text: /**
   * 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.
   */import Constants from'../../constants/Constants';import FactoryMaker from'../../../core/FactoryMaker';function BufferLevelRule(config){config=config||{};const dashMetrics=config.dashMetrics;const metricsModel=config.metricsModel;const mediaPlayerModel=config.mediaPlayerModel;const textController=config.textController;const abrController=config.abrController;function setup(){}function execute(streamProcessor,videoTrackPresent){if(!streamProcessor){return true;}const bufferLevel=dashMetrics.getCurrentBufferLevel(metricsModel.getReadOnlyMetricsFor(streamProcessor.getType()));return bufferLevel<getBufferTarget(streamProcessor,videoTrackPresent);}function getBufferTarget(streamProcessor,videoTrackPresent){let bufferTarget=NaN;if(!streamProcessor){return bufferTarget;}const type=streamProcessor.getType();const representationInfo=streamProcessor.getRepresentationInfo();if(type===Constants.FRAGMENTED_TEXT){bufferTarget=textController.isTextEnabled()?representationInfo.fragmentDuration:0;}else if(type===Constants.AUDIO&&videoTrackPresent){const videoBufferLevel=dashMetrics.getCurrentBufferLevel(metricsModel.getReadOnlyMetricsFor(Constants.VIDEO));if(isNaN(representationInfo.fragmentDuration)){bufferTarget=videoBufferLevel;}else{bufferTarget=Math.max(videoBufferLevel,representationInfo.fragmentDuration);}}else{const streamInfo=representationInfo.mediaInfo.streamInfo;if(abrController.isPlayingAtTopQuality(streamInfo)){const isLongFormContent=streamInfo.manifestInfo.duration>=mediaPlayerModel.getLongFormContentDurationThreshold();bufferTarget=isLongFormContent?mediaPlayerModel.getBufferTimeAtTopQualityLongForm():mediaPlayerModel.getBufferTimeAtTopQuality();}else{bufferTarget=mediaPlayerModel.getStableBufferTime();}}return bufferTarget;}const instance={execute:execute,getBufferTarget:getBufferTarget};setup();return instance;}BufferLevelRule.__dashjs_factory_name='BufferLevelRule';export default FactoryMaker.getClassFactory(BufferLevelRule);
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