[FFmpeg-trac] #1558(avformat:new): Unable to decode a (possibly damaged) matroska file

[FFmpeg]

#1558: Unable to decode a (possibly damaged) matroska file
--------------------------------------+----------------------------------
               Reporter:  cehoyos     |                  Owner:
                   Type:  defect      |                 Status:  new
               Priority:  normal      |              Component:  avformat
                Version:  git-master  |               Keywords:  mkv
             Blocked By:              |               Blocking:
Reproduced by developer:  0           |  Analyzed by developer:  0
--------------------------------------+----------------------------------
 (issue 384)
 http://samples.ffmpeg.org/ffmpeg-bugs/roundup/issue384/
 FFmpeg is unable to decode a matroska sample that is played fine by vlc.
 {{{
 $ ffmpeg -i matroska_crash.mkv
 ffmpeg version N-42619-g6b7849e Copyright (c) 2000-2012 the FFmpeg
 developers
   built on Jul 19 2012 08:58:35 with gcc 4.3.2
   configuration: --cc=/usr/local/gcc-4.3.2/bin/gcc --enable-gpl --enable-
 libopenjpeg --enable-libvorbis --enable-libspeex --enable-libmp3lame
 --enable-libtheora --extra-ldflags=-lm --enable-libvpx --enable-libxavs
 --enable-x11grab --enable-libass
   libavutil      51. 65.100 / 51. 65.100
   libavcodec     54. 41.100 / 54. 41.100
   libavformat    54. 17.100 / 54. 17.100
   libavdevice    54.  1.100 / 54.  1.100
   libavfilter     3.  2.100 /  3.  2.100
   libswscale      2.  1.100 /  2.  1.100
   libswresample   0. 15.100 /  0. 15.100
   libpostproc    52.  0.100 / 52.  0.100
 [matroska,webm @ 0x90764e0] Unknown entry 0x6E1F
 [matroska,webm @ 0x90764e0] Unknown entry 0x48B2
 [matroska,webm @ 0x90764e0] Read error at pos. 2376 (0x948)
 [matroska,webm @ 0x90764e0] Unknown entry 0x81
 [matroska,webm @ 0x90764e0] Read error at pos. 192 (0xc0)
 [matroska,webm @ 0x90764e0] Unknown entry 0x82
 [matroska,webm @ 0x90764e0] Unknown entry 0x67C9
     Last message repeated 1 times
 [matroska,webm @ 0x90764e0] Unknown entry 0x82
 [matroska,webm @ 0x90764e0] Could not find codec parameters for stream 1
 (Audio: mp3, 48000 Hz, 2 channels, s16): unspecified sample size
 Consider increasing the value for the 'analyzeduration' and 'probesize'
 options
 [matroska,webm @ 0x90764e0] Could not find codec parameters for stream 3
 (Audio: mp3, 48000 Hz, 2 channels, s16): unspecified sample size
 Consider increasing the value for the 'analyzeduration' and 'probesize'
 options
 [matroska,webm @ 0x90764e0] Could not find codec parameters for stream 5
 (Audio: mp3, 48000 Hz, 2 channels, s16): unspecified sample size
 Consider increasing the value for the 'analyzeduration' and 'probesize'
 options
 [matroska,webm @ 0x90764e0] Estimating duration from bitrate, this may be
 inaccurate
 Guessed Channel Layout for  Input Stream #0.1 : stereo
 Guessed Channel Layout for  Input Stream #0.3 : stereo
 Guessed Channel Layout for  Input Stream #0.5 : stereo
 Input #0, matroska,webm, from 'matroska_crash.mkv':
   Metadata:
     creation_time   : 2005-07-28 20:39:44
   Duration: N/A, start: 0.000000, bitrate: N/A
     Chapter #0.0: start 0.000000, end 15.000000
     Metadata:
       title           : Introduction
     Chapter #0.1: start 15.000000, end 30.000000
     Metadata:
       title           : Developpement
     Chapter #0.2: start 30.000000, end 45.200000
     Metadata:
       title           : Conclusion
     Stream #0:0(eng): Video: mpeg4 (DX50 / 0x30355844), yuv420p, 720x400,
 SAR 1:1 DAR 9:5, 25 fps, 25 tbr, 1k tbn, 1k tbc (default)
     Stream #0:1(eng): Audio: mp3, 48000 Hz, stereo, s16 (default)
     Stream #0:2(eng): Video: mpeg4 (DX50 / 0x30355844), yuv420p, 720x400,
 SAR 1:1 DAR 9:5, 25 fps, 25 tbr, 1k tbn, 1k tbc (default)
     Stream #0:3(eng): Audio: mp3, 48000 Hz, stereo, s16 (default)
     Stream #0:4(eng): Video: mpeg4 (DX50 / 0x30355844), yuv420p, 720x400,
 SAR 1:1 DAR 9:5, 25 fps, 25 tbr, 1k tbn, 1k tbc (default)
     Stream #0:5(eng): Audio: mp3, 48000 Hz, stereo, s16 (default)
 At least one output file must be specified
 }}}

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Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/1558>
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