How To Check With Javascript That Webcam Is Being Used In Chrome

If webcam is being used in Chrome, there will be a red dot on the tab for that page. And if other pages try to access webcam will get black for video. My question is, is it able to

Solution 1:

Try instead using the enabled and readyState properties of the MediaStreamTrackobject. You can then use a JavaScript array function such as some() to iterate through the tracks and check if any have enabled set to true and && readyState equal to string 'live":

navigator.getUserMedia = (navigator.getUserMedia ||
  navigator.webkitGetUserMedia ||
  navigator.mozGetUserMedia ||
  navigator.msGetUserMedia);

if (navigator.getUserMedia) {
  navigator.getUserMedia({
      audio: true,
      video: true
    },
    function(stream) {
      // returns true if any tracks have active state of truevar result = stream.getVideoTracks().some(function(track) {
        return track.enabled && track.readyState === 'live';
      });

      if (result) {
        alert('Your webcam is busy!');
      } else {
        alert('Not busy');
      }
    },
    function(e) {
      alert("Error: " + e.name);
    });
}

Hopefully that helps!