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* 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 FactoryMaker from '../../core/FactoryMaker.js';
import Constants from '../../streaming/constants/Constants.js';
import {getIndexBasedSegment} from './SegmentsUtils.js';
function ListSegmentsGetter(config, isDynamic) {
config = config || {};
const timelineConverter = config.timelineConverter;
let instance;
function checkConfig() {
if (!timelineConverter || !timelineConverter.hasOwnProperty('calcPeriodRelativeTimeFromMpdRelativeTime')) {
throw new Error(Constants.MISSING_CONFIG_ERROR);
}
}
function getMediaFinishedInformation(representation) {
const mediaFinishedInformation = { numberOfSegments: 0, mediaTimeOfLastSignaledSegment: NaN }
Iif (!representation) {
return mediaFinishedInformation;
}
const list = representation.adaptation.period.mpd.manifest.Period[representation.adaptation.period.index].AdaptationSet[representation.adaptation.index].Representation[representation.index].SegmentList;
const startNumber = representation && !isNaN(representation.startNumber) ? representation.startNumber : 1;
const offset = Math.max(startNumber - 1, 0);
mediaFinishedInformation.numberOfSegments = offset + list.SegmentURL.length;
return mediaFinishedInformation
}
function getSegmentByIndex(representation, index) {
checkConfig();
if (!representation) {
return null;
}
const list = representation.adaptation.period.mpd.manifest.Period[representation.adaptation.period.index].AdaptationSet[representation.adaptation.index].Representation[representation.index].SegmentList;
const len = list.SegmentURL.length;
const startNumber = representation && !isNaN(representation.startNumber) ? representation.startNumber : 1;
const offsetToSubtract = Math.max(startNumber - 1, 0);
const relativeIndex = Math.max(index - offsetToSubtract, 0);
let segment = null;
if (relativeIndex < len) {
const s = list.SegmentURL[relativeIndex];
segment = getIndexBasedSegment({
index ,
isDynamic,
mediaRange: s.mediaRange,
mediaTime: (startNumber + index - 1) * representation.segmentDuration,
representation,
timelineConverter,
});
if (segment) {
segment.media = s.media ? s.media : '';
segment.indexRange = s.indexRange;
}
}
return segment;
}
function getSegmentByTime(representation, requestedTime) {
checkConfig();
Iif (!representation) {
return null;
}
const duration = representation.segmentDuration;
if (isNaN(duration)) {
return null;
}
const periodTime = timelineConverter.calcPeriodRelativeTimeFromMpdRelativeTime(representation, requestedTime);
const index = Math.floor(periodTime / duration);
return getSegmentByIndex(representation, index);
}
instance = {
getSegmentByIndex,
getSegmentByTime,
getMediaFinishedInformation
};
return instance;
}
ListSegmentsGetter.__dashjs_factory_name = 'ListSegmentsGetter';
const factory = FactoryMaker.getClassFactory(ListSegmentsGetter);
export default factory;
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