An effect that generates DTMF tones. More...

#include <DtmfGen.h>

Inheritance diagram for EffectDtmf:

Collaboration diagram for EffectDtmf:

Classes
struct	Editor

struct	Instance
	Temporary state of the computation. More...

Public Member Functions
	EffectDtmf ()

virtual	~EffectDtmf ()

ComponentInterfaceSymbol	GetSymbol () const override

TranslatableString	GetDescription () const override

ManualPageID	ManualPage () const override
	Name of a page in the Audacity alpha manual, default is empty. More...

EffectType	GetType () const override
	Type determines how it behaves. More...

std::unique_ptr< EffectEditor >	MakeEditor (ShuttleGui &S, EffectInstance &instance, EffectSettingsAccess &access, const EffectOutputs *pOutputs) const override
	Called only from PopulateUI, to add controls to effect panel. More...

std::shared_ptr< EffectInstance >	MakeInstance () const override
	Make an object maintaining short-term state of an Effect. More...

Public Member Functions inherited from EffectWithSettings< DtmfSettings, StatelessPerTrackEffect >
EffectSettings	MakeSettings () const override

bool	CopySettingsContents (const EffectSettings &src, EffectSettings &dst) const override

Public Member Functions inherited from StatelessPerTrackEffect
	~StatelessPerTrackEffect () override

Public Member Functions inherited from PerTrackEffect
	~PerTrackEffect () override

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

EffectType	GetType () const override
	Type determines how it behaves. More...

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 NumericFormatSymbol	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)
	Re-invoke DoEffect on another Effect object that implements the work. More...

Public Member Functions inherited from EffectBase
	EffectBase ()

	~EffectBase () override

void	SetTracks (TrackList *pTracks)

bool	DoEffect (EffectSettings &settings, const InstanceFinder &finder, double projectRate, TrackList list, WaveTrackFactory factory, NotifyingSelectedRegion &selectedRegion, unsigned flags, const EffectSettingsAccessPtr &pAccess) override

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 void	Preview (EffectSettingsAccess &access, std::function< void()> updateUI, bool dryOnly)=0
	Calculate temporary tracks of limited length with effect applied and play. More...

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 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

Public Member Functions inherited from StatelessEffectUIServices
std::unique_ptr< EffectEditor >	PopulateUI (const EffectPlugin &plugin, ShuttleGui &S, EffectInstance &instance, EffectSettingsAccess &access, const EffectOutputs *pOutputs) const override
	Adds controls to a panel that is given as the parent window of `S` More...

virtual std::unique_ptr< EffectEditor >	MakeEditor (ShuttleGui &S, EffectInstance &instance, EffectSettingsAccess &access, const EffectOutputs *pOutputs) const =0
	Called only from PopulateUI, to add controls to effect panel. More...

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 (EffectPlugin &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< EffectEditor >	PopulateUI (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 Attributes
static const ComponentInterfaceSymbol	Symbol { XO("DTMF Tones") }

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>")

Private Member Functions
const EffectParameterMethods &	Parameters () const override

Static Private Member Functions
static bool	MakeDtmfTone (float *buffer, size_t len, float fs, wxChar tone, sampleCount last, sampleCount total, float amplitude)

Static Private Attributes
static constexpr EffectParameter	Sequence

static constexpr EffectParameter	DutyCycle

static constexpr EffectParameter	Amplitude

Additional Inherited Members
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 }

Static Public Member Functions inherited from EffectWithSettings< DtmfSettings, StatelessPerTrackEffect >
static DtmfSettings &	GetSettings (EffectSettings &settings)
	Assume settings originated from MakeSettings() and copies thereof. More...

static const DtmfSettings &	GetSettings (const EffectSettings &settings)
	Assume settings originated from MakeSettings() and copies thereof. More...

static DtmfSettings *	FetchParameters (StatelessPerTrackEffect &, EffectSettings &s)

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

static void	IncEffectCounter ()

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
TrackList *	mTracks {}

Protected Member Functions inherited from PerTrackEffect
bool	DoPass1 () const

bool	DoPass2 () const

bool	Process (EffectInstance &instance, EffectSettings &settings) const

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, const WaveTrack pRight, sampleCount start, sampleCount *len)

void	CopyInputTracks (bool allSyncLockSelected=false)

Track *	AddToOutputTracks (const std::shared_ptr< Track > &t)

Protected Member Functions inherited from EffectBase
virtual std::any	BeginPreview (const EffectSettings &settings)
	Called when Preview() starts, to allow temporary effect state changes. More...

void	Preview (EffectSettingsAccess &access, std::function< void()> updateUI, bool dryOnly) final
	Calculate temporary tracks of limited length with effect applied and play. More...

