多媒体编程

开发平台：
Visual C++

FakeFilterMapper2.h：源码内容
							/* 
 *	Copyright (C) 2003-2006 Gabest
 *	http://www.gabest.org
 *
 *  This Program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2, or (at your option)
 *  any later version.
 *   
 *  This Program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 *  GNU General Public License for more details.
 *   
 *  You should have received a copy of the GNU General Public License
 *  along with GNU Make; see the file COPYING.  If not, write to
 *  the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. 
 *  http://www.gnu.org/copyleft/gpl.html
 *
 */
#pragma once
#include <atlbase.h>
class FilterOverride
{
public:
	bool fDisabled, fTemporary;
	enum {REGISTERED, EXTERNAL} type;
	// REGISTERED
	CStringW dispname;
	// EXTERNAL
	CString path, name;
	CLSID clsid;
	// props
	CAtlList<GUID> guids, backup;
	enum {PREFERRED, BLOCK, MERIT};
	int iLoadType;
	DWORD dwMerit;
	FilterOverride() {fTemporary = false;}
	FilterOverride(FilterOverride* f)
	{
		fDisabled = f->fDisabled;
		fTemporary = f->fTemporary;
		type = f->type;
		dispname = f->dispname;
		path = f->path;
		name = f->name;
		clsid = f->clsid;
		guids.AddTailList(&f->guids);
		backup.AddTailList(&f->backup);
		iLoadType = f->iLoadType;
		dwMerit = f->dwMerit;
	}
};
/*
class CFilterMapper2 : protected CUnknown, protected IFilterMapper2
{
	static bool fInitialized;
	CComPtr<IFilterMapper2> m_pFM2;
	CString m_path;
protected:
	DECLARE_IUNKNOWN;
	STDMETHODIMP NonDelegatingQueryInterface(REFIID riid, void** ppv);
	// IFilterMapper2
	
	STDMETHODIMP CreateCategory(REFCLSID clsidCategory, DWORD dwCategoryMerit, LPCWSTR Description);
	STDMETHODIMP UnregisterFilter(const CLSID* pclsidCategory, const OLECHAR* szInstance, REFCLSID Filter);	
	STDMETHODIMP RegisterFilter(REFCLSID clsidFilter, LPCWSTR Name, IMoniker** ppMoniker, const CLSID* pclsidCategory, const OLECHAR* szInstance, const REGFILTER2* prf2);
	STDMETHODIMP EnumMatchingFilters(IEnumMoniker** ppEnum, DWORD dwFlags, BOOL bExactMatch, DWORD dwMerit, 
		BOOL bInputNeeded, DWORD cInputTypes, const GUID* pInputTypes, const REGPINMEDIUM* pMedIn, const CLSID* pPinCategoryIn, BOOL bRender, 
		BOOL bOutputNeeded, DWORD cOutputTypes, const GUID* pOutputTypes, const REGPINMEDIUM* pMedOut, const CLSID* pPinCategoryOut);
public: 
	CFilterMapper2();
	virtual ~CFilterMapper2();
	static void Init();
	static IFilterMapper2* m_pFilterMapper2;
	CList<Filter*> m_filters;
	void Register(CString path);
};
*/
class CFilterMapper2 : protected CUnknown, public IFilterMapper2
{
	static bool fInitialized;
	CComPtr<IUnknown> m_pFM2;
	CString m_path;
	bool m_fRefCounted, m_fAllowUnreg;
protected:
	DECLARE_IUNKNOWN;
	STDMETHODIMP NonDelegatingQueryInterface(REFIID riid, void** ppv);
	// IFilterMapper2
	
	STDMETHODIMP CreateCategory(REFCLSID clsidCategory, DWORD dwCategoryMerit, LPCWSTR Description);
	STDMETHODIMP UnregisterFilter(const CLSID* pclsidCategory, const OLECHAR* szInstance, REFCLSID Filter);	
	STDMETHODIMP RegisterFilter(REFCLSID clsidFilter, LPCWSTR Name, IMoniker** ppMoniker, const CLSID* pclsidCategory, const OLECHAR* szInstance, const REGFILTER2* prf2);
	STDMETHODIMP EnumMatchingFilters(IEnumMoniker** ppEnum, DWORD dwFlags, BOOL bExactMatch, DWORD dwMerit, 
		BOOL bInputNeeded, DWORD cInputTypes, const GUID* pInputTypes, const REGPINMEDIUM* pMedIn, const CLSID* pPinCategoryIn, BOOL bRender, 
		BOOL bOutputNeeded, DWORD cOutputTypes, const GUID* pOutputTypes, const REGPINMEDIUM* pMedOut, const CLSID* pPinCategoryOut);
public: 
	CFilterMapper2(bool fRefCounted, bool fAllowUnreg = false, LPUNKNOWN pUnkOuter = NULL);
	virtual ~CFilterMapper2();
	void SetInner(IUnknown* pUnk) {m_pFM2 = pUnk;}
	static void Init();
	static IFilterMapper2* m_pFilterMapper2;
	CList<FilterOverride*> m_filters;
	void Register(CString path);
};

						