WebRTC media over IOS

Question

I want to use WebRTC's media layer with proprietary signaling on IOS. Is it possible to use only the WebRTC media layer from the ObjC library that has been released for IOS (libjingle_peerconnection_objc.a)?

Answer 1

yes.

• the peer connection object provides all webRTC API, which by default does not include hardware capture, media rendering, and signaling. If you want a complete solution, you will need those 3 pieces.
• appRTCDemo code (webrtc.org), provides an implementation of audio and video capturers and renderers leveraging native iOS frameworks that you can reuse out of the box.
• You could then just replace the signaling (GAE Channel) by your own. Use the signaling for the original handshake (Offer/answer) and the media/data path setup (ICE candidate exchange) and the webRTC part will be taken care of.

Answer 2

If you want to replace media part only in your proprietary solution you can use VoiceEngine from WebRTC.

It's a part of webrtc's core and peer connection api is built on top of this. You should be aware that at your disposal will be RTP sender/receiver + voice processing. Security layer, NAT traversal, etc should be implemented by yourself.