tests/check/elements/rtpbin.c - mtk-gst-plugins-good-debian - Git at Google

 /* GStreamer
  *
  * unit test for gstrtpbin
  *
  * Copyright (C) <2009> Wim Taymans <wim.taymans@gmail.com>
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  * Library General Public License for more details.
  *
  * You should have received a copy of the GNU Library General Public
  * License along with this library; if not, write to the
  * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
  * Boston, MA 02110-1301, USA.
  */

 #include <gst/check/gstcheck.h>

 GST_START_TEST (test_pads)
 {
   GstElement *element;
   GstPad *pad;

   element = gst_element_factory_make ("rtpsession", NULL);

   pad = gst_element_get_request_pad (element, "recv_rtcp_sink");
   gst_object_unref (pad);
   gst_object_unref (element);
 }

 GST_END_TEST;

 GST_START_TEST (test_cleanup_send)
 {
   GstElement *rtpbin;
   GstPad *rtp_sink, *rtp_src, *rtcp_src;
   GObject *session;
   gint count = 2;

   rtpbin = gst_element_factory_make ("rtpbin", "rtpbin");

   while (count--) {
     /* request session 0 */
     rtp_sink = gst_element_get_request_pad (rtpbin, "send_rtp_sink_0");
     fail_unless (rtp_sink != NULL);
     ASSERT_OBJECT_REFCOUNT (rtp_sink, "rtp_sink", 2);

     /* this static pad should be created automatically now */
     rtp_src = gst_element_get_static_pad (rtpbin, "send_rtp_src_0");
     fail_unless (rtp_src != NULL);
     ASSERT_OBJECT_REFCOUNT (rtp_src, "rtp_src", 2);

     /* we should be able to get an internal session 0 now */
     g_signal_emit_by_name (rtpbin, "get-internal-session", 0, &session);
     fail_unless (session != NULL);
     g_object_unref (session);

     /* get the send RTCP pad too */
     rtcp_src = gst_element_get_request_pad (rtpbin, "send_rtcp_src_0");
     fail_unless (rtcp_src != NULL);
     ASSERT_OBJECT_REFCOUNT (rtcp_src, "rtcp_src", 2);

     gst_element_release_request_pad (rtpbin, rtp_sink);
     /* we should only have our refs to the pads now */
     ASSERT_OBJECT_REFCOUNT (rtp_sink, "rtp_sink", 1);
     ASSERT_OBJECT_REFCOUNT (rtp_src, "rtp_src", 1);
     ASSERT_OBJECT_REFCOUNT (rtcp_src, "rtp_src", 2);

     /* the other pad should be gone now */
     fail_unless (gst_element_get_static_pad (rtpbin, "send_rtp_src_0") == NULL);

     /* internal session should still be there */
     g_signal_emit_by_name (rtpbin, "get-internal-session", 0, &session);
     fail_unless (session != NULL);
     g_object_unref (session);

     /* release the RTCP pad */
     gst_element_release_request_pad (rtpbin, rtcp_src);
     /* we should only have our refs to the pads now */
     ASSERT_OBJECT_REFCOUNT (rtp_sink, "rtp_sink", 1);
     ASSERT_OBJECT_REFCOUNT (rtp_src, "rtp_src", 1);
     ASSERT_OBJECT_REFCOUNT (rtcp_src, "rtp_src", 1);

     /* the session should be gone now */
     g_signal_emit_by_name (rtpbin, "get-internal-session", 0, &session);
     fail_unless (session == NULL);

     /* unref the request pad and the static pad */
     gst_object_unref (rtp_sink);
     gst_object_unref (rtp_src);
     gst_object_unref (rtcp_src);
   }

   gst_object_unref (rtpbin);
 }

 GST_END_TEST;

 typedef struct
 {
   guint16 seqnum;
   gboolean pad_added;
   GstPad *pad;
   GMutex lock;
   GCond cond;
   GstPad *sinkpad;
   GList *pads;
   GstCaps *caps;
 } CleanupData;

 static void
 init_data (CleanupData * data)
 {
   data->seqnum = 10;
   data->pad_added = FALSE;
   g_mutex_init (&data->lock);
   g_cond_init (&data->cond);
   data->pads = NULL;
   data->caps = NULL;
 }

 static void
 clean_data (CleanupData * data)
 {
   g_list_foreach (data->pads, (GFunc) gst_object_unref, NULL);
   g_list_free (data->pads);
   g_mutex_clear (&data->lock);
   g_cond_clear (&data->cond);
   if (data->caps)
     gst_caps_unref (data->caps);
 }

 static guint8 rtp_packet[] = { 0x80, 0x60, 0x94, 0xbc, 0x8f, 0x37, 0x4e, 0xb8,
   0x44, 0xa8, 0xf3, 0x7c, 0x06, 0x6a, 0x0c, 0xce,
   0x13, 0x25, 0x19, 0x69, 0x1f, 0x93, 0x25, 0x9d,
   0x2b, 0x82, 0x31, 0x3b, 0x36, 0xc1, 0x3c, 0x13
 };

 static GstFlowReturn
 chain_rtp_packet (GstPad * pad, CleanupData * data)
 {
   GstFlowReturn res;
   GstSegment segment;
   GstBuffer *buffer;
   GstMapInfo map;

   if (data->caps == NULL) {
     data->caps = gst_caps_from_string ("application/x-rtp,"
         "media=(string)audio, clock-rate=(int)44100, "
         "encoding-name=(string)L16, encoding-params=(string)1, channels=(int)1");
     data->seqnum = 0;
   }

   gst_pad_send_event (pad, gst_event_new_stream_start (GST_OBJECT_NAME (pad)));
   gst_pad_send_event (pad, gst_event_new_caps (data->caps));
   gst_segment_init (&segment, GST_FORMAT_TIME);
   gst_pad_send_event (pad, gst_event_new_segment (&segment));

   buffer = gst_buffer_new_and_alloc (sizeof (rtp_packet));
   gst_buffer_map (buffer, &map, GST_MAP_WRITE);
   memcpy (map.data, rtp_packet, sizeof (rtp_packet));

   map.data[2] = (data->seqnum >> 8) & 0xff;
   map.data[3] = data->seqnum & 0xff;

   data->seqnum++;
   gst_buffer_unmap (buffer, &map);

   res = gst_pad_chain (pad, buffer);

   return res;
 }

 static GstFlowReturn
 dummy_chain (GstPad * pad, GstObject * parent, GstBuffer * buffer)
 {
   gst_buffer_unref (buffer);

   return GST_FLOW_OK;
 }

 static GstStaticPadTemplate sink_factory = GST_STATIC_PAD_TEMPLATE ("sink",
     GST_PAD_SINK,
     GST_PAD_ALWAYS,
     GST_STATIC_CAPS ("application/x-rtp"));


 static GstPad *
 make_sinkpad (CleanupData * data)
 {
   GstPad *pad;

   pad = gst_pad_new_from_static_template (&sink_factory, "sink");

   gst_pad_set_chain_function (pad, dummy_chain);
   gst_pad_set_active (pad, TRUE);

   data->pads = g_list_prepend (data->pads, pad);

   return pad;
 }

 static void
 pad_added_cb (GstElement * rtpbin, GstPad * pad, CleanupData * data)
 {
   GstPad *sinkpad;

