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Add support for HEVC in Annex B, fix HEVC codec string extraction logic

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This commit is contained in:
Vanilagy
2025-05-12 14:56:34 +02:00
parent c3ffdb3054
commit b0a6cf8535
8 changed files with 730 additions and 109 deletions
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src/matroska/matroska-demuxer.ts
+11 -2
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@@ -1,4 +1,8 @@
import { extractAvcDecoderConfigurationRecord } from '../avc';
import {
extractAvcDecoderConfigurationRecord,
extractHevcDecoderConfigurationRecord,
serializeHevcDecoderConfigurationRecord,
} from '../avc';
import {
AacCodecInfo,
AudioCodec,
@@ -1552,7 +1556,9 @@ class MatroskaVideoTrackBacking extends MatroskaTrackBacking implements InputVid
= this.internalTrack.info.codec === 'vp9'
|| this.internalTrack.info.codec === 'av1'
// Packets are in Annex B format:
|| (this.internalTrack.info.codec === 'avc' && !this.internalTrack.info.codecDescription);
|| (this.internalTrack.info.codec === 'avc' && !this.internalTrack.info.codecDescription)
// Packets are in Annex B format:
|| (this.internalTrack.info.codec === 'hevc' && !this.internalTrack.info.codecDescription);
if (needsPacketForAdditionalInfo) {
firstPacket = await this.getFirstPacket({});
@@ -1568,6 +1574,9 @@ class MatroskaVideoTrackBacking extends MatroskaTrackBacking implements InputVid
avcCodecInfo: this.internalTrack.info.codec === 'avc' && firstPacket
? extractAvcDecoderConfigurationRecord(firstPacket.data)
: null,
hevcCodecInfo: this.internalTrack.info.codec === 'hevc' && firstPacket
? extractHevcDecoderConfigurationRecord(firstPacket.data)
: null,
vp9CodecInfo: this.internalTrack.info.codec === 'vp9' && firstPacket
? extractVp9CodecInfoFromFrame(firstPacket.data)
: null,