scratch/extract_last_frame.py

import ffmpeg
(
    ffmpeg
    .input("scratch/tmp/studio_output.mp4", ss=4.0)
    .filter('scale', 200, -1)
    .output("scratch/tmp/frame_last.jpg", vframes=1)
    .overwrite_output()
    .run(quiet=True)
)
print("Last frame extracted")