gistfile1.txt

var initializeVideoStream = function(stream) {
  var video = document.getElementById('videoTag');
  if (typeof (video.srcObject) !== 'undefined') {
    video.srcObject = stream;
  }
  else {
    video.src = URL.createObjectURL(stream);
  }
  
  // 止まっている場合は強制的に再生
  if (video.paused) video.play(); 
};

navigator.getUserMedia({ video: true }, initializeVideoStream, getUserMediaError);