@@ -1,7 +1,6 @@
<html>
<head>
<title>Podcast</title>
<style>
video, canvas {
width: 35rem;
@@ -14,20 +13,261 @@
<hr>
<center>nginx/1.26.1</center>
<canvas></canvas>
<button onclick="start()">Do the thing</button>
<video playsinline autoplay></video>
<button class="shot">Take photo</button>
<div id="container">
<span>Peer connection</span></h1>
<video id="localVideo" playsinline autoplay muted></video>
<video id="remoteVideo" playsinline autoplay></video>
<div class="box">
<button id="startButton">Start</button>
<button id="callButton">Call</button>
<button id="hangupButton">Hang Up</button>
</div>
</div>
</body>
<script type="text/javascript">
function start() {
// Put variables in global scope to make them available to the browser console.
let startTime;
let localStream;
let pc1;
let pc2;
const offerOptions = {
offerToReceiveAudio: 1,
offerToReceiveVideo: 1
};
const startButton = document.getElementById('startButton');
const callButton = document.getElementById('callButton');
const hangupButton = document.getElementById('hangupButton');
callButton.disabled = true;
hangupButton.disabled = true;
startButton.addEventListener('click', start);
callButton.addEventListener('click', call);
hangupButton.addEventListener('click', hangup);
const localVideo = document.getElementById('localVideo');
const remoteVideo = document.getElementById('remoteVideo');
localVideo.addEventListener('loadedmetadata', function() {
console.log(`Local video videoWidth: ${this.videoWidth}px, videoHeight: ${this.videoHeight}px`);
});
remoteVideo.addEventListener('loadedmetadata', function() {
console.log(`Remote video videoWidth: ${this.videoWidth}px, videoHeight: ${this.videoHeight}px`);
});
remoteVideo.addEventListener('resize', () => {
console.log(`Remote video size changed to ${remoteVideo.videoWidth}x${remoteVideo.videoHeight} - Time since pageload ${performance.now().toFixed(0)}ms`);
// We'll use the first onsize callback as an indication that video has started
// playing out.
if (startTime) {
const elapsedTime = window.performance.now() - startTime;
console.log('Setup time: ' + elapsedTime.toFixed(3) + 'ms');
startTime = null;
}
});
function getName(pc) {
return (pc === pc1) ? 'pc1' : 'pc2';
}
function getOtherPc(pc) {
return (pc === pc1) ? pc2 : pc1;
}
async function start() {
console.log('Requesting local stream');
startButton.disabled = true;
try {
const stream = await navigator.mediaDevices.getUserMedia({audio: true, video: true});
console.log('Received local stream');
localVideo.srcObject = stream;
localStream = stream;
callButton.disabled = false;
} catch (e) {
alert(`getUserMedia() error: ${e.name}`);
}
}
async function call() {
callButton.disabled = true;
hangupButton.disabled = false;
console.log('Starting call');
startTime = window.performance.now();
const videoTracks = localStream.getVideoTracks();
const audioTracks = localStream.getAudioTracks();
if (videoTracks.length > 0) {
console.log(`Using video device: ${videoTracks[0].label}`);
}
if (audioTracks.length > 0) {
console.log(`Using audio device: ${audioTracks[0].label}`);
}
const configuration = {};
console.log('RTCPeerConnection configuration:', configuration);
pc1 = new RTCPeerConnection(configuration);
console.log('Created local peer connection object pc1');
pc1.addEventListener('icecandidate', e => onIceCandidate(pc1, e));
pc2 = new RTCPeerConnection(configuration);
console.log('Created remote peer connection object pc2');
pc2.addEventListener('icecandidate', e => onIceCandidate(pc2, e));
pc1.addEventListener('iceconnectionstatechange', e => onIceStateChange(pc1, e));
pc2.addEventListener('iceconnectionstatechange', e => onIceStateChange(pc2, e));
pc2.addEventListener('track', gotRemoteStream);
localStream.getTracks().forEach(track => pc1.addTrack(track, localStream));
console.log('Added local stream to pc1');
try {
console.log('pc1 createOffer start');
const offer = await pc1.createOffer(offerOptions);
await onCreateOfferSuccess(offer);
} catch (e) {
onCreateSessionDescriptionError(e);
}
}
function onCreateSessionDescriptionError(error) {
console.log(`Failed to create session description: ${error.toString()}`);
}
async function onCreateOfferSuccess(desc) {
console.log(`Offer from pc1\n${desc.sdp}`);
console.log('pc1 setLocalDescription start');
try {
await pc1.setLocalDescription(desc);
onSetLocalSuccess(pc1);
} catch (e) {
onSetSessionDescriptionError();
}
console.log('pc2 setRemoteDescription start');
try {
await pc2.setRemoteDescription(desc);
onSetRemoteSuccess(pc2);
} catch (e) {
onSetSessionDescriptionError();
}
console.log('pc2 createAnswer start');
// Since the 'remote' side has no media stream we need
// to pass in the right constraints in order for it to
// accept the incoming offer of audio and video.
