StatefulEffectBase Class Reference

#include <StatefulEffectBase.h>

Inheritance diagram for StatefulEffectBase:

Classes
class	Instance
	Calls through to members of StatefulEffectBase. More...

Public Types
using	MessagePackage = EffectInstance::MessagePackage

Public Member Functions
virtual bool	Init ()
virtual bool	Process (EffectInstance &instance, EffectSettings &settings)=0
virtual bool	RealtimeInitialize (EffectSettings &settings, double sampleRate)
virtual bool	RealtimeAddProcessor (EffectSettings &settings, EffectOutputs *pOutputs, unsigned numChannels, float sampleRate)
virtual bool	RealtimeSuspend ()
virtual bool	RealtimeResume ()
virtual bool	RealtimeProcessStart (MessagePackage &package)
	settings are possibly changed, since last call, by an asynchronous dialog More...
virtual size_t	RealtimeProcess (size_t group, EffectSettings &settings, const float *const *inBuf, float *const *outBuf, size_t numSamples)
virtual bool	RealtimeProcessEnd (EffectSettings &settings) noexcept
	settings can be updated to let a dialog change appearance at idle More...
virtual bool	RealtimeFinalize (EffectSettings &settings) noexcept
virtual size_t	SetBlockSize (size_t maxBlockSize)
virtual size_t	GetBlockSize () const
virtual unsigned	GetAudioInCount () const
	How many input buffers to allocate at once. More...
virtual unsigned	GetAudioOutCount () const
	How many output buffers to allocate at once. More...
virtual sampleCount	GetLatency () const
virtual bool	NeedsDither () const
virtual bool	ProcessInitialize (EffectSettings &settings, double sampleRate, ChannelNames chanMap=nullptr)
virtual bool	ProcessFinalize () noexcept

Private Attributes
size_t	mEffectBlockSize { 0 }

Detailed Description

A mix-in class for effects that are not yet migrated to statelessness. To be eliminated when all effects are migrated

Definition at line 23 of file StatefulEffectBase.h.

Member Typedef Documentation

MessagePackage

using StatefulEffectBase::MessagePackage = EffectInstance::MessagePackage

Definition at line 101 of file StatefulEffectBase.h.

Member Function Documentation

GetAudioInCount()

unsigned StatefulEffectBase::GetAudioInCount ( ) const

virtual

How many input buffers to allocate at once.

If the instance processes channels independently, this can return 1 The result is not necessarily well defined before RealtimeInitialize Default implementation returns 0

Reimplemented in EffectAmplify, EffectFade, EffectInvert, EffectScienFilter, EffectStereoToMono, and VampEffect.

Definition at line 154 of file StatefulEffectBase.cpp.

{
   return 0;
}

GetAudioOutCount()

unsigned StatefulEffectBase::GetAudioOutCount ( ) const

virtual

How many output buffers to allocate at once.

The result is not necessarily well defined before RealtimeInitialize Default implementation returns 0

Reimplemented in EffectAmplify, EffectFade, EffectInvert, EffectNoise, EffectScienFilter, EffectStereoToMono, and EffectToneGen.

Definition at line 159 of file StatefulEffectBase.cpp.

{
   return 0;
}

GetBlockSize()

size_t StatefulEffectBase::GetBlockSize ( ) const

virtual

Default implementation returns mEffectBlockSize

Reimplemented in StatefulPerTrackEffect.

Definition at line 149 of file StatefulEffectBase.cpp.

{
   return mEffectBlockSize;
}

References mEffectBlockSize.

GetLatency()

sampleCount StatefulEffectBase::GetLatency ( ) const

virtual

Default implementation returns 0

Definition at line 212 of file StatefulEffectBase.cpp.

{
   return 0;
}

Init()

bool StatefulEffectBase::Init ( )

virtual

Default implementation does nothing, returns true

Reimplemented in EffectAmplify, EffectAutoDuck, EffectChangeSpeed, EffectEqualization, EffectNoiseRemoval, NyquistEffect, EffectScienFilter, and VampEffect.

Definition at line 207 of file StatefulEffectBase.cpp.

{
   return true;
}

NeedsDither()

bool StatefulEffectBase::NeedsDither ( ) const

virtual

Reimplemented in EffectInvert, EffectRepair, EffectRepeat, and EffectTruncSilence.

Definition at line 217 of file StatefulEffectBase.cpp.

{
   return true;
}

Process()

virtual bool StatefulEffectBase::Process ( EffectInstance &  instance, EffectSettings &  settings  )

pure virtual

Implemented in StatefulPerTrackEffect, EffectAutoDuck, EffectChangeSpeed, EffectClickRemoval, EffectEqualization, EffectFindClipping, Generator, EffectLoudness, EffectNoiseReduction, EffectNoiseRemoval, EffectNormalize, NyquistEffect, EffectPaulstretch, EffectRepair, EffectRepeat, EffectReverse, EffectSBSMS, EffectSimpleMono, EffectStereoToMono, EffectTimeScale, EffectTruncSilence, EffectTwoPassSimpleMono, and VampEffect.

