mirror of
https://github.com/cookiengineer/audacity
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466e9c179e
It combines the old IdentInterface with the ParamsInterface, providing an identifier and parameters (if needed). The main purpose of the change is to make the class hierarchy (as viewed via doxygen) much easier to follow.
129 lines
3.7 KiB
C++
129 lines
3.7 KiB
C++
/**********************************************************************
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Audacity: A Digital Audio Editor
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Audacity(R) is copyright (c) 1999-2016 Audacity Team.
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License: GPL v2. See License.txt.
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BassTreble.h (two shelf filters)
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Steve Daulton
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**********************************************************************/
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#ifndef __AUDACITY_EFFECT_BASS_TREBLE__
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#define __AUDACITY_EFFECT_BASS_TREBLE__
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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 <wx/textctrl.h>
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#include <wx/checkbox.h>
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#include "Effect.h"
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class ShuttleGui;
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#define BASSTREBLE_PLUGIN_SYMBOL ComponentInterfaceSymbol{ XO("Bass and Treble") }
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class EffectBassTrebleState
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{
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public:
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float samplerate;
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double treble;
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double bass;
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double gain;
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double slope, hzBass, hzTreble;
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double a0Bass, a1Bass, a2Bass, b0Bass, b1Bass, b2Bass;
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double a0Treble, a1Treble, a2Treble, b0Treble, b1Treble, b2Treble;
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double xn1Bass, xn2Bass, yn1Bass, yn2Bass;
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double xn1Treble, xn2Treble, yn1Treble, yn2Treble;
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};
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class EffectBassTreble final : public Effect
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{
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public:
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EffectBassTreble();
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virtual ~EffectBassTreble();
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// ComponentInterface implementation
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ComponentInterfaceSymbol GetSymbol() override;
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wxString GetDescription() override;
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wxString ManualPage() override;
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// EffectDefinitionInterface implementation
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EffectType GetType() override;
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bool SupportsRealtime() override;
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// EffectClientInterface implementation
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unsigned GetAudioInCount() override;
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unsigned GetAudioOutCount() override;
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bool ProcessInitialize(sampleCount totalLen, ChannelNames chanMap = NULL) override;
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size_t ProcessBlock(float **inBlock, float **outBlock, size_t blockLen) override;
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bool RealtimeInitialize() override;
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bool RealtimeAddProcessor(unsigned numChannels, float sampleRate) override;
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bool RealtimeFinalize() override;
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size_t RealtimeProcess(int group,
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float **inbuf,
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float **outbuf,
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size_t numSamples) override;
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bool DefineParams( ShuttleParams & S ) override;
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bool GetAutomationParameters(CommandParameters & parms) override;
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bool SetAutomationParameters(CommandParameters & parms) override;
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// Effect Implementation
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void PopulateOrExchange(ShuttleGui & S) override;
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bool TransferDataToWindow() override;
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bool TransferDataFromWindow() override;
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bool CheckWhetherSkipEffect() override;
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private:
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// EffectBassTreble implementation
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void InstanceInit(EffectBassTrebleState & data, float sampleRate);
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size_t InstanceProcess(EffectBassTrebleState & data, float **inBlock, float **outBlock, size_t blockLen);
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void Coefficents(double hz, double slope, double gain, double samplerate, int type,
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double& a0, double& a1, double& a2, double& b0, double& b1, double& b2);
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float DoFilter(EffectBassTrebleState & data, float in);
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void OnBassText(wxCommandEvent & evt);
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void OnTrebleText(wxCommandEvent & evt);
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void OnGainText(wxCommandEvent & evt);
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void OnBassSlider(wxCommandEvent & evt);
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void OnTrebleSlider(wxCommandEvent & evt);
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void OnGainSlider(wxCommandEvent & evt);
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void OnLinkCheckbox(wxCommandEvent & evt);
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// Auto-adjust gain to reduce variation in peak level
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void UpdateGain(double oldVal, int control );
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private:
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EffectBassTrebleState mMaster;
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std::vector<EffectBassTrebleState> mSlaves;
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double mBass;
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double mTreble;
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double mGain;
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bool mLink;
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wxSlider *mBassS;
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wxSlider *mTrebleS;
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wxSlider *mGainS;
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wxTextCtrl *mBassT;
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wxTextCtrl *mTrebleT;
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wxTextCtrl *mGainT;
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wxCheckBox *mLinkCheckBox;
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DECLARE_EVENT_TABLE()
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};
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#endif
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