nBoxPosition.prototype.overlapsAny = function(boxes) {\n  for (var i = 0; i < boxes.length; i++) {\n    if (this.overlaps(boxes[i])) {\n      return true;\n    }\n  }\n  return false;\n};\n\n// Check if this box is within another box.\nBoxPosition.prototype.within = function(container) {\n  return this.top >= container.top &&\n         this.bottom <= container.bottom &&\n         this.left >= container.left &&\n         this.right <= container.right;\n};\n\n// Check if this box is entirely within the container or it is overlapping\n// on the edge opposite of the axis direction passed. For example, if \"+x\" is\n// passed and the box is overlapping on the left edge of the container, then\n// return true.\nBoxPosition.prototype.overlapsOppositeAxis = function(container, axis) {\n  switch (axis) {\n  case \"+x\":\n    return this.left < container.left;\n  case \"-x\":\n    return this.right > container.right;\n  case \"+y\":\n    return this.top < container.top;\n  case \"-y\":\n    return this.bottom > container.bottom;\n  }\n};\n\n// Find the percentage of the area that this box is overlapping with another\n// box.\nBoxPosition.prototype.intersectPercentage = function(b2) {\n  var x = Math.max(0, Math.min(this.right, b2.right) - Math.max(this.left, b2.left)),\n      y = Math.max(0, Math.min(this.bottom, b2.bottom) - Math.max(this.top, b2.top)),\n      intersectArea = x * y;\n  return intersectArea / (this.height * this.width);\n};\n\n// Convert the positions from this box to CSS compatible positions using\n// the reference container's positions. This has to be done because this\n// box's positions are in reference to the viewport origin, whereas, CSS\n// values are in referecne to their respective edges.\nBoxPosition.prototype.toCSSCompatValues = function(reference) {\n  return {\n    top: this.top - reference.top,\n    bottom: reference.bottom - this.bottom,\n    left: this.left - reference.left,\n    right: reference.right - this.right,\n    height: this.height,\n    width: this.width\n  };\n};\n\n// Get an object that represents the box's position without anything extra.\n// Can pass a StyleBox, HTMLElement, or another BoxPositon.\nBoxPosition.getSimpleBoxPosition = function(obj) {\n  var height = obj.div ? obj.div.offsetHeight : obj.tagName ? obj.offsetHeight : 0;\n  var width = obj.div ? obj.div.offsetWidth : obj.tagName ? obj.offsetWidth : 0;\n  var top = obj.div ? obj.div.offsetTop : obj.tagName ? obj.offsetTop : 0;\n\n  obj = obj.div ? obj.div.getBoundingClientRect() :\n                obj.tagName ? obj.getBoundingClientRect() : obj;\n  var ret = {\n    left: obj.left,\n    right: obj.right,\n    top: obj.top || top,\n    height: obj.height || height,\n    bottom: obj.bottom || (top + (obj.height || height)),\n    width: obj.width || width\n  };\n  return ret;\n};\n\n// Move a StyleBox to its specified, or next best, position. The containerBox\n// is the box that contains the StyleBox, such as a div. boxPositions are\n// a list of other boxes that the styleBox can't overlap with.\nfunction moveBoxToLinePosition(window, styleBox, containerBox, boxPositions) {\n\n  // Find the best position for a cue box, b, on the video. The axis parameter\n  // is a list of axis, the order of which, it will move the box along. For example:\n  // Passing [\"+x\", \"-x\"] will move the box first along the x axis in the positive\n  // direction. If it doesn't find a good position for it there it will then move\n  // it along the x axis in the negative direction.\n  function findBestPosition(b, axis) {\n    var bestPosition,\n        specifiedPosition = new BoxPosition(b),\n        percentage = 1; // Highest possible so the first thing we get is better.\n\n    for (var i = 0; i < axis.length; i++) {\n      while (b.overlapsOppositeAxis(containerBox, axis[i]) ||\n             (b.within(containerBox) && b.overlapsAny(boxPositions))) {\n        b.move(axis[i]);\n      }\n      // We found a spot where we aren't overlapping anything. This is our\n      // best position.\n      if (b.within(containerBox)) {\n        return b;\n      }\n      var p = b.intersectPercentage(containerBox);\n      // If we're outside the container box less then we were on our last try\n      // then remember this position as the best position.\n      if (percentage > p) {\n        bestPosition = new BoxPosition(b);\n        percentage = p;\n      }\n      // Reset the box position to the specified position.\n      b = new BoxPosition(specifiedPosition);\n    }\n    return bestPosition || specifiedPosition;\n  }\n\n  var boxPosition = new BoxPosition(styleBox),\n      cue = styleBox.cue,\n      linePos = computeLinePos(cue),\n      axis = [];\n\n  // If we have a line number to align the cue to.\n  if (cue.snapToLines) {\n    var size;\n    switch (cue.vertical) {\n    case \"\":\n      axis = [ \"+y\", \"-y\" ];\n      size = \"height\";\n      break;\n    case \"rl\":\n      axis = [ \"+x\", \"-x\" ];\n      size = \"width\";\n      break;\n    case \"lr\":\n      axis = [ \"-x\", \"+x\" ];\n      size = \"width\";\n      break;\n    }\n\n    var step = boxPosition.lineHeight,\n        position = step * Math.round(linePos),\n        maxPosition = containerBox[size] + step,\n        initialAxis = axis[0];\n\n    // If the specified intial position is greater then the max position then\n    // clamp the box to the amount of steps it would take for the box to\n    // reach the max position.\n    if (Math.abs(position) > maxPosition) {\n      position = position < 0 ? -1 : 1;\n      position *= Math.ceil(maxPosition / step) * step;\n    }\n\n    // If computed line position returns negative then line numbers are\n    // relative to the bottom of the video instead of the top. Therefore, we\n    // need to increase our initial position by the length or width of the\n    // video, depending on the writing direction, and reverse our axis directions.\n    if (linePos < 0) {\n      position += cue.vertical === \"\" ? containerBox.height : containerBox.width;\n      axis = axis.reverse();\n    }\n\n    // Move the box to the specified position. This may not be its best\n    // position.\n    boxPosition.move(initialAxis, position);\n\n  } else {\n    // If we have a percentage line value for the cue.\n    var calculatedPercentage = (boxPosition.lineHeight / containerBox.height) * 100;\n\n    switch (cue.lineAlign) {\n    case \"center\":\n      linePos -= (calculatedPercentage / 2);\n      break;\n    case \"end\":\n      linePos -= calculatedPercentage;\n      break;\n    }\n\n    // Apply initial line position to the cue box.\n    switch (cue.vertical) {\n    case \"\":\n      styleBox.applyStyles({\n        top: styleBox.formatStyle(linePos, \"%\")\n      });\n      break;\n    case \"rl\":\n      styleBox.applyStyles({\n        left: styleBox.formatStyle(linePos, \"%\")\n      });\n      break;\n    case \"lr\":\n      styleBox.applyStyles({\n        right: styleBox.formatStyle(linePos, \"%\")\n      });\n      break;\n    }\n\n    axis = [ \"+y\", \"-x\", \"+x\", \"-y\" ];\n\n    // Get the box position again after we've applied the specified positioning\n    // to it.\n    boxPosition = new BoxPosition(styleBox);\n  }\n\n  var bestPosition = findBestPosition(boxPosition, axis);\n  styleBox.move(bestPosition.toCSSCompatValues(containerBox));\n}\n\nfunction WebVTT() {\n  // Nothing\n}\n\n// Helper to allow strings to be decoded instead of the default binary utf8 data.\nWebVTT.StringDecoder = function() {\n  return {\n    decode: function(data) {\n      if (!data) {\n        return \"\";\n      }\n      if (typeof data !== \"string\") {\n        throw new Error(\"Error - expected string data.\");\n      }\n      return decodeURIComponent(encodeURIComponent(data));\n    }\n  };\n};\n\nWebVTT.convertCueToDOMTree = function(window, cuetext) {\n  if (!window || !cuetext) {\n    return null;\n  }\n  return parseContent(window, cuetext);\n};\n\nvar FONT_SIZE_PERCENT = 0.05;\nvar FONT_STYLE = \"sans-serif\";\nvar CUE_BACKGROUND_PADDING = \"1.5%\";\n\n// Runs the processing model over the cues and regions passed to it.\n// @param overlay A block level element (usually a div) that the computed cues\n//                and regions will be placed into.\nWebVTT.processCues = function(window, cues, overlay) {\n  if (!window || !cues || !overlay) {\n    return null;\n  }\n\n  // Remove all previous children.\n  while (overlay.firstChild) {\n    overlay.removeChild(overlay.firstChild);\n  }\n\n  var paddedOverlay = window.document.createElement(\"div\");\n  paddedOverlay.style.position = \"absolute\";\n  paddedOverlay.style.left = \"0\";\n  paddedOverlay.style.right = \"0\";\n  paddedOverlay.style.top = \"0\";\n  paddedOverlay.style.bottom = \"0\";\n  paddedOverlay.style.margin = CUE_BACKGROUND_PADDING;\n  overlay.appendChild(paddedOverlay);\n\n  // Determine if we need to compute the display states of the cues. This could\n  // be the case if a cue's state has been changed since the last computation or\n  // if it has not been computed yet.\n  function shouldCompute(cues) {\n    for (var i = 0; i < cues.length; i++) {\n      if (cues[i].hasBeenReset || !cues[i].displayState) {\n        return true;\n      }\n    }\n    return false;\n  }\n\n  // We don't need to recompute the cues' display states. Just reuse them.\n  if (!shouldCompute(cues)) {\n    for (var i = 0; i < cues.length; i++) {\n      paddedOverlay.appendChild(cues[i].displayState);\n    }\n    return;\n  }\n\n  var boxPositions = [],\n      containerBox = BoxPosition.getSimpleBoxPosition(paddedOverlay),\n      fontSize = Math.round(containerBox.height * FONT_SIZE_PERCENT * 100) / 100;\n  var styleOptions = {\n    font: fontSize + \"px \" + FONT_STYLE\n  };\n\n  (function() {\n    var styleBox, cue;\n\n    for (var i = 0; i < cues.length; i++) {\n      cue = cues[i];\n\n      // Compute the intial position and styles of the cue div.\n      styleBox = new CueStyleBox(window, cue, styleOptions);\n      paddedOverlay.appendChild(styleBox.div);\n\n      // Move the cue div to it's correct line position.\n      moveBoxToLinePosition(window, styleBox, containerBox, boxPositions);\n\n      // Remember the computed div so that we don't have to recompute it later\n      // if we don't have too.\n      cue.displayState = styleBox.div;\n\n      boxPositions.push(BoxPosition.getSimpleBoxPosition(styleBox));\n    }\n  })();\n};\n\nWebVTT.Parser = function(window, vttjs, decoder) {\n  if (!decoder) {\n    decoder = vttjs;\n    vttjs = {};\n  }\n  if (!vttjs) {\n    vttjs = {};\n  }\n\n  this.window = window;\n  this.vttjs = vttjs;\n  this.state = \"INITIAL\";\n  this.buffer = \"\";\n  this.decoder = decoder || new TextDecoder(\"utf8\");\n  this.regionList = [];\n};\n\nWebVTT.Parser.prototype = {\n  // If the error is a ParsingError then report it to the consumer if\n  // possible. If it's not a ParsingError then throw it like normal.\n  reportOrThrowError: function(e) {\n    if (e instanceof ParsingError) {\n      this.onparsingerror && this.onparsingerror(e);\n    } else {\n      throw e;\n    }\n  },\n  parse: function (data) {\n    var self = this;\n\n    // If there is no data then we won't decode it, but will just try to parse\n    // whatever is in buffer already. This may occur in circumstances, for\n    // example when flush() is called.\n    if (data) {\n      // Try to decode the data that we received.\n      self.buffer += self.decoder.decode(data, {stream: true});\n    }\n\n    function collectNextLine() {\n      var buffer = self.buffer;\n      var pos = 0;\n      while (pos < buffer.length && buffer[pos] !== '\\r' && buffer[pos] !== '\\n') {\n        ++pos;\n      }\n      var line = buffer.substr(0, pos);\n      // Advance the buffer early in case we fail below.\n      if (buffer[pos] === '\\r') {\n        ++pos;\n      }\n      if (buffer[pos] === '\\n') {\n        ++pos;\n      }\n      self.buffer = buffer.substr(pos);\n      return line;\n    }\n\n    // 3.4 WebVTT region and WebVTT region settings syntax\n    function parseRegion(input) {\n      var settings = new Settings();\n\n      parseOptions(input, function (k, v) {\n        switch (k) {\n        case \"id\":\n          settings.set(k, v);\n          break;\n        case \"width\":\n          settings.percent(k, v);\n          break;\n        case \"lines\":\n          settings.integer(k, v);\n          break;\n        case \"regionanchor\":\n        case \"viewportanchor\":\n          var xy = v.split(',');\n          if (xy.length !== 2) {\n            break;\n          }\n          // We have to make sure both x and y parse, so use a temporary\n          // settings object here.\n          var anchor = new Settings();\n          anchor.percent(\"x\", xy[0]);\n          anchor.percent(\"y\", xy[1]);\n          if (!anchor.has(\"x\") || !anchor.has(\"y\")) {\n            break;\n          }\n          settings.set(k + \"X\", anchor.get(\"x\"));\n          settings.set(k + \"Y\", anchor.get(\"y\"));\n          break;\n        case \"scroll\":\n          settings.alt(k, v, [\"up\"]);\n          break;\n        }\n      }, /=/, /\\s/);\n\n      // Create the region, using default values for any values that were not\n      // specified.\n      if (settings.has(\"id\")) {\n        var region = new (self.vttjs.VTTRegion || self.window.VTTRegion)();\n        region.width = settings.get(\"width\", 100);\n        region.lines = settings.get(\"lines\", 3);\n        region.regionAnchorX = settings.get(\"regionanchorX\", 0);\n        region.regionAnchorY = settings.get(\"regionanchorY\", 100);\n        region.viewportAnchorX = settings.get(\"viewportanchorX\", 0);\n        region.viewportAnchorY = settings.get(\"viewportanchorY\", 100);\n        region.scroll = settings.get(\"scroll\", \"\");\n        // Register the region.\n        self.onregion && self.onregion(region);\n        // Remember the VTTRegion for later in case we parse any VTTCues that\n        // reference it.\n        self.regionList.push({\n          id: settings.get(\"id\"),\n          region: region\n        });\n      }\n    }\n\n    // draft-pantos-http-live-streaming-20\n    // https://tools.ietf.org/html/draft-pantos-http-live-streaming-20#section-3.5\n    // 3.5 WebVTT\n    function parseTimestampMap(input) {\n      var settings = new Settings();\n\n      parseOptions(input, function(k, v) {\n        switch(k) {\n        case \"MPEGT\":\n          settings.integer(k + 'S', v);\n          break;\n        case \"LOCA\":\n          settings.set(k + 'L', parseTimeStamp(v));\n          break;\n        }\n      }, /[^\\d]:/, /,/);\n\n      self.ontimestampmap && self.ontimestampmap({\n        \"MPEGTS\": settings.get(\"MPEGTS\"),\n        \"LOCAL\": settings.get(\"LOCAL\")\n      });\n    }\n\n    // 3.2 WebVTT metadata header syntax\n    function parseHeader(input) {\n      if (input.match(/X-TIMESTAMP-MAP/)) {\n        // This line contains HLS X-TIMESTAMP-MAP metadata\n        parseOptions(input, function(k, v) {\n          switch(k) {\n          case \"X-TIMESTAMP-MAP\":\n            parseTimestampMap(v);\n            break;\n          }\n        }, /=/);\n      } else {\n        parseOptions(input, function (k, v) {\n          switch (k) {\n          case \"Region\":\n            // 3.3 WebVTT region metadata header syntax\n            parseRegion(v);\n            break;\n          }\n        }, /:/);\n      }\n\n    }\n\n    // 5.1 WebVTT file parsing.\n    try {\n      var line;\n      if (self.state === \"INITIAL\") {\n        // We can't start parsing until we have the first line.\n        if (!/\\r\\n|\\n/.test(self.buffer)) {\n          return this;\n        }\n\n        line = collectNextLine();\n\n        var m = line.match(/^WEBVTT([ \\t].*)?$/);\n        if (!m || !m[0]) {\n          throw new ParsingError(ParsingError.Errors.BadSignature);\n        }\n\n        self.state = \"HEADER\";\n      }\n\n      var alreadyCollectedLine = false;\n      while (self.buffer) {\n        // We can't parse a line until we have the full line.\n        if (!/\\r\\n|\\n/.test(self.buffer)) {\n          return this;\n        }\n\n        if (!alreadyCollectedLine) {\n          line = collectNextLine();\n        } else {\n          alreadyCollectedLine = false;\n        }\n\n        switch (self.state) {\n        case \"HEADER\":\n          // 13-18 - Allow a header (metadata) under the WEBVTT line.\n          if (/:/.test(line)) {\n            parseHeader(line);\n          } else if (!line) {\n            // An empty line terminates the header and starts the body (cues).\n            self.state = \"ID\";\n          }\n          continue;\n        case \"NOTE\":\n          // Ignore NOTE blocks.\n          if (!line) {\n            self.state = \"ID\";\n          }\n          continue;\n        case \"ID\":\n          // Check for the start of NOTE blocks.\n          if (/^NOTE($|[ \\t])/.test(line)) {\n            self.state = \"NOTE\";\n            break;\n          }\n          // 19-29 - Allow any number of line terminators, then initialize new cue values.\n          if (!line) {\n            continue;\n          }\n          self.cue = new (self.vttjs.VTTCue || self.window.VTTCue)(0, 0, \"\");\n          // Safari still uses the old middle value and won't accept center\n          try {\n            self.cue.align = \"center\";\n          } catch (e) {\n            self.cue.align = \"middle\";\n          }\n          self.state = \"CUE\";\n          // 30-39 - Check if self line contains an optional identifier or timing data.\n          if (line.indexOf(\"-->\") === -1) {\n            self.cue.id = line;\n            continue;\n          }\n          // Process line as start of a cue.\n          /*falls through*/\n        case \"CUE\":\n          // 40 - Collect cue timings and settings.\n          try {\n            parseCue(line, self.cue, self.regionList);\n          } catch (e) {\n            self.reportOrThrowError(e);\n            // In case of an error ignore rest of the cue.\n            self.cue = null;\n            self.state = \"BADCUE\";\n            continue;\n          }\n          self.state = \"CUETEXT\";\n          continue;\n        case \"CUETEXT\":\n          var hasSubstring = line.indexOf(\"-->\") !== -1;\n          // 34 - If we have an empty line then report the cue.\n          // 35 - If we have the special substring '-->' then report the cue,\n          // but do not collect the line as we need to process the current\n          // one as a new cue.\n          if (!line || hasSubstring && (alreadyCollectedLine = true)) {\n            // We are done parsing self cue.\n            self.oncue && self.oncue(self.cue);\n            self.cue = null;\n            self.state = \"ID\";\n            continue;\n          }\n          if (self.cue.text) {\n            self.cue.text += \"\\n\";\n          }\n          self.cue.text += line.replace(/\\u2028/g, '\\n').replace(/u2029/g, '\\n');\n          continue;\n        case \"BADCUE\": // BADCUE\n          // 54-62 - Collect and discard the remaining cue.\n          if (!line) {\n            self.state = \"ID\";\n          }\n          continue;\n        }\n      }\n    } catch (e) {\n      self.reportOrThrowError(e);\n\n      // If we are currently parsing a cue, report what we have.\n      if (self.state === \"CUETEXT\" && self.cue && self.oncue) {\n        self.oncue(self.cue);\n      }\n      self.cue = null;\n      // Enter BADWEBVTT state if header was not parsed correctly otherwise\n      // another exception occurred so enter BADCUE state.\n      self.state = self.state === \"INITIAL\" ? \"BADWEBVTT\" : \"BADCUE\";\n    }\n    return this;\n  },\n  flush: function () {\n    var self = this;\n    try {\n      // Finish decoding the stream.\n      self.buffer += self.decoder.decode();\n      // Synthesize the end of the current cue or region.\n      if (self.cue || self.state === \"HEADER\") {\n        self.buffer += \"\\n\\n\";\n        self.parse();\n      }\n      // If we've flushed, parsed, and we're still on the INITIAL state then\n      // that means we don't have enough of the stream to parse the first\n      // line.\n      if (self.state === \"INITIAL\") {\n        throw new ParsingError(ParsingError.Errors.BadSignature);\n      }\n    } catch(e) {\n      self.reportOrThrowError(e);\n    }\n    self.onflush && self.onflush();\n    return this;\n  }\n};\n\nmodule.exports = WebVTT;\n","module.exports = function (exec) {\n  try {\n    return !!exec();\n  } catch (error) {\n    return true;\n  }\n};\n","var path = require('../internals/path');\nvar global = require('../internals/global');\n\nvar aFunction = function (variable) {\n  return typeof variable == 'function' ? variable : undefined;\n};\n\nmodule.exports = function (namespace, method) {\n  return arguments.length < 2 ? aFunction(path[namespace]) || aFunction(global[namespace])\n    : path[namespace] && path[namespace][method] || global[namespace] && global[namespace][method];\n};\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _ErrorsBase2=require('../../../core/errors/ErrorsBase');var _ErrorsBase3=_interopRequireDefault(_ErrorsBase2);function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}function _classCallCheck(instance,Constructor){if(!(instance instanceof Constructor)){throw new TypeError(\"Cannot call a class as a function\");}}function _possibleConstructorReturn(self,call){if(!self){throw new ReferenceError(\"this hasn't been initialised - super() hasn't been called\");}return call&&(typeof call===\"object\"||typeof call===\"function\")?call:self;}function _inherits(subClass,superClass){if(typeof superClass!==\"function\"&&superClass!==null){throw new TypeError(\"Super expression must either be null or a function, not \"+typeof superClass);}subClass.prototype=Object.create(superClass&&superClass.prototype,{constructor:{value:subClass,enumerable:false,writable:true,configurable:true}});if(superClass)Object.setPrototypeOf?Object.setPrototypeOf(subClass,superClass):subClass.__proto__=superClass;}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n *//**\n * @class\n */var ProtectionErrors=function(_ErrorsBase){_inherits(ProtectionErrors,_ErrorsBase);function ProtectionErrors(){_classCallCheck(this,ProtectionErrors);/**\n         *  Generid key Error code\n         */var _this=_possibleConstructorReturn(this,(ProtectionErrors.__proto__||Object.getPrototypeOf(ProtectionErrors)).call(this));_this.MEDIA_KEYERR_CODE=100;/**\n         *  Error code returned by keyerror api for ProtectionModel_01b\n         */_this.MEDIA_KEYERR_UNKNOWN_CODE=101;/**\n         *  Error code returned by keyerror api for ProtectionModel_01b\n         */_this.MEDIA_KEYERR_CLIENT_CODE=102;/**\n         *  Error code returned by keyerror api for ProtectionModel_01b\n         */_this.MEDIA_KEYERR_SERVICE_CODE=103;/**\n         *  Error code returned by keyerror api for ProtectionModel_01b\n         */_this.MEDIA_KEYERR_OUTPUT_CODE=104;/**\n         *  Error code returned by keyerror api for ProtectionModel_01b\n         */_this.MEDIA_KEYERR_HARDWARECHANGE_CODE=105;/**\n         *  Error code returned by keyerror api for ProtectionModel_01b\n         */_this.MEDIA_KEYERR_DOMAIN_CODE=106;/**\n         *  Error code returned when an error occured in keymessage event for ProtectionModel_01b\n         */_this.MEDIA_KEY_MESSAGE_ERROR_CODE=107;/**\n         *  Error code returned when challenge is invalid in keymessage event (event triggered by CDM)\n         */_this.MEDIA_KEY_MESSAGE_NO_CHALLENGE_ERROR_CODE=108;/**\n         *  Error code returned when License server certificate has not been successfully updated\n         */_this.SERVER_CERTIFICATE_UPDATED_ERROR_CODE=109;/**\n         *  Error code returned when license validity has expired\n         */_this.KEY_STATUS_CHANGED_EXPIRED_ERROR_CODE=110;/**\n         *  Error code returned when no licenser url is defined\n         */_this.MEDIA_KEY_MESSAGE_NO_LICENSE_SERVER_URL_ERROR_CODE=111;/**\n         *  Error code returned when key system access is denied\n         */_this.KEY_SYSTEM_ACCESS_DENIED_ERROR_CODE=112;/**\n         *  Error code returned when key session has not been successfully created\n         */_this.KEY_SESSION_CREATED_ERROR_CODE=113;/**\n         *  Error code returned when license request failed after a keymessage event has been triggered\n         */_this.MEDIA_KEY_MESSAGE_LICENSER_ERROR_CODE=114;_this.MEDIA_KEYERR_UNKNOWN_MESSAGE='An unspecified error occurred. This value is used for errors that don\\'t match any of the other codes.';_this.MEDIA_KEYERR_CLIENT_MESSAGE='The Key System could not be installed or updated.';_this.MEDIA_KEYERR_SERVICE_MESSAGE='The message passed into update indicated an error from the license service.';_this.MEDIA_KEYERR_OUTPUT_MESSAGE='There is no available output device with the required characteristics for the content protection system.';_this.MEDIA_KEYERR_HARDWARECHANGE_MESSAGE='A hardware configuration change caused a content protection error.';_this.MEDIA_KEYERR_DOMAIN_MESSAGE='An error occurred in a multi-device domain licensing configuration. The most common error is a failure to join the domain.';_this.MEDIA_KEY_MESSAGE_ERROR_MESSAGE='Multiple key sessions were creates with a user-agent that does not support sessionIDs!! Unpredictable behavior ahead!';_this.MEDIA_KEY_MESSAGE_NO_CHALLENGE_ERROR_MESSAGE='DRM: Empty key message from CDM';_this.SERVER_CERTIFICATE_UPDATED_ERROR_MESSAGE='Error updating server certificate -- ';_this.KEY_STATUS_CHANGED_EXPIRED_ERROR_MESSAGE='DRM: KeyStatusChange error! -- License has expired';_this.MEDIA_KEY_MESSAGE_NO_LICENSE_SERVER_URL_ERROR_MESSAGE='DRM: No license server URL specified!';_this.KEY_SYSTEM_ACCESS_DENIED_ERROR_MESSAGE='DRM: KeySystem Access Denied! -- ';_this.KEY_SESSION_CREATED_ERROR_MESSAGE='DRM: unable to create session! --';_this.MEDIA_KEY_MESSAGE_LICENSER_ERROR_MESSAGE='DRM: licenser error! --';return _this;}return ProtectionErrors;}(_ErrorsBase3.default);var protectionErrors=new ProtectionErrors();exports.default=protectionErrors;\n//# sourceMappingURL=ProtectionErrors.js.map\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _MetricsConstants=require('../../constants/MetricsConstants');var _MetricsConstants2=_interopRequireDefault(_MetricsConstants);function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}function _classCallCheck(instance,Constructor){if(!(instance instanceof Constructor)){throw new TypeError(\"Cannot call a class as a function\");}}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n *//**\n * @class\n * @ignore\n */var BufferState=/**\n     * @description This Object holds reference to the current buffer state of the video element.\n     */function BufferState(){_classCallCheck(this,BufferState);/**\n         * The Buffer Level Target determined by the BufferLevelRule.\n         * @public\n         */this.target=null;/**\n         * Current buffer state. Will be MetricsConstants.BUFFER_EMPTY or MetricsConstants.BUFFER_LOADED.\n         * @public\n         */this.state=_MetricsConstants2.default.BUFFER_EMPTY;};exports.default=BufferState;\n//# sourceMappingURL=BufferState.js.map\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _Constants=require('./constants/Constants');var _Constants2=_interopRequireDefault(_Constants);var _URLLoader=require('./net/URLLoader');var _URLLoader2=_interopRequireDefault(_URLLoader);var _HeadRequest=require('./vo/HeadRequest');var _HeadRequest2=_interopRequireDefault(_HeadRequest);var _DashJSError=require('./vo/DashJSError');var _DashJSError2=_interopRequireDefault(_DashJSError);var _FactoryMaker=require('../core/FactoryMaker');var _FactoryMaker2=_interopRequireDefault(_FactoryMaker);function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}function FragmentLoader(config){config=config||{};var context=this.context;var eventBus=config.eventBus;var events=config.events;var urlUtils=config.urlUtils;var errors=config.errors;var instance=void 0,urlLoader=void 0;function setup(){urlLoader=(0,_URLLoader2.default)(context).create({errHandler:config.errHandler,errors:errors,dashMetrics:config.dashMetrics,mediaPlayerModel:config.mediaPlayerModel,requestModifier:config.requestModifier,useFetch:config.settings.get().streaming.lowLatencyEnabled,urlUtils:urlUtils,constants:_Constants2.default,boxParser:config.boxParser,dashConstants:config.dashConstants});}function checkForExistence(request){var report=function report(success){eventBus.trigger(events.CHECK_FOR_EXISTENCE_COMPLETED,{request:request,exists:success});};if(request){var headRequest=new _HeadRequest2.default(request.url);urlLoader.load({request:headRequest,success:function success(){report(true);},error:function error(){report(false);}});}else{report(false);}}function load(request){var report=function report(data,error){eventBus.trigger(events.LOADING_COMPLETED,{request:request,response:data||null,error:error||null,sender:instance});};if(request){urlLoader.load({request:request,progress:function progress(event){eventBus.trigger(events.LOADING_PROGRESS,{request:request,stream:event.stream});if(event.data){eventBus.trigger(events.LOADING_DATA_PROGRESS,{request:request,response:event.data||null,error:null,sender:instance});}},success:function success(data){report(data);},error:function error(request,statusText,errorText){report(undefined,new _DashJSError2.default(errors.FRAGMENT_LOADER_LOADING_FAILURE_ERROR_CODE,errorText,statusText));},abort:function abort(request){if(request){eventBus.trigger(events.LOADING_ABANDONED,{request:request,mediaType:request.mediaType,sender:instance});}}});}else{report(undefined,new _DashJSError2.default(errors.FRAGMENT_LOADER_NULL_REQUEST_ERROR_CODE,errors.FRAGMENT_LOADER_NULL_REQUEST_ERROR_MESSAGE));}}function abort(){if(urlLoader){urlLoader.abort();}}function reset(){if(urlLoader){urlLoader.abort();urlLoader=null;}}instance={checkForExistence:checkForExistence,load:load,abort:abort,reset:reset};setup();return instance;}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n */FragmentLoader.__dashjs_factory_name='FragmentLoader';exports.default=_FactoryMaker2.default.getClassFactory(FragmentLoader);\n//# sourceMappingURL=FragmentLoader.js.map\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _createClass=function(){function defineProperties(target,props){for(var i=0;i<props.length;i++){var descriptor=props[i];descriptor.enumerable=descriptor.enumerable||false;descriptor.configurable=true;if(\"value\"in descriptor)descriptor.writable=true;Object.defineProperty(target,descriptor.key,descriptor);}}return function(Constructor,protoProps,staticProps){if(protoProps)defineProperties(Constructor.prototype,protoProps);if(staticProps)defineProperties(Constructor,staticProps);return Constructor;};}();function _classCallCheck(instance,Constructor){if(!(instance instanceof Constructor)){throw new TypeError(\"Cannot call a class as a function\");}}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n *//**\n  * @class\n  * @ignore\n  */var CommonEncryption=function(){function CommonEncryption(){_classCallCheck(this,CommonEncryption);}_createClass(CommonEncryption,null,[{key:'findCencContentProtection',/**\n     * Find and return the ContentProtection element in the given array\n     * that indicates support for MPEG Common Encryption\n     *\n     * @param {Array} cpArray array of content protection elements\n     * @returns {Object|null} the Common Encryption content protection element or\n     * null if one was not found\n     */value:function findCencContentProtection(cpArray){var retVal=null;for(var i=0;i<cpArray.length;++i){var cp=cpArray[i];if(cp.schemeIdUri.toLowerCase()==='urn:mpeg:dash:mp4protection:2011'&&cp.value.toLowerCase()==='cenc')retVal=cp;}return retVal;}/**\n     * Returns just the data portion of a single PSSH\n     *\n     * @param {ArrayBuffer} pssh - the PSSH\n     * @return {ArrayBuffer} data portion of the PSSH\n     */},{key:'getPSSHData',value:function getPSSHData(pssh){var offset=8;// Box size and type fields\nvar view=new DataView(pssh);// Read version\nvar version=view.getUint8(offset);offset+=20;// Version (1), flags (3), system ID (16)\nif(version>0){offset+=4+16*view.getUint32(offset);// Key ID count (4) and All key IDs (16*count)\n}offset+=4;// Data size\nreturn pssh.slice(offset);}/**\n     * Returns the PSSH associated with the given key system from the concatenated\n     * list of PSSH boxes in the given initData\n     *\n     * @param {KeySystem} keySystem the desired\n     * key system\n     * @param {ArrayBuffer} initData 'cenc' initialization data.  Concatenated list of PSSH.\n     * @returns {ArrayBuffer|null} The PSSH box data corresponding to the given key system, null if not found\n     * or null if a valid association could not be found.\n     */},{key:'getPSSHForKeySystem',value:function getPSSHForKeySystem(keySystem,initData){var psshList=CommonEncryption.parsePSSHList(initData);if(keySystem&&psshList.hasOwnProperty(keySystem.uuid.toLowerCase())){return psshList[keySystem.uuid.toLowerCase()];}return null;}/**\n     * Parse a standard common encryption PSSH which contains a simple\n     * base64-encoding of the init data\n     *\n     * @param {Object} cpData the ContentProtection element\n     * @param {BASE64} BASE64 reference\n     * @returns {ArrayBuffer|null} the init data or null if not found\n     */},{key:'parseInitDataFromContentProtection',value:function parseInitDataFromContentProtection(cpData,BASE64){if('pssh'in cpData){return BASE64.decodeArray(cpData.pssh.__text).buffer;}return null;}/**\n     * Parses list of PSSH boxes into keysystem-specific PSSH data\n     *\n     * @param {ArrayBuffer} data - the concatenated list of PSSH boxes as provided by\n     * CDM as initialization data when CommonEncryption content is detected\n     * @returns {Object|Array} an object that has a property named according to each of\n     * the detected key system UUIDs (e.g. 00000000-0000-0000-0000-0000000000)\n     * and a ArrayBuffer (the entire PSSH box) as the property value\n     */},{key:'parsePSSHList',value:function parsePSSHList(data){if(data===null||data===undefined)return[];var dv=new DataView(data.buffer||data);// data.buffer first for Uint8Array support\nvar done=false;var pssh={};// TODO: Need to check every data read for end of buffer\nvar byteCursor=0;while(!done){var size=void 0,nextBox=void 0,version=void 0,systemID=void 0,psshDataSize=void 0;var boxStart=byteCursor;if(byteCursor>=dv.buffer.byteLength)break;/* Box size */size=dv.getUint32(byteCursor);nextBox=byteCursor+size;byteCursor+=4;/* Verify PSSH */if(dv.getUint32(byteCursor)!==0x70737368){byteCursor=nextBox;continue;}byteCursor+=4;/* Version must be 0 or 1 */version=dv.getUint8(byteCursor);if(version!==0&&version!==1){byteCursor=nextBox;continue;}byteCursor++;byteCursor+=3;/* skip flags */// 16-byte UUID/SystemID\nsystemID='';var i=void 0,val=void 0;for(i=0;i<4;i++){val=dv.getUint8(byteCursor+i).toString(16);systemID+=val.length===1?'0'+val:val;}byteCursor+=4;systemID+='-';for(i=0;i<2;i++){val=dv.getUint8(byteCursor+i).toString(16);systemID+=val.length===1?'0'+val:val;}byteCursor+=2;systemID+='-';for(i=0;i<2;i++){val=dv.getUint8(byteCursor+i).toString(16);systemID+=val.length===1?'0'+val:val;}byteCursor+=2;systemID+='-';for(i=0;i<2;i++){val=dv.getUint8(byteCursor+i).toString(16);systemID+=val.length===1?'0'+val:val;}byteCursor+=2;systemID+='-';for(i=0;i<6;i++){val=dv.getUint8(byteCursor+i).toString(16);systemID+=val.length===1?'0'+val:val;}byteCursor+=6;systemID=systemID.toLowerCase();/* PSSH Data Size */psshDataSize=dv.getUint32(byteCursor);byteCursor+=4;/* PSSH Data */pssh[systemID]=dv.buffer.slice(boxStart,nextBox);byteCursor=nextBox;}return pssh;}}]);return CommonEncryption;}();exports.default=CommonEncryption;\n//# sourceMappingURL=CommonEncryption.js.map\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _Constants=require('./constants/Constants');var _Constants2=_interopRequireDefault(_Constants);var _DashConstants=require('../dash/constants/DashConstants');var _DashConstants2=_interopRequireDefault(_DashConstants);var _StreamProcessor=require('./StreamProcessor');var _StreamProcessor2=_interopRequireDefault(_StreamProcessor);var _EventController=require('./controllers/EventController');var _EventController2=_interopRequireDefault(_EventController);var _FragmentController=require('./controllers/FragmentController');var _FragmentController2=_interopRequireDefault(_FragmentController);var _ThumbnailController=require('./thumbnail/ThumbnailController');var _ThumbnailController2=_interopRequireDefault(_ThumbnailController);var _EventBus=require('../core/EventBus');var _EventBus2=_interopRequireDefault(_EventBus);var _Events=require('../core/events/Events');var _Events2=_interopRequireDefault(_Events);var _Debug=require('../core/Debug');var _Debug2=_interopRequireDefault(_Debug);var _Errors=require('../core/errors/Errors');var _Errors2=_interopRequireDefault(_Errors);var _FactoryMaker=require('../core/FactoryMaker');var _FactoryMaker2=_interopRequireDefault(_FactoryMaker);var _DashJSError=require('./vo/DashJSError');var _DashJSError2=_interopRequireDefault(_DashJSError);var _BoxParser=require('./utils/BoxParser');var _BoxParser2=_interopRequireDefault(_BoxParser);var _URLUtils=require('./utils/URLUtils');var _URLUtils2=_interopRequireDefault(_URLUtils);function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n */function Stream(config){config=config||{};var context=this.context;var eventBus=(0,_EventBus2.default)(context).getInstance();var urlUtils=(0,_URLUtils2.default)(context).getInstance();var manifestModel=config.manifestModel;var mediaPlayerModel=config.mediaPlayerModel;var manifestUpdater=config.manifestUpdater;var adapter=config.adapter;var capabilities=config.capabilities;var errHandler=config.errHandler;var timelineConverter=config.timelineConverter;var dashMetrics=config.dashMetrics;var abrController=config.abrController;var playbackController=config.playbackController;var mediaController=config.mediaController;var textController=config.textController;var videoModel=config.videoModel;var settings=config.settings;var instance=void 0,logger=void 0,streamProcessors=void 0,isStreamActivated=void 0,isMediaInitialized=void 0,streamInfo=void 0,updateError=void 0,isUpdating=void 0,protectionController=void 0,fragmentController=void 0,thumbnailController=void 0,eventController=void 0,preloaded=void 0,boxParser=void 0,debug=void 0,trackChangedEvent=void 0;var codecCompatibilityTable=[{'codec':'avc1','compatibleCodecs':['avc3']},{'codec':'avc3','compatibleCodecs':['avc1']}];function setup(){debug=(0,_Debug2.default)(context).getInstance();logger=debug.getLogger(instance);resetInitialSettings();boxParser=(0,_BoxParser2.default)(context).getInstance();fragmentController=(0,_FragmentController2.default)(context).create({mediaPlayerModel:mediaPlayerModel,dashMetrics:dashMetrics,errHandler:errHandler,settings:settings,boxParser:boxParser,dashConstants:_DashConstants2.default,urlUtils:urlUtils});registerEvents();}function registerEvents(){eventBus.on(_Events2.default.BUFFERING_COMPLETED,onBufferingCompleted,instance);eventBus.on(_Events2.default.DATA_UPDATE_COMPLETED,onDataUpdateCompleted,instance);}function unRegisterEvents(){eventBus.off(_Events2.default.DATA_UPDATE_COMPLETED,onDataUpdateCompleted,instance);eventBus.off(_Events2.default.BUFFERING_COMPLETED,onBufferingCompleted,instance);}function registerProtectionEvents(){if(protectionController){eventBus.on(_Events2.default.KEY_ERROR,onProtectionError,instance);eventBus.on(_Events2.default.SERVER_CERTIFICATE_UPDATED,onProtectionError,instance);eventBus.on(_Events2.default.LICENSE_REQUEST_COMPLETE,onProtectionError,instance);eventBus.on(_Events2.default.KEY_SYSTEM_SELECTED,onProtectionError,instance);eventBus.on(_Events2.default.KEY_SESSION_CREATED,onProtectionError,instance);eventBus.on(_Events2.default.KEY_STATUSES_CHANGED,onProtectionError,instance);}}function unRegisterProtectionEvents(){if(protectionController){eventBus.off(_Events2.default.KEY_ERROR,onProtectionError,instance);eventBus.off(_Events2.default.SERVER_CERTIFICATE_UPDATED,onProtectionError,instance);eventBus.off(_Events2.default.LICENSE_REQUEST_COMPLETE,onProtectionError,instance);eventBus.off(_Events2.default.KEY_SYSTEM_SELECTED,onProtectionError,instance);eventBus.off(_Events2.default.KEY_SESSION_CREATED,onProtectionError,instance);eventBus.off(_Events2.default.KEY_STATUSES_CHANGED,onProtectionError,instance);}}function initialize(StreamInfo,ProtectionController){streamInfo=StreamInfo;protectionController=ProtectionController;registerProtectionEvents();}/**\n     * Activates Stream by re-initializing some of its components\n     * @param {MediaSource} mediaSource\n     * @memberof Stream#\n     * @param {SourceBuffer} previousBuffers\n     */function activate(mediaSource,previousBuffers){if(!isStreamActivated){var result=void 0;eventBus.on(_Events2.default.CURRENT_TRACK_CHANGED,onCurrentTrackChanged,instance);if(!getPreloaded()){result=initializeMedia(mediaSource,previousBuffers);}else{initializeAfterPreload();result=previousBuffers;}isStreamActivated=true;return result;}return previousBuffers;}/**\n     * Partially resets some of the Stream elements\n     * @memberof Stream#\n     * @param {boolean} keepBuffers\n     */function deactivate(keepBuffers){var ln=streamProcessors?streamProcessors.length:0;var errored=false;for(var i=0;i<ln;i++){var fragmentModel=streamProcessors[i].getFragmentModel();fragmentModel.removeExecutedRequestsBeforeTime(getStartTime()+getDuration());streamProcessors[i].reset(errored,keepBuffers);}streamProcessors=[];isStreamActivated=false;isMediaInitialized=false;setPreloaded(false);eventBus.off(_Events2.default.CURRENT_TRACK_CHANGED,onCurrentTrackChanged,instance);}function isActive(){return isStreamActivated;}function setMediaSource(mediaSource){for(var i=0;i<streamProcessors.length;){if(isMediaSupported(streamProcessors[i].getMediaInfo())){streamProcessors[i].setMediaSource(mediaSource);i++;}else{streamProcessors[i].reset();streamProcessors.splice(i,1);}}for(var _i=0;_i<streamProcessors.length;_i++){//Adding of new tracks to a stream processor isn't guaranteed by the spec after the METADATA_LOADED state\n//so do this after the buffers are created above.\nstreamProcessors[_i].dischargePreBuffer();}if(streamProcessors.length===0){var msg='No streams to play.';errHandler.error(new _DashJSError2.default(_Errors2.default.MANIFEST_ERROR_ID_NOSTREAMS_CODE,msg+'nostreams',manifestModel.getValue()));logger.fatal(msg);}}function resetInitialSettings(){deactivate();streamInfo=null;updateError={};isUpdating=false;}function reset(){stopEventController();if(playbackController){playbackController.pause();}if(fragmentController){fragmentController.reset();fragmentController=null;}resetInitialSettings();unRegisterEvents();unRegisterProtectionEvents();setPreloaded(false);}function getDuration(){return streamInfo?streamInfo.duration:NaN;}function getStartTime(){return streamInfo?streamInfo.start:NaN;}function getId(){return streamInfo?streamInfo.id:null;}function getStreamInfo(){return streamInfo;}function getFragmentController(){return fragmentController;}function getThumbnailController(){return thumbnailController;}function checkConfig(){if(!videoModel||!abrController||!abrController.hasOwnProperty('getBitrateList')||!adapter||!adapter.hasOwnProperty('getAllMediaInfoForType')||!adapter.hasOwnProperty('getEventsFor')){throw new Error(_Constants2.default.MISSING_CONFIG_ERROR);}}/**\n     * @param {string} type\n     * @returns {Array}\n     * @memberof Stream#\n     */function getBitrateListFor(type){checkConfig();if(type===_Constants2.default.IMAGE){if(!thumbnailController){return[];}return thumbnailController.getBitrateList();}var mediaInfo=getMediaInfo(type);return abrController.getBitrateList(mediaInfo);}function startEventController(){if(eventController){eventController.start();}}function stopEventController(){if(eventController){eventController.stop();}}function onProtectionError(event){if(event.error){errHandler.error(event.error);logger.fatal(event.error.message);reset();}}function isMediaSupported(mediaInfo){var type=mediaInfo?mediaInfo.type:null;var codec=void 0,msg=void 0;if(type===_Constants2.default.MUXED){msg='Multiplexed representations are intentionally not supported, as they are not compliant with the DASH-AVC/264 guidelines';logger.fatal(msg);errHandler.error(new _DashJSError2.default(_Errors2.default.MANIFEST_ERROR_ID_MULTIPLEXED_CODE,msg,manifestModel.getValue()));return false;}if(type===_Constants2.default.TEXT||type===_Constants2.default.FRAGMENTED_TEXT||type===_Constants2.default.EMBEDDED_TEXT||type===_Constants2.default.IMAGE){return true;}codec=mediaInfo.codec;logger.debug(type+' codec: '+codec);if(!!mediaInfo.contentProtection&&!capabilities.supportsEncryptedMedia()){errHandler.error(new _DashJSError2.default(_Errors2.default.CAPABILITY_MEDIAKEYS_ERROR_CODE,_Errors2.default.CAPABILITY_MEDIAKEYS_ERROR_MESSAGE));}else if(!capabilities.supportsCodec(codec)){msg=type+'Codec ('+codec+') is not supported.';logger.error(msg);return false;}return true;}function onCurrentTrackChanged(e){if(!streamInfo||e.newMediaInfo.streamInfo.id!==streamInfo.id)return;var mediaInfo=e.newMediaInfo;var manifest=manifestModel.getValue();adapter.setCurrentMediaInfo(streamInfo.id,mediaInfo.type,mediaInfo);var processor=getProcessorForMediaInfo(mediaInfo);if(!processor)return;var currentTime=playbackController.getTime();logger.info('Stream -  Process track changed at current time '+currentTime);logger.debug('Stream -  Update stream controller');if(manifest.refreshManifestOnSwitchTrack){logger.debug('Stream -  Refreshing manifest for switch track');trackChangedEvent=e;manifestUpdater.refreshManifest();}else{processor.selectMediaInfo(mediaInfo);if(mediaInfo.type!==_Constants2.default.FRAGMENTED_TEXT){abrController.updateTopQualityIndex(mediaInfo);processor.switchTrackAsked();processor.getFragmentModel().abortRequests();}else{processor.getScheduleController().setSeekTarget(currentTime);processor.setIndexHandlerTime(currentTime);processor.resetIndexHandler();}}}function createStreamProcessor(mediaInfo,allMediaForType,mediaSource,optionalSettings){var streamProcessor=(0,_StreamProcessor2.default)(context).create({type:mediaInfo?mediaInfo.type:null,mimeType:mediaInfo?mediaInfo.mimeType:null,timelineConverter:timelineConverter,adapter:adapter,manifestModel:manifestModel,mediaPlayerModel:mediaPlayerModel,dashMetrics:config.dashMetrics,baseURLController:config.baseURLController,stream:instance,abrController:abrController,playbackController:playbackController,mediaController:mediaController,streamController:config.streamController,textController:textController,errHandler:errHandler,settings:settings,boxParser:boxParser});streamProcessor.initialize(mediaSource);abrController.updateTopQualityIndex(mediaInfo);if(optionalSettings){streamProcessor.setBuffer(optionalSettings.buffer);streamProcessor.setIndexHandlerTime(optionalSettings.currentTime);streamProcessors[optionalSettings.replaceIdx]=streamProcessor;}else{streamProcessors.push(streamProcessor);}if(optionalSettings&&optionalSettings.ignoreMediaInfo){return;}if(mediaInfo&&(mediaInfo.type===_Constants2.default.TEXT||mediaInfo.type===_Constants2.default.FRAGMENTED_TEXT)){var idx=void 0;for(var i=0;i<allMediaForType.length;i++){if(allMediaForType[i].index===mediaInfo.index){idx=i;}streamProcessor.addMediaInfo(allMediaForType[i]);//creates text tracks for all adaptations in one stream processor\n}streamProcessor.selectMediaInfo(allMediaForType[idx]);//sets the initial media info\n}else{streamProcessor.addMediaInfo(mediaInfo,true);}}function initializeMediaForType(type,mediaSource){var allMediaForType=adapter.getAllMediaInfoForType(streamInfo,type);var mediaInfo=null;var initialMediaInfo=void 0;if(!allMediaForType||allMediaForType.length===0){logger.info('No '+type+' data.');return;}for(var i=0,ln=allMediaForType.length;i<ln;i++){mediaInfo=allMediaForType[i];if(type===_Constants2.default.EMBEDDED_TEXT){textController.addEmbeddedTrack(mediaInfo);}else{if(!isMediaSupported(mediaInfo))continue;mediaController.addTrack(mediaInfo);}}if(type===_Constants2.default.EMBEDDED_TEXT||mediaController.getTracksFor(type,streamInfo).length===0){return;}if(type===_Constants2.default.IMAGE){thumbnailController=(0,_ThumbnailController2.default)(context).create({adapter:adapter,baseURLController:config.baseURLController,stream:instance,timelineConverter:config.timelineConverter,debug:debug,eventBus:eventBus,events:_Events2.default,dashConstants:_DashConstants2.default});return;}if(type!==_Constants2.default.FRAGMENTED_TEXT||type===_Constants2.default.FRAGMENTED_TEXT&&textController.getTextDefaultEnabled()){mediaController.checkInitialMediaSettingsForType(type,streamInfo);initialMediaInfo=mediaController.getCurrentTrackFor(type,streamInfo);}if(type===_Constants2.default.FRAGMENTED_TEXT&&!textController.getTextDefaultEnabled()){initialMediaInfo=mediaController.getTracksFor(type,streamInfo)[0];}eventBus.trigger(_Events2.default.STREAM_INITIALIZING,{streamInfo:streamInfo,mediaInfo:mediaInfo});// TODO : How to tell index handler live/duration?\n// TODO : Pass to controller and then pass to each method on handler?\ncreateStreamProcessor(initialMediaInfo,allMediaForType,mediaSource);}function initializeEventController(){//if initializeMedia is called from a switch period, eventController could have been already created.\nif(!eventController){eventController=(0,_EventController2.default)(context).create();eventController.setConfig({manifestUpdater:manifestUpdater,playbackController:playbackController});addInlineEvents();}}function addInlineEvents(){var events=adapter.getEventsFor(streamInfo);eventController.addInlineEvents(events);}function addInbandEvents(events){if(eventController){eventController.addInbandEvents(events);}}function initializeMedia(mediaSource,previousBuffers){checkConfig();var element=videoModel.getElement();initializeEventController();isUpdating=true;filterCodecs(_Constants2.default.VIDEO);filterCodecs(_Constants2.default.AUDIO);if(!element||element&&/^VIDEO$/i.test(element.nodeName)){initializeMediaForType(_Constants2.default.VIDEO,mediaSource);}initializeMediaForType(_Constants2.default.AUDIO,mediaSource);initializeMediaForType(_Constants2.default.TEXT,mediaSource);initializeMediaForType(_Constants2.default.FRAGMENTED_TEXT,mediaSource);initializeMediaForType(_Constants2.default.EMBEDDED_TEXT,mediaSource);initializeMediaForType(_Constants2.default.MUXED,mediaSource);initializeMediaForType(_Constants2.default.IMAGE,mediaSource);//TODO. Consider initialization of TextSourceBuffer here if embeddedText, but no sideloadedText.\nvar buffers=createBuffers(previousBuffers);isMediaInitialized=true;isUpdating=false;if(streamProcessors.length===0){var msg='No streams to play.';errHandler.error(new _DashJSError2.default(_Errors2.default.MANIFEST_ERROR_ID_NOSTREAMS_CODE,msg,manifestModel.getValue()));logger.fatal(msg);}else{checkIfInitializationCompleted();}return buffers;}function initializeAfterPreload(){isUpdating=true;checkConfig();filterCodecs(_Constants2.default.VIDEO);filterCodecs(_Constants2.default.AUDIO);isMediaInitialized=true;isUpdating=false;if(streamProcessors.length===0){var msg='No streams to play.';errHandler.error(new _DashJSError2.default(_Errors2.default.MANIFEST_ERROR_ID_NOSTREAMS_CODE,msg,manifestModel.getValue()));logger.debug(msg);}else{checkIfInitializationCompleted();}}function filterCodecs(type){var realAdaptation=adapter.getAdaptationForType(streamInfo?streamInfo.index:null,type,streamInfo);if(!realAdaptation||!Array.isArray(realAdaptation.Representation_asArray))return;// Filter codecs that are not supported\nrealAdaptation.Representation_asArray=realAdaptation.Representation_asArray.filter(function(_,i){// keep at least codec from lowest representation\nif(i===0)return true;var codec=adapter.getCodec(realAdaptation,i,true);if(!capabilities.supportsCodec(codec)){logger.error('[Stream] codec not supported: '+codec);return false;}return true;});}function checkIfInitializationCompleted(){var ln=streamProcessors.length;var hasError=!!updateError.audio||!!updateError.video;var error=hasError?new _DashJSError2.default(_Errors2.default.DATA_UPDATE_FAILED_ERROR_CODE,_Errors2.default.DATA_UPDATE_FAILED_ERROR_MESSAGE):null;for(var i=0;i<ln;i++){if(streamProcessors[i].isUpdating()||isUpdating){return;}}if(!isMediaInitialized){return;}if(protectionController){// Need to check if streamProcessors exists because streamProcessors\n// could be cleared in case an error is detected while initializing DRM keysystem\nfor(var _i2=0;_i2<ln&&streamProcessors[_i2];_i2++){if(streamProcessors[_i2].getType()===_Constants2.default.AUDIO||streamProcessors[_i2].getType()===_Constants2.default.VIDEO||streamProcessors[_i2].getType()===_Constants2.default.FRAGMENTED_TEXT){protectionController.initializeForMedia(streamProcessors[_i2].getMediaInfo());}}}if(error){errHandler.error(error);}else{eventBus.trigger(_Events2.default.STREAM_INITIALIZED,{streamInfo:streamInfo});}}function getMediaInfo(type){var streamProcessor=null;for(var i=0;i<streamProcessors.length;i++){streamProcessor=streamProcessors[i];if(streamProcessor.getType()===type){return streamProcessor.getMediaInfo();}}return null;}function createBuffers(previousBuffers){var buffers={};for(var i=0,ln=streamProcessors.length;i<ln;i++){var buffer=streamProcessors[i].createBuffer(previousBuffers);if(buffer){buffers[streamProcessors[i].getType()]=buffer.getBuffer();}}return buffers;}function onBufferingCompleted(e){if(e.streamInfo!==streamInfo){return;}var processors=getProcessors();var ln=processors.length;if(ln===0){logger.warn('onBufferingCompleted - can\\'t trigger STREAM_BUFFERING_COMPLETED because no streamProcessor is defined');return;}// if there is at least one buffer controller that has not completed buffering yet do nothing\nfor(var i=0;i<ln;i++){//if audio or video buffer is not buffering completed state, do not send STREAM_BUFFERING_COMPLETED\nif(!processors[i].isBufferingCompleted()&&(processors[i].getType()===_Constants2.default.AUDIO||processors[i].getType()===_Constants2.default.VIDEO)){logger.warn('onBufferingCompleted - One streamProcessor has finished but',processors[i].getType(),'one is not buffering completed');return;}}logger.debug('onBufferingCompleted - trigger STREAM_BUFFERING_COMPLETED');eventBus.trigger(_Events2.default.STREAM_BUFFERING_COMPLETED,{streamInfo:streamInfo});}function onDataUpdateCompleted(e){if(!streamInfo||e.sender.getStreamId()!==streamInfo.id)return;updateError[e.sender.getType()]=e.error;checkIfInitializationCompleted();}function getProcessorForMediaInfo(mediaInfo){if(!mediaInfo){return null;}var processors=getProcessors();return processors.filter(function(processor){return processor.getType()===mediaInfo.type;})[0];}function getProcessors(){var arr=[];var type=void 0,streamProcessor=void 0;for(var i=0;i<streamProcessors.length;i++){streamProcessor=streamProcessors[i];type=streamProcessor.getType();if(type===_Constants2.default.AUDIO||type===_Constants2.default.VIDEO||type===_Constants2.default.FRAGMENTED_TEXT||type===_Constants2.default.TEXT){arr.push(streamProcessor);}}return arr;}function updateData(updatedStreamInfo){logger.info('Manifest updated... updating data system wide.');isStreamActivated=false;isUpdating=true;streamInfo=updatedStreamInfo;if(eventController){addInlineEvents();}filterCodecs(_Constants2.default.VIDEO);filterCodecs(_Constants2.default.AUDIO);for(var i=0,ln=streamProcessors.length;i<ln;i++){var streamProcessor=streamProcessors[i];var mediaInfo=adapter.getMediaInfoForType(streamInfo,streamProcessor.getType());abrController.updateTopQualityIndex(mediaInfo);streamProcessor.addMediaInfo(mediaInfo,true);}if(trackChangedEvent){var _mediaInfo=trackChangedEvent.newMediaInfo;if(_mediaInfo.type!==_Constants2.default.FRAGMENTED_TEXT){var processor=getProcessorForMediaInfo(trackChangedEvent.oldMediaInfo);if(!processor)return;processor.switchTrackAsked();trackChangedEvent=undefined;}}isUpdating=false;checkIfInitializationCompleted();}function isMediaCodecCompatible(newStream){return compareCodecs(newStream,_Constants2.default.VIDEO)&&compareCodecs(newStream,_Constants2.default.AUDIO);}function isProtectionCompatible(stream){return compareProtectionConfig(stream,_Constants2.default.VIDEO)&&compareProtectionConfig(stream,_Constants2.default.AUDIO);}function compareProtectionConfig(stream,type){if(!stream){return false;}var newStreamInfo=stream.getStreamInfo();var currentStreamInfo=getStreamInfo();if(!newStreamInfo||!currentStreamInfo){return false;}var newAdaptation=adapter.getAdaptationForType(newStreamInfo.index,type,newStreamInfo);var currentAdaptation=adapter.getAdaptationForType(currentStreamInfo.index,type,currentStreamInfo);if(!newAdaptation||!currentAdaptation){// If there is no adaptation for neither the old or the new stream they're compatible\nreturn!newAdaptation&&!currentAdaptation;}// If any of the periods requires EME, we can't do smooth transition\nif(newAdaptation.ContentProtection||currentAdaptation.ContentProtection){return false;}return true;}function compareCodecs(newStream,type){if(!newStream||!newStream.hasOwnProperty('getStreamInfo')){return false;}var newStreamInfo=newStream.getStreamInfo();var currentStreamInfo=getStreamInfo();if(!newStreamInfo||!currentStreamInfo){return false;}var newAdaptation=adapter.getAdaptationForType(newStreamInfo.index,type,newStreamInfo);var currentAdaptation=adapter.getAdaptationForType(currentStreamInfo.index,type,currentStreamInfo);if(!newAdaptation||!currentAdaptation){// If there is no adaptation for neither the old or the new stream they're compatible\nreturn!newAdaptation&&!currentAdaptation;}var sameMimeType=newAdaptation&&currentAdaptation&&newAdaptation.mimeType===currentAdaptation.mimeType;var oldCodecs=currentAdaptation.Representation_asArray.map(function(representation){return representation.codecs;});var newCodecs=newAdaptation.Representation_asArray.map(function(representation){return representation.codecs;});var codecMatch=newCodecs.some(function(newCodec){return oldCodecs.indexOf(newCodec)>-1;});var partialCodecMatch=newCodecs.some(function(newCodec){return oldCodecs.some(function(oldCodec){return codecRootCompatibleWithCodec(oldCodec,newCodec);});});return codecMatch||partialCodecMatch&&sameMimeType;}// Check if the root of the old codec is the same as the new one, or if it's declared as compatible in the compat table\nfunction codecRootCompatibleWithCodec(codec1,codec2){var codecRoot=codec1.split('.')[0];var rootCompatible=codec2.indexOf(codecRoot)===0;var compatTableCodec=void 0;for(var i=0;i<codecCompatibilityTable.length;i++){if(codecCompatibilityTable[i].codec===codecRoot){compatTableCodec=codecCompatibilityTable[i];break;}}if(compatTableCodec){return rootCompatible||compatTableCodec.compatibleCodecs.some(function(compatibleCodec){return codec2.indexOf(compatibleCodec)===0;});}return rootCompatible;}function setPreloaded(value){preloaded=value;}function getPreloaded(){return preloaded;}function preload(mediaSource,previousBuffers){initializeEventController();initializeMediaForType(_Constants2.default.VIDEO,mediaSource);initializeMediaForType(_Constants2.default.AUDIO,mediaSource);initializeMediaForType(_Constants2.default.TEXT,mediaSource);initializeMediaForType(_Constants2.default.FRAGMENTED_TEXT,mediaSource);initializeMediaForType(_Constants2.default.EMBEDDED_TEXT,mediaSource);initializeMediaForType(_Constants2.default.MUXED,mediaSource);initializeMediaForType(_Constants2.default.IMAGE,mediaSource);createBuffers(previousBuffers);eventBus.on(_Events2.default.CURRENT_TRACK_CHANGED,onCurrentTrackChanged,instance);for(var i=0;i<streamProcessors.length&&streamProcessors[i];i++){streamProcessors[i].getScheduleController().start();}setPreloaded(true);}instance={initialize:initialize,activate:activate,deactivate:deactivate,isActive:isActive,getDuration:getDuration,getStartTime:getStartTime,getId:getId,getStreamInfo:getStreamInfo,preload:preload,getFragmentController:getFragmentController,getThumbnailController:getThumbnailController,getBitrateListFor:getBitrateListFor,startEventController:startEventController,stopEventController:stopEventController,updateData:updateData,reset:reset,getProcessors:getProcessors,setMediaSource:setMediaSource,isMediaCodecCompatible:isMediaCodecCompatible,isProtectionCompatible:isProtectionCompatible,getPreloaded:getPreloaded,addInbandEvents:addInbandEvents};setup();return instance;}Stream.__dashjs_factory_name='Stream';exports.default=_FactoryMaker2.default.getClassFactory(Stream);\n//# sourceMappingURL=Stream.js.map\n","module.exports = require('./readable').Transform\n","'use strict';\nvar nativePropertyIsEnumerable = {}.propertyIsEnumerable;\nvar getOwnPropertyDescriptor = Object.getOwnPropertyDescriptor;\n\n// Nashorn ~ JDK8 bug\nvar NASHORN_BUG = getOwnPropertyDescriptor && !nativePropertyIsEnumerable.call({ 1: 2 }, 1);\n\n// `Object.prototype.propertyIsEnumerable` method implementation\n// https://tc39.github.io/ecma262/#sec-object.prototype.propertyisenumerable\nexports.f = NASHORN_BUG ? function propertyIsEnumerable(V) {\n  var descriptor = getOwnPropertyDescriptor(this, V);\n  return !!descriptor && descriptor.enumerable;\n} : nativePropertyIsEnumerable;\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _FactoryMaker=require('../../core/FactoryMaker');var _FactoryMaker2=_interopRequireDefault(_FactoryMaker);var _Debug=require('../../core/Debug');var _Debug2=_interopRequireDefault(_Debug);var _EventBus=require('../../core/EventBus');var _EventBus2=_interopRequireDefault(_EventBus);var _Events=require('../../core/events/Events');var _Events2=_interopRequireDefault(_Events);var _imsc=require('imsc');function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}function TTMLParser(){var context=this.context;var eventBus=(0,_EventBus2.default)(context).getInstance();/*\n     * This TTML parser follows \"EBU-TT-D SUBTITLING DISTRIBUTION FORMAT - tech3380\" spec - https://tech.ebu.ch/docs/tech/tech3380.pdf.\n     * */var instance=void 0,logger=void 0;var cueCounter=0;// Used to give every cue a unique ID.\nfunction setup(){logger=(0,_Debug2.default)(context).getInstance().getLogger(instance);}function getCueID(){var id='cue_TTML_'+cueCounter;cueCounter++;return id;}/**\n     * Parse the raw data and process it to return the HTML element representing the cue.\n     * Return the region to be processed and controlled (hide/show) by the caption controller.\n     * @param {string} data - raw data received from the TextSourceBuffer\n     * @param {number} offsetTime - offset time to apply to cue time\n     * @param {integer} startTimeSegment - startTime for the current segment\n     * @param {integer} endTimeSegment - endTime for the current segment\n     * @param {Array} images - images array referenced by subs MP4 box\n     */function parse(data,offsetTime,startTimeSegment,endTimeSegment,images){var errorMsg='';var captionArray=[];var startTime=void 0,endTime=void 0,i=void 0;var content={};var embeddedImages={};var currentImageId='';var accumulated_image_data='';var metadataHandler={onOpenTag:function onOpenTag(ns,name,attrs){if(name==='image'&&ns==='http://www.smpte-ra.org/schemas/2052-1/2010/smpte-tt'){if(!attrs[' imagetype']||attrs[' imagetype'].value!=='PNG'){logger.warn('smpte-tt imagetype != PNG. Discarded');return;}currentImageId=attrs['http://www.w3.org/XML/1998/namespace id'].value;}},onCloseTag:function onCloseTag(){if(currentImageId){embeddedImages[currentImageId]=accumulated_image_data.trim();}accumulated_image_data='';currentImageId='';},onText:function onText(contents){if(currentImageId){accumulated_image_data=accumulated_image_data+contents;}}};if(!data){errorMsg='no ttml data to parse';throw new Error(errorMsg);}content.data=data;eventBus.trigger(_Events2.default.TTML_TO_PARSE,content);var imsc1doc=(0,_imsc.fromXML)(content.data,function(msg){errorMsg=msg;},metadataHandler);eventBus.trigger(_Events2.default.TTML_PARSED,{ttmlString:content.data,ttmlDoc:imsc1doc});var mediaTimeEvents=imsc1doc.getMediaTimeEvents();for(i=0;i<mediaTimeEvents.length;i++){var isd=(0,_imsc.generateISD)(imsc1doc,mediaTimeEvents[i],function(error){errorMsg=error;});if(isd.contents.some(function(topLevelContents){return topLevelContents.contents.length;})){//be sure that mediaTimeEvents values are in the mp4 segment time ranges.\nstartTime=mediaTimeEvents[i]+offsetTime<startTimeSegment?startTimeSegment:mediaTimeEvents[i]+offsetTime;endTime=mediaTimeEvents[i+1]+offsetTime>endTimeSegment?endTimeSegment:mediaTimeEvents[i+1]+offsetTime;if(startTime<endTime){captionArray.push({start:startTime,end:endTime,type:'html',cueID:getCueID(),isd:isd,images:images,embeddedImages:embeddedImages});}}}if(errorMsg!==''){logger.error(errorMsg);throw new Error(errorMsg);}return captionArray;}instance={parse:parse};setup();return instance;}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n */TTMLParser.__dashjs_factory_name='TTMLParser';exports.default=_FactoryMaker2.default.getSingletonFactory(TTMLParser);\n//# sourceMappingURL=TTMLParser.js.map\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _Debug=require('../../core/Debug');var _Debug2=_interopRequireDefault(_Debug);var _IsoFile=require('./IsoFile');var _IsoFile2=_interopRequireDefault(_IsoFile);var _FactoryMaker=require('../../core/FactoryMaker');var _FactoryMaker2=_interopRequireDefault(_FactoryMaker);var _codemIsoboxer=require('codem-isoboxer');var _codemIsoboxer2=_interopRequireDefault(_codemIsoboxer);var _IsoBoxSearchInfo=require('../vo/IsoBoxSearchInfo');var _IsoBoxSearchInfo2=_interopRequireDefault(_IsoBoxSearchInfo);function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}function BoxParser()/*config*/{var logger=void 0,instance=void 0;var context=this.context;function setup(){logger=(0,_Debug2.default)(context).getInstance().getLogger(instance);}/**\n     * @param {ArrayBuffer} data\n     * @returns {IsoFile|null}\n     * @memberof BoxParser#\n     */function parse(data){if(!data)return null;if(data.fileStart===undefined){data.fileStart=0;}var parsedFile=_codemIsoboxer2.default.parseBuffer(data);var dashIsoFile=(0,_IsoFile2.default)(context).create();dashIsoFile.setData(parsedFile);return dashIsoFile;}/**\n     * From the list of type boxes to look for, returns the latest one that is fully completed (header + payload). This\n     * method only looks into the list of top boxes and doesn't analyze nested boxes.\n     * @param {string[]} types\n     * @param {ArrayBuffer|uint8Array} buffer\n     * @param {number} offset\n     * @returns {IsoBoxSearchInfo}\n     * @memberof BoxParser#\n     */function findLastTopIsoBoxCompleted(types,buffer,offset){if(offset===undefined){offset=0;}// 8 = size (uint32) + type (4 characters)\nif(!buffer||offset+8>=buffer.byteLength){return new _IsoBoxSearchInfo2.default(0,false);}var data=buffer instanceof ArrayBuffer?new Uint8Array(buffer):buffer;var boxInfo=void 0;var lastCompletedOffset=0;while(offset<data.byteLength){var boxSize=parseUint32(data,offset);var boxType=parseIsoBoxType(data,offset+4);if(boxSize===0){break;}if(offset+boxSize<=data.byteLength){if(types.indexOf(boxType)>=0){boxInfo=new _IsoBoxSearchInfo2.default(offset,true,boxSize);}else{lastCompletedOffset=offset+boxSize;}}offset+=boxSize;}if(!boxInfo){return new _IsoBoxSearchInfo2.default(lastCompletedOffset,false);}return boxInfo;}function getSamplesInfo(ab){if(!ab||ab.byteLength===0){return{sampleList:[],lastSequenceNumber:NaN,totalDuration:NaN,numSequences:NaN};}var isoFile=parse(ab);// zero or more moofs\nvar moofBoxes=isoFile.getBoxes('moof');// exactly one mfhd per moof\nvar mfhdBoxes=isoFile.getBoxes('mfhd');var sampleDuration=void 0,sampleCompositionTimeOffset=void 0,sampleCount=void 0,sampleSize=void 0,sampleDts=void 0,sampleList=void 0,sample=void 0,i=void 0,j=void 0,k=void 0,l=void 0,m=void 0,n=void 0,dataOffset=void 0,lastSequenceNumber=void 0,numSequences=void 0,totalDuration=void 0;numSequences=isoFile.getBoxes('moof').length;lastSequenceNumber=mfhdBoxes[mfhdBoxes.length-1].sequence_number;sampleCount=0;sampleList=[];var subsIndex=-1;var nextSubsSample=-1;for(l=0;l<moofBoxes.length;l++){var moofBox=moofBoxes[l];// zero or more trafs per moof\nvar trafBoxes=moofBox.getChildBoxes('traf');for(j=0;j<trafBoxes.length;j++){var trafBox=trafBoxes[j];// exactly one tfhd per traf\nvar tfhdBox=trafBox.getChildBox('tfhd');// zero or one tfdt per traf\nvar tfdtBox=trafBox.getChildBox('tfdt');sampleDts=tfdtBox.baseMediaDecodeTime;// zero or more truns per traf\nvar trunBoxes=trafBox.getChildBoxes('trun');// zero or more subs per traf\nvar subsBoxes=trafBox.getChildBoxes('subs');for(k=0;k<trunBoxes.length;k++){var trunBox=trunBoxes[k];sampleCount=trunBox.sample_count;dataOffset=(tfhdBox.base_data_offset||0)+(trunBox.data_offset||0);for(i=0;i<sampleCount;i++){sample=trunBox.samples[i];sampleDuration=sample.sample_duration!==undefined?sample.sample_duration:tfhdBox.default_sample_duration;sampleSize=sample.sample_size!==undefined?sample.sample_size:tfhdBox.default_sample_size;sampleCompositionTimeOffset=sample.sample_composition_time_offset!==undefined?sample.sample_composition_time_offset:0;var sampleData={'dts':sampleDts,'cts':sampleDts+sampleCompositionTimeOffset,'duration':sampleDuration,'offset':moofBox.offset+dataOffset,'size':sampleSize,'subSizes':[sampleSize]};if(subsBoxes){for(m=0;m<subsBoxes.length;m++){var subsBox=subsBoxes[m];if(subsIndex<subsBox.entry_count-1&&i>nextSubsSample){subsIndex++;nextSubsSample+=subsBox.entries[subsIndex].sample_delta;}if(i==nextSubsSample){sampleData.subSizes=[];var entry=subsBox.entries[subsIndex];for(n=0;n<entry.subsample_count;n++){sampleData.subSizes.push(entry.subsamples[n].subsample_size);}}}}sampleList.push(sampleData);dataOffset+=sampleSize;sampleDts+=sampleDuration;}}totalDuration=sampleDts-tfdtBox.baseMediaDecodeTime;}}return{sampleList:sampleList,lastSequenceNumber:lastSequenceNumber,totalDuration:totalDuration,numSequences:numSequences};}function getMediaTimescaleFromMoov(ab){var isoFile=parse(ab);var mdhdBox=isoFile?isoFile.getBox('mdhd'):undefined;return mdhdBox?mdhdBox.timescale:NaN;}function parseUint32(data,offset){return data[offset+3]>>>0|data[offset+2]<<8>>>0|data[offset+1]<<16>>>0|data[offset]<<24>>>0;}function parseIsoBoxType(data,offset){return String.fromCharCode(data[offset++])+String.fromCharCode(data[offset++])+String.fromCharCode(data[offset++])+String.fromCharCode(data[offset]);}function findInitRange(data){var initRange=null;var start=void 0,end=void 0;var isoFile=parse(data);if(!isoFile){return initRange;}var ftyp=isoFile.getBox('ftyp');var moov=isoFile.getBox('moov');logger.debug('Searching for initialization.');if(moov&&moov.isComplete){start=ftyp?ftyp.offset:moov.offset;end=moov.offset+moov.size-1;initRange=start+'-'+end;logger.debug('Found the initialization.  Range: '+initRange);}return initRange;}instance={parse:parse,findLastTopIsoBoxCompleted:findLastTopIsoBoxCompleted,getMediaTimescaleFromMoov:getMediaTimescaleFromMoov,getSamplesInfo:getSamplesInfo,findInitRange:findInitRange};setup();return instance;}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n */BoxParser.__dashjs_factory_name='BoxParser';exports.default=_FactoryMaker2.default.getSingletonFactory(BoxParser);\n//# sourceMappingURL=BoxParser.js.map\n","var defineWellKnownSymbol = require('../internals/define-well-known-symbol');\n\n// `Symbol.iterator` well-known symbol\n// https://tc39.github.io/ecma262/#sec-symbol.iterator\ndefineWellKnownSymbol('iterator');\n","var anObject = require('../internals/an-object');\nvar aPossiblePrototype = require('../internals/a-possible-prototype');\n\n// `Object.setPrototypeOf` method\n// https://tc39.github.io/ecma262/#sec-object.setprototypeof\n// Works with __proto__ only. Old v8 can't work with null proto objects.\n/* eslint-disable no-proto */\nmodule.exports = Object.setPrototypeOf || ('__proto__' in {} ? function () {\n  var CORRECT_SETTER = false;\n  var test = {};\n  var setter;\n  try {\n    setter = Object.getOwnPropertyDescriptor(Object.prototype, '__proto__').set;\n    setter.call(test, []);\n    CORRECT_SETTER = test instanceof Array;\n  } catch (error) { /* empty */ }\n  return function setPrototypeOf(O, proto) {\n    anObject(O);\n    aPossiblePrototype(proto);\n    if (CORRECT_SETTER) setter.call(O, proto);\n    else O.__proto__ = proto;\n    return O;\n  };\n}() : undefined);\n","var win;\n\nif (typeof window !== \"undefined\") {\n    win = window;\n} else if (typeof global !== \"undefined\") {\n    win = global;\n} else if (typeof self !== \"undefined\"){\n    win = self;\n} else {\n    win = {};\n}\n\nmodule.exports = win;\n","\"use strict\";Object.defineProperty(exports,\"__esModule\",{value:true});function _classCallCheck(instance,Constructor){if(!(instance instanceof Constructor)){throw new TypeError(\"Cannot call a class as a function\");}}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n *//**\n * @class\n * @ignore\n */var BufferLevel=/**\n     * @description This Object holds reference to the current buffer level and the time it was recorded.\n     */function BufferLevel(){_classCallCheck(this,BufferLevel);/**\n         * Real-Time | Time of the measurement of the buffer level.\n         * @public\n         */this.t=null;/**\n         * Level of the buffer in milliseconds. Indicates the playout duration for which\n         * media data of all active media components is available starting from the\n         * current playout time.\n         * @public\n         */this.level=null;};exports.default=BufferLevel;\n//# sourceMappingURL=BufferLevel.js.map\n","var TO_STRING_TAG_SUPPORT = require('../internals/to-string-tag-support');\nvar redefine = require('../internals/redefine');\nvar toString = require('../internals/object-to-string');\n\n// `Object.prototype.toString` method\n// https://tc39.github.io/ecma262/#sec-object.prototype.tostring\nif (!TO_STRING_TAG_SUPPORT) {\n  redefine(Object.prototype, 'toString', toString, { unsafe: true });\n}\n","var defineProperty = require('../internals/object-define-property').f;\nvar has = require('../internals/has');\nvar wellKnownSymbol = require('../internals/well-known-symbol');\n\nvar TO_STRING_TAG = wellKnownSymbol('toStringTag');\n\nmodule.exports = function (it, TAG, STATIC) {\n  if (it && !has(it = STATIC ? it : it.prototype, TO_STRING_TAG)) {\n    defineProperty(it, TO_STRING_TAG, { configurable: true, value: TAG });\n  }\n};\n","// Copyright Joyent, Inc. and other Node contributors.\n//\n// Permission is hereby granted, free of charge, to any person obtaining a\n// copy of this software and associated documentation files (the\n// \"Software\"), to deal in the Software without restriction, including\n// without limitation the rights to use, copy, modify, merge, publish,\n// distribute, sublicense, and/or sell copies of the Software, and to permit\n// persons to whom the Software is furnished to do so, subject to the\n// following conditions:\n//\n// The above copyright notice and this permission notice shall be included\n// in all copies or substantial portions of the Software.\n//\n// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS\n// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF\n// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN\n// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,\n// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR\n// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE\n// USE OR OTHER DEALINGS IN THE SOFTWARE.\n\nmodule.exports = Stream;\n\nvar EE = require('events').EventEmitter;\nvar inherits = require('inherits');\n\ninherits(Stream, EE);\nStream.Readable = require('readable-stream/readable.js');\nStream.Writable = require('readable-stream/writable.js');\nStream.Duplex = require('readable-stream/duplex.js');\nStream.Transform = require('readable-stream/transform.js');\nStream.PassThrough = require('readable-stream/passthrough.js');\n\n// Backwards-compat with node 0.4.x\nStream.Stream = Stream;\n\n\n\n// old-style streams.  Note that the pipe method (the only relevant\n// part of this class) is overridden in the Readable class.\n\nfunction Stream() {\n  EE.call(this);\n}\n\nStream.prototype.pipe = function(dest, options) {\n  var source = this;\n\n  function ondata(chunk) {\n    if (dest.writable) {\n      if (false === dest.write(chunk) && source.pause) {\n        source.pause();\n      }\n    }\n  }\n\n  source.on('data', ondata);\n\n  function ondrain() {\n    if (source.readable && source.resume) {\n      source.resume();\n    }\n  }\n\n  dest.on('drain', ondrain);\n\n  // If the 'end' option is not supplied, dest.end() will be called when\n  // source gets the 'end' or 'close' events.  Only dest.end() once.\n  if (!dest._isStdio && (!options || options.end !== false)) {\n    source.on('end', onend);\n    source.on('close', onclose);\n  }\n\n  var didOnEnd = false;\n  function onend() {\n    if (didOnEnd) return;\n    didOnEnd = true;\n\n    dest.end();\n  }\n\n\n  function onclose() {\n    if (didOnEnd) return;\n    didOnEnd = true;\n\n    if (typeof dest.destroy === 'function') dest.destroy();\n  }\n\n  // don't leave dangling pipes when there are errors.\n  function onerror(er) {\n    cleanup();\n    if (EE.listenerCount(this, 'error') === 0) {\n      throw er; // Unhandled stream error in pipe.\n    }\n  }\n\n  source.on('error', onerror);\n  dest.on('error', onerror);\n\n  // remove all the event listeners that were added.\n  function cleanup() {\n    source.removeListener('data', ondata);\n    dest.removeListener('drain', ondrain);\n\n    source.removeListener('end', onend);\n    source.removeListener('close', onclose);\n\n    source.removeListener('error', onerror);\n    dest.removeListener('error', onerror);\n\n    source.removeListener('end', cleanup);\n    source.removeListener('close', cleanup);\n\n    dest.removeListener('close', cleanup);\n  }\n\n  source.on('end', cleanup);\n  source.on('close', cleanup);\n\n  dest.on('close', cleanup);\n\n  dest.emit('pipe', source);\n\n  // Allow for unix-like usage: A.pipe(B).pipe(C)\n  return dest;\n};\n","export default function _classCallCheck(instance, Constructor) {\n  if (!(instance instanceof Constructor)) {\n    throw new TypeError(\"Cannot call a class as a function\");\n  }\n}","\"use strict\";Object.defineProperty(exports,\"__esModule\",{value:true});function _classCallCheck(instance,Constructor){if(!(instance instanceof Constructor)){throw new TypeError(\"Cannot call a class as a function\");}}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n *//**\n * @classdesc This Object holds reference to the manifest update information.\n * @ignore\n */var ManifestUpdate=/**\n     * @class\n     */function ManifestUpdate(){_classCallCheck(this,ManifestUpdate);/**\n         * Media Type Video | Audio | FragmentedText\n         * @public\n         */this.mediaType=null;/**\n         * MPD Type static | dynamic\n         * @public\n         */this.type=null;/**\n         * When this manifest update was requested\n         * @public\n         */this.requestTime=null;/**\n         * When this manifest update was received\n         * @public\n         */this.fetchTime=null;/**\n         * Calculated Availability Start time of the stream.\n         * @public\n         */this.availabilityStartTime=null;/**\n         * the seek point (liveEdge for dynamic, Stream[0].startTime for static)\n         * @public\n         */this.presentationStartTime=0;/**\n         * The calculated difference between the server and client wall clock time\n         * @public\n         */this.clientTimeOffset=0;/**\n         * Actual element.currentTime\n         * @public\n         */this.currentTime=null;/**\n         * Actual element.ranges\n         * @public\n         */this.buffered=null;/**\n         * Static is fixed value of zero. dynamic should be ((Now-@availabilityStartTime) - elementCurrentTime)\n         * @public\n         */this.latency=0;/**\n         * Array holding list of StreamInfo VO Objects\n         * @public\n         */this.streamInfo=[];/**\n         * Array holding list of RepresentationInfo VO Objects\n         * @public\n         */this.representationInfo=[];};/**\n * @classdesc This Object holds reference to the current period's stream information when the manifest was updated.\n * @ignore\n */var ManifestUpdateStreamInfo=/**\n     * @class\n     */function ManifestUpdateStreamInfo(){_classCallCheck(this,ManifestUpdateStreamInfo);/**\n         * Stream@id\n         * @public\n         */this.id=null;/**\n         * Period Index\n         * @public\n         */this.index=null;/**\n         * Stream@start\n         * @public\n         */this.start=null;/**\n         * Stream@duration\n         * @public\n         */this.duration=null;};/**\n * @classdesc This Object holds reference to the current representation's info when the manifest was updated.\n * @ignore\n */var ManifestUpdateRepresentationInfo=/**\n     * @class\n     */function ManifestUpdateRepresentationInfo(){_classCallCheck(this,ManifestUpdateRepresentationInfo);/**\n         * Track@id\n         * @public\n         */this.id=null;/**\n         * Representation Index\n         * @public\n         */this.index=null;/**\n         * Media Type Video | Audio | FragmentedText\n         * @public\n         */this.mediaType=null;/**\n         * Which representation\n         * @public\n         */this.streamIndex=null;/**\n         * Holds reference to @presentationTimeOffset\n         * @public\n         */this.presentationTimeOffset=null;/**\n         * Holds reference to @startNumber\n         * @public\n         */this.startNumber=null;/**\n         * list|template|timeline\n         * @public\n         */this.fragmentInfoType=null;};exports.ManifestUpdate=ManifestUpdate;exports.ManifestUpdateStreamInfo=ManifestUpdateStreamInfo;exports.ManifestUpdateRepresentationInfo=ManifestUpdateRepresentationInfo;\n//# sourceMappingURL=ManifestUpdate.js.map\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _Constants=require('../streaming/constants/Constants');var _Constants2=_interopRequireDefault(_Constants);var _HTTPRequest=require('../streaming/vo/metrics/HTTPRequest');var _FactoryMaker=require('../core/FactoryMaker');var _FactoryMaker2=_interopRequireDefault(_FactoryMaker);var _MetricsConstants=require('../streaming/constants/MetricsConstants');var _MetricsConstants2=_interopRequireDefault(_MetricsConstants);var _Round=require('./utils/Round10');var _Round2=_interopRequireDefault(_Round);var _MetricsModel=require('../streaming/models/MetricsModel');var _MetricsModel2=_interopRequireDefault(_MetricsModel);var _PlayList=require('../streaming/vo/metrics/PlayList');function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}/**\n * @module DashMetrics\n * @ignore\n * @param {object} config\n */function DashMetrics(config){config=config||{};var context=this.context;var instance=void 0,playListTraceMetricsClosed=void 0,playListTraceMetrics=void 0,playListMetrics=void 0;var metricsModel=config.metricsModel;function setup(){metricsModel=metricsModel||(0,_MetricsModel2.default)(context).getInstance({settings:config.settings});resetInitialSettings();}function resetInitialSettings(){playListTraceMetricsClosed=true;playListTraceMetrics=null;playListMetrics=null;}/**\n     * @param {string} mediaType\n     * @returns {*}\n     * @memberof module:DashMetrics\n     * @instance\n     */function getCurrentRepresentationSwitch(mediaType){var metrics=metricsModel.getMetricsFor(mediaType,true);return getCurrent(metrics,_MetricsConstants2.default.TRACK_SWITCH);}/**\n     * @param {string} mediaType\n     * @param {Date} t time of the switch event\n     * @param {Date} mt media presentation time\n     * @param {string} to id of representation\n     * @param {string} lto if present, subrepresentation reference\n     * @memberof module:DashMetrics\n     * @instance\n     */function addRepresentationSwitch(mediaType,t,mt,to,lto){metricsModel.addRepresentationSwitch(mediaType,t,mt,to,lto);}/**\n     * @param {string} type\n     * @returns {number}\n     * @instance\n     */function getCurrentBufferState(type){var metrics=metricsModel.getMetricsFor(type,true);return getCurrent(metrics,_MetricsConstants2.default.BUFFER_STATE);}/**\n     * @param {string} type\n     * @returns {number}\n     * @memberof module:DashMetrics\n     * @instance\n     */function getCurrentBufferLevel(type){var metrics=metricsModel.getMetricsFor(type,true);var metric=getCurrent(metrics,_MetricsConstants2.default.BUFFER_LEVEL);if(metric){return _Round2.default.round10(metric.level/1000,-3);}return 0;}/**\n     * @param {string} mediaType\n     * @param {number} t\n     * @param {number} level\n     * @memberof module:DashMetrics\n     * @instance\n     */function addBufferLevel(mediaType,t,level){metricsModel.addBufferLevel(mediaType,t,level);}/**\n     * @param {string} mediaType\n     * @param {string} state\n     * @param {number} target\n     * @memberof module:DashMetrics\n     * @instance\n     */function addBufferState(mediaType,state,target){metricsModel.addBufferState(mediaType,state,target);}/**\n     * @memberof module:DashMetrics\n     * @instance\n     */function clearAllCurrentMetrics(){metricsModel.clearAllCurrentMetrics();}/**\n     * @param {string} mediaType\n     * @returns {*}\n     * @memberof module:DashMetrics\n     * @instance\n     */function getCurrentHttpRequest(mediaType){var metrics=metricsModel.getMetricsFor(mediaType,true);if(!metrics){return null;}var httpList=metrics.HttpList;var currentHttpList=null;var httpListLastIndex=void 0;if(!httpList||httpList.length<=0){return null;}httpListLastIndex=httpList.length-1;while(httpListLastIndex>=0){if(httpList[httpListLastIndex].responsecode){currentHttpList=httpList[httpListLastIndex];break;}httpListLastIndex--;}return currentHttpList;}/**\n     * @param {string} mediaType\n     * @returns {*}\n     * @memberof module:DashMetrics\n     * @instance\n     */function getHttpRequests(mediaType){var metrics=metricsModel.getMetricsFor(mediaType,true);if(!metrics){return[];}return!!metrics.HttpList?metrics.HttpList:[];}/**\n     * @param {string} mediaType\n     * @param {Array} loadingRequests\n     * @param {Array} executedRequests\n     * @memberof module:DashMetrics\n     * @instance\n     */function addRequestsQueue(mediaType,loadingRequests,executedRequests){metricsModel.addRequestsQueue(mediaType,loadingRequests,executedRequests);}/**\n     * @param {MetricsList} metrics\n     * @param {string} metricName\n     * @returns {*}\n     * @memberof module:DashMetrics\n     * @instance\n     */function getCurrent(metrics,metricName){if(!metrics){return null;}var list=metrics[metricName];return!list||list.length===0?null:list[list.length-1];}/**\n     * @returns {*}\n     * @memberof module:DashMetrics\n     * @instance\n     */function getCurrentDroppedFrames(){var metrics=metricsModel.getMetricsFor(_Constants2.default.VIDEO,true);return getCurrent(metrics,_MetricsConstants2.default.DROPPED_FRAMES);}/**\n     * @param {number} quality\n     * @memberof module:DashMetrics\n     * @instance\n     */function addDroppedFrames(quality){metricsModel.addDroppedFrames(_Constants2.default.VIDEO,quality);}/**\n     * @param {string} mediaType\n     * @returns {*}\n     * @memberof module:DashMetrics\n     * @instance\n     */function getCurrentSchedulingInfo(mediaType){var metrics=metricsModel.getMetricsFor(mediaType,true);return getCurrent(metrics,_MetricsConstants2.default.SCHEDULING_INFO);}/**\n     * @param {object} request\n     * @param {string} state\n     * @memberof module:DashMetrics\n     * @instance\n     */function addSchedulingInfo(request,state){metricsModel.addSchedulingInfo(request.mediaType,new Date(),request.type,request.startTime,request.availabilityStartTime,request.duration,request.quality,request.range,state);}/**\n     * @returns {*}\n     * @memberof module:DashMetrics\n     * @instance\n     */function getCurrentManifestUpdate(){var streamMetrics=metricsModel.getMetricsFor(_Constants2.default.STREAM);return getCurrent(streamMetrics,_MetricsConstants2.default.MANIFEST_UPDATE);}/**\n     * @param {object} updatedFields fields to be updated\n     * @memberof module:DashMetrics\n     * @instance\n     */function updateManifestUpdateInfo(updatedFields){var manifestUpdate=this.getCurrentManifestUpdate();metricsModel.updateManifestUpdateInfo(manifestUpdate,updatedFields);}/**\n     * @param {object} streamInfo\n     * @memberof module:DashMetrics\n     * @instance\n     */function addManifestUpdateStreamInfo(streamInfo){if(streamInfo){var manifestUpdate=this.getCurrentManifestUpdate();metricsModel.addManifestUpdateStreamInfo(manifestUpdate,streamInfo.id,streamInfo.index,streamInfo.start,streamInfo.duration);}}/**\n     * @param {object} request\n     * @memberof module:DashMetrics\n     * @instance\n     */function addManifestUpdate(request){metricsModel.addManifestUpdate(_Constants2.default.STREAM,request.type,request.requestStartDate,request.requestEndDate);}/**\n     * @param {object} request\n     * @param {string} responseURL\n     * @param {number} responseStatus\n     * @param {object} responseHeaders\n     * @param {object} traces\n     * @memberof module:DashMetrics\n     * @instance\n     */function addHttpRequest(request,responseURL,responseStatus,responseHeaders,traces){metricsModel.addHttpRequest(request.mediaType,null,request.type,request.url,request.quality,responseURL,request.serviceLocation||null,request.range||null,request.requestStartDate,request.firstByteDate,request.requestEndDate,responseStatus,request.duration,responseHeaders,traces);}/**\n     * @param {object} representation\n     * @param {string} mediaType\n     * @memberof module:DashMetrics\n     * @instance\n     */function addManifestUpdateRepresentationInfo(representation,mediaType){if(representation){var manifestUpdateInfo=this.getCurrentManifestUpdate();metricsModel.addManifestUpdateRepresentationInfo(manifestUpdateInfo,representation.id,representation.index,representation.streamIndex,mediaType,representation.presentationTimeOffset,representation.startNumber,representation.fragmentInfoType);}}/**\n     * @param {string} mediaType\n     * @returns {*}\n     * @memberof module:DashMetrics\n     * @instance\n     */function getCurrentDVRInfo(mediaType){var metrics=mediaType?metricsModel.getMetricsFor(mediaType,true):metricsModel.getMetricsFor(_Constants2.default.VIDEO,true)||metricsModel.getMetricsFor(_Constants2.default.AUDIO,true);return getCurrent(metrics,_MetricsConstants2.default.DVR_INFO);}/**\n     * @param {string} mediaType\n     * @param {Date} currentTime time of the switch event\n     * @param {object} mpd mpd reference\n     * @param {object} range range of the dvr info\n     * @memberof module:DashMetrics\n     * @instance\n     */function addDVRInfo(mediaType,currentTime,mpd,range){metricsModel.addDVRInfo(mediaType,currentTime,mpd,range);}/**\n     * @param {string} id\n     * @returns {*}\n     * @memberof module:DashMetrics\n     * @instance\n     */function getLatestMPDRequestHeaderValueByID(id){var headers={};var httpRequestList=void 0,httpRequest=void 0,i=void 0;httpRequestList=getHttpRequests(_Constants2.default.STREAM);for(i=httpRequestList.length-1;i>=0;i--){httpRequest=httpRequestList[i];if(httpRequest.type===_HTTPRequest.HTTPRequest.MPD_TYPE){headers=parseResponseHeaders(httpRequest._responseHeaders);break;}}return headers[id]===undefined?null:headers[id];}/**\n     * @param {string} type\n     * @param {string} id\n     * @returns {*}\n     * @memberof module:DashMetrics\n     * @instance\n     */function getLatestFragmentRequestHeaderValueByID(type,id){var headers={};var httpRequest=getCurrentHttpRequest(type,true);if(httpRequest){headers=parseResponseHeaders(httpRequest._responseHeaders);}return headers[id]===undefined?null:headers[id];}function parseResponseHeaders(headerStr){var headers={};if(!headerStr){return headers;}// Trim headerStr to fix a MS Edge bug with xhr.getAllResponseHeaders method\n// which send a string starting with a \"\\n\" character\nvar headerPairs=headerStr.trim().split('\\r\\n');for(var i=0,ilen=headerPairs.length;i<ilen;i++){var headerPair=headerPairs[i];var index=headerPair.indexOf(': ');if(index>0){headers[headerPair.substring(0,index)]=headerPair.substring(index+2);}}return headers;}/**\n     * @memberof module:DashMetrics\n     * @instance\n     */function addPlayList(){if(playListMetrics){metricsModel.addPlayList(playListMetrics);playListMetrics=null;}}function createPlaylistMetrics(mediaStartTime,startReason){playListMetrics=new _PlayList.PlayList();playListMetrics.start=new Date();playListMetrics.mstart=mediaStartTime;playListMetrics.starttype=startReason;}function createPlaylistTraceMetrics(representationId,mediaStartTime,speed){if(playListTraceMetricsClosed===true){playListTraceMetricsClosed=false;playListTraceMetrics=new _PlayList.PlayListTrace();playListTraceMetrics.representationid=representationId;playListTraceMetrics.start=new Date();playListTraceMetrics.mstart=mediaStartTime;playListTraceMetrics.playbackspeed=speed;}}function updatePlayListTraceMetrics(traceToUpdate){if(playListTraceMetrics){for(var field in playListTraceMetrics){playListTraceMetrics[field]=traceToUpdate[field];}}}function pushPlayListTraceMetrics(endTime,reason){if(playListTraceMetricsClosed===false&&playListMetrics&&playListTraceMetrics&&playListTraceMetrics.start){var startTime=playListTraceMetrics.start;var duration=endTime.getTime()-startTime.getTime();playListTraceMetrics.duration=duration;playListTraceMetrics.stopreason=reason;playListMetrics.trace.push(playListTraceMetrics);playListTraceMetricsClosed=true;}}/**\n     * @param {object} errors\n     * @memberof module:DashMetrics\n     * @instance\n     */function addDVBErrors(errors){metricsModel.addDVBErrors(errors);}instance={getCurrentRepresentationSwitch:getCurrentRepresentationSwitch,getCurrentBufferState:getCurrentBufferState,getCurrentBufferLevel:getCurrentBufferLevel,getCurrentHttpRequest:getCurrentHttpRequest,getHttpRequests:getHttpRequests,getCurrentDroppedFrames:getCurrentDroppedFrames,getCurrentSchedulingInfo:getCurrentSchedulingInfo,getCurrentDVRInfo:getCurrentDVRInfo,getCurrentManifestUpdate:getCurrentManifestUpdate,getLatestFragmentRequestHeaderValueByID:getLatestFragmentRequestHeaderValueByID,getLatestMPDRequestHeaderValueByID:getLatestMPDRequestHeaderValueByID,addRepresentationSwitch:addRepresentationSwitch,addDVRInfo:addDVRInfo,updateManifestUpdateInfo:updateManifestUpdateInfo,addManifestUpdateStreamInfo:addManifestUpdateStreamInfo,addManifestUpdateRepresentationInfo:addManifestUpdateRepresentationInfo,addManifestUpdate:addManifestUpdate,addHttpRequest:addHttpRequest,addSchedulingInfo:addSchedulingInfo,addRequestsQueue:addRequestsQueue,addBufferLevel:addBufferLevel,addBufferState:addBufferState,addDroppedFrames:addDroppedFrames,addPlayList:addPlayList,addDVBErrors:addDVBErrors,createPlaylistMetrics:createPlaylistMetrics,createPlaylistTraceMetrics:createPlaylistTraceMetrics,updatePlayListTraceMetrics:updatePlayListTraceMetrics,pushPlayListTraceMetrics:pushPlayListTraceMetrics,clearAllCurrentMetrics:clearAllCurrentMetrics};setup();return instance;}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n */DashMetrics.__dashjs_factory_name='DashMetrics';exports.default=_FactoryMaker2.default.getSingletonFactory(DashMetrics);\n//# sourceMappingURL=DashMetrics.js.map\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _Constants=require('../constants/Constants');var _Constants2=_interopRequireDefault(_Constants);var _Events=require('../../core/events/Events');var _Events2=_interopRequireDefault(_Events);var _EventBus=require('../../core/EventBus');var _EventBus2=_interopRequireDefault(_EventBus);var _FactoryMaker=require('../../core/FactoryMaker');var _FactoryMaker2=_interopRequireDefault(_FactoryMaker);var _Debug=require('../../core/Debug');var _Debug2=_interopRequireDefault(_Debug);function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}var TRACK_SWITCH_MODE_NEVER_REPLACE='neverReplace';/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n */var TRACK_SWITCH_MODE_ALWAYS_REPLACE='alwaysReplace';var TRACK_SELECTION_MODE_HIGHEST_BITRATE='highestBitrate';var TRACK_SELECTION_MODE_WIDEST_RANGE='widestRange';var DEFAULT_INIT_TRACK_SELECTION_MODE=TRACK_SELECTION_MODE_HIGHEST_BITRATE;function MediaController(){var context=this.context;var eventBus=(0,_EventBus2.default)(context).getInstance();var instance=void 0,logger=void 0,tracks=void 0,initialSettings=void 0,selectionMode=void 0,switchMode=void 0,domStorage=void 0;var validTrackSwitchModes=[TRACK_SWITCH_MODE_ALWAYS_REPLACE,TRACK_SWITCH_MODE_NEVER_REPLACE];var validTrackSelectionModes=[TRACK_SELECTION_MODE_HIGHEST_BITRATE,TRACK_SELECTION_MODE_WIDEST_RANGE];function setup(){logger=(0,_Debug2.default)(context).getInstance().getLogger(instance);reset();}/**\n     * @param {string} type\n     * @param {StreamInfo} streamInfo\n     * @memberof MediaController#\n     */function checkInitialMediaSettingsForType(type,streamInfo){var settings=getInitialSettings(type);var tracksForType=getTracksFor(type,streamInfo);var tracks=[];if(type===_Constants2.default.FRAGMENTED_TEXT){// Choose the first track\nsetTrack(tracksForType[0]);return;}if(!settings){settings=domStorage.getSavedMediaSettings(type);setInitialSettings(type,settings);}if(!tracksForType||tracksForType.length===0)return;if(settings){tracksForType.forEach(function(track){if(matchSettings(settings,track)){tracks.push(track);}});}if(tracks.length===0){setTrack(selectInitialTrack(tracksForType));}else{if(tracks.length>1){setTrack(selectInitialTrack(tracks));}else{setTrack(tracks[0]);}}}/**\n     * @param {MediaInfo} track\n     * @memberof MediaController#\n     */function addTrack(track){if(!track)return;var mediaType=track.type;if(!isMultiTrackSupportedByType(mediaType))return;var streamId=track.streamInfo.id;if(!tracks[streamId]){tracks[streamId]=createTrackInfo();}var mediaTracks=tracks[streamId][mediaType].list;for(var i=0,len=mediaTracks.length;i<len;++i){//track is already set.\nif(isTracksEqual(mediaTracks[i],track)){return;}}mediaTracks.push(track);var initSettings=getInitialSettings(mediaType);if(initSettings&&matchSettings(initSettings,track)&&!getCurrentTrackFor(mediaType,track.streamInfo)){setTrack(track);}}/**\n     * @param {string} type\n     * @param {StreamInfo} streamInfo\n     * @returns {Array}\n     * @memberof MediaController#\n     */function getTracksFor(type,streamInfo){if(!type||!streamInfo)return[];var id=streamInfo.id;if(!tracks[id]||!tracks[id][type])return[];return tracks[id][type].list;}/**\n     * @param {string} type\n     * @param {StreamInfo} streamInfo\n     * @returns {Object|null}\n     * @memberof MediaController#\n     */function getCurrentTrackFor(type,streamInfo){if(!type||!streamInfo||streamInfo&&!tracks[streamInfo.id])return null;return tracks[streamInfo.id][type].current;}/**\n     * @param {MediaInfo} track\n     * @returns {boolean}\n     * @memberof MediaController#\n     */function isCurrentTrack(track){if(!track){return false;}var type=track.type;var id=track.streamInfo.id;return tracks[id]&&tracks[id][type]&&isTracksEqual(tracks[id][type].current,track);}/**\n     * @param {MediaInfo} track\n     * @memberof MediaController#\n     */function setTrack(track){if(!track||!track.streamInfo)return;var type=track.type;var streamInfo=track.streamInfo;var id=streamInfo.id;var current=getCurrentTrackFor(type,streamInfo);if(!tracks[id]||!tracks[id][type]||isTracksEqual(track,current))return;tracks[id][type].current=track;if(tracks[id][type].current){eventBus.trigger(_Events2.default.CURRENT_TRACK_CHANGED,{oldMediaInfo:current,newMediaInfo:track,switchMode:switchMode[type]});}var settings=extractSettings(track);if(!settings||!tracks[id][type].storeLastSettings)return;if(settings.roles){settings.role=settings.roles[0];delete settings.roles;}if(settings.accessibility){settings.accessibility=settings.accessibility[0];}if(settings.audioChannelConfiguration){settings.audioChannelConfiguration=settings.audioChannelConfiguration[0];}domStorage.setSavedMediaSettings(type,settings);}/**\n     * @param {string} type\n     * @param {Object} value\n     * @memberof MediaController#\n     */function setInitialSettings(type,value){if(!type||!value)return;initialSettings[type]=value;}/**\n     * @param {string} type\n     * @returns {Object|null}\n     * @memberof MediaController#\n     */function getInitialSettings(type){if(!type)return null;return initialSettings[type];}/**\n     * @param {string} type\n     * @param {string} mode\n     * @memberof MediaController#\n     */function setSwitchMode(type,mode){var isModeSupported=validTrackSwitchModes.indexOf(mode)!==-1;if(!isModeSupported){logger.warn('Track switch mode is not supported: '+mode);return;}switchMode[type]=mode;}/**\n     * @param {string} type\n     * @returns {string} mode\n     * @memberof MediaController#\n     */function getSwitchMode(type){return switchMode[type];}/**\n     * @param {string} mode\n     * @memberof MediaController#\n     */function setSelectionModeForInitialTrack(mode){var isModeSupported=validTrackSelectionModes.indexOf(mode)!==-1;if(!isModeSupported){logger.warn('Track selection mode is not supported: '+mode);return;}selectionMode=mode;}/**\n     * @returns {string} mode\n     * @memberof MediaController#\n     */function getSelectionModeForInitialTrack(){return selectionMode||DEFAULT_INIT_TRACK_SELECTION_MODE;}/**\n     * @param {string} type\n     * @returns {boolean}\n     * @memberof MediaController#\n     */function isMultiTrackSupportedByType(type){return type===_Constants2.default.AUDIO||type===_Constants2.default.VIDEO||type===_Constants2.default.TEXT||type===_Constants2.default.FRAGMENTED_TEXT||type===_Constants2.default.IMAGE;}/**\n     * @param {MediaInfo} t1 - first track to compare\n     * @param {MediaInfo} t2 - second track to compare\n     * @returns {boolean}\n     * @memberof MediaController#\n     */function isTracksEqual(t1,t2){if(!t1&&!t2){return true;}if(!t1||!t2){return false;}var sameId=t1.id===t2.id;var sameViewpoint=t1.viewpoint===t2.viewpoint;var sameLang=t1.lang===t2.lang;var sameRoles=t1.roles.toString()===t2.roles.toString();var sameAccessibility=t1.accessibility.toString()===t2.accessibility.toString();var sameAudioChannelConfiguration=t1.audioChannelConfiguration.toString()===t2.audioChannelConfiguration.toString();return sameId&&sameViewpoint&&sameLang&&sameRoles&&sameAccessibility&&sameAudioChannelConfiguration;}function setConfig(config){if(!config)return;if(config.domStorage){domStorage=config.domStorage;}}/**\n     * @memberof MediaController#\n     */function reset(){tracks={};resetInitialSettings();resetSwitchMode();}function extractSettings(mediaInfo){var settings={lang:mediaInfo.lang,viewpoint:mediaInfo.viewpoint,roles:mediaInfo.roles,accessibility:mediaInfo.accessibility,audioChannelConfiguration:mediaInfo.audioChannelConfiguration};var notEmpty=settings.lang||settings.viewpoint||settings.role&&settings.role.length>0||settings.accessibility&&settings.accessibility.length>0||settings.audioChannelConfiguration&&settings.audioChannelConfiguration.length>0;return notEmpty?settings:null;}function matchSettings(settings,track){var matchLang=!settings.lang||track.lang.match(settings.lang);var matchViewPoint=!settings.viewpoint||settings.viewpoint===track.viewpoint;var matchRole=!settings.role||!!track.roles.filter(function(item){return item===settings.role;})[0];var matchAccessibility=!settings.accessibility||!!track.accessibility.filter(function(item){return item===settings.accessibility;})[0];var matchAudioChannelConfiguration=!settings.audioChannelConfiguration||!!track.audioChannelConfiguration.filter(function(item){return item===settings.audioChannelConfiguration;})[0];return matchLang&&matchViewPoint&&matchRole&&matchAccessibility&&matchAudioChannelConfiguration;}function resetSwitchMode(){switchMode={audio:TRACK_SWITCH_MODE_ALWAYS_REPLACE,video:TRACK_SWITCH_MODE_NEVER_REPLACE};}function resetInitialSettings(){initialSettings={audio:null,video:null};}function selectInitialTrack(tracks){var mode=getSelectionModeForInitialTrack();var tmpArr=[];var getTracksWithHighestBitrate=function getTracksWithHighestBitrate(trackArr){var max=0;var result=[];var tmp=void 0;trackArr.forEach(function(track){tmp=Math.max.apply(Math,track.bitrateList.map(function(obj){return obj.bandwidth;}));if(tmp>max){max=tmp;result=[track];}else if(tmp===max){result.push(track);}});return result;};var getTracksWithWidestRange=function getTracksWithWidestRange(trackArr){var max=0;var result=[];var tmp=void 0;trackArr.forEach(function(track){tmp=track.representationCount;if(tmp>max){max=tmp;result=[track];}else if(tmp===max){result.push(track);}});return result;};switch(mode){case TRACK_SELECTION_MODE_HIGHEST_BITRATE:tmpArr=getTracksWithHighestBitrate(tracks);if(tmpArr.length>1){tmpArr=getTracksWithWidestRange(tmpArr);}break;case TRACK_SELECTION_MODE_WIDEST_RANGE:tmpArr=getTracksWithWidestRange(tracks);if(tmpArr.length>1){tmpArr=getTracksWithHighestBitrate(tracks);}break;default:logger.warn('Track selection mode is not supported: '+mode);break;}return tmpArr[0];}function createTrackInfo(){return{audio:{list:[],storeLastSettings:true,current:null},video:{list:[],storeLastSettings:true,current:null},text:{list:[],storeLastSettings:true,current:null},fragmentedText:{list:[],storeLastSettings:true,current:null},image:{list:[],storeLastSettings:true,current:null}};}instance={checkInitialMediaSettingsForType:checkInitialMediaSettingsForType,addTrack:addTrack,getTracksFor:getTracksFor,getCurrentTrackFor:getCurrentTrackFor,isCurrentTrack:isCurrentTrack,setTrack:setTrack,setInitialSettings:setInitialSettings,getInitialSettings:getInitialSettings,setSwitchMode:setSwitchMode,getSwitchMode:getSwitchMode,setSelectionModeForInitialTrack:setSelectionModeForInitialTrack,getSelectionModeForInitialTrack:getSelectionModeForInitialTrack,isMultiTrackSupportedByType:isMultiTrackSupportedByType,isTracksEqual:isTracksEqual,setConfig:setConfig,reset:reset};setup();return instance;}MediaController.__dashjs_factory_name='MediaController';var factory=_FactoryMaker2.default.getSingletonFactory(MediaController);factory.TRACK_SWITCH_MODE_NEVER_REPLACE=TRACK_SWITCH_MODE_NEVER_REPLACE;factory.TRACK_SWITCH_MODE_ALWAYS_REPLACE=TRACK_SWITCH_MODE_ALWAYS_REPLACE;factory.TRACK_SELECTION_MODE_HIGHEST_BITRATE=TRACK_SELECTION_MODE_HIGHEST_BITRATE;factory.TRACK_SELECTION_MODE_WIDEST_RANGE=TRACK_SELECTION_MODE_WIDEST_RANGE;factory.DEFAULT_INIT_TRACK_SELECTION_MODE=DEFAULT_INIT_TRACK_SELECTION_MODE;_FactoryMaker2.default.updateSingletonFactory(MediaController.__dashjs_factory_name,factory);exports.default=factory;\n//# sourceMappingURL=MediaController.js.map\n","\"use strict\";Object.defineProperty(exports,\"__esModule\",{value:true});function _classCallCheck(instance,Constructor){if(!(instance instanceof Constructor)){throw new TypeError(\"Cannot call a class as a function\");}}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n *//**\n * @class\n * @ignore\n */var DVRInfo=/**\n     * @description This Object holds reference to DVR availability window information.\n     */function DVRInfo(){_classCallCheck(this,DVRInfo);/**\n         * The current time of the video element when this was created.\n         * @public\n         */this.time=null;/**\n         * The current Segment Availability Range as an object with start and end properties.\n         * It's delta defined by the timeShiftBufferDepth MPD attribute.\n         * @public\n         */this.range=null;/**\n         * Reference to the internal ManifestInfo.js VO.\n         * @public\n         */this.manifestInfo=null;};exports.default=DVRInfo;\n//# sourceMappingURL=DVRInfo.js.map\n","var win;\n\nif (typeof window !== \"undefined\") {\n    win = window;\n} else if (typeof global !== \"undefined\") {\n    win = global;\n} else if (typeof self !== \"undefined\"){\n    win = self;\n} else {\n    win = {};\n}\n\nmodule.exports = win;\n","'use strict';\n\n/**\n * Determines whether the specified URL is absolute\n *\n * @param {string} url The URL to test\n * @returns {boolean} True if the specified URL is absolute, otherwise false\n */\nmodule.exports = function isAbsoluteURL(url) {\n  // A URL is considered absolute if it begins with \"<scheme>://\" or \"//\" (protocol-relative URL).\n  // RFC 3986 defines scheme name as a sequence of characters beginning with a letter and followed\n  // by any combination of letters, digits, plus, period, or hyphen.\n  return /^([a-z][a-z\\d\\+\\-\\.]*:)?\\/\\//i.test(url);\n};\n","var check = function (it) {\n  return it && it.Math == Math && it;\n};\n\n// https://github.com/zloirock/core-js/issues/86#issuecomment-115759028\nmodule.exports =\n  // eslint-disable-next-line no-undef\n  check(typeof globalThis == 'object' && globalThis) ||\n  check(typeof window == 'object' && window) ||\n  check(typeof self == 'object' && self) ||\n  check(typeof global == 'object' && global) ||\n  // eslint-disable-next-line no-new-func\n  Function('return this')();\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _ProtectionKeyController=require('../controllers/ProtectionKeyController');var _ProtectionKeyController2=_interopRequireDefault(_ProtectionKeyController);var _NeedKey=require('../vo/NeedKey');var _NeedKey2=_interopRequireDefault(_NeedKey);var _ProtectionErrors=require('../errors/ProtectionErrors');var _ProtectionErrors2=_interopRequireDefault(_ProtectionErrors);var _DashJSError=require('../../vo/DashJSError');var _DashJSError2=_interopRequireDefault(_DashJSError);var _KeyMessage=require('../vo/KeyMessage');var _KeyMessage2=_interopRequireDefault(_KeyMessage);var _KeySystemAccess=require('../vo/KeySystemAccess');var _KeySystemAccess2=_interopRequireDefault(_KeySystemAccess);var _ProtectionConstants=require('../../constants/ProtectionConstants');var _ProtectionConstants2=_interopRequireDefault(_ProtectionConstants);function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}function ProtectionModel_21Jan2015(config){config=config||{};var context=this.context;var eventBus=config.eventBus;//Need to pass in here so we can use same instance since this is optional module\nvar events=config.events;var debug=config.debug;var instance=void 0,logger=void 0,keySystem=void 0,videoElement=void 0,mediaKeys=void 0,sessions=void 0,eventHandler=void 0,protectionKeyController=void 0;function setup(){logger=debug.getLogger(instance);keySystem=null;videoElement=null;mediaKeys=null;sessions=[];protectionKeyController=(0,_ProtectionKeyController2.default)(context).getInstance();eventHandler=createEventHandler();}function reset(){var numSessions=sessions.length;var session=void 0;if(numSessions!==0){(function(){// Called when we are done closing a session.  Success or fail\nvar done=function done(session){removeSession(session);if(sessions.length===0){if(videoElement){videoElement.removeEventListener('encrypted',eventHandler);videoElement.setMediaKeys(null).then(function(){eventBus.trigger(events.TEARDOWN_COMPLETE);});}else{eventBus.trigger(events.TEARDOWN_COMPLETE);}}};for(var i=0;i<numSessions;i++){session=sessions[i];(function(s){// Override closed promise resolver\nsession.session.closed.then(function(){done(s);});// Close the session and handle errors, otherwise promise\n// resolver above will be called\ncloseKeySessionInternal(session).catch(function(){done(s);});})(session);}})();}else{eventBus.trigger(events.TEARDOWN_COMPLETE);}}function stop(){// Close and remove not usable sessions\nvar session=void 0;for(var i=0;i<sessions.length;i++){session=sessions[i];if(!session.getUsable()){closeKeySessionInternal(session).catch(function(){removeSession(session);});}}}function getKeySystem(){return keySystem;}function getAllInitData(){var retVal=[];for(var i=0;i<sessions.length;i++){if(sessions[i].initData){retVal.push(sessions[i].initData);}}return retVal;}function requestKeySystemAccess(ksConfigurations){requestKeySystemAccessInternal(ksConfigurations,0);}function selectKeySystem(keySystemAccess){keySystemAccess.mksa.createMediaKeys().then(function(mkeys){keySystem=keySystemAccess.keySystem;mediaKeys=mkeys;if(videoElement){videoElement.setMediaKeys(mediaKeys).then(function(){eventBus.trigger(events.INTERNAL_KEY_SYSTEM_SELECTED);});}else{eventBus.trigger(events.INTERNAL_KEY_SYSTEM_SELECTED);}}).catch(function(){eventBus.trigger(events.INTERNAL_KEY_SYSTEM_SELECTED,{error:'Error selecting keys system ('+keySystemAccess.keySystem.systemString+')! Could not create MediaKeys -- TODO'});});}function setMediaElement(mediaElement){if(videoElement===mediaElement)return;// Replacing the previous element\nif(videoElement){videoElement.removeEventListener('encrypted',eventHandler);if(videoElement.setMediaKeys){videoElement.setMediaKeys(null);}}videoElement=mediaElement;// Only if we are not detaching from the existing element\nif(videoElement){videoElement.addEventListener('encrypted',eventHandler);if(videoElement.setMediaKeys&&mediaKeys){videoElement.setMediaKeys(mediaKeys);}}}function setServerCertificate(serverCertificate){if(!keySystem||!mediaKeys){throw new Error('Can not set server certificate until you have selected a key system');}mediaKeys.setServerCertificate(serverCertificate).then(function(){logger.info('DRM: License server certificate successfully updated.');eventBus.trigger(events.SERVER_CERTIFICATE_UPDATED);}).catch(function(error){eventBus.trigger(events.SERVER_CERTIFICATE_UPDATED,{error:new _DashJSError2.default(_ProtectionErrors2.default.SERVER_CERTIFICATE_UPDATED_ERROR_CODE,_ProtectionErrors2.default.SERVER_CERTIFICATE_UPDATED_ERROR_MESSAGE+error.name)});});}function createKeySession(initData,protData,sessionType){if(!keySystem||!mediaKeys){throw new Error('Can not create sessions until you have selected a key system');}var session=mediaKeys.createSession(sessionType);var sessionToken=createSessionToken(session,initData,sessionType);var ks=this.getKeySystem();// Generate initial key request.\n// keyids type is used for clearkey when keys are provided directly in the protection data and then request to a license server is not needed\nvar dataType=ks.systemString===_ProtectionConstants2.default.CLEARKEY_KEYSTEM_STRING&&protData&&protData.clearkeys?'keyids':'cenc';session.generateRequest(dataType,initData).then(function(){logger.debug('DRM: Session created.  SessionID = '+sessionToken.getSessionID());eventBus.trigger(events.KEY_SESSION_CREATED,{data:sessionToken});}).catch(function(error){// TODO: Better error string\nremoveSession(sessionToken);eventBus.trigger(events.KEY_SESSION_CREATED,{data:null,error:new _DashJSError2.default(_ProtectionErrors2.default.KEY_SESSION_CREATED_ERROR_CODE,_ProtectionErrors2.default.KEY_SESSION_CREATED_ERROR_MESSAGE+'Error generating key request -- '+error.name)});});}function updateKeySession(sessionToken,message){var session=sessionToken.session;// Send our request to the key session\nif(protectionKeyController.isClearKey(keySystem)){message=message.toJWK();}session.update(message).catch(function(error){eventBus.trigger(events.KEY_ERROR,{data:new _DashJSError2.default(_ProtectionErrors2.default.MEDIA_KEYERR_CODE,'Error sending update() message! '+error.name,sessionToken)});});}function loadKeySession(sessionID,initData,sessionType){if(!keySystem||!mediaKeys){throw new Error('Can not load sessions until you have selected a key system');}// Check if session Id is not already loaded or loading\nfor(var i=0;i<sessions.length;i++){if(sessionID===sessions[i].sessionId){logger.warn('DRM: Ignoring session ID because we have already seen it!');return;}}var session=mediaKeys.createSession(sessionType);var sessionToken=createSessionToken(session,initData,sessionType,sessionID);// Load persisted session data into our newly created session object\nsession.load(sessionID).then(function(success){if(success){logger.debug('DRM: Session loaded.  SessionID = '+sessionToken.getSessionID());eventBus.trigger(events.KEY_SESSION_CREATED,{data:sessionToken});}else{removeSession(sessionToken);eventBus.trigger(events.KEY_SESSION_CREATED,{data:null,error:new _DashJSError2.default(_ProtectionErrors2.default.KEY_SESSION_CREATED_ERROR_CODE,_ProtectionErrors2.default.KEY_SESSION_CREATED_ERROR_MESSAGE+'Could not load session! Invalid Session ID ('+sessionID+')')});}}).catch(function(error){removeSession(sessionToken);eventBus.trigger(events.KEY_SESSION_CREATED,{data:null,error:new _DashJSError2.default(_ProtectionErrors2.default.KEY_SESSION_CREATED_ERROR_CODE,_ProtectionErrors2.default.KEY_SESSION_CREATED_ERROR_MESSAGE+'Could not load session ('+sessionID+')! '+error.name)});});}function removeKeySession(sessionToken){var session=sessionToken.session;session.remove().then(function(){logger.debug('DRM: Session removed.  SessionID = '+sessionToken.getSessionID());eventBus.trigger(events.KEY_SESSION_REMOVED,{data:sessionToken.getSessionID()});},function(error){eventBus.trigger(events.KEY_SESSION_REMOVED,{data:null,error:'Error removing session ('+sessionToken.getSessionID()+'). '+error.name});});}function closeKeySession(sessionToken){// Send our request to the key session\ncloseKeySessionInternal(sessionToken).catch(function(error){removeSession(sessionToken);eventBus.trigger(events.KEY_SESSION_CLOSED,{data:null,error:'Error closing session ('+sessionToken.getSessionID()+') '+error.name});});}function requestKeySystemAccessInternal(ksConfigurations,idx){if(navigator.requestMediaKeySystemAccess===undefined||typeof navigator.requestMediaKeySystemAccess!=='function'){eventBus.trigger(events.KEY_SYSTEM_ACCESS_COMPLETE,{error:'Insecure origins are not allowed'});return;}(function(i){var keySystem=ksConfigurations[i].ks;var configs=ksConfigurations[i].configs;var systemString=keySystem.systemString;// PATCH to support persistent licenses on Edge browser (see issue #2658)\nif(systemString===_ProtectionConstants2.default.PLAYREADY_KEYSTEM_STRING&&configs[0].persistentState==='required'){systemString+='.recommendation';}navigator.requestMediaKeySystemAccess(systemString,configs).then(function(mediaKeySystemAccess){// Chrome 40 does not currently implement MediaKeySystemAccess.getConfiguration()\nvar configuration=typeof mediaKeySystemAccess.getConfiguration==='function'?mediaKeySystemAccess.getConfiguration():null;var keySystemAccess=new _KeySystemAccess2.default(keySystem,configuration);keySystemAccess.mksa=mediaKeySystemAccess;eventBus.trigger(events.KEY_SYSTEM_ACCESS_COMPLETE,{data:keySystemAccess});}).catch(function(error){if(++i<ksConfigurations.length){requestKeySystemAccessInternal(ksConfigurations,i);}else{eventBus.trigger(events.KEY_SYSTEM_ACCESS_COMPLETE,{error:'Key system access denied! '+error.message});}});})(idx);}function closeKeySessionInternal(sessionToken){var session=sessionToken.session;// Remove event listeners\nsession.removeEventListener('keystatuseschange',sessionToken);session.removeEventListener('message',sessionToken);// Send our request to the key session\nreturn session.close();}// This is our main event handler for all desired HTMLMediaElement events\n// related to EME.  These events are translated into our API-independent\n// versions of the same events\nfunction createEventHandler(){return{handleEvent:function handleEvent(event){switch(event.type){case'encrypted':if(event.initData){var initData=ArrayBuffer.isView(event.initData)?event.initData.buffer:event.initData;eventBus.trigger(events.NEED_KEY,{key:new _NeedKey2.default(initData,event.initDataType)});}break;}}};}function removeSession(token){// Remove from our session list\nfor(var i=0;i<sessions.length;i++){if(sessions[i]===token){sessions.splice(i,1);break;}}}function parseKeyStatus(args){// Edge and Chrome implement different version of keystatues, param are not on same order\nvar status=void 0,keyId=void 0;if(args&&args.length>0){if(args[0]){if(typeof args[0]==='string'){status=args[0];}else{keyId=args[0];}}if(args[1]){if(typeof args[1]==='string'){status=args[1];}else{keyId=args[1];}}}return{status:status,keyId:keyId};}// Function to create our session token objects which manage the EME\n// MediaKeySession and session-specific event handler\nfunction createSessionToken(session,initData,sessionType,sessionID){var token={// Implements SessionToken\nsession:session,initData:initData,sessionId:sessionID,// This is our main event handler for all desired MediaKeySession events\n// These events are translated into our API-independent versions of the\n// same events\nhandleEvent:function handleEvent(event){switch(event.type){case'keystatuseschange':eventBus.trigger(events.KEY_STATUSES_CHANGED,{data:this});event.target.keyStatuses.forEach(function(){var keyStatus=parseKeyStatus(arguments);switch(keyStatus.status){case'expired':eventBus.trigger(events.INTERNAL_KEY_STATUS_CHANGED,{error:new _DashJSError2.default(_ProtectionErrors2.default.KEY_STATUS_CHANGED_EXPIRED_ERROR_CODE,_ProtectionErrors2.default.KEY_STATUS_CHANGED_EXPIRED_ERROR_MESSAGE)});break;default:eventBus.trigger(events.INTERNAL_KEY_STATUS_CHANGED,keyStatus);break;}});break;case'message':var message=ArrayBuffer.isView(event.message)?event.message.buffer:event.message;eventBus.trigger(events.INTERNAL_KEY_MESSAGE,{data:new _KeyMessage2.default(this,message,undefined,event.messageType)});break;}},getSessionID:function getSessionID(){return session.sessionId;},getExpirationTime:function getExpirationTime(){return session.expiration;},getKeyStatuses:function getKeyStatuses(){return session.keyStatuses;},getUsable:function getUsable(){var usable=false;session.keyStatuses.forEach(function(){var keyStatus=parseKeyStatus(arguments);if(keyStatus.status==='usable'){usable=true;}});return usable;},getSessionType:function getSessionType(){return sessionType;}};// Add all event listeners\nsession.addEventListener('keystatuseschange',token);session.addEventListener('message',token);// Register callback for session closed Promise\nsession.closed.then(function(){removeSession(token);logger.debug('DRM: Session closed.  SessionID = '+token.getSessionID());eventBus.trigger(events.KEY_SESSION_CLOSED,{data:token.getSessionID()});});// Add to our session list\nsessions.push(token);return token;}instance={getAllInitData:getAllInitData,requestKeySystemAccess:requestKeySystemAccess,getKeySystem:getKeySystem,selectKeySystem:selectKeySystem,setMediaElement:setMediaElement,setServerCertificate:setServerCertificate,createKeySession:createKeySession,updateKeySession:updateKeySession,loadKeySession:loadKeySession,removeKeySession:removeKeySession,closeKeySession:closeKeySession,stop:stop,reset:reset};setup();return instance;}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n *//**\n * Most recent EME implementation\n *\n * Implemented by Google Chrome v36+ (Windows, OSX, Linux)\n *\n * @implements ProtectionModel\n * @class\n */ProtectionModel_21Jan2015.__dashjs_factory_name='ProtectionModel_21Jan2015';exports.default=dashjs.FactoryMaker.getClassFactory(ProtectionModel_21Jan2015);/* jshint ignore:line */\n//# sourceMappingURL=ProtectionModel_21Jan2015.js.map\n","'use strict';/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2015-2016, DASH Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  1. Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  2. Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n */(function(exports){\"use strict\";/**\n     *  Exceptions from regular ASCII. CodePoints are mapped to UTF-16 codes\n     */var specialCea608CharsCodes={0x2a:0xe1,// lowercase a, acute accent\n0x5c:0xe9,// lowercase e, acute accent\n0x5e:0xed,// lowercase i, acute accent\n0x5f:0xf3,// lowercase o, acute accent\n0x60:0xfa,// lowercase u, acute accent\n0x7b:0xe7,// lowercase c with cedilla\n0x7c:0xf7,// division symbol\n0x7d:0xd1,// uppercase N tilde\n0x7e:0xf1,// lowercase n tilde\n0x7f:0x2588,// Full block\n// THIS BLOCK INCLUDES THE 16 EXTENDED (TWO-BYTE) LINE 21 CHARACTERS\n// THAT COME FROM HI BYTE=0x11 AND LOW BETWEEN 0x30 AND 0x3F\n// THIS MEANS THAT \\x50 MUST BE ADDED TO THE VALUES\n0x80:0xae,// Registered symbol (R)\n0x81:0xb0,// degree sign\n0x82:0xbd,// 1/2 symbol\n0x83:0xbf,// Inverted (open) question mark\n0x84:0x2122,// Trademark symbol (TM)\n0x85:0xa2,// Cents symbol\n0x86:0xa3,// Pounds sterling\n0x87:0x266a,// Music 8'th note\n0x88:0xe0,// lowercase a, grave accent\n0x89:0x20,// transparent space (regular)\n0x8a:0xe8,// lowercase e, grave accent\n0x8b:0xe2,// lowercase a, circumflex accent\n0x8c:0xea,// lowercase e, circumflex accent\n0x8d:0xee,// lowercase i, circumflex accent\n0x8e:0xf4,// lowercase o, circumflex accent\n0x8f:0xfb,// lowercase u, circumflex accent\n// THIS BLOCK INCLUDES THE 32 EXTENDED (TWO-BYTE) LINE 21 CHARACTERS\n// THAT COME FROM HI BYTE=0x12 AND LOW BETWEEN 0x20 AND 0x3F\n0x90:0xc1,// capital letter A with acute\n0x91:0xc9,// capital letter E with acute\n0x92:0xd3,// capital letter O with acute\n0x93:0xda,// capital letter U with acute\n0x94:0xdc,// capital letter U with diaresis\n0x95:0xfc,// lowercase letter U with diaeresis\n0x96:0x2018,// opening single quote\n0x97:0xa1,// inverted exclamation mark\n0x98:0x2a,// asterisk\n0x99:0x2019,// closing single quote\n0x9a:0x2501,// box drawings heavy horizontal\n0x9b:0xa9,// copyright sign\n0x9c:0x2120,// Service mark\n0x9d:0x2022,// (round) bullet\n0x9e:0x201c,// Left double quotation mark\n0x9f:0x201d,// Right double quotation mark\n0xa0:0xc0,// uppercase A, grave accent\n0xa1:0xc2,// uppercase A, circumflex\n0xa2:0xc7,// uppercase C with cedilla\n0xa3:0xc8,// uppercase E, grave accent\n0xa4:0xca,// uppercase E, circumflex\n0xa5:0xcb,// capital letter E with diaresis\n0xa6:0xeb,// lowercase letter e with diaresis\n0xa7:0xce,// uppercase I, circumflex\n0xa8:0xcf,// uppercase I, with diaresis\n0xa9:0xef,// lowercase i, with diaresis\n0xaa:0xd4,// uppercase O, circumflex\n0xab:0xd9,// uppercase U, grave accent\n0xac:0xf9,// lowercase u, grave accent\n0xad:0xdb,// uppercase U, circumflex\n0xae:0xab,// left-pointing double angle quotation mark\n0xaf:0xbb,// right-pointing double angle quotation mark\n// THIS BLOCK INCLUDES THE 32 EXTENDED (TWO-BYTE) LINE 21 CHARACTERS\n// THAT COME FROM HI BYTE=0x13 AND LOW BETWEEN 0x20 AND 0x3F\n0xb0:0xc3,// Uppercase A, tilde\n0xb1:0xe3,// Lowercase a, tilde\n0xb2:0xcd,// Uppercase I, acute accent\n0xb3:0xcc,// Uppercase I, grave accent\n0xb4:0xec,// Lowercase i, grave accent\n0xb5:0xd2,// Uppercase O, grave accent\n0xb6:0xf2,// Lowercase o, grave accent\n0xb7:0xd5,// Uppercase O, tilde\n0xb8:0xf5,// Lowercase o, tilde\n0xb9:0x7b,// Open curly brace\n0xba:0x7d,// Closing curly brace\n0xbb:0x5c,// Backslash\n0xbc:0x5e,// Caret\n0xbd:0x5f,// Underscore\n0xbe:0x7c,// Pipe (vertical line)\n0xbf:0x223c,// Tilde operator\n0xc0:0xc4,// Uppercase A, umlaut\n0xc1:0xe4,// Lowercase A, umlaut\n0xc2:0xd6,// Uppercase O, umlaut\n0xc3:0xf6,// Lowercase o, umlaut\n0xc4:0xdf,// Esszett (sharp S)\n0xc5:0xa5,// Yen symbol\n0xc6:0xa4,// Generic currency sign\n0xc7:0x2503,// Box drawings heavy vertical\n0xc8:0xc5,// Uppercase A, ring\n0xc9:0xe5,// Lowercase A, ring\n0xca:0xd8,// Uppercase O, stroke\n0xcb:0xf8,// Lowercase o, strok\n0xcc:0x250f,// Box drawings heavy down and right\n0xcd:0x2513,// Box drawings heavy down and left\n0xce:0x2517,// Box drawings heavy up and right\n0xcf:0x251b// Box drawings heavy up and left\n};/**\n     * Get Unicode Character from CEA-608 byte code\n     */var getCharForByte=function getCharForByte(byte){var charCode=byte;if(specialCea608CharsCodes.hasOwnProperty(byte)){charCode=specialCea608CharsCodes[byte];}return String.fromCharCode(charCode);};var NR_ROWS=15,NR_COLS=32;// Tables to look up row from PAC data\nvar rowsLowCh1={0x11:1,0x12:3,0x15:5,0x16:7,0x17:9,0x10:11,0x13:12,0x14:14};var rowsHighCh1={0x11:2,0x12:4,0x15:6,0x16:8,0x17:10,0x13:13,0x14:15};var rowsLowCh2={0x19:1,0x1A:3,0x1D:5,0x1E:7,0x1F:9,0x18:11,0x1B:12,0x1C:14};var rowsHighCh2={0x19:2,0x1A:4,0x1D:6,0x1E:8,0x1F:10,0x1B:13,0x1C:15};var backgroundColors=['white','green','blue','cyan','red','yellow','magenta','black','transparent'];/**\n     * Simple logger class to be able to write with time-stamps and filter on level.\n     */var logger={verboseFilter:{'DATA':3,'DEBUG':3,'INFO':2,'WARNING':2,'TEXT':1,'ERROR':0},time:null,verboseLevel:0,// Only write errors\nsetTime:function setTime(newTime){this.time=newTime;},log:function log(severity,msg){var minLevel=this.verboseFilter[severity];if(this.verboseLevel>=minLevel){console.log(this.time+\" [\"+severity+\"] \"+msg);}}};var numArrayToHexArray=function numArrayToHexArray(numArray){var hexArray=[];for(var j=0;j<numArray.length;j++){hexArray.push(numArray[j].toString(16));}return hexArray;};/**\n     * State of CEA-608 pen or character\n     * @constructor\n     */var PenState=function PenState(foreground,underline,italics,background,flash){this.foreground=foreground||\"white\";this.underline=underline||false;this.italics=italics||false;this.background=background||\"black\";this.flash=flash||false;};PenState.prototype={reset:function reset(){this.foreground=\"white\";this.underline=false;this.italics=false;this.background=\"black\";this.flash=false;},setStyles:function setStyles(styles){var attribs=[\"foreground\",\"underline\",\"italics\",\"background\",\"flash\"];for(var i=0;i<attribs.length;i++){var style=attribs[i];if(styles.hasOwnProperty(style)){this[style]=styles[style];}}},isDefault:function isDefault(){return this.foreground===\"white\"&&!this.underline&&!this.italics&&this.background===\"black\"&&!this.flash;},equals:function equals(other){return this.foreground===other.foreground&&this.underline===other.underline&&this.italics===other.italics&&this.background===other.background&&this.flash===other.flash;},copy:function copy(newPenState){this.foreground=newPenState.foreground;this.underline=newPenState.underline;this.italics=newPenState.italics;this.background=newPenState.background;this.flash=newPenState.flash;},toString:function toString(){return\"color=\"+this.foreground+\", underline=\"+this.underline+\", italics=\"+this.italics+\", background=\"+this.background+\", flash=\"+this.flash;}};/**\n     * Unicode character with styling and background.\n     * @constructor\n     */var StyledUnicodeChar=function StyledUnicodeChar(uchar,foreground,underline,italics,background,flash){this.uchar=uchar||' ';// unicode character\nthis.penState=new PenState(foreground,underline,italics,background,flash);};StyledUnicodeChar.prototype={reset:function reset(){this.uchar=' ';this.penState.reset();},setChar:function setChar(uchar,newPenState){this.uchar=uchar;this.penState.copy(newPenState);},setPenState:function setPenState(newPenState){this.penState.copy(newPenState);},equals:function equals(other){return this.uchar===other.uchar&&this.penState.equals(other.penState);},copy:function copy(newChar){this.uchar=newChar.uchar;this.penState.copy(newChar.penState);},isEmpty:function isEmpty(){return this.uchar===' '&&this.penState.isDefault();}};/**\n     * CEA-608 row consisting of NR_COLS instances of StyledUnicodeChar.\n     * @constructor\n     */var Row=function Row(){this.chars=[];for(var i=0;i<NR_COLS;i++){this.chars.push(new StyledUnicodeChar());}this.pos=0;this.currPenState=new PenState();};Row.prototype={equals:function equals(other){var equal=true;for(var i=0;i<NR_COLS;i++){if(!this.chars[i].equals(other.chars[i])){equal=false;break;}}return equal;},copy:function copy(other){for(var i=0;i<NR_COLS;i++){this.chars[i].copy(other.chars[i]);}},isEmpty:function isEmpty(){var empty=true;for(var i=0;i<NR_COLS;i++){if(!this.chars[i].isEmpty()){empty=false;break;}}return empty;},/**\n         *  Set the cursor to a valid column.\n         */setCursor:function setCursor(absPos){if(this.pos!==absPos){this.pos=absPos;}if(this.pos<0){logger.log(\"ERROR\",\"Negative cursor position \"+this.pos);this.pos=0;}else if(this.pos>NR_COLS){logger.log(\"ERROR\",\"Too large cursor position \"+this.pos);this.pos=NR_COLS;}},/** \n         * Move the cursor relative to current position.\n         */moveCursor:function moveCursor(relPos){var newPos=this.pos+relPos;if(relPos>1){for(var i=this.pos+1;i<newPos+1;i++){this.chars[i].setPenState(this.currPenState);}}this.setCursor(newPos);},/**\n         * Backspace, move one step back and clear character.\n         */backSpace:function backSpace(){this.moveCursor(-1);this.chars[this.pos].setChar(' ',this.currPenState);},insertChar:function insertChar(byte){if(byte>=0x90){//Extended char\nthis.backSpace();}var char=getCharForByte(byte);if(this.pos>=NR_COLS){logger.log(\"ERROR\",\"Cannot insert \"+byte.toString(16)+\" (\"+char+\") at position \"+this.pos+\". Skipping it!\");return;}this.chars[this.pos].setChar(char,this.currPenState);this.moveCursor(1);},clearFromPos:function clearFromPos(startPos){var i;for(i=startPos;i<NR_COLS;i++){this.chars[i].reset();}},clear:function clear(){this.clearFromPos(0);this.pos=0;this.currPenState.reset();},clearToEndOfRow:function clearToEndOfRow(){this.clearFromPos(this.pos);},getTextString:function getTextString(){var chars=[];var empty=true;for(var i=0;i<NR_COLS;i++){var char=this.chars[i].uchar;if(char!==\" \"){empty=false;}chars.push(char);}if(empty){return\"\";}else{return chars.join(\"\");}},setPenStyles:function setPenStyles(styles){this.currPenState.setStyles(styles);var currChar=this.chars[this.pos];currChar.setPenState(this.currPenState);}};/**\n     * Keep a CEA-608 screen of 32x15 styled characters\n     * @constructor\n    */var CaptionScreen=function CaptionScreen(){this.rows=[];for(var i=0;i<NR_ROWS;i++){this.rows.push(new Row());// Note that we use zero-based numbering (0-14)\n}this.currRow=NR_ROWS-1;this.nrRollUpRows=null;this.reset();};CaptionScreen.prototype={reset:function reset(){for(var i=0;i<NR_ROWS;i++){this.rows[i].clear();}this.currRow=NR_ROWS-1;},equals:function equals(other){var equal=true;for(var i=0;i<NR_ROWS;i++){if(!this.rows[i].equals(other.rows[i])){equal=false;break;}}return equal;},copy:function copy(other){for(var i=0;i<NR_ROWS;i++){this.rows[i].copy(other.rows[i]);}},isEmpty:function isEmpty(){var empty=true;for(var i=0;i<NR_ROWS;i++){if(!this.rows[i].isEmpty()){empty=false;break;}}return empty;},backSpace:function backSpace(){var row=this.rows[this.currRow];row.backSpace();},clearToEndOfRow:function clearToEndOfRow(){var row=this.rows[this.currRow];row.clearToEndOfRow();},/**\n         * Insert a character (without styling) in the current row.\n         */insertChar:function insertChar(char){var row=this.rows[this.currRow];row.insertChar(char);},setPen:function setPen(styles){var row=this.rows[this.currRow];row.setPenStyles(styles);},moveCursor:function moveCursor(relPos){var row=this.rows[this.currRow];row.moveCursor(relPos);},setCursor:function setCursor(absPos){logger.log(\"INFO\",\"setCursor: \"+absPos);var row=this.rows[this.currRow];row.setCursor(absPos);},setPAC:function setPAC(pacData){logger.log(\"INFO\",\"pacData = \"+JSON.stringify(pacData));var newRow=pacData.row-1;if(this.nrRollUpRows&&newRow<this.nrRollUpRows-1){newRow=this.nrRollUpRows-1;}this.currRow=newRow;var row=this.rows[this.currRow];if(pacData.indent!==null){var indent=pacData.indent;var prevPos=Math.max(indent-1,0);row.setCursor(pacData.indent);pacData.color=row.chars[prevPos].penState.foreground;}var styles={foreground:pacData.color,underline:pacData.underline,italics:pacData.italics,background:'black',flash:false};this.setPen(styles);},/**\n         * Set background/extra foreground, but first do back_space, and then insert space (backwards compatibility).\n         */setBkgData:function setBkgData(bkgData){logger.log(\"INFO\",\"bkgData = \"+JSON.stringify(bkgData));this.backSpace();this.setPen(bkgData);this.insertChar(0x20);//Space\n},setRollUpRows:function setRollUpRows(nrRows){this.nrRollUpRows=nrRows;},rollUp:function rollUp(){if(this.nrRollUpRows===null){logger.log(\"DEBUG\",\"roll_up but nrRollUpRows not set yet\");return;//Not properly setup\n}logger.log(\"TEXT\",this.getDisplayText());var topRowIndex=this.currRow+1-this.nrRollUpRows;var topRow=this.rows.splice(topRowIndex,1)[0];topRow.clear();this.rows.splice(this.currRow,0,topRow);logger.log(\"INFO\",\"Rolling up\");//logger.log(\"TEXT\", this.get_display_text())\n},/**\n        * Get all non-empty rows with as unicode text. \n        */getDisplayText:function getDisplayText(asOneRow){asOneRow=asOneRow||false;var displayText=[];var text=\"\";var rowNr=-1;for(var i=0;i<NR_ROWS;i++){var rowText=this.rows[i].getTextString();if(rowText){rowNr=i+1;if(asOneRow){displayText.push(\"Row \"+rowNr+': \"'+rowText+'\"');}else{displayText.push(rowText.trim());}}}if(displayText.length>0){if(asOneRow){text=\"[\"+displayText.join(\" | \")+\"]\";}else{text=displayText.join(\"\\n\");}}return text;},getTextAndFormat:function getTextAndFormat(){return this.rows;}};/**\n     * Handle a CEA-608 channel and send decoded data to outputFilter\n     * @constructor\n     * @param {Number} channelNumber (1 or 2)\n     * @param {CueHandler} outputFilter Output from channel1 newCue(startTime, endTime, captionScreen)\n    */var Cea608Channel=function Cea608Channel(channelNumber,outputFilter){this.chNr=channelNumber;this.outputFilter=outputFilter;this.mode=null;this.verbose=0;this.displayedMemory=new CaptionScreen();this.nonDisplayedMemory=new CaptionScreen();this.lastOutputScreen=new CaptionScreen();this.currRollUpRow=this.displayedMemory.rows[NR_ROWS-1];this.writeScreen=this.displayedMemory;this.mode=null;this.cueStartTime=null;// Keeps track of where a cue started.\n};Cea608Channel.prototype={modes:[\"MODE_ROLL-UP\",\"MODE_POP-ON\",\"MODE_PAINT-ON\",\"MODE_TEXT\"],reset:function reset(){this.mode=null;this.displayedMemory.reset();this.nonDisplayedMemory.reset();this.lastOutputScreen.reset();this.currRollUpRow=this.displayedMemory.rows[NR_ROWS-1];this.writeScreen=this.displayedMemory;this.mode=null;this.cueStartTime=null;this.lastCueEndTime=null;},getHandler:function getHandler(){return this.outputFilter;},setHandler:function setHandler(newHandler){this.outputFilter=newHandler;},setPAC:function setPAC(pacData){this.writeScreen.setPAC(pacData);},setBkgData:function setBkgData(bkgData){this.writeScreen.setBkgData(bkgData);},setMode:function setMode(newMode){if(newMode===this.mode){return;}this.mode=newMode;logger.log(\"INFO\",\"MODE=\"+newMode);if(this.mode==\"MODE_POP-ON\"){this.writeScreen=this.nonDisplayedMemory;}else{this.writeScreen=this.displayedMemory;this.writeScreen.reset();}if(this.mode!==\"MODE_ROLL-UP\"){this.displayedMemory.nrRollUpRows=null;this.nonDisplayedMemory.nrRollUpRows=null;}this.mode=newMode;},insertChars:function insertChars(chars){for(var i=0;i<chars.length;i++){this.writeScreen.insertChar(chars[i]);}var screen=this.writeScreen===this.displayedMemory?\"DISP\":\"NON_DISP\";logger.log(\"INFO\",screen+\": \"+this.writeScreen.getDisplayText(true));if(this.mode===\"MODE_PAINT-ON\"||this.mode===\"MODE_ROLL-UP\"){logger.log(\"TEXT\",\"DISPLAYED: \"+this.displayedMemory.getDisplayText(true));this.outputDataUpdate();}},cc_RCL:function cc_RCL(){// Resume Caption Loading (switch mode to Pop On)\nlogger.log(\"INFO\",\"RCL - Resume Caption Loading\");this.setMode(\"MODE_POP-ON\");},cc_BS:function cc_BS(){// BackSpace\nlogger.log(\"INFO\",\"BS - BackSpace\");if(this.mode===\"MODE_TEXT\"){return;}this.writeScreen.backSpace();if(this.writeScreen===this.displayedMemory){this.outputDataUpdate();}},cc_AOF:function cc_AOF(){// Reserved (formerly Alarm Off)\nreturn;},cc_AON:function cc_AON(){// Reserved (formerly Alarm On)\nreturn;},cc_DER:function cc_DER(){// Delete to End of Row\nlogger.log(\"INFO\",\"DER- Delete to End of Row\");this.writeScreen.clearToEndOfRow();this.outputDataUpdate();},cc_RU:function cc_RU(nrRows){//Roll-Up Captions-2,3,or 4 Rows\nlogger.log(\"INFO\",\"RU(\"+nrRows+\") - Roll Up\");this.writeScreen=this.displayedMemory;this.setMode(\"MODE_ROLL-UP\");this.writeScreen.setRollUpRows(nrRows);},cc_FON:function cc_FON(){//Flash On\nlogger.log(\"INFO\",\"FON - Flash On\");this.writeScreen.setPen({flash:true});},cc_RDC:function cc_RDC(){// Resume Direct Captioning (switch mode to PaintOn)\nlogger.log(\"INFO\",\"RDC - Resume Direct Captioning\");this.setMode(\"MODE_PAINT-ON\");},cc_TR:function cc_TR(){// Text Restart in text mode (not supported, however)\nlogger.log(\"INFO\",\"TR\");this.setMode(\"MODE_TEXT\");},cc_RTD:function cc_RTD(){// Resume Text Display in Text mode (not supported, however)\nlogger.log(\"INFO\",\"RTD\");this.setMode(\"MODE_TEXT\");},cc_EDM:function cc_EDM(){// Erase Displayed Memory\nlogger.log(\"INFO\",\"EDM - Erase Displayed Memory\");this.displayedMemory.reset();this.outputDataUpdate();},cc_CR:function cc_CR(){// Carriage Return\nlogger.log(\"CR - Carriage Return\");this.writeScreen.rollUp();this.outputDataUpdate();},cc_ENM:function cc_ENM(){//Erase Non-Displayed Memory\nlogger.log(\"INFO\",\"ENM - Erase Non-displayed Memory\");this.nonDisplayedMemory.reset();},cc_EOC:function cc_EOC(){//End of Caption (Flip Memories)\nlogger.log(\"INFO\",\"EOC - End Of Caption\");if(this.mode===\"MODE_POP-ON\"){var tmp=this.displayedMemory;this.displayedMemory=this.nonDisplayedMemory;this.nonDisplayedMemory=tmp;this.writeScreen=this.nonDisplayedMemory;logger.log(\"TEXT\",\"DISP: \"+this.displayedMemory.getDisplayText());}this.outputDataUpdate();},cc_TO:function cc_TO(nrCols){// Tab Offset 1,2, or 3 columns\nlogger.log(\"INFO\",\"TO(\"+nrCols+\") - Tab Offset\");this.writeScreen.moveCursor(nrCols);},cc_MIDROW:function cc_MIDROW(secondByte){// Parse MIDROW command\nvar styles={flash:false};styles.underline=secondByte%2===1;styles.italics=secondByte>=0x2e;if(!styles.italics){var colorIndex=Math.floor(secondByte/2)-0x10;var colors=[\"white\",\"green\",\"blue\",\"cyan\",\"red\",\"yellow\",\"magenta\"];styles.foreground=colors[colorIndex];}else{styles.foreground=\"white\";}logger.log(\"INFO\",\"MIDROW: \"+JSON.stringify(styles));this.writeScreen.setPen(styles);},outputDataUpdate:function outputDataUpdate(){var t=logger.time;if(t===null){return;}if(this.outputFilter){if(this.outputFilter.updateData){this.outputFilter.updateData(t,this.displayedMemory);}if(this.cueStartTime===null&&!this.displayedMemory.isEmpty()){// Start of a new cue\nthis.cueStartTime=t;}else{if(!this.displayedMemory.equals(this.lastOutputScreen)){if(this.outputFilter.newCue){this.outputFilter.newCue(this.cueStartTime,t,this.lastOutputScreen);}this.cueStartTime=this.displayedMemory.isEmpty()?null:t;}}this.lastOutputScreen.copy(this.displayedMemory);}},cueSplitAtTime:function cueSplitAtTime(t){if(this.outputFilter){if(!this.displayedMemory.isEmpty()){if(this.outputFilter.newCue){this.outputFilter.newCue(this.cueStartTime,t,this.displayedMemory);}this.cueStartTime=t;}}}};/**\n     * Parse CEA-608 data and send decoded data to out1 and out2.\n     * @constructor\n     * @param {Number} field  CEA-608 field (1 or 2)\n     * @param {CueHandler} out1 Output from channel1 newCue(startTime, endTime, captionScreen)\n     * @param {CueHandler} out2 Output from channel2 newCue(startTime, endTime, captionScreen)\n     */var Cea608Parser=function Cea608Parser(field,out1,out2){this.field=field||1;this.outputs=[out1,out2];this.channels=[new Cea608Channel(1,out1),new Cea608Channel(2,out2)];this.currChNr=-1;// Will be 1 or 2\nthis.lastCmdA=null;// First byte of last command\nthis.lastCmdB=null;// Second byte of last command\nthis.bufferedData=[];this.startTime=null;this.lastTime=null;this.dataCounters={'padding':0,'char':0,'cmd':0,'other':0};};Cea608Parser.prototype={getHandler:function getHandler(index){return this.channels[index].getHandler();},setHandler:function setHandler(index,newHandler){this.channels[index].setHandler(newHandler);},/**\n         * Add data for time t in forms of list of bytes (unsigned ints). The bytes are treated as pairs.\n         */addData:function addData(t,byteList){var cmdFound,a,b,charsFound=false;this.lastTime=t;logger.setTime(t);for(var i=0;i<byteList.length;i+=2){a=byteList[i]&0x7f;b=byteList[i+1]&0x7f;if(a>=0x10&&a<=0x1f&&a===this.lastCmdA&&b===this.lastCmdB){this.lastCmdA=null;this.lastCmdB=null;logger.log(\"DEBUG\",\"Repeated command (\"+numArrayToHexArray([a,b])+\") is dropped\");continue;// Repeated commands are dropped (once)\n}if(a===0&&b===0){this.dataCounters.padding+=2;continue;}else{logger.log(\"DATA\",\"[\"+numArrayToHexArray([byteList[i],byteList[i+1]])+\"] -> (\"+numArrayToHexArray([a,b])+\")\");}cmdFound=this.parseCmd(a,b);if(!cmdFound){cmdFound=this.parseMidrow(a,b);}if(!cmdFound){cmdFound=this.parsePAC(a,b);}if(!cmdFound){cmdFound=this.parseBackgroundAttributes(a,b);}if(!cmdFound){charsFound=this.parseChars(a,b);if(charsFound){if(this.currChNr&&this.currChNr>=0){var channel=this.channels[this.currChNr-1];channel.insertChars(charsFound);}else{logger.log(\"WARNING\",\"No channel found yet. TEXT-MODE?\");}}}if(cmdFound){this.dataCounters.cmd+=2;}else if(charsFound){this.dataCounters.char+=2;}else{this.dataCounters.other+=2;logger.log(\"WARNING\",\"Couldn't parse cleaned data \"+numArrayToHexArray([a,b])+\" orig: \"+numArrayToHexArray([byteList[i],byteList[i+1]]));}}},/**\n         * Parse Command.\n         * @returns {Boolean} Tells if a command was found\n         */parseCmd:function parseCmd(a,b){var chNr=null;var cond1=(a===0x14||a===0x15||a===0x1C||a===0x1D)&&0x20<=b&&b<=0x2F;var cond2=(a===0x17||a===0x1F)&&0x21<=b&&b<=0x23;if(!(cond1||cond2)){return false;}if(a===0x14||a===0x15||a===0x17){chNr=1;}else{chNr=2;// (a === 0x1C || a === 0x1D || a=== 0x1f)\n}var channel=this.channels[chNr-1];if(a===0x14||a===0x15||a===0x1C||a===0x1D){if(b===0x20){channel.cc_RCL();}else if(b===0x21){channel.cc_BS();}else if(b===0x22){channel.cc_AOF();}else if(b===0x23){channel.cc_AON();}else if(b===0x24){channel.cc_DER();}else if(b===0x25){channel.cc_RU(2);}else if(b===0x26){channel.cc_RU(3);}else if(b===0x27){channel.cc_RU(4);}else if(b===0x28){channel.cc_FON();}else if(b===0x29){channel.cc_RDC();}else if(b===0x2A){channel.cc_TR();}else if(b===0x2B){channel.cc_RTD();}else if(b===0x2C){channel.cc_EDM();}else if(b===0x2D){channel.cc_CR();}else if(b===0x2E){channel.cc_ENM();}else if(b===0x2F){channel.cc_EOC();}}else{//a == 0x17 || a == 0x1F\nchannel.cc_TO(b-0x20);}this.lastCmdA=a;this.lastCmdB=b;this.currChNr=chNr;return true;},/**\n         * Parse midrow styling command\n         * @returns {Boolean}\n         */parseMidrow:function parseMidrow(a,b){var chNr=null;if((a===0x11||a===0x19)&&0x20<=b&&b<=0x2f){if(a===0x11){chNr=1;}else{chNr=2;}if(chNr!==this.currChNr){logger.log(\"ERROR\",\"Mismatch channel in midrow parsing\");return false;}var channel=this.channels[chNr-1];// cea608 spec says midrow codes should inject a space\nchannel.insertChars([0x20]);channel.cc_MIDROW(b);logger.log(\"DEBUG\",\"MIDROW (\"+numArrayToHexArray([a,b])+\")\");this.lastCmdA=a;this.lastCmdB=b;return true;}return false;},/**\n         * Parse Preable Access Codes (Table 53).\n         * @returns {Boolean} Tells if PAC found\n         */parsePAC:function parsePAC(a,b){var chNr=null;var row=null;var case1=(0x11<=a&&a<=0x17||0x19<=a&&a<=0x1F)&&0x40<=b&&b<=0x7F;var case2=(a===0x10||a===0x18)&&0x40<=b&&b<=0x5F;if(!(case1||case2)){return false;}chNr=a<=0x17?1:2;if(0x40<=b&&b<=0x5F){row=chNr===1?rowsLowCh1[a]:rowsLowCh2[a];}else{// 0x60 <= b <= 0x7F\nrow=chNr===1?rowsHighCh1[a]:rowsHighCh2[a];}var pacData=this.interpretPAC(row,b);var channel=this.channels[chNr-1];channel.setPAC(pacData);this.lastCmdA=a;this.lastCmdB=b;this.currChNr=chNr;return true;},/**\n         * Interpret the second byte of the pac, and return the information.\n         * @returns {Object} pacData with style parameters.\n         */interpretPAC:function interpretPAC(row,byte){var pacIndex=byte;var pacData={color:null,italics:false,indent:null,underline:false,row:row};if(byte>0x5F){pacIndex=byte-0x60;}else{pacIndex=byte-0x40;}pacData.underline=(pacIndex&1)===1;if(pacIndex<=0xd){pacData.color=['white','green','blue','cyan','red','yellow','magenta','white'][Math.floor(pacIndex/2)];}else if(pacIndex<=0xf){pacData.italics=true;pacData.color='white';}else{pacData.indent=Math.floor((pacIndex-0x10)/2)*4;}return pacData;// Note that row has zero offset. The spec uses 1.\n},/**\n         * Parse characters.\n         * @returns An array with 1 to 2 codes corresponding to chars, if found. null otherwise.\n         */parseChars:function parseChars(a,b){var channelNr=null,charCodes=null,charCode1=null,charCode2=null;if(a>=0x19){channelNr=2;charCode1=a-8;}else{channelNr=1;charCode1=a;}if(0x11<=charCode1&&charCode1<=0x13){// Special character\nvar oneCode=b;if(charCode1===0x11){oneCode=b+0x50;}else if(charCode1===0x12){oneCode=b+0x70;}else{oneCode=b+0x90;}logger.log(\"INFO\",\"Special char '\"+getCharForByte(oneCode)+\"' in channel \"+channelNr);charCodes=[oneCode];this.lastCmdA=a;this.lastCmdB=b;}else if(0x20<=a&&a<=0x7f){charCodes=b===0?[a]:[a,b];this.lastCmdA=null;this.lastCmdB=null;}if(charCodes){var hexCodes=numArrayToHexArray(charCodes);logger.log(\"DEBUG\",\"Char codes =  \"+hexCodes.join(\",\"));}return charCodes;},/**\n        * Parse extended background attributes as well as new foreground color black.\n        * @returns{Boolean} Tells if background attributes are found\n        */parseBackgroundAttributes:function parseBackgroundAttributes(a,b){var bkgData,index,chNr,channel;var case1=(a===0x10||a===0x18)&&0x20<=b&&b<=0x2f;var case2=(a===0x17||a===0x1f)&&0x2d<=b&&b<=0x2f;if(!(case1||case2)){return false;}bkgData={};if(a===0x10||a===0x18){index=Math.floor((b-0x20)/2);bkgData.background=backgroundColors[index];if(b%2===1){bkgData.background=bkgData.background+\"_semi\";}}else if(b===0x2d){bkgData.background=\"transparent\";}else{bkgData.foreground=\"black\";if(b===0x2f){bkgData.underline=true;}}chNr=a<0x18?1:2;channel=this.channels[chNr-1];channel.setBkgData(bkgData);this.lastCmdA=a;this.lastCmdB=b;return true;},/**\n         * Reset state of parser and its channels.\n         */reset:function reset(){for(var i=0;i<this.channels.length;i++){if(this.channels[i]){this.channels[i].reset();}}this.lastCmdA=null;this.lastCmdB=null;},/**\n         * Trigger the generation of a cue, and the start of a new one if displayScreens are not empty.\n         */cueSplitAtTime:function cueSplitAtTime(t){for(var i=0;i<this.channels.length;i++){if(this.channels[i]){this.channels[i].cueSplitAtTime(t);}}}};/**\n     * Find ranges corresponding to SEA CEA-608 NALUS in sizeprepended NALU array.\n     * @param {raw} dataView of binary data\n     * @param {startPos} start position in raw\n     * @param {size} total size of data in raw to consider\n     * @returns \n     */var findCea608Nalus=function findCea608Nalus(raw,startPos,size){var nalSize=0,cursor=startPos,nalType=0,cea608NaluRanges=[],// Check SEI data according to ANSI-SCTE 128\nisCEA608SEI=function isCEA608SEI(payloadType,payloadSize,raw,pos){if(payloadType!==4||payloadSize<8){return null;}var countryCode=raw.getUint8(pos);var providerCode=raw.getUint16(pos+1);var userIdentifier=raw.getUint32(pos+3);var userDataTypeCode=raw.getUint8(pos+7);return countryCode==0xB5&&providerCode==0x31&&userIdentifier==0x47413934&&userDataTypeCode==0x3;};while(cursor<startPos+size){nalSize=raw.getUint32(cursor);nalType=raw.getUint8(cursor+4)&0x1F;//console.log(time + \"  NAL \" + nalType);\nif(nalType===6){// SEI NAL Unit. The NAL header is the first byte\n//console.log(\"SEI NALU of size \" + nalSize + \" at time \" + time);\nvar pos=cursor+5;var payloadType=-1;while(pos<cursor+4+nalSize-1){// The last byte should be rbsp_trailing_bits\npayloadType=0;var b=0xFF;while(b===0xFF){b=raw.getUint8(pos);payloadType+=b;pos++;}var payloadSize=0;b=0xFF;while(b===0xFF){b=raw.getUint8(pos);payloadSize+=b;pos++;}if(isCEA608SEI(payloadType,payloadSize,raw,pos)){//console.log(\"CEA608 SEI \" + time + \" \" + payloadSize);\ncea608NaluRanges.push([pos,payloadSize]);}pos+=payloadSize;}}cursor+=nalSize+4;}return cea608NaluRanges;};var extractCea608DataFromRange=function extractCea608DataFromRange(raw,cea608Range){var pos=cea608Range[0];var fieldData=[[],[]];pos+=8;// Skip the identifier up to userDataTypeCode\nvar ccCount=raw.getUint8(pos)&0x1f;pos+=2;// Advance 1 and skip reserved byte\nfor(var i=0;i<ccCount;i++){var byte=raw.getUint8(pos);var ccValid=byte&0x4;var ccType=byte&0x3;pos++;var ccData1=raw.getUint8(pos);// Keep parity bit\npos++;var ccData2=raw.getUint8(pos);// Keep parity bit\npos++;if(ccValid&&(ccData1&0x7f)+(ccData2&0x7f)!==0){//Check validity and non-empty data\nif(ccType===0){fieldData[0].push(ccData1);fieldData[0].push(ccData2);}else if(ccType===1){fieldData[1].push(ccData1);fieldData[1].push(ccData2);}}}return fieldData;};exports.logger=logger;exports.PenState=PenState;exports.CaptionScreen=CaptionScreen;exports.Cea608Parser=Cea608Parser;exports.findCea608Nalus=findCea608Nalus;exports.extractCea608DataFromRange=extractCea608DataFromRange;})(typeof exports==='undefined'?undefined.cea608parser={}:exports);\n//# sourceMappingURL=cea608-parser.js.map\n","// Copyright Joyent, Inc. and other Node contributors.\n//\n// Permission is hereby granted, free of charge, to any person obtaining a\n// copy of this software and associated documentation files (the\n// \"Software\"), to deal in the Software without restriction, including\n// without limitation the rights to use, copy, modify, merge, publish,\n// distribute, sublicense, and/or sell copies of the Software, and to permit\n// persons to whom the Software is furnished to do so, subject to the\n// following conditions:\n//\n// The above copyright notice and this permission notice shall be included\n// in all copies or substantial portions of the Software.\n//\n// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS\n// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF\n// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN\n// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,\n// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR\n// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE\n// USE OR OTHER DEALINGS IN THE SOFTWARE.\n\n// A bit simpler than readable streams.\n// Implement an async ._write(chunk, encoding, cb), and it'll handle all\n// the drain event emission and buffering.\n\n'use strict';\n\n/*<replacement>*/\n\nvar pna = require('process-nextick-args');\n/*</replacement>*/\n\nmodule.exports = Writable;\n\n/* <replacement> */\nfunction WriteReq(chunk, encoding, cb) {\n  this.chunk = chunk;\n  this.encoding = encoding;\n  this.callback = cb;\n  this.next = null;\n}\n\n// It seems a linked list but it is not\n// there will be only 2 of these for each stream\nfunction CorkedRequest(state) {\n  var _this = this;\n\n  this.next = null;\n  this.entry = null;\n  this.finish = function () {\n    onCorkedFinish(_this, state);\n  };\n}\n/* </replacement> */\n\n/*<replacement>*/\nvar asyncWrite = !process.browser && ['v0.10', 'v0.9.'].indexOf(process.version.slice(0, 5)) > -1 ? setImmediate : pna.nextTick;\n/*</replacement>*/\n\n/*<replacement>*/\nvar Duplex;\n/*</replacement>*/\n\nWritable.WritableState = WritableState;\n\n/*<replacement>*/\nvar util = Object.create(require('core-util-is'));\nutil.inherits = require('inherits');\n/*</replacement>*/\n\n/*<replacement>*/\nvar internalUtil = {\n  deprecate: require('util-deprecate')\n};\n/*</replacement>*/\n\n/*<replacement>*/\nvar Stream = require('./internal/streams/stream');\n/*</replacement>*/\n\n/*<replacement>*/\n\nvar Buffer = require('safe-buffer').Buffer;\nvar OurUint8Array = global.Uint8Array || function () {};\nfunction _uint8ArrayToBuffer(chunk) {\n  return Buffer.from(chunk);\n}\nfunction _isUint8Array(obj) {\n  return Buffer.isBuffer(obj) || obj instanceof OurUint8Array;\n}\n\n/*</replacement>*/\n\nvar destroyImpl = require('./internal/streams/destroy');\n\nutil.inherits(Writable, Stream);\n\nfunction nop() {}\n\nfunction WritableState(options, stream) {\n  Duplex = Duplex || require('./_stream_duplex');\n\n  options = options || {};\n\n  // Duplex streams are both readable and writable, but share\n  // the same options object.\n  // However, some cases require setting options to different\n  // values for the readable and the writable sides of the duplex stream.\n  // These options can be provided separately as readableXXX and writableXXX.\n  var isDuplex = stream instanceof Duplex;\n\n  // object stream flag to indicate whether or not this stream\n  // contains buffers or objects.\n  this.objectMode = !!options.objectMode;\n\n  if (isDuplex) this.objectMode = this.objectMode || !!options.writableObjectMode;\n\n  // the point at which write() starts returning false\n  // Note: 0 is a valid value, means that we always return false if\n  // the entire buffer is not flushed immediately on write()\n  var hwm = options.highWaterMark;\n  var writableHwm = options.writableHighWaterMark;\n  var defaultHwm = this.objectMode ? 16 : 16 * 1024;\n\n  if (hwm || hwm === 0) this.highWaterMark = hwm;else if (isDuplex && (writableHwm || writableHwm === 0)) this.highWaterMark = writableHwm;else this.highWaterMark = defaultHwm;\n\n  // cast to ints.\n  this.highWaterMark = Math.floor(this.highWaterMark);\n\n  // if _final has been called\n  this.finalCalled = false;\n\n  // drain event flag.\n  this.needDrain = false;\n  // at the start of calling end()\n  this.ending = false;\n  // when end() has been called, and returned\n  this.ended = false;\n  // when 'finish' is emitted\n  this.finished = false;\n\n  // has it been destroyed\n  this.destroyed = false;\n\n  // should we decode strings into buffers before passing to _write?\n  // this is here so that some node-core streams can optimize string\n  // handling at a lower level.\n  var noDecode = options.decodeStrings === false;\n  this.decodeStrings = !noDecode;\n\n  // Crypto is kind of old and crusty.  Historically, its default string\n  // encoding is 'binary' so we have to make this configurable.\n  // Everything else in the universe uses 'utf8', though.\n  this.defaultEncoding = options.defaultEncoding || 'utf8';\n\n  // not an actual buffer we keep track of, but a measurement\n  // of how much we're waiting to get pushed to some underlying\n  // socket or file.\n  this.length = 0;\n\n  // a flag to see when we're in the middle of a write.\n  this.writing = false;\n\n  // when true all writes will be buffered until .uncork() call\n  this.corked = 0;\n\n  // a flag to be able to tell if the onwrite cb is called immediately,\n  // or on a later tick.  We set this to true at first, because any\n  // actions that shouldn't happen until \"later\" should generally also\n  // not happen before the first write call.\n  this.sync = true;\n\n  // a flag to know if we're processing previously buffered items, which\n  // may call the _write() callback in the same tick, so that we don't\n  // end up in an overlapped onwrite situation.\n  this.bufferProcessing = false;\n\n  // the callback that's passed to _write(chunk,cb)\n  this.onwrite = function (er) {\n    onwrite(stream, er);\n  };\n\n  // the callback that the user supplies to write(chunk,encoding,cb)\n  this.writecb = null;\n\n  // the amount that is being written when _write is called.\n  this.writelen = 0;\n\n  this.bufferedRequest = null;\n  this.lastBufferedRequest = null;\n\n  // number of pending user-supplied write callbacks\n  // this must be 0 before 'finish' can be emitted\n  this.pendingcb = 0;\n\n  // emit prefinish if the only thing we're waiting for is _write cbs\n  // This is relevant for synchronous Transform streams\n  this.prefinished = false;\n\n  // True if the error was already emitted and should not be thrown again\n  this.errorEmitted = false;\n\n  // count buffered requests\n  this.bufferedRequestCount = 0;\n\n  // allocate the first CorkedRequest, there is always\n  // one allocated and free to use, and we maintain at most two\n  this.corkedRequestsFree = new CorkedRequest(this);\n}\n\nWritableState.prototype.getBuffer = function getBuffer() {\n  var current = this.bufferedRequest;\n  var out = [];\n  while (current) {\n    out.push(current);\n    current = current.next;\n  }\n  return out;\n};\n\n(function () {\n  try {\n    Object.defineProperty(WritableState.prototype, 'buffer', {\n      get: internalUtil.deprecate(function () {\n        return this.getBuffer();\n      }, '_writableState.buffer is deprecated. Use _writableState.getBuffer ' + 'instead.', 'DEP0003')\n    });\n  } catch (_) {}\n})();\n\n// Test _writableState for inheritance to account for Duplex streams,\n// whose prototype chain only points to Readable.\nvar realHasInstance;\nif (typeof Symbol === 'function' && Symbol.hasInstance && typeof Function.prototype[Symbol.hasInstance] === 'function') {\n  realHasInstance = Function.prototype[Symbol.hasInstance];\n  Object.defineProperty(Writable, Symbol.hasInstance, {\n    value: function (object) {\n      if (realHasInstance.call(this, object)) return true;\n      if (this !== Writable) return false;\n\n      return object && object._writableState instanceof WritableState;\n    }\n  });\n} else {\n  realHasInstance = function (object) {\n    return object instanceof this;\n  };\n}\n\nfunction Writable(options) {\n  Duplex = Duplex || require('./_stream_duplex');\n\n  // Writable ctor is applied to Duplexes, too.\n  // `realHasInstance` is necessary because using plain `instanceof`\n  // would return false, as no `_writableState` property is attached.\n\n  // Trying to use the custom `instanceof` for Writable here will also break the\n  // Node.js LazyTransform implementation, which has a non-trivial getter for\n  // `_writableState` that would lead to infinite recursion.\n  if (!realHasInstance.call(Writable, this) && !(this instanceof Duplex)) {\n    return new Writable(options);\n  }\n\n  this._writableState = new WritableState(options, this);\n\n  // legacy.\n  this.writable = true;\n\n  if (options) {\n    if (typeof options.write === 'function') this._write = options.write;\n\n    if (typeof options.writev === 'function') this._writev = options.writev;\n\n    if (typeof options.destroy === 'function') this._destroy = options.destroy;\n\n    if (typeof options.final === 'function') this._final = options.final;\n  }\n\n  Stream.call(this);\n}\n\n// Otherwise people can pipe Writable streams, which is just wrong.\nWritable.prototype.pipe = function () {\n  this.emit('error', new Error('Cannot pipe, not readable'));\n};\n\nfunction writeAfterEnd(stream, cb) {\n  var er = new Error('write after end');\n  // TODO: defer error events consistently everywhere, not just the cb\n  stream.emit('error', er);\n  pna.nextTick(cb, er);\n}\n\n// Checks that a user-supplied chunk is valid, especially for the particular\n// mode the stream is in. Currently this means that `null` is never accepted\n// and undefined/non-string values are only allowed in object mode.\nfunction validChunk(stream, state, chunk, cb) {\n  var valid = true;\n  var er = false;\n\n  if (chunk === null) {\n    er = new TypeError('May not write null values to stream');\n  } else if (typeof chunk !== 'string' && chunk !== undefined && !state.objectMode) {\n    er = new TypeError('Invalid non-string/buffer chunk');\n  }\n  if (er) {\n    stream.emit('error', er);\n    pna.nextTick(cb, er);\n    valid = false;\n  }\n  return valid;\n}\n\nWritable.prototype.write = function (chunk, encoding, cb) {\n  var state = this._writableState;\n  var ret = false;\n  var isBuf = !state.objectMode && _isUint8Array(chunk);\n\n  if (isBuf && !Buffer.isBuffer(chunk)) {\n    chunk = _uint8ArrayToBuffer(chunk);\n  }\n\n  if (typeof encoding === 'function') {\n    cb = encoding;\n    encoding = null;\n  }\n\n  if (isBuf) encoding = 'buffer';else if (!encoding) encoding = state.defaultEncoding;\n\n  if (typeof cb !== 'function') cb = nop;\n\n  if (state.ended) writeAfterEnd(this, cb);else if (isBuf || validChunk(this, state, chunk, cb)) {\n    state.pendingcb++;\n    ret = writeOrBuffer(this, state, isBuf, chunk, encoding, cb);\n  }\n\n  return ret;\n};\n\nWritable.prototype.cork = function () {\n  var state = this._writableState;\n\n  state.corked++;\n};\n\nWritable.prototype.uncork = function () {\n  var state = this._writableState;\n\n  if (state.corked) {\n    state.corked--;\n\n    if (!state.writing && !state.corked && !state.finished && !state.bufferProcessing && state.bufferedRequest) clearBuffer(this, state);\n  }\n};\n\nWritable.prototype.setDefaultEncoding = function setDefaultEncoding(encoding) {\n  // node::ParseEncoding() requires lower case.\n  if (typeof encoding === 'string') encoding = encoding.toLowerCase();\n  if (!(['hex', 'utf8', 'utf-8', 'ascii', 'binary', 'base64', 'ucs2', 'ucs-2', 'utf16le', 'utf-16le', 'raw'].indexOf((encoding + '').toLowerCase()) > -1)) throw new TypeError('Unknown encoding: ' + encoding);\n  this._writableState.defaultEncoding = encoding;\n  return this;\n};\n\nfunction decodeChunk(state, chunk, encoding) {\n  if (!state.objectMode && state.decodeStrings !== false && typeof chunk === 'string') {\n    chunk = Buffer.from(chunk, encoding);\n  }\n  return chunk;\n}\n\nObject.defineProperty(Writable.prototype, 'writableHighWaterMark', {\n  // making it explicit this property is not enumerable\n  // because otherwise some prototype manipulation in\n  // userland will fail\n  enumerable: false,\n  get: function () {\n    return this._writableState.highWaterMark;\n  }\n});\n\n// if we're already writing something, then just put this\n// in the queue, and wait our turn.  Otherwise, call _write\n// If we return false, then we need a drain event, so set that flag.\nfunction writeOrBuffer(stream, state, isBuf, chunk, encoding, cb) {\n  if (!isBuf) {\n    var newChunk = decodeChunk(state, chunk, encoding);\n    if (chunk !== newChunk) {\n      isBuf = true;\n      encoding = 'buffer';\n      chunk = newChunk;\n    }\n  }\n  var len = state.objectMode ? 1 : chunk.length;\n\n  state.length += len;\n\n  var ret = state.length < state.highWaterMark;\n  // we must ensure that previous needDrain will not be reset to false.\n  if (!ret) state.needDrain = true;\n\n  if (state.writing || state.corked) {\n    var last = state.lastBufferedRequest;\n    state.lastBufferedRequest = {\n      chunk: chunk,\n      encoding: encoding,\n      isBuf: isBuf,\n      callback: cb,\n      next: null\n    };\n    if (last) {\n      last.next = state.lastBufferedRequest;\n    } else {\n      state.bufferedRequest = state.lastBufferedRequest;\n    }\n    state.bufferedRequestCount += 1;\n  } else {\n    doWrite(stream, state, false, len, chunk, encoding, cb);\n  }\n\n  return ret;\n}\n\nfunction doWrite(stream, state, writev, len, chunk, encoding, cb) {\n  state.writelen = len;\n  state.writecb = cb;\n  state.writing = true;\n  state.sync = true;\n  if (writev) stream._writev(chunk, state.onwrite);else stream._write(chunk, encoding, state.onwrite);\n  state.sync = false;\n}\n\nfunction onwriteError(stream, state, sync, er, cb) {\n  --state.pendingcb;\n\n  if (sync) {\n    // defer the callback if we are being called synchronously\n    // to avoid piling up things on the stack\n    pna.nextTick(cb, er);\n    // this can emit finish, and it will always happen\n    // after error\n    pna.nextTick(finishMaybe, stream, state);\n    stream._writableState.errorEmitted = true;\n    stream.emit('error', er);\n  } else {\n    // the caller expect this to happen before if\n    // it is async\n    cb(er);\n    stream._writableState.errorEmitted = true;\n    stream.emit('error', er);\n    // this can emit finish, but finish must\n    // always follow error\n    finishMaybe(stream, state);\n  }\n}\n\nfunction onwriteStateUpdate(state) {\n  state.writing = false;\n  state.writecb = null;\n  state.length -= state.writelen;\n  state.writelen = 0;\n}\n\nfunction onwrite(stream, er) {\n  var state = stream._writableState;\n  var sync = state.sync;\n  var cb = state.writecb;\n\n  onwriteStateUpdate(state);\n\n  if (er) onwriteError(stream, state, sync, er, cb);else {\n    // Check if we're actually ready to finish, but don't emit yet\n    var finished = needFinish(state);\n\n    if (!finished && !state.corked && !state.bufferProcessing && state.bufferedRequest) {\n      clearBuffer(stream, state);\n    }\n\n    if (sync) {\n      /*<replacement>*/\n      asyncWrite(afterWrite, stream, state, finished, cb);\n      /*</replacement>*/\n    } else {\n      afterWrite(stream, state, finished, cb);\n    }\n  }\n}\n\nfunction afterWrite(stream, state, finished, cb) {\n  if (!finished) onwriteDrain(stream, state);\n  state.pendingcb--;\n  cb();\n  finishMaybe(stream, state);\n}\n\n// Must force callback to be called on nextTick, so that we don't\n// emit 'drain' before the write() consumer gets the 'false' return\n// value, and has a chance to attach a 'drain' listener.\nfunction onwriteDrain(stream, state) {\n  if (state.length === 0 && state.needDrain) {\n    state.needDrain = false;\n    stream.emit('drain');\n  }\n}\n\n// if there's something in the buffer waiting, then process it\nfunction clearBuffer(stream, state) {\n  state.bufferProcessing = true;\n  var entry = state.bufferedRequest;\n\n  if (stream._writev && entry && entry.next) {\n    // Fast case, write everything using _writev()\n    var l = state.bufferedRequestCount;\n    var buffer = new Array(l);\n    var holder = state.corkedRequestsFree;\n    holder.entry = entry;\n\n    var count = 0;\n    var allBuffers = true;\n    while (entry) {\n      buffer[count] = entry;\n      if (!entry.isBuf) allBuffers = false;\n      entry = entry.next;\n      count += 1;\n    }\n    buffer.allBuffers = allBuffers;\n\n    doWrite(stream, state, true, state.length, buffer, '', holder.finish);\n\n    // doWrite is almost always async, defer these to save a bit of time\n    // as the hot path ends with doWrite\n    state.pendingcb++;\n    state.lastBufferedRequest = null;\n    if (holder.next) {\n      state.corkedRequestsFree = holder.next;\n      holder.next = null;\n    } else {\n      state.corkedRequestsFree = new CorkedRequest(state);\n    }\n    state.bufferedRequestCount = 0;\n  } else {\n    // Slow case, write chunks one-by-one\n    while (entry) {\n      var chunk = entry.chunk;\n      var encoding = entry.encoding;\n      var cb = entry.callback;\n      var len = state.objectMode ? 1 : chunk.length;\n\n      doWrite(stream, state, false, len, chunk, encoding, cb);\n      entry = entry.next;\n      state.bufferedRequestCount--;\n      // if we didn't call the onwrite immediately, then\n      // it means that we need to wait until it does.\n      // also, that means that the chunk and cb are currently\n      // being processed, so move the buffer counter past them.\n      if (state.writing) {\n        break;\n      }\n    }\n\n    if (entry === null) state.lastBufferedRequest = null;\n  }\n\n  state.bufferedRequest = entry;\n  state.bufferProcessing = false;\n}\n\nWritable.prototype._write = function (chunk, encoding, cb) {\n  cb(new Error('_write() is not implemented'));\n};\n\nWritable.prototype._writev = null;\n\nWritable.prototype.end = function (chunk, encoding, cb) {\n  var state = this._writableState;\n\n  if (typeof chunk === 'function') {\n    cb = chunk;\n    chunk = null;\n    encoding = null;\n  } else if (typeof encoding === 'function') {\n    cb = encoding;\n    encoding = null;\n  }\n\n  if (chunk !== null && chunk !== undefined) this.write(chunk, encoding);\n\n  // .end() fully uncorks\n  if (state.corked) {\n    state.corked = 1;\n    this.uncork();\n  }\n\n  // ignore unnecessary end() calls.\n  if (!state.ending && !state.finished) endWritable(this, state, cb);\n};\n\nfunction needFinish(state) {\n  return state.ending && state.length === 0 && state.bufferedRequest === null && !state.finished && !state.writing;\n}\nfunction callFinal(stream, state) {\n  stream._final(function (err) {\n    state.pendingcb--;\n    if (err) {\n      stream.emit('error', err);\n    }\n    state.prefinished = true;\n    stream.emit('prefinish');\n    finishMaybe(stream, state);\n  });\n}\nfunction prefinish(stream, state) {\n  if (!state.prefinished && !state.finalCalled) {\n    if (typeof stream._final === 'function') {\n      state.pendingcb++;\n      state.finalCalled = true;\n      pna.nextTick(callFinal, stream, state);\n    } else {\n      state.prefinished = true;\n      stream.emit('prefinish');\n    }\n  }\n}\n\nfunction finishMaybe(stream, state) {\n  var need = needFinish(state);\n  if (need) {\n    prefinish(stream, state);\n    if (state.pendingcb === 0) {\n      state.finished = true;\n      stream.emit('finish');\n    }\n  }\n  return need;\n}\n\nfunction endWritable(stream, state, cb) {\n  state.ending = true;\n  finishMaybe(stream, state);\n  if (cb) {\n    if (state.finished) pna.nextTick(cb);else stream.once('finish', cb);\n  }\n  state.ended = true;\n  stream.writable = false;\n}\n\nfunction onCorkedFinish(corkReq, state, err) {\n  var entry = corkReq.entry;\n  corkReq.entry = null;\n  while (entry) {\n    var cb = entry.callback;\n    state.pendingcb--;\n    cb(err);\n    entry = entry.next;\n  }\n  if (state.corkedRequestsFree) {\n    state.corkedRequestsFree.next = corkReq;\n  } else {\n    state.corkedRequestsFree = corkReq;\n  }\n}\n\nObject.defineProperty(Writable.prototype, 'destroyed', {\n  get: function () {\n    if (this._writableState === undefined) {\n      return false;\n    }\n    return this._writableState.destroyed;\n  },\n  set: function (value) {\n    // we ignore the value if the stream\n    // has not been initialized yet\n    if (!this._writableState) {\n      return;\n    }\n\n    // backward compatibility, the user is explicitly\n    // managing destroyed\n    this._writableState.destroyed = value;\n  }\n});\n\nWritable.prototype.destroy = destroyImpl.destroy;\nWritable.prototype._undestroy = destroyImpl.undestroy;\nWritable.prototype._destroy = function (err, cb) {\n  this.end();\n  cb(err);\n};","var global = require('../internals/global');\nvar DOMIterables = require('../internals/dom-iterables');\nvar ArrayIteratorMethods = require('../modules/es.array.iterator');\nvar createNonEnumerableProperty = require('../internals/create-non-enumerable-property');\nvar wellKnownSymbol = require('../internals/well-known-symbol');\n\nvar ITERATOR = wellKnownSymbol('iterator');\nvar TO_STRING_TAG = wellKnownSymbol('toStringTag');\nvar ArrayValues = ArrayIteratorMethods.values;\n\nfor (var COLLECTION_NAME in DOMIterables) {\n  var Collection = global[COLLECTION_NAME];\n  var CollectionPrototype = Collection && Collection.prototype;\n  if (CollectionPrototype) {\n    // some Chrome versions have non-configurable methods on DOMTokenList\n    if (CollectionPrototype[ITERATOR] !== ArrayValues) try {\n      createNonEnumerableProperty(CollectionPrototype, ITERATOR, ArrayValues);\n    } catch (error) {\n      CollectionPrototype[ITERATOR] = ArrayValues;\n    }\n    if (!CollectionPrototype[TO_STRING_TAG]) {\n      createNonEnumerableProperty(CollectionPrototype, TO_STRING_TAG, COLLECTION_NAME);\n    }\n    if (DOMIterables[COLLECTION_NAME]) for (var METHOD_NAME in ArrayIteratorMethods) {\n      // some Chrome versions have non-configurable methods on DOMTokenList\n      if (CollectionPrototype[METHOD_NAME] !== ArrayIteratorMethods[METHOD_NAME]) try {\n        createNonEnumerableProperty(CollectionPrototype, METHOD_NAME, ArrayIteratorMethods[METHOD_NAME]);\n      } catch (error) {\n        CollectionPrototype[METHOD_NAME] = ArrayIteratorMethods[METHOD_NAME];\n      }\n    }\n  }\n}\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _EventBus=require('../../../core/EventBus');var _EventBus2=_interopRequireDefault(_EventBus);var _Events=require('../../../core/events/Events');var _Events2=_interopRequireDefault(_Events);var _FactoryMaker=require('../../../core/FactoryMaker');var _FactoryMaker2=_interopRequireDefault(_FactoryMaker);var _Debug=require('../../../core/Debug');var _Debug2=_interopRequireDefault(_Debug);var _SwitchRequest=require('../SwitchRequest');var _SwitchRequest2=_interopRequireDefault(_SwitchRequest);var _Constants=require('../../constants/Constants');var _Constants2=_interopRequireDefault(_Constants);var _MetricsConstants=require('../../constants/MetricsConstants');var _MetricsConstants2=_interopRequireDefault(_MetricsConstants);function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}function InsufficientBufferRule(config){config=config||{};var INSUFFICIENT_BUFFER_SAFETY_FACTOR=0.5;var context=this.context;var eventBus=(0,_EventBus2.default)(context).getInstance();var dashMetrics=config.dashMetrics;var instance=void 0,logger=void 0,bufferStateDict=void 0;function setup(){logger=(0,_Debug2.default)(context).getInstance().getLogger(instance);resetInitialSettings();eventBus.on(_Events2.default.PLAYBACK_SEEKING,onPlaybackSeeking,instance);}function checkConfig(){if(!dashMetrics||!dashMetrics.hasOwnProperty('getCurrentBufferLevel')||!dashMetrics.hasOwnProperty('getCurrentBufferState')){throw new Error(_Constants2.default.MISSING_CONFIG_ERROR);}}/*\n     * InsufficientBufferRule does not kick in before the first BUFFER_LOADED event happens. This is reset at every seek.\n     *\n     * If a BUFFER_EMPTY event happens, then InsufficientBufferRule returns switchRequest.quality=0 until BUFFER_LOADED happens.\n     *\n     * Otherwise InsufficientBufferRule gives a maximum bitrate depending on throughput and bufferLevel such that\n     * a whole fragment can be downloaded before the buffer runs out, subject to a conservative safety factor of 0.5.\n     * If the bufferLevel is low, then InsufficientBufferRule avoids rebuffering risk.\n     * If the bufferLevel is high, then InsufficientBufferRule give a high MaxIndex allowing other rules to take over.\n     */function getMaxIndex(rulesContext){var switchRequest=(0,_SwitchRequest2.default)(context).create();if(!rulesContext||!rulesContext.hasOwnProperty('getMediaType')){return switchRequest;}checkConfig();var mediaType=rulesContext.getMediaType();var currentBufferState=dashMetrics.getCurrentBufferState(mediaType);var representationInfo=rulesContext.getRepresentationInfo();var fragmentDuration=representationInfo.fragmentDuration;// Don't ask for a bitrate change if there is not info about buffer state or if fragmentDuration is not defined\nif(!currentBufferState||!wasFirstBufferLoadedEventTriggered(mediaType,currentBufferState)||!fragmentDuration){return switchRequest;}if(currentBufferState.state===_MetricsConstants2.default.BUFFER_EMPTY){logger.debug('['+mediaType+'] Switch to index 0; buffer is empty.');switchRequest.quality=0;switchRequest.reason='InsufficientBufferRule: Buffer is empty';}else{var mediaInfo=rulesContext.getMediaInfo();var abrController=rulesContext.getAbrController();var throughputHistory=abrController.getThroughputHistory();var bufferLevel=dashMetrics.getCurrentBufferLevel(mediaType);var throughput=throughputHistory.getAverageThroughput(mediaType);var latency=throughputHistory.getAverageLatency(mediaType);var bitrate=throughput*(bufferLevel/fragmentDuration)*INSUFFICIENT_BUFFER_SAFETY_FACTOR;switchRequest.quality=abrController.getQualityForBitrate(mediaInfo,bitrate,latency);switchRequest.reason='InsufficientBufferRule: being conservative to avoid immediate rebuffering';}return switchRequest;}function wasFirstBufferLoadedEventTriggered(mediaType,currentBufferState){bufferStateDict[mediaType]=bufferStateDict[mediaType]||{};var wasTriggered=false;if(bufferStateDict[mediaType].firstBufferLoadedEvent){wasTriggered=true;}else if(currentBufferState&&currentBufferState.state===_MetricsConstants2.default.BUFFER_LOADED){bufferStateDict[mediaType].firstBufferLoadedEvent=true;wasTriggered=true;}return wasTriggered;}function resetInitialSettings(){bufferStateDict={};}function onPlaybackSeeking(){resetInitialSettings();}function reset(){resetInitialSettings();eventBus.off(_Events2.default.PLAYBACK_SEEKING,onPlaybackSeeking,instance);}instance={getMaxIndex:getMaxIndex,reset:reset};setup();return instance;}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n */InsufficientBufferRule.__dashjs_factory_name='InsufficientBufferRule';exports.default=_FactoryMaker2.default.getClassFactory(InsufficientBufferRule);\n//# sourceMappingURL=InsufficientBufferRule.js.map\n","// Source: http://jsfiddle.net/vWx8V/\n// http://stackoverflow.com/questions/5603195/full-list-of-javascript-keycodes\n\n/**\n * Conenience method returns corresponding value for given keyName or keyCode.\n *\n * @param {Mixed} keyCode {Number} or keyName {String}\n * @return {Mixed}\n * @api public\n */\n\nfunction keyCode(searchInput) {\n  // Keyboard Events\n  if (searchInput && 'object' === typeof searchInput) {\n    var hasKeyCode = searchInput.which || searchInput.keyCode || searchInput.charCode\n    if (hasKeyCode) searchInput = hasKeyCode\n  }\n\n  // Numbers\n  if ('number' === typeof searchInput) return names[searchInput]\n\n  // Everything else (cast to string)\n  var search = String(searchInput)\n\n  // check codes\n  var foundNamedKey = codes[search.toLowerCase()]\n  if (foundNamedKey) return foundNamedKey\n\n  // check aliases\n  var foundNamedKey = aliases[search.toLowerCase()]\n  if (foundNamedKey) return foundNamedKey\n\n  // weird character?\n  if (search.length === 1) return search.charCodeAt(0)\n\n  return undefined\n}\n\n/**\n * Compares a keyboard event with a given keyCode or keyName.\n *\n * @param {Event} event Keyboard event that should be tested\n * @param {Mixed} keyCode {Number} or keyName {String}\n * @return {Boolean}\n * @api public\n */\nkeyCode.isEventKey = function isEventKey(event, nameOrCode) {\n  if (event && 'object' === typeof event) {\n    var keyCode = event.which || event.keyCode || event.charCode\n    if (keyCode === null || keyCode === undefined) { return false; }\n    if (typeof nameOrCode === 'string') {\n      // check codes\n      var foundNamedKey = codes[nameOrCode.toLowerCase()]\n      if (foundNamedKey) { return foundNamedKey === keyCode; }\n    \n      // check aliases\n      var foundNamedKey = aliases[nameOrCode.toLowerCase()]\n      if (foundNamedKey) { return foundNamedKey === keyCode; }\n    } else if (typeof nameOrCode === 'number') {\n      return nameOrCode === keyCode;\n    }\n    return false;\n  }\n}\n\nexports = module.exports = keyCode;\n\n/**\n * Get by name\n *\n *   exports.code['enter'] // => 13\n */\n\nvar codes = exports.code = exports.codes = {\n  'backspace': 8,\n  'tab': 9,\n  'enter': 13,\n  'shift': 16,\n  'ctrl': 17,\n  'alt': 18,\n  'pause/break': 19,\n  'caps lock': 20,\n  'esc': 27,\n  'space': 32,\n  'page up': 33,\n  'page down': 34,\n  'end': 35,\n  'home': 36,\n  'left': 37,\n  'up': 38,\n  'right': 39,\n  'down': 40,\n  'insert': 45,\n  'delete': 46,\n  'command': 91,\n  'left command': 91,\n  'right command': 93,\n  'numpad *': 106,\n  'numpad +': 107,\n  'numpad -': 109,\n  'numpad .': 110,\n  'numpad /': 111,\n  'num lock': 144,\n  'scroll lock': 145,\n  'my computer': 182,\n  'my calculator': 183,\n  ';': 186,\n  '=': 187,\n  ',': 188,\n  '-': 189,\n  '.': 190,\n  '/': 191,\n  '`': 192,\n  '[': 219,\n  '\\\\': 220,\n  ']': 221,\n  \"'\": 222\n}\n\n// Helper aliases\n\nvar aliases = exports.aliases = {\n  'windows': 91,\n  '⇧': 16,\n  '⌥': 18,\n  '⌃': 17,\n  '⌘': 91,\n  'ctl': 17,\n  'control': 17,\n  'option': 18,\n  'pause': 19,\n  'break': 19,\n  'caps': 20,\n  'return': 13,\n  'escape': 27,\n  'spc': 32,\n  'spacebar': 32,\n  'pgup': 33,\n  'pgdn': 34,\n  'ins': 45,\n  'del': 46,\n  'cmd': 91\n}\n\n/*!\n * Programatically add the following\n */\n\n// lower case chars\nfor (i = 97; i < 123; i++) codes[String.fromCharCode(i)] = i - 32\n\n// numbers\nfor (var i = 48; i < 58; i++) codes[i - 48] = i\n\n// function keys\nfor (i = 1; i < 13; i++) codes['f'+i] = i + 111\n\n// numpad keys\nfor (i = 0; i < 10; i++) codes['numpad '+i] = i + 96\n\n/**\n * Get by code\n *\n *   exports.name[13] // => 'Enter'\n */\n\nvar names = exports.names = exports.title = {} // title for backward compat\n\n// Create reverse mapping\nfor (i in codes) names[codes[i]] = i\n\n// Add aliases\nfor (var alias in aliases) {\n  codes[alias] = aliases[alias]\n}\n","var internalObjectKeys = require('../internals/object-keys-internal');\nvar enumBugKeys = require('../internals/enum-bug-keys');\n\n// `Object.keys` method\n// https://tc39.github.io/ecma262/#sec-object.keys\nmodule.exports = Object.keys || function keys(O) {\n  return internalObjectKeys(O, enumBugKeys);\n};\n","// .dirname, .basename, and .extname methods are extracted from Node.js v8.11.1,\n// backported and transplited with Babel, with backwards-compat fixes\n\n// Copyright Joyent, Inc. and other Node contributors.\n//\n// Permission is hereby granted, free of charge, to any person obtaining a\n// copy of this software and associated documentation files (the\n// \"Software\"), to deal in the Software without restriction, including\n// without limitation the rights to use, copy, modify, merge, publish,\n// distribute, sublicense, and/or sell copies of the Software, and to permit\n// persons to whom the Software is furnished to do so, subject to the\n// following conditions:\n//\n// The above copyright notice and this permission notice shall be included\n// in all copies or substantial portions of the Software.\n//\n// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS\n// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF\n// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN\n// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,\n// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR\n// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE\n// USE OR OTHER DEALINGS IN THE SOFTWARE.\n\n// resolves . and .. elements in a path array with directory names there\n// must be no slashes, empty elements, or device names (c:\\) in the array\n// (so also no leading and trailing slashes - it does not distinguish\n// relative and absolute paths)\nfunction normalizeArray(parts, allowAboveRoot) {\n  // if the path tries to go above the root, `up` ends up > 0\n  var up = 0;\n  for (var i = parts.length - 1; i >= 0; i--) {\n    var last = parts[i];\n    if (last === '.') {\n      parts.splice(i, 1);\n    } else if (last === '..') {\n      parts.splice(i, 1);\n      up++;\n    } else if (up) {\n      parts.splice(i, 1);\n      up--;\n    }\n  }\n\n  // if the path is allowed to go above the root, restore leading ..s\n  if (allowAboveRoot) {\n    for (; up--; up) {\n      parts.unshift('..');\n    }\n  }\n\n  return parts;\n}\n\n// path.resolve([from ...], to)\n// posix version\nexports.resolve = function() {\n  var resolvedPath = '',\n      resolvedAbsolute = false;\n\n  for (var i = arguments.length - 1; i >= -1 && !resolvedAbsolute; i--) {\n    var path = (i >= 0) ? arguments[i] : process.cwd();\n\n    // Skip empty and invalid entries\n    if (typeof path !== 'string') {\n      throw new TypeError('Arguments to path.resolve must be strings');\n    } else if (!path) {\n      continue;\n    }\n\n    resolvedPath = path + '/' + resolvedPath;\n    resolvedAbsolute = path.charAt(0) === '/';\n  }\n\n  // At this point the path should be resolved to a full absolute path, but\n  // handle relative paths to be safe (might happen when process.cwd() fails)\n\n  // Normalize the path\n  resolvedPath = normalizeArray(filter(resolvedPath.split('/'), function(p) {\n    return !!p;\n  }), !resolvedAbsolute).join('/');\n\n  return ((resolvedAbsolute ? '/' : '') + resolvedPath) || '.';\n};\n\n// path.normalize(path)\n// posix version\nexports.normalize = function(path) {\n  var isAbsolute = exports.isAbsolute(path),\n      trailingSlash = substr(path, -1) === '/';\n\n  // Normalize the path\n  path = normalizeArray(filter(path.split('/'), function(p) {\n    return !!p;\n  }), !isAbsolute).join('/');\n\n  if (!path && !isAbsolute) {\n    path = '.';\n  }\n  if (path && trailingSlash) {\n    path += '/';\n  }\n\n  return (isAbsolute ? '/' : '') + path;\n};\n\n// posix version\nexports.isAbsolute = function(path) {\n  return path.charAt(0) === '/';\n};\n\n// posix version\nexports.join = function() {\n  var paths = Array.prototype.slice.call(arguments, 0);\n  return exports.normalize(filter(paths, function(p, index) {\n    if (typeof p !== 'string') {\n      throw new TypeError('Arguments to path.join must be strings');\n    }\n    return p;\n  }).join('/'));\n};\n\n\n// path.relative(from, to)\n// posix version\nexports.relative = function(from, to) {\n  from = exports.resolve(from).substr(1);\n  to = exports.resolve(to).substr(1);\n\n  function trim(arr) {\n    var start = 0;\n    for (; start < arr.length; start++) {\n      if (arr[start] !== '') break;\n    }\n\n    var end = arr.length - 1;\n    for (; end >= 0; end--) {\n      if (arr[end] !== '') break;\n    }\n\n    if (start > end) return [];\n    return arr.slice(start, end - start + 1);\n  }\n\n  var fromParts = trim(from.split('/'));\n  var toParts = trim(to.split('/'));\n\n  var length = Math.min(fromParts.length, toParts.length);\n  var samePartsLength = length;\n  for (var i = 0; i < length; i++) {\n    if (fromParts[i] !== toParts[i]) {\n      samePartsLength = i;\n      break;\n    }\n  }\n\n  var outputParts = [];\n  for (var i = samePartsLength; i < fromParts.length; i++) {\n    outputParts.push('..');\n  }\n\n  outputParts = outputParts.concat(toParts.slice(samePartsLength));\n\n  return outputParts.join('/');\n};\n\nexports.sep = '/';\nexports.delimiter = ':';\n\nexports.dirname = function (path) {\n  if (typeof path !== 'string') path = path + '';\n  if (path.length === 0) return '.';\n  var code = path.charCodeAt(0);\n  var hasRoot = code === 47 /*/*/;\n  var end = -1;\n  var matchedSlash = true;\n  for (var i = path.length - 1; i >= 1; --i) {\n    code = path.charCodeAt(i);\n    if (code === 47 /*/*/) {\n        if (!matchedSlash) {\n          end = i;\n          break;\n        }\n      } else {\n      // We saw the first non-path separator\n      matchedSlash = false;\n    }\n  }\n\n  if (end === -1) return hasRoot ? '/' : '.';\n  if (hasRoot && end === 1) {\n    // return '//';\n    // Backwards-compat fix:\n    return '/';\n  }\n  return path.slice(0, end);\n};\n\nfunction basename(path) {\n  if (typeof path !== 'string') path = path + '';\n\n  var start = 0;\n  var end = -1;\n  var matchedSlash = true;\n  var i;\n\n  for (i = path.length - 1; i >= 0; --i) {\n    if (path.charCodeAt(i) === 47 /*/*/) {\n        // If we reached a path separator that was not part of a set of path\n        // separators at the end of the string, stop now\n        if (!matchedSlash) {\n          start = i + 1;\n          break;\n        }\n      } else if (end === -1) {\n      // We saw the first non-path separator, mark this as the end of our\n      // path component\n      matchedSlash = false;\n      end = i + 1;\n    }\n  }\n\n  if (end === -1) return '';\n  return path.slice(start, end);\n}\n\n// Uses a mixed approach for backwards-compatibility, as ext behavior changed\n// in new Node.js versions, so only basename() above is backported here\nexports.basename = function (path, ext) {\n  var f = basename(path);\n  if (ext && f.substr(-1 * ext.length) === ext) {\n    f = f.substr(0, f.length - ext.length);\n  }\n  return f;\n};\n\nexports.extname = function (path) {\n  if (typeof path !== 'string') path = path + '';\n  var startDot = -1;\n  var startPart = 0;\n  var end = -1;\n  var matchedSlash = true;\n  // Track the state of characters (if any) we see before our first dot and\n  // after any path separator we find\n  var preDotState = 0;\n  for (var i = path.length - 1; i >= 0; --i) {\n    var code = path.charCodeAt(i);\n    if (code === 47 /*/*/) {\n        // If we reached a path separator that was not part of a set of path\n        // separators at the end of the string, stop now\n        if (!matchedSlash) {\n          startPart = i + 1;\n          break;\n        }\n        continue;\n      }\n    if (end === -1) {\n      // We saw the first non-path separator, mark this as the end of our\n      // extension\n      matchedSlash = false;\n      end = i + 1;\n    }\n    if (code === 46 /*.*/) {\n        // If this is our first dot, mark it as the start of our extension\n        if (startDot === -1)\n          startDot = i;\n        else if (preDotState !== 1)\n          preDotState = 1;\n    } else if (startDot !== -1) {\n      // We saw a non-dot and non-path separator before our dot, so we should\n      // have a good chance at having a non-empty extension\n      preDotState = -1;\n    }\n  }\n\n  if (startDot === -1 || end === -1 ||\n      // We saw a non-dot character immediately before the dot\n      preDotState === 0 ||\n      // The (right-most) trimmed path component is exactly '..'\n      preDotState === 1 && startDot === end - 1 && startDot === startPart + 1) {\n    return '';\n  }\n  return path.slice(startDot, end);\n};\n\nfunction filter (xs, f) {\n    if (xs.filter) return xs.filter(f);\n    var res = [];\n    for (var i = 0; i < xs.length; i++) {\n        if (f(xs[i], i, xs)) res.push(xs[i]);\n    }\n    return res;\n}\n\n// String.prototype.substr - negative index don't work in IE8\nvar substr = 'ab'.substr(-1) === 'b'\n    ? function (str, start, len) { return str.substr(start, len) }\n    : function (str, start, len) {\n        if (start < 0) start = str.length + start;\n        return str.substr(start, len);\n    }\n;\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});function _classCallCheck(instance,Constructor){if(!(instance instanceof Constructor)){throw new TypeError(\"Cannot call a class as a function\");}}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n *//**\n * @classdesc a PlayList from ISO23009-1 Annex D, this Object holds reference to the playback session information\n * @ignore\n */var PlayList=/**\n     * @class\n     */function PlayList(){_classCallCheck(this,PlayList);/**\n         * Timestamp of the user action that starts the playback stream...\n         * @public\n         */this.start=null;/**\n         * Presentation time at which playout was requested by the user...\n         * @public\n         */this.mstart=null;/**\n         * Type of user action which triggered playout\n         * - New playout request (e.g. initial playout or seeking)\n         * - Resume from pause\n         * - Other user request (e.g. user-requested quality change)\n         * - Start of a metrics collection stream (hence earlier entries in the play list not collected)\n         * @public\n         */this.starttype=null;/**\n         * List of streams of continuous rendering of decoded samples.\n         * @public\n         */this.trace=[];};/* Public Static Constants */PlayList.INITIAL_PLAYOUT_START_REASON='initial_playout';PlayList.SEEK_START_REASON='seek';PlayList.RESUME_FROM_PAUSE_START_REASON='resume';PlayList.METRICS_COLLECTION_START_REASON='metrics_collection_start';/**\n * @classdesc a PlayList.Trace from ISO23009-1 Annex D\n * @ignore\n */var PlayListTrace=/**\n     * @class\n     */function PlayListTrace(){_classCallCheck(this,PlayListTrace);/**\n         * The value of the Representation@id of the Representation from which the samples were taken.\n         * @type {string}\n         * @public\n         */this.representationid=null;/**\n         * If not present, this metrics concerns the Representation as a whole.\n         * If present, subreplevel indicates the greatest value of any\n         * Subrepresentation@level being rendered.\n         * @type {number}\n         * @public\n         */this.subreplevel=null;/**\n         * The time at which the first sample was rendered\n         * @type {number}\n         * @public\n         */this.start=null;/**\n         * The presentation time of the first sample rendered.\n         * @type {number}\n         * @public\n         */this.mstart=null;/**\n         * The duration of the continuously presented samples (which is the same in real time and media time). \"Continuously presented\" means that the media clock continued to advance at the playout speed throughout the interval. NOTE: the spec does not call out the units, but all other durations etc are in ms, and we use ms too.\n         * @type {number}\n         * @public\n         */this.duration=null;/**\n         * The playback speed relative to normal playback speed (i.e.normal forward playback speed is 1.0).\n         * @type {number}\n         * @public\n         */this.playbackspeed=null;/**\n         * The reason why continuous presentation of this Representation was stopped.\n         * representation switch\n         * rebuffering\n         * user request\n         * end of Period\n         * end of Stream\n         * end of content\n         * end of a metrics collection period\n         *\n         * @type {string}\n         * @public\n         */this.stopreason=null;};PlayListTrace.REPRESENTATION_SWITCH_STOP_REASON='representation_switch';PlayListTrace.REBUFFERING_REASON='rebuffering';PlayListTrace.USER_REQUEST_STOP_REASON='user_request';PlayListTrace.END_OF_PERIOD_STOP_REASON='end_of_period';PlayListTrace.END_OF_CONTENT_STOP_REASON='end_of_content';PlayListTrace.METRICS_COLLECTION_STOP_REASON='metrics_collection_end';PlayListTrace.FAILURE_STOP_REASON='failure';exports.PlayList=PlayList;exports.PlayListTrace=PlayListTrace;\n//# sourceMappingURL=PlayList.js.map\n","var NAMESPACE = require(\"./conventions\").NAMESPACE;\n\n//[4]   \tNameStartChar\t   ::=   \t\":\" | [A-Z] | \"_\" | [a-z] | [#xC0-#xD6] | [#xD8-#xF6] | [#xF8-#x2FF] | [#x370-#x37D] | [#x37F-#x1FFF] | [#x200C-#x200D] | [#x2070-#x218F] | [#x2C00-#x2FEF] | [#x3001-#xD7FF] | [#xF900-#xFDCF] | [#xFDF0-#xFFFD] | [#x10000-#xEFFFF]\n//[4a]   \tNameChar\t   ::=   \tNameStartChar | \"-\" | \".\" | [0-9] | #xB7 | [#x0300-#x036F] | [#x203F-#x2040]\n//[5]   \tName\t   ::=   \tNameStartChar (NameChar)*\nvar nameStartChar = /[A-Z_a-z\\xC0-\\xD6\\xD8-\\xF6\\u00F8-\\u02FF\\u0370-\\u037D\\u037F-\\u1FFF\\u200C-\\u200D\\u2070-\\u218F\\u2C00-\\u2FEF\\u3001-\\uD7FF\\uF900-\\uFDCF\\uFDF0-\\uFFFD]///\\u10000-\\uEFFFF\nvar nameChar = new RegExp(\"[\\\\-\\\\.0-9\"+nameStartChar.source.slice(1,-1)+\"\\\\u00B7\\\\u0300-\\\\u036F\\\\u203F-\\\\u2040]\");\nvar tagNamePattern = new RegExp('^'+nameStartChar.source+nameChar.source+'*(?:\\:'+nameStartChar.source+nameChar.source+'*)?$');\n//var tagNamePattern = /^[a-zA-Z_][\\w\\-\\.]*(?:\\:[a-zA-Z_][\\w\\-\\.]*)?$/\n//var handlers = 'resolveEntity,getExternalSubset,characters,endDocument,endElement,endPrefixMapping,ignorableWhitespace,processingInstruction,setDocumentLocator,skippedEntity,startDocument,startElement,startPrefixMapping,notationDecl,unparsedEntityDecl,error,fatalError,warning,attributeDecl,elementDecl,externalEntityDecl,internalEntityDecl,comment,endCDATA,endDTD,endEntity,startCDATA,startDTD,startEntity'.split(',')\n\n//S_TAG,\tS_ATTR,\tS_EQ,\tS_ATTR_NOQUOT_VALUE\n//S_ATTR_SPACE,\tS_ATTR_END,\tS_TAG_SPACE, S_TAG_CLOSE\nvar S_TAG = 0;//tag name offerring\nvar S_ATTR = 1;//attr name offerring \nvar S_ATTR_SPACE=2;//attr name end and space offer\nvar S_EQ = 3;//=space?\nvar S_ATTR_NOQUOT_VALUE = 4;//attr value(no quot value only)\nvar S_ATTR_END = 5;//attr value end and no space(quot end)\nvar S_TAG_SPACE = 6;//(attr value end || tag end ) && (space offer)\nvar S_TAG_CLOSE = 7;//closed el<el />\n\n/**\n * Creates an error that will not be caught by XMLReader aka the SAX parser.\n *\n * @param {string} message\n * @param {any?} locator Optional, can provide details about the location in the source\n * @constructor\n */\nfunction ParseError(message, locator) {\n\tthis.message = message\n\tthis.locator = locator\n\tif(Error.captureStackTrace) Error.captureStackTrace(this, ParseError);\n}\nParseError.prototype = new Error();\nParseError.prototype.name = ParseError.name\n\nfunction XMLReader(){\n\t\n}\n\nXMLReader.prototype = {\n\tparse:function(source,defaultNSMap,entityMap){\n\t\tvar domBuilder = this.domBuilder;\n\t\tdomBuilder.startDocument();\n\t\t_copy(defaultNSMap ,defaultNSMap = {})\n\t\tparse(source,defaultNSMap,entityMap,\n\t\t\t\tdomBuilder,this.errorHandler);\n\t\tdomBuilder.endDocument();\n\t}\n}\nfunction parse(source,defaultNSMapCopy,entityMap,domBuilder,errorHandler){\n\tfunction fixedFromCharCode(code) {\n\t\t// String.prototype.fromCharCode does not supports\n\t\t// > 2 bytes unicode chars directly\n\t\tif (code > 0xffff) {\n\t\t\tcode -= 0x10000;\n\t\t\tvar surrogate1 = 0xd800 + (code >> 10)\n\t\t\t\t, surrogate2 = 0xdc00 + (code & 0x3ff);\n\n\t\t\treturn String.fromCharCode(surrogate1, surrogate2);\n\t\t} else {\n\t\t\treturn String.fromCharCode(code);\n\t\t}\n\t}\n\tfunction entityReplacer(a){\n\t\tvar k = a.slice(1,-1);\n\t\tif(k in entityMap){\n\t\t\treturn entityMap[k]; \n\t\t}else if(k.charAt(0) === '#'){\n\t\t\treturn fixedFromCharCode(parseInt(k.substr(1).replace('x','0x')))\n\t\t}else{\n\t\t\terrorHandler.error('entity not found:'+a);\n\t\t\treturn a;\n\t\t}\n\t}\n\tfunction appendText(end){//has some bugs\n\t\tif(end>start){\n\t\t\tvar xt = source.substring(start,end).replace(/&#?\\w+;/g,entityReplacer);\n\t\t\tlocator&&position(start);\n\t\t\tdomBuilder.characters(xt,0,end-start);\n\t\t\tstart = end\n\t\t}\n\t}\n\tfunction position(p,m){\n\t\twhile(p>=lineEnd && (m = linePattern.exec(source))){\n\t\t\tlineStart = m.index;\n\t\t\tlineEnd = lineStart + m[0].length;\n\t\t\tlocator.lineNumber++;\n\t\t\t//console.log('line++:',locator,startPos,endPos)\n\t\t}\n\t\tlocator.columnNumber = p-lineStart+1;\n\t}\n\tvar lineStart = 0;\n\tvar lineEnd = 0;\n\tvar linePattern = /.*(?:\\r\\n?|\\n)|.*$/g\n\tvar locator = domBuilder.locator;\n\t\n\tvar parseStack = [{currentNSMap:defaultNSMapCopy}]\n\tvar closeMap = {};\n\tvar start = 0;\n\twhile(true){\n\t\ttry{\n\t\t\tvar tagStart = source.indexOf('<',start);\n\t\t\tif(tagStart<0){\n\t\t\t\tif(!source.substr(start).match(/^\\s*$/)){\n\t\t\t\t\tvar doc = domBuilder.doc;\n\t    \t\t\tvar text = doc.createTextNode(source.substr(start));\n\t    \t\t\tdoc.appendChild(text);\n\t    \t\t\tdomBuilder.currentElement = text;\n\t\t\t\t}\n\t\t\t\treturn;\n\t\t\t}\n\t\t\tif(tagStart>start){\n\t\t\t\tappendText(tagStart);\n\t\t\t}\n\t\t\tswitch(source.charAt(tagStart+1)){\n\t\t\tcase '/':\n\t\t\t\tvar end = source.indexOf('>',tagStart+3);\n\t\t\t\tvar tagName = source.substring(tagStart + 2, end).replace(/[ \\t\\n\\r]+$/g, '');\n\t\t\t\tvar config = parseStack.pop();\n\t\t\t\tif(end<0){\n\t\t\t\t\t\n\t        \t\ttagName = source.substring(tagStart+2).replace(/[\\s<].*/,'');\n\t        \t\terrorHandler.error(\"end tag name: \"+tagName+' is not complete:'+config.tagName);\n\t        \t\tend = tagStart+1+tagName.length;\n\t        \t}else if(tagName.match(/\\s</)){\n\t        \t\ttagName = tagName.replace(/[\\s<].*/,'');\n\t        \t\terrorHandler.error(\"end tag name: \"+tagName+' maybe not complete');\n\t        \t\tend = tagStart+1+tagName.length;\n\t\t\t\t}\n\t\t\t\tvar localNSMap = config.localNSMap;\n\t\t\t\tvar endMatch = config.tagName == tagName;\n\t\t\t\tvar endIgnoreCaseMach = endMatch || config.tagName&&config.tagName.toLowerCase() == tagName.toLowerCase()\n\t\t        if(endIgnoreCaseMach){\n\t\t        \tdomBuilder.endElement(config.uri,config.localName,tagName);\n\t\t\t\t\tif(localNSMap){\n\t\t\t\t\t\tfor(var prefix in localNSMap){\n\t\t\t\t\t\t\tdomBuilder.endPrefixMapping(prefix) ;\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\t\t\t\t\tif(!endMatch){\n\t\t            \terrorHandler.fatalError(\"end tag name: \"+tagName+' is not match the current start tagName:'+config.tagName ); // No known test case\n\t\t\t\t\t}\n\t\t        }else{\n\t\t        \tparseStack.push(config)\n\t\t        }\n\t\t\t\t\n\t\t\t\tend++;\n\t\t\t\tbreak;\n\t\t\t\t// end elment\n\t\t\tcase '?':// <?...?>\n\t\t\t\tlocator&&position(tagStart);\n\t\t\t\tend = parseInstruction(source,tagStart,domBuilder);\n\t\t\t\tbreak;\n\t\t\tcase '!':// <!doctype,<![CDATA,<!--\n\t\t\t\tlocator&&position(tagStart);\n\t\t\t\tend = parseDCC(source,tagStart,domBuilder,errorHandler);\n\t\t\t\tbreak;\n\t\t\tdefault:\n\t\t\t\tlocator&&position(tagStart);\n\t\t\t\tvar el = new ElementAttributes();\n\t\t\t\tvar currentNSMap = parseStack[parseStack.length-1].currentNSMap;\n\t\t\t\t//elStartEnd\n\t\t\t\tvar end = parseElementStartPart(source,tagStart,el,currentNSMap,entityReplacer,errorHandler);\n\t\t\t\tvar len = el.length;\n\t\t\t\t\n\t\t\t\t\n\t\t\t\tif(!el.closed && fixSelfClosed(source,end,el.tagName,closeMap)){\n\t\t\t\t\tel.closed = true;\n\t\t\t\t\tif(!entityMap.nbsp){\n\t\t\t\t\t\terrorHandler.warning('unclosed xml attribute');\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t\tif(locator && len){\n\t\t\t\t\tvar locator2 = copyLocator(locator,{});\n\t\t\t\t\t//try{//attribute position fixed\n\t\t\t\t\tfor(var i = 0;i<len;i++){\n\t\t\t\t\t\tvar a = el[i];\n\t\t\t\t\t\tposition(a.offset);\n\t\t\t\t\t\ta.locator = copyLocator(locator,{});\n\t\t\t\t\t}\n\t\t\t\t\tdomBuilder.locator = locator2\n\t\t\t\t\tif(appendElement(el,domBuilder,currentNSMap)){\n\t\t\t\t\t\tparseStack.push(el)\n\t\t\t\t\t}\n\t\t\t\t\tdomBuilder.locator = locator;\n\t\t\t\t}else{\n\t\t\t\t\tif(appendElement(el,domBuilder,currentNSMap)){\n\t\t\t\t\t\tparseStack.push(el)\n\t\t\t\t\t}\n\t\t\t\t}\n\n\t\t\t\tif (NAMESPACE.isHTML(el.uri) && !el.closed) {\n\t\t\t\t\tend = parseHtmlSpecialContent(source,end,el.tagName,entityReplacer,domBuilder)\n\t\t\t\t} else {\n\t\t\t\t\tend++;\n\t\t\t\t}\n\t\t\t}\n\t\t}catch(e){\n\t\t\tif (e instanceof ParseError) {\n\t\t\t\tthrow e;\n\t\t\t}\n\t\t\terrorHandler.error('element parse error: '+e)\n\t\t\tend = -1;\n\t\t}\n\t\tif(end>start){\n\t\t\tstart = end;\n\t\t}else{\n\t\t\t//TODO: 这里有可能sax回退，有位置错误风险\n\t\t\tappendText(Math.max(tagStart,start)+1);\n\t\t}\n\t}\n}\nfunction copyLocator(f,t){\n\tt.lineNumber = f.lineNumber;\n\tt.columnNumber = f.columnNumber;\n\treturn t;\n}\n\n/**\n * @see #appendElement(source,elStartEnd,el,selfClosed,entityReplacer,domBuilder,parseStack);\n * @return end of the elementStartPart(end of elementEndPart for selfClosed el)\n */\nfunction parseElementStartPart(source,start,el,currentNSMap,entityReplacer,errorHandler){\n\n\t/**\n\t * @param {string} qname\n\t * @param {string} value\n\t * @param {number} startIndex\n\t */\n\tfunction addAttribute(qname, value, startIndex) {\n\t\tif (qname in el.attributeNames) errorHandler.fatalError('Attribute ' + qname + ' redefined')\n\t\tel.addValue(qname, value, startIndex)\n\t}\n\tvar attrName;\n\tvar value;\n\tvar p = ++start;\n\tvar s = S_TAG;//status\n\twhile(true){\n\t\tvar c = source.charAt(p);\n\t\tswitch(c){\n\t\tcase '=':\n\t\t\tif(s === S_ATTR){//attrName\n\t\t\t\tattrName = source.slice(start,p);\n\t\t\t\ts = S_EQ;\n\t\t\t}else if(s === S_ATTR_SPACE){\n\t\t\t\ts = S_EQ;\n\t\t\t}else{\n\t\t\t\t//fatalError: equal must after attrName or space after attrName\n\t\t\t\tthrow new Error('attribute equal must after attrName'); // No known test case\n\t\t\t}\n\t\t\tbreak;\n\t\tcase '\\'':\n\t\tcase '\"':\n\t\t\tif(s === S_EQ || s === S_ATTR //|| s == S_ATTR_SPACE\n\t\t\t\t){//equal\n\t\t\t\tif(s === S_ATTR){\n\t\t\t\t\terrorHandler.warning('attribute value must after \"=\"')\n\t\t\t\t\tattrName = source.slice(start,p)\n\t\t\t\t}\n\t\t\t\tstart = p+1;\n\t\t\t\tp = source.indexOf(c,start)\n\t\t\t\tif(p>0){\n\t\t\t\t\tvalue = source.slice(start,p).replace(/&#?\\w+;/g,entityReplacer);\n\t\t\t\t\taddAttribute(attrName, value, start-1);\n\t\t\t\t\ts = S_ATTR_END;\n\t\t\t\t}else{\n\t\t\t\t\t//fatalError: no end quot match\n\t\t\t\t\tthrow new Error('attribute value no end \\''+c+'\\' match');\n\t\t\t\t}\n\t\t\t}else if(s == S_ATTR_NOQUOT_VALUE){\n\t\t\t\tvalue = source.slice(start,p).replace(/&#?\\w+;/g,entityReplacer);\n\t\t\t\t//console.log(attrName,value,start,p)\n\t\t\t\taddAttribute(attrName, value, start);\n\t\t\t\t//console.dir(el)\n\t\t\t\terrorHandler.warning('attribute \"'+attrName+'\" missed start quot('+c+')!!');\n\t\t\t\tstart = p+1;\n\t\t\t\ts = S_ATTR_END\n\t\t\t}else{\n\t\t\t\t//fatalError: no equal before\n\t\t\t\tthrow new Error('attribute value must after \"=\"'); // No known test case\n\t\t\t}\n\t\t\tbreak;\n\t\tcase '/':\n\t\t\tswitch(s){\n\t\t\tcase S_TAG:\n\t\t\t\tel.setTagName(source.slice(start,p));\n\t\t\tcase S_ATTR_END:\n\t\t\tcase S_TAG_SPACE:\n\t\t\tcase S_TAG_CLOSE:\n\t\t\t\ts =S_TAG_CLOSE;\n\t\t\t\tel.closed = true;\n\t\t\tcase S_ATTR_NOQUOT_VALUE:\n\t\t\tcase S_ATTR:\n\t\t\tcase S_ATTR_SPACE:\n\t\t\t\tbreak;\n\t\t\t//case S_EQ:\n\t\t\tdefault:\n\t\t\t\tthrow new Error(\"attribute invalid close char('/')\") // No known test case\n\t\t\t}\n\t\t\tbreak;\n\t\tcase ''://end document\n\t\t\terrorHandler.error('unexpected end of input');\n\t\t\tif(s == S_TAG){\n\t\t\t\tel.setTagName(source.slice(start,p));\n\t\t\t}\n\t\t\treturn p;\n\t\tcase '>':\n\t\t\tswitch(s){\n\t\t\tcase S_TAG:\n\t\t\t\tel.setTagName(source.slice(start,p));\n\t\t\tcase S_ATTR_END:\n\t\t\tcase S_TAG_SPACE:\n\t\t\tcase S_TAG_CLOSE:\n\t\t\t\tbreak;//normal\n\t\t\tcase S_ATTR_NOQUOT_VALUE://Compatible state\n\t\t\tcase S_ATTR:\n\t\t\t\tvalue = source.slice(start,p);\n\t\t\t\tif(value.slice(-1) === '/'){\n\t\t\t\t\tel.closed  = true;\n\t\t\t\t\tvalue = value.slice(0,-1)\n\t\t\t\t}\n\t\t\tcase S_ATTR_SPACE:\n\t\t\t\tif(s === S_ATTR_SPACE){\n\t\t\t\t\tvalue = attrName;\n\t\t\t\t}\n\t\t\t\tif(s == S_ATTR_NOQUOT_VALUE){\n\t\t\t\t\terrorHandler.warning('attribute \"'+value+'\" missed quot(\")!');\n\t\t\t\t\taddAttribute(attrName, value.replace(/&#?\\w+;/g,entityReplacer), start)\n\t\t\t\t}else{\n\t\t\t\t\tif(!NAMESPACE.isHTML(currentNSMap['']) || !value.match(/^(?:disabled|checked|selected)$/i)){\n\t\t\t\t\t\terrorHandler.warning('attribute \"'+value+'\" missed value!! \"'+value+'\" instead!!')\n\t\t\t\t\t}\n\t\t\t\t\taddAttribute(value, value, start)\n\t\t\t\t}\n\t\t\t\tbreak;\n\t\t\tcase S_EQ:\n\t\t\t\tthrow new Error('attribute value missed!!');\n\t\t\t}\n//\t\t\tconsole.log(tagName,tagNamePattern,tagNamePattern.test(tagName))\n\t\t\treturn p;\n\t\t/*xml space '\\x20' | #x9 | #xD | #xA; */\n\t\tcase '\\u0080':\n\t\t\tc = ' ';\n\t\tdefault:\n\t\t\tif(c<= ' '){//space\n\t\t\t\tswitch(s){\n\t\t\t\tcase S_TAG:\n\t\t\t\t\tel.setTagName(source.slice(start,p));//tagName\n\t\t\t\t\ts = S_TAG_SPACE;\n\t\t\t\t\tbreak;\n\t\t\t\tcase S_ATTR:\n\t\t\t\t\tattrName = source.slice(start,p)\n\t\t\t\t\ts = S_ATTR_SPACE;\n\t\t\t\t\tbreak;\n\t\t\t\tcase S_ATTR_NOQUOT_VALUE:\n\t\t\t\t\tvar value = source.slice(start,p).replace(/&#?\\w+;/g,entityReplacer);\n\t\t\t\t\terrorHandler.warning('attribute \"'+value+'\" missed quot(\")!!');\n\t\t\t\t\taddAttribute(attrName, value, start)\n\t\t\t\tcase S_ATTR_END:\n\t\t\t\t\ts = S_TAG_SPACE;\n\t\t\t\t\tbreak;\n\t\t\t\t//case S_TAG_SPACE:\n\t\t\t\t//case S_EQ:\n\t\t\t\t//case S_ATTR_SPACE:\n\t\t\t\t//\tvoid();break;\n\t\t\t\t//case S_TAG_CLOSE:\n\t\t\t\t\t//ignore warning\n\t\t\t\t}\n\t\t\t}else{//not space\n//S_TAG,\tS_ATTR,\tS_EQ,\tS_ATTR_NOQUOT_VALUE\n//S_ATTR_SPACE,\tS_ATTR_END,\tS_TAG_SPACE, S_TAG_CLOSE\n\t\t\t\tswitch(s){\n\t\t\t\t//case S_TAG:void();break;\n\t\t\t\t//case S_ATTR:void();break;\n\t\t\t\t//case S_ATTR_NOQUOT_VALUE:void();break;\n\t\t\t\tcase S_ATTR_SPACE:\n\t\t\t\t\tvar tagName =  el.tagName;\n\t\t\t\t\tif (!NAMESPACE.isHTML(currentNSMap['']) || !attrName.match(/^(?:disabled|checked|selected)$/i)) {\n\t\t\t\t\t\terrorHandler.warning('attribute \"'+attrName+'\" missed value!! \"'+attrName+'\" instead2!!')\n\t\t\t\t\t}\n\t\t\t\t\taddAttribute(attrName, attrName, start);\n\t\t\t\t\tstart = p;\n\t\t\t\t\ts = S_ATTR;\n\t\t\t\t\tbreak;\n\t\t\t\tcase S_ATTR_END:\n\t\t\t\t\terrorHandler.warning('attribute space is required\"'+attrName+'\"!!')\n\t\t\t\tcase S_TAG_SPACE:\n\t\t\t\t\ts = S_ATTR;\n\t\t\t\t\tstart = p;\n\t\t\t\t\tbreak;\n\t\t\t\tcase S_EQ:\n\t\t\t\t\ts = S_ATTR_NOQUOT_VALUE;\n\t\t\t\t\tstart = p;\n\t\t\t\t\tbreak;\n\t\t\t\tcase S_TAG_CLOSE:\n\t\t\t\t\tthrow new Error(\"elements closed character '/' and '>' must be connected to\");\n\t\t\t\t}\n\t\t\t}\n\t\t}//end outer switch\n\t\t//console.log('p++',p)\n\t\tp++;\n\t}\n}\n/**\n * @return true if has new namespace define\n */\nfunction appendElement(el,domBuilder,currentNSMap){\n\tvar tagName = el.tagName;\n\tvar localNSMap = null;\n\t//var currentNSMap = parseStack[parseStack.length-1].currentNSMap;\n\tvar i = el.length;\n\twhile(i--){\n\t\tvar a = el[i];\n\t\tvar qName = a.qName;\n\t\tvar value = a.value;\n\t\tvar nsp = qName.indexOf(':');\n\t\tif(nsp>0){\n\t\t\tvar prefix = a.prefix = qName.slice(0,nsp);\n\t\t\tvar localName = qName.slice(nsp+1);\n\t\t\tvar nsPrefix = prefix === 'xmlns' && localName\n\t\t}else{\n\t\t\tlocalName = qName;\n\t\t\tprefix = null\n\t\t\tnsPrefix = qName === 'xmlns' && ''\n\t\t}\n\t\t//can not set prefix,because prefix !== ''\n\t\ta.localName = localName ;\n\t\t//prefix == null for no ns prefix attribute \n\t\tif(nsPrefix !== false){//hack!!\n\t\t\tif(localNSMap == null){\n\t\t\t\tlocalNSMap = {}\n\t\t\t\t//console.log(currentNSMap,0)\n\t\t\t\t_copy(currentNSMap,currentNSMap={})\n\t\t\t\t//console.log(currentNSMap,1)\n\t\t\t}\n\t\t\tcurrentNSMap[nsPrefix] = localNSMap[nsPrefix] = value;\n\t\t\ta.uri = NAMESPACE.XMLNS\n\t\t\tdomBuilder.startPrefixMapping(nsPrefix, value) \n\t\t}\n\t}\n\tvar i = el.length;\n\twhile(i--){\n\t\ta = el[i];\n\t\tvar prefix = a.prefix;\n\t\tif(prefix){//no prefix attribute has no namespace\n\t\t\tif(prefix === 'xml'){\n\t\t\t\ta.uri = NAMESPACE.XML;\n\t\t\t}if(prefix !== 'xmlns'){\n\t\t\t\ta.uri = currentNSMap[prefix || '']\n\t\t\t\t\n\t\t\t\t//{console.log('###'+a.qName,domBuilder.locator.systemId+'',currentNSMap,a.uri)}\n\t\t\t}\n\t\t}\n\t}\n\tvar nsp = tagName.indexOf(':');\n\tif(nsp>0){\n\t\tprefix = el.prefix = tagName.slice(0,nsp);\n\t\tlocalName = el.localName = tagName.slice(nsp+1);\n\t}else{\n\t\tprefix = null;//important!!\n\t\tlocalName = el.localName = tagName;\n\t}\n\t//no prefix element has default namespace\n\tvar ns = el.uri = currentNSMap[prefix || ''];\n\tdomBuilder.startElement(ns,localName,tagName,el);\n\t//endPrefixMapping and startPrefixMapping have not any help for dom builder\n\t//localNSMap = null\n\tif(el.closed){\n\t\tdomBuilder.endElement(ns,localName,tagName);\n\t\tif(localNSMap){\n\t\t\tfor(prefix in localNSMap){\n\t\t\t\tdomBuilder.endPrefixMapping(prefix) \n\t\t\t}\n\t\t}\n\t}else{\n\t\tel.currentNSMap = currentNSMap;\n\t\tel.localNSMap = localNSMap;\n\t\t//parseStack.push(el);\n\t\treturn true;\n\t}\n}\nfunction parseHtmlSpecialContent(source,elStartEnd,tagName,entityReplacer,domBuilder){\n\tif(/^(?:script|textarea)$/i.test(tagName)){\n\t\tvar elEndStart =  source.indexOf('</'+tagName+'>',elStartEnd);\n\t\tvar text = source.substring(elStartEnd+1,elEndStart);\n\t\tif(/[&<]/.test(text)){\n\t\t\tif(/^script$/i.test(tagName)){\n\t\t\t\t//if(!/\\]\\]>/.test(text)){\n\t\t\t\t\t//lexHandler.startCDATA();\n\t\t\t\t\tdomBuilder.characters(text,0,text.length);\n\t\t\t\t\t//lexHandler.endCDATA();\n\t\t\t\t\treturn elEndStart;\n\t\t\t\t//}\n\t\t\t}//}else{//text area\n\t\t\t\ttext = text.replace(/&#?\\w+;/g,entityReplacer);\n\t\t\t\tdomBuilder.characters(text,0,text.length);\n\t\t\t\treturn elEndStart;\n\t\t\t//}\n\t\t\t\n\t\t}\n\t}\n\treturn elStartEnd+1;\n}\nfunction fixSelfClosed(source,elStartEnd,tagName,closeMap){\n\t//if(tagName in closeMap){\n\tvar pos = closeMap[tagName];\n\tif(pos == null){\n\t\t//console.log(tagName)\n\t\tpos =  source.lastIndexOf('</'+tagName+'>')\n\t\tif(pos<elStartEnd){//忘记闭合\n\t\t\tpos = source.lastIndexOf('</'+tagName)\n\t\t}\n\t\tcloseMap[tagName] =pos\n\t}\n\treturn pos<elStartEnd;\n\t//} \n}\nfunction _copy(source,target){\n\tfor(var n in source){target[n] = source[n]}\n}\nfunction parseDCC(source,start,domBuilder,errorHandler){//sure start with '<!'\n\tvar next= source.charAt(start+2)\n\tswitch(next){\n\tcase '-':\n\t\tif(source.charAt(start + 3) === '-'){\n\t\t\tvar end = source.indexOf('-->',start+4);\n\t\t\t//append comment source.substring(4,end)//<!--\n\t\t\tif(end>start){\n\t\t\t\tdomBuilder.comment(source,start+4,end-start-4);\n\t\t\t\treturn end+3;\n\t\t\t}else{\n\t\t\t\terrorHandler.error(\"Unclosed comment\");\n\t\t\t\treturn -1;\n\t\t\t}\n\t\t}else{\n\t\t\t//error\n\t\t\treturn -1;\n\t\t}\n\tdefault:\n\t\tif(source.substr(start+3,6) == 'CDATA['){\n\t\t\tvar end = source.indexOf(']]>',start+9);\n\t\t\tdomBuilder.startCDATA();\n\t\t\tdomBuilder.characters(source,start+9,end-start-9);\n\t\t\tdomBuilder.endCDATA() \n\t\t\treturn end+3;\n\t\t}\n\t\t//<!DOCTYPE\n\t\t//startDTD(java.lang.String name, java.lang.String publicId, java.lang.String systemId) \n\t\tvar matchs = split(source,start);\n\t\tvar len = matchs.length;\n\t\tif(len>1 && /!doctype/i.test(matchs[0][0])){\n\t\t\tvar name = matchs[1][0];\n\t\t\tvar pubid = false;\n\t\t\tvar sysid = false;\n\t\t\tif(len>3){\n\t\t\t\tif(/^public$/i.test(matchs[2][0])){\n\t\t\t\t\tpubid = matchs[3][0];\n\t\t\t\t\tsysid = len>4 && matchs[4][0];\n\t\t\t\t}else if(/^system$/i.test(matchs[2][0])){\n\t\t\t\t\tsysid = matchs[3][0];\n\t\t\t\t}\n\t\t\t}\n\t\t\tvar lastMatch = matchs[len-1]\n\t\t\tdomBuilder.startDTD(name, pubid, sysid);\n\t\t\tdomBuilder.endDTD();\n\t\t\t\n\t\t\treturn lastMatch.index+lastMatch[0].length\n\t\t}\n\t}\n\treturn -1;\n}\n\n\n\nfunction parseInstruction(source,start,domBuilder){\n\tvar end = source.indexOf('?>',start);\n\tif(end){\n\t\tvar match = source.substring(start,end).match(/^<\\?(\\S*)\\s*([\\s\\S]*?)\\s*$/);\n\t\tif(match){\n\t\t\tvar len = match[0].length;\n\t\t\tdomBuilder.processingInstruction(match[1], match[2]) ;\n\t\t\treturn end+2;\n\t\t}else{//error\n\t\t\treturn -1;\n\t\t}\n\t}\n\treturn -1;\n}\n\nfunction ElementAttributes(){\n\tthis.attributeNames = {}\n}\nElementAttributes.prototype = {\n\tsetTagName:function(tagName){\n\t\tif(!tagNamePattern.test(tagName)){\n\t\t\tthrow new Error('invalid tagName:'+tagName)\n\t\t}\n\t\tthis.tagName = tagName\n\t},\n\taddValue:function(qName, value, offset) {\n\t\tif(!tagNamePattern.test(qName)){\n\t\t\tthrow new Error('invalid attribute:'+qName)\n\t\t}\n\t\tthis.attributeNames[qName] = this.length;\n\t\tthis[this.length++] = {qName:qName,value:value,offset:offset}\n\t},\n\tlength:0,\n\tgetLocalName:function(i){return this[i].localName},\n\tgetLocator:function(i){return this[i].locator},\n\tgetQName:function(i){return this[i].qName},\n\tgetURI:function(i){return this[i].uri},\n\tgetValue:function(i){return this[i].value}\n//\t,getIndex:function(uri, localName)){\n//\t\tif(localName){\n//\t\t\t\n//\t\t}else{\n//\t\t\tvar qName = uri\n//\t\t}\n//\t},\n//\tgetValue:function(){return this.getValue(this.getIndex.apply(this,arguments))},\n//\tgetType:function(uri,localName){}\n//\tgetType:function(i){},\n}\n\n\n\nfunction split(source,start){\n\tvar match;\n\tvar buf = [];\n\tvar reg = /'[^']+'|\"[^\"]+\"|[^\\s<>\\/=]+=?|(\\/?\\s*>|<)/g;\n\treg.lastIndex = start;\n\treg.exec(source);//skip <\n\twhile(match = reg.exec(source)){\n\t\tbuf.push(match);\n\t\tif(match[1])return buf;\n\t}\n}\n\nexports.XMLReader = XMLReader;\nexports.ParseError = ParseError;\n","// `Symbol.prototype.description` getter\n// https://tc39.github.io/ecma262/#sec-symbol.prototype.description\n'use strict';\nvar $ = require('../internals/export');\nvar DESCRIPTORS = require('../internals/descriptors');\nvar global = require('../internals/global');\nvar has = require('../internals/has');\nvar isObject = require('../internals/is-object');\nvar defineProperty = require('../internals/object-define-property').f;\nvar copyConstructorProperties = require('../internals/copy-constructor-properties');\n\nvar NativeSymbol = global.Symbol;\n\nif (DESCRIPTORS && typeof NativeSymbol == 'function' && (!('description' in NativeSymbol.prototype) ||\n  // Safari 12 bug\n  NativeSymbol().description !== undefined\n)) {\n  var EmptyStringDescriptionStore = {};\n  // wrap Symbol constructor for correct work with undefined description\n  var SymbolWrapper = function Symbol() {\n    var description = arguments.length < 1 || arguments[0] === undefined ? undefined : String(arguments[0]);\n    var result = this instanceof SymbolWrapper\n      ? new NativeSymbol(description)\n      // in Edge 13, String(Symbol(undefined)) === 'Symbol(undefined)'\n      : description === undefined ? NativeSymbol() : NativeSymbol(description);\n    if (description === '') EmptyStringDescriptionStore[result] = true;\n    return result;\n  };\n  copyConstructorProperties(SymbolWrapper, NativeSymbol);\n  var symbolPrototype = SymbolWrapper.prototype = NativeSymbol.prototype;\n  symbolPrototype.constructor = SymbolWrapper;\n\n  var symbolToString = symbolPrototype.toString;\n  var native = String(NativeSymbol('test')) == 'Symbol(test)';\n  var regexp = /^Symbol\\((.*)\\)[^)]+$/;\n  defineProperty(symbolPrototype, 'description', {\n    configurable: true,\n    get: function description() {\n      var symbol = isObject(this) ? this.valueOf() : this;\n      var string = symbolToString.call(symbol);\n      if (has(EmptyStringDescriptionStore, symbol)) return '';\n      var desc = native ? string.slice(7, -1) : string.replace(regexp, '$1');\n      return desc === '' ? undefined : desc;\n    }\n  });\n\n  $({ global: true, forced: true }, {\n    Symbol: SymbolWrapper\n  });\n}\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _createClass=function(){function defineProperties(target,props){for(var i=0;i<props.length;i++){var descriptor=props[i];descriptor.enumerable=descriptor.enumerable||false;descriptor.configurable=true;if(\"value\"in descriptor)descriptor.writable=true;Object.defineProperty(target,descriptor.key,descriptor);}}return function(Constructor,protoProps,staticProps){if(protoProps)defineProperties(Constructor.prototype,protoProps);if(staticProps)defineProperties(Constructor,staticProps);return Constructor;};}();function _classCallCheck(instance,Constructor){if(!(instance instanceof Constructor)){throw new TypeError(\"Cannot call a class as a function\");}}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n *//**\n * Dash constants declaration\n * @class\n * @ignore\n */var DashConstants=function(){_createClass(DashConstants,[{key:'init',value:function init(){this.BASE_URL='BaseURL';this.SEGMENT_BASE='SegmentBase';this.SEGMENT_TEMPLATE='SegmentTemplate';this.SEGMENT_LIST='SegmentList';this.SEGMENT_URL='SegmentURL';this.SEGMENT_TIMELINE='SegmentTimeline';this.SEGMENT_PROFILES='segmentProfiles';this.ADAPTATION_SET='AdaptationSet';this.REPRESENTATION='Representation';this.REPRESENTATION_INDEX='RepresentationIndex';this.SUB_REPRESENTATION='SubRepresentation';this.INITIALIZATION='Initialization';this.INITIALIZATION_MINUS='initialization';this.MPD='MPD';this.PERIOD='Period';this.ASSET_IDENTIFIER='AssetIdentifier';this.EVENT_STREAM='EventStream';this.ID='id';this.PROFILES='profiles';this.SERVICE_LOCATION='serviceLocation';this.RANGE='range';this.INDEX='index';this.MEDIA='media';this.BYTE_RANGE='byteRange';this.INDEX_RANGE='indexRange';this.MEDIA_RANGE='mediaRange';this.VALUE='value';this.CONTENT_TYPE='contentType';this.MIME_TYPE='mimeType';this.BITSTREAM_SWITCHING='BitstreamSwitching';this.BITSTREAM_SWITCHING_MINUS='bitstreamSwitching';this.CODECS='codecs';this.DEPENDENCY_ID='dependencyId';this.MEDIA_STREAM_STRUCTURE_ID='mediaStreamStructureId';this.METRICS='Metrics';this.METRICS_MINUS='metrics';this.REPORTING='Reporting';this.WIDTH='width';this.HEIGHT='height';this.SAR='sar';this.FRAMERATE='frameRate';this.AUDIO_SAMPLING_RATE='audioSamplingRate';this.MAXIMUM_SAP_PERIOD='maximumSAPPeriod';this.START_WITH_SAP='startWithSAP';this.MAX_PLAYOUT_RATE='maxPlayoutRate';this.CODING_DEPENDENCY='codingDependency';this.SCAN_TYPE='scanType';this.FRAME_PACKING='FramePacking';this.AUDIO_CHANNEL_CONFIGURATION='AudioChannelConfiguration';this.CONTENT_PROTECTION='ContentProtection';this.ESSENTIAL_PROPERTY='EssentialProperty';this.SUPPLEMENTAL_PROPERTY='SupplementalProperty';this.INBAND_EVENT_STREAM='InbandEventStream';this.ACCESSIBILITY='Accessibility';this.ROLE='Role';this.RATING='Rating';this.CONTENT_COMPONENT='ContentComponent';this.SUBSET='Subset';this.LANG='lang';this.VIEWPOINT='Viewpoint';this.ROLE_ASARRAY='Role_asArray';this.ACCESSIBILITY_ASARRAY='Accessibility_asArray';this.AUDIOCHANNELCONFIGURATION_ASARRAY='AudioChannelConfiguration_asArray';this.CONTENTPROTECTION_ASARRAY='ContentProtection_asArray';this.MAIN='main';this.DYNAMIC='dynamic';this.MEDIA_PRESENTATION_DURATION='mediaPresentationDuration';this.MINIMUM_UPDATE_PERIOD='minimumUpdatePeriod';this.CODEC_PRIVATE_DATA='codecPrivateData';this.BANDWITH='bandwidth';this.SOURCE_URL='sourceURL';this.TIMESCALE='timescale';this.DURATION='duration';this.START_NUMBER='startNumber';this.PRESENTATION_TIME_OFFSET='presentationTimeOffset';this.AVAILABILITY_START_TIME='availabilityStartTime';this.AVAILABILITY_END_TIME='availabilityEndTime';this.TIMESHIFT_BUFFER_DEPTH='timeShiftBufferDepth';this.MAX_SEGMENT_DURATION='maxSegmentDuration';this.PRESENTATION_TIME='presentationTime';this.MIN_BUFFER_TIME='minBufferTime';this.MAX_SUBSEGMENT_DURATION='maxSubsegmentDuration';this.START='start';this.AVAILABILITY_TIME_OFFSET='availabilityTimeOffset';this.AVAILABILITY_TIME_COMPLETE='availabilityTimeComplete';this.CENC_DEFAULT_KID='cenc:default_KID';this.DVB_PRIORITY='dvb:priority';this.DVB_WEIGHT='dvb:weight';this.SUGGESTED_PRESENTATION_DELAY='suggestedPresentationDelay';this.SERVICE_DESCRIPTION='ServiceDescription';this.SERVICE_DESCRIPTION_SCOPE='Scope';this.SERVICE_DESCRIPTION_LATENCY='Latency';this.SERVICE_DESCRIPTION_PLAYBACK_RATE='PlaybackRate';}}]);function DashConstants(){_classCallCheck(this,DashConstants);this.init();}return DashConstants;}();var constants=new DashConstants();exports.default=constants;\n//# sourceMappingURL=DashConstants.js.map\n","var has = require('../internals/has');\nvar toObject = require('../internals/to-object');\nvar sharedKey = require('../internals/shared-key');\nvar CORRECT_PROTOTYPE_GETTER = require('../internals/correct-prototype-getter');\n\nvar IE_PROTO = sharedKey('IE_PROTO');\nvar ObjectPrototype = Object.prototype;\n\n// `Object.getPrototypeOf` method\n// https://tc39.github.io/ecma262/#sec-object.getprototypeof\nmodule.exports = CORRECT_PROTOTYPE_GETTER ? Object.getPrototypeOf : function (O) {\n  O = toObject(O);\n  if (has(O, IE_PROTO)) return O[IE_PROTO];\n  if (typeof O.constructor == 'function' && O instanceof O.constructor) {\n    return O.constructor.prototype;\n  } return O instanceof Object ? ObjectPrototype : null;\n};\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _ErrorsBase2=require('./ErrorsBase');var _ErrorsBase3=_interopRequireDefault(_ErrorsBase2);function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}function _classCallCheck(instance,Constructor){if(!(instance instanceof Constructor)){throw new TypeError(\"Cannot call a class as a function\");}}function _possibleConstructorReturn(self,call){if(!self){throw new ReferenceError(\"this hasn't been initialised - super() hasn't been called\");}return call&&(typeof call===\"object\"||typeof call===\"function\")?call:self;}function _inherits(subClass,superClass){if(typeof superClass!==\"function\"&&superClass!==null){throw new TypeError(\"Super expression must either be null or a function, not \"+typeof superClass);}subClass.prototype=Object.create(superClass&&superClass.prototype,{constructor:{value:subClass,enumerable:false,writable:true,configurable:true}});if(superClass)Object.setPrototypeOf?Object.setPrototypeOf(subClass,superClass):subClass.__proto__=superClass;}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n *//**\n * Errors declaration\n * @class\n */var Errors=function(_ErrorsBase){_inherits(Errors,_ErrorsBase);function Errors(){_classCallCheck(this,Errors);/**\n         * Error code returned when a manifest parsing error occurs\n         */var _this=_possibleConstructorReturn(this,(Errors.__proto__||Object.getPrototypeOf(Errors)).call(this));_this.MANIFEST_LOADER_PARSING_FAILURE_ERROR_CODE=10;/**\n         * Error code returned when a manifest loading error occurs\n         */_this.MANIFEST_LOADER_LOADING_FAILURE_ERROR_CODE=11;/**\n         * Error code returned when a xlink loading error occurs\n         */_this.XLINK_LOADER_LOADING_FAILURE_ERROR_CODE=12;/**\n         * Error code returned when the update of segments list has failed\n         */_this.SEGMENTS_UPDATE_FAILED_ERROR_CODE=13;_this.SEGMENTS_UNAVAILABLE_ERROR_CODE=14;_this.SEGMENT_BASE_LOADER_ERROR_CODE=15;_this.TIME_SYNC_FAILED_ERROR_CODE=16;_this.FRAGMENT_LOADER_LOADING_FAILURE_ERROR_CODE=17;_this.FRAGMENT_LOADER_NULL_REQUEST_ERROR_CODE=18;_this.URL_RESOLUTION_FAILED_GENERIC_ERROR_CODE=19;_this.APPEND_ERROR_CODE=20;_this.REMOVE_ERROR_CODE=21;_this.DATA_UPDATE_FAILED_ERROR_CODE=22;/**\n         * Error code returned when MediaSource is not supported by the browser\n         */_this.CAPABILITY_MEDIASOURCE_ERROR_CODE=23;/**\n         * Error code returned when Protected contents are not supported\n         */_this.CAPABILITY_MEDIAKEYS_ERROR_CODE=24;_this.DOWNLOAD_ERROR_ID_MANIFEST_CODE=25;_this.DOWNLOAD_ERROR_ID_SIDX_CODE=26;_this.DOWNLOAD_ERROR_ID_CONTENT_CODE=27;_this.DOWNLOAD_ERROR_ID_INITIALIZATION_CODE=28;_this.DOWNLOAD_ERROR_ID_XLINK_CODE=29;_this.MANIFEST_ERROR_ID_CODEC_CODE=30;_this.MANIFEST_ERROR_ID_PARSE_CODE=31;/**\n         * Error code returned when no stream (period) has been detected in the manifest\n         */_this.MANIFEST_ERROR_ID_NOSTREAMS_CODE=32;/**\n         * Error code returned when something wrong has append during subtitles parsing (TTML or VTT)\n         */_this.TIMED_TEXT_ERROR_ID_PARSE_CODE=33;/**\n         * Error code returned when a 'muxed' media type has been detected in the manifest. This type is not supported\n         */_this.MANIFEST_ERROR_ID_MULTIPLEXED_CODE=34;/**\n         * Error code returned when a media source type is not supported\n         */_this.MEDIASOURCE_TYPE_UNSUPPORTED_CODE=35;_this.MANIFEST_LOADER_PARSING_FAILURE_ERROR_MESSAGE='parsing failed for ';_this.MANIFEST_LOADER_LOADING_FAILURE_ERROR_MESSAGE='Failed loading manifest: ';_this.XLINK_LOADER_LOADING_FAILURE_ERROR_MESSAGE='Failed loading Xlink element: ';_this.SEGMENTS_UPDATE_FAILED_ERROR_MESSAGE='Segments update failed';_this.SEGMENTS_UNAVAILABLE_ERROR_MESSAGE='no segments are available yet';_this.SEGMENT_BASE_LOADER_ERROR_MESSAGE='error loading segments';_this.TIME_SYNC_FAILED_ERROR_MESSAGE='Failed to synchronize time';_this.FRAGMENT_LOADER_NULL_REQUEST_ERROR_MESSAGE='request is null';_this.URL_RESOLUTION_FAILED_GENERIC_ERROR_MESSAGE='Failed to resolve a valid URL';_this.APPEND_ERROR_MESSAGE='chunk is not defined';_this.REMOVE_ERROR_MESSAGE='buffer is not defined';_this.DATA_UPDATE_FAILED_ERROR_MESSAGE='Data update failed';_this.CAPABILITY_MEDIASOURCE_ERROR_MESSAGE='mediasource is not supported';_this.CAPABILITY_MEDIAKEYS_ERROR_MESSAGE='mediakeys is not supported';_this.TIMED_TEXT_ERROR_MESSAGE_PARSE='parsing error :';_this.MEDIASOURCE_TYPE_UNSUPPORTED_MESSAGE='Error creating source buffer of type : ';return _this;}return Errors;}(_ErrorsBase3.default);var errors=new Errors();exports.default=errors;\n//# sourceMappingURL=Errors.js.map\n","var fails = require('../internals/fails');\n\nmodule.exports = !fails(function () {\n  function F() { /* empty */ }\n  F.prototype.constructor = null;\n  return Object.getPrototypeOf(new F()) !== F.prototype;\n});\n","var conventions = require(\"./conventions\");\n\nvar NAMESPACE = conventions.NAMESPACE;\n\n/**\n * A prerequisite for `[].filter`, to drop elements that are empty\n * @param {string} input\n * @returns {boolean}\n */\nfunction notEmptyString (input) {\n\treturn input !== ''\n}\n/**\n * @see https://infra.spec.whatwg.org/#split-on-ascii-whitespace\n * @see https://infra.spec.whatwg.org/#ascii-whitespace\n *\n * @param {string} input\n * @returns {string[]} (can be empty)\n */\nfunction splitOnASCIIWhitespace(input) {\n\t// U+0009 TAB, U+000A LF, U+000C FF, U+000D CR, U+0020 SPACE\n\treturn input ? input.split(/[\\t\\n\\f\\r ]+/).filter(notEmptyString) : []\n}\n\n/**\n * Adds element as a key to current if it is not already present.\n *\n * @param {Record<string, boolean | undefined>} current\n * @param {string} element\n * @returns {Record<string, boolean | undefined>}\n */\nfunction orderedSetReducer (current, element) {\n\tif (!current.hasOwnProperty(element)) {\n\t\tcurrent[element] = true;\n\t}\n\treturn current;\n}\n\n/**\n * @see https://infra.spec.whatwg.org/#ordered-set\n * @param {string} input\n * @returns {string[]}\n */\nfunction toOrderedSet(input) {\n\tif (!input) return [];\n\tvar list = splitOnASCIIWhitespace(input);\n\treturn Object.keys(list.reduce(orderedSetReducer, {}))\n}\n\n/**\n * Uses `list.indexOf` to implement something like `Array.prototype.includes`,\n * which we can not rely on being available.\n *\n * @param {any[]} list\n * @returns {function(any): boolean}\n */\nfunction arrayIncludes (list) {\n\treturn function(element) {\n\t\treturn list && list.indexOf(element) !== -1;\n\t}\n}\n\nfunction copy(src,dest){\n\tfor(var p in src){\n\t\tdest[p] = src[p];\n\t}\n}\n\n/**\n^\\w+\\.prototype\\.([_\\w]+)\\s*=\\s*((?:.*\\{\\s*?[\\r\\n][\\s\\S]*?^})|\\S.*?(?=[;\\r\\n]));?\n^\\w+\\.prototype\\.([_\\w]+)\\s*=\\s*(\\S.*?(?=[;\\r\\n]));?\n */\nfunction _extends(Class,Super){\n\tvar pt = Class.prototype;\n\tif(!(pt instanceof Super)){\n\t\tfunction t(){};\n\t\tt.prototype = Super.prototype;\n\t\tt = new t();\n\t\tcopy(pt,t);\n\t\tClass.prototype = pt = t;\n\t}\n\tif(pt.constructor != Class){\n\t\tif(typeof Class != 'function'){\n\t\t\tconsole.error(\"unknown Class:\"+Class)\n\t\t}\n\t\tpt.constructor = Class\n\t}\n}\n\n// Node Types\nvar NodeType = {}\nvar ELEMENT_NODE                = NodeType.ELEMENT_NODE                = 1;\nvar ATTRIBUTE_NODE              = NodeType.ATTRIBUTE_NODE              = 2;\nvar TEXT_NODE                   = NodeType.TEXT_NODE                   = 3;\nvar CDATA_SECTION_NODE          = NodeType.CDATA_SECTION_NODE          = 4;\nvar ENTITY_REFERENCE_NODE       = NodeType.ENTITY_REFERENCE_NODE       = 5;\nvar ENTITY_NODE                 = NodeType.ENTITY_NODE                 = 6;\nvar PROCESSING_INSTRUCTION_NODE = NodeType.PROCESSING_INSTRUCTION_NODE = 7;\nvar COMMENT_NODE                = NodeType.COMMENT_NODE                = 8;\nvar DOCUMENT_NODE               = NodeType.DOCUMENT_NODE               = 9;\nvar DOCUMENT_TYPE_NODE          = NodeType.DOCUMENT_TYPE_NODE          = 10;\nvar DOCUMENT_FRAGMENT_NODE      = NodeType.DOCUMENT_FRAGMENT_NODE      = 11;\nvar NOTATION_NODE               = NodeType.NOTATION_NODE               = 12;\n\n// ExceptionCode\nvar ExceptionCode = {}\nvar ExceptionMessage = {};\nvar INDEX_SIZE_ERR              = ExceptionCode.INDEX_SIZE_ERR              = ((ExceptionMessage[1]=\"Index size error\"),1);\nvar DOMSTRING_SIZE_ERR          = ExceptionCode.DOMSTRING_SIZE_ERR          = ((ExceptionMessage[2]=\"DOMString size error\"),2);\nvar HIERARCHY_REQUEST_ERR       = ExceptionCode.HIERARCHY_REQUEST_ERR       = ((ExceptionMessage[3]=\"Hierarchy request error\"),3);\nvar WRONG_DOCUMENT_ERR          = ExceptionCode.WRONG_DOCUMENT_ERR          = ((ExceptionMessage[4]=\"Wrong document\"),4);\nvar INVALID_CHARACTER_ERR       = ExceptionCode.INVALID_CHARACTER_ERR       = ((ExceptionMessage[5]=\"Invalid character\"),5);\nvar NO_DATA_ALLOWED_ERR         = ExceptionCode.NO_DATA_ALLOWED_ERR         = ((ExceptionMessage[6]=\"No data allowed\"),6);\nvar NO_MODIFICATION_ALLOWED_ERR = ExceptionCode.NO_MODIFICATION_ALLOWED_ERR = ((ExceptionMessage[7]=\"No modification allowed\"),7);\nvar NOT_FOUND_ERR               = ExceptionCode.NOT_FOUND_ERR               = ((ExceptionMessage[8]=\"Not found\"),8);\nvar NOT_SUPPORTED_ERR           = ExceptionCode.NOT_SUPPORTED_ERR           = ((ExceptionMessage[9]=\"Not supported\"),9);\nvar INUSE_ATTRIBUTE_ERR         = ExceptionCode.INUSE_ATTRIBUTE_ERR         = ((ExceptionMessage[10]=\"Attribute in use\"),10);\n//level2\nvar INVALID_STATE_ERR        \t= ExceptionCode.INVALID_STATE_ERR        \t= ((ExceptionMessage[11]=\"Invalid state\"),11);\nvar SYNTAX_ERR               \t= ExceptionCode.SYNTAX_ERR               \t= ((ExceptionMessage[12]=\"Syntax error\"),12);\nvar INVALID_MODIFICATION_ERR \t= ExceptionCode.INVALID_MODIFICATION_ERR \t= ((ExceptionMessage[13]=\"Invalid modification\"),13);\nvar NAMESPACE_ERR            \t= ExceptionCode.NAMESPACE_ERR           \t= ((ExceptionMessage[14]=\"Invalid namespace\"),14);\nvar INVALID_ACCESS_ERR       \t= ExceptionCode.INVALID_ACCESS_ERR      \t= ((ExceptionMessage[15]=\"Invalid access\"),15);\n\n/**\n * DOM Level 2\n * Object DOMException\n * @see http://www.w3.org/TR/2000/REC-DOM-Level-2-Core-20001113/ecma-script-binding.html\n * @see http://www.w3.org/TR/REC-DOM-Level-1/ecma-script-language-binding.html\n */\nfunction DOMException(code, message) {\n\tif(message instanceof Error){\n\t\tvar error = message;\n\t}else{\n\t\terror = this;\n\t\tError.call(this, ExceptionMessage[code]);\n\t\tthis.message = ExceptionMessage[code];\n\t\tif(Error.captureStackTrace) Error.captureStackTrace(this, DOMException);\n\t}\n\terror.code = code;\n\tif(message) this.message = this.message + \": \" + message;\n\treturn error;\n};\nDOMException.prototype = Error.prototype;\ncopy(ExceptionCode,DOMException)\n\n/**\n * @see http://www.w3.org/TR/2000/REC-DOM-Level-2-Core-20001113/core.html#ID-536297177\n * The NodeList interface provides the abstraction of an ordered collection of nodes, without defining or constraining how this collection is implemented. NodeList objects in the DOM are live.\n * The items in the NodeList are accessible via an integral index, starting from 0.\n */\nfunction NodeList() {\n};\nNodeList.prototype = {\n\t/**\n\t * The number of nodes in the list. The range of valid child node indices is 0 to length-1 inclusive.\n\t * @standard level1\n\t */\n\tlength:0, \n\t/**\n\t * Returns the indexth item in the collection. If index is greater than or equal to the number of nodes in the list, this returns null.\n\t * @standard level1\n\t * @param index  unsigned long \n\t *   Index into the collection.\n\t * @return Node\n\t * \tThe node at the indexth position in the NodeList, or null if that is not a valid index. \n\t */\n\titem: function(index) {\n\t\treturn this[index] || null;\n\t},\n\ttoString:function(isHTML,nodeFilter){\n\t\tfor(var buf = [], i = 0;i<this.length;i++){\n\t\t\tserializeToString(this[i],buf,isHTML,nodeFilter);\n\t\t}\n\t\treturn buf.join('');\n\t}\n};\n\nfunction LiveNodeList(node,refresh){\n\tthis._node = node;\n\tthis._refresh = refresh\n\t_updateLiveList(this);\n}\nfunction _updateLiveList(list){\n\tvar inc = list._node._inc || list._node.ownerDocument._inc;\n\tif(list._inc != inc){\n\t\tvar ls = list._refresh(list._node);\n\t\t//console.log(ls.length)\n\t\t__set__(list,'length',ls.length);\n\t\tcopy(ls,list);\n\t\tlist._inc = inc;\n\t}\n}\nLiveNodeList.prototype.item = function(i){\n\t_updateLiveList(this);\n\treturn this[i];\n}\n\n_extends(LiveNodeList,NodeList);\n\n/**\n * Objects implementing the NamedNodeMap interface are used\n * to represent collections of nodes that can be accessed by name.\n * Note that NamedNodeMap does not inherit from NodeList;\n * NamedNodeMaps are not maintained in any particular order.\n * Objects contained in an object implementing NamedNodeMap may also be accessed by an ordinal index,\n * but this is simply to allow convenient enumeration of the contents of a NamedNodeMap,\n * and does not imply that the DOM specifies an order to these Nodes.\n * NamedNodeMap objects in the DOM are live.\n * used for attributes or DocumentType entities \n */\nfunction NamedNodeMap() {\n};\n\nfunction _findNodeIndex(list,node){\n\tvar i = list.length;\n\twhile(i--){\n\t\tif(list[i] === node){return i}\n\t}\n}\n\nfunction _addNamedNode(el,list,newAttr,oldAttr){\n\tif(oldAttr){\n\t\tlist[_findNodeIndex(list,oldAttr)] = newAttr;\n\t}else{\n\t\tlist[list.length++] = newAttr;\n\t}\n\tif(el){\n\t\tnewAttr.ownerElement = el;\n\t\tvar doc = el.ownerDocument;\n\t\tif(doc){\n\t\t\toldAttr && _onRemoveAttribute(doc,el,oldAttr);\n\t\t\t_onAddAttribute(doc,el,newAttr);\n\t\t}\n\t}\n}\nfunction _removeNamedNode(el,list,attr){\n\t//console.log('remove attr:'+attr)\n\tvar i = _findNodeIndex(list,attr);\n\tif(i>=0){\n\t\tvar lastIndex = list.length-1\n\t\twhile(i<lastIndex){\n\t\t\tlist[i] = list[++i]\n\t\t}\n\t\tlist.length = lastIndex;\n\t\tif(el){\n\t\t\tvar doc = el.ownerDocument;\n\t\t\tif(doc){\n\t\t\t\t_onRemoveAttribute(doc,el,attr);\n\t\t\t\tattr.ownerElement = null;\n\t\t\t}\n\t\t}\n\t}else{\n\t\tthrow DOMException(NOT_FOUND_ERR,new Error(el.tagName+'@'+attr))\n\t}\n}\nNamedNodeMap.prototype = {\n\tlength:0,\n\titem:NodeList.prototype.item,\n\tgetNamedItem: function(key) {\n//\t\tif(key.indexOf(':')>0 || key == 'xmlns'){\n//\t\t\treturn null;\n//\t\t}\n\t\t//console.log()\n\t\tvar i = this.length;\n\t\twhile(i--){\n\t\t\tvar attr = this[i];\n\t\t\t//console.log(attr.nodeName,key)\n\t\t\tif(attr.nodeName == key){\n\t\t\t\treturn attr;\n\t\t\t}\n\t\t}\n\t},\n\tsetNamedItem: function(attr) {\n\t\tvar el = attr.ownerElement;\n\t\tif(el && el!=this._ownerElement){\n\t\t\tthrow new DOMException(INUSE_ATTRIBUTE_ERR);\n\t\t}\n\t\tvar oldAttr = this.getNamedItem(attr.nodeName);\n\t\t_addNamedNode(this._ownerElement,this,attr,oldAttr);\n\t\treturn oldAttr;\n\t},\n\t/* returns Node */\n\tsetNamedItemNS: function(attr) {// raises: WRONG_DOCUMENT_ERR,NO_MODIFICATION_ALLOWED_ERR,INUSE_ATTRIBUTE_ERR\n\t\tvar el = attr.ownerElement, oldAttr;\n\t\tif(el && el!=this._ownerElement){\n\t\t\tthrow new DOMException(INUSE_ATTRIBUTE_ERR);\n\t\t}\n\t\toldAttr = this.getNamedItemNS(attr.namespaceURI,attr.localName);\n\t\t_addNamedNode(this._ownerElement,this,attr,oldAttr);\n\t\treturn oldAttr;\n\t},\n\n\t/* returns Node */\n\tremoveNamedItem: function(key) {\n\t\tvar attr = this.getNamedItem(key);\n\t\t_removeNamedNode(this._ownerElement,this,attr);\n\t\treturn attr;\n\t\t\n\t\t\n\t},// raises: NOT_FOUND_ERR,NO_MODIFICATION_ALLOWED_ERR\n\t\n\t//for level2\n\tremoveNamedItemNS:function(namespaceURI,localName){\n\t\tvar attr = this.getNamedItemNS(namespaceURI,localName);\n\t\t_removeNamedNode(this._ownerElement,this,attr);\n\t\treturn attr;\n\t},\n\tgetNamedItemNS: function(namespaceURI, localName) {\n\t\tvar i = this.length;\n\t\twhile(i--){\n\t\t\tvar node = this[i];\n\t\t\tif(node.localName == localName && node.namespaceURI == namespaceURI){\n\t\t\t\treturn node;\n\t\t\t}\n\t\t}\n\t\treturn null;\n\t}\n};\n\n/**\n * The DOMImplementation interface represents an object providing methods\n * which are not dependent on any particular document.\n * Such an object is returned by the `Document.implementation` property.\n *\n * __The individual methods describe the differences compared to the specs.__\n *\n * @constructor\n *\n * @see https://developer.mozilla.org/en-US/docs/Web/API/DOMImplementation MDN\n * @see https://www.w3.org/TR/REC-DOM-Level-1/level-one-core.html#ID-102161490 DOM Level 1 Core (Initial)\n * @see https://www.w3.org/TR/DOM-Level-2-Core/core.html#ID-102161490 DOM Level 2 Core\n * @see https://www.w3.org/TR/DOM-Level-3-Core/core.html#ID-102161490 DOM Level 3 Core\n * @see https://dom.spec.whatwg.org/#domimplementation DOM Living Standard\n */\nfunction DOMImplementation() {\n}\n\nDOMImplementation.prototype = {\n\t/**\n\t * The DOMImplementation.hasFeature() method returns a Boolean flag indicating if a given feature is supported.\n\t * The different implementations fairly diverged in what kind of features were reported.\n\t * The latest version of the spec settled to force this method to always return true, where the functionality was accurate and in use.\n\t *\n\t * @deprecated It is deprecated and modern browsers return true in all cases.\n\t *\n\t * @param {string} feature\n\t * @param {string} [version]\n\t * @returns {boolean} always true\n\t *\n\t * @see https://developer.mozilla.org/en-US/docs/Web/API/DOMImplementation/hasFeature MDN\n\t * @see https://www.w3.org/TR/REC-DOM-Level-1/level-one-core.html#ID-5CED94D7 DOM Level 1 Core\n\t * @see https://dom.spec.whatwg.org/#dom-domimplementation-hasfeature DOM Living Standard\n\t */\n\thasFeature: function(feature, version) {\n\t\t\treturn true;\n\t},\n\t/**\n\t * Creates an XML Document object of the specified type with its document element.\n\t *\n\t * __It behaves slightly different from the description in the living standard__:\n\t * - There is no interface/class `XMLDocument`, it returns a `Document` instance.\n\t * - `contentType`, `encoding`, `mode`, `origin`, `url` fields are currently not declared.\n\t * - this implementation is not validating names or qualified names\n\t *   (when parsing XML strings, the SAX parser takes care of that)\n\t *\n\t * @param {string|null} namespaceURI\n\t * @param {string} qualifiedName\n\t * @param {DocumentType=null} doctype\n\t * @returns {Document}\n\t *\n\t * @see https://developer.mozilla.org/en-US/docs/Web/API/DOMImplementation/createDocument MDN\n\t * @see https://www.w3.org/TR/DOM-Level-2-Core/core.html#Level-2-Core-DOM-createDocument DOM Level 2 Core (initial)\n\t * @see https://dom.spec.whatwg.org/#dom-domimplementation-createdocument  DOM Level 2 Core\n\t *\n\t * @see https://dom.spec.whatwg.org/#validate-and-extract DOM: Validate and extract\n\t * @see https://www.w3.org/TR/xml/#NT-NameStartChar XML Spec: Names\n\t * @see https://www.w3.org/TR/xml-names/#ns-qualnames XML Namespaces: Qualified names\n\t */\n\tcreateDocument: function(namespaceURI,  qualifiedName, doctype){\n\t\tvar doc = new Document();\n\t\tdoc.implementation = this;\n\t\tdoc.childNodes = new NodeList();\n\t\tdoc.doctype = doctype || null;\n\t\tif (doctype){\n\t\t\tdoc.appendChild(doctype);\n\t\t}\n\t\tif (qualifiedName){\n\t\t\tvar root = doc.createElementNS(namespaceURI, qualifiedName);\n\t\t\tdoc.appendChild(root);\n\t\t}\n\t\treturn doc;\n\t},\n\t/**\n\t * Returns a doctype, with the given `qualifiedName`, `publicId`, and `systemId`.\n\t *\n\t * __This behavior is slightly different from the in the specs__:\n\t * - this implementation is not validating names or qualified names\n\t *   (when parsing XML strings, the SAX parser takes care of that)\n\t *\n\t * @param {string} qualifiedName\n\t * @param {string} [publicId]\n\t * @param {string} [systemId]\n\t * @returns {DocumentType} which can either be used with `DOMImplementation.createDocument` upon document creation\n\t * \t\t\t\t  or can be put into the document via methods like `Node.insertBefore()` or `Node.replaceChild()`\n\t *\n\t * @see https://developer.mozilla.org/en-US/docs/Web/API/DOMImplementation/createDocumentType MDN\n\t * @see https://www.w3.org/TR/DOM-Level-2-Core/core.html#Level-2-Core-DOM-createDocType DOM Level 2 Core\n\t * @see https://dom.spec.whatwg.org/#dom-domimplementation-createdocumenttype DOM Living Standard\n\t *\n\t * @see https://dom.spec.whatwg.org/#validate-and-extract DOM: Validate and extract\n\t * @see https://www.w3.org/TR/xml/#NT-NameStartChar XML Spec: Names\n\t * @see https://www.w3.org/TR/xml-names/#ns-qualnames XML Namespaces: Qualified names\n\t */\n\tcreateDocumentType: function(qualifiedName, publicId, systemId){\n\t\tvar node = new DocumentType();\n\t\tnode.name = qualifiedName;\n\t\tnode.nodeName = qualifiedName;\n\t\tnode.publicId = publicId || '';\n\t\tnode.systemId = systemId || '';\n\n\t\treturn node;\n\t}\n};\n\n\n/**\n * @see http://www.w3.org/TR/2000/REC-DOM-Level-2-Core-20001113/core.html#ID-1950641247\n */\n\nfunction Node() {\n};\n\nNode.prototype = {\n\tfirstChild : null,\n\tlastChild : null,\n\tpreviousSibling : null,\n\tnextSibling : null,\n\tattributes : null,\n\tparentNode : null,\n\tchildNodes : null,\n\townerDocument : null,\n\tnodeValue : null,\n\tnamespaceURI : null,\n\tprefix : null,\n\tlocalName : null,\n\t// Modified in DOM Level 2:\n\tinsertBefore:function(newChild, refChild){//raises \n\t\treturn _insertBefore(this,newChild,refChild);\n\t},\n\treplaceChild:function(newChild, oldChild){//raises \n\t\tthis.insertBefore(newChild,oldChild);\n\t\tif(oldChild){\n\t\t\tthis.removeChild(oldChild);\n\t\t}\n\t},\n\tremoveChild:function(oldChild){\n\t\treturn _removeChild(this,oldChild);\n\t},\n\tappendChild:function(newChild){\n\t\treturn this.insertBefore(newChild,null);\n\t},\n\thasChildNodes:function(){\n\t\treturn this.firstChild != null;\n\t},\n\tcloneNode:function(deep){\n\t\treturn cloneNode(this.ownerDocument||this,this,deep);\n\t},\n\t// Modified in DOM Level 2:\n\tnormalize:function(){\n\t\tvar child = this.firstChild;\n\t\twhile(child){\n\t\t\tvar next = child.nextSibling;\n\t\t\tif(next && next.nodeType == TEXT_NODE && child.nodeType == TEXT_NODE){\n\t\t\t\tthis.removeChild(next);\n\t\t\t\tchild.appendData(next.data);\n\t\t\t}else{\n\t\t\t\tchild.normalize();\n\t\t\t\tchild = next;\n\t\t\t}\n\t\t}\n\t},\n  \t// Introduced in DOM Level 2:\n\tisSupported:function(feature, version){\n\t\treturn this.ownerDocument.implementation.hasFeature(feature,version);\n\t},\n    // Introduced in DOM Level 2:\n    hasAttributes:function(){\n    \treturn this.attributes.length>0;\n    },\n    lookupPrefix:function(namespaceURI){\n    \tvar el = this;\n    \twhile(el){\n    \t\tvar map = el._nsMap;\n    \t\t//console.dir(map)\n    \t\tif(map){\n    \t\t\tfor(var n in map){\n    \t\t\t\tif(map[n] == namespaceURI){\n    \t\t\t\t\treturn n;\n    \t\t\t\t}\n    \t\t\t}\n    \t\t}\n    \t\tel = el.nodeType == ATTRIBUTE_NODE?el.ownerDocument : el.parentNode;\n    \t}\n    \treturn null;\n    },\n    // Introduced in DOM Level 3:\n    lookupNamespaceURI:function(prefix){\n    \tvar el = this;\n    \twhile(el){\n    \t\tvar map = el._nsMap;\n    \t\t//console.dir(map)\n    \t\tif(map){\n    \t\t\tif(prefix in map){\n    \t\t\t\treturn map[prefix] ;\n    \t\t\t}\n    \t\t}\n    \t\tel = el.nodeType == ATTRIBUTE_NODE?el.ownerDocument : el.parentNode;\n    \t}\n    \treturn null;\n    },\n    // Introduced in DOM Level 3:\n    isDefaultNamespace:function(namespaceURI){\n    \tvar prefix = this.lookupPrefix(namespaceURI);\n    \treturn prefix == null;\n    }\n};\n\n\nfunction _xmlEncoder(c){\n\treturn c == '<' && '&lt;' ||\n         c == '>' && '&gt;' ||\n         c == '&' && '&amp;' ||\n         c == '\"' && '&quot;' ||\n         '&#'+c.charCodeAt()+';'\n}\n\n\ncopy(NodeType,Node);\ncopy(NodeType,Node.prototype);\n\n/**\n * @param callback return true for continue,false for break\n * @return boolean true: break visit;\n */\nfunction _visitNode(node,callback){\n\tif(callback(node)){\n\t\treturn true;\n\t}\n\tif(node = node.firstChild){\n\t\tdo{\n\t\t\tif(_visitNode(node,callback)){return true}\n        }while(node=node.nextSibling)\n    }\n}\n\n\n\nfunction Document(){\n}\n\nfunction _onAddAttribute(doc,el,newAttr){\n\tdoc && doc._inc++;\n\tvar ns = newAttr.namespaceURI ;\n\tif(ns === NAMESPACE.XMLNS){\n\t\t//update namespace\n\t\tel._nsMap[newAttr.prefix?newAttr.localName:''] = newAttr.value\n\t}\n}\n\nfunction _onRemoveAttribute(doc,el,newAttr,remove){\n\tdoc && doc._inc++;\n\tvar ns = newAttr.namespaceURI ;\n\tif(ns === NAMESPACE.XMLNS){\n\t\t//update namespace\n\t\tdelete el._nsMap[newAttr.prefix?newAttr.localName:'']\n\t}\n}\n\nfunction _onUpdateChild(doc,el,newChild){\n\tif(doc && doc._inc){\n\t\tdoc._inc++;\n\t\t//update childNodes\n\t\tvar cs = el.childNodes;\n\t\tif(newChild){\n\t\t\tcs[cs.length++] = newChild;\n\t\t}else{\n\t\t\t//console.log(1)\n\t\t\tvar child = el.firstChild;\n\t\t\tvar i = 0;\n\t\t\twhile(child){\n\t\t\t\tcs[i++] = child;\n\t\t\t\tchild =child.nextSibling;\n\t\t\t}\n\t\t\tcs.length = i;\n\t\t}\n\t}\n}\n\n/**\n * attributes;\n * children;\n * \n * writeable properties:\n * nodeValue,Attr:value,CharacterData:data\n * prefix\n */\nfunction _removeChild(parentNode,child){\n\tvar previous = child.previousSibling;\n\tvar next = child.nextSibling;\n\tif(previous){\n\t\tprevious.nextSibling = next;\n\t}else{\n\t\tparentNode.firstChild = next\n\t}\n\tif(next){\n\t\tnext.previousSibling = previous;\n\t}else{\n\t\tparentNode.lastChild = previous;\n\t}\n\t_onUpdateChild(parentNode.ownerDocument,parentNode);\n\treturn child;\n}\n/**\n * preformance key(refChild == null)\n */\nfunction _insertBefore(parentNode,newChild,nextChild){\n\tvar cp = newChild.parentNode;\n\tif(cp){\n\t\tcp.removeChild(newChild);//remove and update\n\t}\n\tif(newChild.nodeType === DOCUMENT_FRAGMENT_NODE){\n\t\tvar newFirst = newChild.firstChild;\n\t\tif (newFirst == null) {\n\t\t\treturn newChild;\n\t\t}\n\t\tvar newLast = newChild.lastChild;\n\t}else{\n\t\tnewFirst = newLast = newChild;\n\t}\n\tvar pre = nextChild ? nextChild.previousSibling : parentNode.lastChild;\n\n\tnewFirst.previousSibling = pre;\n\tnewLast.nextSibling = nextChild;\n\t\n\t\n\tif(pre){\n\t\tpre.nextSibling = newFirst;\n\t}else{\n\t\tparentNode.firstChild = newFirst;\n\t}\n\tif(nextChild == null){\n\t\tparentNode.lastChild = newLast;\n\t}else{\n\t\tnextChild.previousSibling = newLast;\n\t}\n\tdo{\n\t\tnewFirst.parentNode = parentNode;\n\t}while(newFirst !== newLast && (newFirst= newFirst.nextSibling))\n\t_onUpdateChild(parentNode.ownerDocument||parentNode,parentNode);\n\t//console.log(parentNode.lastChild.nextSibling == null)\n\tif (newChild.nodeType == DOCUMENT_FRAGMENT_NODE) {\n\t\tnewChild.firstChild = newChild.lastChild = null;\n\t}\n\treturn newChild;\n}\nfunction _appendSingleChild(parentNode,newChild){\n\tvar cp = newChild.parentNode;\n\tif(cp){\n\t\tvar pre = parentNode.lastChild;\n\t\tcp.removeChild(newChild);//remove and update\n\t\tvar pre = parentNode.lastChild;\n\t}\n\tvar pre = parentNode.lastChild;\n\tnewChild.parentNode = parentNode;\n\tnewChild.previousSibling = pre;\n\tnewChild.nextSibling = null;\n\tif(pre){\n\t\tpre.nextSibling = newChild;\n\t}else{\n\t\tparentNode.firstChild = newChild;\n\t}\n\tparentNode.lastChild = newChild;\n\t_onUpdateChild(parentNode.ownerDocument,parentNode,newChild);\n\treturn newChild;\n\t//console.log(\"__aa\",parentNode.lastChild.nextSibling == null)\n}\nDocument.prototype = {\n\t//implementation : null,\n\tnodeName :  '#document',\n\tnodeType :  DOCUMENT_NODE,\n\t/**\n\t * The DocumentType node of the document.\n\t *\n\t * @readonly\n\t * @type DocumentType\n\t */\n\tdoctype :  null,\n\tdocumentElement :  null,\n\t_inc : 1,\n\n\tinsertBefore :  function(newChild, refChild){//raises\n\t\tif(newChild.nodeType == DOCUMENT_FRAGMENT_NODE){\n\t\t\tvar child = newChild.firstChild;\n\t\t\twhile(child){\n\t\t\t\tvar next = child.nextSibling;\n\t\t\t\tthis.insertBefore(child,refChild);\n\t\t\t\tchild = next;\n\t\t\t}\n\t\t\treturn newChild;\n\t\t}\n\t\tif(this.documentElement == null && newChild.nodeType == ELEMENT_NODE){\n\t\t\tthis.documentElement = newChild;\n\t\t}\n\n\t\treturn _insertBefore(this,newChild,refChild),(newChild.ownerDocument = this),newChild;\n\t},\n\tremoveChild :  function(oldChild){\n\t\tif(this.documentElement == oldChild){\n\t\t\tthis.documentElement = null;\n\t\t}\n\t\treturn _removeChild(this,oldChild);\n\t},\n\t// Introduced in DOM Level 2:\n\timportNode : function(importedNode,deep){\n\t\treturn importNode(this,importedNode,deep);\n\t},\n\t// Introduced in DOM Level 2:\n\tgetElementById :\tfunction(id){\n\t\tvar rtv = null;\n\t\t_visitNode(this.documentElement,function(node){\n\t\t\tif(node.nodeType == ELEMENT_NODE){\n\t\t\t\tif(node.getAttribute('id') == id){\n\t\t\t\t\trtv = node;\n\t\t\t\t\treturn true;\n\t\t\t\t}\n\t\t\t}\n\t\t})\n\t\treturn rtv;\n\t},\n\n\t/**\n\t * The `getElementsByClassName` method of `Document` interface returns an array-like object\n\t * of all child elements which have **all** of the given class name(s).\n\t *\n\t * Returns an empty list if `classeNames` is an empty string or only contains HTML white space characters.\n\t *\n\t *\n\t * Warning: This is a live LiveNodeList.\n\t * Changes in the DOM will reflect in the array as the changes occur.\n\t * If an element selected by this array no longer qualifies for the selector,\n\t * it will automatically be removed. Be aware of this for iteration purposes.\n\t *\n\t * @param {string} classNames is a string representing the class name(s) to match; multiple class names are separated by (ASCII-)whitespace\n\t *\n\t * @see https://developer.mozilla.org/en-US/docs/Web/API/Document/getElementsByClassName\n\t * @see https://dom.spec.whatwg.org/#concept-getelementsbyclassname\n\t */\n\tgetElementsByClassName: function(classNames) {\n\t\tvar classNamesSet = toOrderedSet(classNames)\n\t\treturn new LiveNodeList(this, function(base) {\n\t\t\tvar ls = [];\n\t\t\tif (classNamesSet.length > 0) {\n\t\t\t\t_visitNode(base.documentElement, function(node) {\n\t\t\t\t\tif(node !== base && node.nodeType === ELEMENT_NODE) {\n\t\t\t\t\t\tvar nodeClassNames = node.getAttribute('class')\n\t\t\t\t\t\t// can be null if the attribute does not exist\n\t\t\t\t\t\tif (nodeClassNames) {\n\t\t\t\t\t\t\t// before splitting and iterating just compare them for the most common case\n\t\t\t\t\t\t\tvar matches = classNames === nodeClassNames;\n\t\t\t\t\t\t\tif (!matches) {\n\t\t\t\t\t\t\t\tvar nodeClassNamesSet = toOrderedSet(nodeClassNames)\n\t\t\t\t\t\t\t\tmatches = classNamesSet.every(arrayIncludes(nodeClassNamesSet))\n\t\t\t\t\t\t\t}\n\t\t\t\t\t\t\tif(matches) {\n\t\t\t\t\t\t\t\tls.push(node);\n\t\t\t\t\t\t\t}\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\t\t\t\t});\n\t\t\t}\n\t\t\treturn ls;\n\t\t});\n\t},\n\n\t//document factory method:\n\tcreateElement :\tfunction(tagName){\n\t\tvar node = new Element();\n\t\tnode.ownerDocument = this;\n\t\tnode.nodeName = tagName;\n\t\tnode.tagName = tagName;\n\t\tnode.localName = tagName;\n\t\tnode.childNodes = new NodeList();\n\t\tvar attrs\t= node.attributes = new NamedNodeMap();\n\t\tattrs._ownerElement = node;\n\t\treturn node;\n\t},\n\tcreateDocumentFragment :\tfunction(){\n\t\tvar node = new DocumentFragment();\n\t\tnode.ownerDocument = this;\n\t\tnode.childNodes = new NodeList();\n\t\treturn node;\n\t},\n\tcreateTextNode :\tfunction(data){\n\t\tvar node = new Text();\n\t\tnode.ownerDocument = this;\n\t\tnode.appendData(data)\n\t\treturn node;\n\t},\n\tcreateComment :\tfunction(data){\n\t\tvar node = new Comment();\n\t\tnode.ownerDocument = this;\n\t\tnode.appendData(data)\n\t\treturn node;\n\t},\n\tcreateCDATASection :\tfunction(data){\n\t\tvar node = new CDATASection();\n\t\tnode.ownerDocument = this;\n\t\tnode.appendData(data)\n\t\treturn node;\n\t},\n\tcreateProcessingInstruction :\tfunction(target,data){\n\t\tvar node = new ProcessingInstruction();\n\t\tnode.ownerDocument = this;\n\t\tnode.tagName = node.target = target;\n\t\tnode.nodeValue= node.data = data;\n\t\treturn node;\n\t},\n\tcreateAttribute :\tfunction(name){\n\t\tvar node = new Attr();\n\t\tnode.ownerDocument\t= this;\n\t\tnode.name = name;\n\t\tnode.nodeName\t= name;\n\t\tnode.localName = name;\n\t\tnode.specified = true;\n\t\treturn node;\n\t},\n\tcreateEntityReference :\tfunction(name){\n\t\tvar node = new EntityReference();\n\t\tnode.ownerDocument\t= this;\n\t\tnode.nodeName\t= name;\n\t\treturn node;\n\t},\n\t// Introduced in DOM Level 2:\n\tcreateElementNS :\tfunction(namespaceURI,qualifiedName){\n\t\tvar node = new Element();\n\t\tvar pl = qualifiedName.split(':');\n\t\tvar attrs\t= node.attributes = new NamedNodeMap();\n\t\tnode.childNodes = new NodeList();\n\t\tnode.ownerDocument = this;\n\t\tnode.nodeName = qualifiedName;\n\t\tnode.tagName = qualifiedName;\n\t\tnode.namespaceURI = namespaceURI;\n\t\tif(pl.length == 2){\n\t\t\tnode.prefix = pl[0];\n\t\t\tnode.localName = pl[1];\n\t\t}else{\n\t\t\t//el.prefix = null;\n\t\t\tnode.localName = qualifiedName;\n\t\t}\n\t\tattrs._ownerElement = node;\n\t\treturn node;\n\t},\n\t// Introduced in DOM Level 2:\n\tcreateAttributeNS :\tfunction(namespaceURI,qualifiedName){\n\t\tvar node = new Attr();\n\t\tvar pl = qualifiedName.split(':');\n\t\tnode.ownerDocument = this;\n\t\tnode.nodeName = qualifiedName;\n\t\tnode.name = qualifiedName;\n\t\tnode.namespaceURI = namespaceURI;\n\t\tnode.specified = true;\n\t\tif(pl.length == 2){\n\t\t\tnode.prefix = pl[0];\n\t\t\tnode.localName = pl[1];\n\t\t}else{\n\t\t\t//el.prefix = null;\n\t\t\tnode.localName = qualifiedName;\n\t\t}\n\t\treturn node;\n\t}\n};\n_extends(Document,Node);\n\n\nfunction Element() {\n\tthis._nsMap = {};\n};\nElement.prototype = {\n\tnodeType : ELEMENT_NODE,\n\thasAttribute : function(name){\n\t\treturn this.getAttributeNode(name)!=null;\n\t},\n\tgetAttribute : function(name){\n\t\tvar attr = this.getAttributeNode(name);\n\t\treturn attr && attr.value || '';\n\t},\n\tgetAttributeNode : function(name){\n\t\treturn this.attributes.getNamedItem(name);\n\t},\n\tsetAttribute : function(name, value){\n\t\tvar attr = this.ownerDocument.createAttribute(name);\n\t\tattr.value = attr.nodeValue = \"\" + value;\n\t\tthis.setAttributeNode(attr)\n\t},\n\tremoveAttribute : function(name){\n\t\tvar attr = this.getAttributeNode(name)\n\t\tattr && this.removeAttributeNode(attr);\n\t},\n\t\n\t//four real opeartion method\n\tappendChild:function(newChild){\n\t\tif(newChild.nodeType === DOCUMENT_FRAGMENT_NODE){\n\t\t\treturn this.insertBefore(newChild,null);\n\t\t}else{\n\t\t\treturn _appendSingleChild(this,newChild);\n\t\t}\n\t},\n\tsetAttributeNode : function(newAttr){\n\t\treturn this.attributes.setNamedItem(newAttr);\n\t},\n\tsetAttributeNodeNS : function(newAttr){\n\t\treturn this.attributes.setNamedItemNS(newAttr);\n\t},\n\tremoveAttributeNode : function(oldAttr){\n\t\t//console.log(this == oldAttr.ownerElement)\n\t\treturn this.attributes.removeNamedItem(oldAttr.nodeName);\n\t},\n\t//get real attribute name,and remove it by removeAttributeNode\n\tremoveAttributeNS : function(namespaceURI, localName){\n\t\tvar old = this.getAttributeNodeNS(namespaceURI, localName);\n\t\told && this.removeAttributeNode(old);\n\t},\n\t\n\thasAttributeNS : function(namespaceURI, localName){\n\t\treturn this.getAttributeNodeNS(namespaceURI, localName)!=null;\n\t},\n\tgetAttributeNS : function(namespaceURI, localName){\n\t\tvar attr = this.getAttributeNodeNS(namespaceURI, localName);\n\t\treturn attr && attr.value || '';\n\t},\n\tsetAttributeNS : function(namespaceURI, qualifiedName, value){\n\t\tvar attr = this.ownerDocument.createAttributeNS(namespaceURI, qualifiedName);\n\t\tattr.value = attr.nodeValue = \"\" + value;\n\t\tthis.setAttributeNode(attr)\n\t},\n\tgetAttributeNodeNS : function(namespaceURI, localName){\n\t\treturn this.attributes.getNamedItemNS(namespaceURI, localName);\n\t},\n\t\n\tgetElementsByTagName : function(tagName){\n\t\treturn new LiveNodeList(this,function(base){\n\t\t\tvar ls = [];\n\t\t\t_visitNode(base,function(node){\n\t\t\t\tif(node !== base && node.nodeType == ELEMENT_NODE && (tagName === '*' || node.tagName == tagName)){\n\t\t\t\t\tls.push(node);\n\t\t\t\t}\n\t\t\t});\n\t\t\treturn ls;\n\t\t});\n\t},\n\tgetElementsByTagNameNS : function(namespaceURI, localName){\n\t\treturn new LiveNodeList(this,function(base){\n\t\t\tvar ls = [];\n\t\t\t_visitNode(base,function(node){\n\t\t\t\tif(node !== base && node.nodeType === ELEMENT_NODE && (namespaceURI === '*' || node.namespaceURI === namespaceURI) && (localName === '*' || node.localName == localName)){\n\t\t\t\t\tls.push(node);\n\t\t\t\t}\n\t\t\t});\n\t\t\treturn ls;\n\t\t\t\n\t\t});\n\t}\n};\nDocument.prototype.getElementsByTagName = Element.prototype.getElementsByTagName;\nDocument.prototype.getElementsByTagNameNS = Element.prototype.getElementsByTagNameNS;\n\n\n_extends(Element,Node);\nfunction Attr() {\n};\nAttr.prototype.nodeType = ATTRIBUTE_NODE;\n_extends(Attr,Node);\n\n\nfunction CharacterData() {\n};\nCharacterData.prototype = {\n\tdata : '',\n\tsubstringData : function(offset, count) {\n\t\treturn this.data.substring(offset, offset+count);\n\t},\n\tappendData: function(text) {\n\t\ttext = this.data+text;\n\t\tthis.nodeValue = this.data = text;\n\t\tthis.length = text.length;\n\t},\n\tinsertData: function(offset,text) {\n\t\tthis.replaceData(offset,0,text);\n\t\n\t},\n\tappendChild:function(newChild){\n\t\tthrow new Error(ExceptionMessage[HIERARCHY_REQUEST_ERR])\n\t},\n\tdeleteData: function(offset, count) {\n\t\tthis.replaceData(offset,count,\"\");\n\t},\n\treplaceData: function(offset, count, text) {\n\t\tvar start = this.data.substring(0,offset);\n\t\tvar end = this.data.substring(offset+count);\n\t\ttext = start + text + end;\n\t\tthis.nodeValue = this.data = text;\n\t\tthis.length = text.length;\n\t}\n}\n_extends(CharacterData,Node);\nfunction Text() {\n};\nText.prototype = {\n\tnodeName : \"#text\",\n\tnodeType : TEXT_NODE,\n\tsplitText : function(offset) {\n\t\tvar text = this.data;\n\t\tvar newText = text.substring(offset);\n\t\ttext = text.substring(0, offset);\n\t\tthis.data = this.nodeValue = text;\n\t\tthis.length = text.length;\n\t\tvar newNode = this.ownerDocument.createTextNode(newText);\n\t\tif(this.parentNode){\n\t\t\tthis.parentNode.insertBefore(newNode, this.nextSibling);\n\t\t}\n\t\treturn newNode;\n\t}\n}\n_extends(Text,CharacterData);\nfunction Comment() {\n};\nComment.prototype = {\n\tnodeName : \"#comment\",\n\tnodeType : COMMENT_NODE\n}\n_extends(Comment,CharacterData);\n\nfunction CDATASection() {\n};\nCDATASection.prototype = {\n\tnodeName : \"#cdata-section\",\n\tnodeType : CDATA_SECTION_NODE\n}\n_extends(CDATASection,CharacterData);\n\n\nfunction DocumentType() {\n};\nDocumentType.prototype.nodeType = DOCUMENT_TYPE_NODE;\n_extends(DocumentType,Node);\n\nfunction Notation() {\n};\nNotation.prototype.nodeType = NOTATION_NODE;\n_extends(Notation,Node);\n\nfunction Entity() {\n};\nEntity.prototype.nodeType = ENTITY_NODE;\n_extends(Entity,Node);\n\nfunction EntityReference() {\n};\nEntityReference.prototype.nodeType = ENTITY_REFERENCE_NODE;\n_extends(EntityReference,Node);\n\nfunction DocumentFragment() {\n};\nDocumentFragment.prototype.nodeName =\t\"#document-fragment\";\nDocumentFragment.prototype.nodeType =\tDOCUMENT_FRAGMENT_NODE;\n_extends(DocumentFragment,Node);\n\n\nfunction ProcessingInstruction() {\n}\nProcessingInstruction.prototype.nodeType = PROCESSING_INSTRUCTION_NODE;\n_extends(ProcessingInstruction,Node);\nfunction XMLSerializer(){}\nXMLSerializer.prototype.serializeToString = function(node,isHtml,nodeFilter){\n\treturn nodeSerializeToString.call(node,isHtml,nodeFilter);\n}\nNode.prototype.toString = nodeSerializeToString;\nfunction nodeSerializeToString(isHtml,nodeFilter){\n\tvar buf = [];\n\tvar refNode = this.nodeType == 9 && this.documentElement || this;\n\tvar prefix = refNode.prefix;\n\tvar uri = refNode.namespaceURI;\n\t\n\tif(uri && prefix == null){\n\t\t//console.log(prefix)\n\t\tvar prefix = refNode.lookupPrefix(uri);\n\t\tif(prefix == null){\n\t\t\t//isHTML = true;\n\t\t\tvar visibleNamespaces=[\n\t\t\t{namespace:uri,prefix:null}\n\t\t\t//{namespace:uri,prefix:''}\n\t\t\t]\n\t\t}\n\t}\n\tserializeToString(this,buf,isHtml,nodeFilter,visibleNamespaces);\n\t//console.log('###',this.nodeType,uri,prefix,buf.join(''))\n\treturn buf.join('');\n}\n\nfunction needNamespaceDefine(node, isHTML, visibleNamespaces) {\n\tvar prefix = node.prefix || '';\n\tvar uri = node.namespaceURI;\n\t// According to [Namespaces in XML 1.0](https://www.w3.org/TR/REC-xml-names/#ns-using) ,\n\t// and more specifically https://www.w3.org/TR/REC-xml-names/#nsc-NoPrefixUndecl :\n\t// > In a namespace declaration for a prefix [...], the attribute value MUST NOT be empty.\n\t// in a similar manner [Namespaces in XML 1.1](https://www.w3.org/TR/xml-names11/#ns-using)\n\t// and more specifically https://www.w3.org/TR/xml-names11/#nsc-NSDeclared :\n\t// > [...] Furthermore, the attribute value [...] must not be an empty string.\n\t// so serializing empty namespace value like xmlns:ds=\"\" would produce an invalid XML document.\n\tif (!uri) {\n\t\treturn false;\n\t}\n\tif (prefix === \"xml\" && uri === NAMESPACE.XML || uri === NAMESPACE.XMLNS) {\n\t\treturn false;\n\t}\n\t\n\tvar i = visibleNamespaces.length \n\twhile (i--) {\n\t\tvar ns = visibleNamespaces[i];\n\t\t// get namespace prefix\n\t\tif (ns.prefix === prefix) {\n\t\t\treturn ns.namespace !== uri;\n\t\t}\n\t}\n\treturn true;\n}\n/**\n * Well-formed constraint: No < in Attribute Values\n * The replacement text of any entity referred to directly or indirectly in an attribute value must not contain a <.\n * @see https://www.w3.org/TR/xml/#CleanAttrVals\n * @see https://www.w3.org/TR/xml/#NT-AttValue\n */\nfunction addSerializedAttribute(buf, qualifiedName, value) {\n\tbuf.push(' ', qualifiedName, '=\"', value.replace(/[<&\"]/g,_xmlEncoder), '\"')\n}\n\nfunction serializeToString(node,buf,isHTML,nodeFilter,visibleNamespaces){\n\tif (!visibleNamespaces) {\n\t\tvisibleNamespaces = [];\n\t}\n\n\tif(nodeFilter){\n\t\tnode = nodeFilter(node);\n\t\tif(node){\n\t\t\tif(typeof node == 'string'){\n\t\t\t\tbuf.push(node);\n\t\t\t\treturn;\n\t\t\t}\n\t\t}else{\n\t\t\treturn;\n\t\t}\n\t\t//buf.sort.apply(attrs, attributeSorter);\n\t}\n\n\tswitch(node.nodeType){\n\tcase ELEMENT_NODE:\n\t\tvar attrs = node.attributes;\n\t\tvar len = attrs.length;\n\t\tvar child = node.firstChild;\n\t\tvar nodeName = node.tagName;\n\t\t\n\t\tisHTML = NAMESPACE.isHTML(node.namespaceURI) || isHTML\n\n\t\tvar prefixedNodeName = nodeName\n\t\tif (!isHTML && !node.prefix && node.namespaceURI) {\n\t\t\tvar defaultNS\n\t\t\tfor (var ai = 0; ai < attrs.length; ai++) {\n\t\t\t\tif (attrs.item(ai).name === 'xmlns') {\n\t\t\t\t\tdefaultNS = attrs.item(ai).value\n\t\t\t\t\tbreak\n\t\t\t\t}\n\t\t\t}\n\t\t\tif (defaultNS !== node.namespaceURI) {\n\t\t\t\tfor (var nsi = visibleNamespaces.length - 1; nsi >= 0; nsi--) {\n\t\t\t\t\tvar namespace = visibleNamespaces[nsi]\n\t\t\t\t\tif (namespace.namespace === node.namespaceURI) {\n\t\t\t\t\t\tif (namespace.prefix) {\n\t\t\t\t\t\t\tprefixedNodeName = namespace.prefix + ':' + nodeName\n\t\t\t\t\t\t}\n\t\t\t\t\t\tbreak\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\tbuf.push('<', prefixedNodeName);\n\n\t\tfor(var i=0;i<len;i++){\n\t\t\t// add namespaces for attributes\n\t\t\tvar attr = attrs.item(i);\n\t\t\tif (attr.prefix == 'xmlns') {\n\t\t\t\tvisibleNamespaces.push({ prefix: attr.localName, namespace: attr.value });\n\t\t\t}else if(attr.nodeName == 'xmlns'){\n\t\t\t\tvisibleNamespaces.push({ prefix: '', namespace: attr.value });\n\t\t\t}\n\t\t}\n\n\t\tfor(var i=0;i<len;i++){\n\t\t\tvar attr = attrs.item(i);\n\t\t\tif (needNamespaceDefine(attr,isHTML, visibleNamespaces)) {\n\t\t\t\tvar prefix = attr.prefix||'';\n\t\t\t\tvar uri = attr.namespaceURI;\n\t\t\t\taddSerializedAttribute(buf, prefix ? 'xmlns:' + prefix : \"xmlns\", uri);\n\t\t\t\tvisibleNamespaces.push({ prefix: prefix, namespace:uri });\n\t\t\t}\n\t\t\tserializeToString(attr,buf,isHTML,nodeFilter,visibleNamespaces);\n\t\t}\n\n\t\t// add namespace for current node\t\t\n\t\tif (nodeName === prefixedNodeName && needNamespaceDefine(node, isHTML, visibleNamespaces)) {\n\t\t\tvar prefix = node.prefix||'';\n\t\t\tvar uri = node.namespaceURI;\n\t\t\taddSerializedAttribute(buf, prefix ? 'xmlns:' + prefix : \"xmlns\", uri);\n\t\t\tvisibleNamespaces.push({ prefix: prefix, namespace:uri });\n\t\t}\n\t\t\n\t\tif(child || isHTML && !/^(?:meta|link|img|br|hr|input)$/i.test(nodeName)){\n\t\t\tbuf.push('>');\n\t\t\t//if is cdata child node\n\t\t\tif(isHTML && /^script$/i.test(nodeName)){\n\t\t\t\twhile(child){\n\t\t\t\t\tif(child.data){\n\t\t\t\t\t\tbuf.push(child.data);\n\t\t\t\t\t}else{\n\t\t\t\t\t\tserializeToString(child, buf, isHTML, nodeFilter, visibleNamespaces.slice());\n\t\t\t\t\t}\n\t\t\t\t\tchild = child.nextSibling;\n\t\t\t\t}\n\t\t\t}else\n\t\t\t{\n\t\t\t\twhile(child){\n\t\t\t\t\tserializeToString(child, buf, isHTML, nodeFilter, visibleNamespaces.slice());\n\t\t\t\t\tchild = child.nextSibling;\n\t\t\t\t}\n\t\t\t}\n\t\t\tbuf.push('</',prefixedNodeName,'>');\n\t\t}else{\n\t\t\tbuf.push('/>');\n\t\t}\n\t\t// remove added visible namespaces\n\t\t//visibleNamespaces.length = startVisibleNamespaces;\n\t\treturn;\n\tcase DOCUMENT_NODE:\n\tcase DOCUMENT_FRAGMENT_NODE:\n\t\tvar child = node.firstChild;\n\t\twhile(child){\n\t\t\tserializeToString(child, buf, isHTML, nodeFilter, visibleNamespaces.slice());\n\t\t\tchild = child.nextSibling;\n\t\t}\n\t\treturn;\n\tcase ATTRIBUTE_NODE:\n\t\treturn addSerializedAttribute(buf, node.name, node.value);\n\tcase TEXT_NODE:\n\t\t/**\n\t\t * The ampersand character (&) and the left angle bracket (<) must not appear in their literal form,\n\t\t * except when used as markup delimiters, or within a comment, a processing instruction, or a CDATA section.\n\t\t * If they are needed elsewhere, they must be escaped using either numeric character references or the strings\n\t\t * `&amp;` and `&lt;` respectively.\n\t\t * The right angle bracket (>) may be represented using the string \" &gt; \", and must, for compatibility,\n\t\t * be escaped using either `&gt;` or a character reference when it appears in the string `]]>` in content,\n\t\t * when that string is not marking the end of a CDATA section.\n\t\t *\n\t\t * In the content of elements, character data is any string of characters\n\t\t * which does not contain the start-delimiter of any markup\n\t\t * and does not include the CDATA-section-close delimiter, `]]>`.\n\t\t *\n\t\t * @see https://www.w3.org/TR/xml/#NT-CharData\n\t\t */\n\t\treturn buf.push(node.data\n\t\t\t.replace(/[<&]/g,_xmlEncoder)\n\t\t\t.replace(/]]>/g, ']]&gt;')\n\t\t);\n\tcase CDATA_SECTION_NODE:\n\t\treturn buf.push( '<![CDATA[',node.data,']]>');\n\tcase COMMENT_NODE:\n\t\treturn buf.push( \"<!--\",node.data,\"-->\");\n\tcase DOCUMENT_TYPE_NODE:\n\t\tvar pubid = node.publicId;\n\t\tvar sysid = node.systemId;\n\t\tbuf.push('<!DOCTYPE ',node.name);\n\t\tif(pubid){\n\t\t\tbuf.push(' PUBLIC ', pubid);\n\t\t\tif (sysid && sysid!='.') {\n\t\t\t\tbuf.push(' ', sysid);\n\t\t\t}\n\t\t\tbuf.push('>');\n\t\t}else if(sysid && sysid!='.'){\n\t\t\tbuf.push(' SYSTEM ', sysid, '>');\n\t\t}else{\n\t\t\tvar sub = node.internalSubset;\n\t\t\tif(sub){\n\t\t\t\tbuf.push(\" [\",sub,\"]\");\n\t\t\t}\n\t\t\tbuf.push(\">\");\n\t\t}\n\t\treturn;\n\tcase PROCESSING_INSTRUCTION_NODE:\n\t\treturn buf.push( \"<?\",node.target,\" \",node.data,\"?>\");\n\tcase ENTITY_REFERENCE_NODE:\n\t\treturn buf.push( '&',node.nodeName,';');\n\t//case ENTITY_NODE:\n\t//case NOTATION_NODE:\n\tdefault:\n\t\tbuf.push('??',node.nodeName);\n\t}\n}\nfunction importNode(doc,node,deep){\n\tvar node2;\n\tswitch (node.nodeType) {\n\tcase ELEMENT_NODE:\n\t\tnode2 = node.cloneNode(false);\n\t\tnode2.ownerDocument = doc;\n\t\t//var attrs = node2.attributes;\n\t\t//var len = attrs.length;\n\t\t//for(var i=0;i<len;i++){\n\t\t\t//node2.setAttributeNodeNS(importNode(doc,attrs.item(i),deep));\n\t\t//}\n\tcase DOCUMENT_FRAGMENT_NODE:\n\t\tbreak;\n\tcase ATTRIBUTE_NODE:\n\t\tdeep = true;\n\t\tbreak;\n\t//case ENTITY_REFERENCE_NODE:\n\t//case PROCESSING_INSTRUCTION_NODE:\n\t////case TEXT_NODE:\n\t//case CDATA_SECTION_NODE:\n\t//case COMMENT_NODE:\n\t//\tdeep = false;\n\t//\tbreak;\n\t//case DOCUMENT_NODE:\n\t//case DOCUMENT_TYPE_NODE:\n\t//cannot be imported.\n\t//case ENTITY_NODE:\n\t//case NOTATION_NODE：\n\t//can not hit in level3\n\t//default:throw e;\n\t}\n\tif(!node2){\n\t\tnode2 = node.cloneNode(false);//false\n\t}\n\tnode2.ownerDocument = doc;\n\tnode2.parentNode = null;\n\tif(deep){\n\t\tvar child = node.firstChild;\n\t\twhile(child){\n\t\t\tnode2.appendChild(importNode(doc,child,deep));\n\t\t\tchild = child.nextSibling;\n\t\t}\n\t}\n\treturn node2;\n}\n//\n//var _relationMap = {firstChild:1,lastChild:1,previousSibling:1,nextSibling:1,\n//\t\t\t\t\tattributes:1,childNodes:1,parentNode:1,documentElement:1,doctype,};\nfunction cloneNode(doc,node,deep){\n\tvar node2 = new node.constructor();\n\tfor(var n in node){\n\t\tvar v = node[n];\n\t\tif(typeof v != 'object' ){\n\t\t\tif(v != node2[n]){\n\t\t\t\tnode2[n] = v;\n\t\t\t}\n\t\t}\n\t}\n\tif(node.childNodes){\n\t\tnode2.childNodes = new NodeList();\n\t}\n\tnode2.ownerDocument = doc;\n\tswitch (node2.nodeType) {\n\tcase ELEMENT_NODE:\n\t\tvar attrs\t= node.attributes;\n\t\tvar attrs2\t= node2.attributes = new NamedNodeMap();\n\t\tvar len = attrs.length\n\t\tattrs2._ownerElement = node2;\n\t\tfor(var i=0;i<len;i++){\n\t\t\tnode2.setAttributeNode(cloneNode(doc,attrs.item(i),true));\n\t\t}\n\t\tbreak;;\n\tcase ATTRIBUTE_NODE:\n\t\tdeep = true;\n\t}\n\tif(deep){\n\t\tvar child = node.firstChild;\n\t\twhile(child){\n\t\t\tnode2.appendChild(cloneNode(doc,child,deep));\n\t\t\tchild = child.nextSibling;\n\t\t}\n\t}\n\treturn node2;\n}\n\nfunction __set__(object,key,value){\n\tobject[key] = value\n}\n//do dynamic\ntry{\n\tif(Object.defineProperty){\n\t\tObject.defineProperty(LiveNodeList.prototype,'length',{\n\t\t\tget:function(){\n\t\t\t\t_updateLiveList(this);\n\t\t\t\treturn this.$$length;\n\t\t\t}\n\t\t});\n\n\t\tObject.defineProperty(Node.prototype,'textContent',{\n\t\t\tget:function(){\n\t\t\t\treturn getTextContent(this);\n\t\t\t},\n\n\t\t\tset:function(data){\n\t\t\t\tswitch(this.nodeType){\n\t\t\t\tcase ELEMENT_NODE:\n\t\t\t\tcase DOCUMENT_FRAGMENT_NODE:\n\t\t\t\t\twhile(this.firstChild){\n\t\t\t\t\t\tthis.removeChild(this.firstChild);\n\t\t\t\t\t}\n\t\t\t\t\tif(data || String(data)){\n\t\t\t\t\t\tthis.appendChild(this.ownerDocument.createTextNode(data));\n\t\t\t\t\t}\n\t\t\t\t\tbreak;\n\n\t\t\t\tdefault:\n\t\t\t\t\tthis.data = data;\n\t\t\t\t\tthis.value = data;\n\t\t\t\t\tthis.nodeValue = data;\n\t\t\t\t}\n\t\t\t}\n\t\t})\n\t\t\n\t\tfunction getTextContent(node){\n\t\t\tswitch(node.nodeType){\n\t\t\tcase ELEMENT_NODE:\n\t\t\tcase DOCUMENT_FRAGMENT_NODE:\n\t\t\t\tvar buf = [];\n\t\t\t\tnode = node.firstChild;\n\t\t\t\twhile(node){\n\t\t\t\t\tif(node.nodeType!==7 && node.nodeType !==8){\n\t\t\t\t\t\tbuf.push(getTextContent(node));\n\t\t\t\t\t}\n\t\t\t\t\tnode = node.nextSibling;\n\t\t\t\t}\n\t\t\t\treturn buf.join('');\n\t\t\tdefault:\n\t\t\t\treturn node.nodeValue;\n\t\t\t}\n\t\t}\n\n\t\t__set__ = function(object,key,value){\n\t\t\t//console.log(value)\n\t\t\tobject['$$'+key] = value\n\t\t}\n\t}\n}catch(e){//ie8\n}\n\n//if(typeof require == 'function'){\n\texports.DocumentType = DocumentType;\n\texports.DOMException = DOMException;\n\texports.DOMImplementation = DOMImplementation;\n\texports.Element = Element;\n\texports.Node = Node;\n\texports.NodeList = NodeList;\n\texports.XMLSerializer = XMLSerializer;\n//}\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _CommonEncryption=require('./../CommonEncryption');var _CommonEncryption2=_interopRequireDefault(_CommonEncryption);var _KeySystemClearKey=require('./../drm/KeySystemClearKey');var _KeySystemClearKey2=_interopRequireDefault(_KeySystemClearKey);var _KeySystemW3CClearKey=require('./../drm/KeySystemW3CClearKey');var _KeySystemW3CClearKey2=_interopRequireDefault(_KeySystemW3CClearKey);var _KeySystemWidevine=require('./../drm/KeySystemWidevine');var _KeySystemWidevine2=_interopRequireDefault(_KeySystemWidevine);var _KeySystemPlayReady=require('./../drm/KeySystemPlayReady');var _KeySystemPlayReady2=_interopRequireDefault(_KeySystemPlayReady);var _DRMToday=require('./../servers/DRMToday');var _DRMToday2=_interopRequireDefault(_DRMToday);var _PlayReady=require('./../servers/PlayReady');var _PlayReady2=_interopRequireDefault(_PlayReady);var _Widevine=require('./../servers/Widevine');var _Widevine2=_interopRequireDefault(_Widevine);var _ClearKey=require('./../servers/ClearKey');var _ClearKey2=_interopRequireDefault(_ClearKey);var _ProtectionConstants=require('../../constants/ProtectionConstants');var _ProtectionConstants2=_interopRequireDefault(_ProtectionConstants);function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}/**\n * @module ProtectionKeyController\n * @ignore\n * @description Media protection key system functionality that can be modified/overridden by applications\n *//**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n */function ProtectionKeyController(){var context=this.context;var instance=void 0,debug=void 0,logger=void 0,keySystems=void 0,BASE64=void 0,clearkeyKeySystem=void 0,clearkeyW3CKeySystem=void 0;function setConfig(config){if(!config)return;if(config.debug){debug=config.debug;logger=debug.getLogger(instance);}if(config.BASE64){BASE64=config.BASE64;}}function initialize(){keySystems=[];var keySystem=void 0;// PlayReady\nkeySystem=(0,_KeySystemPlayReady2.default)(context).getInstance({BASE64:BASE64});keySystems.push(keySystem);// Widevine\nkeySystem=(0,_KeySystemWidevine2.default)(context).getInstance({BASE64:BASE64});keySystems.push(keySystem);// ClearKey\nkeySystem=(0,_KeySystemClearKey2.default)(context).getInstance({BASE64:BASE64});keySystems.push(keySystem);clearkeyKeySystem=keySystem;// W3C ClearKey\nkeySystem=(0,_KeySystemW3CClearKey2.default)(context).getInstance({BASE64:BASE64,debug:debug});keySystems.push(keySystem);clearkeyW3CKeySystem=keySystem;}/**\n     * Returns a prioritized list of key systems supported\n     * by this player (not necessarily those supported by the\n     * user agent)\n     *\n     * @returns {Array.<KeySystem>} a prioritized\n     * list of key systems\n     * @memberof module:ProtectionKeyController\n     * @instance\n     */function getKeySystems(){return keySystems;}/**\n     * Sets the prioritized list of key systems to be supported\n     * by this player.\n     *\n     * @param {Array.<KeySystem>} newKeySystems the new prioritized\n     * list of key systems\n     * @memberof module:ProtectionKeyController\n     * @instance\n     */function setKeySystems(newKeySystems){keySystems=newKeySystems;}/**\n     * Returns the key system associated with the given key system string\n     * name (i.e. 'org.w3.clearkey')\n     *\n     * @param {string} systemString the system string\n     * @returns {KeySystem|null} the key system\n     * or null if no supported key system is associated with the given key\n     * system string\n     * @memberof module:ProtectionKeyController\n     * @instance\n     */function getKeySystemBySystemString(systemString){for(var i=0;i<keySystems.length;i++){if(keySystems[i].systemString===systemString){return keySystems[i];}}return null;}/**\n     * Determines whether the given key system is ClearKey.  This is\n     * necessary because the EME spec defines ClearKey and its method\n     * for providing keys to the key session; and this method has changed\n     * between the various API versions.  Our EME-specific ProtectionModels\n     * must know if the system is ClearKey so that it can format the keys\n     * according to the particular spec version.\n     *\n     * @param {Object} keySystem the key\n     * @returns {boolean} true if this is the ClearKey key system, false\n     * otherwise\n     * @memberof module:ProtectionKeyController\n     * @instance\n     */function isClearKey(keySystem){return keySystem===clearkeyKeySystem||keySystem===clearkeyW3CKeySystem;}/**\n     * Check equality of initData array buffers.\n     *\n     * @param {ArrayBuffer} initData1 - first initData\n     * @param {ArrayBuffer} initData2 - second initData\n     * @returns {boolean} true if the initData arrays are equal in size and\n     * contents, false otherwise\n     * @memberof module:ProtectionKeyController\n     * @instance\n     */function initDataEquals(initData1,initData2){if(initData1.byteLength===initData2.byteLength){var data1=new Uint8Array(initData1);var data2=new Uint8Array(initData2);for(var j=0;j<data1.length;j++){if(data1[j]!==data2[j]){return false;}}return true;}return false;}/**\n     * Returns a set of supported key systems and CENC initialization data\n     * from the given array of ContentProtection elements.  Only\n     * key systems that are supported by this player will be returned.\n     * Key systems are returned in priority order (highest first).\n     *\n     * @param {Array.<Object>} cps - array of content protection elements parsed\n     * from the manifest\n     * @returns {Array.<Object>} array of objects indicating which supported key\n     * systems were found.  Empty array is returned if no\n     * supported key systems were found\n     * @memberof module:ProtectionKeyController\n     * @instance\n     */function getSupportedKeySystemsFromContentProtection(cps){var cp=void 0,ks=void 0,ksIdx=void 0,cpIdx=void 0;var supportedKS=[];if(cps){for(ksIdx=0;ksIdx<keySystems.length;++ksIdx){ks=keySystems[ksIdx];for(cpIdx=0;cpIdx<cps.length;++cpIdx){cp=cps[cpIdx];if(cp.schemeIdUri.toLowerCase()===ks.schemeIdURI){// Look for DRM-specific ContentProtection\nvar initData=ks.getInitData(cp);supportedKS.push({ks:keySystems[ksIdx],initData:initData,cdmData:ks.getCDMData(),sessionId:ks.getSessionId(cp)});}}}}return supportedKS;}/**\n     * Returns key systems supported by this player for the given PSSH\n     * initializationData. Only key systems supported by this player\n     * that have protection data present will be returned.  Key systems are returned in priority order\n     * (highest priority first)\n     *\n     * @param {ArrayBuffer} initData Concatenated PSSH data for all DRMs\n     * supported by the content\n     * @param {ProtectionData} protDataSet user specified protection data - license server url etc\n     * supported by the content\n     * @returns {Array.<Object>} array of objects indicating which supported key\n     * systems were found.  Empty array is returned if no\n     * supported key systems were found\n     * @memberof module:ProtectionKeyController\n     * @instance\n     */function getSupportedKeySystems(initData,protDataSet){var supportedKS=[];var pssh=_CommonEncryption2.default.parsePSSHList(initData);var ks=void 0,keySystemString=void 0,shouldNotFilterOutKeySystem=void 0;for(var ksIdx=0;ksIdx<keySystems.length;++ksIdx){ks=keySystems[ksIdx];keySystemString=ks.systemString;shouldNotFilterOutKeySystem=protDataSet?keySystemString in protDataSet:true;if(ks.uuid in pssh&&shouldNotFilterOutKeySystem){supportedKS.push({ks:ks,initData:pssh[ks.uuid],cdmData:ks.getCDMData(),sessionId:ks.getSessionId()});}}return supportedKS;}/**\n     * Returns the license server implementation data that should be used for this request.\n     *\n     * @param {KeySystem} keySystem the key system\n     * associated with this license request\n     * @param {ProtectionData} protData protection data to use for the\n     * request\n     * @param {string} [messageType=\"license-request\"] the message type associated with this\n     * request.  Supported message types can be found\n     * {@link https://w3c.github.io/encrypted-media/#idl-def-MediaKeyMessageType|here}.\n     * @returns {LicenseServer|null} the license server\n     * implementation that should be used for this request or null if the player should not\n     * pass messages of the given type to a license server\n     * @memberof module:ProtectionKeyController\n     * @instance\n     *\n     */function getLicenseServer(keySystem,protData,messageType){// Our default server implementations do not do anything with \"license-release\" or\n// \"individualization-request\" messages, so we just send a success event\nif(messageType==='license-release'||messageType==='individualization-request'){return null;}var licenseServerData=null;if(protData&&protData.hasOwnProperty('drmtoday')){licenseServerData=(0,_DRMToday2.default)(context).getInstance({BASE64:BASE64});}else if(keySystem.systemString===_ProtectionConstants2.default.WIDEVINE_KEYSTEM_STRING){licenseServerData=(0,_Widevine2.default)(context).getInstance();}else if(keySystem.systemString===_ProtectionConstants2.default.PLAYREADY_KEYSTEM_STRING){licenseServerData=(0,_PlayReady2.default)(context).getInstance();}else if(keySystem.systemString===_ProtectionConstants2.default.CLEARKEY_KEYSTEM_STRING){licenseServerData=(0,_ClearKey2.default)(context).getInstance();}return licenseServerData;}/**\n     * Allows application-specific retrieval of ClearKey keys.\n     *\n     * @param {KeySystem} clearkeyKeySystem They exact ClearKey System to be used\n     * @param {ProtectionData} protData protection data to use for the\n     * request\n     * @param {ArrayBuffer} message the key message from the CDM\n     * @return {ClearKeyKeySet|null} the clear keys associated with\n     * the request or null if no keys can be returned by this function\n     * @memberof module:ProtectionKeyController\n     * @instance\n     */function processClearKeyLicenseRequest(clearkeyKeySystem,protData,message){try{return clearkeyKeySystem.getClearKeysFromProtectionData(protData,message);}catch(error){logger.error('Failed to retrieve clearkeys from ProtectionData');return null;}}function setProtectionData(protectionDataSet){var getProtectionData=function getProtectionData(keySystemString){var protData=null;if(protectionDataSet){protData=keySystemString in protectionDataSet?protectionDataSet[keySystemString]:null;}return protData;};for(var i=0;i<keySystems.length;i++){var keySystem=keySystems[i];if(keySystem.hasOwnProperty('init')){keySystem.init(getProtectionData(keySystem.systemString));}}}instance={initialize:initialize,setProtectionData:setProtectionData,isClearKey:isClearKey,initDataEquals:initDataEquals,getKeySystems:getKeySystems,setKeySystems:setKeySystems,getKeySystemBySystemString:getKeySystemBySystemString,getSupportedKeySystemsFromContentProtection:getSupportedKeySystemsFromContentProtection,getSupportedKeySystems:getSupportedKeySystems,getLicenseServer:getLicenseServer,processClearKeyLicenseRequest:processClearKeyLicenseRequest,setConfig:setConfig};return instance;}ProtectionKeyController.__dashjs_factory_name='ProtectionKeyController';exports.default=dashjs.FactoryMaker.getSingletonFactory(ProtectionKeyController);/* jshint ignore:line */\n//# sourceMappingURL=ProtectionKeyController.js.map\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _FactoryMaker=require('../../core/FactoryMaker');var _FactoryMaker2=_interopRequireDefault(_FactoryMaker);var _EventBus=require('../../core/EventBus');var _EventBus2=_interopRequireDefault(_EventBus);var _Events=require('../../core/events/Events');var _Events2=_interopRequireDefault(_Events);var _Debug=require('../../core/Debug');var _Debug2=_interopRequireDefault(_Debug);function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n */function VideoModel(){var instance=void 0,logger=void 0,element=void 0,TTMLRenderingDiv=void 0,previousPlaybackRate=void 0;var VIDEO_MODEL_WRONG_ELEMENT_TYPE='element is not video or audio DOM type!';var context=this.context;var eventBus=(0,_EventBus2.default)(context).getInstance();var stalledStreams=[];function setup(){logger=(0,_Debug2.default)(context).getInstance().getLogger(instance);}function initialize(){eventBus.on(_Events2.default.PLAYBACK_PLAYING,onPlaying,this);}function reset(){eventBus.off(_Events2.default.PLAYBACK_PLAYING,onPlaying,this);}function onPlaybackCanPlay(){if(element){element.playbackRate=previousPlaybackRate||1;element.removeEventListener('canplay',onPlaybackCanPlay);}}function setPlaybackRate(value){if(!element)return;if(element.readyState<=2&&value>0){// If media element hasn't loaded enough data to play yet, wait until it has\nelement.addEventListener('canplay',onPlaybackCanPlay);}else{element.playbackRate=value;}}//TODO Move the DVR window calculations from MediaPlayer to Here.\nfunction setCurrentTime(currentTime,stickToBuffered){if(element){//_currentTime = currentTime;\n// We don't set the same currentTime because it can cause firing unexpected Pause event in IE11\n// providing playbackRate property equals to zero.\nif(element.currentTime==currentTime)return;// TODO Despite the fact that MediaSource 'open' event has been fired IE11 cannot set videoElement.currentTime\n// immediately (it throws InvalidStateError). It seems that this is related to videoElement.readyState property\n// Initially it is 0, but soon after 'open' event it goes to 1 and setting currentTime is allowed. Chrome allows to\n// set currentTime even if readyState = 0.\n// setTimeout is used to workaround InvalidStateError in IE11\ntry{currentTime=stickToBuffered?stickTimeToBuffered(currentTime):currentTime;element.currentTime=currentTime;}catch(e){if(element.readyState===0&&e.code===e.INVALID_STATE_ERR){setTimeout(function(){element.currentTime=currentTime;},400);}}}}function stickTimeToBuffered(time){var buffered=getBufferRange();var closestTime=time;var closestDistance=9999999999;if(buffered){for(var i=0;i<buffered.length;i++){var start=buffered.start(i);var end=buffered.end(i);var distanceToStart=Math.abs(start-time);var distanceToEnd=Math.abs(end-time);if(time>=start&&time<=end){return time;}if(distanceToStart<closestDistance){closestDistance=distanceToStart;closestTime=start;}if(distanceToEnd<closestDistance){closestDistance=distanceToEnd;closestTime=end;}}}return closestTime;}function getElement(){return element;}function setElement(value){//add check of value type\nif(value===null||value===undefined||value&&/^(VIDEO|AUDIO)$/i.test(value.nodeName)){element=value;// Workaround to force Firefox to fire the canplay event.\nif(element){element.preload='auto';}}else{throw VIDEO_MODEL_WRONG_ELEMENT_TYPE;}}function setSource(source){if(element){if(source){element.src=source;}else{element.removeAttribute('src');element.load();}}}function getSource(){return element?element.src:null;}function getTTMLRenderingDiv(){return TTMLRenderingDiv;}function setTTMLRenderingDiv(div){TTMLRenderingDiv=div;// The styling will allow the captions to match the video window size and position.\nTTMLRenderingDiv.style.position='absolute';TTMLRenderingDiv.style.display='flex';TTMLRenderingDiv.style.overflow='hidden';TTMLRenderingDiv.style.pointerEvents='none';TTMLRenderingDiv.style.top=0;TTMLRenderingDiv.style.left=0;}function setStallState(type,state){stallStream(type,state);}function isStalled(){return stalledStreams.length>0;}function addStalledStream(type){var event=void 0;if(type===null||element.seeking||stalledStreams.indexOf(type)!==-1){return;}stalledStreams.push(type);if(element&&stalledStreams.length===1){// Halt playback until nothing is stalled.\nevent=document.createEvent('Event');event.initEvent('waiting',true,false);previousPlaybackRate=element.playbackRate;setPlaybackRate(0);element.dispatchEvent(event);}}function removeStalledStream(type){var index=stalledStreams.indexOf(type);var event=void 0;if(type===null){return;}if(index!==-1){stalledStreams.splice(index,1);}// If nothing is stalled resume playback.\nif(element&&isStalled()===false&&element.playbackRate===0){setPlaybackRate(previousPlaybackRate||1);if(!element.paused){event=document.createEvent('Event');event.initEvent('playing',true,false);element.dispatchEvent(event);}}}function stallStream(type,isStalled){if(isStalled){addStalledStream(type);}else{removeStalledStream(type);}}//Calling play on the element will emit playing - even if the stream is stalled. If the stream is stalled, emit a waiting event.\nfunction onPlaying(){if(element&&isStalled()&&element.playbackRate===0){var event=document.createEvent('Event');event.initEvent('waiting',true,false);element.dispatchEvent(event);}}function getPlaybackQuality(){if(!element){return null;}var hasWebKit='webkitDroppedFrameCount'in element&&'webkitDecodedFrameCount'in element;var hasQuality='getVideoPlaybackQuality'in element;var result=null;if(hasQuality){result=element.getVideoPlaybackQuality();}else if(hasWebKit){result={droppedVideoFrames:element.webkitDroppedFrameCount,totalVideoFrames:element.webkitDroppedFrameCount+element.webkitDecodedFrameCount,creationTime:new Date()};}return result;}function play(){if(element){element.autoplay=true;var p=element.play();if(p&&p.catch&&typeof Promise!=='undefined'){p.catch(function(e){if(e.name==='NotAllowedError'){eventBus.trigger(_Events2.default.PLAYBACK_NOT_ALLOWED);}logger.warn('Caught pending play exception - continuing ('+e+')');});}}}function isPaused(){return element?element.paused:null;}function pause(){if(element){element.pause();element.autoplay=false;}}function isSeeking(){return element?element.seeking:null;}function getTime(){return element?element.currentTime:null;}function getPlaybackRate(){return element?element.playbackRate:null;}function getPlayedRanges(){return element?element.played:null;}function getEnded(){return element?element.ended:null;}function addEventListener(eventName,eventCallBack){if(element){element.addEventListener(eventName,eventCallBack);}}function removeEventListener(eventName,eventCallBack){if(element){element.removeEventListener(eventName,eventCallBack);}}function getReadyState(){return element?element.readyState:NaN;}function getBufferRange(){return element?element.buffered:null;}function getClientWidth(){return element?element.clientWidth:NaN;}function getClientHeight(){return element?element.clientHeight:NaN;}function getVideoWidth(){return element?element.videoWidth:NaN;}function getVideoHeight(){return element?element.videoHeight:NaN;}function getVideoRelativeOffsetTop(){return element&&element.parentNode?element.getBoundingClientRect().top-element.parentNode.getBoundingClientRect().top:NaN;}function getVideoRelativeOffsetLeft(){return element&&element.parentNode?element.getBoundingClientRect().left-element.parentNode.getBoundingClientRect().left:NaN;}function getTextTracks(){return element?element.textTracks:[];}function getTextTrack(kind,label,lang,isTTML,isEmbedded){if(element){for(var i=0;i<element.textTracks.length;i++){//label parameter could be a number (due to adaptationSet), but label, the attribute of textTrack, is a string => to modify...\n//label could also be undefined (due to adaptationSet)\nif(element.textTracks[i].kind===kind&&(label?element.textTracks[i].label==label:true)&&element.textTracks[i].language===lang&&element.textTracks[i].isTTML===isTTML&&element.textTracks[i].isEmbedded===isEmbedded){return element.textTracks[i];}}}return null;}function addTextTrack(kind,label,lang,isTTML,isEmbedded){if(!element){return null;}// check if track of same type has not been already created for previous stream\n// then use it (no way to remove existing text track from video element)\nvar track=getTextTrack(kind,label,lang,isTTML,isEmbedded);if(!track){track=element.addTextTrack(kind,label,lang);track.isEmbedded=isEmbedded;track.isTTML=isTTML;}return track;}function appendChild(childElement){if(element){element.appendChild(childElement);//in Chrome, we need to differenciate textTrack with same lang, kind and label but different format (vtt, ttml, etc...)\nif(childElement.isTTML!==undefined){element.textTracks[element.textTracks.length-1].isTTML=childElement.isTTML;element.textTracks[element.textTracks.length-1].isEmbedded=childElement.isEmbedded;}}}function removeChild(childElement){if(element){element.removeChild(childElement);}}instance={initialize:initialize,setCurrentTime:setCurrentTime,play:play,isPaused:isPaused,pause:pause,isSeeking:isSeeking,getTime:getTime,getPlaybackRate:getPlaybackRate,setPlaybackRate:setPlaybackRate,getPlayedRanges:getPlayedRanges,getEnded:getEnded,setStallState:setStallState,getElement:getElement,setElement:setElement,setSource:setSource,getSource:getSource,getTTMLRenderingDiv:getTTMLRenderingDiv,setTTMLRenderingDiv:setTTMLRenderingDiv,getPlaybackQuality:getPlaybackQuality,addEventListener:addEventListener,removeEventListener:removeEventListener,getReadyState:getReadyState,getBufferRange:getBufferRange,getClientWidth:getClientWidth,getClientHeight:getClientHeight,getTextTracks:getTextTracks,getTextTrack:getTextTrack,addTextTrack:addTextTrack,appendChild:appendChild,removeChild:removeChild,getVideoWidth:getVideoWidth,getVideoHeight:getVideoHeight,getVideoRelativeOffsetTop:getVideoRelativeOffsetTop,getVideoRelativeOffsetLeft:getVideoRelativeOffsetLeft,reset:reset};setup();return instance;}VideoModel.__dashjs_factory_name='VideoModel';exports.default=_FactoryMaker2.default.getSingletonFactory(VideoModel);\n//# sourceMappingURL=VideoModel.js.map\n","'use strict';\nvar toIndexedObject = require('../internals/to-indexed-object');\nvar addToUnscopables = require('../internals/add-to-unscopables');\nvar Iterators = require('../internals/iterators');\nvar InternalStateModule = require('../internals/internal-state');\nvar defineIterator = require('../internals/define-iterator');\n\nvar ARRAY_ITERATOR = 'Array Iterator';\nvar setInternalState = InternalStateModule.set;\nvar getInternalState = InternalStateModule.getterFor(ARRAY_ITERATOR);\n\n// `Array.prototype.entries` method\n// https://tc39.github.io/ecma262/#sec-array.prototype.entries\n// `Array.prototype.keys` method\n// https://tc39.github.io/ecma262/#sec-array.prototype.keys\n// `Array.prototype.values` method\n// https://tc39.github.io/ecma262/#sec-array.prototype.values\n// `Array.prototype[@@iterator]` method\n// https://tc39.github.io/ecma262/#sec-array.prototype-@@iterator\n// `CreateArrayIterator` internal method\n// https://tc39.github.io/ecma262/#sec-createarrayiterator\nmodule.exports = defineIterator(Array, 'Array', function (iterated, kind) {\n  setInternalState(this, {\n    type: ARRAY_ITERATOR,\n    target: toIndexedObject(iterated), // target\n    index: 0,                          // next index\n    kind: kind                         // kind\n  });\n// `%ArrayIteratorPrototype%.next` method\n// https://tc39.github.io/ecma262/#sec-%arrayiteratorprototype%.next\n}, function () {\n  var state = getInternalState(this);\n  var target = state.target;\n  var kind = state.kind;\n  var index = state.index++;\n  if (!target || index >= target.length) {\n    state.target = undefined;\n    return { value: undefined, done: true };\n  }\n  if (kind == 'keys') return { value: index, done: false };\n  if (kind == 'values') return { value: target[index], done: false };\n  return { value: [index, target[index]], done: false };\n}, 'values');\n\n// argumentsList[@@iterator] is %ArrayProto_values%\n// https://tc39.github.io/ecma262/#sec-createunmappedargumentsobject\n// https://tc39.github.io/ecma262/#sec-createmappedargumentsobject\nIterators.Arguments = Iterators.Array;\n\n// https://tc39.github.io/ecma262/#sec-array.prototype-@@unscopables\naddToUnscopables('keys');\naddToUnscopables('values');\naddToUnscopables('entries');\n","var redefine = require('../internals/redefine');\n\nmodule.exports = function (target, src, options) {\n  for (var key in src) redefine(target, key, src[key], options);\n  return target;\n};\n","\"use strict\";Object.defineProperty(exports,\"__esModule\",{value:true});function _classCallCheck(instance,Constructor){if(!