[gst-devel] Two Audio Streams In One Pipeline

[Marcelo de Sá Mendoza]

Hi, Stefan!

Thanks for you reply. So here is the pipe with two streams that dont work
together:

gst-launch -v udpsrc port=5000
caps="application/x-rtp,media=audio,payload=3,clock-rate=8000,channels=1,encoding-name=GSM"
! .recv_rtp_sink_0 gstrtpbin ! rtpgsmdepay ! gsmdec ! audioconvert !
pulsesink gstrtpbin name=rtpbin autoaudiosrc ! gsmenc ! rtpgsmpay !
rtpbin.send_rtp_sink_0 rtpbin.send_rtp_src_0 ! identity ! udpsink port=5000
host=127.0.0.1

I do not get any error when running that pipe! But I cant hear anything when
running it. However, when I separate the streams, like below, and run then
on different terminals, that works(but that is like two pipes and I dont
want two pipes). The audio is captured and sent and I hear myself as I talk.

receiver stream:
gst-launch -v udpsrc port=5000
caps="application/x-rtp,media=audio,payload=3,clock-rate=8000,channels=1,encoding-name=GSM"
! .recv_rtp_sink_0 gstrtpbin ! rtpgsmdepay ! gsmdec ! audioconvert !
pulsesink

sender stream:
gst-launch -v gstrtpbin name=rtpbin autoaudiosrc ! gsmenc ! rtpgsmpay !
rtpbin.send_rtp_sink_0 rtpbin.send_rtp_src_0 ! identity ! udpsink port=5000
host=127.0.0.1

As I said before, I do not get any error when running those streams in one
pipeline, but I cant hear any audio sent through udp...


2009/10/30 Rajesh Marathe <rmarathe at i-rode.com>

> Hi Stefan,
>
> Sorry to diverge slightly from the topic, but, I do have a query on two
> streams. I tried doing this using gstreamer:
> - Create two different pipelines for two streams. (Create different
> elements for each pipeline but these elements refer to same hardware
> units).
> - Play stream1 while stream2 is in PAUSED state.
> - After few seconds, PAUSE stream1 and move stream2 to PLAY state.
> -
> I notice that stream1 plays and pauses but stream2 does not play actually.
>
> Will the above scenario work and if yes, do you see anything that needs
> done apart from the above ?
>
> thanks and regards,
> Rajesh Marathe.
>
> On 10/30/2009 12:58 AM, Stefan Kost wrote:
> > Marcelo de Sá Mendoza schrieb:
> >
> >> Hi
> >>
> >> Is possible to have two streams( 1 sender 1 receiver ) or more, of audio
> >> in one pipeline only? I'm trying to do that and I getting frustrated. I
> >> made two pipelines for each stream and worked cool, I hear the audio
> >> received from the host and the host hear what I talk. The thing is that
> >> I need to do that in ONE pipeline, but I can't. I know that two streams
> >> are possible in one pipeline, cause when I do the test below, it works:
> >>
> >> gst-launch -v filesrc location=notice.html ! identity ! udpsink
> >> host=127.0.0.1 port=6000 udpsrc port=6000 ! identity ! filesink
> >> location=notice2.html
> >>
> >> but when I change to pulsesrc/pulsesink that doesnt work. Works only in
> >> diferent pipelines. There's something else that I need to do?
> >>
> > You can have as many streams in a pipe as you want. The above example is
> quite
> > uncomplete though. You probably want to use rtp for sending audio over
> the
> > network. Also if something does not work, tell us what errors you get.
> Otherwise
> > we can't help.
> >
> > Stefan
> >
> >
> >> Thanks for the atention.
> >>
> >>
> >>
> >> ------------------------------------------------------------------------
> >>
> >>
> ------------------------------------------------------------------------------
> >> Come build with us! The BlackBerry(R) Developer Conference in SF, CA
> >> is the only developer event you need to attend this year. Jumpstart your
> >> developing skills, take BlackBerry mobile applications to market and
> stay
> >> ahead of the curve. Join us from November 9 - 12, 2009. Register now!
> >> http://p.sf.net/sfu/devconference
> >>
> >>
> >> ------------------------------------------------------------------------
> >>
> >> _______________________________________________
> >> gstreamer-devel mailing list
> >> gstreamer-devel at lists.sourceforge.net
> >> https://lists.sourceforge.net/lists/listinfo/gstreamer-devel
> >>
> >
> >
> ------------------------------------------------------------------------------
> > Come build with us! The BlackBerry(R) Developer Conference in SF, CA
> > is the only developer event you need to attend this year. Jumpstart your
> > developing skills, take BlackBerry mobile applications to market and stay
> > ahead of the curve. Join us from November 9 - 12, 2009. Register now!
> > http://p.sf.net/sfu/devconference
> > _______________________________________________
> > gstreamer-devel mailing list
> > gstreamer-devel at lists.sourceforge.net
> > https://lists.sourceforge.net/lists/listinfo/gstreamer-devel
> >
> >
>
>
>
> ------------------------------------------------------------------------------
> Come build with us! The BlackBerry(R) Developer Conference in SF, CA
> is the only developer event you need to attend this year. Jumpstart your
> developing skills, take BlackBerry mobile applications to market and stay
> ahead of the curve. Join us from November 9 - 12, 2009. Register now!
> http://p.sf.net/sfu/devconference
> _______________________________________________
> gstreamer-devel mailing list
> gstreamer-devel at lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/gstreamer-devel
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.freedesktop.org/archives/gstreamer-devel/attachments/20091030/d354f6c8/attachment.htm>