| Flag | Description |
|---|---|
| alsa | |
| ffmpeg | |
| flac | |
| id3tag | Enables ID3 tagging with id3tag library |
| jack | |
| ladspa | |
| lv2 | Add support for Ladspa V2 |
| mad | |
| ogg | |
| oss | |
| portmidi | Enable support for MIDI via media-libs/portmidi |
| portmixer | Enable the internal portmixer feature |
| portsmf | Enable support for Portable Standard Midi File Library |
| sbsms | Enables sbsms library support for slower, more accurate pitch and tempo changing |
| twolame | Enables twolame support (MPEG Audio Layer 2 encoder) |
| vamp | Enables vamp plugins support (Audio analysing plugins) |
| vorbis | |
| vst | Enable VST plugin support |