Rename MP4 files based on embedded creation time tag

gistfile1.txt

import os
import datetime
import glob
import subprocess
import json

def get_creation_time(f):
    rinfo = subprocess.check_output('ffprobe -print_format json -hide_banner -show_format -i "%s"' % f, shell=True, stderr=subprocess.DEVNULL)
    info = json.loads(rinfo.decode())
    ctime = info['format']['tags']['creation_time']
    return datetime.datetime.fromisoformat(ctime[:19])
    

for f in glob.glob('*.mp4'):
    t = get_creation_time(f)
    new_name = f'{t.isoformat(" ").replace(":", ".")}.mp4'
    print(f, new_name, t)
    if f != new_name:
        os.rename(f, new_name)