利用avicap32.dll实现的实时视频传输，在发送和接收视频时应该怎样编写程序？

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;

using System.Net;
using System.Net.Sockets;
using System.Threading;

namespace 实时视频传输系统
{
public partial class MainForm : Form
{
public MainForm()
{
InitializeComponent();
}
/// <summary>
/// 声明Camera类
/// </summary>
Camera ca = null;
//创建一个Thread实例
private Thread thread1;
//创建一个UdpClient实例
private UdpClient udpReceive;
private UdpClient udpSend;
private byte[] bytes;
//private DialogResult result;
private void btnPlay_Click(object sender, EventArgs e)
{
btnPlay.Enabled = false;
btnStop.Enabled = true;

ca = new Camera(pictureBox1.Handle, pictureBox1.Width, pictureBox1.Height);
try
{
ca.StartWebCam();
}
catch (Exception)
{
MessageBox.Show("未能初始化摄像头！", "错误", MessageBoxButtons.OK, MessageBoxIcon.Error);
btnPlay.Enabled = true;
btnStop.Enabled = false;
ca = null;
}
}

private void btnStop_Click(object sender, EventArgs e)
{
try
{
ca.CloseWebcam();

btnPlay.Enabled = true;
btnStop.Enabled = false;
}
catch (Exception)
{
MessageBox.Show("摄像头关闭失败！", "错误", MessageBoxButtons.OK, MessageBoxIcon.Error);
btnPlay.Enabled = true;
btnStop.Enabled = false;
ca = null;
}
}

private void btnClose_Click(object sender, EventArgs e)
{
try
{
ca.CloseWebcam();

btnPlay.Enabled = true;
btnStop.Enabled = false;
}
catch (Exception)
{
MessageBox.Show("摄像头关闭失败！", "错误", MessageBoxButtons.OK, MessageBoxIcon.Error);
btnPlay.Enabled = true;
btnStop.Enabled = false;
ca = null;
}

//关闭程序
this.Close();
Application.Exit();
}


private IPEndPoint ipLocalPoint;
private EndPoint RemotePoint;
private Socket mySocket;
private bool RunningFlag = false;
private void btnGetIP_Click(object sender, EventArgs e)
{
//string GetIP;
//IPAddress[] AddressList = Dns.GetHostEntry(Dns.GetHostEntry()).AddressList;
//if (AddressList.Length < 1)
//{
// return "";
//}
//return AddressList[0].ToString();
//this.tbGetIP.Text = Convert.ToInt32(AddressList);
}
//IP与端口号有效验证
private int getValidPort(string port)
{
int lport;
//测试端口号是否有效
try
{
//是否为空
if (port == "")
{
throw new ArgumentException("端口号无效，不能启动UDP");
}
lport = System.Convert.ToInt32(port);
}
catch(Exception e)
{
Console.WriteLine("无效的端口号"+ e.ToString());
this.tbGetPort.AppendText("无效的端口号"+ e.ToString()+"\n");
return -1;
}
return lport;
}
private IPAddress getValidIP(string ip)
{
IPAddress lip = null;
//测试IP是否有效
try
{
//是否为空
if (!IPAddress.TryParse(ip, out lip))
{
throw new ArgumentException("IP无效，不能启动UDP");
}
}
catch(Exception e)
{
Console.WriteLine("无效的IP："+ e.ToString());
this.tbGetIP.AppendText("无效的IP："+ e.ToString() +"\n");
return null;
}
return lip;
}

private void MainForm_Load(object sender, EventArgs e)
{
thread1 = new Thread(new ThreadStart());
thread1.Start();
}

private void btnReceive_Click(object sender, EventArgs e)
{
//在本机指定的端口接收
udpReceive = new UdpClient(8001);
//将套接字加入组播组
udpReceive.JoinMulticastGroup(IPAddress.Parse("224.100.0.10"), 50);
//接收从远程主机发送过来的信息
IPEndPoint iep = new IPEndPoint(IPAddress.Any, 0);
while (true)
{
//ref表示引用类型的 IPPoint实例接收消息
try
{
bytes = udpReceive.Receive(ref iep);
}
catch
{
DialogResult result = MessageBox.Show("发送失败！");
}
string str = Encoding.UTF8.GetString(bytes, 0, bytes.Length);
string message = "来自" + iep.ToString() + "的消息";
//显示消息 并以message为消息的标题
DialogResult res = MessageBox.Show(str, message);
}
}

private void btnSend_Click_1(object sender, EventArgs e)
{
//初始化UdpClient
udpSend = new UdpClient();
//实际使用时应将127.0.0.1改为服务器的远程IP
IPAddress remoteIPAddress = IPAddress.Parse("127.0.0.1");
IPEndPoint remoteIPEndPoint = new IPEndPoint(remoteIPAddress, 8002);
//将发送内容转换为字节数组
byte[] bytes = System.Text.Encoding.UTF8.GetBytes();
//设置重传次数
int retry = 0;
while (true)
{
try
{
udpSend.Send(bytes, bytes.Length, remoteIPEndPoint);
break;
}
catch
{
if (retry < 3)
{
retry++; continue;
}
else
{
DialogResult result = MessageBox.Show("发送失败！");
break;
}
}
}
}



}
}
请各位大鸟指正，非常感谢！