直接安装：
apt install libass-dev
#apt install libass-devel需要提醒的是，如果换一台机器，如果缺少库就会产生问题。所以最好全部源码编译。
ERROR: libmp3lame >= 3.98.3 not found
apt install libmp3lame-dev
ERROR: opus not found using pkg-config
apt install libopus-dev
ERROR: libtheora not found
apt install libtheora-dev
ERROR: vorbis not found using pkg-config
apt install libvorbis-dev
ERROR: x265 not found using pkg-config
apt install libx265-dev
