videoroomtest.js

// We make use of this 'server' variable to provide the address of the
// REST Janus API. By default, in this example we assume that Janus is
// co-located with the web server hosting the HTML pages but listening
// on a different port (8088, the default for HTTP in Janus), which is
// why we make use of the 'window.location.hostname' base address. Since
// Janus can also do HTTPS, and considering we don't really want to make
// use of HTTP for Janus if your demos are served on HTTPS, we also rely
// on the 'window.location.protocol' prefix to build the variable, in
// particular to also change the port used to contact Janus (8088 for
// HTTP and 8089 for HTTPS, if enabled).
// In case you place Janus behind an Apache frontend (as we did on the
// online demos at http://janus.conf.meetecho.com) you can just use a
// relative path for the variable, e.g.:
//
// 		var server = "/janus";
//
// which will take care of this on its own.
//
//
// If you want to use the WebSockets frontend to Janus, instead, you'll
// have to pass a different kind of address, e.g.:
//
// 		var server = "ws://" + window.location.hostname + ":8188";
//
// Of course this assumes that support for WebSockets has been built in
// when compiling the server. WebSockets support has not been tested
// as much as the REST API, so handle with care!
//
//
// If you have multiple options available, and want to let the library
// autodetect the best way to contact your server (or pool of servers),
// you can also pass an array of servers, e.g., to provide alternative
// means of access (e.g., try WebSockets first and, if that fails, fall
// back to plain HTTP) or just have failover servers:
//
//		var server = [
//			"ws://" + window.location.hostname + ":8188",
//			"/janus"
//		];
//
// This will tell the library to try connecting to each of the servers
// in the presented order. The first working server will be used for
// the whole session.
//
var server = null;
if(window.location.protocol === 'http:')
	server = "/janus";
else
	server = "/janus";

var janus = null;
var sfutest = null;
var opaqueId = "videoroomtest-"+Janus.randomString(12);

var myroom = 2345;	// Demo room
if(getQueryStringValue("room") !== "")
	myroom = parseInt(getQueryStringValue("room"));
var myusername = null;
var myid = null;
var mystream = null;
// We use this other ID just to map our subscriptions to us
var mypvtid = null;

var feeds = [];
var bitrateTimer = [];

var doSimulcast = (getQueryStringValue("simulcast") === "yes" || getQueryStringValue("simulcast") === "true");
var doSimulcast2 = (getQueryStringValue("simulcast2") === "yes" || getQueryStringValue("simulcast2") === "true");
var subscriber_mode = (getQueryStringValue("subscriber-mode") === "yes" || getQueryStringValue("subscriber-mode") === "true");

