[FFmpeg-trac] #7624(avcodec:open): Support IPTPQc2 with chroma reshaping in Dolby Vision samples

[FFmpeg]

#7624: Support IPTPQc2 with chroma reshaping in Dolby Vision samples
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             Reporter:  cehoyos      |                    Owner:
                 Type:  enhancement  |                   Status:  open
             Priority:  wish         |                Component:  avcodec
              Version:  git-master   |               Resolution:
             Keywords:  hevc hdr     |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
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Comment (by Balling):

 So further comment here: profile 5 is only using IPTPQc2 if it is not
 marked as HDR10 compatible (see Mediainfo), in that case it uses limited
 and not full range. We do not, AFAIK, yet print that data (or print
 compatibility ID wrongly). For example these Apple 4K profile 5 videos are
 not IPTPQc2.
 https://docs.google.com/spreadsheets/d/1bboTohF06r-
 fafrImTExAPqM9m6h2m2lgJyAkQuYVJI/edit

 Also mandatory full range IPTPQc2 does use Y' of 1 for pure black, as can
 be checked by

 ffplay -i file -vf extractplanes=y

 There is also now Avengers Endgame from Display+ available with IPTPQc2 on
 torrents with very high bitrate.

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Ticket URL: <https://trac.ffmpeg.org/ticket/7624#comment:6>
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