   GST_DEBUG ("pad added %s:%s\n", GST_DEBUG_PAD_NAME (pad));

   if (GST_PAD_IS_SINK (pad))
     return;

   fail_unless (data->pad_added == FALSE);

   sinkpad = make_sinkpad (data);
   fail_unless (gst_pad_link (pad, sinkpad) == GST_PAD_LINK_OK);

   g_mutex_lock (&data->lock);
   data->pad_added = TRUE;
   data->pad = pad;
   g_cond_signal (&data->cond);
   g_mutex_unlock (&data->lock);
 }

 static void
 pad_removed_cb (GstElement * rtpbin, GstPad * pad, CleanupData * data)
 {
   GST_DEBUG ("pad removed %s:%s\n", GST_DEBUG_PAD_NAME (pad));

   if (data->pad != pad)
     return;

   fail_unless (data->pad_added == TRUE);

   g_mutex_lock (&data->lock);
   data->pad_added = FALSE;
   g_cond_signal (&data->cond);
   g_mutex_unlock (&data->lock);
 }

 GST_START_TEST (test_cleanup_recv)
 {
   GstElement *rtpbin;
   GstPad *rtp_sink;
   CleanupData data;
   GstStateChangeReturn ret;
   GstFlowReturn res;
   gint count = 2;

   init_data (&data);

   rtpbin = gst_element_factory_make ("rtpbin", "rtpbin");

   g_signal_connect (rtpbin, "pad-added", (GCallback) pad_added_cb, &data);
   g_signal_connect (rtpbin, "pad-removed", (GCallback) pad_removed_cb, &data);

   ret = gst_element_set_state (rtpbin, GST_STATE_PLAYING);
   fail_unless (ret == GST_STATE_CHANGE_SUCCESS);

   while (count--) {
     /* request session 0 */
     rtp_sink = gst_element_get_request_pad (rtpbin, "recv_rtp_sink_0");
     fail_unless (rtp_sink != NULL);
     ASSERT_OBJECT_REFCOUNT (rtp_sink, "rtp_sink", 2);

     /* no sourcepads are created yet */
     fail_unless (rtpbin->numsinkpads == 1);
     fail_unless (rtpbin->numsrcpads == 0);

     res = chain_rtp_packet (rtp_sink, &data);
     GST_DEBUG ("res %d, %s\n", res, gst_flow_get_name (res));
     fail_unless (res == GST_FLOW_OK);

     res = chain_rtp_packet (rtp_sink, &data);
     GST_DEBUG ("res %d, %s\n", res, gst_flow_get_name (res));
     fail_unless (res == GST_FLOW_OK);

     /* we wait for the new pad to appear now */
     g_mutex_lock (&data.lock);
     while (!data.pad_added)
       g_cond_wait (&data.cond, &data.lock);
     g_mutex_unlock (&data.lock);

     /* sourcepad created now */
     fail_unless (rtpbin->numsinkpads == 1);
     fail_unless (rtpbin->numsrcpads == 1);

     /* remove the session */
     gst_element_release_request_pad (rtpbin, rtp_sink);
     gst_object_unref (rtp_sink);

     /* pad should be gone now */
     g_mutex_lock (&data.lock);
     while (data.pad_added)
       g_cond_wait (&data.cond, &data.lock);
     g_mutex_unlock (&data.lock);

     /* nothing left anymore now */
     fail_unless (rtpbin->numsinkpads == 0);
     fail_unless (rtpbin->numsrcpads == 0);
   }

   ret = gst_element_set_state (rtpbin, GST_STATE_NULL);
   fail_unless (ret == GST_STATE_CHANGE_SUCCESS);

   gst_object_unref (rtpbin);

   clean_data (&data);
 }

 GST_END_TEST;

 GST_START_TEST (test_cleanup_recv2)
 {
   GstElement *rtpbin;
   GstPad *rtp_sink;
   CleanupData data;
   GstStateChangeReturn ret;
   GstFlowReturn res;
   gint count = 2;

   init_data (&data);

   rtpbin = gst_element_factory_make ("rtpbin", "rtpbin");

   g_signal_connect (rtpbin, "pad-added", (GCallback) pad_added_cb, &data);
   g_signal_connect (rtpbin, "pad-removed", (GCallback) pad_removed_cb, &data);

   ret = gst_element_set_state (rtpbin, GST_STATE_PLAYING);
   fail_unless (ret == GST_STATE_CHANGE_SUCCESS);

   /* request session 0 */
   rtp_sink = gst_element_get_request_pad (rtpbin, "recv_rtp_sink_0");
   fail_unless (rtp_sink != NULL);
   ASSERT_OBJECT_REFCOUNT (rtp_sink, "rtp_sink", 2);

   while (count--) {
     /* no sourcepads are created yet */
     fail_unless (rtpbin->numsinkpads == 1);
     fail_unless (rtpbin->numsrcpads == 0);

     res = chain_rtp_packet (rtp_sink, &data);
     GST_DEBUG ("res %d, %s\n", res, gst_flow_get_name (res));
     fail_unless (res == GST_FLOW_OK);

     res = chain_rtp_packet (rtp_sink, &data);
     GST_DEBUG ("res %d, %s\n", res, gst_flow_get_name (res));
     fail_unless (res == GST_FLOW_OK);

     /* we wait for the new pad to appear now */
     g_mutex_lock (&data.lock);
     while (!data.pad_added)
       g_cond_wait (&data.cond, &data.lock);
     g_mutex_unlock (&data.lock);

     /* sourcepad created now */
     fail_unless (rtpbin->numsinkpads == 1);
     fail_unless (rtpbin->numsrcpads == 1);

     /* change state */
     ret = gst_element_set_state (rtpbin, GST_STATE_NULL);
     fail_unless (ret == GST_STATE_CHANGE_SUCCESS);

     /* pad should be gone now */
     g_mutex_lock (&data.lock);
     while (data.pad_added)
       g_cond_wait (&data.cond, &data.lock);
     g_mutex_unlock (&data.lock);

     /* back to playing for the next round */
     ret = gst_element_set_state (rtpbin, GST_STATE_PLAYING);
     fail_unless (ret == GST_STATE_CHANGE_SUCCESS);
   }

