海康威视相机采集图像程序C+
时间: 2023-11-29 10:05:51 浏览: 34
海康威视相机的采集图像程序可以使用官方提供的 SDK 实现。以下是一个简单的 C++ 程序示例,演示如何使用 SDK 实现海康威视相机的图像采集:
```c++
#include <iostream>
#include "HCNetSDK.h"
#include "PlayM4.h"
using namespace std;
// 设备登录参数
NET_DVR_USER_LOGIN_INFO struLoginInfo = {0};
// 设备信息
NET_DVR_DEVICEINFO_V40 struDeviceInfo = {0};
// 实时预览句柄
LONG lRealPlayHandle = -1;
// 实时预览回调函数
void CALLBACK RealDataCallBack_V30(LONG lRealHandle, DWORD dwDataType, BYTE *pBuffer, DWORD dwBufSize, void* dwUser)
{
switch (dwDataType)
{
case NET_DVR_SYSHEAD:
if (!PlayM4_GetPort(&dwUser))
{
break;
}
if (dwBufSize > 0)
{
if (!PlayM4_SetStreamOpenMode(dwUser, STREAME_REALTIME))
{
break;
}
if (!PlayM4_OpenStream(dwUser, pBuffer, dwBufSize, 1024*1024))
{
break;
}
if (!PlayM4_Play(dwUser, NULL))
{
break;
}
}
break;
case NET_DVR_STREAMDATA:
if (dwBufSize > 0 && dwUser != NULL)
{
if (!PlayM4_InputData(dwUser, pBuffer, dwBufSize))
{
break;
}
}
break;
default:
if (dwBufSize > 0 && dwUser != NULL)
{
if (!PlayM4_InputData(dwUser, pBuffer, dwBufSize))
{
break;
}
}
break;
}
}
int main(int argc, char* argv[])
{
// 初始化 SDK
NET_DVR_Init();
// 设置登录参数
struLoginInfo.bUseAsynLogin = false;
strcpy(struLoginInfo.sDeviceAddress, "192.168.1.100");
struLoginInfo.wPort = 8000;
strcpy(struLoginInfo.sUserName, "admin");
strcpy(struLoginInfo.sPassword, "123456");
// 登录设备
LONG lUserID = NET_DVR_Login_V40(&struLoginInfo, &struDeviceInfo);
if (lUserID < 0)
{
cout << "Login failed, error code: " << NET_DVR_GetLastError() << endl;
NET_DVR_Cleanup();
return -1;
}
// 设置预览参数
NET_DVR_PREVIEWINFO struPlayInfo = {0};
struPlayInfo.hPlayWnd = NULL;
struPlayInfo.lChannel = 1;
struPlayInfo.dwStreamType = 0;
struPlayInfo.dwLinkMode = 0;
struPlayInfo.bBlocked = true;
struPlayInfo.byProtoType = 0;
struPlayInfo.byPreviewMode = 0;
// 开始预览
lRealPlayHandle = NET_DVR_RealPlay_V40(lUserID, &struPlayInfo, RealDataCallBack_V30, NULL);
if (lRealPlayHandle < 0)
{
cout << "Start preview failed, error code: " << NET_DVR_GetLastError() << endl;
NET_DVR_Logout(lUserID);
NET_DVR_Cleanup();
return -1;
}
// 等待用户按下任意键停止预览
cout << "Press any key to stop preview." << endl;
cin.get();
// 停止预览
if (!NET_DVR_StopRealPlay(lRealPlayHandle))
{
cout << "Stop preview failed, error code: " << NET_DVR_GetLastError() << endl;
NET_DVR_Logout(lUserID);
NET_DVR_Cleanup();
return -1;
}
// 注销登录
if (!NET_DVR_Logout(lUserID))
{
cout << "Logout failed, error code: " << NET_DVR_GetLastError() << endl;
NET_DVR_Cleanup();
return -1;
}
// 释放 SDK 资源
NET_DVR_Cleanup();
return 0;
}
```
注意,上述代码仅供参考,具体应根据实际情况进行修改和优化。另外,使用海康威视相机的 SDK 进行图像采集需要注意相机的型号和参数设置。