[Asterisk-video] SDP changes

[Olle E Johansson]

While I terrorize my students with evil IAX2 labs, I work a bit more  
on my
SDPcleanup code.

The idea is twofold:

- Not change the call if we get a re-invite we can't accept
- Not offer video on outbound call leg if there's no video inbound

This code is in the svn branch http://svn.digium.com/svn/asterisk/ 
team/oej/sdpcleanup

Feel free to test and give input on what to do. I feel I am close,  
but still do a lot of
debugging to get rid of the video offer on the outbound call leg.

Thanks for your help.

After this is fixed and committed, I'll start working with all of you  
to add
FMTP support, based on the patches from John Martin.

Greetings from New Jersey!

/O