(instance instanceof Constructor)){throw new TypeError(\"Cannot call a class as a function\");}}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n *//**\n * @class\n * @ignore\n */var RepresentationSwitch=/**\n     * @description This Object holds reference to the info at quality switch between two representations.\n     */function RepresentationSwitch(){_classCallCheck(this,RepresentationSwitch);/**\n         * Time of the switch event.\n         * @public\n         */this.t=null;/**\n         * The media presentation time of the earliest access unit\n         * (out of all media content components) played out from\n         * the Representation.\n         *\n         * @public\n         */this.mt=null;/**\n         * Value of Representation@id identifying the switch-to Representation.\n         * @public\n         */this.to=null;/**\n         * If not present, this metrics concerns the Representation as a whole.\n         * If present, lto indicates the value of SubRepresentation@level within\n         * Representation identifying the switch-to level of the Representation.\n         *\n         * @public\n         */this.lto=null;};exports.default=RepresentationSwitch;\n//# sourceMappingURL=RepresentationSwitch.js.map\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _FactoryMaker=require('../../core/FactoryMaker');var _FactoryMaker2=_interopRequireDefault(_FactoryMaker);var _Debug=require('../../core/Debug');var _Debug2=_interopRequireDefault(_Debug);var _EventBus=require('../../core/EventBus');var _EventBus2=_interopRequireDefault(_EventBus);var _Events=require('../../core/events/Events');var _Events2=_interopRequireDefault(_Events);var _XHRLoader=require('../net/XHRLoader');var _XHRLoader2=_interopRequireDefault(_XHRLoader);function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}function EventController(){var MPD_RELOAD_SCHEME='urn:mpeg:dash:event:2012';var MPD_RELOAD_VALUE=1;var MPD_CALLBACK_SCHEME='urn:mpeg:dash:event:callback:2015';var MPD_CALLBACK_VALUE=1;var context=this.context;var eventBus=(0,_EventBus2.default)(context).getInstance();var instance=void 0,logger=void 0,inlineEvents=void 0,// Holds all Inline Events not triggered yet\ninbandEvents=void 0,// Holds all Inband Events not triggered yet\nactiveEvents=void 0,// Holds all Events currently running\neventInterval=void 0,// variable holding the setInterval\nrefreshDelay=void 0,// refreshTime for the setInterval\nlastEventTimerCall=void 0,manifestUpdater=void 0,playbackController=void 0,isStarted=void 0;function setup(){logger=(0,_Debug2.default)(context).getInstance().getLogger(instance);resetInitialSettings();}function resetInitialSettings(){isStarted=false;inlineEvents={};inbandEvents={};activeEvents={};eventInterval=null;refreshDelay=100;lastEventTimerCall=Date.now()/1000;}function checkConfig(){if(!manifestUpdater||!playbackController){throw new Error('setConfig function has to be called previously');}}function stop(){if(eventInterval!==null&&isStarted){clearInterval(eventInterval);eventInterval=null;isStarted=false;}}function start(){checkConfig();logger.debug('Start Event Controller');if(!isStarted&&!isNaN(refreshDelay)){isStarted=true;eventInterval=setInterval(onEventTimer,refreshDelay);}}/**\n     * Add events to the eventList. Events that are not in the mpd anymore but not triggered yet will still be deleted\n     * @param {Array.<Object>} values\n     */function addInlineEvents(values){checkConfig();inlineEvents={};if(values){for(var i=0;i<values.length;i++){var event=values[i];inlineEvents[event.id]=event;logger.debug('Add inline event with id '+event.id);}}logger.debug('Added '+values.length+' inline events');}/**\n     * i.e. processing of any one event message box with the same id is sufficient\n     * @param {Array.<Object>} values\n     */function addInbandEvents(values){checkConfig();for(var i=0;i<values.length;i++){var event=values[i];if(!(event.id in inbandEvents)){if(event.eventStream.schemeIdUri===MPD_RELOAD_SCHEME&&inbandEvents[event.id]===undefined){handleManifestReloadEvent(event);}inbandEvents[event.id]=event;logger.debug('Add inband event with id '+event.id);}else{logger.debug('Repeated event with id '+event.id);}}}function handleManifestReloadEvent(event){if(event.eventStream.value==MPD_RELOAD_VALUE){var timescale=event.eventStream.timescale||1;var validUntil=event.presentationTime/timescale;var newDuration=void 0;if(event.presentationTime==0xFFFFFFFF){//0xFF... means remaining duration unknown\nnewDuration=NaN;}else{newDuration=(event.presentationTime+event.duration)/timescale;}logger.info('Manifest validity changed: Valid until: '+validUntil+'; remaining duration: '+newDuration);eventBus.trigger(_Events2.default.MANIFEST_VALIDITY_CHANGED,{id:event.id,validUntil:validUntil,newDuration:newDuration,newManifestValidAfter:NaN//event.message_data - this is an arraybuffer with a timestring in it, but not used yet\n});}}/**\n     * Remove events which are over from the list\n     */function removeEvents(){if(activeEvents){var currentVideoTime=playbackController.getTime();var eventIds=Object.keys(activeEvents);for(var i=0;i<eventIds.length;i++){var eventId=eventIds[i];var curr=activeEvents[eventId];if(curr!==null&&(curr.duration+curr.presentationTime)/curr.eventStream.timescale<currentVideoTime){logger.debug('Remove Event '+eventId+' at time '+currentVideoTime);curr=null;delete activeEvents[eventId];}}}}/**\n     * Iterate through the eventList and trigger/remove the events\n     */function onEventTimer(){var currentVideoTime=playbackController.getTime();var presentationTimeThreshold=currentVideoTime-lastEventTimerCall;lastEventTimerCall=currentVideoTime;presentationTimeThreshold=Math.max(0,presentationTimeThreshold);triggerEvents(inbandEvents,presentationTimeThreshold,currentVideoTime);triggerEvents(inlineEvents,presentationTimeThreshold,currentVideoTime);removeEvents();}function refreshManifest(){checkConfig();manifestUpdater.refreshManifest();}function sendCallbackRequest(url){var loader=(0,_XHRLoader2.default)(context).create({});loader.load({method:'get',url:url,request:{responseType:'arraybuffer'}});}function triggerEvents(events,presentationTimeThreshold,currentVideoTime){var presentationTime;/* == Trigger events that are ready == */if(events){var eventIds=Object.keys(events);for(var i=0;i<eventIds.length;i++){var eventId=eventIds[i];var curr=events[eventId];if(curr!==undefined){presentationTime=curr.presentationTime/curr.eventStream.timescale;if(presentationTime===0||presentationTime<=currentVideoTime&&presentationTime+presentationTimeThreshold>currentVideoTime){logger.debug('Start Event '+eventId+' at '+currentVideoTime);if(curr.duration>0){activeEvents[eventId]=curr;}if(curr.eventStream.schemeIdUri==MPD_RELOAD_SCHEME&&curr.eventStream.value==MPD_RELOAD_VALUE){if(curr.duration!==0||curr.presentationTimeDelta!==0){//If both are set to zero, it indicates the media is over at this point. Don't reload the manifest.\nrefreshManifest();}}else if(curr.eventStream.schemeIdUri==MPD_CALLBACK_SCHEME&&curr.eventStream.value==MPD_CALLBACK_VALUE){sendCallbackRequest(curr.messageData);}else{eventBus.trigger(curr.eventStream.schemeIdUri,{event:curr});}delete events[eventId];}else if(presentationTime<=currentVideoTime-presentationTimeThreshold){delete events[eventId];}}}}}function setConfig(config){if(!config)return;if(config.manifestUpdater){manifestUpdater=config.manifestUpdater;}if(config.playbackController){playbackController=config.playbackController;}}function reset(){stop();resetInitialSettings();}instance={addInlineEvents:addInlineEvents,addInbandEvents:addInbandEvents,stop:stop,start:start,setConfig:setConfig,reset:reset};setup();return instance;}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n */EventController.__dashjs_factory_name='EventController';exports.default=_FactoryMaker2.default.getClassFactory(EventController);\n//# sourceMappingURL=EventController.js.map\n","exports = module.exports = require('./lib/_stream_readable.js');\nexports.Stream = exports;\nexports.Readable = exports;\nexports.Writable = require('./lib/_stream_writable.js');\nexports.Duplex = require('./lib/_stream_duplex.js');\nexports.Transform = require('./lib/_stream_transform.js');\nexports.PassThrough = require('./lib/_stream_passthrough.js');\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});function _classCallCheck(instance,Constructor){if(!(instance instanceof Constructor)){throw new TypeError(\"Cannot call a class as a function\");}}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n *//**\n * @class\n * @ignore\n */var Reporting=function Reporting(){_classCallCheck(this,Reporting);// Reporting is a DescriptorType and doesn't have any additional fields\nthis.schemeIdUri='';this.value='';};exports.default=Reporting;\n//# sourceMappingURL=Reporting.js.map\n","var toString = {}.toString;\n\nmodule.exports = Array.isArray || function (arr) {\n  return toString.call(arr) == '[object Array]';\n};\n","var wellKnownSymbol = require('../internals/well-known-symbol');\n\nexports.f = wellKnownSymbol;\n","module.exports = function (exec) {\n  try {\n    return { error: false, value: exec() };\n  } catch (error) {\n    return { error: true, value: error };\n  }\n};\n","'use strict';\n\n/**\n * Creates a new URL by combining the specified URLs\n *\n * @param {string} baseURL The base URL\n * @param {string} relativeURL The relative URL\n * @returns {string} The combined URL\n */\nmodule.exports = function combineURLs(baseURL, relativeURL) {\n  return relativeURL\n    ? baseURL.replace(/\\/+$/, '') + '/' + relativeURL.replace(/^\\/+/, '')\n    : baseURL;\n};\n","'use strict';\nvar $ = require('../internals/export');\nvar IS_PURE = require('../internals/is-pure');\nvar global = require('../internals/global');\nvar getBuiltIn = require('../internals/get-built-in');\nvar NativePromise = require('../internals/native-promise-constructor');\nvar redefine = require('../internals/redefine');\nvar redefineAll = require('../internals/redefine-all');\nvar setToStringTag = require('../internals/set-to-string-tag');\nvar setSpecies = require('../internals/set-species');\nvar isObject = require('../internals/is-object');\nvar aFunction = require('../internals/a-function');\nvar anInstance = require('../internals/an-instance');\nvar classof = require('../internals/classof-raw');\nvar inspectSource = require('../internals/inspect-source');\nvar iterate = require('../internals/iterate');\nvar checkCorrectnessOfIteration = require('../internals/check-correctness-of-iteration');\nvar speciesConstructor = require('../internals/species-constructor');\nvar task = require('../internals/task').set;\nvar microtask = require('../internals/microtask');\nvar promiseResolve = require('../internals/promise-resolve');\nvar hostReportErrors = require('../internals/host-report-errors');\nvar newPromiseCapabilityModule = require('../internals/new-promise-capability');\nvar perform = require('../internals/perform');\nvar InternalStateModule = require('../internals/internal-state');\nvar isForced = require('../internals/is-forced');\nvar wellKnownSymbol = require('../internals/well-known-symbol');\nvar V8_VERSION = require('../internals/engine-v8-version');\n\nvar SPECIES = wellKnownSymbol('species');\nvar PROMISE = 'Promise';\nvar getInternalState = InternalStateModule.get;\nvar setInternalState = InternalStateModule.set;\nvar getInternalPromiseState = InternalStateModule.getterFor(PROMISE);\nvar PromiseConstructor = NativePromise;\nvar TypeError = global.TypeError;\nvar document = global.document;\nvar process = global.process;\nvar $fetch = getBuiltIn('fetch');\nvar newPromiseCapability = newPromiseCapabilityModule.f;\nvar newGenericPromiseCapability = newPromiseCapability;\nvar IS_NODE = classof(process) == 'process';\nvar DISPATCH_EVENT = !!(document && document.createEvent && global.dispatchEvent);\nvar UNHANDLED_REJECTION = 'unhandledrejection';\nvar REJECTION_HANDLED = 'rejectionhandled';\nvar PENDING = 0;\nvar FULFILLED = 1;\nvar REJECTED = 2;\nvar HANDLED = 1;\nvar UNHANDLED = 2;\nvar Internal, OwnPromiseCapability, PromiseWrapper, nativeThen;\n\nvar FORCED = isForced(PROMISE, function () {\n  var GLOBAL_CORE_JS_PROMISE = inspectSource(PromiseConstructor) !== String(PromiseConstructor);\n  if (!GLOBAL_CORE_JS_PROMISE) {\n    // V8 6.6 (Node 10 and Chrome 66) have a bug with resolving custom thenables\n    // https://bugs.chromium.org/p/chromium/issues/detail?id=830565\n    // We can't detect it synchronously, so just check versions\n    if (V8_VERSION === 66) return true;\n    // Unhandled rejections tracking support, NodeJS Promise without it fails @@species test\n    if (!IS_NODE && typeof PromiseRejectionEvent != 'function') return true;\n  }\n  // We need Promise#finally in the pure version for preventing prototype pollution\n  if (IS_PURE && !PromiseConstructor.prototype['finally']) return true;\n  // We can't use @@species feature detection in V8 since it causes\n  // deoptimization and performance degradation\n  // https://github.com/zloirock/core-js/issues/679\n  if (V8_VERSION >= 51 && /native code/.test(PromiseConstructor)) return false;\n  // Detect correctness of subclassing with @@species support\n  var promise = PromiseConstructor.resolve(1);\n  var FakePromise = function (exec) {\n    exec(function () { /* empty */ }, function () { /* empty */ });\n  };\n  var constructor = promise.constructor = {};\n  constructor[SPECIES] = FakePromise;\n  return !(promise.then(function () { /* empty */ }) instanceof FakePromise);\n});\n\nvar INCORRECT_ITERATION = FORCED || !checkCorrectnessOfIteration(function (iterable) {\n  PromiseConstructor.all(iterable)['catch'](function () { /* empty */ });\n});\n\n// helpers\nvar isThenable = function (it) {\n  var then;\n  return isObject(it) && typeof (then = it.then) == 'function' ? then : false;\n};\n\nvar notify = function (promise, state, isReject) {\n  if (state.notified) return;\n  state.notified = true;\n  var chain = state.reactions;\n  microtask(function () {\n    var value = state.value;\n    var ok = state.state == FULFILLED;\n    var index = 0;\n    // variable length - can't use forEach\n    while (chain.length > index) {\n      var reaction = chain[index++];\n      var handler = ok ? reaction.ok : reaction.fail;\n      var resolve = reaction.resolve;\n      var reject = reaction.reject;\n      var domain = reaction.domain;\n      var result, then, exited;\n      try {\n        if (handler) {\n          if (!ok) {\n            if (state.rejection === UNHANDLED) onHandleUnhandled(promise, state);\n            state.rejection = HANDLED;\n          }\n          if (handler === true) result = value;\n          else {\n            if (domain) domain.enter();\n            result = handler(value); // can throw\n            if (domain) {\n              domain.exit();\n              exited = true;\n            }\n          }\n          if (result === reaction.promise) {\n            reject(TypeError('Promise-chain cycle'));\n          } else if (then = isThenable(result)) {\n            then.call(result, resolve, reject);\n          } else resolve(result);\n        } else reject(value);\n      } catch (error) {\n        if (domain && !exited) domain.exit();\n        reject(error);\n      }\n    }\n    state.reactions = [];\n    state.notified = false;\n    if (isReject && !state.rejection) onUnhandled(promise, state);\n  });\n};\n\nvar dispatchEvent = function (name, promise, reason) {\n  var event, handler;\n  if (DISPATCH_EVENT) {\n    event = document.createEvent('Event');\n    event.promise = promise;\n    event.reason = reason;\n    event.initEvent(name, false, true);\n    global.dispatchEvent(event);\n  } else event = { promise: promise, reason: reason };\n  if (handler = global['on' + name]) handler(event);\n  else if (name === UNHANDLED_REJECTION) hostReportErrors('Unhandled promise rejection', reason);\n};\n\nvar onUnhandled = function (promise, state) {\n  task.call(global, function () {\n    var value = state.value;\n    var IS_UNHANDLED = isUnhandled(state);\n    var result;\n    if (IS_UNHANDLED) {\n      result = perform(function () {\n        if (IS_NODE) {\n          process.emit('unhandledRejection', value, promise);\n        } else dispatchEvent(UNHANDLED_REJECTION, promise, value);\n      });\n      // Browsers should not trigger `rejectionHandled` event if it was handled here, NodeJS - should\n      state.rejection = IS_NODE || isUnhandled(state) ? UNHANDLED : HANDLED;\n      if (result.error) throw result.value;\n    }\n  });\n};\n\nvar isUnhandled = function (state) {\n  return state.rejection !== HANDLED && !state.parent;\n};\n\nvar onHandleUnhandled = function (promise, state) {\n  task.call(global, function () {\n    if (IS_NODE) {\n      process.emit('rejectionHandled', promise);\n    } else dispatchEvent(REJECTION_HANDLED, promise, state.value);\n  });\n};\n\nvar bind = function (fn, promise, state, unwrap) {\n  return function (value) {\n    fn(promise, state, value, unwrap);\n  };\n};\n\nvar internalReject = function (promise, state, value, unwrap) {\n  if (state.done) return;\n  state.done = true;\n  if (unwrap) state = unwrap;\n  state.value = value;\n  state.state = REJECTED;\n  notify(promise, state, true);\n};\n\nvar internalResolve = function (promise, state, value, unwrap) {\n  if (state.done) return;\n  state.done = true;\n  if (unwrap) state = unwrap;\n  try {\n    if (promise === value) throw TypeError(\"Promise can't be resolved itself\");\n    var then = isThenable(value);\n    if (then) {\n      microtask(function () {\n        var wrapper = { done: false };\n        try {\n          then.call(value,\n            bind(internalResolve, promise, wrapper, state),\n            bind(internalReject, promise, wrapper, state)\n          );\n        } catch (error) {\n          internalReject(promise, wrapper, error, state);\n        }\n      });\n    } else {\n      state.value = value;\n      state.state = FULFILLED;\n      notify(promise, state, false);\n    }\n  } catch (error) {\n    internalReject(promise, { done: false }, error, state);\n  }\n};\n\n// constructor polyfill\nif (FORCED) {\n  // 25.4.3.1 Promise(executor)\n  PromiseConstructor = function Promise(executor) {\n    anInstance(this, PromiseConstructor, PROMISE);\n    aFunction(executor);\n    Internal.call(this);\n    var state = getInternalState(this);\n    try {\n      executor(bind(internalResolve, this, state), bind(internalReject, this, state));\n    } catch (error) {\n      internalReject(this, state, error);\n    }\n  };\n  // eslint-disable-next-line no-unused-vars\n  Internal = function Promise(executor) {\n    setInternalState(this, {\n      type: PROMISE,\n      done: false,\n      notified: false,\n      parent: false,\n      reactions: [],\n      rejection: false,\n      state: PENDING,\n      value: undefined\n    });\n  };\n  Internal.prototype = redefineAll(PromiseConstructor.prototype, {\n    // `Promise.prototype.then` method\n    // https://tc39.github.io/ecma262/#sec-promise.prototype.then\n    then: function then(onFulfilled, onRejected) {\n      var state = getInternalPromiseState(this);\n      var reaction = newPromiseCapability(speciesConstructor(this, PromiseConstructor));\n      reaction.ok = typeof onFulfilled == 'function' ? onFulfilled : true;\n      reaction.fail = typeof onRejected == 'function' && onRejected;\n      reaction.domain = IS_NODE ? process.domain : undefined;\n      state.parent = true;\n      state.reactions.push(reaction);\n      if (state.state != PENDING) notify(this, state, false);\n      return reaction.promise;\n    },\n    // `Promise.prototype.catch` method\n    // https://tc39.github.io/ecma262/#sec-promise.prototype.catch\n    'catch': function (onRejected) {\n      return this.then(undefined, onRejected);\n    }\n  });\n  OwnPromiseCapability = function () {\n    var promise = new Internal();\n    var state = getInternalState(promise);\n    this.promise = promise;\n    this.resolve = bind(internalResolve, promise, state);\n    this.reject = bind(internalReject, promise, state);\n  };\n  newPromiseCapabilityModule.f = newPromiseCapability = function (C) {\n    return C === PromiseConstructor || C === PromiseWrapper\n      ? new OwnPromiseCapability(C)\n      : newGenericPromiseCapability(C);\n  };\n\n  if (!IS_PURE && typeof NativePromise == 'function') {\n    nativeThen = NativePromise.prototype.then;\n\n    // wrap native Promise#then for native async functions\n    redefine(NativePromise.prototype, 'then', function then(onFulfilled, onRejected) {\n      var that = this;\n      return new PromiseConstructor(function (resolve, reject) {\n        nativeThen.call(that, resolve, reject);\n      }).then(onFulfilled, onRejected);\n    // https://github.com/zloirock/core-js/issues/640\n    }, { unsafe: true });\n\n    // wrap fetch result\n    if (typeof $fetch == 'function') $({ global: true, enumerable: true, forced: true }, {\n      // eslint-disable-next-line no-unused-vars\n      fetch: function fetch(input /* , init */) {\n        return promiseResolve(PromiseConstructor, $fetch.apply(global, arguments));\n      }\n    });\n  }\n}\n\n$({ global: true, wrap: true, forced: FORCED }, {\n  Promise: PromiseConstructor\n});\n\nsetToStringTag(PromiseConstructor, PROMISE, false, true);\nsetSpecies(PROMISE);\n\nPromiseWrapper = getBuiltIn(PROMISE);\n\n// statics\n$({ target: PROMISE, stat: true, forced: FORCED }, {\n  // `Promise.reject` method\n  // https://tc39.github.io/ecma262/#sec-promise.reject\n  reject: function reject(r) {\n    var capability = newPromiseCapability(this);\n    capability.reject.call(undefined, r);\n    return capability.promise;\n  }\n});\n\n$({ target: PROMISE, stat: true, forced: IS_PURE || FORCED }, {\n  // `Promise.resolve` method\n  // https://tc39.github.io/ecma262/#sec-promise.resolve\n  resolve: function resolve(x) {\n    return promiseResolve(IS_PURE && this === PromiseWrapper ? PromiseConstructor : this, x);\n  }\n});\n\n$({ target: PROMISE, stat: true, forced: INCORRECT_ITERATION }, {\n  // `Promise.all` method\n  // https://tc39.github.io/ecma262/#sec-promise.all\n  all: function all(iterable) {\n    var C = this;\n    var capability = newPromiseCapability(C);\n    var resolve = capability.resolve;\n    var reject = capability.reject;\n    var result = perform(function () {\n      var $promiseResolve = aFunction(C.resolve);\n      var values = [];\n      var counter = 0;\n      var remaining = 1;\n      iterate(iterable, function (promise) {\n        var index = counter++;\n        var alreadyCalled = false;\n        values.push(undefined);\n        remaining++;\n        $promiseResolve.call(C, promise).then(function (value) {\n          if (alreadyCalled) return;\n          alreadyCalled = true;\n          values[index] = value;\n          --remaining || resolve(values);\n        }, reject);\n      });\n      --remaining || resolve(values);\n    });\n    if (result.error) reject(result.value);\n    return capability.promise;\n  },\n  // `Promise.race` method\n  // https://tc39.github.io/ecma262/#sec-promise.race\n  race: function race(iterable) {\n    var C = this;\n    var capability = newPromiseCapability(C);\n    var reject = capability.reject;\n    var result = perform(function () {\n      var $promiseResolve = aFunction(C.resolve);\n      iterate(iterable, function (promise) {\n        $promiseResolve.call(C, promise).then(capability.resolve, reject);\n      });\n    });\n    if (result.error) reject(result.value);\n    return capability.promise;\n  }\n});\n","var has = require('../internals/has');\nvar ownKeys = require('../internals/own-keys');\nvar getOwnPropertyDescriptorModule = require('../internals/object-get-own-property-descriptor');\nvar definePropertyModule = require('../internals/object-define-property');\n\nmodule.exports = function (target, source) {\n  var keys = ownKeys(source);\n  var defineProperty = definePropertyModule.f;\n  var getOwnPropertyDescriptor = getOwnPropertyDescriptorModule.f;\n  for (var i = 0; i < keys.length; i++) {\n    var key = keys[i];\n    if (!has(target, key)) defineProperty(target, key, getOwnPropertyDescriptor(source, key));\n  }\n};\n","var classof = require('../internals/classof-raw');\n\n// `IsArray` abstract operation\n// https://tc39.github.io/ecma262/#sec-isarray\nmodule.exports = Array.isArray || function isArray(arg) {\n  return classof(arg) == 'Array';\n};\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _EventsBase2=require('../../core/events/EventsBase');var _EventsBase3=_interopRequireDefault(_EventsBase2);function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}function _classCallCheck(instance,Constructor){if(!(instance instanceof Constructor)){throw new TypeError(\"Cannot call a class as a function\");}}function _possibleConstructorReturn(self,call){if(!self){throw new ReferenceError(\"this hasn't been initialised - super() hasn't been called\");}return call&&(typeof call===\"object\"||typeof call===\"function\")?call:self;}function _inherits(subClass,superClass){if(typeof superClass!==\"function\"&&superClass!==null){throw new TypeError(\"Super expression must either be null or a function, not \"+typeof superClass);}subClass.prototype=Object.create(superClass&&superClass.prototype,{constructor:{value:subClass,enumerable:false,writable:true,configurable:true}});if(superClass)Object.setPrototypeOf?Object.setPrototypeOf(subClass,superClass):subClass.__proto__=superClass;}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n *//**\n * @class\n  */var ProtectionEvents=function(_EventsBase){_inherits(ProtectionEvents,_EventsBase);/**\n     * @description Public facing external events to be used when including protection package.\n     * All public events will be aggregated into the MediaPlayerEvents Class and can be accessed\n     * via MediaPlayer.events.  public_ is the prefix that we use to move event names to MediaPlayerEvents.\n     */function ProtectionEvents(){_classCallCheck(this,ProtectionEvents);/**\n         * Event ID for events delivered when the protection set receives\n         * a key message from the CDM\n         *\n         * @ignore\n         */var _this=_possibleConstructorReturn(this,(ProtectionEvents.__proto__||Object.getPrototypeOf(ProtectionEvents)).call(this));_this.INTERNAL_KEY_MESSAGE='internalKeyMessage';/**\n         * Event ID for events delivered when a key system selection procedure\n         * completes\n         * @ignore\n         */_this.INTERNAL_KEY_SYSTEM_SELECTED='internalKeySystemSelected';/**\n         * Event ID for events delivered when the status of one decryption keys has changed\n         * @ignore\n         */_this.INTERNAL_KEY_STATUS_CHANGED='internalkeyStatusChanged';/**\n         * Event ID for events delivered when a new key has been added\n         *\n         * @constant\n         * @deprecated The latest versions of the EME specification no longer\n         * use this event.  {@MediaPlayer.models.protectionModel.eventList.KEY_STATUSES_CHANGED}\n         * is preferred.\n         * @event ProtectionEvents#KEY_ADDED\n         */_this.KEY_ADDED='public_keyAdded';/**\n         * Event ID for events delivered when an error is encountered by the CDM\n         * while processing a license server response message\n         * @event ProtectionEvents#KEY_ERROR\n         */_this.KEY_ERROR='public_keyError';/**\n         * Event ID for events delivered when the protection set receives\n         * a key message from the CDM\n         * @event ProtectionEvents#KEY_MESSAGE\n         */_this.KEY_MESSAGE='public_keyMessage';/**\n         * Event ID for events delivered when a key session close\n         * process has completed\n         * @event ProtectionEvents#KEY_SESSION_CLOSED\n         */_this.KEY_SESSION_CLOSED='public_keySessionClosed';/**\n         * Event ID for events delivered when a new key sessions creation\n         * process has completed\n         * @event ProtectionEvents#KEY_SESSION_CREATED\n         */_this.KEY_SESSION_CREATED='public_keySessionCreated';/**\n         * Event ID for events delivered when a key session removal\n         * process has completed\n         * @event ProtectionEvents#KEY_SESSION_REMOVED\n         */_this.KEY_SESSION_REMOVED='public_keySessionRemoved';/**\n         * Event ID for events delivered when the status of one or more\n         * decryption keys has changed\n         * @event ProtectionEvents#KEY_STATUSES_CHANGED\n         */_this.KEY_STATUSES_CHANGED='public_keyStatusesChanged';/**\n         * Event ID for events delivered when a key system access procedure\n         * has completed\n         * @ignore\n         */_this.KEY_SYSTEM_ACCESS_COMPLETE='public_keySystemAccessComplete';/**\n         * Event ID for events delivered when a key system selection procedure\n         * completes\n         * @event ProtectionEvents#KEY_SYSTEM_SELECTED\n         */_this.KEY_SYSTEM_SELECTED='public_keySystemSelected';/**\n         * Event ID for events delivered when a license request procedure\n         * has completed\n         * @event ProtectionEvents#LICENSE_REQUEST_COMPLETE\n         */_this.LICENSE_REQUEST_COMPLETE='public_licenseRequestComplete';/**\n         * Event ID for needkey/encrypted events\n         * @ignore\n         */_this.NEED_KEY='needkey';/**\n         * Event ID for events delivered when the Protection system is detected and created.\n         * @event ProtectionEvents#PROTECTION_CREATED\n         */_this.PROTECTION_CREATED='public_protectioncreated';/**\n         * Event ID for events delivered when the Protection system is destroyed.\n         * @event ProtectionEvents#PROTECTION_DESTROYED\n         */_this.PROTECTION_DESTROYED='public_protectiondestroyed';/**\n         * Event ID for events delivered when a new server certificate has\n         * been delivered to the CDM\n         * @ignore\n         */_this.SERVER_CERTIFICATE_UPDATED='serverCertificateUpdated';/**\n         * Event ID for events delivered when the process of shutting down\n         * a protection set has completed\n         * @ignore\n         */_this.TEARDOWN_COMPLETE='protectionTeardownComplete';/**\n         * Event ID for events delivered when a HTMLMediaElement has been\n         * associated with the protection set\n         * @ignore\n         */_this.VIDEO_ELEMENT_SELECTED='videoElementSelected';return _this;}return ProtectionEvents;}(_EventsBase3.default);var protectionEvents=new ProtectionEvents();exports.default=protectionEvents;\n//# sourceMappingURL=ProtectionEvents.js.map\n","var wellKnownSymbol = require('../internals/well-known-symbol');\nvar Iterators = require('../internals/iterators');\n\nvar ITERATOR = wellKnownSymbol('iterator');\nvar ArrayPrototype = Array.prototype;\n\n// check on default Array iterator\nmodule.exports = function (it) {\n  return it !== undefined && (Iterators.Array === it || ArrayPrototype[ITERATOR] === it);\n};\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _Constants=require('../constants/Constants');var _Constants2=_interopRequireDefault(_Constants);var _EventBus=require('../../core/EventBus');var _EventBus2=_interopRequireDefault(_EventBus);var _Events=require('../../core/events/Events');var _Events2=_interopRequireDefault(_Events);var _FactoryMaker=require('../../core/FactoryMaker');var _FactoryMaker2=_interopRequireDefault(_FactoryMaker);var _Debug=require('../../core/Debug');var _Debug2=_interopRequireDefault(_Debug);var _imsc=require('imsc');var _SupervisorTools=require('../utils/SupervisorTools');function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}function TextTracks(){var context=this.context;var eventBus=(0,_EventBus2.default)(context).getInstance();var instance=void 0,logger=void 0,Cue=void 0,videoModel=void 0,textTrackQueue=void 0,trackElementArr=void 0,currentTrackIdx=void 0,actualVideoLeft=void 0,actualVideoTop=void 0,actualVideoWidth=void 0,actualVideoHeight=void 0,captionContainer=void 0,videoSizeCheckInterval=void 0,fullscreenAttribute=void 0,displayCCOnTop=void 0,previousISDState=void 0,topZIndex=void 0;function setup(){logger=(0,_Debug2.default)(context).getInstance().getLogger(instance);}function initialize(){if(typeof window==='undefined'||typeof navigator==='undefined'){return;}Cue=window.VTTCue||window.TextTrackCue;textTrackQueue=[];trackElementArr=[];currentTrackIdx=-1;actualVideoLeft=0;actualVideoTop=0;actualVideoWidth=0;actualVideoHeight=0;captionContainer=null;videoSizeCheckInterval=null;displayCCOnTop=false;topZIndex=2147483647;previousISDState=null;if(document.fullscreenElement!==undefined){fullscreenAttribute='fullscreenElement';// Standard and Edge\n}else if(document.webkitIsFullScreen!==undefined){fullscreenAttribute='webkitIsFullScreen';// Chrome and Safari (and Edge)\n}else if(document.msFullscreenElement){// IE11\nfullscreenAttribute='msFullscreenElement';}else if(document.mozFullScreen){// Firefox\nfullscreenAttribute='mozFullScreen';}}function createTrackForUserAgent(i){var kind=textTrackQueue[i].kind;var label=textTrackQueue[i].id!==undefined?textTrackQueue[i].id:textTrackQueue[i].lang;var lang=textTrackQueue[i].lang;var isTTML=textTrackQueue[i].isTTML;var isEmbedded=textTrackQueue[i].isEmbedded;var track=videoModel.addTextTrack(kind,label,lang,isTTML,isEmbedded);return track;}function setDisplayCConTop(value){(0,_SupervisorTools.checkParameterType)(value,'boolean');displayCCOnTop=value;if(!captionContainer||document[fullscreenAttribute]){return;}captionContainer.style.zIndex=value?topZIndex:null;}function addTextTrack(textTrackInfoVO,totalTextTracks){if(textTrackQueue.length===totalTextTracks){logger.error('Trying to add too many tracks.');return;}textTrackQueue.push(textTrackInfoVO);if(textTrackQueue.length===totalTextTracks){textTrackQueue.sort(function(a,b){//Sort in same order as in manifest\nreturn a.index-b.index;});captionContainer=videoModel.getTTMLRenderingDiv();var defaultIndex=-1;for(var i=0;i<textTrackQueue.length;i++){var track=createTrackForUserAgent.call(this,i);trackElementArr.push(track);//used to remove tracks from video element when added manually\nif(textTrackQueue[i].defaultTrack){// track.default is an object property identifier that is a reserved word\n// The following jshint directive is used to suppressed the warning \"Expected an identifier and instead saw 'default' (a reserved word)\"\n/*jshint -W024 */track.default=true;defaultIndex=i;}var textTrack=getTrackByIdx(i);if(textTrack){//each time a track is created, its mode should be showing by default\n//sometime, it's not on Chrome\ntextTrack.mode=_Constants2.default.TEXT_SHOWING;if(captionContainer&&(textTrackQueue[i].isTTML||textTrackQueue[i].isEmbedded)){textTrack.renderingType='html';}else{textTrack.renderingType='default';}}this.addCaptions(i,0,textTrackQueue[i].captionData);eventBus.trigger(_Events2.default.TEXT_TRACK_ADDED);}//set current track index in textTrackQueue array\nsetCurrentTrackIdx.call(this,defaultIndex);if(defaultIndex>=0){var onMetadataLoaded=function onMetadataLoaded(){var track=getTrackByIdx(defaultIndex);if(track){checkVideoSize.call(this,track,true);}eventBus.off(_Events2.default.PLAYBACK_METADATA_LOADED,onMetadataLoaded,this);};eventBus.on(_Events2.default.PLAYBACK_METADATA_LOADED,onMetadataLoaded,this);for(var idx=0;idx<textTrackQueue.length;idx++){var videoTextTrack=getTrackByIdx(idx);if(videoTextTrack){videoTextTrack.mode=idx===defaultIndex?_Constants2.default.TEXT_SHOWING:_Constants2.default.TEXT_HIDDEN;}}}eventBus.trigger(_Events2.default.TEXT_TRACKS_QUEUE_INITIALIZED,{index:currentTrackIdx,tracks:textTrackQueue});//send default idx.\n}}function getVideoVisibleVideoSize(viewWidth,viewHeight,videoWidth,videoHeight,aspectRatio,use80Percent){var viewAspectRatio=viewWidth/viewHeight;var videoAspectRatio=videoWidth/videoHeight;var videoPictureWidth=0;var videoPictureHeight=0;if(viewAspectRatio>videoAspectRatio){videoPictureHeight=viewHeight;videoPictureWidth=videoPictureHeight/videoHeight*videoWidth;}else{videoPictureWidth=viewWidth;videoPictureHeight=videoPictureWidth/videoWidth*videoHeight;}var videoPictureXAspect=0;var videoPictureYAspect=0;var videoPictureWidthAspect=0;var videoPictureHeightAspect=0;var videoPictureAspect=videoPictureWidth/videoPictureHeight;if(videoPictureAspect>aspectRatio){videoPictureHeightAspect=videoPictureHeight;videoPictureWidthAspect=videoPictureHeight*aspectRatio;}else{videoPictureWidthAspect=videoPictureWidth;videoPictureHeightAspect=videoPictureWidth/aspectRatio;}videoPictureXAspect=(viewWidth-videoPictureWidthAspect)/2;videoPictureYAspect=(viewHeight-videoPictureHeightAspect)/2;if(use80Percent){return{x:videoPictureXAspect+videoPictureWidthAspect*0.1,y:videoPictureYAspect+videoPictureHeightAspect*0.1,w:videoPictureWidthAspect*0.8,h:videoPictureHeightAspect*0.8};/* Maximal picture size in videos aspect ratio */}else{return{x:videoPictureXAspect,y:videoPictureYAspect,w:videoPictureWidthAspect,h:videoPictureHeightAspect};/* Maximal picture size in videos aspect ratio */}}function checkVideoSize(track,forceDrawing){var clientWidth=videoModel.getClientWidth();var clientHeight=videoModel.getClientHeight();var videoWidth=videoModel.getVideoWidth();var videoHeight=videoModel.getVideoHeight();var videoOffsetTop=videoModel.getVideoRelativeOffsetTop();var videoOffsetLeft=videoModel.getVideoRelativeOffsetLeft();if(videoWidth!==0&&videoHeight!==0){var aspectRatio=videoWidth/videoHeight;var use80Percent=false;if(track.isFromCEA608){// If this is CEA608 then use predefined aspect ratio\naspectRatio=3.5/3.0;use80Percent=true;}var realVideoSize=getVideoVisibleVideoSize.call(this,clientWidth,clientHeight,videoWidth,videoHeight,aspectRatio,use80Percent);var newVideoWidth=realVideoSize.w;var newVideoHeight=realVideoSize.h;var newVideoLeft=realVideoSize.x;var newVideoTop=realVideoSize.y;if(newVideoWidth!=actualVideoWidth||newVideoHeight!=actualVideoHeight||newVideoLeft!=actualVideoLeft||newVideoTop!=actualVideoTop||forceDrawing){actualVideoLeft=newVideoLeft+videoOffsetLeft;actualVideoTop=newVideoTop+videoOffsetTop;actualVideoWidth=newVideoWidth;actualVideoHeight=newVideoHeight;if(captionContainer){var containerStyle=captionContainer.style;if(containerStyle){containerStyle.left=actualVideoLeft+'px';containerStyle.top=actualVideoTop+'px';containerStyle.width=actualVideoWidth+'px';containerStyle.height=actualVideoHeight+'px';containerStyle.zIndex=fullscreenAttribute&&document[fullscreenAttribute]||displayCCOnTop?topZIndex:null;eventBus.trigger(_Events2.default.CAPTION_CONTAINER_RESIZE,{});}}// Video view has changed size, so resize any active cues\nvar activeCues=track.activeCues;if(activeCues){var len=activeCues.length;for(var i=0;i<len;++i){var cue=activeCues[i];cue.scaleCue(cue);}}}}}function scaleCue(activeCue){var videoWidth=actualVideoWidth;var videoHeight=actualVideoHeight;var key=void 0,replaceValue=void 0,valueFontSize=void 0,valueLineHeight=void 0,elements=void 0;if(activeCue.cellResolution){var cellUnit=[videoWidth/activeCue.cellResolution[0],videoHeight/activeCue.cellResolution[1]];if(activeCue.linePadding){for(key in activeCue.linePadding){if(activeCue.linePadding.hasOwnProperty(key)){var valueLinePadding=activeCue.linePadding[key];replaceValue=(valueLinePadding*cellUnit[0]).toString();// Compute the CellResolution unit in order to process properties using sizing (fontSize, linePadding, etc).\nvar elementsSpan=document.getElementsByClassName('spanPadding');for(var i=0;i<elementsSpan.length;i++){elementsSpan[i].style.cssText=elementsSpan[i].style.cssText.replace(/(padding-left\\s*:\\s*)[\\d.,]+(?=\\s*px)/gi,'$1'+replaceValue);elementsSpan[i].style.cssText=elementsSpan[i].style.cssText.replace(/(padding-right\\s*:\\s*)[\\d.,]+(?=\\s*px)/gi,'$1'+replaceValue);}}}}if(activeCue.fontSize){for(key in activeCue.fontSize){if(activeCue.fontSize.hasOwnProperty(key)){if(activeCue.fontSize[key][0]==='%'){valueFontSize=activeCue.fontSize[key][1]/100;}else if(activeCue.fontSize[key][0]==='c'){valueFontSize=activeCue.fontSize[key][1];}replaceValue=(valueFontSize*cellUnit[1]).toString();if(key!=='defaultFontSize'){elements=document.getElementsByClassName(key);}else{elements=document.getElementsByClassName('paragraph');}for(var j=0;j<elements.length;j++){elements[j].style.cssText=elements[j].style.cssText.replace(/(font-size\\s*:\\s*)[\\d.,]+(?=\\s*px)/gi,'$1'+replaceValue);}}}if(activeCue.lineHeight){for(key in activeCue.lineHeight){if(activeCue.lineHeight.hasOwnProperty(key)){if(activeCue.lineHeight[key][0]==='%'){valueLineHeight=activeCue.lineHeight[key][1]/100;}else if(activeCue.fontSize[key][0]==='c'){valueLineHeight=activeCue.lineHeight[key][1];}replaceValue=(valueLineHeight*cellUnit[1]).toString();elements=document.getElementsByClassName(key);for(var k=0;k<elements.length;k++){elements[k].style.cssText=elements[k].style.cssText.replace(/(line-height\\s*:\\s*)[\\d.,]+(?=\\s*px)/gi,'$1'+replaceValue);}}}}}}if(activeCue.isd){var htmlCaptionDiv=document.getElementById(activeCue.cueID);if(htmlCaptionDiv){captionContainer.removeChild(htmlCaptionDiv);}renderCaption(activeCue);}}function renderCaption(cue){if(captionContainer){var finalCue=document.createElement('div');captionContainer.appendChild(finalCue);previousISDState=(0,_imsc.renderHTML)(cue.isd,finalCue,function(uri){var imsc1ImgUrnTester=/^(urn:)(mpeg:[a-z0-9][a-z0-9-]{0,31}:)(subs:)([0-9]+)$/;var smpteImgUrnTester=/^#(.*)$/;if(imsc1ImgUrnTester.test(uri)){var match=imsc1ImgUrnTester.exec(uri);var imageId=parseInt(match[4],10)-1;var imageData=btoa(cue.images[imageId]);var dataUrl='data:image/png;base64,'+imageData;return dataUrl;}else if(smpteImgUrnTester.test(uri)){var _match=smpteImgUrnTester.exec(uri);var _imageId=_match[1];var _dataUrl='data:image/png;base64,'+cue.embeddedImages[_imageId];return _dataUrl;}else{return null;}},captionContainer.clientHeight,captionContainer.clientWidth,false/*displayForcedOnlyMode*/,function(err){logger.info('renderCaption :',err);//TODO add ErrorHandler management\n},previousISDState,true/*enableRollUp*/);finalCue.id=cue.cueID;eventBus.trigger(_Events2.default.CAPTION_RENDERED,{captionDiv:finalCue,currentTrackIdx:currentTrackIdx});}}/*\n     * Add captions to track, store for later adding, or add captions added before\n     */function addCaptions(trackIdx,timeOffset,captionData){var track=getTrackByIdx(trackIdx);var self=this;if(!track){return;}if(!Array.isArray(captionData)||captionData.length===0){return;}for(var item=0;item<captionData.length;item++){var cue=void 0;var currentItem=captionData[item];track.cellResolution=currentItem.cellResolution;track.isFromCEA608=currentItem.isFromCEA608;if(currentItem.type==='html'&&captionContainer){cue=new Cue(currentItem.start-timeOffset,currentItem.end-timeOffset,'');cue.cueHTMLElement=currentItem.cueHTMLElement;cue.isd=currentItem.isd;cue.images=currentItem.images;cue.embeddedImages=currentItem.embeddedImages;cue.cueID=currentItem.cueID;cue.scaleCue=scaleCue.bind(self);//useful parameters for cea608 subtitles, not for TTML one.\ncue.cellResolution=currentItem.cellResolution;cue.lineHeight=currentItem.lineHeight;cue.linePadding=currentItem.linePadding;cue.fontSize=currentItem.fontSize;captionContainer.style.left=actualVideoLeft+'px';captionContainer.style.top=actualVideoTop+'px';captionContainer.style.width=actualVideoWidth+'px';captionContainer.style.height=actualVideoHeight+'px';cue.onenter=function(){if(track.mode===_Constants2.default.TEXT_SHOWING){if(this.isd){renderCaption(this);logger.debug('Cue enter id:'+this.cueID);}else{captionContainer.appendChild(this.cueHTMLElement);scaleCue.call(self,this);eventBus.trigger(_Events2.default.CAPTION_RENDERED,{captionDiv:this.cueHTMLElement,currentTrackIdx:currentTrackIdx});}}};cue.onexit=function(){if(captionContainer){var divs=captionContainer.childNodes;for(var i=0;i<divs.length;++i){if(divs[i].id===this.cueID){logger.debug('Cue exit id:'+divs[i].id);captionContainer.removeChild(divs[i]);--i;}}}};}else{if(currentItem.data){cue=new Cue(currentItem.start-timeOffset,currentItem.end-timeOffset,currentItem.data);if(currentItem.styles){if(currentItem.styles.align!==undefined&&'align'in cue){cue.align=currentItem.styles.align;}if(currentItem.styles.line!==undefined&&'line'in cue){cue.line=currentItem.styles.line;}if(currentItem.styles.position!==undefined&&'position'in cue){cue.position=currentItem.styles.position;}if(currentItem.styles.size!==undefined&&'size'in cue){cue.size=currentItem.styles.size;}}cue.onenter=function(){if(track.mode===_Constants2.default.TEXT_SHOWING){eventBus.trigger(_Events2.default.CAPTION_RENDERED,{currentTrackIdx:currentTrackIdx});}};}}try{if(cue){track.addCue(cue);}else{logger.error('impossible to display subtitles.');}}catch(e){// Edge crash, delete everything and start adding again\n// @see https://developer.microsoft.com/en-us/microsoft-edge/platform/issues/11979877/\ndeleteTrackCues(track);track.addCue(cue);throw e;}}}function getTrackByIdx(idx){return idx>=0&&textTrackQueue[idx]?videoModel.getTextTrack(textTrackQueue[idx].kind,textTrackQueue[idx].id,textTrackQueue[idx].lang,textTrackQueue[idx].isTTML,textTrackQueue[idx].isEmbedded):null;}function getCurrentTrackIdx(){return currentTrackIdx;}function getTrackIdxForId(trackId){var idx=-1;for(var i=0;i<textTrackQueue.length;i++){if(textTrackQueue[i].id===trackId){idx=i;break;}}return idx;}function setCurrentTrackIdx(idx){if(idx===currentTrackIdx){return;}currentTrackIdx=idx;var track=getTrackByIdx(currentTrackIdx);setCueStyleOnTrack.call(this,track);if(videoSizeCheckInterval){clearInterval(videoSizeCheckInterval);videoSizeCheckInterval=null;}if(track&&track.renderingType==='html'){checkVideoSize.call(this,track,true);videoSizeCheckInterval=setInterval(checkVideoSize.bind(this,track),500);}}function setCueStyleOnTrack(track){clearCaptionContainer.call(this);if(track){if(track.renderingType==='html'){setNativeCueStyle.call(this);}else{removeNativeCueStyle.call(this);}}else{removeNativeCueStyle.call(this);}}function cueInRange(cue,start,end){return(isNaN(start)||cue.startTime>=start)&&(isNaN(end)||cue.endTime<=end);}function deleteTrackCues(track,start,end){if(track.cues){var cues=track.cues;var lastIdx=cues.length-1;for(var r=lastIdx;r>=0;r--){if(cueInRange(cues[r],start,end)){track.removeCue(cues[r]);}}}}function deleteCuesFromTrackIdx(trackIdx,start,end){var track=getTrackByIdx(trackIdx);if(track){deleteTrackCues(track,start,end);}}function deleteAllTextTracks(){var ln=trackElementArr?trackElementArr.length:0;for(var i=0;i<ln;i++){var track=getTrackByIdx(i);if(track){deleteTrackCues.call(this,track);track.mode='disabled';}}trackElementArr=[];textTrackQueue=[];if(videoSizeCheckInterval){clearInterval(videoSizeCheckInterval);videoSizeCheckInterval=null;}currentTrackIdx=-1;clearCaptionContainer.call(this);}function deleteTextTrack(idx){videoModel.removeChild(trackElementArr[idx]);trackElementArr.splice(idx,1);}/* Set native cue style to transparent background to avoid it being displayed. */function setNativeCueStyle(){var styleElement=document.getElementById('native-cue-style');if(styleElement){return;//Already set\n}styleElement=document.createElement('style');styleElement.id='native-cue-style';document.head.appendChild(styleElement);var stylesheet=styleElement.sheet;var video=videoModel.getElement();try{if(video){if(video.id){stylesheet.insertRule('#'+video.id+'::cue {background: transparent}',0);}else if(video.classList.length!==0){stylesheet.insertRule('.'+video.className+'::cue {background: transparent}',0);}else{stylesheet.insertRule('video::cue {background: transparent}',0);}}}catch(e){logger.info(''+e.message);}}/* Remove the extra cue style with transparent background for native cues. */function removeNativeCueStyle(){var styleElement=document.getElementById('native-cue-style');if(styleElement){document.head.removeChild(styleElement);}}function clearCaptionContainer(){if(captionContainer){while(captionContainer.firstChild){captionContainer.removeChild(captionContainer.firstChild);}}}function setConfig(config){if(!config){return;}if(config.videoModel){videoModel=config.videoModel;}}function setModeForTrackIdx(idx,mode){var track=getTrackByIdx(idx);if(track&&track.mode!==mode){track.mode=mode;}}function getCurrentTrackInfo(){return textTrackQueue[currentTrackIdx];}instance={initialize:initialize,setDisplayCConTop:setDisplayCConTop,addTextTrack:addTextTrack,addCaptions:addCaptions,getCurrentTrackIdx:getCurrentTrackIdx,setCurrentTrackIdx:setCurrentTrackIdx,getTrackIdxForId:getTrackIdxForId,getCurrentTrackInfo:getCurrentTrackInfo,setModeForTrackIdx:setModeForTrackIdx,deleteCuesFromTrackIdx:deleteCuesFromTrackIdx,deleteAllTextTracks:deleteAllTextTracks,deleteTextTrack:deleteTextTrack,setConfig:setConfig};setup();return instance;}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n */TextTracks.__dashjs_factory_name='TextTracks';exports.default=_FactoryMaker2.default.getSingletonFactory(TextTracks);\n//# sourceMappingURL=TextTracks.js.map\n","var topLevel = typeof global !== 'undefined' ? global :\n    typeof window !== 'undefined' ? window : {}\nvar minDoc = require('min-document');\n\nvar doccy;\n\nif (typeof document !== 'undefined') {\n    doccy = document;\n} else {\n    doccy = topLevel['__GLOBAL_DOCUMENT_CACHE@4'];\n\n    if (!doccy) {\n        doccy = topLevel['__GLOBAL_DOCUMENT_CACHE@4'] = minDoc;\n    }\n}\n\nmodule.exports = doccy;\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _Debug=require('../core/Debug');var _Debug2=_interopRequireDefault(_Debug);var _FactoryMaker=require('../core/FactoryMaker');var _FactoryMaker2=_interopRequireDefault(_FactoryMaker);function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}/**\n * This is a sink that is used to temporarily hold onto media chunks before a video element is added.\n * The discharge() function is used to get the chunks out of the PreBuffer for adding to a real SourceBuffer.\n *\n * @class PreBufferSink\n * @ignore\n * @implements FragmentSink\n *//**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n */function PreBufferSink(onAppendedCallback){var context=this.context;var instance=void 0,logger=void 0,outstandingInit=void 0;var chunks=[];var onAppended=onAppendedCallback;function setup(){logger=(0,_Debug2.default)(context).getInstance().getLogger(instance);}function reset(){chunks=[];outstandingInit=null;onAppended=null;}function append(chunk){if(chunk.segmentType!=='InitializationSegment'){//Init segments are stored in the initCache.\nchunks.push(chunk);chunks.sort(function(a,b){return a.start-b.start;});outstandingInit=null;}else{//We need to hold an init chunk for when a corresponding media segment is being downloaded when the discharge happens.\noutstandingInit=chunk;}logger.debug('PreBufferSink appended chunk s: '+chunk.start+'; e: '+chunk.end);if(onAppended){onAppended({chunk:chunk});}}function remove(start,end){chunks=chunks.filter(function(a){return!((isNaN(end)||a.start<end)&&(isNaN(start)||a.end>start));});//The opposite of the getChunks predicate.\n}//Nothing async, nothing to abort.\nfunction abort(){}function getAllBufferRanges(){var ranges=[];for(var i=0;i<chunks.length;i++){var chunk=chunks[i];if(ranges.length===0||chunk.start>ranges[ranges.length-1].end){ranges.push({start:chunk.start,end:chunk.end});}else{ranges[ranges.length-1].end=chunk.end;}}//Implements TimeRanges interface. So acts just like sourceBuffer.buffered.\nvar timeranges={start:function start(n){return ranges[n].start;},end:function end(n){return ranges[n].end;}};Object.defineProperty(timeranges,'length',{get:function get(){return ranges.length;}});return timeranges;}function hasDiscontinuitiesAfter(){return false;}function updateTimestampOffset(){// Nothing to do\n}function getBuffer(){return this;}/**\n     * Return the all chunks in the buffer the lie between times start and end.\n     * Because a chunk cannot be split, this returns the full chunk if any part of its time lies in the requested range.\n     * Chunks are removed from the buffer when they are discharged.\n     * @function PreBufferSink#discharge\n     * @param {?Number} start The start time from which to discharge from the buffer. If NaN, it is regarded as unbounded.\n     * @param {?Number} end The end time from which to discharge from the buffer. If NaN, it is regarded as unbounded.\n     * @returns {Array} The set of chunks from the buffer within the time ranges.\n     */function discharge(start,end){var result=getChunksAt(start,end);if(outstandingInit){result.push(outstandingInit);outstandingInit=null;}remove(start,end);return result;}function getChunksAt(start,end){return chunks.filter(function(a){return(isNaN(end)||a.start<end)&&(isNaN(start)||a.end>start);});}function waitForUpdateEnd(callback){callback();}instance={getAllBufferRanges:getAllBufferRanges,append:append,remove:remove,abort:abort,discharge:discharge,reset:reset,updateTimestampOffset:updateTimestampOffset,hasDiscontinuitiesAfter:hasDiscontinuitiesAfter,waitForUpdateEnd:waitForUpdateEnd,getBuffer:getBuffer};setup();return instance;}PreBufferSink.__dashjs_factory_name='PreBufferSink';var factory=_FactoryMaker2.default.getClassFactory(PreBufferSink);exports.default=factory;\n//# sourceMappingURL=PreBufferSink.js.map\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});function _classCallCheck(instance,Constructor){if(!(instance instanceof Constructor)){throw new TypeError(\"Cannot call a class as a function\");}}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n *//**\n * @class\n * @ignore\n */var ThumbnailTrackInfo=function ThumbnailTrackInfo(){_classCallCheck(this,ThumbnailTrackInfo);this.bitrate=0;this.width=0;this.height=0;this.tilesHor=0;this.tilesVert=0;this.widthPerTile=0;this.heightPerTile=0;this.startNumber=0;this.segmentDuration=0;this.timescale=0;this.templateUrl='';this.id='';};exports.default=ThumbnailTrackInfo;\n//# sourceMappingURL=ThumbnailTrackInfo.js.map\n","'use strict';\nvar aFunction = require('../internals/a-function');\n\nvar PromiseCapability = function (C) {\n  var resolve, reject;\n  this.promise = new C(function ($$resolve, $$reject) {\n    if (resolve !== undefined || reject !== undefined) throw TypeError('Bad Promise constructor');\n    resolve = $$resolve;\n    reject = $$reject;\n  });\n  this.resolve = aFunction(resolve);\n  this.reject = aFunction(reject);\n};\n\n// 25.4.1.5 NewPromiseCapability(C)\nmodule.exports.f = function (C) {\n  return new PromiseCapability(C);\n};\n","import { stringToBytes, toUint8, bytesMatch, bytesToString, toHexString, padStart, bytesToNumber } from './byte-helpers.js';\nimport { getAvcCodec, getHvcCodec, getAv1Codec } from './codec-helpers.js';\nimport { parseOpusHead } from './opus-helpers.js';\n\nvar normalizePath = function normalizePath(path) {\n  if (typeof path === 'string') {\n    return stringToBytes(path);\n  }\n\n  if (typeof path === 'number') {\n    return path;\n  }\n\n  return path;\n};\n\nvar normalizePaths = function normalizePaths(paths) {\n  if (!Array.isArray(paths)) {\n    return [normalizePath(paths)];\n  }\n\n  return paths.map(function (p) {\n    return normalizePath(p);\n  });\n};\n\nvar DESCRIPTORS;\nexport var parseDescriptors = function parseDescriptors(bytes) {\n  bytes = toUint8(bytes);\n  var results = [];\n  var i = 0;\n\n  while (bytes.length > i) {\n    var tag = bytes[i];\n    var size = 0;\n    var headerSize = 0; // tag\n\n    headerSize++;\n    var byte = bytes[headerSize]; // first byte\n\n    headerSize++;\n\n    while (byte & 0x80) {\n      size = (byte & 0x7F) << 7;\n      byte = bytes[headerSize];\n      headerSize++;\n    }\n\n    size += byte & 0x7F;\n\n    for (var z = 0; z < DESCRIPTORS.length; z++) {\n      var _DESCRIPTORS$z = DESCRIPTORS[z],\n          id = _DESCRIPTORS$z.id,\n          parser = _DESCRIPTORS$z.parser;\n\n      if (tag === id) {\n        results.push(parser(bytes.subarray(headerSize, headerSize + size)));\n        break;\n      }\n    }\n\n    i += size + headerSize;\n  }\n\n  return results;\n};\nDESCRIPTORS = [{\n  id: 0x03,\n  parser: function parser(bytes) {\n    var desc = {\n      tag: 0x03,\n      id: bytes[0] << 8 | bytes[1],\n      flags: bytes[2],\n      size: 3,\n      dependsOnEsId: 0,\n      ocrEsId: 0,\n      descriptors: [],\n      url: ''\n    }; // depends on es id\n\n    if (desc.flags & 0x80) {\n      desc.dependsOnEsId = bytes[desc.size] << 8 | bytes[desc.size + 1];\n      desc.size += 2;\n    } // url\n\n\n    if (desc.flags & 0x40) {\n      var len = bytes[desc.size];\n      desc.url = bytesToString(bytes.subarray(desc.size + 1, desc.size + 1 + len));\n      desc.size += len;\n    } // ocr es id\n\n\n    if (desc.flags & 0x20) {\n      desc.ocrEsId = bytes[desc.size] << 8 | bytes[desc.size + 1];\n      desc.size += 2;\n    }\n\n    desc.descriptors = parseDescriptors(bytes.subarray(desc.size)) || [];\n    return desc;\n  }\n}, {\n  id: 0x04,\n  parser: function parser(bytes) {\n    // DecoderConfigDescriptor\n    var desc = {\n      tag: 0x04,\n      oti: bytes[0],\n      streamType: bytes[1],\n      bufferSize: bytes[2] << 16 | bytes[3] << 8 | bytes[4],\n      maxBitrate: bytes[5] << 24 | bytes[6] << 16 | bytes[7] << 8 | bytes[8],\n      avgBitrate: bytes[9] << 24 | bytes[10] << 16 | bytes[11] << 8 | bytes[12],\n      descriptors: parseDescriptors(bytes.subarray(13))\n    };\n    return desc;\n  }\n}, {\n  id: 0x05,\n  parser: function parser(bytes) {\n    // DecoderSpecificInfo\n    return {\n      tag: 0x05,\n      bytes: bytes\n    };\n  }\n}, {\n  id: 0x06,\n  parser: function parser(bytes) {\n    // SLConfigDescriptor\n    return {\n      tag: 0x06,\n      bytes: bytes\n    };\n  }\n}];\n/**\n * find any number of boxes by name given a path to it in an iso bmff\n * such as mp4.\n *\n * @param {TypedArray} bytes\n *        bytes for the iso bmff to search for boxes in\n *\n * @param {Uint8Array[]|string[]|string|Uint8Array} name\n *        An array of paths or a single path representing the name\n *        of boxes to search through in bytes. Paths may be\n *        uint8 (character codes) or strings.\n *\n * @param {boolean} [complete=false]\n *        Should we search only for complete boxes on the final path.\n *        This is very useful when you do not want to get back partial boxes\n *        in the case of streaming files.\n *\n * @return {Uint8Array[]}\n *         An array of the end paths that we found.\n */\n\nexport var findBox = function findBox(bytes, paths, complete) {\n  if (complete === void 0) {\n    complete = false;\n  }\n\n  paths = normalizePaths(paths);\n  bytes = toUint8(bytes);\n  var results = [];\n\n  if (!paths.length) {\n    // short-circuit the search for empty paths\n    return results;\n  }\n\n  var i = 0;\n\n  while (i < bytes.length) {\n    var size = (bytes[i] << 24 | bytes[i + 1] << 16 | bytes[i + 2] << 8 | bytes[i + 3]) >>> 0;\n    var type = bytes.subarray(i + 4, i + 8); // invalid box format.\n\n    if (size === 0) {\n      break;\n    }\n\n    var end = i + size;\n\n    if (end > bytes.length) {\n      // this box is bigger than the number of bytes we have\n      // and complete is set, we cannot find any more boxes.\n      if (complete) {\n        break;\n      }\n\n      end = bytes.length;\n    }\n\n    var data = bytes.subarray(i + 8, end);\n\n    if (bytesMatch(type, paths[0])) {\n      if (paths.length === 1) {\n        // this is the end of the path and we've found the box we were\n        // looking for\n        results.push(data);\n      } else {\n        // recursively search for the next box along the path\n        results.push.apply(results, findBox(data, paths.slice(1), complete));\n      }\n    }\n\n    i = end;\n  } // we've finished searching all of bytes\n\n\n  return results;\n};\n/**\n * Search for a single matching box by name in an iso bmff format like\n * mp4. This function is useful for finding codec boxes which\n * can be placed arbitrarily in sample descriptions depending\n * on the version of the file or file type.\n *\n * @param {TypedArray} bytes\n *        bytes for the iso bmff to search for boxes in\n *\n * @param {string|Uint8Array} name\n *        The name of the box to find.\n *\n * @return {Uint8Array[]}\n *         a subarray of bytes representing the name boxed we found.\n */\n\nexport var findNamedBox = function findNamedBox(bytes, name) {\n  name = normalizePath(name);\n\n  if (!name.length) {\n    // short-circuit the search for empty paths\n    return bytes.subarray(bytes.length);\n  }\n\n  var i = 0;\n\n  while (i < bytes.length) {\n    if (bytesMatch(bytes.subarray(i, i + name.length), name)) {\n      var size = (bytes[i - 4] << 24 | bytes[i - 3] << 16 | bytes[i - 2] << 8 | bytes[i - 1]) >>> 0;\n      var end = size > 1 ? i + size : bytes.byteLength;\n      return bytes.subarray(i + 4, end);\n    }\n\n    i++;\n  } // we've finished searching all of bytes\n\n\n  return bytes.subarray(bytes.length);\n};\n\nvar parseSamples = function parseSamples(data, entrySize, parseEntry) {\n  if (entrySize === void 0) {\n    entrySize = 4;\n  }\n\n  if (parseEntry === void 0) {\n    parseEntry = function parseEntry(d) {\n      return bytesToNumber(d);\n    };\n  }\n\n  var entries = [];\n\n  if (!data || !data.length) {\n    return entries;\n  }\n\n  var entryCount = bytesToNumber(data.subarray(4, 8));\n\n  for (var i = 8; entryCount; i += entrySize, entryCount--) {\n    entries.push(parseEntry(data.subarray(i, i + entrySize)));\n  }\n\n  return entries;\n};\n\nexport var buildFrameTable = function buildFrameTable(stbl, timescale) {\n  var keySamples = parseSamples(findBox(stbl, ['stss'])[0]);\n  var chunkOffsets = parseSamples(findBox(stbl, ['stco'])[0]);\n  var timeToSamples = parseSamples(findBox(stbl, ['stts'])[0], 8, function (entry) {\n    return {\n      sampleCount: bytesToNumber(entry.subarray(0, 4)),\n      sampleDelta: bytesToNumber(entry.subarray(4, 8))\n    };\n  });\n  var samplesToChunks = parseSamples(findBox(stbl, ['stsc'])[0], 12, function (entry) {\n    return {\n      firstChunk: bytesToNumber(entry.subarray(0, 4)),\n      samplesPerChunk: bytesToNumber(entry.subarray(4, 8)),\n      sampleDescriptionIndex: bytesToNumber(entry.subarray(8, 12))\n    };\n  });\n  var stsz = findBox(stbl, ['stsz'])[0]; // stsz starts with a 4 byte sampleSize which we don't need\n\n  var sampleSizes = parseSamples(stsz && stsz.length && stsz.subarray(4) || null);\n  var frames = [];\n\n  for (var chunkIndex = 0; chunkIndex < chunkOffsets.length; chunkIndex++) {\n    var samplesInChunk = void 0;\n\n    for (var i = 0; i < samplesToChunks.length; i++) {\n      var sampleToChunk = samplesToChunks[i];\n      var isThisOne = chunkIndex + 1 >= sampleToChunk.firstChunk && (i + 1 >= samplesToChunks.length || chunkIndex + 1 < samplesToChunks[i + 1].firstChunk);\n\n      if (isThisOne) {\n        samplesInChunk = sampleToChunk.samplesPerChunk;\n        break;\n      }\n    }\n\n    var chunkOffset = chunkOffsets[chunkIndex];\n\n    for (var _i = 0; _i < samplesInChunk; _i++) {\n      var frameEnd = sampleSizes[frames.length]; // if we don't have key samples every frame is a keyframe\n\n      var keyframe = !keySamples.length;\n\n      if (keySamples.length && keySamples.indexOf(frames.length + 1) !== -1) {\n        keyframe = true;\n      }\n\n      var frame = {\n        keyframe: keyframe,\n        start: chunkOffset,\n        end: chunkOffset + frameEnd\n      };\n\n      for (var k = 0; k < timeToSamples.length; k++) {\n        var _timeToSamples$k = timeToSamples[k],\n            sampleCount = _timeToSamples$k.sampleCount,\n            sampleDelta = _timeToSamples$k.sampleDelta;\n\n        if (frames.length <= sampleCount) {\n          // ms to ns\n          var lastTimestamp = frames.length ? frames[frames.length - 1].timestamp : 0;\n          frame.timestamp = lastTimestamp + sampleDelta / timescale * 1000;\n          frame.duration = sampleDelta;\n          break;\n        }\n      }\n\n      frames.push(frame);\n      chunkOffset += frameEnd;\n    }\n  }\n\n  return frames;\n};\nexport var addSampleDescription = function addSampleDescription(track, bytes) {\n  var codec = bytesToString(bytes.subarray(0, 4));\n\n  if (track.type === 'video') {\n    track.info = track.info || {};\n    track.info.width = bytes[28] << 8 | bytes[29];\n    track.info.height = bytes[30] << 8 | bytes[31];\n  } else if (track.type === 'audio') {\n    track.info = track.info || {};\n    track.info.channels = bytes[20] << 8 | bytes[21];\n    track.info.bitDepth = bytes[22] << 8 | bytes[23];\n    track.info.sampleRate = bytes[28] << 8 | bytes[29];\n  }\n\n  if (codec === 'avc1') {\n    var avcC = findNamedBox(bytes, 'avcC'); // AVCDecoderConfigurationRecord\n\n    codec += \".\" + getAvcCodec(avcC);\n    track.info.avcC = avcC; // TODO: do we need to parse all this?\n\n    /* {\n      configurationVersion: avcC[0],\n      profile: avcC[1],\n      profileCompatibility: avcC[2],\n      level: avcC[3],\n      lengthSizeMinusOne: avcC[4] & 0x3\n    };\n     let spsNalUnitCount = avcC[5] & 0x1F;\n    const spsNalUnits = track.info.avc.spsNalUnits = [];\n     // past spsNalUnitCount\n    let offset = 6;\n     while (spsNalUnitCount--) {\n      const nalLen = avcC[offset] << 8 | avcC[offset + 1];\n       spsNalUnits.push(avcC.subarray(offset + 2, offset + 2 + nalLen));\n       offset += nalLen + 2;\n    }\n    let ppsNalUnitCount = avcC[offset];\n    const ppsNalUnits = track.info.avc.ppsNalUnits = [];\n     // past ppsNalUnitCount\n    offset += 1;\n     while (ppsNalUnitCount--) {\n      const nalLen = avcC[offset] << 8 | avcC[offset + 1];\n       ppsNalUnits.push(avcC.subarray(offset + 2, offset + 2 + nalLen));\n       offset += nalLen + 2;\n    }*/\n    // HEVCDecoderConfigurationRecord\n  } else if (codec === 'hvc1' || codec === 'hev1') {\n    codec += \".\" + getHvcCodec(findNamedBox(bytes, 'hvcC'));\n  } else if (codec === 'mp4a' || codec === 'mp4v') {\n    var esds = findNamedBox(bytes, 'esds');\n    var esDescriptor = parseDescriptors(esds.subarray(4))[0];\n    var decoderConfig = esDescriptor && esDescriptor.descriptors.filter(function (_ref) {\n      var tag = _ref.tag;\n      return tag === 0x04;\n    })[0];\n\n    if (decoderConfig) {\n      // most codecs do not have a further '.'\n      // such as 0xa5 for ac-3 and 0xa6 for e-ac-3\n      codec += '.' + toHexString(decoderConfig.oti);\n\n      if (decoderConfig.oti === 0x40) {\n        codec += '.' + (decoderConfig.descriptors[0].bytes[0] >> 3).toString();\n      } else if (decoderConfig.oti === 0x20) {\n        codec += '.' + decoderConfig.descriptors[0].bytes[4].toString();\n      } else if (decoderConfig.oti === 0xdd) {\n        codec = 'vorbis';\n      }\n    } else if (track.type === 'audio') {\n      codec += '.40.2';\n    } else {\n      codec += '.20.9';\n    }\n  } else if (codec === 'av01') {\n    // AV1DecoderConfigurationRecord\n    codec += \".\" + getAv1Codec(findNamedBox(bytes, 'av1C'));\n  } else if (codec === 'vp09') {\n    // VPCodecConfigurationRecord\n    var vpcC = findNamedBox(bytes, 'vpcC'); // https://www.webmproject.org/vp9/mp4/\n\n    var profile = vpcC[0];\n    var level = vpcC[1];\n    var bitDepth = vpcC[2] >> 4;\n    var chromaSubsampling = (vpcC[2] & 0x0F) >> 1;\n    var videoFullRangeFlag = (vpcC[2] & 0x0F) >> 3;\n    var colourPrimaries = vpcC[3];\n    var transferCharacteristics = vpcC[4];\n    var matrixCoefficients = vpcC[5];\n    codec += \".\" + padStart(profile, 2, '0');\n    codec += \".\" + padStart(level, 2, '0');\n    codec += \".\" + padStart(bitDepth, 2, '0');\n    codec += \".\" + padStart(chromaSubsampling, 2, '0');\n    codec += \".\" + padStart(colourPrimaries, 2, '0');\n    codec += \".\" + padStart(transferCharacteristics, 2, '0');\n    codec += \".\" + padStart(matrixCoefficients, 2, '0');\n    codec += \".\" + padStart(videoFullRangeFlag, 2, '0');\n  } else if (codec === 'theo') {\n    codec = 'theora';\n  } else if (codec === 'spex') {\n    codec = 'speex';\n  } else if (codec === '.mp3') {\n    codec = 'mp4a.40.34';\n  } else if (codec === 'msVo') {\n    codec = 'vorbis';\n  } else if (codec === 'Opus') {\n    codec = 'opus';\n    var dOps = findNamedBox(bytes, 'dOps');\n    track.info.opus = parseOpusHead(dOps); // TODO: should this go into the webm code??\n    // Firefox requires a codecDelay for opus playback\n    // see https://bugzilla.mozilla.org/show_bug.cgi?id=1276238\n\n    track.info.codecDelay = 6500000;\n  } else {\n    codec = codec.toLowerCase();\n  }\n  /* eslint-enable */\n  // flac, ac-3, ec-3, opus\n\n\n  track.codec = codec;\n};\nexport var parseTracks = function parseTracks(bytes, frameTable) {\n  if (frameTable === void 0) {\n    frameTable = true;\n  }\n\n  bytes = toUint8(bytes);\n  var traks = findBox(bytes, ['moov', 'trak'], true);\n  var tracks = [];\n  traks.forEach(function (trak) {\n    var track = {\n      bytes: trak\n    };\n    var mdia = findBox(trak, ['mdia'])[0];\n    var hdlr = findBox(mdia, ['hdlr'])[0];\n    var trakType = bytesToString(hdlr.subarray(8, 12));\n\n    if (trakType === 'soun') {\n      track.type = 'audio';\n    } else if (trakType === 'vide') {\n      track.type = 'video';\n    } else {\n      track.type = trakType;\n    }\n\n    var tkhd = findBox(trak, ['tkhd'])[0];\n\n    if (tkhd) {\n      var view = new DataView(tkhd.buffer, tkhd.byteOffset, tkhd.byteLength);\n      var tkhdVersion = view.getUint8(0);\n      track.number = tkhdVersion === 0 ? view.getUint32(12) : view.getUint32(20);\n    }\n\n    var mdhd = findBox(mdia, ['mdhd'])[0];\n\n    if (mdhd) {\n      // mdhd is a FullBox, meaning it will have its own version as the first byte\n      var version = mdhd[0];\n      var index = version === 0 ? 12 : 20;\n      track.timescale = (mdhd[index] << 24 | mdhd[index + 1] << 16 | mdhd[index + 2] << 8 | mdhd[index + 3]) >>> 0;\n    }\n\n    var stbl = findBox(mdia, ['minf', 'stbl'])[0];\n    var stsd = findBox(stbl, ['stsd'])[0];\n    var descriptionCount = bytesToNumber(stsd.subarray(4, 8));\n    var offset = 8; // add codec and codec info\n\n    while (descriptionCount--) {\n      var len = bytesToNumber(stsd.subarray(offset, offset + 4));\n      var sampleDescriptor = stsd.subarray(offset + 4, offset + 4 + len);\n      addSampleDescription(track, sampleDescriptor);\n      offset += 4 + len;\n    }\n\n    if (frameTable) {\n      track.frameTable = buildFrameTable(stbl, track.timescale);\n    } // codec has no sub parameters\n\n\n    tracks.push(track);\n  });\n  return tracks;\n};\nexport var parseMediaInfo = function parseMediaInfo(bytes) {\n  var mvhd = findBox(bytes, ['moov', 'mvhd'], true)[0];\n\n  if (!mvhd || !mvhd.length) {\n    return;\n  }\n\n  var info = {}; // ms to ns\n  // mvhd v1 has 8 byte duration and other fields too\n\n  if (mvhd[0] === 1) {\n    info.timestampScale = bytesToNumber(mvhd.subarray(20, 24));\n    info.duration = bytesToNumber(mvhd.subarray(24, 32));\n  } else {\n    info.timestampScale = bytesToNumber(mvhd.subarray(12, 16));\n    info.duration = bytesToNumber(mvhd.subarray(16, 20));\n  }\n\n  info.bytes = mvhd;\n  return info;\n};","import URLToolkit from 'url-toolkit';\nimport window from 'global/window';\nvar DEFAULT_LOCATION = 'http://example.com';\n\nvar resolveUrl = function resolveUrl(baseUrl, relativeUrl) {\n  // return early if we don't need to resolve\n  if (/^[a-z]+:/i.test(relativeUrl)) {\n    return relativeUrl;\n  } // if baseUrl is a data URI, ignore it and resolve everything relative to window.location\n\n\n  if (/^data:/.test(baseUrl)) {\n    baseUrl = window.location && window.location.href || '';\n  } // IE11 supports URL but not the URL constructor\n  // feature detect the behavior we want\n\n\n  var nativeURL = typeof window.URL === 'function';\n  var protocolLess = /^\\/\\//.test(baseUrl); // remove location if window.location isn't available (i.e. we're in node)\n  // and if baseUrl isn't an absolute url\n\n  var removeLocation = !window.location && !/\\/\\//i.test(baseUrl); // if the base URL is relative then combine with the current location\n\n  if (nativeURL) {\n    baseUrl = new window.URL(baseUrl, window.location || DEFAULT_LOCATION);\n  } else if (!/\\/\\//i.test(baseUrl)) {\n    baseUrl = URLToolkit.buildAbsoluteURL(window.location && window.location.href || '', baseUrl);\n  }\n\n  if (nativeURL) {\n    var newUrl = new URL(relativeUrl, baseUrl); // if we're a protocol-less url, remove the protocol\n    // and if we're location-less, remove the location\n    // otherwise, return the url unmodified\n\n    if (removeLocation) {\n      return newUrl.href.slice(DEFAULT_LOCATION.length);\n    } else if (protocolLess) {\n      return newUrl.href.slice(newUrl.protocol.length);\n    }\n\n    return newUrl.href;\n  }\n\n  return URLToolkit.buildAbsoluteURL(baseUrl, relativeUrl);\n};\n\nexport default resolveUrl;","/**\n * @file stream.js\n */\n\n/**\n * A lightweight readable stream implemention that handles event dispatching.\n *\n * @class Stream\n */\nvar Stream = /*#__PURE__*/function () {\n  function Stream() {\n    this.listeners = {};\n  }\n  /**\n   * Add a listener for a specified event type.\n   *\n   * @param {string} type the event name\n   * @param {Function} listener the callback to be invoked when an event of\n   * the specified type occurs\n   */\n\n\n  var _proto = Stream.prototype;\n\n  _proto.on = function on(type, listener) {\n    if (!this.listeners[type]) {\n      this.listeners[type] = [];\n    }\n\n    this.listeners[type].push(listener);\n  }\n  /**\n   * Remove a listener for a specified event type.\n   *\n   * @param {string} type the event name\n   * @param {Function} listener  a function previously registered for this\n   * type of event through `on`\n   * @return {boolean} if we could turn it off or not\n   */\n  ;\n\n  _proto.off = function off(type, listener) {\n    if (!this.listeners[type]) {\n      return false;\n    }\n\n    var index = this.listeners[type].indexOf(listener); // TODO: which is better?\n    // In Video.js we slice listener functions\n    // on trigger so that it does not mess up the order\n    // while we loop through.\n    //\n    // Here we slice on off so that the loop in trigger\n    // can continue using it's old reference to loop without\n    // messing up the order.\n\n    this.listeners[type] = this.listeners[type].slice(0);\n    this.listeners[type].splice(index, 1);\n    return index > -1;\n  }\n  /**\n   * Trigger an event of the specified type on this stream. Any additional\n   * arguments to this function are passed as parameters to event listeners.\n   *\n   * @param {string} type the event name\n   */\n  ;\n\n  _proto.trigger = function trigger(type) {\n    var callbacks = this.listeners[type];\n\n    if (!callbacks) {\n      return;\n    } // Slicing the arguments on every invocation of this method\n    // can add a significant amount of overhead. Avoid the\n    // intermediate object creation for the common case of a\n    // single callback argument\n\n\n    if (arguments.length === 2) {\n      var length = callbacks.length;\n\n      for (var i = 0; i < length; ++i) {\n        callbacks[i].call(this, arguments[1]);\n      }\n    } else {\n      var args = Array.prototype.slice.call(arguments, 1);\n      var _length = callbacks.length;\n\n      for (var _i = 0; _i < _length; ++_i) {\n        callbacks[_i].apply(this, args);\n      }\n    }\n  }\n  /**\n   * Destroys the stream and cleans up.\n   */\n  ;\n\n  _proto.dispose = function dispose() {\n    this.listeners = {};\n  }\n  /**\n   * Forwards all `data` events on this stream to the destination stream. The\n   * destination stream should provide a method `push` to receive the data\n   * events as they arrive.\n   *\n   * @param {Stream} destination the stream that will receive all `data` events\n   * @see http://nodejs.org/api/stream.html#stream_readable_pipe_destination_options\n   */\n  ;\n\n  _proto.pipe = function pipe(destination) {\n    this.on('data', function (data) {\n      destination.push(data);\n    });\n  };\n\n  return Stream;\n}();\n\nexport { Stream as default };","/*! @name m3u8-parser @version 4.7.0 @license Apache-2.0 */\nimport _inheritsLoose from '@babel/runtime/helpers/inheritsLoose';\nimport Stream from '@videojs/vhs-utils/es/stream.js';\nimport _extends from '@babel/runtime/helpers/extends';\nimport _assertThisInitialized from '@babel/runtime/helpers/assertThisInitialized';\nimport decodeB64ToUint8Array from '@videojs/vhs-utils/es/decode-b64-to-uint8-array.js';\n\n/**\n * A stream that buffers string input and generates a `data` event for each\n * line.\n *\n * @class LineStream\n * @extends Stream\n */\n\nvar LineStream = /*#__PURE__*/function (_Stream) {\n  _inheritsLoose(LineStream, _Stream);\n\n  function LineStream() {\n    var _this;\n\n    _this = _Stream.call(this) || this;\n    _this.buffer = '';\n    return _this;\n  }\n  /**\n   * Add new data to be parsed.\n   *\n   * @param {string} data the text to process\n   */\n\n\n  var _proto = LineStream.prototype;\n\n  _proto.push = function push(data) {\n    var nextNewline;\n    this.buffer += data;\n    nextNewline = this.buffer.indexOf('\\n');\n\n    for (; nextNewline > -1; nextNewline = this.buffer.indexOf('\\n')) {\n      this.trigger('data', this.buffer.substring(0, nextNewline));\n      this.buffer = this.buffer.substring(nextNewline + 1);\n    }\n  };\n\n  return LineStream;\n}(Stream);\n\nvar TAB = String.fromCharCode(0x09);\n\nvar parseByterange = function parseByterange(byterangeString) {\n  // optionally match and capture 0+ digits before `@`\n  // optionally match and capture 0+ digits after `@`\n  var match = /([0-9.]*)?@?([0-9.]*)?/.exec(byterangeString || '');\n  var result = {};\n\n  if (match[1]) {\n    result.length = parseInt(match[1], 10);\n  }\n\n  if (match[2]) {\n    result.offset = parseInt(match[2], 10);\n  }\n\n  return result;\n};\n/**\n * \"forgiving\" attribute list psuedo-grammar:\n * attributes -> keyvalue (',' keyvalue)*\n * keyvalue   -> key '=' value\n * key        -> [^=]*\n * value      -> '\"' [^\"]* '\"' | [^,]*\n */\n\n\nvar attributeSeparator = function attributeSeparator() {\n  var key = '[^=]*';\n  var value = '\"[^\"]*\"|[^,]*';\n  var keyvalue = '(?:' + key + ')=(?:' + value + ')';\n  return new RegExp('(?:^|,)(' + keyvalue + ')');\n};\n/**\n * Parse attributes from a line given the separator\n *\n * @param {string} attributes the attribute line to parse\n */\n\n\nvar parseAttributes = function parseAttributes(attributes) {\n  // split the string using attributes as the separator\n  var attrs = attributes.split(attributeSeparator());\n  var result = {};\n  var i = attrs.length;\n  var attr;\n\n  while (i--) {\n    // filter out unmatched portions of the string\n    if (attrs[i] === '') {\n      continue;\n    } // split the key and value\n\n\n    attr = /([^=]*)=(.*)/.exec(attrs[i]).slice(1); // trim whitespace and remove optional quotes around the value\n\n    attr[0] = attr[0].replace(/^\\s+|\\s+$/g, '');\n    attr[1] = attr[1].replace(/^\\s+|\\s+$/g, '');\n    attr[1] = attr[1].replace(/^['\"](.*)['\"]$/g, '$1');\n    result[attr[0]] = attr[1];\n  }\n\n  return result;\n};\n/**\n * A line-level M3U8 parser event stream. It expects to receive input one\n * line at a time and performs a context-free parse of its contents. A stream\n * interpretation of a manifest can be useful if the manifest is expected to\n * be too large to fit comfortably into memory or the entirety of the input\n * is not immediately available. Otherwise, it's probably much easier to work\n * with a regular `Parser` object.\n *\n * Produces `data` events with an object that captures the parser's\n * interpretation of the input. That object has a property `tag` that is one\n * of `uri`, `comment`, or `tag`. URIs only have a single additional\n * property, `line`, which captures the entirety of the input without\n * interpretation. Comments similarly have a single additional property\n * `text` which is the input without the leading `#`.\n *\n * Tags always have a property `tagType` which is the lower-cased version of\n * the M3U8 directive without the `#EXT` or `#EXT-X-` prefix. For instance,\n * `#EXT-X-MEDIA-SEQUENCE` becomes `media-sequence` when parsed. Unrecognized\n * tags are given the tag type `unknown` and a single additional property\n * `data` with the remainder of the input.\n *\n * @class ParseStream\n * @extends Stream\n */\n\n\nvar ParseStream = /*#__PURE__*/function (_Stream) {\n  _inheritsLoose(ParseStream, _Stream);\n\n  function ParseStream() {\n    var _this;\n\n    _this = _Stream.call(this) || this;\n    _this.customParsers = [];\n    _this.tagMappers = [];\n    return _this;\n  }\n  /**\n   * Parses an additional line of input.\n   *\n   * @param {string} line a single line of an M3U8 file to parse\n   */\n\n\n  var _proto = ParseStream.prototype;\n\n  _proto.push = function push(line) {\n    var _this2 = this;\n\n    var match;\n    var event; // strip whitespace\n\n    line = line.trim();\n\n    if (line.length === 0) {\n      // ignore empty lines\n      return;\n    } // URIs\n\n\n    if (line[0] !== '#') {\n      this.trigger('data', {\n        type: 'uri',\n        uri: line\n      });\n      return;\n    } // map tags\n\n\n    var newLines = this.tagMappers.reduce(function (acc, mapper) {\n      var mappedLine = mapper(line); // skip if unchanged\n\n      if (mappedLine === line) {\n        return acc;\n      }\n\n      return acc.concat([mappedLine]);\n    }, [line]);\n    newLines.forEach(function (newLine) {\n      for (var i = 0; i < _this2.customParsers.length; i++) {\n        if (_this2.customParsers[i].call(_this2, newLine)) {\n          return;\n        }\n      } // Comments\n\n\n      if (newLine.indexOf('#EXT') !== 0) {\n        _this2.trigger('data', {\n          type: 'comment',\n          text: newLine.slice(1)\n        });\n\n        return;\n      } // strip off any carriage returns here so the regex matching\n      // doesn't have to account for them.\n\n\n      newLine = newLine.replace('\\r', ''); // Tags\n\n      match = /^#EXTM3U/.exec(newLine);\n\n      if (match) {\n        _this2.trigger('data', {\n          type: 'tag',\n          tagType: 'm3u'\n        });\n\n        return;\n      }\n\n      match = /^#EXTINF:?([0-9\\.]*)?,?(.*)?$/.exec(newLine);\n\n      if (match) {\n        event = {\n          type: 'tag',\n          tagType: 'inf'\n        };\n\n        if (match[1]) {\n          event.duration = parseFloat(match[1]);\n        }\n\n        if (match[2]) {\n          event.title = match[2];\n        }\n\n        _this2.trigger('data', event);\n\n        return;\n      }\n\n      match = /^#EXT-X-TARGETDURATION:?([0-9.]*)?/.exec(newLine);\n\n      if (match) {\n        event = {\n          type: 'tag',\n          tagType: 'targetduration'\n        };\n\n        if (match[1]) {\n          event.duration = parseInt(match[1], 10);\n        }\n\n        _this2.trigger('data', event);\n\n        return;\n      }\n\n      match = /^#EXT-X-VERSION:?([0-9.]*)?/.exec(newLine);\n\n      if (match) {\n        event = {\n          type: 'tag',\n          tagType: 'version'\n        };\n\n        if (match[1]) {\n          event.version = parseInt(match[1], 10);\n        }\n\n        _this2.trigger('data', event);\n\n        return;\n      }\n\n      match = /^#EXT-X-MEDIA-SEQUENCE:?(\\-?[0-9.]*)?/.exec(newLine);\n\n      if (match) {\n        event = {\n          type: 'tag',\n          tagType: 'media-sequence'\n        };\n\n        if (match[1]) {\n          event.number = parseInt(match[1], 10);\n        }\n\n        _this2.trigger('data', event);\n\n        return;\n      }\n\n      match = /^#EXT-X-DISCONTINUITY-SEQUENCE:?(\\-?[0-9.]*)?/.exec(newLine);\n\n      if (match) {\n        event = {\n          type: 'tag',\n          tagType: 'discontinuity-sequence'\n        };\n\n        if (match[1]) {\n          event.number = parseInt(match[1], 10);\n        }\n\n        _this2.trigger('data', event);\n\n        return;\n      }\n\n      match = /^#EXT-X-PLAYLIST-TYPE:?(.*)?$/.exec(newLine);\n\n      if (match) {\n        event = {\n          type: 'tag',\n          tagType: 'playlist-type'\n        };\n\n        if (match[1]) {\n          event.playlistType = match[1];\n        }\n\n        _this2.trigger('data', event);\n\n        return;\n      }\n\n      match = /^#EXT-X-BYTERANGE:?(.*)?$/.exec(newLine);\n\n      if (match) {\n        event = _extends(parseByterange(match[1]), {\n          type: 'tag',\n          tagType: 'byterange'\n        });\n\n        _this2.trigger('data', event);\n\n        return;\n      }\n\n      match = /^#EXT-X-ALLOW-CACHE:?(YES|NO)?/.exec(newLine);\n\n      if (match) {\n        event = {\n          type: 'tag',\n          tagType: 'allow-cache'\n        };\n\n        if (match[1]) {\n          event.allowed = !/NO/.test(match[1]);\n        }\n\n        _this2.trigger('data', event);\n\n        return;\n      }\n\n      match = /^#EXT-X-MAP:?(.*)$/.exec(newLine);\n\n      if (match) {\n        event = {\n          type: 'tag',\n          tagType: 'map'\n        };\n\n        if (match[1]) {\n          var attributes = parseAttributes(match[1]);\n\n          if (attributes.URI) {\n            event.uri = attributes.URI;\n          }\n\n          if (attributes.BYTERANGE) {\n            event.byterange = parseByterange(attributes.BYTERANGE);\n          }\n        }\n\n        _this2.trigger('data', event);\n\n        return;\n      }\n\n      match = /^#EXT-X-STREAM-INF:?(.*)$/.exec(newLine);\n\n      if (match) {\n        event = {\n          type: 'tag',\n          tagType: 'stream-inf'\n        };\n\n        if (match[1]) {\n          event.attributes = parseAttributes(match[1]);\n\n          if (event.attributes.RESOLUTION) {\n            var split = event.attributes.RESOLUTION.split('x');\n            var resolution = {};\n\n            if (split[0]) {\n              resolution.width = parseInt(split[0], 10);\n            }\n\n            if (split[1]) {\n              resolution.height = parseInt(split[1], 10);\n            }\n\n            event.attributes.RESOLUTION = resolution;\n          }\n\n          if (event.attributes.BANDWIDTH) {\n            event.attributes.BANDWIDTH = parseInt(event.attributes.BANDWIDTH, 10);\n          }\n\n          if (event.attributes['PROGRAM-ID']) {\n            event.attributes['PROGRAM-ID'] = parseInt(event.attributes['PROGRAM-ID'], 10);\n          }\n        }\n\n        _this2.trigger('data', event);\n\n        return;\n      }\n\n      match = /^#EXT-X-MEDIA:?(.*)$/.exec(newLine);\n\n      if (match) {\n        event = {\n          type: 'tag',\n          tagType: 'media'\n        };\n\n        if (match[1]) {\n          event.attributes = parseAttributes(match[1]);\n        }\n\n        _this2.trigger('data', event);\n\n        return;\n      }\n\n      match = /^#EXT-X-ENDLIST/.exec(newLine);\n\n      if (match) {\n        _this2.trigger('data', {\n          type: 'tag',\n          tagType: 'endlist'\n        });\n\n        return;\n      }\n\n      match = /^#EXT-X-DISCONTINUITY/.exec(newLine);\n\n      if (match) {\n        _this2.trigger('data', {\n          type: 'tag',\n          tagType: 'discontinuity'\n        });\n\n        return;\n      }\n\n      match = /^#EXT-X-PROGRAM-DATE-TIME:?(.*)$/.exec(newLine);\n\n      if (match) {\n        event = {\n          type: 'tag',\n          tagType: 'program-date-time'\n        };\n\n        if (match[1]) {\n          event.dateTimeString = match[1];\n          event.dateTimeObject = new Date(match[1]);\n        }\n\n        _this2.trigger('data', event);\n\n        return;\n      }\n\n      match = /^#EXT-X-KEY:?(.*)$/.exec(newLine);\n\n      if (match) {\n        event = {\n          type: 'tag',\n          tagType: 'key'\n        };\n\n        if (match[1]) {\n          event.attributes = parseAttributes(match[1]); // parse the IV string into a Uint32Array\n\n          if (event.attributes.IV) {\n            if (event.attributes.IV.substring(0, 2).toLowerCase() === '0x') {\n              event.attributes.IV = event.attributes.IV.substring(2);\n            }\n\n            event.attributes.IV = event.attributes.IV.match(/.{8}/g);\n            event.attributes.IV[0] = parseInt(event.attributes.IV[0], 16);\n            event.attributes.IV[1] = parseInt(event.attributes.IV[1], 16);\n            event.attributes.IV[2] = parseInt(event.attributes.IV[2], 16);\n            event.attributes.IV[3] = parseInt(event.attributes.IV[3], 16);\n            event.attributes.IV = new Uint32Array(event.attributes.IV);\n          }\n        }\n\n        _this2.trigger('data', event);\n\n        return;\n      }\n\n      match = /^#EXT-X-START:?(.*)$/.exec(newLine);\n\n      if (match) {\n        event = {\n          type: 'tag',\n          tagType: 'start'\n        };\n\n        if (match[1]) {\n          event.attributes = parseAttributes(match[1]);\n          event.attributes['TIME-OFFSET'] = parseFloat(event.attributes['TIME-OFFSET']);\n          event.attributes.PRECISE = /YES/.test(event.attributes.PRECISE);\n        }\n\n        _this2.trigger('data', event);\n\n        return;\n      }\n\n      match = /^#EXT-X-CUE-OUT-CONT:?(.*)?$/.exec(newLine);\n\n      if (match) {\n        event = {\n          type: 'tag',\n          tagType: 'cue-out-cont'\n        };\n\n        if (match[1]) {\n          event.data = match[1];\n        } else {\n          event.data = '';\n        }\n\n        _this2.trigger('data', event);\n\n        return;\n      }\n\n      match = /^#EXT-X-CUE-OUT:?(.*)?$/.exec(newLine);\n\n      if (match) {\n        event = {\n          type: 'tag',\n          tagType: 'cue-out'\n        };\n\n        if (match[1]) {\n          event.data = match[1];\n        } else {\n          event.data = '';\n        }\n\n        _this2.trigger('data', event);\n\n        return;\n      }\n\n      match = /^#EXT-X-CUE-IN:?(.*)?$/.exec(newLine);\n\n      if (match) {\n        event = {\n          type: 'tag',\n          tagType: 'cue-in'\n        };\n\n        if (match[1]) {\n          event.data = match[1];\n        } else {\n          event.data = '';\n        }\n\n        _this2.trigger('data', event);\n\n        return;\n      }\n\n      match = /^#EXT-X-SKIP:(.*)$/.exec(newLine);\n\n      if (match && match[1]) {\n        event = {\n          type: 'tag',\n          tagType: 'skip'\n        };\n        event.attributes = parseAttributes(match[1]);\n\n        if (event.attributes.hasOwnProperty('SKIPPED-SEGMENTS')) {\n          event.attributes['SKIPPED-SEGMENTS'] = parseInt(event.attributes['SKIPPED-SEGMENTS'], 10);\n        }\n\n        if (event.attributes.hasOwnProperty('RECENTLY-REMOVED-DATERANGES')) {\n          event.attributes['RECENTLY-REMOVED-DATERANGES'] = event.attributes['RECENTLY-REMOVED-DATERANGES'].split(TAB);\n        }\n\n        _this2.trigger('data', event);\n\n        return;\n      }\n\n      match = /^#EXT-X-PART:(.*)$/.exec(newLine);\n\n      if (match && match[1]) {\n        event = {\n          type: 'tag',\n          tagType: 'part'\n        };\n        event.attributes = parseAttributes(match[1]);\n        ['DURATION'].forEach(function (key) {\n          if (event.attributes.hasOwnProperty(key)) {\n            event.attributes[key] = parseFloat(event.attributes[key]);\n          }\n        });\n        ['INDEPENDENT', 'GAP'].forEach(function (key) {\n          if (event.attributes.hasOwnProperty(key)) {\n            event.attributes[key] = /YES/.test(event.attributes[key]);\n          }\n        });\n\n        if (event.attributes.hasOwnProperty('BYTERANGE')) {\n          event.attributes.byterange = parseByterange(event.attributes.BYTERANGE);\n        }\n\n        _this2.trigger('data', event);\n\n        return;\n      }\n\n      match = /^#EXT-X-SERVER-CONTROL:(.*)$/.exec(newLine);\n\n      if (match && match[1]) {\n        event = {\n          type: 'tag',\n          tagType: 'server-control'\n        };\n        event.attributes = parseAttributes(match[1]);\n        ['CAN-SKIP-UNTIL', 'PART-HOLD-BACK', 'HOLD-BACK'].forEach(function (key) {\n          if (event.attributes.hasOwnProperty(key)) {\n            event.attributes[key] = parseFloat(event.attributes[key]);\n          }\n        });\n        ['CAN-SKIP-DATERANGES', 'CAN-BLOCK-RELOAD'].forEach(function (key) {\n          if (event.attributes.hasOwnProperty(key)) {\n            event.attributes[key] = /YES/.test(event.attributes[key]);\n          }\n        });\n\n        _this2.trigger('data', event);\n\n        return;\n      }\n\n      match = /^#EXT-X-PART-INF:(.*)$/.exec(newLine);\n\n      if (match && match[1]) {\n        event = {\n          type: 'tag',\n          tagType: 'part-inf'\n        };\n        event.attributes = parseAttributes(match[1]);\n        ['PART-TARGET'].forEach(function (key) {\n          if (event.attributes.hasOwnProperty(key)) {\n            event.attributes[key] = parseFloat(event.attributes[key]);\n          }\n        });\n\n        _this2.trigger('data', event);\n\n        return;\n      }\n\n      match = /^#EXT-X-PRELOAD-HINT:(.*)$/.exec(newLine);\n\n      if (match && match[1]) {\n        event = {\n          type: 'tag',\n          tagType: 'preload-hint'\n        };\n        event.attributes = parseAttributes(match[1]);\n        ['BYTERANGE-START', 'BYTERANGE-LENGTH'].forEach(function (key) {\n          if (event.attributes.hasOwnProperty(key)) {\n            event.attributes[key] = parseInt(event.attributes[key], 10);\n            var subkey = key === 'BYTERANGE-LENGTH' ? 'length' : 'offset';\n            event.attributes.byterange = event.attributes.byterange || {};\n            event.attributes.byterange[subkey] = event.attributes[key]; // only keep the parsed byterange object.\n\n            delete event.attributes[key];\n          }\n        });\n\n        _this2.trigger('data', event);\n\n        return;\n      }\n\n      match = /^#EXT-X-RENDITION-REPORT:(.*)$/.exec(newLine);\n\n      if (match && match[1]) {\n        event = {\n          type: 'tag',\n          tagType: 'rendition-report'\n        };\n        event.attributes = parseAttributes(match[1]);\n        ['LAST-MSN', 'LAST-PART'].forEach(function (key) {\n          if (event.attributes.hasOwnProperty(key)) {\n            event.attributes[key] = parseInt(event.attributes[key], 10);\n          }\n        });\n\n        _this2.trigger('data', event);\n\n        return;\n      } // unknown tag type\n\n\n      _this2.trigger('data', {\n        type: 'tag',\n        data: newLine.slice(4)\n      });\n    });\n  }\n  /**\n   * Add a parser for custom headers\n   *\n   * @param {Object}   options              a map of options for the added parser\n   * @param {RegExp}   options.expression   a regular expression to match the custom header\n   * @param {string}   options.customType   the custom type to register to the output\n   * @param {Function} [options.dataParser] function to parse the line into an object\n   * @param {boolean}  [options.segment]    should tag data be attached to the segment object\n   */\n  ;\n\n  _proto.addParser = function addParser(_ref) {\n    var _this3 = this;\n\n    var expression = _ref.expression,\n        customType = _ref.customType,\n        dataParser = _ref.dataParser,\n        segment = _ref.segment;\n\n    if (typeof dataParser !== 'function') {\n      dataParser = function dataParser(line) {\n        return line;\n      };\n    }\n\n    this.customParsers.push(function (line) {\n      var match = expression.exec(line);\n\n      if (match) {\n        _this3.trigger('data', {\n          type: 'custom',\n          data: dataParser(line),\n          customType: customType,\n          segment: segment\n        });\n\n        return true;\n      }\n    });\n  }\n  /**\n   * Add a custom header mapper\n   *\n   * @param {Object}   options\n   * @param {RegExp}   options.expression   a regular expression to match the custom header\n   * @param {Function} options.map          function to translate tag into a different tag\n   */\n  ;\n\n  _proto.addTagMapper = function addTagMapper(_ref2) {\n    var expression = _ref2.expression,\n        map = _ref2.map;\n\n    var mapFn = function mapFn(line) {\n      if (expression.test(line)) {\n        return map(line);\n      }\n\n      return line;\n    };\n\n    this.tagMappers.push(mapFn);\n  };\n\n  return ParseStream;\n}(Stream);\n\nvar camelCase = function camelCase(str) {\n  return str.toLowerCase().replace(/-(\\w)/g, function (a) {\n    return a[1].toUpperCase();\n  });\n};\n\nvar camelCaseKeys = function camelCaseKeys(attributes) {\n  var result = {};\n  Object.keys(attributes).forEach(function (key) {\n    result[camelCase(key)] = attributes[key];\n  });\n  return result;\n}; // set SERVER-CONTROL hold back based upon targetDuration and partTargetDuration\n// we need this helper because defaults are based upon targetDuration and\n// partTargetDuration being set, but they may not be if SERVER-CONTROL appears before\n// target durations are set.\n\n\nvar setHoldBack = function setHoldBack(manifest) {\n  var serverControl = manifest.serverControl,\n      targetDuration = manifest.targetDuration,\n      partTargetDuration = manifest.partTargetDuration;\n\n  if (!serverControl) {\n    return;\n  }\n\n  var tag = '#EXT-X-SERVER-CONTROL';\n  var hb = 'holdBack';\n  var phb = 'partHoldBack';\n  var minTargetDuration = targetDuration && targetDuration * 3;\n  var minPartDuration = partTargetDuration && partTargetDuration * 2;\n\n  if (targetDuration && !serverControl.hasOwnProperty(hb)) {\n    serverControl[hb] = minTargetDuration;\n    this.trigger('info', {\n      message: tag + \" defaulting HOLD-BACK to targetDuration * 3 (\" + minTargetDuration + \").\"\n    });\n  }\n\n  if (minTargetDuration && serverControl[hb] < minTargetDuration) {\n    this.trigger('warn', {\n      message: tag + \" clamping HOLD-BACK (\" + serverControl[hb] + \") to targetDuration * 3 (\" + minTargetDuration + \")\"\n    });\n    serverControl[hb] = minTargetDuration;\n  } // default no part hold back to part target duration * 3\n\n\n  if (partTargetDuration && !serverControl.hasOwnProperty(phb)) {\n    serverControl[phb] = partTargetDuration * 3;\n    this.trigger('info', {\n      message: tag + \" defaulting PART-HOLD-BACK to partTargetDuration * 3 (\" + serverControl[phb] + \").\"\n    });\n  } // if part hold back is too small default it to part target duration * 2\n\n\n  if (partTargetDuration && serverControl[phb] < minPartDuration) {\n    this.trigger('warn', {\n      message: tag + \" clamping PART-HOLD-BACK (\" + serverControl[phb] + \") to partTargetDuration * 2 (\" + minPartDuration + \").\"\n    });\n    serverControl[phb] = minPartDuration;\n  }\n};\n/**\n * A parser for M3U8 files. The current interpretation of the input is\n * exposed as a property `manifest` on parser objects. It's just two lines to\n * create and parse a manifest once you have the contents available as a string:\n *\n * ```js\n * var parser = new m3u8.Parser();\n * parser.push(xhr.responseText);\n * ```\n *\n * New input can later be applied to update the manifest object by calling\n * `push` again.\n *\n * The parser attempts to create a usable manifest object even if the\n * underlying input is somewhat nonsensical. It emits `info` and `warning`\n * events during the parse if it encounters input that seems invalid or\n * requires some property of the manifest object to be defaulted.\n *\n * @class Parser\n * @extends Stream\n */\n\n\nvar Parser = /*#__PURE__*/function (_Stream) {\n  _inheritsLoose(Parser, _Stream);\n\n  function Parser() {\n    var _this;\n\n    _this = _Stream.call(this) || this;\n    _this.lineStream = new LineStream();\n    _this.parseStream = new ParseStream();\n\n    _this.lineStream.pipe(_this.parseStream);\n    /* eslint-disable consistent-this */\n\n\n    var self = _assertThisInitialized(_this);\n    /* eslint-enable consistent-this */\n\n\n    var uris = [];\n    var currentUri = {}; // if specified, the active EXT-X-MAP definition\n\n    var currentMap; // if specified, the active decryption key\n\n    var _key;\n\n    var hasParts = false;\n\n    var noop = function noop() {};\n\n    var defaultMediaGroups = {\n      'AUDIO': {},\n      'VIDEO': {},\n      'CLOSED-CAPTIONS': {},\n      'SUBTITLES': {}\n    }; // This is the Widevine UUID from DASH IF IOP. The same exact string is\n    // used in MPDs with Widevine encrypted streams.\n\n    var widevineUuid = 'urn:uuid:edef8ba9-79d6-4ace-a3c8-27dcd51d21ed'; // group segments into numbered timelines delineated by discontinuities\n\n    var currentTimeline = 0; // the manifest is empty until the parse stream begins delivering data\n\n    _this.manifest = {\n      allowCache: true,\n      discontinuityStarts: [],\n      segments: []\n    }; // keep track of the last seen segment's byte range end, as segments are not required\n    // to provide the offset, in which case it defaults to the next byte after the\n    // previous segment\n\n    var lastByterangeEnd = 0; // keep track of the last seen part's byte range end.\n\n    var lastPartByterangeEnd = 0;\n\n    _this.on('end', function () {\n      // only add preloadSegment if we don't yet have a uri for it.\n      // and we actually have parts/preloadHints\n      if (currentUri.uri || !currentUri.parts && !currentUri.preloadHints) {\n        return;\n      }\n\n      if (!currentUri.map && currentMap) {\n        currentUri.map = currentMap;\n      }\n\n      if (!currentUri.key && _key) {\n        currentUri.key = _key;\n      }\n\n      if (!currentUri.timeline && typeof currentTimeline === 'number') {\n        currentUri.timeline = currentTimeline;\n      }\n\n      _this.manifest.preloadSegment = currentUri;\n    }); // update the manifest with the m3u8 entry from the parse stream\n\n\n    _this.parseStream.on('data', function (entry) {\n      var mediaGroup;\n      var rendition;\n      ({\n        tag: function tag() {\n          // switch based on the tag type\n          (({\n            version: function version() {\n              if (entry.version) {\n                this.manifest.version = entry.version;\n              }\n            },\n            'allow-cache': function allowCache() {\n              this.manifest.allowCache = entry.allowed;\n\n              if (!('allowed' in entry)) {\n                this.trigger('info', {\n                  message: 'defaulting allowCache to YES'\n                });\n                this.manifest.allowCache = true;\n              }\n            },\n            byterange: function byterange() {\n              var byterange = {};\n\n              if ('length' in entry) {\n                currentUri.byterange = byterange;\n                byterange.length = entry.length;\n\n                if (!('offset' in entry)) {\n                  /*\n                   * From the latest spec (as of this writing):\n                   * https://tools.ietf.org/html/draft-pantos-http-live-streaming-23#section-4.3.2.2\n                   *\n                   * Same text since EXT-X-BYTERANGE's introduction in draft 7:\n                   * https://tools.ietf.org/html/draft-pantos-http-live-streaming-07#section-3.3.1)\n                   *\n                   * \"If o [offset] is not present, the sub-range begins at the next byte\n                   * following the sub-range of the previous media segment.\"\n                   */\n                  entry.offset = lastByterangeEnd;\n                }\n              }\n\n              if ('offset' in entry) {\n                currentUri.byterange = byterange;\n                byterange.offset = entry.offset;\n              }\n\n              lastByterangeEnd = byterange.offset + byterange.length;\n            },\n            endlist: function endlist() {\n              this.manifest.endList = true;\n            },\n            inf: function inf() {\n              if (!('mediaSequence' in this.manifest)) {\n                this.manifest.mediaSequence = 0;\n                this.trigger('info', {\n                  message: 'defaulting media sequence to zero'\n                });\n              }\n\n              if (!('discontinuitySequence' in this.manifest)) {\n                this.manifest.discontinuitySequence = 0;\n                this.trigger('info', {\n                  message: 'defaulting discontinuity sequence to zero'\n                });\n              }\n\n              if (entry.duration > 0) {\n                currentUri.duration = entry.duration;\n              }\n\n              if (entry.duration === 0) {\n                currentUri.duration = 0.01;\n                this.trigger('info', {\n                  message: 'updating zero segment duration to a small value'\n                });\n              }\n\n              this.manifest.segments = uris;\n            },\n            key: function key() {\n              if (!entry.attributes) {\n                this.trigger('warn', {\n                  message: 'ignoring key declaration without attribute list'\n                });\n                return;\n              } // clear the active encryption key\n\n\n              if (entry.attributes.METHOD === 'NONE') {\n                _key = null;\n                return;\n              }\n\n              if (!entry.attributes.URI) {\n                this.trigger('warn', {\n                  message: 'ignoring key declaration without URI'\n                });\n                return;\n              }\n\n              if (entry.attributes.KEYFORMAT === 'com.apple.streamingkeydelivery') {\n                this.manifest.contentProtection = this.manifest.contentProtection || {}; // TODO: add full support for this.\n\n                this.manifest.contentProtection['com.apple.fps.1_0'] = {\n                  attributes: entry.attributes\n                };\n                return;\n              } // check if the content is encrypted for Widevine\n              // Widevine/HLS spec: https://storage.googleapis.com/wvdocs/Widevine_DRM_HLS.pdf\n\n\n              if (entry.attributes.KEYFORMAT === widevineUuid) {\n                var VALID_METHODS = ['SAMPLE-AES', 'SAMPLE-AES-CTR', 'SAMPLE-AES-CENC'];\n\n                if (VALID_METHODS.indexOf(entry.attributes.METHOD) === -1) {\n                  this.trigger('warn', {\n                    message: 'invalid key method provided for Widevine'\n                  });\n                  return;\n                }\n\n                if (entry.attributes.METHOD === 'SAMPLE-AES-CENC') {\n                  this.trigger('warn', {\n                    message: 'SAMPLE-AES-CENC is deprecated, please use SAMPLE-AES-CTR instead'\n                  });\n                }\n\n                if (entry.attributes.URI.substring(0, 23) !== 'data:text/plain;base64,') {\n                  this.trigger('warn', {\n                    message: 'invalid key URI provided for Widevine'\n                  });\n                  return;\n                }\n\n                if (!(entry.attributes.KEYID && entry.attributes.KEYID.substring(0, 2) === '0x')) {\n                  this.trigger('warn', {\n                    message: 'invalid key ID provided for Widevine'\n                  });\n                  return;\n                } // if Widevine key attributes are valid, store them as `contentProtection`\n                // on the manifest to emulate Widevine tag structure in a DASH mpd\n\n\n                this.manifest.contentProtection = this.manifest.contentProtection || {};\n                this.manifest.contentProtection['com.widevine.alpha'] = {\n                  attributes: {\n                    schemeIdUri: entry.attributes.KEYFORMAT,\n                    // remove '0x' from the key id string\n                    keyId: entry.attributes.KEYID.substring(2)\n                  },\n                  // decode the base64-encoded PSSH box\n                  pssh: decodeB64ToUint8Array(entry.attributes.URI.split(',')[1])\n                };\n                return;\n              }\n\n              if (!entry.attributes.METHOD) {\n                this.trigger('warn', {\n                  message: 'defaulting key method to AES-128'\n                });\n              } // setup an encryption key for upcoming segments\n\n\n              _key = {\n                method: entry.attributes.METHOD || 'AES-128',\n                uri: entry.attributes.URI\n              };\n\n              if (typeof entry.attributes.IV !== 'undefined') {\n                _key.iv = entry.attributes.IV;\n              }\n            },\n            'media-sequence': function mediaSequence() {\n              if (!isFinite(entry.number)) {\n                this.trigger('warn', {\n                  message: 'ignoring invalid media sequence: ' + entry.number\n                });\n                return;\n              }\n\n              this.manifest.mediaSequence = entry.number;\n            },\n            'discontinuity-sequence': function discontinuitySequence() {\n              if (!isFinite(entry.number)) {\n                this.trigger('warn', {\n                  message: 'ignoring invalid discontinuity sequence: ' + entry.number\n                });\n                return;\n              }\n\n              this.manifest.discontinuitySequence = entry.number;\n              currentTimeline = entry.number;\n            },\n            'playlist-type': function playlistType() {\n              if (!/VOD|EVENT/.test(entry.playlistType)) {\n                this.trigger('warn', {\n                  message: 'ignoring unknown playlist type: ' + entry.playlist\n                });\n                return;\n              }\n\n              this.manifest.playlistType = entry.playlistType;\n            },\n            map: function map() {\n              currentMap = {};\n\n              if (entry.uri) {\n                currentMap.uri = entry.uri;\n              }\n\n              if (entry.byterange) {\n                currentMap.byterange = entry.byterange;\n              }\n\n              if (_key) {\n                currentMap.key = _key;\n              }\n            },\n            'stream-inf': function streamInf() {\n              this.manifest.playlists = uris;\n              this.manifest.mediaGroups = this.manifest.mediaGroups || defaultMediaGroups;\n\n              if (!entry.attributes) {\n                this.trigger('warn', {\n                  message: 'ignoring empty stream-inf attributes'\n                });\n                return;\n              }\n\n              if (!currentUri.attributes) {\n                currentUri.attributes = {};\n              }\n\n              _extends(currentUri.attributes, entry.attributes);\n            },\n            media: function media() {\n              this.manifest.mediaGroups = this.manifest.mediaGroups || defaultMediaGroups;\n\n              if (!(entry.attributes && entry.attributes.TYPE && entry.attributes['GROUP-ID'] && entry.attributes.NAME)) {\n                this.trigger('warn', {\n                  message: 'ignoring incomplete or missing media group'\n                });\n                return;\n              } // find the media group, creating defaults as necessary\n\n\n              var mediaGroupType = this.manifest.mediaGroups[entry.attributes.TYPE];\n              mediaGroupType[entry.attributes['GROUP-ID']] = mediaGroupType[entry.attributes['GROUP-ID']] || {};\n              mediaGroup = mediaGroupType[entry.attributes['GROUP-ID']]; // collect the rendition metadata\n\n              rendition = {\n                default: /yes/i.test(entry.attributes.DEFAULT)\n              };\n\n              if (rendition.default) {\n                rendition.autoselect = true;\n              } else {\n                rendition.autoselect = /yes/i.test(entry.attributes.AUTOSELECT);\n              }\n\n              if (entry.attributes.LANGUAGE) {\n                rendition.language = entry.attributes.LANGUAGE;\n              }\n\n              if (entry.attributes.URI) {\n                rendition.uri = entry.attributes.URI;\n              }\n\n              if (entry.attributes['INSTREAM-ID']) {\n                rendition.instreamId = entry.attributes['INSTREAM-ID'];\n              }\n\n              if (entry.attributes.CHARACTERISTICS) {\n                rendition.characteristics = entry.attributes.CHARACTERISTICS;\n              }\n\n              if (entry.attributes.FORCED) {\n                rendition.forced = /yes/i.test(entry.attributes.FORCED);\n              } // insert the new rendition\n\n\n              mediaGroup[entry.attributes.NAME] = rendition;\n            },\n            discontinuity: function discontinuity() {\n              currentTimeline += 1;\n              currentUri.discontinuity = true;\n              this.manifest.discontinuityStarts.push(uris.length);\n            },\n            'program-date-time': function programDateTime() {\n              if (typeof this.manifest.dateTimeString === 'undefined') {\n                // PROGRAM-DATE-TIME is a media-segment tag, but for backwards\n                // compatibility, we add the first occurence of the PROGRAM-DATE-TIME tag\n                // to the manifest object\n                // TODO: Consider removing this in future major version\n                this.manifest.dateTimeString = entry.dateTimeString;\n                this.manifest.dateTimeObject = entry.dateTimeObject;\n              }\n\n              currentUri.dateTimeString = entry.dateTimeString;\n              currentUri.dateTimeObject = entry.dateTimeObject;\n            },\n            targetduration: function targetduration() {\n              if (!isFinite(entry.duration) || entry.duration < 0) {\n                this.trigger('warn', {\n                  message: 'ignoring invalid target duration: ' + entry.duration\n                });\n                return;\n              }\n\n              this.manifest.targetDuration = entry.duration;\n              setHoldBack.call(this, this.manifest);\n            },\n            start: function start() {\n              if (!entry.attributes || isNaN(entry.attributes['TIME-OFFSET'])) {\n                this.trigger('warn', {\n                  message: 'ignoring start declaration without appropriate attribute list'\n                });\n                return;\n              }\n\n              this.manifest.start = {\n                timeOffset: entry.attributes['TIME-OFFSET'],\n                precise: entry.attributes.PRECISE\n              };\n            },\n            'cue-out': function cueOut() {\n              currentUri.cueOut = entry.data;\n            },\n            'cue-out-cont': function cueOutCont() {\n              currentUri.cueOutCont = entry.data;\n            },\n            'cue-in': function cueIn() {\n              currentUri.cueIn = entry.data;\n            },\n            'skip': function skip() {\n              this.manifest.skip = camelCaseKeys(entry.attributes);\n              this.warnOnMissingAttributes_('#EXT-X-SKIP', entry.attributes, ['SKIPPED-SEGMENTS']);\n            },\n            'part': function part() {\n              var _this2 = this;\n\n              hasParts = true; // parts are always specifed before a segment\n\n              var segmentIndex = this.manifest.segments.length;\n              var part = camelCaseKeys(entry.attributes);\n              currentUri.parts = currentUri.parts || [];\n              currentUri.parts.push(part);\n\n              if (part.byterange) {\n                if (!part.byterange.hasOwnProperty('offset')) {\n                  part.byterange.offset = lastPartByterangeEnd;\n                }\n\n                lastPartByterangeEnd = part.byterange.offset + part.byterange.length;\n              }\n\n              var partIndex = currentUri.parts.length - 1;\n              this.warnOnMissingAttributes_(\"#EXT-X-PART #\" + partIndex + \" for segment #\" + segmentIndex, entry.attributes, ['URI', 'DURATION']);\n\n              if (this.manifest.renditionReports) {\n                this.manifest.renditionReports.forEach(function (r, i) {\n                  if (!r.hasOwnProperty('lastPart')) {\n                    _this2.trigger('warn', {\n                      message: \"#EXT-X-RENDITION-REPORT #\" + i + \" lacks required attribute(s): LAST-PART\"\n                    });\n                  }\n                });\n              }\n            },\n            'server-control': function serverControl() {\n              var attrs = this.manifest.serverControl = camelCaseKeys(entry.attributes);\n\n              if (!attrs.hasOwnProperty('canBlockReload')) {\n                attrs.canBlockReload = false;\n                this.trigger('info', {\n                  message: '#EXT-X-SERVER-CONTROL defaulting CAN-BLOCK-RELOAD to false'\n                });\n              }\n\n              setHoldBack.call(this, this.manifest);\n\n              if (attrs.canSkipDateranges && !attrs.hasOwnProperty('canSkipUntil')) {\n                this.trigger('warn', {\n                  message: '#EXT-X-SERVER-CONTROL lacks required attribute CAN-SKIP-UNTIL which is required when CAN-SKIP-DATERANGES is set'\n                });\n              }\n            },\n            'preload-hint': function preloadHint() {\n              // parts are always specifed before a segment\n              var segmentIndex = this.manifest.segments.length;\n              var hint = camelCaseKeys(entry.attributes);\n              var isPart = hint.type && hint.type === 'PART';\n              currentUri.preloadHints = currentUri.preloadHints || [];\n              currentUri.preloadHints.push(hint);\n\n              if (hint.byterange) {\n                if (!hint.byterange.hasOwnProperty('offset')) {\n                  // use last part byterange end or zero if not a part.\n                  hint.byterange.offset = isPart ? lastPartByterangeEnd : 0;\n\n                  if (isPart) {\n                    lastPartByterangeEnd = hint.byterange.offset + hint.byterange.length;\n                  }\n                }\n              }\n\n              var index = currentUri.preloadHints.length - 1;\n              this.warnOnMissingAttributes_(\"#EXT-X-PRELOAD-HINT #\" + index + \" for segment #\" + segmentIndex, entry.attributes, ['TYPE', 'URI']);\n\n              if (!hint.type) {\n                return;\n              } // search through all preload hints except for the current one for\n              // a duplicate type.\n\n\n              for (var i = 0; i < currentUri.preloadHints.length - 1; i++) {\n                var otherHint = currentUri.preloadHints[i];\n\n                if (!otherHint.type) {\n                  continue;\n                }\n\n                if (otherHint.type === hint.type) {\n                  this.trigger('warn', {\n                    message: \"#EXT-X-PRELOAD-HINT #\" + index + \" for segment #\" + segmentIndex + \" has the same TYPE \" + hint.type + \" as preload hint #\" + i\n                  });\n                }\n              }\n            },\n            'rendition-report': function renditionReport() {\n              var report = camelCaseKeys(entry.attributes);\n              this.manifest.renditionReports = this.manifest.renditionReports || [];\n              this.manifest.renditionReports.push(report);\n              var index = this.manifest.renditionReports.length - 1;\n              var required = ['LAST-MSN', 'URI'];\n\n              if (hasParts) {\n                required.push('LAST-PART');\n              }\n\n              this.warnOnMissingAttributes_(\"#EXT-X-RENDITION-REPORT #\" + index, entry.attributes, required);\n            },\n            'part-inf': function partInf() {\n              this.manifest.partInf = camelCaseKeys(entry.attributes);\n              this.warnOnMissingAttributes_('#EXT-X-PART-INF', entry.attributes, ['PART-TARGET']);\n\n              if (this.manifest.partInf.partTarget) {\n                this.manifest.partTargetDuration = this.manifest.partInf.partTarget;\n              }\n\n              setHoldBack.call(this, this.manifest);\n            }\n          })[entry.tagType] || noop).call(self);\n        },\n        uri: function uri() {\n          currentUri.uri = entry.uri;\n          uris.push(currentUri); // if no explicit duration was declared, use the target duration\n\n          if (this.manifest.targetDuration && !('duration' in currentUri)) {\n            this.trigger('warn', {\n              message: 'defaulting segment duration to the target duration'\n            });\n            currentUri.duration = this.manifest.targetDuration;\n          } // annotate with encryption information, if necessary\n\n\n          if (_key) {\n            currentUri.key = _key;\n          }\n\n          currentUri.timeline = currentTimeline; // annotate with initialization segment information, if necessary\n\n          if (currentMap) {\n            currentUri.map = currentMap;\n          } // reset the last byterange end as it needs to be 0 between parts\n\n\n          lastPartByterangeEnd = 0; // prepare for the next URI\n\n          currentUri = {};\n        },\n        comment: function comment() {// comments are not important for playback\n        },\n        custom: function custom() {\n          // if this is segment-level data attach the output to the segment\n          if (entry.segment) {\n            currentUri.custom = currentUri.custom || {};\n            currentUri.custom[entry.customType] = entry.data; // if this is manifest-level data attach to the top level manifest object\n          } else {\n            this.manifest.custom = this.manifest.custom || {};\n            this.manifest.custom[entry.customType] = entry.data;\n          }\n        }\n      })[entry.type].call(self);\n    });\n\n    return _this;\n  }\n\n  var _proto = Parser.prototype;\n\n  _proto.warnOnMissingAttributes_ = function warnOnMissingAttributes_(identifier, attributes, required) {\n    var missing = [];\n    required.forEach(function (key) {\n      if (!attributes.hasOwnProperty(key)) {\n        missing.push(key);\n      }\n    });\n\n    if (missing.length) {\n      this.trigger('warn', {\n        message: identifier + \" lacks required attribute(s): \" + missing.join(', ')\n      });\n    }\n  }\n  /**\n   * Parse the input string and update the manifest object.\n   *\n   * @param {string} chunk a potentially incomplete portion of the manifest\n   */\n  ;\n\n  _proto.push = function push(chunk) {\n    this.lineStream.push(chunk);\n  }\n  /**\n   * Flush any remaining input. This can be handy if the last line of an M3U8\n   * manifest did not contain a trailing newline but the file has been\n   * completely received.\n   */\n  ;\n\n  _proto.end = function end() {\n    // flush any buffered input\n    this.lineStream.push('\\n');\n    this.trigger('end');\n  }\n  /**\n   * Add an additional parser for non-standard tags\n   *\n   * @param {Object}   options              a map of options for the added parser\n   * @param {RegExp}   options.expression   a regular expression to match the custom header\n   * @param {string}   options.type         the type to register to the output\n   * @param {Function} [options.dataParser] function to parse the line into an object\n   * @param {boolean}  [options.segment]    should tag data be attached to the segment object\n   */\n  ;\n\n  _proto.addParser = function addParser(options) {\n    this.parseStream.addParser(options);\n  }\n  /**\n   * Add a custom header mapper\n   *\n   * @param {Object}   options\n   * @param {RegExp}   options.expression   a regular expression to match the custom header\n   * @param {Function} options.map          function to translate tag into a different tag\n   */\n  ;\n\n  _proto.addTagMapper = function addTagMapper(options) {\n    this.parseStream.addTagMapper(options);\n  };\n\n  return Parser;\n}(Stream);\n\nexport { LineStream, ParseStream, Parser };\n","import window from 'global/window';\nvar regexs = {\n  // to determine mime types\n  mp4: /^(av0?1|avc0?[1234]|vp0?9|flac|opus|mp3|mp4a|mp4v|stpp.ttml.im1t)/,\n  webm: /^(vp0?[89]|av0?1|opus|vorbis)/,\n  ogg: /^(vp0?[89]|theora|flac|opus|vorbis)/,\n  // to determine if a codec is audio or video\n  video: /^(av0?1|avc0?[1234]|vp0?[89]|hvc1|hev1|theora|mp4v)/,\n  audio: /^(mp4a|flac|vorbis|opus|ac-[34]|ec-3|alac|mp3|speex|aac)/,\n  text: /^(stpp.ttml.im1t)/,\n  // mux.js support regex\n  muxerVideo: /^(avc0?1)/,\n  muxerAudio: /^(mp4a)/,\n  // match nothing as muxer does not support text right now.\n  // there cannot never be a character before the start of a string\n  // so this matches nothing.\n  muxerText: /a^/\n};\nvar mediaTypes = ['video', 'audio', 'text'];\nvar upperMediaTypes = ['Video', 'Audio', 'Text'];\n/**\n * Replace the old apple-style `avc1.<dd>.<dd>` codec string with the standard\n * `avc1.<hhhhhh>`\n *\n * @param {string} codec\n *        Codec string to translate\n * @return {string}\n *         The translated codec string\n */\n\nexport var translateLegacyCodec = function translateLegacyCodec(codec) {\n  if (!codec) {\n    return codec;\n  }\n\n  return codec.replace(/avc1\\.(\\d+)\\.(\\d+)/i, function (orig, profile, avcLevel) {\n    var profileHex = ('00' + Number(profile).toString(16)).slice(-2);\n    var avcLevelHex = ('00' + Number(avcLevel).toString(16)).slice(-2);\n    return 'avc1.' + profileHex + '00' + avcLevelHex;\n  });\n};\n/**\n * Replace the old apple-style `avc1.<dd>.<dd>` codec strings with the standard\n * `avc1.<hhhhhh>`\n *\n * @param {string[]} codecs\n *        An array of codec strings to translate\n * @return {string[]}\n *         The translated array of codec strings\n */\n\nexport var translateLegacyCodecs = function translateLegacyCodecs(codecs) {\n  return codecs.map(translateLegacyCodec);\n};\n/**\n * Replace codecs in the codec string with the old apple-style `avc1.<dd>.<dd>` to the\n * standard `avc1.<hhhhhh>`.\n *\n * @param {string} codecString\n *        The codec string\n * @return {string}\n *         The codec string with old apple-style codecs replaced\n *\n * @private\n */\n\nexport var mapLegacyAvcCodecs = function mapLegacyAvcCodecs(codecString) {\n  return codecString.replace(/avc1\\.(\\d+)\\.(\\d+)/i, function (match) {\n    return translateLegacyCodecs([match])[0];\n  });\n};\n/**\n * @typedef {Object} ParsedCodecInfo\n * @property {number} codecCount\n *           Number of codecs parsed\n * @property {string} [videoCodec]\n *           Parsed video codec (if found)\n * @property {string} [videoObjectTypeIndicator]\n *           Video object type indicator (if found)\n * @property {string|null} audioProfile\n *           Audio profile\n */\n\n/**\n * Parses a codec string to retrieve the number of codecs specified, the video codec and\n * object type indicator, and the audio profile.\n *\n * @param {string} [codecString]\n *        The codec string to parse\n * @return {ParsedCodecInfo}\n *         Parsed codec info\n */\n\nexport var parseCodecs = function parseCodecs(codecString) {\n  if (codecString === void 0) {\n    codecString = '';\n  }\n\n  var codecs = codecString.split(',');\n  var result = [];\n  codecs.forEach(function (codec) {\n    codec = codec.trim();\n    var codecType;\n    mediaTypes.forEach(function (name) {\n      var match = regexs[name].exec(codec.toLowerCase());\n\n      if (!match || match.length <= 1) {\n        return;\n      }\n\n      codecType = name; // maintain codec case\n\n      var type = codec.substring(0, match[1].length);\n      var details = codec.replace(type, '');\n      result.push({\n        type: type,\n        details: details,\n        mediaType: name\n      });\n    });\n\n    if (!codecType) {\n      result.push({\n        type: codec,\n        details: '',\n        mediaType: 'unknown'\n      });\n    }\n  });\n  return result;\n};\n/**\n * Returns a ParsedCodecInfo object for the default alternate audio playlist if there is\n * a default alternate audio playlist for the provided audio group.\n *\n * @param {Object} master\n *        The master playlist\n * @param {string} audioGroupId\n *        ID of the audio group for which to find the default codec info\n * @return {ParsedCodecInfo}\n *         Parsed codec info\n */\n\nexport var codecsFromDefault = function codecsFromDefault(master, audioGroupId) {\n  if (!master.mediaGroups.AUDIO || !audioGroupId) {\n    return null;\n  }\n\n  var audioGroup = master.mediaGroups.AUDIO[audioGroupId];\n\n  if (!audioGroup) {\n    return null;\n  }\n\n  for (var name in audioGroup) {\n    var audioType = audioGroup[name];\n\n    if (audioType.default && audioType.playlists) {\n      // codec should be the same for all playlists within the audio type\n      return parseCodecs(audioType.playlists[0].attributes.CODECS);\n    }\n  }\n\n  return null;\n};\nexport var isVideoCodec = function isVideoCodec(codec) {\n  if (codec === void 0) {\n    codec = '';\n  }\n\n  return regexs.video.test(codec.trim().toLowerCase());\n};\nexport var isAudioCodec = function isAudioCodec(codec) {\n  if (codec === void 0) {\n    codec = '';\n  }\n\n  return regexs.audio.test(codec.trim().toLowerCase());\n};\nexport var isTextCodec = function isTextCodec(codec) {\n  if (codec === void 0) {\n    codec = '';\n  }\n\n  return regexs.text.test(codec.trim().toLowerCase());\n};\nexport var getMimeForCodec = function getMimeForCodec(codecString) {\n  if (!codecString || typeof codecString !== 'string') {\n    return;\n  }\n\n  var codecs = codecString.toLowerCase().split(',').map(function (c) {\n    return translateLegacyCodec(c.trim());\n  }); // default to video type\n\n  var type = 'video'; // only change to audio type if the only codec we have is\n  // audio\n\n  if (codecs.length === 1 && isAudioCodec(codecs[0])) {\n    type = 'audio';\n  } else if (codecs.length === 1 && isTextCodec(codecs[0])) {\n    // text uses application/<container> for now\n    type = 'application';\n  } // default the container to mp4\n\n\n  var container = 'mp4'; // every codec must be able to go into the container\n  // for that container to be the correct one\n\n  if (codecs.every(function (c) {\n    return regexs.mp4.test(c);\n  })) {\n    container = 'mp4';\n  } else if (codecs.every(function (c) {\n    return regexs.webm.test(c);\n  })) {\n    container = 'webm';\n  } else if (codecs.every(function (c) {\n    return regexs.ogg.test(c);\n  })) {\n    container = 'ogg';\n  }\n\n  return type + \"/\" + container + \";codecs=\\\"\" + codecString + \"\\\"\";\n};\nexport var browserSupportsCodec = function browserSupportsCodec(codecString) {\n  if (codecString === void 0) {\n    codecString = '';\n  }\n\n  return window.MediaSource && window.MediaSource.isTypeSupported && window.MediaSource.isTypeSupported(getMimeForCodec(codecString)) || false;\n};\nexport var muxerSupportsCodec = function muxerSupportsCodec(codecString) {\n  if (codecString === void 0) {\n    codecString = '';\n  }\n\n  return codecString.toLowerCase().split(',').every(function (codec) {\n    codec = codec.trim(); // any match is supported.\n\n    for (var i = 0; i < upperMediaTypes.length; i++) {\n      var type = upperMediaTypes[i];\n\n      if (regexs[\"muxer\" + type].test(codec)) {\n        return true;\n      }\n    }\n\n    return false;\n  });\n};\nexport var DEFAULT_AUDIO_CODEC = 'mp4a.40.2';\nexport var DEFAULT_VIDEO_CODEC = 'avc1.4d400d';","var MPEGURL_REGEX = /^(audio|video|application)\\/(x-|vnd\\.apple\\.)?mpegurl/i;\nvar DASH_REGEX = /^application\\/dash\\+xml/i;\n/**\n * Returns a string that describes the type of source based on a video source object's\n * media type.\n *\n * @see {@link https://dev.w3.org/html5/pf-summary/video.html#dom-source-type|Source Type}\n *\n * @param {string} type\n *        Video source object media type\n * @return {('hls'|'dash'|'vhs-json'|null)}\n *         VHS source type string\n */\n\nexport var simpleTypeFromSourceType = function simpleTypeFromSourceType(type) {\n  if (MPEGURL_REGEX.test(type)) {\n    return 'hls';\n  }\n\n  if (DASH_REGEX.test(type)) {\n    return 'dash';\n  } // Denotes the special case of a manifest object passed to http-streaming instead of a\n  // source URL.\n  //\n  // See https://en.wikipedia.org/wiki/Media_type for details on specifying media types.\n  //\n  // In this case, vnd stands for vendor, video.js for the organization, VHS for this\n  // project, and the +json suffix identifies the structure of the media type.\n\n\n  if (type === 'application/vnd.videojs.vhs+json') {\n    return 'vhs-json';\n  }\n\n  return null;\n};","/*! @name mpd-parser @version 0.19.0 @license Apache-2.0 */\nimport resolveUrl from '@videojs/vhs-utils/es/resolve-url';\nimport window from 'global/window';\nimport decodeB64ToUint8Array from '@videojs/vhs-utils/es/decode-b64-to-uint8-array';\nimport { DOMParser } from '@xmldom/xmldom';\n\nvar version = \"0.19.0\";\n\nvar isObject = function isObject(obj) {\n  return !!obj && typeof obj === 'object';\n};\n\nvar merge = function merge() {\n  for (var _len = arguments.length, objects = new Array(_len), _key = 0; _key < _len; _key++) {\n    objects[_key] = arguments[_key];\n  }\n\n  return objects.reduce(function (result, source) {\n    if (typeof source !== 'object') {\n      return result;\n    }\n\n    Object.keys(source).forEach(function (key) {\n      if (Array.isArray(result[key]) && Array.isArray(source[key])) {\n        result[key] = result[key].concat(source[key]);\n      } else if (isObject(result[key]) && isObject(source[key])) {\n        result[key] = merge(result[key], source[key]);\n      } else {\n        result[key] = source[key];\n      }\n    });\n    return result;\n  }, {});\n};\nvar values = function values(o) {\n  return Object.keys(o).map(function (k) {\n    return o[k];\n  });\n};\n\nvar range = function range(start, end) {\n  var result = [];\n\n  for (var i = start; i < end; i++) {\n    result.push(i);\n  }\n\n  return result;\n};\nvar flatten = function flatten(lists) {\n  return lists.reduce(function (x, y) {\n    return x.concat(y);\n  }, []);\n};\nvar from = function from(list) {\n  if (!list.length) {\n    return [];\n  }\n\n  var result = [];\n\n  for (var i = 0; i < list.length; i++) {\n    result.push(list[i]);\n  }\n\n  return result;\n};\nvar findIndexes = function findIndexes(l, key) {\n  return l.reduce(function (a, e, i) {\n    if (e[key]) {\n      a.push(i);\n    }\n\n    return a;\n  }, []);\n};\n\nvar errors = {\n  INVALID_NUMBER_OF_PERIOD: 'INVALID_NUMBER_OF_PERIOD',\n  DASH_EMPTY_MANIFEST: 'DASH_EMPTY_MANIFEST',\n  DASH_INVALID_XML: 'DASH_INVALID_XML',\n  NO_BASE_URL: 'NO_BASE_URL',\n  MISSING_SEGMENT_INFORMATION: 'MISSING_SEGMENT_INFORMATION',\n  SEGMENT_TIME_UNSPECIFIED: 'SEGMENT_TIME_UNSPECIFIED',\n  UNSUPPORTED_UTC_TIMING_SCHEME: 'UNSUPPORTED_UTC_TIMING_SCHEME'\n};\n\n/**\n * @typedef {Object} SingleUri\n * @property {string} uri - relative location of segment\n * @property {string} resolvedUri - resolved location of segment\n * @property {Object} byterange - Object containing information on how to make byte range\n *   requests following byte-range-spec per RFC2616.\n * @property {String} byterange.length - length of range request\n * @property {String} byterange.offset - byte offset of range request\n *\n * @see https://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html#sec14.35.1\n */\n\n/**\n * Converts a URLType node (5.3.9.2.3 Table 13) to a segment object\n * that conforms to how m3u8-parser is structured\n *\n * @see https://github.com/videojs/m3u8-parser\n *\n * @param {string} baseUrl - baseUrl provided by <BaseUrl> nodes\n * @param {string} source - source url for segment\n * @param {string} range - optional range used for range calls,\n *   follows  RFC 2616, Clause 14.35.1\n * @return {SingleUri} full segment information transformed into a format similar\n *   to m3u8-parser\n */\n\nvar urlTypeToSegment = function urlTypeToSegment(_ref) {\n  var _ref$baseUrl = _ref.baseUrl,\n      baseUrl = _ref$baseUrl === void 0 ? '' : _ref$baseUrl,\n      _ref$source = _ref.source,\n      source = _ref$source === void 0 ? '' : _ref$source,\n      _ref$range = _ref.range,\n      range = _ref$range === void 0 ? '' : _ref$range,\n      _ref$indexRange = _ref.indexRange,\n      indexRange = _ref$indexRange === void 0 ? '' : _ref$indexRange;\n  var segment = {\n    uri: source,\n    resolvedUri: resolveUrl(baseUrl || '', source)\n  };\n\n  if (range || indexRange) {\n    var rangeStr = range ? range : indexRange;\n    var ranges = rangeStr.split('-');\n    var startRange = parseInt(ranges[0], 10);\n    var endRange = parseInt(ranges[1], 10); // byterange should be inclusive according to\n    // RFC 2616, Clause 14.35.1\n\n    segment.byterange = {\n      length: endRange - startRange + 1,\n      offset: startRange\n    };\n  }\n\n  return segment;\n};\nvar byteRangeToString = function byteRangeToString(byterange) {\n  // `endRange` is one less than `offset + length` because the HTTP range\n  // header uses inclusive ranges\n  var endRange = byterange.offset + byterange.length - 1;\n  return byterange.offset + \"-\" + endRange;\n};\n\n/**\n * parse the end number attribue that can be a string\n * number, or undefined.\n *\n * @param {string|number|undefined} endNumber\n *        The end number attribute.\n *\n * @return {number|null}\n *          The result of parsing the end number.\n */\n\nvar parseEndNumber = function parseEndNumber(endNumber) {\n  if (endNumber && typeof endNumber !== 'number') {\n    endNumber = parseInt(endNumber, 10);\n  }\n\n  if (isNaN(endNumber)) {\n    return null;\n  }\n\n  return endNumber;\n};\n/**\n * Functions for calculating the range of available segments in static and dynamic\n * manifests.\n */\n\n\nvar segmentRange = {\n  /**\n   * Returns the entire range of available segments for a static MPD\n   *\n   * @param {Object} attributes\n   *        Inheritied MPD attributes\n   * @return {{ start: number, end: number }}\n   *         The start and end numbers for available segments\n   */\n  static: function _static(attributes) {\n    var duration = attributes.duration,\n        _attributes$timescale = attributes.timescale,\n        timescale = _attributes$timescale === void 0 ? 1 : _attributes$timescale,\n        sourceDuration = attributes.sourceDuration,\n        periodDuration = attributes.periodDuration;\n    var endNumber = parseEndNumber(attributes.endNumber);\n    var segmentDuration = duration / timescale;\n\n    if (typeof endNumber === 'number') {\n      return {\n        start: 0,\n        end: endNumber\n      };\n    }\n\n    if (typeof periodDuration === 'number') {\n      return {\n        start: 0,\n        end: periodDuration / segmentDuration\n      };\n    }\n\n    return {\n      start: 0,\n      end: sourceDuration / segmentDuration\n    };\n  },\n\n  /**\n   * Returns the current live window range of available segments for a dynamic MPD\n   *\n   * @param {Object} attributes\n   *        Inheritied MPD attributes\n   * @return {{ start: number, end: number }}\n   *         The start and end numbers for available segments\n   */\n  dynamic: function dynamic(attributes) {\n    var NOW = attributes.NOW,\n        clientOffset = attributes.clientOffset,\n        availabilityStartTime = attributes.availabilityStartTime,\n        _attributes$timescale2 = attributes.timescale,\n        timescale = _attributes$timescale2 === void 0 ? 1 : _attributes$timescale2,\n        duration = attributes.duration,\n        _attributes$start = attributes.start,\n        start = _attributes$start === void 0 ? 0 : _attributes$start,\n        _attributes$minimumUp = attributes.minimumUpdatePeriod,\n        minimumUpdatePeriod = _attributes$minimumUp === void 0 ? 0 : _attributes$minimumUp,\n        _attributes$timeShift = attributes.timeShiftBufferDepth,\n        timeShiftBufferDepth = _attributes$timeShift === void 0 ? Infinity : _attributes$timeShift;\n    var endNumber = parseEndNumber(attributes.endNumber);\n    var now = (NOW + clientOffset) / 1000;\n    var periodStartWC = availabilityStartTime + start;\n    var periodEndWC = now + minimumUpdatePeriod;\n    var periodDuration = periodEndWC - periodStartWC;\n    var segmentCount = Math.ceil(periodDuration * timescale / duration);\n    var availableStart = Math.floor((now - periodStartWC - timeShiftBufferDepth) * timescale / duration);\n    var availableEnd = Math.floor((now - periodStartWC) * timescale / duration);\n    return {\n      start: Math.max(0, availableStart),\n      end: typeof endNumber === 'number' ? endNumber : Math.min(segmentCount, availableEnd)\n    };\n  }\n};\n/**\n * Maps a range of numbers to objects with information needed to build the corresponding\n * segment list\n *\n * @name toSegmentsCallback\n * @function\n * @param {number} number\n *        Number of the segment\n * @param {number} index\n *        Index of the number in the range list\n * @return {{ number: Number, duration: Number, timeline: Number, time: Number }}\n *         Object with segment timing and duration info\n */\n\n/**\n * Returns a callback for Array.prototype.map for mapping a range of numbers to\n * information needed to build the segment list.\n *\n * @param {Object} attributes\n *        Inherited MPD attributes\n * @return {toSegmentsCallback}\n *         Callback map function\n */\n\nvar toSegments = function toSegments(attributes) {\n  return function (number, index) {\n    var duration = attributes.duration,\n        _attributes$timescale3 = attributes.timescale,\n        timescale = _attributes$timescale3 === void 0 ? 1 : _attributes$timescale3,\n        periodIndex = attributes.periodIndex,\n        _attributes$startNumb = attributes.startNumber,\n        startNumber = _attributes$startNumb === void 0 ? 1 : _attributes$startNumb;\n    return {\n      number: startNumber + number,\n      duration: duration / timescale,\n      timeline: periodIndex,\n      time: index * duration\n    };\n  };\n};\n/**\n * Returns a list of objects containing segment timing and duration info used for\n * building the list of segments. This uses the @duration attribute specified\n * in the MPD manifest to derive the range of segments.\n *\n * @param {Object} attributes\n *        Inherited MPD attributes\n * @return {{number: number, duration: number, time: number, timeline: number}[]}\n *         List of Objects with segment timing and duration info\n */\n\nvar parseByDuration = function parseByDuration(attributes) {\n  var type = attributes.type,\n      duration = attributes.duration,\n      _attributes$timescale4 = attributes.timescale,\n      timescale = _attributes$timescale4 === void 0 ? 1 : _attributes$timescale4,\n      periodDuration = attributes.periodDuration,\n      sourceDuration = attributes.sourceDuration;\n\n  var _segmentRange$type = segmentRange[type](attributes),\n      start = _segmentRange$type.start,\n      end = _segmentRange$type.end;\n\n  var segments = range(start, end).map(toSegments(attributes));\n\n  if (type === 'static') {\n    var index = segments.length - 1; // section is either a period or the full source\n\n    var sectionDuration = typeof periodDuration === 'number' ? periodDuration : sourceDuration; // final segment may be less than full segment duration\n\n    segments[index].duration = sectionDuration - duration / timescale * index;\n  }\n\n  return segments;\n};\n\n/**\n * Translates SegmentBase into a set of segments.\n * (DASH SPEC Section 5.3.9.3.2) contains a set of <SegmentURL> nodes.  Each\n * node should be translated into segment.\n *\n * @param {Object} attributes\n *   Object containing all inherited attributes from parent elements with attribute\n *   names as keys\n * @return {Object.<Array>} list of segments\n */\n\nvar segmentsFromBase = function segmentsFromBase(attributes) {\n  var baseUrl = attributes.baseUrl,\n      _attributes$initializ = attributes.initialization,\n      initialization = _attributes$initializ === void 0 ? {} : _attributes$initializ,\n      sourceDuration = attributes.sourceDuration,\n      _attributes$indexRang = attributes.indexRange,\n      indexRange = _attributes$indexRang === void 0 ? '' : _attributes$indexRang,\n      duration = attributes.duration; // base url is required for SegmentBase to work, per spec (Section 5.3.9.2.1)\n\n  if (!baseUrl) {\n    throw new Error(errors.NO_BASE_URL);\n  }\n\n  var initSegment = urlTypeToSegment({\n    baseUrl: baseUrl,\n    source: initialization.sourceURL,\n    range: initialization.range\n  });\n  var segment = urlTypeToSegment({\n    baseUrl: baseUrl,\n    source: baseUrl,\n    indexRange: indexRange\n  });\n  segment.map = initSegment; // If there is a duration, use it, otherwise use the given duration of the source\n  // (since SegmentBase is only for one total segment)\n\n  if (duration) {\n    var segmentTimeInfo = parseByDuration(attributes);\n\n    if (segmentTimeInfo.length) {\n      segment.duration = segmentTimeInfo[0].duration;\n      segment.timeline = segmentTimeInfo[0].timeline;\n    }\n  } else if (sourceDuration) {\n    segment.duration = sourceDuration;\n    segment.timeline = 0;\n  } // This is used for mediaSequence\n\n\n  segment.number = 0;\n  return [segment];\n};\n/**\n * Given a playlist, a sidx box, and a baseUrl, update the segment list of the playlist\n * according to the sidx information given.\n *\n * playlist.sidx has metadadata about the sidx where-as the sidx param\n * is the parsed sidx box itself.\n *\n * @param {Object} playlist the playlist to update the sidx information for\n * @param {Object} sidx the parsed sidx box\n * @return {Object} the playlist object with the updated sidx information\n */\n\nvar addSidxSegmentsToPlaylist = function addSidxSegmentsToPlaylist(playlist, sidx, baseUrl) {\n  // Retain init segment information\n  var initSegment = playlist.sidx.map ? playlist.sidx.map : null; // Retain source duration from initial main manifest parsing\n\n  var sourceDuration = playlist.sidx.duration; // Retain source timeline\n\n  var timeline = playlist.timeline || 0;\n  var sidxByteRange = playlist.sidx.byterange;\n  var sidxEnd = sidxByteRange.offset + sidxByteRange.length; // Retain timescale of the parsed sidx\n\n  var timescale = sidx.timescale; // referenceType 1 refers to other sidx boxes\n\n  var mediaReferences = sidx.references.filter(function (r) {\n    return r.referenceType !== 1;\n  });\n  var segments = [];\n  var type = playlist.endList ? 'static' : 'dynamic'; // firstOffset is the offset from the end of the sidx box\n\n  var startIndex = sidxEnd + sidx.firstOffset;\n\n  for (var i = 0; i < mediaReferences.length; i++) {\n    var reference = sidx.references[i]; // size of the referenced (sub)segment\n\n    var size = reference.referencedSize; // duration of the referenced (sub)segment, in  the  timescale\n    // this will be converted to seconds when generating segments\n\n    var duration = reference.subsegmentDuration; // should be an inclusive range\n\n    var endIndex = startIndex + size - 1;\n    var indexRange = startIndex + \"-\" + endIndex;\n    var attributes = {\n      baseUrl: baseUrl,\n      timescale: timescale,\n      timeline: timeline,\n      // this is used in parseByDuration\n      periodIndex: timeline,\n      duration: duration,\n      sourceDuration: sourceDuration,\n      indexRange: indexRange,\n      type: type\n    };\n    var segment = segmentsFromBase(attributes)[0];\n\n    if (initSegment) {\n      segment.map = initSegment;\n    }\n\n    segments.push(segment);\n    startIndex += size;\n  }\n\n  playlist.segments = segments;\n  return playlist;\n};\n\nvar generateSidxKey = function generateSidxKey(sidx) {\n  return sidx && sidx.uri + '-' + byteRangeToString(sidx.byterange);\n};\n\nvar mergeDiscontiguousPlaylists = function mergeDiscontiguousPlaylists(playlists) {\n  var mergedPlaylists = values(playlists.reduce(function (acc, playlist) {\n    // assuming playlist IDs are the same across periods\n    // TODO: handle multiperiod where representation sets are not the same\n    // across periods\n    var name = playlist.attributes.id + (playlist.attributes.lang || ''); // Periods after first\n\n    if (acc[name]) {\n      var _acc$name$segments;\n\n      // first segment of subsequent periods signal a discontinuity\n      if (playlist.segments[0]) {\n        playlist.segments[0].discontinuity = true;\n      }\n\n      (_acc$name$segments = acc[name].segments).push.apply(_acc$name$segments, playlist.segments); // bubble up contentProtection, this assumes all DRM content\n      // has the same contentProtection\n\n\n      if (playlist.attributes.contentProtection) {\n        acc[name].attributes.contentProtection = playlist.attributes.contentProtection;\n      }\n    } else {\n      // first Period\n      acc[name] = playlist;\n    }\n\n    return acc;\n  }, {}));\n  return mergedPlaylists.map(function (playlist) {\n    playlist.discontinuityStarts = findIndexes(playlist.segments, 'discontinuity');\n    return playlist;\n  });\n};\n\nvar addSidxSegmentsToPlaylist$1 = function addSidxSegmentsToPlaylist$1(playlist, sidxMapping) {\n  var sidxKey = generateSidxKey(playlist.sidx);\n  var sidxMatch = sidxKey && sidxMapping[sidxKey] && sidxMapping[sidxKey].sidx;\n\n  if (sidxMatch) {\n    addSidxSegmentsToPlaylist(playlist, sidxMatch, playlist.sidx.resolvedUri);\n  }\n\n  return playlist;\n};\nvar addSidxSegmentsToPlaylists = function addSidxSegmentsToPlaylists(playlists, sidxMapping) {\n  if (sidxMapping === void 0) {\n    sidxMapping = {};\n  }\n\n  if (!Object.keys(sidxMapping).length) {\n    return playlists;\n  }\n\n  for (var i in playlists) {\n    playlists[i] = addSidxSegmentsToPlaylist$1(playlists[i], sidxMapping);\n  }\n\n  return playlists;\n};\nvar formatAudioPlaylist = function formatAudioPlaylist(_ref, isAudioOnly) {\n  var _attributes;\n\n  var attributes = _ref.attributes,\n      segments = _ref.segments,\n      sidx = _ref.sidx;\n  var playlist = {\n    attributes: (_attributes = {\n      NAME: attributes.id,\n      BANDWIDTH: attributes.bandwidth,\n      CODECS: attributes.codecs\n    }, _attributes['PROGRAM-ID'] = 1, _attributes),\n    uri: '',\n    endList: attributes.type === 'static',\n    timeline: attributes.periodIndex,\n    resolvedUri: '',\n    targetDuration: attributes.duration,\n    segments: segments,\n    mediaSequence: segments.length ? segments[0].number : 1\n  };\n\n  if (attributes.contentProtection) {\n    playlist.contentProtection = attributes.contentProtection;\n  }\n\n  if (sidx) {\n    playlist.sidx = sidx;\n  }\n\n  if (isAudioOnly) {\n    playlist.attributes.AUDIO = 'audio';\n    playlist.attributes.SUBTITLES = 'subs';\n  }\n\n  return playlist;\n};\nvar formatVttPlaylist = function formatVttPlaylist(_ref2) {\n  var _m3u8Attributes;\n\n  var attributes = _ref2.attributes,\n      segments = _ref2.segments;\n\n  if (typeof segments === 'undefined') {\n    // vtt tracks may use single file in BaseURL\n    segments = [{\n      uri: attributes.baseUrl,\n      timeline: attributes.periodIndex,\n      resolvedUri: attributes.baseUrl || '',\n      duration: attributes.sourceDuration,\n      number: 0\n    }]; // targetDuration should be the same duration as the only segment\n\n    attributes.duration = attributes.sourceDuration;\n  }\n\n  var m3u8Attributes = (_m3u8Attributes = {\n    NAME: attributes.id,\n    BANDWIDTH: attributes.bandwidth\n  }, _m3u8Attributes['PROGRAM-ID'] = 1, _m3u8Attributes);\n\n  if (attributes.codecs) {\n    m3u8Attributes.CODECS = attributes.codecs;\n  }\n\n  return {\n    attributes: m3u8Attributes,\n    uri: '',\n    endList: attributes.type === 'static',\n    timeline: attributes.periodIndex,\n    resolvedUri: attributes.baseUrl || '',\n    targetDuration: attributes.duration,\n    segments: segments,\n    mediaSequence: segments.length ? segments[0].number : 1\n  };\n};\nvar organizeAudioPlaylists = function organizeAudioPlaylists(playlists, sidxMapping, isAudioOnly) {\n  if (sidxMapping === void 0) {\n    sidxMapping = {};\n  }\n\n  if (isAudioOnly === void 0) {\n    isAudioOnly = false;\n  }\n\n  var mainPlaylist;\n  var formattedPlaylists = playlists.reduce(function (a, playlist) {\n    var role = playlist.attributes.role && playlist.attributes.role.value || '';\n    var language = playlist.attributes.lang || '';\n    var label = playlist.attributes.label || 'main';\n\n    if (language && !playlist.attributes.label) {\n      var roleLabel = role ? \" (\" + role + \")\" : '';\n      label = \"\" + playlist.attributes.lang + roleLabel;\n    }\n\n    if (!a[label]) {\n      a[label] = {\n        language: language,\n        autoselect: true,\n        default: role === 'main',\n        playlists: [],\n        uri: ''\n      };\n    }\n\n    var formatted = addSidxSegmentsToPlaylist$1(formatAudioPlaylist(playlist, isAudioOnly), sidxMapping);\n    a[label].playlists.push(formatted);\n\n    if (typeof mainPlaylist === 'undefined' && role === 'main') {\n      mainPlaylist = playlist;\n      mainPlaylist.default = true;\n    }\n\n    return a;\n  }, {}); // if no playlists have role \"main\", mark the first as main\n\n  if (!mainPlaylist) {\n    var firstLabel = Object.keys(formattedPlaylists)[0];\n    formattedPlaylists[firstLabel].default = true;\n  }\n\n  return formattedPlaylists;\n};\nvar organizeVttPlaylists = function organizeVttPlaylists(playlists, sidxMapping) {\n  if (sidxMapping === void 0) {\n    sidxMapping = {};\n  }\n\n  return playlists.reduce(function (a, playlist) {\n    var label = playlist.attributes.lang || 'text';\n\n    if (!a[label]) {\n      a[label] = {\n        language: label,\n        default: false,\n        autoselect: false,\n        playlists: [],\n        uri: ''\n      };\n    }\n\n    a[label].playlists.push(addSidxSegmentsToPlaylist$1(formatVttPlaylist(playlist), sidxMapping));\n    return a;\n  }, {});\n};\n\nvar organizeCaptionServices = function organizeCaptionServices(captionServices) {\n  return captionServices.reduce(function (svcObj, svc) {\n    if (!svc) {\n      return svcObj;\n    }\n\n    svc.forEach(function (service) {\n      var channel = service.channel,\n          language = service.language;\n      svcObj[language] = {\n        autoselect: false,\n        default: false,\n        instreamId: channel,\n        language: language\n      };\n\n      if (service.hasOwnProperty('aspectRatio')) {\n        svcObj[language].aspectRatio = service.aspectRatio;\n      }\n\n      if (service.hasOwnProperty('easyReader')) {\n        svcObj[language].easyReader = service.easyReader;\n      }\n\n      if (service.hasOwnProperty('3D')) {\n        svcObj[language]['3D'] = service['3D'];\n      }\n    });\n    return svcObj;\n  }, {});\n};\n\nvar formatVideoPlaylist = function formatVideoPlaylist(_ref3) {\n  var _attributes2;\n\n  var attributes = _ref3.attributes,\n      segments = _ref3.segments,\n      sidx = _ref3.sidx;\n  var playlist = {\n    attributes: (_attributes2 = {\n      NAME: attributes.id,\n      AUDIO: 'audio',\n      SUBTITLES: 'subs',\n      RESOLUTION: {\n        width: attributes.width,\n        height: attributes.height\n      },\n      CODECS: attributes.codecs,\n      BANDWIDTH: attributes.bandwidth\n    }, _attributes2['PROGRAM-ID'] = 1, _attributes2),\n    uri: '',\n    endList: attributes.type === 'static',\n    timeline: attributes.periodIndex,\n    resolvedUri: '',\n    targetDuration: attributes.duration,\n    segments: segments,\n    mediaSequence: segments.length ? segments[0].number : 1\n  };\n\n  if (attributes.contentProtection) {\n    playlist.contentProtection = attributes.contentProtection;\n  }\n\n  if (sidx) {\n    playlist.sidx = sidx;\n  }\n\n  return playlist;\n};\n\nvar videoOnly = function videoOnly(_ref4) {\n  var attributes = _ref4.attributes;\n  return attributes.mimeType === 'video/mp4' || attributes.mimeType === 'video/webm' || attributes.contentType === 'video';\n};\n\nvar audioOnly = function audioOnly(_ref5) {\n  var attributes = _ref5.attributes;\n  return attributes.mimeType === 'audio/mp4' || attributes.mimeType === 'audio/webm' || attributes.contentType === 'audio';\n};\n\nvar vttOnly = function vttOnly(_ref6) {\n  var attributes = _ref6.attributes;\n  return attributes.mimeType === 'text/vtt' || attributes.contentType === 'text';\n};\n\nvar toM3u8 = function toM3u8(dashPlaylists, locations, sidxMapping) {\n  var _mediaGroups;\n\n  if (sidxMapping === void 0) {\n    sidxMapping = {};\n  }\n\n  if (!dashPlaylists.length) {\n    return {};\n  } // grab all main manifest attributes\n\n\n  var _dashPlaylists$0$attr = dashPlaylists[0].attributes,\n      duration = _dashPlaylists$0$attr.sourceDuration,\n      type = _dashPlaylists$0$attr.type,\n      suggestedPresentationDelay = _dashPlaylists$0$attr.suggestedPresentationDelay,\n      minimumUpdatePeriod = _dashPlaylists$0$attr.minimumUpdatePeriod;\n  var videoPlaylists = mergeDiscontiguousPlaylists(dashPlaylists.filter(videoOnly)).map(formatVideoPlaylist);\n  var audioPlaylists = mergeDiscontiguousPlaylists(dashPlaylists.filter(audioOnly));\n  var vttPlaylists = dashPlaylists.filter(vttOnly);\n  var captions = dashPlaylists.map(function (playlist) {\n    return playlist.attributes.captionServices;\n  }).filter(Boolean);\n  var manifest = {\n    allowCache: true,\n    discontinuityStarts: [],\n    segments: [],\n    endList: true,\n    mediaGroups: (_mediaGroups = {\n      AUDIO: {},\n      VIDEO: {}\n    }, _mediaGroups['CLOSED-CAPTIONS'] = {}, _mediaGroups.SUBTITLES = {}, _mediaGroups),\n    uri: '',\n    duration: duration,\n    playlists: addSidxSegmentsToPlaylists(videoPlaylists, sidxMapping)\n  };\n\n  if (minimumUpdatePeriod >= 0) {\n    manifest.minimumUpdatePeriod = minimumUpdatePeriod * 1000;\n  }\n\n  if (locations) {\n    manifest.locations = locations;\n  }\n\n  if (type === 'dynamic') {\n    manifest.suggestedPresentationDelay = suggestedPresentationDelay;\n  }\n\n  var isAudioOnly = manifest.playlists.length === 0;\n\n  if (audioPlaylists.length) {\n    manifest.mediaGroups.AUDIO.audio = organizeAudioPlaylists(audioPlaylists, sidxMapping, isAudioOnly);\n  }\n\n  if (vttPlaylists.length) {\n    manifest.mediaGroups.SUBTITLES.subs = organizeVttPlaylists(vttPlaylists, sidxMapping);\n  }\n\n  if (captions.length) {\n    manifest.mediaGroups['CLOSED-CAPTIONS'].cc = organizeCaptionServices(captions);\n  }\n\n  return manifest;\n};\n\n/**\n * Calculates the R (repetition) value for a live stream (for the final segment\n * in a manifest where the r value is negative 1)\n *\n * @param {Object} attributes\n *        Object containing all inherited attributes from parent elements with attribute\n *        names as keys\n * @param {number} time\n *        current time (typically the total time up until the final segment)\n * @param {number} duration\n *        duration property for the given <S />\n *\n * @return {number}\n *        R value to reach the end of the given period\n */\nvar getLiveRValue = function getLiveRValue(attributes, time, duration) {\n  var NOW = attributes.NOW,\n      clientOffset = attributes.clientOffset,\n      availabilityStartTime = attributes.availabilityStartTime,\n      _attributes$timescale = attributes.timescale,\n      timescale = _attributes$timescale === void 0 ? 1 : _attributes$timescale,\n      _attributes$start = attributes.start,\n      start = _attributes$start === void 0 ? 0 : _attributes$start,\n      _attributes$minimumUp = attributes.minimumUpdatePeriod,\n      minimumUpdatePeriod = _attributes$minimumUp === void 0 ? 0 : _attributes$minimumUp;\n  var now = (NOW + clientOffset) / 1000;\n  var periodStartWC = availabilityStartTime + start;\n  var periodEndWC = now + minimumUpdatePeriod;\n  var periodDuration = periodEndWC - periodStartWC;\n  return Math.ceil((periodDuration * timescale - time) / duration);\n};\n/**\n * Uses information provided by SegmentTemplate.SegmentTimeline to determine segment\n * timing and duration\n *\n * @param {Object} attributes\n *        Object containing all inherited attributes from parent elements with attribute\n *        names as keys\n * @param {Object[]} segmentTimeline\n *        List of objects representing the attributes of each S element contained within\n *\n * @return {{number: number, duration: number, time: number, timeline: number}[]}\n *         List of Objects with segment timing and duration info\n */\n\n\nvar parseByTimeline = function parseByTimeline(attributes, segmentTimeline) {\n  var type = attributes.type,\n      _attributes$minimumUp2 = attributes.minimumUpdatePeriod,\n      minimumUpdatePeriod = _attributes$minimumUp2 === void 0 ? 0 : _attributes$minimumUp2,\n      _attributes$media = attributes.media,\n      media = _attributes$media === void 0 ? '' : _attributes$media,\n      sourceDuration = attributes.sourceDuration,\n      _attributes$timescale2 = attributes.timescale,\n      timescale = _attributes$timescale2 === void 0 ? 1 : _attributes$timescale2,\n      _attributes$startNumb = attributes.startNumber,\n      startNumber = _attributes$startNumb === void 0 ? 1 : _attributes$startNumb,\n      timeline = attributes.periodIndex;\n  var segments = [];\n  var time = -1;\n\n  for (var sIndex = 0; sIndex < segmentTimeline.length; sIndex++) {\n    var S = segmentTimeline[sIndex];\n    var duration = S.d;\n    var repeat = S.r || 0;\n    var segmentTime = S.t || 0;\n\n    if (time < 0) {\n      // first segment\n      time = segmentTime;\n    }\n\n    if (segmentTime && segmentTime > time) {\n      // discontinuity\n      // TODO: How to handle this type of discontinuity\n      // timeline++ here would treat it like HLS discontuity and content would\n      // get appended without gap\n      // E.G.\n      //  <S t=\"0\" d=\"1\" />\n      //  <S d=\"1\" />\n      //  <S d=\"1\" />\n      //  <S t=\"5\" d=\"1\" />\n      // would have $Time$ values of [0, 1, 2, 5]\n      // should this be appened at time positions [0, 1, 2, 3],(#EXT-X-DISCONTINUITY)\n      // or [0, 1, 2, gap, gap, 5]? (#EXT-X-GAP)\n      // does the value of sourceDuration consider this when calculating arbitrary\n      // negative @r repeat value?\n      // E.G. Same elements as above with this added at the end\n      //  <S d=\"1\" r=\"-1\" />\n      //  with a sourceDuration of 10\n      // Would the 2 gaps be included in the time duration calculations resulting in\n      // 8 segments with $Time$ values of [0, 1, 2, 5, 6, 7, 8, 9] or 10 segments\n      // with $Time$ values of [0, 1, 2, 5, 6, 7, 8, 9, 10, 11] ?\n      time = segmentTime;\n    }\n\n    var count = void 0;\n\n    if (repeat < 0) {\n      var nextS = sIndex + 1;\n\n      if (nextS === segmentTimeline.length) {\n        // last segment\n        if (type === 'dynamic' && minimumUpdatePeriod > 0 && media.indexOf('$Number$') > 0) {\n          count = getLiveRValue(attributes, time, duration);\n        } else {\n          // TODO: This may be incorrect depending on conclusion of TODO above\n          count = (sourceDuration * timescale - time) / duration;\n        }\n      } else {\n        count = (segmentTimeline[nextS].t - time) / duration;\n      }\n    } else {\n      count = repeat + 1;\n    }\n\n    var end = startNumber + segments.length + count;\n    var number = startNumber + segments.length;\n\n    while (number < end) {\n      segments.push({\n        number: number,\n        duration: duration / timescale,\n        time: time,\n        timeline: timeline\n      });\n      time += duration;\n      number++;\n    }\n  }\n\n  return segments;\n};\n\nvar identifierPattern = /\\$([A-z]*)(?:(%0)([0-9]+)d)?\\$/g;\n/**\n * Replaces template identifiers with corresponding values. To be used as the callback\n * for String.prototype.replace\n *\n * @name replaceCallback\n * @function\n * @param {string} match\n *        Entire match of identifier\n * @param {string} identifier\n *        Name of matched identifier\n * @param {string} format\n *        Format tag string. Its presence indicates that padding is expected\n * @param {string} width\n *        Desired length of the replaced value. Values less than this width shall be left\n *        zero padded\n * @return {string}\n *         Replacement for the matched identifier\n */\n\n/**\n * Returns a function to be used as a callback for String.prototype.replace to replace\n * template identifiers\n *\n * @param {Obect} values\n *        Object containing values that shall be used to replace known identifiers\n * @param {number} values.RepresentationID\n *        Value of the Representation@id attribute\n * @param {number} values.Number\n *        Number of the corresponding segment\n * @param {number} values.Bandwidth\n *        Value of the Representation@bandwidth attribute.\n * @param {number} values.Time\n *        Timestamp value of the corresponding segment\n * @return {replaceCallback}\n *         Callback to be used with String.prototype.replace to replace identifiers\n */\n\nvar identifierReplacement = function identifierReplacement(values) {\n  return function (match, identifier, format, width) {\n    if (match === '$$') {\n      // escape sequence\n      return '$';\n    }\n\n    if (typeof values[identifier] === 'undefined') {\n      return match;\n    }\n\n    var value = '' + values[identifier];\n\n    if (identifier === 'RepresentationID') {\n      // Format tag shall not be present with RepresentationID\n      return value;\n    }\n\n    if (!format) {\n      width = 1;\n    } else {\n      width = parseInt(width, 10);\n    }\n\n    if (value.length >= width) {\n      return value;\n    }\n\n    return \"\" + new Array(width - value.length + 1).join('0') + value;\n  };\n};\n/**\n * Constructs a segment url from a template string\n *\n * @param {string} url\n *        Template string to construct url from\n * @param {Obect} values\n *        Object containing values that shall be used to replace known identifiers\n * @param {number} values.RepresentationID\n *        Value of the Representation@id attribute\n * @param {number} values.Number\n *        Number of the corresponding segment\n * @param {number} values.Bandwidth\n *        Value of the Representation@bandwidth attribute.\n * @param {number} values.Time\n *        Timestamp value of the corresponding segment\n * @return {string}\n *         Segment url with identifiers replaced\n */\n\nvar constructTemplateUrl = function constructTemplateUrl(url, values) {\n  return url.replace(identifierPattern, identifierReplacement(values));\n};\n/**\n * Generates a list of objects containing timing and duration information about each\n * segment needed to generate segment uris and the complete segment object\n *\n * @param {Object} attributes\n *        Object containing all inherited attributes from parent elements with attribute\n *        names as keys\n * @param {Object[]|undefined} segmentTimeline\n *        List of objects representing the attributes of each S element contained within\n *        the SegmentTimeline element\n * @return {{number: number, duration: number, time: number, timeline: number}[]}\n *         List of Objects with segment timing and duration info\n */\n\nvar parseTemplateInfo = function parseTemplateInfo(attributes, segmentTimeline) {\n  if (!attributes.duration && !segmentTimeline) {\n    // if neither @duration or SegmentTimeline are present, then there shall be exactly\n    // one media segment\n    return [{\n      number: attributes.startNumber || 1,\n      duration: attributes.sourceDuration,\n      time: 0,\n      timeline: attributes.periodIndex\n    }];\n  }\n\n  if (attributes.duration) {\n    return parseByDuration(attributes);\n  }\n\n  return parseByTimeline(attributes, segmentTimeline);\n};\n/**\n * Generates a list of segments using information provided by the SegmentTemplate element\n *\n * @param {Object} attributes\n *        Object containing all inherited attributes from parent elements with attribute\n *        names as keys\n * @param {Object[]|undefined} segmentTimeline\n *        List of objects representing the attributes of each S element contained within\n *        the SegmentTimeline element\n * @return {Object[]}\n *         List of segment objects\n */\n\nvar segmentsFromTemplate = function segmentsFromTemplate(attributes, segmentTimeline) {\n  var templateValues = {\n    RepresentationID: attributes.id,\n    Bandwidth: attributes.bandwidth || 0\n  };\n  var _attributes$initializ = attributes.initialization,\n      initialization = _attributes$initializ === void 0 ? {\n    sourceURL: '',\n    range: ''\n  } : _attributes$initializ;\n  var mapSegment = urlTypeToSegment({\n    baseUrl: attributes.baseUrl,\n    source: constructTemplateUrl(initialization.sourceURL, templateValues),\n    range: initialization.range\n  });\n  var segments = parseTemplateInfo(attributes, segmentTimeline);\n  return segments.map(function (segment) {\n    templateValues.Number = segment.number;\n    templateValues.Time = segment.time;\n    var uri = constructTemplateUrl(attributes.media || '', templateValues); // See DASH spec section 5.3.9.2.2\n    // - if timescale isn't present on any level, default to 1.\n\n    var timescale = attributes.timescale || 1; // - if presentationTimeOffset isn't present on any level, default to 0\n\n    var presentationTimeOffset = attributes.presentationTimeOffset || 0;\n    var presentationTime = // Even if the @t attribute is not specified for the segment, segment.time is\n    // calculated in mpd-parser prior to this, so it's assumed to be available.\n    attributes.periodStart + (segment.time - presentationTimeOffset) / timescale;\n    var map = {\n      uri: uri,\n      timeline: segment.timeline,\n      duration: segment.duration,\n      resolvedUri: resolveUrl(attributes.baseUrl || '', uri),\n      map: mapSegment,\n      number: segment.number,\n      presentationTime: presentationTime\n    };\n    return map;\n  });\n};\n\n/**\n * Converts a <SegmentUrl> (of type URLType from the DASH spec 5.3.9.2 Table 14)\n * to an object that matches the output of a segment in videojs/mpd-parser\n *\n * @param {Object} attributes\n *   Object containing all inherited attributes from parent elements with attribute\n *   names as keys\n * @param {Object} segmentUrl\n *   <SegmentURL> node to translate into a segment object\n * @return {Object} translated segment object\n */\n\nvar SegmentURLToSegmentObject = function SegmentURLToSegmentObject(attributes, segmentUrl) {\n  var baseUrl = attributes.baseUrl,\n      _attributes$initializ = attributes.initialization,\n      initialization = _attributes$initializ === void 0 ? {} : _attributes$initializ;\n  var initSegment = urlTypeToSegment({\n    baseUrl: baseUrl,\n    source: initialization.sourceURL,\n    range: initialization.range\n  });\n  var segment = urlTypeToSegment({\n    baseUrl: baseUrl,\n    source: segmentUrl.media,\n    range: segmentUrl.mediaRange\n  });\n  segment.map = initSegment;\n  return segment;\n};\n/**\n * Generates a list of segments using information provided by the SegmentList element\n * SegmentList (DASH SPEC Section 5.3.9.3.2) contains a set of <SegmentURL> nodes.  Each\n * node should be translated into segment.\n *\n * @param {Object} attributes\n *   Object containing all inherited attributes from parent elements with attribute\n *   names as keys\n * @param {Object[]|undefined} segmentTimeline\n *        List of objects representing the attributes of each S element contained within\n *        the SegmentTimeline element\n * @return {Object.<Array>} list of segments\n */\n\n\nvar segmentsFromList = function segmentsFromList(attributes, segmentTimeline) {\n  var duration = attributes.duration,\n      _attributes$segmentUr = attributes.segmentUrls,\n      segmentUrls = _attributes$segmentUr === void 0 ? [] : _attributes$segmentUr,\n      periodStart = attributes.periodStart; // Per spec (5.3.9.2.1) no way to determine segment duration OR\n  // if both SegmentTimeline and @duration are defined, it is outside of spec.\n\n  if (!duration && !segmentTimeline || duration && segmentTimeline) {\n    throw new Error(errors.SEGMENT_TIME_UNSPECIFIED);\n  }\n\n  var segmentUrlMap = segmentUrls.map(function (segmentUrlObject) {\n    return SegmentURLToSegmentObject(attributes, segmentUrlObject);\n  });\n  var segmentTimeInfo;\n\n  if (duration) {\n    segmentTimeInfo = parseByDuration(attributes);\n  }\n\n  if (segmentTimeline) {\n    segmentTimeInfo = parseByTimeline(attributes, segmentTimeline);\n  }\n\n  var segments = segmentTimeInfo.map(function (segmentTime, index) {\n    if (segmentUrlMap[index]) {\n      var segment = segmentUrlMap[index]; // See DASH spec section 5.3.9.2.2\n      // - if timescale isn't present on any level, default to 1.\n\n      var timescale = attributes.timescale || 1; // - if presentationTimeOffset isn't present on any level, default to 0\n\n      var presentationTimeOffset = attributes.presentationTimeOffset || 0;\n      segment.timeline = segmentTime.timeline;\n      segment.duration = segmentTime.duration;\n      segment.number = segmentTime.number;\n      segment.presentationTime = periodStart + (segmentTime.time - presentationTimeOffset) / timescale;\n      return segment;\n    } // Since we're mapping we should get rid of any blank segments (in case\n    // the given SegmentTimeline is handling for more elements than we have\n    // SegmentURLs for).\n\n  }).filter(function (segment) {\n    return segment;\n  });\n  return segments;\n};\n\nvar generateSegments = function generateSegments(_ref) {\n  var attributes = _ref.attributes,\n      segmentInfo = _ref.segmentInfo;\n  var segmentAttributes;\n  var segmentsFn;\n\n  if (segmentInfo.template) {\n    segmentsFn = segmentsFromTemplate;\n    segmentAttributes = merge(attributes, segmentInfo.template);\n  } else if (segmentInfo.base) {\n    segmentsFn = segmentsFromBase;\n    segmentAttributes = merge(attributes, segmentInfo.base);\n  } else if (segmentInfo.list) {\n    segmentsFn = segmentsFromList;\n    segmentAttributes = merge(attributes, segmentInfo.list);\n  }\n\n  var segmentsInfo = {\n    attributes: attributes\n  };\n\n  if (!segmentsFn) {\n    return segmentsInfo;\n  }\n\n  var segments = segmentsFn(segmentAttributes, segmentInfo.segmentTimeline); // The @duration attribute will be used to determin the playlist's targetDuration which\n  // must be in seconds. Since we've generated the segment list, we no longer need\n  // @duration to be in @timescale units, so we can convert it here.\n\n  if (segmentAttributes.duration) {\n    var _segmentAttributes = segmentAttributes,\n        duration = _segmentAttributes.duration,\n        _segmentAttributes$ti = _segmentAttributes.timescale,\n        timescale = _segmentAttributes$ti === void 0 ? 1 : _segmentAttributes$ti;\n    segmentAttributes.duration = duration / timescale;\n  } else if (segments.length) {\n    // if there is no @duration attribute, use the largest segment duration as\n    // as target duration\n    segmentAttributes.duration = segments.reduce(function (max, segment) {\n      return Math.max(max, Math.ceil(segment.duration));\n    }, 0);\n  } else {\n    segmentAttributes.duration = 0;\n  }\n\n  segmentsInfo.attributes = segmentAttributes;\n  segmentsInfo.segments = segments; // This is a sidx box without actual segment information\n\n  if (segmentInfo.base && segmentAttributes.indexRange) {\n    segmentsInfo.sidx = segments[0];\n    segmentsInfo.segments = [];\n  }\n\n  return segmentsInfo;\n};\nvar toPlaylists = function toPlaylists(representations) {\n  return representations.map(generateSegments);\n};\n\nvar findChildren = function findChildren(element, name) {\n  return from(element.childNodes).filter(function (_ref) {\n    var tagName = _ref.tagName;\n    return tagName === name;\n  });\n};\nvar getContent = function getContent(element) {\n  return element.textContent.trim();\n};\n\nvar parseDuration = function parseDuration(str) {\n  var SECONDS_IN_YEAR = 365 * 24 * 60 * 60;\n  var SECONDS_IN_MONTH = 30 * 24 * 60 * 60;\n  var SECONDS_IN_DAY = 24 * 60 * 60;\n  var SECONDS_IN_HOUR = 60 * 60;\n  var SECONDS_IN_MIN = 60; // P10Y10M10DT10H10M10.1S\n\n  var durationRegex = /P(?:(\\d*)Y)?(?:(\\d*)M)?(?:(\\d*)D)?(?:T(?:(\\d*)H)?(?:(\\d*)M)?(?:([\\d.]*)S)?)?/;\n  var match = durationRegex.exec(str);\n\n  if (!match) {\n    return 0;\n  }\n\n  var _match$slice = match.slice(1),\n      year = _match$slice[0],\n      month = _match$slice[1],\n      day = _match$slice[2],\n      hour = _match$slice[3],\n      minute = _match$slice[4],\n      second = _match$slice[5];\n\n  return parseFloat(year || 0) * SECONDS_IN_YEAR + parseFloat(month || 0) * SECONDS_IN_MONTH + parseFloat(day || 0) * SECONDS_IN_DAY + parseFloat(hour || 0) * SECONDS_IN_HOUR + parseFloat(minute || 0) * SECONDS_IN_MIN + parseFloat(second || 0);\n};\nvar parseDate = function parseDate(str) {\n  // Date format without timezone according to ISO 8601\n  // YYY-MM-DDThh:mm:ss.ssssss\n  var dateRegex = /^\\d+-\\d+-\\d+T\\d+:\\d+:\\d+(\\.\\d+)?$/; // If the date string does not specifiy a timezone, we must specifiy UTC. This is\n  // expressed by ending with 'Z'\n\n  if (dateRegex.test(str)) {\n    str += 'Z';\n  }\n\n  return Date.parse(str);\n};\n\nvar parsers = {\n  /**\n   * Specifies the duration of the entire Media Presentation. Format is a duration string\n   * as specified in ISO 8601\n   *\n   * @param {string} value\n   *        value of attribute as a string\n   * @return {number}\n   *         The duration in seconds\n   */\n  mediaPresentationDuration: function mediaPresentationDuration(value) {\n    return parseDuration(value);\n  },\n\n  /**\n   * Specifies the Segment availability start time for all Segments referred to in this\n   * MPD. For a dynamic manifest, it specifies the anchor for the earliest availability\n   * time. Format is a date string as specified in ISO 8601\n   *\n   * @param {string} value\n   *        value of attribute as a string\n   * @return {number}\n   *         The date as seconds from unix epoch\n   */\n  availabilityStartTime: function availabilityStartTime(value) {\n    return parseDate(value) / 1000;\n  },\n\n  /**\n   * Specifies the smallest period between potential changes to the MPD. Format is a\n   * duration string as specified in ISO 8601\n   *\n   * @param {string} value\n   *        value of attribute as a string\n   * @return {number}\n   *         The duration in seconds\n   */\n  minimumUpdatePeriod: function minimumUpdatePeriod(value) {\n    return parseDuration(value);\n  },\n\n  /**\n   * Specifies the suggested presentation delay. Format is a\n   * duration string as specified in ISO 8601\n   *\n   * @param {string} value\n   *        value of attribute as a string\n   * @return {number}\n   *         The duration in seconds\n   */\n  suggestedPresentationDelay: function suggestedPresentationDelay(value) {\n    return parseDuration(value);\n  },\n\n  /**\n   * specifices the type of mpd. Can be either \"static\" or \"dynamic\"\n   *\n   * @param {string} value\n   *        value of attribute as a string\n   *\n   * @return {string}\n   *         The type as a string\n   */\n  type: function type(value) {\n    return value;\n  },\n\n  /**\n   * Specifies the duration of the smallest time shifting buffer for any Representation\n   * in the MPD. Format is a duration string as specified in ISO 8601\n   *\n   * @param {string} value\n   *        value of attribute as a string\n   * @return {number}\n   *         The duration in seconds\n   */\n  timeShiftBufferDepth: function timeShiftBufferDepth(value) {\n    return parseDuration(value);\n  },\n\n  /**\n   * Specifies the PeriodStart time of the Period relative to the availabilityStarttime.\n   * Format is a duration string as specified in ISO 8601\n   *\n   * @param {string} value\n   *        value of attribute as a string\n   * @return {number}\n   *         The duration in seconds\n   */\n  start: function start(value) {\n    return parseDuration(value);\n  },\n\n  /**\n   * Specifies the width of the visual presentation\n   *\n   * @param {string} value\n   *        value of attribute as a string\n   * @return {number}\n   *         The parsed width\n   */\n  width: function width(value) {\n    return parseInt(value, 10);\n  },\n\n  /**\n   * Specifies the height of the visual presentation\n   *\n   * @param {string} value\n   *        value of attribute as a string\n   * @return {number}\n   *         The parsed height\n   */\n  height: function height(value) {\n    return parseInt(value, 10);\n  },\n\n  /**\n   * Specifies the bitrate of the representation\n   *\n   * @param {string} value\n   *        value of attribute as a string\n   * @return {number}\n   *         The parsed bandwidth\n   */\n  bandwidth: function bandwidth(value) {\n    return parseInt(value, 10);\n  },\n\n  /**\n   * Specifies the number of the first Media Segment in this Representation in the Period\n   *\n   * @param {string} value\n   *        value of attribute as a string\n   * @return {number}\n   *         The parsed number\n   */\n  startNumber: function startNumber(value) {\n    return parseInt(value, 10);\n  },\n\n  /**\n   * Specifies the timescale in units per seconds\n   *\n   * @param {string} value\n   *        value of attribute as a string\n   * @return {number}\n   *         The parsed timescale\n   */\n  timescale: function timescale(value) {\n    return parseInt(value, 10);\n  },\n\n  /**\n   * Specifies the presentationTimeOffset.\n   *\n   * @param {string} value\n   *        value of the attribute as a string\n   *\n   * @return {number}\n   *         The parsed presentationTimeOffset\n   */\n  presentationTimeOffset: function presentationTimeOffset(value) {\n    return parseInt(value, 10);\n  },\n\n  /**\n   * Specifies the constant approximate Segment duration\n   * NOTE: The <Period> element also contains an @duration attribute. This duration\n   *       specifies the duration of the Period. This attribute is currently not\n   *       supported by the rest of the parser, however we still check for it to prevent\n   *       errors.\n   *\n   * @param {string} value\n   *        value of attribute as a string\n   * @return {number}\n   *         The parsed duration\n   */\n  duration: function duration(value) {\n    var parsedValue = parseInt(value, 10);\n\n    if (isNaN(parsedValue)) {\n      return parseDuration(value);\n    }\n\n    return parsedValue;\n  },\n\n  /**\n   * Specifies the Segment duration, in units of the value of the @timescale.\n   *\n   * @param {string} value\n   *        value of attribute as a string\n   * @return {number}\n   *         The parsed duration\n   */\n  d: function d(value) {\n    return parseInt(value, 10);\n  },\n\n  /**\n   * Specifies the MPD start time, in @timescale units, the first Segment in the series\n   * starts relative to the beginning of the Period\n   *\n   * @param {string} value\n   *        value of attribute as a string\n   * @return {number}\n   *         The parsed time\n   */\n  t: function t(value) {\n    return parseInt(value, 10);\n  },\n\n  /**\n   * Specifies the repeat count of the number of following contiguous Segments with the\n   * same duration expressed by the value of @d\n   *\n   * @param {string} value\n   *        value of attribute as a string\n   * @return {number}\n   *         The parsed number\n   */\n  r: function r(value) {\n    return parseInt(value, 10);\n  },\n\n  /**\n   * Default parser for all other attributes. Acts as a no-op and just returns the value\n   * as a string\n   *\n   * @param {string} value\n   *        value of attribute as a string\n   * @return {string}\n   *         Unparsed value\n   */\n  DEFAULT: function DEFAULT(value) {\n    return value;\n  }\n};\n/**\n * Gets all the attributes and values of the provided node, parses attributes with known\n * types, and returns an object with attribute names mapped to values.\n *\n * @param {Node} el\n *        The node to parse attributes from\n * @return {Object}\n *         Object with all attributes of el parsed\n */\n\nvar parseAttributes = function parseAttributes(el) {\n  if (!(el && el.attributes)) {\n    return {};\n  }\n\n  return from(el.attributes).reduce(function (a, e) {\n    var parseFn = parsers[e.name] || parsers.DEFAULT;\n    a[e.name] = parseFn(e.value);\n    return a;\n  }, {});\n};\n\nvar keySystemsMap = {\n  'urn:uuid:1077efec-c0b2-4d02-ace3-3c1e52e2fb4b': 'org.w3.clearkey',\n  'urn:uuid:edef8ba9-79d6-4ace-a3c8-27dcd51d21ed': 'com.widevine.alpha',\n  'urn:uuid:9a04f079-9840-4286-ab92-e65be0885f95': 'com.microsoft.playready',\n  'urn:uuid:f239e769-efa3-4850-9c16-a903c6932efb': 'com.adobe.primetime'\n};\n/**\n * Builds a list of urls that is the product of the reference urls and BaseURL values\n *\n * @param {string[]} referenceUrls\n *        List of reference urls to resolve to\n * @param {Node[]} baseUrlElements\n *        List of BaseURL nodes from the mpd\n * @return {string[]}\n *         List of resolved urls\n */\n\nvar buildBaseUrls = function buildBaseUrls(referenceUrls, baseUrlElements) {\n  if (!baseUrlElements.length) {\n    return referenceUrls;\n  }\n\n  return flatten(referenceUrls.map(function (reference) {\n    return baseUrlElements.map(function (baseUrlElement) {\n      return resolveUrl(reference, getContent(baseUrlElement));\n    });\n  }));\n};\n/**\n * Contains all Segment information for its containing AdaptationSet\n *\n * @typedef {Object} SegmentInformation\n * @property {Object|undefined} template\n *           Contains the attributes for the SegmentTemplate node\n * @property {Object[]|undefined} segmentTimeline\n *           Contains a list of atrributes for each S node within the SegmentTimeline node\n * @property {Object|undefined} list\n *           Contains the attributes for the SegmentList node\n * @property {Object|undefined} base\n *           Contains the attributes for the SegmentBase node\n */\n\n/**\n * Returns all available Segment information contained within the AdaptationSet node\n *\n * @param {Node} adaptationSet\n *        The AdaptationSet node to get Segment information from\n * @return {SegmentInformation}\n *         The Segment information contained within the provided AdaptationSet\n */\n\nvar getSegmentInformation = function getSegmentInformation(adaptationSet) {\n  var segmentTemplate = findChildren(adaptationSet, 'SegmentTemplate')[0];\n  var segmentList = findChildren(adaptationSet, 'SegmentList')[0];\n  var segmentUrls = segmentList && findChildren(segmentList, 'SegmentURL').map(function (s) {\n    return merge({\n      tag: 'SegmentURL'\n    }, parseAttributes(s));\n  });\n  var segmentBase = findChildren(adaptationSet, 'SegmentBase')[0];\n  var segmentTimelineParentNode = segmentList || segmentTemplate;\n  var segmentTimeline = segmentTimelineParentNode && findChildren(segmentTimelineParentNode, 'SegmentTimeline')[0];\n  var segmentInitializationParentNode = segmentList || segmentBase || segmentTemplate;\n  var segmentInitialization = segmentInitializationParentNode && findChildren(segmentInitializationParentNode, 'Initialization')[0]; // SegmentTemplate is handled slightly differently, since it can have both\n  // @initialization and an <Initialization> node.  @initialization can be templated,\n  // while the node can have a url and range specified.  If the <SegmentTemplate> has\n  // both @initialization and an <Initialization> subelement we opt to override with\n  // the node, as this interaction is not defined in the spec.\n\n  var template = segmentTemplate && parseAttributes(segmentTemplate);\n\n  if (template && segmentInitialization) {\n    template.initialization = segmentInitialization && parseAttributes(segmentInitialization);\n  } else if (template && template.initialization) {\n    // If it is @initialization we convert it to an object since this is the format that\n    // later functions will rely on for the initialization segment.  This is only valid\n    // for <SegmentTemplate>\n    template.initialization = {\n      sourceURL: template.initialization\n    };\n  }\n\n  var segmentInfo = {\n    template: template,\n    segmentTimeline: segmentTimeline && findChildren(segmentTimeline, 'S').map(function (s) {\n      return parseAttributes(s);\n    }),\n    list: segmentList && merge(parseAttributes(segmentList), {\n      segmentUrls: segmentUrls,\n      initialization: parseAttributes(segmentInitialization)\n    }),\n    base: segmentBase && merge(parseAttributes(segmentBase), {\n      initialization: parseAttributes(segmentInitialization)\n    })\n  };\n  Object.keys(segmentInfo).forEach(function (key) {\n    if (!segmentInfo[key]) {\n      delete segmentInfo[key];\n    }\n  });\n  return segmentInfo;\n};\n/**\n * Contains Segment information and attributes needed to construct a Playlist object\n * from a Representation\n *\n * @typedef {Object} RepresentationInformation\n * @property {SegmentInformation} segmentInfo\n *           Segment information for this Representation\n * @property {Object} attributes\n *           Inherited attributes for this Representation\n */\n\n/**\n * Maps a Representation node to an object containing Segment information and attributes\n *\n * @name inheritBaseUrlsCallback\n * @function\n * @param {Node} representation\n *        Representation node from the mpd\n * @return {RepresentationInformation}\n *         Representation information needed to construct a Playlist object\n */\n\n/**\n * Returns a callback for Array.prototype.map for mapping Representation nodes to\n * Segment information and attributes using inherited BaseURL nodes.\n *\n * @param {Object} adaptationSetAttributes\n *        Contains attributes inherited by the AdaptationSet\n * @param {string[]} adaptationSetBaseUrls\n *        Contains list of resolved base urls inherited by the AdaptationSet\n * @param {SegmentInformation} adaptationSetSegmentInfo\n *        Contains Segment information for the AdaptationSet\n * @return {inheritBaseUrlsCallback}\n *         Callback map function\n */\n\nvar inheritBaseUrls = function inheritBaseUrls(adaptationSetAttributes, adaptationSetBaseUrls, adaptationSetSegmentInfo) {\n  return function (representation) {\n    var repBaseUrlElements = findChildren(representation, 'BaseURL');\n    var repBaseUrls = buildBaseUrls(adaptationSetBaseUrls, repBaseUrlElements);\n    var attributes = merge(adaptationSetAttributes, parseAttributes(representation));\n    var representationSegmentInfo = getSegmentInformation(representation);\n    return repBaseUrls.map(function (baseUrl) {\n      return {\n        segmentInfo: merge(adaptationSetSegmentInfo, representationSegmentInfo),\n        attributes: merge(attributes, {\n          baseUrl: baseUrl\n        })\n      };\n    });\n  };\n};\n/**\n * Tranforms a series of content protection nodes to\n * an object containing pssh data by key system\n *\n * @param {Node[]} contentProtectionNodes\n *        Content protection nodes\n * @return {Object}\n *        Object containing pssh data by key system\n */\n\nvar generateKeySystemInformation = function generateKeySystemInformation(contentProtectionNodes) {\n  return contentProtectionNodes.reduce(function (acc, node) {\n    var attributes = parseAttributes(node);\n    var keySystem = keySystemsMap[attributes.schemeIdUri];\n\n    if (keySystem) {\n      acc[keySystem] = {\n        attributes: attributes\n      };\n      var psshNode = findChildren(node, 'cenc:pssh')[0];\n\n      if (psshNode) {\n        var pssh = getContent(psshNode);\n        var psshBuffer = pssh && decodeB64ToUint8Array(pssh);\n        acc[keySystem].pssh = psshBuffer;\n      }\n    }\n\n    return acc;\n  }, {});\n}; // defined in ANSI_SCTE 214-1 2016\n\n\nvar parseCaptionServiceMetadata = function parseCaptionServiceMetadata(service) {\n  // 608 captions\n  if (service.schemeIdUri === 'urn:scte:dash:cc:cea-608:2015') {\n    var values = service.value.split(';');\n    return values.map(function (value) {\n      var channel;\n      var language; // default language to value\n\n      language = value;\n\n      if (/^CC\\d=/.test(value)) {\n        var _value$split = value.split('=');\n\n        channel = _value$split[0];\n        language = _value$split[1];\n      } else if (/^CC\\d$/.test(value)) {\n        channel = value;\n      }\n\n      return {\n        channel: channel,\n        language: language\n      };\n    });\n  } else if (service.schemeIdUri === 'urn:scte:dash:cc:cea-708:2015') {\n    var _values = service.value.split(';');\n\n    return _values.map(function (value) {\n      var flags = {\n        // service or channel number 1-63\n        'channel': undefined,\n        // language is a 3ALPHA per ISO 639.2/B\n        // field is required\n        'language': undefined,\n        // BIT 1/0 or ?\n        // default value is 1, meaning 16:9 aspect ratio, 0 is 4:3, ? is unknown\n        'aspectRatio': 1,\n        // BIT 1/0\n        // easy reader flag indicated the text is tailed to the needs of beginning readers\n        // default 0, or off\n        'easyReader': 0,\n        // BIT 1/0\n        // If 3d metadata is present (CEA-708.1) then 1\n        // default 0\n        '3D': 0\n      };\n\n      if (/=/.test(value)) {\n        var _value$split2 = value.split('='),\n            channel = _value$split2[0],\n            _value$split2$ = _value$split2[1],\n            opts = _value$split2$ === void 0 ? '' : _value$split2$;\n\n        flags.channel = channel;\n        flags.language = value;\n        opts.split(',').forEach(function (opt) {\n          var _opt$split = opt.split(':'),\n              name = _opt$split[0],\n              val = _opt$split[1];\n\n          if (name === 'lang') {\n            flags.language = val; // er for easyReadery\n          } else if (name === 'er') {\n            flags.easyReader = Number(val); // war for wide aspect ratio\n          } else if (name === 'war') {\n            flags.aspectRatio = Number(val);\n          } else if (name === '3D') {\n            flags['3D'] = Number(val);\n          }\n        });\n      } else {\n        flags.language = value;\n      }\n\n      if (flags.channel) {\n        flags.channel = 'SERVICE' + flags.channel;\n      }\n\n      return flags;\n    });\n  }\n};\n/**\n * Maps an AdaptationSet node to a list of Representation information objects\n *\n * @name toRepresentationsCallback\n * @function\n * @param {Node} adaptationSet\n *        AdaptationSet node from the mpd\n * @return {RepresentationInformation[]}\n *         List of objects containing Representaion information\n */\n\n/**\n * Returns a callback for Array.prototype.map for mapping AdaptationSet nodes to a list of\n * Representation information objects\n *\n * @param {Object} periodAttributes\n *        Contains attributes inherited by the Period\n * @param {string[]} periodBaseUrls\n *        Contains list of resolved base urls inherited by the Period\n * @param {string[]} periodSegmentInfo\n *        Contains Segment Information at the period level\n * @return {toRepresentationsCallback}\n *         Callback map function\n */\n\nvar toRepresentations = function toRepresentations(periodAttributes, periodBaseUrls, periodSegmentInfo) {\n  return function (adaptationSet) {\n    var adaptationSetAttributes = parseAttributes(adaptationSet);\n    var adaptationSetBaseUrls = buildBaseUrls(periodBaseUrls, findChildren(adaptationSet, 'BaseURL'));\n    var role = findChildren(adaptationSet, 'Role')[0];\n    var roleAttributes = {\n      role: parseAttributes(role)\n    };\n    var attrs = merge(periodAttributes, adaptationSetAttributes, roleAttributes);\n    var accessibility = findChildren(adaptationSet, 'Accessibility')[0];\n    var captionServices = parseCaptionServiceMetadata(parseAttributes(accessibility));\n\n    if (captionServices) {\n      attrs = merge(attrs, {\n        captionServices: captionServices\n      });\n    }\n\n    var label = findChildren(adaptationSet, 'Label')[0];\n\n    if (label && label.childNodes.length) {\n      var labelVal = label.childNodes[0].nodeValue.trim();\n      attrs = merge(attrs, {\n        label: labelVal\n      });\n    }\n\n    var contentProtection = generateKeySystemInformation(findChildren(adaptationSet, 'ContentProtection'));\n\n    if (Object.keys(contentProtection).length) {\n      attrs = merge(attrs, {\n        contentProtection: contentProtection\n      });\n    }\n\n    var segmentInfo = getSegmentInformation(adaptationSet);\n    var representations = findChildren(adaptationSet, 'Representation');\n    var adaptationSetSegmentInfo = merge(periodSegmentInfo, segmentInfo);\n    return flatten(representations.map(inheritBaseUrls(attrs, adaptationSetBaseUrls, adaptationSetSegmentInfo)));\n  };\n};\n/**\n * Contains all period information for mapping nodes onto adaptation sets.\n *\n * @typedef {Object} PeriodInformation\n * @property {Node} period.node\n *           Period node from the mpd\n * @property {Object} period.attributes\n *           Parsed period attributes from node plus any added\n */\n\n/**\n * Maps a PeriodInformation object to a list of Representation information objects for all\n * AdaptationSet nodes contained within the Period.\n *\n * @name toAdaptationSetsCallback\n * @function\n * @param {PeriodInformation} period\n *        Period object containing necessary period information\n * @param {number} periodIndex\n *        Index of the Period within the mpd\n * @return {RepresentationInformation[]}\n *         List of objects containing Representaion information\n */\n\n/**\n * Returns a callback for Array.prototype.map for mapping Period nodes to a list of\n * Representation information objects\n *\n * @param {Object} mpdAttributes\n *        Contains attributes inherited by the mpd\n * @param {string[]} mpdBaseUrls\n *        Contains list of resolved base urls inherited by the mpd\n * @return {toAdaptationSetsCallback}\n *         Callback map function\n */\n\nvar toAdaptationSets = function toAdaptationSets(mpdAttributes, mpdBaseUrls) {\n  return function (period, index) {\n    var periodBaseUrls = buildBaseUrls(mpdBaseUrls, findChildren(period.node, 'BaseURL'));\n    var parsedPeriodId = parseInt(period.attributes.id, 10); // fallback to mapping index if Period@id is not a number\n\n    var periodIndex = window.isNaN(parsedPeriodId) ? index : parsedPeriodId;\n    var periodAttributes = merge(mpdAttributes, {\n      periodIndex: periodIndex,\n      periodStart: period.attributes.start\n    });\n\n    if (typeof period.attributes.duration === 'number') {\n      periodAttributes.periodDuration = period.attributes.duration;\n    }\n\n    var adaptationSets = findChildren(period.node, 'AdaptationSet');\n    var periodSegmentInfo = getSegmentInformation(period.node);\n    return flatten(adaptationSets.map(toRepresentations(periodAttributes, periodBaseUrls, periodSegmentInfo)));\n  };\n};\n/**\n * Gets Period@start property for a given period.\n *\n * @param {Object} options\n *        Options object\n * @param {Object} options.attributes\n *        Period attributes\n * @param {Object} [options.priorPeriodAttributes]\n *        Prior period attributes (if prior period is available)\n * @param {string} options.mpdType\n *        The MPD@type these periods came from\n * @return {number|null}\n *         The period start, or null if it's an early available period or error\n */\n\nvar getPeriodStart = function getPeriodStart(_ref) {\n  var attributes = _ref.attributes,\n      priorPeriodAttributes = _ref.priorPeriodAttributes,\n      mpdType = _ref.mpdType;\n\n  // Summary of period start time calculation from DASH spec section 5.3.2.1\n  //\n  // A period's start is the first period's start + time elapsed after playing all\n  // prior periods to this one. Periods continue one after the other in time (without\n  // gaps) until the end of the presentation.\n  //\n  // The value of Period@start should be:\n  // 1. if Period@start is present: value of Period@start\n  // 2. if previous period exists and it has @duration: previous Period@start +\n  //    previous Period@duration\n  // 3. if this is first period and MPD@type is 'static': 0\n  // 4. in all other cases, consider the period an \"early available period\" (note: not\n  //    currently supported)\n  // (1)\n  if (typeof attributes.start === 'number') {\n    return attributes.start;\n  } // (2)\n\n\n  if (priorPeriodAttributes && typeof priorPeriodAttributes.start === 'number' && typeof priorPeriodAttributes.duration === 'number') {\n    return priorPeriodAttributes.start + priorPeriodAttributes.duration;\n  } // (3)\n\n\n  if (!priorPeriodAttributes && mpdType === 'static') {\n    return 0;\n  } // (4)\n  // There is currently no logic for calculating the Period@start value if there is\n  // no Period@start or prior Period@start and Period@duration available. This is not made\n  // explicit by the DASH interop guidelines or the DASH spec, however, since there's\n  // nothing about any other resolution strategies, it's implied. Thus, this case should\n  // be considered an early available period, or error, and null should suffice for both\n  // of those cases.\n\n\n  return null;\n};\n/**\n * Traverses the mpd xml tree to generate a list of Representation information objects\n * that have inherited attributes from parent nodes\n *\n * @param {Node} mpd\n *        The root node of the mpd\n * @param {Object} options\n *        Available options for inheritAttributes\n * @param {string} options.manifestUri\n *        The uri source of the mpd\n * @param {number} options.NOW\n *        Current time per DASH IOP.  Default is current time in ms since epoch\n * @param {number} options.clientOffset\n *        Client time difference from NOW (in milliseconds)\n * @return {RepresentationInformation[]}\n *         List of objects containing Representation information\n */\n\nvar inheritAttributes = function inheritAttributes(mpd, options) {\n  if (options === void 0) {\n    options = {};\n  }\n\n  var _options = options,\n      _options$manifestUri = _options.manifestUri,\n      manifestUri = _options$manifestUri === void 0 ? '' : _options$manifestUri,\n      _options$NOW = _options.NOW,\n      NOW = _options$NOW === void 0 ? Date.now() : _options$NOW,\n      _options$clientOffset = _options.clientOffset,\n      clientOffset = _options$clientOffset === void 0 ? 0 : _options$clientOffset;\n  var periodNodes = findChildren(mpd, 'Period');\n\n  if (!periodNodes.length) {\n    throw new Error(errors.INVALID_NUMBER_OF_PERIOD);\n  }\n\n  var locations = findChildren(mpd, 'Location');\n  var mpdAttributes = parseAttributes(mpd);\n  var mpdBaseUrls = buildBaseUrls([manifestUri], findChildren(mpd, 'BaseURL')); // See DASH spec section 5.3.1.2, Semantics of MPD element. Default type to 'static'.\n\n  mpdAttributes.type = mpdAttributes.type || 'static';\n  mpdAttributes.sourceDuration = mpdAttributes.mediaPresentationDuration || 0;\n  mpdAttributes.NOW = NOW;\n  mpdAttributes.clientOffset = clientOffset;\n\n  if (locations.length) {\n    mpdAttributes.locations = locations.map(getContent);\n  }\n\n  var periods = []; // Since toAdaptationSets acts on individual periods right now, the simplest approach to\n  // adding properties that require looking at prior periods is to parse attributes and add\n  // missing ones before toAdaptationSets is called. If more such properties are added, it\n  // may be better to refactor toAdaptationSets.\n\n  periodNodes.forEach(function (node, index) {\n    var attributes = parseAttributes(node); // Use the last modified prior period, as it may contain added information necessary\n    // for this period.\n\n    var priorPeriod = periods[index - 1];\n    attributes.start = getPeriodStart({\n      attributes: attributes,\n      priorPeriodAttributes: priorPeriod ? priorPeriod.attributes : null,\n      mpdType: mpdAttributes.type\n    });\n    periods.push({\n      node: node,\n      attributes: attributes\n    });\n  });\n  return {\n    locations: mpdAttributes.locations,\n    representationInfo: flatten(periods.map(toAdaptationSets(mpdAttributes, mpdBaseUrls)))\n  };\n};\n\nvar stringToMpdXml = function stringToMpdXml(manifestString) {\n  if (manifestString === '') {\n    throw new Error(errors.DASH_EMPTY_MANIFEST);\n  }\n\n  var parser = new DOMParser();\n  var xml;\n  var mpd;\n\n  try {\n    xml = parser.parseFromString(manifestString, 'application/xml');\n    mpd = xml && xml.documentElement.tagName === 'MPD' ? xml.documentElement : null;\n  } catch (e) {// ie 11 throwsw on invalid xml\n  }\n\n  if (!mpd || mpd && mpd.getElementsByTagName('parsererror').length > 0) {\n    throw new Error(errors.DASH_INVALID_XML);\n  }\n\n  return mpd;\n};\n\n/**\n * Parses the manifest for a UTCTiming node, returning the nodes attributes if found\n *\n * @param {string} mpd\n *        XML string of the MPD manifest\n * @return {Object|null}\n *         Attributes of UTCTiming node specified in the manifest. Null if none found\n */\n\nvar parseUTCTimingScheme = function parseUTCTimingScheme(mpd) {\n  var UTCTimingNode = findChildren(mpd, 'UTCTiming')[0];\n\n  if (!UTCTimingNode) {\n    return null;\n  }\n\n  var attributes = parseAttributes(UTCTimingNode);\n\n  switch (attributes.schemeIdUri) {\n    case 'urn:mpeg:dash:utc:http-head:2014':\n    case 'urn:mpeg:dash:utc:http-head:2012':\n      attributes.method = 'HEAD';\n      break;\n\n    case 'urn:mpeg:dash:utc:http-xsdate:2014':\n    case 'urn:mpeg:dash:utc:http-iso:2014':\n    case 'urn:mpeg:dash:utc:http-xsdate:2012':\n    case 'urn:mpeg:dash:utc:http-iso:2012':\n      attributes.method = 'GET';\n      break;\n\n    case 'urn:mpeg:dash:utc:direct:2014':\n    case 'urn:mpeg:dash:utc:direct:2012':\n      attributes.method = 'DIRECT';\n      attributes.value = Date.parse(attributes.value);\n      break;\n\n    case 'urn:mpeg:dash:utc:http-ntp:2014':\n    case 'urn:mpeg:dash:utc:ntp:2014':\n    case 'urn:mpeg:dash:utc:sntp:2014':\n    default:\n      throw new Error(errors.UNSUPPORTED_UTC_TIMING_SCHEME);\n  }\n\n  return attributes;\n};\n\nvar VERSION = version;\n\nvar parse = function parse(manifestString, options) {\n  if (options === void 0) {\n    options = {};\n  }\n\n  var parsedManifestInfo = inheritAttributes(stringToMpdXml(manifestString), options);\n  var playlists = toPlaylists(parsedManifestInfo.representationInfo);\n  return toM3u8(playlists, parsedManifestInfo.locations, options.sidxMapping);\n};\n/**\n * Parses the manifest for a UTCTiming node, returning the nodes attributes if found\n *\n * @param {string} manifestString\n *        XML string of the MPD manifest\n * @return {Object|null}\n *         Attributes of UTCTiming node specified in the manifest. Null if none found\n */\n\n\nvar parseUTCTiming = function parseUTCTiming(manifestString) {\n  return parseUTCTimingScheme(stringToMpdXml(manifestString));\n};\n\nexport { VERSION, addSidxSegmentsToPlaylist, generateSidxKey, inheritAttributes, parse, parseUTCTiming, stringToMpdXml, toM3u8, toPlaylists };\n","import window from 'global/window'; // const log2 = Math.log2 ? Math.log2 : (x) => (Math.log(x) / Math.log(2));\n\nvar repeat = function repeat(str, len) {\n  var acc = '';\n\n  while (len--) {\n    acc += str;\n  }\n\n  return acc;\n}; // count the number of bits it would take to represent a number\n// we used to do this with log2 but BigInt does not support builtin math\n// Math.ceil(log2(x));\n\n\nexport var countBits = function countBits(x) {\n  return x.toString(2).length;\n}; // count the number of whole bytes it would take to represent a number\n\nexport var countBytes = function countBytes(x) {\n  return Math.ceil(countBits(x) / 8);\n};\nexport var padStart = function padStart(b, len, str) {\n  if (str === void 0) {\n    str = ' ';\n  }\n\n  return (repeat(str, len) + b.toString()).slice(-len);\n};\nexport var isTypedArray = function isTypedArray(obj) {\n  return ArrayBuffer.isView(obj);\n};\nexport var toUint8 = function toUint8(bytes) {\n  if (bytes instanceof Uint8Array) {\n    return bytes;\n  }\n\n  if (!Array.isArray(bytes) && !isTypedArray(bytes) && !(bytes instanceof ArrayBuffer)) {\n    // any non-number or NaN leads to empty uint8array\n    // eslint-disable-next-line\n    if (typeof bytes !== 'number' || typeof bytes === 'number' && bytes !== bytes) {\n      bytes = 0;\n    } else {\n      bytes = [bytes];\n    }\n  }\n\n  return new Uint8Array(bytes && bytes.buffer || bytes, bytes && bytes.byteOffset || 0, bytes && bytes.byteLength || 0);\n};\nexport var toHexString = function toHexString(bytes) {\n  bytes = toUint8(bytes);\n  var str = '';\n\n  for (var i = 0; i < bytes.length; i++) {\n    str += padStart(bytes[i].toString(16), 2, '0');\n  }\n\n  return str;\n};\nexport var toBinaryString = function toBinaryString(bytes) {\n  bytes = toUint8(bytes);\n  var str = '';\n\n  for (var i = 0; i < bytes.length; i++) {\n    str += padStart(bytes[i].toString(2), 8, '0');\n  }\n\n  return str;\n};\nvar BigInt = window.BigInt || Number;\nvar BYTE_TABLE = [BigInt('0x1'), BigInt('0x100'), BigInt('0x10000'), BigInt('0x1000000'), BigInt('0x100000000'), BigInt('0x10000000000'), BigInt('0x1000000000000'), BigInt('0x100000000000000'), BigInt('0x10000000000000000')];\nexport var ENDIANNESS = function () {\n  var a = new Uint16Array([0xFFCC]);\n  var b = new Uint8Array(a.buffer, a.byteOffset, a.byteLength);\n\n  if (b[0] === 0xFF) {\n    return 'big';\n  }\n\n  if (b[0] === 0xCC) {\n    return 'little';\n  }\n\n  return 'unknown';\n}();\nexport var IS_BIG_ENDIAN = ENDIANNESS === 'big';\nexport var IS_LITTLE_ENDIAN = ENDIANNESS === 'little';\nexport var bytesToNumber = function bytesToNumber(bytes, _temp) {\n  var _ref = _temp === void 0 ? {} : _temp,\n      _ref$signed = _ref.signed,\n      signed = _ref$signed === void 0 ? false : _ref$signed,\n      _ref$le = _ref.le,\n      le = _ref$le === void 0 ? false : _ref$le;\n\n  bytes = toUint8(bytes);\n  var fn = le ? 'reduce' : 'reduceRight';\n  var obj = bytes[fn] ? bytes[fn] : Array.prototype[fn];\n  var number = obj.call(bytes, function (total, byte, i) {\n    var exponent = le ? i : Math.abs(i + 1 - bytes.length);\n    return total + BigInt(byte) * BYTE_TABLE[exponent];\n  }, BigInt(0));\n\n  if (signed) {\n    var max = BYTE_TABLE[bytes.length] / BigInt(2) - BigInt(1);\n    number = BigInt(number);\n\n    if (number > max) {\n      number -= max;\n      number -= max;\n      number -= BigInt(2);\n    }\n  }\n\n  return Number(number);\n};\nexport var numberToBytes = function numberToBytes(number, _temp2) {\n  var _ref2 = _temp2 === void 0 ? {} : _temp2,\n      _ref2$le = _ref2.le,\n      le = _ref2$le === void 0 ? false : _ref2$le;\n\n  // eslint-disable-next-line\n  if (typeof number !== 'bigint' && typeof number !== 'number' || typeof number === 'number' && number !== number) {\n    number = 0;\n  }\n\n  number = BigInt(number);\n  var byteCount = countBytes(number);\n  var bytes = new Uint8Array(new ArrayBuffer(byteCount));\n\n  for (var i = 0; i < byteCount; i++) {\n    var byteIndex = le ? i : Math.abs(i + 1 - bytes.length);\n    bytes[byteIndex] = Number(number / BYTE_TABLE[i] & BigInt(0xFF));\n\n    if (number < 0) {\n      bytes[byteIndex] = Math.abs(~bytes[byteIndex]);\n      bytes[byteIndex] -= i === 0 ? 1 : 2;\n    }\n  }\n\n  return bytes;\n};\nexport var bytesToString = function bytesToString(bytes) {\n  if (!bytes) {\n    return '';\n  } // TODO: should toUint8 handle cases where we only have 8 bytes\n  // but report more since this is a Uint16+ Array?\n\n\n  bytes = Array.prototype.slice.call(bytes);\n  var string = String.fromCharCode.apply(null, toUint8(bytes));\n\n  try {\n    return decodeURIComponent(escape(string));\n  } catch (e) {// if decodeURIComponent/escape fails, we are dealing with partial\n    // or full non string data. Just return the potentially garbled string.\n  }\n\n  return string;\n};\nexport var stringToBytes = function stringToBytes(string, stringIsBytes) {\n  if (typeof string !== 'string' && string && typeof string.toString === 'function') {\n    string = string.toString();\n  }\n\n  if (typeof string !== 'string') {\n    return new Uint8Array();\n  } // If the string already is bytes, we don't have to do this\n  // otherwise we do this so that we split multi length characters\n  // into individual bytes\n\n\n  if (!stringIsBytes) {\n    string = unescape(encodeURIComponent(string));\n  }\n\n  var view = new Uint8Array(string.length);\n\n  for (var i = 0; i < string.length; i++) {\n    view[i] = string.charCodeAt(i);\n  }\n\n  return view;\n};\nexport var concatTypedArrays = function concatTypedArrays() {\n  for (var _len = arguments.length, buffers = new Array(_len), _key = 0; _key < _len; _key++) {\n    buffers[_key] = arguments[_key];\n  }\n\n  buffers = buffers.filter(function (b) {\n    return b && (b.byteLength || b.length) && typeof b !== 'string';\n  });\n\n  if (buffers.length <= 1) {\n    // for 0 length we will return empty uint8\n    // for 1 length we return the first uint8\n    return toUint8(buffers[0]);\n  }\n\n  var totalLen = buffers.reduce(function (total, buf, i) {\n    return total + (buf.byteLength || buf.length);\n  }, 0);\n  var tempBuffer = new Uint8Array(totalLen);\n  var offset = 0;\n  buffers.forEach(function (buf) {\n    buf = toUint8(buf);\n    tempBuffer.set(buf, offset);\n    offset += buf.byteLength;\n  });\n  return tempBuffer;\n};\n/**\n * Check if the bytes \"b\" are contained within bytes \"a\".\n *\n * @param {Uint8Array|Array} a\n *        Bytes to check in\n *\n * @param {Uint8Array|Array} b\n *        Bytes to check for\n *\n * @param {Object} options\n *        options\n *\n * @param {Array|Uint8Array} [offset=0]\n *        offset to use when looking at bytes in a\n *\n * @param {Array|Uint8Array} [mask=[]]\n *        mask to use on bytes before comparison.\n *\n * @return {boolean}\n *         If all bytes in b are inside of a, taking into account\n *         bit masks.\n */\n\nexport var bytesMatch = function bytesMatch(a, b, _temp3) {\n  var _ref3 = _temp3 === void 0 ? {} : _temp3,\n      _ref3$offset = _ref3.offset,\n      offset = _ref3$offset === void 0 ? 0 : _ref3$offset,\n      _ref3$mask = _ref3.mask,\n      mask = _ref3$mask === void 0 ? [] : _ref3$mask;\n\n  a = toUint8(a);\n  b = toUint8(b); // ie 11 does not support uint8 every\n\n  var fn = b.every ? b.every : Array.prototype.every;\n  return b.length && a.length - offset >= b.length && // ie 11 doesn't support every on uin8\n  fn.call(b, function (bByte, i) {\n    var aByte = mask[i] ? mask[i] & a[offset + i] : a[offset + i];\n    return bByte === aByte;\n  });\n};\nexport var sliceBytes = function sliceBytes(src, start, end) {\n  if (Uint8Array.prototype.slice) {\n    return Uint8Array.prototype.slice.call(src, start, end);\n  }\n\n  return new Uint8Array(Array.prototype.slice.call(src, start, end));\n};\nexport var reverseBytes = function reverseBytes(src) {\n  if (src.reverse) {\n    return src.reverse();\n  }\n\n  return Array.prototype.reverse.call(src);\n};","import { toUint8, bytesMatch } from './byte-helpers.js';\nvar ID3 = toUint8([0x49, 0x44, 0x33]);\nexport var getId3Size = function getId3Size(bytes, offset) {\n  if (offset === void 0) {\n    offset = 0;\n  }\n\n  bytes = toUint8(bytes);\n  var flags = bytes[offset + 5];\n  var returnSize = bytes[offset + 6] << 21 | bytes[offset + 7] << 14 | bytes[offset + 8] << 7 | bytes[offset + 9];\n  var footerPresent = (flags & 16) >> 4;\n\n  if (footerPresent) {\n    return returnSize + 20;\n  }\n\n  return returnSize + 10;\n};\nexport var getId3Offset = function getId3Offset(bytes, offset) {\n  if (offset === void 0) {\n    offset = 0;\n  }\n\n  bytes = toUint8(bytes);\n\n  if (bytes.length - offset < 10 || !bytesMatch(bytes, ID3, {\n    offset: offset\n  })) {\n    return offset;\n  }\n\n  offset += getId3Size(bytes, offset); // recursive check for id3 tags as some files\n  // have multiple ID3 tag sections even though\n  // they should not.\n\n  return getId3Offset(bytes, offset);\n};","export var OPUS_HEAD = new Uint8Array([// O, p, u, s\n0x4f, 0x70, 0x75, 0x73, // H, e, a, d\n0x48, 0x65, 0x61, 0x64]); // https://wiki.xiph.org/OggOpus\n// https://vfrmaniac.fushizen.eu/contents/opus_in_isobmff.html\n// https://opus-codec.org/docs/opusfile_api-0.7/structOpusHead.html\n\nexport var parseOpusHead = function parseOpusHead(bytes) {\n  var view = new DataView(bytes.buffer, bytes.byteOffset, bytes.byteLength);\n  var version = view.getUint8(0); // version 0, from mp4, does not use littleEndian.\n\n  var littleEndian = version !== 0;\n  var config = {\n    version: version,\n    channels: view.getUint8(1),\n    preSkip: view.getUint16(2, littleEndian),\n    sampleRate: view.getUint32(4, littleEndian),\n    outputGain: view.getUint16(8, littleEndian),\n    channelMappingFamily: view.getUint8(10)\n  };\n\n  if (config.channelMappingFamily > 0 && bytes.length > 10) {\n    config.streamCount = view.getUint8(11);\n    config.twoChannelStreamCount = view.getUint8(12);\n    config.channelMapping = [];\n\n    for (var c = 0; c < config.channels; c++) {\n      config.channelMapping.push(view.getUint8(13 + c));\n    }\n  }\n\n  return config;\n};\nexport var setOpusHead = function setOpusHead(config) {\n  var size = config.channelMappingFamily <= 0 ? 11 : 12 + config.channels;\n  var view = new DataView(new ArrayBuffer(size));\n  var littleEndian = config.version !== 0;\n  view.setUint8(0, config.version);\n  view.setUint8(1, config.channels);\n  view.setUint16(2, config.preSkip, littleEndian);\n  view.setUint32(4, config.sampleRate, littleEndian);\n  view.setUint16(8, config.outputGain, littleEndian);\n  view.setUint8(10, config.channelMappingFamily);\n\n  if (config.channelMappingFamily > 0) {\n    view.setUint8(11, config.streamCount);\n    config.channelMapping.foreach(function (cm, i) {\n      view.setUint8(12 + i, cm);\n    });\n  }\n\n  return new Uint8Array(view.buffer);\n};","import { toUint8, bytesToNumber, bytesMatch, bytesToString, numberToBytes, padStart } from './byte-helpers';\nimport { getAvcCodec, getHvcCodec, getAv1Codec } from './codec-helpers.js'; // relevant specs for this parser:\n// https://matroska-org.github.io/libebml/specs.html\n// https://www.matroska.org/technical/elements.html\n// https://www.webmproject.org/docs/container/\n\nexport var EBML_TAGS = {\n  EBML: toUint8([0x1A, 0x45, 0xDF, 0xA3]),\n  DocType: toUint8([0x42, 0x82]),\n  Segment: toUint8([0x18, 0x53, 0x80, 0x67]),\n  SegmentInfo: toUint8([0x15, 0x49, 0xA9, 0x66]),\n  Tracks: toUint8([0x16, 0x54, 0xAE, 0x6B]),\n  Track: toUint8([0xAE]),\n  TrackNumber: toUint8([0xd7]),\n  DefaultDuration: toUint8([0x23, 0xe3, 0x83]),\n  TrackEntry: toUint8([0xAE]),\n  TrackType: toUint8([0x83]),\n  FlagDefault: toUint8([0x88]),\n  CodecID: toUint8([0x86]),\n  CodecPrivate: toUint8([0x63, 0xA2]),\n  VideoTrack: toUint8([0xe0]),\n  AudioTrack: toUint8([0xe1]),\n  // Not used yet, but will be used for live webm/mkv\n  // see https://www.matroska.org/technical/basics.html#block-structure\n  // see https://www.matroska.org/technical/basics.html#simpleblock-structure\n  Cluster: toUint8([0x1F, 0x43, 0xB6, 0x75]),\n  Timestamp: toUint8([0xE7]),\n  TimestampScale: toUint8([0x2A, 0xD7, 0xB1]),\n  BlockGroup: toUint8([0xA0]),\n  BlockDuration: toUint8([0x9B]),\n  Block: toUint8([0xA1]),\n  SimpleBlock: toUint8([0xA3])\n};\n/**\n * This is a simple table to determine the length\n * of things in ebml. The length is one based (starts at 1,\n * rather than zero) and for every zero bit before a one bit\n * we add one to length. We also need this table because in some\n * case we have to xor all the length bits from another value.\n */\n\nvar LENGTH_TABLE = [128, 64, 32, 16, 8, 4, 2, 1];\n\nvar getLength = function getLength(byte) {\n  var len = 1;\n\n  for (var i = 0; i < LENGTH_TABLE.length; i++) {\n    if (byte & LENGTH_TABLE[i]) {\n      break;\n    }\n\n    len++;\n  }\n\n  return len;\n}; // length in ebml is stored in the first 4 to 8 bits\n// of the first byte. 4 for the id length and 8 for the\n// data size length. Length is measured by converting the number to binary\n// then 1 + the number of zeros before a 1 is encountered starting\n// from the left.\n\n\nvar getvint = function getvint(bytes, offset, removeLength, signed) {\n  if (removeLength === void 0) {\n    removeLength = true;\n  }\n\n  if (signed === void 0) {\n    signed = false;\n  }\n\n  var length = getLength(bytes[offset]);\n  var valueBytes = bytes.subarray(offset, offset + length); // NOTE that we do **not** subarray here because we need to copy these bytes\n  // as they will be modified below to remove the dataSizeLen bits and we do not\n  // want to modify the original data. normally we could just call slice on\n  // uint8array but ie 11 does not support that...\n\n  if (removeLength) {\n    valueBytes = Array.prototype.slice.call(bytes, offset, offset + length);\n    valueBytes[0] ^= LENGTH_TABLE[length - 1];\n  }\n\n  return {\n    length: length,\n    value: bytesToNumber(valueBytes, {\n      signed: signed\n    }),\n    bytes: valueBytes\n  };\n};\n\nvar normalizePath = function normalizePath(path) {\n  if (typeof path === 'string') {\n    return path.match(/.{1,2}/g).map(function (p) {\n      return normalizePath(p);\n    });\n  }\n\n  if (typeof path === 'number') {\n    return numberToBytes(path);\n  }\n\n  return path;\n};\n\nvar normalizePaths = function normalizePaths(paths) {\n  if (!Array.isArray(paths)) {\n    return [normalizePath(paths)];\n  }\n\n  return paths.map(function (p) {\n    return normalizePath(p);\n  });\n};\n\nvar getInfinityDataSize = function getInfinityDataSize(id, bytes, offset) {\n  if (offset >= bytes.length) {\n    return bytes.length;\n  }\n\n  var innerid = getvint(bytes, offset, false);\n\n  if (bytesMatch(id.bytes, innerid.bytes)) {\n    return offset;\n  }\n\n  var dataHeader = getvint(bytes, offset + innerid.length);\n  return getInfinityDataSize(id, bytes, offset + dataHeader.length + dataHeader.value + innerid.length);\n};\n/**\n * Notes on the EBLM format.\n *\n * EBLM uses \"vints\" tags. Every vint tag contains\n * two parts\n *\n * 1. The length from the first byte. You get this by\n *    converting the byte to binary and counting the zeros\n *    before a 1. Then you add 1 to that. Examples\n *    00011111 = length 4 because there are 3 zeros before a 1.\n *    00100000 = length 3 because there are 2 zeros before a 1.\n *    00000011 = length 7 because there are 6 zeros before a 1.\n *\n * 2. The bits used for length are removed from the first byte\n *    Then all the bytes are merged into a value. NOTE: this\n *    is not the case for id ebml tags as there id includes\n *    length bits.\n *\n */\n\n\nexport var findEbml = function findEbml(bytes, paths) {\n  paths = normalizePaths(paths);\n  bytes = toUint8(bytes);\n  var results = [];\n\n  if (!paths.length) {\n    return results;\n  }\n\n  var i = 0;\n\n  while (i < bytes.length) {\n    var id = getvint(bytes, i, false);\n    var dataHeader = getvint(bytes, i + id.length);\n    var dataStart = i + id.length + dataHeader.length; // dataSize is unknown or this is a live stream\n\n    if (dataHeader.value === 0x7f) {\n      dataHeader.value = getInfinityDataSize(id, bytes, dataStart);\n\n      if (dataHeader.value !== bytes.length) {\n        dataHeader.value -= dataStart;\n      }\n    }\n\n    var dataEnd = dataStart + dataHeader.value > bytes.length ? bytes.length : dataStart + dataHeader.value;\n    var data = bytes.subarray(dataStart, dataEnd);\n\n    if (bytesMatch(paths[0], id.bytes)) {\n      if (paths.length === 1) {\n        // this is the end of the paths and we've found the tag we were\n        // looking for\n        results.push(data);\n      } else {\n        // recursively search for the next tag inside of the data\n        // of this one\n        results = results.concat(findEbml(data, paths.slice(1)));\n      }\n    }\n\n    var totalLength = id.length + dataHeader.length + data.length; // move past this tag entirely, we are not looking for it\n\n    i += totalLength;\n  }\n\n  return results;\n}; // see https://www.matroska.org/technical/basics.html#block-structure\n\nexport var decodeBlock = function decodeBlock(block, type, timestampScale, clusterTimestamp) {\n  var duration;\n\n  if (type === 'group') {\n    duration = findEbml(block, [EBML_TAGS.BlockDuration])[0];\n\n    if (duration) {\n      duration = bytesToNumber(duration);\n      duration = 1 / timestampScale * duration * timestampScale / 1000;\n    }\n\n    block = findEbml(block, [EBML_TAGS.Block])[0];\n    type = 'block'; // treat data as a block after this point\n  }\n\n  var dv = new DataView(block.buffer, block.byteOffset, block.byteLength);\n  var trackNumber = getvint(block, 0);\n  var timestamp = dv.getInt16(trackNumber.length, false);\n  var flags = block[trackNumber.length + 2];\n  var data = block.subarray(trackNumber.length + 3); // pts/dts in seconds\n\n  var ptsdts = 1 / timestampScale * (clusterTimestamp + timestamp) * timestampScale / 1000; // return the frame\n\n  var parsed = {\n    duration: duration,\n    trackNumber: trackNumber.value,\n    keyframe: type === 'simple' && flags >> 7 === 1,\n    invisible: (flags & 0x08) >> 3 === 1,\n    lacing: (flags & 0x06) >> 1,\n    discardable: type === 'simple' && (flags & 0x01) === 1,\n    frames: [],\n    pts: ptsdts,\n    dts: ptsdts,\n    timestamp: timestamp\n  };\n\n  if (!parsed.lacing) {\n    parsed.frames.push(data);\n    return parsed;\n  }\n\n  var numberOfFrames = data[0] + 1;\n  var frameSizes = [];\n  var offset = 1; // Fixed\n\n  if (parsed.lacing === 2) {\n    var sizeOfFrame = (data.length - offset) / numberOfFrames;\n\n    for (var i = 0; i < numberOfFrames; i++) {\n      frameSizes.push(sizeOfFrame);\n    }\n  } // xiph\n\n\n  if (parsed.lacing === 1) {\n    for (var _i = 0; _i < numberOfFrames - 1; _i++) {\n      var size = 0;\n\n      do {\n        size += data[offset];\n        offset++;\n      } while (data[offset - 1] === 0xFF);\n\n      frameSizes.push(size);\n    }\n  } // ebml\n\n\n  if (parsed.lacing === 3) {\n    // first vint is unsinged\n    // after that vints are singed and\n    // based on a compounding size\n    var _size = 0;\n\n    for (var _i2 = 0; _i2 < numberOfFrames - 1; _i2++) {\n      var vint = _i2 === 0 ? getvint(data, offset) : getvint(data, offset, true, true);\n      _size += vint.value;\n      frameSizes.push(_size);\n      offset += vint.length;\n    }\n  }\n\n  frameSizes.forEach(function (size) {\n    parsed.frames.push(data.subarray(offset, offset + size));\n    offset += size;\n  });\n  return parsed;\n}; // VP9 Codec Feature Metadata (CodecPrivate)\n// https://www.webmproject.org/docs/container/\n\nvar parseVp9Private = function parseVp9Private(bytes) {\n  var i = 0;\n  var params = {};\n\n  while (i < bytes.length) {\n    var id = bytes[i] & 0x7f;\n    var len = bytes[i + 1];\n    var val = void 0;\n\n    if (len === 1) {\n      val = bytes[i + 2];\n    } else {\n      val = bytes.subarray(i + 2, i + 2 + len);\n    }\n\n    if (id === 1) {\n      params.profile = val;\n    } else if (id === 2) {\n      params.level = val;\n    } else if (id === 3) {\n      params.bitDepth = val;\n    } else if (id === 4) {\n      params.chromaSubsampling = val;\n    } else {\n      params[id] = val;\n    }\n\n    i += 2 + len;\n  }\n\n  return params;\n};\n\nexport var parseTracks = function parseTracks(bytes) {\n  bytes = toUint8(bytes);\n  var decodedTracks = [];\n  var tracks = findEbml(bytes, [EBML_TAGS.Segment, EBML_TAGS.Tracks, EBML_TAGS.Track]);\n\n  if (!tracks.length) {\n    tracks = findEbml(bytes, [EBML_TAGS.Tracks, EBML_TAGS.Track]);\n  }\n\n  if (!tracks.length) {\n    tracks = findEbml(bytes, [EBML_TAGS.Track]);\n  }\n\n  if (!tracks.length) {\n    return decodedTracks;\n  }\n\n  tracks.forEach(function (track) {\n    var trackType = findEbml(track, EBML_TAGS.TrackType)[0];\n\n    if (!trackType || !trackType.length) {\n      return;\n    } // 1 is video, 2 is audio, 17 is subtitle\n    // other values are unimportant in this context\n\n\n    if (trackType[0] === 1) {\n      trackType = 'video';\n    } else if (trackType[0] === 2) {\n      trackType = 'audio';\n    } else if (trackType[0] === 17) {\n      trackType = 'subtitle';\n    } else {\n      return;\n    } // todo parse language\n\n\n    var decodedTrack = {\n      rawCodec: bytesToString(findEbml(track, [EBML_TAGS.CodecID])[0]),\n      type: trackType,\n      codecPrivate: findEbml(track, [EBML_TAGS.CodecPrivate])[0],\n      number: bytesToNumber(findEbml(track, [EBML_TAGS.TrackNumber])[0]),\n      defaultDuration: bytesToNumber(findEbml(track, [EBML_TAGS.DefaultDuration])[0]),\n      default: findEbml(track, [EBML_TAGS.FlagDefault])[0],\n      rawData: track\n    };\n    var codec = '';\n\n    if (/V_MPEG4\\/ISO\\/AVC/.test(decodedTrack.rawCodec)) {\n      codec = \"avc1.\" + getAvcCodec(decodedTrack.codecPrivate);\n    } else if (/V_MPEGH\\/ISO\\/HEVC/.test(decodedTrack.rawCodec)) {\n      codec = \"hev1.\" + getHvcCodec(decodedTrack.codecPrivate);\n    } else if (/V_MPEG4\\/ISO\\/ASP/.test(decodedTrack.rawCodec)) {\n      if (decodedTrack.codecPrivate) {\n        codec = 'mp4v.20.' + decodedTrack.codecPrivate[4].toString();\n      } else {\n        codec = 'mp4v.20.9';\n      }\n    } else if (/^V_THEORA/.test(decodedTrack.rawCodec)) {\n      codec = 'theora';\n    } else if (/^V_VP8/.test(decodedTrack.rawCodec)) {\n      codec = 'vp8';\n    } else if (/^V_VP9/.test(decodedTrack.rawCodec)) {\n      if (decodedTrack.codecPrivate) {\n        var _parseVp9Private = parseVp9Private(decodedTrack.codecPrivate),\n            profile = _parseVp9Private.profile,\n            level = _parseVp9Private.level,\n            bitDepth = _parseVp9Private.bitDepth,\n            chromaSubsampling = _parseVp9Private.chromaSubsampling;\n\n        codec = 'vp09.';\n        codec += padStart(profile, 2, '0') + \".\";\n        codec += padStart(level, 2, '0') + \".\";\n        codec += padStart(bitDepth, 2, '0') + \".\";\n        codec += \"\" + padStart(chromaSubsampling, 2, '0'); // Video -> Colour -> Ebml name\n\n        var matrixCoefficients = findEbml(track, [0xE0, [0x55, 0xB0], [0x55, 0xB1]])[0] || [];\n        var videoFullRangeFlag = findEbml(track, [0xE0, [0x55, 0xB0], [0x55, 0xB9]])[0] || [];\n        var transferCharacteristics = findEbml(track, [0xE0, [0x55, 0xB0], [0x55, 0xBA]])[0] || [];\n        var colourPrimaries = findEbml(track, [0xE0, [0x55, 0xB0], [0x55, 0xBB]])[0] || []; // if we find any optional codec parameter specify them all.\n\n        if (matrixCoefficients.length || videoFullRangeFlag.length || transferCharacteristics.length || colourPrimaries.length) {\n          codec += \".\" + padStart(colourPrimaries[0], 2, '0');\n          codec += \".\" + padStart(transferCharacteristics[0], 2, '0');\n          codec += \".\" + padStart(matrixCoefficients[0], 2, '0');\n          codec += \".\" + padStart(videoFullRangeFlag[0], 2, '0');\n        }\n      } else {\n        codec = 'vp9';\n      }\n    } else if (/^V_AV1/.test(decodedTrack.rawCodec)) {\n      codec = \"av01.\" + getAv1Codec(decodedTrack.codecPrivate);\n    } else if (/A_ALAC/.test(decodedTrack.rawCodec)) {\n      codec = 'alac';\n    } else if (/A_MPEG\\/L2/.test(decodedTrack.rawCodec)) {\n      codec = 'mp2';\n    } else if (/A_MPEG\\/L3/.test(decodedTrack.rawCodec)) {\n      codec = 'mp3';\n    } else if (/^A_AAC/.test(decodedTrack.rawCodec)) {\n      if (decodedTrack.codecPrivate) {\n        codec = 'mp4a.40.' + (decodedTrack.codecPrivate[0] >>> 3).toString();\n      } else {\n        codec = 'mp4a.40.2';\n      }\n    } else if (/^A_AC3/.test(decodedTrack.rawCodec)) {\n      codec = 'ac-3';\n    } else if (/^A_PCM/.test(decodedTrack.rawCodec)) {\n      codec = 'pcm';\n    } else if (/^A_MS\\/ACM/.test(decodedTrack.rawCodec)) {\n      codec = 'speex';\n    } else if (/^A_EAC3/.test(decodedTrack.rawCodec)) {\n      codec = 'ec-3';\n    } else if (/^A_VORBIS/.test(decodedTrack.rawCodec)) {\n      codec = 'vorbis';\n    } else if (/^A_FLAC/.test(decodedTrack.rawCodec)) {\n      codec = 'flac';\n    } else if (/^A_OPUS/.test(decodedTrack.rawCodec)) {\n      codec = 'opus';\n    }\n\n    decodedTrack.codec = codec;\n    decodedTracks.push(decodedTrack);\n  });\n  return decodedTracks.sort(function (a, b) {\n    return a.number - b.number;\n  });\n};\nexport var parseData = function parseData(data, tracks) {\n  var allBlocks = [];\n  var segment = findEbml(data, [EBML_TAGS.Segment])[0];\n  var timestampScale = findEbml(segment, [EBML_TAGS.SegmentInfo, EBML_TAGS.TimestampScale])[0]; // in nanoseconds, defaults to 1ms\n\n  if (timestampScale && timestampScale.length) {\n    timestampScale = bytesToNumber(timestampScale);\n  } else {\n    timestampScale = 1000000;\n  }\n\n  var clusters = findEbml(segment, [EBML_TAGS.Cluster]);\n\n  if (!tracks) {\n    tracks = parseTracks(segment);\n  }\n\n  clusters.forEach(function (cluster, ci) {\n    var simpleBlocks = findEbml(cluster, [EBML_TAGS.SimpleBlock]).map(function (b) {\n      return {\n        type: 'simple',\n        data: b\n      };\n    });\n    var blockGroups = findEbml(cluster, [EBML_TAGS.BlockGroup]).map(function (b) {\n      return {\n        type: 'group',\n        data: b\n      };\n    });\n    var timestamp = findEbml(cluster, [EBML_TAGS.Timestamp])[0] || 0;\n\n    if (timestamp && timestamp.length) {\n      timestamp = bytesToNumber(timestamp);\n    } // get all blocks then sort them into the correct order\n\n\n    var blocks = simpleBlocks.concat(blockGroups).sort(function (a, b) {\n      return a.data.byteOffset - b.data.byteOffset;\n    });\n    blocks.forEach(function (block, bi) {\n      var decoded = decodeBlock(block.data, block.type, timestampScale, timestamp);\n      allBlocks.push(decoded);\n    });\n  });\n  return {\n    tracks: tracks,\n    blocks: allBlocks\n  };\n};","import { bytesMatch, toUint8 } from './byte-helpers.js';\nexport var NAL_TYPE_ONE = toUint8([0x00, 0x00, 0x00, 0x01]);\nexport var NAL_TYPE_TWO = toUint8([0x00, 0x00, 0x01]);\nexport var EMULATION_PREVENTION = toUint8([0x00, 0x00, 0x03]);\n/**\n * Expunge any \"Emulation Prevention\" bytes from a \"Raw Byte\n * Sequence Payload\"\n *\n * @param data {Uint8Array} the bytes of a RBSP from a NAL\n * unit\n * @return {Uint8Array} the RBSP without any Emulation\n * Prevention Bytes\n */\n\nexport var discardEmulationPreventionBytes = function discardEmulationPreventionBytes(bytes) {\n  var positions = [];\n  var i = 1; // Find all `Emulation Prevention Bytes`\n\n  while (i < bytes.length - 2) {\n    if (bytesMatch(bytes.subarray(i, i + 3), EMULATION_PREVENTION)) {\n      positions.push(i + 2);\n      i++;\n    }\n\n    i++;\n  } // If no Emulation Prevention Bytes were found just return the original\n  // array\n\n\n  if (positions.length === 0) {\n    return bytes;\n  } // Create a new array to hold the NAL unit data\n\n\n  var newLength = bytes.length - positions.length;\n  var newData = new Uint8Array(newLength);\n  var sourceIndex = 0;\n\n  for (i = 0; i < newLength; sourceIndex++, i++) {\n    if (sourceIndex === positions[0]) {\n      // Skip this byte\n      sourceIndex++; // Remove this position index\n\n      positions.shift();\n    }\n\n    newData[i] = bytes[sourceIndex];\n  }\n\n  return newData;\n};\nexport var findNal = function findNal(bytes, dataType, types, nalLimit) {\n  if (nalLimit === void 0) {\n    nalLimit = Infinity;\n  }\n\n  bytes = toUint8(bytes);\n  types = [].concat(types);\n  var i = 0;\n  var nalStart;\n  var nalsFound = 0; // keep searching until:\n  // we reach the end of bytes\n  // we reach the maximum number of nals they want to seach\n  // NOTE: that we disregard nalLimit when we have found the start\n  // of the nal we want so that we can find the end of the nal we want.\n\n  while (i < bytes.length && (nalsFound < nalLimit || nalStart)) {\n    var nalOffset = void 0;\n\n    if (bytesMatch(bytes.subarray(i), NAL_TYPE_ONE)) {\n      nalOffset = 4;\n    } else if (bytesMatch(bytes.subarray(i), NAL_TYPE_TWO)) {\n      nalOffset = 3;\n    } // we are unsynced,\n    // find the next nal unit\n\n\n    if (!nalOffset) {\n      i++;\n      continue;\n    }\n\n    nalsFound++;\n\n    if (nalStart) {\n      return discardEmulationPreventionBytes(bytes.subarray(nalStart, i));\n    }\n\n    var nalType = void 0;\n\n    if (dataType === 'h264') {\n      nalType = bytes[i + nalOffset] & 0x1f;\n    } else if (dataType === 'h265') {\n      nalType = bytes[i + nalOffset] >> 1 & 0x3f;\n    }\n\n    if (types.indexOf(nalType) !== -1) {\n      nalStart = i + nalOffset;\n    } // nal header is 1 length for h264, and 2 for h265\n\n\n    i += nalOffset + (dataType === 'h264' ? 1 : 2);\n  }\n\n  return bytes.subarray(0, 0);\n};\nexport var findH264Nal = function findH264Nal(bytes, type, nalLimit) {\n  return findNal(bytes, 'h264', type, nalLimit);\n};\nexport var findH265Nal = function findH265Nal(bytes, type, nalLimit) {\n  return findNal(bytes, 'h265', type, nalLimit);\n};","import { toUint8, bytesMatch } from './byte-helpers.js';\nimport { findBox } from './mp4-helpers.js';\nimport { findEbml, EBML_TAGS } from './ebml-helpers.js';\nimport { getId3Offset } from './id3-helpers.js';\nimport { findH264Nal, findH265Nal } from './nal-helpers.js';\nvar CONSTANTS = {\n  // \"webm\" string literal in hex\n  'webm': toUint8([0x77, 0x65, 0x62, 0x6d]),\n  // \"matroska\" string literal in hex\n  'matroska': toUint8([0x6d, 0x61, 0x74, 0x72, 0x6f, 0x73, 0x6b, 0x61]),\n  // \"fLaC\" string literal in hex\n  'flac': toUint8([0x66, 0x4c, 0x61, 0x43]),\n  // \"OggS\" string literal in hex\n  'ogg': toUint8([0x4f, 0x67, 0x67, 0x53]),\n  // ac-3 sync byte, also works for ec-3 as that is simply a codec\n  // of ac-3\n  'ac3': toUint8([0x0b, 0x77]),\n  // \"RIFF\" string literal in hex used for wav and avi\n  'riff': toUint8([0x52, 0x49, 0x46, 0x46]),\n  // \"AVI\" string literal in hex\n  'avi': toUint8([0x41, 0x56, 0x49]),\n  // \"WAVE\" string literal in hex\n  'wav': toUint8([0x57, 0x41, 0x56, 0x45]),\n  // \"ftyp3g\" string literal in hex\n  '3gp': toUint8([0x66, 0x74, 0x79, 0x70, 0x33, 0x67]),\n  // \"ftyp\" string literal in hex\n  'mp4': toUint8([0x66, 0x74, 0x79, 0x70]),\n  // \"styp\" string literal in hex\n  'fmp4': toUint8([0x73, 0x74, 0x79, 0x70]),\n  // \"ftypqt\" string literal in hex\n  'mov': toUint8([0x66, 0x74, 0x79, 0x70, 0x71, 0x74]),\n  // moov string literal in hex\n  'moov': toUint8([0x6D, 0x6F, 0x6F, 0x76]),\n  // moof string literal in hex\n  'moof': toUint8([0x6D, 0x6F, 0x6F, 0x66])\n};\nvar _isLikely = {\n  aac: function aac(bytes) {\n    var offset = getId3Offset(bytes);\n    return bytesMatch(bytes, [0xFF, 0x10], {\n      offset: offset,\n      mask: [0xFF, 0x16]\n    });\n  },\n  mp3: function mp3(bytes) {\n    var offset = getId3Offset(bytes);\n    return bytesMatch(bytes, [0xFF, 0x02], {\n      offset: offset,\n      mask: [0xFF, 0x06]\n    });\n  },\n  webm: function webm(bytes) {\n    var docType = findEbml(bytes, [EBML_TAGS.EBML, EBML_TAGS.DocType])[0]; // check if DocType EBML tag is webm\n\n    return bytesMatch(docType, CONSTANTS.webm);\n  },\n  mkv: function mkv(bytes) {\n    var docType = findEbml(bytes, [EBML_TAGS.EBML, EBML_TAGS.DocType])[0]; // check if DocType EBML tag is matroska\n\n    return bytesMatch(docType, CONSTANTS.matroska);\n  },\n  mp4: function mp4(bytes) {\n    // if this file is another base media file format, it is not mp4\n    if (_isLikely['3gp'](bytes) || _isLikely.mov(bytes)) {\n      return false;\n    } // if this file starts with a ftyp or styp box its mp4\n\n\n    if (bytesMatch(bytes, CONSTANTS.mp4, {\n      offset: 4\n    }) || bytesMatch(bytes, CONSTANTS.fmp4, {\n      offset: 4\n    })) {\n      return true;\n    } // if this file starts with a moof/moov box its mp4\n\n\n    if (bytesMatch(bytes, CONSTANTS.moof, {\n      offset: 4\n    }) || bytesMatch(bytes, CONSTANTS.moov, {\n      offset: 4\n    })) {\n      return true;\n    }\n  },\n  mov: function mov(bytes) {\n    return bytesMatch(bytes, CONSTANTS.mov, {\n      offset: 4\n    });\n  },\n  '3gp': function gp(bytes) {\n    return bytesMatch(bytes, CONSTANTS['3gp'], {\n      offset: 4\n    });\n  },\n  ac3: function ac3(bytes) {\n    var offset = getId3Offset(bytes);\n    return bytesMatch(bytes, CONSTANTS.ac3, {\n      offset: offset\n    });\n  },\n  ts: function ts(bytes) {\n    if (bytes.length < 189 && bytes.length >= 1) {\n      return bytes[0] === 0x47;\n    }\n\n    var i = 0; // check the first 376 bytes for two matching sync bytes\n\n    while (i + 188 < bytes.length && i < 188) {\n      if (bytes[i] === 0x47 && bytes[i + 188] === 0x47) {\n        return true;\n      }\n\n      i += 1;\n    }\n\n    return false;\n  },\n  flac: function flac(bytes) {\n    var offset = getId3Offset(bytes);\n    return bytesMatch(bytes, CONSTANTS.flac, {\n      offset: offset\n    });\n  },\n  ogg: function ogg(bytes) {\n    return bytesMatch(bytes, CONSTANTS.ogg);\n  },\n  avi: function avi(bytes) {\n    return bytesMatch(bytes, CONSTANTS.riff) && bytesMatch(bytes, CONSTANTS.avi, {\n      offset: 8\n    });\n  },\n  wav: function wav(bytes) {\n    return bytesMatch(bytes, CONSTANTS.riff) && bytesMatch(bytes, CONSTANTS.wav, {\n      offset: 8\n    });\n  },\n  'h264': function h264(bytes) {\n    // find seq_parameter_set_rbsp\n    return findH264Nal(bytes, 7, 3).length;\n  },\n  'h265': function h265(bytes) {\n    // find video_parameter_set_rbsp or seq_parameter_set_rbsp\n    return findH265Nal(bytes, [32, 33], 3).length;\n  }\n}; // get all the isLikely functions\n// but make sure 'ts' is above h264 and h265\n// but below everything else as it is the least specific\n\nvar isLikelyTypes = Object.keys(_isLikely) // remove ts, h264, h265\n.filter(function (t) {\n  return t !== 'ts' && t !== 'h264' && t !== 'h265';\n}) // add it back to the bottom\n.concat(['ts', 'h264', 'h265']); // make sure we are dealing with uint8 data.\n\nisLikelyTypes.forEach(function (type) {\n  var isLikelyFn = _isLikely[type];\n\n  _isLikely[type] = function (bytes) {\n    return isLikelyFn(toUint8(bytes));\n  };\n}); // export after wrapping\n\nexport var isLikely = _isLikely; // A useful list of file signatures can be found here\n// https://en.wikipedia.org/wiki/List_of_file_signatures\n\nexport var detectContainerForBytes = function detectContainerForBytes(bytes) {\n  bytes = toUint8(bytes);\n\n  for (var i = 0; i < isLikelyTypes.length; i++) {\n    var type = isLikelyTypes[i];\n\n    if (isLikely[type](bytes)) {\n      return type;\n    }\n  }\n\n  return '';\n}; // fmp4 is not a container\n\nexport var isLikelyFmp4MediaSegment = function isLikelyFmp4MediaSegment(bytes) {\n  return findBox(bytes, ['moof']).length > 0;\n};","/**\n * @license\n * Video.js 7.15.4 <http://videojs.com/>\n * Copyright Brightcove, Inc. <https://www.brightcove.com/>\n * Available under Apache License Version 2.0\n * <https://github.com/videojs/video.js/blob/main/LICENSE>\n *\n * Includes vtt.js <https://github.com/mozilla/vtt.js>\n * Available under Apache License Version 2.0\n * <https://github.com/mozilla/vtt.js/blob/main/LICENSE>\n */\n\nimport window from 'global/window';\nimport document from 'global/document';\nimport _extends from '@babel/runtime/helpers/extends';\nimport _assertThisInitialized from '@babel/runtime/helpers/assertThisInitialized';\nimport _inheritsLoose from '@babel/runtime/helpers/inheritsLoose';\nimport safeParseTuple from 'safe-json-parse/tuple';\nimport keycode from 'keycode';\nimport XHR from '@videojs/xhr';\nimport vtt from 'videojs-vtt.js';\nimport _construct from '@babel/runtime/helpers/construct';\nimport _inherits from '@babel/runtime/helpers/inherits';\nimport _resolveUrl from '@videojs/vhs-utils/es/resolve-url.js';\nimport { Parser } from 'm3u8-parser';\nimport { browserSupportsCodec, DEFAULT_VIDEO_CODEC, DEFAULT_AUDIO_CODEC, muxerSupportsCodec, parseCodecs, translateLegacyCodec, codecsFromDefault, getMimeForCodec, isAudioCodec } from '@videojs/vhs-utils/es/codecs.js';\nimport { simpleTypeFromSourceType } from '@videojs/vhs-utils/es/media-types.js';\nimport { generateSidxKey, parseUTCTiming, parse, addSidxSegmentsToPlaylist } from 'mpd-parser';\nimport parseSidx from 'mux.js/lib/tools/parse-sidx';\nimport { getId3Offset } from '@videojs/vhs-utils/es/id3-helpers';\nimport { detectContainerForBytes, isLikelyFmp4MediaSegment } from '@videojs/vhs-utils/es/containers';\nimport { concatTypedArrays, stringToBytes, toUint8 } from '@videojs/vhs-utils/es/byte-helpers';\nimport { ONE_SECOND_IN_TS } from 'mux.js/lib/utils/clock';\n\nvar version$5 = \"7.15.4\";\n\n/**\n * An Object that contains lifecycle hooks as keys which point to an array\n * of functions that are run when a lifecycle is triggered\n *\n * @private\n */\nvar hooks_ = {};\n/**\n * Get a list of hooks for a specific lifecycle\n *\n * @param  {string} type\n *         the lifecyle to get hooks from\n *\n * @param  {Function|Function[]} [fn]\n *         Optionally add a hook (or hooks) to the lifecycle that your are getting.\n *\n * @return {Array}\n *         an array of hooks, or an empty array if there are none.\n */\n\nvar hooks = function hooks(type, fn) {\n  hooks_[type] = hooks_[type] || [];\n\n  if (fn) {\n    hooks_[type] = hooks_[type].concat(fn);\n  }\n\n  return hooks_[type];\n};\n/**\n * Add a function hook to a specific videojs lifecycle.\n *\n * @param {string} type\n *        the lifecycle to hook the function to.\n *\n * @param {Function|Function[]}\n *        The function or array of functions to attach.\n */\n\n\nvar hook = function hook(type, fn) {\n  hooks(type, fn);\n};\n/**\n * Remove a hook from a specific videojs lifecycle.\n *\n * @param  {string} type\n *         the lifecycle that the function hooked to\n *\n * @param  {Function} fn\n *         The hooked function to remove\n *\n * @return {boolean}\n *         The function that was removed or undef\n */\n\n\nvar removeHook = function removeHook(type, fn) {\n  var index = hooks(type).indexOf(fn);\n\n  if (index <= -1) {\n    return false;\n  }\n\n  hooks_[type] = hooks_[type].slice();\n  hooks_[type].splice(index, 1);\n  return true;\n};\n/**\n * Add a function hook that will only run once to a specific videojs lifecycle.\n *\n * @param {string} type\n *        the lifecycle to hook the function to.\n *\n * @param {Function|Function[]}\n *        The function or array of functions to attach.\n */\n\n\nvar hookOnce = function hookOnce(type, fn) {\n  hooks(type, [].concat(fn).map(function (original) {\n    var wrapper = function wrapper() {\n      removeHook(type, wrapper);\n      return original.apply(void 0, arguments);\n    };\n\n    return wrapper;\n  }));\n};\n\n/**\n * @file fullscreen-api.js\n * @module fullscreen-api\n * @private\n */\n/**\n * Store the browser-specific methods for the fullscreen API.\n *\n * @type {Object}\n * @see [Specification]{@link https://fullscreen.spec.whatwg.org}\n * @see [Map Approach From Screenfull.js]{@link https://github.com/sindresorhus/screenfull.js}\n */\n\nvar FullscreenApi = {\n  prefixed: true\n}; // browser API methods\n\nvar apiMap = [['requestFullscreen', 'exitFullscreen', 'fullscreenElement', 'fullscreenEnabled', 'fullscreenchange', 'fullscreenerror', 'fullscreen'], // WebKit\n['webkitRequestFullscreen', 'webkitExitFullscreen', 'webkitFullscreenElement', 'webkitFullscreenEnabled', 'webkitfullscreenchange', 'webkitfullscreenerror', '-webkit-full-screen'], // Mozilla\n['mozRequestFullScreen', 'mozCancelFullScreen', 'mozFullScreenElement', 'mozFullScreenEnabled', 'mozfullscreenchange', 'mozfullscreenerror', '-moz-full-screen'], // Microsoft\n['msRequestFullscreen', 'msExitFullscreen', 'msFullscreenElement', 'msFullscreenEnabled', 'MSFullscreenChange', 'MSFullscreenError', '-ms-fullscreen']];\nvar specApi = apiMap[0];\nvar browserApi; // determine the supported set of functions\n\nfor (var i = 0; i < apiMap.length; i++) {\n  // check for exitFullscreen function\n  if (apiMap[i][1] in document) {\n    browserApi = apiMap[i];\n    break;\n  }\n} // map the browser API names to the spec API names\n\n\nif (browserApi) {\n  for (var _i = 0; _i < browserApi.length; _i++) {\n    FullscreenApi[specApi[_i]] = browserApi[_i];\n  }\n\n  FullscreenApi.prefixed = browserApi[0] !== specApi[0];\n}\n\n/**\n * @file create-logger.js\n * @module create-logger\n */\n\nvar history = [];\n/**\n * Log messages to the console and history based on the type of message\n *\n * @private\n * @param  {string} type\n *         The name of the console method to use.\n *\n * @param  {Array} args\n *         The arguments to be passed to the matching console method.\n */\n\nvar LogByTypeFactory = function LogByTypeFactory(name, log) {\n  return function (type, level, args) {\n    var lvl = log.levels[level];\n    var lvlRegExp = new RegExp(\"^(\" + lvl + \")$\");\n\n    if (type !== 'log') {\n      // Add the type to the front of the message when it's not \"log\".\n      args.unshift(type.toUpperCase() + ':');\n    } // Add console prefix after adding to history.\n\n\n    args.unshift(name + ':'); // Add a clone of the args at this point to history.\n\n    if (history) {\n      history.push([].concat(args)); // only store 1000 history entries\n\n      var splice = history.length - 1000;\n      history.splice(0, splice > 0 ? splice : 0);\n    } // If there's no console then don't try to output messages, but they will\n    // still be stored in history.\n\n\n    if (!window.console) {\n      return;\n    } // Was setting these once outside of this function, but containing them\n    // in the function makes it easier to test cases where console doesn't exist\n    // when the module is executed.\n\n\n    var fn = window.console[type];\n\n    if (!fn && type === 'debug') {\n      // Certain browsers don't have support for console.debug. For those, we\n      // should default to the closest comparable log.\n      fn = window.console.info || window.console.log;\n    } // Bail out if there's no console or if this type is not allowed by the\n    // current logging level.\n\n\n    if (!fn || !lvl || !lvlRegExp.test(type)) {\n      return;\n    }\n\n    fn[Array.isArray(args) ? 'apply' : 'call'](window.console, args);\n  };\n};\n\nfunction createLogger$1(name) {\n  // This is the private tracking variable for logging level.\n  var level = 'info'; // the curried logByType bound to the specific log and history\n\n  var logByType;\n  /**\n   * Logs plain debug messages. Similar to `console.log`.\n   *\n   * Due to [limitations](https://github.com/jsdoc3/jsdoc/issues/955#issuecomment-313829149)\n   * of our JSDoc template, we cannot properly document this as both a function\n   * and a namespace, so its function signature is documented here.\n   *\n   * #### Arguments\n   * ##### *args\n   * Mixed[]\n   *\n   * Any combination of values that could be passed to `console.log()`.\n   *\n   * #### Return Value\n   *\n   * `undefined`\n   *\n   * @namespace\n   * @param    {Mixed[]} args\n   *           One or more messages or objects that should be logged.\n   */\n\n  var log = function log() {\n    for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {\n      args[_key] = arguments[_key];\n    }\n\n    logByType('log', level, args);\n  }; // This is the logByType helper that the logging methods below use\n\n\n  logByType = LogByTypeFactory(name, log);\n  /**\n   * Create a new sublogger which chains the old name to the new name.\n   *\n   * For example, doing `videojs.log.createLogger('player')` and then using that logger will log the following:\n   * ```js\n   *  mylogger('foo');\n   *  // > VIDEOJS: player: foo\n   * ```\n   *\n   * @param {string} name\n   *        The name to add call the new logger\n   * @return {Object}\n   */\n\n  log.createLogger = function (subname) {\n    return createLogger$1(name + ': ' + subname);\n  };\n  /**\n   * Enumeration of available logging levels, where the keys are the level names\n   * and the values are `|`-separated strings containing logging methods allowed\n   * in that logging level. These strings are used to create a regular expression\n   * matching the function name being called.\n   *\n   * Levels provided by Video.js are:\n   *\n   * - `off`: Matches no calls. Any value that can be cast to `false` will have\n   *   this effect. The most restrictive.\n   * - `all`: Matches only Video.js-provided functions (`debug`, `log`,\n   *   `log.warn`, and `log.error`).\n   * - `debug`: Matches `log.debug`, `log`, `log.warn`, and `log.error` calls.\n   * - `info` (default): Matches `log`, `log.warn`, and `log.error` calls.\n   * - `warn`: Matches `log.warn` and `log.error` calls.\n   * - `error`: Matches only `log.error` calls.\n   *\n   * @type {Object}\n   */\n\n\n  log.levels = {\n    all: 'debug|log|warn|error',\n    off: '',\n    debug: 'debug|log|warn|error',\n    info: 'log|warn|error',\n    warn: 'warn|error',\n    error: 'error',\n    DEFAULT: level\n  };\n  /**\n   * Get or set the current logging level.\n   *\n   * If a string matching a key from {@link module:log.levels} is provided, acts\n   * as a setter.\n   *\n   * @param  {string} [lvl]\n   *         Pass a valid level to set a new logging level.\n   *\n   * @return {string}\n   *         The current logging level.\n   */\n\n  log.level = function (lvl) {\n    if (typeof lvl === 'string') {\n      if (!log.levels.hasOwnProperty(lvl)) {\n        throw new Error(\"\\\"\" + lvl + \"\\\" in not a valid log level\");\n      }\n\n      level = lvl;\n    }\n\n    return level;\n  };\n  /**\n   * Returns an array containing everything that has been logged to the history.\n   *\n   * This array is a shallow clone of the internal history record. However, its\n   * contents are _not_ cloned; so, mutating objects inside this array will\n   * mutate them in history.\n   *\n   * @return {Array}\n   */\n\n\n  log.history = function () {\n    return history ? [].concat(history) : [];\n  };\n  /**\n   * Allows you to filter the history by the given logger name\n   *\n   * @param {string} fname\n   *        The name to filter by\n   *\n   * @return {Array}\n   *         The filtered list to return\n   */\n\n\n  log.history.filter = function (fname) {\n    return (history || []).filter(function (historyItem) {\n      // if the first item in each historyItem includes `fname`, then it's a match\n      return new RegExp(\".*\" + fname + \".*\").test(historyItem[0]);\n    });\n  };\n  /**\n   * Clears the internal history tracking, but does not prevent further history\n   * tracking.\n   */\n\n\n  log.history.clear = function () {\n    if (history) {\n      history.length = 0;\n    }\n  };\n  /**\n   * Disable history tracking if it is currently enabled.\n   */\n\n\n  log.history.disable = function () {\n    if (history !== null) {\n      history.length = 0;\n      history = null;\n    }\n  };\n  /**\n   * Enable history tracking if it is currently disabled.\n   */\n\n\n  log.history.enable = function () {\n    if (history === null) {\n      history = [];\n    }\n  };\n  /**\n   * Logs error messages. Similar to `console.error`.\n   *\n   * @param {Mixed[]} args\n   *        One or more messages or objects that should be logged as an error\n   */\n\n\n  log.error = function () {\n    for (var _len2 = arguments.length, args = new Array(_len2), _key2 = 0; _key2 < _len2; _key2++) {\n      args[_key2] = arguments[_key2];\n    }\n\n    return logByType('error', level, args);\n  };\n  /**\n   * Logs warning messages. Similar to `console.warn`.\n   *\n   * @param {Mixed[]} args\n   *        One or more messages or objects that should be logged as a warning.\n   */\n\n\n  log.warn = function () {\n    for (var _len3 = arguments.length, args = new Array(_len3), _key3 = 0; _key3 < _len3; _key3++) {\n      args[_key3] = arguments[_key3];\n    }\n\n    return logByType('warn', level, args);\n  };\n  /**\n   * Logs debug messages. Similar to `console.debug`, but may also act as a comparable\n   * log if `console.debug` is not available\n   *\n   * @param {Mixed[]} args\n   *        One or more messages or objects that should be logged as debug.\n   */\n\n\n  log.debug = function () {\n    for (var _len4 = arguments.length, args = new Array(_len4), _key4 = 0; _key4 < _len4; _key4++) {\n      args[_key4] = arguments[_key4];\n    }\n\n    return logByType('debug', level, args);\n  };\n\n  return log;\n}\n\n/**\n * @file log.js\n * @module log\n */\nvar log$1 = createLogger$1('VIDEOJS');\nvar createLogger = log$1.createLogger;\n\n/**\n * @file obj.js\n * @module obj\n */\n\n/**\n * @callback obj:EachCallback\n *\n * @param {Mixed} value\n *        The current key for the object that is being iterated over.\n *\n * @param {string} key\n *        The current key-value for object that is being iterated over\n */\n\n/**\n * @callback obj:ReduceCallback\n *\n * @param {Mixed} accum\n *        The value that is accumulating over the reduce loop.\n *\n * @param {Mixed} value\n *        The current key for the object that is being iterated over.\n *\n * @param {string} key\n *        The current key-value for object that is being iterated over\n *\n * @return {Mixed}\n *         The new accumulated value.\n */\nvar toString = Object.prototype.toString;\n/**\n * Get the keys of an Object\n *\n * @param {Object}\n *        The Object to get the keys from\n *\n * @return {string[]}\n *         An array of the keys from the object. Returns an empty array if the\n *         object passed in was invalid or had no keys.\n *\n * @private\n */\n\nvar keys = function keys(object) {\n  return isObject(object) ? Object.keys(object) : [];\n};\n/**\n * Array-like iteration for objects.\n *\n * @param {Object} object\n *        The object to iterate over\n *\n * @param {obj:EachCallback} fn\n *        The callback function which is called for each key in the object.\n */\n\n\nfunction each(object, fn) {\n  keys(object).forEach(function (key) {\n    return fn(object[key], key);\n  });\n}\n/**\n * Array-like reduce for objects.\n *\n * @param {Object} object\n *        The Object that you want to reduce.\n *\n * @param {Function} fn\n *         A callback function which is called for each key in the object. It\n *         receives the accumulated value and the per-iteration value and key\n *         as arguments.\n *\n * @param {Mixed} [initial = 0]\n *        Starting value\n *\n * @return {Mixed}\n *         The final accumulated value.\n */\n\nfunction reduce(object, fn, initial) {\n  if (initial === void 0) {\n    initial = 0;\n  }\n\n  return keys(object).reduce(function (accum, key) {\n    return fn(accum, object[key], key);\n  }, initial);\n}\n/**\n * Object.assign-style object shallow merge/extend.\n *\n * @param  {Object} target\n * @param  {Object} ...sources\n * @return {Object}\n */\n\nfunction assign(target) {\n  for (var _len = arguments.length, sources = new Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) {\n    sources[_key - 1] = arguments[_key];\n  }\n\n  if (Object.assign) {\n    return _extends.apply(void 0, [target].concat(sources));\n  }\n\n  sources.forEach(function (source) {\n    if (!source) {\n      return;\n    }\n\n    each(source, function (value, key) {\n      target[key] = value;\n    });\n  });\n  return target;\n}\n/**\n * Returns whether a value is an object of any kind - including DOM nodes,\n * arrays, regular expressions, etc. Not functions, though.\n *\n * This avoids the gotcha where using `typeof` on a `null` value\n * results in `'object'`.\n *\n * @param  {Object} value\n * @return {boolean}\n */\n\nfunction isObject(value) {\n  return !!value && typeof value === 'object';\n}\n/**\n * Returns whether an object appears to be a \"plain\" object - that is, a\n * direct instance of `Object`.\n *\n * @param  {Object} value\n * @return {boolean}\n */\n\nfunction isPlain(value) {\n  return isObject(value) && toString.call(value) === '[object Object]' && value.constructor === Object;\n}\n\n/**\n * @file computed-style.js\n * @module computed-style\n */\n/**\n * A safe getComputedStyle.\n *\n * This is needed because in Firefox, if the player is loaded in an iframe with\n * `display:none`, then `getComputedStyle` returns `null`, so, we do a\n * null-check to make sure that the player doesn't break in these cases.\n *\n * @function\n * @param    {Element} el\n *           The element you want the computed style of\n *\n * @param    {string} prop\n *           The property name you want\n *\n * @see      https://bugzilla.mozilla.org/show_bug.cgi?id=548397\n */\n\nfunction computedStyle(el, prop) {\n  if (!el || !prop) {\n    return '';\n  }\n\n  if (typeof window.getComputedStyle === 'function') {\n    var computedStyleValue;\n\n    try {\n      computedStyleValue = window.getComputedStyle(el);\n    } catch (e) {\n      return '';\n    }\n\n    return computedStyleValue ? computedStyleValue.getPropertyValue(prop) || computedStyleValue[prop] : '';\n  }\n\n  return '';\n}\n\n/**\n * @file browser.js\n * @module browser\n */\nvar USER_AGENT = window.navigator && window.navigator.userAgent || '';\nvar webkitVersionMap = /AppleWebKit\\/([\\d.]+)/i.exec(USER_AGENT);\nvar appleWebkitVersion = webkitVersionMap ? parseFloat(webkitVersionMap.pop()) : null;\n/**\n * Whether or not this device is an iPod.\n *\n * @static\n * @const\n * @type {Boolean}\n */\n\nvar IS_IPOD = /iPod/i.test(USER_AGENT);\n/**\n * The detected iOS version - or `null`.\n *\n * @static\n * @const\n * @type {string|null}\n */\n\nvar IOS_VERSION = function () {\n  var match = USER_AGENT.match(/OS (\\d+)_/i);\n\n  if (match && match[1]) {\n    return match[1];\n  }\n\n  return null;\n}();\n/**\n * Whether or not this is an Android device.\n *\n * @static\n * @const\n * @type {Boolean}\n */\n\nvar IS_ANDROID = /Android/i.test(USER_AGENT);\n/**\n * The detected Android version - or `null`.\n *\n * @static\n * @const\n * @type {number|string|null}\n */\n\nvar ANDROID_VERSION = function () {\n  // This matches Android Major.Minor.Patch versions\n  // ANDROID_VERSION is Major.Minor as a Number, if Minor isn't available, then only Major is returned\n  var match = USER_AGENT.match(/Android (\\d+)(?:\\.(\\d+))?(?:\\.(\\d+))*/i);\n\n  if (!match) {\n    return null;\n  }\n\n  var major = match[1] && parseFloat(match[1]);\n  var minor = match[2] && parseFloat(match[2]);\n\n  if (major && minor) {\n    return parseFloat(match[1] + '.' + match[2]);\n  } else if (major) {\n    return major;\n  }\n\n  return null;\n}();\n/**\n * Whether or not this is a native Android browser.\n *\n * @static\n * @const\n * @type {Boolean}\n */\n\nvar IS_NATIVE_ANDROID = IS_ANDROID && ANDROID_VERSION < 5 && appleWebkitVersion < 537;\n/**\n * Whether or not this is Mozilla Firefox.\n *\n * @static\n * @const\n * @type {Boolean}\n */\n\nvar IS_FIREFOX = /Firefox/i.test(USER_AGENT);\n/**\n * Whether or not this is Microsoft Edge.\n *\n * @static\n * @const\n * @type {Boolean}\n */\n\nvar IS_EDGE = /Edg/i.test(USER_AGENT);\n/**\n * Whether or not this is Google Chrome.\n *\n * This will also be `true` for Chrome on iOS, which will have different support\n * as it is actually Safari under the hood.\n *\n * @static\n * @const\n * @type {Boolean}\n */\n\nvar IS_CHROME = !IS_EDGE && (/Chrome/i.test(USER_AGENT) || /CriOS/i.test(USER_AGENT));\n/**\n * The detected Google Chrome version - or `null`.\n *\n * @static\n * @const\n * @type {number|null}\n */\n\nvar CHROME_VERSION = function () {\n  var match = USER_AGENT.match(/(Chrome|CriOS)\\/(\\d+)/);\n\n  if (match && match[2]) {\n    return parseFloat(match[2]);\n  }\n\n  return null;\n}();\n/**\n * The detected Internet Explorer version - or `null`.\n *\n * @static\n * @const\n * @type {number|null}\n */\n\nvar IE_VERSION = function () {\n  var result = /MSIE\\s(\\d+)\\.\\d/.exec(USER_AGENT);\n  var version = result && parseFloat(result[1]);\n\n  if (!version && /Trident\\/7.0/i.test(USER_AGENT) && /rv:11.0/.test(USER_AGENT)) {\n    // IE 11 has a different user agent string than other IE versions\n    version = 11.0;\n  }\n\n  return version;\n}();\n/**\n * Whether or not this is desktop Safari.\n *\n * @static\n * @const\n * @type {Boolean}\n */\n\nvar IS_SAFARI = /Safari/i.test(USER_AGENT) && !IS_CHROME && !IS_ANDROID && !IS_EDGE;\n/**\n * Whether or not this is a Windows machine.\n *\n * @static\n * @const\n * @type {Boolean}\n */\n\nvar IS_WINDOWS = /Windows/i.test(USER_AGENT);\n/**\n * Whether or not this device is touch-enabled.\n *\n * @static\n * @const\n * @type {Boolean}\n */\n\nvar TOUCH_ENABLED = Boolean(isReal() && ('ontouchstart' in window || window.navigator.maxTouchPoints || window.DocumentTouch && window.document instanceof window.DocumentTouch));\n/**\n * Whether or not this device is an iPad.\n *\n * @static\n * @const\n * @type {Boolean}\n */\n\nvar IS_IPAD = /iPad/i.test(USER_AGENT) || IS_SAFARI && TOUCH_ENABLED && !/iPhone/i.test(USER_AGENT);\n/**\n * Whether or not this device is an iPhone.\n *\n * @static\n * @const\n * @type {Boolean}\n */\n// The Facebook app's UIWebView identifies as both an iPhone and iPad, so\n// to identify iPhones, we need to exclude iPads.\n// http://artsy.github.io/blog/2012/10/18/the-perils-of-ios-user-agent-sniffing/\n\nvar IS_IPHONE = /iPhone/i.test(USER_AGENT) && !IS_IPAD;\n/**\n * Whether or not this is an iOS device.\n *\n * @static\n * @const\n * @type {Boolean}\n */\n\nvar IS_IOS = IS_IPHONE || IS_IPAD || IS_IPOD;\n/**\n * Whether or not this is any flavor of Safari - including iOS.\n *\n * @static\n * @const\n * @type {Boolean}\n */\n\nvar IS_ANY_SAFARI = (IS_SAFARI || IS_IOS) && !IS_CHROME;\n\nvar browser = /*#__PURE__*/Object.freeze({\n  __proto__: null,\n  IS_IPOD: IS_IPOD,\n  IOS_VERSION: IOS_VERSION,\n  IS_ANDROID: IS_ANDROID,\n  ANDROID_VERSION: ANDROID_VERSION,\n  IS_NATIVE_ANDROID: IS_NATIVE_ANDROID,\n  IS_FIREFOX: IS_FIREFOX,\n  IS_EDGE: IS_EDGE,\n  IS_CHROME: IS_CHROME,\n  CHROME_VERSION: CHROME_VERSION,\n  IE_VERSION: IE_VERSION,\n  IS_SAFARI: IS_SAFARI,\n  IS_WINDOWS: IS_WINDOWS,\n  TOUCH_ENABLED: TOUCH_ENABLED,\n  IS_IPAD: IS_IPAD,\n  IS_IPHONE: IS_IPHONE,\n  IS_IOS: IS_IOS,\n  IS_ANY_SAFARI: IS_ANY_SAFARI\n});\n\n/**\n * @file dom.js\n * @module dom\n */\n/**\n * Detect if a value is a string with any non-whitespace characters.\n *\n * @private\n * @param  {string} str\n *         The string to check\n *\n * @return {boolean}\n *         Will be `true` if the string is non-blank, `false` otherwise.\n *\n */\n\nfunction isNonBlankString(str) {\n  // we use str.trim as it will trim any whitespace characters\n  // from the front or back of non-whitespace characters. aka\n  // Any string that contains non-whitespace characters will\n  // still contain them after `trim` but whitespace only strings\n  // will have a length of 0, failing this check.\n  return typeof str === 'string' && Boolean(str.trim());\n}\n/**\n * Throws an error if the passed string has whitespace. This is used by\n * class methods to be relatively consistent with the classList API.\n *\n * @private\n * @param  {string} str\n *         The string to check for whitespace.\n *\n * @throws {Error}\n *         Throws an error if there is whitespace in the string.\n */\n\n\nfunction throwIfWhitespace(str) {\n  // str.indexOf instead of regex because str.indexOf is faster performance wise.\n  if (str.indexOf(' ') >= 0) {\n    throw new Error('class has illegal whitespace characters');\n  }\n}\n/**\n * Produce a regular expression for matching a className within an elements className.\n *\n * @private\n * @param  {string} className\n *         The className to generate the RegExp for.\n *\n * @return {RegExp}\n *         The RegExp that will check for a specific `className` in an elements\n *         className.\n */\n\n\nfunction classRegExp(className) {\n  return new RegExp('(^|\\\\s)' + className + '($|\\\\s)');\n}\n/**\n * Whether the current DOM interface appears to be real (i.e. not simulated).\n *\n * @return {boolean}\n *         Will be `true` if the DOM appears to be real, `false` otherwise.\n */\n\n\nfunction isReal() {\n  // Both document and window will never be undefined thanks to `global`.\n  return document === window.document;\n}\n/**\n * Determines, via duck typing, whether or not a value is a DOM element.\n *\n * @param  {Mixed} value\n *         The value to check.\n *\n * @return {boolean}\n *         Will be `true` if the value is a DOM element, `false` otherwise.\n */\n\nfunction isEl(value) {\n  return isObject(value) && value.nodeType === 1;\n}\n/**\n * Determines if the current DOM is embedded in an iframe.\n *\n * @return {boolean}\n *         Will be `true` if the DOM is embedded in an iframe, `false`\n *         otherwise.\n */\n\nfunction isInFrame() {\n  // We need a try/catch here because Safari will throw errors when attempting\n  // to get either `parent` or `self`\n  try {\n    return window.parent !== window.self;\n  } catch (x) {\n    return true;\n  }\n}\n/**\n * Creates functions to query the DOM using a given method.\n *\n * @private\n * @param   {string} method\n *          The method to create the query with.\n *\n * @return  {Function}\n *          The query method\n */\n\nfunction createQuerier(method) {\n  return function (selector, context) {\n    if (!isNonBlankString(selector)) {\n      return document[method](null);\n    }\n\n    if (isNonBlankString(context)) {\n      context = document.querySelector(context);\n    }\n\n    var ctx = isEl(context) ? context : document;\n    return ctx[method] && ctx[method](selector);\n  };\n}\n/**\n * Creates an element and applies properties, attributes, and inserts content.\n *\n * @param  {string} [tagName='div']\n *         Name of tag to be created.\n *\n * @param  {Object} [properties={}]\n *         Element properties to be applied.\n *\n * @param  {Object} [attributes={}]\n *         Element attributes to be applied.\n *\n * @param {module:dom~ContentDescriptor} content\n *        A content descriptor object.\n *\n * @return {Element}\n *         The element that was created.\n */\n\n\nfunction createEl(tagName, properties, attributes, content) {\n  if (tagName === void 0) {\n    tagName = 'div';\n  }\n\n  if (properties === void 0) {\n    properties = {};\n  }\n\n  if (attributes === void 0) {\n    attributes = {};\n  }\n\n  var el = document.createElement(tagName);\n  Object.getOwnPropertyNames(properties).forEach(function (propName) {\n    var val = properties[propName]; // See #2176\n    // We originally were accepting both properties and attributes in the\n    // same object, but that doesn't work so well.\n\n    if (propName.indexOf('aria-') !== -1 || propName === 'role' || propName === 'type') {\n      log$1.warn('Setting attributes in the second argument of createEl()\\n' + 'has been deprecated. Use the third argument instead.\\n' + (\"createEl(type, properties, attributes). Attempting to set \" + propName + \" to \" + val + \".\"));\n      el.setAttribute(propName, val); // Handle textContent since it's not supported everywhere and we have a\n      // method for it.\n    } else if (propName === 'textContent') {\n      textContent(el, val);\n    } else if (el[propName] !== val || propName === 'tabIndex') {\n      el[propName] = val;\n    }\n  });\n  Object.getOwnPropertyNames(attributes).forEach(function (attrName) {\n    el.setAttribute(attrName, attributes[attrName]);\n  });\n\n  if (content) {\n    appendContent(el, content);\n  }\n\n  return el;\n}\n/**\n * Injects text into an element, replacing any existing contents entirely.\n *\n * @param  {Element} el\n *         The element to add text content into\n *\n * @param  {string} text\n *         The text content to add.\n *\n * @return {Element}\n *         The element with added text content.\n */\n\nfunction textContent(el, text) {\n  if (typeof el.textContent === 'undefined') {\n    el.innerText = text;\n  } else {\n    el.textContent = text;\n  }\n\n  return el;\n}\n/**\n * Insert an element as the first child node of another\n *\n * @param {Element} child\n *        Element to insert\n *\n * @param {Element} parent\n *        Element to insert child into\n */\n\nfunction prependTo(child, parent) {\n  if (parent.firstChild) {\n    parent.insertBefore(child, parent.firstChild);\n  } else {\n    parent.appendChild(child);\n  }\n}\n/**\n * Check if an element has a class name.\n *\n * @param  {Element} element\n *         Element to check\n *\n * @param  {string} classToCheck\n *         Class name to check for\n *\n * @return {boolean}\n *         Will be `true` if the element has a class, `false` otherwise.\n *\n * @throws {Error}\n *         Throws an error if `classToCheck` has white space.\n */\n\nfunction hasClass(element, classToCheck) {\n  throwIfWhitespace(classToCheck);\n\n  if (element.classList) {\n    return element.classList.contains(classToCheck);\n  }\n\n  return classRegExp(classToCheck).test(element.className);\n}\n/**\n * Add a class name to an element.\n *\n * @param  {Element} element\n *         Element to add class name to.\n *\n * @param  {string} classToAdd\n *         Class name to add.\n *\n * @return {Element}\n *         The DOM element with the added class name.\n */\n\nfunction addClass(element, classToAdd) {\n  if (element.classList) {\n    element.classList.add(classToAdd); // Don't need to `throwIfWhitespace` here because `hasElClass` will do it\n    // in the case of classList not being supported.\n  } else if (!hasClass(element, classToAdd)) {\n    element.className = (element.className + ' ' + classToAdd).trim();\n  }\n\n  return element;\n}\n/**\n * Remove a class name from an element.\n *\n * @param  {Element} element\n *         Element to remove a class name from.\n *\n * @param  {string} classToRemove\n *         Class name to remove\n *\n * @return {Element}\n *         The DOM element with class name removed.\n */\n\nfunction removeClass(element, classToRemove) {\n  // Protect in case the player gets disposed\n  if (!element) {\n    log$1.warn(\"removeClass was called with an element that doesn't exist\");\n    return null;\n  }\n\n  if (element.classList) {\n    element.classList.remove(classToRemove);\n  } else {\n    throwIfWhitespace(classToRemove);\n    element.className = element.className.split(/\\s+/).filter(function (c) {\n      return c !== classToRemove;\n    }).join(' ');\n  }\n\n  return element;\n}\n/**\n * The callback definition for toggleClass.\n *\n * @callback module:dom~PredicateCallback\n * @param    {Element} element\n *           The DOM element of the Component.\n *\n * @param    {string} classToToggle\n *           The `className` that wants to be toggled\n *\n * @return   {boolean|undefined}\n *           If `true` is returned, the `classToToggle` will be added to the\n *           `element`. If `false`, the `classToToggle` will be removed from\n *           the `element`. If `undefined`, the callback will be ignored.\n */\n\n/**\n * Adds or removes a class name to/from an element depending on an optional\n * condition or the presence/absence of the class name.\n *\n * @param  {Element} element\n *         The element to toggle a class name on.\n *\n * @param  {string} classToToggle\n *         The class that should be toggled.\n *\n * @param  {boolean|module:dom~PredicateCallback} [predicate]\n *         See the return value for {@link module:dom~PredicateCallback}\n *\n * @return {Element}\n *         The element with a class that has been toggled.\n */\n\nfunction toggleClass(element, classToToggle, predicate) {\n  // This CANNOT use `classList` internally because IE11 does not support the\n  // second parameter to the `classList.toggle()` method! Which is fine because\n  // `classList` will be used by the add/remove functions.\n  var has = hasClass(element, classToToggle);\n\n  if (typeof predicate === 'function') {\n    predicate = predicate(element, classToToggle);\n  }\n\n  if (typeof predicate !== 'boolean') {\n    predicate = !has;\n  } // If the necessary class operation matches the current state of the\n  // element, no action is required.\n\n\n  if (predicate === has) {\n    return;\n  }\n\n  if (predicate) {\n    addClass(element, classToToggle);\n  } else {\n    removeClass(element, classToToggle);\n  }\n\n  return element;\n}\n/**\n * Apply attributes to an HTML element.\n *\n * @param {Element} el\n *        Element to add attributes to.\n *\n * @param {Object} [attributes]\n *        Attributes to be applied.\n */\n\nfunction setAttributes(el, attributes) {\n  Object.getOwnPropertyNames(attributes).forEach(function (attrName) {\n    var attrValue = attributes[attrName];\n\n    if (attrValue === null || typeof attrValue === 'undefined' || attrValue === false) {\n      el.removeAttribute(attrName);\n    } else {\n      el.setAttribute(attrName, attrValue === true ? '' : attrValue);\n    }\n  });\n}\n/**\n * Get an element's attribute values, as defined on the HTML tag.\n *\n * Attributes are not the same as properties. They're defined on the tag\n * or with setAttribute.\n *\n * @param  {Element} tag\n *         Element from which to get tag attributes.\n *\n * @return {Object}\n *         All attributes of the element. Boolean attributes will be `true` or\n *         `false`, others will be strings.\n */\n\nfunction getAttributes(tag) {\n  var obj = {}; // known boolean attributes\n  // we can check for matching boolean properties, but not all browsers\n  // and not all tags know about these attributes, so, we still want to check them manually\n\n  var knownBooleans = ',' + 'autoplay,controls,playsinline,loop,muted,default,defaultMuted' + ',';\n\n  if (tag && tag.attributes && tag.attributes.length > 0) {\n    var attrs = tag.attributes;\n\n    for (var i = attrs.length - 1; i >= 0; i--) {\n      var attrName = attrs[i].name;\n      var attrVal = attrs[i].value; // check for known booleans\n      // the matching element property will return a value for typeof\n\n      if (typeof tag[attrName] === 'boolean' || knownBooleans.indexOf(',' + attrName + ',') !== -1) {\n        // the value of an included boolean attribute is typically an empty\n        // string ('') which would equal false if we just check for a false value.\n        // we also don't want support bad code like autoplay='false'\n        attrVal = attrVal !== null ? true : false;\n      }\n\n      obj[attrName] = attrVal;\n    }\n  }\n\n  return obj;\n}\n/**\n * Get the value of an element's attribute.\n *\n * @param {Element} el\n *        A DOM element.\n *\n * @param {string} attribute\n *        Attribute to get the value of.\n *\n * @return {string}\n *         The value of the attribute.\n */\n\nfunction getAttribute(el, attribute) {\n  return el.getAttribute(attribute);\n}\n/**\n * Set the value of an element's attribute.\n *\n * @param {Element} el\n *        A DOM element.\n *\n * @param {string} attribute\n *        Attribute to set.\n *\n * @param {string} value\n *        Value to set the attribute to.\n */\n\nfunction setAttribute(el, attribute, value) {\n  el.setAttribute(attribute, value);\n}\n/**\n * Remove an element's attribute.\n *\n * @param {Element} el\n *        A DOM element.\n *\n * @param {string} attribute\n *        Attribute to remove.\n */\n\nfunction removeAttribute(el, attribute) {\n  el.removeAttribute(attribute);\n}\n/**\n * Attempt to block the ability to select text.\n */\n\nfunction blockTextSelection() {\n  document.body.focus();\n\n  document.onselectstart = function () {\n    return false;\n  };\n}\n/**\n * Turn off text selection blocking.\n */\n\nfunction unblockTextSelection() {\n  document.onselectstart = function () {\n    return true;\n  };\n}\n/**\n * Identical to the native `getBoundingClientRect` function, but ensures that\n * the method is supported at all (it is in all browsers we claim to support)\n * and that the element is in the DOM before continuing.\n *\n * This wrapper function also shims properties which are not provided by some\n * older browsers (namely, IE8).\n *\n * Additionally, some browsers do not support adding properties to a\n * `ClientRect`/`DOMRect` object; so, we shallow-copy it with the standard\n * properties (except `x` and `y` which are not widely supported). This helps\n * avoid implementations where keys are non-enumerable.\n *\n * @param  {Element} el\n *         Element whose `ClientRect` we want to calculate.\n *\n * @return {Object|undefined}\n *         Always returns a plain object - or `undefined` if it cannot.\n */\n\nfunction getBoundingClientRect(el) {\n  if (el && el.getBoundingClientRect && el.parentNode) {\n    var rect = el.getBoundingClientRect();\n    var result = {};\n    ['bottom', 'height', 'left', 'right', 'top', 'width'].forEach(function (k) {\n      if (rect[k] !== undefined) {\n        result[k] = rect[k];\n      }\n    });\n\n    if (!result.height) {\n      result.height = parseFloat(computedStyle(el, 'height'));\n    }\n\n    if (!result.width) {\n      result.width = parseFloat(computedStyle(el, 'width'));\n    }\n\n    return result;\n  }\n}\n/**\n * Represents the position of a DOM element on the page.\n *\n * @typedef  {Object} module:dom~Position\n *\n * @property {number} left\n *           Pixels to the left.\n *\n * @property {number} top\n *           Pixels from the top.\n */\n\n/**\n * Get the position of an element in the DOM.\n *\n * Uses `getBoundingClientRect` technique from John Resig.\n *\n * @see http://ejohn.org/blog/getboundingclientrect-is-awesome/\n *\n * @param  {Element} el\n *         Element from which to get offset.\n *\n * @return {module:dom~Position}\n *         The position of the element that was passed in.\n */\n\nfunction findPosition(el) {\n  if (!el || el && !el.offsetParent) {\n    return {\n      left: 0,\n      top: 0,\n      width: 0,\n      height: 0\n    };\n  }\n\n  var width = el.offsetWidth;\n  var height = el.offsetHeight;\n  var left = 0;\n  var top = 0;\n\n  while (el.offsetParent && el !== document[FullscreenApi.fullscreenElement]) {\n    left += el.offsetLeft;\n    top += el.offsetTop;\n    el = el.offsetParent;\n  }\n\n  return {\n    left: left,\n    top: top,\n    width: width,\n    height: height\n  };\n}\n/**\n * Represents x and y coordinates for a DOM element or mouse pointer.\n *\n * @typedef  {Object} module:dom~Coordinates\n *\n * @property {number} x\n *           x coordinate in pixels\n *\n * @property {number} y\n *           y coordinate in pixels\n */\n\n/**\n * Get the pointer position within an element.\n *\n * The base on the coordinates are the bottom left of the element.\n *\n * @param  {Element} el\n *         Element on which to get the pointer position on.\n *\n * @param  {EventTarget~Event} event\n *         Event object.\n *\n * @return {module:dom~Coordinates}\n *         A coordinates object corresponding to the mouse position.\n *\n */\n\nfunction getPointerPosition(el, event) {\n  var translated = {\n    x: 0,\n    y: 0\n  };\n\n  if (IS_IOS) {\n    var item = el;\n\n    while (item && item.nodeName.toLowerCase() !== 'html') {\n      var transform = computedStyle(item, 'transform');\n\n      if (/^matrix/.test(transform)) {\n        var values = transform.slice(7, -1).split(/,\\s/).map(Number);\n        translated.x += values[4];\n        translated.y += values[5];\n      } else if (/^matrix3d/.test(transform)) {\n        var _values = transform.slice(9, -1).split(/,\\s/).map(Number);\n\n        translated.x += _values[12];\n        translated.y += _values[13];\n      }\n\n      item = item.parentNode;\n    }\n  }\n\n  var position = {};\n  var boxTarget = findPosition(event.target);\n  var box = findPosition(el);\n  var boxW = box.width;\n  var boxH = box.height;\n  var offsetY = event.offsetY - (box.top - boxTarget.top);\n  var offsetX = event.offsetX - (box.left - boxTarget.left);\n\n  if (event.changedTouches) {\n    offsetX = event.changedTouches[0].pageX - box.left;\n    offsetY = event.changedTouches[0].pageY + box.top;\n\n    if (IS_IOS) {\n      offsetX -= translated.x;\n      offsetY -= translated.y;\n    }\n  }\n\n  position.y = 1 - Math.max(0, Math.min(1, offsetY / boxH));\n  position.x = Math.max(0, Math.min(1, offsetX / boxW));\n  return position;\n}\n/**\n * Determines, via duck typing, whether or not a value is a text node.\n *\n * @param  {Mixed} value\n *         Check if this value is a text node.\n *\n * @return {boolean}\n *         Will be `true` if the value is a text node, `false` otherwise.\n */\n\nfunction isTextNode(value) {\n  return isObject(value) && value.nodeType === 3;\n}\n/**\n * Empties the contents of an element.\n *\n * @param  {Element} el\n *         The element to empty children from\n *\n * @return {Element}\n *         The element with no children\n */\n\nfunction emptyEl(el) {\n  while (el.firstChild) {\n    el.removeChild(el.firstChild);\n  }\n\n  return el;\n}\n/**\n * This is a mixed value that describes content to be injected into the DOM\n * via some method. It can be of the following types:\n *\n * Type       | Description\n * -----------|-------------\n * `string`   | The value will be normalized into a text node.\n * `Element`  | The value will be accepted as-is.\n * `TextNode` | The value will be accepted as-is.\n * `Array`    | A one-dimensional array of strings, elements, text nodes, or functions. These functions should return a string, element, or text node (any other return value, like an array, will be ignored).\n * `Function` | A function, which is expected to return a string, element, text node, or array - any of the other possible values described above. This means that a content descriptor could be a function that returns an array of functions, but those second-level functions must return strings, elements, or text nodes.\n *\n * @typedef {string|Element|TextNode|Array|Function} module:dom~ContentDescriptor\n */\n\n/**\n * Normalizes content for eventual insertion into the DOM.\n *\n * This allows a wide range of content definition methods, but helps protect\n * from falling into the trap of simply writing to `innerHTML`, which could\n * be an XSS concern.\n *\n * The content for an element can be passed in multiple types and\n * combinations, whose behavior is as follows:\n *\n * @param {module:dom~ContentDescriptor} content\n *        A content descriptor value.\n *\n * @return {Array}\n *         All of the content that was passed in, normalized to an array of\n *         elements or text nodes.\n */\n\nfunction normalizeContent(content) {\n  // First, invoke content if it is a function. If it produces an array,\n  // that needs to happen before normalization.\n  if (typeof content === 'function') {\n    content = content();\n  } // Next up, normalize to an array, so one or many items can be normalized,\n  // filtered, and returned.\n\n\n  return (Array.isArray(content) ? content : [content]).map(function (value) {\n    // First, invoke value if it is a function to produce a new value,\n    // which will be subsequently normalized to a Node of some kind.\n    if (typeof value === 'function') {\n      value = value();\n    }\n\n    if (isEl(value) || isTextNode(value)) {\n      return value;\n    }\n\n    if (typeof value === 'string' && /\\S/.test(value)) {\n      return document.createTextNode(value);\n    }\n  }).filter(function (value) {\n    return value;\n  });\n}\n/**\n * Normalizes and appends content to an element.\n *\n * @param  {Element} el\n *         Element to append normalized content to.\n *\n * @param {module:dom~ContentDescriptor} content\n *        A content descriptor value.\n *\n * @return {Element}\n *         The element with appended normalized content.\n */\n\nfunction appendContent(el, content) {\n  normalizeContent(content).forEach(function (node) {\n    return el.appendChild(node);\n  });\n  return el;\n}\n/**\n * Normalizes and inserts content into an element; this is identical to\n * `appendContent()`, except it empties the element first.\n *\n * @param {Element} el\n *        Element to insert normalized content into.\n *\n * @param {module:dom~ContentDescriptor} content\n *        A content descriptor value.\n *\n * @return {Element}\n *         The element with inserted normalized content.\n */\n\nfunction insertContent(el, content) {\n  return appendContent(emptyEl(el), content);\n}\n/**\n * Check if an event was a single left click.\n *\n * @param  {EventTarget~Event} event\n *         Event object.\n *\n * @return {boolean}\n *         Will be `true` if a single left click, `false` otherwise.\n */\n\nfunction isSingleLeftClick(event) {\n  // Note: if you create something draggable, be sure to\n  // call it on both `mousedown` and `mousemove` event,\n  // otherwise `mousedown` should be enough for a button\n  if (event.button === undefined && event.buttons === undefined) {\n    // Why do we need `buttons` ?\n    // Because, middle mouse sometimes have this:\n    // e.button === 0 and e.buttons === 4\n    // Furthermore, we want to prevent combination click, something like\n    // HOLD middlemouse then left click, that would be\n    // e.button === 0, e.buttons === 5\n    // just `button` is not gonna work\n    // Alright, then what this block does ?\n    // this is for chrome `simulate mobile devices`\n    // I want to support this as well\n    return true;\n  }\n\n  if (event.button === 0 && event.buttons === undefined) {\n    // Touch screen, sometimes on some specific device, `buttons`\n    // doesn't have anything (safari on ios, blackberry...)\n    return true;\n  } // `mouseup` event on a single left click has\n  // `button` and `buttons` equal to 0\n\n\n  if (event.type === 'mouseup' && event.button === 0 && event.buttons === 0) {\n    return true;\n  }\n\n  if (event.button !== 0 || event.buttons !== 1) {\n    // This is the reason we have those if else block above\n    // if any special case we can catch and let it slide\n    // we do it above, when get to here, this definitely\n    // is-not-left-click\n    return false;\n  }\n\n  return true;\n}\n/**\n * Finds a single DOM element matching `selector` within the optional\n * `context` of another DOM element (defaulting to `document`).\n *\n * @param  {string} selector\n *         A valid CSS selector, which will be passed to `querySelector`.\n *\n * @param  {Element|String} [context=document]\n *         A DOM element within which to query. Can also be a selector\n *         string in which case the first matching element will be used\n *         as context. If missing (or no element matches selector), falls\n *         back to `document`.\n *\n * @return {Element|null}\n *         The element that was found or null.\n */\n\nvar $ = createQuerier('querySelector');\n/**\n * Finds a all DOM elements matching `selector` within the optional\n * `context` of another DOM element (defaulting to `document`).\n *\n * @param  {string} selector\n *         A valid CSS selector, which will be passed to `querySelectorAll`.\n *\n * @param  {Element|String} [context=document]\n *         A DOM element within which to query. Can also be a selector\n *         string in which case the first matching element will be used\n *         as context. If missing (or no element matches selector), falls\n *         back to `document`.\n *\n * @return {NodeList}\n *         A element list of elements that were found. Will be empty if none\n *         were found.\n *\n */\n\nvar $$ = createQuerier('querySelectorAll');\n\nvar Dom = /*#__PURE__*/Object.freeze({\n  __proto__: null,\n  isReal: isReal,\n  isEl: isEl,\n  isInFrame: isInFrame,\n  createEl: createEl,\n  textContent: textContent,\n  prependTo: prependTo,\n  hasClass: hasClass,\n  addClass: addClass,\n  removeClass: removeClass,\n  toggleClass: toggleClass,\n  setAttributes: setAttributes,\n  getAttributes: getAttributes,\n  getAttribute: getAttribute,\n  setAttribute: setAttribute,\n  removeAttribute: removeAttribute,\n  blockTextSelection: blockTextSelection,\n  unblockTextSelection: unblockTextSelection,\n  getBoundingClientRect: getBoundingClientRect,\n  findPosition: findPosition,\n  getPointerPosition: getPointerPosition,\n  isTextNode: isTextNode,\n  emptyEl: emptyEl,\n  normalizeContent: normalizeContent,\n  appendContent: appendContent,\n  insertContent: insertContent,\n  isSingleLeftClick: isSingleLeftClick,\n  $: $,\n  $$: $$\n});\n\n/**\n * @file setup.js - Functions for setting up a player without\n * user interaction based on the data-setup `attribute` of the video tag.\n *\n * @module setup\n */\nvar _windowLoaded = false;\nvar videojs$1;\n/**\n * Set up any tags that have a data-setup `attribute` when the player is started.\n */\n\nvar autoSetup = function autoSetup() {\n  if (videojs$1.options.autoSetup === false) {\n    return;\n  }\n\n  var vids = Array.prototype.slice.call(document.getElementsByTagName('video'));\n  var audios = Array.prototype.slice.call(document.getElementsByTagName('audio'));\n  var divs = Array.prototype.slice.call(document.getElementsByTagName('video-js'));\n  var mediaEls = vids.concat(audios, divs); // Check if any media elements exist\n\n  if (mediaEls && mediaEls.length > 0) {\n    for (var i = 0, e = mediaEls.length; i < e; i++) {\n      var mediaEl = mediaEls[i]; // Check if element exists, has getAttribute func.\n\n      if (mediaEl && mediaEl.getAttribute) {\n        // Make sure this player hasn't already been set up.\n        if (mediaEl.player === undefined) {\n          var options = mediaEl.getAttribute('data-setup'); // Check if data-setup attr exists.\n          // We only auto-setup if they've added the data-setup attr.\n\n          if (options !== null) {\n            // Create new video.js instance.\n            videojs$1(mediaEl);\n          }\n        } // If getAttribute isn't defined, we need to wait for the DOM.\n\n      } else {\n        autoSetupTimeout(1);\n        break;\n      }\n    } // No videos were found, so keep looping unless page is finished loading.\n\n  } else if (!_windowLoaded) {\n    autoSetupTimeout(1);\n  }\n};\n/**\n * Wait until the page is loaded before running autoSetup. This will be called in\n * autoSetup if `hasLoaded` returns false.\n *\n * @param {number} wait\n *        How long to wait in ms\n *\n * @param {module:videojs} [vjs]\n *        The videojs library function\n */\n\n\nfunction autoSetupTimeout(wait, vjs) {\n  // Protect against breakage in non-browser environments\n  if (!isReal()) {\n    return;\n  }\n\n  if (vjs) {\n    videojs$1 = vjs;\n  }\n\n  window.setTimeout(autoSetup, wait);\n}\n/**\n * Used to set the internal tracking of window loaded state to true.\n *\n * @private\n */\n\n\nfunction setWindowLoaded() {\n  _windowLoaded = true;\n  window.removeEventListener('load', setWindowLoaded);\n}\n\nif (isReal()) {\n  if (document.readyState === 'complete') {\n    setWindowLoaded();\n  } else {\n    /**\n     * Listen for the load event on window, and set _windowLoaded to true.\n     *\n     * We use a standard event listener here to avoid incrementing the GUID\n     * before any players are created.\n     *\n     * @listens load\n     */\n    window.addEventListener('load', setWindowLoaded);\n  }\n}\n\n/**\n * @file stylesheet.js\n * @module stylesheet\n */\n/**\n * Create a DOM syle element given a className for it.\n *\n * @param {string} className\n *        The className to add to the created style element.\n *\n * @return {Element}\n *         The element that was created.\n */\n\nvar createStyleElement = function createStyleElement(className) {\n  var style = document.createElement('style');\n  style.className = className;\n  return style;\n};\n/**\n * Add text to a DOM element.\n *\n * @param {Element} el\n *        The Element to add text content to.\n *\n * @param {string} content\n *        The text to add to the element.\n */\n\nvar setTextContent = function setTextContent(el, content) {\n  if (el.styleSheet) {\n    el.styleSheet.cssText = content;\n  } else {\n    el.textContent = content;\n  }\n};\n\n/**\n * @file guid.js\n * @module guid\n */\n// Default value for GUIDs. This allows us to reset the GUID counter in tests.\n//\n// The initial GUID is 3 because some users have come to rely on the first\n// default player ID ending up as `vjs_video_3`.\n//\n// See: https://github.com/videojs/video.js/pull/6216\nvar _initialGuid = 3;\n/**\n * Unique ID for an element or function\n *\n * @type {Number}\n */\n\nvar _guid = _initialGuid;\n/**\n * Get a unique auto-incrementing ID by number that has not been returned before.\n *\n * @return {number}\n *         A new unique ID.\n */\n\nfunction newGUID() {\n  return _guid++;\n}\n\n/**\n * @file dom-data.js\n * @module dom-data\n */\nvar FakeWeakMap;\n\nif (!window.WeakMap) {\n  FakeWeakMap = /*#__PURE__*/function () {\n    function FakeWeakMap() {\n      this.vdata = 'vdata' + Math.floor(window.performance && window.performance.now() || Date.now());\n      this.data = {};\n    }\n\n    var _proto = FakeWeakMap.prototype;\n\n    _proto.set = function set(key, value) {\n      var access = key[this.vdata] || newGUID();\n\n      if (!key[this.vdata]) {\n        key[this.vdata] = access;\n      }\n\n      this.data[access] = value;\n      return this;\n    };\n\n    _proto.get = function get(key) {\n      var access = key[this.vdata]; // we have data, return it\n\n      if (access) {\n        return this.data[access];\n      } // we don't have data, return nothing.\n      // return undefined explicitly as that's the contract for this method\n\n\n      log$1('We have no data for this element', key);\n      return undefined;\n    };\n\n    _proto.has = function has(key) {\n      var access = key[this.vdata];\n      return access in this.data;\n    };\n\n    _proto[\"delete\"] = function _delete(key) {\n      var access = key[this.vdata];\n\n      if (access) {\n        delete this.data[access];\n        delete key[this.vdata];\n      }\n    };\n\n    return FakeWeakMap;\n  }();\n}\n/**\n * Element Data Store.\n *\n * Allows for binding data to an element without putting it directly on the\n * element. Ex. Event listeners are stored here.\n * (also from jsninja.com, slightly modified and updated for closure compiler)\n *\n * @type {Object}\n * @private\n */\n\n\nvar DomData = window.WeakMap ? new WeakMap() : new FakeWeakMap();\n\n/**\n * @file events.js. An Event System (John Resig - Secrets of a JS Ninja http://jsninja.com/)\n * (Original book version wasn't completely usable, so fixed some things and made Closure Compiler compatible)\n * This should work very similarly to jQuery's events, however it's based off the book version which isn't as\n * robust as jquery's, so there's probably some differences.\n *\n * @file events.js\n * @module events\n */\n/**\n * Clean up the listener cache and dispatchers\n *\n * @param {Element|Object} elem\n *        Element to clean up\n *\n * @param {string} type\n *        Type of event to clean up\n */\n\nfunction _cleanUpEvents(elem, type) {\n  if (!DomData.has(elem)) {\n    return;\n  }\n\n  var data = DomData.get(elem); // Remove the events of a particular type if there are none left\n\n  if (data.handlers[type].length === 0) {\n    delete data.handlers[type]; // data.handlers[type] = null;\n    // Setting to null was causing an error with data.handlers\n    // Remove the meta-handler from the element\n\n    if (elem.removeEventListener) {\n      elem.removeEventListener(type, data.dispatcher, false);\n    } else if (elem.detachEvent) {\n      elem.detachEvent('on' + type, data.dispatcher);\n    }\n  } // Remove the events object if there are no types left\n\n\n  if (Object.getOwnPropertyNames(data.handlers).length <= 0) {\n    delete data.handlers;\n    delete data.dispatcher;\n    delete data.disabled;\n  } // Finally remove the element data if there is no data left\n\n\n  if (Object.getOwnPropertyNames(data).length === 0) {\n    DomData[\"delete\"](elem);\n  }\n}\n/**\n * Loops through an array of event types and calls the requested method for each type.\n *\n * @param {Function} fn\n *        The event method we want to use.\n *\n * @param {Element|Object} elem\n *        Element or object to bind listeners to\n *\n * @param {string} type\n *        Type of event to bind to.\n *\n * @param {EventTarget~EventListener} callback\n *        Event listener.\n */\n\n\nfunction _handleMultipleEvents(fn, elem, types, callback) {\n  types.forEach(function (type) {\n    // Call the event method for each one of the types\n    fn(elem, type, callback);\n  });\n}\n/**\n * Fix a native event to have standard property values\n *\n * @param {Object} event\n *        Event object to fix.\n *\n * @return {Object}\n *         Fixed event object.\n */\n\n\nfunction fixEvent(event) {\n  if (event.fixed_) {\n    return event;\n  }\n\n  function returnTrue() {\n    return true;\n  }\n\n  function returnFalse() {\n    return false;\n  } // Test if fixing up is needed\n  // Used to check if !event.stopPropagation instead of isPropagationStopped\n  // But native events return true for stopPropagation, but don't have\n  // other expected methods like isPropagationStopped. Seems to be a problem\n  // with the Javascript Ninja code. So we're just overriding all events now.