gst/rtpmanager/gstrtpbin.c: Ref caps when inserting into the cache.

Original commit message from CVS:
Patch by: Olivier Crete <tester at tester dot ca>
* gst/rtpmanager/gstrtpbin.c: (create_session), (get_pt_map),
(new_ssrc_pad_found):
Ref caps when inserting into the cache.
Don't leak pads.
* gst/rtpmanager/gstrtpjitterbuffer.c:
(gst_rtp_jitter_buffer_get_clock_rate),
(gst_rtp_jitter_buffer_query):
Avoid a caps leak.
Don't leak refcount in query.
* gst/rtpmanager/gstrtpptdemux.c: (gst_rtp_pt_demux_get_caps),
(gst_rtp_pt_demux_chain):
Avoid caps leaks.
* gst/rtpmanager/gstrtpsession.c: (source_get_sdes_structure),
(gst_rtp_session_init), (return_true),
(gst_rtp_session_clear_pt_map), (gst_rtp_session_cache_caps),
(gst_rtp_session_clock_rate):
Ref caps when inserting into the cache.
Fix some more caps leaks. Fixes #528245.

ChangeLog

@@ -1,3 +1,29 @@
+2008-04-21  Wim Taymans  <wim.taymans@collabora.co.uk>
+
+	Patch by: Olivier Crete <tester at tester dot ca>
+
+	* gst/rtpmanager/gstrtpbin.c: (create_session), (get_pt_map),
+	(new_ssrc_pad_found):
+	Ref caps when inserting into the cache.
+	Don't leak pads.
+
+	* gst/rtpmanager/gstrtpjitterbuffer.c:
+	(gst_rtp_jitter_buffer_get_clock_rate),
+	(gst_rtp_jitter_buffer_query):
+	Avoid a caps leak.
+	Don't leak refcount in query.
+
+	* gst/rtpmanager/gstrtpptdemux.c: (gst_rtp_pt_demux_get_caps),
+	(gst_rtp_pt_demux_chain):
+	Avoid caps leaks.
+
+	* gst/rtpmanager/gstrtpsession.c: (source_get_sdes_structure),
+	(gst_rtp_session_init), (return_true),
+	(gst_rtp_session_clear_pt_map), (gst_rtp_session_cache_caps),
+	(gst_rtp_session_clock_rate):
+	Ref caps when inserting into the cache.
+	Fix some more caps leaks. Fixes #528245.
+
 2008-04-18  Tim-Philipp Müller  <tim at centricular dot net>
 
 	* tests/icles/metadata_editor.c:

gst/rtpmanager/gstrtpbin.c

@@ -460,7 +460,8 @@ create_session (GstRtpBin * rtpbin, gint id)
   sess->bin = rtpbin;
   sess->session = session;
   sess->demux = demux;
-  sess->ptmap = g_hash_table_new (NULL, NULL);
+  sess->ptmap = g_hash_table_new_full (NULL, NULL, NULL,
+      (GDestroyNotify) gst_caps_unref);
   rtpbin->sessions = g_slist_prepend (rtpbin->sessions, sess);
 
   /* set NTP base or new session */
@@ -584,8 +585,10 @@ get_pt_map (GstRtpBinSession * session, guint pt)
 
   /* first look in the cache */
   caps = g_hash_table_lookup (session->ptmap, GINT_TO_POINTER (pt));
-  if (caps)
+  if (caps) {
+    gst_caps_ref (caps);
     goto done;
+  }
 
   bin = session->bin;
 
@@ -614,11 +617,11 @@ get_pt_map (GstRtpBinSession * session, guint pt)
 
   GST_DEBUG ("caching pt %d as %" GST_PTR_FORMAT, pt, caps);
 
-  /* store in cache */
+  /* store in cache, take additional ref */
-  g_hash_table_insert (session->ptmap, GINT_TO_POINTER (pt), caps);
+  g_hash_table_insert (session->ptmap, GINT_TO_POINTER (pt),
+      gst_caps_ref (caps));
 
 done:
-  gst_caps_ref (caps);
   GST_RTP_SESSION_UNLOCK (session);
 
   return caps;
@@ -1780,16 +1783,17 @@ new_ssrc_pad_found (GstElement * element, guint ssrc, GstPad * pad,
   /* get pad and link */
   GST_DEBUG_OBJECT (session->bin, "linking jitterbuffer");
   padname = g_strdup_printf ("src_%d", ssrc);
-  srcpad = gst_element_get_pad (element, padname);
+  srcpad = gst_element_get_static_pad (element, padname);
   g_free (padname);
   sinkpad = gst_element_get_static_pad (stream->buffer, "sink");
   gst_pad_link (srcpad, sinkpad);
   gst_object_unref (sinkpad);
+  gst_object_unref (srcpad);
 
   /* get the RTCP sync pad */
   GST_DEBUG_OBJECT (session->bin, "linking sync pad");
   padname = g_strdup_printf ("rtcp_src_%d", ssrc);
-  srcpad = gst_element_get_pad (element, padname);
+  srcpad = gst_element_get_static_pad (element, padname);
   g_free (padname);
   gst_pad_link (srcpad, stream->sync_pad);
   gst_object_unref (srcpad);

gst/rtpmanager/gstrtpjitterbuffer.c

@@ -780,6 +780,8 @@ gst_rtp_jitter_buffer_get_clock_rate (GstRtpJitterBuffer * jitterbuffer,
 
   res = gst_jitter_buffer_sink_parse_caps (jitterbuffer, caps);
 
