Here are the sinks and sources of the gstrtpbin, each session has its own id. Also look at script file attached for example GObject +----GstObject +----GstElement +----GstBin +----GstRtpBin Implemented Interfaces: GstChildProxy Pad Templates: SINK template: 'recv_rtp_sink_%d' Availability: On request Has request_new_pad() function: gst_rtp_bin_request_new_pad Capabilities: application/x-rtp SINK template: 'recv_rtcp_sink_%d' Availability: On request Has request_new_pad() function: gst_rtp_bin_request_new_pad Capabilities: application/x-rtcp SINK template: 'send_rtp_sink_%d' Availability: On request Has request_new_pad() function: gst_rtp_bin_request_new_pad Capabilities: application/x-rtp SRC template: 'recv_rtp_src_%d_%d_%d' Availability: Sometimes Capabilities: application/x-rtp SRC template: 'send_rtcp_src_%d' Availability: On request Has request_new_pad() function: gst_rtp_bin_request_new_pad Capabilities: application/x-rtcp SRC template: 'send_rtp_src_%d' Availability: Sometimes Capabilities: application/x-rtp <div class="gmail_quote">On Mon, Jun 22, 2009 at 2:11 PM, Zelalem Sintayehu <<a href="mailto:zelalems@hotmail.com">zelalems@hotmail.com</a>> wrote: <blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"> <div> Hi Thabelo, thank you for your response. BTW, my problem is not on the source side. It is on the receiver side. You know when i see the file that i saved in it is very unsynchronized. Eventually I want to use my program to save streams that are comming from the network. So, I am only intersting on the recieving side. Anyway, I will try to use gstrtpbin if it solves the problem. BTW, how can i put the two differnet streams in teh bin? Thank you again. - Zelalem S. <hr>Date: Mon, 22 Jun 2009 12:14:41 +0200 From: <a href="mailto:thabelo@gmail.com" target="_blank">thabelo@gmail.com</a> To: <a href="mailto:gstreamer-devel@lists.sourceforge.net" target="_blank">gstreamer-devel@lists.sourceforge.net</a> Subject: Re: [gst-devel] How to syncronize audio and video<div><div></div><div class="h5"> Try using the "gstrtpbin" it works, checkout the documentation on the gstreamer site. eg Your source can be something like source -> encode -> payload -> gstrtpbin -> rtpsink(udp) <div>On Mon, Jun 22, 2009 at 9:45 AM, Zelalem Sintayehu <<a href="mailto:zelalems@hotmail.com" target="_blank">zelalems@hotmail.com</a>> wrote: <blockquote style="padding-left: 1ex;"> <div> Hi all, I wanted to save a networked stream in an avi file and I got a very unsynchronized file. The audio finishes almost 3 second ahead of the video. I even used the sync=true option for the filesink element, but the result is the same. So, I want to ask an advice on how to get a synchronized video file. The following is the source and destination commands that I used: Source commands: for the audio channel gst-launch-0.10 -v alsasrc ! queue ! audio/x-raw-int,rate=8000,channels=1,depth=8 ! audioconvert ! alawenc ! rtppcmapay ! queue ! udpsink port=5002 for the video channel; gst-launch v4l2src ! video/x-raw-rgb,width=320,height=240 ! queue ! videorate ! video/x-raw-rgb,rate=15/1 ! ffmpegcolorspace! ffenc_h263p ! rtph263ppay ! udpsink port=5000 Output command: gst-launch-0.10 -v avimux name=mux ! filesink location=videoandaudio.avi sync=true {udpsrc port=5000 caps="application/x-rtp,media=(string)video,clock-rate=(int)90000,encoding-name=(string)H263-1998" num-buffers=5000 ! queue ! rtph263pdepay ! 'video/x-h263,width=320,height=240,framerate=(fraction)25/1' ! queue} ! mux.video_0 {udpsrc port=5002 caps="application/x-rtp,media=(string)audio,payload=(int)96, rate=(int)8000, encoding-name=(string)PCMA" ! queue ! rtppcmadepay ! 'audio/x-alaw, rate=(int)8000, channels=(int)1' ! queue} ! mux.audio_0; Do you think the result will be different if I use a different file container (like mp4) instead of avi? Thank you. - Zelalem S. <hr>See all the ways you can stay connected <a href="http://www.microsoft.com/windows/windowslive/default.aspx" target="_blank">to friends and family</a></div> ------------------------------------------------------------------------------ Are you an open source citizen? Join us for the Open Source Bridge conference! Portland, OR, June 17-19. Two days of sessions, one day of unconference: $250. Need another reason to go? 24-hour hacker lounge. 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Need another reason to go? 24-hour hacker lounge. Register today! <a href="http://ad.doubleclick.net/clk;215844324;13503038;v?http://opensourcebridge.org" target="_blank">http://ad.doubleclick.net/clk;215844324;13503038;v?http://opensourcebridge.org</a> _______________________________________________ gstreamer-devel mailing list <a href="mailto:gstreamer-devel@lists.sourceforge.net">gstreamer-devel@lists.sourceforge.net</a> <a href="https://lists.sourceforge.net/lists/listinfo/gstreamer-devel" target="_blank">https://lists.sourceforge.net/lists/listinfo/gstreamer-devel</a> </blockquote></div>