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<!DOCTYPE html>
<html>
<!--
Copyright (c) 2013 The Chromium Authors. All rights reserved.
Use of this source code is governed by a BSD-style license that can be
found in the LICENSE file.
-->
<head>
<title>Video Effects Demo</title>
<style>
video {
border:5px solid black;
width:480px;
height:360px;
}
button {
font: 18px sans-serif;
padding: 8px;
}
textarea {
font-family: monospace;
margin: 2px;
width:480px;
height:640px;
}
</style>
</head>
<body>
<table>
<tr>
<td><video id="vidlocal" autoplay></video></td>
<td><video id="vidprocessedlocal" autoplay></video></td>
<td><video id="vidremote" autoplay></video></td>
</tr>
<tr>
<td>Local Media Stream</td>
<td>Local Media Stream After Effect</td>
<td>Remote Media Stream</td>
</tr>
<tr>
</table>
<br>
<button id="startButton" onclick="start()">Start</button>
<button id="toggleEffectButton" onclick="toggleEffect()">Enable Effect</button>
<button id="callButton" onclick="call()">Call</button>
<button id="hangupButton" onclick="hangup()">Hang Up</button>
<br>
<embed id="plugin" type="application/x-ppapi-example-video-effects"
width="320" height="240"/>
<script>
var RTCPeerConnection = webkitRTCPeerConnection;
var getUserMedia = navigator.webkitGetUserMedia.bind(navigator);
var attachMediaStream = function(element, stream) {
element.src = URL.createObjectURL(stream);
};
var startButton = document.getElementById('startButton');
var toggleEffectButton = document.getElementById('toggleEffectButton');
var callButton = document.getElementById('callButton');
var hangupButton = document.getElementById('hangupButton');
callButton.disabled = true;
hangupButton.disabled = true;
toggleEffectButton.disabled = true;
var pc1 = null;
var pc2 = null;
var localstream = null;
var processedLocalstream = null;
var effectsPlugin = null;
var effectsEnabled = false;
function trace(text) {
// This function is used for logging.
if (text[text.length - 1] == '\n') {
text = text.substring(0, text.length - 1);
}
console.log((performance.now() / 1000).toFixed(3) + ": " + text);
}
function gotStream(stream){
trace("Received local stream");
// Call the polyfill wrapper to attach the media stream to this element.
attachMediaStream(vidlocal, stream);
localstream = stream;
callButton.disabled = false;
initEffect();
}
function start() {
trace("Requesting local stream");
startButton.disabled = true;
// Call into getUserMedia via the polyfill (adapter.js).
getUserMedia({audio:false, video:true},
gotStream, function() {});
}
function onRegisterStreamDone() {
vidprocessedlocal.src = URL.createObjectURL(processedLocalstream);
toggleEffectButton.disabled = false;
}
function HandleMessage(message_event) {
if (message_event.data) {
if (message_event.data == 'DoneRegistering') {
onRegisterStreamDone();
} else {
trace(message_event.data);
}
}
}
function initEffect() {
var url = URL.createObjectURL(localstream);
processedLocalstream = new webkitMediaStream([]);
var processedStreamUrl = URL.createObjectURL(processedLocalstream);
effectsPlugin.postMessage(
'registerStream' + ' ' + url + ' ' + processedStreamUrl);
}
function toggleEffect() {
effectsEnabled = !effectsEnabled;
if (effectsEnabled) {
toggleEffectButton.innerHTML = 'Disable Effect';
effectsPlugin.postMessage('effectOn');
} else {
toggleEffectButton.innerHTML = 'Enable Effect';
effectsPlugin.postMessage('effectOff');
}
}
function call() {
callButton.disabled = true;
hangupButton.disabled = false;
trace("Starting call");
var servers = null;
pc1 = new RTCPeerConnection(servers);
trace("Created local peer connection object pc1");
pc1.onicecandidate = iceCallback1;
pc2 = new RTCPeerConnection(servers);
trace("Created remote peer connection object pc2");
pc2.onicecandidate = iceCallback2;
pc2.onaddstream = gotRemoteStream;
pc1.addStream(processedLocalstream);
trace("Adding Local Stream to peer connection");
pc1.createOffer(gotDescription1);
}
function gotDescription1(desc){
pc1.setLocalDescription(desc);
trace("Offer from pc1 \n" + desc.sdp);
pc2.setRemoteDescription(desc);
// Since the "remote" side has no media stream we need
// to pass in the right constraints in order for it to
// accept the incoming offer of audio and video.
var sdpConstraints = {'mandatory': {
'OfferToReceiveAudio':true,
'OfferToReceiveVideo':true }};
pc2.createAnswer(gotDescription2, null, sdpConstraints);
}
function gotDescription2(desc){
pc2.setLocalDescription(desc);
trace("Answer from pc2 \n" + desc.sdp);
pc1.setRemoteDescription(desc);
}
function hangup() {
trace("Ending call");
pc1.close();
pc2.close();
pc1 = null;
pc2 = null;
hangupButton.disabled = true;
callButton.disabled = false;
}
function gotRemoteStream(e){
vidremote.src = URL.createObjectURL(e.stream);
trace("Received remote stream");
}
function iceCallback1(event){
if (event.candidate) {
pc2.addIceCandidate(new RTCIceCandidate(event.candidate));
trace("Local ICE candidate: \n" + event.candidate.candidate);
}
}
function iceCallback2(event){
if (event.candidate) {
pc1.addIceCandidate(new RTCIceCandidate(event.candidate));
trace("Remote ICE candidate: \n " + event.candidate.candidate);
}
}
function InitializePlugin() {
effectsPlugin = document.getElementById('plugin');
effectsPlugin.addEventListener('message', HandleMessage, false);
}
document.addEventListener('DOMContentLoaded', InitializePlugin, false);
</script>
</body>
</html>
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