[FFmpeg-trac] #145(avformat:new): ogg theora vorbis badly out-of-sync

[FFmpeg]

#145: ogg theora vorbis badly out-of-sync
-------------------------+------------------------
  Reporter:  cehoyos     |      Owner:
      Type:  defect      |     Status:  new
  Priority:  normal      |  Component:  avformat
   Version:  git-master  |   Keywords:  ogg theora
Blocked By:              |   Blocking:
Reproduced:  0           |   Analyzed:  0
-------------------------+------------------------
 http://thread.gmane.org/gmane.comp.video.mplayer.devel/59554/focus=59565
 When attached sample is transcoded with ffmpeg, output is completely out-
 of-sync, as is playback with ffplay and mplayer -demuxer lavf (and
 -demuxer ogg).
 The sample plays fine with firefox (and much better with vlc than with
 MPlayer/FFmpeg).
 The sample contains 100 frames and should play for 33 seconds (24 fps look
 wrong).
 {{{
 $ ffmpeg -i theora-0packets.ogv out.avi
 ffmpeg version git-N-29539-g35fe66a, Copyright (c) 2000-2011 the FFmpeg
 developers
   built on May  1 2011 15:59:25 with gcc 4.5.2
   configuration: --cc='/usr/local/gcc-4.5.2/bin/gcc -m32' --enable-gpl
   libavutil    51.  2. 0 / 51.  2. 0
   libavcodec   53.  3. 0 / 53.  3. 0
   libavformat  53.  0. 3 / 53.  0. 3
   libavdevice  53.  0. 0 / 53.  0. 0
   libavfilter   2.  4. 0 /  2.  4. 0
   libswscale    0. 14. 0 /  0. 14. 0
 [ogg @ 0x8c8fb20] Unknown skeleton version 4.0
 [ogg @ 0x8c8fb20] Could not find codec parameters (Data: skeleton)
 Input #0, ogg, from 'theora-0packets.ogv':
   Duration: 00:00:33.00, start: 0.000000, bitrate: 195 kb/s
     Stream #0.0: Data: skeleton
     Stream #0.1: Video: theora, yuv420p, 320x176, 24 fps, 24 tbr, 24 tbn,
 24 tbc
     Stream #0.2: Audio: vorbis, 48000 Hz, stereo, s16, 80 kb/s
     Metadata:
       ENCODER         : ffmpeg2theora-0.27
       SOURCE_OSHASH   : 514a9a3ee6c61f2c
 [buffer @ 0x8c96b60] w:320 h:176 pixfmt:yuv420p
 Output #0, avi, to 'out.avi':
   Metadata:
     ISFT            : Lavf53.0.3
     Stream #0.0: Video: mpeg4, yuv420p, 320x176, q=2-31, 200 kb/s, 24 tbn,
 24 tbc
     Stream #0.1: Audio: mp2, 48000 Hz, stereo, s16, 64 kb/s
     Metadata:
       ENCODER         : ffmpeg2theora-0.27
       SOURCE_OSHASH   : 514a9a3ee6c61f2c
 Stream mapping:
   Stream #0.1 -> #0.0
   Stream #0.2 -> #0.1
 Press [q] to stop encoding
 frame=  100 fps=  0 q=7.6 Lsize=     587kB time=24.54 bitrate=
 196.1kbits/s
 video:274kB audio:258kB global headers:0kB muxing overhead 10.496974%
 }}}
 This could be a regression.

-- 
Ticket URL: <https://avcodec.org/trac/ffmpeg/ticket/145>
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