Massive leak fixing, plus code cleanups.

Original commit message from CVS:
* ext/audioresample/gstaudioresample.c:
* ext/x264/gstx264enc.c:
* gst/dvdspu/gstdvdspu.c:
* gst/dvdspu/gstdvdspu.h:
* gst/festival/gstfestival.c:
* gst/h264parse/gsth264parse.c:
* gst/mpegtsparse/mpegtspacketizer.c:
* gst/mpegtsparse/mpegtsparse.c:
* gst/multifile/gstmultifilesink.c:
* gst/multifile/gstmultifilesrc.c:
* gst/nuvdemux/gstnuvdemux.c:
* sys/dshowsrcwrapper/gstdshowaudiosrc.c:
* sys/dshowsrcwrapper/gstdshowvideosrc.c:
* sys/vcd/vcdsrc.c:
Massive leak fixing, plus code cleanups.

15 files changed, 155 insertions, 78 deletions

diff --git a/ChangeLog b/ChangeLog
index 8ebb248d..72a3b6d8 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,21 @@
+2007-09-24  Stefan Kost  <ensonic@users.sf.net>
+
+	* ext/audioresample/gstaudioresample.c:
+	* ext/x264/gstx264enc.c:
+	* gst/dvdspu/gstdvdspu.c:
+	* gst/dvdspu/gstdvdspu.h:
+	* gst/festival/gstfestival.c:
+	* gst/h264parse/gsth264parse.c:
+	* gst/mpegtsparse/mpegtspacketizer.c:
+	* gst/mpegtsparse/mpegtsparse.c:
+	* gst/multifile/gstmultifilesink.c:
+	* gst/multifile/gstmultifilesrc.c:
+	* gst/nuvdemux/gstnuvdemux.c:
+	* sys/dshowsrcwrapper/gstdshowaudiosrc.c:
+	* sys/dshowsrcwrapper/gstdshowvideosrc.c:
+	* sys/vcd/vcdsrc.c:
+	  Massive leak fixing, plus code cleanups.
+
 2007-09-22  Thomas Vander Stichele  <thomas at apestaart dot org>
 
 	* po/LINGUAS:
diff --git a/ext/audioresample/gstaudioresample.c b/ext/audioresample/gstaudioresample.c
index 6b63db33..8971824a 100644
--- a/ext/audioresample/gstaudioresample.c
+++ b/ext/audioresample/gstaudioresample.c
@@ -61,15 +61,16 @@ enum
       "endianness = (int) BYTE_ORDER, " \
       "width = (int) 16, " \
       "depth = (int) 16, " \
-      "signed = (boolean) true")
-
+      "signed = (boolean) true"
 #if 0
-  /* disabled because it segfaults */
+    /* disabled because it segfaults */
 "audio/x-raw-float, "
     "rate = (int) [ 1, MAX ], "
     "channels = (int) [ 1, MAX ], "
-    "endianness = (int) BYTE_ORDER, " "width = (int) 32")
+    "endianness = (int) BYTE_ORDER, " "width = (int) 32"
 #endif
+    )
+
      static GstStaticPadTemplate gst_audioresample_sink_template =
          GST_STATIC_PAD_TEMPLATE ("sink",
          GST_PAD_SINK, GST_PAD_ALWAYS, SUPPORTED_CAPS);
diff --git a/ext/x264/gstx264enc.c b/ext/x264/gstx264enc.c
index 4841755a..21693b8d 100644
--- a/ext/x264/gstx264enc.c
+++ b/ext/x264/gstx264enc.c
@@ -664,10 +664,9 @@ gst_x264_enc_dispose (GObject * object)
   encoder->buffer = NULL;
 
   gst_x264_enc_timestamp_queue_free (encoder);
+  gst_x264_enc_close_encoder (encoder);
 
