[FFmpeg-trac] #10058(avcodec:open): jpeg2000: support paletted images

[FFmpeg]

#10058: jpeg2000: support paletted images
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             Reporter:  ami_stuff    |                    Owner:  (none)
                 Type:  defect       |                   Status:  open
             Priority:  important    |                Component:  avcodec
              Version:  git-master   |               Resolution:
             Keywords:  j2k          |               Blocked By:
  regression                         |
             Blocking:               |  Reproduced by developer:  1
Analyzed by developer:  0            |
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Comment (by Balling):

 ffmpeg -c:v jpeg2000 -f image2 -i palettedImage.jp2 out2123.bmp

 produces so off-by-two differences with opj_decompress.exe. Strange, it is
 lossless, right?

 E.g. 28, 20, 0 (opj_decompress.exe) vs 30, 21, 0 (jpeg2000).
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Ticket URL: <https://trac.ffmpeg.org/ticket/10058#comment:11>
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