基于superSocket——AForge的UDP传输摄像案例——服务端
服务端
业务逻辑：
这里打个比方，有个陌生人（摄像客户端）一直在敲你家的门，但是你没开，等到你爸（Web客户端）给你一个命令开门，你就把门打开，让陌生人进来，并进行核对信息（信息匹配），原来是隔壁老王，给你带了好吃的（UDP数据），你于是就把吃的留下来了。
准备操作：
用superSocket接受客户端发来的UDP数据，
superSocket开源框架网址：https://github.com/kerryjiang/SuperSocket。
在NuGet中添加：SuperSocket,SuperSocket.Engine,SuperSocket.ProtoBase
用FFMPEG、VFW进行录入视频。
①.新建UdpTestSession继承AppSession，用于建立会话；
using SuperSocket.SocketBase;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using SuperSocket.SocketBase.Protocol;
namespace Receive.udp
{
public class UdpTestSession : AppSession
{
protected override void OnSessionClosed(CloseReason reason)
{
base.OnSessionClosed(reason);
}
protected override void OnSessionStarted()
{
Console.WriteLine("start Session");
base.OnSessionStarted();
}
protected override void HandleUnknownRequest(MyUdpRequestInfo requestInfo)
{
Console.WriteLine("unKnownRequest");
base.HandleUnknownRequest(requestInfo);
}
}
}
**②**.新建MyUdpRequestInfo,用于封装会话信息与传输的数据信息。
using Receive.udp;
using SuperSocket.ProtoBase;
using SuperSocket.SocketBase.Protocol;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace Receive.udp
{
public class MyUdpRequestInfo : UdpRequestInfo, IPackageInfo
{
public MyUdpRequestInfo(string key, string sessionID)
: base(key, sessionID)
{
}
public byte[] Body { get; set; }
}
}
③.新建MyReceiveFilter，用于处理（过滤）传输的数据，封装成MyUdpRequestInfo。其中这步中，我将客户端分为web客户端与摄像设备客户端，web 发送的数据类型 密钥+设备号+录像时间+结束标志，录像设备发送的数据 密钥+设备号+照片+结束标志。
其中密钥与设备号可以设置固定长度，不足补休止符。（见下辅助类）
using System.Linq;
namespace Receive.udp
{
public class MyReceiveFilter : SuperSocket.SocketBase.Protocol.IReceiveFilter
{
public int LeftBufferSize
{
get { return 0; }
}
public SuperSocket.SocketBase.Protocol.IReceiveFilter NextReceiveFilter
{
get { return this; }
}
public SuperSocket.SocketBase.Protocol.FilterState State
{
get; private set;
}
/// ④.新建UdpAppServer,集中处理传递的数据，根据不同的客户端请求，进行不一样的操作。web设备的请求则开启摄像，摄像设备则进行视频的录入。
using SuperSocket.SocketBase;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using SuperSocket.SocketBase.Config;
using SuperSocket.SocketBase.Protocol;
using SuperSocket.ProtoBase;
using SuperSocket.SocketBase.Logging;
using System.Collections.Concurrent;
using log4net;
using System.IO;
using System.Drawing;
namespace Receive.udp
{
class UdpAppServer : AppServer
{
public static readonly log4net.ILog LOG = log4net.LogManager.GetLogger("VideoSocket");
public static readonly string PATH = "D:\\ReadVersionD\\video";
public static Dictionary<string, string> PRIVATE_KEY = new Dictionary<string, string>(); //deviceCode->key
public static readonly int MIN_IMG_SIZE = 100;
public UdpAppServer()
: base(new DefaultReceiveFilterFactory())
{
}
public static ConcurrentDictionary<string, VideoPackageModel> FILE_WRITERS = new ConcurrentDictionary<string, VideoPackageModel>(); //读取文件
protected override void OnSystemMessageReceived(string messageType, object messageData)
{
Console.WriteLine(messageType);
base.OnSystemMessageReceived(messageType, messageData);
}
/// 辅助类——VideoPackageModel：用于封装Video数据与操作。
using Accord.Video.FFMPEG;
using Accord.Video.VFW;
using System;
using System.Collections.Generic;
using System.Drawing;
