dmovideowatermark.cpp

DmoVideoWatermark 这是一个DMO组件

// DmoVideoWatermark.cpp : Implementation of DLL Exports.
/**
 ** Copyright (C) 2005 EnjoyView Inc., all rights reserved.
 **           Your View, Our Passion. Just Enjoy It!
 **
 **            http://spaces.msn.com/members/jemylu
 **
 **/

/*************************************************************************/

// Note: Proxy/Stub Information
//      To build a separate proxy/stub DLL, 
//      run nmake -f DmoVideoWatermarkps.mk in the project directory.

#include "stdafx.h"
#include "resource.h"

#define FIX_LOCK_NAME
#include <dmo.h>
#include <dmoimpl.h>
#include <amvideo.h>

#include <initguid.h>
#include "DmoVideoWatermark.h"
#include "flicker_ids.h"
//#include "DmoVideoWatermark_i.c"
#include "CFlickerLogo.h"

CComModule _Module;

BEGIN_OBJECT_MAP(ObjectMap)
OBJECT_ENTRY(CLSID_FlickerLogo, CFlickerLogo)
END_OBJECT_MAP()

/////////////////////////////////////////////////////////////////////////////
// DLL Entry Point

extern "C"
BOOL WINAPI DllMain(HINSTANCE hInstance, DWORD dwReason, LPVOID /*lpReserved*/)
{
    if (dwReason == DLL_PROCESS_ATTACH)
    {
        _Module.Init(ObjectMap, hInstance);//, &LIBID_DMOVIDEOWATERMARKLib);
        DisableThreadLibraryCalls(hInstance);
    }
    else if (dwReason == DLL_PROCESS_DETACH)
        _Module.Term();
    return TRUE;    // ok
}

/////////////////////////////////////////////////////////////////////////////
// Used to determine whether the DLL can be unloaded by OLE

STDAPI DllCanUnloadNow(void)
{
    return (_Module.GetLockCount()==0) ? S_OK : S_FALSE;
}

/////////////////////////////////////////////////////////////////////////////
// Returns a class factory to create an object of the requested type

STDAPI DllGetClassObject(REFCLSID rclsid, REFIID riid, LPVOID* ppv)
{
    return _Module.GetClassObject(rclsid, riid, ppv);
}

EXTERN_GUID( WMT_DMOCATEGORY_AUDIO_WATERMARK, 
0x65221c5a, 0xfa75, 0x4b39, 0xb5, 0x0c, 0x06, 0xc3, 0x36, 0xb6, 0xa3, 0xef );

EXTERN_GUID( WMT_DMOCATEGORY_VIDEO_WATERMARK, 
0x187cc922, 0x8efc, 0x4404, 0x9d, 0xaf, 0x63, 0xf4, 0x83, 0x0d, 0xf1, 0xbc );

#define _TEST_IN_GRAPHEDIT_

/////////////////////////////////////////////////////////////////////////////
// DllRegisterServer - Adds entries to the system registry

STDAPI DllRegisterServer(void)
{
#ifdef _TEST_IN_GRAPHEDIT_
	// For testing in GraphEdit, register this DMO to "DMO Video Effects" too.
	DMORegister(L"DMO Flicker Watermark", 
                CLSID_FlickerLogo, 
                DMOCATEGORY_VIDEO_EFFECT,
                0,
                0,
                NULL,
                0,
                NULL);
#endif // _TEST_IN_GRAPHEDIT_

	// Register ourselves as a DMO with no types
	// RGS file also registers with a merit of 0 so DShow won't try to use us
	// Notes: register to DMOCATEGORY_VIDEO_EFFECT for testing.
    DMORegister(L"DMO Flicker Watermark", 
                CLSID_FlickerLogo, 
                WMT_DMOCATEGORY_VIDEO_WATERMARK,
                0,
                0,
                NULL,
                0,
                NULL);

    // registers object, typelib and all interfaces in typelib
    return _Module.RegisterServer(FALSE);
}

/////////////////////////////////////////////////////////////////////////////
// DllUnregisterServer - Removes entries from the system registry

STDAPI DllUnregisterServer(void)
{
#ifdef _TEST_IN_GRAPHEDIT_
	DMOUnregister(CLSID_FlickerLogo, DMOCATEGORY_VIDEO_EFFECT);
#endif // _TEST_IN_GRAPHEDIT_

	DMOUnregister(CLSID_FlickerLogo, WMT_DMOCATEGORY_VIDEO_WATERMARK);

    return _Module.UnregisterServer(FALSE);
}