Audacity 3.2.0
Private Member Functions | Private Attributes | List of all members
EffectEqualization Class Reference

An Effect that modifies volume in different frequency bands. More...

#include <Equalization.h>

Inheritance diagram for EffectEqualization:
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Collaboration diagram for EffectEqualization:
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Private Member Functions

ComponentInterfaceSymbol GetSymbol () const override
 
bool ValidateUI (const EffectPlugin &plugin, EffectSettings &) const override
 
std::unique_ptr< EffectEditorPopulateOrExchange (ShuttleGui &S, EffectInstance &instance, EffectSettingsAccess &access, const EffectOutputs *pOutputs) override
 Add controls to effect panel; always succeeds. More...
 
bool TransferDataToWindow (const EffectSettings &settings) override
 
 EqualizationBase (int Options=kEqLegacy)
 

Private Attributes

wxWeakRef< wxWindow > mUIParent {}
 
EqualizationUI mUI { *this, mUIParent, GetName(), mCurvesList, mOptions }
 

Additional Inherited Members

- Public Types inherited from StatefulEffectBase
using MessagePackage = EffectInstance::MessagePackage
 
- Public Types inherited from EffectPlugin
using EffectSettingsAccessPtr = std::shared_ptr< EffectSettingsAccess >
 
using InstancePointer = std::shared_ptr< EffectInstanceEx >
 
using InstanceFinder = std::function< std::optional< InstancePointer >(EffectSettings &settings) >
 
- Public Types inherited from EffectDefinitionInterface
enum class  RealtimeSince : unsigned { Never , After_3_1 , Always }
 In which versions of Audacity was an effect realtime capable? More...
 
- Public Types inherited from EffectUIServices
enum  : long { DefaultMessageBoxStyle = wxOK | wxCENTRE }
 
- Public Member Functions inherited from EqualizationBase
 EqualizationBase (int Options=kEqLegacy)
 
virtual ~EqualizationBase ()
 
TranslatableString GetDescription () const override
 
ManualPageID ManualPage () const override
 Name of a page in the Audacity alpha manual, default is empty. More...
 
bool VisitSettings (SettingsVisitor &visitor, EffectSettings &settings) override
 
bool VisitSettings (ConstSettingsVisitor &visitor, const EffectSettings &settings) const override
 
EffectType GetType () const override
 Type determines how it behaves. More...
 
OptionalMessage LoadFactoryDefaults (EffectSettings &settings) const override
 
OptionalMessage DoLoadFactoryDefaults (EffectSettings &settings)
 
RegistryPaths GetFactoryPresets () const override
 Report names of factory presets. More...
 
OptionalMessage LoadFactoryPreset (int id, EffectSettings &settings) const override
 
bool Init () override
 
bool Process (EffectInstance &instance, EffectSettings &settings) override
 
- Public Member Functions inherited from StatefulEffect
 ~StatefulEffect () override
 
std::shared_ptr< EffectInstanceMakeInstance () const override
 Make an object maintaining short-term state of an Effect. More...
 
- Public Member Functions inherited from StatefulEffectBase
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
 
- Public Member Functions inherited from Effect
 Effect ()
 
virtual ~Effect ()
 
PluginPath GetPath () const override
 
bool VisitSettings (SettingsVisitor &visitor, EffectSettings &settings) override
 
bool VisitSettings (ConstSettingsVisitor &visitor, const EffectSettings &settings) const override
 
ComponentInterfaceSymbol GetSymbol () const override
 
VendorSymbol GetVendor () const override
 
wxString GetVersion () const override
 
TranslatableString GetDescription () const override
 
EffectFamilySymbol GetFamily () const override
 Report identifier and user-visible name of the effect protocol. More...
 
bool IsInteractive () const override
 Whether the effect needs a dialog for entry of settings. More...
 
bool IsDefault () const override
 Whether the effect sorts "above the line" in the menus. More...
 
RealtimeSince RealtimeSupport () const override
 Since which version of Audacity has the effect supported realtime? More...
 
bool SupportsAutomation () const override
 Whether the effect has any automatable controls. More...
 
bool SaveSettings (const EffectSettings &settings, CommandParameters &parms) const override
 Store settings as keys and values. More...
 
bool LoadSettings (const CommandParameters &parms, EffectSettings &settings) const override
 Restore settings from keys and values. More...
 