\n\n\n  if (!event || !event.isPropagationStopped || !event.isImmediatePropagationStopped) {\n    var old = event || window.event;\n    event = {}; // Clone the old object so that we can modify the values event = {};\n    // IE8 Doesn't like when you mess with native event properties\n    // Firefox returns false for event.hasOwnProperty('type') and other props\n    //  which makes copying more difficult.\n    // TODO: Probably best to create a whitelist of event props\n\n    for (var key in old) {\n      // Safari 6.0.3 warns you if you try to copy deprecated layerX/Y\n      // Chrome warns you if you try to copy deprecated keyboardEvent.keyLocation\n      // and webkitMovementX/Y\n      if (key !== 'layerX' && key !== 'layerY' && key !== 'keyLocation' && key !== 'webkitMovementX' && key !== 'webkitMovementY') {\n        // Chrome 32+ warns if you try to copy deprecated returnValue, but\n        // we still want to if preventDefault isn't supported (IE8).\n        if (!(key === 'returnValue' && old.preventDefault)) {\n          event[key] = old[key];\n        }\n      }\n    } // The event occurred on this element\n\n\n    if (!event.target) {\n      event.target = event.srcElement || document;\n    } // Handle which other element the event is related to\n\n\n    if (!event.relatedTarget) {\n      event.relatedTarget = event.fromElement === event.target ? event.toElement : event.fromElement;\n    } // Stop the default browser action\n\n\n    event.preventDefault = function () {\n      if (old.preventDefault) {\n        old.preventDefault();\n      }\n\n      event.returnValue = false;\n      old.returnValue = false;\n      event.defaultPrevented = true;\n    };\n\n    event.defaultPrevented = false; // Stop the event from bubbling\n\n    event.stopPropagation = function () {\n      if (old.stopPropagation) {\n        old.stopPropagation();\n      }\n\n      event.cancelBubble = true;\n      old.cancelBubble = true;\n      event.isPropagationStopped = returnTrue;\n    };\n\n    event.isPropagationStopped = returnFalse; // Stop the event from bubbling and executing other handlers\n\n    event.stopImmediatePropagation = function () {\n      if (old.stopImmediatePropagation) {\n        old.stopImmediatePropagation();\n      }\n\n      event.isImmediatePropagationStopped = returnTrue;\n      event.stopPropagation();\n    };\n\n    event.isImmediatePropagationStopped = returnFalse; // Handle mouse position\n\n    if (event.clientX !== null && event.clientX !== undefined) {\n      var doc = document.documentElement;\n      var body = document.body;\n      event.pageX = event.clientX + (doc && doc.scrollLeft || body && body.scrollLeft || 0) - (doc && doc.clientLeft || body && body.clientLeft || 0);\n      event.pageY = event.clientY + (doc && doc.scrollTop || body && body.scrollTop || 0) - (doc && doc.clientTop || body && body.clientTop || 0);\n    } // Handle key presses\n\n\n    event.which = event.charCode || event.keyCode; // Fix button for mouse clicks:\n    // 0 == left; 1 == middle; 2 == right\n\n    if (event.button !== null && event.button !== undefined) {\n      // The following is disabled because it does not pass videojs-standard\n      // and... yikes.\n\n      /* eslint-disable */\n      event.button = event.button & 1 ? 0 : event.button & 4 ? 1 : event.button & 2 ? 2 : 0;\n      /* eslint-enable */\n    }\n  }\n\n  event.fixed_ = true; // Returns fixed-up instance\n\n  return event;\n}\n/**\n * Whether passive event listeners are supported\n */\n\nvar _supportsPassive;\n\nvar supportsPassive = function supportsPassive() {\n  if (typeof _supportsPassive !== 'boolean') {\n    _supportsPassive = false;\n\n    try {\n      var opts = Object.defineProperty({}, 'passive', {\n        get: function get() {\n          _supportsPassive = true;\n        }\n      });\n      window.addEventListener('test', null, opts);\n      window.removeEventListener('test', null, opts);\n    } catch (e) {// disregard\n    }\n  }\n\n  return _supportsPassive;\n};\n/**\n * Touch events Chrome expects to be passive\n */\n\n\nvar passiveEvents = ['touchstart', 'touchmove'];\n/**\n * Add an event listener to element\n * It stores the handler function in a separate cache object\n * and adds a generic handler to the element's event,\n * along with a unique id (guid) to the element.\n *\n * @param {Element|Object} elem\n *        Element or object to bind listeners to\n *\n * @param {string|string[]} type\n *        Type of event to bind to.\n *\n * @param {EventTarget~EventListener} fn\n *        Event listener.\n */\n\nfunction on(elem, type, fn) {\n  if (Array.isArray(type)) {\n    return _handleMultipleEvents(on, elem, type, fn);\n  }\n\n  if (!DomData.has(elem)) {\n    DomData.set(elem, {});\n  }\n\n  var data = DomData.get(elem); // We need a place to store all our handler data\n\n  if (!data.handlers) {\n    data.handlers = {};\n  }\n\n  if (!data.handlers[type]) {\n    data.handlers[type] = [];\n  }\n\n  if (!fn.guid) {\n    fn.guid = newGUID();\n  }\n\n  data.handlers[type].push(fn);\n\n  if (!data.dispatcher) {\n    data.disabled = false;\n\n    data.dispatcher = function (event, hash) {\n      if (data.disabled) {\n        return;\n      }\n\n      event = fixEvent(event);\n      var handlers = data.handlers[event.type];\n\n      if (handlers) {\n        // Copy handlers so if handlers are added/removed during the process it doesn't throw everything off.\n        var handlersCopy = handlers.slice(0);\n\n        for (var m = 0, n = handlersCopy.length; m < n; m++) {\n          if (event.isImmediatePropagationStopped()) {\n            break;\n          } else {\n            try {\n              handlersCopy[m].call(elem, event, hash);\n            } catch (e) {\n              log$1.error(e);\n            }\n          }\n        }\n      }\n    };\n  }\n\n  if (data.handlers[type].length === 1) {\n    if (elem.addEventListener) {\n      var options = false;\n\n      if (supportsPassive() && passiveEvents.indexOf(type) > -1) {\n        options = {\n          passive: true\n        };\n      }\n\n      elem.addEventListener(type, data.dispatcher, options);\n    } else if (elem.attachEvent) {\n      elem.attachEvent('on' + type, data.dispatcher);\n    }\n  }\n}\n/**\n * Removes event listeners from an element\n *\n * @param {Element|Object} elem\n *        Object to remove listeners from.\n *\n * @param {string|string[]} [type]\n *        Type of listener to remove. Don't include to remove all events from element.\n *\n * @param {EventTarget~EventListener} [fn]\n *        Specific listener to remove. Don't include to remove listeners for an event\n *        type.\n */\n\nfunction off(elem, type, fn) {\n  // Don't want to add a cache object through getElData if not needed\n  if (!DomData.has(elem)) {\n    return;\n  }\n\n  var data = DomData.get(elem); // If no events exist, nothing to unbind\n\n  if (!data.handlers) {\n    return;\n  }\n\n  if (Array.isArray(type)) {\n    return _handleMultipleEvents(off, elem, type, fn);\n  } // Utility function\n\n\n  var removeType = function removeType(el, t) {\n    data.handlers[t] = [];\n\n    _cleanUpEvents(el, t);\n  }; // Are we removing all bound events?\n\n\n  if (type === undefined) {\n    for (var t in data.handlers) {\n      if (Object.prototype.hasOwnProperty.call(data.handlers || {}, t)) {\n        removeType(elem, t);\n      }\n    }\n\n    return;\n  }\n\n  var handlers = data.handlers[type]; // If no handlers exist, nothing to unbind\n\n  if (!handlers) {\n    return;\n  } // If no listener was provided, remove all listeners for type\n\n\n  if (!fn) {\n    removeType(elem, type);\n    return;\n  } // We're only removing a single handler\n\n\n  if (fn.guid) {\n    for (var n = 0; n < handlers.length; n++) {\n      if (handlers[n].guid === fn.guid) {\n        handlers.splice(n--, 1);\n      }\n    }\n  }\n\n  _cleanUpEvents(elem, type);\n}\n/**\n * Trigger an event for an element\n *\n * @param {Element|Object} elem\n *        Element to trigger an event on\n *\n * @param {EventTarget~Event|string} event\n *        A string (the type) or an event object with a type attribute\n *\n * @param {Object} [hash]\n *        data hash to pass along with the event\n *\n * @return {boolean|undefined}\n *         Returns the opposite of `defaultPrevented` if default was\n *         prevented. Otherwise, returns `undefined`\n */\n\nfunction trigger(elem, event, hash) {\n  // Fetches element data and a reference to the parent (for bubbling).\n  // Don't want to add a data object to cache for every parent,\n  // so checking hasElData first.\n  var elemData = DomData.has(elem) ? DomData.get(elem) : {};\n  var parent = elem.parentNode || elem.ownerDocument; // type = event.type || event,\n  // handler;\n  // If an event name was passed as a string, creates an event out of it\n\n  if (typeof event === 'string') {\n    event = {\n      type: event,\n      target: elem\n    };\n  } else if (!event.target) {\n    event.target = elem;\n  } // Normalizes the event properties.\n\n\n  event = fixEvent(event); // If the passed element has a dispatcher, executes the established handlers.\n\n  if (elemData.dispatcher) {\n    elemData.dispatcher.call(elem, event, hash);\n  } // Unless explicitly stopped or the event does not bubble (e.g. media events)\n  // recursively calls this function to bubble the event up the DOM.\n\n\n  if (parent && !event.isPropagationStopped() && event.bubbles === true) {\n    trigger.call(null, parent, event, hash); // If at the top of the DOM, triggers the default action unless disabled.\n  } else if (!parent && !event.defaultPrevented && event.target && event.target[event.type]) {\n    if (!DomData.has(event.target)) {\n      DomData.set(event.target, {});\n    }\n\n    var targetData = DomData.get(event.target); // Checks if the target has a default action for this event.\n\n    if (event.target[event.type]) {\n      // Temporarily disables event dispatching on the target as we have already executed the handler.\n      targetData.disabled = true; // Executes the default action.\n\n      if (typeof event.target[event.type] === 'function') {\n        event.target[event.type]();\n      } // Re-enables event dispatching.\n\n\n      targetData.disabled = false;\n    }\n  } // Inform the triggerer if the default was prevented by returning false\n\n\n  return !event.defaultPrevented;\n}\n/**\n * Trigger a listener only once for an event.\n *\n * @param {Element|Object} elem\n *        Element or object to bind to.\n *\n * @param {string|string[]} type\n *        Name/type of event\n *\n * @param {Event~EventListener} fn\n *        Event listener function\n */\n\nfunction one(elem, type, fn) {\n  if (Array.isArray(type)) {\n    return _handleMultipleEvents(one, elem, type, fn);\n  }\n\n  var func = function func() {\n    off(elem, type, func);\n    fn.apply(this, arguments);\n  }; // copy the guid to the new function so it can removed using the original function's ID\n\n\n  func.guid = fn.guid = fn.guid || newGUID();\n  on(elem, type, func);\n}\n/**\n * Trigger a listener only once and then turn if off for all\n * configured events\n *\n * @param {Element|Object} elem\n *        Element or object to bind to.\n *\n * @param {string|string[]} type\n *        Name/type of event\n *\n * @param {Event~EventListener} fn\n *        Event listener function\n */\n\nfunction any(elem, type, fn) {\n  var func = function func() {\n    off(elem, type, func);\n    fn.apply(this, arguments);\n  }; // copy the guid to the new function so it can removed using the original function's ID\n\n\n  func.guid = fn.guid = fn.guid || newGUID(); // multiple ons, but one off for everything\n\n  on(elem, type, func);\n}\n\nvar Events = /*#__PURE__*/Object.freeze({\n  __proto__: null,\n  fixEvent: fixEvent,\n  on: on,\n  off: off,\n  trigger: trigger,\n  one: one,\n  any: any\n});\n\n/**\n * @file fn.js\n * @module fn\n */\nvar UPDATE_REFRESH_INTERVAL = 30;\n/**\n * Bind (a.k.a proxy or context). A simple method for changing the context of\n * a function.\n *\n * It also stores a unique id on the function so it can be easily removed from\n * events.\n *\n * @function\n * @param    {Mixed} context\n *           The object to bind as scope.\n *\n * @param    {Function} fn\n *           The function to be bound to a scope.\n *\n * @param    {number} [uid]\n *           An optional unique ID for the function to be set\n *\n * @return   {Function}\n *           The new function that will be bound into the context given\n */\n\nvar bind = function bind(context, fn, uid) {\n  // Make sure the function has a unique ID\n  if (!fn.guid) {\n    fn.guid = newGUID();\n  } // Create the new function that changes the context\n\n\n  var bound = fn.bind(context); // Allow for the ability to individualize this function\n  // Needed in the case where multiple objects might share the same prototype\n  // IF both items add an event listener with the same function, then you try to remove just one\n  // it will remove both because they both have the same guid.\n  // when using this, you need to use the bind method when you remove the listener as well.\n  // currently used in text tracks\n\n  bound.guid = uid ? uid + '_' + fn.guid : fn.guid;\n  return bound;\n};\n/**\n * Wraps the given function, `fn`, with a new function that only invokes `fn`\n * at most once per every `wait` milliseconds.\n *\n * @function\n * @param    {Function} fn\n *           The function to be throttled.\n *\n * @param    {number}   wait\n *           The number of milliseconds by which to throttle.\n *\n * @return   {Function}\n */\n\nvar throttle = function throttle(fn, wait) {\n  var last = window.performance.now();\n\n  var throttled = function throttled() {\n    var now = window.performance.now();\n\n    if (now - last >= wait) {\n      fn.apply(void 0, arguments);\n      last = now;\n    }\n  };\n\n  return throttled;\n};\n/**\n * Creates a debounced function that delays invoking `func` until after `wait`\n * milliseconds have elapsed since the last time the debounced function was\n * invoked.\n *\n * Inspired by lodash and underscore implementations.\n *\n * @function\n * @param    {Function} func\n *           The function to wrap with debounce behavior.\n *\n * @param    {number} wait\n *           The number of milliseconds to wait after the last invocation.\n *\n * @param    {boolean} [immediate]\n *           Whether or not to invoke the function immediately upon creation.\n *\n * @param    {Object} [context=window]\n *           The \"context\" in which the debounced function should debounce. For\n *           example, if this function should be tied to a Video.js player,\n *           the player can be passed here. Alternatively, defaults to the\n *           global `window` object.\n *\n * @return   {Function}\n *           A debounced function.\n */\n\nvar debounce = function debounce(func, wait, immediate, context) {\n  if (context === void 0) {\n    context = window;\n  }\n\n  var timeout;\n\n  var cancel = function cancel() {\n    context.clearTimeout(timeout);\n    timeout = null;\n  };\n  /* eslint-disable consistent-this */\n\n\n  var debounced = function debounced() {\n    var self = this;\n    var args = arguments;\n\n    var _later = function later() {\n      timeout = null;\n      _later = null;\n\n      if (!immediate) {\n        func.apply(self, args);\n      }\n    };\n\n    if (!timeout && immediate) {\n      func.apply(self, args);\n    }\n\n    context.clearTimeout(timeout);\n    timeout = context.setTimeout(_later, wait);\n  };\n  /* eslint-enable consistent-this */\n\n\n  debounced.cancel = cancel;\n  return debounced;\n};\n\n/**\n * @file src/js/event-target.js\n */\n/**\n * `EventTarget` is a class that can have the same API as the DOM `EventTarget`. It\n * adds shorthand functions that wrap around lengthy functions. For example:\n * the `on` function is a wrapper around `addEventListener`.\n *\n * @see [EventTarget Spec]{@link https://www.w3.org/TR/DOM-Level-2-Events/events.html#Events-EventTarget}\n * @class EventTarget\n */\n\nvar EventTarget$2 = function EventTarget() {};\n/**\n * A Custom DOM event.\n *\n * @typedef {Object} EventTarget~Event\n * @see [Properties]{@link https://developer.mozilla.org/en-US/docs/Web/API/CustomEvent}\n */\n\n/**\n * All event listeners should follow the following format.\n *\n * @callback EventTarget~EventListener\n * @this {EventTarget}\n *\n * @param {EventTarget~Event} event\n *        the event that triggered this function\n *\n * @param {Object} [hash]\n *        hash of data sent during the event\n */\n\n/**\n * An object containing event names as keys and booleans as values.\n *\n * > NOTE: If an event name is set to a true value here {@link EventTarget#trigger}\n *         will have extra functionality. See that function for more information.\n *\n * @property EventTarget.prototype.allowedEvents_\n * @private\n */\n\n\nEventTarget$2.prototype.allowedEvents_ = {};\n/**\n * Adds an `event listener` to an instance of an `EventTarget`. An `event listener` is a\n * function that will get called when an event with a certain name gets triggered.\n *\n * @param {string|string[]} type\n *        An event name or an array of event names.\n *\n * @param {EventTarget~EventListener} fn\n *        The function to call with `EventTarget`s\n */\n\nEventTarget$2.prototype.on = function (type, fn) {\n  // Remove the addEventListener alias before calling Events.on\n  // so we don't get into an infinite type loop\n  var ael = this.addEventListener;\n\n  this.addEventListener = function () {};\n\n  on(this, type, fn);\n  this.addEventListener = ael;\n};\n/**\n * An alias of {@link EventTarget#on}. Allows `EventTarget` to mimic\n * the standard DOM API.\n *\n * @function\n * @see {@link EventTarget#on}\n */\n\n\nEventTarget$2.prototype.addEventListener = EventTarget$2.prototype.on;\n/**\n * Removes an `event listener` for a specific event from an instance of `EventTarget`.\n * This makes it so that the `event listener` will no longer get called when the\n * named event happens.\n *\n * @param {string|string[]} type\n *        An event name or an array of event names.\n *\n * @param {EventTarget~EventListener} fn\n *        The function to remove.\n */\n\nEventTarget$2.prototype.off = function (type, fn) {\n  off(this, type, fn);\n};\n/**\n * An alias of {@link EventTarget#off}. Allows `EventTarget` to mimic\n * the standard DOM API.\n *\n * @function\n * @see {@link EventTarget#off}\n */\n\n\nEventTarget$2.prototype.removeEventListener = EventTarget$2.prototype.off;\n/**\n * This function will add an `event listener` that gets triggered only once. After the\n * first trigger it will get removed. This is like adding an `event listener`\n * with {@link EventTarget#on} that calls {@link EventTarget#off} on itself.\n *\n * @param {string|string[]} type\n *        An event name or an array of event names.\n *\n * @param {EventTarget~EventListener} fn\n *        The function to be called once for each event name.\n */\n\nEventTarget$2.prototype.one = function (type, fn) {\n  // Remove the addEventListener aliasing Events.on\n  // so we don't get into an infinite type loop\n  var ael = this.addEventListener;\n\n  this.addEventListener = function () {};\n\n  one(this, type, fn);\n  this.addEventListener = ael;\n};\n\nEventTarget$2.prototype.any = function (type, fn) {\n  // Remove the addEventListener aliasing Events.on\n  // so we don't get into an infinite type loop\n  var ael = this.addEventListener;\n\n  this.addEventListener = function () {};\n\n  any(this, type, fn);\n  this.addEventListener = ael;\n};\n/**\n * This function causes an event to happen. This will then cause any `event listeners`\n * that are waiting for that event, to get called. If there are no `event listeners`\n * for an event then nothing will happen.\n *\n * If the name of the `Event` that is being triggered is in `EventTarget.allowedEvents_`.\n * Trigger will also call the `on` + `uppercaseEventName` function.\n *\n * Example:\n * 'click' is in `EventTarget.allowedEvents_`, so, trigger will attempt to call\n * `onClick` if it exists.\n *\n * @param {string|EventTarget~Event|Object} event\n *        The name of the event, an `Event`, or an object with a key of type set to\n *        an event name.\n */\n\n\nEventTarget$2.prototype.trigger = function (event) {\n  var type = event.type || event; // deprecation\n  // In a future version we should default target to `this`\n  // similar to how we default the target to `elem` in\n  // `Events.trigger`. Right now the default `target` will be\n  // `document` due to the `Event.fixEvent` call.\n\n  if (typeof event === 'string') {\n    event = {\n      type: type\n    };\n  }\n\n  event = fixEvent(event);\n\n  if (this.allowedEvents_[type] && this['on' + type]) {\n    this['on' + type](event);\n  }\n\n  trigger(this, event);\n};\n/**\n * An alias of {@link EventTarget#trigger}. Allows `EventTarget` to mimic\n * the standard DOM API.\n *\n * @function\n * @see {@link EventTarget#trigger}\n */\n\n\nEventTarget$2.prototype.dispatchEvent = EventTarget$2.prototype.trigger;\nvar EVENT_MAP;\n\nEventTarget$2.prototype.queueTrigger = function (event) {\n  var _this = this;\n\n  // only set up EVENT_MAP if it'll be used\n  if (!EVENT_MAP) {\n    EVENT_MAP = new Map();\n  }\n\n  var type = event.type || event;\n  var map = EVENT_MAP.get(this);\n\n  if (!map) {\n    map = new Map();\n    EVENT_MAP.set(this, map);\n  }\n\n  var oldTimeout = map.get(type);\n  map[\"delete\"](type);\n  window.clearTimeout(oldTimeout);\n  var timeout = window.setTimeout(function () {\n    // if we cleared out all timeouts for the current target, delete its map\n    if (map.size === 0) {\n      map = null;\n      EVENT_MAP[\"delete\"](_this);\n    }\n\n    _this.trigger(event);\n  }, 0);\n  map.set(type, timeout);\n};\n\n/**\n * @file mixins/evented.js\n * @module evented\n */\n\nvar objName = function objName(obj) {\n  if (typeof obj.name === 'function') {\n    return obj.name();\n  }\n\n  if (typeof obj.name === 'string') {\n    return obj.name;\n  }\n\n  if (obj.name_) {\n    return obj.name_;\n  }\n\n  if (obj.constructor && obj.constructor.name) {\n    return obj.constructor.name;\n  }\n\n  return typeof obj;\n};\n/**\n * Returns whether or not an object has had the evented mixin applied.\n *\n * @param  {Object} object\n *         An object to test.\n *\n * @return {boolean}\n *         Whether or not the object appears to be evented.\n */\n\n\nvar isEvented = function isEvented(object) {\n  return object instanceof EventTarget$2 || !!object.eventBusEl_ && ['on', 'one', 'off', 'trigger'].every(function (k) {\n    return typeof object[k] === 'function';\n  });\n};\n/**\n * Adds a callback to run after the evented mixin applied.\n *\n * @param  {Object} object\n *         An object to Add\n * @param  {Function} callback\n *         The callback to run.\n */\n\n\nvar addEventedCallback = function addEventedCallback(target, callback) {\n  if (isEvented(target)) {\n    callback();\n  } else {\n    if (!target.eventedCallbacks) {\n      target.eventedCallbacks = [];\n    }\n\n    target.eventedCallbacks.push(callback);\n  }\n};\n/**\n * Whether a value is a valid event type - non-empty string or array.\n *\n * @private\n * @param  {string|Array} type\n *         The type value to test.\n *\n * @return {boolean}\n *         Whether or not the type is a valid event type.\n */\n\n\nvar isValidEventType = function isValidEventType(type) {\n  return (// The regex here verifies that the `type` contains at least one non-\n    // whitespace character.\n    typeof type === 'string' && /\\S/.test(type) || Array.isArray(type) && !!type.length\n  );\n};\n/**\n * Validates a value to determine if it is a valid event target. Throws if not.\n *\n * @private\n * @throws {Error}\n *         If the target does not appear to be a valid event target.\n *\n * @param  {Object} target\n *         The object to test.\n *\n * @param  {Object} obj\n *         The evented object we are validating for\n *\n * @param  {string} fnName\n *         The name of the evented mixin function that called this.\n */\n\n\nvar validateTarget = function validateTarget(target, obj, fnName) {\n  if (!target || !target.nodeName && !isEvented(target)) {\n    throw new Error(\"Invalid target for \" + objName(obj) + \"#\" + fnName + \"; must be a DOM node or evented object.\");\n  }\n};\n/**\n * Validates a value to determine if it is a valid event target. Throws if not.\n *\n * @private\n * @throws {Error}\n *         If the type does not appear to be a valid event type.\n *\n * @param  {string|Array} type\n *         The type to test.\n *\n * @param  {Object} obj\n*         The evented object we are validating for\n *\n * @param  {string} fnName\n *         The name of the evented mixin function that called this.\n */\n\n\nvar validateEventType = function validateEventType(type, obj, fnName) {\n  if (!isValidEventType(type)) {\n    throw new Error(\"Invalid event type for \" + objName(obj) + \"#\" + fnName + \"; must be a non-empty string or array.\");\n  }\n};\n/**\n * Validates a value to determine if it is a valid listener. Throws if not.\n *\n * @private\n * @throws {Error}\n *         If the listener is not a function.\n *\n * @param  {Function} listener\n *         The listener to test.\n *\n * @param  {Object} obj\n *         The evented object we are validating for\n *\n * @param  {string} fnName\n *         The name of the evented mixin function that called this.\n */\n\n\nvar validateListener = function validateListener(listener, obj, fnName) {\n  if (typeof listener !== 'function') {\n    throw new Error(\"Invalid listener for \" + objName(obj) + \"#\" + fnName + \"; must be a function.\");\n  }\n};\n/**\n * Takes an array of arguments given to `on()` or `one()`, validates them, and\n * normalizes them into an object.\n *\n * @private\n * @param  {Object} self\n *         The evented object on which `on()` or `one()` was called. This\n *         object will be bound as the `this` value for the listener.\n *\n * @param  {Array} args\n *         An array of arguments passed to `on()` or `one()`.\n *\n * @param  {string} fnName\n *         The name of the evented mixin function that called this.\n *\n * @return {Object}\n *         An object containing useful values for `on()` or `one()` calls.\n */\n\n\nvar normalizeListenArgs = function normalizeListenArgs(self, args, fnName) {\n  // If the number of arguments is less than 3, the target is always the\n  // evented object itself.\n  var isTargetingSelf = args.length < 3 || args[0] === self || args[0] === self.eventBusEl_;\n  var target;\n  var type;\n  var listener;\n\n  if (isTargetingSelf) {\n    target = self.eventBusEl_; // Deal with cases where we got 3 arguments, but we are still listening to\n    // the evented object itself.\n\n    if (args.length >= 3) {\n      args.shift();\n    }\n\n    type = args[0];\n    listener = args[1];\n  } else {\n    target = args[0];\n    type = args[1];\n    listener = args[2];\n  }\n\n  validateTarget(target, self, fnName);\n  validateEventType(type, self, fnName);\n  validateListener(listener, self, fnName);\n  listener = bind(self, listener);\n  return {\n    isTargetingSelf: isTargetingSelf,\n    target: target,\n    type: type,\n    listener: listener\n  };\n};\n/**\n * Adds the listener to the event type(s) on the target, normalizing for\n * the type of target.\n *\n * @private\n * @param  {Element|Object} target\n *         A DOM node or evented object.\n *\n * @param  {string} method\n *         The event binding method to use (\"on\" or \"one\").\n *\n * @param  {string|Array} type\n *         One or more event type(s).\n *\n * @param  {Function} listener\n *         A listener function.\n */\n\n\nvar listen = function listen(target, method, type, listener) {\n  validateTarget(target, target, method);\n\n  if (target.nodeName) {\n    Events[method](target, type, listener);\n  } else {\n    target[method](type, listener);\n  }\n};\n/**\n * Contains methods that provide event capabilities to an object which is passed\n * to {@link module:evented|evented}.\n *\n * @mixin EventedMixin\n */\n\n\nvar EventedMixin = {\n  /**\n   * Add a listener to an event (or events) on this object or another evented\n   * object.\n   *\n   * @param  {string|Array|Element|Object} targetOrType\n   *         If this is a string or array, it represents the event type(s)\n   *         that will trigger the listener.\n   *\n   *         Another evented object can be passed here instead, which will\n   *         cause the listener to listen for events on _that_ object.\n   *\n   *         In either case, the listener's `this` value will be bound to\n   *         this object.\n   *\n   * @param  {string|Array|Function} typeOrListener\n   *         If the first argument was a string or array, this should be the\n   *         listener function. Otherwise, this is a string or array of event\n   *         type(s).\n   *\n   * @param  {Function} [listener]\n   *         If the first argument was another evented object, this will be\n   *         the listener function.\n   */\n  on: function on() {\n    var _this = this;\n\n    for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {\n      args[_key] = arguments[_key];\n    }\n\n    var _normalizeListenArgs = normalizeListenArgs(this, args, 'on'),\n        isTargetingSelf = _normalizeListenArgs.isTargetingSelf,\n        target = _normalizeListenArgs.target,\n        type = _normalizeListenArgs.type,\n        listener = _normalizeListenArgs.listener;\n\n    listen(target, 'on', type, listener); // If this object is listening to another evented object.\n\n    if (!isTargetingSelf) {\n      // If this object is disposed, remove the listener.\n      var removeListenerOnDispose = function removeListenerOnDispose() {\n        return _this.off(target, type, listener);\n      }; // Use the same function ID as the listener so we can remove it later it\n      // using the ID of the original listener.\n\n\n      removeListenerOnDispose.guid = listener.guid; // Add a listener to the target's dispose event as well. This ensures\n      // that if the target is disposed BEFORE this object, we remove the\n      // removal listener that was just added. Otherwise, we create a memory leak.\n\n      var removeRemoverOnTargetDispose = function removeRemoverOnTargetDispose() {\n        return _this.off('dispose', removeListenerOnDispose);\n      }; // Use the same function ID as the listener so we can remove it later\n      // it using the ID of the original listener.\n\n\n      removeRemoverOnTargetDispose.guid = listener.guid;\n      listen(this, 'on', 'dispose', removeListenerOnDispose);\n      listen(target, 'on', 'dispose', removeRemoverOnTargetDispose);\n    }\n  },\n\n  /**\n   * Add a listener to an event (or events) on this object or another evented\n   * object. The listener will be called once per event and then removed.\n   *\n   * @param  {string|Array|Element|Object} targetOrType\n   *         If this is a string or array, it represents the event type(s)\n   *         that will trigger the listener.\n   *\n   *         Another evented object can be passed here instead, which will\n   *         cause the listener to listen for events on _that_ object.\n   *\n   *         In either case, the listener's `this` value will be bound to\n   *         this object.\n   *\n   * @param  {string|Array|Function} typeOrListener\n   *         If the first argument was a string or array, this should be the\n   *         listener function. Otherwise, this is a string or array of event\n   *         type(s).\n   *\n   * @param  {Function} [listener]\n   *         If the first argument was another evented object, this will be\n   *         the listener function.\n   */\n  one: function one() {\n    var _this2 = this;\n\n    for (var _len2 = arguments.length, args = new Array(_len2), _key2 = 0; _key2 < _len2; _key2++) {\n      args[_key2] = arguments[_key2];\n    }\n\n    var _normalizeListenArgs2 = normalizeListenArgs(this, args, 'one'),\n        isTargetingSelf = _normalizeListenArgs2.isTargetingSelf,\n        target = _normalizeListenArgs2.target,\n        type = _normalizeListenArgs2.type,\n        listener = _normalizeListenArgs2.listener; // Targeting this evented object.\n\n\n    if (isTargetingSelf) {\n      listen(target, 'one', type, listener); // Targeting another evented object.\n    } else {\n      // TODO: This wrapper is incorrect! It should only\n      //       remove the wrapper for the event type that called it.\n      //       Instead all listners are removed on the first trigger!\n      //       see https://github.com/videojs/video.js/issues/5962\n      var wrapper = function wrapper() {\n        _this2.off(target, type, wrapper);\n\n        for (var _len3 = arguments.length, largs = new Array(_len3), _key3 = 0; _key3 < _len3; _key3++) {\n          largs[_key3] = arguments[_key3];\n        }\n\n        listener.apply(null, largs);\n      }; // Use the same function ID as the listener so we can remove it later\n      // it using the ID of the original listener.\n\n\n      wrapper.guid = listener.guid;\n      listen(target, 'one', type, wrapper);\n    }\n  },\n\n  /**\n   * Add a listener to an event (or events) on this object or another evented\n   * object. The listener will only be called once for the first event that is triggered\n   * then removed.\n   *\n   * @param  {string|Array|Element|Object} targetOrType\n   *         If this is a string or array, it represents the event type(s)\n   *         that will trigger the listener.\n   *\n   *         Another evented object can be passed here instead, which will\n   *         cause the listener to listen for events on _that_ object.\n   *\n   *         In either case, the listener's `this` value will be bound to\n   *         this object.\n   *\n   * @param  {string|Array|Function} typeOrListener\n   *         If the first argument was a string or array, this should be the\n   *         listener function. Otherwise, this is a string or array of event\n   *         type(s).\n   *\n   * @param  {Function} [listener]\n   *         If the first argument was another evented object, this will be\n   *         the listener function.\n   */\n  any: function any() {\n    var _this3 = this;\n\n    for (var _len4 = arguments.length, args = new Array(_len4), _key4 = 0; _key4 < _len4; _key4++) {\n      args[_key4] = arguments[_key4];\n    }\n\n    var _normalizeListenArgs3 = normalizeListenArgs(this, args, 'any'),\n        isTargetingSelf = _normalizeListenArgs3.isTargetingSelf,\n        target = _normalizeListenArgs3.target,\n        type = _normalizeListenArgs3.type,\n        listener = _normalizeListenArgs3.listener; // Targeting this evented object.\n\n\n    if (isTargetingSelf) {\n      listen(target, 'any', type, listener); // Targeting another evented object.\n    } else {\n      var wrapper = function wrapper() {\n        _this3.off(target, type, wrapper);\n\n        for (var _len5 = arguments.length, largs = new Array(_len5), _key5 = 0; _key5 < _len5; _key5++) {\n          largs[_key5] = arguments[_key5];\n        }\n\n        listener.apply(null, largs);\n      }; // Use the same function ID as the listener so we can remove it later\n      // it using the ID of the original listener.\n\n\n      wrapper.guid = listener.guid;\n      listen(target, 'any', type, wrapper);\n    }\n  },\n\n  /**\n   * Removes listener(s) from event(s) on an evented object.\n   *\n   * @param  {string|Array|Element|Object} [targetOrType]\n   *         If this is a string or array, it represents the event type(s).\n   *\n   *         Another evented object can be passed here instead, in which case\n   *         ALL 3 arguments are _required_.\n   *\n   * @param  {string|Array|Function} [typeOrListener]\n   *         If the first argument was a string or array, this may be the\n   *         listener function. Otherwise, this is a string or array of event\n   *         type(s).\n   *\n   * @param  {Function} [listener]\n   *         If the first argument was another evented object, this will be\n   *         the listener function; otherwise, _all_ listeners bound to the\n   *         event type(s) will be removed.\n   */\n  off: function off$1(targetOrType, typeOrListener, listener) {\n    // Targeting this evented object.\n    if (!targetOrType || isValidEventType(targetOrType)) {\n      off(this.eventBusEl_, targetOrType, typeOrListener); // Targeting another evented object.\n    } else {\n      var target = targetOrType;\n      var type = typeOrListener; // Fail fast and in a meaningful way!\n\n      validateTarget(target, this, 'off');\n      validateEventType(type, this, 'off');\n      validateListener(listener, this, 'off'); // Ensure there's at least a guid, even if the function hasn't been used\n\n      listener = bind(this, listener); // Remove the dispose listener on this evented object, which was given\n      // the same guid as the event listener in on().\n\n      this.off('dispose', listener);\n\n      if (target.nodeName) {\n        off(target, type, listener);\n        off(target, 'dispose', listener);\n      } else if (isEvented(target)) {\n        target.off(type, listener);\n        target.off('dispose', listener);\n      }\n    }\n  },\n\n  /**\n   * Fire an event on this evented object, causing its listeners to be called.\n   *\n   * @param   {string|Object} event\n   *          An event type or an object with a type property.\n   *\n   * @param   {Object} [hash]\n   *          An additional object to pass along to listeners.\n   *\n   * @return {boolean}\n   *          Whether or not the default behavior was prevented.\n   */\n  trigger: function trigger$1(event, hash) {\n    validateTarget(this.eventBusEl_, this, 'trigger');\n    var type = event && typeof event !== 'string' ? event.type : event;\n\n    if (!isValidEventType(type)) {\n      var error = \"Invalid event type for \" + objName(this) + \"#trigger; \" + 'must be a non-empty string or object with a type key that has a non-empty value.';\n\n      if (event) {\n        (this.log || log$1).error(error);\n      } else {\n        throw new Error(error);\n      }\n    }\n\n    return trigger(this.eventBusEl_, event, hash);\n  }\n};\n/**\n * Applies {@link module:evented~EventedMixin|EventedMixin} to a target object.\n *\n * @param  {Object} target\n *         The object to which to add event methods.\n *\n * @param  {Object} [options={}]\n *         Options for customizing the mixin behavior.\n *\n * @param  {string} [options.eventBusKey]\n *         By default, adds a `eventBusEl_` DOM element to the target object,\n *         which is used as an event bus. If the target object already has a\n *         DOM element that should be used, pass its key here.\n *\n * @return {Object}\n *         The target object.\n */\n\nfunction evented(target, options) {\n  if (options === void 0) {\n    options = {};\n  }\n\n  var _options = options,\n      eventBusKey = _options.eventBusKey; // Set or create the eventBusEl_.\n\n  if (eventBusKey) {\n    if (!target[eventBusKey].nodeName) {\n      throw new Error(\"The eventBusKey \\\"\" + eventBusKey + \"\\\" does not refer to an element.\");\n    }\n\n    target.eventBusEl_ = target[eventBusKey];\n  } else {\n    target.eventBusEl_ = createEl('span', {\n      className: 'vjs-event-bus'\n    });\n  }\n\n  assign(target, EventedMixin);\n\n  if (target.eventedCallbacks) {\n    target.eventedCallbacks.forEach(function (callback) {\n      callback();\n    });\n  } // When any evented object is disposed, it removes all its listeners.\n\n\n  target.on('dispose', function () {\n    target.off();\n    [target, target.el_, target.eventBusEl_].forEach(function (val) {\n      if (val && DomData.has(val)) {\n        DomData[\"delete\"](val);\n      }\n    });\n    window.setTimeout(function () {\n      target.eventBusEl_ = null;\n    }, 0);\n  });\n  return target;\n}\n\n/**\n * @file mixins/stateful.js\n * @module stateful\n */\n/**\n * Contains methods that provide statefulness to an object which is passed\n * to {@link module:stateful}.\n *\n * @mixin StatefulMixin\n */\n\nvar StatefulMixin = {\n  /**\n   * A hash containing arbitrary keys and values representing the state of\n   * the object.\n   *\n   * @type {Object}\n   */\n  state: {},\n\n  /**\n   * Set the state of an object by mutating its\n   * {@link module:stateful~StatefulMixin.state|state} object in place.\n   *\n   * @fires   module:stateful~StatefulMixin#statechanged\n   * @param   {Object|Function} stateUpdates\n   *          A new set of properties to shallow-merge into the plugin state.\n   *          Can be a plain object or a function returning a plain object.\n   *\n   * @return {Object|undefined}\n   *          An object containing changes that occurred. If no changes\n   *          occurred, returns `undefined`.\n   */\n  setState: function setState(stateUpdates) {\n    var _this = this;\n\n    // Support providing the `stateUpdates` state as a function.\n    if (typeof stateUpdates === 'function') {\n      stateUpdates = stateUpdates();\n    }\n\n    var changes;\n    each(stateUpdates, function (value, key) {\n      // Record the change if the value is different from what's in the\n      // current state.\n      if (_this.state[key] !== value) {\n        changes = changes || {};\n        changes[key] = {\n          from: _this.state[key],\n          to: value\n        };\n      }\n\n      _this.state[key] = value;\n    }); // Only trigger \"statechange\" if there were changes AND we have a trigger\n    // function. This allows us to not require that the target object be an\n    // evented object.\n\n    if (changes && isEvented(this)) {\n      /**\n       * An event triggered on an object that is both\n       * {@link module:stateful|stateful} and {@link module:evented|evented}\n       * indicating that its state has changed.\n       *\n       * @event    module:stateful~StatefulMixin#statechanged\n       * @type     {Object}\n       * @property {Object} changes\n       *           A hash containing the properties that were changed and\n       *           the values they were changed `from` and `to`.\n       */\n      this.trigger({\n        changes: changes,\n        type: 'statechanged'\n      });\n    }\n\n    return changes;\n  }\n};\n/**\n * Applies {@link module:stateful~StatefulMixin|StatefulMixin} to a target\n * object.\n *\n * If the target object is {@link module:evented|evented} and has a\n * `handleStateChanged` method, that method will be automatically bound to the\n * `statechanged` event on itself.\n *\n * @param   {Object} target\n *          The object to be made stateful.\n *\n * @param   {Object} [defaultState]\n *          A default set of properties to populate the newly-stateful object's\n *          `state` property.\n *\n * @return {Object}\n *          Returns the `target`.\n */\n\nfunction stateful(target, defaultState) {\n  assign(target, StatefulMixin); // This happens after the mixing-in because we need to replace the `state`\n  // added in that step.\n\n  target.state = assign({}, target.state, defaultState); // Auto-bind the `handleStateChanged` method of the target object if it exists.\n\n  if (typeof target.handleStateChanged === 'function' && isEvented(target)) {\n    target.on('statechanged', target.handleStateChanged);\n  }\n\n  return target;\n}\n\n/**\n * @file string-cases.js\n * @module to-lower-case\n */\n\n/**\n * Lowercase the first letter of a string.\n *\n * @param {string} string\n *        String to be lowercased\n *\n * @return {string}\n *         The string with a lowercased first letter\n */\nvar toLowerCase = function toLowerCase(string) {\n  if (typeof string !== 'string') {\n    return string;\n  }\n\n  return string.replace(/./, function (w) {\n    return w.toLowerCase();\n  });\n};\n/**\n * Uppercase the first letter of a string.\n *\n * @param {string} string\n *        String to be uppercased\n *\n * @return {string}\n *         The string with an uppercased first letter\n */\n\nvar toTitleCase$1 = function toTitleCase(string) {\n  if (typeof string !== 'string') {\n    return string;\n  }\n\n  return string.replace(/./, function (w) {\n    return w.toUpperCase();\n  });\n};\n/**\n * Compares the TitleCase versions of the two strings for equality.\n *\n * @param {string} str1\n *        The first string to compare\n *\n * @param {string} str2\n *        The second string to compare\n *\n * @return {boolean}\n *         Whether the TitleCase versions of the strings are equal\n */\n\nvar titleCaseEquals = function titleCaseEquals(str1, str2) {\n  return toTitleCase$1(str1) === toTitleCase$1(str2);\n};\n\n/**\n * @file merge-options.js\n * @module merge-options\n */\n/**\n * Merge two objects recursively.\n *\n * Performs a deep merge like\n * {@link https://lodash.com/docs/4.17.10#merge|lodash.merge}, but only merges\n * plain objects (not arrays, elements, or anything else).\n *\n * Non-plain object values will be copied directly from the right-most\n * argument.\n *\n * @static\n * @param   {Object[]} sources\n *          One or more objects to merge into a new object.\n *\n * @return {Object}\n *          A new object that is the merged result of all sources.\n */\n\nfunction mergeOptions$3() {\n  var result = {};\n\n  for (var _len = arguments.length, sources = new Array(_len), _key = 0; _key < _len; _key++) {\n    sources[_key] = arguments[_key];\n  }\n\n  sources.forEach(function (source) {\n    if (!source) {\n      return;\n    }\n\n    each(source, function (value, key) {\n      if (!isPlain(value)) {\n        result[key] = value;\n        return;\n      }\n\n      if (!isPlain(result[key])) {\n        result[key] = {};\n      }\n\n      result[key] = mergeOptions$3(result[key], value);\n    });\n  });\n  return result;\n}\n\nvar MapSham = /*#__PURE__*/function () {\n  function MapSham() {\n    this.map_ = {};\n  }\n\n  var _proto = MapSham.prototype;\n\n  _proto.has = function has(key) {\n    return key in this.map_;\n  };\n\n  _proto[\"delete\"] = function _delete(key) {\n    var has = this.has(key);\n    delete this.map_[key];\n    return has;\n  };\n\n  _proto.set = function set(key, value) {\n    this.map_[key] = value;\n    return this;\n  };\n\n  _proto.forEach = function forEach(callback, thisArg) {\n    for (var key in this.map_) {\n      callback.call(thisArg, this.map_[key], key, this);\n    }\n  };\n\n  return MapSham;\n}();\n\nvar Map$1 = window.Map ? window.Map : MapSham;\n\nvar SetSham = /*#__PURE__*/function () {\n  function SetSham() {\n    this.set_ = {};\n  }\n\n  var _proto = SetSham.prototype;\n\n  _proto.has = function has(key) {\n    return key in this.set_;\n  };\n\n  _proto[\"delete\"] = function _delete(key) {\n    var has = this.has(key);\n    delete this.set_[key];\n    return has;\n  };\n\n  _proto.add = function add(key) {\n    this.set_[key] = 1;\n    return this;\n  };\n\n  _proto.forEach = function forEach(callback, thisArg) {\n    for (var key in this.set_) {\n      callback.call(thisArg, key, key, this);\n    }\n  };\n\n  return SetSham;\n}();\n\nvar Set = window.Set ? window.Set : SetSham;\n\n/**\n * Player Component - Base class for all UI objects\n *\n * @file component.js\n */\n/**\n * Base class for all UI Components.\n * Components are UI objects which represent both a javascript object and an element\n * in the DOM. They can be children of other components, and can have\n * children themselves.\n *\n * Components can also use methods from {@link EventTarget}\n */\n\nvar Component$1 = /*#__PURE__*/function () {\n  /**\n   * A callback that is called when a component is ready. Does not have any\n   * paramters and any callback value will be ignored.\n   *\n   * @callback Component~ReadyCallback\n   * @this Component\n   */\n\n  /**\n   * Creates an instance of this class.\n   *\n   * @param {Player} player\n   *        The `Player` that this class should be attached to.\n   *\n   * @param {Object} [options]\n   *        The key/value store of player options.\n   *\n   * @param {Object[]} [options.children]\n   *        An array of children objects to intialize this component with. Children objects have\n   *        a name property that will be used if more than one component of the same type needs to be\n   *        added.\n   *\n   * @param {Component~ReadyCallback} [ready]\n   *        Function that gets called when the `Component` is ready.\n   */\n  function Component(player, options, ready) {\n    // The component might be the player itself and we can't pass `this` to super\n    if (!player && this.play) {\n      this.player_ = player = this; // eslint-disable-line\n    } else {\n      this.player_ = player;\n    }\n\n    this.isDisposed_ = false; // Hold the reference to the parent component via `addChild` method\n\n    this.parentComponent_ = null; // Make a copy of prototype.options_ to protect against overriding defaults\n\n    this.options_ = mergeOptions$3({}, this.options_); // Updated options with supplied options\n\n    options = this.options_ = mergeOptions$3(this.options_, options); // Get ID from options or options element if one is supplied\n\n    this.id_ = options.id || options.el && options.el.id; // If there was no ID from the options, generate one\n\n    if (!this.id_) {\n      // Don't require the player ID function in the case of mock players\n      var id = player && player.id && player.id() || 'no_player';\n      this.id_ = id + \"_component_\" + newGUID();\n    }\n\n    this.name_ = options.name || null; // Create element if one wasn't provided in options\n\n    if (options.el) {\n      this.el_ = options.el;\n    } else if (options.createEl !== false) {\n      this.el_ = this.createEl();\n    } // if evented is anything except false, we want to mixin in evented\n\n\n    if (options.evented !== false) {\n      // Make this an evented object and use `el_`, if available, as its event bus\n      evented(this, {\n        eventBusKey: this.el_ ? 'el_' : null\n      });\n      this.handleLanguagechange = this.handleLanguagechange.bind(this);\n      this.on(this.player_, 'languagechange', this.handleLanguagechange);\n    }\n\n    stateful(this, this.constructor.defaultState);\n    this.children_ = [];\n    this.childIndex_ = {};\n    this.childNameIndex_ = {};\n    this.setTimeoutIds_ = new Set();\n    this.setIntervalIds_ = new Set();\n    this.rafIds_ = new Set();\n    this.namedRafs_ = new Map$1();\n    this.clearingTimersOnDispose_ = false; // Add any child components in options\n\n    if (options.initChildren !== false) {\n      this.initChildren();\n    } // Don't want to trigger ready here or it will go before init is actually\n    // finished for all children that run this constructor\n\n\n    this.ready(ready);\n\n    if (options.reportTouchActivity !== false) {\n      this.enableTouchActivity();\n    }\n  }\n  /**\n   * Dispose of the `Component` and all child components.\n   *\n   * @fires Component#dispose\n   */\n\n\n  var _proto = Component.prototype;\n\n  _proto.dispose = function dispose() {\n    // Bail out if the component has already been disposed.\n    if (this.isDisposed_) {\n      return;\n    }\n\n    if (this.readyQueue_) {\n      this.readyQueue_.length = 0;\n    }\n    /**\n     * Triggered when a `Component` is disposed.\n     *\n     * @event Component#dispose\n     * @type {EventTarget~Event}\n     *\n     * @property {boolean} [bubbles=false]\n     *           set to false so that the dispose event does not\n     *           bubble up\n     */\n\n\n    this.trigger({\n      type: 'dispose',\n      bubbles: false\n    });\n    this.isDisposed_ = true; // Dispose all children.\n\n    if (this.children_) {\n      for (var i = this.children_.length - 1; i >= 0; i--) {\n        if (this.children_[i].dispose) {\n          this.children_[i].dispose();\n        }\n      }\n    } // Delete child references\n\n\n    this.children_ = null;\n    this.childIndex_ = null;\n    this.childNameIndex_ = null;\n    this.parentComponent_ = null;\n\n    if (this.el_) {\n      // Remove element from DOM\n      if (this.el_.parentNode) {\n        this.el_.parentNode.removeChild(this.el_);\n      }\n\n      this.el_ = null;\n    } // remove reference to the player after disposing of the element\n\n\n    this.player_ = null;\n  }\n  /**\n   * Determine whether or not this component has been disposed.\n   *\n   * @return {boolean}\n   *         If the component has been disposed, will be `true`. Otherwise, `false`.\n   */\n  ;\n\n  _proto.isDisposed = function isDisposed() {\n    return Boolean(this.isDisposed_);\n  }\n  /**\n   * Return the {@link Player} that the `Component` has attached to.\n   *\n   * @return {Player}\n   *         The player that this `Component` has attached to.\n   */\n  ;\n\n  _proto.player = function player() {\n    return this.player_;\n  }\n  /**\n   * Deep merge of options objects with new options.\n   * > Note: When both `obj` and `options` contain properties whose values are objects.\n   *         The two properties get merged using {@link module:mergeOptions}\n   *\n   * @param {Object} obj\n   *        The object that contains new options.\n   *\n   * @return {Object}\n   *         A new object of `this.options_` and `obj` merged together.\n   */\n  ;\n\n  _proto.options = function options(obj) {\n    if (!obj) {\n      return this.options_;\n    }\n\n    this.options_ = mergeOptions$3(this.options_, obj);\n    return this.options_;\n  }\n  /**\n   * Get the `Component`s DOM element\n   *\n   * @return {Element}\n   *         The DOM element for this `Component`.\n   */\n  ;\n\n  _proto.el = function el() {\n    return this.el_;\n  }\n  /**\n   * Create the `Component`s DOM element.\n   *\n   * @param {string} [tagName]\n   *        Element's DOM node type. e.g. 'div'\n   *\n   * @param {Object} [properties]\n   *        An object of properties that should be set.\n   *\n   * @param {Object} [attributes]\n   *        An object of attributes that should be set.\n   *\n   * @return {Element}\n   *         The element that gets created.\n   */\n  ;\n\n  _proto.createEl = function createEl$1(tagName, properties, attributes) {\n    return createEl(tagName, properties, attributes);\n  }\n  /**\n   * Localize a string given the string in english.\n   *\n   * If tokens are provided, it'll try and run a simple token replacement on the provided string.\n   * The tokens it looks for look like `{1}` with the index being 1-indexed into the tokens array.\n   *\n   * If a `defaultValue` is provided, it'll use that over `string`,\n   * if a value isn't found in provided language files.\n   * This is useful if you want to have a descriptive key for token replacement\n   * but have a succinct localized string and not require `en.json` to be included.\n   *\n   * Currently, it is used for the progress bar timing.\n   * ```js\n   * {\n   *   \"progress bar timing: currentTime={1} duration={2}\": \"{1} of {2}\"\n   * }\n   * ```\n   * It is then used like so:\n   * ```js\n   * this.localize('progress bar timing: currentTime={1} duration{2}',\n   *               [this.player_.currentTime(), this.player_.duration()],\n   *               '{1} of {2}');\n   * ```\n   *\n   * Which outputs something like: `01:23 of 24:56`.\n   *\n   *\n   * @param {string} string\n   *        The string to localize and the key to lookup in the language files.\n   * @param {string[]} [tokens]\n   *        If the current item has token replacements, provide the tokens here.\n   * @param {string} [defaultValue]\n   *        Defaults to `string`. Can be a default value to use for token replacement\n   *        if the lookup key is needed to be separate.\n   *\n   * @return {string}\n   *         The localized string or if no localization exists the english string.\n   */\n  ;\n\n  _proto.localize = function localize(string, tokens, defaultValue) {\n    if (defaultValue === void 0) {\n      defaultValue = string;\n    }\n\n    var code = this.player_.language && this.player_.language();\n    var languages = this.player_.languages && this.player_.languages();\n    var language = languages && languages[code];\n    var primaryCode = code && code.split('-')[0];\n    var primaryLang = languages && languages[primaryCode];\n    var localizedString = defaultValue;\n\n    if (language && language[string]) {\n      localizedString = language[string];\n    } else if (primaryLang && primaryLang[string]) {\n      localizedString = primaryLang[string];\n    }\n\n    if (tokens) {\n      localizedString = localizedString.replace(/\\{(\\d+)\\}/g, function (match, index) {\n        var value = tokens[index - 1];\n        var ret = value;\n\n        if (typeof value === 'undefined') {\n          ret = match;\n        }\n\n        return ret;\n      });\n    }\n\n    return localizedString;\n  }\n  /**\n   * Handles language change for the player in components. Should be overriden by sub-components.\n   *\n   * @abstract\n   */\n  ;\n\n  _proto.handleLanguagechange = function handleLanguagechange() {}\n  /**\n   * Return the `Component`s DOM element. This is where children get inserted.\n   * This will usually be the the same as the element returned in {@link Component#el}.\n   *\n   * @return {Element}\n   *         The content element for this `Component`.\n   */\n  ;\n\n  _proto.contentEl = function contentEl() {\n    return this.contentEl_ || this.el_;\n  }\n  /**\n   * Get this `Component`s ID\n   *\n   * @return {string}\n   *         The id of this `Component`\n   */\n  ;\n\n  _proto.id = function id() {\n    return this.id_;\n  }\n  /**\n   * Get the `Component`s name. The name gets used to reference the `Component`\n   * and is set during registration.\n   *\n   * @return {string}\n   *         The name of this `Component`.\n   */\n  ;\n\n  _proto.name = function name() {\n    return this.name_;\n  }\n  /**\n   * Get an array of all child components\n   *\n   * @return {Array}\n   *         The children\n   */\n  ;\n\n  _proto.children = function children() {\n    return this.children_;\n  }\n  /**\n   * Returns the child `Component` with the given `id`.\n   *\n   * @param {string} id\n   *        The id of the child `Component` to get.\n   *\n   * @return {Component|undefined}\n   *         The child `Component` with the given `id` or undefined.\n   */\n  ;\n\n  _proto.getChildById = function getChildById(id) {\n    return this.childIndex_[id];\n  }\n  /**\n   * Returns the child `Component` with the given `name`.\n   *\n   * @param {string} name\n   *        The name of the child `Component` to get.\n   *\n   * @return {Component|undefined}\n   *         The child `Component` with the given `name` or undefined.\n   */\n  ;\n\n  _proto.getChild = function getChild(name) {\n    if (!name) {\n      return;\n    }\n\n    return this.childNameIndex_[name];\n  }\n  /**\n   * Returns the descendant `Component` following the givent\n   * descendant `names`. For instance ['foo', 'bar', 'baz'] would\n   * try to get 'foo' on the current component, 'bar' on the 'foo'\n   * component and 'baz' on the 'bar' component and return undefined\n   * if any of those don't exist.\n   *\n   * @param {...string[]|...string} names\n   *        The name of the child `Component` to get.\n   *\n   * @return {Component|undefined}\n   *         The descendant `Component` following the given descendant\n   *         `names` or undefined.\n   */\n  ;\n\n  _proto.getDescendant = function getDescendant() {\n    for (var _len = arguments.length, names = new Array(_len), _key = 0; _key < _len; _key++) {\n      names[_key] = arguments[_key];\n    }\n\n    // flatten array argument into the main array\n    names = names.reduce(function (acc, n) {\n      return acc.concat(n);\n    }, []);\n    var currentChild = this;\n\n    for (var i = 0; i < names.length; i++) {\n      currentChild = currentChild.getChild(names[i]);\n\n      if (!currentChild || !currentChild.getChild) {\n        return;\n      }\n    }\n\n    return currentChild;\n  }\n  /**\n   * Add a child `Component` inside the current `Component`.\n   *\n   *\n   * @param {string|Component} child\n   *        The name or instance of a child to add.\n   *\n   * @param {Object} [options={}]\n   *        The key/value store of options that will get passed to children of\n   *        the child.\n   *\n   * @param {number} [index=this.children_.length]\n   *        The index to attempt to add a child into.\n   *\n   * @return {Component}\n   *         The `Component` that gets added as a child. When using a string the\n   *         `Component` will get created by this process.\n   */\n  ;\n\n  _proto.addChild = function addChild(child, options, index) {\n    if (options === void 0) {\n      options = {};\n    }\n\n    if (index === void 0) {\n      index = this.children_.length;\n    }\n\n    var component;\n    var componentName; // If child is a string, create component with options\n\n    if (typeof child === 'string') {\n      componentName = toTitleCase$1(child);\n      var componentClassName = options.componentClass || componentName; // Set name through options\n\n      options.name = componentName; // Create a new object & element for this controls set\n      // If there's no .player_, this is a player\n\n      var ComponentClass = Component.getComponent(componentClassName);\n\n      if (!ComponentClass) {\n        throw new Error(\"Component \" + componentClassName + \" does not exist\");\n      } // data stored directly on the videojs object may be\n      // misidentified as a component to retain\n      // backwards-compatibility with 4.x. check to make sure the\n      // component class can be instantiated.\n\n\n      if (typeof ComponentClass !== 'function') {\n        return null;\n      }\n\n      component = new ComponentClass(this.player_ || this, options); // child is a component instance\n    } else {\n      component = child;\n    }\n\n    if (component.parentComponent_) {\n      component.parentComponent_.removeChild(component);\n    }\n\n    this.children_.splice(index, 0, component);\n    component.parentComponent_ = this;\n\n    if (typeof component.id === 'function') {\n      this.childIndex_[component.id()] = component;\n    } // If a name wasn't used to create the component, check if we can use the\n    // name function of the component\n\n\n    componentName = componentName || component.name && toTitleCase$1(component.name());\n\n    if (componentName) {\n      this.childNameIndex_[componentName] = component;\n      this.childNameIndex_[toLowerCase(componentName)] = component;\n    } // Add the UI object's element to the container div (box)\n    // Having an element is not required\n\n\n    if (typeof component.el === 'function' && component.el()) {\n      // If inserting before a component, insert before that component's element\n      var refNode = null;\n\n      if (this.children_[index + 1]) {\n        // Most children are components, but the video tech is an HTML element\n        if (this.children_[index + 1].el_) {\n          refNode = this.children_[index + 1].el_;\n        } else if (isEl(this.children_[index + 1])) {\n          refNode = this.children_[index + 1];\n        }\n      }\n\n      this.contentEl().insertBefore(component.el(), refNode);\n    } // Return so it can stored on parent object if desired.\n\n\n    return component;\n  }\n  /**\n   * Remove a child `Component` from this `Component`s list of children. Also removes\n   * the child `Component`s element from this `Component`s element.\n   *\n   * @param {Component} component\n   *        The child `Component` to remove.\n   */\n  ;\n\n  _proto.removeChild = function removeChild(component) {\n    if (typeof component === 'string') {\n      component = this.getChild(component);\n    }\n\n    if (!component || !this.children_) {\n      return;\n    }\n\n    var childFound = false;\n\n    for (var i = this.children_.length - 1; i >= 0; i--) {\n      if (this.children_[i] === component) {\n        childFound = true;\n        this.children_.splice(i, 1);\n        break;\n      }\n    }\n\n    if (!childFound) {\n      return;\n    }\n\n    component.parentComponent_ = null;\n    this.childIndex_[component.id()] = null;\n    this.childNameIndex_[toTitleCase$1(component.name())] = null;\n    this.childNameIndex_[toLowerCase(component.name())] = null;\n    var compEl = component.el();\n\n    if (compEl && compEl.parentNode === this.contentEl()) {\n      this.contentEl().removeChild(component.el());\n    }\n  }\n  /**\n   * Add and initialize default child `Component`s based upon options.\n   */\n  ;\n\n  _proto.initChildren = function initChildren() {\n    var _this = this;\n\n    var children = this.options_.children;\n\n    if (children) {\n      // `this` is `parent`\n      var parentOptions = this.options_;\n\n      var handleAdd = function handleAdd(child) {\n        var name = child.name;\n        var opts = child.opts; // Allow options for children to be set at the parent options\n        // e.g. videojs(id, { controlBar: false });\n        // instead of videojs(id, { children: { controlBar: false });\n\n        if (parentOptions[name] !== undefined) {\n          opts = parentOptions[name];\n        } // Allow for disabling default components\n        // e.g. options['children']['posterImage'] = false\n\n\n        if (opts === false) {\n          return;\n        } // Allow options to be passed as a simple boolean if no configuration\n        // is necessary.\n\n\n        if (opts === true) {\n          opts = {};\n        } // We also want to pass the original player options\n        // to each component as well so they don't need to\n        // reach back into the player for options later.\n\n\n        opts.playerOptions = _this.options_.playerOptions; // Create and add the child component.\n        // Add a direct reference to the child by name on the parent instance.\n        // If two of the same component are used, different names should be supplied\n        // for each\n\n        var newChild = _this.addChild(name, opts);\n\n        if (newChild) {\n          _this[name] = newChild;\n        }\n      }; // Allow for an array of children details to passed in the options\n\n\n      var workingChildren;\n      var Tech = Component.getComponent('Tech');\n\n      if (Array.isArray(children)) {\n        workingChildren = children;\n      } else {\n        workingChildren = Object.keys(children);\n      }\n\n      workingChildren // children that are in this.options_ but also in workingChildren  would\n      // give us extra children we do not want. So, we want to filter them out.\n      .concat(Object.keys(this.options_).filter(function (child) {\n        return !workingChildren.some(function (wchild) {\n          if (typeof wchild === 'string') {\n            return child === wchild;\n          }\n\n          return child === wchild.name;\n        });\n      })).map(function (child) {\n        var name;\n        var opts;\n\n        if (typeof child === 'string') {\n          name = child;\n          opts = children[name] || _this.options_[name] || {};\n        } else {\n          name = child.name;\n          opts = child;\n        }\n\n        return {\n          name: name,\n          opts: opts\n        };\n      }).filter(function (child) {\n        // we have to make sure that child.name isn't in the techOrder since\n        // techs are registerd as Components but can't aren't compatible\n        // See https://github.com/videojs/video.js/issues/2772\n        var c = Component.getComponent(child.opts.componentClass || toTitleCase$1(child.name));\n        return c && !Tech.isTech(c);\n      }).forEach(handleAdd);\n    }\n  }\n  /**\n   * Builds the default DOM class name. Should be overriden by sub-components.\n   *\n   * @return {string}\n   *         The DOM class name for this object.\n   *\n   * @abstract\n   */\n  ;\n\n  _proto.buildCSSClass = function buildCSSClass() {\n    // Child classes can include a function that does:\n    // return 'CLASS NAME' + this._super();\n    return '';\n  }\n  /**\n   * Bind a listener to the component's ready state.\n   * Different from event listeners in that if the ready event has already happened\n   * it will trigger the function immediately.\n   *\n   * @return {Component}\n   *         Returns itself; method can be chained.\n   */\n  ;\n\n  _proto.ready = function ready(fn, sync) {\n    if (sync === void 0) {\n      sync = false;\n    }\n\n    if (!fn) {\n      return;\n    }\n\n    if (!this.isReady_) {\n      this.readyQueue_ = this.readyQueue_ || [];\n      this.readyQueue_.push(fn);\n      return;\n    }\n\n    if (sync) {\n      fn.call(this);\n    } else {\n      // Call the function asynchronously by default for consistency\n      this.setTimeout(fn, 1);\n    }\n  }\n  /**\n   * Trigger all the ready listeners for this `Component`.\n   *\n   * @fires Component#ready\n   */\n  ;\n\n  _proto.triggerReady = function triggerReady() {\n    this.isReady_ = true; // Ensure ready is triggered asynchronously\n\n    this.setTimeout(function () {\n      var readyQueue = this.readyQueue_; // Reset Ready Queue\n\n      this.readyQueue_ = [];\n\n      if (readyQueue && readyQueue.length > 0) {\n        readyQueue.forEach(function (fn) {\n          fn.call(this);\n        }, this);\n      } // Allow for using event listeners also\n\n      /**\n       * Triggered when a `Component` is ready.\n       *\n       * @event Component#ready\n       * @type {EventTarget~Event}\n       */\n\n\n      this.trigger('ready');\n    }, 1);\n  }\n  /**\n   * Find a single DOM element matching a `selector`. This can be within the `Component`s\n   * `contentEl()` or another custom context.\n   *\n   * @param {string} selector\n   *        A valid CSS selector, which will be passed to `querySelector`.\n   *\n   * @param {Element|string} [context=this.contentEl()]\n   *        A DOM element within which to query. Can also be a selector string in\n   *        which case the first matching element will get used as context. If\n   *        missing `this.contentEl()` gets used. If  `this.contentEl()` returns\n   *        nothing it falls back to `document`.\n   *\n   * @return {Element|null}\n   *         the dom element that was found, or null\n   *\n   * @see [Information on CSS Selectors](https://developer.mozilla.org/en-US/docs/Web/Guide/CSS/Getting_Started/Selectors)\n   */\n  ;\n\n  _proto.$ = function $$1(selector, context) {\n    return $(selector, context || this.contentEl());\n  }\n  /**\n   * Finds all DOM element matching a `selector`. This can be within the `Component`s\n   * `contentEl()` or another custom context.\n   *\n   * @param {string} selector\n   *        A valid CSS selector, which will be passed to `querySelectorAll`.\n   *\n   * @param {Element|string} [context=this.contentEl()]\n   *        A DOM element within which to query. Can also be a selector string in\n   *        which case the first matching element will get used as context. If\n   *        missing `this.contentEl()` gets used. If  `this.contentEl()` returns\n   *        nothing it falls back to `document`.\n   *\n   * @return {NodeList}\n   *         a list of dom elements that were found\n   *\n   * @see [Information on CSS Selectors](https://developer.mozilla.org/en-US/docs/Web/Guide/CSS/Getting_Started/Selectors)\n   */\n  ;\n\n  _proto.$$ = function $$$1(selector, context) {\n    return $$(selector, context || this.contentEl());\n  }\n  /**\n   * Check if a component's element has a CSS class name.\n   *\n   * @param {string} classToCheck\n   *        CSS class name to check.\n   *\n   * @return {boolean}\n   *         - True if the `Component` has the class.\n   *         - False if the `Component` does not have the class`\n   */\n  ;\n\n  _proto.hasClass = function hasClass$1(classToCheck) {\n    return hasClass(this.el_, classToCheck);\n  }\n  /**\n   * Add a CSS class name to the `Component`s element.\n   *\n   * @param {string} classToAdd\n   *        CSS class name to add\n   */\n  ;\n\n  _proto.addClass = function addClass$1(classToAdd) {\n    addClass(this.el_, classToAdd);\n  }\n  /**\n   * Remove a CSS class name from the `Component`s element.\n   *\n   * @param {string} classToRemove\n   *        CSS class name to remove\n   */\n  ;\n\n  _proto.removeClass = function removeClass$1(classToRemove) {\n    removeClass(this.el_, classToRemove);\n  }\n  /**\n   * Add or remove a CSS class name from the component's element.\n   * - `classToToggle` gets added when {@link Component#hasClass} would return false.\n   * - `classToToggle` gets removed when {@link Component#hasClass} would return true.\n   *\n   * @param  {string} classToToggle\n   *         The class to add or remove based on (@link Component#hasClass}\n   *\n   * @param  {boolean|Dom~predicate} [predicate]\n   *         An {@link Dom~predicate} function or a boolean\n   */\n  ;\n\n  _proto.toggleClass = function toggleClass$1(classToToggle, predicate) {\n    toggleClass(this.el_, classToToggle, predicate);\n  }\n  /**\n   * Show the `Component`s element if it is hidden by removing the\n   * 'vjs-hidden' class name from it.\n   */\n  ;\n\n  _proto.show = function show() {\n    this.removeClass('vjs-hidden');\n  }\n  /**\n   * Hide the `Component`s element if it is currently showing by adding the\n   * 'vjs-hidden` class name to it.\n   */\n  ;\n\n  _proto.hide = function hide() {\n    this.addClass('vjs-hidden');\n  }\n  /**\n   * Lock a `Component`s element in its visible state by adding the 'vjs-lock-showing'\n   * class name to it. Used during fadeIn/fadeOut.\n   *\n   * @private\n   */\n  ;\n\n  _proto.lockShowing = function lockShowing() {\n    this.addClass('vjs-lock-showing');\n  }\n  /**\n   * Unlock a `Component`s element from its visible state by removing the 'vjs-lock-showing'\n   * class name from it. Used during fadeIn/fadeOut.\n   *\n   * @private\n   */\n  ;\n\n  _proto.unlockShowing = function unlockShowing() {\n    this.removeClass('vjs-lock-showing');\n  }\n  /**\n   * Get the value of an attribute on the `Component`s element.\n   *\n   * @param {string} attribute\n   *        Name of the attribute to get the value from.\n   *\n   * @return {string|null}\n   *         - The value of the attribute that was asked for.\n   *         - Can be an empty string on some browsers if the attribute does not exist\n   *           or has no value\n   *         - Most browsers will return null if the attibute does not exist or has\n   *           no value.\n   *\n   * @see [DOM API]{@link https://developer.mozilla.org/en-US/docs/Web/API/Element/getAttribute}\n   */\n  ;\n\n  _proto.getAttribute = function getAttribute$1(attribute) {\n    return getAttribute(this.el_, attribute);\n  }\n  /**\n   * Set the value of an attribute on the `Component`'s element\n   *\n   * @param {string} attribute\n   *        Name of the attribute to set.\n   *\n   * @param {string} value\n   *        Value to set the attribute to.\n   *\n   * @see [DOM API]{@link https://developer.mozilla.org/en-US/docs/Web/API/Element/setAttribute}\n   */\n  ;\n\n  _proto.setAttribute = function setAttribute$1(attribute, value) {\n    setAttribute(this.el_, attribute, value);\n  }\n  /**\n   * Remove an attribute from the `Component`s element.\n   *\n   * @param {string} attribute\n   *        Name of the attribute to remove.\n   *\n   * @see [DOM API]{@link https://developer.mozilla.org/en-US/docs/Web/API/Element/removeAttribute}\n   */\n  ;\n\n  _proto.removeAttribute = function removeAttribute$1(attribute) {\n    removeAttribute(this.el_, attribute);\n  }\n  /**\n   * Get or set the width of the component based upon the CSS styles.\n   * See {@link Component#dimension} for more detailed information.\n   *\n   * @param {number|string} [num]\n   *        The width that you want to set postfixed with '%', 'px' or nothing.\n   *\n   * @param {boolean} [skipListeners]\n   *        Skip the componentresize event trigger\n   *\n   * @return {number|string}\n   *         The width when getting, zero if there is no width. Can be a string\n   *           postpixed with '%' or 'px'.\n   */\n  ;\n\n  _proto.width = function width(num, skipListeners) {\n    return this.dimension('width', num, skipListeners);\n  }\n  /**\n   * Get or set the height of the component based upon the CSS styles.\n   * See {@link Component#dimension} for more detailed information.\n   *\n   * @param {number|string} [num]\n   *        The height that you want to set postfixed with '%', 'px' or nothing.\n   *\n   * @param {boolean} [skipListeners]\n   *        Skip the componentresize event trigger\n   *\n   * @return {number|string}\n   *         The width when getting, zero if there is no width. Can be a string\n   *         postpixed with '%' or 'px'.\n   */\n  ;\n\n  _proto.height = function height(num, skipListeners) {\n    return this.dimension('height', num, skipListeners);\n  }\n  /**\n   * Set both the width and height of the `Component` element at the same time.\n   *\n   * @param  {number|string} width\n   *         Width to set the `Component`s element to.\n   *\n   * @param  {number|string} height\n   *         Height to set the `Component`s element to.\n   */\n  ;\n\n  _proto.dimensions = function dimensions(width, height) {\n    // Skip componentresize listeners on width for optimization\n    this.width(width, true);\n    this.height(height);\n  }\n  /**\n   * Get or set width or height of the `Component` element. This is the shared code\n   * for the {@link Component#width} and {@link Component#height}.\n   *\n   * Things to know:\n   * - If the width or height in an number this will return the number postfixed with 'px'.\n   * - If the width/height is a percent this will return the percent postfixed with '%'\n   * - Hidden elements have a width of 0 with `window.getComputedStyle`. This function\n   *   defaults to the `Component`s `style.width` and falls back to `window.getComputedStyle`.\n   *   See [this]{@link http://www.foliotek.com/devblog/getting-the-width-of-a-hidden-element-with-jquery-using-width/}\n   *   for more information\n   * - If you want the computed style of the component, use {@link Component#currentWidth}\n   *   and {@link {Component#currentHeight}\n   *\n   * @fires Component#componentresize\n   *\n   * @param {string} widthOrHeight\n   8        'width' or 'height'\n   *\n   * @param  {number|string} [num]\n   8         New dimension\n   *\n   * @param  {boolean} [skipListeners]\n   *         Skip componentresize event trigger\n   *\n   * @return {number}\n   *         The dimension when getting or 0 if unset\n   */\n  ;\n\n  _proto.dimension = function dimension(widthOrHeight, num, skipListeners) {\n    if (num !== undefined) {\n      // Set to zero if null or literally NaN (NaN !== NaN)\n      if (num === null || num !== num) {\n        num = 0;\n      } // Check if using css width/height (% or px) and adjust\n\n\n      if (('' + num).indexOf('%') !== -1 || ('' + num).indexOf('px') !== -1) {\n        this.el_.style[widthOrHeight] = num;\n      } else if (num === 'auto') {\n        this.el_.style[widthOrHeight] = '';\n      } else {\n        this.el_.style[widthOrHeight] = num + 'px';\n      } // skipListeners allows us to avoid triggering the resize event when setting both width and height\n\n\n      if (!skipListeners) {\n        /**\n         * Triggered when a component is resized.\n         *\n         * @event Component#componentresize\n         * @type {EventTarget~Event}\n         */\n        this.trigger('componentresize');\n      }\n\n      return;\n    } // Not setting a value, so getting it\n    // Make sure element exists\n\n\n    if (!this.el_) {\n      return 0;\n    } // Get dimension value from style\n\n\n    var val = this.el_.style[widthOrHeight];\n    var pxIndex = val.indexOf('px');\n\n    if (pxIndex !== -1) {\n      // Return the pixel value with no 'px'\n      return parseInt(val.slice(0, pxIndex), 10);\n    } // No px so using % or no style was set, so falling back to offsetWidth/height\n    // If component has display:none, offset will return 0\n    // TODO: handle display:none and no dimension style using px\n\n\n    return parseInt(this.el_['offset' + toTitleCase$1(widthOrHeight)], 10);\n  }\n  /**\n   * Get the computed width or the height of the component's element.\n   *\n   * Uses `window.getComputedStyle`.\n   *\n   * @param {string} widthOrHeight\n   *        A string containing 'width' or 'height'. Whichever one you want to get.\n   *\n   * @return {number}\n   *         The dimension that gets asked for or 0 if nothing was set\n   *         for that dimension.\n   */\n  ;\n\n  _proto.currentDimension = function currentDimension(widthOrHeight) {\n    var computedWidthOrHeight = 0;\n\n    if (widthOrHeight !== 'width' && widthOrHeight !== 'height') {\n      throw new Error('currentDimension only accepts width or height value');\n    }\n\n    computedWidthOrHeight = computedStyle(this.el_, widthOrHeight); // remove 'px' from variable and parse as integer\n\n    computedWidthOrHeight = parseFloat(computedWidthOrHeight); // if the computed value is still 0, it's possible that the browser is lying\n    // and we want to check the offset values.\n    // This code also runs wherever getComputedStyle doesn't exist.\n\n    if (computedWidthOrHeight === 0 || isNaN(computedWidthOrHeight)) {\n      var rule = \"offset\" + toTitleCase$1(widthOrHeight);\n      computedWidthOrHeight = this.el_[rule];\n    }\n\n    return computedWidthOrHeight;\n  }\n  /**\n   * An object that contains width and height values of the `Component`s\n   * computed style. Uses `window.getComputedStyle`.\n   *\n   * @typedef {Object} Component~DimensionObject\n   *\n   * @property {number} width\n   *           The width of the `Component`s computed style.\n   *\n   * @property {number} height\n   *           The height of the `Component`s computed style.\n   */\n\n  /**\n   * Get an object that contains computed width and height values of the\n   * component's element.\n   *\n   * Uses `window.getComputedStyle`.\n   *\n   * @return {Component~DimensionObject}\n   *         The computed dimensions of the component's element.\n   */\n  ;\n\n  _proto.currentDimensions = function currentDimensions() {\n    return {\n      width: this.currentDimension('width'),\n      height: this.currentDimension('height')\n    };\n  }\n  /**\n   * Get the computed width of the component's element.\n   *\n   * Uses `window.getComputedStyle`.\n   *\n   * @return {number}\n   *         The computed width of the component's element.\n   */\n  ;\n\n  _proto.currentWidth = function currentWidth() {\n    return this.currentDimension('width');\n  }\n  /**\n   * Get the computed height of the component's element.\n   *\n   * Uses `window.getComputedStyle`.\n   *\n   * @return {number}\n   *         The computed height of the component's element.\n   */\n  ;\n\n  _proto.currentHeight = function currentHeight() {\n    return this.currentDimension('height');\n  }\n  /**\n   * Set the focus to this component\n   */\n  ;\n\n  _proto.focus = function focus() {\n    this.el_.focus();\n  }\n  /**\n   * Remove the focus from this component\n   */\n  ;\n\n  _proto.blur = function blur() {\n    this.el_.blur();\n  }\n  /**\n   * When this Component receives a `keydown` event which it does not process,\n   *  it passes the event to the Player for handling.\n   *\n   * @param {EventTarget~Event} event\n   *        The `keydown` event that caused this function to be called.\n   */\n  ;\n\n  _proto.handleKeyDown = function handleKeyDown(event) {\n    if (this.player_) {\n      // We only stop propagation here because we want unhandled events to fall\n      // back to the browser.\n      event.stopPropagation();\n      this.player_.handleKeyDown(event);\n    }\n  }\n  /**\n   * Many components used to have a `handleKeyPress` method, which was poorly\n   * named because it listened to a `keydown` event. This method name now\n   * delegates to `handleKeyDown`. This means anyone calling `handleKeyPress`\n   * will not see their method calls stop working.\n   *\n   * @param {EventTarget~Event} event\n   *        The event that caused this function to be called.\n   */\n  ;\n\n  _proto.handleKeyPress = function handleKeyPress(event) {\n    this.handleKeyDown(event);\n  }\n  /**\n   * Emit a 'tap' events when touch event support gets detected. This gets used to\n   * support toggling the controls through a tap on the video. They get enabled\n   * because every sub-component would have extra overhead otherwise.\n   *\n   * @private\n   * @fires Component#tap\n   * @listens Component#touchstart\n   * @listens Component#touchmove\n   * @listens Component#touchleave\n   * @listens Component#touchcancel\n   * @listens Component#touchend\n    */\n  ;\n\n  _proto.emitTapEvents = function emitTapEvents() {\n    // Track the start time so we can determine how long the touch lasted\n    var touchStart = 0;\n    var firstTouch = null; // Maximum movement allowed during a touch event to still be considered a tap\n    // Other popular libs use anywhere from 2 (hammer.js) to 15,\n    // so 10 seems like a nice, round number.\n\n    var tapMovementThreshold = 10; // The maximum length a touch can be while still being considered a tap\n\n    var touchTimeThreshold = 200;\n    var couldBeTap;\n    this.on('touchstart', function (event) {\n      // If more than one finger, don't consider treating this as a click\n      if (event.touches.length === 1) {\n        // Copy pageX/pageY from the object\n        firstTouch = {\n          pageX: event.touches[0].pageX,\n          pageY: event.touches[0].pageY\n        }; // Record start time so we can detect a tap vs. \"touch and hold\"\n\n        touchStart = window.performance.now(); // Reset couldBeTap tracking\n\n        couldBeTap = true;\n      }\n    });\n    this.on('touchmove', function (event) {\n      // If more than one finger, don't consider treating this as a click\n      if (event.touches.length > 1) {\n        couldBeTap = false;\n      } else if (firstTouch) {\n        // Some devices will throw touchmoves for all but the slightest of taps.\n        // So, if we moved only a small distance, this could still be a tap\n        var xdiff = event.touches[0].pageX - firstTouch.pageX;\n        var ydiff = event.touches[0].pageY - firstTouch.pageY;\n        var touchDistance = Math.sqrt(xdiff * xdiff + ydiff * ydiff);\n\n        if (touchDistance > tapMovementThreshold) {\n          couldBeTap = false;\n        }\n      }\n    });\n\n    var noTap = function noTap() {\n      couldBeTap = false;\n    }; // TODO: Listen to the original target. http://youtu.be/DujfpXOKUp8?t=13m8s\n\n\n    this.on('touchleave', noTap);\n    this.on('touchcancel', noTap); // When the touch ends, measure how long it took and trigger the appropriate\n    // event\n\n    this.on('touchend', function (event) {\n      firstTouch = null; // Proceed only if the touchmove/leave/cancel event didn't happen\n\n      if (couldBeTap === true) {\n        // Measure how long the touch lasted\n        var touchTime = window.performance.now() - touchStart; // Make sure the touch was less than the threshold to be considered a tap\n\n        if (touchTime < touchTimeThreshold) {\n          // Don't let browser turn this into a click\n          event.preventDefault();\n          /**\n           * Triggered when a `Component` is tapped.\n           *\n           * @event Component#tap\n           * @type {EventTarget~Event}\n           */\n\n          this.trigger('tap'); // It may be good to copy the touchend event object and change the\n          // type to tap, if the other event properties aren't exact after\n          // Events.fixEvent runs (e.g. event.target)\n        }\n      }\n    });\n  }\n  /**\n   * This function reports user activity whenever touch events happen. This can get\n   * turned off by any sub-components that wants touch events to act another way.\n   *\n   * Report user touch activity when touch events occur. User activity gets used to\n   * determine when controls should show/hide. It is simple when it comes to mouse\n   * events, because any mouse event should show the controls. So we capture mouse\n   * events that bubble up to the player and report activity when that happens.\n   * With touch events it isn't as easy as `touchstart` and `touchend` toggle player\n   * controls. So touch events can't help us at the player level either.\n   *\n   * User activity gets checked asynchronously. So what could happen is a tap event\n   * on the video turns the controls off. Then the `touchend` event bubbles up to\n   * the player. Which, if it reported user activity, would turn the controls right\n   * back on. We also don't want to completely block touch events from bubbling up.\n   * Furthermore a `touchmove` event and anything other than a tap, should not turn\n   * controls back on.\n   *\n   * @listens Component#touchstart\n   * @listens Component#touchmove\n   * @listens Component#touchend\n   * @listens Component#touchcancel\n   */\n  ;\n\n  _proto.enableTouchActivity = function enableTouchActivity() {\n    // Don't continue if the root player doesn't support reporting user activity\n    if (!this.player() || !this.player().reportUserActivity) {\n      return;\n    } // listener for reporting that the user is active\n\n\n    var report = bind(this.player(), this.player().reportUserActivity);\n    var touchHolding;\n    this.on('touchstart', function () {\n      report(); // For as long as the they are touching the device or have their mouse down,\n      // we consider them active even if they're not moving their finger or mouse.\n      // So we want to continue to update that they are active\n\n      this.clearInterval(touchHolding); // report at the same interval as activityCheck\n\n      touchHolding = this.setInterval(report, 250);\n    });\n\n    var touchEnd = function touchEnd(event) {\n      report(); // stop the interval that maintains activity if the touch is holding\n\n      this.clearInterval(touchHolding);\n    };\n\n    this.on('touchmove', report);\n    this.on('touchend', touchEnd);\n    this.on('touchcancel', touchEnd);\n  }\n  /**\n   * A callback that has no parameters and is bound into `Component`s context.\n   *\n   * @callback Component~GenericCallback\n   * @this Component\n   */\n\n  /**\n   * Creates a function that runs after an `x` millisecond timeout. This function is a\n   * wrapper around `window.setTimeout`. There are a few reasons to use this one\n   * instead though:\n   * 1. It gets cleared via  {@link Component#clearTimeout} when\n   *    {@link Component#dispose} gets called.\n   * 2. The function callback will gets turned into a {@link Component~GenericCallback}\n   *\n   * > Note: You can't use `window.clearTimeout` on the id returned by this function. This\n   *         will cause its dispose listener not to get cleaned up! Please use\n   *         {@link Component#clearTimeout} or {@link Component#dispose} instead.\n   *\n   * @param {Component~GenericCallback} fn\n   *        The function that will be run after `timeout`.\n   *\n   * @param {number} timeout\n   *        Timeout in milliseconds to delay before executing the specified function.\n   *\n   * @return {number}\n   *         Returns a timeout ID that gets used to identify the timeout. It can also\n   *         get used in {@link Component#clearTimeout} to clear the timeout that\n   *         was set.\n   *\n   * @listens Component#dispose\n   * @see [Similar to]{@link https://developer.mozilla.org/en-US/docs/Web/API/WindowTimers/setTimeout}\n   */\n  ;\n\n  _proto.setTimeout = function setTimeout(fn, timeout) {\n    var _this2 = this;\n\n    // declare as variables so they are properly available in timeout function\n    // eslint-disable-next-line\n    var timeoutId;\n    fn = bind(this, fn);\n    this.clearTimersOnDispose_();\n    timeoutId = window.setTimeout(function () {\n      if (_this2.setTimeoutIds_.has(timeoutId)) {\n        _this2.setTimeoutIds_[\"delete\"](timeoutId);\n      }\n\n      fn();\n    }, timeout);\n    this.setTimeoutIds_.add(timeoutId);\n    return timeoutId;\n  }\n  /**\n   * Clears a timeout that gets created via `window.setTimeout` or\n   * {@link Component#setTimeout}. If you set a timeout via {@link Component#setTimeout}\n   * use this function instead of `window.clearTimout`. If you don't your dispose\n   * listener will not get cleaned up until {@link Component#dispose}!\n   *\n   * @param {number} timeoutId\n   *        The id of the timeout to clear. The return value of\n   *        {@link Component#setTimeout} or `window.setTimeout`.\n   *\n   * @return {number}\n   *         Returns the timeout id that was cleared.\n   *\n   * @see [Similar to]{@link https://developer.mozilla.org/en-US/docs/Web/API/WindowTimers/clearTimeout}\n   */\n  ;\n\n  _proto.clearTimeout = function clearTimeout(timeoutId) {\n    if (this.setTimeoutIds_.has(timeoutId)) {\n      this.setTimeoutIds_[\"delete\"](timeoutId);\n      window.clearTimeout(timeoutId);\n    }\n\n    return timeoutId;\n  }\n  /**\n   * Creates a function that gets run every `x` milliseconds. This function is a wrapper\n   * around `window.setInterval`. There are a few reasons to use this one instead though.\n   * 1. It gets cleared via  {@link Component#clearInterval} when\n   *    {@link Component#dispose} gets called.\n   * 2. The function callback will be a {@link Component~GenericCallback}\n   *\n   * @param {Component~GenericCallback} fn\n   *        The function to run every `x` seconds.\n   *\n   * @param {number} interval\n   *        Execute the specified function every `x` milliseconds.\n   *\n   * @return {number}\n   *         Returns an id that can be used to identify the interval. It can also be be used in\n   *         {@link Component#clearInterval} to clear the interval.\n   *\n   * @listens Component#dispose\n   * @see [Similar to]{@link https://developer.mozilla.org/en-US/docs/Web/API/WindowTimers/setInterval}\n   */\n  ;\n\n  _proto.setInterval = function setInterval(fn, interval) {\n    fn = bind(this, fn);\n    this.clearTimersOnDispose_();\n    var intervalId = window.setInterval(fn, interval);\n    this.setIntervalIds_.add(intervalId);\n    return intervalId;\n  }\n  /**\n   * Clears an interval that gets created via `window.setInterval` or\n   * {@link Component#setInterval}. If you set an inteval via {@link Component#setInterval}\n   * use this function instead of `window.clearInterval`. If you don't your dispose\n   * listener will not get cleaned up until {@link Component#dispose}!\n   *\n   * @param {number} intervalId\n   *        The id of the interval to clear. The return value of\n   *        {@link Component#setInterval} or `window.setInterval`.\n   *\n   * @return {number}\n   *         Returns the interval id that was cleared.\n   *\n   * @see [Similar to]{@link https://developer.mozilla.org/en-US/docs/Web/API/WindowTimers/clearInterval}\n   */\n  ;\n\n  _proto.clearInterval = function clearInterval(intervalId) {\n    if (this.setIntervalIds_.has(intervalId)) {\n      this.setIntervalIds_[\"delete\"](intervalId);\n      window.clearInterval(intervalId);\n    }\n\n    return intervalId;\n  }\n  /**\n   * Queues up a callback to be passed to requestAnimationFrame (rAF), but\n   * with a few extra bonuses:\n   *\n   * - Supports browsers that do not support rAF by falling back to\n   *   {@link Component#setTimeout}.\n   *\n   * - The callback is turned into a {@link Component~GenericCallback} (i.e.\n   *   bound to the component).\n   *\n   * - Automatic cancellation of the rAF callback is handled if the component\n   *   is disposed before it is called.\n   *\n   * @param  {Component~GenericCallback} fn\n   *         A function that will be bound to this component and executed just\n   *         before the browser's next repaint.\n   *\n   * @return {number}\n   *         Returns an rAF ID that gets used to identify the timeout. It can\n   *         also be used in {@link Component#cancelAnimationFrame} to cancel\n   *         the animation frame callback.\n   *\n   * @listens Component#dispose\n   * @see [Similar to]{@link https://developer.mozilla.org/en-US/docs/Web/API/window/requestAnimationFrame}\n   */\n  ;\n\n  _proto.requestAnimationFrame = function requestAnimationFrame(fn) {\n    var _this3 = this;\n\n    // Fall back to using a timer.\n    if (!this.supportsRaf_) {\n      return this.setTimeout(fn, 1000 / 60);\n    }\n\n    this.clearTimersOnDispose_(); // declare as variables so they are properly available in rAF function\n    // eslint-disable-next-line\n\n    var id;\n    fn = bind(this, fn);\n    id = window.requestAnimationFrame(function () {\n      if (_this3.rafIds_.has(id)) {\n        _this3.rafIds_[\"delete\"](id);\n      }\n\n      fn();\n    });\n    this.rafIds_.add(id);\n    return id;\n  }\n  /**\n   * Request an animation frame, but only one named animation\n   * frame will be queued. Another will never be added until\n   * the previous one finishes.\n   *\n   * @param {string} name\n   *        The name to give this requestAnimationFrame\n   *\n   * @param  {Component~GenericCallback} fn\n   *         A function that will be bound to this component and executed just\n   *         before the browser's next repaint.\n   */\n  ;\n\n  _proto.requestNamedAnimationFrame = function requestNamedAnimationFrame(name, fn) {\n    var _this4 = this;\n\n    if (this.namedRafs_.has(name)) {\n      return;\n    }\n\n    this.clearTimersOnDispose_();\n    fn = bind(this, fn);\n    var id = this.requestAnimationFrame(function () {\n      fn();\n\n      if (_this4.namedRafs_.has(name)) {\n        _this4.namedRafs_[\"delete\"](name);\n      }\n    });\n    this.namedRafs_.set(name, id);\n    return name;\n  }\n  /**\n   * Cancels a current named animation frame if it exists.\n   *\n   * @param {string} name\n   *        The name of the requestAnimationFrame to cancel.\n   */\n  ;\n\n  _proto.cancelNamedAnimationFrame = function cancelNamedAnimationFrame(name) {\n    if (!this.namedRafs_.has(name)) {\n      return;\n    }\n\n    this.cancelAnimationFrame(this.namedRafs_.get(name));\n    this.namedRafs_[\"delete\"](name);\n  }\n  /**\n   * Cancels a queued callback passed to {@link Component#requestAnimationFrame}\n   * (rAF).\n   *\n   * If you queue an rAF callback via {@link Component#requestAnimationFrame},\n   * use this function instead of `window.cancelAnimationFrame`. If you don't,\n   * your dispose listener will not get cleaned up until {@link Component#dispose}!\n   *\n   * @param {number} id\n   *        The rAF ID to clear. The return value of {@link Component#requestAnimationFrame}.\n   *\n   * @return {number}\n   *         Returns the rAF ID that was cleared.\n   *\n   * @see [Similar to]{@link https://developer.mozilla.org/en-US/docs/Web/API/window/cancelAnimationFrame}\n   */\n  ;\n\n  _proto.cancelAnimationFrame = function cancelAnimationFrame(id) {\n    // Fall back to using a timer.\n    if (!this.supportsRaf_) {\n      return this.clearTimeout(id);\n    }\n\n    if (this.rafIds_.has(id)) {\n      this.rafIds_[\"delete\"](id);\n      window.cancelAnimationFrame(id);\n    }\n\n    return id;\n  }\n  /**\n   * A function to setup `requestAnimationFrame`, `setTimeout`,\n   * and `setInterval`, clearing on dispose.\n   *\n   * > Previously each timer added and removed dispose listeners on it's own.\n   * For better performance it was decided to batch them all, and use `Set`s\n   * to track outstanding timer ids.\n   *\n   * @private\n   */\n  ;\n\n  _proto.clearTimersOnDispose_ = function clearTimersOnDispose_() {\n    var _this5 = this;\n\n    if (this.clearingTimersOnDispose_) {\n      return;\n    }\n\n    this.clearingTimersOnDispose_ = true;\n    this.one('dispose', function () {\n      [['namedRafs_', 'cancelNamedAnimationFrame'], ['rafIds_', 'cancelAnimationFrame'], ['setTimeoutIds_', 'clearTimeout'], ['setIntervalIds_', 'clearInterval']].forEach(function (_ref) {\n        var idName = _ref[0],\n            cancelName = _ref[1];\n\n        // for a `Set` key will actually be the value again\n        // so forEach((val, val) =>` but for maps we want to use\n        // the key.\n        _this5[idName].forEach(function (val, key) {\n          return _this5[cancelName](key);\n        });\n      });\n      _this5.clearingTimersOnDispose_ = false;\n    });\n  }\n  /**\n   * Register a `Component` with `videojs` given the name and the component.\n   *\n   * > NOTE: {@link Tech}s should not be registered as a `Component`. {@link Tech}s\n   *         should be registered using {@link Tech.registerTech} or\n   *         {@link videojs:videojs.registerTech}.\n   *\n   * > NOTE: This function can also be seen on videojs as\n   *         {@link videojs:videojs.registerComponent}.\n   *\n   * @param {string} name\n   *        The name of the `Component` to register.\n   *\n   * @param {Component} ComponentToRegister\n   *        The `Component` class to register.\n   *\n   * @return {Component}\n   *         The `Component` that was registered.\n   */\n  ;\n\n  Component.registerComponent = function registerComponent(name, ComponentToRegister) {\n    if (typeof name !== 'string' || !name) {\n      throw new Error(\"Illegal component name, \\\"\" + name + \"\\\"; must be a non-empty string.\");\n    }\n\n    var Tech = Component.getComponent('Tech'); // We need to make sure this check is only done if Tech has been registered.\n\n    var isTech = Tech && Tech.isTech(ComponentToRegister);\n    var isComp = Component === ComponentToRegister || Component.prototype.isPrototypeOf(ComponentToRegister.prototype);\n\n    if (isTech || !isComp) {\n      var reason;\n\n      if (isTech) {\n        reason = 'techs must be registered using Tech.registerTech()';\n      } else {\n        reason = 'must be a Component subclass';\n      }\n\n      throw new Error(\"Illegal component, \\\"\" + name + \"\\\"; \" + reason + \".\");\n    }\n\n    name = toTitleCase$1(name);\n\n    if (!Component.components_) {\n      Component.components_ = {};\n    }\n\n    var Player = Component.getComponent('Player');\n\n    if (name === 'Player' && Player && Player.players) {\n      var players = Player.players;\n      var playerNames = Object.keys(players); // If we have players that were disposed, then their name will still be\n      // in Players.players. So, we must loop through and verify that the value\n      // for each item is not null. This allows registration of the Player component\n      // after all players have been disposed or before any were created.\n\n      if (players && playerNames.length > 0 && playerNames.map(function (pname) {\n        return players[pname];\n      }).every(Boolean)) {\n        throw new Error('Can not register Player component after player has been created.');\n      }\n    }\n\n    Component.components_[name] = ComponentToRegister;\n    Component.components_[toLowerCase(name)] = ComponentToRegister;\n    return ComponentToRegister;\n  }\n  /**\n   * Get a `Component` based on the name it was registered with.\n   *\n   * @param {string} name\n   *        The Name of the component to get.\n   *\n   * @return {Component}\n   *         The `Component` that got registered under the given name.\n   *\n   * @deprecated In `videojs` 6 this will not return `Component`s that were not\n   *             registered using {@link Component.registerComponent}. Currently we\n   *             check the global `videojs` object for a `Component` name and\n   *             return that if it exists.\n   */\n  ;\n\n  Component.getComponent = function getComponent(name) {\n    if (!name || !Component.components_) {\n      return;\n    }\n\n    return Component.components_[name];\n  };\n\n  return Component;\n}();\n/**\n * Whether or not this component supports `requestAnimationFrame`.\n *\n * This is exposed primarily for testing purposes.\n *\n * @private\n * @type {Boolean}\n */\n\n\nComponent$1.prototype.supportsRaf_ = typeof window.requestAnimationFrame === 'function' && typeof window.cancelAnimationFrame === 'function';\nComponent$1.registerComponent('Component', Component$1);\n\n/**\n * @file time-ranges.js\n * @module time-ranges\n */\n/**\n * Returns the time for the specified index at the start or end\n * of a TimeRange object.\n *\n * @typedef    {Function} TimeRangeIndex\n *\n * @param      {number} [index=0]\n *             The range number to return the time for.\n *\n * @return     {number}\n *             The time offset at the specified index.\n *\n * @deprecated The index argument must be provided.\n *             In the future, leaving it out will throw an error.\n */\n\n/**\n * An object that contains ranges of time.\n *\n * @typedef  {Object} TimeRange\n *\n * @property {number} length\n *           The number of time ranges represented by this object.\n *\n * @property {module:time-ranges~TimeRangeIndex} start\n *           Returns the time offset at which a specified time range begins.\n *\n * @property {module:time-ranges~TimeRangeIndex} end\n *           Returns the time offset at which a specified time range ends.\n *\n * @see https://developer.mozilla.org/en-US/docs/Web/API/TimeRanges\n */\n\n/**\n * Check if any of the time ranges are over the maximum index.\n *\n * @private\n * @param   {string} fnName\n *          The function name to use for logging\n *\n * @param   {number} index\n *          The index to check\n *\n * @param   {number} maxIndex\n *          The maximum possible index\n *\n * @throws  {Error} if the timeRanges provided are over the maxIndex\n */\n\nfunction rangeCheck(fnName, index, maxIndex) {\n  if (typeof index !== 'number' || index < 0 || index > maxIndex) {\n    throw new Error(\"Failed to execute '\" + fnName + \"' on 'TimeRanges': The index provided (\" + index + \") is non-numeric or out of bounds (0-\" + maxIndex + \").\");\n  }\n}\n/**\n * Get the time for the specified index at the start or end\n * of a TimeRange object.\n *\n * @private\n * @param      {string} fnName\n *             The function name to use for logging\n *\n * @param      {string} valueIndex\n *             The property that should be used to get the time. should be\n *             'start' or 'end'\n *\n * @param      {Array} ranges\n *             An array of time ranges\n *\n * @param      {Array} [rangeIndex=0]\n *             The index to start the search at\n *\n * @return     {number}\n *             The time that offset at the specified index.\n *\n * @deprecated rangeIndex must be set to a value, in the future this will throw an error.\n * @throws     {Error} if rangeIndex is more than the length of ranges\n */\n\n\nfunction getRange(fnName, valueIndex, ranges, rangeIndex) {\n  rangeCheck(fnName, rangeIndex, ranges.length - 1);\n  return ranges[rangeIndex][valueIndex];\n}\n/**\n * Create a time range object given ranges of time.\n *\n * @private\n * @param   {Array} [ranges]\n *          An array of time ranges.\n */\n\n\nfunction createTimeRangesObj(ranges) {\n  var timeRangesObj;\n\n  if (ranges === undefined || ranges.length === 0) {\n    timeRangesObj = {\n      length: 0,\n      start: function start() {\n        throw new Error('This TimeRanges object is empty');\n      },\n      end: function end() {\n        throw new Error('This TimeRanges object is empty');\n      }\n    };\n  } else {\n    timeRangesObj = {\n      length: ranges.length,\n      start: getRange.bind(null, 'start', 0, ranges),\n      end: getRange.bind(null, 'end', 1, ranges)\n    };\n  }\n\n  if (window.Symbol && window.Symbol.iterator) {\n    timeRangesObj[window.Symbol.iterator] = function () {\n      return (ranges || []).values();\n    };\n  }\n\n  return timeRangesObj;\n}\n/**\n * Create a `TimeRange` object which mimics an\n * {@link https://developer.mozilla.org/en-US/docs/Web/API/TimeRanges|HTML5 TimeRanges instance}.\n *\n * @param {number|Array[]} start\n *        The start of a single range (a number) or an array of ranges (an\n *        array of arrays of two numbers each).\n *\n * @param {number} end\n *        The end of a single range. Cannot be used with the array form of\n *        the `start` argument.\n */\n\n\nfunction createTimeRanges(start, end) {\n  if (Array.isArray(start)) {\n    return createTimeRangesObj(start);\n  } else if (start === undefined || end === undefined) {\n    return createTimeRangesObj();\n  }\n\n  return createTimeRangesObj([[start, end]]);\n}\n\n/**\n * @file buffer.js\n * @module buffer\n */\n/**\n * Compute the percentage of the media that has been buffered.\n *\n * @param {TimeRange} buffered\n *        The current `TimeRange` object representing buffered time ranges\n *\n * @param {number} duration\n *        Total duration of the media\n *\n * @return {number}\n *         Percent buffered of the total duration in decimal form.\n */\n\nfunction bufferedPercent(buffered, duration) {\n  var bufferedDuration = 0;\n  var start;\n  var end;\n\n  if (!duration) {\n    return 0;\n  }\n\n  if (!buffered || !buffered.length) {\n    buffered = createTimeRanges(0, 0);\n  }\n\n  for (var i = 0; i < buffered.length; i++) {\n    start = buffered.start(i);\n    end = buffered.end(i); // buffered end can be bigger than duration by a very small fraction\n\n    if (end > duration) {\n      end = duration;\n    }\n\n    bufferedDuration += end - start;\n  }\n\n  return bufferedDuration / duration;\n}\n\n/**\n * @file media-error.js\n */\n/**\n * A Custom `MediaError` class which mimics the standard HTML5 `MediaError` class.\n *\n * @param {number|string|Object|MediaError} value\n *        This can be of multiple types:\n *        - number: should be a standard error code\n *        - string: an error message (the code will be 0)\n *        - Object: arbitrary properties\n *        - `MediaError` (native): used to populate a video.js `MediaError` object\n *        - `MediaError` (video.js): will return itself if it's already a\n *          video.js `MediaError` object.\n *\n * @see [MediaError Spec]{@link https://dev.w3.org/html5/spec-author-view/video.html#mediaerror}\n * @see [Encrypted MediaError Spec]{@link https://www.w3.org/TR/2013/WD-encrypted-media-20130510/#error-codes}\n *\n * @class MediaError\n */\n\nfunction MediaError(value) {\n  // Allow redundant calls to this constructor to avoid having `instanceof`\n  // checks peppered around the code.\n  if (value instanceof MediaError) {\n    return value;\n  }\n\n  if (typeof value === 'number') {\n    this.code = value;\n  } else if (typeof value === 'string') {\n    // default code is zero, so this is a custom error\n    this.message = value;\n  } else if (isObject(value)) {\n    // We assign the `code` property manually because native `MediaError` objects\n    // do not expose it as an own/enumerable property of the object.\n    if (typeof value.code === 'number') {\n      this.code = value.code;\n    }\n\n    assign(this, value);\n  }\n\n  if (!this.message) {\n    this.message = MediaError.defaultMessages[this.code] || '';\n  }\n}\n/**\n * The error code that refers two one of the defined `MediaError` types\n *\n * @type {Number}\n */\n\n\nMediaError.prototype.code = 0;\n/**\n * An optional message that to show with the error. Message is not part of the HTML5\n * video spec but allows for more informative custom errors.\n *\n * @type {String}\n */\n\nMediaError.prototype.message = '';\n/**\n * An optional status code that can be set by plugins to allow even more detail about\n * the error. For example a plugin might provide a specific HTTP status code and an\n * error message for that code. Then when the plugin gets that error this class will\n * know how to display an error message for it. This allows a custom message to show\n * up on the `Player` error overlay.\n *\n * @type {Array}\n */\n\nMediaError.prototype.status = null;\n/**\n * Errors indexed by the W3C standard. The order **CANNOT CHANGE**! See the\n * specification listed under {@link MediaError} for more information.\n *\n * @enum {array}\n * @readonly\n * @property {string} 0 - MEDIA_ERR_CUSTOM\n * @property {string} 1 - MEDIA_ERR_ABORTED\n * @property {string} 2 - MEDIA_ERR_NETWORK\n * @property {string} 3 - MEDIA_ERR_DECODE\n * @property {string} 4 - MEDIA_ERR_SRC_NOT_SUPPORTED\n * @property {string} 5 - MEDIA_ERR_ENCRYPTED\n */\n\nMediaError.errorTypes = ['MEDIA_ERR_CUSTOM', 'MEDIA_ERR_ABORTED', 'MEDIA_ERR_NETWORK', 'MEDIA_ERR_DECODE', 'MEDIA_ERR_SRC_NOT_SUPPORTED', 'MEDIA_ERR_ENCRYPTED'];\n/**\n * The default `MediaError` messages based on the {@link MediaError.errorTypes}.\n *\n * @type {Array}\n * @constant\n */\n\nMediaError.defaultMessages = {\n  1: 'You aborted the media playback',\n  2: 'A network error caused the media download to fail part-way.',\n  3: 'The media playback was aborted due to a corruption problem or because the media used features your browser did not support.',\n  4: 'The media could not be loaded, either because the server or network failed or because the format is not supported.',\n  5: 'The media is encrypted and we do not have the keys to decrypt it.'\n}; // Add types as properties on MediaError\n// e.g. MediaError.MEDIA_ERR_SRC_NOT_SUPPORTED = 4;\n\nfor (var errNum = 0; errNum < MediaError.errorTypes.length; errNum++) {\n  MediaError[MediaError.errorTypes[errNum]] = errNum; // values should be accessible on both the class and instance\n\n  MediaError.prototype[MediaError.errorTypes[errNum]] = errNum;\n} // jsdocs for instance/static members added above\n\n/**\n * Returns whether an object is `Promise`-like (i.e. has a `then` method).\n *\n * @param  {Object}  value\n *         An object that may or may not be `Promise`-like.\n *\n * @return {boolean}\n *         Whether or not the object is `Promise`-like.\n */\nfunction isPromise(value) {\n  return value !== undefined && value !== null && typeof value.then === 'function';\n}\n/**\n * Silence a Promise-like object.\n *\n * This is useful for avoiding non-harmful, but potentially confusing \"uncaught\n * play promise\" rejection error messages.\n *\n * @param  {Object} value\n *         An object that may or may not be `Promise`-like.\n */\n\nfunction silencePromise(value) {\n  if (isPromise(value)) {\n    value.then(null, function (e) {});\n  }\n}\n\n/**\n * @file text-track-list-converter.js Utilities for capturing text track state and\n * re-creating tracks based on a capture.\n *\n * @module text-track-list-converter\n */\n\n/**\n * Examine a single {@link TextTrack} and return a JSON-compatible javascript object that\n * represents the {@link TextTrack}'s state.\n *\n * @param {TextTrack} track\n *        The text track to query.\n *\n * @return {Object}\n *         A serializable javascript representation of the TextTrack.\n * @private\n */\nvar trackToJson_ = function trackToJson_(track) {\n  var ret = ['kind', 'label', 'language', 'id', 'inBandMetadataTrackDispatchType', 'mode', 'src'].reduce(function (acc, prop, i) {\n    if (track[prop]) {\n      acc[prop] = track[prop];\n    }\n\n    return acc;\n  }, {\n    cues: track.cues && Array.prototype.map.call(track.cues, function (cue) {\n      return {\n        startTime: cue.startTime,\n        endTime: cue.endTime,\n        text: cue.text,\n        id: cue.id\n      };\n    })\n  });\n  return ret;\n};\n/**\n * Examine a {@link Tech} and return a JSON-compatible javascript array that represents the\n * state of all {@link TextTrack}s currently configured. The return array is compatible with\n * {@link text-track-list-converter:jsonToTextTracks}.\n *\n * @param {Tech} tech\n *        The tech object to query\n *\n * @return {Array}\n *         A serializable javascript representation of the {@link Tech}s\n *         {@link TextTrackList}.\n */\n\n\nvar textTracksToJson = function textTracksToJson(tech) {\n  var trackEls = tech.$$('track');\n  var trackObjs = Array.prototype.map.call(trackEls, function (t) {\n    return t.track;\n  });\n  var tracks = Array.prototype.map.call(trackEls, function (trackEl) {\n    var json = trackToJson_(trackEl.track);\n\n    if (trackEl.src) {\n      json.src = trackEl.src;\n    }\n\n    return json;\n  });\n  return tracks.concat(Array.prototype.filter.call(tech.textTracks(), function (track) {\n    return trackObjs.indexOf(track) === -1;\n  }).map(trackToJson_));\n};\n/**\n * Create a set of remote {@link TextTrack}s on a {@link Tech} based on an array of javascript\n * object {@link TextTrack} representations.\n *\n * @param {Array} json\n *        An array of `TextTrack` representation objects, like those that would be\n *        produced by `textTracksToJson`.\n *\n * @param {Tech} tech\n *        The `Tech` to create the `TextTrack`s on.\n */\n\n\nvar jsonToTextTracks = function jsonToTextTracks(json, tech) {\n  json.forEach(function (track) {\n    var addedTrack = tech.addRemoteTextTrack(track).track;\n\n    if (!track.src && track.cues) {\n      track.cues.forEach(function (cue) {\n        return addedTrack.addCue(cue);\n      });\n    }\n  });\n  return tech.textTracks();\n};\n\nvar textTrackConverter = {\n  textTracksToJson: textTracksToJson,\n  jsonToTextTracks: jsonToTextTracks,\n  trackToJson_: trackToJson_\n};\n\nvar MODAL_CLASS_NAME = 'vjs-modal-dialog';\n/**\n * The `ModalDialog` displays over the video and its controls, which blocks\n * interaction with the player until it is closed.\n *\n * Modal dialogs include a \"Close\" button and will close when that button\n * is activated - or when ESC is pressed anywhere.\n *\n * @extends Component\n */\n\nvar ModalDialog = /*#__PURE__*/function (_Component) {\n  _inheritsLoose(ModalDialog, _Component);\n\n  /**\n   * Create an instance of this class.\n   *\n   * @param {Player} player\n   *        The `Player` that this class should be attached to.\n   *\n   * @param {Object} [options]\n   *        The key/value store of player options.\n   *\n   * @param {Mixed} [options.content=undefined]\n   *        Provide customized content for this modal.\n   *\n   * @param {string} [options.description]\n   *        A text description for the modal, primarily for accessibility.\n   *\n   * @param {boolean} [options.fillAlways=false]\n   *        Normally, modals are automatically filled only the first time\n   *        they open. This tells the modal to refresh its content\n   *        every time it opens.\n   *\n   * @param {string} [options.label]\n   *        A text label for the modal, primarily for accessibility.\n   *\n   * @param {boolean} [options.pauseOnOpen=true]\n   *        If `true`, playback will will be paused if playing when\n   *        the modal opens, and resumed when it closes.\n   *\n   * @param {boolean} [options.temporary=true]\n   *        If `true`, the modal can only be opened once; it will be\n   *        disposed as soon as it's closed.\n   *\n   * @param {boolean} [options.uncloseable=false]\n   *        If `true`, the user will not be able to close the modal\n   *        through the UI in the normal ways. Programmatic closing is\n   *        still possible.\n   */\n  function ModalDialog(player, options) {\n    var _this;\n\n    _this = _Component.call(this, player, options) || this;\n\n    _this.handleKeyDown_ = function (e) {\n      return _this.handleKeyDown(e);\n    };\n\n    _this.close_ = function (e) {\n      return _this.close(e);\n    };\n\n    _this.opened_ = _this.hasBeenOpened_ = _this.hasBeenFilled_ = false;\n\n    _this.closeable(!_this.options_.uncloseable);\n\n    _this.content(_this.options_.content); // Make sure the contentEl is defined AFTER any children are initialized\n    // because we only want the contents of the modal in the contentEl\n    // (not the UI elements like the close button).\n\n\n    _this.contentEl_ = createEl('div', {\n      className: MODAL_CLASS_NAME + \"-content\"\n    }, {\n      role: 'document'\n    });\n    _this.descEl_ = createEl('p', {\n      className: MODAL_CLASS_NAME + \"-description vjs-control-text\",\n      id: _this.el().getAttribute('aria-describedby')\n    });\n    textContent(_this.descEl_, _this.description());\n\n    _this.el_.appendChild(_this.descEl_);\n\n    _this.el_.appendChild(_this.contentEl_);\n\n    return _this;\n  }\n  /**\n   * Create the `ModalDialog`'s DOM element\n   *\n   * @return {Element}\n   *         The DOM element that gets created.\n   */\n\n\n  var _proto = ModalDialog.prototype;\n\n  _proto.createEl = function createEl() {\n    return _Component.prototype.createEl.call(this, 'div', {\n      className: this.buildCSSClass(),\n      tabIndex: -1\n    }, {\n      'aria-describedby': this.id() + \"_description\",\n      'aria-hidden': 'true',\n      'aria-label': this.label(),\n      'role': 'dialog'\n    });\n  };\n\n  _proto.dispose = function dispose() {\n    this.contentEl_ = null;\n    this.descEl_ = null;\n    this.previouslyActiveEl_ = null;\n\n    _Component.prototype.dispose.call(this);\n  }\n  /**\n   * Builds the default DOM `className`.\n   *\n   * @return {string}\n   *         The DOM `className` for this object.\n   */\n  ;\n\n  _proto.buildCSSClass = function buildCSSClass() {\n    return MODAL_CLASS_NAME + \" vjs-hidden \" + _Component.prototype.buildCSSClass.call(this);\n  }\n  /**\n   * Returns the label string for this modal. Primarily used for accessibility.\n   *\n   * @return {string}\n   *         the localized or raw label of this modal.\n   */\n  ;\n\n  _proto.label = function label() {\n    return this.localize(this.options_.label || 'Modal Window');\n  }\n  /**\n   * Returns the description string for this modal. Primarily used for\n   * accessibility.\n   *\n   * @return {string}\n   *         The localized or raw description of this modal.\n   */\n  ;\n\n  _proto.description = function description() {\n    var desc = this.options_.description || this.localize('This is a modal window.'); // Append a universal closeability message if the modal is closeable.\n\n    if (this.closeable()) {\n      desc += ' ' + this.localize('This modal can be closed by pressing the Escape key or activating the close button.');\n    }\n\n    return desc;\n  }\n  /**\n   * Opens the modal.\n   *\n   * @fires ModalDialog#beforemodalopen\n   * @fires ModalDialog#modalopen\n   */\n  ;\n\n  _proto.open = function open() {\n    if (!this.opened_) {\n      var player = this.player();\n      /**\n        * Fired just before a `ModalDialog` is opened.\n        *\n        * @event ModalDialog#beforemodalopen\n        * @type {EventTarget~Event}\n        */\n\n      this.trigger('beforemodalopen');\n      this.opened_ = true; // Fill content if the modal has never opened before and\n      // never been filled.\n\n      if (this.options_.fillAlways || !this.hasBeenOpened_ && !this.hasBeenFilled_) {\n        this.fill();\n      } // If the player was playing, pause it and take note of its previously\n      // playing state.\n\n\n      this.wasPlaying_ = !player.paused();\n\n      if (this.options_.pauseOnOpen && this.wasPlaying_) {\n        player.pause();\n      }\n\n      this.on('keydown', this.handleKeyDown_); // Hide controls and note if they were enabled.\n\n      this.hadControls_ = player.controls();\n      player.controls(false);\n      this.show();\n      this.conditionalFocus_();\n      this.el().setAttribute('aria-hidden', 'false');\n      /**\n        * Fired just after a `ModalDialog` is opened.\n        *\n        * @event ModalDialog#modalopen\n        * @type {EventTarget~Event}\n        */\n\n      this.trigger('modalopen');\n      this.hasBeenOpened_ = true;\n    }\n  }\n  /**\n   * If the `ModalDialog` is currently open or closed.\n   *\n   * @param  {boolean} [value]\n   *         If given, it will open (`true`) or close (`false`) the modal.\n   *\n   * @return {boolean}\n   *         the current open state of the modaldialog\n   */\n  ;\n\n  _proto.opened = function opened(value) {\n    if (typeof value === 'boolean') {\n      this[value ? 'open' : 'close']();\n    }\n\n    return this.opened_;\n  }\n  /**\n   * Closes the modal, does nothing if the `ModalDialog` is\n   * not open.\n   *\n   * @fires ModalDialog#beforemodalclose\n   * @fires ModalDialog#modalclose\n   */\n  ;\n\n  _proto.close = function close() {\n    if (!this.opened_) {\n      return;\n    }\n\n    var player = this.player();\n    /**\n      * Fired just before a `ModalDialog` is closed.\n      *\n      * @event ModalDialog#beforemodalclose\n      * @type {EventTarget~Event}\n      */\n\n    this.trigger('beforemodalclose');\n    this.opened_ = false;\n\n    if (this.wasPlaying_ && this.options_.pauseOnOpen) {\n      player.play();\n    }\n\n    this.off('keydown', this.handleKeyDown_);\n\n    if (this.hadControls_) {\n      player.controls(true);\n    }\n\n    this.hide();\n    this.el().setAttribute('aria-hidden', 'true');\n    /**\n      * Fired just after a `ModalDialog` is closed.\n      *\n      * @event ModalDialog#modalclose\n      * @type {EventTarget~Event}\n      */\n\n    this.trigger('modalclose');\n    this.conditionalBlur_();\n\n    if (this.options_.temporary) {\n      this.dispose();\n    }\n  }\n  /**\n   * Check to see if the `ModalDialog` is closeable via the UI.\n   *\n   * @param  {boolean} [value]\n   *         If given as a boolean, it will set the `closeable` option.\n   *\n   * @return {boolean}\n   *         Returns the final value of the closable option.\n   */\n  ;\n\n  _proto.closeable = function closeable(value) {\n    if (typeof value === 'boolean') {\n      var closeable = this.closeable_ = !!value;\n      var close = this.getChild('closeButton'); // If this is being made closeable and has no close button, add one.\n\n      if (closeable && !close) {\n        // The close button should be a child of the modal - not its\n        // content element, so temporarily change the content element.\n        var temp = this.contentEl_;\n        this.contentEl_ = this.el_;\n        close = this.addChild('closeButton', {\n          controlText: 'Close Modal Dialog'\n        });\n        this.contentEl_ = temp;\n        this.on(close, 'close', this.close_);\n      } // If this is being made uncloseable and has a close button, remove it.\n\n\n      if (!closeable && close) {\n        this.off(close, 'close', this.close_);\n        this.removeChild(close);\n        close.dispose();\n      }\n    }\n\n    return this.closeable_;\n  }\n  /**\n   * Fill the modal's content element with the modal's \"content\" option.\n   * The content element will be emptied before this change takes place.\n   */\n  ;\n\n  _proto.fill = function fill() {\n    this.fillWith(this.content());\n  }\n  /**\n   * Fill the modal's content element with arbitrary content.\n   * The content element will be emptied before this change takes place.\n   *\n   * @fires ModalDialog#beforemodalfill\n   * @fires ModalDialog#modalfill\n   *\n   * @param {Mixed} [content]\n   *        The same rules apply to this as apply to the `content` option.\n   */\n  ;\n\n  _proto.fillWith = function fillWith(content) {\n    var contentEl = this.contentEl();\n    var parentEl = contentEl.parentNode;\n    var nextSiblingEl = contentEl.nextSibling;\n    /**\n      * Fired just before a `ModalDialog` is filled with content.\n      *\n      * @event ModalDialog#beforemodalfill\n      * @type {EventTarget~Event}\n      */\n\n    this.trigger('beforemodalfill');\n    this.hasBeenFilled_ = true; // Detach the content element from the DOM before performing\n    // manipulation to avoid modifying the live DOM multiple times.\n\n    parentEl.removeChild(contentEl);\n    this.empty();\n    insertContent(contentEl, content);\n    /**\n     * Fired just after a `ModalDialog` is filled with content.\n     *\n     * @event ModalDialog#modalfill\n     * @type {EventTarget~Event}\n     */\n\n    this.trigger('modalfill'); // Re-inject the re-filled content element.\n\n    if (nextSiblingEl) {\n      parentEl.insertBefore(contentEl, nextSiblingEl);\n    } else {\n      parentEl.appendChild(contentEl);\n    } // make sure that the close button is last in the dialog DOM\n\n\n    var closeButton = this.getChild('closeButton');\n\n    if (closeButton) {\n      parentEl.appendChild(closeButton.el_);\n    }\n  }\n  /**\n   * Empties the content element. This happens anytime the modal is filled.\n   *\n   * @fires ModalDialog#beforemodalempty\n   * @fires ModalDialog#modalempty\n   */\n  ;\n\n  _proto.empty = function empty() {\n    /**\n    * Fired just before a `ModalDialog` is emptied.\n    *\n    * @event ModalDialog#beforemodalempty\n    * @type {EventTarget~Event}\n    */\n    this.trigger('beforemodalempty');\n    emptyEl(this.contentEl());\n    /**\n    * Fired just after a `ModalDialog` is emptied.\n    *\n    * @event ModalDialog#modalempty\n    * @type {EventTarget~Event}\n    */\n\n    this.trigger('modalempty');\n  }\n  /**\n   * Gets or sets the modal content, which gets normalized before being\n   * rendered into the DOM.\n   *\n   * This does not update the DOM or fill the modal, but it is called during\n   * that process.\n   *\n   * @param  {Mixed} [value]\n   *         If defined, sets the internal content value to be used on the\n   *         next call(s) to `fill`. This value is normalized before being\n   *         inserted. To \"clear\" the internal content value, pass `null`.\n   *\n   * @return {Mixed}\n   *         The current content of the modal dialog\n   */\n  ;\n\n  _proto.content = function content(value) {\n    if (typeof value !== 'undefined') {\n      this.content_ = value;\n    }\n\n    return this.content_;\n  }\n  /**\n   * conditionally focus the modal dialog if focus was previously on the player.\n   *\n   * @private\n   */\n  ;\n\n  _proto.conditionalFocus_ = function conditionalFocus_() {\n    var activeEl = document.activeElement;\n    var playerEl = this.player_.el_;\n    this.previouslyActiveEl_ = null;\n\n    if (playerEl.contains(activeEl) || playerEl === activeEl) {\n      this.previouslyActiveEl_ = activeEl;\n      this.focus();\n    }\n  }\n  /**\n   * conditionally blur the element and refocus the last focused element\n   *\n   * @private\n   */\n  ;\n\n  _proto.conditionalBlur_ = function conditionalBlur_() {\n    if (this.previouslyActiveEl_) {\n      this.previouslyActiveEl_.focus();\n      this.previouslyActiveEl_ = null;\n    }\n  }\n  /**\n   * Keydown handler. Attached when modal is focused.\n   *\n   * @listens keydown\n   */\n  ;\n\n  _proto.handleKeyDown = function handleKeyDown(event) {\n    // Do not allow keydowns to reach out of the modal dialog.\n    event.stopPropagation();\n\n    if (keycode.isEventKey(event, 'Escape') && this.closeable()) {\n      event.preventDefault();\n      this.close();\n      return;\n    } // exit early if it isn't a tab key\n\n\n    if (!keycode.isEventKey(event, 'Tab')) {\n      return;\n    }\n\n    var focusableEls = this.focusableEls_();\n    var activeEl = this.el_.querySelector(':focus');\n    var focusIndex;\n\n    for (var i = 0; i < focusableEls.length; i++) {\n      if (activeEl === focusableEls[i]) {\n        focusIndex = i;\n        break;\n      }\n    }\n\n    if (document.activeElement === this.el_) {\n      focusIndex = 0;\n    }\n\n    if (event.shiftKey && focusIndex === 0) {\n      focusableEls[focusableEls.length - 1].focus();\n      event.preventDefault();\n    } else if (!event.shiftKey && focusIndex === focusableEls.length - 1) {\n      focusableEls[0].focus();\n      event.preventDefault();\n    }\n  }\n  /**\n   * get all focusable elements\n   *\n   * @private\n   */\n  ;\n\n  _proto.focusableEls_ = function focusableEls_() {\n    var allChildren = this.el_.querySelectorAll('*');\n    return Array.prototype.filter.call(allChildren, function (child) {\n      return (child instanceof window.HTMLAnchorElement || child instanceof window.HTMLAreaElement) && child.hasAttribute('href') || (child instanceof window.HTMLInputElement || child instanceof window.HTMLSelectElement || child instanceof window.HTMLTextAreaElement || child instanceof window.HTMLButtonElement) && !child.hasAttribute('disabled') || child instanceof window.HTMLIFrameElement || child instanceof window.HTMLObjectElement || child instanceof window.HTMLEmbedElement || child.hasAttribute('tabindex') && child.getAttribute('tabindex') !== -1 || child.hasAttribute('contenteditable');\n    });\n  };\n\n  return ModalDialog;\n}(Component$1);\n/**\n * Default options for `ModalDialog` default options.\n *\n * @type {Object}\n * @private\n */\n\n\nModalDialog.prototype.options_ = {\n  pauseOnOpen: true,\n  temporary: true\n};\nComponent$1.registerComponent('ModalDialog', ModalDialog);\n\n/**\n * Common functionaliy between {@link TextTrackList}, {@link AudioTrackList}, and\n * {@link VideoTrackList}\n *\n * @extends EventTarget\n */\n\nvar TrackList = /*#__PURE__*/function (_EventTarget) {\n  _inheritsLoose(TrackList, _EventTarget);\n\n  /**\n   * Create an instance of this class\n   *\n   * @param {Track[]} tracks\n   *        A list of tracks to initialize the list with.\n   *\n   * @abstract\n   */\n  function TrackList(tracks) {\n    var _this;\n\n    if (tracks === void 0) {\n      tracks = [];\n    }\n\n    _this = _EventTarget.call(this) || this;\n    _this.tracks_ = [];\n    /**\n     * @memberof TrackList\n     * @member {number} length\n     *         The current number of `Track`s in the this Trackist.\n     * @instance\n     */\n\n    Object.defineProperty(_assertThisInitialized(_this), 'length', {\n      get: function get() {\n        return this.tracks_.length;\n      }\n    });\n\n    for (var i = 0; i < tracks.length; i++) {\n      _this.addTrack(tracks[i]);\n    }\n\n    return _this;\n  }\n  /**\n   * Add a {@link Track} to the `TrackList`\n   *\n   * @param {Track} track\n   *        The audio, video, or text track to add to the list.\n   *\n   * @fires TrackList#addtrack\n   */\n\n\n  var _proto = TrackList.prototype;\n\n  _proto.addTrack = function addTrack(track) {\n    var _this2 = this;\n\n    var index = this.tracks_.length;\n\n    if (!('' + index in this)) {\n      Object.defineProperty(this, index, {\n        get: function get() {\n          return this.tracks_[index];\n        }\n      });\n    } // Do not add duplicate tracks\n\n\n    if (this.tracks_.indexOf(track) === -1) {\n      this.tracks_.push(track);\n      /**\n       * Triggered when a track is added to a track list.\n       *\n       * @event TrackList#addtrack\n       * @type {EventTarget~Event}\n       * @property {Track} track\n       *           A reference to track that was added.\n       */\n\n      this.trigger({\n        track: track,\n        type: 'addtrack',\n        target: this\n      });\n    }\n    /**\n     * Triggered when a track label is changed.\n     *\n     * @event TrackList#addtrack\n     * @type {EventTarget~Event}\n     * @property {Track} track\n     *           A reference to track that was added.\n     */\n\n\n    track.labelchange_ = function () {\n      _this2.trigger({\n        track: track,\n        type: 'labelchange',\n        target: _this2\n      });\n    };\n\n    if (isEvented(track)) {\n      track.addEventListener('labelchange', track.labelchange_);\n    }\n  }\n  /**\n   * Remove a {@link Track} from the `TrackList`\n   *\n   * @param {Track} rtrack\n   *        The audio, video, or text track to remove from the list.\n   *\n   * @fires TrackList#removetrack\n   */\n  ;\n\n  _proto.removeTrack = function removeTrack(rtrack) {\n    var track;\n\n    for (var i = 0, l = this.length; i < l; i++) {\n      if (this[i] === rtrack) {\n        track = this[i];\n\n        if (track.off) {\n          track.off();\n        }\n\n        this.tracks_.splice(i, 1);\n        break;\n      }\n    }\n\n    if (!track) {\n      return;\n    }\n    /**\n     * Triggered when a track is removed from track list.\n     *\n     * @event TrackList#removetrack\n     * @type {EventTarget~Event}\n     * @property {Track} track\n     *           A reference to track that was removed.\n     */\n\n\n    this.trigger({\n      track: track,\n      type: 'removetrack',\n      target: this\n    });\n  }\n  /**\n   * Get a Track from the TrackList by a tracks id\n   *\n   * @param {string} id - the id of the track to get\n   * @method getTrackById\n   * @return {Track}\n   * @private\n   */\n  ;\n\n  _proto.getTrackById = function getTrackById(id) {\n    var result = null;\n\n    for (var i = 0, l = this.length; i < l; i++) {\n      var track = this[i];\n\n      if (track.id === id) {\n        result = track;\n        break;\n      }\n    }\n\n    return result;\n  };\n\n  return TrackList;\n}(EventTarget$2);\n/**\n * Triggered when a different track is selected/enabled.\n *\n * @event TrackList#change\n * @type {EventTarget~Event}\n */\n\n/**\n * Events that can be called with on + eventName. See {@link EventHandler}.\n *\n * @property {Object} TrackList#allowedEvents_\n * @private\n */\n\n\nTrackList.prototype.allowedEvents_ = {\n  change: 'change',\n  addtrack: 'addtrack',\n  removetrack: 'removetrack',\n  labelchange: 'labelchange'\n}; // emulate attribute EventHandler support to allow for feature detection\n\nfor (var event in TrackList.prototype.allowedEvents_) {\n  TrackList.prototype['on' + event] = null;\n}\n\n/**\n * Anywhere we call this function we diverge from the spec\n * as we only support one enabled audiotrack at a time\n *\n * @param {AudioTrackList} list\n *        list to work on\n *\n * @param {AudioTrack} track\n *        The track to skip\n *\n * @private\n */\n\nvar disableOthers$1 = function disableOthers(list, track) {\n  for (var i = 0; i < list.length; i++) {\n    if (!Object.keys(list[i]).length || track.id === list[i].id) {\n      continue;\n    } // another audio track is enabled, disable it\n\n\n    list[i].enabled = false;\n  }\n};\n/**\n * The current list of {@link AudioTrack} for a media file.\n *\n * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#audiotracklist}\n * @extends TrackList\n */\n\n\nvar AudioTrackList = /*#__PURE__*/function (_TrackList) {\n  _inheritsLoose(AudioTrackList, _TrackList);\n\n  /**\n   * Create an instance of this class.\n   *\n   * @param {AudioTrack[]} [tracks=[]]\n   *        A list of `AudioTrack` to instantiate the list with.\n   */\n  function AudioTrackList(tracks) {\n    var _this;\n\n    if (tracks === void 0) {\n      tracks = [];\n    }\n\n    // make sure only 1 track is enabled\n    // sorted from last index to first index\n    for (var i = tracks.length - 1; i >= 0; i--) {\n      if (tracks[i].enabled) {\n        disableOthers$1(tracks, tracks[i]);\n        break;\n      }\n    }\n\n    _this = _TrackList.call(this, tracks) || this;\n    _this.changing_ = false;\n    return _this;\n  }\n  /**\n   * Add an {@link AudioTrack} to the `AudioTrackList`.\n   *\n   * @param {AudioTrack} track\n   *        The AudioTrack to add to the list\n   *\n   * @fires TrackList#addtrack\n   */\n\n\n  var _proto = AudioTrackList.prototype;\n\n  _proto.addTrack = function addTrack(track) {\n    var _this2 = this;\n\n    if (track.enabled) {\n      disableOthers$1(this, track);\n    }\n\n    _TrackList.prototype.addTrack.call(this, track); // native tracks don't have this\n\n\n    if (!track.addEventListener) {\n      return;\n    }\n\n    track.enabledChange_ = function () {\n      // when we are disabling other tracks (since we don't support\n      // more than one track at a time) we will set changing_\n      // to true so that we don't trigger additional change events\n      if (_this2.changing_) {\n        return;\n      }\n\n      _this2.changing_ = true;\n      disableOthers$1(_this2, track);\n      _this2.changing_ = false;\n\n      _this2.trigger('change');\n    };\n    /**\n     * @listens AudioTrack#enabledchange\n     * @fires TrackList#change\n     */\n\n\n    track.addEventListener('enabledchange', track.enabledChange_);\n  };\n\n  _proto.removeTrack = function removeTrack(rtrack) {\n    _TrackList.prototype.removeTrack.call(this, rtrack);\n\n    if (rtrack.removeEventListener && rtrack.enabledChange_) {\n      rtrack.removeEventListener('enabledchange', rtrack.enabledChange_);\n      rtrack.enabledChange_ = null;\n    }\n  };\n\n  return AudioTrackList;\n}(TrackList);\n\n/**\n * Un-select all other {@link VideoTrack}s that are selected.\n *\n * @param {VideoTrackList} list\n *        list to work on\n *\n * @param {VideoTrack} track\n *        The track to skip\n *\n * @private\n */\n\nvar disableOthers = function disableOthers(list, track) {\n  for (var i = 0; i < list.length; i++) {\n    if (!Object.keys(list[i]).length || track.id === list[i].id) {\n      continue;\n    } // another video track is enabled, disable it\n\n\n    list[i].selected = false;\n  }\n};\n/**\n * The current list of {@link VideoTrack} for a video.\n *\n * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#videotracklist}\n * @extends TrackList\n */\n\n\nvar VideoTrackList = /*#__PURE__*/function (_TrackList) {\n  _inheritsLoose(VideoTrackList, _TrackList);\n\n  /**\n   * Create an instance of this class.\n   *\n   * @param {VideoTrack[]} [tracks=[]]\n   *        A list of `VideoTrack` to instantiate the list with.\n   */\n  function VideoTrackList(tracks) {\n    var _this;\n\n    if (tracks === void 0) {\n      tracks = [];\n    }\n\n    // make sure only 1 track is enabled\n    // sorted from last index to first index\n    for (var i = tracks.length - 1; i >= 0; i--) {\n      if (tracks[i].selected) {\n        disableOthers(tracks, tracks[i]);\n        break;\n      }\n    }\n\n    _this = _TrackList.call(this, tracks) || this;\n    _this.changing_ = false;\n    /**\n     * @member {number} VideoTrackList#selectedIndex\n     *         The current index of the selected {@link VideoTrack`}.\n     */\n\n    Object.defineProperty(_assertThisInitialized(_this), 'selectedIndex', {\n      get: function get() {\n        for (var _i = 0; _i < this.length; _i++) {\n          if (this[_i].selected) {\n            return _i;\n          }\n        }\n\n        return -1;\n      },\n      set: function set() {}\n    });\n    return _this;\n  }\n  /**\n   * Add a {@link VideoTrack} to the `VideoTrackList`.\n   *\n   * @param {VideoTrack} track\n   *        The VideoTrack to add to the list\n   *\n   * @fires TrackList#addtrack\n   */\n\n\n  var _proto = VideoTrackList.prototype;\n\n  _proto.addTrack = function addTrack(track) {\n    var _this2 = this;\n\n    if (track.selected) {\n      disableOthers(this, track);\n    }\n\n    _TrackList.prototype.addTrack.call(this, track); // native tracks don't have this\n\n\n    if (!track.addEventListener) {\n      return;\n    }\n\n    track.selectedChange_ = function () {\n      if (_this2.changing_) {\n        return;\n      }\n\n      _this2.changing_ = true;\n      disableOthers(_this2, track);\n      _this2.changing_ = false;\n\n      _this2.trigger('change');\n    };\n    /**\n     * @listens VideoTrack#selectedchange\n     * @fires TrackList#change\n     */\n\n\n    track.addEventListener('selectedchange', track.selectedChange_);\n  };\n\n  _proto.removeTrack = function removeTrack(rtrack) {\n    _TrackList.prototype.removeTrack.call(this, rtrack);\n\n    if (rtrack.removeEventListener && rtrack.selectedChange_) {\n      rtrack.removeEventListener('selectedchange', rtrack.selectedChange_);\n      rtrack.selectedChange_ = null;\n    }\n  };\n\n  return VideoTrackList;\n}(TrackList);\n\n/**\n * The current list of {@link TextTrack} for a media file.\n *\n * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#texttracklist}\n * @extends TrackList\n */\n\nvar TextTrackList = /*#__PURE__*/function (_TrackList) {\n  _inheritsLoose(TextTrackList, _TrackList);\n\n  function TextTrackList() {\n    return _TrackList.apply(this, arguments) || this;\n  }\n\n  var _proto = TextTrackList.prototype;\n\n  /**\n   * Add a {@link TextTrack} to the `TextTrackList`\n   *\n   * @param {TextTrack} track\n   *        The text track to add to the list.\n   *\n   * @fires TrackList#addtrack\n   */\n  _proto.addTrack = function addTrack(track) {\n    var _this = this;\n\n    _TrackList.prototype.addTrack.call(this, track);\n\n    if (!this.queueChange_) {\n      this.queueChange_ = function () {\n        return _this.queueTrigger('change');\n      };\n    }\n\n    if (!this.triggerSelectedlanguagechange) {\n      this.triggerSelectedlanguagechange_ = function () {\n        return _this.trigger('selectedlanguagechange');\n      };\n    }\n    /**\n     * @listens TextTrack#modechange\n     * @fires TrackList#change\n     */\n\n\n    track.addEventListener('modechange', this.queueChange_);\n    var nonLanguageTextTrackKind = ['metadata', 'chapters'];\n\n    if (nonLanguageTextTrackKind.indexOf(track.kind) === -1) {\n      track.addEventListener('modechange', this.triggerSelectedlanguagechange_);\n    }\n  };\n\n  _proto.removeTrack = function removeTrack(rtrack) {\n    _TrackList.prototype.removeTrack.call(this, rtrack); // manually remove the event handlers we added\n\n\n    if (rtrack.removeEventListener) {\n      if (this.queueChange_) {\n        rtrack.removeEventListener('modechange', this.queueChange_);\n      }\n\n      if (this.selectedlanguagechange_) {\n        rtrack.removeEventListener('modechange', this.triggerSelectedlanguagechange_);\n      }\n    }\n  };\n\n  return TextTrackList;\n}(TrackList);\n\n/**\n * @file html-track-element-list.js\n */\n\n/**\n * The current list of {@link HtmlTrackElement}s.\n */\nvar HtmlTrackElementList = /*#__PURE__*/function () {\n  /**\n   * Create an instance of this class.\n   *\n   * @param {HtmlTrackElement[]} [tracks=[]]\n   *        A list of `HtmlTrackElement` to instantiate the list with.\n   */\n  function HtmlTrackElementList(trackElements) {\n    if (trackElements === void 0) {\n      trackElements = [];\n    }\n\n    this.trackElements_ = [];\n    /**\n     * @memberof HtmlTrackElementList\n     * @member {number} length\n     *         The current number of `Track`s in the this Trackist.\n     * @instance\n     */\n\n    Object.defineProperty(this, 'length', {\n      get: function get() {\n        return this.trackElements_.length;\n      }\n    });\n\n    for (var i = 0, length = trackElements.length; i < length; i++) {\n      this.addTrackElement_(trackElements[i]);\n    }\n  }\n  /**\n   * Add an {@link HtmlTrackElement} to the `HtmlTrackElementList`\n   *\n   * @param {HtmlTrackElement} trackElement\n   *        The track element to add to the list.\n   *\n   * @private\n   */\n\n\n  var _proto = HtmlTrackElementList.prototype;\n\n  _proto.addTrackElement_ = function addTrackElement_(trackElement) {\n    var index = this.trackElements_.length;\n\n    if (!('' + index in this)) {\n      Object.defineProperty(this, index, {\n        get: function get() {\n          return this.trackElements_[index];\n        }\n      });\n    } // Do not add duplicate elements\n\n\n    if (this.trackElements_.indexOf(trackElement) === -1) {\n      this.trackElements_.push(trackElement);\n    }\n  }\n  /**\n   * Get an {@link HtmlTrackElement} from the `HtmlTrackElementList` given an\n   * {@link TextTrack}.\n   *\n   * @param {TextTrack} track\n   *        The track associated with a track element.\n   *\n   * @return {HtmlTrackElement|undefined}\n   *         The track element that was found or undefined.\n   *\n   * @private\n   */\n  ;\n\n  _proto.getTrackElementByTrack_ = function getTrackElementByTrack_(track) {\n    var trackElement_;\n\n    for (var i = 0, length = this.trackElements_.length; i < length; i++) {\n      if (track === this.trackElements_[i].track) {\n        trackElement_ = this.trackElements_[i];\n        break;\n      }\n    }\n\n    return trackElement_;\n  }\n  /**\n   * Remove a {@link HtmlTrackElement} from the `HtmlTrackElementList`\n   *\n   * @param {HtmlTrackElement} trackElement\n   *        The track element to remove from the list.\n   *\n   * @private\n   */\n  ;\n\n  _proto.removeTrackElement_ = function removeTrackElement_(trackElement) {\n    for (var i = 0, length = this.trackElements_.length; i < length; i++) {\n      if (trackElement === this.trackElements_[i]) {\n        if (this.trackElements_[i].track && typeof this.trackElements_[i].track.off === 'function') {\n          this.trackElements_[i].track.off();\n        }\n\n        if (typeof this.trackElements_[i].off === 'function') {\n          this.trackElements_[i].off();\n        }\n\n        this.trackElements_.splice(i, 1);\n        break;\n      }\n    }\n  };\n\n  return HtmlTrackElementList;\n}();\n\n/**\n * @file text-track-cue-list.js\n */\n\n/**\n * @typedef {Object} TextTrackCueList~TextTrackCue\n *\n * @property {string} id\n *           The unique id for this text track cue\n *\n * @property {number} startTime\n *           The start time for this text track cue\n *\n * @property {number} endTime\n *           The end time for this text track cue\n *\n * @property {boolean} pauseOnExit\n *           Pause when the end time is reached if true.\n *\n * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#texttrackcue}\n */\n\n/**\n * A List of TextTrackCues.\n *\n * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#texttrackcuelist}\n */\nvar TextTrackCueList = /*#__PURE__*/function () {\n  /**\n   * Create an instance of this class..\n   *\n   * @param {Array} cues\n   *        A list of cues to be initialized with\n   */\n  function TextTrackCueList(cues) {\n    TextTrackCueList.prototype.setCues_.call(this, cues);\n    /**\n     * @memberof TextTrackCueList\n     * @member {number} length\n     *         The current number of `TextTrackCue`s in the TextTrackCueList.\n     * @instance\n     */\n\n    Object.defineProperty(this, 'length', {\n      get: function get() {\n        return this.length_;\n      }\n    });\n  }\n  /**\n   * A setter for cues in this list. Creates getters\n   * an an index for the cues.\n   *\n   * @param {Array} cues\n   *        An array of cues to set\n   *\n   * @private\n   */\n\n\n  var _proto = TextTrackCueList.prototype;\n\n  _proto.setCues_ = function setCues_(cues) {\n    var oldLength = this.length || 0;\n    var i = 0;\n    var l = cues.length;\n    this.cues_ = cues;\n    this.length_ = cues.length;\n\n    var defineProp = function defineProp(index) {\n      if (!('' + index in this)) {\n        Object.defineProperty(this, '' + index, {\n          get: function get() {\n            return this.cues_[index];\n          }\n        });\n      }\n    };\n\n    if (oldLength < l) {\n      i = oldLength;\n\n      for (; i < l; i++) {\n        defineProp.call(this, i);\n      }\n    }\n  }\n  /**\n   * Get a `TextTrackCue` that is currently in the `TextTrackCueList` by id.\n   *\n   * @param {string} id\n   *        The id of the cue that should be searched for.\n   *\n   * @return {TextTrackCueList~TextTrackCue|null}\n   *         A single cue or null if none was found.\n   */\n  ;\n\n  _proto.getCueById = function getCueById(id) {\n    var result = null;\n\n    for (var i = 0, l = this.length; i < l; i++) {\n      var cue = this[i];\n\n      if (cue.id === id) {\n        result = cue;\n        break;\n      }\n    }\n\n    return result;\n  };\n\n  return TextTrackCueList;\n}();\n\n/**\n * @file track-kinds.js\n */\n\n/**\n * All possible `VideoTrackKind`s\n *\n * @see https://html.spec.whatwg.org/multipage/embedded-content.html#dom-videotrack-kind\n * @typedef VideoTrack~Kind\n * @enum\n */\nvar VideoTrackKind = {\n  alternative: 'alternative',\n  captions: 'captions',\n  main: 'main',\n  sign: 'sign',\n  subtitles: 'subtitles',\n  commentary: 'commentary'\n};\n/**\n * All possible `AudioTrackKind`s\n *\n * @see https://html.spec.whatwg.org/multipage/embedded-content.html#dom-audiotrack-kind\n * @typedef AudioTrack~Kind\n * @enum\n */\n\nvar AudioTrackKind = {\n  'alternative': 'alternative',\n  'descriptions': 'descriptions',\n  'main': 'main',\n  'main-desc': 'main-desc',\n  'translation': 'translation',\n  'commentary': 'commentary'\n};\n/**\n * All possible `TextTrackKind`s\n *\n * @see https://html.spec.whatwg.org/multipage/embedded-content.html#dom-texttrack-kind\n * @typedef TextTrack~Kind\n * @enum\n */\n\nvar TextTrackKind = {\n  subtitles: 'subtitles',\n  captions: 'captions',\n  descriptions: 'descriptions',\n  chapters: 'chapters',\n  metadata: 'metadata'\n};\n/**\n * All possible `TextTrackMode`s\n *\n * @see https://html.spec.whatwg.org/multipage/embedded-content.html#texttrackmode\n * @typedef TextTrack~Mode\n * @enum\n */\n\nvar TextTrackMode = {\n  disabled: 'disabled',\n  hidden: 'hidden',\n  showing: 'showing'\n};\n\n/**\n * A Track class that contains all of the common functionality for {@link AudioTrack},\n * {@link VideoTrack}, and {@link TextTrack}.\n *\n * > Note: This class should not be used directly\n *\n * @see {@link https://html.spec.whatwg.org/multipage/embedded-content.html}\n * @extends EventTarget\n * @abstract\n */\n\nvar Track = /*#__PURE__*/function (_EventTarget) {\n  _inheritsLoose(Track, _EventTarget);\n\n  /**\n   * Create an instance of this class.\n   *\n   * @param {Object} [options={}]\n   *        Object of option names and values\n   *\n   * @param {string} [options.kind='']\n   *        A valid kind for the track type you are creating.\n   *\n   * @param {string} [options.id='vjs_track_' + Guid.newGUID()]\n   *        A unique id for this AudioTrack.\n   *\n   * @param {string} [options.label='']\n   *        The menu label for this track.\n   *\n   * @param {string} [options.language='']\n   *        A valid two character language code.\n   *\n   * @abstract\n   */\n  function Track(options) {\n    var _this;\n\n    if (options === void 0) {\n      options = {};\n    }\n\n    _this = _EventTarget.call(this) || this;\n    var trackProps = {\n      id: options.id || 'vjs_track_' + newGUID(),\n      kind: options.kind || '',\n      language: options.language || ''\n    };\n    var label = options.label || '';\n    /**\n     * @memberof Track\n     * @member {string} id\n     *         The id of this track. Cannot be changed after creation.\n     * @instance\n     *\n     * @readonly\n     */\n\n    /**\n     * @memberof Track\n     * @member {string} kind\n     *         The kind of track that this is. Cannot be changed after creation.\n     * @instance\n     *\n     * @readonly\n     */\n\n    /**\n     * @memberof Track\n     * @member {string} language\n     *         The two letter language code for this track. Cannot be changed after\n     *         creation.\n     * @instance\n     *\n     * @readonly\n     */\n\n    var _loop = function _loop(key) {\n      Object.defineProperty(_assertThisInitialized(_this), key, {\n        get: function get() {\n          return trackProps[key];\n        },\n        set: function set() {}\n      });\n    };\n\n    for (var key in trackProps) {\n      _loop(key);\n    }\n    /**\n     * @memberof Track\n     * @member {string} label\n     *         The label of this track. Cannot be changed after creation.\n     * @instance\n     *\n     * @fires Track#labelchange\n     */\n\n\n    Object.defineProperty(_assertThisInitialized(_this), 'label', {\n      get: function get() {\n        return label;\n      },\n      set: function set(newLabel) {\n        if (newLabel !== label) {\n          label = newLabel;\n          /**\n           * An event that fires when label changes on this track.\n           *\n           * > Note: This is not part of the spec!\n           *\n           * @event Track#labelchange\n           * @type {EventTarget~Event}\n           */\n\n          this.trigger('labelchange');\n        }\n      }\n    });\n    return _this;\n  }\n\n  return Track;\n}(EventTarget$2);\n\n/**\n * @file url.js\n * @module url\n */\n/**\n * @typedef {Object} url:URLObject\n *\n * @property {string} protocol\n *           The protocol of the url that was parsed.\n *\n * @property {string} hostname\n *           The hostname of the url that was parsed.\n *\n * @property {string} port\n *           The port of the url that was parsed.\n *\n * @property {string} pathname\n *           The pathname of the url that was parsed.\n *\n * @property {string} search\n *           The search query of the url that was parsed.\n *\n * @property {string} hash\n *           The hash of the url that was parsed.\n *\n * @property {string} host\n *           The host of the url that was parsed.\n */\n\n/**\n * Resolve and parse the elements of a URL.\n *\n * @function\n * @param    {String} url\n *           The url to parse\n *\n * @return   {url:URLObject}\n *           An object of url details\n */\n\nvar parseUrl = function parseUrl(url) {\n  // This entire method can be replace with URL once we are able to drop IE11\n  var props = ['protocol', 'hostname', 'port', 'pathname', 'search', 'hash', 'host']; // add the url to an anchor and let the browser parse the URL\n\n  var a = document.createElement('a');\n  a.href = url; // Copy the specific URL properties to a new object\n  // This is also needed for IE because the anchor loses its\n  // properties when it's removed from the dom\n\n  var details = {};\n\n  for (var i = 0; i < props.length; i++) {\n    details[props[i]] = a[props[i]];\n  } // IE adds the port to the host property unlike everyone else. If\n  // a port identifier is added for standard ports, strip it.\n\n\n  if (details.protocol === 'http:') {\n    details.host = details.host.replace(/:80$/, '');\n  }\n\n  if (details.protocol === 'https:') {\n    details.host = details.host.replace(/:443$/, '');\n  }\n\n  if (!details.protocol) {\n    details.protocol = window.location.protocol;\n  }\n  /* istanbul ignore if */\n\n\n  if (!details.host) {\n    details.host = window.location.host;\n  }\n\n  return details;\n};\n/**\n * Get absolute version of relative URL. Used to tell Flash the correct URL.\n *\n * @function\n * @param    {string} url\n *           URL to make absolute\n *\n * @return   {string}\n *           Absolute URL\n *\n * @see      http://stackoverflow.com/questions/470832/getting-an-absolute-url-from-a-relative-one-ie6-issue\n */\n\nvar getAbsoluteURL = function getAbsoluteURL(url) {\n  // Check if absolute URL\n  if (!url.match(/^https?:\\/\\//)) {\n    // Convert to absolute URL. Flash hosted off-site needs an absolute URL.\n    // add the url to an anchor and let the browser parse the URL\n    var a = document.createElement('a');\n    a.href = url;\n    url = a.href;\n  }\n\n  return url;\n};\n/**\n * Returns the extension of the passed file name. It will return an empty string\n * if passed an invalid path.\n *\n * @function\n * @param    {string} path\n *           The fileName path like '/path/to/file.mp4'\n *\n * @return  {string}\n *           The extension in lower case or an empty string if no\n *           extension could be found.\n */\n\nvar getFileExtension = function getFileExtension(path) {\n  if (typeof path === 'string') {\n    var splitPathRe = /^(\\/?)([\\s\\S]*?)((?:\\.{1,2}|[^\\/]+?)(\\.([^\\.\\/\\?]+)))(?:[\\/]*|[\\?].*)$/;\n    var pathParts = splitPathRe.exec(path);\n\n    if (pathParts) {\n      return pathParts.pop().toLowerCase();\n    }\n  }\n\n  return '';\n};\n/**\n * Returns whether the url passed is a cross domain request or not.\n *\n * @function\n * @param    {string} url\n *           The url to check.\n *\n * @param    {Object} [winLoc]\n *           the domain to check the url against, defaults to window.location\n *\n * @param    {string} [winLoc.protocol]\n *           The window location protocol defaults to window.location.protocol\n *\n * @param    {string} [winLoc.host]\n *           The window location host defaults to window.location.host\n *\n * @return   {boolean}\n *           Whether it is a cross domain request or not.\n */\n\nvar isCrossOrigin = function isCrossOrigin(url, winLoc) {\n  if (winLoc === void 0) {\n    winLoc = window.location;\n  }\n\n  var urlInfo = parseUrl(url); // IE8 protocol relative urls will return ':' for protocol\n\n  var srcProtocol = urlInfo.protocol === ':' ? winLoc.protocol : urlInfo.protocol; // Check if url is for another domain/origin\n  // IE8 doesn't know location.origin, so we won't rely on it here\n\n  var crossOrigin = srcProtocol + urlInfo.host !== winLoc.protocol + winLoc.host;\n  return crossOrigin;\n};\n\nvar Url = /*#__PURE__*/Object.freeze({\n  __proto__: null,\n  parseUrl: parseUrl,\n  getAbsoluteURL: getAbsoluteURL,\n  getFileExtension: getFileExtension,\n  isCrossOrigin: isCrossOrigin\n});\n\n/**\n * Takes a webvtt file contents and parses it into cues\n *\n * @param {string} srcContent\n *        webVTT file contents\n *\n * @param {TextTrack} track\n *        TextTrack to add cues to. Cues come from the srcContent.\n *\n * @private\n */\n\nvar parseCues = function parseCues(srcContent, track) {\n  var parser = new window.WebVTT.Parser(window, window.vttjs, window.WebVTT.StringDecoder());\n  var errors = [];\n\n  parser.oncue = function (cue) {\n    track.addCue(cue);\n  };\n\n  parser.onparsingerror = function (error) {\n    errors.push(error);\n  };\n\n  parser.onflush = function () {\n    track.trigger({\n      type: 'loadeddata',\n      target: track\n    });\n  };\n\n  parser.parse(srcContent);\n\n  if (errors.length > 0) {\n    if (window.console && window.console.groupCollapsed) {\n      window.console.groupCollapsed(\"Text Track parsing errors for \" + track.src);\n    }\n\n    errors.forEach(function (error) {\n      return log$1.error(error);\n    });\n\n    if (window.console && window.console.groupEnd) {\n      window.console.groupEnd();\n    }\n  }\n\n  parser.flush();\n};\n/**\n * Load a `TextTrack` from a specified url.\n *\n * @param {string} src\n *        Url to load track from.\n *\n * @param {TextTrack} track\n *        Track to add cues to. Comes from the content at the end of `url`.\n *\n * @private\n */\n\n\nvar loadTrack = function loadTrack(src, track) {\n  var opts = {\n    uri: src\n  };\n  var crossOrigin = isCrossOrigin(src);\n\n  if (crossOrigin) {\n    opts.cors = crossOrigin;\n  }\n\n  var withCredentials = track.tech_.crossOrigin() === 'use-credentials';\n\n  if (withCredentials) {\n    opts.withCredentials = withCredentials;\n  }\n\n  XHR(opts, bind(this, function (err, response, responseBody) {\n    if (err) {\n      return log$1.error(err, response);\n    }\n\n    track.loaded_ = true; // Make sure that vttjs has loaded, otherwise, wait till it finished loading\n    // NOTE: this is only used for the alt/video.novtt.js build\n\n    if (typeof window.WebVTT !== 'function') {\n      if (track.tech_) {\n        // to prevent use before define eslint error, we define loadHandler\n        // as a let here\n        track.tech_.any(['vttjsloaded', 'vttjserror'], function (event) {\n          if (event.type === 'vttjserror') {\n            log$1.error(\"vttjs failed to load, stopping trying to process \" + track.src);\n            return;\n          }\n\n          return parseCues(responseBody, track);\n        });\n      }\n    } else {\n      parseCues(responseBody, track);\n    }\n  }));\n};\n/**\n * A representation of a single `TextTrack`.\n *\n * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#texttrack}\n * @extends Track\n */\n\n\nvar TextTrack = /*#__PURE__*/function (_Track) {\n  _inheritsLoose(TextTrack, _Track);\n\n  /**\n   * Create an instance of this class.\n   *\n   * @param {Object} options={}\n   *        Object of option names and values\n   *\n   * @param {Tech} options.tech\n   *        A reference to the tech that owns this TextTrack.\n   *\n   * @param {TextTrack~Kind} [options.kind='subtitles']\n   *        A valid text track kind.\n   *\n   * @param {TextTrack~Mode} [options.mode='disabled']\n   *        A valid text track mode.\n   *\n   * @param {string} [options.id='vjs_track_' + Guid.newGUID()]\n   *        A unique id for this TextTrack.\n   *\n   * @param {string} [options.label='']\n   *        The menu label for this track.\n   *\n   * @param {string} [options.language='']\n   *        A valid two character language code.\n   *\n   * @param {string} [options.srclang='']\n   *        A valid two character language code. An alternative, but deprioritized\n   *        version of `options.language`\n   *\n   * @param {string} [options.src]\n   *        A url to TextTrack cues.\n   *\n   * @param {boolean} [options.default]\n   *        If this track should default to on or off.\n   */\n  function TextTrack(options) {\n    var _this;\n\n    if (options === void 0) {\n      options = {};\n    }\n\n    if (!options.tech) {\n      throw new Error('A tech was not provided.');\n    }\n\n    var settings = mergeOptions$3(options, {\n      kind: TextTrackKind[options.kind] || 'subtitles',\n      language: options.language || options.srclang || ''\n    });\n    var mode = TextTrackMode[settings.mode] || 'disabled';\n    var default_ = settings[\"default\"];\n\n    if (settings.kind === 'metadata' || settings.kind === 'chapters') {\n      mode = 'hidden';\n    }\n\n    _this = _Track.call(this, settings) || this;\n    _this.tech_ = settings.tech;\n    _this.cues_ = [];\n    _this.activeCues_ = [];\n    _this.preload_ = _this.tech_.preloadTextTracks !== false;\n    var cues = new TextTrackCueList(_this.cues_);\n    var activeCues = new TextTrackCueList(_this.activeCues_);\n    var changed = false;\n    var timeupdateHandler = bind(_assertThisInitialized(_this), function () {\n      if (!this.tech_.isReady_ || this.tech_.isDisposed()) {\n        return;\n      } // Accessing this.activeCues for the side-effects of updating itself\n      // due to its nature as a getter function. Do not remove or cues will\n      // stop updating!\n      // Use the setter to prevent deletion from uglify (pure_getters rule)\n\n\n      this.activeCues = this.activeCues;\n\n      if (changed) {\n        this.trigger('cuechange');\n        changed = false;\n      }\n    });\n\n    var disposeHandler = function disposeHandler() {\n      _this.tech_.off('timeupdate', timeupdateHandler);\n    };\n\n    _this.tech_.one('dispose', disposeHandler);\n\n    if (mode !== 'disabled') {\n      _this.tech_.on('timeupdate', timeupdateHandler);\n    }\n\n    Object.defineProperties(_assertThisInitialized(_this), {\n      /**\n       * @memberof TextTrack\n       * @member {boolean} default\n       *         If this track was set to be on or off by default. Cannot be changed after\n       *         creation.\n       * @instance\n       *\n       * @readonly\n       */\n      \"default\": {\n        get: function get() {\n          return default_;\n        },\n        set: function set() {}\n      },\n\n      /**\n       * @memberof TextTrack\n       * @member {string} mode\n       *         Set the mode of this TextTrack to a valid {@link TextTrack~Mode}. Will\n       *         not be set if setting to an invalid mode.\n       * @instance\n       *\n       * @fires TextTrack#modechange\n       */\n      mode: {\n        get: function get() {\n          return mode;\n        },\n        set: function set(newMode) {\n          if (!TextTrackMode[newMode]) {\n            return;\n          }\n\n          if (mode === newMode) {\n            return;\n          }\n\n          mode = newMode;\n\n          if (!this.preload_ && mode !== 'disabled' && this.cues.length === 0) {\n            // On-demand load.\n            loadTrack(this.src, this);\n          }\n\n          this.tech_.off('timeupdate', timeupdateHandler);\n\n          if (mode !== 'disabled') {\n            this.tech_.on('timeupdate', timeupdateHandler);\n          }\n          /**\n           * An event that fires when mode changes on this track. This allows\n           * the TextTrackList that holds this track to act accordingly.\n           *\n           * > Note: This is not part of the spec!\n           *\n           * @event TextTrack#modechange\n           * @type {EventTarget~Event}\n           */\n\n\n          this.trigger('modechange');\n        }\n      },\n\n      /**\n       * @memberof TextTrack\n       * @member {TextTrackCueList} cues\n       *         The text track cue list for this TextTrack.\n       * @instance\n       */\n      cues: {\n        get: function get() {\n          if (!this.loaded_) {\n            return null;\n          }\n\n          return cues;\n        },\n        set: function set() {}\n      },\n\n      /**\n       * @memberof TextTrack\n       * @member {TextTrackCueList} activeCues\n       *         The list text track cues that are currently active for this TextTrack.\n       * @instance\n       */\n      activeCues: {\n        get: function get() {\n          if (!this.loaded_) {\n            return null;\n          } // nothing to do\n\n\n          if (this.cues.length === 0) {\n            return activeCues;\n          }\n\n          var ct = this.tech_.currentTime();\n          var active = [];\n\n          for (var i = 0, l = this.cues.length; i < l; i++) {\n            var cue = this.cues[i];\n\n            if (cue.startTime <= ct && cue.endTime >= ct) {\n              active.push(cue);\n            } else if (cue.startTime === cue.endTime && cue.startTime <= ct && cue.startTime + 0.5 >= ct) {\n              active.push(cue);\n            }\n          }\n\n          changed = false;\n\n          if (active.length !== this.activeCues_.length) {\n            changed = true;\n          } else {\n            for (var _i = 0; _i < active.length; _i++) {\n              if (this.activeCues_.indexOf(active[_i]) === -1) {\n                changed = true;\n              }\n            }\n          }\n\n          this.activeCues_ = active;\n          activeCues.setCues_(this.activeCues_);\n          return activeCues;\n        },\n        // /!\\ Keep this setter empty (see the timeupdate handler above)\n        set: function set() {}\n      }\n    });\n\n    if (settings.src) {\n      _this.src = settings.src;\n\n      if (!_this.preload_) {\n        // Tracks will load on-demand.\n        // Act like we're loaded for other purposes.\n        _this.loaded_ = true;\n      }\n\n      if (_this.preload_ || settings.kind !== 'subtitles' && settings.kind !== 'captions') {\n        loadTrack(_this.src, _assertThisInitialized(_this));\n      }\n    } else {\n      _this.loaded_ = true;\n    }\n\n    return _this;\n  }\n  /**\n   * Add a cue to the internal list of cues.\n   *\n   * @param {TextTrack~Cue} cue\n   *        The cue to add to our internal list\n   */\n\n\n  var _proto = TextTrack.prototype;\n\n  _proto.addCue = function addCue(originalCue) {\n    var cue = originalCue;\n\n    if (window.vttjs && !(originalCue instanceof window.vttjs.VTTCue)) {\n      cue = new window.vttjs.VTTCue(originalCue.startTime, originalCue.endTime, originalCue.text);\n\n      for (var prop in originalCue) {\n        if (!(prop in cue)) {\n          cue[prop] = originalCue[prop];\n        }\n      } // make sure that `id` is copied over\n\n\n      cue.id = originalCue.id;\n      cue.originalCue_ = originalCue;\n    }\n\n    var tracks = this.tech_.textTracks();\n\n    for (var i = 0; i < tracks.length; i++) {\n      if (tracks[i] !== this) {\n        tracks[i].removeCue(cue);\n      }\n    }\n\n    this.cues_.push(cue);\n    this.cues.setCues_(this.cues_);\n  }\n  /**\n   * Remove a cue from our internal list\n   *\n   * @param {TextTrack~Cue} removeCue\n   *        The cue to remove from our internal list\n   */\n  ;\n\n  _proto.removeCue = function removeCue(_removeCue) {\n    var i = this.cues_.length;\n\n    while (i--) {\n      var cue = this.cues_[i];\n\n      if (cue === _removeCue || cue.originalCue_ && cue.originalCue_ === _removeCue) {\n        this.cues_.splice(i, 1);\n        this.cues.setCues_(this.cues_);\n        break;\n      }\n    }\n  };\n\n  return TextTrack;\n}(Track);\n/**\n * cuechange - One or more cues in the track have become active or stopped being active.\n */\n\n\nTextTrack.prototype.allowedEvents_ = {\n  cuechange: 'cuechange'\n};\n\n/**\n * A representation of a single `AudioTrack`. If it is part of an {@link AudioTrackList}\n * only one `AudioTrack` in the list will be enabled at a time.\n *\n * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#audiotrack}\n * @extends Track\n */\n\nvar AudioTrack = /*#__PURE__*/function (_Track) {\n  _inheritsLoose(AudioTrack, _Track);\n\n  /**\n   * Create an instance of this class.\n   *\n   * @param {Object} [options={}]\n   *        Object of option names and values\n   *\n   * @param {AudioTrack~Kind} [options.kind='']\n   *        A valid audio track kind\n   *\n   * @param {string} [options.id='vjs_track_' + Guid.newGUID()]\n   *        A unique id for this AudioTrack.\n   *\n   * @param {string} [options.label='']\n   *        The menu label for this track.\n   *\n   * @param {string} [options.language='']\n   *        A valid two character language code.\n   *\n   * @param {boolean} [options.enabled]\n   *        If this track is the one that is currently playing. If this track is part of\n   *        an {@link AudioTrackList}, only one {@link AudioTrack} will be enabled.\n   */\n  function AudioTrack(options) {\n    var _this;\n\n    if (options === void 0) {\n      options = {};\n    }\n\n    var settings = mergeOptions$3(options, {\n      kind: AudioTrackKind[options.kind] || ''\n    });\n    _this = _Track.call(this, settings) || this;\n    var enabled = false;\n    /**\n     * @memberof AudioTrack\n     * @member {boolean} enabled\n     *         If this `AudioTrack` is enabled or not. When setting this will\n     *         fire {@link AudioTrack#enabledchange} if the state of enabled is changed.\n     * @instance\n     *\n     * @fires VideoTrack#selectedchange\n     */\n\n    Object.defineProperty(_assertThisInitialized(_this), 'enabled', {\n      get: function get() {\n        return enabled;\n      },\n      set: function set(newEnabled) {\n        // an invalid or unchanged value\n        if (typeof newEnabled !== 'boolean' || newEnabled === enabled) {\n          return;\n        }\n\n        enabled = newEnabled;\n        /**\n         * An event that fires when enabled changes on this track. This allows\n         * the AudioTrackList that holds this track to act accordingly.\n         *\n         * > Note: This is not part of the spec! Native tracks will do\n         *         this internally without an event.\n         *\n         * @event AudioTrack#enabledchange\n         * @type {EventTarget~Event}\n         */\n\n        this.trigger('enabledchange');\n      }\n    }); // if the user sets this track to selected then\n    // set selected to that true value otherwise\n    // we keep it false\n\n    if (settings.enabled) {\n      _this.enabled = settings.enabled;\n    }\n\n    _this.loaded_ = true;\n    return _this;\n  }\n\n  return AudioTrack;\n}(Track);\n\n/**\n * A representation of a single `VideoTrack`.\n *\n * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#videotrack}\n * @extends Track\n */\n\nvar VideoTrack = /*#__PURE__*/function (_Track) {\n  _inheritsLoose(VideoTrack, _Track);\n\n  /**\n   * Create an instance of this class.\n   *\n   * @param {Object} [options={}]\n   *        Object of option names and values\n   *\n   * @param {string} [options.kind='']\n   *        A valid {@link VideoTrack~Kind}\n   *\n   * @param {string} [options.id='vjs_track_' + Guid.newGUID()]\n   *        A unique id for this AudioTrack.\n   *\n   * @param {string} [options.label='']\n   *        The menu label for this track.\n   *\n   * @param {string} [options.language='']\n   *        A valid two character language code.\n   *\n   * @param {boolean} [options.selected]\n   *        If this track is the one that is currently playing.\n   */\n  function VideoTrack(options) {\n    var _this;\n\n    if (options === void 0) {\n      options = {};\n    }\n\n    var settings = mergeOptions$3(options, {\n      kind: VideoTrackKind[options.kind] || ''\n    });\n    _this = _Track.call(this, settings) || this;\n    var selected = false;\n    /**\n     * @memberof VideoTrack\n     * @member {boolean} selected\n     *         If this `VideoTrack` is selected or not. When setting this will\n     *         fire {@link VideoTrack#selectedchange} if the state of selected changed.\n     * @instance\n     *\n     * @fires VideoTrack#selectedchange\n     */\n\n    Object.defineProperty(_assertThisInitialized(_this), 'selected', {\n      get: function get() {\n        return selected;\n      },\n      set: function set(newSelected) {\n        // an invalid or unchanged value\n        if (typeof newSelected !== 'boolean' || newSelected === selected) {\n          return;\n        }\n\n        selected = newSelected;\n        /**\n         * An event that fires when selected changes on this track. This allows\n         * the VideoTrackList that holds this track to act accordingly.\n         *\n         * > Note: This is not part of the spec! Native tracks will do\n         *         this internally without an event.\n         *\n         * @event VideoTrack#selectedchange\n         * @type {EventTarget~Event}\n         */\n\n        this.trigger('selectedchange');\n      }\n    }); // if the user sets this track to selected then\n    // set selected to that true value otherwise\n    // we keep it false\n\n    if (settings.selected) {\n      _this.selected = settings.selected;\n    }\n\n    return _this;\n  }\n\n  return VideoTrack;\n}(Track);\n\n/**\n * @memberof HTMLTrackElement\n * @typedef {HTMLTrackElement~ReadyState}\n * @enum {number}\n */\n\nvar NONE = 0;\nvar LOADING = 1;\nvar LOADED = 2;\nvar ERROR = 3;\n/**\n * A single track represented in the DOM.\n *\n * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#htmltrackelement}\n * @extends EventTarget\n */\n\nvar HTMLTrackElement = /*#__PURE__*/function (_EventTarget) {\n  _inheritsLoose(HTMLTrackElement, _EventTarget);\n\n  /**\n   * Create an instance of this class.\n   *\n   * @param {Object} options={}\n   *        Object of option names and values\n   *\n   * @param {Tech} options.tech\n   *        A reference to the tech that owns this HTMLTrackElement.\n   *\n   * @param {TextTrack~Kind} [options.kind='subtitles']\n   *        A valid text track kind.\n   *\n   * @param {TextTrack~Mode} [options.mode='disabled']\n   *        A valid text track mode.\n   *\n   * @param {string} [options.id='vjs_track_' + Guid.newGUID()]\n   *        A unique id for this TextTrack.\n   *\n   * @param {string} [options.label='']\n   *        The menu label for this track.\n   *\n   * @param {string} [options.language='']\n   *        A valid two character language code.\n   *\n   * @param {string} [options.srclang='']\n   *        A valid two character language code. An alternative, but deprioritized\n   *        vesion of `options.language`\n   *\n   * @param {string} [options.src]\n   *        A url to TextTrack cues.\n   *\n   * @param {boolean} [options.default]\n   *        If this track should default to on or off.\n   */\n  function HTMLTrackElement(options) {\n    var _this;\n\n    if (options === void 0) {\n      options = {};\n    }\n\n    _this = _EventTarget.call(this) || this;\n    var readyState;\n    var track = new TextTrack(options);\n    _this.kind = track.kind;\n    _this.src = track.src;\n    _this.srclang = track.language;\n    _this.label = track.label;\n    _this[\"default\"] = track[\"default\"];\n    Object.defineProperties(_assertThisInitialized(_this), {\n      /**\n       * @memberof HTMLTrackElement\n       * @member {HTMLTrackElement~ReadyState} readyState\n       *         The current ready state of the track element.\n       * @instance\n       */\n      readyState: {\n        get: function get() {\n          return readyState;\n        }\n      },\n\n      /**\n       * @memberof HTMLTrackElement\n       * @member {TextTrack} track\n       *         The underlying TextTrack object.\n       * @instance\n       *\n       */\n      track: {\n        get: function get() {\n          return track;\n        }\n      }\n    });\n    readyState = NONE;\n    /**\n     * @listens TextTrack#loadeddata\n     * @fires HTMLTrackElement#load\n     */\n\n    track.addEventListener('loadeddata', function () {\n      readyState = LOADED;\n\n      _this.trigger({\n        type: 'load',\n        target: _assertThisInitialized(_this)\n      });\n    });\n    return _this;\n  }\n\n  return HTMLTrackElement;\n}(EventTarget$2);\n\nHTMLTrackElement.prototype.allowedEvents_ = {\n  load: 'load'\n};\nHTMLTrackElement.NONE = NONE;\nHTMLTrackElement.LOADING = LOADING;\nHTMLTrackElement.LOADED = LOADED;\nHTMLTrackElement.ERROR = ERROR;\n\n/*\n * This file contains all track properties that are used in\n * player.js, tech.js, html5.js and possibly other techs in the future.\n */\n\nvar NORMAL = {\n  audio: {\n    ListClass: AudioTrackList,\n    TrackClass: AudioTrack,\n    capitalName: 'Audio'\n  },\n  video: {\n    ListClass: VideoTrackList,\n    TrackClass: VideoTrack,\n    capitalName: 'Video'\n  },\n  text: {\n    ListClass: TextTrackList,\n    TrackClass: TextTrack,\n    capitalName: 'Text'\n  }\n};\nObject.keys(NORMAL).forEach(function (type) {\n  NORMAL[type].getterName = type + \"Tracks\";\n  NORMAL[type].privateName = type + \"Tracks_\";\n});\nvar REMOTE = {\n  remoteText: {\n    ListClass: TextTrackList,\n    TrackClass: TextTrack,\n    capitalName: 'RemoteText',\n    getterName: 'remoteTextTracks',\n    privateName: 'remoteTextTracks_'\n  },\n  remoteTextEl: {\n    ListClass: HtmlTrackElementList,\n    TrackClass: HTMLTrackElement,\n    capitalName: 'RemoteTextTrackEls',\n    getterName: 'remoteTextTrackEls',\n    privateName: 'remoteTextTrackEls_'\n  }\n};\n\nvar ALL = _extends({}, NORMAL, REMOTE);\n\nREMOTE.names = Object.keys(REMOTE);\nNORMAL.names = Object.keys(NORMAL);\nALL.names = [].concat(REMOTE.names).concat(NORMAL.names);\n\n/**\n * An Object containing a structure like: `{src: 'url', type: 'mimetype'}` or string\n * that just contains the src url alone.\n * * `var SourceObject = {src: 'http://ex.com/video.mp4', type: 'video/mp4'};`\n   * `var SourceString = 'http://example.com/some-video.mp4';`\n *\n * @typedef {Object|string} Tech~SourceObject\n *\n * @property {string} src\n *           The url to the source\n *\n * @property {string} type\n *           The mime type of the source\n */\n\n/**\n * A function used by {@link Tech} to create a new {@link TextTrack}.\n *\n * @private\n *\n * @param {Tech} self\n *        An instance of the Tech class.\n *\n * @param {string} kind\n *        `TextTrack` kind (subtitles, captions, descriptions, chapters, or metadata)\n *\n * @param {string} [label]\n *        Label to identify the text track\n *\n * @param {string} [language]\n *        Two letter language abbreviation\n *\n * @param {Object} [options={}]\n *        An object with additional text track options\n *\n * @return {TextTrack}\n *          The text track that was created.\n */\n\nfunction createTrackHelper(self, kind, label, language, options) {\n  if (options === void 0) {\n    options = {};\n  }\n\n  var tracks = self.textTracks();\n  options.kind = kind;\n\n  if (label) {\n    options.label = label;\n  }\n\n  if (language) {\n    options.language = language;\n  }\n\n  options.tech = self;\n  var track = new ALL.text.TrackClass(options);\n  tracks.addTrack(track);\n  return track;\n}\n/**\n * This is the base class for media playback technology controllers, such as\n * {@link HTML5}\n *\n * @extends Component\n */\n\n\nvar Tech = /*#__PURE__*/function (_Component) {\n  _inheritsLoose(Tech, _Component);\n\n  /**\n  * Create an instance of this Tech.\n  *\n  * @param {Object} [options]\n  *        The key/value store of player options.\n  *\n  * @param {Component~ReadyCallback} ready\n  *        Callback function to call when the `HTML5` Tech is ready.\n  */\n  function Tech(options, ready) {\n    var _this;\n\n    if (options === void 0) {\n      options = {};\n    }\n\n    if (ready === void 0) {\n      ready = function ready() {};\n    }\n\n    // we don't want the tech to report user activity automatically.\n    // This is done manually in addControlsListeners\n    options.reportTouchActivity = false;\n    _this = _Component.call(this, null, options, ready) || this;\n\n    _this.onDurationChange_ = function (e) {\n      return _this.onDurationChange(e);\n    };\n\n    _this.trackProgress_ = function (e) {\n      return _this.trackProgress(e);\n    };\n\n    _this.trackCurrentTime_ = function (e) {\n      return _this.trackCurrentTime(e);\n    };\n\n    _this.stopTrackingCurrentTime_ = function (e) {\n      return _this.stopTrackingCurrentTime(e);\n    };\n\n    _this.disposeSourceHandler_ = function (e) {\n      return _this.disposeSourceHandler(e);\n    }; // keep track of whether the current source has played at all to\n    // implement a very limited played()\n\n\n    _this.hasStarted_ = false;\n\n    _this.on('playing', function () {\n      this.hasStarted_ = true;\n    });\n\n    _this.on('loadstart', function () {\n      this.hasStarted_ = false;\n    });\n\n    ALL.names.forEach(function (name) {\n      var props = ALL[name];\n\n      if (options && options[props.getterName]) {\n        _this[props.privateName] = options[props.getterName];\n      }\n    }); // Manually track progress in cases where the browser/tech doesn't report it.\n\n    if (!_this.featuresProgressEvents) {\n      _this.manualProgressOn();\n    } // Manually track timeupdates in cases where the browser/tech doesn't report it.\n\n\n    if (!_this.featuresTimeupdateEvents) {\n      _this.manualTimeUpdatesOn();\n    }\n\n    ['Text', 'Audio', 'Video'].forEach(function (track) {\n      if (options[\"native\" + track + \"Tracks\"] === false) {\n        _this[\"featuresNative\" + track + \"Tracks\"] = false;\n      }\n    });\n\n    if (options.nativeCaptions === false || options.nativeTextTracks === false) {\n      _this.featuresNativeTextTracks = false;\n    } else if (options.nativeCaptions === true || options.nativeTextTracks === true) {\n      _this.featuresNativeTextTracks = true;\n    }\n\n    if (!_this.featuresNativeTextTracks) {\n      _this.emulateTextTracks();\n    }\n\n    _this.preloadTextTracks = options.preloadTextTracks !== false;\n    _this.autoRemoteTextTracks_ = new ALL.text.ListClass();\n\n    _this.initTrackListeners(); // Turn on component tap events only if not using native controls\n\n\n    if (!options.nativeControlsForTouch) {\n      _this.emitTapEvents();\n    }\n\n    if (_this.constructor) {\n      _this.name_ = _this.constructor.name || 'Unknown Tech';\n    }\n\n    return _this;\n  }\n  /**\n   * A special function to trigger source set in a way that will allow player\n   * to re-trigger if the player or tech are not ready yet.\n   *\n   * @fires Tech#sourceset\n   * @param {string} src The source string at the time of the source changing.\n   */\n\n\n  var _proto = Tech.prototype;\n\n  _proto.triggerSourceset = function triggerSourceset(src) {\n    var _this2 = this;\n\n    if (!this.isReady_) {\n      // on initial ready we have to trigger source set\n      // 1ms after ready so that player can watch for it.\n      this.one('ready', function () {\n        return _this2.setTimeout(function () {\n          return _this2.triggerSourceset(src);\n        }, 1);\n      });\n    }\n    /**\n     * Fired when the source is set on the tech causing the media element\n     * to reload.\n     *\n     * @see {@link Player#event:sourceset}\n     * @event Tech#sourceset\n     * @type {EventTarget~Event}\n     */\n\n\n    this.trigger({\n      src: src,\n      type: 'sourceset'\n    });\n  }\n  /* Fallbacks for unsupported event types\n  ================================================================================ */\n\n  /**\n   * Polyfill the `progress` event for browsers that don't support it natively.\n   *\n   * @see {@link Tech#trackProgress}\n   */\n  ;\n\n  _proto.manualProgressOn = function manualProgressOn() {\n    this.on('durationchange', this.onDurationChange_);\n    this.manualProgress = true; // Trigger progress watching when a source begins loading\n\n    this.one('ready', this.trackProgress_);\n  }\n  /**\n   * Turn off the polyfill for `progress` events that was created in\n   * {@link Tech#manualProgressOn}\n   */\n  ;\n\n  _proto.manualProgressOff = function manualProgressOff() {\n    this.manualProgress = false;\n    this.stopTrackingProgress();\n    this.off('durationchange', this.onDurationChange_);\n  }\n  /**\n   * This is used to trigger a `progress` event when the buffered percent changes. It\n   * sets an interval function that will be called every 500 milliseconds to check if the\n   * buffer end percent has changed.\n   *\n   * > This function is called by {@link Tech#manualProgressOn}\n   *\n   * @param {EventTarget~Event} event\n   *        The `ready` event that caused this to run.\n   *\n   * @listens Tech#ready\n   * @fires Tech#progress\n   */\n  ;\n\n  _proto.trackProgress = function trackProgress(event) {\n    this.stopTrackingProgress();\n    this.progressInterval = this.setInterval(bind(this, function () {\n      // Don't trigger unless buffered amount is greater than last time\n      var numBufferedPercent = this.bufferedPercent();\n\n      if (this.bufferedPercent_ !== numBufferedPercent) {\n        /**\n         * See {@link Player#progress}\n         *\n         * @event Tech#progress\n         * @type {EventTarget~Event}\n         */\n        this.trigger('progress');\n      }\n\n      this.bufferedPercent_ = numBufferedPercent;\n\n      if (numBufferedPercent === 1) {\n        this.stopTrackingProgress();\n      }\n    }), 500);\n  }\n  /**\n   * Update our internal duration on a `durationchange` event by calling\n   * {@link Tech#duration}.\n   *\n   * @param {EventTarget~Event} event\n   *        The `durationchange` event that caused this to run.\n   *\n   * @listens Tech#durationchange\n   */\n  ;\n\n  _proto.onDurationChange = function onDurationChange(event) {\n    this.duration_ = this.duration();\n  }\n  /**\n   * Get and create a `TimeRange` object for buffering.\n   *\n   * @return {TimeRange}\n   *         The time range object that was created.\n   */\n  ;\n\n  _proto.buffered = function buffered() {\n    return createTimeRanges(0, 0);\n  }\n  /**\n   * Get the percentage of the current video that is currently buffered.\n   *\n   * @return {number}\n   *         A number from 0 to 1 that represents the decimal percentage of the\n   *         video that is buffered.\n   *\n   */\n  ;\n\n  _proto.bufferedPercent = function bufferedPercent$1() {\n    return bufferedPercent(this.buffered(), this.duration_);\n  }\n  /**\n   * Turn off the polyfill for `progress` events that was created in\n   * {@link Tech#manualProgressOn}\n   * Stop manually tracking progress events by clearing the interval that was set in\n   * {@link Tech#trackProgress}.\n   */\n  ;\n\n  _proto.stopTrackingProgress = function stopTrackingProgress() {\n    this.clearInterval(this.progressInterval);\n  }\n  /**\n   * Polyfill the `timeupdate` event for browsers that don't support it.\n   *\n   * @see {@link Tech#trackCurrentTime}\n   */\n  ;\n\n  _proto.manualTimeUpdatesOn = function manualTimeUpdatesOn() {\n    this.manualTimeUpdates = true;\n    this.on('play', this.trackCurrentTime_);\n    this.on('pause', this.stopTrackingCurrentTime_);\n  }\n  /**\n   * Turn off the polyfill for `timeupdate` events that was created in\n   * {@link Tech#manualTimeUpdatesOn}\n   */\n  ;\n\n  _proto.manualTimeUpdatesOff = function manualTimeUpdatesOff() {\n    this.manualTimeUpdates = false;\n    this.stopTrackingCurrentTime();\n    this.off('play', this.trackCurrentTime_);\n    this.off('pause', this.stopTrackingCurrentTime_);\n  }\n  /**\n   * Sets up an interval function to track current time and trigger `timeupdate` every\n   * 250 milliseconds.\n   *\n   * @listens Tech#play\n   * @triggers Tech#timeupdate\n   */\n  ;\n\n  _proto.trackCurrentTime = function trackCurrentTime() {\n    if (this.currentTimeInterval) {\n      this.stopTrackingCurrentTime();\n    }\n\n    this.currentTimeInterval = this.setInterval(function () {\n      /**\n       * Triggered at an interval of 250ms to indicated that time is passing in the video.\n       *\n       * @event Tech#timeupdate\n       * @type {EventTarget~Event}\n       */\n      this.trigger({\n        type: 'timeupdate',\n        target: this,\n        manuallyTriggered: true\n      }); // 42 = 24 fps // 250 is what Webkit uses // FF uses 15\n    }, 250);\n  }\n  /**\n   * Stop the interval function created in {@link Tech#trackCurrentTime} so that the\n   * `timeupdate` event is no longer triggered.\n   *\n   * @listens {Tech#pause}\n   */\n  ;\n\n  _proto.stopTrackingCurrentTime = function stopTrackingCurrentTime() {\n    this.clearInterval(this.currentTimeInterval); // #1002 - if the video ends right before the next timeupdate would happen,\n    // the progress bar won't make it all the way to the end\n\n    this.trigger({\n      type: 'timeupdate',\n      target: this,\n      manuallyTriggered: true\n    });\n  }\n  /**\n   * Turn off all event polyfills, clear the `Tech`s {@link AudioTrackList},\n   * {@link VideoTrackList}, and {@link TextTrackList}, and dispose of this Tech.\n   *\n   * @fires Component#dispose\n   */\n  ;\n\n  _proto.dispose = function dispose() {\n    // clear out all tracks because we can't reuse them between techs\n    this.clearTracks(NORMAL.names); // Turn off any manual progress or timeupdate tracking\n\n    if (this.manualProgress) {\n      this.manualProgressOff();\n    }\n\n    if (this.manualTimeUpdates) {\n      this.manualTimeUpdatesOff();\n    }\n\n    _Component.prototype.dispose.call(this);\n  }\n  /**\n   * Clear out a single `TrackList` or an array of `TrackLists` given their names.\n   *\n   * > Note: Techs without source handlers should call this between sources for `video`\n   *         & `audio` tracks. You don't want to use them between tracks!\n   *\n   * @param {string[]|string} types\n   *        TrackList names to clear, valid names are `video`, `audio`, and\n   *        `text`.\n   */\n  ;\n\n  _proto.clearTracks = function clearTracks(types) {\n    var _this3 = this;\n\n    types = [].concat(types); // clear out all tracks because we can't reuse them between techs\n\n    types.forEach(function (type) {\n      var list = _this3[type + \"Tracks\"]() || [];\n      var i = list.length;\n\n      while (i--) {\n        var track = list[i];\n\n        if (type === 'text') {\n          _this3.removeRemoteTextTrack(track);\n        }\n\n        list.removeTrack(track);\n      }\n    });\n  }\n  /**\n   * Remove any TextTracks added via addRemoteTextTrack that are\n   * flagged for automatic garbage collection\n   */\n  ;\n\n  _proto.cleanupAutoTextTracks = function cleanupAutoTextTracks() {\n    var list = this.autoRemoteTextTracks_ || [];\n    var i = list.length;\n\n    while (i--) {\n      var track = list[i];\n      this.removeRemoteTextTrack(track);\n    }\n  }\n  /**\n   * Reset the tech, which will removes all sources and reset the internal readyState.\n   *\n   * @abstract\n   */\n  ;\n\n  _proto.reset = function reset() {}\n  /**\n   * Get the value of `crossOrigin` from the tech.\n   *\n   * @abstract\n   *\n   * @see {Html5#crossOrigin}\n   */\n  ;\n\n  _proto.crossOrigin = function crossOrigin() {}\n  /**\n   * Set the value of `crossOrigin` on the tech.\n   *\n   * @abstract\n   *\n   * @param {string} crossOrigin the crossOrigin value\n   * @see {Html5#setCrossOrigin}\n   */\n  ;\n\n  _proto.setCrossOrigin = function setCrossOrigin() {}\n  /**\n   * Get or set an error on the Tech.\n   *\n   * @param {MediaError} [err]\n   *        Error to set on the Tech\n   *\n   * @return {MediaError|null}\n   *         The current error object on the tech, or null if there isn't one.\n   */\n  ;\n\n  _proto.error = function error(err) {\n    if (err !== undefined) {\n      this.error_ = new MediaError(err);\n      this.trigger('error');\n    }\n\n    return this.error_;\n  }\n  /**\n   * Returns the `TimeRange`s that have been played through for the current source.\n   *\n   * > NOTE: This implementation is incomplete. It does not track the played `TimeRange`.\n   *         It only checks whether the source has played at all or not.\n   *\n   * @return {TimeRange}\n   *         - A single time range if this video has played\n   *         - An empty set of ranges if not.\n   */\n  ;\n\n  _proto.played = function played() {\n    if (this.hasStarted_) {\n      return createTimeRanges(0, 0);\n    }\n\n    return createTimeRanges();\n  }\n  /**\n   * Start playback\n   *\n   * @abstract\n   *\n   * @see {Html5#play}\n   */\n  ;\n\n  _proto.play = function play() {}\n  /**\n   * Set whether we are scrubbing or not\n   *\n   * @abstract\n   *\n   * @see {Html5#setScrubbing}\n   */\n  ;\n\n  _proto.setScrubbing = function setScrubbing() {}\n  /**\n   * Get whether we are scrubbing or not\n   *\n   * @abstract\n   *\n   * @see {Html5#scrubbing}\n   */\n  ;\n\n  _proto.scrubbing = function scrubbing() {}\n  /**\n   * Causes a manual time update to occur if {@link Tech#manualTimeUpdatesOn} was\n   * previously called.\n   *\n   * @fires Tech#timeupdate\n   */\n  ;\n\n  _proto.setCurrentTime = function setCurrentTime() {\n    // improve the accuracy of manual timeupdates\n    if (this.manualTimeUpdates) {\n      /**\n       * A manual `timeupdate` event.\n       *\n       * @event Tech#timeupdate\n       * @type {EventTarget~Event}\n       */\n      this.trigger({\n        type: 'timeupdate',\n        target: this,\n        manuallyTriggered: true\n      });\n    }\n  }\n  /**\n   * Turn on listeners for {@link VideoTrackList}, {@link {AudioTrackList}, and\n   * {@link TextTrackList} events.\n   *\n   * This adds {@link EventTarget~EventListeners} for `addtrack`, and  `removetrack`.\n   *\n   * @fires Tech#audiotrackchange\n   * @fires Tech#videotrackchange\n   * @fires Tech#texttrackchange\n   */\n  ;\n\n  _proto.initTrackListeners = function initTrackListeners() {\n    var _this4 = this;\n\n    /**\n      * Triggered when tracks are added or removed on the Tech {@link AudioTrackList}\n      *\n      * @event Tech#audiotrackchange\n      * @type {EventTarget~Event}\n      */\n\n    /**\n      * Triggered when tracks are added or removed on the Tech {@link VideoTrackList}\n      *\n      * @event Tech#videotrackchange\n      * @type {EventTarget~Event}\n      */\n\n    /**\n      * Triggered when tracks are added or removed on the Tech {@link TextTrackList}\n      *\n      * @event Tech#texttrackchange\n      * @type {EventTarget~Event}\n      */\n    NORMAL.names.forEach(function (name) {\n      var props = NORMAL[name];\n\n      var trackListChanges = function trackListChanges() {\n        _this4.trigger(name + \"trackchange\");\n      };\n\n      var tracks = _this4[props.getterName]();\n\n      tracks.addEventListener('removetrack', trackListChanges);\n      tracks.addEventListener('addtrack', trackListChanges);\n\n      _this4.on('dispose', function () {\n        tracks.removeEventListener('removetrack', trackListChanges);\n        tracks.removeEventListener('addtrack', trackListChanges);\n      });\n    });\n  }\n  /**\n   * Emulate TextTracks using vtt.js if necessary\n   *\n   * @fires Tech#vttjsloaded\n   * @fires Tech#vttjserror\n   */\n  ;\n\n  _proto.addWebVttScript_ = function addWebVttScript_() {\n    var _this5 = this;\n\n    if (window.WebVTT) {\n      return;\n    } // Initially, Tech.el_ is a child of a dummy-div wait until the Component system\n    // signals that the Tech is ready at which point Tech.el_ is part of the DOM\n    // before inserting the WebVTT script\n\n\n    if (document.body.contains(this.el())) {\n      // load via require if available and vtt.js script location was not passed in\n      // as an option. novtt builds will turn the above require call into an empty object\n      // which will cause this if check to always fail.\n      if (!this.options_['vtt.js'] && isPlain(vtt) && Object.keys(vtt).length > 0) {\n        this.trigger('vttjsloaded');\n        return;\n      } // load vtt.js via the script location option or the cdn of no location was\n      // passed in\n\n\n      var script = document.createElement('script');\n      script.src = this.options_['vtt.js'] || 'https://vjs.zencdn.net/vttjs/0.14.1/vtt.min.js';\n\n      script.onload = function () {\n        /**\n         * Fired when vtt.js is loaded.\n         *\n         * @event Tech#vttjsloaded\n         * @type {EventTarget~Event}\n         */\n        _this5.trigger('vttjsloaded');\n      };\n\n      script.onerror = function () {\n        /**\n         * Fired when vtt.js was not loaded due to an error\n         *\n         * @event Tech#vttjsloaded\n         * @type {EventTarget~Event}\n         */\n        _this5.trigger('vttjserror');\n      };\n\n      this.on('dispose', function () {\n        script.onload = null;\n        script.onerror = null;\n      }); // but have not loaded yet and we set it to true before the inject so that\n      // we don't overwrite the injected window.WebVTT if it loads right away\n\n      window.WebVTT = true;\n      this.el().parentNode.appendChild(script);\n    } else {\n      this.ready(this.addWebVttScript_);\n    }\n  }\n  /**\n   * Emulate texttracks\n   *\n   */\n  ;\n\n  _proto.emulateTextTracks = function emulateTextTracks() {\n    var _this6 = this;\n\n    var tracks = this.textTracks();\n    var remoteTracks = this.remoteTextTracks();\n\n    var handleAddTrack = function handleAddTrack(e) {\n      return tracks.addTrack(e.track);\n    };\n\n    var handleRemoveTrack = function handleRemoveTrack(e) {\n      return tracks.removeTrack(e.track);\n    };\n\n    remoteTracks.on('addtrack', handleAddTrack);\n    remoteTracks.on('removetrack', handleRemoveTrack);\n    this.addWebVttScript_();\n\n    var updateDisplay = function updateDisplay() {\n      return _this6.trigger('texttrackchange');\n    };\n\n    var textTracksChanges = function textTracksChanges() {\n      updateDisplay();\n\n      for (var i = 0; i < tracks.length; i++) {\n        var track = tracks[i];\n        track.removeEventListener('cuechange', updateDisplay);\n\n        if (track.mode === 'showing') {\n          track.addEventListener('cuechange', updateDisplay);\n        }\n      }\n    };\n\n    textTracksChanges();\n    tracks.addEventListener('change', textTracksChanges);\n    tracks.addEventListener('addtrack', textTracksChanges);\n    tracks.addEventListener('removetrack', textTracksChanges);\n    this.on('dispose', function () {\n      remoteTracks.off('addtrack', handleAddTrack);\n      remoteTracks.off('removetrack', handleRemoveTrack);\n      tracks.removeEventListener('change', textTracksChanges);\n      tracks.removeEventListener('addtrack', textTracksChanges);\n      tracks.removeEventListener('removetrack', textTracksChanges);\n\n      for (var i = 0; i < tracks.length; i++) {\n        var track = tracks[i];\n        track.removeEventListener('cuechange', updateDisplay);\n      }\n    });\n  }\n  /**\n   * Create and returns a remote {@link TextTrack} object.\n   *\n   * @param {string} kind\n   *        `TextTrack` kind (subtitles, captions, descriptions, chapters, or metadata)\n   *\n   * @param {string} [label]\n   *        Label to identify the text track\n   *\n   * @param {string} [language]\n   *        Two letter language abbreviation\n   *\n   * @return {TextTrack}\n   *         The TextTrack that gets created.\n   */\n  ;\n\n  _proto.addTextTrack = function addTextTrack(kind, label, language) {\n    if (!kind) {\n      throw new Error('TextTrack kind is required but was not provided');\n    }\n\n    return createTrackHelper(this, kind, label, language);\n  }\n  /**\n   * Create an emulated TextTrack for use by addRemoteTextTrack\n   *\n   * This is intended to be overridden by classes that inherit from\n   * Tech in order to create native or custom TextTracks.\n   *\n   * @param {Object} options\n   *        The object should contain the options to initialize the TextTrack with.\n   *\n   * @param {string} [options.kind]\n   *        `TextTrack` kind (subtitles, captions, descriptions, chapters, or metadata).\n   *\n   * @param {string} [options.label].\n   *        Label to identify the text track\n   *\n   * @param {string} [options.language]\n   *        Two letter language abbreviation.\n   *\n   * @return {HTMLTrackElement}\n   *         The track element that gets created.\n   */\n  ;\n\n  _proto.createRemoteTextTrack = function createRemoteTextTrack(options) {\n    var track = mergeOptions$3(options, {\n      tech: this\n    });\n    return new REMOTE.remoteTextEl.TrackClass(track);\n  }\n  /**\n   * Creates a remote text track object and returns an html track element.\n   *\n   * > Note: This can be an emulated {@link HTMLTrackElement} or a native one.\n   *\n   * @param {Object} options\n   *        See {@link Tech#createRemoteTextTrack} for more detailed properties.\n   *\n   * @param {boolean} [manualCleanup=true]\n   *        - When false: the TextTrack will be automatically removed from the video\n   *          element whenever the source changes\n   *        - When True: The TextTrack will have to be cleaned up manually\n   *\n   * @return {HTMLTrackElement}\n   *         An Html Track Element.\n   *\n   * @deprecated The default functionality for this function will be equivalent\n   *             to \"manualCleanup=false\" in the future. The manualCleanup parameter will\n   *             also be removed.\n   */\n  ;\n\n  _proto.addRemoteTextTrack = function addRemoteTextTrack(options, manualCleanup) {\n    var _this7 = this;\n\n    if (options === void 0) {\n      options = {};\n    }\n\n    var htmlTrackElement = this.createRemoteTextTrack(options);\n\n    if (manualCleanup !== true && manualCleanup !== false) {\n      // deprecation warning\n      log$1.warn('Calling addRemoteTextTrack without explicitly setting the \"manualCleanup\" parameter to `true` is deprecated and default to `false` in future version of video.js');\n      manualCleanup = true;\n    } // store HTMLTrackElement and TextTrack to remote list\n\n\n    this.remoteTextTrackEls().addTrackElement_(htmlTrackElement);\n    this.remoteTextTracks().addTrack(htmlTrackElement.track);\n\n    if (manualCleanup !== true) {\n      // create the TextTrackList if it doesn't exist\n      this.ready(function () {\n        return _this7.autoRemoteTextTracks_.addTrack(htmlTrackElement.track);\n      });\n    }\n\n    return htmlTrackElement;\n  }\n  /**\n   * Remove a remote text track from the remote `TextTrackList`.\n   *\n   * @param {TextTrack} track\n   *        `TextTrack` to remove from the `TextTrackList`\n   */\n  ;\n\n  _proto.removeRemoteTextTrack = function removeRemoteTextTrack(track) {\n    var trackElement = this.remoteTextTrackEls().getTrackElementByTrack_(track); // remove HTMLTrackElement and TextTrack from remote list\n\n    this.remoteTextTrackEls().removeTrackElement_(trackElement);\n    this.remoteTextTracks().removeTrack(track);\n    this.autoRemoteTextTracks_.removeTrack(track);\n  }\n  /**\n   * Gets available media playback quality metrics as specified by the W3C's Media\n   * Playback Quality API.\n   *\n   * @see [Spec]{@link https://wicg.github.io/media-playback-quality}\n   *\n   * @return {Object}\n   *         An object with supported media playback quality metrics\n   *\n   * @abstract\n   */\n  ;\n\n  _proto.getVideoPlaybackQuality = function getVideoPlaybackQuality() {\n    return {};\n  }\n  /**\n   * Attempt to create a floating video window always on top of other windows\n   * so that users may continue consuming media while they interact with other\n   * content sites, or applications on their device.\n   *\n   * @see [Spec]{@link https://wicg.github.io/picture-in-picture}\n   *\n   * @return {Promise|undefined}\n   *         A promise with a Picture-in-Picture window if the browser supports\n   *         Promises (or one was passed in as an option). It returns undefined\n   *         otherwise.\n   *\n   * @abstract\n   */\n  ;\n\n  _proto.requestPictureInPicture = function requestPictureInPicture() {\n    var PromiseClass = this.options_.Promise || window.Promise;\n\n    if (PromiseClass) {\n      return PromiseClass.reject();\n    }\n  }\n  /**\n   * A method to check for the value of the 'disablePictureInPicture' <video> property.\n   * Defaults to true, as it should be considered disabled if the tech does not support pip\n   *\n   * @abstract\n   */\n  ;\n\n  _proto.disablePictureInPicture = function disablePictureInPicture() {\n    return true;\n  }\n  /**\n   * A method to set or unset the 'disablePictureInPicture' <video> property.\n   *\n   * @abstract\n   */\n  ;\n\n  _proto.setDisablePictureInPicture = function setDisablePictureInPicture() {}\n  /**\n   * A method to set a poster from a `Tech`.\n   *\n   * @abstract\n   */\n  ;\n\n  _proto.setPoster = function setPoster() {}\n  /**\n   * A method to check for the presence of the 'playsinline' <video> attribute.\n   *\n   * @abstract\n   */\n  ;\n\n  _proto.playsinline = function playsinline() {}\n  /**\n   * A method to set or unset the 'playsinline' <video> attribute.\n   *\n   * @abstract\n   */\n  ;\n\n  _proto.setPlaysinline = function setPlaysinline() {}\n  /**\n   * Attempt to force override of native audio tracks.\n   *\n   * @param {boolean} override - If set to true native audio will be overridden,\n   * otherwise native audio will potentially be used.\n   *\n   * @abstract\n   */\n  ;\n\n  _proto.overrideNativeAudioTracks = function overrideNativeAudioTracks() {}\n  /**\n   * Attempt to force override of native video tracks.\n   *\n   * @param {boolean} override - If set to true native video will be overridden,\n   * otherwise native video will potentially be used.\n   *\n   * @abstract\n   */\n  ;\n\n  _proto.overrideNativeVideoTracks = function overrideNativeVideoTracks() {}\n  /*\n   * Check if the tech can support the given mime-type.\n   *\n   * The base tech does not support any type, but source handlers might\n   * overwrite this.\n   *\n   * @param  {string} type\n   *         The mimetype to check for support\n   *\n   * @return {string}\n   *         'probably', 'maybe', or empty string\n   *\n   * @see [Spec]{@link https://developer.mozilla.org/en-US/docs/Web/API/HTMLMediaElement/canPlayType}\n   *\n   * @abstract\n   */\n  ;\n\n  _proto.canPlayType = function canPlayType() {\n    return '';\n  }\n  /**\n   * Check if the type is supported by this tech.\n   *\n   * The base tech does not support any type, but source handlers might\n   * overwrite this.\n   *\n   * @param {string} type\n   *        The media type to check\n   * @return {string} Returns the native video element's response\n   */\n  ;\n\n  Tech.canPlayType = function canPlayType() {\n    return '';\n  }\n  /**\n   * Check if the tech can support the given source\n   *\n   * @param {Object} srcObj\n   *        The source object\n   * @param {Object} options\n   *        The options passed to the tech\n   * @return {string} 'probably', 'maybe', or '' (empty string)\n   */\n  ;\n\n  Tech.canPlaySource = function canPlaySource(srcObj, options) {\n    return Tech.canPlayType(srcObj.type);\n  }\n  /*\n   * Return whether the argument is a Tech or not.\n   * Can be passed either a Class like `Html5` or a instance like `player.tech_`\n   *\n   * @param {Object} component\n   *        The item to check\n   *\n   * @return {boolean}\n   *         Whether it is a tech or not\n   *         - True if it is a tech\n   *         - False if it is not\n   */\n  ;\n\n  Tech.isTech = function isTech(component) {\n    return component.prototype instanceof Tech || component instanceof Tech || component === Tech;\n  }\n  /**\n   * Registers a `Tech` into a shared list for videojs.\n   *\n   * @param {string} name\n   *        Name of the `Tech` to register.\n   *\n   * @param {Object} tech\n   *        The `Tech` class to register.\n   */\n  ;\n\n  Tech.registerTech = function registerTech(name, tech) {\n    if (!Tech.techs_) {\n      Tech.techs_ = {};\n    }\n\n    if (!Tech.isTech(tech)) {\n      throw new Error(\"Tech \" + name + \" must be a Tech\");\n    }\n\n    if (!Tech.canPlayType) {\n      throw new Error('Techs must have a static canPlayType method on them');\n    }\n\n    if (!Tech.canPlaySource) {\n      throw new Error('Techs must have a static canPlaySource method on them');\n    }\n\n    name = toTitleCase$1(name);\n    Tech.techs_[name] = tech;\n    Tech.techs_[toLowerCase(name)] = tech;\n\n    if (name !== 'Tech') {\n      // camel case the techName for use in techOrder\n      Tech.defaultTechOrder_.push(name);\n    }\n\n    return tech;\n  }\n  /**\n   * Get a `Tech` from the shared list by name.\n   *\n   * @param {string} name\n   *        `camelCase` or `TitleCase` name of the Tech to get\n   *\n   * @return {Tech|undefined}\n   *         The `Tech` or undefined if there was no tech with the name requested.\n   */\n  ;\n\n  Tech.getTech = function getTech(name) {\n    if (!name) {\n      return;\n    }\n\n    if (Tech.techs_ && Tech.techs_[name]) {\n      return Tech.techs_[name];\n    }\n\n    name = toTitleCase$1(name);\n\n    if (window && window.videojs && window.videojs[name]) {\n      log$1.warn(\"The \" + name + \" tech was added to the videojs object when it should be registered using videojs.registerTech(name, tech)\");\n      return window.videojs[name];\n    }\n  };\n\n  return Tech;\n}(Component$1);\n/**\n * Get the {@link VideoTrackList}\n *\n * @returns {VideoTrackList}\n * @method Tech.prototype.videoTracks\n */\n\n/**\n * Get the {@link AudioTrackList}\n *\n * @returns {AudioTrackList}\n * @method Tech.prototype.audioTracks\n */\n\n/**\n * Get the {@link TextTrackList}\n *\n * @returns {TextTrackList}\n * @method Tech.prototype.textTracks\n */\n\n/**\n * Get the remote element {@link TextTrackList}\n *\n * @returns {TextTrackList}\n * @method Tech.prototype.remoteTextTracks\n */\n\n/**\n * Get the remote element {@link HtmlTrackElementList}\n *\n * @returns {HtmlTrackElementList}\n * @method Tech.prototype.remoteTextTrackEls\n */\n\n\nALL.names.forEach(function (name) {\n  var props = ALL[name];\n\n  Tech.prototype[props.getterName] = function () {\n    this[props.privateName] = this[props.privateName] || new props.ListClass();\n    return this[props.privateName];\n  };\n});\n/**\n * List of associated text tracks\n *\n * @type {TextTrackList}\n * @private\n * @property Tech#textTracks_\n */\n\n/**\n * List of associated audio tracks.\n *\n * @type {AudioTrackList}\n * @private\n * @property Tech#audioTracks_\n */\n\n/**\n * List of associated video tracks.\n *\n * @type {VideoTrackList}\n * @private\n * @property Tech#videoTracks_\n */\n\n/**\n * Boolean indicating whether the `Tech` supports volume control.\n *\n * @type {boolean}\n * @default\n */\n\nTech.prototype.featuresVolumeControl = true;\n/**\n * Boolean indicating whether the `Tech` supports muting volume.\n *\n * @type {bolean}\n * @default\n */\n\nTech.prototype.featuresMuteControl = true;\n/**\n * Boolean indicating whether the `Tech` supports fullscreen resize control.\n * Resizing plugins using request fullscreen reloads the plugin\n *\n * @type {boolean}\n * @default\n */\n\nTech.prototype.featuresFullscreenResize = false;\n/**\n * Boolean indicating whether the `Tech` supports changing the speed at which the video\n * plays. Examples:\n *   - Set player to play 2x (twice) as fast\n *   - Set player to play 0.5x (half) as fast\n *\n * @type {boolean}\n * @default\n */\n\nTech.prototype.featuresPlaybackRate = false;\n/**\n * Boolean indicating whether the `Tech` supports the `progress` event. This is currently\n * not triggered by video-js-swf. This will be used to determine if\n * {@link Tech#manualProgressOn} should be called.\n *\n * @type {boolean}\n * @default\n */\n\nTech.prototype.featuresProgressEvents = false;\n/**\n * Boolean indicating whether the `Tech` supports the `sourceset` event.\n *\n * A tech should set this to `true` and then use {@link Tech#triggerSourceset}\n * to trigger a {@link Tech#event:sourceset} at the earliest time after getting\n * a new source.\n *\n * @type {boolean}\n * @default\n */\n\nTech.prototype.featuresSourceset = false;\n/**\n * Boolean indicating whether the `Tech` supports the `timeupdate` event. This is currently\n * not triggered by video-js-swf. This will be used to determine if\n * {@link Tech#manualTimeUpdates} should be called.\n *\n * @type {boolean}\n * @default\n */\n\nTech.prototype.featuresTimeupdateEvents = false;\n/**\n * Boolean indicating whether the `Tech` supports the native `TextTrack`s.\n * This will help us integrate with native `TextTrack`s if the browser supports them.\n *\n * @type {boolean}\n * @default\n */\n\nTech.prototype.featuresNativeTextTracks = false;\n/**\n * A functional mixin for techs that want to use the Source Handler pattern.\n * Source handlers are scripts for handling specific formats.\n * The source handler pattern is used for adaptive formats (HLS, DASH) that\n * manually load video data and feed it into a Source Buffer (Media Source Extensions)\n * Example: `Tech.withSourceHandlers.call(MyTech);`\n *\n * @param {Tech} _Tech\n *        The tech to add source handler functions to.\n *\n * @mixes Tech~SourceHandlerAdditions\n */\n\nTech.withSourceHandlers = function (_Tech) {\n  /**\n   * Register a source handler\n   *\n   * @param {Function} handler\n   *        The source handler class\n   *\n   * @param {number} [index]\n   *        Register it at the following index\n   */\n  _Tech.registerSourceHandler = function (handler, index) {\n    var handlers = _Tech.sourceHandlers;\n\n    if (!handlers) {\n      handlers = _Tech.sourceHandlers = [];\n    }\n\n    if (index === undefined) {\n      // add to the end of the list\n      index = handlers.length;\n    }\n\n    handlers.splice(index, 0, handler);\n  };\n  /**\n   * Check if the tech can support the given type. Also checks the\n   * Techs sourceHandlers.\n   *\n   * @param {string} type\n   *         The mimetype to check.\n   *\n   * @return {string}\n   *         'probably', 'maybe', or '' (empty string)\n   */\n\n\n  _Tech.canPlayType = function (type) {\n    var handlers = _Tech.sourceHandlers || [];\n    var can;\n\n    for (var i = 0; i < handlers.length; i++) {\n      can = handlers[i].canPlayType(type);\n\n      if (can) {\n        return can;\n      }\n    }\n\n    return '';\n  };\n  /**\n   * Returns the first source handler that supports the source.\n   *\n   * TODO: Answer question: should 'probably' be prioritized over 'maybe'\n   *\n   * @param {Tech~SourceObject} source\n   *        The source object\n   *\n   * @param {Object} options\n   *        The options passed to the tech\n   *\n   * @return {SourceHandler|null}\n   *          The first source handler that supports the source or null if\n   *          no SourceHandler supports the source\n   */\n\n\n  _Tech.selectSourceHandler = function (source, options) {\n    var handlers = _Tech.sourceHandlers || [];\n    var can;\n\n    for (var i = 0; i < handlers.length; i++) {\n      can = handlers[i].canHandleSource(source, options);\n\n      if (can) {\n        return handlers[i];\n      }\n    }\n\n    return null;\n  };\n  /**\n   * Check if the tech can support the given source.\n   *\n   * @param {Tech~SourceObject} srcObj\n   *        The source object\n   *\n   * @param {Object} options\n   *        The options passed to the tech\n   *\n   * @return {string}\n   *         'probably', 'maybe', or '' (empty string)\n   */\n\n\n  _Tech.canPlaySource = function (srcObj, options) {\n    var sh = _Tech.selectSourceHandler(srcObj, options);\n\n    if (sh) {\n      return sh.canHandleSource(srcObj, options);\n    }\n\n    return '';\n  };\n  /**\n   * When using a source handler, prefer its implementation of\n   * any function normally provided by the tech.\n   */\n\n\n  var deferrable = ['seekable', 'seeking', 'duration'];\n  /**\n   * A wrapper around {@link Tech#seekable} that will call a `SourceHandler`s seekable\n   * function if it exists, with a fallback to the Techs seekable function.\n   *\n   * @method _Tech.seekable\n   */\n\n  /**\n   * A wrapper around {@link Tech#duration} that will call a `SourceHandler`s duration\n   * function if it exists, otherwise it will fallback to the techs duration function.\n   *\n   * @method _Tech.duration\n   */\n\n  deferrable.forEach(function (fnName) {\n    var originalFn = this[fnName];\n\n    if (typeof originalFn !== 'function') {\n      return;\n    }\n\n    this[fnName] = function () {\n      if (this.sourceHandler_ && this.sourceHandler_[fnName]) {\n        return this.sourceHandler_[fnName].apply(this.sourceHandler_, arguments);\n      }\n\n      return originalFn.apply(this, arguments);\n    };\n  }, _Tech.prototype);\n  /**\n   * Create a function for setting the source using a source object\n   * and source handlers.\n   * Should never be called unless a source handler was found.\n   *\n   * @param {Tech~SourceObject} source\n   *        A source object with src and type keys\n   */\n\n  _Tech.prototype.setSource = function (source) {\n    var sh = _Tech.selectSourceHandler(source, this.options_);\n\n    if (!sh) {\n      // Fall back to a native source hander when unsupported sources are\n      // deliberately set\n      if (_Tech.nativeSourceHandler) {\n        sh = _Tech.nativeSourceHandler;\n      } else {\n        log$1.error('No source handler found for the current source.');\n      }\n    } // Dispose any existing source handler\n\n\n    this.disposeSourceHandler();\n    this.off('dispose', this.disposeSourceHandler_);\n\n    if (sh !== _Tech.nativeSourceHandler) {\n      this.currentSource_ = source;\n    }\n\n    this.sourceHandler_ = sh.handleSource(source, this, this.options_);\n    this.one('dispose', this.disposeSourceHandler_);\n  };\n  /**\n   * Clean up any existing SourceHandlers and listeners when the Tech is disposed.\n   *\n   * @listens Tech#dispose\n   */\n\n\n  _Tech.prototype.disposeSourceHandler = function () {\n    // if we have a source and get another one\n    // then we are loading something new\n    // than clear all of our current tracks\n    if (this.currentSource_) {\n      this.clearTracks(['audio', 'video']);\n      this.currentSource_ = null;\n    } // always clean up auto-text tracks\n\n\n    this.cleanupAutoTextTracks();\n\n    if (this.sourceHandler_) {\n      if (this.sourceHandler_.dispose) {\n        this.sourceHandler_.dispose();\n      }\n\n      this.sourceHandler_ = null;\n    }\n  };\n}; // The base Tech class needs to be registered as a Component. It is the only\n// Tech that can be registered as a Component.\n\n\nComponent$1.registerComponent('Tech', Tech);\nTech.registerTech('Tech', Tech);\n/**\n * A list of techs that should be added to techOrder on Players\n *\n * @private\n */\n\nTech.defaultTechOrder_ = [];\n\n/**\n * @file middleware.js\n * @module middleware\n */\nvar middlewares = {};\nvar middlewareInstances = {};\nvar TERMINATOR = {};\n/**\n * A middleware object is a plain JavaScript object that has methods that\n * match the {@link Tech} methods found in the lists of allowed\n * {@link module:middleware.allowedGetters|getters},\n * {@link module:middleware.allowedSetters|setters}, and\n * {@link module:middleware.allowedMediators|mediators}.\n *\n * @typedef {Object} MiddlewareObject\n */\n\n/**\n * A middleware factory function that should return a\n * {@link module:middleware~MiddlewareObject|MiddlewareObject}.\n *\n * This factory will be called for each player when needed, with the player\n * passed in as an argument.\n *\n * @callback MiddlewareFactory\n * @param {Player} player\n *        A Video.js player.\n */\n\n/**\n * Define a middleware that the player should use by way of a factory function\n * that returns a middleware object.\n *\n * @param  {string} type\n *         The MIME type to match or `\"*\"` for all MIME types.\n *\n * @param  {MiddlewareFactory} middleware\n *         A middleware factory function that will be executed for\n *         matching types.\n */\n\nfunction use(type, middleware) {\n  middlewares[type] = middlewares[type] || [];\n  middlewares[type].push(middleware);\n}\n/**\n * Asynchronously sets a source using middleware by recursing through any\n * matching middlewares and calling `setSource` on each, passing along the\n * previous returned value each time.\n *\n * @param  {Player} player\n *         A {@link Player} instance.\n *\n * @param  {Tech~SourceObject} src\n *         A source object.\n *\n * @param  {Function}\n *         The next middleware to run.\n */\n\nfunction setSource(player, src, next) {\n  player.setTimeout(function () {\n    return setSourceHelper(src, middlewares[src.type], next, player);\n  }, 1);\n}\n/**\n * When the tech is set, passes the tech to each middleware's `setTech` method.\n *\n * @param {Object[]} middleware\n *        An array of middleware instances.\n *\n * @param {Tech} tech\n *        A Video.js tech.\n */\n\nfunction setTech(middleware, tech) {\n  middleware.forEach(function (mw) {\n    return mw.setTech && mw.setTech(tech);\n  });\n}\n/**\n * Calls a getter on the tech first, through each middleware\n * from right to left to the player.\n *\n * @param  {Object[]} middleware\n *         An array of middleware instances.\n *\n * @param  {Tech} tech\n *         The current tech.\n *\n * @param  {string} method\n *         A method name.\n *\n * @return {Mixed}\n *         The final value from the tech after middleware has intercepted it.\n */\n\nfunction get(middleware, tech, method) {\n  return middleware.reduceRight(middlewareIterator(method), tech[method]());\n}\n/**\n * Takes the argument given to the player and calls the setter method on each\n * middleware from left to right to the tech.\n *\n * @param  {Object[]} middleware\n *         An array of middleware instances.\n *\n * @param  {Tech} tech\n *         The current tech.\n *\n * @param  {string} method\n *         A method name.\n *\n * @param  {Mixed} arg\n *         The value to set on the tech.\n *\n * @return {Mixed}\n *         The return value of the `method` of the `tech`.\n */\n\nfunction set(middleware, tech, method, arg) {\n  return tech[method](middleware.reduce(middlewareIterator(method), arg));\n}\n/**\n * Takes the argument given to the player and calls the `call` version of the\n * method on each middleware from left to right.\n *\n * Then, call the passed in method on the tech and return the result unchanged\n * back to the player, through middleware, this time from right to left.\n *\n * @param  {Object[]} middleware\n *         An array of middleware instances.\n *\n * @param  {Tech} tech\n *         The current tech.\n *\n * @param  {string} method\n *         A method name.\n *\n * @param  {Mixed} arg\n *         The value to set on the tech.\n *\n * @return {Mixed}\n *         The return value of the `method` of the `tech`, regardless of the\n *         return values of middlewares.\n */\n\nfunction mediate(middleware, tech, method, arg) {\n  if (arg === void 0) {\n    arg = null;\n  }\n\n  var callMethod = 'call' + toTitleCase$1(method);\n  var middlewareValue = middleware.reduce(middlewareIterator(callMethod), arg);\n  var terminated = middlewareValue === TERMINATOR; // deprecated. The `null` return value should instead return TERMINATOR to\n  // prevent confusion if a techs method actually returns null.\n\n  var returnValue = terminated ? null : tech[method](middlewareValue);\n  executeRight(middleware, method, returnValue, terminated);\n  return returnValue;\n}\n/**\n * Enumeration of allowed getters where the keys are method names.\n *\n * @type {Object}\n */\n\nvar allowedGetters = {\n  buffered: 1,\n  currentTime: 1,\n  duration: 1,\n  muted: 1,\n  played: 1,\n  paused: 1,\n  seekable: 1,\n  volume: 1,\n  ended: 1\n};\n/**\n * Enumeration of allowed setters where the keys are method names.\n *\n * @type {Object}\n */\n\nvar allowedSetters = {\n  setCurrentTime: 1,\n  setMuted: 1,\n  setVolume: 1\n};\n/**\n * Enumeration of allowed mediators where the keys are method names.\n *\n * @type {Object}\n */\n\nvar allowedMediators = {\n  play: 1,\n  pause: 1\n};\n\nfunction middlewareIterator(method) {\n  return function (value, mw) {\n    // if the previous middleware terminated, pass along the termination\n    if (value === TERMINATOR) {\n      return TERMINATOR;\n    }\n\n    if (mw[method]) {\n      return mw[method](value);\n    }\n\n    return value;\n  };\n}\n\nfunction executeRight(mws, method, value, terminated) {\n  for (var i = mws.length - 1; i >= 0; i--) {\n    var mw = mws[i];\n\n    if (mw[method]) {\n      mw[method](terminated, value);\n    }\n  }\n}\n/**\n * Clear the middleware cache for a player.\n *\n * @param  {Player} player\n *         A {@link Player} instance.\n */\n\n\nfunction clearCacheForPlayer(player) {\n  middlewareInstances[player.id()] = null;\n}\n/**\n * {\n *  [playerId]: [[mwFactory, mwInstance], ...]\n * }\n *\n * @private\n */\n\nfunction getOrCreateFactory(player, mwFactory) {\n  var mws = middlewareInstances[player.id()];\n  var mw = null;\n\n  if (mws === undefined || mws === null) {\n    mw = mwFactory(player);\n    middlewareInstances[player.id()] = [[mwFactory, mw]];\n    return mw;\n  }\n\n  for (var i = 0; i < mws.length; i++) {\n    var _mws$i = mws[i],\n        mwf = _mws$i[0],\n        mwi = _mws$i[1];\n\n    if (mwf !== mwFactory) {\n      continue;\n    }\n\n    mw = mwi;\n  }\n\n  if (mw === null) {\n    mw = mwFactory(player);\n    mws.push([mwFactory, mw]);\n  }\n\n  return mw;\n}\n\nfunction setSourceHelper(src, middleware, next, player, acc, lastRun) {\n  if (src === void 0) {\n    src = {};\n  }\n\n  if (middleware === void 0) {\n    middleware = [];\n  }\n\n  if (acc === void 0) {\n    acc = [];\n  }\n\n  if (lastRun === void 0) {\n    lastRun = false;\n  }\n\n  var _middleware = middleware,\n      mwFactory = _middleware[0],\n      mwrest = _middleware.slice(1); // if mwFactory is a string, then we're at a fork in the road\n\n\n  if (typeof mwFactory === 'string') {\n    setSourceHelper(src, middlewares[mwFactory], next, player, acc, lastRun); // if we have an mwFactory, call it with the player to get the mw,\n    // then call the mw's setSource method\n  } else if (mwFactory) {\n    var mw = getOrCreateFactory(player, mwFactory); // if setSource isn't present, implicitly select this middleware\n\n    if (!mw.setSource) {\n      acc.push(mw);\n      return setSourceHelper(src, mwrest, next, player, acc, lastRun);\n    }\n\n    mw.setSource(assign({}, src), function (err, _src) {\n      // something happened, try the next middleware on the current level\n      // make sure to use the old src\n      if (err) {\n        return setSourceHelper(src, mwrest, next, player, acc, lastRun);\n      } // we've succeeded, now we need to go deeper\n\n\n      acc.push(mw); // if it's the same type, continue down the current chain\n      // otherwise, we want to go down the new chain\n\n      setSourceHelper(_src, src.type === _src.type ? mwrest : middlewares[_src.type], next, player, acc, lastRun);\n    });\n  } else if (mwrest.length) {\n    setSourceHelper(src, mwrest, next, player, acc, lastRun);\n  } else if (lastRun) {\n    next(src, acc);\n  } else {\n    setSourceHelper(src, middlewares['*'], next, player, acc, true);\n  }\n}\n\n/**\n * Mimetypes\n *\n * @see http://hul.harvard.edu/ois/////systems/wax/wax-public-help/mimetypes.htm\n * @typedef Mimetypes~Kind\n * @enum\n */\n\nvar MimetypesKind = {\n  opus: 'video/ogg',\n  ogv: 'video/ogg',\n  mp4: 'video/mp4',\n  mov: 'video/mp4',\n  m4v: 'video/mp4',\n  mkv: 'video/x-matroska',\n  m4a: 'audio/mp4',\n  mp3: 'audio/mpeg',\n  aac: 'audio/aac',\n  caf: 'audio/x-caf',\n  flac: 'audio/flac',\n  oga: 'audio/ogg',\n  wav: 'audio/wav',\n  m3u8: 'application/x-mpegURL',\n  jpg: 'image/jpeg',\n  jpeg: 'image/jpeg',\n  gif: 'image/gif',\n  png: 'image/png',\n  svg: 'image/svg+xml',\n  webp: 'image/webp'\n};\n/**\n * Get the mimetype of a given src url if possible\n *\n * @param {string} src\n *        The url to the src\n *\n * @return {string}\n *         return the mimetype if it was known or empty string otherwise\n */\n\nvar getMimetype = function getMimetype(src) {\n  if (src === void 0) {\n    src = '';\n  }\n\n  var ext = getFileExtension(src);\n  var mimetype = MimetypesKind[ext.toLowerCase()];\n  return mimetype || '';\n};\n/**\n * Find the mime type of a given source string if possible. Uses the player\n * source cache.\n *\n * @param {Player} player\n *        The player object\n *\n * @param {string} src\n *        The source string\n *\n * @return {string}\n *         The type that was found\n */\n\nvar findMimetype = function findMimetype(player, src) {\n  if (!src) {\n    return '';\n  } // 1. check for the type in the `source` cache\n\n\n  if (player.cache_.source.src === src && player.cache_.source.type) {\n    return player.cache_.source.type;\n  } // 2. see if we have this source in our `currentSources` cache\n\n\n  var matchingSources = player.cache_.sources.filter(function (s) {\n    return s.src === src;\n  });\n\n  if (matchingSources.length) {\n    return matchingSources[0].type;\n  } // 3. look for the src url in source elements and use the type there\n\n\n  var sources = player.$$('source');\n\n  for (var i = 0; i < sources.length; i++) {\n    var s = sources[i];\n\n    if (s.type && s.src && s.src === src) {\n      return s.type;\n    }\n  } // 4. finally fallback to our list of mime types based on src url extension\n\n\n  return getMimetype(src);\n};\n\n/**\n * @module filter-source\n */\n/**\n * Filter out single bad source objects or multiple source objects in an\n * array. Also flattens nested source object arrays into a 1 dimensional\n * array of source objects.\n *\n * @param {Tech~SourceObject|Tech~SourceObject[]} src\n *        The src object to filter\n *\n * @return {Tech~SourceObject[]}\n *         An array of sourceobjects containing only valid sources\n *\n * @private\n */\n\nvar filterSource = function filterSource(src) {\n  // traverse array\n  if (Array.isArray(src)) {\n    var newsrc = [];\n    src.forEach(function (srcobj) {\n      srcobj = filterSource(srcobj);\n\n      if (Array.isArray(srcobj)) {\n        newsrc = newsrc.concat(srcobj);\n      } else if (isObject(srcobj)) {\n        newsrc.push(srcobj);\n      }\n    });\n    src = newsrc;\n  } else if (typeof src === 'string' && src.trim()) {\n    // convert string into object\n    src = [fixSource({\n      src: src\n    })];\n  } else if (isObject(src) && typeof src.src === 'string' && src.src && src.src.trim()) {\n    // src is already valid\n    src = [fixSource(src)];\n  } else {\n    // invalid source, turn it into an empty array\n    src = [];\n  }\n\n  return src;\n};\n/**\n * Checks src mimetype, adding it when possible\n *\n * @param {Tech~SourceObject} src\n *        The src object to check\n * @return {Tech~SourceObject}\n *        src Object with known type\n */\n\n\nfunction fixSource(src) {\n  if (!src.type) {\n    var mimetype = getMimetype(src.src);\n\n    if (mimetype) {\n      src.type = mimetype;\n    }\n  }\n\n  return src;\n}\n\n/**\n * The `MediaLoader` is the `Component` that decides which playback technology to load\n * when a player is initialized.\n *\n * @extends Component\n */\n\nvar MediaLoader = /*#__PURE__*/function (_Component) {\n  _inheritsLoose(MediaLoader, _Component);\n\n  /**\n   * Create an instance of this class.\n   *\n   * @param {Player} player\n   *        The `Player` that this class should attach to.\n   *\n   * @param {Object} [options]\n   *        The key/value store of player options.\n   *\n   * @param {Component~ReadyCallback} [ready]\n   *        The function that is run when this component is ready.\n   */\n  function MediaLoader(player, options, ready) {\n    var _this;\n\n    // MediaLoader has no element\n    var options_ = mergeOptions$3({\n      createEl: false\n    }, options);\n    _this = _Component.call(this, player, options_, ready) || this; // If there are no sources when the player is initialized,\n    // load the first supported playback technology.\n\n    if (!options.playerOptions.sources || options.playerOptions.sources.length === 0) {\n      for (var i = 0, j = options.playerOptions.techOrder; i < j.length; i++) {\n        var techName = toTitleCase$1(j[i]);\n        var tech = Tech.getTech(techName); // Support old behavior of techs being registered as components.\n        // Remove once that deprecated behavior is removed.\n\n        if (!techName) {\n          tech = Component$1.getComponent(techName);\n        } // Check if the browser supports this technology\n\n\n        if (tech && tech.isSupported()) {\n          player.loadTech_(techName);\n          break;\n        }\n      }\n    } else {\n      // Loop through playback technologies (e.g. HTML5) and check for support.\n      // Then load the best source.\n      // A few assumptions here:\n      //   All playback technologies respect preload false.\n      player.src(options.playerOptions.sources);\n    }\n\n    return _this;\n  }\n\n  return MediaLoader;\n}(Component$1);\n\nComponent$1.registerComponent('MediaLoader', MediaLoader);\n\n/**\n * Component which is clickable or keyboard actionable, but is not a\n * native HTML button.\n *\n * @extends Component\n */\n\nvar ClickableComponent = /*#__PURE__*/function (_Component) {\n  _inheritsLoose(ClickableComponent, _Component);\n\n  /**\n   * Creates an instance of this class.\n   *\n   * @param  {Player} player\n   *         The `Player` that this class should be attached to.\n   *\n   * @param  {Object} [options]\n   *         The key/value store of player options.\n   *\n   * @param  {function} [options.clickHandler]\n   *         The function to call when the button is clicked / activated\n   */\n  function ClickableComponent(player, options) {\n    var _this;\n\n    _this = _Component.call(this, player, options) || this;\n\n    _this.handleMouseOver_ = function (e) {\n      return _this.handleMouseOver(e);\n    };\n\n    _this.handleMouseOut_ = function (e) {\n      return _this.handleMouseOut(e);\n    };\n\n    _this.handleClick_ = function (e) {\n      return _this.handleClick(e);\n    };\n\n    _this.handleKeyDown_ = function (e) {\n      return _this.handleKeyDown(e);\n    };\n\n    _this.emitTapEvents();\n\n    _this.enable();\n\n    return _this;\n  }\n  /**\n   * Create the `ClickableComponent`s DOM element.\n   *\n   * @param {string} [tag=div]\n   *        The element's node type.\n   *\n   * @param {Object} [props={}]\n   *        An object of properties that should be set on the element.\n   *\n   * @param {Object} [attributes={}]\n   *        An object of attributes that should be set on the element.\n   *\n   * @return {Element}\n   *         The element that gets created.\n   */\n\n\n  var _proto = ClickableComponent.prototype;\n\n  _proto.createEl = function createEl$1(tag, props, attributes) {\n    if (tag === void 0) {\n      tag = 'div';\n    }\n\n    if (props === void 0) {\n      props = {};\n    }\n\n    if (attributes === void 0) {\n      attributes = {};\n    }\n\n    props = assign({\n      className: this.buildCSSClass(),\n      tabIndex: 0\n    }, props);\n\n    if (tag === 'button') {\n      log$1.error(\"Creating a ClickableComponent with an HTML element of \" + tag + \" is not supported; use a Button instead.\");\n    } // Add ARIA attributes for clickable element which is not a native HTML button\n\n\n    attributes = assign({\n      role: 'button'\n    }, attributes);\n    this.tabIndex_ = props.tabIndex;\n    var el = createEl(tag, props, attributes);\n    el.appendChild(createEl('span', {\n      className: 'vjs-icon-placeholder'\n    }, {\n      'aria-hidden': true\n    }));\n    this.createControlTextEl(el);\n    return el;\n  };\n\n  _proto.dispose = function dispose() {\n    // remove controlTextEl_ on dispose\n    this.controlTextEl_ = null;\n\n    _Component.prototype.dispose.call(this);\n  }\n  /**\n   * Create a control text element on this `ClickableComponent`\n   *\n   * @param {Element} [el]\n   *        Parent element for the control text.\n   *\n   * @return {Element}\n   *         The control text element that gets created.\n   */\n  ;\n\n  _proto.createControlTextEl = function createControlTextEl(el) {\n    this.controlTextEl_ = createEl('span', {\n      className: 'vjs-control-text'\n    }, {\n      // let the screen reader user know that the text of the element may change\n      'aria-live': 'polite'\n    });\n\n    if (el) {\n      el.appendChild(this.controlTextEl_);\n    }\n\n    this.controlText(this.controlText_, el);\n    return this.controlTextEl_;\n  }\n  /**\n   * Get or set the localize text to use for the controls on the `ClickableComponent`.\n   *\n   * @param {string} [text]\n   *        Control text for element.\n   *\n   * @param {Element} [el=this.el()]\n   *        Element to set the title on.\n   *\n   * @return {string}\n   *         - The control text when getting\n   */\n  ;\n\n  _proto.controlText = function controlText(text, el) {\n    if (el === void 0) {\n      el = this.el();\n    }\n\n    if (text === undefined) {\n      return this.controlText_ || 'Need Text';\n    }\n\n    var localizedText = this.localize(text);\n    this.controlText_ = text;\n    textContent(this.controlTextEl_, localizedText);\n\n    if (!this.nonIconControl && !this.player_.options_.noUITitleAttributes) {\n      // Set title attribute if only an icon is shown\n      el.setAttribute('title', localizedText);\n    }\n  }\n  /**\n   * Builds the default DOM `className`.\n   *\n   * @return {string}\n   *         The DOM `className` for this object.\n   */\n  ;\n\n  _proto.buildCSSClass = function buildCSSClass() {\n    return \"vjs-control vjs-button \" + _Component.prototype.buildCSSClass.call(this);\n  }\n  /**\n   * Enable this `ClickableComponent`\n   */\n  ;\n\n  _proto.enable = function enable() {\n    if (!this.enabled_) {\n      this.enabled_ = true;\n      this.removeClass('vjs-disabled');\n      this.el_.setAttribute('aria-disabled', 'false');\n\n      if (typeof this.tabIndex_ !== 'undefined') {\n        this.el_.setAttribute('tabIndex', this.tabIndex_);\n      }\n\n      this.on(['tap', 'click'], this.handleClick_);\n      this.on('keydown', this.handleKeyDown_);\n    }\n  }\n  /**\n   * Disable this `ClickableComponent`\n   */\n  ;\n\n  _proto.disable = function disable() {\n    this.enabled_ = false;\n    this.addClass('vjs-disabled');\n    this.el_.setAttribute('aria-disabled', 'true');\n\n    if (typeof this.tabIndex_ !== 'undefined') {\n      this.el_.removeAttribute('tabIndex');\n    }\n\n    this.off('mouseover', this.handleMouseOver_);\n    this.off('mouseout', this.handleMouseOut_);\n    this.off(['tap', 'click'], this.handleClick_);\n    this.off('keydown', this.handleKeyDown_);\n  }\n  /**\n   * Handles language change in ClickableComponent for the player in components\n   *\n   *\n   */\n  ;\n\n  _proto.handleLanguagechange = function handleLanguagechange() {\n    this.controlText(this.controlText_);\n  }\n  /**\n   * Event handler that is called when a `ClickableComponent` receives a\n   * `click` or `tap` event.\n   *\n   * @param {EventTarget~Event} event\n   *        The `tap` or `click` event that caused this function to be called.\n   *\n   * @listens tap\n   * @listens click\n   * @abstract\n   */\n  ;\n\n  _proto.handleClick = function handleClick(event) {\n    if (this.options_.clickHandler) {\n      this.options_.clickHandler.call(this, arguments);\n    }\n  }\n  /**\n   * Event handler that is called when a `ClickableComponent` receives a\n   * `keydown` event.\n   *\n   * By default, if the key is Space or Enter, it will trigger a `click` event.\n   *\n   * @param {EventTarget~Event} event\n   *        The `keydown` event that caused this function to be called.\n   *\n   * @listens keydown\n   */\n  ;\n\n  _proto.handleKeyDown = function handleKeyDown(event) {\n    // Support Space or Enter key operation to fire a click event. Also,\n    // prevent the event from propagating through the DOM and triggering\n    // Player hotkeys.\n    if (keycode.isEventKey(event, 'Space') || keycode.isEventKey(event, 'Enter')) {\n      event.preventDefault();\n      event.stopPropagation();\n      this.trigger('click');\n    } else {\n      // Pass keypress handling up for unsupported keys\n      _Component.prototype.handleKeyDown.call(this, event);\n    }\n  };\n\n  return ClickableComponent;\n}(Component$1);\n\nComponent$1.registerComponent('ClickableComponent', ClickableComponent);\n\n/**\n * A `ClickableComponent` that handles showing the poster image for the player.\n *\n * @extends ClickableComponent\n */\n\nvar PosterImage = /*#__PURE__*/function (_ClickableComponent) {\n  _inheritsLoose(PosterImage, _ClickableComponent);\n\n  /**\n   * Create an instance of this class.\n   *\n   * @param {Player} player\n   *        The `Player` that this class should attach to.\n   *\n   * @param {Object} [options]\n   *        The key/value store of player options.\n   */\n  function PosterImage(player, options) {\n    var _this;\n\n    _this = _ClickableComponent.call(this, player, options) || this;\n\n    _this.update();\n\n    _this.update_ = function (e) {\n      return _this.update(e);\n    };\n\n    player.on('posterchange', _this.update_);\n    return _this;\n  }\n  /**\n   * Clean up and dispose of the `PosterImage`.\n   */\n\n\n  var _proto = PosterImage.prototype;\n\n  _proto.dispose = function dispose() {\n    this.player().off('posterchange', this.update_);\n\n    _ClickableComponent.prototype.dispose.call(this);\n  }\n  /**\n   * Create the `PosterImage`s DOM element.\n   *\n   * @return {Element}\n   *         The element that gets created.\n   */\n  ;\n\n  _proto.createEl = function createEl$1() {\n    var el = createEl('div', {\n      className: 'vjs-poster',\n      // Don't want poster to be tabbable.\n      tabIndex: -1\n    });\n    return el;\n  }\n  /**\n   * An {@link EventTarget~EventListener} for {@link Player#posterchange} events.\n   *\n   * @listens Player#posterchange\n   *\n   * @param {EventTarget~Event} [event]\n   *        The `Player#posterchange` event that triggered this function.\n   */\n  ;\n\n  _proto.update = function update(event) {\n    var url = this.player().poster();\n    this.setSrc(url); // If there's no poster source we should display:none on this component\n    // so it's not still clickable or right-clickable\n\n    if (url) {\n      this.show();\n    } else {\n      this.hide();\n    }\n  }\n  /**\n   * Set the source of the `PosterImage` depending on the display method.\n   *\n   * @param {string} url\n   *        The URL to the source for the `PosterImage`.\n   */\n  ;\n\n  _proto.setSrc = function setSrc(url) {\n    var backgroundImage = ''; // Any falsy value should stay as an empty string, otherwise\n    // this will throw an extra error\n\n    if (url) {\n      backgroundImage = \"url(\\\"\" + url + \"\\\")\";\n    }\n\n    this.el_.style.backgroundImage = backgroundImage;\n  }\n  /**\n   * An {@link EventTarget~EventListener} for clicks on the `PosterImage`. See\n   * {@link ClickableComponent#handleClick} for instances where this will be triggered.\n   *\n   * @listens tap\n   * @listens click\n   * @listens keydown\n   *\n   * @param {EventTarget~Event} event\n   +        The `click`, `tap` or `keydown` event that caused this function to be called.\n   */\n  ;\n\n  _proto.handleClick = function handleClick(event) {\n    // We don't want a click to trigger playback when controls are disabled\n    if (!this.player_.controls()) {\n      return;\n    }\n\n    var sourceIsEncrypted = this.player_.usingPlugin('eme') && this.player_.eme.sessions && this.player_.eme.sessions.length > 0;\n\n    if (this.player_.tech(true) && // We've observed a bug in IE and Edge when playing back DRM content where\n    // calling .focus() on the video element causes the video to go black,\n    // so we avoid it in that specific case\n    !((IE_VERSION || IS_EDGE) && sourceIsEncrypted)) {\n      this.player_.tech(true).focus();\n    }\n\n    if (this.player_.paused()) {\n      silencePromise(this.player_.play());\n    } else {\n      this.player_.pause();\n    }\n  };\n\n  return PosterImage;\n}(ClickableComponent);\n\nComponent$1.registerComponent('PosterImage', PosterImage);\n\nvar darkGray = '#222';\nvar lightGray = '#ccc';\nvar fontMap = {\n  monospace: 'monospace',\n  sansSerif: 'sans-serif',\n  serif: 'serif',\n  monospaceSansSerif: '\"Andale Mono\", \"Lucida Console\", monospace',\n  monospaceSerif: '\"Courier New\", monospace',\n  proportionalSansSerif: 'sans-serif',\n  proportionalSerif: 'serif',\n  casual: '\"Comic Sans MS\", Impact, fantasy',\n  script: '\"Monotype Corsiva\", cursive',\n  smallcaps: '\"Andale Mono\", \"Lucida Console\", monospace, sans-serif'\n};\n/**\n * Construct an rgba color from a given hex color code.\n *\n * @param {number} color\n *        Hex number for color, like #f0e or #f604e2.\n *\n * @param {number} opacity\n *        Value for opacity, 0.0 - 1.0.\n *\n * @return {string}\n *         The rgba color that was created, like 'rgba(255, 0, 0, 0.3)'.\n */\n\nfunction constructColor(color, opacity) {\n  var hex;\n\n  if (color.length === 4) {\n    // color looks like \"#f0e\"\n    hex = color[1] + color[1] + color[2] + color[2] + color[3] + color[3];\n  } else if (color.length === 7) {\n    // color looks like \"#f604e2\"\n    hex = color.slice(1);\n  } else {\n    throw new Error('Invalid color code provided, ' + color + '; must be formatted as e.g. #f0e or #f604e2.');\n  }\n\n  return 'rgba(' + parseInt(hex.slice(0, 2), 16) + ',' + parseInt(hex.slice(2, 4), 16) + ',' + parseInt(hex.slice(4, 6), 16) + ',' + opacity + ')';\n}\n/**\n * Try to update the style of a DOM element. Some style changes will throw an error,\n * particularly in IE8. Those should be noops.\n *\n * @param {Element} el\n *        The DOM element to be styled.\n *\n * @param {string} style\n *        The CSS property on the element that should be styled.\n *\n * @param {string} rule\n *        The style rule that should be applied to the property.\n *\n * @private\n */\n\nfunction tryUpdateStyle(el, style, rule) {\n  try {\n    el.style[style] = rule;\n  } catch (e) {\n    // Satisfies linter.\n    return;\n  }\n}\n/**\n * The component for displaying text track cues.\n *\n * @extends Component\n */\n\n\nvar TextTrackDisplay = /*#__PURE__*/function (_Component) {\n  _inheritsLoose(TextTrackDisplay, _Component);\n\n  /**\n   * Creates an instance of this class.\n   *\n   * @param {Player} player\n   *        The `Player` that this class should be attached to.\n   *\n   * @param {Object} [options]\n   *        The key/value store of player options.\n   *\n   * @param {Component~ReadyCallback} [ready]\n   *        The function to call when `TextTrackDisplay` is ready.\n   */\n  function TextTrackDisplay(player, options, ready) {\n    var _this;\n\n    _this = _Component.call(this, player, options, ready) || this;\n\n    var updateDisplayHandler = function updateDisplayHandler(e) {\n      return _this.updateDisplay(e);\n    };\n\n    player.on('loadstart', function (e) {\n      return _this.toggleDisplay(e);\n    });\n    player.on('texttrackchange', updateDisplayHandler);\n    player.on('loadedmetadata', function (e) {\n      return _this.preselectTrack(e);\n    }); // This used to be called during player init, but was causing an error\n    // if a track should show by default and the display hadn't loaded yet.\n    // Should probably be moved to an external track loader when we support\n    // tracks that don't need a display.\n\n    player.ready(bind(_assertThisInitialized(_this), function () {\n      if (player.tech_ && player.tech_.featuresNativeTextTracks) {\n        this.hide();\n        return;\n      }\n\n      player.on('fullscreenchange', updateDisplayHandler);\n      player.on('playerresize', updateDisplayHandler);\n      window.addEventListener('orientationchange', updateDisplayHandler);\n      player.on('dispose', function () {\n        return window.removeEventListener('orientationchange', updateDisplayHandler);\n      });\n      var tracks = this.options_.playerOptions.tracks || [];\n\n      for (var i = 0; i < tracks.length; i++) {\n        this.player_.addRemoteTextTrack(tracks[i], true);\n      }\n\n      this.preselectTrack();\n    }));\n    return _this;\n  }\n  /**\n  * Preselect a track following this precedence:\n  * - matches the previously selected {@link TextTrack}'s language and kind\n  * - matches the previously selected {@link TextTrack}'s language only\n  * - is the first default captions track\n  * - is the first default descriptions track\n  *\n  * @listens Player#loadstart\n  */\n\n\n  var _proto = TextTrackDisplay.prototype;\n\n  _proto.preselectTrack = function preselectTrack() {\n    var modes = {\n      captions: 1,\n      subtitles: 1\n    };\n    var trackList = this.player_.textTracks();\n    var userPref = this.player_.cache_.selectedLanguage;\n    var firstDesc;\n    var firstCaptions;\n    var preferredTrack;\n\n    for (var i = 0; i < trackList.length; i++) {\n      var track = trackList[i];\n\n      if (userPref && userPref.enabled && userPref.language && userPref.language === track.language && track.kind in modes) {\n        // Always choose the track that matches both language and kind\n        if (track.kind === userPref.kind) {\n          preferredTrack = track; // or choose the first track that matches language\n        } else if (!preferredTrack) {\n          preferredTrack = track;\n        } // clear everything if offTextTrackMenuItem was clicked\n\n      } else if (userPref && !userPref.enabled) {\n        preferredTrack = null;\n        firstDesc = null;\n        firstCaptions = null;\n      } else if (track[\"default\"]) {\n        if (track.kind === 'descriptions' && !firstDesc) {\n          firstDesc = track;\n        } else if (track.kind in modes && !firstCaptions) {\n          firstCaptions = track;\n        }\n      }\n    } // The preferredTrack matches the user preference and takes\n    // precedence over all the other tracks.\n    // So, display the preferredTrack before the first default track\n    // and the subtitles/captions track before the descriptions track\n\n\n    if (preferredTrack) {\n      preferredTrack.mode = 'showing';\n    } else if (firstCaptions) {\n      firstCaptions.mode = 'showing';\n    } else if (firstDesc) {\n      firstDesc.mode = 'showing';\n    }\n  }\n  /**\n   * Turn display of {@link TextTrack}'s from the current state into the other state.\n   * There are only two states:\n   * - 'shown'\n   * - 'hidden'\n   *\n   * @listens Player#loadstart\n   */\n  ;\n\n  _proto.toggleDisplay = function toggleDisplay() {\n    if (this.player_.tech_ && this.player_.tech_.featuresNativeTextTracks) {\n      this.hide();\n    } else {\n      this.show();\n    }\n  }\n  /**\n   * Create the {@link Component}'s DOM element.\n   *\n   * @return {Element}\n   *         The element that was created.\n   */\n  ;\n\n  _proto.createEl = function createEl() {\n    return _Component.prototype.createEl.call(this, 'div', {\n      className: 'vjs-text-track-display'\n    }, {\n      'aria-live': 'off',\n      'aria-atomic': 'true'\n    });\n  }\n  /**\n   * Clear all displayed {@link TextTrack}s.\n   */\n  ;\n\n  _proto.clearDisplay = function clearDisplay() {\n    if (typeof window.WebVTT === 'function') {\n      window.WebVTT.processCues(window, [], this.el_);\n    }\n  }\n  /**\n   * Update the displayed TextTrack when a either a {@link Player#texttrackchange} or\n   * a {@link Player#fullscreenchange} is fired.\n   *\n   * @listens Player#texttrackchange\n   * @listens Player#fullscreenchange\n   */\n  ;\n\n  _proto.updateDisplay = function updateDisplay() {\n    var tracks = this.player_.textTracks();\n    var allowMultipleShowingTracks = this.options_.allowMultipleShowingTracks;\n    this.clearDisplay();\n\n    if (allowMultipleShowingTracks) {\n      var showingTracks = [];\n\n      for (var _i = 0; _i < tracks.length; ++_i) {\n        var track = tracks[_i];\n\n        if (track.mode !== 'showing') {\n          continue;\n        }\n\n        showingTracks.push(track);\n      }\n\n      this.updateForTrack(showingTracks);\n      return;\n    } //  Track display prioritization model: if multiple tracks are 'showing',\n    //  display the first 'subtitles' or 'captions' track which is 'showing',\n    //  otherwise display the first 'descriptions' track which is 'showing'\n\n\n    var descriptionsTrack = null;\n    var captionsSubtitlesTrack = null;\n    var i = tracks.length;\n\n    while (i--) {\n      var _track = tracks[i];\n\n      if (_track.mode === 'showing') {\n        if (_track.kind === 'descriptions') {\n          descriptionsTrack = _track;\n        } else {\n          captionsSubtitlesTrack = _track;\n        }\n      }\n    }\n\n    if (captionsSubtitlesTrack) {\n      if (this.getAttribute('aria-live') !== 'off') {\n        this.setAttribute('aria-live', 'off');\n      }\n\n      this.updateForTrack(captionsSubtitlesTrack);\n    } else if (descriptionsTrack) {\n      if (this.getAttribute('aria-live') !== 'assertive') {\n        this.setAttribute('aria-live', 'assertive');\n      }\n\n      this.updateForTrack(descriptionsTrack);\n    }\n  }\n  /**\n   * Style {@Link TextTrack} activeCues according to {@Link TextTrackSettings}.\n   *\n   * @param {TextTrack} track\n   *        Text track object containing active cues to style.\n   */\n  ;\n\n  _proto.updateDisplayState = function updateDisplayState(track) {\n    var overrides = this.player_.textTrackSettings.getValues();\n    var cues = track.activeCues;\n    var i = cues.length;\n\n    while (i--) {\n      var cue = cues[i];\n\n      if (!cue) {\n        continue;\n      }\n\n      var cueDiv = cue.displayState;\n\n      if (overrides.color) {\n        cueDiv.firstChild.style.color = overrides.color;\n      }\n\n      if (overrides.textOpacity) {\n        tryUpdateStyle(cueDiv.firstChild, 'color', constructColor(overrides.color || '#fff', overrides.textOpacity));\n      }\n\n      if (overrides.backgroundColor) {\n        cueDiv.firstChild.style.backgroundColor = overrides.backgroundColor;\n      }\n\n      if (overrides.backgroundOpacity) {\n        tryUpdateStyle(cueDiv.firstChild, 'backgroundColor', constructColor(overrides.backgroundColor || '#000', overrides.backgroundOpacity));\n      }\n\n      if (overrides.windowColor) {\n        if (overrides.windowOpacity) {\n          tryUpdateStyle(cueDiv, 'backgroundColor', constructColor(overrides.windowColor, overrides.windowOpacity));\n        } else {\n          cueDiv.style.backgroundColor = overrides.windowColor;\n        }\n      }\n\n      if (overrides.edgeStyle) {\n        if (overrides.edgeStyle === 'dropshadow') {\n          cueDiv.firstChild.style.textShadow = \"2px 2px 3px \" + darkGray + \", 2px 2px 4px \" + darkGray + \", 2px 2px 5px \" + darkGray;\n        } else if (overrides.edgeStyle === 'raised') {\n          cueDiv.firstChild.style.textShadow = \"1px 1px \" + darkGray + \", 2px 2px \" + darkGray + \", 3px 3px \" + darkGray;\n        } else if (overrides.edgeStyle === 'depressed') {\n          cueDiv.firstChild.style.textShadow = \"1px 1px \" + lightGray + \", 0 1px \" + lightGray + \", -1px -1px \" + darkGray + \", 0 -1px \" + darkGray;\n        } else if (overrides.edgeStyle === 'uniform') {\n          cueDiv.firstChild.style.textShadow = \"0 0 4px \" + darkGray + \", 0 0 4px \" + darkGray + \", 0 0 4px \" + darkGray + \", 0 0 4px \" + darkGray;\n        }\n      }\n\n      if (overrides.fontPercent && overrides.fontPercent !== 1) {\n        var fontSize = window.parseFloat(cueDiv.style.fontSize);\n        cueDiv.style.fontSize = fontSize * overrides.fontPercent + 'px';\n        cueDiv.style.height = 'auto';\n        cueDiv.style.top = 'auto';\n      }\n\n      if (overrides.fontFamily && overrides.fontFamily !== 'default') {\n        if (overrides.fontFamily === 'small-caps') {\n          cueDiv.firstChild.style.fontVariant = 'small-caps';\n        } else {\n          cueDiv.firstChild.style.fontFamily = fontMap[overrides.fontFamily];\n        }\n      }\n    }\n  }\n  /**\n   * Add an {@link TextTrack} to to the {@link Tech}s {@link TextTrackList}.\n   *\n   * @param {TextTrack|TextTrack[]} tracks\n   *        Text track object or text track array to be added to the list.\n   */\n  ;\n\n  _proto.updateForTrack = function updateForTrack(tracks) {\n    if (!Array.isArray(tracks)) {\n      tracks = [tracks];\n    }\n\n    if (typeof window.WebVTT !== 'function' || tracks.every(function (track) {\n      return !track.activeCues;\n    })) {\n      return;\n    }\n\n    var cues = []; // push all active track cues\n\n    for (var i = 0; i < tracks.length; ++i) {\n      var track = tracks[i];\n\n      for (var j = 0; j < track.activeCues.length; ++j) {\n        cues.push(track.activeCues[j]);\n      }\n    } // removes all cues before it processes new ones\n\n\n    window.WebVTT.processCues(window, cues, this.el_); // add unique class to each language text track & add settings styling if necessary\n\n    for (var _i2 = 0; _i2 < tracks.length; ++_i2) {\n      var _track2 = tracks[_i2];\n\n      for (var _j = 0; _j < _track2.activeCues.length; ++_j) {\n        var cueEl = _track2.activeCues[_j].displayState;\n        addClass(cueEl, 'vjs-text-track-cue');\n        addClass(cueEl, 'vjs-text-track-cue-' + (_track2.language ? _track2.language : _i2));\n      }\n\n      if (this.player_.textTrackSettings) {\n        this.updateDisplayState(_track2);\n      }\n    }\n  };\n\n  return TextTrackDisplay;\n}(Component$1);\n\nComponent$1.registerComponent('TextTrackDisplay', TextTrackDisplay);\n\n/**\n * A loading spinner for use during waiting/loading events.\n *\n * @extends Component\n */\n\nvar LoadingSpinner = /*#__PURE__*/function (_Component) {\n  _inheritsLoose(LoadingSpinner, _Component);\n\n  function LoadingSpinner() {\n    return _Component.apply(this, arguments) || this;\n  }\n\n  var _proto = LoadingSpinner.prototype;\n\n  /**\n   * Create the `LoadingSpinner`s DOM element.\n   *\n   * @return {Element}\n   *         The dom element that gets created.\n   */\n  _proto.createEl = function createEl$1() {\n    var isAudio = this.player_.isAudio();\n    var playerType = this.localize(isAudio ? 'Audio Player' : 'Video Player');\n    var controlText = createEl('span', {\n      className: 'vjs-control-text',\n      textContent: this.localize('{1} is loading.', [playerType])\n    });\n\n    var el = _Component.prototype.createEl.call(this, 'div', {\n      className: 'vjs-loading-spinner',\n      dir: 'ltr'\n    });\n\n    el.appendChild(controlText);\n    return el;\n  };\n\n  return LoadingSpinner;\n}(Component$1);\n\nComponent$1.registerComponent('LoadingSpinner', LoadingSpinner);\n\n/**\n * Base class for all buttons.\n *\n * @extends ClickableComponent\n */\n\nvar Button = /*#__PURE__*/function (_ClickableComponent) {\n  _inheritsLoose(Button, _ClickableComponent);\n\n  function Button() {\n    return _ClickableComponent.apply(this, arguments) || this;\n  }\n\n  var _proto = Button.prototype;\n\n  /**\n   * Create the `Button`s DOM element.\n   *\n   * @param {string} [tag=\"button\"]\n   *        The element's node type. This argument is IGNORED: no matter what\n   *        is passed, it will always create a `button` element.\n   *\n   * @param {Object} [props={}]\n   *        An object of properties that should be set on the element.\n   *\n   * @param {Object} [attributes={}]\n   *        An object of attributes that should be set on the element.\n   *\n   * @return {Element}\n   *         The element that gets created.\n   */\n  _proto.createEl = function createEl$1(tag, props, attributes) {\n    if (props === void 0) {\n      props = {};\n    }\n\n    if (attributes === void 0) {\n      attributes = {};\n    }\n\n    tag = 'button';\n    props = assign({\n      className: this.buildCSSClass()\n    }, props); // Add attributes for button element\n\n    attributes = assign({\n      // Necessary since the default button type is \"submit\"\n      type: 'button'\n    }, attributes);\n\n    var el = createEl(tag, props, attributes);\n\n    el.appendChild(createEl('span', {\n      className: 'vjs-icon-placeholder'\n    }, {\n      'aria-hidden': true\n    }));\n    this.createControlTextEl(el);\n    return el;\n  }\n  /**\n   * Add a child `Component` inside of this `Button`.\n   *\n   * @param {string|Component} child\n   *        The name or instance of a child to add.\n   *\n   * @param {Object} [options={}]\n   *        The key/value store of options that will get passed to children of\n   *        the child.\n   *\n   * @return {Component}\n   *         The `Component` that gets added as a child. When using a string the\n   *         `Component` will get created by this process.\n   *\n   * @deprecated since version 5\n   */\n  ;\n\n  _proto.addChild = function addChild(child, options) {\n    if (options === void 0) {\n      options = {};\n    }\n\n    var className = this.constructor.name;\n    log$1.warn(\"Adding an actionable (user controllable) child to a Button (\" + className + \") is not supported; use a ClickableComponent instead.\"); // Avoid the error message generated by ClickableComponent's addChild method\n\n    return Component$1.prototype.addChild.call(this, child, options);\n  }\n  /**\n   * Enable the `Button` element so that it can be activated or clicked. Use this with\n   * {@link Button#disable}.\n   */\n  ;\n\n  _proto.enable = function enable() {\n    _ClickableComponent.prototype.enable.call(this);\n\n    this.el_.removeAttribute('disabled');\n  }\n  /**\n   * Disable the `Button` element so that it cannot be activated or clicked. Use this with\n   * {@link Button#enable}.\n   */\n  ;\n\n  _proto.disable = function disable() {\n    _ClickableComponent.prototype.disable.call(this);\n\n    this.el_.setAttribute('disabled', 'disabled');\n  }\n  /**\n   * This gets called when a `Button` has focus and `keydown` is triggered via a key\n   * press.\n   *\n   * @param {EventTarget~Event} event\n   *        The event that caused this function to get called.\n   *\n   * @listens keydown\n   */\n  ;\n\n  _proto.handleKeyDown = function handleKeyDown(event) {\n    // Ignore Space or Enter key operation, which is handled by the browser for\n    // a button - though not for its super class, ClickableComponent. Also,\n    // prevent the event from propagating through the DOM and triggering Player\n    // hotkeys. We do not preventDefault here because we _want_ the browser to\n    // handle it.\n    if (keycode.isEventKey(event, 'Space') || keycode.isEventKey(event, 'Enter')) {\n      event.stopPropagation();\n      return;\n    } // Pass keypress handling up for unsupported keys\n\n\n    _ClickableComponent.prototype.handleKeyDown.call(this, event);\n  };\n\n  return Button;\n}(ClickableComponent);\n\nComponent$1.registerComponent('Button', Button);\n\n/**\n * The initial play button that shows before the video has played. The hiding of the\n * `BigPlayButton` get done via CSS and `Player` states.\n *\n * @extends Button\n */\n\nvar BigPlayButton = /*#__PURE__*/function (_Button) {\n  _inheritsLoose(BigPlayButton, _Button);\n\n  function BigPlayButton(player, options) {\n    var _this;\n\n    _this = _Button.call(this, player, options) || this;\n    _this.mouseused_ = false;\n\n    _this.on('mousedown', function (e) {\n      return _this.handleMouseDown(e);\n    });\n\n    return _this;\n  }\n  /**\n   * Builds the default DOM `className`.\n   *\n   * @return {string}\n   *         The DOM `className` for this object. Always returns 'vjs-big-play-button'.\n   */\n\n\n  var _proto = BigPlayButton.prototype;\n\n  _proto.buildCSSClass = function buildCSSClass() {\n    return 'vjs-big-play-button';\n  }\n  /**\n   * This gets called when a `BigPlayButton` \"clicked\". See {@link ClickableComponent}\n   * for more detailed information on what a click can be.\n   *\n   * @param {EventTarget~Event} event\n   *        The `keydown`, `tap`, or `click` event that caused this function to be\n   *        called.\n   *\n   * @listens tap\n   * @listens click\n   */\n  ;\n\n  _proto.handleClick = function handleClick(event) {\n    var playPromise = this.player_.play(); // exit early if clicked via the mouse\n\n    if (this.mouseused_ && event.clientX && event.clientY) {\n      var sourceIsEncrypted = this.player_.usingPlugin('eme') && this.player_.eme.sessions && this.player_.eme.sessions.length > 0;\n      silencePromise(playPromise);\n\n      if (this.player_.tech(true) && // We've observed a bug in IE and Edge when playing back DRM content where\n      // calling .focus() on the video element causes the video to go black,\n      // so we avoid it in that specific case\n      !((IE_VERSION || IS_EDGE) && sourceIsEncrypted)) {\n        this.player_.tech(true).focus();\n      }\n\n      return;\n    }\n\n    var cb = this.player_.getChild('controlBar');\n    var playToggle = cb && cb.getChild('playToggle');\n\n    if (!playToggle) {\n      this.player_.tech(true).focus();\n      return;\n    }\n\n    var playFocus = function playFocus() {\n      return playToggle.focus();\n    };\n\n    if (isPromise(playPromise)) {\n      playPromise.then(playFocus, function () {});\n    } else {\n      this.setTimeout(playFocus, 1);\n    }\n  };\n\n  _proto.handleKeyDown = function handleKeyDown(event) {\n    this.mouseused_ = false;\n\n    _Button.prototype.handleKeyDown.call(this, event);\n  };\n\n  _proto.handleMouseDown = function handleMouseDown(event) {\n    this.mouseused_ = true;\n  };\n\n  return BigPlayButton;\n}(Button);\n/**\n * The text that should display over the `BigPlayButton`s controls. Added to for localization.\n *\n * @type {string}\n * @private\n */\n\n\nBigPlayButton.prototype.controlText_ = 'Play Video';\nComponent$1.registerComponent('BigPlayButton', BigPlayButton);\n\n/**\n * The `CloseButton` is a `{@link Button}` that fires a `close` event when\n * it gets clicked.\n *\n * @extends Button\n */\n\nvar CloseButton = /*#__PURE__*/function (_Button) {\n  _inheritsLoose(CloseButton, _Button);\n\n  /**\n  * Creates an instance of the this class.\n  *\n  * @param  {Player} player\n  *         The `Player` that this class should be attached to.\n  *\n  * @param  {Object} [options]\n  *         The key/value store of player options.\n  */\n  function CloseButton(player, options) {\n    var _this;\n\n    _this = _Button.call(this, player, options) || this;\n\n    _this.controlText(options && options.controlText || _this.localize('Close'));\n\n    return _this;\n  }\n  /**\n  * Builds the default DOM `className`.\n  *\n  * @return {string}\n  *         The DOM `className` for this object.\n  */\n\n\n  var _proto = CloseButton.prototype;\n\n  _proto.buildCSSClass = function buildCSSClass() {\n    return \"vjs-close-button \" + _Button.prototype.buildCSSClass.call(this);\n  }\n  /**\n   * This gets called when a `CloseButton` gets clicked. See\n   * {@link ClickableComponent#handleClick} for more information on when\n   * this will be triggered\n   *\n   * @param {EventTarget~Event} event\n   *        The `keydown`, `tap`, or `click` event that caused this function to be\n   *        called.\n   *\n   * @listens tap\n   * @listens click\n   * @fires CloseButton#close\n   */\n  ;\n\n  _proto.handleClick = function handleClick(event) {\n    /**\n     * Triggered when the a `CloseButton` is clicked.\n     *\n     * @event CloseButton#close\n     * @type {EventTarget~Event}\n     *\n     * @property {boolean} [bubbles=false]\n     *           set to false so that the close event does not\n     *           bubble up to parents if there is no listener\n     */\n    this.trigger({\n      type: 'close',\n      bubbles: false\n    });\n  }\n  /**\n   * Event handler that is called when a `CloseButton` receives a\n   * `keydown` event.\n   *\n   * By default, if the key is Esc, it will trigger a `click` event.\n   *\n   * @param {EventTarget~Event} event\n   *        The `keydown` event that caused this function to be called.\n   *\n   * @listens keydown\n   */\n  ;\n\n  _proto.handleKeyDown = function handleKeyDown(event) {\n    // Esc button will trigger `click` event\n    if (keycode.isEventKey(event, 'Esc')) {\n      event.preventDefault();\n      event.stopPropagation();\n      this.trigger('click');\n    } else {\n      // Pass keypress handling up for unsupported keys\n      _Button.prototype.handleKeyDown.call(this, event);\n    }\n  };\n\n  return CloseButton;\n}(Button);\n\nComponent$1.registerComponent('CloseButton', CloseButton);\n\n/**\n * Button to toggle between play and pause.\n *\n * @extends Button\n */\n\nvar PlayToggle = /*#__PURE__*/function (_Button) {\n  _inheritsLoose(PlayToggle, _Button);\n\n  /**\n   * Creates an instance of this class.\n   *\n   * @param {Player} player\n   *        The `Player` that this class should be attached to.\n   *\n   * @param {Object} [options={}]\n   *        The key/value store of player options.\n   */\n  function PlayToggle(player, options) {\n    var _this;\n\n    if (options === void 0) {\n      options = {};\n    }\n\n    _this = _Button.call(this, player, options) || this; // show or hide replay icon\n\n    options.replay = options.replay === undefined || options.replay;\n\n    _this.on(player, 'play', function (e) {\n      return _this.handlePlay(e);\n    });\n\n    _this.on(player, 'pause', function (e) {\n      return _this.handlePause(e);\n    });\n\n    if (options.replay) {\n      _this.on(player, 'ended', function (e) {\n        return _this.handleEnded(e);\n      });\n    }\n\n    return _this;\n  }\n  /**\n   * Builds the default DOM `className`.\n   *\n   * @return {string}\n   *         The DOM `className` for this object.\n   */\n\n\n  var _proto = PlayToggle.prototype;\n\n  _proto.buildCSSClass = function buildCSSClass() {\n    return \"vjs-play-control \" + _Button.prototype.buildCSSClass.call(this);\n  }\n  /**\n   * This gets called when an `PlayToggle` is \"clicked\". See\n   * {@link ClickableComponent} for more detailed information on what a click can be.\n   *\n   * @param {EventTarget~Event} [event]\n   *        The `keydown`, `tap`, or `click` event that caused this function to be\n   *        called.\n   *\n   * @listens tap\n   * @listens click\n   */\n  ;\n\n  _proto.handleClick = function handleClick(event) {\n    if (this.player_.paused()) {\n      silencePromise(this.player_.play());\n    } else {\n      this.player_.pause();\n    }\n  }\n  /**\n   * This gets called once after the video has ended and the user seeks so that\n   * we can change the replay button back to a play button.\n   *\n   * @param {EventTarget~Event} [event]\n   *        The event that caused this function to run.\n   *\n   * @listens Player#seeked\n   */\n  ;\n\n  _proto.handleSeeked = function handleSeeked(event) {\n    this.removeClass('vjs-ended');\n\n    if (this.player_.paused()) {\n      this.handlePause(event);\n    } else {\n      this.handlePlay(event);\n    }\n  }\n  /**\n   * Add the vjs-playing class to the element so it can change appearance.\n   *\n   * @param {EventTarget~Event} [event]\n   *        The event that caused this function to run.\n   *\n   * @listens Player#play\n   */\n  ;\n\n  _proto.handlePlay = function handlePlay(event) {\n    this.removeClass('vjs-ended');\n    this.removeClass('vjs-paused');\n    this.addClass('vjs-playing'); // change the button text to \"Pause\"\n\n    this.controlText('Pause');\n  }\n  /**\n   * Add the vjs-paused class to the element so it can change appearance.\n   *\n   * @param {EventTarget~Event} [event]\n   *        The event that caused this function to run.\n   *\n   * @listens Player#pause\n   */\n  ;\n\n  _proto.handlePause = function handlePause(event) {\n    this.removeClass('vjs-playing');\n    this.addClass('vjs-paused'); // change the button text to \"Play\"\n\n    this.controlText('Play');\n  }\n  /**\n   * Add the vjs-ended class to the element so it can change appearance\n   *\n   * @param {EventTarget~Event} [event]\n   *        The event that caused this function to run.\n   *\n   * @listens Player#ended\n   */\n  ;\n\n  _proto.handleEnded = function handleEnded(event) {\n    var _this2 = this;\n\n    this.removeClass('vjs-playing');\n    this.addClass('vjs-ended'); // change the button text to \"Replay\"\n\n    this.controlText('Replay'); // on the next seek remove the replay button\n\n    this.one(this.player_, 'seeked', function (e) {\n      return _this2.handleSeeked(e);\n    });\n  };\n\n  return PlayToggle;\n}(Button);\n/**\n * The text that should display over the `PlayToggle`s controls. Added for localization.\n *\n * @type {string}\n * @private\n */\n\n\nPlayToggle.prototype.controlText_ = 'Play';\nComponent$1.registerComponent('PlayToggle', PlayToggle);\n\n/**\n * @file format-time.js\n * @module format-time\n */\n\n/**\n * Format seconds as a time string, H:MM:SS or M:SS. Supplying a guide (in\n * seconds) will force a number of leading zeros to cover the length of the\n * guide.\n *\n * @private\n * @param  {number} seconds\n *         Number of seconds to be turned into a string\n *\n * @param  {number} guide\n *         Number (in seconds) to model the string after\n *\n * @return {string}\n *         Time formatted as H:MM:SS or M:SS\n */\nvar defaultImplementation = function defaultImplementation(seconds, guide) {\n  seconds = seconds < 0 ? 0 : seconds;\n  var s = Math.floor(seconds % 60);\n  var m = Math.floor(seconds / 60 % 60);\n  var h = Math.floor(seconds / 3600);\n  var gm = Math.floor(guide / 60 % 60);\n  var gh = Math.floor(guide / 3600); // handle invalid times\n\n  if (isNaN(seconds) || seconds === Infinity) {\n    // '-' is false for all relational operators (e.g. <, >=) so this setting\n    // will add the minimum number of fields specified by the guide\n    h = m = s = '-';\n  } // Check if we need to show hours\n\n\n  h = h > 0 || gh > 0 ? h + ':' : ''; // If hours are showing, we may need to add a leading zero.\n  // Always show at least one digit of minutes.\n\n  m = ((h || gm >= 10) && m < 10 ? '0' + m : m) + ':'; // Check if leading zero is need for seconds\n\n  s = s < 10 ? '0' + s : s;\n  return h + m + s;\n}; // Internal pointer to the current implementation.\n\n\nvar implementation = defaultImplementation;\n/**\n * Replaces the default formatTime implementation with a custom implementation.\n *\n * @param {Function} customImplementation\n *        A function which will be used in place of the default formatTime\n *        implementation. Will receive the current time in seconds and the\n *        guide (in seconds) as arguments.\n */\n\nfunction setFormatTime(customImplementation) {\n  implementation = customImplementation;\n}\n/**\n * Resets formatTime to the default implementation.\n */\n\nfunction resetFormatTime() {\n  implementation = defaultImplementation;\n}\n/**\n * Delegates to either the default time formatting function or a custom\n * function supplied via `setFormatTime`.\n *\n * Formats seconds as a time string (H:MM:SS or M:SS). Supplying a\n * guide (in seconds) will force a number of leading zeros to cover the\n * length of the guide.\n *\n * @static\n * @example  formatTime(125, 600) === \"02:05\"\n * @param    {number} seconds\n *           Number of seconds to be turned into a string\n *\n * @param    {number} guide\n *           Number (in seconds) to model the string after\n *\n * @return   {string}\n *           Time formatted as H:MM:SS or M:SS\n */\n\nfunction formatTime(seconds, guide) {\n  if (guide === void 0) {\n    guide = seconds;\n  }\n\n  return implementation(seconds, guide);\n}\n\n/**\n * Displays time information about the video\n *\n * @extends Component\n */\n\nvar TimeDisplay = /*#__PURE__*/function (_Component) {\n  _inheritsLoose(TimeDisplay, _Component);\n\n  /**\n   * Creates an instance of this class.\n   *\n   * @param {Player} player\n   *        The `Player` that this class should be attached to.\n   *\n   * @param {Object} [options]\n   *        The key/value store of player options.\n   */\n  function TimeDisplay(player, options) {\n    var _this;\n\n    _this = _Component.call(this, player, options) || this;\n\n    _this.on(player, ['timeupdate', 'ended'], function (e) {\n      return _this.updateContent(e);\n    });\n\n    _this.updateTextNode_();\n\n    return _this;\n  }\n  /**\n   * Create the `Component`'s DOM element\n   *\n   * @return {Element}\n   *         The element that was created.\n   */\n\n\n  var _proto = TimeDisplay.prototype;\n\n  _proto.createEl = function createEl$1() {\n    var className = this.buildCSSClass();\n\n    var el = _Component.prototype.createEl.call(this, 'div', {\n      className: className + \" vjs-time-control vjs-control\"\n    });\n\n    var span = createEl('span', {\n      className: 'vjs-control-text',\n      textContent: this.localize(this.labelText_) + \"\\xA0\"\n    }, {\n      role: 'presentation'\n    });\n    el.appendChild(span);\n    this.contentEl_ = createEl('span', {\n      className: className + \"-display\"\n    }, {\n      // tell screen readers not to automatically read the time as it changes\n      'aria-live': 'off',\n      // span elements have no implicit role, but some screen readers (notably VoiceOver)\n      // treat them as a break between items in the DOM when using arrow keys\n      // (or left-to-right swipes on iOS) to read contents of a page. Using\n      // role='presentation' causes VoiceOver to NOT treat this span as a break.\n      'role': 'presentation'\n    });\n    el.appendChild(this.contentEl_);\n    return el;\n  };\n\n  _proto.dispose = function dispose() {\n    this.contentEl_ = null;\n    this.textNode_ = null;\n\n    _Component.prototype.dispose.call(this);\n  }\n  /**\n   * Updates the time display text node with a new time\n   *\n   * @param {number} [time=0] the time to update to\n   *\n   * @private\n   */\n  ;\n\n  _proto.updateTextNode_ = function updateTextNode_(time) {\n    var _this2 = this;\n\n    if (time === void 0) {\n      time = 0;\n    }\n\n    time = formatTime(time);\n\n    if (this.formattedTime_ === time) {\n      return;\n    }\n\n    this.formattedTime_ = time;\n    this.requestNamedAnimationFrame('TimeDisplay#updateTextNode_', function () {\n      if (!_this2.contentEl_) {\n        return;\n      }\n\n      var oldNode = _this2.textNode_;\n\n      if (oldNode && _this2.contentEl_.firstChild !== oldNode) {\n        oldNode = null;\n        log$1.warn('TimeDisplay#updateTextnode_: Prevented replacement of text node element since it was no longer a child of this node. Appending a new node instead.');\n      }\n\n      _this2.textNode_ = document.createTextNode(_this2.formattedTime_);\n\n      if (!_this2.textNode_) {\n        return;\n      }\n\n      if (oldNode) {\n        _this2.contentEl_.replaceChild(_this2.textNode_, oldNode);\n      } else {\n        _this2.contentEl_.appendChild(_this2.textNode_);\n      }\n    });\n  }\n  /**\n   * To be filled out in the child class, should update the displayed time\n   * in accordance with the fact that the current time has changed.\n   *\n   * @param {EventTarget~Event} [event]\n   *        The `timeupdate`  event that caused this to run.\n   *\n   * @listens Player#timeupdate\n   */\n  ;\n\n  _proto.updateContent = function updateContent(event) {};\n\n  return TimeDisplay;\n}(Component$1);\n/**\n * The text that is added to the `TimeDisplay` for screen reader users.\n *\n * @type {string}\n * @private\n */\n\n\nTimeDisplay.prototype.labelText_ = 'Time';\n/**\n * The text that should display over the `TimeDisplay`s controls. Added to for localization.\n *\n * @type {string}\n * @private\n *\n * @deprecated in v7; controlText_ is not used in non-active display Components\n */\n\nTimeDisplay.prototype.controlText_ = 'Time';\nComponent$1.registerComponent('TimeDisplay', TimeDisplay);\n\n/**\n * Displays the current time\n *\n * @extends Component\n */\n\nvar CurrentTimeDisplay = /*#__PURE__*/function (_TimeDisplay) {\n  _inheritsLoose(CurrentTimeDisplay, _TimeDisplay);\n\n  function CurrentTimeDisplay() {\n    return _TimeDisplay.apply(this, arguments) || this;\n  }\n\n  var _proto = CurrentTimeDisplay.prototype;\n\n  /**\n   * Builds the default DOM `className`.\n   *\n   * @return {string}\n   *         The DOM `className` for this object.\n   */\n  _proto.buildCSSClass = function buildCSSClass() {\n    return 'vjs-current-time';\n  }\n  /**\n   * Update current time display\n   *\n   * @param {EventTarget~Event} [event]\n   *        The `timeupdate` event that caused this function to run.\n   *\n   * @listens Player#timeupdate\n   */\n  ;\n\n  _proto.updateContent = function updateContent(event) {\n    // Allows for smooth scrubbing, when player can't keep up.\n    var time;\n\n    if (this.player_.ended()) {\n      time = this.player_.duration();\n    } else {\n      time = this.player_.scrubbing() ? this.player_.getCache().currentTime : this.player_.currentTime();\n    }\n\n    this.updateTextNode_(time);\n  };\n\n  return CurrentTimeDisplay;\n}(TimeDisplay);\n/**\n * The text that is added to the `CurrentTimeDisplay` for screen reader users.\n *\n * @type {string}\n * @private\n */\n\n\nCurrentTimeDisplay.prototype.labelText_ = 'Current Time';\n/**\n * The text that should display over the `CurrentTimeDisplay`s controls. Added to for localization.\n *\n * @type {string}\n * @private\n *\n * @deprecated in v7; controlText_ is not used in non-active display Components\n */\n\nCurrentTimeDisplay.prototype.controlText_ = 'Current Time';\nComponent$1.registerComponent('CurrentTimeDisplay', CurrentTimeDisplay);\n\n/**\n * Displays the duration\n *\n * @extends Component\n */\n\nvar DurationDisplay = /*#__PURE__*/function (_TimeDisplay) {\n  _inheritsLoose(DurationDisplay, _TimeDisplay);\n\n  /**\n   * Creates an instance of this class.\n   *\n   * @param {Player} player\n   *        The `Player` that this class should be attached to.\n   *\n   * @param {Object} [options]\n   *        The key/value store of player options.\n   */\n  function DurationDisplay(player, options) {\n    var _this;\n\n    _this = _TimeDisplay.call(this, player, options) || this;\n\n    var updateContent = function updateContent(e) {\n      return _this.updateContent(e);\n    }; // we do not want to/need to throttle duration changes,\n    // as they should always display the changed duration as\n    // it has changed\n\n\n    _this.on(player, 'durationchange', updateContent); // Listen to loadstart because the player duration is reset when a new media element is loaded,\n    // but the durationchange on the user agent will not fire.\n    // @see [Spec]{@link https://www.w3.org/TR/2011/WD-html5-20110113/video.html#media-element-load-algorithm}\n\n\n    _this.on(player, 'loadstart', updateContent); // Also listen for timeupdate (in the parent) and loadedmetadata because removing those\n    // listeners could have broken dependent applications/libraries. These\n    // can likely be removed for 7.0.\n\n\n    _this.on(player, 'loadedmetadata', updateContent);\n\n    return _this;\n  }\n  /**\n   * Builds the default DOM `className`.\n   *\n   * @return {string}\n   *         The DOM `className` for this object.\n   */\n\n\n  var _proto = DurationDisplay.prototype;\n\n  _proto.buildCSSClass = function buildCSSClass() {\n    return 'vjs-duration';\n  }\n  /**\n   * Update duration time display.\n   *\n   * @param {EventTarget~Event} [event]\n   *        The `durationchange`, `timeupdate`, or `loadedmetadata` event that caused\n   *        this function to be called.\n   *\n   * @listens Player#durationchange\n   * @listens Player#timeupdate\n   * @listens Player#loadedmetadata\n   */\n  ;\n\n  _proto.updateContent = function updateContent(event) {\n    var duration = this.player_.duration();\n    this.updateTextNode_(duration);\n  };\n\n  return DurationDisplay;\n}(TimeDisplay);\n/**\n * The text that is added to the `DurationDisplay` for screen reader users.\n *\n * @type {string}\n * @private\n */\n\n\nDurationDisplay.prototype.labelText_ = 'Duration';\n/**\n * The text that should display over the `DurationDisplay`s controls. Added to for localization.\n *\n * @type {string}\n * @private\n *\n * @deprecated in v7; controlText_ is not used in non-active display Components\n */\n\nDurationDisplay.prototype.controlText_ = 'Duration';\nComponent$1.registerComponent('DurationDisplay', DurationDisplay);\n\n/**\n * The separator between the current time and duration.\n * Can be hidden if it's not needed in the design.\n *\n * @extends Component\n */\n\nvar TimeDivider = /*#__PURE__*/function (_Component) {\n  _inheritsLoose(TimeDivider, _Component);\n\n  function TimeDivider() {\n    return _Component.apply(this, arguments) || this;\n  }\n\n  var _proto = TimeDivider.prototype;\n\n  /**\n   * Create the component's DOM element\n   *\n   * @return {Element}\n   *         The element that was created.\n   */\n  _proto.createEl = function createEl() {\n    var el = _Component.prototype.createEl.call(this, 'div', {\n      className: 'vjs-time-control vjs-time-divider'\n    }, {\n      // this element and its contents can be hidden from assistive techs since\n      // it is made extraneous by the announcement of the control text\n      // for the current time and duration displays\n      'aria-hidden': true\n    });\n\n    var div = _Component.prototype.createEl.call(this, 'div');\n\n    var span = _Component.prototype.createEl.call(this, 'span', {\n      textContent: '/'\n    });\n\n    div.appendChild(span);\n    el.appendChild(div);\n    return el;\n  };\n\n  return TimeDivider;\n}(Component$1);\n\nComponent$1.registerComponent('TimeDivider', TimeDivider);\n\n/**\n * Displays the time left in the video\n *\n * @extends Component\n */\n\nvar RemainingTimeDisplay = /*#__PURE__*/function (_TimeDisplay) {\n  _inheritsLoose(RemainingTimeDisplay, _TimeDisplay);\n\n  /**\n   * Creates an instance of this class.\n   *\n   * @param {Player} player\n   *        The `Player` that this class should be attached to.\n   *\n   * @param {Object} [options]\n   *        The key/value store of player options.\n   */\n  function RemainingTimeDisplay(player, options) {\n    var _this;\n\n    _this = _TimeDisplay.call(this, player, options) || this;\n\n    _this.on(player, 'durationchange', function (e) {\n      return _this.updateContent(e);\n    });\n\n    return _this;\n  }\n  /**\n   * Builds the default DOM `className`.\n   *\n   * @return {string}\n   *         The DOM `className` for this object.\n   */\n\n\n  var _proto = RemainingTimeDisplay.prototype;\n\n  _proto.buildCSSClass = function buildCSSClass() {\n    return 'vjs-remaining-time';\n  }\n  /**\n   * Create the `Component`'s DOM element with the \"minus\" characted prepend to the time\n   *\n   * @return {Element}\n   *         The element that was created.\n   */\n  ;\n\n  _proto.createEl = function createEl$1() {\n    var el = _TimeDisplay.prototype.createEl.call(this);\n\n    el.insertBefore(createEl('span', {}, {\n      'aria-hidden': true\n    }, '-'), this.contentEl_);\n    return el;\n  }\n  /**\n   * Update remaining time display.\n   *\n   * @param {EventTarget~Event} [event]\n   *        The `timeupdate` or `durationchange` event that caused this to run.\n   *\n   * @listens Player#timeupdate\n   * @listens Player#durationchange\n   */\n  ;\n\n  _proto.updateContent = function updateContent(event) {\n    if (typeof this.player_.duration() !== 'number') {\n      return;\n    }\n\n    var time; // @deprecated We should only use remainingTimeDisplay\n    // as of video.js 7\n\n    if (this.player_.ended()) {\n      time = 0;\n    } else if (this.player_.remainingTimeDisplay) {\n      time = this.player_.remainingTimeDisplay();\n    } else {\n      time = this.player_.remainingTime();\n    }\n\n    this.updateTextNode_(time);\n  };\n\n  return RemainingTimeDisplay;\n}(TimeDisplay);\n/**\n * The text that is added to the `RemainingTimeDisplay` for screen reader users.\n *\n * @type {string}\n * @private\n */\n\n\nRemainingTimeDisplay.prototype.labelText_ = 'Remaining Time';\n/**\n * The text that should display over the `RemainingTimeDisplay`s controls. Added to for localization.\n *\n * @type {string}\n * @private\n *\n * @deprecated in v7; controlText_ is not used in non-active display Components\n */\n\nRemainingTimeDisplay.prototype.controlText_ = 'Remaining Time';\nComponent$1.registerComponent('RemainingTimeDisplay', RemainingTimeDisplay);\n\n/**\n * Displays the live indicator when duration is Infinity.\n *\n * @extends Component\n */\n\nvar LiveDisplay = /*#__PURE__*/function (_Component) {\n  _inheritsLoose(LiveDisplay, _Component);\n\n  /**\n   * Creates an instance of this class.\n   *\n   * @param {Player} player\n   *        The `Player` that this class should be attached to.\n   *\n   * @param {Object} [options]\n   *        The key/value store of player options.\n   */\n  function LiveDisplay(player, options) {\n    var _this;\n\n    _this = _Component.call(this, player, options) || this;\n\n    _this.updateShowing();\n\n    _this.on(_this.player(), 'durationchange', function (e) {\n      return _this.updateShowing(e);\n    });\n\n    return _this;\n  }\n  /**\n   * Create the `Component`'s DOM element\n   *\n   * @return {Element}\n   *         The element that was created.\n   */\n\n\n  var _proto = LiveDisplay.prototype;\n\n  _proto.createEl = function createEl$1() {\n    var el = _Component.prototype.createEl.call(this, 'div', {\n      className: 'vjs-live-control vjs-control'\n    });\n\n    this.contentEl_ = createEl('div', {\n      className: 'vjs-live-display'\n    }, {\n      'aria-live': 'off'\n    });\n    this.contentEl_.appendChild(createEl('span', {\n      className: 'vjs-control-text',\n      textContent: this.localize('Stream Type') + \"\\xA0\"\n    }));\n    this.contentEl_.appendChild(document.createTextNode(this.localize('LIVE')));\n    el.appendChild(this.contentEl_);\n    return el;\n  };\n\n  _proto.dispose = function dispose() {\n    this.contentEl_ = null;\n\n    _Component.prototype.dispose.call(this);\n  }\n  /**\n   * Check the duration to see if the LiveDisplay should be showing or not. Then show/hide\n   * it accordingly\n   *\n   * @param {EventTarget~Event} [event]\n   *        The {@link Player#durationchange} event that caused this function to run.\n   *\n   * @listens Player#durationchange\n   */\n  ;\n\n  _proto.updateShowing = function updateShowing(event) {\n    if (this.player().duration() === Infinity) {\n      this.show();\n    } else {\n      this.hide();\n    }\n  };\n\n  return LiveDisplay;\n}(Component$1);\n\nComponent$1.registerComponent('LiveDisplay', LiveDisplay);\n\n/**\n * Displays the live indicator when duration is Infinity.\n *\n * @extends Component\n */\n\nvar SeekToLive = /*#__PURE__*/function (_Button) {\n  _inheritsLoose(SeekToLive, _Button);\n\n  /**\n   * Creates an instance of this class.\n   *\n   * @param {Player} player\n   *        The `Player` that this class should be attached to.\n   *\n   * @param {Object} [options]\n   *        The key/value store of player options.\n   */\n  function SeekToLive(player, options) {\n    var _this;\n\n    _this = _Button.call(this, player, options) || this;\n\n    _this.updateLiveEdgeStatus();\n\n    if (_this.player_.liveTracker) {\n      _this.updateLiveEdgeStatusHandler_ = function (e) {\n        return _this.updateLiveEdgeStatus(e);\n      };\n\n      _this.on(_this.player_.liveTracker, 'liveedgechange', _this.updateLiveEdgeStatusHandler_);\n    }\n\n    return _this;\n  }\n  /**\n   * Create the `Component`'s DOM element\n   *\n   * @return {Element}\n   *         The element that was created.\n   */\n\n\n  var _proto = SeekToLive.prototype;\n\n  _proto.createEl = function createEl$1() {\n    var el = _Button.prototype.createEl.call(this, 'button', {\n      className: 'vjs-seek-to-live-control vjs-control'\n    });\n\n    this.textEl_ = createEl('span', {\n      className: 'vjs-seek-to-live-text',\n      textContent: this.localize('LIVE')\n    }, {\n      'aria-hidden': 'true'\n    });\n    el.appendChild(this.textEl_);\n    return el;\n  }\n  /**\n   * Update the state of this button if we are at the live edge\n   * or not\n   */\n  ;\n\n  _proto.updateLiveEdgeStatus = function updateLiveEdgeStatus() {\n    // default to live edge\n    if (!this.player_.liveTracker || this.player_.liveTracker.atLiveEdge()) {\n      this.setAttribute('aria-disabled', true);\n      this.addClass('vjs-at-live-edge');\n      this.controlText('Seek to live, currently playing live');\n    } else {\n      this.setAttribute('aria-disabled', false);\n      this.removeClass('vjs-at-live-edge');\n      this.controlText('Seek to live, currently behind live');\n    }\n  }\n  /**\n   * On click bring us as near to the live point as possible.\n   * This requires that we wait for the next `live-seekable-change`\n   * event which will happen every segment length seconds.\n   */\n  ;\n\n  _proto.handleClick = function handleClick() {\n    this.player_.liveTracker.seekToLiveEdge();\n  }\n  /**\n   * Dispose of the element and stop tracking\n   */\n  ;\n\n  _proto.dispose = function dispose() {\n    if (this.player_.liveTracker) {\n      this.off(this.player_.liveTracker, 'liveedgechange', this.updateLiveEdgeStatusHandler_);\n    }\n\n    this.textEl_ = null;\n\n    _Button.prototype.dispose.call(this);\n  };\n\n  return SeekToLive;\n}(Button);\n\nSeekToLive.prototype.controlText_ = 'Seek to live, currently playing live';\nComponent$1.registerComponent('SeekToLive', SeekToLive);\n\n/**\n * Keep a number between a min and a max value\n *\n * @param {number} number\n *        The number to clamp\n *\n * @param {number} min\n *        The minimum value\n * @param {number} max\n *        The maximum value\n *\n * @return {number}\n *         the clamped number\n */\nvar clamp = function clamp(number, min, max) {\n  number = Number(number);\n  return Math.min(max, Math.max(min, isNaN(number) ? min : number));\n};\n\n/**\n * The base functionality for a slider. Can be vertical or horizontal.\n * For instance the volume bar or the seek bar on a video is a slider.\n *\n * @extends Component\n */\n\nvar Slider = /*#__PURE__*/function (_Component) {\n  _inheritsLoose(Slider, _Component);\n\n  /**\n  * Create an instance of this class\n  *\n  * @param {Player} player\n  *        The `Player` that this class should be attached to.\n  *\n  * @param {Object} [options]\n  *        The key/value store of player options.\n  */\n  function Slider(player, options) {\n    var _this;\n\n    _this = _Component.call(this, player, options) || this;\n\n    _this.handleMouseDown_ = function (e) {\n      return _this.handleMouseDown(e);\n    };\n\n    _this.handleMouseUp_ = function (e) {\n      return _this.handleMouseUp(e);\n    };\n\n    _this.handleKeyDown_ = function (e) {\n      return _this.handleKeyDown(e);\n    };\n\n    _this.handleClick_ = function (e) {\n      return _this.handleClick(e);\n    };\n\n    _this.handleMouseMove_ = function (e) {\n      return _this.handleMouseMove(e);\n    };\n\n    _this.update_ = function (e) {\n      return _this.update(e);\n    }; // Set property names to bar to match with the child Slider class is looking for\n\n\n    _this.bar = _this.getChild(_this.options_.barName); // Set a horizontal or vertical class on the slider depending on the slider type\n\n    _this.vertical(!!_this.options_.vertical);\n\n    _this.enable();\n\n    return _this;\n  }\n  /**\n   * Are controls are currently enabled for this slider or not.\n   *\n   * @return {boolean}\n   *         true if controls are enabled, false otherwise\n   */\n\n\n  var _proto = Slider.prototype;\n\n  _proto.enabled = function enabled() {\n    return this.enabled_;\n  }\n  /**\n   * Enable controls for this slider if they are disabled\n   */\n  ;\n\n  _proto.enable = function enable() {\n    if (this.enabled()) {\n      return;\n    }\n\n    this.on('mousedown', this.handleMouseDown_);\n    this.on('touchstart', this.handleMouseDown_);\n    this.on('keydown', this.handleKeyDown_);\n    this.on('click', this.handleClick_); // TODO: deprecated, controlsvisible does not seem to be fired\n\n    this.on(this.player_, 'controlsvisible', this.update);\n\n    if (this.playerEvent) {\n      this.on(this.player_, this.playerEvent, this.update);\n    }\n\n    this.removeClass('disabled');\n    this.setAttribute('tabindex', 0);\n    this.enabled_ = true;\n  }\n  /**\n   * Disable controls for this slider if they are enabled\n   */\n  ;\n\n  _proto.disable = function disable() {\n    if (!this.enabled()) {\n      return;\n    }\n\n    var doc = this.bar.el_.ownerDocument;\n    this.off('mousedown', this.handleMouseDown_);\n    this.off('touchstart', this.handleMouseDown_);\n    this.off('keydown', this.handleKeyDown_);\n    this.off('click', this.handleClick_);\n    this.off(this.player_, 'controlsvisible', this.update_);\n    this.off(doc, 'mousemove', this.handleMouseMove_);\n    this.off(doc, 'mouseup', this.handleMouseUp_);\n    this.off(doc, 'touchmove', this.handleMouseMove_);\n    this.off(doc, 'touchend', this.handleMouseUp_);\n    this.removeAttribute('tabindex');\n    this.addClass('disabled');\n\n    if (this.playerEvent) {\n      this.off(this.player_, this.playerEvent, this.update);\n    }\n\n    this.enabled_ = false;\n  }\n  /**\n   * Create the `Slider`s DOM element.