Mirror incremental files for ffmpeg

mirror.py

from pathlib import Path
from shutil import copy 
# find all the jpg images in this dir (000.jpg, 001.jpg, ...)
paths = list(Path('./').glob('*.jpg'))
pathnames = sorted([p.stem for p in paths])
maxcount = int(pathnames[-1]) * 2 + 1  # get the new max cont
for path in paths:
    i = int(path.stem)
    copy(str(path), str(Path('./') / '{:03d}.jpg'.format(maxcount - i)))