/**
*
- * a puredata wrapper for aubio zero crossing rate function
+ * a puredata wrapper for aubio zero crossing rate function
*
* Thanks to Johannes M Zmolnig for writing the excellent HOWTO:
- * http://iem.kug.ac.at/pd/externals-HOWTO/
+ * http://iem.kug.ac.at/pd/externals-HOWTO/
*
* */
void aubiozcr_tilde_setup (void);
-typedef struct _aubiozcr_tilde
+typedef struct _aubiozcr_tilde
{
- t_object x_obj;
- t_int pos; /*frames%dspblocksize*/
- t_int bufsize;
- t_float f;
- fvec_t *vec;
- t_outlet *zcr;
+ t_object x_obj;
+ t_int pos; /*frames%dspblocksize*/
+ t_int bufsize;
+ t_float f;
+ fvec_t *vec;
+ t_outlet *zcr;
} t_aubiozcr_tilde;
-static t_int *aubiozcr_tilde_perform(t_int *w)
+static t_int *aubiozcr_tilde_perform(t_int *w)
{
- t_aubiozcr_tilde *x = (t_aubiozcr_tilde *)(w[1]);
- t_sample *in = (t_sample *)(w[2]);
- int n = (int)(w[3]);
- int j;
- for (j=0;j<n;j++) {
- /* write input to datanew */
- fvec_set_sample(x->vec, in[j], x->pos);
- /*time for fft*/
- if (x->pos == x->bufsize-1) {
- /* block loop */
- outlet_float(x->zcr, aubio_zero_crossing_rate(x->vec));
- /* end of block loop */
- x->pos = -1; /* so it will be zero next j loop */
- }
- x->pos++;
- }
- return (w+4);
+ t_aubiozcr_tilde *x = (t_aubiozcr_tilde *)(w[1]);
+ t_sample *in = (t_sample *)(w[2]);
+ int n = (int)(w[3]);
+ int j;
+ for (j=0;j<n;j++) {
+ /* write input to datanew */
+ fvec_set_sample(x->vec, in[j], x->pos);
+ /*time for fft*/
+ if (x->pos == x->bufsize-1) {
+ /* block loop */
+ outlet_float(x->zcr, aubio_zero_crossing_rate(x->vec));
+ /* end of block loop */
+ x->pos = -1; /* so it will be zero next j loop */
+ }
+ x->pos++;
+ }
+ return (w+4);
}
static void aubiozcr_tilde_dsp(t_aubiozcr_tilde *x, t_signal **sp)
{
- dsp_add(aubiozcr_tilde_perform, 3, x, sp[0]->s_vec, sp[0]->s_n);
+ dsp_add(aubiozcr_tilde_perform, 3, x, sp[0]->s_vec, sp[0]->s_n);
}
static void aubiozcr_tilde_debug(t_aubiozcr_tilde *x)
{
- post("aubiozcr~ bufsize:\t%d", x->bufsize);
- post("aubiozcr~ audio in:\t%f", x->vec->data[0]);
+ post("aubiozcr~ bufsize:\t%d", x->bufsize);
+ post("aubiozcr~ audio in:\t%f", x->vec->data[0]);
}
static void *aubiozcr_tilde_new (void)
{
- t_aubiozcr_tilde *x =
- (t_aubiozcr_tilde *)pd_new(aubiozcr_tilde_class);
+ t_aubiozcr_tilde *x =
+ (t_aubiozcr_tilde *)pd_new(aubiozcr_tilde_class);
- x->bufsize = 1024;
+ x->bufsize = 1024;
- x->vec = (fvec_t *)new_fvec(x->bufsize);
+ x->vec = (fvec_t *)new_fvec(x->bufsize);
- x->zcr = outlet_new (&x->x_obj, &s_float);
- post(aubiozcr_version);
- return (void *)x;
+ x->zcr = outlet_new (&x->x_obj, &s_float);
+ post(aubiozcr_version);
+ return (void *)x;
}
void aubiozcr_tilde_setup (void)
{
- aubiozcr_tilde_class = class_new (gensym ("aubiozcr~"),
- (t_newmethod)aubiozcr_tilde_new,
- 0, sizeof (t_aubiozcr_tilde),
- CLASS_DEFAULT, 0);
- class_addmethod(aubiozcr_tilde_class,
- (t_method)aubiozcr_tilde_dsp,
- gensym("dsp"), 0);
- class_addmethod(aubiozcr_tilde_class,
- (t_method)aubiozcr_tilde_debug,
- gensym("debug"), 0);
- CLASS_MAINSIGNALIN(aubiozcr_tilde_class,
- t_aubiozcr_tilde, f);
+ aubiozcr_tilde_class = class_new (gensym ("aubiozcr~"),
+ (t_newmethod)aubiozcr_tilde_new,
+ 0, sizeof (t_aubiozcr_tilde),
+ CLASS_DEFAULT, 0);
+ class_addmethod(aubiozcr_tilde_class,
+ (t_method)aubiozcr_tilde_dsp,
+ gensym("dsp"), 0);
+ class_addmethod(aubiozcr_tilde_class,
+ (t_method)aubiozcr_tilde_debug,
+ gensym("debug"), 0);
+ CLASS_MAINSIGNALIN(aubiozcr_tilde_class,
+ t_aubiozcr_tilde, f);
}
-