[FFmpeg-trac] #4980(undetermined:closed): yuv444 conversion in 1080p video of x265 native format broken?

[FFmpeg]

#4980: yuv444 conversion in 1080p video of x265 native format broken?
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             Reporter:  psteinb      |                    Owner:
                 Type:  defect       |                   Status:  closed
             Priority:  normal       |                Component:
              Version:  unspecified  |  undetermined
             Keywords:  libx265      |               Resolution:  invalid
             Blocking:               |               Blocked By:
Analyzed by developer:  0            |  Reproduced by developer:  0
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Comment (by psteinb):

 interesting:

 {{{
 $ ffmpeg -f lavfi -i testsrc=s=320x248 -vframes 10 -pix_fmt yuv444p
 out_10.yuv
 $ ffmpeg -f lavfi -i testsrc=s=320x248 -vframes 10 -strict experimental
 -pix_fmt yuv444p -vcodec libx265 -preset ultrafast -x265-params lossless=1
 out_10_lossless.hevc
 $ ffmpeg -i out_10_lossless.hevc -pix_fmt yuv444p out_10_lrt.yuv
 $ md5sum out_10*.yuv
 cd5e06d1217f093c4265a94b30e11e53  out_10_lrt.yuv
 bbc307efc496e074b177b51f555f4437  out_10.yuv
 $ ffmpeg -f lavfi -i testsrc=s=320x248 -vframes 10 -strict experimental
 -pix_fmt yuv444p -vcodec libx265 -preset fast -x265-params lossless=1
 out_10_lossless_fast.hevc
 $ ffmpeg -i out_10_lossless_fast.hevc -pix_fmt yuv444p out_10_lrt_fast.yuv
 $ md5sum out_10*.yuv
 bbc307efc496e074b177b51f555f4437  out_10_lrt_fast.yuv
 cd5e06d1217f093c4265a94b30e11e53  out_10_lrt.yuv
 bbc307efc496e074b177b51f555f4437  out_10.yuv
 }}}

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Ticket URL: <https://trac.ffmpeg.org/ticket/4980#comment:4>
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