[FFmpeg-user] Ticket#5936: Purple haze on ffmpeg mpeg4 decoding

Andy Furniss adf.lists at gmail.com
Thu Nov 10 20:33:28 EET 2016


Toerless Eckert wrote:
> Just opened https://trac.ffmpeg.org/ticket/5936

> git diff 03bb99ae1a99fa315621308b885a8fc70702c9bc 9236f7b5a23b4907f7b2bf6346ecd88e6d76f1e0
> produce 700k diff and i can not figure out what a likely cause is ;-(

Git bisect - can sometimes be tricky, but this was easy (he says hoping 
he found the right commit).

c5fc8ae12622a507d7b9ee30ddcd3734e6de6b1d is the first bad commit
commit c5fc8ae12622a507d7b9ee30ddcd3734e6de6b1d
Author: Michael Niedermayer <michaelni at gmx.at>
Date:   Fri Jun 13 01:45:23 2014 +0200

     avcodec/mpegvideo: fix edge emulation with uvlinesize below 25

     Fixes fate-vsynth3-wmv2



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