[FFmpeg-trac] #5972(avfilter:reopened): Zscale st_2084 transfer function from ZIMG

[FFmpeg]

#5972: Zscale st_2084 transfer function from ZIMG
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             Reporter:  muxketeer    |                    Owner:
                 Type:  enhancement  |                   Status:  reopened
             Priority:  wish         |                Component:  avfilter
              Version:  git-master   |               Resolution:
             Keywords:  libzimg      |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
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Comment (by muxketeer):

 As an alternative to entering the vast land of swscale and it's many
 "features" :), is there a way to chain the zscale filter such that swscale
 filters don't get auto-added?  EG have first zscale filter convert to
 yuv444p16 then have the next(second) zscale filter instance convert to
 yuv420p?
 Just a brainstorm idea.
 If no, thanks for fixing it in swscale.

 Where is gbrp16 required?    Is it the only format zscale accepts, as
 input, to convert to yuv420p?

 Here's one .tiff encoded in the same way as the OP .tiff files.
 https://www.datafilehost.com/d/73cfe550

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Ticket URL: <https://trac.ffmpeg.org/ticket/5972#comment:17>
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