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www.franconian.net/static/kevin-master/index.html

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Add KEVIN with custom STUN/TURN server
2021-12-11 23:51:33 +01:00
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0, shrink-to-fit=no">
<title>Home - KEVIN</title>
Fix base URL for KEVIN
2021-12-11 23:56:02 +01:00
<base href="/kevin-master">
Add KEVIN with custom STUN/TURN server
2021-12-11 23:51:33 +01:00
<link rel="stylesheet" href="assets/bootstrap/css/bootstrap.min.css?h=5d0606363cf6affbcda5495e4fefc96c">
<link rel="stylesheet" href="assets/fonts/Lato.css">
<link rel="stylesheet" href="assets/fonts/font-awesome.min.css?h=9db842b3dc3336737559eb4abc0f1b3d">
<link rel="stylesheet" href="assets/fonts/material-icons.min.css?h=9db842b3dc3336737559eb4abc0f1b3d">
<link rel="stylesheet" href="assets/fonts/simple-line-icons.min.css?h=9db842b3dc3336737559eb4abc0f1b3d">
<link rel="stylesheet" href="assets/css/animate.css">
</head>
<body>
<nav id="nav" class="navbar navbar-light navbar-expand bg-light navigation-clean">
<div class="container"><a class="navbar-brand" href="/">KEVIN</a><button data-toggle="collapse" class="navbar-toggler" data-target="#navcol-1"></button>
<div class="collapse navbar-collapse" id="navcol-1"></div>
</div>
</nav>
<section class="features-icons bg-light text-center">
<div class="container">
<div class="row" id="header">
<div class="col-lg-4">
<div class="mx-auto features-icons-item mb-5 mb-lg-0 mb-lg-3">
<div class="d-flex features-icons-icon" id="open-room"><i class="material-icons m-auto text-primary" data-bs-hover-animate="pulse">group_add</i></div>
<h3>Group Chat</h3>
<p class="lead mb-0">Create a Group Chat with several people</p>
</div>
</div>
<div class="col-lg-4">
<div class="mx-auto features-icons-item mb-5 mb-lg-0 mb-lg-3">
<div class="d-flex features-icons-icon"><i class="icon-camrecorder m-auto text-primary" data-toggle="modal" data-target="#preview-webcam" data-bs-hover-animate="pulse"></i></div>
<h3>Share Webcam</h3>
<p class="lead mb-0">Share your Webcam + Audio</p>
</div>
</div>
<div class="col-lg-4">
<div class="mx-auto features-icons-item mb-5 mb-lg-0 mb-lg-3">
<div class="d-flex features-icons-icon" id="screen-share"><i class="icon-screen-desktop m-auto text-primary" data-bs-hover-animate="pulse"></i></div>
<h3>Share Screen</h3>
<p class="lead mb-0">Share your Screen</p>
</div>
</div>
</div>
<div class="row">
<div class="col-auto align-self-center mx-auto">
<div id="videos-container" style="margin: 20px 0;"></div>
</div>
</div>
<div class="row">
<div class="col-auto align-self-center mx-auto">
<div id="videos-container"></div>
<div id="room-urls" style="display: none;background: #F1EDED;border: 1px solid rgb(189, 189, 189);border-left: 0;border-right: 0;margin: 10px;"></div>
<input type="text" id="room-id" value="abcdef" autocorrect=off autocapitalize=off size=20 style="display: none;">
</div>
</div>
<div class="row">
<div class="col-auto align-self-center mx-auto">
<label id="record"><input type="checkbox" id="record-entire-conference">Record?</label>
</div>
</div>
<div class="row">
<div class="col-lg-4 align-self-center mx-auto">
<span id="recording-status" style="display: none;"></span>
</div>
<div class="col-lg-4 align-self-center mx-auto">
<span id="recording-time" style="display: none;"></span>
</div>
<div class="col-lg-4 align-self-center mx-auto">
<button class="btn btn-primary" id="btn-stop-recording" style="display: none;" type="button">Stop Recording</button>
</div>
</div>
</div>
</section>
<div class="modal fade" id="preview-webcam" tabindex="-1" aria-labelledby="preview-webcam-label" aria-hidden="true">
<div class="modal-dialog modal-xl">
<div class="modal-content">
<div class="modal-header">
<h5 class="modal-title" id="preview-webcam-label">Preview</h5>
<button type="button" class="close" data-dismiss="modal" aria-label="Close">
<span aria-hidden="true">&times;</span>
</button>
</div>
<div class="modal-body">
<div id="container-preview" style="margin: 0px auto;width: 100%;">
<div class="d-flex justify-content-center">
