@l5i/dashjs/build/es5/src/streaming/controllers/ScheduleController.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 _voMetricsPlayList=require('../vo/metrics/PlayList');var _AbrController=require('./AbrController');var _AbrController2=_interopRequireDefault(_AbrController);var _BufferController=require('./BufferController');var _BufferController2=_interopRequireDefault(_BufferController);var _rulesSchedulingBufferLevelRule=require('../rules/scheduling/BufferLevelRule');var _rulesSchedulingBufferLevelRule2=_interopRequireDefault(_rulesSchedulingBufferLevelRule);var _rulesSchedulingNextFragmentRequestRule=require('../rules/scheduling/NextFragmentRequestRule');var _rulesSchedulingNextFragmentRequestRule2=_interopRequireDefault(_rulesSchedulingNextFragmentRequestRule);var _modelsFragmentModel=require('../models/FragmentModel');var _modelsFragmentModel2=_interopRequireDefault(_modelsFragmentModel);var _coreEventBus=require('../../core/EventBus');var _coreEventBus2=_interopRequireDefault(_coreEventBus);var _coreEventsEvents=require('../../core/events/Events');var _coreEventsEvents2=_interopRequireDefault(_coreEventsEvents);var _coreFactoryMaker=require('../../core/FactoryMaker');var _coreFactoryMaker2=_interopRequireDefault(_coreFactoryMaker);var _coreDebug=require('../../core/Debug');var _coreDebug2=_interopRequireDefault(_coreDebug);var _MediaController=require('./MediaController');var _MediaController2=_interopRequireDefault(_MediaController);var _dashUtilsSegmentsUtils=require('../../dash/utils/SegmentsUtils');function ScheduleController(config){config = config || {};var context=this.context;var eventBus=(0,_coreEventBus2['default'])(context).getInstance();var metricsModel=config.metricsModel;var adapter=config.adapter;var dashMetrics=config.dashMetrics;var dashManifestModel=config.dashManifestModel;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 instance=undefined,logger=undefined,fragmentModel=undefined,currentRepresentationInfo=undefined,initialRequest=undefined,isStopped=undefined,playListMetrics=undefined,playListTraceMetrics=undefined,playListTraceMetricsClosed=undefined,isFragmentProcessingInProgress=undefined,timeToLoadDelay=undefined,scheduleTimeout=undefined,seekTarget=undefined,bufferLevelRule=undefined,nextFragmentRequestRule=undefined,lastFragmentRequest=undefined,topQualityIndex=undefined,lastInitQuality=undefined,replaceRequestArray=undefined,switchTrack=undefined,bufferResetInProgress=undefined,mediaRequest=undefined;function setup(){logger = (0,_coreDebug2['default'])(context).getInstance().getLogger(instance);resetInitialSettings();}function initialize(){fragmentModel = streamProcessor.getFragmentModel();bufferLevelRule = (0,_rulesSchedulingBufferLevelRule2['default'])(context).create({abrController:abrController,dashMetrics:dashMetrics,metricsModel:metricsModel,mediaPlayerModel:mediaPlayerModel,textController:textController});nextFragmentRequestRule = (0,_rulesSchedulingNextFragmentRequestRule2['default'])(context).create({adapter:adapter,textController:textController});if(dashManifestModel.getIsTextTrack(config.mimeType)){eventBus.on(_coreEventsEvents2['default'].TIMED_TEXT_REQUESTED,onTimedTextRequested,this);} //eventBus.on(Events.LIVE_EDGE_SEARCH_COMPLETED, onLiveEdgeSearchCompleted, this);
