P2P编程

开发平台：
C#

MyAV.cs：源码内容
							using System;
using System.Collections;
using System.ComponentModel;
using System.Drawing;
using System.Data;
using System.Windows.Forms;
using LanMsg.AV;
using System.Net;
namespace LanMsg
{
	/// <summary>
	/// MyAV 的摘要说明。
	/// </summary>
	public class MyAV : System.Windows.Forms.UserControl
	{
		private System.ComponentModel.IContainer components;
		private LanMsg.AV.AV av;
		private Mixer mixer;
		private Mixer.MixerControlDetail indtl,outdtl;
		private System.Windows.Forms.TrackBar trackBarOut;
		private System.Windows.Forms.TrackBar trackBarIn;
        
		public System.Net.IPAddress serverIp;//对方的公网IP
		public int  serverPort;//对方的公网UDP端口
		private DevComponents.DotNetBar.Bar bar4;
		private DevComponents.DotNetBar.ButtonItem buttonItemNotice;
		private DevComponents.DotNetBar.LabelItem labelItem1;
		private System.Windows.Forms.Panel panel1;
		private System.Windows.Forms.Panel panelSelfAV;
		private System.Windows.Forms.PictureBox pictureBox2;
		private System.Windows.Forms.PictureBox pictureBox1;
		private System.Windows.Forms.Label label1;
		private System.Windows.Forms.Label label2;
		private System.Windows.Forms.GroupBox groupBox1;
		private System.Windows.Forms.LinkLabel linkLabelCancelAV;
		public System.Windows.Forms.LinkLabel linkLabelReceve;
		public System.Windows.Forms.Timer timer1;//对方的公网端口
        public LanMsg.Controls.ClassMsg msg;
		private System.Windows.Forms.PictureBox picLocal;
		private System.Windows.Forms.PictureBox picRemoteBack;
		private System.Windows.Forms.PictureBox picRemote;//发送请求的消息
        public int colorChange=0;
		#region  AV传输事件
	
		public delegate void AVReceveEventHandler(object sender,bool isSelf);//接收AV对话事件
		public  event AVReceveEventHandler AVReceve; 
		public delegate void AVCancelEventHandler(object sender,bool isSelf);//取消AV对话事件
		public  event AVCancelEventHandler AVCancel; 
	    
		#endregion
		public MyAV()
		{
			// 该调用是 Windows.Forms 窗体设计器所必需的。
			InitializeComponent();
			InitializeMixing();
			 
			// TODO: 在 InitializeComponent 调用后添加任何初始化
		}
		private void InitializeMixing()//初始化声卡麦克风
		{
			mixer=new Mixer(this);
			mixer.MixerControlChange +=new EventHandler(mixer_MixerControlChange); 
			
			this.outdtl=new Mixer.MixerControlDetail(mixer,Mixer.MIXERLINE_COMPONENTTYPE_DST_SPEAKERS);
			this.trackBarOut.Minimum=this.outdtl.Min;
			this.trackBarOut.Maximum=this.outdtl.Max;
			this.trackBarOut.Value=this.outdtl.Volume;
			
