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Add boom and rainbow analyzers

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This commit is contained in:
Jonas Kvinge
2019-02-04 21:34:12 +01:00
parent ad7084b897
commit 0679b78c1d
17 changed files with 973 additions and 296 deletions
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65
src/analyzer/fht.h
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@@ -1,26 +1,30 @@
// FHT - Fast Hartley Transform Class
//
// Copyright (C) 2004 Melchior FRANZ - mfranz@kde.org
//
// 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.
//
// This program 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 this program; if not, write to the Free Software
// Foundation, 51 Franklin Steet, Fifth Floor, Boston, MA 02110-1301, USA
//
// $Id$
/*
Strawberry Music Player
This file was part of Clementine.
Copyright 2004, Melchior FRANZ <mfranz@kde.org>
Copyright 2010, 2014, John Maguire <john.maguire@gmail.com>
Copyright 2014, Krzysztof Sobiecki <sobkas@gmail.com>
Copyright 2017, Santiago Gil
Strawberry 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 3 of the License, or
(at your option) any later version.
Strawberry 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 Strawberry. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef FHT_H
#define FHT_H
#include <QVector>
/**
* Implementation of the Hartley Transform after Bracewell's discrete
* algorithm. The algorithm is subject to US patent No. 4,646,256 (1987)
@@ -30,11 +34,16 @@
* [1] Computer in Physics, Vol. 9, No. 4, Jul/Aug 1995 pp 373-379
*/
class FHT {
int m_exp2;
int m_num;
float* m_buf;
float* m_tab;
int* m_log;
const int num_;
const int exp2_;
QVector<float> buf_vector_;
QVector<float> tab_vector_;
QVector<int> log_vector_;
float* buf_();
float* tab_();
int* log_();
/**
* Create a table of "cas" (cosine and sine) values.
@@ -57,10 +66,8 @@ class FHT {
FHT(int);
~FHT();
inline int sizeExp() const { return m_exp2; }
inline int size() const { return m_num; }
float* copy(float*, float*);
float* clear(float*);
int sizeExp() const;
int size() const;
void scale(float*, float);
/**
@@ -115,4 +122,4 @@ class FHT {
void transform(float*);
};
#endif
#endif // FHT_H