[FFmpeg-trac] #1279(undetermined:open): Transform X'Y'Z' to RGB via lutrgb

[FFmpeg]

#1279: Transform X'Y'Z' to RGB via lutrgb
-------------------------------------+-------------------------------------
             Reporter:  wolfgangw    |                    Owner:
                 Type:  enhancement  |                   Status:  open
             Priority:  wish         |                Component:
              Version:  git-master   |  undetermined
             Keywords:  XYZ j2k      |               Resolution:
             Blocking:               |               Blocked By:
Analyzed by developer:  0            |  Reproduced by developer:  0
-------------------------------------+-------------------------------------
Changes (by cehoyos):

 * status:  new => open


Comment:

 Replying to [comment:4 wolfgangw]:
 > Re. libopenjpeg decoder and bit depths: Something seems to be amiss in
 your testing. A build of ffmpeg/libopenjpeg here (version
 N-34352-gf68742b)

 This is old, current FFmpeg fails, I sent a patch today - perhaps you
 could test it?

 > will decode and playback the attached MXF (or any other Digital Cinema
 compliant image MXF) just fine. See the attached ffplay.j2k-mxf-
 playback.messages.

 > It seems that it is forced to rgb24, though, indeed.

 Which is bad since FFmpeg does support up to 16 bit per component.

 > Re. 12bpc RGB sample: See
 https://github.com/downloads/wolfgangw/digital_cinema_tools/rgb-bary-
 12bpc.tiff. This is the source for the attached JPEG2000 image

 > Re. OPJ_COLOR_SPACE: Yes, that is a problem, if merely a cosmetic one.
 I'll look into it.

 Since libopenjpeg does not define XYZ, this will be impossible to solve
 afaict.

 I cannot really comment on XYZ vs RGB and lut, the decoding problem in
 current FFmpeg will hopefully be fixed soon.

-- 
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/1279#comment:5>
FFmpeg <http://ffmpeg.org>
FFmpeg issue tracker