<video playsinline autoplay id="videoPreview" width="640"></video>
</div>
<div class="d-flex justify-content-center">
<label for="videoSource" style="margin-top: 5px;">Video source: </label><select id="videoSource"></select>
<label for="audioSource" style="margin-top: 5px;margin-left: 10px;">Audio source: </label><select id="audioSource"></select>
</div>
<div class="d-flex justify-content-center">
<canvas width="320px" height="30px" id="vumeter" style="background-color: black;"></canvas>
</div>
</div>
</div>
<div class="modal-footer">
<button type="button" class="btn btn-secondary" data-dismiss="modal">Close</button>
<button type="button" class="btn btn-primary" id="webcam-share">Start</button>
</div>
</div>
</div>
</div>
<footer class="footer bg-light">
<div class="container">
<div class="row" id="footer">
<div class="col-lg-6 my-auto h-100 text-center text-lg-left">
<ul class="list-inline mb-2"></ul>
<p class="text-muted small mb-4 mb-lg-0">rC3 Edition</p>
</div>
<div class="col-lg-6 my-auto h-100 text-center text-lg-right">
<ul class="list-inline mb-0">
<li class="list-inline-item"><a href="#"></a></li>
<li class="list-inline-item"><a href="#"></a></li>
<li class="list-inline-item"><a href="https://github.com/voc/kevin"><i class="fa fa-github fa-2x fa-fw"></i></a></li>
</ul>
</div>
</div>
</div>
</footer>
<script src="assets/js/jquery.min.js?h=89312d34339dcd686309fe284b3f226f"></script>
<script src="assets/bootstrap/js/bootstrap.min.js?h=03ab36d1dde930b7d44a712f19075641"></script>
<script src="assets/js/script.min.js?h=84a111365b31658389bfd638cc1392eb"></script>
<script src="assets/js/RTCMultiConnection.js"></script>
<script src="assets/js/adapter.js"></script>
<script src="/socket.io/socket.io.js"></script>
<link rel="stylesheet" href="assets/css/getHTMLMediaElement.css">
<script src="assets/js/getHTMLMediaElement.js"></script>
<script src="assets/js/RecordRTC.js"></script>
<script>
// ......................................................
// .......................UI Code........................
// ......................................................
document.getElementById('open-room').onclick = function() {
window.addEventListener('beforeunload', function (e) {
e.preventDefault();
e.returnValue = '';
});
disableInputButtons();
connection.open(document.getElementById('room-id').value, function(isRoomExist, roomid, error) {
if(error) {
disableInputButtons(true);
alert(error);
}
else if (connection.isInitiator === true) {
showRoomURL(roomid);
}
});
};
document.getElementById('webcam-share').onclick = function() {
window.addEventListener('beforeunload', function (e) {
e.preventDefault();
e.returnValue = '';
});
disableInputButtons();
connection.sdpConstraints.mandatory = {
OfferToReceiveAudio: true,
OfferToReceiveVideo: true
};
connection.session = {
audio: true,
video: true,
oneway: true
};
const audioInputSelect = document.querySelector('select#audioSource');
const videoSelect = document.querySelector('select#videoSource');
const audioSource = audioInputSelect.value;
const videoSource = videoSelect.value;
connection.mediaConstraints.audio = {
deviceId: audioSource
};
connection.mediaConstraints.video = {
deviceId: videoSource
};
connection.open(document.getElementById('room-id').value, function(isRoomExist, roomid, error) {
if(error) {
disableInputButtons(true);
alert(error);
}
else if (connection.isInitiator === true) {
showRoomURL(roomid);
}
});
params.source = 'webcam';
};
document.getElementById('screen-share').onclick = function() {
window.addEventListener('beforeunload', function (e) {
e.preventDefault();
e.returnValue = '';
});
disableInputButtons();
connection.sdpConstraints.mandatory = {
OfferToReceiveAudio: false,
OfferToReceiveVideo: false
};
connection.session = {
screen: true,
oneway: true
};
connection.open(document.getElementById('room-id').value, function(isRoomExist, roomid, error) {
if(error) {
disableInputButtons(true);
alert(error);
}
else if (connection.isInitiator === true) {
showRoomURL(roomid);
}
});
params.source = 'screen';
};
// ......................................................
