[FFmpeg-trac] #2507(undetermined:new): Heavy desync with ffplay for a mpeg4-ogg sample

[FFmpeg]

#2507: Heavy desync with ffplay for a mpeg4-ogg sample
-------------------------------------+-------------------------------------
             Reporter:  cehoyos      |                    Owner:
                 Type:  defect       |                   Status:  new
             Priority:  important    |                Component:
              Version:  git-master   |  undetermined
             Keywords:  ogg mpeg4    |               Resolution:
  videolan regression                |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------
Description changed by cehoyos:

Old description:

> (Sample from videolan ticket 8486)
> A vlc user provided a sample that plays fine with MPlayer (and totem),
> can be transcoded with ffmpeg (see ticket #2506), but plays with heavy
> A/V desync with ffplay since d148339
> With older ffplay versions, many frames are dropped (but the sample plays
> mostly in-sync.
> {{{
> $ ffplay File\ 50MB\ DG\ Split\ 206\ Video\ Issue.ogm
> ffplay version N-52542-g5149407 Copyright (c) 2003-2013 the FFmpeg
> developers
>   built on Apr 28 2013 14:19:06 with gcc 4.7 (SUSE Linux)
>   configuration: --enable-gpl --disable-indev=jack
>   libavutil      52. 27.101 / 52. 27.101
>   libavcodec     55.  6.100 / 55.  6.100
>   libavformat    55.  3.100 / 55.  3.100
>   libavdevice    55.  0.100 / 55.  0.100
>   libavfilter     3. 61.101 /  3. 61.101
>   libswscale      2.  2.100 /  2.  2.100
>   libswresample   0. 17.102 /  0. 17.102
>   libpostproc    52.  3.100 / 52.  3.100
> Input #0, ogg, from 'File 50MB DG Split 206 Video Issue.ogm':=0/0
>   Duration: 00:04:41.11, start: 0.000000, bitrate: 1492 kb/s
>     Stream #0:0: Video: mpeg4 (XVID / 0x44495658), yuv420p, 576x432,
> 23.98 fps, 23.98 tbr, 23.98 tbn, 23.98 tbc
>     Stream #0:1(English): Audio: vorbis, 48000 Hz, stereo, fltp, 89 kb/s
>     Stream #0:2(Japanese): Audio: vorbis, 48000 Hz, stereo, fltp, 89 kb/s
>     Stream #0:3(English): Subtitle: text
>   48.34 A-V: 23.441 fd=  32 aq= 1348KB vq=14012KB sq=    0B f=0/144
> }}}

New description:

 (Sample from videolan ticket 8486)
 A vlc user provided a sample that plays fine with MPlayer (and totem), can
 be transcoded with ffmpeg (see ticket #2506), but plays with heavy A/V
 desync with ffplay since d148339
 With older ffplay versions, many frames are dropped (but the sample plays
 mostly in-sync).
 {{{
 $ ffplay File\ 50MB\ DG\ Split\ 206\ Video\ Issue.ogm
 ffplay version N-52542-g5149407 Copyright (c) 2003-2013 the FFmpeg
 developers
   built on Apr 28 2013 14:19:06 with gcc 4.7 (SUSE Linux)
   configuration: --enable-gpl --disable-indev=jack
   libavutil      52. 27.101 / 52. 27.101
   libavcodec     55.  6.100 / 55.  6.100
   libavformat    55.  3.100 / 55.  3.100
   libavdevice    55.  0.100 / 55.  0.100
   libavfilter     3. 61.101 /  3. 61.101
   libswscale      2.  2.100 /  2.  2.100
   libswresample   0. 17.102 /  0. 17.102
   libpostproc    52.  3.100 / 52.  3.100
 Input #0, ogg, from 'File 50MB DG Split 206 Video Issue.ogm':=0/0
   Duration: 00:04:41.11, start: 0.000000, bitrate: 1492 kb/s
     Stream #0:0: Video: mpeg4 (XVID / 0x44495658), yuv420p, 576x432, 23.98
 fps, 23.98 tbr, 23.98 tbn, 23.98 tbc
     Stream #0:1(English): Audio: vorbis, 48000 Hz, stereo, fltp, 89 kb/s
     Stream #0:2(Japanese): Audio: vorbis, 48000 Hz, stereo, fltp, 89 kb/s
     Stream #0:3(English): Subtitle: text
   48.34 A-V: 23.441 fd=  32 aq= 1348KB vq=14012KB sq=    0B f=0/144
 }}}

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Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/2507#comment:1>
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