剪下一部分视频——python [英] Cutting out a portion of video - python

问题描述

我有每个大约 25 分钟的视频，我希望从一开始就使用 python 缩短几秒钟.

I have videos of length approximately 25 min each and I wish to cut a few seconds from the start using python.

搜索它，我偶然发现了 python 的 moviepy 包.问题是，即使是单个视频也需要花费大量时间.以下是我用来从单个视频的开头剪切 7 秒的代码片段.写入过程消耗大量时间.有没有更好的方法来使用 python 剪切视频?

Searching about it, I stumbled upon the moviepy package for python. The problem is, it takes up a lot of time even for a single video. Following is the code snippet I use to cut 7 seconds from the start of a single video. The write process consumes a lot of time. Is there a better way to cut the videos using python?

from moviepy.editor import *
clip = VideoFileClip("video1.mp4").cutout(0, 7)
clip.write_videofile("test.mp4")

如果我遗漏了任何细节，请告诉我.

Please let me know if I have missed out any details.

感谢任何帮助.谢谢！

推荐答案

试试这个，告诉我们是否更快(如果可以，它会直接使用ffmpeg提取视频，无需解码和重新编码):

Try this and tell us if it is faster (if it can, it will extract the video directly using ffmpeg, without decoding and reencoding):

from moviepy.video.io.ffmpeg_tools import ffmpeg_extract_subclip
ffmpeg_extract_subclip("video1.mp4", start_time, end_time, targetname="test.mp4")

如果这没有帮助，请查看 代码

If that doesn't help, have a look at the code

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