add (copy of 2.0-ongoing) rubberband to 3.0

git-svn-id: svn://localhost/ardour2/branches/3.0@3713 d708f5d6-7413-0410-9779-e7cbd77b26cf

libs/rubberband/src/ConstantAudioCurve.cpp

@@ -0,0 +1,47 @@
+/* -*- 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.
+*/
+
+#include "ConstantAudioCurve.h"
+
+namespace RubberBand
+{
+
+ConstantAudioCurve::ConstantAudioCurve(size_t sampleRate, size_t windowSize) :
+    AudioCurve(sampleRate, windowSize)
+{
+}
+
+ConstantAudioCurve::~ConstantAudioCurve()
+{
+}
+
+void
+ConstantAudioCurve::reset()
+{
+}
+
+void
+ConstantAudioCurve::setWindowSize(size_t newSize)
+{
+    m_windowSize = newSize;
+}
+
+float
+ConstantAudioCurve::process(const float *R__, size_t)
+{
+    return 1.f;
+}
+
+}
+