#include <EqualizationBase.h>

Inheritance diagram for EqualizationBase:

Collaboration diagram for EqualizationBase:

Classes
struct	Task

Public Member Functions
	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< EffectInstance >	MakeInstance () 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 EffectParameterMethods &	Parameters () const

bool	CanExportPresets () const override
	Whether the effect supports export of presets to files, and importing too. More...

bool	HasOptions () const override

const EffectSettingsManager &	GetDefinition () 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
EffectPlugin &	operator= (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 EffectSettingsManager &	GetDefinition () 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< EffectInstance >	MakeInstance () 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< EffectOutputs >	MakeOutputs () 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

Static Public Member Functions
static EqualizationParameters *	FetchParameters (EqualizationBase &e, EffectSettings &)

Static Public Member Functions inherited from Effect
static Effect *	FetchParameters (Effect &e, EffectSettings &)

Static Public Member Functions inherited from EffectBase
static std::optional< InstancePointer >	FindInstance (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 Attributes
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
bool	ProcessOne (Task &task, int count, const WaveChannel &t, sampleCount start, sampleCount len)

const EffectParameterMethods &	Parameters () 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 TrackList *	inputTracks () const

const AudacityProject *	FindProject () const

Protected Attributes
EqualizationFilter	mParameters

EqualizationCurvesList	mCurvesList { mParameters }

const int	mOptions

Protected Attributes inherited from EffectBase
double	mF0 {}

double	mF1 {}

wxArrayString	mPresetNames

unsigned	mUIFlags { 0 }

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 Attributes inherited from EffectBase
std::shared_ptr< TrackList >	mTracks {}

int	mNumTracks {}

BasicUI::ProgressDialog *	mProgress {}

double	mProjectRate {}

WaveTrackFactory *	mFactory {}

double	mT0 {}

double	mT1 {}

bool	mIsPreview { false }

Detailed Description

Definition at line 11 of file EqualizationBase.h.

Constructor & Destructor Documentation

◆ EqualizationBase()

EqualizationBase::EqualizationBase ( int Options = kEqLegacy )

Definition at line 36 of file EqualizationBase.cpp.

    : mParameters { GetDefinition() }
    , mOptions { Options }
{
   auto& hiFreq = mParameters.mHiFreq;
   auto& curves = mCurvesList.mCurves;
 
   Parameters().Reset(*this);
 
   SetLinearEffectFlag(true);
 
   // Load the EQ curves
   EQCurveReader { curves, GetName(), mOptions }.LoadCurves();
 
   // Note: initial curve is set in TransferDataToWindow
 
   // double loLog = log10(mLoFreq);
   // double stepLog = (log10(hiFreq) - loLog)/((double)NUM_PTS-1.);
 
   // We expect these Hi and Lo frequencies to be overridden by Init().
   // Don't use inputTracks().  See bug 2321.
#if 0
   auto trackList = inputTracks();
   const auto t = trackList
      ? *trackList->Any<const WaveTrack>().first
      : nullptr
   ;
   hiFreq =
      (t
         ? t->GetRate()
         : mProjectRate)
      / 2.0;
#endif
   hiFreq = mProjectRate / 2.0;
}

References ComponentInterface::GetName(), EffectBase::inputTracks(), EqualizationCurvesList::mCurves, mCurvesList, EqualizationFilter::mHiFreq, mOptions, mParameters, EffectBase::mProjectRate, Parameters(), EffectParameterMethods::Reset(), and EffectBase::SetLinearEffectFlag().

Referenced by Parameters().

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◆ ~EqualizationBase()

EqualizationBase::~EqualizationBase ( )

virtual

Definition at line 72 of file EqualizationBase.cpp.

73{

74}

Member Function Documentation

◆ DoLoadFactoryDefaults()

OptionalMessage EqualizationBase::DoLoadFactoryDefaults ( EffectSettings & settings )

Definition at line 161 of file EqualizationBase.cpp.

{
   mParameters.LoadDefaults(mOptions);
   return Effect::LoadFactoryDefaults(settings);
}

References EqualizationParameters::LoadDefaults(), Effect::LoadFactoryDefaults(), mOptions, mParameters, and settings().

Referenced by LoadFactoryDefaults().