eventBus.on(_coreEventsEvents2['default'].QUALITY_CHANGE_REQUESTED,onQualityChanged,this);eventBus.on(_coreEventsEvents2['default'].DATA_UPDATE_STARTED,onDataUpdateStarted,this);eventBus.on(_coreEventsEvents2['default'].DATA_UPDATE_COMPLETED,onDataUpdateCompleted,this);eventBus.on(_coreEventsEvents2['default'].FRAGMENT_LOADING_COMPLETED,onFragmentLoadingCompleted,this);eventBus.on(_coreEventsEvents2['default'].STREAM_COMPLETED,onStreamCompleted,this);eventBus.on(_coreEventsEvents2['default'].STREAM_INITIALIZED,onStreamInitialized,this);eventBus.on(_coreEventsEvents2['default'].BUFFER_LEVEL_STATE_CHANGED,onBufferLevelStateChanged,this);eventBus.on(_coreEventsEvents2['default'].BUFFER_CLEARED,onBufferCleared,this);eventBus.on(_coreEventsEvents2['default'].BYTES_APPENDED_END_FRAGMENT,onBytesAppended,this);eventBus.on(_coreEventsEvents2['default'].INIT_REQUESTED,onInitRequested,this);eventBus.on(_coreEventsEvents2['default'].QUOTA_EXCEEDED,onQuotaExceeded,this);eventBus.on(_coreEventsEvents2['default'].PLAYBACK_SEEKING,onPlaybackSeeking,this);eventBus.on(_coreEventsEvents2['default'].PLAYBACK_STARTED,onPlaybackStarted,this);eventBus.on(_coreEventsEvents2['default'].PLAYBACK_RATE_CHANGED,onPlaybackRateChanged,this);eventBus.on(_coreEventsEvents2['default'].PLAYBACK_TIME_UPDATED,onPlaybackTimeUpdated,this);eventBus.on(_coreEventsEvents2['default'].URL_RESOLUTION_FAILED,onURLResolutionFailed,this);eventBus.on(_coreEventsEvents2['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');addPlaylistTraceMetrics();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() && !mediaPlayerModel.getScheduleWhilePaused() || (type === _constantsConstants2['default'].FRAGMENTED_TEXT || type === _constantsConstants2['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(_constantsConstants2['default'].VIDEO))){var getNextFragment=function getNextFragment(){var fragmentController=streamProcessor.getFragmentController();if(currentRepresentationInfo.quality !== lastInitQuality){logger.debug('Quality has changed, get init request for representationid = ' + currentRepresentationInfo.id);lastInitQuality = currentRepresentationInfo.quality;streamProcessor.switchInitData(currentRepresentationInfo.id);}else if(switchTrack){logger.debug('Switch track has been asked, get init request for ' + type + ' with representationid = ' + currentRepresentationInfo.id);bufferResetInProgress = mediaController.getSwitchMode(type) === _MediaController2['default'].TRACK_SWITCH_MODE_ALWAYS_REPLACE?true:false;streamProcessor.switchInitData(currentRepresentationInfo.id,bufferResetInProgress);lastInitQuality = currentRepresentationInfo.quality;switchTrack = false;}else {var replacement=replaceRequestArray.shift();if(fragmentController.isInitializationRequest(replacement)){ // To be sure the specific init segment had not already been loaded.
streamProcessor.switchInitData(replacement.representationId);}else {var request=undefined; // Don't schedule next fragments while pruning to avoid buffer inconsistencies
if(!streamProcessor.getBufferController().getIsPruningInProgress()){request = nextFragmentRequestRule.execute(streamProcessor,replacement);if(!request && streamInfo.manifestInfo && streamInfo.manifestInfo.isDynamic){logger.info('Playing at the bleeding live edge and frag is not available yet');}}if(request){logger.debug('getNextFragment - request is ' + request.url);fragmentModel.executeRequest(request);}else { // Use case - Playing at the bleeding live edge and frag is not available yet. Cycle back around.
setFragmentProcessState(false);startScheduleTimer(mediaPlayerModel.getLowLatencyEnabled()?100:500);}}}};setFragmentProcessState(true);if(!isReplacement && !switchTrack){abrController.checkPlaybackQuality(type);}getNextFragment();}else {startScheduleTimer(500);}}function validateExecutedFragmentRequest(){ // Validate that the fragment request executed and appended into the source buffer is as
// good of quality as the current quality and is the correct media track.
