[gst-devel] How to specify type of sink or src pad in gstrtpbin
Manish Rana
manish.rana at gmail.com
Fri Jun 27 14:52:35 CEST 2008
Hi Thomas,
Even though it is too late to suggest anything but to help others, here are
some things:
1. On UDPSRC u need to set the caps as a property.
2. In the code u request a pad then link it before u request another
3. You need not to request source pad, you will get a call back in that you
check the direction of PAD and link it to the next bin you want to link.
Please correct me if i am wrong.
As well apologies for replying late, but was stuck up with some things.
Thanks and Regards
Manish
On Fri, Jun 27, 2008 at 5:34 AM, Thomas Winkler <wi-tom at gmx.de> wrote:
> Thanks to all who helped to solve my problem.
>
> Now I have a Receiver and a Sender which works fine.
>
> I've attached my sample-application for Sender and Receiver.
>
> PS: My problem was, that I've forgotten to create a capsfilter on my
> Server-Side and I've exchanged the pad_requests
>
> From:
> ps->send_rtp_src0 = gst_element_get_static_pad(rtpbin, "send_rtp_src_0");
> ps->send_rtp_sink0 = gst_element_get_request_pad(rtpbin,
> "send_rtp_sink_0");
>
> To:
> ps->send_rtp_sink0 = gst_element_get_request_pad(rtpbin,
> "send_rtp_sink_0");
> ps->send_rtp_src0 = gst_element_get_static_pad(rtpbin, "send_rtp_src_0");
>
> because in the Reference it's described that the "send_rtp_src_%d" pad is
> automatically created if a pad_request to "send_rtp_sink_%d" is called.
>
> Thanks to all people who helped.
>
> For all people who are looking for a rtp pipeline for gst-launch, I've
> attached a gstrtp_pipe file which includes sender and receiver
> pipeline-command.
>
> Greetings,
> Thomas
>
> > -----Ursprüngliche Nachricht-----
> > Von: gstreamer-devel-bounces at lists.sourceforge.net [mailto:gstreamer-
> > devel-bounces at lists.sourceforge.net] Im Auftrag von Thomas Winkler
> > Gesendet: Freitag, 27. Juni 2008 10:46
> > An: gstreamer-devel at lists.sourceforge.net
> > Betreff: Re: [gst-devel] How to specify type of sink or src pad in
> > gstrtpbin
> >
> > Hi,
> > I've added my little (dirty) test-application.
> > Sender: Sender.cpp, CRtpSender.cpp, CRtpSender.h
> > Receiver: Receiver.cpp, CRtpReceiver.cpp, CRtpReceiver.h
> >
> > Here's a sample of my Signalimplementation for my Sender:
> >
> > Signal connect:
> > g_signal_connect (m_gstrtpbin, "pad-added", G_CALLBACK (cb_new_pad),
> > NULL);
> >
> > Method:
> > void CRtpSender::cb_new_pad(GstElement* element, GstPad* pad, gpointer
> > data)
> > {
> > gchar* name;
> >
> > name = gst_pad_get_name(pad);
> > g_print("A new pad %s was created\n", name);
> > g_free(name);
> >
> > GstPad* rtpudpsinkSrc = gst_element_get_static_pad(m_udpsink_rtp,
> > "src");
> > gst_pad_link(rtpudpsinkSrc, pad);
> > }
> >
> >
> > But I never get this signal called (have a look into the source)
> > I don't know what's wrong in my code...
> >
> > Greetings,
> > Thomas
> >
> >
> > > -----Ursprüngliche Nachricht-----
> > > Von: gstreamer-devel-bounces at lists.sourceforge.net [mailto:gstreamer-
> > > devel-bounces at lists.sourceforge.net] Im Auftrag von Sreejesh
> > > Gesendet: Freitag, 27. Juni 2008 07:37
> > > An: gstreamer-devel at lists.sourceforge.net
> > > Betreff: Re: [gst-devel] How to specify type of sink or src pad in
> > > gstrtpbin
> > >
> > > Hi Thomas,
> > >
> > > You need to connect "pad-added" signal to "gstrtpbin".
> > > Inside the pad-added signal handler, you need to link this pad to
> > > "depayloader" pad. As you said,
> > "recv_rtp_src_(id)_(ssrc)_(payload_type)"
> > > is
> > > a dynamic pad.
> > >
> > > You may also set proper "caps" for "udpsrc".
> > >
> > > Regards
> > > Sreejesh R B
> > > Sr. Project Lead.
> > > Multitech Software Systems India Pvt. Ltd.
> > > Bangalore, India
> > >
> > >
> > > -----Original Message-----
> > > From: gstreamer-devel-bounces at lists.sourceforge.net
> > > [mailto:gstreamer-devel-bounces at lists.sourceforge.net] On Behalf Of
> > > wi-tom at gmx.de
> > > Sent: Friday, June 27, 2008 6:02 AM
> > > To: gstreamer-devel at lists.sourceforge.net
> > > Subject: Re: [gst-devel] How to specify type of sink or src pad in
> > > gstrtpbin
> > >
> > > Yes I had.
> > > But after I've startet my Receiver and Sender, this Signal was never
> > sent.
> > >
> > > I will send my Sender and Receiver SampleCode as soon as I'm at work
> > > tomorrow.
> > >
> > > greetings,
> > > Thomas
> > >
> > > -------- Original-Nachricht --------
> > > > Datum: Thu, 26 Jun 2008 16:40:46 -0400
> > > > Von: Tristan Matthews <tristan at sat.qc.ca>
> > > > An: Thomas Winkler <wi-tom at gmx.de>
> > > > CC: "gstreamer-devel at lists.sourceforge.net"
> > > <gstreamer-devel at lists.sourceforge.net>
> > > > Betreff: Re: [gst-devel] How to specify type of sink or src pad in
> > > gstrtpbin
> > >
> > > > Hi Thomas,
> > > >
> > > > Thomas Winkler wrote:
> > > > >
> > > > > But what signal is the right signal for my pad-creation?
> > > > >
> > > > > gstrtbin has only: "request-pt-map", "on-new-ssrc",
> > > > > "on-ssrc-collision", "on-ssrc-validated", "on-ssrc-active",
> > > > > "on-ssrc-sdes", "on-bye-ssrc", "on-bye-timeout",
> > > > "on-timeout"
> > > > >
> > > >
> > > > Did you try "pad-added"? This is usually the signal to watch for when
> > > > pads are created dynamically.
> > > >
> > > >
> > > > Best,
> > > >
> > > > Tristan
> > >
> > > --
> > > Psssst! Schon vom neuen GMX MultiMessenger gehört?
> > > Der kann`s mit allen: http://www.gmx.net/de/go/multimessenger
> > >
> > >
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