annotate maths/MathAliases.h @ 321:f1e6be2de9a5

A threshold (delta) is added in the peak picking parameters structure (PPickParams). It is used as an offset when computing the smoothed detection function. A constructor for the structure PPickParams is also added to set the parameters to 0 when a structure instance is created. Hence programmes using the peak picking parameter structure and which do not set the delta parameter (e.g. QM Vamp note onset detector) won't be affected by the modifications.

Functions modified:
- dsp/onsets/PeakPicking.cpp
- dsp/onsets/PeakPicking.h
- dsp/signalconditioning/DFProcess.cpp
- dsp/signalconditioning/DFProcess.h

/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */

/*
    QM DSP Library

    Centre for Digital Music, Queen Mary, University of London.
    This file 2005-2006 Christian Landone.

    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.  See the file
    COPYING included with this distribution for more information.
*/

#ifndef MATHALIASES_H
#define MATHALIASES_H

#include <cmath>
#include <complex>

using namespace std;
typedef complex<double> ComplexData;


#ifndef PI
#define PI (3.14159265358979232846)
#endif

#define TWO_PI 		(2. * PI)

#define EPS 2.2204e-016

/* aliases to math.h functions */
#define EXP				exp
#define COS				cos
#define SIN				sin
#define ABS				fabs
#define POW				powf
#define SQRT			sqrtf
#define LOG10			log10f
#define LOG				logf
#define FLOOR			floorf
#define TRUNC			truncf

/* aliases to complex.h functions */
/** sample = EXPC(complex) */
#define EXPC			cexpf
/** complex = CEXPC(complex) */
#define CEXPC			cexp
/** sample = ARGC(complex) */
#define ARGC			cargf
/** sample = ABSC(complex) norm */
#define ABSC			cabsf
/** sample = REAL(complex) */
#define REAL			crealf
/** sample = IMAG(complex) */
#define IMAG			cimagf

#endif