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demux_mkv: make V_QUICKTIME codec detection generic 

This allows playing files with any fourcc that is supported by mpv.
This commit is contained in:
Kacper Michajłow 2024-05-03 18:47:15 +02:00
parent 2414051d76
commit e42e0f2e2a
1 changed files with 7 additions and 8 deletions
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15
demux/demux_mkv.c
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@ -1527,15 +1527,14 @@ static int demux_mkv_open_video(demuxer_t *demuxer, mkv_track_t *track)
sh_v->codec_tag = track->colorspace;
sh_v->codec = "rawvideo";
} else if (strcmp(track->codec_id, "V_QUICKTIME") == 0) {
uint32_t fourcc1 = 0, fourcc2 = 0;
if (track->private_size >= 8) {
fourcc1 = AV_RL32(track->private_data + 0);
fourcc2 = AV_RL32(track->private_data + 4);
}
if (fourcc1 == MKTAG('S', 'V', 'Q', '3') ||
fourcc2 == MKTAG('S', 'V', 'Q', '3'))
{
sh_v->codec = "svq3";
sh_v->codec_tag = AV_RL32(track->private_data + 4);
mp_set_codec_from_tag(sh_v);
// Some non-compliant files have fourcc at offset 0.
if (!sh_v->codec) {
sh_v->codec_tag = AV_RL32(track->private_data);
mp_set_codec_from_tag(sh_v);
}
extradata = track->private_data;
extradata_size = track->private_size;
}