How to use g_signal_connect to connect gstrtpbin with depayloader(in both case Audio+Video together)

arpi d reachtoarpi at
Sun Jul 31 21:15:20 PDT 2011

I am writing client code which receives audio+video.

When I am trying to connect rtpbin and depayloader how to know which session
is this?

Actually,I am writing the code in C and am trying to use g_signal_connect.
So that I can use
 g_signal_connect (rtpbin, "pad-added", G_CALLBACK (pad_added_cb),

 g_signal_connect (rtpbin, "pad-added", G_CALLBACK (pad_added_cb),

and the pad_added_cb handler is:

/* will be called when rtpbin has validated a payload that we can
depayload */static void

pad_added_cb (GstElement * rtpbin, GstPad * new_pad, GstElement * depay)
  GstPad *sinkpad;
  GstPadLinkReturn lres;

  g_print ("new payload on pad: %s\n", GST_PAD_NAME (new_pad));

  sinkpad = gst_element_get_static_pad (depay, "sink");
  g_assert (sinkpad);

  lres = gst_pad_link (new_pad, sinkpad);
  g_assert (lres == GST_PAD_LINK_OK);
  gst_object_unref (sinkpad);

my client pipeline is:

VIDEO_DEC="rtph264depay ! ffdec_h264"
AUDIO_DEC="rtpmp4gdepay ! faad"

VIDEO_SINK="ffmpegcolorspace ! autovideosink"


gst-launch -v gstrtpbin name=rtpbin                   \
    udpsrc caps=$VIDEO_CAPS port=5000 ! rtpbin.recv_rtp_sink_0         \
      rtpbin. ! $VIDEO_DEC ! $VIDEO_SINK                               \
    udpsrc port=5001 ! rtpbin.recv_rtcp_sink_0                         \
 rtpbin.send_rtcp_src_0 ! udpsink port=5005 host=$DEST sync=false
udpsrc caps=$AUDIO_CAPS port=5002 ! rtpbin.recv_rtp_sink_1              \
rtpbin. ! $AUDIO_DEC ! $AUDIO_SINK                                \
udpsrc port=5003 ! rtpbin.recv_rtcp_sink_1                              \
rtpbin.send_rtcp_src_1 ! udpsink port=5007 host=$DEST sync=false async=false

Same thing as above pipeline in C language I am writing.
Please reply.
If you know other way please do let  me know.
Thaks in advance.
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