   /* remove the session */
   gst_element_release_request_pad (rtpbin, rtp_sink);
   gst_object_unref (rtp_sink);

   /* nothing left anymore now */
   fail_unless (rtpbin->numsinkpads == 0);
   fail_unless (rtpbin->numsrcpads == 0);

   ret = gst_element_set_state (rtpbin, GST_STATE_NULL);
   fail_unless (ret == GST_STATE_CHANGE_SUCCESS);

   gst_object_unref (rtpbin);

   clean_data (&data);
 }

 GST_END_TEST;

 GST_START_TEST (test_request_pad_by_template_name)
 {
   GstElement *rtpbin;
   GstPad *rtp_sink1, *rtp_sink2, *rtp_sink3;

   rtpbin = gst_element_factory_make ("rtpbin", "rtpbin");
   rtp_sink1 = gst_element_get_request_pad (rtpbin, "recv_rtp_sink_%u");
   fail_unless (rtp_sink1 != NULL);
   fail_unless_equals_string (GST_PAD_NAME (rtp_sink1), "recv_rtp_sink_0");
   ASSERT_OBJECT_REFCOUNT (rtp_sink1, "rtp_sink1", 2);

   rtp_sink2 = gst_element_get_request_pad (rtpbin, "recv_rtp_sink_%u");
   fail_unless (rtp_sink2 != NULL);
   fail_unless_equals_string (GST_PAD_NAME (rtp_sink2), "recv_rtp_sink_1");
   ASSERT_OBJECT_REFCOUNT (rtp_sink2, "rtp_sink2", 2);

   rtp_sink3 = gst_element_get_request_pad (rtpbin, "recv_rtp_sink_%u");
   fail_unless (rtp_sink3 != NULL);
   fail_unless_equals_string (GST_PAD_NAME (rtp_sink3), "recv_rtp_sink_2");
   ASSERT_OBJECT_REFCOUNT (rtp_sink3, "rtp_sink3", 2);


   gst_element_release_request_pad (rtpbin, rtp_sink2);
   gst_element_release_request_pad (rtpbin, rtp_sink1);
   gst_element_release_request_pad (rtpbin, rtp_sink3);
   ASSERT_OBJECT_REFCOUNT (rtp_sink3, "rtp_sink3", 1);
   ASSERT_OBJECT_REFCOUNT (rtp_sink2, "rtp_sink2", 1);
   ASSERT_OBJECT_REFCOUNT (rtp_sink1, "rtp_sink", 1);
   gst_object_unref (rtp_sink1);
   gst_object_unref (rtp_sink2);
   gst_object_unref (rtp_sink3);

   gst_object_unref (rtpbin);
 }

 GST_END_TEST;

 static GstElement *
 encoder_cb (GstElement * rtpbin, guint sessid, GstElement * bin)
 {
   GstPad *srcpad, *sinkpad;

   fail_unless (sessid == 2);

   GST_DEBUG ("making encoder");
   sinkpad = gst_ghost_pad_new_no_target ("rtp_sink_2", GST_PAD_SINK);
   srcpad = gst_ghost_pad_new_no_target ("rtp_src_2", GST_PAD_SRC);

   gst_element_add_pad (bin, sinkpad);
   gst_element_add_pad (bin, srcpad);

   return gst_object_ref (bin);
 }

 static GstElement *
 encoder_cb2 (GstElement * rtpbin, guint sessid, GstElement * bin)
 {
   GstPad *srcpad, *sinkpad;

   fail_unless (sessid == 3);

   GST_DEBUG ("making encoder");
   sinkpad = gst_ghost_pad_new_no_target ("rtp_sink_3", GST_PAD_SINK);
   srcpad = gst_ghost_pad_new_no_target ("rtp_src_3", GST_PAD_SRC);

   gst_element_add_pad (bin, sinkpad);
   gst_element_add_pad (bin, srcpad);

   return gst_object_ref (bin);
 }

 GST_START_TEST (test_encoder)
 {
   GstElement *rtpbin, *bin;
   GstPad *rtp_sink1, *rtp_sink2;
   gulong id;

   bin = gst_bin_new ("rtpenc");

   rtpbin = gst_element_factory_make ("rtpbin", "rtpbin");

   id = g_signal_connect (rtpbin, "request-rtp-encoder", (GCallback) encoder_cb,
       bin);

   rtp_sink1 = gst_element_get_request_pad (rtpbin, "send_rtp_sink_2");
   fail_unless (rtp_sink1 != NULL);
   fail_unless_equals_string (GST_PAD_NAME (rtp_sink1), "send_rtp_sink_2");
   ASSERT_OBJECT_REFCOUNT (rtp_sink1, "rtp_sink1", 2);

   g_signal_handler_disconnect (rtpbin, id);

   id = g_signal_connect (rtpbin, "request-rtp-encoder", (GCallback) encoder_cb2,
       bin);

   rtp_sink2 = gst_element_get_request_pad (rtpbin, "send_rtp_sink_3");
   fail_unless (rtp_sink2 != NULL);

   /* remove the session */
   gst_element_release_request_pad (rtpbin, rtp_sink1);
   gst_object_unref (rtp_sink1);

   gst_element_release_request_pad (rtpbin, rtp_sink2);
   gst_object_unref (rtp_sink2);

   /* nothing left anymore now */
   fail_unless (rtpbin->numsinkpads == 0);
   fail_unless (rtpbin->numsrcpads == 0);

   gst_object_unref (rtpbin);
   gst_object_unref (bin);
 }

 GST_END_TEST;

 static GstElement *
 decoder_cb (GstElement * rtpbin, guint sessid, gpointer user_data)
 {
   GstElement *bin;
   GstPad *srcpad, *sinkpad;

   bin = gst_bin_new (NULL);

   GST_DEBUG ("making decoder");
   sinkpad = gst_ghost_pad_new_no_target ("rtp_sink", GST_PAD_SINK);
   srcpad = gst_ghost_pad_new_no_target ("rtp_src", GST_PAD_SRC);

   gst_element_add_pad (bin, sinkpad);
   gst_element_add_pad (bin, srcpad);

   return bin;
 }

 GST_START_TEST (test_decoder)
 {
   GstElement *rtpbin;
   GstPad *rtp_sink1, *rtp_sink2;
   gulong id;


   rtpbin = gst_element_factory_make ("rtpbin", "rtpbin");

   id = g_signal_connect (rtpbin, "request-rtp-decoder", (GCallback) decoder_cb,
       NULL);

   rtp_sink1 = gst_element_get_request_pad (rtpbin, "recv_rtp_sink_2");
   fail_unless (rtp_sink1 != NULL);
   fail_unless_equals_string (GST_PAD_NAME (rtp_sink1), "recv_rtp_sink_2");
   ASSERT_OBJECT_REFCOUNT (rtp_sink1, "rtp_sink1", 2);

   rtp_sink2 = gst_element_get_request_pad (rtpbin, "recv_rtp_sink_3");
   fail_unless (rtp_sink2 != NULL);

   g_signal_handler_disconnect (rtpbin, id);

