[FFmpeg-trac] #10182(avcodec:new): prores_videotoolbox results are inaccurate color

[FFmpeg]

#10182: prores_videotoolbox results are inaccurate color
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             Reporter:   Mils        |                    Owner:  (none)
                 Type:  defect       |                   Status:  new
             Priority:  normal       |                Component:  avcodec
              Version:  5.1.2        |               Resolution:
             Keywords:  prores,      |               Blocked By:
  prores_videotoolbox, videotoolbox  |
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
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Comment (by  Mils):

 Hi Balling,
 I've converted the original footage to just 3 seconds (instead of 30
 seconds) so I don't have to send 1.26GB of ProRes. I've also created a
 mediainfo.
 I'm not sure how to upload more than 2.5MB in trac.ffmpeg.org so I upload
 it to my dropbox.
 Please find the following link:
 https://www.dropbox.com/s/1v3kfwy60rjnybl/ffmpeg%20ticket%2010182.zip?dl=0

 In the .zip file there'll be the original footage, then the HEVC version
 that I converted using hevc_videotoolbox and then the ProRes version that
 I converted using prores_videotoolbox. Each footage has its mediainfo in
 .txt format.
 Hopefully you can help me figure out why is this happening
 Thank you.
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Ticket URL: <https://trac.ffmpeg.org/ticket/10182#comment:3>
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