@l5i/dashjs/build/es5/src/streaming/Stream.js

A reference client implementation for the playback of MPEG DASH via Javascript and compliant browsers.

/**
 * The copyright in this software is being made available under the BSD License,
 * included below. This software may be subject to other third party and contributor
 * rights, including patent rights, and no such rights are granted under this license.
 *
 * Copyright (c) 2013, Dash Industry Forum.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without modification,
 * are permitted provided that the following conditions are met:
 *  * Redistributions of source code must retain the above copyright notice, this
 *  list of conditions and the following disclaimer.
 *  * Redistributions in binary form must reproduce the above copyright notice,
 *  this list of conditions and the following disclaimer in the documentation and/or
 *  other materials provided with the distribution.
 *  * Neither the name of Dash Industry Forum nor the names of its
 *  contributors may be used to endorse or promote products derived from this software
 *  without specific prior written permission.
 *
 *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY
 *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
 *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
 *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 *  POSSIBILITY OF SUCH DAMAGE.
 */'use strict';Object.defineProperty(exports,'__esModule',{value:true});function _interopRequireDefault(obj){return obj && obj.__esModule?obj:{'default':obj};}var _constantsConstants=require('./constants/Constants');var _constantsConstants2=_interopRequireDefault(_constantsConstants);var _StreamProcessor=require('./StreamProcessor');var _StreamProcessor2=_interopRequireDefault(_StreamProcessor);var _controllersEventController=require('./controllers/EventController');var _controllersEventController2=_interopRequireDefault(_controllersEventController);var _controllersFragmentController=require('./controllers/FragmentController');var _controllersFragmentController2=_interopRequireDefault(_controllersFragmentController);var _thumbnailThumbnailController=require('./thumbnail/ThumbnailController');var _thumbnailThumbnailController2=_interopRequireDefault(_thumbnailThumbnailController);var _coreEventBus=require('../core/EventBus');var _coreEventBus2=_interopRequireDefault(_coreEventBus);var _coreEventsEvents=require('../core/events/Events');var _coreEventsEvents2=_interopRequireDefault(_coreEventsEvents);var _coreDebug=require('../core/Debug');var _coreDebug2=_interopRequireDefault(_coreDebug);var _coreErrorsErrors=require('../core/errors/Errors');var _coreErrorsErrors2=_interopRequireDefault(_coreErrorsErrors);var _coreFactoryMaker=require('../core/FactoryMaker');var _coreFactoryMaker2=_interopRequireDefault(_coreFactoryMaker);var _voDashJSError=require('./vo/DashJSError');var _voDashJSError2=_interopRequireDefault(_voDashJSError);function Stream(config){config = config || {};var context=this.context;var eventBus=(0,_coreEventBus2['default'])(context).getInstance();var manifestModel=config.manifestModel;var dashManifestModel=config.dashManifestModel;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 metricsModel=config.metricsModel;var abrController=config.abrController;var playbackController=config.playbackController;var mediaController=config.mediaController;var textController=config.textController;var videoModel=config.videoModel;var instance=undefined,logger=undefined,streamProcessors=undefined,isStreamActivated=undefined,isMediaInitialized=undefined,streamInfo=undefined,updateError=undefined,isUpdating=undefined,protectionController=undefined,fragmentController=undefined,thumbnailController=undefined,eventController=undefined,preloaded=undefined,trackChangedEvent=undefined;var codecCompatibilityTable=[{'codec':'avc1','compatibleCodecs':['avc3']},{'codec':'avc3','compatibleCodecs':['avc1']}];function setup(){logger = (0,_coreDebug2['default'])(context).getInstance().getLogger(instance);resetInitialSettings();fragmentController = (0,_controllersFragmentController2['default'])(context).create({mediaPlayerModel:mediaPlayerModel,metricsModel:metricsModel,errHandler:errHandler});registerEvents();}function