Merge remote-tracking branch 'origin/dev' into dev

aijinhui

2024-04-15 dae6e068207ad1bff32dafd8c71f12d8a2a59aa2

 ard-work/src/main/java/com/ruoyi/utils/sdk/hiksdk/service/impl/HikvisionSDK.java

@@ -32,9 +32,12 @@
import org.springframework.stereotype.Service;

import javax.annotation.Resource;
import javax.servlet.http.HttpServletResponse;
import java.io.*;
import java.math.BigDecimal;
import java.nio.ByteBuffer;
import java.nio.file.Files;
import java.nio.file.Paths;
import java.text.DecimalFormat;
import java.util.*;
import java.util.concurrent.PriorityBlockingQueue;
@@ -73,116 +76,7 @@
     * @修改人和其它信息
     */
    @Override
    public boolean login(ArdCameras camera) {
        try {
            // 初始化
            if (!hCNetSDK.NET_DVR_Init()) {
                log.error("SDK初始化失败");
            }
            //打印海康sdk日志
            if (Platform.isWindows()) {
                String WIN_PATH = System.getProperty("user.dir") + File.separator + "ardLog" + File.separator + "logs" + File.separator;
                hCNetSDK.NET_DVR_SetLogToFile(3, WIN_PATH, true);
            } else {
                hCNetSDK.NET_DVR_SetLogToFile(3, "/home/ardLog/hiklog", true);
            }
            String m_sDeviceIP = camera.getIp();
            String m_sUsername = camera.getUsername();
            String m_sPassword = camera.getPassword();
            short m_sPort = camera.getPort().shortValue();
            //设置连接时间与重连时间
            hCNetSDK.NET_DVR_SetConnectTime(2000, 1);
            hCNetSDK.NET_DVR_SetReconnect(5000, true);
            //设备信息, 输出参数
            HCNetSDK.NET_DVR_DEVICEINFO_V40 m_strDeviceInfo = new HCNetSDK.NET_DVR_DEVICEINFO_V40();
            HCNetSDK.NET_DVR_USER_LOGIN_INFO m_strLoginInfo = new HCNetSDK.NET_DVR_USER_LOGIN_INFO();

            // 注册设备-登录参数，包括设备地址、登录用户、密码等
            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());
            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());
            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 = m_sPort;
            m_strLoginInfo.byVerifyMode = 0;
            m_strLoginInfo.byLoginMode = 0;
            //是否异步登录：0- 否，1- 是  windowsSDK里是true和false
            m_strLoginInfo.bUseAsynLogin = false;
            m_strLoginInfo.write();
            //同步登录
            int lUserID = hCNetSDK.NET_DVR_Login_V40(m_strLoginInfo, m_strDeviceInfo);
            if (lUserID < 0) {
                log.debug("Login Failed [ " + camera.getIp() + ":" + camera.getPort() + " ],错误码：" + hCNetSDK.NET_DVR_GetLastError());
                camera.setChanNum(0);
                camera.setLoginId(-1);
                camera.setState("0");
                //删除管理通道
                ardChannelService.deleteArdChannelByDeviceId(camera.getId());
                ardCamerasService.updateArdCameras(camera);
                return false;
            }

            log.debug("Login Success [ " + camera.getIp() + ":" + camera.getPort() + " ]");
            if (fExceptionCallBack == null) {
                fExceptionCallBack = new ExceptionCallBack();//异常回调
                //设置异常回调函数(可在回调函数中获取设备上下线状态等)
                if (!hCNetSDK.NET_DVR_SetExceptionCallBack_V30(0, 0, fExceptionCallBack, null)) {
                    log.debug("Set fExceptionCallBack function fail");
                    return false;
                } else {
                    log.debug("Set fExceptionCallBack function successfully!");
                }
            }

            if (GlobalVariable.loginMap.containsKey(camera.getId())) {
                GlobalVariable.loginMap.remove(camera.getId());
            }

