Java SDK调用 海康网络摄像头 多摄像头同时预览 并取流

文章来源地址https://uudwc.com/A/MPxw

(修改前言:最近公司需求又对接海康的人脸设备,也就刚刚好有时间重新整理写的这篇博客,看评论也有很多人说有问题 demo无法跑通 小编在这呢 也重新测一遍 也会将一些细节更详细的列出来吗 同时呢  除了之前写的这套方案,小编在这也会再提供一个方案)

写在前面:

最近也遇到了调用海康多个摄像头实现同时预览的需求,不`过官方demo里并没详细的案例,上网查了下资料,也找不到对应的解决方案 ,电话咨询海康技术,没接过,信息没回过。这里就不对海康技术支持多作评价了,废话不多说。上方案!

小编首先整理了文档和获取流程(如图)

然后小编根据这个思路将SDK的Demo流程整个看了一遍,终于发现了问题的所在,接下来直接上代码(个人是根据海康提供的demo进行简单的修改,将部分公共代码给抽了出来,另外小编只用到了预览录制和停止录制功能,解码和其他功能小编没用到,所以小编在这里都干掉了。尽量能简洁易懂就简介易懂,大佬勿喷!仅供参考和提供思路!!!!!!)

1 首先去官网下载海康的demo和文档,地址不知道?没关系 我给你啦!

https://open.hikvision.com/download/5cda567cf47ae80dd41a54b3?type=10

选择立即下载

2  选择java开发示例,然后选择预览回放和下载

 官网的demo示例就在这啦 不过 要注意官方的提示文件 根据上面的注意事项 导入文件到你的项目中

(然后就可以开始进行Demo调试啦)

具体流程如下:

1 初始化设备 并定义一个list集合存储用户句柄 

   
   public static List<Integer> lUserIDList = new ArrayList<>();//用户句柄集合
         //初始化
    private static   void init() {

        //SDK初始化,一个程序只需要调用一次
        boolean initSuc = hCNetSDK.NET_DVR_Init();

        if (initSuc != true) {
            System.out.println("初始化失败");
        }

        //异常消息回调
        if (fExceptionCallBack == null) {
            fExceptionCallBack = new FExceptionCallBack_Imp();
        }

        Pointer pUser = null;
        if (!hCNetSDK.NET_DVR_SetExceptionCallBack_V30(0, 0, fExceptionCallBack, pUser)) {
            return;
        }
        System.out.println("设置异常消息回调成功");

        //启动SDK写日志
        hCNetSDK.NET_DVR_SetLogToFile(3, "..\\sdkLog\\", false);

    }

 2 登陆设备(只是演示和提供思路 具体实现请各位大佬根据实际业务)

登陆一台设备就会返回一个用户句柄也可称登陆句柄,后续调用预览是根据用户句柄来区分和管理的。

唯一注意的是,设备登陆后的返回值需要保存!登陆完后创建保存回调函数的音频数据文件

(注意:你的设备要和你自己的网络在同一个网段!!!!!!!查看电脑的网段 win+R 输入cmd  你的电脑是192.16.0段的 把摄像头的ip地址和网关也改成同段的 不然会报错误码7或错误码8等)

      //登陆
    private static void login(){

        //存储登陆设备集合
        List<Device> list = new ArrayList<>();
        Device device = new Device();
        device.setIp("192.168.1.16"); //改成自己设备的ip 用户名和密码
        device.setUserName("admin");
        device.setPassWord("Admin123");
        Device devic1 = new Device();
        device.setIp("192.168.1.17");
        device.setUserName("admin");
        device.setPassWord("Admin123");
        list.add(device);
        list.add(devic1);

        //登录设备,每一台设备分别登录; 登录句柄是唯一的,可以区分设备
        HCNetSDK.NET_DVR_USER_LOGIN_INFO m_strLoginInfo;//设备登录信息
        HCNetSDK.NET_DVR_DEVICEINFO_V40 m_strDeviceInfo;//设备信息

        for (Device d : list) {
            m_strLoginInfo = new HCNetSDK.NET_DVR_USER_LOGIN_INFO();//设备登录信息
            m_strDeviceInfo = new HCNetSDK.NET_DVR_DEVICEINFO_V40();//设备信息
            String m_sDeviceIP = d.getIp();//设备ip地址
            m_strLoginInfo.sDeviceAddress = new byte[HCNetSDK.NET_DVR_DEV_ADDRESS_MAX_LEN];
            System.arraycopy(m_sDeviceIP.getBytes(), 0, m_strLoginInfo.sDeviceAddress, 0, m_sDeviceIP.length());

            String m_sUsername = d.getUserName();//设备用户名
            m_strLoginInfo.sUserName = new byte[HCNetSDK.NET_DVR_LOGIN_USERNAME_MAX_LEN];
            System.arraycopy(m_sUsername.getBytes(), 0, m_strLoginInfo.sUserName, 0, m_sUsername.length());

            String m_sPassword = d.getPassWord();//设备密码
            m_strLoginInfo.sPassword = new byte[HCNetSDK.NET_DVR_LOGIN_PASSWD_MAX_LEN];
            System.arraycopy(m_sPassword.getBytes(), 0, m_strLoginInfo.sPassword, 0, m_sPassword.length());

            m_strLoginInfo.wPort = 8000; //SDK端口
            m_strLoginInfo.bUseAsynLogin = false; //是否异步登录:0- 否,1- 是
            m_strLoginInfo.write();
            lUserID = hCNetSDK.NET_DVR_Login_V40(m_strLoginInfo, m_strDeviceInfo);

