[FFmpeg-trac] #9769(avcodec:open): JPEG 2000 decoder: decoder should ignore any data that appears after End of Codestream marker 0xFFD9

FFmpeg trac at avcodec.org
Fri Aug 30 11:13:23 EEST 2024


#9769: JPEG 2000 decoder: decoder should ignore any data that appears after End of
Codestream marker 0xFFD9
-------------------------------------+-------------------------------------
             Reporter:  Pierre-      |                    Owner:  (none)
  Anthony Lemieux                    |
                 Type:  defect       |                   Status:  open
             Priority:  minor        |                Component:  avcodec
              Version:  git-master   |               Resolution:
             Keywords:  j2k          |               Blocked By:
             Blocking:               |  Reproduced by developer:  1
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------
Comment (by Balling):

 >JPEG 2000 does not specify a bit-exact decoder (for lossy codestreams),
 which is why some deviation is expected across decoders and across
 decoding paths in a given decoder.
 ISO/IEC 15444-4 | Rec. ITU-T T.803 (J2K conformance testing) specifies


 Oh-oh
 https://patchwork.ffmpeg.org/project/ffmpeg/patch/20240830020741.169009-1-owatanab@es.takushoku-u.ac.jp/
-- 
Ticket URL: <https://trac.ffmpeg.org/ticket/9769#comment:26>
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