receiving multiple rtp audi streams

[Mikkel Pihl]

Dear all,

I am new to gstreamer and it is a bit overwhelming. I have a project i
would like some help with.

I have two devices each sending an rtp audio stream using the following
pipelines

gst-launch-1.0 -v rtpbin name=rtpbin alsasrc !
audio/x-raw,format=S32LE,rate=48000,width=32,depth=32,channels=2 !
audioconvert ! rtpL24pay ! rtpbin.send_rtp_sink_0    rtpbin.send_rtp_src_0
! udpsink host=192.168.0.1 port=5002 rtpbin.send_rtcp_src_0 ! udpsink
host=192.168.0.1 port=5003 sync=false async=false udpsrc port=5007 !
rtpbin.recv_rtcp_sink_0

gst-launch-1.0 -v rtpbin name=rtpbin alsasrc !
audio/x-raw,format=S32LE,rate=48000,width=32,depth=32,channels=2 !
audioconvert ! rtpL24pay ! rtpbin.send_rtp_sink_0    rtpbin.send_rtp_src_0
! udpsink host=192.168.0.1 port=5008 rtpbin.send_rtcp_src_0 ! udpsink
host=192.168.0.1 port=5009 sync=false async=false udpsrc port=5013 !
rtpbin.recv_rtcp_sink_0

I would like to receive the two audio streams on a third device. I can
receive and play one stream at a time but i am unsure how to receive and
play both. I naively tried the following which is not working and likely
does not make much sense.

gst-launch-1.0 -v rtpbin name=rtpbin udpsrc
caps="application/x-rtp,media=(string)audio,clock-rate=(int)48000,encoding-name=(string)L24,encoding-params=(string)2,channels=(int)2,
payload=(int)96" port=5002 ! rtpbin.recv_rtp_sink_0 rtpbin. ! rtpL24depay !
audioconvert ! audiomixer name=audiomix ! alsasink udpsrc port=5003 !
rtpbin.recv_rtcp_sink_0 rtpbin.send_rtcp_src_0 ! udpsink host=192.168.0.2
port=5007 sync=false async=false udpsrc
caps="application/x-rtp,media=(string)audio,clock-rate=(int)48000,encoding-name=(string)L24,encoding-params=(string)2,channels=(int)2,
payload=(int)96" port=5008 ! rtpbin.recv_rtp_sink_1 rtpbin. ! rtpL24depay !
audioconvert ! audiomix. udpsrc port=5009 ! rtpbin.recv_rtcp_sink_1
rtpbin.send_rtcp_src_1 ! udpsink host=192.168.0.3 port=5013 sync=false
async=false

I will be very grateful for any hints.

All the best,
Mikkel Pihl
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