/usr/lib/ocaml/soundtouch/soundtouch.mli is in libsoundtouch-ocaml-dev 0.1.7-1build3.
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* Copyright 2007-2011 Samuel Mimram
*
* This file is part of ocaml-soundtouch.
*
* ocaml-soundtouch is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* ocaml-soundtouch is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with ocaml-soundtouch; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* As a special exception to the GNU Library General Public License, you may
* link, statically or dynamically, a "work that uses the Library" with a publicly
* distributed version of the Library to produce an executable file containing
* portions of the Library, and distribute that executable file under terms of
* your choice, without any of the additional requirements listed in clause 6
* of the GNU Library General Public License.
* By "a publicly distributed version of the Library", we mean either the unmodified
* Library as distributed by The Savonet Team, or a modified version of the Library that is
* distributed under the conditions defined in clause 3 of the GNU Library General
* Public License. This exception does not however invalidate any other reasons why
* the executable file might be covered by the GNU Library General Public License.
*)
(** Soundtouch is a library to change tempo or pitch of sound. *)
(** {2 Initialization} *)
(** A converter. *)
type t
(*
(** Create a new soundtouch converter. *)
val create : unit -> t
(** Indicate the number of audio channels. *)
val set_channels : t -> int -> unit = "ocaml_st_set_channels"
(** Indicate the samplerate of audio data. *)
val set_samplerate : t -> int -> unit = "ocaml_st_set_samplerate"
*)
(** Create a new soundtouch converte with given number of channels and
samplerate. *)
val make : int -> int -> t
(** Soundtouch library version. *)
val get_version_string : t -> string
(** Soundtouch library version identifier. *)
val get_version_id : t -> int
(** {2 Sound parameters} *)
(** Set playing rate (default is [1.], smaller means slower). *)
val set_rate : t -> float -> unit
(** Set tempo (default [1.], smaller means slower). *)
val set_tempo : t -> float -> unit
(** Set pitch (default [1.], smaller means lower). *)
val set_pitch : t -> float -> unit
(** {2 Sound manipulation} *)
(** Put samples (in a non-interleaved format) with given offset in array and
number of samples. *)
val put_samples_ni : t -> float array array -> int -> int -> unit
(** Number of available output samples. *)
val get_available_samples : t -> int
(** Retreive samples (in a non-interleaved format). *)
val get_samples_ni : t -> float array array -> int -> int -> int
(** Flush the last samples from the processing pipeline to the output. *)
val flush : t -> unit
(** Clear all samples in output and internal processing buffers. *)
val clear : t -> unit
(** Tempo (beats-per-minute) detection. *)
module BPM : sig
(** A beat detector. *)
type t
(** Create a new beat detector with given number of channels and
samplerate. *)
val make : int -> int -> t
(** Put samples in the detector. *)
val put_samples_ni : t -> float array array -> int -> int -> unit
(** Analyze samples and estimate tempo (in beats per minute). *)
val get_bpm : t -> float
end
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