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◆ FetchParameters()

static EqualizationParameters * EqualizationBase::FetchParameters	(	EqualizationBase &	e,
		EffectSettings &
	)

inlinestatic

Definition at line 15 of file EqualizationBase.h.

   {
      return &e.mParameters;
   }

References mParameters.

◆ GetDescription()

TranslatableString EqualizationBase::GetDescription ( ) const

overridevirtual

Implements ComponentInterface.

Definition at line 78 of file EqualizationBase.cpp.

{
   return XO("Adjusts the volume levels of particular frequencies");
}

References XO().

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◆ GetFactoryPresets()

RegistryPaths EqualizationBase::GetFactoryPresets ( ) const

overridevirtual

Report names of factory presets.

Implements EffectSettingsManager.

Definition at line 205 of file EqualizationBase.cpp.

{
   RegistryPaths names;
 
   for (size_t i = 0; i < WXSIZEOF(FactoryPresets); i++)
   {
      if (
         (mOptions == kEqOptionGraphic) &&
         (FactoryPresets[i].bForBoth == false))
         continue;
      names.push_back(FactoryPresets[i].name.Translation());
   }
 
   return names;
}

References FactoryPresets, kEqOptionGraphic, mOptions, name, names, and TranslatableString::Translation().

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◆ GetType()

EffectType EqualizationBase::GetType ( ) const

overridevirtual

Type determines how it behaves.

Implements EffectDefinitionInterface.

Definition at line 95 of file EqualizationBase.cpp.

{
   return EffectTypeProcess;
}

References EffectTypeProcess.

Referenced by Process().

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◆ Init()

bool EqualizationBase::Init ( )

overridevirtual

Default implementation does nothing, returns true

Reimplemented from StatefulEffectBase.

Definition at line 254 of file EqualizationBase.cpp.

{
   constexpr auto loFreqI = EqualizationFilter::loFreqI;
 
   const auto& lin = mParameters.mLin;
   const auto& curveName = mParameters.mCurveName;
   auto& loFreq = mParameters.mLoFreq;
   auto& hiFreq = mParameters.mHiFreq;
 
   int selcount = 0;
   double rate = 0.0;
 
   if (const auto project = FindProject())
   {
      auto trackRange = TrackList::Get(*project).Selected<const WaveTrack>();
      if (trackRange)
      {
         rate = (*(trackRange.first++))->GetRate();
         ++selcount;
 
         for (auto track : trackRange)
         {
            if (track->GetRate() != rate)
            {
               BasicUI::ShowMessageBox(XO(
                  "To apply Equalization, all selected tracks must have the same sample rate."));
               return (false);
            }
            ++selcount;
         }
      }
   }
   else
      // Editing macro parameters, use this default
      rate = 44100.0;
 
   hiFreq = rate / 2.0;
   // Unlikely, but better than crashing.
   if (hiFreq <= loFreqI)
   {
      BasicUI::ShowMessageBox(
         XO("Track sample rate is too low for this effect."));
      return (false);
   }
 
   loFreq = loFreqI;
 
   mCurvesList.setCurve(curveName);
 
   mParameters.CalcFilter();
 
   return (true);
}

References EqualizationFilter::CalcFilter(), EffectBase::FindProject(), TrackList::Get(), WaveTrack::GetRate(), EqualizationFilter::loFreqI, EqualizationParameters::mCurveName, mCurvesList, EqualizationFilter::mHiFreq, EqualizationParameters::mLin, EqualizationFilter::mLoFreq, mParameters, project, TrackList::Selected(), EqualizationCurvesList::setCurve(), BasicUI::ShowMessageBox(), and XO().

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◆ LoadFactoryDefaults()

OptionalMessage EqualizationBase::LoadFactoryDefaults ( EffectSettings & settings ) const

overridevirtual

Change settings back to "factory default"

Returns: nullopt for failure

Implements EffectSettingsManager.

Definition at line 152 of file EqualizationBase.cpp.

{
   // To do: externalize state so const_cast isn't needed
   if (!const_cast<EqualizationBase&>(*this).DoLoadFactoryDefaults(settings))
      return {};
   return { nullptr };
}

References DoLoadFactoryDefaults(), and settings().

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◆ LoadFactoryPreset()

OptionalMessage EqualizationBase::LoadFactoryPreset	(	int	id,
		EffectSettings &	settings
	)		const

overridevirtual

Change settings to the preset whose name is GetFactoryPresets()[id]

Returns: nullopt for failure

Implements EffectSettingsManager.

