[FFmpeg-trac] #6811(avformat:new): TiVo sample not auto-detected

[FFmpeg]

#6811: TiVo sample not auto-detected
---------------------------------------+----------------------------------
               Reporter:  cehoyos      |                  Owner:
                   Type:  enhancement  |                 Status:  new
               Priority:  wish         |              Component:  avformat
                Version:  git-master   |               Keywords:  tivo
             Blocked By:               |               Blocking:
Reproduced by developer:  0            |  Analyzed by developer:  0
---------------------------------------+----------------------------------
 The following sample can be decoded when forcing the `ty` demuxer, is not
 autodetected. Auto-detection works fine with MPlayer, vlc detects the
 suffix.
 http://samples.ffmpeg.org/TiVo/test-dtivo-junkskip.ty+
 {{{
 $ ffmpeg -i test-dtivo-junkskip.ty+
 ffmpeg version N-88567-ga6a6935 Copyright (c) 2000-2017 the FFmpeg
 developers
   built with gcc 6.3.0 (GCC)
   configuration: --enable-gpl --cc=/usr/local/gcc-6.3.0/bin/gcc
   libavutil      56.  0.100 / 56.  0.100
   libavcodec     58.  1.100 / 58.  1.100
   libavformat    58.  2.100 / 58.  2.100
   libavdevice    58.  0.100 / 58.  0.100
   libavfilter     7.  0.101 /  7.  0.101
   libswscale      5.  0.101 /  5.  0.101
   libswresample   3.  0.101 /  3.  0.101
   libpostproc    55.  0.100 / 55.  0.100
 [mpeg @ 0x2a6a240] Format mpeg detected only with low score of 25,
 misdetection possible!
 Input #0, mpeg, from 'test-dtivo-junkskip.ty+':
   Duration: 00:00:14.83, start: 3554.749044, bitrate: 2827 kb/s
     Stream #0:0[0x1c0]: Audio: mp2, 48000 Hz, stereo, s16p, 192 kb/s
 At least one output file must be specified
 }}}
 {{{
 $ ffmpeg -f ty -i test-dtivo-junkskip.ty+
 ffmpeg version N-88567-ga6a6935 Copyright (c) 2000-2017 the FFmpeg
 developers
   built with gcc 6.3.0 (GCC)
   configuration: --enable-gpl
   libavutil      56.  0.100 / 56.  0.100
   libavcodec     58.  1.100 / 58.  1.100
   libavformat    58.  2.100 / 58.  2.100
   libavdevice    58.  0.100 / 58.  0.100
   libavfilter     7.  0.101 /  7.  0.101
   libswscale      5.  0.101 /  5.  0.101
   libswresample   3.  0.101 /  3.  0.101
   libpostproc    55.  0.100 / 55.  0.100
 [mpeg2video @ 0x3a977e0] Invalid frame dimensions 0x0.
     Last message repeated 28 times
 Input #0, ty, from 'test-dtivo-junkskip.ty+':
   Duration: N/A, start: 3554.749044, bitrate: N/A
     Stream #0:0: Video: mpeg2video (Main), yuv420p(tv, top first), 480x480
 [SAR 4:3 DAR 4:3], 29.97 fps, 29.97 tbr, 90k tbn, 59.94 tbc
     Stream #0:1: Audio: mp2, 48000 Hz, stereo, s16p, 192 kb/s
 At least one output file must be specified
 }}}

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Ticket URL: <https://trac.ffmpeg.org/ticket/6811>
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