Python设置Socket代理及实现远程摄像头控制的例子

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()

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() 

# -*- 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)