[FFmpeg-trac] #7978(undetermined:reopened): inaccurate conversion from YCbCr Narrow range to RGB Full range

[FFmpeg]

#7978: inaccurate conversion from YCbCr Narrow range to RGB Full range
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             Reporter:  cepesh       |                    Owner:  (none)
                 Type:  defect       |                   Status:  reopened
             Priority:  normal       |                Component:
                                     |  undetermined
              Version:  unspecified  |               Resolution:
             Keywords:               |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
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Comment (by pdr0):

 Use zscale instead

 ffmpeg -s 3840x2160 -vcodec v210 -i YUV_pattern-2fr.v210 -vf
 zscale=matrixin=2020_ncl,format=gbrp16le -an -frames:v 1 out_zscale.png

 100% white
 65535, 65535, 65535

 58% white
 38004, 38004, 38004

 100% Magenta
 65533, 0, 65535
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Ticket URL: <https://trac.ffmpeg.org/ticket/7978#comment:7>
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