var safeBufferLevel=currentRepresentationInfo.fragmentDuration * 1.5;var request=fragmentModel.getRequests({state:_modelsFragmentModel2['default'].FRAGMENT_MODEL_EXECUTED,time:playbackController.getTime() + safeBufferLevel,threshold:0})[0];if(request && replaceRequestArray.indexOf(request) === -1 && !dashManifestModel.getIsTextTrack(type)){var fastSwitchModeEnabled=mediaPlayerModel.getFastSwitchEnabled();var bufferLevel=streamProcessor.getBufferLevel();var abandonmentState=abrController.getAbandonmentStateFor(type); // Only replace on track switch when NEVER_REPLACE
var 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 !== _AbrController2['default'].ABANDON_LOAD){replaceRequest(request);logger.debug('Reloading outdated fragment at index: ',request.index);}else if(request.quality > currentRepresentationInfo.quality){ // The buffer has better quality it in then what we would request so set append point to end of buffer!!
setSeekTarget(playbackController.getTime() + streamProcessor.getBufferLevel());}}}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=adapter.getInitRequest(streamProcessor,quality);if(request){setFragmentProcessState(true);request.url = (0,_dashUtilsSegmentsUtils.replaceTokenForTemplate)(request.url,'Bandwidth',currentRepresentationInfo?currentRepresentationInfo.bandwidth:null);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(),_voMetricsPlayList.PlayListTrace.REPRESENTATION_SWITCH_STOP_REASON);addPlaylistTraceMetrics();}function completeQualityChange(trigger){if(playbackController && fragmentModel){var item=fragmentModel.getRequests({state:_modelsFragmentModel2['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(_coreEventsEvents2['default'].TRACK_CHANGE_RENDERED,{mediaType:type,oldMediaInfo:lastFragmentRequest.mediaInfo,newMediaInfo:item.mediaInfo});}if((item.quality !== lastFragmentRequest.quality || item.adaptationIndex !== lastFragmentRequest.adaptationIndex) && trigger){eventBus.trigger(_coreEventsEvents2['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.getStreamProcessor() !== streamProcessor){return;}currentRepresentationInfo = adapter.convertDataToRepresentationInfo(e.currentRepresentation);}function onStreamInitialized(e){if(e.error || streamProcessor.getStreamInfo().id !== e.streamInfo.id){return;}currentRepresentationInfo = streamProcessor.getRepresentationInfo();if(initialRequest){if(playbackController.getIsDynamic()){timelineConverter.setTimeSyncCompleted(true);setLiveEdgeSeekTarget();}else {seekTarget = playbackController.getStreamStartTime(false);streamProcessor.getBufferController().setSeekStartTime(seekTarget);}}if(isStopped){start();}}function setLiveEdgeSeekTarget(){var liveEdgeFinder=streamProcessor.getLiveEdgeFinder();if(liveEdgeFinder){var liveEdge=liveEdgeFinder.getLiveEdge();var dvrWindowSize=currentRepresentationInfo.mediaInfo.streamInfo.manifestInfo.DVRWindowSize / 2;var startTime=liveEdge - playbackController.computeLiveDelay(currentRepresentationInfo.fragmentDuration,dvrWindowSize);var request=adapter.getFragmentRequest(streamProcessor,currentRepresentationInfo,startTime,{ignoreIsFinished:true});if(request){ // When low latency mode is selected but browser doesn't support fetch
// start at the beginning of the segment to avoid consuming the whole buffer
if(mediaPlayerModel.getLowLatencyEnabled()){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');}seekTarget = 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.
//in onPlaybackSeeking callback (StreamController), the detection of switch stream is done.
