369 lines
11 KiB
JavaScript
369 lines
11 KiB
JavaScript
const io = require('socket.io-client')
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const mediasoupClient = require('mediasoup-client')
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const urlParams = new URLSearchParams(location.search);
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const config = require('./config')
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console.log('[CONFIG]', config);
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const ASSET_ID = parseInt(urlParams.get('assetId')) || null;
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const ACCOUNT_ID = parseInt(urlParams.get('accountId')) || null;
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let callId = parseInt(urlParams.get('callId')) || null;
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const IS_PRODUCER = urlParams.get('producer') === 'true' ? true : false
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console.log('[URL] ASSET_ID', ASSET_ID, '| ACCOUNT_ID', ACCOUNT_ID, '| callId', callId, ' | IS_PRODUCER', IS_PRODUCER)
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let socket
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hub = io(config.hubAddress)
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const connectToMediasoup = () => {
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socket = io(config.mediasoupAddress)
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socket.on('connection-success', ({ _socketId, existsProducer }) => {
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console.log(`[MEDIA] ${config.mediasoupAddress} | connected: ${socket.connected} | existsProducer: ${existsProducer}`)
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if (!IS_PRODUCER && existsProducer && consumer === undefined) {
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goConnect()
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// document.getElementById('btnRecvSendTransport').click();
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}
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if (IS_PRODUCER && urlParams.get('testing') === 'true') { getLocalStream() }
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})
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}
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if (IS_PRODUCER === true) {
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hub.on('connect', async () => {
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console.log(`[HUB] ${config.hubAddress} | connected: ${hub.connected}`)
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connectToMediasoup()
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hub.emit(
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'ars',
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JSON.stringify({
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ars: true,
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asset_id: ASSET_ID,
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account_id: ACCOUNT_ID,
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})
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);
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hub.on('video', (data) => {
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const parsedData = JSON.parse(data);
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console.log('video', parsedData)
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originAssetId = parsedData.origin_asset_id;
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originAssetName = parsedData.origin_asset_name;
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originAssetTypeName = parsedData.origin_asset_type_name;
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callId = parsedData.video_call_id;
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console.log('IS_PRODUCER', IS_PRODUCER, 'callId', callId);
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if (parsedData.type === 'notify-request' && IS_PRODUCER) {
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getLocalStream()
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}
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})
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})
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hub.on('connect_error', (error) => {
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console.log('connect_error', error);
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});
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hub.on('connection', () => {
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console.log('connection')
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})
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hub.on('disconnect', () => {
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console.log('disconnect')
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})
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} else {
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connectToMediasoup()
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}
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let device
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let rtpCapabilities
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let producerTransport
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let consumerTransport
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let producer
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let consumer
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let originAssetId
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let originAssetName
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let originAssetTypeName
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// https://mediasoup.org/documentation/v3/mediasoup-client/api/#ProducerOptions
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// https://mediasoup.org/documentation/v3/mediasoup-client/api/#transport-produce
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let params = {
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// mediasoup params
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encodings: [
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{
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rid: 'r0',
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maxBitrate: 100000,
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scalabilityMode: 'S1T3',
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},
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{
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rid: 'r1',
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maxBitrate: 300000,
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scalabilityMode: 'S1T3',
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},
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{
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rid: 'r2',
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maxBitrate: 900000,
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scalabilityMode: 'S1T3',
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},
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],
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// https://mediasoup.org/documentation/v3/mediasoup-client/api/#ProducerCodecOptions
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codecOptions: {
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videoGoogleStartBitrate: 1000
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}
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}
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const streamSuccess = (stream) => {
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localVideo.srcObject = stream
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const track = stream.getVideoTracks()[0]
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params = {
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track,
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...params
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}
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goConnect()
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}
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const getLocalStream = () => {
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console.log('[getLocalStream]');
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navigator.mediaDevices.getUserMedia({
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audio: false,
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video: {
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width: {
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min: 640,
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max: 1920,
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},
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height: {
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min: 400,
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max: 1080,
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}
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}
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})
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.then(streamSuccess)
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.catch(error => {
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console.log(error.message)
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})
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}
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const goConnect = () => {
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device === undefined ? getRtpCapabilities() : goCreateTransport()
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}
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const goCreateTransport = () => {
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IS_PRODUCER ? createSendTransport() : createRecvTransport()
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}
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// A device is an endpoint connecting to a Router on the
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// server side to send/recive media
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const createDevice = async () => {
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try {
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device = new mediasoupClient.Device()
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// https://mediasoup.org/documentation/v3/mediasoup-client/api/#device-load
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// Loads the device with RTP capabilities of the Router (server side)
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await device.load({
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// see getRtpCapabilities() below
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routerRtpCapabilities: rtpCapabilities
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})
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console.log('Device RTP Capabilities', device.rtpCapabilities)
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// once the device loads, create transport
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goCreateTransport()
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} catch (error) {
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console.log(error)
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if (error.name === 'UnsupportedError')
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console.warn('browser not supported')
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}
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}
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const getRtpCapabilities = () => {
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// make a request to the server for Router RTP Capabilities
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// see server's socket.on('getRtpCapabilities', ...)
