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feat: Add support for custom MP4 metadata with mdta format (#132)

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* feat: Add support for custom MP4 metadata with mdta format

- Add metadataFormat option ('mdir' | 'mdta') to IsobmffOutputFormatOptions
- Implement complete mdta format with keys box generation
- Enable custom metadata fields readable by ffmpeg/ffprobe
- Maintain backward compatibility with default mdir format

* Refactor ISOBMFF metadata tag writing logic

* Autism

---------

Co-authored-by: tanfu <[email protected]>
Co-authored-by: Vanilagy <[email protected]>
This commit is contained in:
DragonZ
2025-09-18 23:41:08 +02:00
committed by GitHub
co-authored by tanfu Vanilagy
parent d426d36386
commit 420423bc0f
7 changed files with 141 additions and 65 deletions
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src/isobmff/isobmff-muxer.ts
+1 -1
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@@ -138,7 +138,7 @@ export const intoTimescale = (timeInSeconds: number, timescale: number, round =
};
export class IsobmffMuxer extends Muxer {
private format: IsobmffOutputFormat;
format: IsobmffOutputFormat;
private writer: Writer;
private boxWriter: IsobmffBoxWriter;
private fastStart: NonNullable<IsobmffOutputFormatOptions['fastStart']>;