// ..................RTCMultiConnection Code.............
// ......................................................
var connection = new RTCMultiConnection();
connection.socketURL = 'https://kevin.c3voc.de/';
connection.socketMessageEvent = 'rC3-VOCcast';
connection.session = {
audio: true,
video: true,
//oneway: true
};
connection.sdpConstraints.mandatory = {
OfferToReceiveAudio: true,
OfferToReceiveVideo: true
};
// STAR_FIX_VIDEO_AUTO_PAUSE_ISSUES
// via: https://github.com/muaz-khan/RTCMultiConnection/issues/778#issuecomment-524853468
var bitrates = 512;
var resolutions = 'Ultra-HD';
var videoConstraints = {};
if (resolutions == 'HD') {
videoConstraints = {
width: {
ideal: 1280
},
height: {
ideal: 720
},
frameRate: 30
};
}
if (resolutions == 'Ultra-HD') {
videoConstraints = {
width: {
ideal: 1920
},
height: {
ideal: 1080
},
frameRate: 30
};
}
connection.mediaConstraints = {
video: videoConstraints,
audio: true
};
var CodecsHandler = connection.CodecsHandler;
connection.processSdp = function(sdp) {
var codecs = 'vp8';
if (codecs.length) {
sdp = CodecsHandler.preferCodec(sdp, codecs.toLowerCase());
}
if (resolutions == 'HD') {
sdp = CodecsHandler.setApplicationSpecificBandwidth(sdp, {
audio: 128,
video: bitrates,
screen: bitrates
});
sdp = CodecsHandler.setVideoBitrates(sdp, {
min: bitrates * 8 * 1024,
max: bitrates * 8 * 1024,
});
}
if (resolutions == 'Ultra-HD') {
sdp = CodecsHandler.setApplicationSpecificBandwidth(sdp, {
audio: 128,
video: bitrates,
screen: bitrates
});
sdp = CodecsHandler.setVideoBitrates(sdp, {
min: bitrates * 8 * 1024,
max: bitrates * 8 * 1024,
});
}
return sdp;
};
// END_FIX_VIDEO_AUTO_PAUSE_ISSUES
connection.iceServers = [];
connection.iceServers.push({
'urls': 'stun:stun.franconian.net:3478',
});
connection.iceServers.push({
'urls': 'turn:stun.franconian.net:3478',
'credential': 'ec0WlmT6lj0p4ou8XFAV66nTDopm9JPra3TnIIkxUM1VaqwAzTtoFqbXVeOoFsdU',
'username': 'turnuser',
});
connection.videosContainer = document.getElementById('videos-container');
connection.onstream = function(event) {
var existing = document.getElementById(event.streamid);
if(existing && existing.parentNode) {
existing.parentNode.removeChild(existing);
}
event.mediaElement.removeAttribute('src');
event.mediaElement.removeAttribute('srcObject');
event.mediaElement.muted = true;
event.mediaElement.volume = 0;
var video = document.createElement('video');
try {
video.setAttributeNode(document.createAttribute('autoplay'));
video.setAttributeNode(document.createAttribute('playsinline'));
} catch (e) {
video.setAttribute('autoplay', true);
video.setAttribute('playsinline', true);
}
if(event.type === 'local') {
video.volume = 0;
try {
video.setAttributeNode(document.createAttribute('muted'));
} catch (e) {
video.setAttribute('muted', true);
}
}
video.srcObject = event.stream;
if (params.action && params.action == 'view') {
var width = params.width;
var mediaElement = getHTMLMediaElement(video, {
buttons: [''],
width: width,
showOnMouseEnter: false
});
}
else if (params.source && params.source == 'webcam') {
try {
video.setAttributeNode(document.createAttribute('controls'));
} catch (e) {
video.setAttribute('controls', true);
}
var mediaElement = getHTMLMediaElement(video, {
buttons: ['full-screen'],
showOnMouseEnter: true
});
}
else if (params.source && params.source == 'screen') {
var mediaElement = getHTMLMediaElement(video, {
buttons: ['full-screen'],
showOnMouseEnter: true
});
}
else {
var width = parseInt(connection.videosContainer.clientWidth / 3) - 20;
var mediaElement = getHTMLMediaElement(video, {
title: event.userid,
buttons: ['full-screen'],
width: width,
showOnMouseEnter: true
});
}
connection.videosContainer.appendChild(mediaElement);
setTimeout(function() {
mediaElement.media.play();
}, 5000);
mediaElement.id = event.streamid;
console.log('sessionid: ' + connection.sessionid);
// to keep room-id in cache
//localStorage.setItem(connection.socketMessageEvent, connection.sessionid);
function calculateTimeDuration(secs) {
var hr = Math.floor(secs / 3600);
var min = Math.floor((secs - (hr * 3600)) / 60);
var sec = Math.floor(secs - (hr * 3600) - (min * 60));
if (min < 10) {
min = "0" + min;
}
if (sec < 10) {
sec = "0" + sec;
}
if(hr <= 0) {
return min + ':' + sec;
}
return hr + ':' + min + ':' + sec;
}
chkRecordConference.parentNode.style.display = 'none';
if(chkRecordConference.checked === true) {
btnStopRecording.style.display = 'inline-block';
recordingStatus.style.display = 'inline-block';
recordingtime.style.display = 'inline-block';
var recorder = connection.recorder;
if(!recorder) {
recorder = RecordRTC([event.stream], {
type: 'video',
disableLogs: false,
video: {
width: 1920,
height: 1080
}
});
recorder.startRecording();
dateStarted = new Date().getTime();
connection.recorder = recorder;
}
else {
recorder.getInternalRecorder().addStreams([event.stream]);
}
if(!connection.recorder.streams) {
connection.recorder.streams = [];
}
connection.recorder.streams.push(event.stream);
recordingStatus.innerHTML = 'Recording ' + connection.recorder.streams.length + ' streams';
(function looper() {
if(!recorder) {
return;
}
recordingtime.innerHTML = 'Recording Duration: ' + calculateTimeDuration((new Date().getTime() - dateStarted) / 1000);
setTimeout(looper, 1000);
})();
}
if(event.type === 'local') {
connection.socket.on('disconnect', function() {
if(!connection.getAllParticipants().length) {
location.reload();
}
});
}
};
var recordingtime = document.getElementById('recording-time');
var recordingStatus = document.getElementById('recording-status');
var chkRecordConference = document.getElementById('record-entire-conference');
var btnStopRecording = document.getElementById('btn-stop-recording');
btnStopRecording.onclick = function() {
var recorder = connection.recorder;
if(!recorder) return alert('No recorder found.');
recorder.stopRecording(function() {
var blob = recorder.getBlob();
invokeSaveAsDialog(blob);
connection.recorder = null;
btnStopRecording.style.display = 'none';
recordingStatus.style.display = 'none';
chkRecordConference.parentNode.style.display = 'none';
recordingtime.style.display = 'none';
});
};
connection.onstreamended = function(event) {
var mediaElement = document.getElementById(event.streamid);
if (mediaElement) {
mediaElement.parentNode.removeChild(mediaElement);
}
};
connection.onMediaError = function(e) {
if (e.message === 'Concurrent mic process limit.') {
if (DetectRTC.audioInputDevices.length <= 1) {
alert('Please select external microphone. Check github issue number 483.');
return;
}
var secondaryMic = DetectRTC.audioInputDevices[1].deviceId;
connection.mediaConstraints.audio = {
deviceId: secondaryMic
};
connection.join(connection.sessionid);
}
};
// ..................................
// ALL below scripts are redundant!!!
// ..................................
function disableInputButtonsView() {
//document.getElementById('room-id').onkeyup();
document.getElementById('record-entire-conference').style.display = "none";
document.getElementById('record').style.display = "none";
document.getElementById('header').style.display = "none";
document.getElementById('nav').style.display = "none";
document.getElementById('footer').style.display = "none";
document.getElementById('open-room').disabled = true;
document.getElementById('webcam-share').disabled = true;
document.getElementById('screen-share').disabled = true;
document.getElementById('room-id').disabled = true;
}
function disableInputButtons(enable) {
//document.getElementById('room-id').onkeyup();
document.getElementById('record-entire-conference').style.display = "none";
document.getElementById('record').style.display = "none";
document.getElementById('header').style.display = "none";
document.getElementById('open-room').disabled = !enable;
document.getElementById('webcam-share').disabled = !enable;
document.getElementById('screen-share').disabled = !enable;
document.getElementById('room-id').disabled = !enable;
}
// ......................................................
// ......................Handling Room-ID................
// ......................................................
function showRoomURL(roomid, source, width) {
var roomHashURL = '#' + roomid;
var roomQueryStringURL = '?roomid=' + roomid;
var roomViewQueryStringURL = '?action=view&roomid=' + roomid;
var html = '<h3>Share URLs:</h3><br>';
//html += 'Hash URL: <a href="' + roomHashURL + '" target="_blank">' + roomHashURL + '</a>';
//html += '<br>';
if (source == 'group') {
html += 'Join URL: <a href="' + roomQueryStringURL + '" target="_blank">' + roomQueryStringURL + '</a>';
html += '<br />';
}
html += 'View URL: <a href="' + roomViewQueryStringURL + '" target="_blank">' + roomViewQueryStringURL + '</a>';
html += '<br />';
html += 'View URL OBS (360p): <a href="view.html' + roomViewQueryStringURL + '&width=640" target="_blank">view.html' + roomViewQueryStringURL + '&width=640</a>';
html += '<br />';
html += 'View URL OBS (720p): <a href="view.html' + roomViewQueryStringURL + '&width=1280" target="_blank">view.html' + roomViewQueryStringURL + '&width=1280</a>';
html += '<br />';
html += 'View URL OBS (1080p): <a href="view.html' + roomViewQueryStringURL + '&width=1920" target="_blank">view.html' + roomViewQueryStringURL + '&width=1920</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;
console.log(params);
})();
function genID() {
var chars = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ';
var idsize = 8;
var streamid = '';
for (var i = 0; i < idsize; i++) {
streamid += chars.charAt(Math.floor(Math.random() * chars.length));
}
return streamid;
}
var roomid = '';
//if (localStorage.getItem(connection.socketMessageEvent)) {
// roomid = localStorage.getItem(connection.socketMessageEvent);
//} else {
// roomid = genID();
// console.log('roomid gen: ' + roomid);
//}
roomid = genID();
console.log('roomid gen: ' + roomid);
var txtRoomId = document.getElementById('room-id');
txtRoomId.value = roomid;
//txtRoomId.onkeyup = txtRoomId.oninput = txtRoomId.onpaste = function() {
// localStorage.setItem(connection.socketMessageEvent, document.getElementById('room-id').value);
//};
var hashString = location.hash.replace('#', '');
if (hashString.length && hashString.indexOf('comment-') == 0) {
hashString = '';
}
var roomid = params.roomid;
if (!roomid && hashString.length) {
roomid = hashString;
}
var action = params.action
if (roomid && roomid.length) {
document.getElementById('room-id').value = roomid;
//localStorage.setItem(connection.socketMessageEvent, roomid);
if (action && action == 'join') {
connection.join(roomid);
}
// auto-join-room
(function reCheckRoomPresence() {
connection.checkPresence(roomid, function(isRoomExist) {
if (isRoomExist) {
if (action && action == 'view') {
connection.sdpConstraints.mandatory = {
OfferToReceiveAudio: true,
OfferToReceiveVideo: true
};
connection.session = {
audio: true,
video: true,
oneway: true
};
connection.join(roomid);
disableInputButtonsView();
return;
} else {
