Socket.io

// http://www.webrtc-experiment.com/socket.io/PeerConnection.js

var peer = new **PeerConnection** (' **http://domain:port**');
peer. **onStreamAdded** = function(e) {
   document.body.appendChild(e.mediaElement);
};

// the easiest method of "manual" peers connection is
// call "sendParticipationRequest" and pass user-id of the target user
peer. **sendParticipationRequest** (userid);

//otherwise, call "startBroadcasting"
// (behind the scene) this function will be invoked
// recursively until a participant found
peer. **startBroadcasting** ();

var offerer = new **PeerConnection** (' **http://domain:port**', ' **message**', ' **offerer**');
offerer. **onStreamAdded** = function(e) {
   document.body.appendChild(e.mediaElement);
};

var answerer = new **PeerConnection** (' **http://domain:port**', ' **message**', ' **answerer**');
answerer. **onStreamAdded** = function(e) {
   document.body.appendChild(e.mediaElement);
};
answerer. **sendParticipationRequest** ( **'offerer'** );

function getUserMedia(callback) {
    var hints = {
        audio: true,
        video: {
            optional: [],

            // capture super-hd stream!
            mandatory: {
                minWidth: 1280,
                minHeight: 720,
                maxWidth: 1920,
                maxHeight: 1080,
                minAspectRatio: 1.77
            }
        }
    };

    navigator.getUserMedia(hints, function (stream) {
        // you can use "peer.addStream" to attach stream
        // peer.addStream(stream);
        // or peer.MediaStream = stream;

        callback(stream);

        // preview local video
        var video = document.createElement('video');
        video.srcObject = stream;
        video.controls = true;
        video.muted = true;

        peer.onStreamAdded({
            mediaElement: video,
            userid: 'self',
            stream: stream
        });
    });
}

var channel = location.href.replace(/\/|:|#|%|\.|\[|\]/g, '');
var sender = Math.round(Math.random() * 999999999) + 999999999;

// var SIGNALING_SERVER = 'https://socketio-over-nodejs2.herokuapp.com:443/';
var SIGNALING_SERVER = 'https://webrtcweb.com:9559/';
io.connect(SIGNALING_SERVER).emit('new-channel', {
    channel: channel,
    sender: sender
});

var socket = io.connect(SIGNALING_SERVER + channel);
socket.send = function (message) {
    socket.emit('message', {
        sender: sender,
        data: message
    });
};

// pass "socket" object over the constructor instead of URL
var peer = new PeerConnection(socket);