            //删除管理通道
            ardChannelService.deleteArdChannelByDeviceId(camera.getId());
            GlobalVariable.loginMap.put(camera.getId(), lUserID);
            GlobalVariable.loginCameraMap.put(lUserID, camera);

            camera.setLoginId(lUserID);
            camera.setState("1");
            camera.setChanNum((int) m_strDeviceInfo.struDeviceV30.byChanNum);
            camera.setStartDChan((int) m_strDeviceInfo.struDeviceV30.byStartDChan);
            //获取最新通道
            List<ArdChannel> cameraChannelList = getIPChannelInfo(camera);
            if (cameraChannelList.size() > 0) {
                camera.setChannelList(cameraChannelList);
                for (ArdChannel channel : cameraChannelList) {
                    channel.setId(IdUtils.simpleUUID());
                    ardChannelService.insertArdChannel(channel);
                }
                //添加到流媒体
                addVtdu(camera);
            }
            //创建引导队列
            if (!GuidePriorityQueue.cameraQueueMap.containsKey(camera.getId())) {
                Comparator<GuideTask> comparator = GuidePriorityQueue.getComparator();
                PriorityBlockingQueue<GuideTask> priorityQueue = new PriorityBlockingQueue<>(1000, comparator);
                GuidePriorityQueue.cameraQueueMap.put(camera.getId(), priorityQueue);
            }
            ardCamerasService.updateArdCameras(camera);
        } catch (Exception ex) {
            log.error("注册设备异常", ex);
        }
        return true;
    }

    /**
     * @描述 注册登录 集成于NET_DVR_Login_V30，支持同步和异步登录
     * @参数 [dvrLogin]
     * @返回值 java.lang.Integer
     * @创建人 刘苏义
     * @创建时间 2023/1/17 16:12
     * @修改人和其它信息
     */
    @Override
    @Async("loginExecutor")
    public void asyncLogin(ArdCameras camera) {
    public AjaxResult login(ArdCameras camera) {
        try {
            // 初始化
            if (!hCNetSDK.NET_DVR_Init()) {
@@ -223,18 +117,126 @@
            int lUserID = hCNetSDK.NET_DVR_Login_V40(m_strLoginInfo, m_strDeviceInfo);
            if (lUserID < 0) {
                int errorCode = hCNetSDK.NET_DVR_GetLastError();
                log.debug("Login Failed 【 " + camera.getIp() + ":" + camera.getPort() + " 】," +
                        "Error Code:" + errorCode + " " +
                        "Error Info:" + SdkErrorCodeEnum.getDescByCode(errorCode));
                camera.setChanNum(0);
                camera.setLoginId(-1);
                camera.setState("0");
                //删除管理通道
                ardChannelService.deleteArdChannelByDeviceId(camera.getId());
                ardCamerasService.updateArdCameras(camera);
                return;
                log.error("设备[" + camera.getIp() + ":" + camera.getPort() + "]登录失败: errorCode:" + errorCode + " errorInfo:" + SdkErrorCodeEnum.getDescByCode(errorCode));
                return AjaxResult.error("设备登录失败: errorCode:" + errorCode + " errorInfo:" + SdkErrorCodeEnum.getDescByCode(errorCode));
            }

            log.debug("Login Success [ " + camera.getIp() + ":" + camera.getPort() + " ]");
            if (fExceptionCallBack == null) {
                fExceptionCallBack = new ExceptionCallBack();//异常回调
                //设置异常回调函数(可在回调函数中获取设备上下线状态等)
                if (!hCNetSDK.NET_DVR_SetExceptionCallBack_V30(0, 0, fExceptionCallBack, null)) {
                    log.debug("Set fExceptionCallBack function fail");
                } else {
                    log.debug("Set fExceptionCallBack function successfully!");
                }
            }

            if (GlobalVariable.loginMap.containsKey(camera.getId())) {
                GlobalVariable.loginMap.remove(camera.getId());
            }

