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Add support for multi-audio language videos.

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Kavin
2022-11-15 20:58:30 +00:00
parent 0e042244e8
commit 5a268b26bd
2 changed files with 51 additions and 27 deletions
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66
src/utils/DashUtils.js
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@@ -42,55 +42,69 @@ const DashUtils = {
},
generate_adaptation_set(VideoFormatArray) {
const adaptationSets = [];
const mimeTypes = [];
const mimeObjects = [[]];
// sort the formats by mime types
let mimeAudioObjs = [];
VideoFormatArray.forEach(videoFormat => {
// the dual formats should not be used
if (videoFormat.mimeType.indexOf("video") != -1 && !videoFormat.videoOnly) {
return;
}
// if these properties are not available, then we skip it because we cannot set these properties
//if (!(videoFormat.hasOwnProperty('initRange') && videoFormat.hasOwnProperty('indexRange'))) {
// return
//}
const audioTrackId = videoFormat.audioTrackId;
const mimeType = videoFormat.mimeType;
const mimeTypeIndex = mimeTypes.indexOf(mimeType);
if (mimeTypeIndex > -1) {
mimeObjects[mimeTypeIndex].push(videoFormat);
} else {
mimeTypes.push(mimeType);
mimeObjects.push([]);
mimeObjects[mimeTypes.length - 1].push(videoFormat);
for (let i = 0; i < mimeAudioObjs.length; i++) {
const mimeAudioObj = mimeAudioObjs[i];
if (mimeAudioObj.audioTrackId == audioTrackId && mimeAudioObj.mimeType == mimeType) {
mimeAudioObj.videoFormats.push(videoFormat);
return;
}
}
mimeAudioObjs.push({
audioTrackId,
mimeType,
videoFormats: [videoFormat],
});
});
// for each MimeType generate a new Adaptation set with Representations as sub elements
for (let i = 0; i < mimeTypes.length; i++) {
let isVideoFormat = false;
mimeAudioObjs.forEach(mimeAudioObj => {
const adapSet = {
type: "element",
name: "AdaptationSet",
attributes: {
id: i,
mimeType: mimeTypes[i],
id: mimeAudioObj.audioTrackId,
lang: mimeAudioObj.audioTrackId?.substr(0, 2),
mimeType: mimeAudioObj.mimeType,
startWithSAP: "1",
subsegmentAlignment: "true",
},
elements: [],
};
if (!mimeTypes[i].includes("audio")) {
adapSet.attributes.scanType = "progressive";
let isVideoFormat = false;
if (mimeAudioObj.mimeType.includes("video")) {
isVideoFormat = true;
}
mimeObjects[i].forEach(format => {
if (isVideoFormat) {
adapSet.attributes.scanType = "progressive";
}
for (var i = 0; i < mimeAudioObj.videoFormats.length; i++) {
const videoFormat = mimeAudioObj.videoFormats[i];
if (isVideoFormat) {
adapSet.elements.push(this.generate_representation_video(format));
adapSet.elements.push(this.generate_representation_video(videoFormat));
} else {
adapSet.elements.push(this.generate_representation_audio(format));
adapSet.elements.push(this.generate_representation_audio(videoFormat));
}
});
}
adaptationSets.push(adapSet);
}
});
return adaptationSets;
},
generate_representation_audio(Format) {