Panduan pembangunan menengah Java Hikvision SDK yang ringkas dan mudah difahami

import com.sun.jna.Native;
import com.sun.jna.ptr.IntByReference;
import com.hikvision.netsdk.HCNetSDK;
import com.hikvision.netsdk.NET_DVR_DEVICEINFO_V30;
import com.hikvision.netsdk.NET_DVR_IPPARACFG_V40;
import com.hikvision.netsdk.NET_DVR_PREVIEWINFO;
import com.hikvision.netsdk.NET_DVR_USER_LOGIN_INFO;
import com.hikvision.netsdk.NET_DVR_VIDEOEFFECT;
import com.hikvision.netsdk.RealPlayCallBack;

public class VideoMonitor {
    public static void main(String[] args) {
        // 初始化SDK
        HCNetSDK.INSTANCE.NET_DVR_Init();

        // 登录设备
        NET_DVR_USER_LOGIN_INFO loginInfo = new NET_DVR_USER_LOGIN_INFO();
        loginInfo.sDeviceAddress = "192.168.1.100";
        loginInfo.wPort = 8000;
        loginInfo.sUserName = "admin";
        loginInfo.sPassword = "123456";
        loginInfo.write();
        IntByReference userID = new IntByReference(-1);
        NET_DVR_DEVICEINFO_V30 deviceInfo = new NET_DVR_DEVICEINFO_V30();
        userID.setValue(HCNetSDK.INSTANCE.NET_DVR_Login_V30(loginInfo.getPointer(), deviceInfo.getPointer()));
        if (userID.getValue() < 0) {
            System.out.println("登录设备失败");
            return;
        }

        // 设置视频预览参数
        NET_DVR_PREVIEWINFO previewInfo = new NET_DVR_PREVIEWINFO();
        previewInfo.lChannel = 1;
        previewInfo.dwStreamType = 0;
        previewInfo.dwLinkMode = 0;
        previewInfo.hPlayWnd = null;
        previewInfo.bBlocked = true;
        previewInfo.write();

        // 开始预览
        RealPlayCallBack fRealDataCallBack = (iRealHandle, iDataType, pDataBuffer, iDataSize) -> {
            // 处理实时视频数据
        };
        NativeLong handle = HCNetSDK.INSTANCE.NET_DVR_RealPlay_V40(userID.getValue(), previewInfo.getPointer(), fRealDataCallBack, null);
        if (handle.intValue() < 0) {
            System.out.println("预览失败");
            HCNetSDK.INSTANCE.NET_DVR_Logout(userID.getValue());
            HCNetSDK.INSTANCE.NET_DVR_Cleanup();
            return;
        }

        // 其他操作...

        // 关闭预览
        if (!HCNetSDK.INSTANCE.NET_DVR_StopRealPlay(handle)) {
            System.out.println("停止预览失败");
        }

        // 注销登录
        HCNetSDK.INSTANCE.NET_DVR_Logout(userID.getValue());

        // 释放SDK资源
        HCNetSDK.INSTANCE.NET_DVR_Cleanup();
    }
}