            //删除管理通道
            ardChannelService.deleteArdChannelByDeviceId(camera.getId());
            GlobalVariable.loginMap.put(camera.getId(), lUserID);
            GlobalVariable.loginCameraMap.put(lUserID, camera);

            camera.setLoginId(lUserID);
            camera.setState("1");
            camera.setChanNum((int) m_strDeviceInfo.struDeviceV30.byChanNum);
            camera.setStartDChan((int) m_strDeviceInfo.struDeviceV30.byStartDChan);
            //获取最新通道
            List<ArdChannel> cameraChannelList = getIPChannelInfo(camera);
            if (cameraChannelList.size() > 0) {
                camera.setChannelList(cameraChannelList);
                for (ArdChannel channel : cameraChannelList) {
                    channel.setId(IdUtils.simpleUUID());
                    ardChannelService.insertArdChannel(channel);
                }
                //添加到流媒体
                addVtdu(camera);
            }
            //创建引导队列
            if (!GuidePriorityQueue.cameraQueueMap.containsKey(camera.getId())) {
                Comparator<GuideTask> comparator = GuidePriorityQueue.getComparator();
                PriorityBlockingQueue<GuideTask> priorityQueue = new PriorityBlockingQueue<>(1000, comparator);
                GuidePriorityQueue.cameraQueueMap.put(camera.getId(), priorityQueue);
            }
            ardCamerasService.updateArdCameras(camera);
            return AjaxResult.success("设备登录成功");
        } catch (Exception ex) {
            log.error("设备登录异常", ex);
            return AjaxResult.error("设备登录异常" + ex.getMessage());
        }
    }

    /**
     * @描述 注册登录 集成于NET_DVR_Login_V30，支持同步和异步登录
     * @参数 [dvrLogin]
     * @返回值 java.lang.Integer
     * @创建人 刘苏义
     * @创建时间 2023/1/17 16:12
     * @修改人和其它信息
     */
    @Override
    @Async("loginExecutor")
    public AjaxResult asyncLogin(ArdCameras camera) {
        try {
            // 初始化
            if (!hCNetSDK.NET_DVR_Init()) {
                log.error("SDK初始化失败");
                return AjaxResult.error("SDK初始化失败");
            }
            //打印海康sdk日志
            if (Platform.isWindows()) {
                String WIN_PATH = System.getProperty("user.dir") + File.separator + "ardLog" + File.separator + "logs" + File.separator;
                hCNetSDK.NET_DVR_SetLogToFile(3, WIN_PATH, true);
            } else {
                hCNetSDK.NET_DVR_SetLogToFile(3, "/home/ardLog/hiklog", true);
            }
            String m_sDeviceIP = camera.getIp();
            String m_sUsername = camera.getUsername();
            String m_sPassword = camera.getPassword();
            short m_sPort = camera.getPort().shortValue();
            //设置连接时间与重连时间
            hCNetSDK.NET_DVR_SetConnectTime(2000, 1);
            hCNetSDK.NET_DVR_SetReconnect(5000, true);
            //设备信息, 输出参数
            HCNetSDK.NET_DVR_DEVICEINFO_V40 m_strDeviceInfo = new HCNetSDK.NET_DVR_DEVICEINFO_V40();
            HCNetSDK.NET_DVR_USER_LOGIN_INFO m_strLoginInfo = new HCNetSDK.NET_DVR_USER_LOGIN_INFO();