if(seekTarget > currentRepresentationInfo.mediaInfo.streamInfo.start + currentRepresentationInfo.mediaInfo.streamInfo.duration){playbackController.seek(seekTarget);}var manifestUpdateInfo=dashMetrics.getCurrentManifestUpdate(metricsModel.getMetricsFor(_constantsConstants2['default'].STREAM));metricsModel.updateManifestUpdateInfo(manifestUpdateInfo,{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',', Range:',e.request.range?e.request.range:'undefined');if(dashManifestModel.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);startScheduleTimer(0);}function onFragmentLoadingAbandoned(e){if(e.streamProcessor !== streamProcessor){return;}logger.info('onFragmentLoadingAbandoned for ' + type + ', request: ' + e.request.url + ' has been aborted');if(!playbackController.isSeeking() && !switchTrack){logger.info('onFragmentLoadingAbandoned for ' + type + ', 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){if(e.sender.getStreamProcessor() !== streamProcessor){return;}stop();}function onBufferCleared(e){if(e.sender.getStreamProcessor() !== streamProcessor){return;}if(e.unintended){ // There was an unintended buffer remove, probably creating a gap in the buffer, remove every saved request
streamProcessor.getFragmentModel().removeExecutedRequestsAfterTime(e.from,streamProcessor.getStreamInfo().duration);}else {streamProcessor.getFragmentModel().syncExecutedRequestsWithBufferedRange(streamProcessor.getBufferController().getBuffer().getAllBufferRanges(),streamProcessor.getStreamInfo().duration);}if(e.hasEnoughSpaceToAppend && isStopped){start();}}function onBufferLevelStateChanged(e){if(e.sender.getStreamProcessor() === streamProcessor && e.state === _BufferController2['default'].BUFFER_EMPTY && !playbackController.isSeeking()){logger.info('Buffer is empty! Stalling!');clearPlayListTraceMetrics(new Date(),_voMetricsPlayList.PlayListTrace.REBUFFERING_REASON);}}function onQuotaExceeded(e){if(e.sender.getStreamProcessor() !== streamProcessor){return;}stop();setFragmentProcessState(false);}function onURLResolutionFailed(){fragmentModel.abortRequests();stop();}function onTimedTextRequested(e){if(e.sender.getStreamProcessor() !== streamProcessor){return;} //if subtitles are disabled, do not download subtitles file.
if(textController.isTextEnabled()){getInitRequest(e.index);}}function onPlaybackStarted(){if(isStopped || !mediaPlayerModel.getScheduleWhilePaused()){start();}}function onPlaybackSeeking(e){seekTarget = e.seekTime;setTimeToLoadDelay(0);if(isStopped){start();}var manifestUpdateInfo=dashMetrics.getCurrentManifestUpdate(metricsModel.getMetricsFor(_constantsConstants2['default'].STREAM));var latency=currentRepresentationInfo.DVRWindow && playbackController?currentRepresentationInfo.DVRWindow.end - playbackController.getTime():NaN;metricsModel.updateManifestUpdateInfo(manifestUpdateInfo,{latency:latency}); //if, during the seek command, the scheduleController is waiting : stop waiting, request chunk as soon as possible
if(!isFragmentProcessingInProgress){startScheduleTimer(0);}else {logger.debug('onPlaybackSeeking for ' + type + ', call fragmentModel.abortRequests in order to seek quicker');fragmentModel.abortRequests();}}function onPlaybackRateChanged(e){if(playListTraceMetrics){playListTraceMetrics.playbackspeed = e.playbackRate.toString();}}function getSeekTarget(){return seekTarget;}function setSeekTarget(value){seekTarget = value;}function setTimeToLoadDelay(value){timeToLoadDelay = value;}function getTimeToLoadDelay(){return timeToLoadDelay;}function getBufferTarget(){return bufferLevelRule.getBufferTarget(streamProcessor,streamController.isTrackTypePresent(_constantsConstants2['default'].VIDEO));}function getType(){return type;}function setPlayList(playList){playListMetrics = playList;}function finalisePlayList(time,reason){clearPlayListTraceMetrics(time,reason);playListMetrics = null;}function clearPlayListTraceMetrics(endTime,stopreason){if(playListMetrics && playListTraceMetricsClosed === false){var startTime=playListTraceMetrics.start;var duration=endTime.getTime() - startTime.getTime();playListTraceMetrics.duration = duration;playListTraceMetrics.stopreason = stopreason;playListMetrics.trace.push(playListTraceMetrics);playListTraceMetricsClosed = true;}}function addPlaylistTraceMetrics(){if(playListMetrics && playListTraceMetricsClosed === true && currentRepresentationInfo){playListTraceMetricsClosed = false;playListTraceMetrics = new _voMetricsPlayList.PlayListTrace();playListTraceMetrics.representationid = currentRepresentationInfo.id;playListTraceMetrics.start = new Date();playListTraceMetrics.mstart = playbackController.getTime() * 1000;playListTraceMetrics.playbackspeed = playbackController.getPlaybackRate().toString();}}function resetInitialSettings(){isFragmentProcessingInProgress = false;timeToLoadDelay = 0;seekTarget = NaN;playListMetrics = null;playListTraceMetrics = null;playListTraceMetricsClosed = true;initialRequest = true;lastInitQuality = NaN;lastFragmentRequest = {mediaInfo:undefined,quality:NaN,adaptationIndex:NaN};topQualityIndex = {};replaceRequestArray = [];isStopped = true;switchTrack = false;bufferResetInProgress = false;mediaRequest = null;}function reset(){ //eventBus.off(Events.LIVE_EDGE_SEARCH_COMPLETED, onLiveEdgeSearchCompleted, this);
eventBus.off(_coreEventsEvents2['default'].DATA_UPDATE_STARTED,onDataUpdateStarted,this);eventBus.off(_coreEventsEvents2['default'].DATA_UPDATE_COMPLETED,onDataUpdateCompleted,this);eventBus.off(_coreEventsEvents2['default'].BUFFER_LEVEL_STATE_CHANGED,onBufferLevelStateChanged,this);eventBus.off(_coreEventsEvents2['default'].QUALITY_CHANGE_REQUESTED,onQualityChanged,this);eventBus.off(_coreEventsEvents2['default'].FRAGMENT_LOADING_COMPLETED,onFragmentLoadingCompleted,this);eventBus.off(_coreEventsEvents2['default'].STREAM_COMPLETED,onStreamCompleted,this);eventBus.off(_coreEventsEvents2['default'].STREAM_INITIALIZED,onStreamInitialized,this);eventBus.off(_coreEventsEvents2['default'].QUOTA_EXCEEDED,onQuotaExceeded,this);eventBus.off(_coreEventsEvents2['default'].BYTES_APPENDED_END_FRAGMENT,onBytesAppended,this);eventBus.off(_coreEventsEvents2['default'].BUFFER_CLEARED,onBufferCleared,this);eventBus.off(_coreEventsEvents2['default'].INIT_REQUESTED,onInitRequested,this);eventBus.off(_coreEventsEvents2['default'].PLAYBACK_RATE_CHANGED,onPlaybackRateChanged,this);eventBus.off(_coreEventsEvents2['default'].PLAYBACK_SEEKING,onPlaybackSeeking,this);eventBus.off(_coreEventsEvents2['default'].PLAYBACK_STARTED,onPlaybackStarted,this);eventBus.off(_coreEventsEvents2['default'].PLAYBACK_TIME_UPDATED,onPlaybackTimeUpdated,this);eventBus.off(_coreEventsEvents2['default'].URL_RESOLUTION_FAILED,onURLResolutionFailed,this);eventBus.off(_coreEventsEvents2['default'].FRAGMENT_LOADING_ABANDONED,onFragmentLoadingAbandoned,this);if(dashManifestModel.getIsTextTrack(type)){eventBus.off(_coreEventsEvents2['default'].TIMED_TEXT_REQUESTED,onTimedTextRequested,this);}stop();completeQualityChange(false);resetInitialSettings();}instance = {initialize:initialize,getType:getType,getSeekTarget:getSeekTarget,setSeekTarget:setSeekTarget,setTimeToLoadDelay:setTimeToLoadDelay,getTimeToLoadDelay:getTimeToLoadDelay,replaceRequest:replaceRequest,switchTrackAsked:switchTrackAsked,isStarted:isStarted,start:start,stop:stop,reset:reset,setPlayList:setPlayList,getBufferTarget:getBufferTarget,finalisePlayList:finalisePlayList};setup();return instance;}ScheduleController.__dashjs_factory_name = 'ScheduleController';exports['default'] = _coreFactoryMaker2['default'].getClassFactory(ScheduleController);module.exports = exports['default'];
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