[FFmpeg-trac] #4523(avcodec:new): JPEG2000 yuv420p file generated by ffmpeg with libopenjpeg codec is broken

[FFmpeg]

#4523: JPEG2000 yuv420p file generated by ffmpeg with libopenjpeg codec is broken
-------------------------------------+-------------------------------------
               Reporter:  saste      |                  Owner:
                   Type:  defect     |                 Status:  new
               Priority:  important  |              Component:  avcodec
                Version:  git-       |               Keywords:  libopenjpeg
  master                             |               Blocking:
             Blocked By:             |  Analyzed by developer:  0
Reproduced by developer:  1          |
-------------------------------------+-------------------------------------
 Summary of the bug:
 How to reproduce:
 {{{
 $ ffmpeg -i fate-samples/lena.pnm -strict -2 -c libopenjpeg -pix_fmt
 yuv420p -y lena.yuv420p.j2k
 ffmpeg version N-71578-g57865a9 Copyright (c) 2000-2015 the FFmpeg
 developers
   built with gcc 4.8 (Ubuntu/Linaro 4.8.1-10ubuntu9)
   configuration: --extra-cflags=-I/home/stefano/include --extra-
 ldflags=-L/home/stefano/lib --enable-libopenjpeg --enable-pic --enable-
 fontconfig --enable-libass --enable-version3 --prefix=/home/stefano
 --disable-shared --enable-static --enable-debug=3 --enable-pthreads
 --disable-optimizations --enable-libvorbis --enable-gpl --enable-nonfree
 --enable-libmp3lame --enable-libtheora --enable-gpl --enable-x11grab
 --enable-frei0r --enable-libfaac --enable-libcaca --enable-libflite
 --enable-libzmq --enable-libfreetype --enable-libopencv --enable-libgme
 --enable-libcdio --enable-libvo-aacenc --enable-libx264 --enable-ladspa
 --enable-libquvi --enable-opengl --enable-libvpx --enable-libxcb
   libavutil      54. 23.100 / 54. 23.100
   libavcodec     56. 35.101 / 56. 35.101
   libavformat    56. 30.100 / 56. 30.100
   libavdevice    56.  4.100 / 56.  4.100
   libavfilter     5. 14.100 /  5. 14.100
   libswscale      3.  1.101 /  3.  1.101
   libswresample   1.  1.100 /  1.  1.100
   libpostproc    53.  3.100 / 53.  3.100
 Input #0, image2, from 'fate-samples/lena.pnm':
   Duration: 00:00:00.04, start: 0.000000, bitrate: 39333 kb/s
     Stream #0:0: Video: ppm, rgb24, 256x256, 25 tbr, 25 tbn, 25 tbc
 Output #0, image2, to 'lena.yuv420p.j2k':
   Metadata:
     encoder         : Lavf56.30.100
     Stream #0:0: Video: jpeg2000 (libopenjpeg), yuv420p, 256x256, q=2-31,
 200 kb/s, 25 fps, 25 tbn, 25 tbc
     Metadata:
       encoder         : Lavc56.35.101 libopenjpeg
 Stream mapping:
   Stream #0:0 -> #0:0 (ppm (native) -> jpeg2000 (libopenjpeg))
 Press [q] to stop, [?] for help
 frame=    1 fps=0.0 q=0.0 Lsize=N/A time=00:00:00.04 bitrate=N/A
 video:46kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB
 muxing overhead: unknown
 }}}

 The generated file lena.yuv420p.j2k can be successfully decoded, but
 contains chroma artifacts. Of the three applications used to display it
 (ffplay, okular, display) only okular was able to show the image
 correctly.

 Re-encoding the file with ffmpeg generates a corrupted image, showing the
 same artifacts as the image displayed by ffplay (see attachment):
 {{{
 ffmpeg -i lena.yuv420p.j2k lena.yuv420p.png
 ffmpeg version N-71578-g57865a9 Copyright (c) 2000-2015 the FFmpeg
 developers
   built with gcc 4.8 (Ubuntu/Linaro 4.8.1-10ubuntu9)
   configuration: --extra-cflags=-I/home/stefano/include --extra-
 ldflags=-L/home/stefano/lib --enable-libopenjpeg --enable-pic --enable-
 fontconfig --enable-libass --enable-version3 --prefix=/home/stefano
 --disable-shared --enable-static --enable-debug=3 --enable-pthreads
 --disable-optimizations --enable-libvorbis --enable-gpl --enable-nonfree
 --enable-libmp3lame --enable-libtheora --enable-gpl --enable-x11grab
 --enable-frei0r --enable-libfaac --enable-libcaca --enable-libflite
 --enable-libzmq --enable-libfreetype --enable-libopencv --enable-libgme
 --enable-libcdio --enable-libvo-aacenc --enable-libx264 --enable-ladspa
 --enable-libquvi --enable-opengl --enable-libvpx --enable-libxcb
   libavutil      54. 23.100 / 54. 23.100
   libavcodec     56. 35.101 / 56. 35.101
   libavformat    56. 30.100 / 56. 30.100
   libavdevice    56.  4.100 / 56.  4.100
   libavfilter     5. 14.100 /  5. 14.100
   libswscale      3.  1.101 /  3.  1.101
   libswresample   1.  1.100 /  1.  1.100
   libpostproc    53.  3.100 / 53.  3.100
 Input #0, j2k_pipe, from 'lena.yuv420p.j2k':
   Duration: N/A, bitrate: N/A
     Stream #0:0: Video: jpeg2000 (JPEG 2000 codestream restriction 0),
 yuv420p, 256x256, 25 tbr, 25 tbn, 25 tbc
 File 'lena.yuv420p.png' already exists. Overwrite ? [y/N] y
 Output #0, apng, to 'lena.yuv420p.png':
   Metadata:
     encoder         : Lavf56.30.100
     Stream #0:0: Video: apng, rgb24, 256x256, q=2-31, 200 kb/s, 25 fps, 25
 tbn, 25 tbc
     Metadata:
       encoder         : Lavc56.35.101 apng
 Stream mapping:
   Stream #0:0 -> #0:0 (jpeg2000 (native) -> apng (native))
 Press [q] to stop, [?] for help
 [apng @ 0x24703c0] Only a single frame so saving as a normal PNG.
 frame=    1 fps=0.0 q=0.0 Lsize=     140kB time=00:00:00.04
 bitrate=28599.6kbits/s
 video:140kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB
 muxing overhead: 0.019585%
 }}}

 The problem doesn't exist if I use -pix_fmt yuv444p.

--
Ticket URL: <https://trac.ffmpeg.org/ticket/4523>
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