\n   *\n   * @param {string} type\n   *        Type of element to create.\n   *\n   * @param {Object} [props={}]\n   *        List of properties in Object form.\n   *\n   * @param {Object} [attributes={}]\n   *        list of attributes in Object form.\n   *\n   * @return {Element}\n   *         The element that gets created.\n   */\n  ;\n\n  _proto.createEl = function createEl(type, props, attributes) {\n    if (props === void 0) {\n      props = {};\n    }\n\n    if (attributes === void 0) {\n      attributes = {};\n    }\n\n    // Add the slider element class to all sub classes\n    props.className = props.className + ' vjs-slider';\n    props = assign({\n      tabIndex: 0\n    }, props);\n    attributes = assign({\n      'role': 'slider',\n      'aria-valuenow': 0,\n      'aria-valuemin': 0,\n      'aria-valuemax': 100,\n      'tabIndex': 0\n    }, attributes);\n    return _Component.prototype.createEl.call(this, type, props, attributes);\n  }\n  /**\n   * Handle `mousedown` or `touchstart` events on the `Slider`.\n   *\n   * @param {EventTarget~Event} event\n   *        `mousedown` or `touchstart` event that triggered this function\n   *\n   * @listens mousedown\n   * @listens touchstart\n   * @fires Slider#slideractive\n   */\n  ;\n\n  _proto.handleMouseDown = function handleMouseDown(event) {\n    var doc = this.bar.el_.ownerDocument;\n\n    if (event.type === 'mousedown') {\n      event.preventDefault();\n    } // Do not call preventDefault() on touchstart in Chrome\n    // to avoid console warnings. Use a 'touch-action: none' style\n    // instead to prevent unintented scrolling.\n    // https://developers.google.com/web/updates/2017/01/scrolling-intervention\n\n\n    if (event.type === 'touchstart' && !IS_CHROME) {\n      event.preventDefault();\n    }\n\n    blockTextSelection();\n    this.addClass('vjs-sliding');\n    /**\n     * Triggered when the slider is in an active state\n     *\n     * @event Slider#slideractive\n     * @type {EventTarget~Event}\n     */\n\n    this.trigger('slideractive');\n    this.on(doc, 'mousemove', this.handleMouseMove_);\n    this.on(doc, 'mouseup', this.handleMouseUp_);\n    this.on(doc, 'touchmove', this.handleMouseMove_);\n    this.on(doc, 'touchend', this.handleMouseUp_);\n    this.handleMouseMove(event);\n  }\n  /**\n   * Handle the `mousemove`, `touchmove`, and `mousedown` events on this `Slider`.\n   * The `mousemove` and `touchmove` events will only only trigger this function during\n   * `mousedown` and `touchstart`. This is due to {@link Slider#handleMouseDown} and\n   * {@link Slider#handleMouseUp}.\n   *\n   * @param {EventTarget~Event} event\n   *        `mousedown`, `mousemove`, `touchstart`, or `touchmove` event that triggered\n   *        this function\n   *\n   * @listens mousemove\n   * @listens touchmove\n   */\n  ;\n\n  _proto.handleMouseMove = function handleMouseMove(event) {}\n  /**\n   * Handle `mouseup` or `touchend` events on the `Slider`.\n   *\n   * @param {EventTarget~Event} event\n   *        `mouseup` or `touchend` event that triggered this function.\n   *\n   * @listens touchend\n   * @listens mouseup\n   * @fires Slider#sliderinactive\n   */\n  ;\n\n  _proto.handleMouseUp = function handleMouseUp() {\n    var doc = this.bar.el_.ownerDocument;\n    unblockTextSelection();\n    this.removeClass('vjs-sliding');\n    /**\n     * Triggered when the slider is no longer in an active state.\n     *\n     * @event Slider#sliderinactive\n     * @type {EventTarget~Event}\n     */\n\n    this.trigger('sliderinactive');\n    this.off(doc, 'mousemove', this.handleMouseMove_);\n    this.off(doc, 'mouseup', this.handleMouseUp_);\n    this.off(doc, 'touchmove', this.handleMouseMove_);\n    this.off(doc, 'touchend', this.handleMouseUp_);\n    this.update();\n  }\n  /**\n   * Update the progress bar of the `Slider`.\n   *\n   * @return {number}\n   *          The percentage of progress the progress bar represents as a\n   *          number from 0 to 1.\n   */\n  ;\n\n  _proto.update = function update() {\n    var _this2 = this;\n\n    // In VolumeBar init we have a setTimeout for update that pops and update\n    // to the end of the execution stack. The player is destroyed before then\n    // update will cause an error\n    // If there's no bar...\n    if (!this.el_ || !this.bar) {\n      return;\n    } // clamp progress between 0 and 1\n    // and only round to four decimal places, as we round to two below\n\n\n    var progress = this.getProgress();\n\n    if (progress === this.progress_) {\n      return progress;\n    }\n\n    this.progress_ = progress;\n    this.requestNamedAnimationFrame('Slider#update', function () {\n      // Set the new bar width or height\n      var sizeKey = _this2.vertical() ? 'height' : 'width'; // Convert to a percentage for css value\n\n      _this2.bar.el().style[sizeKey] = (progress * 100).toFixed(2) + '%';\n    });\n    return progress;\n  }\n  /**\n   * Get the percentage of the bar that should be filled\n   * but clamped and rounded.\n   *\n   * @return {number}\n   *         percentage filled that the slider is\n   */\n  ;\n\n  _proto.getProgress = function getProgress() {\n    return Number(clamp(this.getPercent(), 0, 1).toFixed(4));\n  }\n  /**\n   * Calculate distance for slider\n   *\n   * @param {EventTarget~Event} event\n   *        The event that caused this function to run.\n   *\n   * @return {number}\n   *         The current position of the Slider.\n   *         - position.x for vertical `Slider`s\n   *         - position.y for horizontal `Slider`s\n   */\n  ;\n\n  _proto.calculateDistance = function calculateDistance(event) {\n    var position = getPointerPosition(this.el_, event);\n\n    if (this.vertical()) {\n      return position.y;\n    }\n\n    return position.x;\n  }\n  /**\n   * Handle a `keydown` event on the `Slider`. Watches for left, rigth, up, and down\n   * arrow keys. This function will only be called when the slider has focus. See\n   * {@link Slider#handleFocus} and {@link Slider#handleBlur}.\n   *\n   * @param {EventTarget~Event} event\n   *        the `keydown` event that caused this function to run.\n   *\n   * @listens keydown\n   */\n  ;\n\n  _proto.handleKeyDown = function handleKeyDown(event) {\n    // Left and Down Arrows\n    if (keycode.isEventKey(event, 'Left') || keycode.isEventKey(event, 'Down')) {\n      event.preventDefault();\n      event.stopPropagation();\n      this.stepBack(); // Up and Right Arrows\n    } else if (keycode.isEventKey(event, 'Right') || keycode.isEventKey(event, 'Up')) {\n      event.preventDefault();\n      event.stopPropagation();\n      this.stepForward();\n    } else {\n      // Pass keydown handling up for unsupported keys\n      _Component.prototype.handleKeyDown.call(this, event);\n    }\n  }\n  /**\n   * Listener for click events on slider, used to prevent clicks\n   *   from bubbling up to parent elements like button menus.\n   *\n   * @param {Object} event\n   *        Event that caused this object to run\n   */\n  ;\n\n  _proto.handleClick = function handleClick(event) {\n    event.stopPropagation();\n    event.preventDefault();\n  }\n  /**\n   * Get/set if slider is horizontal for vertical\n   *\n   * @param {boolean} [bool]\n   *        - true if slider is vertical,\n   *        - false is horizontal\n   *\n   * @return {boolean}\n   *         - true if slider is vertical, and getting\n   *         - false if the slider is horizontal, and getting\n   */\n  ;\n\n  _proto.vertical = function vertical(bool) {\n    if (bool === undefined) {\n      return this.vertical_ || false;\n    }\n\n    this.vertical_ = !!bool;\n\n    if (this.vertical_) {\n      this.addClass('vjs-slider-vertical');\n    } else {\n      this.addClass('vjs-slider-horizontal');\n    }\n  };\n\n  return Slider;\n}(Component$1);\n\nComponent$1.registerComponent('Slider', Slider);\n\nvar percentify = function percentify(time, end) {\n  return clamp(time / end * 100, 0, 100).toFixed(2) + '%';\n};\n/**\n * Shows loading progress\n *\n * @extends Component\n */\n\n\nvar LoadProgressBar = /*#__PURE__*/function (_Component) {\n  _inheritsLoose(LoadProgressBar, _Component);\n\n  /**\n   * Creates an instance of this class.\n   *\n   * @param {Player} player\n   *        The `Player` that this class should be attached to.\n   *\n   * @param {Object} [options]\n   *        The key/value store of player options.\n   */\n  function LoadProgressBar(player, options) {\n    var _this;\n\n    _this = _Component.call(this, player, options) || this;\n    _this.partEls_ = [];\n\n    _this.on(player, 'progress', function (e) {\n      return _this.update(e);\n    });\n\n    return _this;\n  }\n  /**\n   * Create the `Component`'s DOM element\n   *\n   * @return {Element}\n   *         The element that was created.\n   */\n\n\n  var _proto = LoadProgressBar.prototype;\n\n  _proto.createEl = function createEl$1() {\n    var el = _Component.prototype.createEl.call(this, 'div', {\n      className: 'vjs-load-progress'\n    });\n\n    var wrapper = createEl('span', {\n      className: 'vjs-control-text'\n    });\n    var loadedText = createEl('span', {\n      textContent: this.localize('Loaded')\n    });\n    var separator = document.createTextNode(': ');\n    this.percentageEl_ = createEl('span', {\n      className: 'vjs-control-text-loaded-percentage',\n      textContent: '0%'\n    });\n    el.appendChild(wrapper);\n    wrapper.appendChild(loadedText);\n    wrapper.appendChild(separator);\n    wrapper.appendChild(this.percentageEl_);\n    return el;\n  };\n\n  _proto.dispose = function dispose() {\n    this.partEls_ = null;\n    this.percentageEl_ = null;\n\n    _Component.prototype.dispose.call(this);\n  }\n  /**\n   * Update progress bar\n   *\n   * @param {EventTarget~Event} [event]\n   *        The `progress` event that caused this function to run.\n   *\n   * @listens Player#progress\n   */\n  ;\n\n  _proto.update = function update(event) {\n    var _this2 = this;\n\n    this.requestNamedAnimationFrame('LoadProgressBar#update', function () {\n      var liveTracker = _this2.player_.liveTracker;\n\n      var buffered = _this2.player_.buffered();\n\n      var duration = liveTracker && liveTracker.isLive() ? liveTracker.seekableEnd() : _this2.player_.duration();\n\n      var bufferedEnd = _this2.player_.bufferedEnd();\n\n      var children = _this2.partEls_;\n      var percent = percentify(bufferedEnd, duration);\n\n      if (_this2.percent_ !== percent) {\n        // update the width of the progress bar\n        _this2.el_.style.width = percent; // update the control-text\n\n        textContent(_this2.percentageEl_, percent);\n        _this2.percent_ = percent;\n      } // add child elements to represent the individual buffered time ranges\n\n\n      for (var i = 0; i < buffered.length; i++) {\n        var start = buffered.start(i);\n        var end = buffered.end(i);\n        var part = children[i];\n\n        if (!part) {\n          part = _this2.el_.appendChild(createEl());\n          children[i] = part;\n        } //  only update if changed\n\n\n        if (part.dataset.start === start && part.dataset.end === end) {\n          continue;\n        }\n\n        part.dataset.start = start;\n        part.dataset.end = end; // set the percent based on the width of the progress bar (bufferedEnd)\n\n        part.style.left = percentify(start, bufferedEnd);\n        part.style.width = percentify(end - start, bufferedEnd);\n      } // remove unused buffered range elements\n\n\n      for (var _i = children.length; _i > buffered.length; _i--) {\n        _this2.el_.removeChild(children[_i - 1]);\n      }\n\n      children.length = buffered.length;\n    });\n  };\n\n  return LoadProgressBar;\n}(Component$1);\n\nComponent$1.registerComponent('LoadProgressBar', LoadProgressBar);\n\n/**\n * Time tooltips display a time above the progress bar.\n *\n * @extends Component\n */\n\nvar TimeTooltip = /*#__PURE__*/function (_Component) {\n  _inheritsLoose(TimeTooltip, _Component);\n\n  /**\n   * Creates an instance of this class.\n   *\n   * @param {Player} player\n   *        The {@link Player} that this class should be attached to.\n   *\n   * @param {Object} [options]\n   *        The key/value store of player options.\n   */\n  function TimeTooltip(player, options) {\n    var _this;\n\n    _this = _Component.call(this, player, options) || this;\n    _this.update = throttle(bind(_assertThisInitialized(_this), _this.update), UPDATE_REFRESH_INTERVAL);\n    return _this;\n  }\n  /**\n   * Create the time tooltip DOM element\n   *\n   * @return {Element}\n   *         The element that was created.\n   */\n\n\n  var _proto = TimeTooltip.prototype;\n\n  _proto.createEl = function createEl() {\n    return _Component.prototype.createEl.call(this, 'div', {\n      className: 'vjs-time-tooltip'\n    }, {\n      'aria-hidden': 'true'\n    });\n  }\n  /**\n   * Updates the position of the time tooltip relative to the `SeekBar`.\n   *\n   * @param {Object} seekBarRect\n   *        The `ClientRect` for the {@link SeekBar} element.\n   *\n   * @param {number} seekBarPoint\n   *        A number from 0 to 1, representing a horizontal reference point\n   *        from the left edge of the {@link SeekBar}\n   */\n  ;\n\n  _proto.update = function update(seekBarRect, seekBarPoint, content) {\n    var tooltipRect = findPosition(this.el_);\n    var playerRect = getBoundingClientRect(this.player_.el());\n    var seekBarPointPx = seekBarRect.width * seekBarPoint; // do nothing if either rect isn't available\n    // for example, if the player isn't in the DOM for testing\n\n    if (!playerRect || !tooltipRect) {\n      return;\n    } // This is the space left of the `seekBarPoint` available within the bounds\n    // of the player. We calculate any gap between the left edge of the player\n    // and the left edge of the `SeekBar` and add the number of pixels in the\n    // `SeekBar` before hitting the `seekBarPoint`\n\n\n    var spaceLeftOfPoint = seekBarRect.left - playerRect.left + seekBarPointPx; // This is the space right of the `seekBarPoint` available within the bounds\n    // of the player. We calculate the number of pixels from the `seekBarPoint`\n    // to the right edge of the `SeekBar` and add to that any gap between the\n    // right edge of the `SeekBar` and the player.\n\n    var spaceRightOfPoint = seekBarRect.width - seekBarPointPx + (playerRect.right - seekBarRect.right); // This is the number of pixels by which the tooltip will need to be pulled\n    // further to the right to center it over the `seekBarPoint`.\n\n    var pullTooltipBy = tooltipRect.width / 2; // Adjust the `pullTooltipBy` distance to the left or right depending on\n    // the results of the space calculations above.\n\n    if (spaceLeftOfPoint < pullTooltipBy) {\n      pullTooltipBy += pullTooltipBy - spaceLeftOfPoint;\n    } else if (spaceRightOfPoint < pullTooltipBy) {\n      pullTooltipBy = spaceRightOfPoint;\n    } // Due to the imprecision of decimal/ratio based calculations and varying\n    // rounding behaviors, there are cases where the spacing adjustment is off\n    // by a pixel or two. This adds insurance to these calculations.\n\n\n    if (pullTooltipBy < 0) {\n      pullTooltipBy = 0;\n    } else if (pullTooltipBy > tooltipRect.width) {\n      pullTooltipBy = tooltipRect.width;\n    } // prevent small width fluctuations within 0.4px from\n    // changing the value below.\n    // This really helps for live to prevent the play\n    // progress time tooltip from jittering\n\n\n    pullTooltipBy = Math.round(pullTooltipBy);\n    this.el_.style.right = \"-\" + pullTooltipBy + \"px\";\n    this.write(content);\n  }\n  /**\n   * Write the time to the tooltip DOM element.\n   *\n   * @param {string} content\n   *        The formatted time for the tooltip.\n   */\n  ;\n\n  _proto.write = function write(content) {\n    textContent(this.el_, content);\n  }\n  /**\n   * Updates the position of the time tooltip relative to the `SeekBar`.\n   *\n   * @param {Object} seekBarRect\n   *        The `ClientRect` for the {@link SeekBar} element.\n   *\n   * @param {number} seekBarPoint\n   *        A number from 0 to 1, representing a horizontal reference point\n   *        from the left edge of the {@link SeekBar}\n   *\n   * @param {number} time\n   *        The time to update the tooltip to, not used during live playback\n   *\n   * @param {Function} cb\n   *        A function that will be called during the request animation frame\n   *        for tooltips that need to do additional animations from the default\n   */\n  ;\n\n  _proto.updateTime = function updateTime(seekBarRect, seekBarPoint, time, cb) {\n    var _this2 = this;\n\n    this.requestNamedAnimationFrame('TimeTooltip#updateTime', function () {\n      var content;\n\n      var duration = _this2.player_.duration();\n\n      if (_this2.player_.liveTracker && _this2.player_.liveTracker.isLive()) {\n        var liveWindow = _this2.player_.liveTracker.liveWindow();\n\n        var secondsBehind = liveWindow - seekBarPoint * liveWindow;\n        content = (secondsBehind < 1 ? '' : '-') + formatTime(secondsBehind, liveWindow);\n      } else {\n        content = formatTime(time, duration);\n      }\n\n      _this2.update(seekBarRect, seekBarPoint, content);\n\n      if (cb) {\n        cb();\n      }\n    });\n  };\n\n  return TimeTooltip;\n}(Component$1);\n\nComponent$1.registerComponent('TimeTooltip', TimeTooltip);\n\n/**\n * Used by {@link SeekBar} to display media playback progress as part of the\n * {@link ProgressControl}.\n *\n * @extends Component\n */\n\nvar PlayProgressBar = /*#__PURE__*/function (_Component) {\n  _inheritsLoose(PlayProgressBar, _Component);\n\n  /**\n   * Creates an instance of this class.\n   *\n   * @param {Player} player\n   *        The {@link Player} that this class should be attached to.\n   *\n   * @param {Object} [options]\n   *        The key/value store of player options.\n   */\n  function PlayProgressBar(player, options) {\n    var _this;\n\n    _this = _Component.call(this, player, options) || this;\n    _this.update = throttle(bind(_assertThisInitialized(_this), _this.update), UPDATE_REFRESH_INTERVAL);\n    return _this;\n  }\n  /**\n   * Create the the DOM element for this class.\n   *\n   * @return {Element}\n   *         The element that was created.\n   */\n\n\n  var _proto = PlayProgressBar.prototype;\n\n  _proto.createEl = function createEl() {\n    return _Component.prototype.createEl.call(this, 'div', {\n      className: 'vjs-play-progress vjs-slider-bar'\n    }, {\n      'aria-hidden': 'true'\n    });\n  }\n  /**\n   * Enqueues updates to its own DOM as well as the DOM of its\n   * {@link TimeTooltip} child.\n   *\n   * @param {Object} seekBarRect\n   *        The `ClientRect` for the {@link SeekBar} element.\n   *\n   * @param {number} seekBarPoint\n   *        A number from 0 to 1, representing a horizontal reference point\n   *        from the left edge of the {@link SeekBar}\n   */\n  ;\n\n  _proto.update = function update(seekBarRect, seekBarPoint) {\n    var timeTooltip = this.getChild('timeTooltip');\n\n    if (!timeTooltip) {\n      return;\n    }\n\n    var time = this.player_.scrubbing() ? this.player_.getCache().currentTime : this.player_.currentTime();\n    timeTooltip.updateTime(seekBarRect, seekBarPoint, time);\n  };\n\n  return PlayProgressBar;\n}(Component$1);\n/**\n * Default options for {@link PlayProgressBar}.\n *\n * @type {Object}\n * @private\n */\n\n\nPlayProgressBar.prototype.options_ = {\n  children: []\n}; // Time tooltips should not be added to a player on mobile devices\n\nif (!IS_IOS && !IS_ANDROID) {\n  PlayProgressBar.prototype.options_.children.push('timeTooltip');\n}\n\nComponent$1.registerComponent('PlayProgressBar', PlayProgressBar);\n\n/**\n * The {@link MouseTimeDisplay} component tracks mouse movement over the\n * {@link ProgressControl}. It displays an indicator and a {@link TimeTooltip}\n * indicating the time which is represented by a given point in the\n * {@link ProgressControl}.\n *\n * @extends Component\n */\n\nvar MouseTimeDisplay = /*#__PURE__*/function (_Component) {\n  _inheritsLoose(MouseTimeDisplay, _Component);\n\n  /**\n   * Creates an instance of this class.\n   *\n   * @param {Player} player\n   *        The {@link Player} that this class should be attached to.\n   *\n   * @param {Object} [options]\n   *        The key/value store of player options.\n   */\n  function MouseTimeDisplay(player, options) {\n    var _this;\n\n    _this = _Component.call(this, player, options) || this;\n    _this.update = throttle(bind(_assertThisInitialized(_this), _this.update), UPDATE_REFRESH_INTERVAL);\n    return _this;\n  }\n  /**\n   * Create the DOM element for this class.\n   *\n   * @return {Element}\n   *         The element that was created.\n   */\n\n\n  var _proto = MouseTimeDisplay.prototype;\n\n  _proto.createEl = function createEl() {\n    return _Component.prototype.createEl.call(this, 'div', {\n      className: 'vjs-mouse-display'\n    });\n  }\n  /**\n   * Enqueues updates to its own DOM as well as the DOM of its\n   * {@link TimeTooltip} child.\n   *\n   * @param {Object} seekBarRect\n   *        The `ClientRect` for the {@link SeekBar} element.\n   *\n   * @param {number} seekBarPoint\n   *        A number from 0 to 1, representing a horizontal reference point\n   *        from the left edge of the {@link SeekBar}\n   */\n  ;\n\n  _proto.update = function update(seekBarRect, seekBarPoint) {\n    var _this2 = this;\n\n    var time = seekBarPoint * this.player_.duration();\n    this.getChild('timeTooltip').updateTime(seekBarRect, seekBarPoint, time, function () {\n      _this2.el_.style.left = seekBarRect.width * seekBarPoint + \"px\";\n    });\n  };\n\n  return MouseTimeDisplay;\n}(Component$1);\n/**\n * Default options for `MouseTimeDisplay`\n *\n * @type {Object}\n * @private\n */\n\n\nMouseTimeDisplay.prototype.options_ = {\n  children: ['timeTooltip']\n};\nComponent$1.registerComponent('MouseTimeDisplay', MouseTimeDisplay);\n\nvar STEP_SECONDS = 5; // The multiplier of STEP_SECONDS that PgUp/PgDown move the timeline.\n\nvar PAGE_KEY_MULTIPLIER = 12;\n/**\n * Seek bar and container for the progress bars. Uses {@link PlayProgressBar}\n * as its `bar`.\n *\n * @extends Slider\n */\n\nvar SeekBar = /*#__PURE__*/function (_Slider) {\n  _inheritsLoose(SeekBar, _Slider);\n\n  /**\n   * Creates an instance of this class.\n   *\n   * @param {Player} player\n   *        The `Player` that this class should be attached to.\n   *\n   * @param {Object} [options]\n   *        The key/value store of player options.\n   */\n  function SeekBar(player, options) {\n    var _this;\n\n    _this = _Slider.call(this, player, options) || this;\n\n    _this.setEventHandlers_();\n\n    return _this;\n  }\n  /**\n   * Sets the event handlers\n   *\n   * @private\n   */\n\n\n  var _proto = SeekBar.prototype;\n\n  _proto.setEventHandlers_ = function setEventHandlers_() {\n    var _this2 = this;\n\n    this.update_ = bind(this, this.update);\n    this.update = throttle(this.update_, UPDATE_REFRESH_INTERVAL);\n    this.on(this.player_, ['ended', 'durationchange', 'timeupdate'], this.update);\n\n    if (this.player_.liveTracker) {\n      this.on(this.player_.liveTracker, 'liveedgechange', this.update);\n    } // when playing, let's ensure we smoothly update the play progress bar\n    // via an interval\n\n\n    this.updateInterval = null;\n\n    this.enableIntervalHandler_ = function (e) {\n      return _this2.enableInterval_(e);\n    };\n\n    this.disableIntervalHandler_ = function (e) {\n      return _this2.disableInterval_(e);\n    };\n\n    this.on(this.player_, ['playing'], this.enableIntervalHandler_);\n    this.on(this.player_, ['ended', 'pause', 'waiting'], this.disableIntervalHandler_); // we don't need to update the play progress if the document is hidden,\n    // also, this causes the CPU to spike and eventually crash the page on IE11.\n\n    if ('hidden' in document && 'visibilityState' in document) {\n      this.on(document, 'visibilitychange', this.toggleVisibility_);\n    }\n  };\n\n  _proto.toggleVisibility_ = function toggleVisibility_(e) {\n    if (document.visibilityState === 'hidden') {\n      this.cancelNamedAnimationFrame('SeekBar#update');\n      this.cancelNamedAnimationFrame('Slider#update');\n      this.disableInterval_(e);\n    } else {\n      if (!this.player_.ended() && !this.player_.paused()) {\n        this.enableInterval_();\n      } // we just switched back to the page and someone may be looking, so, update ASAP\n\n\n      this.update();\n    }\n  };\n\n  _proto.enableInterval_ = function enableInterval_() {\n    if (this.updateInterval) {\n      return;\n    }\n\n    this.updateInterval = this.setInterval(this.update, UPDATE_REFRESH_INTERVAL);\n  };\n\n  _proto.disableInterval_ = function disableInterval_(e) {\n    if (this.player_.liveTracker && this.player_.liveTracker.isLive() && e && e.type !== 'ended') {\n      return;\n    }\n\n    if (!this.updateInterval) {\n      return;\n    }\n\n    this.clearInterval(this.updateInterval);\n    this.updateInterval = null;\n  }\n  /**\n   * Create the `Component`'s DOM element\n   *\n   * @return {Element}\n   *         The element that was created.\n   */\n  ;\n\n  _proto.createEl = function createEl() {\n    return _Slider.prototype.createEl.call(this, 'div', {\n      className: 'vjs-progress-holder'\n    }, {\n      'aria-label': this.localize('Progress Bar')\n    });\n  }\n  /**\n   * This function updates the play progress bar and accessibility\n   * attributes to whatever is passed in.\n   *\n   * @param {EventTarget~Event} [event]\n   *        The `timeupdate` or `ended` event that caused this to run.\n   *\n   * @listens Player#timeupdate\n   *\n   * @return {number}\n   *          The current percent at a number from 0-1\n   */\n  ;\n\n  _proto.update = function update(event) {\n    var _this3 = this;\n\n    // ignore updates while the tab is hidden\n    if (document.visibilityState === 'hidden') {\n      return;\n    }\n\n    var percent = _Slider.prototype.update.call(this);\n\n    this.requestNamedAnimationFrame('SeekBar#update', function () {\n      var currentTime = _this3.player_.ended() ? _this3.player_.duration() : _this3.getCurrentTime_();\n      var liveTracker = _this3.player_.liveTracker;\n\n      var duration = _this3.player_.duration();\n\n      if (liveTracker && liveTracker.isLive()) {\n        duration = _this3.player_.liveTracker.liveCurrentTime();\n      }\n\n      if (_this3.percent_ !== percent) {\n        // machine readable value of progress bar (percentage complete)\n        _this3.el_.setAttribute('aria-valuenow', (percent * 100).toFixed(2));\n\n        _this3.percent_ = percent;\n      }\n\n      if (_this3.currentTime_ !== currentTime || _this3.duration_ !== duration) {\n        // human readable value of progress bar (time complete)\n        _this3.el_.setAttribute('aria-valuetext', _this3.localize('progress bar timing: currentTime={1} duration={2}', [formatTime(currentTime, duration), formatTime(duration, duration)], '{1} of {2}'));\n\n        _this3.currentTime_ = currentTime;\n        _this3.duration_ = duration;\n      } // update the progress bar time tooltip with the current time\n\n\n      if (_this3.bar) {\n        _this3.bar.update(getBoundingClientRect(_this3.el()), _this3.getProgress());\n      }\n    });\n    return percent;\n  }\n  /**\n   * Prevent liveThreshold from causing seeks to seem like they\n   * are not happening from a user perspective.\n   *\n   * @param {number} ct\n   *        current time to seek to\n   */\n  ;\n\n  _proto.userSeek_ = function userSeek_(ct) {\n    if (this.player_.liveTracker && this.player_.liveTracker.isLive()) {\n      this.player_.liveTracker.nextSeekedFromUser();\n    }\n\n    this.player_.currentTime(ct);\n  }\n  /**\n   * Get the value of current time but allows for smooth scrubbing,\n   * when player can't keep up.\n   *\n   * @return {number}\n   *         The current time value to display\n   *\n   * @private\n   */\n  ;\n\n  _proto.getCurrentTime_ = function getCurrentTime_() {\n    return this.player_.scrubbing() ? this.player_.getCache().currentTime : this.player_.currentTime();\n  }\n  /**\n   * Get the percentage of media played so far.\n   *\n   * @return {number}\n   *         The percentage of media played so far (0 to 1).\n   */\n  ;\n\n  _proto.getPercent = function getPercent() {\n    var currentTime = this.getCurrentTime_();\n    var percent;\n    var liveTracker = this.player_.liveTracker;\n\n    if (liveTracker && liveTracker.isLive()) {\n      percent = (currentTime - liveTracker.seekableStart()) / liveTracker.liveWindow(); // prevent the percent from changing at the live edge\n\n      if (liveTracker.atLiveEdge()) {\n        percent = 1;\n      }\n    } else {\n      percent = currentTime / this.player_.duration();\n    }\n\n    return percent;\n  }\n  /**\n   * Handle mouse down on seek bar\n   *\n   * @param {EventTarget~Event} event\n   *        The `mousedown` event that caused this to run.\n   *\n   * @listens mousedown\n   */\n  ;\n\n  _proto.handleMouseDown = function handleMouseDown(event) {\n    if (!isSingleLeftClick(event)) {\n      return;\n    } // Stop event propagation to prevent double fire in progress-control.js\n\n\n    event.stopPropagation();\n    this.player_.scrubbing(true);\n    this.videoWasPlaying = !this.player_.paused();\n    this.player_.pause();\n\n    _Slider.prototype.handleMouseDown.call(this, event);\n  }\n  /**\n   * Handle mouse move on seek bar\n   *\n   * @param {EventTarget~Event} event\n   *        The `mousemove` event that caused this to run.\n   *\n   * @listens mousemove\n   */\n  ;\n\n  _proto.handleMouseMove = function handleMouseMove(event) {\n    if (!isSingleLeftClick(event)) {\n      return;\n    }\n\n    var newTime;\n    var distance = this.calculateDistance(event);\n    var liveTracker = this.player_.liveTracker;\n\n    if (!liveTracker || !liveTracker.isLive()) {\n      newTime = distance * this.player_.duration(); // Don't let video end while scrubbing.\n\n      if (newTime === this.player_.duration()) {\n        newTime = newTime - 0.1;\n      }\n    } else {\n      if (distance >= 0.99) {\n        liveTracker.seekToLiveEdge();\n        return;\n      }\n\n      var seekableStart = liveTracker.seekableStart();\n      var seekableEnd = liveTracker.liveCurrentTime();\n      newTime = seekableStart + distance * liveTracker.liveWindow(); // Don't let video end while scrubbing.\n\n      if (newTime >= seekableEnd) {\n        newTime = seekableEnd;\n      } // Compensate for precision differences so that currentTime is not less\n      // than seekable start\n\n\n      if (newTime <= seekableStart) {\n        newTime = seekableStart + 0.1;\n      } // On android seekableEnd can be Infinity sometimes,\n      // this will cause newTime to be Infinity, which is\n      // not a valid currentTime.\n\n\n      if (newTime === Infinity) {\n        return;\n      }\n    } // Set new time (tell player to seek to new time)\n\n\n    this.userSeek_(newTime);\n  };\n\n  _proto.enable = function enable() {\n    _Slider.prototype.enable.call(this);\n\n    var mouseTimeDisplay = this.getChild('mouseTimeDisplay');\n\n    if (!mouseTimeDisplay) {\n      return;\n    }\n\n    mouseTimeDisplay.show();\n  };\n\n  _proto.disable = function disable() {\n    _Slider.prototype.disable.call(this);\n\n    var mouseTimeDisplay = this.getChild('mouseTimeDisplay');\n\n    if (!mouseTimeDisplay) {\n      return;\n    }\n\n    mouseTimeDisplay.hide();\n  }\n  /**\n   * Handle mouse up on seek bar\n   *\n   * @param {EventTarget~Event} event\n   *        The `mouseup` event that caused this to run.\n   *\n   * @listens mouseup\n   */\n  ;\n\n  _proto.handleMouseUp = function handleMouseUp(event) {\n    _Slider.prototype.handleMouseUp.call(this, event); // Stop event propagation to prevent double fire in progress-control.js\n\n\n    if (event) {\n      event.stopPropagation();\n    }\n\n    this.player_.scrubbing(false);\n    /**\n     * Trigger timeupdate because we're done seeking and the time has changed.\n     * This is particularly useful for if the player is paused to time the time displays.\n     *\n     * @event Tech#timeupdate\n     * @type {EventTarget~Event}\n     */\n\n    this.player_.trigger({\n      type: 'timeupdate',\n      target: this,\n      manuallyTriggered: true\n    });\n\n    if (this.videoWasPlaying) {\n      silencePromise(this.player_.play());\n    } else {\n      // We're done seeking and the time has changed.\n      // If the player is paused, make sure we display the correct time on the seek bar.\n      this.update_();\n    }\n  }\n  /**\n   * Move more quickly fast forward for keyboard-only users\n   */\n  ;\n\n  _proto.stepForward = function stepForward() {\n    this.userSeek_(this.player_.currentTime() + STEP_SECONDS);\n  }\n  /**\n   * Move more quickly rewind for keyboard-only users\n   */\n  ;\n\n  _proto.stepBack = function stepBack() {\n    this.userSeek_(this.player_.currentTime() - STEP_SECONDS);\n  }\n  /**\n   * Toggles the playback state of the player\n   * This gets called when enter or space is used on the seekbar\n   *\n   * @param {EventTarget~Event} event\n   *        The `keydown` event that caused this function to be called\n   *\n   */\n  ;\n\n  _proto.handleAction = function handleAction(event) {\n    if (this.player_.paused()) {\n      this.player_.play();\n    } else {\n      this.player_.pause();\n    }\n  }\n  /**\n   * Called when this SeekBar has focus and a key gets pressed down.\n   * Supports the following keys:\n   *\n   *   Space or Enter key fire a click event\n   *   Home key moves to start of the timeline\n   *   End key moves to end of the timeline\n   *   Digit \"0\" through \"9\" keys move to 0%, 10% ... 80%, 90% of the timeline\n   *   PageDown key moves back a larger step than ArrowDown\n   *   PageUp key moves forward a large step\n   *\n   * @param {EventTarget~Event} event\n   *        The `keydown` event that caused this function to be called.\n   *\n   * @listens keydown\n   */\n  ;\n\n  _proto.handleKeyDown = function handleKeyDown(event) {\n    var liveTracker = this.player_.liveTracker;\n\n    if (keycode.isEventKey(event, 'Space') || keycode.isEventKey(event, 'Enter')) {\n      event.preventDefault();\n      event.stopPropagation();\n      this.handleAction(event);\n    } else if (keycode.isEventKey(event, 'Home')) {\n      event.preventDefault();\n      event.stopPropagation();\n      this.userSeek_(0);\n    } else if (keycode.isEventKey(event, 'End')) {\n      event.preventDefault();\n      event.stopPropagation();\n\n      if (liveTracker && liveTracker.isLive()) {\n        this.userSeek_(liveTracker.liveCurrentTime());\n      } else {\n        this.userSeek_(this.player_.duration());\n      }\n    } else if (/^[0-9]$/.test(keycode(event))) {\n      event.preventDefault();\n      event.stopPropagation();\n      var gotoFraction = (keycode.codes[keycode(event)] - keycode.codes['0']) * 10.0 / 100.0;\n\n      if (liveTracker && liveTracker.isLive()) {\n        this.userSeek_(liveTracker.seekableStart() + liveTracker.liveWindow() * gotoFraction);\n      } else {\n        this.userSeek_(this.player_.duration() * gotoFraction);\n      }\n    } else if (keycode.isEventKey(event, 'PgDn')) {\n      event.preventDefault();\n      event.stopPropagation();\n      this.userSeek_(this.player_.currentTime() - STEP_SECONDS * PAGE_KEY_MULTIPLIER);\n    } else if (keycode.isEventKey(event, 'PgUp')) {\n      event.preventDefault();\n      event.stopPropagation();\n      this.userSeek_(this.player_.currentTime() + STEP_SECONDS * PAGE_KEY_MULTIPLIER);\n    } else {\n      // Pass keydown handling up for unsupported keys\n      _Slider.prototype.handleKeyDown.call(this, event);\n    }\n  };\n\n  _proto.dispose = function dispose() {\n    this.disableInterval_();\n    this.off(this.player_, ['ended', 'durationchange', 'timeupdate'], this.update);\n\n    if (this.player_.liveTracker) {\n      this.off(this.player_.liveTracker, 'liveedgechange', this.update);\n    }\n\n    this.off(this.player_, ['playing'], this.enableIntervalHandler_);\n    this.off(this.player_, ['ended', 'pause', 'waiting'], this.disableIntervalHandler_); // we don't need to update the play progress if the document is hidden,\n    // also, this causes the CPU to spike and eventually crash the page on IE11.\n\n    if ('hidden' in document && 'visibilityState' in document) {\n      this.off(document, 'visibilitychange', this.toggleVisibility_);\n    }\n\n    _Slider.prototype.dispose.call(this);\n  };\n\n  return SeekBar;\n}(Slider);\n/**\n * Default options for the `SeekBar`\n *\n * @type {Object}\n * @private\n */\n\n\nSeekBar.prototype.options_ = {\n  children: ['loadProgressBar', 'playProgressBar'],\n  barName: 'playProgressBar'\n}; // MouseTimeDisplay tooltips should not be added to a player on mobile devices\n\nif (!IS_IOS && !IS_ANDROID) {\n  SeekBar.prototype.options_.children.splice(1, 0, 'mouseTimeDisplay');\n}\n\nComponent$1.registerComponent('SeekBar', SeekBar);\n\n/**\n * The Progress Control component contains the seek bar, load progress,\n * and play progress.\n *\n * @extends Component\n */\n\nvar ProgressControl = /*#__PURE__*/function (_Component) {\n  _inheritsLoose(ProgressControl, _Component);\n\n  /**\n   * Creates an instance of this class.\n   *\n   * @param {Player} player\n   *        The `Player` that this class should be attached to.\n   *\n   * @param {Object} [options]\n   *        The key/value store of player options.\n   */\n  function ProgressControl(player, options) {\n    var _this;\n\n    _this = _Component.call(this, player, options) || this;\n    _this.handleMouseMove = throttle(bind(_assertThisInitialized(_this), _this.handleMouseMove), UPDATE_REFRESH_INTERVAL);\n    _this.throttledHandleMouseSeek = throttle(bind(_assertThisInitialized(_this), _this.handleMouseSeek), UPDATE_REFRESH_INTERVAL);\n\n    _this.handleMouseUpHandler_ = function (e) {\n      return _this.handleMouseUp(e);\n    };\n\n    _this.handleMouseDownHandler_ = function (e) {\n      return _this.handleMouseDown(e);\n    };\n\n    _this.enable();\n\n    return _this;\n  }\n  /**\n   * Create the `Component`'s DOM element\n   *\n   * @return {Element}\n   *         The element that was created.\n   */\n\n\n  var _proto = ProgressControl.prototype;\n\n  _proto.createEl = function createEl() {\n    return _Component.prototype.createEl.call(this, 'div', {\n      className: 'vjs-progress-control vjs-control'\n    });\n  }\n  /**\n   * When the mouse moves over the `ProgressControl`, the pointer position\n   * gets passed down to the `MouseTimeDisplay` component.\n   *\n   * @param {EventTarget~Event} event\n   *        The `mousemove` event that caused this function to run.\n   *\n   * @listen mousemove\n   */\n  ;\n\n  _proto.handleMouseMove = function handleMouseMove(event) {\n    var seekBar = this.getChild('seekBar');\n\n    if (!seekBar) {\n      return;\n    }\n\n    var playProgressBar = seekBar.getChild('playProgressBar');\n    var mouseTimeDisplay = seekBar.getChild('mouseTimeDisplay');\n\n    if (!playProgressBar && !mouseTimeDisplay) {\n      return;\n    }\n\n    var seekBarEl = seekBar.el();\n    var seekBarRect = findPosition(seekBarEl);\n    var seekBarPoint = getPointerPosition(seekBarEl, event).x; // The default skin has a gap on either side of the `SeekBar`. This means\n    // that it's possible to trigger this behavior outside the boundaries of\n    // the `SeekBar`. This ensures we stay within it at all times.\n\n    seekBarPoint = clamp(seekBarPoint, 0, 1);\n\n    if (mouseTimeDisplay) {\n      mouseTimeDisplay.update(seekBarRect, seekBarPoint);\n    }\n\n    if (playProgressBar) {\n      playProgressBar.update(seekBarRect, seekBar.getProgress());\n    }\n  }\n  /**\n   * A throttled version of the {@link ProgressControl#handleMouseSeek} listener.\n   *\n   * @method ProgressControl#throttledHandleMouseSeek\n   * @param {EventTarget~Event} event\n   *        The `mousemove` event that caused this function to run.\n   *\n   * @listen mousemove\n   * @listen touchmove\n   */\n\n  /**\n   * Handle `mousemove` or `touchmove` events on the `ProgressControl`.\n   *\n   * @param {EventTarget~Event} event\n   *        `mousedown` or `touchstart` event that triggered this function\n   *\n   * @listens mousemove\n   * @listens touchmove\n   */\n  ;\n\n  _proto.handleMouseSeek = function handleMouseSeek(event) {\n    var seekBar = this.getChild('seekBar');\n\n    if (seekBar) {\n      seekBar.handleMouseMove(event);\n    }\n  }\n  /**\n   * Are controls are currently enabled for this progress control.\n   *\n   * @return {boolean}\n   *         true if controls are enabled, false otherwise\n   */\n  ;\n\n  _proto.enabled = function enabled() {\n    return this.enabled_;\n  }\n  /**\n   * Disable all controls on the progress control and its children\n   */\n  ;\n\n  _proto.disable = function disable() {\n    this.children().forEach(function (child) {\n      return child.disable && child.disable();\n    });\n\n    if (!this.enabled()) {\n      return;\n    }\n\n    this.off(['mousedown', 'touchstart'], this.handleMouseDownHandler_);\n    this.off(this.el_, 'mousemove', this.handleMouseMove);\n    this.removeListenersAddedOnMousedownAndTouchstart();\n    this.addClass('disabled');\n    this.enabled_ = false; // Restore normal playback state if controls are disabled while scrubbing\n\n    if (this.player_.scrubbing()) {\n      var seekBar = this.getChild('seekBar');\n      this.player_.scrubbing(false);\n\n      if (seekBar.videoWasPlaying) {\n        silencePromise(this.player_.play());\n      }\n    }\n  }\n  /**\n   * Enable all controls on the progress control and its children\n   */\n  ;\n\n  _proto.enable = function enable() {\n    this.children().forEach(function (child) {\n      return child.enable && child.enable();\n    });\n\n    if (this.enabled()) {\n      return;\n    }\n\n    this.on(['mousedown', 'touchstart'], this.handleMouseDownHandler_);\n    this.on(this.el_, 'mousemove', this.handleMouseMove);\n    this.removeClass('disabled');\n    this.enabled_ = true;\n  }\n  /**\n   * Cleanup listeners after the user finishes interacting with the progress controls\n   */\n  ;\n\n  _proto.removeListenersAddedOnMousedownAndTouchstart = function removeListenersAddedOnMousedownAndTouchstart() {\n    var doc = this.el_.ownerDocument;\n    this.off(doc, 'mousemove', this.throttledHandleMouseSeek);\n    this.off(doc, 'touchmove', this.throttledHandleMouseSeek);\n    this.off(doc, 'mouseup', this.handleMouseUpHandler_);\n    this.off(doc, 'touchend', this.handleMouseUpHandler_);\n  }\n  /**\n   * Handle `mousedown` or `touchstart` events on the `ProgressControl`.\n   *\n   * @param {EventTarget~Event} event\n   *        `mousedown` or `touchstart` event that triggered this function\n   *\n   * @listens mousedown\n   * @listens touchstart\n   */\n  ;\n\n  _proto.handleMouseDown = function handleMouseDown(event) {\n    var doc = this.el_.ownerDocument;\n    var seekBar = this.getChild('seekBar');\n\n    if (seekBar) {\n      seekBar.handleMouseDown(event);\n    }\n\n    this.on(doc, 'mousemove', this.throttledHandleMouseSeek);\n    this.on(doc, 'touchmove', this.throttledHandleMouseSeek);\n    this.on(doc, 'mouseup', this.handleMouseUpHandler_);\n    this.on(doc, 'touchend', this.handleMouseUpHandler_);\n  }\n  /**\n   * Handle `mouseup` or `touchend` events on the `ProgressControl`.\n   *\n   * @param {EventTarget~Event} event\n   *        `mouseup` or `touchend` event that triggered this function.\n   *\n   * @listens touchend\n   * @listens mouseup\n   */\n  ;\n\n  _proto.handleMouseUp = function handleMouseUp(event) {\n    var seekBar = this.getChild('seekBar');\n\n    if (seekBar) {\n      seekBar.handleMouseUp(event);\n    }\n\n    this.removeListenersAddedOnMousedownAndTouchstart();\n  };\n\n  return ProgressControl;\n}(Component$1);\n/**\n * Default options for `ProgressControl`\n *\n * @type {Object}\n * @private\n */\n\n\nProgressControl.prototype.options_ = {\n  children: ['seekBar']\n};\nComponent$1.registerComponent('ProgressControl', ProgressControl);\n\n/**\n * Toggle Picture-in-Picture mode\n *\n * @extends Button\n */\n\nvar PictureInPictureToggle = /*#__PURE__*/function (_Button) {\n  _inheritsLoose(PictureInPictureToggle, _Button);\n\n  /**\n   * Creates an instance of this class.\n   *\n   * @param {Player} player\n   *        The `Player` that this class should be attached to.\n   *\n   * @param {Object} [options]\n   *        The key/value store of player options.\n   *\n   * @listens Player#enterpictureinpicture\n   * @listens Player#leavepictureinpicture\n   */\n  function PictureInPictureToggle(player, options) {\n    var _this;\n\n    _this = _Button.call(this, player, options) || this;\n\n    _this.on(player, ['enterpictureinpicture', 'leavepictureinpicture'], function (e) {\n      return _this.handlePictureInPictureChange(e);\n    });\n\n    _this.on(player, ['disablepictureinpicturechanged', 'loadedmetadata'], function (e) {\n      return _this.handlePictureInPictureEnabledChange(e);\n    }); // TODO: Deactivate button on player emptied event.\n\n\n    _this.disable();\n\n    return _this;\n  }\n  /**\n   * Builds the default DOM `className`.\n   *\n   * @return {string}\n   *         The DOM `className` for this object.\n   */\n\n\n  var _proto = PictureInPictureToggle.prototype;\n\n  _proto.buildCSSClass = function buildCSSClass() {\n    return \"vjs-picture-in-picture-control \" + _Button.prototype.buildCSSClass.call(this);\n  }\n  /**\n   * Enables or disables button based on document.pictureInPictureEnabled property value\n   * or on value returned by player.disablePictureInPicture() method.\n   */\n  ;\n\n  _proto.handlePictureInPictureEnabledChange = function handlePictureInPictureEnabledChange() {\n    if (document.pictureInPictureEnabled && this.player_.disablePictureInPicture() === false) {\n      this.enable();\n    } else {\n      this.disable();\n    }\n  }\n  /**\n   * Handles enterpictureinpicture and leavepictureinpicture on the player and change control text accordingly.\n   *\n   * @param {EventTarget~Event} [event]\n   *        The {@link Player#enterpictureinpicture} or {@link Player#leavepictureinpicture} event that caused this function to be\n   *        called.\n   *\n   * @listens Player#enterpictureinpicture\n   * @listens Player#leavepictureinpicture\n   */\n  ;\n\n  _proto.handlePictureInPictureChange = function handlePictureInPictureChange(event) {\n    if (this.player_.isInPictureInPicture()) {\n      this.controlText('Exit Picture-in-Picture');\n    } else {\n      this.controlText('Picture-in-Picture');\n    }\n\n    this.handlePictureInPictureEnabledChange();\n  }\n  /**\n   * This gets called when an `PictureInPictureToggle` is \"clicked\". See\n   * {@link ClickableComponent} for more detailed information on what a click can be.\n   *\n   * @param {EventTarget~Event} [event]\n   *        The `keydown`, `tap`, or `click` event that caused this function to be\n   *        called.\n   *\n   * @listens tap\n   * @listens click\n   */\n  ;\n\n  _proto.handleClick = function handleClick(event) {\n    if (!this.player_.isInPictureInPicture()) {\n      this.player_.requestPictureInPicture();\n    } else {\n      this.player_.exitPictureInPicture();\n    }\n  };\n\n  return PictureInPictureToggle;\n}(Button);\n/**\n * The text that should display over the `PictureInPictureToggle`s controls. Added for localization.\n *\n * @type {string}\n * @private\n */\n\n\nPictureInPictureToggle.prototype.controlText_ = 'Picture-in-Picture';\nComponent$1.registerComponent('PictureInPictureToggle', PictureInPictureToggle);\n\n/**\n * Toggle fullscreen video\n *\n * @extends Button\n */\n\nvar FullscreenToggle = /*#__PURE__*/function (_Button) {\n  _inheritsLoose(FullscreenToggle, _Button);\n\n  /**\n   * Creates an instance of this class.\n   *\n   * @param {Player} player\n   *        The `Player` that this class should be attached to.\n   *\n   * @param {Object} [options]\n   *        The key/value store of player options.\n   */\n  function FullscreenToggle(player, options) {\n    var _this;\n\n    _this = _Button.call(this, player, options) || this;\n\n    _this.on(player, 'fullscreenchange', function (e) {\n      return _this.handleFullscreenChange(e);\n    });\n\n    if (document[player.fsApi_.fullscreenEnabled] === false) {\n      _this.disable();\n    }\n\n    return _this;\n  }\n  /**\n   * Builds the default DOM `className`.\n   *\n   * @return {string}\n   *         The DOM `className` for this object.\n   */\n\n\n  var _proto = FullscreenToggle.prototype;\n\n  _proto.buildCSSClass = function buildCSSClass() {\n    return \"vjs-fullscreen-control \" + _Button.prototype.buildCSSClass.call(this);\n  }\n  /**\n   * Handles fullscreenchange on the player and change control text accordingly.\n   *\n   * @param {EventTarget~Event} [event]\n   *        The {@link Player#fullscreenchange} event that caused this function to be\n   *        called.\n   *\n   * @listens Player#fullscreenchange\n   */\n  ;\n\n  _proto.handleFullscreenChange = function handleFullscreenChange(event) {\n    if (this.player_.isFullscreen()) {\n      this.controlText('Non-Fullscreen');\n    } else {\n      this.controlText('Fullscreen');\n    }\n  }\n  /**\n   * This gets called when an `FullscreenToggle` is \"clicked\". See\n   * {@link ClickableComponent} for more detailed information on what a click can be.\n   *\n   * @param {EventTarget~Event} [event]\n   *        The `keydown`, `tap`, or `click` event that caused this function to be\n   *        called.\n   *\n   * @listens tap\n   * @listens click\n   */\n  ;\n\n  _proto.handleClick = function handleClick(event) {\n    if (!this.player_.isFullscreen()) {\n      this.player_.requestFullscreen();\n    } else {\n      this.player_.exitFullscreen();\n    }\n  };\n\n  return FullscreenToggle;\n}(Button);\n/**\n * The text that should display over the `FullscreenToggle`s controls. Added for localization.\n *\n * @type {string}\n * @private\n */\n\n\nFullscreenToggle.prototype.controlText_ = 'Fullscreen';\nComponent$1.registerComponent('FullscreenToggle', FullscreenToggle);\n\n/**\n * Check if volume control is supported and if it isn't hide the\n * `Component` that was passed  using the `vjs-hidden` class.\n *\n * @param {Component} self\n *        The component that should be hidden if volume is unsupported\n *\n * @param {Player} player\n *        A reference to the player\n *\n * @private\n */\nvar checkVolumeSupport = function checkVolumeSupport(self, player) {\n  // hide volume controls when they're not supported by the current tech\n  if (player.tech_ && !player.tech_.featuresVolumeControl) {\n    self.addClass('vjs-hidden');\n  }\n\n  self.on(player, 'loadstart', function () {\n    if (!player.tech_.featuresVolumeControl) {\n      self.addClass('vjs-hidden');\n    } else {\n      self.removeClass('vjs-hidden');\n    }\n  });\n};\n\n/**\n * Shows volume level\n *\n * @extends Component\n */\n\nvar VolumeLevel = /*#__PURE__*/function (_Component) {\n  _inheritsLoose(VolumeLevel, _Component);\n\n  function VolumeLevel() {\n    return _Component.apply(this, arguments) || this;\n  }\n\n  var _proto = VolumeLevel.prototype;\n\n  /**\n   * Create the `Component`'s DOM element\n   *\n   * @return {Element}\n   *         The element that was created.\n   */\n  _proto.createEl = function createEl() {\n    var el = _Component.prototype.createEl.call(this, 'div', {\n      className: 'vjs-volume-level'\n    });\n\n    el.appendChild(_Component.prototype.createEl.call(this, 'span', {\n      className: 'vjs-control-text'\n    }));\n    return el;\n  };\n\n  return VolumeLevel;\n}(Component$1);\n\nComponent$1.registerComponent('VolumeLevel', VolumeLevel);\n\n/**\n * Volume level tooltips display a volume above or side by side the volume bar.\n *\n * @extends Component\n */\n\nvar VolumeLevelTooltip = /*#__PURE__*/function (_Component) {\n  _inheritsLoose(VolumeLevelTooltip, _Component);\n\n  /**\n   * Creates an instance of this class.\n   *\n   * @param {Player} player\n   *        The {@link Player} that this class should be attached to.\n   *\n   * @param {Object} [options]\n   *        The key/value store of player options.\n   */\n  function VolumeLevelTooltip(player, options) {\n    var _this;\n\n    _this = _Component.call(this, player, options) || this;\n    _this.update = throttle(bind(_assertThisInitialized(_this), _this.update), UPDATE_REFRESH_INTERVAL);\n    return _this;\n  }\n  /**\n   * Create the volume tooltip DOM element\n   *\n   * @return {Element}\n   *         The element that was created.\n   */\n\n\n  var _proto = VolumeLevelTooltip.prototype;\n\n  _proto.createEl = function createEl() {\n    return _Component.prototype.createEl.call(this, 'div', {\n      className: 'vjs-volume-tooltip'\n    }, {\n      'aria-hidden': 'true'\n    });\n  }\n  /**\n   * Updates the position of the tooltip relative to the `VolumeBar` and\n   * its content text.\n   *\n   * @param {Object} rangeBarRect\n   *        The `ClientRect` for the {@link VolumeBar} element.\n   *\n   * @param {number} rangeBarPoint\n   *        A number from 0 to 1, representing a horizontal/vertical reference point\n   *        from the left edge of the {@link VolumeBar}\n   *\n   * @param {boolean} vertical\n   *        Referees to the Volume control position\n   *        in the control bar{@link VolumeControl}\n   *\n   */\n  ;\n\n  _proto.update = function update(rangeBarRect, rangeBarPoint, vertical, content) {\n    if (!vertical) {\n      var tooltipRect = getBoundingClientRect(this.el_);\n      var playerRect = getBoundingClientRect(this.player_.el());\n      var volumeBarPointPx = rangeBarRect.width * rangeBarPoint;\n\n      if (!playerRect || !tooltipRect) {\n        return;\n      }\n\n      var spaceLeftOfPoint = rangeBarRect.left - playerRect.left + volumeBarPointPx;\n      var spaceRightOfPoint = rangeBarRect.width - volumeBarPointPx + (playerRect.right - rangeBarRect.right);\n      var pullTooltipBy = tooltipRect.width / 2;\n\n      if (spaceLeftOfPoint < pullTooltipBy) {\n        pullTooltipBy += pullTooltipBy - spaceLeftOfPoint;\n      } else if (spaceRightOfPoint < pullTooltipBy) {\n        pullTooltipBy = spaceRightOfPoint;\n      }\n\n      if (pullTooltipBy < 0) {\n        pullTooltipBy = 0;\n      } else if (pullTooltipBy > tooltipRect.width) {\n        pullTooltipBy = tooltipRect.width;\n      }\n\n      this.el_.style.right = \"-\" + pullTooltipBy + \"px\";\n    }\n\n    this.write(content + \"%\");\n  }\n  /**\n   * Write the volume to the tooltip DOM element.\n   *\n   * @param {string} content\n   *        The formatted volume for the tooltip.\n   */\n  ;\n\n  _proto.write = function write(content) {\n    textContent(this.el_, content);\n  }\n  /**\n   * Updates the position of the volume tooltip relative to the `VolumeBar`.\n   *\n   * @param {Object} rangeBarRect\n   *        The `ClientRect` for the {@link VolumeBar} element.\n   *\n   * @param {number} rangeBarPoint\n   *        A number from 0 to 1, representing a horizontal/vertical reference point\n   *        from the left edge of the {@link VolumeBar}\n   *\n   * @param {boolean} vertical\n   *        Referees to the Volume control position\n   *        in the control bar{@link VolumeControl}\n   *\n   * @param {number} volume\n   *        The volume level to update the tooltip to\n   *\n   * @param {Function} cb\n   *        A function that will be called during the request animation frame\n   *        for tooltips that need to do additional animations from the default\n   */\n  ;\n\n  _proto.updateVolume = function updateVolume(rangeBarRect, rangeBarPoint, vertical, volume, cb) {\n    var _this2 = this;\n\n    this.requestNamedAnimationFrame('VolumeLevelTooltip#updateVolume', function () {\n      _this2.update(rangeBarRect, rangeBarPoint, vertical, volume.toFixed(0));\n\n      if (cb) {\n        cb();\n      }\n    });\n  };\n\n  return VolumeLevelTooltip;\n}(Component$1);\n\nComponent$1.registerComponent('VolumeLevelTooltip', VolumeLevelTooltip);\n\n/**\n * The {@link MouseVolumeLevelDisplay} component tracks mouse movement over the\n * {@link VolumeControl}. It displays an indicator and a {@link VolumeLevelTooltip}\n * indicating the volume level which is represented by a given point in the\n * {@link VolumeBar}.\n *\n * @extends Component\n */\n\nvar MouseVolumeLevelDisplay = /*#__PURE__*/function (_Component) {\n  _inheritsLoose(MouseVolumeLevelDisplay, _Component);\n\n  /**\n   * Creates an instance of this class.\n   *\n   * @param {Player} player\n   *        The {@link Player} that this class should be attached to.\n   *\n   * @param {Object} [options]\n   *        The key/value store of player options.\n   */\n  function MouseVolumeLevelDisplay(player, options) {\n    var _this;\n\n    _this = _Component.call(this, player, options) || this;\n    _this.update = throttle(bind(_assertThisInitialized(_this), _this.update), UPDATE_REFRESH_INTERVAL);\n    return _this;\n  }\n  /**\n   * Create the DOM element for this class.\n   *\n   * @return {Element}\n   *         The element that was created.\n   */\n\n\n  var _proto = MouseVolumeLevelDisplay.prototype;\n\n  _proto.createEl = function createEl() {\n    return _Component.prototype.createEl.call(this, 'div', {\n      className: 'vjs-mouse-display'\n    });\n  }\n  /**\n   * Enquires updates to its own DOM as well as the DOM of its\n   * {@link VolumeLevelTooltip} child.\n   *\n   * @param {Object} rangeBarRect\n   *        The `ClientRect` for the {@link VolumeBar} element.\n   *\n   * @param {number} rangeBarPoint\n   *        A number from 0 to 1, representing a horizontal/vertical reference point\n   *        from the left edge of the {@link VolumeBar}\n   *\n   * @param {boolean} vertical\n   *        Referees to the Volume control position\n   *        in the control bar{@link VolumeControl}\n   *\n   */\n  ;\n\n  _proto.update = function update(rangeBarRect, rangeBarPoint, vertical) {\n    var _this2 = this;\n\n    var volume = 100 * rangeBarPoint;\n    this.getChild('volumeLevelTooltip').updateVolume(rangeBarRect, rangeBarPoint, vertical, volume, function () {\n      if (vertical) {\n        _this2.el_.style.bottom = rangeBarRect.height * rangeBarPoint + \"px\";\n      } else {\n        _this2.el_.style.left = rangeBarRect.width * rangeBarPoint + \"px\";\n      }\n    });\n  };\n\n  return MouseVolumeLevelDisplay;\n}(Component$1);\n/**\n * Default options for `MouseVolumeLevelDisplay`\n *\n * @type {Object}\n * @private\n */\n\n\nMouseVolumeLevelDisplay.prototype.options_ = {\n  children: ['volumeLevelTooltip']\n};\nComponent$1.registerComponent('MouseVolumeLevelDisplay', MouseVolumeLevelDisplay);\n\n/**\n * The bar that contains the volume level and can be clicked on to adjust the level\n *\n * @extends Slider\n */\n\nvar VolumeBar = /*#__PURE__*/function (_Slider) {\n  _inheritsLoose(VolumeBar, _Slider);\n\n  /**\n   * Creates an instance of this class.\n   *\n   * @param {Player} player\n   *        The `Player` that this class should be attached to.\n   *\n   * @param {Object} [options]\n   *        The key/value store of player options.\n   */\n  function VolumeBar(player, options) {\n    var _this;\n\n    _this = _Slider.call(this, player, options) || this;\n\n    _this.on('slideractive', function (e) {\n      return _this.updateLastVolume_(e);\n    });\n\n    _this.on(player, 'volumechange', function (e) {\n      return _this.updateARIAAttributes(e);\n    });\n\n    player.ready(function () {\n      return _this.updateARIAAttributes();\n    });\n    return _this;\n  }\n  /**\n   * Create the `Component`'s DOM element\n   *\n   * @return {Element}\n   *         The element that was created.\n   */\n\n\n  var _proto = VolumeBar.prototype;\n\n  _proto.createEl = function createEl() {\n    return _Slider.prototype.createEl.call(this, 'div', {\n      className: 'vjs-volume-bar vjs-slider-bar'\n    }, {\n      'aria-label': this.localize('Volume Level'),\n      'aria-live': 'polite'\n    });\n  }\n  /**\n   * Handle mouse down on volume bar\n   *\n   * @param {EventTarget~Event} event\n   *        The `mousedown` event that caused this to run.\n   *\n   * @listens mousedown\n   */\n  ;\n\n  _proto.handleMouseDown = function handleMouseDown(event) {\n    if (!isSingleLeftClick(event)) {\n      return;\n    }\n\n    _Slider.prototype.handleMouseDown.call(this, event);\n  }\n  /**\n   * Handle movement events on the {@link VolumeMenuButton}.\n   *\n   * @param {EventTarget~Event} event\n   *        The event that caused this function to run.\n   *\n   * @listens mousemove\n   */\n  ;\n\n  _proto.handleMouseMove = function handleMouseMove(event) {\n    var mouseVolumeLevelDisplay = this.getChild('mouseVolumeLevelDisplay');\n\n    if (mouseVolumeLevelDisplay) {\n      var volumeBarEl = this.el();\n      var volumeBarRect = getBoundingClientRect(volumeBarEl);\n      var vertical = this.vertical();\n      var volumeBarPoint = getPointerPosition(volumeBarEl, event);\n      volumeBarPoint = vertical ? volumeBarPoint.y : volumeBarPoint.x; // The default skin has a gap on either side of the `VolumeBar`. This means\n      // that it's possible to trigger this behavior outside the boundaries of\n      // the `VolumeBar`. This ensures we stay within it at all times.\n\n      volumeBarPoint = clamp(volumeBarPoint, 0, 1);\n      mouseVolumeLevelDisplay.update(volumeBarRect, volumeBarPoint, vertical);\n    }\n\n    if (!isSingleLeftClick(event)) {\n      return;\n    }\n\n    this.checkMuted();\n    this.player_.volume(this.calculateDistance(event));\n  }\n  /**\n   * If the player is muted unmute it.\n   */\n  ;\n\n  _proto.checkMuted = function checkMuted() {\n    if (this.player_.muted()) {\n      this.player_.muted(false);\n    }\n  }\n  /**\n   * Get percent of volume level\n   *\n   * @return {number}\n   *         Volume level percent as a decimal number.\n   */\n  ;\n\n  _proto.getPercent = function getPercent() {\n    if (this.player_.muted()) {\n      return 0;\n    }\n\n    return this.player_.volume();\n  }\n  /**\n   * Increase volume level for keyboard users\n   */\n  ;\n\n  _proto.stepForward = function stepForward() {\n    this.checkMuted();\n    this.player_.volume(this.player_.volume() + 0.1);\n  }\n  /**\n   * Decrease volume level for keyboard users\n   */\n  ;\n\n  _proto.stepBack = function stepBack() {\n    this.checkMuted();\n    this.player_.volume(this.player_.volume() - 0.1);\n  }\n  /**\n   * Update ARIA accessibility attributes\n   *\n   * @param {EventTarget~Event} [event]\n   *        The `volumechange` event that caused this function to run.\n   *\n   * @listens Player#volumechange\n   */\n  ;\n\n  _proto.updateARIAAttributes = function updateARIAAttributes(event) {\n    var ariaValue = this.player_.muted() ? 0 : this.volumeAsPercentage_();\n    this.el_.setAttribute('aria-valuenow', ariaValue);\n    this.el_.setAttribute('aria-valuetext', ariaValue + '%');\n  }\n  /**\n   * Returns the current value of the player volume as a percentage\n   *\n   * @private\n   */\n  ;\n\n  _proto.volumeAsPercentage_ = function volumeAsPercentage_() {\n    return Math.round(this.player_.volume() * 100);\n  }\n  /**\n   * When user starts dragging the VolumeBar, store the volume and listen for\n   * the end of the drag. When the drag ends, if the volume was set to zero,\n   * set lastVolume to the stored volume.\n   *\n   * @listens slideractive\n   * @private\n   */\n  ;\n\n  _proto.updateLastVolume_ = function updateLastVolume_() {\n    var _this2 = this;\n\n    var volumeBeforeDrag = this.player_.volume();\n    this.one('sliderinactive', function () {\n      if (_this2.player_.volume() === 0) {\n        _this2.player_.lastVolume_(volumeBeforeDrag);\n      }\n    });\n  };\n\n  return VolumeBar;\n}(Slider);\n/**\n * Default options for the `VolumeBar`\n *\n * @type {Object}\n * @private\n */\n\n\nVolumeBar.prototype.options_ = {\n  children: ['volumeLevel'],\n  barName: 'volumeLevel'\n}; // MouseVolumeLevelDisplay tooltip should not be added to a player on mobile devices\n\nif (!IS_IOS && !IS_ANDROID) {\n  VolumeBar.prototype.options_.children.splice(0, 0, 'mouseVolumeLevelDisplay');\n}\n/**\n * Call the update event for this Slider when this event happens on the player.\n *\n * @type {string}\n */\n\n\nVolumeBar.prototype.playerEvent = 'volumechange';\nComponent$1.registerComponent('VolumeBar', VolumeBar);\n\n/**\n * The component for controlling the volume level\n *\n * @extends Component\n */\n\nvar VolumeControl = /*#__PURE__*/function (_Component) {\n  _inheritsLoose(VolumeControl, _Component);\n\n  /**\n   * Creates an instance of this class.\n   *\n   * @param {Player} player\n   *        The `Player` that this class should be attached to.\n   *\n   * @param {Object} [options={}]\n   *        The key/value store of player options.\n   */\n  function VolumeControl(player, options) {\n    var _this;\n\n    if (options === void 0) {\n      options = {};\n    }\n\n    options.vertical = options.vertical || false; // Pass the vertical option down to the VolumeBar if\n    // the VolumeBar is turned on.\n\n    if (typeof options.volumeBar === 'undefined' || isPlain(options.volumeBar)) {\n      options.volumeBar = options.volumeBar || {};\n      options.volumeBar.vertical = options.vertical;\n    }\n\n    _this = _Component.call(this, player, options) || this; // hide this control if volume support is missing\n\n    checkVolumeSupport(_assertThisInitialized(_this), player);\n    _this.throttledHandleMouseMove = throttle(bind(_assertThisInitialized(_this), _this.handleMouseMove), UPDATE_REFRESH_INTERVAL);\n\n    _this.handleMouseUpHandler_ = function (e) {\n      return _this.handleMouseUp(e);\n    };\n\n    _this.on('mousedown', function (e) {\n      return _this.handleMouseDown(e);\n    });\n\n    _this.on('touchstart', function (e) {\n      return _this.handleMouseDown(e);\n    });\n\n    _this.on('mousemove', function (e) {\n      return _this.handleMouseMove(e);\n    }); // while the slider is active (the mouse has been pressed down and\n    // is dragging) or in focus we do not want to hide the VolumeBar\n\n\n    _this.on(_this.volumeBar, ['focus', 'slideractive'], function () {\n      _this.volumeBar.addClass('vjs-slider-active');\n\n      _this.addClass('vjs-slider-active');\n\n      _this.trigger('slideractive');\n    });\n\n    _this.on(_this.volumeBar, ['blur', 'sliderinactive'], function () {\n      _this.volumeBar.removeClass('vjs-slider-active');\n\n      _this.removeClass('vjs-slider-active');\n\n      _this.trigger('sliderinactive');\n    });\n\n    return _this;\n  }\n  /**\n   * Create the `Component`'s DOM element\n   *\n   * @return {Element}\n   *         The element that was created.\n   */\n\n\n  var _proto = VolumeControl.prototype;\n\n  _proto.createEl = function createEl() {\n    var orientationClass = 'vjs-volume-horizontal';\n\n    if (this.options_.vertical) {\n      orientationClass = 'vjs-volume-vertical';\n    }\n\n    return _Component.prototype.createEl.call(this, 'div', {\n      className: \"vjs-volume-control vjs-control \" + orientationClass\n    });\n  }\n  /**\n   * Handle `mousedown` or `touchstart` events on the `VolumeControl`.\n   *\n   * @param {EventTarget~Event} event\n   *        `mousedown` or `touchstart` event that triggered this function\n   *\n   * @listens mousedown\n   * @listens touchstart\n   */\n  ;\n\n  _proto.handleMouseDown = function handleMouseDown(event) {\n    var doc = this.el_.ownerDocument;\n    this.on(doc, 'mousemove', this.throttledHandleMouseMove);\n    this.on(doc, 'touchmove', this.throttledHandleMouseMove);\n    this.on(doc, 'mouseup', this.handleMouseUpHandler_);\n    this.on(doc, 'touchend', this.handleMouseUpHandler_);\n  }\n  /**\n   * Handle `mouseup` or `touchend` events on the `VolumeControl`.\n   *\n   * @param {EventTarget~Event} event\n   *        `mouseup` or `touchend` event that triggered this function.\n   *\n   * @listens touchend\n   * @listens mouseup\n   */\n  ;\n\n  _proto.handleMouseUp = function handleMouseUp(event) {\n    var doc = this.el_.ownerDocument;\n    this.off(doc, 'mousemove', this.throttledHandleMouseMove);\n    this.off(doc, 'touchmove', this.throttledHandleMouseMove);\n    this.off(doc, 'mouseup', this.handleMouseUpHandler_);\n    this.off(doc, 'touchend', this.handleMouseUpHandler_);\n  }\n  /**\n   * Handle `mousedown` or `touchstart` events on the `VolumeControl`.\n   *\n   * @param {EventTarget~Event} event\n   *        `mousedown` or `touchstart` event that triggered this function\n   *\n   * @listens mousedown\n   * @listens touchstart\n   */\n  ;\n\n  _proto.handleMouseMove = function handleMouseMove(event) {\n    this.volumeBar.handleMouseMove(event);\n  };\n\n  return VolumeControl;\n}(Component$1);\n/**\n * Default options for the `VolumeControl`\n *\n * @type {Object}\n * @private\n */\n\n\nVolumeControl.prototype.options_ = {\n  children: ['volumeBar']\n};\nComponent$1.registerComponent('VolumeControl', VolumeControl);\n\n/**\n * Check if muting volume is supported and if it isn't hide the mute toggle\n * button.\n *\n * @param {Component} self\n *        A reference to the mute toggle button\n *\n * @param {Player} player\n *        A reference to the player\n *\n * @private\n */\nvar checkMuteSupport = function checkMuteSupport(self, player) {\n  // hide mute toggle button if it's not supported by the current tech\n  if (player.tech_ && !player.tech_.featuresMuteControl) {\n    self.addClass('vjs-hidden');\n  }\n\n  self.on(player, 'loadstart', function () {\n    if (!player.tech_.featuresMuteControl) {\n      self.addClass('vjs-hidden');\n    } else {\n      self.removeClass('vjs-hidden');\n    }\n  });\n};\n\n/**\n * A button component for muting the audio.\n *\n * @extends Button\n */\n\nvar MuteToggle = /*#__PURE__*/function (_Button) {\n  _inheritsLoose(MuteToggle, _Button);\n\n  /**\n   * Creates an instance of this class.\n   *\n   * @param {Player} player\n   *        The `Player` that this class should be attached to.\n   *\n   * @param {Object} [options]\n   *        The key/value store of player options.\n   */\n  function MuteToggle(player, options) {\n    var _this;\n\n    _this = _Button.call(this, player, options) || this; // hide this control if volume support is missing\n\n    checkMuteSupport(_assertThisInitialized(_this), player);\n\n    _this.on(player, ['loadstart', 'volumechange'], function (e) {\n      return _this.update(e);\n    });\n\n    return _this;\n  }\n  /**\n   * Builds the default DOM `className`.\n   *\n   * @return {string}\n   *         The DOM `className` for this object.\n   */\n\n\n  var _proto = MuteToggle.prototype;\n\n  _proto.buildCSSClass = function buildCSSClass() {\n    return \"vjs-mute-control \" + _Button.prototype.buildCSSClass.call(this);\n  }\n  /**\n   * This gets called when an `MuteToggle` is \"clicked\". See\n   * {@link ClickableComponent} for more detailed information on what a click can be.\n   *\n   * @param {EventTarget~Event} [event]\n   *        The `keydown`, `tap`, or `click` event that caused this function to be\n   *        called.\n   *\n   * @listens tap\n   * @listens click\n   */\n  ;\n\n  _proto.handleClick = function handleClick(event) {\n    var vol = this.player_.volume();\n    var lastVolume = this.player_.lastVolume_();\n\n    if (vol === 0) {\n      var volumeToSet = lastVolume < 0.1 ? 0.1 : lastVolume;\n      this.player_.volume(volumeToSet);\n      this.player_.muted(false);\n    } else {\n      this.player_.muted(this.player_.muted() ? false : true);\n    }\n  }\n  /**\n   * Update the `MuteToggle` button based on the state of `volume` and `muted`\n   * on the player.\n   *\n   * @param {EventTarget~Event} [event]\n   *        The {@link Player#loadstart} event if this function was called\n   *        through an event.\n   *\n   * @listens Player#loadstart\n   * @listens Player#volumechange\n   */\n  ;\n\n  _proto.update = function update(event) {\n    this.updateIcon_();\n    this.updateControlText_();\n  }\n  /**\n   * Update the appearance of the `MuteToggle` icon.\n   *\n   * Possible states (given `level` variable below):\n   * - 0: crossed out\n   * - 1: zero bars of volume\n   * - 2: one bar of volume\n   * - 3: two bars of volume\n   *\n   * @private\n   */\n  ;\n\n  _proto.updateIcon_ = function updateIcon_() {\n    var vol = this.player_.volume();\n    var level = 3; // in iOS when a player is loaded with muted attribute\n    // and volume is changed with a native mute button\n    // we want to make sure muted state is updated\n\n    if (IS_IOS && this.player_.tech_ && this.player_.tech_.el_) {\n      this.player_.muted(this.player_.tech_.el_.muted);\n    }\n\n    if (vol === 0 || this.player_.muted()) {\n      level = 0;\n    } else if (vol < 0.33) {\n      level = 1;\n    } else if (vol < 0.67) {\n      level = 2;\n    } // TODO improve muted icon classes\n\n\n    for (var i = 0; i < 4; i++) {\n      removeClass(this.el_, \"vjs-vol-\" + i);\n    }\n\n    addClass(this.el_, \"vjs-vol-\" + level);\n  }\n  /**\n   * If `muted` has changed on the player, update the control text\n   * (`title` attribute on `vjs-mute-control` element and content of\n   * `vjs-control-text` element).\n   *\n   * @private\n   */\n  ;\n\n  _proto.updateControlText_ = function updateControlText_() {\n    var soundOff = this.player_.muted() || this.player_.volume() === 0;\n    var text = soundOff ? 'Unmute' : 'Mute';\n\n    if (this.controlText() !== text) {\n      this.controlText(text);\n    }\n  };\n\n  return MuteToggle;\n}(Button);\n/**\n * The text that should display over the `MuteToggle`s controls. Added for localization.\n *\n * @type {string}\n * @private\n */\n\n\nMuteToggle.prototype.controlText_ = 'Mute';\nComponent$1.registerComponent('MuteToggle', MuteToggle);\n\n/**\n * A Component to contain the MuteToggle and VolumeControl so that\n * they can work together.\n *\n * @extends Component\n */\n\nvar VolumePanel = /*#__PURE__*/function (_Component) {\n  _inheritsLoose(VolumePanel, _Component);\n\n  /**\n   * Creates an instance of this class.\n   *\n   * @param {Player} player\n   *        The `Player` that this class should be attached to.\n   *\n   * @param {Object} [options={}]\n   *        The key/value store of player options.\n   */\n  function VolumePanel(player, options) {\n    var _this;\n\n    if (options === void 0) {\n      options = {};\n    }\n\n    if (typeof options.inline !== 'undefined') {\n      options.inline = options.inline;\n    } else {\n      options.inline = true;\n    } // pass the inline option down to the VolumeControl as vertical if\n    // the VolumeControl is on.\n\n\n    if (typeof options.volumeControl === 'undefined' || isPlain(options.volumeControl)) {\n      options.volumeControl = options.volumeControl || {};\n      options.volumeControl.vertical = !options.inline;\n    }\n\n    _this = _Component.call(this, player, options) || this; // this handler is used by mouse handler methods below\n\n    _this.handleKeyPressHandler_ = function (e) {\n      return _this.handleKeyPress(e);\n    };\n\n    _this.on(player, ['loadstart'], function (e) {\n      return _this.volumePanelState_(e);\n    });\n\n    _this.on(_this.muteToggle, 'keyup', function (e) {\n      return _this.handleKeyPress(e);\n    });\n\n    _this.on(_this.volumeControl, 'keyup', function (e) {\n      return _this.handleVolumeControlKeyUp(e);\n    });\n\n    _this.on('keydown', function (e) {\n      return _this.handleKeyPress(e);\n    });\n\n    _this.on('mouseover', function (e) {\n      return _this.handleMouseOver(e);\n    });\n\n    _this.on('mouseout', function (e) {\n      return _this.handleMouseOut(e);\n    }); // while the slider is active (the mouse has been pressed down and\n    // is dragging) we do not want to hide the VolumeBar\n\n\n    _this.on(_this.volumeControl, ['slideractive'], _this.sliderActive_);\n\n    _this.on(_this.volumeControl, ['sliderinactive'], _this.sliderInactive_);\n\n    return _this;\n  }\n  /**\n   * Add vjs-slider-active class to the VolumePanel\n   *\n   * @listens VolumeControl#slideractive\n   * @private\n   */\n\n\n  var _proto = VolumePanel.prototype;\n\n  _proto.sliderActive_ = function sliderActive_() {\n    this.addClass('vjs-slider-active');\n  }\n  /**\n   * Removes vjs-slider-active class to the VolumePanel\n   *\n   * @listens VolumeControl#sliderinactive\n   * @private\n   */\n  ;\n\n  _proto.sliderInactive_ = function sliderInactive_() {\n    this.removeClass('vjs-slider-active');\n  }\n  /**\n   * Adds vjs-hidden or vjs-mute-toggle-only to the VolumePanel\n   * depending on MuteToggle and VolumeControl state\n   *\n   * @listens Player#loadstart\n   * @private\n   */\n  ;\n\n  _proto.volumePanelState_ = function volumePanelState_() {\n    // hide volume panel if neither volume control or mute toggle\n    // are displayed\n    if (this.volumeControl.hasClass('vjs-hidden') && this.muteToggle.hasClass('vjs-hidden')) {\n      this.addClass('vjs-hidden');\n    } // if only mute toggle is visible we don't want\n    // volume panel expanding when hovered or active\n\n\n    if (this.volumeControl.hasClass('vjs-hidden') && !this.muteToggle.hasClass('vjs-hidden')) {\n      this.addClass('vjs-mute-toggle-only');\n    }\n  }\n  /**\n   * Create the `Component`'s DOM element\n   *\n   * @return {Element}\n   *         The element that was created.\n   */\n  ;\n\n  _proto.createEl = function createEl() {\n    var orientationClass = 'vjs-volume-panel-horizontal';\n\n    if (!this.options_.inline) {\n      orientationClass = 'vjs-volume-panel-vertical';\n    }\n\n    return _Component.prototype.createEl.call(this, 'div', {\n      className: \"vjs-volume-panel vjs-control \" + orientationClass\n    });\n  }\n  /**\n   * Dispose of the `volume-panel` and all child components.\n   */\n  ;\n\n  _proto.dispose = function dispose() {\n    this.handleMouseOut();\n\n    _Component.prototype.dispose.call(this);\n  }\n  /**\n   * Handles `keyup` events on the `VolumeControl`, looking for ESC, which closes\n   * the volume panel and sets focus on `MuteToggle`.\n   *\n   * @param {EventTarget~Event} event\n   *        The `keyup` event that caused this function to be called.\n   *\n   * @listens keyup\n   */\n  ;\n\n  _proto.handleVolumeControlKeyUp = function handleVolumeControlKeyUp(event) {\n    if (keycode.isEventKey(event, 'Esc')) {\n      this.muteToggle.focus();\n    }\n  }\n  /**\n   * This gets called when a `VolumePanel` gains hover via a `mouseover` event.\n   * Turns on listening for `mouseover` event. When they happen it\n   * calls `this.handleMouseOver`.\n   *\n   * @param {EventTarget~Event} event\n   *        The `mouseover` event that caused this function to be called.\n   *\n   * @listens mouseover\n   */\n  ;\n\n  _proto.handleMouseOver = function handleMouseOver(event) {\n    this.addClass('vjs-hover');\n    on(document, 'keyup', this.handleKeyPressHandler_);\n  }\n  /**\n   * This gets called when a `VolumePanel` gains hover via a `mouseout` event.\n   * Turns on listening for `mouseout` event. When they happen it\n   * calls `this.handleMouseOut`.\n   *\n   * @param {EventTarget~Event} event\n   *        The `mouseout` event that caused this function to be called.\n   *\n   * @listens mouseout\n   */\n  ;\n\n  _proto.handleMouseOut = function handleMouseOut(event) {\n    this.removeClass('vjs-hover');\n    off(document, 'keyup', this.handleKeyPressHandler_);\n  }\n  /**\n   * Handles `keyup` event on the document or `keydown` event on the `VolumePanel`,\n   * looking for ESC, which hides the `VolumeControl`.\n   *\n   * @param {EventTarget~Event} event\n   *        The keypress that triggered this event.\n   *\n   * @listens keydown | keyup\n   */\n  ;\n\n  _proto.handleKeyPress = function handleKeyPress(event) {\n    if (keycode.isEventKey(event, 'Esc')) {\n      this.handleMouseOut();\n    }\n  };\n\n  return VolumePanel;\n}(Component$1);\n/**\n * Default options for the `VolumeControl`\n *\n * @type {Object}\n * @private\n */\n\n\nVolumePanel.prototype.options_ = {\n  children: ['muteToggle', 'volumeControl']\n};\nComponent$1.registerComponent('VolumePanel', VolumePanel);\n\n/**\n * The Menu component is used to build popup menus, including subtitle and\n * captions selection menus.\n *\n * @extends Component\n */\n\nvar Menu = /*#__PURE__*/function (_Component) {\n  _inheritsLoose(Menu, _Component);\n\n  /**\n   * Create an instance of this class.\n   *\n   * @param {Player} player\n   *        the player that this component should attach to\n   *\n   * @param {Object} [options]\n   *        Object of option names and values\n   *\n   */\n  function Menu(player, options) {\n    var _this;\n\n    _this = _Component.call(this, player, options) || this;\n\n    if (options) {\n      _this.menuButton_ = options.menuButton;\n    }\n\n    _this.focusedChild_ = -1;\n\n    _this.on('keydown', function (e) {\n      return _this.handleKeyDown(e);\n    }); // All the menu item instances share the same blur handler provided by the menu container.\n\n\n    _this.boundHandleBlur_ = function (e) {\n      return _this.handleBlur(e);\n    };\n\n    _this.boundHandleTapClick_ = function (e) {\n      return _this.handleTapClick(e);\n    };\n\n    return _this;\n  }\n  /**\n   * Add event listeners to the {@link MenuItem}.\n   *\n   * @param {Object} component\n   *        The instance of the `MenuItem` to add listeners to.\n   *\n   */\n\n\n  var _proto = Menu.prototype;\n\n  _proto.addEventListenerForItem = function addEventListenerForItem(component) {\n    if (!(component instanceof Component$1)) {\n      return;\n    }\n\n    this.on(component, 'blur', this.boundHandleBlur_);\n    this.on(component, ['tap', 'click'], this.boundHandleTapClick_);\n  }\n  /**\n   * Remove event listeners from the {@link MenuItem}.\n   *\n   * @param {Object} component\n   *        The instance of the `MenuItem` to remove listeners.\n   *\n   */\n  ;\n\n  _proto.removeEventListenerForItem = function removeEventListenerForItem(component) {\n    if (!(component instanceof Component$1)) {\n      return;\n    }\n\n    this.off(component, 'blur', this.boundHandleBlur_);\n    this.off(component, ['tap', 'click'], this.boundHandleTapClick_);\n  }\n  /**\n   * This method will be called indirectly when the component has been added\n   * before the component adds to the new menu instance by `addItem`.\n   * In this case, the original menu instance will remove the component\n   * by calling `removeChild`.\n   *\n   * @param {Object} component\n   *        The instance of the `MenuItem`\n   */\n  ;\n\n  _proto.removeChild = function removeChild(component) {\n    if (typeof component === 'string') {\n      component = this.getChild(component);\n    }\n\n    this.removeEventListenerForItem(component);\n\n    _Component.prototype.removeChild.call(this, component);\n  }\n  /**\n   * Add a {@link MenuItem} to the menu.\n   *\n   * @param {Object|string} component\n   *        The name or instance of the `MenuItem` to add.\n   *\n   */\n  ;\n\n  _proto.addItem = function addItem(component) {\n    var childComponent = this.addChild(component);\n\n    if (childComponent) {\n      this.addEventListenerForItem(childComponent);\n    }\n  }\n  /**\n   * Create the `Menu`s DOM element.\n   *\n   * @return {Element}\n   *         the element that was created\n   */\n  ;\n\n  _proto.createEl = function createEl$1() {\n    var contentElType = this.options_.contentElType || 'ul';\n    this.contentEl_ = createEl(contentElType, {\n      className: 'vjs-menu-content'\n    });\n    this.contentEl_.setAttribute('role', 'menu');\n\n    var el = _Component.prototype.createEl.call(this, 'div', {\n      append: this.contentEl_,\n      className: 'vjs-menu'\n    });\n\n    el.appendChild(this.contentEl_); // Prevent clicks from bubbling up. Needed for Menu Buttons,\n    // where a click on the parent is significant\n\n    on(el, 'click', function (event) {\n      event.preventDefault();\n      event.stopImmediatePropagation();\n    });\n    return el;\n  };\n\n  _proto.dispose = function dispose() {\n    this.contentEl_ = null;\n    this.boundHandleBlur_ = null;\n    this.boundHandleTapClick_ = null;\n\n    _Component.prototype.dispose.call(this);\n  }\n  /**\n   * Called when a `MenuItem` loses focus.\n   *\n   * @param {EventTarget~Event} event\n   *        The `blur` event that caused this function to be called.\n   *\n   * @listens blur\n   */\n  ;\n\n  _proto.handleBlur = function handleBlur(event) {\n    var relatedTarget = event.relatedTarget || document.activeElement; // Close menu popup when a user clicks outside the menu\n\n    if (!this.children().some(function (element) {\n      return element.el() === relatedTarget;\n    })) {\n      var btn = this.menuButton_;\n\n      if (btn && btn.buttonPressed_ && relatedTarget !== btn.el().firstChild) {\n        btn.unpressButton();\n      }\n    }\n  }\n  /**\n   * Called when a `MenuItem` gets clicked or tapped.\n   *\n   * @param {EventTarget~Event} event\n   *        The `click` or `tap` event that caused this function to be called.\n   *\n   * @listens click,tap\n   */\n  ;\n\n  _proto.handleTapClick = function handleTapClick(event) {\n    // Unpress the associated MenuButton, and move focus back to it\n    if (this.menuButton_) {\n      this.menuButton_.unpressButton();\n      var childComponents = this.children();\n\n      if (!Array.isArray(childComponents)) {\n        return;\n      }\n\n      var foundComponent = childComponents.filter(function (component) {\n        return component.el() === event.target;\n      })[0];\n\n      if (!foundComponent) {\n        return;\n      } // don't focus menu button if item is a caption settings item\n      // because focus will move elsewhere\n\n\n      if (foundComponent.name() !== 'CaptionSettingsMenuItem') {\n        this.menuButton_.focus();\n      }\n    }\n  }\n  /**\n   * Handle a `keydown` event on this menu. This listener is added in the constructor.\n   *\n   * @param {EventTarget~Event} event\n   *        A `keydown` event that happened on the menu.\n   *\n   * @listens keydown\n   */\n  ;\n\n  _proto.handleKeyDown = function handleKeyDown(event) {\n    // Left and Down Arrows\n    if (keycode.isEventKey(event, 'Left') || keycode.isEventKey(event, 'Down')) {\n      event.preventDefault();\n      event.stopPropagation();\n      this.stepForward(); // Up and Right Arrows\n    } else if (keycode.isEventKey(event, 'Right') || keycode.isEventKey(event, 'Up')) {\n      event.preventDefault();\n      event.stopPropagation();\n      this.stepBack();\n    }\n  }\n  /**\n   * Move to next (lower) menu item for keyboard users.\n   */\n  ;\n\n  _proto.stepForward = function stepForward() {\n    var stepChild = 0;\n\n    if (this.focusedChild_ !== undefined) {\n      stepChild = this.focusedChild_ + 1;\n    }\n\n    this.focus(stepChild);\n  }\n  /**\n   * Move to previous (higher) menu item for keyboard users.\n   */\n  ;\n\n  _proto.stepBack = function stepBack() {\n    var stepChild = 0;\n\n    if (this.focusedChild_ !== undefined) {\n      stepChild = this.focusedChild_ - 1;\n    }\n\n    this.focus(stepChild);\n  }\n  /**\n   * Set focus on a {@link MenuItem} in the `Menu`.\n   *\n   * @param {Object|string} [item=0]\n   *        Index of child item set focus on.\n   */\n  ;\n\n  _proto.focus = function focus(item) {\n    if (item === void 0) {\n      item = 0;\n    }\n\n    var children = this.children().slice();\n    var haveTitle = children.length && children[0].hasClass('vjs-menu-title');\n\n    if (haveTitle) {\n      children.shift();\n    }\n\n    if (children.length > 0) {\n      if (item < 0) {\n        item = 0;\n      } else if (item >= children.length) {\n        item = children.length - 1;\n      }\n\n      this.focusedChild_ = item;\n      children[item].el_.focus();\n    }\n  };\n\n  return Menu;\n}(Component$1);\n\nComponent$1.registerComponent('Menu', Menu);\n\n/**\n * A `MenuButton` class for any popup {@link Menu}.\n *\n * @extends Component\n */\n\nvar MenuButton = /*#__PURE__*/function (_Component) {\n  _inheritsLoose(MenuButton, _Component);\n\n  /**\n   * Creates an instance of this class.\n   *\n   * @param {Player} player\n   *        The `Player` that this class should be attached to.\n   *\n   * @param {Object} [options={}]\n   *        The key/value store of player options.\n   */\n  function MenuButton(player, options) {\n    var _this;\n\n    if (options === void 0) {\n      options = {};\n    }\n\n    _this = _Component.call(this, player, options) || this;\n    _this.menuButton_ = new Button(player, options);\n\n    _this.menuButton_.controlText(_this.controlText_);\n\n    _this.menuButton_.el_.setAttribute('aria-haspopup', 'true'); // Add buildCSSClass values to the button, not the wrapper\n\n\n    var buttonClass = Button.prototype.buildCSSClass();\n    _this.menuButton_.el_.className = _this.buildCSSClass() + ' ' + buttonClass;\n\n    _this.menuButton_.removeClass('vjs-control');\n\n    _this.addChild(_this.menuButton_);\n\n    _this.update();\n\n    _this.enabled_ = true;\n\n    var handleClick = function handleClick(e) {\n      return _this.handleClick(e);\n    };\n\n    _this.handleMenuKeyUp_ = function (e) {\n      return _this.handleMenuKeyUp(e);\n    };\n\n    _this.on(_this.menuButton_, 'tap', handleClick);\n\n    _this.on(_this.menuButton_, 'click', handleClick);\n\n    _this.on(_this.menuButton_, 'keydown', function (e) {\n      return _this.handleKeyDown(e);\n    });\n\n    _this.on(_this.menuButton_, 'mouseenter', function () {\n      _this.addClass('vjs-hover');\n\n      _this.menu.show();\n\n      on(document, 'keyup', _this.handleMenuKeyUp_);\n    });\n\n    _this.on('mouseleave', function (e) {\n      return _this.handleMouseLeave(e);\n    });\n\n    _this.on('keydown', function (e) {\n      return _this.handleSubmenuKeyDown(e);\n    });\n\n    return _this;\n  }\n  /**\n   * Update the menu based on the current state of its items.\n   */\n\n\n  var _proto = MenuButton.prototype;\n\n  _proto.update = function update() {\n    var menu = this.createMenu();\n\n    if (this.menu) {\n      this.menu.dispose();\n      this.removeChild(this.menu);\n    }\n\n    this.menu = menu;\n    this.addChild(menu);\n    /**\n     * Track the state of the menu button\n     *\n     * @type {Boolean}\n     * @private\n     */\n\n    this.buttonPressed_ = false;\n    this.menuButton_.el_.setAttribute('aria-expanded', 'false');\n\n    if (this.items && this.items.length <= this.hideThreshold_) {\n      this.hide();\n    } else {\n      this.show();\n    }\n  }\n  /**\n   * Create the menu and add all items to it.\n   *\n   * @return {Menu}\n   *         The constructed menu\n   */\n  ;\n\n  _proto.createMenu = function createMenu() {\n    var menu = new Menu(this.player_, {\n      menuButton: this\n    });\n    /**\n     * Hide the menu if the number of items is less than or equal to this threshold. This defaults\n     * to 0 and whenever we add items which can be hidden to the menu we'll increment it. We list\n     * it here because every time we run `createMenu` we need to reset the value.\n     *\n     * @protected\n     * @type {Number}\n     */\n\n    this.hideThreshold_ = 0; // Add a title list item to the top\n\n    if (this.options_.title) {\n      var titleEl = createEl('li', {\n        className: 'vjs-menu-title',\n        textContent: toTitleCase$1(this.options_.title),\n        tabIndex: -1\n      });\n      var titleComponent = new Component$1(this.player_, {\n        el: titleEl\n      });\n      menu.addItem(titleComponent);\n    }\n\n    this.items = this.createItems();\n\n    if (this.items) {\n      // Add menu items to the menu\n      for (var i = 0; i < this.items.length; i++) {\n        menu.addItem(this.items[i]);\n      }\n    }\n\n    return menu;\n  }\n  /**\n   * Create the list of menu items. Specific to each subclass.\n   *\n   * @abstract\n   */\n  ;\n\n  _proto.createItems = function createItems() {}\n  /**\n   * Create the `MenuButtons`s DOM element.\n   *\n   * @return {Element}\n   *         The element that gets created.\n   */\n  ;\n\n  _proto.createEl = function createEl() {\n    return _Component.prototype.createEl.call(this, 'div', {\n      className: this.buildWrapperCSSClass()\n    }, {});\n  }\n  /**\n   * Allow sub components to stack CSS class names for the wrapper element\n   *\n   * @return {string}\n   *         The constructed wrapper DOM `className`\n   */\n  ;\n\n  _proto.buildWrapperCSSClass = function buildWrapperCSSClass() {\n    var menuButtonClass = 'vjs-menu-button'; // If the inline option is passed, we want to use different styles altogether.\n\n    if (this.options_.inline === true) {\n      menuButtonClass += '-inline';\n    } else {\n      menuButtonClass += '-popup';\n    } // TODO: Fix the CSS so that this isn't necessary\n\n\n    var buttonClass = Button.prototype.buildCSSClass();\n    return \"vjs-menu-button \" + menuButtonClass + \" \" + buttonClass + \" \" + _Component.prototype.buildCSSClass.call(this);\n  }\n  /**\n   * Builds the default DOM `className`.\n   *\n   * @return {string}\n   *         The DOM `className` for this object.\n   */\n  ;\n\n  _proto.buildCSSClass = function buildCSSClass() {\n    var menuButtonClass = 'vjs-menu-button'; // If the inline option is passed, we want to use different styles altogether.\n\n    if (this.options_.inline === true) {\n      menuButtonClass += '-inline';\n    } else {\n      menuButtonClass += '-popup';\n    }\n\n    return \"vjs-menu-button \" + menuButtonClass + \" \" + _Component.prototype.buildCSSClass.call(this);\n  }\n  /**\n   * Get or set the localized control text that will be used for accessibility.\n   *\n   * > NOTE: This will come from the internal `menuButton_` element.\n   *\n   * @param {string} [text]\n   *        Control text for element.\n   *\n   * @param {Element} [el=this.menuButton_.el()]\n   *        Element to set the title on.\n   *\n   * @return {string}\n   *         - The control text when getting\n   */\n  ;\n\n  _proto.controlText = function controlText(text, el) {\n    if (el === void 0) {\n      el = this.menuButton_.el();\n    }\n\n    return this.menuButton_.controlText(text, el);\n  }\n  /**\n   * Dispose of the `menu-button` and all child components.\n   */\n  ;\n\n  _proto.dispose = function dispose() {\n    this.handleMouseLeave();\n\n    _Component.prototype.dispose.call(this);\n  }\n  /**\n   * Handle a click on a `MenuButton`.\n   * See {@link ClickableComponent#handleClick} for instances where this is called.\n   *\n   * @param {EventTarget~Event} event\n   *        The `keydown`, `tap`, or `click` event that caused this function to be\n   *        called.\n   *\n   * @listens tap\n   * @listens click\n   */\n  ;\n\n  _proto.handleClick = function handleClick(event) {\n    if (this.buttonPressed_) {\n      this.unpressButton();\n    } else {\n      this.pressButton();\n    }\n  }\n  /**\n   * Handle `mouseleave` for `MenuButton`.\n   *\n   * @param {EventTarget~Event} event\n   *        The `mouseleave` event that caused this function to be called.\n   *\n   * @listens mouseleave\n   */\n  ;\n\n  _proto.handleMouseLeave = function handleMouseLeave(event) {\n    this.removeClass('vjs-hover');\n    off(document, 'keyup', this.handleMenuKeyUp_);\n  }\n  /**\n   * Set the focus to the actual button, not to this element\n   */\n  ;\n\n  _proto.focus = function focus() {\n    this.menuButton_.focus();\n  }\n  /**\n   * Remove the focus from the actual button, not this element\n   */\n  ;\n\n  _proto.blur = function blur() {\n    this.menuButton_.blur();\n  }\n  /**\n   * Handle tab, escape, down arrow, and up arrow keys for `MenuButton`. See\n   * {@link ClickableComponent#handleKeyDown} for instances where this is called.\n   *\n   * @param {EventTarget~Event} event\n   *        The `keydown` event that caused this function to be called.\n   *\n   * @listens keydown\n   */\n  ;\n\n  _proto.handleKeyDown = function handleKeyDown(event) {\n    // Escape or Tab unpress the 'button'\n    if (keycode.isEventKey(event, 'Esc') || keycode.isEventKey(event, 'Tab')) {\n      if (this.buttonPressed_) {\n        this.unpressButton();\n      } // Don't preventDefault for Tab key - we still want to lose focus\n\n\n      if (!keycode.isEventKey(event, 'Tab')) {\n        event.preventDefault(); // Set focus back to the menu button's button\n\n        this.menuButton_.focus();\n      } // Up Arrow or Down Arrow also 'press' the button to open the menu\n\n    } else if (keycode.isEventKey(event, 'Up') || keycode.isEventKey(event, 'Down')) {\n      if (!this.buttonPressed_) {\n        event.preventDefault();\n        this.pressButton();\n      }\n    }\n  }\n  /**\n   * Handle a `keyup` event on a `MenuButton`. The listener for this is added in\n   * the constructor.\n   *\n   * @param {EventTarget~Event} event\n   *        Key press event\n   *\n   * @listens keyup\n   */\n  ;\n\n  _proto.handleMenuKeyUp = function handleMenuKeyUp(event) {\n    // Escape hides popup menu\n    if (keycode.isEventKey(event, 'Esc') || keycode.isEventKey(event, 'Tab')) {\n      this.removeClass('vjs-hover');\n    }\n  }\n  /**\n   * This method name now delegates to `handleSubmenuKeyDown`. This means\n   * anyone calling `handleSubmenuKeyPress` will not see their method calls\n   * stop working.\n   *\n   * @param {EventTarget~Event} event\n   *        The event that caused this function to be called.\n   */\n  ;\n\n  _proto.handleSubmenuKeyPress = function handleSubmenuKeyPress(event) {\n    this.handleSubmenuKeyDown(event);\n  }\n  /**\n   * Handle a `keydown` event on a sub-menu. The listener for this is added in\n   * the constructor.\n   *\n   * @param {EventTarget~Event} event\n   *        Key press event\n   *\n   * @listens keydown\n   */\n  ;\n\n  _proto.handleSubmenuKeyDown = function handleSubmenuKeyDown(event) {\n    // Escape or Tab unpress the 'button'\n    if (keycode.isEventKey(event, 'Esc') || keycode.isEventKey(event, 'Tab')) {\n      if (this.buttonPressed_) {\n        this.unpressButton();\n      } // Don't preventDefault for Tab key - we still want to lose focus\n\n\n      if (!keycode.isEventKey(event, 'Tab')) {\n        event.preventDefault(); // Set focus back to the menu button's button\n\n        this.menuButton_.focus();\n      }\n    }\n  }\n  /**\n   * Put the current `MenuButton` into a pressed state.\n   */\n  ;\n\n  _proto.pressButton = function pressButton() {\n    if (this.enabled_) {\n      this.buttonPressed_ = true;\n      this.menu.show();\n      this.menu.lockShowing();\n      this.menuButton_.el_.setAttribute('aria-expanded', 'true'); // set the focus into the submenu, except on iOS where it is resulting in\n      // undesired scrolling behavior when the player is in an iframe\n\n      if (IS_IOS && isInFrame()) {\n        // Return early so that the menu isn't focused\n        return;\n      }\n\n      this.menu.focus();\n    }\n  }\n  /**\n   * Take the current `MenuButton` out of a pressed state.\n   */\n  ;\n\n  _proto.unpressButton = function unpressButton() {\n    if (this.enabled_) {\n      this.buttonPressed_ = false;\n      this.menu.unlockShowing();\n      this.menu.hide();\n      this.menuButton_.el_.setAttribute('aria-expanded', 'false');\n    }\n  }\n  /**\n   * Disable the `MenuButton`. Don't allow it to be clicked.\n   */\n  ;\n\n  _proto.disable = function disable() {\n    this.unpressButton();\n    this.enabled_ = false;\n    this.addClass('vjs-disabled');\n    this.menuButton_.disable();\n  }\n  /**\n   * Enable the `MenuButton`. Allow it to be clicked.\n   */\n  ;\n\n  _proto.enable = function enable() {\n    this.enabled_ = true;\n    this.removeClass('vjs-disabled');\n    this.menuButton_.enable();\n  };\n\n  return MenuButton;\n}(Component$1);\n\nComponent$1.registerComponent('MenuButton', MenuButton);\n\n/**\n * The base class for buttons that toggle specific  track types (e.g. subtitles).\n *\n * @extends MenuButton\n */\n\nvar TrackButton = /*#__PURE__*/function (_MenuButton) {\n  _inheritsLoose(TrackButton, _MenuButton);\n\n  /**\n   * Creates an instance of this class.\n   *\n   * @param {Player} player\n   *        The `Player` that this class should be attached to.\n   *\n   * @param {Object} [options]\n   *        The key/value store of player options.\n   */\n  function TrackButton(player, options) {\n    var _this;\n\n    var tracks = options.tracks;\n    _this = _MenuButton.call(this, player, options) || this;\n\n    if (_this.items.length <= 1) {\n      _this.hide();\n    }\n\n    if (!tracks) {\n      return _assertThisInitialized(_this);\n    }\n\n    var updateHandler = bind(_assertThisInitialized(_this), _this.update);\n    tracks.addEventListener('removetrack', updateHandler);\n    tracks.addEventListener('addtrack', updateHandler);\n    tracks.addEventListener('labelchange', updateHandler);\n\n    _this.player_.on('ready', updateHandler);\n\n    _this.player_.on('dispose', function () {\n      tracks.removeEventListener('removetrack', updateHandler);\n      tracks.removeEventListener('addtrack', updateHandler);\n      tracks.removeEventListener('labelchange', updateHandler);\n    });\n\n    return _this;\n  }\n\n  return TrackButton;\n}(MenuButton);\n\nComponent$1.registerComponent('TrackButton', TrackButton);\n\n/**\n * @file menu-keys.js\n */\n\n/**\n  * All keys used for operation of a menu (`MenuButton`, `Menu`, and `MenuItem`)\n  * Note that 'Enter' and 'Space' are not included here (otherwise they would\n  * prevent the `MenuButton` and `MenuItem` from being keyboard-clickable)\n  * @typedef MenuKeys\n  * @array\n  */\nvar MenuKeys = ['Tab', 'Esc', 'Up', 'Down', 'Right', 'Left'];\n\n/**\n * The component for a menu item. `<li>`\n *\n * @extends ClickableComponent\n */\n\nvar MenuItem = /*#__PURE__*/function (_ClickableComponent) {\n  _inheritsLoose(MenuItem, _ClickableComponent);\n\n  /**\n   * Creates an instance of the this class.\n   *\n   * @param {Player} player\n   *        The `Player` that this class should be attached to.\n   *\n   * @param {Object} [options={}]\n   *        The key/value store of player options.\n   *\n   */\n  function MenuItem(player, options) {\n    var _this;\n\n    _this = _ClickableComponent.call(this, player, options) || this;\n    _this.selectable = options.selectable;\n    _this.isSelected_ = options.selected || false;\n    _this.multiSelectable = options.multiSelectable;\n\n    _this.selected(_this.isSelected_);\n\n    if (_this.selectable) {\n      if (_this.multiSelectable) {\n        _this.el_.setAttribute('role', 'menuitemcheckbox');\n      } else {\n        _this.el_.setAttribute('role', 'menuitemradio');\n      }\n    } else {\n      _this.el_.setAttribute('role', 'menuitem');\n    }\n\n    return _this;\n  }\n  /**\n   * Create the `MenuItem's DOM element\n   *\n   * @param {string} [type=li]\n   *        Element's node type, not actually used, always set to `li`.\n   *\n   * @param {Object} [props={}]\n   *        An object of properties that should be set on the element\n   *\n   * @param {Object} [attrs={}]\n   *        An object of attributes that should be set on the element\n   *\n   * @return {Element}\n   *         The element that gets created.\n   */\n\n\n  var _proto = MenuItem.prototype;\n\n  _proto.createEl = function createEl$1(type, props, attrs) {\n    // The control is textual, not just an icon\n    this.nonIconControl = true;\n\n    var el = _ClickableComponent.prototype.createEl.call(this, 'li', assign({\n      className: 'vjs-menu-item',\n      tabIndex: -1\n    }, props), attrs); // swap icon with menu item text.\n\n\n    el.replaceChild(createEl('span', {\n      className: 'vjs-menu-item-text',\n      textContent: this.localize(this.options_.label)\n    }), el.querySelector('.vjs-icon-placeholder'));\n    return el;\n  }\n  /**\n   * Ignore keys which are used by the menu, but pass any other ones up. See\n   * {@link ClickableComponent#handleKeyDown} for instances where this is called.\n   *\n   * @param {EventTarget~Event} event\n   *        The `keydown` event that caused this function to be called.\n   *\n   * @listens keydown\n   */\n  ;\n\n  _proto.handleKeyDown = function handleKeyDown(event) {\n    if (!MenuKeys.some(function (key) {\n      return keycode.isEventKey(event, key);\n    })) {\n      // Pass keydown handling up for unused keys\n      _ClickableComponent.prototype.handleKeyDown.call(this, event);\n    }\n  }\n  /**\n   * Any click on a `MenuItem` puts it into the selected state.\n   * See {@link ClickableComponent#handleClick} for instances where this is called.\n   *\n   * @param {EventTarget~Event} event\n   *        The `keydown`, `tap`, or `click` event that caused this function to be\n   *        called.\n   *\n   * @listens tap\n   * @listens click\n   */\n  ;\n\n  _proto.handleClick = function handleClick(event) {\n    this.selected(true);\n  }\n  /**\n   * Set the state for this menu item as selected or not.\n   *\n   * @param {boolean} selected\n   *        if the menu item is selected or not\n   */\n  ;\n\n  _proto.selected = function selected(_selected) {\n    if (this.selectable) {\n      if (_selected) {\n        this.addClass('vjs-selected');\n        this.el_.setAttribute('aria-checked', 'true'); // aria-checked isn't fully supported by browsers/screen readers,\n        // so indicate selected state to screen reader in the control text.\n\n        this.controlText(', selected');\n        this.isSelected_ = true;\n      } else {\n        this.removeClass('vjs-selected');\n        this.el_.setAttribute('aria-checked', 'false'); // Indicate un-selected state to screen reader\n\n        this.controlText('');\n        this.isSelected_ = false;\n      }\n    }\n  };\n\n  return MenuItem;\n}(ClickableComponent);\n\nComponent$1.registerComponent('MenuItem', MenuItem);\n\n/**\n * The specific menu item type for selecting a language within a text track kind\n *\n * @extends MenuItem\n */\n\nvar TextTrackMenuItem = /*#__PURE__*/function (_MenuItem) {\n  _inheritsLoose(TextTrackMenuItem, _MenuItem);\n\n  /**\n   * Creates an instance of this class.\n   *\n   * @param {Player} player\n   *        The `Player` that this class should be attached to.\n   *\n   * @param {Object} [options]\n   *        The key/value store of player options.\n   */\n  function TextTrackMenuItem(player, options) {\n    var _this;\n\n    var track = options.track;\n    var tracks = player.textTracks(); // Modify options for parent MenuItem class's init.\n\n    options.label = track.label || track.language || 'Unknown';\n    options.selected = track.mode === 'showing';\n    _this = _MenuItem.call(this, player, options) || this;\n    _this.track = track; // Determine the relevant kind(s) of tracks for this component and filter\n    // out empty kinds.\n\n    _this.kinds = (options.kinds || [options.kind || _this.track.kind]).filter(Boolean);\n\n    var changeHandler = function changeHandler() {\n      for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {\n        args[_key] = arguments[_key];\n      }\n\n      _this.handleTracksChange.apply(_assertThisInitialized(_this), args);\n    };\n\n    var selectedLanguageChangeHandler = function selectedLanguageChangeHandler() {\n      for (var _len2 = arguments.length, args = new Array(_len2), _key2 = 0; _key2 < _len2; _key2++) {\n        args[_key2] = arguments[_key2];\n      }\n\n      _this.handleSelectedLanguageChange.apply(_assertThisInitialized(_this), args);\n    };\n\n    player.on(['loadstart', 'texttrackchange'], changeHandler);\n    tracks.addEventListener('change', changeHandler);\n    tracks.addEventListener('selectedlanguagechange', selectedLanguageChangeHandler);\n\n    _this.on('dispose', function () {\n      player.off(['loadstart', 'texttrackchange'], changeHandler);\n      tracks.removeEventListener('change', changeHandler);\n      tracks.removeEventListener('selectedlanguagechange', selectedLanguageChangeHandler);\n    }); // iOS7 doesn't dispatch change events to TextTrackLists when an\n    // associated track's mode changes. Without something like\n    // Object.observe() (also not present on iOS7), it's not\n    // possible to detect changes to the mode attribute and polyfill\n    // the change event. As a poor substitute, we manually dispatch\n    // change events whenever the controls modify the mode.\n\n\n    if (tracks.onchange === undefined) {\n      var event;\n\n      _this.on(['tap', 'click'], function () {\n        if (typeof window.Event !== 'object') {\n          // Android 2.3 throws an Illegal Constructor error for window.Event\n          try {\n            event = new window.Event('change');\n          } catch (err) {// continue regardless of error\n          }\n        }\n\n        if (!event) {\n          event = document.createEvent('Event');\n          event.initEvent('change', true, true);\n        }\n\n        tracks.dispatchEvent(event);\n      });\n    } // set the default state based on current tracks\n\n\n    _this.handleTracksChange();\n\n    return _this;\n  }\n  /**\n   * This gets called when an `TextTrackMenuItem` is \"clicked\". See\n   * {@link ClickableComponent} for more detailed information on what a click can be.\n   *\n   * @param {EventTarget~Event} event\n   *        The `keydown`, `tap`, or `click` event that caused this function to be\n   *        called.\n   *\n   * @listens tap\n   * @listens click\n   */\n\n\n  var _proto = TextTrackMenuItem.prototype;\n\n  _proto.handleClick = function handleClick(event) {\n    var referenceTrack = this.track;\n    var tracks = this.player_.textTracks();\n\n    _MenuItem.prototype.handleClick.call(this, event);\n\n    if (!tracks) {\n      return;\n    }\n\n    for (var i = 0; i < tracks.length; i++) {\n      var track = tracks[i]; // If the track from the text tracks list is not of the right kind,\n      // skip it. We do not want to affect tracks of incompatible kind(s).\n\n      if (this.kinds.indexOf(track.kind) === -1) {\n        continue;\n      } // If this text track is the component's track and it is not showing,\n      // set it to showing.\n\n\n      if (track === referenceTrack) {\n        if (track.mode !== 'showing') {\n          track.mode = 'showing';\n        } // If this text track is not the component's track and it is not\n        // disabled, set it to disabled.\n\n      } else if (track.mode !== 'disabled') {\n        track.mode = 'disabled';\n      }\n    }\n  }\n  /**\n   * Handle text track list change\n   *\n   * @param {EventTarget~Event} event\n   *        The `change` event that caused this function to be called.\n   *\n   * @listens TextTrackList#change\n   */\n  ;\n\n  _proto.handleTracksChange = function handleTracksChange(event) {\n    var shouldBeSelected = this.track.mode === 'showing'; // Prevent redundant selected() calls because they may cause\n    // screen readers to read the appended control text unnecessarily\n\n    if (shouldBeSelected !== this.isSelected_) {\n      this.selected(shouldBeSelected);\n    }\n  };\n\n  _proto.handleSelectedLanguageChange = function handleSelectedLanguageChange(event) {\n    if (this.track.mode === 'showing') {\n      var selectedLanguage = this.player_.cache_.selectedLanguage; // Don't replace the kind of track across the same language\n\n      if (selectedLanguage && selectedLanguage.enabled && selectedLanguage.language === this.track.language && selectedLanguage.kind !== this.track.kind) {\n        return;\n      }\n\n      this.player_.cache_.selectedLanguage = {\n        enabled: true,\n        language: this.track.language,\n        kind: this.track.kind\n      };\n    }\n  };\n\n  _proto.dispose = function dispose() {\n    // remove reference to track object on dispose\n    this.track = null;\n\n    _MenuItem.prototype.dispose.call(this);\n  };\n\n  return TextTrackMenuItem;\n}(MenuItem);\n\nComponent$1.registerComponent('TextTrackMenuItem', TextTrackMenuItem);\n\n/**\n * A special menu item for turning of a specific type of text track\n *\n * @extends TextTrackMenuItem\n */\n\nvar OffTextTrackMenuItem = /*#__PURE__*/function (_TextTrackMenuItem) {\n  _inheritsLoose(OffTextTrackMenuItem, _TextTrackMenuItem);\n\n  /**\n   * Creates an instance of this class.\n   *\n   * @param {Player} player\n   *        The `Player` that this class should be attached to.\n   *\n   * @param {Object} [options]\n   *        The key/value store of player options.\n   */\n  function OffTextTrackMenuItem(player, options) {\n    // Create pseudo track info\n    // Requires options['kind']\n    options.track = {\n      player: player,\n      // it is no longer necessary to store `kind` or `kinds` on the track itself\n      // since they are now stored in the `kinds` property of all instances of\n      // TextTrackMenuItem, but this will remain for backwards compatibility\n      kind: options.kind,\n      kinds: options.kinds,\n      \"default\": false,\n      mode: 'disabled'\n    };\n\n    if (!options.kinds) {\n      options.kinds = [options.kind];\n    }\n\n    if (options.label) {\n      options.track.label = options.label;\n    } else {\n      options.track.label = options.kinds.join(' and ') + ' off';\n    } // MenuItem is selectable\n\n\n    options.selectable = true; // MenuItem is NOT multiSelectable (i.e. only one can be marked \"selected\" at a time)\n\n    options.multiSelectable = false;\n    return _TextTrackMenuItem.call(this, player, options) || this;\n  }\n  /**\n   * Handle text track change\n   *\n   * @param {EventTarget~Event} event\n   *        The event that caused this function to run\n   */\n\n\n  var _proto = OffTextTrackMenuItem.prototype;\n\n  _proto.handleTracksChange = function handleTracksChange(event) {\n    var tracks = this.player().textTracks();\n    var shouldBeSelected = true;\n\n    for (var i = 0, l = tracks.length; i < l; i++) {\n      var track = tracks[i];\n\n      if (this.options_.kinds.indexOf(track.kind) > -1 && track.mode === 'showing') {\n        shouldBeSelected = false;\n        break;\n      }\n    } // Prevent redundant selected() calls because they may cause\n    // screen readers to read the appended control text unnecessarily\n\n\n    if (shouldBeSelected !== this.isSelected_) {\n      this.selected(shouldBeSelected);\n    }\n  };\n\n  _proto.handleSelectedLanguageChange = function handleSelectedLanguageChange(event) {\n    var tracks = this.player().textTracks();\n    var allHidden = true;\n\n    for (var i = 0, l = tracks.length; i < l; i++) {\n      var track = tracks[i];\n\n      if (['captions', 'descriptions', 'subtitles'].indexOf(track.kind) > -1 && track.mode === 'showing') {\n        allHidden = false;\n        break;\n      }\n    }\n\n    if (allHidden) {\n      this.player_.cache_.selectedLanguage = {\n        enabled: false\n      };\n    }\n  };\n\n  return OffTextTrackMenuItem;\n}(TextTrackMenuItem);\n\nComponent$1.registerComponent('OffTextTrackMenuItem', OffTextTrackMenuItem);\n\n/**\n * The base class for buttons that toggle specific text track types (e.g. subtitles)\n *\n * @extends MenuButton\n */\n\nvar TextTrackButton = /*#__PURE__*/function (_TrackButton) {\n  _inheritsLoose(TextTrackButton, _TrackButton);\n\n  /**\n   * Creates an instance of this class.\n   *\n   * @param {Player} player\n   *        The `Player` that this class should be attached to.\n   *\n   * @param {Object} [options={}]\n   *        The key/value store of player options.\n   */\n  function TextTrackButton(player, options) {\n    if (options === void 0) {\n      options = {};\n    }\n\n    options.tracks = player.textTracks();\n    return _TrackButton.call(this, player, options) || this;\n  }\n  /**\n   * Create a menu item for each text track\n   *\n   * @param {TextTrackMenuItem[]} [items=[]]\n   *        Existing array of items to use during creation\n   *\n   * @return {TextTrackMenuItem[]}\n   *         Array of menu items that were created\n   */\n\n\n  var _proto = TextTrackButton.prototype;\n\n  _proto.createItems = function createItems(items, TrackMenuItem) {\n    if (items === void 0) {\n      items = [];\n    }\n\n    if (TrackMenuItem === void 0) {\n      TrackMenuItem = TextTrackMenuItem;\n    }\n\n    // Label is an override for the [track] off label\n    // USed to localise captions/subtitles\n    var label;\n\n    if (this.label_) {\n      label = this.label_ + \" off\";\n    } // Add an OFF menu item to turn all tracks off\n\n\n    items.push(new OffTextTrackMenuItem(this.player_, {\n      kinds: this.kinds_,\n      kind: this.kind_,\n      label: label\n    }));\n    this.hideThreshold_ += 1;\n    var tracks = this.player_.textTracks();\n\n    if (!Array.isArray(this.kinds_)) {\n      this.kinds_ = [this.kind_];\n    }\n\n    for (var i = 0; i < tracks.length; i++) {\n      var track = tracks[i]; // only add tracks that are of an appropriate kind and have a label\n\n      if (this.kinds_.indexOf(track.kind) > -1) {\n        var item = new TrackMenuItem(this.player_, {\n          track: track,\n          kinds: this.kinds_,\n          kind: this.kind_,\n          // MenuItem is selectable\n          selectable: true,\n          // MenuItem is NOT multiSelectable (i.e. only one can be marked \"selected\" at a time)\n          multiSelectable: false\n        });\n        item.addClass(\"vjs-\" + track.kind + \"-menu-item\");\n        items.push(item);\n      }\n    }\n\n    return items;\n  };\n\n  return TextTrackButton;\n}(TrackButton);\n\nComponent$1.registerComponent('TextTrackButton', TextTrackButton);\n\n/**\n * The chapter track menu item\n *\n * @extends MenuItem\n */\n\nvar ChaptersTrackMenuItem = /*#__PURE__*/function (_MenuItem) {\n  _inheritsLoose(ChaptersTrackMenuItem, _MenuItem);\n\n  /**\n   * Creates an instance of this class.\n   *\n   * @param {Player} player\n   *        The `Player` that this class should be attached to.\n   *\n   * @param {Object} [options]\n   *        The key/value store of player options.\n   */\n  function ChaptersTrackMenuItem(player, options) {\n    var _this;\n\n    var track = options.track;\n    var cue = options.cue;\n    var currentTime = player.currentTime(); // Modify options for parent MenuItem class's init.\n\n    options.selectable = true;\n    options.multiSelectable = false;\n    options.label = cue.text;\n    options.selected = cue.startTime <= currentTime && currentTime < cue.endTime;\n    _this = _MenuItem.call(this, player, options) || this;\n    _this.track = track;\n    _this.cue = cue;\n    track.addEventListener('cuechange', bind(_assertThisInitialized(_this), _this.update));\n    return _this;\n  }\n  /**\n   * This gets called when an `ChaptersTrackMenuItem` is \"clicked\". See\n   * {@link ClickableComponent} for more detailed information on what a click can be.\n   *\n   * @param {EventTarget~Event} [event]\n   *        The `keydown`, `tap`, or `click` event that caused this function to be\n   *        called.\n   *\n   * @listens tap\n   * @listens click\n   */\n\n\n  var _proto = ChaptersTrackMenuItem.prototype;\n\n  _proto.handleClick = function handleClick(event) {\n    _MenuItem.prototype.handleClick.call(this);\n\n    this.player_.currentTime(this.cue.startTime);\n    this.update(this.cue.startTime);\n  }\n  /**\n   * Update chapter menu item\n   *\n   * @param {EventTarget~Event} [event]\n   *        The `cuechange` event that caused this function to run.\n   *\n   * @listens TextTrack#cuechange\n   */\n  ;\n\n  _proto.update = function update(event) {\n    var cue = this.cue;\n    var currentTime = this.player_.currentTime(); // vjs.log(currentTime, cue.startTime);\n\n    this.selected(cue.startTime <= currentTime && currentTime < cue.endTime);\n  };\n\n  return ChaptersTrackMenuItem;\n}(MenuItem);\n\nComponent$1.registerComponent('ChaptersTrackMenuItem', ChaptersTrackMenuItem);\n\n/**\n * The button component for toggling and selecting chapters\n * Chapters act much differently than other text tracks\n * Cues are navigation vs. other tracks of alternative languages\n *\n * @extends TextTrackButton\n */\n\nvar ChaptersButton = /*#__PURE__*/function (_TextTrackButton) {\n  _inheritsLoose(ChaptersButton, _TextTrackButton);\n\n  /**\n   * Creates an instance of this class.\n   *\n   * @param {Player} player\n   *        The `Player` that this class should be attached to.\n   *\n   * @param {Object} [options]\n   *        The key/value store of player options.\n   *\n   * @param {Component~ReadyCallback} [ready]\n   *        The function to call when this function is ready.\n   */\n  function ChaptersButton(player, options, ready) {\n    return _TextTrackButton.call(this, player, options, ready) || this;\n  }\n  /**\n   * Builds the default DOM `className`.\n   *\n   * @return {string}\n   *         The DOM `className` for this object.\n   */\n\n\n  var _proto = ChaptersButton.prototype;\n\n  _proto.buildCSSClass = function buildCSSClass() {\n    return \"vjs-chapters-button \" + _TextTrackButton.prototype.buildCSSClass.call(this);\n  };\n\n  _proto.buildWrapperCSSClass = function buildWrapperCSSClass() {\n    return \"vjs-chapters-button \" + _TextTrackButton.prototype.buildWrapperCSSClass.call(this);\n  }\n  /**\n   * Update the menu based on the current state of its items.\n   *\n   * @param {EventTarget~Event} [event]\n   *        An event that triggered this function to run.\n   *\n   * @listens TextTrackList#addtrack\n   * @listens TextTrackList#removetrack\n   * @listens TextTrackList#change\n   */\n  ;\n\n  _proto.update = function update(event) {\n    if (!this.track_ || event && (event.type === 'addtrack' || event.type === 'removetrack')) {\n      this.setTrack(this.findChaptersTrack());\n    }\n\n    _TextTrackButton.prototype.update.call(this);\n  }\n  /**\n   * Set the currently selected track for the chapters button.\n   *\n   * @param {TextTrack} track\n   *        The new track to select. Nothing will change if this is the currently selected\n   *        track.\n   */\n  ;\n\n  _proto.setTrack = function setTrack(track) {\n    if (this.track_ === track) {\n      return;\n    }\n\n    if (!this.updateHandler_) {\n      this.updateHandler_ = this.update.bind(this);\n    } // here this.track_ refers to the old track instance\n\n\n    if (this.track_) {\n      var remoteTextTrackEl = this.player_.remoteTextTrackEls().getTrackElementByTrack_(this.track_);\n\n      if (remoteTextTrackEl) {\n        remoteTextTrackEl.removeEventListener('load', this.updateHandler_);\n      }\n\n      this.track_ = null;\n    }\n\n    this.track_ = track; // here this.track_ refers to the new track instance\n\n    if (this.track_) {\n      this.track_.mode = 'hidden';\n\n      var _remoteTextTrackEl = this.player_.remoteTextTrackEls().getTrackElementByTrack_(this.track_);\n\n      if (_remoteTextTrackEl) {\n        _remoteTextTrackEl.addEventListener('load', this.updateHandler_);\n      }\n    }\n  }\n  /**\n   * Find the track object that is currently in use by this ChaptersButton\n   *\n   * @return {TextTrack|undefined}\n   *         The current track or undefined if none was found.\n   */\n  ;\n\n  _proto.findChaptersTrack = function findChaptersTrack() {\n    var tracks = this.player_.textTracks() || [];\n\n    for (var i = tracks.length - 1; i >= 0; i--) {\n      // We will always choose the last track as our chaptersTrack\n      var track = tracks[i];\n\n      if (track.kind === this.kind_) {\n        return track;\n      }\n    }\n  }\n  /**\n   * Get the caption for the ChaptersButton based on the track label. This will also\n   * use the current tracks localized kind as a fallback if a label does not exist.\n   *\n   * @return {string}\n   *         The tracks current label or the localized track kind.\n   */\n  ;\n\n  _proto.getMenuCaption = function getMenuCaption() {\n    if (this.track_ && this.track_.label) {\n      return this.track_.label;\n    }\n\n    return this.localize(toTitleCase$1(this.kind_));\n  }\n  /**\n   * Create menu from chapter track\n   *\n   * @return {Menu}\n   *         New menu for the chapter buttons\n   */\n  ;\n\n  _proto.createMenu = function createMenu() {\n    this.options_.title = this.getMenuCaption();\n    return _TextTrackButton.prototype.createMenu.call(this);\n  }\n  /**\n   * Create a menu item for each text track\n   *\n   * @return {TextTrackMenuItem[]}\n   *         Array of menu items\n   */\n  ;\n\n  _proto.createItems = function createItems() {\n    var items = [];\n\n    if (!this.track_) {\n      return items;\n    }\n\n    var cues = this.track_.cues;\n\n    if (!cues) {\n      return items;\n    }\n\n    for (var i = 0, l = cues.length; i < l; i++) {\n      var cue = cues[i];\n      var mi = new ChaptersTrackMenuItem(this.player_, {\n        track: this.track_,\n        cue: cue\n      });\n      items.push(mi);\n    }\n\n    return items;\n  };\n\n  return ChaptersButton;\n}(TextTrackButton);\n/**\n * `kind` of TextTrack to look for to associate it with this menu.\n *\n * @type {string}\n * @private\n */\n\n\nChaptersButton.prototype.kind_ = 'chapters';\n/**\n * The text that should display over the `ChaptersButton`s controls. Added for localization.\n *\n * @type {string}\n * @private\n */\n\nChaptersButton.prototype.controlText_ = 'Chapters';\nComponent$1.registerComponent('ChaptersButton', ChaptersButton);\n\n/**\n * The button component for toggling and selecting descriptions\n *\n * @extends TextTrackButton\n */\n\nvar DescriptionsButton = /*#__PURE__*/function (_TextTrackButton) {\n  _inheritsLoose(DescriptionsButton, _TextTrackButton);\n\n  /**\n   * Creates an instance of this class.\n   *\n   * @param {Player} player\n   *        The `Player` that this class should be attached to.\n   *\n   * @param {Object} [options]\n   *        The key/value store of player options.\n   *\n   * @param {Component~ReadyCallback} [ready]\n   *        The function to call when this component is ready.\n   */\n  function DescriptionsButton(player, options, ready) {\n    var _this;\n\n    _this = _TextTrackButton.call(this, player, options, ready) || this;\n    var tracks = player.textTracks();\n    var changeHandler = bind(_assertThisInitialized(_this), _this.handleTracksChange);\n    tracks.addEventListener('change', changeHandler);\n\n    _this.on('dispose', function () {\n      tracks.removeEventListener('change', changeHandler);\n    });\n\n    return _this;\n  }\n  /**\n   * Handle text track change\n   *\n   * @param {EventTarget~Event} event\n   *        The event that caused this function to run\n   *\n   * @listens TextTrackList#change\n   */\n\n\n  var _proto = DescriptionsButton.prototype;\n\n  _proto.handleTracksChange = function handleTracksChange(event) {\n    var tracks = this.player().textTracks();\n    var disabled = false; // Check whether a track of a different kind is showing\n\n    for (var i = 0, l = tracks.length; i < l; i++) {\n      var track = tracks[i];\n\n      if (track.kind !== this.kind_ && track.mode === 'showing') {\n        disabled = true;\n        break;\n      }\n    } // If another track is showing, disable this menu button\n\n\n    if (disabled) {\n      this.disable();\n    } else {\n      this.enable();\n    }\n  }\n  /**\n   * Builds the default DOM `className`.\n   *\n   * @return {string}\n   *         The DOM `className` for this object.\n   */\n  ;\n\n  _proto.buildCSSClass = function buildCSSClass() {\n    return \"vjs-descriptions-button \" + _TextTrackButton.prototype.buildCSSClass.call(this);\n  };\n\n  _proto.buildWrapperCSSClass = function buildWrapperCSSClass() {\n    return \"vjs-descriptions-button \" + _TextTrackButton.prototype.buildWrapperCSSClass.call(this);\n  };\n\n  return DescriptionsButton;\n}(TextTrackButton);\n/**\n * `kind` of TextTrack to look for to associate it with this menu.\n *\n * @type {string}\n * @private\n */\n\n\nDescriptionsButton.prototype.kind_ = 'descriptions';\n/**\n * The text that should display over the `DescriptionsButton`s controls. Added for localization.\n *\n * @type {string}\n * @private\n */\n\nDescriptionsButton.prototype.controlText_ = 'Descriptions';\nComponent$1.registerComponent('DescriptionsButton', DescriptionsButton);\n\n/**\n * The button component for toggling and selecting subtitles\n *\n * @extends TextTrackButton\n */\n\nvar SubtitlesButton = /*#__PURE__*/function (_TextTrackButton) {\n  _inheritsLoose(SubtitlesButton, _TextTrackButton);\n\n  /**\n   * Creates an instance of this class.\n   *\n   * @param {Player} player\n   *        The `Player` that this class should be attached to.\n   *\n   * @param {Object} [options]\n   *        The key/value store of player options.\n   *\n   * @param {Component~ReadyCallback} [ready]\n   *        The function to call when this component is ready.\n   */\n  function SubtitlesButton(player, options, ready) {\n    return _TextTrackButton.call(this, player, options, ready) || this;\n  }\n  /**\n   * Builds the default DOM `className`.\n   *\n   * @return {string}\n   *         The DOM `className` for this object.\n   */\n\n\n  var _proto = SubtitlesButton.prototype;\n\n  _proto.buildCSSClass = function buildCSSClass() {\n    return \"vjs-subtitles-button \" + _TextTrackButton.prototype.buildCSSClass.call(this);\n  };\n\n  _proto.buildWrapperCSSClass = function buildWrapperCSSClass() {\n    return \"vjs-subtitles-button \" + _TextTrackButton.prototype.buildWrapperCSSClass.call(this);\n  };\n\n  return SubtitlesButton;\n}(TextTrackButton);\n/**\n * `kind` of TextTrack to look for to associate it with this menu.\n *\n * @type {string}\n * @private\n */\n\n\nSubtitlesButton.prototype.kind_ = 'subtitles';\n/**\n * The text that should display over the `SubtitlesButton`s controls. Added for localization.\n *\n * @type {string}\n * @private\n */\n\nSubtitlesButton.prototype.controlText_ = 'Subtitles';\nComponent$1.registerComponent('SubtitlesButton', SubtitlesButton);\n\n/**\n * The menu item for caption track settings menu\n *\n * @extends TextTrackMenuItem\n */\n\nvar CaptionSettingsMenuItem = /*#__PURE__*/function (_TextTrackMenuItem) {\n  _inheritsLoose(CaptionSettingsMenuItem, _TextTrackMenuItem);\n\n  /**\n   * Creates an instance of this class.\n   *\n   * @param {Player} player\n   *        The `Player` that this class should be attached to.\n   *\n   * @param {Object} [options]\n   *        The key/value store of player options.\n   */\n  function CaptionSettingsMenuItem(player, options) {\n    var _this;\n\n    options.track = {\n      player: player,\n      kind: options.kind,\n      label: options.kind + ' settings',\n      selectable: false,\n      \"default\": false,\n      mode: 'disabled'\n    }; // CaptionSettingsMenuItem has no concept of 'selected'\n\n    options.selectable = false;\n    options.name = 'CaptionSettingsMenuItem';\n    _this = _TextTrackMenuItem.call(this, player, options) || this;\n\n    _this.addClass('vjs-texttrack-settings');\n\n    _this.controlText(', opens ' + options.kind + ' settings dialog');\n\n    return _this;\n  }\n  /**\n   * This gets called when an `CaptionSettingsMenuItem` is \"clicked\". See\n   * {@link ClickableComponent} for more detailed information on what a click can be.\n   *\n   * @param {EventTarget~Event} [event]\n   *        The `keydown`, `tap`, or `click` event that caused this function to be\n   *        called.\n   *\n   * @listens tap\n   * @listens click\n   */\n\n\n  var _proto = CaptionSettingsMenuItem.prototype;\n\n  _proto.handleClick = function handleClick(event) {\n    this.player().getChild('textTrackSettings').open();\n  };\n\n  return CaptionSettingsMenuItem;\n}(TextTrackMenuItem);\n\nComponent$1.registerComponent('CaptionSettingsMenuItem', CaptionSettingsMenuItem);\n\n/**\n * The button component for toggling and selecting captions\n *\n * @extends TextTrackButton\n */\n\nvar CaptionsButton = /*#__PURE__*/function (_TextTrackButton) {\n  _inheritsLoose(CaptionsButton, _TextTrackButton);\n\n  /**\n   * Creates an instance of this class.\n   *\n   * @param {Player} player\n   *        The `Player` that this class should be attached to.\n   *\n   * @param {Object} [options]\n   *        The key/value store of player options.\n   *\n   * @param {Component~ReadyCallback} [ready]\n   *        The function to call when this component is ready.\n   */\n  function CaptionsButton(player, options, ready) {\n    return _TextTrackButton.call(this, player, options, ready) || this;\n  }\n  /**\n   * Builds the default DOM `className`.\n   *\n   * @return {string}\n   *         The DOM `className` for this object.\n   */\n\n\n  var _proto = CaptionsButton.prototype;\n\n  _proto.buildCSSClass = function buildCSSClass() {\n    return \"vjs-captions-button \" + _TextTrackButton.prototype.buildCSSClass.call(this);\n  };\n\n  _proto.buildWrapperCSSClass = function buildWrapperCSSClass() {\n    return \"vjs-captions-button \" + _TextTrackButton.prototype.buildWrapperCSSClass.call(this);\n  }\n  /**\n   * Create caption menu items\n   *\n   * @return {CaptionSettingsMenuItem[]}\n   *         The array of current menu items.\n   */\n  ;\n\n  _proto.createItems = function createItems() {\n    var items = [];\n\n    if (!(this.player().tech_ && this.player().tech_.featuresNativeTextTracks) && this.player().getChild('textTrackSettings')) {\n      items.push(new CaptionSettingsMenuItem(this.player_, {\n        kind: this.kind_\n      }));\n      this.hideThreshold_ += 1;\n    }\n\n    return _TextTrackButton.prototype.createItems.call(this, items);\n  };\n\n  return CaptionsButton;\n}(TextTrackButton);\n/**\n * `kind` of TextTrack to look for to associate it with this menu.\n *\n * @type {string}\n * @private\n */\n\n\nCaptionsButton.prototype.kind_ = 'captions';\n/**\n * The text that should display over the `CaptionsButton`s controls. Added for localization.\n *\n * @type {string}\n * @private\n */\n\nCaptionsButton.prototype.controlText_ = 'Captions';\nComponent$1.registerComponent('CaptionsButton', CaptionsButton);\n\n/**\n * SubsCapsMenuItem has an [cc] icon to distinguish captions from subtitles\n * in the SubsCapsMenu.\n *\n * @extends TextTrackMenuItem\n */\n\nvar SubsCapsMenuItem = /*#__PURE__*/function (_TextTrackMenuItem) {\n  _inheritsLoose(SubsCapsMenuItem, _TextTrackMenuItem);\n\n  function SubsCapsMenuItem() {\n    return _TextTrackMenuItem.apply(this, arguments) || this;\n  }\n\n  var _proto = SubsCapsMenuItem.prototype;\n\n  _proto.createEl = function createEl$1(type, props, attrs) {\n    var el = _TextTrackMenuItem.prototype.createEl.call(this, type, props, attrs);\n\n    var parentSpan = el.querySelector('.vjs-menu-item-text');\n\n    if (this.options_.track.kind === 'captions') {\n      parentSpan.appendChild(createEl('span', {\n        className: 'vjs-icon-placeholder'\n      }, {\n        'aria-hidden': true\n      }));\n      parentSpan.appendChild(createEl('span', {\n        className: 'vjs-control-text',\n        // space added as the text will visually flow with the\n        // label\n        textContent: \" \" + this.localize('Captions')\n      }));\n    }\n\n    return el;\n  };\n\n  return SubsCapsMenuItem;\n}(TextTrackMenuItem);\n\nComponent$1.registerComponent('SubsCapsMenuItem', SubsCapsMenuItem);\n\n/**\n * The button component for toggling and selecting captions and/or subtitles\n *\n * @extends TextTrackButton\n */\n\nvar SubsCapsButton = /*#__PURE__*/function (_TextTrackButton) {\n  _inheritsLoose(SubsCapsButton, _TextTrackButton);\n\n  function SubsCapsButton(player, options) {\n    var _this;\n\n    if (options === void 0) {\n      options = {};\n    }\n\n    _this = _TextTrackButton.call(this, player, options) || this; // Although North America uses \"captions\" in most cases for\n    // \"captions and subtitles\" other locales use \"subtitles\"\n\n    _this.label_ = 'subtitles';\n\n    if (['en', 'en-us', 'en-ca', 'fr-ca'].indexOf(_this.player_.language_) > -1) {\n      _this.label_ = 'captions';\n    }\n\n    _this.menuButton_.controlText(toTitleCase$1(_this.label_));\n\n    return _this;\n  }\n  /**\n   * Builds the default DOM `className`.\n   *\n   * @return {string}\n   *         The DOM `className` for this object.\n   */\n\n\n  var _proto = SubsCapsButton.prototype;\n\n  _proto.buildCSSClass = function buildCSSClass() {\n    return \"vjs-subs-caps-button \" + _TextTrackButton.prototype.buildCSSClass.call(this);\n  };\n\n  _proto.buildWrapperCSSClass = function buildWrapperCSSClass() {\n    return \"vjs-subs-caps-button \" + _TextTrackButton.prototype.buildWrapperCSSClass.call(this);\n  }\n  /**\n   * Create caption/subtitles menu items\n   *\n   * @return {CaptionSettingsMenuItem[]}\n   *         The array of current menu items.\n   */\n  ;\n\n  _proto.createItems = function createItems() {\n    var items = [];\n\n    if (!(this.player().tech_ && this.player().tech_.featuresNativeTextTracks) && this.player().getChild('textTrackSettings')) {\n      items.push(new CaptionSettingsMenuItem(this.player_, {\n        kind: this.label_\n      }));\n      this.hideThreshold_ += 1;\n    }\n\n    items = _TextTrackButton.prototype.createItems.call(this, items, SubsCapsMenuItem);\n    return items;\n  };\n\n  return SubsCapsButton;\n}(TextTrackButton);\n/**\n * `kind`s of TextTrack to look for to associate it with this menu.\n *\n * @type {array}\n * @private\n */\n\n\nSubsCapsButton.prototype.kinds_ = ['captions', 'subtitles'];\n/**\n * The text that should display over the `SubsCapsButton`s controls.\n *\n *\n * @type {string}\n * @private\n */\n\nSubsCapsButton.prototype.controlText_ = 'Subtitles';\nComponent$1.registerComponent('SubsCapsButton', SubsCapsButton);\n\n/**\n * An {@link AudioTrack} {@link MenuItem}\n *\n * @extends MenuItem\n */\n\nvar AudioTrackMenuItem = /*#__PURE__*/function (_MenuItem) {\n  _inheritsLoose(AudioTrackMenuItem, _MenuItem);\n\n  /**\n   * Creates an instance of this class.\n   *\n   * @param {Player} player\n   *        The `Player` that this class should be attached to.\n   *\n   * @param {Object} [options]\n   *        The key/value store of player options.\n   */\n  function AudioTrackMenuItem(player, options) {\n    var _this;\n\n    var track = options.track;\n    var tracks = player.audioTracks(); // Modify options for parent MenuItem class's init.\n\n    options.label = track.label || track.language || 'Unknown';\n    options.selected = track.enabled;\n    _this = _MenuItem.call(this, player, options) || this;\n    _this.track = track;\n\n    _this.addClass(\"vjs-\" + track.kind + \"-menu-item\");\n\n    var changeHandler = function changeHandler() {\n      for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {\n        args[_key] = arguments[_key];\n      }\n\n      _this.handleTracksChange.apply(_assertThisInitialized(_this), args);\n    };\n\n    tracks.addEventListener('change', changeHandler);\n\n    _this.on('dispose', function () {\n      tracks.removeEventListener('change', changeHandler);\n    });\n\n    return _this;\n  }\n\n  var _proto = AudioTrackMenuItem.prototype;\n\n  _proto.createEl = function createEl(type, props, attrs) {\n    var el = _MenuItem.prototype.createEl.call(this, type, props, attrs);\n\n    var parentSpan = el.querySelector('.vjs-menu-item-text');\n\n    if (this.options_.track.kind === 'main-desc') {\n      parentSpan.appendChild(_MenuItem.prototype.createEl.call(this, 'span', {\n        className: 'vjs-icon-placeholder'\n      }, {\n        'aria-hidden': true\n      }));\n      parentSpan.appendChild(_MenuItem.prototype.createEl.call(this, 'span', {\n        className: 'vjs-control-text',\n        textContent: this.localize('Descriptions')\n      }));\n    }\n\n    return el;\n  }\n  /**\n   * This gets called when an `AudioTrackMenuItem is \"clicked\". See {@link ClickableComponent}\n   * for more detailed information on what a click can be.\n   *\n   * @param {EventTarget~Event} [event]\n   *        The `keydown`, `tap`, or `click` event that caused this function to be\n   *        called.\n   *\n   * @listens tap\n   * @listens click\n   */\n  ;\n\n  _proto.handleClick = function handleClick(event) {\n    _MenuItem.prototype.handleClick.call(this, event); // the audio track list will automatically toggle other tracks\n    // off for us.\n\n\n    this.track.enabled = true;\n  }\n  /**\n   * Handle any {@link AudioTrack} change.\n   *\n   * @param {EventTarget~Event} [event]\n   *        The {@link AudioTrackList#change} event that caused this to run.\n   *\n   * @listens AudioTrackList#change\n   */\n  ;\n\n  _proto.handleTracksChange = function handleTracksChange(event) {\n    this.selected(this.track.enabled);\n  };\n\n  return AudioTrackMenuItem;\n}(MenuItem);\n\nComponent$1.registerComponent('AudioTrackMenuItem', AudioTrackMenuItem);\n\n/**\n * The base class for buttons that toggle specific {@link AudioTrack} types.\n *\n * @extends TrackButton\n */\n\nvar AudioTrackButton = /*#__PURE__*/function (_TrackButton) {\n  _inheritsLoose(AudioTrackButton, _TrackButton);\n\n  /**\n   * Creates an instance of this class.\n   *\n   * @param {Player} player\n   *        The `Player` that this class should be attached to.\n   *\n   * @param {Object} [options={}]\n   *        The key/value store of player options.\n   */\n  function AudioTrackButton(player, options) {\n    if (options === void 0) {\n      options = {};\n    }\n\n    options.tracks = player.audioTracks();\n    return _TrackButton.call(this, player, options) || this;\n  }\n  /**\n   * Builds the default DOM `className`.\n   *\n   * @return {string}\n   *         The DOM `className` for this object.\n   */\n\n\n  var _proto = AudioTrackButton.prototype;\n\n  _proto.buildCSSClass = function buildCSSClass() {\n    return \"vjs-audio-button \" + _TrackButton.prototype.buildCSSClass.call(this);\n  };\n\n  _proto.buildWrapperCSSClass = function buildWrapperCSSClass() {\n    return \"vjs-audio-button \" + _TrackButton.prototype.buildWrapperCSSClass.call(this);\n  }\n  /**\n   * Create a menu item for each audio track\n   *\n   * @param {AudioTrackMenuItem[]} [items=[]]\n   *        An array of existing menu items to use.\n   *\n   * @return {AudioTrackMenuItem[]}\n   *         An array of menu items\n   */\n  ;\n\n  _proto.createItems = function createItems(items) {\n    if (items === void 0) {\n      items = [];\n    }\n\n    // if there's only one audio track, there no point in showing it\n    this.hideThreshold_ = 1;\n    var tracks = this.player_.audioTracks();\n\n    for (var i = 0; i < tracks.length; i++) {\n      var track = tracks[i];\n      items.push(new AudioTrackMenuItem(this.player_, {\n        track: track,\n        // MenuItem is selectable\n        selectable: true,\n        // MenuItem is NOT multiSelectable (i.e. only one can be marked \"selected\" at a time)\n        multiSelectable: false\n      }));\n    }\n\n    return items;\n  };\n\n  return AudioTrackButton;\n}(TrackButton);\n/**\n * The text that should display over the `AudioTrackButton`s controls. Added for localization.\n *\n * @type {string}\n * @private\n */\n\n\nAudioTrackButton.prototype.controlText_ = 'Audio Track';\nComponent$1.registerComponent('AudioTrackButton', AudioTrackButton);\n\n/**\n * The specific menu item type for selecting a playback rate.\n *\n * @extends MenuItem\n */\n\nvar PlaybackRateMenuItem = /*#__PURE__*/function (_MenuItem) {\n  _inheritsLoose(PlaybackRateMenuItem, _MenuItem);\n\n  /**\n   * Creates an instance of this class.\n   *\n   * @param {Player} player\n   *        The `Player` that this class should be attached to.\n   *\n   * @param {Object} [options]\n   *        The key/value store of player options.\n   */\n  function PlaybackRateMenuItem(player, options) {\n    var _this;\n\n    var label = options.rate;\n    var rate = parseFloat(label, 10); // Modify options for parent MenuItem class's init.\n\n    options.label = label;\n    options.selected = rate === player.playbackRate();\n    options.selectable = true;\n    options.multiSelectable = false;\n    _this = _MenuItem.call(this, player, options) || this;\n    _this.label = label;\n    _this.rate = rate;\n\n    _this.on(player, 'ratechange', function (e) {\n      return _this.update(e);\n    });\n\n    return _this;\n  }\n  /**\n   * This gets called when an `PlaybackRateMenuItem` is \"clicked\". See\n   * {@link ClickableComponent} for more detailed information on what a click can be.\n   *\n   * @param {EventTarget~Event} [event]\n   *        The `keydown`, `tap`, or `click` event that caused this function to be\n   *        called.\n   *\n   * @listens tap\n   * @listens click\n   */\n\n\n  var _proto = PlaybackRateMenuItem.prototype;\n\n  _proto.handleClick = function handleClick(event) {\n    _MenuItem.prototype.handleClick.call(this);\n\n    this.player().playbackRate(this.rate);\n  }\n  /**\n   * Update the PlaybackRateMenuItem when the playbackrate changes.\n   *\n   * @param {EventTarget~Event} [event]\n   *        The `ratechange` event that caused this function to run.\n   *\n   * @listens Player#ratechange\n   */\n  ;\n\n  _proto.update = function update(event) {\n    this.selected(this.player().playbackRate() === this.rate);\n  };\n\n  return PlaybackRateMenuItem;\n}(MenuItem);\n/**\n * The text that should display over the `PlaybackRateMenuItem`s controls. Added for localization.\n *\n * @type {string}\n * @private\n */\n\n\nPlaybackRateMenuItem.prototype.contentElType = 'button';\nComponent$1.registerComponent('PlaybackRateMenuItem', PlaybackRateMenuItem);\n\n/**\n * The component for controlling the playback rate.\n *\n * @extends MenuButton\n */\n\nvar PlaybackRateMenuButton = /*#__PURE__*/function (_MenuButton) {\n  _inheritsLoose(PlaybackRateMenuButton, _MenuButton);\n\n  /**\n   * Creates an instance of this class.\n   *\n   * @param {Player} player\n   *        The `Player` that this class should be attached to.\n   *\n   * @param {Object} [options]\n   *        The key/value store of player options.\n   */\n  function PlaybackRateMenuButton(player, options) {\n    var _this;\n\n    _this = _MenuButton.call(this, player, options) || this;\n\n    _this.menuButton_.el_.setAttribute('aria-describedby', _this.labelElId_);\n\n    _this.updateVisibility();\n\n    _this.updateLabel();\n\n    _this.on(player, 'loadstart', function (e) {\n      return _this.updateVisibility(e);\n    });\n\n    _this.on(player, 'ratechange', function (e) {\n      return _this.updateLabel(e);\n    });\n\n    _this.on(player, 'playbackrateschange', function (e) {\n      return _this.handlePlaybackRateschange(e);\n    });\n\n    return _this;\n  }\n  /**\n   * Create the `Component`'s DOM element\n   *\n   * @return {Element}\n   *         The element that was created.\n   */\n\n\n  var _proto = PlaybackRateMenuButton.prototype;\n\n  _proto.createEl = function createEl$1() {\n    var el = _MenuButton.prototype.createEl.call(this);\n\n    this.labelElId_ = 'vjs-playback-rate-value-label-' + this.id_;\n    this.labelEl_ = createEl('div', {\n      className: 'vjs-playback-rate-value',\n      id: this.labelElId_,\n      textContent: '1x'\n    });\n    el.appendChild(this.labelEl_);\n    return el;\n  };\n\n  _proto.dispose = function dispose() {\n    this.labelEl_ = null;\n\n    _MenuButton.prototype.dispose.call(this);\n  }\n  /**\n   * Builds the default DOM `className`.\n   *\n   * @return {string}\n   *         The DOM `className` for this object.\n   */\n  ;\n\n  _proto.buildCSSClass = function buildCSSClass() {\n    return \"vjs-playback-rate \" + _MenuButton.prototype.buildCSSClass.call(this);\n  };\n\n  _proto.buildWrapperCSSClass = function buildWrapperCSSClass() {\n    return \"vjs-playback-rate \" + _MenuButton.prototype.buildWrapperCSSClass.call(this);\n  }\n  /**\n   * Create the list of menu items. Specific to each subclass.\n   *\n   */\n  ;\n\n  _proto.createItems = function createItems() {\n    var rates = this.playbackRates();\n    var items = [];\n\n    for (var i = rates.length - 1; i >= 0; i--) {\n      items.push(new PlaybackRateMenuItem(this.player(), {\n        rate: rates[i] + 'x'\n      }));\n    }\n\n    return items;\n  }\n  /**\n   * Updates ARIA accessibility attributes\n   */\n  ;\n\n  _proto.updateARIAAttributes = function updateARIAAttributes() {\n    // Current playback rate\n    this.el().setAttribute('aria-valuenow', this.player().playbackRate());\n  }\n  /**\n   * This gets called when an `PlaybackRateMenuButton` is \"clicked\". See\n   * {@link ClickableComponent} for more detailed information on what a click can be.\n   *\n   * @param {EventTarget~Event} [event]\n   *        The `keydown`, `tap`, or `click` event that caused this function to be\n   *        called.\n   *\n   * @listens tap\n   * @listens click\n   */\n  ;\n\n  _proto.handleClick = function handleClick(event) {\n    // select next rate option\n    var currentRate = this.player().playbackRate();\n    var rates = this.playbackRates(); // this will select first one if the last one currently selected\n\n    var newRate = rates[0];\n\n    for (var i = 0; i < rates.length; i++) {\n      if (rates[i] > currentRate) {\n        newRate = rates[i];\n        break;\n      }\n    }\n\n    this.player().playbackRate(newRate);\n  }\n  /**\n   * On playbackrateschange, update the menu to account for the new items.\n   *\n   * @listens Player#playbackrateschange\n   */\n  ;\n\n  _proto.handlePlaybackRateschange = function handlePlaybackRateschange(event) {\n    this.update();\n  }\n  /**\n   * Get possible playback rates\n   *\n   * @return {Array}\n   *         All possible playback rates\n   */\n  ;\n\n  _proto.playbackRates = function playbackRates() {\n    var player = this.player();\n    return player.playbackRates && player.playbackRates() || [];\n  }\n  /**\n   * Get whether playback rates is supported by the tech\n   * and an array of playback rates exists\n   *\n   * @return {boolean}\n   *         Whether changing playback rate is supported\n   */\n  ;\n\n  _proto.playbackRateSupported = function playbackRateSupported() {\n    return this.player().tech_ && this.player().tech_.featuresPlaybackRate && this.playbackRates() && this.playbackRates().length > 0;\n  }\n  /**\n   * Hide playback rate controls when they're no playback rate options to select\n   *\n   * @param {EventTarget~Event} [event]\n   *        The event that caused this function to run.\n   *\n   * @listens Player#loadstart\n   */\n  ;\n\n  _proto.updateVisibility = function updateVisibility(event) {\n    if (this.playbackRateSupported()) {\n      this.removeClass('vjs-hidden');\n    } else {\n      this.addClass('vjs-hidden');\n    }\n  }\n  /**\n   * Update button label when rate changed\n   *\n   * @param {EventTarget~Event} [event]\n   *        The event that caused this function to run.\n   *\n   * @listens Player#ratechange\n   */\n  ;\n\n  _proto.updateLabel = function updateLabel(event) {\n    if (this.playbackRateSupported()) {\n      this.labelEl_.textContent = this.player().playbackRate() + 'x';\n    }\n  };\n\n  return PlaybackRateMenuButton;\n}(MenuButton);\n/**\n * The text that should display over the `FullscreenToggle`s controls. Added for localization.\n *\n * @type {string}\n * @private\n */\n\n\nPlaybackRateMenuButton.prototype.controlText_ = 'Playback Rate';\nComponent$1.registerComponent('PlaybackRateMenuButton', PlaybackRateMenuButton);\n\n/**\n * Just an empty spacer element that can be used as an append point for plugins, etc.\n * Also can be used to create space between elements when necessary.\n *\n * @extends Component\n */\n\nvar Spacer = /*#__PURE__*/function (_Component) {\n  _inheritsLoose(Spacer, _Component);\n\n  function Spacer() {\n    return _Component.apply(this, arguments) || this;\n  }\n\n  var _proto = Spacer.prototype;\n\n  /**\n  * Builds the default DOM `className`.\n  *\n  * @return {string}\n  *         The DOM `className` for this object.\n  */\n  _proto.buildCSSClass = function buildCSSClass() {\n    return \"vjs-spacer \" + _Component.prototype.buildCSSClass.call(this);\n  }\n  /**\n   * Create the `Component`'s DOM element\n   *\n   * @return {Element}\n   *         The element that was created.\n   */\n  ;\n\n  _proto.createEl = function createEl(tag, props, attributes) {\n    if (tag === void 0) {\n      tag = 'div';\n    }\n\n    if (props === void 0) {\n      props = {};\n    }\n\n    if (attributes === void 0) {\n      attributes = {};\n    }\n\n    if (!props.className) {\n      props.className = this.buildCSSClass();\n    }\n\n    return _Component.prototype.createEl.call(this, tag, props, attributes);\n  };\n\n  return Spacer;\n}(Component$1);\n\nComponent$1.registerComponent('Spacer', Spacer);\n\n/**\n * Spacer specifically meant to be used as an insertion point for new plugins, etc.\n *\n * @extends Spacer\n */\n\nvar CustomControlSpacer = /*#__PURE__*/function (_Spacer) {\n  _inheritsLoose(CustomControlSpacer, _Spacer);\n\n  function CustomControlSpacer() {\n    return _Spacer.apply(this, arguments) || this;\n  }\n\n  var _proto = CustomControlSpacer.prototype;\n\n  /**\n   * Builds the default DOM `className`.\n   *\n   * @return {string}\n   *         The DOM `className` for this object.\n   */\n  _proto.buildCSSClass = function buildCSSClass() {\n    return \"vjs-custom-control-spacer \" + _Spacer.prototype.buildCSSClass.call(this);\n  }\n  /**\n   * Create the `Component`'s DOM element\n   *\n   * @return {Element}\n   *         The element that was created.\n   */\n  ;\n\n  _proto.createEl = function createEl() {\n    return _Spacer.prototype.createEl.call(this, 'div', {\n      className: this.buildCSSClass(),\n      // No-flex/table-cell mode requires there be some content\n      // in the cell to fill the remaining space of the table.\n      textContent: \"\\xA0\"\n    });\n  };\n\n  return CustomControlSpacer;\n}(Spacer);\n\nComponent$1.registerComponent('CustomControlSpacer', CustomControlSpacer);\n\n/**\n * Container of main controls.\n *\n * @extends Component\n */\n\nvar ControlBar = /*#__PURE__*/function (_Component) {\n  _inheritsLoose(ControlBar, _Component);\n\n  function ControlBar() {\n    return _Component.apply(this, arguments) || this;\n  }\n\n  var _proto = ControlBar.prototype;\n\n  /**\n   * Create the `Component`'s DOM element\n   *\n   * @return {Element}\n   *         The element that was created.\n   */\n  _proto.createEl = function createEl() {\n    return _Component.prototype.createEl.call(this, 'div', {\n      className: 'vjs-control-bar',\n      dir: 'ltr'\n    });\n  };\n\n  return ControlBar;\n}(Component$1);\n/**\n * Default options for `ControlBar`\n *\n * @type {Object}\n * @private\n */\n\n\nControlBar.prototype.options_ = {\n  children: ['playToggle', 'volumePanel', 'currentTimeDisplay', 'timeDivider', 'durationDisplay', 'progressControl', 'liveDisplay', 'seekToLive', 'remainingTimeDisplay', 'customControlSpacer', 'playbackRateMenuButton', 'chaptersButton', 'descriptionsButton', 'subsCapsButton', 'audioTrackButton', 'fullscreenToggle']\n};\n\nif ('exitPictureInPicture' in document) {\n  ControlBar.prototype.options_.children.splice(ControlBar.prototype.options_.children.length - 1, 0, 'pictureInPictureToggle');\n}\n\nComponent$1.registerComponent('ControlBar', ControlBar);\n\n/**\n * A display that indicates an error has occurred. This means that the video\n * is unplayable.\n *\n * @extends ModalDialog\n */\n\nvar ErrorDisplay = /*#__PURE__*/function (_ModalDialog) {\n  _inheritsLoose(ErrorDisplay, _ModalDialog);\n\n  /**\n   * Creates an instance of this class.\n   *\n   * @param  {Player} player\n   *         The `Player` that this class should be attached to.\n   *\n   * @param  {Object} [options]\n   *         The key/value store of player options.\n   */\n  function ErrorDisplay(player, options) {\n    var _this;\n\n    _this = _ModalDialog.call(this, player, options) || this;\n\n    _this.on(player, 'error', function (e) {\n      return _this.open(e);\n    });\n\n    return _this;\n  }\n  /**\n   * Builds the default DOM `className`.\n   *\n   * @return {string}\n   *         The DOM `className` for this object.\n   *\n   * @deprecated Since version 5.\n   */\n\n\n  var _proto = ErrorDisplay.prototype;\n\n  _proto.buildCSSClass = function buildCSSClass() {\n    return \"vjs-error-display \" + _ModalDialog.prototype.buildCSSClass.call(this);\n  }\n  /**\n   * Gets the localized error message based on the `Player`s error.\n   *\n   * @return {string}\n   *         The `Player`s error message localized or an empty string.\n   */\n  ;\n\n  _proto.content = function content() {\n    var error = this.player().error();\n    return error ? this.localize(error.message) : '';\n  };\n\n  return ErrorDisplay;\n}(ModalDialog);\n/**\n * The default options for an `ErrorDisplay`.\n *\n * @private\n */\n\n\nErrorDisplay.prototype.options_ = _extends({}, ModalDialog.prototype.options_, {\n  pauseOnOpen: false,\n  fillAlways: true,\n  temporary: false,\n  uncloseable: true\n});\nComponent$1.registerComponent('ErrorDisplay', ErrorDisplay);\n\nvar LOCAL_STORAGE_KEY$1 = 'vjs-text-track-settings';\nvar COLOR_BLACK = ['#000', 'Black'];\nvar COLOR_BLUE = ['#00F', 'Blue'];\nvar COLOR_CYAN = ['#0FF', 'Cyan'];\nvar COLOR_GREEN = ['#0F0', 'Green'];\nvar COLOR_MAGENTA = ['#F0F', 'Magenta'];\nvar COLOR_RED = ['#F00', 'Red'];\nvar COLOR_WHITE = ['#FFF', 'White'];\nvar COLOR_YELLOW = ['#FF0', 'Yellow'];\nvar OPACITY_OPAQUE = ['1', 'Opaque'];\nvar OPACITY_SEMI = ['0.5', 'Semi-Transparent'];\nvar OPACITY_TRANS = ['0', 'Transparent']; // Configuration for the various <select> elements in the DOM of this component.\n//\n// Possible keys include:\n//\n// `default`:\n//   The default option index. Only needs to be provided if not zero.\n// `parser`:\n//   A function which is used to parse the value from the selected option in\n//   a customized way.\n// `selector`:\n//   The selector used to find the associated <select> element.\n\nvar selectConfigs = {\n  backgroundColor: {\n    selector: '.vjs-bg-color > select',\n    id: 'captions-background-color-%s',\n    label: 'Color',\n    options: [COLOR_BLACK, COLOR_WHITE, COLOR_RED, COLOR_GREEN, COLOR_BLUE, COLOR_YELLOW, COLOR_MAGENTA, COLOR_CYAN]\n  },\n  backgroundOpacity: {\n    selector: '.vjs-bg-opacity > select',\n    id: 'captions-background-opacity-%s',\n    label: 'Transparency',\n    options: [OPACITY_OPAQUE, OPACITY_SEMI, OPACITY_TRANS]\n  },\n  color: {\n    selector: '.vjs-fg-color > select',\n    id: 'captions-foreground-color-%s',\n    label: 'Color',\n    options: [COLOR_WHITE, COLOR_BLACK, COLOR_RED, COLOR_GREEN, COLOR_BLUE, COLOR_YELLOW, COLOR_MAGENTA, COLOR_CYAN]\n  },\n  edgeStyle: {\n    selector: '.vjs-edge-style > select',\n    id: '%s',\n    label: 'Text Edge Style',\n    options: [['none', 'None'], ['raised', 'Raised'], ['depressed', 'Depressed'], ['uniform', 'Uniform'], ['dropshadow', 'Dropshadow']]\n  },\n  fontFamily: {\n    selector: '.vjs-font-family > select',\n    id: 'captions-font-family-%s',\n    label: 'Font Family',\n    options: [['proportionalSansSerif', 'Proportional Sans-Serif'], ['monospaceSansSerif', 'Monospace Sans-Serif'], ['proportionalSerif', 'Proportional Serif'], ['monospaceSerif', 'Monospace Serif'], ['casual', 'Casual'], ['script', 'Script'], ['small-caps', 'Small Caps']]\n  },\n  fontPercent: {\n    selector: '.vjs-font-percent > select',\n    id: 'captions-font-size-%s',\n    label: 'Font Size',\n    options: [['0.50', '50%'], ['0.75', '75%'], ['1.00', '100%'], ['1.25', '125%'], ['1.50', '150%'], ['1.75', '175%'], ['2.00', '200%'], ['3.00', '300%'], ['4.00', '400%']],\n    \"default\": 2,\n    parser: function parser(v) {\n      return v === '1.00' ? null : Number(v);\n    }\n  },\n  textOpacity: {\n    selector: '.vjs-text-opacity > select',\n    id: 'captions-foreground-opacity-%s',\n    label: 'Transparency',\n    options: [OPACITY_OPAQUE, OPACITY_SEMI]\n  },\n  // Options for this object are defined below.\n  windowColor: {\n    selector: '.vjs-window-color > select',\n    id: 'captions-window-color-%s',\n    label: 'Color'\n  },\n  // Options for this object are defined below.\n  windowOpacity: {\n    selector: '.vjs-window-opacity > select',\n    id: 'captions-window-opacity-%s',\n    label: 'Transparency',\n    options: [OPACITY_TRANS, OPACITY_SEMI, OPACITY_OPAQUE]\n  }\n};\nselectConfigs.windowColor.options = selectConfigs.backgroundColor.options;\n/**\n * Get the actual value of an option.\n *\n * @param  {string} value\n *         The value to get\n *\n * @param  {Function} [parser]\n *         Optional function to adjust the value.\n *\n * @return {Mixed}\n *         - Will be `undefined` if no value exists\n *         - Will be `undefined` if the given value is \"none\".\n *         - Will be the actual value otherwise.\n *\n * @private\n */\n\nfunction parseOptionValue(value, parser) {\n  if (parser) {\n    value = parser(value);\n  }\n\n  if (value && value !== 'none') {\n    return value;\n  }\n}\n/**\n * Gets the value of the selected <option> element within a <select> element.\n *\n * @param  {Element} el\n *         the element to look in\n *\n * @param  {Function} [parser]\n *         Optional function to adjust the value.\n *\n * @return {Mixed}\n *         - Will be `undefined` if no value exists\n *         - Will be `undefined` if the given value is \"none\".\n *         - Will be the actual value otherwise.\n *\n * @private\n */\n\n\nfunction getSelectedOptionValue(el, parser) {\n  var value = el.options[el.options.selectedIndex].value;\n  return parseOptionValue(value, parser);\n}\n/**\n * Sets the selected <option> element within a <select> element based on a\n * given value.\n *\n * @param {Element} el\n *        The element to look in.\n *\n * @param {string} value\n *        the property to look on.\n *\n * @param {Function} [parser]\n *        Optional function to adjust the value before comparing.\n *\n * @private\n */\n\n\nfunction setSelectedOption(el, value, parser) {\n  if (!value) {\n    return;\n  }\n\n  for (var i = 0; i < el.options.length; i++) {\n    if (parseOptionValue(el.options[i].value, parser) === value) {\n      el.selectedIndex = i;\n      break;\n    }\n  }\n}\n/**\n * Manipulate Text Tracks settings.\n *\n * @extends ModalDialog\n */\n\n\nvar TextTrackSettings = /*#__PURE__*/function (_ModalDialog) {\n  _inheritsLoose(TextTrackSettings, _ModalDialog);\n\n  /**\n   * Creates an instance of this class.\n   *\n   * @param {Player} player\n   *         The `Player` that this class should be attached to.\n   *\n   * @param {Object} [options]\n   *         The key/value store of player options.\n   */\n  function TextTrackSettings(player, options) {\n    var _this;\n\n    options.temporary = false;\n    _this = _ModalDialog.call(this, player, options) || this;\n    _this.updateDisplay = _this.updateDisplay.bind(_assertThisInitialized(_this)); // fill the modal and pretend we have opened it\n\n    _this.fill();\n\n    _this.hasBeenOpened_ = _this.hasBeenFilled_ = true;\n    _this.endDialog = createEl('p', {\n      className: 'vjs-control-text',\n      textContent: _this.localize('End of dialog window.')\n    });\n\n    _this.el().appendChild(_this.endDialog);\n\n    _this.setDefaults(); // Grab `persistTextTrackSettings` from the player options if not passed in child options\n\n\n    if (options.persistTextTrackSettings === undefined) {\n      _this.options_.persistTextTrackSettings = _this.options_.playerOptions.persistTextTrackSettings;\n    }\n\n    _this.on(_this.$('.vjs-done-button'), 'click', function () {\n      _this.saveSettings();\n\n      _this.close();\n    });\n\n    _this.on(_this.$('.vjs-default-button'), 'click', function () {\n      _this.setDefaults();\n\n      _this.updateDisplay();\n    });\n\n    each(selectConfigs, function (config) {\n      _this.on(_this.$(config.selector), 'change', _this.updateDisplay);\n    });\n\n    if (_this.options_.persistTextTrackSettings) {\n      _this.restoreSettings();\n    }\n\n    return _this;\n  }\n\n  var _proto = TextTrackSettings.prototype;\n\n  _proto.dispose = function dispose() {\n    this.endDialog = null;\n\n    _ModalDialog.prototype.dispose.call(this);\n  }\n  /**\n   * Create a <select> element with configured options.\n   *\n   * @param {string} key\n   *        Configuration key to use during creation.\n   *\n   * @return {string}\n   *         An HTML string.\n   *\n   * @private\n   */\n  ;\n\n  _proto.createElSelect_ = function createElSelect_(key, legendId, type) {\n    var _this2 = this;\n\n    if (legendId === void 0) {\n      legendId = '';\n    }\n\n    if (type === void 0) {\n      type = 'label';\n    }\n\n    var config = selectConfigs[key];\n    var id = config.id.replace('%s', this.id_);\n    var selectLabelledbyIds = [legendId, id].join(' ').trim();\n    return [\"<\" + type + \" id=\\\"\" + id + \"\\\" class=\\\"\" + (type === 'label' ? 'vjs-label' : '') + \"\\\">\", this.localize(config.label), \"</\" + type + \">\", \"<select aria-labelledby=\\\"\" + selectLabelledbyIds + \"\\\">\"].concat(config.options.map(function (o) {\n      var optionId = id + '-' + o[1].replace(/\\W+/g, '');\n      return [\"<option id=\\\"\" + optionId + \"\\\" value=\\\"\" + o[0] + \"\\\" \", \"aria-labelledby=\\\"\" + selectLabelledbyIds + \" \" + optionId + \"\\\">\", _this2.localize(o[1]), '</option>'].join('');\n    })).concat('</select>').join('');\n  }\n  /**\n   * Create foreground color element for the component\n   *\n   * @return {string}\n   *         An HTML string.\n   *\n   * @private\n   */\n  ;\n\n  _proto.createElFgColor_ = function createElFgColor_() {\n    var legendId = \"captions-text-legend-\" + this.id_;\n    return ['<fieldset class=\"vjs-fg-color vjs-track-setting\">', \"<legend id=\\\"\" + legendId + \"\\\">\", this.localize('Text'), '</legend>', this.createElSelect_('color', legendId), '<span class=\"vjs-text-opacity vjs-opacity\">', this.createElSelect_('textOpacity', legendId), '</span>', '</fieldset>'].join('');\n  }\n  /**\n   * Create background color element for the component\n   *\n   * @return {string}\n   *         An HTML string.\n   *\n   * @private\n   */\n  ;\n\n  _proto.createElBgColor_ = function createElBgColor_() {\n    var legendId = \"captions-background-\" + this.id_;\n    return ['<fieldset class=\"vjs-bg-color vjs-track-setting\">', \"<legend id=\\\"\" + legendId + \"\\\">\", this.localize('Background'), '</legend>', this.createElSelect_('backgroundColor', legendId), '<span class=\"vjs-bg-opacity vjs-opacity\">', this.createElSelect_('backgroundOpacity', legendId), '</span>', '</fieldset>'].join('');\n  }\n  /**\n   * Create window color element for the component\n   *\n   * @return {string}\n   *         An HTML string.\n   *\n   * @private\n   */\n  ;\n\n  _proto.createElWinColor_ = function createElWinColor_() {\n    var legendId = \"captions-window-\" + this.id_;\n    return ['<fieldset class=\"vjs-window-color vjs-track-setting\">', \"<legend id=\\\"\" + legendId + \"\\\">\", this.localize('Window'), '</legend>', this.createElSelect_('windowColor', legendId), '<span class=\"vjs-window-opacity vjs-opacity\">', this.createElSelect_('windowOpacity', legendId), '</span>', '</fieldset>'].join('');\n  }\n  /**\n   * Create color elements for the component\n   *\n   * @return {Element}\n   *         The element that was created\n   *\n   * @private\n   */\n  ;\n\n  _proto.createElColors_ = function createElColors_() {\n    return createEl('div', {\n      className: 'vjs-track-settings-colors',\n      innerHTML: [this.createElFgColor_(), this.createElBgColor_(), this.createElWinColor_()].join('')\n    });\n  }\n  /**\n   * Create font elements for the component\n   *\n   * @return {Element}\n   *         The element that was created.\n   *\n   * @private\n   */\n  ;\n\n  _proto.createElFont_ = function createElFont_() {\n    return createEl('div', {\n      className: 'vjs-track-settings-font',\n      innerHTML: ['<fieldset class=\"vjs-font-percent vjs-track-setting\">', this.createElSelect_('fontPercent', '', 'legend'), '</fieldset>', '<fieldset class=\"vjs-edge-style vjs-track-setting\">', this.createElSelect_('edgeStyle', '', 'legend'), '</fieldset>', '<fieldset class=\"vjs-font-family vjs-track-setting\">', this.createElSelect_('fontFamily', '', 'legend'), '</fieldset>'].join('')\n    });\n  }\n  /**\n   * Create controls for the component\n   *\n   * @return {Element}\n   *         The element that was created.\n   *\n   * @private\n   */\n  ;\n\n  _proto.createElControls_ = function createElControls_() {\n    var defaultsDescription = this.localize('restore all settings to the default values');\n    return createEl('div', {\n      className: 'vjs-track-settings-controls',\n      innerHTML: [\"<button type=\\\"button\\\" class=\\\"vjs-default-button\\\" title=\\\"\" + defaultsDescription + \"\\\">\", this.localize('Reset'), \"<span class=\\\"vjs-control-text\\\"> \" + defaultsDescription + \"</span>\", '</button>', \"<button type=\\\"button\\\" class=\\\"vjs-done-button\\\">\" + this.localize('Done') + \"</button>\"].join('')\n    });\n  };\n\n  _proto.content = function content() {\n    return [this.createElColors_(), this.createElFont_(), this.createElControls_()];\n  };\n\n  _proto.label = function label() {\n    return this.localize('Caption Settings Dialog');\n  };\n\n  _proto.description = function description() {\n    return this.localize('Beginning of dialog window. Escape will cancel and close the window.');\n  };\n\n  _proto.buildCSSClass = function buildCSSClass() {\n    return _ModalDialog.prototype.buildCSSClass.call(this) + ' vjs-text-track-settings';\n  }\n  /**\n   * Gets an object of text track settings (or null).\n   *\n   * @return {Object}\n   *         An object with config values parsed from the DOM or localStorage.\n   */\n  ;\n\n  _proto.getValues = function getValues() {\n    var _this3 = this;\n\n    return reduce(selectConfigs, function (accum, config, key) {\n      var value = getSelectedOptionValue(_this3.$(config.selector), config.parser);\n\n      if (value !== undefined) {\n        accum[key] = value;\n      }\n\n      return accum;\n    }, {});\n  }\n  /**\n   * Sets text track settings from an object of values.\n   *\n   * @param {Object} values\n   *        An object with config values parsed from the DOM or localStorage.\n   */\n  ;\n\n  _proto.setValues = function setValues(values) {\n    var _this4 = this;\n\n    each(selectConfigs, function (config, key) {\n      setSelectedOption(_this4.$(config.selector), values[key], config.parser);\n    });\n  }\n  /**\n   * Sets all `<select>` elements to their default values.\n   */\n  ;\n\n  _proto.setDefaults = function setDefaults() {\n    var _this5 = this;\n\n    each(selectConfigs, function (config) {\n      var index = config.hasOwnProperty('default') ? config[\"default\"] : 0;\n      _this5.$(config.selector).selectedIndex = index;\n    });\n  }\n  /**\n   * Restore texttrack settings from localStorage\n   */\n  ;\n\n  _proto.restoreSettings = function restoreSettings() {\n    var values;\n\n    try {\n      values = JSON.parse(window.localStorage.getItem(LOCAL_STORAGE_KEY$1));\n    } catch (err) {\n      log$1.warn(err);\n    }\n\n    if (values) {\n      this.setValues(values);\n    }\n  }\n  /**\n   * Save text track settings to localStorage\n   */\n  ;\n\n  _proto.saveSettings = function saveSettings() {\n    if (!this.options_.persistTextTrackSettings) {\n      return;\n    }\n\n    var values = this.getValues();\n\n    try {\n      if (Object.keys(values).length) {\n        window.localStorage.setItem(LOCAL_STORAGE_KEY$1, JSON.stringify(values));\n      } else {\n        window.localStorage.removeItem(LOCAL_STORAGE_KEY$1);\n      }\n    } catch (err) {\n      log$1.warn(err);\n    }\n  }\n  /**\n   * Update display of text track settings\n   */\n  ;\n\n  _proto.updateDisplay = function updateDisplay() {\n    var ttDisplay = this.player_.getChild('textTrackDisplay');\n\n    if (ttDisplay) {\n      ttDisplay.updateDisplay();\n    }\n  }\n  /**\n   * conditionally blur the element and refocus the captions button\n   *\n   * @private\n   */\n  ;\n\n  _proto.conditionalBlur_ = function conditionalBlur_() {\n    this.previouslyActiveEl_ = null;\n    var cb = this.player_.controlBar;\n    var subsCapsBtn = cb && cb.subsCapsButton;\n    var ccBtn = cb && cb.captionsButton;\n\n    if (subsCapsBtn) {\n      subsCapsBtn.focus();\n    } else if (ccBtn) {\n      ccBtn.focus();\n    }\n  };\n\n  return TextTrackSettings;\n}(ModalDialog);\n\nComponent$1.registerComponent('TextTrackSettings', TextTrackSettings);\n\n/**\n * A Resize Manager. It is in charge of triggering `playerresize` on the player in the right conditions.\n *\n * It'll either create an iframe and use a debounced resize handler on it or use the new {@link https://wicg.github.io/ResizeObserver/|ResizeObserver}.\n *\n * If the ResizeObserver is available natively, it will be used. A polyfill can be passed in as an option.\n * If a `playerresize` event is not needed, the ResizeManager component can be removed from the player, see the example below.\n * @example <caption>How to disable the resize manager</caption>\n * const player = videojs('#vid', {\n *   resizeManager: false\n * });\n *\n * @see {@link https://wicg.github.io/ResizeObserver/|ResizeObserver specification}\n *\n * @extends Component\n */\n\nvar ResizeManager = /*#__PURE__*/function (_Component) {\n  _inheritsLoose(ResizeManager, _Component);\n\n  /**\n   * Create the ResizeManager.\n   *\n   * @param {Object} player\n   *        The `Player` that this class should be attached to.\n   *\n   * @param {Object} [options]\n   *        The key/value store of ResizeManager options.\n   *\n   * @param {Object} [options.ResizeObserver]\n   *        A polyfill for ResizeObserver can be passed in here.\n   *        If this is set to null it will ignore the native ResizeObserver and fall back to the iframe fallback.\n   */\n  function ResizeManager(player, options) {\n    var _this;\n\n    var RESIZE_OBSERVER_AVAILABLE = options.ResizeObserver || window.ResizeObserver; // if `null` was passed, we want to disable the ResizeObserver\n\n    if (options.ResizeObserver === null) {\n      RESIZE_OBSERVER_AVAILABLE = false;\n    } // Only create an element when ResizeObserver isn't available\n\n\n    var options_ = mergeOptions$3({\n      createEl: !RESIZE_OBSERVER_AVAILABLE,\n      reportTouchActivity: false\n    }, options);\n    _this = _Component.call(this, player, options_) || this;\n    _this.ResizeObserver = options.ResizeObserver || window.ResizeObserver;\n    _this.loadListener_ = null;\n    _this.resizeObserver_ = null;\n    _this.debouncedHandler_ = debounce(function () {\n      _this.resizeHandler();\n    }, 100, false, _assertThisInitialized(_this));\n\n    if (RESIZE_OBSERVER_AVAILABLE) {\n      _this.resizeObserver_ = new _this.ResizeObserver(_this.debouncedHandler_);\n\n      _this.resizeObserver_.observe(player.el());\n    } else {\n      _this.loadListener_ = function () {\n        if (!_this.el_ || !_this.el_.contentWindow) {\n          return;\n        }\n\n        var debouncedHandler_ = _this.debouncedHandler_;\n\n        var unloadListener_ = _this.unloadListener_ = function () {\n          off(this, 'resize', debouncedHandler_);\n          off(this, 'unload', unloadListener_);\n          unloadListener_ = null;\n        }; // safari and edge can unload the iframe before resizemanager dispose\n        // we have to dispose of event handlers correctly before that happens\n\n\n        on(_this.el_.contentWindow, 'unload', unloadListener_);\n        on(_this.el_.contentWindow, 'resize', debouncedHandler_);\n      };\n\n      _this.one('load', _this.loadListener_);\n    }\n\n    return _this;\n  }\n\n  var _proto = ResizeManager.prototype;\n\n  _proto.createEl = function createEl() {\n    return _Component.prototype.createEl.call(this, 'iframe', {\n      className: 'vjs-resize-manager',\n      tabIndex: -1\n    }, {\n      'aria-hidden': 'true'\n    });\n  }\n  /**\n   * Called when a resize is triggered on the iframe or a resize is observed via the ResizeObserver\n   *\n   * @fires Player#playerresize\n   */\n  ;\n\n  _proto.resizeHandler = function resizeHandler() {\n    /**\n     * Called when the player size has changed\n     *\n     * @event Player#playerresize\n     * @type {EventTarget~Event}\n     */\n    // make sure player is still around to trigger\n    // prevents this from causing an error after dispose\n    if (!this.player_ || !this.player_.trigger) {\n      return;\n    }\n\n    this.player_.trigger('playerresize');\n  };\n\n  _proto.dispose = function dispose() {\n    if (this.debouncedHandler_) {\n      this.debouncedHandler_.cancel();\n    }\n\n    if (this.resizeObserver_) {\n      if (this.player_.el()) {\n        this.resizeObserver_.unobserve(this.player_.el());\n      }\n\n      this.resizeObserver_.disconnect();\n    }\n\n    if (this.loadListener_) {\n      this.off('load', this.loadListener_);\n    }\n\n    if (this.el_ && this.el_.contentWindow && this.unloadListener_) {\n      this.unloadListener_.call(this.el_.contentWindow);\n    }\n\n    this.ResizeObserver = null;\n    this.resizeObserver = null;\n    this.debouncedHandler_ = null;\n    this.loadListener_ = null;\n\n    _Component.prototype.dispose.call(this);\n  };\n\n  return ResizeManager;\n}(Component$1);\n\nComponent$1.registerComponent('ResizeManager', ResizeManager);\n\nvar defaults = {\n  trackingThreshold: 30,\n  liveTolerance: 15\n};\n/*\n  track when we are at the live edge, and other helpers for live playback */\n\n/**\n * A class for checking live current time and determining when the player\n * is at or behind the live edge.\n */\n\nvar LiveTracker = /*#__PURE__*/function (_Component) {\n  _inheritsLoose(LiveTracker, _Component);\n\n  /**\n   * Creates an instance of this class.\n   *\n   * @param {Player} player\n   *        The `Player` that this class should be attached to.\n   *\n   * @param {Object} [options]\n   *        The key/value store of player options.\n   *\n   * @param {number} [options.trackingThreshold=30]\n   *        Number of seconds of live window (seekableEnd - seekableStart) that\n   *        media needs to have before the liveui will be shown.\n   *\n   * @param {number} [options.liveTolerance=15]\n   *        Number of seconds behind live that we have to be\n   *        before we will be considered non-live. Note that this will only\n   *        be used when playing at the live edge. This allows large seekable end\n   *        changes to not effect wether we are live or not.\n   */\n  function LiveTracker(player, options) {\n    var _this;\n\n    // LiveTracker does not need an element\n    var options_ = mergeOptions$3(defaults, options, {\n      createEl: false\n    });\n    _this = _Component.call(this, player, options_) || this;\n\n    _this.handleVisibilityChange_ = function (e) {\n      return _this.handleVisibilityChange(e);\n    };\n\n    _this.trackLiveHandler_ = function () {\n      return _this.trackLive_();\n    };\n\n    _this.handlePlay_ = function (e) {\n      return _this.handlePlay(e);\n    };\n\n    _this.handleFirstTimeupdate_ = function (e) {\n      return _this.handleFirstTimeupdate(e);\n    };\n\n    _this.handleSeeked_ = function (e) {\n      return _this.handleSeeked(e);\n    };\n\n    _this.seekToLiveEdge_ = function (e) {\n      return _this.seekToLiveEdge(e);\n    };\n\n    _this.reset_();\n\n    _this.on(_this.player_, 'durationchange', function (e) {\n      return _this.handleDurationchange(e);\n    }); // we should try to toggle tracking on canplay as native playback engines, like Safari\n    // may not have the proper values for things like seekableEnd until then\n\n\n    _this.one(_this.player_, 'canplay', function () {\n      return _this.toggleTracking();\n    }); // we don't need to track live playback if the document is hidden,\n    // also, tracking when the document is hidden can\n    // cause the CPU to spike and eventually crash the page on IE11.\n\n\n    if (IE_VERSION && 'hidden' in document && 'visibilityState' in document) {\n      _this.on(document, 'visibilitychange', _this.handleVisibilityChange_);\n    }\n\n    return _this;\n  }\n  /**\n   * toggle tracking based on document visiblility\n   */\n\n\n  var _proto = LiveTracker.prototype;\n\n  _proto.handleVisibilityChange = function handleVisibilityChange() {\n    if (this.player_.duration() !== Infinity) {\n      return;\n    }\n\n    if (document.hidden) {\n      this.stopTracking();\n    } else {\n      this.startTracking();\n    }\n  }\n  /**\n   * all the functionality for tracking when seek end changes\n   * and for tracking how far past seek end we should be\n   */\n  ;\n\n  _proto.trackLive_ = function trackLive_() {\n    var seekable = this.player_.seekable(); // skip undefined seekable\n\n    if (!seekable || !seekable.length) {\n      return;\n    }\n\n    var newTime = Number(window.performance.now().toFixed(4));\n    var deltaTime = this.lastTime_ === -1 ? 0 : (newTime - this.lastTime_) / 1000;\n    this.lastTime_ = newTime;\n    this.pastSeekEnd_ = this.pastSeekEnd() + deltaTime;\n    var liveCurrentTime = this.liveCurrentTime();\n    var currentTime = this.player_.currentTime(); // we are behind live if any are true\n    // 1. the player is paused\n    // 2. the user seeked to a location 2 seconds away from live\n    // 3. the difference between live and current time is greater\n    //    liveTolerance which defaults to 15s\n\n    var isBehind = this.player_.paused() || this.seekedBehindLive_ || Math.abs(liveCurrentTime - currentTime) > this.options_.liveTolerance; // we cannot be behind if\n    // 1. until we have not seen a timeupdate yet\n    // 2. liveCurrentTime is Infinity, which happens on Android and Native Safari\n\n    if (!this.timeupdateSeen_ || liveCurrentTime === Infinity) {\n      isBehind = false;\n    }\n\n    if (isBehind !== this.behindLiveEdge_) {\n      this.behindLiveEdge_ = isBehind;\n      this.trigger('liveedgechange');\n    }\n  }\n  /**\n   * handle a durationchange event on the player\n   * and start/stop tracking accordingly.\n   */\n  ;\n\n  _proto.handleDurationchange = function handleDurationchange() {\n    this.toggleTracking();\n  }\n  /**\n   * start/stop tracking\n   */\n  ;\n\n  _proto.toggleTracking = function toggleTracking() {\n    if (this.player_.duration() === Infinity && this.liveWindow() >= this.options_.trackingThreshold) {\n      if (this.player_.options_.liveui) {\n        this.player_.addClass('vjs-liveui');\n      }\n\n      this.startTracking();\n    } else {\n      this.player_.removeClass('vjs-liveui');\n      this.stopTracking();\n    }\n  }\n  /**\n   * start tracking live playback\n   */\n  ;\n\n  _proto.startTracking = function startTracking() {\n    if (this.isTracking()) {\n      return;\n    } // If we haven't seen a timeupdate, we need to check whether playback\n    // began before this component started tracking. This can happen commonly\n    // when using autoplay.\n\n\n    if (!this.timeupdateSeen_) {\n      this.timeupdateSeen_ = this.player_.hasStarted();\n    }\n\n    this.trackingInterval_ = this.setInterval(this.trackLiveHandler_, UPDATE_REFRESH_INTERVAL);\n    this.trackLive_();\n    this.on(this.player_, ['play', 'pause'], this.trackLiveHandler_);\n\n    if (!this.timeupdateSeen_) {\n      this.one(this.player_, 'play', this.handlePlay_);\n      this.one(this.player_, 'timeupdate', this.handleFirstTimeupdate_);\n    } else {\n      this.on(this.player_, 'seeked', this.handleSeeked_);\n    }\n  }\n  /**\n   * handle the first timeupdate on the player if it wasn't already playing\n   * when live tracker started tracking.\n   */\n  ;\n\n  _proto.handleFirstTimeupdate = function handleFirstTimeupdate() {\n    this.timeupdateSeen_ = true;\n    this.on(this.player_, 'seeked', this.handleSeeked_);\n  }\n  /**\n   * Keep track of what time a seek starts, and listen for seeked\n   * to find where a seek ends.\n   */\n  ;\n\n  _proto.handleSeeked = function handleSeeked() {\n    var timeDiff = Math.abs(this.liveCurrentTime() - this.player_.currentTime());\n    this.seekedBehindLive_ = this.nextSeekedFromUser_ && timeDiff > 2;\n    this.nextSeekedFromUser_ = false;\n    this.trackLive_();\n  }\n  /**\n   * handle the first play on the player, and make sure that we seek\n   * right to the live edge.\n   */\n  ;\n\n  _proto.handlePlay = function handlePlay() {\n    this.one(this.player_, 'timeupdate', this.seekToLiveEdge_);\n  }\n  /**\n   * Stop tracking, and set all internal variables to\n   * their initial value.\n   */\n  ;\n\n  _proto.reset_ = function reset_() {\n    this.lastTime_ = -1;\n    this.pastSeekEnd_ = 0;\n    this.lastSeekEnd_ = -1;\n    this.behindLiveEdge_ = true;\n    this.timeupdateSeen_ = false;\n    this.seekedBehindLive_ = false;\n    this.nextSeekedFromUser_ = false;\n    this.clearInterval(this.trackingInterval_);\n    this.trackingInterval_ = null;\n    this.off(this.player_, ['play', 'pause'], this.trackLiveHandler_);\n    this.off(this.player_, 'seeked', this.handleSeeked_);\n    this.off(this.player_, 'play', this.handlePlay_);\n    this.off(this.player_, 'timeupdate', this.handleFirstTimeupdate_);\n    this.off(this.player_, 'timeupdate', this.seekToLiveEdge_);\n  }\n  /**\n   * The next seeked event is from the user. Meaning that any seek\n   * > 2s behind live will be considered behind live for real and\n   * liveTolerance will be ignored.\n   */\n  ;\n\n  _proto.nextSeekedFromUser = function nextSeekedFromUser() {\n    this.nextSeekedFromUser_ = true;\n  }\n  /**\n   * stop tracking live playback\n   */\n  ;\n\n  _proto.stopTracking = function stopTracking() {\n    if (!this.isTracking()) {\n      return;\n    }\n\n    this.reset_();\n    this.trigger('liveedgechange');\n  }\n  /**\n   * A helper to get the player seekable end\n   * so that we don't have to null check everywhere\n   *\n   * @return {number}\n   *         The furthest seekable end or Infinity.\n   */\n  ;\n\n  _proto.seekableEnd = function seekableEnd() {\n    var seekable = this.player_.seekable();\n    var seekableEnds = [];\n    var i = seekable ? seekable.length : 0;\n\n    while (i--) {\n      seekableEnds.push(seekable.end(i));\n    } // grab the furthest seekable end after sorting, or if there are none\n    // default to Infinity\n\n\n    return seekableEnds.length ? seekableEnds.sort()[seekableEnds.length - 1] : Infinity;\n  }\n  /**\n   * A helper to get the player seekable start\n   * so that we don't have to null check everywhere\n   *\n   * @return {number}\n   *         The earliest seekable start or 0.\n   */\n  ;\n\n  _proto.seekableStart = function seekableStart() {\n    var seekable = this.player_.seekable();\n    var seekableStarts = [];\n    var i = seekable ? seekable.length : 0;\n\n    while (i--) {\n      seekableStarts.push(seekable.start(i));\n    } // grab the first seekable start after sorting, or if there are none\n    // default to 0\n\n\n    return seekableStarts.length ? seekableStarts.sort()[0] : 0;\n  }\n  /**\n   * Get the live time window aka\n   * the amount of time between seekable start and\n   * live current time.\n   *\n   * @return {number}\n   *         The amount of seconds that are seekable in\n   *         the live video.\n   */\n  ;\n\n  _proto.liveWindow = function liveWindow() {\n    var liveCurrentTime = this.liveCurrentTime(); // if liveCurrenTime is Infinity then we don't have a liveWindow at all\n\n    if (liveCurrentTime === Infinity) {\n      return 0;\n    }\n\n    return liveCurrentTime - this.seekableStart();\n  }\n  /**\n   * Determines if the player is live, only checks if this component\n   * is tracking live playback or not\n   *\n   * @return {boolean}\n   *         Wether liveTracker is tracking\n   */\n  ;\n\n  _proto.isLive = function isLive() {\n    return this.isTracking();\n  }\n  /**\n   * Determines if currentTime is at the live edge and won't fall behind\n   * on each seekableendchange\n   *\n   * @return {boolean}\n   *         Wether playback is at the live edge\n   */\n  ;\n\n  _proto.atLiveEdge = function atLiveEdge() {\n    return !this.behindLiveEdge();\n  }\n  /**\n   * get what we expect the live current time to be\n   *\n   * @return {number}\n   *         The expected live current time\n   */\n  ;\n\n  _proto.liveCurrentTime = function liveCurrentTime() {\n    return this.pastSeekEnd() + this.seekableEnd();\n  }\n  /**\n   * The number of seconds that have occured after seekable end\n   * changed. This will be reset to 0 once seekable end changes.\n   *\n   * @return {number}\n   *         Seconds past the current seekable end\n   */\n  ;\n\n  _proto.pastSeekEnd = function pastSeekEnd() {\n    var seekableEnd = this.seekableEnd();\n\n    if (this.lastSeekEnd_ !== -1 && seekableEnd !== this.lastSeekEnd_) {\n      this.pastSeekEnd_ = 0;\n    }\n\n    this.lastSeekEnd_ = seekableEnd;\n    return this.pastSeekEnd_;\n  }\n  /**\n   * If we are currently behind the live edge, aka currentTime will be\n   * behind on a seekableendchange\n   *\n   * @return {boolean}\n   *         If we are behind the live edge\n   */\n  ;\n\n  _proto.behindLiveEdge = function behindLiveEdge() {\n    return this.behindLiveEdge_;\n  }\n  /**\n   * Wether live tracker is currently tracking or not.\n   */\n  ;\n\n  _proto.isTracking = function isTracking() {\n    return typeof this.trackingInterval_ === 'number';\n  }\n  /**\n   * Seek to the live edge if we are behind the live edge\n   */\n  ;\n\n  _proto.seekToLiveEdge = function seekToLiveEdge() {\n    this.seekedBehindLive_ = false;\n\n    if (this.atLiveEdge()) {\n      return;\n    }\n\n    this.nextSeekedFromUser_ = false;\n    this.player_.currentTime(this.liveCurrentTime());\n  }\n  /**\n   * Dispose of liveTracker\n   */\n  ;\n\n  _proto.dispose = function dispose() {\n    this.off(document, 'visibilitychange', this.handleVisibilityChange_);\n    this.stopTracking();\n\n    _Component.prototype.dispose.call(this);\n  };\n\n  return LiveTracker;\n}(Component$1);\n\nComponent$1.registerComponent('LiveTracker', LiveTracker);\n\n/**\n * This function is used to fire a sourceset when there is something\n * similar to `mediaEl.load()` being called. It will try to find the source via\n * the `src` attribute and then the `<source>` elements. It will then fire `sourceset`\n * with the source that was found or empty string if we cannot know. If it cannot\n * find a source then `sourceset` will not be fired.\n *\n * @param {Html5} tech\n *        The tech object that sourceset was setup on\n *\n * @return {boolean}\n *         returns false if the sourceset was not fired and true otherwise.\n */\n\nvar sourcesetLoad = function sourcesetLoad(tech) {\n  var el = tech.el(); // if `el.src` is set, that source will be loaded.\n\n  if (el.hasAttribute('src')) {\n    tech.triggerSourceset(el.src);\n    return true;\n  }\n  /**\n   * Since there isn't a src property on the media element, source elements will be used for\n   * implementing the source selection algorithm. This happens asynchronously and\n   * for most cases were there is more than one source we cannot tell what source will\n   * be loaded, without re-implementing the source selection algorithm. At this time we are not\n   * going to do that. There are three special cases that we do handle here though:\n   *\n   * 1. If there are no sources, do not fire `sourceset`.\n   * 2. If there is only one `<source>` with a `src` property/attribute that is our `src`\n   * 3. If there is more than one `<source>` but all of them have the same `src` url.\n   *    That will be our src.\n   */\n\n\n  var sources = tech.$$('source');\n  var srcUrls = [];\n  var src = ''; // if there are no sources, do not fire sourceset\n\n  if (!sources.length) {\n    return false;\n  } // only count valid/non-duplicate source elements\n\n\n  for (var i = 0; i < sources.length; i++) {\n    var url = sources[i].src;\n\n    if (url && srcUrls.indexOf(url) === -1) {\n      srcUrls.push(url);\n    }\n  } // there were no valid sources\n\n\n  if (!srcUrls.length) {\n    return false;\n  } // there is only one valid source element url\n  // use that\n\n\n  if (srcUrls.length === 1) {\n    src = srcUrls[0];\n  }\n\n  tech.triggerSourceset(src);\n  return true;\n};\n/**\n * our implementation of an `innerHTML` descriptor for browsers\n * that do not have one.\n */\n\n\nvar innerHTMLDescriptorPolyfill = Object.defineProperty({}, 'innerHTML', {\n  get: function get() {\n    return this.cloneNode(true).innerHTML;\n  },\n  set: function set(v) {\n    // make a dummy node to use innerHTML on\n    var dummy = document.createElement(this.nodeName.toLowerCase()); // set innerHTML to the value provided\n\n    dummy.innerHTML = v; // make a document fragment to hold the nodes from dummy\n\n    var docFrag = document.createDocumentFragment(); // copy all of the nodes created by the innerHTML on dummy\n    // to the document fragment\n\n    while (dummy.childNodes.length) {\n      docFrag.appendChild(dummy.childNodes[0]);\n    } // remove content\n\n\n    this.innerText = ''; // now we add all of that html in one by appending the\n    // document fragment. This is how innerHTML does it.\n\n    window.Element.prototype.appendChild.call(this, docFrag); // then return the result that innerHTML's setter would\n\n    return this.innerHTML;\n  }\n});\n/**\n * Get a property descriptor given a list of priorities and the\n * property to get.\n */\n\nvar getDescriptor = function getDescriptor(priority, prop) {\n  var descriptor = {};\n\n  for (var i = 0; i < priority.length; i++) {\n    descriptor = Object.getOwnPropertyDescriptor(priority[i], prop);\n\n    if (descriptor && descriptor.set && descriptor.get) {\n      break;\n    }\n  }\n\n  descriptor.enumerable = true;\n  descriptor.configurable = true;\n  return descriptor;\n};\n\nvar getInnerHTMLDescriptor = function getInnerHTMLDescriptor(tech) {\n  return getDescriptor([tech.el(), window.HTMLMediaElement.prototype, window.Element.prototype, innerHTMLDescriptorPolyfill], 'innerHTML');\n};\n/**\n * Patches browser internal functions so that we can tell synchronously\n * if a `<source>` was appended to the media element. For some reason this\n * causes a `sourceset` if the the media element is ready and has no source.\n * This happens when:\n * - The page has just loaded and the media element does not have a source.\n * - The media element was emptied of all sources, then `load()` was called.\n *\n * It does this by patching the following functions/properties when they are supported:\n *\n * - `append()` - can be used to add a `<source>` element to the media element\n * - `appendChild()` - can be used to add a `<source>` element to the media element\n * - `insertAdjacentHTML()` -  can be used to add a `<source>` element to the media element\n * - `innerHTML` -  can be used to add a `<source>` element to the media element\n *\n * @param {Html5} tech\n *        The tech object that sourceset is being setup on.\n */\n\n\nvar firstSourceWatch = function firstSourceWatch(tech) {\n  var el = tech.el(); // make sure firstSourceWatch isn't setup twice.\n\n  if (el.resetSourceWatch_) {\n    return;\n  }\n\n  var old = {};\n  var innerDescriptor = getInnerHTMLDescriptor(tech);\n\n  var appendWrapper = function appendWrapper(appendFn) {\n    return function () {\n      for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {\n        args[_key] = arguments[_key];\n      }\n\n      var retval = appendFn.apply(el, args);\n      sourcesetLoad(tech);\n      return retval;\n    };\n  };\n\n  ['append', 'appendChild', 'insertAdjacentHTML'].forEach(function (k) {\n    if (!el[k]) {\n      return;\n    } // store the old function\n\n\n    old[k] = el[k]; // call the old function with a sourceset if a source\n    // was loaded\n\n    el[k] = appendWrapper(old[k]);\n  });\n  Object.defineProperty(el, 'innerHTML', mergeOptions$3(innerDescriptor, {\n    set: appendWrapper(innerDescriptor.set)\n  }));\n\n  el.resetSourceWatch_ = function () {\n    el.resetSourceWatch_ = null;\n    Object.keys(old).forEach(function (k) {\n      el[k] = old[k];\n    });\n    Object.defineProperty(el, 'innerHTML', innerDescriptor);\n  }; // on the first sourceset, we need to revert our changes\n\n\n  tech.one('sourceset', el.resetSourceWatch_);\n};\n/**\n * our implementation of a `src` descriptor for browsers\n * that do not have one.\n */\n\n\nvar srcDescriptorPolyfill = Object.defineProperty({}, 'src', {\n  get: function get() {\n    if (this.hasAttribute('src')) {\n      return getAbsoluteURL(window.Element.prototype.getAttribute.call(this, 'src'));\n    }\n\n    return '';\n  },\n  set: function set(v) {\n    window.Element.prototype.setAttribute.call(this, 'src', v);\n    return v;\n  }\n});\n\nvar getSrcDescriptor = function getSrcDescriptor(tech) {\n  return getDescriptor([tech.el(), window.HTMLMediaElement.prototype, srcDescriptorPolyfill], 'src');\n};\n/**\n * setup `sourceset` handling on the `Html5` tech. This function\n * patches the following element properties/functions:\n *\n * - `src` - to determine when `src` is set\n * - `setAttribute()` - to determine when `src` is set\n * - `load()` - this re-triggers the source selection algorithm, and can\n *              cause a sourceset.\n *\n * If there is no source when we are adding `sourceset` support or during a `load()`\n * we also patch the functions listed in `firstSourceWatch`.\n *\n * @param {Html5} tech\n *        The tech to patch\n */\n\n\nvar setupSourceset = function setupSourceset(tech) {\n  if (!tech.featuresSourceset) {\n    return;\n  }\n\n  var el = tech.el(); // make sure sourceset isn't setup twice.\n\n  if (el.resetSourceset_) {\n    return;\n  }\n\n  var srcDescriptor = getSrcDescriptor(tech);\n  var oldSetAttribute = el.setAttribute;\n  var oldLoad = el.load;\n  Object.defineProperty(el, 'src', mergeOptions$3(srcDescriptor, {\n    set: function set(v) {\n      var retval = srcDescriptor.set.call(el, v); // we use the getter here to get the actual value set on src\n\n      tech.triggerSourceset(el.src);\n      return retval;\n    }\n  }));\n\n  el.setAttribute = function (n, v) {\n    var retval = oldSetAttribute.call(el, n, v);\n\n    if (/src/i.test(n)) {\n      tech.triggerSourceset(el.src);\n    }\n\n    return retval;\n  };\n\n  el.load = function () {\n    var retval = oldLoad.call(el); // if load was called, but there was no source to fire\n    // sourceset on. We have to watch for a source append\n    // as that can trigger a `sourceset` when the media element\n    // has no source\n\n    if (!sourcesetLoad(tech)) {\n      tech.triggerSourceset('');\n      firstSourceWatch(tech);\n    }\n\n    return retval;\n  };\n\n  if (el.currentSrc) {\n    tech.triggerSourceset(el.currentSrc);\n  } else if (!sourcesetLoad(tech)) {\n    firstSourceWatch(tech);\n  }\n\n  el.resetSourceset_ = function () {\n    el.resetSourceset_ = null;\n    el.load = oldLoad;\n    el.setAttribute = oldSetAttribute;\n    Object.defineProperty(el, 'src', srcDescriptor);\n\n    if (el.resetSourceWatch_) {\n      el.resetSourceWatch_();\n    }\n  };\n};\n\n/**\n * Object.defineProperty but \"lazy\", which means that the value is only set after\n * it retrieved the first time, rather than being set right away.\n *\n * @param {Object} obj the object to set the property on\n * @param {string} key the key for the property to set\n * @param {Function} getValue the function used to get the value when it is needed.\n * @param {boolean} setter wether a setter shoould be allowed or not\n */\nvar defineLazyProperty = function defineLazyProperty(obj, key, getValue, setter) {\n  if (setter === void 0) {\n    setter = true;\n  }\n\n  var set = function set(value) {\n    return Object.defineProperty(obj, key, {\n      value: value,\n      enumerable: true,\n      writable: true\n    });\n  };\n\n  var options = {\n    configurable: true,\n    enumerable: true,\n    get: function get() {\n      var value = getValue();\n      set(value);\n      return value;\n    }\n  };\n\n  if (setter) {\n    options.set = set;\n  }\n\n  return Object.defineProperty(obj, key, options);\n};\n\n/**\n * HTML5 Media Controller - Wrapper for HTML5 Media API\n *\n * @mixes Tech~SourceHandlerAdditions\n * @extends Tech\n */\n\nvar Html5 = /*#__PURE__*/function (_Tech) {\n  _inheritsLoose(Html5, _Tech);\n\n  /**\n  * Create an instance of this Tech.\n  *\n  * @param {Object} [options]\n  *        The key/value store of player options.\n  *\n  * @param {Component~ReadyCallback} ready\n  *        Callback function to call when the `HTML5` Tech is ready.\n  */\n  function Html5(options, ready) {\n    var _this;\n\n    _this = _Tech.call(this, options, ready) || this;\n    var source = options.source;\n    var crossoriginTracks = false; // Set the source if one is provided\n    // 1) Check if the source is new (if not, we want to keep the original so playback isn't interrupted)\n    // 2) Check to see if the network state of the tag was failed at init, and if so, reset the source\n    // anyway so the error gets fired.\n\n    if (source && (_this.el_.currentSrc !== source.src || options.tag && options.tag.initNetworkState_ === 3)) {\n      _this.setSource(source);\n    } else {\n      _this.handleLateInit_(_this.el_);\n    } // setup sourceset after late sourceset/init\n\n\n    if (options.enableSourceset) {\n      _this.setupSourcesetHandling_();\n    }\n\n    _this.isScrubbing_ = false;\n\n    if (_this.el_.hasChildNodes()) {\n      var nodes = _this.el_.childNodes;\n      var nodesLength = nodes.length;\n      var removeNodes = [];\n\n      while (nodesLength--) {\n        var node = nodes[nodesLength];\n        var nodeName = node.nodeName.toLowerCase();\n\n        if (nodeName === 'track') {\n          if (!_this.featuresNativeTextTracks) {\n            // Empty video tag tracks so the built-in player doesn't use them also.\n            // This may not be fast enough to stop HTML5 browsers from reading the tags\n            // so we'll need to turn off any default tracks if we're manually doing\n            // captions and subtitles. videoElement.textTracks\n            removeNodes.push(node);\n          } else {\n            // store HTMLTrackElement and TextTrack to remote list\n            _this.remoteTextTrackEls().addTrackElement_(node);\n\n            _this.remoteTextTracks().addTrack(node.track);\n\n            _this.textTracks().addTrack(node.track);\n\n            if (!crossoriginTracks && !_this.el_.hasAttribute('crossorigin') && isCrossOrigin(node.src)) {\n              crossoriginTracks = true;\n            }\n          }\n        }\n      }\n\n      for (var i = 0; i < removeNodes.length; i++) {\n        _this.el_.removeChild(removeNodes[i]);\n      }\n    }\n\n    _this.proxyNativeTracks_();\n\n    if (_this.featuresNativeTextTracks && crossoriginTracks) {\n      log$1.warn('Text Tracks are being loaded from another origin but the crossorigin attribute isn\\'t used.\\n' + 'This may prevent text tracks from loading.');\n    } // prevent iOS Safari from disabling metadata text tracks during native playback\n\n\n    _this.restoreMetadataTracksInIOSNativePlayer_(); // Determine if native controls should be used\n    // Our goal should be to get the custom controls on mobile solid everywhere\n    // so we can remove this all together. Right now this will block custom\n    // controls on touch enabled laptops like the Chrome Pixel\n\n\n    if ((TOUCH_ENABLED || IS_IPHONE || IS_NATIVE_ANDROID) && options.nativeControlsForTouch === true) {\n      _this.setControls(true);\n    } // on iOS, we want to proxy `webkitbeginfullscreen` and `webkitendfullscreen`\n    // into a `fullscreenchange` event\n\n\n    _this.proxyWebkitFullscreen_();\n\n    _this.triggerReady();\n\n    return _this;\n  }\n  /**\n   * Dispose of `HTML5` media element and remove all tracks.\n   */\n\n\n  var _proto = Html5.prototype;\n\n  _proto.dispose = function dispose() {\n    if (this.el_ && this.el_.resetSourceset_) {\n      this.el_.resetSourceset_();\n    }\n\n    Html5.disposeMediaElement(this.el_);\n    this.options_ = null; // tech will handle clearing of the emulated track list\n\n    _Tech.prototype.dispose.call(this);\n  }\n  /**\n   * Modify the media element so that we can detect when\n   * the source is changed. Fires `sourceset` just after the source has changed\n   */\n  ;\n\n  _proto.setupSourcesetHandling_ = function setupSourcesetHandling_() {\n    setupSourceset(this);\n  }\n  /**\n   * When a captions track is enabled in the iOS Safari native player, all other\n   * tracks are disabled (including metadata tracks), which nulls all of their\n   * associated cue points. This will restore metadata tracks to their pre-fullscreen\n   * state in those cases so that cue points are not needlessly lost.\n   *\n   * @private\n   */\n  ;\n\n  _proto.restoreMetadataTracksInIOSNativePlayer_ = function restoreMetadataTracksInIOSNativePlayer_() {\n    var textTracks = this.textTracks();\n    var metadataTracksPreFullscreenState; // captures a snapshot of every metadata track's current state\n\n    var takeMetadataTrackSnapshot = function takeMetadataTrackSnapshot() {\n      metadataTracksPreFullscreenState = [];\n\n      for (var i = 0; i < textTracks.length; i++) {\n        var track = textTracks[i];\n\n        if (track.kind === 'metadata') {\n          metadataTracksPreFullscreenState.push({\n            track: track,\n            storedMode: track.mode\n          });\n        }\n      }\n    }; // snapshot each metadata track's initial state, and update the snapshot\n    // each time there is a track 'change' event\n\n\n    takeMetadataTrackSnapshot();\n    textTracks.addEventListener('change', takeMetadataTrackSnapshot);\n    this.on('dispose', function () {\n      return textTracks.removeEventListener('change', takeMetadataTrackSnapshot);\n    });\n\n    var restoreTrackMode = function restoreTrackMode() {\n      for (var i = 0; i < metadataTracksPreFullscreenState.length; i++) {\n        var storedTrack = metadataTracksPreFullscreenState[i];\n\n        if (storedTrack.track.mode === 'disabled' && storedTrack.track.mode !== storedTrack.storedMode) {\n          storedTrack.track.mode = storedTrack.storedMode;\n        }\n      } // we only want this handler to be executed on the first 'change' event\n\n\n      textTracks.removeEventListener('change', restoreTrackMode);\n    }; // when we enter fullscreen playback, stop updating the snapshot and\n    // restore all track modes to their pre-fullscreen state\n\n\n    this.on('webkitbeginfullscreen', function () {\n      textTracks.removeEventListener('change', takeMetadataTrackSnapshot); // remove the listener before adding it just in case it wasn't previously removed\n\n      textTracks.removeEventListener('change', restoreTrackMode);\n      textTracks.addEventListener('change', restoreTrackMode);\n    }); // start updating the snapshot again after leaving fullscreen\n\n    this.on('webkitendfullscreen', function () {\n      // remove the listener before adding it just in case it wasn't previously removed\n      textTracks.removeEventListener('change', takeMetadataTrackSnapshot);\n      textTracks.addEventListener('change', takeMetadataTrackSnapshot); // remove the restoreTrackMode handler in case it wasn't triggered during fullscreen playback\n\n      textTracks.removeEventListener('change', restoreTrackMode);\n    });\n  }\n  /**\n   * Attempt to force override of tracks for the given type\n   *\n   * @param {string} type - Track type to override, possible values include 'Audio',\n   * 'Video', and 'Text'.\n   * @param {boolean} override - If set to true native audio/video will be overridden,\n   * otherwise native audio/video will potentially be used.\n   * @private\n   */\n  ;\n\n  _proto.overrideNative_ = function overrideNative_(type, override) {\n    var _this2 = this;\n\n    // If there is no behavioral change don't add/remove listeners\n    if (override !== this[\"featuresNative\" + type + \"Tracks\"]) {\n      return;\n    }\n\n    var lowerCaseType = type.toLowerCase();\n\n    if (this[lowerCaseType + \"TracksListeners_\"]) {\n      Object.keys(this[lowerCaseType + \"TracksListeners_\"]).forEach(function (eventName) {\n        var elTracks = _this2.el()[lowerCaseType + \"Tracks\"];\n\n        elTracks.removeEventListener(eventName, _this2[lowerCaseType + \"TracksListeners_\"][eventName]);\n      });\n    }\n\n    this[\"featuresNative\" + type + \"Tracks\"] = !override;\n    this[lowerCaseType + \"TracksListeners_\"] = null;\n    this.proxyNativeTracksForType_(lowerCaseType);\n  }\n  /**\n   * Attempt to force override of native audio tracks.\n   *\n   * @param {boolean} override - If set to true native audio will be overridden,\n   * otherwise native audio will potentially be used.\n   */\n  ;\n\n  _proto.overrideNativeAudioTracks = function overrideNativeAudioTracks(override) {\n    this.overrideNative_('Audio', override);\n  }\n  /**\n   * Attempt to force override of native video tracks.\n   *\n   * @param {boolean} override - If set to true native video will be overridden,\n   * otherwise native video will potentially be used.\n   */\n  ;\n\n  _proto.overrideNativeVideoTracks = function overrideNativeVideoTracks(override) {\n    this.overrideNative_('Video', override);\n  }\n  /**\n   * Proxy native track list events for the given type to our track\n   * lists if the browser we are playing in supports that type of track list.\n   *\n   * @param {string} name - Track type; values include 'audio', 'video', and 'text'\n   * @private\n   */\n  ;\n\n  _proto.proxyNativeTracksForType_ = function proxyNativeTracksForType_(name) {\n    var _this3 = this;\n\n    var props = NORMAL[name];\n    var elTracks = this.el()[props.getterName];\n    var techTracks = this[props.getterName]();\n\n    if (!this[\"featuresNative\" + props.capitalName + \"Tracks\"] || !elTracks || !elTracks.addEventListener) {\n      return;\n    }\n\n    var listeners = {\n      change: function change(e) {\n        var event = {\n          type: 'change',\n          target: techTracks,\n          currentTarget: techTracks,\n          srcElement: techTracks\n        };\n        techTracks.trigger(event); // if we are a text track change event, we should also notify the\n        // remote text track list. This can potentially cause a false positive\n        // if we were to get a change event on a non-remote track and\n        // we triggered the event on the remote text track list which doesn't\n        // contain that track. However, best practices mean looping through the\n        // list of tracks and searching for the appropriate mode value, so,\n        // this shouldn't pose an issue\n\n        if (name === 'text') {\n          _this3[REMOTE.remoteText.getterName]().trigger(event);\n        }\n      },\n      addtrack: function addtrack(e) {\n        techTracks.addTrack(e.track);\n      },\n      removetrack: function removetrack(e) {\n        techTracks.removeTrack(e.track);\n      }\n    };\n\n    var removeOldTracks = function removeOldTracks() {\n      var removeTracks = [];\n\n      for (var i = 0; i < techTracks.length; i++) {\n        var found = false;\n\n        for (var j = 0; j < elTracks.length; j++) {\n          if (elTracks[j] === techTracks[i]) {\n            found = true;\n            break;\n          }\n        }\n\n        if (!found) {\n          removeTracks.push(techTracks[i]);\n        }\n      }\n\n      while (removeTracks.length) {\n        techTracks.removeTrack(removeTracks.shift());\n      }\n    };\n\n    this[props.getterName + 'Listeners_'] = listeners;\n    Object.keys(listeners).forEach(function (eventName) {\n      var listener = listeners[eventName];\n      elTracks.addEventListener(eventName, listener);\n\n      _this3.on('dispose', function (e) {\n        return elTracks.removeEventListener(eventName, listener);\n      });\n    }); // Remove (native) tracks that are not used anymore\n\n    this.on('loadstart', removeOldTracks);\n    this.on('dispose', function (e) {\n      return _this3.off('loadstart', removeOldTracks);\n    });\n  }\n  /**\n   * Proxy all native track list events to our track lists if the browser we are playing\n   * in supports that type of track list.\n   *\n   * @private\n   */\n  ;\n\n  _proto.proxyNativeTracks_ = function proxyNativeTracks_() {\n    var _this4 = this;\n\n    NORMAL.names.forEach(function (name) {\n      _this4.proxyNativeTracksForType_(name);\n    });\n  }\n  /**\n   * Create the `Html5` Tech's DOM element.\n   *\n   * @return {Element}\n   *         The element that gets created.\n   */\n  ;\n\n  _proto.createEl = function createEl() {\n    var el = this.options_.tag; // Check if this browser supports moving the element into the box.\n    // On the iPhone video will break if you move the element,\n    // So we have to create a brand new element.\n    // If we ingested the player div, we do not need to move the media element.\n\n    if (!el || !(this.options_.playerElIngest || this.movingMediaElementInDOM)) {\n      // If the original tag is still there, clone and remove it.\n      if (el) {\n        var clone = el.cloneNode(true);\n\n        if (el.parentNode) {\n          el.parentNode.insertBefore(clone, el);\n        }\n\n        Html5.disposeMediaElement(el);\n        el = clone;\n      } else {\n        el = document.createElement('video'); // determine if native controls should be used\n\n        var tagAttributes = this.options_.tag && getAttributes(this.options_.tag);\n        var attributes = mergeOptions$3({}, tagAttributes);\n\n        if (!TOUCH_ENABLED || this.options_.nativeControlsForTouch !== true) {\n          delete attributes.controls;\n        }\n\n        setAttributes(el, assign(attributes, {\n          id: this.options_.techId,\n          \"class\": 'vjs-tech'\n        }));\n      }\n\n      el.playerId = this.options_.playerId;\n    }\n\n    if (typeof this.options_.preload !== 'undefined') {\n      setAttribute(el, 'preload', this.options_.preload);\n    }\n\n    if (this.options_.disablePictureInPicture !== undefined) {\n      el.disablePictureInPicture = this.options_.disablePictureInPicture;\n    } // Update specific tag settings, in case they were overridden\n    // `autoplay` has to be *last* so that `muted` and `playsinline` are present\n    // when iOS/Safari or other browsers attempt to autoplay.\n\n\n    var settingsAttrs = ['loop', 'muted', 'playsinline', 'autoplay'];\n\n    for (var i = 0; i < settingsAttrs.length; i++) {\n      var attr = settingsAttrs[i];\n      var value = this.options_[attr];\n\n      if (typeof value !== 'undefined') {\n        if (value) {\n          setAttribute(el, attr, attr);\n        } else {\n          removeAttribute(el, attr);\n        }\n\n        el[attr] = value;\n      }\n    }\n\n    return el;\n  }\n  /**\n   * This will be triggered if the loadstart event has already fired, before videojs was\n   * ready. Two known examples of when this can happen are:\n   * 1. If we're loading the playback object after it has started loading\n   * 2. The media is already playing the (often with autoplay on) then\n   *\n   * This function will fire another loadstart so that videojs can catchup.\n   *\n   * @fires Tech#loadstart\n   *\n   * @return {undefined}\n   *         returns nothing.\n   */\n  ;\n\n  _proto.handleLateInit_ = function handleLateInit_(el) {\n    if (el.networkState === 0 || el.networkState === 3) {\n      // The video element hasn't started loading the source yet\n      // or didn't find a source\n      return;\n    }\n\n    if (el.readyState === 0) {\n      // NetworkState is set synchronously BUT loadstart is fired at the\n      // end of the current stack, usually before setInterval(fn, 0).\n      // So at this point we know loadstart may have already fired or is\n      // about to fire, and either way the player hasn't seen it yet.\n      // We don't want to fire loadstart prematurely here and cause a\n      // double loadstart so we'll wait and see if it happens between now\n      // and the next loop, and fire it if not.\n      // HOWEVER, we also want to make sure it fires before loadedmetadata\n      // which could also happen between now and the next loop, so we'll\n      // watch for that also.\n      var loadstartFired = false;\n\n      var setLoadstartFired = function setLoadstartFired() {\n        loadstartFired = true;\n      };\n\n      this.on('loadstart', setLoadstartFired);\n\n      var triggerLoadstart = function triggerLoadstart() {\n        // We did miss the original loadstart. Make sure the player\n        // sees loadstart before loadedmetadata\n        if (!loadstartFired) {\n          this.trigger('loadstart');\n        }\n      };\n\n      this.on('loadedmetadata', triggerLoadstart);\n      this.ready(function () {\n        this.off('loadstart', setLoadstartFired);\n        this.off('loadedmetadata', triggerLoadstart);\n\n        if (!loadstartFired) {\n          // We did miss the original native loadstart. Fire it now.\n          this.trigger('loadstart');\n        }\n      });\n      return;\n    } // From here on we know that loadstart already fired and we missed it.\n    // The other readyState events aren't as much of a problem if we double\n    // them, so not going to go to as much trouble as loadstart to prevent\n    // that unless we find reason to.\n\n\n    var eventsToTrigger = ['loadstart']; // loadedmetadata: newly equal to HAVE_METADATA (1) or greater\n\n    eventsToTrigger.push('loadedmetadata'); // loadeddata: newly increased to HAVE_CURRENT_DATA (2) or greater\n\n    if (el.readyState >= 2) {\n      eventsToTrigger.push('loadeddata');\n    } // canplay: newly increased to HAVE_FUTURE_DATA (3) or greater\n\n\n    if (el.readyState >= 3) {\n      eventsToTrigger.push('canplay');\n    } // canplaythrough: newly equal to HAVE_ENOUGH_DATA (4)\n\n\n    if (el.readyState >= 4) {\n      eventsToTrigger.push('canplaythrough');\n    } // We still need to give the player time to add event listeners\n\n\n    this.ready(function () {\n      eventsToTrigger.forEach(function (type) {\n        this.trigger(type);\n      }, this);\n    });\n  }\n  /**\n   * Set whether we are scrubbing or not.\n   * This is used to decide whether we should use `fastSeek` or not.\n   * `fastSeek` is used to provide trick play on Safari browsers.\n   *\n   * @param {boolean} isScrubbing\n   *                  - true for we are currently scrubbing\n   *                  - false for we are no longer scrubbing\n   */\n  ;\n\n  _proto.setScrubbing = function setScrubbing(isScrubbing) {\n    this.isScrubbing_ = isScrubbing;\n  }\n  /**\n   * Get whether we are scrubbing or not.\n   *\n   * @return {boolean} isScrubbing\n   *                  - true for we are currently scrubbing\n   *                  - false for we are no longer scrubbing\n   */\n  ;\n\n  _proto.scrubbing = function scrubbing() {\n    return this.isScrubbing_;\n  }\n  /**\n   * Set current time for the `HTML5` tech.\n   *\n   * @param {number} seconds\n   *        Set the current time of the media to this.\n   */\n  ;\n\n  _proto.setCurrentTime = function setCurrentTime(seconds) {\n    try {\n      if (this.isScrubbing_ && this.el_.fastSeek && IS_ANY_SAFARI) {\n        this.el_.fastSeek(seconds);\n      } else {\n        this.el_.currentTime = seconds;\n      }\n    } catch (e) {\n      log$1(e, 'Video is not ready. (Video.js)'); // this.warning(VideoJS.warnings.videoNotReady);\n    }\n  }\n  /**\n   * Get the current duration of the HTML5 media element.\n   *\n   * @return {number}\n   *         The duration of the media or 0 if there is no duration.\n   */\n  ;\n\n  _proto.duration = function duration() {\n    var _this5 = this;\n\n    // Android Chrome will report duration as Infinity for VOD HLS until after\n    // playback has started, which triggers the live display erroneously.\n    // Return NaN if playback has not started and trigger a durationupdate once\n    // the duration can be reliably known.\n    if (this.el_.duration === Infinity && IS_ANDROID && IS_CHROME && this.el_.currentTime === 0) {\n      // Wait for the first `timeupdate` with currentTime > 0 - there may be\n      // several with 0\n      var checkProgress = function checkProgress() {\n        if (_this5.el_.currentTime > 0) {\n          // Trigger durationchange for genuinely live video\n          if (_this5.el_.duration === Infinity) {\n            _this5.trigger('durationchange');\n          }\n\n          _this5.off('timeupdate', checkProgress);\n        }\n      };\n\n      this.on('timeupdate', checkProgress);\n      return NaN;\n    }\n\n    return this.el_.duration || NaN;\n  }\n  /**\n   * Get the current width of the HTML5 media element.\n   *\n   * @return {number}\n   *         The width of the HTML5 media element.\n   */\n  ;\n\n  _proto.width = function width() {\n    return this.el_.offsetWidth;\n  }\n  /**\n   * Get the current height of the HTML5 media element.\n   *\n   * @return {number}\n   *         The height of the HTML5 media element.\n   */\n  ;\n\n  _proto.height = function height() {\n    return this.el_.offsetHeight;\n  }\n  /**\n   * Proxy iOS `webkitbeginfullscreen` and `webkitendfullscreen` into\n   * `fullscreenchange` event.\n   *\n   * @private\n   * @fires fullscreenchange\n   * @listens webkitendfullscreen\n   * @listens webkitbeginfullscreen\n   * @listens webkitbeginfullscreen\n   */\n  ;\n\n  _proto.proxyWebkitFullscreen_ = function proxyWebkitFullscreen_() {\n    var _this6 = this;\n\n    if (!('webkitDisplayingFullscreen' in this.el_)) {\n      return;\n    }\n\n    var endFn = function endFn() {\n      this.trigger('fullscreenchange', {\n        isFullscreen: false\n      });\n    };\n\n    var beginFn = function beginFn() {\n      if ('webkitPresentationMode' in this.el_ && this.el_.webkitPresentationMode !== 'picture-in-picture') {\n        this.one('webkitendfullscreen', endFn);\n        this.trigger('fullscreenchange', {\n          isFullscreen: true,\n          // set a flag in case another tech triggers fullscreenchange\n          nativeIOSFullscreen: true\n        });\n      }\n    };\n\n    this.on('webkitbeginfullscreen', beginFn);\n    this.on('dispose', function () {\n      _this6.off('webkitbeginfullscreen', beginFn);\n\n      _this6.off('webkitendfullscreen', endFn);\n    });\n  }\n  /**\n   * Check if fullscreen is supported on the current playback device.\n   *\n   * @return {boolean}\n   *         - True if fullscreen is supported.\n   *         - False if fullscreen is not supported.\n   */\n  ;\n\n  _proto.supportsFullScreen = function supportsFullScreen() {\n    if (typeof this.el_.webkitEnterFullScreen === 'function') {\n      var userAgent = window.navigator && window.navigator.userAgent || ''; // Seems to be broken in Chromium/Chrome && Safari in Leopard\n\n      if (/Android/.test(userAgent) || !/Chrome|Mac OS X 10.5/.test(userAgent)) {\n        return true;\n      }\n    }\n\n    return false;\n  }\n  /**\n   * Request that the `HTML5` Tech enter fullscreen.\n   */\n  ;\n\n  _proto.enterFullScreen = function enterFullScreen() {\n    var video = this.el_;\n\n    if (video.paused && video.networkState <= video.HAVE_METADATA) {\n      // attempt to prime the video element for programmatic access\n      // this isn't necessary on the desktop but shouldn't hurt\n      silencePromise(this.el_.play()); // playing and pausing synchronously during the transition to fullscreen\n      // can get iOS ~6.1 devices into a play/pause loop\n\n      this.setTimeout(function () {\n        video.pause();\n\n        try {\n          video.webkitEnterFullScreen();\n        } catch (e) {\n          this.trigger('fullscreenerror', e);\n        }\n      }, 0);\n    } else {\n      try {\n        video.webkitEnterFullScreen();\n      } catch (e) {\n        this.trigger('fullscreenerror', e);\n      }\n    }\n  }\n  /**\n   * Request that the `HTML5` Tech exit fullscreen.\n   */\n  ;\n\n  _proto.exitFullScreen = function exitFullScreen() {\n    if (!this.el_.webkitDisplayingFullscreen) {\n      this.trigger('fullscreenerror', new Error('The video is not fullscreen'));\n      return;\n    }\n\n    this.el_.webkitExitFullScreen();\n  }\n  /**\n   * Create a floating video window always on top of other windows so that users may\n   * continue consuming media while they interact with other content sites, or\n   * applications on their device.\n   *\n   * @see [Spec]{@link https://wicg.github.io/picture-in-picture}\n   *\n   * @return {Promise}\n   *         A promise with a Picture-in-Picture window.\n   */\n  ;\n\n  _proto.requestPictureInPicture = function requestPictureInPicture() {\n    return this.el_.requestPictureInPicture();\n  }\n  /**\n   * A getter/setter for the `Html5` Tech's source object.\n   * > Note: Please use {@link Html5#setSource}\n   *\n   * @param {Tech~SourceObject} [src]\n   *        The source object you want to set on the `HTML5` techs element.\n   *\n   * @return {Tech~SourceObject|undefined}\n   *         - The current source object when a source is not passed in.\n   *         - undefined when setting\n   *\n   * @deprecated Since version 5.\n   */\n  ;\n\n  _proto.src = function src(_src) {\n    if (_src === undefined) {\n      return this.el_.src;\n    } // Setting src through `src` instead of `setSrc` will be deprecated\n\n\n    this.setSrc(_src);\n  }\n  /**\n   * Reset the tech by removing all sources and then calling\n   * {@link Html5.resetMediaElement}.\n   */\n  ;\n\n  _proto.reset = function reset() {\n    Html5.resetMediaElement(this.el_);\n  }\n  /**\n   * Get the current source on the `HTML5` Tech. Falls back to returning the source from\n   * the HTML5 media element.\n   *\n   * @return {Tech~SourceObject}\n   *         The current source object from the HTML5 tech. With a fallback to the\n   *         elements source.\n   */\n  ;\n\n  _proto.currentSrc = function currentSrc() {\n    if (this.currentSource_) {\n      return this.currentSource_.src;\n    }\n\n    return this.el_.currentSrc;\n  }\n  /**\n   * Set controls attribute for the HTML5 media Element.\n   *\n   * @param {string} val\n   *        Value to set the controls attribute to\n   */\n  ;\n\n  _proto.setControls = function setControls(val) {\n    this.el_.controls = !!val;\n  }\n  /**\n   * Create and returns a remote {@link TextTrack} object.\n   *\n   * @param {string} kind\n   *        `TextTrack` kind (subtitles, captions, descriptions, chapters, or metadata)\n   *\n   * @param {string} [label]\n   *        Label to identify the text track\n   *\n   * @param {string} [language]\n   *        Two letter language abbreviation\n   *\n   * @return {TextTrack}\n   *         The TextTrack that gets created.\n   */\n  ;\n\n  _proto.addTextTrack = function addTextTrack(kind, label, language) {\n    if (!this.featuresNativeTextTracks) {\n      return _Tech.prototype.addTextTrack.call(this, kind, label, language);\n    }\n\n    return this.el_.addTextTrack(kind, label, language);\n  }\n  /**\n   * Creates either native TextTrack or an emulated TextTrack depending\n   * on the value of `featuresNativeTextTracks`\n   *\n   * @param {Object} options\n   *        The object should contain the options to initialize the TextTrack with.\n   *\n   * @param {string} [options.kind]\n   *        `TextTrack` kind (subtitles, captions, descriptions, chapters, or metadata).\n   *\n   * @param {string} [options.label]\n   *        Label to identify the text track\n   *\n   * @param {string} [options.language]\n   *        Two letter language abbreviation.\n   *\n   * @param {boolean} [options.default]\n   *        Default this track to on.\n   *\n   * @param {string} [options.id]\n   *        The internal id to assign this track.\n   *\n   * @param {string} [options.src]\n   *        A source url for the track.\n   *\n   * @return {HTMLTrackElement}\n   *         The track element that gets created.\n   */\n  ;\n\n  _proto.createRemoteTextTrack = function createRemoteTextTrack(options) {\n    if (!this.featuresNativeTextTracks) {\n      return _Tech.prototype.createRemoteTextTrack.call(this, options);\n    }\n\n    var htmlTrackElement = document.createElement('track');\n\n    if (options.kind) {\n      htmlTrackElement.kind = options.kind;\n    }\n\n    if (options.label) {\n      htmlTrackElement.label = options.label;\n    }\n\n    if (options.language || options.srclang) {\n      htmlTrackElement.srclang = options.language || options.srclang;\n    }\n\n    if (options[\"default\"]) {\n      htmlTrackElement[\"default\"] = options[\"default\"];\n    }\n\n    if (options.id) {\n      htmlTrackElement.id = options.id;\n    }\n\n    if (options.src) {\n      htmlTrackElement.src = options.src;\n    }\n\n    return htmlTrackElement;\n  }\n  /**\n   * Creates a remote text track object and returns an html track element.\n   *\n   * @param {Object} options The object should contain values for\n   * kind, language, label, and src (location of the WebVTT file)\n   * @param {boolean} [manualCleanup=true] if set to false, the TextTrack will be\n   * automatically removed from the video element whenever the source changes\n   * @return {HTMLTrackElement} An Html Track Element.\n   * This can be an emulated {@link HTMLTrackElement} or a native one.\n   * @deprecated The default value of the \"manualCleanup\" parameter will default\n   * to \"false\" in upcoming versions of Video.js\n   */\n  ;\n\n  _proto.addRemoteTextTrack = function addRemoteTextTrack(options, manualCleanup) {\n    var htmlTrackElement = _Tech.prototype.addRemoteTextTrack.call(this, options, manualCleanup);\n\n    if (this.featuresNativeTextTracks) {\n      this.el().appendChild(htmlTrackElement);\n    }\n\n    return htmlTrackElement;\n  }\n  /**\n   * Remove remote `TextTrack` from `TextTrackList` object\n   *\n   * @param {TextTrack} track\n   *        `TextTrack` object to remove\n   */\n  ;\n\n  _proto.removeRemoteTextTrack = function removeRemoteTextTrack(track) {\n    _Tech.prototype.removeRemoteTextTrack.call(this, track);\n\n    if (this.featuresNativeTextTracks) {\n      var tracks = this.$$('track');\n      var i = tracks.length;\n\n      while (i--) {\n        if (track === tracks[i] || track === tracks[i].track) {\n          this.el().removeChild(tracks[i]);\n        }\n      }\n    }\n  }\n  /**\n   * Gets available media playback quality metrics as specified by the W3C's Media\n   * Playback Quality API.\n   *\n   * @see [Spec]{@link https://wicg.github.io/media-playback-quality}\n   *\n   * @return {Object}\n   *         An object with supported media playback quality metrics\n   */\n  ;\n\n  _proto.getVideoPlaybackQuality = function getVideoPlaybackQuality() {\n    if (typeof this.el().getVideoPlaybackQuality === 'function') {\n      return this.el().getVideoPlaybackQuality();\n    }\n\n    var videoPlaybackQuality = {};\n\n    if (typeof this.el().webkitDroppedFrameCount !== 'undefined' && typeof this.el().webkitDecodedFrameCount !== 'undefined') {\n      videoPlaybackQuality.droppedVideoFrames = this.el().webkitDroppedFrameCount;\n      videoPlaybackQuality.totalVideoFrames = this.el().webkitDecodedFrameCount;\n    }\n\n    if (window.performance && typeof window.performance.now === 'function') {\n      videoPlaybackQuality.creationTime = window.performance.now();\n    } else if (window.performance && window.performance.timing && typeof window.performance.timing.navigationStart === 'number') {\n      videoPlaybackQuality.creationTime = window.Date.now() - window.performance.timing.navigationStart;\n    }\n\n    return videoPlaybackQuality;\n  };\n\n  return Html5;\n}(Tech);\n/* HTML5 Support Testing ---------------------------------------------------- */\n\n/**\n * Element for testing browser HTML5 media capabilities\n *\n * @type {Element}\n * @constant\n * @private\n */\n\n\ndefineLazyProperty(Html5, 'TEST_VID', function () {\n  if (!isReal()) {\n    return;\n  }\n\n  var video = document.createElement('video');\n  var track = document.createElement('track');\n  track.kind = 'captions';\n  track.srclang = 'en';\n  track.label = 'English';\n  video.appendChild(track);\n  return video;\n});\n/**\n * Check if HTML5 media is supported by this browser/device.\n *\n * @return {boolean}\n *         - True if HTML5 media is supported.\n *         - False if HTML5 media is not supported.\n */\n\nHtml5.isSupported = function () {\n  // IE with no Media Player is a LIAR! (#984)\n  try {\n    Html5.TEST_VID.volume = 0.5;\n  } catch (e) {\n    return false;\n  }\n\n  return !!(Html5.TEST_VID && Html5.TEST_VID.canPlayType);\n};\n/**\n * Check if the tech can support the given type\n *\n * @param {string} type\n *        The mimetype to check\n * @return {string} 'probably', 'maybe', or '' (empty string)\n */\n\n\nHtml5.canPlayType = function (type) {\n  return Html5.TEST_VID.canPlayType(type);\n};\n/**\n * Check if the tech can support the given source\n *\n * @param {Object} srcObj\n *        The source object\n * @param {Object} options\n *        The options passed to the tech\n * @return {string} 'probably', 'maybe', or '' (empty string)\n */\n\n\nHtml5.canPlaySource = function (srcObj, options) {\n  return Html5.canPlayType(srcObj.type);\n};\n/**\n * Check if the volume can be changed in this browser/device.\n * Volume cannot be changed in a lot of mobile devices.\n * Specifically, it can't be changed from 1 on iOS.\n *\n * @return {boolean}\n *         - True if volume can be controlled\n *         - False otherwise\n */\n\n\nHtml5.canControlVolume = function () {\n  // IE will error if Windows Media Player not installed #3315\n  try {\n    var volume = Html5.TEST_VID.volume;\n    Html5.TEST_VID.volume = volume / 2 + 0.1;\n    return volume !== Html5.TEST_VID.volume;\n  } catch (e) {\n    return false;\n  }\n};\n/**\n * Check if the volume can be muted in this browser/device.\n * Some devices, e.g. iOS, don't allow changing volume\n * but permits muting/unmuting.\n *\n * @return {bolean}\n *      - True if volume can be muted\n *      - False otherwise\n */\n\n\nHtml5.canMuteVolume = function () {\n  try {\n    var muted = Html5.TEST_VID.muted; // in some versions of iOS muted property doesn't always\n    // work, so we want to set both property and attribute\n\n    Html5.TEST_VID.muted = !muted;\n\n    if (Html5.TEST_VID.muted) {\n      setAttribute(Html5.TEST_VID, 'muted', 'muted');\n    } else {\n      removeAttribute(Html5.TEST_VID, 'muted', 'muted');\n    }\n\n    return muted !== Html5.TEST_VID.muted;\n  } catch (e) {\n    return false;\n  }\n};\n/**\n * Check if the playback rate can be changed in this browser/device.\n *\n * @return {boolean}\n *         - True if playback rate can be controlled\n *         - False otherwise\n */\n\n\nHtml5.canControlPlaybackRate = function () {\n  // Playback rate API is implemented in Android Chrome, but doesn't do anything\n  // https://github.com/videojs/video.js/issues/3180\n  if (IS_ANDROID && IS_CHROME && CHROME_VERSION < 58) {\n    return false;\n  } // IE will error if Windows Media Player not installed #3315\n\n\n  try {\n    var playbackRate = Html5.TEST_VID.playbackRate;\n    Html5.TEST_VID.playbackRate = playbackRate / 2 + 0.1;\n    return playbackRate !== Html5.TEST_VID.playbackRate;\n  } catch (e) {\n    return false;\n  }\n};\n/**\n * Check if we can override a video/audio elements attributes, with\n * Object.defineProperty.\n *\n * @return {boolean}\n *         - True if builtin attributes can be overridden\n *         - False otherwise\n */\n\n\nHtml5.canOverrideAttributes = function () {\n  // if we cannot overwrite the src/innerHTML property, there is no support\n  // iOS 7 safari for instance cannot do this.\n  try {\n    var noop = function noop() {};\n\n    Object.defineProperty(document.createElement('video'), 'src', {\n      get: noop,\n      set: noop\n    });\n    Object.defineProperty(document.createElement('audio'), 'src', {\n      get: noop,\n      set: noop\n    });\n    Object.defineProperty(document.createElement('video'), 'innerHTML', {\n      get: noop,\n      set: noop\n    });\n    Object.defineProperty(document.createElement('audio'), 'innerHTML', {\n      get: noop,\n      set: noop\n    });\n  } catch (e) {\n    return false;\n  }\n\n  return true;\n};\n/**\n * Check to see if native `TextTrack`s are supported by this browser/device.\n *\n * @return {boolean}\n *         - True if native `TextTrack`s are supported.\n *         - False otherwise\n */\n\n\nHtml5.supportsNativeTextTracks = function () {\n  return IS_ANY_SAFARI || IS_IOS && IS_CHROME;\n};\n/**\n * Check to see if native `VideoTrack`s are supported by this browser/device\n *\n * @return {boolean}\n *        - True if native `VideoTrack`s are supported.\n *        - False otherwise\n */\n\n\nHtml5.supportsNativeVideoTracks = function () {\n  return !!(Html5.TEST_VID && Html5.TEST_VID.videoTracks);\n};\n/**\n * Check to see if native `AudioTrack`s are supported by this browser/device\n *\n * @return {boolean}\n *        - True if native `AudioTrack`s are supported.\n *        - False otherwise\n */\n\n\nHtml5.supportsNativeAudioTracks = function () {\n  return !!(Html5.TEST_VID && Html5.TEST_VID.audioTracks);\n};\n/**\n * An array of events available on the Html5 tech.\n *\n * @private\n * @type {Array}\n */\n\n\nHtml5.Events = ['loadstart', 'suspend', 'abort', 'error', 'emptied', 'stalled', 'loadedmetadata', 'loadeddata', 'canplay', 'canplaythrough', 'playing', 'waiting', 'seeking', 'seeked', 'ended', 'durationchange', 'timeupdate', 'progress', 'play', 'pause', 'ratechange', 'resize', 'volumechange'];\n/**\n * Boolean indicating whether the `Tech` supports volume control.\n *\n * @type {boolean}\n * @default {@link Html5.canControlVolume}\n */\n\n/**\n * Boolean indicating whether the `Tech` supports muting volume.\n *\n * @type {bolean}\n * @default {@link Html5.canMuteVolume}\n */\n\n/**\n * Boolean indicating whether the `Tech` supports changing the speed at which the media\n * plays. Examples:\n *   - Set player to play 2x (twice) as fast\n *   - Set player to play 0.5x (half) as fast\n *\n * @type {boolean}\n * @default {@link Html5.canControlPlaybackRate}\n */\n\n/**\n * Boolean indicating whether the `Tech` supports the `sourceset` event.\n *\n * @type {boolean}\n * @default\n */\n\n/**\n * Boolean indicating whether the `HTML5` tech currently supports native `TextTrack`s.\n *\n * @type {boolean}\n * @default {@link Html5.supportsNativeTextTracks}\n */\n\n/**\n * Boolean indicating whether the `HTML5` tech currently supports native `VideoTrack`s.\n *\n * @type {boolean}\n * @default {@link Html5.supportsNativeVideoTracks}\n */\n\n/**\n * Boolean indicating whether the `HTML5` tech currently supports native `AudioTrack`s.\n *\n * @type {boolean}\n * @default {@link Html5.supportsNativeAudioTracks}\n */\n\n[['featuresVolumeControl', 'canControlVolume'], ['featuresMuteControl', 'canMuteVolume'], ['featuresPlaybackRate', 'canControlPlaybackRate'], ['featuresSourceset', 'canOverrideAttributes'], ['featuresNativeTextTracks', 'supportsNativeTextTracks'], ['featuresNativeVideoTracks', 'supportsNativeVideoTracks'], ['featuresNativeAudioTracks', 'supportsNativeAudioTracks']].forEach(function (_ref) {\n  var key = _ref[0],\n      fn = _ref[1];\n  defineLazyProperty(Html5.prototype, key, function () {\n    return Html5[fn]();\n  }, true);\n});\n/**\n * Boolean indicating whether the `HTML5` tech currently supports the media element\n * moving in the DOM. iOS breaks if you move the media element, so this is set this to\n * false there. Everywhere else this should be true.\n *\n * @type {boolean}\n * @default\n */\n\nHtml5.prototype.movingMediaElementInDOM = !IS_IOS; // TODO: Previous comment: No longer appears to be used. Can probably be removed.\n//       Is this true?\n\n/**\n * Boolean indicating whether the `HTML5` tech currently supports automatic media resize\n * when going into fullscreen.\n *\n * @type {boolean}\n * @default\n */\n\nHtml5.prototype.featuresFullscreenResize = true;\n/**\n * Boolean indicating whether the `HTML5` tech currently supports the progress event.\n * If this is false, manual `progress` events will be triggered instead.\n *\n * @type {boolean}\n * @default\n */\n\nHtml5.prototype.featuresProgressEvents = true;\n/**\n * Boolean indicating whether the `HTML5` tech currently supports the timeupdate event.\n * If this is false, manual `timeupdate` events will be triggered instead.\n *\n * @default\n */\n\nHtml5.prototype.featuresTimeupdateEvents = true; // HTML5 Feature detection and Device Fixes --------------------------------- //\n\nvar canPlayType;\n\nHtml5.patchCanPlayType = function () {\n  // Android 4.0 and above can play HLS to some extent but it reports being unable to do so\n  // Firefox and Chrome report correctly\n  if (ANDROID_VERSION >= 4.0 && !IS_FIREFOX && !IS_CHROME) {\n    canPlayType = Html5.TEST_VID && Html5.TEST_VID.constructor.prototype.canPlayType;\n\n    Html5.TEST_VID.constructor.prototype.canPlayType = function (type) {\n      var mpegurlRE = /^application\\/(?:x-|vnd\\.apple\\.)mpegurl/i;\n\n      if (type && mpegurlRE.test(type)) {\n        return 'maybe';\n      }\n\n      return canPlayType.call(this, type);\n    };\n  }\n};\n\nHtml5.unpatchCanPlayType = function () {\n  var r = Html5.TEST_VID.constructor.prototype.canPlayType;\n\n  if (canPlayType) {\n    Html5.TEST_VID.constructor.prototype.canPlayType = canPlayType;\n  }\n\n  return r;\n}; // by default, patch the media element\n\n\nHtml5.patchCanPlayType();\n\nHtml5.disposeMediaElement = function (el) {\n  if (!el) {\n    return;\n  }\n\n  if (el.parentNode) {\n    el.parentNode.removeChild(el);\n  } // remove any child track or source nodes to prevent their loading\n\n\n  while (el.hasChildNodes()) {\n    el.removeChild(el.firstChild);\n  } // remove any src reference. not setting `src=''` because that causes a warning\n  // in firefox\n\n\n  el.removeAttribute('src'); // force the media element to update its loading state by calling load()\n  // however IE on Windows 7N has a bug that throws an error so need a try/catch (#793)\n\n  if (typeof el.load === 'function') {\n    // wrapping in an iife so it's not deoptimized (#1060#discussion_r10324473)\n    (function () {\n      try {\n        el.load();\n      } catch (e) {// not supported\n      }\n    })();\n  }\n};\n\nHtml5.resetMediaElement = function (el) {\n  if (!el) {\n    return;\n  }\n\n  var sources = el.querySelectorAll('source');\n  var i = sources.length;\n\n  while (i--) {\n    el.removeChild(sources[i]);\n  } // remove any src reference.\n  // not setting `src=''` because that throws an error\n\n\n  el.removeAttribute('src');\n\n  if (typeof el.load === 'function') {\n    // wrapping in an iife so it's not deoptimized (#1060#discussion_r10324473)\n    (function () {\n      try {\n        el.load();\n      } catch (e) {// satisfy linter\n      }\n    })();\n  }\n};\n/* Native HTML5 element property wrapping ----------------------------------- */\n// Wrap native boolean attributes with getters that check both property and attribute\n// The list is as followed:\n// muted, defaultMuted, autoplay, controls, loop, playsinline\n\n\n[\n/**\n * Get the value of `muted` from the media element. `muted` indicates\n * that the volume for the media should be set to silent. This does not actually change\n * the `volume` attribute.\n *\n * @method Html5#muted\n * @return {boolean}\n *         - True if the value of `volume` should be ignored and the audio set to silent.\n *         - False if the value of `volume` should be used.\n *\n * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-muted}\n */\n'muted',\n/**\n * Get the value of `defaultMuted` from the media element. `defaultMuted` indicates\n * whether the media should start muted or not. Only changes the default state of the\n * media. `muted` and `defaultMuted` can have different values. {@link Html5#muted} indicates the\n * current state.\n *\n * @method Html5#defaultMuted\n * @return {boolean}\n *         - The value of `defaultMuted` from the media element.\n *         - True indicates that the media should start muted.\n *         - False indicates that the media should not start muted\n *\n * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-defaultmuted}\n */\n'defaultMuted',\n/**\n * Get the value of `autoplay` from the media element. `autoplay` indicates\n * that the media should start to play as soon as the page is ready.\n *\n * @method Html5#autoplay\n * @return {boolean}\n *         - The value of `autoplay` from the media element.\n *         - True indicates that the media should start as soon as the page loads.\n *         - False indicates that the media should not start as soon as the page loads.\n *\n * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#attr-media-autoplay}\n */\n'autoplay',\n/**\n * Get the value of `controls` from the media element. `controls` indicates\n * whether the native media controls should be shown or hidden.\n *\n * @method Html5#controls\n * @return {boolean}\n *         - The value of `controls` from the media element.\n *         - True indicates that native controls should be showing.\n *         - False indicates that native controls should be hidden.\n *\n * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#attr-media-controls}\n */\n'controls',\n/**\n * Get the value of `loop` from the media element. `loop` indicates\n * that the media should return to the start of the media and continue playing once\n * it reaches the end.\n *\n * @method Html5#loop\n * @return {boolean}\n *         - The value of `loop` from the media element.\n *         - True indicates that playback should seek back to start once\n *           the end of a media is reached.\n *         - False indicates that playback should not loop back to the start when the\n *           end of the media is reached.\n *\n * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#attr-media-loop}\n */\n'loop',\n/**\n * Get the value of `playsinline` from the media element. `playsinline` indicates\n * to the browser that non-fullscreen playback is preferred when fullscreen\n * playback is the native default, such as in iOS Safari.\n *\n * @method Html5#playsinline\n * @return {boolean}\n *         - The value of `playsinline` from the media element.\n *         - True indicates that the media should play inline.\n *         - False indicates that the media should not play inline.\n *\n * @see [Spec]{@link https://html.spec.whatwg.org/#attr-video-playsinline}\n */\n'playsinline'].forEach(function (prop) {\n  Html5.prototype[prop] = function () {\n    return this.el_[prop] || this.el_.hasAttribute(prop);\n  };\n}); // Wrap native boolean attributes with setters that set both property and attribute\n// The list is as followed:\n// setMuted, setDefaultMuted, setAutoplay, setLoop, setPlaysinline\n// setControls is special-cased above\n\n[\n/**\n * Set the value of `muted` on the media element. `muted` indicates that the current\n * audio level should be silent.\n *\n * @method Html5#setMuted\n * @param {boolean} muted\n *        - True if the audio should be set to silent\n *        - False otherwise\n *\n * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-muted}\n */\n'muted',\n/**\n * Set the value of `defaultMuted` on the media element. `defaultMuted` indicates that the current\n * audio level should be silent, but will only effect the muted level on initial playback..\n *\n * @method Html5.prototype.setDefaultMuted\n * @param {boolean} defaultMuted\n *        - True if the audio should be set to silent\n *        - False otherwise\n *\n * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-defaultmuted}\n */\n'defaultMuted',\n/**\n * Set the value of `autoplay` on the media element. `autoplay` indicates\n * that the media should start to play as soon as the page is ready.\n *\n * @method Html5#setAutoplay\n * @param {boolean} autoplay\n *         - True indicates that the media should start as soon as the page loads.\n *         - False indicates that the media should not start as soon as the page loads.\n *\n * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#attr-media-autoplay}\n */\n'autoplay',\n/**\n * Set the value of `loop` on the media element. `loop` indicates\n * that the media should return to the start of the media and continue playing once\n * it reaches the end.\n *\n * @method Html5#setLoop\n * @param {boolean} loop\n *         - True indicates that playback should seek back to start once\n *           the end of a media is reached.\n *         - False indicates that playback should not loop back to the start when the\n *           end of the media is reached.\n *\n * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#attr-media-loop}\n */\n'loop',\n/**\n * Set the value of `playsinline` from the media element. `playsinline` indicates\n * to the browser that non-fullscreen playback is preferred when fullscreen\n * playback is the native default, such as in iOS Safari.\n *\n * @method Html5#setPlaysinline\n * @param {boolean} playsinline\n *         - True indicates that the media should play inline.\n *         - False indicates that the media should not play inline.\n *\n * @see [Spec]{@link https://html.spec.whatwg.org/#attr-video-playsinline}\n */\n'playsinline'].forEach(function (prop) {\n  Html5.prototype['set' + toTitleCase$1(prop)] = function (v) {\n    this.el_[prop] = v;\n\n    if (v) {\n      this.el_.setAttribute(prop, prop);\n    } else {\n      this.el_.removeAttribute(prop);\n    }\n  };\n}); // Wrap native properties with a getter\n// The list is as followed\n// paused, currentTime, buffered, volume, poster, preload, error, seeking\n// seekable, ended, playbackRate, defaultPlaybackRate, disablePictureInPicture\n// played, networkState, readyState, videoWidth, videoHeight, crossOrigin\n\n[\n/**\n * Get the value of `paused` from the media element. `paused` indicates whether the media element\n * is currently paused or not.\n *\n * @method Html5#paused\n * @return {boolean}\n *         The value of `paused` from the media element.\n *\n * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-paused}\n */\n'paused',\n/**\n * Get the value of `currentTime` from the media element. `currentTime` indicates\n * the current second that the media is at in playback.\n *\n * @method Html5#currentTime\n * @return {number}\n *         The value of `currentTime` from the media element.\n *\n * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-currenttime}\n */\n'currentTime',\n/**\n * Get the value of `buffered` from the media element. `buffered` is a `TimeRange`\n * object that represents the parts of the media that are already downloaded and\n * available for playback.\n *\n * @method Html5#buffered\n * @return {TimeRange}\n *         The value of `buffered` from the media element.\n *\n * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-buffered}\n */\n'buffered',\n/**\n * Get the value of `volume` from the media element. `volume` indicates\n * the current playback volume of audio for a media. `volume` will be a value from 0\n * (silent) to 1 (loudest and default).\n *\n * @method Html5#volume\n * @return {number}\n *         The value of `volume` from the media element. Value will be between 0-1.\n *\n * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-a-volume}\n */\n'volume',\n/**\n * Get the value of `poster` from the media element. `poster` indicates\n * that the url of an image file that can/will be shown when no media data is available.\n *\n * @method Html5#poster\n * @return {string}\n *         The value of `poster` from the media element. Value will be a url to an\n *         image.\n *\n * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#attr-video-poster}\n */\n'poster',\n/**\n * Get the value of `preload` from the media element. `preload` indicates\n * what should download before the media is interacted with. It can have the following\n * values:\n * - none: nothing should be downloaded\n * - metadata: poster and the first few frames of the media may be downloaded to get\n *   media dimensions and other metadata\n * - auto: allow the media and metadata for the media to be downloaded before\n *    interaction\n *\n * @method Html5#preload\n * @return {string}\n *         The value of `preload` from the media element. Will be 'none', 'metadata',\n *         or 'auto'.\n *\n * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#attr-media-preload}\n */\n'preload',\n/**\n * Get the value of the `error` from the media element. `error` indicates any\n * MediaError that may have occurred during playback. If error returns null there is no\n * current error.\n *\n * @method Html5#error\n * @return {MediaError|null}\n *         The value of `error` from the media element. Will be `MediaError` if there\n *         is a current error and null otherwise.\n *\n * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-error}\n */\n'error',\n/**\n * Get the value of `seeking` from the media element. `seeking` indicates whether the\n * media is currently seeking to a new position or not.\n *\n * @method Html5#seeking\n * @return {boolean}\n *         - The value of `seeking` from the media element.\n *         - True indicates that the media is currently seeking to a new position.\n *         - False indicates that the media is not seeking to a new position at this time.\n *\n * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-seeking}\n */\n'seeking',\n/**\n * Get the value of `seekable` from the media element. `seekable` returns a\n * `TimeRange` object indicating ranges of time that can currently be `seeked` to.\n *\n * @method Html5#seekable\n * @return {TimeRange}\n *         The value of `seekable` from the media element. A `TimeRange` object\n *         indicating the current ranges of time that can be seeked to.\n *\n * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-seekable}\n */\n'seekable',\n/**\n * Get the value of `ended` from the media element. `ended` indicates whether\n * the media has reached the end or not.\n *\n * @method Html5#ended\n * @return {boolean}\n *         - The value of `ended` from the media element.\n *         - True indicates that the media has ended.\n *         - False indicates that the media has not ended.\n *\n * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-ended}\n */\n'ended',\n/**\n * Get the value of `playbackRate` from the media element. `playbackRate` indicates\n * the rate at which the media is currently playing back. Examples:\n *   - if playbackRate is set to 2, media will play twice as fast.\n *   - if playbackRate is set to 0.5, media will play half as fast.\n *\n * @method Html5#playbackRate\n * @return {number}\n *         The value of `playbackRate` from the media element. A number indicating\n *         the current playback speed of the media, where 1 is normal speed.\n *\n * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-playbackrate}\n */\n'playbackRate',\n/**\n * Get the value of `defaultPlaybackRate` from the media element. `defaultPlaybackRate` indicates\n * the rate at which the media is currently playing back. This value will not indicate the current\n * `playbackRate` after playback has started, use {@link Html5#playbackRate} for that.\n *\n * Examples:\n *   - if defaultPlaybackRate is set to 2, media will play twice as fast.\n *   - if defaultPlaybackRate is set to 0.5, media will play half as fast.\n *\n * @method Html5.prototype.defaultPlaybackRate\n * @return {number}\n *         The value of `defaultPlaybackRate` from the media element. A number indicating\n *         the current playback speed of the media, where 1 is normal speed.\n *\n * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-playbackrate}\n */\n'defaultPlaybackRate',\n/**\n * Get the value of 'disablePictureInPicture' from the video element.\n *\n * @method Html5#disablePictureInPicture\n * @return {boolean} value\n *         - The value of `disablePictureInPicture` from the video element.\n *         - True indicates that the video can't be played in Picture-In-Picture mode\n *         - False indicates that the video can be played in Picture-In-Picture mode\n *\n * @see [Spec]{@link https://w3c.github.io/picture-in-picture/#disable-pip}\n */\n'disablePictureInPicture',\n/**\n * Get the value of `played` from the media element. `played` returns a `TimeRange`\n * object representing points in the media timeline that have been played.\n *\n * @method Html5#played\n * @return {TimeRange}\n *         The value of `played` from the media element. A `TimeRange` object indicating\n *         the ranges of time that have been played.\n *\n * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-played}\n */\n'played',\n/**\n * Get the value of `networkState` from the media element. `networkState` indicates\n * the current network state. It returns an enumeration from the following list:\n * - 0: NETWORK_EMPTY\n * - 1: NETWORK_IDLE\n * - 2: NETWORK_LOADING\n * - 3: NETWORK_NO_SOURCE\n *\n * @method Html5#networkState\n * @return {number}\n *         The value of `networkState` from the media element. This will be a number\n *         from the list in the description.\n *\n * @see [Spec] {@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-networkstate}\n */\n'networkState',\n/**\n * Get the value of `readyState` from the media element. `readyState` indicates\n * the current state of the media element. It returns an enumeration from the\n * following list:\n * - 0: HAVE_NOTHING\n * - 1: HAVE_METADATA\n * - 2: HAVE_CURRENT_DATA\n * - 3: HAVE_FUTURE_DATA\n * - 4: HAVE_ENOUGH_DATA\n *\n * @method Html5#readyState\n * @return {number}\n *         The value of `readyState` from the media element. This will be a number\n *         from the list in the description.\n *\n * @see [Spec] {@link https://www.w3.org/TR/html5/embedded-content-0.html#ready-states}\n */\n'readyState',\n/**\n * Get the value of `videoWidth` from the video element. `videoWidth` indicates\n * the current width of the video in css pixels.\n *\n * @method Html5#videoWidth\n * @return {number}\n *         The value of `videoWidth` from the video element. This will be a number\n *         in css pixels.\n *\n * @see [Spec] {@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-video-videowidth}\n */\n'videoWidth',\n/**\n * Get the value of `videoHeight` from the video element. `videoHeight` indicates\n * the current height of the video in css pixels.\n *\n * @method Html5#videoHeight\n * @return {number}\n *         The value of `videoHeight` from the video element. This will be a number\n *         in css pixels.\n *\n * @see [Spec] {@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-video-videowidth}\n */\n'videoHeight',\n/**\n * Get the value of `crossOrigin` from the media element. `crossOrigin` indicates\n * to the browser that should sent the cookies along with the requests for the\n * different assets/playlists\n *\n * @method Html5#crossOrigin\n * @return {string}\n *         - anonymous indicates that the media should not sent cookies.\n *         - use-credentials indicates that the media should sent cookies along the requests.\n *\n * @see [Spec]{@link https://html.spec.whatwg.org/#attr-media-crossorigin}\n */\n'crossOrigin'].forEach(function (prop) {\n  Html5.prototype[prop] = function () {\n    return this.el_[prop];\n  };\n}); // Wrap native properties with a setter in this format:\n// set + toTitleCase(name)\n// The list is as follows:\n// setVolume, setSrc, setPoster, setPreload, setPlaybackRate, setDefaultPlaybackRate,\n// setDisablePictureInPicture, setCrossOrigin\n\n[\n/**\n * Set the value of `volume` on the media element. `volume` indicates the current\n * audio level as a percentage in decimal form. This means that 1 is 100%, 0.5 is 50%, and\n * so on.\n *\n * @method Html5#setVolume\n * @param {number} percentAsDecimal\n *        The volume percent as a decimal. Valid range is from 0-1.\n *\n * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-a-volume}\n */\n'volume',\n/**\n * Set the value of `src` on the media element. `src` indicates the current\n * {@link Tech~SourceObject} for the media.\n *\n * @method Html5#setSrc\n * @param {Tech~SourceObject} src\n *        The source object to set as the current source.\n *\n * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-src}\n */\n'src',\n/**\n * Set the value of `poster` on the media element. `poster` is the url to\n * an image file that can/will be shown when no media data is available.\n *\n * @method Html5#setPoster\n * @param {string} poster\n *        The url to an image that should be used as the `poster` for the media\n *        element.\n *\n * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#attr-media-poster}\n */\n'poster',\n/**\n * Set the value of `preload` on the media element. `preload` indicates\n * what should download before the media is interacted with. It can have the following\n * values:\n * - none: nothing should be downloaded\n * - metadata: poster and the first few frames of the media may be downloaded to get\n *   media dimensions and other metadata\n * - auto: allow the media and metadata for the media to be downloaded before\n *    interaction\n *\n * @method Html5#setPreload\n * @param {string} preload\n *         The value of `preload` to set on the media element. Must be 'none', 'metadata',\n *         or 'auto'.\n *\n * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#attr-media-preload}\n */\n'preload',\n/**\n * Set the value of `playbackRate` on the media element. `playbackRate` indicates\n * the rate at which the media should play back. Examples:\n *   - if playbackRate is set to 2, media will play twice as fast.\n *   - if playbackRate is set to 0.5, media will play half as fast.\n *\n * @method Html5#setPlaybackRate\n * @return {number}\n *         The value of `playbackRate` from the media element. A number indicating\n *         the current playback speed of the media, where 1 is normal speed.\n *\n * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-playbackrate}\n */\n'playbackRate',\n/**\n * Set the value of `defaultPlaybackRate` on the media element. `defaultPlaybackRate` indicates\n * the rate at which the media should play back upon initial startup. Changing this value\n * after a video has started will do nothing. Instead you should used {@link Html5#setPlaybackRate}.\n *\n * Example Values:\n *   - if playbackRate is set to 2, media will play twice as fast.\n *   - if playbackRate is set to 0.5, media will play half as fast.\n *\n * @method Html5.prototype.setDefaultPlaybackRate\n * @return {number}\n *         The value of `defaultPlaybackRate` from the media element. A number indicating\n *         the current playback speed of the media, where 1 is normal speed.\n *\n * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-defaultplaybackrate}\n */\n'defaultPlaybackRate',\n/**\n * Prevents the browser from suggesting a Picture-in-Picture context menu\n * or to request Picture-in-Picture automatically in some cases.\n *\n * @method Html5#setDisablePictureInPicture\n * @param {boolean} value\n *         The true value will disable Picture-in-Picture mode.\n *\n * @see [Spec]{@link https://w3c.github.io/picture-in-picture/#disable-pip}\n */\n'disablePictureInPicture',\n/**\n * Set the value of `crossOrigin` from the media element. `crossOrigin` indicates\n * to the browser that should sent the cookies along with the requests for the\n * different assets/playlists\n *\n * @method Html5#setCrossOrigin\n * @param {string} crossOrigin\n *         - anonymous indicates that the media should not sent cookies.\n *         - use-credentials indicates that the media should sent cookies along the requests.\n *\n * @see [Spec]{@link https://html.spec.whatwg.org/#attr-media-crossorigin}\n */\n'crossOrigin'].forEach(function (prop) {\n  Html5.prototype['set' + toTitleCase$1(prop)] = function (v) {\n    this.el_[prop] = v;\n  };\n}); // wrap native functions with a function\n// The list is as follows:\n// pause, load, play\n\n[\n/**\n * A wrapper around the media elements `pause` function. This will call the `HTML5`\n * media elements `pause` function.\n *\n * @method Html5#pause\n * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-pause}\n */\n'pause',\n/**\n * A wrapper around the media elements `load` function. This will call the `HTML5`s\n * media element `load` function.\n *\n * @method Html5#load\n * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-load}\n */\n'load',\n/**\n * A wrapper around the media elements `play` function. This will call the `HTML5`s\n * media element `play` function.\n *\n * @method Html5#play\n * @see [Spec]{@link https://www.w3.org/TR/html5/embedded-content-0.html#dom-media-play}\n */\n'play'].forEach(function (prop) {\n  Html5.prototype[prop] = function () {\n    return this.el_[prop]();\n  };\n});\nTech.withSourceHandlers(Html5);\n/**\n * Native source handler for Html5, simply passes the source to the media element.\n *\n * @property {Tech~SourceObject} source\n *        The source object\n *\n * @property {Html5} tech\n *        The instance of the HTML5 tech.\n */\n\nHtml5.nativeSourceHandler = {};\n/**\n * Check if the media element can play the given mime type.\n *\n * @param {string} type\n *        The mimetype to check\n *\n * @return {string}\n *         'probably', 'maybe', or '' (empty string)\n */\n\nHtml5.nativeSourceHandler.canPlayType = function (type) {\n  // IE without MediaPlayer throws an error (#519)\n  try {\n    return Html5.TEST_VID.canPlayType(type);\n  } catch (e) {\n    return '';\n  }\n};\n/**\n * Check if the media element can handle a source natively.\n *\n * @param {Tech~SourceObject} source\n *         The source object\n *\n * @param {Object} [options]\n *         Options to be passed to the tech.\n *\n * @return {string}\n *         'probably', 'maybe', or '' (empty string).\n */\n\n\nHtml5.nativeSourceHandler.canHandleSource = function (source, options) {\n  // If a type was provided we should rely on that\n  if (source.type) {\n    return Html5.nativeSourceHandler.canPlayType(source.type); // If no type, fall back to checking 'video/[EXTENSION]'\n  } else if (source.src) {\n    var ext = getFileExtension(source.src);\n    return Html5.nativeSourceHandler.canPlayType(\"video/\" + ext);\n  }\n\n  return '';\n};\n/**\n * Pass the source to the native media element.\n *\n * @param {Tech~SourceObject} source\n *        The source object\n *\n * @param {Html5} tech\n *        The instance of the Html5 tech\n *\n * @param {Object} [options]\n *        The options to pass to the source\n */\n\n\nHtml5.nativeSourceHandler.handleSource = function (source, tech, options) {\n  tech.setSrc(source.src);\n};\n/**\n * A noop for the native dispose function, as cleanup is not needed.\n */\n\n\nHtml5.nativeSourceHandler.dispose = function () {}; // Register the native source handler\n\n\nHtml5.registerSourceHandler(Html5.nativeSourceHandler);\nTech.registerTech('Html5', Html5);\n\n// on the player when they happen\n\nvar TECH_EVENTS_RETRIGGER = [\n/**\n * Fired while the user agent is downloading media data.\n *\n * @event Player#progress\n * @type {EventTarget~Event}\n */\n\n/**\n * Retrigger the `progress` event that was triggered by the {@link Tech}.\n *\n * @private\n * @method Player#handleTechProgress_\n * @fires Player#progress\n * @listens Tech#progress\n */\n'progress',\n/**\n * Fires when the loading of an audio/video is aborted.\n *\n * @event Player#abort\n * @type {EventTarget~Event}\n */\n\n/**\n * Retrigger the `abort` event that was triggered by the {@link Tech}.\n *\n * @private\n * @method Player#handleTechAbort_\n * @fires Player#abort\n * @listens Tech#abort\n */\n'abort',\n/**\n * Fires when the browser is intentionally not getting media data.\n *\n * @event Player#suspend\n * @type {EventTarget~Event}\n */\n\n/**\n * Retrigger the `suspend` event that was triggered by the {@link Tech}.\n *\n * @private\n * @method Player#handleTechSuspend_\n * @fires Player#suspend\n * @listens Tech#suspend\n */\n'suspend',\n/**\n * Fires when the current playlist is empty.\n *\n * @event Player#emptied\n * @type {EventTarget~Event}\n */\n\n/**\n * Retrigger the `emptied` event that was triggered by the {@link Tech}.\n *\n * @private\n * @method Player#handleTechEmptied_\n * @fires Player#emptied\n * @listens Tech#emptied\n */\n'emptied',\n/**\n * Fires when the browser is trying to get media data, but data is not available.\n *\n * @event Player#stalled\n * @type {EventTarget~Event}\n */\n\n/**\n * Retrigger the `stalled` event that was triggered by the {@link Tech}.\n *\n * @private\n * @method Player#handleTechStalled_\n * @fires Player#stalled\n * @listens Tech#stalled\n */\n'stalled',\n/**\n * Fires when the browser has loaded meta data for the audio/video.\n *\n * @event Player#loadedmetadata\n * @type {EventTarget~Event}\n */\n\n/**\n * Retrigger the `stalled` event that was triggered by the {@link Tech}.\n *\n * @private\n * @method Player#handleTechLoadedmetadata_\n * @fires Player#loadedmetadata\n * @listens Tech#loadedmetadata\n */\n'loadedmetadata',\n/**\n * Fires when the browser has loaded the current frame of the audio/video.\n *\n * @event Player#loadeddata\n * @type {event}\n */\n\n/**\n * Retrigger the `loadeddata` event that was triggered by the {@link Tech}.\n *\n * @private\n * @method Player#handleTechLoaddeddata_\n * @fires Player#loadeddata\n * @listens Tech#loadeddata\n */\n'loadeddata',\n/**\n * Fires when the current playback position has changed.\n *\n * @event Player#timeupdate\n * @type {event}\n */\n\n/**\n * Retrigger the `timeupdate` event that was triggered by the {@link Tech}.\n *\n * @private\n * @method Player#handleTechTimeUpdate_\n * @fires Player#timeupdate\n * @listens Tech#timeupdate\n */\n'timeupdate',\n/**\n * Fires when the video's intrinsic dimensions change\n *\n * @event Player#resize\n * @type {event}\n */\n\n/**\n * Retrigger the `resize` event that was triggered by the {@link Tech}.\n *\n * @private\n * @method Player#handleTechResize_\n * @fires Player#resize\n * @listens Tech#resize\n */\n'resize',\n/**\n * Fires when the volume has been changed\n *\n * @event Player#volumechange\n * @type {event}\n */\n\n/**\n * Retrigger the `volumechange` event that was triggered by the {@link Tech}.\n *\n * @private\n * @method Player#handleTechVolumechange_\n * @fires Player#volumechange\n * @listens Tech#volumechange\n */\n'volumechange',\n/**\n * Fires when the text track has been changed\n *\n * @event Player#texttrackchange\n * @type {event}\n */\n\n/**\n * Retrigger the `texttrackchange` event that was triggered by the {@link Tech}.\n *\n * @private\n * @method Player#handleTechTexttrackchange_\n * @fires Player#texttrackchange\n * @listens Tech#texttrackchange\n */\n'texttrackchange']; // events to queue when playback rate is zero\n// this is a hash for the sole purpose of mapping non-camel-cased event names\n// to camel-cased function names\n\nvar TECH_EVENTS_QUEUE = {\n  canplay: 'CanPlay',\n  canplaythrough: 'CanPlayThrough',\n  playing: 'Playing',\n  seeked: 'Seeked'\n};\nvar BREAKPOINT_ORDER = ['tiny', 'xsmall', 'small', 'medium', 'large', 'xlarge', 'huge'];\nvar BREAKPOINT_CLASSES = {}; // grep: vjs-layout-tiny\n// grep: vjs-layout-x-small\n// grep: vjs-layout-small\n// grep: vjs-layout-medium\n// grep: vjs-layout-large\n// grep: vjs-layout-x-large\n// grep: vjs-layout-huge\n\nBREAKPOINT_ORDER.forEach(function (k) {\n  var v = k.charAt(0) === 'x' ? \"x-\" + k.substring(1) : k;\n  BREAKPOINT_CLASSES[k] = \"vjs-layout-\" + v;\n});\nvar DEFAULT_BREAKPOINTS = {\n  tiny: 210,\n  xsmall: 320,\n  small: 425,\n  medium: 768,\n  large: 1440,\n  xlarge: 2560,\n  huge: Infinity\n};\n/**\n * An instance of the `Player` class is created when any of the Video.js setup methods\n * are used to initialize a video.\n *\n * After an instance has been created it can be accessed globally in two ways:\n * 1. By calling `videojs('example_video_1');`\n * 2. By using it directly via  `videojs.players.example_video_1;`\n *\n * @extends Component\n */\n\nvar Player = /*#__PURE__*/function (_Component) {\n  _inheritsLoose(Player, _Component);\n\n  /**\n   * Create an instance of this class.\n   *\n   * @param {Element} tag\n   *        The original video DOM element used for configuring options.\n   *\n   * @param {Object} [options]\n   *        Object of option names and values.\n   *\n   * @param {Component~ReadyCallback} [ready]\n   *        Ready callback function.\n   */\n  function Player(tag, options, ready) {\n    var _this;\n\n    // Make sure tag ID exists\n    tag.id = tag.id || options.id || \"vjs_video_\" + newGUID(); // Set Options\n    // The options argument overrides options set in the video tag\n    // which overrides globally set options.\n    // This latter part coincides with the load order\n    // (tag must exist before Player)\n\n    options = assign(Player.getTagSettings(tag), options); // Delay the initialization of children because we need to set up\n    // player properties first, and can't use `this` before `super()`\n\n    options.initChildren = false; // Same with creating the element\n\n    options.createEl = false; // don't auto mixin the evented mixin\n\n    options.evented = false; // we don't want the player to report touch activity on itself\n    // see enableTouchActivity in Component\n\n    options.reportTouchActivity = false; // If language is not set, get the closest lang attribute\n\n    if (!options.language) {\n      if (typeof tag.closest === 'function') {\n        var closest = tag.closest('[lang]');\n\n        if (closest && closest.getAttribute) {\n          options.language = closest.getAttribute('lang');\n        }\n      } else {\n        var element = tag;\n\n        while (element && element.nodeType === 1) {\n          if (getAttributes(element).hasOwnProperty('lang')) {\n            options.language = element.getAttribute('lang');\n            break;\n          }\n\n          element = element.parentNode;\n        }\n      }\n    } // Run base component initializing with new options\n\n\n    _this = _Component.call(this, null, options, ready) || this; // Create bound methods for document listeners.\n\n    _this.boundDocumentFullscreenChange_ = function (e) {\n      return _this.documentFullscreenChange_(e);\n    };\n\n    _this.boundFullWindowOnEscKey_ = function (e) {\n      return _this.fullWindowOnEscKey(e);\n    };\n\n    _this.boundUpdateStyleEl_ = function (e) {\n      return _this.updateStyleEl_(e);\n    };\n\n    _this.boundApplyInitTime_ = function (e) {\n      return _this.applyInitTime_(e);\n    };\n\n    _this.boundUpdateCurrentBreakpoint_ = function (e) {\n      return _this.updateCurrentBreakpoint_(e);\n    };\n\n    _this.boundHandleTechClick_ = function (e) {\n      return _this.handleTechClick_(e);\n    };\n\n    _this.boundHandleTechDoubleClick_ = function (e) {\n      return _this.handleTechDoubleClick_(e);\n    };\n\n    _this.boundHandleTechTouchStart_ = function (e) {\n      return _this.handleTechTouchStart_(e);\n    };\n\n    _this.boundHandleTechTouchMove_ = function (e) {\n      return _this.handleTechTouchMove_(e);\n    };\n\n    _this.boundHandleTechTouchEnd_ = function (e) {\n      return _this.handleTechTouchEnd_(e);\n    };\n\n    _this.boundHandleTechTap_ = function (e) {\n      return _this.handleTechTap_(e);\n    }; // default isFullscreen_ to false\n\n\n    _this.isFullscreen_ = false; // create logger\n\n    _this.log = createLogger(_this.id_); // Hold our own reference to fullscreen api so it can be mocked in tests\n\n    _this.fsApi_ = FullscreenApi; // Tracks when a tech changes the poster\n\n    _this.isPosterFromTech_ = false; // Holds callback info that gets queued when playback rate is zero\n    // and a seek is happening\n\n    _this.queuedCallbacks_ = []; // Turn off API access because we're loading a new tech that might load asynchronously\n\n    _this.isReady_ = false; // Init state hasStarted_\n\n    _this.hasStarted_ = false; // Init state userActive_\n\n    _this.userActive_ = false; // Init debugEnabled_\n\n    _this.debugEnabled_ = false; // if the global option object was accidentally blown away by\n    // someone, bail early with an informative error\n\n    if (!_this.options_ || !_this.options_.techOrder || !_this.options_.techOrder.length) {\n      throw new Error('No techOrder specified. Did you overwrite ' + 'videojs.options instead of just changing the ' + 'properties you want to override?');\n    } // Store the original tag used to set options\n\n\n    _this.tag = tag; // Store the tag attributes used to restore html5 element\n\n    _this.tagAttributes = tag && getAttributes(tag); // Update current language\n\n    _this.language(_this.options_.language); // Update Supported Languages\n\n\n    if (options.languages) {\n      // Normalise player option languages to lowercase\n      var languagesToLower = {};\n      Object.getOwnPropertyNames(options.languages).forEach(function (name) {\n        languagesToLower[name.toLowerCase()] = options.languages[name];\n      });\n      _this.languages_ = languagesToLower;\n    } else {\n      _this.languages_ = Player.prototype.options_.languages;\n    }\n\n    _this.resetCache_(); // Set poster\n\n\n    _this.poster_ = options.poster || ''; // Set controls\n\n    _this.controls_ = !!options.controls; // Original tag settings stored in options\n    // now remove immediately so native controls don't flash.\n    // May be turned back on by HTML5 tech if nativeControlsForTouch is true\n\n    tag.controls = false;\n    tag.removeAttribute('controls');\n    _this.changingSrc_ = false;\n    _this.playCallbacks_ = [];\n    _this.playTerminatedQueue_ = []; // the attribute overrides the option\n\n    if (tag.hasAttribute('autoplay')) {\n      _this.autoplay(true);\n    } else {\n      // otherwise use the setter to validate and\n      // set the correct value.\n      _this.autoplay(_this.options_.autoplay);\n    } // check plugins\n\n\n    if (options.plugins) {\n      Object.keys(options.plugins).forEach(function (name) {\n        if (typeof _this[name] !== 'function') {\n          throw new Error(\"plugin \\\"\" + name + \"\\\" does not exist\");\n        }\n      });\n    }\n    /*\n     * Store the internal state of scrubbing\n     *\n     * @private\n     * @return {Boolean} True if the user is scrubbing\n     */\n\n\n    _this.scrubbing_ = false;\n    _this.el_ = _this.createEl(); // Make this an evented object and use `el_` as its event bus.\n\n    evented(_assertThisInitialized(_this), {\n      eventBusKey: 'el_'\n    }); // listen to document and player fullscreenchange handlers so we receive those events\n    // before a user can receive them so we can update isFullscreen appropriately.\n    // make sure that we listen to fullscreenchange events before everything else to make sure that\n    // our isFullscreen method is updated properly for internal components as well as external.\n\n    if (_this.fsApi_.requestFullscreen) {\n      on(document, _this.fsApi_.fullscreenchange, _this.boundDocumentFullscreenChange_);\n\n      _this.on(_this.fsApi_.fullscreenchange, _this.boundDocumentFullscreenChange_);\n    }\n\n    if (_this.fluid_) {\n      _this.on(['playerreset', 'resize'], _this.boundUpdateStyleEl_);\n    } // We also want to pass the original player options to each component and plugin\n    // as well so they don't need to reach back into the player for options later.\n    // We also need to do another copy of this.options_ so we don't end up with\n    // an infinite loop.\n\n\n    var playerOptionsCopy = mergeOptions$3(_this.options_); // Load plugins\n\n    if (options.plugins) {\n      Object.keys(options.plugins).forEach(function (name) {\n        _this[name](options.plugins[name]);\n      });\n    } // Enable debug mode to fire debugon event for all plugins.\n\n\n    if (options.debug) {\n      _this.debug(true);\n    }\n\n    _this.options_.playerOptions = playerOptionsCopy;\n    _this.middleware_ = [];\n\n    _this.playbackRates(options.playbackRates);\n\n    _this.initChildren(); // Set isAudio based on whether or not an audio tag was used\n\n\n    _this.isAudio(tag.nodeName.toLowerCase() === 'audio'); // Update controls className. Can't do this when the controls are initially\n    // set because the element doesn't exist yet.\n\n\n    if (_this.controls()) {\n      _this.addClass('vjs-controls-enabled');\n    } else {\n      _this.addClass('vjs-controls-disabled');\n    } // Set ARIA label and region role depending on player type\n\n\n    _this.el_.setAttribute('role', 'region');\n\n    if (_this.isAudio()) {\n      _this.el_.setAttribute('aria-label', _this.localize('Audio Player'));\n    } else {\n      _this.el_.setAttribute('aria-label', _this.localize('Video Player'));\n    }\n\n    if (_this.isAudio()) {\n      _this.addClass('vjs-audio');\n    }\n\n    if (_this.flexNotSupported_()) {\n      _this.addClass('vjs-no-flex');\n    } // TODO: Make this smarter. Toggle user state between touching/mousing\n    // using events, since devices can have both touch and mouse events.\n    // TODO: Make this check be performed again when the window switches between monitors\n    // (See https://github.com/videojs/video.js/issues/5683)\n\n\n    if (TOUCH_ENABLED) {\n      _this.addClass('vjs-touch-enabled');\n    } // iOS Safari has broken hover handling\n\n\n    if (!IS_IOS) {\n      _this.addClass('vjs-workinghover');\n    } // Make player easily findable by ID\n\n\n    Player.players[_this.id_] = _assertThisInitialized(_this); // Add a major version class to aid css in plugins\n\n    var majorVersion = version$5.split('.')[0];\n\n    _this.addClass(\"vjs-v\" + majorVersion); // When the player is first initialized, trigger activity so components\n    // like the control bar show themselves if needed\n\n\n    _this.userActive(true);\n\n    _this.reportUserActivity();\n\n    _this.one('play', function (e) {\n      return _this.listenForUserActivity_(e);\n    });\n\n    _this.on('stageclick', function (e) {\n      return _this.handleStageClick_(e);\n    });\n\n    _this.on('keydown', function (e) {\n      return _this.handleKeyDown(e);\n    });\n\n    _this.on('languagechange', function (e) {\n      return _this.handleLanguagechange(e);\n    });\n\n    _this.breakpoints(_this.options_.breakpoints);\n\n    _this.responsive(_this.options_.responsive);\n\n    return _this;\n  }\n  /**\n   * Destroys the video player and does any necessary cleanup.\n   *\n   * This is especially helpful if you are dynamically adding and removing videos\n   * to/from the DOM.\n   *\n   * @fires Player#dispose\n   */\n\n\n  var _proto = Player.prototype;\n\n  _proto.dispose = function dispose() {\n    var _this2 = this;\n\n    /**\n     * Called when the player is being disposed of.\n     *\n     * @event Player#dispose\n     * @type {EventTarget~Event}\n     */\n    this.trigger('dispose'); // prevent dispose from being called twice\n\n    this.off('dispose'); // Make sure all player-specific document listeners are unbound. This is\n\n    off(document, this.fsApi_.fullscreenchange, this.boundDocumentFullscreenChange_);\n    off(document, 'keydown', this.boundFullWindowOnEscKey_);\n\n    if (this.styleEl_ && this.styleEl_.parentNode) {\n      this.styleEl_.parentNode.removeChild(this.styleEl_);\n      this.styleEl_ = null;\n    } // Kill reference to this player\n\n\n    Player.players[this.id_] = null;\n\n    if (this.tag && this.tag.player) {\n      this.tag.player = null;\n    }\n\n    if (this.el_ && this.el_.player) {\n      this.el_.player = null;\n    }\n\n    if (this.tech_) {\n      this.tech_.dispose();\n      this.isPosterFromTech_ = false;\n      this.poster_ = '';\n    }\n\n    if (this.playerElIngest_) {\n      this.playerElIngest_ = null;\n    }\n\n    if (this.tag) {\n      this.tag = null;\n    }\n\n    clearCacheForPlayer(this); // remove all event handlers for track lists\n    // all tracks and track listeners are removed on\n    // tech dispose\n\n    ALL.names.forEach(function (name) {\n      var props = ALL[name];\n\n      var list = _this2[props.getterName](); // if it is not a native list\n      // we have to manually remove event listeners\n\n\n      if (list && list.off) {\n        list.off();\n      }\n    }); // the actual .el_ is removed here\n\n    _Component.prototype.dispose.call(this);\n  }\n  /**\n   * Create the `Player`'s DOM element.\n   *\n   * @return {Element}\n   *         The DOM element that gets created.\n   */\n  ;\n\n  _proto.createEl = function createEl() {\n    var tag = this.tag;\n    var el;\n    var playerElIngest = this.playerElIngest_ = tag.parentNode && tag.parentNode.hasAttribute && tag.parentNode.hasAttribute('data-vjs-player');\n    var divEmbed = this.tag.tagName.toLowerCase() === 'video-js';\n\n    if (playerElIngest) {\n      el = this.el_ = tag.parentNode;\n    } else if (!divEmbed) {\n      el = this.el_ = _Component.prototype.createEl.call(this, 'div');\n    } // Copy over all the attributes from the tag, including ID and class\n    // ID will now reference player box, not the video tag\n\n\n    var attrs = getAttributes(tag);\n\n    if (divEmbed) {\n      el = this.el_ = tag;\n      tag = this.tag = document.createElement('video');\n\n      while (el.children.length) {\n        tag.appendChild(el.firstChild);\n      }\n\n      if (!hasClass(el, 'video-js')) {\n        addClass(el, 'video-js');\n      }\n\n      el.appendChild(tag);\n      playerElIngest = this.playerElIngest_ = el; // move properties over from our custom `video-js` element\n      // to our new `video` element. This will move things like\n      // `src` or `controls` that were set via js before the player\n      // was initialized.\n\n      Object.keys(el).forEach(function (k) {\n        try {\n          tag[k] = el[k];\n        } catch (e) {// we got a a property like outerHTML which we can't actually copy, ignore it\n        }\n      });\n    } // set tabindex to -1 to remove the video element from the focus order\n\n\n    tag.setAttribute('tabindex', '-1');\n    attrs.tabindex = '-1'; // Workaround for #4583 (JAWS+IE doesn't announce BPB or play button), and\n    // for the same issue with Chrome (on Windows) with JAWS.\n    // See https://github.com/FreedomScientific/VFO-standards-support/issues/78\n    // Note that we can't detect if JAWS is being used, but this ARIA attribute\n    //  doesn't change behavior of IE11 or Chrome if JAWS is not being used\n\n    if (IE_VERSION || IS_CHROME && IS_WINDOWS) {\n      tag.setAttribute('role', 'application');\n      attrs.role = 'application';\n    } // Remove width/height attrs from tag so CSS can make it 100% width/height\n\n\n    tag.removeAttribute('width');\n    tag.removeAttribute('height');\n\n    if ('width' in attrs) {\n      delete attrs.width;\n    }\n\n    if ('height' in attrs) {\n      delete attrs.height;\n    }\n\n    Object.getOwnPropertyNames(attrs).forEach(function (attr) {\n      // don't copy over the class attribute to the player element when we're in a div embed\n      // the class is already set up properly in the divEmbed case\n      // and we want to make sure that the `video-js` class doesn't get lost\n      if (!(divEmbed && attr === 'class')) {\n        el.setAttribute(attr, attrs[attr]);\n      }\n\n      if (divEmbed) {\n        tag.setAttribute(attr, attrs[attr]);\n      }\n    }); // Update tag id/class for use as HTML5 playback tech\n    // Might think we should do this after embedding in container so .vjs-tech class\n    // doesn't flash 100% width/height, but class only applies with .video-js parent\n\n    tag.playerId = tag.id;\n    tag.id += '_html5_api';\n    tag.className = 'vjs-tech'; // Make player findable on elements\n\n    tag.player = el.player = this; // Default state of video is paused\n\n    this.addClass('vjs-paused'); // Add a style element in the player that we'll use to set the width/height\n    // of the player in a way that's still overrideable by CSS, just like the\n    // video element\n\n    if (window.VIDEOJS_NO_DYNAMIC_STYLE !== true) {\n      this.styleEl_ = createStyleElement('vjs-styles-dimensions');\n      var defaultsStyleEl = $('.vjs-styles-defaults');\n      var head = $('head');\n      head.insertBefore(this.styleEl_, defaultsStyleEl ? defaultsStyleEl.nextSibling : head.firstChild);\n    }\n\n    this.fill_ = false;\n    this.fluid_ = false; // Pass in the width/height/aspectRatio options which will update the style el\n\n    this.width(this.options_.width);\n    this.height(this.options_.height);\n    this.fill(this.options_.fill);\n    this.fluid(this.options_.fluid);\n    this.aspectRatio(this.options_.aspectRatio); // support both crossOrigin and crossorigin to reduce confusion and issues around the name\n\n    this.crossOrigin(this.options_.crossOrigin || this.options_.crossorigin); // Hide any links within the video/audio tag,\n    // because IE doesn't hide them completely from screen readers.\n\n    var links = tag.getElementsByTagName('a');\n\n    for (var i = 0; i < links.length; i++) {\n      var linkEl = links.item(i);\n      addClass(linkEl, 'vjs-hidden');\n      linkEl.setAttribute('hidden', 'hidden');\n    } // insertElFirst seems to cause the networkState to flicker from 3 to 2, so\n    // keep track of the original for later so we can know if the source originally failed\n\n\n    tag.initNetworkState_ = tag.networkState; // Wrap video tag in div (el/box) container\n\n    if (tag.parentNode && !playerElIngest) {\n      tag.parentNode.insertBefore(el, tag);\n    } // insert the tag as the first child of the player element\n    // then manually add it to the children array so that this.addChild\n    // will work properly for other components\n    //\n    // Breaks iPhone, fixed in HTML5 setup.\n\n\n    prependTo(tag, el);\n    this.children_.unshift(tag); // Set lang attr on player to ensure CSS :lang() in consistent with player\n    // if it's been set to something different to the doc\n\n    this.el_.setAttribute('lang', this.language_);\n    this.el_ = el;\n    return el;\n  }\n  /**\n   * Get or set the `Player`'s crossOrigin option. For the HTML5 player, this\n   * sets the `crossOrigin` property on the `<video>` tag to control the CORS\n   * behavior.\n   *\n   * @see [Video Element Attributes]{@link https://developer.mozilla.org/en-US/docs/Web/HTML/Element/video#attr-crossorigin}\n   *\n   * @param {string} [value]\n   *        The value to set the `Player`'s crossOrigin to. If an argument is\n   *        given, must be one of `anonymous` or `use-credentials`.\n   *\n   * @return {string|undefined}\n   *         - The current crossOrigin value of the `Player` when getting.\n   *         - undefined when setting\n   */\n  ;\n\n  _proto.crossOrigin = function crossOrigin(value) {\n    if (!value) {\n      return this.techGet_('crossOrigin');\n    }\n\n    if (value !== 'anonymous' && value !== 'use-credentials') {\n      log$1.warn(\"crossOrigin must be \\\"anonymous\\\" or \\\"use-credentials\\\", given \\\"\" + value + \"\\\"\");\n      return;\n    }\n\n    this.techCall_('setCrossOrigin', value);\n    return;\n  }\n  /**\n   * A getter/setter for the `Player`'s width. Returns the player's configured value.\n   * To get the current width use `currentWidth()`.\n   *\n   * @param {number} [value]\n   *        The value to set the `Player`'s width to.\n   *\n   * @return {number}\n   *         The current width of the `Player` when getting.\n   */\n  ;\n\n  _proto.width = function width(value) {\n    return this.dimension('width', value);\n  }\n  /**\n   * A getter/setter for the `Player`'s height. Returns the player's configured value.\n   * To get the current height use `currentheight()`.\n   *\n   * @param {number} [value]\n   *        The value to set the `Player`'s heigth to.\n   *\n   * @return {number}\n   *         The current height of the `Player` when getting.\n   */\n  ;\n\n  _proto.height = function height(value) {\n    return this.dimension('height', value);\n  }\n  /**\n   * A getter/setter for the `Player`'s width & height.\n   *\n   * @param {string} dimension\n   *        This string can be:\n   *        - 'width'\n   *        - 'height'\n   *\n   * @param {number} [value]\n   *        Value for dimension specified in the first argument.\n   *\n   * @return {number}\n   *         The dimension arguments value when getting (width/height).\n   */\n  ;\n\n  _proto.dimension = function dimension(_dimension, value) {\n    var privDimension = _dimension + '_';\n\n    if (value === undefined) {\n      return this[privDimension] || 0;\n    }\n\n    if (value === '' || value === 'auto') {\n      // If an empty string is given, reset the dimension to be automatic\n      this[privDimension] = undefined;\n      this.updateStyleEl_();\n      return;\n    }\n\n    var parsedVal = parseFloat(value);\n\n    if (isNaN(parsedVal)) {\n      log$1.error(\"Improper value \\\"\" + value + \"\\\" supplied for for \" + _dimension);\n      return;\n    }\n\n    this[privDimension] = parsedVal;\n    this.updateStyleEl_();\n  }\n  /**\n   * A getter/setter/toggler for the vjs-fluid `className` on the `Player`.\n   *\n   * Turning this on will turn off fill mode.\n   *\n   * @param {boolean} [bool]\n   *        - A value of true adds the class.\n   *        - A value of false removes the class.\n   *        - No value will be a getter.\n   *\n   * @return {boolean|undefined}\n   *         - The value of fluid when getting.\n   *         - `undefined` when setting.\n   */\n  ;\n\n  _proto.fluid = function fluid(bool) {\n    var _this3 = this;\n\n    if (bool === undefined) {\n      return !!this.fluid_;\n    }\n\n    this.fluid_ = !!bool;\n\n    if (isEvented(this)) {\n      this.off(['playerreset', 'resize'], this.boundUpdateStyleEl_);\n    }\n\n    if (bool) {\n      this.addClass('vjs-fluid');\n      this.fill(false);\n      addEventedCallback(this, function () {\n        _this3.on(['playerreset', 'resize'], _this3.boundUpdateStyleEl_);\n      });\n    } else {\n      this.removeClass('vjs-fluid');\n    }\n\n    this.updateStyleEl_();\n  }\n  /**\n   * A getter/setter/toggler for the vjs-fill `className` on the `Player`.\n   *\n   * Turning this on will turn off fluid mode.\n   *\n   * @param {boolean} [bool]\n   *        - A value of true adds the class.\n   *        - A value of false removes the class.\n   *        - No value will be a getter.\n   *\n   * @return {boolean|undefined}\n   *         - The value of fluid when getting.\n   *         - `undefined` when setting.\n   */\n  ;\n\n  _proto.fill = function fill(bool) {\n    if (bool === undefined) {\n      return !!this.fill_;\n    }\n\n    this.fill_ = !!bool;\n\n    if (bool) {\n      this.addClass('vjs-fill');\n      this.fluid(false);\n    } else {\n      this.removeClass('vjs-fill');\n    }\n  }\n  /**\n   * Get/Set the aspect ratio\n   *\n   * @param {string} [ratio]\n   *        Aspect ratio for player\n   *\n   * @return {string|undefined}\n   *         returns the current aspect ratio when getting\n   */\n\n  /**\n   * A getter/setter for the `Player`'s aspect ratio.\n   *\n   * @param {string} [ratio]\n   *        The value to set the `Player`'s aspect ratio to.\n   *\n   * @return {string|undefined}\n   *         - The current aspect ratio of the `Player` when getting.\n   *         - undefined when setting\n   */\n  ;\n\n  _proto.aspectRatio = function aspectRatio(ratio) {\n    if (ratio === undefined) {\n      return this.aspectRatio_;\n    } // Check for width:height format\n\n\n    if (!/^\\d+\\:\\d+$/.test(ratio)) {\n      throw new Error('Improper value supplied for aspect ratio. The format should be width:height, for example 16:9.');\n    }\n\n    this.aspectRatio_ = ratio; // We're assuming if you set an aspect ratio you want fluid mode,\n    // because in fixed mode you could calculate width and height yourself.\n\n    this.fluid(true);\n    this.updateStyleEl_();\n  }\n  /**\n   * Update styles of the `Player` element (height, width and aspect ratio).\n   *\n   * @private\n   * @listens Tech#loadedmetadata\n   */\n  ;\n\n  _proto.updateStyleEl_ = function updateStyleEl_() {\n    if (window.VIDEOJS_NO_DYNAMIC_STYLE === true) {\n      var _width = typeof this.width_ === 'number' ? this.width_ : this.options_.width;\n\n      var _height = typeof this.height_ === 'number' ? this.height_ : this.options_.height;\n\n      var techEl = this.tech_ && this.tech_.el();\n\n      if (techEl) {\n        if (_width >= 0) {\n          techEl.width = _width;\n        }\n\n        if (_height >= 0) {\n          techEl.height = _height;\n        }\n      }\n\n      return;\n    }\n\n    var width;\n    var height;\n    var aspectRatio;\n    var idClass; // The aspect ratio is either used directly or to calculate width and height.\n\n    if (this.aspectRatio_ !== undefined && this.aspectRatio_ !== 'auto') {\n      // Use any aspectRatio that's been specifically set\n      aspectRatio = this.aspectRatio_;\n    } else if (this.videoWidth() > 0) {\n      // Otherwise try to get the aspect ratio from the video metadata\n      aspectRatio = this.videoWidth() + ':' + this.videoHeight();\n    } else {\n      // Or use a default. The video element's is 2:1, but 16:9 is more common.\n      aspectRatio = '16:9';\n    } // Get the ratio as a decimal we can use to calculate dimensions\n\n\n    var ratioParts = aspectRatio.split(':');\n    var ratioMultiplier = ratioParts[1] / ratioParts[0];\n\n    if (this.width_ !== undefined) {\n      // Use any width that's been specifically set\n      width = this.width_;\n    } else if (this.height_ !== undefined) {\n      // Or calulate the width from the aspect ratio if a height has been set\n      width = this.height_ / ratioMultiplier;\n    } else {\n      // Or use the video's metadata, or use the video el's default of 300\n      width = this.videoWidth() || 300;\n    }\n\n    if (this.height_ !== undefined) {\n      // Use any height that's been specifically set\n      height = this.height_;\n    } else {\n      // Otherwise calculate the height from the ratio and the width\n      height = width * ratioMultiplier;\n    } // Ensure the CSS class is valid by starting with an alpha character\n\n\n    if (/^[^a-zA-Z]/.test(this.id())) {\n      idClass = 'dimensions-' + this.id();\n    } else {\n      idClass = this.id() + '-dimensions';\n    } // Ensure the right class is still on the player for the style element\n\n\n    this.addClass(idClass);\n    setTextContent(this.styleEl_, \"\\n      .\" + idClass + \" {\\n        width: \" + width + \"px;\\n        height: \" + height + \"px;\\n      }\\n\\n      .\" + idClass + \".vjs-fluid {\\n        padding-top: \" + ratioMultiplier * 100 + \"%;\\n      }\\n    \");\n  }\n  /**\n   * Load/Create an instance of playback {@link Tech} including element\n   * and API methods. Then append the `Tech` element in `Player` as a child.\n   *\n   * @param {string} techName\n   *        name of the playback technology\n   *\n   * @param {string} source\n   *        video source\n   *\n   * @private\n   */\n  ;\n\n  _proto.loadTech_ = function loadTech_(techName, source) {\n    var _this4 = this;\n\n    // Pause and remove current playback technology\n    if (this.tech_) {\n      this.unloadTech_();\n    }\n\n    var titleTechName = toTitleCase$1(techName);\n    var camelTechName = techName.charAt(0).toLowerCase() + techName.slice(1); // get rid of the HTML5 video tag as soon as we are using another tech\n\n    if (titleTechName !== 'Html5' && this.tag) {\n      Tech.getTech('Html5').disposeMediaElement(this.tag);\n      this.tag.player = null;\n      this.tag = null;\n    }\n\n    this.techName_ = titleTechName; // Turn off API access because we're loading a new tech that might load asynchronously\n\n    this.isReady_ = false;\n    var autoplay = this.autoplay(); // if autoplay is a string (or `true` with normalizeAutoplay: true) we pass false to the tech\n    // because the player is going to handle autoplay on `loadstart`\n\n    if (typeof this.autoplay() === 'string' || this.autoplay() === true && this.options_.normalizeAutoplay) {\n      autoplay = false;\n    } // Grab tech-specific options from player options and add source and parent element to use.