66 lines
1.9 KiB
C++
66 lines
1.9 KiB
C++
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#ifndef WinMfImageGrabber_h__
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#define WinMfImageGrabber_h__
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#include <mfidl.h>
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#include "../RawBuffer.h"
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#include "../Types.h"
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namespace LifeCore {
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class WebCamera;
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class WinMfImageGrabber : IMFSampleGrabberSinkCallback {
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public:
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WinMfImageGrabber(WebCamera* cam);
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~WinMfImageGrabber();
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HRESULT initImageGrabber(IMFMediaSource *pSource, GUID VideoFormat);
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HRESULT startGrabbing(void);
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void stopGrabbing();
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// IUnknown methods
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STDMETHODIMP QueryInterface(REFIID iid, void** ppv);
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STDMETHODIMP_(ULONG) AddRef();
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STDMETHODIMP_(ULONG) Release();
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// IMFClockStateSink methods
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STDMETHODIMP OnClockStart(MFTIME hnsSystemTime, LONGLONG llClockStartOffset);
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STDMETHODIMP OnClockStop(MFTIME hnsSystemTime);
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STDMETHODIMP OnClockPause(MFTIME hnsSystemTime);
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STDMETHODIMP OnClockRestart(MFTIME hnsSystemTime);
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STDMETHODIMP OnClockSetRate(MFTIME hnsSystemTime, float flRate);
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// IMFSampleGrabberSinkCallback methods
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STDMETHODIMP OnSetPresentationClock(IMFPresentationClock* pClock);
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STDMETHODIMP OnProcessSample(REFGUID guidMajorMediaType, DWORD dwSampleFlags,
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LONGLONG llSampleTime, LONGLONG llSampleDuration, const BYTE * pSampleBuffer,
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DWORD dwSampleSize);
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STDMETHODIMP OnShutdown();
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bool processGrabbing();
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RawBuffer<uint8>* GetImage();
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private:
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WebCamera* camera;
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long m_cRef;
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//IMFMediaSource *ig_pSource;
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IMFMediaSession *ig_pSession;
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IMFTopology *ig_pTopology;
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RawBuffer<uint8>* buffer_first;
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RawBuffer<uint8>* buffer_second;
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RawBuffer<uint8>* buffer_active;
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HRESULT CreateTopology(IMFMediaSource *pSource, IMFActivate *pSinkActivate, IMFTopology **ppTopo);
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HRESULT AddSourceNode(
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IMFTopology *pTopology,
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IMFMediaSource *pSource,
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IMFPresentationDescriptor *pPD,
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IMFStreamDescriptor *pSD,
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IMFTopologyNode **ppNode);
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HRESULT AddOutputNode(
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IMFTopology *pTopology,
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IMFActivate *pActivate,
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DWORD dwId,
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IMFTopologyNode **ppNode);
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};
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}
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#endif // WinMfImageGrabber_h__
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