V-Tom

// Run from the dev tools console of any Youtube video
// Accurate as of June 12, 2016
var videoUrls = {};
ytplayer.config.args.url_encoded_fmt_stream_map.split(',').forEach(function (item) {
  var obj = {};

  item.split('&').forEach(function (param) {
    param = param.split('=');
    obj[param[0]] = decodeURIComponent(param[1]);
  });