juce::AudioIODeviceType Class Reference

Represents a type of audio driver, such as DirectSound, ASIO, CoreAudio, etc. More...

#include "juce_AudioIODeviceType.h"

Classes
class	Listener
	A class for receiving events when audio devices are inserted or removed. More...

Public Member Functions
const String &	getTypeName () const noexcept
	Returns the name of this type of driver that this object manages.
virtual void	scanForDevices ()=0
	Refreshes the object's cached list of known devices.
virtual StringArray	getDeviceNames (bool wantInputNames=false) const =0
	Returns the list of available devices of this type.
virtual int	getDefaultDeviceIndex (bool forInput) const =0
	Returns the name of the default device.
virtual int	getIndexOfDevice (AudioIODevice *device, bool asInput) const =0
	Returns the index of a given device in the list of device names.
virtual bool	hasSeparateInputsAndOutputs () const =0
	Returns true if two different devices can be used for the input and output.
virtual AudioIODevice *	createDevice (const String &outputDeviceName, const String &inputDeviceName)=0
	Creates one of the devices of this type.
void	addListener (Listener *listener)
	Adds a listener that will be called when this type of device is added or removed from the system.
void	removeListener (Listener *listener)
	Removes a listener that was previously added with addListener().
virtual	~AudioIODeviceType ()
	Destructor.

Static Public Member Functions
static AudioIODeviceType *	createAudioIODeviceType_CoreAudio ()
	Creates a CoreAudio device type if it's available on this platform, or returns null.
static AudioIODeviceType *	createAudioIODeviceType_iOSAudio ()
	Creates an iOS device type if it's available on this platform, or returns null.
static AudioIODeviceType *	createAudioIODeviceType_WASAPI (WASAPIDeviceMode deviceMode)
	Creates a WASAPI device type in the specified mode if it's available on this platform, or returns null.
static AudioIODeviceType *	createAudioIODeviceType_DirectSound ()
	Creates a DirectSound device type if it's available on this platform, or returns null.
static AudioIODeviceType *	createAudioIODeviceType_ASIO ()
	Creates an ASIO device type if it's available on this platform, or returns null.
static AudioIODeviceType *	createAudioIODeviceType_ALSA ()
	Creates an ALSA device type if it's available on this platform, or returns null.
static AudioIODeviceType *	createAudioIODeviceType_JACK ()
	Creates a JACK device type if it's available on this platform, or returns null.
static AudioIODeviceType *	createAudioIODeviceType_Android ()
	Creates an Android device type if it's available on this platform, or returns null.
static AudioIODeviceType *	createAudioIODeviceType_OpenSLES ()
	Creates an Android OpenSLES device type if it's available on this platform, or returns null.
static AudioIODeviceType *	createAudioIODeviceType_Oboe ()
	Creates an Oboe device type if it's available on this platform, or returns null.
static AudioIODeviceType *	createAudioIODeviceType_Bela ()
	Creates a Bela device type if it's available on this platform, or returns null.

Protected Member Functions
	AudioIODeviceType (const String &typeName)
void	callDeviceChangeListeners ()
	Synchronously calls all the registered device list change listeners.

Detailed Description

Represents a type of audio driver, such as DirectSound, ASIO, CoreAudio, etc.

To get a list of available audio driver types, use the AudioDeviceManager::createAudioDeviceTypes() method. Each of the objects returned can then be used to list the available devices of that type. E.g.

OwnedArray<AudioIODeviceType> types;
myAudioDeviceManager.createAudioDeviceTypes (types);
 
for (int i = 0; i < types.size(); ++i)
{
    String typeName (types[i]->getTypeName());  // This will be things like "DirectSound", "CoreAudio", etc.
 
    types[i]->scanForDevices();                 // This must be called before getting the list of devices
 
    StringArray deviceNames (types[i]->getDeviceNames());  // This will now return a list of available devices of this type
 
    for (int j = 0; j < deviceNames.size(); ++j)
    {
        AudioIODevice* device = types[i]->createDevice (deviceNames [j]);
 
        ...
    }
}

For an easier way of managing audio devices and their settings, have a look at the AudioDeviceManager class.

See also

AudioIODevice, AudioDeviceManager

@tags{Audio}

Definition at line 61 of file juce_AudioIODeviceType.h.

Constructor & Destructor Documentation

~AudioIODeviceType()

juce::AudioIODeviceType::~AudioIODeviceType ( )

virtual

Destructor.

Definition at line 31 of file juce_AudioIODeviceType.cpp.

AudioIODeviceType()

juce::AudioIODeviceType::AudioIODeviceType ( const String &  typeName )

explicitprotected

Definition at line 26 of file juce_AudioIODeviceType.cpp.

Member Function Documentation

addListener()

void juce::AudioIODeviceType::addListener

(

Listener *

listener

)

Adds a listener that will be called when this type of device is added or removed from the system.

Definition at line 36 of file juce_AudioIODeviceType.cpp.

callDeviceChangeListeners()

void juce::AudioIODeviceType::callDeviceChangeListeners ( )

protected

Synchronously calls all the registered device list change listeners.

Definition at line 39 of file juce_AudioIODeviceType.cpp.

createAudioIODeviceType_ALSA()

AudioIODeviceType * juce::AudioIODeviceType::createAudioIODeviceType_ALSA ( )

static

Creates an ALSA device type if it's available on this platform, or returns null.

