fn set_buffer_size()

in src/backend/mod.rs [1461:1488]

• 28 lines of code
• 2 McCabe index (conditional complexity)

fn set_buffer_size(
    unit: AudioUnit,
    devtype: DeviceType,
    frames: u32,
) -> std::result::Result<(), OSStatus> {
    assert!(!unit.is_null());
    let (scope, element) = match devtype {
        DeviceType::INPUT => (kAudioUnitScope_Output, AU_IN_BUS),
        DeviceType::OUTPUT => (kAudioUnitScope_Input, AU_OUT_BUS),
        _ => panic!(
            "Set buffer size of AudioUnit {:?} with unsupported type: {:?}",
            unit, devtype
        ),
    };
    let status = audio_unit_set_property(
        unit,
        kAudioDevicePropertyBufferFrameSize,
        scope,
        element,
        &frames,
        mem::size_of_val(&frames),
    );
    if status == NO_ERR {
        Ok(())
    } else {
        Err(status)
    }
}