virtual bool	CheckWhetherSkipEffect (const EffectSettings &settings) const =0
	After Init(), tell whether Process() should be skipped. More...

virtual double	CalcPreviewInputLength (const EffectSettings &settings, double previewLength) const =0

void	SetLinearEffectFlag (bool linearEffectFlag)

void	SetPreviewFullSelectionFlag (bool previewDurationFlag)

bool	IsPreviewing () const

void	IncludeNotSelectedPreviewTracks (bool includeNotSelected)

void	ReplaceProcessedTracks (const bool bGoodResult)

const TrackList *	inputTracks () const

const AudacityProject *	FindProject () const

Protected Attributes inherited from PerTrackEffect
sampleCount	mSampleCnt {}

Protected Attributes inherited from EffectBase
BasicUI::ProgressDialog *	mProgress {}

double	mProjectRate {}

WaveTrackFactory *	mFactory {}

std::shared_ptr< TrackList >	mOutputTracks

double	mT0 {}

double	mT1 {}

wxArrayString	mPresetNames

unsigned	mUIFlags { 0 }

Static Protected Attributes inherited from EffectBase
static int	nEffectsDone = 0

Detailed Description

An effect that generates DTMF tones.

Definition at line 41 of file DtmfGen.h.

Constructor & Destructor Documentation

◆ EffectDtmf()

EffectDtmf::EffectDtmf ( )

Definition at line 90 of file DtmfGen.cpp.

91{

92}

Referenced by Parameters().

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◆ ~EffectDtmf()

EffectDtmf::~EffectDtmf ( )

virtual

Definition at line 94 of file DtmfGen.cpp.

95{

96}

Member Function Documentation

◆ GetDescription()

TranslatableString EffectDtmf::GetDescription ( ) const

overridevirtual

Implements ComponentInterface.

Definition at line 105 of file DtmfGen.cpp.

{
   return XO("Generates dual-tone multi-frequency (DTMF) tones like those produced by the keypad on telephones");
}

References XO().

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◆ GetSymbol()

ComponentInterfaceSymbol EffectDtmf::GetSymbol ( ) const

overridevirtual

Implements ComponentInterface.

Definition at line 100 of file DtmfGen.cpp.

{
   return Symbol;
}

References Symbol.

◆ GetType()

EffectType EffectDtmf::GetType ( ) const

overridevirtual

Type determines how it behaves.

Implements EffectDefinitionInterface.

Definition at line 117 of file DtmfGen.cpp.

{
   return EffectTypeGenerate;
}

References EffectTypeGenerate.

◆ MakeDtmfTone()

bool EffectDtmf::MakeDtmfTone	(	float *	buffer,
		size_t	len,
		float	fs,
		wxChar	tone,
		sampleCount	last,
		sampleCount	total,
		float	amplitude
	)

staticprivate

Definition at line 518 of file DtmfGen.cpp.

{
/*
  --------------------------------------------
              1209 Hz 1336 Hz 1477 Hz 1633 Hz
 
                          ABC     DEF
   697 Hz          1       2       3       A
 
                  GHI     JKL     MNO
   770 Hz          4       5       6       B
 
                  PQRS     TUV     WXYZ
   852 Hz          7       8       9       C
 
                          oper
   941 Hz          *       0       #       D
  --------------------------------------------
  Essentially we need to generate two sin with
  frequencies according to this table, and sum
  them up.
  sin wave is generated by:
   s(n)=sin(2*pi*n*f/fs)
 
  We will precalculate:
     A= 2*pi*f1/fs
     B= 2*pi*f2/fs
 
  And use two switch statements to select the frequency
 
  Note: added support for letters, like those on the keypad
        This support is only for lowercase letters: uppercase
        are still considered to be the 'military'/carrier extra
        tones.
*/
 
   float f1, f2=0.0;
   double A,B;
 
   // select low tone: left column
   switch (tone) {
      case '1':   case '2':   case '3':   case 'A':
      case 'a':   case 'b':   case 'c':
      case 'd':   case 'e':   case 'f':
         f1=697;
         break;
      case '4':   case '5':   case '6':   case 'B':
      case 'g':   case 'h':   case 'i':
      case 'j':   case 'k':   case 'l':
      case 'm':   case 'n':   case 'o':
         f1=770;
         break;
      case '7':   case '8':   case '9':   case 'C':
      case 'p':   case 'q':   case 'r':   case 's':
      case 't':   case 'u':   case 'v':
      case 'w':   case 'x':   case 'y':   case 'z':
         f1=852;
         break;
      case '*':   case '0':   case '#':   case 'D':
         f1=941;
         break;
      default:
         f1=0;
   }
 
