MediaStream.getVideoTracks()

The getVideoTracks() method 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 objects, one for each video track contained in the media stream. Video tracks are those tracks whose kind property is video. The array is empty if the stream contains no video tracks.

Note: The order of the tracks is not defined by the specification, and may not be the same from one call to getVideoTracks() to another.

Early versions of this API included a special VideoStreamTrack interface which was used as the type for each entry in the list of video streams; however, this has since been merged into the main MediaStreamTrack interface.

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. 

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

Specification Status Comment
Media Capture and Streams
The definition of 'getVideoTracks()' in that specification.
Candidate Recommendation Initial definition.

Browser compatibility

Update compatibility data on GitHub
DesktopMobile
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidFirefox for AndroidOpera for AndroidSafari on iOSSamsung Internet
getVideoTracks
Experimental
Chrome Full support 26Edge Full support 12Firefox Full support 22
Notes
Full support 22
Notes
Notes Prior to Firefox 64, this method returned an array of VideoStreamTrack objects. However, MediaStreamTrack has now subsumed that interface's functionality.
IE No support NoOpera Full support YesSafari Full support YesWebView Android Full support 37Chrome Android Full support 26Firefox Android Full support 22
Notes
Full support 22
Notes
Notes Prior to Firefox 64, this method returned an array of VideoStreamTrack objects. However, MediaStreamTrack has now subsumed that interface's functionality.
Opera Android No support NoSafari iOS Full support YesSamsung Internet Android Full support Yes

Legend

Full support  
Full support
No support  
No support
Experimental. Expect behavior to change in the future.
Experimental. Expect behavior to change in the future.
See implementation notes.
See implementation notes.

Document Tags and Contributors

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