From 4c9d4d30cb90e90468141b93980c90e389c66690 Mon Sep 17 00:00:00 2001
From: Aleksandr Slobodeniuk <aslobodeniuk@fluendo.com>
Date: Fri, 17 Mar 2023 20:44:30 +0100
Subject: [PATCH] d3d11convert: protect 'add-borders' with mutex

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/4205>
---
 subprojects/gst-plugins-bad/sys/d3d11/gstd3d11convert.cpp | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/subprojects/gst-plugins-bad/sys/d3d11/gstd3d11convert.cpp b/subprojects/gst-plugins-bad/sys/d3d11/gstd3d11convert.cpp
index 4604239055..64c0d81ada 100644
--- a/subprojects/gst-plugins-bad/sys/d3d11/gstd3d11convert.cpp
+++ b/subprojects/gst-plugins-bad/sys/d3d11/gstd3d11convert.cpp
@@ -1889,11 +1889,12 @@ static void
 gst_d3d11_base_convert_set_add_border (GstD3D11BaseConvert * self,
     gboolean add_border)
 {
-  gboolean prev = self->add_borders;
+  GstD3D11SRWLockGuard lk (&self->lock);
 
-  self->add_borders = add_border;
-  if (prev != self->add_borders)
+  if (add_border != self->add_borders) {
+    self->add_borders = add_border;
     gst_base_transform_reconfigure_src (GST_BASE_TRANSFORM_CAST (self));
+  }
 }
 
 static void