[FFmpeg-trac] #9132(ffmpeg:open): Wrong pixel format/output when converting video to yuv444p*

FFmpeg trac at avcodec.org
Mon Aug 23 04:11:22 EEST 2021


#9132: Wrong pixel format/output when converting video to yuv444p*
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             Reporter:  viley       |                    Owner:  (none)
                 Type:  defect      |                   Status:  open
             Priority:  important   |                Component:  ffmpeg
              Version:  git-master  |               Resolution:
             Keywords:  regression  |               Blocked By:
             Blocking:              |  Reproduced by developer:  1
Analyzed by developer:  0           |
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Comment (by Balling):

 >this one case of invalid metadata

 There are other cases??

 Why you do not want to reset all
 https://github.com/jeeb/ffmpeg/commit/09abc1ea76d87d73ad2ec4a331139baeb618f8fb
 #diff-
 dc711ef6bb905f1c3a99a4552c12f72c2020e1fc6240ed5f3d9d5867081d4ca4R743?

 In particular it is very important that chroma siting (which is different
 for JPEG, avc and HDR in HEVC) will be correct.

 Ideally we should set all parameters: range, matrix and primaries/trc and
 that will immediatelly write nclx atom in mp4.
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Ticket URL: <https://trac.ffmpeg.org/ticket/9132#comment:19>
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