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• Revision 6e5e75fa21 : Revert "Removing redundant variables from variance_test.cc." This reverts commi

  8 mai 2014, par James Zern

  Changed Paths :
   Modify /test/variance_test.cc

  
  
  Revert "Removing redundant variables from variance_test.cc."

  This reverts commit 4725ab7e51a69bf890856e524c6d78aadd97d64e.

  The constants are necessary to avoid breakage in vs9 builds :
  warning C4180 : qualifier applied to function type has no meaning ; ignored
  error C2436 : ’f2_’ : member function or nested class in constructor initializer
  list
  while compiling class template member function
  ’std::tr1::tuple::tuple(const int &,const int
  &,unsigned int (__cdecl &))’
  ..\test\variance_test.cc : see reference to class template instantiation
  ’std::tr1::tuple’ being compiled

  Change-Id : Ia218b74fc473d40f02fee84cb7009adfbe82e5a7

• Python ThreadedTCPServer : "Name or service not known"

  11 avril 2014, par Hal

  I was developing a ThreadedTCPServer to communicate with a PHP application also residing in this same machine. This is suppose to receive requests from this PHP app and to convert some videos locally using ffmpeg.

  Here's the code :

  # -*- coding: utf-8 -*- 
  
  import os
  
  import socket
  
  import threading
  
  import logging.config
  
  import SocketServer, time
  
  from queuev2 import QueueServer
  
  
  
  logging.basicConfig(format='[%(asctime)s.%(msecs).03d] %(message)s', datefmt='%Y-%m-%d %H:%M:%S', filename=os.path.join(os.path.dirname(os.path.realpath(__file__)), 'converter.log'), level=logging.INFO)
  
  
  
  class ThreadedTCPRequestHandler(SocketServer.BaseRequestHandler):
  
  
  
      def handle(self):
  
          data = self.request.recv(1024)
  
          cur_thread = threading.current_thread()
  
          response = "{}: {}".format(cur_thread.name, data)
  
          videoPool.add(data)
  
          print "Output! %s" % data
  
          self.request.sendall(response)
  
  
  
  class ThreadedTCPServer(SocketServer.ThreadingMixIn, SocketServer.TCPServer):
  
      pass
  
  
  
  if __name__ == "__main__":
  
  
  
      logging.info("Initializing...")
  
      videoPool = QueueServer()
  
      HOST, PORT = "localhost", 6666
  
  
  
      server = ThreadedTCPServer((HOST, PORT), ThreadedTCPRequestHandler)
  
      ip, port = server.server_address
  
  
  
      # Start a thread with the server -- that thread will then start one
  
      # more thread for each request
  
      server_thread = threading.Thread(target=server.serve_forever)
  
  
  
      # Exit the server thread when the main thread terminates
  
      server_thread.daemon = True
  
      server_thread.start()
  
  
  
      print("Server loop running in thread: %s" % server_thread.name)
  
  
  
      # "Groundhog day" time
  
      while True:
  
          time.sleep(999)
  
          pass
  
  
  
      #server.shutdown()

  This works well in my development laptop, but on the server i'm getting the following error :

  Traceback (most recent call last):
  
    File "server.py", line 31, in <module>
  
      server = ThreadedTCPServer((HOST, PORT), ThreadedTCPRequestHandler)
  
    File "/usr/lib/python2.7/SocketServer.py", line 408, in __init__
  
      self.server_bind()
  
    File "/usr/lib/python2.7/SocketServer.py", line 419, in server_bind
  
      self.socket.bind(self.server_address)
  
    File "/usr/lib/python2.7/socket.py", line 224, in meth
  
      return getattr(self._sock,name)(*args)
  
  socket.gaierror: [Errno -2] Name or service not known
  
  </module>

  I'm guessing it has to do with the port I'm using (6666), but I've tried others and it hasn't been working. Would Unix Domain Sockets be of use here ? Can you give me an example ?

• "An attempt was made to load a program with an incorrect format"

  31 janvier 2014, par user2922938

  I work in visual studio 2008, when run the program this error is shown :

  $exception "Could not load file or assembly 'AForge.Video.FFMPEG,
  Version=2.2.5.0, Culture=neutral, PublicKeyToken=03563089b1be05dd' or one of its dependencies. An attempt was made to load a program with an incorrect format."

  using System;
  
  using System.Collections.Generic;
  
  using System.ComponentModel;
  
  using System.Data;
  
  using System.Drawing;
  
  using System.Linq;
  
  using System.Text;
  
  using System.Windows.Forms;
  
  using AForge.Video.FFMPEG;
  
  
  
  namespace WindowsFormsApplication9
  
  {
  
      public partial class Form1 : Form
  
      {        
  
          public Form1()
  
          {
  
              InitializeComponent();
  
          }
  
  
  
          private void button1_Click(object sender, EventArgs e)
  
          {
  
              VideoFileReader video = new VideoFileReader();
  
          }
  
      }
  
  }

  What is wrong with my program ?