\n\n\n    var techOptions = {\n      source: source,\n      autoplay: autoplay,\n      'nativeControlsForTouch': this.options_.nativeControlsForTouch,\n      'playerId': this.id(),\n      'techId': this.id() + \"_\" + camelTechName + \"_api\",\n      'playsinline': this.options_.playsinline,\n      'preload': this.options_.preload,\n      'loop': this.options_.loop,\n      'disablePictureInPicture': this.options_.disablePictureInPicture,\n      'muted': this.options_.muted,\n      'poster': this.poster(),\n      'language': this.language(),\n      'playerElIngest': this.playerElIngest_ || false,\n      'vtt.js': this.options_['vtt.js'],\n      'canOverridePoster': !!this.options_.techCanOverridePoster,\n      'enableSourceset': this.options_.enableSourceset,\n      'Promise': this.options_.Promise\n    };\n    ALL.names.forEach(function (name) {\n      var props = ALL[name];\n      techOptions[props.getterName] = _this4[props.privateName];\n    });\n    assign(techOptions, this.options_[titleTechName]);\n    assign(techOptions, this.options_[camelTechName]);\n    assign(techOptions, this.options_[techName.toLowerCase()]);\n\n    if (this.tag) {\n      techOptions.tag = this.tag;\n    }\n\n    if (source && source.src === this.cache_.src && this.cache_.currentTime > 0) {\n      techOptions.startTime = this.cache_.currentTime;\n    } // Initialize tech instance\n\n\n    var TechClass = Tech.getTech(techName);\n\n    if (!TechClass) {\n      throw new Error(\"No Tech named '\" + titleTechName + \"' exists! '\" + titleTechName + \"' should be registered using videojs.registerTech()'\");\n    }\n\n    this.tech_ = new TechClass(techOptions); // player.triggerReady is always async, so don't need this to be async\n\n    this.tech_.ready(bind(this, this.handleTechReady_), true);\n    textTrackConverter.jsonToTextTracks(this.textTracksJson_ || [], this.tech_); // Listen to all HTML5-defined events and trigger them on the player\n\n    TECH_EVENTS_RETRIGGER.forEach(function (event) {\n      _this4.on(_this4.tech_, event, function (e) {\n        return _this4[\"handleTech\" + toTitleCase$1(event) + \"_\"](e);\n      });\n    });\n    Object.keys(TECH_EVENTS_QUEUE).forEach(function (event) {\n      _this4.on(_this4.tech_, event, function (eventObj) {\n        if (_this4.tech_.playbackRate() === 0 && _this4.tech_.seeking()) {\n          _this4.queuedCallbacks_.push({\n            callback: _this4[\"handleTech\" + TECH_EVENTS_QUEUE[event] + \"_\"].bind(_this4),\n            event: eventObj\n          });\n\n          return;\n        }\n\n        _this4[\"handleTech\" + TECH_EVENTS_QUEUE[event] + \"_\"](eventObj);\n      });\n    });\n    this.on(this.tech_, 'loadstart', function (e) {\n      return _this4.handleTechLoadStart_(e);\n    });\n    this.on(this.tech_, 'sourceset', function (e) {\n      return _this4.handleTechSourceset_(e);\n    });\n    this.on(this.tech_, 'waiting', function (e) {\n      return _this4.handleTechWaiting_(e);\n    });\n    this.on(this.tech_, 'ended', function (e) {\n      return _this4.handleTechEnded_(e);\n    });\n    this.on(this.tech_, 'seeking', function (e) {\n      return _this4.handleTechSeeking_(e);\n    });\n    this.on(this.tech_, 'play', function (e) {\n      return _this4.handleTechPlay_(e);\n    });\n    this.on(this.tech_, 'firstplay', function (e) {\n      return _this4.handleTechFirstPlay_(e);\n    });\n    this.on(this.tech_, 'pause', function (e) {\n      return _this4.handleTechPause_(e);\n    });\n    this.on(this.tech_, 'durationchange', function (e) {\n      return _this4.handleTechDurationChange_(e);\n    });\n    this.on(this.tech_, 'fullscreenchange', function (e, data) {\n      return _this4.handleTechFullscreenChange_(e, data);\n    });\n    this.on(this.tech_, 'fullscreenerror', function (e, err) {\n      return _this4.handleTechFullscreenError_(e, err);\n    });\n    this.on(this.tech_, 'enterpictureinpicture', function (e) {\n      return _this4.handleTechEnterPictureInPicture_(e);\n    });\n    this.on(this.tech_, 'leavepictureinpicture', function (e) {\n      return _this4.handleTechLeavePictureInPicture_(e);\n    });\n    this.on(this.tech_, 'error', function (e) {\n      return _this4.handleTechError_(e);\n    });\n    this.on(this.tech_, 'posterchange', function (e) {\n      return _this4.handleTechPosterChange_(e);\n    });\n    this.on(this.tech_, 'textdata', function (e) {\n      return _this4.handleTechTextData_(e);\n    });\n    this.on(this.tech_, 'ratechange', function (e) {\n      return _this4.handleTechRateChange_(e);\n    });\n    this.on(this.tech_, 'loadedmetadata', this.boundUpdateStyleEl_);\n    this.usingNativeControls(this.techGet_('controls'));\n\n    if (this.controls() && !this.usingNativeControls()) {\n      this.addTechControlsListeners_();\n    } // Add the tech element in the DOM if it was not already there\n    // Make sure to not insert the original video element if using Html5\n\n\n    if (this.tech_.el().parentNode !== this.el() && (titleTechName !== 'Html5' || !this.tag)) {\n      prependTo(this.tech_.el(), this.el());\n    } // Get rid of the original video tag reference after the first tech is loaded\n\n\n    if (this.tag) {\n      this.tag.player = null;\n      this.tag = null;\n    }\n  }\n  /**\n   * Unload and dispose of the current playback {@link Tech}.\n   *\n   * @private\n   */\n  ;\n\n  _proto.unloadTech_ = function unloadTech_() {\n    var _this5 = this;\n\n    // Save the current text tracks so that we can reuse the same text tracks with the next tech\n    ALL.names.forEach(function (name) {\n      var props = ALL[name];\n      _this5[props.privateName] = _this5[props.getterName]();\n    });\n    this.textTracksJson_ = textTrackConverter.textTracksToJson(this.tech_);\n    this.isReady_ = false;\n    this.tech_.dispose();\n    this.tech_ = false;\n\n    if (this.isPosterFromTech_) {\n      this.poster_ = '';\n      this.trigger('posterchange');\n    }\n\n    this.isPosterFromTech_ = false;\n  }\n  /**\n   * Return a reference to the current {@link Tech}.\n   * It will print a warning by default about the danger of using the tech directly\n   * but any argument that is passed in will silence the warning.\n   *\n   * @param {*} [safety]\n   *        Anything passed in to silence the warning\n   *\n   * @return {Tech}\n   *         The Tech\n   */\n  ;\n\n  _proto.tech = function tech(safety) {\n    if (safety === undefined) {\n      log$1.warn('Using the tech directly can be dangerous. I hope you know what you\\'re doing.\\n' + 'See https://github.com/videojs/video.js/issues/2617 for more info.\\n');\n    }\n\n    return this.tech_;\n  }\n  /**\n   * Set up click and touch listeners for the playback element\n   *\n   * - On desktops: a click on the video itself will toggle playback\n   * - On mobile devices: a click on the video toggles controls\n   *   which is done by toggling the user state between active and\n   *   inactive\n   * - A tap can signal that a user has become active or has become inactive\n   *   e.g. a quick tap on an iPhone movie should reveal the controls. Another\n   *   quick tap should hide them again (signaling the user is in an inactive\n   *   viewing state)\n   * - In addition to this, we still want the user to be considered inactive after\n   *   a few seconds of inactivity.\n   *\n   * > Note: the only part of iOS interaction we can't mimic with this setup\n   * is a touch and hold on the video element counting as activity in order to\n   * keep the controls showing, but that shouldn't be an issue. A touch and hold\n   * on any controls will still keep the user active\n   *\n   * @private\n   */\n  ;\n\n  _proto.addTechControlsListeners_ = function addTechControlsListeners_() {\n    // Make sure to remove all the previous listeners in case we are called multiple times.\n    this.removeTechControlsListeners_();\n    this.on(this.tech_, 'click', this.boundHandleTechClick_);\n    this.on(this.tech_, 'dblclick', this.boundHandleTechDoubleClick_); // If the controls were hidden we don't want that to change without a tap event\n    // so we'll check if the controls were already showing before reporting user\n    // activity\n\n    this.on(this.tech_, 'touchstart', this.boundHandleTechTouchStart_);\n    this.on(this.tech_, 'touchmove', this.boundHandleTechTouchMove_);\n    this.on(this.tech_, 'touchend', this.boundHandleTechTouchEnd_); // The tap listener needs to come after the touchend listener because the tap\n    // listener cancels out any reportedUserActivity when setting userActive(false)\n\n    this.on(this.tech_, 'tap', this.boundHandleTechTap_);\n  }\n  /**\n   * Remove the listeners used for click and tap controls. This is needed for\n   * toggling to controls disabled, where a tap/touch should do nothing.\n   *\n   * @private\n   */\n  ;\n\n  _proto.removeTechControlsListeners_ = function removeTechControlsListeners_() {\n    // We don't want to just use `this.off()` because there might be other needed\n    // listeners added by techs that extend this.\n    this.off(this.tech_, 'tap', this.boundHandleTechTap_);\n    this.off(this.tech_, 'touchstart', this.boundHandleTechTouchStart_);\n    this.off(this.tech_, 'touchmove', this.boundHandleTechTouchMove_);\n    this.off(this.tech_, 'touchend', this.boundHandleTechTouchEnd_);\n    this.off(this.tech_, 'click', this.boundHandleTechClick_);\n    this.off(this.tech_, 'dblclick', this.boundHandleTechDoubleClick_);\n  }\n  /**\n   * Player waits for the tech to be ready\n   *\n   * @private\n   */\n  ;\n\n  _proto.handleTechReady_ = function handleTechReady_() {\n    this.triggerReady(); // Keep the same volume as before\n\n    if (this.cache_.volume) {\n      this.techCall_('setVolume', this.cache_.volume);\n    } // Look if the tech found a higher resolution poster while loading\n\n\n    this.handleTechPosterChange_(); // Update the duration if available\n\n    this.handleTechDurationChange_();\n  }\n  /**\n   * Retrigger the `loadstart` event that was triggered by the {@link Tech}. This\n   * function will also trigger {@link Player#firstplay} if it is the first loadstart\n   * for a video.\n   *\n   * @fires Player#loadstart\n   * @fires Player#firstplay\n   * @listens Tech#loadstart\n   * @private\n   */\n  ;\n\n  _proto.handleTechLoadStart_ = function handleTechLoadStart_() {\n    // TODO: Update to use `emptied` event instead. See #1277.\n    this.removeClass('vjs-ended');\n    this.removeClass('vjs-seeking'); // reset the error state\n\n    this.error(null); // Update the duration\n\n    this.handleTechDurationChange_(); // If it's already playing we want to trigger a firstplay event now.\n    // The firstplay event relies on both the play and loadstart events\n    // which can happen in any order for a new source\n\n    if (!this.paused()) {\n      /**\n       * Fired when the user agent begins looking for media data\n       *\n       * @event Player#loadstart\n       * @type {EventTarget~Event}\n       */\n      this.trigger('loadstart');\n      this.trigger('firstplay');\n    } else {\n      // reset the hasStarted state\n      this.hasStarted(false);\n      this.trigger('loadstart');\n    } // autoplay happens after loadstart for the browser,\n    // so we mimic that behavior\n\n\n    this.manualAutoplay_(this.autoplay() === true && this.options_.normalizeAutoplay ? 'play' : this.autoplay());\n  }\n  /**\n   * Handle autoplay string values, rather than the typical boolean\n   * values that should be handled by the tech. Note that this is not\n   * part of any specification. Valid values and what they do can be\n   * found on the autoplay getter at Player#autoplay()\n   */\n  ;\n\n  _proto.manualAutoplay_ = function manualAutoplay_(type) {\n    var _this6 = this;\n\n    if (!this.tech_ || typeof type !== 'string') {\n      return;\n    } // Save original muted() value, set muted to true, and attempt to play().\n    // On promise rejection, restore muted from saved value\n\n\n    var resolveMuted = function resolveMuted() {\n      var previouslyMuted = _this6.muted();\n\n      _this6.muted(true);\n\n      var restoreMuted = function restoreMuted() {\n        _this6.muted(previouslyMuted);\n      }; // restore muted on play terminatation\n\n\n      _this6.playTerminatedQueue_.push(restoreMuted);\n\n      var mutedPromise = _this6.play();\n\n      if (!isPromise(mutedPromise)) {\n        return;\n      }\n\n      return mutedPromise[\"catch\"](function (err) {\n        restoreMuted();\n        throw new Error(\"Rejection at manualAutoplay. Restoring muted value. \" + (err ? err : ''));\n      });\n    };\n\n    var promise; // if muted defaults to true\n    // the only thing we can do is call play\n\n    if (type === 'any' && !this.muted()) {\n      promise = this.play();\n\n      if (isPromise(promise)) {\n        promise = promise[\"catch\"](resolveMuted);\n      }\n    } else if (type === 'muted' && !this.muted()) {\n      promise = resolveMuted();\n    } else {\n      promise = this.play();\n    }\n\n    if (!isPromise(promise)) {\n      return;\n    }\n\n    return promise.then(function () {\n      _this6.trigger({\n        type: 'autoplay-success',\n        autoplay: type\n      });\n    })[\"catch\"](function () {\n      _this6.trigger({\n        type: 'autoplay-failure',\n        autoplay: type\n      });\n    });\n  }\n  /**\n   * Update the internal source caches so that we return the correct source from\n   * `src()`, `currentSource()`, and `currentSources()`.\n   *\n   * > Note: `currentSources` will not be updated if the source that is passed in exists\n   *         in the current `currentSources` cache.\n   *\n   *\n   * @param {Tech~SourceObject} srcObj\n   *        A string or object source to update our caches to.\n   */\n  ;\n\n  _proto.updateSourceCaches_ = function updateSourceCaches_(srcObj) {\n    if (srcObj === void 0) {\n      srcObj = '';\n    }\n\n    var src = srcObj;\n    var type = '';\n\n    if (typeof src !== 'string') {\n      src = srcObj.src;\n      type = srcObj.type;\n    } // make sure all the caches are set to default values\n    // to prevent null checking\n\n\n    this.cache_.source = this.cache_.source || {};\n    this.cache_.sources = this.cache_.sources || []; // try to get the type of the src that was passed in\n\n    if (src && !type) {\n      type = findMimetype(this, src);\n    } // update `currentSource` cache always\n\n\n    this.cache_.source = mergeOptions$3({}, srcObj, {\n      src: src,\n      type: type\n    });\n    var matchingSources = this.cache_.sources.filter(function (s) {\n      return s.src && s.src === src;\n    });\n    var sourceElSources = [];\n    var sourceEls = this.$$('source');\n    var matchingSourceEls = [];\n\n    for (var i = 0; i < sourceEls.length; i++) {\n      var sourceObj = getAttributes(sourceEls[i]);\n      sourceElSources.push(sourceObj);\n\n      if (sourceObj.src && sourceObj.src === src) {\n        matchingSourceEls.push(sourceObj.src);\n      }\n    } // if we have matching source els but not matching sources\n    // the current source cache is not up to date\n\n\n    if (matchingSourceEls.length && !matchingSources.length) {\n      this.cache_.sources = sourceElSources; // if we don't have matching source or source els set the\n      // sources cache to the `currentSource` cache\n    } else if (!matchingSources.length) {\n      this.cache_.sources = [this.cache_.source];\n    } // update the tech `src` cache\n\n\n    this.cache_.src = src;\n  }\n  /**\n   * *EXPERIMENTAL* Fired when the source is set or changed on the {@link Tech}\n   * causing the media element to reload.\n   *\n   * It will fire for the initial source and each subsequent source.\n   * This event is a custom event from Video.js and is triggered by the {@link Tech}.\n   *\n   * The event object for this event contains a `src` property that will contain the source\n   * that was available when the event was triggered. This is generally only necessary if Video.js\n   * is switching techs while the source was being changed.\n   *\n   * It is also fired when `load` is called on the player (or media element)\n   * because the {@link https://html.spec.whatwg.org/multipage/media.html#dom-media-load|specification for `load`}\n   * says that the resource selection algorithm needs to be aborted and restarted.\n   * In this case, it is very likely that the `src` property will be set to the\n   * empty string `\"\"` to indicate we do not know what the source will be but\n   * that it is changing.\n   *\n   * *This event is currently still experimental and may change in minor releases.*\n   * __To use this, pass `enableSourceset` option to the player.__\n   *\n   * @event Player#sourceset\n   * @type {EventTarget~Event}\n   * @prop {string} src\n   *                The source url available when the `sourceset` was triggered.\n   *                It will be an empty string if we cannot know what the source is\n   *                but know that the source will change.\n   */\n\n  /**\n   * Retrigger the `sourceset` event that was triggered by the {@link Tech}.\n   *\n   * @fires Player#sourceset\n   * @listens Tech#sourceset\n   * @private\n   */\n  ;\n\n  _proto.handleTechSourceset_ = function handleTechSourceset_(event) {\n    var _this7 = this;\n\n    // only update the source cache when the source\n    // was not updated using the player api\n    if (!this.changingSrc_) {\n      var updateSourceCaches = function updateSourceCaches(src) {\n        return _this7.updateSourceCaches_(src);\n      };\n\n      var playerSrc = this.currentSource().src;\n      var eventSrc = event.src; // if we have a playerSrc that is not a blob, and a tech src that is a blob\n\n      if (playerSrc && !/^blob:/.test(playerSrc) && /^blob:/.test(eventSrc)) {\n        // if both the tech source and the player source were updated we assume\n        // something like @videojs/http-streaming did the sourceset and skip updating the source cache.\n        if (!this.lastSource_ || this.lastSource_.tech !== eventSrc && this.lastSource_.player !== playerSrc) {\n          updateSourceCaches = function updateSourceCaches() {};\n        }\n      } // update the source to the initial source right away\n      // in some cases this will be empty string\n\n\n      updateSourceCaches(eventSrc); // if the `sourceset` `src` was an empty string\n      // wait for a `loadstart` to update the cache to `currentSrc`.\n      // If a sourceset happens before a `loadstart`, we reset the state\n\n      if (!event.src) {\n        this.tech_.any(['sourceset', 'loadstart'], function (e) {\n          // if a sourceset happens before a `loadstart` there\n          // is nothing to do as this `handleTechSourceset_`\n          // will be called again and this will be handled there.\n          if (e.type === 'sourceset') {\n            return;\n          }\n\n          var techSrc = _this7.techGet('currentSrc');\n\n          _this7.lastSource_.tech = techSrc;\n\n          _this7.updateSourceCaches_(techSrc);\n        });\n      }\n    }\n\n    this.lastSource_ = {\n      player: this.currentSource().src,\n      tech: event.src\n    };\n    this.trigger({\n      src: event.src,\n      type: 'sourceset'\n    });\n  }\n  /**\n   * Add/remove the vjs-has-started class\n   *\n   * @fires Player#firstplay\n   *\n   * @param {boolean} request\n   *        - true: adds the class\n   *        - false: remove the class\n   *\n   * @return {boolean}\n   *         the boolean value of hasStarted_\n   */\n  ;\n\n  _proto.hasStarted = function hasStarted(request) {\n    if (request === undefined) {\n      // act as getter, if we have no request to change\n      return this.hasStarted_;\n    }\n\n    if (request === this.hasStarted_) {\n      return;\n    }\n\n    this.hasStarted_ = request;\n\n    if (this.hasStarted_) {\n      this.addClass('vjs-has-started');\n      this.trigger('firstplay');\n    } else {\n      this.removeClass('vjs-has-started');\n    }\n  }\n  /**\n   * Fired whenever the media begins or resumes playback\n   *\n   * @see [Spec]{@link https://html.spec.whatwg.org/multipage/embedded-content.html#dom-media-play}\n   * @fires Player#play\n   * @listens Tech#play\n   * @private\n   */\n  ;\n\n  _proto.handleTechPlay_ = function handleTechPlay_() {\n    this.removeClass('vjs-ended');\n    this.removeClass('vjs-paused');\n    this.addClass('vjs-playing'); // hide the poster when the user hits play\n\n    this.hasStarted(true);\n    /**\n     * Triggered whenever an {@link Tech#play} event happens. Indicates that\n     * playback has started or resumed.\n     *\n     * @event Player#play\n     * @type {EventTarget~Event}\n     */\n\n    this.trigger('play');\n  }\n  /**\n   * Retrigger the `ratechange` event that was triggered by the {@link Tech}.\n   *\n   * If there were any events queued while the playback rate was zero, fire\n   * those events now.\n   *\n   * @private\n   * @method Player#handleTechRateChange_\n   * @fires Player#ratechange\n   * @listens Tech#ratechange\n   */\n  ;\n\n  _proto.handleTechRateChange_ = function handleTechRateChange_() {\n    if (this.tech_.playbackRate() > 0 && this.cache_.lastPlaybackRate === 0) {\n      this.queuedCallbacks_.forEach(function (queued) {\n        return queued.callback(queued.event);\n      });\n      this.queuedCallbacks_ = [];\n    }\n\n    this.cache_.lastPlaybackRate = this.tech_.playbackRate();\n    /**\n     * Fires when the playing speed of the audio/video is changed\n     *\n     * @event Player#ratechange\n     * @type {event}\n     */\n\n    this.trigger('ratechange');\n  }\n  /**\n   * Retrigger the `waiting` event that was triggered by the {@link Tech}.\n   *\n   * @fires Player#waiting\n   * @listens Tech#waiting\n   * @private\n   */\n  ;\n\n  _proto.handleTechWaiting_ = function handleTechWaiting_() {\n    var _this8 = this;\n\n    this.addClass('vjs-waiting');\n    /**\n     * A readyState change on the DOM element has caused playback to stop.\n     *\n     * @event Player#waiting\n     * @type {EventTarget~Event}\n     */\n\n    this.trigger('waiting'); // Browsers may emit a timeupdate event after a waiting event. In order to prevent\n    // premature removal of the waiting class, wait for the time to change.\n\n    var timeWhenWaiting = this.currentTime();\n\n    var timeUpdateListener = function timeUpdateListener() {\n      if (timeWhenWaiting !== _this8.currentTime()) {\n        _this8.removeClass('vjs-waiting');\n\n        _this8.off('timeupdate', timeUpdateListener);\n      }\n    };\n\n    this.on('timeupdate', timeUpdateListener);\n  }\n  /**\n   * Retrigger the `canplay` event that was triggered by the {@link Tech}.\n   * > Note: This is not consistent between browsers. See #1351\n   *\n   * @fires Player#canplay\n   * @listens Tech#canplay\n   * @private\n   */\n  ;\n\n  _proto.handleTechCanPlay_ = function handleTechCanPlay_() {\n    this.removeClass('vjs-waiting');\n    /**\n     * The media has a readyState of HAVE_FUTURE_DATA or greater.\n     *\n     * @event Player#canplay\n     * @type {EventTarget~Event}\n     */\n\n    this.trigger('canplay');\n  }\n  /**\n   * Retrigger the `canplaythrough` event that was triggered by the {@link Tech}.\n   *\n   * @fires Player#canplaythrough\n   * @listens Tech#canplaythrough\n   * @private\n   */\n  ;\n\n  _proto.handleTechCanPlayThrough_ = function handleTechCanPlayThrough_() {\n    this.removeClass('vjs-waiting');\n    /**\n     * The media has a readyState of HAVE_ENOUGH_DATA or greater. This means that the\n     * entire media file can be played without buffering.\n     *\n     * @event Player#canplaythrough\n     * @type {EventTarget~Event}\n     */\n\n    this.trigger('canplaythrough');\n  }\n  /**\n   * Retrigger the `playing` event that was triggered by the {@link Tech}.\n   *\n   * @fires Player#playing\n   * @listens Tech#playing\n   * @private\n   */\n  ;\n\n  _proto.handleTechPlaying_ = function handleTechPlaying_() {\n    this.removeClass('vjs-waiting');\n    /**\n     * The media is no longer blocked from playback, and has started playing.\n     *\n     * @event Player#playing\n     * @type {EventTarget~Event}\n     */\n\n    this.trigger('playing');\n  }\n  /**\n   * Retrigger the `seeking` event that was triggered by the {@link Tech}.\n   *\n   * @fires Player#seeking\n   * @listens Tech#seeking\n   * @private\n   */\n  ;\n\n  _proto.handleTechSeeking_ = function handleTechSeeking_() {\n    this.addClass('vjs-seeking');\n    /**\n     * Fired whenever the player is jumping to a new time\n     *\n     * @event Player#seeking\n     * @type {EventTarget~Event}\n     */\n\n    this.trigger('seeking');\n  }\n  /**\n   * Retrigger the `seeked` event that was triggered by the {@link Tech}.\n   *\n   * @fires Player#seeked\n   * @listens Tech#seeked\n   * @private\n   */\n  ;\n\n  _proto.handleTechSeeked_ = function handleTechSeeked_() {\n    this.removeClass('vjs-seeking');\n    this.removeClass('vjs-ended');\n    /**\n     * Fired when the player has finished jumping to a new time\n     *\n     * @event Player#seeked\n     * @type {EventTarget~Event}\n     */\n\n    this.trigger('seeked');\n  }\n  /**\n   * Retrigger the `firstplay` event that was triggered by the {@link Tech}.\n   *\n   * @fires Player#firstplay\n   * @listens Tech#firstplay\n   * @deprecated As of 6.0 firstplay event is deprecated.\n   *             As of 6.0 passing the `starttime` option to the player and the firstplay event are deprecated.\n   * @private\n   */\n  ;\n\n  _proto.handleTechFirstPlay_ = function handleTechFirstPlay_() {\n    // If the first starttime attribute is specified\n    // then we will start at the given offset in seconds\n    if (this.options_.starttime) {\n      log$1.warn('Passing the `starttime` option to the player will be deprecated in 6.0');\n      this.currentTime(this.options_.starttime);\n    }\n\n    this.addClass('vjs-has-started');\n    /**\n     * Fired the first time a video is played. Not part of the HLS spec, and this is\n     * probably not the best implementation yet, so use sparingly. If you don't have a\n     * reason to prevent playback, use `myPlayer.one('play');` instead.\n     *\n     * @event Player#firstplay\n     * @deprecated As of 6.0 firstplay event is deprecated.\n     * @type {EventTarget~Event}\n     */\n\n    this.trigger('firstplay');\n  }\n  /**\n   * Retrigger the `pause` event that was triggered by the {@link Tech}.\n   *\n   * @fires Player#pause\n   * @listens Tech#pause\n   * @private\n   */\n  ;\n\n  _proto.handleTechPause_ = function handleTechPause_() {\n    this.removeClass('vjs-playing');\n    this.addClass('vjs-paused');\n    /**\n     * Fired whenever the media has been paused\n     *\n     * @event Player#pause\n     * @type {EventTarget~Event}\n     */\n\n    this.trigger('pause');\n  }\n  /**\n   * Retrigger the `ended` event that was triggered by the {@link Tech}.\n   *\n   * @fires Player#ended\n   * @listens Tech#ended\n   * @private\n   */\n  ;\n\n  _proto.handleTechEnded_ = function handleTechEnded_() {\n    this.addClass('vjs-ended');\n    this.removeClass('vjs-waiting');\n\n    if (this.options_.loop) {\n      this.currentTime(0);\n      this.play();\n    } else if (!this.paused()) {\n      this.pause();\n    }\n    /**\n     * Fired when the end of the media resource is reached (currentTime == duration)\n     *\n     * @event Player#ended\n     * @type {EventTarget~Event}\n     */\n\n\n    this.trigger('ended');\n  }\n  /**\n   * Fired when the duration of the media resource is first known or changed\n   *\n   * @listens Tech#durationchange\n   * @private\n   */\n  ;\n\n  _proto.handleTechDurationChange_ = function handleTechDurationChange_() {\n    this.duration(this.techGet_('duration'));\n  }\n  /**\n   * Handle a click on the media element to play/pause\n   *\n   * @param {EventTarget~Event} event\n   *        the event that caused this function to trigger\n   *\n   * @listens Tech#click\n   * @private\n   */\n  ;\n\n  _proto.handleTechClick_ = function handleTechClick_(event) {\n    // When controls are disabled a click should not toggle playback because\n    // the click is considered a control\n    if (!this.controls_) {\n      return;\n    }\n\n    if (this.paused()) {\n      silencePromise(this.play());\n    } else {\n      this.pause();\n    }\n  }\n  /**\n   * Handle a double-click on the media element to enter/exit fullscreen\n   *\n   * @param {EventTarget~Event} event\n   *        the event that caused this function to trigger\n   *\n   * @listens Tech#dblclick\n   * @private\n   */\n  ;\n\n  _proto.handleTechDoubleClick_ = function handleTechDoubleClick_(event) {\n    if (!this.controls_) {\n      return;\n    } // we do not want to toggle fullscreen state\n    // when double-clicking inside a control bar or a modal\n\n\n    var inAllowedEls = Array.prototype.some.call(this.$$('.vjs-control-bar, .vjs-modal-dialog'), function (el) {\n      return el.contains(event.target);\n    });\n\n    if (!inAllowedEls) {\n      /*\n       * options.userActions.doubleClick\n       *\n       * If `undefined` or `true`, double-click toggles fullscreen if controls are present\n       * Set to `false` to disable double-click handling\n       * Set to a function to substitute an external double-click handler\n       */\n      if (this.options_ === undefined || this.options_.userActions === undefined || this.options_.userActions.doubleClick === undefined || this.options_.userActions.doubleClick !== false) {\n        if (this.options_ !== undefined && this.options_.userActions !== undefined && typeof this.options_.userActions.doubleClick === 'function') {\n          this.options_.userActions.doubleClick.call(this, event);\n        } else if (this.isFullscreen()) {\n          this.exitFullscreen();\n        } else {\n          this.requestFullscreen();\n        }\n      }\n    }\n  }\n  /**\n   * Handle a tap on the media element. It will toggle the user\n   * activity state, which hides and shows the controls.\n   *\n   * @listens Tech#tap\n   * @private\n   */\n  ;\n\n  _proto.handleTechTap_ = function handleTechTap_() {\n    this.userActive(!this.userActive());\n  }\n  /**\n   * Handle touch to start\n   *\n   * @listens Tech#touchstart\n   * @private\n   */\n  ;\n\n  _proto.handleTechTouchStart_ = function handleTechTouchStart_() {\n    this.userWasActive = this.userActive();\n  }\n  /**\n   * Handle touch to move\n   *\n   * @listens Tech#touchmove\n   * @private\n   */\n  ;\n\n  _proto.handleTechTouchMove_ = function handleTechTouchMove_() {\n    if (this.userWasActive) {\n      this.reportUserActivity();\n    }\n  }\n  /**\n   * Handle touch to end\n   *\n   * @param {EventTarget~Event} event\n   *        the touchend event that triggered\n   *        this function\n   *\n   * @listens Tech#touchend\n   * @private\n   */\n  ;\n\n  _proto.handleTechTouchEnd_ = function handleTechTouchEnd_(event) {\n    // Stop the mouse events from also happening\n    if (event.cancelable) {\n      event.preventDefault();\n    }\n  }\n  /**\n   * native click events on the SWF aren't triggered on IE11, Win8.1RT\n   * use stageclick events triggered from inside the SWF instead\n   *\n   * @private\n   * @listens stageclick\n   */\n  ;\n\n  _proto.handleStageClick_ = function handleStageClick_() {\n    this.reportUserActivity();\n  }\n  /**\n   * @private\n   */\n  ;\n\n  _proto.toggleFullscreenClass_ = function toggleFullscreenClass_() {\n    if (this.isFullscreen()) {\n      this.addClass('vjs-fullscreen');\n    } else {\n      this.removeClass('vjs-fullscreen');\n    }\n  }\n  /**\n   * when the document fschange event triggers it calls this\n   */\n  ;\n\n  _proto.documentFullscreenChange_ = function documentFullscreenChange_(e) {\n    var targetPlayer = e.target.player; // if another player was fullscreen\n    // do a null check for targetPlayer because older firefox's would put document as e.target\n\n    if (targetPlayer && targetPlayer !== this) {\n      return;\n    }\n\n    var el = this.el();\n    var isFs = document[this.fsApi_.fullscreenElement] === el;\n\n    if (!isFs && el.matches) {\n      isFs = el.matches(':' + this.fsApi_.fullscreen);\n    } else if (!isFs && el.msMatchesSelector) {\n      isFs = el.msMatchesSelector(':' + this.fsApi_.fullscreen);\n    }\n\n    this.isFullscreen(isFs);\n  }\n  /**\n   * Handle Tech Fullscreen Change\n   *\n   * @param {EventTarget~Event} event\n   *        the fullscreenchange event that triggered this function\n   *\n   * @param {Object} data\n   *        the data that was sent with the event\n   *\n   * @private\n   * @listens Tech#fullscreenchange\n   * @fires Player#fullscreenchange\n   */\n  ;\n\n  _proto.handleTechFullscreenChange_ = function handleTechFullscreenChange_(event, data) {\n    if (data) {\n      if (data.nativeIOSFullscreen) {\n        this.toggleClass('vjs-ios-native-fs');\n      }\n\n      this.isFullscreen(data.isFullscreen);\n    }\n  };\n\n  _proto.handleTechFullscreenError_ = function handleTechFullscreenError_(event, err) {\n    this.trigger('fullscreenerror', err);\n  }\n  /**\n   * @private\n   */\n  ;\n\n  _proto.togglePictureInPictureClass_ = function togglePictureInPictureClass_() {\n    if (this.isInPictureInPicture()) {\n      this.addClass('vjs-picture-in-picture');\n    } else {\n      this.removeClass('vjs-picture-in-picture');\n    }\n  }\n  /**\n   * Handle Tech Enter Picture-in-Picture.\n   *\n   * @param {EventTarget~Event} event\n   *        the enterpictureinpicture event that triggered this function\n   *\n   * @private\n   * @listens Tech#enterpictureinpicture\n   */\n  ;\n\n  _proto.handleTechEnterPictureInPicture_ = function handleTechEnterPictureInPicture_(event) {\n    this.isInPictureInPicture(true);\n  }\n  /**\n   * Handle Tech Leave Picture-in-Picture.\n   *\n   * @param {EventTarget~Event} event\n   *        the leavepictureinpicture event that triggered this function\n   *\n   * @private\n   * @listens Tech#leavepictureinpicture\n   */\n  ;\n\n  _proto.handleTechLeavePictureInPicture_ = function handleTechLeavePictureInPicture_(event) {\n    this.isInPictureInPicture(false);\n  }\n  /**\n   * Fires when an error occurred during the loading of an audio/video.\n   *\n   * @private\n   * @listens Tech#error\n   */\n  ;\n\n  _proto.handleTechError_ = function handleTechError_() {\n    var error = this.tech_.error();\n    this.error(error);\n  }\n  /**\n   * Retrigger the `textdata` event that was triggered by the {@link Tech}.\n   *\n   * @fires Player#textdata\n   * @listens Tech#textdata\n   * @private\n   */\n  ;\n\n  _proto.handleTechTextData_ = function handleTechTextData_() {\n    var data = null;\n\n    if (arguments.length > 1) {\n      data = arguments[1];\n    }\n    /**\n     * Fires when we get a textdata event from tech\n     *\n     * @event Player#textdata\n     * @type {EventTarget~Event}\n     */\n\n\n    this.trigger('textdata', data);\n  }\n  /**\n   * Get object for cached values.\n   *\n   * @return {Object}\n   *         get the current object cache\n   */\n  ;\n\n  _proto.getCache = function getCache() {\n    return this.cache_;\n  }\n  /**\n   * Resets the internal cache object.\n   *\n   * Using this function outside the player constructor or reset method may\n   * have unintended side-effects.\n   *\n   * @private\n   */\n  ;\n\n  _proto.resetCache_ = function resetCache_() {\n    this.cache_ = {\n      // Right now, the currentTime is not _really_ cached because it is always\n      // retrieved from the tech (see: currentTime). However, for completeness,\n      // we set it to zero here to ensure that if we do start actually caching\n      // it, we reset it along with everything else.\n      currentTime: 0,\n      initTime: 0,\n      inactivityTimeout: this.options_.inactivityTimeout,\n      duration: NaN,\n      lastVolume: 1,\n      lastPlaybackRate: this.defaultPlaybackRate(),\n      media: null,\n      src: '',\n      source: {},\n      sources: [],\n      playbackRates: [],\n      volume: 1\n    };\n  }\n  /**\n   * Pass values to the playback tech\n   *\n   * @param {string} [method]\n   *        the method to call\n   *\n   * @param {Object} arg\n   *        the argument to pass\n   *\n   * @private\n   */\n  ;\n\n  _proto.techCall_ = function techCall_(method, arg) {\n    // If it's not ready yet, call method when it is\n    this.ready(function () {\n      if (method in allowedSetters) {\n        return set(this.middleware_, this.tech_, method, arg);\n      } else if (method in allowedMediators) {\n        return mediate(this.middleware_, this.tech_, method, arg);\n      }\n\n      try {\n        if (this.tech_) {\n          this.tech_[method](arg);\n        }\n      } catch (e) {\n        log$1(e);\n        throw e;\n      }\n    }, true);\n  }\n  /**\n   * Get calls can't wait for the tech, and sometimes don't need to.\n   *\n   * @param {string} method\n   *        Tech method\n   *\n   * @return {Function|undefined}\n   *         the method or undefined\n   *\n   * @private\n   */\n  ;\n\n  _proto.techGet_ = function techGet_(method) {\n    if (!this.tech_ || !this.tech_.isReady_) {\n      return;\n    }\n\n    if (method in allowedGetters) {\n      return get(this.middleware_, this.tech_, method);\n    } else if (method in allowedMediators) {\n      return mediate(this.middleware_, this.tech_, method);\n    } // Flash likes to die and reload when you hide or reposition it.\n    // In these cases the object methods go away and we get errors.\n    // TODO: Is this needed for techs other than Flash?\n    // When that happens we'll catch the errors and inform tech that it's not ready any more.\n\n\n    try {\n      return this.tech_[method]();\n    } catch (e) {\n      // When building additional tech libs, an expected method may not be defined yet\n      if (this.tech_[method] === undefined) {\n        log$1(\"Video.js: \" + method + \" method not defined for \" + this.techName_ + \" playback technology.\", e);\n        throw e;\n      } // When a method isn't available on the object it throws a TypeError\n\n\n      if (e.name === 'TypeError') {\n        log$1(\"Video.js: \" + method + \" unavailable on \" + this.techName_ + \" playback technology element.\", e);\n        this.tech_.isReady_ = false;\n        throw e;\n      } // If error unknown, just log and throw\n\n\n      log$1(e);\n      throw e;\n    }\n  }\n  /**\n   * Attempt to begin playback at the first opportunity.\n   *\n   * @return {Promise|undefined}\n   *         Returns a promise if the browser supports Promises (or one\n   *         was passed in as an option). This promise will be resolved on\n   *         the return value of play. If this is undefined it will fulfill the\n   *         promise chain otherwise the promise chain will be fulfilled when\n   *         the promise from play is fulfilled.\n   */\n  ;\n\n  _proto.play = function play() {\n    var _this9 = this;\n\n    var PromiseClass = this.options_.Promise || window.Promise;\n\n    if (PromiseClass) {\n      return new PromiseClass(function (resolve) {\n        _this9.play_(resolve);\n      });\n    }\n\n    return this.play_();\n  }\n  /**\n   * The actual logic for play, takes a callback that will be resolved on the\n   * return value of play. This allows us to resolve to the play promise if there\n   * is one on modern browsers.\n   *\n   * @private\n   * @param {Function} [callback]\n   *        The callback that should be called when the techs play is actually called\n   */\n  ;\n\n  _proto.play_ = function play_(callback) {\n    var _this10 = this;\n\n    if (callback === void 0) {\n      callback = silencePromise;\n    }\n\n    this.playCallbacks_.push(callback);\n    var isSrcReady = Boolean(!this.changingSrc_ && (this.src() || this.currentSrc())); // treat calls to play_ somewhat like the `one` event function\n\n    if (this.waitToPlay_) {\n      this.off(['ready', 'loadstart'], this.waitToPlay_);\n      this.waitToPlay_ = null;\n    } // if the player/tech is not ready or the src itself is not ready\n    // queue up a call to play on `ready` or `loadstart`\n\n\n    if (!this.isReady_ || !isSrcReady) {\n      this.waitToPlay_ = function (e) {\n        _this10.play_();\n      };\n\n      this.one(['ready', 'loadstart'], this.waitToPlay_); // if we are in Safari, there is a high chance that loadstart will trigger after the gesture timeperiod\n      // in that case, we need to prime the video element by calling load so it'll be ready in time\n\n      if (!isSrcReady && (IS_ANY_SAFARI || IS_IOS)) {\n        this.load();\n      }\n\n      return;\n    } // If the player/tech is ready and we have a source, we can attempt playback.\n\n\n    var val = this.techGet_('play'); // play was terminated if the returned value is null\n\n    if (val === null) {\n      this.runPlayTerminatedQueue_();\n    } else {\n      this.runPlayCallbacks_(val);\n    }\n  }\n  /**\n   * These functions will be run when if play is terminated. If play\n   * runPlayCallbacks_ is run these function will not be run. This allows us\n   * to differenciate between a terminated play and an actual call to play.\n   */\n  ;\n\n  _proto.runPlayTerminatedQueue_ = function runPlayTerminatedQueue_() {\n    var queue = this.playTerminatedQueue_.slice(0);\n    this.playTerminatedQueue_ = [];\n    queue.forEach(function (q) {\n      q();\n    });\n  }\n  /**\n   * When a callback to play is delayed we have to run these\n   * callbacks when play is actually called on the tech. This function\n   * runs the callbacks that were delayed and accepts the return value\n   * from the tech.\n   *\n   * @param {undefined|Promise} val\n   *        The return value from the tech.\n   */\n  ;\n\n  _proto.runPlayCallbacks_ = function runPlayCallbacks_(val) {\n    var callbacks = this.playCallbacks_.slice(0);\n    this.playCallbacks_ = []; // clear play terminatedQueue since we finished a real play\n\n    this.playTerminatedQueue_ = [];\n    callbacks.forEach(function (cb) {\n      cb(val);\n    });\n  }\n  /**\n   * Pause the video playback\n   *\n   * @return {Player}\n   *         A reference to the player object this function was called on\n   */\n  ;\n\n  _proto.pause = function pause() {\n    this.techCall_('pause');\n  }\n  /**\n   * Check if the player is paused or has yet to play\n   *\n   * @return {boolean}\n   *         - false: if the media is currently playing\n   *         - true: if media is not currently playing\n   */\n  ;\n\n  _proto.paused = function paused() {\n    // The initial state of paused should be true (in Safari it's actually false)\n    return this.techGet_('paused') === false ? false : true;\n  }\n  /**\n   * Get a TimeRange object representing the current ranges of time that the user\n   * has played.\n   *\n   * @return {TimeRange}\n   *         A time range object that represents all the increments of time that have\n   *         been played.\n   */\n  ;\n\n  _proto.played = function played() {\n    return this.techGet_('played') || createTimeRanges(0, 0);\n  }\n  /**\n   * Returns whether or not the user is \"scrubbing\". Scrubbing is\n   * when the user has clicked the progress bar handle and is\n   * dragging it along the progress bar.\n   *\n   * @param {boolean} [isScrubbing]\n   *        whether the user is or is not scrubbing\n   *\n   * @return {boolean}\n   *         The value of scrubbing when getting\n   */\n  ;\n\n  _proto.scrubbing = function scrubbing(isScrubbing) {\n    if (typeof isScrubbing === 'undefined') {\n      return this.scrubbing_;\n    }\n\n    this.scrubbing_ = !!isScrubbing;\n    this.techCall_('setScrubbing', this.scrubbing_);\n\n    if (isScrubbing) {\n      this.addClass('vjs-scrubbing');\n    } else {\n      this.removeClass('vjs-scrubbing');\n    }\n  }\n  /**\n   * Get or set the current time (in seconds)\n   *\n   * @param {number|string} [seconds]\n   *        The time to seek to in seconds\n   *\n   * @return {number}\n   *         - the current time in seconds when getting\n   */\n  ;\n\n  _proto.currentTime = function currentTime(seconds) {\n    if (typeof seconds !== 'undefined') {\n      if (seconds < 0) {\n        seconds = 0;\n      }\n\n      if (!this.isReady_ || this.changingSrc_ || !this.tech_ || !this.tech_.isReady_) {\n        this.cache_.initTime = seconds;\n        this.off('canplay', this.boundApplyInitTime_);\n        this.one('canplay', this.boundApplyInitTime_);\n        return;\n      }\n\n      this.techCall_('setCurrentTime', seconds);\n      this.cache_.initTime = 0;\n      return;\n    } // cache last currentTime and return. default to 0 seconds\n    //\n    // Caching the currentTime is meant to prevent a massive amount of reads on the tech's\n    // currentTime when scrubbing, but may not provide much performance benefit afterall.\n    // Should be tested. Also something has to read the actual current time or the cache will\n    // never get updated.\n\n\n    this.cache_.currentTime = this.techGet_('currentTime') || 0;\n    return this.cache_.currentTime;\n  }\n  /**\n   * Apply the value of initTime stored in cache as currentTime.\n   *\n   * @private\n   */\n  ;\n\n  _proto.applyInitTime_ = function applyInitTime_() {\n    this.currentTime(this.cache_.initTime);\n  }\n  /**\n   * Normally gets the length in time of the video in seconds;\n   * in all but the rarest use cases an argument will NOT be passed to the method\n   *\n   * > **NOTE**: The video must have started loading before the duration can be\n   * known, and depending on preload behaviour may not be known until the video starts\n   * playing.\n   *\n   * @fires Player#durationchange\n   *\n   * @param {number} [seconds]\n   *        The duration of the video to set in seconds\n   *\n   * @return {number}\n   *         - The duration of the video in seconds when getting\n   */\n  ;\n\n  _proto.duration = function duration(seconds) {\n    if (seconds === undefined) {\n      // return NaN if the duration is not known\n      return this.cache_.duration !== undefined ? this.cache_.duration : NaN;\n    }\n\n    seconds = parseFloat(seconds); // Standardize on Infinity for signaling video is live\n\n    if (seconds < 0) {\n      seconds = Infinity;\n    }\n\n    if (seconds !== this.cache_.duration) {\n      // Cache the last set value for optimized scrubbing (esp. Flash)\n      // TODO: Required for techs other than Flash?\n      this.cache_.duration = seconds;\n\n      if (seconds === Infinity) {\n        this.addClass('vjs-live');\n      } else {\n        this.removeClass('vjs-live');\n      }\n\n      if (!isNaN(seconds)) {\n        // Do not fire durationchange unless the duration value is known.\n        // @see [Spec]{@link https://www.w3.org/TR/2011/WD-html5-20110113/video.html#media-element-load-algorithm}\n\n        /**\n         * @event Player#durationchange\n         * @type {EventTarget~Event}\n         */\n        this.trigger('durationchange');\n      }\n    }\n  }\n  /**\n   * Calculates how much time is left in the video. Not part\n   * of the native video API.\n   *\n   * @return {number}\n   *         The time remaining in seconds\n   */\n  ;\n\n  _proto.remainingTime = function remainingTime() {\n    return this.duration() - this.currentTime();\n  }\n  /**\n   * A remaining time function that is intented to be used when\n   * the time is to be displayed directly to the user.\n   *\n   * @return {number}\n   *         The rounded time remaining in seconds\n   */\n  ;\n\n  _proto.remainingTimeDisplay = function remainingTimeDisplay() {\n    return Math.floor(this.duration()) - Math.floor(this.currentTime());\n  } //\n  // Kind of like an array of portions of the video that have been downloaded.\n\n  /**\n   * Get a TimeRange object with an array of the times of the video\n   * that have been downloaded. If you just want the percent of the\n   * video that's been downloaded, use bufferedPercent.\n   *\n   * @see [Buffered Spec]{@link http://dev.w3.org/html5/spec/video.html#dom-media-buffered}\n   *\n   * @return {TimeRange}\n   *         A mock TimeRange object (following HTML spec)\n   */\n  ;\n\n  _proto.buffered = function buffered() {\n    var buffered = this.techGet_('buffered');\n\n    if (!buffered || !buffered.length) {\n      buffered = createTimeRanges(0, 0);\n    }\n\n    return buffered;\n  }\n  /**\n   * Get the percent (as a decimal) of the video that's been downloaded.\n   * This method is not a part of the native HTML video API.\n   *\n   * @return {number}\n   *         A decimal between 0 and 1 representing the percent\n   *         that is buffered 0 being 0% and 1 being 100%\n   */\n  ;\n\n  _proto.bufferedPercent = function bufferedPercent$1() {\n    return bufferedPercent(this.buffered(), this.duration());\n  }\n  /**\n   * Get the ending time of the last buffered time range\n   * This is used in the progress bar to encapsulate all time ranges.\n   *\n   * @return {number}\n   *         The end of the last buffered time range\n   */\n  ;\n\n  _proto.bufferedEnd = function bufferedEnd() {\n    var buffered = this.buffered();\n    var duration = this.duration();\n    var end = buffered.end(buffered.length - 1);\n\n    if (end > duration) {\n      end = duration;\n    }\n\n    return end;\n  }\n  /**\n   * Get or set the current volume of the media\n   *\n   * @param  {number} [percentAsDecimal]\n   *         The new volume as a decimal percent:\n   *         - 0 is muted/0%/off\n   *         - 1.0 is 100%/full\n   *         - 0.5 is half volume or 50%\n   *\n   * @return {number}\n   *         The current volume as a percent when getting\n   */\n  ;\n\n  _proto.volume = function volume(percentAsDecimal) {\n    var vol;\n\n    if (percentAsDecimal !== undefined) {\n      // Force value to between 0 and 1\n      vol = Math.max(0, Math.min(1, parseFloat(percentAsDecimal)));\n      this.cache_.volume = vol;\n      this.techCall_('setVolume', vol);\n\n      if (vol > 0) {\n        this.lastVolume_(vol);\n      }\n\n      return;\n    } // Default to 1 when returning current volume.\n\n\n    vol = parseFloat(this.techGet_('volume'));\n    return isNaN(vol) ? 1 : vol;\n  }\n  /**\n   * Get the current muted state, or turn mute on or off\n   *\n   * @param {boolean} [muted]\n   *        - true to mute\n   *        - false to unmute\n   *\n   * @return {boolean}\n   *         - true if mute is on and getting\n   *         - false if mute is off and getting\n   */\n  ;\n\n  _proto.muted = function muted(_muted) {\n    if (_muted !== undefined) {\n      this.techCall_('setMuted', _muted);\n      return;\n    }\n\n    return this.techGet_('muted') || false;\n  }\n  /**\n   * Get the current defaultMuted state, or turn defaultMuted on or off. defaultMuted\n   * indicates the state of muted on initial playback.\n   *\n   * ```js\n   *   var myPlayer = videojs('some-player-id');\n   *\n   *   myPlayer.src(\"http://www.example.com/path/to/video.mp4\");\n   *\n   *   // get, should be false\n   *   console.log(myPlayer.defaultMuted());\n   *   // set to true\n   *   myPlayer.defaultMuted(true);\n   *   // get should be true\n   *   console.log(myPlayer.defaultMuted());\n   * ```\n   *\n   * @param {boolean} [defaultMuted]\n   *        - true to mute\n   *        - false to unmute\n   *\n   * @return {boolean|Player}\n   *         - true if defaultMuted is on and getting\n   *         - false if defaultMuted is off and getting\n   *         - A reference to the current player when setting\n   */\n  ;\n\n  _proto.defaultMuted = function defaultMuted(_defaultMuted) {\n    if (_defaultMuted !== undefined) {\n      return this.techCall_('setDefaultMuted', _defaultMuted);\n    }\n\n    return this.techGet_('defaultMuted') || false;\n  }\n  /**\n   * Get the last volume, or set it\n   *\n   * @param  {number} [percentAsDecimal]\n   *         The new last volume as a decimal percent:\n   *         - 0 is muted/0%/off\n   *         - 1.0 is 100%/full\n   *         - 0.5 is half volume or 50%\n   *\n   * @return {number}\n   *         the current value of lastVolume as a percent when getting\n   *\n   * @private\n   */\n  ;\n\n  _proto.lastVolume_ = function lastVolume_(percentAsDecimal) {\n    if (percentAsDecimal !== undefined && percentAsDecimal !== 0) {\n      this.cache_.lastVolume = percentAsDecimal;\n      return;\n    }\n\n    return this.cache_.lastVolume;\n  }\n  /**\n   * Check if current tech can support native fullscreen\n   * (e.g. with built in controls like iOS)\n   *\n   * @return {boolean}\n   *         if native fullscreen is supported\n   */\n  ;\n\n  _proto.supportsFullScreen = function supportsFullScreen() {\n    return this.techGet_('supportsFullScreen') || false;\n  }\n  /**\n   * Check if the player is in fullscreen mode or tell the player that it\n   * is or is not in fullscreen mode.\n   *\n   * > NOTE: As of the latest HTML5 spec, isFullscreen is no longer an official\n   * property and instead document.fullscreenElement is used. But isFullscreen is\n   * still a valuable property for internal player workings.\n   *\n   * @param  {boolean} [isFS]\n   *         Set the players current fullscreen state\n   *\n   * @return {boolean}\n   *         - true if fullscreen is on and getting\n   *         - false if fullscreen is off and getting\n   */\n  ;\n\n  _proto.isFullscreen = function isFullscreen(isFS) {\n    if (isFS !== undefined) {\n      var oldValue = this.isFullscreen_;\n      this.isFullscreen_ = Boolean(isFS); // if we changed fullscreen state and we're in prefixed mode, trigger fullscreenchange\n      // this is the only place where we trigger fullscreenchange events for older browsers\n      // fullWindow mode is treated as a prefixed event and will get a fullscreenchange event as well\n\n      if (this.isFullscreen_ !== oldValue && this.fsApi_.prefixed) {\n        /**\n           * @event Player#fullscreenchange\n           * @type {EventTarget~Event}\n           */\n        this.trigger('fullscreenchange');\n      }\n\n      this.toggleFullscreenClass_();\n      return;\n    }\n\n    return this.isFullscreen_;\n  }\n  /**\n   * Increase the size of the video to full screen\n   * In some browsers, full screen is not supported natively, so it enters\n   * \"full window mode\", where the video fills the browser window.\n   * In browsers and devices that support native full screen, sometimes the\n   * browser's default controls will be shown, and not the Video.js custom skin.\n   * This includes most mobile devices (iOS, Android) and older versions of\n   * Safari.\n   *\n   * @param  {Object} [fullscreenOptions]\n   *         Override the player fullscreen options\n   *\n   * @fires Player#fullscreenchange\n   */\n  ;\n\n  _proto.requestFullscreen = function requestFullscreen(fullscreenOptions) {\n    var PromiseClass = this.options_.Promise || window.Promise;\n\n    if (PromiseClass) {\n      var self = this;\n      return new PromiseClass(function (resolve, reject) {\n        function offHandler() {\n          self.off('fullscreenerror', errorHandler);\n          self.off('fullscreenchange', changeHandler);\n        }\n\n        function changeHandler() {\n          offHandler();\n          resolve();\n        }\n\n        function errorHandler(e, err) {\n          offHandler();\n          reject(err);\n        }\n\n        self.one('fullscreenchange', changeHandler);\n        self.one('fullscreenerror', errorHandler);\n        var promise = self.requestFullscreenHelper_(fullscreenOptions);\n\n        if (promise) {\n          promise.then(offHandler, offHandler);\n          promise.then(resolve, reject);\n        }\n      });\n    }\n\n    return this.requestFullscreenHelper_();\n  };\n\n  _proto.requestFullscreenHelper_ = function requestFullscreenHelper_(fullscreenOptions) {\n    var _this11 = this;\n\n    var fsOptions; // Only pass fullscreen options to requestFullscreen in spec-compliant browsers.\n    // Use defaults or player configured option unless passed directly to this method.\n\n    if (!this.fsApi_.prefixed) {\n      fsOptions = this.options_.fullscreen && this.options_.fullscreen.options || {};\n\n      if (fullscreenOptions !== undefined) {\n        fsOptions = fullscreenOptions;\n      }\n    } // This method works as follows:\n    // 1. if a fullscreen api is available, use it\n    //   1. call requestFullscreen with potential options\n    //   2. if we got a promise from above, use it to update isFullscreen()\n    // 2. otherwise, if the tech supports fullscreen, call `enterFullScreen` on it.\n    //   This is particularly used for iPhone, older iPads, and non-safari browser on iOS.\n    // 3. otherwise, use \"fullWindow\" mode\n\n\n    if (this.fsApi_.requestFullscreen) {\n      var promise = this.el_[this.fsApi_.requestFullscreen](fsOptions);\n\n      if (promise) {\n        promise.then(function () {\n          return _this11.isFullscreen(true);\n        }, function () {\n          return _this11.isFullscreen(false);\n        });\n      }\n\n      return promise;\n    } else if (this.tech_.supportsFullScreen() && !this.options_.preferFullWindow === true) {\n      // we can't take the video.js controls fullscreen but we can go fullscreen\n      // with native controls\n      this.techCall_('enterFullScreen');\n    } else {\n      // fullscreen isn't supported so we'll just stretch the video element to\n      // fill the viewport\n      this.enterFullWindow();\n    }\n  }\n  /**\n   * Return the video to its normal size after having been in full screen mode\n   *\n   * @fires Player#fullscreenchange\n   */\n  ;\n\n  _proto.exitFullscreen = function exitFullscreen() {\n    var PromiseClass = this.options_.Promise || window.Promise;\n\n    if (PromiseClass) {\n      var self = this;\n      return new PromiseClass(function (resolve, reject) {\n        function offHandler() {\n          self.off('fullscreenerror', errorHandler);\n          self.off('fullscreenchange', changeHandler);\n        }\n\n        function changeHandler() {\n          offHandler();\n          resolve();\n        }\n\n        function errorHandler(e, err) {\n          offHandler();\n          reject(err);\n        }\n\n        self.one('fullscreenchange', changeHandler);\n        self.one('fullscreenerror', errorHandler);\n        var promise = self.exitFullscreenHelper_();\n\n        if (promise) {\n          promise.then(offHandler, offHandler); // map the promise to our resolve/reject methods\n\n          promise.then(resolve, reject);\n        }\n      });\n    }\n\n    return this.exitFullscreenHelper_();\n  };\n\n  _proto.exitFullscreenHelper_ = function exitFullscreenHelper_() {\n    var _this12 = this;\n\n    if (this.fsApi_.requestFullscreen) {\n      var promise = document[this.fsApi_.exitFullscreen]();\n\n      if (promise) {\n        // we're splitting the promise here, so, we want to catch the\n        // potential error so that this chain doesn't have unhandled errors\n        silencePromise(promise.then(function () {\n          return _this12.isFullscreen(false);\n        }));\n      }\n\n      return promise;\n    } else if (this.tech_.supportsFullScreen() && !this.options_.preferFullWindow === true) {\n      this.techCall_('exitFullScreen');\n    } else {\n      this.exitFullWindow();\n    }\n  }\n  /**\n   * When fullscreen isn't supported we can stretch the\n   * video container to as wide as the browser will let us.\n   *\n   * @fires Player#enterFullWindow\n   */\n  ;\n\n  _proto.enterFullWindow = function enterFullWindow() {\n    this.isFullscreen(true);\n    this.isFullWindow = true; // Storing original doc overflow value to return to when fullscreen is off\n\n    this.docOrigOverflow = document.documentElement.style.overflow; // Add listener for esc key to exit fullscreen\n\n    on(document, 'keydown', this.boundFullWindowOnEscKey_); // Hide any scroll bars\n\n    document.documentElement.style.overflow = 'hidden'; // Apply fullscreen styles\n\n    addClass(document.body, 'vjs-full-window');\n    /**\n     * @event Player#enterFullWindow\n     * @type {EventTarget~Event}\n     */\n\n    this.trigger('enterFullWindow');\n  }\n  /**\n   * Check for call to either exit full window or\n   * full screen on ESC key\n   *\n   * @param {string} event\n   *        Event to check for key press\n   */\n  ;\n\n  _proto.fullWindowOnEscKey = function fullWindowOnEscKey(event) {\n    if (keycode.isEventKey(event, 'Esc')) {\n      if (this.isFullscreen() === true) {\n        if (!this.isFullWindow) {\n          this.exitFullscreen();\n        } else {\n          this.exitFullWindow();\n        }\n      }\n    }\n  }\n  /**\n   * Exit full window\n   *\n   * @fires Player#exitFullWindow\n   */\n  ;\n\n  _proto.exitFullWindow = function exitFullWindow() {\n    this.isFullscreen(false);\n    this.isFullWindow = false;\n    off(document, 'keydown', this.boundFullWindowOnEscKey_); // Unhide scroll bars.\n\n    document.documentElement.style.overflow = this.docOrigOverflow; // Remove fullscreen styles\n\n    removeClass(document.body, 'vjs-full-window'); // Resize the box, controller, and poster to original sizes\n    // this.positionAll();\n\n    /**\n     * @event Player#exitFullWindow\n     * @type {EventTarget~Event}\n     */\n\n    this.trigger('exitFullWindow');\n  }\n  /**\n   * Disable Picture-in-Picture mode.\n   *\n   * @param {boolean} value\n   *                  - true will disable Picture-in-Picture mode\n   *                  - false will enable Picture-in-Picture mode\n   */\n  ;\n\n  _proto.disablePictureInPicture = function disablePictureInPicture(value) {\n    if (value === undefined) {\n      return this.techGet_('disablePictureInPicture');\n    }\n\n    this.techCall_('setDisablePictureInPicture', value);\n    this.options_.disablePictureInPicture = value;\n    this.trigger('disablepictureinpicturechanged');\n  }\n  /**\n   * Check if the player is in Picture-in-Picture mode or tell the player that it\n   * is or is not in Picture-in-Picture mode.\n   *\n   * @param  {boolean} [isPiP]\n   *         Set the players current Picture-in-Picture state\n   *\n   * @return {boolean}\n   *         - true if Picture-in-Picture is on and getting\n   *         - false if Picture-in-Picture is off and getting\n   */\n  ;\n\n  _proto.isInPictureInPicture = function isInPictureInPicture(isPiP) {\n    if (isPiP !== undefined) {\n      this.isInPictureInPicture_ = !!isPiP;\n      this.togglePictureInPictureClass_();\n      return;\n    }\n\n    return !!this.isInPictureInPicture_;\n  }\n  /**\n   * Create a floating video window always on top of other windows so that users may\n   * continue consuming media while they interact with other content sites, or\n   * applications on their device.\n   *\n   * @see [Spec]{@link https://wicg.github.io/picture-in-picture}\n   *\n   * @fires Player#enterpictureinpicture\n   *\n   * @return {Promise}\n   *         A promise with a Picture-in-Picture window.\n   */\n  ;\n\n  _proto.requestPictureInPicture = function requestPictureInPicture() {\n    if ('pictureInPictureEnabled' in document && this.disablePictureInPicture() === false) {\n      /**\n       * This event fires when the player enters picture in picture mode\n       *\n       * @event Player#enterpictureinpicture\n       * @type {EventTarget~Event}\n       */\n      return this.techGet_('requestPictureInPicture');\n    }\n  }\n  /**\n   * Exit Picture-in-Picture mode.\n   *\n   * @see [Spec]{@link https://wicg.github.io/picture-in-picture}\n   *\n   * @fires Player#leavepictureinpicture\n   *\n   * @return {Promise}\n   *         A promise.\n   */\n  ;\n\n  _proto.exitPictureInPicture = function exitPictureInPicture() {\n    if ('pictureInPictureEnabled' in document) {\n      /**\n       * This event fires when the player leaves picture in picture mode\n       *\n       * @event Player#leavepictureinpicture\n       * @type {EventTarget~Event}\n       */\n      return document.exitPictureInPicture();\n    }\n  }\n  /**\n   * Called when this Player has focus and a key gets pressed down, or when\n   * any Component of this player receives a key press that it doesn't handle.\n   * This allows player-wide hotkeys (either as defined below, or optionally\n   * by an external function).\n   *\n   * @param {EventTarget~Event} event\n   *        The `keydown` event that caused this function to be called.\n   *\n   * @listens keydown\n   */\n  ;\n\n  _proto.handleKeyDown = function handleKeyDown(event) {\n    var userActions = this.options_.userActions; // Bail out if hotkeys are not configured.\n\n    if (!userActions || !userActions.hotkeys) {\n      return;\n    } // Function that determines whether or not to exclude an element from\n    // hotkeys handling.\n\n\n    var excludeElement = function excludeElement(el) {\n      var tagName = el.tagName.toLowerCase(); // The first and easiest test is for `contenteditable` elements.\n\n      if (el.isContentEditable) {\n        return true;\n      } // Inputs matching these types will still trigger hotkey handling as\n      // they are not text inputs.\n\n\n      var allowedInputTypes = ['button', 'checkbox', 'hidden', 'radio', 'reset', 'submit'];\n\n      if (tagName === 'input') {\n        return allowedInputTypes.indexOf(el.type) === -1;\n      } // The final test is by tag name. These tags will be excluded entirely.\n\n\n      var excludedTags = ['textarea'];\n      return excludedTags.indexOf(tagName) !== -1;\n    }; // Bail out if the user is focused on an interactive form element.\n\n\n    if (excludeElement(this.el_.ownerDocument.activeElement)) {\n      return;\n    }\n\n    if (typeof userActions.hotkeys === 'function') {\n      userActions.hotkeys.call(this, event);\n    } else {\n      this.handleHotkeys(event);\n    }\n  }\n  /**\n   * Called when this Player receives a hotkey keydown event.\n   * Supported player-wide hotkeys are:\n   *\n   *   f          - toggle fullscreen\n   *   m          - toggle mute\n   *   k or Space - toggle play/pause\n   *\n   * @param {EventTarget~Event} event\n   *        The `keydown` event that caused this function to be called.\n   */\n  ;\n\n  _proto.handleHotkeys = function handleHotkeys(event) {\n    var hotkeys = this.options_.userActions ? this.options_.userActions.hotkeys : {}; // set fullscreenKey, muteKey, playPauseKey from `hotkeys`, use defaults if not set\n\n    var _hotkeys$fullscreenKe = hotkeys.fullscreenKey,\n        fullscreenKey = _hotkeys$fullscreenKe === void 0 ? function (keydownEvent) {\n      return keycode.isEventKey(keydownEvent, 'f');\n    } : _hotkeys$fullscreenKe,\n        _hotkeys$muteKey = hotkeys.muteKey,\n        muteKey = _hotkeys$muteKey === void 0 ? function (keydownEvent) {\n      return keycode.isEventKey(keydownEvent, 'm');\n    } : _hotkeys$muteKey,\n        _hotkeys$playPauseKey = hotkeys.playPauseKey,\n        playPauseKey = _hotkeys$playPauseKey === void 0 ? function (keydownEvent) {\n      return keycode.isEventKey(keydownEvent, 'k') || keycode.isEventKey(keydownEvent, 'Space');\n    } : _hotkeys$playPauseKey;\n\n    if (fullscreenKey.call(this, event)) {\n      event.preventDefault();\n      event.stopPropagation();\n      var FSToggle = Component$1.getComponent('FullscreenToggle');\n\n      if (document[this.fsApi_.fullscreenEnabled] !== false) {\n        FSToggle.prototype.handleClick.call(this, event);\n      }\n    } else if (muteKey.call(this, event)) {\n      event.preventDefault();\n      event.stopPropagation();\n      var MuteToggle = Component$1.getComponent('MuteToggle');\n      MuteToggle.prototype.handleClick.call(this, event);\n    } else if (playPauseKey.call(this, event)) {\n      event.preventDefault();\n      event.stopPropagation();\n      var PlayToggle = Component$1.getComponent('PlayToggle');\n      PlayToggle.prototype.handleClick.call(this, event);\n    }\n  }\n  /**\n   * Check whether the player can play a given mimetype\n   *\n   * @see https://www.w3.org/TR/2011/WD-html5-20110113/video.html#dom-navigator-canplaytype\n   *\n   * @param {string} type\n   *        The mimetype to check\n   *\n   * @return {string}\n   *         'probably', 'maybe', or '' (empty string)\n   */\n  ;\n\n  _proto.canPlayType = function canPlayType(type) {\n    var can; // Loop through each playback technology in the options order\n\n    for (var i = 0, j = this.options_.techOrder; i < j.length; i++) {\n      var techName = j[i];\n      var tech = Tech.getTech(techName); // Support old behavior of techs being registered as components.\n      // Remove once that deprecated behavior is removed.\n\n      if (!tech) {\n        tech = Component$1.getComponent(techName);\n      } // Check if the current tech is defined before continuing\n\n\n      if (!tech) {\n        log$1.error(\"The \\\"\" + techName + \"\\\" tech is undefined. Skipped browser support check for that tech.\");\n        continue;\n      } // Check if the browser supports this technology\n\n\n      if (tech.isSupported()) {\n        can = tech.canPlayType(type);\n\n        if (can) {\n          return can;\n        }\n      }\n    }\n\n    return '';\n  }\n  /**\n   * Select source based on tech-order or source-order\n   * Uses source-order selection if `options.sourceOrder` is truthy. Otherwise,\n   * defaults to tech-order selection\n   *\n   * @param {Array} sources\n   *        The sources for a media asset\n   *\n   * @return {Object|boolean}\n   *         Object of source and tech order or false\n   */\n  ;\n\n  _proto.selectSource = function selectSource(sources) {\n    var _this13 = this;\n\n    // Get only the techs specified in `techOrder` that exist and are supported by the\n    // current platform\n    var techs = this.options_.techOrder.map(function (techName) {\n      return [techName, Tech.getTech(techName)];\n    }).filter(function (_ref) {\n      var techName = _ref[0],\n          tech = _ref[1];\n\n      // Check if the current tech is defined before continuing\n      if (tech) {\n        // Check if the browser supports this technology\n        return tech.isSupported();\n      }\n\n      log$1.error(\"The \\\"\" + techName + \"\\\" tech is undefined. Skipped browser support check for that tech.\");\n      return false;\n    }); // Iterate over each `innerArray` element once per `outerArray` element and execute\n    // `tester` with both. If `tester` returns a non-falsy value, exit early and return\n    // that value.\n\n    var findFirstPassingTechSourcePair = function findFirstPassingTechSourcePair(outerArray, innerArray, tester) {\n      var found;\n      outerArray.some(function (outerChoice) {\n        return innerArray.some(function (innerChoice) {\n          found = tester(outerChoice, innerChoice);\n\n          if (found) {\n            return true;\n          }\n        });\n      });\n      return found;\n    };\n\n    var foundSourceAndTech;\n\n    var flip = function flip(fn) {\n      return function (a, b) {\n        return fn(b, a);\n      };\n    };\n\n    var finder = function finder(_ref2, source) {\n      var techName = _ref2[0],\n          tech = _ref2[1];\n\n      if (tech.canPlaySource(source, _this13.options_[techName.toLowerCase()])) {\n        return {\n          source: source,\n          tech: techName\n        };\n      }\n    }; // Depending on the truthiness of `options.sourceOrder`, we swap the order of techs and sources\n    // to select from them based on their priority.\n\n\n    if (this.options_.sourceOrder) {\n      // Source-first ordering\n      foundSourceAndTech = findFirstPassingTechSourcePair(sources, techs, flip(finder));\n    } else {\n      // Tech-first ordering\n      foundSourceAndTech = findFirstPassingTechSourcePair(techs, sources, finder);\n    }\n\n    return foundSourceAndTech || false;\n  }\n  /**\n   * Executes source setting and getting logic\n   *\n   * @param {Tech~SourceObject|Tech~SourceObject[]|string} [source]\n   *        A SourceObject, an array of SourceObjects, or a string referencing\n   *        a URL to a media source. It is _highly recommended_ that an object\n   *        or array of objects is used here, so that source selection\n   *        algorithms can take the `type` into account.\n   *\n   *        If not provided, this method acts as a getter.\n   * @param {boolean} isRetry\n   *        Indicates whether this is being called internally as a result of a retry\n   *\n   * @return {string|undefined}\n   *         If the `source` argument is missing, returns the current source\n   *         URL. Otherwise, returns nothing/undefined.\n   */\n  ;\n\n  _proto.handleSrc_ = function handleSrc_(source, isRetry) {\n    var _this14 = this;\n\n    // getter usage\n    if (typeof source === 'undefined') {\n      return this.cache_.src || '';\n    } // Reset retry behavior for new source\n\n\n    if (this.resetRetryOnError_) {\n      this.resetRetryOnError_();\n    } // filter out invalid sources and turn our source into\n    // an array of source objects\n\n\n    var sources = filterSource(source); // if a source was passed in then it is invalid because\n    // it was filtered to a zero length Array. So we have to\n    // show an error\n\n    if (!sources.length) {\n      this.setTimeout(function () {\n        this.error({\n          code: 4,\n          message: this.localize(this.options_.notSupportedMessage)\n        });\n      }, 0);\n      return;\n    } // initial sources\n\n\n    this.changingSrc_ = true; // Only update the cached source list if we are not retrying a new source after error,\n    // since in that case we want to include the failed source(s) in the cache\n\n    if (!isRetry) {\n      this.cache_.sources = sources;\n    }\n\n    this.updateSourceCaches_(sources[0]); // middlewareSource is the source after it has been changed by middleware\n\n    setSource(this, sources[0], function (middlewareSource, mws) {\n      _this14.middleware_ = mws; // since sourceSet is async we have to update the cache again after we select a source since\n      // the source that is selected could be out of order from the cache update above this callback.\n\n      if (!isRetry) {\n        _this14.cache_.sources = sources;\n      }\n\n      _this14.updateSourceCaches_(middlewareSource);\n\n      var err = _this14.src_(middlewareSource);\n\n      if (err) {\n        if (sources.length > 1) {\n          return _this14.handleSrc_(sources.slice(1));\n        }\n\n        _this14.changingSrc_ = false; // We need to wrap this in a timeout to give folks a chance to add error event handlers\n\n        _this14.setTimeout(function () {\n          this.error({\n            code: 4,\n            message: this.localize(this.options_.notSupportedMessage)\n          });\n        }, 0); // we could not find an appropriate tech, but let's still notify the delegate that this is it\n        // this needs a better comment about why this is needed\n\n\n        _this14.triggerReady();\n\n        return;\n      }\n\n      setTech(mws, _this14.tech_);\n    }); // Try another available source if this one fails before playback.\n\n    if (this.options_.retryOnError && sources.length > 1) {\n      var retry = function retry() {\n        // Remove the error modal\n        _this14.error(null);\n\n        _this14.handleSrc_(sources.slice(1), true);\n      };\n\n      var stopListeningForErrors = function stopListeningForErrors() {\n        _this14.off('error', retry);\n      };\n\n      this.one('error', retry);\n      this.one('playing', stopListeningForErrors);\n\n      this.resetRetryOnError_ = function () {\n        _this14.off('error', retry);\n\n        _this14.off('playing', stopListeningForErrors);\n      };\n    }\n  }\n  /**\n   * Get or set the video source.\n   *\n   * @param {Tech~SourceObject|Tech~SourceObject[]|string} [source]\n   *        A SourceObject, an array of SourceObjects, or a string referencing\n   *        a URL to a media source. It is _highly recommended_ that an object\n   *        or array of objects is used here, so that source selection\n   *        algorithms can take the `type` into account.\n   *\n   *        If not provided, this method acts as a getter.\n   *\n   * @return {string|undefined}\n   *         If the `source` argument is missing, returns the current source\n   *         URL. Otherwise, returns nothing/undefined.\n   */\n  ;\n\n  _proto.src = function src(source) {\n    return this.handleSrc_(source, false);\n  }\n  /**\n   * Set the source object on the tech, returns a boolean that indicates whether\n   * there is a tech that can play the source or not\n   *\n   * @param {Tech~SourceObject} source\n   *        The source object to set on the Tech\n   *\n   * @return {boolean}\n   *         - True if there is no Tech to playback this source\n   *         - False otherwise\n   *\n   * @private\n   */\n  ;\n\n  _proto.src_ = function src_(source) {\n    var _this15 = this;\n\n    var sourceTech = this.selectSource([source]);\n\n    if (!sourceTech) {\n      return true;\n    }\n\n    if (!titleCaseEquals(sourceTech.tech, this.techName_)) {\n      this.changingSrc_ = true; // load this technology with the chosen source\n\n      this.loadTech_(sourceTech.tech, sourceTech.source);\n      this.tech_.ready(function () {\n        _this15.changingSrc_ = false;\n      });\n      return false;\n    } // wait until the tech is ready to set the source\n    // and set it synchronously if possible (#2326)\n\n\n    this.ready(function () {\n      // The setSource tech method was added with source handlers\n      // so older techs won't support it\n      // We need to check the direct prototype for the case where subclasses\n      // of the tech do not support source handlers\n      if (this.tech_.constructor.prototype.hasOwnProperty('setSource')) {\n        this.techCall_('setSource', source);\n      } else {\n        this.techCall_('src', source.src);\n      }\n\n      this.changingSrc_ = false;\n    }, true);\n    return false;\n  }\n  /**\n   * Begin loading the src data.\n   */\n  ;\n\n  _proto.load = function load() {\n    this.techCall_('load');\n  }\n  /**\n   * Reset the player. Loads the first tech in the techOrder,\n   * removes all the text tracks in the existing `tech`,\n   * and calls `reset` on the `tech`.\n   */\n  ;\n\n  _proto.reset = function reset() {\n    var _this16 = this;\n\n    var PromiseClass = this.options_.Promise || window.Promise;\n\n    if (this.paused() || !PromiseClass) {\n      this.doReset_();\n    } else {\n      var playPromise = this.play();\n      silencePromise(playPromise.then(function () {\n        return _this16.doReset_();\n      }));\n    }\n  };\n\n  _proto.doReset_ = function doReset_() {\n    if (this.tech_) {\n      this.tech_.clearTracks('text');\n    }\n\n    this.resetCache_();\n    this.poster('');\n    this.loadTech_(this.options_.techOrder[0], null);\n    this.techCall_('reset');\n    this.resetControlBarUI_();\n\n    if (isEvented(this)) {\n      this.trigger('playerreset');\n    }\n  }\n  /**\n   * Reset Control Bar's UI by calling sub-methods that reset\n   * all of Control Bar's components\n   */\n  ;\n\n  _proto.resetControlBarUI_ = function resetControlBarUI_() {\n    this.resetProgressBar_();\n    this.resetPlaybackRate_();\n    this.resetVolumeBar_();\n  }\n  /**\n   * Reset tech's progress so progress bar is reset in the UI\n   */\n  ;\n\n  _proto.resetProgressBar_ = function resetProgressBar_() {\n    this.currentTime(0);\n    var _this$controlBar = this.controlBar,\n        durationDisplay = _this$controlBar.durationDisplay,\n        remainingTimeDisplay = _this$controlBar.remainingTimeDisplay;\n\n    if (durationDisplay) {\n      durationDisplay.updateContent();\n    }\n\n    if (remainingTimeDisplay) {\n      remainingTimeDisplay.updateContent();\n    }\n  }\n  /**\n   * Reset Playback ratio\n   */\n  ;\n\n  _proto.resetPlaybackRate_ = function resetPlaybackRate_() {\n    this.playbackRate(this.defaultPlaybackRate());\n    this.handleTechRateChange_();\n  }\n  /**\n   * Reset Volume bar\n   */\n  ;\n\n  _proto.resetVolumeBar_ = function resetVolumeBar_() {\n    this.volume(1.0);\n    this.trigger('volumechange');\n  }\n  /**\n   * Returns all of the current source objects.\n   *\n   * @return {Tech~SourceObject[]}\n   *         The current source objects\n   */\n  ;\n\n  _proto.currentSources = function currentSources() {\n    var source = this.currentSource();\n    var sources = []; // assume `{}` or `{ src }`\n\n    if (Object.keys(source).length !== 0) {\n      sources.push(source);\n    }\n\n    return this.cache_.sources || sources;\n  }\n  /**\n   * Returns the current source object.\n   *\n   * @return {Tech~SourceObject}\n   *         The current source object\n   */\n  ;\n\n  _proto.currentSource = function currentSource() {\n    return this.cache_.source || {};\n  }\n  /**\n   * Returns the fully qualified URL of the current source value e.g. http://mysite.com/video.mp4\n   * Can be used in conjunction with `currentType` to assist in rebuilding the current source object.\n   *\n   * @return {string}\n   *         The current source\n   */\n  ;\n\n  _proto.currentSrc = function currentSrc() {\n    return this.currentSource() && this.currentSource().src || '';\n  }\n  /**\n   * Get the current source type e.g. video/mp4\n   * This can allow you rebuild the current source object so that you could load the same\n   * source and tech later\n   *\n   * @return {string}\n   *         The source MIME type\n   */\n  ;\n\n  _proto.currentType = function currentType() {\n    return this.currentSource() && this.currentSource().type || '';\n  }\n  /**\n   * Get or set the preload attribute\n   *\n   * @param {boolean} [value]\n   *        - true means that we should preload\n   *        - false means that we should not preload\n   *\n   * @return {string}\n   *         The preload attribute value when getting\n   */\n  ;\n\n  _proto.preload = function preload(value) {\n    if (value !== undefined) {\n      this.techCall_('setPreload', value);\n      this.options_.preload = value;\n      return;\n    }\n\n    return this.techGet_('preload');\n  }\n  /**\n   * Get or set the autoplay option. When this is a boolean it will\n   * modify the attribute on the tech. When this is a string the attribute on\n   * the tech will be removed and `Player` will handle autoplay on loadstarts.\n   *\n   * @param {boolean|string} [value]\n   *        - true: autoplay using the browser behavior\n   *        - false: do not autoplay\n   *        - 'play': call play() on every loadstart\n   *        - 'muted': call muted() then play() on every loadstart\n   *        - 'any': call play() on every loadstart. if that fails call muted() then play().\n   *        - *: values other than those listed here will be set `autoplay` to true\n   *\n   * @return {boolean|string}\n   *         The current value of autoplay when getting\n   */\n  ;\n\n  _proto.autoplay = function autoplay(value) {\n    // getter usage\n    if (value === undefined) {\n      return this.options_.autoplay || false;\n    }\n\n    var techAutoplay; // if the value is a valid string set it to that, or normalize `true` to 'play', if need be\n\n    if (typeof value === 'string' && /(any|play|muted)/.test(value) || value === true && this.options_.normalizeAutoplay) {\n      this.options_.autoplay = value;\n      this.manualAutoplay_(typeof value === 'string' ? value : 'play');\n      techAutoplay = false; // any falsy value sets autoplay to false in the browser,\n      // lets do the same\n    } else if (!value) {\n      this.options_.autoplay = false; // any other value (ie truthy) sets autoplay to true\n    } else {\n      this.options_.autoplay = true;\n    }\n\n    techAutoplay = typeof techAutoplay === 'undefined' ? this.options_.autoplay : techAutoplay; // if we don't have a tech then we do not queue up\n    // a setAutoplay call on tech ready. We do this because the\n    // autoplay option will be passed in the constructor and we\n    // do not need to set it twice\n\n    if (this.tech_) {\n      this.techCall_('setAutoplay', techAutoplay);\n    }\n  }\n  /**\n   * Set or unset the playsinline attribute.\n   * Playsinline tells the browser that non-fullscreen playback is preferred.\n   *\n   * @param {boolean} [value]\n   *        - true means that we should try to play inline by default\n   *        - false means that we should use the browser's default playback mode,\n   *          which in most cases is inline. iOS Safari is a notable exception\n   *          and plays fullscreen by default.\n   *\n   * @return {string|Player}\n   *         - the current value of playsinline\n   *         - the player when setting\n   *\n   * @see [Spec]{@link https://html.spec.whatwg.org/#attr-video-playsinline}\n   */\n  ;\n\n  _proto.playsinline = function playsinline(value) {\n    if (value !== undefined) {\n      this.techCall_('setPlaysinline', value);\n      this.options_.playsinline = value;\n      return this;\n    }\n\n    return this.techGet_('playsinline');\n  }\n  /**\n   * Get or set the loop attribute on the video element.\n   *\n   * @param {boolean} [value]\n   *        - true means that we should loop the video\n   *        - false means that we should not loop the video\n   *\n   * @return {boolean}\n   *         The current value of loop when getting\n   */\n  ;\n\n  _proto.loop = function loop(value) {\n    if (value !== undefined) {\n      this.techCall_('setLoop', value);\n      this.options_.loop = value;\n      return;\n    }\n\n    return this.techGet_('loop');\n  }\n  /**\n   * Get or set the poster image source url\n   *\n   * @fires Player#posterchange\n   *\n   * @param {string} [src]\n   *        Poster image source URL\n   *\n   * @return {string}\n   *         The current value of poster when getting\n   */\n  ;\n\n  _proto.poster = function poster(src) {\n    if (src === undefined) {\n      return this.poster_;\n    } // The correct way to remove a poster is to set as an empty string\n    // other falsey values will throw errors\n\n\n    if (!src) {\n      src = '';\n    }\n\n    if (src === this.poster_) {\n      return;\n    } // update the internal poster variable\n\n\n    this.poster_ = src; // update the tech's poster\n\n    this.techCall_('setPoster', src);\n    this.isPosterFromTech_ = false; // alert components that the poster has been set\n\n    /**\n     * This event fires when the poster image is changed on the player.\n     *\n     * @event Player#posterchange\n     * @type {EventTarget~Event}\n     */\n\n    this.trigger('posterchange');\n  }\n  /**\n   * Some techs (e.g. YouTube) can provide a poster source in an\n   * asynchronous way. We want the poster component to use this\n   * poster source so that it covers up the tech's controls.\n   * (YouTube's play button). However we only want to use this\n   * source if the player user hasn't set a poster through\n   * the normal APIs.\n   *\n   * @fires Player#posterchange\n   * @listens Tech#posterchange\n   * @private\n   */\n  ;\n\n  _proto.handleTechPosterChange_ = function handleTechPosterChange_() {\n    if ((!this.poster_ || this.options_.techCanOverridePoster) && this.tech_ && this.tech_.poster) {\n      var newPoster = this.tech_.poster() || '';\n\n      if (newPoster !== this.poster_) {\n        this.poster_ = newPoster;\n        this.isPosterFromTech_ = true; // Let components know the poster has changed\n\n        this.trigger('posterchange');\n      }\n    }\n  }\n  /**\n   * Get or set whether or not the controls are showing.\n   *\n   * @fires Player#controlsenabled\n   *\n   * @param {boolean} [bool]\n   *        - true to turn controls on\n   *        - false to turn controls off\n   *\n   * @return {boolean}\n   *         The current value of controls when getting\n   */\n  ;\n\n  _proto.controls = function controls(bool) {\n    if (bool === undefined) {\n      return !!this.controls_;\n    }\n\n    bool = !!bool; // Don't trigger a change event unless it actually changed\n\n    if (this.controls_ === bool) {\n      return;\n    }\n\n    this.controls_ = bool;\n\n    if (this.usingNativeControls()) {\n      this.techCall_('setControls', bool);\n    }\n\n    if (this.controls_) {\n      this.removeClass('vjs-controls-disabled');\n      this.addClass('vjs-controls-enabled');\n      /**\n       * @event Player#controlsenabled\n       * @type {EventTarget~Event}\n       */\n\n      this.trigger('controlsenabled');\n\n      if (!this.usingNativeControls()) {\n        this.addTechControlsListeners_();\n      }\n    } else {\n      this.removeClass('vjs-controls-enabled');\n      this.addClass('vjs-controls-disabled');\n      /**\n       * @event Player#controlsdisabled\n       * @type {EventTarget~Event}\n       */\n\n      this.trigger('controlsdisabled');\n\n      if (!this.usingNativeControls()) {\n        this.removeTechControlsListeners_();\n      }\n    }\n  }\n  /**\n   * Toggle native controls on/off. Native controls are the controls built into\n   * devices (e.g. default iPhone controls) or other techs\n   * (e.g. Vimeo Controls)\n   * **This should only be set by the current tech, because only the tech knows\n   * if it can support native controls**\n   *\n   * @fires Player#usingnativecontrols\n   * @fires Player#usingcustomcontrols\n   *\n   * @param {boolean} [bool]\n   *        - true to turn native controls on\n   *        - false to turn native controls off\n   *\n   * @return {boolean}\n   *         The current value of native controls when getting\n   */\n  ;\n\n  _proto.usingNativeControls = function usingNativeControls(bool) {\n    if (bool === undefined) {\n      return !!this.usingNativeControls_;\n    }\n\n    bool = !!bool; // Don't trigger a change event unless it actually changed\n\n    if (this.usingNativeControls_ === bool) {\n      return;\n    }\n\n    this.usingNativeControls_ = bool;\n\n    if (this.usingNativeControls_) {\n      this.addClass('vjs-using-native-controls');\n      /**\n       * player is using the native device controls\n       *\n       * @event Player#usingnativecontrols\n       * @type {EventTarget~Event}\n       */\n\n      this.trigger('usingnativecontrols');\n    } else {\n      this.removeClass('vjs-using-native-controls');\n      /**\n       * player is using the custom HTML controls\n       *\n       * @event Player#usingcustomcontrols\n       * @type {EventTarget~Event}\n       */\n\n      this.trigger('usingcustomcontrols');\n    }\n  }\n  /**\n   * Set or get the current MediaError\n   *\n   * @fires Player#error\n   *\n   * @param  {MediaError|string|number} [err]\n   *         A MediaError or a string/number to be turned\n   *         into a MediaError\n   *\n   * @return {MediaError|null}\n   *         The current MediaError when getting (or null)\n   */\n  ;\n\n  _proto.error = function error(err) {\n    var _this17 = this;\n\n    if (err === undefined) {\n      return this.error_ || null;\n    } // allow hooks to modify error object\n\n\n    hooks('beforeerror').forEach(function (hookFunction) {\n      var newErr = hookFunction(_this17, err);\n\n      if (!(isObject(newErr) && !Array.isArray(newErr) || typeof newErr === 'string' || typeof newErr === 'number' || newErr === null)) {\n        _this17.log.error('please return a value that MediaError expects in beforeerror hooks');\n\n        return;\n      }\n\n      err = newErr;\n    }); // Suppress the first error message for no compatible source until\n    // user interaction\n\n    if (this.options_.suppressNotSupportedError && err && err.code === 4) {\n      var triggerSuppressedError = function triggerSuppressedError() {\n        this.error(err);\n      };\n\n      this.options_.suppressNotSupportedError = false;\n      this.any(['click', 'touchstart'], triggerSuppressedError);\n      this.one('loadstart', function () {\n        this.off(['click', 'touchstart'], triggerSuppressedError);\n      });\n      return;\n    } // restoring to default\n\n\n    if (err === null) {\n      this.error_ = err;\n      this.removeClass('vjs-error');\n\n      if (this.errorDisplay) {\n        this.errorDisplay.close();\n      }\n\n      return;\n    }\n\n    this.error_ = new MediaError(err); // add the vjs-error classname to the player\n\n    this.addClass('vjs-error'); // log the name of the error type and any message\n    // IE11 logs \"[object object]\" and required you to expand message to see error object\n\n    log$1.error(\"(CODE:\" + this.error_.code + \" \" + MediaError.errorTypes[this.error_.code] + \")\", this.error_.message, this.error_);\n    /**\n     * @event Player#error\n     * @type {EventTarget~Event}\n     */\n\n    this.trigger('error'); // notify hooks of the per player error\n\n    hooks('error').forEach(function (hookFunction) {\n      return hookFunction(_this17, _this17.error_);\n    });\n    return;\n  }\n  /**\n   * Report user activity\n   *\n   * @param {Object} event\n   *        Event object\n   */\n  ;\n\n  _proto.reportUserActivity = function reportUserActivity(event) {\n    this.userActivity_ = true;\n  }\n  /**\n   * Get/set if user is active\n   *\n   * @fires Player#useractive\n   * @fires Player#userinactive\n   *\n   * @param {boolean} [bool]\n   *        - true if the user is active\n   *        - false if the user is inactive\n   *\n   * @return {boolean}\n   *         The current value of userActive when getting\n   */\n  ;\n\n  _proto.userActive = function userActive(bool) {\n    if (bool === undefined) {\n      return this.userActive_;\n    }\n\n    bool = !!bool;\n\n    if (bool === this.userActive_) {\n      return;\n    }\n\n    this.userActive_ = bool;\n\n    if (this.userActive_) {\n      this.userActivity_ = true;\n      this.removeClass('vjs-user-inactive');\n      this.addClass('vjs-user-active');\n      /**\n       * @event Player#useractive\n       * @type {EventTarget~Event}\n       */\n\n      this.trigger('useractive');\n      return;\n    } // Chrome/Safari/IE have bugs where when you change the cursor it can\n    // trigger a mousemove event. This causes an issue when you're hiding\n    // the cursor when the user is inactive, and a mousemove signals user\n    // activity. Making it impossible to go into inactive mode. Specifically\n    // this happens in fullscreen when we really need to hide the cursor.\n    //\n    // When this gets resolved in ALL browsers it can be removed\n    // https://code.google.com/p/chromium/issues/detail?id=103041\n\n\n    if (this.tech_) {\n      this.tech_.one('mousemove', function (e) {\n        e.stopPropagation();\n        e.preventDefault();\n      });\n    }\n\n    this.userActivity_ = false;\n    this.removeClass('vjs-user-active');\n    this.addClass('vjs-user-inactive');\n    /**\n     * @event Player#userinactive\n     * @type {EventTarget~Event}\n     */\n\n    this.trigger('userinactive');\n  }\n  /**\n   * Listen for user activity based on timeout value\n   *\n   * @private\n   */\n  ;\n\n  _proto.listenForUserActivity_ = function listenForUserActivity_() {\n    var mouseInProgress;\n    var lastMoveX;\n    var lastMoveY;\n    var handleActivity = bind(this, this.reportUserActivity);\n\n    var handleMouseMove = function handleMouseMove(e) {\n      // #1068 - Prevent mousemove spamming\n      // Chrome Bug: https://code.google.com/p/chromium/issues/detail?id=366970\n      if (e.screenX !== lastMoveX || e.screenY !== lastMoveY) {\n        lastMoveX = e.screenX;\n        lastMoveY = e.screenY;\n        handleActivity();\n      }\n    };\n\n    var handleMouseDown = function handleMouseDown() {\n      handleActivity(); // For as long as the they are touching the device or have their mouse down,\n      // we consider them active even if they're not moving their finger or mouse.\n      // So we want to continue to update that they are active\n\n      this.clearInterval(mouseInProgress); // Setting userActivity=true now and setting the interval to the same time\n      // as the activityCheck interval (250) should ensure we never miss the\n      // next activityCheck\n\n      mouseInProgress = this.setInterval(handleActivity, 250);\n    };\n\n    var handleMouseUpAndMouseLeave = function handleMouseUpAndMouseLeave(event) {\n      handleActivity(); // Stop the interval that maintains activity if the mouse/touch is down\n\n      this.clearInterval(mouseInProgress);\n    }; // Any mouse movement will be considered user activity\n\n\n    this.on('mousedown', handleMouseDown);\n    this.on('mousemove', handleMouseMove);\n    this.on('mouseup', handleMouseUpAndMouseLeave);\n    this.on('mouseleave', handleMouseUpAndMouseLeave);\n    var controlBar = this.getChild('controlBar'); // Fixes bug on Android & iOS where when tapping progressBar (when control bar is displayed)\n    // controlBar would no longer be hidden by default timeout.\n\n    if (controlBar && !IS_IOS && !IS_ANDROID) {\n      controlBar.on('mouseenter', function (event) {\n        if (this.player().options_.inactivityTimeout !== 0) {\n          this.player().cache_.inactivityTimeout = this.player().options_.inactivityTimeout;\n        }\n\n        this.player().options_.inactivityTimeout = 0;\n      });\n      controlBar.on('mouseleave', function (event) {\n        this.player().options_.inactivityTimeout = this.player().cache_.inactivityTimeout;\n      });\n    } // Listen for keyboard navigation\n    // Shouldn't need to use inProgress interval because of key repeat\n\n\n    this.on('keydown', handleActivity);\n    this.on('keyup', handleActivity); // Run an interval every 250 milliseconds instead of stuffing everything into\n    // the mousemove/touchmove function itself, to prevent performance degradation.\n    // `this.reportUserActivity` simply sets this.userActivity_ to true, which\n    // then gets picked up by this loop\n    // http://ejohn.org/blog/learning-from-twitter/\n\n    var inactivityTimeout;\n    this.setInterval(function () {\n      // Check to see if mouse/touch activity has happened\n      if (!this.userActivity_) {\n        return;\n      } // Reset the activity tracker\n\n\n      this.userActivity_ = false; // If the user state was inactive, set the state to active\n\n      this.userActive(true); // Clear any existing inactivity timeout to start the timer over\n\n      this.clearTimeout(inactivityTimeout);\n      var timeout = this.options_.inactivityTimeout;\n\n      if (timeout <= 0) {\n        return;\n      } // In <timeout> milliseconds, if no more activity has occurred the\n      // user will be considered inactive\n\n\n      inactivityTimeout = this.setTimeout(function () {\n        // Protect against the case where the inactivityTimeout can trigger just\n        // before the next user activity is picked up by the activity check loop\n        // causing a flicker\n        if (!this.userActivity_) {\n          this.userActive(false);\n        }\n      }, timeout);\n    }, 250);\n  }\n  /**\n   * Gets or sets the current playback rate. A playback rate of\n   * 1.0 represents normal speed and 0.5 would indicate half-speed\n   * playback, for instance.\n   *\n   * @see https://html.spec.whatwg.org/multipage/embedded-content.html#dom-media-playbackrate\n   *\n   * @param {number} [rate]\n   *       New playback rate to set.\n   *\n   * @return {number}\n   *         The current playback rate when getting or 1.0\n   */\n  ;\n\n  _proto.playbackRate = function playbackRate(rate) {\n    if (rate !== undefined) {\n      // NOTE: this.cache_.lastPlaybackRate is set from the tech handler\n      // that is registered above\n      this.techCall_('setPlaybackRate', rate);\n      return;\n    }\n\n    if (this.tech_ && this.tech_.featuresPlaybackRate) {\n      return this.cache_.lastPlaybackRate || this.techGet_('playbackRate');\n    }\n\n    return 1.0;\n  }\n  /**\n   * Gets or sets the current default playback rate. A default playback rate of\n   * 1.0 represents normal speed and 0.5 would indicate half-speed playback, for instance.\n   * defaultPlaybackRate will only represent what the initial playbackRate of a video was, not\n   * not the current playbackRate.\n   *\n   * @see https://html.spec.whatwg.org/multipage/embedded-content.html#dom-media-defaultplaybackrate\n   *\n   * @param {number} [rate]\n   *       New default playback rate to set.\n   *\n   * @return {number|Player}\n   *         - The default playback rate when getting or 1.0\n   *         - the player when setting\n   */\n  ;\n\n  _proto.defaultPlaybackRate = function defaultPlaybackRate(rate) {\n    if (rate !== undefined) {\n      return this.techCall_('setDefaultPlaybackRate', rate);\n    }\n\n    if (this.tech_ && this.tech_.featuresPlaybackRate) {\n      return this.techGet_('defaultPlaybackRate');\n    }\n\n    return 1.0;\n  }\n  /**\n   * Gets or sets the audio flag\n   *\n   * @param {boolean} bool\n   *        - true signals that this is an audio player\n   *        - false signals that this is not an audio player\n   *\n   * @return {boolean}\n   *         The current value of isAudio when getting\n   */\n  ;\n\n  _proto.isAudio = function isAudio(bool) {\n    if (bool !== undefined) {\n      this.isAudio_ = !!bool;\n      return;\n    }\n\n    return !!this.isAudio_;\n  }\n  /**\n   * A helper method for adding a {@link TextTrack} to our\n   * {@link TextTrackList}.\n   *\n   * In addition to the W3C settings we allow adding additional info through options.\n   *\n   * @see http://www.w3.org/html/wg/drafts/html/master/embedded-content-0.html#dom-media-addtexttrack\n   *\n   * @param {string} [kind]\n   *        the kind of TextTrack you are adding\n   *\n   * @param {string} [label]\n   *        the label to give the TextTrack label\n   *\n   * @param {string} [language]\n   *        the language to set on the TextTrack\n   *\n   * @return {TextTrack|undefined}\n   *         the TextTrack that was added or undefined\n   *         if there is no tech\n   */\n  ;\n\n  _proto.addTextTrack = function addTextTrack(kind, label, language) {\n    if (this.tech_) {\n      return this.tech_.addTextTrack(kind, label, language);\n    }\n  }\n  /**\n   * Create a remote {@link TextTrack} and an {@link HTMLTrackElement}.\n   * When manualCleanup is set to false, the track will be automatically removed\n   * on source changes.\n   *\n   * @param {Object} options\n   *        Options to pass to {@link HTMLTrackElement} during creation. See\n   *        {@link HTMLTrackElement} for object properties that you should use.\n   *\n   * @param {boolean} [manualCleanup=true] if set to false, the TextTrack will be\n   *                                       removed on a source change\n   *\n   * @return {HtmlTrackElement}\n   *         the HTMLTrackElement that was created and added\n   *         to the HtmlTrackElementList and the remote\n   *         TextTrackList\n   *\n   * @deprecated The default value of the \"manualCleanup\" parameter will default\n   *             to \"false\" in upcoming versions of Video.js\n   */\n  ;\n\n  _proto.addRemoteTextTrack = function addRemoteTextTrack(options, manualCleanup) {\n    if (this.tech_) {\n      return this.tech_.addRemoteTextTrack(options, manualCleanup);\n    }\n  }\n  /**\n   * Remove a remote {@link TextTrack} from the respective\n   * {@link TextTrackList} and {@link HtmlTrackElementList}.\n   *\n   * @param {Object} track\n   *        Remote {@link TextTrack} to remove\n   *\n   * @return {undefined}\n   *         does not return anything\n   */\n  ;\n\n  _proto.removeRemoteTextTrack = function removeRemoteTextTrack(obj) {\n    if (obj === void 0) {\n      obj = {};\n    }\n\n    var _obj = obj,\n        track = _obj.track;\n\n    if (!track) {\n      track = obj;\n    } // destructure the input into an object with a track argument, defaulting to arguments[0]\n    // default the whole argument to an empty object if nothing was passed in\n\n\n    if (this.tech_) {\n      return this.tech_.removeRemoteTextTrack(track);\n    }\n  }\n  /**\n   * Gets available media playback quality metrics as specified by the W3C's Media\n   * Playback Quality API.\n   *\n   * @see [Spec]{@link https://wicg.github.io/media-playback-quality}\n   *\n   * @return {Object|undefined}\n   *         An object with supported media playback quality metrics or undefined if there\n   *         is no tech or the tech does not support it.\n   */\n  ;\n\n  _proto.getVideoPlaybackQuality = function getVideoPlaybackQuality() {\n    return this.techGet_('getVideoPlaybackQuality');\n  }\n  /**\n   * Get video width\n   *\n   * @return {number}\n   *         current video width\n   */\n  ;\n\n  _proto.videoWidth = function videoWidth() {\n    return this.tech_ && this.tech_.videoWidth && this.tech_.videoWidth() || 0;\n  }\n  /**\n   * Get video height\n   *\n   * @return {number}\n   *         current video height\n   */\n  ;\n\n  _proto.videoHeight = function videoHeight() {\n    return this.tech_ && this.tech_.videoHeight && this.tech_.videoHeight() || 0;\n  }\n  /**\n   * The player's language code.\n   *\n   * Changing the langauge will trigger\n   * [languagechange]{@link Player#event:languagechange}\n   * which Components can use to update control text.\n   * ClickableComponent will update its control text by default on\n   * [languagechange]{@link Player#event:languagechange}.\n   *\n   * @fires Player#languagechange\n   *\n   * @param {string} [code]\n   *        the language code to set the player to\n   *\n   * @return {string}\n   *         The current language code when getting\n   */\n  ;\n\n  _proto.language = function language(code) {\n    if (code === undefined) {\n      return this.language_;\n    }\n\n    if (this.language_ !== String(code).toLowerCase()) {\n      this.language_ = String(code).toLowerCase(); // during first init, it's possible some things won't be evented\n\n      if (isEvented(this)) {\n        /**\n        * fires when the player language change\n        *\n        * @event Player#languagechange\n        * @type {EventTarget~Event}\n        */\n        this.trigger('languagechange');\n      }\n    }\n  }\n  /**\n   * Get the player's language dictionary\n   * Merge every time, because a newly added plugin might call videojs.addLanguage() at any time\n   * Languages specified directly in the player options have precedence\n   *\n   * @return {Array}\n   *         An array of of supported languages\n   */\n  ;\n\n  _proto.languages = function languages() {\n    return mergeOptions$3(Player.prototype.options_.languages, this.languages_);\n  }\n  /**\n   * returns a JavaScript object reperesenting the current track\n   * information. **DOES not return it as JSON**\n   *\n   * @return {Object}\n   *         Object representing the current of track info\n   */\n  ;\n\n  _proto.toJSON = function toJSON() {\n    var options = mergeOptions$3(this.options_);\n    var tracks = options.tracks;\n    options.tracks = [];\n\n    for (var i = 0; i < tracks.length; i++) {\n      var track = tracks[i]; // deep merge tracks and null out player so no circular references\n\n      track = mergeOptions$3(track);\n      track.player = undefined;\n      options.tracks[i] = track;\n    }\n\n    return options;\n  }\n  /**\n   * Creates a simple modal dialog (an instance of the {@link ModalDialog}\n   * component) that immediately overlays the player with arbitrary\n   * content and removes itself when closed.\n   *\n   * @param {string|Function|Element|Array|null} content\n   *        Same as {@link ModalDialog#content}'s param of the same name.\n   *        The most straight-forward usage is to provide a string or DOM\n   *        element.\n   *\n   * @param {Object} [options]\n   *        Extra options which will be passed on to the {@link ModalDialog}.\n   *\n   * @return {ModalDialog}\n   *         the {@link ModalDialog} that was created\n   */\n  ;\n\n  _proto.createModal = function createModal(content, options) {\n    var _this18 = this;\n\n    options = options || {};\n    options.content = content || '';\n    var modal = new ModalDialog(this, options);\n    this.addChild(modal);\n    modal.on('dispose', function () {\n      _this18.removeChild(modal);\n    });\n    modal.open();\n    return modal;\n  }\n  /**\n   * Change breakpoint classes when the player resizes.\n   *\n   * @private\n   */\n  ;\n\n  _proto.updateCurrentBreakpoint_ = function updateCurrentBreakpoint_() {\n    if (!this.responsive()) {\n      return;\n    }\n\n    var currentBreakpoint = this.currentBreakpoint();\n    var currentWidth = this.currentWidth();\n\n    for (var i = 0; i < BREAKPOINT_ORDER.length; i++) {\n      var candidateBreakpoint = BREAKPOINT_ORDER[i];\n      var maxWidth = this.breakpoints_[candidateBreakpoint];\n\n      if (currentWidth <= maxWidth) {\n        // The current breakpoint did not change, nothing to do.\n        if (currentBreakpoint === candidateBreakpoint) {\n          return;\n        } // Only remove a class if there is a current breakpoint.\n\n\n        if (currentBreakpoint) {\n          this.removeClass(BREAKPOINT_CLASSES[currentBreakpoint]);\n        }\n\n        this.addClass(BREAKPOINT_CLASSES[candidateBreakpoint]);\n        this.breakpoint_ = candidateBreakpoint;\n        break;\n      }\n    }\n  }\n  /**\n   * Removes the current breakpoint.\n   *\n   * @private\n   */\n  ;\n\n  _proto.removeCurrentBreakpoint_ = function removeCurrentBreakpoint_() {\n    var className = this.currentBreakpointClass();\n    this.breakpoint_ = '';\n\n    if (className) {\n      this.removeClass(className);\n    }\n  }\n  /**\n   * Get or set breakpoints on the player.\n   *\n   * Calling this method with an object or `true` will remove any previous\n   * custom breakpoints and start from the defaults again.\n   *\n   * @param  {Object|boolean} [breakpoints]\n   *         If an object is given, it can be used to provide custom\n   *         breakpoints. If `true` is given, will set default breakpoints.\n   *         If this argument is not given, will simply return the current\n   *         breakpoints.\n   *\n   * @param  {number} [breakpoints.tiny]\n   *         The maximum width for the \"vjs-layout-tiny\" class.\n   *\n   * @param  {number} [breakpoints.xsmall]\n   *         The maximum width for the \"vjs-layout-x-small\" class.\n   *\n   * @param  {number} [breakpoints.small]\n   *         The maximum width for the \"vjs-layout-small\" class.\n   *\n   * @param  {number} [breakpoints.medium]\n   *         The maximum width for the \"vjs-layout-medium\" class.\n   *\n   * @param  {number} [breakpoints.large]\n   *         The maximum width for the \"vjs-layout-large\" class.\n   *\n   * @param  {number} [breakpoints.xlarge]\n   *         The maximum width for the \"vjs-layout-x-large\" class.\n   *\n   * @param  {number} [breakpoints.huge]\n   *         The maximum width for the \"vjs-layout-huge\" class.\n   *\n   * @return {Object}\n   *         An object mapping breakpoint names to maximum width values.\n   */\n  ;\n\n  _proto.breakpoints = function breakpoints(_breakpoints) {\n    // Used as a getter.\n    if (_breakpoints === undefined) {\n      return assign(this.breakpoints_);\n    }\n\n    this.breakpoint_ = '';\n    this.breakpoints_ = assign({}, DEFAULT_BREAKPOINTS, _breakpoints); // When breakpoint definitions change, we need to update the currently\n    // selected breakpoint.\n\n    this.updateCurrentBreakpoint_(); // Clone the breakpoints before returning.\n\n    return assign(this.breakpoints_);\n  }\n  /**\n   * Get or set a flag indicating whether or not this player should adjust\n   * its UI based on its dimensions.\n   *\n   * @param  {boolean} value\n   *         Should be `true` if the player should adjust its UI based on its\n   *         dimensions; otherwise, should be `false`.\n   *\n   * @return {boolean}\n   *         Will be `true` if this player should adjust its UI based on its\n   *         dimensions; otherwise, will be `false`.\n   */\n  ;\n\n  _proto.responsive = function responsive(value) {\n    // Used as a getter.\n    if (value === undefined) {\n      return this.responsive_;\n    }\n\n    value = Boolean(value);\n    var current = this.responsive_; // Nothing changed.\n\n    if (value === current) {\n      return;\n    } // The value actually changed, set it.\n\n\n    this.responsive_ = value; // Start listening for breakpoints and set the initial breakpoint if the\n    // player is now responsive.\n\n    if (value) {\n      this.on('playerresize', this.boundUpdateCurrentBreakpoint_);\n      this.updateCurrentBreakpoint_(); // Stop listening for breakpoints if the player is no longer responsive.\n    } else {\n      this.off('playerresize', this.boundUpdateCurrentBreakpoint_);\n      this.removeCurrentBreakpoint_();\n    }\n\n    return value;\n  }\n  /**\n   * Get current breakpoint name, if any.\n   *\n   * @return {string}\n   *         If there is currently a breakpoint set, returns a the key from the\n   *         breakpoints object matching it. Otherwise, returns an empty string.\n   */\n  ;\n\n  _proto.currentBreakpoint = function currentBreakpoint() {\n    return this.breakpoint_;\n  }\n  /**\n   * Get the current breakpoint class name.\n   *\n   * @return {string}\n   *         The matching class name (e.g. `\"vjs-layout-tiny\"` or\n   *         `\"vjs-layout-large\"`) for the current breakpoint. Empty string if\n   *         there is no current breakpoint.\n   */\n  ;\n\n  _proto.currentBreakpointClass = function currentBreakpointClass() {\n    return BREAKPOINT_CLASSES[this.breakpoint_] || '';\n  }\n  /**\n   * An object that describes a single piece of media.\n   *\n   * Properties that are not part of this type description will be retained; so,\n   * this can be viewed as a generic metadata storage mechanism as well.\n   *\n   * @see      {@link https://wicg.github.io/mediasession/#the-mediametadata-interface}\n   * @typedef  {Object} Player~MediaObject\n   *\n   * @property {string} [album]\n   *           Unused, except if this object is passed to the `MediaSession`\n   *           API.\n   *\n   * @property {string} [artist]\n   *           Unused, except if this object is passed to the `MediaSession`\n   *           API.\n   *\n   * @property {Object[]} [artwork]\n   *           Unused, except if this object is passed to the `MediaSession`\n   *           API. If not specified, will be populated via the `poster`, if\n   *           available.\n   *\n   * @property {string} [poster]\n   *           URL to an image that will display before playback.\n   *\n   * @property {Tech~SourceObject|Tech~SourceObject[]|string} [src]\n   *           A single source object, an array of source objects, or a string\n   *           referencing a URL to a media source. It is _highly recommended_\n   *           that an object or array of objects is used here, so that source\n   *           selection algorithms can take the `type` into account.\n   *\n   * @property {string} [title]\n   *           Unused, except if this object is passed to the `MediaSession`\n   *           API.\n   *\n   * @property {Object[]} [textTracks]\n   *           An array of objects to be used to create text tracks, following\n   *           the {@link https://www.w3.org/TR/html50/embedded-content-0.html#the-track-element|native track element format}.\n   *           For ease of removal, these will be created as \"remote\" text\n   *           tracks and set to automatically clean up on source changes.\n   *\n   *           These objects may have properties like `src`, `kind`, `label`,\n   *           and `language`, see {@link Tech#createRemoteTextTrack}.\n   */\n\n  /**\n   * Populate the player using a {@link Player~MediaObject|MediaObject}.\n   *\n   * @param  {Player~MediaObject} media\n   *         A media object.\n   *\n   * @param  {Function} ready\n   *         A callback to be called when the player is ready.\n   */\n  ;\n\n  _proto.loadMedia = function loadMedia(media, ready) {\n    var _this19 = this;\n\n    if (!media || typeof media !== 'object') {\n      return;\n    }\n\n    this.reset(); // Clone the media object so it cannot be mutated from outside.\n\n    this.cache_.media = mergeOptions$3(media);\n    var _this$cache_$media = this.cache_.media,\n        artwork = _this$cache_$media.artwork,\n        poster = _this$cache_$media.poster,\n        src = _this$cache_$media.src,\n        textTracks = _this$cache_$media.textTracks; // If `artwork` is not given, create it using `poster`.\n\n    if (!artwork && poster) {\n      this.cache_.media.artwork = [{\n        src: poster,\n        type: getMimetype(poster)\n      }];\n    }\n\n    if (src) {\n      this.src(src);\n    }\n\n    if (poster) {\n      this.poster(poster);\n    }\n\n    if (Array.isArray(textTracks)) {\n      textTracks.forEach(function (tt) {\n        return _this19.addRemoteTextTrack(tt, false);\n      });\n    }\n\n    this.ready(ready);\n  }\n  /**\n   * Get a clone of the current {@link Player~MediaObject} for this player.\n   *\n   * If the `loadMedia` method has not been used, will attempt to return a\n   * {@link Player~MediaObject} based on the current state of the player.\n   *\n   * @return {Player~MediaObject}\n   */\n  ;\n\n  _proto.getMedia = function getMedia() {\n    if (!this.cache_.media) {\n      var poster = this.poster();\n      var src = this.currentSources();\n      var textTracks = Array.prototype.map.call(this.remoteTextTracks(), function (tt) {\n        return {\n          kind: tt.kind,\n          label: tt.label,\n          language: tt.language,\n          src: tt.src\n        };\n      });\n      var media = {\n        src: src,\n        textTracks: textTracks\n      };\n\n      if (poster) {\n        media.poster = poster;\n        media.artwork = [{\n          src: media.poster,\n          type: getMimetype(media.poster)\n        }];\n      }\n\n      return media;\n    }\n\n    return mergeOptions$3(this.cache_.media);\n  }\n  /**\n   * Gets tag settings\n   *\n   * @param {Element} tag\n   *        The player tag\n   *\n   * @return {Object}\n   *         An object containing all of the settings\n   *         for a player tag\n   */\n  ;\n\n  Player.getTagSettings = function getTagSettings(tag) {\n    var baseOptions = {\n      sources: [],\n      tracks: []\n    };\n    var tagOptions = getAttributes(tag);\n    var dataSetup = tagOptions['data-setup'];\n\n    if (hasClass(tag, 'vjs-fill')) {\n      tagOptions.fill = true;\n    }\n\n    if (hasClass(tag, 'vjs-fluid')) {\n      tagOptions.fluid = true;\n    } // Check if data-setup attr exists.\n\n\n    if (dataSetup !== null) {\n      // Parse options JSON\n      // If empty string, make it a parsable json object.\n      var _safeParseTuple = safeParseTuple(dataSetup || '{}'),\n          err = _safeParseTuple[0],\n          data = _safeParseTuple[1];\n\n      if (err) {\n        log$1.error(err);\n      }\n\n      assign(tagOptions, data);\n    }\n\n    assign(baseOptions, tagOptions); // Get tag children settings\n\n    if (tag.hasChildNodes()) {\n      var children = tag.childNodes;\n\n      for (var i = 0, j = children.length; i < j; i++) {\n        var child = children[i]; // Change case needed: http://ejohn.org/blog/nodename-case-sensitivity/\n\n        var childName = child.nodeName.toLowerCase();\n\n        if (childName === 'source') {\n          baseOptions.sources.push(getAttributes(child));\n        } else if (childName === 'track') {\n          baseOptions.tracks.push(getAttributes(child));\n        }\n      }\n    }\n\n    return baseOptions;\n  }\n  /**\n   * Determine whether or not flexbox is supported\n   *\n   * @return {boolean}\n   *         - true if flexbox is supported\n   *         - false if flexbox is not supported\n   */\n  ;\n\n  _proto.flexNotSupported_ = function flexNotSupported_() {\n    var elem = document.createElement('i'); // Note: We don't actually use flexBasis (or flexOrder), but it's one of the more\n    // common flex features that we can rely on when checking for flex support.\n\n    return !('flexBasis' in elem.style || 'webkitFlexBasis' in elem.style || 'mozFlexBasis' in elem.style || 'msFlexBasis' in elem.style || // IE10-specific (2012 flex spec), available for completeness\n    'msFlexOrder' in elem.style);\n  }\n  /**\n   * Set debug mode to enable/disable logs at info level.\n   *\n   * @param {boolean} enabled\n   * @fires Player#debugon\n   * @fires Player#debugoff\n   */\n  ;\n\n  _proto.debug = function debug(enabled) {\n    if (enabled === undefined) {\n      return this.debugEnabled_;\n    }\n\n    if (enabled) {\n      this.trigger('debugon');\n      this.previousLogLevel_ = this.log.level;\n      this.log.level('debug');\n      this.debugEnabled_ = true;\n    } else {\n      this.trigger('debugoff');\n      this.log.level(this.previousLogLevel_);\n      this.previousLogLevel_ = undefined;\n      this.debugEnabled_ = false;\n    }\n  }\n  /**\n   * Set or get current playback rates.\n   * Takes an array and updates the playback rates menu with the new items.\n   * Pass in an empty array to hide the menu.\n   * Values other than arrays are ignored.\n   *\n   * @fires Player#playbackrateschange\n   * @param {number[]} newRates\n   *                   The new rates that the playback rates menu should update to.\n   *                   An empty array will hide the menu\n   * @return {number[]} When used as a getter will return the current playback rates\n   */\n  ;\n\n  _proto.playbackRates = function playbackRates(newRates) {\n    if (newRates === undefined) {\n      return this.cache_.playbackRates;\n    } // ignore any value that isn't an array\n\n\n    if (!Array.isArray(newRates)) {\n      return;\n    } // ignore any arrays that don't only contain numbers\n\n\n    if (!newRates.every(function (rate) {\n      return typeof rate === 'number';\n    })) {\n      return;\n    }\n\n    this.cache_.playbackRates = newRates;\n    /**\n    * fires when the playback rates in a player are changed\n    *\n    * @event Player#playbackrateschange\n    * @type {EventTarget~Event}\n    */\n\n    this.trigger('playbackrateschange');\n  };\n\n  return Player;\n}(Component$1);\n/**\n * Get the {@link VideoTrackList}\n * @link https://html.spec.whatwg.org/multipage/embedded-content.html#videotracklist\n *\n * @return {VideoTrackList}\n *         the current video track list\n *\n * @method Player.prototype.videoTracks\n */\n\n/**\n * Get the {@link AudioTrackList}\n * @link https://html.spec.whatwg.org/multipage/embedded-content.html#audiotracklist\n *\n * @return {AudioTrackList}\n *         the current audio track list\n *\n * @method Player.prototype.audioTracks\n */\n\n/**\n * Get the {@link TextTrackList}\n *\n * @link http://www.w3.org/html/wg/drafts/html/master/embedded-content-0.html#dom-media-texttracks\n *\n * @return {TextTrackList}\n *         the current text track list\n *\n * @method Player.prototype.textTracks\n */\n\n/**\n * Get the remote {@link TextTrackList}\n *\n * @return {TextTrackList}\n *         The current remote text track list\n *\n * @method Player.prototype.remoteTextTracks\n */\n\n/**\n * Get the remote {@link HtmlTrackElementList} tracks.\n *\n * @return {HtmlTrackElementList}\n *         The current remote text track element list\n *\n * @method Player.prototype.remoteTextTrackEls\n */\n\n\nALL.names.forEach(function (name) {\n  var props = ALL[name];\n\n  Player.prototype[props.getterName] = function () {\n    if (this.tech_) {\n      return this.tech_[props.getterName]();\n    } // if we have not yet loadTech_, we create {video,audio,text}Tracks_\n    // these will be passed to the tech during loading\n\n\n    this[props.privateName] = this[props.privateName] || new props.ListClass();\n    return this[props.privateName];\n  };\n});\n/**\n * Get or set the `Player`'s crossorigin option. For the HTML5 player, this\n * sets the `crossOrigin` property on the `<video>` tag to control the CORS\n * behavior.\n *\n * @see [Video Element Attributes]{@link https://developer.mozilla.org/en-US/docs/Web/HTML/Element/video#attr-crossorigin}\n *\n * @param {string} [value]\n *        The value to set the `Player`'s crossorigin to. If an argument is\n *        given, must be one of `anonymous` or `use-credentials`.\n *\n * @return {string|undefined}\n *         - The current crossorigin value of the `Player` when getting.\n *         - undefined when setting\n */\n\nPlayer.prototype.crossorigin = Player.prototype.crossOrigin;\n/**\n * Global enumeration of players.\n *\n * The keys are the player IDs and the values are either the {@link Player}\n * instance or `null` for disposed players.\n *\n * @type {Object}\n */\n\nPlayer.players = {};\nvar navigator = window.navigator;\n/*\n * Player instance options, surfaced using options\n * options = Player.prototype.options_\n * Make changes in options, not here.\n *\n * @type {Object}\n * @private\n */\n\nPlayer.prototype.options_ = {\n  // Default order of fallback technology\n  techOrder: Tech.defaultTechOrder_,\n  html5: {},\n  // default inactivity timeout\n  inactivityTimeout: 2000,\n  // default playback rates\n  playbackRates: [],\n  // Add playback rate selection by adding rates\n  // 'playbackRates': [0.5, 1, 1.5, 2],\n  liveui: false,\n  // Included control sets\n  children: ['mediaLoader', 'posterImage', 'textTrackDisplay', 'loadingSpinner', 'bigPlayButton', 'liveTracker', 'controlBar', 'errorDisplay', 'textTrackSettings', 'resizeManager'],\n  language: navigator && (navigator.languages && navigator.languages[0] || navigator.userLanguage || navigator.language) || 'en',\n  // locales and their language translations\n  languages: {},\n  // Default message to show when a video cannot be played.\n  notSupportedMessage: 'No compatible source was found for this media.',\n  normalizeAutoplay: false,\n  fullscreen: {\n    options: {\n      navigationUI: 'hide'\n    }\n  },\n  breakpoints: {},\n  responsive: false\n};\n[\n/**\n * Returns whether or not the player is in the \"ended\" state.\n *\n * @return {Boolean} True if the player is in the ended state, false if not.\n * @method Player#ended\n */\n'ended',\n/**\n * Returns whether or not the player is in the \"seeking\" state.\n *\n * @return {Boolean} True if the player is in the seeking state, false if not.\n * @method Player#seeking\n */\n'seeking',\n/**\n * Returns the TimeRanges of the media that are currently available\n * for seeking to.\n *\n * @return {TimeRanges} the seekable intervals of the media timeline\n * @method Player#seekable\n */\n'seekable',\n/**\n * Returns the current state of network activity for the element, from\n * the codes in the list below.\n * - NETWORK_EMPTY (numeric value 0)\n *   The element has not yet been initialised. All attributes are in\n *   their initial states.\n * - NETWORK_IDLE (numeric value 1)\n *   The element's resource selection algorithm is active and has\n *   selected a resource, but it is not actually using the network at\n *   this time.\n * - NETWORK_LOADING (numeric value 2)\n *   The user agent is actively trying to download data.\n * - NETWORK_NO_SOURCE (numeric value 3)\n *   The element's resource selection algorithm is active, but it has\n *   not yet found a resource to use.\n *\n * @see https://html.spec.whatwg.org/multipage/embedded-content.html#network-states\n * @return {number} the current network activity state\n * @method Player#networkState\n */\n'networkState',\n/**\n * Returns a value that expresses the current state of the element\n * with respect to rendering the current playback position, from the\n * codes in the list below.\n * - HAVE_NOTHING (numeric value 0)\n *   No information regarding the media resource is available.\n * - HAVE_METADATA (numeric value 1)\n *   Enough of the resource has been obtained that the duration of the\n *   resource is available.\n * - HAVE_CURRENT_DATA (numeric value 2)\n *   Data for the immediate current playback position is available.\n * - HAVE_FUTURE_DATA (numeric value 3)\n *   Data for the immediate current playback position is available, as\n *   well as enough data for the user agent to advance the current\n *   playback position in the direction of playback.\n * - HAVE_ENOUGH_DATA (numeric value 4)\n *   The user agent estimates that enough data is available for\n *   playback to proceed uninterrupted.\n *\n * @see https://html.spec.whatwg.org/multipage/embedded-content.html#dom-media-readystate\n * @return {number} the current playback rendering state\n * @method Player#readyState\n */\n'readyState'].forEach(function (fn) {\n  Player.prototype[fn] = function () {\n    return this.techGet_(fn);\n  };\n});\nTECH_EVENTS_RETRIGGER.forEach(function (event) {\n  Player.prototype[\"handleTech\" + toTitleCase$1(event) + \"_\"] = function () {\n    return this.trigger(event);\n  };\n});\n/**\n * Fired when the player has initial duration and dimension information\n *\n * @event Player#loadedmetadata\n * @type {EventTarget~Event}\n */\n\n/**\n * Fired when the player has downloaded data at the current playback position\n *\n * @event Player#loadeddata\n * @type {EventTarget~Event}\n */\n\n/**\n * Fired when the current playback position has changed *\n * During playback this is fired every 15-250 milliseconds, depending on the\n * playback technology in use.\n *\n * @event Player#timeupdate\n * @type {EventTarget~Event}\n */\n\n/**\n * Fired when the volume changes\n *\n * @event Player#volumechange\n * @type {EventTarget~Event}\n */\n\n/**\n * Reports whether or not a player has a plugin available.\n *\n * This does not report whether or not the plugin has ever been initialized\n * on this player. For that, [usingPlugin]{@link Player#usingPlugin}.\n *\n * @method Player#hasPlugin\n * @param  {string}  name\n *         The name of a plugin.\n *\n * @return {boolean}\n *         Whether or not this player has the requested plugin available.\n */\n\n/**\n * Reports whether or not a player is using a plugin by name.\n *\n * For basic plugins, this only reports whether the plugin has _ever_ been\n * initialized on this player.\n *\n * @method Player#usingPlugin\n * @param  {string} name\n *         The name of a plugin.\n *\n * @return {boolean}\n *         Whether or not this player is using the requested plugin.\n */\n\nComponent$1.registerComponent('Player', Player);\n\n/**\n * The base plugin name.\n *\n * @private\n * @constant\n * @type {string}\n */\n\nvar BASE_PLUGIN_NAME = 'plugin';\n/**\n * The key on which a player's active plugins cache is stored.\n *\n * @private\n * @constant\n * @type     {string}\n */\n\nvar PLUGIN_CACHE_KEY = 'activePlugins_';\n/**\n * Stores registered plugins in a private space.\n *\n * @private\n * @type    {Object}\n */\n\nvar pluginStorage = {};\n/**\n * Reports whether or not a plugin has been registered.\n *\n * @private\n * @param   {string} name\n *          The name of a plugin.\n *\n * @return {boolean}\n *          Whether or not the plugin has been registered.\n */\n\nvar pluginExists = function pluginExists(name) {\n  return pluginStorage.hasOwnProperty(name);\n};\n/**\n * Get a single registered plugin by name.\n *\n * @private\n * @param   {string} name\n *          The name of a plugin.\n *\n * @return {Function|undefined}\n *          The plugin (or undefined).\n */\n\n\nvar getPlugin = function getPlugin(name) {\n  return pluginExists(name) ? pluginStorage[name] : undefined;\n};\n/**\n * Marks a plugin as \"active\" on a player.\n *\n * Also, ensures that the player has an object for tracking active plugins.\n *\n * @private\n * @param   {Player} player\n *          A Video.js player instance.\n *\n * @param   {string} name\n *          The name of a plugin.\n */\n\n\nvar markPluginAsActive = function markPluginAsActive(player, name) {\n  player[PLUGIN_CACHE_KEY] = player[PLUGIN_CACHE_KEY] || {};\n  player[PLUGIN_CACHE_KEY][name] = true;\n};\n/**\n * Triggers a pair of plugin setup events.\n *\n * @private\n * @param  {Player} player\n *         A Video.js player instance.\n *\n * @param  {Plugin~PluginEventHash} hash\n *         A plugin event hash.\n *\n * @param  {boolean} [before]\n *         If true, prefixes the event name with \"before\". In other words,\n *         use this to trigger \"beforepluginsetup\" instead of \"pluginsetup\".\n */\n\n\nvar triggerSetupEvent = function triggerSetupEvent(player, hash, before) {\n  var eventName = (before ? 'before' : '') + 'pluginsetup';\n  player.trigger(eventName, hash);\n  player.trigger(eventName + ':' + hash.name, hash);\n};\n/**\n * Takes a basic plugin function and returns a wrapper function which marks\n * on the player that the plugin has been activated.\n *\n * @private\n * @param   {string} name\n *          The name of the plugin.\n *\n * @param   {Function} plugin\n *          The basic plugin.\n *\n * @return {Function}\n *          A wrapper function for the given plugin.\n */\n\n\nvar createBasicPlugin = function createBasicPlugin(name, plugin) {\n  var basicPluginWrapper = function basicPluginWrapper() {\n    // We trigger the \"beforepluginsetup\" and \"pluginsetup\" events on the player\n    // regardless, but we want the hash to be consistent with the hash provided\n    // for advanced plugins.\n    //\n    // The only potentially counter-intuitive thing here is the `instance` in\n    // the \"pluginsetup\" event is the value returned by the `plugin` function.\n    triggerSetupEvent(this, {\n      name: name,\n      plugin: plugin,\n      instance: null\n    }, true);\n    var instance = plugin.apply(this, arguments);\n    markPluginAsActive(this, name);\n    triggerSetupEvent(this, {\n      name: name,\n      plugin: plugin,\n      instance: instance\n    });\n    return instance;\n  };\n\n  Object.keys(plugin).forEach(function (prop) {\n    basicPluginWrapper[prop] = plugin[prop];\n  });\n  return basicPluginWrapper;\n};\n/**\n * Takes a plugin sub-class and returns a factory function for generating\n * instances of it.\n *\n * This factory function will replace itself with an instance of the requested\n * sub-class of Plugin.\n *\n * @private\n * @param   {string} name\n *          The name of the plugin.\n *\n * @param   {Plugin} PluginSubClass\n *          The advanced plugin.\n *\n * @return {Function}\n */\n\n\nvar createPluginFactory = function createPluginFactory(name, PluginSubClass) {\n  // Add a `name` property to the plugin prototype so that each plugin can\n  // refer to itself by name.\n  PluginSubClass.prototype.name = name;\n  return function () {\n    triggerSetupEvent(this, {\n      name: name,\n      plugin: PluginSubClass,\n      instance: null\n    }, true);\n\n    for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {\n      args[_key] = arguments[_key];\n    }\n\n    var instance = _construct(PluginSubClass, [this].concat(args)); // The plugin is replaced by a function that returns the current instance.\n\n\n    this[name] = function () {\n      return instance;\n    };\n\n    triggerSetupEvent(this, instance.getEventHash());\n    return instance;\n  };\n};\n/**\n * Parent class for all advanced plugins.\n *\n * @mixes   module:evented~EventedMixin\n * @mixes   module:stateful~StatefulMixin\n * @fires   Player#beforepluginsetup\n * @fires   Player#beforepluginsetup:$name\n * @fires   Player#pluginsetup\n * @fires   Player#pluginsetup:$name\n * @listens Player#dispose\n * @throws  {Error}\n *          If attempting to instantiate the base {@link Plugin} class\n *          directly instead of via a sub-class.\n */\n\n\nvar Plugin = /*#__PURE__*/function () {\n  /**\n   * Creates an instance of this class.\n   *\n   * Sub-classes should call `super` to ensure plugins are properly initialized.\n   *\n   * @param {Player} player\n   *        A Video.js player instance.\n   */\n  function Plugin(player) {\n    if (this.constructor === Plugin) {\n      throw new Error('Plugin must be sub-classed; not directly instantiated.');\n    }\n\n    this.player = player;\n\n    if (!this.log) {\n      this.log = this.player.log.createLogger(this.name);\n    } // Make this object evented, but remove the added `trigger` method so we\n    // use the prototype version instead.\n\n\n    evented(this);\n    delete this.trigger;\n    stateful(this, this.constructor.defaultState);\n    markPluginAsActive(player, this.name); // Auto-bind the dispose method so we can use it as a listener and unbind\n    // it later easily.\n\n    this.dispose = this.dispose.bind(this); // If the player is disposed, dispose the plugin.\n\n    player.on('dispose', this.dispose);\n  }\n  /**\n   * Get the version of the plugin that was set on <pluginName>.VERSION\n   */\n\n\n  var _proto = Plugin.prototype;\n\n  _proto.version = function version() {\n    return this.constructor.VERSION;\n  }\n  /**\n   * Each event triggered by plugins includes a hash of additional data with\n   * conventional properties.\n   *\n   * This returns that object or mutates an existing hash.\n   *\n   * @param   {Object} [hash={}]\n   *          An object to be used as event an event hash.\n   *\n   * @return {Plugin~PluginEventHash}\n   *          An event hash object with provided properties mixed-in.\n   */\n  ;\n\n  _proto.getEventHash = function getEventHash(hash) {\n    if (hash === void 0) {\n      hash = {};\n    }\n\n    hash.name = this.name;\n    hash.plugin = this.constructor;\n    hash.instance = this;\n    return hash;\n  }\n  /**\n   * Triggers an event on the plugin object and overrides\n   * {@link module:evented~EventedMixin.trigger|EventedMixin.trigger}.\n   *\n   * @param   {string|Object} event\n   *          An event type or an object with a type property.\n   *\n   * @param   {Object} [hash={}]\n   *          Additional data hash to merge with a\n   *          {@link Plugin~PluginEventHash|PluginEventHash}.\n   *\n   * @return {boolean}\n   *          Whether or not default was prevented.\n   */\n  ;\n\n  _proto.trigger = function trigger$1(event, hash) {\n    if (hash === void 0) {\n      hash = {};\n    }\n\n    return trigger(this.eventBusEl_, event, this.getEventHash(hash));\n  }\n  /**\n   * Handles \"statechanged\" events on the plugin. No-op by default, override by\n   * subclassing.\n   *\n   * @abstract\n   * @param    {Event} e\n   *           An event object provided by a \"statechanged\" event.\n   *\n   * @param    {Object} e.changes\n   *           An object describing changes that occurred with the \"statechanged\"\n   *           event.\n   */\n  ;\n\n  _proto.handleStateChanged = function handleStateChanged(e) {}\n  /**\n   * Disposes a plugin.\n   *\n   * Subclasses can override this if they want, but for the sake of safety,\n   * it's probably best to subscribe the \"dispose\" event.\n   *\n   * @fires Plugin#dispose\n   */\n  ;\n\n  _proto.dispose = function dispose() {\n    var name = this.name,\n        player = this.player;\n    /**\n     * Signals that a advanced plugin is about to be disposed.\n     *\n     * @event Plugin#dispose\n     * @type  {EventTarget~Event}\n     */\n\n    this.trigger('dispose');\n    this.off();\n    player.off('dispose', this.dispose); // Eliminate any possible sources of leaking memory by clearing up\n    // references between the player and the plugin instance and nulling out\n    // the plugin's state and replacing methods with a function that throws.\n\n    player[PLUGIN_CACHE_KEY][name] = false;\n    this.player = this.state = null; // Finally, replace the plugin name on the player with a new factory\n    // function, so that the plugin is ready to be set up again.\n\n    player[name] = createPluginFactory(name, pluginStorage[name]);\n  }\n  /**\n   * Determines if a plugin is a basic plugin (i.e. not a sub-class of `Plugin`).\n   *\n   * @param   {string|Function} plugin\n   *          If a string, matches the name of a plugin. If a function, will be\n   *          tested directly.\n   *\n   * @return {boolean}\n   *          Whether or not a plugin is a basic plugin.\n   */\n  ;\n\n  Plugin.isBasic = function isBasic(plugin) {\n    var p = typeof plugin === 'string' ? getPlugin(plugin) : plugin;\n    return typeof p === 'function' && !Plugin.prototype.isPrototypeOf(p.prototype);\n  }\n  /**\n   * Register a Video.js plugin.\n   *\n   * @param   {string} name\n   *          The name of the plugin to be registered. Must be a string and\n   *          must not match an existing plugin or a method on the `Player`\n   *          prototype.\n   *\n   * @param   {Function} plugin\n   *          A sub-class of `Plugin` or a function for basic plugins.\n   *\n   * @return {Function}\n   *          For advanced plugins, a factory function for that plugin. For\n   *          basic plugins, a wrapper function that initializes the plugin.\n   */\n  ;\n\n  Plugin.registerPlugin = function registerPlugin(name, plugin) {\n    if (typeof name !== 'string') {\n      throw new Error(\"Illegal plugin name, \\\"\" + name + \"\\\", must be a string, was \" + typeof name + \".\");\n    }\n\n    if (pluginExists(name)) {\n      log$1.warn(\"A plugin named \\\"\" + name + \"\\\" already exists. You may want to avoid re-registering plugins!\");\n    } else if (Player.prototype.hasOwnProperty(name)) {\n      throw new Error(\"Illegal plugin name, \\\"\" + name + \"\\\", cannot share a name with an existing player method!\");\n    }\n\n    if (typeof plugin !== 'function') {\n      throw new Error(\"Illegal plugin for \\\"\" + name + \"\\\", must be a function, was \" + typeof plugin + \".\");\n    }\n\n    pluginStorage[name] = plugin; // Add a player prototype method for all sub-classed plugins (but not for\n    // the base Plugin class).\n\n    if (name !== BASE_PLUGIN_NAME) {\n      if (Plugin.isBasic(plugin)) {\n        Player.prototype[name] = createBasicPlugin(name, plugin);\n      } else {\n        Player.prototype[name] = createPluginFactory(name, plugin);\n      }\n    }\n\n    return plugin;\n  }\n  /**\n   * De-register a Video.js plugin.\n   *\n   * @param  {string} name\n   *         The name of the plugin to be de-registered. Must be a string that\n   *         matches an existing plugin.\n   *\n   * @throws {Error}\n   *         If an attempt is made to de-register the base plugin.\n   */\n  ;\n\n  Plugin.deregisterPlugin = function deregisterPlugin(name) {\n    if (name === BASE_PLUGIN_NAME) {\n      throw new Error('Cannot de-register base plugin.');\n    }\n\n    if (pluginExists(name)) {\n      delete pluginStorage[name];\n      delete Player.prototype[name];\n    }\n  }\n  /**\n   * Gets an object containing multiple Video.js plugins.\n   *\n   * @param   {Array} [names]\n   *          If provided, should be an array of plugin names. Defaults to _all_\n   *          plugin names.\n   *\n   * @return {Object|undefined}\n   *          An object containing plugin(s) associated with their name(s) or\n   *          `undefined` if no matching plugins exist).\n   */\n  ;\n\n  Plugin.getPlugins = function getPlugins(names) {\n    if (names === void 0) {\n      names = Object.keys(pluginStorage);\n    }\n\n    var result;\n    names.forEach(function (name) {\n      var plugin = getPlugin(name);\n\n      if (plugin) {\n        result = result || {};\n        result[name] = plugin;\n      }\n    });\n    return result;\n  }\n  /**\n   * Gets a plugin's version, if available\n   *\n   * @param   {string} name\n   *          The name of a plugin.\n   *\n   * @return {string}\n   *          The plugin's version or an empty string.\n   */\n  ;\n\n  Plugin.getPluginVersion = function getPluginVersion(name) {\n    var plugin = getPlugin(name);\n    return plugin && plugin.VERSION || '';\n  };\n\n  return Plugin;\n}();\n/**\n * Gets a plugin by name if it exists.\n *\n * @static\n * @method   getPlugin\n * @memberOf Plugin\n * @param    {string} name\n *           The name of a plugin.\n *\n * @returns  {Function|undefined}\n *           The plugin (or `undefined`).\n */\n\n\nPlugin.getPlugin = getPlugin;\n/**\n * The name of the base plugin class as it is registered.\n *\n * @type {string}\n */\n\nPlugin.BASE_PLUGIN_NAME = BASE_PLUGIN_NAME;\nPlugin.registerPlugin(BASE_PLUGIN_NAME, Plugin);\n/**\n * Documented in player.js\n *\n * @ignore\n */\n\nPlayer.prototype.usingPlugin = function (name) {\n  return !!this[PLUGIN_CACHE_KEY] && this[PLUGIN_CACHE_KEY][name] === true;\n};\n/**\n * Documented in player.js\n *\n * @ignore\n */\n\n\nPlayer.prototype.hasPlugin = function (name) {\n  return !!pluginExists(name);\n};\n/**\n * Signals that a plugin is about to be set up on a player.\n *\n * @event    Player#beforepluginsetup\n * @type     {Plugin~PluginEventHash}\n */\n\n/**\n * Signals that a plugin is about to be set up on a player - by name. The name\n * is the name of the plugin.\n *\n * @event    Player#beforepluginsetup:$name\n * @type     {Plugin~PluginEventHash}\n */\n\n/**\n * Signals that a plugin has just been set up on a player.\n *\n * @event    Player#pluginsetup\n * @type     {Plugin~PluginEventHash}\n */\n\n/**\n * Signals that a plugin has just been set up on a player - by name. The name\n * is the name of the plugin.\n *\n * @event    Player#pluginsetup:$name\n * @type     {Plugin~PluginEventHash}\n */\n\n/**\n * @typedef  {Object} Plugin~PluginEventHash\n *\n * @property {string} instance\n *           For basic plugins, the return value of the plugin function. For\n *           advanced plugins, the plugin instance on which the event is fired.\n *\n * @property {string} name\n *           The name of the plugin.\n *\n * @property {string} plugin\n *           For basic plugins, the plugin function. For advanced plugins, the\n *           plugin class/constructor.\n */\n\n/**\n * @file extend.js\n * @module extend\n */\n/**\n * Used to subclass an existing class by emulating ES subclassing using the\n * `extends` keyword.\n *\n * @function\n * @example\n * var MyComponent = videojs.extend(videojs.getComponent('Component'), {\n *   myCustomMethod: function() {\n *     // Do things in my method.\n *   }\n * });\n *\n * @param    {Function} superClass\n *           The class to inherit from\n *\n * @param    {Object}   [subClassMethods={}]\n *           Methods of the new class\n *\n * @return   {Function}\n *           The new class with subClassMethods that inherited superClass.\n */\n\nvar extend = function extend(superClass, subClassMethods) {\n  if (subClassMethods === void 0) {\n    subClassMethods = {};\n  }\n\n  var subClass = function subClass() {\n    superClass.apply(this, arguments);\n  };\n\n  var methods = {};\n\n  if (typeof subClassMethods === 'object') {\n    if (subClassMethods.constructor !== Object.prototype.constructor) {\n      subClass = subClassMethods.constructor;\n    }\n\n    methods = subClassMethods;\n  } else if (typeof subClassMethods === 'function') {\n    subClass = subClassMethods;\n  }\n\n  _inherits(subClass, superClass); // this is needed for backward-compatibility and node compatibility.\n\n\n  if (superClass) {\n    subClass.super_ = superClass;\n  } // Extend subObj's prototype with functions and other properties from props\n\n\n  for (var name in methods) {\n    if (methods.hasOwnProperty(name)) {\n      subClass.prototype[name] = methods[name];\n    }\n  }\n\n  return subClass;\n};\n\n/**\n * @file video.js\n * @module videojs\n */\n/**\n * Normalize an `id` value by trimming off a leading `#`\n *\n * @private\n * @param   {string} id\n *          A string, maybe with a leading `#`.\n *\n * @return {string}\n *          The string, without any leading `#`.\n */\n\nvar normalizeId = function normalizeId(id) {\n  return id.indexOf('#') === 0 ? id.slice(1) : id;\n};\n/**\n * The `videojs()` function doubles as the main function for users to create a\n * {@link Player} instance as well as the main library namespace.\n *\n * It can also be used as a getter for a pre-existing {@link Player} instance.\n * However, we _strongly_ recommend using `videojs.getPlayer()` for this\n * purpose because it avoids any potential for unintended initialization.\n *\n * Due to [limitations](https://github.com/jsdoc3/jsdoc/issues/955#issuecomment-313829149)\n * of our JSDoc template, we cannot properly document this as both a function\n * and a namespace, so its function signature is documented here.\n *\n * #### Arguments\n * ##### id\n * string|Element, **required**\n *\n * Video element or video element ID.\n *\n * ##### options\n * Object, optional\n *\n * Options object for providing settings.\n * See: [Options Guide](https://docs.videojs.com/tutorial-options.html).\n *\n * ##### ready\n * {@link Component~ReadyCallback}, optional\n *\n * A function to be called when the {@link Player} and {@link Tech} are ready.\n *\n * #### Return Value\n *\n * The `videojs()` function returns a {@link Player} instance.\n *\n * @namespace\n *\n * @borrows AudioTrack as AudioTrack\n * @borrows Component.getComponent as getComponent\n * @borrows module:computed-style~computedStyle as computedStyle\n * @borrows module:events.on as on\n * @borrows module:events.one as one\n * @borrows module:events.off as off\n * @borrows module:events.trigger as trigger\n * @borrows EventTarget as EventTarget\n * @borrows module:extend~extend as extend\n * @borrows module:fn.bind as bind\n * @borrows module:format-time.formatTime as formatTime\n * @borrows module:format-time.resetFormatTime as resetFormatTime\n * @borrows module:format-time.setFormatTime as setFormatTime\n * @borrows module:merge-options.mergeOptions as mergeOptions\n * @borrows module:middleware.use as use\n * @borrows Player.players as players\n * @borrows Plugin.registerPlugin as registerPlugin\n * @borrows Plugin.deregisterPlugin as deregisterPlugin\n * @borrows Plugin.getPlugins as getPlugins\n * @borrows Plugin.getPlugin as getPlugin\n * @borrows Plugin.getPluginVersion as getPluginVersion\n * @borrows Tech.getTech as getTech\n * @borrows Tech.registerTech as registerTech\n * @borrows TextTrack as TextTrack\n * @borrows module:time-ranges.createTimeRanges as createTimeRange\n * @borrows module:time-ranges.createTimeRanges as createTimeRanges\n * @borrows module:url.isCrossOrigin as isCrossOrigin\n * @borrows module:url.parseUrl as parseUrl\n * @borrows VideoTrack as VideoTrack\n *\n * @param  {string|Element} id\n *         Video element or video element ID.\n *\n * @param  {Object} [options]\n *         Options object for providing settings.\n *         See: [Options Guide](https://docs.videojs.com/tutorial-options.html).\n *\n * @param  {Component~ReadyCallback} [ready]\n *         A function to be called when the {@link Player} and {@link Tech} are\n *         ready.\n *\n * @return {Player}\n *         The `videojs()` function returns a {@link Player|Player} instance.\n */\n\n\nfunction videojs(id, options, ready) {\n  var player = videojs.getPlayer(id);\n\n  if (player) {\n    if (options) {\n      log$1.warn(\"Player \\\"\" + id + \"\\\" is already initialised. Options will not be applied.\");\n    }\n\n    if (ready) {\n      player.ready(ready);\n    }\n\n    return player;\n  }\n\n  var el = typeof id === 'string' ? $('#' + normalizeId(id)) : id;\n\n  if (!isEl(el)) {\n    throw new TypeError('The element or ID supplied is not valid. (videojs)');\n  } // document.body.contains(el) will only check if el is contained within that one document.\n  // This causes problems for elements in iframes.\n  // Instead, use the element's ownerDocument instead of the global document.\n  // This will make sure that the element is indeed in the dom of that document.\n  // Additionally, check that the document in question has a default view.\n  // If the document is no longer attached to the dom, the defaultView of the document will be null.\n\n\n  if (!el.ownerDocument.defaultView || !el.ownerDocument.body.contains(el)) {\n    log$1.warn('The element supplied is not included in the DOM');\n  }\n\n  options = options || {};\n  hooks('beforesetup').forEach(function (hookFunction) {\n    var opts = hookFunction(el, mergeOptions$3(options));\n\n    if (!isObject(opts) || Array.isArray(opts)) {\n      log$1.error('please return an object in beforesetup hooks');\n      return;\n    }\n\n    options = mergeOptions$3(options, opts);\n  }); // We get the current \"Player\" component here in case an integration has\n  // replaced it with a custom player.\n\n  var PlayerComponent = Component$1.getComponent('Player');\n  player = new PlayerComponent(el, options, ready);\n  hooks('setup').forEach(function (hookFunction) {\n    return hookFunction(player);\n  });\n  return player;\n}\n\nvideojs.hooks_ = hooks_;\nvideojs.hooks = hooks;\nvideojs.hook = hook;\nvideojs.hookOnce = hookOnce;\nvideojs.removeHook = removeHook; // Add default styles\n\nif (window.VIDEOJS_NO_DYNAMIC_STYLE !== true && isReal()) {\n  var style = $('.vjs-styles-defaults');\n\n  if (!style) {\n    style = createStyleElement('vjs-styles-defaults');\n    var head = $('head');\n\n    if (head) {\n      head.insertBefore(style, head.firstChild);\n    }\n\n    setTextContent(style, \"\\n      .video-js {\\n        width: 300px;\\n        height: 150px;\\n      }\\n\\n      .vjs-fluid {\\n        padding-top: 56.25%\\n      }\\n    \");\n  }\n} // Run Auto-load players\n// You have to wait at least once in case this script is loaded after your\n// video in the DOM (weird behavior only with minified version)\n\n\nautoSetupTimeout(1, videojs);\n/**\n * Current Video.js version. Follows [semantic versioning](https://semver.org/).\n *\n * @type {string}\n */\n\nvideojs.VERSION = version$5;\n/**\n * The global options object. These are the settings that take effect\n * if no overrides are specified when the player is created.\n *\n * @type {Object}\n */\n\nvideojs.options = Player.prototype.options_;\n/**\n * Get an object with the currently created players, keyed by player ID\n *\n * @return {Object}\n *         The created players\n */\n\nvideojs.getPlayers = function () {\n  return Player.players;\n};\n/**\n * Get a single player based on an ID or DOM element.\n *\n * This is useful if you want to check if an element or ID has an associated\n * Video.js player, but not create one if it doesn't.\n *\n * @param   {string|Element} id\n *          An HTML element - `<video>`, `<audio>`, or `<video-js>` -\n *          or a string matching the `id` of such an element.\n *\n * @return {Player|undefined}\n *          A player instance or `undefined` if there is no player instance\n *          matching the argument.\n */\n\n\nvideojs.getPlayer = function (id) {\n  var players = Player.players;\n  var tag;\n\n  if (typeof id === 'string') {\n    var nId = normalizeId(id);\n    var player = players[nId];\n\n    if (player) {\n      return player;\n    }\n\n    tag = $('#' + nId);\n  } else {\n    tag = id;\n  }\n\n  if (isEl(tag)) {\n    var _tag = tag,\n        _player = _tag.player,\n        playerId = _tag.playerId; // Element may have a `player` property referring to an already created\n    // player instance. If so, return that.\n\n    if (_player || players[playerId]) {\n      return _player || players[playerId];\n    }\n  }\n};\n/**\n * Returns an array of all current players.\n *\n * @return {Array}\n *         An array of all players. The array will be in the order that\n *         `Object.keys` provides, which could potentially vary between\n *         JavaScript engines.\n *\n */\n\n\nvideojs.getAllPlayers = function () {\n  return (// Disposed players leave a key with a `null` value, so we need to make sure\n    // we filter those out.\n    Object.keys(Player.players).map(function (k) {\n      return Player.players[k];\n    }).filter(Boolean)\n  );\n};\n\nvideojs.players = Player.players;\nvideojs.getComponent = Component$1.getComponent;\n/**\n * Register a component so it can referred to by name. Used when adding to other\n * components, either through addChild `component.addChild('myComponent')` or through\n * default children options  `{ children: ['myComponent'] }`.\n *\n * > NOTE: You could also just initialize the component before adding.\n * `component.addChild(new MyComponent());`\n *\n * @param {string} name\n *        The class name of the component\n *\n * @param {Component} comp\n *        The component class\n *\n * @return {Component}\n *         The newly registered component\n */\n\nvideojs.registerComponent = function (name, comp) {\n  if (Tech.isTech(comp)) {\n    log$1.warn(\"The \" + name + \" tech was registered as a component. It should instead be registered using videojs.registerTech(name, tech)\");\n  }\n\n  Component$1.registerComponent.call(Component$1, name, comp);\n};\n\nvideojs.getTech = Tech.getTech;\nvideojs.registerTech = Tech.registerTech;\nvideojs.use = use;\n/**\n * An object that can be returned by a middleware to signify\n * that the middleware is being terminated.\n *\n * @type {object}\n * @property {object} middleware.TERMINATOR\n */\n\nObject.defineProperty(videojs, 'middleware', {\n  value: {},\n  writeable: false,\n  enumerable: true\n});\nObject.defineProperty(videojs.middleware, 'TERMINATOR', {\n  value: TERMINATOR,\n  writeable: false,\n  enumerable: true\n});\n/**\n * A reference to the {@link module:browser|browser utility module} as an object.\n *\n * @type {Object}\n * @see  {@link module:browser|browser}\n */\n\nvideojs.browser = browser;\n/**\n * Use {@link module:browser.TOUCH_ENABLED|browser.TOUCH_ENABLED} instead; only\n * included for backward-compatibility with 4.x.\n *\n * @deprecated Since version 5.0, use {@link module:browser.TOUCH_ENABLED|browser.TOUCH_ENABLED instead.\n * @type {boolean}\n */\n\nvideojs.TOUCH_ENABLED = TOUCH_ENABLED;\nvideojs.extend = extend;\nvideojs.mergeOptions = mergeOptions$3;\nvideojs.bind = bind;\nvideojs.registerPlugin = Plugin.registerPlugin;\nvideojs.deregisterPlugin = Plugin.deregisterPlugin;\n/**\n * Deprecated method to register a plugin with Video.js\n *\n * @deprecated videojs.plugin() is deprecated; use videojs.registerPlugin() instead\n *\n * @param {string} name\n *        The plugin name\n *\n * @param {Plugin|Function} plugin\n *         The plugin sub-class or function\n */\n\nvideojs.plugin = function (name, plugin) {\n  log$1.warn('videojs.plugin() is deprecated; use videojs.registerPlugin() instead');\n  return Plugin.registerPlugin(name, plugin);\n};\n\nvideojs.getPlugins = Plugin.getPlugins;\nvideojs.getPlugin = Plugin.getPlugin;\nvideojs.getPluginVersion = Plugin.getPluginVersion;\n/**\n * Adding languages so that they're available to all players.\n * Example: `videojs.addLanguage('es', { 'Hello': 'Hola' });`\n *\n * @param {string} code\n *        The language code or dictionary property\n *\n * @param {Object} data\n *        The data values to be translated\n *\n * @return {Object}\n *         The resulting language dictionary object\n */\n\nvideojs.addLanguage = function (code, data) {\n  var _mergeOptions;\n\n  code = ('' + code).toLowerCase();\n  videojs.options.languages = mergeOptions$3(videojs.options.languages, (_mergeOptions = {}, _mergeOptions[code] = data, _mergeOptions));\n  return videojs.options.languages[code];\n};\n/**\n * A reference to the {@link module:log|log utility module} as an object.\n *\n * @type {Function}\n * @see  {@link module:log|log}\n */\n\n\nvideojs.log = log$1;\nvideojs.createLogger = createLogger;\nvideojs.createTimeRange = videojs.createTimeRanges = createTimeRanges;\nvideojs.formatTime = formatTime;\nvideojs.setFormatTime = setFormatTime;\nvideojs.resetFormatTime = resetFormatTime;\nvideojs.parseUrl = parseUrl;\nvideojs.isCrossOrigin = isCrossOrigin;\nvideojs.EventTarget = EventTarget$2;\nvideojs.on = on;\nvideojs.one = one;\nvideojs.off = off;\nvideojs.trigger = trigger;\n/**\n * A cross-browser XMLHttpRequest wrapper.\n *\n * @function\n * @param    {Object} options\n *           Settings for the request.\n *\n * @return   {XMLHttpRequest|XDomainRequest}\n *           The request object.\n *\n * @see      https://github.com/Raynos/xhr\n */\n\nvideojs.xhr = XHR;\nvideojs.TextTrack = TextTrack;\nvideojs.AudioTrack = AudioTrack;\nvideojs.VideoTrack = VideoTrack;\n['isEl', 'isTextNode', 'createEl', 'hasClass', 'addClass', 'removeClass', 'toggleClass', 'setAttributes', 'getAttributes', 'emptyEl', 'appendContent', 'insertContent'].forEach(function (k) {\n  videojs[k] = function () {\n    log$1.warn(\"videojs.\" + k + \"() is deprecated; use videojs.dom.\" + k + \"() instead\");\n    return Dom[k].apply(null, arguments);\n  };\n});\nvideojs.computedStyle = computedStyle;\n/**\n * A reference to the {@link module:dom|DOM utility module} as an object.\n *\n * @type {Object}\n * @see  {@link module:dom|dom}\n */\n\nvideojs.dom = Dom;\n/**\n * A reference to the {@link module:url|URL utility module} as an object.\n *\n * @type {Object}\n * @see  {@link module:url|url}\n */\n\nvideojs.url = Url;\nvideojs.defineLazyProperty = defineLazyProperty; // Adding less ambiguous text for fullscreen button.\n// In a major update this could become the default text and key.\n\nvideojs.addLanguage('en', {\n  'Non-Fullscreen': 'Exit Fullscreen'\n});\n\n/*! @name @videojs/http-streaming @version 2.10.2 @license Apache-2.0 */\n/**\n * @file resolve-url.js - Handling how URLs are resolved and manipulated\n */\n\nvar resolveUrl = _resolveUrl;\n/**\n * Checks whether xhr request was redirected and returns correct url depending\n * on `handleManifestRedirects` option\n *\n * @api private\n *\n * @param  {string} url - an url being requested\n * @param  {XMLHttpRequest} req - xhr request result\n *\n * @return {string}\n */\n\nvar resolveManifestRedirect = function resolveManifestRedirect(handleManifestRedirect, url, req) {\n  // To understand how the responseURL below is set and generated:\n  // - https://fetch.spec.whatwg.org/#concept-response-url\n  // - https://fetch.spec.whatwg.org/#atomic-http-redirect-handling\n  if (handleManifestRedirect && req && req.responseURL && url !== req.responseURL) {\n    return req.responseURL;\n  }\n\n  return url;\n};\n\nvar logger = function logger(source) {\n  if (videojs.log.debug) {\n    return videojs.log.debug.bind(videojs, 'VHS:', source + \" >\");\n  }\n\n  return function () {};\n};\n/**\n * ranges\n *\n * Utilities for working with TimeRanges.\n *\n */\n\n\nvar TIME_FUDGE_FACTOR = 1 / 30; // Comparisons between time values such as current time and the end of the buffered range\n// can be misleading because of precision differences or when the current media has poorly\n// aligned audio and video, which can cause values to be slightly off from what you would\n// expect. This value is what we consider to be safe to use in such comparisons to account\n// for these scenarios.\n\nvar SAFE_TIME_DELTA = TIME_FUDGE_FACTOR * 3;\n\nvar filterRanges = function filterRanges(timeRanges, predicate) {\n  var results = [];\n  var i;\n\n  if (timeRanges && timeRanges.length) {\n    // Search for ranges that match the predicate\n    for (i = 0; i < timeRanges.length; i++) {\n      if (predicate(timeRanges.start(i), timeRanges.end(i))) {\n        results.push([timeRanges.start(i), timeRanges.end(i)]);\n      }\n    }\n  }\n\n  return videojs.createTimeRanges(results);\n};\n/**\n * Attempts to find the buffered TimeRange that contains the specified\n * time.\n *\n * @param {TimeRanges} buffered - the TimeRanges object to query\n * @param {number} time  - the time to filter on.\n * @return {TimeRanges} a new TimeRanges object\n */\n\n\nvar findRange = function findRange(buffered, time) {\n  return filterRanges(buffered, function (start, end) {\n    return start - SAFE_TIME_DELTA <= time && end + SAFE_TIME_DELTA >= time;\n  });\n};\n/**\n * Returns the TimeRanges that begin later than the specified time.\n *\n * @param {TimeRanges} timeRanges - the TimeRanges object to query\n * @param {number} time - the time to filter on.\n * @return {TimeRanges} a new TimeRanges object.\n */\n\n\nvar findNextRange = function findNextRange(timeRanges, time) {\n  return filterRanges(timeRanges, function (start) {\n    return start - TIME_FUDGE_FACTOR >= time;\n  });\n};\n/**\n * Returns gaps within a list of TimeRanges\n *\n * @param {TimeRanges} buffered - the TimeRanges object\n * @return {TimeRanges} a TimeRanges object of gaps\n */\n\n\nvar findGaps = function findGaps(buffered) {\n  if (buffered.length < 2) {\n    return videojs.createTimeRanges();\n  }\n\n  var ranges = [];\n\n  for (var i = 1; i < buffered.length; i++) {\n    var start = buffered.end(i - 1);\n    var end = buffered.start(i);\n    ranges.push([start, end]);\n  }\n\n  return videojs.createTimeRanges(ranges);\n};\n/**\n * Calculate the intersection of two TimeRanges\n *\n * @param {TimeRanges} bufferA\n * @param {TimeRanges} bufferB\n * @return {TimeRanges} The interesection of `bufferA` with `bufferB`\n */\n\n\nvar bufferIntersection = function bufferIntersection(bufferA, bufferB) {\n  var start = null;\n  var end = null;\n  var arity = 0;\n  var extents = [];\n  var ranges = [];\n\n  if (!bufferA || !bufferA.length || !bufferB || !bufferB.length) {\n    return videojs.createTimeRange();\n  } // Handle the case where we have both buffers and create an\n  // intersection of the two\n\n\n  var count = bufferA.length; // A) Gather up all start and end times\n\n  while (count--) {\n    extents.push({\n      time: bufferA.start(count),\n      type: 'start'\n    });\n    extents.push({\n      time: bufferA.end(count),\n      type: 'end'\n    });\n  }\n\n  count = bufferB.length;\n\n  while (count--) {\n    extents.push({\n      time: bufferB.start(count),\n      type: 'start'\n    });\n    extents.push({\n      time: bufferB.end(count),\n      type: 'end'\n    });\n  } // B) Sort them by time\n\n\n  extents.sort(function (a, b) {\n    return a.time - b.time;\n  }); // C) Go along one by one incrementing arity for start and decrementing\n  //    arity for ends\n\n  for (count = 0; count < extents.length; count++) {\n    if (extents[count].type === 'start') {\n      arity++; // D) If arity is ever incremented to 2 we are entering an\n      //    overlapping range\n\n      if (arity === 2) {\n        start = extents[count].time;\n      }\n    } else if (extents[count].type === 'end') {\n      arity--; // E) If arity is ever decremented to 1 we leaving an\n      //    overlapping range\n\n      if (arity === 1) {\n        end = extents[count].time;\n      }\n    } // F) Record overlapping ranges\n\n\n    if (start !== null && end !== null) {\n      ranges.push([start, end]);\n      start = null;\n      end = null;\n    }\n  }\n\n  return videojs.createTimeRanges(ranges);\n};\n/**\n * Gets a human readable string for a TimeRange\n *\n * @param {TimeRange} range\n * @return {string} a human readable string\n */\n\n\nvar printableRange = function printableRange(range) {\n  var strArr = [];\n\n  if (!range || !range.length) {\n    return '';\n  }\n\n  for (var i = 0; i < range.length; i++) {\n    strArr.push(range.start(i) + ' => ' + range.end(i));\n  }\n\n  return strArr.join(', ');\n};\n/**\n * Calculates the amount of time left in seconds until the player hits the end of the\n * buffer and causes a rebuffer\n *\n * @param {TimeRange} buffered\n *        The state of the buffer\n * @param {Numnber} currentTime\n *        The current time of the player\n * @param {number} playbackRate\n *        The current playback rate of the player. Defaults to 1.\n * @return {number}\n *         Time until the player has to start rebuffering in seconds.\n * @function timeUntilRebuffer\n */\n\n\nvar timeUntilRebuffer = function timeUntilRebuffer(buffered, currentTime, playbackRate) {\n  if (playbackRate === void 0) {\n    playbackRate = 1;\n  }\n\n  var bufferedEnd = buffered.length ? buffered.end(buffered.length - 1) : 0;\n  return (bufferedEnd - currentTime) / playbackRate;\n};\n/**\n * Converts a TimeRanges object into an array representation\n *\n * @param {TimeRanges} timeRanges\n * @return {Array}\n */\n\n\nvar timeRangesToArray = function timeRangesToArray(timeRanges) {\n  var timeRangesList = [];\n\n  for (var i = 0; i < timeRanges.length; i++) {\n    timeRangesList.push({\n      start: timeRanges.start(i),\n      end: timeRanges.end(i)\n    });\n  }\n\n  return timeRangesList;\n};\n/**\n * Determines if two time range objects are different.\n *\n * @param {TimeRange} a\n *        the first time range object to check\n *\n * @param {TimeRange} b\n *        the second time range object to check\n *\n * @return {Boolean}\n *         Whether the time range objects differ\n */\n\n\nvar isRangeDifferent = function isRangeDifferent(a, b) {\n  // same object\n  if (a === b) {\n    return false;\n  } // one or the other is undefined\n\n\n  if (!a && b || !b && a) {\n    return true;\n  } // length is different\n\n\n  if (a.length !== b.length) {\n    return true;\n  } // see if any start/end pair is different\n\n\n  for (var i = 0; i < a.length; i++) {\n    if (a.start(i) !== b.start(i) || a.end(i) !== b.end(i)) {\n      return true;\n    }\n  } // if the length and every pair is the same\n  // this is the same time range\n\n\n  return false;\n};\n\nvar lastBufferedEnd = function lastBufferedEnd(a) {\n  if (!a || !a.length || !a.end) {\n    return;\n  }\n\n  return a.end(a.length - 1);\n};\n/**\n * @file playlist.js\n *\n * Playlist related utilities.\n */\n\n\nvar createTimeRange = videojs.createTimeRange;\n/**\n * A function to get a combined list of parts and segments with durations\n * and indexes.\n *\n * @param {Playlist} playlist the playlist to get the list for.\n *\n * @return {Array} The part/segment list.\n */\n\nvar getPartsAndSegments = function getPartsAndSegments(playlist) {\n  return (playlist.segments || []).reduce(function (acc, segment, si) {\n    if (segment.parts) {\n      segment.parts.forEach(function (part, pi) {\n        acc.push({\n          duration: part.duration,\n          segmentIndex: si,\n          partIndex: pi,\n          part: part,\n          segment: segment\n        });\n      });\n    } else {\n      acc.push({\n        duration: segment.duration,\n        segmentIndex: si,\n        partIndex: null,\n        segment: segment,\n        part: null\n      });\n    }\n\n    return acc;\n  }, []);\n};\n\nvar getLastParts = function getLastParts(media) {\n  var lastSegment = media.segments && media.segments.length && media.segments[media.segments.length - 1];\n  return lastSegment && lastSegment.parts || [];\n};\n\nvar getKnownPartCount = function getKnownPartCount(_ref) {\n  var preloadSegment = _ref.preloadSegment;\n\n  if (!preloadSegment) {\n    return;\n  }\n\n  var parts = preloadSegment.parts,\n      preloadHints = preloadSegment.preloadHints;\n  var partCount = (preloadHints || []).reduce(function (count, hint) {\n    return count + (hint.type === 'PART' ? 1 : 0);\n  }, 0);\n  partCount += parts && parts.length ? parts.length : 0;\n  return partCount;\n};\n/**\n * Get the number of seconds to delay from the end of a\n * live playlist.\n *\n * @param {Playlist} master the master playlist\n * @param {Playlist} media the media playlist\n * @return {number} the hold back in seconds.\n */\n\n\nvar liveEdgeDelay = function liveEdgeDelay(master, media) {\n  if (media.endList) {\n    return 0;\n  } // dash suggestedPresentationDelay trumps everything\n\n\n  if (master && master.suggestedPresentationDelay) {\n    return master.suggestedPresentationDelay;\n  }\n\n  var hasParts = getLastParts(media).length > 0; // look for \"part\" delays from ll-hls first\n\n  if (hasParts && media.serverControl && media.serverControl.partHoldBack) {\n    return media.serverControl.partHoldBack;\n  } else if (hasParts && media.partTargetDuration) {\n    return media.partTargetDuration * 3; // finally look for full segment delays\n  } else if (media.serverControl && media.serverControl.holdBack) {\n    return media.serverControl.holdBack;\n  } else if (media.targetDuration) {\n    return media.targetDuration * 3;\n  }\n\n  return 0;\n};\n/**\n * walk backward until we find a duration we can use\n * or return a failure\n *\n * @param {Playlist} playlist the playlist to walk through\n * @param {Number} endSequence the mediaSequence to stop walking on\n */\n\n\nvar backwardDuration = function backwardDuration(playlist, endSequence) {\n  var result = 0;\n  var i = endSequence - playlist.mediaSequence; // if a start time is available for segment immediately following\n  // the interval, use it\n\n  var segment = playlist.segments[i]; // Walk backward until we find the latest segment with timeline\n  // information that is earlier than endSequence\n\n  if (segment) {\n    if (typeof segment.start !== 'undefined') {\n      return {\n        result: segment.start,\n        precise: true\n      };\n    }\n\n    if (typeof segment.end !== 'undefined') {\n      return {\n        result: segment.end - segment.duration,\n        precise: true\n      };\n    }\n  }\n\n  while (i--) {\n    segment = playlist.segments[i];\n\n    if (typeof segment.end !== 'undefined') {\n      return {\n        result: result + segment.end,\n        precise: true\n      };\n    }\n\n    result += segment.duration;\n\n    if (typeof segment.start !== 'undefined') {\n      return {\n        result: result + segment.start,\n        precise: true\n      };\n    }\n  }\n\n  return {\n    result: result,\n    precise: false\n  };\n};\n/**\n * walk forward until we find a duration we can use\n * or return a failure\n *\n * @param {Playlist} playlist the playlist to walk through\n * @param {number} endSequence the mediaSequence to stop walking on\n */\n\n\nvar forwardDuration = function forwardDuration(playlist, endSequence) {\n  var result = 0;\n  var segment;\n  var i = endSequence - playlist.mediaSequence; // Walk forward until we find the earliest segment with timeline\n  // information\n\n  for (; i < playlist.segments.length; i++) {\n    segment = playlist.segments[i];\n\n    if (typeof segment.start !== 'undefined') {\n      return {\n        result: segment.start - result,\n        precise: true\n      };\n    }\n\n    result += segment.duration;\n\n    if (typeof segment.end !== 'undefined') {\n      return {\n        result: segment.end - result,\n        precise: true\n      };\n    }\n  } // indicate we didn't find a useful duration estimate\n\n\n  return {\n    result: -1,\n    precise: false\n  };\n};\n/**\n  * Calculate the media duration from the segments associated with a\n  * playlist. The duration of a subinterval of the available segments\n  * may be calculated by specifying an end index.\n  *\n  * @param {Object} playlist a media playlist object\n  * @param {number=} endSequence an exclusive upper boundary\n  * for the playlist.  Defaults to playlist length.\n  * @param {number} expired the amount of time that has dropped\n  * off the front of the playlist in a live scenario\n  * @return {number} the duration between the first available segment\n  * and end index.\n  */\n\n\nvar intervalDuration = function intervalDuration(playlist, endSequence, expired) {\n  if (typeof endSequence === 'undefined') {\n    endSequence = playlist.mediaSequence + playlist.segments.length;\n  }\n\n  if (endSequence < playlist.mediaSequence) {\n    return 0;\n  } // do a backward walk to estimate the duration\n\n\n  var backward = backwardDuration(playlist, endSequence);\n\n  if (backward.precise) {\n    // if we were able to base our duration estimate on timing\n    // information provided directly from the Media Source, return\n    // it\n    return backward.result;\n  } // walk forward to see if a precise duration estimate can be made\n  // that way\n\n\n  var forward = forwardDuration(playlist, endSequence);\n\n  if (forward.precise) {\n    // we found a segment that has been buffered and so it's\n    // position is known precisely\n    return forward.result;\n  } // return the less-precise, playlist-based duration estimate\n\n\n  return backward.result + expired;\n};\n/**\n  * Calculates the duration of a playlist. If a start and end index\n  * are specified, the duration will be for the subset of the media\n  * timeline between those two indices. The total duration for live\n  * playlists is always Infinity.\n  *\n  * @param {Object} playlist a media playlist object\n  * @param {number=} endSequence an exclusive upper\n  * boundary for the playlist. Defaults to the playlist media\n  * sequence number plus its length.\n  * @param {number=} expired the amount of time that has\n  * dropped off the front of the playlist in a live scenario\n  * @return {number} the duration between the start index and end\n  * index.\n  */\n\n\nvar duration = function duration(playlist, endSequence, expired) {\n  if (!playlist) {\n    return 0;\n  }\n\n  if (typeof expired !== 'number') {\n    expired = 0;\n  } // if a slice of the total duration is not requested, use\n  // playlist-level duration indicators when they're present\n\n\n  if (typeof endSequence === 'undefined') {\n    // if present, use the duration specified in the playlist\n    if (playlist.totalDuration) {\n      return playlist.totalDuration;\n    } // duration should be Infinity for live playlists\n\n\n    if (!playlist.endList) {\n      return window.Infinity;\n    }\n  } // calculate the total duration based on the segment durations\n\n\n  return intervalDuration(playlist, endSequence, expired);\n};\n/**\n  * Calculate the time between two indexes in the current playlist\n  * neight the start- nor the end-index need to be within the current\n  * playlist in which case, the targetDuration of the playlist is used\n  * to approximate the durations of the segments\n  *\n  * @param {Array} options.durationList list to iterate over for durations.\n  * @param {number} options.defaultDuration duration to use for elements before or after the durationList\n  * @param {number} options.startIndex partsAndSegments index to start\n  * @param {number} options.endIndex partsAndSegments index to end.\n  * @return {number} the number of seconds between startIndex and endIndex\n  */\n\n\nvar sumDurations = function sumDurations(_ref2) {\n  var defaultDuration = _ref2.defaultDuration,\n      durationList = _ref2.durationList,\n      startIndex = _ref2.startIndex,\n      endIndex = _ref2.endIndex;\n  var durations = 0;\n\n  if (startIndex > endIndex) {\n    var _ref3 = [endIndex, startIndex];\n    startIndex = _ref3[0];\n    endIndex = _ref3[1];\n  }\n\n  if (startIndex < 0) {\n    for (var i = startIndex; i < Math.min(0, endIndex); i++) {\n      durations += defaultDuration;\n    }\n\n    startIndex = 0;\n  }\n\n  for (var _i = startIndex; _i < endIndex; _i++) {\n    durations += durationList[_i].duration;\n  }\n\n  return durations;\n};\n/**\n * Calculates the playlist end time\n *\n * @param {Object} playlist a media playlist object\n * @param {number=} expired the amount of time that has\n *                  dropped off the front of the playlist in a live scenario\n * @param {boolean|false} useSafeLiveEnd a boolean value indicating whether or not the\n *                        playlist end calculation should consider the safe live end\n *                        (truncate the playlist end by three segments). This is normally\n *                        used for calculating the end of the playlist's seekable range.\n *                        This takes into account the value of liveEdgePadding.\n *                        Setting liveEdgePadding to 0 is equivalent to setting this to false.\n * @param {number} liveEdgePadding a number indicating how far from the end of the playlist we should be in seconds.\n *                 If this is provided, it is used in the safe live end calculation.\n *                 Setting useSafeLiveEnd=false or liveEdgePadding=0 are equivalent.\n *                 Corresponds to suggestedPresentationDelay in DASH manifests.\n * @return {number} the end time of playlist\n * @function playlistEnd\n */\n\n\nvar playlistEnd = function playlistEnd(playlist, expired, useSafeLiveEnd, liveEdgePadding) {\n  if (!playlist || !playlist.segments) {\n    return null;\n  }\n\n  if (playlist.endList) {\n    return duration(playlist);\n  }\n\n  if (expired === null) {\n    return null;\n  }\n\n  expired = expired || 0;\n  var lastSegmentTime = intervalDuration(playlist, playlist.mediaSequence + playlist.segments.length, expired);\n\n  if (useSafeLiveEnd) {\n    liveEdgePadding = typeof liveEdgePadding === 'number' ? liveEdgePadding : liveEdgeDelay(null, playlist);\n    lastSegmentTime -= liveEdgePadding;\n  } // don't return a time less than zero\n\n\n  return Math.max(0, lastSegmentTime);\n};\n/**\n  * Calculates the interval of time that is currently seekable in a\n  * playlist. The returned time ranges are relative to the earliest\n  * moment in the specified playlist that is still available. A full\n  * seekable implementation for live streams would need to offset\n  * these values by the duration of content that has expired from the\n  * stream.\n  *\n  * @param {Object} playlist a media playlist object\n  * dropped off the front of the playlist in a live scenario\n  * @param {number=} expired the amount of time that has\n  * dropped off the front of the playlist in a live scenario\n  * @param {number} liveEdgePadding how far from the end of the playlist we should be in seconds.\n  *        Corresponds to suggestedPresentationDelay in DASH manifests.\n  * @return {TimeRanges} the periods of time that are valid targets\n  * for seeking\n  */\n\n\nvar seekable = function seekable(playlist, expired, liveEdgePadding) {\n  var useSafeLiveEnd = true;\n  var seekableStart = expired || 0;\n  var seekableEnd = playlistEnd(playlist, expired, useSafeLiveEnd, liveEdgePadding);\n\n  if (seekableEnd === null) {\n    return createTimeRange();\n  }\n\n  return createTimeRange(seekableStart, seekableEnd);\n};\n/**\n * Determine the index and estimated starting time of the segment that\n * contains a specified playback position in a media playlist.\n *\n * @param {Object} options.playlist the media playlist to query\n * @param {number} options.currentTime The number of seconds since the earliest\n * possible position to determine the containing segment for\n * @param {number} options.startTime the time when the segment/part starts\n * @param {number} options.startingSegmentIndex the segment index to start looking at.\n * @param {number?} [options.startingPartIndex] the part index to look at within the segment.\n *\n * @return {Object} an object with partIndex, segmentIndex, and startTime.\n */\n\n\nvar getMediaInfoForTime = function getMediaInfoForTime(_ref4) {\n  var playlist = _ref4.playlist,\n      currentTime = _ref4.currentTime,\n      startingSegmentIndex = _ref4.startingSegmentIndex,\n      startingPartIndex = _ref4.startingPartIndex,\n      startTime = _ref4.startTime,\n      experimentalExactManifestTimings = _ref4.experimentalExactManifestTimings;\n  var time = currentTime - startTime;\n  var partsAndSegments = getPartsAndSegments(playlist);\n  var startIndex = 0;\n\n  for (var i = 0; i < partsAndSegments.length; i++) {\n    var partAndSegment = partsAndSegments[i];\n\n    if (startingSegmentIndex !== partAndSegment.segmentIndex) {\n      continue;\n    } // skip this if part index does not match.\n\n\n    if (typeof startingPartIndex === 'number' && typeof partAndSegment.partIndex === 'number' && startingPartIndex !== partAndSegment.partIndex) {\n      continue;\n    }\n\n    startIndex = i;\n    break;\n  }\n\n  if (time < 0) {\n    // Walk backward from startIndex in the playlist, adding durations\n    // until we find a segment that contains `time` and return it\n    if (startIndex > 0) {\n      for (var _i2 = startIndex - 1; _i2 >= 0; _i2--) {\n        var _partAndSegment = partsAndSegments[_i2];\n        time += _partAndSegment.duration;\n\n        if (experimentalExactManifestTimings) {\n          if (time < 0) {\n            continue;\n          }\n        } else if (time + TIME_FUDGE_FACTOR <= 0) {\n          continue;\n        }\n\n        return {\n          partIndex: _partAndSegment.partIndex,\n          segmentIndex: _partAndSegment.segmentIndex,\n          startTime: startTime - sumDurations({\n            defaultDuration: playlist.targetDuration,\n            durationList: partsAndSegments,\n            startIndex: startIndex,\n            endIndex: _i2\n          })\n        };\n      }\n    } // We were unable to find a good segment within the playlist\n    // so select the first segment\n\n\n    return {\n      partIndex: partsAndSegments[0] && partsAndSegments[0].partIndex || null,\n      segmentIndex: partsAndSegments[0] && partsAndSegments[0].segmentIndex || 0,\n      startTime: currentTime\n    };\n  } // When startIndex is negative, we first walk forward to first segment\n  // adding target durations. If we \"run out of time\" before getting to\n  // the first segment, return the first segment\n\n\n  if (startIndex < 0) {\n    for (var _i3 = startIndex; _i3 < 0; _i3++) {\n      time -= playlist.targetDuration;\n\n      if (time < 0) {\n        return {\n          partIndex: partsAndSegments[0] && partsAndSegments[0].partIndex || null,\n          segmentIndex: partsAndSegments[0] && partsAndSegments[0].segmentIndex || 0,\n          startTime: currentTime\n        };\n      }\n    }\n\n    startIndex = 0;\n  } // Walk forward from startIndex in the playlist, subtracting durations\n  // until we find a segment that contains `time` and return it\n\n\n  for (var _i4 = startIndex; _i4 < partsAndSegments.length; _i4++) {\n    var _partAndSegment2 = partsAndSegments[_i4];\n    time -= _partAndSegment2.duration;\n\n    if (experimentalExactManifestTimings) {\n      if (time > 0) {\n        continue;\n      }\n    } else if (time - TIME_FUDGE_FACTOR >= 0) {\n      continue;\n    }\n\n    return {\n      partIndex: _partAndSegment2.partIndex,\n      segmentIndex: _partAndSegment2.segmentIndex,\n      startTime: startTime + sumDurations({\n        defaultDuration: playlist.targetDuration,\n        durationList: partsAndSegments,\n        startIndex: startIndex,\n        endIndex: _i4\n      })\n    };\n  } // We are out of possible candidates so load the last one...\n\n\n  return {\n    segmentIndex: partsAndSegments[partsAndSegments.length - 1].segmentIndex,\n    partIndex: partsAndSegments[partsAndSegments.length - 1].partIndex,\n    startTime: currentTime\n  };\n};\n/**\n * Check whether the playlist is blacklisted or not.\n *\n * @param {Object} playlist the media playlist object\n * @return {boolean} whether the playlist is blacklisted or not\n * @function isBlacklisted\n */\n\n\nvar isBlacklisted = function isBlacklisted(playlist) {\n  return playlist.excludeUntil && playlist.excludeUntil > Date.now();\n};\n/**\n * Check whether the playlist is compatible with current playback configuration or has\n * been blacklisted permanently for being incompatible.\n *\n * @param {Object} playlist the media playlist object\n * @return {boolean} whether the playlist is incompatible or not\n * @function isIncompatible\n */\n\n\nvar isIncompatible = function isIncompatible(playlist) {\n  return playlist.excludeUntil && playlist.excludeUntil === Infinity;\n};\n/**\n * Check whether the playlist is enabled or not.\n *\n * @param {Object} playlist the media playlist object\n * @return {boolean} whether the playlist is enabled or not\n * @function isEnabled\n */\n\n\nvar isEnabled = function isEnabled(playlist) {\n  var blacklisted = isBlacklisted(playlist);\n  return !playlist.disabled && !blacklisted;\n};\n/**\n * Check whether the playlist has been manually disabled through the representations api.\n *\n * @param {Object} playlist the media playlist object\n * @return {boolean} whether the playlist is disabled manually or not\n * @function isDisabled\n */\n\n\nvar isDisabled = function isDisabled(playlist) {\n  return playlist.disabled;\n};\n/**\n * Returns whether the current playlist is an AES encrypted HLS stream\n *\n * @return {boolean} true if it's an AES encrypted HLS stream\n */\n\n\nvar isAes = function isAes(media) {\n  for (var i = 0; i < media.segments.length; i++) {\n    if (media.segments[i].key) {\n      return true;\n    }\n  }\n\n  return false;\n};\n/**\n * Checks if the playlist has a value for the specified attribute\n *\n * @param {string} attr\n *        Attribute to check for\n * @param {Object} playlist\n *        The media playlist object\n * @return {boolean}\n *         Whether the playlist contains a value for the attribute or not\n * @function hasAttribute\n */\n\n\nvar hasAttribute = function hasAttribute(attr, playlist) {\n  return playlist.attributes && playlist.attributes[attr];\n};\n/**\n * Estimates the time required to complete a segment download from the specified playlist\n *\n * @param {number} segmentDuration\n *        Duration of requested segment\n * @param {number} bandwidth\n *        Current measured bandwidth of the player\n * @param {Object} playlist\n *        The media playlist object\n * @param {number=} bytesReceived\n *        Number of bytes already received for the request. Defaults to 0\n * @return {number|NaN}\n *         The estimated time to request the segment. NaN if bandwidth information for\n *         the given playlist is unavailable\n * @function estimateSegmentRequestTime\n */\n\n\nvar estimateSegmentRequestTime = function estimateSegmentRequestTime(segmentDuration, bandwidth, playlist, bytesReceived) {\n  if (bytesReceived === void 0) {\n    bytesReceived = 0;\n  }\n\n  if (!hasAttribute('BANDWIDTH', playlist)) {\n    return NaN;\n  }\n\n  var size = segmentDuration * playlist.attributes.BANDWIDTH;\n  return (size - bytesReceived * 8) / bandwidth;\n};\n/*\n * Returns whether the current playlist is the lowest rendition\n *\n * @return {Boolean} true if on lowest rendition\n */\n\n\nvar isLowestEnabledRendition = function isLowestEnabledRendition(master, media) {\n  if (master.playlists.length === 1) {\n    return true;\n  }\n\n  var currentBandwidth = media.attributes.BANDWIDTH || Number.MAX_VALUE;\n  return master.playlists.filter(function (playlist) {\n    if (!isEnabled(playlist)) {\n      return false;\n    }\n\n    return (playlist.attributes.BANDWIDTH || 0) < currentBandwidth;\n  }).length === 0;\n};\n\nvar playlistMatch = function playlistMatch(a, b) {\n  // both playlits are null\n  // or only one playlist is non-null\n  // no match\n  if (!a && !b || !a && b || a && !b) {\n    return false;\n  } // playlist objects are the same, match\n\n\n  if (a === b) {\n    return true;\n  } // first try to use id as it should be the most\n  // accurate\n\n\n  if (a.id && b.id && a.id === b.id) {\n    return true;\n  } // next try to use reslovedUri as it should be the\n  // second most accurate.\n\n\n  if (a.resolvedUri && b.resolvedUri && a.resolvedUri === b.resolvedUri) {\n    return true;\n  } // finally try to use uri as it should be accurate\n  // but might miss a few cases for relative uris\n\n\n  if (a.uri && b.uri && a.uri === b.uri) {\n    return true;\n  }\n\n  return false;\n};\n\nvar someAudioVariant = function someAudioVariant(master, callback) {\n  var AUDIO = master && master.mediaGroups && master.mediaGroups.AUDIO || {};\n  var found = false;\n\n  for (var groupName in AUDIO) {\n    for (var label in AUDIO[groupName]) {\n      found = callback(AUDIO[groupName][label]);\n\n      if (found) {\n        break;\n      }\n    }\n\n    if (found) {\n      break;\n    }\n  }\n\n  return !!found;\n};\n\nvar isAudioOnly = function isAudioOnly(master) {\n  // we are audio only if we have no main playlists but do\n  // have media group playlists.\n  if (!master || !master.playlists || !master.playlists.length) {\n    // without audio variants or playlists this\n    // is not an audio only master.\n    var found = someAudioVariant(master, function (variant) {\n      return variant.playlists && variant.playlists.length || variant.uri;\n    });\n    return found;\n  } // if every playlist has only an audio codec it is audio only\n\n\n  var _loop = function _loop(i) {\n    var playlist = master.playlists[i];\n    var CODECS = playlist.attributes && playlist.attributes.CODECS; // all codecs are audio, this is an audio playlist.\n\n    if (CODECS && CODECS.split(',').every(function (c) {\n      return isAudioCodec(c);\n    })) {\n      return \"continue\";\n    } // playlist is in an audio group it is audio only\n\n\n    var found = someAudioVariant(master, function (variant) {\n      return playlistMatch(playlist, variant);\n    });\n\n    if (found) {\n      return \"continue\";\n    } // if we make it here this playlist isn't audio and we\n    // are not audio only\n\n\n    return {\n      v: false\n    };\n  };\n\n  for (var i = 0; i < master.playlists.length; i++) {\n    var _ret = _loop(i);\n\n    if (_ret === \"continue\") continue;\n    if (typeof _ret === \"object\") return _ret.v;\n  } // if we make it past every playlist without returning, then\n  // this is an audio only playlist.\n\n\n  return true;\n}; // exports\n\n\nvar Playlist = {\n  liveEdgeDelay: liveEdgeDelay,\n  duration: duration,\n  seekable: seekable,\n  getMediaInfoForTime: getMediaInfoForTime,\n  isEnabled: isEnabled,\n  isDisabled: isDisabled,\n  isBlacklisted: isBlacklisted,\n  isIncompatible: isIncompatible,\n  playlistEnd: playlistEnd,\n  isAes: isAes,\n  hasAttribute: hasAttribute,\n  estimateSegmentRequestTime: estimateSegmentRequestTime,\n  isLowestEnabledRendition: isLowestEnabledRendition,\n  isAudioOnly: isAudioOnly,\n  playlistMatch: playlistMatch\n};\nvar log = videojs.log;\n\nvar createPlaylistID = function createPlaylistID(index, uri) {\n  return index + \"-\" + uri;\n};\n/**\n * Parses a given m3u8 playlist\n *\n * @param {Function} [onwarn]\n *        a function to call when the parser triggers a warning event.\n * @param {Function} [oninfo]\n *        a function to call when the parser triggers an info event.\n * @param {string} manifestString\n *        The downloaded manifest string\n * @param {Object[]} [customTagParsers]\n *        An array of custom tag parsers for the m3u8-parser instance\n * @param {Object[]} [customTagMappers]\n *        An array of custom tag mappers for the m3u8-parser instance\n * @param {boolean} [experimentalLLHLS=false]\n *        Whether to keep ll-hls features in the manifest after parsing.\n * @return {Object}\n *         The manifest object\n */\n\n\nvar parseManifest = function parseManifest(_ref) {\n  var onwarn = _ref.onwarn,\n      oninfo = _ref.oninfo,\n      manifestString = _ref.manifestString,\n      _ref$customTagParsers = _ref.customTagParsers,\n      customTagParsers = _ref$customTagParsers === void 0 ? [] : _ref$customTagParsers,\n      _ref$customTagMappers = _ref.customTagMappers,\n      customTagMappers = _ref$customTagMappers === void 0 ? [] : _ref$customTagMappers,\n      experimentalLLHLS = _ref.experimentalLLHLS;\n  var parser = new Parser();\n\n  if (onwarn) {\n    parser.on('warn', onwarn);\n  }\n\n  if (oninfo) {\n    parser.on('info', oninfo);\n  }\n\n  customTagParsers.forEach(function (customParser) {\n    return parser.addParser(customParser);\n  });\n  customTagMappers.forEach(function (mapper) {\n    return parser.addTagMapper(mapper);\n  });\n  parser.push(manifestString);\n  parser.end();\n  var manifest = parser.manifest; // remove llhls features from the parsed manifest\n  // if we don't want llhls support.\n\n  if (!experimentalLLHLS) {\n    ['preloadSegment', 'skip', 'serverControl', 'renditionReports', 'partInf', 'partTargetDuration'].forEach(function (k) {\n      if (manifest.hasOwnProperty(k)) {\n        delete manifest[k];\n      }\n    });\n\n    if (manifest.segments) {\n      manifest.segments.forEach(function (segment) {\n        ['parts', 'preloadHints'].forEach(function (k) {\n          if (segment.hasOwnProperty(k)) {\n            delete segment[k];\n          }\n        });\n      });\n    }\n  }\n\n  if (!manifest.targetDuration) {\n    var targetDuration = 10;\n\n    if (manifest.segments && manifest.segments.length) {\n      targetDuration = manifest.segments.reduce(function (acc, s) {\n        return Math.max(acc, s.duration);\n      }, 0);\n    }\n\n    if (onwarn) {\n      onwarn(\"manifest has no targetDuration defaulting to \" + targetDuration);\n    }\n\n    manifest.targetDuration = targetDuration;\n  }\n\n  var parts = getLastParts(manifest);\n\n  if (parts.length && !manifest.partTargetDuration) {\n    var partTargetDuration = parts.reduce(function (acc, p) {\n      return Math.max(acc, p.duration);\n    }, 0);\n\n    if (onwarn) {\n      onwarn(\"manifest has no partTargetDuration defaulting to \" + partTargetDuration);\n      log.error('LL-HLS manifest has parts but lacks required #EXT-X-PART-INF:PART-TARGET value. See https://datatracker.ietf.org/doc/html/draft-pantos-hls-rfc8216bis-09#section-4.4.3.7. Playback is not guaranteed.');\n    }\n\n    manifest.partTargetDuration = partTargetDuration;\n  }\n\n  return manifest;\n};\n/**\n * Loops through all supported media groups in master and calls the provided\n * callback for each group\n *\n * @param {Object} master\n *        The parsed master manifest object\n * @param {Function} callback\n *        Callback to call for each media group\n */\n\n\nvar forEachMediaGroup = function forEachMediaGroup(master, callback) {\n  if (!master.mediaGroups) {\n    return;\n  }\n\n  ['AUDIO', 'SUBTITLES'].forEach(function (mediaType) {\n    if (!master.mediaGroups[mediaType]) {\n      return;\n    }\n\n    for (var groupKey in master.mediaGroups[mediaType]) {\n      for (var labelKey in master.mediaGroups[mediaType][groupKey]) {\n        var mediaProperties = master.mediaGroups[mediaType][groupKey][labelKey];\n        callback(mediaProperties, mediaType, groupKey, labelKey);\n      }\n    }\n  });\n};\n/**\n * Adds properties and attributes to the playlist to keep consistent functionality for\n * playlists throughout VHS.\n *\n * @param {Object} config\n *        Arguments object\n * @param {Object} config.playlist\n *        The media playlist\n * @param {string} [config.uri]\n *        The uri to the media playlist (if media playlist is not from within a master\n *        playlist)\n * @param {string} id\n *        ID to use for the playlist\n */\n\n\nvar setupMediaPlaylist = function setupMediaPlaylist(_ref2) {\n  var playlist = _ref2.playlist,\n      uri = _ref2.uri,\n      id = _ref2.id;\n  playlist.id = id;\n  playlist.playlistErrors_ = 0;\n\n  if (uri) {\n    // For media playlists, m3u8-parser does not have access to a URI, as HLS media\n    // playlists do not contain their own source URI, but one is needed for consistency in\n    // VHS.\n    playlist.uri = uri;\n  } // For HLS master playlists, even though certain attributes MUST be defined, the\n  // stream may still be played without them.\n  // For HLS media playlists, m3u8-parser does not attach an attributes object to the\n  // manifest.\n  //\n  // To avoid undefined reference errors through the project, and make the code easier\n  // to write/read, add an empty attributes object for these cases.\n\n\n  playlist.attributes = playlist.attributes || {};\n};\n/**\n * Adds ID, resolvedUri, and attributes properties to each playlist of the master, where\n * necessary. In addition, creates playlist IDs for each playlist and adds playlist ID to\n * playlist references to the playlists array.\n *\n * @param {Object} master\n *        The master playlist\n */\n\n\nvar setupMediaPlaylists = function setupMediaPlaylists(master) {\n  var i = master.playlists.length;\n\n  while (i--) {\n    var playlist = master.playlists[i];\n    setupMediaPlaylist({\n      playlist: playlist,\n      id: createPlaylistID(i, playlist.uri)\n    });\n    playlist.resolvedUri = resolveUrl(master.uri, playlist.uri);\n    master.playlists[playlist.id] = playlist; // URI reference added for backwards compatibility\n\n    master.playlists[playlist.uri] = playlist; // Although the spec states an #EXT-X-STREAM-INF tag MUST have a BANDWIDTH attribute,\n    // the stream can be played without it. Although an attributes property may have been\n    // added to the playlist to prevent undefined references, issue a warning to fix the\n    // manifest.\n\n    if (!playlist.attributes.BANDWIDTH) {\n      log.warn('Invalid playlist STREAM-INF detected. Missing BANDWIDTH attribute.');\n    }\n  }\n};\n/**\n * Adds resolvedUri properties to each media group.\n *\n * @param {Object} master\n *        The master playlist\n */\n\n\nvar resolveMediaGroupUris = function resolveMediaGroupUris(master) {\n  forEachMediaGroup(master, function (properties) {\n    if (properties.uri) {\n      properties.resolvedUri = resolveUrl(master.uri, properties.uri);\n    }\n  });\n};\n/**\n * Creates a master playlist wrapper to insert a sole media playlist into.\n *\n * @param {Object} media\n *        Media playlist\n * @param {string} uri\n *        The media URI\n *\n * @return {Object}\n *         Master playlist\n */\n\n\nvar masterForMedia = function masterForMedia(media, uri) {\n  var id = createPlaylistID(0, uri);\n  var master = {\n    mediaGroups: {\n      'AUDIO': {},\n      'VIDEO': {},\n      'CLOSED-CAPTIONS': {},\n      'SUBTITLES': {}\n    },\n    uri: window.location.href,\n    resolvedUri: window.location.href,\n    playlists: [{\n      uri: uri,\n      id: id,\n      resolvedUri: uri,\n      // m3u8-parser does not attach an attributes property to media playlists so make\n      // sure that the property is attached to avoid undefined reference errors\n      attributes: {}\n    }]\n  }; // set up ID reference\n\n  master.playlists[id] = master.playlists[0]; // URI reference added for backwards compatibility\n\n  master.playlists[uri] = master.playlists[0];\n  return master;\n};\n/**\n * Does an in-place update of the master manifest to add updated playlist URI references\n * as well as other properties needed by VHS that aren't included by the parser.\n *\n * @param {Object} master\n *        Master manifest object\n * @param {string} uri\n *        The source URI\n */\n\n\nvar addPropertiesToMaster = function addPropertiesToMaster(master, uri) {\n  master.uri = uri;\n\n  for (var i = 0; i < master.playlists.length; i++) {\n    if (!master.playlists[i].uri) {\n      // Set up phony URIs for the playlists since playlists are referenced by their URIs\n      // throughout VHS, but some formats (e.g., DASH) don't have external URIs\n      // TODO: consider adding dummy URIs in mpd-parser\n      var phonyUri = \"placeholder-uri-\" + i;\n      master.playlists[i].uri = phonyUri;\n    }\n  }\n\n  var audioOnlyMaster = isAudioOnly(master);\n  forEachMediaGroup(master, function (properties, mediaType, groupKey, labelKey) {\n    var groupId = \"placeholder-uri-\" + mediaType + \"-\" + groupKey + \"-\" + labelKey; // add a playlist array under properties\n\n    if (!properties.playlists || !properties.playlists.length) {\n      // If the manifest is audio only and this media group does not have a uri, check\n      // if the media group is located in the main list of playlists. If it is, don't add\n      // placeholder properties as it shouldn't be considered an alternate audio track.\n      if (audioOnlyMaster && mediaType === 'AUDIO' && !properties.uri) {\n        for (var _i = 0; _i < master.playlists.length; _i++) {\n          var p = master.playlists[_i];\n\n          if (p.attributes && p.attributes.AUDIO && p.attributes.AUDIO === groupKey) {\n            return;\n          }\n        }\n      }\n\n      properties.playlists = [_extends({}, properties)];\n    }\n\n    properties.playlists.forEach(function (p, i) {\n      var id = createPlaylistID(i, groupId);\n\n      if (p.uri) {\n        p.resolvedUri = p.resolvedUri || resolveUrl(master.uri, p.uri);\n      } else {\n        // DEPRECATED, this has been added to prevent a breaking change.\n        // previously we only ever had a single media group playlist, so\n        // we mark the first playlist uri without prepending the index as we used to\n        // ideally we would do all of the playlists the same way.\n        p.uri = i === 0 ? groupId : id; // don't resolve a placeholder uri to an absolute url, just use\n        // the placeholder again\n\n        p.resolvedUri = p.uri;\n      }\n\n      p.id = p.id || id; // add an empty attributes object, all playlists are\n      // expected to have this.\n\n      p.attributes = p.attributes || {}; // setup ID and URI references (URI for backwards compatibility)\n\n      master.playlists[p.id] = p;\n      master.playlists[p.uri] = p;\n    });\n  });\n  setupMediaPlaylists(master);\n  resolveMediaGroupUris(master);\n};\n\nvar mergeOptions$2 = videojs.mergeOptions,\n    EventTarget$1 = videojs.EventTarget;\n\nvar addLLHLSQueryDirectives = function addLLHLSQueryDirectives(uri, media) {\n  if (media.endList) {\n    return uri;\n  }\n\n  var query = [];\n\n  if (media.serverControl && media.serverControl.canBlockReload) {\n    var preloadSegment = media.preloadSegment; // next msn is a zero based value, length is not.\n\n    var nextMSN = media.mediaSequence + media.segments.length; // If preload segment has parts then it is likely\n    // that we are going to request a part of that preload segment.\n    // the logic below is used to determine that.\n\n    if (preloadSegment) {\n      var parts = preloadSegment.parts || []; // _HLS_part is a zero based index\n\n      var nextPart = getKnownPartCount(media) - 1; // if nextPart is > -1 and not equal to just the\n      // length of parts, then we know we had part preload hints\n      // and we need to add the _HLS_part= query\n\n      if (nextPart > -1 && nextPart !== parts.length - 1) {\n        // add existing parts to our preload hints\n        query.push(\"_HLS_part=\" + nextPart);\n      } // this if statement makes sure that we request the msn\n      // of the preload segment if:\n      // 1. the preload segment had parts (and was not yet a full segment)\n      //    but was added to our segments array\n      // 2. the preload segment had preload hints for parts that are not in\n      //    the manifest yet.\n      // in all other cases we want the segment after the preload segment\n      // which will be given by using media.segments.length because it is 1 based\n      // rather than 0 based.\n\n\n      if (nextPart > -1 || parts.length) {\n        nextMSN--;\n      }\n    } // add _HLS_msn= in front of any _HLS_part query\n\n\n    query.unshift(\"_HLS_msn=\" + nextMSN);\n  }\n\n  if (media.serverControl && media.serverControl.canSkipUntil) {\n    // add _HLS_skip= infront of all other queries.\n    query.unshift('_HLS_skip=' + (media.serverControl.canSkipDateranges ? 'v2' : 'YES'));\n  }\n\n  query.forEach(function (str, i) {\n    var symbol = i === 0 ? '?' : '&';\n    uri += \"\" + symbol + str;\n  });\n  return uri;\n};\n/**\n * Returns a new segment object with properties and\n * the parts array merged.\n *\n * @param {Object} a the old segment\n * @param {Object} b the new segment\n *\n * @return {Object} the merged segment\n */\n\n\nvar updateSegment = function updateSegment(a, b) {\n  if (!a) {\n    return b;\n  }\n\n  var result = mergeOptions$2(a, b); // if only the old segment has preload hints\n  // and the new one does not, remove preload hints.\n\n  if (a.preloadHints && !b.preloadHints) {\n    delete result.preloadHints;\n  } // if only the old segment has parts\n  // then the parts are no longer valid\n\n\n  if (a.parts && !b.parts) {\n    delete result.parts; // if both segments have parts\n    // copy part propeties from the old segment\n    // to the new one.\n  } else if (a.parts && b.parts) {\n    for (var i = 0; i < b.parts.length; i++) {\n      if (a.parts && a.parts[i]) {\n        result.parts[i] = mergeOptions$2(a.parts[i], b.parts[i]);\n      }\n    }\n  } // set skipped to false for segments that have\n  // have had information merged from the old segment.\n\n\n  if (!a.skipped && b.skipped) {\n    result.skipped = false;\n  } // set preload to false for segments that have\n  // had information added in the new segment.\n\n\n  if (a.preload && !b.preload) {\n    result.preload = false;\n  }\n\n  return result;\n};\n/**\n * Returns a new array of segments that is the result of merging\n * properties from an older list of segments onto an updated\n * list. No properties on the updated playlist will be ovewritten.\n *\n * @param {Array} original the outdated list of segments\n * @param {Array} update the updated list of segments\n * @param {number=} offset the index of the first update\n * segment in the original segment list. For non-live playlists,\n * this should always be zero and does not need to be\n * specified. For live playlists, it should be the difference\n * between the media sequence numbers in the original and updated\n * playlists.\n * @return {Array} a list of merged segment objects\n */\n\n\nvar updateSegments = function updateSegments(original, update, offset) {\n  var oldSegments = original.slice();\n  var newSegments = update.slice();\n  offset = offset || 0;\n  var result = [];\n  var currentMap;\n\n  for (var newIndex = 0; newIndex < newSegments.length; newIndex++) {\n    var oldSegment = oldSegments[newIndex + offset];\n    var newSegment = newSegments[newIndex];\n\n    if (oldSegment) {\n      currentMap = oldSegment.map || currentMap;\n      result.push(updateSegment(oldSegment, newSegment));\n    } else {\n      // carry over map to new segment if it is missing\n      if (currentMap && !newSegment.map) {\n        newSegment.map = currentMap;\n      }\n\n      result.push(newSegment);\n    }\n  }\n\n  return result;\n};\n\nvar resolveSegmentUris = function resolveSegmentUris(segment, baseUri) {\n  // preloadSegment will not have a uri at all\n  // as the segment isn't actually in the manifest yet, only parts\n  if (!segment.resolvedUri && segment.uri) {\n    segment.resolvedUri = resolveUrl(baseUri, segment.uri);\n  }\n\n  if (segment.key && !segment.key.resolvedUri) {\n    segment.key.resolvedUri = resolveUrl(baseUri, segment.key.uri);\n  }\n\n  if (segment.map && !segment.map.resolvedUri) {\n    segment.map.resolvedUri = resolveUrl(baseUri, segment.map.uri);\n  }\n\n  if (segment.map && segment.map.key && !segment.map.key.resolvedUri) {\n    segment.map.key.resolvedUri = resolveUrl(baseUri, segment.map.key.uri);\n  }\n\n  if (segment.parts && segment.parts.length) {\n    segment.parts.forEach(function (p) {\n      if (p.resolvedUri) {\n        return;\n      }\n\n      p.resolvedUri = resolveUrl(baseUri, p.uri);\n    });\n  }\n\n  if (segment.preloadHints && segment.preloadHints.length) {\n    segment.preloadHints.forEach(function (p) {\n      if (p.resolvedUri) {\n        return;\n      }\n\n      p.resolvedUri = resolveUrl(baseUri, p.uri);\n    });\n  }\n};\n\nvar getAllSegments = function getAllSegments(media) {\n  var segments = media.segments || [];\n  var preloadSegment = media.preloadSegment; // a preloadSegment with only preloadHints is not currently\n  // a usable segment, only include a preloadSegment that has\n  // parts.\n\n  if (preloadSegment && preloadSegment.parts && preloadSegment.parts.length) {\n    // if preloadHints has a MAP that means that the\n    // init segment is going to change. We cannot use any of the parts\n    // from this preload segment.\n    if (preloadSegment.preloadHints) {\n      for (var i = 0; i < preloadSegment.preloadHints.length; i++) {\n        if (preloadSegment.preloadHints[i].type === 'MAP') {\n          return segments;\n        }\n      }\n    } // set the duration for our preload segment to target duration.\n\n\n    preloadSegment.duration = media.targetDuration;\n    preloadSegment.preload = true;\n    segments.push(preloadSegment);\n  }\n\n  return segments;\n}; // consider the playlist unchanged if the playlist object is the same or\n// the number of segments is equal, the media sequence number is unchanged,\n// and this playlist hasn't become the end of the playlist\n\n\nvar isPlaylistUnchanged = function isPlaylistUnchanged(a, b) {\n  return a === b || a.segments && b.segments && a.segments.length === b.segments.length && a.endList === b.endList && a.mediaSequence === b.mediaSequence;\n};\n/**\n  * Returns a new master playlist that is the result of merging an\n  * updated media playlist into the original version. If the\n  * updated media playlist does not match any of the playlist\n  * entries in the original master playlist, null is returned.\n  *\n  * @param {Object} master a parsed master M3U8 object\n  * @param {Object} media a parsed media M3U8 object\n  * @return {Object} a new object that represents the original\n  * master playlist with the updated media playlist merged in, or\n  * null if the merge produced no change.\n  */\n\n\nvar updateMaster$1 = function updateMaster(master, newMedia, unchangedCheck) {\n  if (unchangedCheck === void 0) {\n    unchangedCheck = isPlaylistUnchanged;\n  }\n\n  var result = mergeOptions$2(master, {});\n  var oldMedia = result.playlists[newMedia.id];\n\n  if (!oldMedia) {\n    return null;\n  }\n\n  if (unchangedCheck(oldMedia, newMedia)) {\n    return null;\n  }\n\n  newMedia.segments = getAllSegments(newMedia);\n  var mergedPlaylist = mergeOptions$2(oldMedia, newMedia); // always use the new media's preload segment\n\n  if (mergedPlaylist.preloadSegment && !newMedia.preloadSegment) {\n    delete mergedPlaylist.preloadSegment;\n  } // if the update could overlap existing segment information, merge the two segment lists\n\n\n  if (oldMedia.segments) {\n    if (newMedia.skip) {\n      newMedia.segments = newMedia.segments || []; // add back in objects for skipped segments, so that we merge\n      // old properties into the new segments\n\n      for (var i = 0; i < newMedia.skip.skippedSegments; i++) {\n        newMedia.segments.unshift({\n          skipped: true\n        });\n      }\n    }\n\n    mergedPlaylist.segments = updateSegments(oldMedia.segments, newMedia.segments, newMedia.mediaSequence - oldMedia.mediaSequence);\n  } // resolve any segment URIs to prevent us from having to do it later\n\n\n  mergedPlaylist.segments.forEach(function (segment) {\n    resolveSegmentUris(segment, mergedPlaylist.resolvedUri);\n  }); // TODO Right now in the playlists array there are two references to each playlist, one\n  // that is referenced by index, and one by URI. The index reference may no longer be\n  // necessary.\n\n  for (var _i = 0; _i < result.playlists.length; _i++) {\n    if (result.playlists[_i].id === newMedia.id) {\n      result.playlists[_i] = mergedPlaylist;\n    }\n  }\n\n  result.playlists[newMedia.id] = mergedPlaylist; // URI reference added for backwards compatibility\n\n  result.playlists[newMedia.uri] = mergedPlaylist; // update media group playlist references.\n\n  forEachMediaGroup(master, function (properties, mediaType, groupKey, labelKey) {\n    if (!properties.playlists) {\n      return;\n    }\n\n    for (var _i2 = 0; _i2 < properties.playlists.length; _i2++) {\n      if (newMedia.id === properties.playlists[_i2].id) {\n        properties.playlists[_i2] = newMedia;\n      }\n    }\n  });\n  return result;\n};\n/**\n * Calculates the time to wait before refreshing a live playlist\n *\n * @param {Object} media\n *        The current media\n * @param {boolean} update\n *        True if there were any updates from the last refresh, false otherwise\n * @return {number}\n *         The time in ms to wait before refreshing the live playlist\n */\n\n\nvar refreshDelay = function refreshDelay(media, update) {\n  var lastSegment = media.segments[media.segments.length - 1];\n  var lastPart = lastSegment && lastSegment.parts && lastSegment.parts[lastSegment.parts.length - 1];\n  var lastDuration = lastPart && lastPart.duration || lastSegment && lastSegment.duration;\n\n  if (update && lastDuration) {\n    return lastDuration * 1000;\n  } // if the playlist is unchanged since the last reload or last segment duration\n  // cannot be determined, try again after half the target duration\n\n\n  return (media.partTargetDuration || media.targetDuration || 10) * 500;\n};\n/**\n * Load a playlist from a remote location\n *\n * @class PlaylistLoader\n * @extends Stream\n * @param {string|Object} src url or object of manifest\n * @param {boolean} withCredentials the withCredentials xhr option\n * @class\n */\n\n\nvar PlaylistLoader = /*#__PURE__*/function (_EventTarget) {\n  _inheritsLoose(PlaylistLoader, _EventTarget);\n\n  function PlaylistLoader(src, vhs, options) {\n    var _this;\n\n    if (options === void 0) {\n      options = {};\n    }\n\n    _this = _EventTarget.call(this) || this;\n\n    if (!src) {\n      throw new Error('A non-empty playlist URL or object is required');\n    }\n\n    _this.logger_ = logger('PlaylistLoader');\n    var _options = options,\n        _options$withCredenti = _options.withCredentials,\n        withCredentials = _options$withCredenti === void 0 ? false : _options$withCredenti,\n        _options$handleManife = _options.handleManifestRedirects,\n        handleManifestRedirects = _options$handleManife === void 0 ? false : _options$handleManife;\n    _this.src = src;\n    _this.vhs_ = vhs;\n    _this.withCredentials = withCredentials;\n    _this.handleManifestRedirects = handleManifestRedirects;\n    var vhsOptions = vhs.options_;\n    _this.customTagParsers = vhsOptions && vhsOptions.customTagParsers || [];\n    _this.customTagMappers = vhsOptions && vhsOptions.customTagMappers || [];\n    _this.experimentalLLHLS = vhsOptions && vhsOptions.experimentalLLHLS || false; // initialize the loader state\n\n    _this.state = 'HAVE_NOTHING'; // live playlist staleness timeout\n\n    _this.handleMediaupdatetimeout_ = _this.handleMediaupdatetimeout_.bind(_assertThisInitialized(_this));\n\n    _this.on('mediaupdatetimeout', _this.handleMediaupdatetimeout_);\n\n    return _this;\n  }\n\n  var _proto = PlaylistLoader.prototype;\n\n  _proto.handleMediaupdatetimeout_ = function handleMediaupdatetimeout_() {\n    var _this2 = this;\n\n    if (this.state !== 'HAVE_METADATA') {\n      // only refresh the media playlist if no other activity is going on\n      return;\n    }\n\n    var media = this.media();\n    var uri = resolveUrl(this.master.uri, media.uri);\n\n    if (this.experimentalLLHLS) {\n      uri = addLLHLSQueryDirectives(uri, media);\n    }\n\n    this.state = 'HAVE_CURRENT_METADATA';\n    this.request = this.vhs_.xhr({\n      uri: uri,\n      withCredentials: this.withCredentials\n    }, function (error, req) {\n      // disposed\n      if (!_this2.request) {\n        return;\n      }\n\n      if (error) {\n        return _this2.playlistRequestError(_this2.request, _this2.media(), 'HAVE_METADATA');\n      }\n\n      _this2.haveMetadata({\n        playlistString: _this2.request.responseText,\n        url: _this2.media().uri,\n        id: _this2.media().id\n      });\n    });\n  };\n\n  _proto.playlistRequestError = function playlistRequestError(xhr, playlist, startingState) {\n    var uri = playlist.uri,\n        id = playlist.id; // any in-flight request is now finished\n\n    this.request = null;\n\n    if (startingState) {\n      this.state = startingState;\n    }\n\n    this.error = {\n      playlist: this.master.playlists[id],\n      status: xhr.status,\n      message: \"HLS playlist request error at URL: \" + uri + \".\",\n      responseText: xhr.responseText,\n      code: xhr.status >= 500 ? 4 : 2\n    };\n    this.trigger('error');\n  };\n\n  _proto.parseManifest_ = function parseManifest_(_ref) {\n    var _this3 = this;\n\n    var url = _ref.url,\n        manifestString = _ref.manifestString;\n    return parseManifest({\n      onwarn: function onwarn(_ref2) {\n        var message = _ref2.message;\n        return _this3.logger_(\"m3u8-parser warn for \" + url + \": \" + message);\n      },\n      oninfo: function oninfo(_ref3) {\n        var message = _ref3.message;\n        return _this3.logger_(\"m3u8-parser info for \" + url + \": \" + message);\n      },\n      manifestString: manifestString,\n      customTagParsers: this.customTagParsers,\n      customTagMappers: this.customTagMappers,\n      experimentalLLHLS: this.experimentalLLHLS\n    });\n  }\n  /**\n   * Update the playlist loader's state in response to a new or updated playlist.\n   *\n   * @param {string} [playlistString]\n   *        Playlist string (if playlistObject is not provided)\n   * @param {Object} [playlistObject]\n   *        Playlist object (if playlistString is not provided)\n   * @param {string} url\n   *        URL of playlist\n   * @param {string} id\n   *        ID to use for playlist\n   */\n  ;\n\n  _proto.haveMetadata = function haveMetadata(_ref4) {\n    var playlistString = _ref4.playlistString,\n        playlistObject = _ref4.playlistObject,\n        url = _ref4.url,\n        id = _ref4.id; // any in-flight request is now finished\n\n    this.request = null;\n    this.state = 'HAVE_METADATA';\n    var playlist = playlistObject || this.parseManifest_({\n      url: url,\n      manifestString: playlistString\n    });\n    playlist.lastRequest = Date.now();\n    setupMediaPlaylist({\n      playlist: playlist,\n      uri: url,\n      id: id\n    }); // merge this playlist into the master\n\n    var update = updateMaster$1(this.master, playlist);\n    this.targetDuration = playlist.partTargetDuration || playlist.targetDuration;\n\n    if (update) {\n      this.master = update;\n      this.media_ = this.master.playlists[id];\n    } else {\n      this.trigger('playlistunchanged');\n    }\n\n    this.updateMediaUpdateTimeout_(refreshDelay(this.media(), !!update));\n    this.trigger('loadedplaylist');\n  }\n  /**\n    * Abort any outstanding work and clean up.\n    */\n  ;\n\n  _proto.dispose = function dispose() {\n    this.trigger('dispose');\n    this.stopRequest();\n    window.clearTimeout(this.mediaUpdateTimeout);\n    window.clearTimeout(this.finalRenditionTimeout);\n    this.off();\n  };\n\n  _proto.stopRequest = function stopRequest() {\n    if (this.request) {\n      var oldRequest = this.request;\n      this.request = null;\n      oldRequest.onreadystatechange = null;\n      oldRequest.abort();\n    }\n  }\n  /**\n    * When called without any arguments, returns the currently\n    * active media playlist. When called with a single argument,\n    * triggers the playlist loader to asynchronously switch to the\n    * specified media playlist. Calling this method while the\n    * loader is in the HAVE_NOTHING causes an error to be emitted\n    * but otherwise has no effect.\n    *\n    * @param {Object=} playlist the parsed media playlist\n    * object to switch to\n    * @param {boolean=} shouldDelay whether we should delay the request by half target duration\n    *\n    * @return {Playlist} the current loaded media\n    */\n  ;\n\n  _proto.media = function media(playlist, shouldDelay) {\n    var _this4 = this; // getter\n\n\n    if (!playlist) {\n      return this.media_;\n    } // setter\n\n\n    if (this.state === 'HAVE_NOTHING') {\n      throw new Error('Cannot switch media playlist from ' + this.state);\n    } // find the playlist object if the target playlist has been\n    // specified by URI\n\n\n    if (typeof playlist === 'string') {\n      if (!this.master.playlists[playlist]) {\n        throw new Error('Unknown playlist URI: ' + playlist);\n      }\n\n      playlist = this.master.playlists[playlist];\n    }\n\n    window.clearTimeout(this.finalRenditionTimeout);\n\n    if (shouldDelay) {\n      var delay = (playlist.partTargetDuration || playlist.targetDuration) / 2 * 1000 || 5 * 1000;\n      this.finalRenditionTimeout = window.setTimeout(this.media.bind(this, playlist, false), delay);\n      return;\n    }\n\n    var startingState = this.state;\n    var mediaChange = !this.media_ || playlist.id !== this.media_.id;\n    var masterPlaylistRef = this.master.playlists[playlist.id]; // switch to fully loaded playlists immediately\n\n    if (masterPlaylistRef && masterPlaylistRef.endList || // handle the case of a playlist object (e.g., if using vhs-json with a resolved\n    // media playlist or, for the case of demuxed audio, a resolved audio media group)\n    playlist.endList && playlist.segments.length) {\n      // abort outstanding playlist requests\n      if (this.request) {\n        this.request.onreadystatechange = null;\n        this.request.abort();\n        this.request = null;\n      }\n\n      this.state = 'HAVE_METADATA';\n      this.media_ = playlist; // trigger media change if the active media has been updated\n\n      if (mediaChange) {\n        this.trigger('mediachanging');\n\n        if (startingState === 'HAVE_MASTER') {\n          // The initial playlist was a master manifest, and the first media selected was\n          // also provided (in the form of a resolved playlist object) as part of the\n          // source object (rather than just a URL). Therefore, since the media playlist\n          // doesn't need to be requested, loadedmetadata won't trigger as part of the\n          // normal flow, and needs an explicit trigger here.\n          this.trigger('loadedmetadata');\n        } else {\n          this.trigger('mediachange');\n        }\n      }\n\n      return;\n    } // We update/set the timeout here so that live playlists\n    // that are not a media change will \"start\" the loader as expected.\n    // We expect that this function will start the media update timeout\n    // cycle again. This also prevents a playlist switch failure from\n    // causing us to stall during live.\n\n\n    this.updateMediaUpdateTimeout_(refreshDelay(playlist, true)); // switching to the active playlist is a no-op\n\n    if (!mediaChange) {\n      return;\n    }\n\n    this.state = 'SWITCHING_MEDIA'; // there is already an outstanding playlist request\n\n    if (this.request) {\n      if (playlist.resolvedUri === this.request.url) {\n        // requesting to switch to the same playlist multiple times\n        // has no effect after the first\n        return;\n      }\n\n      this.request.onreadystatechange = null;\n      this.request.abort();\n      this.request = null;\n    } // request the new playlist\n\n\n    if (this.media_) {\n      this.trigger('mediachanging');\n    }\n\n    this.request = this.vhs_.xhr({\n      uri: playlist.resolvedUri,\n      withCredentials: this.withCredentials\n    }, function (error, req) {\n      // disposed\n      if (!_this4.request) {\n        return;\n      }\n\n      playlist.lastRequest = Date.now();\n      playlist.resolvedUri = resolveManifestRedirect(_this4.handleManifestRedirects, playlist.resolvedUri, req);\n\n      if (error) {\n        return _this4.playlistRequestError(_this4.request, playlist, startingState);\n      }\n\n      _this4.haveMetadata({\n        playlistString: req.responseText,\n        url: playlist.uri,\n        id: playlist.id\n      }); // fire loadedmetadata the first time a media playlist is loaded\n\n\n      if (startingState === 'HAVE_MASTER') {\n        _this4.trigger('loadedmetadata');\n      } else {\n        _this4.trigger('mediachange');\n      }\n    });\n  }\n  /**\n   * pause loading of the playlist\n   */\n  ;\n\n  _proto.pause = function pause() {\n    if (this.mediaUpdateTimeout) {\n      window.clearTimeout(this.mediaUpdateTimeout);\n      this.mediaUpdateTimeout = null;\n    }\n\n    this.stopRequest();\n\n    if (this.state === 'HAVE_NOTHING') {\n      // If we pause the loader before any data has been retrieved, its as if we never\n      // started, so reset to an unstarted state.\n      this.started = false;\n    } // Need to restore state now that no activity is happening\n\n\n    if (this.state === 'SWITCHING_MEDIA') {\n      // if the loader was in the process of switching media, it should either return to\n      // HAVE_MASTER or HAVE_METADATA depending on if the loader has loaded a media\n      // playlist yet. This is determined by the existence of loader.media_\n      if (this.media_) {\n        this.state = 'HAVE_METADATA';\n      } else {\n        this.state = 'HAVE_MASTER';\n      }\n    } else if (this.state === 'HAVE_CURRENT_METADATA') {\n      this.state = 'HAVE_METADATA';\n    }\n  }\n  /**\n   * start loading of the playlist\n   */\n  ;\n\n  _proto.load = function load(shouldDelay) {\n    var _this5 = this;\n\n    if (this.mediaUpdateTimeout) {\n      window.clearTimeout(this.mediaUpdateTimeout);\n      this.mediaUpdateTimeout = null;\n    }\n\n    var media = this.media();\n\n    if (shouldDelay) {\n      var delay = media ? (media.partTargetDuration || media.targetDuration) / 2 * 1000 : 5 * 1000;\n      this.mediaUpdateTimeout = window.setTimeout(function () {\n        _this5.mediaUpdateTimeout = null;\n\n        _this5.load();\n      }, delay);\n      return;\n    }\n\n    if (!this.started) {\n      this.start();\n      return;\n    }\n\n    if (media && !media.endList) {\n      this.trigger('mediaupdatetimeout');\n    } else {\n      this.trigger('loadedplaylist');\n    }\n  };\n\n  _proto.updateMediaUpdateTimeout_ = function updateMediaUpdateTimeout_(delay) {\n    var _this6 = this;\n\n    if (this.mediaUpdateTimeout) {\n      window.clearTimeout(this.mediaUpdateTimeout);\n      this.mediaUpdateTimeout = null;\n    } // we only have use mediaupdatetimeout for live playlists.\n\n\n    if (!this.media() || this.media().endList) {\n      return;\n    }\n\n    this.mediaUpdateTimeout = window.setTimeout(function () {\n      _this6.mediaUpdateTimeout = null;\n\n      _this6.trigger('mediaupdatetimeout');\n\n      _this6.updateMediaUpdateTimeout_(delay);\n    }, delay);\n  }\n  /**\n   * start loading of the playlist\n   */\n  ;\n\n  _proto.start = function start() {\n    var _this7 = this;\n\n    this.started = true;\n\n    if (typeof this.src === 'object') {\n      // in the case of an entirely constructed manifest object (meaning there's no actual\n      // manifest on a server), default the uri to the page's href\n      if (!this.src.uri) {\n        this.src.uri = window.location.href;\n      } // resolvedUri is added on internally after the initial request. Since there's no\n      // request for pre-resolved manifests, add on resolvedUri here.\n\n\n      this.src.resolvedUri = this.src.uri; // Since a manifest object was passed in as the source (instead of a URL), the first\n      // request can be skipped (since the top level of the manifest, at a minimum, is\n      // already available as a parsed manifest object). However, if the manifest object\n      // represents a master playlist, some media playlists may need to be resolved before\n      // the starting segment list is available. Therefore, go directly to setup of the\n      // initial playlist, and let the normal flow continue from there.\n      //\n      // Note that the call to setup is asynchronous, as other sections of VHS may assume\n      // that the first request is asynchronous.\n\n      setTimeout(function () {\n        _this7.setupInitialPlaylist(_this7.src);\n      }, 0);\n      return;\n    } // request the specified URL\n\n\n    this.request = this.vhs_.xhr({\n      uri: this.src,\n      withCredentials: this.withCredentials\n    }, function (error, req) {\n      // disposed\n      if (!_this7.request) {\n        return;\n      } // clear the loader's request reference\n\n\n      _this7.request = null;\n\n      if (error) {\n        _this7.error = {\n          status: req.status,\n          message: \"HLS playlist request error at URL: \" + _this7.src + \".\",\n          responseText: req.responseText,\n          // MEDIA_ERR_NETWORK\n          code: 2\n        };\n\n        if (_this7.state === 'HAVE_NOTHING') {\n          _this7.started = false;\n        }\n\n        return _this7.trigger('error');\n      }\n\n      _this7.src = resolveManifestRedirect(_this7.handleManifestRedirects, _this7.src, req);\n\n      var manifest = _this7.parseManifest_({\n        manifestString: req.responseText,\n        url: _this7.src\n      });\n\n      _this7.setupInitialPlaylist(manifest);\n    });\n  };\n\n  _proto.srcUri = function srcUri() {\n    return typeof this.src === 'string' ? this.src : this.src.uri;\n  }\n  /**\n   * Given a manifest object that's either a master or media playlist, trigger the proper\n   * events and set the state of the playlist loader.\n   *\n   * If the manifest object represents a master playlist, `loadedplaylist` will be\n   * triggered to allow listeners to select a playlist. If none is selected, the loader\n   * will default to the first one in the playlists array.\n   *\n   * If the manifest object represents a media playlist, `loadedplaylist` will be\n   * triggered followed by `loadedmetadata`, as the only available playlist is loaded.\n   *\n   * In the case of a media playlist, a master playlist object wrapper with one playlist\n   * will be created so that all logic can handle playlists in the same fashion (as an\n   * assumed manifest object schema).\n   *\n   * @param {Object} manifest\n   *        The parsed manifest object\n   */\n  ;\n\n  _proto.setupInitialPlaylist = function setupInitialPlaylist(manifest) {\n    this.state = 'HAVE_MASTER';\n\n    if (manifest.playlists) {\n      this.master = manifest;\n      addPropertiesToMaster(this.master, this.srcUri()); // If the initial master playlist has playlists wtih segments already resolved,\n      // then resolve URIs in advance, as they are usually done after a playlist request,\n      // which may not happen if the playlist is resolved.\n\n      manifest.playlists.forEach(function (playlist) {\n        playlist.segments = getAllSegments(playlist);\n        playlist.segments.forEach(function (segment) {\n          resolveSegmentUris(segment, playlist.resolvedUri);\n        });\n      });\n      this.trigger('loadedplaylist');\n\n      if (!this.request) {\n        // no media playlist was specifically selected so start\n        // from the first listed one\n        this.media(this.master.playlists[0]);\n      }\n\n      return;\n    } // In order to support media playlists passed in as vhs-json, the case where the uri\n    // is not provided as part of the manifest should be considered, and an appropriate\n    // default used.\n\n\n    var uri = this.srcUri() || window.location.href;\n    this.master = masterForMedia(manifest, uri);\n    this.haveMetadata({\n      playlistObject: manifest,\n      url: uri,\n      id: this.master.playlists[0].id\n    });\n    this.trigger('loadedmetadata');\n  };\n\n  return PlaylistLoader;\n}(EventTarget$1);\n/**\n * @file xhr.js\n */\n\n\nvar videojsXHR = videojs.xhr,\n    mergeOptions$1 = videojs.mergeOptions;\n\nvar callbackWrapper = function callbackWrapper(request, error, response, callback) {\n  var reqResponse = request.responseType === 'arraybuffer' ? request.response : request.responseText;\n\n  if (!error && reqResponse) {\n    request.responseTime = Date.now();\n    request.roundTripTime = request.responseTime - request.requestTime;\n    request.bytesReceived = reqResponse.byteLength || reqResponse.length;\n\n    if (!request.bandwidth) {\n      request.bandwidth = Math.floor(request.bytesReceived / request.roundTripTime * 8 * 1000);\n    }\n  }\n\n  if (response.headers) {\n    request.responseHeaders = response.headers;\n  } // videojs.xhr now uses a specific code on the error\n  // object to signal that a request has timed out instead\n  // of setting a boolean on the request object\n\n\n  if (error && error.code === 'ETIMEDOUT') {\n    request.timedout = true;\n  } // videojs.xhr no longer considers status codes outside of 200 and 0\n  // (for file uris) to be errors, but the old XHR did, so emulate that\n  // behavior. Status 206 may be used in response to byterange requests.\n\n\n  if (!error && !request.aborted && response.statusCode !== 200 && response.statusCode !== 206 && response.statusCode !== 0) {\n    error = new Error('XHR Failed with a response of: ' + (request && (reqResponse || request.responseText)));\n  }\n\n  callback(error, request);\n};\n\nvar xhrFactory = function xhrFactory() {\n  var xhr = function XhrFunction(options, callback) {\n    // Add a default timeout\n    options = mergeOptions$1({\n      timeout: 45e3\n    }, options); // Allow an optional user-specified function to modify the option\n    // object before we construct the xhr request\n\n    var beforeRequest = XhrFunction.beforeRequest || videojs.Vhs.xhr.beforeRequest;\n\n    if (beforeRequest && typeof beforeRequest === 'function') {\n      var newOptions = beforeRequest(options);\n\n      if (newOptions) {\n        options = newOptions;\n      }\n    } // Use the standard videojs.xhr() method unless `videojs.Vhs.xhr` has been overriden\n    // TODO: switch back to videojs.Vhs.xhr.name === 'XhrFunction' when we drop IE11\n\n\n    var xhrMethod = videojs.Vhs.xhr.original === true ? videojsXHR : videojs.Vhs.xhr;\n    var request = xhrMethod(options, function (error, response) {\n      return callbackWrapper(request, error, response, callback);\n    });\n    var originalAbort = request.abort;\n\n    request.abort = function () {\n      request.aborted = true;\n      return originalAbort.apply(request, arguments);\n    };\n\n    request.uri = options.uri;\n    request.requestTime = Date.now();\n    return request;\n  };\n\n  xhr.original = true;\n  return xhr;\n};\n/**\n * Turns segment byterange into a string suitable for use in\n * HTTP Range requests\n *\n * @param {Object} byterange - an object with two values defining the start and end\n *                             of a byte-range\n */\n\n\nvar byterangeStr = function byterangeStr(byterange) {\n  // `byterangeEnd` is one less than `offset + length` because the HTTP range\n  // header uses inclusive ranges\n  var byterangeEnd = byterange.offset + byterange.length - 1;\n  var byterangeStart = byterange.offset;\n  return 'bytes=' + byterangeStart + '-' + byterangeEnd;\n};\n/**\n * Defines headers for use in the xhr request for a particular segment.\n *\n * @param {Object} segment - a simplified copy of the segmentInfo object\n *                           from SegmentLoader\n */\n\n\nvar segmentXhrHeaders = function segmentXhrHeaders(segment) {\n  var headers = {};\n\n  if (segment.byterange) {\n    headers.Range = byterangeStr(segment.byterange);\n  }\n\n  return headers;\n};\n/**\n * @file bin-utils.js\n */\n\n/**\n * convert a TimeRange to text\n *\n * @param {TimeRange} range the timerange to use for conversion\n * @param {number} i the iterator on the range to convert\n * @return {string} the range in string format\n */\n\n\nvar textRange = function textRange(range, i) {\n  return range.start(i) + '-' + range.end(i);\n};\n/**\n * format a number as hex string\n *\n * @param {number} e The number\n * @param {number} i the iterator\n * @return {string} the hex formatted number as a string\n */\n\n\nvar formatHexString = function formatHexString(e, i) {\n  var value = e.toString(16);\n  return '00'.substring(0, 2 - value.length) + value + (i % 2 ? ' ' : '');\n};\n\nvar formatAsciiString = function formatAsciiString(e) {\n  if (e >= 0x20 && e < 0x7e) {\n    return String.fromCharCode(e);\n  }\n\n  return '.';\n};\n/**\n * Creates an object for sending to a web worker modifying properties that are TypedArrays\n * into a new object with seperated properties for the buffer, byteOffset, and byteLength.\n *\n * @param {Object} message\n *        Object of properties and values to send to the web worker\n * @return {Object}\n *         Modified message with TypedArray values expanded\n * @function createTransferableMessage\n */\n\n\nvar createTransferableMessage = function createTransferableMessage(message) {\n  var transferable = {};\n  Object.keys(message).forEach(function (key) {\n    var value = message[key];\n\n    if (ArrayBuffer.isView(value)) {\n      transferable[key] = {\n        bytes: value.buffer,\n        byteOffset: value.byteOffset,\n        byteLength: value.byteLength\n      };\n    } else {\n      transferable[key] = value;\n    }\n  });\n  return transferable;\n};\n/**\n * Returns a unique string identifier for a media initialization\n * segment.\n *\n * @param {Object} initSegment\n *        the init segment object.\n *\n * @return {string} the generated init segment id\n */\n\n\nvar initSegmentId = function initSegmentId(initSegment) {\n  var byterange = initSegment.byterange || {\n    length: Infinity,\n    offset: 0\n  };\n  return [byterange.length, byterange.offset, initSegment.resolvedUri].join(',');\n};\n/**\n * Returns a unique string identifier for a media segment key.\n *\n * @param {Object} key the encryption key\n * @return {string} the unique id for the media segment key.\n */\n\n\nvar segmentKeyId = function segmentKeyId(key) {\n  return key.resolvedUri;\n};\n/**\n * utils to help dump binary data to the console\n *\n * @param {Array|TypedArray} data\n *        data to dump to a string\n *\n * @return {string} the data as a hex string.\n */\n\n\nvar hexDump = function hexDump(data) {\n  var bytes = Array.prototype.slice.call(data);\n  var step = 16;\n  var result = '';\n  var hex;\n  var ascii;\n\n  for (var j = 0; j < bytes.length / step; j++) {\n    hex = bytes.slice(j * step, j * step + step).map(formatHexString).join('');\n    ascii = bytes.slice(j * step, j * step + step).map(formatAsciiString).join('');\n    result += hex + ' ' + ascii + '\\n';\n  }\n\n  return result;\n};\n\nvar tagDump = function tagDump(_ref) {\n  var bytes = _ref.bytes;\n  return hexDump(bytes);\n};\n\nvar textRanges = function textRanges(ranges) {\n  var result = '';\n  var i;\n\n  for (i = 0; i < ranges.length; i++) {\n    result += textRange(ranges, i) + ' ';\n  }\n\n  return result;\n};\n\nvar utils = /*#__PURE__*/Object.freeze({\n  __proto__: null,\n  createTransferableMessage: createTransferableMessage,\n  initSegmentId: initSegmentId,\n  segmentKeyId: segmentKeyId,\n  hexDump: hexDump,\n  tagDump: tagDump,\n  textRanges: textRanges\n}); // TODO handle fmp4 case where the timing info is accurate and doesn't involve transmux\n// 25% was arbitrarily chosen, and may need to be refined over time.\n\nvar SEGMENT_END_FUDGE_PERCENT = 0.25;\n/**\n * Converts a player time (any time that can be gotten/set from player.currentTime(),\n * e.g., any time within player.seekable().start(0) to player.seekable().end(0)) to a\n * program time (any time referencing the real world (e.g., EXT-X-PROGRAM-DATE-TIME)).\n *\n * The containing segment is required as the EXT-X-PROGRAM-DATE-TIME serves as an \"anchor\n * point\" (a point where we have a mapping from program time to player time, with player\n * time being the post transmux start of the segment).\n *\n * For more details, see [this doc](../../docs/program-time-from-player-time.md).\n *\n * @param {number} playerTime the player time\n * @param {Object} segment the segment which contains the player time\n * @return {Date} program time\n */\n\nvar playerTimeToProgramTime = function playerTimeToProgramTime(playerTime, segment) {\n  if (!segment.dateTimeObject) {\n    // Can't convert without an \"anchor point\" for the program time (i.e., a time that can\n    // be used to map the start of a segment with a real world time).\n    return null;\n  }\n\n  var transmuxerPrependedSeconds = segment.videoTimingInfo.transmuxerPrependedSeconds;\n  var transmuxedStart = segment.videoTimingInfo.transmuxedPresentationStart; // get the start of the content from before old content is prepended\n\n  var startOfSegment = transmuxedStart + transmuxerPrependedSeconds;\n  var offsetFromSegmentStart = playerTime - startOfSegment;\n  return new Date(segment.dateTimeObject.getTime() + offsetFromSegmentStart * 1000);\n};\n\nvar originalSegmentVideoDuration = function originalSegmentVideoDuration(videoTimingInfo) {\n  return videoTimingInfo.transmuxedPresentationEnd - videoTimingInfo.transmuxedPresentationStart - videoTimingInfo.transmuxerPrependedSeconds;\n};\n/**\n * Finds a segment that contains the time requested given as an ISO-8601 string. The\n * returned segment might be an estimate or an accurate match.\n *\n * @param {string} programTime The ISO-8601 programTime to find a match for\n * @param {Object} playlist A playlist object to search within\n */\n\n\nvar findSegmentForProgramTime = function findSegmentForProgramTime(programTime, playlist) {\n  // Assumptions:\n  //  - verifyProgramDateTimeTags has already been run\n  //  - live streams have been started\n  var dateTimeObject;\n\n  try {\n    dateTimeObject = new Date(programTime);\n  } catch (e) {\n    return null;\n  }\n\n  if (!playlist || !playlist.segments || playlist.segments.length === 0) {\n    return null;\n  }\n\n  var segment = playlist.segments[0];\n\n  if (dateTimeObject < segment.dateTimeObject) {\n    // Requested time is before stream start.\n    return null;\n  }\n\n  for (var i = 0; i < playlist.segments.length - 1; i++) {\n    segment = playlist.segments[i];\n    var nextSegmentStart = playlist.segments[i + 1].dateTimeObject;\n\n    if (dateTimeObject < nextSegmentStart) {\n      break;\n    }\n  }\n\n  var lastSegment = playlist.segments[playlist.segments.length - 1];\n  var lastSegmentStart = lastSegment.dateTimeObject;\n  var lastSegmentDuration = lastSegment.videoTimingInfo ? originalSegmentVideoDuration(lastSegment.videoTimingInfo) : lastSegment.duration + lastSegment.duration * SEGMENT_END_FUDGE_PERCENT;\n  var lastSegmentEnd = new Date(lastSegmentStart.getTime() + lastSegmentDuration * 1000);\n\n  if (dateTimeObject > lastSegmentEnd) {\n    // Beyond the end of the stream, or our best guess of the end of the stream.\n    return null;\n  }\n\n  if (dateTimeObject > lastSegmentStart) {\n    segment = lastSegment;\n  }\n\n  return {\n    segment: segment,\n    estimatedStart: segment.videoTimingInfo ? segment.videoTimingInfo.transmuxedPresentationStart : Playlist.duration(playlist, playlist.mediaSequence + playlist.segments.indexOf(segment)),\n    // Although, given that all segments have accurate date time objects, the segment\n    // selected should be accurate, unless the video has been transmuxed at some point\n    // (determined by the presence of the videoTimingInfo object), the segment's \"player\n    // time\" (the start time in the player) can't be considered accurate.\n    type: segment.videoTimingInfo ? 'accurate' : 'estimate'\n  };\n};\n/**\n * Finds a segment that contains the given player time(in seconds).\n *\n * @param {number} time The player time to find a match for\n * @param {Object} playlist A playlist object to search within\n */\n\n\nvar findSegmentForPlayerTime = function findSegmentForPlayerTime(time, playlist) {\n  // Assumptions:\n  // - there will always be a segment.duration\n  // - we can start from zero\n  // - segments are in time order\n  if (!playlist || !playlist.segments || playlist.segments.length === 0) {\n    return null;\n  }\n\n  var segmentEnd = 0;\n  var segment;\n\n  for (var i = 0; i < playlist.segments.length; i++) {\n    segment = playlist.segments[i]; // videoTimingInfo is set after the segment is downloaded and transmuxed, and\n    // should contain the most accurate values we have for the segment's player times.\n    //\n    // Use the accurate transmuxedPresentationEnd value if it is available, otherwise fall\n    // back to an estimate based on the manifest derived (inaccurate) segment.duration, to\n    // calculate an end value.\n\n    segmentEnd = segment.videoTimingInfo ? segment.videoTimingInfo.transmuxedPresentationEnd : segmentEnd + segment.duration;\n\n    if (time <= segmentEnd) {\n      break;\n    }\n  }\n\n  var lastSegment = playlist.segments[playlist.segments.length - 1];\n\n  if (lastSegment.videoTimingInfo && lastSegment.videoTimingInfo.transmuxedPresentationEnd < time) {\n    // The time requested is beyond the stream end.\n    return null;\n  }\n\n  if (time > segmentEnd) {\n    // The time is within or beyond the last segment.\n    //\n    // Check to see if the time is beyond a reasonable guess of the end of the stream.\n    if (time > segmentEnd + lastSegment.duration * SEGMENT_END_FUDGE_PERCENT) {\n      // Technically, because the duration value is only an estimate, the time may still\n      // exist in the last segment, however, there isn't enough information to make even\n      // a reasonable estimate.\n      return null;\n    }\n\n    segment = lastSegment;\n  }\n\n  return {\n    segment: segment,\n    estimatedStart: segment.videoTimingInfo ? segment.videoTimingInfo.transmuxedPresentationStart : segmentEnd - segment.duration,\n    // Because videoTimingInfo is only set after transmux, it is the only way to get\n    // accurate timing values.\n    type: segment.videoTimingInfo ? 'accurate' : 'estimate'\n  };\n};\n/**\n * Gives the offset of the comparisonTimestamp from the programTime timestamp in seconds.\n * If the offset returned is positive, the programTime occurs after the\n * comparisonTimestamp.\n * If the offset is negative, the programTime occurs before the comparisonTimestamp.\n *\n * @param {string} comparisonTimeStamp An ISO-8601 timestamp to compare against\n * @param {string} programTime The programTime as an ISO-8601 string\n * @return {number} offset\n */\n\n\nvar getOffsetFromTimestamp = function getOffsetFromTimestamp(comparisonTimeStamp, programTime) {\n  var segmentDateTime;\n  var programDateTime;\n\n  try {\n    segmentDateTime = new Date(comparisonTimeStamp);\n    programDateTime = new Date(programTime);\n  } catch (e) {// TODO handle error\n  }\n\n  var segmentTimeEpoch = segmentDateTime.getTime();\n  var programTimeEpoch = programDateTime.getTime();\n  return (programTimeEpoch - segmentTimeEpoch) / 1000;\n};\n/**\n * Checks that all segments in this playlist have programDateTime tags.\n *\n * @param {Object} playlist A playlist object\n */\n\n\nvar verifyProgramDateTimeTags = function verifyProgramDateTimeTags(playlist) {\n  if (!playlist.segments || playlist.segments.length === 0) {\n    return false;\n  }\n\n  for (var i = 0; i < playlist.segments.length; i++) {\n    var segment = playlist.segments[i];\n\n    if (!segment.dateTimeObject) {\n      return false;\n    }\n  }\n\n  return true;\n};\n/**\n * Returns the programTime of the media given a playlist and a playerTime.\n * The playlist must have programDateTime tags for a programDateTime tag to be returned.\n * If the segments containing the time requested have not been buffered yet, an estimate\n * may be returned to the callback.\n *\n * @param {Object} args\n * @param {Object} args.playlist A playlist object to search within\n * @param {number} time A playerTime in seconds\n * @param {Function} callback(err, programTime)\n * @return {string} err.message A detailed error message\n * @return {Object} programTime\n * @return {number} programTime.mediaSeconds The streamTime in seconds\n * @return {string} programTime.programDateTime The programTime as an ISO-8601 String\n */\n\n\nvar getProgramTime = function getProgramTime(_ref) {\n  var playlist = _ref.playlist,\n      _ref$time = _ref.time,\n      time = _ref$time === void 0 ? undefined : _ref$time,\n      callback = _ref.callback;\n\n  if (!callback) {\n    throw new Error('getProgramTime: callback must be provided');\n  }\n\n  if (!playlist || time === undefined) {\n    return callback({\n      message: 'getProgramTime: playlist and time must be provided'\n    });\n  }\n\n  var matchedSegment = findSegmentForPlayerTime(time, playlist);\n\n  if (!matchedSegment) {\n    return callback({\n      message: 'valid programTime was not found'\n    });\n  }\n\n  if (matchedSegment.type === 'estimate') {\n    return callback({\n      message: 'Accurate programTime could not be determined.' + ' Please seek to e.seekTime and try again',\n      seekTime: matchedSegment.estimatedStart\n    });\n  }\n\n  var programTimeObject = {\n    mediaSeconds: time\n  };\n  var programTime = playerTimeToProgramTime(time, matchedSegment.segment);\n\n  if (programTime) {\n    programTimeObject.programDateTime = programTime.toISOString();\n  }\n\n  return callback(null, programTimeObject);\n};\n/**\n * Seeks in the player to a time that matches the given programTime ISO-8601 string.\n *\n * @param {Object} args\n * @param {string} args.programTime A programTime to seek to as an ISO-8601 String\n * @param {Object} args.playlist A playlist to look within\n * @param {number} args.retryCount The number of times to try for an accurate seek. Default is 2.\n * @param {Function} args.seekTo A method to perform a seek\n * @param {boolean} args.pauseAfterSeek Whether to end in a paused state after seeking. Default is true.\n * @param {Object} args.tech The tech to seek on\n * @param {Function} args.callback(err, newTime) A callback to return the new time to\n * @return {string} err.message A detailed error message\n * @return {number} newTime The exact time that was seeked to in seconds\n */\n\n\nvar seekToProgramTime = function seekToProgramTime(_ref2) {\n  var programTime = _ref2.programTime,\n      playlist = _ref2.playlist,\n      _ref2$retryCount = _ref2.retryCount,\n      retryCount = _ref2$retryCount === void 0 ? 2 : _ref2$retryCount,\n      seekTo = _ref2.seekTo,\n      _ref2$pauseAfterSeek = _ref2.pauseAfterSeek,\n      pauseAfterSeek = _ref2$pauseAfterSeek === void 0 ? true : _ref2$pauseAfterSeek,\n      tech = _ref2.tech,\n      callback = _ref2.callback;\n\n  if (!callback) {\n    throw new Error('seekToProgramTime: callback must be provided');\n  }\n\n  if (typeof programTime === 'undefined' || !playlist || !seekTo) {\n    return callback({\n      message: 'seekToProgramTime: programTime, seekTo and playlist must be provided'\n    });\n  }\n\n  if (!playlist.endList && !tech.hasStarted_) {\n    return callback({\n      message: 'player must be playing a live stream to start buffering'\n    });\n  }\n\n  if (!verifyProgramDateTimeTags(playlist)) {\n    return callback({\n      message: 'programDateTime tags must be provided in the manifest ' + playlist.resolvedUri\n    });\n  }\n\n  var matchedSegment = findSegmentForProgramTime(programTime, playlist); // no match\n\n  if (!matchedSegment) {\n    return callback({\n      message: programTime + \" was not found in the stream\"\n    });\n  }\n\n  var segment = matchedSegment.segment;\n  var mediaOffset = getOffsetFromTimestamp(segment.dateTimeObject, programTime);\n\n  if (matchedSegment.type === 'estimate') {\n    // we've run out of retries\n    if (retryCount === 0) {\n      return callback({\n        message: programTime + \" is not buffered yet. Try again\"\n      });\n    }\n\n    seekTo(matchedSegment.estimatedStart + mediaOffset);\n    tech.one('seeked', function () {\n      seekToProgramTime({\n        programTime: programTime,\n        playlist: playlist,\n        retryCount: retryCount - 1,\n        seekTo: seekTo,\n        pauseAfterSeek: pauseAfterSeek,\n        tech: tech,\n        callback: callback\n      });\n    });\n    return;\n  } // Since the segment.start value is determined from the buffered end or ending time\n  // of the prior segment, the seekToTime doesn't need to account for any transmuxer\n  // modifications.\n\n\n  var seekToTime = segment.start + mediaOffset;\n\n  var seekedCallback = function seekedCallback() {\n    return callback(null, tech.currentTime());\n  }; // listen for seeked event\n\n\n  tech.one('seeked', seekedCallback); // pause before seeking as video.js will restore this state\n\n  if (pauseAfterSeek) {\n    tech.pause();\n  }\n\n  seekTo(seekToTime);\n}; // which will only happen if the request is complete.\n\n\nvar callbackOnCompleted = function callbackOnCompleted(request, cb) {\n  if (request.readyState === 4) {\n    return cb();\n  }\n\n  return;\n};\n\nvar containerRequest = function containerRequest(uri, xhr, cb) {\n  var bytes = [];\n  var id3Offset;\n  var finished = false;\n\n  var endRequestAndCallback = function endRequestAndCallback(err, req, type, _bytes) {\n    req.abort();\n    finished = true;\n    return cb(err, req, type, _bytes);\n  };\n\n  var progressListener = function progressListener(error, request) {\n    if (finished) {\n      return;\n    }\n\n    if (error) {\n      return endRequestAndCallback(error, request, '', bytes);\n    } // grap the new part of content that was just downloaded\n\n\n    var newPart = request.responseText.substring(bytes && bytes.byteLength || 0, request.responseText.length); // add that onto bytes\n\n    bytes = concatTypedArrays(bytes, stringToBytes(newPart, true));\n    id3Offset = id3Offset || getId3Offset(bytes); // we need at least 10 bytes to determine a type\n    // or we need at least two bytes after an id3Offset\n\n    if (bytes.length < 10 || id3Offset && bytes.length < id3Offset + 2) {\n      return callbackOnCompleted(request, function () {\n        return endRequestAndCallback(error, request, '', bytes);\n      });\n    }\n\n    var type = detectContainerForBytes(bytes); // if this looks like a ts segment but we don't have enough data\n    // to see the second sync byte, wait until we have enough data\n    // before declaring it ts\n\n    if (type === 'ts' && bytes.length < 188) {\n      return callbackOnCompleted(request, function () {\n        return endRequestAndCallback(error, request, '', bytes);\n      });\n    } // this may be an unsynced ts segment\n    // wait for 376 bytes before detecting no container\n\n\n    if (!type && bytes.length < 376) {\n      return callbackOnCompleted(request, function () {\n        return endRequestAndCallback(error, request, '', bytes);\n      });\n    }\n\n    return endRequestAndCallback(null, request, type, bytes);\n  };\n\n  var options = {\n    uri: uri,\n    beforeSend: function beforeSend(request) {\n      // this forces the browser to pass the bytes to us unprocessed\n      request.overrideMimeType('text/plain; charset=x-user-defined');\n      request.addEventListener('progress', function (_ref) {\n        _ref.total;\n        _ref.loaded;\n        return callbackWrapper(request, null, {\n          statusCode: request.status\n        }, progressListener);\n      });\n    }\n  };\n  var request = xhr(options, function (error, response) {\n    return callbackWrapper(request, error, response, progressListener);\n  });\n  return request;\n};\n\nvar EventTarget = videojs.EventTarget,\n    mergeOptions = videojs.mergeOptions;\n\nvar dashPlaylistUnchanged = function dashPlaylistUnchanged(a, b) {\n  if (!isPlaylistUnchanged(a, b)) {\n    return false;\n  } // for dash the above check will often return true in scenarios where\n  // the playlist actually has changed because mediaSequence isn't a\n  // dash thing, and we often set it to 1. So if the playlists have the same amount\n  // of segments we return true.\n  // So for dash we need to make sure that the underlying segments are different.\n  // if sidx changed then the playlists are different.\n\n\n  if (a.sidx && b.sidx && (a.sidx.offset !== b.sidx.offset || a.sidx.length !== b.sidx.length)) {\n    return false;\n  } else if (!a.sidx && b.sidx || a.sidx && !b.sidx) {\n    return false;\n  } // one or the other does not have segments\n  // there was a change.\n\n\n  if (a.segments && !b.segments || !a.segments && b.segments) {\n    return false;\n  } // neither has segments nothing changed\n\n\n  if (!a.segments && !b.segments) {\n    return true;\n  } // check segments themselves\n\n\n  for (var i = 0; i < a.segments.length; i++) {\n    var aSegment = a.segments[i];\n    var bSegment = b.segments[i]; // if uris are different between segments there was a change\n\n    if (aSegment.uri !== bSegment.uri) {\n      return false;\n    } // neither segment has a byterange, there will be no byterange change.\n\n\n    if (!aSegment.byterange && !bSegment.byterange) {\n      continue;\n    }\n\n    var aByterange = aSegment.byterange;\n    var bByterange = bSegment.byterange; // if byterange only exists on one of the segments, there was a change.\n\n    if (aByterange && !bByterange || !aByterange && bByterange) {\n      return false;\n    } // if both segments have byterange with different offsets, there was a change.\n\n\n    if (aByterange.offset !== bByterange.offset || aByterange.length !== bByterange.length) {\n      return false;\n    }\n  } // if everything was the same with segments, this is the same playlist.\n\n\n  return true;\n};\n/**\n * Parses the master XML string and updates playlist URI references.\n *\n * @param {Object} config\n *        Object of arguments\n * @param {string} config.masterXml\n *        The mpd XML\n * @param {string} config.srcUrl\n *        The mpd URL\n * @param {Date} config.clientOffset\n *         A time difference between server and client\n * @param {Object} config.sidxMapping\n *        SIDX mappings for moof/mdat URIs and byte ranges\n * @return {Object}\n *         The parsed mpd manifest object\n */\n\n\nvar parseMasterXml = function parseMasterXml(_ref) {\n  var masterXml = _ref.masterXml,\n      srcUrl = _ref.srcUrl,\n      clientOffset = _ref.clientOffset,\n      sidxMapping = _ref.sidxMapping;\n  var master = parse(masterXml, {\n    manifestUri: srcUrl,\n    clientOffset: clientOffset,\n    sidxMapping: sidxMapping\n  });\n  addPropertiesToMaster(master, srcUrl);\n  return master;\n};\n/**\n * Returns a new master manifest that is the result of merging an updated master manifest\n * into the original version.\n *\n * @param {Object} oldMaster\n *        The old parsed mpd object\n * @param {Object} newMaster\n *        The updated parsed mpd object\n * @return {Object}\n *         A new object representing the original master manifest with the updated media\n *         playlists merged in\n */\n\n\nvar updateMaster = function updateMaster(oldMaster, newMaster, sidxMapping) {\n  var noChanges = true;\n  var update = mergeOptions(oldMaster, {\n    // These are top level properties that can be updated\n    duration: newMaster.duration,\n    minimumUpdatePeriod: newMaster.minimumUpdatePeriod\n  }); // First update the playlists in playlist list\n\n  for (var i = 0; i < newMaster.playlists.length; i++) {\n    var playlist = newMaster.playlists[i];\n\n    if (playlist.sidx) {\n      var sidxKey = generateSidxKey(playlist.sidx); // add sidx segments to the playlist if we have all the sidx info already\n\n      if (sidxMapping && sidxMapping[sidxKey] && sidxMapping[sidxKey].sidx) {\n        addSidxSegmentsToPlaylist(playlist, sidxMapping[sidxKey].sidx, playlist.sidx.resolvedUri);\n      }\n    }\n\n    var playlistUpdate = updateMaster$1(update, playlist, dashPlaylistUnchanged);\n\n    if (playlistUpdate) {\n      update = playlistUpdate;\n      noChanges = false;\n    }\n  } // Then update media group playlists\n\n\n  forEachMediaGroup(newMaster, function (properties, type, group, label) {\n    if (properties.playlists && properties.playlists.length) {\n      var id = properties.playlists[0].id;\n\n      var _playlistUpdate = updateMaster$1(update, properties.playlists[0], dashPlaylistUnchanged);\n\n      if (_playlistUpdate) {\n        update = _playlistUpdate; // update the playlist reference within media groups\n\n        update.mediaGroups[type][group][label].playlists[0] = update.playlists[id];\n        noChanges = false;\n      }\n    }\n  });\n\n  if (newMaster.minimumUpdatePeriod !== oldMaster.minimumUpdatePeriod) {\n    noChanges = false;\n  }\n\n  if (noChanges) {\n    return null;\n  }\n\n  return update;\n}; // SIDX should be equivalent if the URI and byteranges of the SIDX match.\n// If the SIDXs have maps, the two maps should match,\n// both `a` and `b` missing SIDXs is considered matching.\n// If `a` or `b` but not both have a map, they aren't matching.\n\n\nvar equivalentSidx = function equivalentSidx(a, b) {\n  var neitherMap = Boolean(!a.map && !b.map);\n  var equivalentMap = neitherMap || Boolean(a.map && b.map && a.map.byterange.offset === b.map.byterange.offset && a.map.byterange.length === b.map.byterange.length);\n  return equivalentMap && a.uri === b.uri && a.byterange.offset === b.byterange.offset && a.byterange.length === b.byterange.length;\n}; // exported for testing\n\n\nvar compareSidxEntry = function compareSidxEntry(playlists, oldSidxMapping) {\n  var newSidxMapping = {};\n\n  for (var id in playlists) {\n    var playlist = playlists[id];\n    var currentSidxInfo = playlist.sidx;\n\n    if (currentSidxInfo) {\n      var key = generateSidxKey(currentSidxInfo);\n\n      if (!oldSidxMapping[key]) {\n        break;\n      }\n\n      var savedSidxInfo = oldSidxMapping[key].sidxInfo;\n\n      if (equivalentSidx(savedSidxInfo, currentSidxInfo)) {\n        newSidxMapping[key] = oldSidxMapping[key];\n      }\n    }\n  }\n\n  return newSidxMapping;\n};\n/**\n *  A function that filters out changed items as they need to be requested separately.\n *\n *  The method is exported for testing\n *\n *  @param {Object} master the parsed mpd XML returned via mpd-parser\n *  @param {Object} oldSidxMapping the SIDX to compare against\n */\n\n\nvar filterChangedSidxMappings = function filterChangedSidxMappings(master, oldSidxMapping) {\n  var videoSidx = compareSidxEntry(master.playlists, oldSidxMapping);\n  var mediaGroupSidx = videoSidx;\n  forEachMediaGroup(master, function (properties, mediaType, groupKey, labelKey) {\n    if (properties.playlists && properties.playlists.length) {\n      var playlists = properties.playlists;\n      mediaGroupSidx = mergeOptions(mediaGroupSidx, compareSidxEntry(playlists, oldSidxMapping));\n    }\n  });\n  return mediaGroupSidx;\n};\n\nvar DashPlaylistLoader = /*#__PURE__*/function (_EventTarget) {\n  _inheritsLoose(DashPlaylistLoader, _EventTarget); // DashPlaylistLoader must accept either a src url or a playlist because subsequent\n  // playlist loader setups from media groups will expect to be able to pass a playlist\n  // (since there aren't external URLs to media playlists with DASH)\n\n\n  function DashPlaylistLoader(srcUrlOrPlaylist, vhs, options, masterPlaylistLoader) {\n    var _this;\n\n    if (options === void 0) {\n      options = {};\n    }\n\n    _this = _EventTarget.call(this) || this;\n    _this.masterPlaylistLoader_ = masterPlaylistLoader || _assertThisInitialized(_this);\n\n    if (!masterPlaylistLoader) {\n      _this.isMaster_ = true;\n    }\n\n    var _options = options,\n        _options$withCredenti = _options.withCredentials,\n        withCredentials = _options$withCredenti === void 0 ? false : _options$withCredenti,\n        _options$handleManife = _options.handleManifestRedirects,\n        handleManifestRedirects = _options$handleManife === void 0 ? false : _options$handleManife;\n    _this.vhs_ = vhs;\n    _this.withCredentials = withCredentials;\n    _this.handleManifestRedirects = handleManifestRedirects;\n\n    if (!srcUrlOrPlaylist) {\n      throw new Error('A non-empty playlist URL or object is required');\n    } // event naming?\n\n\n    _this.on('minimumUpdatePeriod', function () {\n      _this.refreshXml_();\n    }); // live playlist staleness timeout\n\n\n    _this.on('mediaupdatetimeout', function () {\n      _this.refreshMedia_(_this.media().id);\n    });\n\n    _this.state = 'HAVE_NOTHING';\n    _this.loadedPlaylists_ = {};\n    _this.logger_ = logger('DashPlaylistLoader'); // initialize the loader state\n    // The masterPlaylistLoader will be created with a string\n\n    if (_this.isMaster_) {\n      _this.masterPlaylistLoader_.srcUrl = srcUrlOrPlaylist; // TODO: reset sidxMapping between period changes\n      // once multi-period is refactored\n\n      _this.masterPlaylistLoader_.sidxMapping_ = {};\n    } else {\n      _this.childPlaylist_ = srcUrlOrPlaylist;\n    }\n\n    return _this;\n  }\n\n  var _proto = DashPlaylistLoader.prototype;\n\n  _proto.requestErrored_ = function requestErrored_(err, request, startingState) {\n    // disposed\n    if (!this.request) {\n      return true;\n    } // pending request is cleared\n\n\n    this.request = null;\n\n    if (err) {\n      // use the provided error object or create one\n      // based on the request/response\n      this.error = typeof err === 'object' && !(err instanceof Error) ? err : {\n        status: request.status,\n        message: 'DASH request error at URL: ' + request.uri,\n        response: request.response,\n        // MEDIA_ERR_NETWORK\n        code: 2\n      };\n\n      if (startingState) {\n        this.state = startingState;\n      }\n\n      this.trigger('error');\n      return true;\n    }\n  }\n  /**\n   * Verify that the container of the sidx segment can be parsed\n   * and if it can, get and parse that segment.\n   */\n  ;\n\n  _proto.addSidxSegments_ = function addSidxSegments_(playlist, startingState, cb) {\n    var _this2 = this;\n\n    var sidxKey = playlist.sidx && generateSidxKey(playlist.sidx); // playlist lacks sidx or sidx segments were added to this playlist already.\n\n    if (!playlist.sidx || !sidxKey || this.masterPlaylistLoader_.sidxMapping_[sidxKey]) {\n      // keep this function async\n      this.mediaRequest_ = window.setTimeout(function () {\n        return cb(false);\n      }, 0);\n      return;\n    } // resolve the segment URL relative to the playlist\n\n\n    var uri = resolveManifestRedirect(this.handleManifestRedirects, playlist.sidx.resolvedUri);\n\n    var fin = function fin(err, request) {\n      if (_this2.requestErrored_(err, request, startingState)) {\n        return;\n      }\n\n      var sidxMapping = _this2.masterPlaylistLoader_.sidxMapping_;\n      var sidx;\n\n      try {\n        sidx = parseSidx(toUint8(request.response).subarray(8));\n      } catch (e) {\n        // sidx parsing failed.\n        _this2.requestErrored_(e, request, startingState);\n\n        return;\n      }\n\n      sidxMapping[sidxKey] = {\n        sidxInfo: playlist.sidx,\n        sidx: sidx\n      };\n      addSidxSegmentsToPlaylist(playlist, sidx, playlist.sidx.resolvedUri);\n      return cb(true);\n    };\n\n    this.request = containerRequest(uri, this.vhs_.xhr, function (err, request, container, bytes) {\n      if (err) {\n        return fin(err, request);\n      }\n\n      if (!container || container !== 'mp4') {\n        return fin({\n          status: request.status,\n          message: \"Unsupported \" + (container || 'unknown') + \" container type for sidx segment at URL: \" + uri,\n          // response is just bytes in this case\n          // but we really don't want to return that.\n          response: '',\n          playlist: playlist,\n          internal: true,\n          blacklistDuration: Infinity,\n          // MEDIA_ERR_NETWORK\n          code: 2\n        }, request);\n      } // if we already downloaded the sidx bytes in the container request, use them\n\n\n      var _playlist$sidx$bytera = playlist.sidx.byterange,\n          offset = _playlist$sidx$bytera.offset,\n          length = _playlist$sidx$bytera.length;\n\n      if (bytes.length >= length + offset) {\n        return fin(err, {\n          response: bytes.subarray(offset, offset + length),\n          status: request.status,\n          uri: request.uri\n        });\n      } // otherwise request sidx bytes\n\n\n      _this2.request = _this2.vhs_.xhr({\n        uri: uri,\n        responseType: 'arraybuffer',\n        headers: segmentXhrHeaders({\n          byterange: playlist.sidx.byterange\n        })\n      }, fin);\n    });\n  };\n\n  _proto.dispose = function dispose() {\n    this.trigger('dispose');\n    this.stopRequest();\n    this.loadedPlaylists_ = {};\n    window.clearTimeout(this.minimumUpdatePeriodTimeout_);\n    window.clearTimeout(this.mediaRequest_);\n    window.clearTimeout(this.mediaUpdateTimeout);\n    this.mediaUpdateTimeout = null;\n    this.mediaRequest_ = null;\n    this.minimumUpdatePeriodTimeout_ = null;\n\n    if (this.masterPlaylistLoader_.createMupOnMedia_) {\n      this.off('loadedmetadata', this.masterPlaylistLoader_.createMupOnMedia_);\n      this.masterPlaylistLoader_.createMupOnMedia_ = null;\n    }\n\n    this.off();\n  };\n\n  _proto.hasPendingRequest = function hasPendingRequest() {\n    return this.request || this.mediaRequest_;\n  };\n\n  _proto.stopRequest = function stopRequest() {\n    if (this.request) {\n      var oldRequest = this.request;\n      this.request = null;\n      oldRequest.onreadystatechange = null;\n      oldRequest.abort();\n    }\n  };\n\n  _proto.media = function media(playlist) {\n    var _this3 = this; // getter\n\n\n    if (!playlist) {\n      return this.media_;\n    } // setter\n\n\n    if (this.state === 'HAVE_NOTHING') {\n      throw new Error('Cannot switch media playlist from ' + this.state);\n    }\n\n    var startingState = this.state; // find the playlist object if the target playlist has been specified by URI\n\n    if (typeof playlist === 'string') {\n      if (!this.masterPlaylistLoader_.master.playlists[playlist]) {\n        throw new Error('Unknown playlist URI: ' + playlist);\n      }\n\n      playlist = this.masterPlaylistLoader_.master.playlists[playlist];\n    }\n\n    var mediaChange = !this.media_ || playlist.id !== this.media_.id; // switch to previously loaded playlists immediately\n\n    if (mediaChange && this.loadedPlaylists_[playlist.id] && this.loadedPlaylists_[playlist.id].endList) {\n      this.state = 'HAVE_METADATA';\n      this.media_ = playlist; // trigger media change if the active media has been updated\n\n      if (mediaChange) {\n        this.trigger('mediachanging');\n        this.trigger('mediachange');\n      }\n\n      return;\n    } // switching to the active playlist is a no-op\n\n\n    if (!mediaChange) {\n      return;\n    } // switching from an already loaded playlist\n\n\n    if (this.media_) {\n      this.trigger('mediachanging');\n    }\n\n    this.addSidxSegments_(playlist, startingState, function (sidxChanged) {\n      // everything is ready just continue to haveMetadata\n      _this3.haveMetadata({\n        startingState: startingState,\n        playlist: playlist\n      });\n    });\n  };\n\n  _proto.haveMetadata = function haveMetadata(_ref2) {\n    var startingState = _ref2.startingState,\n        playlist = _ref2.playlist;\n    this.state = 'HAVE_METADATA';\n    this.loadedPlaylists_[playlist.id] = playlist;\n    this.mediaRequest_ = null; // This will trigger loadedplaylist\n\n    this.refreshMedia_(playlist.id); // fire loadedmetadata the first time a media playlist is loaded\n    // to resolve setup of media groups\n\n    if (startingState === 'HAVE_MASTER') {\n      this.trigger('loadedmetadata');\n    } else {\n      // trigger media change if the active media has been updated\n      this.trigger('mediachange');\n    }\n  };\n\n  _proto.pause = function pause() {\n    if (this.masterPlaylistLoader_.createMupOnMedia_) {\n      this.off('loadedmetadata', this.masterPlaylistLoader_.createMupOnMedia_);\n      this.masterPlaylistLoader_.createMupOnMedia_ = null;\n    }\n\n    this.stopRequest();\n    window.clearTimeout(this.mediaUpdateTimeout);\n    this.mediaUpdateTimeout = null;\n\n    if (this.isMaster_) {\n      window.clearTimeout(this.masterPlaylistLoader_.minimumUpdatePeriodTimeout_);\n      this.masterPlaylistLoader_.minimumUpdatePeriodTimeout_ = null;\n    }\n\n    if (this.state === 'HAVE_NOTHING') {\n      // If we pause the loader before any data has been retrieved, its as if we never\n      // started, so reset to an unstarted state.\n      this.started = false;\n    }\n  };\n\n  _proto.load = function load(isFinalRendition) {\n    var _this4 = this;\n\n    window.clearTimeout(this.mediaUpdateTimeout);\n    this.mediaUpdateTimeout = null;\n    var media = this.media();\n\n    if (isFinalRendition) {\n      var delay = media ? media.targetDuration / 2 * 1000 : 5 * 1000;\n      this.mediaUpdateTimeout = window.setTimeout(function () {\n        return _this4.load();\n      }, delay);\n      return;\n    } // because the playlists are internal to the manifest, load should either load the\n    // main manifest, or do nothing but trigger an event\n\n\n    if (!this.started) {\n      this.start();\n      return;\n    }\n\n    if (media && !media.endList) {\n      // Check to see if this is the master loader and the MUP was cleared (this happens\n      // when the loader was paused). `media` should be set at this point since one is always\n      // set during `start()`.\n      if (this.isMaster_ && !this.minimumUpdatePeriodTimeout_) {\n        // Trigger minimumUpdatePeriod to refresh the master manifest\n        this.trigger('minimumUpdatePeriod'); // Since there was no prior minimumUpdatePeriodTimeout it should be recreated\n\n        this.updateMinimumUpdatePeriodTimeout_();\n      }\n\n      this.trigger('mediaupdatetimeout');\n    } else {\n      this.trigger('loadedplaylist');\n    }\n  };\n\n  _proto.start = function start() {\n    var _this5 = this;\n\n    this.started = true; // We don't need to request the master manifest again\n    // Call this asynchronously to match the xhr request behavior below\n\n    if (!this.isMaster_) {\n      this.mediaRequest_ = window.setTimeout(function () {\n        return _this5.haveMaster_();\n      }, 0);\n      return;\n    }\n\n    this.requestMaster_(function (req, masterChanged) {\n      _this5.haveMaster_();\n\n      if (!_this5.hasPendingRequest() && !_this5.media_) {\n        _this5.media(_this5.masterPlaylistLoader_.master.playlists[0]);\n      }\n    });\n  };\n\n  _proto.requestMaster_ = function requestMaster_(cb) {\n    var _this6 = this;\n\n    this.request = this.vhs_.xhr({\n      uri: this.masterPlaylistLoader_.srcUrl,\n      withCredentials: this.withCredentials\n    }, function (error, req) {\n      if (_this6.requestErrored_(error, req)) {\n        if (_this6.state === 'HAVE_NOTHING') {\n          _this6.started = false;\n        }\n\n        return;\n      }\n\n      var masterChanged = req.responseText !== _this6.masterPlaylistLoader_.masterXml_;\n      _this6.masterPlaylistLoader_.masterXml_ = req.responseText;\n\n      if (req.responseHeaders && req.responseHeaders.date) {\n        _this6.masterLoaded_ = Date.parse(req.responseHeaders.date);\n      } else {\n        _this6.masterLoaded_ = Date.now();\n      }\n\n      _this6.masterPlaylistLoader_.srcUrl = resolveManifestRedirect(_this6.handleManifestRedirects, _this6.masterPlaylistLoader_.srcUrl, req);\n\n      if (masterChanged) {\n        _this6.handleMaster_();\n\n        _this6.syncClientServerClock_(function () {\n          return cb(req, masterChanged);\n        });\n\n        return;\n      }\n\n      return cb(req, masterChanged);\n    });\n  }\n  /**\n   * Parses the master xml for UTCTiming node to sync the client clock to the server\n   * clock. If the UTCTiming node requires a HEAD or GET request, that request is made.\n   *\n   * @param {Function} done\n   *        Function to call when clock sync has completed\n   */\n  ;\n\n  _proto.syncClientServerClock_ = function syncClientServerClock_(done) {\n    var _this7 = this;\n\n    var utcTiming = parseUTCTiming(this.masterPlaylistLoader_.masterXml_); // No UTCTiming element found in the mpd. Use Date header from mpd request as the\n    // server clock\n\n    if (utcTiming === null) {\n      this.masterPlaylistLoader_.clientOffset_ = this.masterLoaded_ - Date.now();\n      return done();\n    }\n\n    if (utcTiming.method === 'DIRECT') {\n      this.masterPlaylistLoader_.clientOffset_ = utcTiming.value - Date.now();\n      return done();\n    }\n\n    this.request = this.vhs_.xhr({\n      uri: resolveUrl(this.masterPlaylistLoader_.srcUrl, utcTiming.value),\n      method: utcTiming.method,\n      withCredentials: this.withCredentials\n    }, function (error, req) {\n      // disposed\n      if (!_this7.request) {\n        return;\n      }\n\n      if (error) {\n        // sync request failed, fall back to using date header from mpd\n        // TODO: log warning\n        _this7.masterPlaylistLoader_.clientOffset_ = _this7.masterLoaded_ - Date.now();\n        return done();\n      }\n\n      var serverTime;\n\n      if (utcTiming.method === 'HEAD') {\n        if (!req.responseHeaders || !req.responseHeaders.date) {\n          // expected date header not preset, fall back to using date header from mpd\n          // TODO: log warning\n          serverTime = _this7.masterLoaded_;\n        } else {\n          serverTime = Date.parse(req.responseHeaders.date);\n        }\n      } else {\n        serverTime = Date.parse(req.responseText);\n      }\n\n      _this7.masterPlaylistLoader_.clientOffset_ = serverTime - Date.now();\n      done();\n    });\n  };\n\n  _proto.haveMaster_ = function haveMaster_() {\n    this.state = 'HAVE_MASTER';\n\n    if (this.isMaster_) {\n      // We have the master playlist at this point, so\n      // trigger this to allow MasterPlaylistController\n      // to make an initial playlist selection\n      this.trigger('loadedplaylist');\n    } else if (!this.media_) {\n      // no media playlist was specifically selected so select\n      // the one the child playlist loader was created with\n      this.media(this.childPlaylist_);\n    }\n  };\n\n  _proto.handleMaster_ = function handleMaster_() {\n    // clear media request\n    this.mediaRequest_ = null;\n    var newMaster = parseMasterXml({\n      masterXml: this.masterPlaylistLoader_.masterXml_,\n      srcUrl: this.masterPlaylistLoader_.srcUrl,\n      clientOffset: this.masterPlaylistLoader_.clientOffset_,\n      sidxMapping: this.masterPlaylistLoader_.sidxMapping_\n    });\n    var oldMaster = this.masterPlaylistLoader_.master; // if we have an old master to compare the new master against\n\n    if (oldMaster) {\n      newMaster = updateMaster(oldMaster, newMaster, this.masterPlaylistLoader_.sidxMapping_);\n    } // only update master if we have a new master\n\n\n    this.masterPlaylistLoader_.master = newMaster ? newMaster : oldMaster;\n    var location = this.masterPlaylistLoader_.master.locations && this.masterPlaylistLoader_.master.locations[0];\n\n    if (location && location !== this.masterPlaylistLoader_.srcUrl) {\n      this.masterPlaylistLoader_.srcUrl = location;\n    }\n\n    if (!oldMaster || newMaster && newMaster.minimumUpdatePeriod !== oldMaster.minimumUpdatePeriod) {\n      this.updateMinimumUpdatePeriodTimeout_();\n    }\n\n    return Boolean(newMaster);\n  };\n\n  _proto.updateMinimumUpdatePeriodTimeout_ = function updateMinimumUpdatePeriodTimeout_() {\n    var mpl = this.masterPlaylistLoader_; // cancel any pending creation of mup on media\n    // a new one will be added if needed.\n\n    if (mpl.createMupOnMedia_) {\n      mpl.off('loadedmetadata', mpl.createMupOnMedia_);\n      mpl.createMupOnMedia_ = null;\n    } // clear any pending timeouts\n\n\n    if (mpl.minimumUpdatePeriodTimeout_) {\n      window.clearTimeout(mpl.minimumUpdatePeriodTimeout_);\n      mpl.minimumUpdatePeriodTimeout_ = null;\n    }\n\n    var mup = mpl.master && mpl.master.minimumUpdatePeriod; // If the minimumUpdatePeriod has a value of 0, that indicates that the current\n    // MPD has no future validity, so a new one will need to be acquired when new\n    // media segments are to be made available. Thus, we use the target duration\n    // in this case\n\n    if (mup === 0) {\n      if (mpl.media()) {\n        mup = mpl.media().targetDuration * 1000;\n      } else {\n        mpl.createMupOnMedia_ = mpl.updateMinimumUpdatePeriodTimeout_;\n        mpl.one('loadedmetadata', mpl.createMupOnMedia_);\n      }\n    } // if minimumUpdatePeriod is invalid or <= zero, which\n    // can happen when a live video becomes VOD. skip timeout\n    // creation.\n\n\n    if (typeof mup !== 'number' || mup <= 0) {\n      if (mup < 0) {\n        this.logger_(\"found invalid minimumUpdatePeriod of \" + mup + \", not setting a timeout\");\n      }\n\n      return;\n    }\n\n    this.createMUPTimeout_(mup);\n  };\n\n  _proto.createMUPTimeout_ = function createMUPTimeout_(mup) {\n    var mpl = this.masterPlaylistLoader_;\n    mpl.minimumUpdatePeriodTimeout_ = window.setTimeout(function () {\n      mpl.minimumUpdatePeriodTimeout_ = null;\n      mpl.trigger('minimumUpdatePeriod');\n      mpl.createMUPTimeout_(mup);\n    }, mup);\n  }\n  /**\n   * Sends request to refresh the master xml and updates the parsed master manifest\n   */\n  ;\n\n  _proto.refreshXml_ = function refreshXml_() {\n    var _this8 = this;\n\n    this.requestMaster_(function (req, masterChanged) {\n      if (!masterChanged) {\n        return;\n      }\n\n      if (_this8.media_) {\n        _this8.media_ = _this8.masterPlaylistLoader_.master.playlists[_this8.media_.id];\n      } // This will filter out updated sidx info from the mapping\n\n\n      _this8.masterPlaylistLoader_.sidxMapping_ = filterChangedSidxMappings(_this8.masterPlaylistLoader_.master, _this8.masterPlaylistLoader_.sidxMapping_);\n\n      _this8.addSidxSegments_(_this8.media(), _this8.state, function (sidxChanged) {\n        // TODO: do we need to reload the current playlist?\n        _this8.refreshMedia_(_this8.media().id);\n      });\n    });\n  }\n  /**\n   * Refreshes the media playlist by re-parsing the master xml and updating playlist\n   * references. If this is an alternate loader, the updated parsed manifest is retrieved\n   * from the master loader.\n   */\n  ;\n\n  _proto.refreshMedia_ = function refreshMedia_(mediaID) {\n    var _this9 = this;\n\n    if (!mediaID) {\n      throw new Error('refreshMedia_ must take a media id');\n    } // for master we have to reparse the master xml\n    // to re-create segments based on current timing values\n    // which may change media. We only skip updating master\n    // if this is the first time this.media_ is being set.\n    // as master was just parsed in that case.\n\n\n    if (this.media_ && this.isMaster_) {\n      this.handleMaster_();\n    }\n\n    var playlists = this.masterPlaylistLoader_.master.playlists;\n    var mediaChanged = !this.media_ || this.media_ !== playlists[mediaID];\n\n    if (mediaChanged) {\n      this.media_ = playlists[mediaID];\n    } else {\n      this.trigger('playlistunchanged');\n    }\n\n    if (!this.mediaUpdateTimeout) {\n      var createMediaUpdateTimeout = function createMediaUpdateTimeout() {\n        if (_this9.media().endList) {\n          return;\n        }\n\n        _this9.mediaUpdateTimeout = window.setTimeout(function () {\n          _this9.trigger('mediaupdatetimeout');\n\n          createMediaUpdateTimeout();\n        }, refreshDelay(_this9.media(), Boolean(mediaChanged)));\n      };\n\n      createMediaUpdateTimeout();\n    }\n\n    this.trigger('loadedplaylist');\n  };\n\n  return DashPlaylistLoader;\n}(EventTarget);\n\nvar Config = {\n  GOAL_BUFFER_LENGTH: 30,\n  MAX_GOAL_BUFFER_LENGTH: 60,\n  BACK_BUFFER_LENGTH: 30,\n  GOAL_BUFFER_LENGTH_RATE: 1,\n  // 0.5 MB/s\n  INITIAL_BANDWIDTH: 4194304,\n  // A fudge factor to apply to advertised playlist bitrates to account for\n  // temporary flucations in client bandwidth\n  BANDWIDTH_VARIANCE: 1.2,\n  // How much of the buffer must be filled before we consider upswitching\n  BUFFER_LOW_WATER_LINE: 0,\n  MAX_BUFFER_LOW_WATER_LINE: 30,\n  // TODO: Remove this when experimentalBufferBasedABR is removed\n  EXPERIMENTAL_MAX_BUFFER_LOW_WATER_LINE: 16,\n  BUFFER_LOW_WATER_LINE_RATE: 1,\n  // If the buffer is greater than the high water line, we won't switch down\n  BUFFER_HIGH_WATER_LINE: 30\n};\n\nvar stringToArrayBuffer = function stringToArrayBuffer(string) {\n  var view = new Uint8Array(new ArrayBuffer(string.length));\n\n  for (var i = 0; i < string.length; i++) {\n    view[i] = string.charCodeAt(i);\n  }\n\n  return view.buffer;\n};\n/* global Blob, BlobBuilder, Worker */\n// unify worker interface\n\n\nvar browserWorkerPolyFill = function browserWorkerPolyFill(workerObj) {\n  // node only supports on/off\n  workerObj.on = workerObj.addEventListener;\n  workerObj.off = workerObj.removeEventListener;\n  return workerObj;\n};\n\nvar createObjectURL = function createObjectURL(str) {\n  try {\n    return URL.createObjectURL(new Blob([str], {\n      type: 'application/javascript'\n    }));\n  } catch (e) {\n    var blob = new BlobBuilder();\n    blob.append(str);\n    return URL.createObjectURL(blob.getBlob());\n  }\n};\n\nvar factory = function factory(code) {\n  return function () {\n    var objectUrl = createObjectURL(code);\n    var worker = browserWorkerPolyFill(new Worker(objectUrl));\n    worker.objURL = objectUrl;\n    var terminate = worker.terminate;\n    worker.on = worker.addEventListener;\n    worker.off = worker.removeEventListener;\n\n    worker.terminate = function () {\n      URL.revokeObjectURL(objectUrl);\n      return terminate.call(this);\n    };\n\n    return worker;\n  };\n};\n\nvar transform = function transform(code) {\n  return \"var browserWorkerPolyFill = \" + browserWorkerPolyFill.toString() + \";\\n\" + 'browserWorkerPolyFill(self);\\n' + code;\n};\n\nvar getWorkerString = function getWorkerString(fn) {\n  return fn.toString().replace(/^function.+?{/, '').slice(0, -1);\n};\n/* rollup-plugin-worker-factory start for worker!/Users/bcasey/Projects/videojs-http-streaming/src/transmuxer-worker.js */\n\n\nvar workerCode$1 = transform(getWorkerString(function () {\n  /**\n   * mux.js\n   *\n   * Copyright (c) Brightcove\n   * Licensed Apache-2.0 https://github.com/videojs/mux.js/blob/master/LICENSE\n   *\n   * A lightweight readable stream implemention that handles event dispatching.\n   * Objects that inherit from streams should call init in their constructors.\n   */\n  var Stream = function Stream() {\n    this.init = function () {\n      var listeners = {};\n      /**\n       * Add a listener for a specified event type.\n       * @param type {string} the event name\n       * @param listener {function} the callback to be invoked when an event of\n       * the specified type occurs\n       */\n\n      this.on = function (type, listener) {\n        if (!listeners[type]) {\n          listeners[type] = [];\n        }\n\n        listeners[type] = listeners[type].concat(listener);\n      };\n      /**\n       * Remove a listener for a specified event type.\n       * @param type {string} the event name\n       * @param listener {function} a function previously registered for this\n       * type of event through `on`\n       */\n\n\n      this.off = function (type, listener) {\n        var index;\n\n        if (!listeners[type]) {\n          return false;\n        }\n\n        index = listeners[type].indexOf(listener);\n        listeners[type] = listeners[type].slice();\n        listeners[type].splice(index, 1);\n        return index > -1;\n      };\n      /**\n       * Trigger an event of the specified type on this stream. Any additional\n       * arguments to this function are passed as parameters to event listeners.\n       * @param type {string} the event name\n       */\n\n\n      this.trigger = function (type) {\n        var callbacks, i, length, args;\n        callbacks = listeners[type];\n\n        if (!callbacks) {\n          return;\n        } // Slicing the arguments on every invocation of this method\n        // can add a significant amount of overhead. Avoid the\n        // intermediate object creation for the common case of a\n        // single callback argument\n\n\n        if (arguments.length === 2) {\n          length = callbacks.length;\n\n          for (i = 0; i < length; ++i) {\n            callbacks[i].call(this, arguments[1]);\n          }\n        } else {\n          args = [];\n          i = arguments.length;\n\n          for (i = 1; i < arguments.length; ++i) {\n            args.push(arguments[i]);\n          }\n\n          length = callbacks.length;\n\n          for (i = 0; i < length; ++i) {\n            callbacks[i].apply(this, args);\n          }\n        }\n      };\n      /**\n       * Destroys the stream and cleans up.\n       */\n\n\n      this.dispose = function () {\n        listeners = {};\n      };\n    };\n  };\n  /**\n   * Forwards all `data` events on this stream to the destination stream. The\n   * destination stream should provide a method `push` to receive the data\n   * events as they arrive.\n   * @param destination {stream} the stream that will receive all `data` events\n   * @param autoFlush {boolean} if false, we will not call `flush` on the destination\n   *                            when the current stream emits a 'done' event\n   * @see http://nodejs.org/api/stream.html#stream_readable_pipe_destination_options\n   */\n\n\n  Stream.prototype.pipe = function (destination) {\n    this.on('data', function (data) {\n      destination.push(data);\n    });\n    this.on('done', function (flushSource) {\n      destination.flush(flushSource);\n    });\n    this.on('partialdone', function (flushSource) {\n      destination.partialFlush(flushSource);\n    });\n    this.on('endedtimeline', function (flushSource) {\n      destination.endTimeline(flushSource);\n    });\n    this.on('reset', function (flushSource) {\n      destination.reset(flushSource);\n    });\n    return destination;\n  }; // Default stream functions that are expected to be overridden to perform\n  // actual work. These are provided by the prototype as a sort of no-op\n  // implementation so that we don't have to check for their existence in the\n  // `pipe` function above.\n\n\n  Stream.prototype.push = function (data) {\n    this.trigger('data', data);\n  };\n\n  Stream.prototype.flush = function (flushSource) {\n    this.trigger('done', flushSource);\n  };\n\n  Stream.prototype.partialFlush = function (flushSource) {\n    this.trigger('partialdone', flushSource);\n  };\n\n  Stream.prototype.endTimeline = function (flushSource) {\n    this.trigger('endedtimeline', flushSource);\n  };\n\n  Stream.prototype.reset = function (flushSource) {\n    this.trigger('reset', flushSource);\n  };\n\n  var stream = Stream;\n  /**\n   * mux.js\n   *\n   * Copyright (c) Brightcove\n   * Licensed Apache-2.0 https://github.com/videojs/mux.js/blob/master/LICENSE\n   *\n   * Functions that generate fragmented MP4s suitable for use with Media\n   * Source Extensions.\n   */\n\n  var UINT32_MAX = Math.pow(2, 32) - 1;\n  var box, dinf, esds, ftyp, mdat, mfhd, minf, moof, moov, mvex, mvhd, trak, tkhd, mdia, mdhd, hdlr, sdtp, stbl, stsd, traf, trex, trun$1, types, MAJOR_BRAND, MINOR_VERSION, AVC1_BRAND, VIDEO_HDLR, AUDIO_HDLR, HDLR_TYPES, VMHD, SMHD, DREF, STCO, STSC, STSZ, STTS; // pre-calculate constants\n\n  (function () {\n    var i;\n    types = {\n      avc1: [],\n      // codingname\n      avcC: [],\n      btrt: [],\n      dinf: [],\n      dref: [],\n      esds: [],\n      ftyp: [],\n      hdlr: [],\n      mdat: [],\n      mdhd: [],\n      mdia: [],\n      mfhd: [],\n      minf: [],\n      moof: [],\n      moov: [],\n      mp4a: [],\n      // codingname\n      mvex: [],\n      mvhd: [],\n      pasp: [],\n      sdtp: [],\n      smhd: [],\n      stbl: [],\n      stco: [],\n      stsc: [],\n      stsd: [],\n      stsz: [],\n      stts: [],\n      styp: [],\n      tfdt: [],\n      tfhd: [],\n      traf: [],\n      trak: [],\n      trun: [],\n      trex: [],\n      tkhd: [],\n      vmhd: []\n    }; // In environments where Uint8Array is undefined (e.g., IE8), skip set up so that we\n    // don't throw an error\n\n    if (typeof Uint8Array === 'undefined') {\n      return;\n    }\n\n    for (i in types) {\n      if (types.hasOwnProperty(i)) {\n        types[i] = [i.charCodeAt(0), i.charCodeAt(1), i.charCodeAt(2), i.charCodeAt(3)];\n      }\n    }\n\n    MAJOR_BRAND = new Uint8Array(['i'.charCodeAt(0), 's'.charCodeAt(0), 'o'.charCodeAt(0), 'm'.charCodeAt(0)]);\n    AVC1_BRAND = new Uint8Array(['a'.charCodeAt(0), 'v'.charCodeAt(0), 'c'.charCodeAt(0), '1'.charCodeAt(0)]);\n    MINOR_VERSION = new Uint8Array([0, 0, 0, 1]);\n    VIDEO_HDLR = new Uint8Array([0x00, // version 0\n    0x00, 0x00, 0x00, // flags\n    0x00, 0x00, 0x00, 0x00, // pre_defined\n    0x76, 0x69, 0x64, 0x65, // handler_type: 'vide'\n    0x00, 0x00, 0x00, 0x00, // reserved\n    0x00, 0x00, 0x00, 0x00, // reserved\n    0x00, 0x00, 0x00, 0x00, // reserved\n    0x56, 0x69, 0x64, 0x65, 0x6f, 0x48, 0x61, 0x6e, 0x64, 0x6c, 0x65, 0x72, 0x00 // name: 'VideoHandler'\n    ]);\n    AUDIO_HDLR = new Uint8Array([0x00, // version 0\n    0x00, 0x00, 0x00, // flags\n    0x00, 0x00, 0x00, 0x00, // pre_defined\n    0x73, 0x6f, 0x75, 0x6e, // handler_type: 'soun'\n    0x00, 0x00, 0x00, 0x00, // reserved\n    0x00, 0x00, 0x00, 0x00, // reserved\n    0x00, 0x00, 0x00, 0x00, // reserved\n    0x53, 0x6f, 0x75, 0x6e, 0x64, 0x48, 0x61, 0x6e, 0x64, 0x6c, 0x65, 0x72, 0x00 // name: 'SoundHandler'\n    ]);\n    HDLR_TYPES = {\n      video: VIDEO_HDLR,\n      audio: AUDIO_HDLR\n    };\n    DREF = new Uint8Array([0x00, // version 0\n    0x00, 0x00, 0x00, // flags\n    0x00, 0x00, 0x00, 0x01, // entry_count\n    0x00, 0x00, 0x00, 0x0c, // entry_size\n    0x75, 0x72, 0x6c, 0x20, // 'url' type\n    0x00, // version 0\n    0x00, 0x00, 0x01 // entry_flags\n    ]);\n    SMHD = new Uint8Array([0x00, // version\n    0x00, 0x00, 0x00, // flags\n    0x00, 0x00, // balance, 0 means centered\n    0x00, 0x00 // reserved\n    ]);\n    STCO = new Uint8Array([0x00, // version\n    0x00, 0x00, 0x00, // flags\n    0x00, 0x00, 0x00, 0x00 // entry_count\n    ]);\n    STSC = STCO;\n    STSZ = new Uint8Array([0x00, // version\n    0x00, 0x00, 0x00, // flags\n    0x00, 0x00, 0x00, 0x00, // sample_size\n    0x00, 0x00, 0x00, 0x00 // sample_count\n    ]);\n    STTS = STCO;\n    VMHD = new Uint8Array([0x00, // version\n    0x00, 0x00, 0x01, // flags\n    0x00, 0x00, // graphicsmode\n    0x00, 0x00, 0x00, 0x00, 0x00, 0x00 // opcolor\n    ]);\n  })();\n\n  box = function box(type) {\n    var payload = [],\n        size = 0,\n        i,\n        result,\n        view;\n\n    for (i = 1; i < arguments.length; i++) {\n      payload.push(arguments[i]);\n    }\n\n    i = payload.length; // calculate the total size we need to allocate\n\n    while (i--) {\n      size += payload[i].byteLength;\n    }\n\n    result = new Uint8Array(size + 8);\n    view = new DataView(result.buffer, result.byteOffset, result.byteLength);\n    view.setUint32(0, result.byteLength);\n    result.set(type, 4); // copy the payload into the result\n\n    for (i = 0, size = 8; i < payload.length; i++) {\n      result.set(payload[i], size);\n      size += payload[i].byteLength;\n    }\n\n    return result;\n  };\n\n  dinf = function dinf() {\n    return box(types.dinf, box(types.dref, DREF));\n  };\n\n  esds = function esds(track) {\n    return box(types.esds, new Uint8Array([0x00, // version\n    0x00, 0x00, 0x00, // flags\n    // ES_Descriptor\n    0x03, // tag, ES_DescrTag\n    0x19, // length\n    0x00, 0x00, // ES_ID\n    0x00, // streamDependenceFlag, URL_flag, reserved, streamPriority\n    // DecoderConfigDescriptor\n    0x04, // tag, DecoderConfigDescrTag\n    0x11, // length\n    0x40, // object type\n    0x15, // streamType\n    0x00, 0x06, 0x00, // bufferSizeDB\n    0x00, 0x00, 0xda, 0xc0, // maxBitrate\n    0x00, 0x00, 0xda, 0xc0, // avgBitrate\n    // DecoderSpecificInfo\n    0x05, // tag, DecoderSpecificInfoTag\n    0x02, // length\n    // ISO/IEC 14496-3, AudioSpecificConfig\n    // for samplingFrequencyIndex see ISO/IEC 13818-7:2006, 8.1.3.2.2, Table 35\n    track.audioobjecttype << 3 | track.samplingfrequencyindex >>> 1, track.samplingfrequencyindex << 7 | track.channelcount << 3, 0x06, 0x01, 0x02 // GASpecificConfig\n    ]));\n  };\n\n  ftyp = function ftyp() {\n    return box(types.ftyp, MAJOR_BRAND, MINOR_VERSION, MAJOR_BRAND, AVC1_BRAND);\n  };\n\n  hdlr = function hdlr(type) {\n    return box(types.hdlr, HDLR_TYPES[type]);\n  };\n\n  mdat = function mdat(data) {\n    return box(types.mdat, data);\n  };\n\n  mdhd = function mdhd(track) {\n    var result = new Uint8Array([0x00, // version 0\n    0x00, 0x00, 0x00, // flags\n    0x00, 0x00, 0x00, 0x02, // creation_time\n    0x00, 0x00, 0x00, 0x03, // modification_time\n    0x00, 0x01, 0x5f, 0x90, // timescale, 90,000 \"ticks\" per second\n    track.duration >>> 24 & 0xFF, track.duration >>> 16 & 0xFF, track.duration >>> 8 & 0xFF, track.duration & 0xFF, // duration\n    0x55, 0xc4, // 'und' language (undetermined)\n    0x00, 0x00]); // Use the sample rate from the track metadata, when it is\n    // defined. The sample rate can be parsed out of an ADTS header, for\n    // instance.\n\n    if (track.samplerate) {\n      result[12] = track.samplerate >>> 24 & 0xFF;\n      result[13] = track.samplerate >>> 16 & 0xFF;\n      result[14] = track.samplerate >>> 8 & 0xFF;\n      result[15] = track.samplerate & 0xFF;\n    }\n\n    return box(types.mdhd, result);\n  };\n\n  mdia = function mdia(track) {\n    return box(types.mdia, mdhd(track), hdlr(track.type), minf(track));\n  };\n\n  mfhd = function mfhd(sequenceNumber) {\n    return box(types.mfhd, new Uint8Array([0x00, 0x00, 0x00, 0x00, // flags\n    (sequenceNumber & 0xFF000000) >> 24, (sequenceNumber & 0xFF0000) >> 16, (sequenceNumber & 0xFF00) >> 8, sequenceNumber & 0xFF // sequence_number\n    ]));\n  };\n\n  minf = function minf(track) {\n    return box(types.minf, track.type === 'video' ? box(types.vmhd, VMHD) : box(types.smhd, SMHD), dinf(), stbl(track));\n  };\n\n  moof = function moof(sequenceNumber, tracks) {\n    var trackFragments = [],\n        i = tracks.length; // build traf boxes for each track fragment\n\n    while (i--) {\n      trackFragments[i] = traf(tracks[i]);\n    }\n\n    return box.apply(null, [types.moof, mfhd(sequenceNumber)].concat(trackFragments));\n  };\n  /**\n   * Returns a movie box.