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<!doctype html>
<html lang="en">
<head>
<title>Unrupt calls</title>
<!-- Required meta tags -->
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
<!-- Bootstrap CSS -->
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-beta.2/css/bootstrap.min.css" integrity="sha384-PsH8R72JQ3SOdhVi3uxftmaW6Vc51MKb0q5P2rRUpPvrszuE4W1povHYgTpBfshb" crossorigin="anonymous">
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/font-awesome/4.7.0/css/font-awesome.min.css">
<style>
@media (min-height: 199.99px) and (min-width: 149.99px) {
.video {
width: 240px;
height: 320px;
background: greenyellow;
margin: 0 auto;
}
h1 {
font-size: 1.3em;
}
}
@media (min-height: 699.99px) and (min-width: 299.99px) {
.video {
width: 240px;
height: 604px;
background: gold;
}
}
@media (min-height: 650.99px) and (min-width: 350.99px) {
.video {
width: 309px;
height: 550px;
background: red;
}
}
@media (min-height: 799.99px) and (min-width: 599.99px) {
.video {
width: 480px;
height: 640px;
background: goldenrod;
}
}
@media (min-height: 1023.99px) and (min-width: 799.99px) {
.video {
width: 720px;
height: 960px;
background: darkgoldenrod;
}
}
@media (min-height: 1299.99px) and (min-width: 999.99px) {
.video {
width: 960px;
height: 1280px;
background: darkolivegreen;
}
}
#out {
transform: rotateY(180deg);
width:100%;
position:absolute;
left:0;
right:0;
bottom:0;
margin:auto;
background-size:contain;
background-position: center;
}
#in {
position: absolute;
left:0px;
bottom:0px;
width: 96px;
height: 128px;
}
#audioInfo {
position: relative;
}
#otherUser {
position: relative;
}
#chosenAction {
clear: both;
text-align: center;
}
.playpause {
display: none;
width:100%;
position:absolute;
left:0;
right:0;
bottom:0;
margin:auto;
background-size:contain;
background-position: center;
z-index: 99999;
}
</style>
</head>
<body>
<!-- Optional JavaScript -->
<!-- jQuery first, then Popper.js, then Bootstrap JS -->
<script src="https://code.jquery.com/jquery-3.2.1.slim.min.js" crossorigin="anonymous"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.12.3/umd/popper.min.js" crossorigin="anonymous"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0-beta.2/js/bootstrap.min.js" crossorigin="anonymous"></script>
<script src="https://pi.pe/iot/js/qrcode.js"></script>
<h1 id="title" class="text-center"><a target="_blank" href="https://docs.google.com/document/d/1UAAJUiSZ99gehOnBDvY33yO4yRx-voZ71OsuZrqpiDY/edit">Family Systems</a> <a href="ios.html">Unrupt Demo 1.0</a></h1>
<div class="video" id="otherUser" onclick="doPlay();">
<div id="pauseOther" class="playpause">
<object data="pause.svg"></object>
</div>
</div>
<div class="container">
<div class="progress">
<div id="unruptbuffer_spk" class="progress-bar progress-bar-striped bg-warning" role="progressbar"
aria-valuenow="100" aria-valuemin="0" aria-valuemax="100"></div>
<div id="unruptbuffer_sil" class="progress-bar " role="progressbar" aria-valuenow="100"
aria-valuemin="0" aria-valuemax="100"></div>
</div>
<div>
<span id="mode" class="badge badge-primary pull-left">Direct</span>
<span id="unruptbuffer_len" class="badge pull-right"></span>
</div>
<div id="chosenAction">
<button id="action" type="button" class="btn btn-primary btn-lg"><i class="fa fa-times-circle fa-2x" aria-hidden="true"></i></button>
<button id="pause" type="button" class="btn btn-primary btn-lg"><i id="pauseIcon" class="fa fa-play-circle fa-2x" aria-hidden="true"></i></button>
<button id="mute" type="button" class="btn btn-primary btn-lg"><i id="muteIcon" class="fa fa-microphone fa-2x" aria-hidden="true"></i></button>
