Struct CoreAudioBackend 

pub struct CoreAudioBackend { /* private fields */ }

CoreAudio host backend with provider-supplied deterministic devices.

Implementations

impl CoreAudioBackend

pub fn new(devices: Vec<CoreAudioDevice>) -> Self

Builds a backend over the given provider-supplied devices.

The advertised capabilities are derived from the device directions, and the backend reports itself as a hardware (non-fake) backend.

pub fn fake() -> Self

Builds a deterministic offline backend with a fake default output and default input device.

The backend reports the Offline and Fake capabilities so it can be exercised in tests without Apple frameworks or audio hardware.

pub fn list_devices(&self) -> &[CoreAudioDevice]

Returns the devices known to this backend.

pub fn default_output(&self) -> Option<&CoreAudioDevice>

Returns the first device flagged as the default output, if any.

pub fn default_input(&self) -> Option<&CoreAudioDevice>

Returns the first device flagged as the default input, if any.

pub fn open_default_output(&self, capacity: usize) -> Result<HostOpenStream>

Opens an output stream on the default output device.

capacity bounds the open request’s buffer policy. Returns an error if no default output device is present.

pub fn open_default_input(&self, capacity: usize) -> Result<HostOpenStream>

Opens an input stream on the default input device.

capacity bounds the open request’s buffer policy. Returns an error if no default input device is present.

Trait Implementations

impl Clone for CoreAudioBackend

fn clone(&self) -> CoreAudioBackend

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for CoreAudioBackend

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for CoreAudioBackend

fn default() -> Self

Returns the “default value” for a type.

impl HostBackend for CoreAudioBackend

fn info(&self) -> &HostBackendInfo

Stable backend metadata.

fn enumerate(&self) -> Result<HostDeviceInventory>

Enumerates available devices and ports without opening hardware streams.

fn open(&self, request: HostStreamConfigRequest) -> Result<HostOpenStream>

Opens a stream according to the requested host configuration.