Crate alsa

Thin but safe wrappers for ALSA.

GitHub repo

Crates.io

This ALSA API wrapper/binding is WIP - the ALSA API is huge, and new functions and structs might be added as requested.

Most functions map 1-to-1 to alsa-lib functions, e g, ctl::CardInfo::get_id() is a wrapper around snd_ctl_card_info_get_id and the alsa-lib documentation can be consulted for additional information.

Enjoy!

Re-exports

pub use crate::card::Card;

pub use crate::hctl::HCtl;

pub use crate::pcm::PCM;

pub use crate::rawmidi::Rawmidi;

pub use crate::poll::Descriptors as PollDescriptors;

pub use crate::mixer::Mixer;

pub use crate::seq::Seq;

Modules

card

Sound card enumeration

ctl

Control device API

device_name

Enumerate devices in the alsa library configuration

direct

Functions that bypass alsa-lib and talk directly to the kernel.

hctl

HCtl API - for mixer control and jack detection

mixer

Mixer API - Simple Mixer API for mixer control

nix

Re-exports from the nix crate.

pcm

Audio playback and capture

poll

Tiny poll ffi

rawmidi

MIDI devices I/O and enumeration

seq

MIDI sequencer I/O and enumeration

Structs

Ctl

snd_ctl_t wrapper

Error

ALSA error

Output

snd_output_t wrapper

Enums

Direction

Replaces constants ending with PLAYBACK/CAPTURE as well as INPUT/OUTPUT

Round

Rounding mode (used in some mixer related calls)

ValueOr

Used to restrict hw parameters. In case the submitted value is unavailable, in which direction should one search for available values?

Type Definitions

Result