            //将登陆返回的用户句柄保存!(这里很重要 是原先官网没有的,这里保存句柄是为了预览使用)
            lUserIDList.add(lUserID);

            if (lUserID==-1) {
                System.out.println("登录失败,错误码为" + hCNetSDK.NET_DVR_GetLastError());
            } else {
                System.out.println("设备登录成功! " + "设备序列号:" + new String(m_strDeviceInfo.struDeviceV30.sSerialNumber).trim());
                m_strDeviceInfo.read();
            }
            //保存回调函数的音频数据
            VideoDemo.setFile(lUserID);

        }
    }

3 创建保存回调函数的音频数据文件  同时创建一个map集合 保存对应的文件输出流 键为登陆后返回的用户句柄

  //定义流的map集合 键为用户句柄(也就是你登陆返回的句柄)
 static Map<Integer, FileOutputStream> outputStreamMap = new HashMap();
 public static void setFile(int userId) {
        file = new File("/Download/" + new Date().getTime() + "(" + userId + ")" + ".mp4");  //保存回调函数的音频数据

        if (!file.exists()) {
            try {
                file.createNewFile();
            } catch (Exception e) {
                e.printStackTrace();
            }
        }
//            FileOutputStream outputStream=new FileOutputStream(file);
        try {

            outputStreamMap.put(userId, new FileOutputStream(file));
        } catch (FileNotFoundException e) {
            e.printStackTrace();
        }
    }

4 线程run中执行预览代码 通过调用NET_DVR_RealPlay_V40实现预览

   @Override
    public void run() {
        fRealDataCallBack = null;
        if (userId == -1) {
            System.out.println("请先注册");
            return;
        }
    HCNetSDK.NET_DVR_PREVIEWINFO strClientInfo = new HCNetSDK.NET_DVR_PREVIEWINFO();
        strClientInfo.read();
        strClientInfo.hPlayWnd =null;  //窗口句柄,从回调取流不显示一般设置为空
        strClientInfo.lChannel = 1;  //通道号
        strClientInfo.dwStreamType = 0; //0-主码流,1-子码流,2-三码流,3-虚拟码流,以此类推
        strClientInfo.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- RTP/HTTP,6- HRUDP(可靠传输) ,7- RTSP/HTTPS,8- NPQ
        strClientInfo.bBlocked = 1;
        strClientInfo.write();

        if (fRealDataCallBack == null) {
            fRealDataCallBack = new FRealDataCallBack();
        }
        //开启预览
        lPlay = hCNetSDK.NET_DVR_RealPlay_V40(userId, strClientInfo, fRealDataCallBack, null);
        if (lPlay == -1) {
            int iErr = hCNetSDK.NET_DVR_GetLastError();
            System.out.println("取流失败" + iErr);
            return;
        }
        System.out.println("取流成功");
    }

5 修改回调函数 这里的回调函数参数都是sdk规定好的 在回调中取出集合中对应的流进行文件输出

    static class FRealDataCallBack implements HCNetSDK.FRealDataCallBack_V30 {

        //预览回调
        public void invoke(int lRealHandle, int dwDataType, ByteByReference pBuffer, int dwBufSize, Pointer pUser) {

//            System.out.println(lRealHandle + "码流数据回调" + pBuffer + ", 数据类型: " + dwDataType + ", 数据长度:" + dwBufSize + "puser:" + pUser);
            long offset = 0;

            ByteBuffer buffers = pBuffer.getPointer().getByteBuffer(offset, dwBufSize);

            byte[] bytes = new byte[dwBufSize];
            buffers.rewind();
            buffers.get(bytes);
            try {
                //根据lRealHandle从map中取出对应的流读取数据
                outputStreamMap.get(lRealHandle).write(bytes);
            } catch (Exception e) {
                e.printStackTrace();
            }
        }


    }

6 开启线程 

   public static void main(String[] args) throws InterruptedException {

        if (hCNetSDK == null && playControl == null) {
            if (!CreateSDKInstance()) {
                System.out.println("Load SDK fail");
                return;
            }
            if (!CreatePlayInstance()) {
                System.out.println("Load PlayCtrl fail");
                return;
            }
        }
        //linux系统建议调用以下接口加载组件库
        if (osSelect.isLinux()) {
            HCNetSDK.BYTE_ARRAY ptrByteArray1 = new HCNetSDK.BYTE_ARRAY(256);
            HCNetSDK.BYTE_ARRAY ptrByteArray2 = new HCNetSDK.BYTE_ARRAY(256);
            //这里是库的绝对路径,请根据实际情况修改,注意改路径必须有访问权限
            String strPath1 = System.getProperty("user.dir") + "/lib/libcrypto.so.1.1";
            String strPath2 = System.getProperty("user.dir") + "/lib/libssl.so.1.1";

            System.arraycopy(strPath1.getBytes(), 0, ptrByteArray1.byValue, 0, strPath1.length());
            ptrByteArray1.write();
            hCNetSDK.NET_DVR_SetSDKInitCfg(3, ptrByteArray1.getPointer());

            System.arraycopy(strPath2.getBytes(), 0, ptrByteArray2.byValue, 0, strPath2.length());
            ptrByteArray2.write();
            hCNetSDK.NET_DVR_SetSDKInitCfg(4, ptrByteArray2.getPointer());

            String strPathCom = System.getProperty("user.dir") + "/lib";
            HCNetSDK.NET_DVR_LOCAL_SDK_PATH struComPath = new HCNetSDK.NET_DVR_LOCAL_SDK_PATH();
            System.arraycopy(strPathCom.getBytes(), 0, struComPath.sPath, 0, strPathCom.length());
            struComPath.write();
            hCNetSDK.NET_DVR_SetSDKInitCfg(2, struComPath.getPointer());
        }

        //初始化
        init();

