Can you use the pipelines built on these codes with gst-launch command without problem? I'm trying the same thing and there is a delay in my streaming. I'm using these pipelines: Server: #!/bin/sh # change this to send the RTP data and RTCP to another host DEST=127.0.0.1 # tuning parameters to make the sender send the streams out of sync. Can be used # ot test the client RTCP synchronisation. #VOFFSET=900000000 VOFFSET=0 AOFFSET=0 # H264 encode from the source #VELEM="videotestsrc is-live=1 pattern=1" VELEM="v4l2src device=/dev/video0" #VCAPS="video/x-raw-yuv,width=<div id=":1ii">352,height=288,framerate=15/1" VCAPS="ffmpegcolorspace" VSOURCE="$VELEM ! $VCAPS" #VENC="ffenc_h263p ! rtph263ppay" VENC=" timeoverlay ! x264enc ! rtph264pay " VRTPSINK="udpsink port=5000 host=$DEST ts-offset=$VOFFSET name=vrtpsink" VRTCPSINK="udpsink port=5001 host=$DEST sync=false async=false name=vrtcpsink" VRTCPSRC="udpsrc port=5005 name=vrtpsrc" PIPELINE="gstrtpbin name=rtpbin $VSOURCE ! $VENC ! rtpbin.send_rtp_sink_2 rtpbin.send_rtp_src_2 ! $VRTPSINK rtpbin.send_rtcp_src_2 ! $VRTCPSINK $VRTCPSRC ! rtpbin.recv_rtcp_sink_2" echo $PIPELINE gst-launch -v $PIPELINE Client: </div>#!/bin/sh VIDEO_CAPS="application/x-rtp,<div id=":1ii">media=(string)video,clock-rate=(int)90000,encoding-name=(string)H264" DEST=127.0.0.1 LATENCY=100 gst-launch -v gstrtpbin name=rtpbin latency=$LATENCY \ udpsrc caps=$VIDEO_CAPS port=5000 ! rtpbin.recv_rtp_sink_0 \ rtpbin. ! rtph264depay ! h264parse ! ffdec_h264 ! autovideosink \ udpsrc port=5001 ! rtpbin.recv_rtcp_sink_0 \ rtpbin.send_rtcp_src_0 ! udpsink host=$DEST port=5005 sync=false async=false </div> <div class="gmail_quote"><blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;"> </blockquote></div>