Priyaranjan Nayak <[email protected]> writes:
> While doing srtp call, we need to create a security policy from sender
> side(calling party) and receiver side(called party).We have to provide the
> same ssrc value while creating security policy for encoding and decoding
> the RTP packets.
>
> Could you please tell me how can we send the ssrc value from sender to
> receiver before RTP session start ?
There are any number of ways to transfer a token value from one end to
the other. One way is to invent a private attribute value and put it in
the SDP:
v=0
o=jdoe 2890844526 2890842807 IN IP4 10.47.16.5
c=IN IP4 224.2.17.12/127
t=0 0
a=sendrecv
m=audio 49170 RTP/AVP 98
a=rtpmap:98 L16/16000/2
a=ssrc-i-will-use:0b1e2e3f
Each side can use a=ssrc-i-will-use to tell the other what SSRC it will
be sending.
Dale
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