[FFmpeg-trac] #10091(undetermined:new): Not reading NCLC on mov/prores files

[FFmpeg]

#10091: Not reading NCLC on mov/prores files
-------------------------------------+-------------------------------------
             Reporter:  agfline      |                     Type:  defect
               Status:  new          |                 Priority:  important
            Component:               |                  Version:  git-
  undetermined                       |  master
             Keywords:  NCLC tags    |               Blocked By:
  prores mov                         |
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------
 Summary of the bug:
 ffmpeg & ffprobe can't read NCLC tags (primaries, trc, matrix) out of
 `.mov` files containing prores video, although it's working for `.mov`
 files containing AVC video stream.

 I can observe the same behavior when looking at `AVCodecParameters`
 members (`color_primaries`, `color_trc` and `color_space`). They're
 correctly set when decoding h264 and 'unknown' with prores.

 All files have been verified with mediainfo, they do contain NCLC tags.

 How to reproduce:
 {{{
 $ ffmpeg -i ./h264.mov -codec:v prores -profile:v 0 -pix_fmt yuv422p10
 -color_primaries 1 -color_trc 1 -color_range 1 ./prores.mov
 ffmpeg version 5.1.2 Copyright (c) 2000-2022 the FFmpeg developers
   built with gcc 8 (Debian 8.3.0-6)
   configuration: --enable-shared --extra-libs='-lpthread -lm -latomic'
 --extra-cflags=-I/usr/local/include --extra-ldflags=-L/usr/local/lib
 --enable-gpl --enable-nonfree --enable-libass --enable-libfdk-aac
 --enable-libfreetype --enable-libmp3lame --enable-libopus --enable-
 libvorbis --enable-libvpx --enable-libpulse --enable-libx264 --enable-
 libtheora --enable-libxvid --enable-libspeex --enable-libsoxr --enable-
 openal --enable-cuda --pkg-config-flags=--static --enable-chromaprint
 --enable-librubberband --enable-libzimg --enable-libopenjpeg --enable-
 nvenc --enable-openssl --enable-libsnappy --enable-libx265 --enable-
 libwebp --enable-opengl --enable-libshine
   libavutil      57. 28.100 / 57. 28.100
   libavcodec     59. 37.100 / 59. 37.100
   libavformat    59. 27.100 / 59. 27.100
   libavdevice    59.  7.100 / 59.  7.100
   libavfilter     8. 44.100 /  8. 44.100
   libswscale      6.  7.100 /  6.  7.100
   libswresample   4.  7.100 /  4.  7.100
   libpostproc    56.  6.100 / 56.  6.100

 $ ffprobe -hide_banner -loglevel error -show_streams ./prores.mov | grep
 color_*
 color_range=tv
 color_space=unknown
 color_transfer=unknown
 color_primaries=unknown

 }}}
 Patches should be submitted to the ffmpeg-devel mailing list and not this
 bug tracker.
-- 
Ticket URL: <https://trac.ffmpeg.org/ticket/10091>
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