fm spectrum mirror.py

import ffmpeg

input = ffmpeg.input('fm spectrum.mp4')

def f():
    a = input.audio
    v = input.video
    
    height = 250
    
    v = v.crop(x=0, width="in_w", height=height, y=f"in_h-{height}")

    vs = v.split()
    v = vs.stream(0)
    v1 = vs.stream(1)
    
    v = v.filter("pad", h="2*in_h").overlay(v1.vflip(), y="overlay_h")
    
    return (a, v)

out = ffmpeg.output(*f(), 'fm spectrum out.mp4', acodec="copy")
print(out.get_args())
out.run(overwrite_output=True)