//////////////////////////////////////////////////////////////////////
//?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?“stdafx.h“
#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;		//這里出錯了
	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“Nu

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

?????文件?????????26??2013-05-31?17:22??opencv-1\debug\b.bat

?????文件?????106496??2013-06-08?08:47??opencv-1\debug\opencv-1.exe

?????文件?????693720??2013-06-08?08:47??opencv-1\debug\opencv-1.ilk

?????文件????1625088??2013-06-08?08:47??opencv-1\debug\opencv-1.pdb

?????文件??????11651??2013-05-30?13:28??opencv-1\opencv-1\CameraDS.cpp

?????文件???????3302??2009-04-09?23:23??opencv-1\opencv-1\CameraDS.h

?????文件?????187961??2013-05-31?18:02??opencv-1\opencv-1\Debug\blobtrack.obj

?????文件???????6930??2013-06-08?08:47??opencv-1\opencv-1\Debug\BuildLog.htm

?????文件?????221112??2013-05-30?18:27??opencv-1\opencv-1\Debug\CameraDS.obj

?????文件?????????65??2013-06-08?08:47??opencv-1\opencv-1\Debug\mt.dep

?????文件????????406??2013-05-30?16:40??opencv-1\opencv-1\Debug\opencv-1.exe.embed.manifest

?????文件????????472??2013-05-30?16:40??opencv-1\opencv-1\Debug\opencv-1.exe.embed.manifest.res

?????文件????????388??2013-06-08?08:47??opencv-1\opencv-1\Debug\opencv-1.exe.intermediate.manifest

?????文件?????132215??2013-05-30?16:40??opencv-1\opencv-1\Debug\opencv-1.obj

?????文件????1048576??2013-05-30?16:40??opencv-1\opencv-1\Debug\opencv-1.pch

?????文件?????132635??2013-06-08?08:47??opencv-1\opencv-1\Debug\opencv-CamShift.obj

?????文件?????111433??2013-05-31?18:16??opencv-1\opencv-1\Debug\opencv-t.obj

?????文件??????11032??2013-05-30?16:40??opencv-1\opencv-1\Debug\stdafx.obj

?????文件?????969728??2013-06-08?08:47??opencv-1\opencv-1\Debug\vc80.idb

?????文件?????897024??2013-06-08?08:47??opencv-1\opencv-1\Debug\vc80.pdb

?????文件????????631??2008-02-27?14:52??opencv-1\opencv-1\DirectShow\Include\activecf.h

?????文件???????1826??2008-02-27?14:52??opencv-1\opencv-1\DirectShow\Include\amaudio.h

?????文件???????1065??2008-02-27?14:52??opencv-1\opencv-1\DirectShow\Include\amparse.h

?????文件??????73261??2008-02-27?14:52??opencv-1\opencv-1\DirectShow\Include\amstream.h

?????文件???????3974??2008-02-27?14:52??opencv-1\opencv-1\DirectShow\Include\amva.h

?????文件??????19851??2008-02-27?14:52??opencv-1\opencv-1\DirectShow\Include\Amvideo.h

?????文件???????1097??2008-02-27?14:52??opencv-1\opencv-1\DirectShow\Include\atsmedia.h

?????文件???????1532??2008-02-27?14:52??opencv-1\opencv-1\DirectShow\Include\audevcod.h

?????文件??????20543??2008-02-27?14:52??opencv-1\opencv-1\DirectShow\Include\austream.h

?????文件??????13805??2008-02-27?14:52??opencv-1\opencv-1\DirectShow\Include\aviriff.h

............此處省略155個文件信息