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Edit Videos with FFMPEG

@SOLUTION· 2023-05-07 15:44 · 15 min read

Summary

Often when watching or processing video, I have small, simple needs, such as intercepting a certain period of the video, or splitting a video into multiple videos according to the number of matches, because this need is so simple, it is not cost-effective to install a video processing software. So I tried to learn how to use it to process a simple video, and this article summarises the commands I used.

Install

1. [[email protected]]# yum install epel-release
2. [[email protected]]# rpm -v --import http://li.nux.ro/download/nux/RPM-GPG-KEY-nux.ro
3. [[email protected]]# rpm -Uvh http://li.nux.ro/download/nux/dextop/el7/x86_64/nux-dextop-release-0-5.el7.nux.noarch.rpm
4. [[email protected]]# yum install -y ffmpeg ffmpeg-devel

Frequently Commands

Merge Videos

1. [[email protected]]# cat filelist.txt
2. file '1.mp4'
3. file '2.mp4'
4. file '3.mp4'
5. file '4.mp4'
6. [[email protected]]# ffmpeg -f concat -i filelist.txt -c copy final.mp4

Split Videos

1. [[email protected]]# ffmpeg -ss 00:00:00 -t 00:08:40 -i IMG_2266.MOV -acodec copy -vcodec copy game3.mp4
2. [[email protected]]# ffmpeg -ss 00:09:20 -t 00:18:00 -i IMG_2266.MOV -acodec copy -vcodec copy game4.mp4

• -t 的意思是时长，例如第二句的意思就是从视频的 09:20 分开始，截取一段时长为 18:00 的视频，所以这里实际山视频在原视频的时间段为 09:20 ~ 27:20

Convert MP4 to Mp3

Simplify method：

1. [[email protected]]# ffmpeg -i filename.mp4 filename.mp3

Precise control：

1. [[email protected]]# ffmpeg -i video.mp4 -b:a 192K -vn music.mp3