function ProcessReaderData(READER $rdr, LOGGROUP $grp, $from = 0, $to = 0, $filter_data) { if (!$filter_data) { $filter_data = array(); } $data = $rdr->GetRawData($grp, $from, $to, $this, $filter_data); return $this->filter->Process($this->Process($data, $filter_data), $filter_data); }