\n   * @param tracks {array} the tracks associated with this movie\n   * @see ISO/IEC 14496-12:2012(E), section 8.2.1\n   */\n\n\n  moov = function moov(tracks) {\n    var i = tracks.length,\n        boxes = [];\n\n    while (i--) {\n      boxes[i] = trak(tracks[i]);\n    }\n\n    return box.apply(null, [types.moov, mvhd(0xffffffff)].concat(boxes).concat(mvex(tracks)));\n  };\n\n  mvex = function mvex(tracks) {\n    var i = tracks.length,\n        boxes = [];\n\n    while (i--) {\n      boxes[i] = trex(tracks[i]);\n    }\n\n    return box.apply(null, [types.mvex].concat(boxes));\n  };\n\n  mvhd = function mvhd(duration) {\n    var bytes = new Uint8Array([0x00, // version 0\n    0x00, 0x00, 0x00, // flags\n    0x00, 0x00, 0x00, 0x01, // creation_time\n    0x00, 0x00, 0x00, 0x02, // modification_time\n    0x00, 0x01, 0x5f, 0x90, // timescale, 90,000 \"ticks\" per second\n    (duration & 0xFF000000) >> 24, (duration & 0xFF0000) >> 16, (duration & 0xFF00) >> 8, duration & 0xFF, // duration\n    0x00, 0x01, 0x00, 0x00, // 1.0 rate\n    0x01, 0x00, // 1.0 volume\n    0x00, 0x00, // reserved\n    0x00, 0x00, 0x00, 0x00, // reserved\n    0x00, 0x00, 0x00, 0x00, // reserved\n    0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x00, 0x00, 0x00, // transformation: unity matrix\n    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // pre_defined\n    0xff, 0xff, 0xff, 0xff // next_track_ID\n    ]);\n    return box(types.mvhd, bytes);\n  };\n\n  sdtp = function sdtp(track) {\n    var samples = track.samples || [],\n        bytes = new Uint8Array(4 + samples.length),\n        flags,\n        i; // leave the full box header (4 bytes) all zero\n    // write the sample table\n\n    for (i = 0; i < samples.length; i++) {\n      flags = samples[i].flags;\n      bytes[i + 4] = flags.dependsOn << 4 | flags.isDependedOn << 2 | flags.hasRedundancy;\n    }\n\n    return box(types.sdtp, bytes);\n  };\n\n  stbl = function stbl(track) {\n    return box(types.stbl, stsd(track), box(types.stts, STTS), box(types.stsc, STSC), box(types.stsz, STSZ), box(types.stco, STCO));\n  };\n\n  (function () {\n    var videoSample, audioSample;\n\n    stsd = function stsd(track) {\n      return box(types.stsd, new Uint8Array([0x00, // version 0\n      0x00, 0x00, 0x00, // flags\n      0x00, 0x00, 0x00, 0x01]), track.type === 'video' ? videoSample(track) : audioSample(track));\n    };\n\n    videoSample = function videoSample(track) {\n      var sps = track.sps || [],\n          pps = track.pps || [],\n          sequenceParameterSets = [],\n          pictureParameterSets = [],\n          i,\n          avc1Box; // assemble the SPSs\n\n      for (i = 0; i < sps.length; i++) {\n        sequenceParameterSets.push((sps[i].byteLength & 0xFF00) >>> 8);\n        sequenceParameterSets.push(sps[i].byteLength & 0xFF); // sequenceParameterSetLength\n\n        sequenceParameterSets = sequenceParameterSets.concat(Array.prototype.slice.call(sps[i])); // SPS\n      } // assemble the PPSs\n\n\n      for (i = 0; i < pps.length; i++) {\n        pictureParameterSets.push((pps[i].byteLength & 0xFF00) >>> 8);\n        pictureParameterSets.push(pps[i].byteLength & 0xFF);\n        pictureParameterSets = pictureParameterSets.concat(Array.prototype.slice.call(pps[i]));\n      }\n\n      avc1Box = [types.avc1, new Uint8Array([0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // reserved\n      0x00, 0x01, // data_reference_index\n      0x00, 0x00, // pre_defined\n      0x00, 0x00, // reserved\n      0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // pre_defined\n      (track.width & 0xff00) >> 8, track.width & 0xff, // width\n      (track.height & 0xff00) >> 8, track.height & 0xff, // height\n      0x00, 0x48, 0x00, 0x00, // horizresolution\n      0x00, 0x48, 0x00, 0x00, // vertresolution\n      0x00, 0x00, 0x00, 0x00, // reserved\n      0x00, 0x01, // frame_count\n      0x13, 0x76, 0x69, 0x64, 0x65, 0x6f, 0x6a, 0x73, 0x2d, 0x63, 0x6f, 0x6e, 0x74, 0x72, 0x69, 0x62, 0x2d, 0x68, 0x6c, 0x73, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // compressorname\n      0x00, 0x18, // depth = 24\n      0x11, 0x11 // pre_defined = -1\n      ]), box(types.avcC, new Uint8Array([0x01, // configurationVersion\n      track.profileIdc, // AVCProfileIndication\n      track.profileCompatibility, // profile_compatibility\n      track.levelIdc, // AVCLevelIndication\n      0xff // lengthSizeMinusOne, hard-coded to 4 bytes\n      ].concat([sps.length], // numOfSequenceParameterSets\n      sequenceParameterSets, // \"SPS\"\n      [pps.length], // numOfPictureParameterSets\n      pictureParameterSets // \"PPS\"\n      ))), box(types.btrt, new Uint8Array([0x00, 0x1c, 0x9c, 0x80, // bufferSizeDB\n      0x00, 0x2d, 0xc6, 0xc0, // maxBitrate\n      0x00, 0x2d, 0xc6, 0xc0 // avgBitrate\n      ]))];\n\n      if (track.sarRatio) {\n        var hSpacing = track.sarRatio[0],\n            vSpacing = track.sarRatio[1];\n        avc1Box.push(box(types.pasp, new Uint8Array([(hSpacing & 0xFF000000) >> 24, (hSpacing & 0xFF0000) >> 16, (hSpacing & 0xFF00) >> 8, hSpacing & 0xFF, (vSpacing & 0xFF000000) >> 24, (vSpacing & 0xFF0000) >> 16, (vSpacing & 0xFF00) >> 8, vSpacing & 0xFF])));\n      }\n\n      return box.apply(null, avc1Box);\n    };\n\n    audioSample = function audioSample(track) {\n      return box(types.mp4a, new Uint8Array([// SampleEntry, ISO/IEC 14496-12\n      0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // reserved\n      0x00, 0x01, // data_reference_index\n      // AudioSampleEntry, ISO/IEC 14496-12\n      0x00, 0x00, 0x00, 0x00, // reserved\n      0x00, 0x00, 0x00, 0x00, // reserved\n      (track.channelcount & 0xff00) >> 8, track.channelcount & 0xff, // channelcount\n      (track.samplesize & 0xff00) >> 8, track.samplesize & 0xff, // samplesize\n      0x00, 0x00, // pre_defined\n      0x00, 0x00, // reserved\n      (track.samplerate & 0xff00) >> 8, track.samplerate & 0xff, 0x00, 0x00 // samplerate, 16.16\n      // MP4AudioSampleEntry, ISO/IEC 14496-14\n      ]), esds(track));\n    };\n  })();\n\n  tkhd = function tkhd(track) {\n    var result = new Uint8Array([0x00, // version 0\n    0x00, 0x00, 0x07, // flags\n    0x00, 0x00, 0x00, 0x00, // creation_time\n    0x00, 0x00, 0x00, 0x00, // modification_time\n    (track.id & 0xFF000000) >> 24, (track.id & 0xFF0000) >> 16, (track.id & 0xFF00) >> 8, track.id & 0xFF, // track_ID\n    0x00, 0x00, 0x00, 0x00, // reserved\n    (track.duration & 0xFF000000) >> 24, (track.duration & 0xFF0000) >> 16, (track.duration & 0xFF00) >> 8, track.duration & 0xFF, // duration\n    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, // reserved\n    0x00, 0x00, // layer\n    0x00, 0x00, // alternate_group\n    0x01, 0x00, // non-audio track volume\n    0x00, 0x00, // reserved\n    0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x00, 0x00, 0x00, // transformation: unity matrix\n    (track.width & 0xFF00) >> 8, track.width & 0xFF, 0x00, 0x00, // width\n    (track.height & 0xFF00) >> 8, track.height & 0xFF, 0x00, 0x00 // height\n    ]);\n    return box(types.tkhd, result);\n  };\n  /**\n   * Generate a track fragment (traf) box. A traf box collects metadata\n   * about tracks in a movie fragment (moof) box.\n   */\n\n\n  traf = function traf(track) {\n    var trackFragmentHeader, trackFragmentDecodeTime, trackFragmentRun, sampleDependencyTable, dataOffset, upperWordBaseMediaDecodeTime, lowerWordBaseMediaDecodeTime;\n    trackFragmentHeader = box(types.tfhd, new Uint8Array([0x00, // version 0\n    0x00, 0x00, 0x3a, // flags\n    (track.id & 0xFF000000) >> 24, (track.id & 0xFF0000) >> 16, (track.id & 0xFF00) >> 8, track.id & 0xFF, // track_ID\n    0x00, 0x00, 0x00, 0x01, // sample_description_index\n    0x00, 0x00, 0x00, 0x00, // default_sample_duration\n    0x00, 0x00, 0x00, 0x00, // default_sample_size\n    0x00, 0x00, 0x00, 0x00 // default_sample_flags\n    ]));\n    upperWordBaseMediaDecodeTime = Math.floor(track.baseMediaDecodeTime / (UINT32_MAX + 1));\n    lowerWordBaseMediaDecodeTime = Math.floor(track.baseMediaDecodeTime % (UINT32_MAX + 1));\n    trackFragmentDecodeTime = box(types.tfdt, new Uint8Array([0x01, // version 1\n    0x00, 0x00, 0x00, // flags\n    // baseMediaDecodeTime\n    upperWordBaseMediaDecodeTime >>> 24 & 0xFF, upperWordBaseMediaDecodeTime >>> 16 & 0xFF, upperWordBaseMediaDecodeTime >>> 8 & 0xFF, upperWordBaseMediaDecodeTime & 0xFF, lowerWordBaseMediaDecodeTime >>> 24 & 0xFF, lowerWordBaseMediaDecodeTime >>> 16 & 0xFF, lowerWordBaseMediaDecodeTime >>> 8 & 0xFF, lowerWordBaseMediaDecodeTime & 0xFF])); // the data offset specifies the number of bytes from the start of\n    // the containing moof to the first payload byte of the associated\n    // mdat\n\n    dataOffset = 32 + // tfhd\n    20 + // tfdt\n    8 + // traf header\n    16 + // mfhd\n    8 + // moof header\n    8; // mdat header\n    // audio tracks require less metadata\n\n    if (track.type === 'audio') {\n      trackFragmentRun = trun$1(track, dataOffset);\n      return box(types.traf, trackFragmentHeader, trackFragmentDecodeTime, trackFragmentRun);\n    } // video tracks should contain an independent and disposable samples\n    // box (sdtp)\n    // generate one and adjust offsets to match\n\n\n    sampleDependencyTable = sdtp(track);\n    trackFragmentRun = trun$1(track, sampleDependencyTable.length + dataOffset);\n    return box(types.traf, trackFragmentHeader, trackFragmentDecodeTime, trackFragmentRun, sampleDependencyTable);\n  };\n  /**\n   * Generate a track box.\n   * @param track {object} a track definition\n   * @return {Uint8Array} the track box\n   */\n\n\n  trak = function trak(track) {\n    track.duration = track.duration || 0xffffffff;\n    return box(types.trak, tkhd(track), mdia(track));\n  };\n\n  trex = function trex(track) {\n    var result = new Uint8Array([0x00, // version 0\n    0x00, 0x00, 0x00, // flags\n    (track.id & 0xFF000000) >> 24, (track.id & 0xFF0000) >> 16, (track.id & 0xFF00) >> 8, track.id & 0xFF, // track_ID\n    0x00, 0x00, 0x00, 0x01, // default_sample_description_index\n    0x00, 0x00, 0x00, 0x00, // default_sample_duration\n    0x00, 0x00, 0x00, 0x00, // default_sample_size\n    0x00, 0x01, 0x00, 0x01 // default_sample_flags\n    ]); // the last two bytes of default_sample_flags is the sample\n    // degradation priority, a hint about the importance of this sample\n    // relative to others. Lower the degradation priority for all sample\n    // types other than video.\n\n    if (track.type !== 'video') {\n      result[result.length - 1] = 0x00;\n    }\n\n    return box(types.trex, result);\n  };\n\n  (function () {\n    var audioTrun, videoTrun, trunHeader; // This method assumes all samples are uniform. That is, if a\n    // duration is present for the first sample, it will be present for\n    // all subsequent samples.\n    // see ISO/IEC 14496-12:2012, Section 8.8.8.1\n\n    trunHeader = function trunHeader(samples, offset) {\n      var durationPresent = 0,\n          sizePresent = 0,\n          flagsPresent = 0,\n          compositionTimeOffset = 0; // trun flag constants\n\n      if (samples.length) {\n        if (samples[0].duration !== undefined) {\n          durationPresent = 0x1;\n        }\n\n        if (samples[0].size !== undefined) {\n          sizePresent = 0x2;\n        }\n\n        if (samples[0].flags !== undefined) {\n          flagsPresent = 0x4;\n        }\n\n        if (samples[0].compositionTimeOffset !== undefined) {\n          compositionTimeOffset = 0x8;\n        }\n      }\n\n      return [0x00, // version 0\n      0x00, durationPresent | sizePresent | flagsPresent | compositionTimeOffset, 0x01, // flags\n      (samples.length & 0xFF000000) >>> 24, (samples.length & 0xFF0000) >>> 16, (samples.length & 0xFF00) >>> 8, samples.length & 0xFF, // sample_count\n      (offset & 0xFF000000) >>> 24, (offset & 0xFF0000) >>> 16, (offset & 0xFF00) >>> 8, offset & 0xFF // data_offset\n      ];\n    };\n\n    videoTrun = function videoTrun(track, offset) {\n      var bytesOffest, bytes, header, samples, sample, i;\n      samples = track.samples || [];\n      offset += 8 + 12 + 16 * samples.length;\n      header = trunHeader(samples, offset);\n      bytes = new Uint8Array(header.length + samples.length * 16);\n      bytes.set(header);\n      bytesOffest = header.length;\n\n      for (i = 0; i < samples.length; i++) {\n        sample = samples[i];\n        bytes[bytesOffest++] = (sample.duration & 0xFF000000) >>> 24;\n        bytes[bytesOffest++] = (sample.duration & 0xFF0000) >>> 16;\n        bytes[bytesOffest++] = (sample.duration & 0xFF00) >>> 8;\n        bytes[bytesOffest++] = sample.duration & 0xFF; // sample_duration\n\n        bytes[bytesOffest++] = (sample.size & 0xFF000000) >>> 24;\n        bytes[bytesOffest++] = (sample.size & 0xFF0000) >>> 16;\n        bytes[bytesOffest++] = (sample.size & 0xFF00) >>> 8;\n        bytes[bytesOffest++] = sample.size & 0xFF; // sample_size\n\n        bytes[bytesOffest++] = sample.flags.isLeading << 2 | sample.flags.dependsOn;\n        bytes[bytesOffest++] = sample.flags.isDependedOn << 6 | sample.flags.hasRedundancy << 4 | sample.flags.paddingValue << 1 | sample.flags.isNonSyncSample;\n        bytes[bytesOffest++] = sample.flags.degradationPriority & 0xF0 << 8;\n        bytes[bytesOffest++] = sample.flags.degradationPriority & 0x0F; // sample_flags\n\n        bytes[bytesOffest++] = (sample.compositionTimeOffset & 0xFF000000) >>> 24;\n        bytes[bytesOffest++] = (sample.compositionTimeOffset & 0xFF0000) >>> 16;\n        bytes[bytesOffest++] = (sample.compositionTimeOffset & 0xFF00) >>> 8;\n        bytes[bytesOffest++] = sample.compositionTimeOffset & 0xFF; // sample_composition_time_offset\n      }\n\n      return box(types.trun, bytes);\n    };\n\n    audioTrun = function audioTrun(track, offset) {\n      var bytes, bytesOffest, header, samples, sample, i;\n      samples = track.samples || [];\n      offset += 8 + 12 + 8 * samples.length;\n      header = trunHeader(samples, offset);\n      bytes = new Uint8Array(header.length + samples.length * 8);\n      bytes.set(header);\n      bytesOffest = header.length;\n\n      for (i = 0; i < samples.length; i++) {\n        sample = samples[i];\n        bytes[bytesOffest++] = (sample.duration & 0xFF000000) >>> 24;\n        bytes[bytesOffest++] = (sample.duration & 0xFF0000) >>> 16;\n        bytes[bytesOffest++] = (sample.duration & 0xFF00) >>> 8;\n        bytes[bytesOffest++] = sample.duration & 0xFF; // sample_duration\n\n        bytes[bytesOffest++] = (sample.size & 0xFF000000) >>> 24;\n        bytes[bytesOffest++] = (sample.size & 0xFF0000) >>> 16;\n        bytes[bytesOffest++] = (sample.size & 0xFF00) >>> 8;\n        bytes[bytesOffest++] = sample.size & 0xFF; // sample_size\n      }\n\n      return box(types.trun, bytes);\n    };\n\n    trun$1 = function trun(track, offset) {\n      if (track.type === 'audio') {\n        return audioTrun(track, offset);\n      }\n\n      return videoTrun(track, offset);\n    };\n  })();\n\n  var mp4Generator = {\n    ftyp: ftyp,\n    mdat: mdat,\n    moof: moof,\n    moov: moov,\n    initSegment: function initSegment(tracks) {\n      var fileType = ftyp(),\n          movie = moov(tracks),\n          result;\n      result = new Uint8Array(fileType.byteLength + movie.byteLength);\n      result.set(fileType);\n      result.set(movie, fileType.byteLength);\n      return result;\n    }\n  };\n  /**\n   * mux.js\n   *\n   * Copyright (c) Brightcove\n   * Licensed Apache-2.0 https://github.com/videojs/mux.js/blob/master/LICENSE\n   */\n  // Convert an array of nal units into an array of frames with each frame being\n  // composed of the nal units that make up that frame\n  // Also keep track of cummulative data about the frame from the nal units such\n  // as the frame duration, starting pts, etc.\n\n  var groupNalsIntoFrames = function groupNalsIntoFrames(nalUnits) {\n    var i,\n        currentNal,\n        currentFrame = [],\n        frames = []; // TODO added for LHLS, make sure this is OK\n\n    frames.byteLength = 0;\n    frames.nalCount = 0;\n    frames.duration = 0;\n    currentFrame.byteLength = 0;\n\n    for (i = 0; i < nalUnits.length; i++) {\n      currentNal = nalUnits[i]; // Split on 'aud'-type nal units\n\n      if (currentNal.nalUnitType === 'access_unit_delimiter_rbsp') {\n        // Since the very first nal unit is expected to be an AUD\n        // only push to the frames array when currentFrame is not empty\n        if (currentFrame.length) {\n          currentFrame.duration = currentNal.dts - currentFrame.dts; // TODO added for LHLS, make sure this is OK\n\n          frames.byteLength += currentFrame.byteLength;\n          frames.nalCount += currentFrame.length;\n          frames.duration += currentFrame.duration;\n          frames.push(currentFrame);\n        }\n\n        currentFrame = [currentNal];\n        currentFrame.byteLength = currentNal.data.byteLength;\n        currentFrame.pts = currentNal.pts;\n        currentFrame.dts = currentNal.dts;\n      } else {\n        // Specifically flag key frames for ease of use later\n        if (currentNal.nalUnitType === 'slice_layer_without_partitioning_rbsp_idr') {\n          currentFrame.keyFrame = true;\n        }\n\n        currentFrame.duration = currentNal.dts - currentFrame.dts;\n        currentFrame.byteLength += currentNal.data.byteLength;\n        currentFrame.push(currentNal);\n      }\n    } // For the last frame, use the duration of the previous frame if we\n    // have nothing better to go on\n\n\n    if (frames.length && (!currentFrame.duration || currentFrame.duration <= 0)) {\n      currentFrame.duration = frames[frames.length - 1].duration;\n    } // Push the final frame\n    // TODO added for LHLS, make sure this is OK\n\n\n    frames.byteLength += currentFrame.byteLength;\n    frames.nalCount += currentFrame.length;\n    frames.duration += currentFrame.duration;\n    frames.push(currentFrame);\n    return frames;\n  }; // Convert an array of frames into an array of Gop with each Gop being composed\n  // of the frames that make up that Gop\n  // Also keep track of cummulative data about the Gop from the frames such as the\n  // Gop duration, starting pts, etc.\n\n\n  var groupFramesIntoGops = function groupFramesIntoGops(frames) {\n    var i,\n        currentFrame,\n        currentGop = [],\n        gops = []; // We must pre-set some of the values on the Gop since we\n    // keep running totals of these values\n\n    currentGop.byteLength = 0;\n    currentGop.nalCount = 0;\n    currentGop.duration = 0;\n    currentGop.pts = frames[0].pts;\n    currentGop.dts = frames[0].dts; // store some metadata about all the Gops\n\n    gops.byteLength = 0;\n    gops.nalCount = 0;\n    gops.duration = 0;\n    gops.pts = frames[0].pts;\n    gops.dts = frames[0].dts;\n\n    for (i = 0; i < frames.length; i++) {\n      currentFrame = frames[i];\n\n      if (currentFrame.keyFrame) {\n        // Since the very first frame is expected to be an keyframe\n        // only push to the gops array when currentGop is not empty\n        if (currentGop.length) {\n          gops.push(currentGop);\n          gops.byteLength += currentGop.byteLength;\n          gops.nalCount += currentGop.nalCount;\n          gops.duration += currentGop.duration;\n        }\n\n        currentGop = [currentFrame];\n        currentGop.nalCount = currentFrame.length;\n        currentGop.byteLength = currentFrame.byteLength;\n        currentGop.pts = currentFrame.pts;\n        currentGop.dts = currentFrame.dts;\n        currentGop.duration = currentFrame.duration;\n      } else {\n        currentGop.duration += currentFrame.duration;\n        currentGop.nalCount += currentFrame.length;\n        currentGop.byteLength += currentFrame.byteLength;\n        currentGop.push(currentFrame);\n      }\n    }\n\n    if (gops.length && currentGop.duration <= 0) {\n      currentGop.duration = gops[gops.length - 1].duration;\n    }\n\n    gops.byteLength += currentGop.byteLength;\n    gops.nalCount += currentGop.nalCount;\n    gops.duration += currentGop.duration; // push the final Gop\n\n    gops.push(currentGop);\n    return gops;\n  };\n  /*\n   * Search for the first keyframe in the GOPs and throw away all frames\n   * until that keyframe. Then extend the duration of the pulled keyframe\n   * and pull the PTS and DTS of the keyframe so that it covers the time\n   * range of the frames that were disposed.\n   *\n   * @param {Array} gops video GOPs\n   * @returns {Array} modified video GOPs\n   */\n\n\n  var extendFirstKeyFrame = function extendFirstKeyFrame(gops) {\n    var currentGop;\n\n    if (!gops[0][0].keyFrame && gops.length > 1) {\n      // Remove the first GOP\n      currentGop = gops.shift();\n      gops.byteLength -= currentGop.byteLength;\n      gops.nalCount -= currentGop.nalCount; // Extend the first frame of what is now the\n      // first gop to cover the time period of the\n      // frames we just removed\n\n      gops[0][0].dts = currentGop.dts;\n      gops[0][0].pts = currentGop.pts;\n      gops[0][0].duration += currentGop.duration;\n    }\n\n    return gops;\n  };\n  /**\n   * Default sample object\n   * see ISO/IEC 14496-12:2012, section 8.6.4.3\n   */\n\n\n  var createDefaultSample = function createDefaultSample() {\n    return {\n      size: 0,\n      flags: {\n        isLeading: 0,\n        dependsOn: 1,\n        isDependedOn: 0,\n        hasRedundancy: 0,\n        degradationPriority: 0,\n        isNonSyncSample: 1\n      }\n    };\n  };\n  /*\n   * Collates information from a video frame into an object for eventual\n   * entry into an MP4 sample table.\n   *\n   * @param {Object} frame the video frame\n   * @param {Number} dataOffset the byte offset to position the sample\n   * @return {Object} object containing sample table info for a frame\n   */\n\n\n  var sampleForFrame = function sampleForFrame(frame, dataOffset) {\n    var sample = createDefaultSample();\n    sample.dataOffset = dataOffset;\n    sample.compositionTimeOffset = frame.pts - frame.dts;\n    sample.duration = frame.duration;\n    sample.size = 4 * frame.length; // Space for nal unit size\n\n    sample.size += frame.byteLength;\n\n    if (frame.keyFrame) {\n      sample.flags.dependsOn = 2;\n      sample.flags.isNonSyncSample = 0;\n    }\n\n    return sample;\n  }; // generate the track's sample table from an array of gops\n\n\n  var generateSampleTable$1 = function generateSampleTable(gops, baseDataOffset) {\n    var h,\n        i,\n        sample,\n        currentGop,\n        currentFrame,\n        dataOffset = baseDataOffset || 0,\n        samples = [];\n\n    for (h = 0; h < gops.length; h++) {\n      currentGop = gops[h];\n\n      for (i = 0; i < currentGop.length; i++) {\n        currentFrame = currentGop[i];\n        sample = sampleForFrame(currentFrame, dataOffset);\n        dataOffset += sample.size;\n        samples.push(sample);\n      }\n    }\n\n    return samples;\n  }; // generate the track's raw mdat data from an array of gops\n\n\n  var concatenateNalData = function concatenateNalData(gops) {\n    var h,\n        i,\n        j,\n        currentGop,\n        currentFrame,\n        currentNal,\n        dataOffset = 0,\n        nalsByteLength = gops.byteLength,\n        numberOfNals = gops.nalCount,\n        totalByteLength = nalsByteLength + 4 * numberOfNals,\n        data = new Uint8Array(totalByteLength),\n        view = new DataView(data.buffer); // For each Gop..\n\n    for (h = 0; h < gops.length; h++) {\n      currentGop = gops[h]; // For each Frame..\n\n      for (i = 0; i < currentGop.length; i++) {\n        currentFrame = currentGop[i]; // For each NAL..\n\n        for (j = 0; j < currentFrame.length; j++) {\n          currentNal = currentFrame[j];\n          view.setUint32(dataOffset, currentNal.data.byteLength);\n          dataOffset += 4;\n          data.set(currentNal.data, dataOffset);\n          dataOffset += currentNal.data.byteLength;\n        }\n      }\n    }\n\n    return data;\n  }; // generate the track's sample table from a frame\n\n\n  var generateSampleTableForFrame = function generateSampleTableForFrame(frame, baseDataOffset) {\n    var sample,\n        dataOffset = baseDataOffset || 0,\n        samples = [];\n    sample = sampleForFrame(frame, dataOffset);\n    samples.push(sample);\n    return samples;\n  }; // generate the track's raw mdat data from a frame\n\n\n  var concatenateNalDataForFrame = function concatenateNalDataForFrame(frame) {\n    var i,\n        currentNal,\n        dataOffset = 0,\n        nalsByteLength = frame.byteLength,\n        numberOfNals = frame.length,\n        totalByteLength = nalsByteLength + 4 * numberOfNals,\n        data = new Uint8Array(totalByteLength),\n        view = new DataView(data.buffer); // For each NAL..\n\n    for (i = 0; i < frame.length; i++) {\n      currentNal = frame[i];\n      view.setUint32(dataOffset, currentNal.data.byteLength);\n      dataOffset += 4;\n      data.set(currentNal.data, dataOffset);\n      dataOffset += currentNal.data.byteLength;\n    }\n\n    return data;\n  };\n\n  var frameUtils = {\n    groupNalsIntoFrames: groupNalsIntoFrames,\n    groupFramesIntoGops: groupFramesIntoGops,\n    extendFirstKeyFrame: extendFirstKeyFrame,\n    generateSampleTable: generateSampleTable$1,\n    concatenateNalData: concatenateNalData,\n    generateSampleTableForFrame: generateSampleTableForFrame,\n    concatenateNalDataForFrame: concatenateNalDataForFrame\n  };\n  /**\n   * mux.js\n   *\n   * Copyright (c) Brightcove\n   * Licensed Apache-2.0 https://github.com/videojs/mux.js/blob/master/LICENSE\n   */\n\n  var highPrefix = [33, 16, 5, 32, 164, 27];\n  var lowPrefix = [33, 65, 108, 84, 1, 2, 4, 8, 168, 2, 4, 8, 17, 191, 252];\n\n  var zeroFill = function zeroFill(count) {\n    var a = [];\n\n    while (count--) {\n      a.push(0);\n    }\n\n    return a;\n  };\n\n  var makeTable = function makeTable(metaTable) {\n    return Object.keys(metaTable).reduce(function (obj, key) {\n      obj[key] = new Uint8Array(metaTable[key].reduce(function (arr, part) {\n        return arr.concat(part);\n      }, []));\n      return obj;\n    }, {});\n  };\n\n  var silence;\n\n  var silence_1 = function silence_1() {\n    if (!silence) {\n      // Frames-of-silence to use for filling in missing AAC frames\n      var coneOfSilence = {\n        96000: [highPrefix, [227, 64], zeroFill(154), [56]],\n        88200: [highPrefix, [231], zeroFill(170), [56]],\n        64000: [highPrefix, [248, 192], zeroFill(240), [56]],\n        48000: [highPrefix, [255, 192], zeroFill(268), [55, 148, 128], zeroFill(54), [112]],\n        44100: [highPrefix, [255, 192], zeroFill(268), [55, 163, 128], zeroFill(84), [112]],\n        32000: [highPrefix, [255, 192], zeroFill(268), [55, 234], zeroFill(226), [112]],\n        24000: [highPrefix, [255, 192], zeroFill(268), [55, 255, 128], zeroFill(268), [111, 112], zeroFill(126), [224]],\n        16000: [highPrefix, [255, 192], zeroFill(268), [55, 255, 128], zeroFill(268), [111, 255], zeroFill(269), [223, 108], zeroFill(195), [1, 192]],\n        12000: [lowPrefix, zeroFill(268), [3, 127, 248], zeroFill(268), [6, 255, 240], zeroFill(268), [13, 255, 224], zeroFill(268), [27, 253, 128], zeroFill(259), [56]],\n        11025: [lowPrefix, zeroFill(268), [3, 127, 248], zeroFill(268), [6, 255, 240], zeroFill(268), [13, 255, 224], zeroFill(268), [27, 255, 192], zeroFill(268), [55, 175, 128], zeroFill(108), [112]],\n        8000: [lowPrefix, zeroFill(268), [3, 121, 16], zeroFill(47), [7]]\n      };\n      silence = makeTable(coneOfSilence);\n    }\n\n    return silence;\n  };\n  /**\n   * mux.js\n   *\n   * Copyright (c) Brightcove\n   * Licensed Apache-2.0 https://github.com/videojs/mux.js/blob/master/LICENSE\n   */\n\n\n  var ONE_SECOND_IN_TS$4 = 90000,\n      // 90kHz clock\n  secondsToVideoTs,\n      secondsToAudioTs,\n      videoTsToSeconds,\n      audioTsToSeconds,\n      audioTsToVideoTs,\n      videoTsToAudioTs,\n      metadataTsToSeconds;\n\n  secondsToVideoTs = function secondsToVideoTs(seconds) {\n    return seconds * ONE_SECOND_IN_TS$4;\n  };\n\n  secondsToAudioTs = function secondsToAudioTs(seconds, sampleRate) {\n    return seconds * sampleRate;\n  };\n\n  videoTsToSeconds = function videoTsToSeconds(timestamp) {\n    return timestamp / ONE_SECOND_IN_TS$4;\n  };\n\n  audioTsToSeconds = function audioTsToSeconds(timestamp, sampleRate) {\n    return timestamp / sampleRate;\n  };\n\n  audioTsToVideoTs = function audioTsToVideoTs(timestamp, sampleRate) {\n    return secondsToVideoTs(audioTsToSeconds(timestamp, sampleRate));\n  };\n\n  videoTsToAudioTs = function videoTsToAudioTs(timestamp, sampleRate) {\n    return secondsToAudioTs(videoTsToSeconds(timestamp), sampleRate);\n  };\n  /**\n   * Adjust ID3 tag or caption timing information by the timeline pts values\n   * (if keepOriginalTimestamps is false) and convert to seconds\n   */\n\n\n  metadataTsToSeconds = function metadataTsToSeconds(timestamp, timelineStartPts, keepOriginalTimestamps) {\n    return videoTsToSeconds(keepOriginalTimestamps ? timestamp : timestamp - timelineStartPts);\n  };\n\n  var clock = {\n    ONE_SECOND_IN_TS: ONE_SECOND_IN_TS$4,\n    secondsToVideoTs: secondsToVideoTs,\n    secondsToAudioTs: secondsToAudioTs,\n    videoTsToSeconds: videoTsToSeconds,\n    audioTsToSeconds: audioTsToSeconds,\n    audioTsToVideoTs: audioTsToVideoTs,\n    videoTsToAudioTs: videoTsToAudioTs,\n    metadataTsToSeconds: metadataTsToSeconds\n  };\n  /**\n   * mux.js\n   *\n   * Copyright (c) Brightcove\n   * Licensed Apache-2.0 https://github.com/videojs/mux.js/blob/master/LICENSE\n   */\n\n  /**\n   * Sum the `byteLength` properties of the data in each AAC frame\n   */\n\n  var sumFrameByteLengths = function sumFrameByteLengths(array) {\n    var i,\n        currentObj,\n        sum = 0; // sum the byteLength's all each nal unit in the frame\n\n    for (i = 0; i < array.length; i++) {\n      currentObj = array[i];\n      sum += currentObj.data.byteLength;\n    }\n\n    return sum;\n  }; // Possibly pad (prefix) the audio track with silence if appending this track\n  // would lead to the introduction of a gap in the audio buffer\n\n\n  var prefixWithSilence = function prefixWithSilence(track, frames, audioAppendStartTs, videoBaseMediaDecodeTime) {\n    var baseMediaDecodeTimeTs,\n        frameDuration = 0,\n        audioGapDuration = 0,\n        audioFillFrameCount = 0,\n        audioFillDuration = 0,\n        silentFrame,\n        i,\n        firstFrame;\n\n    if (!frames.length) {\n      return;\n    }\n\n    baseMediaDecodeTimeTs = clock.audioTsToVideoTs(track.baseMediaDecodeTime, track.samplerate); // determine frame clock duration based on sample rate, round up to avoid overfills\n\n    frameDuration = Math.ceil(clock.ONE_SECOND_IN_TS / (track.samplerate / 1024));\n\n    if (audioAppendStartTs && videoBaseMediaDecodeTime) {\n      // insert the shortest possible amount (audio gap or audio to video gap)\n      audioGapDuration = baseMediaDecodeTimeTs - Math.max(audioAppendStartTs, videoBaseMediaDecodeTime); // number of full frames in the audio gap\n\n      audioFillFrameCount = Math.floor(audioGapDuration / frameDuration);\n      audioFillDuration = audioFillFrameCount * frameDuration;\n    } // don't attempt to fill gaps smaller than a single frame or larger\n    // than a half second\n\n\n    if (audioFillFrameCount < 1 || audioFillDuration > clock.ONE_SECOND_IN_TS / 2) {\n      return;\n    }\n\n    silentFrame = silence_1()[track.samplerate];\n\n    if (!silentFrame) {\n      // we don't have a silent frame pregenerated for the sample rate, so use a frame\n      // from the content instead\n      silentFrame = frames[0].data;\n    }\n\n    for (i = 0; i < audioFillFrameCount; i++) {\n      firstFrame = frames[0];\n      frames.splice(0, 0, {\n        data: silentFrame,\n        dts: firstFrame.dts - frameDuration,\n        pts: firstFrame.pts - frameDuration\n      });\n    }\n\n    track.baseMediaDecodeTime -= Math.floor(clock.videoTsToAudioTs(audioFillDuration, track.samplerate));\n    return audioFillDuration;\n  }; // If the audio segment extends before the earliest allowed dts\n  // value, remove AAC frames until starts at or after the earliest\n  // allowed DTS so that we don't end up with a negative baseMedia-\n  // DecodeTime for the audio track\n\n\n  var trimAdtsFramesByEarliestDts = function trimAdtsFramesByEarliestDts(adtsFrames, track, earliestAllowedDts) {\n    if (track.minSegmentDts >= earliestAllowedDts) {\n      return adtsFrames;\n    } // We will need to recalculate the earliest segment Dts\n\n\n    track.minSegmentDts = Infinity;\n    return adtsFrames.filter(function (currentFrame) {\n      // If this is an allowed frame, keep it and record it's Dts\n      if (currentFrame.dts >= earliestAllowedDts) {\n        track.minSegmentDts = Math.min(track.minSegmentDts, currentFrame.dts);\n        track.minSegmentPts = track.minSegmentDts;\n        return true;\n      } // Otherwise, discard it\n\n\n      return false;\n    });\n  }; // generate the track's raw mdat data from an array of frames\n\n\n  var generateSampleTable = function generateSampleTable(frames) {\n    var i,\n        currentFrame,\n        samples = [];\n\n    for (i = 0; i < frames.length; i++) {\n      currentFrame = frames[i];\n      samples.push({\n        size: currentFrame.data.byteLength,\n        duration: 1024 // For AAC audio, all samples contain 1024 samples\n\n      });\n    }\n\n    return samples;\n  }; // generate the track's sample table from an array of frames\n\n\n  var concatenateFrameData = function concatenateFrameData(frames) {\n    var i,\n        currentFrame,\n        dataOffset = 0,\n        data = new Uint8Array(sumFrameByteLengths(frames));\n\n    for (i = 0; i < frames.length; i++) {\n      currentFrame = frames[i];\n      data.set(currentFrame.data, dataOffset);\n      dataOffset += currentFrame.data.byteLength;\n    }\n\n    return data;\n  };\n\n  var audioFrameUtils = {\n    prefixWithSilence: prefixWithSilence,\n    trimAdtsFramesByEarliestDts: trimAdtsFramesByEarliestDts,\n    generateSampleTable: generateSampleTable,\n    concatenateFrameData: concatenateFrameData\n  };\n  /**\n   * mux.js\n   *\n   * Copyright (c) Brightcove\n   * Licensed Apache-2.0 https://github.com/videojs/mux.js/blob/master/LICENSE\n   */\n\n  var ONE_SECOND_IN_TS$3 = clock.ONE_SECOND_IN_TS;\n  /**\n   * Store information about the start and end of the track and the\n   * duration for each frame/sample we process in order to calculate\n   * the baseMediaDecodeTime\n   */\n\n  var collectDtsInfo = function collectDtsInfo(track, data) {\n    if (typeof data.pts === 'number') {\n      if (track.timelineStartInfo.pts === undefined) {\n        track.timelineStartInfo.pts = data.pts;\n      }\n\n      if (track.minSegmentPts === undefined) {\n        track.minSegmentPts = data.pts;\n      } else {\n        track.minSegmentPts = Math.min(track.minSegmentPts, data.pts);\n      }\n\n      if (track.maxSegmentPts === undefined) {\n        track.maxSegmentPts = data.pts;\n      } else {\n        track.maxSegmentPts = Math.max(track.maxSegmentPts, data.pts);\n      }\n    }\n\n    if (typeof data.dts === 'number') {\n      if (track.timelineStartInfo.dts === undefined) {\n        track.timelineStartInfo.dts = data.dts;\n      }\n\n      if (track.minSegmentDts === undefined) {\n        track.minSegmentDts = data.dts;\n      } else {\n        track.minSegmentDts = Math.min(track.minSegmentDts, data.dts);\n      }\n\n      if (track.maxSegmentDts === undefined) {\n        track.maxSegmentDts = data.dts;\n      } else {\n        track.maxSegmentDts = Math.max(track.maxSegmentDts, data.dts);\n      }\n    }\n  };\n  /**\n   * Clear values used to calculate the baseMediaDecodeTime between\n   * tracks\n   */\n\n\n  var clearDtsInfo = function clearDtsInfo(track) {\n    delete track.minSegmentDts;\n    delete track.maxSegmentDts;\n    delete track.minSegmentPts;\n    delete track.maxSegmentPts;\n  };\n  /**\n   * Calculate the track's baseMediaDecodeTime based on the earliest\n   * DTS the transmuxer has ever seen and the minimum DTS for the\n   * current track\n   * @param track {object} track metadata configuration\n   * @param keepOriginalTimestamps {boolean} If true, keep the timestamps\n   *        in the source; false to adjust the first segment to start at 0.\n   */\n\n\n  var calculateTrackBaseMediaDecodeTime = function calculateTrackBaseMediaDecodeTime(track, keepOriginalTimestamps) {\n    var baseMediaDecodeTime,\n        scale,\n        minSegmentDts = track.minSegmentDts; // Optionally adjust the time so the first segment starts at zero.\n\n    if (!keepOriginalTimestamps) {\n      minSegmentDts -= track.timelineStartInfo.dts;\n    } // track.timelineStartInfo.baseMediaDecodeTime is the location, in time, where\n    // we want the start of the first segment to be placed\n\n\n    baseMediaDecodeTime = track.timelineStartInfo.baseMediaDecodeTime; // Add to that the distance this segment is from the very first\n\n    baseMediaDecodeTime += minSegmentDts; // baseMediaDecodeTime must not become negative\n\n    baseMediaDecodeTime = Math.max(0, baseMediaDecodeTime);\n\n    if (track.type === 'audio') {\n      // Audio has a different clock equal to the sampling_rate so we need to\n      // scale the PTS values into the clock rate of the track\n      scale = track.samplerate / ONE_SECOND_IN_TS$3;\n      baseMediaDecodeTime *= scale;\n      baseMediaDecodeTime = Math.floor(baseMediaDecodeTime);\n    }\n\n    return baseMediaDecodeTime;\n  };\n\n  var trackDecodeInfo = {\n    clearDtsInfo: clearDtsInfo,\n    calculateTrackBaseMediaDecodeTime: calculateTrackBaseMediaDecodeTime,\n    collectDtsInfo: collectDtsInfo\n  };\n  /**\n   * mux.js\n   *\n   * Copyright (c) Brightcove\n   * Licensed Apache-2.0 https://github.com/videojs/mux.js/blob/master/LICENSE\n   *\n   * Reads in-band caption information from a video elementary\n   * stream. Captions must follow the CEA-708 standard for injection\n   * into an MPEG-2 transport streams.\n   * @see https://en.wikipedia.org/wiki/CEA-708\n   * @see https://www.gpo.gov/fdsys/pkg/CFR-2007-title47-vol1/pdf/CFR-2007-title47-vol1-sec15-119.pdf\n   */\n  // payload type field to indicate how they are to be\n  // interpreted. CEAS-708 caption content is always transmitted with\n  // payload type 0x04.\n\n  var USER_DATA_REGISTERED_ITU_T_T35 = 4,\n      RBSP_TRAILING_BITS = 128;\n  /**\n    * Parse a supplemental enhancement information (SEI) NAL unit.\n    * Stops parsing once a message of type ITU T T35 has been found.\n    *\n    * @param bytes {Uint8Array} the bytes of a SEI NAL unit\n    * @return {object} the parsed SEI payload\n    * @see Rec. ITU-T H.264, 7.3.2.3.1\n    */\n\n  var parseSei = function parseSei(bytes) {\n    var i = 0,\n        result = {\n      payloadType: -1,\n      payloadSize: 0\n    },\n        payloadType = 0,\n        payloadSize = 0; // go through the sei_rbsp parsing each each individual sei_message\n\n    while (i < bytes.byteLength) {\n      // stop once we have hit the end of the sei_rbsp\n      if (bytes[i] === RBSP_TRAILING_BITS) {\n        break;\n      } // Parse payload type\n\n\n      while (bytes[i] === 0xFF) {\n        payloadType += 255;\n        i++;\n      }\n\n      payloadType += bytes[i++]; // Parse payload size\n\n      while (bytes[i] === 0xFF) {\n        payloadSize += 255;\n        i++;\n      }\n\n      payloadSize += bytes[i++]; // this sei_message is a 608/708 caption so save it and break\n      // there can only ever be one caption message in a frame's sei\n\n      if (!result.payload && payloadType === USER_DATA_REGISTERED_ITU_T_T35) {\n        var userIdentifier = String.fromCharCode(bytes[i + 3], bytes[i + 4], bytes[i + 5], bytes[i + 6]);\n\n        if (userIdentifier === 'GA94') {\n          result.payloadType = payloadType;\n          result.payloadSize = payloadSize;\n          result.payload = bytes.subarray(i, i + payloadSize);\n          break;\n        } else {\n          result.payload = void 0;\n        }\n      } // skip the payload and parse the next message\n\n\n      i += payloadSize;\n      payloadType = 0;\n      payloadSize = 0;\n    }\n\n    return result;\n  }; // see ANSI/SCTE 128-1 (2013), section 8.1\n\n\n  var parseUserData = function parseUserData(sei) {\n    // itu_t_t35_contry_code must be 181 (United States) for\n    // captions\n    if (sei.payload[0] !== 181) {\n      return null;\n    } // itu_t_t35_provider_code should be 49 (ATSC) for captions\n\n\n    if ((sei.payload[1] << 8 | sei.payload[2]) !== 49) {\n      return null;\n    } // the user_identifier should be \"GA94\" to indicate ATSC1 data\n\n\n    if (String.fromCharCode(sei.payload[3], sei.payload[4], sei.payload[5], sei.payload[6]) !== 'GA94') {\n      return null;\n    } // finally, user_data_type_code should be 0x03 for caption data\n\n\n    if (sei.payload[7] !== 0x03) {\n      return null;\n    } // return the user_data_type_structure and strip the trailing\n    // marker bits\n\n\n    return sei.payload.subarray(8, sei.payload.length - 1);\n  }; // see CEA-708-D, section 4.4\n\n\n  var parseCaptionPackets = function parseCaptionPackets(pts, userData) {\n    var results = [],\n        i,\n        count,\n        offset,\n        data; // if this is just filler, return immediately\n\n    if (!(userData[0] & 0x40)) {\n      return results;\n    } // parse out the cc_data_1 and cc_data_2 fields\n\n\n    count = userData[0] & 0x1f;\n\n    for (i = 0; i < count; i++) {\n      offset = i * 3;\n      data = {\n        type: userData[offset + 2] & 0x03,\n        pts: pts\n      }; // capture cc data when cc_valid is 1\n\n      if (userData[offset + 2] & 0x04) {\n        data.ccData = userData[offset + 3] << 8 | userData[offset + 4];\n        results.push(data);\n      }\n    }\n\n    return results;\n  };\n\n  var discardEmulationPreventionBytes$1 = function discardEmulationPreventionBytes(data) {\n    var length = data.byteLength,\n        emulationPreventionBytesPositions = [],\n        i = 1,\n        newLength,\n        newData; // Find all `Emulation Prevention Bytes`\n\n    while (i < length - 2) {\n      if (data[i] === 0 && data[i + 1] === 0 && data[i + 2] === 0x03) {\n        emulationPreventionBytesPositions.push(i + 2);\n        i += 2;\n      } else {\n        i++;\n      }\n    } // If no Emulation Prevention Bytes were found just return the original\n    // array\n\n\n    if (emulationPreventionBytesPositions.length === 0) {\n      return data;\n    } // Create a new array to hold the NAL unit data\n\n\n    newLength = length - emulationPreventionBytesPositions.length;\n    newData = new Uint8Array(newLength);\n    var sourceIndex = 0;\n\n    for (i = 0; i < newLength; sourceIndex++, i++) {\n      if (sourceIndex === emulationPreventionBytesPositions[0]) {\n        // Skip this byte\n        sourceIndex++; // Remove this position index\n\n        emulationPreventionBytesPositions.shift();\n      }\n\n      newData[i] = data[sourceIndex];\n    }\n\n    return newData;\n  }; // exports\n\n\n  var captionPacketParser = {\n    parseSei: parseSei,\n    parseUserData: parseUserData,\n    parseCaptionPackets: parseCaptionPackets,\n    discardEmulationPreventionBytes: discardEmulationPreventionBytes$1,\n    USER_DATA_REGISTERED_ITU_T_T35: USER_DATA_REGISTERED_ITU_T_T35\n  }; // Link To Transport\n  // -----------------\n\n  var CaptionStream$1 = function CaptionStream(options) {\n    options = options || {};\n    CaptionStream.prototype.init.call(this); // parse708captions flag, default to true\n\n    this.parse708captions_ = typeof options.parse708captions === 'boolean' ? options.parse708captions : true;\n    this.captionPackets_ = [];\n    this.ccStreams_ = [new Cea608Stream(0, 0), // eslint-disable-line no-use-before-define\n    new Cea608Stream(0, 1), // eslint-disable-line no-use-before-define\n    new Cea608Stream(1, 0), // eslint-disable-line no-use-before-define\n    new Cea608Stream(1, 1) // eslint-disable-line no-use-before-define\n    ];\n\n    if (this.parse708captions_) {\n      this.cc708Stream_ = new Cea708Stream(); // eslint-disable-line no-use-before-define\n    }\n\n    this.reset(); // forward data and done events from CCs to this CaptionStream\n\n    this.ccStreams_.forEach(function (cc) {\n      cc.on('data', this.trigger.bind(this, 'data'));\n      cc.on('partialdone', this.trigger.bind(this, 'partialdone'));\n      cc.on('done', this.trigger.bind(this, 'done'));\n    }, this);\n\n    if (this.parse708captions_) {\n      this.cc708Stream_.on('data', this.trigger.bind(this, 'data'));\n      this.cc708Stream_.on('partialdone', this.trigger.bind(this, 'partialdone'));\n      this.cc708Stream_.on('done', this.trigger.bind(this, 'done'));\n    }\n  };\n\n  CaptionStream$1.prototype = new stream();\n\n  CaptionStream$1.prototype.push = function (event) {\n    var sei, userData, newCaptionPackets; // only examine SEI NALs\n\n    if (event.nalUnitType !== 'sei_rbsp') {\n      return;\n    } // parse the sei\n\n\n    sei = captionPacketParser.parseSei(event.escapedRBSP); // no payload data, skip\n\n    if (!sei.payload) {\n      return;\n    } // ignore everything but user_data_registered_itu_t_t35\n\n\n    if (sei.payloadType !== captionPacketParser.USER_DATA_REGISTERED_ITU_T_T35) {\n      return;\n    } // parse out the user data payload\n\n\n    userData = captionPacketParser.parseUserData(sei); // ignore unrecognized userData\n\n    if (!userData) {\n      return;\n    } // Sometimes, the same segment # will be downloaded twice. To stop the\n    // caption data from being processed twice, we track the latest dts we've\n    // received and ignore everything with a dts before that. However, since\n    // data for a specific dts can be split across packets on either side of\n    // a segment boundary, we need to make sure we *don't* ignore the packets\n    // from the *next* segment that have dts === this.latestDts_. By constantly\n    // tracking the number of packets received with dts === this.latestDts_, we\n    // know how many should be ignored once we start receiving duplicates.\n\n\n    if (event.dts < this.latestDts_) {\n      // We've started getting older data, so set the flag.\n      this.ignoreNextEqualDts_ = true;\n      return;\n    } else if (event.dts === this.latestDts_ && this.ignoreNextEqualDts_) {\n      this.numSameDts_--;\n\n      if (!this.numSameDts_) {\n        // We've received the last duplicate packet, time to start processing again\n        this.ignoreNextEqualDts_ = false;\n      }\n\n      return;\n    } // parse out CC data packets and save them for later\n\n\n    newCaptionPackets = captionPacketParser.parseCaptionPackets(event.pts, userData);\n    this.captionPackets_ = this.captionPackets_.concat(newCaptionPackets);\n\n    if (this.latestDts_ !== event.dts) {\n      this.numSameDts_ = 0;\n    }\n\n    this.numSameDts_++;\n    this.latestDts_ = event.dts;\n  };\n\n  CaptionStream$1.prototype.flushCCStreams = function (flushType) {\n    this.ccStreams_.forEach(function (cc) {\n      return flushType === 'flush' ? cc.flush() : cc.partialFlush();\n    }, this);\n  };\n\n  CaptionStream$1.prototype.flushStream = function (flushType) {\n    // make sure we actually parsed captions before proceeding\n    if (!this.captionPackets_.length) {\n      this.flushCCStreams(flushType);\n      return;\n    } // In Chrome, the Array#sort function is not stable so add a\n    // presortIndex that we can use to ensure we get a stable-sort\n\n\n    this.captionPackets_.forEach(function (elem, idx) {\n      elem.presortIndex = idx;\n    }); // sort caption byte-pairs based on their PTS values\n\n    this.captionPackets_.sort(function (a, b) {\n      if (a.pts === b.pts) {\n        return a.presortIndex - b.presortIndex;\n      }\n\n      return a.pts - b.pts;\n    });\n    this.captionPackets_.forEach(function (packet) {\n      if (packet.type < 2) {\n        // Dispatch packet to the right Cea608Stream\n        this.dispatchCea608Packet(packet);\n      } else {\n        // Dispatch packet to the Cea708Stream\n        this.dispatchCea708Packet(packet);\n      }\n    }, this);\n    this.captionPackets_.length = 0;\n    this.flushCCStreams(flushType);\n  };\n\n  CaptionStream$1.prototype.flush = function () {\n    return this.flushStream('flush');\n  }; // Only called if handling partial data\n\n\n  CaptionStream$1.prototype.partialFlush = function () {\n    return this.flushStream('partialFlush');\n  };\n\n  CaptionStream$1.prototype.reset = function () {\n    this.latestDts_ = null;\n    this.ignoreNextEqualDts_ = false;\n    this.numSameDts_ = 0;\n    this.activeCea608Channel_ = [null, null];\n    this.ccStreams_.forEach(function (ccStream) {\n      ccStream.reset();\n    });\n  }; // From the CEA-608 spec:\n\n  /*\n   * When XDS sub-packets are interleaved with other services, the end of each sub-packet shall be followed\n   * by a control pair to change to a different service. When any of the control codes from 0x10 to 0x1F is\n   * used to begin a control code pair, it indicates the return to captioning or Text data. The control code pair\n   * and subsequent data should then be processed according to the FCC rules. It may be necessary for the\n   * line 21 data encoder to automatically insert a control code pair (i.e. RCL, RU2, RU3, RU4, RDC, or RTD)\n   * to switch to captioning or Text.\n  */\n  // With that in mind, we ignore any data between an XDS control code and a\n  // subsequent closed-captioning control code.\n\n\n  CaptionStream$1.prototype.dispatchCea608Packet = function (packet) {\n    // NOTE: packet.type is the CEA608 field\n    if (this.setsTextOrXDSActive(packet)) {\n      this.activeCea608Channel_[packet.type] = null;\n    } else if (this.setsChannel1Active(packet)) {\n      this.activeCea608Channel_[packet.type] = 0;\n    } else if (this.setsChannel2Active(packet)) {\n      this.activeCea608Channel_[packet.type] = 1;\n    }\n\n    if (this.activeCea608Channel_[packet.type] === null) {\n      // If we haven't received anything to set the active channel, or the\n      // packets are Text/XDS data, discard the data; we don't want jumbled\n      // captions\n      return;\n    }\n\n    this.ccStreams_[(packet.type << 1) + this.activeCea608Channel_[packet.type]].push(packet);\n  };\n\n  CaptionStream$1.prototype.setsChannel1Active = function (packet) {\n    return (packet.ccData & 0x7800) === 0x1000;\n  };\n\n  CaptionStream$1.prototype.setsChannel2Active = function (packet) {\n    return (packet.ccData & 0x7800) === 0x1800;\n  };\n\n  CaptionStream$1.prototype.setsTextOrXDSActive = function (packet) {\n    return (packet.ccData & 0x7100) === 0x0100 || (packet.ccData & 0x78fe) === 0x102a || (packet.ccData & 0x78fe) === 0x182a;\n  };\n\n  CaptionStream$1.prototype.dispatchCea708Packet = function (packet) {\n    if (this.parse708captions_) {\n      this.cc708Stream_.push(packet);\n    }\n  }; // ----------------------\n  // Session to Application\n  // ----------------------\n  // This hash maps special and extended character codes to their\n  // proper Unicode equivalent. The first one-byte key is just a\n  // non-standard character code. The two-byte keys that follow are\n  // the extended CEA708 character codes, along with the preceding\n  // 0x10 extended character byte to distinguish these codes from\n  // non-extended character codes. Every CEA708 character code that\n  // is not in this object maps directly to a standard unicode\n  // character code.\n  // The transparent space and non-breaking transparent space are\n  // technically not fully supported since there is no code to\n  // make them transparent, so they have normal non-transparent\n  // stand-ins.\n  // The special closed caption (CC) character isn't a standard\n  // unicode character, so a fairly similar unicode character was\n  // chosen in it's place.\n\n\n  var CHARACTER_TRANSLATION_708 = {\n    0x7f: 0x266a,\n    // ♪\n    0x1020: 0x20,\n    // Transparent Space\n    0x1021: 0xa0,\n    // Nob-breaking Transparent Space\n    0x1025: 0x2026,\n    // …\n    0x102a: 0x0160,\n    // Š\n    0x102c: 0x0152,\n    // Œ\n    0x1030: 0x2588,\n    // █\n    0x1031: 0x2018,\n    // ‘\n    0x1032: 0x2019,\n    // ’\n    0x1033: 0x201c,\n    // “\n    0x1034: 0x201d,\n    // ”\n    0x1035: 0x2022,\n    // •\n    0x1039: 0x2122,\n    // ™\n    0x103a: 0x0161,\n    // š\n    0x103c: 0x0153,\n    // œ\n    0x103d: 0x2120,\n    // ℠\n    0x103f: 0x0178,\n    // Ÿ\n    0x1076: 0x215b,\n    // ⅛\n    0x1077: 0x215c,\n    // ⅜\n    0x1078: 0x215d,\n    // ⅝\n    0x1079: 0x215e,\n    // ⅞\n    0x107a: 0x23d0,\n    // ⏐\n    0x107b: 0x23a4,\n    // ⎤\n    0x107c: 0x23a3,\n    // ⎣\n    0x107d: 0x23af,\n    // ⎯\n    0x107e: 0x23a6,\n    // ⎦\n    0x107f: 0x23a1,\n    // ⎡\n    0x10a0: 0x3138 // ㄸ (CC char)\n\n  };\n\n  var get708CharFromCode = function get708CharFromCode(code) {\n    var newCode = CHARACTER_TRANSLATION_708[code] || code;\n\n    if (code & 0x1000 && code === newCode) {\n      // Invalid extended code\n      return '';\n    }\n\n    return String.fromCharCode(newCode);\n  };\n\n  var within708TextBlock = function within708TextBlock(b) {\n    return 0x20 <= b && b <= 0x7f || 0xa0 <= b && b <= 0xff;\n  };\n\n  var Cea708Window = function Cea708Window(windowNum) {\n    this.windowNum = windowNum;\n    this.reset();\n  };\n\n  Cea708Window.prototype.reset = function () {\n    this.clearText();\n    this.pendingNewLine = false;\n    this.winAttr = {};\n    this.penAttr = {};\n    this.penLoc = {};\n    this.penColor = {}; // These default values are arbitrary,\n    // defineWindow will usually override them\n\n    this.visible = 0;\n    this.rowLock = 0;\n    this.columnLock = 0;\n    this.priority = 0;\n    this.relativePositioning = 0;\n    this.anchorVertical = 0;\n    this.anchorHorizontal = 0;\n    this.anchorPoint = 0;\n    this.rowCount = 1;\n    this.virtualRowCount = this.rowCount + 1;\n    this.columnCount = 41;\n    this.windowStyle = 0;\n    this.penStyle = 0;\n  };\n\n  Cea708Window.prototype.getText = function () {\n    return this.rows.join('\\n');\n  };\n\n  Cea708Window.prototype.clearText = function () {\n    this.rows = [''];\n    this.rowIdx = 0;\n  };\n\n  Cea708Window.prototype.newLine = function (pts) {\n    if (this.rows.length >= this.virtualRowCount && typeof this.beforeRowOverflow === 'function') {\n      this.beforeRowOverflow(pts);\n    }\n\n    if (this.rows.length > 0) {\n      this.rows.push('');\n      this.rowIdx++;\n    } // Show all virtual rows since there's no visible scrolling\n\n\n    while (this.rows.length > this.virtualRowCount) {\n      this.rows.shift();\n      this.rowIdx--;\n    }\n  };\n\n  Cea708Window.prototype.isEmpty = function () {\n    if (this.rows.length === 0) {\n      return true;\n    } else if (this.rows.length === 1) {\n      return this.rows[0] === '';\n    }\n\n    return false;\n  };\n\n  Cea708Window.prototype.addText = function (text) {\n    this.rows[this.rowIdx] += text;\n  };\n\n  Cea708Window.prototype.backspace = function () {\n    if (!this.isEmpty()) {\n      var row = this.rows[this.rowIdx];\n      this.rows[this.rowIdx] = row.substr(0, row.length - 1);\n    }\n  };\n\n  var Cea708Service = function Cea708Service(serviceNum) {\n    this.serviceNum = serviceNum;\n    this.text = '';\n    this.currentWindow = new Cea708Window(-1);\n    this.windows = [];\n  };\n  /**\n   * Initialize service windows\n   * Must be run before service use\n   *\n   * @param  {Integer}  pts               PTS value\n   * @param  {Function} beforeRowOverflow Function to execute before row overflow of a window\n   */\n\n\n  Cea708Service.prototype.init = function (pts, beforeRowOverflow) {\n    this.startPts = pts;\n\n    for (var win = 0; win < 8; win++) {\n      this.windows[win] = new Cea708Window(win);\n\n      if (typeof beforeRowOverflow === 'function') {\n        this.windows[win].beforeRowOverflow = beforeRowOverflow;\n      }\n    }\n  };\n  /**\n   * Set current window of service to be affected by commands\n   *\n   * @param  {Integer} windowNum Window number\n   */\n\n\n  Cea708Service.prototype.setCurrentWindow = function (windowNum) {\n    this.currentWindow = this.windows[windowNum];\n  };\n\n  var Cea708Stream = function Cea708Stream() {\n    Cea708Stream.prototype.init.call(this);\n    var self = this;\n    this.current708Packet = null;\n    this.services = {};\n\n    this.push = function (packet) {\n      if (packet.type === 3) {\n        // 708 packet start\n        self.new708Packet();\n        self.add708Bytes(packet);\n      } else {\n        if (self.current708Packet === null) {\n          // This should only happen at the start of a file if there's no packet start.\n          self.new708Packet();\n        }\n\n        self.add708Bytes(packet);\n      }\n    };\n  };\n\n  Cea708Stream.prototype = new stream();\n  /**\n   * Push current 708 packet, create new 708 packet.\n   */\n\n  Cea708Stream.prototype.new708Packet = function () {\n    if (this.current708Packet !== null) {\n      this.push708Packet();\n    }\n\n    this.current708Packet = {\n      data: [],\n      ptsVals: []\n    };\n  };\n  /**\n   * Add pts and both bytes from packet into current 708 packet.\n   */\n\n\n  Cea708Stream.prototype.add708Bytes = function (packet) {\n    var data = packet.ccData;\n    var byte0 = data >>> 8;\n    var byte1 = data & 0xff; // I would just keep a list of packets instead of bytes, but it isn't clear in the spec\n    // that service blocks will always line up with byte pairs.\n\n    this.current708Packet.ptsVals.push(packet.pts);\n    this.current708Packet.data.push(byte0);\n    this.current708Packet.data.push(byte1);\n  };\n  /**\n   * Parse completed 708 packet into service blocks and push each service block.\n   */\n\n\n  Cea708Stream.prototype.push708Packet = function () {\n    var packet708 = this.current708Packet;\n    var packetData = packet708.data;\n    var serviceNum = null;\n    var blockSize = null;\n    var i = 0;\n    var b = packetData[i++];\n    packet708.seq = b >> 6;\n    packet708.sizeCode = b & 0x3f; // 0b00111111;\n\n    for (; i < packetData.length; i++) {\n      b = packetData[i++];\n      serviceNum = b >> 5;\n      blockSize = b & 0x1f; // 0b00011111\n\n      if (serviceNum === 7 && blockSize > 0) {\n        // Extended service num\n        b = packetData[i++];\n        serviceNum = b;\n      }\n\n      this.pushServiceBlock(serviceNum, i, blockSize);\n\n      if (blockSize > 0) {\n        i += blockSize - 1;\n      }\n    }\n  };\n  /**\n   * Parse service block, execute commands, read text.\n   *\n   * Note: While many of these commands serve important purposes,\n   * many others just parse out the parameters or attributes, but\n   * nothing is done with them because this is not a full and complete\n   * implementation of the entire 708 spec.\n   *\n   * @param  {Integer} serviceNum Service number\n   * @param  {Integer} start      Start index of the 708 packet data\n   * @param  {Integer} size       Block size\n   */\n\n\n  Cea708Stream.prototype.pushServiceBlock = function (serviceNum, start, size) {\n    var b;\n    var i = start;\n    var packetData = this.current708Packet.data;\n    var service = this.services[serviceNum];\n\n    if (!service) {\n      service = this.initService(serviceNum, i);\n    }\n\n    for (; i < start + size && i < packetData.length; i++) {\n      b = packetData[i];\n\n      if (within708TextBlock(b)) {\n        i = this.handleText(i, service);\n      } else if (b === 0x10) {\n        i = this.extendedCommands(i, service);\n      } else if (0x80 <= b && b <= 0x87) {\n        i = this.setCurrentWindow(i, service);\n      } else if (0x98 <= b && b <= 0x9f) {\n        i = this.defineWindow(i, service);\n      } else if (b === 0x88) {\n        i = this.clearWindows(i, service);\n      } else if (b === 0x8c) {\n        i = this.deleteWindows(i, service);\n      } else if (b === 0x89) {\n        i = this.displayWindows(i, service);\n      } else if (b === 0x8a) {\n        i = this.hideWindows(i, service);\n      } else if (b === 0x8b) {\n        i = this.toggleWindows(i, service);\n      } else if (b === 0x97) {\n        i = this.setWindowAttributes(i, service);\n      } else if (b === 0x90) {\n        i = this.setPenAttributes(i, service);\n      } else if (b === 0x91) {\n        i = this.setPenColor(i, service);\n      } else if (b === 0x92) {\n        i = this.setPenLocation(i, service);\n      } else if (b === 0x8f) {\n        service = this.reset(i, service);\n      } else if (b === 0x08) {\n        // BS: Backspace\n        service.currentWindow.backspace();\n      } else if (b === 0x0c) {\n        // FF: Form feed\n        service.currentWindow.clearText();\n      } else if (b === 0x0d) {\n        // CR: Carriage return\n        service.currentWindow.pendingNewLine = true;\n      } else if (b === 0x0e) {\n        // HCR: Horizontal carriage return\n        service.currentWindow.clearText();\n      } else if (b === 0x8d) {\n        // DLY: Delay, nothing to do\n        i++;\n      } else ;\n    }\n  };\n  /**\n   * Execute an extended command\n   *\n   * @param  {Integer} i        Current index in the 708 packet\n   * @param  {Service} service  The service object to be affected\n   * @return {Integer}          New index after parsing\n   */\n\n\n  Cea708Stream.prototype.extendedCommands = function (i, service) {\n    var packetData = this.current708Packet.data;\n    var b = packetData[++i];\n\n    if (within708TextBlock(b)) {\n      i = this.handleText(i, service, true);\n    }\n\n    return i;\n  };\n  /**\n   * Get PTS value of a given byte index\n   *\n   * @param  {Integer} byteIndex  Index of the byte\n   * @return {Integer}            PTS\n   */\n\n\n  Cea708Stream.prototype.getPts = function (byteIndex) {\n    // There's 1 pts value per 2 bytes\n    return this.current708Packet.ptsVals[Math.floor(byteIndex / 2)];\n  };\n  /**\n   * Initializes a service\n   *\n   * @param  {Integer} serviceNum Service number\n   * @return {Service}            Initialized service object\n   */\n\n\n  Cea708Stream.prototype.initService = function (serviceNum, i) {\n    var self = this;\n    this.services[serviceNum] = new Cea708Service(serviceNum);\n    this.services[serviceNum].init(this.getPts(i), function (pts) {\n      self.flushDisplayed(pts, self.services[serviceNum]);\n    });\n    return this.services[serviceNum];\n  };\n  /**\n   * Execute text writing to current window\n   *\n   * @param  {Integer} i        Current index in the 708 packet\n   * @param  {Service} service  The service object to be affected\n   * @return {Integer}          New index after parsing\n   */\n\n\n  Cea708Stream.prototype.handleText = function (i, service, isExtended) {\n    var packetData = this.current708Packet.data;\n    var b = packetData[i];\n    var extended = isExtended ? 0x1000 : 0x0000;\n\n    var _char = get708CharFromCode(extended | b);\n\n    var win = service.currentWindow;\n\n    if (win.pendingNewLine && !win.isEmpty()) {\n      win.newLine(this.getPts(i));\n    }\n\n    win.pendingNewLine = false;\n    win.addText(_char);\n    return i;\n  };\n  /**\n   * Parse and execute the CW# command.\n   *\n   * Set the current window.\n   *\n   * @param  {Integer} i        Current index in the 708 packet\n   * @param  {Service} service  The service object to be affected\n   * @return {Integer}          New index after parsing\n   */\n\n\n  Cea708Stream.prototype.setCurrentWindow = function (i, service) {\n    var packetData = this.current708Packet.data;\n    var b = packetData[i];\n    var windowNum = b & 0x07;\n    service.setCurrentWindow(windowNum);\n    return i;\n  };\n  /**\n   * Parse and execute the DF# command.\n   *\n   * Define a window and set it as the current window.\n   *\n   * @param  {Integer} i        Current index in the 708 packet\n   * @param  {Service} service  The service object to be affected\n   * @return {Integer}          New index after parsing\n   */\n\n\n  Cea708Stream.prototype.defineWindow = function (i, service) {\n    var packetData = this.current708Packet.data;\n    var b = packetData[i];\n    var windowNum = b & 0x07;\n    service.setCurrentWindow(windowNum);\n    var win = service.currentWindow;\n    b = packetData[++i];\n    win.visible = (b & 0x20) >> 5; // v\n\n    win.rowLock = (b & 0x10) >> 4; // rl\n\n    win.columnLock = (b & 0x08) >> 3; // cl\n\n    win.priority = b & 0x07; // p\n\n    b = packetData[++i];\n    win.relativePositioning = (b & 0x80) >> 7; // rp\n\n    win.anchorVertical = b & 0x7f; // av\n\n    b = packetData[++i];\n    win.anchorHorizontal = b; // ah\n\n    b = packetData[++i];\n    win.anchorPoint = (b & 0xf0) >> 4; // ap\n\n    win.rowCount = b & 0x0f; // rc\n\n    b = packetData[++i];\n    win.columnCount = b & 0x3f; // cc\n\n    b = packetData[++i];\n    win.windowStyle = (b & 0x38) >> 3; // ws\n\n    win.penStyle = b & 0x07; // ps\n    // The spec says there are (rowCount+1) \"virtual rows\"\n\n    win.virtualRowCount = win.rowCount + 1;\n    return i;\n  };\n  /**\n   * Parse and execute the SWA command.\n   *\n   * Set attributes of the current window.\n   *\n   * @param  {Integer} i        Current index in the 708 packet\n   * @param  {Service} service  The service object to be affected\n   * @return {Integer}          New index after parsing\n   */\n\n\n  Cea708Stream.prototype.setWindowAttributes = function (i, service) {\n    var packetData = this.current708Packet.data;\n    var b = packetData[i];\n    var winAttr = service.currentWindow.winAttr;\n    b = packetData[++i];\n    winAttr.fillOpacity = (b & 0xc0) >> 6; // fo\n\n    winAttr.fillRed = (b & 0x30) >> 4; // fr\n\n    winAttr.fillGreen = (b & 0x0c) >> 2; // fg\n\n    winAttr.fillBlue = b & 0x03; // fb\n\n    b = packetData[++i];\n    winAttr.borderType = (b & 0xc0) >> 6; // bt\n\n    winAttr.borderRed = (b & 0x30) >> 4; // br\n\n    winAttr.borderGreen = (b & 0x0c) >> 2; // bg\n\n    winAttr.borderBlue = b & 0x03; // bb\n\n    b = packetData[++i];\n    winAttr.borderType += (b & 0x80) >> 5; // bt\n\n    winAttr.wordWrap = (b & 0x40) >> 6; // ww\n\n    winAttr.printDirection = (b & 0x30) >> 4; // pd\n\n    winAttr.scrollDirection = (b & 0x0c) >> 2; // sd\n\n    winAttr.justify = b & 0x03; // j\n\n    b = packetData[++i];\n    winAttr.effectSpeed = (b & 0xf0) >> 4; // es\n\n    winAttr.effectDirection = (b & 0x0c) >> 2; // ed\n\n    winAttr.displayEffect = b & 0x03; // de\n\n    return i;\n  };\n  /**\n   * Gather text from all displayed windows and push a caption to output.\n   *\n   * @param  {Integer} i        Current index in the 708 packet\n   * @param  {Service} service  The service object to be affected\n   */\n\n\n  Cea708Stream.prototype.flushDisplayed = function (pts, service) {\n    var displayedText = []; // TODO: Positioning not supported, displaying multiple windows will not necessarily\n    // display text in the correct order, but sample files so far have not shown any issue.\n\n    for (var winId = 0; winId < 8; winId++) {\n      if (service.windows[winId].visible && !service.windows[winId].isEmpty()) {\n        displayedText.push(service.windows[winId].getText());\n      }\n    }\n\n    service.endPts = pts;\n    service.text = displayedText.join('\\n\\n');\n    this.pushCaption(service);\n    service.startPts = pts;\n  };\n  /**\n   * Push a caption to output if the caption contains text.\n   *\n   * @param  {Service} service  The service object to be affected\n   */\n\n\n  Cea708Stream.prototype.pushCaption = function (service) {\n    if (service.text !== '') {\n      this.trigger('data', {\n        startPts: service.startPts,\n        endPts: service.endPts,\n        text: service.text,\n        stream: 'cc708_' + service.serviceNum\n      });\n      service.text = '';\n      service.startPts = service.endPts;\n    }\n  };\n  /**\n   * Parse and execute the DSW command.\n   *\n   * Set visible property of windows based on the parsed bitmask.\n   *\n   * @param  {Integer} i        Current index in the 708 packet\n   * @param  {Service} service  The service object to be affected\n   * @return {Integer}          New index after parsing\n   */\n\n\n  Cea708Stream.prototype.displayWindows = function (i, service) {\n    var packetData = this.current708Packet.data;\n    var b = packetData[++i];\n    var pts = this.getPts(i);\n    this.flushDisplayed(pts, service);\n\n    for (var winId = 0; winId < 8; winId++) {\n      if (b & 0x01 << winId) {\n        service.windows[winId].visible = 1;\n      }\n    }\n\n    return i;\n  };\n  /**\n   * Parse and execute the HDW command.\n   *\n   * Set visible property of windows based on the parsed bitmask.\n   *\n   * @param  {Integer} i        Current index in the 708 packet\n   * @param  {Service} service  The service object to be affected\n   * @return {Integer}          New index after parsing\n   */\n\n\n  Cea708Stream.prototype.hideWindows = function (i, service) {\n    var packetData = this.current708Packet.data;\n    var b = packetData[++i];\n    var pts = this.getPts(i);\n    this.flushDisplayed(pts, service);\n\n    for (var winId = 0; winId < 8; winId++) {\n      if (b & 0x01 << winId) {\n        service.windows[winId].visible = 0;\n      }\n    }\n\n    return i;\n  };\n  /**\n   * Parse and execute the TGW command.\n   *\n   * Set visible property of windows based on the parsed bitmask.\n   *\n   * @param  {Integer} i        Current index in the 708 packet\n   * @param  {Service} service  The service object to be affected\n   * @return {Integer}          New index after parsing\n   */\n\n\n  Cea708Stream.prototype.toggleWindows = function (i, service) {\n    var packetData = this.current708Packet.data;\n    var b = packetData[++i];\n    var pts = this.getPts(i);\n    this.flushDisplayed(pts, service);\n\n    for (var winId = 0; winId < 8; winId++) {\n      if (b & 0x01 << winId) {\n        service.windows[winId].visible ^= 1;\n      }\n    }\n\n    return i;\n  };\n  /**\n   * Parse and execute the CLW command.\n   *\n   * Clear text of windows based on the parsed bitmask.\n   *\n   * @param  {Integer} i        Current index in the 708 packet\n   * @param  {Service} service  The service object to be affected\n   * @return {Integer}          New index after parsing\n   */\n\n\n  Cea708Stream.prototype.clearWindows = function (i, service) {\n    var packetData = this.current708Packet.data;\n    var b = packetData[++i];\n    var pts = this.getPts(i);\n    this.flushDisplayed(pts, service);\n\n    for (var winId = 0; winId < 8; winId++) {\n      if (b & 0x01 << winId) {\n        service.windows[winId].clearText();\n      }\n    }\n\n    return i;\n  };\n  /**\n   * Parse and execute the DLW command.\n   *\n   * Re-initialize windows based on the parsed bitmask.\n   *\n   * @param  {Integer} i        Current index in the 708 packet\n   * @param  {Service} service  The service object to be affected\n   * @return {Integer}          New index after parsing\n   */\n\n\n  Cea708Stream.prototype.deleteWindows = function (i, service) {\n    var packetData = this.current708Packet.data;\n    var b = packetData[++i];\n    var pts = this.getPts(i);\n    this.flushDisplayed(pts, service);\n\n    for (var winId = 0; winId < 8; winId++) {\n      if (b & 0x01 << winId) {\n        service.windows[winId].reset();\n      }\n    }\n\n    return i;\n  };\n  /**\n   * Parse and execute the SPA command.\n   *\n   * Set pen attributes of the current window.\n   *\n   * @param  {Integer} i        Current index in the 708 packet\n   * @param  {Service} service  The service object to be affected\n   * @return {Integer}          New index after parsing\n   */\n\n\n  Cea708Stream.prototype.setPenAttributes = function (i, service) {\n    var packetData = this.current708Packet.data;\n    var b = packetData[i];\n    var penAttr = service.currentWindow.penAttr;\n    b = packetData[++i];\n    penAttr.textTag = (b & 0xf0) >> 4; // tt\n\n    penAttr.offset = (b & 0x0c) >> 2; // o\n\n    penAttr.penSize = b & 0x03; // s\n\n    b = packetData[++i];\n    penAttr.italics = (b & 0x80) >> 7; // i\n\n    penAttr.underline = (b & 0x40) >> 6; // u\n\n    penAttr.edgeType = (b & 0x38) >> 3; // et\n\n    penAttr.fontStyle = b & 0x07; // fs\n\n    return i;\n  };\n  /**\n   * Parse and execute the SPC command.\n   *\n   * Set pen color of the current window.\n   *\n   * @param  {Integer} i        Current index in the 708 packet\n   * @param  {Service} service  The service object to be affected\n   * @return {Integer}          New index after parsing\n   */\n\n\n  Cea708Stream.prototype.setPenColor = function (i, service) {\n    var packetData = this.current708Packet.data;\n    var b = packetData[i];\n    var penColor = service.currentWindow.penColor;\n    b = packetData[++i];\n    penColor.fgOpacity = (b & 0xc0) >> 6; // fo\n\n    penColor.fgRed = (b & 0x30) >> 4; // fr\n\n    penColor.fgGreen = (b & 0x0c) >> 2; // fg\n\n    penColor.fgBlue = b & 0x03; // fb\n\n    b = packetData[++i];\n    penColor.bgOpacity = (b & 0xc0) >> 6; // bo\n\n    penColor.bgRed = (b & 0x30) >> 4; // br\n\n    penColor.bgGreen = (b & 0x0c) >> 2; // bg\n\n    penColor.bgBlue = b & 0x03; // bb\n\n    b = packetData[++i];\n    penColor.edgeRed = (b & 0x30) >> 4; // er\n\n    penColor.edgeGreen = (b & 0x0c) >> 2; // eg\n\n    penColor.edgeBlue = b & 0x03; // eb\n\n    return i;\n  };\n  /**\n   * Parse and execute the SPL command.\n   *\n   * Set pen location of the current window.\n   *\n   * @param  {Integer} i        Current index in the 708 packet\n   * @param  {Service} service  The service object to be affected\n   * @return {Integer}          New index after parsing\n   */\n\n\n  Cea708Stream.prototype.setPenLocation = function (i, service) {\n    var packetData = this.current708Packet.data;\n    var b = packetData[i];\n    var penLoc = service.currentWindow.penLoc; // Positioning isn't really supported at the moment, so this essentially just inserts a linebreak\n\n    service.currentWindow.pendingNewLine = true;\n    b = packetData[++i];\n    penLoc.row = b & 0x0f; // r\n\n    b = packetData[++i];\n    penLoc.column = b & 0x3f; // c\n\n    return i;\n  };\n  /**\n   * Execute the RST command.\n   *\n   * Reset service to a clean slate. Re-initialize.\n   *\n   * @param  {Integer} i        Current index in the 708 packet\n   * @param  {Service} service  The service object to be affected\n   * @return {Service}          Re-initialized service\n   */\n\n\n  Cea708Stream.prototype.reset = function (i, service) {\n    var pts = this.getPts(i);\n    this.flushDisplayed(pts, service);\n    return this.initService(service.serviceNum, i);\n  }; // This hash maps non-ASCII, special, and extended character codes to their\n  // proper Unicode equivalent. The first keys that are only a single byte\n  // are the non-standard ASCII characters, which simply map the CEA608 byte\n  // to the standard ASCII/Unicode. The two-byte keys that follow are the CEA608\n  // character codes, but have their MSB bitmasked with 0x03 so that a lookup\n  // can be performed regardless of the field and data channel on which the\n  // character code was received.\n\n\n  var CHARACTER_TRANSLATION = {\n    0x2a: 0xe1,\n    // á\n    0x5c: 0xe9,\n    // é\n    0x5e: 0xed,\n    // í\n    0x5f: 0xf3,\n    // ó\n    0x60: 0xfa,\n    // ú\n    0x7b: 0xe7,\n    // ç\n    0x7c: 0xf7,\n    // ÷\n    0x7d: 0xd1,\n    // Ñ\n    0x7e: 0xf1,\n    // ñ\n    0x7f: 0x2588,\n    // █\n    0x0130: 0xae,\n    // ®\n    0x0131: 0xb0,\n    // °\n    0x0132: 0xbd,\n    // ½\n    0x0133: 0xbf,\n    // ¿\n    0x0134: 0x2122,\n    // ™\n    0x0135: 0xa2,\n    // ¢\n    0x0136: 0xa3,\n    // £\n    0x0137: 0x266a,\n    // ♪\n    0x0138: 0xe0,\n    // à\n    0x0139: 0xa0,\n    //\n    0x013a: 0xe8,\n    // è\n    0x013b: 0xe2,\n    // â\n    0x013c: 0xea,\n    // ê\n    0x013d: 0xee,\n    // î\n    0x013e: 0xf4,\n    // ô\n    0x013f: 0xfb,\n    // û\n    0x0220: 0xc1,\n    // Á\n    0x0221: 0xc9,\n    // É\n    0x0222: 0xd3,\n    // Ó\n    0x0223: 0xda,\n    // Ú\n    0x0224: 0xdc,\n    // Ü\n    0x0225: 0xfc,\n    // ü\n    0x0226: 0x2018,\n    // ‘\n    0x0227: 0xa1,\n    // ¡\n    0x0228: 0x2a,\n    // *\n    0x0229: 0x27,\n    // '\n    0x022a: 0x2014,\n    // —\n    0x022b: 0xa9,\n    // ©\n    0x022c: 0x2120,\n    // ℠\n    0x022d: 0x2022,\n    // •\n    0x022e: 0x201c,\n    // “\n    0x022f: 0x201d,\n    // ”\n    0x0230: 0xc0,\n    // À\n    0x0231: 0xc2,\n    // Â\n    0x0232: 0xc7,\n    // Ç\n    0x0233: 0xc8,\n    // È\n    0x0234: 0xca,\n    // Ê\n    0x0235: 0xcb,\n    // Ë\n    0x0236: 0xeb,\n    // ë\n    0x0237: 0xce,\n    // Î\n    0x0238: 0xcf,\n    // Ï\n    0x0239: 0xef,\n    // ï\n    0x023a: 0xd4,\n    // Ô\n    0x023b: 0xd9,\n    // Ù\n    0x023c: 0xf9,\n    // ù\n    0x023d: 0xdb,\n    // Û\n    0x023e: 0xab,\n    // «\n    0x023f: 0xbb,\n    // »\n    0x0320: 0xc3,\n    // Ã\n    0x0321: 0xe3,\n    // ã\n    0x0322: 0xcd,\n    // Í\n    0x0323: 0xcc,\n    // Ì\n    0x0324: 0xec,\n    // ì\n    0x0325: 0xd2,\n    // Ò\n    0x0326: 0xf2,\n    // ò\n    0x0327: 0xd5,\n    // Õ\n    0x0328: 0xf5,\n    // õ\n    0x0329: 0x7b,\n    // {\n    0x032a: 0x7d,\n    // }\n    0x032b: 0x5c,\n    // \\\n    0x032c: 0x5e,\n    // ^\n    0x032d: 0x5f,\n    // _\n    0x032e: 0x7c,\n    // |\n    0x032f: 0x7e,\n    // ~\n    0x0330: 0xc4,\n    // Ä\n    0x0331: 0xe4,\n    // ä\n    0x0332: 0xd6,\n    // Ö\n    0x0333: 0xf6,\n    // ö\n    0x0334: 0xdf,\n    // ß\n    0x0335: 0xa5,\n    // ¥\n    0x0336: 0xa4,\n    // ¤\n    0x0337: 0x2502,\n    // │\n    0x0338: 0xc5,\n    // Å\n    0x0339: 0xe5,\n    // å\n    0x033a: 0xd8,\n    // Ø\n    0x033b: 0xf8,\n    // ø\n    0x033c: 0x250c,\n    // ┌\n    0x033d: 0x2510,\n    // ┐\n    0x033e: 0x2514,\n    // └\n    0x033f: 0x2518 // ┘\n\n  };\n\n  var getCharFromCode = function getCharFromCode(code) {\n    if (code === null) {\n      return '';\n    }\n\n    code = CHARACTER_TRANSLATION[code] || code;\n    return String.fromCharCode(code);\n  }; // the index of the last row in a CEA-608 display buffer\n\n\n  var BOTTOM_ROW = 14; // This array is used for mapping PACs -> row #, since there's no way of\n  // getting it through bit logic.\n\n  var ROWS = [0x1100, 0x1120, 0x1200, 0x1220, 0x1500, 0x1520, 0x1600, 0x1620, 0x1700, 0x1720, 0x1000, 0x1300, 0x1320, 0x1400, 0x1420]; // CEA-608 captions are rendered onto a 34x15 matrix of character\n  // cells. The \"bottom\" row is the last element in the outer array.\n\n  var createDisplayBuffer = function createDisplayBuffer() {\n    var result = [],\n        i = BOTTOM_ROW + 1;\n\n    while (i--) {\n      result.push('');\n    }\n\n    return result;\n  };\n\n  var Cea608Stream = function Cea608Stream(field, dataChannel) {\n    Cea608Stream.prototype.init.call(this);\n    this.field_ = field || 0;\n    this.dataChannel_ = dataChannel || 0;\n    this.name_ = 'CC' + ((this.field_ << 1 | this.dataChannel_) + 1);\n    this.setConstants();\n    this.reset();\n\n    this.push = function (packet) {\n      var data, swap, char0, char1, text; // remove the parity bits\n\n      data = packet.ccData & 0x7f7f; // ignore duplicate control codes; the spec demands they're sent twice\n\n      if (data === this.lastControlCode_) {\n        this.lastControlCode_ = null;\n        return;\n      } // Store control codes\n\n\n      if ((data & 0xf000) === 0x1000) {\n        this.lastControlCode_ = data;\n      } else if (data !== this.PADDING_) {\n        this.lastControlCode_ = null;\n      }\n\n      char0 = data >>> 8;\n      char1 = data & 0xff;\n\n      if (data === this.PADDING_) {\n        return;\n      } else if (data === this.RESUME_CAPTION_LOADING_) {\n        this.mode_ = 'popOn';\n      } else if (data === this.END_OF_CAPTION_) {\n        // If an EOC is received while in paint-on mode, the displayed caption\n        // text should be swapped to non-displayed memory as if it was a pop-on\n        // caption. Because of that, we should explicitly switch back to pop-on\n        // mode\n        this.mode_ = 'popOn';\n        this.clearFormatting(packet.pts); // if a caption was being displayed, it's gone now\n\n        this.flushDisplayed(packet.pts); // flip memory\n\n        swap = this.displayed_;\n        this.displayed_ = this.nonDisplayed_;\n        this.nonDisplayed_ = swap; // start measuring the time to display the caption\n\n        this.startPts_ = packet.pts;\n      } else if (data === this.ROLL_UP_2_ROWS_) {\n        this.rollUpRows_ = 2;\n        this.setRollUp(packet.pts);\n      } else if (data === this.ROLL_UP_3_ROWS_) {\n        this.rollUpRows_ = 3;\n        this.setRollUp(packet.pts);\n      } else if (data === this.ROLL_UP_4_ROWS_) {\n        this.rollUpRows_ = 4;\n        this.setRollUp(packet.pts);\n      } else if (data === this.CARRIAGE_RETURN_) {\n        this.clearFormatting(packet.pts);\n        this.flushDisplayed(packet.pts);\n        this.shiftRowsUp_();\n        this.startPts_ = packet.pts;\n      } else if (data === this.BACKSPACE_) {\n        if (this.mode_ === 'popOn') {\n          this.nonDisplayed_[this.row_] = this.nonDisplayed_[this.row_].slice(0, -1);\n        } else {\n          this.displayed_[this.row_] = this.displayed_[this.row_].slice(0, -1);\n        }\n      } else if (data === this.ERASE_DISPLAYED_MEMORY_) {\n        this.flushDisplayed(packet.pts);\n        this.displayed_ = createDisplayBuffer();\n      } else if (data === this.ERASE_NON_DISPLAYED_MEMORY_) {\n        this.nonDisplayed_ = createDisplayBuffer();\n      } else if (data === this.RESUME_DIRECT_CAPTIONING_) {\n        if (this.mode_ !== 'paintOn') {\n          // NOTE: This should be removed when proper caption positioning is\n          // implemented\n          this.flushDisplayed(packet.pts);\n          this.displayed_ = createDisplayBuffer();\n        }\n\n        this.mode_ = 'paintOn';\n        this.startPts_ = packet.pts; // Append special characters to caption text\n      } else if (this.isSpecialCharacter(char0, char1)) {\n        // Bitmask char0 so that we can apply character transformations\n        // regardless of field and data channel.\n        // Then byte-shift to the left and OR with char1 so we can pass the\n        // entire character code to `getCharFromCode`.\n        char0 = (char0 & 0x03) << 8;\n        text = getCharFromCode(char0 | char1);\n        this[this.mode_](packet.pts, text);\n        this.column_++; // Append extended characters to caption text\n      } else if (this.isExtCharacter(char0, char1)) {\n        // Extended characters always follow their \"non-extended\" equivalents.\n        // IE if a \"è\" is desired, you'll always receive \"eè\"; non-compliant\n        // decoders are supposed to drop the \"è\", while compliant decoders\n        // backspace the \"e\" and insert \"è\".\n        // Delete the previous character\n        if (this.mode_ === 'popOn') {\n          this.nonDisplayed_[this.row_] = this.nonDisplayed_[this.row_].slice(0, -1);\n        } else {\n          this.displayed_[this.row_] = this.displayed_[this.row_].slice(0, -1);\n        } // Bitmask char0 so that we can apply character transformations\n        // regardless of field and data channel.\n        // Then byte-shift to the left and OR with char1 so we can pass the\n        // entire character code to `getCharFromCode`.\n\n\n        char0 = (char0 & 0x03) << 8;\n        text = getCharFromCode(char0 | char1);\n        this[this.mode_](packet.pts, text);\n        this.column_++; // Process mid-row codes\n      } else if (this.isMidRowCode(char0, char1)) {\n        // Attributes are not additive, so clear all formatting\n        this.clearFormatting(packet.pts); // According to the standard, mid-row codes\n        // should be replaced with spaces, so add one now\n\n        this[this.mode_](packet.pts, ' ');\n        this.column_++;\n\n        if ((char1 & 0xe) === 0xe) {\n          this.addFormatting(packet.pts, ['i']);\n        }\n\n        if ((char1 & 0x1) === 0x1) {\n          this.addFormatting(packet.pts, ['u']);\n        } // Detect offset control codes and adjust cursor\n\n      } else if (this.isOffsetControlCode(char0, char1)) {\n        // Cursor position is set by indent PAC (see below) in 4-column\n        // increments, with an additional offset code of 1-3 to reach any\n        // of the 32 columns specified by CEA-608. So all we need to do\n        // here is increment the column cursor by the given offset.\n        this.column_ += char1 & 0x03; // Detect PACs (Preamble Address Codes)\n      } else if (this.isPAC(char0, char1)) {\n        // There's no logic for PAC -> row mapping, so we have to just\n        // find the row code in an array and use its index :(\n        var row = ROWS.indexOf(data & 0x1f20); // Configure the caption window if we're in roll-up mode\n\n        if (this.mode_ === 'rollUp') {\n          // This implies that the base row is incorrectly set.\n          // As per the recommendation in CEA-608(Base Row Implementation), defer to the number\n          // of roll-up rows set.\n          if (row - this.rollUpRows_ + 1 < 0) {\n            row = this.rollUpRows_ - 1;\n          }\n\n          this.setRollUp(packet.pts, row);\n        }\n\n        if (row !== this.row_) {\n          // formatting is only persistent for current row\n          this.clearFormatting(packet.pts);\n          this.row_ = row;\n        } // All PACs can apply underline, so detect and apply\n        // (All odd-numbered second bytes set underline)\n\n\n        if (char1 & 0x1 && this.formatting_.indexOf('u') === -1) {\n          this.addFormatting(packet.pts, ['u']);\n        }\n\n        if ((data & 0x10) === 0x10) {\n          // We've got an indent level code. Each successive even number\n          // increments the column cursor by 4, so we can get the desired\n          // column position by bit-shifting to the right (to get n/2)\n          // and multiplying by 4.\n          this.column_ = ((data & 0xe) >> 1) * 4;\n        }\n\n        if (this.isColorPAC(char1)) {\n          // it's a color code, though we only support white, which\n          // can be either normal or italicized. white italics can be\n          // either 0x4e or 0x6e depending on the row, so we just\n          // bitwise-and with 0xe to see if italics should be turned on\n          if ((char1 & 0xe) === 0xe) {\n            this.addFormatting(packet.pts, ['i']);\n          }\n        } // We have a normal character in char0, and possibly one in char1\n\n      } else if (this.isNormalChar(char0)) {\n        if (char1 === 0x00) {\n          char1 = null;\n        }\n\n        text = getCharFromCode(char0);\n        text += getCharFromCode(char1);\n        this[this.mode_](packet.pts, text);\n        this.column_ += text.length;\n      } // finish data processing\n\n    };\n  };\n\n  Cea608Stream.prototype = new stream(); // Trigger a cue point that captures the current state of the\n  // display buffer\n\n  Cea608Stream.prototype.flushDisplayed = function (pts) {\n    var content = this.displayed_ // remove spaces from the start and end of the string\n    .map(function (row, index) {\n      try {\n        return row.trim();\n      } catch (e) {\n        // Ordinarily, this shouldn't happen. However, caption\n        // parsing errors should not throw exceptions and\n        // break playback.\n        this.trigger('log', {\n          level: 'warn',\n          message: 'Skipping a malformed 608 caption at index ' + index + '.'\n        });\n        return '';\n      }\n    }, this) // combine all text rows to display in one cue\n    .join('\\n') // and remove blank rows from the start and end, but not the middle\n    .replace(/^\\n+|\\n+$/g, '');\n\n    if (content.length) {\n      this.trigger('data', {\n        startPts: this.startPts_,\n        endPts: pts,\n        text: content,\n        stream: this.name_\n      });\n    }\n  };\n  /**\n   * Zero out the data, used for startup and on seek\n   */\n\n\n  Cea608Stream.prototype.reset = function () {\n    this.mode_ = 'popOn'; // When in roll-up mode, the index of the last row that will\n    // actually display captions. If a caption is shifted to a row\n    // with a lower index than this, it is cleared from the display\n    // buffer\n\n    this.topRow_ = 0;\n    this.startPts_ = 0;\n    this.displayed_ = createDisplayBuffer();\n    this.nonDisplayed_ = createDisplayBuffer();\n    this.lastControlCode_ = null; // Track row and column for proper line-breaking and spacing\n\n    this.column_ = 0;\n    this.row_ = BOTTOM_ROW;\n    this.rollUpRows_ = 2; // This variable holds currently-applied formatting\n\n    this.formatting_ = [];\n  };\n  /**\n   * Sets up control code and related constants for this instance\n   */\n\n\n  Cea608Stream.prototype.setConstants = function () {\n    // The following attributes have these uses:\n    // ext_ :    char0 for mid-row codes, and the base for extended\n    //           chars (ext_+0, ext_+1, and ext_+2 are char0s for\n    //           extended codes)\n    // control_: char0 for control codes, except byte-shifted to the\n    //           left so that we can do this.control_ | CONTROL_CODE\n    // offset_:  char0 for tab offset codes\n    //\n    // It's also worth noting that control codes, and _only_ control codes,\n    // differ between field 1 and field2. Field 2 control codes are always\n    // their field 1 value plus 1. That's why there's the \"| field\" on the\n    // control value.\n    if (this.dataChannel_ === 0) {\n      this.BASE_ = 0x10;\n      this.EXT_ = 0x11;\n      this.CONTROL_ = (0x14 | this.field_) << 8;\n      this.OFFSET_ = 0x17;\n    } else if (this.dataChannel_ === 1) {\n      this.BASE_ = 0x18;\n      this.EXT_ = 0x19;\n      this.CONTROL_ = (0x1c | this.field_) << 8;\n      this.OFFSET_ = 0x1f;\n    } // Constants for the LSByte command codes recognized by Cea608Stream. This\n    // list is not exhaustive. For a more comprehensive listing and semantics see\n    // http://www.gpo.gov/fdsys/pkg/CFR-2010-title47-vol1/pdf/CFR-2010-title47-vol1-sec15-119.pdf\n    // Padding\n\n\n    this.PADDING_ = 0x0000; // Pop-on Mode\n\n    this.RESUME_CAPTION_LOADING_ = this.CONTROL_ | 0x20;\n    this.END_OF_CAPTION_ = this.CONTROL_ | 0x2f; // Roll-up Mode\n\n    this.ROLL_UP_2_ROWS_ = this.CONTROL_ | 0x25;\n    this.ROLL_UP_3_ROWS_ = this.CONTROL_ | 0x26;\n    this.ROLL_UP_4_ROWS_ = this.CONTROL_ | 0x27;\n    this.CARRIAGE_RETURN_ = this.CONTROL_ | 0x2d; // paint-on mode\n\n    this.RESUME_DIRECT_CAPTIONING_ = this.CONTROL_ | 0x29; // Erasure\n\n    this.BACKSPACE_ = this.CONTROL_ | 0x21;\n    this.ERASE_DISPLAYED_MEMORY_ = this.CONTROL_ | 0x2c;\n    this.ERASE_NON_DISPLAYED_MEMORY_ = this.CONTROL_ | 0x2e;\n  };\n  /**\n   * Detects if the 2-byte packet data is a special character\n   *\n   * Special characters have a second byte in the range 0x30 to 0x3f,\n   * with the first byte being 0x11 (for data channel 1) or 0x19 (for\n   * data channel 2).\n   *\n   * @param  {Integer} char0 The first byte\n   * @param  {Integer} char1 The second byte\n   * @return {Boolean}       Whether the 2 bytes are an special character\n   */\n\n\n  Cea608Stream.prototype.isSpecialCharacter = function (char0, char1) {\n    return char0 === this.EXT_ && char1 >= 0x30 && char1 <= 0x3f;\n  };\n  /**\n   * Detects if the 2-byte packet data is an extended character\n   *\n   * Extended characters have a second byte in the range 0x20 to 0x3f,\n   * with the first byte being 0x12 or 0x13 (for data channel 1) or\n   * 0x1a or 0x1b (for data channel 2).\n   *\n   * @param  {Integer} char0 The first byte\n   * @param  {Integer} char1 The second byte\n   * @return {Boolean}       Whether the 2 bytes are an extended character\n   */\n\n\n  Cea608Stream.prototype.isExtCharacter = function (char0, char1) {\n    return (char0 === this.EXT_ + 1 || char0 === this.EXT_ + 2) && char1 >= 0x20 && char1 <= 0x3f;\n  };\n  /**\n   * Detects if the 2-byte packet is a mid-row code\n   *\n   * Mid-row codes have a second byte in the range 0x20 to 0x2f, with\n   * the first byte being 0x11 (for data channel 1) or 0x19 (for data\n   * channel 2).\n   *\n   * @param  {Integer} char0 The first byte\n   * @param  {Integer} char1 The second byte\n   * @return {Boolean}       Whether the 2 bytes are a mid-row code\n   */\n\n\n  Cea608Stream.prototype.isMidRowCode = function (char0, char1) {\n    return char0 === this.EXT_ && char1 >= 0x20 && char1 <= 0x2f;\n  };\n  /**\n   * Detects if the 2-byte packet is an offset control code\n   *\n   * Offset control codes have a second byte in the range 0x21 to 0x23,\n   * with the first byte being 0x17 (for data channel 1) or 0x1f (for\n   * data channel 2).\n   *\n   * @param  {Integer} char0 The first byte\n   * @param  {Integer} char1 The second byte\n   * @return {Boolean}       Whether the 2 bytes are an offset control code\n   */\n\n\n  Cea608Stream.prototype.isOffsetControlCode = function (char0, char1) {\n    return char0 === this.OFFSET_ && char1 >= 0x21 && char1 <= 0x23;\n  };\n  /**\n   * Detects if the 2-byte packet is a Preamble Address Code\n   *\n   * PACs have a first byte in the range 0x10 to 0x17 (for data channel 1)\n   * or 0x18 to 0x1f (for data channel 2), with the second byte in the\n   * range 0x40 to 0x7f.\n   *\n   * @param  {Integer} char0 The first byte\n   * @param  {Integer} char1 The second byte\n   * @return {Boolean}       Whether the 2 bytes are a PAC\n   */\n\n\n  Cea608Stream.prototype.isPAC = function (char0, char1) {\n    return char0 >= this.BASE_ && char0 < this.BASE_ + 8 && char1 >= 0x40 && char1 <= 0x7f;\n  };\n  /**\n   * Detects if a packet's second byte is in the range of a PAC color code\n   *\n   * PAC color codes have the second byte be in the range 0x40 to 0x4f, or\n   * 0x60 to 0x6f.\n   *\n   * @param  {Integer} char1 The second byte\n   * @return {Boolean}       Whether the byte is a color PAC\n   */\n\n\n  Cea608Stream.prototype.isColorPAC = function (char1) {\n    return char1 >= 0x40 && char1 <= 0x4f || char1 >= 0x60 && char1 <= 0x7f;\n  };\n  /**\n   * Detects if a single byte is in the range of a normal character\n   *\n   * Normal text bytes are in the range 0x20 to 0x7f.\n   *\n   * @param  {Integer} char  The byte\n   * @return {Boolean}       Whether the byte is a normal character\n   */\n\n\n  Cea608Stream.prototype.isNormalChar = function (_char2) {\n    return _char2 >= 0x20 && _char2 <= 0x7f;\n  };\n  /**\n   * Configures roll-up\n   *\n   * @param  {Integer} pts         Current PTS\n   * @param  {Integer} newBaseRow  Used by PACs to slide the current window to\n   *                               a new position\n   */\n\n\n  Cea608Stream.prototype.setRollUp = function (pts, newBaseRow) {\n    // Reset the base row to the bottom row when switching modes\n    if (this.mode_ !== 'rollUp') {\n      this.row_ = BOTTOM_ROW;\n      this.mode_ = 'rollUp'; // Spec says to wipe memories when switching to roll-up\n\n      this.flushDisplayed(pts);\n      this.nonDisplayed_ = createDisplayBuffer();\n      this.displayed_ = createDisplayBuffer();\n    }\n\n    if (newBaseRow !== undefined && newBaseRow !== this.row_) {\n      // move currently displayed captions (up or down) to the new base row\n      for (var i = 0; i < this.rollUpRows_; i++) {\n        this.displayed_[newBaseRow - i] = this.displayed_[this.row_ - i];\n        this.displayed_[this.row_ - i] = '';\n      }\n    }\n\n    if (newBaseRow === undefined) {\n      newBaseRow = this.row_;\n    }\n\n    this.topRow_ = newBaseRow - this.rollUpRows_ + 1;\n  }; // Adds the opening HTML tag for the passed character to the caption text,\n  // and keeps track of it for later closing\n\n\n  Cea608Stream.prototype.addFormatting = function (pts, format) {\n    this.formatting_ = this.formatting_.concat(format);\n    var text = format.reduce(function (text, format) {\n      return text + '<' + format + '>';\n    }, '');\n    this[this.mode_](pts, text);\n  }; // Adds HTML closing tags for current formatting to caption text and\n  // clears remembered formatting\n\n\n  Cea608Stream.prototype.clearFormatting = function (pts) {\n    if (!this.formatting_.length) {\n      return;\n    }\n\n    var text = this.formatting_.reverse().reduce(function (text, format) {\n      return text + '</' + format + '>';\n    }, '');\n    this.formatting_ = [];\n    this[this.mode_](pts, text);\n  }; // Mode Implementations\n\n\n  Cea608Stream.prototype.popOn = function (pts, text) {\n    var baseRow = this.nonDisplayed_[this.row_]; // buffer characters\n\n    baseRow += text;\n    this.nonDisplayed_[this.row_] = baseRow;\n  };\n\n  Cea608Stream.prototype.rollUp = function (pts, text) {\n    var baseRow = this.displayed_[this.row_];\n    baseRow += text;\n    this.displayed_[this.row_] = baseRow;\n  };\n\n  Cea608Stream.prototype.shiftRowsUp_ = function () {\n    var i; // clear out inactive rows\n\n    for (i = 0; i < this.topRow_; i++) {\n      this.displayed_[i] = '';\n    }\n\n    for (i = this.row_ + 1; i < BOTTOM_ROW + 1; i++) {\n      this.displayed_[i] = '';\n    } // shift displayed rows up\n\n\n    for (i = this.topRow_; i < this.row_; i++) {\n      this.displayed_[i] = this.displayed_[i + 1];\n    } // clear out the bottom row\n\n\n    this.displayed_[this.row_] = '';\n  };\n\n  Cea608Stream.prototype.paintOn = function (pts, text) {\n    var baseRow = this.displayed_[this.row_];\n    baseRow += text;\n    this.displayed_[this.row_] = baseRow;\n  }; // exports\n\n\n  var captionStream = {\n    CaptionStream: CaptionStream$1,\n    Cea608Stream: Cea608Stream,\n    Cea708Stream: Cea708Stream\n  };\n  /**\n   * mux.js\n   *\n   * Copyright (c) Brightcove\n   * Licensed Apache-2.0 https://github.com/videojs/mux.js/blob/master/LICENSE\n   */\n\n  var streamTypes = {\n    H264_STREAM_TYPE: 0x1B,\n    ADTS_STREAM_TYPE: 0x0F,\n    METADATA_STREAM_TYPE: 0x15\n  };\n  var MAX_TS = 8589934592;\n  var RO_THRESH = 4294967296;\n  var TYPE_SHARED = 'shared';\n\n  var handleRollover$1 = function handleRollover(value, reference) {\n    var direction = 1;\n\n    if (value > reference) {\n      // If the current timestamp value is greater than our reference timestamp and we detect a\n      // timestamp rollover, this means the roll over is happening in the opposite direction.\n      // Example scenario: Enter a long stream/video just after a rollover occurred. The reference\n      // point will be set to a small number, e.g. 1. The user then seeks backwards over the\n      // rollover point. In loading this segment, the timestamp values will be very large,\n      // e.g. 2^33 - 1. Since this comes before the data we loaded previously, we want to adjust\n      // the time stamp to be `value - 2^33`.\n      direction = -1;\n    } // Note: A seek forwards or back that is greater than the RO_THRESH (2^32, ~13 hours) will\n    // cause an incorrect adjustment.\n\n\n    while (Math.abs(reference - value) > RO_THRESH) {\n      value += direction * MAX_TS;\n    }\n\n    return value;\n  };\n\n  var TimestampRolloverStream$1 = function TimestampRolloverStream(type) {\n    var lastDTS, referenceDTS;\n    TimestampRolloverStream.prototype.init.call(this); // The \"shared\" type is used in cases where a stream will contain muxed\n    // video and audio. We could use `undefined` here, but having a string\n    // makes debugging a little clearer.\n\n    this.type_ = type || TYPE_SHARED;\n\n    this.push = function (data) {\n      // Any \"shared\" rollover streams will accept _all_ data. Otherwise,\n      // streams will only accept data that matches their type.\n      if (this.type_ !== TYPE_SHARED && data.type !== this.type_) {\n        return;\n      }\n\n      if (referenceDTS === undefined) {\n        referenceDTS = data.dts;\n      }\n\n      data.dts = handleRollover$1(data.dts, referenceDTS);\n      data.pts = handleRollover$1(data.pts, referenceDTS);\n      lastDTS = data.dts;\n      this.trigger('data', data);\n    };\n\n    this.flush = function () {\n      referenceDTS = lastDTS;\n      this.trigger('done');\n    };\n\n    this.endTimeline = function () {\n      this.flush();\n      this.trigger('endedtimeline');\n    };\n\n    this.discontinuity = function () {\n      referenceDTS = void 0;\n      lastDTS = void 0;\n    };\n\n    this.reset = function () {\n      this.discontinuity();\n      this.trigger('reset');\n    };\n  };\n\n  TimestampRolloverStream$1.prototype = new stream();\n  var timestampRolloverStream = {\n    TimestampRolloverStream: TimestampRolloverStream$1,\n    handleRollover: handleRollover$1\n  };\n\n  var percentEncode$1 = function percentEncode(bytes, start, end) {\n    var i,\n        result = '';\n\n    for (i = start; i < end; i++) {\n      result += '%' + ('00' + bytes[i].toString(16)).slice(-2);\n    }\n\n    return result;\n  },\n      // return the string representation of the specified byte range,\n  // interpreted as UTf-8.\n  parseUtf8 = function parseUtf8(bytes, start, end) {\n    return decodeURIComponent(percentEncode$1(bytes, start, end));\n  },\n      // return the string representation of the specified byte range,\n  // interpreted as ISO-8859-1.\n  parseIso88591$1 = function parseIso88591(bytes, start, end) {\n    return unescape(percentEncode$1(bytes, start, end)); // jshint ignore:line\n  },\n      parseSyncSafeInteger$1 = function parseSyncSafeInteger(data) {\n    return data[0] << 21 | data[1] << 14 | data[2] << 7 | data[3];\n  },\n      tagParsers = {\n    TXXX: function TXXX(tag) {\n      var i;\n\n      if (tag.data[0] !== 3) {\n        // ignore frames with unrecognized character encodings\n        return;\n      }\n\n      for (i = 1; i < tag.data.length; i++) {\n        if (tag.data[i] === 0) {\n          // parse the text fields\n          tag.description = parseUtf8(tag.data, 1, i); // do not include the null terminator in the tag value\n\n          tag.value = parseUtf8(tag.data, i + 1, tag.data.length).replace(/\\0*$/, '');\n          break;\n        }\n      }\n\n      tag.data = tag.value;\n    },\n    WXXX: function WXXX(tag) {\n      var i;\n\n      if (tag.data[0] !== 3) {\n        // ignore frames with unrecognized character encodings\n        return;\n      }\n\n      for (i = 1; i < tag.data.length; i++) {\n        if (tag.data[i] === 0) {\n          // parse the description and URL fields\n          tag.description = parseUtf8(tag.data, 1, i);\n          tag.url = parseUtf8(tag.data, i + 1, tag.data.length);\n          break;\n        }\n      }\n    },\n    PRIV: function PRIV(tag) {\n      var i;\n\n      for (i = 0; i < tag.data.length; i++) {\n        if (tag.data[i] === 0) {\n          // parse the description and URL fields\n          tag.owner = parseIso88591$1(tag.data, 0, i);\n          break;\n        }\n      }\n\n      tag.privateData = tag.data.subarray(i + 1);\n      tag.data = tag.privateData;\n    }\n  },\n      _MetadataStream;\n\n  _MetadataStream = function MetadataStream(options) {\n    var settings = {\n      // the bytes of the program-level descriptor field in MP2T\n      // see ISO/IEC 13818-1:2013 (E), section 2.6 \"Program and\n      // program element descriptors\"\n      descriptor: options && options.descriptor\n    },\n        // the total size in bytes of the ID3 tag being parsed\n    tagSize = 0,\n        // tag data that is not complete enough to be parsed\n    buffer = [],\n        // the total number of bytes currently in the buffer\n    bufferSize = 0,\n        i;\n\n    _MetadataStream.prototype.init.call(this); // calculate the text track in-band metadata track dispatch type\n    // https://html.spec.whatwg.org/multipage/embedded-content.html#steps-to-expose-a-media-resource-specific-text-track\n\n\n    this.dispatchType = streamTypes.METADATA_STREAM_TYPE.toString(16);\n\n    if (settings.descriptor) {\n      for (i = 0; i < settings.descriptor.length; i++) {\n        this.dispatchType += ('00' + settings.descriptor[i].toString(16)).slice(-2);\n      }\n    }\n\n    this.push = function (chunk) {\n      var tag, frameStart, frameSize, frame, i, frameHeader;\n\n      if (chunk.type !== 'timed-metadata') {\n        return;\n      } // if data_alignment_indicator is set in the PES header,\n      // we must have the start of a new ID3 tag. Assume anything\n      // remaining in the buffer was malformed and throw it out\n\n\n      if (chunk.dataAlignmentIndicator) {\n        bufferSize = 0;\n        buffer.length = 0;\n      } // ignore events that don't look like ID3 data\n\n\n      if (buffer.length === 0 && (chunk.data.length < 10 || chunk.data[0] !== 'I'.charCodeAt(0) || chunk.data[1] !== 'D'.charCodeAt(0) || chunk.data[2] !== '3'.charCodeAt(0))) {\n        this.trigger('log', {\n          level: 'warn',\n          message: 'Skipping unrecognized metadata packet'\n        });\n        return;\n      } // add this chunk to the data we've collected so far\n\n\n      buffer.push(chunk);\n      bufferSize += chunk.data.byteLength; // grab the size of the entire frame from the ID3 header\n\n      if (buffer.length === 1) {\n        // the frame size is transmitted as a 28-bit integer in the\n        // last four bytes of the ID3 header.\n        // The most significant bit of each byte is dropped and the\n        // results concatenated to recover the actual value.\n        tagSize = parseSyncSafeInteger$1(chunk.data.subarray(6, 10)); // ID3 reports the tag size excluding the header but it's more\n        // convenient for our comparisons to include it\n\n        tagSize += 10;\n      } // if the entire frame has not arrived, wait for more data\n\n\n      if (bufferSize < tagSize) {\n        return;\n      } // collect the entire frame so it can be parsed\n\n\n      tag = {\n        data: new Uint8Array(tagSize),\n        frames: [],\n        pts: buffer[0].pts,\n        dts: buffer[0].dts\n      };\n\n      for (i = 0; i < tagSize;) {\n        tag.data.set(buffer[0].data.subarray(0, tagSize - i), i);\n        i += buffer[0].data.byteLength;\n        bufferSize -= buffer[0].data.byteLength;\n        buffer.shift();\n      } // find the start of the first frame and the end of the tag\n\n\n      frameStart = 10;\n\n      if (tag.data[5] & 0x40) {\n        // advance the frame start past the extended header\n        frameStart += 4; // header size field\n\n        frameStart += parseSyncSafeInteger$1(tag.data.subarray(10, 14)); // clip any padding off the end\n\n        tagSize -= parseSyncSafeInteger$1(tag.data.subarray(16, 20));\n      } // parse one or more ID3 frames\n      // http://id3.org/id3v2.3.0#ID3v2_frame_overview\n\n\n      do {\n        // determine the number of bytes in this frame\n        frameSize = parseSyncSafeInteger$1(tag.data.subarray(frameStart + 4, frameStart + 8));\n\n        if (frameSize < 1) {\n          this.trigger('log', {\n            level: 'warn',\n            message: 'Malformed ID3 frame encountered. Skipping metadata parsing.'\n          });\n          return;\n        }\n\n        frameHeader = String.fromCharCode(tag.data[frameStart], tag.data[frameStart + 1], tag.data[frameStart + 2], tag.data[frameStart + 3]);\n        frame = {\n          id: frameHeader,\n          data: tag.data.subarray(frameStart + 10, frameStart + frameSize + 10)\n        };\n        frame.key = frame.id;\n\n        if (tagParsers[frame.id]) {\n          tagParsers[frame.id](frame); // handle the special PRIV frame used to indicate the start\n          // time for raw AAC data\n\n          if (frame.owner === 'com.apple.streaming.transportStreamTimestamp') {\n            var d = frame.data,\n                size = (d[3] & 0x01) << 30 | d[4] << 22 | d[5] << 14 | d[6] << 6 | d[7] >>> 2;\n            size *= 4;\n            size += d[7] & 0x03;\n            frame.timeStamp = size; // in raw AAC, all subsequent data will be timestamped based\n            // on the value of this frame\n            // we couldn't have known the appropriate pts and dts before\n            // parsing this ID3 tag so set those values now\n\n            if (tag.pts === undefined && tag.dts === undefined) {\n              tag.pts = frame.timeStamp;\n              tag.dts = frame.timeStamp;\n            }\n\n            this.trigger('timestamp', frame);\n          }\n        }\n\n        tag.frames.push(frame);\n        frameStart += 10; // advance past the frame header\n\n        frameStart += frameSize; // advance past the frame body\n      } while (frameStart < tagSize);\n\n      this.trigger('data', tag);\n    };\n  };\n\n  _MetadataStream.prototype = new stream();\n  var metadataStream = _MetadataStream;\n  var TimestampRolloverStream = timestampRolloverStream.TimestampRolloverStream; // object types\n\n  var _TransportPacketStream, _TransportParseStream, _ElementaryStream; // constants\n\n\n  var MP2T_PACKET_LENGTH$1 = 188,\n      // bytes\n  SYNC_BYTE$1 = 0x47;\n  /**\n   * Splits an incoming stream of binary data into MPEG-2 Transport\n   * Stream packets.\n   */\n\n  _TransportPacketStream = function TransportPacketStream() {\n    var buffer = new Uint8Array(MP2T_PACKET_LENGTH$1),\n        bytesInBuffer = 0;\n\n    _TransportPacketStream.prototype.init.call(this); // Deliver new bytes to the stream.\n\n    /**\n     * Split a stream of data into M2TS packets\n    **/\n\n\n    this.push = function (bytes) {\n      var startIndex = 0,\n          endIndex = MP2T_PACKET_LENGTH$1,\n          everything; // If there are bytes remaining from the last segment, prepend them to the\n      // bytes that were pushed in\n\n      if (bytesInBuffer) {\n        everything = new Uint8Array(bytes.byteLength + bytesInBuffer);\n        everything.set(buffer.subarray(0, bytesInBuffer));\n        everything.set(bytes, bytesInBuffer);\n        bytesInBuffer = 0;\n      } else {\n        everything = bytes;\n      } // While we have enough data for a packet\n\n\n      while (endIndex < everything.byteLength) {\n        // Look for a pair of start and end sync bytes in the data..\n        if (everything[startIndex] === SYNC_BYTE$1 && everything[endIndex] === SYNC_BYTE$1) {\n          // We found a packet so emit it and jump one whole packet forward in\n          // the stream\n          this.trigger('data', everything.subarray(startIndex, endIndex));\n          startIndex += MP2T_PACKET_LENGTH$1;\n          endIndex += MP2T_PACKET_LENGTH$1;\n          continue;\n        } // If we get here, we have somehow become de-synchronized and we need to step\n        // forward one byte at a time until we find a pair of sync bytes that denote\n        // a packet\n\n\n        startIndex++;\n        endIndex++;\n      } // If there was some data left over at the end of the segment that couldn't\n      // possibly be a whole packet, keep it because it might be the start of a packet\n      // that continues in the next segment\n\n\n      if (startIndex < everything.byteLength) {\n        buffer.set(everything.subarray(startIndex), 0);\n        bytesInBuffer = everything.byteLength - startIndex;\n      }\n    };\n    /**\n     * Passes identified M2TS packets to the TransportParseStream to be parsed\n    **/\n\n\n    this.flush = function () {\n      // If the buffer contains a whole packet when we are being flushed, emit it\n      // and empty the buffer. Otherwise hold onto the data because it may be\n      // important for decoding the next segment\n      if (bytesInBuffer === MP2T_PACKET_LENGTH$1 && buffer[0] === SYNC_BYTE$1) {\n        this.trigger('data', buffer);\n        bytesInBuffer = 0;\n      }\n\n      this.trigger('done');\n    };\n\n    this.endTimeline = function () {\n      this.flush();\n      this.trigger('endedtimeline');\n    };\n\n    this.reset = function () {\n      bytesInBuffer = 0;\n      this.trigger('reset');\n    };\n  };\n\n  _TransportPacketStream.prototype = new stream();\n  /**\n   * Accepts an MP2T TransportPacketStream and emits data events with parsed\n   * forms of the individual transport stream packets.\n   */\n\n  _TransportParseStream = function TransportParseStream() {\n    var parsePsi, parsePat, parsePmt, self;\n\n    _TransportParseStream.prototype.init.call(this);\n\n    self = this;\n    this.packetsWaitingForPmt = [];\n    this.programMapTable = undefined;\n\n    parsePsi = function parsePsi(payload, psi) {\n      var offset = 0; // PSI packets may be split into multiple sections and those\n      // sections may be split into multiple packets. If a PSI\n      // section starts in this packet, the payload_unit_start_indicator\n      // will be true and the first byte of the payload will indicate\n      // the offset from the current position to the start of the\n      // section.\n\n      if (psi.payloadUnitStartIndicator) {\n        offset += payload[offset] + 1;\n      }\n\n      if (psi.type === 'pat') {\n        parsePat(payload.subarray(offset), psi);\n      } else {\n        parsePmt(payload.subarray(offset), psi);\n      }\n    };\n\n    parsePat = function parsePat(payload, pat) {\n      pat.section_number = payload[7]; // eslint-disable-line camelcase\n\n      pat.last_section_number = payload[8]; // eslint-disable-line camelcase\n      // skip the PSI header and parse the first PMT entry\n\n      self.pmtPid = (payload[10] & 0x1F) << 8 | payload[11];\n      pat.pmtPid = self.pmtPid;\n    };\n    /**\n     * Parse out the relevant fields of a Program Map Table (PMT).\n     * @param payload {Uint8Array} the PMT-specific portion of an MP2T\n     * packet. The first byte in this array should be the table_id\n     * field.\n     * @param pmt {object} the object that should be decorated with\n     * fields parsed from the PMT.\n     */\n\n\n    parsePmt = function parsePmt(payload, pmt) {\n      var sectionLength, tableEnd, programInfoLength, offset; // PMTs can be sent ahead of the time when they should actually\n      // take effect. We don't believe this should ever be the case\n      // for HLS but we'll ignore \"forward\" PMT declarations if we see\n      // them. Future PMT declarations have the current_next_indicator\n      // set to zero.\n\n      if (!(payload[5] & 0x01)) {\n        return;\n      } // overwrite any existing program map table\n\n\n      self.programMapTable = {\n        video: null,\n        audio: null,\n        'timed-metadata': {}\n      }; // the mapping table ends at the end of the current section\n\n      sectionLength = (payload[1] & 0x0f) << 8 | payload[2];\n      tableEnd = 3 + sectionLength - 4; // to determine where the table is, we have to figure out how\n      // long the program info descriptors are\n\n      programInfoLength = (payload[10] & 0x0f) << 8 | payload[11]; // advance the offset to the first entry in the mapping table\n\n      offset = 12 + programInfoLength;\n\n      while (offset < tableEnd) {\n        var streamType = payload[offset];\n        var pid = (payload[offset + 1] & 0x1F) << 8 | payload[offset + 2]; // only map a single elementary_pid for audio and video stream types\n        // TODO: should this be done for metadata too? for now maintain behavior of\n        //       multiple metadata streams\n\n        if (streamType === streamTypes.H264_STREAM_TYPE && self.programMapTable.video === null) {\n          self.programMapTable.video = pid;\n        } else if (streamType === streamTypes.ADTS_STREAM_TYPE && self.programMapTable.audio === null) {\n          self.programMapTable.audio = pid;\n        } else if (streamType === streamTypes.METADATA_STREAM_TYPE) {\n          // map pid to stream type for metadata streams\n          self.programMapTable['timed-metadata'][pid] = streamType;\n        } // move to the next table entry\n        // skip past the elementary stream descriptors, if present\n\n\n        offset += ((payload[offset + 3] & 0x0F) << 8 | payload[offset + 4]) + 5;\n      } // record the map on the packet as well\n\n\n      pmt.programMapTable = self.programMapTable;\n    };\n    /**\n     * Deliver a new MP2T packet to the next stream in the pipeline.\n     */\n\n\n    this.push = function (packet) {\n      var result = {},\n          offset = 4;\n      result.payloadUnitStartIndicator = !!(packet[1] & 0x40); // pid is a 13-bit field starting at the last bit of packet[1]\n\n      result.pid = packet[1] & 0x1f;\n      result.pid <<= 8;\n      result.pid |= packet[2]; // if an adaption field is present, its length is specified by the\n      // fifth byte of the TS packet header. The adaptation field is\n      // used to add stuffing to PES packets that don't fill a complete\n      // TS packet, and to specify some forms of timing and control data\n      // that we do not currently use.\n\n      if ((packet[3] & 0x30) >>> 4 > 0x01) {\n        offset += packet[offset] + 1;\n      } // parse the rest of the packet based on the type\n\n\n      if (result.pid === 0) {\n        result.type = 'pat';\n        parsePsi(packet.subarray(offset), result);\n        this.trigger('data', result);\n      } else if (result.pid === this.pmtPid) {\n        result.type = 'pmt';\n        parsePsi(packet.subarray(offset), result);\n        this.trigger('data', result); // if there are any packets waiting for a PMT to be found, process them now\n\n        while (this.packetsWaitingForPmt.length) {\n          this.processPes_.apply(this, this.packetsWaitingForPmt.shift());\n        }\n      } else if (this.programMapTable === undefined) {\n        // When we have not seen a PMT yet, defer further processing of\n        // PES packets until one has been parsed\n        this.packetsWaitingForPmt.push([packet, offset, result]);\n      } else {\n        this.processPes_(packet, offset, result);\n      }\n    };\n\n    this.processPes_ = function (packet, offset, result) {\n      // set the appropriate stream type\n      if (result.pid === this.programMapTable.video) {\n        result.streamType = streamTypes.H264_STREAM_TYPE;\n      } else if (result.pid === this.programMapTable.audio) {\n        result.streamType = streamTypes.ADTS_STREAM_TYPE;\n      } else {\n        // if not video or audio, it is timed-metadata or unknown\n        // if unknown, streamType will be undefined\n        result.streamType = this.programMapTable['timed-metadata'][result.pid];\n      }\n\n      result.type = 'pes';\n      result.data = packet.subarray(offset);\n      this.trigger('data', result);\n    };\n  };\n\n  _TransportParseStream.prototype = new stream();\n  _TransportParseStream.STREAM_TYPES = {\n    h264: 0x1b,\n    adts: 0x0f\n  };\n  /**\n   * Reconsistutes program elementary stream (PES) packets from parsed\n   * transport stream packets. That is, if you pipe an\n   * mp2t.TransportParseStream into a mp2t.ElementaryStream, the output\n   * events will be events which capture the bytes for individual PES\n   * packets plus relevant metadata that has been extracted from the\n   * container.\n   */\n\n  _ElementaryStream = function ElementaryStream() {\n    var self = this,\n        segmentHadPmt = false,\n        // PES packet fragments\n    video = {\n      data: [],\n      size: 0\n    },\n        audio = {\n      data: [],\n      size: 0\n    },\n        timedMetadata = {\n      data: [],\n      size: 0\n    },\n        programMapTable,\n        parsePes = function parsePes(payload, pes) {\n      var ptsDtsFlags;\n      var startPrefix = payload[0] << 16 | payload[1] << 8 | payload[2]; // default to an empty array\n\n      pes.data = new Uint8Array(); // In certain live streams, the start of a TS fragment has ts packets\n      // that are frame data that is continuing from the previous fragment. This\n      // is to check that the pes data is the start of a new pes payload\n\n      if (startPrefix !== 1) {\n        return;\n      } // get the packet length, this will be 0 for video\n\n\n      pes.packetLength = 6 + (payload[4] << 8 | payload[5]); // find out if this packets starts a new keyframe\n\n      pes.dataAlignmentIndicator = (payload[6] & 0x04) !== 0; // PES packets may be annotated with a PTS value, or a PTS value\n      // and a DTS value. Determine what combination of values is\n      // available to work with.\n\n      ptsDtsFlags = payload[7]; // PTS and DTS are normally stored as a 33-bit number.  Javascript\n      // performs all bitwise operations on 32-bit integers but javascript\n      // supports a much greater range (52-bits) of integer using standard\n      // mathematical operations.\n      // We construct a 31-bit value using bitwise operators over the 31\n      // most significant bits and then multiply by 4 (equal to a left-shift\n      // of 2) before we add the final 2 least significant bits of the\n      // timestamp (equal to an OR.)\n\n      if (ptsDtsFlags & 0xC0) {\n        // the PTS and DTS are not written out directly. For information\n        // on how they are encoded, see\n        // http://dvd.sourceforge.net/dvdinfo/pes-hdr.html\n        pes.pts = (payload[9] & 0x0E) << 27 | (payload[10] & 0xFF) << 20 | (payload[11] & 0xFE) << 12 | (payload[12] & 0xFF) << 5 | (payload[13] & 0xFE) >>> 3;\n        pes.pts *= 4; // Left shift by 2\n\n        pes.pts += (payload[13] & 0x06) >>> 1; // OR by the two LSBs\n\n        pes.dts = pes.pts;\n\n        if (ptsDtsFlags & 0x40) {\n          pes.dts = (payload[14] & 0x0E) << 27 | (payload[15] & 0xFF) << 20 | (payload[16] & 0xFE) << 12 | (payload[17] & 0xFF) << 5 | (payload[18] & 0xFE) >>> 3;\n          pes.dts *= 4; // Left shift by 2\n\n          pes.dts += (payload[18] & 0x06) >>> 1; // OR by the two LSBs\n        }\n      } // the data section starts immediately after the PES header.\n      // pes_header_data_length specifies the number of header bytes\n      // that follow the last byte of the field.\n\n\n      pes.data = payload.subarray(9 + payload[8]);\n    },\n\n    /**\n      * Pass completely parsed PES packets to the next stream in the pipeline\n     **/\n    flushStream = function flushStream(stream, type, forceFlush) {\n      var packetData = new Uint8Array(stream.size),\n          event = {\n        type: type\n      },\n          i = 0,\n          offset = 0,\n          packetFlushable = false,\n          fragment; // do nothing if there is not enough buffered data for a complete\n      // PES header\n\n      if (!stream.data.length || stream.size < 9) {\n        return;\n      }\n\n      event.trackId = stream.data[0].pid; // reassemble the packet\n\n      for (i = 0; i < stream.data.length; i++) {\n        fragment = stream.data[i];\n        packetData.set(fragment.data, offset);\n        offset += fragment.data.byteLength;\n      } // parse assembled packet's PES header\n\n\n      parsePes(packetData, event); // non-video PES packets MUST have a non-zero PES_packet_length\n      // check that there is enough stream data to fill the packet\n\n      packetFlushable = type === 'video' || event.packetLength <= stream.size; // flush pending packets if the conditions are right\n\n      if (forceFlush || packetFlushable) {\n        stream.size = 0;\n        stream.data.length = 0;\n      } // only emit packets that are complete. this is to avoid assembling\n      // incomplete PES packets due to poor segmentation\n\n\n      if (packetFlushable) {\n        self.trigger('data', event);\n      }\n    };\n\n    _ElementaryStream.prototype.init.call(this);\n    /**\n     * Identifies M2TS packet types and parses PES packets using metadata\n     * parsed from the PMT\n     **/\n\n\n    this.push = function (data) {\n      ({\n        pat: function pat() {// we have to wait for the PMT to arrive as well before we\n          // have any meaningful metadata\n        },\n        pes: function pes() {\n          var stream, streamType;\n\n          switch (data.streamType) {\n            case streamTypes.H264_STREAM_TYPE:\n              stream = video;\n              streamType = 'video';\n              break;\n\n            case streamTypes.ADTS_STREAM_TYPE:\n              stream = audio;\n              streamType = 'audio';\n              break;\n\n            case streamTypes.METADATA_STREAM_TYPE:\n              stream = timedMetadata;\n              streamType = 'timed-metadata';\n              break;\n\n            default:\n              // ignore unknown stream types\n              return;\n          } // if a new packet is starting, we can flush the completed\n          // packet\n\n\n          if (data.payloadUnitStartIndicator) {\n            flushStream(stream, streamType, true);\n          } // buffer this fragment until we are sure we've received the\n          // complete payload\n\n\n          stream.data.push(data);\n          stream.size += data.data.byteLength;\n        },\n        pmt: function pmt() {\n          var event = {\n            type: 'metadata',\n            tracks: []\n          };\n          programMapTable = data.programMapTable; // translate audio and video streams to tracks\n\n          if (programMapTable.video !== null) {\n            event.tracks.push({\n              timelineStartInfo: {\n                baseMediaDecodeTime: 0\n              },\n              id: +programMapTable.video,\n              codec: 'avc',\n              type: 'video'\n            });\n          }\n\n          if (programMapTable.audio !== null) {\n            event.tracks.push({\n              timelineStartInfo: {\n                baseMediaDecodeTime: 0\n              },\n              id: +programMapTable.audio,\n              codec: 'adts',\n              type: 'audio'\n            });\n          }\n\n          segmentHadPmt = true;\n          self.trigger('data', event);\n        }\n      })[data.type]();\n    };\n\n    this.reset = function () {\n      video.size = 0;\n      video.data.length = 0;\n      audio.size = 0;\n      audio.data.length = 0;\n      this.trigger('reset');\n    };\n    /**\n     * Flush any remaining input. Video PES packets may be of variable\n     * length. Normally, the start of a new video packet can trigger the\n     * finalization of the previous packet. That is not possible if no\n     * more video is forthcoming, however. In that case, some other\n     * mechanism (like the end of the file) has to be employed. When it is\n     * clear that no additional data is forthcoming, calling this method\n     * will flush the buffered packets.\n     */\n\n\n    this.flushStreams_ = function () {\n      // !!THIS ORDER IS IMPORTANT!!\n      // video first then audio\n      flushStream(video, 'video');\n      flushStream(audio, 'audio');\n      flushStream(timedMetadata, 'timed-metadata');\n    };\n\n    this.flush = function () {\n      // if on flush we haven't had a pmt emitted\n      // and we have a pmt to emit. emit the pmt\n      // so that we trigger a trackinfo downstream.\n      if (!segmentHadPmt && programMapTable) {\n        var pmt = {\n          type: 'metadata',\n          tracks: []\n        }; // translate audio and video streams to tracks\n\n        if (programMapTable.video !== null) {\n          pmt.tracks.push({\n            timelineStartInfo: {\n              baseMediaDecodeTime: 0\n            },\n            id: +programMapTable.video,\n            codec: 'avc',\n            type: 'video'\n          });\n        }\n\n        if (programMapTable.audio !== null) {\n          pmt.tracks.push({\n            timelineStartInfo: {\n              baseMediaDecodeTime: 0\n            },\n            id: +programMapTable.audio,\n            codec: 'adts',\n            type: 'audio'\n          });\n        }\n\n        self.trigger('data', pmt);\n      }\n\n      segmentHadPmt = false;\n      this.flushStreams_();\n      this.trigger('done');\n    };\n  };\n\n  _ElementaryStream.prototype = new stream();\n  var m2ts = {\n    PAT_PID: 0x0000,\n    MP2T_PACKET_LENGTH: MP2T_PACKET_LENGTH$1,\n    TransportPacketStream: _TransportPacketStream,\n    TransportParseStream: _TransportParseStream,\n    ElementaryStream: _ElementaryStream,\n    TimestampRolloverStream: TimestampRolloverStream,\n    CaptionStream: captionStream.CaptionStream,\n    Cea608Stream: captionStream.Cea608Stream,\n    Cea708Stream: captionStream.Cea708Stream,\n    MetadataStream: metadataStream\n  };\n\n  for (var type in streamTypes) {\n    if (streamTypes.hasOwnProperty(type)) {\n      m2ts[type] = streamTypes[type];\n    }\n  }\n\n  var m2ts_1 = m2ts;\n  var ONE_SECOND_IN_TS$2 = clock.ONE_SECOND_IN_TS;\n\n  var _AdtsStream;\n\n  var ADTS_SAMPLING_FREQUENCIES$1 = [96000, 88200, 64000, 48000, 44100, 32000, 24000, 22050, 16000, 12000, 11025, 8000, 7350];\n  /*\n   * Accepts a ElementaryStream and emits data events with parsed\n   * AAC Audio Frames of the individual packets. Input audio in ADTS\n   * format is unpacked and re-emitted as AAC frames.\n   *\n   * @see http://wiki.multimedia.cx/index.php?title=ADTS\n   * @see http://wiki.multimedia.cx/?title=Understanding_AAC\n   */\n\n  _AdtsStream = function AdtsStream(handlePartialSegments) {\n    var buffer,\n        frameNum = 0;\n\n    _AdtsStream.prototype.init.call(this);\n\n    this.skipWarn_ = function (start, end) {\n      this.trigger('log', {\n        level: 'warn',\n        message: \"adts skiping bytes \" + start + \" to \" + end + \" in frame \" + frameNum + \" outside syncword\"\n      });\n    };\n\n    this.push = function (packet) {\n      var i = 0,\n          frameLength,\n          protectionSkipBytes,\n          oldBuffer,\n          sampleCount,\n          adtsFrameDuration;\n\n      if (!handlePartialSegments) {\n        frameNum = 0;\n      }\n\n      if (packet.type !== 'audio') {\n        // ignore non-audio data\n        return;\n      } // Prepend any data in the buffer to the input data so that we can parse\n      // aac frames the cross a PES packet boundary\n\n\n      if (buffer && buffer.length) {\n        oldBuffer = buffer;\n        buffer = new Uint8Array(oldBuffer.byteLength + packet.data.byteLength);\n        buffer.set(oldBuffer);\n        buffer.set(packet.data, oldBuffer.byteLength);\n      } else {\n        buffer = packet.data;\n      } // unpack any ADTS frames which have been fully received\n      // for details on the ADTS header, see http://wiki.multimedia.cx/index.php?title=ADTS\n\n\n      var skip; // We use i + 7 here because we want to be able to parse the entire header.\n      // If we don't have enough bytes to do that, then we definitely won't have a full frame.\n\n      while (i + 7 < buffer.length) {\n        // Look for the start of an ADTS header..\n        if (buffer[i] !== 0xFF || (buffer[i + 1] & 0xF6) !== 0xF0) {\n          if (typeof skip !== 'number') {\n            skip = i;\n          } // If a valid header was not found,  jump one forward and attempt to\n          // find a valid ADTS header starting at the next byte\n\n\n          i++;\n          continue;\n        }\n\n        if (typeof skip === 'number') {\n          this.skipWarn_(skip, i);\n          skip = null;\n        } // The protection skip bit tells us if we have 2 bytes of CRC data at the\n        // end of the ADTS header\n\n\n        protectionSkipBytes = (~buffer[i + 1] & 0x01) * 2; // Frame length is a 13 bit integer starting 16 bits from the\n        // end of the sync sequence\n        // NOTE: frame length includes the size of the header\n\n        frameLength = (buffer[i + 3] & 0x03) << 11 | buffer[i + 4] << 3 | (buffer[i + 5] & 0xe0) >> 5;\n        sampleCount = ((buffer[i + 6] & 0x03) + 1) * 1024;\n        adtsFrameDuration = sampleCount * ONE_SECOND_IN_TS$2 / ADTS_SAMPLING_FREQUENCIES$1[(buffer[i + 2] & 0x3c) >>> 2]; // If we don't have enough data to actually finish this ADTS frame,\n        // then we have to wait for more data\n\n        if (buffer.byteLength - i < frameLength) {\n          break;\n        } // Otherwise, deliver the complete AAC frame\n\n\n        this.trigger('data', {\n          pts: packet.pts + frameNum * adtsFrameDuration,\n          dts: packet.dts + frameNum * adtsFrameDuration,\n          sampleCount: sampleCount,\n          audioobjecttype: (buffer[i + 2] >>> 6 & 0x03) + 1,\n          channelcount: (buffer[i + 2] & 1) << 2 | (buffer[i + 3] & 0xc0) >>> 6,\n          samplerate: ADTS_SAMPLING_FREQUENCIES$1[(buffer[i + 2] & 0x3c) >>> 2],\n          samplingfrequencyindex: (buffer[i + 2] & 0x3c) >>> 2,\n          // assume ISO/IEC 14496-12 AudioSampleEntry default of 16\n          samplesize: 16,\n          // data is the frame without it's header\n          data: buffer.subarray(i + 7 + protectionSkipBytes, i + frameLength)\n        });\n        frameNum++;\n        i += frameLength;\n      }\n\n      if (typeof skip === 'number') {\n        this.skipWarn_(skip, i);\n        skip = null;\n      } // remove processed bytes from the buffer.\n\n\n      buffer = buffer.subarray(i);\n    };\n\n    this.flush = function () {\n      frameNum = 0;\n      this.trigger('done');\n    };\n\n    this.reset = function () {\n      buffer = void 0;\n      this.trigger('reset');\n    };\n\n    this.endTimeline = function () {\n      buffer = void 0;\n      this.trigger('endedtimeline');\n    };\n  };\n\n  _AdtsStream.prototype = new stream();\n  var adts = _AdtsStream;\n  /**\n   * mux.js\n   *\n   * Copyright (c) Brightcove\n   * Licensed Apache-2.0 https://github.com/videojs/mux.js/blob/master/LICENSE\n   */\n\n  var ExpGolomb;\n  /**\n   * Parser for exponential Golomb codes, a variable-bitwidth number encoding\n   * scheme used by h264.\n   */\n\n  ExpGolomb = function ExpGolomb(workingData) {\n    var // the number of bytes left to examine in workingData\n    workingBytesAvailable = workingData.byteLength,\n        // the current word being examined\n    workingWord = 0,\n        // :uint\n    // the number of bits left to examine in the current word\n    workingBitsAvailable = 0; // :uint;\n    // ():uint\n\n    this.length = function () {\n      return 8 * workingBytesAvailable;\n    }; // ():uint\n\n\n    this.bitsAvailable = function () {\n      return 8 * workingBytesAvailable + workingBitsAvailable;\n    }; // ():void\n\n\n    this.loadWord = function () {\n      var position = workingData.byteLength - workingBytesAvailable,\n          workingBytes = new Uint8Array(4),\n          availableBytes = Math.min(4, workingBytesAvailable);\n\n      if (availableBytes === 0) {\n        throw new Error('no bytes available');\n      }\n\n      workingBytes.set(workingData.subarray(position, position + availableBytes));\n      workingWord = new DataView(workingBytes.buffer).getUint32(0); // track the amount of workingData that has been processed\n\n      workingBitsAvailable = availableBytes * 8;\n      workingBytesAvailable -= availableBytes;\n    }; // (count:int):void\n\n\n    this.skipBits = function (count) {\n      var skipBytes; // :int\n\n      if (workingBitsAvailable > count) {\n        workingWord <<= count;\n        workingBitsAvailable -= count;\n      } else {\n        count -= workingBitsAvailable;\n        skipBytes = Math.floor(count / 8);\n        count -= skipBytes * 8;\n        workingBytesAvailable -= skipBytes;\n        this.loadWord();\n        workingWord <<= count;\n        workingBitsAvailable -= count;\n      }\n    }; // (size:int):uint\n\n\n    this.readBits = function (size) {\n      var bits = Math.min(workingBitsAvailable, size),\n          // :uint\n      valu = workingWord >>> 32 - bits; // :uint\n      // if size > 31, handle error\n\n      workingBitsAvailable -= bits;\n\n      if (workingBitsAvailable > 0) {\n        workingWord <<= bits;\n      } else if (workingBytesAvailable > 0) {\n        this.loadWord();\n      }\n\n      bits = size - bits;\n\n      if (bits > 0) {\n        return valu << bits | this.readBits(bits);\n      }\n\n      return valu;\n    }; // ():uint\n\n\n    this.skipLeadingZeros = function () {\n      var leadingZeroCount; // :uint\n\n      for (leadingZeroCount = 0; leadingZeroCount < workingBitsAvailable; ++leadingZeroCount) {\n        if ((workingWord & 0x80000000 >>> leadingZeroCount) !== 0) {\n          // the first bit of working word is 1\n          workingWord <<= leadingZeroCount;\n          workingBitsAvailable -= leadingZeroCount;\n          return leadingZeroCount;\n        }\n      } // we exhausted workingWord and still have not found a 1\n\n\n      this.loadWord();\n      return leadingZeroCount + this.skipLeadingZeros();\n    }; // ():void\n\n\n    this.skipUnsignedExpGolomb = function () {\n      this.skipBits(1 + this.skipLeadingZeros());\n    }; // ():void\n\n\n    this.skipExpGolomb = function () {\n      this.skipBits(1 + this.skipLeadingZeros());\n    }; // ():uint\n\n\n    this.readUnsignedExpGolomb = function () {\n      var clz = this.skipLeadingZeros(); // :uint\n\n      return this.readBits(clz + 1) - 1;\n    }; // ():int\n\n\n    this.readExpGolomb = function () {\n      var valu = this.readUnsignedExpGolomb(); // :int\n\n      if (0x01 & valu) {\n        // the number is odd if the low order bit is set\n        return 1 + valu >>> 1; // add 1 to make it even, and divide by 2\n      }\n\n      return -1 * (valu >>> 1); // divide by two then make it negative\n    }; // Some convenience functions\n    // :Boolean\n\n\n    this.readBoolean = function () {\n      return this.readBits(1) === 1;\n    }; // ():int\n\n\n    this.readUnsignedByte = function () {\n      return this.readBits(8);\n    };\n\n    this.loadWord();\n  };\n\n  var expGolomb = ExpGolomb;\n\n  var _H264Stream, _NalByteStream;\n\n  var PROFILES_WITH_OPTIONAL_SPS_DATA;\n  /**\n   * Accepts a NAL unit byte stream and unpacks the embedded NAL units.\n   */\n\n  _NalByteStream = function NalByteStream() {\n    var syncPoint = 0,\n        i,\n        buffer;\n\n    _NalByteStream.prototype.init.call(this);\n    /*\n     * Scans a byte stream and triggers a data event with the NAL units found.\n     * @param {Object} data Event received from H264Stream\n     * @param {Uint8Array} data.data The h264 byte stream to be scanned\n     *\n     * @see H264Stream.push\n     */\n\n\n    this.push = function (data) {\n      var swapBuffer;\n\n      if (!buffer) {\n        buffer = data.data;\n      } else {\n        swapBuffer = new Uint8Array(buffer.byteLength + data.data.byteLength);\n        swapBuffer.set(buffer);\n        swapBuffer.set(data.data, buffer.byteLength);\n        buffer = swapBuffer;\n      }\n\n      var len = buffer.byteLength; // Rec. ITU-T H.264, Annex B\n      // scan for NAL unit boundaries\n      // a match looks like this:\n      // 0 0 1 .. NAL .. 0 0 1\n      // ^ sync point        ^ i\n      // or this:\n      // 0 0 1 .. NAL .. 0 0 0\n      // ^ sync point        ^ i\n      // advance the sync point to a NAL start, if necessary\n\n      for (; syncPoint < len - 3; syncPoint++) {\n        if (buffer[syncPoint + 2] === 1) {\n          // the sync point is properly aligned\n          i = syncPoint + 5;\n          break;\n        }\n      }\n\n      while (i < len) {\n        // look at the current byte to determine if we've hit the end of\n        // a NAL unit boundary\n        switch (buffer[i]) {\n          case 0:\n            // skip past non-sync sequences\n            if (buffer[i - 1] !== 0) {\n              i += 2;\n              break;\n            } else if (buffer[i - 2] !== 0) {\n              i++;\n              break;\n            } // deliver the NAL unit if it isn't empty\n\n\n            if (syncPoint + 3 !== i - 2) {\n              this.trigger('data', buffer.subarray(syncPoint + 3, i - 2));\n            } // drop trailing zeroes\n\n\n            do {\n              i++;\n            } while (buffer[i] !== 1 && i < len);\n\n            syncPoint = i - 2;\n            i += 3;\n            break;\n\n          case 1:\n            // skip past non-sync sequences\n            if (buffer[i - 1] !== 0 || buffer[i - 2] !== 0) {\n              i += 3;\n              break;\n            } // deliver the NAL unit\n\n\n            this.trigger('data', buffer.subarray(syncPoint + 3, i - 2));\n            syncPoint = i - 2;\n            i += 3;\n            break;\n\n          default:\n            // the current byte isn't a one or zero, so it cannot be part\n            // of a sync sequence\n            i += 3;\n            break;\n        }\n      } // filter out the NAL units that were delivered\n\n\n      buffer = buffer.subarray(syncPoint);\n      i -= syncPoint;\n      syncPoint = 0;\n    };\n\n    this.reset = function () {\n      buffer = null;\n      syncPoint = 0;\n      this.trigger('reset');\n    };\n\n    this.flush = function () {\n      // deliver the last buffered NAL unit\n      if (buffer && buffer.byteLength > 3) {\n        this.trigger('data', buffer.subarray(syncPoint + 3));\n      } // reset the stream state\n\n\n      buffer = null;\n      syncPoint = 0;\n      this.trigger('done');\n    };\n\n    this.endTimeline = function () {\n      this.flush();\n      this.trigger('endedtimeline');\n    };\n  };\n\n  _NalByteStream.prototype = new stream(); // values of profile_idc that indicate additional fields are included in the SPS\n  // see Recommendation ITU-T H.264 (4/2013),\n  // 7.3.2.1.1 Sequence parameter set data syntax\n\n  PROFILES_WITH_OPTIONAL_SPS_DATA = {\n    100: true,\n    110: true,\n    122: true,\n    244: true,\n    44: true,\n    83: true,\n    86: true,\n    118: true,\n    128: true,\n    // TODO: the three profiles below don't\n    // appear to have sps data in the specificiation anymore?\n    138: true,\n    139: true,\n    134: true\n  };\n  /**\n   * Accepts input from a ElementaryStream and produces H.264 NAL unit data\n   * events.\n   */\n\n  _H264Stream = function H264Stream() {\n    var nalByteStream = new _NalByteStream(),\n        self,\n        trackId,\n        currentPts,\n        currentDts,\n        discardEmulationPreventionBytes,\n        readSequenceParameterSet,\n        skipScalingList;\n\n    _H264Stream.prototype.init.call(this);\n\n    self = this;\n    /*\n     * Pushes a packet from a stream onto the NalByteStream\n     *\n     * @param {Object} packet - A packet received from a stream\n     * @param {Uint8Array} packet.data - The raw bytes of the packet\n     * @param {Number} packet.dts - Decode timestamp of the packet\n     * @param {Number} packet.pts - Presentation timestamp of the packet\n     * @param {Number} packet.trackId - The id of the h264 track this packet came from\n     * @param {('video'|'audio')} packet.type - The type of packet\n     *\n     */\n\n    this.push = function (packet) {\n      if (packet.type !== 'video') {\n        return;\n      }\n\n      trackId = packet.trackId;\n      currentPts = packet.pts;\n      currentDts = packet.dts;\n      nalByteStream.push(packet);\n    };\n    /*\n     * Identify NAL unit types and pass on the NALU, trackId, presentation and decode timestamps\n     * for the NALUs to the next stream component.\n     * Also, preprocess caption and sequence parameter NALUs.\n     *\n     * @param {Uint8Array} data - A NAL unit identified by `NalByteStream.push`\n     * @see NalByteStream.push\n     */\n\n\n    nalByteStream.on('data', function (data) {\n      var event = {\n        trackId: trackId,\n        pts: currentPts,\n        dts: currentDts,\n        data: data,\n        nalUnitTypeCode: data[0] & 0x1f\n      };\n\n      switch (event.nalUnitTypeCode) {\n        case 0x05:\n          event.nalUnitType = 'slice_layer_without_partitioning_rbsp_idr';\n          break;\n\n        case 0x06:\n          event.nalUnitType = 'sei_rbsp';\n          event.escapedRBSP = discardEmulationPreventionBytes(data.subarray(1));\n          break;\n\n        case 0x07:\n          event.nalUnitType = 'seq_parameter_set_rbsp';\n          event.escapedRBSP = discardEmulationPreventionBytes(data.subarray(1));\n          event.config = readSequenceParameterSet(event.escapedRBSP);\n          break;\n\n        case 0x08:\n          event.nalUnitType = 'pic_parameter_set_rbsp';\n          break;\n\n        case 0x09:\n          event.nalUnitType = 'access_unit_delimiter_rbsp';\n          break;\n      } // This triggers data on the H264Stream\n\n\n      self.trigger('data', event);\n    });\n    nalByteStream.on('done', function () {\n      self.trigger('done');\n    });\n    nalByteStream.on('partialdone', function () {\n      self.trigger('partialdone');\n    });\n    nalByteStream.on('reset', function () {\n      self.trigger('reset');\n    });\n    nalByteStream.on('endedtimeline', function () {\n      self.trigger('endedtimeline');\n    });\n\n    this.flush = function () {\n      nalByteStream.flush();\n    };\n\n    this.partialFlush = function () {\n      nalByteStream.partialFlush();\n    };\n\n    this.reset = function () {\n      nalByteStream.reset();\n    };\n\n    this.endTimeline = function () {\n      nalByteStream.endTimeline();\n    };\n    /**\n     * Advance the ExpGolomb decoder past a scaling list. The scaling\n     * list is optionally transmitted as part of a sequence parameter\n     * set and is not relevant to transmuxing.\n     * @param count {number} the number of entries in this scaling list\n     * @param expGolombDecoder {object} an ExpGolomb pointed to the\n     * start of a scaling list\n     * @see Recommendation ITU-T H.264, Section 7.3.2.1.1.1\n     */\n\n\n    skipScalingList = function skipScalingList(count, expGolombDecoder) {\n      var lastScale = 8,\n          nextScale = 8,\n          j,\n          deltaScale;\n\n      for (j = 0; j < count; j++) {\n        if (nextScale !== 0) {\n          deltaScale = expGolombDecoder.readExpGolomb();\n          nextScale = (lastScale + deltaScale + 256) % 256;\n        }\n\n        lastScale = nextScale === 0 ? lastScale : nextScale;\n      }\n    };\n    /**\n     * Expunge any \"Emulation Prevention\" bytes from a \"Raw Byte\n     * Sequence Payload\"\n     * @param data {Uint8Array} the bytes of a RBSP from a NAL\n     * unit\n     * @return {Uint8Array} the RBSP without any Emulation\n     * Prevention Bytes\n     */\n\n\n    discardEmulationPreventionBytes = function discardEmulationPreventionBytes(data) {\n      var length = data.byteLength,\n          emulationPreventionBytesPositions = [],\n          i = 1,\n          newLength,\n          newData; // Find all `Emulation Prevention Bytes`\n\n      while (i < length - 2) {\n        if (data[i] === 0 && data[i + 1] === 0 && data[i + 2] === 0x03) {\n          emulationPreventionBytesPositions.push(i + 2);\n          i += 2;\n        } else {\n          i++;\n        }\n      } // If no Emulation Prevention Bytes were found just return the original\n      // array\n\n\n      if (emulationPreventionBytesPositions.length === 0) {\n        return data;\n      } // Create a new array to hold the NAL unit data\n\n\n      newLength = length - emulationPreventionBytesPositions.length;\n      newData = new Uint8Array(newLength);\n      var sourceIndex = 0;\n\n      for (i = 0; i < newLength; sourceIndex++, i++) {\n        if (sourceIndex === emulationPreventionBytesPositions[0]) {\n          // Skip this byte\n          sourceIndex++; // Remove this position index\n\n          emulationPreventionBytesPositions.shift();\n        }\n\n        newData[i] = data[sourceIndex];\n      }\n\n      return newData;\n    };\n    /**\n     * Read a sequence parameter set and return some interesting video\n     * properties. A sequence parameter set is the H264 metadata that\n     * describes the properties of upcoming video frames.\n     * @param data {Uint8Array} the bytes of a sequence parameter set\n     * @return {object} an object with configuration parsed from the\n     * sequence parameter set, including the dimensions of the\n     * associated video frames.\n     */\n\n\n    readSequenceParameterSet = function readSequenceParameterSet(data) {\n      var frameCropLeftOffset = 0,\n          frameCropRightOffset = 0,\n          frameCropTopOffset = 0,\n          frameCropBottomOffset = 0,\n          expGolombDecoder,\n          profileIdc,\n          levelIdc,\n          profileCompatibility,\n          chromaFormatIdc,\n          picOrderCntType,\n          numRefFramesInPicOrderCntCycle,\n          picWidthInMbsMinus1,\n          picHeightInMapUnitsMinus1,\n          frameMbsOnlyFlag,\n          scalingListCount,\n          sarRatio = [1, 1],\n          aspectRatioIdc,\n          i;\n      expGolombDecoder = new expGolomb(data);\n      profileIdc = expGolombDecoder.readUnsignedByte(); // profile_idc\n\n      profileCompatibility = expGolombDecoder.readUnsignedByte(); // constraint_set[0-5]_flag\n\n      levelIdc = expGolombDecoder.readUnsignedByte(); // level_idc u(8)\n\n      expGolombDecoder.skipUnsignedExpGolomb(); // seq_parameter_set_id\n      // some profiles have more optional data we don't need\n\n      if (PROFILES_WITH_OPTIONAL_SPS_DATA[profileIdc]) {\n        chromaFormatIdc = expGolombDecoder.readUnsignedExpGolomb();\n\n        if (chromaFormatIdc === 3) {\n          expGolombDecoder.skipBits(1); // separate_colour_plane_flag\n        }\n\n        expGolombDecoder.skipUnsignedExpGolomb(); // bit_depth_luma_minus8\n\n        expGolombDecoder.skipUnsignedExpGolomb(); // bit_depth_chroma_minus8\n\n        expGolombDecoder.skipBits(1); // qpprime_y_zero_transform_bypass_flag\n\n        if (expGolombDecoder.readBoolean()) {\n          // seq_scaling_matrix_present_flag\n          scalingListCount = chromaFormatIdc !== 3 ? 8 : 12;\n\n          for (i = 0; i < scalingListCount; i++) {\n            if (expGolombDecoder.readBoolean()) {\n              // seq_scaling_list_present_flag[ i ]\n              if (i < 6) {\n                skipScalingList(16, expGolombDecoder);\n              } else {\n                skipScalingList(64, expGolombDecoder);\n              }\n            }\n          }\n        }\n      }\n\n      expGolombDecoder.skipUnsignedExpGolomb(); // log2_max_frame_num_minus4\n\n      picOrderCntType = expGolombDecoder.readUnsignedExpGolomb();\n\n      if (picOrderCntType === 0) {\n        expGolombDecoder.readUnsignedExpGolomb(); // log2_max_pic_order_cnt_lsb_minus4\n      } else if (picOrderCntType === 1) {\n        expGolombDecoder.skipBits(1); // delta_pic_order_always_zero_flag\n\n        expGolombDecoder.skipExpGolomb(); // offset_for_non_ref_pic\n\n        expGolombDecoder.skipExpGolomb(); // offset_for_top_to_bottom_field\n\n        numRefFramesInPicOrderCntCycle = expGolombDecoder.readUnsignedExpGolomb();\n\n        for (i = 0; i < numRefFramesInPicOrderCntCycle; i++) {\n          expGolombDecoder.skipExpGolomb(); // offset_for_ref_frame[ i ]\n        }\n      }\n\n      expGolombDecoder.skipUnsignedExpGolomb(); // max_num_ref_frames\n\n      expGolombDecoder.skipBits(1); // gaps_in_frame_num_value_allowed_flag\n\n      picWidthInMbsMinus1 = expGolombDecoder.readUnsignedExpGolomb();\n      picHeightInMapUnitsMinus1 = expGolombDecoder.readUnsignedExpGolomb();\n      frameMbsOnlyFlag = expGolombDecoder.readBits(1);\n\n      if (frameMbsOnlyFlag === 0) {\n        expGolombDecoder.skipBits(1); // mb_adaptive_frame_field_flag\n      }\n\n      expGolombDecoder.skipBits(1); // direct_8x8_inference_flag\n\n      if (expGolombDecoder.readBoolean()) {\n        // frame_cropping_flag\n        frameCropLeftOffset = expGolombDecoder.readUnsignedExpGolomb();\n        frameCropRightOffset = expGolombDecoder.readUnsignedExpGolomb();\n        frameCropTopOffset = expGolombDecoder.readUnsignedExpGolomb();\n        frameCropBottomOffset = expGolombDecoder.readUnsignedExpGolomb();\n      }\n\n      if (expGolombDecoder.readBoolean()) {\n        // vui_parameters_present_flag\n        if (expGolombDecoder.readBoolean()) {\n          // aspect_ratio_info_present_flag\n          aspectRatioIdc = expGolombDecoder.readUnsignedByte();\n\n          switch (aspectRatioIdc) {\n            case 1:\n              sarRatio = [1, 1];\n              break;\n\n            case 2:\n              sarRatio = [12, 11];\n              break;\n\n            case 3:\n              sarRatio = [10, 11];\n              break;\n\n            case 4:\n              sarRatio = [16, 11];\n              break;\n\n            case 5:\n              sarRatio = [40, 33];\n              break;\n\n            case 6:\n              sarRatio = [24, 11];\n              break;\n\n            case 7:\n              sarRatio = [20, 11];\n              break;\n\n            case 8:\n              sarRatio = [32, 11];\n              break;\n\n            case 9:\n              sarRatio = [80, 33];\n              break;\n\n            case 10:\n              sarRatio = [18, 11];\n              break;\n\n            case 11:\n              sarRatio = [15, 11];\n              break;\n\n            case 12:\n              sarRatio = [64, 33];\n              break;\n\n            case 13:\n              sarRatio = [160, 99];\n              break;\n\n            case 14:\n              sarRatio = [4, 3];\n              break;\n\n            case 15:\n              sarRatio = [3, 2];\n              break;\n\n            case 16:\n              sarRatio = [2, 1];\n              break;\n\n            case 255:\n              {\n                sarRatio = [expGolombDecoder.readUnsignedByte() << 8 | expGolombDecoder.readUnsignedByte(), expGolombDecoder.readUnsignedByte() << 8 | expGolombDecoder.readUnsignedByte()];\n                break;\n              }\n          }\n\n          if (sarRatio) {\n            sarRatio[0] / sarRatio[1];\n          }\n        }\n      }\n\n      return {\n        profileIdc: profileIdc,\n        levelIdc: levelIdc,\n        profileCompatibility: profileCompatibility,\n        width: (picWidthInMbsMinus1 + 1) * 16 - frameCropLeftOffset * 2 - frameCropRightOffset * 2,\n        height: (2 - frameMbsOnlyFlag) * (picHeightInMapUnitsMinus1 + 1) * 16 - frameCropTopOffset * 2 - frameCropBottomOffset * 2,\n        // sar is sample aspect ratio\n        sarRatio: sarRatio\n      };\n    };\n  };\n\n  _H264Stream.prototype = new stream();\n  var h264 = {\n    H264Stream: _H264Stream,\n    NalByteStream: _NalByteStream\n  };\n  /**\n   * mux.js\n   *\n   * Copyright (c) Brightcove\n   * Licensed Apache-2.0 https://github.com/videojs/mux.js/blob/master/LICENSE\n   *\n   * Utilities to detect basic properties and metadata about Aac data.\n   */\n\n  var ADTS_SAMPLING_FREQUENCIES = [96000, 88200, 64000, 48000, 44100, 32000, 24000, 22050, 16000, 12000, 11025, 8000, 7350];\n\n  var parseId3TagSize = function parseId3TagSize(header, byteIndex) {\n    var returnSize = header[byteIndex + 6] << 21 | header[byteIndex + 7] << 14 | header[byteIndex + 8] << 7 | header[byteIndex + 9],\n        flags = header[byteIndex + 5],\n        footerPresent = (flags & 16) >> 4; // if we get a negative returnSize clamp it to 0\n\n    returnSize = returnSize >= 0 ? returnSize : 0;\n\n    if (footerPresent) {\n      return returnSize + 20;\n    }\n\n    return returnSize + 10;\n  };\n\n  var getId3Offset = function getId3Offset(data, offset) {\n    if (data.length - offset < 10 || data[offset] !== 'I'.charCodeAt(0) || data[offset + 1] !== 'D'.charCodeAt(0) || data[offset + 2] !== '3'.charCodeAt(0)) {\n      return offset;\n    }\n\n    offset += parseId3TagSize(data, offset);\n    return getId3Offset(data, offset);\n  }; // TODO: use vhs-utils\n\n\n  var isLikelyAacData$1 = function isLikelyAacData(data) {\n    var offset = getId3Offset(data, 0);\n    return data.length >= offset + 2 && (data[offset] & 0xFF) === 0xFF && (data[offset + 1] & 0xF0) === 0xF0 && // verify that the 2 layer bits are 0, aka this\n    // is not mp3 data but aac data.\n    (data[offset + 1] & 0x16) === 0x10;\n  };\n\n  var parseSyncSafeInteger = function parseSyncSafeInteger(data) {\n    return data[0] << 21 | data[1] << 14 | data[2] << 7 | data[3];\n  }; // return a percent-encoded representation of the specified byte range\n  // @see http://en.wikipedia.org/wiki/Percent-encoding\n\n\n  var percentEncode = function percentEncode(bytes, start, end) {\n    var i,\n        result = '';\n\n    for (i = start; i < end; i++) {\n      result += '%' + ('00' + bytes[i].toString(16)).slice(-2);\n    }\n\n    return result;\n  }; // return the string representation of the specified byte range,\n  // interpreted as ISO-8859-1.\n\n\n  var parseIso88591 = function parseIso88591(bytes, start, end) {\n    return unescape(percentEncode(bytes, start, end)); // jshint ignore:line\n  };\n\n  var parseAdtsSize = function parseAdtsSize(header, byteIndex) {\n    var lowThree = (header[byteIndex + 5] & 0xE0) >> 5,\n        middle = header[byteIndex + 4] << 3,\n        highTwo = header[byteIndex + 3] & 0x3 << 11;\n    return highTwo | middle | lowThree;\n  };\n\n  var parseType$2 = function parseType(header, byteIndex) {\n    if (header[byteIndex] === 'I'.charCodeAt(0) && header[byteIndex + 1] === 'D'.charCodeAt(0) && header[byteIndex + 2] === '3'.charCodeAt(0)) {\n      return 'timed-metadata';\n    } else if (header[byteIndex] & 0xff === 0xff && (header[byteIndex + 1] & 0xf0) === 0xf0) {\n      return 'audio';\n    }\n\n    return null;\n  };\n\n  var parseSampleRate = function parseSampleRate(packet) {\n    var i = 0;\n\n    while (i + 5 < packet.length) {\n      if (packet[i] !== 0xFF || (packet[i + 1] & 0xF6) !== 0xF0) {\n        // If a valid header was not found,  jump one forward and attempt to\n        // find a valid ADTS header starting at the next byte\n        i++;\n        continue;\n      }\n\n      return ADTS_SAMPLING_FREQUENCIES[(packet[i + 2] & 0x3c) >>> 2];\n    }\n\n    return null;\n  };\n\n  var parseAacTimestamp = function parseAacTimestamp(packet) {\n    var frameStart, frameSize, frame, frameHeader; // find the start of the first frame and the end of the tag\n\n    frameStart = 10;\n\n    if (packet[5] & 0x40) {\n      // advance the frame start past the extended header\n      frameStart += 4; // header size field\n\n      frameStart += parseSyncSafeInteger(packet.subarray(10, 14));\n    } // parse one or more ID3 frames\n    // http://id3.org/id3v2.3.0#ID3v2_frame_overview\n\n\n    do {\n      // determine the number of bytes in this frame\n      frameSize = parseSyncSafeInteger(packet.subarray(frameStart + 4, frameStart + 8));\n\n      if (frameSize < 1) {\n        return null;\n      }\n\n      frameHeader = String.fromCharCode(packet[frameStart], packet[frameStart + 1], packet[frameStart + 2], packet[frameStart + 3]);\n\n      if (frameHeader === 'PRIV') {\n        frame = packet.subarray(frameStart + 10, frameStart + frameSize + 10);\n\n        for (var i = 0; i < frame.byteLength; i++) {\n          if (frame[i] === 0) {\n            var owner = parseIso88591(frame, 0, i);\n\n            if (owner === 'com.apple.streaming.transportStreamTimestamp') {\n              var d = frame.subarray(i + 1);\n              var size = (d[3] & 0x01) << 30 | d[4] << 22 | d[5] << 14 | d[6] << 6 | d[7] >>> 2;\n              size *= 4;\n              size += d[7] & 0x03;\n              return size;\n            }\n\n            break;\n          }\n        }\n      }\n\n      frameStart += 10; // advance past the frame header\n\n      frameStart += frameSize; // advance past the frame body\n    } while (frameStart < packet.byteLength);\n\n    return null;\n  };\n\n  var utils = {\n    isLikelyAacData: isLikelyAacData$1,\n    parseId3TagSize: parseId3TagSize,\n    parseAdtsSize: parseAdtsSize,\n    parseType: parseType$2,\n    parseSampleRate: parseSampleRate,\n    parseAacTimestamp: parseAacTimestamp\n  };\n\n  var _AacStream;\n  /**\n   * Splits an incoming stream of binary data into ADTS and ID3 Frames.\n   */\n\n\n  _AacStream = function AacStream() {\n    var everything = new Uint8Array(),\n        timeStamp = 0;\n\n    _AacStream.prototype.init.call(this);\n\n    this.setTimestamp = function (timestamp) {\n      timeStamp = timestamp;\n    };\n\n    this.push = function (bytes) {\n      var frameSize = 0,\n          byteIndex = 0,\n          bytesLeft,\n          chunk,\n          packet,\n          tempLength; // If there are bytes remaining from the last segment, prepend them to the\n      // bytes that were pushed in\n\n      if (everything.length) {\n        tempLength = everything.length;\n        everything = new Uint8Array(bytes.byteLength + tempLength);\n        everything.set(everything.subarray(0, tempLength));\n        everything.set(bytes, tempLength);\n      } else {\n        everything = bytes;\n      }\n\n      while (everything.length - byteIndex >= 3) {\n        if (everything[byteIndex] === 'I'.charCodeAt(0) && everything[byteIndex + 1] === 'D'.charCodeAt(0) && everything[byteIndex + 2] === '3'.charCodeAt(0)) {\n          // Exit early because we don't have enough to parse\n          // the ID3 tag header\n          if (everything.length - byteIndex < 10) {\n            break;\n          } // check framesize\n\n\n          frameSize = utils.parseId3TagSize(everything, byteIndex); // Exit early if we don't have enough in the buffer\n          // to emit a full packet\n          // Add to byteIndex to support multiple ID3 tags in sequence\n\n          if (byteIndex + frameSize > everything.length) {\n            break;\n          }\n\n          chunk = {\n            type: 'timed-metadata',\n            data: everything.subarray(byteIndex, byteIndex + frameSize)\n          };\n          this.trigger('data', chunk);\n          byteIndex += frameSize;\n          continue;\n        } else if ((everything[byteIndex] & 0xff) === 0xff && (everything[byteIndex + 1] & 0xf0) === 0xf0) {\n          // Exit early because we don't have enough to parse\n          // the ADTS frame header\n          if (everything.length - byteIndex < 7) {\n            break;\n          }\n\n          frameSize = utils.parseAdtsSize(everything, byteIndex); // Exit early if we don't have enough in the buffer\n          // to emit a full packet\n\n          if (byteIndex + frameSize > everything.length) {\n            break;\n          }\n\n          packet = {\n            type: 'audio',\n            data: everything.subarray(byteIndex, byteIndex + frameSize),\n            pts: timeStamp,\n            dts: timeStamp\n          };\n          this.trigger('data', packet);\n          byteIndex += frameSize;\n          continue;\n        }\n\n        byteIndex++;\n      }\n\n      bytesLeft = everything.length - byteIndex;\n\n      if (bytesLeft > 0) {\n        everything = everything.subarray(byteIndex);\n      } else {\n        everything = new Uint8Array();\n      }\n    };\n\n    this.reset = function () {\n      everything = new Uint8Array();\n      this.trigger('reset');\n    };\n\n    this.endTimeline = function () {\n      everything = new Uint8Array();\n      this.trigger('endedtimeline');\n    };\n  };\n\n  _AacStream.prototype = new stream();\n  var aac = _AacStream; // constants\n\n  var AUDIO_PROPERTIES = ['audioobjecttype', 'channelcount', 'samplerate', 'samplingfrequencyindex', 'samplesize'];\n  var audioProperties = AUDIO_PROPERTIES;\n  var VIDEO_PROPERTIES = ['width', 'height', 'profileIdc', 'levelIdc', 'profileCompatibility', 'sarRatio'];\n  var videoProperties = VIDEO_PROPERTIES;\n  var H264Stream = h264.H264Stream;\n  var isLikelyAacData = utils.isLikelyAacData;\n  var ONE_SECOND_IN_TS$1 = clock.ONE_SECOND_IN_TS; // object types\n\n  var _VideoSegmentStream, _AudioSegmentStream, _Transmuxer, _CoalesceStream;\n  /**\n   * Compare two arrays (even typed) for same-ness\n   */\n\n\n  var arrayEquals = function arrayEquals(a, b) {\n    var i;\n\n    if (a.length !== b.length) {\n      return false;\n    } // compare the value of each element in the array\n\n\n    for (i = 0; i < a.length; i++) {\n      if (a[i] !== b[i]) {\n        return false;\n      }\n    }\n\n    return true;\n  };\n\n  var generateSegmentTimingInfo = function generateSegmentTimingInfo(baseMediaDecodeTime, startDts, startPts, endDts, endPts, prependedContentDuration) {\n    var ptsOffsetFromDts = startPts - startDts,\n        decodeDuration = endDts - startDts,\n        presentationDuration = endPts - startPts; // The PTS and DTS values are based on the actual stream times from the segment,\n    // however, the player time values will reflect a start from the baseMediaDecodeTime.\n    // In order to provide relevant values for the player times, base timing info on the\n    // baseMediaDecodeTime and the DTS and PTS durations of the segment.\n\n    return {\n      start: {\n        dts: baseMediaDecodeTime,\n        pts: baseMediaDecodeTime + ptsOffsetFromDts\n      },\n      end: {\n        dts: baseMediaDecodeTime + decodeDuration,\n        pts: baseMediaDecodeTime + presentationDuration\n      },\n      prependedContentDuration: prependedContentDuration,\n      baseMediaDecodeTime: baseMediaDecodeTime\n    };\n  };\n  /**\n   * Constructs a single-track, ISO BMFF media segment from AAC data\n   * events. The output of this stream can be fed to a SourceBuffer\n   * configured with a suitable initialization segment.\n   * @param track {object} track metadata configuration\n   * @param options {object} transmuxer options object\n   * @param options.keepOriginalTimestamps {boolean} If true, keep the timestamps\n   *        in the source; false to adjust the first segment to start at 0.\n   */\n\n\n  _AudioSegmentStream = function AudioSegmentStream(track, options) {\n    var adtsFrames = [],\n        sequenceNumber,\n        earliestAllowedDts = 0,\n        audioAppendStartTs = 0,\n        videoBaseMediaDecodeTime = Infinity;\n    options = options || {};\n    sequenceNumber = options.firstSequenceNumber || 0;\n\n    _AudioSegmentStream.prototype.init.call(this);\n\n    this.push = function (data) {\n      trackDecodeInfo.collectDtsInfo(track, data);\n\n      if (track) {\n        audioProperties.forEach(function (prop) {\n          track[prop] = data[prop];\n        });\n      } // buffer audio data until end() is called\n\n\n      adtsFrames.push(data);\n    };\n\n    this.setEarliestDts = function (earliestDts) {\n      earliestAllowedDts = earliestDts;\n    };\n\n    this.setVideoBaseMediaDecodeTime = function (baseMediaDecodeTime) {\n      videoBaseMediaDecodeTime = baseMediaDecodeTime;\n    };\n\n    this.setAudioAppendStart = function (timestamp) {\n      audioAppendStartTs = timestamp;\n    };\n\n    this.flush = function () {\n      var frames, moof, mdat, boxes, frameDuration, segmentDuration, videoClockCyclesOfSilencePrefixed; // return early if no audio data has been observed\n\n      if (adtsFrames.length === 0) {\n        this.trigger('done', 'AudioSegmentStream');\n        return;\n      }\n\n      frames = audioFrameUtils.trimAdtsFramesByEarliestDts(adtsFrames, track, earliestAllowedDts);\n      track.baseMediaDecodeTime = trackDecodeInfo.calculateTrackBaseMediaDecodeTime(track, options.keepOriginalTimestamps); // amount of audio filled but the value is in video clock rather than audio clock\n\n      videoClockCyclesOfSilencePrefixed = audioFrameUtils.prefixWithSilence(track, frames, audioAppendStartTs, videoBaseMediaDecodeTime); // we have to build the index from byte locations to\n      // samples (that is, adts frames) in the audio data\n\n      track.samples = audioFrameUtils.generateSampleTable(frames); // concatenate the audio data to constuct the mdat\n\n      mdat = mp4Generator.mdat(audioFrameUtils.concatenateFrameData(frames));\n      adtsFrames = [];\n      moof = mp4Generator.moof(sequenceNumber, [track]);\n      boxes = new Uint8Array(moof.byteLength + mdat.byteLength); // bump the sequence number for next time\n\n      sequenceNumber++;\n      boxes.set(moof);\n      boxes.set(mdat, moof.byteLength);\n      trackDecodeInfo.clearDtsInfo(track);\n      frameDuration = Math.ceil(ONE_SECOND_IN_TS$1 * 1024 / track.samplerate); // TODO this check was added to maintain backwards compatibility (particularly with\n      // tests) on adding the timingInfo event. However, it seems unlikely that there's a\n      // valid use-case where an init segment/data should be triggered without associated\n      // frames. Leaving for now, but should be looked into.\n\n      if (frames.length) {\n        segmentDuration = frames.length * frameDuration;\n        this.trigger('segmentTimingInfo', generateSegmentTimingInfo( // The audio track's baseMediaDecodeTime is in audio clock cycles, but the\n        // frame info is in video clock cycles. Convert to match expectation of\n        // listeners (that all timestamps will be based on video clock cycles).\n        clock.audioTsToVideoTs(track.baseMediaDecodeTime, track.samplerate), // frame times are already in video clock, as is segment duration\n        frames[0].dts, frames[0].pts, frames[0].dts + segmentDuration, frames[0].pts + segmentDuration, videoClockCyclesOfSilencePrefixed || 0));\n        this.trigger('timingInfo', {\n          start: frames[0].pts,\n          end: frames[0].pts + segmentDuration\n        });\n      }\n\n      this.trigger('data', {\n        track: track,\n        boxes: boxes\n      });\n      this.trigger('done', 'AudioSegmentStream');\n    };\n\n    this.reset = function () {\n      trackDecodeInfo.clearDtsInfo(track);\n      adtsFrames = [];\n      this.trigger('reset');\n    };\n  };\n\n  _AudioSegmentStream.prototype = new stream();\n  /**\n   * Constructs a single-track, ISO BMFF media segment from H264 data\n   * events. The output of this stream can be fed to a SourceBuffer\n   * configured with a suitable initialization segment.\n   * @param track {object} track metadata configuration\n   * @param options {object} transmuxer options object\n   * @param options.alignGopsAtEnd {boolean} If true, start from the end of the\n   *        gopsToAlignWith list when attempting to align gop pts\n   * @param options.keepOriginalTimestamps {boolean} If true, keep the timestamps\n   *        in the source; false to adjust the first segment to start at 0.\n   */\n\n  _VideoSegmentStream = function VideoSegmentStream(track, options) {\n    var sequenceNumber,\n        nalUnits = [],\n        gopsToAlignWith = [],\n        config,\n        pps;\n    options = options || {};\n    sequenceNumber = options.firstSequenceNumber || 0;\n\n    _VideoSegmentStream.prototype.init.call(this);\n\n    delete track.minPTS;\n    this.gopCache_ = [];\n    /**\n      * Constructs a ISO BMFF segment given H264 nalUnits\n      * @param {Object} nalUnit A data event representing a nalUnit\n      * @param {String} nalUnit.nalUnitType\n      * @param {Object} nalUnit.config Properties for a mp4 track\n      * @param {Uint8Array} nalUnit.data The nalUnit bytes\n      * @see lib/codecs/h264.js\n     **/\n\n    this.push = function (nalUnit) {\n      trackDecodeInfo.collectDtsInfo(track, nalUnit); // record the track config\n\n      if (nalUnit.nalUnitType === 'seq_parameter_set_rbsp' && !config) {\n        config = nalUnit.config;\n        track.sps = [nalUnit.data];\n        videoProperties.forEach(function (prop) {\n          track[prop] = config[prop];\n        }, this);\n      }\n\n      if (nalUnit.nalUnitType === 'pic_parameter_set_rbsp' && !pps) {\n        pps = nalUnit.data;\n        track.pps = [nalUnit.data];\n      } // buffer video until flush() is called\n\n\n      nalUnits.push(nalUnit);\n    };\n    /**\n      * Pass constructed ISO BMFF track and boxes on to the\n      * next stream in the pipeline\n     **/\n\n\n    this.flush = function () {\n      var frames,\n          gopForFusion,\n          gops,\n          moof,\n          mdat,\n          boxes,\n          prependedContentDuration = 0,\n          firstGop,\n          lastGop; // Throw away nalUnits at the start of the byte stream until\n      // we find the first AUD\n\n      while (nalUnits.length) {\n        if (nalUnits[0].nalUnitType === 'access_unit_delimiter_rbsp') {\n          break;\n        }\n\n        nalUnits.shift();\n      } // Return early if no video data has been observed\n\n\n      if (nalUnits.length === 0) {\n        this.resetStream_();\n        this.trigger('done', 'VideoSegmentStream');\n        return;\n      } // Organize the raw nal-units into arrays that represent\n      // higher-level constructs such as frames and gops\n      // (group-of-pictures)\n\n\n      frames = frameUtils.groupNalsIntoFrames(nalUnits);\n      gops = frameUtils.groupFramesIntoGops(frames); // If the first frame of this fragment is not a keyframe we have\n      // a problem since MSE (on Chrome) requires a leading keyframe.\n      //\n      // We have two approaches to repairing this situation:\n      // 1) GOP-FUSION:\n      //    This is where we keep track of the GOPS (group-of-pictures)\n      //    from previous fragments and attempt to find one that we can\n      //    prepend to the current fragment in order to create a valid\n      //    fragment.\n      // 2) KEYFRAME-PULLING:\n      //    Here we search for the first keyframe in the fragment and\n      //    throw away all the frames between the start of the fragment\n      //    and that keyframe. We then extend the duration and pull the\n      //    PTS of the keyframe forward so that it covers the time range\n      //    of the frames that were disposed of.\n      //\n      // #1 is far prefereable over #2 which can cause \"stuttering\" but\n      // requires more things to be just right.\n\n      if (!gops[0][0].keyFrame) {\n        // Search for a gop for fusion from our gopCache\n        gopForFusion = this.getGopForFusion_(nalUnits[0], track);\n\n        if (gopForFusion) {\n          // in order to provide more accurate timing information about the segment, save\n          // the number of seconds prepended to the original segment due to GOP fusion\n          prependedContentDuration = gopForFusion.duration;\n          gops.unshift(gopForFusion); // Adjust Gops' metadata to account for the inclusion of the\n          // new gop at the beginning\n\n          gops.byteLength += gopForFusion.byteLength;\n          gops.nalCount += gopForFusion.nalCount;\n          gops.pts = gopForFusion.pts;\n          gops.dts = gopForFusion.dts;\n          gops.duration += gopForFusion.duration;\n        } else {\n          // If we didn't find a candidate gop fall back to keyframe-pulling\n          gops = frameUtils.extendFirstKeyFrame(gops);\n        }\n      } // Trim gops to align with gopsToAlignWith\n\n\n      if (gopsToAlignWith.length) {\n        var alignedGops;\n\n        if (options.alignGopsAtEnd) {\n          alignedGops = this.alignGopsAtEnd_(gops);\n        } else {\n          alignedGops = this.alignGopsAtStart_(gops);\n        }\n\n        if (!alignedGops) {\n          // save all the nals in the last GOP into the gop cache\n          this.gopCache_.unshift({\n            gop: gops.pop(),\n            pps: track.pps,\n            sps: track.sps\n          }); // Keep a maximum of 6 GOPs in the cache\n\n          this.gopCache_.length = Math.min(6, this.gopCache_.length); // Clear nalUnits\n\n          nalUnits = []; // return early no gops can be aligned with desired gopsToAlignWith\n\n          this.resetStream_();\n          this.trigger('done', 'VideoSegmentStream');\n          return;\n        } // Some gops were trimmed. clear dts info so minSegmentDts and pts are correct\n        // when recalculated before sending off to CoalesceStream\n\n\n        trackDecodeInfo.clearDtsInfo(track);\n        gops = alignedGops;\n      }\n\n      trackDecodeInfo.collectDtsInfo(track, gops); // First, we have to build the index from byte locations to\n      // samples (that is, frames) in the video data\n\n      track.samples = frameUtils.generateSampleTable(gops); // Concatenate the video data and construct the mdat\n\n      mdat = mp4Generator.mdat(frameUtils.concatenateNalData(gops));\n      track.baseMediaDecodeTime = trackDecodeInfo.calculateTrackBaseMediaDecodeTime(track, options.keepOriginalTimestamps);\n      this.trigger('processedGopsInfo', gops.map(function (gop) {\n        return {\n          pts: gop.pts,\n          dts: gop.dts,\n          byteLength: gop.byteLength\n        };\n      }));\n      firstGop = gops[0];\n      lastGop = gops[gops.length - 1];\n      this.trigger('segmentTimingInfo', generateSegmentTimingInfo(track.baseMediaDecodeTime, firstGop.dts, firstGop.pts, lastGop.dts + lastGop.duration, lastGop.pts + lastGop.duration, prependedContentDuration));\n      this.trigger('timingInfo', {\n        start: gops[0].pts,\n        end: gops[gops.length - 1].pts + gops[gops.length - 1].duration\n      }); // save all the nals in the last GOP into the gop cache\n\n      this.gopCache_.unshift({\n        gop: gops.pop(),\n        pps: track.pps,\n        sps: track.sps\n      }); // Keep a maximum of 6 GOPs in the cache\n\n      this.gopCache_.length = Math.min(6, this.gopCache_.length); // Clear nalUnits\n\n      nalUnits = [];\n      this.trigger('baseMediaDecodeTime', track.baseMediaDecodeTime);\n      this.trigger('timelineStartInfo', track.timelineStartInfo);\n      moof = mp4Generator.moof(sequenceNumber, [track]); // it would be great to allocate this array up front instead of\n      // throwing away hundreds of media segment fragments\n\n      boxes = new Uint8Array(moof.byteLength + mdat.byteLength); // Bump the sequence number for next time\n\n      sequenceNumber++;\n      boxes.set(moof);\n      boxes.set(mdat, moof.byteLength);\n      this.trigger('data', {\n        track: track,\n        boxes: boxes\n      });\n      this.resetStream_(); // Continue with the flush process now\n\n      this.trigger('done', 'VideoSegmentStream');\n    };\n\n    this.reset = function () {\n      this.resetStream_();\n      nalUnits = [];\n      this.gopCache_.length = 0;\n      gopsToAlignWith.length = 0;\n      this.trigger('reset');\n    };\n\n    this.resetStream_ = function () {\n      trackDecodeInfo.clearDtsInfo(track); // reset config and pps because they may differ across segments\n      // for instance, when we are rendition switching\n\n      config = undefined;\n      pps = undefined;\n    }; // Search for a candidate Gop for gop-fusion from the gop cache and\n    // return it or return null if no good candidate was found\n\n\n    this.getGopForFusion_ = function (nalUnit) {\n      var halfSecond = 45000,\n          // Half-a-second in a 90khz clock\n      allowableOverlap = 10000,\n          // About 3 frames @ 30fps\n      nearestDistance = Infinity,\n          dtsDistance,\n          nearestGopObj,\n          currentGop,\n          currentGopObj,\n          i; // Search for the GOP nearest to the beginning of this nal unit\n\n      for (i = 0; i < this.gopCache_.length; i++) {\n        currentGopObj = this.gopCache_[i];\n        currentGop = currentGopObj.gop; // Reject Gops with different SPS or PPS\n\n        if (!(track.pps && arrayEquals(track.pps[0], currentGopObj.pps[0])) || !(track.sps && arrayEquals(track.sps[0], currentGopObj.sps[0]))) {\n          continue;\n        } // Reject Gops that would require a negative baseMediaDecodeTime\n\n\n        if (currentGop.dts < track.timelineStartInfo.dts) {\n          continue;\n        } // The distance between the end of the gop and the start of the nalUnit\n\n\n        dtsDistance = nalUnit.dts - currentGop.dts - currentGop.duration; // Only consider GOPS that start before the nal unit and end within\n        // a half-second of the nal unit\n\n        if (dtsDistance >= -allowableOverlap && dtsDistance <= halfSecond) {\n          // Always use the closest GOP we found if there is more than\n          // one candidate\n          if (!nearestGopObj || nearestDistance > dtsDistance) {\n            nearestGopObj = currentGopObj;\n            nearestDistance = dtsDistance;\n          }\n        }\n      }\n\n      if (nearestGopObj) {\n        return nearestGopObj.gop;\n      }\n\n      return null;\n    }; // trim gop list to the first gop found that has a matching pts with a gop in the list\n    // of gopsToAlignWith starting from the START of the list\n\n\n    this.alignGopsAtStart_ = function (gops) {\n      var alignIndex, gopIndex, align, gop, byteLength, nalCount, duration, alignedGops;\n      byteLength = gops.byteLength;\n      nalCount = gops.nalCount;\n      duration = gops.duration;\n      alignIndex = gopIndex = 0;\n\n      while (alignIndex < gopsToAlignWith.length && gopIndex < gops.length) {\n        align = gopsToAlignWith[alignIndex];\n        gop = gops[gopIndex];\n\n        if (align.pts === gop.pts) {\n          break;\n        }\n\n        if (gop.pts > align.pts) {\n          // this current gop starts after the current gop we want to align on, so increment\n          // align index\n          alignIndex++;\n          continue;\n        } // current gop starts before the current gop we want to align on. so increment gop\n        // index\n\n\n        gopIndex++;\n        byteLength -= gop.byteLength;\n        nalCount -= gop.nalCount;\n        duration -= gop.duration;\n      }\n\n      if (gopIndex === 0) {\n        // no gops to trim\n        return gops;\n      }\n\n      if (gopIndex === gops.length) {\n        // all gops trimmed, skip appending all gops\n        return null;\n      }\n\n      alignedGops = gops.slice(gopIndex);\n      alignedGops.byteLength = byteLength;\n      alignedGops.duration = duration;\n      alignedGops.nalCount = nalCount;\n      alignedGops.pts = alignedGops[0].pts;\n      alignedGops.dts = alignedGops[0].dts;\n      return alignedGops;\n    }; // trim gop list to the first gop found that has a matching pts with a gop in the list\n    // of gopsToAlignWith starting from the END of the list\n\n\n    this.alignGopsAtEnd_ = function (gops) {\n      var alignIndex, gopIndex, align, gop, alignEndIndex, matchFound;\n      alignIndex = gopsToAlignWith.length - 1;\n      gopIndex = gops.length - 1;\n      alignEndIndex = null;\n      matchFound = false;\n\n      while (alignIndex >= 0 && gopIndex >= 0) {\n        align = gopsToAlignWith[alignIndex];\n        gop = gops[gopIndex];\n\n        if (align.pts === gop.pts) {\n          matchFound = true;\n          break;\n        }\n\n        if (align.pts > gop.pts) {\n          alignIndex--;\n          continue;\n        }\n\n        if (alignIndex === gopsToAlignWith.length - 1) {\n          // gop.pts is greater than the last alignment candidate. If no match is found\n          // by the end of this loop, we still want to append gops that come after this\n          // point\n          alignEndIndex = gopIndex;\n        }\n\n        gopIndex--;\n      }\n\n      if (!matchFound && alignEndIndex === null) {\n        return null;\n      }\n\n      var trimIndex;\n\n      if (matchFound) {\n        trimIndex = gopIndex;\n      } else {\n        trimIndex = alignEndIndex;\n      }\n\n      if (trimIndex === 0) {\n        return gops;\n      }\n\n      var alignedGops = gops.slice(trimIndex);\n      var metadata = alignedGops.reduce(function (total, gop) {\n        total.byteLength += gop.byteLength;\n        total.duration += gop.duration;\n        total.nalCount += gop.nalCount;\n        return total;\n      }, {\n        byteLength: 0,\n        duration: 0,\n        nalCount: 0\n      });\n      alignedGops.byteLength = metadata.byteLength;\n      alignedGops.duration = metadata.duration;\n      alignedGops.nalCount = metadata.nalCount;\n      alignedGops.pts = alignedGops[0].pts;\n      alignedGops.dts = alignedGops[0].dts;\n      return alignedGops;\n    };\n\n    this.alignGopsWith = function (newGopsToAlignWith) {\n      gopsToAlignWith = newGopsToAlignWith;\n    };\n  };\n\n  _VideoSegmentStream.prototype = new stream();\n  /**\n   * A Stream that can combine multiple streams (ie. audio & video)\n   * into a single output segment for MSE. Also supports audio-only\n   * and video-only streams.\n   * @param options {object} transmuxer options object\n   * @param options.keepOriginalTimestamps {boolean} If true, keep the timestamps\n   *        in the source; false to adjust the first segment to start at media timeline start.\n   */\n\n  _CoalesceStream = function CoalesceStream(options, metadataStream) {\n    // Number of Tracks per output segment\n    // If greater than 1, we combine multiple\n    // tracks into a single segment\n    this.numberOfTracks = 0;\n    this.metadataStream = metadataStream;\n    options = options || {};\n\n    if (typeof options.remux !== 'undefined') {\n      this.remuxTracks = !!options.remux;\n    } else {\n      this.remuxTracks = true;\n    }\n\n    if (typeof options.keepOriginalTimestamps === 'boolean') {\n      this.keepOriginalTimestamps = options.keepOriginalTimestamps;\n    } else {\n      this.keepOriginalTimestamps = false;\n    }\n\n    this.pendingTracks = [];\n    this.videoTrack = null;\n    this.pendingBoxes = [];\n    this.pendingCaptions = [];\n    this.pendingMetadata = [];\n    this.pendingBytes = 0;\n    this.emittedTracks = 0;\n\n    _CoalesceStream.prototype.init.call(this); // Take output from multiple\n\n\n    this.push = function (output) {\n      // buffer incoming captions until the associated video segment\n      // finishes\n      if (output.text) {\n        return this.pendingCaptions.push(output);\n      } // buffer incoming id3 tags until the final flush\n\n\n      if (output.frames) {\n        return this.pendingMetadata.push(output);\n      } // Add this track to the list of pending tracks and store\n      // important information required for the construction of\n      // the final segment\n\n\n      this.pendingTracks.push(output.track);\n      this.pendingBytes += output.boxes.byteLength; // TODO: is there an issue for this against chrome?\n      // We unshift audio and push video because\n      // as of Chrome 75 when switching from\n      // one init segment to another if the video\n      // mdat does not appear after the audio mdat\n      // only audio will play for the duration of our transmux.\n\n      if (output.track.type === 'video') {\n        this.videoTrack = output.track;\n        this.pendingBoxes.push(output.boxes);\n      }\n\n      if (output.track.type === 'audio') {\n        this.audioTrack = output.track;\n        this.pendingBoxes.unshift(output.boxes);\n      }\n    };\n  };\n\n  _CoalesceStream.prototype = new stream();\n\n  _CoalesceStream.prototype.flush = function (flushSource) {\n    var offset = 0,\n        event = {\n      captions: [],\n      captionStreams: {},\n      metadata: [],\n      info: {}\n    },\n        caption,\n        id3,\n        initSegment,\n        timelineStartPts = 0,\n        i;\n\n    if (this.pendingTracks.length < this.numberOfTracks) {\n      if (flushSource !== 'VideoSegmentStream' && flushSource !== 'AudioSegmentStream') {\n        // Return because we haven't received a flush from a data-generating\n        // portion of the segment (meaning that we have only recieved meta-data\n        // or captions.)\n        return;\n      } else if (this.remuxTracks) {\n        // Return until we have enough tracks from the pipeline to remux (if we\n        // are remuxing audio and video into a single MP4)\n        return;\n      } else if (this.pendingTracks.length === 0) {\n        // In the case where we receive a flush without any data having been\n        // received we consider it an emitted track for the purposes of coalescing\n        // `done` events.\n        // We do this for the case where there is an audio and video track in the\n        // segment but no audio data. (seen in several playlists with alternate\n        // audio tracks and no audio present in the main TS segments.)\n        this.emittedTracks++;\n\n        if (this.emittedTracks >= this.numberOfTracks) {\n          this.trigger('done');\n          this.emittedTracks = 0;\n        }\n\n        return;\n      }\n    }\n\n    if (this.videoTrack) {\n      timelineStartPts = this.videoTrack.timelineStartInfo.pts;\n      videoProperties.forEach(function (prop) {\n        event.info[prop] = this.videoTrack[prop];\n      }, this);\n    } else if (this.audioTrack) {\n      timelineStartPts = this.audioTrack.timelineStartInfo.pts;\n      audioProperties.forEach(function (prop) {\n        event.info[prop] = this.audioTrack[prop];\n      }, this);\n    }\n\n    if (this.videoTrack || this.audioTrack) {\n      if (this.pendingTracks.length === 1) {\n        event.type = this.pendingTracks[0].type;\n      } else {\n        event.type = 'combined';\n      }\n\n      this.emittedTracks += this.pendingTracks.length;\n      initSegment = mp4Generator.initSegment(this.pendingTracks); // Create a new typed array to hold the init segment\n\n      event.initSegment = new Uint8Array(initSegment.byteLength); // Create an init segment containing a moov\n      // and track definitions\n\n      event.initSegment.set(initSegment); // Create a new typed array to hold the moof+mdats\n\n      event.data = new Uint8Array(this.pendingBytes); // Append each moof+mdat (one per track) together\n\n      for (i = 0; i < this.pendingBoxes.length; i++) {\n        event.data.set(this.pendingBoxes[i], offset);\n        offset += this.pendingBoxes[i].byteLength;\n      } // Translate caption PTS times into second offsets to match the\n      // video timeline for the segment, and add track info\n\n\n      for (i = 0; i < this.pendingCaptions.length; i++) {\n        caption = this.pendingCaptions[i];\n        caption.startTime = clock.metadataTsToSeconds(caption.startPts, timelineStartPts, this.keepOriginalTimestamps);\n        caption.endTime = clock.metadataTsToSeconds(caption.endPts, timelineStartPts, this.keepOriginalTimestamps);\n        event.captionStreams[caption.stream] = true;\n        event.captions.push(caption);\n      } // Translate ID3 frame PTS times into second offsets to match the\n      // video timeline for the segment\n\n\n      for (i = 0; i < this.pendingMetadata.length; i++) {\n        id3 = this.pendingMetadata[i];\n        id3.cueTime = clock.metadataTsToSeconds(id3.pts, timelineStartPts, this.keepOriginalTimestamps);\n        event.metadata.push(id3);\n      } // We add this to every single emitted segment even though we only need\n      // it for the first\n\n\n      event.metadata.dispatchType = this.metadataStream.dispatchType; // Reset stream state\n\n      this.pendingTracks.length = 0;\n      this.videoTrack = null;\n      this.pendingBoxes.length = 0;\n      this.pendingCaptions.length = 0;\n      this.pendingBytes = 0;\n      this.pendingMetadata.length = 0; // Emit the built segment\n      // We include captions and ID3 tags for backwards compatibility,\n      // ideally we should send only video and audio in the data event\n\n      this.trigger('data', event); // Emit each caption to the outside world\n      // Ideally, this would happen immediately on parsing captions,\n      // but we need to ensure that video data is sent back first\n      // so that caption timing can be adjusted to match video timing\n\n      for (i = 0; i < event.captions.length; i++) {\n        caption = event.captions[i];\n        this.trigger('caption', caption);\n      } // Emit each id3 tag to the outside world\n      // Ideally, this would happen immediately on parsing the tag,\n      // but we need to ensure that video data is sent back first\n      // so that ID3 frame timing can be adjusted to match video timing\n\n\n      for (i = 0; i < event.metadata.length; i++) {\n        id3 = event.metadata[i];\n        this.trigger('id3Frame', id3);\n      }\n    } // Only emit `done` if all tracks have been flushed and emitted\n\n\n    if (this.emittedTracks >= this.numberOfTracks) {\n      this.trigger('done');\n      this.emittedTracks = 0;\n    }\n  };\n\n  _CoalesceStream.prototype.setRemux = function (val) {\n    this.remuxTracks = val;\n  };\n  /**\n   * A Stream that expects MP2T binary data as input and produces\n   * corresponding media segments, suitable for use with Media Source\n   * Extension (MSE) implementations that support the ISO BMFF byte\n   * stream format, like Chrome.\n   */\n\n\n  _Transmuxer = function Transmuxer(options) {\n    var self = this,\n        hasFlushed = true,\n        videoTrack,\n        audioTrack;\n\n    _Transmuxer.prototype.init.call(this);\n\n    options = options || {};\n    this.baseMediaDecodeTime = options.baseMediaDecodeTime || 0;\n    this.transmuxPipeline_ = {};\n\n    this.setupAacPipeline = function () {\n      var pipeline = {};\n      this.transmuxPipeline_ = pipeline;\n      pipeline.type = 'aac';\n      pipeline.metadataStream = new m2ts_1.MetadataStream(); // set up the parsing pipeline\n\n      pipeline.aacStream = new aac();\n      pipeline.audioTimestampRolloverStream = new m2ts_1.TimestampRolloverStream('audio');\n      pipeline.timedMetadataTimestampRolloverStream = new m2ts_1.TimestampRolloverStream('timed-metadata');\n      pipeline.adtsStream = new adts();\n      pipeline.coalesceStream = new _CoalesceStream(options, pipeline.metadataStream);\n      pipeline.headOfPipeline = pipeline.aacStream;\n      pipeline.aacStream.pipe(pipeline.audioTimestampRolloverStream).pipe(pipeline.adtsStream);\n      pipeline.aacStream.pipe(pipeline.timedMetadataTimestampRolloverStream).pipe(pipeline.metadataStream).pipe(pipeline.coalesceStream);\n      pipeline.metadataStream.on('timestamp', function (frame) {\n        pipeline.aacStream.setTimestamp(frame.timeStamp);\n      });\n      pipeline.aacStream.on('data', function (data) {\n        if (data.type !== 'timed-metadata' && data.type !== 'audio' || pipeline.audioSegmentStream) {\n          return;\n        }\n\n        audioTrack = audioTrack || {\n          timelineStartInfo: {\n            baseMediaDecodeTime: self.baseMediaDecodeTime\n          },\n          codec: 'adts',\n          type: 'audio'\n        }; // hook up the audio segment stream to the first track with aac data\n\n        pipeline.coalesceStream.numberOfTracks++;\n        pipeline.audioSegmentStream = new _AudioSegmentStream(audioTrack, options);\n        pipeline.audioSegmentStream.on('log', self.getLogTrigger_('audioSegmentStream'));\n        pipeline.audioSegmentStream.on('timingInfo', self.trigger.bind(self, 'audioTimingInfo')); // Set up the final part of the audio pipeline\n\n        pipeline.adtsStream.pipe(pipeline.audioSegmentStream).pipe(pipeline.coalesceStream); // emit pmt info\n\n        self.trigger('trackinfo', {\n          hasAudio: !!audioTrack,\n          hasVideo: !!videoTrack\n        });\n      }); // Re-emit any data coming from the coalesce stream to the outside world\n\n      pipeline.coalesceStream.on('data', this.trigger.bind(this, 'data')); // Let the consumer know we have finished flushing the entire pipeline\n\n      pipeline.coalesceStream.on('done', this.trigger.bind(this, 'done'));\n    };\n\n    this.setupTsPipeline = function () {\n      var pipeline = {};\n      this.transmuxPipeline_ = pipeline;\n      pipeline.type = 'ts';\n      pipeline.metadataStream = new m2ts_1.MetadataStream(); // set up the parsing pipeline\n\n      pipeline.packetStream = new m2ts_1.TransportPacketStream();\n      pipeline.parseStream = new m2ts_1.TransportParseStream();\n      pipeline.elementaryStream = new m2ts_1.ElementaryStream();\n      pipeline.timestampRolloverStream = new m2ts_1.TimestampRolloverStream();\n      pipeline.adtsStream = new adts();\n      pipeline.h264Stream = new H264Stream();\n      pipeline.captionStream = new m2ts_1.CaptionStream(options);\n      pipeline.coalesceStream = new _CoalesceStream(options, pipeline.metadataStream);\n      pipeline.headOfPipeline = pipeline.packetStream; // disassemble MPEG2-TS packets into elementary streams\n\n      pipeline.packetStream.pipe(pipeline.parseStream).pipe(pipeline.elementaryStream).pipe(pipeline.timestampRolloverStream); // !!THIS ORDER IS IMPORTANT!!\n      // demux the streams\n\n      pipeline.timestampRolloverStream.pipe(pipeline.h264Stream);\n      pipeline.timestampRolloverStream.pipe(pipeline.adtsStream);\n      pipeline.timestampRolloverStream.pipe(pipeline.metadataStream).pipe(pipeline.coalesceStream); // Hook up CEA-608/708 caption stream\n\n      pipeline.h264Stream.pipe(pipeline.captionStream).pipe(pipeline.coalesceStream);\n      pipeline.elementaryStream.on('data', function (data) {\n        var i;\n\n        if (data.type === 'metadata') {\n          i = data.tracks.length; // scan the tracks listed in the metadata\n\n          while (i--) {\n            if (!videoTrack && data.tracks[i].type === 'video') {\n              videoTrack = data.tracks[i];\n              videoTrack.timelineStartInfo.baseMediaDecodeTime = self.baseMediaDecodeTime;\n            } else if (!audioTrack && data.tracks[i].type === 'audio') {\n              audioTrack = data.tracks[i];\n              audioTrack.timelineStartInfo.baseMediaDecodeTime = self.baseMediaDecodeTime;\n            }\n          } // hook up the video segment stream to the first track with h264 data\n\n\n          if (videoTrack && !pipeline.videoSegmentStream) {\n            pipeline.coalesceStream.numberOfTracks++;\n            pipeline.videoSegmentStream = new _VideoSegmentStream(videoTrack, options);\n            pipeline.videoSegmentStream.on('log', self.getLogTrigger_('videoSegmentStream'));\n            pipeline.videoSegmentStream.on('timelineStartInfo', function (timelineStartInfo) {\n              // When video emits timelineStartInfo data after a flush, we forward that\n              // info to the AudioSegmentStream, if it exists, because video timeline\n              // data takes precedence.  Do not do this if keepOriginalTimestamps is set,\n              // because this is a particularly subtle form of timestamp alteration.\n              if (audioTrack && !options.keepOriginalTimestamps) {\n                audioTrack.timelineStartInfo = timelineStartInfo; // On the first segment we trim AAC frames that exist before the\n                // very earliest DTS we have seen in video because Chrome will\n                // interpret any video track with a baseMediaDecodeTime that is\n                // non-zero as a gap.\n\n                pipeline.audioSegmentStream.setEarliestDts(timelineStartInfo.dts - self.baseMediaDecodeTime);\n              }\n            });\n            pipeline.videoSegmentStream.on('processedGopsInfo', self.trigger.bind(self, 'gopInfo'));\n            pipeline.videoSegmentStream.on('segmentTimingInfo', self.trigger.bind(self, 'videoSegmentTimingInfo'));\n            pipeline.videoSegmentStream.on('baseMediaDecodeTime', function (baseMediaDecodeTime) {\n              if (audioTrack) {\n                pipeline.audioSegmentStream.setVideoBaseMediaDecodeTime(baseMediaDecodeTime);\n              }\n            });\n            pipeline.videoSegmentStream.on('timingInfo', self.trigger.bind(self, 'videoTimingInfo')); // Set up the final part of the video pipeline\n\n            pipeline.h264Stream.pipe(pipeline.videoSegmentStream).pipe(pipeline.coalesceStream);\n          }\n\n          if (audioTrack && !pipeline.audioSegmentStream) {\n            // hook up the audio segment stream to the first track with aac data\n            pipeline.coalesceStream.numberOfTracks++;\n            pipeline.audioSegmentStream = new _AudioSegmentStream(audioTrack, options);\n            pipeline.audioSegmentStream.on('log', self.getLogTrigger_('audioSegmentStream'));\n            pipeline.audioSegmentStream.on('timingInfo', self.trigger.bind(self, 'audioTimingInfo'));\n            pipeline.audioSegmentStream.on('segmentTimingInfo', self.trigger.bind(self, 'audioSegmentTimingInfo')); // Set up the final part of the audio pipeline\n\n            pipeline.adtsStream.pipe(pipeline.audioSegmentStream).pipe(pipeline.coalesceStream);\n          } // emit pmt info\n\n\n          self.trigger('trackinfo', {\n            hasAudio: !!audioTrack,\n            hasVideo: !!videoTrack\n          });\n        }\n      }); // Re-emit any data coming from the coalesce stream to the outside world\n\n      pipeline.coalesceStream.on('data', this.trigger.bind(this, 'data'));\n      pipeline.coalesceStream.on('id3Frame', function (id3Frame) {\n        id3Frame.dispatchType = pipeline.metadataStream.dispatchType;\n        self.trigger('id3Frame', id3Frame);\n      });\n      pipeline.coalesceStream.on('caption', this.trigger.bind(this, 'caption')); // Let the consumer know we have finished flushing the entire pipeline\n\n      pipeline.coalesceStream.on('done', this.trigger.bind(this, 'done'));\n    }; // hook up the segment streams once track metadata is delivered\n\n\n    this.setBaseMediaDecodeTime = function (baseMediaDecodeTime) {\n      var pipeline = this.transmuxPipeline_;\n\n      if (!options.keepOriginalTimestamps) {\n        this.baseMediaDecodeTime = baseMediaDecodeTime;\n      }\n\n      if (audioTrack) {\n        audioTrack.timelineStartInfo.dts = undefined;\n        audioTrack.timelineStartInfo.pts = undefined;\n        trackDecodeInfo.clearDtsInfo(audioTrack);\n\n        if (pipeline.audioTimestampRolloverStream) {\n          pipeline.audioTimestampRolloverStream.discontinuity();\n        }\n      }\n\n      if (videoTrack) {\n        if (pipeline.videoSegmentStream) {\n          pipeline.videoSegmentStream.gopCache_ = [];\n        }\n\n        videoTrack.timelineStartInfo.dts = undefined;\n        videoTrack.timelineStartInfo.pts = undefined;\n        trackDecodeInfo.clearDtsInfo(videoTrack);\n        pipeline.captionStream.reset();\n      }\n\n      if (pipeline.timestampRolloverStream) {\n        pipeline.timestampRolloverStream.discontinuity();\n      }\n    };\n\n    this.setAudioAppendStart = function (timestamp) {\n      if (audioTrack) {\n        this.transmuxPipeline_.audioSegmentStream.setAudioAppendStart(timestamp);\n      }\n    };\n\n    this.setRemux = function (val) {\n      var pipeline = this.transmuxPipeline_;\n      options.remux = val;\n\n      if (pipeline && pipeline.coalesceStream) {\n        pipeline.coalesceStream.setRemux(val);\n      }\n    };\n\n    this.alignGopsWith = function (gopsToAlignWith) {\n      if (videoTrack && this.transmuxPipeline_.videoSegmentStream) {\n        this.transmuxPipeline_.videoSegmentStream.alignGopsWith(gopsToAlignWith);\n      }\n    };\n\n    this.getLogTrigger_ = function (key) {\n      var self = this;\n      return function (event) {\n        event.stream = key;\n        self.trigger('log', event);\n      };\n    }; // feed incoming data to the front of the parsing pipeline\n\n\n    this.push = function (data) {\n      if (hasFlushed) {\n        var isAac = isLikelyAacData(data);\n\n        if (isAac && this.transmuxPipeline_.type !== 'aac') {\n          this.setupAacPipeline();\n        } else if (!isAac && this.transmuxPipeline_.type !== 'ts') {\n          this.setupTsPipeline();\n        }\n\n        if (this.transmuxPipeline_) {\n          var keys = Object.keys(this.transmuxPipeline_);\n\n          for (var i = 0; i < keys.length; i++) {\n            var key = keys[i]; // skip non-stream keys and headOfPipeline\n            // which is just a duplicate\n\n            if (key === 'headOfPipeline' || !this.transmuxPipeline_[key].on) {\n              continue;\n            }\n\n            this.transmuxPipeline_[key].on('log', this.getLogTrigger_(key));\n          }\n        }\n\n        hasFlushed = false;\n      }\n\n      this.transmuxPipeline_.headOfPipeline.push(data);\n    }; // flush any buffered data\n\n\n    this.flush = function () {\n      hasFlushed = true; // Start at the top of the pipeline and flush all pending work\n\n      this.transmuxPipeline_.headOfPipeline.flush();\n    };\n\n    this.endTimeline = function () {\n      this.transmuxPipeline_.headOfPipeline.endTimeline();\n    };\n\n    this.reset = function () {\n      if (this.transmuxPipeline_.headOfPipeline) {\n        this.transmuxPipeline_.headOfPipeline.reset();\n      }\n    }; // Caption data has to be reset when seeking outside buffered range\n\n\n    this.resetCaptions = function () {\n      if (this.transmuxPipeline_.captionStream) {\n        this.transmuxPipeline_.captionStream.reset();\n      }\n    };\n  };\n\n  _Transmuxer.prototype = new stream();\n  var transmuxer = {\n    Transmuxer: _Transmuxer,\n    VideoSegmentStream: _VideoSegmentStream,\n    AudioSegmentStream: _AudioSegmentStream,\n    AUDIO_PROPERTIES: audioProperties,\n    VIDEO_PROPERTIES: videoProperties,\n    // exported for testing\n    generateSegmentTimingInfo: generateSegmentTimingInfo\n  };\n  /**\n   * mux.js\n   *\n   * Copyright (c) Brightcove\n   * Licensed Apache-2.0 https://github.com/videojs/mux.js/blob/master/LICENSE\n   */\n\n  var toUnsigned$3 = function toUnsigned(value) {\n    return value >>> 0;\n  };\n\n  var toHexString$1 = function toHexString(value) {\n    return ('00' + value.toString(16)).slice(-2);\n  };\n\n  var bin = {\n    toUnsigned: toUnsigned$3,\n    toHexString: toHexString$1\n  };\n\n  var parseType$1 = function parseType(buffer) {\n    var result = '';\n    result += String.fromCharCode(buffer[0]);\n    result += String.fromCharCode(buffer[1]);\n    result += String.fromCharCode(buffer[2]);\n    result += String.fromCharCode(buffer[3]);\n    return result;\n  };\n\n  var parseType_1 = parseType$1;\n  var toUnsigned$2 = bin.toUnsigned;\n\n  var findBox = function findBox(data, path) {\n    var results = [],\n        i,\n        size,\n        type,\n        end,\n        subresults;\n\n    if (!path.length) {\n      // short-circuit the search for empty paths\n      return null;\n    }\n\n    for (i = 0; i < data.byteLength;) {\n      size = toUnsigned$2(data[i] << 24 | data[i + 1] << 16 | data[i + 2] << 8 | data[i + 3]);\n      type = parseType_1(data.subarray(i + 4, i + 8));\n      end = size > 1 ? i + size : data.byteLength;\n\n      if (type === path[0]) {\n        if (path.length === 1) {\n          // this is the end of the path and we've found the box we were\n          // looking for\n          results.push(data.subarray(i + 8, end));\n        } else {\n          // recursively search for the next box along the path\n          subresults = findBox(data.subarray(i + 8, end), path.slice(1));\n\n          if (subresults.length) {\n            results = results.concat(subresults);\n          }\n        }\n      }\n\n      i = end;\n    } // we've finished searching all of data\n\n\n    return results;\n  };\n\n  var findBox_1 = findBox;\n  var toUnsigned$1 = bin.toUnsigned;\n\n  var tfdt = function tfdt(data) {\n    var result = {\n      version: data[0],\n      flags: new Uint8Array(data.subarray(1, 4)),\n      baseMediaDecodeTime: toUnsigned$1(data[4] << 24 | data[5] << 16 | data[6] << 8 | data[7])\n    };\n\n    if (result.version === 1) {\n      result.baseMediaDecodeTime *= Math.pow(2, 32);\n      result.baseMediaDecodeTime += toUnsigned$1(data[8] << 24 | data[9] << 16 | data[10] << 8 | data[11]);\n    }\n\n    return result;\n  };\n\n  var parseTfdt = tfdt;\n\n  var parseSampleFlags = function parseSampleFlags(flags) {\n    return {\n      isLeading: (flags[0] & 0x0c) >>> 2,\n      dependsOn: flags[0] & 0x03,\n      isDependedOn: (flags[1] & 0xc0) >>> 6,\n      hasRedundancy: (flags[1] & 0x30) >>> 4,\n      paddingValue: (flags[1] & 0x0e) >>> 1,\n      isNonSyncSample: flags[1] & 0x01,\n      degradationPriority: flags[2] << 8 | flags[3]\n    };\n  };\n\n  var parseSampleFlags_1 = parseSampleFlags;\n\n  var trun = function trun(data) {\n    var result = {\n      version: data[0],\n      flags: new Uint8Array(data.subarray(1, 4)),\n      samples: []\n    },\n        view = new DataView(data.buffer, data.byteOffset, data.byteLength),\n        // Flag interpretation\n    dataOffsetPresent = result.flags[2] & 0x01,\n        // compare with 2nd byte of 0x1\n    firstSampleFlagsPresent = result.flags[2] & 0x04,\n        // compare with 2nd byte of 0x4\n    sampleDurationPresent = result.flags[1] & 0x01,\n        // compare with 2nd byte of 0x100\n    sampleSizePresent = result.flags[1] & 0x02,\n        // compare with 2nd byte of 0x200\n    sampleFlagsPresent = result.flags[1] & 0x04,\n        // compare with 2nd byte of 0x400\n    sampleCompositionTimeOffsetPresent = result.flags[1] & 0x08,\n        // compare with 2nd byte of 0x800\n    sampleCount = view.getUint32(4),\n        offset = 8,\n        sample;\n\n    if (dataOffsetPresent) {\n      // 32 bit signed integer\n      result.dataOffset = view.getInt32(offset);\n      offset += 4;\n    } // Overrides the flags for the first sample only. The order of\n    // optional values will be: duration, size, compositionTimeOffset\n\n\n    if (firstSampleFlagsPresent && sampleCount) {\n      sample = {\n        flags: parseSampleFlags_1(data.subarray(offset, offset + 4))\n      };\n      offset += 4;\n\n      if (sampleDurationPresent) {\n        sample.duration = view.getUint32(offset);\n        offset += 4;\n      }\n\n      if (sampleSizePresent) {\n        sample.size = view.getUint32(offset);\n        offset += 4;\n      }\n\n      if (sampleCompositionTimeOffsetPresent) {\n        if (result.version === 1) {\n          sample.compositionTimeOffset = view.getInt32(offset);\n        } else {\n          sample.compositionTimeOffset = view.getUint32(offset);\n        }\n\n        offset += 4;\n      }\n\n      result.samples.push(sample);\n      sampleCount--;\n    }\n\n    while (sampleCount--) {\n      sample = {};\n\n      if (sampleDurationPresent) {\n        sample.duration = view.getUint32(offset);\n        offset += 4;\n      }\n\n      if (sampleSizePresent) {\n        sample.size = view.getUint32(offset);\n        offset += 4;\n      }\n\n      if (sampleFlagsPresent) {\n        sample.flags = parseSampleFlags_1(data.subarray(offset, offset + 4));\n        offset += 4;\n      }\n\n      if (sampleCompositionTimeOffsetPresent) {\n        if (result.version === 1) {\n          sample.compositionTimeOffset = view.getInt32(offset);\n        } else {\n          sample.compositionTimeOffset = view.getUint32(offset);\n        }\n\n        offset += 4;\n      }\n\n      result.samples.push(sample);\n    }\n\n    return result;\n  };\n\n  var parseTrun = trun;\n\n  var tfhd = function tfhd(data) {\n    var view = new DataView(data.buffer, data.byteOffset, data.byteLength),\n        result = {\n      version: data[0],\n      flags: new Uint8Array(data.subarray(1, 4)),\n      trackId: view.getUint32(4)\n    },\n        baseDataOffsetPresent = result.flags[2] & 0x01,\n        sampleDescriptionIndexPresent = result.flags[2] & 0x02,\n        defaultSampleDurationPresent = result.flags[2] & 0x08,\n        defaultSampleSizePresent = result.flags[2] & 0x10,\n        defaultSampleFlagsPresent = result.flags[2] & 0x20,\n        durationIsEmpty = result.flags[0] & 0x010000,\n        defaultBaseIsMoof = result.flags[0] & 0x020000,\n        i;\n    i = 8;\n\n    if (baseDataOffsetPresent) {\n      i += 4; // truncate top 4 bytes\n      // FIXME: should we read the full 64 bits?\n\n      result.baseDataOffset = view.getUint32(12);\n      i += 4;\n    }\n\n    if (sampleDescriptionIndexPresent) {\n      result.sampleDescriptionIndex = view.getUint32(i);\n      i += 4;\n    }\n\n    if (defaultSampleDurationPresent) {\n      result.defaultSampleDuration = view.getUint32(i);\n      i += 4;\n    }\n\n    if (defaultSampleSizePresent) {\n      result.defaultSampleSize = view.getUint32(i);\n      i += 4;\n    }\n\n    if (defaultSampleFlagsPresent) {\n      result.defaultSampleFlags = view.getUint32(i);\n    }\n\n    if (durationIsEmpty) {\n      result.durationIsEmpty = true;\n    }\n\n    if (!baseDataOffsetPresent && defaultBaseIsMoof) {\n      result.baseDataOffsetIsMoof = true;\n    }\n\n    return result;\n  };\n\n  var parseTfhd = tfhd;\n  var discardEmulationPreventionBytes = captionPacketParser.discardEmulationPreventionBytes;\n  var CaptionStream = captionStream.CaptionStream;\n  /**\n    * Maps an offset in the mdat to a sample based on the the size of the samples.\n    * Assumes that `parseSamples` has been called first.\n    *\n    * @param {Number} offset - The offset into the mdat\n    * @param {Object[]} samples - An array of samples, parsed using `parseSamples`\n    * @return {?Object} The matching sample, or null if no match was found.\n    *\n    * @see ISO-BMFF-12/2015, Section 8.8.8\n   **/\n\n  var mapToSample = function mapToSample(offset, samples) {\n    var approximateOffset = offset;\n\n    for (var i = 0; i < samples.length; i++) {\n      var sample = samples[i];\n\n      if (approximateOffset < sample.size) {\n        return sample;\n      }\n\n      approximateOffset -= sample.size;\n    }\n\n    return null;\n  };\n  /**\n    * Finds SEI nal units contained in a Media Data Box.\n    * Assumes that `parseSamples` has been called first.\n    *\n    * @param {Uint8Array} avcStream - The bytes of the mdat\n    * @param {Object[]} samples - The samples parsed out by `parseSamples`\n    * @param {Number} trackId - The trackId of this video track\n    * @return {Object[]} seiNals - the parsed SEI NALUs found.\n    *   The contents of the seiNal should match what is expected by\n    *   CaptionStream.push (nalUnitType, size, data, escapedRBSP, pts, dts)\n    *\n    * @see ISO-BMFF-12/2015, Section 8.1.1\n    * @see Rec. ITU-T H.264, 7.3.2.3.1\n   **/\n\n\n  var findSeiNals = function findSeiNals(avcStream, samples, trackId) {\n    var avcView = new DataView(avcStream.buffer, avcStream.byteOffset, avcStream.byteLength),\n        result = {\n      logs: [],\n      seiNals: []\n    },\n        seiNal,\n        i,\n        length,\n        lastMatchedSample;\n\n    for (i = 0; i + 4 < avcStream.length; i += length) {\n      length = avcView.getUint32(i);\n      i += 4; // Bail if this doesn't appear to be an H264 stream\n\n      if (length <= 0) {\n        continue;\n      }\n\n      switch (avcStream[i] & 0x1F) {\n        case 0x06:\n          var data = avcStream.subarray(i + 1, i + 1 + length);\n          var matchingSample = mapToSample(i, samples);\n          seiNal = {\n            nalUnitType: 'sei_rbsp',\n            size: length,\n            data: data,\n            escapedRBSP: discardEmulationPreventionBytes(data),\n            trackId: trackId\n          };\n\n          if (matchingSample) {\n            seiNal.pts = matchingSample.pts;\n            seiNal.dts = matchingSample.dts;\n            lastMatchedSample = matchingSample;\n          } else if (lastMatchedSample) {\n            // If a matching sample cannot be found, use the last\n            // sample's values as they should be as close as possible\n            seiNal.pts = lastMatchedSample.pts;\n            seiNal.dts = lastMatchedSample.dts;\n          } else {\n            result.logs.push({\n              level: 'warn',\n              message: 'We\\'ve encountered a nal unit without data at ' + i + ' for trackId ' + trackId + '. See mux.js#223.'\n            });\n            break;\n          }\n\n          result.seiNals.push(seiNal);\n          break;\n      }\n    }\n\n    return result;\n  };\n  /**\n    * Parses sample information out of Track Run Boxes and calculates\n    * the absolute presentation and decode timestamps of each sample.\n    *\n    * @param {Array<Uint8Array>} truns - The Trun Run boxes to be parsed\n    * @param {Number} baseMediaDecodeTime - base media decode time from tfdt\n        @see ISO-BMFF-12/2015, Section 8.8.12\n    * @param {Object} tfhd - The parsed Track Fragment Header\n    *   @see inspect.parseTfhd\n    * @return {Object[]} the parsed samples\n    *\n    * @see ISO-BMFF-12/2015, Section 8.8.8\n   **/\n\n\n  var parseSamples = function parseSamples(truns, baseMediaDecodeTime, tfhd) {\n    var currentDts = baseMediaDecodeTime;\n    var defaultSampleDuration = tfhd.defaultSampleDuration || 0;\n    var defaultSampleSize = tfhd.defaultSampleSize || 0;\n    var trackId = tfhd.trackId;\n    var allSamples = [];\n    truns.forEach(function (trun) {\n      // Note: We currently do not parse the sample table as well\n      // as the trun. It's possible some sources will require this.\n      // moov > trak > mdia > minf > stbl\n      var trackRun = parseTrun(trun);\n      var samples = trackRun.samples;\n      samples.forEach(function (sample) {\n        if (sample.duration === undefined) {\n          sample.duration = defaultSampleDuration;\n        }\n\n        if (sample.size === undefined) {\n          sample.size = defaultSampleSize;\n        }\n\n        sample.trackId = trackId;\n        sample.dts = currentDts;\n\n        if (sample.compositionTimeOffset === undefined) {\n          sample.compositionTimeOffset = 0;\n        }\n\n        sample.pts = currentDts + sample.compositionTimeOffset;\n        currentDts += sample.duration;\n      });\n      allSamples = allSamples.concat(samples);\n    });\n    return allSamples;\n  };\n  /**\n    * Parses out caption nals from an FMP4 segment's video tracks.\n    *\n    * @param {Uint8Array} segment - The bytes of a single segment\n    * @param {Number} videoTrackId - The trackId of a video track in the segment\n    * @return {Object.<Number, Object[]>} A mapping of video trackId to\n    *   a list of seiNals found in that track\n   **/\n\n\n  var parseCaptionNals = function parseCaptionNals(segment, videoTrackId) {\n    // To get the samples\n    var trafs = findBox_1(segment, ['moof', 'traf']); // To get SEI NAL units\n\n    var mdats = findBox_1(segment, ['mdat']);\n    var captionNals = {};\n    var mdatTrafPairs = []; // Pair up each traf with a mdat as moofs and mdats are in pairs\n\n    mdats.forEach(function (mdat, index) {\n      var matchingTraf = trafs[index];\n      mdatTrafPairs.push({\n        mdat: mdat,\n        traf: matchingTraf\n      });\n    });\n    mdatTrafPairs.forEach(function (pair) {\n      var mdat = pair.mdat;\n      var traf = pair.traf;\n      var tfhd = findBox_1(traf, ['tfhd']); // Exactly 1 tfhd per traf\n\n      var headerInfo = parseTfhd(tfhd[0]);\n      var trackId = headerInfo.trackId;\n      var tfdt = findBox_1(traf, ['tfdt']); // Either 0 or 1 tfdt per traf\n\n      var baseMediaDecodeTime = tfdt.length > 0 ? parseTfdt(tfdt[0]).baseMediaDecodeTime : 0;\n      var truns = findBox_1(traf, ['trun']);\n      var samples;\n      var result; // Only parse video data for the chosen video track\n\n      if (videoTrackId === trackId && truns.length > 0) {\n        samples = parseSamples(truns, baseMediaDecodeTime, headerInfo);\n        result = findSeiNals(mdat, samples, trackId);\n\n        if (!captionNals[trackId]) {\n          captionNals[trackId] = {\n            seiNals: [],\n            logs: []\n          };\n        }\n\n        captionNals[trackId].seiNals = captionNals[trackId].seiNals.concat(result.seiNals);\n        captionNals[trackId].logs = captionNals[trackId].logs.concat(result.logs);\n      }\n    });\n    return captionNals;\n  };\n  /**\n    * Parses out inband captions from an MP4 container and returns\n    * caption objects that can be used by WebVTT and the TextTrack API.\n    * @see https://developer.mozilla.org/en-US/docs/Web/API/VTTCue\n    * @see https://developer.mozilla.org/en-US/docs/Web/API/TextTrack\n    * Assumes that `probe.getVideoTrackIds` and `probe.timescale` have been called first\n    *\n    * @param {Uint8Array} segment - The fmp4 segment containing embedded captions\n    * @param {Number} trackId - The id of the video track to parse\n    * @param {Number} timescale - The timescale for the video track from the init segment\n    *\n    * @return {?Object[]} parsedCaptions - A list of captions or null if no video tracks\n    * @return {Number} parsedCaptions[].startTime - The time to show the caption in seconds\n    * @return {Number} parsedCaptions[].endTime - The time to stop showing the caption in seconds\n    * @return {String} parsedCaptions[].text - The visible content of the caption\n   **/\n\n\n  var parseEmbeddedCaptions = function parseEmbeddedCaptions(segment, trackId, timescale) {\n    var captionNals; // the ISO-BMFF spec says that trackId can't be zero, but there's some broken content out there\n\n    if (trackId === null) {\n      return null;\n    }\n\n    captionNals = parseCaptionNals(segment, trackId);\n    var trackNals = captionNals[trackId] || {};\n    return {\n      seiNals: trackNals.seiNals,\n      logs: trackNals.logs,\n      timescale: timescale\n    };\n  };\n  /**\n    * Converts SEI NALUs into captions that can be used by video.js\n   **/\n\n\n  var CaptionParser = function CaptionParser() {\n    var isInitialized = false;\n    var captionStream; // Stores segments seen before trackId and timescale are set\n\n    var segmentCache; // Stores video track ID of the track being parsed\n\n    var trackId; // Stores the timescale of the track being parsed\n\n    var timescale; // Stores captions parsed so far\n\n    var parsedCaptions; // Stores whether we are receiving partial data or not\n\n    var parsingPartial;\n    /**\n      * A method to indicate whether a CaptionParser has been initalized\n      * @returns {Boolean}\n     **/\n\n    this.isInitialized = function () {\n      return isInitialized;\n    };\n    /**\n      * Initializes the underlying CaptionStream, SEI NAL parsing\n      * and management, and caption collection\n     **/\n\n\n    this.init = function (options) {\n      captionStream = new CaptionStream();\n      isInitialized = true;\n      parsingPartial = options ? options.isPartial : false; // Collect dispatched captions\n\n      captionStream.on('data', function (event) {\n        // Convert to seconds in the source's timescale\n        event.startTime = event.startPts / timescale;\n        event.endTime = event.endPts / timescale;\n        parsedCaptions.captions.push(event);\n        parsedCaptions.captionStreams[event.stream] = true;\n      });\n      captionStream.on('log', function (log) {\n        parsedCaptions.logs.push(log);\n      });\n    };\n    /**\n      * Determines if a new video track will be selected\n      * or if the timescale changed\n      * @return {Boolean}\n     **/\n\n\n    this.isNewInit = function (videoTrackIds, timescales) {\n      if (videoTrackIds && videoTrackIds.length === 0 || timescales && typeof timescales === 'object' && Object.keys(timescales).length === 0) {\n        return false;\n      }\n\n      return trackId !== videoTrackIds[0] || timescale !== timescales[trackId];\n    };\n    /**\n      * Parses out SEI captions and interacts with underlying\n      * CaptionStream to return dispatched captions\n      *\n      * @param {Uint8Array} segment - The fmp4 segment containing embedded captions\n      * @param {Number[]} videoTrackIds - A list of video tracks found in the init segment\n      * @param {Object.<Number, Number>} timescales - The timescales found in the init segment\n      * @see parseEmbeddedCaptions\n      * @see m2ts/caption-stream.js\n     **/\n\n\n    this.parse = function (segment, videoTrackIds, timescales) {\n      var parsedData;\n\n      if (!this.isInitialized()) {\n        return null; // This is not likely to be a video segment\n      } else if (!videoTrackIds || !timescales) {\n        return null;\n      } else if (this.isNewInit(videoTrackIds, timescales)) {\n        // Use the first video track only as there is no\n        // mechanism to switch to other video tracks\n        trackId = videoTrackIds[0];\n        timescale = timescales[trackId]; // If an init segment has not been seen yet, hold onto segment\n        // data until we have one.\n        // the ISO-BMFF spec says that trackId can't be zero, but there's some broken content out there\n      } else if (trackId === null || !timescale) {\n        segmentCache.push(segment);\n        return null;\n      } // Now that a timescale and trackId is set, parse cached segments\n\n\n      while (segmentCache.length > 0) {\n        var cachedSegment = segmentCache.shift();\n        this.parse(cachedSegment, videoTrackIds, timescales);\n      }\n\n      parsedData = parseEmbeddedCaptions(segment, trackId, timescale);\n\n      if (parsedData && parsedData.logs) {\n        parsedCaptions.logs = parsedCaptions.logs.concat(parsedData.logs);\n      }\n\n      if (parsedData === null || !parsedData.seiNals) {\n        if (parsedCaptions.logs.length) {\n          return {\n            logs: parsedCaptions.logs,\n            captions: [],\n            captionStreams: []\n          };\n        }\n\n        return null;\n      }\n\n      this.pushNals(parsedData.seiNals); // Force the parsed captions to be dispatched\n\n      this.flushStream();\n      return parsedCaptions;\n    };\n    /**\n      * Pushes SEI NALUs onto CaptionStream\n      * @param {Object[]} nals - A list of SEI nals parsed using `parseCaptionNals`\n      * Assumes that `parseCaptionNals` has been called first\n      * @see m2ts/caption-stream.js\n      **/\n\n\n    this.pushNals = function (nals) {\n      if (!this.isInitialized() || !nals || nals.length === 0) {\n        return null;\n      }\n\n      nals.forEach(function (nal) {\n        captionStream.push(nal);\n      });\n    };\n    /**\n      * Flushes underlying CaptionStream to dispatch processed, displayable captions\n      * @see m2ts/caption-stream.js\n     **/\n\n\n    this.flushStream = function () {\n      if (!this.isInitialized()) {\n        return null;\n      }\n\n      if (!parsingPartial) {\n        captionStream.flush();\n      } else {\n        captionStream.partialFlush();\n      }\n    };\n    /**\n      * Reset caption buckets for new data\n     **/\n\n\n    this.clearParsedCaptions = function () {\n      parsedCaptions.captions = [];\n      parsedCaptions.captionStreams = {};\n      parsedCaptions.logs = [];\n    };\n    /**\n      * Resets underlying CaptionStream\n      * @see m2ts/caption-stream.js\n     **/\n\n\n    this.resetCaptionStream = function () {\n      if (!this.isInitialized()) {\n        return null;\n      }\n\n      captionStream.reset();\n    };\n    /**\n      * Convenience method to clear all captions flushed from the\n      * CaptionStream and still being parsed\n      * @see m2ts/caption-stream.js\n     **/\n\n\n    this.clearAllCaptions = function () {\n      this.clearParsedCaptions();\n      this.resetCaptionStream();\n    };\n    /**\n      * Reset caption parser\n     **/\n\n\n    this.reset = function () {\n      segmentCache = [];\n      trackId = null;\n      timescale = null;\n\n      if (!parsedCaptions) {\n        parsedCaptions = {\n          captions: [],\n          // CC1, CC2, CC3, CC4\n          captionStreams: {},\n          logs: []\n        };\n      } else {\n        this.clearParsedCaptions();\n      }\n\n      this.resetCaptionStream();\n    };\n\n    this.reset();\n  };\n\n  var captionParser = CaptionParser;\n  var toUnsigned = bin.toUnsigned;\n  var toHexString = bin.toHexString;\n  var timescale, startTime, compositionStartTime, getVideoTrackIds, getTracks, getTimescaleFromMediaHeader;\n  /**\n   * Parses an MP4 initialization segment and extracts the timescale\n   * values for any declared tracks. Timescale values indicate the\n   * number of clock ticks per second to assume for time-based values\n   * elsewhere in the MP4.\n   *\n   * To determine the start time of an MP4, you need two pieces of\n   * information: the timescale unit and the earliest base media decode\n   * time. Multiple timescales can be specified within an MP4 but the\n   * base media decode time is always expressed in the timescale from\n   * the media header box for the track:\n   * ```\n   * moov > trak > mdia > mdhd.timescale\n   * ```\n   * @param init {Uint8Array} the bytes of the init segment\n   * @return {object} a hash of track ids to timescale values or null if\n   * the init segment is malformed.\n   */\n\n  timescale = function timescale(init) {\n    var result = {},\n        traks = findBox_1(init, ['moov', 'trak']); // mdhd timescale\n\n    return traks.reduce(function (result, trak) {\n      var tkhd, version, index, id, mdhd;\n      tkhd = findBox_1(trak, ['tkhd'])[0];\n\n      if (!tkhd) {\n        return null;\n      }\n\n      version = tkhd[0];\n      index = version === 0 ? 12 : 20;\n      id = toUnsigned(tkhd[index] << 24 | tkhd[index + 1] << 16 | tkhd[index + 2] << 8 | tkhd[index + 3]);\n      mdhd = findBox_1(trak, ['mdia', 'mdhd'])[0];\n\n      if (!mdhd) {\n        return null;\n      }\n\n      version = mdhd[0];\n      index = version === 0 ? 12 : 20;\n      result[id] = toUnsigned(mdhd[index] << 24 | mdhd[index + 1] << 16 | mdhd[index + 2] << 8 | mdhd[index + 3]);\n      return result;\n    }, result);\n  };\n  /**\n   * Determine the base media decode start time, in seconds, for an MP4\n   * fragment. If multiple fragments are specified, the earliest time is\n   * returned.\n   *\n   * The base media decode time can be parsed from track fragment\n   * metadata:\n   * ```\n   * moof > traf > tfdt.baseMediaDecodeTime\n   * ```\n   * It requires the timescale value from the mdhd to interpret.\n   *\n   * @param timescale {object} a hash of track ids to timescale values.\n   * @return {number} the earliest base media decode start time for the\n   * fragment, in seconds\n   */\n\n\n  startTime = function startTime(timescale, fragment) {\n    var trafs, baseTimes, result; // we need info from two childrend of each track fragment box\n\n    trafs = findBox_1(fragment, ['moof', 'traf']); // determine the start times for each track\n\n    baseTimes = [].concat.apply([], trafs.map(function (traf) {\n      return findBox_1(traf, ['tfhd']).map(function (tfhd) {\n        var id, scale, baseTime; // get the track id from the tfhd\n\n        id = toUnsigned(tfhd[4] << 24 | tfhd[5] << 16 | tfhd[6] << 8 | tfhd[7]); // assume a 90kHz clock if no timescale was specified\n\n        scale = timescale[id] || 90e3; // get the base media decode time from the tfdt\n\n        baseTime = findBox_1(traf, ['tfdt']).map(function (tfdt) {\n          var version, result;\n          version = tfdt[0];\n          result = toUnsigned(tfdt[4] << 24 | tfdt[5] << 16 | tfdt[6] << 8 | tfdt[7]);\n\n          if (version === 1) {\n            result *= Math.pow(2, 32);\n            result += toUnsigned(tfdt[8] << 24 | tfdt[9] << 16 | tfdt[10] << 8 | tfdt[11]);\n          }\n\n          return result;\n        })[0];\n        baseTime = typeof baseTime === 'number' && !isNaN(baseTime) ? baseTime : Infinity; // convert base time to seconds\n\n        return baseTime / scale;\n      });\n    })); // return the minimum\n\n    result = Math.min.apply(null, baseTimes);\n    return isFinite(result) ? result : 0;\n  };\n  /**\n   * Determine the composition start, in seconds, for an MP4\n   * fragment.\n   *\n   * The composition start time of a fragment can be calculated using the base\n   * media decode time, composition time offset, and timescale, as follows:\n   *\n   * compositionStartTime = (baseMediaDecodeTime + compositionTimeOffset) / timescale\n   *\n   * All of the aforementioned information is contained within a media fragment's\n   * `traf` box, except for timescale info, which comes from the initialization\n   * segment, so a track id (also contained within a `traf`) is also necessary to\n   * associate it with a timescale\n   *\n   *\n   * @param timescales {object} - a hash of track ids to timescale values.\n   * @param fragment {Unit8Array} - the bytes of a media segment\n   * @return {number} the composition start time for the fragment, in seconds\n   **/\n\n\n  compositionStartTime = function compositionStartTime(timescales, fragment) {\n    var trafBoxes = findBox_1(fragment, ['moof', 'traf']);\n    var baseMediaDecodeTime = 0;\n    var compositionTimeOffset = 0;\n    var trackId;\n\n    if (trafBoxes && trafBoxes.length) {\n      // The spec states that track run samples contained within a `traf` box are contiguous, but\n      // it does not explicitly state whether the `traf` boxes themselves are contiguous.\n      // We will assume that they are, so we only need the first to calculate start time.\n      var tfhd = findBox_1(trafBoxes[0], ['tfhd'])[0];\n      var trun = findBox_1(trafBoxes[0], ['trun'])[0];\n      var tfdt = findBox_1(trafBoxes[0], ['tfdt'])[0];\n\n      if (tfhd) {\n        var parsedTfhd = parseTfhd(tfhd);\n        trackId = parsedTfhd.trackId;\n      }\n\n      if (tfdt) {\n        var parsedTfdt = parseTfdt(tfdt);\n        baseMediaDecodeTime = parsedTfdt.baseMediaDecodeTime;\n      }\n\n      if (trun) {\n        var parsedTrun = parseTrun(trun);\n\n        if (parsedTrun.samples && parsedTrun.samples.length) {\n          compositionTimeOffset = parsedTrun.samples[0].compositionTimeOffset || 0;\n        }\n      }\n    } // Get timescale for this specific track. Assume a 90kHz clock if no timescale was\n    // specified.\n\n\n    var timescale = timescales[trackId] || 90e3; // return the composition start time, in seconds\n\n    return (baseMediaDecodeTime + compositionTimeOffset) / timescale;\n  };\n  /**\n    * Find the trackIds of the video tracks in this source.\n    * Found by parsing the Handler Reference and Track Header Boxes:\n    *   moov > trak > mdia > hdlr\n    *   moov > trak > tkhd\n    *\n    * @param {Uint8Array} init - The bytes of the init segment for this source\n    * @return {Number[]} A list of trackIds\n    *\n    * @see ISO-BMFF-12/2015, Section 8.4.3\n   **/\n\n\n  getVideoTrackIds = function getVideoTrackIds(init) {\n    var traks = findBox_1(init, ['moov', 'trak']);\n    var videoTrackIds = [];\n    traks.forEach(function (trak) {\n      var hdlrs = findBox_1(trak, ['mdia', 'hdlr']);\n      var tkhds = findBox_1(trak, ['tkhd']);\n      hdlrs.forEach(function (hdlr, index) {\n        var handlerType = parseType_1(hdlr.subarray(8, 12));\n        var tkhd = tkhds[index];\n        var view;\n        var version;\n        var trackId;\n\n        if (handlerType === 'vide') {\n          view = new DataView(tkhd.buffer, tkhd.byteOffset, tkhd.byteLength);\n          version = view.getUint8(0);\n          trackId = version === 0 ? view.getUint32(12) : view.getUint32(20);\n          videoTrackIds.push(trackId);\n        }\n      });\n    });\n    return videoTrackIds;\n  };\n\n  getTimescaleFromMediaHeader = function getTimescaleFromMediaHeader(mdhd) {\n    // mdhd is a FullBox, meaning it will have its own version as the first byte\n    var version = mdhd[0];\n    var index = version === 0 ? 12 : 20;\n    return toUnsigned(mdhd[index] << 24 | mdhd[index + 1] << 16 | mdhd[index + 2] << 8 | mdhd[index + 3]);\n  };\n  /**\n   * Get all the video, audio, and hint tracks from a non fragmented\n   * mp4 segment\n   */\n\n\n  getTracks = function getTracks(init) {\n    var traks = findBox_1(init, ['moov', 'trak']);\n    var tracks = [];\n    traks.forEach(function (trak) {\n      var track = {};\n      var tkhd = findBox_1(trak, ['tkhd'])[0];\n      var view, tkhdVersion; // id\n\n      if (tkhd) {\n        view = new DataView(tkhd.buffer, tkhd.byteOffset, tkhd.byteLength);\n        tkhdVersion = view.getUint8(0);\n        track.id = tkhdVersion === 0 ? view.getUint32(12) : view.getUint32(20);\n      }\n\n      var hdlr = findBox_1(trak, ['mdia', 'hdlr'])[0]; // type\n\n      if (hdlr) {\n        var type = parseType_1(hdlr.subarray(8, 12));\n\n        if (type === 'vide') {\n          track.type = 'video';\n        } else if (type === 'soun') {\n          track.type = 'audio';\n        } else {\n          track.type = type;\n        }\n      } // codec\n\n\n      var stsd = findBox_1(trak, ['mdia', 'minf', 'stbl', 'stsd'])[0];\n\n      if (stsd) {\n        var sampleDescriptions = stsd.subarray(8); // gives the codec type string\n\n        track.codec = parseType_1(sampleDescriptions.subarray(4, 8));\n        var codecBox = findBox_1(sampleDescriptions, [track.codec])[0];\n        var codecConfig, codecConfigType;\n\n        if (codecBox) {\n          // https://tools.ietf.org/html/rfc6381#section-3.3\n          if (/^[a-z]vc[1-9]$/i.test(track.codec)) {\n            // we don't need anything but the \"config\" parameter of the\n            // avc1 codecBox\n            codecConfig = codecBox.subarray(78);\n            codecConfigType = parseType_1(codecConfig.subarray(4, 8));\n\n            if (codecConfigType === 'avcC' && codecConfig.length > 11) {\n              track.codec += '.'; // left padded with zeroes for single digit hex\n              // profile idc\n\n              track.codec += toHexString(codecConfig[9]); // the byte containing the constraint_set flags\n\n              track.codec += toHexString(codecConfig[10]); // level idc\n\n              track.codec += toHexString(codecConfig[11]);\n            } else {\n              // TODO: show a warning that we couldn't parse the codec\n              // and are using the default\n              track.codec = 'avc1.4d400d';\n            }\n          } else if (/^mp4[a,v]$/i.test(track.codec)) {\n            // we do not need anything but the streamDescriptor of the mp4a codecBox\n            codecConfig = codecBox.subarray(28);\n            codecConfigType = parseType_1(codecConfig.subarray(4, 8));\n\n            if (codecConfigType === 'esds' && codecConfig.length > 20 && codecConfig[19] !== 0) {\n              track.codec += '.' + toHexString(codecConfig[19]); // this value is only a single digit\n\n              track.codec += '.' + toHexString(codecConfig[20] >>> 2 & 0x3f).replace(/^0/, '');\n            } else {\n              // TODO: show a warning that we couldn't parse the codec\n              // and are using the default\n              track.codec = 'mp4a.40.2';\n            }\n          } else {\n            // flac, opus, etc\n            track.codec = track.codec.toLowerCase();\n          }\n        }\n      }\n\n      var mdhd = findBox_1(trak, ['mdia', 'mdhd'])[0];\n\n      if (mdhd) {\n        track.timescale = getTimescaleFromMediaHeader(mdhd);\n      }\n\n      tracks.push(track);\n    });\n    return tracks;\n  };\n\n  var probe$2 = {\n    // export mp4 inspector's findBox and parseType for backwards compatibility\n    findBox: findBox_1,\n    parseType: parseType_1,\n    timescale: timescale,\n    startTime: startTime,\n    compositionStartTime: compositionStartTime,\n    videoTrackIds: getVideoTrackIds,\n    tracks: getTracks,\n    getTimescaleFromMediaHeader: getTimescaleFromMediaHeader\n  };\n\n  var parsePid = function parsePid(packet) {\n    var pid = packet[1] & 0x1f;\n    pid <<= 8;\n    pid |= packet[2];\n    return pid;\n  };\n\n  var parsePayloadUnitStartIndicator = function parsePayloadUnitStartIndicator(packet) {\n    return !!(packet[1] & 0x40);\n  };\n\n  var parseAdaptionField = function parseAdaptionField(packet) {\n    var offset = 0; // if an adaption field is present, its length is specified by the\n    // fifth byte of the TS packet header. The adaptation field is\n    // used to add stuffing to PES packets that don't fill a complete\n    // TS packet, and to specify some forms of timing and control data\n    // that we do not currently use.\n\n    if ((packet[3] & 0x30) >>> 4 > 0x01) {\n      offset += packet[4] + 1;\n    }\n\n    return offset;\n  };\n\n  var parseType = function parseType(packet, pmtPid) {\n    var pid = parsePid(packet);\n\n    if (pid === 0) {\n      return 'pat';\n    } else if (pid === pmtPid) {\n      return 'pmt';\n    } else if (pmtPid) {\n      return 'pes';\n    }\n\n    return null;\n  };\n\n  var parsePat = function parsePat(packet) {\n    var pusi = parsePayloadUnitStartIndicator(packet);\n    var offset = 4 + parseAdaptionField(packet);\n\n    if (pusi) {\n      offset += packet[offset] + 1;\n    }\n\n    return (packet[offset + 10] & 0x1f) << 8 | packet[offset + 11];\n  };\n\n  var parsePmt = function parsePmt(packet) {\n    var programMapTable = {};\n    var pusi = parsePayloadUnitStartIndicator(packet);\n    var payloadOffset = 4 + parseAdaptionField(packet);\n\n    if (pusi) {\n      payloadOffset += packet[payloadOffset] + 1;\n    } // PMTs can be sent ahead of the time when they should actually\n    // take effect. We don't believe this should ever be the case\n    // for HLS but we'll ignore \"forward\" PMT declarations if we see\n    // them. Future PMT declarations have the current_next_indicator\n    // set to zero.\n\n\n    if (!(packet[payloadOffset + 5] & 0x01)) {\n      return;\n    }\n\n    var sectionLength, tableEnd, programInfoLength; // the mapping table ends at the end of the current section\n\n    sectionLength = (packet[payloadOffset + 1] & 0x0f) << 8 | packet[payloadOffset + 2];\n    tableEnd = 3 + sectionLength - 4; // to determine where the table is, we have to figure out how\n    // long the program info descriptors are\n\n    programInfoLength = (packet[payloadOffset + 10] & 0x0f) << 8 | packet[payloadOffset + 11]; // advance the offset to the first entry in the mapping table\n\n    var offset = 12 + programInfoLength;\n\n    while (offset < tableEnd) {\n      var i = payloadOffset + offset; // add an entry that maps the elementary_pid to the stream_type\n\n      programMapTable[(packet[i + 1] & 0x1F) << 8 | packet[i + 2]] = packet[i]; // move to the next table entry\n      // skip past the elementary stream descriptors, if present\n\n      offset += ((packet[i + 3] & 0x0F) << 8 | packet[i + 4]) + 5;\n    }\n\n    return programMapTable;\n  };\n\n  var parsePesType = function parsePesType(packet, programMapTable) {\n    var pid = parsePid(packet);\n    var type = programMapTable[pid];\n\n    switch (type) {\n      case streamTypes.H264_STREAM_TYPE:\n        return 'video';\n\n      case streamTypes.ADTS_STREAM_TYPE:\n        return 'audio';\n\n      case streamTypes.METADATA_STREAM_TYPE:\n        return 'timed-metadata';\n\n      default:\n        return null;\n    }\n  };\n\n  var parsePesTime = function parsePesTime(packet) {\n    var pusi = parsePayloadUnitStartIndicator(packet);\n\n    if (!pusi) {\n      return null;\n    }\n\n    var offset = 4 + parseAdaptionField(packet);\n\n    if (offset >= packet.byteLength) {\n      // From the H 222.0 MPEG-TS spec\n      // \"For transport stream packets carrying PES packets, stuffing is needed when there\n      //  is insufficient PES packet data to completely fill the transport stream packet\n      //  payload bytes. Stuffing is accomplished by defining an adaptation field longer than\n      //  the sum of the lengths of the data elements in it, so that the payload bytes\n      //  remaining after the adaptation field exactly accommodates the available PES packet\n      //  data.\"\n      //\n      // If the offset is >= the length of the packet, then the packet contains no data\n      // and instead is just adaption field stuffing bytes\n      return null;\n    }\n\n    var pes = null;\n    var ptsDtsFlags; // PES packets may be annotated with a PTS value, or a PTS value\n    // and a DTS value. Determine what combination of values is\n    // available to work with.\n\n    ptsDtsFlags = packet[offset + 7]; // PTS and DTS are normally stored as a 33-bit number.  Javascript\n    // performs all bitwise operations on 32-bit integers but javascript\n    // supports a much greater range (52-bits) of integer using standard\n    // mathematical operations.\n    // We construct a 31-bit value using bitwise operators over the 31\n    // most significant bits and then multiply by 4 (equal to a left-shift\n    // of 2) before we add the final 2 least significant bits of the\n    // timestamp (equal to an OR.)\n\n    if (ptsDtsFlags & 0xC0) {\n      pes = {}; // the PTS and DTS are not written out directly. For information\n      // on how they are encoded, see\n      // http://dvd.sourceforge.net/dvdinfo/pes-hdr.html\n\n      pes.pts = (packet[offset + 9] & 0x0E) << 27 | (packet[offset + 10] & 0xFF) << 20 | (packet[offset + 11] & 0xFE) << 12 | (packet[offset + 12] & 0xFF) << 5 | (packet[offset + 13] & 0xFE) >>> 3;\n      pes.pts *= 4; // Left shift by 2\n\n      pes.pts += (packet[offset + 13] & 0x06) >>> 1; // OR by the two LSBs\n\n      pes.dts = pes.pts;\n\n      if (ptsDtsFlags & 0x40) {\n        pes.dts = (packet[offset + 14] & 0x0E) << 27 | (packet[offset + 15] & 0xFF) << 20 | (packet[offset + 16] & 0xFE) << 12 | (packet[offset + 17] & 0xFF) << 5 | (packet[offset + 18] & 0xFE) >>> 3;\n        pes.dts *= 4; // Left shift by 2\n\n        pes.dts += (packet[offset + 18] & 0x06) >>> 1; // OR by the two LSBs\n      }\n    }\n\n    return pes;\n  };\n\n  var parseNalUnitType = function parseNalUnitType(type) {\n    switch (type) {\n      case 0x05:\n        return 'slice_layer_without_partitioning_rbsp_idr';\n\n      case 0x06:\n        return 'sei_rbsp';\n\n      case 0x07:\n        return 'seq_parameter_set_rbsp';\n\n      case 0x08:\n        return 'pic_parameter_set_rbsp';\n\n      case 0x09:\n        return 'access_unit_delimiter_rbsp';\n\n      default:\n        return null;\n    }\n  };\n\n  var videoPacketContainsKeyFrame = function videoPacketContainsKeyFrame(packet) {\n    var offset = 4 + parseAdaptionField(packet);\n    var frameBuffer = packet.subarray(offset);\n    var frameI = 0;\n    var frameSyncPoint = 0;\n    var foundKeyFrame = false;\n    var nalType; // advance the sync point to a NAL start, if necessary\n\n    for (; frameSyncPoint < frameBuffer.byteLength - 3; frameSyncPoint++) {\n      if (frameBuffer[frameSyncPoint + 2] === 1) {\n        // the sync point is properly aligned\n        frameI = frameSyncPoint + 5;\n        break;\n      }\n    }\n\n    while (frameI < frameBuffer.byteLength) {\n      // look at the current byte to determine if we've hit the end of\n      // a NAL unit boundary\n      switch (frameBuffer[frameI]) {\n        case 0:\n          // skip past non-sync sequences\n          if (frameBuffer[frameI - 1] !== 0) {\n            frameI += 2;\n            break;\n          } else if (frameBuffer[frameI - 2] !== 0) {\n            frameI++;\n            break;\n          }\n\n          if (frameSyncPoint + 3 !== frameI - 2) {\n            nalType = parseNalUnitType(frameBuffer[frameSyncPoint + 3] & 0x1f);\n\n            if (nalType === 'slice_layer_without_partitioning_rbsp_idr') {\n              foundKeyFrame = true;\n            }\n          } // drop trailing zeroes\n\n\n          do {\n            frameI++;\n          } while (frameBuffer[frameI] !== 1 && frameI < frameBuffer.length);\n\n          frameSyncPoint = frameI - 2;\n          frameI += 3;\n          break;\n\n        case 1:\n          // skip past non-sync sequences\n          if (frameBuffer[frameI - 1] !== 0 || frameBuffer[frameI - 2] !== 0) {\n            frameI += 3;\n            break;\n          }\n\n          nalType = parseNalUnitType(frameBuffer[frameSyncPoint + 3] & 0x1f);\n\n          if (nalType === 'slice_layer_without_partitioning_rbsp_idr') {\n            foundKeyFrame = true;\n          }\n\n          frameSyncPoint = frameI - 2;\n          frameI += 3;\n          break;\n\n        default:\n          // the current byte isn't a one or zero, so it cannot be part\n          // of a sync sequence\n          frameI += 3;\n          break;\n      }\n    }\n\n    frameBuffer = frameBuffer.subarray(frameSyncPoint);\n    frameI -= frameSyncPoint;\n    frameSyncPoint = 0; // parse the final nal\n\n    if (frameBuffer && frameBuffer.byteLength > 3) {\n      nalType = parseNalUnitType(frameBuffer[frameSyncPoint + 3] & 0x1f);\n\n      if (nalType === 'slice_layer_without_partitioning_rbsp_idr') {\n        foundKeyFrame = true;\n      }\n    }\n\n    return foundKeyFrame;\n  };\n\n  var probe$1 = {\n    parseType: parseType,\n    parsePat: parsePat,\n    parsePmt: parsePmt,\n    parsePayloadUnitStartIndicator: parsePayloadUnitStartIndicator,\n    parsePesType: parsePesType,\n    parsePesTime: parsePesTime,\n    videoPacketContainsKeyFrame: videoPacketContainsKeyFrame\n  };\n  var handleRollover = timestampRolloverStream.handleRollover;\n  var probe = {};\n  probe.ts = probe$1;\n  probe.aac = utils;\n  var ONE_SECOND_IN_TS = clock.ONE_SECOND_IN_TS;\n  var MP2T_PACKET_LENGTH = 188,\n      // bytes\n  SYNC_BYTE = 0x47;\n  /**\n   * walks through segment data looking for pat and pmt packets to parse out\n   * program map table information\n   */\n\n  var parsePsi_ = function parsePsi_(bytes, pmt) {\n    var startIndex = 0,\n        endIndex = MP2T_PACKET_LENGTH,\n        packet,\n        type;\n\n    while (endIndex < bytes.byteLength) {\n      // Look for a pair of start and end sync bytes in the data..\n      if (bytes[startIndex] === SYNC_BYTE && bytes[endIndex] === SYNC_BYTE) {\n        // We found a packet\n        packet = bytes.subarray(startIndex, endIndex);\n        type = probe.ts.parseType(packet, pmt.pid);\n\n        switch (type) {\n          case 'pat':\n            pmt.pid = probe.ts.parsePat(packet);\n            break;\n\n          case 'pmt':\n            var table = probe.ts.parsePmt(packet);\n            pmt.table = pmt.table || {};\n            Object.keys(table).forEach(function (key) {\n              pmt.table[key] = table[key];\n            });\n            break;\n        }\n\n        startIndex += MP2T_PACKET_LENGTH;\n        endIndex += MP2T_PACKET_LENGTH;\n        continue;\n      } // If we get here, we have somehow become de-synchronized and we need to step\n      // forward one byte at a time until we find a pair of sync bytes that denote\n      // a packet\n\n\n      startIndex++;\n      endIndex++;\n    }\n  };\n  /**\n   * walks through the segment data from the start and end to get timing information\n   * for the first and last audio pes packets\n   */\n\n\n  var parseAudioPes_ = function parseAudioPes_(bytes, pmt, result) {\n    var startIndex = 0,\n        endIndex = MP2T_PACKET_LENGTH,\n        packet,\n        type,\n        pesType,\n        pusi,\n        parsed;\n    var endLoop = false; // Start walking from start of segment to get first audio packet\n\n    while (endIndex <= bytes.byteLength) {\n      // Look for a pair of start and end sync bytes in the data..\n      if (bytes[startIndex] === SYNC_BYTE && (bytes[endIndex] === SYNC_BYTE || endIndex === bytes.byteLength)) {\n        // We found a packet\n        packet = bytes.subarray(startIndex, endIndex);\n        type = probe.ts.parseType(packet, pmt.pid);\n\n        switch (type) {\n          case 'pes':\n            pesType = probe.ts.parsePesType(packet, pmt.table);\n            pusi = probe.ts.parsePayloadUnitStartIndicator(packet);\n\n            if (pesType === 'audio' && pusi) {\n              parsed = probe.ts.parsePesTime(packet);\n\n              if (parsed) {\n                parsed.type = 'audio';\n                result.audio.push(parsed);\n                endLoop = true;\n              }\n            }\n\n            break;\n        }\n\n        if (endLoop) {\n          break;\n        }\n\n        startIndex += MP2T_PACKET_LENGTH;\n        endIndex += MP2T_PACKET_LENGTH;\n        continue;\n      } // If we get here, we have somehow become de-synchronized and we need to step\n      // forward one byte at a time until we find a pair of sync bytes that denote\n      // a packet\n\n\n      startIndex++;\n      endIndex++;\n    } // Start walking from end of segment to get last audio packet\n\n\n    endIndex = bytes.byteLength;\n    startIndex = endIndex - MP2T_PACKET_LENGTH;\n    endLoop = false;\n\n    while (startIndex >= 0) {\n      // Look for a pair of start and end sync bytes in the data..\n      if (bytes[startIndex] === SYNC_BYTE && (bytes[endIndex] === SYNC_BYTE || endIndex === bytes.byteLength)) {\n        // We found a packet\n        packet = bytes.subarray(startIndex, endIndex);\n        type = probe.ts.parseType(packet, pmt.pid);\n\n        switch (type) {\n          case 'pes':\n            pesType = probe.ts.parsePesType(packet, pmt.table);\n            pusi = probe.ts.parsePayloadUnitStartIndicator(packet);\n\n            if (pesType === 'audio' && pusi) {\n              parsed = probe.ts.parsePesTime(packet);\n\n              if (parsed) {\n                parsed.type = 'audio';\n                result.audio.push(parsed);\n                endLoop = true;\n              }\n            }\n\n            break;\n        }\n\n        if (endLoop) {\n          break;\n        }\n\n        startIndex -= MP2T_PACKET_LENGTH;\n        endIndex -= MP2T_PACKET_LENGTH;\n        continue;\n      } // If we get here, we have somehow become de-synchronized and we need to step\n      // forward one byte at a time until we find a pair of sync bytes that denote\n      // a packet\n\n\n      startIndex--;\n      endIndex--;\n    }\n  };\n  /**\n   * walks through the segment data from the start and end to get timing information\n   * for the first and last video pes packets as well as timing information for the first\n   * key frame.\n   */\n\n\n  var parseVideoPes_ = function parseVideoPes_(bytes, pmt, result) {\n    var startIndex = 0,\n        endIndex = MP2T_PACKET_LENGTH,\n        packet,\n        type,\n        pesType,\n        pusi,\n        parsed,\n        frame,\n        i,\n        pes;\n    var endLoop = false;\n    var currentFrame = {\n      data: [],\n      size: 0\n    }; // Start walking from start of segment to get first video packet\n\n    while (endIndex < bytes.byteLength) {\n      // Look for a pair of start and end sync bytes in the data..\n      if (bytes[startIndex] === SYNC_BYTE && bytes[endIndex] === SYNC_BYTE) {\n        // We found a packet\n        packet = bytes.subarray(startIndex, endIndex);\n        type = probe.ts.parseType(packet, pmt.pid);\n\n        switch (type) {\n          case 'pes':\n            pesType = probe.ts.parsePesType(packet, pmt.table);\n            pusi = probe.ts.parsePayloadUnitStartIndicator(packet);\n\n            if (pesType === 'video') {\n              if (pusi && !endLoop) {\n                parsed = probe.ts.parsePesTime(packet);\n\n                if (parsed) {\n                  parsed.type = 'video';\n                  result.video.push(parsed);\n                  endLoop = true;\n                }\n              }\n\n              if (!result.firstKeyFrame) {\n                if (pusi) {\n                  if (currentFrame.size !== 0) {\n                    frame = new Uint8Array(currentFrame.size);\n                    i = 0;\n\n                    while (currentFrame.data.length) {\n                      pes = currentFrame.data.shift();\n                      frame.set(pes, i);\n                      i += pes.byteLength;\n                    }\n\n                    if (probe.ts.videoPacketContainsKeyFrame(frame)) {\n                      var firstKeyFrame = probe.ts.parsePesTime(frame); // PTS/DTS may not be available. Simply *not* setting\n                      // the keyframe seems to work fine with HLS playback\n                      // and definitely preferable to a crash with TypeError...\n\n                      if (firstKeyFrame) {\n                        result.firstKeyFrame = firstKeyFrame;\n                        result.firstKeyFrame.type = 'video';\n                      } else {\n                        // eslint-disable-next-line\n                        console.warn('Failed to extract PTS/DTS from PES at first keyframe. ' + 'This could be an unusual TS segment, or else mux.js did not ' + 'parse your TS segment correctly. If you know your TS ' + 'segments do contain PTS/DTS on keyframes please file a bug ' + 'report! You can try ffprobe to double check for yourself.');\n                      }\n                    }\n\n                    currentFrame.size = 0;\n                  }\n                }\n\n                currentFrame.data.push(packet);\n                currentFrame.size += packet.byteLength;\n              }\n            }\n\n            break;\n        }\n\n        if (endLoop && result.firstKeyFrame) {\n          break;\n        }\n\n        startIndex += MP2T_PACKET_LENGTH;\n        endIndex += MP2T_PACKET_LENGTH;\n        continue;\n      } // If we get here, we have somehow become de-synchronized and we need to step\n      // forward one byte at a time until we find a pair of sync bytes that denote\n      // a packet\n\n\n      startIndex++;\n      endIndex++;\n    } // Start walking from end of segment to get last video packet\n\n\n    endIndex = bytes.byteLength;\n    startIndex = endIndex - MP2T_PACKET_LENGTH;\n    endLoop = false;\n\n    while (startIndex >= 0) {\n      // Look for a pair of start and end sync bytes in the data..\n      if (bytes[startIndex] === SYNC_BYTE && bytes[endIndex] === SYNC_BYTE) {\n        // We found a packet\n        packet = bytes.subarray(startIndex, endIndex);\n        type = probe.ts.parseType(packet, pmt.pid);\n\n        switch (type) {\n          case 'pes':\n            pesType = probe.ts.parsePesType(packet, pmt.table);\n            pusi = probe.ts.parsePayloadUnitStartIndicator(packet);\n\n            if (pesType === 'video' && pusi) {\n              parsed = probe.ts.parsePesTime(packet);\n\n              if (parsed) {\n                parsed.type = 'video';\n                result.video.push(parsed);\n                endLoop = true;\n              }\n            }\n\n            break;\n        }\n\n        if (endLoop) {\n          break;\n        }\n\n        startIndex -= MP2T_PACKET_LENGTH;\n        endIndex -= MP2T_PACKET_LENGTH;\n        continue;\n      } // If we get here, we have somehow become de-synchronized and we need to step\n      // forward one byte at a time until we find a pair of sync bytes that denote\n      // a packet\n\n\n      startIndex--;\n      endIndex--;\n    }\n  };\n  /**\n   * Adjusts the timestamp information for the segment to account for\n   * rollover and convert to seconds based on pes packet timescale (90khz clock)\n   */\n\n\n  var adjustTimestamp_ = function adjustTimestamp_(segmentInfo, baseTimestamp) {\n    if (segmentInfo.audio && segmentInfo.audio.length) {\n      var audioBaseTimestamp = baseTimestamp;\n\n      if (typeof audioBaseTimestamp === 'undefined' || isNaN(audioBaseTimestamp)) {\n        audioBaseTimestamp = segmentInfo.audio[0].dts;\n      }\n\n      segmentInfo.audio.forEach(function (info) {\n        info.dts = handleRollover(info.dts, audioBaseTimestamp);\n        info.pts = handleRollover(info.pts, audioBaseTimestamp); // time in seconds\n\n        info.dtsTime = info.dts / ONE_SECOND_IN_TS;\n        info.ptsTime = info.pts / ONE_SECOND_IN_TS;\n      });\n    }\n\n    if (segmentInfo.video && segmentInfo.video.length) {\n      var videoBaseTimestamp = baseTimestamp;\n\n      if (typeof videoBaseTimestamp === 'undefined' || isNaN(videoBaseTimestamp)) {\n        videoBaseTimestamp = segmentInfo.video[0].dts;\n      }\n\n      segmentInfo.video.forEach(function (info) {\n        info.dts = handleRollover(info.dts, videoBaseTimestamp);\n        info.pts = handleRollover(info.pts, videoBaseTimestamp); // time in seconds\n\n        info.dtsTime = info.dts / ONE_SECOND_IN_TS;\n        info.ptsTime = info.pts / ONE_SECOND_IN_TS;\n      });\n\n      if (segmentInfo.firstKeyFrame) {\n        var frame = segmentInfo.firstKeyFrame;\n        frame.dts = handleRollover(frame.dts, videoBaseTimestamp);\n        frame.pts = handleRollover(frame.pts, videoBaseTimestamp); // time in seconds\n\n        frame.dtsTime = frame.dts / ONE_SECOND_IN_TS;\n        frame.ptsTime = frame.pts / ONE_SECOND_IN_TS;\n      }\n    }\n  };\n  /**\n   * inspects the aac data stream for start and end time information\n   */\n\n\n  var inspectAac_ = function inspectAac_(bytes) {\n    var endLoop = false,\n        audioCount = 0,\n        sampleRate = null,\n        timestamp = null,\n        frameSize = 0,\n        byteIndex = 0,\n        packet;\n\n    while (bytes.length - byteIndex >= 3) {\n      var type = probe.aac.parseType(bytes, byteIndex);\n\n      switch (type) {\n        case 'timed-metadata':\n          // Exit early because we don't have enough to parse\n          // the ID3 tag header\n          if (bytes.length - byteIndex < 10) {\n            endLoop = true;\n            break;\n          }\n\n          frameSize = probe.aac.parseId3TagSize(bytes, byteIndex); // Exit early if we don't have enough in the buffer\n          // to emit a full packet\n\n          if (frameSize > bytes.length) {\n            endLoop = true;\n            break;\n          }\n\n          if (timestamp === null) {\n            packet = bytes.subarray(byteIndex, byteIndex + frameSize);\n            timestamp = probe.aac.parseAacTimestamp(packet);\n          }\n\n          byteIndex += frameSize;\n          break;\n\n        case 'audio':\n          // Exit early because we don't have enough to parse\n          // the ADTS frame header\n          if (bytes.length - byteIndex < 7) {\n            endLoop = true;\n            break;\n          }\n\n          frameSize = probe.aac.parseAdtsSize(bytes, byteIndex); // Exit early if we don't have enough in the buffer\n          // to emit a full packet\n\n          if (frameSize > bytes.length) {\n            endLoop = true;\n            break;\n          }\n\n          if (sampleRate === null) {\n            packet = bytes.subarray(byteIndex, byteIndex + frameSize);\n            sampleRate = probe.aac.parseSampleRate(packet);\n          }\n\n          audioCount++;\n          byteIndex += frameSize;\n          break;\n\n        default:\n          byteIndex++;\n          break;\n      }\n\n      if (endLoop) {\n        return null;\n      }\n    }\n\n    if (sampleRate === null || timestamp === null) {\n      return null;\n    }\n\n    var audioTimescale = ONE_SECOND_IN_TS / sampleRate;\n    var result = {\n      audio: [{\n        type: 'audio',\n        dts: timestamp,\n        pts: timestamp\n      }, {\n        type: 'audio',\n        dts: timestamp + audioCount * 1024 * audioTimescale,\n        pts: timestamp + audioCount * 1024 * audioTimescale\n      }]\n    };\n    return result;\n  };\n  /**\n   * inspects the transport stream segment data for start and end time information\n   * of the audio and video tracks (when present) as well as the first key frame's\n   * start time.\n   */\n\n\n  var inspectTs_ = function inspectTs_(bytes) {\n    var pmt = {\n      pid: null,\n      table: null\n    };\n    var result = {};\n    parsePsi_(bytes, pmt);\n\n    for (var pid in pmt.table) {\n      if (pmt.table.hasOwnProperty(pid)) {\n        var type = pmt.table[pid];\n\n        switch (type) {\n          case streamTypes.H264_STREAM_TYPE:\n            result.video = [];\n            parseVideoPes_(bytes, pmt, result);\n\n            if (result.video.length === 0) {\n              delete result.video;\n            }\n\n            break;\n\n          case streamTypes.ADTS_STREAM_TYPE:\n            result.audio = [];\n            parseAudioPes_(bytes, pmt, result);\n\n            if (result.audio.length === 0) {\n              delete result.audio;\n            }\n\n            break;\n        }\n      }\n    }\n\n    return result;\n  };\n  /**\n   * Inspects segment byte data and returns an object with start and end timing information\n   *\n   * @param {Uint8Array} bytes The segment byte data\n   * @param {Number} baseTimestamp Relative reference timestamp used when adjusting frame\n   *  timestamps for rollover. This value must be in 90khz clock.\n   * @return {Object} Object containing start and end frame timing info of segment.\n   */\n\n\n  var inspect = function inspect(bytes, baseTimestamp) {\n    var isAacData = probe.aac.isLikelyAacData(bytes);\n    var result;\n\n    if (isAacData) {\n      result = inspectAac_(bytes);\n    } else {\n      result = inspectTs_(bytes);\n    }\n\n    if (!result || !result.audio && !result.video) {\n      return null;\n    }\n\n    adjustTimestamp_(result, baseTimestamp);\n    return result;\n  };\n\n  var tsInspector = {\n    inspect: inspect,\n    parseAudioPes_: parseAudioPes_\n  };\n  /* global self */\n\n  /**\n   * Re-emits transmuxer events by converting them into messages to the\n   * world outside the worker.\n   *\n   * @param {Object} transmuxer the transmuxer to wire events on\n   * @private\n   */\n\n  var wireTransmuxerEvents = function wireTransmuxerEvents(self, transmuxer) {\n    transmuxer.on('data', function (segment) {\n      // transfer ownership of the underlying ArrayBuffer\n      // instead of doing a copy to save memory\n      // ArrayBuffers are transferable but generic TypedArrays are not\n      // @link https://developer.mozilla.org/en-US/docs/Web/API/Web_Workers_API/Using_web_workers#Passing_data_by_transferring_ownership_(transferable_objects)\n      var initArray = segment.initSegment;\n      segment.initSegment = {\n        data: initArray.buffer,\n        byteOffset: initArray.byteOffset,\n        byteLength: initArray.byteLength\n      };\n      var typedArray = segment.data;\n      segment.data = typedArray.buffer;\n      self.postMessage({\n        action: 'data',\n        segment: segment,\n        byteOffset: typedArray.byteOffset,\n        byteLength: typedArray.byteLength\n      }, [segment.data]);\n    });\n    transmuxer.on('done', function (data) {\n      self.postMessage({\n        action: 'done'\n      });\n    });\n    transmuxer.on('gopInfo', function (gopInfo) {\n      self.postMessage({\n        action: 'gopInfo',\n        gopInfo: gopInfo\n      });\n    });\n    transmuxer.on('videoSegmentTimingInfo', function (timingInfo) {\n      var videoSegmentTimingInfo = {\n        start: {\n          decode: clock.videoTsToSeconds(timingInfo.start.dts),\n          presentation: clock.videoTsToSeconds(timingInfo.start.pts)\n        },\n        end: {\n          decode: clock.videoTsToSeconds(timingInfo.end.dts),\n          presentation: clock.videoTsToSeconds(timingInfo.end.pts)\n        },\n        baseMediaDecodeTime: clock.videoTsToSeconds(timingInfo.baseMediaDecodeTime)\n      };\n\n      if (timingInfo.prependedContentDuration) {\n        videoSegmentTimingInfo.prependedContentDuration = clock.videoTsToSeconds(timingInfo.prependedContentDuration);\n      }\n\n      self.postMessage({\n        action: 'videoSegmentTimingInfo',\n        videoSegmentTimingInfo: videoSegmentTimingInfo\n      });\n    });\n    transmuxer.on('audioSegmentTimingInfo', function (timingInfo) {\n      // Note that all times for [audio/video]SegmentTimingInfo events are in video clock\n      var audioSegmentTimingInfo = {\n        start: {\n          decode: clock.videoTsToSeconds(timingInfo.start.dts),\n          presentation: clock.videoTsToSeconds(timingInfo.start.pts)\n        },\n        end: {\n          decode: clock.videoTsToSeconds(timingInfo.end.dts),\n          presentation: clock.videoTsToSeconds(timingInfo.end.pts)\n        },\n        baseMediaDecodeTime: clock.videoTsToSeconds(timingInfo.baseMediaDecodeTime)\n      };\n\n      if (timingInfo.prependedContentDuration) {\n        audioSegmentTimingInfo.prependedContentDuration = clock.videoTsToSeconds(timingInfo.prependedContentDuration);\n      }\n\n      self.postMessage({\n        action: 'audioSegmentTimingInfo',\n        audioSegmentTimingInfo: audioSegmentTimingInfo\n      });\n    });\n    transmuxer.on('id3Frame', function (id3Frame) {\n      self.postMessage({\n        action: 'id3Frame',\n        id3Frame: id3Frame\n      });\n    });\n    transmuxer.on('caption', function (caption) {\n      self.postMessage({\n        action: 'caption',\n        caption: caption\n      });\n    });\n    transmuxer.on('trackinfo', function (trackInfo) {\n      self.postMessage({\n        action: 'trackinfo',\n        trackInfo: trackInfo\n      });\n    });\n    transmuxer.on('audioTimingInfo', function (audioTimingInfo) {\n      // convert to video TS since we prioritize video time over audio\n      self.postMessage({\n        action: 'audioTimingInfo',\n        audioTimingInfo: {\n          start: clock.videoTsToSeconds(audioTimingInfo.start),\n          end: clock.videoTsToSeconds(audioTimingInfo.end)\n        }\n      });\n    });\n    transmuxer.on('videoTimingInfo', function (videoTimingInfo) {\n      self.postMessage({\n        action: 'videoTimingInfo',\n        videoTimingInfo: {\n          start: clock.videoTsToSeconds(videoTimingInfo.start),\n          end: clock.videoTsToSeconds(videoTimingInfo.end)\n        }\n      });\n    });\n    transmuxer.on('log', function (log) {\n      self.postMessage({\n        action: 'log',\n        log: log\n      });\n    });\n  };\n  /**\n   * All incoming messages route through this hash. If no function exists\n   * to handle an incoming message, then we ignore the message.\n   *\n   * @class MessageHandlers\n   * @param {Object} options the options to initialize with\n   */\n\n\n  var MessageHandlers = /*#__PURE__*/function () {\n    function MessageHandlers(self, options) {\n      this.options = options || {};\n      this.self = self;\n      this.init();\n    }\n    /**\n     * initialize our web worker and wire all the events.\n     */\n\n\n    var _proto = MessageHandlers.prototype;\n\n    _proto.init = function init() {\n      if (this.transmuxer) {\n        this.transmuxer.dispose();\n      }\n\n      this.transmuxer = new transmuxer.Transmuxer(this.options);\n      wireTransmuxerEvents(this.self, this.transmuxer);\n    };\n\n    _proto.pushMp4Captions = function pushMp4Captions(data) {\n      if (!this.captionParser) {\n        this.captionParser = new captionParser();\n        this.captionParser.init();\n      }\n\n      var segment = new Uint8Array(data.data, data.byteOffset, data.byteLength);\n      var parsed = this.captionParser.parse(segment, data.trackIds, data.timescales);\n      this.self.postMessage({\n        action: 'mp4Captions',\n        captions: parsed && parsed.captions || [],\n        logs: parsed && parsed.logs || [],\n        data: segment.buffer\n      }, [segment.buffer]);\n    };\n\n    _proto.probeMp4StartTime = function probeMp4StartTime(_ref) {\n      var timescales = _ref.timescales,\n          data = _ref.data;\n      var startTime = probe$2.startTime(timescales, data);\n      this.self.postMessage({\n        action: 'probeMp4StartTime',\n        startTime: startTime,\n        data: data\n      }, [data.buffer]);\n    };\n\n    _proto.probeMp4Tracks = function probeMp4Tracks(_ref2) {\n      var data = _ref2.data;\n      var tracks = probe$2.tracks(data);\n      this.self.postMessage({\n        action: 'probeMp4Tracks',\n        tracks: tracks,\n        data: data\n      }, [data.buffer]);\n    }\n    /**\n     * Probe an mpeg2-ts segment to determine the start time of the segment in it's\n     * internal \"media time,\" as well as whether it contains video and/or audio.\n     *\n     * @private\n     * @param {Uint8Array} bytes - segment bytes\n     * @param {number} baseStartTime\n     *        Relative reference timestamp used when adjusting frame timestamps for rollover.\n     *        This value should be in seconds, as it's converted to a 90khz clock within the\n     *        function body.\n     * @return {Object} The start time of the current segment in \"media time\" as well as\n     *                  whether it contains video and/or audio\n     */\n    ;\n\n    _proto.probeTs = function probeTs(_ref3) {\n      var data = _ref3.data,\n          baseStartTime = _ref3.baseStartTime;\n      var tsStartTime = typeof baseStartTime === 'number' && !isNaN(baseStartTime) ? baseStartTime * clock.ONE_SECOND_IN_TS : void 0;\n      var timeInfo = tsInspector.inspect(data, tsStartTime);\n      var result = null;\n\n      if (timeInfo) {\n        result = {\n          // each type's time info comes back as an array of 2 times, start and end\n          hasVideo: timeInfo.video && timeInfo.video.length === 2 || false,\n          hasAudio: timeInfo.audio && timeInfo.audio.length === 2 || false\n        };\n\n        if (result.hasVideo) {\n          result.videoStart = timeInfo.video[0].ptsTime;\n        }\n\n        if (result.hasAudio) {\n          result.audioStart = timeInfo.audio[0].ptsTime;\n        }\n      }\n\n      this.self.postMessage({\n        action: 'probeTs',\n        result: result,\n        data: data\n      }, [data.buffer]);\n    };\n\n    _proto.clearAllMp4Captions = function clearAllMp4Captions() {\n      if (this.captionParser) {\n        this.captionParser.clearAllCaptions();\n      }\n    };\n\n    _proto.clearParsedMp4Captions = function clearParsedMp4Captions() {\n      if (this.captionParser) {\n        this.captionParser.clearParsedCaptions();\n      }\n    }\n    /**\n     * Adds data (a ts segment) to the start of the transmuxer pipeline for\n     * processing.\n     *\n     * @param {ArrayBuffer} data data to push into the muxer\n     */\n    ;\n\n    _proto.push = function push(data) {\n      // Cast array buffer to correct type for transmuxer\n      var segment = new Uint8Array(data.data, data.byteOffset, data.byteLength);\n      this.transmuxer.push(segment);\n    }\n    /**\n     * Recreate the transmuxer so that the next segment added via `push`\n     * start with a fresh transmuxer.\n     */\n    ;\n\n    _proto.reset = function reset() {\n      this.transmuxer.reset();\n    }\n    /**\n     * Set the value that will be used as the `baseMediaDecodeTime` time for the\n     * next segment pushed in. Subsequent segments will have their `baseMediaDecodeTime`\n     * set relative to the first based on the PTS values.\n     *\n     * @param {Object} data used to set the timestamp offset in the muxer\n     */\n    ;\n\n    _proto.setTimestampOffset = function setTimestampOffset(data) {\n      var timestampOffset = data.timestampOffset || 0;\n      this.transmuxer.setBaseMediaDecodeTime(Math.round(clock.secondsToVideoTs(timestampOffset)));\n    };\n\n    _proto.setAudioAppendStart = function setAudioAppendStart(data) {\n      this.transmuxer.setAudioAppendStart(Math.ceil(clock.secondsToVideoTs(data.appendStart)));\n    };\n\n    _proto.setRemux = function setRemux(data) {\n      this.transmuxer.setRemux(data.remux);\n    }\n    /**\n     * Forces the pipeline to finish processing the last segment and emit it's\n     * results.\n     *\n     * @param {Object} data event data, not really used\n     */\n    ;\n\n    _proto.flush = function flush(data) {\n      this.transmuxer.flush(); // transmuxed done action is fired after both audio/video pipelines are flushed\n\n      self.postMessage({\n        action: 'done',\n        type: 'transmuxed'\n      });\n    };\n\n    _proto.endTimeline = function endTimeline() {\n      this.transmuxer.endTimeline(); // transmuxed endedtimeline action is fired after both audio/video pipelines end their\n      // timelines\n\n      self.postMessage({\n        action: 'endedtimeline',\n        type: 'transmuxed'\n      });\n    };\n\n    _proto.alignGopsWith = function alignGopsWith(data) {\n      this.transmuxer.alignGopsWith(data.gopsToAlignWith.slice());\n    };\n\n    return MessageHandlers;\n  }();\n  /**\n   * Our web worker interface so that things can talk to mux.js\n   * that will be running in a web worker. the scope is passed to this by\n   * webworkify.\n   *\n   * @param {Object} self the scope for the web worker\n   */\n\n\n  self.onmessage = function (event) {\n    if (event.data.action === 'init' && event.data.options) {\n      this.messageHandlers = new MessageHandlers(self, event.data.options);\n      return;\n    }\n\n    if (!this.messageHandlers) {\n      this.messageHandlers = new MessageHandlers(self);\n    }\n\n    if (event.data && event.data.action && event.data.action !== 'init') {\n      if (this.messageHandlers[event.data.action]) {\n        this.messageHandlers[event.data.action](event.data);\n      }\n    }\n  };\n}));\nvar TransmuxWorker = factory(workerCode$1);\n/* rollup-plugin-worker-factory end for worker!/Users/bcasey/Projects/videojs-http-streaming/src/transmuxer-worker.js */\n\nvar handleData_ = function handleData_(event, transmuxedData, callback) {\n  var _event$data$segment = event.data.segment,\n      type = _event$data$segment.type,\n      initSegment = _event$data$segment.initSegment,\n      captions = _event$data$segment.captions,\n      captionStreams = _event$data$segment.captionStreams,\n      metadata = _event$data$segment.metadata,\n      videoFrameDtsTime = _event$data$segment.videoFrameDtsTime,\n      videoFramePtsTime = _event$data$segment.videoFramePtsTime;\n  transmuxedData.buffer.push({\n    captions: captions,\n    captionStreams: captionStreams,\n    metadata: metadata\n  });\n  var boxes = event.data.segment.boxes || {\n    data: event.data.segment.data\n  };\n  var result = {\n    type: type,\n    // cast ArrayBuffer to TypedArray\n    data: new Uint8Array(boxes.data, boxes.data.byteOffset, boxes.data.byteLength),\n    initSegment: new Uint8Array(initSegment.data, initSegment.byteOffset, initSegment.byteLength)\n  };\n\n  if (typeof videoFrameDtsTime !== 'undefined') {\n    result.videoFrameDtsTime = videoFrameDtsTime;\n  }\n\n  if (typeof videoFramePtsTime !== 'undefined') {\n    result.videoFramePtsTime = videoFramePtsTime;\n  }\n\n  callback(result);\n};\n\nvar handleDone_ = function handleDone_(_ref) {\n  var transmuxedData = _ref.transmuxedData,\n      callback = _ref.callback; // Previously we only returned data on data events,\n  // not on done events. Clear out the buffer to keep that consistent.\n\n  transmuxedData.buffer = []; // all buffers should have been flushed from the muxer, so start processing anything we\n  // have received\n\n  callback(transmuxedData);\n};\n\nvar handleGopInfo_ = function handleGopInfo_(event, transmuxedData) {\n  transmuxedData.gopInfo = event.data.gopInfo;\n};\n\nvar processTransmux = function processTransmux(options) {\n  var transmuxer = options.transmuxer,\n      bytes = options.bytes,\n      audioAppendStart = options.audioAppendStart,\n      gopsToAlignWith = options.gopsToAlignWith,\n      remux = options.remux,\n      onData = options.onData,\n      onTrackInfo = options.onTrackInfo,\n      onAudioTimingInfo = options.onAudioTimingInfo,\n      onVideoTimingInfo = options.onVideoTimingInfo,\n      onVideoSegmentTimingInfo = options.onVideoSegmentTimingInfo,\n      onAudioSegmentTimingInfo = options.onAudioSegmentTimingInfo,\n      onId3 = options.onId3,\n      onCaptions = options.onCaptions,\n      onDone = options.onDone,\n      onEndedTimeline = options.onEndedTimeline,\n      onTransmuxerLog = options.onTransmuxerLog,\n      isEndOfTimeline = options.isEndOfTimeline;\n  var transmuxedData = {\n    buffer: []\n  };\n  var waitForEndedTimelineEvent = isEndOfTimeline;\n\n  var handleMessage = function handleMessage(event) {\n    if (transmuxer.currentTransmux !== options) {\n      // disposed\n      return;\n    }\n\n    if (event.data.action === 'data') {\n      handleData_(event, transmuxedData, onData);\n    }\n\n    if (event.data.action === 'trackinfo') {\n      onTrackInfo(event.data.trackInfo);\n    }\n\n    if (event.data.action === 'gopInfo') {\n      handleGopInfo_(event, transmuxedData);\n    }\n\n    if (event.data.action === 'audioTimingInfo') {\n      onAudioTimingInfo(event.data.audioTimingInfo);\n    }\n\n    if (event.data.action === 'videoTimingInfo') {\n      onVideoTimingInfo(event.data.videoTimingInfo);\n    }\n\n    if (event.data.action === 'videoSegmentTimingInfo') {\n      onVideoSegmentTimingInfo(event.data.videoSegmentTimingInfo);\n    }\n\n    if (event.data.action === 'audioSegmentTimingInfo') {\n      onAudioSegmentTimingInfo(event.data.audioSegmentTimingInfo);\n    }\n\n    if (event.data.action === 'id3Frame') {\n      onId3([event.data.id3Frame], event.data.id3Frame.dispatchType);\n    }\n\n    if (event.data.action === 'caption') {\n      onCaptions(event.data.caption);\n    }\n\n    if (event.data.action === 'endedtimeline') {\n      waitForEndedTimelineEvent = false;\n      onEndedTimeline();\n    }\n\n    if (event.data.action === 'log') {\n      onTransmuxerLog(event.data.log);\n    } // wait for the transmuxed event since we may have audio and video\n\n\n    if (event.data.type !== 'transmuxed') {\n      return;\n    } // If the \"endedtimeline\" event has not yet fired, and this segment represents the end\n    // of a timeline, that means there may still be data events before the segment\n    // processing can be considerred complete. In that case, the final event should be\n    // an \"endedtimeline\" event with the type \"transmuxed.\"\n\n\n    if (waitForEndedTimelineEvent) {\n      return;\n    }\n\n    transmuxer.onmessage = null;\n    handleDone_({\n      transmuxedData: transmuxedData,\n      callback: onDone\n    });\n    /* eslint-disable no-use-before-define */\n\n    dequeue(transmuxer);\n    /* eslint-enable */\n  };\n\n  transmuxer.onmessage = handleMessage;\n\n  if (audioAppendStart) {\n    transmuxer.postMessage({\n      action: 'setAudioAppendStart',\n      appendStart: audioAppendStart\n    });\n  } // allow empty arrays to be passed to clear out GOPs\n\n\n  if (Array.isArray(gopsToAlignWith)) {\n    transmuxer.postMessage({\n      action: 'alignGopsWith',\n      gopsToAlignWith: gopsToAlignWith\n    });\n  }\n\n  if (typeof remux !== 'undefined') {\n    transmuxer.postMessage({\n      action: 'setRemux',\n      remux: remux\n    });\n  }\n\n  if (bytes.byteLength) {\n    var buffer = bytes instanceof ArrayBuffer ? bytes : bytes.buffer;\n    var byteOffset = bytes instanceof ArrayBuffer ? 0 : bytes.byteOffset;\n    transmuxer.postMessage({\n      action: 'push',\n      // Send the typed-array of data as an ArrayBuffer so that\n      // it can be sent as a \"Transferable\" and avoid the costly\n      // memory copy\n      data: buffer,\n      // To recreate the original typed-array, we need information\n      // about what portion of the ArrayBuffer it was a view into\n      byteOffset: byteOffset,\n      byteLength: bytes.byteLength\n    }, [buffer]);\n  }\n\n  if (isEndOfTimeline) {\n    transmuxer.postMessage({\n      action: 'endTimeline'\n    });\n  } // even if we didn't push any bytes, we have to make sure we flush in case we reached\n  // the end of the segment\n\n\n  transmuxer.postMessage({\n    action: 'flush'\n  });\n};\n\nvar dequeue = function dequeue(transmuxer) {\n  transmuxer.currentTransmux = null;\n\n  if (transmuxer.transmuxQueue.length) {\n    transmuxer.currentTransmux = transmuxer.transmuxQueue.shift();\n\n    if (typeof transmuxer.currentTransmux === 'function') {\n      transmuxer.currentTransmux();\n    } else {\n      processTransmux(transmuxer.currentTransmux);\n    }\n  }\n};\n\nvar processAction = function processAction(transmuxer, action) {\n  transmuxer.postMessage({\n    action: action\n  });\n  dequeue(transmuxer);\n};\n\nvar enqueueAction = function enqueueAction(action, transmuxer) {\n  if (!transmuxer.currentTransmux) {\n    transmuxer.currentTransmux = action;\n    processAction(transmuxer, action);\n    return;\n  }\n\n  transmuxer.transmuxQueue.push(processAction.bind(null, transmuxer, action));\n};\n\nvar reset = function reset(transmuxer) {\n  enqueueAction('reset', transmuxer);\n};\n\nvar endTimeline = function endTimeline(transmuxer) {\n  enqueueAction('endTimeline', transmuxer);\n};\n\nvar transmux = function transmux(options) {\n  if (!options.transmuxer.currentTransmux) {\n    options.transmuxer.currentTransmux = options;\n    processTransmux(options);\n    return;\n  }\n\n  options.transmuxer.transmuxQueue.push(options);\n};\n\nvar createTransmuxer = function createTransmuxer(options) {\n  var transmuxer = new TransmuxWorker();\n  transmuxer.currentTransmux = null;\n  transmuxer.transmuxQueue = [];\n  var term = transmuxer.terminate;\n\n  transmuxer.terminate = function () {\n    transmuxer.currentTransmux = null;\n    transmuxer.transmuxQueue.length = 0;\n    return term.call(transmuxer);\n  };\n\n  transmuxer.postMessage({\n    action: 'init',\n    options: options\n  });\n  return transmuxer;\n};\n\nvar segmentTransmuxer = {\n  reset: reset,\n  endTimeline: endTimeline,\n  transmux: transmux,\n  createTransmuxer: createTransmuxer\n};\n\nvar workerCallback = function workerCallback(options) {\n  var transmuxer = options.transmuxer;\n  var endAction = options.endAction || options.action;\n  var callback = options.callback;\n\n  var message = _extends({}, options, {\n    endAction: null,\n    transmuxer: null,\n    callback: null\n  });\n\n  var listenForEndEvent = function listenForEndEvent(event) {\n    if (event.data.action !== endAction) {\n      return;\n    }\n\n    transmuxer.removeEventListener('message', listenForEndEvent); // transfer ownership of bytes back to us.\n\n    if (event.data.data) {\n      event.data.data = new Uint8Array(event.data.data, options.byteOffset || 0, options.byteLength || event.data.data.byteLength);\n\n      if (options.data) {\n        options.data = event.data.data;\n      }\n    }\n\n    callback(event.data);\n  };\n\n  transmuxer.addEventListener('message', listenForEndEvent);\n\n  if (options.data) {\n    var isArrayBuffer = options.data instanceof ArrayBuffer;\n    message.byteOffset = isArrayBuffer ? 0 : options.data.byteOffset;\n    message.byteLength = options.data.byteLength;\n    var transfers = [isArrayBuffer ? options.data : options.data.buffer];\n    transmuxer.postMessage(message, transfers);\n  } else {\n    transmuxer.postMessage(message);\n  }\n};\n\nvar REQUEST_ERRORS = {\n  FAILURE: 2,\n  TIMEOUT: -101,\n  ABORTED: -102\n};\n/**\n * Abort all requests\n *\n * @param {Object} activeXhrs - an object that tracks all XHR requests\n */\n\nvar abortAll = function abortAll(activeXhrs) {\n  activeXhrs.forEach(function (xhr) {\n    xhr.abort();\n  });\n};\n/**\n * Gather important bandwidth stats once a request has completed\n *\n * @param {Object} request - the XHR request from which to gather stats\n */\n\n\nvar getRequestStats = function getRequestStats(request) {\n  return {\n    bandwidth: request.bandwidth,\n    bytesReceived: request.bytesReceived || 0,\n    roundTripTime: request.roundTripTime || 0\n  };\n};\n/**\n * If possible gather bandwidth stats as a request is in\n * progress\n *\n * @param {Event} progressEvent - an event object from an XHR's progress event\n */\n\n\nvar getProgressStats = function getProgressStats(progressEvent) {\n  var request = progressEvent.target;\n  var roundTripTime = Date.now() - request.requestTime;\n  var stats = {\n    bandwidth: Infinity,\n    bytesReceived: 0,\n    roundTripTime: roundTripTime || 0\n  };\n  stats.bytesReceived = progressEvent.loaded; // This can result in Infinity if stats.roundTripTime is 0 but that is ok\n  // because we should only use bandwidth stats on progress to determine when\n  // abort a request early due to insufficient bandwidth\n\n  stats.bandwidth = Math.floor(stats.bytesReceived / stats.roundTripTime * 8 * 1000);\n  return stats;\n};\n/**\n * Handle all error conditions in one place and return an object\n * with all the information\n *\n * @param {Error|null} error - if non-null signals an error occured with the XHR\n * @param {Object} request -  the XHR request that possibly generated the error\n */\n\n\nvar handleErrors = function handleErrors(error, request) {\n  if (request.timedout) {\n    return {\n      status: request.status,\n      message: 'HLS request timed-out at URL: ' + request.uri,\n      code: REQUEST_ERRORS.TIMEOUT,\n      xhr: request\n    };\n  }\n\n  if (request.aborted) {\n    return {\n      status: request.status,\n      message: 'HLS request aborted at URL: ' + request.uri,\n      code: REQUEST_ERRORS.ABORTED,\n      xhr: request\n    };\n  }\n\n  if (error) {\n    return {\n      status: request.status,\n      message: 'HLS request errored at URL: ' + request.uri,\n      code: REQUEST_ERRORS.FAILURE,\n      xhr: request\n    };\n  }\n\n  if (request.responseType === 'arraybuffer' && request.response.byteLength === 0) {\n    return {\n      status: request.status,\n      message: 'Empty HLS response at URL: ' + request.uri,\n      code: REQUEST_ERRORS.FAILURE,\n      xhr: request\n    };\n  }\n\n  return null;\n};\n/**\n * Handle responses for key data and convert the key data to the correct format\n * for the decryption step later\n *\n * @param {Object} segment - a simplified copy of the segmentInfo object\n *                           from SegmentLoader\n * @param {Array} objects - objects to add the key bytes to.\n * @param {Function} finishProcessingFn - a callback to execute to continue processing\n *                                        this request\n */\n\n\nvar handleKeyResponse = function handleKeyResponse(segment, objects, finishProcessingFn) {\n  return function (error, request) {\n    var response = request.response;\n    var errorObj = handleErrors(error, request);\n\n    if (errorObj) {\n      return finishProcessingFn(errorObj, segment);\n    }\n\n    if (response.byteLength !== 16) {\n      return finishProcessingFn({\n        status: request.status,\n        message: 'Invalid HLS key at URL: ' + request.uri,\n        code: REQUEST_ERRORS.FAILURE,\n        xhr: request\n      }, segment);\n    }\n\n    var view = new DataView(response);\n    var bytes = new Uint32Array([view.getUint32(0), view.getUint32(4), view.getUint32(8), view.getUint32(12)]);\n\n    for (var i = 0; i < objects.length; i++) {\n      objects[i].bytes = bytes;\n    }\n\n    return finishProcessingFn(null, segment);\n  };\n};\n\nvar parseInitSegment = function parseInitSegment(segment, _callback) {\n  var type = detectContainerForBytes(segment.map.bytes); // TODO: We should also handle ts init segments here, but we\n  // only know how to parse mp4 init segments at the moment\n\n  if (type !== 'mp4') {\n    var uri = segment.map.resolvedUri || segment.map.uri;\n    return _callback({\n      internal: true,\n      message: \"Found unsupported \" + (type || 'unknown') + \" container for initialization segment at URL: \" + uri,\n      code: REQUEST_ERRORS.FAILURE\n    });\n  }\n\n  workerCallback({\n    action: 'probeMp4Tracks',\n    data: segment.map.bytes,\n    transmuxer: segment.transmuxer,\n    callback: function callback(_ref) {\n      var tracks = _ref.tracks,\n          data = _ref.data; // transfer bytes back to us\n\n      segment.map.bytes = data;\n      tracks.forEach(function (track) {\n        segment.map.tracks = segment.map.tracks || {}; // only support one track of each type for now\n\n        if (segment.map.tracks[track.type]) {\n          return;\n        }\n\n        segment.map.tracks[track.type] = track;\n\n        if (typeof track.id === 'number' && track.timescale) {\n          segment.map.timescales = segment.map.timescales || {};\n          segment.map.timescales[track.id] = track.timescale;\n        }\n      });\n      return _callback(null);\n    }\n  });\n};\n/**\n * Handle init-segment responses\n *\n * @param {Object} segment - a simplified copy of the segmentInfo object\n *                           from SegmentLoader\n * @param {Function} finishProcessingFn - a callback to execute to continue processing\n *                                        this request\n */\n\n\nvar handleInitSegmentResponse = function handleInitSegmentResponse(_ref2) {\n  var segment = _ref2.segment,\n      finishProcessingFn = _ref2.finishProcessingFn;\n  return function (error, request) {\n    var errorObj = handleErrors(error, request);\n\n    if (errorObj) {\n      return finishProcessingFn(errorObj, segment);\n    }\n\n    var bytes = new Uint8Array(request.response); // init segment is encypted, we will have to wait\n    // until the key request is done to decrypt.\n\n    if (segment.map.key) {\n      segment.map.encryptedBytes = bytes;\n      return finishProcessingFn(null, segment);\n    }\n\n    segment.map.bytes = bytes;\n    parseInitSegment(segment, function (parseError) {\n      if (parseError) {\n        parseError.xhr = request;\n        parseError.status = request.status;\n        return finishProcessingFn(parseError, segment);\n      }\n\n      finishProcessingFn(null, segment);\n    });\n  };\n};\n/**\n * Response handler for segment-requests being sure to set the correct\n * property depending on whether the segment is encryped or not\n * Also records and keeps track of stats that are used for ABR purposes\n *\n * @param {Object} segment - a simplified copy of the segmentInfo object\n *                           from SegmentLoader\n * @param {Function} finishProcessingFn - a callback to execute to continue processing\n *                                        this request\n */\n\n\nvar handleSegmentResponse = function handleSegmentResponse(_ref3) {\n  var segment = _ref3.segment,\n      finishProcessingFn = _ref3.finishProcessingFn,\n      responseType = _ref3.responseType;\n  return function (error, request) {\n    var errorObj = handleErrors(error, request);\n\n    if (errorObj) {\n      return finishProcessingFn(errorObj, segment);\n    }\n\n    var newBytes = // although responseText \"should\" exist, this guard serves to prevent an error being\n    // thrown for two primary cases:\n    // 1. the mime type override stops working, or is not implemented for a specific\n    //    browser\n    // 2. when using mock XHR libraries like sinon that do not allow the override behavior\n    responseType === 'arraybuffer' || !request.responseText ? request.response : stringToArrayBuffer(request.responseText.substring(segment.lastReachedChar || 0));\n    segment.stats = getRequestStats(request);\n\n    if (segment.key) {\n      segment.encryptedBytes = new Uint8Array(newBytes);\n    } else {\n      segment.bytes = new Uint8Array(newBytes);\n    }\n\n    return finishProcessingFn(null, segment);\n  };\n};\n\nvar transmuxAndNotify = function transmuxAndNotify(_ref4) {\n  var segment = _ref4.segment,\n      bytes = _ref4.bytes,\n      trackInfoFn = _ref4.trackInfoFn,\n      timingInfoFn = _ref4.timingInfoFn,\n      videoSegmentTimingInfoFn = _ref4.videoSegmentTimingInfoFn,\n      audioSegmentTimingInfoFn = _ref4.audioSegmentTimingInfoFn,\n      id3Fn = _ref4.id3Fn,\n      captionsFn = _ref4.captionsFn,\n      isEndOfTimeline = _ref4.isEndOfTimeline,\n      endedTimelineFn = _ref4.endedTimelineFn,\n      dataFn = _ref4.dataFn,\n      doneFn = _ref4.doneFn,\n      onTransmuxerLog = _ref4.onTransmuxerLog;\n  var fmp4Tracks = segment.map && segment.map.tracks || {};\n  var isMuxed = Boolean(fmp4Tracks.audio && fmp4Tracks.video); // Keep references to each function so we can null them out after we're done with them.\n  // One reason for this is that in the case of full segments, we want to trust start\n  // times from the probe, rather than the transmuxer.\n\n  var audioStartFn = timingInfoFn.bind(null, segment, 'audio', 'start');\n  var audioEndFn = timingInfoFn.bind(null, segment, 'audio', 'end');\n  var videoStartFn = timingInfoFn.bind(null, segment, 'video', 'start');\n  var videoEndFn = timingInfoFn.bind(null, segment, 'video', 'end');\n\n  var finish = function finish() {\n    return transmux({\n      bytes: bytes,\n      transmuxer: segment.transmuxer,\n      audioAppendStart: segment.audioAppendStart,\n      gopsToAlignWith: segment.gopsToAlignWith,\n      remux: isMuxed,\n      onData: function onData(result) {\n        result.type = result.type === 'combined' ? 'video' : result.type;\n        dataFn(segment, result);\n      },\n      onTrackInfo: function onTrackInfo(trackInfo) {\n        if (trackInfoFn) {\n          if (isMuxed) {\n            trackInfo.isMuxed = true;\n          }\n\n          trackInfoFn(segment, trackInfo);\n        }\n      },\n      onAudioTimingInfo: function onAudioTimingInfo(audioTimingInfo) {\n        // we only want the first start value we encounter\n        if (audioStartFn && typeof audioTimingInfo.start !== 'undefined') {\n          audioStartFn(audioTimingInfo.start);\n          audioStartFn = null;\n        } // we want to continually update the end time\n\n\n        if (audioEndFn && typeof audioTimingInfo.end !== 'undefined') {\n          audioEndFn(audioTimingInfo.end);\n        }\n      },\n      onVideoTimingInfo: function onVideoTimingInfo(videoTimingInfo) {\n        // we only want the first start value we encounter\n        if (videoStartFn && typeof videoTimingInfo.start !== 'undefined') {\n          videoStartFn(videoTimingInfo.start);\n          videoStartFn = null;\n        } // we want to continually update the end time\n\n\n        if (videoEndFn && typeof videoTimingInfo.end !== 'undefined') {\n          videoEndFn(videoTimingInfo.end);\n        }\n      },\n      onVideoSegmentTimingInfo: function onVideoSegmentTimingInfo(videoSegmentTimingInfo) {\n        videoSegmentTimingInfoFn(videoSegmentTimingInfo);\n      },\n      onAudioSegmentTimingInfo: function onAudioSegmentTimingInfo(audioSegmentTimingInfo) {\n        audioSegmentTimingInfoFn(audioSegmentTimingInfo);\n      },\n      onId3: function onId3(id3Frames, dispatchType) {\n        id3Fn(segment, id3Frames, dispatchType);\n      },\n      onCaptions: function onCaptions(captions) {\n        captionsFn(segment, [captions]);\n      },\n      isEndOfTimeline: isEndOfTimeline,\n      onEndedTimeline: function onEndedTimeline() {\n        endedTimelineFn();\n      },\n      onTransmuxerLog: onTransmuxerLog,\n      onDone: function onDone(result) {\n        if (!doneFn) {\n          return;\n        }\n\n        result.type = result.type === 'combined' ? 'video' : result.type;\n        doneFn(null, segment, result);\n      }\n    });\n  }; // In the transmuxer, we don't yet have the ability to extract a \"proper\" start time.\n  // Meaning cached frame data may corrupt our notion of where this segment\n  // really starts. To get around this, probe for the info needed.\n\n\n  workerCallback({\n    action: 'probeTs',\n    transmuxer: segment.transmuxer,\n    data: bytes,\n    baseStartTime: segment.baseStartTime,\n    callback: function callback(data) {\n      segment.bytes = bytes = data.data;\n      var probeResult = data.result;\n\n      if (probeResult) {\n        trackInfoFn(segment, {\n          hasAudio: probeResult.hasAudio,\n          hasVideo: probeResult.hasVideo,\n          isMuxed: isMuxed\n        });\n        trackInfoFn = null;\n\n        if (probeResult.hasAudio && !isMuxed) {\n          audioStartFn(probeResult.audioStart);\n        }\n\n        if (probeResult.hasVideo) {\n          videoStartFn(probeResult.videoStart);\n        }\n\n        audioStartFn = null;\n        videoStartFn = null;\n      }\n\n      finish();\n    }\n  });\n};\n\nvar handleSegmentBytes = function handleSegmentBytes(_ref5) {\n  var segment = _ref5.segment,\n      bytes = _ref5.bytes,\n      trackInfoFn = _ref5.trackInfoFn,\n      timingInfoFn = _ref5.timingInfoFn,\n      videoSegmentTimingInfoFn = _ref5.videoSegmentTimingInfoFn,\n      audioSegmentTimingInfoFn = _ref5.audioSegmentTimingInfoFn,\n      id3Fn = _ref5.id3Fn,\n      captionsFn = _ref5.captionsFn,\n      isEndOfTimeline = _ref5.isEndOfTimeline,\n      endedTimelineFn = _ref5.endedTimelineFn,\n      dataFn = _ref5.dataFn,\n      doneFn = _ref5.doneFn,\n      onTransmuxerLog = _ref5.onTransmuxerLog;\n  var bytesAsUint8Array = new Uint8Array(bytes); // TODO:\n  // We should have a handler that fetches the number of bytes required\n  // to check if something is fmp4. This will allow us to save bandwidth\n  // because we can only blacklist a playlist and abort requests\n  // by codec after trackinfo triggers.\n\n  if (isLikelyFmp4MediaSegment(bytesAsUint8Array)) {\n    segment.isFmp4 = true;\n    var tracks = segment.map.tracks;\n    var trackInfo = {\n      isFmp4: true,\n      hasVideo: !!tracks.video,\n      hasAudio: !!tracks.audio\n    }; // if we have a audio track, with a codec that is not set to\n    // encrypted audio\n\n    if (tracks.audio && tracks.audio.codec && tracks.audio.codec !== 'enca') {\n      trackInfo.audioCodec = tracks.audio.codec;\n    } // if we have a video track, with a codec that is not set to\n    // encrypted video\n\n\n    if (tracks.video && tracks.video.codec && tracks.video.codec !== 'encv') {\n      trackInfo.videoCodec = tracks.video.codec;\n    }\n\n    if (tracks.video && tracks.audio) {\n      trackInfo.isMuxed = true;\n    } // since we don't support appending fmp4 data on progress, we know we have the full\n    // segment here\n\n\n    trackInfoFn(segment, trackInfo); // The probe doesn't provide the segment end time, so only callback with the start\n    // time. The end time can be roughly calculated by the receiver using the duration.\n    //\n    // Note that the start time returned by the probe reflects the baseMediaDecodeTime, as\n    // that is the true start of the segment (where the playback engine should begin\n    // decoding).\n\n    var finishLoading = function finishLoading(captions) {\n      // if the track still has audio at this point it is only possible\n      // for it to be audio only. See `tracks.video && tracks.audio` if statement\n      // above.\n      // we make sure to use segment.bytes here as that\n      dataFn(segment, {\n        data: bytesAsUint8Array,\n        type: trackInfo.hasAudio && !trackInfo.isMuxed ? 'audio' : 'video'\n      });\n\n      if (captions && captions.length) {\n        captionsFn(segment, captions);\n      }\n\n      doneFn(null, segment, {});\n    };\n\n    workerCallback({\n      action: 'probeMp4StartTime',\n      timescales: segment.map.timescales,\n      data: bytesAsUint8Array,\n      transmuxer: segment.transmuxer,\n      callback: function callback(_ref6) {\n        var data = _ref6.data,\n            startTime = _ref6.startTime; // transfer bytes back to us\n\n        bytes = data.buffer;\n        segment.bytes = bytesAsUint8Array = data;\n\n        if (trackInfo.hasAudio && !trackInfo.isMuxed) {\n          timingInfoFn(segment, 'audio', 'start', startTime);\n        }\n\n        if (trackInfo.hasVideo) {\n          timingInfoFn(segment, 'video', 'start', startTime);\n        } // Run through the CaptionParser in case there are captions.