Installing FFmpeg on CentOS 8
Complete the following steps to install FFmpeg on CentOS 8:
sudo dnf install epel-release dnf-utils
sudo yum-config-manager --set-enabled PowerTools
sudo yum-config-manager --add-repo=https://negativo17.org/repos/epel-multimedia.repo
Once the repositories are enabled, install FFmpeg:
sudo dnf install ffmpeg
ffmpeg -version
Using FFmpeg
In this section, we will look at some basic examples on how to use the ffmpeg utility.
Basic conversion
When converting audio and video files with 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
Using codecs
When converting files, use the -c option to specify the codecs. It can be a 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:
ffmpeg -i input.mp4 -c:v libvpx -c:a libvorbis output.webm
Convert an audio file from mp3 to ogg encoded with the libopus codec.
ffmpeg -i input.mp3 -c:a libopus output.ogg
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