$(document).ready(function() {
	// Initialize the library (all console debuggers enabled)
	Janus.init({debug: "all", callback: function() {
		// Use a button to start the demo
		$('#start').on('click', function() {
			$(this).attr('disabled', true).unbind('click');
			// Make sure the browser supports WebRTC
			if(!Janus.isWebrtcSupported()) {
				bootbox.alert("No WebRTC support... ");
				return;
			}
			// Create session
			janus = new Janus(
				{
					server: server,
					success: function() {
						// Attach to VideoRoom plugin
						janus.attach(
							{
								plugin: "janus.plugin.videoroom",
								opaqueId: opaqueId,
								success: function(pluginHandle) {
									$('#details').remove();
									sfutest = pluginHandle;
									Janus.log("Plugin attached! (" + sfutest.getPlugin() + ", id=" + sfutest.getId() + ")");
									Janus.log("  -- This is a publisher/manager");
									// Prepare the username registration
									$('#videojoin').removeClass('hide').show();
									$('#registernow').removeClass('hide').show();
									$('#register').click(registerUsername);
									$('#username').focus();
									$('#start').removeAttr('disabled').html("Stop")
										.click(function() {
											$(this).attr('disabled', true);
											janus.destroy();
										});
								},
								error: function(error) {
									Janus.error("  -- Error attaching plugin...", error);
									bootbox.alert("Error attaching plugin... " + error);
								},
								consentDialog: function(on) {
									Janus.debug("Consent dialog should be " + (on ? "on" : "off") + " now");
									if(on) {
										// Darken screen and show hint
										$.blockUI({
											message: '<div><img src="up_arrow.png"/></div>',
											css: {
												border: 'none',
												padding: '15px',
												backgroundColor: 'transparent',
												color: '#aaa',
												top: '10px',
												left: (navigator.mozGetUserMedia ? '-100px' : '300px')
											} });
									} else {
										// Restore screen
										$.unblockUI();
									}
								},
								iceState: function(state) {
									Janus.log("ICE state changed to " + state);
								},
								mediaState: function(medium, on) {
									Janus.log("Janus " + (on ? "started" : "stopped") + " receiving our " + medium);
								},
								webrtcState: function(on) {
									Janus.log("Janus says our WebRTC PeerConnection is " + (on ? "up" : "down") + " now");
									$("#videolocal").parent().parent().unblock();
									if(!on)
										return;
									$('#publish').remove();
									// This controls allows us to override the global room bitrate cap
									$('#bitrate').parent().parent().removeClass('hide').show();
									$('#bitrate a').click(function() {
										var id = $(this).attr("id");
										var bitrate = parseInt(id)*1000;
										if(bitrate === 0) {
											Janus.log("Not limiting bandwidth via REMB");
										} else {
											Janus.log("Capping bandwidth to " + bitrate + " via REMB");
										}
										$('#bitrateset').html($(this).html() + '<span class="caret"></span>').parent().removeClass('open');
										sfutest.send({ message: { request: "configure", bitrate: bitrate }});
										return false;
									});
								},
								onmessage: function(msg, jsep) {
									Janus.debug(" ::: Got a message (publisher) :::", msg);
									var event = msg["videoroom"];
									Janus.debug("Event: " + event);
									if(event) {
										if(event === "joined") {
											// Publisher/manager created, negotiate WebRTC and attach to existing feeds, if any
											myid = msg["id"];
											mypvtid = msg["private_id"];
											Janus.log("Successfully joined room " + msg["room"] + " with ID " + myid);
											if(subscriber_mode) {
												$('#videojoin').hide();
												$('#videos').removeClass('hide').show();
											} else {
												publishOwnFeed(true);
											}
											// Any new feed to attach to?
											if(msg["publishers"]) {
												var list = msg["publishers"];
												Janus.debug("Got a list of available publishers/feeds:", list);
												for(var f in list) {
													var id = list[f]["id"];
													var display = list[f]["display"];
													var audio = list[f]["audio_codec"];
													var video = list[f]["video_codec"];
													Janus.debug("  >> [" + id + "] " + display + " (audio: " + audio + ", video: " + video + ")");
													newRemoteFeed(id, display, audio, video);
												}
											}
										} else if(event === "destroyed") {
											// The room has been destroyed
											Janus.warn("The room has been destroyed!");
											bootbox.alert("The room has been destroyed", function() {
												window.location.reload();
											});
										} else if(event === "event") {
											// Any new feed to attach to?
											if(msg["publishers"]) {
												var list = msg["publishers"];
												Janus.debug("Got a list of available publishers/feeds:", list);
												for(var f in list) {
													var id = list[f]["id"];
													var display = list[f]["display"];
													var audio = list[f]["audio_codec"];
													var video = list[f]["video_codec"];
													Janus.debug("  >> [" + id + "] " + display + " (audio: " + audio + ", video: " + video + ")");
													newRemoteFeed(id, display, audio, video);
												}
											} else if(msg["leaving"]) {
												// One of the publishers has gone away?
												var leaving = msg["leaving"];
												Janus.log("Publisher left: " + leaving);
												var remoteFeed = null;
												for(var i=1; i<6; i++) {
													if(feeds[i] && feeds[i].rfid == leaving) {
														remoteFeed = feeds[i];
														break;
													}
												}
												if(remoteFeed != null) {
													Janus.debug("Feed " + remoteFeed.rfid + " (" + remoteFeed.rfdisplay + ") has left the room, detaching");
													$('#remote'+remoteFeed.rfindex).empty().hide();
													$('#videoremote'+remoteFeed.rfindex).empty();
													feeds[remoteFeed.rfindex] = null;
													remoteFeed.detach();
												}
											} else if(msg["unpublished"]) {
												// One of the publishers has unpublished?
												var unpublished = msg["unpublished"];
												Janus.log("Publisher left: " + unpublished);
												if(unpublished === 'ok') {
													// That's us
													sfutest.hangup();
													return;
												}
												var remoteFeed = null;
												for(var i=1; i<6; i++) {
													if(feeds[i] && feeds[i].rfid == unpublished) {
														remoteFeed = feeds[i];
														break;
													}
												}
												if(remoteFeed != null) {
													Janus.debug("Feed " + remoteFeed.rfid + " (" + remoteFeed.rfdisplay + ") has left the room, detaching");
													$('#remote'+remoteFeed.rfindex).empty().hide();
													$('#videoremote'+remoteFeed.rfindex).empty();
													feeds[remoteFeed.rfindex] = null;
													remoteFeed.detach();
												}
											} else if(msg["error"]) {
												if(msg["error_code"] === 426) {
													// This is a "no such room" error: give a more meaningful description
													bootbox.alert(
														"<p>Apparently room <code>" + myroom + "</code> (the one this demo uses as a test room) " +
														"does not exist...</p><p>Do you have an updated <code>janus.plugin.videoroom.jcfg</code> " +
														"configuration file? If not, make sure you copy the details of room <code>" + myroom + "</code> " +
														"from that sample in your current configuration file, then restart Janus and try again."
													);
												} else {
													bootbox.alert(msg["error"]);
												}
											}
										}
									}
									if(jsep) {
										Janus.debug("Handling SDP as well...", jsep);
										sfutest.handleRemoteJsep({ jsep: jsep });
										// Check if any of the media we wanted to publish has
										// been rejected (e.g., wrong or unsupported codec)
										var audio = msg["audio_codec"];
										if(mystream && mystream.getAudioTracks() && mystream.getAudioTracks().length > 0 && !audio) {
											// Audio has been rejected
											toastr.warning("Our audio stream has been rejected, viewers won't hear us");
										}
										var video = msg["video_codec"];
										if(mystream && mystream.getVideoTracks() && mystream.getVideoTracks().length > 0 && !video) {
											// Video has been rejected
											toastr.warning("Our video stream has been rejected, viewers won't see us");
											// Hide the webcam video
											$('#myvideo').hide();
											$('#videolocal').append(
												'<div class="no-video-container">' +
													'<i class="fa fa-video-camera fa-5 no-video-icon" style="height: 100%;"></i>' +
													'<span class="no-video-text" style="font-size: 16px;">Video rejected, no webcam</span>' +
												'</div>');
										}
									}
								},
								onlocalstream: function(stream) {
									Janus.debug(" ::: Got a local stream :::", stream);
									mystream = stream;
									$('#videojoin').hide();
									$('#videos').removeClass('hide').show();
									if($('#myvideo').length === 0) {
										$('#videolocal').append('<video class="rounded centered" id="myvideo" width="100%" height="100%" autoplay playsinline muted="muted"/>');
										// Add a 'mute' button
										$('#videolocal').append('<button class="btn btn-warning btn-xs" id="mute" style="position: absolute; bottom: 0px; left: 0px; margin: 15px;">Mute</button>');
										$('#mute').click(toggleMute);
										// Add an 'unpublish' button
										$('#videolocal').append('<button class="btn btn-warning btn-xs" id="unpublish" style="position: absolute; bottom: 0px; right: 0px; margin: 15px;">Unpublish</button>');
										$('#unpublish').click(unpublishOwnFeed);
									}
									$('#publisher').removeClass('hide').html(myusername).show();
									Janus.attachMediaStream($('#myvideo').get(0), stream);
									$("#myvideo").get(0).muted = "muted";
									if(sfutest.webrtcStuff.pc.iceConnectionState !== "completed" &&
											sfutest.webrtcStuff.pc.iceConnectionState !== "connected") {
										$("#videolocal").parent().parent().block({
											message: '<b>Publishing...</b>',
											css: {
												border: 'none',
												backgroundColor: 'transparent',
												color: 'white'
											}
										});
									}
									var videoTracks = stream.getVideoTracks();
									if(!videoTracks || videoTracks.length === 0) {
										// No webcam
										$('#myvideo').hide();
										if($('#videolocal .no-video-container').length === 0) {
											$('#videolocal').append(
												'<div class="no-video-container">' +
													'<i class="fa fa-video-camera fa-5 no-video-icon"></i>' +
													'<span class="no-video-text">No webcam available</span>' +
												'</div>');
										}
									} else {
										$('#videolocal .no-video-container').remove();
										$('#myvideo').removeClass('hide').show();
									}
								},
								onremotestream: function(stream) {
									// The publisher stream is sendonly, we don't expect anything here
								},
								oncleanup: function() {
									Janus.log(" ::: Got a cleanup notification: we are unpublished now :::");
									mystream = null;
									$('#videolocal').html('<button id="publish" class="btn btn-primary">Publish</button>');
									$('#publish').click(function() { publishOwnFeed(true); });
									$("#videolocal").parent().parent().unblock();
									$('#bitrate').parent().parent().addClass('hide');
									$('#bitrate a').unbind('click');
								}
							});
					},
					error: function(error) {
						Janus.error(error);
						bootbox.alert(error, function() {
							window.location.reload();
						});
					},
					destroyed: function() {
						window.location.reload();
					}
				});
		});
	}});