Definition at line 222 of file EqualizationBase.cpp.

{
   int index = -1;
   for (size_t i = 0; i < WXSIZEOF(FactoryPresets); i++)
   {
      if (
         (mOptions == kEqOptionGraphic) &&
         (FactoryPresets[i].bForBoth == false))
         continue;
      if (id-- == 0)
      {
         index = i;
         break;
      }
   }
   if (index < 0)
      return {};
 
   // mParams =
   wxString params = FactoryPresets[index].values;
 
   CommandParameters eap(params);
   ShuttleSetAutomation S;
   S.SetForWriting(&eap);
   // To do: externalize state so const_cast isn't needed
   if (!const_cast<EqualizationBase*>(this)->VisitSettings(S, settings))
      return {};
   return { nullptr };
}

References FactoryPresets, kEqOptionGraphic, mOptions, params, S, settings(), and VisitSettings().

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◆ ManualPage()

ManualPageID EqualizationBase::ManualPage ( ) const

overridevirtual

Name of a page in the Audacity alpha manual, default is empty.

Reimplemented from EffectDefinitionInterface.

Definition at line 83 of file EqualizationBase.cpp.

{
   // Bug 2509: Must use _ and not space in names.
   if (mOptions == kEqOptionGraphic)
      return L"Graphic_EQ";
   if (mOptions == kEqOptionCurve)
      return L"Filter_Curve_EQ";
   return L"Equalization";
}

References kEqOptionCurve, kEqOptionGraphic, and mOptions.

◆ Parameters()

const EffectParameterMethods & EqualizationBase::Parameters ( ) const

overrideprotectedvirtual

Reimplemented from Effect.

Definition at line 7 of file EqualizationBase.cpp.

{
   static CapturedParameters<
      EqualizationBase, EqualizationParameters::FilterLength,
      // CurveName,
      EqualizationParameters::InterpLin,
      // Pretty sure the interpolation name shouldn't have been interpreted when
      // specified in chains, but must keep it that way for compatibility.
      EqualizationParameters::InterpMeth>
      parameters { [](EqualizationBase& effect, EffectSettings&,
                      EqualizationParameters& params, bool updating) {
         constexpr auto nInterpolations =
            EqualizationParameters::nInterpolations;
         if (updating)
         {
            if (params.mInterp >= nInterpolations)
               params.mInterp -= nInterpolations;
         }
         return true;
      } };
   return parameters;
}

References EqualizationBase(), EqualizationParameters::FilterLength, EqualizationParameters::InterpLin, EqualizationParameters::InterpMeth, EqualizationParameters::nInterpolations, and params.

Referenced by EqualizationBase().

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◆ Process()

bool EqualizationBase::Process	(	EffectInstance &	instance,
		EffectSettings &	settings
	)

overridevirtual

Implements StatefulEffectBase.

Definition at line 308 of file EqualizationBase.cpp.

{
   EffectOutputTracks outputs { *mTracks, GetType(), { { mT0, mT1 } } };
   mParameters.CalcFilter();
   bool bGoodResult = true;
 
   int count = 0;
   for (auto track : outputs.Get().Selected<WaveTrack>())
   {
      double trackStart = track->GetStartTime();
      double trackEnd = track->GetEndTime();
      double t0 = mT0 < trackStart ? trackStart : mT0;
      double t1 = mT1 > trackEnd ? trackEnd : mT1;
 
      if (t1 > t0)
      {
         auto start = track->TimeToLongSamples(t0);
         auto end = track->TimeToLongSamples(t1);
         auto len = end - start;
 
         auto pTempTrack = track->EmptyCopy();
         pTempTrack->ConvertToSampleFormat(floatSample);
         auto iter0 = pTempTrack->Channels().begin();
 
         for (const auto pChannel : track->Channels())
         {
            constexpr auto windowSize = EqualizationFilter::windowSize;
            const auto& M = mParameters.mM;
 
