vlc + gstreamer to read aes67 from dante

Sebastian Dröge sebastian at centricular.com
Tue Apr 20 16:06:19 UTC 2021

On Tue, 2021-04-20 at 09:28 -0500, macfplus via gstreamer-devel wrote:
> Hello :)
> I have a Dante AXc card in a toolbox, generating many AES67 streams
> At the moment, I get these streams with aes67 tools from sound4 =>
> it's ok
> But, I need also to get these streams in a ubuntu machine.
> Then, I installed gstreamer tools.
> I created sdp file to  link to 1 aes67 stream.
> But when I run the sdp file in vlc, it can't connect and read the
> stream.
> here is my sdp file :
> v=0
> o=Node 1 1 IN IP4
> s=DoleFM
> t=0 0
> a=type:multicast
> c=IN IP4
> m=audio 5004 RTP/AVP 96
> a=rtpmap:96 L2/48000/2
> Is there anything I forgot?

AES67/Dante/Ravenna usually also contain information about packet sizes
and most importantly clock synchronization (according to RFC7273) in
the SDP. Check the relevant specs :)

I don't think VLC supports any of that.

Also you probably mean L24 there instead of L2.

How is this related to GStreamer though?

Sebastian Dröge, Centricular Ltd · https://www.centricular.com

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