无法使用PIL库创建屏幕录制的视频输出文件

import cv2
import numpy as np
from PIL import ImageGrab

# 设置视频编码器
fourcc = cv2.VideoWriter_fourcc(*'XVID')

# 设置视频输出文件名和参数
output_file = 'screen_recording.avi'
fps = 30.0
screen_size = (1920, 1080)

# 创建视频写入对象
video_writer = cv2.VideoWriter(output_file, fourcc, fps, screen_size)

while True:
    # 获取屏幕截图
    screen_img = ImageGrab.grab()

    # 将PIL图像转换为OpenCV图像
    frame = np.array(screen_img)
    frame = cv2.cvtColor(frame, cv2.COLOR_RGB2BGR)

    # 写入视频帧
    video_writer.write(frame)

    # 显示屏幕截图
    cv2.imshow('Screen Recording', frame)

    # 按下'q'键退出循环
    if cv2.waitKey(1) == ord('q'):
        break

# 释放资源
video_writer.release()
cv2.destroyAllWindows()