connection.openOrJoin(roomid);
return;
}
}
setTimeout(reCheckRoomPresence, 5000);
});
})();
disableInputButtons();
}
// detect 2G
if(navigator.connection &&
navigator.connection.type === 'cellular' &&
navigator.connection.downlinkMax <= 0.115) {
alert('2G is not supported. Please use a better internet service.');
}
$(document).ready(function(){
$('#preview-webcam').on('shown.bs.modal', function (e) {
console.log('starting preview');
const videoElement = document.querySelector('#videoPreview');
const audioInputSelect = document.querySelector('select#audioSource');
const videoSelect = document.querySelector('select#videoSource');
const selectors = [audioInputSelect, videoSelect];
function gotDevices(deviceInfos) {
const values = selectors.map(select => select.value);
selectors.forEach(select => {
while (select.firstChild) {
select.removeChild(select.firstChild);
}
});
for (let i = 0; i !== deviceInfos.length; ++i) {
const deviceInfo = deviceInfos[i];
const option = document.createElement('option');
option.value = deviceInfo.deviceId;
if (deviceInfo.kind === 'audioinput') {
option.text = deviceInfo.label || `microphone ${audioInputSelect.length + 1}`;
audioInputSelect.appendChild(option);
} else if (deviceInfo.kind === 'videoinput') {
option.text = deviceInfo.label || `camera ${videoSelect.length + 1}`;
videoSelect.appendChild(option);
} else {
console.log('Some other kind of source/device: ', deviceInfo);
}
}
selectors.forEach((select, selectorIndex) => {
if (Array.prototype.slice.call(select.childNodes).some(n => n.value === values[selectorIndex])) {
select.value = values[selectorIndex];
}
});
}
var max_level_L = 0;
var old_level_L = 0;
var cnvs = document.getElementById("vumeter");
var cnvs_cntxt = cnvs.getContext("2d");
function gotStream(stream) {
window.stream = stream;
videoElement.srcObject = stream;
var audioContext = new AudioContext();
var microphone = audioContext.createMediaStreamSource(stream);
var javascriptNode = audioContext.createScriptProcessor(1024, 1, 1);
microphone.connect(javascriptNode);
javascriptNode.connect(audioContext.destination);
javascriptNode.onaudioprocess = function(event) {
var inpt_L = event.inputBuffer.getChannelData(0);
var instant_L = 0.0;
var sum_L = 0.0;
for(var i = 0; i < inpt_L.length; ++i) {
sum_L += inpt_L[i] * inpt_L[i];
}
instant_L = Math.sqrt(sum_L / inpt_L.length);
max_level_L = Math.max(max_level_L, instant_L);
instant_L = Math.max( instant_L, old_level_L -0.008 );
old_level_L = instant_L;
cnvs_cntxt.clearRect(0, 0, cnvs.width, cnvs.height);
cnvs_cntxt.fillStyle = '#00ff00';
cnvs_cntxt.fillRect(10,10,(cnvs.width-20)*(instant_L/max_level_L),(cnvs.height-20)); // x,y,w,h
}
return navigator.mediaDevices.enumerateDevices();
}
function handleError(error) {
console.log('navigator.MediaDevices.getUserMedia error: ', error.message, error.name);
if (error.name == 'NotAllowedError') {
//document.getElementById('container-preview').style.display = "none";
//document.getElementById('webcam-share').style.display = "none";
alert("No devices found. Please check browser permissions for audio/video devices.");
window.location.href = "index.html";
}
}
function start() {
if (window.stream) {
window.stream.getTracks().forEach(track => {
track.stop();
});
}
const audioSource = audioInputSelect.value;
const videoSource = videoSelect.value;
const constraints = {
audio: {deviceId: audioSource ? {exact: audioSource} : undefined},
video: {deviceId: videoSource ? {exact: videoSource} : undefined}
};
navigator.mediaDevices.getUserMedia(constraints).then(gotStream).then(gotDevices).catch(handleError);
}
navigator.mediaDevices.enumerateDevices().then(gotDevices);
audioInputSelect.onchange = start;
videoSelect.onchange = start;
start();
})
$('#preview-webcam').on('hide.bs.modal', function (e) {
console.log('stoping preview');
var preview = document.querySelector("#videoPreview");
if (preview.srcObject) {
var stream = preview.srcObject;
var tracks = stream.getTracks();
for (var i = 0; i < tracks.length; i++) {
var track = tracks[i];
track.stop();
}
preview.srcObject = null;
}
})
$('#webcam-share').click(function(){
console.log('starting share');
$('#preview-webcam').modal('hide');
})
});
</script>
</body>
</html>