在Ubuntu下使用opencv调用海康威视的网络摄像头
作者：互联网
经过很多天的配置，终于能在工程中调用海康威视的网络摄像头了，为了后人能快速上手，我整理内容如下：
一、根据电脑的型号下载海康威视的SDK包
网址：http://www.hikvision.com/cn/download_61.html。
我的笔记本时linux64位的，所以下载的 ————设备网络SDK_Linux64
二、 用下面的方法之一配置SDK
如果HCNetSDKCom目录以及libhcnetsdk.so、libhpr.so、libHCCore文件和可执行文件在同一级目录下，则使用同级目录下的库文件;
如果不在同一级目录下，则需要将以上文件的目录加载到动态库搜索路径中，设置的方式有以下几种:
1. 将网络SDK各动态库路径加入到LD_LIBRARY_PATH环境变量
1.在终端输入：export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/XXX:/XXX/HCNetSDKCom 只在当前终端起作用
2. 修改~/.bashrc或~/.bash_profile，最后一行添加 export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/XXX:/XXX/HCNetSDKCom，保存之后，使用source .bashrc执行该文件 ，当前用户生效
3. 修改/etc/profile，添加内容如第2条，同样保存之后使用source执行该文件 所有用户生效
2．在/etc/ld.so.conf文件结尾添加网络sdk库的路径，如/XXX和/XXX/HCNetSDKCom/，保存之后，然后执行ldconfig。
三. 在Ubuntu16.04 的qt中新建一个工程
1. 在工程的 ×.pro文件中添加以下内容：
INCLUDEPATH += /usr/local/include \
/usr/local/include/opencv \
/usr/local/include/opencv2
LIBS += /usr/local/lib/libopencv_calib3d.so
/usr/local/lib/libopencv_ml.so.2.4.9
/usr/local/lib/libopencv_calib3d.so.2.4
/usr/local/lib/libopencv_nonfree.so
/usr/local/lib/libopencv_calib3d.so.2.4.9
/usr/local/lib/libopencv_nonfree.so.2.4
/usr/local/lib/libopencv_contrib.so
/usr/local/lib/libopencv_nonfree.so.2.4.9
/usr/local/lib/libopencv_contrib.so.2.4
/usr/local/lib/libopencv_objdetect.so
/usr/local/lib/libopencv_contrib.so.2.4.9
/usr/local/lib/libopencv_objdetect.so.2.4
/usr/local/lib/libopencv_core.so
/usr/local/lib/libopencv_objdetect.so.2.4.9
/usr/local/lib/libopencv_core.so.2.4
/usr/local/lib/libopencv_ocl.so
/usr/local/lib/libopencv_core.so.2.4.9
/usr/local/lib/libopencv_ocl.so.2.4
/usr/local/lib/libopencv_features2d.so
/usr/local/lib/libopencv_ocl.so.2.4.9
/usr/local/lib/libopencv_features2d.so.2.4
/usr/local/lib/libopencv_photo.so
/usr/local/lib/libopencv_features2d.so.2.4.9
/usr/local/lib/libopencv_photo.so.2.4
/usr/local/lib/libopencv_flann.so
/usr/local/lib/libopencv_photo.so.2.4.9
/usr/local/lib/libopencv_flann.so.2.4
/usr/local/lib/libopencv_stitching.so
/usr/local/lib/libopencv_flann.so.2.4.9
/usr/local/lib/libopencv_stitching.so.2.4
/usr/local/lib/libopencv_gpu.so
/usr/local/lib/libopencv_stitching.so.2.4.9
/usr/local/lib/libopencv_gpu.so.2.4
/usr/local/lib/libopencv_superres.so
/usr/local/lib/libopencv_gpu.so.2.4.9
/usr/local/lib/libopencv_superres.so.2.4
/usr/local/lib/libopencv_highgui.so
/usr/local/lib/libopencv_superres.so.2.4.9
/usr/local/lib/libopencv_highgui.so.2.4
/usr/local/lib/libopencv_highgui.so.2.4.9
/usr/local/lib/libopencv_video.so
/usr/local/lib/libopencv_imgproc.so
/usr/local/lib/libopencv_video.so.2.4
/usr/local/lib/libopencv_imgproc.so.2.4
/usr/local/lib/libopencv_video.so.2.4.9
/usr/local/lib/libopencv_imgproc.so.2.4.9
/usr/local/lib/libopencv_videostab.so
/usr/local/lib/libopencv_legacy.so
/usr/local/lib/libopencv_videostab.so.2.4
/usr/local/lib/libopencv_legacy.so.2.4
/usr/local/lib/libopencv_videostab.so.2.4.9
/usr/local/lib/libopencv_legacy.so.2.4.9
/usr/local/lib/libopencv_ml.so
INCLUDEPATH += /home/ding/opencvprojects/CH_HCNetSDK_V5.2.7.4build20170606_Linux64/incCn
LIBS += /home/ding/opencv_projects/CH_HCNetSDK_V5.2.7.4_build20170606_Linux64/lib/libhcnetsdk.so</span>
