Is there a library or any way to embed video chat capability in a ios application ?
I work at 2600hz, I'm new to stack overflow so if I'm screwing something up, let me know.
You can use Kazoo, our fully open-source cloud voip stack for this, our APIs allow you do all the sip signaling and proxying for Facetime style video connections (we do this for audio calls now, and video works in our lab but we haven't rolled it out to our community yet. Basically you'd need to do some QA).
If you'd like to play with it, I can send you an invite to our hosted cluster OR you can install it directly from our Git repos here: https://github.com/2600hz/kazoo