+  gst_caps_unref (caps);
+
   return res;
 
   /* ERRORS */
@@ -1233,6 +1235,9 @@ gst_rtp_jitter_buffer_query (GstPad * pad, GstQuery * query)
       res = gst_pad_query_default (pad, query);
       break;
   }
+
+  gst_object_unref (jitterbuffer);
+
   return res;
 }
 

gst/rtpmanager/gstrtpptdemux.c

@@ -277,8 +277,11 @@ gst_rtp_pt_demux_get_caps (GstRtpPtDemux * rtpdemux, guint pt)
   g_value_unset (&args[1]);
   caps = g_value_dup_boxed (&ret);
   g_value_unset (&ret);
-  if (caps == NULL)
+  if (caps == NULL) {
     caps = GST_PAD_CAPS (rtpdemux->sink);
+    if (caps)
+      gst_caps_ref (caps);
+  }
 
   GST_DEBUG ("pt %d, got caps %" GST_PTR_FORMAT, pt, caps);
 
@@ -341,6 +344,7 @@ gst_rtp_pt_demux_chain (GstPad * pad, GstBuffer * buf)
     caps = gst_caps_make_writable (caps);
     gst_caps_set_simple (caps, "payload", G_TYPE_INT, pt, NULL);
     gst_pad_set_caps (srcpad, caps);
+    gst_caps_unref (caps);
 
     GST_DEBUG ("Adding pt=%d to the list.", pt);
     rtpdemuxpad = g_new0 (GstRtpPtDemuxPad, 1);
@@ -380,6 +384,7 @@ gst_rtp_pt_demux_chain (GstPad * pad, GstBuffer * buf)
     caps = gst_caps_make_writable (caps);
     gst_caps_set_simple (caps, "payload", G_TYPE_INT, pt, NULL);
     gst_pad_set_caps (srcpad, caps);
+    gst_caps_unref (caps);
     rtpdemuxpad->newcaps = FALSE;
   }
 

gst/rtpmanager/gstrtpsession.c

@@ -391,6 +391,7 @@ source_get_sdes_structure (RTPSource * src)
     g_value_take_string (&val, str);
     gst_structure_set_value (result, "priv", &val);
   }
+  g_value_unset (&val);
 
   return result;
 }
@@ -690,7 +691,8 @@ gst_rtp_session_init (GstRtpSession * rtpsession, GstRtpSessionClass * klass)
       (GCallback) on_bye_timeout, rtpsession);
   g_signal_connect (rtpsession->priv->session, "on-timeout",
       (GCallback) on_timeout, rtpsession);
-  rtpsession->priv->ptmap = g_hash_table_new (NULL, NULL);
+  rtpsession->priv->ptmap = g_hash_table_new_full (NULL, NULL, NULL,
+      (GDestroyNotify) gst_caps_unref);
 
   gst_segment_init (&rtpsession->recv_rtp_seg, GST_FORMAT_UNDEFINED);
   gst_segment_init (&rtpsession->send_rtp_seg, GST_FORMAT_UNDEFINED);
@@ -1068,10 +1070,16 @@ failed_thread:
   }
 }
 
+static gboolean
+return_true (gpointer key, gpointer value, gpointer user_data)
+{
+  return TRUE;
+}
+
 static void
 gst_rtp_session_clear_pt_map (GstRtpSession * rtpsession)
 {
-  /* FIXME, do something */
+  g_hash_table_foreach_remove (rtpsession->priv->ptmap, return_true, NULL);
 }
 
 /* called when the session manager has an RTP packet ready for further
@@ -1203,11 +1211,11 @@ gst_rtp_session_cache_caps (GstRtpSession * rtpsession, GstCaps * caps)
   if (!gst_structure_get_int (s, "payload", &payload))
     return;
 
-  caps = g_hash_table_lookup (priv->ptmap, GINT_TO_POINTER (payload));
+  if (g_hash_table_lookup (priv->ptmap, GINT_TO_POINTER (payload)))
-  if (caps)
     return;
 
-  g_hash_table_insert (priv->ptmap, GINT_TO_POINTER (payload), caps);
+  g_hash_table_insert (priv->ptmap, GINT_TO_POINTER (payload),
+      gst_caps_ref (caps));
 }
 
 /* called when the session manager needs the clock rate */
@@ -1229,8 +1237,10 @@ gst_rtp_session_clock_rate (RTPSession * sess, guint8 payload,
   GST_RTP_SESSION_LOCK (rtpsession);
   ipayload = payload;           /* make compiler happy */
   caps = g_hash_table_lookup (priv->ptmap, GINT_TO_POINTER (ipayload));
-  if (caps)
+  if (caps) {
+    gst_caps_ref (caps);
     goto found;
+  }
 
   /* not found in the cache, try to get it with a signal */
   g_value_init (&args[0], GST_TYPE_ELEMENT);
@@ -1258,6 +1268,8 @@ found:
   if (!gst_structure_get_int (s, "clock-rate", &result))
     goto no_clock_rate;
 
+  gst_caps_unref (caps);
+
   GST_DEBUG_OBJECT (rtpsession, "parsed clock-rate %d", result);
 
 done:
@@ -1273,6 +1285,7 @@ no_caps:
   }
 no_clock_rate:
   {
+    gst_caps_unref (caps);
     GST_DEBUG_OBJECT (rtpsession, "No clock-rate in caps!");
     goto done;
   }