I am trying to implement WebRTC DataChannel on Android. I want to create a simple peerconnection object which will open DataChannel to send data over the network using WebRTC. I am getting error when I try to create my PeerConnection Object. I learnt that we use factory to create peerconnection object using factory.createPeerConnection().
For this, I have to create the PeerConnectionFactory object first. After this, I can use it to create PeerConnection Object. I get errors Could not find method android.media.MediaCodec.setParameters and Fatal Signal 11 (SIGSEGV) at 0x00000000 (code=1) when I try to create PeerConnectionFactory object. I also tried the following code with PeerConnectionFactory.initializeAndroidGlobals(this, false, false, false); This is what I am trying to do:
PeerConnectionFactory factory = new PeerConnectionFactory();
peer = new Peer();
This is how my Peer object looks like:
public class Peer implements SdpObserver, PeerConnection.Observer, DataChannel.Observer {
private PeerConnection pc;
private DataChannel dc;
public Peer() {
this.pc = factory.createPeerConnection(RTCConfig.getIceServer(),
RTCConfig.getMediaConstraints(), this);
dc = this.pc.createDataChannel("sendDataChannel", new DataChannel.Init());
}
@Override
public void onAddStream(MediaStream arg0) {
// TODO Auto-generated method stub
}
@Override
public void onDataChannel(DataChannel dataChannel) {
this.dc = dataChannel;
}
@Override
public void onIceCandidate(final IceCandidate candidate) {
try {
JSONObject payload = new JSONObject();
payload.put("type", "candidate");
payload.put("label", candidate.sdpMLineIndex);
payload.put("id", candidate.sdpMid);
payload.put("candidate", candidate.sdp);
sendSocketMessageDataChannel(payload.toString());
} catch (JSONException e) {
e.printStackTrace();
}
}
@Override
public void onIceConnectionChange(IceConnectionState iceConnectionState) {
}
@Override
public void onIceGatheringChange(IceGatheringState arg0) {
// TODO Auto-generated method stub
}
@Override
public void onRemoveStream(MediaStream arg0) {
// TODO Auto-generated method stub
}
@Override
public void onRenegotiationNeeded() {
// TODO Auto-generated method stub
}
@Override
public void onSignalingChange(SignalingState arg0) {
// TODO Auto-generated method stub
}
@Override
public void onCreateFailure(String msg) {
Toast.makeText(getApplicationContext(),
msg, Toast.LENGTH_SHORT)
.show();
}
@Override
public void onCreateSuccess(SessionDescription sdp) {
try {
JSONObject payload = new JSONObject();
payload.put("type", sdp.type.canonicalForm());
payload.put("sdp", sdp.description);
sendSocketMessageDataChannel(payload.toString());
pc.setLocalDescription(FilePeer.this, sdp);
} catch (JSONException e) {
e.printStackTrace();
}
}
@Override
public void onSetFailure(String arg0) {
// TODO Auto-generated method stub
}
@Override
public void onSetSuccess() {
// TODO Auto-generated method stub
}
@Override
public void onMessage(Buffer data) {
Log.w("FILE", data.toString());
}
@Override
public void onStateChange() {
Toast.makeText(getApplicationContext(),
"State Got Changed", Toast.LENGTH_SHORT)
.show();
/*
byte[] bytes = new byte[10];
bytes[0] = 0;
bytes[1] = 1;
bytes[2] = 2;
bytes[3] = 3;
bytes[4] = 4;
bytes[5] = 5;
bytes[6] = 6;
bytes[7] = 7;
bytes[8] = 8;
bytes[9] = 9;
ByteBuffer buf = ByteBuffer.wrap(bytes);
Buffer b = new Buffer(buf, true);
dc.send(b);
*/
}
}
Can anybody point me to any sample source code which implements DataChannel on Android? Kindly also let me know if I am not doing it in a right way. I could not find the documentation for Android Native WebRTC which tells how to do it. I am trying to implement whatever I have learnt from using WebRTC on web.
Kindly, let me know if my question is not clear.
PeerConnectionFactory no longer requires initializing audio & video engines to be enabled.
PeerConnectionFactory.initializeAndroidGlobals(this, false, false, false);
Now you will be able to disable audio and video, and use data channels