try {
const answer = await pc2.createAnswer();
await onCreateAnswerSuccess(answer);
} catch (e) {
onCreateSessionDescriptionError(e);
}
}
function onSetLocalSuccess(pc) {
console.log(`${getName(pc)} setLocalDescription complete`);
}
function onSetRemoteSuccess(pc) {
console.log(`${getName(pc)} setRemoteDescription complete`);
}
function onSetSessionDescriptionError(error) {
console.log(`Failed to set session description: ${error.toString()}`);
}
function gotRemoteStream(e) {
if (remoteVideo.srcObject !== e.streams[0]) {
remoteVideo.srcObject = e.streams[0];
console.log('pc2 received remote stream');
}
}
async function onCreateAnswerSuccess(desc) {
console.log(`Answer from pc2:\n${desc.sdp}`);
console.log('pc2 setLocalDescription start');
try {
await pc2.setLocalDescription(desc);
onSetLocalSuccess(pc2);
} catch (e) {
onSetSessionDescriptionError(e);
}
console.log('pc1 setRemoteDescription start');
try {
await pc1.setRemoteDescription(desc);
onSetRemoteSuccess(pc1);
} catch (e) {
onSetSessionDescriptionError(e);
}
}
async function onIceCandidate(pc, event) {
try {
await (getOtherPc(pc).addIceCandidate(event.candidate));
onAddIceCandidateSuccess(pc);
} catch (e) {
onAddIceCandidateError(pc, e);
}
console.log(`${getName(pc)} ICE candidate:\n${event.candidate ? event.candidate.candidate : '(null)'}`);
}
function onAddIceCandidateSuccess(pc) {
console.log(`${getName(pc)} addIceCandidate success`);
}
function onAddIceCandidateError(pc, error) {
console.log(`${getName(pc)} failed to add ICE Candidate: ${error.toString()}`);
}
function onIceStateChange(pc, event) {
if (pc) {
console.log(`${getName(pc)} ICE state: ${pc.iceConnectionState}`);
console.log('ICE state change event: ', event);
}
}
function hangup() {
console.log('Ending call');
pc1.close();
pc2.close();
pc1 = null;
pc2 = null;
hangupButton.disabled = true;
callButton.disabled = false;
}
function handleSuccess(stream) {
}
function handleError(error) {
console.log('navigator.MediaDevices.getUserMedia error: ', error.message, error.name);
}
function start2() {
window.navigator.mediaDevices.getUserMedia({
audio: true,
video: true,
})
.then((stream) => {
console.log(stream);
/*console.log(stream);
const canvas = window.canvas = document.querySelector('canvas');
canvas.width = 480;
@@ -52,7 +292,7 @@
})
.catch((err) => {
console.error(`${err.name}: ${err.message}`);
});
});*/
})
.catch((err) => {
console.log(err);