Here is SDP data from Wirecast:
v=0
o=- 1798860268 1798860268 IN IP4 127.0.0.0
s=Wirecast
t=0 0
a=range:npt=now-
m=audio 5432 RTP/AVP 96
c=IN IP4 127.0.0.1
a=rtpmap:96 mpeg4-generic/32000/1
a=fmtp:96 profile-level-id=15;mode=AAC-hbr;sizelength=13;indexlength=3;indexdeltalength=3;config=1288
m=video 5434 RTP/AVP 97
c=IN IP4 127.0.0.1
a=rtpmap:97 H264/90000
a=fmtp:97 packetization-mode=1;profile-level-id=4D400C;sprop-parameter-sets=J01ADKkYKD9gDUGAQa2wrXvfAQ==,KN4JF6A=
a=cliprect:0,0,240,320
a=framesize:97 320-240
b=AS:200
It looks like the backslashes could be a problem. If you want me to look at debugs to see if it is a key frame problem, I can.
Charlie