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#ifndef DIRECTSHOWOBJECT_H
#define DIRECTSHOWOBJECT_H

#include "directshowglobal.h"

QT_BEGIN_NAMESPACE

#define COM_REF_MIXIN \
    volatile ULONG m_ref = 1;                              \
public:                                                    \
    STDMETHODIMP_(ULONG) AddRef() override                 \
    {                                                      \
        return InterlockedIncrement(&m_ref);               \
    }                                                      \
    STDMETHODIMP_(ULONG) Release() override                \
    {                                                      \
        const ULONG ref = InterlockedDecrement(&m_ref);    \
        if (ref == 0)                                      \
            delete this;                                   \
        return ref;                                        \
    }

QT_END_NAMESPACE

#endif // DIRECTSHOWOBJECT_H