[FFmpeg-trac] #10123(avcodec:new): j2k decoder fails on on conformance codestream p0_09.j2k when bitexact is used

FFmpeg trac at avcodec.org
Wed Oct 30 18:07:38 EET 2024


#10123: j2k decoder fails on on conformance codestream p0_09.j2k when bitexact is
used
-------------------------------------+-------------------------------------
             Reporter:  Pierre-      |                    Owner:  (none)
  Anthony Lemieux                    |
                 Type:  defect       |                   Status:  new
             Priority:  minor        |                Component:  avcodec
              Version:  git-master   |               Resolution:
             Keywords:  j2k          |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------
Comment (by Balling):

 Please apply the
 https://patchwork.ffmpeg.org/project/ffmpeg/patch/20240912085158.2565620-1-owatanab@es.takushoku-u.ac.jp/

 It does not matter that they are "larger after the patch", our encoder is
 terrible compared to Kakadu used in Photoshop. The files produced are very
 big, and that is well known.

 We need this so that we have optimal

 > ISO/IEC 15444-4 | Rec. ITU-T T.803 (J2K conformance testing) specifies
 tolerances for decoding of lossy codestreams.
-- 
Ticket URL: <https://trac.ffmpeg.org/ticket/10123#comment:6>
FFmpeg <https://ffmpeg.org>
FFmpeg issue tracker


More information about the FFmpeg-trac mailing list