            // 注册设备-登录参数，包括设备地址、登录用户、密码等
            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());
            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());
            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 = m_sPort;
            m_strLoginInfo.byVerifyMode = 0;
            m_strLoginInfo.byLoginMode = 0;
            //是否异步登录：0- 否，1- 是  windowsSDK里是true和false
            m_strLoginInfo.bUseAsynLogin = false;
            m_strLoginInfo.write();
            //同步登录
            int lUserID = hCNetSDK.NET_DVR_Login_V40(m_strLoginInfo, m_strDeviceInfo);
            if (lUserID < 0) {
                int errorCode = hCNetSDK.NET_DVR_GetLastError();
                camera.setChanNum(0);
                camera.setLoginId(-1);
                camera.setState("0");
                //删除管理通道
                ardChannelService.deleteArdChannelByDeviceId(camera.getId());
                ardCamerasService.updateArdCameras(camera);
                log.error("设备[" + camera.getIp() + ":" + camera.getPort() + "]登录失败: errorCode:" + errorCode + " errorInfo:" + SdkErrorCodeEnum.getDescByCode(errorCode));
                return AjaxResult.error("设备登录失败: errorCode:" + errorCode + " errorInfo:" + SdkErrorCodeEnum.getDescByCode(errorCode));
            }
            log.debug("Login Success 【 " + camera.getIp() + ":" + camera.getPort() + " 】");
            synchronized (_lock) {
                if (fExceptionCallBack == null) {
@@ -242,7 +244,6 @@
                    //设置异常回调函数(可在回调函数中获取设备上下线状态等)
                    if (!hCNetSDK.NET_DVR_SetExceptionCallBack_V30(0, 0, fExceptionCallBack, null)) {
                        log.debug("Set fExceptionCallBack function fail");
                        return;
                    } else {
                        log.debug("Set fExceptionCallBack function successfully!");
                    }
@@ -277,23 +278,21 @@
            addVtdu(camera);
            //创建引导队列
            createGuideQueue(camera);
            return AjaxResult.success("设备登录成功");
        } catch (Exception ex) {
            log.error("注册设备异常", ex);
            return AjaxResult.error("注册设备异常" + ex.getMessage());
        }
    }

    //创建引导队列
    private void createGuideQueue(ArdCameras camera) {
        if (camera.getCamAlarmGuideEnable() != null) {
            if (camera.getCamAlarmGuideEnable() == 1) {
                if (!GuidePriorityQueue.cameraQueueMap.containsKey(camera.getId())) {
                    Comparator<GuideTask> comparator = GuidePriorityQueue.getComparator();
                    PriorityBlockingQueue<GuideTask> priorityQueue = new PriorityBlockingQueue<>(1000, comparator);
                    GuidePriorityQueue.cameraQueueMap.put(camera.getId(), priorityQueue);
                    //启动队列处理器
                    queueHandler.process(camera.getId());
                }
            }
        if (!GuidePriorityQueue.cameraQueueMap.containsKey(camera.getId())) {
            Comparator<GuideTask> comparator = GuidePriorityQueue.getComparator();
            PriorityBlockingQueue<GuideTask> priorityQueue = new PriorityBlockingQueue<>(1000, comparator);
            GuidePriorityQueue.cameraQueueMap.put(camera.getId(), priorityQueue);
            //启动队列处理器
            queueHandler.process(camera.getId());
        }
    }