OptionalMessage LoadUserPreset (const RegistryPath &name, EffectSettings &settings) const override
 
bool SaveUserPreset (const RegistryPath &name, const EffectSettings &settings) const override
 Save settings in the configuration file as a user-named preset. More...
 
RegistryPaths GetFactoryPresets () const override
 Report names of factory presets. More...
 
OptionalMessage LoadFactoryPreset (int id, EffectSettings &settings) const override
 
OptionalMessage LoadFactoryDefaults (EffectSettings &settings) const override
 
virtual const EffectParameterMethodsParameters () const
 
bool CanExportPresets () const override
 Whether the effect supports export of presets to files, and importing too. More...
 
bool HasOptions () const override
 
const EffectSettingsManagerGetDefinition () const override
 
virtual NumericFormatID GetSelectionFormat ()
 
bool SaveSettingsAsString (const EffectSettings &settings, wxString &parms) const override
 
OptionalMessage LoadSettingsFromString (const wxString &parms, EffectSettings &settings) const override
 
bool IsBatchProcessing () const override
 
void SetBatchProcessing () override
 
void UnsetBatchProcessing () override
 
unsigned TestUIFlags (unsigned mask)
 
bool Delegate (Effect &delegate, EffectSettings &settings, InstanceFinder finder={})
 Re-invoke DoEffect on another Effect object that implements the work. More...
 
- Public Member Functions inherited from EffectBase
 EffectBase ()
 
 ~EffectBase () override
 
bool IsLinearEffect () const
 
bool PreviewsFullSelection () const
 
void SetTracks (TrackList *pTracks)
 
double GetDefaultDuration ()
 
virtual std::any BeginPreview (const EffectSettings &settings)
 Called when Preview() starts, to allow temporary effect state changes. More...
 
bool DoEffect (EffectSettings &settings, const InstanceFinder &finder, double projectRate, TrackList *list, WaveTrackFactory *factory, NotifyingSelectedRegion &selectedRegion, unsigned flags, const EffectSettingsAccessPtr &pAccess) override
 
virtual double CalcPreviewInputLength (const EffectSettings &settings, double previewLength) const =0
 
void CountWaveTracks ()
 
- Public Member Functions inherited from EffectPlugin
EffectPluginoperator= (EffectPlugin &)=delete
 
virtual ~EffectPlugin ()
 
virtual bool HasOptions () const =0
 
virtual bool CanExportPresets () const =0
 Whether the effect supports export of presets to files, and importing too. More...
 
virtual const EffectSettingsManagerGetDefinition () const =0
 
virtual bool SaveSettingsAsString (const EffectSettings &settings, wxString &parms) const =0
 
virtual OptionalMessage LoadSettingsFromString (const wxString &parms, EffectSettings &settings) const =0
 
virtual bool IsBatchProcessing () const =0
 
virtual void SetBatchProcessing ()=0
 
virtual void UnsetBatchProcessing ()=0
 
virtual bool DoEffect (EffectSettings &settings, const InstanceFinder &finder, double projectRate, TrackList *list, WaveTrackFactory *factory, NotifyingSelectedRegion &selectedRegion, unsigned flags, const EffectSettingsAccessPtr &pAccess=nullptr)=0
 
- Public Member Functions inherited from EffectInstanceFactory
virtual ~EffectInstanceFactory ()
 
virtual std::shared_ptr< EffectInstanceMakeInstance () const =0
 Make an object maintaining short-term state of an Effect. More...
 
- Public Member Functions inherited from EffectSettingsManager
virtual ~EffectSettingsManager ()
 
virtual bool VisitSettings (SettingsVisitor &visitor, EffectSettings &settings)
 
virtual bool VisitSettings (ConstSettingsVisitor &visitor, const EffectSettings &settings) const
 
virtual EffectSettings MakeSettings () const
 
virtual bool CopySettingsContents (const EffectSettings &src, EffectSettings &dst) const
 Update one settings object from another. More...
 
virtual std::unique_ptr< EffectOutputsMakeOutputs () const
 Produce an object to hold values to send to effect output meters. More...
 
