Check whether a video file has been corrupted

checkvideo.py

# original command adapted from https://superuser.com/a/100290
import subprocess

filename = ...

try:
    _ = subprocess.check_call(['ffmpeg', '-v', 'error', '-i',
                               filename, '-f', 'null', '-'])
except subprocess.CalledProcessError:
    # the subprocess call returns non-zero, which means filename
    # has been corrupted;
    # do whatever you want to do here
    pass