filename extension

 
var fileName = url.parse(videoReq.fileurl).pathname.split('/').pop().split('.').shift();

 
   //x.avi -> x-360p.mp4
   var fileName  = $scope.video.path.file.split('.').shift();
   var mp4fileName  = fileName+"-360p.mp4"
   console.log('mp4fileName = '+  mp4fileName);
   $scope.video.path.file = mp4fileName;