registerEvents(){eventBus.on(_coreEventsEvents2['default'].BUFFERING_COMPLETED,onBufferingCompleted,instance);eventBus.on(_coreEventsEvents2['default'].DATA_UPDATE_COMPLETED,onDataUpdateCompleted,instance);}function unRegisterEvents(){eventBus.off(_coreEventsEvents2['default'].DATA_UPDATE_COMPLETED,onDataUpdateCompleted,instance);eventBus.off(_coreEventsEvents2['default'].BUFFERING_COMPLETED,onBufferingCompleted,instance);}function registerProtectionEvents(){if(protectionController){eventBus.on(_coreEventsEvents2['default'].KEY_ERROR,onProtectionError,instance);eventBus.on(_coreEventsEvents2['default'].SERVER_CERTIFICATE_UPDATED,onProtectionError,instance);eventBus.on(_coreEventsEvents2['default'].LICENSE_REQUEST_COMPLETE,onProtectionError,instance);eventBus.on(_coreEventsEvents2['default'].KEY_SYSTEM_SELECTED,onProtectionError,instance);eventBus.on(_coreEventsEvents2['default'].KEY_SESSION_CREATED,onProtectionError,instance);eventBus.on(_coreEventsEvents2['default'].KEY_STATUSES_CHANGED,onProtectionError,instance);}}function unRegisterProtectionEvents(){if(protectionController){eventBus.off(_coreEventsEvents2['default'].KEY_ERROR,onProtectionError,instance);eventBus.off(_coreEventsEvents2['default'].SERVER_CERTIFICATE_UPDATED,onProtectionError,instance);eventBus.off(_coreEventsEvents2['default'].LICENSE_REQUEST_COMPLETE,onProtectionError,instance);eventBus.off(_coreEventsEvents2['default'].KEY_SYSTEM_SELECTED,onProtectionError,instance);eventBus.off(_coreEventsEvents2['default'].KEY_SESSION_CREATED,onProtectionError,instance);eventBus.off(_coreEventsEvents2['default'].KEY_STATUSES_CHANGED,onProtectionError,instance);}}function initialize(StreamInfo,ProtectionController){streamInfo = StreamInfo;protectionController = ProtectionController;registerProtectionEvents();} /**
     * Activates Stream by re-initializing some of its components
     * @param {MediaSource} mediaSource
     * @memberof Stream#
     * @param {SourceBuffer} previousBuffers
     */function activate(mediaSource,previousBuffers){if(!isStreamActivated){var result=undefined;eventBus.on(_coreEventsEvents2['default'].CURRENT_TRACK_CHANGED,onCurrentTrackChanged,instance);if(!getPreloaded()){result = initializeMedia(mediaSource,previousBuffers);}else {initializeAfterPreload();result = previousBuffers;}isStreamActivated = true;return result;}return previousBuffers;} /**
     * Partially resets some of the Stream elements
     * @memberof Stream#
     * @param {boolean} keepBuffers
     */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(_coreEventsEvents2['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
//so do this after the buffers are created above.
streamProcessors[i].dischargePreBuffer();}if(streamProcessors.length === 0){var msg='No streams to play.';errHandler.manifestError(msg,'nostreams',manifestModel.getValue());errHandler.error(new _voDashJSError2['default'](_coreErrorsErrors2['default'].MANIFEST_ERROR_ID_NOSTREAMS_CODE,msg + 'nostreams',manifestModel.getValue()));logger.fatal(msg);}}function resetInitialSettings(){deactivate();streamInfo = null;updateError = {};isUpdating = false;}function reset(){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(!abrController || !abrController.hasOwnProperty('getBitrateList') || !adapter || !adapter.hasOwnProperty('getAllMediaInfoForType') || !adapter.hasOwnProperty('getEventsFor')){throw new Error('Missing config parameter(s)');}} /**
     * @param {string} type
     * @returns {Array}
     * @memberof Stream#
     */function getBitrateListFor(type){checkConfig();if(type === _constantsConstants2['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.mediaKeySessionError(event.error.message);errHandler.error(event.error);logger.fatal(event.error.message);reset();}}function isMediaSupported(mediaInfo){var type=mediaInfo.type;var codec=undefined,msg=undefined;if(type === _constantsConstants2['default'].MUXED && mediaInfo){msg = 'Multiplexed representations are intentionally not supported, as they are not compliant with the DASH-AVC/264 guidelines';logger.fatal(msg);errHandler.manifestError(msg,'multiplexedrep',manifestModel.getValue());errHandler.error(new _voDashJSError2['default'](_coreErrorsErrors2['default'].MANIFEST_ERROR_ID_MULTIPLEXED_CODE,msg,manifestModel.getValue()));return false;}if(type === _constantsConstants2['default'].TEXT || type === _constantsConstants2['default'].FRAGMENTED_TEXT || type === _constantsConstants2['default'].EMBEDDED_TEXT || type === _constantsConstants2['default'].IMAGE){return true;}codec = mediaInfo.codec;logger.debug(type + ' codec: ' + codec);if(!!mediaInfo.contentProtection && !capabilities.supportsEncryptedMedia()){errHandler.capabilityError('encryptedmedia');errHandler.error(new _voDashJSError2['default'](_coreErrorsErrors2['default'].CAPABILITY_MEDIAKEYS_ERROR_CODE,_coreErrorsErrors2['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(e.newMediaInfo.streamInfo.id !== streamInfo.id)return;var processor=getProcessorForMediaInfo(e.newMediaInfo);if(!processor)return;var currentTime=playbackController.getTime();logger.info('Stream -  Process track changed at current time ' + currentTime);var mediaInfo=e.newMediaInfo;var manifest=manifestModel.getValue();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 !== _constantsConstants2['default'].FRAGMENTED_TEXT){abrController.updateTopQualityIndex(mediaInfo);processor.switchTrackAsked();processor.getFragmentModel().abortRequests();}else {processor.getScheduleController().setSeekTarget(NaN);adapter.setIndexHandlerTime(processor,currentTime);adapter.resetIndexHandler(processor);}}}function createStreamProcessor(mediaInfo,allMediaForType,mediaSource,optionalSettings){var streamProcessor=(0,_StreamProcessor2['default'])(context).create({type:mediaInfo.type,mimeType:mediaInfo.mimeType,timelineConverter:timelineConverter,adapter:adapter,manifestModel:manifestModel,dashManifestModel:dashManifestModel,mediaPlayerModel:mediaPlayerModel,metricsModel:metricsModel,dashMetrics:config.dashMetrics,baseURLController:config.baseURLController,stream:instance,abrController:abrController,domStorage:config.domStorage,playbackController:playbackController,mediaController:mediaController,streamController:config.streamController,textController:textController,errHandler:errHandler});streamProcessor.initialize(mediaSource);abrController.updateTopQualityIndex(mediaInfo);if(optionalSettings){streamProcessor.setBuffer(optionalSettings.buffer);streamProcessor.getIndexHandler().setCurrentTime(optionalSettings.currentTime);streamProcessors[optionalSettings.replaceIdx] = streamProcessor;}else {streamProcessors.push(streamProcessor);}if(optionalSettings && optionalSettings.ignoreMediaInfo){return;}if(mediaInfo.type === _constantsConstants2['default'].TEXT || mediaInfo.type === _constantsConstants2['default'].FRAGMENTED_TEXT){var idx=undefined;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
}streamProcessor.selectMediaInfo(allMediaForType[idx]); //sets the initial media info
}else {streamProcessor.addMediaInfo(mediaInfo,true);}}function initializeMediaForType(type,mediaSource){var allMediaForType=adapter.getAllMediaInfoForType(streamInfo,type);var mediaInfo=null;var initialMediaInfo=undefined;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 === _constantsConstants2['default'].EMBEDDED_TEXT){textController.addEmbeddedTrack(mediaInfo);}else {if(!isMediaSupported(mediaInfo))continue;mediaController.addTrack(mediaInfo);}}if(type === _constantsConstants2['default'].EMBEDDED_TEXT || mediaController.getTracksFor(type,streamInfo).length === 0){return;}if(type === _constantsConstants2['default'].IMAGE){thumbnailController = (0,_thumbnailThumbnailController2['default'])(context).create({dashManifestModel:dashManifestModel,adapter:adapter,baseURLController:config.baseURLController,stream:instance});return;}if(type !== _constantsConstants2['default'].FRAGMENTED_TEXT || type === _constantsConstants2['default'].FRAGMENTED_TEXT && textController.getTextDefaultEnabled()){mediaController.checkInitialMediaSettingsForType(type,streamInfo);initialMediaInfo = mediaController.getCurrentTrackFor(type,streamInfo);}if(type === _constantsConstants2['default'].FRAGMENTED_TEXT && !textController.getTextDefaultEnabled()){initialMediaInfo = mediaController.getTracksFor(type,streamInfo)[0];} // TODO : How to tell index handler live/duration?
