blob: d663805b50f18a3061980c93513b4b935dfcc44e (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
|
/*
* ***** BEGIN GPL LICENSE BLOCK *****
*
* Copyright 2009-2011 Jörg Hermann Müller
*
* This file is part of AudaSpace.
*
* Audaspace 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.
*
* AudaSpace is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with Audaspace; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* ***** END GPL LICENSE BLOCK *****
*/
/** \file audaspace/FX/AUD_IIRFilterReader.h
* \ingroup audfx
*/
#ifndef __AUD_IIRFILTERREADER_H__
#define __AUD_IIRFILTERREADER_H__
#include "AUD_BaseIIRFilterReader.h"
#include <vector>
/**
* This class is for infinite impulse response filters with simple coefficients.
*/
class AUD_IIRFilterReader : public AUD_BaseIIRFilterReader
{
private:
/**
* Output filter coefficients.
*/
std::vector<float> m_a;
/**
* Input filter coefficients.
*/
std::vector<float> m_b;
// hide copy constructor and operator=
AUD_IIRFilterReader(const AUD_IIRFilterReader&);
AUD_IIRFilterReader& operator=(const AUD_IIRFilterReader&);
public:
/**
* Creates a new IIR filter reader.
* \param reader The reader to read from.
* \param b The input filter coefficients.
* \param a The output filter coefficients.
*/
AUD_IIRFilterReader(boost::shared_ptr<AUD_IReader> reader, const std::vector<float>& b,
const std::vector<float>& a);
virtual sample_t filter();
void setCoefficients(const std::vector<float>& b,
const std::vector<float>& a);
};
#endif //__AUD_IIRFILTERREADER_H__
|
