Chris@10: /* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */
Chris@10: 
Chris@10: /*
Chris@10:     Rubber Band Library
Chris@10:     An audio time-stretching and pitch-shifting library.
Chris@10:     Copyright 2007-2012 Particular Programs Ltd.
Chris@10: 
Chris@10:     This program is free software; you can redistribute it and/or
Chris@10:     modify it under the terms of the GNU General Public License as
Chris@10:     published by the Free Software Foundation; either version 2 of the
Chris@10:     License, or (at your option) any later version.  See the file
Chris@10:     COPYING included with this distribution for more information.
Chris@10: 
Chris@10:     Alternatively, if you have a valid commercial licence for the
Chris@10:     Rubber Band Library obtained by agreement with the copyright
Chris@10:     holders, you may redistribute and/or modify it under the terms
Chris@10:     described in that licence.
Chris@10: 
Chris@10:     If you wish to distribute code using the Rubber Band Library
Chris@10:     under terms other than those of the GNU General Public License,
Chris@10:     you must obtain a valid commercial licence before doing so.
Chris@10: */
Chris@10: 
Chris@10: #ifndef _RUBBERBAND_PITCH_SHIFTER_H_
Chris@10: #define _RUBBERBAND_PITCH_SHIFTER_H_
Chris@10: 
Chris@10: #include <ladspa.h>
Chris@10: 
Chris@10: #include "base/RingBuffer.h"
Chris@10: 
Chris@10: namespace RubberBand {
Chris@10: class RubberBandStretcher;
Chris@10: }
Chris@10: 
Chris@10: class RubberBandPitchShifter
Chris@10: {
Chris@10: public:
Chris@10:     static const LADSPA_Descriptor *getDescriptor(unsigned long index);
Chris@10:     
Chris@10: protected:
Chris@10:     RubberBandPitchShifter(int sampleRate, size_t channels);
Chris@10:     ~RubberBandPitchShifter();
Chris@10: 
Chris@10:     enum {
Chris@10:         LatencyPort      = 0,
Chris@10: 	OctavesPort      = 1,
Chris@10: 	SemitonesPort    = 2,
Chris@10: 	CentsPort        = 3,
Chris@10:         CrispnessPort    = 4,
Chris@10: 	FormantPort      = 5,
Chris@10: 	FastPort         = 6,
Chris@10: 	InputPort1       = 7,
Chris@10:         OutputPort1      = 8,
Chris@10:         PortCountMono    = OutputPort1 + 1,
Chris@10:         InputPort2       = 9,
Chris@10:         OutputPort2      = 10,
Chris@10:         PortCountStereo  = OutputPort2 + 1
Chris@10:     };
Chris@10: 
Chris@10:     static const char *const portNamesMono[PortCountMono];
Chris@10:     static const LADSPA_PortDescriptor portsMono[PortCountMono];
Chris@10:     static const LADSPA_PortRangeHint hintsMono[PortCountMono];
Chris@10: 
Chris@10:     static const char *const portNamesStereo[PortCountStereo];
Chris@10:     static const LADSPA_PortDescriptor portsStereo[PortCountStereo];
Chris@10:     static const LADSPA_PortRangeHint hintsStereo[PortCountStereo];
Chris@10: 
Chris@10:     static const LADSPA_Properties properties;
Chris@10: 
Chris@10:     static const LADSPA_Descriptor ladspaDescriptorMono;
Chris@10:     static const LADSPA_Descriptor ladspaDescriptorStereo;
Chris@10: 
Chris@10:     static LADSPA_Handle instantiate(const LADSPA_Descriptor *, unsigned long);
Chris@10:     static void connectPort(LADSPA_Handle, unsigned long, LADSPA_Data *);
Chris@10:     static void activate(LADSPA_Handle);
Chris@10:     static void run(LADSPA_Handle, unsigned long);
Chris@10:     static void deactivate(LADSPA_Handle);
Chris@10:     static void cleanup(LADSPA_Handle);
Chris@10: 
Chris@10:     void activateImpl();
Chris@10:     void runImpl(unsigned long);
Chris@10:     void runImpl(unsigned long, unsigned long offset);
Chris@10:     void updateRatio();
Chris@10:     void updateCrispness();
Chris@10:     void updateFormant();
Chris@10:     void updateFast();
Chris@10: 
Chris@10:     float *m_input[2];
Chris@10:     float *m_output[2];
Chris@10:     float *m_latency;
Chris@10:     float *m_cents;
Chris@10:     float *m_semitones;
Chris@10:     float *m_octaves;
Chris@10:     float *m_crispness;
Chris@10:     float *m_formant;
Chris@10:     float *m_fast;
Chris@10:     double m_ratio;
Chris@10:     double m_prevRatio;
Chris@10:     int m_currentCrispness;
Chris@10:     bool m_currentFormant;
Chris@10:     bool m_currentFast;
Chris@10: 
Chris@10:     size_t m_blockSize;
Chris@10:     size_t m_reserve;
Chris@10:     size_t m_minfill;
Chris@10: 
Chris@10:     RubberBand::RubberBandStretcher *m_stretcher;
Chris@10:     RubberBand::RingBuffer<float> *m_outputBuffer[2];
Chris@10:     float *m_scratch[2];
Chris@10: 
Chris@10:     int m_sampleRate;
Chris@10:     size_t m_channels;
Chris@10: };
Chris@10: 
Chris@10: 
Chris@10: #endif