// TODO : Pass to controller and then pass to each method on handler?
createStreamProcessor(initialMediaInfo,allMediaForType,mediaSource);}function initializeEventController(){ //if initializeMedia is called from a switch period, eventController could have been already created.
if(!eventController){eventController = (0,_controllersEventController2['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(_constantsConstants2['default'].VIDEO);filterCodecs(_constantsConstants2['default'].AUDIO);if(element === null || element && /^VIDEO$/i.test(element.nodeName)){initializeMediaForType(_constantsConstants2['default'].VIDEO,mediaSource);}initializeMediaForType(_constantsConstants2['default'].AUDIO,mediaSource);initializeMediaForType(_constantsConstants2['default'].TEXT,mediaSource);initializeMediaForType(_constantsConstants2['default'].FRAGMENTED_TEXT,mediaSource);initializeMediaForType(_constantsConstants2['default'].EMBEDDED_TEXT,mediaSource);initializeMediaForType(_constantsConstants2['default'].MUXED,mediaSource);initializeMediaForType(_constantsConstants2['default'].IMAGE,mediaSource); //TODO. Consider initialization of TextSourceBuffer here if embeddedText, but no sideloadedText.
var buffers=createBuffers(previousBuffers);isMediaInitialized = true;isUpdating = false;if(streamProcessors.length === 0){var msg='No streams to play.';errHandler.manifestError(msg,'nostreams',manifestModel.getValue());errHandler.error(new _voDashJSError2['default'](_coreErrorsErrors2['default'].MANIFEST_ERROR_ID_NOSTREAMS_CODE,msg,manifestModel.getValue()));logger.fatal(msg);}else {checkIfInitializationCompleted();}return buffers;}function initializeAfterPreload(){isUpdating = true;checkConfig();filterCodecs(_constantsConstants2['default'].VIDEO);filterCodecs(_constantsConstants2['default'].AUDIO);isMediaInitialized = true;isUpdating = false;if(streamProcessors.length === 0){var msg='No streams to play.';errHandler.manifestError(msg,'nostreams',manifestModel.getValue());logger.debug(msg);}else {checkIfInitializationCompleted();}}function filterCodecs(type){var realAdaptation=dashManifestModel.getAdaptationForType(manifestModel.getValue(),streamInfo.index,type,streamInfo);if(!realAdaptation || !Array.isArray(realAdaptation.Representation_asArray))return; // Filter codecs that are not supported
realAdaptation.Representation_asArray = realAdaptation.Representation_asArray.filter(function(_,i){ // keep at least codec from lowest representation
if(i === 0)return true;var codec=dashManifestModel.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 _voDashJSError2['default'](_coreErrorsErrors2['default'].DATA_UPDATE_FAILED_ERROR_CODE,_coreErrorsErrors2['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
// could be cleared in case an error is detected while initializing DRM keysystem
for(var i=0;i < ln && streamProcessors[i];i++) {if(streamProcessors[i].getType() === _constantsConstants2['default'].AUDIO || streamProcessors[i].getType() === _constantsConstants2['default'].VIDEO || streamProcessors[i].getType() === _constantsConstants2['default'].FRAGMENTED_TEXT){protectionController.initializeForMedia(streamProcessors[i].getMediaInfo());}}}eventBus.trigger(_coreEventsEvents2['default'].STREAM_INITIALIZED,{streamInfo:streamInfo,error:error});}function getMediaInfo(type){var ln=streamProcessors.length;var streamProcessor=null;for(var i=0;i < ln;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++) {buffers[streamProcessors[i].getType()] = streamProcessors[i].createBuffer(previousBuffers).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
