RageSoundReader_PitchChange.h

/* RageSoundReader_PitchChange - change the pitch and speed of an audio stream
 * independently. */
 
#ifndef RAGE_SOUND_READER_PITCH_CHANGE_H
#define RAGE_SOUND_READER_PITCH_CHANGE_H
 
#include "RageSoundReader_Filter.h"
 
class RageSoundReader_SpeedChange;
class RageSoundReader_SpeedChange_Good;
class RageSoundReader_Resample_Good;
 
class RageSoundReader_PitchChange : public RageSoundReader_Filter
{
  public:
    RageSoundReader_PitchChange(RageSoundReader* pSource);
    RageSoundReader_PitchChange(const RageSoundReader_PitchChange& cpy);
 
    int Read(float* pBuf, int iFrames) override;
    bool SetProperty(const std::string& sProperty, float fValue) override;
 
    void SetSpeedRatio(float fRatio) { m_fSpeedRatio = fRatio; }
    void SetPitchRatio(float fRatio) { m_fPitchRatio = fRatio; }
 
    RageSoundReader_PitchChange* Copy() const override
    {
        return new RageSoundReader_PitchChange(*this);
    }
 
  private:
    RageSoundReader_SpeedChange*
      m_pSpeedChange; // freed by RageSoundReader_Filter
    RageSoundReader_SpeedChange_Good*
      m_pSpeedChangeGood; // freed by RageSoundReader_Filter
    RageSoundReader_Resample_Good*
      m_pResample; // freed by RageSoundReader_Filter
 
    float m_fSpeedRatio;
    float m_fPitchRatio;
    float m_fLastSetSpeedRatio;
    float m_fLastSetPitchRatio;
    // Swallow up warnings. If they must be used, define them.
    RageSoundReader_PitchChange& operator=(
      const RageSoundReader_PitchChange& rhs) = delete;
};
 
#endif