SBSMSBase.h

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/**********************************************************************
 
  Audacity: A Digital Audio Editor
 
  SBSMSBase.h
 
  ClaytonOtey
 
  This abstract class contains all of the common code for an
  effect that uses SBSMS to do its processing (TimeScale)
 
**********************************************************************/
 
#ifndef __AUDACITY_EFFECT_SBSMS__
#define __AUDACITY_EFFECT_SBSMS__
 
 
 
#if USE_SBSMS
 
#include "StatefulEffect.h"
#include <sbsms.h>
 
using namespace _sbsms_;
 
class LabelTrack;
class TimeWarper;
 
class BUILTIN_EFFECTS_API SBSMSBase /* not final */ : public StatefulEffect
{
public:
   bool Process(EffectInstance &instance, EffectSettings &settings) override;
   void setParameters(double rateStart, double rateEnd, double pitchStart, double pitchEnd,
                      SlideType rateSlideType, SlideType pitchSlideType,
                      bool bLinkRatePitch, bool bRateReferenceInput, bool bPitchReferenceInput);
   void setParameters(double tempoRatio, double pitchRatio);  // Constant ratio (tempoRatio, pitchRatio)
   static double getInvertedStretchedTime(double rateStart, double rateEnd, SlideType slideType, double outputTime);
   static double getRate(double rateStart, double rateEnd, SlideType slideType, double t);
 
protected:
   TranslatableString mProxyEffectName { XO("SBSMS Time / Pitch Stretch") };
   // This supplies the abstract virtual function, but in fact this symbol
   // does not get used:  this class is either a temporary helper, or else
   // GetSymbol() is overridden further in derived classes.
   ComponentInterfaceSymbol GetSymbol() const override { return mProxyEffectName; }
 
private:
   EffectType GetType() const override;
 
   bool ProcessLabelTrack(LabelTrack *track);
   void Finalize(
      WaveTrack &orig, const WaveTrack &out, const TimeWarper &warper);
 
   double rateStart, rateEnd, pitchStart, pitchEnd;
   bool bLinkRatePitch, bRateReferenceInput, bPitchReferenceInput;
   SlideType rateSlideType;
   SlideType pitchSlideType;
   int mCurTrackNum;
   float mTotalStretch;
 
   friend class ChangeTempoBase;
   friend class ChangePitchBase;
};
 
#endif
 
#endif