Recherche avancée

Sur d’autres sites (5935)

• Merge remote-tracking branch ’cus/stable’

  2 avril 2014, par Michael Niedermayer

  Merge remote-tracking branch ’cus/stable’
  * cus/stable :
  
    mpeg12enc : always set closed gop flag on the first gop
  
    mpeg12enc : always write closed gops for intra only outputs
  Merged-by : Michael Niedermayer <michaelni@gmx.at>
  

  • [DH] libavcodec/mpeg12enc.c
  • [DH] tests/ref/lavf/ffm
  • [DH] tests/ref/lavf/gxf
  • [DH] tests/ref/lavf/mpg
  • [DH] tests/ref/lavf/mxf
  • [DH] tests/ref/lavf/mxf_d10
  • [DH] tests/ref/lavf/ts
  • [DH] tests/ref/lavf/wtv
  • [DH] tests/ref/vsynth/vsynth1-mpeg1
  • [DH] tests/ref/vsynth/vsynth1-mpeg1b
  • [DH] tests/ref/vsynth/vsynth1-mpeg2
  • [DH] tests/ref/vsynth/vsynth1-mpeg2-422
  • [DH] tests/ref/vsynth/vsynth1-mpeg2-idct-int
  • [DH] tests/ref/vsynth/vsynth1-mpeg2-ilace
  • [DH] tests/ref/vsynth/vsynth1-mpeg2-ivlc-qprd
  • [DH] tests/ref/vsynth/vsynth1-mpeg2-thread
  • [DH] tests/ref/vsynth/vsynth1-mpeg2-thread-ivlc
  • [DH] tests/ref/vsynth/vsynth2-mpeg1
  • [DH] tests/ref/vsynth/vsynth2-mpeg1b
  • [DH] tests/ref/vsynth/vsynth2-mpeg2
  • [DH] tests/ref/vsynth/vsynth2-mpeg2-422
  • [DH] tests/ref/vsynth/vsynth2-mpeg2-idct-int
  • [DH] tests/ref/vsynth/vsynth2-mpeg2-ilace
  • [DH] tests/ref/vsynth/vsynth2-mpeg2-ivlc-qprd
  • [DH] tests/ref/vsynth/vsynth2-mpeg2-thread
  • [DH] tests/ref/vsynth/vsynth2-mpeg2-thread-ivlc

• 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 ?

• ffmpeg libraries turn off buffer

  12 août 2014, par Артем Суслов

  I’m trying to create an application for ios which receives rtsp frames from ip camera. But when I suspend my main thread (for example, minimize my application) and resume it after some time, I see what I read old frame. I think that ffmpeg library create new thread somewhere which fill some buffer with frames. So how can I turn that buffer off ? I suppose that I don’t need that buffer because I use rtsp over tcp.
  I know that I can handle events which suspend my ios app(disconnect and connect to camera, for example) but I need to know how to receive frames without buffering to avoid future problems.
  And I tried to use flag AVFMT_FLAG_NOBUFFER but it did not help.
  I use ffmpeg 2.3.
  Thanks

  PS

  Probably there in no away to turn this internal buffer off but how I can restrict it ? To 1 or 2 frames (or seconds). I tried a lot of variants and have no idea what to do.