protected function createConversionInDb($entry_id, $full_file_name, $conv_cmd = null)
 {
     try {
         $conversion = new conversion();
         $entry_id = self::getEntryIdFromFileName($full_file_name);
         $conversion->setEntryId($entry_id);
         $conversion->setInFileName($full_file_name);
         $conversion->setInFileExt(pathinfo($full_file_name, PATHINFO_EXTENSION));
         $conversion->setInFileSize(filesize($full_file_name));
         $conversion->setStatus(conversion::CONVERSION_STATUS_PRECONVERT);
         if ($conv_cmd) {
             // TODO - find a better way to serialize the params !
             $conversion->setConversionParams(print_r($conv_cmd->conversion_params_list, true));
         }
         $conversion->save();
     } catch (Exception $ex) {
         // Do NOT fail the actual conversion
         KalturaLog::debug("Problem reporting conversion details to DB (part I) " . $ex->getTraceAsString());
     }
 }