v1::audio_device Class Reference

#include <hikogui/audio/audio_device.hpp>

Inheritance diagram for v1::audio_device:

Public Member Functions
std::string const &	id () const noexcept
	The nonephemeral unique id that for an audio device on the system.
std::string	name () const noexcept
	Get a user friendly name of the audio device.
virtual label	label () const noexcept=0
	Get a user friendly label of the audio device.
virtual void	update_state () noexcept=0
	Update the internal state based on the audio device.
virtual audio_device_state	state () const noexcept=0
	Get the current state of the audio device.
virtual audio_direction	direction () const noexcept=0
virtual bool	exclusive () const noexcept=0
	Check if the device is in exclusive mode.
virtual void	set_exclusive (bool exclusive) noexcept=0
	Set the device in exclusive or shared mode.
virtual double	sample_rate () const noexcept=0
	Get the currently configured sample rate.
virtual void	set_sample_rate (double sample_rate) noexcept=0
	Set the sample rate.
virtual hi::speaker_mapping	input_speaker_mapping () const noexcept=0
	Get the currently configured input speaker mapping.
virtual void	set_input_speaker_mapping (hi::speaker_mapping speaker_mapping) noexcept=0
	Set the input speaker mapping.
virtual std::vector< hi::speaker_mapping >	available_input_speaker_mappings () const noexcept=0
	Speaker mapping that are available in the current configuration.
virtual hi::speaker_mapping	output_speaker_mapping () const noexcept=0
	Get the currently configured output speaker mapping.
virtual void	set_output_speaker_mapping (hi::speaker_mapping speaker_mapping) noexcept=0
	Set the output speaker mapping.
virtual std::vector< hi::speaker_mapping >	available_output_speaker_mappings () const noexcept=0
	Speaker mapping that are available in the current configuration.

Detailed Description

A set of audio channels which can be rendered and/or captures at the same time.

On win32 this would be Audio Endpoint gfx_device, which can either render or capture but not at the same time.

On MacOS this would contain all the inputs and outputs of either a physical or aggregate device that can run in the same clock domain, with both render and capture at the same time.

Member Function Documentation

available_input_speaker_mappings()

virtual std::vector< hi::speaker_mapping > v1::audio_device::available_input_speaker_mappings ( ) const

pure virtualnoexcept

Speaker mapping that are available in the current configuration.

Returns

A list of speaker mappings.

available_output_speaker_mappings()

virtual std::vector< hi::speaker_mapping > v1::audio_device::available_output_speaker_mappings ( ) const

pure virtualnoexcept

Speaker mapping that are available in the current configuration.

Returns

A list of speaker mappings.

exclusive()

virtual bool v1::audio_device::exclusive ( ) const

pure virtualnoexcept

Check if the device is in exclusive mode.

Returns

True to if exclusive mode, False if shared mode

id()

std::string const & v1::audio_device::id ( ) const

inlinenoexcept

The nonephemeral unique id that for an audio device on the system.

input_speaker_mapping()

virtual hi::speaker_mapping v1::audio_device::input_speaker_mapping ( ) const

pure virtualnoexcept

Get the currently configured input speaker mapping.

Returns

The current configured input speaker mapping.

label()

virtual label v1::audio_device::label ( ) const

pure virtualnoexcept

Get a user friendly label of the audio device.

This is a combination of the name of the device and the name of the end-point, plus an icon for the driver architecture.

name()

std::string v1::audio_device::name ( ) const

inlinenoexcept

Get a user friendly name of the audio device.

This is a combination of the name of the device and the name of the end-point.

output_speaker_mapping()

virtual hi::speaker_mapping v1::audio_device::output_speaker_mapping ( ) const

pure virtualnoexcept

Get the currently configured output speaker mapping.

Returns

The current configured output speaker mapping.

sample_rate()

virtual double v1::audio_device::sample_rate ( ) const

pure virtualnoexcept

Get the currently configured sample rate.

Returns

The current sample rate, or 0.0f when the sample rate is not configured.

set_exclusive()

virtual void v1::audio_device::set_exclusive ( bool exclusive )

pure virtualnoexcept

Set the device in exclusive or shared mode.

In shared mode:

• The sample rate is the same as the operating system's mixer.
• The speaker mapping is the same as the operating system's mixer.

In exclusive mode:

• The sample rate can be changed, and the physical audio device will be configured to it.
• The speaker mapping can be changed, and the physical device will configure its input and outputs accordingly.

Parameters

exclusive

True to get exclusive mode, False to get shared mode.

set_input_speaker_mapping()

virtual void v1::audio_device::set_input_speaker_mapping ( hi::speaker_mapping speaker_mapping )

pure virtualnoexcept

Set the input speaker mapping.

Parameters

speaker_mapping

The input speaker mapping to configure the device to.

set_output_speaker_mapping()

virtual void v1::audio_device::set_output_speaker_mapping ( hi::speaker_mapping speaker_mapping )

pure virtualnoexcept

Set the output speaker mapping.

Parameters

speaker_mapping

The output speaker mapping to configure the device to.

set_sample_rate()

virtual void v1::audio_device::set_sample_rate ( double sample_rate )

pure virtualnoexcept

Set the sample rate.

Parameters

sample_rate

The sample rate to configure the device to.

state()

virtual audio_device_state v1::audio_device::state ( ) const

pure virtualnoexcept

Get the current state of the audio device.

update_state()

virtual void v1::audio_device::update_state ( )

pure virtualnoexcept

Update the internal state based on the audio device.

This function is called by the audio-system when a device change was detected.

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The documentation for this class was generated from the following file:

• hikogui/src/hikogui/audio/audio_device.hpp