[FFmpeg-trac] #9468(avcodec:new): J2K is decoding rgb24 as bgr24 in native decoder

[FFmpeg]

#9468: J2K is decoding rgb24 as bgr24 in native decoder
---------------------------------+--------------------------------------
             Reporter:  Balling  |                     Type:  defect
               Status:  new      |                 Priority:  normal
            Component:  avcodec  |                  Version:  git-master
             Keywords:  j2k      |               Blocked By:
             Blocking:           |  Reproduced by developer:  1
Analyzed by developer:  0        |
---------------------------------+--------------------------------------
 Summary of the bug:

 JPEG2000 file from ePassport is tagged as EnumCS 16 (sRGB) and has thus
 rgb24 data inside https://github.com/uclouvain/openjpeg/issues/1382 (lets
 not attach the sample there here, since it is personal photo and all), yet
 native decoder (ffplay -vcodec jpeg2000) decodes it incorrectly while
 ffplay -vcodec libopenjpeg decodes it correctly (says it is rgb24). Same
 happens in ffmpeg, "the application", of course, -c:v libopenjpeg is good.
 I will also point out that ffmpeg.exe -pixel_format bgr24 -c:v jpeg2000 is
 bit perfect with libopenjpeg, so SHOULD be very simple fix.
 How to reproduce (my ffmpeg defaults to jpeg2000):
 {{{
 ffmpeg.exe -i dg2img-3f096fe9d00296bc3734ac4f01b5bf60.j2k outfile.png
 ffmpeg version N-104341-g933765aa0e-20211013 Copyright (c) 2000-2021 the
 FFmpeg developers
   built with gcc 10-win32 (GCC) 20210408
   configuration: --prefix=/ffbuild/prefix --pkg-config-flags=--static
 --pkg-config=pkg-config --cross-prefix=x86_64-w64-mingw32- --arch=x86_64
 --target-os=mingw32 --enable-gpl --enable-version3 --disable-debug
 --enable-shared --disable-static --disable-w32threads --enable-pthreads
 --enable-iconv --enable-libxml2 --enable-zlib --enable-libfreetype
 --enable-libfribidi --enable-gmp --enable-lzma --enable-fontconfig
 --enable-libvorbis --enable-opencl --enable-libvmaf --enable-vulkan
 --disable-libxcb --disable-xlib --enable-amf --enable-libaom --enable-
 avisynth --enable-libdav1d --enable-libdavs2 --disable-libfdk-aac
 --enable-ffnvcodec --enable-cuda-llvm --enable-frei0r --enable-libglslang
 --enable-libgme --enable-libass --enable-libbluray --enable-libmp3lame
 --enable-libopus --enable-libtheora --enable-libvpx --enable-libwebp
 --enable-lv2 --enable-libmfx --enable-libopencore-amrnb --enable-
 libopencore-amrwb --enable-libopenjpeg --enable-librav1e --enable-
 librubberband --enable-schannel --enable-sdl2 --enable-libsoxr --enable-
 libsrt --enable-libsvtav1 --enable-libtwolame --enable-libuavs3d
 --disable-libdrm --disable-vaapi --enable-libvidstab --enable-libx264
 --enable-libx265 --enable-libxavs2 --enable-libxvid --enable-libzimg
 --enable-libzvbi --extra-cflags=-DLIBTWOLAME_STATIC --extra-cxxflags=
 --extra-ldflags=-pthread --extra-ldexeflags= --extra-libs=-lgomp --extra-
 version=20211013
   libavutil      57.  7.100 / 57.  7.100
   libavcodec     59. 12.100 / 59. 12.100
   libavformat    59.  6.100 / 59.  6.100
   libavdevice    59.  0.101 / 59.  0.101
   libavfilter     8. 14.100 /  8. 14.100
   libswscale      6.  1.100 /  6.  1.100
   libswresample   4.  0.100 /  4.  0.100
   libpostproc    56.  0.100 / 56.  0.100
 [jpeg2000 @ 0000021e61c1e840] End mismatch 1
 [jpeg2000 @ 0000021e61c1e840] End mismatch 15
 [jpeg2000 @ 0000021e61c1e840] End mismatch 24
 [jpeg2000 @ 0000021e61c1e840] End mismatch 34
 [jpeg2000 @ 0000021e61c1e840] End mismatch 16
 [jpeg2000 @ 0000021e61c1e840] End mismatch 18
 [jpeg2000 @ 0000021e61c1e840] End mismatch 10
 [jpeg2000 @ 0000021e61c1e840] End mismatch 1
 [jpeg2000 @ 0000021e61c1e840] End mismatch 7
 [jpeg2000 @ 0000021e61c1e840] End mismatch 5
 [jpeg2000 @ 0000021e61c1e840] End mismatch 10
     Last message repeated 1 times
 [jpeg2000 @ 0000021e61c1e840] End mismatch 2
 [jpeg2000 @ 0000021e61c1e840] End mismatch 1
 [jpeg2000 @ 0000021e61c1e840] End mismatch 5
 [jpeg2000 @ 0000021e61c1e840] End mismatch 2
 [jpeg2000 @ 0000021e61c1e840] End mismatch 1
 Input #0, j2k_pipe, from 'dg2img-3f096fe9d00296bc3734ac4f01b5bf60.j2k':
   Duration: N/A, bitrate: N/A
   Stream #0:0: Video: jpeg2000, rgb24, 413x531, lossless, 25 fps, 25 tbr,
 25 tbn
 Stream mapping:
   Stream #0:0 -> #0:0 (jpeg2000 (native) -> png (native))
 Press [q] to stop, [?] for help
 [jpeg2000 @ 0000021e61ee52c0] End mismatch 1
 [jpeg2000 @ 0000021e61ee52c0] End mismatch 15
 [jpeg2000 @ 0000021e61ee52c0] End mismatch 24
 [jpeg2000 @ 0000021e61ee52c0] End mismatch 34
 [jpeg2000 @ 0000021e61ee52c0] End mismatch 16
 [jpeg2000 @ 0000021e61ee52c0] End mismatch 18
 [jpeg2000 @ 0000021e61ee52c0] End mismatch 10
 [jpeg2000 @ 0000021e61ee52c0] End mismatch 1
 [jpeg2000 @ 0000021e61ee52c0] End mismatch 7
 [jpeg2000 @ 0000021e61ee52c0] End mismatch 5
 [jpeg2000 @ 0000021e61ee52c0] End mismatch 10
     Last message repeated 1 times
 [jpeg2000 @ 0000021e61ee52c0] End mismatch 2
 [jpeg2000 @ 0000021e61ee52c0] End mismatch 1
 [jpeg2000 @ 0000021e61ee52c0] End mismatch 5
 [jpeg2000 @ 0000021e61ee52c0] End mismatch 2
 [jpeg2000 @ 0000021e61ee52c0] End mismatch 1
 Output #0, image2, to 'outfile.png':
   Metadata:
     encoder         : Lavf59.6.100
   Stream #0:0: Video: png, rgb24(progressive), 413x531, q=2-31, 200 kb/s,
 25 fps, 25 tbn
     Metadata:
       encoder         : Lavc59.12.100 png
 frame=    1 fps=0.0 q=-0.0 Lsize=N/A time=00:00:00.04 bitrate=N/A
 speed=0.934x
 video:324kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB
 muxing overhead: unknown
 }}}
 Patches should be submitted to the ffmpeg-devel mailing list and not this
 bug tracker.
-- 
Ticket URL: <https://trac.ffmpeg.org/ticket/9468>
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