cVidCapDirect.h

Go to the documentation of this file.

//
//
 
#ifndef _INC_cVidCapDirect_H
#define _INC_cVidCapDirect_H
#ifndef NO_PRAGMA_ONCE
#pragma once
#endif
 
#include "cDirectShow.h"
 
#if defined(USE_DX_SHOW)
#include "../Image/cSurface.h"
#include "GrayCore/include/cThreadLock.h"
 
MIDL_INTERFACE("56a86895-0ad4-11ce-b03a-0020af0ba770") IBaseFilter;
MIDL_INTERFACE("56a868b4-0ad4-11ce-b03a-0020af0ba770") IVideoWindow;
MIDL_INTERFACE("93E5A4E0-2D50-11d2-ABFA-00A0C9C6E38D") ICaptureGraphBuilder2;
MIDL_INTERFACE("36b73882-c2c8-11cf-8b46-00805f6cef60") IFilterGraph2;   // derived from IGraphBuilder
MIDL_INTERFACE("56a86891-0ad4-11ce-b03a-0020af0ba770") IPin;
MIDL_INTERFACE("6B652FFF-11FE-4fce-92AD-0266B5D7C78F") ISampleGrabber;
enum _PinDirection;
 
namespace GrayLib
{
        class GRAYLIB_LINK cDirectSampleGrabberCB;
 
        class GRAYLIB_LINK cVidCapDirect : public cDirectShowObj
        {
 
                friend class cDirectSampleGrabberCB;
                typedef cDirectShowObj SUPER_t;
 
        protected:
                cIUnkPtr<IBaseFilter> m_pSource;                
                cIUnkPtr<ISampleGrabber> m_pGrabber;            
                cIUnkPtr<IUnknown> m_pGrabberCB;                        
                cIUnkPtr<ICaptureGraphBuilder2> m_pCapture;     
 
                REFTIME m_dblSampleTime;                        
                cSurface m_Surf;                                        
                mutable cThreadLockCount m_LockSurf;            
 
        protected:
                HRESULT FindPin(IBaseFilter* pFilter, enum _PinDirection dirrequired, int nPinNum, cIUnkPtr<IPin>& rpPin);
                HRESULT FindPinIn(IBaseFilter* pFilter, int nPinNum, cIUnkPtr<IPin>& rpPin);
                HRESULT FindPinOut(IBaseFilter* pFilter, int nPinNum, cIUnkPtr<IPin>& rpPin);
 
        public:
                cVidCapDirect(IBaseFilter* pSource = nullptr);
                virtual ~cVidCapDirect();
 
                REFTIME get_SampleTime() const
                {
                        return m_dblSampleTime;
                }
 
                void put_Source(IBaseFilter* pSource);
                const cSurface& get_Surf() const
                {
                        return m_Surf;  // cSurfaceInfo and pixel data.
                }
 
                // HRESULT AddCaptureMonikerToGraph(IMoniker *pMoniker);
                HRESULT CreateVidCap(bool bOneShot);
                void CleanUp();
                virtual HRESULT GrabSample(cSurfaceBase& SurfCopy, bool bConvert = false);
 
                UNITTEST_FRIEND(cVidCapDirect);
        };
}
#endif
#endif  // _WIN32