HTML5 getUserMedia record webcam, both audio and video

Question

Is it possible to use Chrome to capture video (webcam) and audio (microphone) from the browser and then save the stream as video file?

I would like to use this to create a video/photobooth-like application that allows users to record a simple (30 second) message (both video and audio) to files that can later be watched.

I have read the documentation but I have not (yet) seen any examples on how to capture both audio & video, also I did not find a way yet to store the results in a video file.

Who can help?

Answer 1

MediaStreamRecorder is a WebRTC API for recording getUserMedia() streams( still under implementation) . It allows web apps to create a file from a live audio/video session.

<script language="javascript" type="text/javascript">
function onVideoFail(e) {
    console.log('webcam fail!', e);
  };

function hasGetUserMedia() {
  // Note: Opera is unprefixed.
  return !!(navigator.getUserMedia || navigator.webkitGetUserMedia ||
            navigator.mozGetUserMedia || navigator.msGetUserMedia);
}

if (hasGetUserMedia()) {
  // Good to go!
} else {
  alert('getUserMedia() is not supported in your browser');
}

window.URL = window.URL || window.webkitURL;
navigator.getUserMedia  = navigator.getUserMedia || 
                         navigator.webkitGetUserMedia ||
                          navigator.mozGetUserMedia || 
                           navigator.msGetUserMedia;

var video = document.querySelector('video');
var streamRecorder;
var webcamstream;

if (navigator.getUserMedia) {
  navigator.getUserMedia({audio: true, video: true}, function(stream) {
    video.src = window.URL.createObjectURL(stream);
    webcamstream = stream;
//  streamrecorder = webcamstream.record();
  }, onVideoFail);
} else {
    alert ('failed');
}

function startRecording() {
    streamRecorder = webcamstream.record();
    setTimeout(stopRecording, 10000);
}
function stopRecording() {
    streamRecorder.getRecordedData(postVideoToServer);
}
function postVideoToServer(videoblob) {

    var data = {};
    data.video = videoblob;
    data.metadata = 'test metadata';
    data.action = "upload_video";
    jQuery.post("http://www.foundthru.co.uk/uploadvideo.php", data, onUploadSuccess);
}
function onUploadSuccess() {
    alert ('video uploaded');
}

</script>

<div id="webcamcontrols">
    <button class="recordbutton" onclick="startRecording();">RECORD</button>
</div>

http://www.w3.org/TR/mediastream-recording/