443 struct C2InterfaceHelper::FactoryImpl : public C2InterfaceHelper::Factory {  struct in C2InterfaceHelper
444     virtual std::shared_ptr<C2ParamReflector> getReflector() const override {  in getReflector()
449     getParamHelper(const ParamRef &param) const override {  in getParamHelper()
454     FactoryImpl(std::shared_ptr<C2ParamReflector> reflector)  in FactoryImpl()  function
459     void addParam(std::shared_ptr<ParamHelper> param) {  in addParam()
478     std::shared_ptr<ParamHelper> getParam(C2Param::Index ix) const {  in getParam()
490     std::shared_ptr<C2Param> getParamValue(C2Param::Index ix) const {  in getParamValue()
495     c2_status_t querySupportedParams(  in querySupportedParams()
506     size_t getDependencyIndex(C2Param::Index ix) {  in getDependencyIndex()
514     std::map<ParamRef, std::shared_ptr<ParamHelper>> _mParams;
515     std::map<C2Param::Index, std::shared_ptr<ParamHelper>> _mIndexToHelper;
516     std::shared_ptr<C2ParamReflector> _mReflector;
517     std::map<C2Param::Index, size_t> _mDependencyIndex;