bi-directional Connection establishment request

[Sebastian Dröge]

On Fr, 2013-12-20 at 12:39 +0100, fereydoon vahidi wrote:
> i have the following two pipelines, each of which , is supposed to play the
> role of sender and receiver, on two different machines with two different
> IPs, to facilitate a bi-directional speech over a Wi-Fi network.
> 
> *RECEIVER:*
> gst-launch-1.0 udpsrc port=5000 ! "application/x-rtp,media=(string)audio,
> clock-rate=(int)44100, encoding-name=(string)L16, channels=(int)2,
> payload=(int)96" ! rtpL16depay ! audioconvert ! alsasink
> 
> *SENDER:*
> gst-launch-1.0 -v  alsasrc ! audioconvert !
> audio/x-raw,channels=2,depth=16,width=16,rate=44100 ! rtpL16pay ! udpsink
> host=192.168.1.123 port=5000
> 
> This works if i execute both pipes on both machines manually( considering
> the correct IP address).
> 
> But in my scenario one of the machines is just hanging out and doing
> nothing(machine A) . And the other machine( machine B) would be trying to
> call machine A ( granted both machine IPs are known to one another).
> 
> Would it be doable in Gstrreamer to notify machine A that machine B is
> trying to call it ( establish a UDP socket connection) having a known IP?

There's no such signalling mechanism implemented in GStreamer and this
is usually done in a different layer of the application and communicated
via a different network protocol.

What you could do however is to just listen on the receiver all the
time, but that's probably not what you want here.

-- 
Sebastian Dröge, Centricular Ltd - http://www.centricular.com
Expertise, Straight from the Source
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