@@ -1497,38 +1496,45 @@
     *
     * @param cmd 相机命令
     */
    public AjaxResult captureJPEGPicture(CameraCmd cmd) {
        String cameraId = cmd.getCameraId();
        Integer channelNum = cmd.getChanNo();
        if (!GlobalVariable.loginMap.containsKey(cameraId)) {
            return AjaxResult.error("设备未登录");
    @Override
    public AjaxResult localCapture(CameraCmd cmd) {
        try {
            String cameraId = cmd.getCameraId();
            Integer channelNum = cmd.getChanNo();
            if (!GlobalVariable.loginMap.containsKey(cameraId)) {
                return AjaxResult.error("设备未登录");
            }
            Integer userId = (Integer) GlobalVariable.loginMap.get(cameraId);
            NET_DVR_WORKSTATE_V30 devwork = new NET_DVR_WORKSTATE_V30();
            if (!hCNetSDK.NET_DVR_GetDVRWorkState_V30(userId, devwork)) {
                int code = hCNetSDK.NET_DVR_GetLastError();
                log.error("获取设备工作状态失败: errorCode" + code + " errorInfo" + SdkErrorCodeEnum.getDescByCode(code));
                return AjaxResult.error("获取设备工作状态失败: errorCode" + code + " errorInfo" + SdkErrorCodeEnum.getDescByCode(code));
            }
            //图片质量
            NET_DVR_JPEGPARA jpeg = new NET_DVR_JPEGPARA();
            //设置图片分辨率
            jpeg.wPicSize = 0;
            //设置图片质量
            jpeg.wPicQuality = 0;
            IntByReference a = new IntByReference();
            //设置图片大小
            ByteBuffer jpegBuffer = ByteBuffer.allocate(1024 * 1024);
            // 抓图到内存，单帧数据捕获并保存成JPEG存放在指定的内存空间中
            boolean is = hCNetSDK.NET_DVR_CaptureJPEGPicture_NEW(userId, channelNum, jpeg, jpegBuffer, 1024 * 1024, a);
            //log.debug("-----------这里开始图片存入内存----------" + is);
           // OutputStream outputStream = response.getOutputStream();
            //outputStream.write(jpegBuffer.array());
            //Base64.Encoder decoder = Base64.getEncoder();
            //  BASE64Encoder encoder = new BASE64Encoder();
            //String png_base64 = decoder.encodeToString(jpegBuffer.array());//转换成base64串
            // png_base64 = png_base64.replaceAll("\n", "").replaceAll("\r", "");//删除 \r\n
            //log.debug("-----------处理完成截图数据----------");
            return AjaxResult.success(jpegBuffer.array());
        } catch (Exception ex) {
            log.error("-----------截图失败----------");
            return AjaxResult.error(ex.getMessage());
        }
        Integer userId = (Integer) GlobalVariable.loginMap.get(cameraId);
        NET_DVR_WORKSTATE_V30 devwork = new NET_DVR_WORKSTATE_V30();
        if (!hCNetSDK.NET_DVR_GetDVRWorkState_V30(userId, devwork)) {
            int code = hCNetSDK.NET_DVR_GetLastError();
            log.error("获取设备工作状态失败: errorCode" + code + " errorInfo" + SdkErrorCodeEnum.getDescByCode(code));
            return AjaxResult.error("获取设备工作状态失败: errorCode" + code + " errorInfo" + SdkErrorCodeEnum.getDescByCode(code));
        }
        //图片质量
        NET_DVR_JPEGPARA jpeg = new NET_DVR_JPEGPARA();
        //设置图片分辨率
        jpeg.wPicSize = 0;
        //设置图片质量
        jpeg.wPicQuality = 0;
        IntByReference a = new IntByReference();
        //设置图片大小
        ByteBuffer jpegBuffer = ByteBuffer.allocate(1024 * 1024);
        // 抓图到内存，单帧数据捕获并保存成JPEG存放在指定的内存空间中
        boolean is = hCNetSDK.NET_DVR_CaptureJPEGPicture_NEW(userId, channelNum, jpeg, jpegBuffer, 1024 * 1024, a);
        log.debug("-----------这里开始图片存入内存----------" + is);

        Base64.Encoder decoder = Base64.getEncoder();
        //  BASE64Encoder encoder = new BASE64Encoder();
        String png_base64 = decoder.encodeToString(jpegBuffer.array());//转换成base64串
        png_base64 = png_base64.replaceAll("\n", "").replaceAll("\r", "");//删除 \r\n
        log.debug("-----------处理完成截图数据----------");
        return AjaxResult.success(png_base64);
    }

