@l5i/dashjs
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A reference client implementation for the playback of MPEG DASH via Javascript and compliant browsers.
35 lines (34 loc) • 5.44 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.
*/ /**
* @class
* @ignore
*/'use strict';Object.defineProperty(exports,'__esModule',{value:true});var _createClass=(function(){function defineProperties(target,props){for(var i=0;i < props.length;i++) {var descriptor=props[i];descriptor.enumerable = descriptor.enumerable || false;descriptor.configurable = true;if('value' in descriptor)descriptor.writable = true;Object.defineProperty(target,descriptor.key,descriptor);}}return function(Constructor,protoProps,staticProps){if(protoProps)defineProperties(Constructor.prototype,protoProps);if(staticProps)defineProperties(Constructor,staticProps);return Constructor;};})();function _classCallCheck(instance,Constructor){if(!(instance instanceof Constructor)){throw new TypeError('Cannot call a class as a function');}}var IsoBox=(function(){function IsoBox(boxData){_classCallCheck(this,IsoBox);this.offset = boxData._offset;this.type = boxData.type;this.size = boxData.size;this.boxes = [];if(boxData.boxes){for(var i=0;i < boxData.boxes.length;i++) {this.boxes.push(new IsoBox(boxData.boxes[i]));}}this.isComplete = true;switch(boxData.type){case 'sidx':this.timescale = boxData.timescale;this.earliest_presentation_time = boxData.earliest_presentation_time;this.first_offset = boxData.first_offset;this.references = boxData.references;if(boxData.references){this.references = [];for(var i=0;i < boxData.references.length;i++) {var reference={reference_type:boxData.references[i].reference_type,referenced_size:boxData.references[i].referenced_size,subsegment_duration:boxData.references[i].subsegment_duration};this.references.push(reference);}}break;case 'emsg':this.id = boxData.id;this.value = boxData.value;this.timescale = boxData.timescale;this.scheme_id_uri = boxData.scheme_id_uri;this.presentation_time_delta = boxData.version === 1?boxData.presentation_time:boxData.presentation_time_delta;this.event_duration = boxData.event_duration;this.message_data = boxData.message_data;break;case 'mdhd':this.timescale = boxData.timescale;break;case 'mfhd':this.sequence_number = boxData.sequence_number;break;case 'subs':this.entry_count = boxData.entry_count;this.entries = boxData.entries;break;case 'tfhd':this.base_data_offset = boxData.base_data_offset;this.sample_description_index = boxData.sample_description_index;this.default_sample_duration = boxData.default_sample_duration;this.default_sample_size = boxData.default_sample_size;this.default_sample_flags = boxData.default_sample_flags;this.flags = boxData.flags;break;case 'tfdt':this.version = boxData.version;this.baseMediaDecodeTime = boxData.baseMediaDecodeTime;this.flags = boxData.flags;break;case 'trun':this.sample_count = boxData.sample_count;this.first_sample_flags = boxData.first_sample_flags;this.data_offset = boxData.data_offset;this.flags = boxData.flags;this.samples = boxData.samples;if(boxData.samples){this.samples = [];for(var i=0,ln=boxData.samples.length;i < ln;i++) {var sample={sample_size:boxData.samples[i].sample_size,sample_duration:boxData.samples[i].sample_duration,sample_composition_time_offset:boxData.samples[i].sample_composition_time_offset};this.samples.push(sample);}}break;}}_createClass(IsoBox,[{key:'getChildBox',value:function getChildBox(type){for(var i=0;i < this.boxes.length;i++) {if(this.boxes[i].type === type){return this.boxes[i];}}}},{key:'getChildBoxes',value:function getChildBoxes(type){var boxes=[];for(var i=0;i < this.boxes.length;i++) {if(this.boxes[i].type === type){boxes.push(this.boxes[i]);}}return boxes;}}]);return IsoBox;})();exports['default'] = IsoBox;module.exports = exports['default'];
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