/// <summary>
/// 向对方UDP端口发送握手数据
/// </summary>
private void UdpHandshake()
{
try
{
CSS.IM.Library.Class.msgAV msg = new CSS.IM.Library.Class.msgAV();
if (!UdpHandshakeInfoClass)//如果为局域网握手
{
msg.InfoClass = (byte)CSS.IM.Library.Class.ProtocolAVTransmit.HandshakeLAN;
this.sockUDP1.Send(this._OppositeUserInfo.LocalIP, this.OppositeUDPPort, msg.getBytes());
}
else if (UdpHandshakeInfoClass)//如果为广域网握手
{
msg.InfoClass = (byte)CSS.IM.Library.Class.ProtocolAVTransmit.HandshakeWAN;
this.sockUDP1.Send(this._OppositeUserInfo.IP, this.OppositeUDPPort, msg.getBytes());
}
}
catch { }
}
private void RemoteAssist_Socket_DataArrival(object sender, SockEventArgs e)
{
CSS.IM.Library.Class.msgAV msg = new CSS.IM.Library.Class.msgAV(e.Data);
this.DataArrival(msg, CSS.IM.Library.Class.NatClass.FullCone, e.IP, e.Port);
}
private void TCPClient1_OnDataArrival(object sender, CSS.IM.Library.Net.SockEventArgs e)
{
//if (e.Data.Length < 10) return;
CSS.IM.Library.Class.msgAV msg = new CSS.IM.Library.Class.msgAV(e.Data);
this.DataArrival(msg, CSS.IM.Library.Class.NatClass.Tcp, null, 0);
}
private void timerConnection_Elapsed(object sender, System.Timers.ElapsedEventArgs e)
{
if (this.netClass != CSS.IM.Library.Class.NetCommunicationClass.None)//如果UDP通信成功
{
this.timerConnection.Enabled = false;//停止通信状态检测
if (this.AVConnected != null)//触发通信成功事件，并退出通信测试
this.AVConnected(this, this.netClass);
return;
}
TimeOutCount++;
if (TimeOutCount == 1 ) ///假设双方均在同一局域网内，则采用P2P UDP方式收发数据
{
this.UdpHandshakeInfoClass = false;//UDP握手有两种可能，第一种为局域网，记为false，第二种为广域网，记为true;此时标记为局域网false
if (!this.sockUDP1.Listened)//如果没有侦听，则侦听
this.UDPListen();
if (!this.IsGetLanUDP && this.AVGetUDPPort != null)//如果未与对方建立通信，触发UDP端口侦听成功事件，告之对方自己的UDP端口
{
this.IsGetLanUDP = true;
this.AVGetUDPPort(this, this.selfUDPPort, this.UdpHandshakeInfoClass);
}
}
///程序执行到这里表示双方假设为局域网通信不成立
///2秒开始测试广域网UDP通信
if (TimeOutCount == 20 )
if (this._selfUserInfo.NetClass < (byte)CSS.IM.Library.Class.NatClass.Tcp && this._OppositeUserInfo.NetClass < (byte)CSS.IM.Library.Class.NatClass.Tcp)
{
//如果双方均在广域网上，采用UDP通信，且双方都不是 Symmetric NAT，则采用广域网UDP P2P通信
this.UdpHandshakeInfoClass = true;//UDP握手有两种可能，第一种为局域网，记为false，第二种为广域网，记为true;此时标记为广域网
if (!this.sockUDP1.Listened)//如果没有侦听，则侦听
this.UDPListen();
CSS.IM.Library.Class.msgAV msg = new CSS.IM.Library.Class.msgAV();
msg.InfoClass = (byte)CSS.IM.Library.Class.ProtocolAVTransmit.GetUDPWANInfo;//通信协议，获得UDP套接字的广域网UDP端口
this.sockUDP1.Send(_serverIp, _serverUDPPort, msg.getBytes());
//Calculate.WirteLog("测试采用广域网方式通信");
}
else
{
TimeOutCount = 40;//如果只能通过代理传输，则开始使用代理
}
//4秒后开始测试广域网
if (TimeOutCount == 40)
{
//如果用户自己与对方其中一方使用TCP登录，则需要使用TCP代理服务器中转数据传输
this.TCPClient1.InitSocket(this._selfUserInfo.LocalIP, 0);//邦定本机TCP随机端口
this.TCPClient1.Connect(this._serverIp, _serverTCPPort);//TCP检测联接服务器
}
///程序执行到此表示不能建立任何传输联接，触发无法联接事件
//7秒后开始测试广域网
if (TimeOutCount > 70)
{
if (this.AVConnected != null)//触发通信成功事件，并退出通信测试
this.AVConnected(this, this.netClass);
this.timerConnection.Enabled = false;//停止通信状态检测
this.CancelTransmit(true);//取消传输
return;
}
}
private void TCPClient1_OnConnected(object sender, CSS.IM.Library.Net.SockEventArgs e)
