From: Niklas Haas <ffmpeg@haasn.xyz>
To: ffmpeg-devel@ffmpeg.org
Cc: Niklas Haas <git@haasn.dev>
Subject: [FFmpeg-devel] [PATCH v3 4/9] avutil/frame: clarify AV_FRAME_DATA_FILM_GRAIN_PARAMS usage
Date: Fri, 15 Mar 2024 12:58:57 +0100
Message-ID: <20240315120442.73754-5-ffmpeg@haasn.xyz> (raw)
In-Reply-To: <20240315120442.73754-1-ffmpeg@haasn.xyz>
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(+)
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,
--
2.44.0
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next prev parent reply other threads:[~2024-03-15 12:05 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-03-15 11:58 [FFmpeg-devel] [PATCH v3 0/9] AFGS1 film grain support Niklas Haas
2024-03-15 11:58 ` [FFmpeg-devel] [PATCH v3 1/9] avutil/film_grain_params: add extra AFGS1 metadata Niklas Haas
2024-03-15 12:18 ` James Almer
2024-03-15 11:58 ` [FFmpeg-devel] [PATCH v3 2/9] avcodec/av1dec: initialize AFGS1 VSC metadata Niklas Haas
2024-03-15 12:20 ` James Almer
2024-03-15 12:23 ` Niklas Haas
2024-03-15 12:25 ` James Almer
2024-03-15 11:58 ` [FFmpeg-devel] [PATCH v3 3/9] avcodec/libdav1d: " Niklas Haas
2024-03-15 11:58 ` Niklas Haas [this message]
2024-03-15 11:58 ` [FFmpeg-devel] [PATCH v3 5/9] avutil/film_grain_params: add av_film_grain_params_select() Niklas Haas
2024-03-15 12:22 ` Niklas Haas
2024-03-15 11:58 ` [FFmpeg-devel] [PATCH v3 6/9] avcodec/aom_film_grain: add AOM film grain synthesis Niklas Haas
2024-03-15 11:59 ` [FFmpeg-devel] [PATCH v3 7/9] avcodec/aom_film_grain: implement AFGS1 parsing Niklas Haas
2024-03-15 11:59 ` [FFmpeg-devel] [PATCH v3 8/9] avcodec/h2645_sei: decode AFGS1 T.35 SEI Niklas Haas
2024-03-15 11:59 ` [FFmpeg-devel] [PATCH v3 9/9] avcodec/hevcdec: apply AOM film grain synthesis Niklas Haas
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