Install the ffmpeg command line tool
Ffmpeg is a command line tool which mission, as quoted on the official website, is to “decode, encode, transcode, mux, demux, stream, filter and play pretty much anything that humans and machines have created”. Regarding on how to install this tool, it is not about starting an executable which let us going through the installation process like many other applications but just a question of putting the single file containing the whole program at the right place.