   /* remove the session */
   gst_element_release_request_pad (rtpbin, rtp_sink1);
   gst_object_unref (rtp_sink1);

   gst_element_release_request_pad (rtpbin, rtp_sink2);
   gst_object_unref (rtp_sink2);

   /* nothing left anymore now */
   fail_unless (rtpbin->numsinkpads == 0);
   fail_unless (rtpbin->numsrcpads == 0);

   gst_object_unref (rtpbin);
 }

 GST_END_TEST;

 static GstElement *
 aux_sender_cb (GstElement * rtpbin, guint sessid, gpointer user_data)
 {
   GstElement *bin;
   GstPad *srcpad, *sinkpad;

   bin = gst_bin_new (NULL);

   GST_DEBUG ("making AUX sender");
   sinkpad = gst_ghost_pad_new_no_target ("sink_2", GST_PAD_SINK);
   gst_element_add_pad (bin, sinkpad);

   srcpad = gst_ghost_pad_new_no_target ("src_2", GST_PAD_SRC);
   gst_element_add_pad (bin, srcpad);
   srcpad = gst_ghost_pad_new_no_target ("src_1", GST_PAD_SRC);
   gst_element_add_pad (bin, srcpad);
   srcpad = gst_ghost_pad_new_no_target ("src_3", GST_PAD_SRC);
   gst_element_add_pad (bin, srcpad);

   return bin;
 }

 GST_START_TEST (test_aux_sender)
 {
   GstElement *rtpbin;
   GstPad *rtp_sink1, *rtp_src, *rtcp_src;
   gulong id;

   rtpbin = gst_element_factory_make ("rtpbin", "rtpbin");

   id = g_signal_connect (rtpbin, "request-aux-sender",
       (GCallback) aux_sender_cb, NULL);

   rtp_sink1 = gst_element_get_request_pad (rtpbin, "send_rtp_sink_2");
   fail_unless (rtp_sink1 != NULL);
   fail_unless_equals_string (GST_PAD_NAME (rtp_sink1), "send_rtp_sink_2");
   ASSERT_OBJECT_REFCOUNT (rtp_sink1, "rtp_sink1", 2);

   g_signal_handler_disconnect (rtpbin, id);

   rtp_src = gst_element_get_static_pad (rtpbin, "send_rtp_src_2");
   fail_unless (rtp_src != NULL);
   gst_object_unref (rtp_src);

   rtp_src = gst_element_get_static_pad (rtpbin, "send_rtp_src_1");
   fail_unless (rtp_src != NULL);
   gst_object_unref (rtp_src);

   rtcp_src = gst_element_get_request_pad (rtpbin, "send_rtcp_src_1");
   fail_unless (rtcp_src != NULL);
   gst_element_release_request_pad (rtpbin, rtcp_src);
   gst_object_unref (rtcp_src);

   rtp_src = gst_element_get_static_pad (rtpbin, "send_rtp_src_3");
   fail_unless (rtp_src != NULL);
   gst_object_unref (rtp_src);

   /* remove the session */
   gst_element_release_request_pad (rtpbin, rtp_sink1);
   gst_object_unref (rtp_sink1);

   gst_object_unref (rtpbin);
 }

 GST_END_TEST;

 static GstElement *
 aux_receiver_cb (GstElement * rtpbin, guint sessid, gpointer user_data)
 {
   GstElement *bin;
   GstPad *srcpad, *sinkpad;

   bin = gst_bin_new (NULL);

   GST_DEBUG ("making AUX receiver");
   srcpad = gst_ghost_pad_new_no_target ("src_2", GST_PAD_SRC);
   gst_element_add_pad (bin, srcpad);

   sinkpad = gst_ghost_pad_new_no_target ("sink_2", GST_PAD_SINK);
   gst_element_add_pad (bin, sinkpad);
   sinkpad = gst_ghost_pad_new_no_target ("sink_1", GST_PAD_SINK);
   gst_element_add_pad (bin, sinkpad);
   sinkpad = gst_ghost_pad_new_no_target ("sink_3", GST_PAD_SINK);
   gst_element_add_pad (bin, sinkpad);

   return bin;
 }

 GST_START_TEST (test_aux_receiver)
 {
   GstElement *rtpbin;
   GstPad *rtp_sink1, *rtp_sink2, *rtcp_sink;
   gulong id;

   rtpbin = gst_element_factory_make ("rtpbin", "rtpbin");

   id = g_signal_connect (rtpbin, "request-aux-receiver",
       (GCallback) aux_receiver_cb, NULL);

   rtp_sink1 = gst_element_get_request_pad (rtpbin, "recv_rtp_sink_2");
   fail_unless (rtp_sink1 != NULL);

   rtp_sink2 = gst_element_get_request_pad (rtpbin, "recv_rtp_sink_1");
   fail_unless (rtp_sink2 != NULL);

   g_signal_handler_disconnect (rtpbin, id);

   rtcp_sink = gst_element_get_request_pad (rtpbin, "recv_rtcp_sink_1");
   fail_unless (rtcp_sink != NULL);
   gst_element_release_request_pad (rtpbin, rtcp_sink);
   gst_object_unref (rtcp_sink);

   /* remove the session */
   gst_element_release_request_pad (rtpbin, rtp_sink1);
   gst_object_unref (rtp_sink1);
   gst_element_release_request_pad (rtpbin, rtp_sink2);
   gst_object_unref (rtp_sink2);

   gst_object_unref (rtpbin);
 }

 GST_END_TEST;

 static Suite *
 rtpbin_suite (void)
 {
   Suite *s = suite_create ("rtpbin");
   TCase *tc_chain = tcase_create ("general");

   suite_add_tcase (s, tc_chain);
   tcase_add_test (tc_chain, test_pads);
   tcase_add_test (tc_chain, test_cleanup_send);
   tcase_add_test (tc_chain, test_cleanup_recv);
   tcase_add_test (tc_chain, test_cleanup_recv2);
   tcase_add_test (tc_chain, test_request_pad_by_template_name);
   tcase_add_test (tc_chain, test_encoder);
   tcase_add_test (tc_chain, test_decoder);
   tcase_add_test (tc_chain, test_aux_sender);
   tcase_add_test (tc_chain, test_aux_receiver);

   return s;
 }

 GST_CHECK_MAIN (rtpbin);
	/* GStreamer
	*
	* unit test for gstrtpbin
	*
	* Copyright (C) <2009> Wim Taymans <wim.taymans@gmail.com>
	*
	* This library is free software; you can redistribute it and/or
	* modify it under the terms of the GNU Library General Public
	* License as published by the Free Software Foundation; either
	* version 2 of the License, or (at your option) any later version.
	*
	* This library is distributed in the hope that it will be useful,
	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	* Library General Public License for more details.
	*
	* You should have received a copy of the GNU Library General Public
	* License along with this library; if not, write to the
	* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
	* Boston, MA 02110-1301, USA.
	*/

