/**
  *
  * @param unknown_type $targetVid
  * @param unknown_type $wmWid
  * @param unknown_type $wmHgt
  * @return string
  */
 protected static function generateWatermarkParams($targetVid, $wmWid = KDLCmdlinePlaceholders::WaterMarkWidth, $wmHgt = KDLCmdlinePlaceholders::WaterMarkHeight)
 {
     /*
      * FFMpeg 2.7 automatically rotates the output 
      * into 'non-rotated' orientation. No need to do it explicitly 
      */
     $rotation = null;
     if (isset($targetVid->_rotation)) {
         $rotation = $targetVid->_rotation;
         $targetVid->_rotation = null;
     }
     $watermarkStr = parent::generateWatermarkParams($targetVid, $wmWid, $wmHgt);
     $targetVid->_rotation = $rotation;
     return $watermarkStr;
 }