C# 外接(网口)双摄像头视频获取

dotnet编程大全

专注C#wpf开发，dotnet编程大全

【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/downlo ad_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);