   G_OBJECT_CLASS (parent_class)->dispose (object);
-
-  gst_x264_enc_close_encoder (encoder);
 }
 
 static gboolean
diff --git a/gst/dvdspu/gstdvdspu.c b/gst/dvdspu/gstdvdspu.c
index aca4a3bf..bb4c40e4 100644
--- a/gst/dvdspu/gstdvdspu.c
+++ b/gst/dvdspu/gstdvdspu.c
@@ -16,6 +16,22 @@
  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  * Boston, MA 02111-1307, USA.
  */
+/*
+ * SECTION:element-dvdspu
+ *
+ * <refsect2>
+ * <para>
+ * DVD sub picture overlay element.
+ * </para>
+ * <title>Example launch line</title>
+ * <para>
+ * <programlisting>
+ * FIXME: gst-launch ...
+ * </programlisting>
+ * FIXME: description for the sample launch pipeline
+ * </para>
+ * </refsect2>
+ */
 #ifdef HAVE_CONFIG_H
 #  include <config.h>
 #endif
@@ -65,8 +81,8 @@ GST_STATIC_PAD_TEMPLATE ("subpicture",
 
 GST_BOILERPLATE (GstDVDSpu, dvdspu, GstElement, GST_TYPE_ELEMENT);
 
-static void dvdspu_dispose (GstDVDSpu * dvdspu);
-static void dvdspu_finalize (GstDVDSpu * dvdspu);
+static void dvdspu_dispose (GObject * object);
+static void dvdspu_finalize (GObject * object);
 static GstStateChangeReturn dvdspu_change_state (GstElement * element,
     GstStateChange transition);
 
@@ -172,17 +188,22 @@ dvdspu_clear (GstDVDSpu * dvdspu)
 }
 
 static void
-dvdspu_dispose (GstDVDSpu * dvdspu)
+dvdspu_dispose (GObject * object)
 {
+  GstDVDSpu *dvdspu = DVD_SPU (object);
+
   /* need to hold the SPU lock in case other stuff is still running... */
-  GSTDVDSPU_LOCK (dvdspu);
+  DVD_SPU_LOCK (dvdspu);
   dvdspu_clear (dvdspu);
-  GSTDVDSPU_UNLOCK (dvdspu);
+  DVD_SPU_UNLOCK (dvdspu);
+
+  G_OBJECT_CLASS (parent_class)->dispose (object);
 }
 
 static void
-dvdspu_finalize (GstDVDSpu * dvdspu)
+dvdspu_finalize (GObject * object)
 {
+  GstDVDSpu *dvdspu = DVD_SPU (object);
   gint i;
 
   for (i = 0; i < 3; i++) {
@@ -193,6 +214,8 @@ dvdspu_finalize (GstDVDSpu * dvdspu)
   }
   g_queue_free (dvdspu->pending_spus);
   g_mutex_free (dvdspu->spu_lock);
+
+  G_OBJECT_CLASS (parent_class)->finalize (object);
 }
 
 /* With SPU lock held, clear the queue of SPU packets */
@@ -253,7 +276,7 @@ static GstFlowReturn
 dvdspu_buffer_alloc (GstPad * sinkpad, guint64 offset, guint size,
     GstCaps * caps, GstBuffer ** buf)
 {
-  GstDVDSpu *dvdspu = GSTDVDSPU (gst_pad_get_parent (sinkpad));
+  GstDVDSpu *dvdspu = DVD_SPU (gst_pad_get_parent (sinkpad));
   GstFlowReturn ret = GST_FLOW_OK;
 
   ret = gst_pad_alloc_buffer (dvdspu->srcpad, offset, size, caps, buf);
@@ -266,7 +289,7 @@ dvdspu_buffer_alloc (GstPad * sinkpad, guint64 offset, guint size,
 static gboolean
 dvdspu_src_event (GstPad * pad, GstEvent * event)
 {
-  GstDVDSpu *dvdspu = GSTDVDSPU (gst_pad_get_parent (pad));
+  GstDVDSpu *dvdspu = DVD_SPU (gst_pad_get_parent (pad));
   GstPad *peer;
   gboolean res = TRUE;
 
