copyVideoTracks

copyVideoTracks(sourceStream, destinationStream) replaces the destination's video tracks with clones of the source's. The destination's existing video tracks are removed first (via removeVideoTracks), so calling it twice doesn't accumulate tracks. For audio use copyAudioTracks. Part of pota/use/stream.

Arguments

Argument	Type	Description
sourceStream	MediaStream	Stream whose video tracks are cloned.
destinationStream	MediaStream	Stream that receives the cloned tracks.

Returns: nothing — it mutates destinationStream in place.

Examples

Swap in a camera

Capture a camera and copy its video onto a destination stream, leaving any existing audio tracks on the destination untouched.

import { copyVideoTracks } from 'pota/use/stream'

const cam = await navigator.mediaDevices.getUserMedia({
	video: true,
})

const output = new MediaStream()
copyVideoTracks(cam, output)