[FFmpeg-trac] #1279(swscale:closed): Transform X'Y'Z' to RGB via colormatrix

[FFmpeg]

#1279: Transform X'Y'Z' to RGB via colormatrix
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             Reporter:  wolfgangw    |                    Owner:
                 Type:  enhancement  |                   Status:  closed
             Priority:  wish         |                Component:  swscale
              Version:  git-master   |               Resolution:  fixed
             Keywords:  XYZ j2k      |               Blocked By:
  colormatrix                        |  Reproduced by developer:  0
             Blocking:               |
Analyzed by developer:  0            |
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Comment (by wolfgangw):

 Replying to [comment:25 heleppkes]:
 > AFAIK you don't need to "assume" if its XYZ or RGB or something else,
 the profile value indicates this in the bitstream (DCinema profiles use
 XYZ, everything else RGB), however not everything is implemented yet.

 I'll maintain that profiles 3/4, i.e. ISO/IEC 15444-1:2004/Amd.1:2006 (E),
 do not imply X'Y'Z' (the 2006 amendment adds these to the core coding
 system). There are SMPTE test DCPs (StEM) in both X'Y'Z' and R'G'B'.

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Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/1279#comment:35>
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