[FFmpeg-trac] #4296(avformat:closed): Segfault when transcoding MLV file

FFmpeg trac at avcodec.org
Mon Feb 9 14:37:02 CET 2015

#4296: Segfault when transcoding MLV file
             Reporter:  sgofferj    |                    Owner:
                 Type:  defect      |                   Status:  closed
             Priority:  important   |                Component:  avformat
              Version:  git-master  |               Resolution:  fixed
             Keywords:  mlv         |               Blocked By:
             Blocking:              |  Reproduced by developer:  1
Analyzed by developer:  0           |

Comment (by cehoyos):


 It is supposed to work (better) with the following filter expression, the
 values taken from {{{ffmpeg -i}}} output but it is apparently wrong for
 this sample:
 {{{-vf 'lutrgb=r=777*val:b=408*val'}}}

 A simpler alternative is {{{-vf histeq}}} but this doesn't work well

 The following looks better here, do you agree? (I may just misunderstand
 how it works...)
 {{{-vf 'lutrgb=r=1.777*val:b=1.408*val'}}}

Ticket URL: <https://trac.ffmpeg.org/ticket/4296#comment:13>
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