using System.IO;
using System.Linq;
using System.Text;
using System.Timers;
namespace Receive.udp
{
public class VideoPackageModel: IDisposable
{
//校验码
public string PrivateKey { get; }
//机器码
public string SessionId { get;}
//录制开始时间
public DateTime StartTime { get; }
//录制结束时间
public DateTime EndTime { get; }
//视频路径
public string VideoPath { get; }
//计时器
private System.Timers.Timer Timer = new System.Timers.Timer();
//视频写入(32位的FFMPEG)
// private VideoFileWriter Writer = new VideoFileWriter();
//是否释放资源
public bool Disposed = false;
//avi读取
private AVIWriter aviWriter = new AVIWriter("wmv3");
//VideoFileWriter 所需的时间戳
DateTime _firstFrameTime;
public VideoPackageModel(string privateKey,string sessionId,DateTime startTime,DateTime endTime,int second,string path)
{
SessionId = sessionId;
PrivateKey = privateKey;
StartTime = startTime;
EndTime = endTime;
_firstFrameTime = DateTime.Now;
int width = 848; //录制视频的宽度
int height = 480; //录制视频的高度
int fps = 20;
path = getTimeStamp(path);
aviWriter.Open(path, Convert.ToInt32( width), Convert.ToInt32( height));
// Writer.Open(path, width, height, fps, VideoCodec.Default);
int lastTime = second * 1000;
Console.WriteLine("持续时间"+lastTime);
Timer.Elapsed += new System.Timers.ElapsedEventHandler(endTimeEvent); //到达时间的时候执行事件；
Timer.AutoReset = false; //设置是执行一次（false）还是一直执行(true)；
Timer.Interval = lastTime;//设置定时间隔(毫秒为单位)
Timer.Enabled = true;
}
/// 辅助类——字节数组操作类。
using System;
using System.Collections.Generic;
using System.Drawing;
using System.IO;
using System.Linq;
using System.Text;
namespace Receive.udp
{
//handle byte
public class HandleUdpUtils
{
public static readonly string IMG_END_FLAG = "##"; //设备传来的结束标志
public static readonly string WEB_END_FLAG = "**"; //WEB传来的结束标志
public static readonly string WEB_SESSION_KEY = "f21c2a0689443179082e02f8f44079";
public static readonly int KEY_LENGTH = 40;
public static readonly int MACHINE_CODE_LENGTH = 80;
public enum TimeTypeEnum { Day,Hour, Minute,Second }
/// 主函数：
using Receive.udp;
using SuperSocket.SocketBase;
using SuperSocket.SocketBase.Config;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace UdpSocketServer
{
class Program
{
private static IServerConfig SERVER_CONFIG;
private static IRootConfig ROOT_CONFIG;
public static IServerConfig DefaultServerConfig
{
get
{
return new ServerConfig
{
Ip = "127.0.0.1",
LogCommand = true,
MaxConnectionNumber = 1000,
Mode = SocketMode.Udp,
Name = "Udp Test Socket Server",
Port = 6602,
ClearIdleSession = true,
ClearIdleSessionInterval = 1,
IdleSessionTimeOut = 5,
SendingQueueSize = 100,
ReceiveBufferSize = 50000
};
}
}
static void Main(string[] args)
{
initData();
SERVER_CONFIG = DefaultServerConfig;
ROOT_CONFIG = new RootConfig();
var testServer = new UdpAppServer();
testServer.Setup(ROOT_CONFIG, SERVER_CONFIG);
testServer.Start();
while (true)
{
}
}
private static void initData()
{
UdpAppServer.PRIVATE_KEY.Add("webSession", "f21c2a0689443179082e02f8f44079");
UdpAppServer.PRIVATE_KEY.Add("001", "key001");
UdpAppServer.PRIVATE_KEY.Add("002", "key002");
UdpAppServer.PRIVATE_KEY.Add("003", "key003");
}
}
}
下载Demo地址：
https://download.csdn.net/download/a748448660/10559647