webrtc initial commit

client/webrtc-org.js

@@ -0,0 +1,79 @@
+var localVideo;
+var remoteVideo;
+var peerConnection;
+var peerConnectionConfig = {'iceServers': [{'url': 'stun:stun.services.mozilla.com'}, {'url': 'stun:stun.l.google.com:19302'}]};
+
+navigator.getUserMedia = navigator.getUserMedia || navigator.mozGetUserMedia || navigator.webkitGetUserMedia;
+window.RTCPeerConnection = window.RTCPeerConnection || window.mozRTCPeerConnection || window.webkitRTCPeerConnection;
+window.RTCIceCandidate = window.RTCIceCandidate || window.mozRTCIceCandidate || window.webkitRTCIceCandidate;
+window.RTCSessionDescription = window.RTCSessionDescription || window.mozRTCSessionDescription || window.webkitRTCSessionDescription;
+
+function pageReady() {
+    localVideo = document.getElementById('localVideo');
+    remoteVideo = document.getElementById('remoteVideo');
+
+    serverConnection = new WebSocket('ws://127.0.0.1:3434');
+    serverConnection.onmessage = gotMessageFromServer;
+
+    var constraints = {
+        video: true,
+        audio: true,
+    };
+
+    if(navigator.getUserMedia) {
+        navigator.getUserMedia(constraints, getUserMediaSuccess, errorHandler);
+    } else {
+        alert('Your browser does not support getUserMedia API');
+    }
+}
+
+function getUserMediaSuccess(stream) {
+    localStream = stream;
+    localVideo.src = window.URL.createObjectURL(stream);
+}
+
+function start(isCaller) {
+    peerConnection = new RTCPeerConnection(peerConnectionConfig);
+    peerConnection.onicecandidate = gotIceCandidate;
+    peerConnection.onaddstream = gotRemoteStream;
+    peerConnection.addStream(localStream);
+
+    if(isCaller) {
+        peerConnection.createOffer(gotDescription, errorHandler);
+    }
+}
+
+function gotMessageFromServer(message) {
+    if(!peerConnection) start(false);
+
+    var signal = JSON.parse(message.data);
+    if(signal.sdp) {
+        peerConnection.setRemoteDescription(new RTCSessionDescription(signal.sdp), function() {
+            peerConnection.createAnswer(gotDescription, errorHandler);
+        }, errorHandler);
+    } else if(signal.ice) {
+        peerConnection.addIceCandidate(new RTCIceCandidate(signal.ice));
+    }
+}
+
+function gotIceCandidate(event) {
+    if(event.candidate != null) {
+        serverConnection.send(JSON.stringify({'ice': event.candidate}));
+    }
+}
+
+function gotDescription(description) {
+    console.log('got description');
+    peerConnection.setLocalDescription(description, function () {
+        serverConnection.send(JSON.stringify({'sdp': description}));
+    }, function() {console.log('set description error')});
+}
+
+function gotRemoteStream(event) {
+    console.log('got remote stream');
+    remoteVideo.src = window.URL.createObjectURL(event.stream);
+}
+
+function errorHandler(error) {
+    console.log(error);
+}