/home/ding/opencv_projects/CH_HCNetSDK_V5.2.7.4_build20170606_Linux64/lib/libHCCore.so</span>
/home/ding/opencv_projects/CH_HCNetSDK_V5.2.7.4_build20170606_Linux64/lib/libhpr.so</span>
/home/ding/opencv_projects/CH_HCNetSDK_V5.2.7.4_build20170606_Linux64/lib/libPlayCtrl.so</span>
/home/ding/opencv_projects/CH_HCNetSDK_V5.2.7.4_build20170606_Linux64/lib/libSuperRender.so</span>
/home/ding/opencv_projects/CH_HCNetSDK_V5.2.7.4_build20170606_Linux64/lib/libAudioRender.so2. 在main.cpp函数中添加以下内容：
- #include "opencv2/opencv.hpp"
- #include <QDir>
- #include <fstream>
- #include <unistd.h>
- //#include "auto_entercs.h"
- #include "HCNetSDK.h"
- #include "PlayM4.h"
- #include "LinuxPlayM4.h"
- #define HPR_ERROR -1
- #define HPR_OK 0
- #define USECOLOR 0
- static cv::Mat dst;
- HWND h = NULL;
- LONG nPort= -1;
- LONG lUserID;
- pthread_mutex_t mutex;
- std:: list<cv::Mat> g_frameList;
- FILE *g_pFile = NULL;
- void CALLBACK PsDataCallBack(LONG lRealHandle, DWORD dwDataType,BYTE *pPacketBuffer,DWORD nPacketSize, void* pUser)
- {
- if (dwDataType == NET_DVR_SYSHEAD)
- {
- //写入头数据
- g_pFile = fopen( "/home/lds/source/ps.dat", "wb");
- if (g_pFile == NULL)
- {
- printf( "CreateFileHead fail\n");
- return;
- }
- //写入头数据
- fwrite(pPacketBuffer, sizeof( unsigned char), nPacketSize, g_pFile);
- printf( "write head len=%d\n", nPacketSize);
- }
- else
- {
- if(g_pFile != NULL)
- {
- fwrite(pPacketBuffer, sizeof( unsigned char), nPacketSize, g_pFile);
- printf( "write data len=%d\n", nPacketSize);
- }
- }
- }
- //void CALLBACK DecCBFun(LONG nPort, char *pBuf, LONG nSize, FRAME_INFO *pFrameInfo, LONG nReserved1, LONG nReserved2)
- void CALLBACK DecCBFun(LONG nPort, char *pBuf, LONG nSize, FRAME_INFO *pFrameInfo, void* nReserved1, LONG nReserved2)
- {
- long lFrameType = pFrameInfo->nType;
- if (lFrameType == T_YV12)
- {
- //cv::Mat dst(pFrameInfo->nHeight, pFrameInfo->nWidth,
- // CV_8UC3); // 8UC3表示8bit uchar无符号类型,3通道值
- dst.create(pFrameInfo->nHeight, pFrameInfo->nWidth,
- CV_8UC3);
- cv::Mat src(pFrameInfo->nHeight + pFrameInfo->nHeight / 2, pFrameInfo->nWidth, CV_8UC1, (uchar *)pBuf);
- cv::cvtColor(src, dst, CV_YUV2BGR_YV12);
- pthread_mutex_lock(&mutex);
- g_frameList.push_back(dst);
- pthread_mutex_unlock(&mutex);
- }
- usleep( 1000);
- //cv::Mat src(pFrameInfo->nHeight + pFrameInfo->nHeight / 2, pFrameInfo->nWidth, CV_8UC1, (uchar *)pBuf);
- //cv::cvtColor(src, dst, CV_YUV2BGR_YV12);
- //cv::imshow("bgr", dst);
- //pthread_mutex_lock(&mutex);
- //g_frameList.push_back(dst);
- //pthread_mutex_unlock(&mutex);
- //vw << dst;
- //cv::waitKey(10);
- }
- void CALLBACK g_RealDataCallBack_V30(LONG lRealHandle, DWORD dwDataType, BYTE *pBuffer, DWORD dwBufSize,void* dwUser)
- {
- /*
- if (dwDataType == 1)
- {
- PlayM4_GetPort(&nPort);
- PlayM4_SetStreamOpenMode(nPort, STREAME_REALTIME);
- PlayM4_OpenStream(nPort, pBuffer, dwBufSize, 1024 * 1024);
- PlayM4_SetDecCallBackEx(nPort, DecCBFun, NULL, NULL);
- PlayM4_Play(nPort, h);
- }
- else
- {
- BOOL inData = PlayM4_InputData(nPort, pBuffer, dwBufSize);
- }*/
- DWORD dRet;
- switch (dwDataType)
- {
- case NET_DVR_SYSHEAD: //系统头
- if (!PlayM4_GetPort(&nPort)) //获取播放库未使用的通道号
- {
- break;
- }
- if (dwBufSize > 0) {
