CentOS 8

安装Extra Packages for Enterprise Linux资源库.

$ sudo yum install https://dl.fedoraproject.org/pub/epel/epel-release-latest-8.noarch.rpm   
$ sudo yum install https://download1.rpmfusion.org/free/el/rpmfusion-free-release-8.noarch.rpm https://download1.rpmfusion.org/nonfree/el/rpmfusion-nonfree-release-8.noarch.rpm   
$ sudo yum install http://rpmfind.net/linux/centos/8-stream/PowerTools/x86_64/os/Packages/SDL2-2.0.10-2.el8.x86_64.rpm   

安装FFmpeg和FFmpeg开发包.

# sudo yum install ffmpeg ffmpeg-devel   

CentOS 7

RPM Fusion 存储库依赖于EPEL 软件存储库。如果您的系统上未启用 EPEL，请键入以下命令启用它：.

sudo yum install epel-release  

接下来，通过安装 rpm 包启用 RPM Fusion 存储库 ：

$ sudo yum localinstall --nogpgcheck https://download1.rpmfusion.org/free/el/rpmfusion-free-release-7.noarch.rpm 

启用存储库后，安装 FFmpeg：

$  sudo yum install ffmpeg ffmpeg-devel

确认FFmpeg的安装:

$ ffmpeg -version   

CentOS 6

安装Nux Dextop资源库.

$ sudo rpm --import http://li.nux.ro/download/nux/RPM-GPG-KEY-nux.ro   
$ sudo rpm -Uvh http://li.nux.ro/download/nux/dextop/el6/x86_64/nux-dextop-release-0-2.el6.nux.noarch.rpm   

安装FFmpeg和FFmpeg开发包.

$ sudo yum install ffmpeg ffmpeg-devel -y   

测试安装

确认FFmpeg的安装:

$ ffmpeg -version   

Example: 将MP3音频文件转换为OGG音频文件.

$ cd   
$ wget https://archive.org/download/MLKDream/MLKDream_64kb.mp3   
$ ffmpeg -i MLKDream_64kb.mp3 -c:a libvorbis -q:a 4 MLKDream_64kb.ogg   

例子: 将一个MP4视频文件转换为OGG视频文件。

$ cd   
$ wget https://archive.org/30/items/I_Have_A_Dream_Speech_excerpt/I_Have_A_Dream_Speech_excerpt.mpeg4 -O MLKDream.mpeg4   
$ ffmpeg -i MLKDream.mpeg4 -codec:v libtheora -qscale:v 3 -codec:a libvorbis -qscale:a 3 -f ogv MLKDream.ogv