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Add setting track language code, add proper AV1 CodecPrivate for Matroska muxer

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Vanilagy
2025-01-15 20:00:29 +01:00
parent 9af3e6eb66
commit 2bec661985
7 changed files with 120 additions and 59 deletions
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src/output.ts
+21 -13
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@@ -33,14 +33,28 @@ export type OutputAudioTrack = OutputTrack & { type: 'audio' };
export type OutputSubtitleTrack = OutputTrack & { type: 'subtitle' };
/** @public */
export type VideoTrackMetadata = {
rotation?: 0 | 90 | 180 | 270 | TransformationMatrix; // TODO respect this field for Matroska
export type BaseTrackMetadata = {
languageCode?: string;
};
/** @public */
export type VideoTrackMetadata = BaseTrackMetadata & {
rotation?: 0 | 90 | 180 | 270 | TransformationMatrix;
frameRate?: number;
};
/** @public */
export type AudioTrackMetadata = {};
export type AudioTrackMetadata = BaseTrackMetadata & {};
/** @public */
export type SubtitleTrackMetadata = {};
export type SubtitleTrackMetadata = BaseTrackMetadata & {};
const validateBaseTrackMetadata = (metadata: BaseTrackMetadata) => {
if (!metadata || typeof metadata !== 'object') {
throw new TypeError('metadata must be an object.');
}
if (metadata.languageCode !== undefined && !/^[a-z]{3}$/.test(metadata.languageCode)) {
throw new TypeError('metadata.languageCode must be a three-letter, ISO 639-2 language code.');
}
};
/** @public */
export class Output {
@@ -90,9 +104,7 @@ export class Output {
if (!(source instanceof VideoSource)) {
throw new TypeError('source must be a VideoSource.');
}
if (!metadata || typeof metadata !== 'object') {
throw new TypeError('metadata must be an object.');
}
validateBaseTrackMetadata(metadata);
if (typeof metadata.rotation === 'number' && ![0, 90, 180, 270].includes(metadata.rotation)) {
throw new TypeError(`Invalid video rotation: ${metadata.rotation}. Has to be 0, 90, 180 or 270.`);
} else if (
@@ -117,9 +129,7 @@ export class Output {
if (!(source instanceof AudioSource)) {
throw new TypeError('source must be an AudioSource.');
}
if (!metadata || typeof metadata !== 'object') {
throw new TypeError('metadata must be an object.');
}
validateBaseTrackMetadata(metadata);
this._addTrack('audio', source, metadata);
}
@@ -128,9 +138,7 @@ export class Output {
if (!(source instanceof SubtitleSource)) {
throw new TypeError('source must be a SubtitleSource.');
}
if (!metadata || typeof metadata !== 'object') {
throw new TypeError('metadata must be an object.');
}
validateBaseTrackMetadata(metadata);
this._addTrack('subtitle', source, metadata);
}