From dbc5475c97bfef43d6c6b2361036b4cc2a884f18 Mon Sep 17 00:00:00 2001
From: Wim Taymans <wim.taymans@gmail.com>
Date: Tue, 7 Oct 2008 11:33:10 +0000
Subject: gst/rtpmanager/gstrtpbin.c: Release pads of the session manager.

Original commit message from CVS:
* gst/rtpmanager/gstrtpbin.c: (find_session_by_pad),
(free_session), (gst_rtp_bin_dispose), (remove_recv_rtp),
(remove_recv_rtcp), (remove_send_rtp), (remove_rtcp),
(gst_rtp_bin_release_pad):
Release pads of the session manager.
Start implementing releasing pads of gstrtpbin.
* gst/rtpmanager/gstrtpsession.c: (remove_recv_rtp_sink),
(remove_recv_rtcp_sink), (remove_send_rtp_sink),
(remove_send_rtcp_src), (gst_rtp_session_release_pad):
Implement releasing pads in gstrtpsession.
---
 gst/rtpmanager/gstrtpsession.c | 102 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 102 insertions(+)

(limited to 'gst/rtpmanager/gstrtpsession.c')

diff --git a/gst/rtpmanager/gstrtpsession.c b/gst/rtpmanager/gstrtpsession.c
index e78e972d..5257b50e 100644
--- a/gst/rtpmanager/gstrtpsession.c
+++ b/gst/rtpmanager/gstrtpsession.c
@@ -1720,6 +1720,29 @@ create_recv_rtp_sink (GstRtpSession * rtpsession)
   return rtpsession->recv_rtp_sink;
 }
 
+/* Remove sinkpad to receive RTP packets from senders. This will also remove
+ * the srcpad for the RTP packets.
+ */
+static void
+remove_recv_rtp_sink (GstRtpSession * rtpsession)
+{
+  GST_DEBUG_OBJECT (rtpsession, "removing RTP sink pad");
+
+  /* deactivate from source to sink */
+  gst_pad_set_active (rtpsession->recv_rtp_src, FALSE);
+  gst_pad_set_active (rtpsession->recv_rtp_sink, FALSE);
+
+  /* remove pads */
+  gst_element_remove_pad (GST_ELEMENT_CAST (rtpsession),
+      rtpsession->recv_rtp_sink);
+  rtpsession->recv_rtp_sink = NULL;
+
+  GST_DEBUG_OBJECT (rtpsession, "removing RTP src pad");
+  gst_element_remove_pad (GST_ELEMENT_CAST (rtpsession),
+      rtpsession->recv_rtp_src);
+  rtpsession->recv_rtp_src = NULL;
+}
+
 /* Create a sinkpad to receive RTCP messages from senders, this will also create a
  * sync_src pad for the SR packets.
  */
@@ -1754,6 +1777,23 @@ create_recv_rtcp_sink (GstRtpSession * rtpsession)
   return rtpsession->recv_rtcp_sink;
 }
 
+static void
+remove_recv_rtcp_sink (GstRtpSession * rtpsession)
+{
+  GST_DEBUG_OBJECT (rtpsession, "removing RTCP sink pad");
+
+  gst_pad_set_active (rtpsession->sync_src, FALSE);
+  gst_pad_set_active (rtpsession->recv_rtcp_sink, FALSE);
+
+  gst_element_remove_pad (GST_ELEMENT_CAST (rtpsession),
+      rtpsession->recv_rtcp_sink);
+  rtpsession->recv_rtcp_sink = NULL;
+
+  GST_DEBUG_OBJECT (rtpsession, "removing sync src pad");
+  gst_element_remove_pad (GST_ELEMENT_CAST (rtpsession), rtpsession->sync_src);
+  rtpsession->sync_src = NULL;
+}
+
 /* Create a sinkpad to receive RTP packets for receivers. This will also create a
  * send_rtp_src pad.
  */
@@ -1788,6 +1828,23 @@ create_send_rtp_sink (GstRtpSession * rtpsession)
   return rtpsession->send_rtp_sink;
 }
 
+static void
+remove_send_rtp_sink (GstRtpSession * rtpsession)
+{
+  GST_DEBUG_OBJECT (rtpsession, "removing pad");
+
+  gst_pad_set_active (rtpsession->send_rtp_src, FALSE);
+  gst_pad_set_active (rtpsession->send_rtp_sink, FALSE);
+
+  gst_element_remove_pad (GST_ELEMENT_CAST (rtpsession),
+      rtpsession->send_rtp_sink);
+  rtpsession->send_rtp_sink = NULL;
+
+  gst_element_remove_pad (GST_ELEMENT_CAST (rtpsession),
+      rtpsession->send_rtp_src);
+  rtpsession->send_rtp_src = NULL;
+}
+
 /* Create a srcpad with the RTCP packets to send out.
  * This pad will be driven by the RTP session manager when it wants to send out
  * RTCP packets.
@@ -1812,6 +1869,18 @@ create_send_rtcp_src (GstRtpSession * rtpsession)
   return rtpsession->send_rtcp_src;
 }
 
+static void
+remove_send_rtcp_src (GstRtpSession * rtpsession)
+{
+  GST_DEBUG_OBJECT (rtpsession, "removing pad");
+
+  gst_pad_set_active (rtpsession->send_rtcp_src, FALSE);
+
+  gst_element_remove_pad (GST_ELEMENT_CAST (rtpsession),
+      rtpsession->send_rtcp_src);
+  rtpsession->send_rtcp_src = NULL;
+}
+
 static GstPad *
 gst_rtp_session_request_new_pad (GstElement * element,
     GstPadTemplate * templ, const gchar * name)
@@ -1879,6 +1948,39 @@ exists:
 static void
 gst_rtp_session_release_pad (GstElement * element, GstPad * pad)
 {
+  GstRtpSession *rtpsession;
+
+  g_return_if_fail (GST_IS_RTP_SESSION (element));
+  g_return_if_fail (GST_IS_PAD (pad));
+
+  rtpsession = GST_RTP_SESSION (element);
+
+  GST_DEBUG_OBJECT (element, "releasing pad %s:%s", GST_DEBUG_PAD_NAME (pad));
+
+  GST_RTP_SESSION_LOCK (rtpsession);
+
+  if (rtpsession->recv_rtp_sink == pad) {
+    remove_recv_rtp_sink (rtpsession);
+  } else if (rtpsession->recv_rtcp_sink == pad) {
+    remove_recv_rtcp_sink (rtpsession);
+  } else if (rtpsession->send_rtp_sink == pad) {
+    remove_send_rtp_sink (rtpsession);
+  } else if (rtpsession->send_rtcp_src == pad) {
+    remove_send_rtcp_src (rtpsession);
+  } else
+    goto wrong_pad;
+
+  GST_RTP_SESSION_UNLOCK (rtpsession);
+
+  return;
+
+  /* ERRORS */
+wrong_pad:
+  {
+    GST_RTP_SESSION_UNLOCK (rtpsession);
+    g_warning ("gstrtpsession: asked to release an unknown pad");
+    return;
+  }
 }
 
 void
-- 
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