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: 2017.08.10 -->
<html lang="en" dir="ltr">
<head>
<meta charset="utf-8">
<title>Multi-Broadcasters and Many Viewers 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>
</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>
Multi-Broadcasters and Many Viewers
<p class="no-mobile">
There are broadcasters, and there are many viewers i.e. receivers.
</p>
</h1>
<section class="make-center">
<label style="cursor: pointer;"><input type="checkbox"> Are You A Broadcaster?</label>
<br><br>
<input type="text" id="room-id" value="abcdef" autocorrect=off autocapitalize=off size=20>
<button id="open-broadcast" disabled>Open Broadcast</button>
<button id="join-broadcast">Join Broadcast</button>
<div id="room-urls" style="text-align: center;display: none;background: #F1EDED;margin: 15px -10px;border: 1px solid rgb(189, 189, 189);border-left: 0;border-right: 0;"></div>
<div id="videos-container"></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>
var checkbox = document.querySelector('input[type=checkbox]');
checkbox.onchange = function() {
if (checkbox.checked === false) {
document.getElementById('open-broadcast').disabled = true;
} else {
document.getElementById('open-broadcast').disabled = false;
}
};
function beforeJoiningARoom(callback) {
if (checkbox.checked === false) {
connection.extra.broadcaster = false;
connection.dontCaptureUserMedia = true;
connection.session.oneway = true;
} else {
connection.extra.broadcaster = true;
}
callback();
}
// ......................................................
// .......................UI Code........................
// ......................................................
document.getElementById('open-broadcast').onclick = function() {
disableInputButtons();
beforeJoiningARoom(function() {
connection.openOrJoin(document.getElementById('room-id').value, function(isRoomExist, roomid) {
showRoomURL(roomid);
afterConnectingSocket();
});
});
};
document.getElementById('join-broadcast').onclick = function() {
disableInputButtons();
joinBroadcastLooper(document.getElementById('room-id').value);
};
// ......................................................
// ..................RTCMultiConnection Code.............
// ......................................................
var connection = new RTCMultiConnection();
// 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 = 'multi-broadcasters-demo';
connection.session = {
audio: true,
video: true,
broadcast: true
};
connection.sdpConstraints.mandatory = {
OfferToReceiveAudio: true,
OfferToReceiveVideo: true
};
connection.videosContainer = document.getElementById('videos-container');
connection.onstream = function(event) {
var width = parseInt(connection.videosContainer.clientWidth / 2) - 20;
var mediaElement = getHTMLMediaElement(event.mediaElement, {
title: event.userid,
buttons: ['full-screen'],
width: width,
showOnMouseEnter: false
});
connection.videosContainer.appendChild(mediaElement);
setTimeout(function() {
mediaElement.media.play();
}, 5000);
mediaElement.id = event.streamid;
if (event.type === 'remote' && connection.isInitiator) {
var participants = [];
connection.getAllParticipants().forEach(function(pid) {
participants.push({
pid: pid,
broadcaster: connection.peers[pid].extra.broadcaster === true
});
});
connection.socket.emit(connection.socketCustomEvent, {
participants: participants
});
} else if (event.type === 'remote' && checkbox.checked === false) {
connection.socket.emit(connection.socketCustomEvent, {
giveAllParticipants: true
});
}
};
function afterConnectingSocket() {
connection.socket.on(connection.socketCustomEvent, function(message) {
console.error('custom message', message);
if (message.participants && !connection.isInitiator) {
message.participants.forEach(function(participant) {
if (participant.pid === connection.userid) return;
if (connection.getAllParticipants().indexOf(participant.pid) !== -1) return;
if (checkbox.checked === true && participant.broadcaster === false) return;
console.error('I am joining:', participant.pid);
connection.join(participant.pid);
});
}
if (message.giveAllParticipants && connection.isInitiator) {
var participants = [];
connection.getAllParticipants().forEach(function(pid) {
participants.push({
pid: pid,
broadcaster: connection.peers[pid].extra.broadcaster === true
});
});
connection.socket.emit(connection.socketCustomEvent, {
participants: participants
});
}
});
}
connection.onstreamended = function(event) {
var mediaElement = document.getElementById(event.streamid);
if (mediaElement) {
mediaElement.parentNode.removeChild(mediaElement);
}
};
function disableInputButtons() {
document.getElementById('open-broadcast').disabled = true;
document.getElementById('join-broadcast').disabled = true;
document.getElementById('room-id').disabled = true;
checkbox.disabled = true;
}
// ......................................................
// ......................Handling Room-ID................
// ......................................................
function showRoomURL(roomid) {
var roomHashURL = '#' + roomid;
var roomQueryStringURL = '?roomid=' + roomid;
var html = '<h2>Unique URL for your room:</h2><br>';
html += 'Hash URL: <a href="' + roomHashURL + '" target="_blank">' + roomHashURL + '</a>';
html += '<br>';
html += 'QueryString URL: <a href="' + roomQueryStringURL + '" target="_blank">' + roomQueryStringURL + '</a>';
var roomURLsDiv = document.getElementById('room-urls');
roomURLsDiv.innerHTML = html;
roomURLsDiv.style.display = 'block';
}
(function() {
var params = {},
r = /([^&=]+)=?([^&]*)/g;
function d(s) {
return decodeURIComponent(s.replace(/\+/g, ' '));
}
var match, search = window.location.search;
while (match = r.exec(search.substring(1)))
params[d(match[1])] = d(match[2]);
window.params = params;
})();
var roomid = '';
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);
};
var hashString = location.hash.replace('#', '');
if (hashString.length && hashString.indexOf('comment-') == 0) {
hashString = '';
}
var roomid = params.roomid;
if (!roomid && hashString.length) {
roomid = hashString;
}
function joinBroadcastLooper(roomid) {
// join-broadcast looper
(function reCheckRoomPresence() {
connection.checkPresence(roomid, function(isRoomExist) {
if (isRoomExist) {
beforeJoiningARoom(function() {
connection.join(roomid, function() {
afterConnectingSocket();
});
});
return;
}
setTimeout(reCheckRoomPresence, 5000);
});
})();
disableInputButtons();
}
if (roomid && roomid.length) {
document.getElementById('room-id').value = roomid;
localStorage.setItem(connection.socketMessageEvent, roomid);
joinBroadcastLooper(roomid);
}
</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>