for(var i=0;i < ln;i++) { //if audio or video buffer is not buffering completed state, do not send STREAM_BUFFERING_COMPLETED
if(!processors[i].isBufferingCompleted() && (processors[i].getType() === _constantsConstants2['default'].AUDIO || processors[i].getType() === _constantsConstants2['default'].VIDEO)){logger.warn('onBufferingCompleted - can\'t trigger STREAM_BUFFERING_COMPLETED because streamProcessor ' + processors[i].getType() + ' is not buffering completed');return;}}logger.debug('onBufferingCompleted - trigger STREAM_BUFFERING_COMPLETED');eventBus.trigger(_coreEventsEvents2['default'].STREAM_BUFFERING_COMPLETED,{streamInfo:streamInfo});}function onDataUpdateCompleted(e){var sp=e.sender.getStreamProcessor();if(sp.getStreamInfo() !== streamInfo){return;}updateError[sp.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 ln=streamProcessors.length;var arr=[];var type=undefined,streamProcessor=undefined;for(var i=0;i < ln;i++) {streamProcessor = streamProcessors[i];type = streamProcessor.getType();if(type === _constantsConstants2['default'].AUDIO || type === _constantsConstants2['default'].VIDEO || type === _constantsConstants2['default'].FRAGMENTED_TEXT || type === _constantsConstants2['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(_constantsConstants2['default'].VIDEO);filterCodecs(_constantsConstants2['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 !== 'fragmentedText'){var processor=getProcessorForMediaInfo(trackChangedEvent.oldMediaInfo);if(!processor)return;processor.switchTrackAsked();trackChangedEvent = undefined;}}isUpdating = false;checkIfInitializationCompleted();}function isCompatibleWithStream(stream){return compareCodecs(stream,_constantsConstants2['default'].VIDEO) && compareCodecs(stream,_constantsConstants2['default'].AUDIO);}function compareCodecs(stream,type){if(!stream){return false;}var newStreamInfo=stream.getStreamInfo();var currentStreamInfo=getStreamInfo();if(!newStreamInfo || !currentStreamInfo){return false;}var newAdaptation=dashManifestModel.getAdaptationForType(manifestModel.getValue(),newStreamInfo.index,type,newStreamInfo);var currentAdaptation=dashManifestModel.getAdaptationForType(manifestModel.getValue(),currentStreamInfo.index,type,currentStreamInfo);if(!newAdaptation || !currentAdaptation){ // If there is no adaptation for neither the old or the new stream they're compatible
return !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
function codecRootCompatibleWithCodec(codec1,codec2){var codecRoot=codec1.split('.')[0];var compatTableCodec=codecCompatibilityTable.find(function(compat){return compat.codec === codecRoot;});var rootCompatible=codec2.indexOf(codecRoot) === 0;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(_constantsConstants2['default'].VIDEO,mediaSource);initializeMediaForType(_constantsConstants2['default'].AUDIO,mediaSource);initializeMediaForType(_constantsConstants2['default'].TEXT,mediaSource);initializeMediaForType(_constantsConstants2['default'].FRAGMENTED_TEXT,mediaSource);initializeMediaForType(_constantsConstants2['default'].EMBEDDED_TEXT,mediaSource);initializeMediaForType(_constantsConstants2['default'].MUXED,mediaSource);initializeMediaForType(_constantsConstants2['default'].IMAGE,mediaSource);createBuffers(previousBuffers);eventBus.on(_coreEventsEvents2['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,isCompatibleWithStream:isCompatibleWithStream,getPreloaded:getPreloaded,addInbandEvents:addInbandEvents};setup();return instance;}Stream.__dashjs_factory_name = 'Stream';exports['default'] = _coreFactoryMaker2['default'].getClassFactory(Stream);module.exports = exports['default'];
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