			this.indtl=new Mixer.MixerControlDetail(mixer,Mixer.MIXERLINE_COMPONENTTYPE_SRC_MICROPHONE);
			this.trackBarIn.Minimum=indtl.Min;
			this.trackBarIn.Maximum=indtl.Max;
			this.trackBarIn.Value=this.indtl.Volume;
		}
		/// <summary> 
		/// 清理所有正在使用的资源。
		/// </summary>
		protected override void Dispose( bool disposing )
		{
			if( disposing )
			{
				mixer.MixerControlChange -=new EventHandler(mixer_MixerControlChange);
				try
				{
					this.av.AVChanel.Close();
				}
				catch{}
				try
				{
					this.av.Chanel.Close();
				}
				catch{}
				try
				{
					this.av.Dispose();
				}
				catch{}
				if(components != null)
				{
					components.Dispose();
				}
			}
			base.Dispose( disposing );
		}
		#region 组件设计器生成的代码
		/// <summary> 
		/// 设计器支持所需的方法 - 不要使用代码编辑器 
		/// 修改此方法的内容。
		/// </summary>
		private void InitializeComponent()
		{
			this.components = new System.ComponentModel.Container();
			System.Resources.ResourceManager resources = new System.Resources.ResourceManager(typeof(MyAV));
			this.trackBarIn = new System.Windows.Forms.TrackBar();
			this.trackBarOut = new System.Windows.Forms.TrackBar();
			this.bar4 = new DevComponents.DotNetBar.Bar();
			this.buttonItemNotice = new DevComponents.DotNetBar.ButtonItem();
			this.labelItem1 = new DevComponents.DotNetBar.LabelItem();
			this.panel1 = new System.Windows.Forms.Panel();
			this.picRemote = new System.Windows.Forms.PictureBox();
			this.picRemoteBack = new System.Windows.Forms.PictureBox();
			this.pictureBox2 = new System.Windows.Forms.PictureBox();
			this.panelSelfAV = new System.Windows.Forms.Panel();
			this.picLocal = new System.Windows.Forms.PictureBox();
			this.pictureBox1 = new System.Windows.Forms.PictureBox();
			this.label2 = new System.Windows.Forms.Label();
			this.label1 = new System.Windows.Forms.Label();
			this.linkLabelReceve = new System.Windows.Forms.LinkLabel();
			this.linkLabelCancelAV = new System.Windows.Forms.LinkLabel();
			this.groupBox1 = new System.Windows.Forms.GroupBox();
			this.timer1 = new System.Windows.Forms.Timer(this.components);
			((System.ComponentModel.ISupportInitialize)(this.trackBarIn)).BeginInit();
			((System.ComponentModel.ISupportInitialize)(this.trackBarOut)).BeginInit();
			((System.ComponentModel.ISupportInitialize)(this.bar4)).BeginInit();
			this.panel1.SuspendLayout();
			this.panelSelfAV.SuspendLayout();
			this.groupBox1.SuspendLayout();
			this.SuspendLayout();
			// 
			// trackBarIn
			// 
			this.trackBarIn.Location = new System.Drawing.Point(56, 52);
			this.trackBarIn.Name = "trackBarIn";
			this.trackBarIn.Size = new System.Drawing.Size(56, 42);
			this.trackBarIn.TabIndex = 2;
			this.trackBarIn.Scroll += new System.EventHandler(this.trackBarOut_Scroll);
			// 
			// trackBarOut
			// 
			this.trackBarOut.Location = new System.Drawing.Point(56, 12);
			this.trackBarOut.Name = "trackBarOut";
			this.trackBarOut.Size = new System.Drawing.Size(56, 42);
			this.trackBarOut.TabIndex = 3;
			this.trackBarOut.Scroll += new System.EventHandler(this.trackBarOut_Scroll);
			// 
			// bar4
			// 
			this.bar4.Dock = System.Windows.Forms.DockStyle.Top;
			this.bar4.Items.AddRange(new DevComponents.DotNetBar.BaseItem[] {
																				this.buttonItemNotice,
																				this.labelItem1});
			this.bar4.Location = new System.Drawing.Point(0, 0);
