[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 cehoyos):

 Replying to [comment:24 wolfgangw]:
 > Hm, it not only seems to accept X'Y'Z' but apparently it assumes X'Y'Z.
 Which will make DCinema people happy (me happy :) and everyone else using
 JPEG 2000 rather unhappy. The latter will get a color transform they did
 not and would not ask for.

 This indeed sounds like a serious regression, could you upload a sample
 that allows to reproduce this (I see a similar problem here, but not the
 one you describe)?

 > Also with git HEAD -lowres n nags about highest possible value 0 and
 Nicolas just posted a patch to suppress the option entirely in
 libavcodec/jpeg2000dec.c. What's the reasoning behind this?

 lowres works fine here with the two samples you uploaded, please provide
 your failing command line together with the complete, uncut console output
 if you see a problem.

-- 
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/1279#comment:26>
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