@@ -283,7 +306,7 @@ dvdspu_src_event (GstPad * pad, GstEvent * event)
 static gboolean
 dvdspu_video_set_caps (GstPad * pad, GstCaps * caps)
 {
-  GstDVDSpu *dvdspu = GSTDVDSPU (gst_pad_get_parent (pad));
+  GstDVDSpu *dvdspu = DVD_SPU (gst_pad_get_parent (pad));
   gboolean res = FALSE;
   GstStructure *s;
   gint w, h;
@@ -299,7 +322,7 @@ dvdspu_video_set_caps (GstPad * pad, GstCaps * caps)
     goto done;
   }
 
-  GSTDVDSPU_LOCK (dvdspu);
+  DVD_SPU_LOCK (dvdspu);
 
   state = &dvdspu->spu_state;
 
@@ -319,7 +342,7 @@ dvdspu_video_set_caps (GstPad * pad, GstCaps * caps)
           sizeof (guint16) * state->UV_stride);
     }
   }
-  GSTDVDSPU_UNLOCK (dvdspu);
+  DVD_SPU_UNLOCK (dvdspu);
 
   res = TRUE;
 done:
@@ -330,7 +353,7 @@ done:
 static GstCaps *
 dvdspu_video_proxy_getcaps (GstPad * pad)
 {
-  GstDVDSpu *dvdspu = GSTDVDSPU (gst_pad_get_parent (pad));
+  GstDVDSpu *dvdspu = DVD_SPU (gst_pad_get_parent (pad));
   GstCaps *caps;
   GstPad *otherpad;
 
@@ -384,7 +407,7 @@ dvdspu_video_event (GstPad * pad, GstEvent * event)
         gboolean in_still;
 
         if (gst_structure_get_boolean (structure, "still-state", &in_still)) {
-          GSTDVDSPU_LOCK (dvdspu);
+          DVD_SPU_LOCK (dvdspu);
           if (in_still) {
             state->flags |= SPU_STATE_STILL_FRAME;
             /* Entering still. Advance the SPU to make sure the state is 
@@ -396,7 +419,7 @@ dvdspu_video_event (GstPad * pad, GstEvent * event)
             dvdspu_redraw_still (dvdspu);
           } else
             state->flags &= ~(SPU_STATE_STILL_FRAME);
-          GSTDVDSPU_UNLOCK (dvdspu);
+          DVD_SPU_UNLOCK (dvdspu);
         }
         gst_event_unref (event);
         res = TRUE;
@@ -425,7 +448,7 @@ dvdspu_video_event (GstPad * pad, GstEvent * event)
           update, rate, arate, format, GST_TIME_ARGS (start),
           GST_TIME_ARGS (stop), GST_TIME_ARGS (time));
 
-      GSTDVDSPU_LOCK (dvdspu);
+      DVD_SPU_LOCK (dvdspu);
 
       if (update && start > dvdspu->video_seg.last_stop) {
 #if 0
@@ -435,19 +458,19 @@ dvdspu_video_event (GstPad * pad, GstEvent * event)
 #endif
         while (dvdspu->video_seg.last_stop < start &&
             !(state->flags & SPU_STATE_STILL_FRAME)) {
-          GSTDVDSPU_UNLOCK (dvdspu);
+          DVD_SPU_UNLOCK (dvdspu);
           if (dvspu_handle_vid_buffer (dvdspu, NULL) != GST_FLOW_OK) {
-            GSTDVDSPU_LOCK (dvdspu);
+            DVD_SPU_LOCK (dvdspu);
             break;
           }
-          GSTDVDSPU_LOCK (dvdspu);
+          DVD_SPU_LOCK (dvdspu);
         }
       }
 
       gst_segment_set_newsegment_full (&dvdspu->video_seg, update, rate, arate,
           format, start, stop, time);
 
-      GSTDVDSPU_UNLOCK (dvdspu);
+      DVD_SPU_UNLOCK (dvdspu);
 
       res = gst_pad_event_default (pad, event);
       break;
@@ -458,12 +481,12 @@ dvdspu_video_event (GstPad * pad, GstEvent * event)
     case GST_EVENT_FLUSH_STOP:
       res = gst_pad_event_default (pad, event);
 
