MediaStream.getTracks() - Web APIs 编辑

Experimental

This is an experimental technology
Check the Browser compatibility table carefully before using this in production.

The getTracks() method of the MediaStream interface returns a sequence that represents all the MediaStreamTrack objects in this stream's track set, regardless of MediaStreamTrack.kind.

Syntax

var mediaStreamTracks = mediaStream.getTracks()

Parameters

None.

Return value

An array of MediaStreamTrack objects.

Example

navigator.mediaDevices.getUserMedia({audio: false, video: true})
.then(mediaStream => {
  document.querySelector('video').srcObject = mediaStream;
  // Stop the stream after 5 seconds
  setTimeout(() => {
    const tracks = mediaStream.getTracks()
    tracks[0].stop()
  }, 5000)
})

Specifications

Browser Compatibility

BCD tables only load in the browser

The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.