devela::_dep::kira::backend::cpal

Struct CpalBackend

pub struct CpalBackend { /* private fields */ }
Available on crate feature dep_kira only.
Expand description

A backend that uses cpal to connect a Renderer to the operating system’s audio driver.

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impl CpalBackend

pub fn pop_cpu_usage(&mut self) -> Option<f32> ⓘ

Returns the oldest reported CPU usage in the queue.

The formula for the CPU usage is time elapsed / time allotted, where

  • time elapsed is the amount of time it took to fill the audio buffer requested by the OS
  • time allotted is the maximum amount of time Kira could take to process audio and still finish in time to avoid audio stuttering (num frames / sample rate)

Trait Implementations§

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impl Backend for CpalBackend

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type Settings = CpalBackendSettings

Settings for this backend.
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type Error = Error

Errors that can occur when using this backend.
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fn setup( settings: <CpalBackend as Backend>::Settings, _internal_buffer_size: usize, ) -> Result<(CpalBackend, u32), <CpalBackend as Backend>::Error> ⓘ

Starts the backend and returns itself and the initial sample rate.
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fn start( &mut self, renderer: Renderer, ) -> Result<(), <CpalBackend as Backend>::Error> ⓘ

Sends the renderer to the backend to start audio playback.
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impl Drop for CpalBackend

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fn drop(&mut self)

Executes the destructor for this type. Read more

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