protected function createFlvWrappersForTargets(kConversionResult $conv_res)
 {
     if (!$conv_res) {
         return;
     }
     $res_info_list = $conv_res->result_info;
     if (!$res_info_list) {
         return;
     }
     foreach ($res_info_list as $res_info) {
         if ($res_info->res) {
             // TODO -enough to return the helpers ??
             myFlvStaticHandler::createHelpers($res_info->target);
         }
     }
 }