[FFmpeg-trac] #8074(avformat:open): movflags write_colr not working for ProRes encoded mov files

[FFmpeg]

#8074: movflags write_colr not working for ProRes encoded mov files
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             Reporter:  en5ca        |                    Owner:  (none)
                 Type:  defect       |                   Status:  open
             Priority:  normal       |                Component:  avformat
              Version:  git-master   |               Resolution:
             Keywords:  mov          |               Blocked By:
  regression                         |
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
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Comment (by Balling):

 I will also point out two points here: first of all the command above does
 not write bt709 type of YCbCr, it just tags the output to decode like
 that. You need to specify -vf scale=out_color_matrix=bt709 for that.

 Also this thing appears to be working (matrix bt.709 is indeed correctly
 decoding stuff).

 ffmpeg -f lavfi -i testsrc=duration=10:size=1920x1080:rate=24000/1001
 '''-vf scale=out_color_matrix=bt709''' -pix_fmt yuv422p10le -colorspace
 bt709 -color_primaries bt709 -color_trc bt709 -movflags write_colr -c:v
 prores_ks -profile:v hq testsrc.mov
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Ticket URL: <https://trac.ffmpeg.org/ticket/8074#comment:9>
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