* Initial import

rubberband/RubberBandStretcher.h

@@ -0,0 +1,106 @@
+/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */
+
+/*
+    Rubber Band
+    An audio time-stretching and pitch-shifting library.
+    Copyright 2007 Chris Cannam.
+    
+    This program is free software; you can redistribute it and/or
+    modify it under the terms of the GNU General Public License as
+    published by the Free Software Foundation; either version 2 of the
+    License, or (at your option) any later version.  See the file
+    COPYING included with this distribution for more information.
+*/
+
+#ifndef _RUBBERBANDSTRETCHER_H_
+#define _RUBBERBANDSTRETCHER_H_
+
+#include "TimeStretcher.h"
+
+#include <vector>
+
+namespace RubberBand
+{
+
+class RubberBandStretcher : public TimeStretcher
+{
+public:
+
+    typedef int Options;
+    
+    static const int OptionProcessOffline   = 0x00000000;
+    static const int OptionProcessRealTime  = 0x00000001;
+    
+    static const int OptionStretchElastic   = 0x00000000;
+    static const int OptionStretchPrecise   = 0x00000010;
+    
+    static const int OptionTransientsCrisp  = 0x00000000;
+    static const int OptionTransientsSmooth = 0x00000100;
+
+    static const int OptionPhasePeakLocked  = 0x00000000;
+    static const int OptionPhaseIndependent = 0x00001000;
+    
+    static const int OptionThreadingAuto    = 0x00000000;
+    static const int OptionThreadingNone    = 0x00010000;
+
+    static const int OptionWindowStandard   = 0x00000000;
+    static const int OptionWindowShort      = 0x00100000;
+    static const int OptionWindowLong       = 0x00200000;
+
+    static const int DefaultOptions         = 0x00000000;
+    static const int PercussiveOptions      = OptionWindowShort | \
+                                              OptionPhaseIndependent;
+
+    RubberBandStretcher(size_t sampleRate,
+                        size_t channels,
+                        Options options = DefaultOptions,
+                        double initialTimeRatio = 1.0,
+                        double initialPitchScale = 1.0);
+    virtual ~RubberBandStretcher();
+    
+    virtual void reset();
+    virtual void setTimeRatio(double ratio);
+    virtual void setPitchScale(double scale); //!!!??? pitch ratio?
+
+    virtual double getTimeRatio() const;
+    virtual double getPitchScale() const;
+
+    virtual size_t getLatency() const;
+
+    virtual void setTransientsOption(Options options);
+    virtual void setPhaseOption(Options options);
+
+    virtual void setExpectedInputDuration(size_t samples);
+    virtual void setMaxProcessBlockSize(size_t samples);
+    virtual size_t getSamplesRequired() const;
+
+    // if samples == 0, input may be null
+    virtual void study(const float *const *input, size_t samples, bool final);
+    virtual void process(const float *const *input, size_t samples, bool final);
+
+    virtual int available() const; // returns -1 if all data processed and nothing further will be available
+    virtual size_t retrieve(float *const *output, size_t samples) const;
+
+    virtual float getFrequencyCutoff(int n) const;
+    virtual void setFrequencyCutoff(int n, float f);
+    
+    //!!! ideally, this stuff wouldn't be here...
+
+    virtual size_t getInputIncrement() const;
+    virtual std::vector<int> getOutputIncrements() const; //!!! document particular meaning in RT mode
+    virtual std::vector<float> getLockCurve() const; //!!! document particular meaning in RT mode
+
+    virtual size_t getChannelCount() const;
+    
+    virtual void calculateStretch();
+
+    virtual void setDebugLevel(int level);
+
+protected:
+    class Impl;
+    Impl *m_d;
+};
+
+}
+
+#endif

rubberband/TimeStretcher.h

@@ -0,0 +1,51 @@
+/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */
+
+/*
+    Rubber Band
+    An audio time-stretching and pitch-shifting library.
+    Copyright 2007 Chris Cannam.
+    
+    This program is free software; you can redistribute it and/or
+    modify it under the terms of the GNU General Public License as
+    published by the Free Software Foundation; either version 2 of the
+    License, or (at your option) any later version.  See the file
+    COPYING included with this distribution for more information.
+*/
+
+#ifndef _RUBBERBAND_TIMESTRETCHER_H_
+#define _RUBBERBAND_TIMESTRETCHER_H_
+
+#include <sys/types.h>
+
+namespace RubberBand
+{
+
+class TimeStretcher
+{
+public:
+    TimeStretcher(size_t sampleRate, size_t channels) :
+        m_sampleRate(sampleRate),
+        m_channels(channels)
+    { }
+    virtual ~TimeStretcher()
+    { }
+
+    virtual void reset() = 0;
+    virtual void setTimeRatio(double ratio) = 0;
+    virtual size_t getLatency() const = 0;
+
+    virtual void study(const float *const *input, size_t samples, bool final) = 0;
+    virtual size_t getSamplesRequired() const = 0; // to cause processing to happen
+    virtual void process(const float *const *input, size_t samples, bool final) = 0;
+    virtual int available() const = 0;
+    virtual size_t retrieve(float *const *output, size_t samples) const = 0;
+
+protected:
+    size_t m_sampleRate;
+    size_t m_channels;
+};
+
+}
+
+#endif
+