<button id="unruptToggle" type="button" class="btn btn-primary btn-lg"><i id="pwsIcon" class="fa fa-exchange fa-2x" aria-hidden="true"></i></button>
</div>
</div>
<div id="share" class="modal" tabindex="-1" role="dialog">
<div class="modal-dialog" role="document">
<div class="modal-content">
<div class="modal-header">
<h5 class="modal-title">Share this url to request a call</h5>
</div>
<div class="modal-body" id="shareQR">
</div>
<div class="modal-footer">
<button id="shareDone" type="button" class="btn btn-secondary" data-dismiss="modal" onclick="shared();">Done</button>
</div>
</div>
</div>
</div>
<div id="accept" class="modal" tabindex="-1" role="dialog">
<div class="modal-dialog" role="document">
<div class="modal-content">
<div class="modal-header">
<h5 class="modal-title">Accept a call</h5>
</div>
<div class="modal-body">
<p>Click 'accept' to start the call.</p>
</div>
<div class="modal-footer">
<button id="callAccept" type="button" class="btn btn-secondary" data-dismiss="modal" onclick="accepted();">Accept</button>
</div>
</div>
</div>
</div>
<!--script src="properties.js"></script-->
<script>
var properties = {
versionname :"Default", // update this to indicate which version of the settings this is
procFramesize: 4096, // how many samples (at 44k1 Hz) in a frame. default 4096 -> ~100ms
// this impacts the latency - but go too low and the audio will break up
scopeFftSize : 2048, // number of samples in the FFT for the oscilloscope. default 2048 seems ok
micSilenceThreshold : 0.0175, // minumum mean mic volume (in range of 0.0->1.0) of a frame that contains voice
// used to trigger pause/unpause
// default 0.0175 ok on imacs
farSilenceThreshold : 0.0175, // minimum mean remote volume (in range of 0.0->1.0) of a frame that contains voice
// used to trim silence from playout
// default 0.0175 ok on imacs
minFramesSilenceForPause: 15, // number of silent near frames (from mic) before we unpause and re-start playback.
minFramesSilenceForPlay: 3, // number of silent frames before we start to clip silence from playback. default 3 (300ms)
maxStashFrames: 500, // longest possible pause (in frames). default 1000 -> 100 sec
websocketURL: "wss://pi.pe/websocket/?finger=" // where to find the redezvous server.
};
var webRTCconfiguration = {
"iceServers": [
{urls: "stun:146.148.121.175:3478"},
{urls: "turn:146.148.121.175:3478?transport=udp", 'credential': 'nexus5x', 'username': 'smartphone'},
],
"bundlePolicy":"max-bundle","iceCandidatePoolSize":1
};
var pc; // actual peer connection to our friend
var socket; // used to set up connection with our peer.
var mid;
var fid;
var cid;
var myac;
var yourac;
var yourBuffer;
var myBuffer;
var initiator;
var lcandyStash = [];
var rcandyStash = [];
var localStream;
var remoteStream;
var scopes= [];
var procs = [];
var backlog = 0;
var backlog_sil = 0;
var backlog_spk = 0;
var tick;
var iamspeaking = false;
var mute = false;
var paused = false;
var videoEnabled = false;
var peerConnectionOfferAnswerCriteria = {offerToReceiveAudio: true, offerToReceiveVideo: false };
var unruptEnabled = true;
var toggleUnrupt;
var AudioContext = window.AudioContext || window.webkitAudioContext;
var framecount =0;
var mode = "waiting";
var offerSendLoop
var session;
// message stuff - used to create direct connection to peer over WEBRTC
function messageDeal(event){
//console.log("message is ", event.data);
var data = JSON.parse(event.data);
console.log("message data is ", data);
if (data.to != mid){
alert("message mixup");
}
switch (data.type) {
case "cheatUnruptToggle":
toggleUnrupt();
break;
case "offer":
if (pc) {
if (session == null) {
session = data.session;
} else {
console.log("we got a duplicate offer ?!?")
