Update from personal repository.

* Added an initial "formant preservation" option when pitch shifting
 * Real-time pitch shifting now uses a faster method by default, with
   less variation in CPU usage
 * The code is more amenable to compiler auto-vectorization (through
   e.g. gcc --ftree-vectorize).

src/Profiler.h

@@ -0,0 +1,91 @@
+/* -*- 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 2007-2008 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 _PROFILER_H_
+#define _PROFILER_H_
+
+#define NO_TIMING 1
+
+//#define WANT_TIMING 1
+//#define PROFILE_CLOCKS 1
+
+#ifdef NDEBUG
+#ifndef WANT_TIMING
+#define NO_TIMING 1
+#endif
+#endif
+
+#ifndef NO_TIMING
+#ifdef PROFILE_CLOCKS
+#include <time.h>
+#else
+#include "sysutils.h"
+#ifndef _WIN32
+#include <sys/time.h>
+#endif
+#endif
+#endif
+
+#include <map>
+
+namespace RubberBand {
+
+#ifndef NO_TIMING
+
+class Profiler
+{
+public:
+    Profiler(const char *name);
+    ~Profiler();
+
+    void end(); // same action as dtor
+
+    static void dump();
+
+protected:
+    const char* m_c;
+#ifdef PROFILE_CLOCKS
+    clock_t m_start;
+#else
+    struct timeval m_start;
+#endif
+    bool m_showOnDestruct;
+    bool m_ended;
+
+    typedef std::pair<int, float> TimePair;
+    typedef std::map<const char *, TimePair> ProfileMap;
+    typedef std::map<const char *, float> WorstCallMap;
+    static ProfileMap m_profiles;
+    static WorstCallMap m_worstCalls;
+    static void add(const char *, float);
+};
+
+#else
+
+class Profiler
+{
+public:
+    Profiler(const char *, bool = false) { }
+    ~Profiler() { }
+
+    void update() const { }
+    void end() { }
+    static void dump() { }
+};
+
+#endif
+
+}
+
+#endif