New submission from Carl Eugen Hoyos <ceho...@rainbow.studorg.tuwien.ac.at>:

Original post:
http://thread.gmane.org/gmane.comp.video.mplayer.user/65188
http://lists.mplayerhq.hu/pipermail/mplayer-users/2010-December/081685.html

This is a regression since r25846.

Sample plays with mplayer -demuxer ogg -vc tremor, vlc, decodes fine with 
oggdec.

ffmpeg -i ogm_test_short.ogm out.wav
FFmpeg version SVN-r25845, Copyright (c) 2000-2010 the FFmpeg developers
  built on Dec 16 2010 02:26:43 with gcc 4.4.5
  configuration: --cc=/usr/local/gcc-4.4.5/bin/gcc
  libavutil     50.33. 0 / 50.33. 0
  libavcore      0.14. 0 /  0.14. 0
  libavcodec    52.97. 2 / 52.97. 2
  libavformat   52.87. 1 / 52.87. 1
  libavdevice   52. 2. 2 / 52. 2. 2
  libavfilter    1.65. 0 /  1.65. 0
  libswscale     0.12. 0 /  0.12. 0
[vorbis @ 0x11dd0c0] Extradata missing.
Input #0, ogg, from 'ogm_test_short.ogm':
  Duration: 00:00:09.64, start: 0.000000, bitrate: 1274 kb/s
    Stream #0.0: Video: mpeg4, yuv420p, 480x352, 25 fps, 25 tbr, 25 tbn, 25 tbc
    Stream #0.1(English): Audio: vorbis, 48000 Hz, stereo, s16, 0 kb/s
    Metadata:
      LWING_GAIN      : 01.00
      LANGUAGE        : English
Output #0, wav, to 'out.wav':
  Metadata:
    encoder         : Lavf52.87.1
    Stream #0.0(English): Audio: pcm_s16le, 48000 Hz, stereo, s16, 1536 kb/s
    Metadata:
      LWING_GAIN      : 01.00
      LANGUAGE        : English
Stream mapping:
  Stream #0.1 -> #0.0
Press [q] to stop encoding
size=    1816kB time=9.69 bitrate=1536.0kbits/s
video:0kB audio:1816kB global headers:0kB muxing overhead 0.002366%

ffmpeg -i ogm_test_short.ogm out.wav
FFmpeg version SVN-r26023, Copyright (c) 2000-2010 the FFmpeg developers
  built on Dec 16 2010 02:31:01 with gcc 4.4.5
  configuration: --cc=/usr/local/gcc-4.4.5/bin/gcc
  libavutil     50.34. 0 / 50.34. 0
  libavcore      0.16. 0 /  0.16. 0
  libavcodec    52.99. 1 / 52.99. 1
  libavformat   52.88. 0 / 52.88. 0
  libavdevice   52. 2. 2 / 52. 2. 2
  libavfilter    1.69. 0 /  1.69. 0
  libswscale     0.12. 0 /  0.12. 0
[vorbis @ 0x11e20c0] Extradata missing.
    Last message repeated 378 times
[ogg @ 0x11dd510] max_analyze_duration reached
Input #0, ogg, from 'ogm_test_short.ogm':
  Duration: 00:00:09.64, start: 0.000000, bitrate: 1274 kb/s
    Stream #0.0: Video: mpeg4, yuv420p, 480x352, 25 fps, 25 tbr, 25 tbn, 25 tbc
    Stream #0.1(English): Audio: vorbis, 48000 Hz, 2 channels, 0 kb/s
    Metadata:
      LWING_GAIN      : 01.00
      LANGUAGE        : English
[vorbis @ 0x11e20c0] Extradata missing.
Output #0, wav, to 'out.wav':
    Stream #0.0(English): Audio: pcm_s16le, 48000 Hz, 2 channels, s16, 1536 kb/s
    Metadata:
      LWING_GAIN      : 01.00
      LANGUAGE        : English
Stream mapping:
  Stream #0.1 -> #0.0
Error while opening decoder for input stream #0.1
File 'ogm_test_short.ogm' not attached - you can download it from 
https://roundup.ffmpeg.org/file1225.

----------
files: ogm_test_short.ogm
messages: 12969
priority: normal
status: open
substatus: open
title: vorbis in ogg can't be decoded
topic: regression
type: bug

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FFmpeg issue tracker <iss...@roundup.ffmpeg.org>
<https://roundup.ffmpeg.org/issue2428>
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