From d152c33c21eba3b9df2918fb8187ff5f839f766f Mon Sep 17 00:00:00 2001
From: Kazunori Kobayashi <kkobayas@igel.co.jp>
Date: Tue, 22 Jan 2013 18:40:28 +0900
Subject: [PATCH 31/31] videocrop: fix a memory leak caused by invoking
 gst_pad_get_peer()

Once is_query_done is set to TRUE, the function exits without decreasing
the reference count of a GstPad instance.
To fix the issue, this patch moves the call to gst_pad_get_peer() (which
increases the GstPad refence count) to after is_query_done is tested.
---
 gst/videocrop/gstvideocrop.c |    4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/gst/videocrop/gstvideocrop.c b/gst/videocrop/gstvideocrop.c
index 2114dae..49edc6e 100644
--- a/gst/videocrop/gstvideocrop.c
+++ b/gst/videocrop/gstvideocrop.c
@@ -873,7 +873,7 @@ static gboolean
 gst_video_crop_query_stride_supported (GstVideoCrop * vcrop)
 {
   static gboolean result = FALSE;
-  GstPad *peer = gst_pad_get_peer (GST_BASE_TRANSFORM (vcrop)->srcpad);
+  GstPad *peer;
   GstStructure *structure;
   GstQuery *query;
   static gboolean is_query_done = FALSE;
@@ -881,6 +881,8 @@ gst_video_crop_query_stride_supported (GstVideoCrop * vcrop)
   if (is_query_done)
     return result;
 
+  peer = gst_pad_get_peer (GST_BASE_TRANSFORM (vcrop)->srcpad);
+
   structure = gst_structure_empty_new ("GstQueryStrideSupported");
   gst_structure_set (structure, "stride-supported", G_TYPE_BOOLEAN, FALSE,
       NULL);
-- 
1.7.9.5