//////////////////////////////////////////////////////////////////////
//?Video?Capture?using?DirectShow
//?Author:?Shiqi?Yu?（shiqi.yu@gmail.com）
//?Thanks?to:
//		HardyAI@OpenCV?China
//		flymanbox@OpenCV?China?（for?his?contribution?to?function?CameraName?and?frame?width/height?setting）
//?Last?modification:?April?9?2009
//////////////////////////////////////////////////////////////////////


//////////////////////////////////////////////////////////////////////
//?使用說明：
//???1.?將CameraDS.h?CameraDS.cpp以及目錄DirectShow復制到你的項目中
//???2.?菜單?Project->Settings->Settings?for:（All?configurations）->C/C++->Category（Preprocessor）->Additional?include?directories
//??????設置為?DirectShow/Include
//???3.?菜單?Project->Settings->Settings?for:（All?configurations）->link->Category（Input）->Additional?library?directories
//??????設置為?DirectShow/Lib
//////////////////////////////////////////////////////////////////////

//?CameraDS.cpp:?implementation?of?the?CCameraDS?class.
//
//////////////////////////////////////////////////////////////////////

#include?“CameraDS.h“

#pragma?comment（lib“Strmiids.lib“）?
//////////////////////////////////////////////////////////////////////
//?Construction/Destruction
//////////////////////////////////////////////////////////////////////

CCameraDS::CCameraDS（）
{
	m_bConnected?=?false;
	m_nWidth?=?0;
	m_nHeight?=?0;
	m_bLock?=?false;
	m_bChanged?=?false;
	m_pframe?=?NULL;
	m_nBufferSize?=?0;

	m_pNullFilter?=?NULL;
	m_pMediaEvent?=?NULL;
	m_pSampleGrabberFilter?=?NULL;
	m_pGraph?=?NULL;

	CoInitialize（NULL）;
}

CCameraDS::~CCameraDS（）
{
	CloseCamera（）;
	CoUninitialize（）;
}

void?CCameraDS::CloseCamera（）
{
	if（m_bConnected）
		m_pMediaControl->Stop（）;

	m_pGraph?=?NULL;
	m_pDeviceFilter?=?NULL;
	m_pMediaControl?=?NULL;
	m_pSampleGrabberFilter?=?NULL;
	m_pSampleGrabber?=?NULL;
	m_pGrabberInput?=?NULL;
	m_pGrabberOutput?=?NULL;
	m_pCameraOutput?=?NULL;
	m_pMediaEvent?=?NULL;
	m_pNullFilter?=?NULL;
	m_pNullInputPin?=?NULL;


	if?（m_pframe）
		cvReleaseImage（&m_pframe）;

	m_bConnected?=?false;
	m_nWidth?=?0;
	m_nHeight?=?0;
	m_bLock?=?false;
	m_bChanged?=?false;
	m_nBufferSize?=?0;
}

bool?CCameraDS::OpenCamera（int?nCamID?bool?bDisplayProperties?int?nWidth?int?nHeight）
{
	
	HRESULT?hr?=?S_OK;

	CoInitialize（NULL）;
	//?Create?the?Filter?Graph?Manager.
	hr?=?CoCreateInstance（CLSID_FilterGraph?NULL?CLSCTX_INPROC
							IID_IGraphBuilder?（void?**）&m_pGraph）;

	hr?=?CoCreateInstance（CLSID_SampleGrabber?NULL?CLSCTX_INPROC_SERVER?
							IID_IbaseFilter?（LPVOID?*）&m_pSampleGrabberFilter）;

	hr?=?m_pGraph->QueryInterface（IID_IMediaControl?（void?**）?&m_pMediaControl）;
	hr?=?m_pGraph->QueryInterface（IID_IMediaEvent?（void?**）?&m_pMediaEvent）;

	hr?=?CoCreateInstance（CLSID_NullRenderer?NULL?CLSCTX_INPROC_SERVER
							IID_IbaseFilter?（LPVOID*）?&m_pNullFilter）;


	hr?=?m_pGraph->AddFilter（m_pNullFilter?L“NullRenderer“）;

	hr?=?m_pSa

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件?????209452??2010-10-30?22:14??4\ALARM.WAV

?????文件?????649481??2010-10-30?22:14??4\Average?of?Synthetic?Exact?Filters.pdf

?????文件??????11586??2010-10-30?22:14??4\CameraDS.cpp

?????文件???????4733??2010-10-30?22:14??4\camerads.dsp

?????文件????????541??2010-10-30?22:14??4\camerads.dsw

?????文件???????3302??2010-10-30?22:14??4\CameraDS.h

?????文件?????156672??2010-11-05?10:26??4\camerads.ncb

?????文件??????54784??2010-11-05?10:25??4\camerads.opt

?????文件???????1000??2010-11-05?10:24??4\camerads.plg

?????文件?????843824??2010-10-30?22:14??4\cv100.dll

?????文件????1265722??2010-10-30?22:14??4\cv100d_i7.dll

?????文件?????598067??2010-10-30?22:14??4\cvaux100.dll

?????文件??????49152??2010-10-30?22:14??4\cvcam100.dll

?????文件????1011764??2010-10-30?22:14??4\cxcore100.dll

?????文件????1581118??2010-10-30?22:14??4\cxcore100d_i7.dll

?????文件?????131133??2010-10-30?22:14??4\cxts001.dll

?????文件?????536687??2010-11-05?10:24??4\Debug\camerads.exe

?????文件?????701444??2010-11-05?10:24??4\Debug\camerads.ilk

?????文件?????114753??2010-11-03?21:18??4\Debug\CameraDS.obj

?????文件??????43520??2010-10-30?22:16??4\Debug\camerads.opt

?????文件????7814688??2010-11-04?23:20??4\Debug\camerads.pch

?????文件?????885760??2010-11-05?10:24??4\Debug\camerads.pdb

?????文件?????226808??2010-11-05?10:24??4\Debug\main.obj

?????文件?????336896??2010-11-05?10:24??4\Debug\vc60.idb

?????文件?????413696??2010-11-05?10:24??4\Debug\vc60.pdb

?????文件????????631??2010-10-30?22:14??4\DirectShow\Include\activecf.h

?????文件???????1826??2010-10-30?22:14??4\DirectShow\Include\amaudio.h

?????文件???????1065??2010-10-30?22:14??4\DirectShow\Include\amparse.h

?????文件??????73261??2010-10-30?22:14??4\DirectShow\Include\amstream.h

?????文件???????3974??2010-10-30?22:14??4\DirectShow\Include\amva.h

............此處省略171個文件信息