            wxASSERT(M - 1 < windowSize);
            size_t L = windowSize - (M - 1); // Process L samples at a go
            auto s = start;
            auto idealBlockLen = pChannel->GetMaxBlockSize() * 4;
            if (idealBlockLen % L != 0)
               idealBlockLen += (L - (idealBlockLen % L));
            auto pNewChannel = *iter0++;
            Task task { M, idealBlockLen, *pNewChannel };
            bGoodResult = ProcessOne(task, count, *pChannel, start, len);
            if (!bGoodResult)
               goto done;
         }
         pTempTrack->Flush();
         // Remove trailing data from the temp track
         pTempTrack->Clear(t1 - t0, pTempTrack->GetEndTime());
         track->ClearAndPaste(t0, t1, *pTempTrack, true, true);
      }
 
      count++;
   }
done:
 
   if (bGoodResult)
      outputs.Commit();
 
   return bGoodResult;
}

References EqualizationFilter::CalcFilter(), details::end(), floatSample, GetType(), EqualizationParameters::mM, mParameters, EffectBase::mT0, EffectBase::mT1, EffectBase::mTracks, ProcessOne(), and EqualizationFilter::windowSize.

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◆ ProcessOne()

bool EqualizationBase::ProcessOne	(	Task &	task,
		int	count,
		const WaveChannel &	t,
		sampleCount	start,
		sampleCount	len
	)

protected

Definition at line 367 of file EqualizationBase.cpp.

{
   constexpr auto windowSize = EqualizationFilter::windowSize;
 
   const auto& M = mParameters.mM;
 
   wxASSERT(M - 1 < windowSize);
   size_t L = windowSize - (M - 1); // Process L samples at a go
   auto s = start;
 
   auto& buffer = task.buffer;
   auto& window1 = task.window1;
   auto& window2 = task.window2;
   auto& thisWindow = task.thisWindow;
   auto& lastWindow = task.lastWindow;
 
   auto originalLen = len;
 
   auto& output = task.output;
 
   TrackProgress(count, 0.);
   bool bLoopSuccess = true;
   size_t wcopy = 0;
 
   while (len != 0)
   {
      auto block = limitSampleBufferSize(task.idealBlockLen, len);
 
      t.GetFloats(buffer.get(), s, block);
 
      for (size_t i = 0; i < block;
           i += L) // go through block in lumps of length L
      {
         wcopy = std::min<size_t>(L, block - i);
         for (size_t j = 0; j < wcopy; j++)
            thisWindow[j] = buffer[i + j]; // copy the L (or remaining) samples
         for (auto j = wcopy; j < windowSize; j++)
            thisWindow[j] = 0; // this includes the padding
 
         mParameters.Filter(windowSize, thisWindow);
 
         // Overlap - Add
         for (size_t j = 0; (j < M - 1) && (j < wcopy); j++)
            buffer[i + j] = thisWindow[j] + lastWindow[L + j];
         for (size_t j = M - 1; j < wcopy; j++)
            buffer[i + j] = thisWindow[j];
 
         std::swap(thisWindow, lastWindow);
      } // next i, lump of this block
 
      task.AccumulateSamples((samplePtr)buffer.get(), block);
      len -= block;
      s += block;
 
      if (TrackProgress(
             count, (s - start).as_double() / originalLen.as_double()))
      {
         bLoopSuccess = false;
         break;
      }
   }
 
   if (bLoopSuccess)
   {
      // M-1 samples of 'tail' left in lastWindow, get them now
      if (wcopy < (M - 1))
      {
         // Still have some overlap left to process
         // (note that lastWindow and thisWindow have been exchanged at this
         // point
         //  so that 'thisWindow' is really the window prior to 'lastWindow')
         size_t j = 0;
         for (; j < M - 1 - wcopy; j++)
            buffer[j] = lastWindow[wcopy + j] + thisWindow[L + wcopy + j];
         // And fill in the remainder after the overlap
         for (; j < M - 1; j++)
            buffer[j] = lastWindow[wcopy + j];
      }
      else
      {
         for (size_t j = 0; j < M - 1; j++)
            buffer[j] = lastWindow[wcopy + j];
      }
      task.AccumulateSamples((samplePtr)buffer.get(), M - 1);
   }
   return bLoopSuccess;
}

Referenced by Process().

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◆ VisitSettings() [1/2]

bool EqualizationBase::VisitSettings	(	ConstSettingsVisitor &	visitor,
		const EffectSettings &	settings
	)		const

overridevirtual

Visit settings (read-only), if defined. false means no defined settings. Default implementation returns false

Reimplemented from EffectSettingsManager.

