Batch resize mp4 files down to 100M or below using FFmpeg

ResizeVideo.py

import glob
import os
import sys

def get_all_mp4s(folder):
    pattern = folder + '/**/*.mp4'
    files = glob.glob(pattern, recursive=True)
    return files

def convert(files):
    cmd = "ffmpeg.exe"
    for f in files:
        src = os.path.normpath(f)
        size = os.path.getsize(src);
        if size >= 100 * 1024 * 1024:
            target = src[:-4] + '_2' + src[-4:]
            args = f' -i \"{src}\" -fs 100M \"{target}\"'
            print("------------------------------\n")
            os.system(f'{cmd}{args}')
            os.replace(target, src)
            print(f"---------- Done for {src}\n")

if __name__ == '__main__':
    folder = ' '.join(sys.argv[1:])
    # folder = sys.argv[1]
    files = get_all_mp4s(folder)
    convert(files)

# python main.py your/folder/directory/here