ffmpeg安装

1.官网地址，去官网下载ffmpeg源码

https://ffmpeg.org

2.安装ffmpeg基础依赖

sudo apt-get update
sudo apt-get install build-essential  yasm texi2html libvorbis-dev libmp3lame-dev libopus-dev libx264-dev libx265-dev libvpx-dev libfdk-aac-dev libass-dev libfreetype6-dev libfontconfig1-dev

3.解压源码，进入源码目录编译安装ffmpeg源码

./configure --prefix=/usr/local/ffmpeg --enable-shared --enable-gpl --enable-version3 --enable-nonfree --enable-libfdk-aac --enable-libfreetype --enable-libmp3lame --enable-libopus --enable-libvorbis --enable-libx264 --enable-libx265 --enable-libvpx --enable-libass
make
sudo make install

4.配置环境变量

export PATH=/usr/local/ffmpeg/bin:$PATH