Modern gUM Demo showing stream.id

Shows stream.id in Firefox Dev Edition.

by jib1

HTML

<video id="v" height="120" width="160" autoplay></video><br>
<button onclick="start()">Start!</button><div id="div"></div>

JavaScript

function start() {
  navigator.mediaDevices.getUserMedia({ video: true })
  .then(stream => {
      log("stream.id = " + stream.id);
      log("track.id = " + stream.getVideoTracks()[0].id);
      v.mozSrcObject = stream;
  })
  .catch(failed);
}

var log = msg => div.innerHTML += "<p>" + msg + "</p>";
var failed = e =>log(e.name + ": " + e.message + " line " + e.lineNumber);