Struct CpalOutput 

pub struct CpalOutput { /* private fields */ }

Available on crate feature cpal-output only.

Audio output device impl using cpal.

Implementations

impl CpalOutput

pub fn open() -> Result<Self, Error>

pub fn open_with_host(hostid: AudioHostId) -> Result<Self, Error>

Trait Implementations

impl OutputDevice for CpalOutput

fn channel_count(&self) -> usize

Returns the output buffer channel count (e.g., 1 for mono, 2 for stereo).

fn sample_rate(&self) -> u32

Returns the output sample rate in Hz.

fn sample_position(&self) -> u64

Returns the current playhead position in samples (not frames). Tracks the total number of samples output since device creation.

fn volume(&self) -> f32

Returns the current output volume (typically 0.0 to 1.0).

fn set_volume(&mut self, volume: f32)

Sets the output volume.

fn is_suspended(&self) -> bool

Returns true if audio output is suspended by the system. Only relevant for web audio backends; always returns false for desktop backends.

fn is_running(&self) -> bool

Returns true if audio is currently playing (not paused).

fn pause(&mut self)

Pauses playback while keeping the output source active.

fn resume(&mut self)

Resumes playback from a paused state.

fn play(&mut self, source: Box<dyn Source>)

Starts playback of a new audio source.

fn stop(&mut self)

Stops playback and replaces the source with silence.

fn close(&mut self)

Releases the audio device and cleans up resources.