in reply to Is a Perl Skype-like VoIP connection possible?
It would make for a clunky video conference system, but you could have each user open VLC to stream their own camera, and then open one VLC player for each user you wanted to see video from. So for 2 people, 2 copies of vlc, one outgoing and one incoming. Beware of feedback loops.
If that works, you could try scripting it into a more cohesive experience. As it happens, I'm the author of VideoLAN::LibVLC which would allow you to start multiple copies of libvlc from within a perl script. I designed that library for being able to dissect the individual video frames though, which won't be useful to you, but there might be enough API available to make a video conference app. There is also Vlc::Engine and VideoLan::Client.