[Freeswitch-users] SDP Renegotiation

[Jon Lederman]

Hi,

I am trying to get my client to work with Freeswitch in the following context to no avail.  If I initiate a video call, the video works fine.  However, if I start an audio call and then try to add video later in the call, no video is received.  I tried adding this line to vars.xml:  (<param name="renegotiate-codec-on-reinvite" value="true”/>
That, however, did not fix the problem.

Any help would be greatly appreciated.  The SDP negotiation is indicated below.  Thanks in advance.

I do see in fs_cli that FS has received a new SDP and is trying to renegotiate as follows:

INITIAL SDP (AUDIO ONLY):
v=0
o=FreeSWITCH 1421171138 1421171140 IN IP4 146.148.54.28
s=FreeSWITCH
c=IN IP4 146.148.54.28
t=0 0
m=audio 25746 RTP/AVP 124 101
a=rtpmap:124 opus/48000/2
a=fmtp:124 useinbandfec=1
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-16
a=silenceSupp:off - - - -
a=ptime:20
a=sendrecv
m=video 26852 RTP/AVP 98
a=rtpmap:98 VP8/90000

NEW SDP WITH ATTEMPT TO ADD VIDEO TO EXISTING SESSIOn:
2015-01-14 00:55:29.401667 [DEBUG] sofia.c:5828 Remote SDP:
v=0
o=1000 3968 2153 IN IP4 10.1.10.10
s=Talk
c=IN IP4 10.1.10.10
b=AS:380
t=0 0
a=rtcp-xr:rcvr-rtt=all:10000 stat-summary=loss,dup,jitt,TTL voip-metrics
m=audio 53368 RTP/AVP 124 101
a=rtpmap:124 opus/48000/2
a=fmtp:124 useinbandfec=1; stereo=0; sprop-stereo=0
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-15
m=video 9078 RTP/AVP 103
a=rtpmap:103 VP8/90000


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