sudo apt-get update
sudo apt-get upgrade
# (reboot if necessary)

sudo apt-get install cmake-curses-gui nasm gnutls-bin libunistring-dev libx264-dev libvpx-dev libfdk-aac-dev libmp3lame-dev libopus-dev libnuma-dev

cd ~/
mkdir -p ~/ffmpeg_sources ~/ffmpeg_build ~/bin