The AAC Audio format relies on libfdk_aac, whereas the X264 Video format relies on libfaac.

It seems unlikely that anyone would have both installed, so it would seem that one or the other will always be failing. Is there perhaps a different way to specify which library is available, or should we update one or the other? My thought would be to update both to "libfdk_aac" for the moment as this is the library ffmpeg is currently recommending in its install process.