Also if you will write an mpeg1video , it will be created with tag
'mpg1', not 'mpg2' in all cases (because correlation
AV_CODEC_ID_MPEG1_VIDEO -- 'mpg1') stands before 'mpg2' tag in
ff_codec_bmp_tags:
ffmpeg -i whatever.mov -vcodec mpeg1video test.avi
(output)
...
(output)
Stream #0:0: Video: mpeg1video (mpg1 / 0x3167706D),
> This is actually a bug, that just doesn't affect anything.
> First of all, the logic of functions that work with ff_codec_bmp_tags
> is "One tag -- one codec id".
> Also if you write this tag as MPEG2VIDEO, and then read the header
> (all by ffmpeg), it will interpret as MPEG1VIDEO:
> ffmpeg -i whatever.mxf -vcodec mpeg2video test.avi
> && gdb ffprobe_g
> (gdb) break avi_read_header
> (gdb) r -i test.avi
> (gdb) finish
(gdb) p s->>streams[0]->codecpar->codec_id
> $1 = AV_CODEC_ID_MPEG1VIDEO
--
С уважением,
Александр mailto:alexander.sloboden...@bramtech.ru
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