Definition at line 94 of file juce_AudioIODeviceType.cpp.

createAudioIODeviceType_Android()

AudioIODeviceType * juce::AudioIODeviceType::createAudioIODeviceType_Android ( )

static

Creates an Android device type if it's available on this platform, or returns null.

Definition at line 125 of file juce_AudioIODeviceType.cpp.

createAudioIODeviceType_ASIO()

AudioIODeviceType * juce::AudioIODeviceType::createAudioIODeviceType_ASIO ( )

static

Creates an ASIO device type if it's available on this platform, or returns null.

Definition at line 88 of file juce_AudioIODeviceType.cpp.

createAudioIODeviceType_Bela()

AudioIODeviceType * juce::AudioIODeviceType::createAudioIODeviceType_Bela ( )

static

Creates a Bela device type if it's available on this platform, or returns null.

Definition at line 106 of file juce_AudioIODeviceType.cpp.

createAudioIODeviceType_CoreAudio()

AudioIODeviceType * juce::AudioIODeviceType::createAudioIODeviceType_CoreAudio ( )

static

Creates a CoreAudio device type if it's available on this platform, or returns null.

Definition at line 48 of file juce_AudioIODeviceType.cpp.

createAudioIODeviceType_DirectSound()

AudioIODeviceType * juce::AudioIODeviceType::createAudioIODeviceType_DirectSound ( )

static

Creates a DirectSound device type if it's available on this platform, or returns null.

Definition at line 82 of file juce_AudioIODeviceType.cpp.

createAudioIODeviceType_iOSAudio()

AudioIODeviceType * juce::AudioIODeviceType::createAudioIODeviceType_iOSAudio ( )

static

Creates an iOS device type if it's available on this platform, or returns null.

Definition at line 54 of file juce_AudioIODeviceType.cpp.

createAudioIODeviceType_JACK()

AudioIODeviceType * juce::AudioIODeviceType::createAudioIODeviceType_JACK ( )

static

Creates a JACK device type if it's available on this platform, or returns null.

Definition at line 100 of file juce_AudioIODeviceType.cpp.

createAudioIODeviceType_Oboe()

AudioIODeviceType * juce::AudioIODeviceType::createAudioIODeviceType_Oboe ( )

static

Creates an Oboe device type if it's available on this platform, or returns null.

Definition at line 143 of file juce_AudioIODeviceType.cpp.

createAudioIODeviceType_OpenSLES()

AudioIODeviceType * juce::AudioIODeviceType::createAudioIODeviceType_OpenSLES ( )

static

Creates an Android OpenSLES device type if it's available on this platform, or returns null.

Definition at line 134 of file juce_AudioIODeviceType.cpp.

createAudioIODeviceType_WASAPI()

AudioIODeviceType * juce::AudioIODeviceType::createAudioIODeviceType_WASAPI ( WASAPIDeviceMode  deviceMode )

static

Creates a WASAPI device type in the specified mode if it's available on this platform, or returns null.

Definition at line 75 of file juce_AudioIODeviceType.cpp.

createDevice()

virtual AudioIODevice * juce::AudioIODeviceType::createDevice ( const String &  outputDeviceName, const String &  inputDeviceName  )

pure virtual

Creates one of the devices of this type.

The deviceName must be one of the strings returned by getDeviceNames(), and scanForDevices() must have been called before this method is used.

getDefaultDeviceIndex()

virtual int juce::AudioIODeviceType::getDefaultDeviceIndex ( bool  forInput ) const

pure virtual

Returns the name of the default device.

This will be one of the names from the getDeviceNames() list.

Parameters

forInput

if true, this means that a default input device should be returned; if false, it should return the default output

getDeviceNames()

virtual StringArray juce::AudioIODeviceType::getDeviceNames ( bool  wantInputNames = false ) const

pure virtual

Returns the list of available devices of this type.

The scanForDevices() method must have been called to create this list.

Parameters

wantInputNames

for devices which have separate inputs and outputs this determines which list of names is returned

getIndexOfDevice()

virtual int juce::AudioIODeviceType::getIndexOfDevice ( AudioIODevice *  device, bool  asInput  ) const

pure virtual

Returns the index of a given device in the list of device names.

If asInput is true, it shows the index in the inputs list, otherwise it looks for it in the outputs list.

getTypeName()

const String & juce::AudioIODeviceType::getTypeName ( ) const

noexcept

Returns the name of this type of driver that this object manages.

This will be something like "DirectSound", "ASIO", "CoreAudio", "ALSA", etc.

Definition at line 69 of file juce_AudioIODeviceType.h.

removeListener()

void juce::AudioIODeviceType::removeListener

(

Listener *

listener

)

Removes a listener that was previously added with addListener().

Definition at line 37 of file juce_AudioIODeviceType.cpp.

scanForDevices()

virtual void juce::AudioIODeviceType::scanForDevices ( )

pure virtual

Refreshes the object's cached list of known devices.

This must be called at least once before calling getDeviceNames() or any of the other device creation methods.

---

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

• juce_audio_devices/audio_io/juce_AudioIODeviceType.h
• juce_audio_devices/audio_io/juce_AudioIODeviceType.cpp