minify.py

import glob2
import os
import re
from shutil import copyfile

fileregex = r'.*\.(avi|mp4|mkv)$'
srtregex = r'.*\.(srt)$'

def ffmpeg(filename):
    file = os.path.abspath(filename)
    if os.path.isfile(file) and re.match(fileregex, filename):
        relfile = os.path.relpath(filename, os.path.abspath('./Source'))
        newfilename = re.sub(r'\.(avi|mp4|mkv)$', '.mp4', relfile)
        newfile = os.path.abspath(os.path.join(os.path.abspath("./Target"), newfilename))
        newdir = os.path.dirname(newfile)
        if not os.path.exists(newdir):
            os.makedirs(newdir)
        if not os.path.exists(newfile):
            os.system('ffmpeg -i "' + file + '" -codec:v libx264 -vf "scale=-2:480" "' + newfile + '"')
            pass
    elif re.match(srtregex, filename):
        relfile = os.path.relpath(filename, os.path.abspath('./Source'))
        newfile = os.path.abspath(os.path.join(os.path.abspath("./Target"), relfile))
        newdir = os.path.dirname(newfile)

        if not os.path.exists(newdir):
            os.makedirs(newdir)

        copyfile(file, newfile)
    else:
        print(filename)

for filename in glob2.glob('./Source/**/*'):
    ffmpeg(filename)