[FFmpeg-trac] #2683(avcodec:open): Jpeg2000 decoder broken

[FFmpeg]

#2683: Jpeg2000 decoder broken
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             Reporter:  Aegwyn11     |                    Owner:
                 Type:  defect       |                   Status:  open
             Priority:  important    |                Component:  avcodec
              Version:  git-master   |               Resolution:
             Keywords:  j2k          |               Blocked By:
  regression                         |  Reproduced by developer:  1
             Blocking:               |
Analyzed by developer:  0            |
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Comment (by cehoyos):

 Replying to [comment:2 Aegwyn11]:
 > Replying to [comment:1 cehoyos]:
 > > Workarounds are to configure with {{{--disable-decoder=jpeg2000}}} or
 to specify libopenjpeg as decoder with {{{-vcodec libopenjpeg}}} (in this
 case, the scaler will always be inserted).
 >
 > Trying the -c:v libopenjpeg workaround, it does work, but the input
 still shows as rgb48le and the output is rgb48le.

 As explained, if you use -vcodec libopenjpeg the video scaler is inserted
 to convert from yuv422p10 to rgb48. See the console output for the correct
 colourspace (and the console output with -loglevel verbose to see the
 scaler inserted).

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Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/2683#comment:3>
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