Compile ffmpeg and mplayer with optional extras

In this video we will be building and packaging ffmpeg with cherry picked codecs and features and mplayer from source. ffmpeg still builds fine, but I started having problems compiling mplayer 1.3 in my older system at some point in 2018. so I switched to mpv.

you might succeed in compiling mplayer on a newer system, or compiling a newer mplayer 1.4