	#include <gst/check/gstcheck.h>

	GST_START_TEST (test_pads)
	{
	GstElement *element;
	GstPad *pad;

	element = gst_element_factory_make ("rtpsession", NULL);

	pad = gst_element_get_request_pad (element, "recv_rtcp_sink");
	gst_object_unref (pad);
	gst_object_unref (element);
	}

	GST_END_TEST;

	GST_START_TEST (test_cleanup_send)
	{
	GstElement *rtpbin;
	GstPad rtp_sink, rtp_src, *rtcp_src;
	GObject *session;
	gint count = 2;

	rtpbin = gst_element_factory_make ("rtpbin", "rtpbin");

	while (count--) {
	/* request session 0 */
	rtp_sink = gst_element_get_request_pad (rtpbin, "send_rtp_sink_0");
	fail_unless (rtp_sink != NULL);
	ASSERT_OBJECT_REFCOUNT (rtp_sink, "rtp_sink", 2);

	/* this static pad should be created automatically now */
	rtp_src = gst_element_get_static_pad (rtpbin, "send_rtp_src_0");
	fail_unless (rtp_src != NULL);
	ASSERT_OBJECT_REFCOUNT (rtp_src, "rtp_src", 2);

	/* we should be able to get an internal session 0 now */
	g_signal_emit_by_name (rtpbin, "get-internal-session", 0, &session);
	fail_unless (session != NULL);
	g_object_unref (session);

	/* get the send RTCP pad too */
	rtcp_src = gst_element_get_request_pad (rtpbin, "send_rtcp_src_0");
	fail_unless (rtcp_src != NULL);
	ASSERT_OBJECT_REFCOUNT (rtcp_src, "rtcp_src", 2);

	gst_element_release_request_pad (rtpbin, rtp_sink);
	/* we should only have our refs to the pads now */
	ASSERT_OBJECT_REFCOUNT (rtp_sink, "rtp_sink", 1);
	ASSERT_OBJECT_REFCOUNT (rtp_src, "rtp_src", 1);
	ASSERT_OBJECT_REFCOUNT (rtcp_src, "rtp_src", 2);

	/* the other pad should be gone now */
	fail_unless (gst_element_get_static_pad (rtpbin, "send_rtp_src_0") == NULL);

	/* internal session should still be there */
	g_signal_emit_by_name (rtpbin, "get-internal-session", 0, &session);
	fail_unless (session != NULL);
	g_object_unref (session);

	/* release the RTCP pad */
	gst_element_release_request_pad (rtpbin, rtcp_src);
	/* we should only have our refs to the pads now */
	ASSERT_OBJECT_REFCOUNT (rtp_sink, "rtp_sink", 1);
	ASSERT_OBJECT_REFCOUNT (rtp_src, "rtp_src", 1);
	ASSERT_OBJECT_REFCOUNT (rtcp_src, "rtp_src", 1);

	/* the session should be gone now */
	g_signal_emit_by_name (rtpbin, "get-internal-session", 0, &session);
	fail_unless (session == NULL);

	/* unref the request pad and the static pad */
	gst_object_unref (rtp_sink);
	gst_object_unref (rtp_src);
	gst_object_unref (rtcp_src);
	}

	gst_object_unref (rtpbin);
	}

	GST_END_TEST;

	typedef struct
	{
	guint16 seqnum;
	gboolean pad_added;
	GstPad *pad;
	GMutex lock;
	GCond cond;
	GstPad *sinkpad;
	GList *pads;
	GstCaps *caps;
	} CleanupData;

	static void
	init_data (CleanupData * data)
	{
	data->seqnum = 10;
	data->pad_added = FALSE;
	g_mutex_init (&data->lock);
	g_cond_init (&data->cond);
	data->pads = NULL;
	data->caps = NULL;
	}

	static void
	clean_data (CleanupData * data)
	{
	g_list_foreach (data->pads, (GFunc) gst_object_unref, NULL);
	g_list_free (data->pads);
	g_mutex_clear (&data->lock);
	g_cond_clear (&data->cond);
	if (data->caps)
	gst_caps_unref (data->caps);
	}

	static guint8 rtp_packet[] = { 0x80, 0x60, 0x94, 0xbc, 0x8f, 0x37, 0x4e, 0xb8,
	0x44, 0xa8, 0xf3, 0x7c, 0x06, 0x6a, 0x0c, 0xce,
	0x13, 0x25, 0x19, 0x69, 0x1f, 0x93, 0x25, 0x9d,
	0x2b, 0x82, 0x31, 0x3b, 0x36, 0xc1, 0x3c, 0x13
	};

	static GstFlowReturn
	chain_rtp_packet (GstPad * pad, CleanupData * data)
	{
	GstFlowReturn res;
	GstSegment segment;
	GstBuffer *buffer;
	GstMapInfo map;

	if (data->caps == NULL) {
	data->caps = gst_caps_from_string ("application/x-rtp,"
	"media=(string)audio, clock-rate=(int)44100, "
	"encoding-name=(string)L16, encoding-params=(string)1, channels=(int)1");
	data->seqnum = 0;
	}

	gst_pad_send_event (pad, gst_event_new_stream_start (GST_OBJECT_NAME (pad)));
	gst_pad_send_event (pad, gst_event_new_caps (data->caps));
	gst_segment_init (&segment, GST_FORMAT_TIME);
	gst_pad_send_event (pad, gst_event_new_segment (&segment));

	buffer = gst_buffer_new_and_alloc (sizeof (rtp_packet));
	gst_buffer_map (buffer, &map, GST_MAP_WRITE);
	memcpy (map.data, rtp_packet, sizeof (rtp_packet));

	map.data[2] = (data->seqnum >> 8) & 0xff;
	map.data[3] = data->seqnum & 0xff;

	data->seqnum++;
	gst_buffer_unmap (buffer, &map);

	res = gst_pad_chain (pad, buffer);

	return res;
	}

	static GstFlowReturn
	dummy_chain (GstPad * pad, GstObject * parent, GstBuffer * buffer)
	{
	gst_buffer_unref (buffer);

	return GST_FLOW_OK;
	}

	static GstStaticPadTemplate sink_factory = GST_STATIC_PAD_TEMPLATE ("sink",
	GST_PAD_SINK,
	GST_PAD_ALWAYS,
	GST_STATIC_CAPS ("application/x-rtp"));


	static GstPad *
	make_sinkpad (CleanupData * data)
	{
	GstPad *pad;

	pad = gst_pad_new_from_static_template (&sink_factory, "sink");

	gst_pad_set_chain_function (pad, dummy_chain);
	gst_pad_set_active (pad, TRUE);

	data->pads = g_list_prepend (data->pads, pad);

	return pad;
	}

	static void
	pad_added_cb (GstElement * rtpbin, GstPad * pad, CleanupData * data)
	{
	GstPad *sinkpad;

