This commit is contained in:
Vanilagy
2026-06-02 13:06:42 +02:00
4 changed files with 120 additions and 7 deletions
+1 -1
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@@ -691,7 +691,7 @@ export class InputVideoTrack extends InputTrack {
const colorSpace = await this._backing.getColorSpace();
return (colorSpace.primaries as string) === 'bt2020' || (colorSpace.primaries as string) === 'smpte432'
|| (colorSpace.transfer as string) === 'pg' || (colorSpace.transfer as string) === 'hlg'
|| (colorSpace.transfer as string) === 'pq' || (colorSpace.transfer as string) === 'hlg'
|| (colorSpace.matrix as string) === 'bt2020-ncl';
}
+4 -2
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@@ -741,11 +741,13 @@ export const pasp = (trackData: IsobmffVideoTrackData) => {
/** Colour Information Box: Specifies the color space of the video. */
export const colr = (trackData: IsobmffVideoTrackData) => box('colr', [
ascii('nclx'), // Colour type
ascii(trackData.muxer.isQuickTime ? 'nclc' : 'nclx'), // Colour type
u16(COLOR_PRIMARIES_MAP[trackData.info.decoderConfig.colorSpace!.primaries!]), // Colour primaries
u16(TRANSFER_CHARACTERISTICS_MAP[trackData.info.decoderConfig.colorSpace!.transfer!]), // Transfer characteristics
u16(MATRIX_COEFFICIENTS_MAP[trackData.info.decoderConfig.colorSpace!.matrix!]), // Matrix coefficients
u8((trackData.info.decoderConfig.colorSpace!.fullRange ? 1 : 0) << 7), // Full range flag
trackData.muxer.isQuickTime
? [] // Doesn't have it
: u8((trackData.info.decoderConfig.colorSpace!.fullRange ? 1 : 0) << 7), // Full range flag
]);
/** AVC Configuration Box: Provides additional information to the decoder. */
+7 -3
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@@ -1448,20 +1448,24 @@ export class IsobmffDemuxer extends Demuxer {
assert(track.info?.type === 'video');
const colourType = readAscii(slice, 4);
if (colourType !== 'nclx') {
if (colourType !== 'nclx' && colourType !== 'nclc') {
break;
}
const colourPrimaries = readU16Be(slice);
const transferCharacteristics = readU16Be(slice);
const matrixCoefficients = readU16Be(slice);
const fullRangeFlag = Boolean(readU8(slice) & 0x80);
let fullRange: boolean | undefined = undefined;
if (colourType === 'nclx') {
fullRange = Boolean(readU8(slice) & 0x80);
}
track.info.colorSpace = {
primaries: COLOR_PRIMARIES_MAP_INVERSE[colourPrimaries],
transfer: TRANSFER_CHARACTERISTICS_MAP_INVERSE[transferCharacteristics],
matrix: MATRIX_COEFFICIENTS_MAP_INVERSE[matrixCoefficients],
fullRange: fullRangeFlag,
fullRange,
} as VideoColorSpaceInit;
}; break;