package bogue

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Dependency graph

bogue
- Bogue
  - Avar
  - Box
  - Button
  - Check
  - Draw
  - Image
  - Label
  - Layout
  - Long_list
  - Main
  - Menu
  - Menu2
  - Mixer
  - Mouse
  - Popup
  - Print
  - Radiolist
  - Select
  - Selection
  - Slider
  - Snapshot
  - Space
  - Style
  - Sync
  - Table
  - Tabs
  - Text_display
  - Text_input
  - Theme
  - Time
  - Timeout
  - Trigger
  - Tvar
  - Update
  - Utils
  - Var
  - Widget

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Basic audio mixer for sound effects

This simple audio mixer makes it possible to play quick sounds, for instance when clicking on buttons, or for game sounds effects.

Only WAV files are supported. For playing MP3 music, and for more options, it is advisable to use the SDL_Mixer library.

Remark: This module is essentially independent of the rest of Bogue, so its source can, with very few modifications, be used for any SDL application.

Dependency graph

type t

type sound = (int, Bigarray.int16_signed_elt) Tsdl.Sdl.bigarray

type repeat =

| Repeat of int
| Forever

val test : unit -> unit

val init : unit -> string option

Initialize SDL audio.

returns
the name of the audio driver.

val create_mixer : ?tracks:int -> ?freq:int -> string option -> t

Create the mixer an open sound device. Only s16le format is supported by the callback at this time.

val load_chunk : t -> string -> sound

Load a WAV file.

val play_chunk : 
  ?track:int ->
  ?effects:(sound -> unit) list ->
  ?volume:float ->
  ?repeat:repeat ->
  t ->
  sound ->
  int option

Play chunk on the desired track number. If track is not specified, find an available track. By default repeat = Repeat 1.

returns
chosen track number, or None

val free_chunk : sound -> unit

val change_volume : float -> sound -> unit

Multiply sound intensity by a float factor

val pause : t -> unit

val unpause : t -> unit

val close : t -> unit