	// Start and join room automatically.
	$('#username').val('livestream');
	$('#start').click();
	setTimeout(function () {
		$('#register').click();
	}, 1000);
});

function checkEnter(field, event) {
	var theCode = event.keyCode ? event.keyCode : event.which ? event.which : event.charCode;
	if(theCode == 13) {
		registerUsername();
		return false;
	} else {
		return true;
	}
}

function registerUsername() {
	if($('#username').length === 0) {
		// Create fields to register
		$('#register').click(registerUsername);
		$('#username').focus();
	} else {
		// Try a registration
		$('#username').attr('disabled', true);
		$('#register').attr('disabled', true).unbind('click');
		var username = $('#username').val();
		if(username === "") {
			$('#you')
				.removeClass().addClass('label label-warning')
				.html("Insert your display name (e.g., pippo)");
			$('#username').removeAttr('disabled');
			$('#register').removeAttr('disabled').click(registerUsername);
			return;
		}
		if(/[^a-zA-Z0-9]/.test(username)) {
			$('#you')
				.removeClass().addClass('label label-warning')
				.html('Input is not alphanumeric');
			$('#username').removeAttr('disabled').val("");
			$('#register').removeAttr('disabled').click(registerUsername);
			return;
		}
		var register = {
			request: "join",
			room: myroom,
			ptype: "publisher",
			display: username
		};
		myusername = username;
		sfutest.send({ message: register });
	}
}

function publishOwnFeed(useAudio) {
	// Publish our stream
	$('#publish').attr('disabled', true).unbind('click');
	sfutest.createOffer(
		{
			// Add data:true here if you want to publish datachannels as well
			media: { audioRecv: false, videoRecv: false, audioSend: useAudio, videoSend: true },	// Publishers are sendonly
			// If you want to test simulcasting (Chrome and Firefox only), then
			// pass a ?simulcast=true when opening this demo page: it will turn
			// the following 'simulcast' property to pass to janus.js to true
			simulcast: doSimulcast,
			simulcast2: doSimulcast2,
			success: function(jsep) {
				Janus.debug("Got publisher SDP!", jsep);
				var publish = { request: "configure", audio: useAudio, video: true };
				// You can force a specific codec to use when publishing by using the
				// audiocodec and videocodec properties, for instance:
				// 		publish["audiocodec"] = "opus"
				// to force Opus as the audio codec to use, or:
				// 		publish["videocodec"] = "vp9"
				// to force VP9 as the videocodec to use. In both case, though, forcing
				// a codec will only work if: (1) the codec is actually in the SDP (and
				// so the browser supports it), and (2) the codec is in the list of
				// allowed codecs in a room. With respect to the point (2) above,
				// refer to the text in janus.plugin.videoroom.jcfg for more details
				sfutest.send({ message: publish, jsep: jsep });
			},
			error: function(error) {
				Janus.error("WebRTC error:", error);
				if(useAudio) {
					 publishOwnFeed(false);
				} else {
					bootbox.alert("WebRTC error... " + error.message);
					$('#publish').removeAttr('disabled').click(function() { publishOwnFeed(true); });
				}
			}
		});
}

function toggleMute() {
	var muted = sfutest.isAudioMuted();
	Janus.log((muted ? "Unmuting" : "Muting") + " local stream...");
	if(muted)
		sfutest.unmuteAudio();
	else
		sfutest.muteAudio();
	muted = sfutest.isAudioMuted();
	$('#mute').html(muted ? "Unmute" : "Mute");
}

function unpublishOwnFeed() {
	// Unpublish our stream
	$('#unpublish').attr('disabled', true).unbind('click');
	var unpublish = { request: "unpublish" };
	sfutest.send({ message: unpublish });
}

