WEBRTC Object #<RTCPeerConnection> has no method 'processSignalingMessage' - webrtc

Question

I have problems with the WebRTC:
I use this code from one example about Video calls.
if (new_connection) {
console.log('New Peer Connection');
var peer_connection = {};
peer_connection.connection_id = msg.from_connection_id;
peer_connection.pc = createPeerConnection(peer_connection.connection_id,
false);
peer_connections.push(peer_connection);
$('#remote').prepend(remoteVideoHtml.replace('remoteVideoId', 'peer' +
peer_connection.connection_id));
}
//Now process the SDP JSON Blob received
for (var i in peer_connections) {
if (peer_connections[i].connection_id == msg.from_connection_id) {
try {
peer_connections[i].pc.processSignalingMessage(msg.data);
}catch (e) {
console.log("Failed to create processSignalingMessage, exception: " + e.message);
}
I need help because I have one problem here.
peer_connections[i].pc.processSignalingMessage(msg.data);
The problem is:
Object #<RTCPeerConnection> has no method 'processSignalingMessage'
I don't know how those functions works and how they are invoqued:
pc.onconnecting = function (msg) {
console.log('onSessionConnecting');
}
pc.onopen = function (msg) {
console.log('onSessionOpened');
}
pc.onaddstream = function (event) {
console.log('onRemoteStreamAdded add the remote peers video stream.');
var url = webkitURL.createObjectURL(event.stream);
$('#peer' + connection_id).attr({
src: url
});
}
I will appreciate any help.

Answer 1

The initial version of WebRTC in Chrome was based on ROAP and it used to have a processSignallingMessage() method. The current version based on JSEP and it has methods like setRometeDescription() or setLocalDescription() to inject the local SDP and the SDP received from other users.
You can still find this implementation in old versions of Chrome or in Bowser.