[FFmpeg-trac] #9939(undetermined:new): JPEG 2000 images are decoded twice and needlessly slow

[FFmpeg]

#9939: JPEG 2000 images are decoded twice and needlessly slow
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             Reporter:  Tomas        |                    Owner:  (none)
  Härdin                             |
                 Type:  enhancement  |                   Status:  new
             Priority:  normal       |                Component:
                                     |  undetermined
              Version:  unspecified  |               Resolution:
             Keywords:               |               Blocked By:
  j2k,ffmpeg,probe                   |
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
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Comment (by mkver):

 As I have already told you on IRC: The jpeg2000 decoder needs to set the
 FF_CODEC_CAP_SKIP_FRAME_FILL_PARAM cap internal (and needs to export the
 relevant info even if the frame is discarded due to skip_frame being to
 set to AVDISCARD_ALL). Then the frame won't be decoded in
 avformat_find_stream_info().
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Ticket URL: <https://trac.ffmpeg.org/ticket/9939#comment:1>
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