	GST_DEBUG ("pad added %s:%s\n", GST_DEBUG_PAD_NAME (pad));

	if (GST_PAD_IS_SINK (pad))
	return;

	fail_unless (data->pad_added == FALSE);

	sinkpad = make_sinkpad (data);
	fail_unless (gst_pad_link (pad, sinkpad) == GST_PAD_LINK_OK);

	g_mutex_lock (&data->lock);
	data->pad_added = TRUE;
	data->pad = pad;
	g_cond_signal (&data->cond);
	g_mutex_unlock (&data->lock);
	}

	static void
	pad_removed_cb (GstElement * rtpbin, GstPad * pad, CleanupData * data)
	{
	GST_DEBUG ("pad removed %s:%s\n", GST_DEBUG_PAD_NAME (pad));

	if (data->pad != pad)
	return;

	fail_unless (data->pad_added == TRUE);

	g_mutex_lock (&data->lock);
	data->pad_added = FALSE;
	g_cond_signal (&data->cond);
	g_mutex_unlock (&data->lock);
	}

	GST_START_TEST (test_cleanup_recv)
	{
	GstElement *rtpbin;
	GstPad *rtp_sink;
	CleanupData data;
	GstStateChangeReturn ret;
	GstFlowReturn res;
	gint count = 2;

	init_data (&data);

	rtpbin = gst_element_factory_make ("rtpbin", "rtpbin");

	g_signal_connect (rtpbin, "pad-added", (GCallback) pad_added_cb, &data);
	g_signal_connect (rtpbin, "pad-removed", (GCallback) pad_removed_cb, &data);

	ret = gst_element_set_state (rtpbin, GST_STATE_PLAYING);
	fail_unless (ret == GST_STATE_CHANGE_SUCCESS);

	while (count--) {
	/* request session 0 */
	rtp_sink = gst_element_get_request_pad (rtpbin, "recv_rtp_sink_0");
	fail_unless (rtp_sink != NULL);
	ASSERT_OBJECT_REFCOUNT (rtp_sink, "rtp_sink", 2);

	/* no sourcepads are created yet */
	fail_unless (rtpbin->numsinkpads == 1);
	fail_unless (rtpbin->numsrcpads == 0);

	res = chain_rtp_packet (rtp_sink, &data);
	GST_DEBUG ("res %d, %s\n", res, gst_flow_get_name (res));
	fail_unless (res == GST_FLOW_OK);

	res = chain_rtp_packet (rtp_sink, &data);
	GST_DEBUG ("res %d, %s\n", res, gst_flow_get_name (res));
	fail_unless (res == GST_FLOW_OK);

	/* we wait for the new pad to appear now */
	g_mutex_lock (&data.lock);
	while (!data.pad_added)
	g_cond_wait (&data.cond, &data.lock);
	g_mutex_unlock (&data.lock);

	/* sourcepad created now */
	fail_unless (rtpbin->numsinkpads == 1);
	fail_unless (rtpbin->numsrcpads == 1);

	/* remove the session */
	gst_element_release_request_pad (rtpbin, rtp_sink);
	gst_object_unref (rtp_sink);

	/* pad should be gone now */
	g_mutex_lock (&data.lock);
	while (data.pad_added)
	g_cond_wait (&data.cond, &data.lock);
	g_mutex_unlock (&data.lock);

	/* nothing left anymore now */
	fail_unless (rtpbin->numsinkpads == 0);
	fail_unless (rtpbin->numsrcpads == 0);
	}

	ret = gst_element_set_state (rtpbin, GST_STATE_NULL);
	fail_unless (ret == GST_STATE_CHANGE_SUCCESS);

	gst_object_unref (rtpbin);

	clean_data (&data);
	}

	GST_END_TEST;

	GST_START_TEST (test_cleanup_recv2)
	{
	GstElement *rtpbin;
	GstPad *rtp_sink;
	CleanupData data;
	GstStateChangeReturn ret;
	GstFlowReturn res;
	gint count = 2;

	init_data (&data);

	rtpbin = gst_element_factory_make ("rtpbin", "rtpbin");

	g_signal_connect (rtpbin, "pad-added", (GCallback) pad_added_cb, &data);
	g_signal_connect (rtpbin, "pad-removed", (GCallback) pad_removed_cb, &data);

	ret = gst_element_set_state (rtpbin, GST_STATE_PLAYING);
	fail_unless (ret == GST_STATE_CHANGE_SUCCESS);

	/* request session 0 */
	rtp_sink = gst_element_get_request_pad (rtpbin, "recv_rtp_sink_0");
	fail_unless (rtp_sink != NULL);
	ASSERT_OBJECT_REFCOUNT (rtp_sink, "rtp_sink", 2);

	while (count--) {
	/* no sourcepads are created yet */
	fail_unless (rtpbin->numsinkpads == 1);
	fail_unless (rtpbin->numsrcpads == 0);

	res = chain_rtp_packet (rtp_sink, &data);
	GST_DEBUG ("res %d, %s\n", res, gst_flow_get_name (res));
	fail_unless (res == GST_FLOW_OK);

	res = chain_rtp_packet (rtp_sink, &data);
	GST_DEBUG ("res %d, %s\n", res, gst_flow_get_name (res));
	fail_unless (res == GST_FLOW_OK);

	/* we wait for the new pad to appear now */
	g_mutex_lock (&data.lock);
	while (!data.pad_added)
	g_cond_wait (&data.cond, &data.lock);
	g_mutex_unlock (&data.lock);

	/* sourcepad created now */
	fail_unless (rtpbin->numsinkpads == 1);
	fail_unless (rtpbin->numsrcpads == 1);

	/* change state */
	ret = gst_element_set_state (rtpbin, GST_STATE_NULL);
	fail_unless (ret == GST_STATE_CHANGE_SUCCESS);

	/* pad should be gone now */
	g_mutex_lock (&data.lock);
	while (data.pad_added)
	g_cond_wait (&data.cond, &data.lock);
	g_mutex_unlock (&data.lock);

