pnwebrtc/src/main/java/me/kevingleason/pnwebrtc/PnSignalingParams.java
public static PnSignalingParams defaultInstance() {
        MediaConstraints pcConstraints    = PnSignalingParams.defaultPcConstraints();
        MediaConstraints videoConstraints = PnSignalingParams.defaultVideoConstraints();
        MediaConstraints audioConstraints = PnSignalingParams.defaultAudioConstraints();
        List<PeerConnection.IceServer> iceServers = PnSignalingParams.defaultIceServers();
        return new PnSignalingParams(iceServers, pcConstraints, videoConstraints, audioConstraints);
    }
public static PnSignalingParams defaultInstance() {
        MediaConstraints pcConstraints    = PnSignalingParams.defaultPcConstraints();
        MediaConstraints videoConstraints = PnSignalingParams.defaultVideoConstraints();
        MediaConstraints audioConstraints = PnSignalingParams.defaultAudioConstraints();
        List<PeerConnection.IceServer> iceServers = PnSignalingParams.defaultIceServers();
        return new PnSignalingParams(iceServers, pcConstraints, videoConstraints, audioConstraints);
    }
The default parameters for media constraints. Might have to tweak in future.
@return default parameters