Rockbox features
Beside the ability of playing and recording audio files, Rockbox offers a lot of playback enhancements that other firmwares may not have implemented already. Listed below are a handful of these features.
* Gapless playback
* Replay Gain[2]
* 5 band fully parametric equalizer[2]
* OTF ("on the fly") playlists
* True random shuffle (fresh randomly shuffled list every time)
* Custom UI themes
* Stereo recording to WAV/AIFF/WavPack (lossless) and MP3[3] (supporting devices)
* FM radio, including FM recording (supporting devices)
* Remote control (supporting devices)
* Digital SPDIF input/output (supporting devices)
* Last.fm support (even on players lacking RTC)
* Cue sheet support
[edit] Plug-ins
Developers of Rockbox are able to create new plug-ins, which provide the user with other enhancements that may not be available on various firmware modules.
At the current development stage, the following plug-ins are available.
* JPEG viewer (16 bit color/33 shade greyscale) [4]
* Rockboy Game Boy emulator (port of Gnuboy) [5]
* ZXBox ZX Spectrum emulator (port of Spectemu) [6]
* Doom (port of the PrBoom engine)
* WAV to MP3 encoder
* WAV to WavPack encoder
* MPEG video player [1]
* Various games including sudoku, solitaire, minesweeper, pong and many others (see
http://www.rockbox.org/twiki/bin/view/Main/PluginIndex for an official list of plugins)
* MIDI player, realtime on some targets. Requires external instrument set, available on Rockbox page.
[edit] Unsupported features
Rockbox development is always ongoing. However, either due to the lack of support from external companies or platform drawbacks, Rockbox has a few features which are not yet implemented.
* Firewire
* Digital rights management (intentionally)
* USB host capability ("USB On-The-Go") (this is part of a Google summer of code 2007 project)