AudioProcessorWrapper Class Reference

Wrapper for JUCE AudioProcessor that forwards all calls to a wrapped instance. More...

#include <gin_audioprocessorwrapper.h>

Inheritance diagram for AudioProcessorWrapper:

Public Member Functions
	AudioProcessorWrapper (std::unique_ptr< juce::AudioProcessor > p)
	~AudioProcessorWrapper () override
const juce::String	getName () const override
juce::StringArray	getAlternateDisplayNames () const override
void	setRateAndBufferSizeDetails (double newSampleRate, int newBlockSize) noexcept
void	prepareToPlay (double sampleRate, int maximumExpectedSamplesPerBlock) override
void	releaseResources () override
void	memoryWarningReceived () override
void	processBlock (juce::AudioBuffer< float > &buffer, juce::MidiBuffer &midiMessages) override
void	processBlock (juce::AudioBuffer< double > &buffer, juce::MidiBuffer &midiMessages) override
void	processBlockBypassed (juce::AudioBuffer< float > &buffer, juce::MidiBuffer &midiMessages) override
void	processBlockBypassed (juce::AudioBuffer< double > &buffer, juce::MidiBuffer &midiMessages) override
bool	canAddBus (bool isInput) const override
bool	canRemoveBus (bool isInput) const override
bool	supportsDoublePrecisionProcessing () const override
double	getTailLengthSeconds () const override
bool	acceptsMidi () const override
bool	producesMidi () const override
bool	supportsMPE () const override
bool	isMidiEffect () const override
void	reset () override
juce::AudioProcessorParameter *	getBypassParameter () const override
void	setNonRealtime (bool isNonRealtime) noexcept override
juce::AudioProcessorEditor *	createEditor () override
bool	hasEditor () const override
void	refreshParameterList () override
int	getNumPrograms () override
int	getCurrentProgram () override
void	setCurrentProgram (int index) override
const juce::String	getProgramName (int index) override
void	changeProgramName (int index, const juce::String &newName) override
void	getStateInformation (juce::MemoryBlock &destData) override
void	getCurrentProgramStateInformation (juce::MemoryBlock &destData) override
void	setStateInformation (const void *data, int sizeInBytes) override
void	setCurrentProgramStateInformation (const void *data, int sizeInBytes) override
void	numChannelsChanged () override
void	numBusesChanged () override
void	processorLayoutsChanged () override
void	addListener (juce::AudioProcessorListener *newListener) override
void	removeListener (juce::AudioProcessorListener *listenerToRemove) override
void	setPlayHead (juce::AudioPlayHead *newPlayHead) override
void	audioWorkgroupContextChanged (const juce::AudioWorkgroup &workgroup) override
juce::VST2ClientExtensions *	getVST2ClientExtensions () override
juce::VST3ClientExtensions *	getVST3ClientExtensions () override
CurveData	getResponseCurve (CurveData::Type curveType) const override
void	updateTrackProperties (const TrackProperties &properties) override

Public Attributes
std::unique_ptr< juce::AudioProcessor >	proc

Detailed Description

Wrapper for JUCE AudioProcessor that forwards all calls to a wrapped instance.

AudioProcessorWrapper provides a complete pass-through wrapper for any JUCE AudioProcessor. All virtual methods are forwarded to the wrapped processor, allowing for interception, monitoring, or modification of processor behavior without modifying the original processor code.

Key Features:

• Complete forwarding of all AudioProcessor methods
• Ownership management of wrapped processor
• No overhead when not overriding methods
• Useful for debugging, testing, or adding cross-cutting concerns
• VST2/VST3 extension support

Use Cases:

• Adding logging/debugging to existing processors
• Implementing cross-cutting features (metering, analysis)
• Testing and validation wrappers
• Plugin format adapter patterns

Usage:

// Wrap an existing processor
auto myProcessor = std::make_unique<MyAudioProcessor>();
auto wrapper = std::make_unique<AudioProcessorWrapper>(std::move(myProcessor));
 
