[FFmpeg-trac] #9799(avfilter:open): Rotate filter to 16-bit per channel image causes false color

[FFmpeg]

#9799: Rotate filter to 16-bit per channel image causes false color
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             Reporter:  hayamdk       |                    Owner:  (none)
                 Type:  defect        |                   Status:  open
             Priority:  important     |                Component:  avfilter
              Version:  git-master    |               Resolution:
             Keywords:  rotate ubsan  |               Blocked By:
             Blocking:                |  Reproduced by developer:  1
Analyzed by developer:  0             |
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Comment (by Michael Koch):

 I use my Linux computer only rarely and did test with an older FFmpeg
 version. I did verify that the artefacts were visible before I applied the
 patch, but I didn't check the black level before. Most probably it was
 already 0,0,0 before I applied the patch.
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Ticket URL: <https://trac.ffmpeg.org/ticket/9799#comment:31>
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