-      GSTDVDSPU_LOCK (dvdspu);
+      DVD_SPU_LOCK (dvdspu);
       gst_segment_init (&dvdspu->video_seg, GST_FORMAT_UNDEFINED);
       gst_buffer_replace (&dvdspu->ref_frame, NULL);
       gst_buffer_replace (&dvdspu->pending_frame, NULL);
 
-      GSTDVDSPU_UNLOCK (dvdspu);
+      DVD_SPU_UNLOCK (dvdspu);
       goto done;
     default:
       res = gst_pad_event_default (pad, event);
@@ -505,7 +528,7 @@ dvspu_handle_vid_buffer (GstDVDSpu * dvdspu, GstBuffer * buf)
   GstFlowReturn ret;
   gboolean using_ref = FALSE;
 
-  GSTDVDSPU_LOCK (dvdspu);
+  DVD_SPU_LOCK (dvdspu);
 
   if (buf == NULL) {
     GstClockTime next_ts = dvdspu->video_seg.last_stop;
@@ -581,7 +604,7 @@ dvspu_handle_vid_buffer (GstDVDSpu * dvdspu, GstBuffer * buf)
         GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (buf)));
   }
 
-  GSTDVDSPU_UNLOCK (dvdspu);
+  DVD_SPU_UNLOCK (dvdspu);
 
   /* just push out the incoming buffer without touching it */
   ret = gst_pad_push (dvdspu->srcpad, buf);
@@ -590,7 +613,7 @@ dvspu_handle_vid_buffer (GstDVDSpu * dvdspu, GstBuffer * buf)
 
 no_ref_frame:
 
-  GSTDVDSPU_UNLOCK (dvdspu);
+  DVD_SPU_UNLOCK (dvdspu);
 
   return GST_FLOW_OK;
 }
@@ -1122,7 +1145,7 @@ dvdspu_subpic_chain (GstPad * pad, GstBuffer * buf)
       GST_TIME_FORMAT " and size %u",
       GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (buf)), GST_BUFFER_SIZE (buf));
 
-  GSTDVDSPU_LOCK (dvdspu);
+  DVD_SPU_LOCK (dvdspu);
 
   if (GST_BUFFER_TIMESTAMP_IS_VALID (buf)) {
     gst_segment_set_last_stop (&dvdspu->subp_seg, GST_FORMAT_TIME,
@@ -1215,7 +1238,7 @@ dvdspu_subpic_chain (GstPad * pad, GstBuffer * buf)
     }
   }
 
-  GSTDVDSPU_UNLOCK (dvdspu);
+  DVD_SPU_UNLOCK (dvdspu);
 
   gst_object_unref (dvdspu);
   return GST_FLOW_OK;
@@ -1243,7 +1266,7 @@ dvdspu_subpic_event (GstPad * pad, GstEvent * event)
         break;
       }
 
-      GSTDVDSPU_LOCK (dvdspu);
+      DVD_SPU_LOCK (dvdspu);
       if (GST_EVENT_IS_SERIALIZED (event)) {
         SpuPacket *spu_packet = g_new0 (SpuPacket, 1);
 
@@ -1258,7 +1281,7 @@ dvdspu_subpic_event (GstPad * pad, GstEvent * event)
        * This requires some dancing to preserve locking order and handle
        * flushes correctly */
       need_push = (dvdspu->pending_frame != NULL);
-      GSTDVDSPU_UNLOCK (dvdspu);
+      DVD_SPU_UNLOCK (dvdspu);
       if (need_push) {
         GstBuffer *to_push = NULL;
         gboolean flushing;
@@ -1270,15 +1293,15 @@ dvdspu_subpic_event (GstPad * pad, GstEvent * event)
         flushing = GST_PAD_IS_FLUSHING (dvdspu->videosinkpad);
         GST_OBJECT_UNLOCK (dvdspu->videosinkpad);
 
-        GSTDVDSPU_LOCK (dvdspu);
+        DVD_SPU_LOCK (dvdspu);
         if (dvdspu->pending_frame == NULL || flushing) {
           /* Got flushed while waiting for the stream lock */
-          GSTDVDSPU_UNLOCK (dvdspu);
+          DVD_SPU_UNLOCK (dvdspu);
         } else {
           to_push = dvdspu->pending_frame;
           dvdspu->pending_frame = NULL;
 
