# rockbox_ex_ffi v0.6.1 - Table of Contents > Elixir bindings for the Rockbox DSP / metadata / playback engine ## Pages - [rockbox_ex_ffi (Elixir)](readme.md) ## Modules - [Rockbox.ChannelMode](Rockbox.ChannelMode.md): Channel mixing modes for `Rockbox.Player.set_channel_mode/2`. - [Rockbox.CrossfeedMode](Rockbox.CrossfeedMode.md): Headphone crossfeed modes for `Rockbox.Player.set_crossfeed/6`. - [Rockbox.EqPreset](Rockbox.EqPreset.md): Built-in equalizer presets for `Rockbox.Player.set_eq_preset/2`. - [Rockbox.RepeatMode](Rockbox.RepeatMode.md): Repeat modes for `Rockbox.Player.set_repeat/2`. - Core - [Rockbox](Rockbox.md): Elixir bindings for the Rockbox DSP / metadata / playback engine. - Metadata - [Rockbox.Metadata](Rockbox.Metadata.md): Audio file metadata / tag parsing. - DSP - [Rockbox.Dsp](Rockbox.Dsp.md): The DSP pipeline: EQ, tone, surround, compressor, ReplayGain, resampler. - Playback - [Rockbox.InsertPosition](Rockbox.InsertPosition.md): Insert-position codes for `Rockbox.Player.insert/4` and `Rockbox.Player.import_m3u/4`. - [Rockbox.Player](Rockbox.Player.md): Queue-based player with native ReplayGain and Rockbox crossfade. - Codecs - [Rockbox.Decoder](Rockbox.Decoder.md): Decode an audio file to interleaved-stereo S16LE PCM, one chunk at a time.