[FFmpeg-trac] #9575(avfilter:new): extractplanes=y produces garbage with gray10 input

[FFmpeg]

#9575: extractplanes=y produces garbage with gray10 input
-------------------------------------+-------------------------------------
             Reporter:  Diederick    |                     Type:  defect
  Niehorster                         |
               Status:  new          |                 Priority:  normal
            Component:  avfilter     |                  Version:  git-
             Keywords:               |  master
  extractplanes                      |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------
 I have a file with gray10le frames in them. While pointless in a way,
 running extractplanes=y filter on them produces garbage:
 {{{
 ffmpeg.exe -y -i test.mkv -vf extractplanes=y -frames:v 1 nhcvbqaw.png
 }}}

 The following simpler command works fine
 {{{
 ffmpeg.exe -y -i test.mkv -frames:v 1 nhcvbqaw.png
 }}}

 While its pointless to extract the luma plane from a frame that only has a
 luma plane, i guess it should work? Input and output files are attached.

 full output:
 {{{
 ffmpeg.exe -y -i test.mkv -vf extractplanes=y -frames:v 1 nhcvbqaw.png
 ffmpeg version 2021-12-27-git-617452ce2c-full_build-www.gyan.dev Copyright
 (c) 2000-2021 the FFmpeg developers
   built with gcc 11.2.0 (Rev2, Built by MSYS2 project)
   configuration: --enable-gpl --enable-version3 --enable-static --disable-
 w32threads --disable-autodetect --enable-fontconfig --enable-iconv
 --enable-gnutls --enable-libxml2 --enable-gmp --enable-bzlib --enable-lzma
 --enable-libsnappy --enable-zlib --enable-librist --enable-libsrt
 --enable-libssh --enable-libzmq --enable-avisynth --enable-libbluray
 --enable-libcaca --enable-sdl2 --enable-libdav1d --enable-libdavs2
 --enable-libuavs3d --enable-libzvbi --enable-librav1e --enable-libsvtav1
 --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs2
 --enable-libxvid --enable-libaom --enable-libopenjpeg --enable-libvpx
 --enable-mediafoundation --enable-libass --enable-frei0r --enable-
 libfreetype --enable-libfribidi --enable-libvidstab --enable-libvmaf
 --enable-libzimg --enable-amf --enable-cuda-llvm --enable-cuvid --enable-
 ffnvcodec --enable-nvdec --enable-nvenc --enable-d3d11va --enable-dxva2
 --enable-libmfx --enable-libshaderc --enable-vulkan --enable-libplacebo
 --enable-opencl --enable-libcdio --enable-libgme --enable-libmodplug
 --enable-libopenmpt --enable-libopencore-amrwb --enable-libmp3lame
 --enable-libshine --enable-libtheora --enable-libtwolame --enable-libvo-
 amrwbenc --enable-libilbc --enable-libgsm --enable-libopencore-amrnb
 --enable-libopus --enable-libspeex --enable-libvorbis --enable-ladspa
 --enable-libbs2b --enable-libflite --enable-libmysofa --enable-
 librubberband --enable-libsoxr --enable-chromaprint
   libavutil      57. 13.100 / 57. 13.100
   libavcodec     59. 15.101 / 59. 15.101
   libavformat    59. 10.100 / 59. 10.100
   libavdevice    59.  1.100 / 59.  1.100
   libavfilter     8. 21.100 /  8. 21.100
   libswscale      6.  1.102 /  6.  1.102
   libswresample   4.  0.100 /  4.  0.100
   libpostproc    56.  0.100 / 56.  0.100
 Input #0, matroska,webm, from 'test.mkv':
   Metadata:
     ENCODER         : Lavf59.10.100
   Duration: 00:00:00.02, start: 0.000000, bitrate: 1142412 kb/s
   Stream #0:0: Video: ffv1 (FFV1 / 0x31564646), gray10le(pc), 1152x390,
 500 fps, 500 tbr, 1k tbn (default)
     Metadata:
       DURATION        : 00:00:00.018000000
 Stream mapping:
   Stream #0:0 -> #0:0 (ffv1 (native) -> png (native))
 Press [q] to stop, [?] for help
 Output #0, image2, to 'nhcvbqaw.png':
   Metadata:
     encoder         : Lavf59.10.100
   Stream #0:0: Video: png, gray16be(pc, progressive), 1152x390, q=2-31,
 200 kb/s, 500 fps, 500 tbn (default)
     Metadata:
       DURATION        : 00:00:00.018000000
       encoder         : Lavc59.15.101 png
 frame=    1 fps=0.0 q=-0.0 Lsize=N/A time=00:00:00.00 bitrate=N/A
 speed=0.0193x
 video:463kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB
 muxing overhead: unknown
 }}}
-- 
Ticket URL: <https://trac.ffmpeg.org/ticket/9575>
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