获取时长 可以使用python 包

pip install moviepy

import os.path
from moviepy.editor import VideoFileClip

def get_lens(path):
    files =  [os.path.join(path, f) for f in os.listdir(path) if f.endswith('.mp4')]
    times = 0
    for f in files:
        # print(f)
        clip = VideoFileClip(f)
        # 计算视频的时长，单位为分钟
        len = f, round(clip.duration / 60, 0)
        times+=len
        clip.close()
    print("总时长:",times)