Do you want to change/update the SDP once the call is established ? 
shouldn't it just work like this:

if(has_totag() && is_method("INVITE")) {
      if(search_body("video") {
      set_rtpproxy_set("1");
      unforce_rtpproxy();
      set_rtpproxy_set("2");
      offer_rtpproxy("$avp(myflags)"); 
     }
}

Since it is already a ReINVITE any modification in the SDP c= part should be happily accepted !?

Regards,
Sammy

On Thu, Jan 14, 2016 at 10:18 AM, Koray Vatansever <koray.vatansever@gmail.com> wrote:
Hi Sammy,

I'm not sure it will work.
Assume the following scenario:
Kamailio receives INVITE with audio only SDP and selects rtpproxy-1.
After a while video is enabled with REINVITE. 
Now SDP has video and kamailio selects rtpproxy-2 according to your solution.
In this case, most probably video and audio rtp packages will flow through rtpproxy-2.
However what I want to do is to keep rtpproxy-1 for audio packages and add rtpproxy-2 for video packages 
and release audio ports from rtpproxy-1 and video ports from rtpproxy-2 when BYE received.

Is there any easy way to do that in Kamailio?




On Thu, Jan 14, 2016 at 3:30 PM, SamyGo <govoiper@gmail.com> wrote:

Hi,
Yes thats possible as I think you can do a search in SDP body for "video" if found then select the rtpproxy instance else select other one.

Regards,
Sammy

On Jan 14, 2016 06:39, "Koray Vatansever" <koray.vatansever@gmail.com> wrote:
Hi everybody,

Is there a way to use different rtpproxies for different media types?
I want to use one rtpproxy set for audio, and use another one for video.
Is this possible in kamailio?


Regards,
Koray

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