function newRemoteFeed(id, display, audio, video) {
	// A new feed has been published, create a new plugin handle and attach to it as a subscriber
	var remoteFeed = null;
	janus.attach(
		{
			plugin: "janus.plugin.videoroom",
			opaqueId: opaqueId,
			success: function(pluginHandle) {
				remoteFeed = pluginHandle;
				remoteFeed.simulcastStarted = false;
				Janus.log("Plugin attached! (" + remoteFeed.getPlugin() + ", id=" + remoteFeed.getId() + ")");
				Janus.log("  -- This is a subscriber");
				// We wait for the plugin to send us an offer
				var subscribe = {
					request: "join",
					room: myroom,
					ptype: "subscriber",
					feed: id,
					private_id: mypvtid
				};
				// In case you don't want to receive audio, video or data, even if the
				// publisher is sending them, set the 'offer_audio', 'offer_video' or
				// 'offer_data' properties to false (they're true by default), e.g.:
				// 		subscribe["offer_video"] = false;
				// For example, if the publisher is VP8 and this is Safari, let's avoid video
				if(Janus.webRTCAdapter.browserDetails.browser === "safari" &&
						(video === "vp9" || (video === "vp8" && !Janus.safariVp8))) {
					if(video)
						video = video.toUpperCase()
					toastr.warning("Publisher is using " + video + ", but Safari doesn't support it: disabling video");
					subscribe["offer_video"] = false;
				}
				remoteFeed.videoCodec = video;
				remoteFeed.send({ message: subscribe });
			},
			error: function(error) {
				Janus.error("  -- Error attaching plugin...", error);
				bootbox.alert("Error attaching plugin... " + error);
			},
			onmessage: function(msg, jsep) {
				Janus.debug(" ::: Got a message (subscriber) :::", msg);
				var event = msg["videoroom"];
				Janus.debug("Event: " + event);
				if(msg["error"]) {
					bootbox.alert(msg["error"]);
				} else if(event) {
					if(event === "attached") {
						// Subscriber created and attached
						for(var i=1;i<6;i++) {
							if(!feeds[i]) {
								feeds[i] = remoteFeed;
								remoteFeed.rfindex = i;
								break;
							}
						}
						remoteFeed.rfid = msg["id"];
						remoteFeed.rfdisplay = msg["display"];
						if(!remoteFeed.spinner) {
							var target = document.getElementById('videoremote'+remoteFeed.rfindex);
							remoteFeed.spinner = new Spinner({top:100}).spin(target);
						} else {
							remoteFeed.spinner.spin();
						}
						Janus.log("Successfully attached to feed " + remoteFeed.rfid + " (" + remoteFeed.rfdisplay + ") in room " + msg["room"]);
						$('#remote'+remoteFeed.rfindex).removeClass('hide').html(remoteFeed.rfdisplay).show();
					} else if(event === "event") {
						// Check if we got a simulcast-related event from this publisher
						var substream = msg["substream"];
						var temporal = msg["temporal"];
						if((substream !== null && substream !== undefined) || (temporal !== null && temporal !== undefined)) {
							if(!remoteFeed.simulcastStarted) {
								remoteFeed.simulcastStarted = true;
								// Add some new buttons
								addSimulcastButtons(remoteFeed.rfindex, remoteFeed.videoCodec === "vp8" || remoteFeed.videoCodec === "h264");
							}
							// We just received notice that there's been a switch, update the buttons
							updateSimulcastButtons(remoteFeed.rfindex, substream, temporal);
						}
					} else {
						// What has just happened?
					}
				}
				if(jsep) {
					Janus.debug("Handling SDP as well...", jsep);
					// Answer and attach
					remoteFeed.createAnswer(
						{
							jsep: jsep,
							// Add data:true here if you want to subscribe to datachannels as well
							// (obviously only works if the publisher offered them in the first place)
							media: { audioSend: false, videoSend: false },	// We want recvonly audio/video
							success: function(jsep) {
								Janus.debug("Got SDP!", jsep);
								var body = { request: "start", room: myroom };
								remoteFeed.send({ message: body, jsep: jsep });
							},
							error: function(error) {
								Janus.error("WebRTC error:", error);
								bootbox.alert("WebRTC error... " + error.message);
							}
						});
				}
			},
			iceState: function(state) {
				Janus.log("ICE state of this WebRTC PeerConnection (feed #" + remoteFeed.rfindex + ") changed to " + state);
			},
			webrtcState: function(on) {
				Janus.log("Janus says this WebRTC PeerConnection (feed #" + remoteFeed.rfindex + ") is " + (on ? "up" : "down") + " now");
			},
