Building video chat App based on libjingle or webRtc C++ API

[Aswini Kumar Sahoo]

Hello,
I am interested in building an Android video chat app using
either libjingle taking call sample as reference or using webRtc C++
API taking Peer_connection as reference.

I have following questions:

1) In case i use libjingle with webrtc audio/video engine, with call
sample as reference to make my app. Will i be able to use the google
talk server for session negotiation channel or do i need to maintain
an xmpp server for user login and user discovery.


2) In case i use webRtc C++ API taking Peer_connection as reference
then can i use google talk server for session negotiation channel or
do i need to maintain an xmpp server for user login and user
discovery.

3) In both cases is it necessary to provide details of relay server.
what relay server does call sample use?

4) which is a better option webRtc C++ API or libjingle to make my
android video chat app?

Any help is much appreciated.

Regards
Aswini Kumar