DECLARE_INTERFACE_(ID3D11VideoContext, ID3D11DeviceContext)
{
    // 省略了其他继承的成员

    // Video Decoder methods
    virtual HRESULT STDMETHODCALLTYPE GetDecoderBuffer(
        /* [annotation] */
        _In_  ID3D11VideoDecoder *pDecoder,
        D3D11_VIDEO_DECODER_BUFFER_TYPE Type,
        /* [annotation] */
        _Out_  UINT *pBufferSize,
        /* [annotation] */
        _Outptr_result_bytebuffer_(*pBufferSize)  void **ppBuffer) = 0;

    virtual HRESULT STDMETHODCALLTYPE ReleaseDecoderBuffer(
        /* [annotation] */
        _In_  ID3D11VideoDecoder *pDecoder,
        /* [annotation] */
        _In_  UINT BufferType) = 0;

    virtual HRESULT STDMETHODCALLTYPE DecoderBeginFrame(
        /* [annotation] */
        _In_  ID3D11VideoDecoder *pDecoder,
        /* [annotation] */
        _In_  ID3D11VideoDecoderOutputView *pView,
        /* [annotation] */
        _In_  UINT ContentKeySize,
        /* [annotation] */
        _In_reads_opt_(ContentKeySize)  const void *pContentKey) = 0;

    // 更多方法...

    // Video Processor methods
    // ...

    // Video Processor Enumerator methods
    // ...

    // Video Processor Input methods
    // ...

    // Video Processor Output methods
    // ...

    // 更多方法...

    // Video MFT methods
    // ...

    // More methods...
};