			onlocalstream: function(stream) {
				// The subscriber stream is recvonly, we don't expect anything here
			},
			onremotestream: function(stream) {
				Janus.debug("Remote feed #" + remoteFeed.rfindex + ", stream:", stream);
				var addButtons = false;
				if($('#remotevideo'+remoteFeed.rfindex).length === 0) {
					addButtons = true;
					// No remote video yet
					$('#videoremote'+remoteFeed.rfindex).append('<video class="rounded centered" id="waitingvideo' + remoteFeed.rfindex + '" width="100%" height="100%" />');
					$('#videoremote'+remoteFeed.rfindex).append('<video class="rounded centered relative hide" id="remotevideo' + remoteFeed.rfindex + '" width="100%" height="100%" autoplay playsinline/>');
					$('#videoremote'+remoteFeed.rfindex).append(
						'<span class="label label-primary hide" id="curres'+remoteFeed.rfindex+'" style="position: absolute; bottom: 0px; left: 0px; margin: 15px;"></span>' +
						'<span class="label label-info hide" id="curbitrate'+remoteFeed.rfindex+'" style="position: absolute; bottom: 0px; right: 0px; margin: 15px;"></span>');
					// Show the video, hide the spinner and show the resolution when we get a playing event
					$("#remotevideo"+remoteFeed.rfindex).bind("playing", function () {
						if(remoteFeed.spinner)
							remoteFeed.spinner.stop();
						remoteFeed.spinner = null;
						$('#waitingvideo'+remoteFeed.rfindex).remove();
						if(this.videoWidth)
							$('#remotevideo'+remoteFeed.rfindex).removeClass('hide').show();
						var width = this.videoWidth;
						var height = this.videoHeight;
						$('#curres'+remoteFeed.rfindex).removeClass('hide').text(width+'x'+height).show();
						if(Janus.webRTCAdapter.browserDetails.browser === "firefox") {
							// Firefox Stable has a bug: width and height are not immediately available after a playing
							setTimeout(function() {
								var width = $("#remotevideo"+remoteFeed.rfindex).get(0).videoWidth;
								var height = $("#remotevideo"+remoteFeed.rfindex).get(0).videoHeight;
								$('#curres'+remoteFeed.rfindex).removeClass('hide').text(width+'x'+height).show();
							}, 2000);
						}
					});
				}
				Janus.attachMediaStream($('#remotevideo'+remoteFeed.rfindex).get(0), stream);
				var videoTracks = stream.getVideoTracks();
				if(!videoTracks || videoTracks.length === 0) {
					// No remote video
					$('#remotevideo'+remoteFeed.rfindex).hide();
					if($('#videoremote'+remoteFeed.rfindex + ' .no-video-container').length === 0) {
						$('#videoremote'+remoteFeed.rfindex).append(
							'<div class="no-video-container">' +
								'<i class="fa fa-video-camera fa-5 no-video-icon"></i>' +
								'<span class="no-video-text">No remote video available</span>' +
							'</div>');
					}
				} else {
					$('#videoremote'+remoteFeed.rfindex+ ' .no-video-container').remove();
					$('#remotevideo'+remoteFeed.rfindex).removeClass('hide').show();
				}
				if(!addButtons)
					return;
				if(Janus.webRTCAdapter.browserDetails.browser === "chrome" || Janus.webRTCAdapter.browserDetails.browser === "firefox" ||
						Janus.webRTCAdapter.browserDetails.browser === "safari") {
					$('#curbitrate'+remoteFeed.rfindex).removeClass('hide').show();
					bitrateTimer[remoteFeed.rfindex] = setInterval(function() {
						// Display updated bitrate, if supported
						var bitrate = remoteFeed.getBitrate();
						$('#curbitrate'+remoteFeed.rfindex).text(bitrate);
						// Check if the resolution changed too
						var width = $("#remotevideo"+remoteFeed.rfindex).get(0).videoWidth;
						var height = $("#remotevideo"+remoteFeed.rfindex).get(0).videoHeight;
						if(width > 0 && height > 0)
							$('#curres'+remoteFeed.rfindex).removeClass('hide').text(width+'x'+height).show();
					}, 1000);
				}
			},
			oncleanup: function() {
				Janus.log(" ::: Got a cleanup notification (remote feed " + id + ") :::");
				if(remoteFeed.spinner)
					remoteFeed.spinner.stop();
				remoteFeed.spinner = null;
				$('#remotevideo'+remoteFeed.rfindex).remove();
				$('#waitingvideo'+remoteFeed.rfindex).remove();
				$('#novideo'+remoteFeed.rfindex).remove();
				$('#curbitrate'+remoteFeed.rfindex).remove();
				$('#curres'+remoteFeed.rfindex).remove();
				if(bitrateTimer[remoteFeed.rfindex])
					clearInterval(bitrateTimer[remoteFeed.rfindex]);
				bitrateTimer[remoteFeed.rfindex] = null;
				remoteFeed.simulcastStarted = false;
				$('#simulcast'+remoteFeed.rfindex).remove();
			}
		});
}

