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[FFmpeg-devel,v3,4/9] avutil/frame: clarify AV_FRAME_DATA_FILM_GRAIN_PARAMS usage

Message ID 20240315120442.73754-5-ffmpeg@haasn.xyz
State New
Headers show
Series AFGS1 film grain support | expand

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Commit Message

Niklas Haas March 15, 2024, 11:58 a.m. UTC 
From: Niklas Haas <git@haasn.dev>

To allow for AFGS1 usage, which can expose multiple parameter sets for
a single frame.
---
 libavutil/frame.h | 4 ++++
 1 file changed, 4 insertions(+)
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Patch

diff --git a/libavutil/frame.h b/libavutil/frame.h
index b94687941db..7f616488be8 100644
--- a/libavutil/frame.h
+++ b/libavutil/frame.h
@@ -180,6 +180,10 @@  enum AVFrameSideDataType {
     /**
      * Film grain parameters for a frame, described by AVFilmGrainParams.
      * 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,