Moviepy and FFMPEG Example

example.py

import matplotlib.pyplot  as plt
import matplotlib
import numpy as np
import moviepy
from moviepy.editor import VideoClip
from moviepy.video.io.bindings import mplfig_to_npimage

x = np.linspace(-5,5,100)
fig, ax = plt.subplots(figsize=(12,8))
line = ax.plot(x, x**2 + np.cos(5 * x))[0]

N = 180
duration = 3
fps = N // duration

def make_frame(t):
    i = int(t * fps)
    line.set_ydata(x**2 + np.cos(5 * (x + 2 * np.pi * t / duration / 5)))
    return mplfig_to_npimage(fig)

animation = VideoClip(make_frame, duration=duration)
animation.write_videofile('video.mp4', fps=fps, codec='libx264')

#ffmpeg -i input.mp4 -c:v libx264 -movflags +faststart  -vf scale=-2:1080,format=yuv420p  -crf 28 -ss 00:01:27 -t 00:01:00 output.mp4