[FFmpeg-trac] #11182(swscale:closed): yuvtestsrc and yuv444p->rgba->yuv444p conversion result in huge difference

[FFmpeg]

#11182: yuvtestsrc and yuv444p->rgba->yuv444p conversion result in huge difference
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             Reporter:  Andrew-R     |                    Owner:  (none)
                 Type:  defect       |                   Status:  closed
             Priority:  normal       |                Component:  swscale
              Version:  unspecified  |               Resolution:  invalid
             Keywords:  colorspace   |               Blocked By:
  color_primaries                    |
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
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Comment (by Balling):

 >I also found suggestion by Paul (?)

 Yes, Paul renamed himself Elon...


 #3345 is about dither. That only happens if you do not disable dither, in
 zscale dither is disabled by default, use that. "Default is none."
 https://ffmpeg.org/ffmpeg-filters.html#zscale-1

 #7978 does not happen with zscale either.

 >so we easily can get unknown

 If it SD it is BT.601 vs BT.709 for HD
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Ticket URL: <https://trac.ffmpeg.org/ticket/11182#comment:26>
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