Method ToOpt

src/core/utils.h:107–107

    public:
        OptionMapperImpl(T(FFMS_Struct::*ptr), const char *name) : ptr(ptr), name(name) {}
        void ToOpt(FFMS_Struct const& src, void *dst) const { optdetail::set_av_opt(dst, name, src.*ptr); }
        void FromOpt(FFMS_Struct &dst, void *src) const { dst.*ptr = optdetail::get_av_opt<T>(src, name); }
    };