python怎么读取所有文件夹里的视频

在Python中，你可以使用os模块来遍历目录及其子目录，并结合如`cv2`（计算机视觉库）或`moviepy`等库来读取视频文件。下面是一个基本的示例，展示如何使用os和`cv2.VideoCapture`来读取指定路径下的所有视频：

import os
import cv2

def read_videos_in_dir(directory):
    video_files = []
    for root, dirs, files in os.walk(directory):
        for file in files:
            if file.endswith(('.mp4', '.avi', '.mkv')):  # 添加你关心的视频文件格式
                video_path = os.path.join(root, file)
                try:
                    cap = cv2.VideoCapture(video_path)  # 尝试打开视频
                    if cap.isOpened():
                        video_files.append(video_path)
                        print(f"Found video: {video_path}")
                    else:
                        print(f"Failed to open video: {video_path}")
                except Exception as e:
                    print(f"Error reading video {file}: {e}")
                    continue
    return video_files

directory_to_search = 'your_directory_path'  # 替换为你想要搜索的目录路径
videos = read_videos_in_dir(directory_to_search)