	/* back to playing for the next round */
	ret = gst_element_set_state (rtpbin, GST_STATE_PLAYING);
	fail_unless (ret == GST_STATE_CHANGE_SUCCESS);
	}

	/* remove the session */
	gst_element_release_request_pad (rtpbin, rtp_sink);
	gst_object_unref (rtp_sink);

	/* nothing left anymore now */
	fail_unless (rtpbin->numsinkpads == 0);
	fail_unless (rtpbin->numsrcpads == 0);

	ret = gst_element_set_state (rtpbin, GST_STATE_NULL);
	fail_unless (ret == GST_STATE_CHANGE_SUCCESS);

	gst_object_unref (rtpbin);

	clean_data (&data);
	}

	GST_END_TEST;

	GST_START_TEST (test_request_pad_by_template_name)
	{
	GstElement *rtpbin;
	GstPad rtp_sink1, rtp_sink2, *rtp_sink3;

	rtpbin = gst_element_factory_make ("rtpbin", "rtpbin");
	rtp_sink1 = gst_element_get_request_pad (rtpbin, "recv_rtp_sink_%u");
	fail_unless (rtp_sink1 != NULL);
	fail_unless_equals_string (GST_PAD_NAME (rtp_sink1), "recv_rtp_sink_0");
	ASSERT_OBJECT_REFCOUNT (rtp_sink1, "rtp_sink1", 2);

	rtp_sink2 = gst_element_get_request_pad (rtpbin, "recv_rtp_sink_%u");
	fail_unless (rtp_sink2 != NULL);
	fail_unless_equals_string (GST_PAD_NAME (rtp_sink2), "recv_rtp_sink_1");
	ASSERT_OBJECT_REFCOUNT (rtp_sink2, "rtp_sink2", 2);

	rtp_sink3 = gst_element_get_request_pad (rtpbin, "recv_rtp_sink_%u");
	fail_unless (rtp_sink3 != NULL);
	fail_unless_equals_string (GST_PAD_NAME (rtp_sink3), "recv_rtp_sink_2");
	ASSERT_OBJECT_REFCOUNT (rtp_sink3, "rtp_sink3", 2);


	gst_element_release_request_pad (rtpbin, rtp_sink2);
	gst_element_release_request_pad (rtpbin, rtp_sink1);
	gst_element_release_request_pad (rtpbin, rtp_sink3);
	ASSERT_OBJECT_REFCOUNT (rtp_sink3, "rtp_sink3", 1);
	ASSERT_OBJECT_REFCOUNT (rtp_sink2, "rtp_sink2", 1);
	ASSERT_OBJECT_REFCOUNT (rtp_sink1, "rtp_sink", 1);
	gst_object_unref (rtp_sink1);
	gst_object_unref (rtp_sink2);
	gst_object_unref (rtp_sink3);

	gst_object_unref (rtpbin);
	}

	GST_END_TEST;

	static GstElement *
	encoder_cb (GstElement * rtpbin, guint sessid, GstElement * bin)
	{
	GstPad srcpad, sinkpad;

	fail_unless (sessid == 2);

	GST_DEBUG ("making encoder");
	sinkpad = gst_ghost_pad_new_no_target ("rtp_sink_2", GST_PAD_SINK);
	srcpad = gst_ghost_pad_new_no_target ("rtp_src_2", GST_PAD_SRC);

	gst_element_add_pad (bin, sinkpad);
	gst_element_add_pad (bin, srcpad);

	return gst_object_ref (bin);
	}

	static GstElement *
	encoder_cb2 (GstElement * rtpbin, guint sessid, GstElement * bin)
	{
	GstPad srcpad, sinkpad;

	fail_unless (sessid == 3);

	GST_DEBUG ("making encoder");
	sinkpad = gst_ghost_pad_new_no_target ("rtp_sink_3", GST_PAD_SINK);
	srcpad = gst_ghost_pad_new_no_target ("rtp_src_3", GST_PAD_SRC);

	gst_element_add_pad (bin, sinkpad);
	gst_element_add_pad (bin, srcpad);

	return gst_object_ref (bin);
	}

	GST_START_TEST (test_encoder)
	{
	GstElement rtpbin, bin;
	GstPad rtp_sink1, rtp_sink2;
	gulong id;

	bin = gst_bin_new ("rtpenc");

	rtpbin = gst_element_factory_make ("rtpbin", "rtpbin");

	id = g_signal_connect (rtpbin, "request-rtp-encoder", (GCallback) encoder_cb,
	bin);

	rtp_sink1 = gst_element_get_request_pad (rtpbin, "send_rtp_sink_2");
	fail_unless (rtp_sink1 != NULL);
	fail_unless_equals_string (GST_PAD_NAME (rtp_sink1), "send_rtp_sink_2");
	ASSERT_OBJECT_REFCOUNT (rtp_sink1, "rtp_sink1", 2);

	g_signal_handler_disconnect (rtpbin, id);

	id = g_signal_connect (rtpbin, "request-rtp-encoder", (GCallback) encoder_cb2,
	bin);

	rtp_sink2 = gst_element_get_request_pad (rtpbin, "send_rtp_sink_3");
	fail_unless (rtp_sink2 != NULL);

	/* remove the session */
	gst_element_release_request_pad (rtpbin, rtp_sink1);
	gst_object_unref (rtp_sink1);

	gst_element_release_request_pad (rtpbin, rtp_sink2);
	gst_object_unref (rtp_sink2);

	/* nothing left anymore now */
	fail_unless (rtpbin->numsinkpads == 0);
	fail_unless (rtpbin->numsrcpads == 0);

	gst_object_unref (rtpbin);
	gst_object_unref (bin);
	}

	GST_END_TEST;

	static GstElement *
	decoder_cb (GstElement * rtpbin, guint sessid, gpointer user_data)
	{
	GstElement *bin;
	GstPad srcpad, sinkpad;

	bin = gst_bin_new (NULL);

	GST_DEBUG ("making decoder");
	sinkpad = gst_ghost_pad_new_no_target ("rtp_sink", GST_PAD_SINK);
	srcpad = gst_ghost_pad_new_no_target ("rtp_src", GST_PAD_SRC);

	gst_element_add_pad (bin, sinkpad);
	gst_element_add_pad (bin, srcpad);

	return bin;
	}

	GST_START_TEST (test_decoder)
	{
	GstElement *rtpbin;
	GstPad rtp_sink1, rtp_sink2;
	gulong id;


	rtpbin = gst_element_factory_make ("rtpbin", "rtpbin");

	id = g_signal_connect (rtpbin, "request-rtp-decoder", (GCallback) decoder_cb,
	NULL);

	rtp_sink1 = gst_element_get_request_pad (rtpbin, "recv_rtp_sink_2");
	fail_unless (rtp_sink1 != NULL);
	fail_unless_equals_string (GST_PAD_NAME (rtp_sink1), "recv_rtp_sink_2");
	ASSERT_OBJECT_REFCOUNT (rtp_sink1, "rtp_sink1", 2);

	rtp_sink2 = gst_element_get_request_pad (rtpbin, "recv_rtp_sink_3");
	fail_unless (rtp_sink2 != NULL);

	g_signal_handler_disconnect (rtpbin, id);

