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|
const roomId = 0000;
const opaqueId = Janus.randomString(20);
let localStream;
let janus;
const server = 'wss://xxxxx';
let privateId;
const display = 'display';
const uid = Date.now();
let localVideoRoomHandle;
const remoteVMHandles = [];
console.log('Janus init start.');
Janus.init({
callback() {
console.log('Janus init success.');
$('#start').click(async () => {
localStream = await navigator.mediaDevices.getUserMedia({audio: true, video: true});
console.log('mediaDevices.getUserMedia success. localStream: ', localStream);
addLocalVideo(localStream);
console.log('Create janus instance start.');
janus = new Janus({
server,
iceServers: [{urls: 'stun:stun.stunprotocol.org'}],
success() {
console.log('Create janus instance success. janus:', janus);
console.log('Attach video room plugin start.');
janus.attach({
plugin: 'janus.plugin.videoroom',
opaqueId,
success(pluginHandle) {
localVideoRoomHandle = pluginHandle;
console.log('Attach video room plugin success. localVideoRoomHandle: ', localVideoRoomHandle);
join();
},
onmessage: function(msg, jsep) {
const event = msg['videoroom'];
switch (event) {
case 'joined': {
const {id, private_id} = msg;
privateId = private_id;
console.log('Join video room success. ', `id: ${id} privateId: ${privateId}`);
publish();
if (msg['publishers']) {
for (const publisher of msg['publishers']) {
subscribe(publisher.id, publisher.display, publisher.audio, publisher.video);
}
}
break;
}
case 'event': {
if (msg['publishers']) {
for (const publisher of msg['publishers']) {
subscribe(publisher.id, publisher.display, publisher.audio, publisher.video);
}
}
break;
}
}
if (jsep) {
localVideoRoomHandle.handleRemoteJsep({jsep});
}
},
error(err) {
console.error(err);
},
});
},
error(error) {
console.error(error);
},
destroyed() {
console.log('destroyed');
},
});
});
},
});
function join() {
console.log('Join video room start.');
var register = {
request: 'join',
room: roomId,
ptype: 'publisher',
id: uid,
display: display,
};
localVideoRoomHandle.send({message: register});
}
function publish() {
console.log('Publish video room start.');
localVideoRoomHandle.createOffer({
media: {
audioRecv: false,
videoRecv: false,
audioSend: true,
videoSend: true,
},
success(jsep) {
var publish = {request: 'configure', audio: true, video: true};
localVideoRoomHandle.send({message: publish, jsep: jsep});
},
});
}
function subscribe(id, display, audio, video) {
console.log('subscribe start. params:', id, display, audio, video);
let remoteHandle;
janus.attach(
{
plugin: 'janus.plugin.videoroom',
opaqueId,
success: function(pluginHandle) {
remoteHandle = pluginHandle;
const subscribe = {
request: 'join',
room: roomId,
ptype: 'subscriber',
feed: id,
private_id: privateId,
};
remoteHandle.videoCodec = video;
remoteHandle.send({message: subscribe});
console.log('remoteHandle:', remoteHandle);
remoteVMHandles.push(remoteHandle);
},
onmessage(msg, jsep) {
var event = msg['videoroom'];
if (jsep) {
Janus.debug('Handling SDP as well...', jsep);
remoteHandle.createAnswer(
{
jsep: jsep,
media: {audioSend: false, videoSend: false},
success: function(jsep) {
var body = {request: 'start', room: roomId};
remoteHandle.send({message: body, jsep: jsep});
},
});
}
},
onremotestream: function(stream) {
addRemoteVideo(stream, remoteHandle);
},
});
}
function addLocalVideo(stream) {
const videoEle = document.createElement('video');
videoEle.srcObject = stream;
videoEle.width = 320;
videoEle.height = 240;
videoEle.autoplay = true;
$('#localVideoWarp').append(videoEle);
}
function addRemoteVideo(stream, remoteHandle) {
if ($(`#remoteHandle${remoteHandle.id}`)[0]) {
return;
}
const videoEle = document.createElement('video');
videoEle.srcObject = stream;
videoEle.width = 320;
videoEle.height = 240;
videoEle.autoplay = true;
videoEle.id = `remoteHandle${remoteHandle.id}`;
$('#remoteVideoWarp').append(videoEle);
}
|
