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• Getting FFProbe Information With Python

  5 septembre 2012, par Robin Hood

  I've been attempting to figure this out for forever now (I'm new to programming) and I can't figure it out.

  I'm attempting to build a script that will test the file, and give me output from which I can get information like "Audio Format" that I can then put into the filename. However, I can't even get the script to return any file info. I've hit a wall at inserting an input file...

  So at this point I just need help getting it to spit out info based on the argvs I've thrown in. Hopefully I'll be able to figure out how to parse the audio info from that.

  My attempt that seems to be close :

  #!/usr/bin/python
  
  import os, sys, subprocess, shlex, re
  
  from subprocess import call
  
  def probe_file(filename):
  
      p = subprocess.Popen(['/opt/local/bin/ffprobe', '-show_format', '-pretty', '-loglevel quiet', -i filename], stdin=subprocess.PIPE, stdout=subprocess.PIPE, stderr=subprocess.PIPE, shell=True)
  
      print filename
  
      print p.communicate()
  
  [probe_file (f) for f in os.listdir('.') if not f.startswith('.')]

• avformat/matroskadec : Typos, nits and cosmetics

  17 mai 2019, par Andreas Rheinhardt

  avformat/matroskadec : Typos, nits and cosmetics
  Cosmetics include reordering EbmlType so that EBML_SINT is adjacent to
  
  the other numbers (and matches the order in the switch in ebml_parse)
  
  and also reordering the switch for assignment of default values so that
  
  it matches the order in EbmlType.
  Signed-off-by : Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
  

  • [DH] libavformat/matroskadec.c

• ffmpeg thumbnails in equal intervals

  29 juin 2013, par user2392940

  my current code

  $file= "C:/wamp/www/as.mp4"; 
  
  $ffmpeg = "C:/wamp/bin/ffmpeg/bin/ffmpeg";
  
  
  
  ob_start();
  
  passthru("$ffmpeg -i ".$file." 2>&1");
  
  $duration = ob_get_contents();
  
  ob_end_clean();
  
  
  
  $search='/Duration: (.*?)[.]/';
  
  $duration=preg_match($search, $duration, $matches, PREG_OFFSET_CAPTURE);
  
  $duration = $matches[1][0];
  
  list($hours, $mins, $secs) = preg_split('[:]', $duration);
  
  $totaltime = $secs+($mins*60)+($hours*3600);
  
  
  
  $percent = round($totaltime/12); 
  
  
  
  exec ("$ffmpeg -i $file -threads 1 -b 64k -f image2 -s 220x180 -vf fps=fps=1/$percent img%03d.jpg");

  This code works perfectly if the total time/12 remainder is equal to or less than 60 seconds. The goal here is to make 12 thumbnails in equal intervals but ffmpeg will not allow more than 1 frame per 60 seconds any suggestions ?

  Thanks