libsidplayfp 2.4.0
SincResampler.h
1/*
2 * This file is part of libsidplayfp, a SID player engine.
3 *
4 * Copyright 2011-2013 Leandro Nini <drfiemost@users.sourceforge.net>
5 * Copyright 2007-2010 Antti Lankila
6 * Copyright 2004 Dag Lem <resid@nimrod.no>
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
21 */
22
23#ifndef SINCRESAMPLER_H
24#define SINCRESAMPLER_H
25
26#include "Resampler.h"
27
28#include <string>
29#include <map>
30
31#include "../array.h"
32
33#include "sidcxx11.h"
34
35namespace reSIDfp
36{
37
53class SincResampler final : public Resampler
54{
55private:
57 static const int RINGSIZE = 2048;
58
59private:
61 matrix_t* firTable;
62
63 int sampleIndex;
64
66 int firRES;
67
69 int firN;
70
71 const int cyclesPerSample;
72
73 int sampleOffset;
74
75 int outputValue;
76
77 short sample[RINGSIZE * 2];
78
79private:
80 int fir(int subcycle);
81
82public:
103 SincResampler(double clockFrequency, double samplingFrequency, double highestAccurateFrequency);
104
105 bool input(int input) override;
106
107 int output() const override { return outputValue; }
108
109 void reset() override;
110};
111
112} // namespace reSIDfp
113
114#endif
Definition: array.h:43
Definition: Resampler.h:39
Definition: SincResampler.h:54
bool input(int input) override
Definition: SincResampler.cpp:365
SincResampler(double clockFrequency, double samplingFrequency, double highestAccurateFrequency)
Definition: SincResampler.cpp:268