// Helper to parse query string
function getQueryStringValue(name) {
	name = name.replace(/[\[]/, "\\[").replace(/[\]]/, "\\]");
	var regex = new RegExp("[\\?&]" + name + "=([^&#]*)"),
		results = regex.exec(location.search);
	return results === null ? "" : decodeURIComponent(results[1].replace(/\+/g, " "));
}

// Helpers to create Simulcast-related UI, if enabled
function addSimulcastButtons(feed, temporal) {
	var index = feed;
	$('#remote'+index).parent().append(
		'<div id="simulcast'+index+'" class="btn-group-vertical btn-group-vertical-xs pull-right">' +
		'	<div class"row">' +
		'		<div class="btn-group btn-group-xs" style="width: 100%">' +
		'			<button id="sl'+index+'-2" type="button" class="btn btn-primary" data-toggle="tooltip" title="Switch to higher quality" style="width: 33%">SL 2</button>' +
		'			<button id="sl'+index+'-1" type="button" class="btn btn-primary" data-toggle="tooltip" title="Switch to normal quality" style="width: 33%">SL 1</button>' +
		'			<button id="sl'+index+'-0" type="button" class="btn btn-primary" data-toggle="tooltip" title="Switch to lower quality" style="width: 34%">SL 0</button>' +
		'		</div>' +
		'	</div>' +
		'	<div class"row">' +
		'		<div class="btn-group btn-group-xs hide" style="width: 100%">' +
		'			<button id="tl'+index+'-2" type="button" class="btn btn-primary" data-toggle="tooltip" title="Cap to temporal layer 2" style="width: 34%">TL 2</button>' +
		'			<button id="tl'+index+'-1" type="button" class="btn btn-primary" data-toggle="tooltip" title="Cap to temporal layer 1" style="width: 33%">TL 1</button>' +
		'			<button id="tl'+index+'-0" type="button" class="btn btn-primary" data-toggle="tooltip" title="Cap to temporal layer 0" style="width: 33%">TL 0</button>' +
		'		</div>' +
		'	</div>' +
		'</div>'
	);
	// Enable the simulcast selection buttons
	$('#sl' + index + '-0').removeClass('btn-primary btn-success').addClass('btn-primary')
		.unbind('click').click(function() {
			toastr.info("Switching simulcast substream, wait for it... (lower quality)", null, {timeOut: 2000});
			if(!$('#sl' + index + '-2').hasClass('btn-success'))
				$('#sl' + index + '-2').removeClass('btn-primary btn-info').addClass('btn-primary');
			if(!$('#sl' + index + '-1').hasClass('btn-success'))
				$('#sl' + index + '-1').removeClass('btn-primary btn-info').addClass('btn-primary');
			$('#sl' + index + '-0').removeClass('btn-primary btn-info btn-success').addClass('btn-info');
			feeds[index].send({ message: { request: "configure", substream: 0 }});
		});
	$('#sl' + index + '-1').removeClass('btn-primary btn-success').addClass('btn-primary')
		.unbind('click').click(function() {
			toastr.info("Switching simulcast substream, wait for it... (normal quality)", null, {timeOut: 2000});
			if(!$('#sl' + index + '-2').hasClass('btn-success'))
				$('#sl' + index + '-2').removeClass('btn-primary btn-info').addClass('btn-primary');
			$('#sl' + index + '-1').removeClass('btn-primary btn-info btn-success').addClass('btn-info');
			if(!$('#sl' + index + '-0').hasClass('btn-success'))
				$('#sl' + index + '-0').removeClass('btn-primary btn-info').addClass('btn-primary');
			feeds[index].send({ message: { request: "configure", substream: 1 }});
		});
	$('#sl' + index + '-2').removeClass('btn-primary btn-success').addClass('btn-primary')
		.unbind('click').click(function() {
			toastr.info("Switching simulcast substream, wait for it... (higher quality)", null, {timeOut: 2000});
			$('#sl' + index + '-2').removeClass('btn-primary btn-info btn-success').addClass('btn-info');
			if(!$('#sl' + index + '-1').hasClass('btn-success'))
				$('#sl' + index + '-1').removeClass('btn-primary btn-info').addClass('btn-primary');
			if(!$('#sl' + index + '-0').hasClass('btn-success'))
				$('#sl' + index + '-0').removeClass('btn-primary btn-info').addClass('btn-primary');
			feeds[index].send({ message: { request: "configure", substream: 2 }});
		});
	if(!temporal)	// No temporal layer support
		return;
	$('#tl' + index + '-0').parent().removeClass('hide');
	$('#tl' + index + '-0').removeClass('btn-primary btn-success').addClass('btn-primary')
		.unbind('click').click(function() {
			toastr.info("Capping simulcast temporal layer, wait for it... (lowest FPS)", null, {timeOut: 2000});
			if(!$('#tl' + index + '-2').hasClass('btn-success'))
				$('#tl' + index + '-2').removeClass('btn-primary btn-info').addClass('btn-primary');
			if(!$('#tl' + index + '-1').hasClass('btn-success'))
				$('#tl' + index + '-1').removeClass('btn-primary btn-info').addClass('btn-primary');
			$('#tl' + index + '-0').removeClass('btn-primary btn-info btn-success').addClass('btn-info');
			feeds[index].send({ message: { request: "configure", temporal: 0 }});
		});
	$('#tl' + index + '-1').removeClass('btn-primary btn-success').addClass('btn-primary')
		.unbind('click').click(function() {
			toastr.info("Capping simulcast temporal layer, wait for it... (medium FPS)", null, {timeOut: 2000});
			if(!$('#tl' + index + '-2').hasClass('btn-success'))
				$('#tl' + index + '-2').removeClass('btn-primary btn-info').addClass('btn-primary');
			$('#tl' + index + '-1').removeClass('btn-primary btn-info').addClass('btn-info');
			if(!$('#tl' + index + '-0').hasClass('btn-success'))
				$('#tl' + index + '-0').removeClass('btn-primary btn-info').addClass('btn-primary');
			feeds[index].send({ message: { request: "configure", temporal: 1 }});
		});
	$('#tl' + index + '-2').removeClass('btn-primary btn-success').addClass('btn-primary')
		.unbind('click').click(function() {
			toastr.info("Capping simulcast temporal layer, wait for it... (highest FPS)", null, {timeOut: 2000});
			$('#tl' + index + '-2').removeClass('btn-primary btn-info btn-success').addClass('btn-info');
			if(!$('#tl' + index + '-1').hasClass('btn-success'))
				$('#tl' + index + '-1').removeClass('btn-primary btn-info').addClass('btn-primary');
			if(!$('#tl' + index + '-0').hasClass('btn-success'))
				$('#tl' + index + '-0').removeClass('btn-primary btn-info').addClass('btn-primary');
			feeds[index].send({ message: { request: "configure", temporal: 2 }});
		});
}

