# Old way is MUCH slower
    # # https://superuser.com/questions/1250900/freeze-last-frame-of-a-video-with-ffmpeg
    # args = ['ffmpeg',
    #         '-f', 'lavfi',
    #         '-i', 'nullsrc=s=' + getRes(fVideoStream) + ':d=' + str(freeze_s),
    #         '-i', fVideoStream,
    #         '-filter_complex', '[0:v][1:v]overlay[video]',
    #         '-map', '[video]',
    #         '-shortest',
    #         fVideoStreamOut]
    #
    # subprocess.run(args, check=True)