[FFmpeg-trac] #1021(FFmpeg:new): ffmpeg goes berserk when trying to convert this video to mjpeg

[FFmpeg]

#1021: ffmpeg goes berserk when trying to convert this video to mjpeg
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             Reporter:               |                     Type:  defect
  matteosistisette                   |                 Priority:  critical
               Status:  new          |                  Version:  0.7.10
            Component:  FFmpeg       |               Blocked By:
             Keywords:               |  Reproduced by developer:  0
             Blocking:               |
Analyzed by developer:  0            |
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 With the attached video (which is a 3gp video of 20 seconds, 10 fps,
 480x640 resolution, h264 codec, for a file size of about 4 MB, I tried the
 following command:

 ffmpeg -i VIDEO0024.3gp -vcodec mjpeg -s 300x400 -qmin 0.8 -qmax 0.8
 VIDEO0024.mov

 After several minutes, ffmpeg had processed more than 145357 frames,
 reported a time of 1.62 seconds, had written more than one GIGABYTE of
 output and was still working. I obviously killed it.

 It looks like it gets the framerate completely wrong.


 The exactly same command has worked just fine with other video files
 encoded with other codecs.

 ffmpeg version 0.7.3-4:0.7.3-0ubuntu0.11.10.1, Copyright (c) 2000-2011 the
 Libav developers
   built on Jan  4 2012 16:21:50 with gcc 4.6.1

-- 
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/1021>
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