- Public Member Functions inherited from EffectDefinitionInterface
virtual ~EffectDefinitionInterface ()
 
virtual EffectType GetType () const =0
 Type determines how it behaves. More...
 
virtual EffectType GetClassification () const
 Determines which menu it appears in; default same as GetType(). More...
 
virtual EffectFamilySymbol GetFamily () const =0
 Report identifier and user-visible name of the effect protocol. More...
 
virtual bool IsInteractive () const =0
 Whether the effect needs a dialog for entry of settings. More...
 
virtual bool IsDefault () const =0
 Whether the effect sorts "above the line" in the menus. More...
 
virtual RealtimeSince RealtimeSupport () const =0
 Since which version of Audacity has the effect supported realtime? More...
 
bool SupportsRealtime () const
 
virtual bool SupportsAutomation () const =0
 Whether the effect has any automatable controls. More...
 
virtual bool EnablesDebug () const
 Whether the effect dialog should have a Debug button; default, always false. More...
 
virtual ManualPageID ManualPage () const
 Name of a page in the Audacity alpha manual, default is empty. More...
 
virtual FilePath HelpPage () const
 Fully qualified local help file name, default is empty. More...
 
virtual bool IsHiddenFromMenus () const
 Default is false. More...
 
- Public Member Functions inherited from ComponentInterface
virtual ~ComponentInterface ()
 
virtual PluginPath GetPath () const =0
 
virtual ComponentInterfaceSymbol GetSymbol () const =0
 
virtual VendorSymbol GetVendor () const =0
 
virtual wxString GetVersion () const =0
 
virtual TranslatableString GetDescription () const =0
 
TranslatableString GetName () const
 
- Public Member Functions inherited from StatefulEffectUIServices
 ~StatefulEffectUIServices () override
 
std::unique_ptr< EffectEditorPopulateUI (const EffectPlugin &plugin, ShuttleGui &S, EffectInstance &instance, EffectSettingsAccess &access, const EffectOutputs *pOutputs) const override
 Allows PopulateOrExchange to return null. More...
 
virtual std::unique_ptr< EffectEditorPopulateOrExchange (ShuttleGui &S, EffectInstance &instance, EffectSettingsAccess &access, const EffectOutputs *pOutputs)
 Add controls to effect panel; always succeeds. More...
 
virtual bool TransferDataToWindow (const EffectSettings &settings)
 
virtual bool TransferDataFromWindow (EffectSettings &settings)
 
- Public Member Functions inherited from BasicEffectUIServices
int ShowClientInterface (const EffectPlugin &plugin, wxWindow &parent, wxDialog &dialog, EffectEditor *pEditor, bool forceModal) const override
 
void ExportPresets (const EffectPlugin &plugin, const EffectSettings &settings) const override
 
OptionalMessage ImportPresets (const EffectPlugin &plugin, EffectSettings &settings) const override
 
void ShowOptions (const EffectPlugin &plugin) const override
 
bool ValidateUI (const EffectPlugin &context, EffectSettings &) const override
 
bool CloseUI () const override
 
- Public Member Functions inherited from EffectUIServices
virtual ~EffectUIServices ()
 
virtual int ShowHostInterface (EffectBase &plugin, wxWindow &parent, const EffectDialogFactory &factory, std::shared_ptr< EffectInstance > &pInstance, EffectSettingsAccess &access, bool forceModal=false)
 
virtual int ShowClientInterface (const EffectPlugin &plugin, wxWindow &parent, wxDialog &dialog, EffectEditor *pEditor, bool forceModal=false) const =0
 
virtual std::unique_ptr< EffectEditorPopulateUI (const EffectPlugin &plugin, ShuttleGui &S, EffectInstance &instance, EffectSettingsAccess &access, const EffectOutputs *pOutputs) const =0
 Adds controls to a panel that is given as the parent window of S More...
 
virtual void ExportPresets (const EffectPlugin &plugin, const EffectSettings &settings) const =0
 
virtual OptionalMessage ImportPresets (const EffectPlugin &plugin, EffectSettings &settings) const =0
 
virtual void ShowOptions (const EffectPlugin &plugin) const =0
 
virtual bool ValidateUI (const EffectPlugin &context, EffectSettings &settings) const =0
 
virtual bool CloseUI () const =0
 
- Static Public Member Functions inherited from EqualizationBase
static EqualizationParametersFetchParameters (EqualizationBase &e, EffectSettings &)
 
- Static Public Member Functions inherited from Effect
static EffectFetchParameters (Effect &e, EffectSettings &)
 
- Static Public Member Functions inherited from EffectBase
static std::optional< InstancePointerFindInstance (EffectPlugin &plugin)
 
static InstanceFinder DefaultInstanceFinder (EffectPlugin &plugin)
 
- Static Public Member Functions inherited from EffectDefinitionInterface
static Identifier GetSquashedName (const Identifier &ident)
 A utility that strips spaces and CamelCases a name. More...
 
