I am trying to follow the 'getting started' WebRTC guide on:
http://www.html5rocks.com/en/tutorials/webrtc/basics/
What I am trying to achieve is to have a video connection between two peers. However when I share the webcam (press the allow button in chrome) the remoteVideo is black on the remote side.
My script:
var pc;
var sdpConstraints = {'mandatory': { 'OfferToReceiveAudio':true, 'OfferToReceiveVideo':true }};
var constraints = {video: true, audio: true};
var socket = io.connect();
function start(isCaller) {
var servers = {"iceServers": [{ "url": "stun:stun.l.google.com:19302"}]};
pc = new RTCPeerConnection(servers);
pc.onicecandidate = function(event) {
if(event.candidate) {
socket.emit('candidate', {'candidate': event.candidate});
}
}
pc.onaddstream = function(event) {
attachMediaStream(remoteVideo, event.stream);
}
getUserMedia(constraints, function(stream) {
attachMediaStream(localVideo, stream);
pc.addStream(stream);
if(isCaller) {
pc.createOffer(gotDescription, null, sdpConstraints);
} else {
pc.createAnswer(pc.remoteDescription, gotDescription);
}
function gotDescription(desc) {
pc.setLocalDescription(desc);
socket.emit('sdpMessage', {'sdpMessage': desc});
}
}, printError);
}
socket.on('gotMessage', function(data) {
if(!pc) { start(false); }
if(data.remoteSDP) {
pc.setRemoteDescription(new RTCSessionDescription(data.remoteSDP));
} else {
pc.addIceCandidate(new RTCIceCandidate(data.remoteCandidate), onAddIceCandidateSuccess, onAddIceCandidateError);
}
});
The HTML contains:
<button onclick="start(true)">HIT ME</button>
<video id="localVideo" autoplay></video>
<video id="remoteVideo" autoplay></video>
part of the server.js
serv_io.sockets.on('connection', function(socket) {
socket.on('candidate', function(data) {
socket.broadcast.emit('gotMessage', {'remoteCandidate': data.candidate});
});
socket.on('sdpMessage', function(data) {
socket.broadcast.emit('gotMessage', {'remoteSDP': data.sdpMessage});
});
}
The console does log an addIceCandidate succes, and when I log the media stream on the receiving end it's id and label correspond to the sender's id & label...
What am I doing wrong?
I also get this error:
"Failed to execute 'createAnswer' on 'RTCPeerConnection': The callback provided as parameter 1 is not a function."