<video id="local1" muted autoplay"></video>
<script>
  var local1 = document.getElementById("local1");
  function startVideo1() {
    navigator.getUserMedia({video:true}, successCallback1);
    function successCallback1(stream) {
      local1.src = window.URL.createObjectURL(stream); 
    }
  }
</script>

Using socket.io:

var server = require('http').createServer();
var io = require('socket.io').listen(server.listen(1337));

io.sockets.on('connection', function(socket) {

    socket.on('message', function(message) {
        socket.broadcast.emit('message', message);
    });

});

<video id="remotevid" autoplay></video>

var remotevid = document.getElementById('remotevid');

peerConn = new RTCPeerConnection({"iceServers":[]});
peerConn.onicecandidate = onIceCandidate;
peerConn.onaddstream = onRemoteStreamAdded;
peerConn.addstream(localStream);
peerConn.createOffer(setLocalAndSendMessage);

function onRemoteStreamAdded(event) {
  remoteVideo.src = window.URL.createObjectURL(event.stream);
}

function setLocalAndSendMessage(sessionDescription) {
  peerConn.setLocalDescription(sessionDescription);
  socket.json.send(sessionDescription);
}

Code on Google Code

Using socket.io:

Load Web page:

Code by &yet on GitHub:

• Server Code
• Client Code

var constraint = { audio: true,
                   video: {
                     mandatory: {
                       minHeight: 50,
                       maxHeight: 180,
                       maxFrameRate: 5,
                     },
                     optional: []
                   }
                 };
getUserMedia(constraint, onUserMediaSuccess, onUserMediaError);