        //登陆
        login();


        // 创建线程池对象指定线程数量
        ExecutorService tp = Executors.newFixedThreadPool(2);

        VideoDemo video1=new VideoDemo(lUserIDList.get(0), 1);
        VideoDemo video2=new VideoDemo(lUserIDList.get(1),1) ;

        tp.submit(video1);
        tp.submit(video2);
    }

以上代码生成的视频在你盘符+Download 文件夹里面去找(如图所示) 

 注意:你现在生成的视频是无法直接查看的 需要用到海康的播放软件解码查看! 啥软件? 我把链接给你啦

https://www.hikvision.com/cn/support/Downloads/Desktop-Application/Hikvision-Player/

插件打开效果如图:

方案一 完整代码:

package com.NetSDKDemo;

import Common.osSelect;
import com.Device;
import com.sun.jna.Native;
import com.sun.jna.Pointer;

import java.util.ArrayList;
import java.util.List;
import java.util.Timer;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;

/**
 * @create 2020-12-24-17:55
 */
public class ClinetDemo {


    static HCNetSDK hCNetSDK = null;
    static PlayCtrl playControl = null;
    static int lUserID = 0;//用户句柄
    public static List<Integer> lUserIDList = new ArrayList<>();//用户句柄

    static FExceptionCallBack_Imp fExceptionCallBack;


    static class FExceptionCallBack_Imp implements HCNetSDK.FExceptionCallBack {
        public void invoke(int dwType, int lUserID, int lHandle, Pointer pUser) {
            System.out.println("异常事件类型:" + dwType);
            return;
        }
    }

    public static void main(String[] args) throws InterruptedException {

        if (hCNetSDK == null && playControl == null) {
            if (!CreateSDKInstance()) {
                System.out.println("Load SDK fail");
                return;
            }
            if (!CreatePlayInstance()) {
                System.out.println("Load PlayCtrl fail");
                return;
            }
        }
        //linux系统建议调用以下接口加载组件库
        if (osSelect.isLinux()) {
            HCNetSDK.BYTE_ARRAY ptrByteArray1 = new HCNetSDK.BYTE_ARRAY(256);
            HCNetSDK.BYTE_ARRAY ptrByteArray2 = new HCNetSDK.BYTE_ARRAY(256);
            //这里是库的绝对路径,请根据实际情况修改,注意改路径必须有访问权限
            String strPath1 = System.getProperty("user.dir") + "/lib/libcrypto.so.1.1";
            String strPath2 = System.getProperty("user.dir") + "/lib/libssl.so.1.1";

            System.arraycopy(strPath1.getBytes(), 0, ptrByteArray1.byValue, 0, strPath1.length());
            ptrByteArray1.write();
            hCNetSDK.NET_DVR_SetSDKInitCfg(3, ptrByteArray1.getPointer());

            System.arraycopy(strPath2.getBytes(), 0, ptrByteArray2.byValue, 0, strPath2.length());
            ptrByteArray2.write();
            hCNetSDK.NET_DVR_SetSDKInitCfg(4, ptrByteArray2.getPointer());

            String strPathCom = System.getProperty("user.dir") + "/lib";
            HCNetSDK.NET_DVR_LOCAL_SDK_PATH struComPath = new HCNetSDK.NET_DVR_LOCAL_SDK_PATH();
            System.arraycopy(strPathCom.getBytes(), 0, struComPath.sPath, 0, strPathCom.length());
            struComPath.write();
            hCNetSDK.NET_DVR_SetSDKInitCfg(2, struComPath.getPointer());
        }

        //初始化
        init();

        //登陆
        login();


        // 创建线程池对象指定线程数量
        ExecutorService tp = Executors.newFixedThreadPool(2);

        VideoDemo video1=new VideoDemo(lUserIDList.get(0), 1);
        VideoDemo video2=new VideoDemo(lUserIDList.get(1),1) ;

        tp.submit(video1);
        tp.submit(video2);
    }



    //登陆
    private static void login(){

        //存储登陆设备集合
        List<Device> list = new ArrayList<>();
        Device device = new Device();
        device.setIp("192.168.1.11");
        device.setPassWord("admin");
        device.setPassWord("123456");
        Device device1 = new Device();
        device1.setIp("192.168.1.12");
        device1.setPassWord("admin");
        device1.setPassWord("123456");

        list.add(device);
        list.add(device1);

        //登录设备,每一台设备分别登录; 登录句柄是唯一的,可以区分设备
        HCNetSDK.NET_DVR_USER_LOGIN_INFO m_strLoginInfo;//设备登录信息
        HCNetSDK.NET_DVR_DEVICEINFO_V40 m_strDeviceInfo;//设备信息

        for (Device d : list) {
            m_strLoginInfo = new HCNetSDK.NET_DVR_USER_LOGIN_INFO();//设备登录信息
            m_strDeviceInfo = new HCNetSDK.NET_DVR_DEVICEINFO_V40();//设备信息
            String m_sDeviceIP = d.getIp();//设备ip地址
            m_strLoginInfo.sDeviceAddress = new byte[HCNetSDK.NET_DVR_DEV_ADDRESS_MAX_LEN];
            System.arraycopy(m_sDeviceIP.getBytes(), 0, m_strLoginInfo.sDeviceAddress, 0, m_sDeviceIP.length());

            String m_sUsername = d.getUserName();//设备用户名
            m_strLoginInfo.sUserName = new byte[HCNetSDK.NET_DVR_LOGIN_USERNAME_MAX_LEN];
            System.arraycopy(m_sUsername.getBytes(), 0, m_strLoginInfo.sUserName, 0, m_sUsername.length());

