Python设置Socket代理及实现远程摄像头控制的例子_Python

为python设置socket代理
首先,你得下载SocksiPy这个.解压出来之后里面会有一个socks.py文件.然后你可以把这个文件复制到python安装目录里面的Lib\site-packages中.或者把这个文件复制到程序所在的目录中.
然后就可以再程序中使用socket代理来编写程序了.
下面是示例代码

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									import socks

									import socket

									socks.setdefaultproxy(socks.PROXY_TYPE_SOCKS5,"127.0.0.1",8088)

									socket.socket =socks.socksocket

									import urllib2

									urllib2.urlopen('http://www.baidu.com').read()

通过socket通信实现远程摄像头监控
通过python来实现摄像头监控,然后通过socket通信来将数据发送到远程服务器,这样就可以实现远程监控了.大概找了下资料,果然可以,下面贴出实现过程.
这个程序包括一个服务器和一个客户端。需要的库有 VideoCapture 和 pygame，一个用来得到摄像头的视频，一个用来显示.
服务器端,主要实现监听客户端所发送到指令,如果指令是startCam,则打开摄像头,并向客户端发送数据.

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									from VideoCapture import Device

									import ImageDraw, sys, pygame, time

									from pygame.locals import *

									import socket

									import time

									from PIL import ImageEnhance

									from threading import Thread

									import traceback

									import threading

									# 全局变量

									is_sending = False

									cli_address = ('', 0)

									# 主机地址和端口

									host = 'localhost'

									port = 10218

									# 初始化UDP socket

									ser_socket = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)

									ser_socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)

									ser_socket.bind((host, port))

									# 接收线程类，用于接收客户端发送的消息

									class UdpReceiver(threading.Thread):

									  def __init__(self):

									    threading.Thread.__init__(self)

									    self.thread_stop = False

									  def run(self):

									    while not self.thread_stop:

									      # 声明全局变量，接收消息后更改

									      global cli_address  

									      global is_sending

									      try:

									        message, address = ser_socket.recvfrom(2048)

									      except:

									        traceback.print_exc()

									        continue

									      print message,cli_address

									      cli_address = address

									      if message == 'startCam':

									        print 'start camera',

									        is_sending = True

									        ser_socket.sendto('startRcv', cli_address)        

									      if message == 'quitCam':

									        is_sending = False

									        print 'quit camera',

									  def stop(self):

									    self.thread_stop = True

									if __name__=='__main__':

									  res = (640,480)

									  cam = Device()

									  cam.setResolution(res[0],res[1])

									  brightness = 1.0

									  contrast = 1.0

									  shots = 0

									  receiveThread = UdpReceiver()

									  receiveThread.setDaemon(True)      # 该选项设置后使得主线程退出后子线程同时退出

									  receiveThread.start()

									  while 1:

									    if is_sending: 

									      camshot = ImageEnhance.Brightness(cam.getImage()).enhance(brightness)

									      camshot = ImageEnhance.Contrast(camshot).enhance(contrast)

									      clock = pygame.time.Clock()

									      img = cam.getImage().resize((160,120))

									      data = img.tostring()

									      ser_socket.sendto(data, cli_address) 

									      time.sleep(0.05) 

									    else:

									      time.sleep(1)

									  receiveThread.stop()

									  ser_socket.close()

客户端:
主要功能是像服务器端发送指令,然后接受服务器所发送过来的数据并通过pygame模块来显示出来.

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									# -*- coding: UTF-8 -*-

									import socket, time

									import pygame

									from pygame.locals import *

									from sys import exit

									# 服务器地址，初始化socket

									ser_address = ('localhost', 10218)

									cli_socket = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)

									# 设置超时

									cli_socket.settimeout(5)

									# 向服务器发送消息，并判断接收时是否超时，若超时则重发

									while 1:

									  cli_socket.sendto('startCam', ser_address)

									  try:

									    message, address = cli_socket.recvfrom(2048)

									    if message == 'startRcv':

									      print message

									      break

									  except socket.timeout:

									    continue

									cli_socket.recvfrom(65536)

									# 初始化视频窗口

									pygame.init()

									screen = pygame.display.set_mode((640,480))

									pygame.display.set_caption('Web Camera')

									pygame.display.flip()

									# 设置时间，可以用来控制帧率

									clock = pygame.time.Clock()

									# 主循环，显示视频信息

									while 1:

									  try:

									    data, address = cli_socket.recvfrom(65536)

									  except socket.timeout:

									    continue

									  camshot = pygame.image.frombuffer(data, (160,120), 'RGB')

									  camshot = pygame.transform.scale(camshot, (640, 480))

									  for event in pygame.event.get():

									    if event.type == pygame.QUIT:

									      cli_socket.sendto('quitCam', ser_address)

									      cli_socket.close()

									      pygame.quit()

									      exit()

									  screen.blit(camshot, (0,0))

									  pygame.display.update() 

									  clock.tick(20)