I have tried multiple guides here (search for \"Building libx265\") and here with no success. Both times I made sure I uninstalled ffmpeg first, went through the guides, then r
Try using --with-x265 instead of --enable-libx265 as described in the official FFmpeg wiki. https://trac.ffmpeg.org/wiki/CompilationGuide/MacOSX
--with-x265
--enable-libx265
Those guides you linked to are not specifically for homebrew, which is why they used --enable instead of --with.
--enable
--with