navigator.getUserMedia = navigator.getUserMedia ||
                         navigator.webkitGetUserMedia ||
                         navigator.mozGetUserMedia;

    if (navigator.getUserMedia) {
    navigator.getUserMedia({ audio: true, video: { width: 1280, height: 720  }},
        function(stream) {
         var video = document.querySelector('video');
         video.srcObject = stream;
         video.onloadedmetadata = function(e) {
           video.play();
          };
         },
      function(err) {
         console.log("The following error occurred: " + err.name);
      }
   );
} else {
   console.log("getUserMedia not supported");
}