// Can also subclass to intercept specific methods
class LoggingWrapper : public AudioProcessorWrapper
{
    void processBlock(juce::AudioBuffer<float>& buffer,
                     juce::MidiBuffer& midi) override
    {
        DBG("Processing " + String(buffer.getNumSamples()) + " samples");
        AudioProcessorWrapper::processBlock(buffer, midi);
    }
};

See also

juce::AudioProcessor

Constructor & Destructor Documentation

AudioProcessorWrapper()

AudioProcessorWrapper::AudioProcessorWrapper

(

std::unique_ptr< juce::AudioProcessor >

p

)

~AudioProcessorWrapper()

AudioProcessorWrapper::~AudioProcessorWrapper ( )

override

Member Function Documentation

getName()

const juce::String AudioProcessorWrapper::getName ( ) const

override

References proc.

getAlternateDisplayNames()

juce::StringArray AudioProcessorWrapper::getAlternateDisplayNames ( ) const

override

References proc.

setRateAndBufferSizeDetails()

void AudioProcessorWrapper::setRateAndBufferSizeDetails ( double  newSampleRate, int  newBlockSize  )

noexcept

References proc.

prepareToPlay()

void AudioProcessorWrapper::prepareToPlay ( double  sampleRate, int  maximumExpectedSamplesPerBlock  )

override

References proc.

Referenced by PluginWrapper::prepareToPlay().

releaseResources()

void AudioProcessorWrapper::releaseResources ( )

override

References proc.

memoryWarningReceived()

void AudioProcessorWrapper::memoryWarningReceived ( )

override

References proc.

processBlock() [1/2]

void AudioProcessorWrapper::processBlock ( juce::AudioBuffer< float > &  buffer, juce::MidiBuffer &  midiMessages  )

override

References proc.

Referenced by PluginWrapper::processBlock().

processBlock() [2/2]

void AudioProcessorWrapper::processBlock ( juce::AudioBuffer< double > &  buffer, juce::MidiBuffer &  midiMessages  )

override

References proc.

processBlockBypassed() [1/2]

void AudioProcessorWrapper::processBlockBypassed ( juce::AudioBuffer< float > &  buffer, juce::MidiBuffer &  midiMessages  )

override

References proc.

processBlockBypassed() [2/2]

void AudioProcessorWrapper::processBlockBypassed ( juce::AudioBuffer< double > &  buffer, juce::MidiBuffer &  midiMessages  )

override

References proc.

canAddBus()

bool AudioProcessorWrapper::canAddBus ( bool  isInput ) const

override

References proc.

canRemoveBus()

bool AudioProcessorWrapper::canRemoveBus ( bool  isInput ) const

override

References proc.

supportsDoublePrecisionProcessing()

bool AudioProcessorWrapper::supportsDoublePrecisionProcessing ( ) const

override

References proc.

getTailLengthSeconds()

double AudioProcessorWrapper::getTailLengthSeconds ( ) const

override

References proc.

acceptsMidi()

bool AudioProcessorWrapper::acceptsMidi ( ) const

override

References proc.

producesMidi()

bool AudioProcessorWrapper::producesMidi ( ) const

override

References proc.

supportsMPE()

bool AudioProcessorWrapper::supportsMPE ( ) const

override

References proc.

isMidiEffect()

bool AudioProcessorWrapper::isMidiEffect ( ) const

override

References proc.

reset()

void AudioProcessorWrapper::reset ( )

override

References proc.

getBypassParameter()

juce::AudioProcessorParameter * AudioProcessorWrapper::getBypassParameter ( ) const

override

References proc.

setNonRealtime()

void AudioProcessorWrapper::setNonRealtime ( bool  isNonRealtime )

overridenoexcept

References proc.

createEditor()

juce::AudioProcessorEditor * AudioProcessorWrapper::createEditor ( )

override

References proc.

hasEditor()

bool AudioProcessorWrapper::hasEditor ( ) const

override

References proc.

