188 lines
4.1 KiB
C++
188 lines
4.1 KiB
C++
/**********************************************************************
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Audacity: A Digital Audio Editor
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Compressor.h
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Dominic Mazzoni
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**********************************************************************/
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#ifndef __AUDACITY_EFFECT_COMPRESSOR__
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#define __AUDACITY_EFFECT_COMPRESSOR__
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class wxString;
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#include <wx/defs.h>
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#include <wx/bitmap.h>
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#include <wx/button.h>
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#include <wx/checkbox.h>
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#include <wx/slider.h>
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#include <wx/panel.h>
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#include <wx/sizer.h>
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#include <wx/stattext.h>
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#include <wx/intl.h>
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#include "TwoPassSimpleMono.h"
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class WaveTrack;
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class EffectCompressor: public EffectTwoPassSimpleMono {
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public:
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EffectCompressor();
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virtual ~EffectCompressor();
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virtual wxString GetEffectName() {
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return wxString(_("Compressor..."));
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}
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virtual std::set<wxString> GetEffectCategories() {
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std::set<wxString> result;
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result.insert(wxT("http://lv2plug.in/ns/lv2core#CompressorPlugin"));
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return result;
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}
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virtual wxString GetEffectIdentifier() {
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return wxString(wxT("Compressor"));
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}
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virtual wxString GetEffectAction() {
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return wxString(_("Applying Dynamic Range Compression..."));
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}
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virtual bool Init();
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virtual bool PromptUser();
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virtual bool TransferParameters( Shuttle & shuttle );
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protected:
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virtual bool TwoBufferProcessPass1(float *buffer1, sampleCount len1, float *buffer2, sampleCount len2);
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virtual bool ProcessPass2(float *buffer, sampleCount len);
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private:
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virtual bool NewTrackPass1();
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virtual bool InitPass1();
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virtual bool InitPass2();
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void FreshenCircle();
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float AvgCircle(float x);
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double mRMSSum;
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int mCircleSize;
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int mCirclePos;
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double *mCircle;
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void Follow(float *buffer, float *env, int len, float *previous, int previous_len);
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float DoCompression(float x, double env);
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double mAttackTime;
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double mThresholdDB;
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double mNoiseFloorDB;
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double mRatio;
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bool mNormalize; //MJS
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bool mUsePeak;
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double mDecayTime;
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double mAttackFactor;
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double mAttackInverseFactor;
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double mDecayFactor;
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double mThreshold;
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double mCompression;
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double mNoiseFloor;
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int mNoiseCounter;
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double mGain;
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double mLastLevel;
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float *mFollow1;
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float *mFollow2;
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sampleCount mFollowLen;
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double mMax; //MJS
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friend class CompressorDialog;
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};
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class CompressorPanel: public wxPanel
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{
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public:
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CompressorPanel( wxWindow *parent, wxWindowID id,
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const wxPoint& pos = wxDefaultPosition,
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const wxSize& size = wxDefaultSize);
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void OnPaint(wxPaintEvent & event);
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double threshold;
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double noisefloor;
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double ratio;
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private:
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wxBitmap *mBitmap;
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wxRect mEnvRect;
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int mWidth;
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int mHeight;
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DECLARE_EVENT_TABLE()
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};
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// WDR: class declarations
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//----------------------------------------------------------------------------
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// CompressorDialog
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//----------------------------------------------------------------------------
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class CompressorDialog: public EffectDialog
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{
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public:
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// constructors and destructors
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CompressorDialog( EffectCompressor *effect, wxWindow *parent);
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void PopulateOrExchange(ShuttleGui & S);
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bool TransferDataToWindow();
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bool TransferDataFromWindow();
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double threshold;
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double noisefloor;
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double ratio;
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double attack;
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double decay;
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bool useGain;
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bool usePeak;
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private:
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void OnSize( wxSizeEvent &event );
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void OnSlider( wxCommandEvent &event );
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void OnPreview( wxCommandEvent &event );
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EffectCompressor *mEffect;
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CompressorPanel *mPanel;
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wxStaticText *mThresholdLabel;
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wxSlider *mThresholdSlider;
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wxStaticText *mThresholdText;
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wxStaticText *mNoiseFloorLabel;
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wxSlider *mNoiseFloorSlider;
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wxStaticText *mNoiseFloorText;
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wxStaticText *mRatioLabel;
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wxSlider *mRatioSlider;
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wxStaticText *mRatioText;
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wxStaticText *mAttackLabel;
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wxSlider *mAttackSlider;
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wxStaticText *mAttackText;
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wxStaticText *mDecayLabel;
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wxSlider *mDecaySlider;
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wxStaticText *mDecayText;
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wxCheckBox *mGainCheckBox;
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wxCheckBox *mPeakCheckBox;
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private:
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DECLARE_EVENT_TABLE()
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};
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#endif
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