avformat/mxf: Establish register of local tags

Tags can be marked "not used" upfront, saving some space in the primer.
av_asserts0() is used to enforce that only tags that are in the primer can actually be written.
Sharing of MasteringDisplay ULs is now done via macros.
This commit is contained in:
Tomas Härdin 2021-01-27 14:08:55 +01:00
parent 5441699f83
commit ff0618b5c4
4 changed files with 250 additions and 216 deletions

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