Definition at line 100 of file EqualizationBase.cpp.

{
   const auto& curves = mCurvesList.mCurves;
   Effect::VisitSettings(visitor, settings);
 
   // Curve point parameters -- how many isn't known statically
   if (dynamic_cast<ShuttleGetAutomation*>(&visitor))
   {
      int numPoints = curves[0].points.size();
      int point;
      for (point = 0; point < numPoints; point++)
      {
         const wxString nameFreq = wxString::Format("f%i", point);
         const wxString nameVal = wxString::Format("v%i", point);
         visitor.Define(
            curves[0].points[point].Freq, nameFreq, 0.0, 0.0, 0.0, 0.0);
         visitor.Define(
            curves[0].points[point].dB, nameVal, 0.0, 0.0, 0.0, 0.0);
      }
   }
   return true;
}

References SettingsVisitorBase< Const >::Define(), EqualizationCurvesList::mCurves, mCurvesList, settings(), and Effect::VisitSettings().

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◆ VisitSettings() [2/2]

bool EqualizationBase::VisitSettings	(	SettingsVisitor &	visitor,
		EffectSettings &	settings
	)

overridevirtual

Visit settings (and maybe change them), if defined. false means no defined settings. Default implementation returns false

Reimplemented from EffectSettingsManager.

Definition at line 124 of file EqualizationBase.cpp.

{
   auto& curves = mCurvesList.mCurves;
   Effect::VisitSettings(visitor, settings);
 
   // Curve point parameters -- how many isn't known statically
   {
      curves[0].points.clear();
 
      for (int i = 0; i < 200; i++)
      {
         const wxString nameFreq = wxString::Format("f%i", i);
         const wxString nameVal = wxString::Format("v%i", i);
         double f = -1000.0;
         double d = 0.0;
         visitor.Define(f, nameFreq, 0.0, -10000.0, 1000000.0, 0.0);
         visitor.Define(d, nameVal, 0.0, -10000.0, 10000.0, 0.0);
         if (f <= 0.0)
            break;
         curves[0].points.push_back(EQPoint(f, d));
      }
      mCurvesList.setCurve(0);
   }
   return true;
}

References SettingsVisitorBase< Const >::Define(), EqualizationCurvesList::mCurves, mCurvesList, EqualizationCurvesList::setCurve(), settings(), and Effect::VisitSettings().

Referenced by LoadFactoryPreset().

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Member Data Documentation

◆ mCurvesList

EqualizationCurvesList EqualizationBase::mCurvesList { mParameters }

protected

Definition at line 96 of file EqualizationBase.h.

Referenced by EqualizationBase(), Init(), and VisitSettings().

◆ mOptions

const int EqualizationBase::mOptions

protected

Definition at line 97 of file EqualizationBase.h.

Referenced by DoLoadFactoryDefaults(), EqualizationBase(), GetFactoryPresets(), EffectEqualization::GetSymbol(), LoadFactoryPreset(), and ManualPage().

◆ mParameters

EqualizationFilter EqualizationBase::mParameters

protected

Definition at line 95 of file EqualizationBase.h.

Referenced by DoLoadFactoryDefaults(), EqualizationBase(), FetchParameters(), Init(), Process(), and ProcessOne().

◆ Symbol

const ComponentInterfaceSymbol EqualizationBase::Symbol { XO("Equalization") }

static

Definition at line 19 of file EqualizationBase.h.

Referenced by EffectEqualization::GetSymbol().

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

Classes

Public Member Functions

Static Public Member Functions

Static Public Attributes

Protected Member Functions

Protected Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ EqualizationBase()

◆ ~EqualizationBase()

Member Function Documentation

◆ DoLoadFactoryDefaults()

◆ FetchParameters()

◆ GetDescription()

◆ GetFactoryPresets()

◆ GetType()

◆ Init()

◆ LoadFactoryDefaults()

◆ LoadFactoryPreset()

◆ ManualPage()

◆ Parameters()

◆ Process()

◆ ProcessOne()

◆ VisitSettings() [1/2]

◆ VisitSettings() [2/2]

Member Data Documentation

◆ mCurvesList

◆ mOptions

◆ mParameters

◆ Symbol