Fix some caps leaks in pad template creation code

gst_pad_template_new() does not take ownership of
the caps passed to it, so we need to unref the caps.

https://bugzilla.gnome.org/show_bug.cgi?id=776790
https://bugzilla.gnome.org/show_bug.cgi?id=776787

6 files changed, 7 insertions, 0 deletions

diff --git a/ext/opencv/gstcvdilateerode.cpp b/ext/opencv/gstcvdilateerode.cpp
index 2f4babc9c..05823d97e 100644
--- a/ext/opencv/gstcvdilateerode.cpp
+++ b/ext/opencv/gstcvdilateerode.cpp
@@ -144,6 +144,7 @@ gst_cv_dilate_erode_class_init (GstCvDilateErodeClass * klass)
   gst_element_class_add_pad_template (element_class, templ);
   templ = gst_pad_template_new ("src", GST_PAD_SRC, GST_PAD_ALWAYS, caps);
   gst_element_class_add_pad_template (element_class, templ);
+  gst_caps_unref (caps);
 }
 
 /* initialize the new element
diff --git a/ext/opencv/gstcvsmooth.cpp b/ext/opencv/gstcvsmooth.cpp
index 72c6f4241..181576bfd 100644
--- a/ext/opencv/gstcvsmooth.cpp
+++ b/ext/opencv/gstcvsmooth.cpp
@@ -196,6 +196,7 @@ gst_cv_smooth_class_init (GstCvSmoothClass * klass)
   gst_element_class_add_pad_template (element_class, templ);
   templ = gst_pad_template_new ("src", GST_PAD_SRC, GST_PAD_ALWAYS, caps);
   gst_element_class_add_pad_template (element_class, templ);
+  gst_caps_unref (caps);
 }
 
 /* initialize the new element
diff --git a/gst/frei0r/gstfrei0rfilter.c b/gst/frei0r/gstfrei0rfilter.c
index 0cb15c6ee..ba0d40532 100644
--- a/gst/frei0r/gstfrei0rfilter.c
+++ b/gst/frei0r/gstfrei0rfilter.c
@@ -232,6 +232,7 @@ gst_frei0r_filter_class_init (GstFrei0rFilterClass * klass,
 
   templ = gst_pad_template_new ("sink", GST_PAD_SINK, GST_PAD_ALWAYS, caps);
   gst_element_class_add_pad_template (gstelement_class, templ);
+  gst_caps_unref (caps);
 
   gsttrans_class->set_caps = GST_DEBUG_FUNCPTR (gst_frei0r_filter_set_caps);
   gsttrans_class->stop = GST_DEBUG_FUNCPTR (gst_frei0r_filter_stop);
diff --git a/gst/frei0r/gstfrei0rsrc.c b/gst/frei0r/gstfrei0rsrc.c
index e5cf41205..eb3c010fd 100644
--- a/gst/frei0r/gstfrei0rsrc.c
+++ b/gst/frei0r/gstfrei0rsrc.c
@@ -348,6 +348,7 @@ gst_frei0r_src_class_init (GstFrei0rSrcClass * klass,
 
   templ = gst_pad_template_new ("src", GST_PAD_SRC, GST_PAD_ALWAYS, caps);
   gst_element_class_add_pad_template (gstelement_class, templ);
+  gst_caps_unref (caps);
 
   gstbasesrc_class->set_caps = GST_DEBUG_FUNCPTR (gst_frei0r_src_set_caps);
   gstbasesrc_class->is_seekable =
diff --git a/sys/applemedia/vtenc.c b/sys/applemedia/vtenc.c
index d91ab824c..8b325fb82 100644
--- a/sys/applemedia/vtenc.c
+++ b/sys/applemedia/vtenc.c
@@ -194,6 +194,7 @@ gst_vtenc_base_init (GstVTEncClass * klass)
   src_template = gst_pad_template_new ("src", GST_PAD_SRC, GST_PAD_ALWAYS,
       src_caps);
   gst_element_class_add_pad_template (element_class, src_template);
+  gst_caps_unref (src_caps);
 }
 
 static void
diff --git a/sys/vdpau/gstvdpvideopostprocess.c b/sys/vdpau/gstvdpvideopostprocess.c
index 5afe5cd41..7f4f480a4 100644
--- a/sys/vdpau/gstvdpvideopostprocess.c
+++ b/sys/vdpau/gstvdpvideopostprocess.c
@@ -1233,12 +1233,14 @@ gst_vdp_vpp_class_init (GstVdpVideoPostProcessClass * klass)
   src_template = gst_pad_template_new ("src", GST_PAD_SRC, GST_PAD_ALWAYS,
       src_caps);
   gst_element_class_add_pad_template (gstelement_class, src_template);
+  gst_caps_unref (src_caps);
 
   /* SINK PAD */
   sink_caps = gst_vdp_video_buffer_get_caps (FALSE, 0);
   sink_template = gst_pad_template_new ("sink", GST_PAD_SINK, GST_PAD_ALWAYS,
       sink_caps);
   gst_element_class_add_pad_template (gstelement_class, sink_template);
+  gst_caps_unref (sink_caps);
 }
 
 static void