海康视频下载，以及实时视频预览

1 <!-- https://mvnrepository.com/artifact/com.sun.jna/jna -->
2 <dependency>
3     <groupId>com.sun.jna</groupId>
4     <artifactId>jna</artifactId>
5     <version>3.0.9</version>
6 </dependency>
7             

  1 package atest;
  2 
  3 import java.util.Timer;
  4 
  5 import javax.swing.JOptionPane;
  6 
  7 import com.sun.jna.Native;
  8 import com.sun.jna.NativeLong;
  9 import com.sun.jna.Union;
 10 import com.sun.jna.examples.win32.W32API.HWND;
 11 import com.sun.jna.ptr.IntByReference;
 12 
 13 import ClientDemo.ClientDemo;
 14 import ClientDemo.HCNetSDK;
 15 
 16 public class Test {
 17     static HCNetSDK hCNetSDK = HCNetSDK.INSTANCE;
 18     static HCNetSDK.NET_DVR_DEVICEINFO_V30 m_strDeviceInfo;// 设备信息
 19     static HCNetSDK.NET_DVR_IPPARACFG m_strIpparaCfg;// IP参数
 20     static HCNetSDK.NET_DVR_CLIENTINFO m_strClientInfo;// 用户参数
 21     static NativeLong lUserID;// 用户句柄
 22     static NativeLong m_lLoadHandle;// 下载句柄
 23     static String sDeviceIP;// IP
 24     static Timer Downloadtimer;
 25 
 26     public void A_d() {
 27         // =====================1. 初始化开始====================================
 28         boolean initfalse = hCNetSDK.NET_DVR_Init();// 初始化
 29         if (initfalse != true) {
 30             System.out.println("初始化失败！");
 31         } else {
 32             System.out.println("初始化成功！");
 33         }
 34         // =====================初始化结束=====================================
 35 
 36         // =====================2. 注册服务开始====================================
 37         sDeviceIP = "92.206.75.30";// IP
 38         int iPort = 8000;// 端口号
 39         String textFieldUserName = "admin";// 用户名
 40         String passwordFieldPwd = "fpga12345";// 密码
 41 
 42         m_strDeviceInfo = new HCNetSDK.NET_DVR_DEVICEINFO_V30();
 43         lUserID = hCNetSDK.NET_DVR_Login_V30(sDeviceIP, (short) iPort, textFieldUserName, passwordFieldPwd,
 44                 m_strDeviceInfo);
 45         long userID = lUserID.longValue();
 46         if (userID >= 0) {
 47             System.out.println("登陆注册成功");
 48         } else if (userID == -1) {
 49             System.out.println("登陆注册失败");
 50         }
 51 
 52         // =====================注册服务结束====================================
 53         
 54         
 55         // =====================按照开始时间和结束时间下载视频 开始====================================
 56         m_lLoadHandle = new NativeLong(-1);
 57         if (m_lLoadHandle.intValue() == -1) {
 58             HCNetSDK.NET_DVR_TIME struStartTime;
 59             HCNetSDK.NET_DVR_TIME struStopTime;
 60 
 61             struStartTime = new HCNetSDK.NET_DVR_TIME();
 62             struStopTime = new HCNetSDK.NET_DVR_TIME();
 63             struStartTime.dwYear = Integer.parseInt("2019");// 开始时间
 64             struStartTime.dwMonth = Integer.parseInt("3");
 65             struStartTime.dwDay = Integer.parseInt("26");
 66             struStartTime.dwHour = Integer.parseInt("18");
 67             struStartTime.dwMinute = Integer.parseInt("0");
 68             struStartTime.dwSecond = Integer.parseInt("0");
 69             
 70             struStopTime.dwYear = Integer.parseInt("2019");// 结束时间
 71             struStopTime.dwMonth = Integer.parseInt("3");
 72             struStopTime.dwDay = Integer.parseInt("26");
 73             struStopTime.dwHour = Integer.parseInt("18");
 74             struStopTime.dwMinute = Integer.parseInt("5");
 75             struStopTime.dwSecond = Integer.parseInt("0");
 76             int m_iChanShowNum = 1;// 通道（摄像头IP地址）
 77 
 78             String sFileName = "H:\\test\\" + sDeviceIP + m_iChanShowNum + struStartTime.toStringTitle() + struStopTime.toStringTitle() + ".mp4";
 79             System.out.println(sFileName);
 80             
 81             // 视频下载调用
 82             m_lLoadHandle = hCNetSDK.NET_DVR_GetFileByTime(lUserID, new NativeLong(m_iChanShowNum), struStartTime,
 83                     struStopTime, sFileName);
 84             if (m_lLoadHandle.intValue() >= 0) {
 85                 hCNetSDK.NET_DVR_PlayBackControl(m_lLoadHandle, HCNetSDK.NET_DVR_PLAYSTART, 0, null);
 86                 Downloadtimer = new Timer();// 新建定时器
 87                 Downloadtimer.schedule(new DownloadTask(), 0, 5000);// 0秒后开始响应函数
 88                 // System.out.println("视频下载成功！");
 89             } else {
 90                 System.out.println("下载失败");// 按时间
 91                 System.out.println("laste error " + hCNetSDK.NET_DVR_GetLastError());
 92                 return;
 93             }
 94         }
 95     }
 96 
 97     /*************************************************
 98      * 类: DownloadTask 类描述: 下载定时器响应函数
 99      *************************************************/
100     class DownloadTask extends java.util.TimerTask {
101         // 定时器函数
102         @Override
103         public void run() {
104             IntByReference nPos = new IntByReference(0);
105             hCNetSDK.NET_DVR_PlayBackControl(m_lLoadHandle, HCNetSDK.NET_DVR_PLAYGETPOS, 0, nPos);
106             if (nPos.getValue() > 100) {
107                 hCNetSDK.NET_DVR_StopGetFile(m_lLoadHandle);
108                 m_lLoadHandle.setValue(-1);
109                 Downloadtimer.cancel();
110                 System.out.println("由于网络原因或DVR忙,下载异常终止!");
111             }
112             if (nPos.getValue() == 100) {
113                 hCNetSDK.NET_DVR_StopGetFile(m_lLoadHandle);
114                 m_lLoadHandle.setValue(-1);
115                 Downloadtimer.cancel();
116                 System.out.println("按时间下载结束!");
117             }
118         }
119     }
120 
121 }

1 package atest;
2 
3 public class Test_Main {
4     public static void main(String[] args) {
5         Test test = new Test();
6         test.A_d();
7     }
8 }