Camera::Camera(bool Show,bool Start) : eHandler(this),_realData(false),_UpdateWindow(Show),_LastData(0),_CurData(0) {
DWORD no;
IGraphBuilder *graph = 0;
ctrl = 0;
ICreateDevEnum *devs = 0;
IEnumMoniker *cams = 0;
IMoniker *mon = 0;
IBaseFilter *cam = 0;
IEnumPins *pins = 0;
IPin *pin = 0;
IEnumFilters *fil = 0;
IBaseFilter *rnd = 0;
IMemInputPin *mem = 0;
curCamera = this;
_isOn = Start;
CoCreateInstance( CLSID_FilterGraph, 0, CLSCTX_INPROC,IID_IGraphBuilder, (void **)&graph );
graph->QueryInterface( IID_IMediaControl, (void **)&ctrl );
CoCreateInstance (CLSID_SystemDeviceEnum, 0, CLSCTX_INPROC, IID_ICreateDevEnum, (void **) &devs);
devs->CreateClassEnumerator (CLSID_VideoInputDeviceCategory, &cams, 0);
cams->Next (1,&mon,0); // get first found capture device (webcam)
mon->BindToObject(0,0,IID_IBaseFilter, (void**)&cam);
graph->AddFilter(cam, L"Capture Source"); // add web cam to graph as source
cam->EnumPins(&pins); // we need output pin to autogenerate rest of the graph
pins->Next(1,&pin, 0); // via graph->Render
graph->Render(pin); // graph builder now builds whole filter chain including MJPG decompression on some webcams
graph->EnumFilters(&fil); // from all newly added filters
fil->Next(1,&rnd,0); // we find last one (renderer)
rnd->EnumPins(&pins); // because data we are intersted in are pumped to renderers input pin
pins->Next(1,&pin, 0); // via Receive member of IMemInputPin interface
pin->QueryInterface(IID_IMemInputPin,(void**)&mem);
DsHook(mem,6,Receive); // so we redirect it to our own proc to grab image data
if (Start) this->Start();
}
void TestCamera()
{
InitOpenCL();
//TCHAR szDeviceName[80];
//TCHAR szDeviceVersion[80];
//for (int wIndex = 0; wIndex < 10; wIndex++)
//{
// if (capGetDriverDescription(
// wIndex,
// szDeviceName,
// sizeof (szDeviceName),
// szDeviceVersion,
// sizeof (szDeviceVersion)
// ))
// {
// // Append name to list of installed capture drivers
// // and then let the user select a driver to use.
// }
//}
//HWND hWndC = capCreateCaptureWindow(TEXT("PunkCapture"),
// WS_CHILD | WS_VISIBLE, 0, 0, 160, 120, *System::Window::Instance(), 1);
//SendMessage (hWndC, WM_CAP_DRIVER_CONNECT, 0, 0L);
////
//// Or, use the macro to connect to the MSVIDEO driver:
//// fOK = capDriverConnect(hWndC, 0);
////
//// Place code to set up and capture video here.
////
////capDriverDisconnect (hWndC);
//CAPDRIVERCAPS CapDriverCaps = { };
//CAPSTATUS CapStatus = { };
//capDriverGetCaps(hWndC, &CapDriverCaps, sizeof(CAPDRIVERCAPS));
//// Video source dialog box.
//if (CapDriverCaps.fHasDlgVideoSource)
//{
// capDlgVideoSource(hWndC);
//}
//// Video format dialog box.
//if (CapDriverCaps.fHasDlgVideoFormat)
//{
// capDlgVideoFormat(hWndC);
// // Are there new image dimensions?
// capGetStatus(hWndC, &CapStatus, sizeof (CAPSTATUS));
// // If so, notify the parent of a size change.
//}
//// Video display dialog box.
//if (CapDriverCaps.fHasDlgVideoDisplay)
//{
// capDlgVideoDisplay(hWndC);
//}
HRESULT hr;
IGraphBuilder* graph= 0; hr = CoCreateInstance( CLSID_FilterGraph, 0, CLSCTX_INPROC,IID_IGraphBuilder, (void **)&graph );
IMediaControl* ctrl = 0; hr = graph->QueryInterface( IID_IMediaControl, (void **)&ctrl );
ICreateDevEnum* devs = 0; hr = CoCreateInstance (CLSID_SystemDeviceEnum, 0, CLSCTX_INPROC, IID_ICreateDevEnum, (void **) &devs);
IEnumMoniker* cams = 0; hr = devs?devs->CreateClassEnumerator (CLSID_VideoInputDeviceCategory, &cams, 0):0;
IMoniker* mon = 0; hr = cams->Next (1,&mon,0); // get first found capture device (webcam?)
IBaseFilter* cam = 0; hr = mon->BindToObject(0,0,IID_IBaseFilter, (void**)&cam);
hr = graph->AddFilter(cam, L"Capture Source"); // add web cam to graph as source
IEnumPins* pins = 0; hr = cam?cam->EnumPins(&pins):0; // we need output pin to autogenerate rest of the graph
IPin* pin = 0; hr = pins?pins->Next(1,&pin, 0):0; // via graph->Render
hr = graph->Render(pin); // graph builder now builds whole filter chain including MJPG decompression on some webcams
IEnumFilters* fil = 0; hr = graph->EnumFilters(&fil); // from all newly added filters
IBaseFilter* rnd = 0; hr = fil->Next(1,&rnd,0); // we find last one (renderer)
hr = rnd->EnumPins(&pins); // because data we are intersted in are pumped to renderers input pin
hr = pins->Next(1,&pin, 0); // via Receive member of IMemInputPin interface
IMemInputPin* mem = 0; hr = pin->QueryInterface(IID_IMemInputPin,(void**)&mem);
DsHook(mem,6,Receive); // so we redirect it to our own proc to grab image data
hr = ctrl->Run();
};
