That's an interesting one. I had heard of filebot but don't have any personal use case for it. The license probably qualifies as libre but definitely isn't GPL compatible, for the record: https://github.com/filebot/filebot/blob/master/LICENSE.md
Edit: Actually, it's worth noting that the statement in the README arguably makes filebot non-free. "You may NOT use the source code to publish binary builds without explicit authorization." If that's actually supposed to be enforced by the terms of the license, filebot is definitely not libre software.
On the other hand, it's not clear at all whether this is prohibited by the license. It prohibits "Publishing binaries or competing clones that undermine the ability of the original author to make money from his work." I don't see why publishing a binary for free on a new platform would undermine this in most cases, given that the author already publishes free binaries for most platforms on the official website.
Yeah that's a good point regarding publishing binaries. I would guess that he wants to keep tight quality control (since in the past there were crap binaries being passed around). But yes I don't consider it GPL compatible, but it (was, see below) close enough for me ¯\_(ツ)_/¯ (I try not to let perfect be the enemy of good).
That said I just tried to build it for the first time (wanted to make a small improvement) and there are no documented build steps and a standard ant build doesn't work. There are open github issues where the author is very dismissive and just says basically "code not supported, just for educational purposes."
I poked at it for about 15 minutes but I've never used ant before and couldn't get the build working. That really saddens me. Unless things improve I won't be renewing my subscription. I'm pretty disappointed to say the least.
Edit: Actually, it's worth noting that the statement in the README arguably makes filebot non-free. "You may NOT use the source code to publish binary builds without explicit authorization." If that's actually supposed to be enforced by the terms of the license, filebot is definitely not libre software.
On the other hand, it's not clear at all whether this is prohibited by the license. It prohibits "Publishing binaries or competing clones that undermine the ability of the original author to make money from his work." I don't see why publishing a binary for free on a new platform would undermine this in most cases, given that the author already publishes free binaries for most platforms on the official website.