function formatFrames(seconds) {
    var npt = Ox.formatDuration(seconds, 3);
    var dotpos = npt.lastIndexOf(".");
    var mmStr = npt.substring(dotpos + 1, npt.length);
    var mmInt = parseInt(mmStr);
    var frames = parseInt((mmInt / 1000) * 24);
    var framesTc = '';
    var joinToken = ":";
    var framesTc = npt.substring(0, dotpos ) + joinToken + frames;
    return framesTc;
}

function isValidTimecode(tc) {
  var tc = $.trim(tc);
  var nptRegex = new RegExp("^[0-9][0-9]?\:[0-9][0-9]\:[0-9][0-9][\.|\,|\:][0-9]?[0-9]?[0-9]?$");
  return nptRegex.test(tc);
}

function getFileNameSansExt(filename) {
  var dotPos = filename.lastIndexOf(".");
  if (dotPos != '-1') {
    var filenameSansExt = filename.substring(0, dotPos);
  } else {
    var filenameSansExt = filename;
  }
  return filenameSansExt;
}