70 lines
1.4 KiB
C++
70 lines
1.4 KiB
C++
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/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */
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/*
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Rubber Band
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An audio time-stretching and pitch-shifting library.
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Copyright 2007-2008 Chris Cannam.
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version. See the file
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COPYING included with this distribution for more information.
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*/
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#include "SilentAudioCurve.h"
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#include <cmath>
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namespace RubberBand
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{
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SilentAudioCurve::SilentAudioCurve(size_t sampleRate, size_t windowSize) :
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AudioCurve(sampleRate, windowSize)
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{
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}
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SilentAudioCurve::~SilentAudioCurve()
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{
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}
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void
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SilentAudioCurve::reset()
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{
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}
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void
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SilentAudioCurve::setWindowSize(size_t newSize)
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{
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m_windowSize = newSize;
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}
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float
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SilentAudioCurve::process(const float *R__ mag, size_t)
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{
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const int hs = m_windowSize / 2;
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static float threshold = powf(10.f, -6);
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for (int i = 0; i <= hs; ++i) {
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if (mag[i] > threshold) return 0.f;
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}
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return 1.f;
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}
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float
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SilentAudioCurve::process(const double *R__ mag, size_t)
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{
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const int hs = m_windowSize / 2;
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static double threshold = pow(10.0, -6);
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for (int i = 0; i <= hs; ++i) {
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if (mag[i] > threshold) return 0.f;
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}
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return 1.f;
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}
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}
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