ERROR: libass not found using pkg-config2

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