            String m_sPassword = d.getPassWord();//设备密码
            m_strLoginInfo.sPassword = new byte[HCNetSDK.NET_DVR_LOGIN_PASSWD_MAX_LEN];
            System.arraycopy(m_sPassword.getBytes(), 0, m_strLoginInfo.sPassword, 0, m_sPassword.length());

            m_strLoginInfo.wPort = 8000; //SDK端口
            m_strLoginInfo.bUseAsynLogin = false; //是否异步登录:0- 否,1- 是
            m_strLoginInfo.write();
            lUserID = hCNetSDK.NET_DVR_Login_V40(m_strLoginInfo, m_strDeviceInfo);

            //将登陆返回的用户句柄保存!(这里很重要 是原先官网没有的,这里保存句柄是为了预览使用)
            lUserIDList.add(lUserID);

            if (lUserID==-1) {
                System.out.println("登录失败,错误码为" + hCNetSDK.NET_DVR_GetLastError());
            } else {
                System.out.println("设备登录成功! " + "设备序列号:" + new String(m_strDeviceInfo.struDeviceV30.sSerialNumber).trim());
                m_strDeviceInfo.read();
            }
            //保存回调函数的音频数据
            VideoDemo.setFile(lUserID);

        }
    }


    //初始化
    private static   void init() {

        //SDK初始化,一个程序只需要调用一次
        boolean initSuc = hCNetSDK.NET_DVR_Init();

        if (initSuc != true) {
            System.out.println("初始化失败");
        }

        //异常消息回调
        if (fExceptionCallBack == null) {
            fExceptionCallBack = new FExceptionCallBack_Imp();
        }

        Pointer pUser = null;
        if (!hCNetSDK.NET_DVR_SetExceptionCallBack_V30(0, 0, fExceptionCallBack, pUser)) {
            return;
        }
        System.out.println("设置异常消息回调成功");

        //启动SDK写日志
        hCNetSDK.NET_DVR_SetLogToFile(3, "..\\sdkLog\\", false);

    }

    /**
     * 动态库加载
     *
     * @return
     */
    private static boolean CreateSDKInstance() {
        if (hCNetSDK == null) {
            synchronized (HCNetSDK.class) {
                String strDllPath = "";
                try {
                    if (osSelect.isWindows())
                        //win系统加载库路径
                        //strDllPath = System.getProperty("user.dir") + "\\lib\\HCNetSDK.dll";
                        strDllPath = "E:\\eclipse2019work\\ClientDemo-NetBeansPro\\HCNetSDK.dll";

                    else if (osSelect.isLinux())
                        //Linux系统加载库路径
                        //  strDllPath = System.getProperty("user.dir") + "/lib/libhcnetsdk.so";
                        strDllPath = "/usr/local/lib/libhcnetsdk.so";
                    hCNetSDK = (HCNetSDK) Native.loadLibrary(strDllPath, HCNetSDK.class);
                } catch (Exception ex) {
                    System.out.println("loadLibrary: " + strDllPath + " Error: " + ex.getMessage());
                    return false;
                }
            }
        }
        return true;
    }

    /**
     * 播放库加载
     *
     * @return
     */
    private static boolean CreatePlayInstance() {
        if (playControl == null) {
            synchronized (PlayCtrl.class) {
                String strPlayPath = "";
                try {
                    if (osSelect.isWindows())
                        //win系统加载库路径
                        strPlayPath = System.getProperty("user.dir") + "\\lib\\PlayCtrl.dll";
                    else if (osSelect.isLinux())
                        //Linux系统加载库路径
                        strPlayPath = System.getProperty("user.dir") + "/lib/libPlayCtrl.so";
                    playControl = (PlayCtrl) Native.loadLibrary("E:\\eclipse2019work\\ClientDemo-NetBeansPro\\PlayCtrl.dll", PlayCtrl.class);

                } catch (Exception ex) {
                    System.out.println("loadLibrary: " + strPlayPath + " Error: " + ex.getMessage());
                    return false;
                }
            }
        }
        return true;
    }

   //注销设备
    public void videoWrite() {



        //退出程序时调用,每一台设备分别注销

        for (int id : lUserIDList) {
            if (hCNetSDK.NET_DVR_Logout(id)) {
                System.out.println("注销成功");
            }
        }


        lUserIDList.clear();


        //SDK反初始化,释放资源,只需要退出时调用一次
        hCNetSDK.NET_DVR_Cleanup();


        VideoDemo.outputStreamMap.clear();
    }

}



package com.NetSDKDemo;

import com.sun.jna.Pointer;
import com.sun.jna.ptr.ByteByReference;
import com.sun.jna.ptr.IntByReference;

import java.io.*;
import java.lang.reflect.Parameter;
import java.nio.ByteBuffer;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.HashMap;
import java.util.Map;
import java.util.Timer;

import static com.NetSDKDemo.ClinetDemo.hCNetSDK;
import static com.NetSDKDemo.ClinetDemo.playControl;

/**
 * 视频取流预览,下载,抓图
 *
 * @create 2022-03-30-9:48
 */
public class VideoDemo implements Runnable{
    Timer Downloadtimer;//下载用定时器
    Timer Playbacktimer;//回放用定时器
    static FRealDataCallBack fRealDataCallBack;//预览回调函数实现
    //定义流的map集合
    static Map<Integer, FileOutputStream> outputStreamMap = new HashMap();
    static int lPlay = -1;  //预览句柄
    static File file;



    private Integer userId;

    private Integer iChannelNo;

    public VideoDemo(Integer userId, Integer iChannelNo) {
        this.userId = userId;
        this.iChannelNo = iChannelNo;
    }

