mirror of
https://github.com/clementine-player/Clementine
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77 lines
1.8 KiB
C++
77 lines
1.8 KiB
C++
/*
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* Chromaprint -- Audio fingerprinting toolkit
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* Copyright (C) 2010 Lukas Lalinsky <lalinsky@gmail.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301
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* USA
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*/
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#ifndef CHROMAPRINT_QUANTIZER_H_
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#define CHROMAPRINT_QUANTIZER_H_
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#include <assert.h>
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#include <ostream>
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namespace Chromaprint
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{
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class Quantizer
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{
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public:
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Quantizer(double t0 = 0.0, double t1 = 0.0, double t2 = 0.0)
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: m_t0(t0), m_t1(t1), m_t2(t2)
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{
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assert(t0 <= t1 && t1 <= t2);
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}
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int Quantize(double value) const
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{
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if (value < m_t1) {
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if (value < m_t0) {
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return 0;
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}
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return 1;
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}
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else {
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if (value < m_t2) {
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return 2;
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}
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return 3;
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}
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}
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double t0() const { return m_t0; }
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void set_t0(double t) { m_t0 = t; }
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double t1() const { return m_t1; }
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void set_t1(double t) { m_t1 = t; }
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double t2() const { return m_t2; }
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void set_t2(double t) { m_t2 = t; }
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private:
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double m_t0, m_t1, m_t2;
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};
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inline std::ostream &operator<<(std::ostream &stream, const Quantizer &q)
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{
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stream << "Quantizer(" << q.t0() << ", " << q.t1() << ", " << q.t2() << ")";
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return stream;
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}
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};
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#endif
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