}
if (fid == null) {
fid = data.from;
}
pc.setRemoteDescription(data).then(_ =>
pc.createAnswer(peerConnectionOfferAnswerCriteria).then(ans =>
pc.setLocalDescription(ans).then(_ =>
sendMessage(fid, mid, "answer", ans.sdp)
)
)
)
.catch((e) => console.log("set Remote offer error", e));
} else {
console.log("not ready yet, no pc created.");
}
break;
case "answer":
if ((session) && (session === data.session)) {
window.clearInterval(offerSendLoop);
pc.setRemoteDescription(data)
.then(_ => {
//$("#action").text("hangup");
})
.catch(e => console.log("set Remote answer error", e));
} else {
console.log("Got answer we were not expecting. Session was "+session+" data.session was "+data.session);
alert("Mixup in sessions for answer");
}
break;
case "candidate":
if ((session) && (session === data.session)) {
var jc = {
sdpMLineIndex: 0,
candidate: data.sdp
};
console.log("adding candidate ", jc);
var nc = new RTCIceCandidate(jc);
pc.addIceCandidate(nc)
.then(_ => console.log("added remote candidate"))
.catch((e) => console.log("couldn't add candidate ", e));
} else {
console.log("Session error for candidates. Session was "+session+" data.session was "+data.session);
}
break;
}
}
function sendJ(m){
var message = JSON.stringify(m);
console.log("sending ", m);
socket.send(message);
}
function sendMessage(to,from,type,data){
var messageJ = {
to:to,
retry:0,
from:from,
type:type,
sdp:data
};
if (type==='offer') {
messageJ.retry = 5;
session = Date.now();
messageJ.session = session;
offerSendLoop = window.setInterval((it) => {
if (messageJ.retry > 0) {
messageJ.retry--;
sendJ(messageJ);
} else {
window.clearInterval(offerSendLoop);
console.log("given up on ", messageJ);
}
}, 10000);
} else {
messageJ.session = session;
}
// so either way we send it once _immediately_
// offers we keep sending for a minute - 'till we see an answer or....
sendJ(messageJ);
}
// button actions
function startCall(cid){
lcandyStash = [];
rcandyStash = [];
fid = cid;
pc.createOffer(peerConnectionOfferAnswerCriteria)
.then(desc => {
console.log("offer created",);
pc.setLocalDescription(desc).then( d => sendMessage(fid, mid, desc.type, desc.sdp));
})
.catch(e => console.log("offer not created due to ", e) );
}
function stopCall(){
window.location.href = window.location.href;
}
function videoCapture() {
var video = document.getElementById("out");
var videoWidth = video.videoWidth, videoHeight = video.videoHeight;
var canvas = document.getElementById('pauseOther');
canvas.width = videoWidth;
canvas.height = videoHeight;
var context = canvas.getContext('2d');
context.translate(canvas.width, 0);
// flip context horizontally
context.scale(-1, 1);
context.drawImage(
video, 0, 0, videoWidth, videoHeight
);
var img = new Image();
img.onload = function() {
context.drawImage(img, (videoWidth/2)-24, (videoHeight/2)-24);
}
img.src = "pause.svg";
}
// webaudio processing
// display waveform for diagnostics
function doScopeNode(ac, node, scopename) {
console.log("making scope node ", scopename);
var analyser = ac.createAnalyser();
analyser.fftSize = properties.scopeFftSize;
node.connect(analyser);
makeDraw(scopename, analyser);
scopes.push(analyser);
return analyser;
}
// processing incoming audio
function yourProc(node){
var buffer = yourBuffer;
console.log("made unrupt buffer of size ", buffer.bufferSize, buffer);
var silentcount = 0;
var audiostash = [];
var ub = $('#unruptToggle');
var pb = $("#pause");
console.log('PauseButton!!!', pb);
var oldmute = false;
