[FFmpeg-trac] #4471(avcodec:open): FFMPEG fails to find pix_fmt for MJ2 file

[FFmpeg]

#4471: FFMPEG fails to find pix_fmt for MJ2 file
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             Reporter:  PavelsM     |                    Owner:
                 Type:  defect      |                   Status:  open
             Priority:  normal      |                Component:  avcodec
              Version:  git-master  |               Resolution:
             Keywords:  j2k         |               Blocked By:
             Blocking:              |  Reproduced by developer:  1
Analyzed by developer:  0           |
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Changes (by cehoyos):

 * status:  new => open
 * version:  unspecified => git-master
 * component:  undetermined => avcodec
 * reproduced:  0 => 1


Comment:

 Thank you for the samples!

 The regression you see is a duplicate of ticket #3619 - workarounds are to
 configure with {{{--disable-decoder=jpeg2000 --enable-libopenjpeg}}} or to
 use {{{ffmpeg -vcodec libopenjpeg -i spot-day.mj2}}} to force the working
 decoder.

 I keep the ticket open because the internal decoder fails badly even after
 fixing the pix_fmt. It also shows imo that the current implementation is
 wrong wrt dcinema profiles and pix_fmts.

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Ticket URL: <https://trac.ffmpeg.org/ticket/4471#comment:4>
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