From 31b770af0b20c33e8b83c2f8bd3ea92f779c0e70 Mon Sep 17 00:00:00 2001
From: Thibault Saunier <tsaunier@gnome.org>
Date: Mon, 6 Jul 2015 19:33:35 +0200
Subject: [PATCH] gtkglsink: Release the widget lock when trying to get the GL
 context

Otherwise we might be waiting for the lock on the main loop (for
example in the ->render vmethod) and thus we will deadlock.
---
 ext/gtk/gtkgstglwidget.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/ext/gtk/gtkgstglwidget.c b/ext/gtk/gtkgstglwidget.c
index e7e12210cd..81950342d5 100644
--- a/ext/gtk/gtkgstglwidget.c
+++ b/ext/gtk/gtkgstglwidget.c
@@ -683,7 +683,9 @@ gtk_gst_gl_widget_init_winsys (GtkGstGLWidget * widget)
   }
 
   if (!widget->priv->other_context) {
+    g_mutex_unlock (&widget->priv->lock);
     _invoke_on_main ((ThreadFunc) _get_gl_context, widget);
+    g_mutex_lock (&widget->priv->lock);
   }
 
   if (!GST_GL_IS_CONTEXT (widget->priv->other_context)) {