diff options
Diffstat (limited to 'hasc~.c')
| -rw-r--r-- | hasc~.c | 100 |
1 files changed, 100 insertions, 0 deletions
@@ -0,0 +1,100 @@ +/* + * hasc~ : Highest Apparent Spectral Component, according to amplitude threshold + * Copyright (C) 2005 Edward Kelly <morph_2016@yahoo.co.uk> + * + * 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, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include "m_pd.h" +#include <math.h> + +#ifdef NT +#pragma warning( disable : 4244 ) +#pragma warning( disable : 4305 ) +#endif + +static t_class *hasc_tilde_class; + +typedef struct _hasc_tilde +{ + t_object x_obj; + t_float f; + t_float f_topbin, f_thresh; + t_outlet *f_hasc, *f_levs; +} t_hasc_tilde; + +t_int *hasc_tilde_perform(t_int *w) +{ + t_hasc_tilde *x = (t_hasc_tilde *)(w[1]); + t_sample *real = (t_sample *)(w[2]); + t_sample *imag = (t_sample *)(w[3]); + int n = (int)(w[4]); + int incr = 0; + double max = 0; + double vectorr, vectori; + double alpha; + x->f_topbin = 0; + x->f_thresh = x->f_thresh > 0 ? x->f_thresh : 1; + + while (n--) + { + vectorr = (*real++); + vectori = (*imag++); + alpha = sqrt((vectorr * vectorr) + (vectori * vectori)); + max = alpha > max ? alpha : max; + x->f_topbin = alpha > x->f_thresh ? incr : x->f_topbin; + incr++; + } + outlet_float(x->f_levs, (float)max); + outlet_float(x->f_hasc, x->f_topbin); + + return(w+5); +} + +void hasc_tilde_dsp(t_hasc_tilde *x, t_signal **sp) +{ + dsp_add(hasc_tilde_perform, 4, x, + sp[0]->s_vec, sp[1]->s_vec, sp[0]->s_n); +} + +void *hasc_tilde_new(t_floatarg f) +{ + t_hasc_tilde *x = (t_hasc_tilde *)pd_new(hasc_tilde_class); + + x->f_thresh = f; + + inlet_new (&x->x_obj, &x->x_obj.ob_pd, &s_signal, &s_signal); + floatinlet_new (&x->x_obj, &x->f_thresh); + x->f_hasc = outlet_new(&x->x_obj, gensym("float")); + x->f_levs = outlet_new(&x->x_obj, gensym("float")); + return (void *)x; +} + + +void hasc_tilde_setup(void) +{ + hasc_tilde_class = class_new(gensym("hasc~"), + (t_newmethod)hasc_tilde_new, + 0, sizeof(t_hasc_tilde), + CLASS_DEFAULT, A_DEFFLOAT, 0); + + post("|===============hasc~=================|"); + post("|=highest apparent spectral component=|"); + post("|=====edward======kelly======2005=====|"); + + class_addmethod(hasc_tilde_class, (t_method)hasc_tilde_dsp, + gensym("dsp"), 0); + + CLASS_MAINSIGNALIN(hasc_tilde_class, t_hasc_tilde, f); +} |