gstrtpbin example code run not ok

[Peter Xu]

hi, all,

I am trying to encode some raw data with h264, and sent via network in 
rtp. I found some example pipelines here:
http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gst-plugins-good-plugins/html/gst-plugins-good-plugins-gstrtpbin.html

I used this code to establish a server(nearly the same as mentioned in 
the doc above, just change v4l2src to videotestsrc):
gst-launch gstrtpbin name=rtpbin \
     videotestsrc ! ffmpegcolorspace ! ffenc_h263 ! rtph263ppay ! 
rtpbin.send_rtp_sink_0 \
     rtpbin.send_rtp_src_0 ! udpsink port=5000                            \
     rtpbin.send_rtcp_src_0 ! udpsink port=5001 sync=false async=false    \
     udpsrc port=5005 ! rtpbin.recv_rtcp_sink_0                           \
     audiotestsrc ! amrnbenc ! rtpamrpay ! 
rtpbin.send_rtp_sink_1                   \
     rtpbin.send_rtp_src_1 ! udpsink port=5002                            \
     rtpbin.send_rtcp_src_1 ! udpsink port=5003 sync=false async=false    \
     udpsrc port=5007 ! rtpbin.recv_rtcp_sink_1

and use this to run the client:
gst-launch -v gstrtpbin 
name=rtpbin                                          \
     udpsrc 
caps="application/x-rtp,media=(string)video,clock-rate=(int)90000,encoding-name=(string)H263-1998" 
\
             port=5000 ! 
rtpbin.recv_rtp_sink_0                                \
         rtpbin. ! rtph263pdepay ! ffdec_h263 ! 
ximagesink                    \
      udpsrc port=5001 ! 
rtpbin.recv_rtcp_sink_0                               \
      rtpbin.send_rtcp_src_0 ! udpsink port=5005 sync=false 
async=false        \
     udpsrc 
caps="application/x-rtp,media=(string)audio,clock-rate=(int)8000,encoding-name=(string)AMR,encoding-params=(string)1,octet-align=(string)1" 
\
             port=5002 ! 
rtpbin.recv_rtp_sink_1                                \
         rtpbin. ! rtpamrdepay ! amrnbdec ! 
alsasink                           \
      udpsrc port=5003 ! 
rtpbin.recv_rtcp_sink_1                               \
      rtpbin.send_rtcp_src_1 ! udpsink port=5007 sync=false async=false

however, by first running the server, then running the client, I can't 
see a xwindow pop up (I think I should see that, meanwhile some kind of 
sine wave should be played in my audio) nor the sine wave sound. what I 
got after running the client are:

....
New clock: GstSystemClock
/GstPipeline:pipeline0/GstRtpBin:rtpbin.GstGhostPad:send_rtcp_src_1: 
caps = application/x-rtcp
/GstPipeline:pipeline0/GstRtpBin:rtpbin/GstRtpSession:rtpsession1.GstPad:send_rtcp_src: 
caps = application/x-rtcp
/GstPipeline:pipeline0/GstUDPSink:udpsink1.GstPad:sink: caps = 
application/x-rtcp
/GstPipeline:pipeline0/GstRtpBin:rtpbin.GstGhostPad:send_rtcp_src_1.GstProxyPad:proxypad5: 
caps = application/x-rtcp
/GstPipeline:pipeline0/GstRtpBin:rtpbin.GstGhostPad:send_rtcp_src_0: 
caps = application/x-rtcp
/GstPipeline:pipeline0/GstRtpBin:rtpbin/GstRtpSession:rtpsession0.GstPad:send_rtcp_src: 
caps = application/x-rtcp
/GstPipeline:pipeline0/GstUDPSink:udpsink0.GstPad:sink: caps = 
application/x-rtcp
/GstPipeline:pipeline0/GstRtpBin:rtpbin.GstGhostPad:send_rtcp_src_0.GstProxyPad:proxypad2: 
caps = application/x-rtcp

Does anyone know what's the problem here?

Peter