-          GSTDVDSPU_UNLOCK (dvdspu);
+          DVD_SPU_UNLOCK (dvdspu);
           gst_pad_push (dvdspu->srcpad, to_push);
         }
         GST_LOG_OBJECT (dvdspu, "Dropping stream lock");
@@ -1306,10 +1329,10 @@ dvdspu_subpic_event (GstPad * pad, GstEvent * event)
           update, rate, arate, format, GST_TIME_ARGS (start),
           GST_TIME_ARGS (stop), GST_TIME_ARGS (time));
 
-      GSTDVDSPU_LOCK (dvdspu);
+      DVD_SPU_LOCK (dvdspu);
       gst_segment_set_newsegment_full (&dvdspu->subp_seg, update, rate, arate,
           format, start, stop, time);
-      GSTDVDSPU_UNLOCK (dvdspu);
+      DVD_SPU_UNLOCK (dvdspu);
 
       gst_event_unref (event);
       break;
@@ -1318,9 +1341,9 @@ dvdspu_subpic_event (GstPad * pad, GstEvent * event)
       gst_event_unref (event);
       goto done;
     case GST_EVENT_FLUSH_STOP:
-      GSTDVDSPU_LOCK (dvdspu);
+      DVD_SPU_LOCK (dvdspu);
       dvdspu_flush_spu_info (dvdspu);
-      GSTDVDSPU_UNLOCK (dvdspu);
+      DVD_SPU_UNLOCK (dvdspu);
 
       /* We don't forward flushes on the spu pad */
       gst_event_unref (event);
@@ -1346,9 +1369,9 @@ dvdspu_change_state (GstElement * element, GstStateChange transition)
 
   switch (transition) {
     case GST_STATE_CHANGE_PAUSED_TO_READY:
-      GSTDVDSPU_LOCK (dvdspu);
+      DVD_SPU_LOCK (dvdspu);
       dvdspu_clear (dvdspu);
-      GSTDVDSPU_UNLOCK (dvdspu);
+      DVD_SPU_UNLOCK (dvdspu);
       break;
     default:
       break;
@@ -1364,7 +1387,7 @@ gstdvdspu_plugin_init (GstPlugin * plugin)
       0, "DVD Sub-picture Overlay decoder/renderer");
 
   return gst_element_register (plugin, "dvdspu",
-      GST_RANK_NONE, GST_TYPE_GSTDVDSPU);
+      GST_RANK_NONE, GST_TYPE_DVD_SPU);
 }
 
 GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
diff --git a/gst/dvdspu/gstdvdspu.h b/gst/dvdspu/gstdvdspu.h
index 46923a58..8710aeb7 100644
--- a/gst/dvdspu/gstdvdspu.h
+++ b/gst/dvdspu/gstdvdspu.h
@@ -16,26 +16,26 @@
  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  * Boston, MA 02111-1307, USA.
  */
-#ifndef __GSTDVDSPU_H__
-#define __GSTDVDSPU_H__
+#ifndef __DVD_SPU_H__
+#define __DVD_SPU_H__
 
 #include <gst/gst.h>
 
 G_BEGIN_DECLS
 
-#define GST_TYPE_GSTDVDSPU \
+#define GST_TYPE_DVD_SPU \
   (dvdspu_get_type())
-#define GSTDVDSPU(obj) \
-  (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_GSTDVDSPU,GstDVDSpu))
-#define GSTDVDSPU_CLASS(klass) \
-  (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_GSTDVDSPU,GstDVDSpuClass))
-#define GST_IS_PLUGIN_TEMPLATE(obj) \
-  (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_GSTDVDSPU))
-#define GST_IS_PLUGIN_TEMPLATE_CLASS(klass) \
-  (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_GSTDVDSPU))
-
-#define GSTDVDSPU_LOCK(s) g_mutex_lock ((s)->spu_lock);
-#define GSTDVDSPU_UNLOCK(s) g_mutex_unlock ((s)->spu_lock);
+#define DVD_SPU(obj) \
+  (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_DVD_SPU,GstDVDSpu))
+#define DVD_SPU_CLASS(klass) \
+  (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_DVD_SPU,GstDVDSpuClass))
+#define GST_IS_DVD_SPU(obj) \
+  (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_DVD_SPU))
+#define GST_IS_DVD_SPU_CLASS(klass) \
+  (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_DVD_SPU))
+
+#define DVD_SPU_LOCK(s) g_mutex_lock ((s)->spu_lock);
+#define DVD_SPU_UNLOCK(s) g_mutex_unlock ((s)->spu_lock);
 
