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

1. Main Demo: https://www.webrtc-experiment.com/MultiStreamsMixer/
2. Record Multiple Cameras
3. Record Camera+Screen

> Pass multiple streams (e.g. screen+camera or multiple-cameras) and get single stream.

Link the library

``html

`

Or link specific build:

* https://github.com/muaz-khan/MultiStreamsMixer/releases

Or install using NPM:

`sh
npm install multistreamsmixer
`

And import/require:

`javascript
const MultiStreamsMixer = require('multistreamsmixer');
import MultiStreamsMixer from 'multistreamsmixer';
`

How to mix audios?

`javascript
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?

`javascript
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?

`javascript
const mixer = new MultiStreamsMixer([camera1, camera2]);

rtcPeerConnection.addStream(mixer.getMixedStream());

mixer.frameInterval = 1;
mixer.startDrawingFrames();
`

API

1. getMixedStream: (function) returns mixed MediaStream object
2. frameInterval: (property) allows you set frame interval
3. startDrawingFrames: (function) start mixing video streams
4. resetVideoStreams: (function) replace all existing video streams with new ones
5. releaseStreams: (function) stop mixing streams
6. appendStreams: (function) append extra/new streams (anytime)

TypeScript / Angular

`javascript
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 or



`javascript
var canvas = document.querySelector('canvas.multi-streams-mixer');
var videos = document.querySelectorAll('video.multi-streams-mixer');

canvas.style.opacity = .1;
`

API

`javascript
// 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.