\n        // Initialize CaptionParser if it hasn't been yet\n\n\n        if (!tracks.video || !data.byteLength || !segment.transmuxer) {\n          finishLoading();\n          return;\n        }\n\n        workerCallback({\n          action: 'pushMp4Captions',\n          endAction: 'mp4Captions',\n          transmuxer: segment.transmuxer,\n          data: bytesAsUint8Array,\n          timescales: segment.map.timescales,\n          trackIds: [tracks.video.id],\n          callback: function callback(message) {\n            // transfer bytes back to us\n            bytes = message.data.buffer;\n            segment.bytes = bytesAsUint8Array = message.data;\n            message.logs.forEach(function (log) {\n              onTransmuxerLog(videojs.mergeOptions(log, {\n                stream: 'mp4CaptionParser'\n              }));\n            });\n            finishLoading(message.captions);\n          }\n        });\n      }\n    });\n    return;\n  } // VTT or other segments that don't need processing\n\n\n  if (!segment.transmuxer) {\n    doneFn(null, segment, {});\n    return;\n  }\n\n  if (typeof segment.container === 'undefined') {\n    segment.container = detectContainerForBytes(bytesAsUint8Array);\n  }\n\n  if (segment.container !== 'ts' && segment.container !== 'aac') {\n    trackInfoFn(segment, {\n      hasAudio: false,\n      hasVideo: false\n    });\n    doneFn(null, segment, {});\n    return;\n  } // ts or aac\n\n\n  transmuxAndNotify({\n    segment: segment,\n    bytes: bytes,\n    trackInfoFn: trackInfoFn,\n    timingInfoFn: timingInfoFn,\n    videoSegmentTimingInfoFn: videoSegmentTimingInfoFn,\n    audioSegmentTimingInfoFn: audioSegmentTimingInfoFn,\n    id3Fn: id3Fn,\n    captionsFn: captionsFn,\n    isEndOfTimeline: isEndOfTimeline,\n    endedTimelineFn: endedTimelineFn,\n    dataFn: dataFn,\n    doneFn: doneFn,\n    onTransmuxerLog: onTransmuxerLog\n  });\n};\n\nvar decrypt = function decrypt(_ref7, callback) {\n  var id = _ref7.id,\n      key = _ref7.key,\n      encryptedBytes = _ref7.encryptedBytes,\n      decryptionWorker = _ref7.decryptionWorker;\n\n  var decryptionHandler = function decryptionHandler(event) {\n    if (event.data.source === id) {\n      decryptionWorker.removeEventListener('message', decryptionHandler);\n      var decrypted = event.data.decrypted;\n      callback(new Uint8Array(decrypted.bytes, decrypted.byteOffset, decrypted.byteLength));\n    }\n  };\n\n  decryptionWorker.addEventListener('message', decryptionHandler);\n  var keyBytes;\n\n  if (key.bytes.slice) {\n    keyBytes = key.bytes.slice();\n  } else {\n    keyBytes = new Uint32Array(Array.prototype.slice.call(key.bytes));\n  } // incrementally decrypt the bytes\n\n\n  decryptionWorker.postMessage(createTransferableMessage({\n    source: id,\n    encrypted: encryptedBytes,\n    key: keyBytes,\n    iv: key.iv\n  }), [encryptedBytes.buffer, keyBytes.buffer]);\n};\n/**\n * Decrypt the segment via the decryption web worker\n *\n * @param {WebWorker} decryptionWorker - a WebWorker interface to AES-128 decryption\n *                                       routines\n * @param {Object} segment - a simplified copy of the segmentInfo object\n *                           from SegmentLoader\n * @param {Function} trackInfoFn - a callback that receives track info\n * @param {Function} timingInfoFn - a callback that receives timing info\n * @param {Function} videoSegmentTimingInfoFn\n *                   a callback that receives video timing info based on media times and\n *                   any adjustments made by the transmuxer\n * @param {Function} audioSegmentTimingInfoFn\n *                   a callback that receives audio timing info based on media times and\n *                   any adjustments made by the transmuxer\n * @param {boolean}  isEndOfTimeline\n *                   true if this segment represents the last segment in a timeline\n * @param {Function} endedTimelineFn\n *                   a callback made when a timeline is ended, will only be called if\n *                   isEndOfTimeline is true\n * @param {Function} dataFn - a callback that is executed when segment bytes are available\n *                            and ready to use\n * @param {Function} doneFn - a callback that is executed after decryption has completed\n */\n\n\nvar decryptSegment = function decryptSegment(_ref8) {\n  var decryptionWorker = _ref8.decryptionWorker,\n      segment = _ref8.segment,\n      trackInfoFn = _ref8.trackInfoFn,\n      timingInfoFn = _ref8.timingInfoFn,\n      videoSegmentTimingInfoFn = _ref8.videoSegmentTimingInfoFn,\n      audioSegmentTimingInfoFn = _ref8.audioSegmentTimingInfoFn,\n      id3Fn = _ref8.id3Fn,\n      captionsFn = _ref8.captionsFn,\n      isEndOfTimeline = _ref8.isEndOfTimeline,\n      endedTimelineFn = _ref8.endedTimelineFn,\n      dataFn = _ref8.dataFn,\n      doneFn = _ref8.doneFn,\n      onTransmuxerLog = _ref8.onTransmuxerLog;\n  decrypt({\n    id: segment.requestId,\n    key: segment.key,\n    encryptedBytes: segment.encryptedBytes,\n    decryptionWorker: decryptionWorker\n  }, function (decryptedBytes) {\n    segment.bytes = decryptedBytes;\n    handleSegmentBytes({\n      segment: segment,\n      bytes: segment.bytes,\n      trackInfoFn: trackInfoFn,\n      timingInfoFn: timingInfoFn,\n      videoSegmentTimingInfoFn: videoSegmentTimingInfoFn,\n      audioSegmentTimingInfoFn: audioSegmentTimingInfoFn,\n      id3Fn: id3Fn,\n      captionsFn: captionsFn,\n      isEndOfTimeline: isEndOfTimeline,\n      endedTimelineFn: endedTimelineFn,\n      dataFn: dataFn,\n      doneFn: doneFn,\n      onTransmuxerLog: onTransmuxerLog\n    });\n  });\n};\n/**\n * This function waits for all XHRs to finish (with either success or failure)\n * before continueing processing via it's callback. The function gathers errors\n * from each request into a single errors array so that the error status for\n * each request can be examined later.\n *\n * @param {Object} activeXhrs - an object that tracks all XHR requests\n * @param {WebWorker} decryptionWorker - a WebWorker interface to AES-128 decryption\n *                                       routines\n * @param {Function} trackInfoFn - a callback that receives track info\n * @param {Function} timingInfoFn - a callback that receives timing info\n * @param {Function} videoSegmentTimingInfoFn\n *                   a callback that receives video timing info based on media times and\n *                   any adjustments made by the transmuxer\n * @param {Function} audioSegmentTimingInfoFn\n *                   a callback that receives audio timing info based on media times and\n *                   any adjustments made by the transmuxer\n * @param {Function} id3Fn - a callback that receives ID3 metadata\n * @param {Function} captionsFn - a callback that receives captions\n * @param {boolean}  isEndOfTimeline\n *                   true if this segment represents the last segment in a timeline\n * @param {Function} endedTimelineFn\n *                   a callback made when a timeline is ended, will only be called if\n *                   isEndOfTimeline is true\n * @param {Function} dataFn - a callback that is executed when segment bytes are available\n *                            and ready to use\n * @param {Function} doneFn - a callback that is executed after all resources have been\n *                            downloaded and any decryption completed\n */\n\n\nvar waitForCompletion = function waitForCompletion(_ref9) {\n  var activeXhrs = _ref9.activeXhrs,\n      decryptionWorker = _ref9.decryptionWorker,\n      trackInfoFn = _ref9.trackInfoFn,\n      timingInfoFn = _ref9.timingInfoFn,\n      videoSegmentTimingInfoFn = _ref9.videoSegmentTimingInfoFn,\n      audioSegmentTimingInfoFn = _ref9.audioSegmentTimingInfoFn,\n      id3Fn = _ref9.id3Fn,\n      captionsFn = _ref9.captionsFn,\n      isEndOfTimeline = _ref9.isEndOfTimeline,\n      endedTimelineFn = _ref9.endedTimelineFn,\n      dataFn = _ref9.dataFn,\n      doneFn = _ref9.doneFn,\n      onTransmuxerLog = _ref9.onTransmuxerLog;\n  var count = 0;\n  var didError = false;\n  return function (error, segment) {\n    if (didError) {\n      return;\n    }\n\n    if (error) {\n      didError = true; // If there are errors, we have to abort any outstanding requests\n\n      abortAll(activeXhrs); // Even though the requests above are aborted, and in theory we could wait until we\n      // handle the aborted events from those requests, there are some cases where we may\n      // never get an aborted event. For instance, if the network connection is lost and\n      // there were two requests, the first may have triggered an error immediately, while\n      // the second request remains unsent. In that case, the aborted algorithm will not\n      // trigger an abort: see https://xhr.spec.whatwg.org/#the-abort()-method\n      //\n      // We also can't rely on the ready state of the XHR, since the request that\n      // triggered the connection error may also show as a ready state of 0 (unsent).\n      // Therefore, we have to finish this group of requests immediately after the first\n      // seen error.\n\n      return doneFn(error, segment);\n    }\n\n    count += 1;\n\n    if (count === activeXhrs.length) {\n      var segmentFinish = function segmentFinish() {\n        if (segment.encryptedBytes) {\n          return decryptSegment({\n            decryptionWorker: decryptionWorker,\n            segment: segment,\n            trackInfoFn: trackInfoFn,\n            timingInfoFn: timingInfoFn,\n            videoSegmentTimingInfoFn: videoSegmentTimingInfoFn,\n            audioSegmentTimingInfoFn: audioSegmentTimingInfoFn,\n            id3Fn: id3Fn,\n            captionsFn: captionsFn,\n            isEndOfTimeline: isEndOfTimeline,\n            endedTimelineFn: endedTimelineFn,\n            dataFn: dataFn,\n            doneFn: doneFn,\n            onTransmuxerLog: onTransmuxerLog\n          });\n        } // Otherwise, everything is ready just continue\n\n\n        handleSegmentBytes({\n          segment: segment,\n          bytes: segment.bytes,\n          trackInfoFn: trackInfoFn,\n          timingInfoFn: timingInfoFn,\n          videoSegmentTimingInfoFn: videoSegmentTimingInfoFn,\n          audioSegmentTimingInfoFn: audioSegmentTimingInfoFn,\n          id3Fn: id3Fn,\n          captionsFn: captionsFn,\n          isEndOfTimeline: isEndOfTimeline,\n          endedTimelineFn: endedTimelineFn,\n          dataFn: dataFn,\n          doneFn: doneFn,\n          onTransmuxerLog: onTransmuxerLog\n        });\n      }; // Keep track of when *all* of the requests have completed\n\n\n      segment.endOfAllRequests = Date.now();\n\n      if (segment.map && segment.map.encryptedBytes && !segment.map.bytes) {\n        return decrypt({\n          decryptionWorker: decryptionWorker,\n          // add -init to the \"id\" to differentiate between segment\n          // and init segment decryption, just in case they happen\n          // at the same time at some point in the future.\n          id: segment.requestId + '-init',\n          encryptedBytes: segment.map.encryptedBytes,\n          key: segment.map.key\n        }, function (decryptedBytes) {\n          segment.map.bytes = decryptedBytes;\n          parseInitSegment(segment, function (parseError) {\n            if (parseError) {\n              abortAll(activeXhrs);\n              return doneFn(parseError, segment);\n            }\n\n            segmentFinish();\n          });\n        });\n      }\n\n      segmentFinish();\n    }\n  };\n};\n/**\n * Calls the abort callback if any request within the batch was aborted. Will only call\n * the callback once per batch of requests, even if multiple were aborted.\n *\n * @param {Object} loadendState - state to check to see if the abort function was called\n * @param {Function} abortFn - callback to call for abort\n */\n\n\nvar handleLoadEnd = function handleLoadEnd(_ref10) {\n  var loadendState = _ref10.loadendState,\n      abortFn = _ref10.abortFn;\n  return function (event) {\n    var request = event.target;\n\n    if (request.aborted && abortFn && !loadendState.calledAbortFn) {\n      abortFn();\n      loadendState.calledAbortFn = true;\n    }\n  };\n};\n/**\n * Simple progress event callback handler that gathers some stats before\n * executing a provided callback with the `segment` object\n *\n * @param {Object} segment - a simplified copy of the segmentInfo object\n *                           from SegmentLoader\n * @param {Function} progressFn - a callback that is executed each time a progress event\n *                                is received\n * @param {Function} trackInfoFn - a callback that receives track info\n * @param {Function} timingInfoFn - a callback that receives timing info\n * @param {Function} videoSegmentTimingInfoFn\n *                   a callback that receives video timing info based on media times and\n *                   any adjustments made by the transmuxer\n * @param {Function} audioSegmentTimingInfoFn\n *                   a callback that receives audio timing info based on media times and\n *                   any adjustments made by the transmuxer\n * @param {boolean}  isEndOfTimeline\n *                   true if this segment represents the last segment in a timeline\n * @param {Function} endedTimelineFn\n *                   a callback made when a timeline is ended, will only be called if\n *                   isEndOfTimeline is true\n * @param {Function} dataFn - a callback that is executed when segment bytes are available\n *                            and ready to use\n * @param {Event} event - the progress event object from XMLHttpRequest\n */\n\n\nvar handleProgress = function handleProgress(_ref11) {\n  var segment = _ref11.segment,\n      progressFn = _ref11.progressFn;\n  _ref11.trackInfoFn;\n  _ref11.timingInfoFn;\n  _ref11.videoSegmentTimingInfoFn;\n  _ref11.audioSegmentTimingInfoFn;\n  _ref11.id3Fn;\n  _ref11.captionsFn;\n  _ref11.isEndOfTimeline;\n  _ref11.endedTimelineFn;\n  _ref11.dataFn;\n  return function (event) {\n    var request = event.target;\n\n    if (request.aborted) {\n      return;\n    }\n\n    segment.stats = videojs.mergeOptions(segment.stats, getProgressStats(event)); // record the time that we receive the first byte of data\n\n    if (!segment.stats.firstBytesReceivedAt && segment.stats.bytesReceived) {\n      segment.stats.firstBytesReceivedAt = Date.now();\n    }\n\n    return progressFn(event, segment);\n  };\n};\n/**\n * Load all resources and does any processing necessary for a media-segment\n *\n * Features:\n *   decrypts the media-segment if it has a key uri and an iv\n *   aborts *all* requests if *any* one request fails\n *\n * The segment object, at minimum, has the following format:\n * {\n *   resolvedUri: String,\n *   [transmuxer]: Object,\n *   [byterange]: {\n *     offset: Number,\n *     length: Number\n *   },\n *   [key]: {\n *     resolvedUri: String\n *     [byterange]: {\n *       offset: Number,\n *       length: Number\n *     },\n *     iv: {\n *       bytes: Uint32Array\n *     }\n *   },\n *   [map]: {\n *     resolvedUri: String,\n *     [byterange]: {\n *       offset: Number,\n *       length: Number\n *     },\n *     [bytes]: Uint8Array\n *   }\n * }\n * ...where [name] denotes optional properties\n *\n * @param {Function} xhr - an instance of the xhr wrapper in xhr.js\n * @param {Object} xhrOptions - the base options to provide to all xhr requests\n * @param {WebWorker} decryptionWorker - a WebWorker interface to AES-128\n *                                       decryption routines\n * @param {Object} segment - a simplified copy of the segmentInfo object\n *                           from SegmentLoader\n * @param {Function} abortFn - a callback called (only once) if any piece of a request was\n *                             aborted\n * @param {Function} progressFn - a callback that receives progress events from the main\n *                                segment's xhr request\n * @param {Function} trackInfoFn - a callback that receives track info\n * @param {Function} timingInfoFn - a callback that receives timing info\n * @param {Function} videoSegmentTimingInfoFn\n *                   a callback that receives video timing info based on media times and\n *                   any adjustments made by the transmuxer\n * @param {Function} audioSegmentTimingInfoFn\n *                   a callback that receives audio timing info based on media times and\n *                   any adjustments made by the transmuxer\n * @param {Function} id3Fn - a callback that receives ID3 metadata\n * @param {Function} captionsFn - a callback that receives captions\n * @param {boolean}  isEndOfTimeline\n *                   true if this segment represents the last segment in a timeline\n * @param {Function} endedTimelineFn\n *                   a callback made when a timeline is ended, will only be called if\n *                   isEndOfTimeline is true\n * @param {Function} dataFn - a callback that receives data from the main segment's xhr\n *                            request, transmuxed if needed\n * @param {Function} doneFn - a callback that is executed only once all requests have\n *                            succeeded or failed\n * @return {Function} a function that, when invoked, immediately aborts all\n *                     outstanding requests\n */\n\n\nvar mediaSegmentRequest = function mediaSegmentRequest(_ref12) {\n  var xhr = _ref12.xhr,\n      xhrOptions = _ref12.xhrOptions,\n      decryptionWorker = _ref12.decryptionWorker,\n      segment = _ref12.segment,\n      abortFn = _ref12.abortFn,\n      progressFn = _ref12.progressFn,\n      trackInfoFn = _ref12.trackInfoFn,\n      timingInfoFn = _ref12.timingInfoFn,\n      videoSegmentTimingInfoFn = _ref12.videoSegmentTimingInfoFn,\n      audioSegmentTimingInfoFn = _ref12.audioSegmentTimingInfoFn,\n      id3Fn = _ref12.id3Fn,\n      captionsFn = _ref12.captionsFn,\n      isEndOfTimeline = _ref12.isEndOfTimeline,\n      endedTimelineFn = _ref12.endedTimelineFn,\n      dataFn = _ref12.dataFn,\n      doneFn = _ref12.doneFn,\n      onTransmuxerLog = _ref12.onTransmuxerLog;\n  var activeXhrs = [];\n  var finishProcessingFn = waitForCompletion({\n    activeXhrs: activeXhrs,\n    decryptionWorker: decryptionWorker,\n    trackInfoFn: trackInfoFn,\n    timingInfoFn: timingInfoFn,\n    videoSegmentTimingInfoFn: videoSegmentTimingInfoFn,\n    audioSegmentTimingInfoFn: audioSegmentTimingInfoFn,\n    id3Fn: id3Fn,\n    captionsFn: captionsFn,\n    isEndOfTimeline: isEndOfTimeline,\n    endedTimelineFn: endedTimelineFn,\n    dataFn: dataFn,\n    doneFn: doneFn,\n    onTransmuxerLog: onTransmuxerLog\n  }); // optionally, request the decryption key\n\n  if (segment.key && !segment.key.bytes) {\n    var objects = [segment.key];\n\n    if (segment.map && !segment.map.bytes && segment.map.key && segment.map.key.resolvedUri === segment.key.resolvedUri) {\n      objects.push(segment.map.key);\n    }\n\n    var keyRequestOptions = videojs.mergeOptions(xhrOptions, {\n      uri: segment.key.resolvedUri,\n      responseType: 'arraybuffer'\n    });\n    var keyRequestCallback = handleKeyResponse(segment, objects, finishProcessingFn);\n    var keyXhr = xhr(keyRequestOptions, keyRequestCallback);\n    activeXhrs.push(keyXhr);\n  } // optionally, request the associated media init segment\n\n\n  if (segment.map && !segment.map.bytes) {\n    var differentMapKey = segment.map.key && (!segment.key || segment.key.resolvedUri !== segment.map.key.resolvedUri);\n\n    if (differentMapKey) {\n      var mapKeyRequestOptions = videojs.mergeOptions(xhrOptions, {\n        uri: segment.map.key.resolvedUri,\n        responseType: 'arraybuffer'\n      });\n      var mapKeyRequestCallback = handleKeyResponse(segment, [segment.map.key], finishProcessingFn);\n      var mapKeyXhr = xhr(mapKeyRequestOptions, mapKeyRequestCallback);\n      activeXhrs.push(mapKeyXhr);\n    }\n\n    var initSegmentOptions = videojs.mergeOptions(xhrOptions, {\n      uri: segment.map.resolvedUri,\n      responseType: 'arraybuffer',\n      headers: segmentXhrHeaders(segment.map)\n    });\n    var initSegmentRequestCallback = handleInitSegmentResponse({\n      segment: segment,\n      finishProcessingFn: finishProcessingFn\n    });\n    var initSegmentXhr = xhr(initSegmentOptions, initSegmentRequestCallback);\n    activeXhrs.push(initSegmentXhr);\n  }\n\n  var segmentRequestOptions = videojs.mergeOptions(xhrOptions, {\n    uri: segment.part && segment.part.resolvedUri || segment.resolvedUri,\n    responseType: 'arraybuffer',\n    headers: segmentXhrHeaders(segment)\n  });\n  var segmentRequestCallback = handleSegmentResponse({\n    segment: segment,\n    finishProcessingFn: finishProcessingFn,\n    responseType: segmentRequestOptions.responseType\n  });\n  var segmentXhr = xhr(segmentRequestOptions, segmentRequestCallback);\n  segmentXhr.addEventListener('progress', handleProgress({\n    segment: segment,\n    progressFn: progressFn,\n    trackInfoFn: trackInfoFn,\n    timingInfoFn: timingInfoFn,\n    videoSegmentTimingInfoFn: videoSegmentTimingInfoFn,\n    audioSegmentTimingInfoFn: audioSegmentTimingInfoFn,\n    id3Fn: id3Fn,\n    captionsFn: captionsFn,\n    isEndOfTimeline: isEndOfTimeline,\n    endedTimelineFn: endedTimelineFn,\n    dataFn: dataFn\n  }));\n  activeXhrs.push(segmentXhr); // since all parts of the request must be considered, but should not make callbacks\n  // multiple times, provide a shared state object\n\n  var loadendState = {};\n  activeXhrs.forEach(function (activeXhr) {\n    activeXhr.addEventListener('loadend', handleLoadEnd({\n      loadendState: loadendState,\n      abortFn: abortFn\n    }));\n  });\n  return function () {\n    return abortAll(activeXhrs);\n  };\n};\n/**\n * @file - codecs.js - Handles tasks regarding codec strings such as translating them to\n * codec strings, or translating codec strings into objects that can be examined.\n */\n\n\nvar logFn$1 = logger('CodecUtils');\n/**\n * Returns a set of codec strings parsed from the playlist or the default\n * codec strings if no codecs were specified in the playlist\n *\n * @param {Playlist} media the current media playlist\n * @return {Object} an object with the video and audio codecs\n */\n\nvar getCodecs = function getCodecs(media) {\n  // if the codecs were explicitly specified, use them instead of the\n  // defaults\n  var mediaAttributes = media.attributes || {};\n\n  if (mediaAttributes.CODECS) {\n    return parseCodecs(mediaAttributes.CODECS);\n  }\n};\n\nvar isMaat = function isMaat(master, media) {\n  var mediaAttributes = media.attributes || {};\n  return master && master.mediaGroups && master.mediaGroups.AUDIO && mediaAttributes.AUDIO && master.mediaGroups.AUDIO[mediaAttributes.AUDIO];\n};\n\nvar isMuxed = function isMuxed(master, media) {\n  if (!isMaat(master, media)) {\n    return true;\n  }\n\n  var mediaAttributes = media.attributes || {};\n  var audioGroup = master.mediaGroups.AUDIO[mediaAttributes.AUDIO];\n\n  for (var groupId in audioGroup) {\n    // If an audio group has a URI (the case for HLS, as HLS will use external playlists),\n    // or there are listed playlists (the case for DASH, as the manifest will have already\n    // provided all of the details necessary to generate the audio playlist, as opposed to\n    // HLS' externally requested playlists), then the content is demuxed.\n    if (!audioGroup[groupId].uri && !audioGroup[groupId].playlists) {\n      return true;\n    }\n  }\n\n  return false;\n};\n\nvar unwrapCodecList = function unwrapCodecList(codecList) {\n  var codecs = {};\n  codecList.forEach(function (_ref) {\n    var mediaType = _ref.mediaType,\n        type = _ref.type,\n        details = _ref.details;\n    codecs[mediaType] = codecs[mediaType] || [];\n    codecs[mediaType].push(translateLegacyCodec(\"\" + type + details));\n  });\n  Object.keys(codecs).forEach(function (mediaType) {\n    if (codecs[mediaType].length > 1) {\n      logFn$1(\"multiple \" + mediaType + \" codecs found as attributes: \" + codecs[mediaType].join(', ') + \". Setting playlist codecs to null so that we wait for mux.js to probe segments for real codecs.\");\n      codecs[mediaType] = null;\n      return;\n    }\n\n    codecs[mediaType] = codecs[mediaType][0];\n  });\n  return codecs;\n};\n\nvar codecCount = function codecCount(codecObj) {\n  var count = 0;\n\n  if (codecObj.audio) {\n    count++;\n  }\n\n  if (codecObj.video) {\n    count++;\n  }\n\n  return count;\n};\n/**\n * Calculates the codec strings for a working configuration of\n * SourceBuffers to play variant streams in a master playlist. If\n * there is no possible working configuration, an empty object will be\n * returned.\n *\n * @param master {Object} the m3u8 object for the master playlist\n * @param media {Object} the m3u8 object for the variant playlist\n * @return {Object} the codec strings.\n *\n * @private\n */\n\n\nvar codecsForPlaylist = function codecsForPlaylist(master, media) {\n  var mediaAttributes = media.attributes || {};\n  var codecInfo = unwrapCodecList(getCodecs(media) || []); // HLS with multiple-audio tracks must always get an audio codec.\n  // Put another way, there is no way to have a video-only multiple-audio HLS!\n\n  if (isMaat(master, media) && !codecInfo.audio) {\n    if (!isMuxed(master, media)) {\n      // It is possible for codecs to be specified on the audio media group playlist but\n      // not on the rendition playlist. This is mostly the case for DASH, where audio and\n      // video are always separate (and separately specified).\n      var defaultCodecs = unwrapCodecList(codecsFromDefault(master, mediaAttributes.AUDIO) || []);\n\n      if (defaultCodecs.audio) {\n        codecInfo.audio = defaultCodecs.audio;\n      }\n    }\n  }\n\n  return codecInfo;\n};\n\nvar logFn = logger('PlaylistSelector');\n\nvar representationToString = function representationToString(representation) {\n  if (!representation || !representation.playlist) {\n    return;\n  }\n\n  var playlist = representation.playlist;\n  return JSON.stringify({\n    id: playlist.id,\n    bandwidth: representation.bandwidth,\n    width: representation.width,\n    height: representation.height,\n    codecs: playlist.attributes && playlist.attributes.CODECS || ''\n  });\n}; // Utilities\n\n/**\n * Returns the CSS value for the specified property on an element\n * using `getComputedStyle`. Firefox has a long-standing issue where\n * getComputedStyle() may return null when running in an iframe with\n * `display: none`.\n *\n * @see https://bugzilla.mozilla.org/show_bug.cgi?id=548397\n * @param {HTMLElement} el the htmlelement to work on\n * @param {string} the proprety to get the style for\n */\n\n\nvar safeGetComputedStyle = function safeGetComputedStyle(el, property) {\n  if (!el) {\n    return '';\n  }\n\n  var result = window.getComputedStyle(el);\n\n  if (!result) {\n    return '';\n  }\n\n  return result[property];\n};\n/**\n * Resuable stable sort function\n *\n * @param {Playlists} array\n * @param {Function} sortFn Different comparators\n * @function stableSort\n */\n\n\nvar stableSort = function stableSort(array, sortFn) {\n  var newArray = array.slice();\n  array.sort(function (left, right) {\n    var cmp = sortFn(left, right);\n\n    if (cmp === 0) {\n      return newArray.indexOf(left) - newArray.indexOf(right);\n    }\n\n    return cmp;\n  });\n};\n/**\n * A comparator function to sort two playlist object by bandwidth.\n *\n * @param {Object} left a media playlist object\n * @param {Object} right a media playlist object\n * @return {number} Greater than zero if the bandwidth attribute of\n * left is greater than the corresponding attribute of right. Less\n * than zero if the bandwidth of right is greater than left and\n * exactly zero if the two are equal.\n */\n\n\nvar comparePlaylistBandwidth = function comparePlaylistBandwidth(left, right) {\n  var leftBandwidth;\n  var rightBandwidth;\n\n  if (left.attributes.BANDWIDTH) {\n    leftBandwidth = left.attributes.BANDWIDTH;\n  }\n\n  leftBandwidth = leftBandwidth || window.Number.MAX_VALUE;\n\n  if (right.attributes.BANDWIDTH) {\n    rightBandwidth = right.attributes.BANDWIDTH;\n  }\n\n  rightBandwidth = rightBandwidth || window.Number.MAX_VALUE;\n  return leftBandwidth - rightBandwidth;\n};\n/**\n * A comparator function to sort two playlist object by resolution (width).\n *\n * @param {Object} left a media playlist object\n * @param {Object} right a media playlist object\n * @return {number} Greater than zero if the resolution.width attribute of\n * left is greater than the corresponding attribute of right. Less\n * than zero if the resolution.width of right is greater than left and\n * exactly zero if the two are equal.\n */\n\n\nvar comparePlaylistResolution = function comparePlaylistResolution(left, right) {\n  var leftWidth;\n  var rightWidth;\n\n  if (left.attributes.RESOLUTION && left.attributes.RESOLUTION.width) {\n    leftWidth = left.attributes.RESOLUTION.width;\n  }\n\n  leftWidth = leftWidth || window.Number.MAX_VALUE;\n\n  if (right.attributes.RESOLUTION && right.attributes.RESOLUTION.width) {\n    rightWidth = right.attributes.RESOLUTION.width;\n  }\n\n  rightWidth = rightWidth || window.Number.MAX_VALUE; // NOTE - Fallback to bandwidth sort as appropriate in cases where multiple renditions\n  // have the same media dimensions/ resolution\n\n  if (leftWidth === rightWidth && left.attributes.BANDWIDTH && right.attributes.BANDWIDTH) {\n    return left.attributes.BANDWIDTH - right.attributes.BANDWIDTH;\n  }\n\n  return leftWidth - rightWidth;\n};\n/**\n * Chooses the appropriate media playlist based on bandwidth and player size\n *\n * @param {Object} master\n *        Object representation of the master manifest\n * @param {number} playerBandwidth\n *        Current calculated bandwidth of the player\n * @param {number} playerWidth\n *        Current width of the player element (should account for the device pixel ratio)\n * @param {number} playerHeight\n *        Current height of the player element (should account for the device pixel ratio)\n * @param {boolean} limitRenditionByPlayerDimensions\n *        True if the player width and height should be used during the selection, false otherwise\n * @param {Object} masterPlaylistController\n *        the current masterPlaylistController object\n * @return {Playlist} the highest bitrate playlist less than the\n * currently detected bandwidth, accounting for some amount of\n * bandwidth variance\n */\n\n\nvar simpleSelector = function simpleSelector(master, playerBandwidth, playerWidth, playerHeight, limitRenditionByPlayerDimensions, masterPlaylistController) {\n  // If we end up getting called before `master` is available, exit early\n  if (!master) {\n    return;\n  }\n\n  var options = {\n    bandwidth: playerBandwidth,\n    width: playerWidth,\n    height: playerHeight,\n    limitRenditionByPlayerDimensions: limitRenditionByPlayerDimensions\n  };\n  var playlists = master.playlists; // if playlist is audio only, select between currently active audio group playlists.\n\n  if (Playlist.isAudioOnly(master)) {\n    playlists = masterPlaylistController.getAudioTrackPlaylists_(); // add audioOnly to options so that we log audioOnly: true\n    // at the buttom of this function for debugging.\n\n    options.audioOnly = true;\n  } // convert the playlists to an intermediary representation to make comparisons easier\n\n\n  var sortedPlaylistReps = playlists.map(function (playlist) {\n    var bandwidth;\n    var width = playlist.attributes && playlist.attributes.RESOLUTION && playlist.attributes.RESOLUTION.width;\n    var height = playlist.attributes && playlist.attributes.RESOLUTION && playlist.attributes.RESOLUTION.height;\n    bandwidth = playlist.attributes && playlist.attributes.BANDWIDTH;\n    bandwidth = bandwidth || window.Number.MAX_VALUE;\n    return {\n      bandwidth: bandwidth,\n      width: width,\n      height: height,\n      playlist: playlist\n    };\n  });\n  stableSort(sortedPlaylistReps, function (left, right) {\n    return left.bandwidth - right.bandwidth;\n  }); // filter out any playlists that have been excluded due to\n  // incompatible configurations\n\n  sortedPlaylistReps = sortedPlaylistReps.filter(function (rep) {\n    return !Playlist.isIncompatible(rep.playlist);\n  }); // filter out any playlists that have been disabled manually through the representations\n  // api or blacklisted temporarily due to playback errors.\n\n  var enabledPlaylistReps = sortedPlaylistReps.filter(function (rep) {\n    return Playlist.isEnabled(rep.playlist);\n  });\n\n  if (!enabledPlaylistReps.length) {\n    // if there are no enabled playlists, then they have all been blacklisted or disabled\n    // by the user through the representations api. In this case, ignore blacklisting and\n    // fallback to what the user wants by using playlists the user has not disabled.\n    enabledPlaylistReps = sortedPlaylistReps.filter(function (rep) {\n      return !Playlist.isDisabled(rep.playlist);\n    });\n  } // filter out any variant that has greater effective bitrate\n  // than the current estimated bandwidth\n\n\n  var bandwidthPlaylistReps = enabledPlaylistReps.filter(function (rep) {\n    return rep.bandwidth * Config.BANDWIDTH_VARIANCE < playerBandwidth;\n  });\n  var highestRemainingBandwidthRep = bandwidthPlaylistReps[bandwidthPlaylistReps.length - 1]; // get all of the renditions with the same (highest) bandwidth\n  // and then taking the very first element\n\n  var bandwidthBestRep = bandwidthPlaylistReps.filter(function (rep) {\n    return rep.bandwidth === highestRemainingBandwidthRep.bandwidth;\n  })[0]; // if we're not going to limit renditions by player size, make an early decision.\n\n  if (limitRenditionByPlayerDimensions === false) {\n    var _chosenRep = bandwidthBestRep || enabledPlaylistReps[0] || sortedPlaylistReps[0];\n\n    if (_chosenRep && _chosenRep.playlist) {\n      var type = 'sortedPlaylistReps';\n\n      if (bandwidthBestRep) {\n        type = 'bandwidthBestRep';\n      }\n\n      if (enabledPlaylistReps[0]) {\n        type = 'enabledPlaylistReps';\n      }\n\n      logFn(\"choosing \" + representationToString(_chosenRep) + \" using \" + type + \" with options\", options);\n      return _chosenRep.playlist;\n    }\n\n    logFn('could not choose a playlist with options', options);\n    return null;\n  } // filter out playlists without resolution information\n\n\n  var haveResolution = bandwidthPlaylistReps.filter(function (rep) {\n    return rep.width && rep.height;\n  }); // sort variants by resolution\n\n  stableSort(haveResolution, function (left, right) {\n    return left.width - right.width;\n  }); // if we have the exact resolution as the player use it\n\n  var resolutionBestRepList = haveResolution.filter(function (rep) {\n    return rep.width === playerWidth && rep.height === playerHeight;\n  });\n  highestRemainingBandwidthRep = resolutionBestRepList[resolutionBestRepList.length - 1]; // ensure that we pick the highest bandwidth variant that have exact resolution\n\n  var resolutionBestRep = resolutionBestRepList.filter(function (rep) {\n    return rep.bandwidth === highestRemainingBandwidthRep.bandwidth;\n  })[0];\n  var resolutionPlusOneList;\n  var resolutionPlusOneSmallest;\n  var resolutionPlusOneRep; // find the smallest variant that is larger than the player\n  // if there is no match of exact resolution\n\n  if (!resolutionBestRep) {\n    resolutionPlusOneList = haveResolution.filter(function (rep) {\n      return rep.width > playerWidth || rep.height > playerHeight;\n    }); // find all the variants have the same smallest resolution\n\n    resolutionPlusOneSmallest = resolutionPlusOneList.filter(function (rep) {\n      return rep.width === resolutionPlusOneList[0].width && rep.height === resolutionPlusOneList[0].height;\n    }); // ensure that we also pick the highest bandwidth variant that\n    // is just-larger-than the video player\n\n    highestRemainingBandwidthRep = resolutionPlusOneSmallest[resolutionPlusOneSmallest.length - 1];\n    resolutionPlusOneRep = resolutionPlusOneSmallest.filter(function (rep) {\n      return rep.bandwidth === highestRemainingBandwidthRep.bandwidth;\n    })[0];\n  }\n\n  var leastPixelDiffRep; // If this selector proves to be better than others,\n  // resolutionPlusOneRep and resolutionBestRep and all\n  // the code involving them should be removed.\n\n  if (masterPlaylistController.experimentalLeastPixelDiffSelector) {\n    // find the variant that is closest to the player's pixel size\n    var leastPixelDiffList = haveResolution.map(function (rep) {\n      rep.pixelDiff = Math.abs(rep.width - playerWidth) + Math.abs(rep.height - playerHeight);\n      return rep;\n    }); // get the highest bandwidth, closest resolution playlist\n\n    stableSort(leastPixelDiffList, function (left, right) {\n      // sort by highest bandwidth if pixelDiff is the same\n      if (left.pixelDiff === right.pixelDiff) {\n        return right.bandwidth - left.bandwidth;\n      }\n\n      return left.pixelDiff - right.pixelDiff;\n    });\n    leastPixelDiffRep = leastPixelDiffList[0];\n  } // fallback chain of variants\n\n\n  var chosenRep = leastPixelDiffRep || resolutionPlusOneRep || resolutionBestRep || bandwidthBestRep || enabledPlaylistReps[0] || sortedPlaylistReps[0];\n\n  if (chosenRep && chosenRep.playlist) {\n    var _type = 'sortedPlaylistReps';\n\n    if (leastPixelDiffRep) {\n      _type = 'leastPixelDiffRep';\n    } else if (resolutionPlusOneRep) {\n      _type = 'resolutionPlusOneRep';\n    } else if (resolutionBestRep) {\n      _type = 'resolutionBestRep';\n    } else if (bandwidthBestRep) {\n      _type = 'bandwidthBestRep';\n    } else if (enabledPlaylistReps[0]) {\n      _type = 'enabledPlaylistReps';\n    }\n\n    logFn(\"choosing \" + representationToString(chosenRep) + \" using \" + _type + \" with options\", options);\n    return chosenRep.playlist;\n  }\n\n  logFn('could not choose a playlist with options', options);\n  return null;\n};\n/**\n * Chooses the appropriate media playlist based on the most recent\n * bandwidth estimate and the player size.\n *\n * Expects to be called within the context of an instance of VhsHandler\n *\n * @return {Playlist} the highest bitrate playlist less than the\n * currently detected bandwidth, accounting for some amount of\n * bandwidth variance\n */\n\n\nvar lastBandwidthSelector = function lastBandwidthSelector() {\n  var pixelRatio = this.useDevicePixelRatio ? window.devicePixelRatio || 1 : 1;\n  return simpleSelector(this.playlists.master, this.systemBandwidth, parseInt(safeGetComputedStyle(this.tech_.el(), 'width'), 10) * pixelRatio, parseInt(safeGetComputedStyle(this.tech_.el(), 'height'), 10) * pixelRatio, this.limitRenditionByPlayerDimensions, this.masterPlaylistController_);\n};\n/**\n * Chooses the appropriate media playlist based on an\n * exponential-weighted moving average of the bandwidth after\n * filtering for player size.\n *\n * Expects to be called within the context of an instance of VhsHandler\n *\n * @param {number} decay - a number between 0 and 1. Higher values of\n * this parameter will cause previous bandwidth estimates to lose\n * significance more quickly.\n * @return {Function} a function which can be invoked to create a new\n * playlist selector function.\n * @see https://en.wikipedia.org/wiki/Moving_average#Exponential_moving_average\n */\n\n\nvar movingAverageBandwidthSelector = function movingAverageBandwidthSelector(decay) {\n  var average = -1;\n  var lastSystemBandwidth = -1;\n\n  if (decay < 0 || decay > 1) {\n    throw new Error('Moving average bandwidth decay must be between 0 and 1.');\n  }\n\n  return function () {\n    var pixelRatio = this.useDevicePixelRatio ? window.devicePixelRatio || 1 : 1;\n\n    if (average < 0) {\n      average = this.systemBandwidth;\n      lastSystemBandwidth = this.systemBandwidth;\n    } // stop the average value from decaying for every 250ms\n    // when the systemBandwidth is constant\n    // and\n    // stop average from setting to a very low value when the\n    // systemBandwidth becomes 0 in case of chunk cancellation\n\n\n    if (this.systemBandwidth > 0 && this.systemBandwidth !== lastSystemBandwidth) {\n      average = decay * this.systemBandwidth + (1 - decay) * average;\n      lastSystemBandwidth = this.systemBandwidth;\n    }\n\n    return simpleSelector(this.playlists.master, average, parseInt(safeGetComputedStyle(this.tech_.el(), 'width'), 10) * pixelRatio, parseInt(safeGetComputedStyle(this.tech_.el(), 'height'), 10) * pixelRatio, this.limitRenditionByPlayerDimensions, this.masterPlaylistController_);\n  };\n};\n/**\n * Chooses the appropriate media playlist based on the potential to rebuffer\n *\n * @param {Object} settings\n *        Object of information required to use this selector\n * @param {Object} settings.master\n *        Object representation of the master manifest\n * @param {number} settings.currentTime\n *        The current time of the player\n * @param {number} settings.bandwidth\n *        Current measured bandwidth\n * @param {number} settings.duration\n *        Duration of the media\n * @param {number} settings.segmentDuration\n *        Segment duration to be used in round trip time calculations\n * @param {number} settings.timeUntilRebuffer\n *        Time left in seconds until the player has to rebuffer\n * @param {number} settings.currentTimeline\n *        The current timeline segments are being loaded from\n * @param {SyncController} settings.syncController\n *        SyncController for determining if we have a sync point for a given playlist\n * @return {Object|null}\n *         {Object} return.playlist\n *         The highest bandwidth playlist with the least amount of rebuffering\n *         {Number} return.rebufferingImpact\n *         The amount of time in seconds switching to this playlist will rebuffer. A\n *         negative value means that switching will cause zero rebuffering.\n */\n\n\nvar minRebufferMaxBandwidthSelector = function minRebufferMaxBandwidthSelector(settings) {\n  var master = settings.master,\n      currentTime = settings.currentTime,\n      bandwidth = settings.bandwidth,\n      duration = settings.duration,\n      segmentDuration = settings.segmentDuration,\n      timeUntilRebuffer = settings.timeUntilRebuffer,\n      currentTimeline = settings.currentTimeline,\n      syncController = settings.syncController; // filter out any playlists that have been excluded due to\n  // incompatible configurations\n\n  var compatiblePlaylists = master.playlists.filter(function (playlist) {\n    return !Playlist.isIncompatible(playlist);\n  }); // filter out any playlists that have been disabled manually through the representations\n  // api or blacklisted temporarily due to playback errors.\n\n  var enabledPlaylists = compatiblePlaylists.filter(Playlist.isEnabled);\n\n  if (!enabledPlaylists.length) {\n    // if there are no enabled playlists, then they have all been blacklisted or disabled\n    // by the user through the representations api. In this case, ignore blacklisting and\n    // fallback to what the user wants by using playlists the user has not disabled.\n    enabledPlaylists = compatiblePlaylists.filter(function (playlist) {\n      return !Playlist.isDisabled(playlist);\n    });\n  }\n\n  var bandwidthPlaylists = enabledPlaylists.filter(Playlist.hasAttribute.bind(null, 'BANDWIDTH'));\n  var rebufferingEstimates = bandwidthPlaylists.map(function (playlist) {\n    var syncPoint = syncController.getSyncPoint(playlist, duration, currentTimeline, currentTime); // If there is no sync point for this playlist, switching to it will require a\n    // sync request first. This will double the request time\n\n    var numRequests = syncPoint ? 1 : 2;\n    var requestTimeEstimate = Playlist.estimateSegmentRequestTime(segmentDuration, bandwidth, playlist);\n    var rebufferingImpact = requestTimeEstimate * numRequests - timeUntilRebuffer;\n    return {\n      playlist: playlist,\n      rebufferingImpact: rebufferingImpact\n    };\n  });\n  var noRebufferingPlaylists = rebufferingEstimates.filter(function (estimate) {\n    return estimate.rebufferingImpact <= 0;\n  }); // Sort by bandwidth DESC\n\n  stableSort(noRebufferingPlaylists, function (a, b) {\n    return comparePlaylistBandwidth(b.playlist, a.playlist);\n  });\n\n  if (noRebufferingPlaylists.length) {\n    return noRebufferingPlaylists[0];\n  }\n\n  stableSort(rebufferingEstimates, function (a, b) {\n    return a.rebufferingImpact - b.rebufferingImpact;\n  });\n  return rebufferingEstimates[0] || null;\n};\n/**\n * Chooses the appropriate media playlist, which in this case is the lowest bitrate\n * one with video.  If no renditions with video exist, return the lowest audio rendition.\n *\n * Expects to be called within the context of an instance of VhsHandler\n *\n * @return {Object|null}\n *         {Object} return.playlist\n *         The lowest bitrate playlist that contains a video codec.  If no such rendition\n *         exists pick the lowest audio rendition.\n */\n\n\nvar lowestBitrateCompatibleVariantSelector = function lowestBitrateCompatibleVariantSelector() {\n  var _this = this; // filter out any playlists that have been excluded due to\n  // incompatible configurations or playback errors\n\n\n  var playlists = this.playlists.master.playlists.filter(Playlist.isEnabled); // Sort ascending by bitrate\n\n  stableSort(playlists, function (a, b) {\n    return comparePlaylistBandwidth(a, b);\n  }); // Parse and assume that playlists with no video codec have no video\n  // (this is not necessarily true, although it is generally true).\n  //\n  // If an entire manifest has no valid videos everything will get filtered\n  // out.\n\n  var playlistsWithVideo = playlists.filter(function (playlist) {\n    return !!codecsForPlaylist(_this.playlists.master, playlist).video;\n  });\n  return playlistsWithVideo[0] || null;\n};\n/**\n * Combine all segments into a single Uint8Array\n *\n * @param {Object} segmentObj\n * @return {Uint8Array} concatenated bytes\n * @private\n */\n\n\nvar concatSegments = function concatSegments(segmentObj) {\n  var offset = 0;\n  var tempBuffer;\n\n  if (segmentObj.bytes) {\n    tempBuffer = new Uint8Array(segmentObj.bytes); // combine the individual segments into one large typed-array\n\n    segmentObj.segments.forEach(function (segment) {\n      tempBuffer.set(segment, offset);\n      offset += segment.byteLength;\n    });\n  }\n\n  return tempBuffer;\n};\n/**\n * @file text-tracks.js\n */\n\n/**\n * Create captions text tracks on video.js if they do not exist\n *\n * @param {Object} inbandTextTracks a reference to current inbandTextTracks\n * @param {Object} tech the video.js tech\n * @param {Object} captionStream the caption stream to create\n * @private\n */\n\n\nvar createCaptionsTrackIfNotExists = function createCaptionsTrackIfNotExists(inbandTextTracks, tech, captionStream) {\n  if (!inbandTextTracks[captionStream]) {\n    tech.trigger({\n      type: 'usage',\n      name: 'vhs-608'\n    });\n    tech.trigger({\n      type: 'usage',\n      name: 'hls-608'\n    });\n    var instreamId = captionStream; // we need to translate SERVICEn for 708 to how mux.js currently labels them\n\n    if (/^cc708_/.test(captionStream)) {\n      instreamId = 'SERVICE' + captionStream.split('_')[1];\n    }\n\n    var track = tech.textTracks().getTrackById(instreamId);\n\n    if (track) {\n      // Resuse an existing track with a CC# id because this was\n      // very likely created by videojs-contrib-hls from information\n      // in the m3u8 for us to use\n      inbandTextTracks[captionStream] = track;\n    } else {\n      // This section gets called when we have caption services that aren't specified in the manifest.\n      // Manifest level caption services are handled in media-groups.js under CLOSED-CAPTIONS.\n      var captionServices = tech.options_.vhs && tech.options_.vhs.captionServices || {};\n      var label = captionStream;\n      var language = captionStream;\n      var def = false;\n      var captionService = captionServices[instreamId];\n\n      if (captionService) {\n        label = captionService.label;\n        language = captionService.language;\n        def = captionService[\"default\"];\n      } // Otherwise, create a track with the default `CC#` label and\n      // without a language\n\n\n      inbandTextTracks[captionStream] = tech.addRemoteTextTrack({\n        kind: 'captions',\n        id: instreamId,\n        // TODO: investigate why this doesn't seem to turn the caption on by default\n        \"default\": def,\n        label: label,\n        language: language\n      }, false).track;\n    }\n  }\n};\n/**\n * Add caption text track data to a source handler given an array of captions\n *\n * @param {Object}\n *   @param {Object} inbandTextTracks the inband text tracks\n *   @param {number} timestampOffset the timestamp offset of the source buffer\n *   @param {Array} captionArray an array of caption data\n * @private\n */\n\n\nvar addCaptionData = function addCaptionData(_ref) {\n  var inbandTextTracks = _ref.inbandTextTracks,\n      captionArray = _ref.captionArray,\n      timestampOffset = _ref.timestampOffset;\n\n  if (!captionArray) {\n    return;\n  }\n\n  var Cue = window.WebKitDataCue || window.VTTCue;\n  captionArray.forEach(function (caption) {\n    var track = caption.stream;\n    inbandTextTracks[track].addCue(new Cue(caption.startTime + timestampOffset, caption.endTime + timestampOffset, caption.text));\n  });\n};\n/**\n * Define properties on a cue for backwards compatability,\n * but warn the user that the way that they are using it\n * is depricated and will be removed at a later date.\n *\n * @param {Cue} cue the cue to add the properties on\n * @private\n */\n\n\nvar deprecateOldCue = function deprecateOldCue(cue) {\n  Object.defineProperties(cue.frame, {\n    id: {\n      get: function get() {\n        videojs.log.warn('cue.frame.id is deprecated. Use cue.value.key instead.');\n        return cue.value.key;\n      }\n    },\n    value: {\n      get: function get() {\n        videojs.log.warn('cue.frame.value is deprecated. Use cue.value.data instead.');\n        return cue.value.data;\n      }\n    },\n    privateData: {\n      get: function get() {\n        videojs.log.warn('cue.frame.privateData is deprecated. Use cue.value.data instead.');\n        return cue.value.data;\n      }\n    }\n  });\n};\n/**\n * Add metadata text track data to a source handler given an array of metadata\n *\n * @param {Object}\n *   @param {Object} inbandTextTracks the inband text tracks\n *   @param {Array} metadataArray an array of meta data\n *   @param {number} timestampOffset the timestamp offset of the source buffer\n *   @param {number} videoDuration the duration of the video\n * @private\n */\n\n\nvar addMetadata = function addMetadata(_ref2) {\n  var inbandTextTracks = _ref2.inbandTextTracks,\n      metadataArray = _ref2.metadataArray,\n      timestampOffset = _ref2.timestampOffset,\n      videoDuration = _ref2.videoDuration;\n\n  if (!metadataArray) {\n    return;\n  }\n\n  var Cue = window.WebKitDataCue || window.VTTCue;\n  var metadataTrack = inbandTextTracks.metadataTrack_;\n\n  if (!metadataTrack) {\n    return;\n  }\n\n  metadataArray.forEach(function (metadata) {\n    var time = metadata.cueTime + timestampOffset; // if time isn't a finite number between 0 and Infinity, like NaN,\n    // ignore this bit of metadata.\n    // This likely occurs when you have an non-timed ID3 tag like TIT2,\n    // which is the \"Title/Songname/Content description\" frame\n\n    if (typeof time !== 'number' || window.isNaN(time) || time < 0 || !(time < Infinity)) {\n      return;\n    }\n\n    metadata.frames.forEach(function (frame) {\n      var cue = new Cue(time, time, frame.value || frame.url || frame.data || '');\n      cue.frame = frame;\n      cue.value = frame;\n      deprecateOldCue(cue);\n      metadataTrack.addCue(cue);\n    });\n  });\n\n  if (!metadataTrack.cues || !metadataTrack.cues.length) {\n    return;\n  } // Updating the metadeta cues so that\n  // the endTime of each cue is the startTime of the next cue\n  // the endTime of last cue is the duration of the video\n\n\n  var cues = metadataTrack.cues;\n  var cuesArray = []; // Create a copy of the TextTrackCueList...\n  // ...disregarding cues with a falsey value\n\n  for (var i = 0; i < cues.length; i++) {\n    if (cues[i]) {\n      cuesArray.push(cues[i]);\n    }\n  } // Group cues by their startTime value\n\n\n  var cuesGroupedByStartTime = cuesArray.reduce(function (obj, cue) {\n    var timeSlot = obj[cue.startTime] || [];\n    timeSlot.push(cue);\n    obj[cue.startTime] = timeSlot;\n    return obj;\n  }, {}); // Sort startTimes by ascending order\n\n  var sortedStartTimes = Object.keys(cuesGroupedByStartTime).sort(function (a, b) {\n    return Number(a) - Number(b);\n  }); // Map each cue group's endTime to the next group's startTime\n\n  sortedStartTimes.forEach(function (startTime, idx) {\n    var cueGroup = cuesGroupedByStartTime[startTime];\n    var nextTime = Number(sortedStartTimes[idx + 1]) || videoDuration; // Map each cue's endTime the next group's startTime\n\n    cueGroup.forEach(function (cue) {\n      cue.endTime = nextTime;\n    });\n  });\n};\n/**\n * Create metadata text track on video.js if it does not exist\n *\n * @param {Object} inbandTextTracks a reference to current inbandTextTracks\n * @param {string} dispatchType the inband metadata track dispatch type\n * @param {Object} tech the video.js tech\n * @private\n */\n\n\nvar createMetadataTrackIfNotExists = function createMetadataTrackIfNotExists(inbandTextTracks, dispatchType, tech) {\n  if (inbandTextTracks.metadataTrack_) {\n    return;\n  }\n\n  inbandTextTracks.metadataTrack_ = tech.addRemoteTextTrack({\n    kind: 'metadata',\n    label: 'Timed Metadata'\n  }, false).track;\n  inbandTextTracks.metadataTrack_.inBandMetadataTrackDispatchType = dispatchType;\n};\n/**\n * Remove cues from a track on video.js.\n *\n * @param {Double} start start of where we should remove the cue\n * @param {Double} end end of where the we should remove the cue\n * @param {Object} track the text track to remove the cues from\n * @private\n */\n\n\nvar removeCuesFromTrack = function removeCuesFromTrack(start, end, track) {\n  var i;\n  var cue;\n\n  if (!track) {\n    return;\n  }\n\n  if (!track.cues) {\n    return;\n  }\n\n  i = track.cues.length;\n\n  while (i--) {\n    cue = track.cues[i]; // Remove any cue within the provided start and end time\n\n    if (cue.startTime >= start && cue.endTime <= end) {\n      track.removeCue(cue);\n    }\n  }\n};\n/**\n * Remove duplicate cues from a track on video.js (a cue is considered a\n * duplicate if it has the same time interval and text as another)\n *\n * @param {Object} track the text track to remove the duplicate cues from\n * @private\n */\n\n\nvar removeDuplicateCuesFromTrack = function removeDuplicateCuesFromTrack(track) {\n  var cues = track.cues;\n\n  if (!cues) {\n    return;\n  }\n\n  for (var i = 0; i < cues.length; i++) {\n    var duplicates = [];\n    var occurrences = 0;\n\n    for (var j = 0; j < cues.length; j++) {\n      if (cues[i].startTime === cues[j].startTime && cues[i].endTime === cues[j].endTime && cues[i].text === cues[j].text) {\n        occurrences++;\n\n        if (occurrences > 1) {\n          duplicates.push(cues[j]);\n        }\n      }\n    }\n\n    if (duplicates.length) {\n      duplicates.forEach(function (dupe) {\n        return track.removeCue(dupe);\n      });\n    }\n  }\n};\n/**\n * Returns a list of gops in the buffer that have a pts value of 3 seconds or more in\n * front of current time.\n *\n * @param {Array} buffer\n *        The current buffer of gop information\n * @param {number} currentTime\n *        The current time\n * @param {Double} mapping\n *        Offset to map display time to stream presentation time\n * @return {Array}\n *         List of gops considered safe to append over\n */\n\n\nvar gopsSafeToAlignWith = function gopsSafeToAlignWith(buffer, currentTime, mapping) {\n  if (typeof currentTime === 'undefined' || currentTime === null || !buffer.length) {\n    return [];\n  } // pts value for current time + 3 seconds to give a bit more wiggle room\n\n\n  var currentTimePts = Math.ceil((currentTime - mapping + 3) * ONE_SECOND_IN_TS);\n  var i;\n\n  for (i = 0; i < buffer.length; i++) {\n    if (buffer[i].pts > currentTimePts) {\n      break;\n    }\n  }\n\n  return buffer.slice(i);\n};\n/**\n * Appends gop information (timing and byteLength) received by the transmuxer for the\n * gops appended in the last call to appendBuffer\n *\n * @param {Array} buffer\n *        The current buffer of gop information\n * @param {Array} gops\n *        List of new gop information\n * @param {boolean} replace\n *        If true, replace the buffer with the new gop information. If false, append the\n *        new gop information to the buffer in the right location of time.\n * @return {Array}\n *         Updated list of gop information\n */\n\n\nvar updateGopBuffer = function updateGopBuffer(buffer, gops, replace) {\n  if (!gops.length) {\n    return buffer;\n  }\n\n  if (replace) {\n    // If we are in safe append mode, then completely overwrite the gop buffer\n    // with the most recent appeneded data. This will make sure that when appending\n    // future segments, we only try to align with gops that are both ahead of current\n    // time and in the last segment appended.\n    return gops.slice();\n  }\n\n  var start = gops[0].pts;\n  var i = 0;\n\n  for (i; i < buffer.length; i++) {\n    if (buffer[i].pts >= start) {\n      break;\n    }\n  }\n\n  return buffer.slice(0, i).concat(gops);\n};\n/**\n * Removes gop information in buffer that overlaps with provided start and end\n *\n * @param {Array} buffer\n *        The current buffer of gop information\n * @param {Double} start\n *        position to start the remove at\n * @param {Double} end\n *        position to end the remove at\n * @param {Double} mapping\n *        Offset to map display time to stream presentation time\n */\n\n\nvar removeGopBuffer = function removeGopBuffer(buffer, start, end, mapping) {\n  var startPts = Math.ceil((start - mapping) * ONE_SECOND_IN_TS);\n  var endPts = Math.ceil((end - mapping) * ONE_SECOND_IN_TS);\n  var updatedBuffer = buffer.slice();\n  var i = buffer.length;\n\n  while (i--) {\n    if (buffer[i].pts <= endPts) {\n      break;\n    }\n  }\n\n  if (i === -1) {\n    // no removal because end of remove range is before start of buffer\n    return updatedBuffer;\n  }\n\n  var j = i + 1;\n\n  while (j--) {\n    if (buffer[j].pts <= startPts) {\n      break;\n    }\n  } // clamp remove range start to 0 index\n\n\n  j = Math.max(j, 0);\n  updatedBuffer.splice(j, i - j + 1);\n  return updatedBuffer;\n};\n\nvar shallowEqual = function shallowEqual(a, b) {\n  // if both are undefined\n  // or one or the other is undefined\n  // they are not equal\n  if (!a && !b || !a && b || a && !b) {\n    return false;\n  } // they are the same object and thus, equal\n\n\n  if (a === b) {\n    return true;\n  } // sort keys so we can make sure they have\n  // all the same keys later.\n\n\n  var akeys = Object.keys(a).sort();\n  var bkeys = Object.keys(b).sort(); // different number of keys, not equal\n\n  if (akeys.length !== bkeys.length) {\n    return false;\n  }\n\n  for (var i = 0; i < akeys.length; i++) {\n    var key = akeys[i]; // different sorted keys, not equal\n\n    if (key !== bkeys[i]) {\n      return false;\n    } // different values, not equal\n\n\n    if (a[key] !== b[key]) {\n      return false;\n    }\n  }\n\n  return true;\n}; // https://www.w3.org/TR/WebIDL-1/#quotaexceedederror\n\n\nvar QUOTA_EXCEEDED_ERR = 22;\n/**\n * The segment loader has no recourse except to fetch a segment in the\n * current playlist and use the internal timestamps in that segment to\n * generate a syncPoint. This function returns a good candidate index\n * for that process.\n *\n * @param {Array} segments - the segments array from a playlist.\n * @return {number} An index of a segment from the playlist to load\n */\n\nvar getSyncSegmentCandidate = function getSyncSegmentCandidate(currentTimeline, segments, targetTime) {\n  segments = segments || [];\n  var timelineSegments = [];\n  var time = 0;\n\n  for (var i = 0; i < segments.length; i++) {\n    var segment = segments[i];\n\n    if (currentTimeline === segment.timeline) {\n      timelineSegments.push(i);\n      time += segment.duration;\n\n      if (time > targetTime) {\n        return i;\n      }\n    }\n  }\n\n  if (timelineSegments.length === 0) {\n    return 0;\n  } // default to the last timeline segment\n\n\n  return timelineSegments[timelineSegments.length - 1];\n}; // In the event of a quota exceeded error, keep at least one second of back buffer. This\n// number was arbitrarily chosen and may be updated in the future, but seemed reasonable\n// as a start to prevent any potential issues with removing content too close to the\n// playhead.\n\n\nvar MIN_BACK_BUFFER = 1; // in ms\n\nvar CHECK_BUFFER_DELAY = 500;\n\nvar finite = function finite(num) {\n  return typeof num === 'number' && isFinite(num);\n}; // With most content hovering around 30fps, if a segment has a duration less than a half\n// frame at 30fps or one frame at 60fps, the bandwidth and throughput calculations will\n// not accurately reflect the rest of the content.\n\n\nvar MIN_SEGMENT_DURATION_TO_SAVE_STATS = 1 / 60;\n\nvar illegalMediaSwitch = function illegalMediaSwitch(loaderType, startingMedia, trackInfo) {\n  // Although these checks should most likely cover non 'main' types, for now it narrows\n  // the scope of our checks.\n  if (loaderType !== 'main' || !startingMedia || !trackInfo) {\n    return null;\n  }\n\n  if (!trackInfo.hasAudio && !trackInfo.hasVideo) {\n    return 'Neither audio nor video found in segment.';\n  }\n\n  if (startingMedia.hasVideo && !trackInfo.hasVideo) {\n    return 'Only audio found in segment when we expected video.' + ' We can\\'t switch to audio only from a stream that had video.' + ' To get rid of this message, please add codec information to the manifest.';\n  }\n\n  if (!startingMedia.hasVideo && trackInfo.hasVideo) {\n    return 'Video found in segment when we expected only audio.' + ' We can\\'t switch to a stream with video from an audio only stream.' + ' To get rid of this message, please add codec information to the manifest.';\n  }\n\n  return null;\n};\n/**\n * Calculates a time value that is safe to remove from the back buffer without interrupting\n * playback.\n *\n * @param {TimeRange} seekable\n *        The current seekable range\n * @param {number} currentTime\n *        The current time of the player\n * @param {number} targetDuration\n *        The target duration of the current playlist\n * @return {number}\n *         Time that is safe to remove from the back buffer without interrupting playback\n */\n\n\nvar safeBackBufferTrimTime = function safeBackBufferTrimTime(seekable, currentTime, targetDuration) {\n  // 30 seconds before the playhead provides a safe default for trimming.\n  //\n  // Choosing a reasonable default is particularly important for high bitrate content and\n  // VOD videos/live streams with large windows, as the buffer may end up overfilled and\n  // throw an APPEND_BUFFER_ERR.\n  var trimTime = currentTime - Config.BACK_BUFFER_LENGTH;\n\n  if (seekable.length) {\n    // Some live playlists may have a shorter window of content than the full allowed back\n    // buffer. For these playlists, don't save content that's no longer within the window.\n    trimTime = Math.max(trimTime, seekable.start(0));\n  } // Don't remove within target duration of the current time to avoid the possibility of\n  // removing the GOP currently being played, as removing it can cause playback stalls.\n\n\n  var maxTrimTime = currentTime - targetDuration;\n  return Math.min(maxTrimTime, trimTime);\n};\n\nvar segmentInfoString = function segmentInfoString(segmentInfo) {\n  var startOfSegment = segmentInfo.startOfSegment,\n      duration = segmentInfo.duration,\n      segment = segmentInfo.segment,\n      part = segmentInfo.part,\n      _segmentInfo$playlist = segmentInfo.playlist,\n      seq = _segmentInfo$playlist.mediaSequence,\n      id = _segmentInfo$playlist.id,\n      _segmentInfo$playlist2 = _segmentInfo$playlist.segments,\n      segments = _segmentInfo$playlist2 === void 0 ? [] : _segmentInfo$playlist2,\n      index = segmentInfo.mediaIndex,\n      partIndex = segmentInfo.partIndex,\n      timeline = segmentInfo.timeline;\n  var segmentLen = segments.length - 1;\n  var selection = 'mediaIndex/partIndex increment';\n\n  if (segmentInfo.getMediaInfoForTime) {\n    selection = \"getMediaInfoForTime (\" + segmentInfo.getMediaInfoForTime + \")\";\n  } else if (segmentInfo.isSyncRequest) {\n    selection = 'getSyncSegmentCandidate (isSyncRequest)';\n  }\n\n  var hasPartIndex = typeof partIndex === 'number';\n  var name = segmentInfo.segment.uri ? 'segment' : 'pre-segment';\n  var zeroBasedPartCount = hasPartIndex ? getKnownPartCount({\n    preloadSegment: segment\n  }) - 1 : 0;\n  return name + \" [\" + (seq + index) + \"/\" + (seq + segmentLen) + \"]\" + (hasPartIndex ? \" part [\" + partIndex + \"/\" + zeroBasedPartCount + \"]\" : '') + (\" segment start/end [\" + segment.start + \" => \" + segment.end + \"]\") + (hasPartIndex ? \" part start/end [\" + part.start + \" => \" + part.end + \"]\" : '') + (\" startOfSegment [\" + startOfSegment + \"]\") + (\" duration [\" + duration + \"]\") + (\" timeline [\" + timeline + \"]\") + (\" selected by [\" + selection + \"]\") + (\" playlist [\" + id + \"]\");\n};\n\nvar timingInfoPropertyForMedia = function timingInfoPropertyForMedia(mediaType) {\n  return mediaType + \"TimingInfo\";\n};\n/**\n * Returns the timestamp offset to use for the segment.\n *\n * @param {number} segmentTimeline\n *        The timeline of the segment\n * @param {number} currentTimeline\n *        The timeline currently being followed by the loader\n * @param {number} startOfSegment\n *        The estimated segment start\n * @param {TimeRange[]} buffered\n *        The loader's buffer\n * @param {boolean} overrideCheck\n *        If true, no checks are made to see if the timestamp offset value should be set,\n *        but sets it directly to a value.\n *\n * @return {number|null}\n *         Either a number representing a new timestamp offset, or null if the segment is\n *         part of the same timeline\n */\n\n\nvar timestampOffsetForSegment = function timestampOffsetForSegment(_ref) {\n  var segmentTimeline = _ref.segmentTimeline,\n      currentTimeline = _ref.currentTimeline,\n      startOfSegment = _ref.startOfSegment,\n      buffered = _ref.buffered,\n      overrideCheck = _ref.overrideCheck; // Check to see if we are crossing a discontinuity to see if we need to set the\n  // timestamp offset on the transmuxer and source buffer.\n  //\n  // Previously, we changed the timestampOffset if the start of this segment was less than\n  // the currently set timestampOffset, but this isn't desirable as it can produce bad\n  // behavior, especially around long running live streams.\n\n  if (!overrideCheck && segmentTimeline === currentTimeline) {\n    return null;\n  } // When changing renditions, it's possible to request a segment on an older timeline. For\n  // instance, given two renditions with the following:\n  //\n  // #EXTINF:10\n  // segment1\n  // #EXT-X-DISCONTINUITY\n  // #EXTINF:10\n  // segment2\n  // #EXTINF:10\n  // segment3\n  //\n  // And the current player state:\n  //\n  // current time: 8\n  // buffer: 0 => 20\n  //\n  // The next segment on the current rendition would be segment3, filling the buffer from\n  // 20s onwards. However, if a rendition switch happens after segment2 was requested,\n  // then the next segment to be requested will be segment1 from the new rendition in\n  // order to fill time 8 and onwards. Using the buffered end would result in repeated\n  // content (since it would position segment1 of the new rendition starting at 20s). This\n  // case can be identified when the new segment's timeline is a prior value. Instead of\n  // using the buffered end, the startOfSegment can be used, which, hopefully, will be\n  // more accurate to the actual start time of the segment.\n\n\n  if (segmentTimeline < currentTimeline) {\n    return startOfSegment;\n  } // segmentInfo.startOfSegment used to be used as the timestamp offset, however, that\n  // value uses the end of the last segment if it is available. While this value\n  // should often be correct, it's better to rely on the buffered end, as the new\n  // content post discontinuity should line up with the buffered end as if it were\n  // time 0 for the new content.\n\n\n  return buffered.length ? buffered.end(buffered.length - 1) : startOfSegment;\n};\n/**\n * Returns whether or not the loader should wait for a timeline change from the timeline\n * change controller before processing the segment.\n *\n * Primary timing in VHS goes by video. This is different from most media players, as\n * audio is more often used as the primary timing source. For the foreseeable future, VHS\n * will continue to use video as the primary timing source, due to the current logic and\n * expectations built around it.\n\n * Since the timing follows video, in order to maintain sync, the video loader is\n * responsible for setting both audio and video source buffer timestamp offsets.\n *\n * Setting different values for audio and video source buffers could lead to\n * desyncing. The following examples demonstrate some of the situations where this\n * distinction is important. Note that all of these cases involve demuxed content. When\n * content is muxed, the audio and video are packaged together, therefore syncing\n * separate media playlists is not an issue.\n *\n * CASE 1: Audio prepares to load a new timeline before video:\n *\n * Timeline:       0                 1\n * Audio Segments: 0 1 2 3 4 5 DISCO 6 7 8 9\n * Audio Loader:                     ^\n * Video Segments: 0 1 2 3 4 5 DISCO 6 7 8 9\n * Video Loader              ^\n *\n * In the above example, the audio loader is preparing to load the 6th segment, the first\n * after a discontinuity, while the video loader is still loading the 5th segment, before\n * the discontinuity.\n *\n * If the audio loader goes ahead and loads and appends the 6th segment before the video\n * loader crosses the discontinuity, then when appended, the 6th audio segment will use\n * the timestamp offset from timeline 0. This will likely lead to desyncing. In addition,\n * the audio loader must provide the audioAppendStart value to trim the content in the\n * transmuxer, and that value relies on the audio timestamp offset. Since the audio\n * timestamp offset is set by the video (main) loader, the audio loader shouldn't load the\n * segment until that value is provided.\n *\n * CASE 2: Video prepares to load a new timeline before audio:\n *\n * Timeline:       0                 1\n * Audio Segments: 0 1 2 3 4 5 DISCO 6 7 8 9\n * Audio Loader:             ^\n * Video Segments: 0 1 2 3 4 5 DISCO 6 7 8 9\n * Video Loader                      ^\n *\n * In the above example, the video loader is preparing to load the 6th segment, the first\n * after a discontinuity, while the audio loader is still loading the 5th segment, before\n * the discontinuity.\n *\n * If the video loader goes ahead and loads and appends the 6th segment, then once the\n * segment is loaded and processed, both the video and audio timestamp offsets will be\n * set, since video is used as the primary timing source. This is to ensure content lines\n * up appropriately, as any modifications to the video timing are reflected by audio when\n * the video loader sets the audio and video timestamp offsets to the same value. However,\n * setting the timestamp offset for audio before audio has had a chance to change\n * timelines will likely lead to desyncing, as the audio loader will append segment 5 with\n * a timestamp intended to apply to segments from timeline 1 rather than timeline 0.\n *\n * CASE 3: When seeking, audio prepares to load a new timeline before video\n *\n * Timeline:       0                 1\n * Audio Segments: 0 1 2 3 4 5 DISCO 6 7 8 9\n * Audio Loader:           ^\n * Video Segments: 0 1 2 3 4 5 DISCO 6 7 8 9\n * Video Loader            ^\n *\n * In the above example, both audio and video loaders are loading segments from timeline\n * 0, but imagine that the seek originated from timeline 1.\n *\n * When seeking to a new timeline, the timestamp offset will be set based on the expected\n * segment start of the loaded video segment. In order to maintain sync, the audio loader\n * must wait for the video loader to load its segment and update both the audio and video\n * timestamp offsets before it may load and append its own segment. This is the case\n * whether the seek results in a mismatched segment request (e.g., the audio loader\n * chooses to load segment 3 and the video loader chooses to load segment 4) or the\n * loaders choose to load the same segment index from each playlist, as the segments may\n * not be aligned perfectly, even for matching segment indexes.\n *\n * @param {Object} timelinechangeController\n * @param {number} currentTimeline\n *        The timeline currently being followed by the loader\n * @param {number} segmentTimeline\n *        The timeline of the segment being loaded\n * @param {('main'|'audio')} loaderType\n *        The loader type\n * @param {boolean} audioDisabled\n *        Whether the audio is disabled for the loader. This should only be true when the\n *        loader may have muxed audio in its segment, but should not append it, e.g., for\n *        the main loader when an alternate audio playlist is active.\n *\n * @return {boolean}\n *         Whether the loader should wait for a timeline change from the timeline change\n *         controller before processing the segment\n */\n\n\nvar shouldWaitForTimelineChange = function shouldWaitForTimelineChange(_ref2) {\n  var timelineChangeController = _ref2.timelineChangeController,\n      currentTimeline = _ref2.currentTimeline,\n      segmentTimeline = _ref2.segmentTimeline,\n      loaderType = _ref2.loaderType,\n      audioDisabled = _ref2.audioDisabled;\n\n  if (currentTimeline === segmentTimeline) {\n    return false;\n  }\n\n  if (loaderType === 'audio') {\n    var lastMainTimelineChange = timelineChangeController.lastTimelineChange({\n      type: 'main'\n    }); // Audio loader should wait if:\n    //\n    // * main hasn't had a timeline change yet (thus has not loaded its first segment)\n    // * main hasn't yet changed to the timeline audio is looking to load\n\n    return !lastMainTimelineChange || lastMainTimelineChange.to !== segmentTimeline;\n  } // The main loader only needs to wait for timeline changes if there's demuxed audio.\n  // Otherwise, there's nothing to wait for, since audio would be muxed into the main\n  // loader's segments (or the content is audio/video only and handled by the main\n  // loader).\n\n\n  if (loaderType === 'main' && audioDisabled) {\n    var pendingAudioTimelineChange = timelineChangeController.pendingTimelineChange({\n      type: 'audio'\n    }); // Main loader should wait for the audio loader if audio is not pending a timeline\n    // change to the current timeline.\n    //\n    // Since the main loader is responsible for setting the timestamp offset for both\n    // audio and video, the main loader must wait for audio to be about to change to its\n    // timeline before setting the offset, otherwise, if audio is behind in loading,\n    // segments from the previous timeline would be adjusted by the new timestamp offset.\n    //\n    // This requirement means that video will not cross a timeline until the audio is\n    // about to cross to it, so that way audio and video will always cross the timeline\n    // together.\n    //\n    // In addition to normal timeline changes, these rules also apply to the start of a\n    // stream (going from a non-existent timeline, -1, to timeline 0). It's important\n    // that these rules apply to the first timeline change because if they did not, it's\n    // possible that the main loader will cross two timelines before the audio loader has\n    // crossed one. Logic may be implemented to handle the startup as a special case, but\n    // it's easier to simply treat all timeline changes the same.\n\n    if (pendingAudioTimelineChange && pendingAudioTimelineChange.to === segmentTimeline) {\n      return false;\n    }\n\n    return true;\n  }\n\n  return false;\n};\n\nvar mediaDuration = function mediaDuration(audioTimingInfo, videoTimingInfo) {\n  var audioDuration = audioTimingInfo && typeof audioTimingInfo.start === 'number' && typeof audioTimingInfo.end === 'number' ? audioTimingInfo.end - audioTimingInfo.start : 0;\n  var videoDuration = videoTimingInfo && typeof videoTimingInfo.start === 'number' && typeof videoTimingInfo.end === 'number' ? videoTimingInfo.end - videoTimingInfo.start : 0;\n  return Math.max(audioDuration, videoDuration);\n};\n\nvar segmentTooLong = function segmentTooLong(_ref3) {\n  var segmentDuration = _ref3.segmentDuration,\n      maxDuration = _ref3.maxDuration; // 0 duration segments are most likely due to metadata only segments or a lack of\n  // information.\n\n  if (!segmentDuration) {\n    return false;\n  } // For HLS:\n  //\n  // https://tools.ietf.org/html/draft-pantos-http-live-streaming-23#section-4.3.3.1\n  // The EXTINF duration of each Media Segment in the Playlist\n  // file, when rounded to the nearest integer, MUST be less than or equal\n  // to the target duration; longer segments can trigger playback stalls\n  // or other errors.\n  //\n  // For DASH, the mpd-parser uses the largest reported segment duration as the target\n  // duration. Although that reported duration is occasionally approximate (i.e., not\n  // exact), a strict check may report that a segment is too long more often in DASH.\n\n\n  return Math.round(segmentDuration) > maxDuration + TIME_FUDGE_FACTOR;\n};\n\nvar getTroublesomeSegmentDurationMessage = function getTroublesomeSegmentDurationMessage(segmentInfo, sourceType) {\n  // Right now we aren't following DASH's timing model exactly, so only perform\n  // this check for HLS content.\n  if (sourceType !== 'hls') {\n    return null;\n  }\n\n  var segmentDuration = mediaDuration(segmentInfo.audioTimingInfo, segmentInfo.videoTimingInfo); // Don't report if we lack information.\n  //\n  // If the segment has a duration of 0 it is either a lack of information or a\n  // metadata only segment and shouldn't be reported here.\n\n  if (!segmentDuration) {\n    return null;\n  }\n\n  var targetDuration = segmentInfo.playlist.targetDuration;\n  var isSegmentWayTooLong = segmentTooLong({\n    segmentDuration: segmentDuration,\n    maxDuration: targetDuration * 2\n  });\n  var isSegmentSlightlyTooLong = segmentTooLong({\n    segmentDuration: segmentDuration,\n    maxDuration: targetDuration\n  });\n  var segmentTooLongMessage = \"Segment with index \" + segmentInfo.mediaIndex + \" \" + (\"from playlist \" + segmentInfo.playlist.id + \" \") + (\"has a duration of \" + segmentDuration + \" \") + (\"when the reported duration is \" + segmentInfo.duration + \" \") + (\"and the target duration is \" + targetDuration + \". \") + 'For HLS content, a duration in excess of the target duration may result in ' + 'playback issues. See the HLS specification section on EXT-X-TARGETDURATION for ' + 'more details: ' + 'https://tools.ietf.org/html/draft-pantos-http-live-streaming-23#section-4.3.3.1';\n\n  if (isSegmentWayTooLong || isSegmentSlightlyTooLong) {\n    return {\n      severity: isSegmentWayTooLong ? 'warn' : 'info',\n      message: segmentTooLongMessage\n    };\n  }\n\n  return null;\n};\n/**\n * An object that manages segment loading and appending.\n *\n * @class SegmentLoader\n * @param {Object} options required and optional options\n * @extends videojs.EventTarget\n */\n\n\nvar SegmentLoader = /*#__PURE__*/function (_videojs$EventTarget) {\n  _inheritsLoose(SegmentLoader, _videojs$EventTarget);\n\n  function SegmentLoader(settings, options) {\n    var _this;\n\n    _this = _videojs$EventTarget.call(this) || this; // check pre-conditions\n\n    if (!settings) {\n      throw new TypeError('Initialization settings are required');\n    }\n\n    if (typeof settings.currentTime !== 'function') {\n      throw new TypeError('No currentTime getter specified');\n    }\n\n    if (!settings.mediaSource) {\n      throw new TypeError('No MediaSource specified');\n    } // public properties\n\n\n    _this.bandwidth = settings.bandwidth;\n    _this.throughput = {\n      rate: 0,\n      count: 0\n    };\n    _this.roundTrip = NaN;\n\n    _this.resetStats_();\n\n    _this.mediaIndex = null;\n    _this.partIndex = null; // private settings\n\n    _this.hasPlayed_ = settings.hasPlayed;\n    _this.currentTime_ = settings.currentTime;\n    _this.seekable_ = settings.seekable;\n    _this.seeking_ = settings.seeking;\n    _this.duration_ = settings.duration;\n    _this.mediaSource_ = settings.mediaSource;\n    _this.vhs_ = settings.vhs;\n    _this.loaderType_ = settings.loaderType;\n    _this.currentMediaInfo_ = void 0;\n    _this.startingMediaInfo_ = void 0;\n    _this.segmentMetadataTrack_ = settings.segmentMetadataTrack;\n    _this.goalBufferLength_ = settings.goalBufferLength;\n    _this.sourceType_ = settings.sourceType;\n    _this.sourceUpdater_ = settings.sourceUpdater;\n    _this.inbandTextTracks_ = settings.inbandTextTracks;\n    _this.state_ = 'INIT';\n    _this.timelineChangeController_ = settings.timelineChangeController;\n    _this.shouldSaveSegmentTimingInfo_ = true;\n    _this.parse708captions_ = settings.parse708captions;\n    _this.experimentalExactManifestTimings = settings.experimentalExactManifestTimings; // private instance variables\n\n    _this.checkBufferTimeout_ = null;\n    _this.error_ = void 0;\n    _this.currentTimeline_ = -1;\n    _this.pendingSegment_ = null;\n    _this.xhrOptions_ = null;\n    _this.pendingSegments_ = [];\n    _this.audioDisabled_ = false;\n    _this.isPendingTimestampOffset_ = false; // TODO possibly move gopBuffer and timeMapping info to a separate controller\n\n    _this.gopBuffer_ = [];\n    _this.timeMapping_ = 0;\n    _this.safeAppend_ = videojs.browser.IE_VERSION >= 11;\n    _this.appendInitSegment_ = {\n      audio: true,\n      video: true\n    };\n    _this.playlistOfLastInitSegment_ = {\n      audio: null,\n      video: null\n    };\n    _this.callQueue_ = []; // If the segment loader prepares to load a segment, but does not have enough\n    // information yet to start the loading process (e.g., if the audio loader wants to\n    // load a segment from the next timeline but the main loader hasn't yet crossed that\n    // timeline), then the load call will be added to the queue until it is ready to be\n    // processed.\n\n    _this.loadQueue_ = [];\n    _this.metadataQueue_ = {\n      id3: [],\n      caption: []\n    };\n    _this.waitingOnRemove_ = false;\n    _this.quotaExceededErrorRetryTimeout_ = null; // Fragmented mp4 playback\n\n    _this.activeInitSegmentId_ = null;\n    _this.initSegments_ = {}; // HLSe playback\n\n    _this.cacheEncryptionKeys_ = settings.cacheEncryptionKeys;\n    _this.keyCache_ = {};\n    _this.decrypter_ = settings.decrypter; // Manages the tracking and generation of sync-points, mappings\n    // between a time in the display time and a segment index within\n    // a playlist\n\n    _this.syncController_ = settings.syncController;\n    _this.syncPoint_ = {\n      segmentIndex: 0,\n      time: 0\n    };\n    _this.transmuxer_ = _this.createTransmuxer_();\n\n    _this.triggerSyncInfoUpdate_ = function () {\n      return _this.trigger('syncinfoupdate');\n    };\n\n    _this.syncController_.on('syncinfoupdate', _this.triggerSyncInfoUpdate_);\n\n    _this.mediaSource_.addEventListener('sourceopen', function () {\n      if (!_this.isEndOfStream_()) {\n        _this.ended_ = false;\n      }\n    }); // ...for determining the fetch location\n\n\n    _this.fetchAtBuffer_ = false;\n    _this.logger_ = logger(\"SegmentLoader[\" + _this.loaderType_ + \"]\");\n    Object.defineProperty(_assertThisInitialized(_this), 'state', {\n      get: function get() {\n        return this.state_;\n      },\n      set: function set(newState) {\n        if (newState !== this.state_) {\n          this.logger_(this.state_ + \" -> \" + newState);\n          this.state_ = newState;\n          this.trigger('statechange');\n        }\n      }\n    });\n\n    _this.sourceUpdater_.on('ready', function () {\n      if (_this.hasEnoughInfoToAppend_()) {\n        _this.processCallQueue_();\n      }\n    }); // Only the main loader needs to listen for pending timeline changes, as the main\n    // loader should wait for audio to be ready to change its timeline so that both main\n    // and audio timelines change together. For more details, see the\n    // shouldWaitForTimelineChange function.\n\n\n    if (_this.loaderType_ === 'main') {\n      _this.timelineChangeController_.on('pendingtimelinechange', function () {\n        if (_this.hasEnoughInfoToAppend_()) {\n          _this.processCallQueue_();\n        }\n      });\n    } // The main loader only listens on pending timeline changes, but the audio loader,\n    // since its loads follow main, needs to listen on timeline changes. For more details,\n    // see the shouldWaitForTimelineChange function.\n\n\n    if (_this.loaderType_ === 'audio') {\n      _this.timelineChangeController_.on('timelinechange', function () {\n        if (_this.hasEnoughInfoToLoad_()) {\n          _this.processLoadQueue_();\n        }\n\n        if (_this.hasEnoughInfoToAppend_()) {\n          _this.processCallQueue_();\n        }\n      });\n    }\n\n    return _this;\n  }\n\n  var _proto = SegmentLoader.prototype;\n\n  _proto.createTransmuxer_ = function createTransmuxer_() {\n    return segmentTransmuxer.createTransmuxer({\n      remux: false,\n      alignGopsAtEnd: this.safeAppend_,\n      keepOriginalTimestamps: true,\n      parse708captions: this.parse708captions_\n    });\n  }\n  /**\n   * reset all of our media stats\n   *\n   * @private\n   */\n  ;\n\n  _proto.resetStats_ = function resetStats_() {\n    this.mediaBytesTransferred = 0;\n    this.mediaRequests = 0;\n    this.mediaRequestsAborted = 0;\n    this.mediaRequestsTimedout = 0;\n    this.mediaRequestsErrored = 0;\n    this.mediaTransferDuration = 0;\n    this.mediaSecondsLoaded = 0;\n    this.mediaAppends = 0;\n  }\n  /**\n   * dispose of the SegmentLoader and reset to the default state\n   */\n  ;\n\n  _proto.dispose = function dispose() {\n    this.trigger('dispose');\n    this.state = 'DISPOSED';\n    this.pause();\n    this.abort_();\n\n    if (this.transmuxer_) {\n      this.transmuxer_.terminate();\n    }\n\n    this.resetStats_();\n\n    if (this.checkBufferTimeout_) {\n      window.clearTimeout(this.checkBufferTimeout_);\n    }\n\n    if (this.syncController_ && this.triggerSyncInfoUpdate_) {\n      this.syncController_.off('syncinfoupdate', this.triggerSyncInfoUpdate_);\n    }\n\n    this.off();\n  };\n\n  _proto.setAudio = function setAudio(enable) {\n    this.audioDisabled_ = !enable;\n\n    if (enable) {\n      this.appendInitSegment_.audio = true;\n    } else {\n      // remove current track audio if it gets disabled\n      this.sourceUpdater_.removeAudio(0, this.duration_());\n    }\n  }\n  /**\n   * abort anything that is currently doing on with the SegmentLoader\n   * and reset to a default state\n   */\n  ;\n\n  _proto.abort = function abort() {\n    if (this.state !== 'WAITING') {\n      if (this.pendingSegment_) {\n        this.pendingSegment_ = null;\n      }\n\n      return;\n    }\n\n    this.abort_(); // We aborted the requests we were waiting on, so reset the loader's state to READY\n    // since we are no longer \"waiting\" on any requests. XHR callback is not always run\n    // when the request is aborted. This will prevent the loader from being stuck in the\n    // WAITING state indefinitely.\n\n    this.state = 'READY'; // don't wait for buffer check timeouts to begin fetching the\n    // next segment\n\n    if (!this.paused()) {\n      this.monitorBuffer_();\n    }\n  }\n  /**\n   * abort all pending xhr requests and null any pending segements\n   *\n   * @private\n   */\n  ;\n\n  _proto.abort_ = function abort_() {\n    if (this.pendingSegment_ && this.pendingSegment_.abortRequests) {\n      this.pendingSegment_.abortRequests();\n    } // clear out the segment being processed\n\n\n    this.pendingSegment_ = null;\n    this.callQueue_ = [];\n    this.loadQueue_ = [];\n    this.metadataQueue_.id3 = [];\n    this.metadataQueue_.caption = [];\n    this.timelineChangeController_.clearPendingTimelineChange(this.loaderType_);\n    this.waitingOnRemove_ = false;\n    window.clearTimeout(this.quotaExceededErrorRetryTimeout_);\n    this.quotaExceededErrorRetryTimeout_ = null;\n  };\n\n  _proto.checkForAbort_ = function checkForAbort_(requestId) {\n    // If the state is APPENDING, then aborts will not modify the state, meaning the first\n    // callback that happens should reset the state to READY so that loading can continue.\n    if (this.state === 'APPENDING' && !this.pendingSegment_) {\n      this.state = 'READY';\n      return true;\n    }\n\n    if (!this.pendingSegment_ || this.pendingSegment_.requestId !== requestId) {\n      return true;\n    }\n\n    return false;\n  }\n  /**\n   * set an error on the segment loader and null out any pending segements\n   *\n   * @param {Error} error the error to set on the SegmentLoader\n   * @return {Error} the error that was set or that is currently set\n   */\n  ;\n\n  _proto.error = function error(_error) {\n    if (typeof _error !== 'undefined') {\n      this.logger_('error occurred:', _error);\n      this.error_ = _error;\n    }\n\n    this.pendingSegment_ = null;\n    return this.error_;\n  };\n\n  _proto.endOfStream = function endOfStream() {\n    this.ended_ = true;\n\n    if (this.transmuxer_) {\n      // need to clear out any cached data to prepare for the new segment\n      segmentTransmuxer.reset(this.transmuxer_);\n    }\n\n    this.gopBuffer_.length = 0;\n    this.pause();\n    this.trigger('ended');\n  }\n  /**\n   * Indicates which time ranges are buffered\n   *\n   * @return {TimeRange}\n   *         TimeRange object representing the current buffered ranges\n   */\n  ;\n\n  _proto.buffered_ = function buffered_() {\n    var trackInfo = this.getMediaInfo_();\n\n    if (!this.sourceUpdater_ || !trackInfo) {\n      return videojs.createTimeRanges();\n    }\n\n    if (this.loaderType_ === 'main') {\n      var hasAudio = trackInfo.hasAudio,\n          hasVideo = trackInfo.hasVideo,\n          isMuxed = trackInfo.isMuxed;\n\n      if (hasVideo && hasAudio && !this.audioDisabled_ && !isMuxed) {\n        return this.sourceUpdater_.buffered();\n      }\n\n      if (hasVideo) {\n        return this.sourceUpdater_.videoBuffered();\n      }\n    } // One case that can be ignored for now is audio only with alt audio,\n    // as we don't yet have proper support for that.\n\n\n    return this.sourceUpdater_.audioBuffered();\n  }\n  /**\n   * Gets and sets init segment for the provided map\n   *\n   * @param {Object} map\n   *        The map object representing the init segment to get or set\n   * @param {boolean=} set\n   *        If true, the init segment for the provided map should be saved\n   * @return {Object}\n   *         map object for desired init segment\n   */\n  ;\n\n  _proto.initSegmentForMap = function initSegmentForMap(map, set) {\n    if (set === void 0) {\n      set = false;\n    }\n\n    if (!map) {\n      return null;\n    }\n\n    var id = initSegmentId(map);\n    var storedMap = this.initSegments_[id];\n\n    if (set && !storedMap && map.bytes) {\n      this.initSegments_[id] = storedMap = {\n        resolvedUri: map.resolvedUri,\n        byterange: map.byterange,\n        bytes: map.bytes,\n        tracks: map.tracks,\n        timescales: map.timescales\n      };\n    }\n\n    return storedMap || map;\n  }\n  /**\n   * Gets and sets key for the provided key\n   *\n   * @param {Object} key\n   *        The key object representing the key to get or set\n   * @param {boolean=} set\n   *        If true, the key for the provided key should be saved\n   * @return {Object}\n   *         Key object for desired key\n   */\n  ;\n\n  _proto.segmentKey = function segmentKey(key, set) {\n    if (set === void 0) {\n      set = false;\n    }\n\n    if (!key) {\n      return null;\n    }\n\n    var id = segmentKeyId(key);\n    var storedKey = this.keyCache_[id]; // TODO: We should use the HTTP Expires header to invalidate our cache per\n    // https://tools.ietf.org/html/draft-pantos-http-live-streaming-23#section-6.2.3\n\n    if (this.cacheEncryptionKeys_ && set && !storedKey && key.bytes) {\n      this.keyCache_[id] = storedKey = {\n        resolvedUri: key.resolvedUri,\n        bytes: key.bytes\n      };\n    }\n\n    var result = {\n      resolvedUri: (storedKey || key).resolvedUri\n    };\n\n    if (storedKey) {\n      result.bytes = storedKey.bytes;\n    }\n\n    return result;\n  }\n  /**\n   * Returns true if all configuration required for loading is present, otherwise false.\n   *\n   * @return {boolean} True if the all configuration is ready for loading\n   * @private\n   */\n  ;\n\n  _proto.couldBeginLoading_ = function couldBeginLoading_() {\n    return this.playlist_ && !this.paused();\n  }\n  /**\n   * load a playlist and start to fill the buffer\n   */\n  ;\n\n  _proto.load = function load() {\n    // un-pause\n    this.monitorBuffer_(); // if we don't have a playlist yet, keep waiting for one to be\n    // specified\n\n    if (!this.playlist_) {\n      return;\n    } // if all the configuration is ready, initialize and begin loading\n\n\n    if (this.state === 'INIT' && this.couldBeginLoading_()) {\n      return this.init_();\n    } // if we're in the middle of processing a segment already, don't\n    // kick off an additional segment request\n\n\n    if (!this.couldBeginLoading_() || this.state !== 'READY' && this.state !== 'INIT') {\n      return;\n    }\n\n    this.state = 'READY';\n  }\n  /**\n   * Once all the starting parameters have been specified, begin\n   * operation. This method should only be invoked from the INIT\n   * state.\n   *\n   * @private\n   */\n  ;\n\n  _proto.init_ = function init_() {\n    this.state = 'READY'; // if this is the audio segment loader, and it hasn't been inited before, then any old\n    // audio data from the muxed content should be removed\n\n    this.resetEverything();\n    return this.monitorBuffer_();\n  }\n  /**\n   * set a playlist on the segment loader\n   *\n   * @param {PlaylistLoader} media the playlist to set on the segment loader\n   */\n  ;\n\n  _proto.playlist = function playlist(newPlaylist, options) {\n    if (options === void 0) {\n      options = {};\n    }\n\n    if (!newPlaylist) {\n      return;\n    }\n\n    var oldPlaylist = this.playlist_;\n    var segmentInfo = this.pendingSegment_;\n    this.playlist_ = newPlaylist;\n    this.xhrOptions_ = options; // when we haven't started playing yet, the start of a live playlist\n    // is always our zero-time so force a sync update each time the playlist\n    // is refreshed from the server\n    //\n    // Use the INIT state to determine if playback has started, as the playlist sync info\n    // should be fixed once requests begin (as sync points are generated based on sync\n    // info), but not before then.\n\n    if (this.state === 'INIT') {\n      newPlaylist.syncInfo = {\n        mediaSequence: newPlaylist.mediaSequence,\n        time: 0\n      }; // Setting the date time mapping means mapping the program date time (if available)\n      // to time 0 on the player's timeline. The playlist's syncInfo serves a similar\n      // purpose, mapping the initial mediaSequence to time zero. Since the syncInfo can\n      // be updated as the playlist is refreshed before the loader starts loading, the\n      // program date time mapping needs to be updated as well.\n      //\n      // This mapping is only done for the main loader because a program date time should\n      // map equivalently between playlists.\n\n      if (this.loaderType_ === 'main') {\n        this.syncController_.setDateTimeMappingForStart(newPlaylist);\n      }\n    }\n\n    var oldId = null;\n\n    if (oldPlaylist) {\n      if (oldPlaylist.id) {\n        oldId = oldPlaylist.id;\n      } else if (oldPlaylist.uri) {\n        oldId = oldPlaylist.uri;\n      }\n    }\n\n    this.logger_(\"playlist update [\" + oldId + \" => \" + (newPlaylist.id || newPlaylist.uri) + \"]\"); // in VOD, this is always a rendition switch (or we updated our syncInfo above)\n    // in LIVE, we always want to update with new playlists (including refreshes)\n\n    this.trigger('syncinfoupdate'); // if we were unpaused but waiting for a playlist, start\n    // buffering now\n\n    if (this.state === 'INIT' && this.couldBeginLoading_()) {\n      return this.init_();\n    }\n\n    if (!oldPlaylist || oldPlaylist.uri !== newPlaylist.uri) {\n      if (this.mediaIndex !== null) {\n        // we must \"resync\" the segment loader when we switch renditions and\n        // the segment loader is already synced to the previous rendition\n        this.resyncLoader();\n      }\n\n      this.currentMediaInfo_ = void 0;\n      this.trigger('playlistupdate'); // the rest of this function depends on `oldPlaylist` being defined\n\n      return;\n    } // we reloaded the same playlist so we are in a live scenario\n    // and we will likely need to adjust the mediaIndex\n\n\n    var mediaSequenceDiff = newPlaylist.mediaSequence - oldPlaylist.mediaSequence;\n    this.logger_(\"live window shift [\" + mediaSequenceDiff + \"]\"); // update the mediaIndex on the SegmentLoader\n    // this is important because we can abort a request and this value must be\n    // equal to the last appended mediaIndex\n\n    if (this.mediaIndex !== null) {\n      this.mediaIndex -= mediaSequenceDiff; // this can happen if we are going to load the first segment, but get a playlist\n      // update during that. mediaIndex would go from 0 to -1 if mediaSequence in the\n      // new playlist was incremented by 1.\n\n      if (this.mediaIndex < 0) {\n        this.mediaIndex = null;\n        this.partIndex = null;\n      } else {\n        var segment = this.playlist_.segments[this.mediaIndex]; // partIndex should remain the same for the same segment\n        // unless parts fell off of the playlist for this segment.\n        // In that case we need to reset partIndex and resync\n\n        if (this.partIndex && (!segment.parts || !segment.parts.length || !segment.parts[this.partIndex])) {\n          var mediaIndex = this.mediaIndex;\n          this.logger_(\"currently processing part (index \" + this.partIndex + \") no longer exists.\");\n          this.resetLoader(); // We want to throw away the partIndex and the data associated with it,\n          // as the part was dropped from our current playlists segment.\n          // The mediaIndex will still be valid so keep that around.\n\n          this.mediaIndex = mediaIndex;\n        }\n      }\n    } // update the mediaIndex on the SegmentInfo object\n    // this is important because we will update this.mediaIndex with this value\n    // in `handleAppendsDone_` after the segment has been successfully appended\n\n\n    if (segmentInfo) {\n      segmentInfo.mediaIndex -= mediaSequenceDiff;\n\n      if (segmentInfo.mediaIndex < 0) {\n        segmentInfo.mediaIndex = null;\n        segmentInfo.partIndex = null;\n      } else {\n        // we need to update the referenced segment so that timing information is\n        // saved for the new playlist's segment, however, if the segment fell off the\n        // playlist, we can leave the old reference and just lose the timing info\n        if (segmentInfo.mediaIndex >= 0) {\n          segmentInfo.segment = newPlaylist.segments[segmentInfo.mediaIndex];\n        }\n\n        if (segmentInfo.partIndex >= 0 && segmentInfo.segment.parts) {\n          segmentInfo.part = segmentInfo.segment.parts[segmentInfo.partIndex];\n        }\n      }\n    }\n\n    this.syncController_.saveExpiredSegmentInfo(oldPlaylist, newPlaylist);\n  }\n  /**\n   * Prevent the loader from fetching additional segments. If there\n   * is a segment request outstanding, it will finish processing\n   * before the loader halts. A segment loader can be unpaused by\n   * calling load().\n   */\n  ;\n\n  _proto.pause = function pause() {\n    if (this.checkBufferTimeout_) {\n      window.clearTimeout(this.checkBufferTimeout_);\n      this.checkBufferTimeout_ = null;\n    }\n  }\n  /**\n   * Returns whether the segment loader is fetching additional\n   * segments when given the opportunity. This property can be\n   * modified through calls to pause() and load().\n   */\n  ;\n\n  _proto.paused = function paused() {\n    return this.checkBufferTimeout_ === null;\n  }\n  /**\n   * Delete all the buffered data and reset the SegmentLoader\n   *\n   * @param {Function} [done] an optional callback to be executed when the remove\n   * operation is complete\n   */\n  ;\n\n  _proto.resetEverything = function resetEverything(done) {\n    this.ended_ = false;\n    this.appendInitSegment_ = {\n      audio: true,\n      video: true\n    };\n    this.resetLoader(); // remove from 0, the earliest point, to Infinity, to signify removal of everything.\n    // VTT Segment Loader doesn't need to do anything but in the regular SegmentLoader,\n    // we then clamp the value to duration if necessary.\n\n    this.remove(0, Infinity, done); // clears fmp4 captions\n\n    if (this.transmuxer_) {\n      this.transmuxer_.postMessage({\n        action: 'clearAllMp4Captions'\n      });\n    }\n  }\n  /**\n   * Force the SegmentLoader to resync and start loading around the currentTime instead\n   * of starting at the end of the buffer\n   *\n   * Useful for fast quality changes\n   */\n  ;\n\n  _proto.resetLoader = function resetLoader() {\n    this.fetchAtBuffer_ = false;\n    this.resyncLoader();\n  }\n  /**\n   * Force the SegmentLoader to restart synchronization and make a conservative guess\n   * before returning to the simple walk-forward method\n   */\n  ;\n\n  _proto.resyncLoader = function resyncLoader() {\n    if (this.transmuxer_) {\n      // need to clear out any cached data to prepare for the new segment\n      segmentTransmuxer.reset(this.transmuxer_);\n    }\n\n    this.mediaIndex = null;\n    this.partIndex = null;\n    this.syncPoint_ = null;\n    this.isPendingTimestampOffset_ = false;\n    this.callQueue_ = [];\n    this.loadQueue_ = [];\n    this.metadataQueue_.id3 = [];\n    this.metadataQueue_.caption = [];\n    this.abort();\n\n    if (this.transmuxer_) {\n      this.transmuxer_.postMessage({\n        action: 'clearParsedMp4Captions'\n      });\n    }\n  }\n  /**\n   * Remove any data in the source buffer between start and end times\n   *\n   * @param {number} start - the start time of the region to remove from the buffer\n   * @param {number} end - the end time of the region to remove from the buffer\n   * @param {Function} [done] - an optional callback to be executed when the remove\n   * @param {boolean} force - force all remove operations to happen\n   * operation is complete\n   */\n  ;\n\n  _proto.remove = function remove(start, end, done, force) {\n    if (done === void 0) {\n      done = function done() {};\n    }\n\n    if (force === void 0) {\n      force = false;\n    } // clamp end to duration if we need to remove everything.\n    // This is due to a browser bug that causes issues if we remove to Infinity.\n    // videojs/videojs-contrib-hls#1225\n\n\n    if (end === Infinity) {\n      end = this.duration_();\n    } // skip removes that would throw an error\n    // commonly happens during a rendition switch at the start of a video\n    // from start 0 to end 0\n\n\n    if (end <= start) {\n      this.logger_('skipping remove because end ${end} is <= start ${start}');\n      return;\n    }\n\n    if (!this.sourceUpdater_ || !this.getMediaInfo_()) {\n      this.logger_('skipping remove because no source updater or starting media info'); // nothing to remove if we haven't processed any media\n\n      return;\n    } // set it to one to complete this function's removes\n\n\n    var removesRemaining = 1;\n\n    var removeFinished = function removeFinished() {\n      removesRemaining--;\n\n      if (removesRemaining === 0) {\n        done();\n      }\n    };\n\n    if (force || !this.audioDisabled_) {\n      removesRemaining++;\n      this.sourceUpdater_.removeAudio(start, end, removeFinished);\n    } // While it would be better to only remove video if the main loader has video, this\n    // should be safe with audio only as removeVideo will call back even if there's no\n    // video buffer.\n    //\n    // In theory we can check to see if there's video before calling the remove, but in\n    // the event that we're switching between renditions and from video to audio only\n    // (when we add support for that), we may need to clear the video contents despite\n    // what the new media will contain.\n\n\n    if (force || this.loaderType_ === 'main') {\n      this.gopBuffer_ = removeGopBuffer(this.gopBuffer_, start, end, this.timeMapping_);\n      removesRemaining++;\n      this.sourceUpdater_.removeVideo(start, end, removeFinished);\n    } // remove any captions and ID3 tags\n\n\n    for (var track in this.inbandTextTracks_) {\n      removeCuesFromTrack(start, end, this.inbandTextTracks_[track]);\n    }\n\n    removeCuesFromTrack(start, end, this.segmentMetadataTrack_); // finished this function's removes\n\n    removeFinished();\n  }\n  /**\n   * (re-)schedule monitorBufferTick_ to run as soon as possible\n   *\n   * @private\n   */\n  ;\n\n  _proto.monitorBuffer_ = function monitorBuffer_() {\n    if (this.checkBufferTimeout_) {\n      window.clearTimeout(this.checkBufferTimeout_);\n    }\n\n    this.checkBufferTimeout_ = window.setTimeout(this.monitorBufferTick_.bind(this), 1);\n  }\n  /**\n   * As long as the SegmentLoader is in the READY state, periodically\n   * invoke fillBuffer_().\n   *\n   * @private\n   */\n  ;\n\n  _proto.monitorBufferTick_ = function monitorBufferTick_() {\n    if (this.state === 'READY') {\n      this.fillBuffer_();\n    }\n\n    if (this.checkBufferTimeout_) {\n      window.clearTimeout(this.checkBufferTimeout_);\n    }\n\n    this.checkBufferTimeout_ = window.setTimeout(this.monitorBufferTick_.bind(this), CHECK_BUFFER_DELAY);\n  }\n  /**\n   * fill the buffer with segements unless the sourceBuffers are\n   * currently updating\n   *\n   * Note: this function should only ever be called by monitorBuffer_\n   * and never directly\n   *\n   * @private\n   */\n  ;\n\n  _proto.fillBuffer_ = function fillBuffer_() {\n    // TODO since the source buffer maintains a queue, and we shouldn't call this function\n    // except when we're ready for the next segment, this check can most likely be removed\n    if (this.sourceUpdater_.updating()) {\n      return;\n    } // see if we need to begin loading immediately\n\n\n    var segmentInfo = this.chooseNextRequest_();\n\n    if (!segmentInfo) {\n      return;\n    }\n\n    if (typeof segmentInfo.timestampOffset === 'number') {\n      this.isPendingTimestampOffset_ = false;\n      this.timelineChangeController_.pendingTimelineChange({\n        type: this.loaderType_,\n        from: this.currentTimeline_,\n        to: segmentInfo.timeline\n      });\n    }\n\n    this.loadSegment_(segmentInfo);\n  }\n  /**\n   * Determines if we should call endOfStream on the media source based\n   * on the state of the buffer or if appened segment was the final\n   * segment in the playlist.\n   *\n   * @param {number} [mediaIndex] the media index of segment we last appended\n   * @param {Object} [playlist] a media playlist object\n   * @return {boolean} do we need to call endOfStream on the MediaSource\n   */\n  ;\n\n  _proto.isEndOfStream_ = function isEndOfStream_(mediaIndex, playlist, partIndex) {\n    if (mediaIndex === void 0) {\n      mediaIndex = this.mediaIndex;\n    }\n\n    if (playlist === void 0) {\n      playlist = this.playlist_;\n    }\n\n    if (partIndex === void 0) {\n      partIndex = this.partIndex;\n    }\n\n    if (!playlist || !this.mediaSource_) {\n      return false;\n    }\n\n    var segment = typeof mediaIndex === 'number' && playlist.segments[mediaIndex]; // mediaIndex is zero based but length is 1 based\n\n    var appendedLastSegment = mediaIndex + 1 === playlist.segments.length; // true if there are no parts, or this is the last part.\n\n    var appendedLastPart = !segment || !segment.parts || partIndex + 1 === segment.parts.length; // if we've buffered to the end of the video, we need to call endOfStream\n    // so that MediaSources can trigger the `ended` event when it runs out of\n    // buffered data instead of waiting for me\n\n    return playlist.endList && this.mediaSource_.readyState === 'open' && appendedLastSegment && appendedLastPart;\n  }\n  /**\n   * Determines what request should be made given current segment loader state.\n   *\n   * @return {Object} a request object that describes the segment/part to load\n   */\n  ;\n\n  _proto.chooseNextRequest_ = function chooseNextRequest_() {\n    var bufferedEnd = lastBufferedEnd(this.buffered_()) || 0;\n    var bufferedTime = Math.max(0, bufferedEnd - this.currentTime_());\n    var preloaded = !this.hasPlayed_() && bufferedTime >= 1;\n    var haveEnoughBuffer = bufferedTime >= this.goalBufferLength_();\n    var segments = this.playlist_.segments; // return no segment if:\n    // 1. we don't have segments\n    // 2. The video has not yet played and we already downloaded a segment\n    // 3. we already have enough buffered time\n\n    if (!segments.length || preloaded || haveEnoughBuffer) {\n      return null;\n    }\n\n    this.syncPoint_ = this.syncPoint_ || this.syncController_.getSyncPoint(this.playlist_, this.duration_(), this.currentTimeline_, this.currentTime_());\n    var next = {\n      partIndex: null,\n      mediaIndex: null,\n      startOfSegment: null,\n      playlist: this.playlist_,\n      isSyncRequest: Boolean(!this.syncPoint_)\n    };\n\n    if (next.isSyncRequest) {\n      next.mediaIndex = getSyncSegmentCandidate(this.currentTimeline_, segments, bufferedEnd);\n    } else if (this.mediaIndex !== null) {\n      var segment = segments[this.mediaIndex];\n      var partIndex = typeof this.partIndex === 'number' ? this.partIndex : -1;\n      next.startOfSegment = segment.end ? segment.end : bufferedEnd;\n\n      if (segment.parts && segment.parts[partIndex + 1]) {\n        next.mediaIndex = this.mediaIndex;\n        next.partIndex = partIndex + 1;\n      } else {\n        next.mediaIndex = this.mediaIndex + 1;\n      }\n    } else {\n      // Find the segment containing the end of the buffer or current time.\n      var _Playlist$getMediaInf = Playlist.getMediaInfoForTime({\n        experimentalExactManifestTimings: this.experimentalExactManifestTimings,\n        playlist: this.playlist_,\n        currentTime: this.fetchAtBuffer_ ? bufferedEnd : this.currentTime_(),\n        startingPartIndex: this.syncPoint_.partIndex,\n        startingSegmentIndex: this.syncPoint_.segmentIndex,\n        startTime: this.syncPoint_.time\n      }),\n          segmentIndex = _Playlist$getMediaInf.segmentIndex,\n          startTime = _Playlist$getMediaInf.startTime,\n          _partIndex = _Playlist$getMediaInf.partIndex;\n\n      next.getMediaInfoForTime = this.fetchAtBuffer_ ? 'bufferedEnd' : 'currentTime';\n      next.mediaIndex = segmentIndex;\n      next.startOfSegment = startTime;\n      next.partIndex = _partIndex;\n    }\n\n    var nextSegment = segments[next.mediaIndex];\n    var nextPart = nextSegment && typeof next.partIndex === 'number' && nextSegment.parts && nextSegment.parts[next.partIndex]; // if the next segment index is invalid or\n    // the next partIndex is invalid do not choose a next segment.\n\n    if (!nextSegment || typeof next.partIndex === 'number' && !nextPart) {\n      return null;\n    } // if the next segment has parts, and we don't have a partIndex.\n    // Set partIndex to 0\n\n\n    if (typeof next.partIndex !== 'number' && nextSegment.parts) {\n      next.partIndex = 0;\n    }\n\n    var ended = this.mediaSource_ && this.mediaSource_.readyState === 'ended'; // do not choose a next segment if all of the following:\n    // 1. this is the last segment in the playlist\n    // 2. end of stream has been called on the media source already\n    // 3. the player is not seeking\n\n    if (next.mediaIndex >= segments.length - 1 && ended && !this.seeking_()) {\n      return null;\n    }\n\n    return this.generateSegmentInfo_(next);\n  };\n\n  _proto.generateSegmentInfo_ = function generateSegmentInfo_(options) {\n    var playlist = options.playlist,\n        mediaIndex = options.mediaIndex,\n        startOfSegment = options.startOfSegment,\n        isSyncRequest = options.isSyncRequest,\n        partIndex = options.partIndex,\n        forceTimestampOffset = options.forceTimestampOffset,\n        getMediaInfoForTime = options.getMediaInfoForTime;\n    var segment = playlist.segments[mediaIndex];\n    var part = typeof partIndex === 'number' && segment.parts[partIndex];\n    var segmentInfo = {\n      requestId: 'segment-loader-' + Math.random(),\n      // resolve the segment URL relative to the playlist\n      uri: part && part.resolvedUri || segment.resolvedUri,\n      // the segment's mediaIndex at the time it was requested\n      mediaIndex: mediaIndex,\n      partIndex: part ? partIndex : null,\n      // whether or not to update the SegmentLoader's state with this\n      // segment's mediaIndex\n      isSyncRequest: isSyncRequest,\n      startOfSegment: startOfSegment,\n      // the segment's playlist\n      playlist: playlist,\n      // unencrypted bytes of the segment\n      bytes: null,\n      // when a key is defined for this segment, the encrypted bytes\n      encryptedBytes: null,\n      // The target timestampOffset for this segment when we append it\n      // to the source buffer\n      timestampOffset: null,\n      // The timeline that the segment is in\n      timeline: segment.timeline,\n      // The expected duration of the segment in seconds\n      duration: part && part.duration || segment.duration,\n      // retain the segment in case the playlist updates while doing an async process\n      segment: segment,\n      part: part,\n      byteLength: 0,\n      transmuxer: this.transmuxer_,\n      // type of getMediaInfoForTime that was used to get this segment\n      getMediaInfoForTime: getMediaInfoForTime\n    };\n    var overrideCheck = typeof forceTimestampOffset !== 'undefined' ? forceTimestampOffset : this.isPendingTimestampOffset_;\n    segmentInfo.timestampOffset = this.timestampOffsetForSegment_({\n      segmentTimeline: segment.timeline,\n      currentTimeline: this.currentTimeline_,\n      startOfSegment: startOfSegment,\n      buffered: this.buffered_(),\n      overrideCheck: overrideCheck\n    });\n    var audioBufferedEnd = lastBufferedEnd(this.sourceUpdater_.audioBuffered());\n\n    if (typeof audioBufferedEnd === 'number') {\n      // since the transmuxer is using the actual timing values, but the buffer is\n      // adjusted by the timestamp offset, we must adjust the value here\n      segmentInfo.audioAppendStart = audioBufferedEnd - this.sourceUpdater_.audioTimestampOffset();\n    }\n\n    if (this.sourceUpdater_.videoBuffered().length) {\n      segmentInfo.gopsToAlignWith = gopsSafeToAlignWith(this.gopBuffer_, // since the transmuxer is using the actual timing values, but the time is\n      // adjusted by the timestmap offset, we must adjust the value here\n      this.currentTime_() - this.sourceUpdater_.videoTimestampOffset(), this.timeMapping_);\n    }\n\n    return segmentInfo;\n  } // get the timestampoffset for a segment,\n  // added so that vtt segment loader can override and prevent\n  // adding timestamp offsets.\n  ;\n\n  _proto.timestampOffsetForSegment_ = function timestampOffsetForSegment_(options) {\n    return timestampOffsetForSegment(options);\n  }\n  /**\n   * Determines if the network has enough bandwidth to complete the current segment\n   * request in a timely manner. If not, the request will be aborted early and bandwidth\n   * updated to trigger a playlist switch.\n   *\n   * @param {Object} stats\n   *        Object containing stats about the request timing and size\n   * @private\n   */\n  ;\n\n  _proto.earlyAbortWhenNeeded_ = function earlyAbortWhenNeeded_(stats) {\n    if (this.vhs_.tech_.paused() || // Don't abort if the current playlist is on the lowestEnabledRendition\n    // TODO: Replace using timeout with a boolean indicating whether this playlist is\n    //       the lowestEnabledRendition.\n    !this.xhrOptions_.timeout || // Don't abort if we have no bandwidth information to estimate segment sizes\n    !this.playlist_.attributes.BANDWIDTH) {\n      return;\n    } // Wait at least 1 second since the first byte of data has been received before\n    // using the calculated bandwidth from the progress event to allow the bitrate\n    // to stabilize\n\n\n    if (Date.now() - (stats.firstBytesReceivedAt || Date.now()) < 1000) {\n      return;\n    }\n\n    var currentTime = this.currentTime_();\n    var measuredBandwidth = stats.bandwidth;\n    var segmentDuration = this.pendingSegment_.duration;\n    var requestTimeRemaining = Playlist.estimateSegmentRequestTime(segmentDuration, measuredBandwidth, this.playlist_, stats.bytesReceived); // Subtract 1 from the timeUntilRebuffer so we still consider an early abort\n    // if we are only left with less than 1 second when the request completes.\n    // A negative timeUntilRebuffering indicates we are already rebuffering\n\n    var timeUntilRebuffer$1 = timeUntilRebuffer(this.buffered_(), currentTime, this.vhs_.tech_.playbackRate()) - 1; // Only consider aborting early if the estimated time to finish the download\n    // is larger than the estimated time until the player runs out of forward buffer\n\n    if (requestTimeRemaining <= timeUntilRebuffer$1) {\n      return;\n    }\n\n    var switchCandidate = minRebufferMaxBandwidthSelector({\n      master: this.vhs_.playlists.master,\n      currentTime: currentTime,\n      bandwidth: measuredBandwidth,\n      duration: this.duration_(),\n      segmentDuration: segmentDuration,\n      timeUntilRebuffer: timeUntilRebuffer$1,\n      currentTimeline: this.currentTimeline_,\n      syncController: this.syncController_\n    });\n\n    if (!switchCandidate) {\n      return;\n    }\n\n    var rebufferingImpact = requestTimeRemaining - timeUntilRebuffer$1;\n    var timeSavedBySwitching = rebufferingImpact - switchCandidate.rebufferingImpact;\n    var minimumTimeSaving = 0.5; // If we are already rebuffering, increase the amount of variance we add to the\n    // potential round trip time of the new request so that we are not too aggressive\n    // with switching to a playlist that might save us a fraction of a second.\n\n    if (timeUntilRebuffer$1 <= TIME_FUDGE_FACTOR) {\n      minimumTimeSaving = 1;\n    }\n\n    if (!switchCandidate.playlist || switchCandidate.playlist.uri === this.playlist_.uri || timeSavedBySwitching < minimumTimeSaving) {\n      return;\n    } // set the bandwidth to that of the desired playlist being sure to scale by\n    // BANDWIDTH_VARIANCE and add one so the playlist selector does not exclude it\n    // don't trigger a bandwidthupdate as the bandwidth is artifial\n\n\n    this.bandwidth = switchCandidate.playlist.attributes.BANDWIDTH * Config.BANDWIDTH_VARIANCE + 1;\n    this.trigger('earlyabort');\n  };\n\n  _proto.handleAbort_ = function handleAbort_(segmentInfo) {\n    this.logger_(\"Aborting \" + segmentInfoString(segmentInfo));\n    this.mediaRequestsAborted += 1;\n  }\n  /**\n   * XHR `progress` event handler\n   *\n   * @param {Event}\n   *        The XHR `progress` event\n   * @param {Object} simpleSegment\n   *        A simplified segment object copy\n   * @private\n   */\n  ;\n\n  _proto.handleProgress_ = function handleProgress_(event, simpleSegment) {\n    this.earlyAbortWhenNeeded_(simpleSegment.stats);\n\n    if (this.checkForAbort_(simpleSegment.requestId)) {\n      return;\n    }\n\n    this.trigger('progress');\n  };\n\n  _proto.handleTrackInfo_ = function handleTrackInfo_(simpleSegment, trackInfo) {\n    this.earlyAbortWhenNeeded_(simpleSegment.stats);\n\n    if (this.checkForAbort_(simpleSegment.requestId)) {\n      return;\n    }\n\n    if (this.checkForIllegalMediaSwitch(trackInfo)) {\n      return;\n    }\n\n    trackInfo = trackInfo || {}; // When we have track info, determine what media types this loader is dealing with.\n    // Guard against cases where we're not getting track info at all until we are\n    // certain that all streams will provide it.\n\n    if (!shallowEqual(this.currentMediaInfo_, trackInfo)) {\n      this.appendInitSegment_ = {\n        audio: true,\n        video: true\n      };\n      this.startingMediaInfo_ = trackInfo;\n      this.currentMediaInfo_ = trackInfo;\n      this.logger_('trackinfo update', trackInfo);\n      this.trigger('trackinfo');\n    } // trackinfo may cause an abort if the trackinfo\n    // causes a codec change to an unsupported codec.\n\n\n    if (this.checkForAbort_(simpleSegment.requestId)) {\n      return;\n    } // set trackinfo on the pending segment so that\n    // it can append.\n\n\n    this.pendingSegment_.trackInfo = trackInfo; // check if any calls were waiting on the track info\n\n    if (this.hasEnoughInfoToAppend_()) {\n      this.processCallQueue_();\n    }\n  };\n\n  _proto.handleTimingInfo_ = function handleTimingInfo_(simpleSegment, mediaType, timeType, time) {\n    this.earlyAbortWhenNeeded_(simpleSegment.stats);\n\n    if (this.checkForAbort_(simpleSegment.requestId)) {\n      return;\n    }\n\n    var segmentInfo = this.pendingSegment_;\n    var timingInfoProperty = timingInfoPropertyForMedia(mediaType);\n    segmentInfo[timingInfoProperty] = segmentInfo[timingInfoProperty] || {};\n    segmentInfo[timingInfoProperty][timeType] = time;\n    this.logger_(\"timinginfo: \" + mediaType + \" - \" + timeType + \" - \" + time); // check if any calls were waiting on the timing info\n\n    if (this.hasEnoughInfoToAppend_()) {\n      this.processCallQueue_();\n    }\n  };\n\n  _proto.handleCaptions_ = function handleCaptions_(simpleSegment, captionData) {\n    var _this2 = this;\n\n    this.earlyAbortWhenNeeded_(simpleSegment.stats);\n\n    if (this.checkForAbort_(simpleSegment.requestId)) {\n      return;\n    } // This could only happen with fmp4 segments, but\n    // should still not happen in general\n\n\n    if (captionData.length === 0) {\n      this.logger_('SegmentLoader received no captions from a caption event');\n      return;\n    }\n\n    var segmentInfo = this.pendingSegment_; // Wait until we have some video data so that caption timing\n    // can be adjusted by the timestamp offset\n\n    if (!segmentInfo.hasAppendedData_) {\n      this.metadataQueue_.caption.push(this.handleCaptions_.bind(this, simpleSegment, captionData));\n      return;\n    }\n\n    var timestampOffset = this.sourceUpdater_.videoTimestampOffset() === null ? this.sourceUpdater_.audioTimestampOffset() : this.sourceUpdater_.videoTimestampOffset();\n    var captionTracks = {}; // get total start/end and captions for each track/stream\n\n    captionData.forEach(function (caption) {\n      // caption.stream is actually a track name...\n      // set to the existing values in tracks or default values\n      captionTracks[caption.stream] = captionTracks[caption.stream] || {\n        // Infinity, as any other value will be less than this\n        startTime: Infinity,\n        captions: [],\n        // 0 as an other value will be more than this\n        endTime: 0\n      };\n      var captionTrack = captionTracks[caption.stream];\n      captionTrack.startTime = Math.min(captionTrack.startTime, caption.startTime + timestampOffset);\n      captionTrack.endTime = Math.max(captionTrack.endTime, caption.endTime + timestampOffset);\n      captionTrack.captions.push(caption);\n    });\n    Object.keys(captionTracks).forEach(function (trackName) {\n      var _captionTracks$trackN = captionTracks[trackName],\n          startTime = _captionTracks$trackN.startTime,\n          endTime = _captionTracks$trackN.endTime,\n          captions = _captionTracks$trackN.captions;\n      var inbandTextTracks = _this2.inbandTextTracks_;\n\n      _this2.logger_(\"adding cues from \" + startTime + \" -> \" + endTime + \" for \" + trackName);\n\n      createCaptionsTrackIfNotExists(inbandTextTracks, _this2.vhs_.tech_, trackName); // clear out any cues that start and end at the same time period for the same track.\n      // We do this because a rendition change that also changes the timescale for captions\n      // will result in captions being re-parsed for certain segments. If we add them again\n      // without clearing we will have two of the same captions visible.\n\n      removeCuesFromTrack(startTime, endTime, inbandTextTracks[trackName]);\n      addCaptionData({\n        captionArray: captions,\n        inbandTextTracks: inbandTextTracks,\n        timestampOffset: timestampOffset\n      });\n    }); // Reset stored captions since we added parsed\n    // captions to a text track at this point\n\n    if (this.transmuxer_) {\n      this.transmuxer_.postMessage({\n        action: 'clearParsedMp4Captions'\n      });\n    }\n  };\n\n  _proto.handleId3_ = function handleId3_(simpleSegment, id3Frames, dispatchType) {\n    this.earlyAbortWhenNeeded_(simpleSegment.stats);\n\n    if (this.checkForAbort_(simpleSegment.requestId)) {\n      return;\n    }\n\n    var segmentInfo = this.pendingSegment_; // we need to have appended data in order for the timestamp offset to be set\n\n    if (!segmentInfo.hasAppendedData_) {\n      this.metadataQueue_.id3.push(this.handleId3_.bind(this, simpleSegment, id3Frames, dispatchType));\n      return;\n    }\n\n    var timestampOffset = this.sourceUpdater_.videoTimestampOffset() === null ? this.sourceUpdater_.audioTimestampOffset() : this.sourceUpdater_.videoTimestampOffset(); // There's potentially an issue where we could double add metadata if there's a muxed\n    // audio/video source with a metadata track, and an alt audio with a metadata track.\n    // However, this probably won't happen, and if it does it can be handled then.\n\n    createMetadataTrackIfNotExists(this.inbandTextTracks_, dispatchType, this.vhs_.tech_);\n    addMetadata({\n      inbandTextTracks: this.inbandTextTracks_,\n      metadataArray: id3Frames,\n      timestampOffset: timestampOffset,\n      videoDuration: this.duration_()\n    });\n  };\n\n  _proto.processMetadataQueue_ = function processMetadataQueue_() {\n    this.metadataQueue_.id3.forEach(function (fn) {\n      return fn();\n    });\n    this.metadataQueue_.caption.forEach(function (fn) {\n      return fn();\n    });\n    this.metadataQueue_.id3 = [];\n    this.metadataQueue_.caption = [];\n  };\n\n  _proto.processCallQueue_ = function processCallQueue_() {\n    var callQueue = this.callQueue_; // Clear out the queue before the queued functions are run, since some of the\n    // functions may check the length of the load queue and default to pushing themselves\n    // back onto the queue.\n\n    this.callQueue_ = [];\n    callQueue.forEach(function (fun) {\n      return fun();\n    });\n  };\n\n  _proto.processLoadQueue_ = function processLoadQueue_() {\n    var loadQueue = this.loadQueue_; // Clear out the queue before the queued functions are run, since some of the\n    // functions may check the length of the load queue and default to pushing themselves\n    // back onto the queue.\n\n    this.loadQueue_ = [];\n    loadQueue.forEach(function (fun) {\n      return fun();\n    });\n  }\n  /**\n   * Determines whether the loader has enough info to load the next segment.\n   *\n   * @return {boolean}\n   *         Whether or not the loader has enough info to load the next segment\n   */\n  ;\n\n  _proto.hasEnoughInfoToLoad_ = function hasEnoughInfoToLoad_() {\n    // Since primary timing goes by video, only the audio loader potentially needs to wait\n    // to load.\n    if (this.loaderType_ !== 'audio') {\n      return true;\n    }\n\n    var segmentInfo = this.pendingSegment_; // A fill buffer must have already run to establish a pending segment before there's\n    // enough info to load.\n\n    if (!segmentInfo) {\n      return false;\n    } // The first segment can and should be loaded immediately so that source buffers are\n    // created together (before appending). Source buffer creation uses the presence of\n    // audio and video data to determine whether to create audio/video source buffers, and\n    // uses processed (transmuxed or parsed) media to determine the types required.\n\n\n    if (!this.getCurrentMediaInfo_()) {\n      return true;\n    }\n\n    if ( // Technically, instead of waiting to load a segment on timeline changes, a segment\n    // can be requested and downloaded and only wait before it is transmuxed or parsed.\n    // But in practice, there are a few reasons why it is better to wait until a loader\n    // is ready to append that segment before requesting and downloading:\n    //\n    // 1. Because audio and main loaders cross discontinuities together, if this loader\n    //    is waiting for the other to catch up, then instead of requesting another\n    //    segment and using up more bandwidth, by not yet loading, more bandwidth is\n    //    allotted to the loader currently behind.\n    // 2. media-segment-request doesn't have to have logic to consider whether a segment\n    // is ready to be processed or not, isolating the queueing behavior to the loader.\n    // 3. The audio loader bases some of its segment properties on timing information\n    //    provided by the main loader, meaning that, if the logic for waiting on\n    //    processing was in media-segment-request, then it would also need to know how\n    //    to re-generate the segment information after the main loader caught up.\n    shouldWaitForTimelineChange({\n      timelineChangeController: this.timelineChangeController_,\n      currentTimeline: this.currentTimeline_,\n      segmentTimeline: segmentInfo.timeline,\n      loaderType: this.loaderType_,\n      audioDisabled: this.audioDisabled_\n    })) {\n      return false;\n    }\n\n    return true;\n  };\n\n  _proto.getCurrentMediaInfo_ = function getCurrentMediaInfo_(segmentInfo) {\n    if (segmentInfo === void 0) {\n      segmentInfo = this.pendingSegment_;\n    }\n\n    return segmentInfo && segmentInfo.trackInfo || this.currentMediaInfo_;\n  };\n\n  _proto.getMediaInfo_ = function getMediaInfo_(segmentInfo) {\n    if (segmentInfo === void 0) {\n      segmentInfo = this.pendingSegment_;\n    }\n\n    return this.getCurrentMediaInfo_(segmentInfo) || this.startingMediaInfo_;\n  };\n\n  _proto.hasEnoughInfoToAppend_ = function hasEnoughInfoToAppend_() {\n    if (!this.sourceUpdater_.ready()) {\n      return false;\n    } // If content needs to be removed or the loader is waiting on an append reattempt,\n    // then no additional content should be appended until the prior append is resolved.\n\n\n    if (this.waitingOnRemove_ || this.quotaExceededErrorRetryTimeout_) {\n      return false;\n    }\n\n    var segmentInfo = this.pendingSegment_;\n    var trackInfo = this.getCurrentMediaInfo_(); // no segment to append any data for or\n    // we do not have information on this specific\n    // segment yet\n\n    if (!segmentInfo || !trackInfo) {\n      return false;\n    }\n\n    var hasAudio = trackInfo.hasAudio,\n        hasVideo = trackInfo.hasVideo,\n        isMuxed = trackInfo.isMuxed;\n\n    if (hasVideo && !segmentInfo.videoTimingInfo) {\n      return false;\n    } // muxed content only relies on video timing information for now.\n\n\n    if (hasAudio && !this.audioDisabled_ && !isMuxed && !segmentInfo.audioTimingInfo) {\n      return false;\n    }\n\n    if (shouldWaitForTimelineChange({\n      timelineChangeController: this.timelineChangeController_,\n      currentTimeline: this.currentTimeline_,\n      segmentTimeline: segmentInfo.timeline,\n      loaderType: this.loaderType_,\n      audioDisabled: this.audioDisabled_\n    })) {\n      return false;\n    }\n\n    return true;\n  };\n\n  _proto.handleData_ = function handleData_(simpleSegment, result) {\n    this.earlyAbortWhenNeeded_(simpleSegment.stats);\n\n    if (this.checkForAbort_(simpleSegment.requestId)) {\n      return;\n    } // If there's anything in the call queue, then this data came later and should be\n    // executed after the calls currently queued.\n\n\n    if (this.callQueue_.length || !this.hasEnoughInfoToAppend_()) {\n      this.callQueue_.push(this.handleData_.bind(this, simpleSegment, result));\n      return;\n    }\n\n    var segmentInfo = this.pendingSegment_; // update the time mapping so we can translate from display time to media time\n\n    this.setTimeMapping_(segmentInfo.timeline); // for tracking overall stats\n\n    this.updateMediaSecondsLoaded_(segmentInfo.segment); // Note that the state isn't changed from loading to appending. This is because abort\n    // logic may change behavior depending on the state, and changing state too early may\n    // inflate our estimates of bandwidth. In the future this should be re-examined to\n    // note more granular states.\n    // don't process and append data if the mediaSource is closed\n\n    if (this.mediaSource_.readyState === 'closed') {\n      return;\n    } // if this request included an initialization segment, save that data\n    // to the initSegment cache\n\n\n    if (simpleSegment.map) {\n      simpleSegment.map = this.initSegmentForMap(simpleSegment.map, true); // move over init segment properties to media request\n\n      segmentInfo.segment.map = simpleSegment.map;\n    } // if this request included a segment key, save that data in the cache\n\n\n    if (simpleSegment.key) {\n      this.segmentKey(simpleSegment.key, true);\n    }\n\n    segmentInfo.isFmp4 = simpleSegment.isFmp4;\n    segmentInfo.timingInfo = segmentInfo.timingInfo || {};\n\n    if (segmentInfo.isFmp4) {\n      this.trigger('fmp4');\n      segmentInfo.timingInfo.start = segmentInfo[timingInfoPropertyForMedia(result.type)].start;\n    } else {\n      var trackInfo = this.getCurrentMediaInfo_();\n      var useVideoTimingInfo = this.loaderType_ === 'main' && trackInfo && trackInfo.hasVideo;\n      var firstVideoFrameTimeForData;\n\n      if (useVideoTimingInfo) {\n        firstVideoFrameTimeForData = segmentInfo.videoTimingInfo.start;\n      } // Segment loader knows more about segment timing than the transmuxer (in certain\n      // aspects), so make any changes required for a more accurate start time.\n      // Don't set the end time yet, as the segment may not be finished processing.\n\n\n      segmentInfo.timingInfo.start = this.trueSegmentStart_({\n        currentStart: segmentInfo.timingInfo.start,\n        playlist: segmentInfo.playlist,\n        mediaIndex: segmentInfo.mediaIndex,\n        currentVideoTimestampOffset: this.sourceUpdater_.videoTimestampOffset(),\n        useVideoTimingInfo: useVideoTimingInfo,\n        firstVideoFrameTimeForData: firstVideoFrameTimeForData,\n        videoTimingInfo: segmentInfo.videoTimingInfo,\n        audioTimingInfo: segmentInfo.audioTimingInfo\n      });\n    } // Init segments for audio and video only need to be appended in certain cases. Now\n    // that data is about to be appended, we can check the final cases to determine\n    // whether we should append an init segment.\n\n\n    this.updateAppendInitSegmentStatus(segmentInfo, result.type); // Timestamp offset should be updated once we get new data and have its timing info,\n    // as we use the start of the segment to offset the best guess (playlist provided)\n    // timestamp offset.\n\n    this.updateSourceBufferTimestampOffset_(segmentInfo); // if this is a sync request we need to determine whether it should\n    // be appended or not.\n\n    if (segmentInfo.isSyncRequest) {\n      // first save/update our timing info for this segment.\n      // this is what allows us to choose an accurate segment\n      // and the main reason we make a sync request.\n      this.updateTimingInfoEnd_(segmentInfo);\n      this.syncController_.saveSegmentTimingInfo({\n        segmentInfo: segmentInfo,\n        shouldSaveTimelineMapping: this.loaderType_ === 'main'\n      });\n      var next = this.chooseNextRequest_(); // If the sync request isn't the segment that would be requested next\n      // after taking into account its timing info, do not append it.\n\n      if (next.mediaIndex !== segmentInfo.mediaIndex || next.partIndex !== segmentInfo.partIndex) {\n        this.logger_('sync segment was incorrect, not appending');\n        return;\n      } // otherwise append it like any other segment as our guess was correct.\n\n\n      this.logger_('sync segment was correct, appending');\n    } // Save some state so that in the future anything waiting on first append (and/or\n    // timestamp offset(s)) can process immediately. While the extra state isn't optimal,\n    // we need some notion of whether the timestamp offset or other relevant information\n    // has had a chance to be set.\n\n\n    segmentInfo.hasAppendedData_ = true; // Now that the timestamp offset should be set, we can append any waiting ID3 tags.\n\n    this.processMetadataQueue_();\n    this.appendData_(segmentInfo, result);\n  };\n\n  _proto.updateAppendInitSegmentStatus = function updateAppendInitSegmentStatus(segmentInfo, type) {\n    // alt audio doesn't manage timestamp offset\n    if (this.loaderType_ === 'main' && typeof segmentInfo.timestampOffset === 'number' && // in the case that we're handling partial data, we don't want to append an init\n    // segment for each chunk\n    !segmentInfo.changedTimestampOffset) {\n      // if the timestamp offset changed, the timeline may have changed, so we have to re-\n      // append init segments\n      this.appendInitSegment_ = {\n        audio: true,\n        video: true\n      };\n    }\n\n    if (this.playlistOfLastInitSegment_[type] !== segmentInfo.playlist) {\n      // make sure we append init segment on playlist changes, in case the media config\n      // changed\n      this.appendInitSegment_[type] = true;\n    }\n  };\n\n  _proto.getInitSegmentAndUpdateState_ = function getInitSegmentAndUpdateState_(_ref4) {\n    var type = _ref4.type,\n        initSegment = _ref4.initSegment,\n        map = _ref4.map,\n        playlist = _ref4.playlist; // \"The EXT-X-MAP tag specifies how to obtain the Media Initialization Section\n    // (Section 3) required to parse the applicable Media Segments.  It applies to every\n    // Media Segment that appears after it in the Playlist until the next EXT-X-MAP tag\n    // or until the end of the playlist.\"\n    // https://tools.ietf.org/html/draft-pantos-http-live-streaming-23#section-4.3.2.5\n\n    if (map) {\n      var id = initSegmentId(map);\n\n      if (this.activeInitSegmentId_ === id) {\n        // don't need to re-append the init segment if the ID matches\n        return null;\n      } // a map-specified init segment takes priority over any transmuxed (or otherwise\n      // obtained) init segment\n      //\n      // this also caches the init segment for later use\n\n\n      initSegment = this.initSegmentForMap(map, true).bytes;\n      this.activeInitSegmentId_ = id;\n    } // We used to always prepend init segments for video, however, that shouldn't be\n    // necessary. Instead, we should only append on changes, similar to what we've always\n    // done for audio. This is more important (though may not be that important) for\n    // frame-by-frame appending for LHLS, simply because of the increased quantity of\n    // appends.\n\n\n    if (initSegment && this.appendInitSegment_[type]) {\n      // Make sure we track the playlist that we last used for the init segment, so that\n      // we can re-append the init segment in the event that we get data from a new\n      // playlist. Discontinuities and track changes are handled in other sections.\n      this.playlistOfLastInitSegment_[type] = playlist; // Disable future init segment appends for this type. Until a change is necessary.\n\n      this.appendInitSegment_[type] = false; // we need to clear out the fmp4 active init segment id, since\n      // we are appending the muxer init segment\n\n      this.activeInitSegmentId_ = null;\n      return initSegment;\n    }\n\n    return null;\n  };\n\n  _proto.handleQuotaExceededError_ = function handleQuotaExceededError_(_ref5, error) {\n    var _this3 = this;\n\n    var segmentInfo = _ref5.segmentInfo,\n        type = _ref5.type,\n        bytes = _ref5.bytes;\n    var audioBuffered = this.sourceUpdater_.audioBuffered();\n    var videoBuffered = this.sourceUpdater_.videoBuffered(); // For now we're ignoring any notion of gaps in the buffer, but they, in theory,\n    // should be cleared out during the buffer removals. However, log in case it helps\n    // debug.\n\n    if (audioBuffered.length > 1) {\n      this.logger_('On QUOTA_EXCEEDED_ERR, found gaps in the audio buffer: ' + timeRangesToArray(audioBuffered).join(', '));\n    }\n\n    if (videoBuffered.length > 1) {\n      this.logger_('On QUOTA_EXCEEDED_ERR, found gaps in the video buffer: ' + timeRangesToArray(videoBuffered).join(', '));\n    }\n\n    var audioBufferStart = audioBuffered.length ? audioBuffered.start(0) : 0;\n    var audioBufferEnd = audioBuffered.length ? audioBuffered.end(audioBuffered.length - 1) : 0;\n    var videoBufferStart = videoBuffered.length ? videoBuffered.start(0) : 0;\n    var videoBufferEnd = videoBuffered.length ? videoBuffered.end(videoBuffered.length - 1) : 0;\n\n    if (audioBufferEnd - audioBufferStart <= MIN_BACK_BUFFER && videoBufferEnd - videoBufferStart <= MIN_BACK_BUFFER) {\n      // Can't remove enough buffer to make room for new segment (or the browser doesn't\n      // allow for appends of segments this size). In the future, it may be possible to\n      // split up the segment and append in pieces, but for now, error out this playlist\n      // in an attempt to switch to a more manageable rendition.\n      this.logger_('On QUOTA_EXCEEDED_ERR, single segment too large to append to ' + 'buffer, triggering an error. ' + (\"Appended byte length: \" + bytes.byteLength + \", \") + (\"audio buffer: \" + timeRangesToArray(audioBuffered).join(', ') + \", \") + (\"video buffer: \" + timeRangesToArray(videoBuffered).join(', ') + \", \"));\n      this.error({\n        message: 'Quota exceeded error with append of a single segment of content',\n        excludeUntil: Infinity\n      });\n      this.trigger('error');\n      return;\n    } // To try to resolve the quota exceeded error, clear back buffer and retry. This means\n    // that the segment-loader should block on future events until this one is handled, so\n    // that it doesn't keep moving onto further segments. Adding the call to the call\n    // queue will prevent further appends until waitingOnRemove_ and\n    // quotaExceededErrorRetryTimeout_ are cleared.\n    //\n    // Note that this will only block the current loader. In the case of demuxed content,\n    // the other load may keep filling as fast as possible. In practice, this should be\n    // OK, as it is a rare case when either audio has a high enough bitrate to fill up a\n    // source buffer, or video fills without enough room for audio to append (and without\n    // the availability of clearing out seconds of back buffer to make room for audio).\n    // But it might still be good to handle this case in the future as a TODO.\n\n\n    this.waitingOnRemove_ = true;\n    this.callQueue_.push(this.appendToSourceBuffer_.bind(this, {\n      segmentInfo: segmentInfo,\n      type: type,\n      bytes: bytes\n    }));\n    var currentTime = this.currentTime_(); // Try to remove as much audio and video as possible to make room for new content\n    // before retrying.\n\n    var timeToRemoveUntil = currentTime - MIN_BACK_BUFFER;\n    this.logger_(\"On QUOTA_EXCEEDED_ERR, removing audio/video from 0 to \" + timeToRemoveUntil);\n    this.remove(0, timeToRemoveUntil, function () {\n      _this3.logger_(\"On QUOTA_EXCEEDED_ERR, retrying append in \" + MIN_BACK_BUFFER + \"s\");\n\n      _this3.waitingOnRemove_ = false; // wait the length of time alotted in the back buffer to prevent wasted\n      // attempts (since we can't clear less than the minimum)\n\n      _this3.quotaExceededErrorRetryTimeout_ = window.setTimeout(function () {\n        _this3.logger_('On QUOTA_EXCEEDED_ERR, re-processing call queue');\n\n        _this3.quotaExceededErrorRetryTimeout_ = null;\n\n        _this3.processCallQueue_();\n      }, MIN_BACK_BUFFER * 1000);\n    }, true);\n  };\n\n  _proto.handleAppendError_ = function handleAppendError_(_ref6, error) {\n    var segmentInfo = _ref6.segmentInfo,\n        type = _ref6.type,\n        bytes = _ref6.bytes; // if there's no error, nothing to do\n\n    if (!error) {\n      return;\n    }\n\n    if (error.code === QUOTA_EXCEEDED_ERR) {\n      this.handleQuotaExceededError_({\n        segmentInfo: segmentInfo,\n        type: type,\n        bytes: bytes\n      }); // A quota exceeded error should be recoverable with a future re-append, so no need\n      // to trigger an append error.\n\n      return;\n    }\n\n    this.logger_('Received non QUOTA_EXCEEDED_ERR on append', error);\n    this.error(type + \" append of \" + bytes.length + \"b failed for segment \" + (\"#\" + segmentInfo.mediaIndex + \" in playlist \" + segmentInfo.playlist.id)); // If an append errors, we often can't recover.\n    // (see https://w3c.github.io/media-source/#sourcebuffer-append-error).\n    //\n    // Trigger a special error so that it can be handled separately from normal,\n    // recoverable errors.\n\n    this.trigger('appenderror');\n  };\n\n  _proto.appendToSourceBuffer_ = function appendToSourceBuffer_(_ref7) {\n    var segmentInfo = _ref7.segmentInfo,\n        type = _ref7.type,\n        initSegment = _ref7.initSegment,\n        data = _ref7.data,\n        bytes = _ref7.bytes; // If this is a re-append, bytes were already created and don't need to be recreated\n\n    if (!bytes) {\n      var segments = [data];\n      var byteLength = data.byteLength;\n\n      if (initSegment) {\n        // if the media initialization segment is changing, append it before the content\n        // segment\n        segments.unshift(initSegment);\n        byteLength += initSegment.byteLength;\n      } // Technically we should be OK appending the init segment separately, however, we\n      // haven't yet tested that, and prepending is how we have always done things.\n\n\n      bytes = concatSegments({\n        bytes: byteLength,\n        segments: segments\n      });\n    }\n\n    this.sourceUpdater_.appendBuffer({\n      segmentInfo: segmentInfo,\n      type: type,\n      bytes: bytes\n    }, this.handleAppendError_.bind(this, {\n      segmentInfo: segmentInfo,\n      type: type,\n      bytes: bytes\n    }));\n  };\n\n  _proto.handleSegmentTimingInfo_ = function handleSegmentTimingInfo_(type, requestId, segmentTimingInfo) {\n    if (!this.pendingSegment_ || requestId !== this.pendingSegment_.requestId) {\n      return;\n    }\n\n    var segment = this.pendingSegment_.segment;\n    var timingInfoProperty = type + \"TimingInfo\";\n\n    if (!segment[timingInfoProperty]) {\n      segment[timingInfoProperty] = {};\n    }\n\n    segment[timingInfoProperty].transmuxerPrependedSeconds = segmentTimingInfo.prependedContentDuration || 0;\n    segment[timingInfoProperty].transmuxedPresentationStart = segmentTimingInfo.start.presentation;\n    segment[timingInfoProperty].transmuxedDecodeStart = segmentTimingInfo.start.decode;\n    segment[timingInfoProperty].transmuxedPresentationEnd = segmentTimingInfo.end.presentation;\n    segment[timingInfoProperty].transmuxedDecodeEnd = segmentTimingInfo.end.decode; // mainly used as a reference for debugging\n\n    segment[timingInfoProperty].baseMediaDecodeTime = segmentTimingInfo.baseMediaDecodeTime;\n  };\n\n  _proto.appendData_ = function appendData_(segmentInfo, result) {\n    var type = result.type,\n        data = result.data;\n\n    if (!data || !data.byteLength) {\n      return;\n    }\n\n    if (type === 'audio' && this.audioDisabled_) {\n      return;\n    }\n\n    var initSegment = this.getInitSegmentAndUpdateState_({\n      type: type,\n      initSegment: result.initSegment,\n      playlist: segmentInfo.playlist,\n      map: segmentInfo.isFmp4 ? segmentInfo.segment.map : null\n    });\n    this.appendToSourceBuffer_({\n      segmentInfo: segmentInfo,\n      type: type,\n      initSegment: initSegment,\n      data: data\n    });\n  }\n  /**\n   * load a specific segment from a request into the buffer\n   *\n   * @private\n   */\n  ;\n\n  _proto.loadSegment_ = function loadSegment_(segmentInfo) {\n    var _this4 = this;\n\n    this.state = 'WAITING';\n    this.pendingSegment_ = segmentInfo;\n    this.trimBackBuffer_(segmentInfo);\n\n    if (typeof segmentInfo.timestampOffset === 'number') {\n      if (this.transmuxer_) {\n        this.transmuxer_.postMessage({\n          action: 'clearAllMp4Captions'\n        });\n      }\n    }\n\n    if (!this.hasEnoughInfoToLoad_()) {\n      this.loadQueue_.push(function () {\n        // regenerate the audioAppendStart, timestampOffset, etc as they\n        // may have changed since this function was added to the queue.\n        var options = _extends({}, segmentInfo, {\n          forceTimestampOffset: true\n        });\n\n        _extends(segmentInfo, _this4.generateSegmentInfo_(options));\n\n        _this4.isPendingTimestampOffset_ = false;\n\n        _this4.updateTransmuxerAndRequestSegment_(segmentInfo);\n      });\n      return;\n    }\n\n    this.updateTransmuxerAndRequestSegment_(segmentInfo);\n  };\n\n  _proto.updateTransmuxerAndRequestSegment_ = function updateTransmuxerAndRequestSegment_(segmentInfo) {\n    var _this5 = this; // We'll update the source buffer's timestamp offset once we have transmuxed data, but\n    // the transmuxer still needs to be updated before then.\n    //\n    // Even though keepOriginalTimestamps is set to true for the transmuxer, timestamp\n    // offset must be passed to the transmuxer for stream correcting adjustments.\n\n\n    if (this.shouldUpdateTransmuxerTimestampOffset_(segmentInfo.timestampOffset)) {\n      this.gopBuffer_.length = 0; // gopsToAlignWith was set before the GOP buffer was cleared\n\n      segmentInfo.gopsToAlignWith = [];\n      this.timeMapping_ = 0; // reset values in the transmuxer since a discontinuity should start fresh\n\n      this.transmuxer_.postMessage({\n        action: 'reset'\n      });\n      this.transmuxer_.postMessage({\n        action: 'setTimestampOffset',\n        timestampOffset: segmentInfo.timestampOffset\n      });\n    }\n\n    var simpleSegment = this.createSimplifiedSegmentObj_(segmentInfo);\n    var isEndOfStream = this.isEndOfStream_(segmentInfo.mediaIndex, segmentInfo.playlist, segmentInfo.partIndex);\n    var isWalkingForward = this.mediaIndex !== null;\n    var isDiscontinuity = segmentInfo.timeline !== this.currentTimeline_ && // currentTimeline starts at -1, so we shouldn't end the timeline switching to 0,\n    // the first timeline\n    segmentInfo.timeline > 0;\n    var isEndOfTimeline = isEndOfStream || isWalkingForward && isDiscontinuity;\n    this.logger_(\"Requesting \" + segmentInfoString(segmentInfo)); // If there's an init segment associated with this segment, but it is not cached (identified by a lack of bytes),\n    // then this init segment has never been seen before and should be appended.\n    //\n    // At this point the content type (audio/video or both) is not yet known, but it should be safe to set\n    // both to true and leave the decision of whether to append the init segment to append time.\n\n    if (simpleSegment.map && !simpleSegment.map.bytes) {\n      this.logger_('going to request init segment.');\n      this.appendInitSegment_ = {\n        video: true,\n        audio: true\n      };\n    }\n\n    segmentInfo.abortRequests = mediaSegmentRequest({\n      xhr: this.vhs_.xhr,\n      xhrOptions: this.xhrOptions_,\n      decryptionWorker: this.decrypter_,\n      segment: simpleSegment,\n      abortFn: this.handleAbort_.bind(this, segmentInfo),\n      progressFn: this.handleProgress_.bind(this),\n      trackInfoFn: this.handleTrackInfo_.bind(this),\n      timingInfoFn: this.handleTimingInfo_.bind(this),\n      videoSegmentTimingInfoFn: this.handleSegmentTimingInfo_.bind(this, 'video', segmentInfo.requestId),\n      audioSegmentTimingInfoFn: this.handleSegmentTimingInfo_.bind(this, 'audio', segmentInfo.requestId),\n      captionsFn: this.handleCaptions_.bind(this),\n      isEndOfTimeline: isEndOfTimeline,\n      endedTimelineFn: function endedTimelineFn() {\n        _this5.logger_('received endedtimeline callback');\n      },\n      id3Fn: this.handleId3_.bind(this),\n      dataFn: this.handleData_.bind(this),\n      doneFn: this.segmentRequestFinished_.bind(this),\n      onTransmuxerLog: function onTransmuxerLog(_ref8) {\n        var message = _ref8.message,\n            level = _ref8.level,\n            stream = _ref8.stream;\n\n        _this5.logger_(segmentInfoString(segmentInfo) + \" logged from transmuxer stream \" + stream + \" as a \" + level + \": \" + message);\n      }\n    });\n  }\n  /**\n   * trim the back buffer so that we don't have too much data\n   * in the source buffer\n   *\n   * @private\n   *\n   * @param {Object} segmentInfo - the current segment\n   */\n  ;\n\n  _proto.trimBackBuffer_ = function trimBackBuffer_(segmentInfo) {\n    var removeToTime = safeBackBufferTrimTime(this.seekable_(), this.currentTime_(), this.playlist_.targetDuration || 10); // Chrome has a hard limit of 150MB of\n    // buffer and a very conservative \"garbage collector\"\n    // We manually clear out the old buffer to ensure\n    // we don't trigger the QuotaExceeded error\n    // on the source buffer during subsequent appends\n\n    if (removeToTime > 0) {\n      this.remove(0, removeToTime);\n    }\n  }\n  /**\n   * created a simplified copy of the segment object with just the\n   * information necessary to perform the XHR and decryption\n   *\n   * @private\n   *\n   * @param {Object} segmentInfo - the current segment\n   * @return {Object} a simplified segment object copy\n   */\n  ;\n\n  _proto.createSimplifiedSegmentObj_ = function createSimplifiedSegmentObj_(segmentInfo) {\n    var segment = segmentInfo.segment;\n    var part = segmentInfo.part;\n    var simpleSegment = {\n      resolvedUri: part ? part.resolvedUri : segment.resolvedUri,\n      byterange: part ? part.byterange : segment.byterange,\n      requestId: segmentInfo.requestId,\n      transmuxer: segmentInfo.transmuxer,\n      audioAppendStart: segmentInfo.audioAppendStart,\n      gopsToAlignWith: segmentInfo.gopsToAlignWith,\n      part: segmentInfo.part\n    };\n    var previousSegment = segmentInfo.playlist.segments[segmentInfo.mediaIndex - 1];\n\n    if (previousSegment && previousSegment.timeline === segment.timeline) {\n      // The baseStartTime of a segment is used to handle rollover when probing the TS\n      // segment to retrieve timing information. Since the probe only looks at the media's\n      // times (e.g., PTS and DTS values of the segment), and doesn't consider the\n      // player's time (e.g., player.currentTime()), baseStartTime should reflect the\n      // media time as well. transmuxedDecodeEnd represents the end time of a segment, in\n      // seconds of media time, so should be used here. The previous segment is used since\n      // the end of the previous segment should represent the beginning of the current\n      // segment, so long as they are on the same timeline.\n      if (previousSegment.videoTimingInfo) {\n        simpleSegment.baseStartTime = previousSegment.videoTimingInfo.transmuxedDecodeEnd;\n      } else if (previousSegment.audioTimingInfo) {\n        simpleSegment.baseStartTime = previousSegment.audioTimingInfo.transmuxedDecodeEnd;\n      }\n    }\n\n    if (segment.key) {\n      // if the media sequence is greater than 2^32, the IV will be incorrect\n      // assuming 10s segments, that would be about 1300 years\n      var iv = segment.key.iv || new Uint32Array([0, 0, 0, segmentInfo.mediaIndex + segmentInfo.playlist.mediaSequence]);\n      simpleSegment.key = this.segmentKey(segment.key);\n      simpleSegment.key.iv = iv;\n    }\n\n    if (segment.map) {\n      simpleSegment.map = this.initSegmentForMap(segment.map);\n    }\n\n    return simpleSegment;\n  };\n\n  _proto.saveTransferStats_ = function saveTransferStats_(stats) {\n    // every request counts as a media request even if it has been aborted\n    // or canceled due to a timeout\n    this.mediaRequests += 1;\n\n    if (stats) {\n      this.mediaBytesTransferred += stats.bytesReceived;\n      this.mediaTransferDuration += stats.roundTripTime;\n    }\n  };\n\n  _proto.saveBandwidthRelatedStats_ = function saveBandwidthRelatedStats_(duration, stats) {\n    // byteLength will be used for throughput, and should be based on bytes receieved,\n    // which we only know at the end of the request and should reflect total bytes\n    // downloaded rather than just bytes processed from components of the segment\n    this.pendingSegment_.byteLength = stats.bytesReceived;\n\n    if (duration < MIN_SEGMENT_DURATION_TO_SAVE_STATS) {\n      this.logger_(\"Ignoring segment's bandwidth because its duration of \" + duration + (\" is less than the min to record \" + MIN_SEGMENT_DURATION_TO_SAVE_STATS));\n      return;\n    }\n\n    this.bandwidth = stats.bandwidth;\n    this.roundTrip = stats.roundTripTime;\n  };\n\n  _proto.handleTimeout_ = function handleTimeout_() {\n    // although the VTT segment loader bandwidth isn't really used, it's good to\n    // maintain functinality between segment loaders\n    this.mediaRequestsTimedout += 1;\n    this.bandwidth = 1;\n    this.roundTrip = NaN;\n    this.trigger('bandwidthupdate');\n  }\n  /**\n   * Handle the callback from the segmentRequest function and set the\n   * associated SegmentLoader state and errors if necessary\n   *\n   * @private\n   */\n  ;\n\n  _proto.segmentRequestFinished_ = function segmentRequestFinished_(error, simpleSegment, result) {\n    // TODO handle special cases, e.g., muxed audio/video but only audio in the segment\n    // check the call queue directly since this function doesn't need to deal with any\n    // data, and can continue even if the source buffers are not set up and we didn't get\n    // any data from the segment\n    if (this.callQueue_.length) {\n      this.callQueue_.push(this.segmentRequestFinished_.bind(this, error, simpleSegment, result));\n      return;\n    }\n\n    this.saveTransferStats_(simpleSegment.stats); // The request was aborted and the SegmentLoader has already been reset\n\n    if (!this.pendingSegment_) {\n      return;\n    } // the request was aborted and the SegmentLoader has already started\n    // another request. this can happen when the timeout for an aborted\n    // request triggers due to a limitation in the XHR library\n    // do not count this as any sort of request or we risk double-counting\n\n\n    if (simpleSegment.requestId !== this.pendingSegment_.requestId) {\n      return;\n    } // an error occurred from the active pendingSegment_ so reset everything\n\n\n    if (error) {\n      this.pendingSegment_ = null;\n      this.state = 'READY'; // aborts are not a true error condition and nothing corrective needs to be done\n\n      if (error.code === REQUEST_ERRORS.ABORTED) {\n        return;\n      }\n\n      this.pause(); // the error is really just that at least one of the requests timed-out\n      // set the bandwidth to a very low value and trigger an ABR switch to\n      // take emergency action\n\n      if (error.code === REQUEST_ERRORS.TIMEOUT) {\n        this.handleTimeout_();\n        return;\n      } // if control-flow has arrived here, then the error is real\n      // emit an error event to blacklist the current playlist\n\n\n      this.mediaRequestsErrored += 1;\n      this.error(error);\n      this.trigger('error');\n      return;\n    }\n\n    var segmentInfo = this.pendingSegment_; // the response was a success so set any bandwidth stats the request\n    // generated for ABR purposes\n\n    this.saveBandwidthRelatedStats_(segmentInfo.duration, simpleSegment.stats);\n    segmentInfo.endOfAllRequests = simpleSegment.endOfAllRequests;\n\n    if (result.gopInfo) {\n      this.gopBuffer_ = updateGopBuffer(this.gopBuffer_, result.gopInfo, this.safeAppend_);\n    } // Although we may have already started appending on progress, we shouldn't switch the\n    // state away from loading until we are officially done loading the segment data.\n\n\n    this.state = 'APPENDING'; // used for testing\n\n    this.trigger('appending');\n    this.waitForAppendsToComplete_(segmentInfo);\n  };\n\n  _proto.setTimeMapping_ = function setTimeMapping_(timeline) {\n    var timelineMapping = this.syncController_.mappingForTimeline(timeline);\n\n    if (timelineMapping !== null) {\n      this.timeMapping_ = timelineMapping;\n    }\n  };\n\n  _proto.updateMediaSecondsLoaded_ = function updateMediaSecondsLoaded_(segment) {\n    if (typeof segment.start === 'number' && typeof segment.end === 'number') {\n      this.mediaSecondsLoaded += segment.end - segment.start;\n    } else {\n      this.mediaSecondsLoaded += segment.duration;\n    }\n  };\n\n  _proto.shouldUpdateTransmuxerTimestampOffset_ = function shouldUpdateTransmuxerTimestampOffset_(timestampOffset) {\n    if (timestampOffset === null) {\n      return false;\n    } // note that we're potentially using the same timestamp offset for both video and\n    // audio\n\n\n    if (this.loaderType_ === 'main' && timestampOffset !== this.sourceUpdater_.videoTimestampOffset()) {\n      return true;\n    }\n\n    if (!this.audioDisabled_ && timestampOffset !== this.sourceUpdater_.audioTimestampOffset()) {\n      return true;\n    }\n\n    return false;\n  };\n\n  _proto.trueSegmentStart_ = function trueSegmentStart_(_ref9) {\n    var currentStart = _ref9.currentStart,\n        playlist = _ref9.playlist,\n        mediaIndex = _ref9.mediaIndex,\n        firstVideoFrameTimeForData = _ref9.firstVideoFrameTimeForData,\n        currentVideoTimestampOffset = _ref9.currentVideoTimestampOffset,\n        useVideoTimingInfo = _ref9.useVideoTimingInfo,\n        videoTimingInfo = _ref9.videoTimingInfo,\n        audioTimingInfo = _ref9.audioTimingInfo;\n\n    if (typeof currentStart !== 'undefined') {\n      // if start was set once, keep using it\n      return currentStart;\n    }\n\n    if (!useVideoTimingInfo) {\n      return audioTimingInfo.start;\n    }\n\n    var previousSegment = playlist.segments[mediaIndex - 1]; // The start of a segment should be the start of the first full frame contained\n    // within that segment. Since the transmuxer maintains a cache of incomplete data\n    // from and/or the last frame seen, the start time may reflect a frame that starts\n    // in the previous segment. Check for that case and ensure the start time is\n    // accurate for the segment.\n\n    if (mediaIndex === 0 || !previousSegment || typeof previousSegment.start === 'undefined' || previousSegment.end !== firstVideoFrameTimeForData + currentVideoTimestampOffset) {\n      return firstVideoFrameTimeForData;\n    }\n\n    return videoTimingInfo.start;\n  };\n\n  _proto.waitForAppendsToComplete_ = function waitForAppendsToComplete_(segmentInfo) {\n    var trackInfo = this.getCurrentMediaInfo_(segmentInfo);\n\n    if (!trackInfo) {\n      this.error({\n        message: 'No starting media returned, likely due to an unsupported media format.',\n        blacklistDuration: Infinity\n      });\n      this.trigger('error');\n      return;\n    } // Although transmuxing is done, appends may not yet be finished. Throw a marker\n    // on each queue this loader is responsible for to ensure that the appends are\n    // complete.\n\n\n    var hasAudio = trackInfo.hasAudio,\n        hasVideo = trackInfo.hasVideo,\n        isMuxed = trackInfo.isMuxed;\n    var waitForVideo = this.loaderType_ === 'main' && hasVideo;\n    var waitForAudio = !this.audioDisabled_ && hasAudio && !isMuxed;\n    segmentInfo.waitingOnAppends = 0; // segments with no data\n\n    if (!segmentInfo.hasAppendedData_) {\n      if (!segmentInfo.timingInfo && typeof segmentInfo.timestampOffset === 'number') {\n        // When there's no audio or video data in the segment, there's no audio or video\n        // timing information.\n        //\n        // If there's no audio or video timing information, then the timestamp offset\n        // can't be adjusted to the appropriate value for the transmuxer and source\n        // buffers.\n        //\n        // Therefore, the next segment should be used to set the timestamp offset.\n        this.isPendingTimestampOffset_ = true;\n      } // override settings for metadata only segments\n\n\n      segmentInfo.timingInfo = {\n        start: 0\n      };\n      segmentInfo.waitingOnAppends++;\n\n      if (!this.isPendingTimestampOffset_) {\n        // update the timestampoffset\n        this.updateSourceBufferTimestampOffset_(segmentInfo); // make sure the metadata queue is processed even though we have\n        // no video/audio data.\n\n        this.processMetadataQueue_();\n      } // append is \"done\" instantly with no data.\n\n\n      this.checkAppendsDone_(segmentInfo);\n      return;\n    } // Since source updater could call back synchronously, do the increments first.\n\n\n    if (waitForVideo) {\n      segmentInfo.waitingOnAppends++;\n    }\n\n    if (waitForAudio) {\n      segmentInfo.waitingOnAppends++;\n    }\n\n    if (waitForVideo) {\n      this.sourceUpdater_.videoQueueCallback(this.checkAppendsDone_.bind(this, segmentInfo));\n    }\n\n    if (waitForAudio) {\n      this.sourceUpdater_.audioQueueCallback(this.checkAppendsDone_.bind(this, segmentInfo));\n    }\n  };\n\n  _proto.checkAppendsDone_ = function checkAppendsDone_(segmentInfo) {\n    if (this.checkForAbort_(segmentInfo.requestId)) {\n      return;\n    }\n\n    segmentInfo.waitingOnAppends--;\n\n    if (segmentInfo.waitingOnAppends === 0) {\n      this.handleAppendsDone_();\n    }\n  };\n\n  _proto.checkForIllegalMediaSwitch = function checkForIllegalMediaSwitch(trackInfo) {\n    var illegalMediaSwitchError = illegalMediaSwitch(this.loaderType_, this.getCurrentMediaInfo_(), trackInfo);\n\n    if (illegalMediaSwitchError) {\n      this.error({\n        message: illegalMediaSwitchError,\n        blacklistDuration: Infinity\n      });\n      this.trigger('error');\n      return true;\n    }\n\n    return false;\n  };\n\n  _proto.updateSourceBufferTimestampOffset_ = function updateSourceBufferTimestampOffset_(segmentInfo) {\n    if (segmentInfo.timestampOffset === null || // we don't yet have the start for whatever media type (video or audio) has\n    // priority, timing-wise, so we must wait\n    typeof segmentInfo.timingInfo.start !== 'number' || // already updated the timestamp offset for this segment\n    segmentInfo.changedTimestampOffset || // the alt audio loader should not be responsible for setting the timestamp offset\n    this.loaderType_ !== 'main') {\n      return;\n    }\n\n    var didChange = false; // Primary timing goes by video, and audio is trimmed in the transmuxer, meaning that\n    // the timing info here comes from video. In the event that the audio is longer than\n    // the video, this will trim the start of the audio.\n    // This also trims any offset from 0 at the beginning of the media\n\n    segmentInfo.timestampOffset -= segmentInfo.timingInfo.start; // In the event that there are part segment downloads, each will try to update the\n    // timestamp offset. Retaining this bit of state prevents us from updating in the\n    // future (within the same segment), however, there may be a better way to handle it.\n\n    segmentInfo.changedTimestampOffset = true;\n\n    if (segmentInfo.timestampOffset !== this.sourceUpdater_.videoTimestampOffset()) {\n      this.sourceUpdater_.videoTimestampOffset(segmentInfo.timestampOffset);\n      didChange = true;\n    }\n\n    if (segmentInfo.timestampOffset !== this.sourceUpdater_.audioTimestampOffset()) {\n      this.sourceUpdater_.audioTimestampOffset(segmentInfo.timestampOffset);\n      didChange = true;\n    }\n\n    if (didChange) {\n      this.trigger('timestampoffset');\n    }\n  };\n\n  _proto.updateTimingInfoEnd_ = function updateTimingInfoEnd_(segmentInfo) {\n    segmentInfo.timingInfo = segmentInfo.timingInfo || {};\n    var trackInfo = this.getMediaInfo_();\n    var useVideoTimingInfo = this.loaderType_ === 'main' && trackInfo && trackInfo.hasVideo;\n    var prioritizedTimingInfo = useVideoTimingInfo && segmentInfo.videoTimingInfo ? segmentInfo.videoTimingInfo : segmentInfo.audioTimingInfo;\n\n    if (!prioritizedTimingInfo) {\n      return;\n    }\n\n    segmentInfo.timingInfo.end = typeof prioritizedTimingInfo.end === 'number' ? // End time may not exist in a case where we aren't parsing the full segment (one\n    // current example is the case of fmp4), so use the rough duration to calculate an\n    // end time.\n    prioritizedTimingInfo.end : prioritizedTimingInfo.start + segmentInfo.duration;\n  }\n  /**\n   * callback to run when appendBuffer is finished. detects if we are\n   * in a good state to do things with the data we got, or if we need\n   * to wait for more\n   *\n   * @private\n   */\n  ;\n\n  _proto.handleAppendsDone_ = function handleAppendsDone_() {\n    // appendsdone can cause an abort\n    if (this.pendingSegment_) {\n      this.trigger('appendsdone');\n    }\n\n    if (!this.pendingSegment_) {\n      this.state = 'READY'; // TODO should this move into this.checkForAbort to speed up requests post abort in\n      // all appending cases?\n\n      if (!this.paused()) {\n        this.monitorBuffer_();\n      }\n\n      return;\n    }\n\n    var segmentInfo = this.pendingSegment_; // Now that the end of the segment has been reached, we can set the end time. It's\n    // best to wait until all appends are done so we're sure that the primary media is\n    // finished (and we have its end time).\n\n    this.updateTimingInfoEnd_(segmentInfo);\n\n    if (this.shouldSaveSegmentTimingInfo_) {\n      // Timeline mappings should only be saved for the main loader. This is for multiple\n      // reasons:\n      //\n      // 1) Only one mapping is saved per timeline, meaning that if both the audio loader\n      //    and the main loader try to save the timeline mapping, whichever comes later\n      //    will overwrite the first. In theory this is OK, as the mappings should be the\n      //    same, however, it breaks for (2)\n      // 2) In the event of a live stream, the initial live point will make for a somewhat\n      //    arbitrary mapping. If audio and video streams are not perfectly in-sync, then\n      //    the mapping will be off for one of the streams, dependent on which one was\n      //    first saved (see (1)).\n      // 3) Primary timing goes by video in VHS, so the mapping should be video.\n      //\n      // Since the audio loader will wait for the main loader to load the first segment,\n      // the main loader will save the first timeline mapping, and ensure that there won't\n      // be a case where audio loads two segments without saving a mapping (thus leading\n      // to missing segment timing info).\n      this.syncController_.saveSegmentTimingInfo({\n        segmentInfo: segmentInfo,\n        shouldSaveTimelineMapping: this.loaderType_ === 'main'\n      });\n    }\n\n    var segmentDurationMessage = getTroublesomeSegmentDurationMessage(segmentInfo, this.sourceType_);\n\n    if (segmentDurationMessage) {\n      if (segmentDurationMessage.severity === 'warn') {\n        videojs.log.warn(segmentDurationMessage.message);\n      } else {\n        this.logger_(segmentDurationMessage.message);\n      }\n    }\n\n    this.recordThroughput_(segmentInfo);\n    this.pendingSegment_ = null;\n    this.state = 'READY';\n\n    if (segmentInfo.isSyncRequest) {\n      this.trigger('syncinfoupdate'); // if the sync request was not appended\n      // then it was not the correct segment.\n      // throw it away and use the data it gave us\n      // to get the correct one.\n\n      if (!segmentInfo.hasAppendedData_) {\n        this.logger_(\"Throwing away un-appended sync request \" + segmentInfoString(segmentInfo));\n        return;\n      }\n    }\n\n    this.logger_(\"Appended \" + segmentInfoString(segmentInfo));\n    this.addSegmentMetadataCue_(segmentInfo);\n    this.fetchAtBuffer_ = true;\n\n    if (this.currentTimeline_ !== segmentInfo.timeline) {\n      this.timelineChangeController_.lastTimelineChange({\n        type: this.loaderType_,\n        from: this.currentTimeline_,\n        to: segmentInfo.timeline\n      }); // If audio is not disabled, the main segment loader is responsible for updating\n      // the audio timeline as well. If the content is video only, this won't have any\n      // impact.\n\n      if (this.loaderType_ === 'main' && !this.audioDisabled_) {\n        this.timelineChangeController_.lastTimelineChange({\n          type: 'audio',\n          from: this.currentTimeline_,\n          to: segmentInfo.timeline\n        });\n      }\n    }\n\n    this.currentTimeline_ = segmentInfo.timeline; // We must update the syncinfo to recalculate the seekable range before\n    // the following conditional otherwise it may consider this a bad \"guess\"\n    // and attempt to resync when the post-update seekable window and live\n    // point would mean that this was the perfect segment to fetch\n\n    this.trigger('syncinfoupdate');\n    var segment = segmentInfo.segment; // If we previously appended a segment that ends more than 3 targetDurations before\n    // the currentTime_ that means that our conservative guess was too conservative.\n    // In that case, reset the loader state so that we try to use any information gained\n    // from the previous request to create a new, more accurate, sync-point.\n\n    if (segment.end && this.currentTime_() - segment.end > segmentInfo.playlist.targetDuration * 3) {\n      this.resetEverything();\n      return;\n    }\n\n    var isWalkingForward = this.mediaIndex !== null; // Don't do a rendition switch unless we have enough time to get a sync segment\n    // and conservatively guess\n\n    if (isWalkingForward) {\n      this.trigger('bandwidthupdate');\n    }\n\n    this.trigger('progress');\n    this.mediaIndex = segmentInfo.mediaIndex;\n    this.partIndex = segmentInfo.partIndex; // any time an update finishes and the last segment is in the\n    // buffer, end the stream. this ensures the \"ended\" event will\n    // fire if playback reaches that point.\n\n    if (this.isEndOfStream_(segmentInfo.mediaIndex, segmentInfo.playlist, segmentInfo.partIndex)) {\n      this.endOfStream();\n    } // used for testing\n\n\n    this.trigger('appended');\n\n    if (segmentInfo.hasAppendedData_) {\n      this.mediaAppends++;\n    }\n\n    if (!this.paused()) {\n      this.monitorBuffer_();\n    }\n  }\n  /**\n   * Records the current throughput of the decrypt, transmux, and append\n   * portion of the semgment pipeline. `throughput.rate` is a the cumulative\n   * moving average of the throughput. `throughput.count` is the number of\n   * data points in the average.\n   *\n   * @private\n   * @param {Object} segmentInfo the object returned by loadSegment\n   */\n  ;\n\n  _proto.recordThroughput_ = function recordThroughput_(segmentInfo) {\n    if (segmentInfo.duration < MIN_SEGMENT_DURATION_TO_SAVE_STATS) {\n      this.logger_(\"Ignoring segment's throughput because its duration of \" + segmentInfo.duration + (\" is less than the min to record \" + MIN_SEGMENT_DURATION_TO_SAVE_STATS));\n      return;\n    }\n\n    var rate = this.throughput.rate; // Add one to the time to ensure that we don't accidentally attempt to divide\n    // by zero in the case where the throughput is ridiculously high\n\n    var segmentProcessingTime = Date.now() - segmentInfo.endOfAllRequests + 1; // Multiply by 8000 to convert from bytes/millisecond to bits/second\n\n    var segmentProcessingThroughput = Math.floor(segmentInfo.byteLength / segmentProcessingTime * 8 * 1000); // This is just a cumulative moving average calculation:\n    //   newAvg = oldAvg + (sample - oldAvg) / (sampleCount + 1)\n\n    this.throughput.rate += (segmentProcessingThroughput - rate) / ++this.throughput.count;\n  }\n  /**\n   * Adds a cue to the segment-metadata track with some metadata information about the\n   * segment\n   *\n   * @private\n   * @param {Object} segmentInfo\n   *        the object returned by loadSegment\n   * @method addSegmentMetadataCue_\n   */\n  ;\n\n  _proto.addSegmentMetadataCue_ = function addSegmentMetadataCue_(segmentInfo) {\n    if (!this.segmentMetadataTrack_) {\n      return;\n    }\n\n    var segment = segmentInfo.segment;\n    var start = segment.start;\n    var end = segment.end; // Do not try adding the cue if the start and end times are invalid.\n\n    if (!finite(start) || !finite(end)) {\n      return;\n    }\n\n    removeCuesFromTrack(start, end, this.segmentMetadataTrack_);\n    var Cue = window.WebKitDataCue || window.VTTCue;\n    var value = {\n      custom: segment.custom,\n      dateTimeObject: segment.dateTimeObject,\n      dateTimeString: segment.dateTimeString,\n      bandwidth: segmentInfo.playlist.attributes.BANDWIDTH,\n      resolution: segmentInfo.playlist.attributes.RESOLUTION,\n      codecs: segmentInfo.playlist.attributes.CODECS,\n      byteLength: segmentInfo.byteLength,\n      uri: segmentInfo.uri,\n      timeline: segmentInfo.timeline,\n      playlist: segmentInfo.playlist.id,\n      start: start,\n      end: end\n    };\n    var data = JSON.stringify(value);\n    var cue = new Cue(start, end, data); // Attach the metadata to the value property of the cue to keep consistency between\n    // the differences of WebKitDataCue in safari and VTTCue in other browsers\n\n    cue.value = value;\n    this.segmentMetadataTrack_.addCue(cue);\n  };\n\n  return SegmentLoader;\n}(videojs.EventTarget);\n\nfunction noop() {}\n\nvar toTitleCase = function toTitleCase(string) {\n  if (typeof string !== 'string') {\n    return string;\n  }\n\n  return string.replace(/./, function (w) {\n    return w.toUpperCase();\n  });\n};\n\nvar bufferTypes = ['video', 'audio'];\n\nvar _updating = function updating(type, sourceUpdater) {\n  var sourceBuffer = sourceUpdater[type + \"Buffer\"];\n  return sourceBuffer && sourceBuffer.updating || sourceUpdater.queuePending[type];\n};\n\nvar nextQueueIndexOfType = function nextQueueIndexOfType(type, queue) {\n  for (var i = 0; i < queue.length; i++) {\n    var queueEntry = queue[i];\n\n    if (queueEntry.type === 'mediaSource') {\n      // If the next entry is a media source entry (uses multiple source buffers), block\n      // processing to allow it to go through first.\n      return null;\n    }\n\n    if (queueEntry.type === type) {\n      return i;\n    }\n  }\n\n  return null;\n};\n\nvar shiftQueue = function shiftQueue(type, sourceUpdater) {\n  if (sourceUpdater.queue.length === 0) {\n    return;\n  }\n\n  var queueIndex = 0;\n  var queueEntry = sourceUpdater.queue[queueIndex];\n\n  if (queueEntry.type === 'mediaSource') {\n    if (!sourceUpdater.updating() && sourceUpdater.mediaSource.readyState !== 'closed') {\n      sourceUpdater.queue.shift();\n      queueEntry.action(sourceUpdater);\n\n      if (queueEntry.doneFn) {\n        queueEntry.doneFn();\n      } // Only specific source buffer actions must wait for async updateend events. Media\n      // Source actions process synchronously. Therefore, both audio and video source\n      // buffers are now clear to process the next queue entries.\n\n\n      shiftQueue('audio', sourceUpdater);\n      shiftQueue('video', sourceUpdater);\n    } // Media Source actions require both source buffers, so if the media source action\n    // couldn't process yet (because one or both source buffers are busy), block other\n    // queue actions until both are available and the media source action can process.\n\n\n    return;\n  }\n\n  if (type === 'mediaSource') {\n    // If the queue was shifted by a media source action (this happens when pushing a\n    // media source action onto the queue), then it wasn't from an updateend event from an\n    // audio or video source buffer, so there's no change from previous state, and no\n    // processing should be done.\n    return;\n  } // Media source queue entries don't need to consider whether the source updater is\n  // started (i.e., source buffers are created) as they don't need the source buffers, but\n  // source buffer queue entries do.\n\n\n  if (!sourceUpdater.ready() || sourceUpdater.mediaSource.readyState === 'closed' || _updating(type, sourceUpdater)) {\n    return;\n  }\n\n  if (queueEntry.type !== type) {\n    queueIndex = nextQueueIndexOfType(type, sourceUpdater.queue);\n\n    if (queueIndex === null) {\n      // Either there's no queue entry that uses this source buffer type in the queue, or\n      // there's a media source queue entry before the next entry of this type, in which\n      // case wait for that action to process first.\n      return;\n    }\n\n    queueEntry = sourceUpdater.queue[queueIndex];\n  }\n\n  sourceUpdater.queue.splice(queueIndex, 1); // Keep a record that this source buffer type is in use.\n  //\n  // The queue pending operation must be set before the action is performed in the event\n  // that the action results in a synchronous event that is acted upon. For instance, if\n  // an exception is thrown that can be handled, it's possible that new actions will be\n  // appended to an empty queue and immediately executed, but would not have the correct\n  // pending information if this property was set after the action was performed.\n\n  sourceUpdater.queuePending[type] = queueEntry;\n  queueEntry.action(type, sourceUpdater);\n\n  if (!queueEntry.doneFn) {\n    // synchronous operation, process next entry\n    sourceUpdater.queuePending[type] = null;\n    shiftQueue(type, sourceUpdater);\n    return;\n  }\n};\n\nvar cleanupBuffer = function cleanupBuffer(type, sourceUpdater) {\n  var buffer = sourceUpdater[type + \"Buffer\"];\n  var titleType = toTitleCase(type);\n\n  if (!buffer) {\n    return;\n  }\n\n  buffer.removeEventListener('updateend', sourceUpdater[\"on\" + titleType + \"UpdateEnd_\"]);\n  buffer.removeEventListener('error', sourceUpdater[\"on\" + titleType + \"Error_\"]);\n  sourceUpdater.codecs[type] = null;\n  sourceUpdater[type + \"Buffer\"] = null;\n};\n\nvar inSourceBuffers = function inSourceBuffers(mediaSource, sourceBuffer) {\n  return mediaSource && sourceBuffer && Array.prototype.indexOf.call(mediaSource.sourceBuffers, sourceBuffer) !== -1;\n};\n\nvar actions = {\n  appendBuffer: function appendBuffer(bytes, segmentInfo, onError) {\n    return function (type, sourceUpdater) {\n      var sourceBuffer = sourceUpdater[type + \"Buffer\"]; // can't do anything if the media source / source buffer is null\n      // or the media source does not contain this source buffer.\n\n      if (!inSourceBuffers(sourceUpdater.mediaSource, sourceBuffer)) {\n        return;\n      }\n\n      sourceUpdater.logger_(\"Appending segment \" + segmentInfo.mediaIndex + \"'s \" + bytes.length + \" bytes to \" + type + \"Buffer\");\n\n      try {\n        sourceBuffer.appendBuffer(bytes);\n      } catch (e) {\n        sourceUpdater.logger_(\"Error with code \" + e.code + \" \" + (e.code === QUOTA_EXCEEDED_ERR ? '(QUOTA_EXCEEDED_ERR) ' : '') + (\"when appending segment \" + segmentInfo.mediaIndex + \" to \" + type + \"Buffer\"));\n        sourceUpdater.queuePending[type] = null;\n        onError(e);\n      }\n    };\n  },\n  remove: function remove(start, end) {\n    return function (type, sourceUpdater) {\n      var sourceBuffer = sourceUpdater[type + \"Buffer\"]; // can't do anything if the media source / source buffer is null\n      // or the media source does not contain this source buffer.\n\n      if (!inSourceBuffers(sourceUpdater.mediaSource, sourceBuffer)) {\n        return;\n      }\n\n      sourceUpdater.logger_(\"Removing \" + start + \" to \" + end + \" from \" + type + \"Buffer\");\n\n      try {\n        sourceBuffer.remove(start, end);\n      } catch (e) {\n        sourceUpdater.logger_(\"Remove \" + start + \" to \" + end + \" from \" + type + \"Buffer failed\");\n      }\n    };\n  },\n  timestampOffset: function timestampOffset(offset) {\n    return function (type, sourceUpdater) {\n      var sourceBuffer = sourceUpdater[type + \"Buffer\"]; // can't do anything if the media source / source buffer is null\n      // or the media source does not contain this source buffer.\n\n      if (!inSourceBuffers(sourceUpdater.mediaSource, sourceBuffer)) {\n        return;\n      }\n\n      sourceUpdater.logger_(\"Setting \" + type + \"timestampOffset to \" + offset);\n      sourceBuffer.timestampOffset = offset;\n    };\n  },\n  callback: function callback(_callback) {\n    return function (type, sourceUpdater) {\n      _callback();\n    };\n  },\n  endOfStream: function endOfStream(error) {\n    return function (sourceUpdater) {\n      if (sourceUpdater.mediaSource.readyState !== 'open') {\n        return;\n      }\n\n      sourceUpdater.logger_(\"Calling mediaSource endOfStream(\" + (error || '') + \")\");\n\n      try {\n        sourceUpdater.mediaSource.endOfStream(error);\n      } catch (e) {\n        videojs.log.warn('Failed to call media source endOfStream', e);\n      }\n    };\n  },\n  duration: function duration(_duration) {\n    return function (sourceUpdater) {\n      sourceUpdater.logger_(\"Setting mediaSource duration to \" + _duration);\n\n      try {\n        sourceUpdater.mediaSource.duration = _duration;\n      } catch (e) {\n        videojs.log.warn('Failed to set media source duration', e);\n      }\n    };\n  },\n  abort: function abort() {\n    return function (type, sourceUpdater) {\n      if (sourceUpdater.mediaSource.readyState !== 'open') {\n        return;\n      }\n\n      var sourceBuffer = sourceUpdater[type + \"Buffer\"]; // can't do anything if the media source / source buffer is null\n      // or the media source does not contain this source buffer.\n\n      if (!inSourceBuffers(sourceUpdater.mediaSource, sourceBuffer)) {\n        return;\n      }\n\n      sourceUpdater.logger_(\"calling abort on \" + type + \"Buffer\");\n\n      try {\n        sourceBuffer.abort();\n      } catch (e) {\n        videojs.log.warn(\"Failed to abort on \" + type + \"Buffer\", e);\n      }\n    };\n  },\n  addSourceBuffer: function addSourceBuffer(type, codec) {\n    return function (sourceUpdater) {\n      var titleType = toTitleCase(type);\n      var mime = getMimeForCodec(codec);\n      sourceUpdater.logger_(\"Adding \" + type + \"Buffer with codec \" + codec + \" to mediaSource\");\n      var sourceBuffer = sourceUpdater.mediaSource.addSourceBuffer(mime);\n      sourceBuffer.addEventListener('updateend', sourceUpdater[\"on\" + titleType + \"UpdateEnd_\"]);\n      sourceBuffer.addEventListener('error', sourceUpdater[\"on\" + titleType + \"Error_\"]);\n      sourceUpdater.codecs[type] = codec;\n      sourceUpdater[type + \"Buffer\"] = sourceBuffer;\n    };\n  },\n  removeSourceBuffer: function removeSourceBuffer(type) {\n    return function (sourceUpdater) {\n      var sourceBuffer = sourceUpdater[type + \"Buffer\"];\n      cleanupBuffer(type, sourceUpdater); // can't do anything if the media source / source buffer is null\n      // or the media source does not contain this source buffer.\n\n      if (!inSourceBuffers(sourceUpdater.mediaSource, sourceBuffer)) {\n        return;\n      }\n\n      sourceUpdater.logger_(\"Removing \" + type + \"Buffer with codec \" + sourceUpdater.codecs[type] + \" from mediaSource\");\n\n      try {\n        sourceUpdater.mediaSource.removeSourceBuffer(sourceBuffer);\n      } catch (e) {\n        videojs.log.warn(\"Failed to removeSourceBuffer \" + type + \"Buffer\", e);\n      }\n    };\n  },\n  changeType: function changeType(codec) {\n    return function (type, sourceUpdater) {\n      var sourceBuffer = sourceUpdater[type + \"Buffer\"];\n      var mime = getMimeForCodec(codec); // can't do anything if the media source / source buffer is null\n      // or the media source does not contain this source buffer.\n\n      if (!inSourceBuffers(sourceUpdater.mediaSource, sourceBuffer)) {\n        return;\n      } // do not update codec if we don't need to.\n\n\n      if (sourceUpdater.codecs[type] === codec) {\n        return;\n      }\n\n      sourceUpdater.logger_(\"changing \" + type + \"Buffer codec from \" + sourceUpdater.codecs[type] + \" to \" + codec);\n      sourceBuffer.changeType(mime);\n      sourceUpdater.codecs[type] = codec;\n    };\n  }\n};\n\nvar pushQueue = function pushQueue(_ref) {\n  var type = _ref.type,\n      sourceUpdater = _ref.sourceUpdater,\n      action = _ref.action,\n      doneFn = _ref.doneFn,\n      name = _ref.name;\n  sourceUpdater.queue.push({\n    type: type,\n    action: action,\n    doneFn: doneFn,\n    name: name\n  });\n  shiftQueue(type, sourceUpdater);\n};\n\nvar onUpdateend = function onUpdateend(type, sourceUpdater) {\n  return function (e) {\n    // Although there should, in theory, be a pending action for any updateend receieved,\n    // there are some actions that may trigger updateend events without set definitions in\n    // the w3c spec. For instance, setting the duration on the media source may trigger\n    // updateend events on source buffers. This does not appear to be in the spec. As such,\n    // if we encounter an updateend without a corresponding pending action from our queue\n    // for that source buffer type, process the next action.\n    if (sourceUpdater.queuePending[type]) {\n      var doneFn = sourceUpdater.queuePending[type].doneFn;\n      sourceUpdater.queuePending[type] = null;\n\n      if (doneFn) {\n        // if there's an error, report it\n        doneFn(sourceUpdater[type + \"Error_\"]);\n      }\n    }\n\n    shiftQueue(type, sourceUpdater);\n  };\n};\n/**\n * A queue of callbacks to be serialized and applied when a\n * MediaSource and its associated SourceBuffers are not in the\n * updating state. It is used by the segment loader to update the\n * underlying SourceBuffers when new data is loaded, for instance.\n *\n * @class SourceUpdater\n * @param {MediaSource} mediaSource the MediaSource to create the SourceBuffer from\n * @param {string} mimeType the desired MIME type of the underlying SourceBuffer\n */\n\n\nvar SourceUpdater = /*#__PURE__*/function (_videojs$EventTarget) {\n  _inheritsLoose(SourceUpdater, _videojs$EventTarget);\n\n  function SourceUpdater(mediaSource) {\n    var _this;\n\n    _this = _videojs$EventTarget.call(this) || this;\n    _this.mediaSource = mediaSource;\n\n    _this.sourceopenListener_ = function () {\n      return shiftQueue('mediaSource', _assertThisInitialized(_this));\n    };\n\n    _this.mediaSource.addEventListener('sourceopen', _this.sourceopenListener_);\n\n    _this.logger_ = logger('SourceUpdater'); // initial timestamp offset is 0\n\n    _this.audioTimestampOffset_ = 0;\n    _this.videoTimestampOffset_ = 0;\n    _this.queue = [];\n    _this.queuePending = {\n      audio: null,\n      video: null\n    };\n    _this.delayedAudioAppendQueue_ = [];\n    _this.videoAppendQueued_ = false;\n    _this.codecs = {};\n    _this.onVideoUpdateEnd_ = onUpdateend('video', _assertThisInitialized(_this));\n    _this.onAudioUpdateEnd_ = onUpdateend('audio', _assertThisInitialized(_this));\n\n    _this.onVideoError_ = function (e) {\n      // used for debugging\n      _this.videoError_ = e;\n    };\n\n    _this.onAudioError_ = function (e) {\n      // used for debugging\n      _this.audioError_ = e;\n    };\n\n    _this.createdSourceBuffers_ = false;\n    _this.initializedEme_ = false;\n    _this.triggeredReady_ = false;\n    return _this;\n  }\n\n  var _proto = SourceUpdater.prototype;\n\n  _proto.initializedEme = function initializedEme() {\n    this.initializedEme_ = true;\n    this.triggerReady();\n  };\n\n  _proto.hasCreatedSourceBuffers = function hasCreatedSourceBuffers() {\n    // if false, likely waiting on one of the segment loaders to get enough data to create\n    // source buffers\n    return this.createdSourceBuffers_;\n  };\n\n  _proto.hasInitializedAnyEme = function hasInitializedAnyEme() {\n    return this.initializedEme_;\n  };\n\n  _proto.ready = function ready() {\n    return this.hasCreatedSourceBuffers() && this.hasInitializedAnyEme();\n  };\n\n  _proto.createSourceBuffers = function createSourceBuffers(codecs) {\n    if (this.hasCreatedSourceBuffers()) {\n      // already created them before\n      return;\n    } // the intial addOrChangeSourceBuffers will always be\n    // two add buffers.\n\n\n    this.addOrChangeSourceBuffers(codecs);\n    this.createdSourceBuffers_ = true;\n    this.trigger('createdsourcebuffers');\n    this.triggerReady();\n  };\n\n  _proto.triggerReady = function triggerReady() {\n    // only allow ready to be triggered once, this prevents the case\n    // where:\n    // 1. we trigger createdsourcebuffers\n    // 2. ie 11 synchronously initializates eme\n    // 3. the synchronous initialization causes us to trigger ready\n    // 4. We go back to the ready check in createSourceBuffers and ready is triggered again.\n    if (this.ready() && !this.triggeredReady_) {\n      this.triggeredReady_ = true;\n      this.trigger('ready');\n    }\n  }\n  /**\n   * Add a type of source buffer to the media source.\n   *\n   * @param {string} type\n   *        The type of source buffer to add.\n   *\n   * @param {string} codec\n   *        The codec to add the source buffer with.\n   */\n  ;\n\n  _proto.addSourceBuffer = function addSourceBuffer(type, codec) {\n    pushQueue({\n      type: 'mediaSource',\n      sourceUpdater: this,\n      action: actions.addSourceBuffer(type, codec),\n      name: 'addSourceBuffer'\n    });\n  }\n  /**\n   * call abort on a source buffer.\n   *\n   * @param {string} type\n   *        The type of source buffer to call abort on.\n   */\n  ;\n\n  _proto.abort = function abort(type) {\n    pushQueue({\n      type: type,\n      sourceUpdater: this,\n      action: actions.abort(type),\n      name: 'abort'\n    });\n  }\n  /**\n   * Call removeSourceBuffer and remove a specific type\n   * of source buffer on the mediaSource.\n   *\n   * @param {string} type\n   *        The type of source buffer to remove.\n   */\n  ;\n\n  _proto.removeSourceBuffer = function removeSourceBuffer(type) {\n    if (!this.canRemoveSourceBuffer()) {\n      videojs.log.error('removeSourceBuffer is not supported!');\n      return;\n    }\n\n    pushQueue({\n      type: 'mediaSource',\n      sourceUpdater: this,\n      action: actions.removeSourceBuffer(type),\n      name: 'removeSourceBuffer'\n    });\n  }\n  /**\n   * Whether or not the removeSourceBuffer function is supported\n   * on the mediaSource.\n   *\n   * @return {boolean}\n   *          if removeSourceBuffer can be called.\n   */\n  ;\n\n  _proto.canRemoveSourceBuffer = function canRemoveSourceBuffer() {\n    // IE reports that it supports removeSourceBuffer, but often throws\n    // errors when attempting to use the function. So we report that it\n    // does not support removeSourceBuffer. As of Firefox 83 removeSourceBuffer\n    // throws errors, so we report that it does not support this as well.\n    return !videojs.browser.IE_VERSION && !videojs.browser.IS_FIREFOX && window.MediaSource && window.MediaSource.prototype && typeof window.MediaSource.prototype.removeSourceBuffer === 'function';\n  }\n  /**\n   * Whether or not the changeType function is supported\n   * on our SourceBuffers.\n   *\n   * @return {boolean}\n   *         if changeType can be called.\n   */\n  ;\n\n  SourceUpdater.canChangeType = function canChangeType() {\n    return window.SourceBuffer && window.SourceBuffer.prototype && typeof window.SourceBuffer.prototype.changeType === 'function';\n  }\n  /**\n   * Whether or not the changeType function is supported\n   * on our SourceBuffers.\n   *\n   * @return {boolean}\n   *         if changeType can be called.\n   */\n  ;\n\n  _proto.canChangeType = function canChangeType() {\n    return this.constructor.canChangeType();\n  }\n  /**\n   * Call the changeType function on a source buffer, given the code and type.\n   *\n   * @param {string} type\n   *        The type of source buffer to call changeType on.\n   *\n   * @param {string} codec\n   *        The codec string to change type with on the source buffer.\n   */\n  ;\n\n  _proto.changeType = function changeType(type, codec) {\n    if (!this.canChangeType()) {\n      videojs.log.error('changeType is not supported!');\n      return;\n    }\n\n    pushQueue({\n      type: type,\n      sourceUpdater: this,\n      action: actions.changeType(codec),\n      name: 'changeType'\n    });\n  }\n  /**\n   * Add source buffers with a codec or, if they are already created,\n   * call changeType on source buffers using changeType.\n   *\n   * @param {Object} codecs\n   *        Codecs to switch to\n   */\n  ;\n\n  _proto.addOrChangeSourceBuffers = function addOrChangeSourceBuffers(codecs) {\n    var _this2 = this;\n\n    if (!codecs || typeof codecs !== 'object' || Object.keys(codecs).length === 0) {\n      throw new Error('Cannot addOrChangeSourceBuffers to undefined codecs');\n    }\n\n    Object.keys(codecs).forEach(function (type) {\n      var codec = codecs[type];\n\n      if (!_this2.hasCreatedSourceBuffers()) {\n        return _this2.addSourceBuffer(type, codec);\n      }\n\n      if (_this2.canChangeType()) {\n        _this2.changeType(type, codec);\n      }\n    });\n  }\n  /**\n   * Queue an update to append an ArrayBuffer.\n   *\n   * @param {MediaObject} object containing audioBytes and/or videoBytes\n   * @param {Function} done the function to call when done\n   * @see http://www.w3.org/TR/media-source/#widl-SourceBuffer-appendBuffer-void-ArrayBuffer-data\n   */\n  ;\n\n  _proto.appendBuffer = function appendBuffer(options, doneFn) {\n    var _this3 = this;\n\n    var segmentInfo = options.segmentInfo,\n        type = options.type,\n        bytes = options.bytes;\n    this.processedAppend_ = true;\n\n    if (type === 'audio' && this.videoBuffer && !this.videoAppendQueued_) {\n      this.delayedAudioAppendQueue_.push([options, doneFn]);\n      this.logger_(\"delayed audio append of \" + bytes.length + \" until video append\");\n      return;\n    } // In the case of certain errors, for instance, QUOTA_EXCEEDED_ERR, updateend will\n    // not be fired. This means that the queue will be blocked until the next action\n    // taken by the segment-loader. Provide a mechanism for segment-loader to handle\n    // these errors by calling the doneFn with the specific error.\n\n\n    var onError = doneFn;\n    pushQueue({\n      type: type,\n      sourceUpdater: this,\n      action: actions.appendBuffer(bytes, segmentInfo || {\n        mediaIndex: -1\n      }, onError),\n      doneFn: doneFn,\n      name: 'appendBuffer'\n    });\n\n    if (type === 'video') {\n      this.videoAppendQueued_ = true;\n\n      if (!this.delayedAudioAppendQueue_.length) {\n        return;\n      }\n\n      var queue = this.delayedAudioAppendQueue_.slice();\n      this.logger_(\"queuing delayed audio \" + queue.length + \" appendBuffers\");\n      this.delayedAudioAppendQueue_.length = 0;\n      queue.forEach(function (que) {\n        _this3.appendBuffer.apply(_this3, que);\n      });\n    }\n  }\n  /**\n   * Get the audio buffer's buffered timerange.\n   *\n   * @return {TimeRange}\n   *         The audio buffer's buffered time range\n   */\n  ;\n\n  _proto.audioBuffered = function audioBuffered() {\n    // no media source/source buffer or it isn't in the media sources\n    // source buffer list\n    if (!inSourceBuffers(this.mediaSource, this.audioBuffer)) {\n      return videojs.createTimeRange();\n    }\n\n    return this.audioBuffer.buffered ? this.audioBuffer.buffered : videojs.createTimeRange();\n  }\n  /**\n   * Get the video buffer's buffered timerange.\n   *\n   * @return {TimeRange}\n   *         The video buffer's buffered time range\n   */\n  ;\n\n  _proto.videoBuffered = function videoBuffered() {\n    // no media source/source buffer or it isn't in the media sources\n    // source buffer list\n    if (!inSourceBuffers(this.mediaSource, this.videoBuffer)) {\n      return videojs.createTimeRange();\n    }\n\n    return this.videoBuffer.buffered ? this.videoBuffer.buffered : videojs.createTimeRange();\n  }\n  /**\n   * Get a combined video/audio buffer's buffered timerange.\n   *\n   * @return {TimeRange}\n   *         the combined time range\n   */\n  ;\n\n  _proto.buffered = function buffered() {\n    var video = inSourceBuffers(this.mediaSource, this.videoBuffer) ? this.videoBuffer : null;\n    var audio = inSourceBuffers(this.mediaSource, this.audioBuffer) ? this.audioBuffer : null;\n\n    if (audio && !video) {\n      return this.audioBuffered();\n    }\n\n    if (video && !audio) {\n      return this.videoBuffered();\n    }\n\n    return bufferIntersection(this.audioBuffered(), this.videoBuffered());\n  }\n  /**\n   * Add a callback to the queue that will set duration on the mediaSource.\n   *\n   * @param {number} duration\n   *        The duration to set\n   *\n   * @param {Function} [doneFn]\n   *        function to run after duration has been set.\n   */\n  ;\n\n  _proto.setDuration = function setDuration(duration, doneFn) {\n    if (doneFn === void 0) {\n      doneFn = noop;\n    } // In order to set the duration on the media source, it's necessary to wait for all\n    // source buffers to no longer be updating. \"If the updating attribute equals true on\n    // any SourceBuffer in sourceBuffers, then throw an InvalidStateError exception and\n    // abort these steps.\" (source: https://www.w3.org/TR/media-source/#attributes).\n\n\n    pushQueue({\n      type: 'mediaSource',\n      sourceUpdater: this,\n      action: actions.duration(duration),\n      name: 'duration',\n      doneFn: doneFn\n    });\n  }\n  /**\n   * Add a mediaSource endOfStream call to the queue\n   *\n   * @param {Error} [error]\n   *        Call endOfStream with an error\n   *\n   * @param {Function} [doneFn]\n   *        A function that should be called when the\n   *        endOfStream call has finished.\n   */\n  ;\n\n  _proto.endOfStream = function endOfStream(error, doneFn) {\n    if (error === void 0) {\n      error = null;\n    }\n\n    if (doneFn === void 0) {\n      doneFn = noop;\n    }\n\n    if (typeof error !== 'string') {\n      error = undefined;\n    } // In order to set the duration on the media source, it's necessary to wait for all\n    // source buffers to no longer be updating. \"If the updating attribute equals true on\n    // any SourceBuffer in sourceBuffers, then throw an InvalidStateError exception and\n    // abort these steps.\" (source: https://www.w3.org/TR/media-source/#attributes).\n\n\n    pushQueue({\n      type: 'mediaSource',\n      sourceUpdater: this,\n      action: actions.endOfStream(error),\n      name: 'endOfStream',\n      doneFn: doneFn\n    });\n  }\n  /**\n   * Queue an update to remove a time range from the buffer.\n   *\n   * @param {number} start where to start the removal\n   * @param {number} end where to end the removal\n   * @param {Function} [done=noop] optional callback to be executed when the remove\n   * operation is complete\n   * @see http://www.w3.org/TR/media-source/#widl-SourceBuffer-remove-void-double-start-unrestricted-double-end\n   */\n  ;\n\n  _proto.removeAudio = function removeAudio(start, end, done) {\n    if (done === void 0) {\n      done = noop;\n    }\n\n    if (!this.audioBuffered().length || this.audioBuffered().end(0) === 0) {\n      done();\n      return;\n    }\n\n    pushQueue({\n      type: 'audio',\n      sourceUpdater: this,\n      action: actions.remove(start, end),\n      doneFn: done,\n      name: 'remove'\n    });\n  }\n  /**\n   * Queue an update to remove a time range from the buffer.\n   *\n   * @param {number} start where to start the removal\n   * @param {number} end where to end the removal\n   * @param {Function} [done=noop] optional callback to be executed when the remove\n   * operation is complete\n   * @see http://www.w3.org/TR/media-source/#widl-SourceBuffer-remove-void-double-start-unrestricted-double-end\n   */\n  ;\n\n  _proto.removeVideo = function removeVideo(start, end, done) {\n    if (done === void 0) {\n      done = noop;\n    }\n\n    if (!this.videoBuffered().length || this.videoBuffered().end(0) === 0) {\n      done();\n      return;\n    }\n\n    pushQueue({\n      type: 'video',\n      sourceUpdater: this,\n      action: actions.remove(start, end),\n      doneFn: done,\n      name: 'remove'\n    });\n  }\n  /**\n   * Whether the underlying sourceBuffer is updating or not\n   *\n   * @return {boolean} the updating status of the SourceBuffer\n   */\n  ;\n\n  _proto.updating = function updating() {\n    // the audio/video source buffer is updating\n    if (_updating('audio', this) || _updating('video', this)) {\n      return true;\n    }\n\n    return false;\n  }\n  /**\n   * Set/get the timestampoffset on the audio SourceBuffer\n   *\n   * @return {number} the timestamp offset\n   */\n  ;\n\n  _proto.audioTimestampOffset = function audioTimestampOffset(offset) {\n    if (typeof offset !== 'undefined' && this.audioBuffer && // no point in updating if it's the same\n    this.audioTimestampOffset_ !== offset) {\n      pushQueue({\n        type: 'audio',\n        sourceUpdater: this,\n        action: actions.timestampOffset(offset),\n        name: 'timestampOffset'\n      });\n      this.audioTimestampOffset_ = offset;\n    }\n\n    return this.audioTimestampOffset_;\n  }\n  /**\n   * Set/get the timestampoffset on the video SourceBuffer\n   *\n   * @return {number} the timestamp offset\n   */\n  ;\n\n  _proto.videoTimestampOffset = function videoTimestampOffset(offset) {\n    if (typeof offset !== 'undefined' && this.videoBuffer && // no point in updating if it's the same\n    this.videoTimestampOffset !== offset) {\n      pushQueue({\n        type: 'video',\n        sourceUpdater: this,\n        action: actions.timestampOffset(offset),\n        name: 'timestampOffset'\n      });\n      this.videoTimestampOffset_ = offset;\n    }\n\n    return this.videoTimestampOffset_;\n  }\n  /**\n   * Add a function to the queue that will be called\n   * when it is its turn to run in the audio queue.\n   *\n   * @param {Function} callback\n   *        The callback to queue.\n   */\n  ;\n\n  _proto.audioQueueCallback = function audioQueueCallback(callback) {\n    if (!this.audioBuffer) {\n      return;\n    }\n\n    pushQueue({\n      type: 'audio',\n      sourceUpdater: this,\n      action: actions.callback(callback),\n      name: 'callback'\n    });\n  }\n  /**\n   * Add a function to the queue that will be called\n   * when it is its turn to run in the video queue.\n   *\n   * @param {Function} callback\n   *        The callback to queue.\n   */\n  ;\n\n  _proto.videoQueueCallback = function videoQueueCallback(callback) {\n    if (!this.videoBuffer) {\n      return;\n    }\n\n    pushQueue({\n      type: 'video',\n      sourceUpdater: this,\n      action: actions.callback(callback),\n      name: 'callback'\n    });\n  }\n  /**\n   * dispose of the source updater and the underlying sourceBuffer\n   */\n  ;\n\n  _proto.dispose = function dispose() {\n    var _this4 = this;\n\n    this.trigger('dispose');\n    bufferTypes.forEach(function (type) {\n      _this4.abort(type);\n\n      if (_this4.canRemoveSourceBuffer()) {\n        _this4.removeSourceBuffer(type);\n      } else {\n        _this4[type + \"QueueCallback\"](function () {\n          return cleanupBuffer(type, _this4);\n        });\n      }\n    });\n    this.videoAppendQueued_ = false;\n    this.delayedAudioAppendQueue_.length = 0;\n\n    if (this.sourceopenListener_) {\n      this.mediaSource.removeEventListener('sourceopen', this.sourceopenListener_);\n    }\n\n    this.off();\n  };\n\n  return SourceUpdater;\n}(videojs.EventTarget);\n\nvar uint8ToUtf8 = function uint8ToUtf8(uintArray) {\n  return decodeURIComponent(escape(String.fromCharCode.apply(null, uintArray)));\n};\n\nvar VTT_LINE_TERMINATORS = new Uint8Array('\\n\\n'.split('').map(function (_char3) {\n  return _char3.charCodeAt(0);\n}));\n/**\n * An object that manages segment loading and appending.\n *\n * @class VTTSegmentLoader\n * @param {Object} options required and optional options\n * @extends videojs.EventTarget\n */\n\nvar VTTSegmentLoader = /*#__PURE__*/function (_SegmentLoader) {\n  _inheritsLoose(VTTSegmentLoader, _SegmentLoader);\n\n  function VTTSegmentLoader(settings, options) {\n    var _this;\n\n    if (options === void 0) {\n      options = {};\n    }\n\n    _this = _SegmentLoader.call(this, settings, options) || this; // SegmentLoader requires a MediaSource be specified or it will throw an error;\n    // however, VTTSegmentLoader has no need of a media source, so delete the reference\n\n    _this.mediaSource_ = null;\n    _this.subtitlesTrack_ = null;\n    _this.loaderType_ = 'subtitle';\n    _this.featuresNativeTextTracks_ = settings.featuresNativeTextTracks; // The VTT segment will have its own time mappings. Saving VTT segment timing info in\n    // the sync controller leads to improper behavior.\n\n    _this.shouldSaveSegmentTimingInfo_ = false;\n    return _this;\n  }\n\n  var _proto = VTTSegmentLoader.prototype;\n\n  _proto.createTransmuxer_ = function createTransmuxer_() {\n    // don't need to transmux any subtitles\n    return null;\n  }\n  /**\n   * Indicates which time ranges are buffered\n   *\n   * @return {TimeRange}\n   *         TimeRange object representing the current buffered ranges\n   */\n  ;\n\n  _proto.buffered_ = function buffered_() {\n    if (!this.subtitlesTrack_ || !this.subtitlesTrack_.cues || !this.subtitlesTrack_.cues.length) {\n      return videojs.createTimeRanges();\n    }\n\n    var cues = this.subtitlesTrack_.cues;\n    var start = cues[0].startTime;\n    var end = cues[cues.length - 1].startTime;\n    return videojs.createTimeRanges([[start, end]]);\n  }\n  /**\n   * Gets and sets init segment for the provided map\n   *\n   * @param {Object} map\n   *        The map object representing the init segment to get or set\n   * @param {boolean=} set\n   *        If true, the init segment for the provided map should be saved\n   * @return {Object}\n   *         map object for desired init segment\n   */\n  ;\n\n  _proto.initSegmentForMap = function initSegmentForMap(map, set) {\n    if (set === void 0) {\n      set = false;\n    }\n\n    if (!map) {\n      return null;\n    }\n\n    var id = initSegmentId(map);\n    var storedMap = this.initSegments_[id];\n\n    if (set && !storedMap && map.bytes) {\n      // append WebVTT line terminators to the media initialization segment if it exists\n      // to follow the WebVTT spec (https://w3c.github.io/webvtt/#file-structure) that\n      // requires two or more WebVTT line terminators between the WebVTT header and the\n      // rest of the file\n      var combinedByteLength = VTT_LINE_TERMINATORS.byteLength + map.bytes.byteLength;\n      var combinedSegment = new Uint8Array(combinedByteLength);\n      combinedSegment.set(map.bytes);\n      combinedSegment.set(VTT_LINE_TERMINATORS, map.bytes.byteLength);\n      this.initSegments_[id] = storedMap = {\n        resolvedUri: map.resolvedUri,\n        byterange: map.byterange,\n        bytes: combinedSegment\n      };\n    }\n\n    return storedMap || map;\n  }\n  /**\n   * Returns true if all configuration required for loading is present, otherwise false.\n   *\n   * @return {boolean} True if the all configuration is ready for loading\n   * @private\n   */\n  ;\n\n  _proto.couldBeginLoading_ = function couldBeginLoading_() {\n    return this.playlist_ && this.subtitlesTrack_ && !this.paused();\n  }\n  /**\n   * Once all the starting parameters have been specified, begin\n   * operation. This method should only be invoked from the INIT\n   * state.\n   *\n   * @private\n   */\n  ;\n\n  _proto.init_ = function init_() {\n    this.state = 'READY';\n    this.resetEverything();\n    return this.monitorBuffer_();\n  }\n  /**\n   * Set a subtitle track on the segment loader to add subtitles to\n   *\n   * @param {TextTrack=} track\n   *        The text track to add loaded subtitles to\n   * @return {TextTrack}\n   *        Returns the subtitles track\n   */\n  ;\n\n  _proto.track = function track(_track) {\n    if (typeof _track === 'undefined') {\n      return this.subtitlesTrack_;\n    }\n\n    this.subtitlesTrack_ = _track; // if we were unpaused but waiting for a sourceUpdater, start\n    // buffering now\n\n    if (this.state === 'INIT' && this.couldBeginLoading_()) {\n      this.init_();\n    }\n\n    return this.subtitlesTrack_;\n  }\n  /**\n   * Remove any data in the source buffer between start and end times\n   *\n   * @param {number} start - the start time of the region to remove from the buffer\n   * @param {number} end - the end time of the region to remove from the buffer\n   */\n  ;\n\n  _proto.remove = function remove(start, end) {\n    removeCuesFromTrack(start, end, this.subtitlesTrack_);\n  }\n  /**\n   * fill the buffer with segements unless the sourceBuffers are\n   * currently updating\n   *\n   * Note: this function should only ever be called by monitorBuffer_\n   * and never directly\n   *\n   * @private\n   */\n  ;\n\n  _proto.fillBuffer_ = function fillBuffer_() {\n    var _this2 = this; // see if we need to begin loading immediately\n\n\n    var segmentInfo = this.chooseNextRequest_();\n\n    if (!segmentInfo) {\n      return;\n    }\n\n    if (this.syncController_.timestampOffsetForTimeline(segmentInfo.timeline) === null) {\n      // We don't have the timestamp offset that we need to sync subtitles.\n      // Rerun on a timestamp offset or user interaction.\n      var checkTimestampOffset = function checkTimestampOffset() {\n        _this2.state = 'READY';\n\n        if (!_this2.paused()) {\n          // if not paused, queue a buffer check as soon as possible\n          _this2.monitorBuffer_();\n        }\n      };\n\n      this.syncController_.one('timestampoffset', checkTimestampOffset);\n      this.state = 'WAITING_ON_TIMELINE';\n      return;\n    }\n\n    this.loadSegment_(segmentInfo);\n  } // never set a timestamp offset for vtt segments.\n  ;\n\n  _proto.timestampOffsetForSegment_ = function timestampOffsetForSegment_() {\n    return null;\n  };\n\n  _proto.chooseNextRequest_ = function chooseNextRequest_() {\n    return this.skipEmptySegments_(_SegmentLoader.prototype.chooseNextRequest_.call(this));\n  }\n  /**\n   * Prevents the segment loader from requesting segments we know contain no subtitles\n   * by walking forward until we find the next segment that we don't know whether it is\n   * empty or not.\n   *\n   * @param {Object} segmentInfo\n   *        a segment info object that describes the current segment\n   * @return {Object}\n   *         a segment info object that describes the current segment\n   */\n  ;\n\n  _proto.skipEmptySegments_ = function skipEmptySegments_(segmentInfo) {\n    while (segmentInfo && segmentInfo.segment.empty) {\n      // stop at the last possible segmentInfo\n      if (segmentInfo.mediaIndex + 1 >= segmentInfo.playlist.segments.length) {\n        segmentInfo = null;\n        break;\n      }\n\n      segmentInfo = this.generateSegmentInfo_({\n        playlist: segmentInfo.playlist,\n        mediaIndex: segmentInfo.mediaIndex + 1,\n        startOfSegment: segmentInfo.startOfSegment + segmentInfo.duration,\n        isSyncRequest: segmentInfo.isSyncRequest\n      });\n    }\n\n    return segmentInfo;\n  };\n\n  _proto.stopForError = function stopForError(error) {\n    this.error(error);\n    this.state = 'READY';\n    this.pause();\n    this.trigger('error');\n  }\n  /**\n   * append a decrypted segement to the SourceBuffer through a SourceUpdater\n   *\n   * @private\n   */\n  ;\n\n  _proto.segmentRequestFinished_ = function segmentRequestFinished_(error, simpleSegment, result) {\n    var _this3 = this;\n\n    if (!this.subtitlesTrack_) {\n      this.state = 'READY';\n      return;\n    }\n\n    this.saveTransferStats_(simpleSegment.stats); // the request was aborted\n\n    if (!this.pendingSegment_) {\n      this.state = 'READY';\n      this.mediaRequestsAborted += 1;\n      return;\n    }\n\n    if (error) {\n      if (error.code === REQUEST_ERRORS.TIMEOUT) {\n        this.handleTimeout_();\n      }\n\n      if (error.code === REQUEST_ERRORS.ABORTED) {\n        this.mediaRequestsAborted += 1;\n      } else {\n        this.mediaRequestsErrored += 1;\n      }\n\n      this.stopForError(error);\n      return;\n    }\n\n    var segmentInfo = this.pendingSegment_; // although the VTT segment loader bandwidth isn't really used, it's good to\n    // maintain functionality between segment loaders\n\n    this.saveBandwidthRelatedStats_(segmentInfo.duration, simpleSegment.stats);\n    this.state = 'APPENDING'; // used for tests\n\n    this.trigger('appending');\n    var segment = segmentInfo.segment;\n\n    if (segment.map) {\n      segment.map.bytes = simpleSegment.map.bytes;\n    }\n\n    segmentInfo.bytes = simpleSegment.bytes; // Make sure that vttjs has loaded, otherwise, wait till it finished loading\n\n    if (typeof window.WebVTT !== 'function' && this.subtitlesTrack_ && this.subtitlesTrack_.tech_) {\n      var loadHandler;\n\n      var errorHandler = function errorHandler() {\n        _this3.subtitlesTrack_.tech_.off('vttjsloaded', loadHandler);\n\n        _this3.stopForError({\n          message: 'Error loading vtt.js'\n        });\n\n        return;\n      };\n\n      loadHandler = function loadHandler() {\n        _this3.subtitlesTrack_.tech_.off('vttjserror', errorHandler);\n\n        _this3.segmentRequestFinished_(error, simpleSegment, result);\n      };\n\n      this.state = 'WAITING_ON_VTTJS';\n      this.subtitlesTrack_.tech_.one('vttjsloaded', loadHandler);\n      this.subtitlesTrack_.tech_.one('vttjserror', errorHandler);\n      return;\n    }\n\n    segment.requested = true;\n\n    try {\n      this.parseVTTCues_(segmentInfo);\n    } catch (e) {\n      this.stopForError({\n        message: e.message\n      });\n      return;\n    }\n\n    this.updateTimeMapping_(segmentInfo, this.syncController_.timelines[segmentInfo.timeline], this.playlist_);\n\n    if (segmentInfo.cues.length) {\n      segmentInfo.timingInfo = {\n        start: segmentInfo.cues[0].startTime,\n        end: segmentInfo.cues[segmentInfo.cues.length - 1].endTime\n      };\n    } else {\n      segmentInfo.timingInfo = {\n        start: segmentInfo.startOfSegment,\n        end: segmentInfo.startOfSegment + segmentInfo.duration\n      };\n    }\n\n    if (segmentInfo.isSyncRequest) {\n      this.trigger('syncinfoupdate');\n      this.pendingSegment_ = null;\n      this.state = 'READY';\n      return;\n    }\n\n    segmentInfo.byteLength = segmentInfo.bytes.byteLength;\n    this.mediaSecondsLoaded += segment.duration; // Create VTTCue instances for each cue in the new segment and add them to\n    // the subtitle track\n\n    segmentInfo.cues.forEach(function (cue) {\n      _this3.subtitlesTrack_.addCue(_this3.featuresNativeTextTracks_ ? new window.VTTCue(cue.startTime, cue.endTime, cue.text) : cue);\n    }); // Remove any duplicate cues from the subtitle track. The WebVTT spec allows\n    // cues to have identical time-intervals, but if the text is also identical\n    // we can safely assume it is a duplicate that can be removed (ex. when a cue\n    // \"overlaps\" VTT segments)\n\n    removeDuplicateCuesFromTrack(this.subtitlesTrack_);\n    this.handleAppendsDone_();\n  };\n\n  _proto.handleData_ = function handleData_() {// noop as we shouldn't be getting video/audio data captions\n    // that we do not support here.\n  };\n\n  _proto.updateTimingInfoEnd_ = function updateTimingInfoEnd_() {// noop\n  }\n  /**\n   * Uses the WebVTT parser to parse the segment response\n   *\n   * @param {Object} segmentInfo\n   *        a segment info object that describes the current segment\n   * @private\n   */\n  ;\n\n  _proto.parseVTTCues_ = function parseVTTCues_(segmentInfo) {\n    var decoder;\n    var decodeBytesToString = false;\n\n    if (typeof window.TextDecoder === 'function') {\n      decoder = new window.TextDecoder('utf8');\n    } else {\n      decoder = window.WebVTT.StringDecoder();\n      decodeBytesToString = true;\n    }\n\n    var parser = new window.WebVTT.Parser(window, window.vttjs, decoder);\n    segmentInfo.cues = [];\n    segmentInfo.timestampmap = {\n      MPEGTS: 0,\n      LOCAL: 0\n    };\n    parser.oncue = segmentInfo.cues.push.bind(segmentInfo.cues);\n\n    parser.ontimestampmap = function (map) {\n      segmentInfo.timestampmap = map;\n    };\n\n    parser.onparsingerror = function (error) {\n      videojs.log.warn('Error encountered when parsing cues: ' + error.message);\n    };\n\n    if (segmentInfo.segment.map) {\n      var mapData = segmentInfo.segment.map.bytes;\n\n      if (decodeBytesToString) {\n        mapData = uint8ToUtf8(mapData);\n      }\n\n      parser.parse(mapData);\n    }\n\n    var segmentData = segmentInfo.bytes;\n\n    if (decodeBytesToString) {\n      segmentData = uint8ToUtf8(segmentData);\n    }\n\n    parser.parse(segmentData);\n    parser.flush();\n  }\n  /**\n   * Updates the start and end times of any cues parsed by the WebVTT parser using\n   * the information parsed from the X-TIMESTAMP-MAP header and a TS to media time mapping\n   * from the SyncController\n   *\n   * @param {Object} segmentInfo\n   *        a segment info object that describes the current segment\n   * @param {Object} mappingObj\n   *        object containing a mapping from TS to media time\n   * @param {Object} playlist\n   *        the playlist object containing the segment\n   * @private\n   */\n  ;\n\n  _proto.updateTimeMapping_ = function updateTimeMapping_(segmentInfo, mappingObj, playlist) {\n    var segment = segmentInfo.segment;\n\n    if (!mappingObj) {\n      // If the sync controller does not have a mapping of TS to Media Time for the\n      // timeline, then we don't have enough information to update the cue\n      // start/end times\n      return;\n    }\n\n    if (!segmentInfo.cues.length) {\n      // If there are no cues, we also do not have enough information to figure out\n      // segment timing. Mark that the segment contains no cues so we don't re-request\n      // an empty segment.\n      segment.empty = true;\n      return;\n    }\n\n    var timestampmap = segmentInfo.timestampmap;\n    var diff = timestampmap.MPEGTS / ONE_SECOND_IN_TS - timestampmap.LOCAL + mappingObj.mapping;\n    segmentInfo.cues.forEach(function (cue) {\n      // First convert cue time to TS time using the timestamp-map provided within the vtt\n      cue.startTime += diff;\n      cue.endTime += diff;\n    });\n\n    if (!playlist.syncInfo) {\n      var firstStart = segmentInfo.cues[0].startTime;\n      var lastStart = segmentInfo.cues[segmentInfo.cues.length - 1].startTime;\n      playlist.syncInfo = {\n        mediaSequence: playlist.mediaSequence + segmentInfo.mediaIndex,\n        time: Math.min(firstStart, lastStart - segment.duration)\n      };\n    }\n  };\n\n  return VTTSegmentLoader;\n}(SegmentLoader);\n/**\n * @file ad-cue-tags.js\n */\n\n/**\n * Searches for an ad cue that overlaps with the given mediaTime\n *\n * @param {Object} track\n *        the track to find the cue for\n *\n * @param {number} mediaTime\n *        the time to find the cue at\n *\n * @return {Object|null}\n *         the found cue or null\n */\n\n\nvar findAdCue = function findAdCue(track, mediaTime) {\n  var cues = track.cues;\n\n  for (var i = 0; i < cues.length; i++) {\n    var cue = cues[i];\n\n    if (mediaTime >= cue.adStartTime && mediaTime <= cue.adEndTime) {\n      return cue;\n    }\n  }\n\n  return null;\n};\n\nvar updateAdCues = function updateAdCues(media, track, offset) {\n  if (offset === void 0) {\n    offset = 0;\n  }\n\n  if (!media.segments) {\n    return;\n  }\n\n  var mediaTime = offset;\n  var cue;\n\n  for (var i = 0; i < media.segments.length; i++) {\n    var segment = media.segments[i];\n\n    if (!cue) {\n      // Since the cues will span for at least the segment duration, adding a fudge\n      // factor of half segment duration will prevent duplicate cues from being\n      // created when timing info is not exact (e.g. cue start time initialized\n      // at 10.006677, but next call mediaTime is 10.003332 )\n      cue = findAdCue(track, mediaTime + segment.duration / 2);\n    }\n\n    if (cue) {\n      if ('cueIn' in segment) {\n        // Found a CUE-IN so end the cue\n        cue.endTime = mediaTime;\n        cue.adEndTime = mediaTime;\n        mediaTime += segment.duration;\n        cue = null;\n        continue;\n      }\n\n      if (mediaTime < cue.endTime) {\n        // Already processed this mediaTime for this cue\n        mediaTime += segment.duration;\n        continue;\n      } // otherwise extend cue until a CUE-IN is found\n\n\n      cue.endTime += segment.duration;\n    } else {\n      if ('cueOut' in segment) {\n        cue = new window.VTTCue(mediaTime, mediaTime + segment.duration, segment.cueOut);\n        cue.adStartTime = mediaTime; // Assumes tag format to be\n        // #EXT-X-CUE-OUT:30\n\n        cue.adEndTime = mediaTime + parseFloat(segment.cueOut);\n        track.addCue(cue);\n      }\n\n      if ('cueOutCont' in segment) {\n        // Entered into the middle of an ad cue\n        // Assumes tag formate to be\n        // #EXT-X-CUE-OUT-CONT:10/30\n        var _segment$cueOutCont$s = segment.cueOutCont.split('/').map(parseFloat),\n            adOffset = _segment$cueOutCont$s[0],\n            adTotal = _segment$cueOutCont$s[1];\n\n        cue = new window.VTTCue(mediaTime, mediaTime + segment.duration, '');\n        cue.adStartTime = mediaTime - adOffset;\n        cue.adEndTime = cue.adStartTime + adTotal;\n        track.addCue(cue);\n      }\n    }\n\n    mediaTime += segment.duration;\n  }\n};\n\nvar syncPointStrategies = [// Stategy \"VOD\": Handle the VOD-case where the sync-point is *always*\n//                the equivalence display-time 0 === segment-index 0\n{\n  name: 'VOD',\n  run: function run(syncController, playlist, duration, currentTimeline, currentTime) {\n    if (duration !== Infinity) {\n      var syncPoint = {\n        time: 0,\n        segmentIndex: 0,\n        partIndex: null\n      };\n      return syncPoint;\n    }\n\n    return null;\n  }\n}, // Stategy \"ProgramDateTime\": We have a program-date-time tag in this playlist\n{\n  name: 'ProgramDateTime',\n  run: function run(syncController, playlist, duration, currentTimeline, currentTime) {\n    if (!Object.keys(syncController.timelineToDatetimeMappings).length) {\n      return null;\n    }\n\n    var syncPoint = null;\n    var lastDistance = null;\n    var partsAndSegments = getPartsAndSegments(playlist);\n    currentTime = currentTime || 0;\n\n    for (var i = 0; i < partsAndSegments.length; i++) {\n      // start from the end and loop backwards for live\n      // or start from the front and loop forwards for non-live\n      var index = playlist.endList || currentTime === 0 ? i : partsAndSegments.length - (i + 1);\n      var partAndSegment = partsAndSegments[index];\n      var segment = partAndSegment.segment;\n      var datetimeMapping = syncController.timelineToDatetimeMappings[segment.timeline];\n\n      if (!datetimeMapping) {\n        continue;\n      }\n\n      if (segment.dateTimeObject) {\n        var segmentTime = segment.dateTimeObject.getTime() / 1000;\n        var start = segmentTime + datetimeMapping; // take part duration into account.\n\n        if (segment.parts && typeof partAndSegment.partIndex === 'number') {\n          for (var z = 0; z < partAndSegment.partIndex; z++) {\n            start += segment.parts[z].duration;\n          }\n        }\n\n        var distance = Math.abs(currentTime - start); // Once the distance begins to increase, or if distance is 0, we have passed\n        // currentTime and can stop looking for better candidates\n\n        if (lastDistance !== null && (distance === 0 || lastDistance < distance)) {\n          break;\n        }\n\n        lastDistance = distance;\n        syncPoint = {\n          time: start,\n          segmentIndex: partAndSegment.segmentIndex,\n          partIndex: partAndSegment.partIndex\n        };\n      }\n    }\n\n    return syncPoint;\n  }\n}, // Stategy \"Segment\": We have a known time mapping for a timeline and a\n//                    segment in the current timeline with timing data\n{\n  name: 'Segment',\n  run: function run(syncController, playlist, duration, currentTimeline, currentTime) {\n    var syncPoint = null;\n    var lastDistance = null;\n    currentTime = currentTime || 0;\n    var partsAndSegments = getPartsAndSegments(playlist);\n\n    for (var i = 0; i < partsAndSegments.length; i++) {\n      // start from the end and loop backwards for live\n      // or start from the front and loop forwards for non-live\n      var index = playlist.endList || currentTime === 0 ? i : partsAndSegments.length - (i + 1);\n      var partAndSegment = partsAndSegments[index];\n      var segment = partAndSegment.segment;\n      var start = partAndSegment.part && partAndSegment.part.start || segment && segment.start;\n\n      if (segment.timeline === currentTimeline && typeof start !== 'undefined') {\n        var distance = Math.abs(currentTime - start); // Once the distance begins to increase, we have passed\n        // currentTime and can stop looking for better candidates\n\n        if (lastDistance !== null && lastDistance < distance) {\n          break;\n        }\n\n        if (!syncPoint || lastDistance === null || lastDistance >= distance) {\n          lastDistance = distance;\n          syncPoint = {\n            time: start,\n            segmentIndex: partAndSegment.segmentIndex,\n            partIndex: partAndSegment.partIndex\n          };\n        }\n      }\n    }\n\n    return syncPoint;\n  }\n}, // Stategy \"Discontinuity\": We have a discontinuity with a known\n//                          display-time\n{\n  name: 'Discontinuity',\n  run: function run(syncController, playlist, duration, currentTimeline, currentTime) {\n    var syncPoint = null;\n    currentTime = currentTime || 0;\n\n    if (playlist.discontinuityStarts && playlist.discontinuityStarts.length) {\n      var lastDistance = null;\n\n      for (var i = 0; i < playlist.discontinuityStarts.length; i++) {\n        var segmentIndex = playlist.discontinuityStarts[i];\n        var discontinuity = playlist.discontinuitySequence + i + 1;\n        var discontinuitySync = syncController.discontinuities[discontinuity];\n\n        if (discontinuitySync) {\n          var distance = Math.abs(currentTime - discontinuitySync.time); // Once the distance begins to increase, we have passed\n          // currentTime and can stop looking for better candidates\n\n          if (lastDistance !== null && lastDistance < distance) {\n            break;\n          }\n\n          if (!syncPoint || lastDistance === null || lastDistance >= distance) {\n            lastDistance = distance;\n            syncPoint = {\n              time: discontinuitySync.time,\n              segmentIndex: segmentIndex,\n              partIndex: null\n            };\n          }\n        }\n      }\n    }\n\n    return syncPoint;\n  }\n}, // Stategy \"Playlist\": We have a playlist with a known mapping of\n//                     segment index to display time\n{\n  name: 'Playlist',\n  run: function run(syncController, playlist, duration, currentTimeline, currentTime) {\n    if (playlist.syncInfo) {\n      var syncPoint = {\n        time: playlist.syncInfo.time,\n        segmentIndex: playlist.syncInfo.mediaSequence - playlist.mediaSequence,\n        partIndex: null\n      };\n      return syncPoint;\n    }\n\n    return null;\n  }\n}];\n\nvar SyncController = /*#__PURE__*/function (_videojs$EventTarget) {\n  _inheritsLoose(SyncController, _videojs$EventTarget);\n\n  function SyncController(options) {\n    var _this;\n\n    _this = _videojs$EventTarget.call(this) || this; // ...for synching across variants\n\n    _this.timelines = [];\n    _this.discontinuities = [];\n    _this.timelineToDatetimeMappings = {};\n    _this.logger_ = logger('SyncController');\n    return _this;\n  }\n  /**\n   * Find a sync-point for the playlist specified\n   *\n   * A sync-point is defined as a known mapping from display-time to\n   * a segment-index in the current playlist.\n   *\n   * @param {Playlist} playlist\n   *        The playlist that needs a sync-point\n   * @param {number} duration\n   *        Duration of the MediaSource (Infinite if playing a live source)\n   * @param {number} currentTimeline\n   *        The last timeline from which a segment was loaded\n   * @return {Object}\n   *          A sync-point object\n   */\n\n\n  var _proto = SyncController.prototype;\n\n  _proto.getSyncPoint = function getSyncPoint(playlist, duration, currentTimeline, currentTime) {\n    var syncPoints = this.runStrategies_(playlist, duration, currentTimeline, currentTime);\n\n    if (!syncPoints.length) {\n      // Signal that we need to attempt to get a sync-point manually\n      // by fetching a segment in the playlist and constructing\n      // a sync-point from that information\n      return null;\n    } // Now find the sync-point that is closest to the currentTime because\n    // that should result in the most accurate guess about which segment\n    // to fetch\n\n\n    return this.selectSyncPoint_(syncPoints, {\n      key: 'time',\n      value: currentTime\n    });\n  }\n  /**\n   * Calculate the amount of time that has expired off the playlist during playback\n   *\n   * @param {Playlist} playlist\n   *        Playlist object to calculate expired from\n   * @param {number} duration\n   *        Duration of the MediaSource (Infinity if playling a live source)\n   * @return {number|null}\n   *          The amount of time that has expired off the playlist during playback. Null\n   *          if no sync-points for the playlist can be found.\n   */\n  ;\n\n  _proto.getExpiredTime = function getExpiredTime(playlist, duration) {\n    if (!playlist || !playlist.segments) {\n      return null;\n    }\n\n    var syncPoints = this.runStrategies_(playlist, duration, playlist.discontinuitySequence, 0); // Without sync-points, there is not enough information to determine the expired time\n\n    if (!syncPoints.length) {\n      return null;\n    }\n\n    var syncPoint = this.selectSyncPoint_(syncPoints, {\n      key: 'segmentIndex',\n      value: 0\n    }); // If the sync-point is beyond the start of the playlist, we want to subtract the\n    // duration from index 0 to syncPoint.segmentIndex instead of adding.\n\n    if (syncPoint.segmentIndex > 0) {\n      syncPoint.time *= -1;\n    }\n\n    return Math.abs(syncPoint.time + sumDurations({\n      defaultDuration: playlist.targetDuration,\n      durationList: playlist.segments,\n      startIndex: syncPoint.segmentIndex,\n      endIndex: 0\n    }));\n  }\n  /**\n   * Runs each sync-point strategy and returns a list of sync-points returned by the\n   * strategies\n   *\n   * @private\n   * @param {Playlist} playlist\n   *        The playlist that needs a sync-point\n   * @param {number} duration\n   *        Duration of the MediaSource (Infinity if playing a live source)\n   * @param {number} currentTimeline\n   *        The last timeline from which a segment was loaded\n   * @return {Array}\n   *          A list of sync-point objects\n   */\n  ;\n\n  _proto.runStrategies_ = function runStrategies_(playlist, duration, currentTimeline, currentTime) {\n    var syncPoints = []; // Try to find a sync-point in by utilizing various strategies...\n\n    for (var i = 0; i < syncPointStrategies.length; i++) {\n      var strategy = syncPointStrategies[i];\n      var syncPoint = strategy.run(this, playlist, duration, currentTimeline, currentTime);\n\n      if (syncPoint) {\n        syncPoint.strategy = strategy.name;\n        syncPoints.push({\n          strategy: strategy.name,\n          syncPoint: syncPoint\n        });\n      }\n    }\n\n    return syncPoints;\n  }\n  /**\n   * Selects the sync-point nearest the specified target\n   *\n   * @private\n   * @param {Array} syncPoints\n   *        List of sync-points to select from\n   * @param {Object} target\n   *        Object specifying the property and value we are targeting\n   * @param {string} target.key\n   *        Specifies the property to target. Must be either 'time' or 'segmentIndex'\n   * @param {number} target.value\n   *        The value to target for the specified key.\n   * @return {Object}\n   *          The sync-point nearest the target\n   */\n  ;\n\n  _proto.selectSyncPoint_ = function selectSyncPoint_(syncPoints, target) {\n    var bestSyncPoint = syncPoints[0].syncPoint;\n    var bestDistance = Math.abs(syncPoints[0].syncPoint[target.key] - target.value);\n    var bestStrategy = syncPoints[0].strategy;\n\n    for (var i = 1; i < syncPoints.length; i++) {\n      var newDistance = Math.abs(syncPoints[i].syncPoint[target.key] - target.value);\n\n      if (newDistance < bestDistance) {\n        bestDistance = newDistance;\n        bestSyncPoint = syncPoints[i].syncPoint;\n        bestStrategy = syncPoints[i].strategy;\n      }\n    }\n\n    this.logger_(\"syncPoint for [\" + target.key + \": \" + target.value + \"] chosen with strategy\" + (\" [\" + bestStrategy + \"]: [time:\" + bestSyncPoint.time + \",\") + (\" segmentIndex:\" + bestSyncPoint.segmentIndex) + (typeof bestSyncPoint.partIndex === 'number' ? \",partIndex:\" + bestSyncPoint.partIndex : '') + ']');\n    return bestSyncPoint;\n  }\n  /**\n   * Save any meta-data present on the segments when segments leave\n   * the live window to the playlist to allow for synchronization at the\n   * playlist level later.\n   *\n   * @param {Playlist} oldPlaylist - The previous active playlist\n   * @param {Playlist} newPlaylist - The updated and most current playlist\n   */\n  ;\n\n  _proto.saveExpiredSegmentInfo = function saveExpiredSegmentInfo(oldPlaylist, newPlaylist) {\n    var mediaSequenceDiff = newPlaylist.mediaSequence - oldPlaylist.mediaSequence; // When a segment expires from the playlist and it has a start time\n    // save that information as a possible sync-point reference in future\n\n    for (var i = mediaSequenceDiff - 1; i >= 0; i--) {\n      var lastRemovedSegment = oldPlaylist.segments[i];\n\n      if (lastRemovedSegment && typeof lastRemovedSegment.start !== 'undefined') {\n        newPlaylist.syncInfo = {\n          mediaSequence: oldPlaylist.mediaSequence + i,\n          time: lastRemovedSegment.start\n        };\n        this.logger_(\"playlist refresh sync: [time:\" + newPlaylist.syncInfo.time + \",\" + (\" mediaSequence: \" + newPlaylist.syncInfo.mediaSequence + \"]\"));\n        this.trigger('syncinfoupdate');\n        break;\n      }\n    }\n  }\n  /**\n   * Save the mapping from playlist's ProgramDateTime to display. This should only happen\n   * before segments start to load.\n   *\n   * @param {Playlist} playlist - The currently active playlist\n   */\n  ;\n\n  _proto.setDateTimeMappingForStart = function setDateTimeMappingForStart(playlist) {\n    // It's possible for the playlist to be updated before playback starts, meaning time\n    // zero is not yet set. If, during these playlist refreshes, a discontinuity is\n    // crossed, then the old time zero mapping (for the prior timeline) would be retained\n    // unless the mappings are cleared.\n    this.timelineToDatetimeMappings = {};\n\n    if (playlist.segments && playlist.segments.length && playlist.segments[0].dateTimeObject) {\n      var firstSegment = playlist.segments[0];\n      var playlistTimestamp = firstSegment.dateTimeObject.getTime() / 1000;\n      this.timelineToDatetimeMappings[firstSegment.timeline] = -playlistTimestamp;\n    }\n  }\n  /**\n   * Calculates and saves timeline mappings, playlist sync info, and segment timing values\n   * based on the latest timing information.\n   *\n   * @param {Object} options\n   *        Options object\n   * @param {SegmentInfo} options.segmentInfo\n   *        The current active request information\n   * @param {boolean} options.shouldSaveTimelineMapping\n   *        If there's a timeline change, determines if the timeline mapping should be\n   *        saved for timeline mapping and program date time mappings.\n   */\n  ;\n\n  _proto.saveSegmentTimingInfo = function saveSegmentTimingInfo(_ref) {\n    var segmentInfo = _ref.segmentInfo,\n        shouldSaveTimelineMapping = _ref.shouldSaveTimelineMapping;\n    var didCalculateSegmentTimeMapping = this.calculateSegmentTimeMapping_(segmentInfo, segmentInfo.timingInfo, shouldSaveTimelineMapping);\n    var segment = segmentInfo.segment;\n\n    if (didCalculateSegmentTimeMapping) {\n      this.saveDiscontinuitySyncInfo_(segmentInfo); // If the playlist does not have sync information yet, record that information\n      // now with segment timing information\n\n      if (!segmentInfo.playlist.syncInfo) {\n        segmentInfo.playlist.syncInfo = {\n          mediaSequence: segmentInfo.playlist.mediaSequence + segmentInfo.mediaIndex,\n          time: segment.start\n        };\n      }\n    }\n\n    var dateTime = segment.dateTimeObject;\n\n    if (segment.discontinuity && shouldSaveTimelineMapping && dateTime) {\n      this.timelineToDatetimeMappings[segment.timeline] = -(dateTime.getTime() / 1000);\n    }\n  };\n\n  _proto.timestampOffsetForTimeline = function timestampOffsetForTimeline(timeline) {\n    if (typeof this.timelines[timeline] === 'undefined') {\n      return null;\n    }\n\n    return this.timelines[timeline].time;\n  };\n\n  _proto.mappingForTimeline = function mappingForTimeline(timeline) {\n    if (typeof this.timelines[timeline] === 'undefined') {\n      return null;\n    }\n\n    return this.timelines[timeline].mapping;\n  }\n  /**\n   * Use the \"media time\" for a segment to generate a mapping to \"display time\" and\n   * save that display time to the segment.\n   *\n   * @private\n   * @param {SegmentInfo} segmentInfo\n   *        The current active request information\n   * @param {Object} timingInfo\n   *        The start and end time of the current segment in \"media time\"\n   * @param {boolean} shouldSaveTimelineMapping\n   *        If there's a timeline change, determines if the timeline mapping should be\n   *        saved in timelines.\n   * @return {boolean}\n   *          Returns false if segment time mapping could not be calculated\n   */\n  ;\n\n  _proto.calculateSegmentTimeMapping_ = function calculateSegmentTimeMapping_(segmentInfo, timingInfo, shouldSaveTimelineMapping) {\n    // TODO: remove side effects\n    var segment = segmentInfo.segment;\n    var part = segmentInfo.part;\n    var mappingObj = this.timelines[segmentInfo.timeline];\n    var start;\n    var end;\n\n    if (typeof segmentInfo.timestampOffset === 'number') {\n      mappingObj = {\n        time: segmentInfo.startOfSegment,\n        mapping: segmentInfo.startOfSegment - timingInfo.start\n      };\n\n      if (shouldSaveTimelineMapping) {\n        this.timelines[segmentInfo.timeline] = mappingObj;\n        this.trigger('timestampoffset');\n        this.logger_(\"time mapping for timeline \" + segmentInfo.timeline + \": \" + (\"[time: \" + mappingObj.time + \"] [mapping: \" + mappingObj.mapping + \"]\"));\n      }\n\n      start = segmentInfo.startOfSegment;\n      end = timingInfo.end + mappingObj.mapping;\n    } else if (mappingObj) {\n      start = timingInfo.start + mappingObj.mapping;\n      end = timingInfo.end + mappingObj.mapping;\n    } else {\n      return false;\n    }\n\n    if (part) {\n      part.start = start;\n      part.end = end;\n    } // If we don't have a segment start yet or the start value we got\n    // is less than our current segment.start value, save a new start value.\n    // We have to do this because parts will have segment timing info saved\n    // multiple times and we want segment start to be the earliest part start\n    // value for that segment.\n\n\n    if (!segment.start || start < segment.start) {\n      segment.start = start;\n    }\n\n    segment.end = end;\n    return true;\n  }\n  /**\n   * Each time we have discontinuity in the playlist, attempt to calculate the location\n   * in display of the start of the discontinuity and save that. We also save an accuracy\n   * value so that we save values with the most accuracy (closest to 0.)\n   *\n   * @private\n   * @param {SegmentInfo} segmentInfo - The current active request information\n   */\n  ;\n\n  _proto.saveDiscontinuitySyncInfo_ = function saveDiscontinuitySyncInfo_(segmentInfo) {\n    var playlist = segmentInfo.playlist;\n    var segment = segmentInfo.segment; // If the current segment is a discontinuity then we know exactly where\n    // the start of the range and it's accuracy is 0 (greater accuracy values\n    // mean more approximation)\n\n    if (segment.discontinuity) {\n      this.discontinuities[segment.timeline] = {\n        time: segment.start,\n        accuracy: 0\n      };\n    } else if (playlist.discontinuityStarts && playlist.discontinuityStarts.length) {\n      // Search for future discontinuities that we can provide better timing\n      // information for and save that information for sync purposes\n      for (var i = 0; i < playlist.discontinuityStarts.length; i++) {\n        var segmentIndex = playlist.discontinuityStarts[i];\n        var discontinuity = playlist.discontinuitySequence + i + 1;\n        var mediaIndexDiff = segmentIndex - segmentInfo.mediaIndex;\n        var accuracy = Math.abs(mediaIndexDiff);\n\n        if (!this.discontinuities[discontinuity] || this.discontinuities[discontinuity].accuracy > accuracy) {\n          var time = void 0;\n\n          if (mediaIndexDiff < 0) {\n            time = segment.start - sumDurations({\n              defaultDuration: playlist.targetDuration,\n              durationList: playlist.segments,\n              startIndex: segmentInfo.mediaIndex,\n              endIndex: segmentIndex\n            });\n          } else {\n            time = segment.end + sumDurations({\n              defaultDuration: playlist.targetDuration,\n              durationList: playlist.segments,\n              startIndex: segmentInfo.mediaIndex + 1,\n              endIndex: segmentIndex\n            });\n          }\n\n          this.discontinuities[discontinuity] = {\n            time: time,\n            accuracy: accuracy\n          };\n        }\n      }\n    }\n  };\n\n  _proto.dispose = function dispose() {\n    this.trigger('dispose');\n    this.off();\n  };\n\n  return SyncController;\n}(videojs.EventTarget);\n/**\n * The TimelineChangeController acts as a source for segment loaders to listen for and\n * keep track of latest and pending timeline changes. This is useful to ensure proper\n * sync, as each loader may need to make a consideration for what timeline the other\n * loader is on before making changes which could impact the other loader's media.\n *\n * @class TimelineChangeController\n * @extends videojs.EventTarget\n */\n\n\nvar TimelineChangeController = /*#__PURE__*/function (_videojs$EventTarget) {\n  _inheritsLoose(TimelineChangeController, _videojs$EventTarget);\n\n  function TimelineChangeController() {\n    var _this;\n\n    _this = _videojs$EventTarget.call(this) || this;\n    _this.pendingTimelineChanges_ = {};\n    _this.lastTimelineChanges_ = {};\n    return _this;\n  }\n\n  var _proto = TimelineChangeController.prototype;\n\n  _proto.clearPendingTimelineChange = function clearPendingTimelineChange(type) {\n    this.pendingTimelineChanges_[type] = null;\n    this.trigger('pendingtimelinechange');\n  };\n\n  _proto.pendingTimelineChange = function pendingTimelineChange(_ref) {\n    var type = _ref.type,\n        from = _ref.from,\n        to = _ref.to;\n\n    if (typeof from === 'number' && typeof to === 'number') {\n      this.pendingTimelineChanges_[type] = {\n        type: type,\n        from: from,\n        to: to\n      };\n      this.trigger('pendingtimelinechange');\n    }\n\n    return this.pendingTimelineChanges_[type];\n  };\n\n  _proto.lastTimelineChange = function lastTimelineChange(_ref2) {\n    var type = _ref2.type,\n        from = _ref2.from,\n        to = _ref2.to;\n\n    if (typeof from === 'number' && typeof to === 'number') {\n      this.lastTimelineChanges_[type] = {\n        type: type,\n        from: from,\n        to: to\n      };\n      delete this.pendingTimelineChanges_[type];\n      this.trigger('timelinechange');\n    }\n\n    return this.lastTimelineChanges_[type];\n  };\n\n  _proto.dispose = function dispose() {\n    this.trigger('dispose');\n    this.pendingTimelineChanges_ = {};\n    this.lastTimelineChanges_ = {};\n    this.off();\n  };\n\n  return TimelineChangeController;\n}(videojs.EventTarget);\n/* rollup-plugin-worker-factory start for worker!/Users/bcasey/Projects/videojs-http-streaming/src/decrypter-worker.js */\n\n\nvar workerCode = transform(getWorkerString(function () {\n  function createCommonjsModule(fn, basedir, module) {\n    return module = {\n      path: basedir,\n      exports: {},\n      require: function require(path, base) {\n        return commonjsRequire(path, base === undefined || base === null ? module.path : base);\n      }\n    }, fn(module, module.exports), module.exports;\n  }\n\n  function commonjsRequire() {\n    throw new Error('Dynamic requires are not currently supported by @rollup/plugin-commonjs');\n  }\n\n  var createClass = createCommonjsModule(function (module) {\n    function _defineProperties(target, props) {\n      for (var i = 0; i < props.length; i++) {\n        var descriptor = props[i];\n        descriptor.enumerable = descriptor.enumerable || false;\n        descriptor.configurable = true;\n        if (\"value\" in descriptor) descriptor.writable = true;\n        Object.defineProperty(target, descriptor.key, descriptor);\n      }\n    }\n\n    function _createClass(Constructor, protoProps, staticProps) {\n      if (protoProps) _defineProperties(Constructor.prototype, protoProps);\n      if (staticProps) _defineProperties(Constructor, staticProps);\n      return Constructor;\n    }\n\n    module.exports = _createClass;\n    module.exports[\"default\"] = module.exports, module.exports.__esModule = true;\n  });\n  var setPrototypeOf = createCommonjsModule(function (module) {\n    function _setPrototypeOf(o, p) {\n      module.exports = _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) {\n        o.__proto__ = p;\n        return o;\n      };\n\n      module.exports[\"default\"] = module.exports, module.exports.__esModule = true;\n      return _setPrototypeOf(o, p);\n    }\n\n    module.exports = _setPrototypeOf;\n    module.exports[\"default\"] = module.exports, module.exports.__esModule = true;\n  });\n  var inheritsLoose = createCommonjsModule(function (module) {\n    function _inheritsLoose(subClass, superClass) {\n      subClass.prototype = Object.create(superClass.prototype);\n      subClass.prototype.constructor = subClass;\n      setPrototypeOf(subClass, superClass);\n    }\n\n    module.exports = _inheritsLoose;\n    module.exports[\"default\"] = module.exports, module.exports.__esModule = true;\n  });\n  /**\n   * @file stream.js\n   */\n\n  /**\n   * A lightweight readable stream implemention that handles event dispatching.\n   *\n   * @class Stream\n   */\n\n  var Stream = /*#__PURE__*/function () {\n    function Stream() {\n      this.listeners = {};\n    }\n    /**\n     * Add a listener for a specified event type.\n     *\n     * @param {string} type the event name\n     * @param {Function} listener the callback to be invoked when an event of\n     * the specified type occurs\n     */\n\n\n    var _proto = Stream.prototype;\n\n    _proto.on = function on(type, listener) {\n      if (!this.listeners[type]) {\n        this.listeners[type] = [];\n      }\n\n      this.listeners[type].push(listener);\n    }\n    /**\n     * Remove a listener for a specified event type.\n     *\n     * @param {string} type the event name\n     * @param {Function} listener  a function previously registered for this\n     * type of event through `on`\n     * @return {boolean} if we could turn it off or not\n     */\n    ;\n\n    _proto.off = function off(type, listener) {\n      if (!this.listeners[type]) {\n        return false;\n      }\n\n      var index = this.listeners[type].indexOf(listener); // TODO: which is better?\n      // In Video.js we slice listener functions\n      // on trigger so that it does not mess up the order\n      // while we loop through.\n      //\n      // Here we slice on off so that the loop in trigger\n      // can continue using it's old reference to loop without\n      // messing up the order.\n\n      this.listeners[type] = this.listeners[type].slice(0);\n      this.listeners[type].splice(index, 1);\n      return index > -1;\n    }\n    /**\n     * Trigger an event of the specified type on this stream. Any additional\n     * arguments to this function are passed as parameters to event listeners.\n     *\n     * @param {string} type the event name\n     */\n    ;\n\n    _proto.trigger = function trigger(type) {\n      var callbacks = this.listeners[type];\n\n      if (!callbacks) {\n        return;\n      } // Slicing the arguments on every invocation of this method\n      // can add a significant amount of overhead. Avoid the\n      // intermediate object creation for the common case of a\n      // single callback argument\n\n\n      if (arguments.length === 2) {\n        var length = callbacks.length;\n\n        for (var i = 0; i < length; ++i) {\n          callbacks[i].call(this, arguments[1]);\n        }\n      } else {\n        var args = Array.prototype.slice.call(arguments, 1);\n        var _length = callbacks.length;\n\n        for (var _i = 0; _i < _length; ++_i) {\n          callbacks[_i].apply(this, args);\n        }\n      }\n    }\n    /**\n     * Destroys the stream and cleans up.\n     */\n    ;\n\n    _proto.dispose = function dispose() {\n      this.listeners = {};\n    }\n    /**\n     * Forwards all `data` events on this stream to the destination stream. The\n     * destination stream should provide a method `push` to receive the data\n     * events as they arrive.\n     *\n     * @param {Stream} destination the stream that will receive all `data` events\n     * @see http://nodejs.org/api/stream.html#stream_readable_pipe_destination_options\n     */\n    ;\n\n    _proto.pipe = function pipe(destination) {\n      this.on('data', function (data) {\n        destination.push(data);\n      });\n    };\n\n    return Stream;\n  }();\n  /*! @name pkcs7 @version 1.0.4 @license Apache-2.0 */\n\n  /**\n   * Returns the subarray of a Uint8Array without PKCS#7 padding.\n   *\n   * @param padded {Uint8Array} unencrypted bytes that have been padded\n   * @return {Uint8Array} the unpadded bytes\n   * @see http://tools.ietf.org/html/rfc5652\n   */\n\n\n  function unpad(padded) {\n    return padded.subarray(0, padded.byteLength - padded[padded.byteLength - 1]);\n  }\n  /*! @name aes-decrypter @version 3.1.2 @license Apache-2.0 */\n\n  /**\n   * @file aes.js\n   *\n   * This file contains an adaptation of the AES decryption algorithm\n   * from the Standford Javascript Cryptography Library. That work is\n   * covered by the following copyright and permissions notice:\n   *\n   * Copyright 2009-2010 Emily Stark, Mike Hamburg, Dan Boneh.\n   * All rights reserved.\n   *\n   * Redistribution and use in source and binary forms, with or without\n   * modification, are permitted provided that the following conditions are\n   * met:\n   *\n   * 1. Redistributions of source code must retain the above copyright\n   *    notice, this list of conditions and the following disclaimer.\n   *\n   * 2. Redistributions in binary form must reproduce the above\n   *    copyright notice, this list of conditions and the following\n   *    disclaimer in the documentation and/or other materials provided\n   *    with the distribution.\n   *\n   * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR\n   * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n   * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE\n   * DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> OR CONTRIBUTORS BE\n   * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR\n   * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF\n   * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR\n   * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n   * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE\n   * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN\n   * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.\n   *\n   * The views and conclusions contained in the software and documentation\n   * are those of the authors and should not be interpreted as representing\n   * official policies, either expressed or implied, of the authors.\n   */\n\n  /**\n   * Expand the S-box tables.\n   *\n   * @private\n   */\n\n\n  var precompute = function precompute() {\n    var tables = [[[], [], [], [], []], [[], [], [], [], []]];\n    var encTable = tables[0];\n    var decTable = tables[1];\n    var sbox = encTable[4];\n    var sboxInv = decTable[4];\n    var i;\n    var x;\n    var xInv;\n    var d = [];\n    var th = [];\n    var x2;\n    var x4;\n    var x8;\n    var s;\n    var tEnc;\n    var tDec; // Compute double and third tables\n\n    for (i = 0; i < 256; i++) {\n      th[(d[i] = i << 1 ^ (i >> 7) * 283) ^ i] = i;\n    }\n\n    for (x = xInv = 0; !sbox[x]; x ^= x2 || 1, xInv = th[xInv] || 1) {\n      // Compute sbox\n      s = xInv ^ xInv << 1 ^ xInv << 2 ^ xInv << 3 ^ xInv << 4;\n      s = s >> 8 ^ s & 255 ^ 99;\n      sbox[x] = s;\n      sboxInv[s] = x; // Compute MixColumns\n\n      x8 = d[x4 = d[x2 = d[x]]];\n      tDec = x8 * 0x1010101 ^ x4 * 0x10001 ^ x2 * 0x101 ^ x * 0x1010100;\n      tEnc = d[s] * 0x101 ^ s * 0x1010100;\n\n      for (i = 0; i < 4; i++) {\n        encTable[i][x] = tEnc = tEnc << 24 ^ tEnc >>> 8;\n        decTable[i][s] = tDec = tDec << 24 ^ tDec >>> 8;\n      }\n    } // Compactify. Considerable speedup on Firefox.\n\n\n    for (i = 0; i < 5; i++) {\n      encTable[i] = encTable[i].slice(0);\n      decTable[i] = decTable[i].slice(0);\n    }\n\n    return tables;\n  };\n\n  var aesTables = null;\n  /**\n   * Schedule out an AES key for both encryption and decryption. This\n   * is a low-level class. Use a cipher mode to do bulk encryption.\n   *\n   * @class AES\n   * @param key {Array} The key as an array of 4, 6 or 8 words.\n   */\n\n  var AES = /*#__PURE__*/function () {\n    function AES(key) {\n      /**\n      * The expanded S-box and inverse S-box tables. These will be computed\n      * on the client so that we don't have to send them down the wire.\n      *\n      * There are two tables, _tables[0] is for encryption and\n      * _tables[1] is for decryption.\n      *\n      * The first 4 sub-tables are the expanded S-box with MixColumns. The\n      * last (_tables[01][4]) is the S-box itself.\n      *\n      * @private\n      */\n      // if we have yet to precompute the S-box tables\n      // do so now\n      if (!aesTables) {\n        aesTables = precompute();\n      } // then make a copy of that object for use\n\n\n      this._tables = [[aesTables[0][0].slice(), aesTables[0][1].slice(), aesTables[0][2].slice(), aesTables[0][3].slice(), aesTables[0][4].slice()], [aesTables[1][0].slice(), aesTables[1][1].slice(), aesTables[1][2].slice(), aesTables[1][3].slice(), aesTables[1][4].slice()]];\n      var i;\n      var j;\n      var tmp;\n      var sbox = this._tables[0][4];\n      var decTable = this._tables[1];\n      var keyLen = key.length;\n      var rcon = 1;\n\n      if (keyLen !== 4 && keyLen !== 6 && keyLen !== 8) {\n        throw new Error('Invalid aes key size');\n      }\n\n      var encKey = key.slice(0);\n      var decKey = [];\n      this._key = [encKey, decKey]; // schedule encryption keys\n\n      for (i = keyLen; i < 4 * keyLen + 28; i++) {\n        tmp = encKey[i - 1]; // apply sbox\n\n        if (i % keyLen === 0 || keyLen === 8 && i % keyLen === 4) {\n          tmp = sbox[tmp >>> 24] << 24 ^ sbox[tmp >> 16 & 255] << 16 ^ sbox[tmp >> 8 & 255] << 8 ^ sbox[tmp & 255]; // shift rows and add rcon\n\n          if (i % keyLen === 0) {\n            tmp = tmp << 8 ^ tmp >>> 24 ^ rcon << 24;\n            rcon = rcon << 1 ^ (rcon >> 7) * 283;\n          }\n        }\n\n        encKey[i] = encKey[i - keyLen] ^ tmp;\n      } // schedule decryption keys\n\n\n      for (j = 0; i; j++, i--) {\n        tmp = encKey[j & 3 ? i : i - 4];\n\n        if (i <= 4 || j < 4) {\n          decKey[j] = tmp;\n        } else {\n          decKey[j] = decTable[0][sbox[tmp >>> 24]] ^ decTable[1][sbox[tmp >> 16 & 255]] ^ decTable[2][sbox[tmp >> 8 & 255]] ^ decTable[3][sbox[tmp & 255]];\n        }\n      }\n    }\n    /**\n     * Decrypt 16 bytes, specified as four 32-bit words.\n     *\n     * @param {number} encrypted0 the first word to decrypt\n     * @param {number} encrypted1 the second word to decrypt\n     * @param {number} encrypted2 the third word to decrypt\n     * @param {number} encrypted3 the fourth word to decrypt\n     * @param {Int32Array} out the array to write the decrypted words\n     * into\n     * @param {number} offset the offset into the output array to start\n     * writing results\n     * @return {Array} The plaintext.\n     */\n\n\n    var _proto = AES.prototype;\n\n    _proto.decrypt = function decrypt(encrypted0, encrypted1, encrypted2, encrypted3, out, offset) {\n      var key = this._key[1]; // state variables a,b,c,d are loaded with pre-whitened data\n\n      var a = encrypted0 ^ key[0];\n      var b = encrypted3 ^ key[1];\n      var c = encrypted2 ^ key[2];\n      var d = encrypted1 ^ key[3];\n      var a2;\n      var b2;\n      var c2; // key.length === 2 ?\n\n      var nInnerRounds = key.length / 4 - 2;\n      var i;\n      var kIndex = 4;\n      var table = this._tables[1]; // load up the tables\n\n      var table0 = table[0];\n      var table1 = table[1];\n      var table2 = table[2];\n      var table3 = table[3];\n      var sbox = table[4]; // Inner rounds. Cribbed from OpenSSL.\n\n      for (i = 0; i < nInnerRounds; i++) {\n        a2 = table0[a >>> 24] ^ table1[b >> 16 & 255] ^ table2[c >> 8 & 255] ^ table3[d & 255] ^ key[kIndex];\n        b2 = table0[b >>> 24] ^ table1[c >> 16 & 255] ^ table2[d >> 8 & 255] ^ table3[a & 255] ^ key[kIndex + 1];\n        c2 = table0[c >>> 24] ^ table1[d >> 16 & 255] ^ table2[a >> 8 & 255] ^ table3[b & 255] ^ key[kIndex + 2];\n        d = table0[d >>> 24] ^ table1[a >> 16 & 255] ^ table2[b >> 8 & 255] ^ table3[c & 255] ^ key[kIndex + 3];\n        kIndex += 4;\n        a = a2;\n        b = b2;\n        c = c2;\n      } // Last round.\n\n\n      for (i = 0; i < 4; i++) {\n        out[(3 & -i) + offset] = sbox[a >>> 24] << 24 ^ sbox[b >> 16 & 255] << 16 ^ sbox[c >> 8 & 255] << 8 ^ sbox[d & 255] ^ key[kIndex++];\n        a2 = a;\n        a = b;\n        b = c;\n        c = d;\n        d = a2;\n      }\n    };\n\n    return AES;\n  }();\n  /**\n   * A wrapper around the Stream class to use setTimeout\n   * and run stream \"jobs\" Asynchronously\n   *\n   * @class AsyncStream\n   * @extends Stream\n   */\n\n\n  var AsyncStream = /*#__PURE__*/function (_Stream) {\n    inheritsLoose(AsyncStream, _Stream);\n\n    function AsyncStream() {\n      var _this;\n\n      _this = _Stream.call(this, Stream) || this;\n      _this.jobs = [];\n      _this.delay = 1;\n      _this.timeout_ = null;\n      return _this;\n    }\n    /**\n     * process an async job\n     *\n     * @private\n     */\n\n\n    var _proto = AsyncStream.prototype;\n\n    _proto.processJob_ = function processJob_() {\n      this.jobs.shift()();\n\n      if (this.jobs.length) {\n        this.timeout_ = setTimeout(this.processJob_.bind(this), this.delay);\n      } else {\n        this.timeout_ = null;\n      }\n    }\n    /**\n     * push a job into the stream\n     *\n     * @param {Function} job the job to push into the stream\n     */\n    ;\n\n    _proto.push = function push(job) {\n      this.jobs.push(job);\n\n      if (!this.timeout_) {\n        this.timeout_ = setTimeout(this.processJob_.bind(this), this.delay);\n      }\n    };\n\n    return AsyncStream;\n  }(Stream);\n  /**\n   * Convert network-order (big-endian) bytes into their little-endian\n   * representation.\n   */\n\n\n  var ntoh = function ntoh(word) {\n    return word << 24 | (word & 0xff00) << 8 | (word & 0xff0000) >> 8 | word >>> 24;\n  };\n  /**\n   * Decrypt bytes using AES-128 with CBC and PKCS#7 padding.\n   *\n   * @param {Uint8Array} encrypted the encrypted bytes\n   * @param {Uint32Array} key the bytes of the decryption key\n   * @param {Uint32Array} initVector the initialization vector (IV) to\n   * use for the first round of CBC.\n   * @return {Uint8Array} the decrypted bytes\n   *\n   * @see http://en.wikipedia.org/wiki/Advanced_Encryption_Standard\n   * @see http://en.wikipedia.org/wiki/Block_cipher_mode_of_operation#Cipher_Block_Chaining_.28CBC.29\n   * @see https://tools.ietf.org/html/rfc2315\n   */\n\n\n  var decrypt = function decrypt(encrypted, key, initVector) {\n    // word-level access to the encrypted bytes\n    var encrypted32 = new Int32Array(encrypted.buffer, encrypted.byteOffset, encrypted.byteLength >> 2);\n    var decipher = new AES(Array.prototype.slice.call(key)); // byte and word-level access for the decrypted output\n\n    var decrypted = new Uint8Array(encrypted.byteLength);\n    var decrypted32 = new Int32Array(decrypted.buffer); // temporary variables for working with the IV, encrypted, and\n    // decrypted data\n\n    var init0;\n    var init1;\n    var init2;\n    var init3;\n    var encrypted0;\n    var encrypted1;\n    var encrypted2;\n    var encrypted3; // iteration variable\n\n    var wordIx; // pull out the words of the IV to ensure we don't modify the\n    // passed-in reference and easier access\n\n    init0 = initVector[0];\n    init1 = initVector[1];\n    init2 = initVector[2];\n    init3 = initVector[3]; // decrypt four word sequences, applying cipher-block chaining (CBC)\n    // to each decrypted block\n\n    for (wordIx = 0; wordIx < encrypted32.length; wordIx += 4) {\n      // convert big-endian (network order) words into little-endian\n      // (javascript order)\n      encrypted0 = ntoh(encrypted32[wordIx]);\n      encrypted1 = ntoh(encrypted32[wordIx + 1]);\n      encrypted2 = ntoh(encrypted32[wordIx + 2]);\n      encrypted3 = ntoh(encrypted32[wordIx + 3]); // decrypt the block\n\n      decipher.decrypt(encrypted0, encrypted1, encrypted2, encrypted3, decrypted32, wordIx); // XOR with the IV, and restore network byte-order to obtain the\n      // plaintext\n\n      decrypted32[wordIx] = ntoh(decrypted32[wordIx] ^ init0);\n      decrypted32[wordIx + 1] = ntoh(decrypted32[wordIx + 1] ^ init1);\n      decrypted32[wordIx + 2] = ntoh(decrypted32[wordIx + 2] ^ init2);\n      decrypted32[wordIx + 3] = ntoh(decrypted32[wordIx + 3] ^ init3); // setup the IV for the next round\n\n      init0 = encrypted0;\n      init1 = encrypted1;\n      init2 = encrypted2;\n      init3 = encrypted3;\n    }\n\n    return decrypted;\n  };\n  /**\n   * The `Decrypter` class that manages decryption of AES\n   * data through `AsyncStream` objects and the `decrypt`\n   * function\n   *\n   * @param {Uint8Array} encrypted the encrypted bytes\n   * @param {Uint32Array} key the bytes of the decryption key\n   * @param {Uint32Array} initVector the initialization vector (IV) to\n   * @param {Function} done the function to run when done\n   * @class Decrypter\n   */\n\n\n  var Decrypter = /*#__PURE__*/function () {\n    function Decrypter(encrypted, key, initVector, done) {\n      var step = Decrypter.STEP;\n      var encrypted32 = new Int32Array(encrypted.buffer);\n      var decrypted = new Uint8Array(encrypted.byteLength);\n      var i = 0;\n      this.asyncStream_ = new AsyncStream(); // split up the encryption job and do the individual chunks asynchronously\n\n      this.asyncStream_.push(this.decryptChunk_(encrypted32.subarray(i, i + step), key, initVector, decrypted));\n\n      for (i = step; i < encrypted32.length; i += step) {\n        initVector = new Uint32Array([ntoh(encrypted32[i - 4]), ntoh(encrypted32[i - 3]), ntoh(encrypted32[i - 2]), ntoh(encrypted32[i - 1])]);\n        this.asyncStream_.push(this.decryptChunk_(encrypted32.subarray(i, i + step), key, initVector, decrypted));\n      } // invoke the done() callback when everything is finished\n\n\n      this.asyncStream_.push(function () {\n        // remove pkcs#7 padding from the decrypted bytes\n        done(null, unpad(decrypted));\n      });\n    }\n    /**\n     * a getter for step the maximum number of bytes to process at one time\n     *\n     * @return {number} the value of step 32000\n     */\n\n\n    var _proto = Decrypter.prototype;\n    /**\n     * @private\n     */\n\n    _proto.decryptChunk_ = function decryptChunk_(encrypted, key, initVector, decrypted) {\n      return function () {\n        var bytes = decrypt(encrypted, key, initVector);\n        decrypted.set(bytes, encrypted.byteOffset);\n      };\n    };\n\n    createClass(Decrypter, null, [{\n      key: \"STEP\",\n      get: function get() {\n        // 4 * 8000;\n        return 32000;\n      }\n    }]);\n    return Decrypter;\n  }();\n  /**\n   * @file bin-utils.js\n   */\n\n  /**\n   * Creates an object for sending to a web worker modifying properties that are TypedArrays\n   * into a new object with seperated properties for the buffer, byteOffset, and byteLength.\n   *\n   * @param {Object} message\n   *        Object of properties and values to send to the web worker\n   * @return {Object}\n   *         Modified message with TypedArray values expanded\n   * @function createTransferableMessage\n   */\n\n\n  var createTransferableMessage = function createTransferableMessage(message) {\n    var transferable = {};\n    Object.keys(message).forEach(function (key) {\n      var value = message[key];\n\n      if (ArrayBuffer.isView(value)) {\n        transferable[key] = {\n          bytes: value.buffer,\n          byteOffset: value.byteOffset,\n          byteLength: value.byteLength\n        };\n      } else {\n        transferable[key] = value;\n      }\n    });\n    return transferable;\n  };\n  /* global self */\n\n  /**\n   * Our web worker interface so that things can talk to aes-decrypter\n   * that will be running in a web worker. the scope is passed to this by\n   * webworkify.\n   */\n\n\n  self.onmessage = function (event) {\n    var data = event.data;\n    var encrypted = new Uint8Array(data.encrypted.bytes, data.encrypted.byteOffset, data.encrypted.byteLength);\n    var key = new Uint32Array(data.key.bytes, data.key.byteOffset, data.key.byteLength / 4);\n    var iv = new Uint32Array(data.iv.bytes, data.iv.byteOffset, data.iv.byteLength / 4);\n    /* eslint-disable no-new, handle-callback-err */\n\n    new Decrypter(encrypted, key, iv, function (err, bytes) {\n      self.postMessage(createTransferableMessage({\n        source: data.source,\n        decrypted: bytes\n      }), [bytes.buffer]);\n    });\n    /* eslint-enable */\n  };\n}));\nvar Decrypter = factory(workerCode);\n/* rollup-plugin-worker-factory end for worker!/Users/bcasey/Projects/videojs-http-streaming/src/decrypter-worker.js */\n\n/**\n * Convert the properties of an HLS track into an audioTrackKind.\n *\n * @private\n */\n\nvar audioTrackKind_ = function audioTrackKind_(properties) {\n  var kind = properties[\"default\"] ? 'main' : 'alternative';\n\n  if (properties.characteristics && properties.characteristics.indexOf('public.accessibility.describes-video') >= 0) {\n    kind = 'main-desc';\n  }\n\n  return kind;\n};\n/**\n * Pause provided segment loader and playlist loader if active\n *\n * @param {SegmentLoader} segmentLoader\n *        SegmentLoader to pause\n * @param {Object} mediaType\n *        Active media type\n * @function stopLoaders\n */\n\n\nvar stopLoaders = function stopLoaders(segmentLoader, mediaType) {\n  segmentLoader.abort();\n  segmentLoader.pause();\n\n  if (mediaType && mediaType.activePlaylistLoader) {\n    mediaType.activePlaylistLoader.pause();\n    mediaType.activePlaylistLoader = null;\n  }\n};\n/**\n * Start loading provided segment loader and playlist loader\n *\n * @param {PlaylistLoader} playlistLoader\n *        PlaylistLoader to start loading\n * @param {Object} mediaType\n *        Active media type\n * @function startLoaders\n */\n\n\nvar startLoaders = function startLoaders(playlistLoader, mediaType) {\n  // Segment loader will be started after `loadedmetadata` or `loadedplaylist` from the\n  // playlist loader\n  mediaType.activePlaylistLoader = playlistLoader;\n  playlistLoader.load();\n};\n/**\n * Returns a function to be called when the media group changes. It performs a\n * non-destructive (preserve the buffer) resync of the SegmentLoader. This is because a\n * change of group is merely a rendition switch of the same content at another encoding,\n * rather than a change of content, such as switching audio from English to Spanish.\n *\n * @param {string} type\n *        MediaGroup type\n * @param {Object} settings\n *        Object containing required information for media groups\n * @return {Function}\n *         Handler for a non-destructive resync of SegmentLoader when the active media\n *         group changes.\n * @function onGroupChanged\n */\n\n\nvar onGroupChanged = function onGroupChanged(type, settings) {\n  return function () {\n    var _settings$segmentLoad = settings.segmentLoaders,\n        segmentLoader = _settings$segmentLoad[type],\n        mainSegmentLoader = _settings$segmentLoad.main,\n        mediaType = settings.mediaTypes[type];\n    var activeTrack = mediaType.activeTrack();\n    var activeGroup = mediaType.getActiveGroup();\n    var previousActiveLoader = mediaType.activePlaylistLoader;\n    var lastGroup = mediaType.lastGroup_; // the group did not change do nothing\n\n    if (activeGroup && lastGroup && activeGroup.id === lastGroup.id) {\n      return;\n    }\n\n    mediaType.lastGroup_ = activeGroup;\n    mediaType.lastTrack_ = activeTrack;\n    stopLoaders(segmentLoader, mediaType);\n\n    if (!activeGroup || activeGroup.isMasterPlaylist) {\n      // there is no group active or active group is a main playlist and won't change\n      return;\n    }\n\n    if (!activeGroup.playlistLoader) {\n      if (previousActiveLoader) {\n        // The previous group had a playlist loader but the new active group does not\n        // this means we are switching from demuxed to muxed audio. In this case we want to\n        // do a destructive reset of the main segment loader and not restart the audio\n        // loaders.\n        mainSegmentLoader.resetEverything();\n      }\n\n      return;\n    } // Non-destructive resync\n\n\n    segmentLoader.resyncLoader();\n    startLoaders(activeGroup.playlistLoader, mediaType);\n  };\n};\n\nvar onGroupChanging = function onGroupChanging(type, settings) {\n  return function () {\n    var segmentLoader = settings.segmentLoaders[type],\n        mediaType = settings.mediaTypes[type];\n    mediaType.lastGroup_ = null;\n    segmentLoader.abort();\n    segmentLoader.pause();\n  };\n};\n/**\n * Returns a function to be called when the media track changes. It performs a\n * destructive reset of the SegmentLoader to ensure we start loading as close to\n * currentTime as possible.\n *\n * @param {string} type\n *        MediaGroup type\n * @param {Object} settings\n *        Object containing required information for media groups\n * @return {Function}\n *         Handler for a destructive reset of SegmentLoader when the active media\n *         track changes.\n * @function onTrackChanged\n */\n\n\nvar onTrackChanged = function onTrackChanged(type, settings) {\n  return function () {\n    var masterPlaylistLoader = settings.masterPlaylistLoader,\n        _settings$segmentLoad2 = settings.segmentLoaders,\n        segmentLoader = _settings$segmentLoad2[type],\n        mainSegmentLoader = _settings$segmentLoad2.main,\n        mediaType = settings.mediaTypes[type];\n    var activeTrack = mediaType.activeTrack();\n    var activeGroup = mediaType.getActiveGroup();\n    var previousActiveLoader = mediaType.activePlaylistLoader;\n    var lastTrack = mediaType.lastTrack_; // track did not change, do nothing\n\n    if (lastTrack && activeTrack && lastTrack.id === activeTrack.id) {\n      return;\n    }\n\n    mediaType.lastGroup_ = activeGroup;\n    mediaType.lastTrack_ = activeTrack;\n    stopLoaders(segmentLoader, mediaType);\n\n    if (!activeGroup) {\n      // there is no group active so we do not want to restart loaders\n      return;\n    }\n\n    if (activeGroup.isMasterPlaylist) {\n      // track did not change, do nothing\n      if (!activeTrack || !lastTrack || activeTrack.id === lastTrack.id) {\n        return;\n      }\n\n      var mpc = settings.vhs.masterPlaylistController_;\n      var newPlaylist = mpc.selectPlaylist(); // media will not change do nothing\n\n      if (mpc.media() === newPlaylist) {\n        return;\n      }\n\n      mediaType.logger_(\"track change. Switching master audio from \" + lastTrack.id + \" to \" + activeTrack.id);\n      masterPlaylistLoader.pause();\n      mainSegmentLoader.resetEverything();\n      mpc.fastQualityChange_(newPlaylist);\n      return;\n    }\n\n    if (type === 'AUDIO') {\n      if (!activeGroup.playlistLoader) {\n        // when switching from demuxed audio/video to muxed audio/video (noted by no\n        // playlist loader for the audio group), we want to do a destructive reset of the\n        // main segment loader and not restart the audio loaders\n        mainSegmentLoader.setAudio(true); // don't have to worry about disabling the audio of the audio segment loader since\n        // it should be stopped\n\n        mainSegmentLoader.resetEverything();\n        return;\n      } // although the segment loader is an audio segment loader, call the setAudio\n      // function to ensure it is prepared to re-append the init segment (or handle other\n      // config changes)\n\n\n      segmentLoader.setAudio(true);\n      mainSegmentLoader.setAudio(false);\n    }\n\n    if (previousActiveLoader === activeGroup.playlistLoader) {\n      // Nothing has actually changed. This can happen because track change events can fire\n      // multiple times for a \"single\" change. One for enabling the new active track, and\n      // one for disabling the track that was active\n      startLoaders(activeGroup.playlistLoader, mediaType);\n      return;\n    }\n\n    if (segmentLoader.track) {\n      // For WebVTT, set the new text track in the segmentloader\n      segmentLoader.track(activeTrack);\n    } // destructive reset\n\n\n    segmentLoader.resetEverything();\n    startLoaders(activeGroup.playlistLoader, mediaType);\n  };\n};\n\nvar onError = {\n  /**\n   * Returns a function to be called when a SegmentLoader or PlaylistLoader encounters\n   * an error.\n   *\n   * @param {string} type\n   *        MediaGroup type\n   * @param {Object} settings\n   *        Object containing required information for media groups\n   * @return {Function}\n   *         Error handler. Logs warning (or error if the playlist is blacklisted) to\n   *         console and switches back to default audio track.\n   * @function onError.AUDIO\n   */\n  AUDIO: function AUDIO(type, settings) {\n    return function () {\n      var segmentLoader = settings.segmentLoaders[type],\n          mediaType = settings.mediaTypes[type],\n          blacklistCurrentPlaylist = settings.blacklistCurrentPlaylist;\n      stopLoaders(segmentLoader, mediaType); // switch back to default audio track\n\n      var activeTrack = mediaType.activeTrack();\n      var activeGroup = mediaType.activeGroup();\n      var id = (activeGroup.filter(function (group) {\n        return group[\"default\"];\n      })[0] || activeGroup[0]).id;\n      var defaultTrack = mediaType.tracks[id];\n\n      if (activeTrack === defaultTrack) {\n        // Default track encountered an error. All we can do now is blacklist the current\n        // rendition and hope another will switch audio groups\n        blacklistCurrentPlaylist({\n          message: 'Problem encountered loading the default audio track.'\n        });\n        return;\n      }\n\n      videojs.log.warn('Problem encountered loading the alternate audio track.' + 'Switching back to default.');\n\n      for (var trackId in mediaType.tracks) {\n        mediaType.tracks[trackId].enabled = mediaType.tracks[trackId] === defaultTrack;\n      }\n\n      mediaType.onTrackChanged();\n    };\n  },\n\n  /**\n   * Returns a function to be called when a SegmentLoader or PlaylistLoader encounters\n   * an error.\n   *\n   * @param {string} type\n   *        MediaGroup type\n   * @param {Object} settings\n   *        Object containing required information for media groups\n   * @return {Function}\n   *         Error handler. Logs warning to console and disables the active subtitle track\n   * @function onError.SUBTITLES\n   */\n  SUBTITLES: function SUBTITLES(type, settings) {\n    return function () {\n      var segmentLoader = settings.segmentLoaders[type],\n          mediaType = settings.mediaTypes[type];\n      videojs.log.warn('Problem encountered loading the subtitle track.' + 'Disabling subtitle track.');\n      stopLoaders(segmentLoader, mediaType);\n      var track = mediaType.activeTrack();\n\n      if (track) {\n        track.mode = 'disabled';\n      }\n\n      mediaType.onTrackChanged();\n    };\n  }\n};\nvar setupListeners = {\n  /**\n   * Setup event listeners for audio playlist loader\n   *\n   * @param {string} type\n   *        MediaGroup type\n   * @param {PlaylistLoader|null} playlistLoader\n   *        PlaylistLoader to register listeners on\n   * @param {Object} settings\n   *        Object containing required information for media groups\n   * @function setupListeners.AUDIO\n   */\n  AUDIO: function AUDIO(type, playlistLoader, settings) {\n    if (!playlistLoader) {\n      // no playlist loader means audio will be muxed with the video\n      return;\n    }\n\n    var tech = settings.tech,\n        requestOptions = settings.requestOptions,\n        segmentLoader = settings.segmentLoaders[type];\n    playlistLoader.on('loadedmetadata', function () {\n      var media = playlistLoader.media();\n      segmentLoader.playlist(media, requestOptions); // if the video is already playing, or if this isn't a live video and preload\n      // permits, start downloading segments\n\n      if (!tech.paused() || media.endList && tech.preload() !== 'none') {\n        segmentLoader.load();\n      }\n    });\n    playlistLoader.on('loadedplaylist', function () {\n      segmentLoader.playlist(playlistLoader.media(), requestOptions); // If the player isn't paused, ensure that the segment loader is running\n\n      if (!tech.paused()) {\n        segmentLoader.load();\n      }\n    });\n    playlistLoader.on('error', onError[type](type, settings));\n  },\n\n  /**\n   * Setup event listeners for subtitle playlist loader\n   *\n   * @param {string} type\n   *        MediaGroup type\n   * @param {PlaylistLoader|null} playlistLoader\n   *        PlaylistLoader to register listeners on\n   * @param {Object} settings\n   *        Object containing required information for media groups\n   * @function setupListeners.SUBTITLES\n   */\n  SUBTITLES: function SUBTITLES(type, playlistLoader, settings) {\n    var tech = settings.tech,\n        requestOptions = settings.requestOptions,\n        segmentLoader = settings.segmentLoaders[type],\n        mediaType = settings.mediaTypes[type];\n    playlistLoader.on('loadedmetadata', function () {\n      var media = playlistLoader.media();\n      segmentLoader.playlist(media, requestOptions);\n      segmentLoader.track(mediaType.activeTrack()); // if the video is already playing, or if this isn't a live video and preload\n      // permits, start downloading segments\n\n      if (!tech.paused() || media.endList && tech.preload() !== 'none') {\n        segmentLoader.load();\n      }\n    });\n    playlistLoader.on('loadedplaylist', function () {\n      segmentLoader.playlist(playlistLoader.media(), requestOptions); // If the player isn't paused, ensure that the segment loader is running\n\n      if (!tech.paused()) {\n        segmentLoader.load();\n      }\n    });\n    playlistLoader.on('error', onError[type](type, settings));\n  }\n};\nvar initialize = {\n  /**\n   * Setup PlaylistLoaders and AudioTracks for the audio groups\n   *\n   * @param {string} type\n   *        MediaGroup type\n   * @param {Object} settings\n   *        Object containing required information for media groups\n   * @function initialize.AUDIO\n   */\n  'AUDIO': function AUDIO(type, settings) {\n    var vhs = settings.vhs,\n        sourceType = settings.sourceType,\n        segmentLoader = settings.segmentLoaders[type],\n        requestOptions = settings.requestOptions,\n        mediaGroups = settings.master.mediaGroups,\n        _settings$mediaTypes$ = settings.mediaTypes[type],\n        groups = _settings$mediaTypes$.groups,\n        tracks = _settings$mediaTypes$.tracks,\n        logger_ = _settings$mediaTypes$.logger_,\n        masterPlaylistLoader = settings.masterPlaylistLoader;\n    var audioOnlyMaster = isAudioOnly(masterPlaylistLoader.master); // force a default if we have none\n\n    if (!mediaGroups[type] || Object.keys(mediaGroups[type]).length === 0) {\n      mediaGroups[type] = {\n        main: {\n          \"default\": {\n            \"default\": true\n          }\n        }\n      };\n\n      if (audioOnlyMaster) {\n        mediaGroups[type].main[\"default\"].playlists = masterPlaylistLoader.master.playlists;\n      }\n    }\n\n    for (var groupId in mediaGroups[type]) {\n      if (!groups[groupId]) {\n        groups[groupId] = [];\n      }\n\n      for (var variantLabel in mediaGroups[type][groupId]) {\n        var properties = mediaGroups[type][groupId][variantLabel];\n        var playlistLoader = void 0;\n\n        if (audioOnlyMaster) {\n          logger_(\"AUDIO group '\" + groupId + \"' label '\" + variantLabel + \"' is a master playlist\");\n          properties.isMasterPlaylist = true;\n          playlistLoader = null; // if vhs-json was provided as the source, and the media playlist was resolved,\n          // use the resolved media playlist object\n        } else if (sourceType === 'vhs-json' && properties.playlists) {\n          playlistLoader = new PlaylistLoader(properties.playlists[0], vhs, requestOptions);\n        } else if (properties.resolvedUri) {\n          playlistLoader = new PlaylistLoader(properties.resolvedUri, vhs, requestOptions); // TODO: dash isn't the only type with properties.playlists\n          // should we even have properties.playlists in this check.\n        } else if (properties.playlists && sourceType === 'dash') {\n          playlistLoader = new DashPlaylistLoader(properties.playlists[0], vhs, requestOptions, masterPlaylistLoader);\n        } else {\n          // no resolvedUri means the audio is muxed with the video when using this\n          // audio track\n          playlistLoader = null;\n        }\n\n        properties = videojs.mergeOptions({\n          id: variantLabel,\n          playlistLoader: playlistLoader\n        }, properties);\n        setupListeners[type](type, properties.playlistLoader, settings);\n        groups[groupId].push(properties);\n\n        if (typeof tracks[variantLabel] === 'undefined') {\n          var track = new videojs.AudioTrack({\n            id: variantLabel,\n            kind: audioTrackKind_(properties),\n            enabled: false,\n            language: properties.language,\n            \"default\": properties[\"default\"],\n            label: variantLabel\n          });\n          tracks[variantLabel] = track;\n        }\n      }\n    } // setup single error event handler for the segment loader\n\n\n    segmentLoader.on('error', onError[type](type, settings));\n  },\n\n  /**\n   * Setup PlaylistLoaders and TextTracks for the subtitle groups\n   *\n   * @param {string} type\n   *        MediaGroup type\n   * @param {Object} settings\n   *        Object containing required information for media groups\n   * @function initialize.SUBTITLES\n   */\n  'SUBTITLES': function SUBTITLES(type, settings) {\n    var tech = settings.tech,\n        vhs = settings.vhs,\n        sourceType = settings.sourceType,\n        segmentLoader = settings.segmentLoaders[type],\n        requestOptions = settings.requestOptions,\n        mediaGroups = settings.master.mediaGroups,\n        _settings$mediaTypes$2 = settings.mediaTypes[type],\n        groups = _settings$mediaTypes$2.groups,\n        tracks = _settings$mediaTypes$2.tracks,\n        masterPlaylistLoader = settings.masterPlaylistLoader;\n\n    for (var groupId in mediaGroups[type]) {\n      if (!groups[groupId]) {\n        groups[groupId] = [];\n      }\n\n      for (var variantLabel in mediaGroups[type][groupId]) {\n        if (mediaGroups[type][groupId][variantLabel].forced) {\n          // Subtitle playlists with the forced attribute are not selectable in Safari.\n          // According to Apple's HLS Authoring Specification:\n          //   If content has forced subtitles and regular subtitles in a given language,\n          //   the regular subtitles track in that language MUST contain both the forced\n          //   subtitles and the regular subtitles for that language.\n          // Because of this requirement and that Safari does not add forced subtitles,\n          // forced subtitles are skipped here to maintain consistent experience across\n          // all platforms\n          continue;\n        }\n\n        var properties = mediaGroups[type][groupId][variantLabel];\n        var playlistLoader = void 0;\n\n        if (sourceType === 'hls') {\n          playlistLoader = new PlaylistLoader(properties.resolvedUri, vhs, requestOptions);\n        } else if (sourceType === 'dash') {\n          var playlists = properties.playlists.filter(function (p) {\n            return p.excludeUntil !== Infinity;\n          });\n\n          if (!playlists.length) {\n            return;\n          }\n\n          playlistLoader = new DashPlaylistLoader(properties.playlists[0], vhs, requestOptions, masterPlaylistLoader);\n        } else if (sourceType === 'vhs-json') {\n          playlistLoader = new PlaylistLoader( // if the vhs-json object included the media playlist, use the media playlist\n          // as provided, otherwise use the resolved URI to load the playlist\n          properties.playlists ? properties.playlists[0] : properties.resolvedUri, vhs, requestOptions);\n        }\n\n        properties = videojs.mergeOptions({\n          id: variantLabel,\n          playlistLoader: playlistLoader\n        }, properties);\n        setupListeners[type](type, properties.playlistLoader, settings);\n        groups[groupId].push(properties);\n\n        if (typeof tracks[variantLabel] === 'undefined') {\n          var track = tech.addRemoteTextTrack({\n            id: variantLabel,\n            kind: 'subtitles',\n            \"default\": properties[\"default\"] && properties.autoselect,\n            language: properties.language,\n            label: variantLabel\n          }, false).track;\n          tracks[variantLabel] = track;\n        }\n      }\n    } // setup single error event handler for the segment loader\n\n\n    segmentLoader.on('error', onError[type](type, settings));\n  },\n\n  /**\n   * Setup TextTracks for the closed-caption groups\n   *\n   * @param {String} type\n   *        MediaGroup type\n   * @param {Object} settings\n   *        Object containing required information for media groups\n   * @function initialize['CLOSED-CAPTIONS']\n   */\n  'CLOSED-CAPTIONS': function CLOSEDCAPTIONS(type, settings) {\n    var tech = settings.tech,\n        mediaGroups = settings.master.mediaGroups,\n        _settings$mediaTypes$3 = settings.mediaTypes[type],\n        groups = _settings$mediaTypes$3.groups,\n        tracks = _settings$mediaTypes$3.tracks;\n\n    for (var groupId in mediaGroups[type]) {\n      if (!groups[groupId]) {\n        groups[groupId] = [];\n      }\n\n      for (var variantLabel in mediaGroups[type][groupId]) {\n        var properties = mediaGroups[type][groupId][variantLabel]; // Look for either 608 (CCn) or 708 (SERVICEn) caption services\n\n        if (!/^(?:CC|SERVICE)/.test(properties.instreamId)) {\n          continue;\n        }\n\n        var captionServices = tech.options_.vhs && tech.options_.vhs.captionServices || {};\n        var newProps = {\n          label: variantLabel,\n          language: properties.language,\n          instreamId: properties.instreamId,\n          \"default\": properties[\"default\"] && properties.autoselect\n        };\n\n        if (captionServices[newProps.instreamId]) {\n          newProps = videojs.mergeOptions(newProps, captionServices[newProps.instreamId]);\n        }\n\n        if (newProps[\"default\"] === undefined) {\n          delete newProps[\"default\"];\n        } // No PlaylistLoader is required for Closed-Captions because the captions are\n        // embedded within the video stream\n\n\n        groups[groupId].push(videojs.mergeOptions({\n          id: variantLabel\n        }, properties));\n\n        if (typeof tracks[variantLabel] === 'undefined') {\n          var track = tech.addRemoteTextTrack({\n            id: newProps.instreamId,\n            kind: 'captions',\n            \"default\": newProps[\"default\"],\n            language: newProps.language,\n            label: newProps.label\n          }, false).track;\n          tracks[variantLabel] = track;\n        }\n      }\n    }\n  }\n};\n\nvar groupMatch = function groupMatch(list, media) {\n  for (var i = 0; i < list.length; i++) {\n    if (playlistMatch(media, list[i])) {\n      return true;\n    }\n\n    if (list[i].playlists && groupMatch(list[i].playlists, media)) {\n      return true;\n    }\n  }\n\n  return false;\n};\n/**\n * Returns a function used to get the active group of the provided type\n *\n * @param {string} type\n *        MediaGroup type\n * @param {Object} settings\n *        Object containing required information for media groups\n * @return {Function}\n *         Function that returns the active media group for the provided type. Takes an\n *         optional parameter {TextTrack} track. If no track is provided, a list of all\n *         variants in the group, otherwise the variant corresponding to the provided\n *         track is returned.\n * @function activeGroup\n */\n\n\nvar activeGroup = function activeGroup(type, settings) {\n  return function (track) {\n    var masterPlaylistLoader = settings.masterPlaylistLoader,\n        groups = settings.mediaTypes[type].groups;\n    var media = masterPlaylistLoader.media();\n\n    if (!media) {\n      return null;\n    }\n\n    var variants = null; // set to variants to main media active group\n\n    if (media.attributes[type]) {\n      variants = groups[media.attributes[type]];\n    }\n\n    var groupKeys = Object.keys(groups);\n\n    if (!variants) {\n      // find the masterPlaylistLoader media\n      // that is in a media group if we are dealing\n      // with audio only\n      if (type === 'AUDIO' && groupKeys.length > 1 && isAudioOnly(settings.master)) {\n        for (var i = 0; i < groupKeys.length; i++) {\n          var groupPropertyList = groups[groupKeys[i]];\n\n          if (groupMatch(groupPropertyList, media)) {\n            variants = groupPropertyList;\n            break;\n          }\n        } // use the main group if it exists\n\n      } else if (groups.main) {\n        variants = groups.main; // only one group, use that one\n      } else if (groupKeys.length === 1) {\n        variants = groups[groupKeys[0]];\n      }\n    }\n\n    if (typeof track === 'undefined') {\n      return variants;\n    }\n\n    if (track === null || !variants) {\n      // An active track was specified so a corresponding group is expected. track === null\n      // means no track is currently active so there is no corresponding group\n      return null;\n    }\n\n    return variants.filter(function (props) {\n      return props.id === track.id;\n    })[0] || null;\n  };\n};\n\nvar activeTrack = {\n  /**\n   * Returns a function used to get the active track of type provided\n   *\n   * @param {string} type\n   *        MediaGroup type\n   * @param {Object} settings\n   *        Object containing required information for media groups\n   * @return {Function}\n   *         Function that returns the active media track for the provided type. Returns\n   *         null if no track is active\n   * @function activeTrack.AUDIO\n   */\n  AUDIO: function AUDIO(type, settings) {\n    return function () {\n      var tracks = settings.mediaTypes[type].tracks;\n\n      for (var id in tracks) {\n        if (tracks[id].enabled) {\n          return tracks[id];\n        }\n      }\n\n      return null;\n    };\n  },\n\n  /**\n   * Returns a function used to get the active track of type provided\n   *\n   * @param {string} type\n   *        MediaGroup type\n   * @param {Object} settings\n   *        Object containing required information for media groups\n   * @return {Function}\n   *         Function that returns the active media track for the provided type. Returns\n   *         null if no track is active\n   * @function activeTrack.SUBTITLES\n   */\n  SUBTITLES: function SUBTITLES(type, settings) {\n    return function () {\n      var tracks = settings.mediaTypes[type].tracks;\n\n      for (var id in tracks) {\n        if (tracks[id].mode === 'showing' || tracks[id].mode === 'hidden') {\n          return tracks[id];\n        }\n      }\n\n      return null;\n    };\n  }\n};\n\nvar getActiveGroup = function getActiveGroup(type, _ref) {\n  var mediaTypes = _ref.mediaTypes;\n  return function () {\n    var activeTrack_ = mediaTypes[type].activeTrack();\n\n    if (!activeTrack_) {\n      return null;\n    }\n\n    return mediaTypes[type].activeGroup(activeTrack_);\n  };\n};\n/**\n * Setup PlaylistLoaders and Tracks for media groups (Audio, Subtitles,\n * Closed-Captions) specified in the master manifest.\n *\n * @param {Object} settings\n *        Object containing required information for setting up the media groups\n * @param {Tech} settings.tech\n *        The tech of the player\n * @param {Object} settings.requestOptions\n *        XHR request options used by the segment loaders\n * @param {PlaylistLoader} settings.masterPlaylistLoader\n *        PlaylistLoader for the master source\n * @param {VhsHandler} settings.vhs\n *        VHS SourceHandler\n * @param {Object} settings.master\n *        The parsed master manifest\n * @param {Object} settings.mediaTypes\n *        Object to store the loaders, tracks, and utility methods for each media type\n * @param {Function} settings.blacklistCurrentPlaylist\n *        Blacklists the current rendition and forces a rendition switch.\n * @function setupMediaGroups\n */\n\n\nvar setupMediaGroups = function setupMediaGroups(settings) {\n  ['AUDIO', 'SUBTITLES', 'CLOSED-CAPTIONS'].forEach(function (type) {\n    initialize[type](type, settings);\n  });\n  var mediaTypes = settings.mediaTypes,\n      masterPlaylistLoader = settings.masterPlaylistLoader,\n      tech = settings.tech,\n      vhs = settings.vhs,\n      _settings$segmentLoad3 = settings.segmentLoaders,\n      audioSegmentLoader = _settings$segmentLoad3['AUDIO'],\n      mainSegmentLoader = _settings$segmentLoad3.main; // setup active group and track getters and change event handlers\n\n  ['AUDIO', 'SUBTITLES'].forEach(function (type) {\n    mediaTypes[type].activeGroup = activeGroup(type, settings);\n    mediaTypes[type].activeTrack = activeTrack[type](type, settings);\n    mediaTypes[type].onGroupChanged = onGroupChanged(type, settings);\n    mediaTypes[type].onGroupChanging = onGroupChanging(type, settings);\n    mediaTypes[type].onTrackChanged = onTrackChanged(type, settings);\n    mediaTypes[type].getActiveGroup = getActiveGroup(type, settings);\n  }); // DO NOT enable the default subtitle or caption track.