    @Override
    public void run() {
        fRealDataCallBack = null;
        if (userId == -1) {
            System.out.println("请先注册");
            return;
        }
        HCNetSDK.NET_DVR_PREVIEWINFO strClientInfo = new HCNetSDK.NET_DVR_PREVIEWINFO();
        strClientInfo.read();
        strClientInfo.hPlayWnd = null;  //窗口句柄,从回调取流不显示一般设置为空
        strClientInfo.lChannel = iChannelNo;  //通道号
        strClientInfo.dwStreamType = 0; //0-主码流,1-子码流,2-三码流,3-虚拟码流,以此类推
        strClientInfo.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- RTP/HTTP,6- HRUDP(可靠传输) ,7- RTSP/HTTPS,8- NPQ
        strClientInfo.bBlocked = 1;
        strClientInfo.write();

        if (fRealDataCallBack == null) {
            fRealDataCallBack = new FRealDataCallBack();
        }
        //开启预览
        lPlay = hCNetSDK.NET_DVR_RealPlay_V40(userId, strClientInfo, fRealDataCallBack, null);
        if (lPlay == -1) {
            int iErr = hCNetSDK.NET_DVR_GetLastError();
            System.out.println("取流失败" + iErr);
            return;
        }
        System.out.println("取流成功");
    }



    //创建文件
    /**
     *
     *
     * @date 2022/8/31 23:37
     * @param userId:登陆返回的用户句柄
     */
    public static void setFile(int userId) {
        file = new File("/Download/" + new Date().getTime() + "(" + userId + ")" + ".mp4");  //保存回调函数的音频数据

        if (!file.exists()) {
            try {
                file.createNewFile();
            } catch (Exception e) {
                e.printStackTrace();
            }
        }
//            FileOutputStream outputStream=new FileOutputStream(file);
        try {

            outputStreamMap.put(userId, new FileOutputStream(file));
        } catch (FileNotFoundException e) {
            e.printStackTrace();
        }
    }





    static class FRealDataCallBack implements HCNetSDK.FRealDataCallBack_V30 {
        //预览回调
        public void invoke(int lRealHandle, int dwDataType, ByteByReference pBuffer, int dwBufSize, Pointer pUser) {
            long offset = 0;
            ByteBuffer buffers = pBuffer.getPointer().getByteBuffer(offset, dwBufSize);
            byte[] bytes = new byte[dwBufSize];
            buffers.rewind();
            buffers.get(bytes);
            try {
                //从map中取出对应的流读取数据
                outputStreamMap.get(lRealHandle).write(bytes);
            } catch (Exception e) {
                e.printStackTrace();
            }


        }
    }


}

实体类

package com;

/**
 * @author lws
 * @date 2022/8/31 23:07
 */
public class Device {
    private String ip;

    private String userName;

    private String passWord;

    public String getIp() {
        return ip;
    }

    public void setIp(String ip) {
        this.ip = ip;
    }

    public String getUserName() {
        return userName;
    }

    public void setUserName(String userName) {
        this.userName = userName;
    }

    public String getPassWord() {
        return passWord;
    }

    public void setPassWord(String passWord) {
        this.passWord = passWord;
    }
}

小编的代码目录结构

简单总结:

1 初始化

2 登陆设备 并保存登陆设备的用户句柄

3 创建保存回调函数的音频文件

4 创建map集合 存储对应的文件输出流,键为用户句柄

5 对回调函数进行修改 

(啊啊啊 博主给的代码有时候录制不同步!!!! 博主给的代码没有视频转码代码!!! 别急啦,往下个方案看看啦。注释就都在代码里了,这里就懒得写了哈)

改造后的代码(名字就叫TwoClientDemo)



public class TwoClientDemo {

    public static void main(String[] args) throws ExecutionException, InterruptedException {
        List<Device> devices = addDevice();
        TwoVideoDemo video;
        CameraInfo cameraInfo;
        FutureTask<Result> ft;
        for (int i = 0; i < devices.size(); i++) {
            cameraInfo = new CameraInfo();
            cameraInfo.setAddress(devices.get(i).getIp());
            cameraInfo.setPort((short) 8000);
            cameraInfo.setUserName(devices.get(i).getUserName());
            cameraInfo.setPwd(devices.get(i).getPassWord());

            video = new TwoVideoDemo(cameraInfo);

            ft = new FutureTask<>(video);
            new Thread(ft).start();
            //模拟录制过程
            Thread.sleep(5000);
            ft.get();

            System.out.println("取流成功");
        }
//                renderSuccess(result);


}


    //存储登陆设备集合
    public static List<Device> addDevice() {
        List<Device> list = new ArrayList<>();
        Device device = new Device();
        device.setIp("192.168.1.16"); //改成自己设备的ip 用户名和密码
        device.setUserName("admin");
        device.setPassWord("Admin123");
        list.add(device);
//        Device devic1 = new Device();
//        device.setIp("192.168.1.17");
//        device.setUserName("admin");
//        device.setPassWord("Admin123");
//        list.add(devic1);

        return list;
    }

}

(值得注意的一点哈!!! 方案二自己改下这里的路径) 

然后线程实现类 改改 回调函数啥也别写了 直接调海康sdk接口取流即可 

线程实现类

public class TwoVideoDemo implements Callable<Result> {

    //初始化
    public static final HCNetSDK INSTANCE = HCNetSDK.INSTANCE;
    static HCNetSDK sdk;


    private CameraInfo cameraInfo;


    public TwoVideoDemo(CameraInfo cameraInfo) {
        this.cameraInfo = cameraInfo;
    }
  @Override
    public Result call() throws Exception {
        sdk = INSTANCE;
        if (!sdk.NET_DVR_Init()) {

