@l5i/dashjs/build/es5/src/streaming/ManifestLoader.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 _controllersXlinkController=require('./controllers/XlinkController');var _controllersXlinkController2=_interopRequireDefault(_controllersXlinkController);var _netHTTPLoader=require('./net/HTTPLoader');var _netHTTPLoader2=_interopRequireDefault(_netHTTPLoader);var _utilsURLUtils=require('./utils/URLUtils');var _utilsURLUtils2=_interopRequireDefault(_utilsURLUtils);var _voTextRequest=require('./vo/TextRequest');var _voTextRequest2=_interopRequireDefault(_voTextRequest);var _voDashJSError=require('./vo/DashJSError');var _voDashJSError2=_interopRequireDefault(_voDashJSError);var _voMetricsHTTPRequest=require('./vo/metrics/HTTPRequest');var _coreEventBus=require('../core/EventBus');var _coreEventBus2=_interopRequireDefault(_coreEventBus);var _coreEventsEvents=require('../core/events/Events');var _coreEventsEvents2=_interopRequireDefault(_coreEventsEvents);var _coreErrorsErrors=require('../core/errors/Errors');var _coreErrorsErrors2=_interopRequireDefault(_coreErrorsErrors);var _coreFactoryMaker=require('../core/FactoryMaker');var _coreFactoryMaker2=_interopRequireDefault(_coreFactoryMaker);var _dashParserDashParser=require('../dash/parser/DashParser');var _dashParserDashParser2=_interopRequireDefault(_dashParserDashParser);var _coreDebug=require('../core/Debug');var _coreDebug2=_interopRequireDefault(_coreDebug);function ManifestLoader(config){config = config || {};var context=this.context;var eventBus=(0,_coreEventBus2['default'])(context).getInstance();var urlUtils=(0,_utilsURLUtils2['default'])(context).getInstance();var instance=undefined,logger=undefined,httpLoader=undefined,xlinkController=undefined,parser=undefined;var mssHandler=config.mssHandler;var errHandler=config.errHandler;function setup(){logger = (0,_coreDebug2['default'])(context).getInstance().getLogger(instance);eventBus.on(_coreEventsEvents2['default'].XLINK_READY,onXlinkReady,instance);httpLoader = (0,_netHTTPLoader2['default'])(context).create({errHandler:errHandler,metricsModel:config.metricsModel,mediaPlayerModel:config.mediaPlayerModel,requestModifier:config.requestModifier});xlinkController = (0,_controllersXlinkController2['default'])(context).create({errHandler:errHandler,metricsModel:config.metricsModel,mediaPlayerModel:config.mediaPlayerModel,requestModifier:config.requestModifier});parser = null;}function onXlinkReady(event){eventBus.trigger(_coreEventsEvents2['default'].INTERNAL_MANIFEST_LOADED,{manifest:event.manifest});}function createParser(data){var parser=null; // Analyze manifest content to detect protocol and select appropriate parser
if(data.indexOf('SmoothStreamingMedia') > -1){ //do some business to transform it into a Dash Manifest
if(mssHandler){parser = mssHandler.createMssParser();mssHandler.registerEvents();}return parser;}else if(data.indexOf('MPD') > -1){return (0,_dashParserDashParser2['default'])(context).create();}else {return parser;}}function load(url){var request=new _voTextRequest2['default'](url,_voMetricsHTTPRequest.HTTPRequest.MPD_TYPE);httpLoader.load({request:request,success:function success(data,textStatus,responseURL){ // Manage situations in which success is called after calling reset
if(!xlinkController)return;var actualUrl=undefined,baseUri=undefined,manifest=undefined; // Handle redirects for the MPD - as per RFC3986 Section 5.1.3
// also handily resolves relative MPD URLs to absolute
if(responseURL && responseURL !== url){baseUri = urlUtils.parseBaseUrl(responseURL);actualUrl = responseURL;}else { // usually this case will be caught and resolved by
// responseURL above but it is not available for IE11 and Edge/12 and Edge/13
// baseUri must be absolute for BaseURL resolution later
if(urlUtils.isRelative(url)){url = urlUtils.resolve(url,window.location.href);}baseUri = urlUtils.parseBaseUrl(url);} // Create parser according to manifest type
if(parser === null){parser = createParser(data);}if(parser === null){eventBus.trigger(_coreEventsEvents2['default'].INTERNAL_MANIFEST_LOADED,{manifest:null,error:new _voDashJSError2['default'](_coreErrorsErrors2['default'].MANIFEST_LOADER_PARSING_FAILURE_ERROR_CODE,_coreErrorsErrors2['default'].MANIFEST_LOADER_PARSING_FAILURE_ERROR_MESSAGE + ('' + url))});return;} // init xlinkcontroller with matchers and iron object from created parser
xlinkController.setMatchers(parser.getMatchers());xlinkController.setIron(parser.getIron());try{manifest = parser.parse(data);}catch(e) {eventBus.trigger(_coreEventsEvents2['default'].INTERNAL_MANIFEST_LOADED,{manifest:null,error:new _voDashJSError2['default'](_coreErrorsErrors2['default'].MANIFEST_LOADER_PARSING_FAILURE_ERROR_CODE,_coreErrorsErrors2['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)
if(!manifest.originalUrl){manifest.originalUrl = manifest.url;} // In the following, we only use the first Location entry even if many are available
// Compare with ManifestUpdater/DashManifestModel
if(manifest.hasOwnProperty(_constantsConstants2['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);}else {eventBus.trigger(_coreEventsEvents2['default'].INTERNAL_MANIFEST_LOADED,{manifest:null,error:new _voDashJSError2['default'](_coreErrorsErrors2['default'].MANIFEST_LOADER_PARSING_FAILURE_ERROR_CODE,_coreErrorsErrors2['default'].MANIFEST_LOADER_PARSING_FAILURE_ERROR_MESSAGE + ('' + url))});}},error:function error(request,statusText,errorText){eventBus.trigger(_coreEventsEvents2['default'].INTERNAL_MANIFEST_LOADED,{manifest:null,error:new _voDashJSError2['default'](_coreErrorsErrors2['default'].MANIFEST_LOADER_LOADING_FAILURE_ERROR_CODE,_coreErrorsErrors2['default'].MANIFEST_LOADER_LOADING_FAILURE_ERROR_MESSAGE + (url + ', ' + errorText))});}});}function reset(){eventBus.off(_coreEventsEvents2['default'].XLINK_READY,onXlinkReady,instance);if(xlinkController){xlinkController.reset();xlinkController = null;}if(httpLoader){httpLoader.abort();httpLoader = null;}if(mssHandler){mssHandler.reset();}}instance = {load:load,reset:reset};setup();return instance;}ManifestLoader.__dashjs_factory_name = 'ManifestLoader';var factory=_coreFactoryMaker2['default'].getClassFactory(ManifestLoader);exports['default'] = factory;module.exports = exports['default'];
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