- Static Public Member Functions inherited from EffectUIServices
static int DoMessageBox (const EffectPlugin &plugin, const TranslatableString &message, long style=DefaultMessageBoxStyle, const TranslatableString &titleStr={})
 
- Public Attributes inherited from EffectBase
std::shared_ptr< TrackListmTracks {}
 
int mNumTracks {}
 
BasicUI::ProgressDialogmProgress {}
 
double mProjectRate {}
 
WaveTrackFactorymFactory {}
 
double mT0 {}
 
double mT1 {}
 
bool mIsPreview { false }
 
- Static Public Attributes inherited from EqualizationBase
static const ComponentInterfaceSymbol Symbol { XO("Equalization") }
 
- Static Public Attributes inherited from EffectPlugin
static const wxString kUserPresetIdent = wxT("User Preset:")
 
static const wxString kFactoryPresetIdent = wxT("Factory Preset:")
 
static const wxString kCurrentSettingsIdent = wxT("<Current Settings>")
 
static const wxString kFactoryDefaultsIdent = wxT("<Factory Defaults>")
 
- Protected Member Functions inherited from EqualizationBase
bool ProcessOne (Task &task, int count, const WaveChannel &t, sampleCount start, sampleCount len)
 
const EffectParameterMethodsParameters () const override
 
- Protected Member Functions inherited from Effect
bool CheckWhetherSkipEffect (const EffectSettings &settings) const override
 Default implementation returns false. More...
 
double CalcPreviewInputLength (const EffectSettings &settings, double previewLength) const override
 Default implementation returns previewLength More...
 
bool TotalProgress (double frac, const TranslatableString &={}) const
 
bool TrackProgress (int whichTrack, double frac, const TranslatableString &={}) const
 
bool TrackGroupProgress (int whichGroup, double frac, const TranslatableString &={}) const
 
int GetNumWaveTracks () const
 
int GetNumWaveGroups () const
 
void GetBounds (const WaveTrack &track, sampleCount *start, sampleCount *len)
 
- Protected Member Functions inherited from EffectBase
virtual bool CheckWhetherSkipEffect (const EffectSettings &settings) const =0
 After Init(), tell whether Process() should be skipped. More...
 
void SetLinearEffectFlag (bool linearEffectFlag)
 
void SetPreviewFullSelectionFlag (bool previewDurationFlag)
 
bool IsPreviewing () const
 
const TrackListinputTracks () const
 
const AudacityProjectFindProject () const
 
- Protected Attributes inherited from EqualizationBase
EqualizationFilter mParameters
 
EqualizationCurvesList mCurvesList { mParameters }
 
const int mOptions
 
- Protected Attributes inherited from EffectBase
double mF0 {}
 
double mF1 {}
 
wxArrayString mPresetNames
 
unsigned mUIFlags { 0 }
 

Detailed Description

An Effect that modifies volume in different frequency bands.

Performs filtering, using an FFT to do a FIR filter. It lets the user draw an arbitrary envelope (using the same envelope editing code that is used to edit the track's amplitude envelope).

Also allows the curve to be specified with a series of 'graphic EQ' sliders.

The filter is applied using overlap/add of Hann windows.

Clone of the FFT Filter effect, no longer part of Audacity.

Definition at line 21 of file Equalization.h.

Member Function Documentation

◆ EqualizationBase()

EqualizationBase::EqualizationBase ( int  Options = kEqLegacy)
private

Definition at line 21 of file EqualizationBase.cpp.