            System.out.println("初始化失败..................");
        }

        //创建设备
        HCNetSDK.NET_DVR_DEVICEINFO_V30 deInfo = new HCNetSDK.NET_DVR_DEVICEINFO_V30();

        //注册用户设备
        Integer id = sdk.NET_DVR_Login_V30(cameraInfo.getAddress(), cameraInfo.getPort(),
                cameraInfo.getUserName(), cameraInfo.getPwd(), deInfo);
        cameraInfo.setUserId(id);

        //判断是否注册成功
        if (cameraInfo.getUserId().intValue() < 0) {
            System.out.println("注册设备失败 错误码为:"+sdk.NET_DVR_GetLastError());
        } else {

            System.out.println("注册成功  Id为:      " + cameraInfo.getUserId().intValue());
        }

        //判断是否获取到设备能力
        HCNetSDK.NET_DVR_WORKSTATE_V30 devWork = new HCNetSDK.NET_DVR_WORKSTATE_V30();
        if (!sdk.NET_DVR_GetDVRWorkState_V30(cameraInfo.getUserId(), devWork)) {

            System.out.println("获取设备能力集失败,返回设备状态失败..............." + "错误码为:" + sdk.NET_DVR_GetLastError());
        }

        //启动实时预览功能  创建clientInfo对象赋值预览参数

        HCNetSDK.NET_DVR_CLIENTINFO clientInfo = new HCNetSDK.NET_DVR_CLIENTINFO();

        clientInfo.lChannel = 1;   //设置通道号
        clientInfo.lLinkMode = 0;  //TCP取流
        clientInfo.sMultiCastIP = null;                   //不启动多播模式

        //创建窗口句柄
        clientInfo.hPlayWnd = null;

        FRealDataCallBack fRealDataCallBack = new FRealDataCallBack();//预览回调函数实现

        while (true){

            //开启实时预览
            Integer key = sdk.NET_DVR_RealPlay_V30(cameraInfo.getUserId(), clientInfo, fRealDataCallBack, null, true);

            //判断是否预览成功
            if (key.intValue() == -1) {
                sdk.NET_DVR_Logout(cameraInfo.getUserId());
                sdk.NET_DVR_Cleanup();
            System.out.println("预览失败   错误代码为:  " + sdk.NET_DVR_GetLastError());
            }

            System.out.println("开始预览成功");


//            预览成功后 调用接口使视频资源保存到文件中
            if (!sdk.NET_DVR_SaveRealData(key, "/Download/" + new Date().getTime()  + ".mp4")) {
                sdk.NET_DVR_StopRealPlay(key);
                sdk.NET_DVR_Logout(cameraInfo.getUserId());
                sdk.NET_DVR_Cleanup();
            System.out.println("保存到文件失败 错误码为:  " + sdk.NET_DVR_GetLastError());
            }
            return Result.success("录制成功",null);
        }
    }


    /**
     * @param预览回调接口实现类
     */
    class FRealDataCallBack implements HCNetSDK.FRealDataCallBack_V30 {


        @Override
        public void invoke(int lRealHandle, int dwDataType, ByteByReference pBuffer, int dwBufSize, Pointer pUser) {

        }
    }



    //停止录制
    static void stopRecord(Integer i) {


        sdk.NET_DVR_Logout(i);
        sdk.NET_DVR_StopRealPlay(i);
        sdk.NET_DVR_Cleanup();


    }

}

Result(公共返回数据类)

package com.NetSDKDemo.comm;

public class Result {


    private boolean flag;
    private Integer code;
    private String message;
    private Object data;

    public Result() {
    }

    public Result(boolean flag, Integer code, String message, Object data) {
        super();
        this.flag = flag;
        this.code = code;
        this.message = message;
        this.data = data;
    }

    public Result(boolean flag, Integer code, String message) {
        super();
        this.flag = flag;
        this.code = code;
        this.message = message;
    }

    public boolean isFlag() {
        return flag;
    }

    public void setFlag(boolean flag) {
        this.flag = flag;
    }

    public Integer getCode() {
        return code;
    }

    public void setCode(Integer code) {
        this.code = code;
    }

    public String getMessage() {
        return message;
    }

    public void setMessage(String message) {
        this.message = message;
    }

    public Object getData() {
        return data;
    }

    public void setData(Object data) {
        this.data = data;
    }

    public static Result success(String msg, Object data) {
        return new Result(true, 200, msg, data);
    }

    public static Result error(String msg) {
        return new Result(false, 500, msg, null);
    }

    public static Result error(String msg, Object data,Integer code) {
        return new Result(true, code, msg, data);
    }
}

结果

解码工具类

public class FormatConverterUtils {

    /**
     * FFmpeg程序执行路径
     * 当前系统安装好ffmpeg程序并配置好相应的环境变量后,值为ffmpeg.exe可执行程序文件在实际系统中的绝对路径
     */
    //视频解码配置
    //linux下,路径肯定不是这样,是/root/xx这样子
//    public String outputPath = "/usr/local/tobaccocasedoc/Download/";
//    public String FFMPEG_PATH = "D:ffmpeg-master-latest-win64-gpl\\bin\\"; //linux中,路径为 /root/moch/ffmpeg-4.4-amd64-static/ 你自己在linux服务器上安装的路径
    public static String FFMPEG_PATH = "/usr/local/ffmpeg/ffmpeg-git-20220910-amd64-static/"; //linux中,路径为 /root/moch/ffmpeg-4.4-amd64-static/ 你自己在linux服务器上安装的路径




    /**
     * 音频转换器
     * @param resourcePath 需要被转换的音频文件全路径带文件名
     * @param targetPath 转换之后的音频文件全路径带文件名
     */
    public static void audioConverter(String resourcePath, String targetPath) {
        formatConverter(new File(resourcePath), new File(targetPath), false);
    }

