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Fix tkhd issue for Apple ecosystem compatibility (#391)

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* fix: ensure at least one track per type is enabled for Apple ecosystem compatibility

* Add ensureOneEnabledTrack() to ISOBMFF muxer

* Add test case

---------

Co-authored-by: Vanilagy <[email protected]>
This commit is contained in:
StringWeaver
2026-06-01 22:55:02 +02:00
committed by GitHub
co-authored by Vanilagy
parent c6c768d93e
commit 96d0d9fb22
3 changed files with 71 additions and 7 deletions
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src/isobmff/isobmff-boxes.ts
+8 -6
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@@ -378,12 +378,14 @@ export const free = (size: number): Box => ({ type: 'free', size });
* Movie Box: Used to specify the information that defines a movie - that is, the information that allows
* an application to interpret the sample data that is stored elsewhere.
*/
export const moov = (muxer: IsobmffMuxer) => box('moov', undefined, [
mvhd(muxer.creationTime, muxer.trackDatas),
...muxer.trackDatas.map(x => trak(x, muxer.creationTime)),
muxer.isFragmented ? mvex(muxer.trackDatas) : null,
udta(muxer),
]);
export const moov = (muxer: IsobmffMuxer) => {
return box('moov', undefined, [
mvhd(muxer.creationTime, muxer.trackDatas),
...muxer.trackDatas.map(x => trak(x, muxer.creationTime)),
muxer.isFragmented ? mvex(muxer.trackDatas) : null,
udta(muxer),
]);
};
/** Movie Header Box: Used to specify the characteristics of the entire movie, such as timescale and duration. */
export const mvhd = (