C# 外接(网口)双摄像头视频获取
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【注意事项】
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1. 更新设备网络SDK时，SDK开发包【库文件】里的HCNetSDK.dll、HCCore.dll、PlayCtrl.dll、SuperRender.dll、AudioRender.dll、HCNetSDKCom文件夹、ssleay32.dll、libeay32.dll、hlog.dll、hpr.dll、zlib1.dll、log4cxx.properties等文件均要加载到程序里面，【HCNetSDKCom文件夹】（包含里面的功能组件dll库文件）需要和HCNetSDK.dll、HCCore.dll一起加载，放在同一个目录下，且HCNetSDKCom文件夹名不能修改。
2. 如果自行开发软件不能正常实现相应功能，而且程序没有指定加载的dll库路径，请在程序运行的情况下尝试删除HCNetSDK.dll。如果可以删除，说明程序可能调用到系统盘Windows->System32目录下的dll文件，建议删除或者更新该目录下的相关dll文件；如果不能删除，dll文件右键选择属性确认SDK库版本。
3. 如按上述步骤操作后还是不能实现相应功能，请根据NET_DVR_GetLastError返回的错误号判断原因。
4.适用型号：DS-2CD2D15DWD 2.8MM，DS-2CD6424FWD-20 3.7MM，DS-2CD6425FWD-20 2.8MM B
5.dll和sdk可以上海康官网下载：https://www.hikvision.com/cn/download_61.html
Form1.cs:
using System;
using System.Threading.Tasks;
using System.Windows.Forms;
namespace WindowsFormsApp1
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
init();
}
public IntPtr PictureDev1Cam { get { return pictureBox1.Handle; } }
public IntPtr PictureDev2Cam { get { return pictureBox2.Handle; } }
IntPtr Cam1Handle = IntPtr.Zero;
IntPtr Cam2Handle = IntPtr.Zero;
Cam Camera1 = new Cam();
Cam Camera2 = new Cam();
static private string Cam1IP = "192.168.1.64";
static private string Cam2IP = "192.168.1.61";
void init()
{
Cam1Handle = PictureDev1Cam;
Cam2Handle = PictureDev2Cam;
}
private void ConnectCamera(int whitch)
{
string userName = "admin";
string password = "a123456.";
int PortCamera = 8000;
if (whitch == 1)
{
labelCamera1Status.Text = "摄像头连接中...";
Task.Run(() =>
{
if (!Camera1.ConnectCamera(Cam1IP, PortCamera, userName, password))
{
this.Invoke((Action)delegate { labelCamera1Status.Text = "摄像头连接失败"; });
}
else
{
this.Invoke((Action)delegate { labelCamera1Status.Text = ""; });
Camera1.Preview(Cam1Handle);
Camera1.AdjustMirrorPara(1);
Cam1ReconnectTimer.Stop();
}
});
}
else
{
labelCamera2Status.Text = "摄像头连接中...";
Task.Run(() =>
{
if (!Camera2.ConnectCamera(Cam2IP, PortCamera, userName, password))
{
this.Invoke((Action)delegate { labelCamera2Status.Text = "摄像头连接失败"; });
}
else
{
this.Invoke((Action)delegate { labelCamera2Status.Text = ""; });
Camera2.Preview(Cam2Handle);
Camera2.AdjustMirrorPara(1);
Cam2ReconnectTimer.Stop();
}
});
}
}
private void Cam1ReconnectTimer_Tick(object sender, EventArgs e)
{
ConnectCamera(1);
}
private void Cam2ReconnectTimer_Tick(object sender, EventArgs e)
{
ConnectCamera(2);
}
private void Form1_Load(object sender, EventArgs e)
{
}
}
}
cam:
using System;
using System.IO;
using System.Runtime.InteropServices;
namespace WindowsFormsApp1
{
class Cam
{
private bool initSDK = false;
private uint lastErr = 0;
private string debugMessage = "";
private bool err = false;
private Int32 userID = -1;
public bool Isconnected { get; private set; }
UInt32 dwReturn = 0;
Int32 nSize = 0;
IntPtr ptrPicCfg;