- if (!PlayM4_SetStreamOpenMode(nPort, STREAME_REALTIME)) {
- dRet = PlayM4_GetLastError(nPort);
- break;
- }
- if (!PlayM4_OpenStream(nPort, pBuffer, dwBufSize, 1024 * 1024)) {
- dRet = PlayM4_GetLastError(nPort);
- break;
- }
- //设置解码回调函数 只解码不显示
- // if (!PlayM4_SetDecCallBack(nPort, DecCBFun)) {
- // dRet = PlayM4_GetLastError(nPort);
- // break;
- // }
- //设置解码回调函数 解码且显示
- if (!PlayM4_SetDecCallBackEx(nPort, DecCBFun, NULL, NULL))
- {
- dRet = PlayM4_GetLastError(nPort);
- break;
- }
- //打开视频解码
- if (!PlayM4_Play(nPort, h))
- {
- dRet = PlayM4_GetLastError(nPort);
- break;
- }
- //打开音频解码, 需要码流是复合流
- if (!PlayM4_PlaySound(nPort)) {
- dRet = PlayM4_GetLastError(nPort);
- break;
- }
- }
- break;
- //usleep(500);
- case NET_DVR_STREAMDATA: //码流数据
- if (dwBufSize > 0 && nPort != -1) {
- BOOL inData = PlayM4_InputData(nPort, pBuffer, dwBufSize);
- while (!inData) {
- sleep( 100);
- inData = PlayM4_InputData(nPort, pBuffer, dwBufSize);
- std:: cerr << "PlayM4_InputData failed \n" << std:: endl;
- }
- }
- break;
- }
- }
- void CALLBACK g_ExceptionCallBack(DWORD dwType, LONG lUserID, LONG lHandle, void *pUser)
- {
- char tempbuf[ 256] = { 0};
- std:: cout << "EXCEPTION_RECONNECT = " << EXCEPTION_RECONNECT << std:: endl;
- switch(dwType)
- {
- case EXCEPTION_RECONNECT: //预览时重连
- printf( "pyd----------reconnect--------%d\n", time( NULL));
- break;
- default:
- break;
- }
- }
- void *RunIPCameraInfo(void *)
- {
- char IP[] = "192.168.**.***"; //海康威视网络摄像头的ip
- char UName[] = "****"; //海康威视网络摄像头的用户名
- char PSW[] = "*****"; //海康威视网络摄像头的密码
- NET_DVR_Init();
- NET_DVR_SetConnectTime( 2000, 1);
- NET_DVR_SetReconnect( 1000, true);
- NET_DVR_SetLogToFile( 3, "./sdkLog");
- NET_DVR_DEVICEINFO_V30 struDeviceInfo = { 0};
- NET_DVR_SetRecvTimeOut( 5000);
- lUserID = NET_DVR_Login_V30(IP, 8000, UName, PSW, &struDeviceInfo);
- NET_DVR_SetExceptionCallBack_V30( 0, NULL, g_ExceptionCallBack, NULL);
- long lRealPlayHandle;
- NET_DVR_CLIENTINFO ClientInfo = { 0};
- ClientInfo.lChannel = 1;
- ClientInfo.lLinkMode = 0;
- ClientInfo.hPlayWnd = 0;
- ClientInfo.sMultiCastIP = NULL;
- //lRealPlayHandle = NET_DVR_RealPlay_V30(lUserID, &ClientInfo, PsDataCallBack, NULL, 0);
- lRealPlayHandle = NET_DVR_RealPlay_V30(lUserID, &ClientInfo, g_RealDataCallBack_V30, NULL, 0);
- //NET_DVR_SaveRealData(lRealPlayHandle, "/home/lds/source/yuntai.mp4");
- if (lRealPlayHandle < 0)
- {
- printf( "pyd1---NET_DVR_RealPlay_V30 error\n");
- }
- sleep( -1);
- NET_DVR_Cleanup();
- }
- int main(int argc, char *argv[])
- {
- pthread_t getframe;
- pthread_mutex_init(&mutex, NULL);
- int ret;
- ret = pthread_create(&getframe, NULL, RunIPCameraInfo, NULL);
- if(ret!= 0)
- {
- printf( "Create pthread error!\n");
- }
- cv::Mat image;
- while( 1)
- {
- pthread_mutex_lock(&mutex);
- if(g_frameList.size())
- {
- std:: list<cv::Mat>::iterator it;
- it = g_frameList.end();
- it--;
- image = (*(it));
- if (!image.empty())
- {
- imshow( "frame from camera",image);
- cv::waitKey( 1);
- }
- g_frameList.pop_front();
- }
- g_frameList.clear(); // 丢掉旧的帧
- pthread_mutex_unlock(&mutex);
- }
- return 0;
- }
标签：lib,威视,libopencv,opencv,so.2,so,usr,Ubuntu,local 来源： https://blog.csdn.net/xujianjun229/article/details/118583394