Python设置Socket代理及实现远程摄像头控制的例子
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
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.
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.
# -*- 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)
客户端就是简单地向服务器发送启动消息,接收到回复后开始进入主循环开始接收视频数据并显示。
由于UDP协议不保证信息是否成功到达,因此前面设置了个重发机制,只有当客户端收到服务器的回复后,才停止发送开启消息并进入主循环.具体见注释.
使用时将localhost改成服务器IP即可.
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