			this.bar4.Name = "bar4";
			this.bar4.Size = new System.Drawing.Size(296, 25);
			this.bar4.Stretch = true;
			this.bar4.Style = DevComponents.DotNetBar.eDotNetBarStyle.Office2007;
			this.bar4.TabIndex = 42;
			this.bar4.TabStop = false;
			this.bar4.Text = "bar4";
			// 
			// buttonItemNotice
			// 
			this.buttonItemNotice.Icon = ((System.Drawing.Icon)(resources.GetObject("buttonItemNotice.Icon")));
			this.buttonItemNotice.Name = "buttonItemNotice";
			// 
			// labelItem1
			// 
			this.labelItem1.BorderType = DevComponents.DotNetBar.eBorderType.None;
			this.labelItem1.Name = "labelItem1";
			this.labelItem1.Text = "对方视频";
			// 
			// panel1
			// 
			this.panel1.BackColor = System.Drawing.Color.Cyan;
			this.panel1.Controls.Add(this.picRemote);
			this.panel1.Controls.Add(this.picRemoteBack);
			this.panel1.Controls.Add(this.pictureBox2);
			this.panel1.Dock = System.Windows.Forms.DockStyle.Top;
			this.panel1.Location = new System.Drawing.Point(0, 25);
			this.panel1.Name = "panel1";
			this.panel1.Size = new System.Drawing.Size(296, 223);
			this.panel1.TabIndex = 43;
			// 
			// picRemote
			// 
			this.picRemote.BackColor = System.Drawing.Color.WhiteSmoke;
			this.picRemote.Location = new System.Drawing.Point(68, 51);
			this.picRemote.Name = "picRemote";
			this.picRemote.Size = new System.Drawing.Size(160, 120);
			this.picRemote.TabIndex = 10;
			this.picRemote.TabStop = false;
			// 
			// picRemoteBack
			// 
			this.picRemoteBack.BackColor = System.Drawing.Color.WhiteSmoke;
			this.picRemoteBack.BorderStyle = System.Windows.Forms.BorderStyle.FixedSingle;
			this.picRemoteBack.Location = new System.Drawing.Point(8, 8);
			this.picRemoteBack.Name = "picRemoteBack";
			this.picRemoteBack.Size = new System.Drawing.Size(280, 208);
			this.picRemoteBack.SizeMode = System.Windows.Forms.PictureBoxSizeMode.CenterImage;
			this.picRemoteBack.TabIndex = 8;
			this.picRemoteBack.TabStop = false;
			// 
			// pictureBox2
			// 
			this.pictureBox2.Dock = System.Windows.Forms.DockStyle.Fill;
			this.pictureBox2.Image = ((System.Drawing.Image)(resources.GetObject("pictureBox2.Image")));
			this.pictureBox2.Location = new System.Drawing.Point(0, 0);
			this.pictureBox2.Name = "pictureBox2";
			this.pictureBox2.Size = new System.Drawing.Size(296, 223);
			this.pictureBox2.SizeMode = System.Windows.Forms.PictureBoxSizeMode.StretchImage;
			this.pictureBox2.TabIndex = 9;
			this.pictureBox2.TabStop = false;
			// 
			// panelSelfAV
			// 
			this.panelSelfAV.BackColor = System.Drawing.Color.Cyan;
			this.panelSelfAV.Controls.Add(this.picLocal);
			this.panelSelfAV.Controls.Add(this.pictureBox1);
			this.panelSelfAV.Location = new System.Drawing.Point(123, 248);
			this.panelSelfAV.Name = "panelSelfAV";
			this.panelSelfAV.Size = new System.Drawing.Size(170, 134);
			this.panelSelfAV.TabIndex = 45;
			// 
			// picLocal
			// 
			this.picLocal.BackColor = System.Drawing.Color.WhiteSmoke;
			this.picLocal.BorderStyle = System.Windows.Forms.BorderStyle.FixedSingle;
			this.picLocal.Location = new System.Drawing.Point(5, 8);
			this.picLocal.Name = "picLocal";
			this.picLocal.Size = new System.Drawing.Size(160, 120);
			this.picLocal.TabIndex = 8;
			this.picLocal.TabStop = false;
			// 
			// pictureBox1
			// 
			this.pictureBox1.Dock = System.Windows.Forms.DockStyle.Fill;