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// the server sends back data object which contains rtpCapabilities
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socket.emit('createRoom', { callId }, (data) => {
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console.log(`Router RTP Capabilities... ${data.rtpCapabilities}`)
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// we assign to local variable and will be used when
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// loading the client Device (see createDevice above)
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rtpCapabilities = data.rtpCapabilities
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// once we have rtpCapabilities from the Router, create Device
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createDevice()
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})
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}
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const createSendTransport = () => {
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// see server's socket.on('createWebRtcTransport', sender?, ...)
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// this is a call from Producer, so sender = true
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socket.emit('createWebRtcTransport', { sender: true, callId }, ({ params }) => {
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// The server sends back params needed
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// to create Send Transport on the client side
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if (params.error) {
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console.log(params.error)
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return
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}
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console.log(params)
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// creates a new WebRTC Transport to send media
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// based on the server's producer transport params
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// https://mediasoup.org/documentation/v3/mediasoup-client/api/#TransportOptions
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producerTransport = device.createSendTransport(params)
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// https://mediasoup.org/documentation/v3/communication-between-client-and-server/#producing-media
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// this event is raised when a first call to transport.produce() is made
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// see connectSendTransport() below
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producerTransport.on('connect', async ({ dtlsParameters }, callback, errback) => {
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try {
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// Signal local DTLS parameters to the server side transport
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// see server's socket.on('transport-connect', ...)
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await socket.emit('transport-connect', {
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dtlsParameters,
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})
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// Tell the transport that parameters were transmitted.
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callback()
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} catch (error) {
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errback(error)
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}
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})
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producerTransport.on('produce', async (parameters, callback, errback) => {
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console.log(parameters)
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try {
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// tell the server to create a Producer
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// with the following parameters and produce
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// and expect back a server side producer id
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// see server's socket.on('transport-produce', ...)
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await socket.emit('transport-produce', {
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kind: parameters.kind,
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rtpParameters: parameters.rtpParameters,
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appData: parameters.appData,
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}, ({ id }) => {
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// Tell the transport that parameters were transmitted and provide it with the
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// server side producer's id.
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callback({ id })
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})
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} catch (error) {
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errback(error)
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}
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})
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connectSendTransport()
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})
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}
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const connectSendTransport = async () => {
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// we now call produce() to instruct the producer transport
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// to send media to the Router
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// https://mediasoup.org/documentation/v3/mediasoup-client/api/#transport-produce
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// this action will trigger the 'connect' and 'produce' events above
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producer = await producerTransport.produce(params)
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producer.on('trackended', () => {
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console.log('track ended')
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// close video track
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})
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producer.on('transportclose', () => {
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console.log('transport ended')
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// close video track
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})
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const answer = {
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origin_asset_id: ASSET_ID,
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dest_asset_id: originAssetId || parseInt(urlParams.get('dest_asset_id')),
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type: 'notify-answer',
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origin_asset_priority: 1,
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origin_asset_type_name: originAssetTypeName,
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origin_asset_name: originAssetName,
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video_call_id: callId,
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answer: 'accepted', // answer: 'rejected'
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};
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console.log('SEND answer', answer);
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hub.emit(
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'video',
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JSON.stringify(answer)
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);
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}
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const createRecvTransport = async () => {
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console.log('createRecvTransport');
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// see server's socket.on('consume', sender?, ...)
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// this is a call from Consumer, so sender = false
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await socket.emit('createWebRtcTransport', { sender: false, callId }, ({ params }) => {
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// The server sends back params needed
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// to create Send Transport on the client side
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if (params.error) {
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console.log(params.error)
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return
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}
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console.log(params)
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// creates a new WebRTC Transport to receive media
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// based on server's consumer transport params
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// https://mediasoup.org/documentation/v3/mediasoup-client/api/#device-createRecvTransport
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consumerTransport = device.createRecvTransport(params)
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// https://mediasoup.org/documentation/v3/communication-between-client-and-server/#producing-media
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// this event is raised when a first call to transport.produce() is made
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// see connectRecvTransport() below
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consumerTransport.on('connect', async ({ dtlsParameters }, callback, errback) => {
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try {
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// Signal local DTLS parameters to the server side transport
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// see server's socket.on('transport-recv-connect', ...)
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await socket.emit('transport-recv-connect', {
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dtlsParameters,
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})
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// Tell the transport that parameters were transmitted.
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callback()
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} catch (error) {
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// Tell the transport that something was wrong
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errback(error)
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}
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})
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connectRecvTransport()
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})
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}
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const connectRecvTransport = async () => {
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console.log('connectRecvTransport');
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// for consumer, we need to tell the server first
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// to create a consumer based on the rtpCapabilities and consume
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// if the router can consume, it will send back a set of params as below
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await socket.emit('consume', {
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rtpCapabilities: device.rtpCapabilities,
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callId
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}, async ({ params }) => {
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if (params.error) {
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console.log('Cannot Consume')
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return
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}
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// then consume with the local consumer transport
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// which creates a consumer
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consumer = await consumerTransport.consume({
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id: params.id,
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producerId: params.producerId,
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kind: params.kind,
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rtpParameters: params.rtpParameters
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})
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// destructure and retrieve the video track from the producer
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const { track } = consumer
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let stream = new MediaStream()
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stream.addTrack(track)
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// stream.removeTrack(track)
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remoteVideo.srcObject = stream
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socket.emit('consumer-resume')
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console.log('consumer', consumer);
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})
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}
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btnLocalVideo.addEventListener('click', getLocalStream)
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btnRecvSendTransport.addEventListener('click', goConnect) |