Referenced by StatefulEffect::Instance::Process().

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ProcessFinalize()

bool StatefulEffectBase::ProcessFinalize ( void  )

virtualnoexcept

Called at end of destructive processing, for each (mono/stereo) track Default implementation does nothing, returns true This may be called during stack unwinding:

Reimplemented in StatefulPerTrackEffect.

Definition at line 228 of file StatefulEffectBase.cpp.

{
   return true;
}

ProcessInitialize()

bool StatefulEffectBase::ProcessInitialize ( EffectSettings &  settings, double  sampleRate, ChannelNames  chanMap = nullptr  )

virtual

Called at start of destructive processing, for each (mono/stereo) track Default implementation does nothing, returns true

Parameters

chanMap

null or array terminated with ChannelNameEOL. Do not retain the pointer

Postcondition

GetAudioInCount() and GetAudioOutCount() are well defined

Reimplemented in EffectFade, EffectNoise, EffectScienFilter, EffectToneGen, and StatefulPerTrackEffect.

Definition at line 222 of file StatefulEffectBase.cpp.

{
   return true;
}

RealtimeAddProcessor()

bool StatefulEffectBase::RealtimeAddProcessor ( EffectSettings &  settings, EffectOutputs *  pOutputs, unsigned  numChannels, float  sampleRate  )

virtual

Returns

success Default implementation does nothing, returns true Default implementation does nothing, returns true

Definition at line 169 of file StatefulEffectBase.cpp.

{
   return true;
}

RealtimeFinalize()

bool StatefulEffectBase::RealtimeFinalize ( EffectSettings &  settings )

virtualnoexcept

Returns

success Default implementation does nothing, returns true Default implementation does nothing, returns false

Definition at line 202 of file StatefulEffectBase.cpp.

{
   return false;
}

RealtimeInitialize()

bool StatefulEffectBase::RealtimeInitialize ( EffectSettings &  settings, double  sampleRate  )

virtual

Returns

success

Postcondition

GetAudioInCount() and GetAudioOutCount() are well defined

Default implementation does nothing, returns false (so assume realtime is not supported). Other member functions related to realtime return true or zero, but will not be called, unless a derived class overrides RealtimeInitialize. Default implementation does nothing, returns false

Definition at line 164 of file StatefulEffectBase.cpp.

{
   return false;
}

RealtimeProcess()

size_t StatefulEffectBase::RealtimeProcess ( size_t  group, EffectSettings &  settings, const float *const *  inBuf, float *const *  outBuf, size_t  numSamples  )

virtual

Returns

success Default implementation does nothing, returns 0 Default implementation does nothing, returns 0

Definition at line 190 of file StatefulEffectBase.cpp.

{
   return 0;
}

RealtimeProcessEnd()

bool StatefulEffectBase::RealtimeProcessEnd ( EffectSettings &  settings )

virtualnoexcept

settings can be updated to let a dialog change appearance at idle

Returns

success Default implementation does nothing, returns true Default implementation does nothing, returns true

Definition at line 197 of file StatefulEffectBase.cpp.

{
   return true;
}

RealtimeProcessStart()

bool StatefulEffectBase::RealtimeProcessStart ( MessagePackage &  package )

virtual

settings are possibly changed, since last call, by an asynchronous dialog

Returns

success Default implementation does nothing, returns true Default implementation does nothing, returns true

Definition at line 185 of file StatefulEffectBase.cpp.

{
   return true;
}

RealtimeResume()

bool StatefulEffectBase::RealtimeResume ( )

virtual

Returns

success Default implementation does nothing, returns true Default implementation does nothing, returns true

Definition at line 180 of file StatefulEffectBase.cpp.

{
   return true;
}

RealtimeSuspend()

bool StatefulEffectBase::RealtimeSuspend ( )

virtual

Returns

success Default implementation does nothing, returns true Default implementation does nothing, returns true

Definition at line 175 of file StatefulEffectBase.cpp.

{
   return true;
}

SetBlockSize()

size_t StatefulEffectBase::SetBlockSize ( size_t  maxBlockSize )

virtual

Default implementation assigns mEffectBlockSize, returns it

Reimplemented in StatefulPerTrackEffect.

Definition at line 143 of file StatefulEffectBase.cpp.

{
   mEffectBlockSize = maxBlockSize;
   return mEffectBlockSize;
}

References mEffectBlockSize.

Member Data Documentation

mEffectBlockSize

size_t StatefulEffectBase::mEffectBlockSize { 0 }

private

Definition at line 175 of file StatefulEffectBase.h.

Referenced by GetBlockSize(), and SetBlockSize().

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

• StatefulEffectBase.h
• StatefulEffectBase.cpp