Recherche avancée

Sur d’autres sites (9053)

• adding text on video using ffmpeg drawtext working when running through commandprompt not working using java

  9 mars 2014, par Nikita

  I am adding the text using to the video using ffmpeg drawtext. when running the command through command prompt it works fine but when running it using process builder its not working neither getting any exception.

  Following is the java code

  • the input & ouput videopaths are coming as a parameters. ffmpegUrl
    is the path of ffmpeg in the system.

    String names = "Nikita Sahu" ;

    ProcessBuilder builder = new ProcessBuilder(ffmpegUrl," -y -i ",videoFile.getAbsolutePath()," -acodec libmp3lame -vcodec msmpeg4 -b:a 192k -b:v 1000k -ar 44100 -vf \"drawtext=text=",names,":expansion=normal:fontfile=",fontTypeFilePath,":y=h-line_h:x=h-(2*lh)-n:fontcolor=white:fontsize=24:box=0\" -an ",convertedVideoFile.getAbsolutePath());

  I am not able to find out what i am doing wrong.
  When printing the same on console & running through command prompt it works fine.
  Any help will be appreciated.

• 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 "Error setting GOP size" when converting from mp4 to ogg

  25 avril 2014, par gCardinal

  I built a little internal website to upload and convert videos using Symfony2, PHP-FFMPEG (via this bundle : https://github.com/pulse00/ffmpeg-bundle). It worked fine on my dev machine, a PC, but it refuses to work on my prod machine, a ubuntu server, outputting "[libtheora @ 0x17f7380] Error setting GOP size" whenever I run the command.

  Here is said command :

  ffmpeg -y -i url/to/input.mp4 -vcodec libtheora -acodec libvorbis -b:v 1000k -refs 6 -coder 1 -sc_threshold 40 -g 30 -flags +loop -me_range 16 -subq 7 -i_qfactor 0.71 -qcomp 0.6 -qdiff 4 -trellis 1 -b:a 128k url/to/output.ogg

  This is generated by PHP-FFMPEG so I don’t really have any control over it.

  I’ll admit that I don’t really understand ffmpeg, so my knowledge is limited, but I don’t see any -g parameter where it could be trying to set the GOP size and anyways, I’m guessing, if it worked on my dev, it should also work on the prod machine, right ?

  I figured I should maybe include an output of both ffmpeg versions : http://i.imgur.com/ec4MnKl.png

  I don’t feel like this is the source of the problem, but like I said, I know little about ffmpeg so it could be !

  Thanks a lot to anyone reading this and even more to those taking the time to answer :)

  Edit : I tried running the most basic command I could

  ffmpeg -i foo.mp4 foo.ogg

  And it outputs the same error. Again, with my limited knowledge, I’m starting to think my install of ffmpeg just can’t handle the ogg format. I’ll keep digging.