    /**
@@ -1917,14 +1923,122 @@
            log.error("获取GIS信息数据失败: errorCode:" + code + " errorInfo:" + SdkErrorCodeEnum.getDescByCode(code));
            return AjaxResult.error("获取GIS信息数据失败: errorCode:" + code + " errorInfo:" + SdkErrorCodeEnum.getDescByCode(code));
        }
            struGisInfo.read();
            Map<String, Object> map = new HashMap<>();
            map.put("p", struGisInfo.struPtzPos.fPanPos);
            map.put("t", struGisInfo.struPtzPos.fTiltPos < 0 ? struGisInfo.struPtzPos.fTiltPos + 360 : struGisInfo.struPtzPos.fTiltPos);
            map.put("z", struGisInfo.struPtzPos.fZoomPos);
            map.put("fHorFieldAngle", struGisInfo.fHorizontalValue);// 水平视场角
            map.put("fVerFieldAngle", struGisInfo.fVerticalValue);// 垂直视场角
            return AjaxResult.success(map);
        struGisInfo.read();
        Map<String, Object> map = new HashMap<>();
        map.put("p", struGisInfo.struPtzPos.fPanPos);
        map.put("t", struGisInfo.struPtzPos.fTiltPos < 0 ? struGisInfo.struPtzPos.fTiltPos + 360 : struGisInfo.struPtzPos.fTiltPos);
        map.put("z", struGisInfo.struPtzPos.fZoomPos);
        map.put("fHorFieldAngle", struGisInfo.fHorizontalValue);// 水平视场角
        map.put("fVerFieldAngle", struGisInfo.fVerticalValue);// 垂直视场角
        return AjaxResult.success(map);

    }

    //本地录像开始
    @Override
    public AjaxResult localRecordStart(CameraCmd cmd) {
        try {
            String cameraId = cmd.getCameraId();
            Integer channelNum = cmd.getChanNo();
            String path = FileUtils.createFile("D:/LocalRecordTemp/" + cameraId + ".mp4");
            if (!GlobalVariable.loginMap.containsKey(cameraId)) {
                return AjaxResult.error("设备未登录");
            }
            Integer userId = (Integer) GlobalVariable.loginMap.get(cameraId);
            //强制I帧结构体对象
            HCNetSDK.NET_DVR_I_FRAME netDvrIFrame = new HCNetSDK.NET_DVR_I_FRAME();   //新建结构体对象
            netDvrIFrame.read();
            netDvrIFrame.dwChannel = channelNum;//因为上文代码中设置了通道号，按照上文中的设置
            netDvrIFrame.byStreamType = 0;
            netDvrIFrame.dwSize = netDvrIFrame.size();
            netDvrIFrame.write();
            if (!hCNetSDK.NET_DVR_RemoteControl(userId, 3402, netDvrIFrame.getPointer(), netDvrIFrame.dwSize)) {
                log.error("强制I帧 错误码为:  " + hCNetSDK.NET_DVR_GetLastError());
            }
            //预览参数
            NET_DVR_PREVIEWINFO previewinfo = new NET_DVR_PREVIEWINFO();
            previewinfo.read();
            previewinfo.lChannel = channelNum;
            previewinfo.dwStreamType = 0;//码流类型：0-主码流，1-子码流，2-三码流，3-虚拟码流，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-RTP/HTTP，6-HRUDP（可靠传输），7-RTSP/HTTPS，8-NPQ
            previewinfo.hPlayWnd = null;//播放窗口的句柄，为NULL表示不解码显示。
            previewinfo.bBlocked = 0;//0- 非阻塞取流，1-阻塞取流
            previewinfo.byNPQMode = 0;//NPQ模式：0-直连模式，1-过流媒体模式
            previewinfo.write();
            if (GlobalVariable.previewMap.containsKey(cameraId)) {
                Integer lRealHandle = GlobalVariable.previewMap.get(cameraId);
                hCNetSDK.NET_DVR_StopRealPlay(lRealHandle);
                GlobalVariable.previewMap.remove(cameraId);
                log.debug("停止当前录像");
            }
            int lRealHandle = hCNetSDK.NET_DVR_RealPlay_V40(userId, previewinfo, null, null);
            if (lRealHandle == -1) {
                int code = hCNetSDK.NET_DVR_GetLastError();
                log.error("本地录像取流失败" + hCNetSDK.NET_DVR_GetLastError());
                return AjaxResult.error("本地录像取流失败: errorCode:" + code + " errorInfo:" + SdkErrorCodeEnum.getDescByCode(code));
            }
            log.debug("本地录像取流成功");
            GlobalVariable.threadMap.put(cameraId, Thread.currentThread().getName());
            GlobalVariable.previewMap.put(cameraId, lRealHandle);
            if (!hCNetSDK.NET_DVR_SaveRealData_V30(GlobalVariable.previewMap.get(cameraId), 2, path)) {
                int code = hCNetSDK.NET_DVR_GetLastError();
                log.error("保存视频文件到临时文件夹失败 错误码为:  " + hCNetSDK.NET_DVR_GetLastError());
                return AjaxResult.error("本地录像取流失败: errorCode:" + code + " errorInfo:" + SdkErrorCodeEnum.getDescByCode(code));
            }
            log.debug("本地录像开始");
            return AjaxResult.success("录像开始,录像ID:" + lRealHandle);
        } catch (Exception ex) {
            log.error("本地录像开始异常" + ex.getMessage());
            return AjaxResult.error("本地录像开始异常" + ex.getMessage());
        }
    }

