资源简介

包含DirectShow 的依赖文件和库,64位、32位均有,以及CameraDS.h,CameraDS.cpp。用于基于opencv的摄像头/相机图像、视频采集程序,或将原X86平台程序移植至X64平台。 实践发现此DirectShow +CameraDS方法相比OpenCV自带videocapture 类在速度上快得多。

资源截图

代码片段和文件信息

//////////////////////////////////////////////////////////////////////
// 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
//////////////////////////////////////////////////////////////////////


//////////////////////////////////////////////////////////////////////
// 使用说明:
//   1. 将CameraDS.h CameraDS.cpp以及目录DirectShow复制到你的项目中
//   2. 菜单 Project->Settings->Settings for:(All configurations)->C/C++->Category(Preprocessor)->Additional include directories
//      设置为 DirectShow/Include
//   3. 菜单 Project->Settings->Settings for:(All configurations)->link->Category(Input)->Additional library directories
//      设置为 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;
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“NullRendere

 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----
     目录           0  2017-03-13 10:49  dirtshow_x64_x86\
     文件       11605  2011-04-30 16:26  dirtshow_x64_x86\CameraDS.cpp
     文件        3302  2011-04-30 16:26  dirtshow_x64_x86\CameraDS.h
     目录           0  2017-03-13 10:50  dirtshow_x64_x86\DirectShow\
     目录           0  2015-11-30 16:04  dirtshow_x64_x86\DirectShow\Include\
     文件         631  2011-04-30 16:26  dirtshow_x64_x86\DirectShow\Include\activecf.h
     文件        1826  2011-04-30 16:26  dirtshow_x64_x86\DirectShow\Include\amaudio.h
     文件        1065  2011-04-30 16:26  dirtshow_x64_x86\DirectShow\Include\amparse.h
     文件       73261  2011-04-30 16:26  dirtshow_x64_x86\DirectShow\Include\amstream.h
     文件        3974  2011-04-30 16:26  dirtshow_x64_x86\DirectShow\Include\amva.h
     文件       19851  2011-04-30 16:26  dirtshow_x64_x86\DirectShow\Include\Amvideo.h
     文件        1097  2011-04-30 16:26  dirtshow_x64_x86\DirectShow\Include\atsmedia.h
     文件        1532  2011-04-30 16:26  dirtshow_x64_x86\DirectShow\Include\audevcod.h
     文件       20543  2011-04-30 16:26  dirtshow_x64_x86\DirectShow\Include\austream.h
     文件       13805  2011-04-30 16:26  dirtshow_x64_x86\DirectShow\Include\aviriff.h
     文件        6820  2011-04-30 16:26  dirtshow_x64_x86\DirectShow\Include\basetsd.h
     文件      125594  2011-04-30 16:26  dirtshow_x64_x86\DirectShow\Include\bdaiface.h
     文件       54539  2011-04-30 16:26  dirtshow_x64_x86\DirectShow\Include\bdamedia.h
     文件       53527  2011-04-30 16:26  dirtshow_x64_x86\DirectShow\Include\Bdatif.h
     文件       15486  2011-04-30 16:26  dirtshow_x64_x86\DirectShow\Include\bdatypes.h
     文件         944  2011-04-30 16:26  dirtshow_x64_x86\DirectShow\Include\comlite.h
     文件      178266  2011-04-30 16:26  dirtshow_x64_x86\DirectShow\Include\control.h
     文件       88071  2011-04-30 16:26  dirtshow_x64_x86\DirectShow\Include\d3d.h
     文件       72232  2011-04-30 16:26  dirtshow_x64_x86\DirectShow\Include\d3d8.h
     文件       16088  2011-04-30 16:26  dirtshow_x64_x86\DirectShow\Include\d3d8caps.h
     文件       63735  2011-04-30 16:26  dirtshow_x64_x86\DirectShow\Include\d3d8types.h
     文件       96132  2011-04-30 16:26  dirtshow_x64_x86\DirectShow\Include\d3d9.h
     文件       22164  2011-04-30 16:26  dirtshow_x64_x86\DirectShow\Include\d3d9caps.h
     文件       69800  2011-04-30 16:26  dirtshow_x64_x86\DirectShow\Include\d3d9types.h
     文件       26113  2011-04-30 16:26  dirtshow_x64_x86\DirectShow\Include\d3dcaps.h
     文件       14874  2011-04-30 16:26  dirtshow_x64_x86\DirectShow\Include\d3drm.h
............此处省略126个文件信息

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