@l5i/dashjs
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A reference client implementation for the playback of MPEG DASH via Javascript and compliant browsers.
36 lines (35 loc) • 3.34 kB
JavaScript
/**
* 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 _coreFactoryMaker=require('../../core/FactoryMaker');var _coreFactoryMaker2=_interopRequireDefault(_coreFactoryMaker); /**
* @param {Object} config
* @returns {{initialize: initialize, getLiveEdge: getLiveEdge, reset: reset}|*}
* @constructor
*/function LiveEdgeFinder(config){config = config || {};var instance=undefined;var timelineConverter=config.timelineConverter;var streamProcessor=config.streamProcessor;function checkConfig(){if(!timelineConverter || !timelineConverter.hasOwnProperty('getExpectedLiveEdge') || !streamProcessor || !streamProcessor.hasOwnProperty('getRepresentationInfo')){throw new Error('Missing config parameter(s)');}}function getLiveEdge(){checkConfig();var representationInfo=streamProcessor.getRepresentationInfo();var liveEdge=representationInfo.DVRWindow.end;if(representationInfo.useCalculatedLiveEdgeTime){liveEdge = timelineConverter.getExpectedLiveEdge();timelineConverter.setClientTimeOffset(liveEdge - representationInfo.DVRWindow.end);}return liveEdge;}function reset(){timelineConverter = null;streamProcessor = null;}instance = {getLiveEdge:getLiveEdge,reset:reset};return instance;}LiveEdgeFinder.__dashjs_factory_name = 'LiveEdgeFinder';exports['default'] = _coreFactoryMaker2['default'].getClassFactory(LiveEdgeFinder);module.exports = exports['default'];
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