@l5i/dashjs/build/es5/src/streaming/utils/BaseURLSelector.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 _coreErrorsErrors=require('../../core/errors/Errors');var _coreErrorsErrors2=_interopRequireDefault(_coreErrorsErrors);var _coreEventBus=require('../../core/EventBus');var _coreEventBus2=_interopRequireDefault(_coreEventBus);var _coreEventsEvents=require('../../core/events/Events');var _coreEventsEvents2=_interopRequireDefault(_coreEventsEvents);var _controllersBlacklistController=require('../controllers/BlacklistController');var _controllersBlacklistController2=_interopRequireDefault(_controllersBlacklistController);var _baseUrlResolutionDVBSelector=require('./baseUrlResolution/DVBSelector');var _baseUrlResolutionDVBSelector2=_interopRequireDefault(_baseUrlResolutionDVBSelector);var _baseUrlResolutionBasicSelector=require('./baseUrlResolution/BasicSelector');var _baseUrlResolutionBasicSelector2=_interopRequireDefault(_baseUrlResolutionBasicSelector);var _coreFactoryMaker=require('../../core/FactoryMaker');var _coreFactoryMaker2=_interopRequireDefault(_coreFactoryMaker);var _voDashJSError=require('../vo/DashJSError');var _voDashJSError2=_interopRequireDefault(_voDashJSError);function BaseURLSelector(){var context=this.context;var eventBus=(0,_coreEventBus2['default'])(context).getInstance();var dashManifestModel=undefined;var instance=undefined,serviceLocationBlacklistController=undefined,basicSelector=undefined,dvbSelector=undefined,selector=undefined;function setup(){serviceLocationBlacklistController = (0,_controllersBlacklistController2['default'])(context).create({updateEventName:_coreEventsEvents2['default'].SERVICE_LOCATION_BLACKLIST_CHANGED,addBlacklistEventName:_coreEventsEvents2['default'].SERVICE_LOCATION_BLACKLIST_ADD});basicSelector = (0,_baseUrlResolutionBasicSelector2['default'])(context).create({blacklistController:serviceLocationBlacklistController});dvbSelector = (0,_baseUrlResolutionDVBSelector2['default'])(context).create({blacklistController:serviceLocationBlacklistController});selector = basicSelector;}function setConfig(config){if(config.selector){selector = config.selector;}if(config.dashManifestModel){dashManifestModel = config.dashManifestModel;}}function checkConfig(){if(!dashManifestModel || !dashManifestModel.hasOwnProperty('getIsDVB')){throw new Error('Missing config parameter(s)');}}function chooseSelectorFromManifest(manifest){checkConfig();if(dashManifestModel.getIsDVB(manifest)){selector = dvbSelector;}else {selector = 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
// @priority attribute value, then that choice should be re-used if the selection needs to be made again
// unless the blacklist has been modified or the available BaseURLs have changed.
if(!isNaN(selectedIdx)){return baseUrls[selectedIdx];}var selectedBaseUrl=selector.select(baseUrls);if(!selectedBaseUrl){eventBus.trigger(_coreEventsEvents2['default'].URL_RESOLUTION_FAILED,{error:new _voDashJSError2['default'](_coreErrorsErrors2['default'].URL_RESOLUTION_FAILED_GENERIC_ERROR_CODE,_coreErrorsErrors2['default'].URL_RESOLUTION_FAILED_GENERIC_ERROR_MESSAGE)});if(selector === basicSelector){reset();}return;}data.selectedIdx = baseUrls.indexOf(selectedBaseUrl);return selectedBaseUrl;}function reset(){serviceLocationBlacklistController.reset();}instance = {chooseSelectorFromManifest:chooseSelectorFromManifest,select:select,reset:reset,setConfig:setConfig};setup();return instance;}BaseURLSelector.__dashjs_factory_name = 'BaseURLSelector';exports['default'] = _coreFactoryMaker2['default'].getClassFactory(BaseURLSelector);module.exports = exports['default'];
//# sourceMappingURL=BaseURLSelector.js.map