[Freeswitch-users] Video not secured on B-Leg

Asier Benito sherlack1990 at gmail.com
Tue Jul 9 13:08:12 MSD 2013


Hi,

I'm new to Freeswitch and I'm trying to secure B-leg with SRTP from
incoming call with video and audio via RTMP.
To secure it, i'm using nolocal:sip_secure_media=true, the problem is that
freeswitch only secures audio but not video,

I'm using Freeswitch 1.2.11 and Linphone as B leg, here you have the SDP:

2013-07-09 08:35:07.210255 [DEBUG] switch_channel.c:1176 sofia/internal/
1006 at 5.56.58.79 EXPORTING[export_vars] [sip_secure_media]=[true] to event
2013-07-09 08:35:07.210255 [DEBUG] switch_channel.c:1176 sofia/internal/
1006 at 5.56.58.79 EXPORTING[export_vars] [sdp_secure_savp_only]=[true] to
event
2013-07-09 08:35:07.210255 [DEBUG] sofia_glue.c:2678 Local SDP:
v=0
o=FreeSWITCH 1373328169 1373328170 IN IP4 XX.XX.XX.XX
s=FreeSWITCH
c=IN IP4 XX.XX.XX.XX
t=0 0
m=audio 30738 RTP/SAVP 99 100 101 13
a=rtpmap:99 SPEEX/16000
a=rtpmap:100 SPEEX/8000
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-16
a=crypto:1 AES_CM_128_HMAC_SHA1_32
inline:u9q805XwSn8pIzKZZbfxxGoOOQU6ztTbr7zCUx+q
a=ptime:20
a=sendrecv
m=video 24388 RTP/AVP 98
a=rtpmap:98 H264/90000
a=fmtp:98 packetization-mode=0; profile-level-id=42000a

If I capture packets with tcpdump I can see how audio is secured with SRTP
but not the video.

Any idea about what is going wrong?

Thanks in advance.

Regards.
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