[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 Aegwyn11):

 Replying to [comment:8 cehoyos]:
 > Replying to [comment:7 Aegwyn11]:
 > > If I specify that I want -pix_fmt yuv422p10le on the output, it
 appears that the scaler is still invoked, but just converts from
 yuv422p10le to yuv422p10le,
 >
 > > not really doing anything.
 >
 > Did you test this? I am not 100% sure.
 >

 It looks to me like its bit exact, so this seems to be a viable
 workaround.

 > > So is a better workaround to both specify -c:v libopenjpeg on the
 input side and to specify the correct -pix_fmt on the output side?
 >
 > Imo, simply use {{{--disable-decoder=jpeg2000}}}

 I'm not very good with compiling (almost never do it), so it would take a
 bunch of time for me just to remember how to go about it. Not worth the
 effort...the above workaround seems to work fine until its properly fixed.

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Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/2683#comment:9>
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