[FFmpeg-trac] #5936(avcodec:open): Purple haze in mpeg4 decoding

FFmpeg trac at avcodec.org
Sat Nov 12 19:10:21 EET 2016

#5936: Purple haze in mpeg4 decoding
             Reporter:  te36         |                    Owner:
                 Type:  defect       |                   Status:  open
             Priority:  important    |                Component:  avcodec
              Version:  git-master   |               Resolution:
             Keywords:  asp          |               Blocked By:
  regression                         |  Reproduced by developer:  1
             Blocking:               |
Analyzed by developer:  0            |

Comment (by te36):

 Looking at:

 It seems that every second commit in 2016/2015 changes the code back and
 force between the "good old" code (no purple haze) - eg: with variable
 "uvbuf" and the "new" code - eg: with variable ubuf/vbuf. There is also
 39a2d3288e82e4e576c03efb32179ef5a19fff50 that pulled out the code into a
 separate function (using the good old code), but that fix also vanished
 later on. Without an explanation why (that i could find).

Ticket URL: <https://trac.ffmpeg.org/ticket/5936#comment:6>
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