[Ffmpeg-devel] a52 and ffmpeg issue

[Borat]

Jim Dishaw wrote:

> If I use -acodec copy, there is no audio on playback.

> ffmpeg -i test.vob -vcodec copy -scodec copy -acodec copy -y test.mpeg

> Input #0, mpeg, from 'test.vob':
>   Duration: 00:00:13.5, start: 0.201589, bitrate: 6062 kb/s
>   Stream #0.0[0x1e0]: Video: mpeg2video, yuv420p, 720x480, 9800 kb/s, 59.94 fps(r)
>   Stream #0.1[0x80]: Audio: ac3, 48000 Hz, mono, 448 kb/s

Also, in recent ffmpeg revisions the audio is shown as mono although
it is stereo:

ffmpeg6375 -i VTS_01_1.VOB 2>&1 | sed -n '/^Input /,$p'

Input #0, mpeg, from 'VTS_01_1.VOB':
  Duration: 00:02:19.3, start: 0.287267, bitrate: 7215 kb/s
  Stream #0.0[0x1e0]: Video: mpeg2video,  1.#J fps(c)
                                         ^^^^ <-- there is also something wrong
  Stream #0.1[0x80]: Audio: ac3, 48000 Hz, mono, 256 kb/s
                                           ^^^^
  Stream #0.2[0x20]: Subtitle: dvdsub
Must supply at least one output file

Older revisions reported the ac3 audio properties properly:

ffmpeg6218 -i VTS_01_1.VOB 2>&1 | sed -n '/^Input /,$p'

Input #0, mpeg, from 'VTS_01_1.VOB':
  Duration: 00:02:19.3, start: 0.287267, bitrate: 7215 kb/s
  Stream #0.0[0x1e0]: Video: mpeg2video, yuv420p, 720x576, 8700 kb/s, 25.00 fps(r)
  Stream #0.1[0x80]: Audio: ac3, 48000 Hz, stereo, 256 kb/s
                                           ^^^^^^
  Stream #0.2[0x20]: Subtitle: dvdsub
Must supply at least one output file

Also, could anybody please tell what's the different between "fps(c)"
(as printed by rv 6375) and "fps(r)" (rv 6218)?

--
regards,
B.