private CHCNetSDK.NET_DVR_CAMERAPARAMCFG_EX camPara = new CHCNetSDK.NET_DVR_CAMERAPARAMCFG_EX();
private CHCNetSDK.NET_DVR_DEVICEINFO_V30 DeviceInfo = new CHCNetSDK.NET_DVR_DEVICEINFO_V30();
private Int32 realPlayHandle = -1;
public bool ConnectCamera(string deviceIP, int port, string userName, string password)
{
initSDK = CHCNetSDK.NET_DVR_Init();
if (initSDK == false)
{
lastErr = CHCNetSDK.NET_DVR_GetLastError();
debugMessage = "初始化过程失败, 错误码：" + lastErr;
err = true;
return false;
}
else
{
CHCNetSDK.NET_DVR_SetLogToFile(3, Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "SdkLog\\\\"), true);
}
CHCNetSDK.NET_DVR_DEVICEINFO_V30 DeviceInfo = new CHCNetSDK.NET_DVR_DEVICEINFO_V30();
userID = CHCNetSDK.NET_DVR_Login_V30(deviceIP, port, userName, password, ref DeviceInfo);
if (userID < 0)
{
lastErr = CHCNetSDK.NET_DVR_GetLastError();
debugMessage = "注册失败, 错误码：" + lastErr;
err = true;
return false;
}
Isconnected = true;
return true;
}
public void AdjustMirrorPara(byte type)
{
dwReturn = 0;
nSize = Marshal.SizeOf(camPara);
ptrPicCfg = Marshal.AllocHGlobal(nSize);
Marshal.StructureToPtr(camPara, ptrPicCfg, false);
if (CHCNetSDK.NET_DVR_GetDVRConfig(userID, 3368, DeviceInfo.byStartChan, ptrPicCfg, (uint)nSize, ref dwReturn))
{
camPara = (CHCNetSDK.NET_DVR_CAMERAPARAMCFG_EX)Marshal.PtrToStructure(ptrPicCfg, typeof(CHCNetSDK.NET_DVR_CAMERAPARAMCFG_EX));
Marshal.FreeHGlobal(ptrPicCfg);
camPara.byMirror = type;
ptrPicCfg = Marshal.AllocHGlobal(nSize);
Marshal.StructureToPtr(camPara, ptrPicCfg, false);
if (!CHCNetSDK.NET_DVR_SetDVRConfig(userID, 3369, DeviceInfo.byStartChan, ptrPicCfg, (uint)nSize))
{
lastErr = CHCNetSDK.NET_DVR_GetLastError();
debugMessage = "设置镜像关闭失败, 错误码：" + lastErr;
err = true;
}
}
else
{
lastErr = CHCNetSDK.NET_DVR_GetLastError();
debugMessage = "获取参数失败, 错误码：" + lastErr;
err = true;
}
Marshal.FreeHGlobal(ptrPicCfg);
}
public void Preview(IntPtr handle)
{
CHCNetSDK.NET_DVR_PREVIEWINFO previewInfo = new CHCNetSDK.NET_DVR_PREVIEWINFO();
previewInfo.hPlayWnd = handle;//预览窗口
previewInfo.lChannel = 1;//(int)DeviceInfo.byStartChan;//预览的设备通道
previewInfo.dwStreamType = 0;//码流类型：0-主码流，1-子码流，2-码流3，3-码流4，以此类推
previewInfo.dwLinkMode = 0;//连接方式：0- TCP方式，1- UDP方式，2- 多播方式，3- RTP方式，4-RTP/RTSP，5-RSTP/HTTP
previewInfo.bBlocked = true; //0- 非阻塞取流，1- 阻塞取流
previewInfo.dwDisplayBufNum = 0; //播放库播放缓冲区最大缓冲帧数
//CHCNetSDK.REALDATACALLBACK RealData = new CHCNetSDK.REALDATACALLBACK(RealDataCallBack);//预览实时流回调函数
IntPtr pUser = new IntPtr();//用户数据
//打开预览 Start live view
realPlayHandle = CHCNetSDK.NET_DVR_RealPlay_V40(userID, ref previewInfo, null/*RealData*/, pUser);
if (realPlayHandle < 0)
{
lastErr = CHCNetSDK.NET_DVR_GetLastError();
debugMessage = "预览失败, 错误码：" + lastErr; //预览失败，输出错误号
err = true;
//MessageBox.Show(str);
return;
}
}
}
}
CHCNetSDK.cs
这个太长，需要的可以上我的github下载，省略，我的账号zyr365
工程文件
bin目录
定时器：
运行结果：
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