[FFmpeg-trac] #6206(avformat:new): detect ffv1 in mkv with codecid V_FFV1

[FFmpeg]

#6206: detect ffv1 in mkv with codecid V_FFV1
---------------------------------------+----------------------------------
               Reporter:  dericed      |                  Owner:
                   Type:  defect       |                 Status:  new
               Priority:  normal       |              Component:  avformat
                Version:  unspecified  |               Keywords:  mkv ffv1
             Blocked By:               |               Blocking:
Reproduced by developer:  0            |  Analyzed by developer:  0
---------------------------------------+----------------------------------
 Summary of the bug:

 Attached are mkv files that use V_FFV1 as a codecid per https://github.com
 /Matroska-Org/matroska-specification/blob/master/codec_specs.md#v_ffv1.
 V_FFV1_v1.mkv contains a version 1 of FFV1 with no CodecPrivate, whereas
 V_FFV1_v3.mkv contains the ConfigurationRecord for FFV1 in CodecPrivate.

 How to reproduce:
 {{{
 ffmpeg -i V_FFV1_v1.mkv
 ffmpeg version git-2017-02-12-79d232f Copyright (c) 2000-2017 the FFmpeg
 developers
   built with Apple LLVM version 8.0.0 (clang-800.0.42.1)
   configuration: --prefix=/usr/local/Cellar/ffmpeg/HEAD-79d232f --enable-
 shared --enable-pthreads --enable-gpl --enable-version3 --enable-
 hardcoded-tables --enable-avresample --cc=clang --host-cflags= --host-
 ldflags= --enable-chromaprint --enable-ffplay --enable-libcaca --enable-
 libfreetype --enable-libmp3lame --enable-libopus --enable-libtesseract
 --enable-libvpx --enable-libx264 --enable-libx265 --enable-libxvid
 --enable-opencl --disable-lzma --enable-vda
   libavutil      55. 46.100 / 55. 46.100
   libavcodec     57. 79.100 / 57. 79.100
   libavformat    57. 66.102 / 57. 66.102
   libavdevice    57.  2.100 / 57.  2.100
   libavfilter     6. 73.100 /  6. 73.100
   libavresample   3.  2.  0 /  3.  2.  0
   libswscale      4.  3.101 /  4.  3.101
   libswresample   2.  4.100 /  2.  4.100
   libpostproc    54.  2.100 / 54.  2.100
 [matroska,webm @ 0x7fe067001800] Unknown/unsupported AVCodecID V_FFV1.
 [matroska,webm @ 0x7fe067001800] Could not find codec parameters for
 stream 0 (Video: none, none(progressive), 320x240): unknown codec
 Consider increasing the value for the 'analyzeduration' and 'probesize'
 options
 Input #0, matroska,webm, from 'V_FFV1_v1.mkv':
   Metadata:
     creation_time   : 2017-02-25T18:04:25.000000Z
     ENCODER         : Lavf57.66.102
   Duration: 00:00:01.00, start: 0.000000, bitrate: 871 kb/s
     Stream #0:0: Video: none, none(progressive), 320x240, SAR 1:1 DAR 4:3,
 25 fps, 25 tbr, 1k tbn, 1k tbc (default)
     Metadata:
       ENCODER         : Lavc57.79.100 ffv1
       DURATION        : 00:00:01.000000000
 At least one output file must be specified
 }}}

 and

 {{{
 ffmpeg -i V_FFV1_v3.mkv
 ffmpeg version git-2017-02-12-79d232f Copyright (c) 2000-2017 the FFmpeg
 developers
   built with Apple LLVM version 8.0.0 (clang-800.0.42.1)
   configuration: --prefix=/usr/local/Cellar/ffmpeg/HEAD-79d232f --enable-
 shared --enable-pthreads --enable-gpl --enable-version3 --enable-
 hardcoded-tables --enable-avresample --cc=clang --host-cflags= --host-
 ldflags= --enable-chromaprint --enable-ffplay --enable-libcaca --enable-
 libfreetype --enable-libmp3lame --enable-libopus --enable-libtesseract
 --enable-libvpx --enable-libx264 --enable-libx265 --enable-libxvid
 --enable-opencl --disable-lzma --enable-vda
   libavutil      55. 46.100 / 55. 46.100
   libavcodec     57. 79.100 / 57. 79.100
   libavformat    57. 66.102 / 57. 66.102
   libavdevice    57.  2.100 / 57.  2.100
   libavfilter     6. 73.100 /  6. 73.100
   libavresample   3.  2.  0 /  3.  2.  0
   libswscale      4.  3.101 /  4.  3.101
   libswresample   2.  4.100 /  2.  4.100
   libpostproc    54.  2.100 / 54.  2.100
 [matroska,webm @ 0x7fd265800000] Unknown/unsupported AVCodecID V_FFV1.
 [matroska,webm @ 0x7fd265800000] Could not find codec parameters for
 stream 0 (Video: none, none(progressive), 320x240): unknown codec
 Consider increasing the value for the 'analyzeduration' and 'probesize'
 options
 Input #0, matroska,webm, from 'V_FFV1_v3.mkv':
   Metadata:
     creation_time   : 2017-02-25T18:04:35.000000Z
     ENCODER         : Lavf57.66.102
   Duration: 00:00:01.00, start: 0.000000, bitrate: 1007 kb/s
     Stream #0:0: Video: none, none(progressive), 320x240, SAR 1:1 DAR 4:3,
 25 fps, 25 tbr, 1k tbn, 1k tbc (default)
     Metadata:
       ENCODER         : Lavc57.79.100 ffv1
       DURATION        : 00:00:01.000000000
 At least one output file must be specified
 }}}

--
Ticket URL: <https://trac.ffmpeg.org/ticket/6206>
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