rtcmulticonnection
Version:
RTCMultiConnection is a WebRTC JavaScript wrapper library runs top over RTCPeerConnection API to support all possible peer-to-peer features.
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HTML
<!-- Demo version: 2017.08.12 -->
<html lang="en" dir="ltr">
<head>
<meta charset="utf-8">
<title>Switch/Change Cameras LIVE using RTCMultiConnection</title>
<meta name="viewport" content="width=device-width, initial-scale=1.0, minimum-scale=1.0">
<link rel="shortcut icon" href="/demos/logo.png">
<link rel="stylesheet" href="/demos/stylesheet.css">
<script src="/demos/menu.js"></script>
<style>
#cameras-selection-container .camera {
display: inline-block;
cursor: pointer;
border: 1px solid black;
border-radius: 5px;
margin: 0 5px;
overflow: hidden;
}
#cameras-selection-container .camera:hover, #cameras-selection-container .camera-selected {
background: yellow;
}
#cameras-selection-container .camera img {
height: 240px;
}
#cameras-selection-container .camera h2 {
font-size: 13px;
}
#cameras-selection-container .camera-selected h2 {
font-size: 17px;
}
</style>
</head>
<body>
<header>
<a class="logo" href="/demos/"><img src="/demos/logo.png" alt="RTCMultiConnection"></a>
<a href="/demos/" class="menu-explorer">Menu<img src="/demos/menu-icon.png" alt="Menu"></a>
<nav>
<li>
<a href="/demos/">Home</a>
</li>
<li>
<a href="http://www.rtcmulticonnection.org/docs/getting-started/">Getting Started</a>
</li>
<li>
<a href="http://www.rtcmulticonnection.org/FAQ/">FAQ</a>
</li>
<li>
<a href="https://www.youtube.com/playlist?list=PLPRQUXAnRydKdyun-vjKPMrySoow2N4tl">YouTube</a>
</li>
<li>
<a href="https://github.com/muaz-khan/RTCMultiConnection#v3-demos">Demos</a>
</li>
<li>
<a href="https://github.com/muaz-khan/RTCMultiConnection/wiki">Wiki</a>
</li>
<li>
<a href="https://github.com/muaz-khan/RTCMultiConnection">Github</a>
</li>
</nav>
</header>
<h1>
Switch/Change Cameras LIVE
<p class="no-mobile">
Change cameras during a LIVE conference among all users.
</p>
</h1>
<section class="make-center">
<div style="margin-bottom: 15px;">
Enter Room Unique ID: <input type="text" id="room-id" value="abcdef" autocorrect=off autocapitalize=off size=20>
<button id="open-or-join-room" style="display: none;">Auto Open Or Join Room</button>
</div>
<div id="videos-container"></div>
<div id="cameras-selection-container">
<h2 style="margin-bottom: 15px;">Select to change any camera anytime:</h2>
</div>
</section>
<script src="/dist/RTCMultiConnection.min.js"></script>
<script src="/dev/adapter.js"></script>
<script src="/socket.io/socket.io.js"></script>
<!-- custom layout for HTML5 audio/video elements -->
<link rel="stylesheet" href="/dev/getHTMLMediaElement.css">
<script src="/dev/getHTMLMediaElement.js"></script>
<script>
window.enableAdapter = true; // enable adapter.js
var connection = new RTCMultiConnection();
var cameraSelectionContainer = document.querySelector('#cameras-selection-container');
var dontDuplicate = {};
DetectRTC.load(function() {
DetectRTC.videoInputDevices.forEach(function(camera) {
if(dontDuplicate[camera.deviceId])return;
dontDuplicate[camera.deviceId] = true;
if(!camera.label) camera.label = 'Camera';
navigator.mediaDevices.getUserMedia({video: {deviceId: camera.deviceId}}).then(function(stream) {
var video = document.createElement('video');
video.onloadedmetadata = function() {
var photo = takePhoto(video);
video.removeAttribute('srcObject');
video.removeAttribute('src');
stream.getTracks().forEach(function(track) {
track.stop();
});
var div = document.createElement('div');
div.id = camera.deviceId;
div.className = 'camera';
var html = '<img src="' + photo + '">';
html += '<h2>' + camera.label.split('(')[0].trim() + '</h2>';
div.innerHTML = html;
cameraSelectionContainer.appendChild(div);
div.onclick = function() {
if((div.className || '').indexOf('camera-selected') !== -1) return;
querySelectorAll('.camera-selected').forEach(function(element) {
element.className = (element.className || '').replace(/camera-selected/g, '');
});
div.className += ' camera-selected';
if(!connection.attachStreams.length) {
connection.mediaConstraints.video.optional = [{
sourceId: div.id
}];
document.getElementById('open-or-join-room').onclick();
return;
}
