KinectCam/Dll.cpp at nv12 · VisualError/KinectCam · GitHub

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//////////////////////////////////////////////////////////////////////////
//  This file contains routines to register / Unregister the
//  Directshow filter 'Virtual Cam'
//  We do not use the inbuilt BaseClasses routines as we need to register as
//  a capture source
//////////////////////////////////////////////////////////////////////////

#include <streams.h>
#include <initguid.h>
#include <dllsetup.h>
#include "KinectVirtualCamera.h"

#define CreateComObject(clsid, iid, var) CoCreateInstance( clsid, NULL, CLSCTX_INPROC_SERVER, iid, (void **)&var);

STDAPI AMovieSetupRegisterServer( CLSID   clsServer, LPCWSTR szDescription, LPCWSTR szFileName, LPCWSTR szThreadingModel = L"Both", LPCWSTR szServerType     = L"InprocServer32" );
STDAPI AMovieSetupUnregisterServer( CLSID clsServer );

// {8E14549A-DB61-4309-AFA1-3578E927E933}
DEFINE_GUID(CLSID_VirtualCam,
            0x8e14549a, 0xdb61, 0x4309, 0xaf, 0xa1, 0x35, 0x78, 0xe9, 0x27, 0xe9, 0x33);

const AMOVIESETUP_MEDIATYPE AMSMediaTypesVCam =
{
    &MEDIATYPE_Video,
    &MEDIASUBTYPE_NULL
};

const AMOVIESETUP_PIN AMSPinVCam=
{
    L"Output",             // Pin string name
    FALSE,                 // Is it rendered
    TRUE,                  // Is it an output
    FALSE,                 // Can we have none
    FALSE,                 // Can we have many
    &CLSID_NULL,           // Connects to filter
    NULL,                  // Connects to pin
    1,                     // Number of types
    &AMSMediaTypesVCam      // Pin Media types
};

const AMOVIESETUP_FILTER AMSFilterVCam =
{
    &CLSID_VirtualCam,  // Filter CLSID
    g_wszFilterName,     // String name
    MERIT_DO_NOT_USE,      // Filter merit
    1,                     // Number pins
    &AMSPinVCam,             // Pin details
};

CFactoryTemplate g_Templates[] =
{
    {
        g_wszFilterName,
        &CLSID_VirtualCam,
        CKinectVirtualSource::CreateInstance,
        NULL,
        &AMSFilterVCam
    },

};

int g_cTemplates = sizeof(g_Templates) / sizeof(g_Templates[0]);

STDAPI RegisterFilters(BOOL bRegister)
{
    HRESULT hr = NOERROR;
    WCHAR achFileName[MAX_PATH];
    char achTemp[MAX_PATH];
    ASSERT(g_hInst != 0);

    if (0 == GetModuleFileNameA(g_hInst, achTemp, sizeof(achTemp)))
        return AmHresultFromWin32(GetLastError());

    MultiByteToWideChar(CP_ACP, 0L, achTemp, lstrlenA(achTemp) + 1,
        achFileName, NUMELMS(achFileName));

    hr = CoInitialize(0);
    if (bRegister)
    {
        hr = AMovieSetupRegisterServer(CLSID_VirtualCam, g_wszFilterName, achFileName, L"Both", L"InprocServer32");
    }

    if (SUCCEEDED(hr))
    {
        IFilterMapper2* fm = 0;
        hr = CreateComObject(CLSID_FilterMapper2, IID_IFilterMapper2, fm);
        if (SUCCEEDED(hr))
        {
            if (bRegister)
            {
                IMoniker* pMoniker = 0;
                REGFILTER2 rf2;
                rf2.dwVersion = 1;
                rf2.dwMerit = MERIT_DO_NOT_USE;
                rf2.cPins = 1;
                rf2.rgPins = &AMSPinVCam;
                hr = fm->RegisterFilter(CLSID_VirtualCam, g_wszFilterName, &pMoniker, &CLSID_VideoInputDeviceCategory, NULL, &rf2);
            }
            else
            {
                hr = fm->UnregisterFilter(&CLSID_VideoInputDeviceCategory, 0, CLSID_VirtualCam);
            }
        }

        // release interface
        //
        if (fm)
            fm->Release();
    }

    if (SUCCEEDED(hr) && !bRegister)
        hr = AMovieSetupUnregisterServer(CLSID_VirtualCam);

    CoFreeUnusedLibraries();
    CoUninitialize();
    return hr;
}

STDAPI DllRegisterServer()
{
    return RegisterFilters(TRUE);
}


STDAPI DllUnregisterServer()
{
    return RegisterFilters(FALSE);
}

extern "C" BOOL WINAPI DllEntryPoint(HINSTANCE, ULONG, LPVOID);

BOOL APIENTRY DllMain(HANDLE hModule, DWORD  dwReason, LPVOID lpReserved)
{
	return DllEntryPoint((HINSTANCE)(hModule), dwReason, lpReserved);
}