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• Evolution #3655 (Fermé) : Empêcher le scroll au chargement ajax avec la class "noscroll" pour les ...

  5 mai 2017, par Anonyme

  Appliqué par commit r23523.

• Could not initialize class org.bytedeco.javacpp.avutil version 1.3.2

  12 avril 2017, par Dmitry

  I know that this problem has been described there, there, there, there and there. But I don’t understand solution, because I use JavaCV 1.3.2 that include (fixed ?) version of FFmpeg 3.0.2-1.2. I tried to use fixed version of FFmpeg 3.0.2-1.2 from issue, but I have old error :

  Exception in thread "main" java.lang.NoClassDefFoundError: Could not initialize class org.bytedeco.javacpp.avutil
  
      at java.lang.Class.forName0(Native Method)
  
      at java.lang.Class.forName(Class.java:348)
  
      at org.bytedeco.javacpp.Loader.load(Loader.java:464)
  
      at org.bytedeco.javacpp.Loader.load(Loader.java:409)
  
      at org.bytedeco.javacpp.avformat$AVFormatContext.<clinit>(avformat.java:2719)
  
      at org.bytedeco.javacv.FFmpegFrameGrabber.startUnsafe(FFmpegFrameGrabber.java:391)
  
      at org.bytedeco.javacv.FFmpegFrameGrabber.start(FFmpegFrameGrabber.java:385)
  
      at Main.main(Main.java:12)
  
      at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
  
      at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
  
      at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
  
      at java.lang.reflect.Method.invoke(Method.java:498)
  
      at com.intellij.rt.execution.application.AppMain.main(AppMain.java:147)
  
  </clinit>

  My code :

  public static void main(String[] args) throws FrameGrabber.Exception {
  
      FrameGrabber frameGrabber = new FFmpegFrameGrabber("/1.mp4");
  
      CanvasFrame canvasFrame = new CanvasFrame("Test");
  
      frameGrabber.start();
  
      for(int i = 0; icode>

• Calling pkill to pause a process with subprocess inside a class in python suspends the python script

  31 mars 2017, par muammar

  I have a class that contains a "blocking method". Inside that method, I am listening to keys to perform some actions. The action in question is pkill. Below I am pasting it :

  def show_control(self, control):
  
      """docstring for control"""                                                                                                                           
  
      if control == True:        
  
          from mkchromecast.getch import getch, pause
  
  
  
          self.controls_msg()    
  
          try:                   
  
              while(True):       
  
                  key = getch()  
  
                  if(key == 'p'):     
  
                      if self.videoarg == True:
  
                          print('Pausing Casting Process...')
  
                          subprocess.call(['pkill', '-STOP', '-f', 'ffmpeg'])
  
                      ...

  It turns out that the ffmpeg process is paused, but the python script gets suspended ?. I don’t understand why that is the case. If one creates the same function in a regular script (not inside a class to be clearer) this does not happen. I have tried using multithreading and multiprocessing modules without success. What am I doing wrong ?. Thanks.