From d56f601b48450bebe0fe2d1f4760e3fc25a26065 Mon Sep 17 00:00:00 2001
From: Jakub Adam <jakub.adam@collabora.com>
Date: Tue, 28 May 2024 18:26:56 +0200
Subject: [PATCH] gstvideoaggregator: preserve features in non-alpha caps

Fixes caps negotiation when sink template caps of an element inheriting
GstVideoAggregator have features different from the implicit
"memory:SystemMemory".

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/7198>
---
 .../gst-plugins-base/gst-libs/gst/video/gstvideoaggregator.c   | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/subprojects/gst-plugins-base/gst-libs/gst/video/gstvideoaggregator.c b/subprojects/gst-plugins-base/gst-libs/gst/video/gstvideoaggregator.c
index c1f3446278..3bc376eb74 100644
--- a/subprojects/gst-plugins-base/gst-libs/gst/video/gstvideoaggregator.c
+++ b/subprojects/gst-plugins-base/gst-libs/gst/video/gstvideoaggregator.c
@@ -1563,7 +1563,8 @@ _get_non_alpha_caps (GstCaps * caps)
       if (has_format) {
         s = gst_structure_copy (s);
         gst_structure_take_value (s, "format", &new_formats);
-        gst_caps_append_structure (result, s);
+        gst_caps_append_structure_full (result, s,
+            gst_caps_features_copy (gst_caps_get_features (caps, i)));
       }
 
     }