FrameMetadataFactory.h

#pragma once
 
#include "FrameMetadata.h"
 
class FrameMetadataFactory
{
public:
    template<class T>
    static T* downcast(framemetadata_sp metadata)
    {
        auto ptr = dynamic_cast<T*>(metadata.get());
        if (!ptr)
        {
            throw AIPException(AIP_FATAL, "Wrong casting.");
        }
 
        return ptr;
    }   
    static T* downcast(framemetadata_sp metadata) {…}
};
class FrameMetadataFactory {…};