Within the notify::caps callback function try print the caps as below.<br><br>caps = GST_PAD_CAPS (pad);<br>g_print ("Caps = %s\n, gst_caps_to_string (caps));<br><br>Refer the link below for more info:<br><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstPad.html#gst-pad-get-caps" target="_blank">http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstPad.html#gst-pad-get-caps</a><br> <br><div class="gmail_quote">On Sat, Dec 19, 2009 at 1:55 PM, Farah <span dir="ltr"><<a href="mailto:farahakhtar_24c@yahoo.com">farahakhtar_24c@yahoo.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"> <br> <br> Can you please tell how exactly you got those caps from a command line<br> shell? I'm new to gstreamer. Say, I can create a pipeline fine but dont<br> know how to access or modify RTP params like 'sprop-paramater-set' etc.<br> Also, can I find the 'rtph264pay' help or documentation somewhere?<br> <div class="im"><br> <br> <br> > I'm not sure if this will solve your issue but I'd been getting the caps<br> > from the udpsink linked to the payloader. However, some recent changes to<br> > gst-plugins-bad (in git) have made it so these caps are always null, and I<br> > haven't had the chance to diagnose the issue further. But at least with<br> > the<br> > last release, calling gst_pad_get_negotiated_caps on the udpsink's sink<br> > pad<br> > worked for me.<br> <br> For me, get_negociated_caps returns None when used inside my<br> application. It does return the correct caps when i do it using an<br> interactive shell.<br> <br> <br> </div>--<br> View this message in context: <a href="http://n4.nabble.com/Getting-the-complete-caps-from-rtph264pay-tp972686p975288.html" target="_blank">http://n4.nabble.com/Getting-the-complete-caps-from-rtph264pay-tp972686p975288.html</a><br> <div class="im">Sent from the GStreamer-devel mailing list archive at Nabble.com.<br> <br> ------------------------------------------------------------------------------<br> </div>This SF.Net email is sponsored by the Verizon Developer Community<br> Take advantage of Verizon's best-in-class app development support<br> A streamlined, 14 day to market process makes app distribution fast and easy<br> Join now and get one step closer to millions of Verizon customers<br> <a href="http://p.sf.net/sfu/verizon-dev2dev" target="_blank">http://p.sf.net/sfu/verizon-dev2dev</a><br> <div><div></div><div class="h5">_______________________________________________<br> gstreamer-devel mailing list<br> <a href="mailto:gstreamer-devel@lists.sourceforge.net">gstreamer-devel@lists.sourceforge.net</a><br> <a href="https://lists.sourceforge.net/lists/listinfo/gstreamer-devel" target="_blank">https://lists.sourceforge.net/lists/listinfo/gstreamer-devel</a><br> </div></div></blockquote></div><br>