Describes the layout and properties of an audio bus. More...

#include <juce_AudioProcessor.h>

Collaboration diagram for juce::AudioProcessor::Bus:

[legend]

Classes
struct	BusDirectionAndIndex

Public Member Functions
bool	enable (bool shouldEnable=true)
	Enable or disable this bus. More...

template<typename FloatType >
AudioBuffer< FloatType >	getBusBuffer (AudioBuffer< FloatType > &processBlockBuffer) const
	Returns an AudioBuffer containing a set of channel pointers for a specific bus. More...

BusesLayout	getBusesLayoutForLayoutChangeOfBus (const AudioChannelSet &set) const
	Returns the resulting layouts of all buses after changing the layout of this bus. More...

int	getBusIndex () const noexcept
	Returns the index of this bus. More...

int	getChannelIndexInProcessBlockBuffer (int channelIndex) const noexcept
	Returns the position of a bus's channels within the processBlock buffer. More...

const AudioChannelSet &	getCurrentLayout () const noexcept
	The bus's current layout. More...

const AudioChannelSet &	getDefaultLayout () const noexcept
	Get the default layout of this bus. More...

const AudioChannelSet &	getLastEnabledLayout () const noexcept
	Return the bus's last active channel layout. More...

int	getMaxSupportedChannels (int limit=AudioChannelSet::maxChannelsOfNamedLayout) const
	Returns the maximum number of channels that this bus can support. More...

const String &	getName () const noexcept
	The bus's name. More...

int	getNumberOfChannels () const noexcept
	Return the number of channels of the current bus. More...

bool	isEnabled () const noexcept
	Returns true if the current bus is enabled. More...

bool	isEnabledByDefault () const noexcept
	Returns if this bus is enabled by default. More...

bool	isInput () const noexcept
	Returns true if this bus is an input bus. More...

bool	isLayoutSupported (const AudioChannelSet &set, BusesLayout *currentLayout=nullptr) const
	Checks if a particular layout is supported. More...

bool	isMain () const noexcept
	Returns true if the current bus is the main input or output bus. More...

bool	isNumberOfChannelsSupported (int channels) const
	Checks if this bus can support a given number of channels. More...

bool	setCurrentLayout (const AudioChannelSet &layout)
	Sets the bus's current layout. More...

bool	setCurrentLayoutWithoutEnabling (const AudioChannelSet &layout)
	Sets the bus's current layout without changing the enabled state. More...

bool	setNumberOfChannels (int channels)
	Set the number of channles of this bus. More...

AudioChannelSet	supportedLayoutWithChannels (int channels) const
	Returns a ChannelSet that the bus supports with a given number of channels. More...

Private Member Functions
	Bus (AudioProcessor &, const String &, const AudioChannelSet &, bool)

BusDirectionAndIndex	getDirectionAndIndex () const noexcept

void	updateChannelCount () noexcept

Private Attributes
int	cachedChannelCount

AudioChannelSet	dfltLayout

bool	enabledByDefault

AudioChannelSet	lastLayout

AudioChannelSet	layout

String	name

AudioProcessor &	owner

Friends
class	AudioProcessor

Detailed Description

Describes the layout and properties of an audio bus.

Effectively a bus description is a named set of channel types.

See also: AudioChannelSet, AudioProcessor::addBus

Constructor & Destructor Documentation

◆ Bus()

juce::AudioProcessor::Bus::Bus	(	AudioProcessor &	,
		const String &	,
		const AudioChannelSet &	,
		bool
	)

private

Member Function Documentation

◆ enable()

bool juce::AudioProcessor::Bus::enable ( bool shouldEnable = true )

Enable or disable this bus.

This will return false if the AudioProcessor does not support disabling this bus.

◆ getBusBuffer()

template<typename FloatType >

AudioBuffer<FloatType> juce::AudioProcessor::Bus::getBusBuffer ( AudioBuffer< FloatType > & processBlockBuffer ) const

inline

Returns an AudioBuffer containing a set of channel pointers for a specific bus.

This can be called in processBlock to get a buffer containing a sub-group of the master AudioBuffer which contains all the plugin channels.

◆ getBusesLayoutForLayoutChangeOfBus()

BusesLayout juce::AudioProcessor::Bus::getBusesLayoutForLayoutChangeOfBus ( const AudioChannelSet & set ) const

Returns the resulting layouts of all buses after changing the layout of this bus.

Changing an individual layout of a bus may also change the layout of all the other buses. This method returns what the layouts of all the buses of the audio processor would be, if you were to change the layout of this bus to the given layout. If there is no way to support the given layout then this method will return the next best layout.

◆ getBusIndex()

int juce::AudioProcessor::Bus::getBusIndex ( ) const

noexcept

Returns the index of this bus.

◆ getChannelIndexInProcessBlockBuffer()

int juce::AudioProcessor::Bus::getChannelIndexInProcessBlockBuffer ( int channelIndex ) const

noexcept

Returns the position of a bus's channels within the processBlock buffer.

This can be called in processBlock to figure out which channel of the master AudioBuffer maps onto a specific bus's channel.

◆ getCurrentLayout()

const AudioChannelSet& juce::AudioProcessor::Bus::getCurrentLayout ( ) const

inlinenoexcept

The bus's current layout.

This will be AudioChannelSet::disabled() if the current layout is disabled.

See also: AudioChannelSet

◆ getDefaultLayout()

const AudioChannelSet& juce::AudioProcessor::Bus::getDefaultLayout ( ) const

inlinenoexcept

Get the default layout of this bus.

