[FFmpeg-trac] #5360(avcodec:open): Errors shown when correctly decoding jpeg2000 frames

[FFmpeg]

#5360: Errors shown when correctly decoding jpeg2000 frames
-------------------------------------+-------------------------------------
             Reporter:  cehoyos      |                    Owner:
                 Type:  defect       |                   Status:  open
             Priority:  minor        |                Component:  avcodec
              Version:  git-master   |               Resolution:
             Keywords:  j2k          |               Blocked By:
  regression                         |
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------

Comment (by Balling):

 >Decoding is still bit-exact.


 That may be the case (and '''IS'''), but the lossless (by default) file
 produced by


 {{{
 ffmpeg -f lavfi -i testsrc=d=1 -c:v libopenjpeg -vframes 1 out1.j2k

 }}}

 after fix for lossless (look here
 https://trac.ffmpeg.org/ticket/4653#comment:7) does not cause any problems
 when you do


 {{{
 ffmpeg -i out.j2k -f crc -
 }}}

 while native jpeg2000 encoder does... So it is a problem!!! Those warnings
 are just overflow checks though.

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Ticket URL: <https://trac.ffmpeg.org/ticket/5360#comment:2>
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