海康網路攝像頭/監控Ubuntu 16.04 SDK C++ 實現拍照存檔

一 SDK環境準備

海康SDK官方網址

硬件: DS-2CD3125F2-I

相機SDK: CH-HCNetSDKV6.1.6.3_build20200925_Linux64

系統: Ubuntu 16.04

C++ 會用到的就lib與include檔案, include 在CH-HCNetSDKV6.1.6.3_build20200925_Linux64/consoleDemo/include, lib在CH-HCNetSDKV6.1.6.3_build20200925_Linux64/lib

加入環境, 不懂CMake怎配置，只好亂加至少能make, 我把folder名字換成hikvision_camera_sdk，include拉了出來跟lib同層，將lib的路徑export，
export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/home/user/hikvision_camera_sdk/lib/HCNetSDKCom:/home/user/hikvision_camera_sdk/lib

海康API說明在設備網絡SDK編程指南（DVR&NVR).pdf 都有, consoleDemo也有范例

二 監控拍圖存影像

• CMakeLists.txt

cmake_minimum_required(VERSION 3.0.2) project(hikvision_camera_test) set(CMAKE_CXX_STANDARD 11)link_directories("/home/user/hikvision_camera_sdk/lib/") link_libraries(AudioRender) link_libraries(HCCore) link_libraries(hcnetsdk) link_libraries(hpr) link_libraries(PlayCtrl)include_directories(/home/user/hikvision_camera_sdk/include/ ) add_executable(test_save_img test/test_save_img.cc) target_link_libraries(test_save_img PUBLIC)

• 拍照存檔

#include <stdio.h> #include <string.h> #include "HCNetSDK.h" #include <iostream> #include <cstdlib>int main() {NET_DVR_Init();long lUserID;//loginNET_DVR_USER_LOGIN_INFO struLoginInfo = {0};NET_DVR_DEVICEINFO_V40 struDeviceInfoV40 = {0};struLoginInfo.bUseAsynLogin = false;// 監控端口struLoginInfo.wPort = 8000;// 監控IPmemcpy(struLoginInfo.sDeviceAddress, "192.168.1.101",NET_DVR_DEV_ADDRESS_MAX_LEN);// 監控賬號memcpy(struLoginInfo.sUserName, "admin", NAME_LEN);// 監控密碼memcpy(struLoginInfo.sPassword, "123456", NAME_LEN);lUserID = NET_DVR_Login_V40(&struLoginInfo, &struDeviceInfoV40);if (lUserID < 0){printf("pyd1---Login error, %d\n", NET_DVR_GetLastError());exit(-1);}NET_DVR_JPEGPARA strPicPara = {0};strPicPara.wPicQuality = 2;strPicPara.wPicSize = 0;int iRet;std::string img_path = "/home/user/Pictures/test.jpg";iRet = NET_DVR_CaptureJPEGPicture(lUserID, struDeviceInfoV40.struDeviceV30.byStartChan,&strPicPara, const_cast<char*>(img_path.c_str()));if (!iRet) {printf("pyd1---NET_DVR_CaptureJPEGPicture error, %d\n",NET_DVR_GetLastError());exit(-1);} else {printf("Save img at %s\n", img_path.c_str());}//logoutNET_DVR_Logout_V30(lUserID);NET_DVR_Cleanup();return 0; }

• 編譯一下，就可以成功拍照且存檔了

Troubleshooting

• undefine reference 或 .so not found 或 pyd1—NET_DVR_CaptureJPEGPicture error, 107=> 沒有link_libraries或沒設定好LD_LIBRARY_PATH
• can’t find HCNetSDK.h => include_directories 沒設定
• libcrypto.so.1.0.0 warning跳出多行 => 直接刪掉海康SDK的libcrypto.so.1.0.0

總結

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