38 , mOptions { Options }
39{
40 auto& hiFreq = mParameters.mHiFreq;
41 auto& curves = mCurvesList.mCurves;
42
43 Parameters().Reset(*this);
44
46
47 // Load the EQ curves
48 EQCurveReader { curves, GetName(), mOptions }.LoadCurves();
49
50 // Note: initial curve is set in TransferDataToWindow
51
52 // double loLog = log10(mLoFreq);
53 // double stepLog = (log10(hiFreq) - loLog)/((double)NUM_PTS-1.);
54
55 // We expect these Hi and Lo frequencies to be overridden by Init().
56 // Don't use inputTracks(). See bug 2321.
57#if 0
58 auto trackList = inputTracks();
59 const auto t = trackList
60 ? *trackList->Any<const WaveTrack>().first
61 : nullptr
62 ;
63 hiFreq =
64 (t
65 ? t->GetRate()
67 / 2.0;
68#endif
69 hiFreq = mProjectRate / 2.0;
70}
TranslatableString GetName() const
Deserializer of curves from XML files.
void SetLinearEffectFlag(bool linearEffectFlag)
Definition: EffectBase.cpp:210
const TrackList * inputTracks() const
Definition: EffectBase.h:102
double mProjectRate
Definition: EffectBase.h:119
const EffectSettingsManager & GetDefinition() const override
Definition: Effect.cpp:182
virtual void Reset(Effect &effect) const =0
EqualizationCurvesList mCurvesList
EqualizationFilter mParameters
const EffectParameterMethods & Parameters() const override
A Track that contains audio waveform data.
Definition: WaveTrack.h:203

References params.

◆ GetSymbol()

ComponentInterfaceSymbol EffectEqualization::GetSymbol ( ) const
overrideprivatevirtual

Implements ComponentInterface.

Definition at line 57 of file Equalization.cpp.

58{
64}
const int kEqOptionCurve
const int kEqOptionGraphic
static const ComponentInterfaceSymbol Symbol
Definition: Equalization.h:44
static const ComponentInterfaceSymbol Symbol
Definition: Equalization.h:52
static const ComponentInterfaceSymbol Symbol

References kEqOptionCurve, kEqOptionGraphic, EqualizationBase::mOptions, EqualizationBase::Symbol, EffectEqualizationCurve::Symbol, and EffectEqualizationGraphic::Symbol.

◆ PopulateOrExchange()

std::unique_ptr< EffectEditor > EffectEqualization::PopulateOrExchange ( ShuttleGui S,
EffectInstance instance,
EffectSettingsAccess access,
const EffectOutputs pOutputs 
)
overrideprivatevirtual

Add controls to effect panel; always succeeds.

Returns
if not null, then return it from PopulateUI instead of a DefaultEffectEditor; default implementation returns null

Reimplemented from StatefulEffectUIServices.

Definition at line 73 of file Equalization.cpp.

76{
77 mUIParent = S.GetParent();
78 return mUI.PopulateOrExchange(S, instance, access, pOutputs);
79}
#define S(N)
Definition: ToChars.cpp:64
EqualizationUI mUI
Definition: Equalization.h:38
wxWeakRef< wxWindow > mUIParent
Definition: Equalization.h:37
std::unique_ptr< EffectEditor > PopulateOrExchange(ShuttleGui &S, EffectInstance &instance, EffectSettingsAccess &access, const EffectOutputs *pOutputs)

References mUI, mUIParent, EqualizationUI::PopulateOrExchange(), and S.

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◆ TransferDataToWindow()

bool EffectEqualization::TransferDataToWindow ( const EffectSettings settings)
overrideprivatevirtual

Update controls for the settings; default does nothing, returns true

Reimplemented from StatefulEffectUIServices.

Definition at line 84 of file Equalization.cpp.

85{
87}
static Settings & settings()
Definition: TrackInfo.cpp:51
bool TransferDataToWindow(const EffectSettings &settings)

References mUI, settings(), and EqualizationUI::TransferDataToWindow().

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◆ ValidateUI()

bool EffectEqualization::ValidateUI ( const EffectPlugin plugin,
EffectSettings settings 
) const
overrideprivatevirtual

Reimplemented from BasicEffectUIServices.

Definition at line 66 of file Equalization.cpp.

68{
69 // Stateful effect still cheats const_cast!
70 return const_cast<EffectEqualization&>(*this).mUI.ValidateUI(settings);
71}
An Effect that modifies volume in different frequency bands.
Definition: Equalization.h:24
bool ValidateUI(EffectSettings &settings)

References mUI, settings(), and EqualizationUI::ValidateUI().

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Member Data Documentation

◆ mUI

EqualizationUI EffectEqualization::mUI { *this, mUIParent, GetName(), mCurvesList, mOptions }
private

Definition at line 38 of file Equalization.h.

Referenced by PopulateOrExchange(), TransferDataToWindow(), and ValidateUI().

◆ mUIParent

wxWeakRef<wxWindow> EffectEqualization::mUIParent {}
private

Definition at line 37 of file Equalization.h.

Referenced by PopulateOrExchange().


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