90 lines
2.3 KiB
C++
90 lines
2.3 KiB
C++
#pragma once
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#include <vector>
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#include <functional>
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#include <dshow.h>
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#include <windows.h>
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#include "qedit.h"
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#include <mutex>
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#include <vector>
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#include "guiddef.h"
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using namespace std;
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class Camera
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{
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public:
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enum CAP_STATUS {
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RUNNING = 1,
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STOP = 2,
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PAUSE = 3,
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FAIL = 4,
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};
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class CameraObserver {
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public:
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virtual int OnCameraData(uint8_t *dat, uint32_t size) { return 0; };
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};
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Camera(wstring camera);
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Camera(const Camera &) = delete;
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Camera& operator =(const Camera&) = delete;
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~Camera();
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private:
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Camera();
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bool mInitOK;
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bool mIsVideoOpened;
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int mVideoWidth, mVideoHeight, mBitDepth;
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std::function<void(double, BYTE *, LONG)> mFrameCallBack;
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private:
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class SampleGrabberCallback : public ISampleGrabberCB
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{
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public:
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ULONG STDMETHODCALLTYPE AddRef();
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ULONG STDMETHODCALLTYPE Release();
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HRESULT STDMETHODCALLTYPE QueryInterface(REFIID riid, void** ppvObject);
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HRESULT STDMETHODCALLTYPE SampleCB(double Time, IMediaSample *pSample);
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HRESULT STDMETHODCALLTYPE BufferCB(double Time, BYTE *pBuffer, long BufferLen);
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std::function<void(double, BYTE *, LONG)> mNewDataCallBack;
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mutex mMux;
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int SetObserver(CameraObserver *);
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int RemoveObserver(CameraObserver *p);
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private:
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vector<CameraObserver*> mObserver;
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};
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IGraphBuilder *mGraphBuilder;
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ICaptureGraphBuilder2 *mCaptureGB;
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IMediaControl *mMediaControl;
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IBaseFilter *mDevFilter;
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ISampleGrabber *mSampGrabber;
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IMediaEventEx *mMediaEvent;
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SampleGrabberCallback mSampleGrabberCB;
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HRESULT InitializeEnv();
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HRESULT BindFilter(int deviceID, IBaseFilter **pBaseFilter);
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GUID mMediaType;
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bool mDebug;
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public:
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int SetObserver(CameraObserver *);
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int RemoveObserver(CameraObserver *p);
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CAP_STATUS mStatus;
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void SetDebug(bool);
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static std::vector<std::wstring> EnumAllCamera(void);
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GUID mPixFmt;
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bool Open(std::wstring &camera_name);
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bool Close(void);
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/*!
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* @param time : Starting time of the sample, in seconds.
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* @param buff : Pointer to a buffer that contains the sample data.
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* @param len : Length of the buffer pointed to by pBuffer, in bytes.
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*/
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void SetCallBack(std::function<void(double time, BYTE *buff, LONG len)>);
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int GetHeight() { return mVideoHeight; }
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int GetWidth() { return mVideoWidth; }
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int GetBitDepth() { return mBitDepth; }
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GUID MediaType();
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};
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