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文章来源:https://uudwc.com/A/MPxw