 typedef struct GstDVDSpu      GstDVDSpu;
 typedef struct GstDVDSpuClass GstDVDSpuClass;
@@ -223,4 +223,4 @@ void gstdvdspu_render_spu (GstDVDSpu *dvdspu, GstBuffer *buf);
 
 G_END_DECLS
 
-#endif /* __GSTDVDSPU_H__ */
+#endif /* __DVD_SPU_H__ */
diff --git a/gst/festival/gstfestival.c b/gst/festival/gstfestival.c
index 0d8395c9..7a147c95 100644
--- a/gst/festival/gstfestival.c
+++ b/gst/festival/gstfestival.c
@@ -97,6 +97,8 @@
 GST_DEBUG_CATEGORY_STATIC (festival_debug);
 #define GST_CAT_DEFAULT festival_debug
 
+static void gst_festival_finalize (GObject * object);
+
 static void gst_festival_base_init (gpointer g_class);
 static void gst_festival_class_init (GstFestivalClass * klass);
 static void gst_festival_init (GstFestival * festival);
@@ -189,13 +191,17 @@ gst_festival_base_init (gpointer g_class)
 static void
 gst_festival_class_init (GstFestivalClass * klass)
 {
+  GObjectClass *gobject_class;
   GstElementClass *gstelement_class;
 
-  gstelement_class = (GstElementClass *) klass;
+  gobject_class = G_OBJECT_CLASS (klass);
+  gstelement_class = GST_ELEMENT_CLASS (klass);
 
   parent_class = g_type_class_peek_parent (klass);
 
-  gstelement_class->change_state = gst_festival_change_state;
+  gobject_class->finalize = GST_DEBUG_FUNCPTR (gst_festival_finalize);
+  gstelement_class->change_state =
+      GST_DEBUG_FUNCPTR (gst_festival_change_state);
 }
 
 static void
@@ -213,6 +219,16 @@ gst_festival_init (GstFestival * festival)
   festival->info = festival_default_info ();
 }
 
+static void
+gst_festival_finalize (GObject * object)
+{
+  GstFestival *festival = GST_FESTIVAL (object);
+
+  g_free (festival->info);
+
+  G_OBJECT_CLASS (parent_class)->finalize (object);
+}
+
 static gboolean
 read_response (GstFestival * festival)
 {
diff --git a/gst/h264parse/gsth264parse.c b/gst/h264parse/gsth264parse.c
index ca1d8ea3..fef7ddfc 100644
--- a/gst/h264parse/gsth264parse.c
+++ b/gst/h264parse/gsth264parse.c
@@ -75,6 +75,8 @@ gst_h264_parse_finalize (GObject * object)
 
   h264parse = GST_H264PARSE (object);
 
+  g_object_unref (h264parse->adapter);
+
   G_OBJECT_CLASS (parent_class)->finalize (object);
 }
 
diff --git a/gst/mpegtsparse/mpegtspacketizer.c b/gst/mpegtsparse/mpegtspacketizer.c
index 7e51f1eb..1530c10d 100644
--- a/gst/mpegtsparse/mpegtspacketizer.c
+++ b/gst/mpegtsparse/mpegtspacketizer.c
@@ -103,8 +103,7 @@ mpegts_packetizer_dispose (GObject * object)
     packetizer->disposed = TRUE;
   }
 
