www.pudn.com > SourceFilter.rar > Snake.cpp

//------------------------------------------------------------------------------ 
// File: Snake.cpp 
// 
// Desc: Snake DirectShow filter 
// 
// Author : Ashok Jaiswal 
// 
// Data/Time : September 2004 
//------------------------------------------------------------------------------ 
 
#include "stdafx.h" 
#include "fSnake.h" 
 
#include  
#include "Snake.h" 
 
 
// 
// Setup data for filter registration 
// 
const AMOVIESETUP_MEDIATYPE sudPinTypes = 
{	&MEDIATYPE_NULL,	// Major CLSID 
	&MEDIASUBTYPE_NULL	// Minor type 
}; 
 
const AMOVIESETUP_PIN psudPins[] = 
{ 
	{ 
		L"Output",		// Pin's string name 
		FALSE,			// Is it rendered 
		TRUE,			// Is it an output 
		FALSE,			// Allowed none 
		FALSE,			// Allowed many 
		&CLSID_NULL,	// Connects to filter 
		L"Input",		// Connects to pin 
		1,				// Number of types 
		&sudPinTypes	// Pin type information 
	}, 
}; 
 
const AMOVIESETUP_FILTER sudSnake = 
{ 
	&CLSID_Snake,		// CLSID of filter 
	L"Snake Filter",			// Filter's name 
	MERIT_DO_NOT_USE,			// Filter merit 
	1,							// Number of pins 
	psudPins					// Pin information 
}; 
 
 
// 
//  Object creation template 
// 
CFactoryTemplate g_Templates[] =  
{ 
	{ 
		L"Snake Filter", 
		&CLSID_Snake, 
		CSnakeFilter::CreateInstance, 
		NULL, 
		&sudSnake 
	}, 
}; 
 
int g_cTemplates = sizeof(g_Templates) / sizeof(g_Templates[0]); 
 
 
// 
// Filter registration functions 
// 
HRESULT DllRegisterServer() 
{ 
	return AMovieDllRegisterServer2(TRUE); 
} 
 
HRESULT DllUnregisterServer() 
{ 
	return AMovieDllRegisterServer2(FALSE); 
} 
 
 
// 
// Create a new instance of this class 
// 
CUnknown *CSnakeFilter::CreateInstance(LPUNKNOWN pUnk, HRESULT *phr) 
{ 
    //	DLLEntry does the right thing with the return code and 
    //	returned value on failure 
	CUnknown *pUnknown = new CSnakeFilter(pUnk, phr); 
	if (pUnknown == NULL) 
	{ 
		*phr = E_OUTOFMEMORY; 
	} 
 
	return pUnknown; 
}