我是否可以使用ffmpeg将jpgs输出到python中的numpy数组，而无需将文件写入磁盘等？

import subprocess
import numpy as np

def jpgs_to_numpy(jpg_files):
    command = ['ffmpeg', '-i', 'pipe:', '-f', 'image2pipe', '-vcodec', 'rawvideo', '-pix_fmt', 'rgb24', '-']
    ffmpeg_process = subprocess.Popen(command, stdin=subprocess.PIPE, stdout=subprocess.PIPE)

    numpy_array = []
    for jpg_file in jpg_files:
        with open(jpg_file, 'rb') as f:
            ffmpeg_process.stdin.write(f.read())

        frame_width = 640  # 设置图像宽度
        frame_height = 480  # 设置图像高度
        frame_size = frame_width * frame_height * 3  # 计算图像大小
        raw_image = ffmpeg_process.stdout.read(frame_size)
        numpy_array.append(np.frombuffer(raw_image, dtype='uint8').reshape((frame_height, frame_width, 3)))

    ffmpeg_process.stdin.close()
    ffmpeg_process.stdout.close()
    ffmpeg_process.wait()

    return numpy_array