[Spce-user] Does rtpengine support trickle ICE?

[Anthony Alba]

1. "With a matching content type, the SDP fragment is used to update
rtpengine's list of ICE candidates. "
What is meant by "matching content type" here?

2. Is this what we should send to rtpengine: as "fragment" SDP, i.e,

a=ice-pwd:asd88fgpdd777uzjYhagZg
...
a=end-of-candidates

INFO sip:alice at example.com SIP/2.0
      ...
      Info-Package: trickle-ice
      Content-type: application/sdp
      Content-Disposition: Info-Package
      Content-length: ...

      a=ice-pwd:asd88fgpdd777uzjYhagZg
      a=ice-ufrag:8hhY
      m=audio 9 RTP/AVP 0
      a=mid:1
      a=candidate:1 1 UDP 2130706431 2001:db8:a0b:12f0::1 5000 typ host
      a=candidate:1 2 UDP 2130706431 2001:db8:a0b:12f0::1 5001 typ host
      a=candidate:2 1 UDP 1694498815 2001:db8:a0b:12f0::3 5000 typ srflx
         raddr 2001:db8:a0b:12f0::1 rport 8998
      a=candidate:2 2 UDP 1694498815 2001:db8:a0b:12f0::3 5001 typ srflx
         raddr 2001:db8:a0b:12f0::1 rport 8998
      a=end-of-candidates
      m=audio 9 RTP/AVP 0
      a=mid:2
      a=candidate:1 1 UDP 2130706431 2001:db8:a0b:12f0::1 6000 typ host
      a=candidate:1 2 UDP 2130706431 2001:db8:a0b:12f0::1 6001 typ host
      a=candidate:2 1 UDP 1694498815 2001:db8:a0b:12f0::3 6000 typ srflx
         raddr 2001:db8:a0b:12f0::1 rport 9998
      a=candidate:2 2 UDP 1694498815 2001:db8:a0b:12f0::3 6001 typ srflx
         raddr 2001:db8:a0b:12f0::1 rport 9998
      a=end-of-candidates

On Fri, May 1, 2020 at 11:38 PM Richard Fuchs <rfuchs at sipwise.com> wrote:
>
> On 01/05/2020 11.16, Anthony Alba wrote:
> > In the ng protocol for rtpengine is there an "offer" command that
> > sends only trickle ICE candidates for an existing call-id?
>
> Hi,
>
> You would use an `offer` and add `fragment` to the `flags`. In Kamailio
> we have
> https://www.kamailio.org/docs/modules/stable/modules/rtpengine.html#rtpengine.f.rtpengine_info
>
> Cheers
>
>
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