[FFmpeg-trac] #8493(avformat:new): Allow setting mastering display metadata and content light level information in Quitcktime files

[FFmpeg]

#8493: Allow setting mastering display metadata and content light level
information in Quitcktime files
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             Reporter:  hubner       |                    Owner:
                 Type:  enhancement  |                   Status:  new
             Priority:  wish         |                Component:  avformat
              Version:  git-master   |               Resolution:
             Keywords:  mov          |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
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Comment (by hubner):

 I checked the code and there are already structs
 (AVMasteringDisplayMetadata, AVContentLightMetadata) that can store the
 information I need but at the moment they are only used for matroska de-
 and encoding and HEVC decoding.
 In version 4.1 the data were also parsed when decoding mov files but it
 seems that this was removed.

 I think to be able to generate the file I need the mov encoder would have
 to write the `clli` and the `mdcv` atoms.

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Ticket URL: <https://trac.ffmpeg.org/ticket/8493#comment:5>
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