new_contents: #!/usr/bin/env python
  from __future__ import unicode_literals, print_function
  import argparse
  import ffmpeg
  import sys
  
  
  parser = argparse.ArgumentParser(description='Get video information')
  parser.add_argument('in_filename', help='Input filename')
  
  
  if __name__ == '__main__':
      args = parser.parse_args()
      probe = ffmpeg.probe(args.in_filename)
      video_info = next((stream for stream in probe['streams'] if stream['codec_type'] == 'video'), None)
      if video_info is None:
          print('No video stream found', file=sys.stderr)
          sys.exit(1)
  
      width = int(video_info['width'])
      height = int(video_info['height'])
      num_frames = int(video_info['nb_frames'])
      print('width: {}'.format(width))
      print('height: {}'.format(height))
      print('num_frames: {}'.format(num_frames))
  
subject: Add video_info example