JS Camera Rotate Example SRC

<center>
  <video id="video" autoplay hidden>
  </video> <canvas id="canvas" width="500" height="500" style="border:0px solid">
  <script>
  var video = document.getElementById("video");
  var c = document.getElementById("canvas");
  var ctx = c.getContext("2d");
  var i=0; var canvas = document.getElementById('canvas');
  var context = canvas.getContext('2d');
  var video = document.getElementById('video');
  var mediaConfig = { video: true,audio:true};
  navigator.mediaDevices.getUserMedia(mediaConfig).then(function(stream) {
  video.src = this.window.URL.createObjectURL(stream);
  video.play(); video.addEventListener("play", function() {
  i = window.setInterval(function() {
  ctx.drawImage(video,0,0,500,500)},25);
    var c = document.getElementById("canvas");
    var ctx = c.getContext("2d");
    ctx.clearRect(10, 0, c.width, c.height);
    var img = document.getElementById("canvas")
    ctx.rotate(20* i++*Math.PI / 180);
  }, false); });
  </script>
  </center>