【Python】保存文件夹下所有视频文件的每一帧

import cv2
import os

video_path = './video'
out_frame_path = os.path.join(os.path.dirname(os.path.abspath(__file__)), 'frame_output')
if not os.path.exists(out_frame_path):
    os.makedirs(out_frame_path)
print('out_frame_path', out_frame_path)
files = []
list = os.listdir(video_path)
print('list', list)
for i in range(len(list)):
    item = os.path.join(video_path, list[i])
    files.append(item)
print('files',files)
for k,file in enumerate(files):
    frame_dir = os.path.join(out_frame_path, '%d'%(k+1))
    if not os.path.exists(frame_dir):
        os.makedirs(frame_dir)
    cap = cv2.VideoCapture(file)
    j = 0
    print('start prossing NO.%d video' % (k + 1))
    while True:
        ret, frame = cap.read()
        if ret:
            cv2.imwrite(os.path.join(frame_dir, '%d.jpg'%j), frame)
            j += 1
        else:
            cap.release()
            break
    print('prossed NO.%d video'%(k+1))