MultiStreamsMixer.js | LIVE DEMO
- Mix Multiple Cameras or Videos
- Mix Multiple Microphones or Audios (Mp3/Wav/Ogg)
- Mix Multiple Screens or Screen+Video
- Mix Canvas 2D Animation + Camera + Screen
- and GET SINGLE STREAM!!
All Demos
- Main Demo: https://www.webrtc-experiment.com/MultiStreamsMixer/
- Record Multiple Cameras
- Record Camera+Screen
Pass multiple streams (e.g. screen+camera or multiple-cameras) and get single stream.
Link the library
<script src="https://www.webrtc-experiment.com/MultiStreamsMixer.js"></script>Or link specific build:
Or install using NPM:
npm install multistreamsmixerAnd import/require:
const MultiStreamsMixer = require('multistreamsmixer');
import MultiStreamsMixer from 'multistreamsmixer';How to mix audios?
const audioMixer = new MultiStreamsMixer([microphone1, microphone2]);
// record using MediaRecorder API
const recorder = new MediaRecorder(audioMixer.getMixedStream());
// or share using WebRTC
rtcPeerConnection.addStream(audioMixer.getMixedStream());How to mix screen+camera?
screenStream.fullcanvas = true;
screenStream.width = screen.width; // or 3840
screenStream.height = screen.height; // or 2160
cameraStream.width = parseInt((20 / 100) * screenStream.width);
cameraStream.height = parseInt((20 / 100) * screenStream.height);
cameraStream.top = screenStream.height - cameraStream.height;
cameraStream.left = screenStream.width - cameraStream.width;
const mixer = new MultiStreamsMixer([screenStream, cameraStream]);
rtcPeerConnection.addStream(mixer.getMixedStream());
mixer.frameInterval = 1;
mixer.startDrawingFrames();
btnStopStreams.onclick = function() {
mixer.releaseStreams();
};
btnAppendNewStreams.onclick = function() {
mixer.appendStreams([anotherStream]);
};
btnStopScreenSharing.onclick = function() {
// replace all old streams with this one
// it will replace only video tracks
mixer.resetVideoStreams([cameraStreamOnly]);
};How to mix multiple cameras?
const mixer = new MultiStreamsMixer([camera1, camera2]);
rtcPeerConnection.addStream(mixer.getMixedStream());
mixer.frameInterval = 1;
mixer.startDrawingFrames();API
getMixedStream: (function) returns mixed MediaStream objectframeInterval: (property) allows you set frame intervalstartDrawingFrames: (function) start mixing video streamsresetVideoStreams: (function) replace all existing video streams with new onesreleaseStreams: (function) stop mixing streamsappendStreams: (function) append extra/new streams (anytime)
TypeScript / Angular
import { MultiStreamsMixer } from 'yourPath/MultiStreamsMixer';
let mixer = new MultiStreamsMixer([stream1,stream2]);
mixer.appendStreams(stream3);
let mixed = mixer.getMixedStream();P.S: pollyfills are removed (except for AudioContext) use adapter instead.
Access <canvas> or <video> using querySelector
var canvas = document.querySelector('canvas.multi-streams-mixer');
var videos = document.querySelectorAll('video.multi-streams-mixer');
canvas.style.opacity = .1;API
// default elementClass is "multi-streams-mixer"
var instance = new MultiStreamsMixer(arrayOfMediaStreams, elementClass);
MultiStreamsMixer.prototype = {
// get readonly MediaStream
getMixedStream: function() {},
// add more streams
appendStreams: function(arrayOfMediaStreams) {},
// replace with set of your own streams
resetVideoStreams: function(arrayOfMediaStreams) {},
// clear all the data
clearRecordedData: function() {}
};License
MultiStreamsMixer.js is released under MIT licence . Copyright (c) Muaz Khan.