			this.pictureBox1.Image = ((System.Drawing.Image)(resources.GetObject("pictureBox1.Image")));
			this.pictureBox1.Location = new System.Drawing.Point(0, 0);
			this.pictureBox1.Name = "pictureBox1";
			this.pictureBox1.Size = new System.Drawing.Size(170, 134);
			this.pictureBox1.SizeMode = System.Windows.Forms.PictureBoxSizeMode.StretchImage;
			this.pictureBox1.TabIndex = 47;
			this.pictureBox1.TabStop = false;
			// 
			// label2
			// 
			this.label2.AutoSize = true;
			this.label2.ForeColor = System.Drawing.Color.Purple;
			this.label2.Location = new System.Drawing.Point(8, 57);
			this.label2.Name = "label2";
			this.label2.Size = new System.Drawing.Size(54, 17);
			this.label2.TabIndex = 5;
			this.label2.Text = "麦克风：";
			// 
			// label1
			// 
			this.label1.AutoSize = true;
			this.label1.ForeColor = System.Drawing.Color.Purple;
			this.label1.Location = new System.Drawing.Point(8, 20);
			this.label1.Name = "label1";
			this.label1.Size = new System.Drawing.Size(42, 17);
			this.label1.TabIndex = 4;
			this.label1.Text = "声卡：";
			// 
			// linkLabelReceve
			// 
			this.linkLabelReceve.AutoSize = true;
			this.linkLabelReceve.Font = new System.Drawing.Font("宋体", 11F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((System.Byte)(134)));
			this.linkLabelReceve.ForeColor = System.Drawing.Color.Purple;
			this.linkLabelReceve.LinkColor = System.Drawing.Color.DarkRed;
			this.linkLabelReceve.Location = new System.Drawing.Point(3, 359);
			this.linkLabelReceve.Name = "linkLabelReceve";
			this.linkLabelReceve.Size = new System.Drawing.Size(66, 20);
			this.linkLabelReceve.TabIndex = 47;
			this.linkLabelReceve.TabStop = true;
			this.linkLabelReceve.Text = "接收视频";
			this.linkLabelReceve.Visible = false;
			this.linkLabelReceve.LinkClicked += new System.Windows.Forms.LinkLabelLinkClickedEventHandler(this.linkLabelReceve_LinkClicked);
			// 
			// linkLabelCancelAV
			// 
			this.linkLabelCancelAV.AutoSize = true;
			this.linkLabelCancelAV.Font = new System.Drawing.Font("宋体", 11F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((System.Byte)(134)));
			this.linkLabelCancelAV.ForeColor = System.Drawing.Color.Purple;
			this.linkLabelCancelAV.LinkColor = System.Drawing.Color.DarkRed;
			this.linkLabelCancelAV.Location = new System.Drawing.Point(75, 359);
			this.linkLabelCancelAV.Name = "linkLabelCancelAV";
			this.linkLabelCancelAV.Size = new System.Drawing.Size(36, 20);
			this.linkLabelCancelAV.TabIndex = 48;
			this.linkLabelCancelAV.TabStop = true;
			this.linkLabelCancelAV.Text = "取消";
			this.linkLabelCancelAV.LinkClicked += new System.Windows.Forms.LinkLabelLinkClickedEventHandler(this.linkLabelCancelAV_LinkClicked);
			// 
			// groupBox1
			// 
			this.groupBox1.Controls.Add(this.label1);
			this.groupBox1.Controls.Add(this.trackBarOut);
			this.groupBox1.Controls.Add(this.label2);
			this.groupBox1.Controls.Add(this.trackBarIn);
			this.groupBox1.FlatStyle = System.Windows.Forms.FlatStyle.System;
			this.groupBox1.ForeColor = System.Drawing.Color.Purple;
			this.groupBox1.Location = new System.Drawing.Point(3, 251);
			this.groupBox1.Name = "groupBox1";
			this.groupBox1.Size = new System.Drawing.Size(117, 96);
			this.groupBox1.TabIndex = 49;
			this.groupBox1.TabStop = false;
			this.groupBox1.Text = "音量调整";
			// 
			// timer1
			// 
			this.timer1.Interval = 56000;
