MediaStream.getVideoTracks

The getVideoTracks() property of the MediaStream interface returns a sequence of MediaStreamTrack objects representing the video tracks in this stream.

Syntax

var mediaStreamTracks[] = mediaStream.getVideoTracks()

Parameters

None.

Return value

An array of MediaStreamTrack.

Exceptions

Example

The following example, extracted from Chrome's Image Capture / Photo Resolution Sample, uses getVideoTracks() to retrieve a track for passing to the ImageCapture() constructor.

const input = document.querySelector('input[type="range"]');

var imageCapture;

navigator.mediaDevices.getUserMedia({video: true})
.then(mediaStream => {
  document.querySelector('video').srcObject = mediaStream;

  const track = mediaStream.getVideoTracks()[0];
  imageCapture = new ImageCapture(track);

  return imageCapture.getPhotoCapabilities();
})

Specifications

Browser Compatibility