~ft/dumb

audio/moddec: module music decoder for Plan 9
moddec: do not play anything if seeking past the end
moddec: remove unused macro
moddec: add options to specify output sampling rate and to choose resampler

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#Dynamic Universal Music Bibliotheque (libdumb)

 _______         ____    __         ___    ___
\    _  \       \    /  \  /       \   \  /   /       '   '  '
 |  | \  \       |  |    ||         |   \/   |         .      .
 |  |  |  |      |  |    ||         ||\  /|  |
 |  |  |  |      |  |    ||         || \/ |  |         '  '  '
 |  |  |  |      |  |    ||         ||    |  |         .      .
 |  |_/  /        \  \__//          ||    |  |
/_______/ynamic    \____/niversal  /__\  /____\usic   /|  .  . ibliotheque
                                                     /  \
                                                    / .  \
                                                   / / \  \
                                                  | <  /   \_
                                                  |  \/ /\   /
                                                   \_  /  > /
                                                     | \ / /
                                                     |  ' /
                                                      \__/

#Introduction

DUMB is a module audio renderer library. It reads module files and outputs audio that can be dumped to the actual audio playback library.

This is a fork of the original dumb (http://dumb.sf.net/) by Ben Davis.

#Features

  • Supports playback of the following module formats. The tracker software or library the format is known for is given in parentheses. This does not mean that DUMB does not support files created by other trackers provided that they output files in one of those formats.

    • IT (Impulse Tracker)
    • XM (Fasttracker II)
    • MOD (Ultimate SoundTracker, ProTracker)
    • STM (Scream Tracker)
    • S3M (Scream Tracker 3)
    • 669 (Composer 669)
    • AMF Asylum Music Format
    • AMF Digital Sound and Music Interface Advanced Music Format
    • DSM Digital Sound Interface Kit module format
    • MTM (MultiTracker)
    • OKT (Oktalyzer)
    • PSM (Protracker Studio) Both the older PSM16 and the newer PSM format is supported.
    • PTM (PolyTracker)
    • RIFF AM/AMFF (Galaxy Music System internal format)
  • Audio generated can be used in any way; DUMB does not necessarily send it straight to a sound output system

  • Portable

  • Faithful to the original trackers, especially IT; if it plays a module wrongly, it is considered a bug

  • Accurate support for low-pass resonant filters for IT files

  • Very accurate timing and pitching; completely deterministic playback

  • Click removal

  • Six resampling quality settings: aliasing, aliasing with bandwidth limiting, linear interpolation, linear interpolation with bandwidth limiting, cubic interpolation, and a compile-time-configurable fast sinc resampler

  • Number of samples playing at once can be limited to reduce processor usage, but samples will come back in when other louder ones stop

  • Option to take longer loading but seek fast to any point before the music first loops (seeking time increases beyond this point)

  • All notes will be present and correct even if a module's playback is started in the middle

  • Optional Allegro 4 or Allegro 5 integration support

  • Facility to embed music files in other files (e.g. Allegro datafiles)

#Installation

#Plan 9

mk install

#Other systems

Currently you need to compile libdumb yourself. For more details, please see the file COMPILING.md.

#License

See LICENSE for license details.

#Contributing

Bugs, feature requests and patches can be submitted at https://github.com/kode54/dumb/.