getusermedia

by asddfasdf

JavaScript

function createElem (tagName) {
  var elem = document.createElement(tagName)
  elem.controls = true
  elem.autoplay = true // for chrome
  elem.play() // for firefox
  document.body.appendChild(elem)
  return elem
}

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

navigator.getUserMedia({ video: true, audio: false }, function (stream) {
  var recorder = new MediaRecorder(stream)
  var wrapper = new MediaSource()

  var elem = createElem('video')
  elem.src = URL.createObjectURL(wrapper)
  wrapper.addEventListener('sourceopen', sourceOpen)

  function sourceOpen () {
    var source = wrapper.addSourceBuffer('video/webm;codecs=vp9')
    recorder.ondataavailable = function (e) {
      source.appendBuffer(new Uint8Array(e.data))
    }
  }
  recorder.start(1000)
}, function () {})