refreshParameterList()

void AudioProcessorWrapper::refreshParameterList ( )

override

References proc.

getNumPrograms()

int AudioProcessorWrapper::getNumPrograms ( )

override

References proc.

getCurrentProgram()

int AudioProcessorWrapper::getCurrentProgram ( )

override

References proc.

setCurrentProgram()

void AudioProcessorWrapper::setCurrentProgram ( int  index )

override

References proc.

getProgramName()

const juce::String AudioProcessorWrapper::getProgramName ( int  index )

override

References proc.

changeProgramName()

void AudioProcessorWrapper::changeProgramName ( int  index, const juce::String &  newName  )

override

References proc.

getStateInformation()

void AudioProcessorWrapper::getStateInformation ( juce::MemoryBlock &  destData )

override

References proc.

getCurrentProgramStateInformation()

void AudioProcessorWrapper::getCurrentProgramStateInformation ( juce::MemoryBlock &  destData )

override

References proc.

setStateInformation()

void AudioProcessorWrapper::setStateInformation ( const void *  data, int  sizeInBytes  )

override

References proc.

setCurrentProgramStateInformation()

void AudioProcessorWrapper::setCurrentProgramStateInformation ( const void *  data, int  sizeInBytes  )

override

References proc.

numChannelsChanged()

void AudioProcessorWrapper::numChannelsChanged ( )

override

References proc.

numBusesChanged()

void AudioProcessorWrapper::numBusesChanged ( )

override

References proc.

processorLayoutsChanged()

void AudioProcessorWrapper::processorLayoutsChanged ( )

override

References proc.

addListener()

void AudioProcessorWrapper::addListener ( juce::AudioProcessorListener *  newListener )

override

References proc.

removeListener()

void AudioProcessorWrapper::removeListener ( juce::AudioProcessorListener *  listenerToRemove )

override

References proc.

setPlayHead()

void AudioProcessorWrapper::setPlayHead ( juce::AudioPlayHead *  newPlayHead )

override

References proc.

audioWorkgroupContextChanged()

void AudioProcessorWrapper::audioWorkgroupContextChanged ( const juce::AudioWorkgroup &  workgroup )

override

References proc.

getVST2ClientExtensions()

juce::VST2ClientExtensions * AudioProcessorWrapper::getVST2ClientExtensions ( )

override

References proc.

getVST3ClientExtensions()

juce::VST3ClientExtensions * AudioProcessorWrapper::getVST3ClientExtensions ( )

override

References proc.

getResponseCurve()

CurveData AudioProcessorWrapper::getResponseCurve ( CurveData::Type  curveType ) const

override

References proc.

updateTrackProperties()

void AudioProcessorWrapper::updateTrackProperties ( const TrackProperties &  properties )

override

References proc.

Member Data Documentation

proc

std::unique_ptr<juce::AudioProcessor> AudioProcessorWrapper::proc

Referenced by acceptsMidi(), addListener(), audioWorkgroupContextChanged(), canAddBus(), canRemoveBus(), changeProgramName(), createEditor(), getAlternateDisplayNames(), getBypassParameter(), getCurrentProgram(), getCurrentProgramStateInformation(), getName(), getNumPrograms(), getProgramName(), getResponseCurve(), getStateInformation(), getTailLengthSeconds(), getVST2ClientExtensions(), getVST3ClientExtensions(), hasEditor(), isMidiEffect(), memoryWarningReceived(), numBusesChanged(), numChannelsChanged(), prepareToPlay(), processBlock(), processBlock(), processBlockBypassed(), processBlockBypassed(), processorLayoutsChanged(), producesMidi(), refreshParameterList(), releaseResources(), removeListener(), reset(), setCurrentProgram(), setCurrentProgramStateInformation(), setNonRealtime(), setPlayHead(), setRateAndBufferSizeDetails(), setStateInformation(), supportsDoublePrecisionProcessing(), supportsMPE(), and updateTrackProperties().

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

• gin_audioprocessorwrapper.h