Andrew Stone
Veteran
Whether they paid MPEG-LA/Apple et al for codec licenses is another question (a bigger issue if they were based in the US). Note you can also directly link to the libraries that make up ffmpeg and not use the standalone tools (I've done this on Linux). Last I checked it was necessary to cross-compile for Windows on Linux as native compilation wasn't possible.
THere are at least half a dozen ways to get FFMpeg running on Windows. There is UNIX environment Cygwin (which I use), there is the BSD Unix, HomeBrew is another, there are binaries available and several frontends that can be had for free, there is AVISynth, and so on.
Most of us know how open source works, no lecture required. The point is that Cinemartin took a free app and slapped a truly crappy front end on it, sold it for Hollywood style pricing on it and crippled the free app only allowing use of all the cores on your processor if you bought the most expensive version for 800 euros. Of course there is caveat emptor but who cares. This illustrates how lacking this fellow's moral compass is.
Cinemartin's malfeasance has been known to observers for a number of years and the product Cinec is a great example.