if(!connection.getAllParticipants().length) {
connection.attachStreams.forEach(function(stream) {
stream.stop();
});
connection.mediaConstraints.video.optional = [{
sourceId: div.id
}];
document.getElementById('open-or-join-room').onclick();
return;
}
connection.attachStreams.forEach(function(stream) {
stream.stop();
});
connection.mediaConstraints.video.optional = [{
sourceId: div.id
}];
setTimeout(function() {
connection.addStream(connection.session);
}, 300);
};
};
video.srcObject = stream;
video.play();
});
});
});
function querySelectorAll(selector, element) {
element = element || document;
return Array.prototype.slice.call(element.querySelectorAll(selector));
}
function takePhoto(video) {
var canvas = document.createElement('canvas');
canvas.width = video.videoWidth || video.clientWidth;
canvas.height = video.videoHeight || video.clientHeight;
var context = canvas.getContext('2d');
context.drawImage(video, 0, 0, canvas.width, canvas.height);
return canvas.toDataURL('image/png');
}
// ......................................................
// .......................UI Code........................
// ......................................................
document.getElementById('open-or-join-room').onclick = function() {
disableInputButtons();
connection.openOrJoin(document.getElementById('room-id').value);
};
// ......................................................
// ..................RTCMultiConnection Code.............
// ......................................................
// by default, socket.io server is assumed to be deployed on your own URL
connection.socketURL = '/';
// comment-out below line if you do not have your own socket.io server
// connection.socketURL = 'https://rtcmulticonnection.herokuapp.com:443/';
connection.socketMessageEvent = 'switch-cameras-demo';
connection.session = {
audio: true,
video: true
};
connection.sdpConstraints.mandatory = {
OfferToReceiveAudio: true,
OfferToReceiveVideo: true
};
connection.videosContainer = document.getElementById('videos-container');
connection.onstream = function(event) {
event.mediaElement.removeAttribute('src');
event.mediaElement.removeAttribute('srcObject');
if(document.querySelector('[data-userid="'+event.userid+'"]')) {
var mediaElement = document.querySelector('[data-userid="'+event.userid+'"]');
mediaElement.querySelector('video').srcObject = event.stream;
mediaElement.id = event.streamid;
return;
}
var video = document.createElement('video');
video.controls = true;
if(event.type === 'local') {
video.muted = true;
}
video.srcObject = event.stream;
var width = parseInt(connection.videosContainer.clientWidth / 2) - 20;
var mediaElement = getHTMLMediaElement(video, {
title: event.userid,
buttons: ['full-screen'],
width: width,
showOnMouseEnter: false
});
connection.videosContainer.appendChild(mediaElement);
setTimeout(function() {
mediaElement.media.play();
}, 5000);
mediaElement.id = event.streamid;
mediaElement.setAttribute('data-userid', event.userid);
};
connection.onstreamended = function(event) {
var mediaElement = document.getElementById(event.streamid);
if (mediaElement) {
mediaElement.parentNode.removeChild(mediaElement);
}
};
function disableInputButtons() {
document.getElementById('open-or-join-room').disabled = true;
document.getElementById('room-id').disabled = true;
}
// ......................................................
// ......................Handling Room-ID................
// ......................................................
if (localStorage.getItem(connection.socketMessageEvent)) {
roomid = localStorage.getItem(connection.socketMessageEvent);
} else {
roomid = connection.token();
}
document.getElementById('room-id').value = roomid;
document.getElementById('room-id').onkeyup = function() {
localStorage.setItem(connection.socketMessageEvent, this.value);
};
</script>
<section class="no-mobile">
<h2>iOS or Android</h2>
<p>
You can write <a href="http://www.rtcmulticonnection.org/docs/Write-iOS-Apps/" target="_blank">iOS</a> or <a href="http://www.rtcmulticonnection.org/docs/Write-Android-Apps/" target="_blank">Android</a> apps for this demo as well.
</p>
</section>
<footer>
<small id="send-message"></small>
</footer>
<script src="https://cdn.webrtc-experiment.com/common.js"></script>
</body>
</html>