Install FFmpeg 2.8.4 "Feynman" On Ubuntu 15.10

FFmpeg 2.8.4 “Feynman.” Install FFmpeg multimedia framework on Ubuntu (apt-get PPA) on Ubuntu 15.10 and Ubuntu 14.04. FFmpeg is a command line tool to convert multimedia files on Ubuntu. FFmpeg is the leading multimedia framework, able to decode, encode, transcode, mux, demux, stream, filter and play pretty much anything that humans and machines have created. […]