FFmpeg GUI for Mac OS X

Hi SI Team & Community

Although I am a video guy I know little or nothing about FFmpeg.
It was always some kind of obscure tool to convert videos.
That is not me being a tool snob.
It is just that when I install a NLE (Non linear Editing) system I usually get lots of GUI encoding tools anyway.

If I am not mistaken FFmpeg is basically the engine behind ES video uploads?

So maybe this is interesting for any one on a mac?

http://www.iffmpeg.com/index.html

Does this have any implications for Easy Social?

Even if I could pre encode videos they have to be hosted and streamed at the server end right?
Does the Easy Social upload have an option to upload a pre-encoded file?

best
Paul