67cec5ad83
... And in some places where a library uses signed types, assert that the reported number is not negative. What led me to this, is that there are many places where a size_t value for an allocation is the product of a number of channels and some other number.
105 lines
3.2 KiB
C++
105 lines
3.2 KiB
C++
/**********************************************************************
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Audacity: A Digital Audio Editor
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DtmfGen.h
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Salvo Ventura
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Dec 2006
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An effect that generates DTMF tones
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**********************************************************************/
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#ifndef __AUDACITY_EFFECT_DTMF__
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#define __AUDACITY_EFFECT_DTMF__
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#include <wx/event.h>
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#include <wx/slider.h>
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#include <wx/stattext.h>
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#include <wx/string.h>
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#include "../widgets/NumericTextCtrl.h"
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#include "Effect.h"
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class ShuttleGui;
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#define DTMFTONES_PLUGIN_SYMBOL XO("DTMF Tones")
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class EffectDtmf final : public Effect
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{
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public:
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EffectDtmf();
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virtual ~EffectDtmf();
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// IdentInterface implementation
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wxString GetSymbol() override;
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wxString GetDescription() override;
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// EffectIdentInterface implementation
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EffectType GetType() override;
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// EffectClientInterface implementation
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unsigned GetAudioOutCount() override;
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bool ProcessInitialize(sampleCount totalLen, ChannelNames chanMap = NULL) override;
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sampleCount ProcessBlock(float **inBlock, float **outBlock, sampleCount blockLen) override;
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bool GetAutomationParameters(EffectAutomationParameters & parms) override;
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bool SetAutomationParameters(EffectAutomationParameters & parms) override;
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// Effect implementation
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bool Startup() override;
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bool Init() override;
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void PopulateOrExchange(ShuttleGui & S) override;
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bool TransferDataFromWindow() override;
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bool TransferDataToWindow() override;
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private:
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// EffectDtmf implementation
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bool MakeDtmfTone(float *buffer, sampleCount len, float fs,
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wxChar tone, sampleCount last,
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sampleCount total, float amplitude);
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void Recalculate();
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void UpdateUI();
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void OnSequence(wxCommandEvent & evt);
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void OnAmplitude(wxCommandEvent & evt);
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void OnDuration(wxCommandEvent & evt);
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void OnDutyCycle(wxCommandEvent & evt);
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private:
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sampleCount numSamplesSequence; // total number of samples to generate
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sampleCount numSamplesTone; // number of samples in a tone block
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sampleCount numSamplesSilence; // number of samples in a silence block
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sampleCount diff; // number of extra samples to redistribute
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sampleCount numRemaining; // number of samples left to produce in the current block
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sampleCount curTonePos; // position in tone to start the wave
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bool isTone; // true if block is tone, otherwise silence
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int curSeqPos; // index into dtmf tone string
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wxString dtmfSequence; // dtmf tone string
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int dtmfNTones; // total number of tones to generate
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double dtmfTone; // duration of a single tone in ms
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double dtmfSilence; // duration of silence between tones in ms
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double dtmfDutyCycle; // ratio of dtmfTone/(dtmfTone+dtmfSilence)
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double dtmfAmplitude; // amplitude of dtmf tone sequence, restricted to (0-1)
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wxTextCtrl *mDtmfSequenceT;
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wxTextCtrl *mDtmfAmplitudeT;
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wxSlider *mDtmfDutyCycleS;
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NumericTextCtrl *mDtmfDurationT;
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wxStaticText *mDtmfToneT;
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wxStaticText *mDtmfSilenceT;
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wxStaticText *mDtmfDutyT;
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DECLARE_EVENT_TABLE();
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};
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#endif
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