set -a mkdir -p frames ffmpeg \ -i rickroll.mp4 \ -vf 'scale=320:192,framerate=60000/1001' \ -an \ -y 'frames/rickroll-%04d.png' ffmpeg \ -i rickroll.mp4 \ -vn \ -ac 1 \ -ar 15734 \ -acodec pcm_u8 \ -y 'rickroll-audio.wav'