This feature is well established and works across many devices and browser versions. It’s been available across browsers since September 2017.
The addTrack() method of the MediaStream interface adds a new track to the stream. The track is specified as a parameter of type MediaStreamTrack.
Note: If the specified track is already in the stream's track set, this method has no effect.
addTrack(track)
trackA MediaStreamTrack to add to the stream.
None (undefined).
| Specification |
|---|
| Media Capture and Streams> # dom-mediastream-addtrack> |
| Desktop | Mobile | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Chrome | Edge | Firefox | Opera | Safari | Chrome Android | Firefox for Android | Opera Android | Safari on IOS | Samsung Internet | WebView Android | WebView on iOS | |
addTrack |
26 | 12 | 44 | 15 | 11 | 26 | 44 | 14 | 11 | 1.5 | 37 | 11 |
MediaStream, the interface it belongs to.
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https://developer.mozilla.org/en-US/docs/Web/API/MediaStream/addTrack