\n  // DO enable the default audio track\n\n  var audioGroup = mediaTypes.AUDIO.activeGroup();\n\n  if (audioGroup) {\n    var groupId = (audioGroup.filter(function (group) {\n      return group[\"default\"];\n    })[0] || audioGroup[0]).id;\n    mediaTypes.AUDIO.tracks[groupId].enabled = true;\n    mediaTypes.AUDIO.onGroupChanged();\n    mediaTypes.AUDIO.onTrackChanged();\n    var activeAudioGroup = mediaTypes.AUDIO.getActiveGroup(); // a similar check for handling setAudio on each loader is run again each time the\n    // track is changed, but needs to be handled here since the track may not be considered\n    // changed on the first call to onTrackChanged\n\n    if (!activeAudioGroup.playlistLoader) {\n      // either audio is muxed with video or the stream is audio only\n      mainSegmentLoader.setAudio(true);\n    } else {\n      // audio is demuxed\n      mainSegmentLoader.setAudio(false);\n      audioSegmentLoader.setAudio(true);\n    }\n  }\n\n  masterPlaylistLoader.on('mediachange', function () {\n    ['AUDIO', 'SUBTITLES'].forEach(function (type) {\n      return mediaTypes[type].onGroupChanged();\n    });\n  });\n  masterPlaylistLoader.on('mediachanging', function () {\n    ['AUDIO', 'SUBTITLES'].forEach(function (type) {\n      return mediaTypes[type].onGroupChanging();\n    });\n  }); // custom audio track change event handler for usage event\n\n  var onAudioTrackChanged = function onAudioTrackChanged() {\n    mediaTypes.AUDIO.onTrackChanged();\n    tech.trigger({\n      type: 'usage',\n      name: 'vhs-audio-change'\n    });\n    tech.trigger({\n      type: 'usage',\n      name: 'hls-audio-change'\n    });\n  };\n\n  tech.audioTracks().addEventListener('change', onAudioTrackChanged);\n  tech.remoteTextTracks().addEventListener('change', mediaTypes.SUBTITLES.onTrackChanged);\n  vhs.on('dispose', function () {\n    tech.audioTracks().removeEventListener('change', onAudioTrackChanged);\n    tech.remoteTextTracks().removeEventListener('change', mediaTypes.SUBTITLES.onTrackChanged);\n  }); // clear existing audio tracks and add the ones we just created\n\n  tech.clearTracks('audio');\n\n  for (var id in mediaTypes.AUDIO.tracks) {\n    tech.audioTracks().addTrack(mediaTypes.AUDIO.tracks[id]);\n  }\n};\n/**\n * Creates skeleton object used to store the loaders, tracks, and utility methods for each\n * media type\n *\n * @return {Object}\n *         Object to store the loaders, tracks, and utility methods for each media type\n * @function createMediaTypes\n */\n\n\nvar createMediaTypes = function createMediaTypes() {\n  var mediaTypes = {};\n  ['AUDIO', 'SUBTITLES', 'CLOSED-CAPTIONS'].forEach(function (type) {\n    mediaTypes[type] = {\n      groups: {},\n      tracks: {},\n      activePlaylistLoader: null,\n      activeGroup: noop,\n      activeTrack: noop,\n      getActiveGroup: noop,\n      onGroupChanged: noop,\n      onTrackChanged: noop,\n      lastTrack_: null,\n      logger_: logger(\"MediaGroups[\" + type + \"]\")\n    };\n  });\n  return mediaTypes;\n};\n\nvar ABORT_EARLY_BLACKLIST_SECONDS = 60 * 2;\nvar Vhs$1; // SegmentLoader stats that need to have each loader's\n// values summed to calculate the final value\n\nvar loaderStats = ['mediaRequests', 'mediaRequestsAborted', 'mediaRequestsTimedout', 'mediaRequestsErrored', 'mediaTransferDuration', 'mediaBytesTransferred', 'mediaAppends'];\n\nvar sumLoaderStat = function sumLoaderStat(stat) {\n  return this.audioSegmentLoader_[stat] + this.mainSegmentLoader_[stat];\n};\n\nvar shouldSwitchToMedia = function shouldSwitchToMedia(_ref) {\n  var currentPlaylist = _ref.currentPlaylist,\n      nextPlaylist = _ref.nextPlaylist,\n      forwardBuffer = _ref.forwardBuffer,\n      bufferLowWaterLine = _ref.bufferLowWaterLine,\n      bufferHighWaterLine = _ref.bufferHighWaterLine,\n      duration = _ref.duration,\n      experimentalBufferBasedABR = _ref.experimentalBufferBasedABR,\n      log = _ref.log; // we have no other playlist to switch to\n\n  if (!nextPlaylist) {\n    videojs.log.warn('We received no playlist to switch to. Please check your stream.');\n    return false;\n  }\n\n  var sharedLogLine = \"allowing switch \" + (currentPlaylist && currentPlaylist.id || 'null') + \" -> \" + nextPlaylist.id;\n\n  if (!currentPlaylist) {\n    log(sharedLogLine + \" as current playlist is not set\");\n    return true;\n  } // no need to switch if playlist is the same\n\n\n  if (nextPlaylist.id === currentPlaylist.id) {\n    return false;\n  } // If the playlist is live, then we want to not take low water line into account.\n  // This is because in LIVE, the player plays 3 segments from the end of the\n  // playlist, and if `BUFFER_LOW_WATER_LINE` is greater than the duration availble\n  // in those segments, a viewer will never experience a rendition upswitch.\n\n\n  if (!currentPlaylist.endList) {\n    log(sharedLogLine + \" as current playlist is live\");\n    return true;\n  }\n\n  var maxBufferLowWaterLine = experimentalBufferBasedABR ? Config.EXPERIMENTAL_MAX_BUFFER_LOW_WATER_LINE : Config.MAX_BUFFER_LOW_WATER_LINE; // For the same reason as LIVE, we ignore the low water line when the VOD\n  // duration is below the max potential low water line\n\n  if (duration < maxBufferLowWaterLine) {\n    log(sharedLogLine + \" as duration < max low water line (\" + duration + \" < \" + maxBufferLowWaterLine + \")\");\n    return true;\n  }\n\n  var nextBandwidth = nextPlaylist.attributes.BANDWIDTH;\n  var currBandwidth = currentPlaylist.attributes.BANDWIDTH; // when switching down, if our buffer is lower than the high water line,\n  // we can switch down\n\n  if (nextBandwidth < currBandwidth && (!experimentalBufferBasedABR || forwardBuffer < bufferHighWaterLine)) {\n    var logLine = sharedLogLine + \" as next bandwidth < current bandwidth (\" + nextBandwidth + \" < \" + currBandwidth + \")\";\n\n    if (experimentalBufferBasedABR) {\n      logLine += \" and forwardBuffer < bufferHighWaterLine (\" + forwardBuffer + \" < \" + bufferHighWaterLine + \")\";\n    }\n\n    log(logLine);\n    return true;\n  } // and if our buffer is higher than the low water line,\n  // we can switch up\n\n\n  if ((!experimentalBufferBasedABR || nextBandwidth > currBandwidth) && forwardBuffer >= bufferLowWaterLine) {\n    var _logLine = sharedLogLine + \" as forwardBuffer >= bufferLowWaterLine (\" + forwardBuffer + \" >= \" + bufferLowWaterLine + \")\";\n\n    if (experimentalBufferBasedABR) {\n      _logLine += \" and next bandwidth > current bandwidth (\" + nextBandwidth + \" > \" + currBandwidth + \")\";\n    }\n\n    log(_logLine);\n    return true;\n  }\n\n  log(\"not \" + sharedLogLine + \" as no switching criteria met\");\n  return false;\n};\n/**\n * the master playlist controller controller all interactons\n * between playlists and segmentloaders. At this time this mainly\n * involves a master playlist and a series of audio playlists\n * if they are available\n *\n * @class MasterPlaylistController\n * @extends videojs.EventTarget\n */\n\n\nvar MasterPlaylistController = /*#__PURE__*/function (_videojs$EventTarget) {\n  _inheritsLoose(MasterPlaylistController, _videojs$EventTarget);\n\n  function MasterPlaylistController(options) {\n    var _this;\n\n    _this = _videojs$EventTarget.call(this) || this;\n    var src = options.src,\n        handleManifestRedirects = options.handleManifestRedirects,\n        withCredentials = options.withCredentials,\n        tech = options.tech,\n        bandwidth = options.bandwidth,\n        externVhs = options.externVhs,\n        useCueTags = options.useCueTags,\n        blacklistDuration = options.blacklistDuration,\n        enableLowInitialPlaylist = options.enableLowInitialPlaylist,\n        sourceType = options.sourceType,\n        cacheEncryptionKeys = options.cacheEncryptionKeys,\n        experimentalBufferBasedABR = options.experimentalBufferBasedABR,\n        experimentalLeastPixelDiffSelector = options.experimentalLeastPixelDiffSelector;\n\n    if (!src) {\n      throw new Error('A non-empty playlist URL or JSON manifest string is required');\n    }\n\n    var maxPlaylistRetries = options.maxPlaylistRetries;\n\n    if (maxPlaylistRetries === null || typeof maxPlaylistRetries === 'undefined') {\n      maxPlaylistRetries = Infinity;\n    }\n\n    Vhs$1 = externVhs;\n    _this.experimentalBufferBasedABR = Boolean(experimentalBufferBasedABR);\n    _this.experimentalLeastPixelDiffSelector = Boolean(experimentalLeastPixelDiffSelector);\n    _this.withCredentials = withCredentials;\n    _this.tech_ = tech;\n    _this.vhs_ = tech.vhs;\n    _this.sourceType_ = sourceType;\n    _this.useCueTags_ = useCueTags;\n    _this.blacklistDuration = blacklistDuration;\n    _this.maxPlaylistRetries = maxPlaylistRetries;\n    _this.enableLowInitialPlaylist = enableLowInitialPlaylist;\n\n    if (_this.useCueTags_) {\n      _this.cueTagsTrack_ = _this.tech_.addTextTrack('metadata', 'ad-cues');\n      _this.cueTagsTrack_.inBandMetadataTrackDispatchType = '';\n    }\n\n    _this.requestOptions_ = {\n      withCredentials: withCredentials,\n      handleManifestRedirects: handleManifestRedirects,\n      maxPlaylistRetries: maxPlaylistRetries,\n      timeout: null\n    };\n\n    _this.on('error', _this.pauseLoading);\n\n    _this.mediaTypes_ = createMediaTypes();\n    _this.mediaSource = new window.MediaSource();\n    _this.handleDurationChange_ = _this.handleDurationChange_.bind(_assertThisInitialized(_this));\n    _this.handleSourceOpen_ = _this.handleSourceOpen_.bind(_assertThisInitialized(_this));\n    _this.handleSourceEnded_ = _this.handleSourceEnded_.bind(_assertThisInitialized(_this));\n\n    _this.mediaSource.addEventListener('durationchange', _this.handleDurationChange_); // load the media source into the player\n\n\n    _this.mediaSource.addEventListener('sourceopen', _this.handleSourceOpen_);\n\n    _this.mediaSource.addEventListener('sourceended', _this.handleSourceEnded_); // we don't have to handle sourceclose since dispose will handle termination of\n    // everything, and the MediaSource should not be detached without a proper disposal\n\n\n    _this.seekable_ = videojs.createTimeRanges();\n    _this.hasPlayed_ = false;\n    _this.syncController_ = new SyncController(options);\n    _this.segmentMetadataTrack_ = tech.addRemoteTextTrack({\n      kind: 'metadata',\n      label: 'segment-metadata'\n    }, false).track;\n    _this.decrypter_ = new Decrypter();\n    _this.sourceUpdater_ = new SourceUpdater(_this.mediaSource);\n    _this.inbandTextTracks_ = {};\n    _this.timelineChangeController_ = new TimelineChangeController();\n    var segmentLoaderSettings = {\n      vhs: _this.vhs_,\n      parse708captions: options.parse708captions,\n      mediaSource: _this.mediaSource,\n      currentTime: _this.tech_.currentTime.bind(_this.tech_),\n      seekable: function seekable() {\n        return _this.seekable();\n      },\n      seeking: function seeking() {\n        return _this.tech_.seeking();\n      },\n      duration: function duration() {\n        return _this.duration();\n      },\n      hasPlayed: function hasPlayed() {\n        return _this.hasPlayed_;\n      },\n      goalBufferLength: function goalBufferLength() {\n        return _this.goalBufferLength();\n      },\n      bandwidth: bandwidth,\n      syncController: _this.syncController_,\n      decrypter: _this.decrypter_,\n      sourceType: _this.sourceType_,\n      inbandTextTracks: _this.inbandTextTracks_,\n      cacheEncryptionKeys: cacheEncryptionKeys,\n      sourceUpdater: _this.sourceUpdater_,\n      timelineChangeController: _this.timelineChangeController_,\n      experimentalExactManifestTimings: options.experimentalExactManifestTimings\n    }; // The source type check not only determines whether a special DASH playlist loader\n    // should be used, but also covers the case where the provided src is a vhs-json\n    // manifest object (instead of a URL). In the case of vhs-json, the default\n    // PlaylistLoader should be used.\n\n    _this.masterPlaylistLoader_ = _this.sourceType_ === 'dash' ? new DashPlaylistLoader(src, _this.vhs_, _this.requestOptions_) : new PlaylistLoader(src, _this.vhs_, _this.requestOptions_);\n\n    _this.setupMasterPlaylistLoaderListeners_(); // setup segment loaders\n    // combined audio/video or just video when alternate audio track is selected\n\n\n    _this.mainSegmentLoader_ = new SegmentLoader(videojs.mergeOptions(segmentLoaderSettings, {\n      segmentMetadataTrack: _this.segmentMetadataTrack_,\n      loaderType: 'main'\n    }), options); // alternate audio track\n\n    _this.audioSegmentLoader_ = new SegmentLoader(videojs.mergeOptions(segmentLoaderSettings, {\n      loaderType: 'audio'\n    }), options);\n    _this.subtitleSegmentLoader_ = new VTTSegmentLoader(videojs.mergeOptions(segmentLoaderSettings, {\n      loaderType: 'vtt',\n      featuresNativeTextTracks: _this.tech_.featuresNativeTextTracks\n    }), options);\n\n    _this.setupSegmentLoaderListeners_();\n\n    if (_this.experimentalBufferBasedABR) {\n      _this.masterPlaylistLoader_.one('loadedplaylist', function () {\n        return _this.startABRTimer_();\n      });\n\n      _this.tech_.on('pause', function () {\n        return _this.stopABRTimer_();\n      });\n\n      _this.tech_.on('play', function () {\n        return _this.startABRTimer_();\n      });\n    } // Create SegmentLoader stat-getters\n    // mediaRequests_\n    // mediaRequestsAborted_\n    // mediaRequestsTimedout_\n    // mediaRequestsErrored_\n    // mediaTransferDuration_\n    // mediaBytesTransferred_\n    // mediaAppends_\n\n\n    loaderStats.forEach(function (stat) {\n      _this[stat + '_'] = sumLoaderStat.bind(_assertThisInitialized(_this), stat);\n    });\n    _this.logger_ = logger('MPC');\n    _this.triggeredFmp4Usage = false;\n\n    if (_this.tech_.preload() === 'none') {\n      _this.loadOnPlay_ = function () {\n        _this.loadOnPlay_ = null;\n\n        _this.masterPlaylistLoader_.load();\n      };\n\n      _this.tech_.one('play', _this.loadOnPlay_);\n    } else {\n      _this.masterPlaylistLoader_.load();\n    }\n\n    _this.timeToLoadedData__ = -1;\n    _this.mainAppendsToLoadedData__ = -1;\n    _this.audioAppendsToLoadedData__ = -1;\n    var event = _this.tech_.preload() === 'none' ? 'play' : 'loadstart'; // start the first frame timer on loadstart or play (for preload none)\n\n    _this.tech_.one(event, function () {\n      var timeToLoadedDataStart = Date.now();\n\n      _this.tech_.one('loadeddata', function () {\n        _this.timeToLoadedData__ = Date.now() - timeToLoadedDataStart;\n        _this.mainAppendsToLoadedData__ = _this.mainSegmentLoader_.mediaAppends;\n        _this.audioAppendsToLoadedData__ = _this.audioSegmentLoader_.mediaAppends;\n      });\n    });\n\n    return _this;\n  }\n\n  var _proto = MasterPlaylistController.prototype;\n\n  _proto.mainAppendsToLoadedData_ = function mainAppendsToLoadedData_() {\n    return this.mainAppendsToLoadedData__;\n  };\n\n  _proto.audioAppendsToLoadedData_ = function audioAppendsToLoadedData_() {\n    return this.audioAppendsToLoadedData__;\n  };\n\n  _proto.appendsToLoadedData_ = function appendsToLoadedData_() {\n    var main = this.mainAppendsToLoadedData_();\n    var audio = this.audioAppendsToLoadedData_();\n\n    if (main === -1 || audio === -1) {\n      return -1;\n    }\n\n    return main + audio;\n  };\n\n  _proto.timeToLoadedData_ = function timeToLoadedData_() {\n    return this.timeToLoadedData__;\n  }\n  /**\n   * Run selectPlaylist and switch to the new playlist if we should\n   *\n   * @private\n   *\n   */\n  ;\n\n  _proto.checkABR_ = function checkABR_() {\n    var nextPlaylist = this.selectPlaylist();\n\n    if (nextPlaylist && this.shouldSwitchToMedia_(nextPlaylist)) {\n      this.switchMedia_(nextPlaylist, 'abr');\n    }\n  };\n\n  _proto.switchMedia_ = function switchMedia_(playlist, cause, delay) {\n    var oldMedia = this.media();\n    var oldId = oldMedia && (oldMedia.id || oldMedia.uri);\n    var newId = playlist.id || playlist.uri;\n\n    if (oldId && oldId !== newId) {\n      this.logger_(\"switch media \" + oldId + \" -> \" + newId + \" from \" + cause);\n      this.tech_.trigger({\n        type: 'usage',\n        name: \"vhs-rendition-change-\" + cause\n      });\n    }\n\n    this.masterPlaylistLoader_.media(playlist, delay);\n  }\n  /**\n   * Start a timer that periodically calls checkABR_\n   *\n   * @private\n   */\n  ;\n\n  _proto.startABRTimer_ = function startABRTimer_() {\n    var _this2 = this;\n\n    this.stopABRTimer_();\n    this.abrTimer_ = window.setInterval(function () {\n      return _this2.checkABR_();\n    }, 250);\n  }\n  /**\n   * Stop the timer that periodically calls checkABR_\n   *\n   * @private\n   */\n  ;\n\n  _proto.stopABRTimer_ = function stopABRTimer_() {\n    // if we're scrubbing, we don't need to pause.\n    // This getter will be added to Video.js in version 7.11.\n    if (this.tech_.scrubbing && this.tech_.scrubbing()) {\n      return;\n    }\n\n    window.clearInterval(this.abrTimer_);\n    this.abrTimer_ = null;\n  }\n  /**\n   * Get a list of playlists for the currently selected audio playlist\n   *\n   * @return {Array} the array of audio playlists\n   */\n  ;\n\n  _proto.getAudioTrackPlaylists_ = function getAudioTrackPlaylists_() {\n    var master = this.master();\n    var defaultPlaylists = master && master.playlists || []; // if we don't have any audio groups then we can only\n    // assume that the audio tracks are contained in masters\n    // playlist array, use that or an empty array.\n\n    if (!master || !master.mediaGroups || !master.mediaGroups.AUDIO) {\n      return defaultPlaylists;\n    }\n\n    var AUDIO = master.mediaGroups.AUDIO;\n    var groupKeys = Object.keys(AUDIO);\n    var track; // get the current active track\n\n    if (Object.keys(this.mediaTypes_.AUDIO.groups).length) {\n      track = this.mediaTypes_.AUDIO.activeTrack(); // or get the default track from master if mediaTypes_ isn't setup yet\n    } else {\n      // default group is `main` or just the first group.\n      var defaultGroup = AUDIO.main || groupKeys.length && AUDIO[groupKeys[0]];\n\n      for (var label in defaultGroup) {\n        if (defaultGroup[label][\"default\"]) {\n          track = {\n            label: label\n          };\n          break;\n        }\n      }\n    } // no active track no playlists.\n\n\n    if (!track) {\n      return defaultPlaylists;\n    }\n\n    var playlists = []; // get all of the playlists that are possible for the\n    // active track.\n\n    for (var group in AUDIO) {\n      if (AUDIO[group][track.label]) {\n        var properties = AUDIO[group][track.label];\n\n        if (properties.playlists && properties.playlists.length) {\n          playlists.push.apply(playlists, properties.playlists);\n        } else if (properties.uri) {\n          playlists.push(properties);\n        } else if (master.playlists.length) {\n          // if an audio group does not have a uri\n          // see if we have main playlists that use it as a group.\n          // if we do then add those to the playlists list.\n          for (var i = 0; i < master.playlists.length; i++) {\n            var playlist = master.playlists[i];\n\n            if (playlist.attributes && playlist.attributes.AUDIO && playlist.attributes.AUDIO === group) {\n              playlists.push(playlist);\n            }\n          }\n        }\n      }\n    }\n\n    if (!playlists.length) {\n      return defaultPlaylists;\n    }\n\n    return playlists;\n  }\n  /**\n   * Register event handlers on the master playlist loader. A helper\n   * function for construction time.\n   *\n   * @private\n   */\n  ;\n\n  _proto.setupMasterPlaylistLoaderListeners_ = function setupMasterPlaylistLoaderListeners_() {\n    var _this3 = this;\n\n    this.masterPlaylistLoader_.on('loadedmetadata', function () {\n      var media = _this3.masterPlaylistLoader_.media();\n\n      var requestTimeout = media.targetDuration * 1.5 * 1000; // If we don't have any more available playlists, we don't want to\n      // timeout the request.\n\n      if (isLowestEnabledRendition(_this3.masterPlaylistLoader_.master, _this3.masterPlaylistLoader_.media())) {\n        _this3.requestOptions_.timeout = 0;\n      } else {\n        _this3.requestOptions_.timeout = requestTimeout;\n      } // if this isn't a live video and preload permits, start\n      // downloading segments\n\n\n      if (media.endList && _this3.tech_.preload() !== 'none') {\n        _this3.mainSegmentLoader_.playlist(media, _this3.requestOptions_);\n\n        _this3.mainSegmentLoader_.load();\n      }\n\n      setupMediaGroups({\n        sourceType: _this3.sourceType_,\n        segmentLoaders: {\n          AUDIO: _this3.audioSegmentLoader_,\n          SUBTITLES: _this3.subtitleSegmentLoader_,\n          main: _this3.mainSegmentLoader_\n        },\n        tech: _this3.tech_,\n        requestOptions: _this3.requestOptions_,\n        masterPlaylistLoader: _this3.masterPlaylistLoader_,\n        vhs: _this3.vhs_,\n        master: _this3.master(),\n        mediaTypes: _this3.mediaTypes_,\n        blacklistCurrentPlaylist: _this3.blacklistCurrentPlaylist.bind(_this3)\n      });\n\n      _this3.triggerPresenceUsage_(_this3.master(), media);\n\n      _this3.setupFirstPlay();\n\n      if (!_this3.mediaTypes_.AUDIO.activePlaylistLoader || _this3.mediaTypes_.AUDIO.activePlaylistLoader.media()) {\n        _this3.trigger('selectedinitialmedia');\n      } else {\n        // We must wait for the active audio playlist loader to\n        // finish setting up before triggering this event so the\n        // representations API and EME setup is correct\n        _this3.mediaTypes_.AUDIO.activePlaylistLoader.one('loadedmetadata', function () {\n          _this3.trigger('selectedinitialmedia');\n        });\n      }\n    });\n    this.masterPlaylistLoader_.on('loadedplaylist', function () {\n      if (_this3.loadOnPlay_) {\n        _this3.tech_.off('play', _this3.loadOnPlay_);\n      }\n\n      var updatedPlaylist = _this3.masterPlaylistLoader_.media();\n\n      if (!updatedPlaylist) {\n        // exclude any variants that are not supported by the browser before selecting\n        // an initial media as the playlist selectors do not consider browser support\n        _this3.excludeUnsupportedVariants_();\n\n        var selectedMedia;\n\n        if (_this3.enableLowInitialPlaylist) {\n          selectedMedia = _this3.selectInitialPlaylist();\n        }\n\n        if (!selectedMedia) {\n          selectedMedia = _this3.selectPlaylist();\n        }\n\n        if (!selectedMedia || !_this3.shouldSwitchToMedia_(selectedMedia)) {\n          return;\n        }\n\n        _this3.initialMedia_ = selectedMedia;\n\n        _this3.switchMedia_(_this3.initialMedia_, 'initial'); // Under the standard case where a source URL is provided, loadedplaylist will\n        // fire again since the playlist will be requested. In the case of vhs-json\n        // (where the manifest object is provided as the source), when the media\n        // playlist's `segments` list is already available, a media playlist won't be\n        // requested, and loadedplaylist won't fire again, so the playlist handler must be\n        // called on its own here.\n\n\n        var haveJsonSource = _this3.sourceType_ === 'vhs-json' && _this3.initialMedia_.segments;\n\n        if (!haveJsonSource) {\n          return;\n        }\n\n        updatedPlaylist = _this3.initialMedia_;\n      }\n\n      _this3.handleUpdatedMediaPlaylist(updatedPlaylist);\n    });\n    this.masterPlaylistLoader_.on('error', function () {\n      _this3.blacklistCurrentPlaylist(_this3.masterPlaylistLoader_.error);\n    });\n    this.masterPlaylistLoader_.on('mediachanging', function () {\n      _this3.mainSegmentLoader_.abort();\n\n      _this3.mainSegmentLoader_.pause();\n    });\n    this.masterPlaylistLoader_.on('mediachange', function () {\n      var media = _this3.masterPlaylistLoader_.media();\n\n      var requestTimeout = media.targetDuration * 1.5 * 1000; // If we don't have any more available playlists, we don't want to\n      // timeout the request.\n\n      if (isLowestEnabledRendition(_this3.masterPlaylistLoader_.master, _this3.masterPlaylistLoader_.media())) {\n        _this3.requestOptions_.timeout = 0;\n      } else {\n        _this3.requestOptions_.timeout = requestTimeout;\n      } // TODO: Create a new event on the PlaylistLoader that signals\n      // that the segments have changed in some way and use that to\n      // update the SegmentLoader instead of doing it twice here and\n      // on `loadedplaylist`\n\n\n      _this3.mainSegmentLoader_.playlist(media, _this3.requestOptions_);\n\n      _this3.mainSegmentLoader_.load();\n\n      _this3.tech_.trigger({\n        type: 'mediachange',\n        bubbles: true\n      });\n    });\n    this.masterPlaylistLoader_.on('playlistunchanged', function () {\n      var updatedPlaylist = _this3.masterPlaylistLoader_.media(); // ignore unchanged playlists that have already been\n      // excluded for not-changing. We likely just have a really slowly updating\n      // playlist.\n\n\n      if (updatedPlaylist.lastExcludeReason_ === 'playlist-unchanged') {\n        return;\n      }\n\n      var playlistOutdated = _this3.stuckAtPlaylistEnd_(updatedPlaylist);\n\n      if (playlistOutdated) {\n        // Playlist has stopped updating and we're stuck at its end. Try to\n        // blacklist it and switch to another playlist in the hope that that\n        // one is updating (and give the player a chance to re-adjust to the\n        // safe live point).\n        _this3.blacklistCurrentPlaylist({\n          message: 'Playlist no longer updating.',\n          reason: 'playlist-unchanged'\n        }); // useful for monitoring QoS\n\n\n        _this3.tech_.trigger('playliststuck');\n      }\n    });\n    this.masterPlaylistLoader_.on('renditiondisabled', function () {\n      _this3.tech_.trigger({\n        type: 'usage',\n        name: 'vhs-rendition-disabled'\n      });\n\n      _this3.tech_.trigger({\n        type: 'usage',\n        name: 'hls-rendition-disabled'\n      });\n    });\n    this.masterPlaylistLoader_.on('renditionenabled', function () {\n      _this3.tech_.trigger({\n        type: 'usage',\n        name: 'vhs-rendition-enabled'\n      });\n\n      _this3.tech_.trigger({\n        type: 'usage',\n        name: 'hls-rendition-enabled'\n      });\n    });\n  }\n  /**\n   * Given an updated media playlist (whether it was loaded for the first time, or\n   * refreshed for live playlists), update any relevant properties and state to reflect\n   * changes in the media that should be accounted for (e.g., cues and duration).\n   *\n   * @param {Object} updatedPlaylist the updated media playlist object\n   *\n   * @private\n   */\n  ;\n\n  _proto.handleUpdatedMediaPlaylist = function handleUpdatedMediaPlaylist(updatedPlaylist) {\n    if (this.useCueTags_) {\n      this.updateAdCues_(updatedPlaylist);\n    } // TODO: Create a new event on the PlaylistLoader that signals\n    // that the segments have changed in some way and use that to\n    // update the SegmentLoader instead of doing it twice here and\n    // on `mediachange`\n\n\n    this.mainSegmentLoader_.playlist(updatedPlaylist, this.requestOptions_);\n    this.updateDuration(!updatedPlaylist.endList); // If the player isn't paused, ensure that the segment loader is running,\n    // as it is possible that it was temporarily stopped while waiting for\n    // a playlist (e.g., in case the playlist errored and we re-requested it).\n\n    if (!this.tech_.paused()) {\n      this.mainSegmentLoader_.load();\n\n      if (this.audioSegmentLoader_) {\n        this.audioSegmentLoader_.load();\n      }\n    }\n  }\n  /**\n   * A helper function for triggerring presence usage events once per source\n   *\n   * @private\n   */\n  ;\n\n  _proto.triggerPresenceUsage_ = function triggerPresenceUsage_(master, media) {\n    var mediaGroups = master.mediaGroups || {};\n    var defaultDemuxed = true;\n    var audioGroupKeys = Object.keys(mediaGroups.AUDIO);\n\n    for (var mediaGroup in mediaGroups.AUDIO) {\n      for (var label in mediaGroups.AUDIO[mediaGroup]) {\n        var properties = mediaGroups.AUDIO[mediaGroup][label];\n\n        if (!properties.uri) {\n          defaultDemuxed = false;\n        }\n      }\n    }\n\n    if (defaultDemuxed) {\n      this.tech_.trigger({\n        type: 'usage',\n        name: 'vhs-demuxed'\n      });\n      this.tech_.trigger({\n        type: 'usage',\n        name: 'hls-demuxed'\n      });\n    }\n\n    if (Object.keys(mediaGroups.SUBTITLES).length) {\n      this.tech_.trigger({\n        type: 'usage',\n        name: 'vhs-webvtt'\n      });\n      this.tech_.trigger({\n        type: 'usage',\n        name: 'hls-webvtt'\n      });\n    }\n\n    if (Vhs$1.Playlist.isAes(media)) {\n      this.tech_.trigger({\n        type: 'usage',\n        name: 'vhs-aes'\n      });\n      this.tech_.trigger({\n        type: 'usage',\n        name: 'hls-aes'\n      });\n    }\n\n    if (audioGroupKeys.length && Object.keys(mediaGroups.AUDIO[audioGroupKeys[0]]).length > 1) {\n      this.tech_.trigger({\n        type: 'usage',\n        name: 'vhs-alternate-audio'\n      });\n      this.tech_.trigger({\n        type: 'usage',\n        name: 'hls-alternate-audio'\n      });\n    }\n\n    if (this.useCueTags_) {\n      this.tech_.trigger({\n        type: 'usage',\n        name: 'vhs-playlist-cue-tags'\n      });\n      this.tech_.trigger({\n        type: 'usage',\n        name: 'hls-playlist-cue-tags'\n      });\n    }\n  };\n\n  _proto.shouldSwitchToMedia_ = function shouldSwitchToMedia_(nextPlaylist) {\n    var currentPlaylist = this.masterPlaylistLoader_.media();\n    var buffered = this.tech_.buffered();\n    var forwardBuffer = buffered.length ? buffered.end(buffered.length - 1) - this.tech_.currentTime() : 0;\n    var bufferLowWaterLine = this.bufferLowWaterLine();\n    var bufferHighWaterLine = this.bufferHighWaterLine();\n    return shouldSwitchToMedia({\n      currentPlaylist: currentPlaylist,\n      nextPlaylist: nextPlaylist,\n      forwardBuffer: forwardBuffer,\n      bufferLowWaterLine: bufferLowWaterLine,\n      bufferHighWaterLine: bufferHighWaterLine,\n      duration: this.duration(),\n      experimentalBufferBasedABR: this.experimentalBufferBasedABR,\n      log: this.logger_\n    });\n  }\n  /**\n   * Register event handlers on the segment loaders. A helper function\n   * for construction time.\n   *\n   * @private\n   */\n  ;\n\n  _proto.setupSegmentLoaderListeners_ = function setupSegmentLoaderListeners_() {\n    var _this4 = this;\n\n    if (!this.experimentalBufferBasedABR) {\n      this.mainSegmentLoader_.on('bandwidthupdate', function () {\n        var nextPlaylist = _this4.selectPlaylist();\n\n        if (_this4.shouldSwitchToMedia_(nextPlaylist)) {\n          _this4.switchMedia_(nextPlaylist, 'bandwidthupdate');\n        }\n\n        _this4.tech_.trigger('bandwidthupdate');\n      });\n      this.mainSegmentLoader_.on('progress', function () {\n        _this4.trigger('progress');\n      });\n    }\n\n    this.mainSegmentLoader_.on('error', function () {\n      _this4.blacklistCurrentPlaylist(_this4.mainSegmentLoader_.error());\n    });\n    this.mainSegmentLoader_.on('appenderror', function () {\n      _this4.error = _this4.mainSegmentLoader_.error_;\n\n      _this4.trigger('error');\n    });\n    this.mainSegmentLoader_.on('syncinfoupdate', function () {\n      _this4.onSyncInfoUpdate_();\n    });\n    this.mainSegmentLoader_.on('timestampoffset', function () {\n      _this4.tech_.trigger({\n        type: 'usage',\n        name: 'vhs-timestamp-offset'\n      });\n\n      _this4.tech_.trigger({\n        type: 'usage',\n        name: 'hls-timestamp-offset'\n      });\n    });\n    this.audioSegmentLoader_.on('syncinfoupdate', function () {\n      _this4.onSyncInfoUpdate_();\n    });\n    this.audioSegmentLoader_.on('appenderror', function () {\n      _this4.error = _this4.audioSegmentLoader_.error_;\n\n      _this4.trigger('error');\n    });\n    this.mainSegmentLoader_.on('ended', function () {\n      _this4.logger_('main segment loader ended');\n\n      _this4.onEndOfStream();\n    });\n    this.mainSegmentLoader_.on('earlyabort', function (event) {\n      // never try to early abort with the new ABR algorithm\n      if (_this4.experimentalBufferBasedABR) {\n        return;\n      }\n\n      _this4.delegateLoaders_('all', ['abort']);\n\n      _this4.blacklistCurrentPlaylist({\n        message: 'Aborted early because there isn\\'t enough bandwidth to complete the ' + 'request without rebuffering.'\n      }, ABORT_EARLY_BLACKLIST_SECONDS);\n    });\n\n    var updateCodecs = function updateCodecs() {\n      if (!_this4.sourceUpdater_.hasCreatedSourceBuffers()) {\n        return _this4.tryToCreateSourceBuffers_();\n      }\n\n      var codecs = _this4.getCodecsOrExclude_(); // no codecs means that the playlist was excluded\n\n\n      if (!codecs) {\n        return;\n      }\n\n      _this4.sourceUpdater_.addOrChangeSourceBuffers(codecs);\n    };\n\n    this.mainSegmentLoader_.on('trackinfo', updateCodecs);\n    this.audioSegmentLoader_.on('trackinfo', updateCodecs);\n    this.mainSegmentLoader_.on('fmp4', function () {\n      if (!_this4.triggeredFmp4Usage) {\n        _this4.tech_.trigger({\n          type: 'usage',\n          name: 'vhs-fmp4'\n        });\n\n        _this4.tech_.trigger({\n          type: 'usage',\n          name: 'hls-fmp4'\n        });\n\n        _this4.triggeredFmp4Usage = true;\n      }\n    });\n    this.audioSegmentLoader_.on('fmp4', function () {\n      if (!_this4.triggeredFmp4Usage) {\n        _this4.tech_.trigger({\n          type: 'usage',\n          name: 'vhs-fmp4'\n        });\n\n        _this4.tech_.trigger({\n          type: 'usage',\n          name: 'hls-fmp4'\n        });\n\n        _this4.triggeredFmp4Usage = true;\n      }\n    });\n    this.audioSegmentLoader_.on('ended', function () {\n      _this4.logger_('audioSegmentLoader ended');\n\n      _this4.onEndOfStream();\n    });\n  };\n\n  _proto.mediaSecondsLoaded_ = function mediaSecondsLoaded_() {\n    return Math.max(this.audioSegmentLoader_.mediaSecondsLoaded + this.mainSegmentLoader_.mediaSecondsLoaded);\n  }\n  /**\n   * Call load on our SegmentLoaders\n   */\n  ;\n\n  _proto.load = function load() {\n    this.mainSegmentLoader_.load();\n\n    if (this.mediaTypes_.AUDIO.activePlaylistLoader) {\n      this.audioSegmentLoader_.load();\n    }\n\n    if (this.mediaTypes_.SUBTITLES.activePlaylistLoader) {\n      this.subtitleSegmentLoader_.load();\n    }\n  }\n  /**\n   * Re-tune playback quality level for the current player\n   * conditions without performing destructive actions, like\n   * removing already buffered content\n   *\n   * @private\n   * @deprecated\n   */\n  ;\n\n  _proto.smoothQualityChange_ = function smoothQualityChange_(media) {\n    if (media === void 0) {\n      media = this.selectPlaylist();\n    }\n\n    this.fastQualityChange_(media);\n  }\n  /**\n   * Re-tune playback quality level for the current player\n   * conditions. This method will perform destructive actions like removing\n   * already buffered content in order to readjust the currently active\n   * playlist quickly. This is good for manual quality changes\n   *\n   * @private\n   */\n  ;\n\n  _proto.fastQualityChange_ = function fastQualityChange_(media) {\n    var _this5 = this;\n\n    if (media === void 0) {\n      media = this.selectPlaylist();\n    }\n\n    if (media === this.masterPlaylistLoader_.media()) {\n      this.logger_('skipping fastQualityChange because new media is same as old');\n      return;\n    }\n\n    this.switchMedia_(media, 'fast-quality'); // Delete all buffered data to allow an immediate quality switch, then seek to give\n    // the browser a kick to remove any cached frames from the previous rendtion (.04 seconds\n    // ahead is roughly the minimum that will accomplish this across a variety of content\n    // in IE and Edge, but seeking in place is sufficient on all other browsers)\n    // Edge/IE bug: https://developer.microsoft.com/en-us/microsoft-edge/platform/issues/14600375/\n    // Chrome bug: https://bugs.chromium.org/p/chromium/issues/detail?id=651904\n\n    this.mainSegmentLoader_.resetEverything(function () {\n      // Since this is not a typical seek, we avoid the seekTo method which can cause segments\n      // from the previously enabled rendition to load before the new playlist has finished loading\n      if (videojs.browser.IE_VERSION || videojs.browser.IS_EDGE) {\n        _this5.tech_.setCurrentTime(_this5.tech_.currentTime() + 0.04);\n      } else {\n        _this5.tech_.setCurrentTime(_this5.tech_.currentTime());\n      }\n    }); // don't need to reset audio as it is reset when media changes\n  }\n  /**\n   * Begin playback.\n   */\n  ;\n\n  _proto.play = function play() {\n    if (this.setupFirstPlay()) {\n      return;\n    }\n\n    if (this.tech_.ended()) {\n      this.tech_.setCurrentTime(0);\n    }\n\n    if (this.hasPlayed_) {\n      this.load();\n    }\n\n    var seekable = this.tech_.seekable(); // if the viewer has paused and we fell out of the live window,\n    // seek forward to the live point\n\n    if (this.tech_.duration() === Infinity) {\n      if (this.tech_.currentTime() < seekable.start(0)) {\n        return this.tech_.setCurrentTime(seekable.end(seekable.length - 1));\n      }\n    }\n  }\n  /**\n   * Seek to the latest media position if this is a live video and the\n   * player and video are loaded and initialized.\n   */\n  ;\n\n  _proto.setupFirstPlay = function setupFirstPlay() {\n    var _this6 = this;\n\n    var media = this.masterPlaylistLoader_.media(); // Check that everything is ready to begin buffering for the first call to play\n    //  If 1) there is no active media\n    //     2) the player is paused\n    //     3) the first play has already been setup\n    // then exit early\n\n    if (!media || this.tech_.paused() || this.hasPlayed_) {\n      return false;\n    } // when the video is a live stream\n\n\n    if (!media.endList) {\n      var seekable = this.seekable();\n\n      if (!seekable.length) {\n        // without a seekable range, the player cannot seek to begin buffering at the live\n        // point\n        return false;\n      }\n\n      if (videojs.browser.IE_VERSION && this.tech_.readyState() === 0) {\n        // IE11 throws an InvalidStateError if you try to set currentTime while the\n        // readyState is 0, so it must be delayed until the tech fires loadedmetadata.\n        this.tech_.one('loadedmetadata', function () {\n          _this6.trigger('firstplay');\n\n          _this6.tech_.setCurrentTime(seekable.end(0));\n\n          _this6.hasPlayed_ = true;\n        });\n        return false;\n      } // trigger firstplay to inform the source handler to ignore the next seek event\n\n\n      this.trigger('firstplay'); // seek to the live point\n\n      this.tech_.setCurrentTime(seekable.end(0));\n    }\n\n    this.hasPlayed_ = true; // we can begin loading now that everything is ready\n\n    this.load();\n    return true;\n  }\n  /**\n   * handle the sourceopen event on the MediaSource\n   *\n   * @private\n   */\n  ;\n\n  _proto.handleSourceOpen_ = function handleSourceOpen_() {\n    // Only attempt to create the source buffer if none already exist.\n    // handleSourceOpen is also called when we are \"re-opening\" a source buffer\n    // after `endOfStream` has been called (in response to a seek for instance)\n    this.tryToCreateSourceBuffers_(); // if autoplay is enabled, begin playback. This is duplicative of\n    // code in video.js but is required because play() must be invoked\n    // *after* the media source has opened.\n\n    if (this.tech_.autoplay()) {\n      var playPromise = this.tech_.play(); // Catch/silence error when a pause interrupts a play request\n      // on browsers which return a promise\n\n      if (typeof playPromise !== 'undefined' && typeof playPromise.then === 'function') {\n        playPromise.then(null, function (e) {});\n      }\n    }\n\n    this.trigger('sourceopen');\n  }\n  /**\n   * handle the sourceended event on the MediaSource\n   *\n   * @private\n   */\n  ;\n\n  _proto.handleSourceEnded_ = function handleSourceEnded_() {\n    if (!this.inbandTextTracks_.metadataTrack_) {\n      return;\n    }\n\n    var cues = this.inbandTextTracks_.metadataTrack_.cues;\n\n    if (!cues || !cues.length) {\n      return;\n    }\n\n    var duration = this.duration();\n    cues[cues.length - 1].endTime = isNaN(duration) || Math.abs(duration) === Infinity ? Number.MAX_VALUE : duration;\n  }\n  /**\n   * handle the durationchange event on the MediaSource\n   *\n   * @private\n   */\n  ;\n\n  _proto.handleDurationChange_ = function handleDurationChange_() {\n    this.tech_.trigger('durationchange');\n  }\n  /**\n   * Calls endOfStream on the media source when all active stream types have called\n   * endOfStream\n   *\n   * @param {string} streamType\n   *        Stream type of the segment loader that called endOfStream\n   * @private\n   */\n  ;\n\n  _proto.onEndOfStream = function onEndOfStream() {\n    var isEndOfStream = this.mainSegmentLoader_.ended_;\n\n    if (this.mediaTypes_.AUDIO.activePlaylistLoader) {\n      var mainMediaInfo = this.mainSegmentLoader_.getCurrentMediaInfo_(); // if the audio playlist loader exists, then alternate audio is active\n\n      if (!mainMediaInfo || mainMediaInfo.hasVideo) {\n        // if we do not know if the main segment loader contains video yet or if we\n        // definitively know the main segment loader contains video, then we need to wait\n        // for both main and audio segment loaders to call endOfStream\n        isEndOfStream = isEndOfStream && this.audioSegmentLoader_.ended_;\n      } else {\n        // otherwise just rely on the audio loader\n        isEndOfStream = this.audioSegmentLoader_.ended_;\n      }\n    }\n\n    if (!isEndOfStream) {\n      return;\n    }\n\n    this.stopABRTimer_();\n    this.sourceUpdater_.endOfStream();\n  }\n  /**\n   * Check if a playlist has stopped being updated\n   *\n   * @param {Object} playlist the media playlist object\n   * @return {boolean} whether the playlist has stopped being updated or not\n   */\n  ;\n\n  _proto.stuckAtPlaylistEnd_ = function stuckAtPlaylistEnd_(playlist) {\n    var seekable = this.seekable();\n\n    if (!seekable.length) {\n      // playlist doesn't have enough information to determine whether we are stuck\n      return false;\n    }\n\n    var expired = this.syncController_.getExpiredTime(playlist, this.duration());\n\n    if (expired === null) {\n      return false;\n    } // does not use the safe live end to calculate playlist end, since we\n    // don't want to say we are stuck while there is still content\n\n\n    var absolutePlaylistEnd = Vhs$1.Playlist.playlistEnd(playlist, expired);\n    var currentTime = this.tech_.currentTime();\n    var buffered = this.tech_.buffered();\n\n    if (!buffered.length) {\n      // return true if the playhead reached the absolute end of the playlist\n      return absolutePlaylistEnd - currentTime <= SAFE_TIME_DELTA;\n    }\n\n    var bufferedEnd = buffered.end(buffered.length - 1); // return true if there is too little buffer left and buffer has reached absolute\n    // end of playlist\n\n    return bufferedEnd - currentTime <= SAFE_TIME_DELTA && absolutePlaylistEnd - bufferedEnd <= SAFE_TIME_DELTA;\n  }\n  /**\n   * Blacklists a playlist when an error occurs for a set amount of time\n   * making it unavailable for selection by the rendition selection algorithm\n   * and then forces a new playlist (rendition) selection.\n   *\n   * @param {Object=} error an optional error that may include the playlist\n   * to blacklist\n   * @param {number=} blacklistDuration an optional number of seconds to blacklist the\n   * playlist\n   */\n  ;\n\n  _proto.blacklistCurrentPlaylist = function blacklistCurrentPlaylist(error, blacklistDuration) {\n    if (error === void 0) {\n      error = {};\n    } // If the `error` was generated by the playlist loader, it will contain\n    // the playlist we were trying to load (but failed) and that should be\n    // blacklisted instead of the currently selected playlist which is likely\n    // out-of-date in this scenario\n\n\n    var currentPlaylist = error.playlist || this.masterPlaylistLoader_.media();\n    blacklistDuration = blacklistDuration || error.blacklistDuration || this.blacklistDuration; // If there is no current playlist, then an error occurred while we were\n    // trying to load the master OR while we were disposing of the tech\n\n    if (!currentPlaylist) {\n      this.error = error;\n\n      if (this.mediaSource.readyState !== 'open') {\n        this.trigger('error');\n      } else {\n        this.sourceUpdater_.endOfStream('network');\n      }\n\n      return;\n    }\n\n    currentPlaylist.playlistErrors_++;\n    var playlists = this.masterPlaylistLoader_.master.playlists;\n    var enabledPlaylists = playlists.filter(isEnabled);\n    var isFinalRendition = enabledPlaylists.length === 1 && enabledPlaylists[0] === currentPlaylist; // Don't blacklist the only playlist unless it was blacklisted\n    // forever\n\n    if (playlists.length === 1 && blacklistDuration !== Infinity) {\n      videojs.log.warn(\"Problem encountered with playlist \" + currentPlaylist.id + \". \" + 'Trying again since it is the only playlist.');\n      this.tech_.trigger('retryplaylist'); // if this is a final rendition, we should delay\n\n      return this.masterPlaylistLoader_.load(isFinalRendition);\n    }\n\n    if (isFinalRendition) {\n      // Since we're on the final non-blacklisted playlist, and we're about to blacklist\n      // it, instead of erring the player or retrying this playlist, clear out the current\n      // blacklist. This allows other playlists to be attempted in case any have been\n      // fixed.\n      var reincluded = false;\n      playlists.forEach(function (playlist) {\n        // skip current playlist which is about to be blacklisted\n        if (playlist === currentPlaylist) {\n          return;\n        }\n\n        var excludeUntil = playlist.excludeUntil; // a playlist cannot be reincluded if it wasn't excluded to begin with.\n\n        if (typeof excludeUntil !== 'undefined' && excludeUntil !== Infinity) {\n          reincluded = true;\n          delete playlist.excludeUntil;\n        }\n      });\n\n      if (reincluded) {\n        videojs.log.warn('Removing other playlists from the exclusion list because the last ' + 'rendition is about to be excluded.'); // Technically we are retrying a playlist, in that we are simply retrying a previous\n        // playlist. This is needed for users relying on the retryplaylist event to catch a\n        // case where the player might be stuck and looping through \"dead\" playlists.\n\n        this.tech_.trigger('retryplaylist');\n      }\n    } // Blacklist this playlist\n\n\n    var excludeUntil;\n\n    if (currentPlaylist.playlistErrors_ > this.maxPlaylistRetries) {\n      excludeUntil = Infinity;\n    } else {\n      excludeUntil = Date.now() + blacklistDuration * 1000;\n    }\n\n    currentPlaylist.excludeUntil = excludeUntil;\n\n    if (error.reason) {\n      currentPlaylist.lastExcludeReason_ = error.reason;\n    }\n\n    this.tech_.trigger('blacklistplaylist');\n    this.tech_.trigger({\n      type: 'usage',\n      name: 'vhs-rendition-blacklisted'\n    });\n    this.tech_.trigger({\n      type: 'usage',\n      name: 'hls-rendition-blacklisted'\n    }); // TODO: should we select a new playlist if this blacklist wasn't for the currentPlaylist?\n    // Would be something like media().id !=== currentPlaylist.id and we  would need something\n    // like `pendingMedia` in playlist loaders to check against that too. This will prevent us\n    // from loading a new playlist on any blacklist.\n    // Select a new playlist\n\n    var nextPlaylist = this.selectPlaylist();\n\n    if (!nextPlaylist) {\n      this.error = 'Playback cannot continue. No available working or supported playlists.';\n      this.trigger('error');\n      return;\n    }\n\n    var logFn = error.internal ? this.logger_ : videojs.log.warn;\n    var errorMessage = error.message ? ' ' + error.message : '';\n    logFn((error.internal ? 'Internal problem' : 'Problem') + \" encountered with playlist \" + currentPlaylist.id + \".\" + (errorMessage + \" Switching to playlist \" + nextPlaylist.id + \".\")); // if audio group changed reset audio loaders\n\n    if (nextPlaylist.attributes.AUDIO !== currentPlaylist.attributes.AUDIO) {\n      this.delegateLoaders_('audio', ['abort', 'pause']);\n    } // if subtitle group changed reset subtitle loaders\n\n\n    if (nextPlaylist.attributes.SUBTITLES !== currentPlaylist.attributes.SUBTITLES) {\n      this.delegateLoaders_('subtitle', ['abort', 'pause']);\n    }\n\n    this.delegateLoaders_('main', ['abort', 'pause']);\n    var delayDuration = nextPlaylist.targetDuration / 2 * 1000 || 5 * 1000;\n    var shouldDelay = typeof nextPlaylist.lastRequest === 'number' && Date.now() - nextPlaylist.lastRequest <= delayDuration; // delay if it's a final rendition or if the last refresh is sooner than half targetDuration\n\n    return this.switchMedia_(nextPlaylist, 'exclude', isFinalRendition || shouldDelay);\n  }\n  /**\n   * Pause all segment/playlist loaders\n   */\n  ;\n\n  _proto.pauseLoading = function pauseLoading() {\n    this.delegateLoaders_('all', ['abort', 'pause']);\n    this.stopABRTimer_();\n  }\n  /**\n   * Call a set of functions in order on playlist loaders, segment loaders,\n   * or both types of loaders.\n   *\n   * @param {string} filter\n   *        Filter loaders that should call fnNames using a string. Can be:\n   *        * all - run on all loaders\n   *        * audio - run on all audio loaders\n   *        * subtitle - run on all subtitle loaders\n   *        * main - run on the main/master loaders\n   *\n   * @param {Array|string} fnNames\n   *        A string or array of function names to call.\n   */\n  ;\n\n  _proto.delegateLoaders_ = function delegateLoaders_(filter, fnNames) {\n    var _this7 = this;\n\n    var loaders = [];\n    var dontFilterPlaylist = filter === 'all';\n\n    if (dontFilterPlaylist || filter === 'main') {\n      loaders.push(this.masterPlaylistLoader_);\n    }\n\n    var mediaTypes = [];\n\n    if (dontFilterPlaylist || filter === 'audio') {\n      mediaTypes.push('AUDIO');\n    }\n\n    if (dontFilterPlaylist || filter === 'subtitle') {\n      mediaTypes.push('CLOSED-CAPTIONS');\n      mediaTypes.push('SUBTITLES');\n    }\n\n    mediaTypes.forEach(function (mediaType) {\n      var loader = _this7.mediaTypes_[mediaType] && _this7.mediaTypes_[mediaType].activePlaylistLoader;\n\n      if (loader) {\n        loaders.push(loader);\n      }\n    });\n    ['main', 'audio', 'subtitle'].forEach(function (name) {\n      var loader = _this7[name + \"SegmentLoader_\"];\n\n      if (loader && (filter === name || filter === 'all')) {\n        loaders.push(loader);\n      }\n    });\n    loaders.forEach(function (loader) {\n      return fnNames.forEach(function (fnName) {\n        if (typeof loader[fnName] === 'function') {\n          loader[fnName]();\n        }\n      });\n    });\n  }\n  /**\n   * set the current time on all segment loaders\n   *\n   * @param {TimeRange} currentTime the current time to set\n   * @return {TimeRange} the current time\n   */\n  ;\n\n  _proto.setCurrentTime = function setCurrentTime(currentTime) {\n    var buffered = findRange(this.tech_.buffered(), currentTime);\n\n    if (!(this.masterPlaylistLoader_ && this.masterPlaylistLoader_.media())) {\n      // return immediately if the metadata is not ready yet\n      return 0;\n    } // it's clearly an edge-case but don't thrown an error if asked to\n    // seek within an empty playlist\n\n\n    if (!this.masterPlaylistLoader_.media().segments) {\n      return 0;\n    } // if the seek location is already buffered, continue buffering as usual\n\n\n    if (buffered && buffered.length) {\n      return currentTime;\n    } // cancel outstanding requests so we begin buffering at the new\n    // location\n\n\n    this.mainSegmentLoader_.resetEverything();\n    this.mainSegmentLoader_.abort();\n\n    if (this.mediaTypes_.AUDIO.activePlaylistLoader) {\n      this.audioSegmentLoader_.resetEverything();\n      this.audioSegmentLoader_.abort();\n    }\n\n    if (this.mediaTypes_.SUBTITLES.activePlaylistLoader) {\n      this.subtitleSegmentLoader_.resetEverything();\n      this.subtitleSegmentLoader_.abort();\n    } // start segment loader loading in case they are paused\n\n\n    this.load();\n  }\n  /**\n   * get the current duration\n   *\n   * @return {TimeRange} the duration\n   */\n  ;\n\n  _proto.duration = function duration() {\n    if (!this.masterPlaylistLoader_) {\n      return 0;\n    }\n\n    var media = this.masterPlaylistLoader_.media();\n\n    if (!media) {\n      // no playlists loaded yet, so can't determine a duration\n      return 0;\n    } // Don't rely on the media source for duration in the case of a live playlist since\n    // setting the native MediaSource's duration to infinity ends up with consequences to\n    // seekable behavior. See https://github.com/w3c/media-source/issues/5 for details.\n    //\n    // This is resolved in the spec by https://github.com/w3c/media-source/pull/92,\n    // however, few browsers have support for setLiveSeekableRange()\n    // https://developer.mozilla.org/en-US/docs/Web/API/MediaSource/setLiveSeekableRange\n    //\n    // Until a time when the duration of the media source can be set to infinity, and a\n    // seekable range specified across browsers, just return Infinity.\n\n\n    if (!media.endList) {\n      return Infinity;\n    } // Since this is a VOD video, it is safe to rely on the media source's duration (if\n    // available). If it's not available, fall back to a playlist-calculated estimate.\n\n\n    if (this.mediaSource) {\n      return this.mediaSource.duration;\n    }\n\n    return Vhs$1.Playlist.duration(media);\n  }\n  /**\n   * check the seekable range\n   *\n   * @return {TimeRange} the seekable range\n   */\n  ;\n\n  _proto.seekable = function seekable() {\n    return this.seekable_;\n  };\n\n  _proto.onSyncInfoUpdate_ = function onSyncInfoUpdate_() {\n    var audioSeekable;\n\n    if (!this.masterPlaylistLoader_) {\n      return;\n    }\n\n    var media = this.masterPlaylistLoader_.media();\n\n    if (!media) {\n      return;\n    }\n\n    var expired = this.syncController_.getExpiredTime(media, this.duration());\n\n    if (expired === null) {\n      // not enough information to update seekable\n      return;\n    }\n\n    var master = this.masterPlaylistLoader_.master;\n    var mainSeekable = Vhs$1.Playlist.seekable(media, expired, Vhs$1.Playlist.liveEdgeDelay(master, media));\n\n    if (mainSeekable.length === 0) {\n      return;\n    }\n\n    if (this.mediaTypes_.AUDIO.activePlaylistLoader) {\n      media = this.mediaTypes_.AUDIO.activePlaylistLoader.media();\n      expired = this.syncController_.getExpiredTime(media, this.duration());\n\n      if (expired === null) {\n        return;\n      }\n\n      audioSeekable = Vhs$1.Playlist.seekable(media, expired, Vhs$1.Playlist.liveEdgeDelay(master, media));\n\n      if (audioSeekable.length === 0) {\n        return;\n      }\n    }\n\n    var oldEnd;\n    var oldStart;\n\n    if (this.seekable_ && this.seekable_.length) {\n      oldEnd = this.seekable_.end(0);\n      oldStart = this.seekable_.start(0);\n    }\n\n    if (!audioSeekable) {\n      // seekable has been calculated based on buffering video data so it\n      // can be returned directly\n      this.seekable_ = mainSeekable;\n    } else if (audioSeekable.start(0) > mainSeekable.end(0) || mainSeekable.start(0) > audioSeekable.end(0)) {\n      // seekables are pretty far off, rely on main\n      this.seekable_ = mainSeekable;\n    } else {\n      this.seekable_ = videojs.createTimeRanges([[audioSeekable.start(0) > mainSeekable.start(0) ? audioSeekable.start(0) : mainSeekable.start(0), audioSeekable.end(0) < mainSeekable.end(0) ? audioSeekable.end(0) : mainSeekable.end(0)]]);\n    } // seekable is the same as last time\n\n\n    if (this.seekable_ && this.seekable_.length) {\n      if (this.seekable_.end(0) === oldEnd && this.seekable_.start(0) === oldStart) {\n        return;\n      }\n    }\n\n    this.logger_(\"seekable updated [\" + printableRange(this.seekable_) + \"]\");\n    this.tech_.trigger('seekablechanged');\n  }\n  /**\n   * Update the player duration\n   */\n  ;\n\n  _proto.updateDuration = function updateDuration(isLive) {\n    if (this.updateDuration_) {\n      this.mediaSource.removeEventListener('sourceopen', this.updateDuration_);\n      this.updateDuration_ = null;\n    }\n\n    if (this.mediaSource.readyState !== 'open') {\n      this.updateDuration_ = this.updateDuration.bind(this, isLive);\n      this.mediaSource.addEventListener('sourceopen', this.updateDuration_);\n      return;\n    }\n\n    if (isLive) {\n      var seekable = this.seekable();\n\n      if (!seekable.length) {\n        return;\n      } // Even in the case of a live playlist, the native MediaSource's duration should not\n      // be set to Infinity (even though this would be expected for a live playlist), since\n      // setting the native MediaSource's duration to infinity ends up with consequences to\n      // seekable behavior. See https://github.com/w3c/media-source/issues/5 for details.\n      //\n      // This is resolved in the spec by https://github.com/w3c/media-source/pull/92,\n      // however, few browsers have support for setLiveSeekableRange()\n      // https://developer.mozilla.org/en-US/docs/Web/API/MediaSource/setLiveSeekableRange\n      //\n      // Until a time when the duration of the media source can be set to infinity, and a\n      // seekable range specified across browsers, the duration should be greater than or\n      // equal to the last possible seekable value.\n      // MediaSource duration starts as NaN\n      // It is possible (and probable) that this case will never be reached for many\n      // sources, since the MediaSource reports duration as the highest value without\n      // accounting for timestamp offset. For example, if the timestamp offset is -100 and\n      // we buffered times 0 to 100 with real times of 100 to 200, even though current\n      // time will be between 0 and 100, the native media source may report the duration\n      // as 200. However, since we report duration separate from the media source (as\n      // Infinity), and as long as the native media source duration value is greater than\n      // our reported seekable range, seeks will work as expected. The large number as\n      // duration for live is actually a strategy used by some players to work around the\n      // issue of live seekable ranges cited above.\n\n\n      if (isNaN(this.mediaSource.duration) || this.mediaSource.duration < seekable.end(seekable.length - 1)) {\n        this.sourceUpdater_.setDuration(seekable.end(seekable.length - 1));\n      }\n\n      return;\n    }\n\n    var buffered = this.tech_.buffered();\n    var duration = Vhs$1.Playlist.duration(this.masterPlaylistLoader_.media());\n\n    if (buffered.length > 0) {\n      duration = Math.max(duration, buffered.end(buffered.length - 1));\n    }\n\n    if (this.mediaSource.duration !== duration) {\n      this.sourceUpdater_.setDuration(duration);\n    }\n  }\n  /**\n   * dispose of the MasterPlaylistController and everything\n   * that it controls\n   */\n  ;\n\n  _proto.dispose = function dispose() {\n    var _this8 = this;\n\n    this.trigger('dispose');\n    this.decrypter_.terminate();\n    this.masterPlaylistLoader_.dispose();\n    this.mainSegmentLoader_.dispose();\n\n    if (this.loadOnPlay_) {\n      this.tech_.off('play', this.loadOnPlay_);\n    }\n\n    ['AUDIO', 'SUBTITLES'].forEach(function (type) {\n      var groups = _this8.mediaTypes_[type].groups;\n\n      for (var id in groups) {\n        groups[id].forEach(function (group) {\n          if (group.playlistLoader) {\n            group.playlistLoader.dispose();\n          }\n        });\n      }\n    });\n    this.audioSegmentLoader_.dispose();\n    this.subtitleSegmentLoader_.dispose();\n    this.sourceUpdater_.dispose();\n    this.timelineChangeController_.dispose();\n    this.stopABRTimer_();\n\n    if (this.updateDuration_) {\n      this.mediaSource.removeEventListener('sourceopen', this.updateDuration_);\n    }\n\n    this.mediaSource.removeEventListener('durationchange', this.handleDurationChange_); // load the media source into the player\n\n    this.mediaSource.removeEventListener('sourceopen', this.handleSourceOpen_);\n    this.mediaSource.removeEventListener('sourceended', this.handleSourceEnded_);\n    this.off();\n  }\n  /**\n   * return the master playlist object if we have one\n   *\n   * @return {Object} the master playlist object that we parsed\n   */\n  ;\n\n  _proto.master = function master() {\n    return this.masterPlaylistLoader_.master;\n  }\n  /**\n   * return the currently selected playlist\n   *\n   * @return {Object} the currently selected playlist object that we parsed\n   */\n  ;\n\n  _proto.media = function media() {\n    // playlist loader will not return media if it has not been fully loaded\n    return this.masterPlaylistLoader_.media() || this.initialMedia_;\n  };\n\n  _proto.areMediaTypesKnown_ = function areMediaTypesKnown_() {\n    var usingAudioLoader = !!this.mediaTypes_.AUDIO.activePlaylistLoader;\n    var hasMainMediaInfo = !!this.mainSegmentLoader_.getCurrentMediaInfo_(); // if we are not using an audio loader, then we have audio media info\n    // otherwise check on the segment loader.\n\n    var hasAudioMediaInfo = !usingAudioLoader ? true : !!this.audioSegmentLoader_.getCurrentMediaInfo_(); // one or both loaders has not loaded sufficently to get codecs\n\n    if (!hasMainMediaInfo || !hasAudioMediaInfo) {\n      return false;\n    }\n\n    return true;\n  };\n\n  _proto.getCodecsOrExclude_ = function getCodecsOrExclude_() {\n    var _this9 = this;\n\n    var media = {\n      main: this.mainSegmentLoader_.getCurrentMediaInfo_() || {},\n      audio: this.audioSegmentLoader_.getCurrentMediaInfo_() || {}\n    }; // set \"main\" media equal to video\n\n    media.video = media.main;\n    var playlistCodecs = codecsForPlaylist(this.master(), this.media());\n    var codecs = {};\n    var usingAudioLoader = !!this.mediaTypes_.AUDIO.activePlaylistLoader;\n\n    if (media.main.hasVideo) {\n      codecs.video = playlistCodecs.video || media.main.videoCodec || DEFAULT_VIDEO_CODEC;\n    }\n\n    if (media.main.isMuxed) {\n      codecs.video += \",\" + (playlistCodecs.audio || media.main.audioCodec || DEFAULT_AUDIO_CODEC);\n    }\n\n    if (media.main.hasAudio && !media.main.isMuxed || media.audio.hasAudio || usingAudioLoader) {\n      codecs.audio = playlistCodecs.audio || media.main.audioCodec || media.audio.audioCodec || DEFAULT_AUDIO_CODEC; // set audio isFmp4 so we use the correct \"supports\" function below\n\n      media.audio.isFmp4 = media.main.hasAudio && !media.main.isMuxed ? media.main.isFmp4 : media.audio.isFmp4;\n    } // no codecs, no playback.\n\n\n    if (!codecs.audio && !codecs.video) {\n      this.blacklistCurrentPlaylist({\n        playlist: this.media(),\n        message: 'Could not determine codecs for playlist.',\n        blacklistDuration: Infinity\n      });\n      return;\n    } // fmp4 relies on browser support, while ts relies on muxer support\n\n\n    var supportFunction = function supportFunction(isFmp4, codec) {\n      return isFmp4 ? browserSupportsCodec(codec) : muxerSupportsCodec(codec);\n    };\n\n    var unsupportedCodecs = {};\n    var unsupportedAudio;\n    ['video', 'audio'].forEach(function (type) {\n      if (codecs.hasOwnProperty(type) && !supportFunction(media[type].isFmp4, codecs[type])) {\n        var supporter = media[type].isFmp4 ? 'browser' : 'muxer';\n        unsupportedCodecs[supporter] = unsupportedCodecs[supporter] || [];\n        unsupportedCodecs[supporter].push(codecs[type]);\n\n        if (type === 'audio') {\n          unsupportedAudio = supporter;\n        }\n      }\n    });\n\n    if (usingAudioLoader && unsupportedAudio && this.media().attributes.AUDIO) {\n      var audioGroup = this.media().attributes.AUDIO;\n      this.master().playlists.forEach(function (variant) {\n        var variantAudioGroup = variant.attributes && variant.attributes.AUDIO;\n\n        if (variantAudioGroup === audioGroup && variant !== _this9.media()) {\n          variant.excludeUntil = Infinity;\n        }\n      });\n      this.logger_(\"excluding audio group \" + audioGroup + \" as \" + unsupportedAudio + \" does not support codec(s): \\\"\" + codecs.audio + \"\\\"\");\n    } // if we have any unsupported codecs blacklist this playlist.\n\n\n    if (Object.keys(unsupportedCodecs).length) {\n      var message = Object.keys(unsupportedCodecs).reduce(function (acc, supporter) {\n        if (acc) {\n          acc += ', ';\n        }\n\n        acc += supporter + \" does not support codec(s): \\\"\" + unsupportedCodecs[supporter].join(',') + \"\\\"\";\n        return acc;\n      }, '') + '.';\n      this.blacklistCurrentPlaylist({\n        playlist: this.media(),\n        internal: true,\n        message: message,\n        blacklistDuration: Infinity\n      });\n      return;\n    } // check if codec switching is happening\n\n\n    if (this.sourceUpdater_.hasCreatedSourceBuffers() && !this.sourceUpdater_.canChangeType()) {\n      var switchMessages = [];\n      ['video', 'audio'].forEach(function (type) {\n        var newCodec = (parseCodecs(_this9.sourceUpdater_.codecs[type] || '')[0] || {}).type;\n        var oldCodec = (parseCodecs(codecs[type] || '')[0] || {}).type;\n\n        if (newCodec && oldCodec && newCodec.toLowerCase() !== oldCodec.toLowerCase()) {\n          switchMessages.push(\"\\\"\" + _this9.sourceUpdater_.codecs[type] + \"\\\" -> \\\"\" + codecs[type] + \"\\\"\");\n        }\n      });\n\n      if (switchMessages.length) {\n        this.blacklistCurrentPlaylist({\n          playlist: this.media(),\n          message: \"Codec switching not supported: \" + switchMessages.join(', ') + \".\",\n          blacklistDuration: Infinity,\n          internal: true\n        });\n        return;\n      }\n    } // TODO: when using the muxer shouldn't we just return\n    // the codecs that the muxer outputs?\n\n\n    return codecs;\n  }\n  /**\n   * Create source buffers and exlude any incompatible renditions.\n   *\n   * @private\n   */\n  ;\n\n  _proto.tryToCreateSourceBuffers_ = function tryToCreateSourceBuffers_() {\n    // media source is not ready yet or sourceBuffers are already\n    // created.\n    if (this.mediaSource.readyState !== 'open' || this.sourceUpdater_.hasCreatedSourceBuffers()) {\n      return;\n    }\n\n    if (!this.areMediaTypesKnown_()) {\n      return;\n    }\n\n    var codecs = this.getCodecsOrExclude_(); // no codecs means that the playlist was excluded\n\n    if (!codecs) {\n      return;\n    }\n\n    this.sourceUpdater_.createSourceBuffers(codecs);\n    var codecString = [codecs.video, codecs.audio].filter(Boolean).join(',');\n    this.excludeIncompatibleVariants_(codecString);\n  }\n  /**\n   * Excludes playlists with codecs that are unsupported by the muxer and browser.\n   */\n  ;\n\n  _proto.excludeUnsupportedVariants_ = function excludeUnsupportedVariants_() {\n    var _this10 = this;\n\n    var playlists = this.master().playlists;\n    var ids = []; // TODO: why don't we have a property to loop through all\n    // playlist? Why did we ever mix indexes and keys?\n\n    Object.keys(playlists).forEach(function (key) {\n      var variant = playlists[key]; // check if we already processed this playlist.\n\n      if (ids.indexOf(variant.id) !== -1) {\n        return;\n      }\n\n      ids.push(variant.id);\n      var codecs = codecsForPlaylist(_this10.master, variant);\n      var unsupported = [];\n\n      if (codecs.audio && !muxerSupportsCodec(codecs.audio) && !browserSupportsCodec(codecs.audio)) {\n        unsupported.push(\"audio codec \" + codecs.audio);\n      }\n\n      if (codecs.video && !muxerSupportsCodec(codecs.video) && !browserSupportsCodec(codecs.video)) {\n        unsupported.push(\"video codec \" + codecs.video);\n      }\n\n      if (codecs.text && codecs.text === 'stpp.ttml.im1t') {\n        unsupported.push(\"text codec \" + codecs.text);\n      }\n\n      if (unsupported.length) {\n        variant.excludeUntil = Infinity;\n\n        _this10.logger_(\"excluding \" + variant.id + \" for unsupported: \" + unsupported.join(', '));\n      }\n    });\n  }\n  /**\n   * Blacklist playlists that are known to be codec or\n   * stream-incompatible with the SourceBuffer configuration. For\n   * instance, Media Source Extensions would cause the video element to\n   * stall waiting for video data if you switched from a variant with\n   * video and audio to an audio-only one.\n   *\n   * @param {Object} media a media playlist compatible with the current\n   * set of SourceBuffers. Variants in the current master playlist that\n   * do not appear to have compatible codec or stream configurations\n   * will be excluded from the default playlist selection algorithm\n   * indefinitely.\n   * @private\n   */\n  ;\n\n  _proto.excludeIncompatibleVariants_ = function excludeIncompatibleVariants_(codecString) {\n    var _this11 = this;\n\n    var ids = [];\n    var playlists = this.master().playlists;\n    var codecs = unwrapCodecList(parseCodecs(codecString));\n    var codecCount_ = codecCount(codecs);\n    var videoDetails = codecs.video && parseCodecs(codecs.video)[0] || null;\n    var audioDetails = codecs.audio && parseCodecs(codecs.audio)[0] || null;\n    Object.keys(playlists).forEach(function (key) {\n      var variant = playlists[key]; // check if we already processed this playlist.\n      // or it if it is already excluded forever.\n\n      if (ids.indexOf(variant.id) !== -1 || variant.excludeUntil === Infinity) {\n        return;\n      }\n\n      ids.push(variant.id);\n      var blacklistReasons = []; // get codecs from the playlist for this variant\n\n      var variantCodecs = codecsForPlaylist(_this11.masterPlaylistLoader_.master, variant);\n      var variantCodecCount = codecCount(variantCodecs); // if no codecs are listed, we cannot determine that this\n      // variant is incompatible. Wait for mux.js to probe\n\n      if (!variantCodecs.audio && !variantCodecs.video) {\n        return;\n      } // TODO: we can support this by removing the\n      // old media source and creating a new one, but it will take some work.\n      // The number of streams cannot change\n\n\n      if (variantCodecCount !== codecCount_) {\n        blacklistReasons.push(\"codec count \\\"\" + variantCodecCount + \"\\\" !== \\\"\" + codecCount_ + \"\\\"\");\n      } // only exclude playlists by codec change, if codecs cannot switch\n      // during playback.\n\n\n      if (!_this11.sourceUpdater_.canChangeType()) {\n        var variantVideoDetails = variantCodecs.video && parseCodecs(variantCodecs.video)[0] || null;\n        var variantAudioDetails = variantCodecs.audio && parseCodecs(variantCodecs.audio)[0] || null; // the video codec cannot change\n\n        if (variantVideoDetails && videoDetails && variantVideoDetails.type.toLowerCase() !== videoDetails.type.toLowerCase()) {\n          blacklistReasons.push(\"video codec \\\"\" + variantVideoDetails.type + \"\\\" !== \\\"\" + videoDetails.type + \"\\\"\");\n        } // the audio codec cannot change\n\n\n        if (variantAudioDetails && audioDetails && variantAudioDetails.type.toLowerCase() !== audioDetails.type.toLowerCase()) {\n          blacklistReasons.push(\"audio codec \\\"\" + variantAudioDetails.type + \"\\\" !== \\\"\" + audioDetails.type + \"\\\"\");\n        }\n      }\n\n      if (blacklistReasons.length) {\n        variant.excludeUntil = Infinity;\n\n        _this11.logger_(\"blacklisting \" + variant.id + \": \" + blacklistReasons.join(' && '));\n      }\n    });\n  };\n\n  _proto.updateAdCues_ = function updateAdCues_(media) {\n    var offset = 0;\n    var seekable = this.seekable();\n\n    if (seekable.length) {\n      offset = seekable.start(0);\n    }\n\n    updateAdCues(media, this.cueTagsTrack_, offset);\n  }\n  /**\n   * Calculates the desired forward buffer length based on current time\n   *\n   * @return {number} Desired forward buffer length in seconds\n   */\n  ;\n\n  _proto.goalBufferLength = function goalBufferLength() {\n    var currentTime = this.tech_.currentTime();\n    var initial = Config.GOAL_BUFFER_LENGTH;\n    var rate = Config.GOAL_BUFFER_LENGTH_RATE;\n    var max = Math.max(initial, Config.MAX_GOAL_BUFFER_LENGTH);\n    return Math.min(initial + currentTime * rate, max);\n  }\n  /**\n   * Calculates the desired buffer low water line based on current time\n   *\n   * @return {number} Desired buffer low water line in seconds\n   */\n  ;\n\n  _proto.bufferLowWaterLine = function bufferLowWaterLine() {\n    var currentTime = this.tech_.currentTime();\n    var initial = Config.BUFFER_LOW_WATER_LINE;\n    var rate = Config.BUFFER_LOW_WATER_LINE_RATE;\n    var max = Math.max(initial, Config.MAX_BUFFER_LOW_WATER_LINE);\n    var newMax = Math.max(initial, Config.EXPERIMENTAL_MAX_BUFFER_LOW_WATER_LINE);\n    return Math.min(initial + currentTime * rate, this.experimentalBufferBasedABR ? newMax : max);\n  };\n\n  _proto.bufferHighWaterLine = function bufferHighWaterLine() {\n    return Config.BUFFER_HIGH_WATER_LINE;\n  };\n\n  return MasterPlaylistController;\n}(videojs.EventTarget);\n/**\n * Returns a function that acts as the Enable/disable playlist function.\n *\n * @param {PlaylistLoader} loader - The master playlist loader\n * @param {string} playlistID - id of the playlist\n * @param {Function} changePlaylistFn - A function to be called after a\n * playlist's enabled-state has been changed. Will NOT be called if a\n * playlist's enabled-state is unchanged\n * @param {boolean=} enable - Value to set the playlist enabled-state to\n * or if undefined returns the current enabled-state for the playlist\n * @return {Function} Function for setting/getting enabled\n */\n\n\nvar enableFunction = function enableFunction(loader, playlistID, changePlaylistFn) {\n  return function (enable) {\n    var playlist = loader.master.playlists[playlistID];\n    var incompatible = isIncompatible(playlist);\n    var currentlyEnabled = isEnabled(playlist);\n\n    if (typeof enable === 'undefined') {\n      return currentlyEnabled;\n    }\n\n    if (enable) {\n      delete playlist.disabled;\n    } else {\n      playlist.disabled = true;\n    }\n\n    if (enable !== currentlyEnabled && !incompatible) {\n      // Ensure the outside world knows about our changes\n      changePlaylistFn();\n\n      if (enable) {\n        loader.trigger('renditionenabled');\n      } else {\n        loader.trigger('renditiondisabled');\n      }\n    }\n\n    return enable;\n  };\n};\n/**\n * The representation object encapsulates the publicly visible information\n * in a media playlist along with a setter/getter-type function (enabled)\n * for changing the enabled-state of a particular playlist entry\n *\n * @class Representation\n */\n\n\nvar Representation = function Representation(vhsHandler, playlist, id) {\n  var mpc = vhsHandler.masterPlaylistController_,\n      smoothQualityChange = vhsHandler.options_.smoothQualityChange; // Get a reference to a bound version of the quality change function\n\n  var changeType = smoothQualityChange ? 'smooth' : 'fast';\n  var qualityChangeFunction = mpc[changeType + \"QualityChange_\"].bind(mpc); // some playlist attributes are optional\n\n  if (playlist.attributes) {\n    var resolution = playlist.attributes.RESOLUTION;\n    this.width = resolution && resolution.width;\n    this.height = resolution && resolution.height;\n    this.bandwidth = playlist.attributes.BANDWIDTH;\n  }\n\n  this.codecs = codecsForPlaylist(mpc.master(), playlist);\n  this.playlist = playlist; // The id is simply the ordinality of the media playlist\n  // within the master playlist\n\n  this.id = id; // Partially-apply the enableFunction to create a playlist-\n  // specific variant\n\n  this.enabled = enableFunction(vhsHandler.playlists, playlist.id, qualityChangeFunction);\n};\n/**\n * A mixin function that adds the `representations` api to an instance\n * of the VhsHandler class\n *\n * @param {VhsHandler} vhsHandler - An instance of VhsHandler to add the\n * representation API into\n */\n\n\nvar renditionSelectionMixin = function renditionSelectionMixin(vhsHandler) {\n  // Add a single API-specific function to the VhsHandler instance\n  vhsHandler.representations = function () {\n    var master = vhsHandler.masterPlaylistController_.master();\n    var playlists = isAudioOnly(master) ? vhsHandler.masterPlaylistController_.getAudioTrackPlaylists_() : master.playlists;\n\n    if (!playlists) {\n      return [];\n    }\n\n    return playlists.filter(function (media) {\n      return !isIncompatible(media);\n    }).map(function (e, i) {\n      return new Representation(vhsHandler, e, e.id);\n    });\n  };\n};\n/**\n * @file playback-watcher.js\n *\n * Playback starts, and now my watch begins. It shall not end until my death. I shall\n * take no wait, hold no uncleared timeouts, father no bad seeks. I shall wear no crowns\n * and win no glory. I shall live and die at my post. I am the corrector of the underflow.\n * I am the watcher of gaps. I am the shield that guards the realms of seekable. I pledge\n * my life and honor to the Playback Watch, for this Player and all the Players to come.\n */\n\n\nvar timerCancelEvents = ['seeking', 'seeked', 'pause', 'playing', 'error'];\n/**\n * Returns whether or not the current time should be considered close to buffered content,\n * taking into consideration whether there's enough buffered content for proper playback.\n *\n * @param {Object} options\n *        Options object\n * @param {TimeRange} options.buffered\n *        Current buffer\n * @param {number} options.targetDuration\n *        The active playlist's target duration\n * @param {number} options.currentTime\n *        The current time of the player\n * @return {boolean}\n *         Whether the current time should be considered close to the buffer\n */\n\nvar closeToBufferedContent = function closeToBufferedContent(_ref) {\n  var buffered = _ref.buffered,\n      targetDuration = _ref.targetDuration,\n      currentTime = _ref.currentTime;\n\n  if (!buffered.length) {\n    return false;\n  } // At least two to three segments worth of content should be buffered before there's a\n  // full enough buffer to consider taking any actions.\n\n\n  if (buffered.end(0) - buffered.start(0) < targetDuration * 2) {\n    return false;\n  } // It's possible that, on seek, a remove hasn't completed and the buffered range is\n  // somewhere past the current time. In that event, don't consider the buffered content\n  // close.\n\n\n  if (currentTime > buffered.start(0)) {\n    return false;\n  } // Since target duration generally represents the max (or close to max) duration of a\n  // segment, if the buffer is within a segment of the current time, the gap probably\n  // won't be closed, and current time should be considered close to buffered content.\n\n\n  return buffered.start(0) - currentTime < targetDuration;\n};\n/**\n * @class PlaybackWatcher\n */\n\n\nvar PlaybackWatcher = /*#__PURE__*/function () {\n  /**\n   * Represents an PlaybackWatcher object.\n   *\n   * @class\n   * @param {Object} options an object that includes the tech and settings\n   */\n  function PlaybackWatcher(options) {\n    var _this = this;\n\n    this.masterPlaylistController_ = options.masterPlaylistController;\n    this.tech_ = options.tech;\n    this.seekable = options.seekable;\n    this.allowSeeksWithinUnsafeLiveWindow = options.allowSeeksWithinUnsafeLiveWindow;\n    this.liveRangeSafeTimeDelta = options.liveRangeSafeTimeDelta;\n    this.media = options.media;\n    this.consecutiveUpdates = 0;\n    this.lastRecordedTime = null;\n    this.timer_ = null;\n    this.checkCurrentTimeTimeout_ = null;\n    this.logger_ = logger('PlaybackWatcher');\n    this.logger_('initialize');\n\n    var playHandler = function playHandler() {\n      return _this.monitorCurrentTime_();\n    };\n\n    var canPlayHandler = function canPlayHandler() {\n      return _this.monitorCurrentTime_();\n    };\n\n    var waitingHandler = function waitingHandler() {\n      return _this.techWaiting_();\n    };\n\n    var cancelTimerHandler = function cancelTimerHandler() {\n      return _this.cancelTimer_();\n    };\n\n    var fixesBadSeeksHandler = function fixesBadSeeksHandler() {\n      return _this.fixesBadSeeks_();\n    };\n\n    var mpc = this.masterPlaylistController_;\n    var loaderTypes = ['main', 'subtitle', 'audio'];\n    var loaderChecks = {};\n    loaderTypes.forEach(function (type) {\n      loaderChecks[type] = {\n        reset: function reset() {\n          return _this.resetSegmentDownloads_(type);\n        },\n        updateend: function updateend() {\n          return _this.checkSegmentDownloads_(type);\n        }\n      };\n      mpc[type + \"SegmentLoader_\"].on('appendsdone', loaderChecks[type].updateend); // If a rendition switch happens during a playback stall where the buffer\n      // isn't changing we want to reset. We cannot assume that the new rendition\n      // will also be stalled, until after new appends.\n\n      mpc[type + \"SegmentLoader_\"].on('playlistupdate', loaderChecks[type].reset); // Playback stalls should not be detected right after seeking.\n      // This prevents one segment playlists (single vtt or single segment content)\n      // from being detected as stalling. As the buffer will not change in those cases, since\n      // the buffer is the entire video duration.\n\n      _this.tech_.on(['seeked', 'seeking'], loaderChecks[type].reset);\n    });\n    this.tech_.on('seekablechanged', fixesBadSeeksHandler);\n    this.tech_.on('waiting', waitingHandler);\n    this.tech_.on(timerCancelEvents, cancelTimerHandler);\n    this.tech_.on('canplay', canPlayHandler);\n    /*\n      An edge case exists that results in gaps not being skipped when they exist at the beginning of a stream. This case\n      is surfaced in one of two ways:\n       1)  The `waiting` event is fired before the player has buffered content, making it impossible\n          to find or skip the gap. The `waiting` event is followed by a `play` event. On first play\n          we can check if playback is stalled due to a gap, and skip the gap if necessary.\n      2)  A source with a gap at the beginning of the stream is loaded programatically while the player\n          is in a playing state. To catch this case, it's important that our one-time play listener is setup\n          even if the player is in a playing state\n    */\n\n    this.tech_.one('play', playHandler); // Define the dispose function to clean up our events\n\n    this.dispose = function () {\n      _this.logger_('dispose');\n\n      _this.tech_.off('seekablechanged', fixesBadSeeksHandler);\n\n      _this.tech_.off('waiting', waitingHandler);\n\n      _this.tech_.off(timerCancelEvents, cancelTimerHandler);\n\n      _this.tech_.off('canplay', canPlayHandler);\n\n      _this.tech_.off('play', playHandler);\n\n      loaderTypes.forEach(function (type) {\n        mpc[type + \"SegmentLoader_\"].off('appendsdone', loaderChecks[type].updateend);\n        mpc[type + \"SegmentLoader_\"].off('playlistupdate', loaderChecks[type].reset);\n\n        _this.tech_.off(['seeked', 'seeking'], loaderChecks[type].reset);\n      });\n\n      if (_this.checkCurrentTimeTimeout_) {\n        window.clearTimeout(_this.checkCurrentTimeTimeout_);\n      }\n\n      _this.cancelTimer_();\n    };\n  }\n  /**\n   * Periodically check current time to see if playback stopped\n   *\n   * @private\n   */\n\n\n  var _proto = PlaybackWatcher.prototype;\n\n  _proto.monitorCurrentTime_ = function monitorCurrentTime_() {\n    this.checkCurrentTime_();\n\n    if (this.checkCurrentTimeTimeout_) {\n      window.clearTimeout(this.checkCurrentTimeTimeout_);\n    } // 42 = 24 fps // 250 is what Webkit uses // FF uses 15\n\n\n    this.checkCurrentTimeTimeout_ = window.setTimeout(this.monitorCurrentTime_.bind(this), 250);\n  }\n  /**\n   * Reset stalled download stats for a specific type of loader\n   *\n   * @param {string} type\n   *        The segment loader type to check.\n   *\n   * @listens SegmentLoader#playlistupdate\n   * @listens Tech#seeking\n   * @listens Tech#seeked\n   */\n  ;\n\n  _proto.resetSegmentDownloads_ = function resetSegmentDownloads_(type) {\n    var loader = this.masterPlaylistController_[type + \"SegmentLoader_\"];\n\n    if (this[type + \"StalledDownloads_\"] > 0) {\n      this.logger_(\"resetting possible stalled download count for \" + type + \" loader\");\n    }\n\n    this[type + \"StalledDownloads_\"] = 0;\n    this[type + \"Buffered_\"] = loader.buffered_();\n  }\n  /**\n   * Checks on every segment `appendsdone` to see\n   * if segment appends are making progress. If they are not\n   * and we are still downloading bytes. We blacklist the playlist.\n   *\n   * @param {string} type\n   *        The segment loader type to check.\n   *\n   * @listens SegmentLoader#appendsdone\n   */\n  ;\n\n  _proto.checkSegmentDownloads_ = function checkSegmentDownloads_(type) {\n    var mpc = this.masterPlaylistController_;\n    var loader = mpc[type + \"SegmentLoader_\"];\n    var buffered = loader.buffered_();\n    var isBufferedDifferent = isRangeDifferent(this[type + \"Buffered_\"], buffered);\n    this[type + \"Buffered_\"] = buffered; // if another watcher is going to fix the issue or\n    // the buffered value for this loader changed\n    // appends are working\n\n    if (isBufferedDifferent) {\n      this.resetSegmentDownloads_(type);\n      return;\n    }\n\n    this[type + \"StalledDownloads_\"]++;\n    this.logger_(\"found #\" + this[type + \"StalledDownloads_\"] + \" \" + type + \" appends that did not increase buffer (possible stalled download)\", {\n      playlistId: loader.playlist_ && loader.playlist_.id,\n      buffered: timeRangesToArray(buffered)\n    }); // after 10 possibly stalled appends with no reset, exclude\n\n    if (this[type + \"StalledDownloads_\"] < 10) {\n      return;\n    }\n\n    this.logger_(type + \" loader stalled download exclusion\");\n    this.resetSegmentDownloads_(type);\n    this.tech_.trigger({\n      type: 'usage',\n      name: \"vhs-\" + type + \"-download-exclusion\"\n    });\n\n    if (type === 'subtitle') {\n      return;\n    } // TODO: should we exclude audio tracks rather than main tracks\n    // when type is audio?\n\n\n    mpc.blacklistCurrentPlaylist({\n      message: \"Excessive \" + type + \" segment downloading detected.\"\n    }, Infinity);\n  }\n  /**\n   * The purpose of this function is to emulate the \"waiting\" event on\n   * browsers that do not emit it when they are waiting for more\n   * data to continue playback\n   *\n   * @private\n   */\n  ;\n\n  _proto.checkCurrentTime_ = function checkCurrentTime_() {\n    if (this.tech_.seeking() && this.fixesBadSeeks_()) {\n      this.consecutiveUpdates = 0;\n      this.lastRecordedTime = this.tech_.currentTime();\n      return;\n    }\n\n    if (this.tech_.paused() || this.tech_.seeking()) {\n      return;\n    }\n\n    var currentTime = this.tech_.currentTime();\n    var buffered = this.tech_.buffered();\n\n    if (this.lastRecordedTime === currentTime && (!buffered.length || currentTime + SAFE_TIME_DELTA >= buffered.end(buffered.length - 1))) {\n      // If current time is at the end of the final buffered region, then any playback\n      // stall is most likely caused by buffering in a low bandwidth environment. The tech\n      // should fire a `waiting` event in this scenario, but due to browser and tech\n      // inconsistencies. Calling `techWaiting_` here allows us to simulate\n      // responding to a native `waiting` event when the tech fails to emit one.\n      return this.techWaiting_();\n    }\n\n    if (this.consecutiveUpdates >= 5 && currentTime === this.lastRecordedTime) {\n      this.consecutiveUpdates++;\n      this.waiting_();\n    } else if (currentTime === this.lastRecordedTime) {\n      this.consecutiveUpdates++;\n    } else {\n      this.consecutiveUpdates = 0;\n      this.lastRecordedTime = currentTime;\n    }\n  }\n  /**\n   * Cancels any pending timers and resets the 'timeupdate' mechanism\n   * designed to detect that we are stalled\n   *\n   * @private\n   */\n  ;\n\n  _proto.cancelTimer_ = function cancelTimer_() {\n    this.consecutiveUpdates = 0;\n\n    if (this.timer_) {\n      this.logger_('cancelTimer_');\n      clearTimeout(this.timer_);\n    }\n\n    this.timer_ = null;\n  }\n  /**\n   * Fixes situations where there's a bad seek\n   *\n   * @return {boolean} whether an action was taken to fix the seek\n   * @private\n   */\n  ;\n\n  _proto.fixesBadSeeks_ = function fixesBadSeeks_() {\n    var seeking = this.tech_.seeking();\n\n    if (!seeking) {\n      return false;\n    }\n\n    var seekable = this.seekable();\n    var currentTime = this.tech_.currentTime();\n    var isAfterSeekableRange = this.afterSeekableWindow_(seekable, currentTime, this.media(), this.allowSeeksWithinUnsafeLiveWindow);\n    var seekTo;\n\n    if (isAfterSeekableRange) {\n      var seekableEnd = seekable.end(seekable.length - 1); // sync to live point (if VOD, our seekable was updated and we're simply adjusting)\n\n      seekTo = seekableEnd;\n    }\n\n    if (this.beforeSeekableWindow_(seekable, currentTime)) {\n      var seekableStart = seekable.start(0); // sync to the beginning of the live window\n      // provide a buffer of .1 seconds to handle rounding/imprecise numbers\n\n      seekTo = seekableStart + ( // if the playlist is too short and the seekable range is an exact time (can\n      // happen in live with a 3 segment playlist), then don't use a time delta\n      seekableStart === seekable.end(0) ? 0 : SAFE_TIME_DELTA);\n    }\n\n    if (typeof seekTo !== 'undefined') {\n      this.logger_(\"Trying to seek outside of seekable at time \" + currentTime + \" with \" + (\"seekable range \" + printableRange(seekable) + \". Seeking to \") + (seekTo + \".\"));\n      this.tech_.setCurrentTime(seekTo);\n      return true;\n    }\n\n    var buffered = this.tech_.buffered();\n\n    if (closeToBufferedContent({\n      buffered: buffered,\n      targetDuration: this.media().targetDuration,\n      currentTime: currentTime\n    })) {\n      seekTo = buffered.start(0) + SAFE_TIME_DELTA;\n      this.logger_(\"Buffered region starts (\" + buffered.start(0) + \") \" + (\" just beyond seek point (\" + currentTime + \"). Seeking to \" + seekTo + \".\"));\n      this.tech_.setCurrentTime(seekTo);\n      return true;\n    }\n\n    return false;\n  }\n  /**\n   * Handler for situations when we determine the player is waiting.\n   *\n   * @private\n   */\n  ;\n\n  _proto.waiting_ = function waiting_() {\n    if (this.techWaiting_()) {\n      return;\n    } // All tech waiting checks failed. Use last resort correction\n\n\n    var currentTime = this.tech_.currentTime();\n    var buffered = this.tech_.buffered();\n    var currentRange = findRange(buffered, currentTime); // Sometimes the player can stall for unknown reasons within a contiguous buffered\n    // region with no indication that anything is amiss (seen in Firefox). Seeking to\n    // currentTime is usually enough to kickstart the player. This checks that the player\n    // is currently within a buffered region before attempting a corrective seek.\n    // Chrome does not appear to continue `timeupdate` events after a `waiting` event\n    // until there is ~ 3 seconds of forward buffer available. PlaybackWatcher should also\n    // make sure there is ~3 seconds of forward buffer before taking any corrective action\n    // to avoid triggering an `unknownwaiting` event when the network is slow.\n\n    if (currentRange.length && currentTime + 3 <= currentRange.end(0)) {\n      this.cancelTimer_();\n      this.tech_.setCurrentTime(currentTime);\n      this.logger_(\"Stopped at \" + currentTime + \" while inside a buffered region \" + (\"[\" + currentRange.start(0) + \" -> \" + currentRange.end(0) + \"]. Attempting to resume \") + 'playback by seeking to the current time.'); // unknown waiting corrections may be useful for monitoring QoS\n\n      this.tech_.trigger({\n        type: 'usage',\n        name: 'vhs-unknown-waiting'\n      });\n      this.tech_.trigger({\n        type: 'usage',\n        name: 'hls-unknown-waiting'\n      });\n      return;\n    }\n  }\n  /**\n   * Handler for situations when the tech fires a `waiting` event\n   *\n   * @return {boolean}\n   *         True if an action (or none) was needed to correct the waiting. False if no\n   *         checks passed\n   * @private\n   */\n  ;\n\n  _proto.techWaiting_ = function techWaiting_() {\n    var seekable = this.seekable();\n    var currentTime = this.tech_.currentTime();\n\n    if (this.tech_.seeking() && this.fixesBadSeeks_()) {\n      // Tech is seeking or bad seek fixed, no action needed\n      return true;\n    }\n\n    if (this.tech_.seeking() || this.timer_ !== null) {\n      // Tech is seeking or already waiting on another action, no action needed\n      return true;\n    }\n\n    if (this.beforeSeekableWindow_(seekable, currentTime)) {\n      var livePoint = seekable.end(seekable.length - 1);\n      this.logger_(\"Fell out of live window at time \" + currentTime + \". Seeking to \" + (\"live point (seekable end) \" + livePoint));\n      this.cancelTimer_();\n      this.tech_.setCurrentTime(livePoint); // live window resyncs may be useful for monitoring QoS\n\n      this.tech_.trigger({\n        type: 'usage',\n        name: 'vhs-live-resync'\n      });\n      this.tech_.trigger({\n        type: 'usage',\n        name: 'hls-live-resync'\n      });\n      return true;\n    }\n\n    var sourceUpdater = this.tech_.vhs.masterPlaylistController_.sourceUpdater_;\n    var buffered = this.tech_.buffered();\n    var videoUnderflow = this.videoUnderflow_({\n      audioBuffered: sourceUpdater.audioBuffered(),\n      videoBuffered: sourceUpdater.videoBuffered(),\n      currentTime: currentTime\n    });\n\n    if (videoUnderflow) {\n      // Even though the video underflowed and was stuck in a gap, the audio overplayed\n      // the gap, leading currentTime into a buffered range. Seeking to currentTime\n      // allows the video to catch up to the audio position without losing any audio\n      // (only suffering ~3 seconds of frozen video and a pause in audio playback).\n      this.cancelTimer_();\n      this.tech_.setCurrentTime(currentTime); // video underflow may be useful for monitoring QoS\n\n      this.tech_.trigger({\n        type: 'usage',\n        name: 'vhs-video-underflow'\n      });\n      this.tech_.trigger({\n        type: 'usage',\n        name: 'hls-video-underflow'\n      });\n      return true;\n    }\n\n    var nextRange = findNextRange(buffered, currentTime); // check for gap\n\n    if (nextRange.length > 0) {\n      var difference = nextRange.start(0) - currentTime;\n      this.logger_(\"Stopped at \" + currentTime + \", setting timer for \" + difference + \", seeking \" + (\"to \" + nextRange.start(0)));\n      this.cancelTimer_();\n      this.timer_ = setTimeout(this.skipTheGap_.bind(this), difference * 1000, currentTime);\n      return true;\n    } // All checks failed. Returning false to indicate failure to correct waiting\n\n\n    return false;\n  };\n\n  _proto.afterSeekableWindow_ = function afterSeekableWindow_(seekable, currentTime, playlist, allowSeeksWithinUnsafeLiveWindow) {\n    if (allowSeeksWithinUnsafeLiveWindow === void 0) {\n      allowSeeksWithinUnsafeLiveWindow = false;\n    }\n\n    if (!seekable.length) {\n      // we can't make a solid case if there's no seekable, default to false\n      return false;\n    }\n\n    var allowedEnd = seekable.end(seekable.length - 1) + SAFE_TIME_DELTA;\n    var isLive = !playlist.endList;\n\n    if (isLive && allowSeeksWithinUnsafeLiveWindow) {\n      allowedEnd = seekable.end(seekable.length - 1) + playlist.targetDuration * 3;\n    }\n\n    if (currentTime > allowedEnd) {\n      return true;\n    }\n\n    return false;\n  };\n\n  _proto.beforeSeekableWindow_ = function beforeSeekableWindow_(seekable, currentTime) {\n    if (seekable.length && // can't fall before 0 and 0 seekable start identifies VOD stream\n    seekable.start(0) > 0 && currentTime < seekable.start(0) - this.liveRangeSafeTimeDelta) {\n      return true;\n    }\n\n    return false;\n  };\n\n  _proto.videoUnderflow_ = function videoUnderflow_(_ref2) {\n    var videoBuffered = _ref2.videoBuffered,\n        audioBuffered = _ref2.audioBuffered,\n        currentTime = _ref2.currentTime; // audio only content will not have video underflow :)\n\n    if (!videoBuffered) {\n      return;\n    }\n\n    var gap; // find a gap in demuxed content.\n\n    if (videoBuffered.length && audioBuffered.length) {\n      // in Chrome audio will continue to play for ~3s when we run out of video\n      // so we have to check that the video buffer did have some buffer in the\n      // past.\n      var lastVideoRange = findRange(videoBuffered, currentTime - 3);\n      var videoRange = findRange(videoBuffered, currentTime);\n      var audioRange = findRange(audioBuffered, currentTime);\n\n      if (audioRange.length && !videoRange.length && lastVideoRange.length) {\n        gap = {\n          start: lastVideoRange.end(0),\n          end: audioRange.end(0)\n        };\n      } // find a gap in muxed content.\n\n    } else {\n      var nextRange = findNextRange(videoBuffered, currentTime); // Even if there is no available next range, there is still a possibility we are\n      // stuck in a gap due to video underflow.\n\n      if (!nextRange.length) {\n        gap = this.gapFromVideoUnderflow_(videoBuffered, currentTime);\n      }\n    }\n\n    if (gap) {\n      this.logger_(\"Encountered a gap in video from \" + gap.start + \" to \" + gap.end + \". \" + (\"Seeking to current time \" + currentTime));\n      return true;\n    }\n\n    return false;\n  }\n  /**\n   * Timer callback. If playback still has not proceeded, then we seek\n   * to the start of the next buffered region.\n   *\n   * @private\n   */\n  ;\n\n  _proto.skipTheGap_ = function skipTheGap_(scheduledCurrentTime) {\n    var buffered = this.tech_.buffered();\n    var currentTime = this.tech_.currentTime();\n    var nextRange = findNextRange(buffered, currentTime);\n    this.cancelTimer_();\n\n    if (nextRange.length === 0 || currentTime !== scheduledCurrentTime) {\n      return;\n    }\n\n    this.logger_('skipTheGap_:', 'currentTime:', currentTime, 'scheduled currentTime:', scheduledCurrentTime, 'nextRange start:', nextRange.start(0)); // only seek if we still have not played\n\n    this.tech_.setCurrentTime(nextRange.start(0) + TIME_FUDGE_FACTOR);\n    this.tech_.trigger({\n      type: 'usage',\n      name: 'vhs-gap-skip'\n    });\n    this.tech_.trigger({\n      type: 'usage',\n      name: 'hls-gap-skip'\n    });\n  };\n\n  _proto.gapFromVideoUnderflow_ = function gapFromVideoUnderflow_(buffered, currentTime) {\n    // At least in Chrome, if there is a gap in the video buffer, the audio will continue\n    // playing for ~3 seconds after the video gap starts. This is done to account for\n    // video buffer underflow/underrun (note that this is not done when there is audio\n    // buffer underflow/underrun -- in that case the video will stop as soon as it\n    // encounters the gap, as audio stalls are more noticeable/jarring to a user than\n    // video stalls). The player's time will reflect the playthrough of audio, so the\n    // time will appear as if we are in a buffered region, even if we are stuck in a\n    // \"gap.\"\n    //\n    // Example:\n    // video buffer:   0 => 10.1, 10.2 => 20\n    // audio buffer:   0 => 20\n    // overall buffer: 0 => 10.1, 10.2 => 20\n    // current time: 13\n    //\n    // Chrome's video froze at 10 seconds, where the video buffer encountered the gap,\n    // however, the audio continued playing until it reached ~3 seconds past the gap\n    // (13 seconds), at which point it stops as well. Since current time is past the\n    // gap, findNextRange will return no ranges.\n    //\n    // To check for this issue, we see if there is a gap that starts somewhere within\n    // a 3 second range (3 seconds +/- 1 second) back from our current time.\n    var gaps = findGaps(buffered);\n\n    for (var i = 0; i < gaps.length; i++) {\n      var start = gaps.start(i);\n      var end = gaps.end(i); // gap is starts no more than 4 seconds back\n\n      if (currentTime - start < 4 && currentTime - start > 2) {\n        return {\n          start: start,\n          end: end\n        };\n      }\n    }\n\n    return null;\n  };\n\n  return PlaybackWatcher;\n}();\n\nvar defaultOptions = {\n  errorInterval: 30,\n  getSource: function getSource(next) {\n    var tech = this.tech({\n      IWillNotUseThisInPlugins: true\n    });\n    var sourceObj = tech.currentSource_ || this.currentSource();\n    return next(sourceObj);\n  }\n};\n/**\n * Main entry point for the plugin\n *\n * @param {Player} player a reference to a videojs Player instance\n * @param {Object} [options] an object with plugin options\n * @private\n */\n\nvar initPlugin = function initPlugin(player, options) {\n  var lastCalled = 0;\n  var seekTo = 0;\n  var localOptions = videojs.mergeOptions(defaultOptions, options);\n  player.ready(function () {\n    player.trigger({\n      type: 'usage',\n      name: 'vhs-error-reload-initialized'\n    });\n    player.trigger({\n      type: 'usage',\n      name: 'hls-error-reload-initialized'\n    });\n  });\n  /**\n   * Player modifications to perform that must wait until `loadedmetadata`\n   * has been triggered\n   *\n   * @private\n   */\n\n  var loadedMetadataHandler = function loadedMetadataHandler() {\n    if (seekTo) {\n      player.currentTime(seekTo);\n    }\n  };\n  /**\n   * Set the source on the player element, play, and seek if necessary\n   *\n   * @param {Object} sourceObj An object specifying the source url and mime-type to play\n   * @private\n   */\n\n\n  var setSource = function setSource(sourceObj) {\n    if (sourceObj === null || sourceObj === undefined) {\n      return;\n    }\n\n    seekTo = player.duration() !== Infinity && player.currentTime() || 0;\n    player.one('loadedmetadata', loadedMetadataHandler);\n    player.src(sourceObj);\n    player.trigger({\n      type: 'usage',\n      name: 'vhs-error-reload'\n    });\n    player.trigger({\n      type: 'usage',\n      name: 'hls-error-reload'\n    });\n    player.play();\n  };\n  /**\n   * Attempt to get a source from either the built-in getSource function\n   * or a custom function provided via the options\n   *\n   * @private\n   */\n\n\n  var errorHandler = function errorHandler() {\n    // Do not attempt to reload the source if a source-reload occurred before\n    // 'errorInterval' time has elapsed since the last source-reload\n    if (Date.now() - lastCalled < localOptions.errorInterval * 1000) {\n      player.trigger({\n        type: 'usage',\n        name: 'vhs-error-reload-canceled'\n      });\n      player.trigger({\n        type: 'usage',\n        name: 'hls-error-reload-canceled'\n      });\n      return;\n    }\n\n    if (!localOptions.getSource || typeof localOptions.getSource !== 'function') {\n      videojs.log.error('ERROR: reloadSourceOnError - The option getSource must be a function!');\n      return;\n    }\n\n    lastCalled = Date.now();\n    return localOptions.getSource.call(player, setSource);\n  };\n  /**\n   * Unbind any event handlers that were bound by the plugin\n   *\n   * @private\n   */\n\n\n  var cleanupEvents = function cleanupEvents() {\n    player.off('loadedmetadata', loadedMetadataHandler);\n    player.off('error', errorHandler);\n    player.off('dispose', cleanupEvents);\n  };\n  /**\n   * Cleanup before re-initializing the plugin\n   *\n   * @param {Object} [newOptions] an object with plugin options\n   * @private\n   */\n\n\n  var reinitPlugin = function reinitPlugin(newOptions) {\n    cleanupEvents();\n    initPlugin(player, newOptions);\n  };\n\n  player.on('error', errorHandler);\n  player.on('dispose', cleanupEvents); // Overwrite the plugin function so that we can correctly cleanup before\n  // initializing the plugin\n\n  player.reloadSourceOnError = reinitPlugin;\n};\n/**\n * Reload the source when an error is detected as long as there\n * wasn't an error previously within the last 30 seconds\n *\n * @param {Object} [options] an object with plugin options\n */\n\n\nvar reloadSourceOnError = function reloadSourceOnError(options) {\n  initPlugin(this, options);\n};\n\nvar version$4 = \"2.10.2\";\nvar version$3 = \"5.13.0\";\nvar version$2 = \"0.19.0\";\nvar version$1 = \"4.7.0\";\nvar version = \"3.1.2\";\nvar Vhs = {\n  PlaylistLoader: PlaylistLoader,\n  Playlist: Playlist,\n  utils: utils,\n  STANDARD_PLAYLIST_SELECTOR: lastBandwidthSelector,\n  INITIAL_PLAYLIST_SELECTOR: lowestBitrateCompatibleVariantSelector,\n  lastBandwidthSelector: lastBandwidthSelector,\n  movingAverageBandwidthSelector: movingAverageBandwidthSelector,\n  comparePlaylistBandwidth: comparePlaylistBandwidth,\n  comparePlaylistResolution: comparePlaylistResolution,\n  xhr: xhrFactory()\n}; // Define getter/setters for config properties\n\nObject.keys(Config).forEach(function (prop) {\n  Object.defineProperty(Vhs, prop, {\n    get: function get() {\n      videojs.log.warn(\"using Vhs.\" + prop + \" is UNSAFE be sure you know what you are doing\");\n      return Config[prop];\n    },\n    set: function set(value) {\n      videojs.log.warn(\"using Vhs.\" + prop + \" is UNSAFE be sure you know what you are doing\");\n\n      if (typeof value !== 'number' || value < 0) {\n        videojs.log.warn(\"value of Vhs.\" + prop + \" must be greater than or equal to 0\");\n        return;\n      }\n\n      Config[prop] = value;\n    }\n  });\n});\nvar LOCAL_STORAGE_KEY = 'videojs-vhs';\n/**\n * Updates the selectedIndex of the QualityLevelList when a mediachange happens in vhs.\n *\n * @param {QualityLevelList} qualityLevels The QualityLevelList to update.\n * @param {PlaylistLoader} playlistLoader PlaylistLoader containing the new media info.\n * @function handleVhsMediaChange\n */\n\nvar handleVhsMediaChange = function handleVhsMediaChange(qualityLevels, playlistLoader) {\n  var newPlaylist = playlistLoader.media();\n  var selectedIndex = -1;\n\n  for (var i = 0; i < qualityLevels.length; i++) {\n    if (qualityLevels[i].id === newPlaylist.id) {\n      selectedIndex = i;\n      break;\n    }\n  }\n\n  qualityLevels.selectedIndex_ = selectedIndex;\n  qualityLevels.trigger({\n    selectedIndex: selectedIndex,\n    type: 'change'\n  });\n};\n/**\n * Adds quality levels to list once playlist metadata is available\n *\n * @param {QualityLevelList} qualityLevels The QualityLevelList to attach events to.\n * @param {Object} vhs Vhs object to listen to for media events.\n * @function handleVhsLoadedMetadata\n */\n\n\nvar handleVhsLoadedMetadata = function handleVhsLoadedMetadata(qualityLevels, vhs) {\n  vhs.representations().forEach(function (rep) {\n    qualityLevels.addQualityLevel(rep);\n  });\n  handleVhsMediaChange(qualityLevels, vhs.playlists);\n}; // HLS is a source handler, not a tech. Make sure attempts to use it\n// as one do not cause exceptions.\n\n\nVhs.canPlaySource = function () {\n  return videojs.log.warn('HLS is no longer a tech. Please remove it from ' + 'your player\\'s techOrder.');\n};\n\nvar emeKeySystems = function emeKeySystems(keySystemOptions, mainPlaylist, audioPlaylist) {\n  if (!keySystemOptions) {\n    return keySystemOptions;\n  }\n\n  var codecs = {};\n\n  if (mainPlaylist && mainPlaylist.attributes && mainPlaylist.attributes.CODECS) {\n    codecs = unwrapCodecList(parseCodecs(mainPlaylist.attributes.CODECS));\n  }\n\n  if (audioPlaylist && audioPlaylist.attributes && audioPlaylist.attributes.CODECS) {\n    codecs.audio = audioPlaylist.attributes.CODECS;\n  }\n\n  var videoContentType = getMimeForCodec(codecs.video);\n  var audioContentType = getMimeForCodec(codecs.audio); // upsert the content types based on the selected playlist\n\n  var keySystemContentTypes = {};\n\n  for (var keySystem in keySystemOptions) {\n    keySystemContentTypes[keySystem] = {};\n\n    if (audioContentType) {\n      keySystemContentTypes[keySystem].audioContentType = audioContentType;\n    }\n\n    if (videoContentType) {\n      keySystemContentTypes[keySystem].videoContentType = videoContentType;\n    } // Default to using the video playlist's PSSH even though they may be different, as\n    // videojs-contrib-eme will only accept one in the options.\n    //\n    // This shouldn't be an issue for most cases as early intialization will handle all\n    // unique PSSH values, and if they aren't, then encrypted events should have the\n    // specific information needed for the unique license.\n\n\n    if (mainPlaylist.contentProtection && mainPlaylist.contentProtection[keySystem] && mainPlaylist.contentProtection[keySystem].pssh) {\n      keySystemContentTypes[keySystem].pssh = mainPlaylist.contentProtection[keySystem].pssh;\n    } // videojs-contrib-eme accepts the option of specifying: 'com.some.cdm': 'url'\n    // so we need to prevent overwriting the URL entirely\n\n\n    if (typeof keySystemOptions[keySystem] === 'string') {\n      keySystemContentTypes[keySystem].url = keySystemOptions[keySystem];\n    }\n  }\n\n  return videojs.mergeOptions(keySystemOptions, keySystemContentTypes);\n};\n/**\n * @typedef {Object} KeySystems\n *\n * keySystems configuration for https://github.com/videojs/videojs-contrib-eme\n * Note: not all options are listed here.\n *\n * @property {Uint8Array} [pssh]\n *           Protection System Specific Header\n */\n\n/**\n * Goes through all the playlists and collects an array of KeySystems options objects\n * containing each playlist's keySystems and their pssh values, if available.\n *\n * @param {Object[]} playlists\n *        The playlists to look through\n * @param {string[]} keySystems\n *        The keySystems to collect pssh values for\n *\n * @return {KeySystems[]}\n *         An array of KeySystems objects containing available key systems and their\n *         pssh values\n */\n\n\nvar getAllPsshKeySystemsOptions = function getAllPsshKeySystemsOptions(playlists, keySystems) {\n  return playlists.reduce(function (keySystemsArr, playlist) {\n    if (!playlist.contentProtection) {\n      return keySystemsArr;\n    }\n\n    var keySystemsOptions = keySystems.reduce(function (keySystemsObj, keySystem) {\n      var keySystemOptions = playlist.contentProtection[keySystem];\n\n      if (keySystemOptions && keySystemOptions.pssh) {\n        keySystemsObj[keySystem] = {\n          pssh: keySystemOptions.pssh\n        };\n      }\n\n      return keySystemsObj;\n    }, {});\n\n    if (Object.keys(keySystemsOptions).length) {\n      keySystemsArr.push(keySystemsOptions);\n    }\n\n    return keySystemsArr;\n  }, []);\n};\n/**\n * Returns a promise that waits for the\n * [eme plugin](https://github.com/videojs/videojs-contrib-eme) to create a key session.\n *\n * Works around https://bugs.chromium.org/p/chromium/issues/detail?id=895449 in non-IE11\n * browsers.\n *\n * As per the above ticket, this is particularly important for Chrome, where, if\n * unencrypted content is appended before encrypted content and the key session has not\n * been created, a MEDIA_ERR_DECODE will be thrown once the encrypted content is reached\n * during playback.\n *\n * @param {Object} player\n *        The player instance\n * @param {Object[]} sourceKeySystems\n *        The key systems options from the player source\n * @param {Object} [audioMedia]\n *        The active audio media playlist (optional)\n * @param {Object[]} mainPlaylists\n *        The playlists found on the master playlist object\n *\n * @return {Object}\n *         Promise that resolves when the key session has been created\n */\n\n\nvar waitForKeySessionCreation = function waitForKeySessionCreation(_ref) {\n  var player = _ref.player,\n      sourceKeySystems = _ref.sourceKeySystems,\n      audioMedia = _ref.audioMedia,\n      mainPlaylists = _ref.mainPlaylists;\n\n  if (!player.eme.initializeMediaKeys) {\n    return Promise.resolve();\n  } // TODO should all audio PSSH values be initialized for DRM?\n  //\n  // All unique video rendition pssh values are initialized for DRM, but here only\n  // the initial audio playlist license is initialized. In theory, an encrypted\n  // event should be fired if the user switches to an alternative audio playlist\n  // where a license is required, but this case hasn't yet been tested. In addition, there\n  // may be many alternate audio playlists unlikely to be used (e.g., multiple different\n  // languages).\n\n\n  var playlists = audioMedia ? mainPlaylists.concat([audioMedia]) : mainPlaylists;\n  var keySystemsOptionsArr = getAllPsshKeySystemsOptions(playlists, Object.keys(sourceKeySystems));\n  var initializationFinishedPromises = [];\n  var keySessionCreatedPromises = []; // Since PSSH values are interpreted as initData, EME will dedupe any duplicates. The\n  // only place where it should not be deduped is for ms-prefixed APIs, but the early\n  // return for IE11 above, and the existence of modern EME APIs in addition to\n  // ms-prefixed APIs on Edge should prevent this from being a concern.\n  // initializeMediaKeys also won't use the webkit-prefixed APIs.\n\n  keySystemsOptionsArr.forEach(function (keySystemsOptions) {\n    keySessionCreatedPromises.push(new Promise(function (resolve, reject) {\n      player.tech_.one('keysessioncreated', resolve);\n    }));\n    initializationFinishedPromises.push(new Promise(function (resolve, reject) {\n      player.eme.initializeMediaKeys({\n        keySystems: keySystemsOptions\n      }, function (err) {\n        if (err) {\n          reject(err);\n          return;\n        }\n\n        resolve();\n      });\n    }));\n  }); // The reasons Promise.race is chosen over Promise.any:\n  //\n  // * Promise.any is only available in Safari 14+.\n  // * None of these promises are expected to reject. If they do reject, it might be\n  //   better here for the race to surface the rejection, rather than mask it by using\n  //   Promise.any.\n\n  return Promise.race([// If a session was previously created, these will all finish resolving without\n  // creating a new session, otherwise it will take until the end of all license\n  // requests, which is why the key session check is used (to make setup much faster).\n  Promise.all(initializationFinishedPromises), // Once a single session is created, the browser knows DRM will be used.\n  Promise.race(keySessionCreatedPromises)]);\n};\n/**\n * If the [eme](https://github.com/videojs/videojs-contrib-eme) plugin is available, and\n * there are keySystems on the source, sets up source options to prepare the source for\n * eme.\n *\n * @param {Object} player\n *        The player instance\n * @param {Object[]} sourceKeySystems\n *        The key systems options from the player source\n * @param {Object} media\n *        The active media playlist\n * @param {Object} [audioMedia]\n *        The active audio media playlist (optional)\n *\n * @return {boolean}\n *         Whether or not options were configured and EME is available\n */\n\n\nvar setupEmeOptions = function setupEmeOptions(_ref2) {\n  var player = _ref2.player,\n      sourceKeySystems = _ref2.sourceKeySystems,\n      media = _ref2.media,\n      audioMedia = _ref2.audioMedia;\n  var sourceOptions = emeKeySystems(sourceKeySystems, media, audioMedia);\n\n  if (!sourceOptions) {\n    return false;\n  }\n\n  player.currentSource().keySystems = sourceOptions; // eme handles the rest of the setup, so if it is missing\n  // do nothing.\n\n  if (sourceOptions && !player.eme) {\n    videojs.log.warn('DRM encrypted source cannot be decrypted without a DRM plugin');\n    return false;\n  }\n\n  return true;\n};\n\nvar getVhsLocalStorage = function getVhsLocalStorage() {\n  if (!window.localStorage) {\n    return null;\n  }\n\n  var storedObject = window.localStorage.getItem(LOCAL_STORAGE_KEY);\n\n  if (!storedObject) {\n    return null;\n  }\n\n  try {\n    return JSON.parse(storedObject);\n  } catch (e) {\n    // someone may have tampered with the value\n    return null;\n  }\n};\n\nvar updateVhsLocalStorage = function updateVhsLocalStorage(options) {\n  if (!window.localStorage) {\n    return false;\n  }\n\n  var objectToStore = getVhsLocalStorage();\n  objectToStore = objectToStore ? videojs.mergeOptions(objectToStore, options) : options;\n\n  try {\n    window.localStorage.setItem(LOCAL_STORAGE_KEY, JSON.stringify(objectToStore));\n  } catch (e) {\n    // Throws if storage is full (e.g., always on iOS 5+ Safari private mode, where\n    // storage is set to 0).\n    // https://developer.mozilla.org/en-US/docs/Web/API/Storage/setItem#Exceptions\n    // No need to perform any operation.\n    return false;\n  }\n\n  return objectToStore;\n};\n/**\n * Parses VHS-supported media types from data URIs. See\n * https://developer.mozilla.org/en-US/docs/Web/HTTP/Basics_of_HTTP/Data_URIs\n * for information on data URIs.\n *\n * @param {string} dataUri\n *        The data URI\n *\n * @return {string|Object}\n *         The parsed object/string, or the original string if no supported media type\n *         was found\n */\n\n\nvar expandDataUri = function expandDataUri(dataUri) {\n  if (dataUri.toLowerCase().indexOf('data:application/vnd.videojs.vhs+json,') === 0) {\n    return JSON.parse(dataUri.substring(dataUri.indexOf(',') + 1));\n  } // no known case for this data URI, return the string as-is\n\n\n  return dataUri;\n};\n/**\n * Whether the browser has built-in HLS support.\n */\n\n\nVhs.supportsNativeHls = function () {\n  if (!document || !document.createElement) {\n    return false;\n  }\n\n  var video = document.createElement('video'); // native HLS is definitely not supported if HTML5 video isn't\n\n  if (!videojs.getTech('Html5').isSupported()) {\n    return false;\n  } // HLS manifests can go by many mime-types\n\n\n  var canPlay = [// Apple santioned\n  'application/vnd.apple.mpegurl', // Apple sanctioned for backwards compatibility\n  'audio/mpegurl', // Very common\n  'audio/x-mpegurl', // Very common\n  'application/x-mpegurl', // Included for completeness\n  'video/x-mpegurl', 'video/mpegurl', 'application/mpegurl'];\n  return canPlay.some(function (canItPlay) {\n    return /maybe|probably/i.test(video.canPlayType(canItPlay));\n  });\n}();\n\nVhs.supportsNativeDash = function () {\n  if (!document || !document.createElement || !videojs.getTech('Html5').isSupported()) {\n    return false;\n  }\n\n  return /maybe|probably/i.test(document.createElement('video').canPlayType('application/dash+xml'));\n}();\n\nVhs.supportsTypeNatively = function (type) {\n  if (type === 'hls') {\n    return Vhs.supportsNativeHls;\n  }\n\n  if (type === 'dash') {\n    return Vhs.supportsNativeDash;\n  }\n\n  return false;\n};\n/**\n * HLS is a source handler, not a tech. Make sure attempts to use it\n * as one do not cause exceptions.\n */\n\n\nVhs.isSupported = function () {\n  return videojs.log.warn('HLS is no longer a tech. Please remove it from ' + 'your player\\'s techOrder.');\n};\n\nvar Component = videojs.getComponent('Component');\n/**\n * The Vhs Handler object, where we orchestrate all of the parts\n * of HLS to interact with video.js\n *\n * @class VhsHandler\n * @extends videojs.Component\n * @param {Object} source the soruce object\n * @param {Tech} tech the parent tech object\n * @param {Object} options optional and required options\n */\n\nvar VhsHandler = /*#__PURE__*/function (_Component) {\n  _inheritsLoose(VhsHandler, _Component);\n\n  function VhsHandler(source, tech, options) {\n    var _this;\n\n    _this = _Component.call(this, tech, videojs.mergeOptions(options.hls, options.vhs)) || this;\n\n    if (options.hls && Object.keys(options.hls).length) {\n      videojs.log.warn('Using hls options is deprecated. Use vhs instead.');\n    } // if a tech level `initialBandwidth` option was passed\n    // use that over the VHS level `bandwidth` option\n\n\n    if (typeof options.initialBandwidth === 'number') {\n      _this.options_.bandwidth = options.initialBandwidth;\n    }\n\n    _this.logger_ = logger('VhsHandler'); // tech.player() is deprecated but setup a reference to HLS for\n    // backwards-compatibility\n\n    if (tech.options_ && tech.options_.playerId) {\n      var _player = videojs(tech.options_.playerId);\n\n      if (!_player.hasOwnProperty('hls')) {\n        Object.defineProperty(_player, 'hls', {\n          get: function get() {\n            videojs.log.warn('player.hls is deprecated. Use player.tech().vhs instead.');\n            tech.trigger({\n              type: 'usage',\n              name: 'hls-player-access'\n            });\n            return _assertThisInitialized(_this);\n          },\n          configurable: true\n        });\n      }\n\n      if (!_player.hasOwnProperty('vhs')) {\n        Object.defineProperty(_player, 'vhs', {\n          get: function get() {\n            videojs.log.warn('player.vhs is deprecated. Use player.tech().vhs instead.');\n            tech.trigger({\n              type: 'usage',\n              name: 'vhs-player-access'\n            });\n            return _assertThisInitialized(_this);\n          },\n          configurable: true\n        });\n      }\n\n      if (!_player.hasOwnProperty('dash')) {\n        Object.defineProperty(_player, 'dash', {\n          get: function get() {\n            videojs.log.warn('player.dash is deprecated. Use player.tech().vhs instead.');\n            return _assertThisInitialized(_this);\n          },\n          configurable: true\n        });\n      }\n\n      _this.player_ = _player;\n    }\n\n    _this.tech_ = tech;\n    _this.source_ = source;\n    _this.stats = {};\n    _this.ignoreNextSeekingEvent_ = false;\n\n    _this.setOptions_();\n\n    if (_this.options_.overrideNative && tech.overrideNativeAudioTracks && tech.overrideNativeVideoTracks) {\n      tech.overrideNativeAudioTracks(true);\n      tech.overrideNativeVideoTracks(true);\n    } else if (_this.options_.overrideNative && (tech.featuresNativeVideoTracks || tech.featuresNativeAudioTracks)) {\n      // overriding native HLS only works if audio tracks have been emulated\n      // error early if we're misconfigured\n      throw new Error('Overriding native HLS requires emulated tracks. ' + 'See https://git.io/vMpjB');\n    } // listen for fullscreenchange events for this player so that we\n    // can adjust our quality selection quickly\n\n\n    _this.on(document, ['fullscreenchange', 'webkitfullscreenchange', 'mozfullscreenchange', 'MSFullscreenChange'], function (event) {\n      var fullscreenElement = document.fullscreenElement || document.webkitFullscreenElement || document.mozFullScreenElement || document.msFullscreenElement;\n\n      if (fullscreenElement && fullscreenElement.contains(_this.tech_.el())) {\n        _this.masterPlaylistController_.fastQualityChange_();\n      } else {\n        // When leaving fullscreen, since the in page pixel dimensions should be smaller\n        // than full screen, see if there should be a rendition switch down to preserve\n        // bandwidth.\n        _this.masterPlaylistController_.checkABR_();\n      }\n    });\n\n    _this.on(_this.tech_, 'seeking', function () {\n      if (this.ignoreNextSeekingEvent_) {\n        this.ignoreNextSeekingEvent_ = false;\n        return;\n      }\n\n      this.setCurrentTime(this.tech_.currentTime());\n    });\n\n    _this.on(_this.tech_, 'error', function () {\n      // verify that the error was real and we are loaded\n      // enough to have mpc loaded.\n      if (this.tech_.error() && this.masterPlaylistController_) {\n        this.masterPlaylistController_.pauseLoading();\n      }\n    });\n\n    _this.on(_this.tech_, 'play', _this.play);\n\n    return _this;\n  }\n\n  var _proto = VhsHandler.prototype;\n\n  _proto.setOptions_ = function setOptions_() {\n    var _this2 = this; // defaults\n\n\n    this.options_.withCredentials = this.options_.withCredentials || false;\n    this.options_.handleManifestRedirects = this.options_.handleManifestRedirects === false ? false : true;\n    this.options_.limitRenditionByPlayerDimensions = this.options_.limitRenditionByPlayerDimensions === false ? false : true;\n    this.options_.useDevicePixelRatio = this.options_.useDevicePixelRatio || false;\n    this.options_.smoothQualityChange = this.options_.smoothQualityChange || false;\n    this.options_.useBandwidthFromLocalStorage = typeof this.source_.useBandwidthFromLocalStorage !== 'undefined' ? this.source_.useBandwidthFromLocalStorage : this.options_.useBandwidthFromLocalStorage || false;\n    this.options_.customTagParsers = this.options_.customTagParsers || [];\n    this.options_.customTagMappers = this.options_.customTagMappers || [];\n    this.options_.cacheEncryptionKeys = this.options_.cacheEncryptionKeys || false;\n\n    if (typeof this.options_.blacklistDuration !== 'number') {\n      this.options_.blacklistDuration = 5 * 60;\n    }\n\n    if (typeof this.options_.bandwidth !== 'number') {\n      if (this.options_.useBandwidthFromLocalStorage) {\n        var storedObject = getVhsLocalStorage();\n\n        if (storedObject && storedObject.bandwidth) {\n          this.options_.bandwidth = storedObject.bandwidth;\n          this.tech_.trigger({\n            type: 'usage',\n            name: 'vhs-bandwidth-from-local-storage'\n          });\n          this.tech_.trigger({\n            type: 'usage',\n            name: 'hls-bandwidth-from-local-storage'\n          });\n        }\n\n        if (storedObject && storedObject.throughput) {\n          this.options_.throughput = storedObject.throughput;\n          this.tech_.trigger({\n            type: 'usage',\n            name: 'vhs-throughput-from-local-storage'\n          });\n          this.tech_.trigger({\n            type: 'usage',\n            name: 'hls-throughput-from-local-storage'\n          });\n        }\n      }\n    } // if bandwidth was not set by options or pulled from local storage, start playlist\n    // selection at a reasonable bandwidth\n\n\n    if (typeof this.options_.bandwidth !== 'number') {\n      this.options_.bandwidth = Config.INITIAL_BANDWIDTH;\n    } // If the bandwidth number is unchanged from the initial setting\n    // then this takes precedence over the enableLowInitialPlaylist option\n\n\n    this.options_.enableLowInitialPlaylist = this.options_.enableLowInitialPlaylist && this.options_.bandwidth === Config.INITIAL_BANDWIDTH; // grab options passed to player.src\n\n    ['withCredentials', 'useDevicePixelRatio', 'limitRenditionByPlayerDimensions', 'bandwidth', 'smoothQualityChange', 'customTagParsers', 'customTagMappers', 'handleManifestRedirects', 'cacheEncryptionKeys', 'playlistSelector', 'initialPlaylistSelector', 'experimentalBufferBasedABR', 'liveRangeSafeTimeDelta', 'experimentalLLHLS', 'experimentalExactManifestTimings', 'experimentalLeastPixelDiffSelector'].forEach(function (option) {\n      if (typeof _this2.source_[option] !== 'undefined') {\n        _this2.options_[option] = _this2.source_[option];\n      }\n    });\n    this.limitRenditionByPlayerDimensions = this.options_.limitRenditionByPlayerDimensions;\n    this.useDevicePixelRatio = this.options_.useDevicePixelRatio;\n  }\n  /**\n   * called when player.src gets called, handle a new source\n   *\n   * @param {Object} src the source object to handle\n   */\n  ;\n\n  _proto.src = function src(_src, type) {\n    var _this3 = this; // do nothing if the src is falsey\n\n\n    if (!_src) {\n      return;\n    }\n\n    this.setOptions_(); // add master playlist controller options\n\n    this.options_.src = expandDataUri(this.source_.src);\n    this.options_.tech = this.tech_;\n    this.options_.externVhs = Vhs;\n    this.options_.sourceType = simpleTypeFromSourceType(type); // Whenever we seek internally, we should update the tech\n\n    this.options_.seekTo = function (time) {\n      _this3.tech_.setCurrentTime(time);\n    };\n\n    if (this.options_.smoothQualityChange) {\n      videojs.log.warn('smoothQualityChange is deprecated and will be removed in the next major version');\n    }\n\n    this.masterPlaylistController_ = new MasterPlaylistController(this.options_);\n    var playbackWatcherOptions = videojs.mergeOptions({\n      liveRangeSafeTimeDelta: SAFE_TIME_DELTA\n    }, this.options_, {\n      seekable: function seekable() {\n        return _this3.seekable();\n      },\n      media: function media() {\n        return _this3.masterPlaylistController_.media();\n      },\n      masterPlaylistController: this.masterPlaylistController_\n    });\n    this.playbackWatcher_ = new PlaybackWatcher(playbackWatcherOptions);\n    this.masterPlaylistController_.on('error', function () {\n      var player = videojs.players[_this3.tech_.options_.playerId];\n      var error = _this3.masterPlaylistController_.error;\n\n      if (typeof error === 'object' && !error.code) {\n        error.code = 3;\n      } else if (typeof error === 'string') {\n        error = {\n          message: error,\n          code: 3\n        };\n      }\n\n      player.error(error);\n    });\n    var defaultSelector = this.options_.experimentalBufferBasedABR ? Vhs.movingAverageBandwidthSelector(0.55) : Vhs.STANDARD_PLAYLIST_SELECTOR; // `this` in selectPlaylist should be the VhsHandler for backwards\n    // compatibility with < v2\n\n    this.masterPlaylistController_.selectPlaylist = this.selectPlaylist ? this.selectPlaylist.bind(this) : defaultSelector.bind(this);\n    this.masterPlaylistController_.selectInitialPlaylist = Vhs.INITIAL_PLAYLIST_SELECTOR.bind(this); // re-expose some internal objects for backwards compatibility with < v2\n\n    this.playlists = this.masterPlaylistController_.masterPlaylistLoader_;\n    this.mediaSource = this.masterPlaylistController_.mediaSource; // Proxy assignment of some properties to the master playlist\n    // controller. Using a custom property for backwards compatibility\n    // with < v2\n\n    Object.defineProperties(this, {\n      selectPlaylist: {\n        get: function get() {\n          return this.masterPlaylistController_.selectPlaylist;\n        },\n        set: function set(selectPlaylist) {\n          this.masterPlaylistController_.selectPlaylist = selectPlaylist.bind(this);\n        }\n      },\n      throughput: {\n        get: function get() {\n          return this.masterPlaylistController_.mainSegmentLoader_.throughput.rate;\n        },\n        set: function set(throughput) {\n          this.masterPlaylistController_.mainSegmentLoader_.throughput.rate = throughput; // By setting `count` to 1 the throughput value becomes the starting value\n          // for the cumulative average\n\n          this.masterPlaylistController_.mainSegmentLoader_.throughput.count = 1;\n        }\n      },\n      bandwidth: {\n        get: function get() {\n          return this.masterPlaylistController_.mainSegmentLoader_.bandwidth;\n        },\n        set: function set(bandwidth) {\n          this.masterPlaylistController_.mainSegmentLoader_.bandwidth = bandwidth; // setting the bandwidth manually resets the throughput counter\n          // `count` is set to zero that current value of `rate` isn't included\n          // in the cumulative average\n\n          this.masterPlaylistController_.mainSegmentLoader_.throughput = {\n            rate: 0,\n            count: 0\n          };\n        }\n      },\n\n      /**\n       * `systemBandwidth` is a combination of two serial processes bit-rates. The first\n       * is the network bitrate provided by `bandwidth` and the second is the bitrate of\n       * the entire process after that - decryption, transmuxing, and appending - provided\n       * by `throughput`.\n       *\n       * Since the two process are serial, the overall system bandwidth is given by:\n       *   sysBandwidth = 1 / (1 / bandwidth + 1 / throughput)\n       */\n      systemBandwidth: {\n        get: function get() {\n          var invBandwidth = 1 / (this.bandwidth || 1);\n          var invThroughput;\n\n          if (this.throughput > 0) {\n            invThroughput = 1 / this.throughput;\n          } else {\n            invThroughput = 0;\n          }\n\n          var systemBitrate = Math.floor(1 / (invBandwidth + invThroughput));\n          return systemBitrate;\n        },\n        set: function set() {\n          videojs.log.error('The \"systemBandwidth\" property is read-only');\n        }\n      }\n    });\n\n    if (this.options_.bandwidth) {\n      this.bandwidth = this.options_.bandwidth;\n    }\n\n    if (this.options_.throughput) {\n      this.throughput = this.options_.throughput;\n    }\n\n    Object.defineProperties(this.stats, {\n      bandwidth: {\n        get: function get() {\n          return _this3.bandwidth || 0;\n        },\n        enumerable: true\n      },\n      mediaRequests: {\n        get: function get() {\n          return _this3.masterPlaylistController_.mediaRequests_() || 0;\n        },\n        enumerable: true\n      },\n      mediaRequestsAborted: {\n        get: function get() {\n          return _this3.masterPlaylistController_.mediaRequestsAborted_() || 0;\n        },\n        enumerable: true\n      },\n      mediaRequestsTimedout: {\n        get: function get() {\n          return _this3.masterPlaylistController_.mediaRequestsTimedout_() || 0;\n        },\n        enumerable: true\n      },\n      mediaRequestsErrored: {\n        get: function get() {\n          return _this3.masterPlaylistController_.mediaRequestsErrored_() || 0;\n        },\n        enumerable: true\n      },\n      mediaTransferDuration: {\n        get: function get() {\n          return _this3.masterPlaylistController_.mediaTransferDuration_() || 0;\n        },\n        enumerable: true\n      },\n      mediaBytesTransferred: {\n        get: function get() {\n          return _this3.masterPlaylistController_.mediaBytesTransferred_() || 0;\n        },\n        enumerable: true\n      },\n      mediaSecondsLoaded: {\n        get: function get() {\n          return _this3.masterPlaylistController_.mediaSecondsLoaded_() || 0;\n        },\n        enumerable: true\n      },\n      mediaAppends: {\n        get: function get() {\n          return _this3.masterPlaylistController_.mediaAppends_() || 0;\n        },\n        enumerable: true\n      },\n      mainAppendsToLoadedData: {\n        get: function get() {\n          return _this3.masterPlaylistController_.mainAppendsToLoadedData_() || 0;\n        },\n        enumerable: true\n      },\n      audioAppendsToLoadedData: {\n        get: function get() {\n          return _this3.masterPlaylistController_.audioAppendsToLoadedData_() || 0;\n        },\n        enumerable: true\n      },\n      appendsToLoadedData: {\n        get: function get() {\n          return _this3.masterPlaylistController_.appendsToLoadedData_() || 0;\n        },\n        enumerable: true\n      },\n      timeToLoadedData: {\n        get: function get() {\n          return _this3.masterPlaylistController_.timeToLoadedData_() || 0;\n        },\n        enumerable: true\n      },\n      buffered: {\n        get: function get() {\n          return timeRangesToArray(_this3.tech_.buffered());\n        },\n        enumerable: true\n      },\n      currentTime: {\n        get: function get() {\n          return _this3.tech_.currentTime();\n        },\n        enumerable: true\n      },\n      currentSource: {\n        get: function get() {\n          return _this3.tech_.currentSource_;\n        },\n        enumerable: true\n      },\n      currentTech: {\n        get: function get() {\n          return _this3.tech_.name_;\n        },\n        enumerable: true\n      },\n      duration: {\n        get: function get() {\n          return _this3.tech_.duration();\n        },\n        enumerable: true\n      },\n      master: {\n        get: function get() {\n          return _this3.playlists.master;\n        },\n        enumerable: true\n      },\n      playerDimensions: {\n        get: function get() {\n          return _this3.tech_.currentDimensions();\n        },\n        enumerable: true\n      },\n      seekable: {\n        get: function get() {\n          return timeRangesToArray(_this3.tech_.seekable());\n        },\n        enumerable: true\n      },\n      timestamp: {\n        get: function get() {\n          return Date.now();\n        },\n        enumerable: true\n      },\n      videoPlaybackQuality: {\n        get: function get() {\n          return _this3.tech_.getVideoPlaybackQuality();\n        },\n        enumerable: true\n      }\n    });\n    this.tech_.one('canplay', this.masterPlaylistController_.setupFirstPlay.bind(this.masterPlaylistController_));\n    this.tech_.on('bandwidthupdate', function () {\n      if (_this3.options_.useBandwidthFromLocalStorage) {\n        updateVhsLocalStorage({\n          bandwidth: _this3.bandwidth,\n          throughput: Math.round(_this3.throughput)\n        });\n      }\n    });\n    this.masterPlaylistController_.on('selectedinitialmedia', function () {\n      // Add the manual rendition mix-in to VhsHandler\n      renditionSelectionMixin(_this3);\n    });\n    this.masterPlaylistController_.sourceUpdater_.on('createdsourcebuffers', function () {\n      _this3.setupEme_();\n    }); // the bandwidth of the primary segment loader is our best\n    // estimate of overall bandwidth\n\n    this.on(this.masterPlaylistController_, 'progress', function () {\n      this.tech_.trigger('progress');\n    }); // In the live case, we need to ignore the very first `seeking` event since\n    // that will be the result of the seek-to-live behavior\n\n    this.on(this.masterPlaylistController_, 'firstplay', function () {\n      this.ignoreNextSeekingEvent_ = true;\n    });\n    this.setupQualityLevels_(); // do nothing if the tech has been disposed already\n    // this can occur if someone sets the src in player.ready(), for instance\n\n    if (!this.tech_.el()) {\n      return;\n    }\n\n    this.mediaSourceUrl_ = window.URL.createObjectURL(this.masterPlaylistController_.mediaSource);\n    this.tech_.src(this.mediaSourceUrl_);\n  }\n  /**\n   * If necessary and EME is available, sets up EME options and waits for key session\n   * creation.\n   *\n   * This function also updates the source updater so taht it can be used, as for some\n   * browsers, EME must be configured before content is appended (if appending unencrypted\n   * content before encrypted content).\n   */\n  ;\n\n  _proto.setupEme_ = function setupEme_() {\n    var _this4 = this;\n\n    var audioPlaylistLoader = this.masterPlaylistController_.mediaTypes_.AUDIO.activePlaylistLoader;\n    var didSetupEmeOptions = setupEmeOptions({\n      player: this.player_,\n      sourceKeySystems: this.source_.keySystems,\n      media: this.playlists.media(),\n      audioMedia: audioPlaylistLoader && audioPlaylistLoader.media()\n    });\n    this.player_.tech_.on('keystatuschange', function (e) {\n      if (e.status === 'output-restricted') {\n        _this4.masterPlaylistController_.blacklistCurrentPlaylist({\n          playlist: _this4.masterPlaylistController_.media(),\n          message: \"DRM keystatus changed to \" + e.status + \". Playlist will fail to play. Check for HDCP content.\",\n          blacklistDuration: Infinity\n        });\n      }\n    }); // In IE11 this is too early to initialize media keys, and IE11 does not support\n    // promises.\n\n    if (videojs.browser.IE_VERSION === 11 || !didSetupEmeOptions) {\n      // If EME options were not set up, we've done all we could to initialize EME.\n      this.masterPlaylistController_.sourceUpdater_.initializedEme();\n      return;\n    }\n\n    this.logger_('waiting for EME key session creation');\n    waitForKeySessionCreation({\n      player: this.player_,\n      sourceKeySystems: this.source_.keySystems,\n      audioMedia: audioPlaylistLoader && audioPlaylistLoader.media(),\n      mainPlaylists: this.playlists.master.playlists\n    }).then(function () {\n      _this4.logger_('created EME key session');\n\n      _this4.masterPlaylistController_.sourceUpdater_.initializedEme();\n    })[\"catch\"](function (err) {\n      _this4.logger_('error while creating EME key session', err);\n\n      _this4.player_.error({\n        message: 'Failed to initialize media keys for EME',\n        code: 3\n      });\n    });\n  }\n  /**\n   * Initializes the quality levels and sets listeners to update them.\n   *\n   * @method setupQualityLevels_\n   * @private\n   */\n  ;\n\n  _proto.setupQualityLevels_ = function setupQualityLevels_() {\n    var _this5 = this;\n\n    var player = videojs.players[this.tech_.options_.playerId]; // if there isn't a player or there isn't a qualityLevels plugin\n    // or qualityLevels_ listeners have already been setup, do nothing.\n\n    if (!player || !player.qualityLevels || this.qualityLevels_) {\n      return;\n    }\n\n    this.qualityLevels_ = player.qualityLevels();\n    this.masterPlaylistController_.on('selectedinitialmedia', function () {\n      handleVhsLoadedMetadata(_this5.qualityLevels_, _this5);\n    });\n    this.playlists.on('mediachange', function () {\n      handleVhsMediaChange(_this5.qualityLevels_, _this5.playlists);\n    });\n  }\n  /**\n   * return the version\n   */\n  ;\n\n  VhsHandler.version = function version$5() {\n    return {\n      '@videojs/http-streaming': version$4,\n      'mux.js': version$3,\n      'mpd-parser': version$2,\n      'm3u8-parser': version$1,\n      'aes-decrypter': version\n    };\n  }\n  /**\n   * return the version\n   */\n  ;\n\n  _proto.version = function version() {\n    return this.constructor.version();\n  };\n\n  _proto.canChangeType = function canChangeType() {\n    return SourceUpdater.canChangeType();\n  }\n  /**\n   * Begin playing the video.\n   */\n  ;\n\n  _proto.play = function play() {\n    this.masterPlaylistController_.play();\n  }\n  /**\n   * a wrapper around the function in MasterPlaylistController\n   */\n  ;\n\n  _proto.setCurrentTime = function setCurrentTime(currentTime) {\n    this.masterPlaylistController_.setCurrentTime(currentTime);\n  }\n  /**\n   * a wrapper around the function in MasterPlaylistController\n   */\n  ;\n\n  _proto.duration = function duration() {\n    return this.masterPlaylistController_.duration();\n  }\n  /**\n   * a wrapper around the function in MasterPlaylistController\n   */\n  ;\n\n  _proto.seekable = function seekable() {\n    return this.masterPlaylistController_.seekable();\n  }\n  /**\n   * Abort all outstanding work and cleanup.\n   */\n  ;\n\n  _proto.dispose = function dispose() {\n    if (this.playbackWatcher_) {\n      this.playbackWatcher_.dispose();\n    }\n\n    if (this.masterPlaylistController_) {\n      this.masterPlaylistController_.dispose();\n    }\n\n    if (this.qualityLevels_) {\n      this.qualityLevels_.dispose();\n    }\n\n    if (this.player_) {\n      delete this.player_.vhs;\n      delete this.player_.dash;\n      delete this.player_.hls;\n    }\n\n    if (this.tech_ && this.tech_.vhs) {\n      delete this.tech_.vhs;\n    } // don't check this.tech_.hls as it will log a deprecated warning\n\n\n    if (this.tech_) {\n      delete this.tech_.hls;\n    }\n\n    if (this.mediaSourceUrl_ && window.URL.revokeObjectURL) {\n      window.URL.revokeObjectURL(this.mediaSourceUrl_);\n      this.mediaSourceUrl_ = null;\n    }\n\n    _Component.prototype.dispose.call(this);\n  };\n\n  _proto.convertToProgramTime = function convertToProgramTime(time, callback) {\n    return getProgramTime({\n      playlist: this.masterPlaylistController_.media(),\n      time: time,\n      callback: callback\n    });\n  } // the player must be playing before calling this\n  ;\n\n  _proto.seekToProgramTime = function seekToProgramTime$1(programTime, callback, pauseAfterSeek, retryCount) {\n    if (pauseAfterSeek === void 0) {\n      pauseAfterSeek = true;\n    }\n\n    if (retryCount === void 0) {\n      retryCount = 2;\n    }\n\n    return seekToProgramTime({\n      programTime: programTime,\n      playlist: this.masterPlaylistController_.media(),\n      retryCount: retryCount,\n      pauseAfterSeek: pauseAfterSeek,\n      seekTo: this.options_.seekTo,\n      tech: this.options_.tech,\n      callback: callback\n    });\n  };\n\n  return VhsHandler;\n}(Component);\n/**\n * The Source Handler object, which informs video.js what additional\n * MIME types are supported and sets up playback. It is registered\n * automatically to the appropriate tech based on the capabilities of\n * the browser it is running in. It is not necessary to use or modify\n * this object in normal usage.\n */\n\n\nvar VhsSourceHandler = {\n  name: 'videojs-http-streaming',\n  VERSION: version$4,\n  canHandleSource: function canHandleSource(srcObj, options) {\n    if (options === void 0) {\n      options = {};\n    }\n\n    var localOptions = videojs.mergeOptions(videojs.options, options);\n    return VhsSourceHandler.canPlayType(srcObj.type, localOptions);\n  },\n  handleSource: function handleSource(source, tech, options) {\n    if (options === void 0) {\n      options = {};\n    }\n\n    var localOptions = videojs.mergeOptions(videojs.options, options);\n    tech.vhs = new VhsHandler(source, tech, localOptions);\n\n    if (!videojs.hasOwnProperty('hls')) {\n      Object.defineProperty(tech, 'hls', {\n        get: function get() {\n          videojs.log.warn('player.tech().hls is deprecated. Use player.tech().vhs instead.');\n          return tech.vhs;\n        },\n        configurable: true\n      });\n    }\n\n    tech.vhs.xhr = xhrFactory();\n    tech.vhs.src(source.src, source.type);\n    return tech.vhs;\n  },\n  canPlayType: function canPlayType(type, options) {\n    if (options === void 0) {\n      options = {};\n    }\n\n    var _videojs$mergeOptions = videojs.mergeOptions(videojs.options, options),\n        _videojs$mergeOptions2 = _videojs$mergeOptions.vhs.overrideNative,\n        overrideNative = _videojs$mergeOptions2 === void 0 ? !videojs.browser.IS_ANY_SAFARI : _videojs$mergeOptions2;\n\n    var supportedType = simpleTypeFromSourceType(type);\n    var canUseMsePlayback = supportedType && (!Vhs.supportsTypeNatively(supportedType) || overrideNative);\n    return canUseMsePlayback ? 'maybe' : '';\n  }\n};\n/**\n * Check to see if the native MediaSource object exists and supports\n * an MP4 container with both H.264 video and AAC-LC audio.\n *\n * @return {boolean} if  native media sources are supported\n */\n\nvar supportsNativeMediaSources = function supportsNativeMediaSources() {\n  return browserSupportsCodec('avc1.4d400d,mp4a.40.2');\n}; // register source handlers with the appropriate techs\n\n\nif (supportsNativeMediaSources()) {\n  videojs.getTech('Html5').registerSourceHandler(VhsSourceHandler, 0);\n}\n\nvideojs.VhsHandler = VhsHandler;\nObject.defineProperty(videojs, 'HlsHandler', {\n  get: function get() {\n    videojs.log.warn('videojs.HlsHandler is deprecated. Use videojs.VhsHandler instead.');\n    return VhsHandler;\n  },\n  configurable: true\n});\nvideojs.VhsSourceHandler = VhsSourceHandler;\nObject.defineProperty(videojs, 'HlsSourceHandler', {\n  get: function get() {\n    videojs.log.warn('videojs.HlsSourceHandler is deprecated. ' + 'Use videojs.VhsSourceHandler instead.');\n    return VhsSourceHandler;\n  },\n  configurable: true\n});\nvideojs.Vhs = Vhs;\nObject.defineProperty(videojs, 'Hls', {\n  get: function get() {\n    videojs.log.warn('videojs.Hls is deprecated. Use videojs.Vhs instead.');\n    return Vhs;\n  },\n  configurable: true\n});\n\nif (!videojs.use) {\n  videojs.registerComponent('Hls', Vhs);\n  videojs.registerComponent('Vhs', Vhs);\n}\n\nvideojs.options.vhs = videojs.options.vhs || {};\nvideojs.options.hls = videojs.options.hls || {};\n\nif (videojs.registerPlugin) {\n  videojs.registerPlugin('reloadSourceOnError', reloadSourceOnError);\n} else {\n  videojs.plugin('reloadSourceOnError', reloadSourceOnError);\n}\n\nexport default videojs;\n","\"use strict\";Object.defineProperty(exports,\"__esModule\",{value:true});function _classCallCheck(instance,Constructor){if(!(instance instanceof Constructor)){throw new TypeError(\"Cannot call a class as a function\");}}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n *//**\n * @classdesc Creates a new key system access token.  Represents a valid key system for\n * given piece of content and key system requirements.  Used to initialize license\n * acquisition operations.\n * @ignore\n */var KeySystemAccess=/**\n     * @param {MediaPlayer.dependencies.protection.KeySystem} keySystem the key system\n     * @param {KeySystemConfiguration} ksConfiguration the\n     * subset of configurations passed to the key system access request that are supported\n     * by this user agent\n     * @class\n     * @ignore\n     */function KeySystemAccess(keySystem,ksConfiguration){_classCallCheck(this,KeySystemAccess);this.keySystem=keySystem;this.ksConfiguration=ksConfiguration;};exports.default=KeySystemAccess;\n//# sourceMappingURL=KeySystemAccess.js.map\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _ProtectionKeyController=require('../controllers/ProtectionKeyController');var _ProtectionKeyController2=_interopRequireDefault(_ProtectionKeyController);var _NeedKey=require('../vo/NeedKey');var _NeedKey2=_interopRequireDefault(_NeedKey);var _DashJSError=require('../../vo/DashJSError');var _DashJSError2=_interopRequireDefault(_DashJSError);var _ProtectionErrors=require('../errors/ProtectionErrors');var _ProtectionErrors2=_interopRequireDefault(_ProtectionErrors);var _KeyMessage=require('../vo/KeyMessage');var _KeyMessage2=_interopRequireDefault(_KeyMessage);var _KeySystemConfiguration=require('../vo/KeySystemConfiguration');var _KeySystemConfiguration2=_interopRequireDefault(_KeySystemConfiguration);var _KeySystemAccess=require('../vo/KeySystemAccess');var _KeySystemAccess2=_interopRequireDefault(_KeySystemAccess);function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}function ProtectionModel_3Feb2014(config){config=config||{};var context=this.context;var eventBus=config.eventBus;//Need to pass in here so we can use same instance since this is optional module\nvar events=config.events;var debug=config.debug;var api=config.api;var instance=void 0,logger=void 0,videoElement=void 0,keySystem=void 0,mediaKeys=void 0,keySystemAccess=void 0,sessions=void 0,eventHandler=void 0,protectionKeyController=void 0;function setup(){logger=debug.getLogger(instance);videoElement=null;keySystem=null;mediaKeys=null;keySystemAccess=null;sessions=[];protectionKeyController=(0,_ProtectionKeyController2.default)(context).getInstance();eventHandler=createEventHandler();}function reset(){try{for(var i=0;i<sessions.length;i++){closeKeySession(sessions[i]);}if(videoElement){videoElement.removeEventListener(api.needkey,eventHandler);}eventBus.trigger(events.TEARDOWN_COMPLETE);}catch(error){eventBus.trigger(events.TEARDOWN_COMPLETE,{error:'Error tearing down key sessions and MediaKeys! -- '+error.message});}}function getKeySystem(){return keySystem;}function getAllInitData(){var retVal=[];for(var i=0;i<sessions.length;i++){retVal.push(sessions[i].initData);}return retVal;}function requestKeySystemAccess(ksConfigurations){// Try key systems in order, first one with supported key system configuration\n// is used\nvar found=false;for(var ksIdx=0;ksIdx<ksConfigurations.length;ksIdx++){var systemString=ksConfigurations[ksIdx].ks.systemString;var configs=ksConfigurations[ksIdx].configs;var supportedAudio=null;var supportedVideo=null;// Try key system configs in order, first one with supported audio/video\n// is used\nfor(var configIdx=0;configIdx<configs.length;configIdx++){var audios=configs[configIdx].audioCapabilities;var videos=configs[configIdx].videoCapabilities;// Look for supported audio container/codecs\nif(audios&&audios.length!==0){supportedAudio=[];// Indicates that we have a requested audio config\nfor(var audioIdx=0;audioIdx<audios.length;audioIdx++){if(window[api.MediaKeys].isTypeSupported(systemString,audios[audioIdx].contentType)){supportedAudio.push(audios[audioIdx]);}}}// Look for supported video container/codecs\nif(videos&&videos.length!==0){supportedVideo=[];// Indicates that we have a requested video config\nfor(var videoIdx=0;videoIdx<videos.length;videoIdx++){if(window[api.MediaKeys].isTypeSupported(systemString,videos[videoIdx].contentType)){supportedVideo.push(videos[videoIdx]);}}}// No supported audio or video in this configuration OR we have\n// requested audio or video configuration that is not supported\nif(!supportedAudio&&!supportedVideo||supportedAudio&&supportedAudio.length===0||supportedVideo&&supportedVideo.length===0){continue;}// This configuration is supported\nfound=true;var ksConfig=new _KeySystemConfiguration2.default(supportedAudio,supportedVideo);var ks=protectionKeyController.getKeySystemBySystemString(systemString);eventBus.trigger(events.KEY_SYSTEM_ACCESS_COMPLETE,{data:new _KeySystemAccess2.default(ks,ksConfig)});break;}}if(!found){eventBus.trigger(events.KEY_SYSTEM_ACCESS_COMPLETE,{error:'Key system access denied! -- No valid audio/video content configurations detected!'});}}function selectKeySystem(ksAccess){try{mediaKeys=ksAccess.mediaKeys=new window[api.MediaKeys](ksAccess.keySystem.systemString);keySystem=ksAccess.keySystem;keySystemAccess=ksAccess;if(videoElement){setMediaKeys();}eventBus.trigger(events.INTERNAL_KEY_SYSTEM_SELECTED);}catch(error){eventBus.trigger(events.INTERNAL_KEY_SYSTEM_SELECTED,{error:'Error selecting keys system ('+keySystem.systemString+')! Could not create MediaKeys -- TODO'});}}function setMediaElement(mediaElement){if(videoElement===mediaElement)return;// Replacing the previous element\nif(videoElement){videoElement.removeEventListener(api.needkey,eventHandler);}videoElement=mediaElement;// Only if we are not detaching from the existing element\nif(videoElement){videoElement.addEventListener(api.needkey,eventHandler);if(mediaKeys){setMediaKeys();}}}function createKeySession(initData,protData,sessionType,cdmData){if(!keySystem||!mediaKeys||!keySystemAccess){throw new Error('Can not create sessions until you have selected a key system');}// Use the first video capability for the contentType.\n// TODO:  Not sure if there is a way to concatenate all capability data into a RFC6386-compatible format\n// If player is trying to playback Audio only stream - don't error out.\nvar capabilities=null;if(keySystemAccess.ksConfiguration.videoCapabilities&&keySystemAccess.ksConfiguration.videoCapabilities.length>0){capabilities=keySystemAccess.ksConfiguration.videoCapabilities[0];}if(capabilities===null&&keySystemAccess.ksConfiguration.audioCapabilities&&keySystemAccess.ksConfiguration.audioCapabilities.length>0){capabilities=keySystemAccess.ksConfiguration.audioCapabilities[0];}if(capabilities===null){throw new Error('Can not create sessions for unknown content types.');}var contentType=capabilities.contentType;var session=mediaKeys.createSession(contentType,new Uint8Array(initData),cdmData?new Uint8Array(cdmData):null);var sessionToken=createSessionToken(session,initData);// Add all event listeners\nsession.addEventListener(api.error,sessionToken);session.addEventListener(api.message,sessionToken);session.addEventListener(api.ready,sessionToken);session.addEventListener(api.close,sessionToken);// Add to our session list\nsessions.push(sessionToken);logger.debug('DRM: Session created.  SessionID = '+sessionToken.getSessionID());eventBus.trigger(events.KEY_SESSION_CREATED,{data:sessionToken});}function updateKeySession(sessionToken,message){var session=sessionToken.session;if(!protectionKeyController.isClearKey(keySystem)){// Send our request to the key session\nsession.update(new Uint8Array(message));}else{// For clearkey, message is a ClearKeyKeySet\nsession.update(new Uint8Array(message.toJWK()));}}/**\n     * Close the given session and release all associated keys.  Following\n     * this call, the sessionToken becomes invalid\n     *\n     * @param {Object} sessionToken - the session token\n     */function closeKeySession(sessionToken){var session=sessionToken.session;// Remove event listeners\nsession.removeEventListener(api.error,sessionToken);session.removeEventListener(api.message,sessionToken);session.removeEventListener(api.ready,sessionToken);session.removeEventListener(api.close,sessionToken);// Remove from our session list\nfor(var i=0;i<sessions.length;i++){if(sessions[i]===sessionToken){sessions.splice(i,1);break;}}// Send our request to the key session\nsession[api.release]();}function setServerCertificate()/*serverCertificate*/{/* Not supported */}function loadKeySession()/*sessionID*/{/* Not supported */}function removeKeySession()/*sessionToken*/{/* Not supported */}function createEventHandler(){return{handleEvent:function handleEvent(event){switch(event.type){case api.needkey:if(event.initData){var initData=ArrayBuffer.isView(event.initData)?event.initData.buffer:event.initData;eventBus.trigger(events.NEED_KEY,{key:new _NeedKey2.default(initData,'cenc')});}break;}}};}// IE11 does not let you set MediaKeys until it has entered a certain\n// readyState, so we need this logic to ensure we don't set the keys\n// too early\nfunction setMediaKeys(){var boundDoSetKeys=null;var doSetKeys=function doSetKeys(){videoElement.removeEventListener('loadedmetadata',boundDoSetKeys);videoElement[api.setMediaKeys](mediaKeys);eventBus.trigger(events.VIDEO_ELEMENT_SELECTED);};if(videoElement.readyState>=1){doSetKeys();}else{boundDoSetKeys=doSetKeys.bind(this);videoElement.addEventListener('loadedmetadata',boundDoSetKeys);}}// Function to create our session token objects which manage the EME\n// MediaKeySession and session-specific event handler\nfunction createSessionToken(keySession,initData){return{// Implements SessionToken\nsession:keySession,initData:initData,getSessionID:function getSessionID(){return this.session.sessionId;},getExpirationTime:function getExpirationTime(){return NaN;},getSessionType:function getSessionType(){return'temporary';},// This is our main event handler for all desired MediaKeySession events\n// These events are translated into our API-independent versions of the\n// same events\nhandleEvent:function handleEvent(event){switch(event.type){case api.error:var errorStr='KeyError';// TODO: Make better string from event\neventBus.trigger(events.KEY_ERROR,{data:new _DashJSError2.default(_ProtectionErrors2.default.MEDIA_KEYERR_CODE,errorStr,this)});break;case api.message:var message=ArrayBuffer.isView(event.message)?event.message.buffer:event.message;eventBus.trigger(events.INTERNAL_KEY_MESSAGE,{data:new _KeyMessage2.default(this,message,event.destinationURL)});break;case api.ready:logger.debug('DRM: Key added.');eventBus.trigger(events.KEY_ADDED);break;case api.close:logger.debug('DRM: Session closed.  SessionID = '+this.getSessionID());eventBus.trigger(events.KEY_SESSION_CLOSED,{data:this.getSessionID()});break;}}};}instance={getAllInitData:getAllInitData,requestKeySystemAccess:requestKeySystemAccess,getKeySystem:getKeySystem,selectKeySystem:selectKeySystem,setMediaElement:setMediaElement,createKeySession:createKeySession,updateKeySession:updateKeySession,closeKeySession:closeKeySession,setServerCertificate:setServerCertificate,loadKeySession:loadKeySession,removeKeySession:removeKeySession,stop:reset,reset:reset};setup();return instance;}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n *//**\n * Implementation of the EME APIs as of the 3 Feb 2014 state of the specification.\n *\n * Implemented by Internet Explorer 11 (Windows 8.1)\n *\n * @implements ProtectionModel\n * @class\n */ProtectionModel_3Feb2014.__dashjs_factory_name='ProtectionModel_3Feb2014';exports.default=dashjs.FactoryMaker.getClassFactory(ProtectionModel_3Feb2014);/* jshint ignore:line */\n//# sourceMappingURL=ProtectionModel_3Feb2014.js.map\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _ReportingFactory=require('../reporting/ReportingFactory');var _ReportingFactory2=_interopRequireDefault(_ReportingFactory);function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}function ReportingController(config){var reporters=[];var instance=void 0;var reportingFactory=(0,_ReportingFactory2.default)(this.context).getInstance(config);function initialize(reporting,rangeController){// \"if multiple Reporting elements are present, it is expected that\n// the client processes one of the recognized reporting schemes.\"\n// to ignore this, and support multiple Reporting per Metric,\n// simply change the 'some' below to 'forEach'\nreporting.some(function(r){var reporter=reportingFactory.create(r,rangeController);if(reporter){reporters.push(reporter);return true;}});}function reset(){reporters.forEach(function(r){return r.reset();});reporters=[];}function report(type,vos){reporters.forEach(function(r){return r.report(type,vos);});}instance={initialize:initialize,reset:reset,report:report};return instance;}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n */ReportingController.__dashjs_factory_name='ReportingController';exports.default=dashjs.FactoryMaker.getClassFactory(ReportingController);/* jshint ignore:line */\n//# sourceMappingURL=ReportingController.js.map\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});function _classCallCheck(instance,Constructor){if(!(instance instanceof Constructor)){throw new TypeError(\"Cannot call a class as a function\");}}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n *//**\n * @class\n * @ignore\n */var DEFAULT_DVB_PRIORITY=1;var DEFAULT_DVB_WEIGHT=1;var BaseURL=function BaseURL(url,serviceLocation,priority,weight){_classCallCheck(this,BaseURL);this.url=url||'';this.serviceLocation=serviceLocation||url||'';// DVB extensions\nthis.dvb_priority=priority||DEFAULT_DVB_PRIORITY;this.dvb_weight=weight||DEFAULT_DVB_WEIGHT;this.availabilityTimeOffset=0;this.availabilityTimeComplete=true;/* currently unused:\n         * byteRange,\n         */};BaseURL.DEFAULT_DVB_PRIORITY=DEFAULT_DVB_PRIORITY;BaseURL.DEFAULT_DVB_WEIGHT=DEFAULT_DVB_WEIGHT;exports.default=BaseURL;\n//# sourceMappingURL=BaseURL.js.map\n","var TO_STRING_TAG_SUPPORT = require('../internals/to-string-tag-support');\nvar classofRaw = require('../internals/classof-raw');\nvar wellKnownSymbol = require('../internals/well-known-symbol');\n\nvar TO_STRING_TAG = wellKnownSymbol('toStringTag');\n// ES3 wrong here\nvar CORRECT_ARGUMENTS = classofRaw(function () { return arguments; }()) == 'Arguments';\n\n// fallback for IE11 Script Access Denied error\nvar tryGet = function (it, key) {\n  try {\n    return it[key];\n  } catch (error) { /* empty */ }\n};\n\n// getting tag from ES6+ `Object.prototype.toString`\nmodule.exports = TO_STRING_TAG_SUPPORT ? classofRaw : function (it) {\n  var O, tag, result;\n  return it === undefined ? 'Undefined' : it === null ? 'Null'\n    // @@toStringTag case\n    : typeof (tag = tryGet(O = Object(it), TO_STRING_TAG)) == 'string' ? tag\n    // builtinTag case\n    : CORRECT_ARGUMENTS ? classofRaw(O)\n    // ES3 arguments fallback\n    : (result = classofRaw(O)) == 'Object' && typeof O.callee == 'function' ? 'Arguments' : result;\n};\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _Constants=require('../../constants/Constants');var _Constants2=_interopRequireDefault(_Constants);var _Debug=require('../../../core/Debug');var _Debug2=_interopRequireDefault(_Debug);var _FactoryMaker=require('../../../core/FactoryMaker');var _FactoryMaker2=_interopRequireDefault(_FactoryMaker);var _FragmentRequest=require('../../../streaming/vo/FragmentRequest');var _FragmentRequest2=_interopRequireDefault(_FragmentRequest);function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n */function NextFragmentRequestRule(config){config=config||{};var context=this.context;var textController=config.textController;var playbackController=config.playbackController;var instance=void 0,logger=void 0;function setup(){logger=(0,_Debug2.default)(context).getInstance().getLogger(instance);}function execute(streamProcessor,seekTarget,requestToReplace){if(!streamProcessor){return null;}var representationInfo=streamProcessor.getRepresentationInfo();var mediaType=streamProcessor.getType();var hasSeekTarget=!isNaN(seekTarget);var bufferController=streamProcessor.getBufferController();var currentTime=playbackController.getNormalizedTime();var time=hasSeekTarget?seekTarget:streamProcessor.getIndexHandlerTime();var bufferIsDivided=false;var request=void 0;if(isNaN(time)||mediaType===_Constants2.default.FRAGMENTED_TEXT&&!textController.isTextEnabled()){return null;}/**\n         * This is critical for IE/Safari/EDGE\n         * */if(bufferController){var range=bufferController.getRangeAt(time);var playingRange=bufferController.getRangeAt(currentTime);var hasDiscontinuities=bufferController.getBuffer().hasDiscontinuitiesAfter(currentTime);if((range!==null||playingRange!==null)&&!hasSeekTarget){if(!range||playingRange&&playingRange.start!=range.start&&playingRange.end!=range.end){if(hasDiscontinuities&&mediaType!==_Constants2.default.FRAGMENTED_TEXT){streamProcessor.getFragmentModel().removeExecutedRequestsAfterTime(playingRange.end);bufferIsDivided=true;}range=playingRange;}}}if(requestToReplace){time=requestToReplace.startTime+requestToReplace.duration/2;request=streamProcessor.getFragmentRequest(representationInfo,time,{timeThreshold:0,ignoreIsFinished:true});}else{// Use time just whenever is strictly needed\nrequest=streamProcessor.getFragmentRequest(representationInfo,hasSeekTarget||bufferIsDivided?time:undefined,{keepIdx:!hasSeekTarget&&!bufferIsDivided});// Then, check if this request was downloaded or not\nwhile(request&&request.action!==_FragmentRequest2.default.ACTION_COMPLETE&&streamProcessor.getFragmentModel().isFragmentLoaded(request)){// loop until we found not loaded fragment, or no fragment\nrequest=streamProcessor.getFragmentRequest(representationInfo);}}return request;}instance={execute:execute};setup();return instance;}NextFragmentRequestRule.__dashjs_factory_name='NextFragmentRequestRule';exports.default=_FactoryMaker2.default.getClassFactory(NextFragmentRequestRule);\n//# sourceMappingURL=NextFragmentRequestRule.js.map\n","'use strict';\n\nvar utils = require('./../utils');\n\nfunction InterceptorManager() {\n  this.handlers = [];\n}\n\n/**\n * Add a new interceptor to the stack\n *\n * @param {Function} fulfilled The function to handle `then` for a `Promise`\n * @param {Function} rejected The function to handle `reject` for a `Promise`\n *\n * @return {Number} An ID used to remove interceptor later\n */\nInterceptorManager.prototype.use = function use(fulfilled, rejected) {\n  this.handlers.push({\n    fulfilled: fulfilled,\n    rejected: rejected\n  });\n  return this.handlers.length - 1;\n};\n\n/**\n * Remove an interceptor from the stack\n *\n * @param {Number} id The ID that was returned by `use`\n */\nInterceptorManager.prototype.eject = function eject(id) {\n  if (this.handlers[id]) {\n    this.handlers[id] = null;\n  }\n};\n\n/**\n * Iterate over all the registered interceptors\n *\n * This method is particularly useful for skipping over any\n * interceptors that may have become `null` calling `eject`.\n *\n * @param {Function} fn The function to call for each interceptor\n */\nInterceptorManager.prototype.forEach = function forEach(fn) {\n  utils.forEach(this.handlers, function forEachHandler(h) {\n    if (h !== null) {\n      fn(h);\n    }\n  });\n};\n\nmodule.exports = InterceptorManager;\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _EventsBase2=require('../../core/events/EventsBase');var _EventsBase3=_interopRequireDefault(_EventsBase2);function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}function _classCallCheck(instance,Constructor){if(!(instance instanceof Constructor)){throw new TypeError(\"Cannot call a class as a function\");}}function _possibleConstructorReturn(self,call){if(!self){throw new ReferenceError(\"this hasn't been initialised - super() hasn't been called\");}return call&&(typeof call===\"object\"||typeof call===\"function\")?call:self;}function _inherits(subClass,superClass){if(typeof superClass!==\"function\"&&superClass!==null){throw new TypeError(\"Super expression must either be null or a function, not \"+typeof superClass);}subClass.prototype=Object.create(superClass&&superClass.prototype,{constructor:{value:subClass,enumerable:false,writable:true,configurable:true}});if(superClass)Object.setPrototypeOf?Object.setPrototypeOf(subClass,superClass):subClass.__proto__=superClass;}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n */var MetricsReportingEvents=function(_EventsBase){_inherits(MetricsReportingEvents,_EventsBase);function MetricsReportingEvents(){_classCallCheck(this,MetricsReportingEvents);var _this=_possibleConstructorReturn(this,(MetricsReportingEvents.__proto__||Object.getPrototypeOf(MetricsReportingEvents)).call(this));_this.METRICS_INITIALISATION_COMPLETE='internal_metricsReportingInitialized';_this.BECAME_REPORTING_PLAYER='internal_becameReportingPlayer';return _this;}return MetricsReportingEvents;}(_EventsBase3.default);var metricsReportingEvents=new MetricsReportingEvents();exports.default=metricsReportingEvents;\n//# sourceMappingURL=MetricsReportingEvents.js.map\n","var shared = require('../internals/shared');\nvar uid = require('../internals/uid');\n\nvar keys = shared('keys');\n\nmodule.exports = function (key) {\n  return keys[key] || (keys[key] = uid(key));\n};\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _SwitchRequest=require('../SwitchRequest');var _SwitchRequest2=_interopRequireDefault(_SwitchRequest);var _FactoryMaker=require('../../../core/FactoryMaker');var _FactoryMaker2=_interopRequireDefault(_FactoryMaker);var _Debug=require('../../../core/Debug');var _Debug2=_interopRequireDefault(_Debug);function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}function AbandonRequestsRule(config){config=config||{};var ABANDON_MULTIPLIER=1.8;var GRACE_TIME_THRESHOLD=500;var MIN_LENGTH_TO_AVERAGE=5;var context=this.context;var mediaPlayerModel=config.mediaPlayerModel;var dashMetrics=config.dashMetrics;var settings=config.settings;var instance=void 0,logger=void 0,fragmentDict=void 0,abandonDict=void 0,throughputArray=void 0;function setup(){logger=(0,_Debug2.default)(context).getInstance().getLogger(instance);reset();}function setFragmentRequestDict(type,id){fragmentDict[type]=fragmentDict[type]||{};fragmentDict[type][id]=fragmentDict[type][id]||{};}function storeLastRequestThroughputByType(type,throughput){throughputArray[type]=throughputArray[type]||[];throughputArray[type].push(throughput);}function shouldAbandon(rulesContext){var switchRequest=(0,_SwitchRequest2.default)(context).create(_SwitchRequest2.default.NO_CHANGE,{name:AbandonRequestsRule.__dashjs_factory_name});if(!rulesContext||!rulesContext.hasOwnProperty('getMediaInfo')||!rulesContext.hasOwnProperty('getMediaType')||!rulesContext.hasOwnProperty('getCurrentRequest')||!rulesContext.hasOwnProperty('getRepresentationInfo')||!rulesContext.hasOwnProperty('getAbrController')){return switchRequest;}var mediaInfo=rulesContext.getMediaInfo();var mediaType=rulesContext.getMediaType();var req=rulesContext.getCurrentRequest();if(!isNaN(req.index)){setFragmentRequestDict(mediaType,req.index);var stableBufferTime=mediaPlayerModel.getStableBufferTime();var bufferLevel=dashMetrics.getCurrentBufferLevel(mediaType);if(bufferLevel>stableBufferTime){return switchRequest;}var fragmentInfo=fragmentDict[mediaType][req.index];if(fragmentInfo===null||req.firstByteDate===null||abandonDict.hasOwnProperty(fragmentInfo.id)){return switchRequest;}//setup some init info based on first progress event\nif(fragmentInfo.firstByteTime===undefined){throughputArray[mediaType]=[];fragmentInfo.firstByteTime=req.firstByteDate.getTime();fragmentInfo.segmentDuration=req.duration;fragmentInfo.bytesTotal=req.bytesTotal;fragmentInfo.id=req.index;}fragmentInfo.bytesLoaded=req.bytesLoaded;fragmentInfo.elapsedTime=new Date().getTime()-fragmentInfo.firstByteTime;if(fragmentInfo.bytesLoaded>0&&fragmentInfo.elapsedTime>0){storeLastRequestThroughputByType(mediaType,Math.round(fragmentInfo.bytesLoaded*8/fragmentInfo.elapsedTime));}if(throughputArray[mediaType].length>=MIN_LENGTH_TO_AVERAGE&&fragmentInfo.elapsedTime>GRACE_TIME_THRESHOLD&&fragmentInfo.bytesLoaded<fragmentInfo.bytesTotal){var totalSampledValue=throughputArray[mediaType].reduce(function(a,b){return a+b;},0);fragmentInfo.measuredBandwidthInKbps=Math.round(totalSampledValue/throughputArray[mediaType].length);fragmentInfo.estimatedTimeOfDownload=+(fragmentInfo.bytesTotal*8/fragmentInfo.measuredBandwidthInKbps/1000).toFixed(2);if(fragmentInfo.estimatedTimeOfDownload<fragmentInfo.segmentDuration*ABANDON_MULTIPLIER||rulesContext.getRepresentationInfo().quality===0){return switchRequest;}else if(!abandonDict.hasOwnProperty(fragmentInfo.id)){var abrController=rulesContext.getAbrController();var bytesRemaining=fragmentInfo.bytesTotal-fragmentInfo.bytesLoaded;var bitrateList=abrController.getBitrateList(mediaInfo);var quality=abrController.getQualityForBitrate(mediaInfo,fragmentInfo.measuredBandwidthInKbps*settings.get().streaming.abr.bandwidthSafetyFactor);var minQuality=abrController.getMinAllowedIndexFor(mediaType);var newQuality=minQuality!==undefined?Math.max(minQuality,quality):quality;var estimateOtherBytesTotal=fragmentInfo.bytesTotal*bitrateList[newQuality].bitrate/bitrateList[abrController.getQualityFor(mediaType)].bitrate;if(bytesRemaining>estimateOtherBytesTotal){switchRequest.quality=newQuality;switchRequest.reason.throughput=fragmentInfo.measuredBandwidthInKbps;switchRequest.reason.fragmentID=fragmentInfo.id;abandonDict[fragmentInfo.id]=fragmentInfo;logger.debug('['+mediaType+'] frag id',fragmentInfo.id,' is asking to abandon and switch to quality to ',newQuality,' measured bandwidth was',fragmentInfo.measuredBandwidthInKbps);delete fragmentDict[mediaType][fragmentInfo.id];}}}else if(fragmentInfo.bytesLoaded===fragmentInfo.bytesTotal){delete fragmentDict[mediaType][fragmentInfo.id];}}return switchRequest;}function reset(){fragmentDict={};abandonDict={};throughputArray=[];}instance={shouldAbandon:shouldAbandon,reset:reset};setup();return instance;}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n */AbandonRequestsRule.__dashjs_factory_name='AbandonRequestsRule';exports.default=_FactoryMaker2.default.getClassFactory(AbandonRequestsRule);\n//# sourceMappingURL=AbandonRequestsRule.js.map\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _RangeController=require('./RangeController');var _RangeController2=_interopRequireDefault(_RangeController);var _ReportingController=require('./ReportingController');var _ReportingController2=_interopRequireDefault(_ReportingController);var _MetricsHandlersController=require('./MetricsHandlersController');var _MetricsHandlersController2=_interopRequireDefault(_MetricsHandlersController);function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}function MetricsController(config){config=config||{};var metricsHandlersController=void 0,reportingController=void 0,rangeController=void 0,instance=void 0;var context=this.context;function initialize(metricsEntry){try{rangeController=(0,_RangeController2.default)(context).create({mediaElement:config.mediaElement});rangeController.initialize(metricsEntry.Range);reportingController=(0,_ReportingController2.default)(context).create({debug:config.debug,metricsConstants:config.metricsConstants});reportingController.initialize(metricsEntry.Reporting,rangeController);metricsHandlersController=(0,_MetricsHandlersController2.default)(context).create({debug:config.debug,eventBus:config.eventBus,metricsConstants:config.metricsConstants,events:config.events});metricsHandlersController.initialize(metricsEntry.metrics,reportingController);}catch(e){reset();throw e;}}function reset(){if(metricsHandlersController){metricsHandlersController.reset();}if(reportingController){reportingController.reset();}if(rangeController){rangeController.reset();}}instance={initialize:initialize,reset:reset};return instance;}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n */MetricsController.__dashjs_factory_name='MetricsController';exports.default=dashjs.FactoryMaker.getClassFactory(MetricsController);/* jshint ignore:line */\n//# sourceMappingURL=MetricsController.js.map\n","/**\n * Copyright 2013 vtt.js Contributors\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *   http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nvar scrollSetting = {\n  \"\": true,\n  \"up\": true\n};\n\nfunction findScrollSetting(value) {\n  if (typeof value !== \"string\") {\n    return false;\n  }\n  var scroll = scrollSetting[value.toLowerCase()];\n  return scroll ? value.toLowerCase() : false;\n}\n\nfunction isValidPercentValue(value) {\n  return typeof value === \"number\" && (value >= 0 && value <= 100);\n}\n\n// VTTRegion shim http://dev.w3.org/html5/webvtt/#vttregion-interface\nfunction VTTRegion() {\n  var _width = 100;\n  var _lines = 3;\n  var _regionAnchorX = 0;\n  var _regionAnchorY = 100;\n  var _viewportAnchorX = 0;\n  var _viewportAnchorY = 100;\n  var _scroll = \"\";\n\n  Object.defineProperties(this, {\n    \"width\": {\n      enumerable: true,\n      get: function() {\n        return _width;\n      },\n      set: function(value) {\n        if (!isValidPercentValue(value)) {\n          throw new Error(\"Width must be between 0 and 100.\");\n        }\n        _width = value;\n      }\n    },\n    \"lines\": {\n      enumerable: true,\n      get: function() {\n        return _lines;\n      },\n      set: function(value) {\n        if (typeof value !== \"number\") {\n          throw new TypeError(\"Lines must be set to a number.\");\n        }\n        _lines = value;\n      }\n    },\n    \"regionAnchorY\": {\n      enumerable: true,\n      get: function() {\n        return _regionAnchorY;\n      },\n      set: function(value) {\n        if (!isValidPercentValue(value)) {\n          throw new Error(\"RegionAnchorX must be between 0 and 100.\");\n        }\n        _regionAnchorY = value;\n      }\n    },\n    \"regionAnchorX\": {\n      enumerable: true,\n      get: function() {\n        return _regionAnchorX;\n      },\n      set: function(value) {\n        if(!isValidPercentValue(value)) {\n          throw new Error(\"RegionAnchorY must be between 0 and 100.\");\n        }\n        _regionAnchorX = value;\n      }\n    },\n    \"viewportAnchorY\": {\n      enumerable: true,\n      get: function() {\n        return _viewportAnchorY;\n      },\n      set: function(value) {\n        if (!isValidPercentValue(value)) {\n          throw new Error(\"ViewportAnchorY must be between 0 and 100.\");\n        }\n        _viewportAnchorY = value;\n      }\n    },\n    \"viewportAnchorX\": {\n      enumerable: true,\n      get: function() {\n        return _viewportAnchorX;\n      },\n      set: function(value) {\n        if (!isValidPercentValue(value)) {\n          throw new Error(\"ViewportAnchorX must be between 0 and 100.\");\n        }\n        _viewportAnchorX = value;\n      }\n    },\n    \"scroll\": {\n      enumerable: true,\n      get: function() {\n        return _scroll;\n      },\n      set: function(value) {\n        var setting = findScrollSetting(value);\n        // Have to check for false as an empty string is a legal value.\n        if (setting === false) {\n          console.warn(\"Scroll: an invalid or illegal string was specified.\");\n        } else {\n          _scroll = setting;\n        }\n      }\n    }\n  });\n}\n\nmodule.exports = VTTRegion;\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _MediaPlayer=require('./MediaPlayer');var _MediaPlayer2=_interopRequireDefault(_MediaPlayer);function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}function MediaPlayerFactory(){/**\n     * mime-type identifier for any source content to be accepted as a dash manifest by the create() method.\n     * @type {string}\n     */var SUPPORTED_MIME_TYPE='application/dash+xml';var logger=void 0;/**\n     *  A new MediaPlayer is instantiated for the supplied videoElement and optional source and context.  If no context is provided,\n     *  a default DashContext is used. If no source is provided, the videoElement is interrogated to extract the first source whose\n     *  type is application/dash+xml.\n     * The autoplay property of the videoElement is preserved. Any preload attribute is ignored. This method should be called after the page onLoad event is dispatched.\n     * @param {HTMLMediaElement} video\n     * @param {HTMLSourceElement} source\n     * @param {Object} context\n     * @returns {MediaPlayer|null}\n     */function create(video,source,context){if(!video||!/^VIDEO$/i.test(video.nodeName))return null;if(video._dashjs_player)return video._dashjs_player;var player=void 0;var videoID=video.id||video.name||'video element';source=source||[].slice.call(video.querySelectorAll('source')).filter(function(s){return s.type==SUPPORTED_MIME_TYPE;})[0];if(!source&&video.src){source=document.createElement('source');source.src=video.src;}else if(!source&&!video.src){return null;}context=context||{};player=(0,_MediaPlayer2.default)(context).create();player.initialize(video,source.src,video.autoplay);if(!logger){logger=player.getDebug().getLogger();}logger.debug('Converted '+videoID+' to dash.js player and added content: '+source.src);// Store a reference to the player on the video element so it can be gotten at for debugging and so we know its\n// already been setup.\nvideo._dashjs_player=player;return player;}/**\n     * Searches the provided scope for all instances of the indicated selector. If no scope is provided, document is used. If no selector is\n     * specified, [data-dashjs-player] is used. The declarative setup also looks for source elements with the type attribute set to 'application/dash+xml'.\n     * It then looks for those video elements which have a source element defined with a type matching 'application/dash+xml'.\n     * A new MediaPlayer is instantiated for each matching video element and the appropriate source is assigned.\n     * The autoplay property of the video element is preserved. Any preload attribute is ignored. This method should be called after the page onLoad event is dispatched.\n     * Returns an array holding all the MediaPlayer instances that were added by this method.\n     * @param {string} selector - CSS selector\n     * @param {Object} scope\n     * @returns {Array} an array of MediaPlayer objects\n     */function createAll(selector,scope){var aPlayers=[];selector=selector||'[data-dashjs-player]';scope=scope||document;var videos=scope.querySelectorAll(selector);for(var i=0;i<videos.length;i++){var player=create(videos[i],null);aPlayers.push(player);}var sources=scope.querySelectorAll('source[type=\"'+SUPPORTED_MIME_TYPE+'\"]');for(var _i=0;_i<sources.length;_i++){var video=findVideo(sources[_i]);var _player=create(video,null);aPlayers.push(_player);}return aPlayers;}function findVideo(el){if(/^VIDEO$/i.test(el.nodeName)){return el;}else{return findVideo(el.parentNode);}}return{create:create,createAll:createAll};}var instance=MediaPlayerFactory();var loadInterval=void 0;function loadHandler(){window.removeEventListener('load',loadHandler);instance.createAll();}function loadIntervalHandler(){if(window.dashjs){window.clearInterval(loadInterval);instance.createAll();}}var avoidAutoCreate=typeof window!=='undefined'&&window&&window.dashjs&&window.dashjs.skipAutoCreate;if(!avoidAutoCreate&&typeof window!=='undefined'&&window&&window.addEventListener){if(window.document.readyState==='complete'){if(window.dashjs){instance.createAll();}else{// If loaded asynchronously, window.readyState may be 'complete' even if dashjs hasn't loaded yet\nloadInterval=window.setInterval(loadIntervalHandler,500);}}else{window.addEventListener('load',loadHandler);}}exports.default=instance;\n//# sourceMappingURL=MediaPlayerFactory.js.map\n","// Copyright Joyent, Inc. and other Node contributors.\n//\n// Permission is hereby granted, free of charge, to any person obtaining a\n// copy of this software and associated documentation files (the\n// \"Software\"), to deal in the Software without restriction, including\n// without limitation the rights to use, copy, modify, merge, publish,\n// distribute, sublicense, and/or sell copies of the Software, and to permit\n// persons to whom the Software is furnished to do so, subject to the\n// following conditions:\n//\n// The above copyright notice and this permission notice shall be included\n// in all copies or substantial portions of the Software.\n//\n// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS\n// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF\n// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN\n// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,\n// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR\n// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE\n// USE OR OTHER DEALINGS IN THE SOFTWARE.\n\n'use strict';\n\nvar R = typeof Reflect === 'object' ? Reflect : null\nvar ReflectApply = R && typeof R.apply === 'function'\n  ? R.apply\n  : function ReflectApply(target, receiver, args) {\n    return Function.prototype.apply.call(target, receiver, args);\n  }\n\nvar ReflectOwnKeys\nif (R && typeof R.ownKeys === 'function') {\n  ReflectOwnKeys = R.ownKeys\n} else if (Object.getOwnPropertySymbols) {\n  ReflectOwnKeys = function ReflectOwnKeys(target) {\n    return Object.getOwnPropertyNames(target)\n      .concat(Object.getOwnPropertySymbols(target));\n  };\n} else {\n  ReflectOwnKeys = function ReflectOwnKeys(target) {\n    return Object.getOwnPropertyNames(target);\n  };\n}\n\nfunction ProcessEmitWarning(warning) {\n  if (console && console.warn) console.warn(warning);\n}\n\nvar NumberIsNaN = Number.isNaN || function NumberIsNaN(value) {\n  return value !== value;\n}\n\nfunction EventEmitter() {\n  EventEmitter.init.call(this);\n}\nmodule.exports = EventEmitter;\n\n// Backwards-compat with node 0.10.x\nEventEmitter.EventEmitter = EventEmitter;\n\nEventEmitter.prototype._events = undefined;\nEventEmitter.prototype._eventsCount = 0;\nEventEmitter.prototype._maxListeners = undefined;\n\n// By default EventEmitters will print a warning if more than 10 listeners are\n// added to it. This is a useful default which helps finding memory leaks.\nvar defaultMaxListeners = 10;\n\nfunction checkListener(listener) {\n  if (typeof listener !== 'function') {\n    throw new TypeError('The \"listener\" argument must be of type Function. Received type ' + typeof listener);\n  }\n}\n\nObject.defineProperty(EventEmitter, 'defaultMaxListeners', {\n  enumerable: true,\n  get: function() {\n    return defaultMaxListeners;\n  },\n  set: function(arg) {\n    if (typeof arg !== 'number' || arg < 0 || NumberIsNaN(arg)) {\n      throw new RangeError('The value of \"defaultMaxListeners\" is out of range. It must be a non-negative number. Received ' + arg + '.');\n    }\n    defaultMaxListeners = arg;\n  }\n});\n\nEventEmitter.init = function() {\n\n  if (this._events === undefined ||\n      this._events === Object.getPrototypeOf(this)._events) {\n    this._events = Object.create(null);\n    this._eventsCount = 0;\n  }\n\n  this._maxListeners = this._maxListeners || undefined;\n};\n\n// Obviously not all Emitters should be limited to 10. This function allows\n// that to be increased. Set to zero for unlimited.\nEventEmitter.prototype.setMaxListeners = function setMaxListeners(n) {\n  if (typeof n !== 'number' || n < 0 || NumberIsNaN(n)) {\n    throw new RangeError('The value of \"n\" is out of range. It must be a non-negative number. Received ' + n + '.');\n  }\n  this._maxListeners = n;\n  return this;\n};\n\nfunction _getMaxListeners(that) {\n  if (that._maxListeners === undefined)\n    return EventEmitter.defaultMaxListeners;\n  return that._maxListeners;\n}\n\nEventEmitter.prototype.getMaxListeners = function getMaxListeners() {\n  return _getMaxListeners(this);\n};\n\nEventEmitter.prototype.emit = function emit(type) {\n  var args = [];\n  for (var i = 1; i < arguments.length; i++) args.push(arguments[i]);\n  var doError = (type === 'error');\n\n  var events = this._events;\n  if (events !== undefined)\n    doError = (doError && events.error === undefined);\n  else if (!doError)\n    return false;\n\n  // If there is no 'error' event listener then throw.\n  if (doError) {\n    var er;\n    if (args.length > 0)\n      er = args[0];\n    if (er instanceof Error) {\n      // Note: The comments on the `throw` lines are intentional, they show\n      // up in Node's output if this results in an unhandled exception.\n      throw er; // Unhandled 'error' event\n    }\n    // At least give some kind of context to the user\n    var err = new Error('Unhandled error.' + (er ? ' (' + er.message + ')' : ''));\n    err.context = er;\n    throw err; // Unhandled 'error' event\n  }\n\n  var handler = events[type];\n\n  if (handler === undefined)\n    return false;\n\n  if (typeof handler === 'function') {\n    ReflectApply(handler, this, args);\n  } else {\n    var len = handler.length;\n    var listeners = arrayClone(handler, len);\n    for (var i = 0; i < len; ++i)\n      ReflectApply(listeners[i], this, args);\n  }\n\n  return true;\n};\n\nfunction _addListener(target, type, listener, prepend) {\n  var m;\n  var events;\n  var existing;\n\n  checkListener(listener);\n\n  events = target._events;\n  if (events === undefined) {\n    events = target._events = Object.create(null);\n    target._eventsCount = 0;\n  } else {\n    // To avoid recursion in the case that type === \"newListener\"! Before\n    // adding it to the listeners, first emit \"newListener\".\n    if (events.newListener !== undefined) {\n      target.emit('newListener', type,\n                  listener.listener ? listener.listener : listener);\n\n      // Re-assign `events` because a newListener handler could have caused the\n      // this._events to be assigned to a new object\n      events = target._events;\n    }\n    existing = events[type];\n  }\n\n  if (existing === undefined) {\n    // Optimize the case of one listener. Don't need the extra array object.\n    existing = events[type] = listener;\n    ++target._eventsCount;\n  } else {\n    if (typeof existing === 'function') {\n      // Adding the second element, need to change to array.\n      existing = events[type] =\n        prepend ? [listener, existing] : [existing, listener];\n      // If we've already got an array, just append.\n    } else if (prepend) {\n      existing.unshift(listener);\n    } else {\n      existing.push(listener);\n    }\n\n    // Check for listener leak\n    m = _getMaxListeners(target);\n    if (m > 0 && existing.length > m && !existing.warned) {\n      existing.warned = true;\n      // No error code for this since it is a Warning\n      // eslint-disable-next-line no-restricted-syntax\n      var w = new Error('Possible EventEmitter memory leak detected. ' +\n                          existing.length + ' ' + String(type) + ' listeners ' +\n                          'added. Use emitter.setMaxListeners() to ' +\n                          'increase limit');\n      w.name = 'MaxListenersExceededWarning';\n      w.emitter = target;\n      w.type = type;\n      w.count = existing.length;\n      ProcessEmitWarning(w);\n    }\n  }\n\n  return target;\n}\n\nEventEmitter.prototype.addListener = function addListener(type, listener) {\n  return _addListener(this, type, listener, false);\n};\n\nEventEmitter.prototype.on = EventEmitter.prototype.addListener;\n\nEventEmitter.prototype.prependListener =\n    function prependListener(type, listener) {\n      return _addListener(this, type, listener, true);\n    };\n\nfunction onceWrapper() {\n  if (!this.fired) {\n    this.target.removeListener(this.type, this.wrapFn);\n    this.fired = true;\n    if (arguments.length === 0)\n      return this.listener.call(this.target);\n    return this.listener.apply(this.target, arguments);\n  }\n}\n\nfunction _onceWrap(target, type, listener) {\n  var state = { fired: false, wrapFn: undefined, target: target, type: type, listener: listener };\n  var wrapped = onceWrapper.bind(state);\n  wrapped.listener = listener;\n  state.wrapFn = wrapped;\n  return wrapped;\n}\n\nEventEmitter.prototype.once = function once(type, listener) {\n  checkListener(listener);\n  this.on(type, _onceWrap(this, type, listener));\n  return this;\n};\n\nEventEmitter.prototype.prependOnceListener =\n    function prependOnceListener(type, listener) {\n      checkListener(listener);\n      this.prependListener(type, _onceWrap(this, type, listener));\n      return this;\n    };\n\n// Emits a 'removeListener' event if and only if the listener was removed.\nEventEmitter.prototype.removeListener =\n    function removeListener(type, listener) {\n      var list, events, position, i, originalListener;\n\n      checkListener(listener);\n\n      events = this._events;\n      if (events === undefined)\n        return this;\n\n      list = events[type];\n      if (list === undefined)\n        return this;\n\n      if (list === listener || list.listener === listener) {\n        if (--this._eventsCount === 0)\n          this._events = Object.create(null);\n        else {\n          delete events[type];\n          if (events.removeListener)\n            this.emit('removeListener', type, list.listener || listener);\n        }\n      } else if (typeof list !== 'function') {\n        position = -1;\n\n        for (i = list.length - 1; i >= 0; i--) {\n          if (list[i] === listener || list[i].listener === listener) {\n            originalListener = list[i].listener;\n            position = i;\n            break;\n          }\n        }\n\n        if (position < 0)\n          return this;\n\n        if (position === 0)\n          list.shift();\n        else {\n          spliceOne(list, position);\n        }\n\n        if (list.length === 1)\n          events[type] = list[0];\n\n        if (events.removeListener !== undefined)\n          this.emit('removeListener', type, originalListener || listener);\n      }\n\n      return this;\n    };\n\nEventEmitter.prototype.off = EventEmitter.prototype.removeListener;\n\nEventEmitter.prototype.removeAllListeners =\n    function removeAllListeners(type) {\n      var listeners, events, i;\n\n      events = this._events;\n      if (events === undefined)\n        return this;\n\n      // not listening for removeListener, no need to emit\n      if (events.removeListener === undefined) {\n        if (arguments.length === 0) {\n          this._events = Object.create(null);\n          this._eventsCount = 0;\n        } else if (events[type] !== undefined) {\n          if (--this._eventsCount === 0)\n            this._events = Object.create(null);\n          else\n            delete events[type];\n        }\n        return this;\n      }\n\n      // emit removeListener for all listeners on all events\n      if (arguments.length === 0) {\n        var keys = Object.keys(events);\n        var key;\n        for (i = 0; i < keys.length; ++i) {\n          key = keys[i];\n          if (key === 'removeListener') continue;\n          this.removeAllListeners(key);\n        }\n        this.removeAllListeners('removeListener');\n        this._events = Object.create(null);\n        this._eventsCount = 0;\n        return this;\n      }\n\n      listeners = events[type];\n\n      if (typeof listeners === 'function') {\n        this.removeListener(type, listeners);\n      } else if (listeners !== undefined) {\n        // LIFO order\n        for (i = listeners.length - 1; i >= 0; i--) {\n          this.removeListener(type, listeners[i]);\n        }\n      }\n\n      return this;\n    };\n\nfunction _listeners(target, type, unwrap) {\n  var events = target._events;\n\n  if (events === undefined)\n    return [];\n\n  var evlistener = events[type];\n  if (evlistener === undefined)\n    return [];\n\n  if (typeof evlistener === 'function')\n    return unwrap ? [evlistener.listener || evlistener] : [evlistener];\n\n  return unwrap ?\n    unwrapListeners(evlistener) : arrayClone(evlistener, evlistener.length);\n}\n\nEventEmitter.prototype.listeners = function listeners(type) {\n  return _listeners(this, type, true);\n};\n\nEventEmitter.prototype.rawListeners = function rawListeners(type) {\n  return _listeners(this, type, false);\n};\n\nEventEmitter.listenerCount = function(emitter, type) {\n  if (typeof emitter.listenerCount === 'function') {\n    return emitter.listenerCount(type);\n  } else {\n    return listenerCount.call(emitter, type);\n  }\n};\n\nEventEmitter.prototype.listenerCount = listenerCount;\nfunction listenerCount(type) {\n  var events = this._events;\n\n  if (events !== undefined) {\n    var evlistener = events[type];\n\n    if (typeof evlistener === 'function') {\n      return 1;\n    } else if (evlistener !== undefined) {\n      return evlistener.length;\n    }\n  }\n\n  return 0;\n}\n\nEventEmitter.prototype.eventNames = function eventNames() {\n  return this._eventsCount > 0 ? ReflectOwnKeys(this._events) : [];\n};\n\nfunction arrayClone(arr, n) {\n  var copy = new Array(n);\n  for (var i = 0; i < n; ++i)\n    copy[i] = arr[i];\n  return copy;\n}\n\nfunction spliceOne(list, index) {\n  for (; index + 1 < list.length; index++)\n    list[index] = list[index + 1];\n  list.pop();\n}\n\nfunction unwrapListeners(arr) {\n  var ret = new Array(arr.length);\n  for (var i = 0; i < ret.length; ++i) {\n    ret[i] = arr[i].listener || arr[i];\n  }\n  return ret;\n}\n",";(function (sax) { // wrapper for non-node envs\n  sax.parser = function (strict, opt) { return new SAXParser(strict, opt) }\n  sax.SAXParser = SAXParser\n  sax.SAXStream = SAXStream\n  sax.createStream = createStream\n\n  // When we pass the MAX_BUFFER_LENGTH position, start checking for buffer overruns.\n  // When we check, schedule the next check for MAX_BUFFER_LENGTH - (max(buffer lengths)),\n  // since that's the earliest that a buffer overrun could occur.  This way, checks are\n  // as rare as required, but as often as necessary to ensure never crossing this bound.\n  // Furthermore, buffers are only tested at most once per write(), so passing a very\n  // large string into write() might have undesirable effects, but this is manageable by\n  // the caller, so it is assumed to be safe.  Thus, a call to write() may, in the extreme\n  // edge case, result in creating at most one complete copy of the string passed in.\n  // Set to Infinity to have unlimited buffers.\n  sax.MAX_BUFFER_LENGTH = 64 * 1024\n\n  var buffers = [\n    'comment', 'sgmlDecl', 'textNode', 'tagName', 'doctype',\n    'procInstName', 'procInstBody', 'entity', 'attribName',\n    'attribValue', 'cdata', 'script'\n  ]\n\n  sax.EVENTS = [\n    'text',\n    'processinginstruction',\n    'sgmldeclaration',\n    'doctype',\n    'comment',\n    'opentagstart',\n    'attribute',\n    'opentag',\n    'closetag',\n    'opencdata',\n    'cdata',\n    'closecdata',\n    'error',\n    'end',\n    'ready',\n    'script',\n    'opennamespace',\n    'closenamespace'\n  ]\n\n  function SAXParser (strict, opt) {\n    if (!(this instanceof SAXParser)) {\n      return new SAXParser(strict, opt)\n    }\n\n    var parser = this\n    clearBuffers(parser)\n    parser.q = parser.c = ''\n    parser.bufferCheckPosition = sax.MAX_BUFFER_LENGTH\n    parser.opt = opt || {}\n    parser.opt.lowercase = parser.opt.lowercase || parser.opt.lowercasetags\n    parser.looseCase = parser.opt.lowercase ? 'toLowerCase' : 'toUpperCase'\n    parser.tags = []\n    parser.closed = parser.closedRoot = parser.sawRoot = false\n    parser.tag = parser.error = null\n    parser.strict = !!strict\n    parser.noscript = !!(strict || parser.opt.noscript)\n    parser.state = S.BEGIN\n    parser.strictEntities = parser.opt.strictEntities\n    parser.ENTITIES = parser.strictEntities ? Object.create(sax.XML_ENTITIES) : Object.create(sax.ENTITIES)\n    parser.attribList = []\n\n    // namespaces form a prototype chain.\n    // it always points at the current tag,\n    // which protos to its parent tag.\n    if (parser.opt.xmlns) {\n      parser.ns = Object.create(rootNS)\n    }\n\n    // mostly just for error reporting\n    parser.trackPosition = parser.opt.position !== false\n    if (parser.trackPosition) {\n      parser.position = parser.line = parser.column = 0\n    }\n    emit(parser, 'onready')\n  }\n\n  if (!Object.create) {\n    Object.create = function (o) {\n      function F () {}\n      F.prototype = o\n      var newf = new F()\n      return newf\n    }\n  }\n\n  if (!Object.keys) {\n    Object.keys = function (o) {\n      var a = []\n      for (var i in o) if (o.hasOwnProperty(i)) a.push(i)\n      return a\n    }\n  }\n\n  function checkBufferLength (parser) {\n    var maxAllowed = Math.max(sax.MAX_BUFFER_LENGTH, 10)\n    var maxActual = 0\n    for (var i = 0, l = buffers.length; i < l; i++) {\n      var len = parser[buffers[i]].length\n      if (len > maxAllowed) {\n        // Text/cdata nodes can get big, and since they're buffered,\n        // we can get here under normal conditions.\n        // Avoid issues by emitting the text node now,\n        // so at least it won't get any bigger.\n        switch (buffers[i]) {\n          case 'textNode':\n            closeText(parser)\n            break\n\n          case 'cdata':\n            emitNode(parser, 'oncdata', parser.cdata)\n            parser.cdata = ''\n            break\n\n          case 'script':\n            emitNode(parser, 'onscript', parser.script)\n            parser.script = ''\n            break\n\n          default:\n            error(parser, 'Max buffer length exceeded: ' + buffers[i])\n        }\n      }\n      maxActual = Math.max(maxActual, len)\n    }\n    // schedule the next check for the earliest possible buffer overrun.\n    var m = sax.MAX_BUFFER_LENGTH - maxActual\n    parser.bufferCheckPosition = m + parser.position\n  }\n\n  function clearBuffers (parser) {\n    for (var i = 0, l = buffers.length; i < l; i++) {\n      parser[buffers[i]] = ''\n    }\n  }\n\n  function flushBuffers (parser) {\n    closeText(parser)\n    if (parser.cdata !== '') {\n      emitNode(parser, 'oncdata', parser.cdata)\n      parser.cdata = ''\n    }\n    if (parser.script !== '') {\n      emitNode(parser, 'onscript', parser.script)\n      parser.script = ''\n    }\n  }\n\n  SAXParser.prototype = {\n    end: function () { end(this) },\n    write: write,\n    resume: function () { this.error = null; return this },\n    close: function () { return this.write(null) },\n    flush: function () { flushBuffers(this) }\n  }\n\n  var Stream\n  try {\n    Stream = require('stream').Stream\n  } catch (ex) {\n    Stream = function () {}\n  }\n\n  var streamWraps = sax.EVENTS.filter(function (ev) {\n    return ev !== 'error' && ev !== 'end'\n  })\n\n  function createStream (strict, opt) {\n    return new SAXStream(strict, opt)\n  }\n\n  function SAXStream (strict, opt) {\n    if (!(this instanceof SAXStream)) {\n      return new SAXStream(strict, opt)\n    }\n\n    Stream.apply(this)\n\n    this._parser = new SAXParser(strict, opt)\n    this.writable = true\n    this.readable = true\n\n    var me = this\n\n    this._parser.onend = function () {\n      me.emit('end')\n    }\n\n    this._parser.onerror = function (er) {\n      me.emit('error', er)\n\n      // if didn't throw, then means error was handled.\n      // go ahead and clear error, so we can write again.\n      me._parser.error = null\n    }\n\n    this._decoder = null\n\n    streamWraps.forEach(function (ev) {\n      Object.defineProperty(me, 'on' + ev, {\n        get: function () {\n          return me._parser['on' + ev]\n        },\n        set: function (h) {\n          if (!h) {\n            me.removeAllListeners(ev)\n            me._parser['on' + ev] = h\n            return h\n          }\n          me.on(ev, h)\n        },\n        enumerable: true,\n        configurable: false\n      })\n    })\n  }\n\n  SAXStream.prototype = Object.create(Stream.prototype, {\n    constructor: {\n      value: SAXStream\n    }\n  })\n\n  SAXStream.prototype.write = function (data) {\n    if (typeof Buffer === 'function' &&\n      typeof Buffer.isBuffer === 'function' &&\n      Buffer.isBuffer(data)) {\n      if (!this._decoder) {\n        var SD = require('string_decoder').StringDecoder\n        this._decoder = new SD('utf8')\n      }\n      data = this._decoder.write(data)\n    }\n\n    this._parser.write(data.toString())\n    this.emit('data', data)\n    return true\n  }\n\n  SAXStream.prototype.end = function (chunk) {\n    if (chunk && chunk.length) {\n      this.write(chunk)\n    }\n    this._parser.end()\n    return true\n  }\n\n  SAXStream.prototype.on = function (ev, handler) {\n    var me = this\n    if (!me._parser['on' + ev] && streamWraps.indexOf(ev) !== -1) {\n      me._parser['on' + ev] = function () {\n        var args = arguments.length === 1 ? [arguments[0]] : Array.apply(null, arguments)\n        args.splice(0, 0, ev)\n        me.emit.apply(me, args)\n      }\n    }\n\n    return Stream.prototype.on.call(me, ev, handler)\n  }\n\n  // character classes and tokens\n  var whitespace = '\\r\\n\\t '\n\n  // this really needs to be replaced with character classes.\n  // XML allows all manner of ridiculous numbers and digits.\n  var number = '0124356789'\n  var letter = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ'\n\n  // (Letter | \"_\" | \":\")\n  var quote = '\\'\"'\n  var attribEnd = whitespace + '>'\n  var CDATA = '[CDATA['\n  var DOCTYPE = 'DOCTYPE'\n  var XML_NAMESPACE = 'http://www.w3.org/XML/1998/namespace'\n  var XMLNS_NAMESPACE = 'http://www.w3.org/2000/xmlns/'\n  var rootNS = { xml: XML_NAMESPACE, xmlns: XMLNS_NAMESPACE }\n\n  // turn all the string character sets into character class objects.\n  whitespace = charClass(whitespace)\n  number = charClass(number)\n  letter = charClass(letter)\n\n  // http://www.w3.org/TR/REC-xml/#NT-NameStartChar\n  // This implementation works on strings, a single character at a time\n  // as such, it cannot ever support astral-plane characters (10000-EFFFF)\n  // without a significant breaking change to either this  parser, or the\n  // JavaScript language.  Implementation of an emoji-capable xml parser\n  // is left as an exercise for the reader.\n  var nameStart = /[:_A-Za-z\\u00C0-\\u00D6\\u00D8-\\u00F6\\u00F8-\\u02FF\\u0370-\\u037D\\u037F-\\u1FFF\\u200C-\\u200D\\u2070-\\u218F\\u2C00-\\u2FEF\\u3001-\\uD7FF\\uF900-\\uFDCF\\uFDF0-\\uFFFD]/\n\n  var nameBody = /[:_A-Za-z\\u00C0-\\u00D6\\u00D8-\\u00F6\\u00F8-\\u02FF\\u0370-\\u037D\\u037F-\\u1FFF\\u200C-\\u200D\\u2070-\\u218F\\u2C00-\\u2FEF\\u3001-\\uD7FF\\uF900-\\uFDCF\\uFDF0-\\uFFFD\\u00B7\\u0300-\\u036F\\u203F-\\u2040\\.\\d-]/\n\n  var entityStart = /[#:_A-Za-z\\u00C0-\\u00D6\\u00D8-\\u00F6\\u00F8-\\u02FF\\u0370-\\u037D\\u037F-\\u1FFF\\u200C-\\u200D\\u2070-\\u218F\\u2C00-\\u2FEF\\u3001-\\uD7FF\\uF900-\\uFDCF\\uFDF0-\\uFFFD]/\n  var entityBody = /[#:_A-Za-z\\u00C0-\\u00D6\\u00D8-\\u00F6\\u00F8-\\u02FF\\u0370-\\u037D\\u037F-\\u1FFF\\u200C-\\u200D\\u2070-\\u218F\\u2C00-\\u2FEF\\u3001-\\uD7FF\\uF900-\\uFDCF\\uFDF0-\\uFFFD\\u00B7\\u0300-\\u036F\\u203F-\\u2040\\.\\d-]/\n\n  quote = charClass(quote)\n  attribEnd = charClass(attribEnd)\n\n  function charClass (str) {\n    return str.split('').reduce(function (s, c) {\n      s[c] = true\n      return s\n    }, {})\n  }\n\n  function isRegExp (c) {\n    return Object.prototype.toString.call(c) === '[object RegExp]'\n  }\n\n  function is (charclass, c) {\n    return isRegExp(charclass) ? !!c.match(charclass) : charclass[c]\n  }\n\n  function not (charclass, c) {\n    return !is(charclass, c)\n  }\n\n  var S = 0\n  sax.STATE = {\n    BEGIN: S++, // leading byte order mark or whitespace\n    BEGIN_WHITESPACE: S++, // leading whitespace\n    TEXT: S++, // general stuff\n    TEXT_ENTITY: S++, // &amp and such.\n    OPEN_WAKA: S++, // <\n    SGML_DECL: S++, // <!BLARG\n    SGML_DECL_QUOTED: S++, // <!BLARG foo \"bar\n    DOCTYPE: S++, // <!DOCTYPE\n    DOCTYPE_QUOTED: S++, // <!DOCTYPE \"//blah\n    DOCTYPE_DTD: S++, // <!DOCTYPE \"//blah\" [ ...\n    DOCTYPE_DTD_QUOTED: S++, // <!DOCTYPE \"//blah\" [ \"foo\n    COMMENT_STARTING: S++, // <!-\n    COMMENT: S++, // <!--\n    COMMENT_ENDING: S++, // <!-- blah -\n    COMMENT_ENDED: S++, // <!-- blah --\n    CDATA: S++, // <![CDATA[ something\n    CDATA_ENDING: S++, // ]\n    CDATA_ENDING_2: S++, // ]]\n    PROC_INST: S++, // <?hi\n    PROC_INST_BODY: S++, // <?hi there\n    PROC_INST_ENDING: S++, // <?hi \"there\" ?\n    OPEN_TAG: S++, // <strong\n    OPEN_TAG_SLASH: S++, // <strong /\n    ATTRIB: S++, // <a\n    ATTRIB_NAME: S++, // <a foo\n    ATTRIB_NAME_SAW_WHITE: S++, // <a foo _\n    ATTRIB_VALUE: S++, // <a foo=\n    ATTRIB_VALUE_QUOTED: S++, // <a foo=\"bar\n    ATTRIB_VALUE_CLOSED: S++, // <a foo=\"bar\"\n    ATTRIB_VALUE_UNQUOTED: S++, // <a foo=bar\n    ATTRIB_VALUE_ENTITY_Q: S++, // <foo bar=\"&quot;\"\n    ATTRIB_VALUE_ENTITY_U: S++, // <foo bar=&quot\n    CLOSE_TAG: S++, // </a\n    CLOSE_TAG_SAW_WHITE: S++, // </a   >\n    SCRIPT: S++, // <script> ...\n    SCRIPT_ENDING: S++ // <script> ... <\n  }\n\n  sax.XML_ENTITIES = {\n    'amp': '&',\n    'gt': '>',\n    'lt': '<',\n    'quot': '\"',\n    'apos': \"'\"\n  }\n\n  sax.ENTITIES = {\n    'amp': '&',\n    'gt': '>',\n    'lt': '<',\n    'quot': '\"',\n    'apos': \"'\",\n    'AElig': 198,\n    'Aacute': 193,\n    'Acirc': 194,\n    'Agrave': 192,\n    'Aring': 197,\n    'Atilde': 195,\n    'Auml': 196,\n    'Ccedil': 199,\n    'ETH': 208,\n    'Eacute': 201,\n    'Ecirc': 202,\n    'Egrave': 200,\n    'Euml': 203,\n    'Iacute': 205,\n    'Icirc': 206,\n    'Igrave': 204,\n    'Iuml': 207,\n    'Ntilde': 209,\n    'Oacute': 211,\n    'Ocirc': 212,\n    'Ograve': 210,\n    'Oslash': 216,\n    'Otilde': 213,\n    'Ouml': 214,\n    'THORN': 222,\n    'Uacute': 218,\n    'Ucirc': 219,\n    'Ugrave': 217,\n    'Uuml': 220,\n    'Yacute': 221,\n    'aacute': 225,\n    'acirc': 226,\n    'aelig': 230,\n    'agrave': 224,\n    'aring': 229,\n    'atilde': 227,\n    'auml': 228,\n    'ccedil': 231,\n    'eacute': 233,\n    'ecirc': 234,\n    'egrave': 232,\n    'eth': 240,\n    'euml': 235,\n    'iacute': 237,\n    'icirc': 238,\n    'igrave': 236,\n    'iuml': 239,\n    'ntilde': 241,\n    'oacute': 243,\n    'ocirc': 244,\n    'ograve': 242,\n    'oslash': 248,\n    'otilde': 245,\n    'ouml': 246,\n    'szlig': 223,\n    'thorn': 254,\n    'uacute': 250,\n    'ucirc': 251,\n    'ugrave': 249,\n    'uuml': 252,\n    'yacute': 253,\n    'yuml': 255,\n    'copy': 169,\n    'reg': 174,\n    'nbsp': 160,\n    'iexcl': 161,\n    'cent': 162,\n    'pound': 163,\n    'curren': 164,\n    'yen': 165,\n    'brvbar': 166,\n    'sect': 167,\n    'uml': 168,\n    'ordf': 170,\n    'laquo': 171,\n    'not': 172,\n    'shy': 173,\n    'macr': 175,\n    'deg': 176,\n    'plusmn': 177,\n    'sup1': 185,\n    'sup2': 178,\n    'sup3': 179,\n    'acute': 180,\n    'micro': 181,\n    'para': 182,\n    'middot': 183,\n    'cedil': 184,\n    'ordm': 186,\n    'raquo': 187,\n    'frac14': 188,\n    'frac12': 189,\n    'frac34': 190,\n    'iquest': 191,\n    'times': 215,\n    'divide': 247,\n    'OElig': 338,\n    'oelig': 339,\n    'Scaron': 352,\n    'scaron': 353,\n    'Yuml': 376,\n    'fnof': 402,\n    'circ': 710,\n    'tilde': 732,\n    'Alpha': 913,\n    'Beta': 914,\n    'Gamma': 915,\n    'Delta': 916,\n    'Epsilon': 917,\n    'Zeta': 918,\n    'Eta': 919,\n    'Theta': 920,\n    'Iota': 921,\n    'Kappa': 922,\n    'Lambda': 923,\n    'Mu': 924,\n    'Nu': 925,\n    'Xi': 926,\n    'Omicron': 927,\n    'Pi': 928,\n    'Rho': 929,\n    'Sigma': 931,\n    'Tau': 932,\n    'Upsilon': 933,\n    'Phi': 934,\n    'Chi': 935,\n    'Psi': 936,\n    'Omega': 937,\n    'alpha': 945,\n    'beta': 946,\n    'gamma': 947,\n    'delta': 948,\n    'epsilon': 949,\n    'zeta': 950,\n    'eta': 951,\n    'theta': 952,\n    'iota': 953,\n    'kappa': 954,\n    'lambda': 955,\n    'mu': 956,\n    'nu': 957,\n    'xi': 958,\n    'omicron': 959,\n    'pi': 960,\n    'rho': 961,\n    'sigmaf': 962,\n    'sigma': 963,\n    'tau': 964,\n    'upsilon': 965,\n    'phi': 966,\n    'chi': 967,\n    'psi': 968,\n    'omega': 969,\n    'thetasym': 977,\n    'upsih': 978,\n    'piv': 982,\n    'ensp': 8194,\n    'emsp': 8195,\n    'thinsp': 8201,\n    'zwnj': 8204,\n    'zwj': 8205,\n    'lrm': 8206,\n    'rlm': 8207,\n    'ndash': 8211,\n    'mdash': 8212,\n    'lsquo': 8216,\n    'rsquo': 8217,\n    'sbquo': 8218,\n    'ldquo': 8220,\n    'rdquo': 8221,\n    'bdquo': 8222,\n    'dagger': 8224,\n    'Dagger': 8225,\n    'bull': 8226,\n    'hellip': 8230,\n    'permil': 8240,\n    'prime': 8242,\n    'Prime': 8243,\n    'lsaquo': 8249,\n    'rsaquo': 8250,\n    'oline': 8254,\n    'frasl': 8260,\n    'euro': 8364,\n    'image': 8465,\n    'weierp': 8472,\n    'real': 8476,\n    'trade': 8482,\n    'alefsym': 8501,\n    'larr': 8592,\n    'uarr': 8593,\n    'rarr': 8594,\n    'darr': 8595,\n    'harr': 8596,\n    'crarr': 8629,\n    'lArr': 8656,\n    'uArr': 8657,\n    'rArr': 8658,\n    'dArr': 8659,\n    'hArr': 8660,\n    'forall': 8704,\n    'part': 8706,\n    'exist': 8707,\n    'empty': 8709,\n    'nabla': 8711,\n    'isin': 8712,\n    'notin': 8713,\n    'ni': 8715,\n    'prod': 8719,\n    'sum': 8721,\n    'minus': 8722,\n    'lowast': 8727,\n    'radic': 8730,\n    'prop': 8733,\n    'infin': 8734,\n    'ang': 8736,\n    'and': 8743,\n    'or': 8744,\n    'cap': 8745,\n    'cup': 8746,\n    'int': 8747,\n    'there4': 8756,\n    'sim': 8764,\n    'cong': 8773,\n    'asymp': 8776,\n    'ne': 8800,\n    'equiv': 8801,\n    'le': 8804,\n    'ge': 8805,\n    'sub': 8834,\n    'sup': 8835,\n    'nsub': 8836,\n    'sube': 8838,\n    'supe': 8839,\n    'oplus': 8853,\n    'otimes': 8855,\n    'perp': 8869,\n    'sdot': 8901,\n    'lceil': 8968,\n    'rceil': 8969,\n    'lfloor': 8970,\n    'rfloor': 8971,\n    'lang': 9001,\n    'rang': 9002,\n    'loz': 9674,\n    'spades': 9824,\n    'clubs': 9827,\n    'hearts': 9829,\n    'diams': 9830\n  }\n\n  Object.keys(sax.ENTITIES).forEach(function (key) {\n    var e = sax.ENTITIES[key]\n    var s = typeof e === 'number' ? String.fromCharCode(e) : e\n    sax.ENTITIES[key] = s\n  })\n\n  for (var s in sax.STATE) {\n    sax.STATE[sax.STATE[s]] = s\n  }\n\n  // shorthand\n  S = sax.STATE\n\n  function emit (parser, event, data) {\n    parser[event] && parser[event](data)\n  }\n\n  function emitNode (parser, nodeType, data) {\n    if (parser.textNode) closeText(parser)\n    emit(parser, nodeType, data)\n  }\n\n  function closeText (parser) {\n    parser.textNode = textopts(parser.opt, parser.textNode)\n    if (parser.textNode) emit(parser, 'ontext', parser.textNode)\n    parser.textNode = ''\n  }\n\n  function textopts (opt, text) {\n    if (opt.trim) text = text.trim()\n    if (opt.normalize) text = text.replace(/\\s+/g, ' ')\n    return text\n  }\n\n  function error (parser, er) {\n    closeText(parser)\n    if (parser.trackPosition) {\n      er += '\\nLine: ' + parser.line +\n        '\\nColumn: ' + parser.column +\n        '\\nChar: ' + parser.c\n    }\n    er = new Error(er)\n    parser.error = er\n    emit(parser, 'onerror', er)\n    return parser\n  }\n\n  function end (parser) {\n    if (parser.sawRoot && !parser.closedRoot) strictFail(parser, 'Unclosed root tag')\n    if ((parser.state !== S.BEGIN) &&\n      (parser.state !== S.BEGIN_WHITESPACE) &&\n      (parser.state !== S.TEXT)) {\n      error(parser, 'Unexpected end')\n    }\n    closeText(parser)\n    parser.c = ''\n    parser.closed = true\n    emit(parser, 'onend')\n    SAXParser.call(parser, parser.strict, parser.opt)\n    return parser\n  }\n\n  function strictFail (parser, message) {\n    if (typeof parser !== 'object' || !(parser instanceof SAXParser)) {\n      throw new Error('bad call to strictFail')\n    }\n    if (parser.strict) {\n      error(parser, message)\n    }\n  }\n\n  function newTag (parser) {\n    if (!parser.strict) parser.tagName = parser.tagName[parser.looseCase]()\n    var parent = parser.tags[parser.tags.length - 1] || parser\n    var tag = parser.tag = { name: parser.tagName, attributes: {} }\n\n    // will be overridden if tag contails an xmlns=\"foo\" or xmlns:foo=\"bar\"\n    if (parser.opt.xmlns) {\n      tag.ns = parent.ns\n    }\n    parser.attribList.length = 0\n    emitNode(parser, 'onopentagstart', tag)\n  }\n\n  function qname (name, attribute) {\n    var i = name.indexOf(':')\n    var qualName = i < 0 ? [ '', name ] : name.split(':')\n    var prefix = qualName[0]\n    var local = qualName[1]\n\n    // <x \"xmlns\"=\"http://foo\">\n    if (attribute && name === 'xmlns') {\n      prefix = 'xmlns'\n      local = ''\n    }\n\n    return { prefix: prefix, local: local }\n  }\n\n  function attrib (parser) {\n    if (!parser.strict) {\n      parser.attribName = parser.attribName[parser.looseCase]()\n    }\n\n    if (parser.attribList.indexOf(parser.attribName) !== -1 ||\n      parser.tag.attributes.hasOwnProperty(parser.attribName)) {\n      parser.attribName = parser.attribValue = ''\n      return\n    }\n\n    if (parser.opt.xmlns) {\n      var qn = qname(parser.attribName, true)\n      var prefix = qn.prefix\n      var local = qn.local\n\n      if (prefix === 'xmlns') {\n        // namespace binding attribute. push the binding into scope\n        if (local === 'xml' && parser.attribValue !== XML_NAMESPACE) {\n          strictFail(parser,\n            'xml: prefix must be bound to ' + XML_NAMESPACE + '\\n' +\n            'Actual: ' + parser.attribValue)\n        } else if (local === 'xmlns' && parser.attribValue !== XMLNS_NAMESPACE) {\n          strictFail(parser,\n            'xmlns: prefix must be bound to ' + XMLNS_NAMESPACE + '\\n' +\n            'Actual: ' + parser.attribValue)\n        } else {\n          var tag = parser.tag\n          var parent = parser.tags[parser.tags.length - 1] || parser\n          if (tag.ns === parent.ns) {\n            tag.ns = Object.create(parent.ns)\n          }\n          tag.ns[local] = parser.attribValue\n        }\n      }\n\n      // defer onattribute events until all attributes have been seen\n      // so any new bindings can take effect. preserve attribute order\n      // so deferred events can be emitted in document order\n      parser.attribList.push([parser.attribName, parser.attribValue])\n    } else {\n      // in non-xmlns mode, we can emit the event right away\n      parser.tag.attributes[parser.attribName] = parser.attribValue\n      emitNode(parser, 'onattribute', {\n        name: parser.attribName,\n        value: parser.attribValue\n      })\n    }\n\n    parser.attribName = parser.attribValue = ''\n  }\n\n  function openTag (parser, selfClosing) {\n    if (parser.opt.xmlns) {\n      // emit namespace binding events\n      var tag = parser.tag\n\n      // add namespace info to tag\n      var qn = qname(parser.tagName)\n      tag.prefix = qn.prefix\n      tag.local = qn.local\n      tag.uri = tag.ns[qn.prefix] || ''\n\n      if (tag.prefix && !tag.uri) {\n        strictFail(parser, 'Unbound namespace prefix: ' +\n          JSON.stringify(parser.tagName))\n        tag.uri = qn.prefix\n      }\n\n      var parent = parser.tags[parser.tags.length - 1] || parser\n      if (tag.ns && parent.ns !== tag.ns) {\n        Object.keys(tag.ns).forEach(function (p) {\n          emitNode(parser, 'onopennamespace', {\n            prefix: p,\n            uri: tag.ns[p]\n          })\n        })\n      }\n\n      // handle deferred onattribute events\n      // Note: do not apply default ns to attributes:\n      //   http://www.w3.org/TR/REC-xml-names/#defaulting\n      for (var i = 0, l = parser.attribList.length; i < l; i++) {\n        var nv = parser.attribList[i]\n        var name = nv[0]\n        var value = nv[1]\n        var qualName = qname(name, true)\n        var prefix = qualName.prefix\n        var local = qualName.local\n        var uri = prefix === '' ? '' : (tag.ns[prefix] || '')\n        var a = {\n          name: name,\n          value: value,\n          prefix: prefix,\n          local: local,\n          uri: uri\n        }\n\n        // if there's any attributes with an undefined namespace,\n        // then fail on them now.\n        if (prefix && prefix !== 'xmlns' && !uri) {\n          strictFail(parser, 'Unbound namespace prefix: ' +\n            JSON.stringify(prefix))\n          a.uri = prefix\n        }\n        parser.tag.attributes[name] = a\n        emitNode(parser, 'onattribute', a)\n      }\n      parser.attribList.length = 0\n    }\n\n    parser.tag.isSelfClosing = !!selfClosing\n\n    // process the tag\n    parser.sawRoot = true\n    parser.tags.push(parser.tag)\n    emitNode(parser, 'onopentag', parser.tag)\n    if (!selfClosing) {\n      // special case for <script> in non-strict mode.\n      if (!parser.noscript && parser.tagName.toLowerCase() === 'script') {\n        parser.state = S.SCRIPT\n      } else {\n        parser.state = S.TEXT\n      }\n      parser.tag = null\n      parser.tagName = ''\n    }\n    parser.attribName = parser.attribValue = ''\n    parser.attribList.length = 0\n  }\n\n  function closeTag (parser) {\n    if (!parser.tagName) {\n      strictFail(parser, 'Weird empty close tag.')\n      parser.textNode += '</>'\n      parser.state = S.TEXT\n      return\n    }\n\n    if (parser.script) {\n      if (parser.tagName !== 'script') {\n        parser.script += '</' + parser.tagName + '>'\n        parser.tagName = ''\n        parser.state = S.SCRIPT\n        return\n      }\n      emitNode(parser, 'onscript', parser.script)\n      parser.script = ''\n    }\n\n    // first make sure that the closing tag actually exists.\n    // <a><b></c></b></a> will close everything, otherwise.\n    var t = parser.tags.length\n    var tagName = parser.tagName\n    if (!parser.strict) {\n      tagName = tagName[parser.looseCase]()\n    }\n    var closeTo = tagName\n    while (t--) {\n      var close = parser.tags[t]\n      if (close.name !== closeTo) {\n        // fail the first time in strict mode\n        strictFail(parser, 'Unexpected close tag')\n      } else {\n        break\n      }\n    }\n\n    // didn't find it.  we already failed for strict, so just abort.\n    if (t < 0) {\n      strictFail(parser, 'Unmatched closing tag: ' + parser.tagName)\n      parser.textNode += '</' + parser.tagName + '>'\n      parser.state = S.TEXT\n      return\n    }\n    parser.tagName = tagName\n    var s = parser.tags.length\n    while (s-- > t) {\n      var tag = parser.tag = parser.tags.pop()\n      parser.tagName = parser.tag.name\n      emitNode(parser, 'onclosetag', parser.tagName)\n\n      var x = {}\n      for (var i in tag.ns) {\n        x[i] = tag.ns[i]\n      }\n\n      var parent = parser.tags[parser.tags.length - 1] || parser\n      if (parser.opt.xmlns && tag.ns !== parent.ns) {\n        // remove namespace bindings introduced by tag\n        Object.keys(tag.ns).forEach(function (p) {\n          var n = tag.ns[p]\n          emitNode(parser, 'onclosenamespace', { prefix: p, uri: n })\n        })\n      }\n    }\n    if (t === 0) parser.closedRoot = true\n    parser.tagName = parser.attribValue = parser.attribName = ''\n    parser.attribList.length = 0\n    parser.state = S.TEXT\n  }\n\n  function parseEntity (parser) {\n    var entity = parser.entity\n    var entityLC = entity.toLowerCase()\n    var num\n    var numStr = ''\n\n    if (parser.ENTITIES[entity]) {\n      return parser.ENTITIES[entity]\n    }\n    if (parser.ENTITIES[entityLC]) {\n      return parser.ENTITIES[entityLC]\n    }\n    entity = entityLC\n    if (entity.charAt(0) === '#') {\n      if (entity.charAt(1) === 'x') {\n        entity = entity.slice(2)\n        num = parseInt(entity, 16)\n        numStr = num.toString(16)\n      } else {\n        entity = entity.slice(1)\n        num = parseInt(entity, 10)\n        numStr = num.toString(10)\n      }\n    }\n    entity = entity.replace(/^0+/, '')\n    if (numStr.toLowerCase() !== entity) {\n      strictFail(parser, 'Invalid character entity')\n      return '&' + parser.entity + ';'\n    }\n\n    return String.fromCodePoint(num)\n  }\n\n  function beginWhiteSpace (parser, c) {\n    if (c === '<') {\n      parser.state = S.OPEN_WAKA\n      parser.startTagPosition = parser.position\n    } else if (not(whitespace, c)) {\n      // have to process this as a text node.\n      // weird, but happens.\n      strictFail(parser, 'Non-whitespace before first tag.')\n      parser.textNode = c\n      parser.state = S.TEXT\n    }\n  }\n\n  function charAt (chunk, i) {\n    var result = ''\n    if (i < chunk.length) {\n      result = chunk.charAt(i)\n    }\n    return result\n  }\n\n  function write (chunk) {\n    var parser = this\n    if (this.error) {\n      throw this.error\n    }\n    if (parser.closed) {\n      return error(parser,\n        'Cannot write after close. Assign an onready handler.')\n    }\n    if (chunk === null) {\n      return end(parser)\n    }\n    if (typeof chunk === 'object') {\n      chunk = chunk.toString()\n    }\n    var i = 0\n    var c = ''\n    while (true) {\n      c = charAt(chunk, i++)\n      parser.c = c\n      if (!c) {\n        break\n      }\n      if (parser.trackPosition) {\n        parser.position++\n        if (c === '\\n') {\n          parser.line++\n          parser.column = 0\n        } else {\n          parser.column++\n        }\n      }\n      switch (parser.state) {\n        case S.BEGIN:\n          parser.state = S.BEGIN_WHITESPACE\n          if (c === '\\uFEFF') {\n            continue\n          }\n          beginWhiteSpace(parser, c)\n          continue\n\n        case S.BEGIN_WHITESPACE:\n          beginWhiteSpace(parser, c)\n          continue\n\n        case S.TEXT:\n          if (parser.sawRoot && !parser.closedRoot) {\n            var starti = i - 1\n            while (c && c !== '<' && c !== '&') {\n              c = charAt(chunk, i++)\n              if (c && parser.trackPosition) {\n                parser.position++\n                if (c === '\\n') {\n                  parser.line++\n                  parser.column = 0\n                } else {\n                  parser.column++\n                }\n              }\n            }\n            parser.textNode += chunk.substring(starti, i - 1)\n          }\n          if (c === '<' && !(parser.sawRoot && parser.closedRoot && !parser.strict)) {\n            parser.state = S.OPEN_WAKA\n            parser.startTagPosition = parser.position\n          } else {\n            if (not(whitespace, c) && (!parser.sawRoot || parser.closedRoot)) {\n              strictFail(parser, 'Text data outside of root node.')\n            }\n            if (c === '&') {\n              parser.state = S.TEXT_ENTITY\n            } else {\n              parser.textNode += c\n            }\n          }\n          continue\n\n        case S.SCRIPT:\n          // only non-strict\n          if (c === '<') {\n            parser.state = S.SCRIPT_ENDING\n          } else {\n            parser.script += c\n          }\n          continue\n\n        case S.SCRIPT_ENDING:\n          if (c === '/') {\n            parser.state = S.CLOSE_TAG\n          } else {\n            parser.script += '<' + c\n            parser.state = S.SCRIPT\n          }\n          continue\n\n        case S.OPEN_WAKA:\n          // either a /, ?, !, or text is coming next.\n          if (c === '!') {\n            parser.state = S.SGML_DECL\n            parser.sgmlDecl = ''\n          } else if (is(whitespace, c)) {\n            // wait for it...\n          } else if (is(nameStart, c)) {\n            parser.state = S.OPEN_TAG\n            parser.tagName = c\n          } else if (c === '/') {\n            parser.state = S.CLOSE_TAG\n            parser.tagName = ''\n          } else if (c === '?') {\n            parser.state = S.PROC_INST\n            parser.procInstName = parser.procInstBody = ''\n          } else {\n            strictFail(parser, 'Unencoded <')\n            // if there was some whitespace, then add that in.\n            if (parser.startTagPosition + 1 < parser.position) {\n              var pad = parser.position - parser.startTagPosition\n              c = new Array(pad).join(' ') + c\n            }\n            parser.textNode += '<' + c\n            parser.state = S.TEXT\n          }\n          continue\n\n        case S.SGML_DECL:\n          if ((parser.sgmlDecl + c).toUpperCase() === CDATA) {\n            emitNode(parser, 'onopencdata')\n            parser.state = S.CDATA\n            parser.sgmlDecl = ''\n            parser.cdata = ''\n          } else if (parser.sgmlDecl + c === '--') {\n            parser.state = S.COMMENT\n            parser.comment = ''\n            parser.sgmlDecl = ''\n          } else if ((parser.sgmlDecl + c).toUpperCase() === DOCTYPE) {\n            parser.state = S.DOCTYPE\n            if (parser.doctype || parser.sawRoot) {\n              strictFail(parser,\n                'Inappropriately located doctype declaration')\n            }\n            parser.doctype = ''\n            parser.sgmlDecl = ''\n          } else if (c === '>') {\n            emitNode(parser, 'onsgmldeclaration', parser.sgmlDecl)\n            parser.sgmlDecl = ''\n            parser.state = S.TEXT\n          } else if (is(quote, c)) {\n            parser.state = S.SGML_DECL_QUOTED\n            parser.sgmlDecl += c\n          } else {\n            parser.sgmlDecl += c\n          }\n          continue\n\n        case S.SGML_DECL_QUOTED:\n          if (c === parser.q) {\n            parser.state = S.SGML_DECL\n            parser.q = ''\n          }\n          parser.sgmlDecl += c\n          continue\n\n        case S.DOCTYPE:\n          if (c === '>') {\n            parser.state = S.TEXT\n            emitNode(parser, 'ondoctype', parser.doctype)\n            parser.doctype = true // just remember that we saw it.\n          } else {\n            parser.doctype += c\n            if (c === '[') {\n              parser.state = S.DOCTYPE_DTD\n            } else if (is(quote, c)) {\n              parser.state = S.DOCTYPE_QUOTED\n              parser.q = c\n            }\n          }\n          continue\n\n        case S.DOCTYPE_QUOTED:\n          parser.doctype += c\n          if (c === parser.q) {\n            parser.q = ''\n            parser.state = S.DOCTYPE\n          }\n          continue\n\n        case S.DOCTYPE_DTD:\n          parser.doctype += c\n          if (c === ']') {\n            parser.state = S.DOCTYPE\n          } else if (is(quote, c)) {\n            parser.state = S.DOCTYPE_DTD_QUOTED\n            parser.q = c\n          }\n          continue\n\n        case S.DOCTYPE_DTD_QUOTED:\n          parser.doctype += c\n          if (c === parser.q) {\n            parser.state = S.DOCTYPE_DTD\n            parser.q = ''\n          }\n          continue\n\n        case S.COMMENT:\n          if (c === '-') {\n            parser.state = S.COMMENT_ENDING\n          } else {\n            parser.comment += c\n          }\n          continue\n\n        case S.COMMENT_ENDING:\n          if (c === '-') {\n            parser.state = S.COMMENT_ENDED\n            parser.comment = textopts(parser.opt, parser.comment)\n            if (parser.comment) {\n              emitNode(parser, 'oncomment', parser.comment)\n            }\n            parser.comment = ''\n          } else {\n            parser.comment += '-' + c\n            parser.state = S.COMMENT\n          }\n          continue\n\n        case S.COMMENT_ENDED:\n          if (c !== '>') {\n            strictFail(parser, 'Malformed comment')\n            // allow <!-- blah -- bloo --> in non-strict mode,\n            // which is a comment of \" blah -- bloo \"\n            parser.comment += '--' + c\n            parser.state = S.COMMENT\n          } else {\n            parser.state = S.TEXT\n          }\n          continue\n\n        case S.CDATA:\n          if (c === ']') {\n            parser.state = S.CDATA_ENDING\n          } else {\n            parser.cdata += c\n          }\n          continue\n\n        case S.CDATA_ENDING:\n          if (c === ']') {\n            parser.state = S.CDATA_ENDING_2\n          } else {\n            parser.cdata += ']' + c\n            parser.state = S.CDATA\n          }\n          continue\n\n        case S.CDATA_ENDING_2:\n          if (c === '>') {\n            if (parser.cdata) {\n              emitNode(parser, 'oncdata', parser.cdata)\n            }\n            emitNode(parser, 'onclosecdata')\n            parser.cdata = ''\n            parser.state = S.TEXT\n          } else if (c === ']') {\n            parser.cdata += ']'\n          } else {\n            parser.cdata += ']]' + c\n            parser.state = S.CDATA\n          }\n          continue\n\n        case S.PROC_INST:\n          if (c === '?') {\n            parser.state = S.PROC_INST_ENDING\n          } else if (is(whitespace, c)) {\n            parser.state = S.PROC_INST_BODY\n          } else {\n            parser.procInstName += c\n          }\n          continue\n\n        case S.PROC_INST_BODY:\n          if (!parser.procInstBody && is(whitespace, c)) {\n            continue\n          } else if (c === '?') {\n            parser.state = S.PROC_INST_ENDING\n          } else {\n            parser.procInstBody += c\n          }\n          continue\n\n        case S.PROC_INST_ENDING:\n          if (c === '>') {\n            emitNode(parser, 'onprocessinginstruction', {\n              name: parser.procInstName,\n              body: parser.procInstBody\n            })\n            parser.procInstName = parser.procInstBody = ''\n            parser.state = S.TEXT\n          } else {\n            parser.procInstBody += '?' + c\n            parser.state = S.PROC_INST_BODY\n          }\n          continue\n\n        case S.OPEN_TAG:\n          if (is(nameBody, c)) {\n            parser.tagName += c\n          } else {\n            newTag(parser)\n            if (c === '>') {\n              openTag(parser)\n            } else if (c === '/') {\n              parser.state = S.OPEN_TAG_SLASH\n            } else {\n              if (not(whitespace, c)) {\n                strictFail(parser, 'Invalid character in tag name')\n              }\n              parser.state = S.ATTRIB\n            }\n          }\n          continue\n\n        case S.OPEN_TAG_SLASH:\n          if (c === '>') {\n            openTag(parser, true)\n            closeTag(parser)\n          } else {\n            strictFail(parser, 'Forward-slash in opening tag not followed by >')\n            parser.state = S.ATTRIB\n          }\n          continue\n\n        case S.ATTRIB:\n          // haven't read the attribute name yet.\n          if (is(whitespace, c)) {\n            continue\n          } else if (c === '>') {\n            openTag(parser)\n          } else if (c === '/') {\n            parser.state = S.OPEN_TAG_SLASH\n          } else if (is(nameStart, c)) {\n            parser.attribName = c\n            parser.attribValue = ''\n            parser.state = S.ATTRIB_NAME\n          } else {\n            strictFail(parser, 'Invalid attribute name')\n          }\n          continue\n\n        case S.ATTRIB_NAME:\n          if (c === '=') {\n            parser.state = S.ATTRIB_VALUE\n          } else if (c === '>') {\n            strictFail(parser, 'Attribute without value')\n            parser.attribValue = parser.attribName\n            attrib(parser)\n            openTag(parser)\n          } else if (is(whitespace, c)) {\n            parser.state = S.ATTRIB_NAME_SAW_WHITE\n          } else if (is(nameBody, c)) {\n            parser.attribName += c\n          } else {\n            strictFail(parser, 'Invalid attribute name')\n          }\n          continue\n\n        case S.ATTRIB_NAME_SAW_WHITE:\n          if (c === '=') {\n            parser.state = S.ATTRIB_VALUE\n          } else if (is(whitespace, c)) {\n            continue\n          } else {\n            strictFail(parser, 'Attribute without value')\n            parser.tag.attributes[parser.attribName] = ''\n            parser.attribValue = ''\n            emitNode(parser, 'onattribute', {\n              name: parser.attribName,\n              value: ''\n            })\n            parser.attribName = ''\n            if (c === '>') {\n              openTag(parser)\n            } else if (is(nameStart, c)) {\n              parser.attribName = c\n              parser.state = S.ATTRIB_NAME\n            } else {\n              strictFail(parser, 'Invalid attribute name')\n              parser.state = S.ATTRIB\n            }\n          }\n          continue\n\n        case S.ATTRIB_VALUE:\n          if (is(whitespace, c)) {\n            continue\n          } else if (is(quote, c)) {\n            parser.q = c\n            parser.state = S.ATTRIB_VALUE_QUOTED\n          } else {\n            strictFail(parser, 'Unquoted attribute value')\n            parser.state = S.ATTRIB_VALUE_UNQUOTED\n            parser.attribValue = c\n          }\n          continue\n\n        case S.ATTRIB_VALUE_QUOTED:\n          if (c !== parser.q) {\n            if (c === '&') {\n              parser.state = S.ATTRIB_VALUE_ENTITY_Q\n            } else {\n              parser.attribValue += c\n            }\n            continue\n          }\n          attrib(parser)\n          parser.q = ''\n          parser.state = S.ATTRIB_VALUE_CLOSED\n          continue\n\n        case S.ATTRIB_VALUE_CLOSED:\n          if (is(whitespace, c)) {\n            parser.state = S.ATTRIB\n          } else if (c === '>') {\n            openTag(parser)\n          } else if (c === '/') {\n            parser.state = S.OPEN_TAG_SLASH\n          } else if (is(nameStart, c)) {\n            strictFail(parser, 'No whitespace between attributes')\n            parser.attribName = c\n            parser.attribValue = ''\n            parser.state = S.ATTRIB_NAME\n          } else {\n            strictFail(parser, 'Invalid attribute name')\n          }\n          continue\n\n        case S.ATTRIB_VALUE_UNQUOTED:\n          if (not(attribEnd, c)) {\n            if (c === '&') {\n              parser.state = S.ATTRIB_VALUE_ENTITY_U\n            } else {\n              parser.attribValue += c\n            }\n            continue\n          }\n          attrib(parser)\n          if (c === '>') {\n            openTag(parser)\n          } else {\n            parser.state = S.ATTRIB\n          }\n          continue\n\n        case S.CLOSE_TAG:\n          if (!parser.tagName) {\n            if (is(whitespace, c)) {\n              continue\n            } else if (not(nameStart, c)) {\n              if (parser.script) {\n                parser.script += '</' + c\n                parser.state = S.SCRIPT\n              } else {\n                strictFail(parser, 'Invalid tagname in closing tag.')\n              }\n            } else {\n              parser.tagName = c\n            }\n          } else if (c === '>') {\n            closeTag(parser)\n          } else if (is(nameBody, c)) {\n            parser.tagName += c\n          } else if (parser.script) {\n            parser.script += '</' + parser.tagName\n            parser.tagName = ''\n            parser.state = S.SCRIPT\n          } else {\n            if (not(whitespace, c)) {\n              strictFail(parser, 'Invalid tagname in closing tag')\n            }\n            parser.state = S.CLOSE_TAG_SAW_WHITE\n          }\n          continue\n\n        case S.CLOSE_TAG_SAW_WHITE:\n          if (is(whitespace, c)) {\n            continue\n          }\n          if (c === '>') {\n            closeTag(parser)\n          } else {\n            strictFail(parser, 'Invalid characters in closing tag')\n          }\n          continue\n\n        case S.TEXT_ENTITY:\n        case S.ATTRIB_VALUE_ENTITY_Q:\n        case S.ATTRIB_VALUE_ENTITY_U:\n          var returnState\n          var buffer\n          switch (parser.state) {\n            case S.TEXT_ENTITY:\n              returnState = S.TEXT\n              buffer = 'textNode'\n              break\n\n            case S.ATTRIB_VALUE_ENTITY_Q:\n              returnState = S.ATTRIB_VALUE_QUOTED\n              buffer = 'attribValue'\n              break\n\n            case S.ATTRIB_VALUE_ENTITY_U:\n              returnState = S.ATTRIB_VALUE_UNQUOTED\n              buffer = 'attribValue'\n              break\n          }\n\n          if (c === ';') {\n            parser[buffer] += parseEntity(parser)\n            parser.entity = ''\n            parser.state = returnState\n          } else if (is(parser.entity.length ? entityBody : entityStart, c)) {\n            parser.entity += c\n          } else {\n            strictFail(parser, 'Invalid character in entity name')\n            parser[buffer] += '&' + parser.entity + c\n            parser.entity = ''\n            parser.state = returnState\n          }\n\n          continue\n\n        default:\n          throw new Error(parser, 'Unknown state: ' + parser.state)\n      }\n    } // while\n\n    if (parser.position >= parser.bufferCheckPosition) {\n      checkBufferLength(parser)\n    }\n    return parser\n  }\n\n  /*! http://mths.be/fromcodepoint v0.1.0 by @mathias */\n  if (!String.fromCodePoint) {\n    (function () {\n      var stringFromCharCode = String.fromCharCode\n      var floor = Math.floor\n      var fromCodePoint = function () {\n        var MAX_SIZE = 0x4000\n        var codeUnits = []\n        var highSurrogate\n        var lowSurrogate\n        var index = -1\n        var length = arguments.length\n        if (!length) {\n          return ''\n        }\n        var result = ''\n        while (++index < length) {\n          var codePoint = Number(arguments[index])\n          if (\n            !isFinite(codePoint) || // `NaN`, `+Infinity`, or `-Infinity`\n            codePoint < 0 || // not a valid Unicode code point\n            codePoint > 0x10FFFF || // not a valid Unicode code point\n            floor(codePoint) !== codePoint // not an integer\n          ) {\n            throw RangeError('Invalid code point: ' + codePoint)\n          }\n          if (codePoint <= 0xFFFF) { // BMP code point\n            codeUnits.push(codePoint)\n          } else { // Astral code point; split in surrogate halves\n            // http://mathiasbynens.be/notes/javascript-encoding#surrogate-formulae\n            codePoint -= 0x10000\n            highSurrogate = (codePoint >> 10) + 0xD800\n            lowSurrogate = (codePoint % 0x400) + 0xDC00\n            codeUnits.push(highSurrogate, lowSurrogate)\n          }\n          if (index + 1 === length || codeUnits.length > MAX_SIZE) {\n            result += stringFromCharCode.apply(null, codeUnits)\n            codeUnits.length = 0\n          }\n        }\n        return result\n      }\n      if (Object.defineProperty) {\n        Object.defineProperty(String, 'fromCodePoint', {\n          value: fromCodePoint,\n          configurable: true,\n          writable: true\n        })\n      } else {\n        String.fromCodePoint = fromCodePoint\n      }\n    }())\n  }\n})(typeof exports === 'undefined' ? this.sax = {} : exports)\n","/* \r\n * Copyright (c) 2016, Pierre-Anthony Lemieux <pal@sandflow.com>\r\n * All rights reserved.\r\n *\r\n * Redistribution and use in source and binary forms, with or without\r\n * modification, are permitted provided that the following conditions are met:\r\n *\r\n * * Redistributions of source code must retain the above copyright notice, this\r\n *   list of conditions and the following disclaimer.\r\n * * Redistributions in binary form must reproduce the above copyright notice,\r\n *   this list of conditions and the following disclaimer in the documentation\r\n *   and/or other materials provided with the distribution.\r\n *\r\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS \"AS IS\"\r\n * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE\r\n * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE\r\n * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE\r\n * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR\r\n * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF\r\n * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS\r\n * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN\r\n * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\r\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\r\n * POSSIBILITY OF SUCH DAMAGE.\r\n */\r\n\r\n/**\r\n * @module imscStyles\r\n */\r\n\r\n;\r\n(function (imscStyles, imscNames, imscUtils) { // wrapper for non-node envs\r\n\r\n    function StylingAttributeDefinition(ns, name, initialValue, appliesTo, isInherit, isAnimatable, parseFunc, computeFunc) {\r\n        this.name = name;\r\n        this.ns = ns;\r\n        this.qname = ns + \" \" + name;\r\n        this.inherit = isInherit;\r\n        this.animatable = isAnimatable;\r\n        this.initial = initialValue;\r\n        this.applies = appliesTo;\r\n        this.parse = parseFunc;\r\n        this.compute = computeFunc;\r\n    }\r\n\r\n    imscStyles.all = [\r\n\r\n        new StylingAttributeDefinition(\r\n            imscNames.ns_tts,\r\n            \"backgroundColor\",\r\n            \"transparent\",\r\n            ['body', 'div', 'p', 'region', 'span'],\r\n            false,\r\n            true,\r\n            imscUtils.parseColor,\r\n            null\r\n            ),\r\n        new StylingAttributeDefinition(\r\n            imscNames.ns_tts,\r\n            \"color\",\r\n            \"white\",\r\n            ['span'],\r\n            true,\r\n            true,\r\n            imscUtils.parseColor,\r\n            null\r\n            ),\r\n        new StylingAttributeDefinition(\r\n            imscNames.ns_tts,\r\n            \"direction\",\r\n            \"ltr\",\r\n            ['p', 'span'],\r\n            true,\r\n            true,\r\n            function (str) {\r\n                return str;\r\n            },\r\n            null\r\n            ),\r\n        new StylingAttributeDefinition(\r\n            imscNames.ns_tts,\r\n            \"display\",\r\n            \"auto\",\r\n            ['body', 'div', 'p', 'region', 'span'],\r\n            false,\r\n            true,\r\n            function (str) {\r\n                return str;\r\n            },\r\n            null\r\n            ),\r\n        new StylingAttributeDefinition(\r\n            imscNames.ns_tts,\r\n            \"displayAlign\",\r\n            \"before\",\r\n            ['region'],\r\n            false,\r\n            true,\r\n            function (str) {\r\n                return str;\r\n            },\r\n            null\r\n            ),\r\n        new StylingAttributeDefinition(\r\n            imscNames.ns_tts,\r\n            \"extent\",\r\n            \"auto\",\r\n            ['tt', 'region'],\r\n            false,\r\n            true,\r\n            function (str) {\r\n\r\n                if (str === \"auto\") {\r\n\r\n                    return str;\r\n\r\n                } else {\r\n\r\n                    var s = str.split(\" \");\r\n                    if (s.length !== 2)\r\n                        return null;\r\n                    var w = imscUtils.parseLength(s[0]);\r\n                    var h = imscUtils.parseLength(s[1]);\r\n                    if (!h || !w)\r\n                        return null;\r\n                    return {'h': h, 'w': w};\r\n                }\r\n\r\n            },\r\n            function (doc, parent, element, attr, context) {\r\n\r\n                var h;\r\n                var w;\r\n\r\n                if (attr === \"auto\") {\r\n\r\n                    h = new imscUtils.ComputedLength(0, 1);\r\n\r\n                } else {\r\n\r\n                    h = imscUtils.toComputedLength(\r\n                        attr.h.value,\r\n                        attr.h.unit,\r\n                        null,\r\n                        doc.dimensions.h,\r\n                        null,\r\n                        doc.pxLength.h\r\n                        );\r\n\r\n\r\n                    if (h === null) {\r\n\r\n                        return null;\r\n\r\n                    }\r\n                }\r\n\r\n                if (attr === \"auto\") {\r\n\r\n                    w = new imscUtils.ComputedLength(1, 0);\r\n\r\n                } else {\r\n\r\n                    w = imscUtils.toComputedLength(\r\n                        attr.w.value,\r\n                        attr.w.unit,\r\n                        null,\r\n                        doc.dimensions.w,\r\n                        null,\r\n                        doc.pxLength.w\r\n                        );\r\n\r\n                    if (w === null) {\r\n\r\n                        return null;\r\n\r\n                    }\r\n\r\n                }\r\n\r\n                return {'h': h, 'w': w};\r\n            }\r\n        ),\r\n        new StylingAttributeDefinition(\r\n            imscNames.ns_tts,\r\n            \"fontFamily\",\r\n            \"default\",\r\n            ['span'],\r\n            true,\r\n            true,\r\n            function (str) {\r\n                var ffs = str.split(\",\");\r\n                var rslt = [];\r\n\r\n                for (var i in ffs) {\r\n\r\n                    if (ffs[i].charAt(0) !== \"'\" && ffs[i].charAt(0) !== '\"') {\r\n\r\n                        if (ffs[i] === \"default\") {\r\n\r\n                            /* per IMSC1 */\r\n\r\n                            rslt.push(\"monospaceSerif\");\r\n\r\n                        } else {\r\n\r\n                            rslt.push(ffs[i]);\r\n\r\n                        }\r\n\r\n                    } else {\r\n\r\n                        rslt.push(ffs[i]);\r\n\r\n                    }\r\n\r\n                }\r\n\r\n                return rslt;\r\n            },\r\n            null\r\n            ),\r\n        new StylingAttributeDefinition(\r\n            imscNames.ns_tts,\r\n            \"shear\",\r\n            \"0%\",\r\n            ['p'],\r\n            true,\r\n            true,\r\n            imscUtils.parseLength,\r\n            function (doc, parent, element, attr) {\r\n\r\n                var fs;\r\n\r\n                if (attr.unit === \"%\") {\r\n\r\n                    fs = Math.abs(attr.value) > 100 ? Math.sign(attr.value) * 100 : attr.value;\r\n\r\n                } else {\r\n\r\n                    return null;\r\n\r\n                }\r\n\r\n                return fs;\r\n            }\r\n        ),\r\n        new StylingAttributeDefinition(\r\n            imscNames.ns_tts,\r\n            \"fontSize\",\r\n            \"1c\",\r\n            ['span'],\r\n            true,\r\n            true,\r\n            imscUtils.parseLength,\r\n            function (doc, parent, element, attr, context) {\r\n\r\n                var fs;\r\n\r\n                fs = imscUtils.toComputedLength(\r\n                    attr.value,\r\n                    attr.unit,\r\n                    parent !== null ? parent.styleAttrs[imscStyles.byName.fontSize.qname] : doc.cellLength.h,\r\n                    parent !== null ? parent.styleAttrs[imscStyles.byName.fontSize.qname] : doc.cellLength.h,\r\n                    doc.cellLength.h,\r\n                    doc.pxLength.h\r\n                    );\r\n\r\n                return fs;\r\n            }\r\n        ),\r\n        new StylingAttributeDefinition(\r\n            imscNames.ns_tts,\r\n            \"fontStyle\",\r\n            \"normal\",\r\n            ['span'],\r\n            true,\r\n            true,\r\n            function (str) {\r\n                /* TODO: handle font style */\r\n\r\n                return str;\r\n            },\r\n            null\r\n            ),\r\n        new StylingAttributeDefinition(\r\n            imscNames.ns_tts,\r\n            \"fontWeight\",\r\n            \"normal\",\r\n            ['span'],\r\n            true,\r\n            true,\r\n            function (str) {\r\n                /* TODO: handle font weight */\r\n\r\n                return str;\r\n            },\r\n            null\r\n            ),\r\n        new StylingAttributeDefinition(\r\n            imscNames.ns_tts,\r\n            \"lineHeight\",\r\n            \"normal\",\r\n            ['p'],\r\n            true,\r\n            true,\r\n            function (str) {\r\n                if (str === \"normal\") {\r\n                    return str;\r\n                } else {\r\n                    return imscUtils.parseLength(str);\r\n                }\r\n            },\r\n            function (doc, parent, element, attr, context) {\r\n\r\n                var lh;\r\n\r\n                if (attr === \"normal\") {\r\n\r\n                    /* inherit normal per https://github.com/w3c/ttml1/issues/220 */\r\n\r\n                    lh = attr;\r\n\r\n                } else {\r\n\r\n                    lh = imscUtils.toComputedLength(\r\n                        attr.value,\r\n                        attr.unit,\r\n                        element.styleAttrs[imscStyles.byName.fontSize.qname],\r\n                        element.styleAttrs[imscStyles.byName.fontSize.qname],\r\n                        doc.cellLength.h,\r\n                        doc.pxLength.h\r\n                        );\r\n\r\n                    if (lh === null) {\r\n\r\n                        return null;\r\n\r\n                    }\r\n\r\n                }\r\n\r\n                /* TODO: create a Length constructor */\r\n\r\n                return lh;\r\n            }\r\n        ),\r\n        new StylingAttributeDefinition(\r\n            imscNames.ns_tts,\r\n            \"opacity\",\r\n            1.0,\r\n            ['region'],\r\n            false,\r\n            true,\r\n            parseFloat,\r\n            null\r\n            ),\r\n        new StylingAttributeDefinition(\r\n            imscNames.ns_tts,\r\n            \"origin\",\r\n            \"auto\",\r\n            ['region'],\r\n            false,\r\n            true,\r\n            function (str) {\r\n\r\n                if (str === \"auto\") {\r\n\r\n                    return str;\r\n\r\n                } else {\r\n\r\n                    var s = str.split(\" \");\r\n                    if (s.length !== 2)\r\n                        return null;\r\n                    var w = imscUtils.parseLength(s[0]);\r\n                    var h = imscUtils.parseLength(s[1]);\r\n                    if (!h || !w)\r\n                        return null;\r\n                    return {'h': h, 'w': w};\r\n                }\r\n\r\n            },\r\n            function (doc, parent, element, attr, context) {\r\n\r\n                var h;\r\n                var w;\r\n\r\n                if (attr === \"auto\") {\r\n\r\n                    h = new imscUtils.ComputedLength(0,0);\r\n\r\n                } else {\r\n\r\n                    h = imscUtils.toComputedLength(\r\n                        attr.h.value,\r\n                        attr.h.unit,\r\n                        null,\r\n                        doc.dimensions.h,\r\n                        null,\r\n                        doc.pxLength.h\r\n                        );\r\n\r\n                    if (h === null) {\r\n\r\n                        return null;\r\n\r\n                    }\r\n\r\n                }\r\n\r\n                if (attr === \"auto\") {\r\n\r\n                    w = new imscUtils.ComputedLength(0,0);\r\n\r\n                } else {\r\n\r\n                    w = imscUtils.toComputedLength(\r\n                        attr.w.value,\r\n                        attr.w.unit,\r\n                        null,\r\n                        doc.dimensions.w,\r\n                        null,\r\n                        doc.pxLength.w\r\n                        );\r\n\r\n                    if (w === null) {\r\n\r\n                        return null;\r\n\r\n                    }\r\n\r\n                }\r\n\r\n                return {'h': h, 'w': w};\r\n            }\r\n        ),\r\n        new StylingAttributeDefinition(\r\n            imscNames.ns_tts,\r\n            \"overflow\",\r\n            \"hidden\",\r\n            ['region'],\r\n            false,\r\n            true,\r\n            function (str) {\r\n                return str;\r\n            },\r\n            null\r\n            ),\r\n        new StylingAttributeDefinition(\r\n            imscNames.ns_tts,\r\n            \"padding\",\r\n            \"0px\",\r\n            ['region'],\r\n            false,\r\n            true,\r\n            function (str) {\r\n\r\n                var s = str.split(\" \");\r\n                if (s.length > 4)\r\n                    return null;\r\n                var r = [];\r\n                for (var i in s) {\r\n\r\n                    var l = imscUtils.parseLength(s[i]);\r\n                    if (!l)\r\n                        return null;\r\n                    r.push(l);\r\n                }\r\n\r\n                return r;\r\n            },\r\n            function (doc, parent, element, attr, context) {\r\n\r\n                var padding;\r\n\r\n                /* TODO: make sure we are in region */\r\n\r\n                /*\r\n                 * expand padding shortcuts to \r\n                 * [before, end, after, start]\r\n                 * \r\n                 */\r\n\r\n                if (attr.length === 1) {\r\n\r\n                    padding = [attr[0], attr[0], attr[0], attr[0]];\r\n\r\n                } else if (attr.length === 2) {\r\n\r\n                    padding = [attr[0], attr[1], attr[0], attr[1]];\r\n\r\n                } else if (attr.length === 3) {\r\n\r\n                    padding = [attr[0], attr[1], attr[2], attr[1]];\r\n\r\n                } else if (attr.length === 4) {\r\n\r\n                    padding = [attr[0], attr[1], attr[2], attr[3]];\r\n\r\n                } else {\r\n\r\n                    return null;\r\n\r\n                }\r\n\r\n                /* TODO: take into account tts:direction */\r\n\r\n                /* \r\n                 * transform [before, end, after, start] according to writingMode to \r\n                 * [top,left,bottom,right]\r\n                 * \r\n                 */\r\n\r\n                var dir = element.styleAttrs[imscStyles.byName.writingMode.qname];\r\n\r\n                if (dir === \"lrtb\" || dir === \"lr\") {\r\n\r\n                    padding = [padding[0], padding[3], padding[2], padding[1]];\r\n\r\n                } else if (dir === \"rltb\" || dir === \"rl\") {\r\n\r\n                    padding = [padding[0], padding[1], padding[2], padding[3]];\r\n\r\n                } else if (dir === \"tblr\") {\r\n\r\n                    padding = [padding[3], padding[0], padding[1], padding[2]];\r\n\r\n                } else if (dir === \"tbrl\" || dir === \"tb\") {\r\n\r\n                    padding = [padding[3], padding[2], padding[1], padding[0]];\r\n\r\n                } else {\r\n\r\n                    return null;\r\n\r\n                }\r\n\r\n                var out = [];\r\n\r\n                for (var i in padding) {\r\n\r\n                    if (padding[i].value === 0) {\r\n\r\n                        out[i] = new imscUtils.ComputedLength(0,0);\r\n\r\n                    } else {\r\n\r\n                        out[i] = imscUtils.toComputedLength(\r\n                            padding[i].value,\r\n                            padding[i].unit,\r\n                            element.styleAttrs[imscStyles.byName.fontSize.qname],\r\n                            i === \"0\" || i === \"2\" ? element.styleAttrs[imscStyles.byName.extent.qname].h : element.styleAttrs[imscStyles.byName.extent.qname].w,\r\n                            i === \"0\" || i === \"2\" ? doc.cellLength.h : doc.cellLength.w,\r\n                            i === \"0\" || i === \"2\" ? doc.pxLength.h: doc.pxLength.w\r\n                            );\r\n\r\n                        if (out[i] === null) return null;\r\n\r\n                    }\r\n                }\r\n\r\n\r\n                return out;\r\n            }\r\n        ),\r\n        new StylingAttributeDefinition(\r\n            imscNames.ns_tts,\r\n            \"position\",\r\n            \"top left\",\r\n            ['region'],\r\n            false,\r\n            true,\r\n            function (str) {\r\n\r\n                return imscUtils.parsePosition(str);\r\n\r\n            },\r\n            function (doc, parent, element, attr) {\r\n                var h;\r\n                var w;\r\n                \r\n                h = imscUtils.toComputedLength(\r\n                    attr.v.offset.value,\r\n                    attr.v.offset.unit,\r\n                    null,\r\n                    new imscUtils.ComputedLength(\r\n                        - element.styleAttrs[imscStyles.byName.extent.qname].h.rw,\r\n                        doc.dimensions.h.rh - element.styleAttrs[imscStyles.byName.extent.qname].h.rh \r\n                    ),\r\n                    null,\r\n                    doc.pxLength.h\r\n                    );\r\n\r\n                if (h === null) return null;\r\n\r\n\r\n                if (attr.v.edge === \"bottom\") {\r\n\r\n                    h = new imscUtils.ComputedLength(\r\n                        - h.rw - element.styleAttrs[imscStyles.byName.extent.qname].h.rw,\r\n                        doc.dimensions.h.rh - h.rh - element.styleAttrs[imscStyles.byName.extent.qname].h.rh\r\n                    );\r\n            \r\n                }\r\n\r\n                w = imscUtils.toComputedLength(\r\n                    attr.h.offset.value,\r\n                    attr.h.offset.unit,\r\n                    null,\r\n                    new imscUtils.ComputedLength(\r\n                        doc.dimensions.w.rw - element.styleAttrs[imscStyles.byName.extent.qname].w.rw,\r\n                        - element.styleAttrs[imscStyles.byName.extent.qname].w.rh\r\n                    ),\r\n                    null,\r\n                    doc.pxLength.w\r\n                    );\r\n\r\n                if (h === null) return null;\r\n\r\n                if (attr.h.edge === \"right\") {\r\n                    \r\n                    w = new imscUtils.ComputedLength(\r\n                        doc.dimensions.w.rw - w.rw - element.styleAttrs[imscStyles.byName.extent.qname].w.rw,\r\n                        - w.rh - element.styleAttrs[imscStyles.byName.extent.qname].w.rh\r\n                    );\r\n\r\n                }\r\n\r\n                return {'h': h, 'w': w};\r\n            }\r\n        ),\r\n        new StylingAttributeDefinition(\r\n            imscNames.ns_tts,\r\n            \"ruby\",\r\n            \"none\",\r\n            ['span'],\r\n            false,\r\n            true,\r\n            function (str) {\r\n                return str;\r\n            },\r\n            null\r\n            ),\r\n        new StylingAttributeDefinition(\r\n            imscNames.ns_tts,\r\n            \"rubyAlign\",\r\n            \"center\",\r\n            ['span'],\r\n            true,\r\n            true,\r\n            function (str) {\r\n                \r\n                if (! (str === \"center\" || str === \"spaceAround\")) {\r\n                    return null;\r\n                }\r\n                \r\n                return str;\r\n            },\r\n            null\r\n            ),\r\n        new StylingAttributeDefinition(\r\n            imscNames.ns_tts,\r\n            \"rubyPosition\",\r\n            \"outside\",\r\n            ['span'],\r\n            true,\r\n            true,\r\n            function (str) {\r\n                return str;\r\n            },\r\n            null\r\n            ),\r\n        new StylingAttributeDefinition(\r\n            imscNames.ns_tts,\r\n            \"rubyReserve\",\r\n            \"none\",\r\n            ['p'],\r\n            true,\r\n            true,\r\n            function (str) {\r\n                var s = str.split(\" \");\r\n\r\n                var r = [null, null];\r\n\r\n                if (s.length === 0 || s.length > 2)\r\n                    return null;\r\n\r\n                if (s[0] === \"none\" ||\r\n                    s[0] === \"both\" ||\r\n                    s[0] === \"after\" ||\r\n                    s[0] === \"before\" ||\r\n                    s[0] === \"outside\") {\r\n\r\n                    r[0] = s[0];\r\n\r\n                } else {\r\n\r\n                    return null;\r\n\r\n                }\r\n\r\n                if (s.length === 2 && s[0] !== \"none\") {\r\n\r\n                    var l = imscUtils.parseLength(s[1]);\r\n\r\n                    if (l) {\r\n\r\n                        r[1] = l;\r\n\r\n                    } else {\r\n\r\n                        return null;\r\n\r\n                    }\r\n\r\n                }\r\n\r\n\r\n                return r;\r\n            },\r\n            function (doc, parent, element, attr, context) {\r\n\r\n                if (attr[0] === \"none\") {\r\n\r\n                    return attr;\r\n\r\n                }\r\n\r\n                var fs = null;\r\n\r\n                if (attr[1] === null) {\r\n\r\n                    fs = new imscUtils.ComputedLength(\r\n                            element.styleAttrs[imscStyles.byName.fontSize.qname].rw * 0.5,\r\n                            element.styleAttrs[imscStyles.byName.fontSize.qname].rh * 0.5\r\n                    );\r\n\r\n                } else {\r\n\r\n                    fs = imscUtils.toComputedLength(attr[1].value,\r\n                        attr[1].unit,\r\n                        element.styleAttrs[imscStyles.byName.fontSize.qname],\r\n                        element.styleAttrs[imscStyles.byName.fontSize.qname],\r\n                        doc.cellLength.h,\r\n                        doc.pxLength.h\r\n                        );\r\n                \r\n                }\r\n\r\n                if (fs === null) return null;\r\n\r\n                return [attr[0], fs];\r\n            }\r\n        ),\r\n        new StylingAttributeDefinition(\r\n            imscNames.ns_tts,\r\n            \"showBackground\",\r\n            \"always\",\r\n            ['region'],\r\n            false,\r\n            true,\r\n            function (str) {\r\n                return str;\r\n            },\r\n            null\r\n            ),\r\n        new StylingAttributeDefinition(\r\n            imscNames.ns_tts,\r\n            \"textAlign\",\r\n            \"start\",\r\n            ['p'],\r\n            true,\r\n            true,\r\n            function (str) {\r\n                return str;\r\n            },\r\n            function (doc, parent, element, attr, context) {\r\n                /* Section 7.16.9 of XSL */\r\n\r\n                if (attr === \"left\") {\r\n\r\n                    return \"start\";\r\n\r\n                } else if (attr === \"right\") {\r\n\r\n                    return \"end\";\r\n\r\n                } else {\r\n\r\n                    return attr;\r\n\r\n                }\r\n            }\r\n        ),\r\n        new StylingAttributeDefinition(\r\n            imscNames.ns_tts,\r\n            \"textCombine\",\r\n            \"none\",\r\n            ['span'],\r\n            true,\r\n            true,\r\n            function (str) {\r\n                var s = str.split(\" \");\r\n\r\n                if (s.length === 1) {\r\n\r\n                    if (s[0] === \"none\" || s[0] === \"all\") {\r\n\r\n                        return [s[0]];\r\n\r\n                    }\r\n\r\n                }\r\n\r\n                return null;\r\n            },\r\n            null\r\n            ),\r\n        new StylingAttributeDefinition(\r\n            imscNames.ns_tts,\r\n            \"textDecoration\",\r\n            \"none\",\r\n            ['span'],\r\n            true,\r\n            true,\r\n            function (str) {\r\n                return str.split(\" \");\r\n            },\r\n            null\r\n            ),\r\n        new StylingAttributeDefinition(\r\n            imscNames.ns_tts,\r\n            \"textEmphasis\",\r\n            \"none\",\r\n            ['span'],\r\n            true,\r\n            true,\r\n            function (str) {\r\n                var e = str.split(\" \");\r\n\r\n                var rslt = {style: null, symbol: null, color: null, position: null};\r\n\r\n                for (var i in e) {\r\n\r\n                    if (e[i] === \"none\" || e[i] === \"auto\") {\r\n\r\n                        rslt.style = e[i];\r\n\r\n                    } else if (e[i] === \"filled\" ||\r\n                        e[i] === \"open\") {\r\n\r\n                        rslt.style = e[i];\r\n\r\n                    } else if (e[i] === \"circle\" ||\r\n                        e[i] === \"dot\" ||\r\n                        e[i] === \"sesame\") {\r\n\r\n                        rslt.symbol = e[i];\r\n\r\n                    } else if (e[i] === \"current\") {\r\n\r\n                        rslt.color = e[i];\r\n\r\n                    } else if (e[i] === \"outside\" || e[i] === \"before\" || e[i] === \"after\") {\r\n\r\n                        rslt.position = e[i];\r\n\r\n                    } else {\r\n\r\n                        rslt.color = imscUtils.parseColor(e[i]);\r\n\r\n                        if (rslt.color === null)\r\n                            return null;\r\n\r\n                    }\r\n                }\r\n\r\n                if (rslt.style == null && rslt.symbol == null) {\r\n\r\n                    rslt.style = \"auto\";\r\n\r\n                } else {\r\n\r\n                    rslt.symbol = rslt.symbol || \"circle\";\r\n                    rslt.style = rslt.style || \"filled\";\r\n\r\n                }\r\n\r\n                rslt.position = rslt.position || \"outside\";\r\n                rslt.color = rslt.color || \"current\";\r\n\r\n                return rslt;\r\n            },\r\n            null\r\n            ),\r\n        new StylingAttributeDefinition(\r\n            imscNames.ns_tts,\r\n            \"textOutline\",\r\n            \"none\",\r\n            ['span'],\r\n            true,\r\n            true,\r\n            function (str) {\r\n\r\n                /*\r\n                 * returns {c: <color>?, thichness: <length>} | \"none\"\r\n                 * \r\n                 */\r\n\r\n                if (str === \"none\") {\r\n\r\n                    return str;\r\n\r\n                } else {\r\n\r\n                    var r = {};\r\n                    var s = str.split(\" \");\r\n                    if (s.length === 0 || s.length > 2)\r\n                        return null;\r\n                    var c = imscUtils.parseColor(s[0]);\r\n\r\n                    r.color = c;\r\n\r\n                    if (c !== null)\r\n                        s.shift();\r\n\r\n                    if (s.length !== 1)\r\n                        return null;\r\n\r\n                    var l = imscUtils.parseLength(s[0]);\r\n\r\n                    if (!l)\r\n                        return null;\r\n\r\n                    r.thickness = l;\r\n\r\n                    return r;\r\n                }\r\n\r\n            },\r\n            function (doc, parent, element, attr, context) {\r\n\r\n                /*\r\n                 * returns {color: <color>, thickness: <norm length>}\r\n                 * \r\n                 */\r\n\r\n                if (attr === \"none\")\r\n                    return attr;\r\n\r\n                var rslt = {};\r\n\r\n                if (attr.color === null) {\r\n\r\n                    rslt.color = element.styleAttrs[imscStyles.byName.color.qname];\r\n\r\n                } else {\r\n\r\n                    rslt.color = attr.color;\r\n\r\n                }\r\n\r\n                rslt.thickness = imscUtils.toComputedLength(\r\n                    attr.thickness.value,\r\n                    attr.thickness.unit,\r\n                    element.styleAttrs[imscStyles.byName.fontSize.qname],\r\n                    element.styleAttrs[imscStyles.byName.fontSize.qname],\r\n                    doc.cellLength.h,\r\n                    doc.pxLength.h\r\n                    );\r\n\r\n                if (rslt.thickness === null)\r\n                    return null;\r\n\r\n                return rslt;\r\n            }\r\n        ),\r\n        new StylingAttributeDefinition(\r\n            imscNames.ns_tts,\r\n            \"textShadow\",\r\n            \"none\",\r\n            ['span'],\r\n            true,\r\n            true,\r\n            imscUtils.parseTextShadow,\r\n            function (doc, parent, element, attr) {\r\n\r\n                /*\r\n                 * returns [{x_off: <length>, y_off: <length>, b_radius: <length>, color: <color>}*] or \"none\"\r\n                 * \r\n                 */\r\n\r\n                if (attr === \"none\")\r\n                    return attr;\r\n\r\n                var r = [];\r\n\r\n                for (var i in attr) {\r\n\r\n                    var shadow = {};\r\n\r\n                    shadow.x_off = imscUtils.toComputedLength(\r\n                        attr[i][0].value,\r\n                        attr[i][0].unit,\r\n                        null,\r\n                        element.styleAttrs[imscStyles.byName.fontSize.qname],\r\n                        null,\r\n                        doc.pxLength.w\r\n                        );\r\n\r\n                    if (shadow.x_off === null)\r\n                        return null;\r\n\r\n                    shadow.y_off = imscUtils.toComputedLength(\r\n                        attr[i][1].value,\r\n                        attr[i][1].unit,\r\n                        null,\r\n                        element.styleAttrs[imscStyles.byName.fontSize.qname],\r\n                        null,\r\n                        doc.pxLength.h\r\n                        );\r\n\r\n                    if (shadow.y_off === null)\r\n                        return null;\r\n\r\n                    if (attr[i][2] === null) {\r\n\r\n                        shadow.b_radius = 0;\r\n\r\n                    } else {\r\n\r\n                        shadow.b_radius = imscUtils.toComputedLength(\r\n                            attr[i][2].value,\r\n                            attr[i][2].unit,\r\n                            null,\r\n                            element.styleAttrs[imscStyles.byName.fontSize.qname],\r\n                            null,\r\n                            doc.pxLength.h\r\n                            );\r\n\r\n                        if (shadow.b_radius === null)\r\n                            return null;\r\n\r\n                    }\r\n\r\n                    if (attr[i][3] === null) {\r\n\r\n                        shadow.color = element.styleAttrs[imscStyles.byName.color.qname];\r\n\r\n                    } else {\r\n\r\n                        shadow.color = attr[i][3];\r\n\r\n                    }\r\n\r\n                    r.push(shadow);\r\n\r\n                }\r\n\r\n                return r;\r\n            }\r\n        ),\r\n        new StylingAttributeDefinition(\r\n            imscNames.ns_tts,\r\n            \"unicodeBidi\",\r\n            \"normal\",\r\n            ['span', 'p'],\r\n            false,\r\n            true,\r\n            function (str) {\r\n                return str;\r\n            },\r\n            null\r\n            ),\r\n        new StylingAttributeDefinition(\r\n            imscNames.ns_tts,\r\n            \"visibility\",\r\n            \"visible\",\r\n            ['body', 'div', 'p', 'region', 'span'],\r\n            true,\r\n            true,\r\n            function (str) {\r\n                return str;\r\n            },\r\n            null\r\n            ),\r\n        new StylingAttributeDefinition(\r\n            imscNames.ns_tts,\r\n            \"wrapOption\",\r\n            \"wrap\",\r\n            ['span'],\r\n            true,\r\n            true,\r\n            function (str) {\r\n                return str;\r\n            },\r\n            null\r\n            ),\r\n        new StylingAttributeDefinition(\r\n            imscNames.ns_tts,\r\n            \"writingMode\",\r\n            \"lrtb\",\r\n            ['region'],\r\n            false,\r\n            true,\r\n            function (str) {\r\n                return str;\r\n            },\r\n            null\r\n            ),\r\n        new StylingAttributeDefinition(\r\n            imscNames.ns_tts,\r\n            \"zIndex\",\r\n            \"auto\",\r\n            ['region'],\r\n            false,\r\n            true,\r\n            function (str) {\r\n\r\n                var rslt;\r\n\r\n                if (str === 'auto') {\r\n\r\n                    rslt = str;\r\n\r\n                } else {\r\n\r\n                    rslt = parseInt(str);\r\n\r\n                    if (isNaN(rslt)) {\r\n                        rslt = null;\r\n                    }\r\n\r\n                }\r\n\r\n                return rslt;\r\n            },\r\n            null\r\n            ),\r\n        new StylingAttributeDefinition(\r\n            imscNames.ns_ebutts,\r\n            \"linePadding\",\r\n            \"0c\",\r\n            ['p'],\r\n            true,\r\n            false,\r\n            imscUtils.parseLength,\r\n            function (doc, parent, element, attr, context) {\r\n\r\n                return imscUtils.toComputedLength(attr.value, attr.unit, null, null, doc.cellLength.w, null);\r\n\r\n            }\r\n        ),\r\n        new StylingAttributeDefinition(\r\n            imscNames.ns_ebutts,\r\n            \"multiRowAlign\",\r\n            \"auto\",\r\n            ['p'],\r\n            true,\r\n            false,\r\n            function (str) {\r\n                return str;\r\n            },\r\n            null\r\n            ),\r\n        new StylingAttributeDefinition(\r\n            imscNames.ns_smpte,\r\n            \"backgroundImage\",\r\n            null,\r\n            ['div'],\r\n            false,\r\n            false,\r\n            function (str) {\r\n                return str;\r\n            },\r\n            null\r\n            ),\r\n        new StylingAttributeDefinition(\r\n            imscNames.ns_itts,\r\n            \"forcedDisplay\",\r\n            \"false\",\r\n            ['body', 'div', 'p', 'region', 'span'],\r\n            true,\r\n            true,\r\n            function (str) {\r\n                return str === 'true' ? true : false;\r\n            },\r\n            null\r\n            ),\r\n        new StylingAttributeDefinition(\r\n            imscNames.ns_itts,\r\n            \"fillLineGap\",\r\n            \"false\",\r\n            ['p'],\r\n            true,\r\n            true,\r\n            function (str) {\r\n                return str === 'true' ? true : false;\r\n            },\r\n            null\r\n            )\r\n    ];\r\n\r\n    /* TODO: allow null parse function */\r\n\r\n    imscStyles.byQName = {};\r\n    for (var i in imscStyles.all) {\r\n\r\n        imscStyles.byQName[imscStyles.all[i].qname] = imscStyles.all[i];\r\n    }\r\n\r\n    imscStyles.byName = {};\r\n    for (var j in imscStyles.all) {\r\n\r\n        imscStyles.byName[imscStyles.all[j].name] = imscStyles.all[j];\r\n    }\r\n\r\n\r\n})(typeof exports === 'undefined' ? this.imscStyles = {} : exports,\r\n    typeof imscNames === 'undefined' ? require(\"./names\") : imscNames,\r\n    typeof imscUtils === 'undefined' ? require(\"./utils\") : imscUtils);\r\n","'use strict';\nvar $ = require('../internals/export');\nvar isObject = require('../internals/is-object');\nvar isArray = require('../internals/is-array');\nvar toAbsoluteIndex = require('../internals/to-absolute-index');\nvar toLength = require('../internals/to-length');\nvar toIndexedObject = require('../internals/to-indexed-object');\nvar createProperty = require('../internals/create-property');\nvar wellKnownSymbol = require('../internals/well-known-symbol');\nvar arrayMethodHasSpeciesSupport = require('../internals/array-method-has-species-support');\nvar arrayMethodUsesToLength = require('../internals/array-method-uses-to-length');\n\nvar HAS_SPECIES_SUPPORT = arrayMethodHasSpeciesSupport('slice');\nvar USES_TO_LENGTH = arrayMethodUsesToLength('slice', { ACCESSORS: true, 0: 0, 1: 2 });\n\nvar SPECIES = wellKnownSymbol('species');\nvar nativeSlice = [].slice;\nvar max = Math.max;\n\n// `Array.prototype.slice` method\n// https://tc39.github.io/ecma262/#sec-array.prototype.slice\n// fallback for not array-like ES3 strings and DOM objects\n$({ target: 'Array', proto: true, forced: !HAS_SPECIES_SUPPORT || !USES_TO_LENGTH }, {\n  slice: function slice(start, end) {\n    var O = toIndexedObject(this);\n    var length = toLength(O.length);\n    var k = toAbsoluteIndex(start, length);\n    var fin = toAbsoluteIndex(end === undefined ? length : end, length);\n    // inline `ArraySpeciesCreate` for usage native `Array#slice` where it's possible\n    var Constructor, result, n;\n    if (isArray(O)) {\n      Constructor = O.constructor;\n      // cross-realm fallback\n      if (typeof Constructor == 'function' && (Constructor === Array || isArray(Constructor.prototype))) {\n        Constructor = undefined;\n      } else if (isObject(Constructor)) {\n        Constructor = Constructor[SPECIES];\n        if (Constructor === null) Constructor = undefined;\n      }\n      if (Constructor === Array || Constructor === undefined) {\n        return nativeSlice.call(O, k, fin);\n      }\n    }\n    result = new (Constructor === undefined ? Array : Constructor)(max(fin - k, 0));\n    for (n = 0; k < fin; k++, n++) if (k in O) createProperty(result, n, O[k]);\n    result.length = n;\n    return result;\n  }\n});\n","// toObject with fallback for non-array-like ES3 strings\nvar IndexedObject = require('../internals/indexed-object');\nvar requireObjectCoercible = require('../internals/require-object-coercible');\n\nmodule.exports = function (it) {\n  return IndexedObject(requireObjectCoercible(it));\n};\n","// iterable DOM collections\n// flag - `iterable` interface - 'entries', 'keys', 'values', 'forEach' methods\nmodule.exports = {\n  CSSRuleList: 0,\n  CSSStyleDeclaration: 0,\n  CSSValueList: 0,\n  ClientRectList: 0,\n  DOMRectList: 0,\n  DOMStringList: 0,\n  DOMTokenList: 1,\n  DataTransferItemList: 0,\n  FileList: 0,\n  HTMLAllCollection: 0,\n  HTMLCollection: 0,\n  HTMLFormElement: 0,\n  HTMLSelectElement: 0,\n  MediaList: 0,\n  MimeTypeArray: 0,\n  NamedNodeMap: 0,\n  NodeList: 1,\n  PaintRequestList: 0,\n  Plugin: 0,\n  PluginArray: 0,\n  SVGLengthList: 0,\n  SVGNumberList: 0,\n  SVGPathSegList: 0,\n  SVGPointList: 0,\n  SVGStringList: 0,\n  SVGTransformList: 0,\n  SourceBufferList: 0,\n  StyleSheetList: 0,\n  TextTrackCueList: 0,\n  TextTrackList: 0,\n  TouchList: 0\n};\n","var NATIVE_SYMBOL = require('../internals/native-symbol');\n\nmodule.exports = NATIVE_SYMBOL\n  // eslint-disable-next-line no-undef\n  && !Symbol.sham\n  // eslint-disable-next-line no-undef\n  && typeof Symbol.iterator == 'symbol';\n","'use strict';Object.defineProperty(exports,\"__esModule\",{value:true});var _BaseMatcher2=require('./BaseMatcher');var _BaseMatcher3=_interopRequireDefault(_BaseMatcher2);var _Constants=require('../../../streaming/constants/Constants');var _Constants2=_interopRequireDefault(_Constants);var _DashConstants=require('../../constants/DashConstants');var _DashConstants2=_interopRequireDefault(_DashConstants);function _interopRequireDefault(obj){return obj&&obj.__esModule?obj:{default:obj};}function _classCallCheck(instance,Constructor){if(!(instance instanceof Constructor)){throw new TypeError(\"Cannot call a class as a function\");}}function _possibleConstructorReturn(self,call){if(!self){throw new ReferenceError(\"this hasn't been initialised - super() hasn't been called\");}return call&&(typeof call===\"object\"||typeof call===\"function\")?call:self;}function _inherits(subClass,superClass){if(typeof superClass!==\"function\"&&superClass!==null){throw new TypeError(\"Super expression must either be null or a function, not \"+typeof superClass);}subClass.prototype=Object.create(superClass&&superClass.prototype,{constructor:{value:subClass,enumerable:false,writable:true,configurable:true}});if(superClass)Object.setPrototypeOf?Object.setPrototypeOf(subClass,superClass):subClass.__proto__=superClass;}/**\n * The copyright in this software is being made available under the BSD License,\n * included below. This software may be subject to other third party and contributor\n * rights, including patent rights, and no such rights are granted under this license.\n *\n * Copyright (c) 2013, Dash Industry Forum.\n * All rights reserved.\n *\n * Redistribution and use in source and binary forms, with or without modification,\n * are permitted provided that the following conditions are met:\n *  * Redistributions of source code must retain the above copyright notice, this\n *  list of conditions and the following disclaimer.\n *  * Redistributions in binary form must reproduce the above copyright notice,\n *  this list of conditions and the following disclaimer in the documentation and/or\n *  other materials provided with the distribution.\n *  * Neither the name of Dash Industry Forum nor the names of its\n *  contributors may be used to endorse or promote products derived from this software\n *  without specific prior written permission.\n *\n *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY\n *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED\n *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.\n *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,\n *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT\n *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR\n *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,\n *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\n *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\n *  POSSIBILITY OF SUCH DAMAGE.\n *//**\n * @classdesc matches and converts xs:duration to seconds\n */var durationRegex=/^([-])?P(([\\d.]*)Y)?(([\\d.]*)M)?(([\\d.]*)D)?T?(([\\d.]*)H)?(([\\d.]*)M)?(([\\d.]*)S)?/;var SECONDS_IN_YEAR=365*24*60*60;var SECONDS_IN_MONTH=30*24*60*60;var SECONDS_IN_DAY=24*60*60;var SECONDS_IN_HOUR=60*60;var SECONDS_IN_MIN=60;var DurationMatcher=function(_BaseMatcher){_inherits(DurationMatcher,_BaseMatcher);function DurationMatcher(){_classCallCheck(this,DurationMatcher);return _possibleConstructorReturn(this,(DurationMatcher.__proto__||Object.getPrototypeOf(DurationMatcher)).call(this,function(attr){var attributeList=[_DashConstants2.default.MIN_BUFFER_TIME,_DashConstants2.default.MEDIA_PRESENTATION_DURATION,_DashConstants2.default.MINIMUM_UPDATE_PERIOD,_DashConstants2.default.TIMESHIFT_BUFFER_DEPTH,_DashConstants2.default.MAX_SEGMENT_DURATION,_DashConstants2.default.MAX_SUBSEGMENT_DURATION,_DashConstants2.default.SUGGESTED_PRESENTATION_DELAY,_DashConstants2.default.START,_Constants2.default.START_TIME,_DashConstants2.default.DURATION];var len=attributeList.length;for(var i=0;i<len;i++){if(attr.nodeName===attributeList[i]){return durationRegex.test(attr.value);}}return false;},function(str){//str = \"P10Y10M10DT10H10M10.1S\";\nvar match=durationRegex.exec(str);var result=parseFloat(match[3]||0)*SECONDS_IN_YEAR+parseFloat(match[5]||0)*SECONDS_IN_MONTH+parseFloat(match[7]||0)*SECONDS_IN_DAY+parseFloat(match[9]||0)*SECONDS_IN_HOUR+parseFloat(match[11]||0)*SECONDS_IN_MIN+parseFloat(match[13]||0);if(match[1]!==undefined){result=-result;}return result;}));}return DurationMatcher;}(_BaseMatcher3.default);exports.default=DurationMatcher;\n//# sourceMappingURL=DurationMatcher.js.map\n","var global = require('../internals/global');\n\nmodule.exports = global.Promise;\n","/* \r\n * Copyright (c) 2016, Pierre-Anthony Lemieux <pal@sandflow.com>\r\n * All rights reserved.\r\n *\r\n * Redistribution and use in source and binary forms, with or without\r\n * modification, are permitted provided that the following conditions are met:\r\n *\r\n * * Redistributions of source code must retain the above copyright notice, this\r\n *   list of conditions and the following disclaimer.\r\n * * Redistributions in binary form must reproduce the above copyright notice,\r\n *   this list of conditions and the following disclaimer in the documentation\r\n *   and/or other materials provided with the distribution.\r\n *\r\n * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS \"AS IS\"\r\n * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE\r\n * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE\r\n * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE\r\n * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR\r\n * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF\r\n * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS\r\n * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN\r\n * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)\r\n * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE\r\n * POSSIBILITY OF SUCH DAMAGE.\r\n */\r\n\r\n/**\r\n * @module imscUtils\r\n */\r\n\r\n;\r\n(function (imscUtils) { // wrapper for non-node envs\r\n\r\n    /* Documents the error handler interface */\r\n\r\n    /**\r\n     * @classdesc Generic interface for handling events. The interface exposes four\r\n     * methods:\r\n     * * <pre>info</pre>: unusual event that does not result in an inconsistent state\r\n     * * <pre>warn</pre>: unexpected event that should not result in an inconsistent state\r\n     * * <pre>error</pre>: unexpected event that may result in an inconsistent state\r\n     * * <pre>fatal</pre>: unexpected event that results in an inconsistent state\r\n     *   and termination of processing\r\n     * Each method takes a single <pre>string</pre> describing the event as argument,\r\n     * and returns a single <pre>boolean</pre>, which terminates processing if <pre>true</pre>.\r\n     *\r\n     * @name ErrorHandler\r\n     * @class\r\n     */\r\n\r\n\r\n    /*\r\n     * Parses a TTML color expression\r\n     * \r\n     */\r\n\r\n    var HEX_COLOR_RE = /#([0-9a-fA-F]{2})([0-9a-fA-F]{2})([0-9a-fA-F]{2})([0-9a-fA-F]{2})?/;\r\n    var DEC_COLOR_RE = /rgb\\(\\s*(\\d+)\\s*,\\s*(\\d+)\\s*,\\s*(\\d+)\\s*\\)/;\r\n    var DEC_COLORA_RE = /rgba\\(\\s*(\\d+),\\s*(\\d+)\\s*,\\s*(\\d+)\\s*,\\s*(\\d+)\\s*\\)/;\r\n    var NAMED_COLOR = {\r\n        transparent: [0, 0, 0, 0],\r\n        black: [0, 0, 0, 255],\r\n        silver: [192, 192, 192, 255],\r\n        gray: [128, 128, 128, 255],\r\n        white: [255, 255, 255, 255],\r\n        maroon: [128, 0, 0, 255],\r\n        red: [255, 0, 0, 255],\r\n        purple: [128, 0, 128, 255],\r\n        fuchsia: [255, 0, 255, 255],\r\n        magenta: [255, 0, 255, 255],\r\n        green: [0, 128, 0, 255],\r\n        lime: [0, 255, 0, 255],\r\n        olive: [128, 128, 0, 255],\r\n        yellow: [255, 255, 0, 255],\r\n        navy: [0, 0, 128, 255],\r\n        blue: [0, 0, 255, 255],\r\n        teal: [0, 128, 128, 255],\r\n        aqua: [0, 255, 255, 255],\r\n        cyan: [0, 255, 255, 255]\r\n    };\r\n\r\n    imscUtils.parseColor = function (str) {\r\n\r\n        var m;\r\n        \r\n        var r = null;\r\n        \r\n        var nc = NAMED_COLOR[str.toLowerCase()];\r\n        \r\n        if (nc !== undefined) {\r\n\r\n            r = nc;\r\n\r\n        } else if ((m = HEX_COLOR_RE.exec(str)) !== null) {\r\n\r\n            r = [parseInt(m[1], 16),\r\n                parseInt(m[2], 16),\r\n                parseInt(m[3], 16),\r\n                (m[4] !== undefined ? parseInt(m[4], 16) : 255)];\r\n            \r\n        } else if ((m = DEC_COLOR_RE.exec(str)) !== null) {\r\n\r\n            r = [parseInt(m[1]),\r\n                parseInt(m[2]),\r\n                parseInt(m[3]),\r\n                255];\r\n            \r\n        } else if ((m = DEC_COLORA_RE.exec(str)) !== null) {\r\n\r\n            r = [parseInt(m[1]),\r\n                parseInt(m[2]),\r\n                parseInt(m[3]),\r\n                parseInt(m[4])];\r\n            \r\n        }\r\n\r\n        return r;\r\n    };\r\n\r\n    var LENGTH_RE = /^((?:\\+|\\-)?\\d*(?:\\.\\d+)?)(px|em|c|%|rh|rw)$/;\r\n\r\n    imscUtils.parseLength = function (str) {\r\n\r\n        var m;\r\n\r\n        var r = null;\r\n\r\n        if ((m = LENGTH_RE.exec(str)) !== null) {\r\n\r\n            r = {value: parseFloat(m[1]), unit: m[2]};\r\n        }\r\n\r\n        return r;\r\n    };\r\n\r\n    imscUtils.parseTextShadow = function (str) {\r\n\r\n        var shadows = str.split(\",\");\r\n\r\n        var r = [];\r\n\r\n        for (var i in shadows) {\r\n\r\n            var shadow = shadows[i].split(\" \");\r\n\r\n            if (shadow.length === 1 && shadow[0] === \"none\") {\r\n\r\n                return \"none\";\r\n\r\n            } else if (shadow.length > 1 && shadow.length < 5) {\r\n\r\n                var out_shadow = [null, null, null, null];\r\n\r\n                /* x offset */\r\n\r\n                var l = imscUtils.parseLength(shadow.shift());\r\n\r\n                if (l === null)\r\n                    return null;\r\n\r\n                out_shadow[0] = l;\r\n\r\n                /* y offset */\r\n\r\n                l = imscUtils.parseLength(shadow.shift());\r\n\r\n                if (l === null)\r\n                    return null;\r\n\r\n                out_shadow[1] = l;\r\n\r\n                /* is there a third component */\r\n\r\n                if (shadow.length === 0) {\r\n                    r.push(out_shadow);\r\n                    continue;\r\n                }\r\n\r\n                l = imscUtils.parseLength(shadow[0]);\r\n\r\n                if (l !== null) {\r\n\r\n                    out_shadow[2] = l;\r\n\r\n                    shadow.shift();\r\n\r\n                }\r\n\r\n                if (shadow.length === 0) {\r\n                    r.push(out_shadow);\r\n                    continue;\r\n                }\r\n\r\n                var c = imscUtils.parseColor(shadow[0]);\r\n\r\n                if (c === null)\r\n                    return null;\r\n\r\n                out_shadow[3] = c;\r\n\r\n                r.push(out_shadow);\r\n            }\r\n\r\n        }\r\n\r\n        return r;\r\n    };\r\n\r\n\r\n    imscUtils.parsePosition = function (str) {\r\n\r\n        /* see https://www.w3.org/TR/ttml2/#style-value-position */\r\n\r\n        var s = str.split(\" \");\r\n\r\n        var isKeyword = function (str) {\r\n\r\n            return str === \"center\" ||\r\n                    str === \"left\" ||\r\n                    str === \"top\" ||\r\n                    str === \"bottom\" ||\r\n                    str === \"right\";\r\n\r\n        };\r\n\r\n        if (s.length > 4) {\r\n\r\n            return null;\r\n\r\n        }\r\n\r\n        /* initial clean-up pass */\r\n\r\n        for (var j in s) {\r\n\r\n            if (!isKeyword(s[j])) {\r\n\r\n                var l = imscUtils.parseLength(s[j]);\r\n\r\n                if (l === null)\r\n                    return null;\r\n\r\n                s[j] = l;\r\n            }\r\n\r\n        }\r\n\r\n        /* position default */\r\n\r\n        var pos = {\r\n            h: {edge: \"left\", offset: {value: 50, unit: \"%\"}},\r\n            v: {edge: \"top\", offset: {value: 50, unit: \"%\"}}\r\n        };\r\n\r\n        /* update position */\r\n\r\n        for (var i = 0; i < s.length; ) {\r\n\r\n            /* extract the current component */\r\n\r\n            var comp = s[i++];\r\n\r\n            if (isKeyword(comp)) {\r\n\r\n                /* we have a keyword */\r\n\r\n                var offset = {value: 0, unit: \"%\"};\r\n\r\n                /* peek at the next component */\r\n\r\n                if (s.length !== 2 && i < s.length && (!isKeyword(s[i]))) {\r\n\r\n                    /* followed by an offset */\r\n\r\n                    offset = s[i++];\r\n\r\n                }\r\n\r\n                /* skip if center */\r\n\r\n                if (comp === \"right\") {\r\n\r\n                    pos.h.edge = comp;\r\n\r\n                    pos.h.offset = offset;\r\n\r\n                } else if (comp === \"bottom\") {\r\n\r\n                    pos.v.edge = comp;\r\n\r\n\r\n                    pos.v.offset = offset;\r\n\r\n\r\n                } else if (comp === \"left\") {\r\n\r\n                    pos.h.offset = offset;\r\n\r\n\r\n                } else if (comp === \"top\") {\r\n\r\n                    pos.v.offset = offset;\r\n\r\n\r\n                }\r\n\r\n            } else if (s.length === 1 || s.length === 2) {\r\n\r\n                /* we have a bare value */\r\n\r\n                if (i === 1) {\r\n\r\n                    /* assign it to left edge if first bare value */\r\n\r\n                    pos.h.offset = comp;\r\n\r\n                } else {\r\n\r\n                    /* assign it to top edge if second bare value */\r\n\r\n                    pos.v.offset = comp;\r\n\r\n                }\r\n\r\n            } else {\r\n\r\n                /* error condition */\r\n\r\n                return null;\r\n\r\n            }\r\n\r\n        }\r\n\r\n        return pos;\r\n    };\r\n\r\n\r\n    imscUtils.ComputedLength = function (rw, rh) {\r\n        this.rw = rw;\r\n        this.rh = rh;\r\n    };\r\n\r\n    imscUtils.ComputedLength.prototype.toUsedLength = function (width, height) {\r\n        return width * this.rw + height * this.rh;\r\n    };\r\n\r\n    imscUtils.ComputedLength.prototype.isZero = function () {\r\n        return this.rw === 0 && this.rh === 0;\r\n    };\r\n\r\n    /**\r\n     * Computes a specified length to a root container relative length\r\n     * \r\n     * @param {number} lengthVal Length value to be computed\r\n     * @param {string} lengthUnit Units of the length value\r\n     * @param {number} emScale length of 1em, or null if em is not allowed\r\n     * @param {number} percentScale length to which , or null if perecentage is not allowed\r\n     * @param {number} cellScale length of 1c, or null if c is not allowed\r\n     * @param {number} pxScale length of 1px, or null if px is not allowed\r\n     * @param {number} direction 0 if the length is computed in the horizontal direction, 1 if the length is computed in the vertical direction\r\n     * @return {number} Computed length\r\n     */\r\n    imscUtils.toComputedLength = function(lengthVal, lengthUnit, emLength, percentLength, cellLength, pxLength) {\r\n\r\n        if (lengthUnit === \"%\" && percentLength) {\r\n\r\n            return new imscUtils.ComputedLength(\r\n                    percentLength.rw * lengthVal / 100,\r\n                    percentLength.rh * lengthVal / 100\r\n                    );\r\n\r\n        } else if (lengthUnit === \"em\" && emLength) {\r\n\r\n            return new imscUtils.ComputedLength(\r\n                    emLength.rw * lengthVal,\r\n                    emLength.rh * lengthVal\r\n                    );\r\n\r\n        } else if (lengthUnit === \"c\" && cellLength) {\r\n\r\n            return new imscUtils.ComputedLength(\r\n                    lengthVal * cellLength.rw,\r\n                    lengthVal * cellLength.rh\r\n                    );\r\n\r\n        } else if (lengthUnit === \"px\" && pxLength) {\r\n\r\n            return new imscUtils.ComputedLength(\r\n                    lengthVal * pxLength.rw,\r\n                    lengthVal * pxLength.rh\r\n                    );\r\n\r\n        } else if (lengthUnit === \"rh\") {\r\n\r\n            return new imscUtils.ComputedLength(\r\n                    0,\r\n                    lengthVal / 100\r\n                    );\r\n\r\n        } else if (lengthUnit === \"rw\") {\r\n\r\n            return new imscUtils.ComputedLength(\r\n                    lengthVal / 100,\r\n                    0                    \r\n                    );\r\n\r\n        } else {\r\n\r\n            return null;\r\n\r\n        }\r\n\r\n    };\r\n\r\n\r\n\r\n})(typeof exports === 'undefined' ? this.imscUtils = {} : exports);\r\n","import window from 'global/window';\n\nvar atob = function atob(s) {\n  return window.atob ? window.atob(s) : Buffer.from(s, 'base64').toString('binary');\n};\n\nexport default function decodeB64ToUint8Array(b64Text) {\n  var decodedString = atob(b64Text);\n  var array = new Uint8Array(decodedString.length);\n\n  for (var i = 0; i < decodedString.length; i++) {\n    array[i] = decodedString.charCodeAt(i);\n  }\n\n  return array;\n}"],"sourceRoot":""}