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/* flib - PD library for feature extraction
Copyright (C) 2005 Jamie Bullock
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 Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
/* cleans 'nan' 'inf' '-inf' from an audio vector or control value
* If no argument is given 'dirty' values will be replaced by 0, otherwise values are replaced by the argument value. If an audio vector is given as input, a bang is sent to the right output if 'dirty' values are found */
#include "flib.h"
#define CLEAN (x->outval == x->inf ? 0 : x->outval)
static t_class *clean_class;
typedef struct _clean {
t_object x_obj;
t_float f;
t_outlet *out_r;
t_float outval, inf;
} t_clean;
static t_int *clean_perform(t_int *w)
{
t_sample *in = (t_sample *)(w[1]);
t_sample *out = (t_sample *)(w[2]);
t_int N = (t_int)(w[3]);
t_clean *x = (t_clean *)(w[4]);
t_int dirty = 0;
while(N--){
if(!finite(*in)){
dirty = 1;
*out++ = CLEAN;
}
else
*out++ = *in++;
}
if(dirty)
outlet_bang(x->out_r);
return (w+5);
}
static void clean_dsp(t_clean *x, t_signal **sp)
{
dsp_add(clean_perform, 4,
sp[0]->s_vec, sp[1]->s_vec, sp[0]->s_n, x);
}
static void clean_float(t_clean *x, t_float f)
{
x->f = f;
if(!finite(x->f))
outlet_float(x->out_r, CLEAN);
else
outlet_float(x->out_r, x->f);
}
static void *clean_new(t_symbol *s, t_int argc, t_atom *argv)
{
t_clean *x = (t_clean *)pd_new(clean_class);
outlet_new(&x->x_obj, &s_signal);
x->out_r = outlet_new(&x->x_obj, &s_float);
x->inf = (t_float)HUGE_VAL;
if(argc)
x->outval = atom_getfloatarg(0, argc, argv);
else
x->outval = x->inf;
post("%.2f", x->outval);
return (void *)x;
}
void clean_tilde_setup(void) {
clean_class = class_new(gensym("clean~"),
(t_newmethod)clean_new,
0, sizeof(t_clean),
CLASS_DEFAULT, A_GIMME, 0);
CLASS_MAINSIGNALIN(clean_class, t_clean,f);
class_addfloat(clean_class, clean_float);
class_addmethod(clean_class,
(t_method)clean_dsp, gensym("dsp"), 0);
class_sethelpsymbol(clean_class, gensym("help-flib"));
}
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