mirror of
https://github.com/1c7/Crash-Course-Computer-Science-Chinese.git
synced 2024-12-21 20:30:12 +08:00
21 lines
775 B
Python
21 lines
775 B
Python
|
# Crash Course Computer Science
|
|||
|
|
# 这里的程序只是为了截图视频开头 00:00:00 的时间表
|
|||
|
|
# 最后的输出结果：40张 jpg 图片
|
|||
|
|
|
|||
|
|
import os
|
|||
|
|
|
|||
|
|
files = [f for f in os.listdir('.') if os.path.isfile(f)]
|
|||
|
|
for f in files:
|
|||
|
|
# 文件名举例：
|
|||
|
|
# 1. 计算机早期历史-Early Computing_BiliBili.mp4
|
|||
|
|
# 23. 屏幕&2D 图形显示-Screens&2D Graphics_BiliBili.mp4
|
|||
|
|
filename = f
|
|||
|
|
filename_array = filename.split('.')
|
|||
|
|
number = filename_array[0] # 拿 1
|
|||
|
|
suffix = filename_array[-1] # 拿 mp4
|
|||
|
|
if suffix == 'mp4':
|
|||
|
|
cmd = "ffmpeg -ss 00:00:00 -i '{0}' -vframes 1 -q:v 2 {1}.jpg".format(filename, number)
|
|||
|
|
# 截图第一帧图片#
|
|||
|
|
# {0} 是 input 文件名
|
|||
|
|
# {1} 是输出的 jpg 名
|
|||
|
|
os.system(cmd) # 执行
|