Go to https://libav.org/download.html git clone git://git.libav.org/libav.git libav To enable most features for Linux Mint you will need to install some extra development libraries sudo apt-get install frei0r-plugins-dev libbs2b-dev libfaac-dev libfdk-aac-dev libgsm1-dev libmp3lame-dev libopencore-amrnb-dev libopencore-amrwb-dev libopencv-dev libopenjpeg-dev libopus-dev libpulse-dev libschroedinger-dev libspeex-dev…