See also: AudioChannelSet

◆ getDirectionAndIndex()

BusDirectionAndIndex juce::AudioProcessor::Bus::getDirectionAndIndex ( ) const

privatenoexcept

◆ getLastEnabledLayout()

const AudioChannelSet& juce::AudioProcessor::Bus::getLastEnabledLayout ( ) const

inlinenoexcept

Return the bus's last active channel layout.

If the bus is currently enabled then the result will be identical to getCurrentLayout otherwise it will return the last enabled layout.

See also: AudioChannelSet

◆ getMaxSupportedChannels()

int juce::AudioProcessor::Bus::getMaxSupportedChannels ( int limit = AudioChannelSet::maxChannelsOfNamedLayout ) const

Returns the maximum number of channels that this bus can support.

Parameters

limit The maximum value to return.

◆ getName()

const String& juce::AudioProcessor::Bus::getName ( ) const

inlinenoexcept

The bus's name.

◆ getNumberOfChannels()

int juce::AudioProcessor::Bus::getNumberOfChannels ( ) const

inlinenoexcept

Return the number of channels of the current bus.

References juce::AudioChannelSet::maxChannelsOfNamedLayout.

◆ isEnabled()

bool juce::AudioProcessor::Bus::isEnabled ( ) const

inlinenoexcept

Returns true if the current bus is enabled.

References juce::AudioChannelSet::isDisabled().

◆ isEnabledByDefault()

bool juce::AudioProcessor::Bus::isEnabledByDefault ( ) const

inlinenoexcept

Returns if this bus is enabled by default.

◆ isInput()

bool juce::AudioProcessor::Bus::isInput ( ) const

noexcept

Returns true if this bus is an input bus.

◆ isLayoutSupported()

bool juce::AudioProcessor::Bus::isLayoutSupported	(	const AudioChannelSet &	set,
		BusesLayout *	currentLayout = `nullptr`
	)		const

Checks if a particular layout is supported.

Parameters

set	The AudioChannelSet which is to be probed.
currentLayout	If non-null, pretend that the current layout of the AudioProcessor is currentLayout. On exit, currentLayout will be modified to to represent the buses layouts of the AudioProcessor as if the layout of the receiver had been successfully changed. This is useful as changing the layout of the receiver may change the bus layout of other buses.

See also: AudioChannelSet

◆ isMain()

bool juce::AudioProcessor::Bus::isMain ( ) const

inlinenoexcept

Returns true if the current bus is the main input or output bus.

◆ isNumberOfChannelsSupported()

bool juce::AudioProcessor::Bus::isNumberOfChannelsSupported ( int channels ) const

Checks if this bus can support a given number of channels.

◆ setCurrentLayout()

bool juce::AudioProcessor::Bus::setCurrentLayout ( const AudioChannelSet & layout )

Sets the bus's current layout.

If the AudioProcessor does not support this layout then this will return false.

See also: AudioChannelSet

◆ setCurrentLayoutWithoutEnabling()

bool juce::AudioProcessor::Bus::setCurrentLayoutWithoutEnabling ( const AudioChannelSet & layout )

Sets the bus's current layout without changing the enabled state.

If the AudioProcessor does not support this layout then this will return false.

See also: AudioChannelSet

◆ setNumberOfChannels()

bool juce::AudioProcessor::Bus::setNumberOfChannels ( int channels )

Set the number of channles of this bus.

This will return false if the AudioProcessor does not support this layout.

◆ supportedLayoutWithChannels()

AudioChannelSet juce::AudioProcessor::Bus::supportedLayoutWithChannels ( int channels ) const

Returns a ChannelSet that the bus supports with a given number of channels.

◆ updateChannelCount()

void juce::AudioProcessor::Bus::updateChannelCount ( )

privatenoexcept

Friends And Related Function Documentation

◆ AudioProcessor

friend class AudioProcessor

friend

Member Data Documentation

◆ cachedChannelCount

int juce::AudioProcessor::Bus::cachedChannelCount

private

◆ dfltLayout

AudioChannelSet juce::AudioProcessor::Bus::dfltLayout

private

◆ enabledByDefault

bool juce::AudioProcessor::Bus::enabledByDefault

private

◆ lastLayout

AudioChannelSet juce::AudioProcessor::Bus::lastLayout

private

◆ layout

AudioChannelSet juce::AudioProcessor::Bus::layout

private

◆ name

String juce::AudioProcessor::Bus::name

private

◆ owner

AudioProcessor& juce::AudioProcessor::Bus::owner

private

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

juce_AudioProcessor.h

Classes

Public Member Functions

Private Member Functions

Private Attributes

Friends

Detailed Description

Constructor & Destructor Documentation

◆ Bus()

Member Function Documentation

◆ enable()

◆ getBusBuffer()

◆ getBusesLayoutForLayoutChangeOfBus()

◆ getBusIndex()

◆ getChannelIndexInProcessBlockBuffer()

◆ getCurrentLayout()

◆ getDefaultLayout()

◆ getDirectionAndIndex()

◆ getLastEnabledLayout()

◆ getMaxSupportedChannels()

◆ getName()

◆ getNumberOfChannels()

◆ isEnabled()

◆ isEnabledByDefault()

◆ isInput()

◆ isLayoutSupported()

◆ isMain()

◆ isNumberOfChannelsSupported()

◆ setCurrentLayout()

◆ setCurrentLayoutWithoutEnabling()

◆ setNumberOfChannels()

◆ supportedLayoutWithChannels()

◆ updateChannelCount()

Friends And Related Function Documentation

◆ AudioProcessor

Member Data Documentation

◆ cachedChannelCount

◆ dfltLayout

◆ enabledByDefault

◆ lastLayout

◆ layout

◆ name

◆ owner