ppapi/examples/video_effects/video_effects.html - chromium/src - Git at Google

 <!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>
	<!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>