    //本地录像停止
    @Override
    public AjaxResult localRecordStop(CameraCmd cmd) {
        try {
            String cameraId = cmd.getCameraId();
            Integer channelNum = cmd.getChanNo();
            String recordPath = FileUtils.createFile("D:/LocalRecordTemp/" + cameraId + ".mp4");
            if (!GlobalVariable.loginMap.containsKey(cameraId)) {
                return AjaxResult.error("设备未登录");
            }
            Integer userId = (Integer) GlobalVariable.loginMap.get(cameraId);
            //region 强制I帧
            HCNetSDK.NET_DVR_I_FRAME netDvrIFrame = new HCNetSDK.NET_DVR_I_FRAME();   //新建结构体对象
            netDvrIFrame.read();
            netDvrIFrame.dwChannel = channelNum;//因为上文代码中设置了通道号，按照上文中的设置
            netDvrIFrame.byStreamType = 0;
            netDvrIFrame.dwSize = netDvrIFrame.size();
            netDvrIFrame.write();
            if (!hCNetSDK.NET_DVR_RemoteControl(userId, 3402, netDvrIFrame.getPointer(), netDvrIFrame.dwSize)) {
                log.error("强制I帧 错误码为:  " + hCNetSDK.NET_DVR_GetLastError());
            }
            //endregion
            //region 预览参数
            NET_DVR_PREVIEWINFO previewinfo = new NET_DVR_PREVIEWINFO();
            previewinfo.read();
            previewinfo.lChannel = channelNum;
            previewinfo.dwStreamType = 0;//码流类型：0-主码流，1-子码流，2-三码流，3-虚拟码流，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-RTP/HTTP，6-HRUDP（可靠传输），7-RTSP/HTTPS，8-NPQ
            previewinfo.hPlayWnd = null;//播放窗口的句柄，为NULL表示不解码显示。
            previewinfo.bBlocked = 0;//0- 非阻塞取流，1-阻塞取流
            previewinfo.byNPQMode = 0;//NPQ模式：0-直连模式，1-过流媒体模式
            previewinfo.write();
            //endregion
            if (GlobalVariable.previewMap.containsKey(cameraId)) {
                Integer lRealHandle = GlobalVariable.previewMap.get(cameraId);
                hCNetSDK.NET_DVR_StopRealPlay(lRealHandle);
                GlobalVariable.previewMap.remove(cameraId);
            }
            log.debug("本地录像停止");
            byte[] recordBytes = Files.readAllBytes(Paths.get(recordPath));
            //OutputStream outputStream = response.getOutputStream();
            //outputStream.write(imageBytes);
            return AjaxResult.success(recordBytes);
        } catch (Exception ex) {
            log.error("本地录像停止异常" + ex.getMessage());
            return AjaxResult.error("本地录像停止异常" +ex.getMessage());
        }
    }
}