DMO 필터 사용하기

#include <Dmodshow.h>

IBaseFilter *pFilter;
hr = CoCreateInstance(CLSID_DMOWrapperFilter, NULL, 
        CLSCTX_INPROC_SERVER, IID_IBaseFilter, 
        reinterpret_cast(&pFilter));

if (SUCCEEDED(hr)) 
{
        // Query for IDMOWrapperFilter.
        IDMOWrapperFilter *pDmoWrapper;
        hr = pFilter->QueryInterface(IID_IDMOWrapperFilter, 
                reinterpret_cast<void**>(&pDmoWrapper));
        
        if (SUCCEEDED(hr)) 
        {     
                // Initialize the filter.
                hr = pDmoWrapper->Init(CLSID_DYNA_MPEG43DMO, CLSID_LegacyAmFilterCategory); 
                pDmoWrapper->Release();
                
                if (SUCCEEDED(hr)) 
                {
                        // Add the filter to the graph.
                        hr = m_pGB->AddFilter(pFilter, L"Mpeg43 Decoder DMO");
                }
        }
        pFilter->Release();
}

// Dmoguids.lib 라이브러리 추가