wrapper/FFmpeg
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

avformat/matroska: Support JPEG2000 for demuxing

Browse source 
Legal since commit 1cd0a9be4b2d1e7c60184ec68404e00e46e3123e
(Jan 4) in the Cellar Matroska specification git repo.
We still hold out on muxing it due to compatibility with
old demuxers.

Reviewed-by: compn <ff@hawaiiantel.net>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
This commit is contained in:
Andreas Rheinhardt 2025-05-25 03:31:17 +02:00
parent b7d44dde3b
commit 8a936b8726
2 changed files with 3 additions and 2 deletions
Download patch file Download diff file Expand all files Collapse all files

1
libavformat/matroska.c
View file

@ -82,6 +82,7 @@ const CodecTags ff_mkv_codec_tags[]={
{"V_AVS3" , AV_CODEC_ID_AVS3},
{"V_DIRAC" , AV_CODEC_ID_DIRAC},
{"V_FFV1" , AV_CODEC_ID_FFV1},
{"V_JPEG2000" , AV_CODEC_ID_JPEG2000},
{"V_MJPEG" , AV_CODEC_ID_MJPEG},
{"V_MPEG1" , AV_CODEC_ID_MPEG1VIDEO},
{"V_MPEG2" , AV_CODEC_ID_MPEG2VIDEO},

4
libavformat/matroskaenc.c
View file

@ -1960,8 +1960,8 @@ static int mkv_write_track(AVFormatContext *s, MatroskaMuxContext *mkv,
// look for a codec ID string specific to mkv to use,
// if none are found, use AVI codes
if (par->codec_id == AV_CODEC_ID_FFV1) {
/* FFV1 is actually supported natively in Matroska,
if (par->codec_id == AV_CODEC_ID_FFV1 || par->codec_id == AV_CODEC_ID_JPEG2000) {
/* FFV1 and JPEG2000 are actually supported natively in Matroska,
* yet we use the VfW way to mux it for compatibility
* with old demuxers. (FIXME: Are they really important?) */
} else if (par->codec_id != AV_CODEC_ID_RAWVIDEO || par->codec_tag) {