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Explicitly model the supported codecs per output format

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This commit is contained in:
Vanilagy
2025-01-02 21:03:17 +01:00
parent 2471f55f20
commit 74369ee108
7 changed files with 154 additions and 42 deletions
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src/output.ts
+53 -1
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@@ -44,6 +44,10 @@ export type SubtitleTrackMetadata = {};
/** @public */
export class Output {
/** @internal */
_format: OutputFormat;
/** @internal */
_target: Target;
/** @internal */
_muxer: Muxer;
/** @internal */
@@ -75,6 +79,9 @@ export class Output {
}
options.target._output = this;
this._format = options.format;
this._target = options.target;
this._writer = options.target._createWriter();
this._muxer = options.format._createMuxer(this);
}
@@ -145,7 +152,52 @@ export class Output {
metadata,
} as OutputTrack;
this._muxer.beforeTrackAdd(track);
if (track.type === 'video') {
const supportedVideoCodecs = this._format.getSupportedVideoCodecs();
if (supportedVideoCodecs.length === 0) {
throw new Error(
`${this._format._getName()} does not support video tracks.`
+ this._format._codecUnsupportedHint(track.source._codec),
);
} else if (!supportedVideoCodecs.includes(track.source._codec)) {
throw new Error(
`Codec '${track.source._codec}' cannot be contained within ${this._format._getName()}. Supported`
+ ` video codecs are: ${supportedVideoCodecs.map(codec => `'${codec}'`).join(', ')}.`
+ this._format._codecUnsupportedHint(track.source._codec),
);
}
} else if (track.type === 'audio') {
const supportedAudioCodecs = this._format.getSupportedAudioCodecs();
if (supportedAudioCodecs.length === 0) {
throw new Error(
`${this._format._getName()} does not support audio tracks.`
+ this._format._codecUnsupportedHint(track.source._codec),
);
} else if (!supportedAudioCodecs.includes(track.source._codec)) {
throw new Error(
`Codec '${track.source._codec}' cannot be contained within ${this._format._getName()}. Supported`
+ ` audio codecs are: ${supportedAudioCodecs.map(codec => `'${codec}'`).join(', ')}.`
+ this._format._codecUnsupportedHint(track.source._codec),
);
}
} else if (track.type === 'subtitle') {
const supportedSubtitleCodecs = this._format.getSupportedSubtitleCodecs();
if (supportedSubtitleCodecs.length === 0) {
throw new Error(
`${this._format._getName()} does not support subtitle tracks.`
+ this._format._codecUnsupportedHint(track.source._codec),
);
} else if (!supportedSubtitleCodecs.includes(track.source._codec)) {
throw new Error(
`Codec '${track.source._codec}' cannot be contained within ${this._format._getName()}. Supported`
+ ` subtitle codecs are: ${supportedSubtitleCodecs.map(codec => `'${codec}'`).join(', ')}.`
+ this._format._codecUnsupportedHint(track.source._codec),
);
}
}
this._tracks.push(track);
source._connectedTrack = track;