-  if (G_OBJECT_CLASS (mpegts_packetizer_parent_class)->dispose)
-    G_OBJECT_CLASS (mpegts_packetizer_parent_class)->dispose (object);
+  G_OBJECT_CLASS (mpegts_packetizer_parent_class)->dispose (object);
 }
 
 static gboolean
@@ -127,8 +126,7 @@ mpegts_packetizer_finalize (GObject * object)
       stream_foreach_remove, packetizer);
   g_hash_table_destroy (packetizer->streams);
 
-  if (G_OBJECT_CLASS (mpegts_packetizer_parent_class)->finalize)
-    G_OBJECT_CLASS (mpegts_packetizer_parent_class)->finalize (object);
+  G_OBJECT_CLASS (mpegts_packetizer_parent_class)->finalize (object);
 }
 
 static gboolean
diff --git a/gst/mpegtsparse/mpegtsparse.c b/gst/mpegtsparse/mpegtsparse.c
index 13ba609e..0d0a4232 100644
--- a/gst/mpegtsparse/mpegtsparse.c
+++ b/gst/mpegtsparse/mpegtsparse.c
@@ -241,8 +241,7 @@ mpegts_parse_dispose (GObject * object)
     parse->disposed = TRUE;
   }
 
-  if (G_OBJECT_CLASS (parent_class)->dispose)
-    G_OBJECT_CLASS (parent_class)->dispose (object);
+  G_OBJECT_CLASS (parent_class)->dispose (object);
 }
 
 static void
@@ -256,8 +255,7 @@ mpegts_parse_finalize (GObject * object)
   g_hash_table_destroy (parse->programs);
   g_hash_table_destroy (parse->psi_pids);
 
-  if (G_OBJECT_CLASS (parent_class)->finalize)
-    G_OBJECT_CLASS (parent_class)->finalize (object);
+  G_OBJECT_CLASS (parent_class)->finalize (object);
 }
 
 static void
diff --git a/gst/multifile/gstmultifilesink.c b/gst/multifile/gstmultifilesink.c
index 58977817..9280f1f5 100644
--- a/gst/multifile/gstmultifilesink.c
+++ b/gst/multifile/gstmultifilesink.c
@@ -142,10 +142,10 @@ gst_multi_file_sink_dispose (GObject * object)
 {
   GstMultiFileSink *sink = GST_MULTI_FILE_SINK (object);
 
-  G_OBJECT_CLASS (parent_class)->dispose (object);
-
   g_free (sink->filename);
   sink->filename = NULL;
+
+  G_OBJECT_CLASS (parent_class)->dispose (object);
 }
 
 static gboolean
diff --git a/gst/multifile/gstmultifilesrc.c b/gst/multifile/gstmultifilesrc.c
index 43e449d5..57d02c67 100644
--- a/gst/multifile/gstmultifilesrc.c
+++ b/gst/multifile/gstmultifilesrc.c
@@ -147,12 +147,12 @@ gst_multi_file_src_dispose (GObject * object)
 {
   GstMultiFileSrc *src = GST_MULTI_FILE_SRC (object);
 
-  G_OBJECT_CLASS (parent_class)->dispose (object);
-
   g_free (src->filename);
   src->filename = NULL;
   if (src->caps)
     gst_caps_unref (src->caps);
+
+  G_OBJECT_CLASS (parent_class)->dispose (object);
 }
 
 static GstCaps *
diff --git a/gst/nuvdemux/gstnuvdemux.c b/gst/nuvdemux/gstnuvdemux.c
index 219a580a..20ba7538 100644
--- a/gst/nuvdemux/gstnuvdemux.c
+++ b/gst/nuvdemux/gstnuvdemux.c
@@ -802,11 +802,16 @@ gst_nuv_demux_sink_activate (GstPad * sinkpad)
 
   if (gst_pad_check_pull_range (sinkpad)) {
     nuv->mode = 0;
-    nuv->adapter = NULL;
+    if (nuv->adapter != NULL) {
+      gst_object_unref (nuv->adapter);
+      nuv->adapter = NULL;
+    }
     res = gst_pad_activate_pull (sinkpad, TRUE);
   } else {
     nuv->mode = 1;
-    nuv->adapter = gst_adapter_new ();
+    if (!nuv->adapter) {
+      nuv->adapter = gst_adapter_new ();
+    }
     res = gst_pad_activate_push (sinkpad, TRUE);
   }
 
