Is it possible to build a native android-to-android video chat app using webrtc?

Question

I see a lot of tutorials in the Internet teaching about android to browser or browser to browser webrtc application. Is it possible to build a native android-to-android video chat app using webrtc?

Answer 1

There is an official Android sample project AppRTCMobile provided here - https://webrtc.org/native-code/android/. However, the build process is tedious and the total download size exceeds 20 GB. The recommended way is to use the following dependency in your project. implementation 'org.webrtc:google-webrtc:1.0.+'

However, for video chat functionality you will need to refer AppRTCMobile source code. There is a clone of this project on GitHub updated for Oreo and ready to import in Android Studio. Check out this link.

Answer 2

Well, for establishing a connection between the devices before the call via peer-to-peer WebRTC solution you need STUN/TURN/ICE servers. They establish the route for communication between the devices. Once the route is established the devices communicate directly without participation of a server for passing the media streams.

To make it easier for you, you can look at or try some existing solutions, like ConnectyCube. They have peer-to-peer WebRTC solution for Android already implemented. So, maybe there is not need to reinvent the wheel.