function updateSimulcastButtons(feed, substream, temporal) {
	// Check the substream
	var index = feed;
	if(substream === 0) {
		toastr.success("Switched simulcast substream! (lower quality)", null, {timeOut: 2000});
		$('#sl' + index + '-2').removeClass('btn-primary btn-success').addClass('btn-primary');
		$('#sl' + index + '-1').removeClass('btn-primary btn-success').addClass('btn-primary');
		$('#sl' + index + '-0').removeClass('btn-primary btn-info btn-success').addClass('btn-success');
	} else if(substream === 1) {
		toastr.success("Switched simulcast substream! (normal quality)", null, {timeOut: 2000});
		$('#sl' + index + '-2').removeClass('btn-primary btn-success').addClass('btn-primary');
		$('#sl' + index + '-1').removeClass('btn-primary btn-info btn-success').addClass('btn-success');
		$('#sl' + index + '-0').removeClass('btn-primary btn-success').addClass('btn-primary');
	} else if(substream === 2) {
		toastr.success("Switched simulcast substream! (higher quality)", null, {timeOut: 2000});
		$('#sl' + index + '-2').removeClass('btn-primary btn-info btn-success').addClass('btn-success');
		$('#sl' + index + '-1').removeClass('btn-primary btn-success').addClass('btn-primary');
		$('#sl' + index + '-0').removeClass('btn-primary btn-success').addClass('btn-primary');
	}
	// Check the temporal layer
	if(temporal === 0) {
		toastr.success("Capped simulcast temporal layer! (lowest FPS)", null, {timeOut: 2000});
		$('#tl' + index + '-2').removeClass('btn-primary btn-success').addClass('btn-primary');
		$('#tl' + index + '-1').removeClass('btn-primary btn-success').addClass('btn-primary');
		$('#tl' + index + '-0').removeClass('btn-primary btn-info btn-success').addClass('btn-success');
	} else if(temporal === 1) {
		toastr.success("Capped simulcast temporal layer! (medium FPS)", null, {timeOut: 2000});
		$('#tl' + index + '-2').removeClass('btn-primary btn-success').addClass('btn-primary');
		$('#tl' + index + '-1').removeClass('btn-primary btn-info btn-success').addClass('btn-success');
		$('#tl' + index + '-0').removeClass('btn-primary btn-success').addClass('btn-primary');
	} else if(temporal === 2) {
		toastr.success("Capped simulcast temporal layer! (highest FPS)", null, {timeOut: 2000});
		$('#tl' + index + '-2').removeClass('btn-primary btn-info btn-success').addClass('btn-success');
		$('#tl' + index + '-1').removeClass('btn-primary btn-success').addClass('btn-primary');
		$('#tl' + index + '-0').removeClass('btn-primary btn-success').addClass('btn-primary');
	}
}