I managed to install FFMPEG on Centos via WHM following this guide.
But when I run ffmpeg -version I get:
2.8.15
...whereas the official site says the latest version is 4.0.2.
How can I update my installation or install afresh with the latest version?
(Context: I'm trying to work out why a WEBM-to-MP4 conversion via FFMPEG results in a 0-bytes file and thought updating FFMPEG might help.)