id,summary,reporter,owner,description,type,status,priority,component,version,resolution,keywords,cc,blockedby,blocking,reproduced,analyzed
2267,contrast loss when encoding from h264 yuvj420p to mpeg4 yuv420p,sperate,,"When trying to encode from "".mov"" files from a camera to avi (mpeg4 or libxvid) the output movie colors seemed dull.
I figured out it was a catrast loss.

How to reproduce:
{{{
% ffmpeg -i input.MOV -b:v4000k output.AVI
or
% ffmeg -i input.MOV -b:v4000k -vcodec libxvid output.AVI

ffmpeg version N-49610-gc2dd5a1 Copyright (c) 2000-2013 the FFmpeg developers
built on Feb  5 2013 13:20:59 with gcc 4.7.2 (GCC)

running on Windows XP
}}}

I get rid of the problem by trying to enhance the contrast with
{{{
-vf mp=eq=0:5
}}}
then figured out that just using the mplayer filter without modifing the contrast gave the best result
{{{
-vf mp=eq=0:0
}}}

It seems to be a color space problem fixed with this filter but there must be a better way of getting rid of this contrast loss ???",defect,closed,normal,swscale,git-master,duplicate,,,,,0,0