	/* remove the session */
	gst_element_release_request_pad (rtpbin, rtp_sink1);
	gst_object_unref (rtp_sink1);

	gst_element_release_request_pad (rtpbin, rtp_sink2);
	gst_object_unref (rtp_sink2);

	/* nothing left anymore now */
	fail_unless (rtpbin->numsinkpads == 0);
	fail_unless (rtpbin->numsrcpads == 0);

	gst_object_unref (rtpbin);
	}

	GST_END_TEST;

	static GstElement *
	aux_sender_cb (GstElement * rtpbin, guint sessid, gpointer user_data)
	{
	GstElement *bin;
	GstPad srcpad, sinkpad;

	bin = gst_bin_new (NULL);

	GST_DEBUG ("making AUX sender");
	sinkpad = gst_ghost_pad_new_no_target ("sink_2", GST_PAD_SINK);
	gst_element_add_pad (bin, sinkpad);

	srcpad = gst_ghost_pad_new_no_target ("src_2", GST_PAD_SRC);
	gst_element_add_pad (bin, srcpad);
	srcpad = gst_ghost_pad_new_no_target ("src_1", GST_PAD_SRC);
	gst_element_add_pad (bin, srcpad);
	srcpad = gst_ghost_pad_new_no_target ("src_3", GST_PAD_SRC);
	gst_element_add_pad (bin, srcpad);

	return bin;
	}

	GST_START_TEST (test_aux_sender)
	{
	GstElement *rtpbin;
	GstPad rtp_sink1, rtp_src, *rtcp_src;
	gulong id;

	rtpbin = gst_element_factory_make ("rtpbin", "rtpbin");

	id = g_signal_connect (rtpbin, "request-aux-sender",
	(GCallback) aux_sender_cb, NULL);

	rtp_sink1 = gst_element_get_request_pad (rtpbin, "send_rtp_sink_2");
	fail_unless (rtp_sink1 != NULL);
	fail_unless_equals_string (GST_PAD_NAME (rtp_sink1), "send_rtp_sink_2");
	ASSERT_OBJECT_REFCOUNT (rtp_sink1, "rtp_sink1", 2);

	g_signal_handler_disconnect (rtpbin, id);

	rtp_src = gst_element_get_static_pad (rtpbin, "send_rtp_src_2");
	fail_unless (rtp_src != NULL);
	gst_object_unref (rtp_src);

	rtp_src = gst_element_get_static_pad (rtpbin, "send_rtp_src_1");
	fail_unless (rtp_src != NULL);
	gst_object_unref (rtp_src);

	rtcp_src = gst_element_get_request_pad (rtpbin, "send_rtcp_src_1");
	fail_unless (rtcp_src != NULL);
	gst_element_release_request_pad (rtpbin, rtcp_src);
	gst_object_unref (rtcp_src);

	rtp_src = gst_element_get_static_pad (rtpbin, "send_rtp_src_3");
	fail_unless (rtp_src != NULL);
	gst_object_unref (rtp_src);

	/* remove the session */
	gst_element_release_request_pad (rtpbin, rtp_sink1);
	gst_object_unref (rtp_sink1);

	gst_object_unref (rtpbin);
	}

	GST_END_TEST;

	static GstElement *
	aux_receiver_cb (GstElement * rtpbin, guint sessid, gpointer user_data)
	{
	GstElement *bin;
	GstPad srcpad, sinkpad;

	bin = gst_bin_new (NULL);

	GST_DEBUG ("making AUX receiver");
	srcpad = gst_ghost_pad_new_no_target ("src_2", GST_PAD_SRC);
	gst_element_add_pad (bin, srcpad);

	sinkpad = gst_ghost_pad_new_no_target ("sink_2", GST_PAD_SINK);
	gst_element_add_pad (bin, sinkpad);
	sinkpad = gst_ghost_pad_new_no_target ("sink_1", GST_PAD_SINK);
	gst_element_add_pad (bin, sinkpad);
	sinkpad = gst_ghost_pad_new_no_target ("sink_3", GST_PAD_SINK);
	gst_element_add_pad (bin, sinkpad);

	return bin;
	}

	GST_START_TEST (test_aux_receiver)
	{
	GstElement *rtpbin;
	GstPad rtp_sink1, rtp_sink2, *rtcp_sink;
	gulong id;

	rtpbin = gst_element_factory_make ("rtpbin", "rtpbin");

	id = g_signal_connect (rtpbin, "request-aux-receiver",
	(GCallback) aux_receiver_cb, NULL);

	rtp_sink1 = gst_element_get_request_pad (rtpbin, "recv_rtp_sink_2");
	fail_unless (rtp_sink1 != NULL);

	rtp_sink2 = gst_element_get_request_pad (rtpbin, "recv_rtp_sink_1");
	fail_unless (rtp_sink2 != NULL);

	g_signal_handler_disconnect (rtpbin, id);

	rtcp_sink = gst_element_get_request_pad (rtpbin, "recv_rtcp_sink_1");
	fail_unless (rtcp_sink != NULL);
	gst_element_release_request_pad (rtpbin, rtcp_sink);
	gst_object_unref (rtcp_sink);

	/* remove the session */
	gst_element_release_request_pad (rtpbin, rtp_sink1);
	gst_object_unref (rtp_sink1);
	gst_element_release_request_pad (rtpbin, rtp_sink2);
	gst_object_unref (rtp_sink2);

	gst_object_unref (rtpbin);
	}

	GST_END_TEST;

	static Suite *
	rtpbin_suite (void)
	{
	Suite *s = suite_create ("rtpbin");
	TCase *tc_chain = tcase_create ("general");

	suite_add_tcase (s, tc_chain);
	tcase_add_test (tc_chain, test_pads);
	tcase_add_test (tc_chain, test_cleanup_send);
	tcase_add_test (tc_chain, test_cleanup_recv);
	tcase_add_test (tc_chain, test_cleanup_recv2);
	tcase_add_test (tc_chain, test_request_pad_by_template_name);
	tcase_add_test (tc_chain, test_encoder);
	tcase_add_test (tc_chain, test_decoder);
	tcase_add_test (tc_chain, test_aux_sender);
	tcase_add_test (tc_chain, test_aux_receiver);

	return s;
	}

	GST_CHECK_MAIN (rtpbin);