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avutil/frame: clarify AV_FRAME_DATA_FILM_GRAIN_PARAMS usage

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To allow for AFGS1 usage, which can expose multiple parameter sets for
a single frame.
This commit is contained in:
Niklas Haas 2024-03-15 12:14:31 +01:00
parent 1539efaacb
commit ea147f3b50
1 changed files with 4 additions and 0 deletions
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4
libavutil/frame.h
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@ -180,6 +180,10 @@ enum AVFrameSideDataType {
/** /**
* Film grain parameters for a frame, described by AVFilmGrainParams. * Film grain parameters for a frame, described by AVFilmGrainParams.
* Must be present for every frame which should have film grain applied. * Must be present for every frame which should have film grain applied.
*
* May be present multiple times, for example when there are multiple
* alternative parameter sets for different video signal characteristics.
* The user should select the most appropriate set for the application.
*/ */
AV_FRAME_DATA_FILM_GRAIN_PARAMS, AV_FRAME_DATA_FILM_GRAIN_PARAMS,