toggleUnrupt = () => {
var ubi = $('#pwsIcon');
if (unruptEnabled) {
unruptEnabled = false;
console.log('disconnecting the buffer');
node.disconnect(buffer);
document.getElementById('out').muted = false;
document.getElementById('out').play();
$('#pauseOther').hide();
ubi.removeClass("fa-exchange");
ubi.addClass("fa-arrows-h");
} else {
unruptEnabled = true;
console.log('connecting the buffer');
node.connect(buffer);
document.getElementById('out').muted = true;
ubi.removeClass("fa-arrows-h");
ubi.addClass("fa-exchange");
}
}
ub.off('click').on('click', (e) => {
e.stopImmediatePropagation();
toggleUnrupt();
sendMessage(fid, mid, "cheatUnruptToggle", true);
});
pb.off('click').on('click', (e) => {
e.stopImmediatePropagation();
var pbi = $("#pauseIcon");
console.log('clicked on pause!');
console.log('paused variable is', paused);
if (!paused){
paused = true;
pbi.removeClass("fa-play-circle");
pbi.addClass("fa-pause-circle");
oldmute = mute;
setMute(true);
} else {
paused = false;
pbi.removeClass("fa-pause-circle");
pbi.addClass("fa-play-circle");
setMute(oldmute);
}
});
buffer.onaudioprocess = (ape) => {
framecount++;
if (!unruptEnabled) {
console.log('unrupt isnt enabled so clearing the backlog numbers');
backlog_sil = backlog_spk = 0;
return;
}
var inputBuffer = ape.inputBuffer;
// The output buffer contains the samples that will be modified and played
var outputBuffer = ape.outputBuffer;
// Loop through the output channels (in this case there is only one)
if (inputBuffer.numberOfChannels == 1){
var inputData = inputBuffer.getChannelData(0);
var outputData = outputBuffer.getChannelData(0);
// we (almost) always stash the inbound data
if (audiostash.length < properties.maxStashFrames) {
var buff = new Float32Array(inputBuffer.length);
var avg = 0.0;
for (var sample = 0; sample < inputBuffer.length; sample++) {
buff[sample] = inputData[sample]; // copy
avg += Math.abs(buff[sample]); // sample
}
avg = avg / inputBuffer.length;
var silent = (avg < properties.farSilenceThreshold);
if (silent){
silentcount++;
backlog_sil++;
} else {
silentcount =0;
backlog_spk++;
}
audiostash.unshift({silent: silent, buff:buff, silentcount: silentcount});
// store annotated version
}
backlog = audiostash.length /10;
if (paused || iamspeaking) {
for (var sample = 0; sample < inputBuffer.length; sample++) {
outputData[sample] = 0.0; // silence
}
} else {
var stash = audiostash.pop();
if (stash.silent){
backlog_sil--;
} else {
backlog_spk--;
}
var deleteme = (stash.silent);
while ((audiostash.length > 0) && (deleteme)){
console.log("have backlog", audiostash.length);
deleteme = false;
if (audiostash[0].silent){
console.log("next one is silent too");
if (stash.silentcount > properties.minFramesSilenceForPlay){
console.log("silentcount = ", stash.silentcount);
deleteme = true;
stash = audiostash.pop();
if (stash.silent){
backlog_sil--;
} else {
backlog_spk--;
}
}
}
}
var buff = stash.buff;
for (var sample = 0; sample < inputBuffer.length; sample++) {
outputData[sample] = buff[sample];
}
}
}
};
node.connect(buffer);
procs.push(buffer)
return buffer;
}
// mute management
function setMute(m){
var mi = $("#muteIcon");
mute = m;
if (m){
mi.removeClass("fa-microphone");
mi.addClass("fa-microphone-slash");
} else {
mi.removeClass("fa-microphone-slash");
mi.addClass("fa-microphone");
}
var audioTracks = localStream.getAudioTracks();
if (audioTracks[0]) {
audioTracks[0].enabled = !m;
}
}
// processing audio from the local microphone