    /**
     * 视频转换器
     * @param resourcePath 需要被转换的视频文件全路径带文件名
     * @param targetPath 转换之后的视频文件全路径带文件名
     */
    public static void videoConverter(String resourcePath, String targetPath) {

        formatConverter(new File(resourcePath), new File(targetPath), true);
    }

    /**
     * 文件格式转换器
     * 注意!此方法为按照需求进行拼接命令来完成音频视频文件的处理 命令拼接需要根据自己需求进行更改
     * 视频 或 音频
     * @param fileInput 源文件路径
     * @param fileOutPut 转换后的文件路径
     * @param isVideo 源文件是视频文件
     *
     */
    public static void formatConverter(File fileInput, File fileOutPut, boolean isVideo) {
        fileInput.setExecutable(true);//设置可执行权限
        fileInput.setReadable(true);//设置可读权限
        fileInput.setWritable(true);//设置可写权限


        fileOutPut.setExecutable(true);//设置可执行权限
        fileOutPut.setReadable(true);//设置可读权限
        fileOutPut.setWritable(true);//设置可写权限
        if (null == fileInput || !fileInput.exists()) {
            throw new RuntimeException("源文件不存在,请检查源路径");
        }
        if (null == fileOutPut) {
            throw new RuntimeException("转换后的路径为空,请检查转换后的存放路径是否正确");
        }

        if (!fileOutPut.exists()) {
            try {
                fileOutPut.createNewFile();
            } catch (IOException e) {
                System.out.println("转换时新建输出文件失败");
            }
        }
        List<String> commond = new ArrayList<String>();
        //输出直接覆盖文件
        commond.add("-y");
        commond.add("-i");
        commond.add(fileInput.getAbsolutePath());
        if (isVideo) {
            commond.add("-vcodec");
            commond.add("libx264");
            commond.add("-mbd");
            commond.add("0");
            commond.add("-c:a");
            commond.add("aac");
            commond.add("-s");
            commond.add("720*720");
            commond.add("-threads");  //指定同时启动线程执行数, 经测试到10再大速度几无变化
            commond.add("25");
            commond.add("-preset");
            commond.add("ultrafast");
            commond.add("-strict");
            commond.add("-2");
            commond.add("-pix_fmt");
            commond.add("yuv420p");
            commond.add("-movflags");
            commond.add("faststart");
        }
        commond.add(fileOutPut.getAbsolutePath());
        //执行命令
        executeCommand(commond);
    }

    /**
     * 执行FFmpeg命令
     * @param commonds 要执行的FFmpeg命令
     * @return FFmpeg程序在执行命令过程中产生的各信息,执行出错时返回null
     */
    public static String executeCommand(List<String> commonds) {
        if (CollectionUtils.isEmpty(commonds)) {
            System.out.println("--- 指令执行失败,因为要执行的FFmpeg指令为空! ---");
            return null;
        }
        LinkedList<String> ffmpegCmds = new LinkedList<>(commonds);
        ffmpegCmds.addFirst(FFMPEG_PATH); // 设置ffmpeg程序所在路径
        System.out.println("--- 待执行的FFmpeg指令为:---" + ffmpegCmds);

        Runtime runtime = Runtime.getRuntime();
        Process ffmpeg = null;
        try {
            // 执行ffmpeg指令
            ProcessBuilder builder = new ProcessBuilder("/bin/sh", "-c");
            builder.command(ffmpegCmds);
            ffmpeg = builder.start();
            System.out.println("--- 开始执行FFmpeg指令:--- 执行线程名:" + builder.toString());

            // 取出输出流和错误流的信息
            // 注意:必须要取出ffmpeg在执行命令过程中产生的输出信息,如果不取的话当输出流信息填满jvm存储输出留信息的缓冲区时,线程就回阻塞住
            PrintStream errorStream = new PrintStream(ffmpeg.getErrorStream());
            PrintStream inputStream = new PrintStream(ffmpeg.getInputStream());
            errorStream.start();
            inputStream.start();
            // 等待ffmpeg命令执行完
            ffmpeg.waitFor();

            // 获取执行结果字符串
            String result = errorStream.stringBuffer.append(inputStream.stringBuffer).toString();

            // 输出执行的命令信息
            String cmdStr = Arrays.toString(ffmpegCmds.toArray()).replace(",", "");
            String resultStr = StringUtils.isBlank(result) ? "【异常】" : "正常";
            System.out.println("--- 已执行的FFmepg命令: ---" + cmdStr + " 已执行完毕,执行结果: " + resultStr);
            return result;

        } catch (Exception e) {
            System.out.println("--- FFmpeg命令执行出错! --- 出错信息: " + e.getMessage());
            return null;

        } finally {
            if (null != ffmpeg) {
                ProcessKiller ffmpegKiller = new ProcessKiller(ffmpeg);
                // JVM退出时,先通过钩子关闭FFmepg进程
                runtime.addShutdownHook(ffmpegKiller);
            }
        }
    }

    /**
     * 用于取出ffmpeg线程执行过程中产生的各种输出和错误流的信息
     */
    static class PrintStream extends Thread {

        InputStream inputStream = null;
        BufferedReader bufferedReader = null;
        StringBuffer stringBuffer = new StringBuffer();

        public PrintStream(InputStream inputStream) {
            this.inputStream = inputStream;
        }