   // select high tone: top row
   switch (tone) {
      case '1':   case '4':   case '7':   case '*':
      case 'g':   case 'h':   case 'i':
      case 'p':   case 'q':   case 'r':   case 's':
         f2=1209;
         break;
      case '2':   case '5':   case '8':   case '0':
      case 'a':   case 'b':   case 'c':
      case 'j':   case 'k':   case 'l':
      case 't':   case 'u':   case 'v':
         f2=1336;
         break;
      case '3':   case '6':   case '9':   case '#':
      case 'd':   case 'e':   case 'f':
      case 'm':   case 'n':   case 'o':
      case 'w':   case 'x':   case 'y':   case 'z':
         f2=1477;
         break;
      case 'A':   case 'B':   case 'C':   case 'D':
         f2=1633;
         break;
      default:
         f2=0;
   }
 
   // precalculations
   A=B=2*M_PI/fs;
   A*=f1;
   B*=f2;
 
   // now generate the wave: 'last' is used to avoid phase errors
   // when inside the inner for loop of the Process() function.
   for(decltype(len) i = 0; i < len; i++) {
      buffer[i] = amplitude * 0.5 *
         (sin( A * (i + last).as_double() ) +
          sin( B * (i + last).as_double() ));
   }
 
   // generate a fade-in of duration 1/250th of second
   if (last == 0) {
      A = wxMin(len, (fs / kFadeInOut));
      for(size_t i = 0; i < A; i++) {
         buffer[i] *= i/A;
      }
   }
 
   // generate a fade-out of duration 1/250th of second
   if (last >= total - len) {
      // we are at the last buffer of 'len' size, so, offset is to
      // backup 'A' samples, from 'len'
      A = wxMin(len, (fs / kFadeInOut));
      size_t offset = len - A;
      wxASSERT(offset >= 0);
      for(size_t i = 0; i < A; i++) {
         buffer[i + offset] *= (1 - (i / A));
      }
   }
   return true;
}

References A, kFadeInOut, and M_PI.

Referenced by EffectDtmf::Instance::ProcessBlock().

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◆ MakeEditor()

std::unique_ptr< EffectEditor > EffectDtmf::MakeEditor	(	ShuttleGui &	S,
		EffectInstance &	instance,
		EffectSettingsAccess &	access,
		const EffectOutputs *	pOutputs
	)		const

overridevirtual

Called only from PopulateUI, to add controls to effect panel.

Returns: also returned from PopulateUI

Postcondition: result: result != nullptr

Implements StatelessEffectUIServices.

Definition at line 414 of file DtmfGen.cpp.

{
   auto &settings = access.Get();
   auto &dtmfSettings = GetSettings(settings);
   auto result = std::make_unique<Editor>(*this, access, dtmfSettings);
   result->PopulateOrExchange(S, settings, mProjectRate);
   return result;
}

References EffectSettingsAccess::Get(), EffectWithSettings< DtmfSettings, StatelessPerTrackEffect >::GetSettings(), EffectBase::mProjectRate, S, and settings().

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◆ MakeInstance()

std::shared_ptr< EffectInstance > EffectDtmf::MakeInstance ( ) const

overridevirtual

Make an object maintaining short-term state of an Effect.

One effect may have multiple instances extant simultaneously. Instances have state, may be implemented in foreign code, and are temporary, whereas EffectSettings represents persistent effect state that can be saved and reloaded from files.

Parameters

settings may be assumed to have a lifetime enclosing the instance's

Postcondition: true (no promises that the result isn't null)

Implements EffectInstanceFactory.

Definition at line 425 of file DtmfGen.cpp.

{
   // TODO: don't use Effect::mT0 and Effect::mSampleRate, but use an
   // EffectContext (that class is not yet defined)
   return std::make_shared<Instance>(*this, mT0);
}

References EffectBase::mT0.

◆ ManualPage()

ManualPageID EffectDtmf::ManualPage ( ) const

overridevirtual

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

Reimplemented from EffectDefinitionInterface.

Definition at line 110 of file DtmfGen.cpp.

{
   return L"DTMF_Tones";
}

◆ Parameters()

const EffectParameterMethods & EffectDtmf::Parameters ( ) const

overrideprivatevirtual

Reimplemented from Effect.

Definition at line 36 of file DtmfGen.cpp.

{
   static CapturedParameters<EffectDtmf,
      Sequence, DutyCycle, Amplitude
   > parameters{
      [](EffectDtmf &, EffectSettings &es, DtmfSettings &s, bool updating){
         if (updating) {
            if (s.dtmfSequence.find_first_not_of(AllSymbols())
                != wxString::npos)
               return false;
            s.Recalculate(es);
         }
         return true;
      },
   };
   return parameters;
}