Simple script to remerge soundfiles

import subprocess, shlex, re

if __name__ == '__main__':
    file = input("Filename:").replace('"','')
    info = re.search(r'(.+)\[sound=(\S+\.(\S+))\]', file, flags=re.I)
    original_name = info.group(1).strip()
    url = info.group(2).replace("%2F","/").replace("%3A",":")
    if not re.match("http", url):
        url = "https://" + url
    sound_ext = info.group(3)
    if sound_ext in ['ogg', 'opus', 'webm']:
        a_codec = "copy"
    else:
        a_codec = "libopus"
    subprocess.run(shlex.split(r'ffmpeg.exe -i "' + file + r'" -i "' + url + r'" -c:v copy -c:a ' + a_codec + r' -y "' + original_name + r'.webm"'))