From 2d29f223389ec455bce6cc3bcbf6be917fd6b632 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Tim-Philipp=20M=C3=BCller?= <tim@centricular.net>
Date: Sun, 29 Sep 2013 23:43:23 +0100
Subject: [PATCH] opencv: don't unref NULL caps in finalize

Fixes gst-inspect-1.0 -a and generic states unit test.
---
 ext/opencv/gstdisparity.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/ext/opencv/gstdisparity.cpp b/ext/opencv/gstdisparity.cpp
index 9fcb9ee15d..f3f9d64db2 100644
--- a/ext/opencv/gstdisparity.cpp
+++ b/ext/opencv/gstdisparity.cpp
@@ -461,11 +461,11 @@ static void
 gst_disparity_finalize (GObject * object)
 {
   GstDisparity *filter;
+
   filter = GST_DISPARITY (object);
   gst_disparity_release_all_pointers (filter);
 
-  gst_caps_unref (filter->caps);
-  filter->caps = NULL;
+  gst_caps_replace (&filter->caps, NULL);
 
   g_cond_clear (&filter->cond);
   g_mutex_clear (&filter->lock);