diff --git a/sys/dshowsrcwrapper/gstdshowaudiosrc.c b/sys/dshowsrcwrapper/gstdshowaudiosrc.c
index 87c12789..4d960e64 100644
--- a/sys/dshowsrcwrapper/gstdshowaudiosrc.c
+++ b/sys/dshowsrcwrapper/gstdshowaudiosrc.c
@@ -239,6 +239,8 @@ gst_dshowaudiosrc_dispose (GObject * gobject)
   }
 
   CoUninitialize ();
+
+  G_OBJECT_CLASS (parent_class)->dispose (object);
 }
 
 
diff --git a/sys/dshowsrcwrapper/gstdshowvideosrc.c b/sys/dshowsrcwrapper/gstdshowvideosrc.c
index 38b779dd..72fbc58b 100644
--- a/sys/dshowsrcwrapper/gstdshowvideosrc.c
+++ b/sys/dshowsrcwrapper/gstdshowvideosrc.c
@@ -35,9 +35,9 @@ GST_DEBUG_CATEGORY_STATIC (dshowvideosrc_debug);
 #define GST_CAT_DEFAULT dshowvideosrc_debug
 
 const GUID MEDIASUBTYPE_I420
-    =
-    { 0x30323449, 0x0000, 0x0010, {0x80, 0x00, 0x00, 0xAA, 0x00, 0x38, 0x9B,
-        0x71} };
+    = { 0x30323449, 0x0000, 0x0010, {0x80, 0x00, 0x00, 0xAA, 0x00, 0x38, 0x9B,
+    0x71}
+};
 
 static GstStaticPadTemplate src_template = GST_STATIC_PAD_TEMPLATE ("src",
     GST_PAD_SRC,
@@ -245,6 +245,8 @@ gst_dshowvideosrc_dispose (GObject * gobject)
   }
 
   CoUninitialize ();
+
+  G_OBJECT_CLASS (parent_class)->dispose (object);
 }
 
 static gboolean
diff --git a/sys/vcd/vcdsrc.c b/sys/vcd/vcdsrc.c
index b48e307b..0ccebc33 100644
--- a/sys/vcd/vcdsrc.c
+++ b/sys/vcd/vcdsrc.c
@@ -83,6 +83,8 @@ gst_vcdsrc_setup_interfaces (GType type)
 GST_BOILERPLATE_FULL (GstVCDSrc, gst_vcdsrc, GstPushSrc, GST_TYPE_PUSH_SRC,
     gst_vcdsrc_setup_interfaces);
 
+static void gst_vcdsrc_finalize (GObject * object);
+
 static void gst_vcdsrc_set_property (GObject * object, guint prop_id,
     const GValue * value, GParamSpec * pspec);
 static void gst_vcdsrc_get_property (GObject * object, guint prop_id,
@@ -116,6 +118,7 @@ gst_vcdsrc_class_init (GstVCDSrcClass * klass)
 
   gobject_class->set_property = gst_vcdsrc_set_property;
   gobject_class->get_property = gst_vcdsrc_get_property;
+  gobject_class->finalize = gst_vcdsrc_finalize;
 
   g_object_class_install_property (gobject_class, PROP_DEVICE,
       g_param_spec_string ("device", "Device",
@@ -149,6 +152,16 @@ gst_vcdsrc_init (GstVCDSrc * vcdsrc, GstVCDSrcClass * klass)
   vcdsrc->max_errors = 16;
 }
 
+static void
+gst_vcdsrc_finalize (GObject * object)
+{
+  GstVCDSrc *vcdsrc = GST_VCDSRC (object);
+
+  g_free (vcdsrc->device);
+
+  G_OBJECT_CLASS (parent_class)->finalize (object);
+}
+
 
 static inline guint64
 gst_vcdsrc_msf (GstVCDSrc * vcdsrc, gint track)