function myProc(node){
var mb = $("#mute");
mb.click( () => {
setMute(!mute);
});
var buffer = myBuffer;
console.log("made unrupt buffer of size ", buffer.bufferSize);
var silentcount = 0;
buffer.onaudioprocess = ape => {
var inputBuffer = ape.inputBuffer;
var outputBuffer = ape.outputBuffer;
// Loop through the output channels (in this case there is only one)
if (inputBuffer.numberOfChannels == 1){
var inputData = inputBuffer.getChannelData(0);
var outputData = outputBuffer.getChannelData(0);
// Loop through the 4096 samples
var avg = 0.0;
for (var sample = 0; sample < inputBuffer.length; sample++) {
// make output equal to the same as the input
outputData[sample] = inputData[sample];
avg += Math.abs(outputData[sample]); // sample
}
avg = avg / inputBuffer.length;
var silent = (avg < properties.micSilenceThreshold);
if (iamspeaking){
if (silent){
silentcount++;
}
if (silentcount > properties.minFramesSilenceForPause){
iamspeaking = false;
}
} else {
if (!silent) {
iamspeaking = true;
silentcount =0;
}
}
}
};
node.connect(buffer);
procs.push(buffer);
return buffer;
}
// called when webRTC presents us with a fresh remote audio stream
function addStream(stream,kind) {
if (!kind) {
kind = "audio/video";
}
console.log("got new stream" + stream + " kind =" + kind);
if (kind.indexOf("video") != -1) {
remoteStream = stream;
var mediaElement = document.getElementById('out');
mediaElement.srcObject = stream;
//mediaElement.muted = true;
console.log('Video stream');
mediaElement.onloadedmetadata = function (e) {
//mediaElement.play();
mediaElement.muted = true;
};
}
if (kind.indexOf("audio")!= -1) {
var peer = yourac.createMediaStreamSource(stream);
console.log('Audio sample Rate is '+ yourac.sampleRate);
var scope = doScopeNode(yourac, peer, "farscope");
var buffproc = yourProc(scope);
var scope2 = doScopeNode(yourac, buffproc, "earscope");
scope2.connect(yourac.destination);
//$("#chosenAction").show();
}
}
// configure local peerconnection and handlers
function setupRTC(){
pc = new RTCPeerConnection(webRTCconfiguration, null);
console.log("created peer connection");
pc.onicecandidate = (e) => {
console.log("local ice candidate", e.candidate);
if (e.candidate != null) {
if (pc.signalingState == 'stable') {
sendMessage(fid, mid, "candidate", e.candidate.candidate);
} else {
console.log("stashing ice candidate");
lcandyStash.push(e.candidate);
}
}
};
pc.oniceconnectionstatechange = (e) => {
console.log("ice state is changed", pc.iceConnectionState);
if (pc.iceConnectionState === "failed"){
stopCall();
}
};
// specification of WEBRTC is in flux - so we test to see if ontrack callback exists
if ('ontrack' in pc) {
// if so we use it
pc.ontrack = (event) => {
var stream = event.streams[0];
console.log("got remote track ", event.track.kind);
addStream(stream,event.track.kind);
};
} else {
// if not we use add stream instead
pc.onaddstream = (event) => {
var stream = event.stream;
console.log("got remote stream ", stream.kind);
addStream(stream);
}
}
// use this to determine the state of the 'hangup' button and send any candidates we found quickly
pc.onsignalingstatechange = (evt) => {
console.log("signalling state is ", pc.signalingState);
if (pc.signalingState == 'stable') {
var can;
while (can = lcandyStash.pop()) {
console.log("popping candidate off stash")
sendMessage(fid, mid, "candidate", can.candidate);
}
var act = $("#action");
//act.text("hangup");
act.click( _ => stopCall() );
}
};
}
// plumb the local audio together.
