[FFmpeg-trac] #5207(undetermined:new): Non-mjpeg file with fourcc MSC2

[FFmpeg]

#5207: Non-mjpeg file with fourcc MSC2
-------------------------------------+-------------------------------------
               Reporter:  cehoyos    |                  Owner:
                   Type:  defect     |                 Status:  new
               Priority:  normal     |              Component:
                Version:  git-       |  undetermined
  master                             |               Keywords:  avi
             Blocked By:             |               Blocking:
Reproduced by developer:  0          |  Analyzed by developer:  0
-------------------------------------+-------------------------------------
 FFmpeg supports Geutebrueck Multiscope II files from a security camera
 with FourCC MSC2, see ticket #4535: http://samples.ffmpeg.org/ffmpeg-
 bugs/trac/ticket4535
 All files contain a specific variant of mjpeg with an encoded resolution
 of 704x288, no audio. The files are supported except for an incorrect
 aspect ratio.
 A user uploaded a file {{{CapturedMovie.mrec}}} that is an avi with Fourcc
 MSC2. It contains silent pcm audio and video frames of very different
 size, maybe I- and P-frames, possibly a screen capture codec with a four
 byte header but not mjpeg afaict.
 {{{
 $ ffmpeg -i CapturedMovie.mrec
 ffmpeg version N-78214-g9938697 Copyright (c) 2000-2016 the FFmpeg
 developers
   built with gcc 4.7 (SUSE Linux)
   configuration: --enable-gpl
   libavutil      55. 16.101 / 55. 16.101
   libavcodec     57. 24.100 / 57. 24.100
   libavformat    57. 23.101 / 57. 23.101
   libavdevice    57.  0.101 / 57.  0.101
   libavfilter     6. 27.100 /  6. 27.100
   libswscale      4.  0.100 /  4.  0.100
   libswresample   2.  0.101 /  2.  0.101
   libpostproc    54.  0.100 / 54.  0.100
 [mjpeg @ 0x2f4c1c0] bits 145 is invalid
 [mjpeg @ 0x2f4c1c0] No JPEG data found in image
     Last message repeated 3 times
 [mjpeg @ 0x2f4c1c0] bits 230 is invalid
 [mjpeg @ 0x2f4c1c0] No JPEG data found in image
 [mjpeg @ 0x2f4c1c0] bits 171 is invalid
 [mjpeg @ 0x2f4c1c0] bits 77 is invalid
 [mjpeg @ 0x2f4c1c0] bits 163 is invalid
 [mjpeg @ 0x2f4c1c0] No JPEG data found in image
 [mjpeg @ 0x2f4c1c0] bits 206 is invalid
 [mjpeg @ 0x2f4c1c0] No JPEG data found in image
     Last message repeated 1 times
 [mjpeg @ 0x2f4c1c0] bits 219 is invalid
 [mjpeg @ 0x2f4c1c0] No JPEG data found in image
 [mjpeg @ 0x2f4c1c0] bits 223 is invalid
 [mjpeg @ 0x2f4c1c0] bits 35 is invalid
 [mjpeg @ 0x2f4c1c0] No JPEG data found in image
     Last message repeated 82 times
 [mjpeg @ 0x2f4c1c0] bits 145 is invalid
 [mjpeg @ 0x2f4c1c0] No JPEG data found in image
     Last message repeated 35 times
 [avi @ 0x2f4b280] decoding for stream 0 failed
 [avi @ 0x2f4b280] Could not find codec parameters for stream 0 (Video:
 mjpeg (MSC2 / 0x3243534D), none(bt470bg/unknown/unknown), 480x360,
 lossless, 26617 kb/s): unspecified pixel format
 Consider increasing the value for the 'analyzeduration' and 'probesize'
 options
 Guessed Channel Layout for  Input Stream #0.1 : stereo
 Input #0, avi, from 'CapturedMovie.mrec':
   Duration: 00:00:59.03, start: 0.000000, bitrate: 28030 kb/s
     Stream #0:0: Video: mjpeg (MSC2 / 0x3243534D),
 none(bt470bg/unknown/unknown), 480x360, lossless, 26617 kb/s, SAR 1:1 DAR
 4:3, 30 fps, 30 tbr, 30 tbn, 30 tbc
     Stream #0:1: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 44100 Hz, 2
 channels, s16, 1411 kb/s
 At least one output file must be specified
 }}}

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Ticket URL: <https://trac.ffmpeg.org/ticket/5207>
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