[FFmpeg-cvslog] avcodec/vvc/sei: add decode_mastering_display_colour_volume

[Wu Jianhua]

ffmpeg | branch: master | Wu Jianhua <toqsxw at outlook.com> | Sun Apr 27 19:44:50 2025 +0800| [a02e880e35926c37797c87a215a745245570f369] | committer: Nuo Mi

avcodec/vvc/sei: add decode_mastering_display_colour_volume

Signed-off-by: Wu Jianhua <toqsxw at outlook.com>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=a02e880e35926c37797c87a215a745245570f369
---

 libavcodec/vvc/sei.c | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/libavcodec/vvc/sei.c b/libavcodec/vvc/sei.c
index 0692a99fc8..d8ab2bf245 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 ?