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• Is there a fix for the 'flashing console' bug with FFMPEG ?

  29 août 2022, par NedNoodleHead

  When using a compiled a program that utilizes FFMPEG (Not library, but the path to the exe), and a GUI library ; that has a function that uses FFMPEG, a console window from FFMPEG will quickly open and disappear.

  


  I have a github repo that can be used to reproduce the bug : https://github.com/nednoodlehead/ffmpegthreading

  


  I also have a quick youtube video showing what the bug looks like, and what it should look like : https://www.youtube.com/watch?v=tCZ0z9E5Iyw

  


  A few things to note with this :

  


  1). This will only occur when the app is compiled. Running this in a virtual environment works as expected. I run it from my IDE all the time with no console flashing. (as seen in video)

  


  2). It will only flash while a GUI is present. So using a regular script to call the same command that produces the bug will NOT cause the bug

  


  3). The bug was tested in Tkinter and PyQt5 and produced the same result (flashing console)

  


  4). Threading is NOT needed to reproduce this bug, it just makes the debugging a bit easier

  


  5). Using the ffmpeg module does not work as my entire project is based around an interface for PyDub (Which uses ffmpeg)

  


  6). This solution does not work for me : How to hide console output of FFmpeg in Python ? (Because this uses the module, while I use the exe)

  


  7). I am using auto-py-to-exe to compile (which uses pyinstaller)

  


  8). Running 'ffmpeg -version' (in regular cmd (same result in venv)) gives : ffmpeg version N-106605-gf67403edb3-20220413

  


  I would appreciate any help, this is tying my brain up.

  


• youtube-dl python script postprocessing error : FFMPEG codecs aren't being recognized

  23 septembre 2016, par stackPusher

  My python script is trying to download youtube videos with youtube-dl.py. Works fine unless postprocessing is required. The code :

  import youtube_dl
  
  
  
  options = {
  
      'format':'bestaudio/best',
  
      'extractaudio':True,
  
      'audioformat':'mp3',
  
      'outtmpl':'%(id)s',     #name the file the ID of the video
  
      'noplaylist':True,
  
      'nocheckcertificate':True,
  
      'postprocessors': [{
  
          'key': 'FFmpegExtractAudio',
  
          'preferredcodec': 'mp3',
  
          'preferredquality': '192',
  
      }]
  
  }
  
  
  
  with youtube_dl.YoutubeDL(options) as ydl:
  
      ydl.download(['http://www.youtube.com/watch?v=BaW_jenozKc'])

  Below is the output I receive :

  I get a similar error if I try setting ’preferredcodec’ to ’opus’ or ’best’.
  I’m not sure if this is relevant, but I can run the command line counterpart fine :

  youtube-dl -o 'test2.%(ext)s' --extract-audio --audio-format mp3 --no-check-certificate https://www.youtube.com/watch?v=BaW_jenozKc

  I’ve gotten a few clues from the internet and other questions and from what i understand this is most likely an issue with my ffmpeg, which isn’t a python module right ? Here is my ffmpeg version and configuration :
  

  If the answer to my problem is to add some configuration setting to my ffmpeg please explain how i go about doing that.

• How to run a python code via Django templates ?

  18 novembre 2018, par Iskender Berdiev

  I want to execute code below when the is submitted (project on Django) :

  from os import system, listdir, remove
  
  link = 'https://www.youtube.com/watch?v=ME9yO1KEVoo'
  
  
  
  def download(): ## Downloading a video from YouTube using youtube-dl
  
      system("youtube-dl -o download {}".format(link))
  
  
  
  def convert():  ## Converting downloaded video to mp3 format via ffmpeg.exe(same directory)
  
      listOfFiles = listdir('.')
  
      for i in listOfFiles:
  
          if i.startswith("download"):
  
              name = i
  
              system("ffmpeg -i {} download.mp3".format(name))
  
  
  
  def main():
  
      download()
  
      convert()
  
  
  
  main()

  I have tried to put this code into views.py :

  class download(TemplateView):
  
      def main(request):
  
          if request.method == 'POST':
  
              link = 'https://www.youtube.com/watch?v=ME9yO1KEVoo'
  
              system("youtube-dl -o download {}".format(link))
  
              listOfFiles = listdir('.')
  
              for i in listOfFiles:
  
                  if i.startswith("download"):
  
                      name = i
  
                      system("ffmpeg -i {} download.mp3".format(name))
  
          return redirect ('loader/wait.html')

  urls.py :

  path('wait/', views.download.as_view(), name='wait')

  and the html form which is submitted to run views.download.as_view() :

  <form action="{% url " method="POST">{% csrf_token %}
  
  <input type="submit" value="Yes" />
  
  </form>