function setupAudio() {
myac = new AudioContext();
yourac = new AudioContext();
yourBuffer = yourac.createScriptProcessor(properties.procFramesize, 1, 1);
myBuffer = myac.createScriptProcessor(properties.procFramesize, 1, 1);
let supportedConstraints = navigator.mediaDevices.getSupportedConstraints();
console.log("Supported constraints");
for (let constraint in supportedConstraints) {
if (supportedConstraints.hasOwnProperty(constraint)) {
console.log("\t" + constraint + "=" + supportedConstraints[constraint]);
}
}
//var gumConstraints = {audio: true, video: videoEnabled ? {width: 640, height: 480} : false};
var gumConstraints = {audio: true, video: true};
var promise = new Promise(function (resolve, reject) {
navigator.mediaDevices.getUserMedia(gumConstraints)
.then((stream) => {
localStream = stream; // in case we need it
var node = myac.createMediaStreamSource(stream);
var detect = myProc(node);
var manl = doScopeNode(myac, detect, "nearscope");
// var dest = myac.createMediaStreamDestination();
// manl.connect(dest);
// var lstream = dest.stream;
if (pc.addTrack) {
stream.getTracks().forEach(track => {
pc.addTrack(track, stream);
console.log("added local track ", track.id, track.kind);
});
} else {
pc.addStream(stream);
console.log("added local stream");
}
if (videoEnabled) {
var ourMediaElement = document.getElementById('in');
ourMediaElement.srcObject = stream;
ourMediaElement.onloadedmetadata = function (e) {
//ourMediaElement.play();
};
ourMediaElement.onclick = function (e) {
console.log("onclick for in video");
ourMediaElement.play();
var theirMediaElement = document.getElementById('out');
theirMediaElement.play();
};
}
resolve(videoEnabled);
})
.catch((e) => {
console.log('getUserMedia() error:' + e);
reject(e);
});
});
return promise;
}
function doPlay() {
var ourMediaElement = document.getElementById('in');
console.log("onclick for in video");
ourMediaElement.play();
var theirMediaElement = document.getElementById('out');
theirMediaElement.play();
}
function shared() {
setupRTC();
setupAudio().then(_ => {
console.log("ready for offer");
doPlay();
});
}
function accepted() {
setupRTC();
setupAudio().then(_ => {
console.log("ready for offer");
startCall(cid)
doPlay();
});
}
// decide who we are initiator or recpient.
// notice that the actual call goes in the reverse direction
// the recipient of the invite actually creates the audiobearing peerconnection
// the initiator then accepts this audio - This allows the initiator the chance to
// change their mind, if their circumstances have changed since the invite was sent.
function setRole() {
cid = $.getUrlVar("unruptId");
mid = localStorage['unruptId'];
console.log('URL unrupt ID:', cid);
console.log('localStorage unrupt ID:', mid);
//var act = $("#action");
if (!mid) {
var array = new Uint32Array(8);
window.crypto.getRandomValues(array);
var hexCodes = [];
for (var i = 0; i < array.length; i ++ ){
// Using getUint32 reduces the number of iterations needed (we process 4 bytes each time)
var value = array[i];
// toString(16) will give the hex representation of the number without padding
var stringValue = value.toString(16)
// We use concatenation and slice for padding
var padding = '00000000'
var paddedValue = (padding + stringValue).slice(-padding.length)
hexCodes.push(paddedValue);
}
mid = hexCodes.join("").toLowerCase();
localStorage['unruptId'] = mid;
console.log('Didnt have our own unrupt ID so generated one:', mid);
}
if (cid == null){
chooseAction.show();
chooseActionAudio.click( _ => {
document.location = location.pathname + "?" + "unruptId=" + mid;
});
chooseActionVideo.click( _ => {
document.location = location.pathname + "?" + "unruptId=" + mid + "&video=1";
});
} else {
var qrcode = new QRCode(document.getElementById("shareQR"), {
width: 280,
height: 280,
correctLevel: QRCode.CorrectLevel.L
});
socket = new WebSocket( properties.websocketURL + mid);
socket.onmessage = messageDeal;
socket.onopen = (_) => {
var url = document.location.href;
console.log("href = "+url);
if (url) {
qrcode.makeCode(url);
}
initiator = (mid === cid);
console.log(initiator ? 'We are the initiator' : 'We are not the initiator');
var smodal = initiator ? "#share":"#accept";
$(smodal).modal('show');
};
socket.onerror = (e) => {
console.log("can't open websocket", e);
};
socket.onclose = (e) => {
console.log(" websocket closed", e);
};
}
}
// thing that draws the scopes...
function makeDraw(canvName, anode) {
var analyser = anode;
var speaking = false;
var bufferLength = analyser.frequencyBinCount;
var dataArray = new Uint8Array(bufferLength);
var canvas = document.getElementById(canvName);
var badge = document.getElementById(canvName + "-badge");
if ((badge) && (canvas)) {
var canvasCtx = canvas.getContext("2d");
// oscilloscope - for debug.