{
//CSS.IM.Library.Calculate.WirteLog("已连接");
CSS.IM.Library.Class.msgAV msg = new CSS.IM.Library.Class.msgAV();
msg.InfoClass = (byte)CSS.IM.Library.Class.ProtocolAVTransmit.GetAVTransmitProxyID;
this.TCPClient1.SendData(msg.getBytes());//向服务器申请中转服务ID号
}
private void sockUDP1_DataArrival(object sender, CSS.IM.Library.Net.SockEventArgs e)
{
//if (e.Data.Length < 10) return;
CSS.IM.Library.Class.msgAV msg = new CSS.IM.Library.Class.msgAV(e.Data);
this.DataArrival(msg, CSS.IM.Library.Class.NatClass.FullCone, e.IP, e.Port);
}
/// <summary>
/// 设置对方传输UDP本地端口
/// </summary>
/// <param name="Port">传输UDP本地端口</param>
public void setGetUdpLocalPort(int Port, bool udpHandshakeInfoClass)
{
this.OppositeUDPPort = Port;//设置对方UDP端口号
this.UdpHandshakeInfoClass = udpHandshakeInfoClass;//握手方式
System.Threading.Thread.Sleep(100);
if (!udpHandshakeInfoClass)//如果自己还未UDP侦听,采用局域网方式通信
{
if (!this.sockUDP1.Listened)//如果没有侦听
this.UDPListen();//随机UDP侦听
if (!this.IsGetLanUDP && this.AVGetUDPPort != null)//如果未与对方建立通信,则产生获得端口事件
{
this.IsGetLanUDP = true;
this.AVGetUDPPort(this, this.selfUDPPort, false);
}
//Calculate.WirteLog( "对方要求采用局域网方式通信");
}
else if (udpHandshakeInfoClass)//采用广域网方式通信
{
if (!this.sockUDP1.Listened)//如果没有侦听
this.UDPListen();//随机UDP侦听
CSS.IM.Library.Class.msgAV msg = new CSS.IM.Library.Class.msgAV();
msg.InfoClass = (byte)CSS.IM.Library.Class.ProtocolAVTransmit.GetUDPWANInfo;//通信协议
this.sockUDP1.Send(_serverIp, _serverUDPPort, msg.getBytes());//获得文件传输套接字的广域网UDP端口
//Calculate.WirteLog("对方要求采用广域网方式通信");
}
if (!timersUdpPenetrate.Enabled)//如果未握手，则开始握手
timersUdpPenetrate.Enabled = true;//开始向对方UDP端口握手(打洞),如果成功，表示可以进行UDP通信
}
/// <summary>
/// 发送视频数据到对方
/// </summary>
/// <param name="data">视频数据</param>
public void SendVideo(byte[] data)
{
CSS.IM.Library.Class.msgAV msg = new CSS.IM.Library.Class.msgAV();
msg.InfoClass = (byte)CSS.IM.Library.Class.ProtocolAVTransmit.GetVideoData;
msg.DataBlock = data ;
this.sendData(msg);
}
/// <summary>
/// 发送视频图像头信息到对方
/// </summary>
/// <param name="BITMAPINFOHEADER">视频图像头信息</param>
public void SendBITMAPINFOHEADER(BITMAPINFOHEADER BITMAPINFOHEADER)
{
CSS.IM.Library.Class.BitmapInfoHeader bitmapInfoHeader = new CSS.IM.Library.Class.BitmapInfoHeader();
bitmapInfoHeader.biBitCount = BITMAPINFOHEADER.biBitCount;
bitmapInfoHeader.biClrImportant = BITMAPINFOHEADER.biClrImportant;
bitmapInfoHeader.biClrUsed = BITMAPINFOHEADER.biClrUsed;
bitmapInfoHeader.biCompression = BITMAPINFOHEADER.biCompression;
bitmapInfoHeader.biHeight = BITMAPINFOHEADER.biHeight;
bitmapInfoHeader.biPlanes = BITMAPINFOHEADER.biPlanes;
bitmapInfoHeader.biSize = BITMAPINFOHEADER.biSize;
bitmapInfoHeader.biSizeImage = BITMAPINFOHEADER.biSizeImage;
bitmapInfoHeader.biWidth = BITMAPINFOHEADER.biWidth;
bitmapInfoHeader.biXPelsPerMeter = BITMAPINFOHEADER.biXPelsPerMeter;
bitmapInfoHeader.biYPelsPerMeter = BITMAPINFOHEADER.biYPelsPerMeter;
CSS.IM.Library.Class.msgAV msg = new CSS.IM.Library.Class.msgAV();
msg.InfoClass = (byte)CSS.IM.Library.Class.ProtocolAVTransmit.GetBITMAPINFOHEADER;
msg.DataBlock = bitmapInfoHeader.getBytes();
this.sendData(msg);
}