			this.timer1.Tick += new System.EventHandler(this.timer1_Tick);
			// 
			// MyAV
			// 
			this.BackColor = System.Drawing.Color.Cyan;
			this.Controls.Add(this.groupBox1);
			this.Controls.Add(this.linkLabelCancelAV);
			this.Controls.Add(this.linkLabelReceve);
			this.Controls.Add(this.panelSelfAV);
			this.Controls.Add(this.panel1);
			this.Controls.Add(this.bar4);
			this.Name = "MyAV";
			this.Size = new System.Drawing.Size(296, 392);
			((System.ComponentModel.ISupportInitialize)(this.trackBarIn)).EndInit();
			((System.ComponentModel.ISupportInitialize)(this.trackBarOut)).EndInit();
			((System.ComponentModel.ISupportInitialize)(this.bar4)).EndInit();
			this.panel1.ResumeLayout(false);
			this.panelSelfAV.ResumeLayout(false);
			this.groupBox1.ResumeLayout(false);
			this.ResumeLayout(false);
		}
		#endregion
		public void SetParameter(System.Net.IPAddress ip,int port,LanMsg.Controls.ClassMsg msg)
		{
            this.serverIp =ip;
		    this.serverPort=port;
			this.msg=msg;
			this.ReadyConnect();
		}
		public void ColseAV()//关闭当前正在进行的视频对话
		{
			IsAV=false;
			this.linkLabelReceve.Visible=false;
			try
			{
				this.av.AVChanel.Close();
			}
			catch{}
			try
			{
				this.av.Chanel.Close();
			}
			catch{}
			try
			{
				this.av.Dispose();
			}
			catch{}
		}
		private void mixer_MixerControlChange(object sender, EventArgs e)
		{
			this.trackBarIn.Value=this.indtl.Volume;
			this.trackBarOut.Value=this.outdtl.Volume;
		}
		private void trackBarOut_Scroll(object sender, System.EventArgs e)
		{
			this.outdtl.Volume=this.trackBarOut.Value;
			this.indtl.Volume=this.trackBarIn.Value;
		}
		public void Initialize()//初始化视频图片与sock
		{
			if(av!=null)this.av.Dispose();
			this.av=new  AV.AV(this.picLocal ,this.picRemote);
			this.av.IniChanel();
		}
		public AV.AV  AV
		{
			get{return this.av;}
		}
        private bool IsAV=false;//表示当前是否正在视频中
		private void ReadyConnect()//准备连接，并告诉对方本地IP与端口，让其联接
		{
			if(!IsAV)
			{
				Initialize();
				this.av.ReadyStrat(new ClassSerializers().SerializeBinary(this.msg).ToArray() ,this.serverIp ,this.serverPort);
			}
			else
			{
				this.av.AVChanel.Close();
				this.av.Chanel.Close();
 			}
			IsAV=!IsAV;
			//UDP打洞
		}
		public void Connect(string ip,int port)//连接到对方并且开始发送AV数据
		{
			this.av.IniAudio();
			this.av.IniVideo();
			this.av.Start(ip,port);
		}
		public void Stop()
		{
			if(this.av!=null)this.av.Dispose();
		}
		private void timer1_Tick(object sender, System.EventArgs e)
		{
		    this.av.UDPBurrowNat(this.serverIp ,this.serverPort );//UDP打洞
		}
		private void linkLabelCancelAV_LinkClicked(object sender, System.Windows.Forms.LinkLabelLinkClickedEventArgs e)
		{
		    IsAV=false;
			this.linkLabelReceve.Visible=false;
			try
			{
				this.av.AVChanel.Close();
				this.av.Chanel.Close();
				this.av.Dispose();
			}
			catch{}
			this.AVCancel(this,true);//触发终止事件
		}
		private void linkLabelReceve_LinkClicked(object sender, System.Windows.Forms.LinkLabelLinkClickedEventArgs e)
		{
			this.linkLabelReceve.Visible=false;
			this.AVReceve(this,true);//触发AV接收事件
			Initialize();//初始化视频设备
			this.av.IniAudio();//初始化音频设备
			this.av.IniVideo();//初始化视频设备
            this.AV.BeginAV(new ClassSerializers().SerializeBinary(new LanMsg.Controls.ClassMsg(14,this.msg.ID,null)).ToArray(),this.serverIp,this.serverPort);//告诉对方可以开始视频
		}
	}
}

						