var draw = _ => {
// Get a canvas defined with ID "oscilloscope"
var drawVisual = requestAnimationFrame(draw);
analyser.getByteTimeDomainData(dataArray);
canvasCtx.fillStyle = 'rgb(200, 200, 200)';
canvasCtx.fillRect(0, 0, canvas.width, canvas.height);
canvasCtx.lineWidth = 2;
canvasCtx.strokeStyle = 'rgb(0, 0, 0)';
canvasCtx.beginPath();
var sliceWidth = canvas.width * 1.0 / bufferLength;
var x = 0;
var tot = 0.0;
for (var i = 0; i < bufferLength; i++) {
var v = dataArray[i] / 128.0;
tot += Math.abs(dataArray[i] - 128);
var y = v * canvas.height / 2;
if (i === 0) {
canvasCtx.moveTo(x, y);
} else {
canvasCtx.lineTo(x, y);
}
x += sliceWidth;
}
var mean = tot / bufferLength;
var newspeak = (mean > 2.0);
if (newspeak != speaking) {
speaking = newspeak;
//console.log("newspeak "+newspeak+" mean "+mean);
badge.innerText = speaking ? "Speaking" : "Silent";
}
canvasCtx.lineTo(canvas.width, canvas.height / 2);
canvasCtx.stroke();
};
draw();
}
}
// some housekeeping
$.extend({
getUrlVars: function(){
var vars = [], hash;
var hashes = window.location.href.slice(window.location.href.indexOf('?') + 1).split('&');
for(var i = 0; i < hashes.length; i++)
{
hash = hashes[i].split('=');
vars.push(hash[0]);
vars[hash[0]] = hash[1];
}
return vars;
},
getUrlVar: function(name){
return $.getUrlVars()[name];
}
});
$( document ).ready( _ => {
videoEnabled = $.getUrlVar("video") == '1';
if(videoEnabled) {
peerConnectionOfferAnswerCriteria = {};
var otherUserMediaElement = document.createElement('video');
otherUserMediaElement.id = 'out';
otherUserMediaElement.muted = true;
otherUserMediaElement.className ="video";
otherUserMediaElement.setAttribute("playsinline", "true");
//otherUserMediaElement.setAttribute("autoplay", "true");
document.getElementById('otherUser').appendChild(otherUserMediaElement);
var thisUserMediaElement = document.createElement('video');
thisUserMediaElement.id = 'in';
thisUserMediaElement.muted = true;
thisUserMediaElement.setAttribute("playsinline", "true");
//thisUserMediaElement.setAttribute("autoplay", "true");
document.getElementById('otherUser').appendChild(thisUserMediaElement);
} else {
var mediaElement = document.createElement('audio');
mediaElement.id = 'out';
mediaElement.muted = true;
document.body.appendChild(mediaElement);
}
//$("#chosenAction").hide();
setRole();
//$('#version').text(properties.versionname);
tick = window.setInterval( t => {
var scale = properties.maxStashFrames / 100.0;
var spk = backlog_spk / scale;
var sil = backlog_sil / scale;
var timeline = Math.floor((backlog_spk + backlog_sil) * properties.procFramesize / 44100.0);
$('#unruptbuffer_len').text(timeline + " seconds");
$('#unruptbuffer_sil').css('width', sil + "%").attr('aria-valuenow', sil);
$('#unruptbuffer_spk').css('width', spk + "%").attr('aria-valuenow', spk);
var playout = backlog > 1 ? "playing" : "direct";
var newmode = (iamspeaking || paused) ? "paused" : playout;
if (newmode != mode) {
if (remoteStream && videoEnabled && unruptEnabled) {
mode = newmode;
$('#mode').text(mode);
var pauseIcon = $('#pauseOther');
var pause = false;
if (mode === "paused") {
//otherUserMediaElement.pause();
//videoCapture();
pauseIcon.show();
//$('#out').hide();
pause = true;
} else {
//otherUserMediaElement.play();
pauseIcon.hide();
//$('#out').show();
}
// ideally if this is pause-start, we'd snapshot the video and pull a still
//otherUserMediaElement.srcObject.getTracks().forEach(t => t.enabled = !pause);
}
}