Video chat in android

Question

What i am doing:

I am building an android application for 1 to 1 video chatting and i need help here

What i did:

1) I came across Quickblox, i tried my best to understand and implement it and i really coudn't get it working

2) I researched about Sipdroid, i cant understand it either

What i want:

I am in need of either

1) A simple library, with good documentation to implement video chat.

2) An excellent tutorial for implementing video chat in android.

Please guide me