        @Override
        public void run() {
            try {
                if (null == inputStream) {
                    System.out.println("--- 读取输出流出错!因为当前输出流为空!---");
                }
                bufferedReader = new BufferedReader(new InputStreamReader(inputStream));
                String line = null;
                while ((line = bufferedReader.readLine()) != null) {
                    System.out.println(line);
                    stringBuffer.append(line);
                }
            } catch (Exception e) {
                System.out.println("--- 读取输入流出错了!--- 错误信息:" + e.getMessage());
            } finally {
                try {
                    if (null != bufferedReader) {
                        bufferedReader.close();
                    }
                    if (null != inputStream) {
                        inputStream.close();
                    }
                } catch (IOException e) {
                    System.out.println("--- 调用PrintStream读取输出流后,关闭流时出错!---");
                }
            }
        }
    }

    /**
     * 在程序退出前结束已有的FFmpeg进程
     */
    private static class ProcessKiller extends Thread {

        private Process process;

        public ProcessKiller(Process process) {
            this.process = process;
        }

        @Override
        public void run() {
            this.process.destroy();
            System.out.println("--- 已销毁FFmpeg进程 --- 进程名: " + process.toString());
        }
    }



    /**
     * 获取音频基本信息
     *
     * @param path 文件路径|URL
     * @throws EncoderException
     */
    public static MultimediaInfo testMediaInfo(String path) throws EncoderException, MalformedURLException {
        MultimediaObject instance;
        if (path.startsWith("http")) {
            instance = new MultimediaObject(new URL(path));
        } else {
            instance = new MultimediaObject(new File(path));
        }
        return instance.getInfo();
    }
    /**
     * 原生调用ffmpeg获取音频基本信息
     *
     * @param urlPath
     */
    public static void testFFmpeg(String urlPath) {
        ProcessLocator processLocator = new DefaultFFMPEGLocator();
        ProcessWrapper ffmpeg = processLocator.createExecutor();
        ffmpeg.addArgument("-i");
        ffmpeg.addArgument(urlPath);
        try {
            ffmpeg.execute();
            String res = IOUtils.toString(ffmpeg.getErrorStream(), "UTF-8");
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            ffmpeg.destroy();
        }
    }

    /**
     * 转成Mp4
     *
     * @param sourceFile
     * @param distFile
     * @param pListener
     * @throws EncoderException
     */
    public static void codecToMp4(String sourceFile, String distFile, EncoderProgressListener pListener) throws EncoderException {
        File source = new File(sourceFile);
        File target = new File(distFile);
        if (target.exists()) {
            target.delete();
        }
        AudioAttributes audioAttr = new AudioAttributes();
        VideoAttributes videoAttr = new VideoAttributes();
        EncodingAttributes encodingAttr = new EncodingAttributes();
        audioAttr.setChannels(2);
        audioAttr.setCodec("aac");
        audioAttr.setBitRate(128000);
        audioAttr.setSamplingRate(44100);
        videoAttr.setCodec("libx264");
        videoAttr.setBitRate(2 * 1024 * 1024);
        videoAttr.setSize(new VideoSize(1080, 720));
        videoAttr.setFaststart(true);
        videoAttr.setFrameRate(29);
        encodingAttr.setAudioAttributes(audioAttr);
        encodingAttr.setVideoAttributes(videoAttr);
        encodingAttr.setOutputFormat("mp4");
        Encoder encoder = new Encoder();
        encoder.encode(new MultimediaObject(source), target, encodingAttr, pListener);
    }


    /**
     * 添加文字水印
     *
     * @param sourceFile
     * @param distFile
     * @param textWaterMark
     * @param pListener
     * @throws EncoderException
     */
    public static void codecToMp4WithText(String sourceFile, String distFile, String textWaterMark, EncoderProgressListener pListener) throws EncoderException {
        File sourceVideo = new File(sourceFile);
        File target = new File(distFile);
        if (target.exists()) {
            target.delete();
        }
        DrawtextFilter vf = new DrawtextFilter(textWaterMark, "(w-text_w)/2", "(h-text_h)/2", "宋体", 30.0, new Color("ffffff", "44"));
        vf.setShadow(new Color("000000", "44"), 2, 2);
        VideoAttributes videoAttributes = new VideoAttributes();
        videoAttributes.addFilter(vf);
        EncodingAttributes attrs = new EncodingAttributes();
        attrs.setVideoAttributes(videoAttributes);
        Encoder encoder = new Encoder();
        encoder.encode(new MultimediaObject(sourceVideo), target, attrs, pListener);
    }

//
    public static void main(String[] args) throws EncoderException, MalformedURLException {
        String videoPath = "D:\\usr\\local\\tobaccocasedoc\\Download\\test(0).mp4";
        String wavPath = "D:\\usr\\local\\tobaccocasedoc\\Download\\test(0).mp4";
        String mp3Path = "D:\\usr\\local\\tobaccocasedoc\\Download\\result.mp4";
        //测试获取视频信息
        MultimediaInfo info = testMediaInfo(videoPath);
        System.out.println(JSON.toJSONString(info));
        //测试音频转码
        codecToMp4(wavPath, mp3Path, new EncoderProgressListener() {
            @Override
            public void sourceInfo(MultimediaInfo info) {
                System.out.println(JSON.toJSONString(info));
            }
            @Override
            public void progress(int permil) {
                System.out.println(permil);
            }
            @Override
            public void message(String message) {
                System.out.println(message);
            }
        });

    }

(注: 因为官方的sdk不定时更新,一些接口参数也可能发生改变 大家可以根据返回的错误码判断错误信息 这篇文章仅供大家参考,如需要和我版本一致的sdk,源码下载类替换就好啦)

源码地址:(晚点上传)

对应的jar和maven需要大佬们自己去找找了

大佬勿喷!!!!!!!!!!!!!!!!!!!!! 写这个博客只是希望可以帮到大家

原文地址:https://blog.csdn.net/qq_46380138/article/details/126634069

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