IPython.display 视频在尝试运行先前绘图的动画时给出无法播放的“空”视频（使用 ffmpeg）

问：

我正在为一个班级做一个陨石坑模拟项目，在制作视频时遇到了问题。一般项目是让我们模拟一个被陨石坑撞击的表面，直到它变得饱和。但是，代码可以工作，如果我打印出模拟中的每个图形，它将是数千个图形，直到到达 sat，然后我必须手动将它们全部剪辑在一起。为了规避这个问题，我想把所有的图表都放到动画中。然而，我甚至不知道从哪里开始。

作为参考，这里是主代码块：

import matplotlib.pyplot as plt
import numpy as np
import math
import os
import matplotlib.animation as ani

#I have removed the definitions and class implementation for sake of simplicity and space

ani.writers.list()
FFMpegWriter = ani.writers['ffmpeg']
writer = FFMpegWriter(fps = 10)
fig = plt.gcf()
figure = plt.figure()
fig.patch.set_alpha(1.0)

with writer.saving(figure, "sine.mp4", 150):
    while sat_counter !=1:#while loop that will introduce new crater each iteration

        new_crater = generate_crater()
        new_crater.age = sat_counter
        random_crater_list.append(new_crater)

        i =0

        while i < len(random_crater_list):#looping through the crater list and comparing new crater to all others


            old_crater = random_crater_list[i]


            overlap = square_overlap(old_crater, new_crater)#checks if old crater should be covered/removed by new crater
          

            if overlap == True:
                    random_crater_list.remove(old_crater)
                    i=i-1

                    
            else:
                pass

            i=i+1

        sat = Saturation(random_crater_list)# checks the saturation of the graph and returns a a number between 0 and 100
        if sat > 90:
            sat_counter = 1#base condition used to break the while loop

        writer.grab_frame()
plot_craters(random_crater_list)                   

这是最终图形的饱和表面的样子

我尝试使用 IPython.display 视频：

Video("sine.mp4", embed = True, width = 320, height = 320)

但是，这会加载一个无法播放的空视频。空视频