Trait AudioHandlerTrait 

pub trait AudioHandlerTrait: Send + Sync {
    // Required methods
    fn build_input_stream(&self, prod: HeapProd<f32>) -> Box<dyn PlayableStream>;
    fn build_output_stream(
        &self,
        cons: HeapCons<f32>,
    ) -> Box<dyn PlayableStream>;
    fn input_device(&self) -> &Device;
    fn output_device(&self) -> &Device;
    fn input_config(&self) -> &StreamConfig;
    fn output_config(&self) -> &StreamConfig;
    fn input_sample_rate(&self) -> u32;
    fn output_sample_rate(&self) -> u32;
}

Abstraction over the audio I/O handler used by AudioService.

Using the MockAudioHandlerTrait generated by mockall allows the audio pipeline to be tested without real hardware.

Required Methods

fn build_input_stream(&self, prod: HeapProd<f32>) -> Box<dyn PlayableStream>

Builds and returns a started-ready input stream that pushes captured samples into prod (producer).

Arguments

• prod - The ring-buffer producer that receives raw f32 audio samples.

fn build_output_stream(&self, cons: HeapCons<f32>) -> Box<dyn PlayableStream>

Builds and returns a started-ready output stream that drains samples from cons (consumer) and sends them to the output device.

Slots in the output buffer that have no corresponding sample are filled with silence (0.0).

Arguments

• cons - The ring-buffer consumer that supplies processed f32 audio samples.

fn input_device(&self) -> &Device

Returns a reference to the CPAL input device used by this handler.

fn output_device(&self) -> &Device

Returns a reference to the CPAL output device used by this handler.

fn input_config(&self) -> &StreamConfig

Returns the [StreamConfig] used for the input stream.

fn output_config(&self) -> &StreamConfig

Returns the [StreamConfig] used for the output stream.

fn input_sample_rate(&self) -> u32

Returns the configured input sample rate in Hz.

fn output_sample_rate(&self) -> u32

Returns the configured output sample rate in Hz.

Implementors

impl AudioHandlerTrait for AudioHandler

impl AudioHandlerTrait for MockAudioHandlerTrait

Abstraction over the audio I/O handler used by AudioService.

Using the MockAudioHandlerTrait generated by mockall allows the audio pipeline to be tested without real hardware.