convert ogg to mp3 with ffmpeg

ogg2mp3.py

import os, sys
import fnmatch
import subprocess
import multiprocessing
from multiprocessing.pool import ThreadPool

def iter_files(root, pattern):
  for root, dirs, files in os.walk(root):
    for f in files:
      if not fnmatch.fnmatch(f, pattern): continue

      yield root, f

def burn(x):
  infile = os.path.join(x[0], x[1])
  outfile = os.path.join(os.path.splitext(infile)[0], '.mp3')

  subprocess.call(["ffmpeg", "-i", infile, "-map_metadata", "0:s:0", "-b:a", "192k", outfile, "-y"])

def main():
  path = '.'
  if len(sys.argv) > 0:
    path = sys.argv[0]

  cpus = multiprocessing.cpu_count()

  #pool = multiprocessing.Pool(cpus)
  pool = ThreadPool(cpus)
  pool.map(burn, iter_files(path, '*.ogg'))

if __name__ == '__main__':
  main()