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Add colr box

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This commit is contained in:
Vanilagy
2024-11-24 15:04:57 +01:00
parent 29ecccb26a
commit 29749451bb
7 changed files with 143 additions and 68 deletions
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src/isobmff/isobmff_boxes.ts
+12 -3
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@@ -1,4 +1,4 @@
import { toUint8Array, assert, isU32, last, TransformationMatrix, textEncoder } from '../misc';
import { toUint8Array, assert, isU32, last, TransformationMatrix, textEncoder, COLOR_PRIMARIES_MAP, TRANSFER_CHARACTERISTICS_MAP, MATRIX_COEFFICIENTS_MAP, colorSpaceIsComplete } from '../misc';
import { AudioCodec, AudioSource, SubtitleCodec, VideoCodec, VideoSource } from '../source';
import { formatSubtitleTimestamp } from '../subtitles';
import { Writer } from '../writer';
@@ -525,8 +525,17 @@ export const videoSampleDescription = (
u16(0x0018), // Depth
i16(0xffff) // Pre-defined
], [
VIDEO_CODEC_TO_CONFIGURATION_BOX[trackData.track.source.codec](trackData)
// TODO colr
VIDEO_CODEC_TO_CONFIGURATION_BOX[trackData.track.source.codec](trackData),
colorSpaceIsComplete(trackData.info.decoderConfig.colorSpace) ? colr(trackData) : null
]);
/** Colour Information Box: Specifies the color space of the video. */
export const colr = (trackData: IsobmffVideoTrackData) => box('colr', [
ascii('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
]);
// TODO: All muxers should ensure that the decoder config description is provided for the codecs that require it. This