#!/usr/bin/python
# -*- coding: utf-8 -*-

from subprocess import Popen
from os import waitpid
from sys import argv

def gain(format, song):
    format.append(song)
    process = Popen(format)
    finish = waitpid(process.pid, 0)

audio_dateien = argv[1:]

while len(audio_dateien) != 0:
    song = audio_dateien.pop()
    if song[-4:] == '.mp3':
        format = ['mp3gain', '-r']
        gain(format, song)
    elif song[-4:] == '.ogg':
        format = ['vorbisgain', '-a']
        gain(format, song)

Popen(['zenity'] + ['--info'] + ['--text'] + ['Skript abgearbeitet!'])