* Some code rearrangement

* Threading fixes (corrections to condition usage)
* Avoid a potential hang when faced with some peculiar stretch factors
* More modular calls out to vectorizable functions
* Solaris build fixes
* Bump version number

src/dsp/SpectralDifferenceAudioCurve.h

@@ -0,0 +1,44 @@
+/* -*- 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 2007-2009 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 _SPECTRALDIFFERENCE_AUDIO_CURVE_H_
+#define _SPECTRALDIFFERENCE_AUDIO_CURVE_H_
+
+#include "AudioCurveCalculator.h"
+#include "Window.h"
+
+namespace RubberBand
+{
+
+class SpectralDifferenceAudioCurve : public AudioCurveCalculator
+{
+public:
+    SpectralDifferenceAudioCurve(size_t sampleRate, size_t windowSize);
+
+    virtual ~SpectralDifferenceAudioCurve();
+
+    virtual void setWindowSize(size_t newSize);
+
+    virtual float processFloat(const float *R__ mag, size_t increment);
+    virtual double processDouble(const double *R__ mag, size_t increment);
+    virtual void reset();
+
+protected:
+    double *R__ m_mag;
+    double *R__ m_tmpbuf;
+};
+
+}
+
+#endif