FFmpeg is a free and open-source collection of tools for handling multimedia files. It contains a set of shared audio and video libraries such as libavcodec, libavformat, and libavutil. With FFmpeg, you can convert between various video and audio formats, set sample rates, capture streaming audio/video, and resize videos.
This tutorial walks you through installing FFmpeg on CentOS 7.
To be able to add new repositories and install packages on your CentOS system, you must be logged in as a user with sudo privileges .
Verify the FFmpeg installation by checking its version:
At the time of writing this article, the current version of FFmpeg available in the RPM Fusion repository is 3.4.7:
ffmpeg version 3.4.7 Copyright (c) 2000-2019 the FFmpeg developers
built with gcc 4.8.5 (GCC) 20150623 (Red Hat 4.8.5-39)
That’s it. FFmpeg has been installed on your CentOS machine and you can start using it.
In this section, we will look at some basic examples on how to use the ffmpeg utility.
When converting audio and video files using ffmpeg, you do not have to specify the input and output formats. The input file format is auto-detected, and the output format is guessed from the file extension.
Convert a video file from mp4 to webm:
ffmpeg -i input.mp4 output.webm
Convert an audio file from mp3 to ogg:
ffmpeg -i input.mp3 output.ogg
You can specify the codecs you want to use with the -c option. The codec can be the name of any supported decoder/encoder or a special value copy that simply copies the input stream.
Convert a video file from mp4 to webm using the libvpx video codec and libvorbis audio codec: