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Add HLS master playlist generation, add multi-playlistadd output track grouping, add multi-playlist HLS files, add configurable playlist and segment names, add TrackDisposition.primary

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Vanilagy
2026-03-24 15:53:21 +01:00
parent c91718cdba
commit 3e87d747e6
17 changed files with 1777 additions and 117 deletions
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src/hls/hls-demuxer.ts
+31 -1
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@@ -24,6 +24,7 @@ type InternalTrack = {
inputTrack: InputTrack | null;
backingTrack: InputTrack | null;
default: boolean;
autoselect: boolean;
languageCode: string;
lineNumber: number;
@@ -339,6 +340,7 @@ export class HlsDemuxer extends Demuxer {
inputTrack: null,
backingTrack: null,
default: true,
autoselect: true,
languageCode: UNDETERMINED_LANGUAGE,
lineNumber: variantStream.lineNumber,
fullPath: variantStream.fullPath,
@@ -390,6 +392,9 @@ export class HlsDemuxer extends Demuxer {
inputTrack: null,
backingTrack: null,
default: getMediaTagDefault(mediaTag.attributes),
// Autoselect is inferred to be true if the default is true
autoselect: getMediaTagDefault(mediaTag.attributes)
|| getMediaTagAutoselect(mediaTag.attributes),
languageCode: preprocessLanguageCode(mediaTag.attributes.get('language')),
lineNumber: mediaTag.lineNumber,
fullPath: mediaTag.fullPath ?? variantStream.fullPath,
@@ -432,6 +437,7 @@ export class HlsDemuxer extends Demuxer {
inputTrack: null,
backingTrack: null,
default: true,
autoselect: true,
languageCode: UNDETERMINED_LANGUAGE,
lineNumber: variantStream.lineNumber,
fullPath: variantStream.fullPath,
@@ -480,6 +486,9 @@ export class HlsDemuxer extends Demuxer {
inputTrack: null,
backingTrack: null,
default: getMediaTagDefault(mediaTag.attributes),
// Autoselect is inferred to be true if the default is true
autoselect: getMediaTagDefault(mediaTag.attributes)
|| getMediaTagAutoselect(mediaTag.attributes),
languageCode: preprocessLanguageCode(mediaTag.attributes.get('language')),
lineNumber: mediaTag.lineNumber,
fullPath: mediaTag.fullPath ?? variantStream.fullPath,
@@ -634,7 +643,9 @@ abstract class HlsInputTrackBacking implements InputTrackBacking {
getDisposition(): TrackDisposition {
return {
...DEFAULT_TRACK_DISPOSITION,
default: this.internalTrack.default,
// Meanings are swapped in HLS: "Default" means that a track is the primary track.
default: this.internalTrack.autoselect,
primary: this.internalTrack.default,
};
}
@@ -943,6 +954,25 @@ const getMediaTagDefault = (attributes: AttributeList) => {
);
};
const getMediaTagAutoselect = (attributes: AttributeList) => {
const value = attributes.get('autoselect');
if (value === null) {
return false;
}
const normalized = value.toUpperCase();
if (normalized === 'YES') {
return true;
}
if (normalized === 'NO') {
return false;
}
throw new Error(
`Invalid M3U8 file; #EXT-X-MEDIA AUTOSELECT attribute must be YES or NO, got "${value}".`,
);
};
const preprocessLanguageCode = (code: string | null) => {
if (code === null) {
return UNDETERMINED_LANGUAGE;