This started out as a new custom Port of ffmpeg-3.0.2 to FreeBSD so I could fix FFmpeg-related issues with PPSSPP on FreeBSD. However, on 23 November 2024 it was added to the FreeBSD official Ports tree, so for someone wanting to install PPSSPP built against ffmpeg-3.0.2, I recommend just using Ports/packages on your system. (In fact, don't bother installing ffmpeg3 at all--it's a build-only dependency of PPSSPP, so if you install that, it'll be pulled in as needed if building from source, or not fussed with at all if installing PPSSPP from packages).
I'll keep this repo public just to log my tweaks to the port prior to submission/updates to the official Port.
I started this new/custom port because of FFmpeg-related FMV compatibility issues/random PPSSPP crashes. As documented in numerous places by the PPSSPP devs, any version of ffmpeg over 3.0.2 starts to break PPSSPP's normally excellent PSP game compatibility:
hrydgard/ppsspp#15308 (comment)