Подскажите про программное создание анимаций

import os, cairo, subprocess as sp
from math import *

# params
project_name = 'bouncing_ball'
width, height, frames, fps = 800, 600, 500, 60

# surface init
surface = cairo.ImageSurface(cairo.FORMAT_ARGB32, width, height)
c = cairo.Context(surface)
# move origin to lower left corner; scale coordinates to [0..1] range
c.translate(0, height)
c.scale(max(width, height), -max(width, height))

# output init: lossless qtrle in mov container
ffmpeg_cmd = f'''ffmpeg -f rawvideo -video_size {width}x{height} 
                -pixel_format bgra -framerate {fps} -i - 
                -c:v qtrle {project_name}.mov -y
              '''.strip().split()
# run encoding subprocess
ffmpeg = sp.Popen(ffmpeg_cmd, stdin=sp.PIPE)

for frame in range(frames):
    # clear surface
    c.set_source_rgb(0, 0, 0)
    c.paint()
    # compute ball position
    ball_radius = 0.05
    x = frame / (frames - 1)
    y = height/width * exp(-x*1.5) * abs(cos(x*3*exp(x*1.3))) + ball_radius*1.03
    # draw ball
    c.arc(x, y, ball_radius, 0, 2*pi)
    c.set_source_rgba(0, 0.7, 1, 1)
    c.fill()
    # draw flare
    flare_radius = 0.005
    c.arc(x - 0.02, y + 0.02, flare_radius, 0, 2*pi)
    c.set_source_rgba(1, 1, 1, 1)
    c.fill()
    # encode a frame
    ffmpeg.stdin.write(surface.get_data())

$ python bouncing_ball.py && ffplay bouncing_ball.mov