广州行

　　来中山大学一周了，陪师兄做一个项目，也没帮上什么忙，多数时间打酱油度过。学习了下c#，在unity里面写了个socket视频传输模块，速度还行，就是图片错误率降不下来。之前做的用android向pc发送视频倒是不卡，看来还有待改善。

记录下代码吧。

server：

using UnityEngine;
using System.Collections;
using System.Net.Sockets;
using System.Threading;
using System.Net;
using System;
using System.IO;

public class drawTexture2D : MonoBehaviour
{
    public byte[] image;
    static byte[] recv=new byte[640*480*3];
    static int conLen=0;
    static int mLength=0;
    static Texture2D image2D;
    static Socket mServer;
    Thread mSocket = new Thread(accept);
    static bool mstop = false;
    public GameObject plane;
    static int countflag=0;
    static bool drawflag = false;
	void Start ()
    {
        //image = new byte[640*480*3];
        image2D = new Texture2D(640,480,TextureFormat.RGB24,false);
        IPAddress ip = IPAddress.Parse("192.168.1.112");  
        mServer = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);  
        mServer.Bind(new IPEndPoint(ip, 12345));                                             //绑定IP地址：端口  
        mServer.Listen(10);                                                                  //设定最多10个排队连接请求  
        mSocket.IsBackground = true;
        mSocket.Start();
	}	
	// Update is called once per frame
	void Update ()
    {
        //if (countflag == 2)
        //{
        //    if (drawflag==true)
        //    {
        //        image2D.LoadImage(recv);
        //        countflag = 1;
        //    }
        //}
        //plane.GetComponent<Renderer>().material.mainTexture = image2D;
	}
    void OnGUI()
    {
        if (countflag == 2)
        {
            if (drawflag == true)
            {
                image2D.LoadImage(recv);
                countflag = 1;
            }
        }
        GUI.DrawTexture(new Rect(100, 100, 640, 480), image2D);
    }
    void OnDestroy()
    {
        mstop = true;
        mSocket.Abort();
    }
    static void accept()
    {
        Socket mClient = mServer.Accept();
       // mClient.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.ReceiveBuffer, 40000);           //设置接收缓冲区大小
        Debug.Log("accept is ok!");
        byte[] recvheader=new byte[5];
        //recv = new byte[40000];
        while (!mstop)
        {
            mClient.Receive(recvheader);
            if(BitConverter.ToString(recvheader,0,1)!="2B")continue;
            conLen = BitConverter.ToInt32(recvheader, 1);
            if (conLen <10000||conLen>40000) continue;
            mLength = conLen;
            //recv = new byte[conLen];
            mClient.Receive(recv);
            //if (recv[conLen-1] ==0) continue;
            for (int i = 0; i < conLen;i++ )
            {
                if(recv[i]==0)
                {
                    drawflag = false;
                }
                else
                {
                    drawflag = true;
                }
            }
                countflag = 2;

        }
    }

client:
using UnityEngine;
using System.Collections;

using System.Runtime.InteropServices;
using System.Net.Sockets;
using System.Net;
using System.Threading;
public class ImageConver : MonoBehaviour
{
    public GameObject background;//绑定高通库的显示摄像头图像的plane  
    public static byte[] cameraImageBytes;
    public byte[] cameraImageBytes2;
  

    public int currentImage = 0;
    
    private WebCamTexture mm;
    private WebCamTexture mm2;
   
  
    public ReadCamera readCamera;
    public Texture2D cameraTexture;
    public Texture2D cameraTexture2;


    static Socket mClient;
    static IPAddress ip;
    private static int getLength1 = 0;
    private int getLength2 = 0;
    static byte[] header;
    static byte[] header1=new byte[5];
    static byte[] header2;
    static byte[] _header;
    Thread mSocket1 = new Thread(send1);
    static bool mstop = false;
    static string test = ".";
    string mPath=@"F:\1.jpg";
    // Use this for initialization 
    void Start()
    {
        cameraImageBytes = new byte[ReadCamera.WIDTH * ReadCamera.HEIGHT * 3];
        cameraImageBytes2 = new byte[ReadCamera.WIDTH * ReadCamera.HEIGHT * 3];
        cameraTexture = new Texture2D(ReadCamera.WIDTH, ReadCamera.HEIGHT, TextureFormat.RGB24, false);
        cameraTexture2 = new Texture2D(ReadCamera.WIDTH, ReadCamera.HEIGHT, TextureFormat.RGB24, false);
        header = System.Text.Encoding.ASCII.GetBytes(test); 
        ip = IPAddress.Parse("127.0.0.1");
        mClient = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
        mSocket1.Start();
       
    }
    static void send1()
    {
        mClient.Connect(new IPEndPoint(ip, 12345));            //配置服务器IP与端口
        Debug.Log("connect is ok!");
        while (!mstop)
        {
            mClient.Send(header1);
            Thread.Sleep(2);
            mClient.Send(cameraImageBytes);
        }
    }

    void Update()
    {
        if (readCamera.tex != null)
        {
            mm = readCamera.tex;
            for (int i = 0; i < ReadCamera.HEIGHT; i++)
            {
                for (int j = 0; j < ReadCamera.WIDTH; j++)
                {
                    cameraTexture.SetPixel(j, i, mm.GetPixel(j, i));
                }
            }
            cameraImageBytes = cameraTexture.EncodeToJPG();
            getLength1 = cameraImageBytes.Length;
            header1 = Int2Byte(getLength1);
        }
        //if (readCamera.tex2 != null)
        //{
        //    mm2 = readCamera.tex2;

        //    for (int i = 0; i < ReadCamera.HEIGHT; i++)
        //    {
        //        for (int j = 0; j < ReadCamera.WIDTH; j++)
        //        {
        //            cameraTexture2.SetPixel(j, i, mm2.GetPixel(j, i));
        //        }
        //    }
        //    cameraImageBytes2 = cameraTexture2.EncodeToJPG();
        //    getLength2 = cameraImageBytes2.Length;
        //}

        
    }
    byte[] Int2Byte(int len)
    {
        byte[] rtn = new byte[5];
        rtn[0] = (byte)('+'); 
        rtn[1] = (byte)(len & 0xff);
        rtn[2] = (byte)((len >> 8)&0xff);
        rtn[3] = (byte)((len >> 16)&0xff);
        rtn[4] = (byte)((len >> 24)&0xff);
        return rtn;
    }
    byte[] Int2Byte2(int value)
    {
        byte[] src = new byte[4];
        //src[0] = (byte)(value & 0xFF);
        //src[1] = (byte)((value & 0xFF00) >> 8);
        //src[2] = (byte)((value & 0xFF0000) >> 16);
        //src[3] = (byte)((value >> 24) & 0xFF);
        src[3] = (byte)(value >> 24);
        src[2] = (byte)(value >> 16);
        src[1] = (byte)(value >> 8);
        src[0] = (byte)value;
        return src; 
    }

    void OnDestroy()
    {
        mstop = true;
        mSocket1.Abort();
    }
   
}