streaming_utils_IsoFile.js
/**
* 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 IsoBox from '../vo/IsoBox';
import FactoryMaker from '../../core/FactoryMaker';
function IsoFile() {
let instance,
parsedIsoFile;
/**
* @param {string} type
* @returns {IsoBox|null}
* @memberof IsoFile#
*/
function getBox(type) {
if (!type || !parsedIsoFile || !parsedIsoFile.boxes || (parsedIsoFile.boxes.length === 0) || typeof parsedIsoFile.fetch !== 'function') return null;
return convertToDashIsoBox(parsedIsoFile.fetch(type));
}
/**
* @param {string} type
* @returns {Array|null} array of {@link IsoBox}
* @memberof IsoFile#
*/
function getBoxes(type) {
let boxes = [];
if (!type || !parsedIsoFile || typeof parsedIsoFile.fetchAll !== 'function') {
return boxes;
}
let boxData = parsedIsoFile.fetchAll(type);
let box;
for (let i = 0, ln = boxData.length; i < ln; i++) {
box = convertToDashIsoBox(boxData[i]);
if (box) {
boxes.push(box);
}
}
return boxes;
}
/**
* @param {string} value
* @memberof IsoFile#
*/
function setData(value) {
parsedIsoFile = value;
}
/**
* @returns {IsoBox|null}
* @memberof IsoFile#
*/
function getLastBox() {
if (!parsedIsoFile || !parsedIsoFile.boxes || !parsedIsoFile.boxes.length) return null;
let type = parsedIsoFile.boxes[parsedIsoFile.boxes.length - 1].type;
let boxes = getBoxes(type);
return boxes.length > 0 ? boxes[boxes.length - 1] : null;
}
function convertToDashIsoBox(boxData) {
if (!boxData) return null;
let box = new IsoBox(boxData);
if (boxData.hasOwnProperty('_incomplete')) {
box.isComplete = !boxData._incomplete;
}
return box;
}
instance = {
getBox: getBox,
getBoxes: getBoxes,
setData: setData,
getLastBox: getLastBox
};
return instance;
}
IsoFile.__dashjs_factory_name = 'IsoFile';
export default FactoryMaker.getClassFactory(IsoFile);