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From: toqsxw@gmail.com
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To: ffmpeg-devel@ffmpeg.org
Date: Wed, 2 Apr 2025 01:16:16 +0800
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Subject: [FFmpeg-devel] [PATCH v1 19/19] avcodec/vvc/sei: add
decode_mastering_display_colour_volume
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From: Wu Jianhua <toqsxw@outlook.com>
Signed-off-by: Wu Jianhua <toqsxw@outlook.com>
---
libavcodec/vvc/sei.c | 21 +++++++++++++++++++++
1 file changed, 21 insertions(+)
diff --git a/libavcodec/vvc/sei.c b/libavcodec/vvc/sei.c
index 7763dd401c..4c5c54f36c 100644
--- a/libavcodec/vvc/sei.c
+++ b/libavcodec/vvc/sei.c
@@ -158,6 +158,24 @@ static int decode_ambient_viewing_environment(H2645SEIAmbientViewingEnvironment
return 0;
}
+static int decode_mastering_display_colour_volume(H2645SEIMasteringDisplay *h, const SEIRawMasteringDisplayColourVolume *s)
+{
+ h->present = 1;
+
+ for (int c = 0; c < 3; c++) {
+ h->display_primaries[c][0] = s->display_primaries_x[c];
+ h->display_primaries[c][1] = s->display_primaries_y[c];
+ }
+
+ h->white_point[0] = s->white_point_x;
+ h->white_point[1] = s->white_point_y;
+
+ h->max_luminance = s->max_display_mastering_luminance;
+ h->min_luminance = s->min_display_mastering_luminance;
+
+ return 0;
+}
+
int ff_vvc_sei_decode(VVCSEI *s, const H266RawSEI *sei, const struct VVCFrameContext *fc)
{
H2645SEI *c = &s->common;
@@ -192,6 +210,9 @@ int ff_vvc_sei_decode(VVCSEI *s, const H266RawSEI *sei, const struct VVCFrameCon
case SEI_TYPE_AMBIENT_VIEWING_ENVIRONMENT:
return decode_ambient_viewing_environment(&s->common.ambient_viewing_environment, payload);
+ case SEI_TYPE_MASTERING_DISPLAY_COLOUR_VOLUME:
+ return decode_mastering_display_colour_volume(&s->common.mastering_display, payload);
+
default:
av_log(fc->log_ctx, AV_LOG_DEBUG, "Skipped %s SEI %d\n",
sei->nal_unit_header.nal_unit_type == VVC_PREFIX_SEI_NUT ?
--
2.44.0.windows.1
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