portaudio_c_bindings 19.6.0 (latest)

module C_ffi = Portaudio_ffi

Most functions in this module follow from PortAudio Doxygen as they are thin wrappers over the base PortAudio C library.

module SampleFormat : sig ... end

module PaError = C_ffi.PaError

exception PortAudio_exn of PaError.t * string

type device_index

type pa_time = float

module StreamParameters : sig ... end

module View : sig ... end

This module is a thin wrapper around Ctypes.CArray.t so you should be careful how you use values of this type. It's mostly to avoid copying during the PortAudio callbacks. If you need to keep data around after the callback, copy it into another array that you manage.

module Stream : sig ... end

val initialize : ?terminate_on_exn:bool -> unit -> unit

parameter terminate_on_exn
if true will raise PortAudio_exn with information about what failed.

val terminate : unit -> unit

val sleep : int -> unit

val sample_size : ('a, 'b, 'c) SampleFormat.t -> int

module VersionInfo : sig ... end

module HostApiTypeId = C_ffi.HostApiTypeId

module HostApiInfo : sig ... end

module DeviceInfo : sig ... end

val get_version : unit -> int

val get_version_text : unit -> string

val get_version_info : unit -> VersionInfo.t

val get_error_text : PaError.t -> string

val get_host_api_count : unit -> int

val get_default_host_api : unit -> device_index

val get_host_api_info : device_index -> HostApiInfo.t option

val host_api_type_id_to_host_api_index : HostApiTypeId.t -> device_index option

val get_device_count : unit -> int

val get_default_input_device : unit -> device_index

val get_default_output_device : unit -> device_index

val get_device_info : device_index -> DeviceInfo.t

val get_device_index : int -> device_index option

val is_format_supported : 
  ('a, 'b, 'c) StreamParameters.t ->
  ('a, 'b, 'c) StreamParameters.t ->
  sample_rate:float ->
  (unit, PaError.t) Stdlib.Result.t

package portaudio_c_bindings