From 5df658cfdd11f3f65a568ee8c54c5977cf1dcefd Mon Sep 17 00:00:00 2001
From: Nicolas Dufresne <nicolas.dufresne@collabora.com>
Date: Wed, 31 Jul 2024 09:06:21 -0400
Subject: [PATCH] qt6: glwindow: Don't leak previously rendered buffer

If the consumer reads the buffers too slowily, simply unref the
previously rendered buffer instead of leaking it.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/7286>
---
 subprojects/gst-plugins-good/ext/qt6/qt6glwindow.cc | 1 +
 1 file changed, 1 insertion(+)

diff --git a/subprojects/gst-plugins-good/ext/qt6/qt6glwindow.cc b/subprojects/gst-plugins-good/ext/qt6/qt6glwindow.cc
index 7c7cdcff3c..a9a5e49729 100644
--- a/subprojects/gst-plugins-good/ext/qt6/qt6glwindow.cc
+++ b/subprojects/gst-plugins-good/ext/qt6/qt6glwindow.cc
@@ -270,6 +270,7 @@ done:
   gst_gl_context_activate (this->priv->other_context, FALSE);
 
   this->priv->result = ret;
+  gst_clear_buffer (&this->priv->produced_buffer);
   this->priv->produced_buffer = this->priv->buffer;
   this->priv->buffer = NULL;
   this->priv->updated = TRUE;