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• Android ffmpeg lib has no runnable permission

  30 mai 2014, par peliken

  I have an app that works with ffmpeg library. There are free and full version. Both version
  works fine, but after upload them to google play and then install from it full version begin says "java.io.IOException: Error running exec() Working Directory: null" when I try to use ffmpeg.
  I root my device to check libraries (libffmpeg.so) in app folder and I found that in free version library has
  -rwxr-xr-x permission that is normal but full version library has -rw-r--r-- permission that is read only.
  If I install app without google play from my apk’s all works fine.

• Evolution #2746 : Multilinguisme par secteur : manque d’ergonomie

  9 décembre 2015, par Guillaume Fahrner

  "Par ailleurs, quid du déplacement d’un article d’une rubrique en français dans l’anglaise ? ça change ça langue par héritage ?"
  Oui, idem pour n’importe quel objet, rubrique comprise (sauf les secteurs) :-)

  "Donc, il FAUT pouvoir changer la langue sur une base qui n’est pas saine au départ."

  Plusieurs solutions sans rien changer :
  - la langue est MAJ lors de l’édition d’un objet et est définie par héritage (pose le problème de la mise à jour de la date)
  - client mysql pour faire ca @mano

• subprocess.py returns a File Not Found error

  7 avril 2021, par wasneeplus

  As part of a video analysis script I wanted to find the duration of a video file. For this I found the script offered in the first answer to this question : How to get the duration of a video in Python ?

  


  import subprocess

def get_length(filename):
    result = subprocess.run(["ffprobe", "-v", "error", "-show_entries",
                             "format=duration", "-of",
                             "default=noprint_wrappers=1:nokey=1", filename],
        stdout=subprocess.PIPE,
        stderr=subprocess.STDOUT)
    return float(result.stdout)


  


  This code works fine when my friend runs it in a Jupyter server environment, but when I try it on my laptop the trouble starts.

  


  When I imput the following filename into the function :

  


  filename = "C:\\Users\\benja\\OneDrive - De Haagse Hogeschool\\Onderzoeken 3\\8V.mp4"


  


  I get the following error :

  


      Traceback (most recent call last):&#xA;  File "c:/Users/benja/OneDrive - De Haagse Hogeschool/Onderzoeken 3/python_script.py", line 9, in <module>&#xA;    num_of_frames = math.floor((pf.get_length(filename) - 1)) * 30&#xA;  File "c:\Users\benja\OneDrive - De Haagse Hogeschool\Onderzoeken 3\python_funcs.py", line 21, in get_length&#xA;    stderr=subprocess.STDOUT)&#xA;  File "C:\Users\benja\Anaconda3\lib\subprocess.py", line 466, in run&#xA;    with Popen(*popenargs, **kwargs) as process:&#xA;  File "C:\Users\benja\Anaconda3\lib\subprocess.py", line 769, in __init__&#xA;    restore_signals, start_new_session)&#xA;  File "C:\Users\benja\Anaconda3\lib\subprocess.py", line 1172, in _execute_child&#xA;    startupinfo)&#xA;FileNotFoundError: [WinError 2] Het systeem kan het opgegeven bestand niet vinden&#xA;</module>

  


  I do realise that my problem is almost identical to that of several other questions on here. However, their solutions don't seem to work for me. I have tried to :

  


  

  • Add the location of ffmpeg-win64-4.2.2.exe to the Path system variable.

  


  • Add the location of python.exe to the ComSpec system variable.

  


  • Put the videofile in the same directory as the script.

  


  


  I would be most grateful if someone could point me in the right direction. Thank you in advance.