[FFmpeg-trac] #4642(undetermined:new): Converting a certain gif to mp4 turns all frames green

FFmpeg trac at avcodec.org
Fri Jun 19 17:24:47 CEST 2015


#4642: Converting a certain gif to mp4 turns all frames green
-------------------------------------+-------------------------------------
             Reporter:  nicksantos   |                     Type:  defect
               Status:  new          |                 Priority:  normal
            Component:               |                  Version:
  undetermined                       |  unspecified
             Keywords:               |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------
 Run the following command with the provided gif file:
 {{{
 % FFREPORT=true ffmpeg -v 9 -loglevel 99 -i
 turns_green_when_converted_to_mp4.gif -q 5 -pix_fmt yuv420p green.mp4

 ffmpeg version N-69101-ge7d8518 Copyright (c) 2000-2015 the FFmpeg
 developers
   built on Jan 15 2015 21:55:44 with gcc 4.8.2 (GCC) 20140120 (Red Hat
 4.8.2-16)
   configuration: --enable-libtheora --enable-postproc
 --prefix=/home/ec2-user/ffmpeg/build-ffmpeg
 }}}

 All the frames in the mp4 come out green.

 Interestingly, I was only able to reproduce this on my EC2 linux machines.
 The conversion worked fine when I ran the same command on OSX.

 I'll attach the full log, the input file, and the output file.

--
Ticket URL: <https://trac.ffmpeg.org/ticket/4642>
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