[FFmpeg-trac] #3831(swscale:open): conversion to bgr8 does not work correctly for some resolutions

[FFmpeg]

#3831: conversion to bgr8 does not work correctly for some resolutions
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             Reporter:  Chillance   |                    Owner:
                 Type:  defect      |                   Status:  open
             Priority:  normal      |                Component:  swscale
              Version:  git-master  |               Resolution:
             Keywords:  gif         |               Blocked By:
             Blocking:              |  Reproduced by developer:  1
Analyzed by developer:  0           |
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Comment (by cehoyos):

 > [19:55] <Chillance> so, what is going on with
 https://trac.ffmpeg.org/ticket/3831 ?

 Sorry, I wasn't aware you are searching for a workaround - in this case,
 it would have been better to report to the ffmpeg-user mailing list.
 The issue is not reproducible if you actually scale, the following is an
 example command line, many others are possible:
 {{{
 $ ffmpeg -i movie_to_be_animated.mp4 -vf super2xsai,scale=w=iw/2:h=ih/2
 out.gif
 }}}
 Note that if you look at my examples, it was always necessary to create an
 input video with the right resolution first because scaling "fixes" the
 issue.

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Ticket URL: <https://trac.ffmpeg.org/ticket/3831#comment:5>
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