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• ImportError : No module named 'pydub'

  28 janvier, par ensminger

  I am creating a simple script that will use pydub to fetch files from a directory based on their name, then stitch a few of them together and export the result.

  



  I had the script working great in a Windows environment (Win 7, python 3.4), but now I'm trying to run on OSX.

  



  I have installed all necessary components - ffmpeg, libav. I have just installed pydub with pip, pulling directly from github.

  



  My file starts with the input statement from pydub import AudioSegment, and this is what I get :

  



  Traceback (most recent call last):&#xA;  File "functions.py", line 2, in <module>&#xA;    from pydub import AudioSegment&#xA;ImportError: No module named &#x27;pydub&#x27;&#xA;</module>

  



  Thoughts ? What am I missing ? Any help is greatly appreciated !

  


• ImportError : No module named 'pydub'

  19 septembre 2015, par queuetheory

  I am creating a simple script that will use pydub to fetch files from a directory based on their name, then stitch a few of them together and export the result.

  I had the script working great in a Windows environment (Win 7, python 3.4), but now I’m trying to run on OSX.

  I have installed all necessary components - ffmpeg, libav. I have just installed pydub with pip, pulling directly from github.

  My file starts with the input statement from pydub import AudioSegment, and this is what I get :

  Traceback (most recent call last):
  
    File "functions.py", line 2, in <module>
  
      from pydub import AudioSegment
  
  ImportError: No module named 'pydub'
  
  </module>

  Thoughts ? What am I missing ? Any help is greatly appreciated !

• How do I get the last line of a popen() callback in every iteration ?

  29 mai 2017, par Mike

  I’m trying to create a progress bar with FFMPEG using php and AJAX. When a user uploads a video file I want to be able to display the current percent until completion. I have managed to get everything working but I have one issue.

  The data returns what I want, but it also returns all the data from the previous iterations... like it just keeps stacking everything on top rather than flushing out the data from previous iterations. I tried to work with tail thinking it would return only the last line, but it did not return anything.

  Here is the code I’m working with :

  encode.php

  $video_path = 'test.mp4';
  
  $cmd        = 'ffmpeg -i ' . $video_path .' -y -hide_banner output.mp4 2>&1';
  
  
  
  while (@ ob_end_flush());
  
  
  
  $proc = popen($cmd, 'r');
  
  
  
  while (!feof($proc))
  
  {
  
  
  
      $file = escapeshellarg(fread($proc, 4096));
  
      //$line = `tail -n 1 $file`; // <-tried this with no luck
  
      echo fread($file, 4096) . "\n";
  
      @ flush();
  
  }
  
  return 'complete';
  
  pclose($proc);

  The above code returns :

  // first iteration
  
  frame=   52 fps= 13 q=29.0 size=     279kB time=00:00:00.10 bitrate=22856.9kbits/s
  
  
  
  // second iteration
  
  frame=   52 fps= 13 q=29.0 size=     279kB time=00:00:00.10 bitrate=22856.9kbits/s    
  
  frame=   54 fps= 12 q=29.0 size=     329kB time=00:00:00.16 bitrate=16146.6kbits/s 
  
  
  
  // third iteration
  
  frame=   52 fps= 13 q=29.0 size=     279kB time=00:00:00.10 bitrate=22856.9kbits/s    
  
  frame=   54 fps= 12 q=29.0 size=     329kB time=00:00:00.16 bitrate=16146.6kbits/s    
  
  frame=   57 fps= 11 q=29.0 size=     464kB time=00:00:00.26 bitrate=14233.2kbits/s 

  As you can see the data stacks, I need only the new line of data, not the data stacking.

  ** EDIT ** this has been marked as a duplicate, rather than me explain how it’s different, I’d like to hear how this is the same thing ? I am not writing to a log file and, like most people, do not feel that’s a good solution.