I do not know. Upstream does not mention optional dependencies. I'm not sure about `flac` and `libvorbis`. Those are mostly used by Linux users, and MiniDLNA has targeted Linux machines up to now. The others, I'm pretty sure that they are needed in order to serve media files used by everybody else. `exif` and `jpeg` are used for pictures, `ffmpeg` for video and audio, and `libid3tag` for audio.