python实现批量视频分帧、保存视频帧

import os 
import cv2
 
videos_src_path = '/home/shao/violence_detection_code/Movies_Dataset/fights'
videos_save_path = '/home/shao/violence_detection_code/Movies_Dataset/fights_pic'
 
videos = os.listdir(videos_src_path)
videos.sort(key=lambda x:int(x[5:-4]))
 
i = 1
 
for each_video in videos:
 if not os.path.exists(videos_save_path + '/' + str(i)):
 os.mkdir(videos_save_path + '/' + str(i))
 each_video_save_full_path = os.path.join(videos_save_path,str(i))+'/'
 each_video_full_path = os.path.join(videos_src_path,each_video)
 cap = cv2.VideoCapture(each_video_full_path)
 frame_count = 1
 success = True
 
 while(success):
 success,frame = cap.read()
 if success==True:
 cv2.imwrite(each_video_save_full_path + "frame%d.jpg" % frame_count,
 frame)
 frame_count = frame_count + 1
 i = i + 1
 
 cap.release()