3 * a puredata wrapper for aubio pitch detection functions
5 * Thanks to Johannes M Zmolnig for writing the excellent HOWTO:
6 * http://iem.kug.ac.at/pd/externals-HOWTO/
11 #include <aubio/aubio.h>
14 char aubiopitch_version[] = "aubiopitch~ version " PACKAGE_VERSION;
16 static t_class *aubiopitch_tilde_class;
18 void aubiopitch_tilde_setup (void);
20 typedef struct _aubiopitch_tilde
24 t_int pos; /*frames%dspblocksize*/
34 static t_int *aubiopitch_tilde_perform(t_int *w)
36 t_aubiopitch_tilde *x = (t_aubiopitch_tilde *)(w[1]);
37 t_sample *in = (t_sample *)(w[2]);
41 /* write input to datanew */
42 fvec_set_sample(x->vec, in[j], x->pos);
44 if (x->pos == x->hopsize-1) {
46 aubio_pitch_do(x->o, x->vec, x->pitchvec);
47 outlet_float(x->pitch, x->pitchvec->data[0]);
48 /* end of block loop */
49 x->pos = -1; /* so it will be zero next j loop */
56 static void aubiopitch_tilde_dsp(t_aubiopitch_tilde *x, t_signal **sp)
58 dsp_add(aubiopitch_tilde_perform, 3, x, sp[0]->s_vec, sp[0]->s_n);
61 static void aubiopitch_tilde_tolerance(t_aubiopitch_tilde *x, t_floatarg a)
65 aubio_pitch_set_tolerance(x->o, x->tolerance);
67 post("aubiopitch~ tolerance set to %.2f",
68 aubio_pitch_get_tolerance(x->o));
72 static void aubiopitch_tilde_debug(t_aubiopitch_tilde *x)
74 smpl_t tolerance = aubio_pitch_get_tolerance(x->o);
75 post("%s method: %s tolerance: %.3f bufsize: %d hopsize: %d",
76 aubiopitch_version, x->method, tolerance, x->bufsize, x->hopsize);
79 static void *aubiopitch_tilde_new (t_symbol * s, int argc, t_atom *argv)
82 t_aubiopitch_tilde *x = (t_aubiopitch_tilde *)pd_new(aubiopitch_tilde_class);
84 x->method = "default";
86 x->hopsize = x->bufsize / 2;
89 if (argv[1].a_type == A_FLOAT) {
90 x->bufsize = (uint_t)(argv[1].a_w.w_float);
95 x->hopsize = x->bufsize / 2;
98 if (argv[2].a_type == A_FLOAT) {
99 x->hopsize = (uint_t)(argv[2].a_w.w_float);
105 if (argv[0].a_type == A_SYMBOL) {
106 x->method = argv[0].a_w.w_symbol->s_name;
108 post("aubiopitch~: first argument should be a symbol");
113 x->o = new_aubio_pitch(x->method, x->bufsize, x->hopsize,
114 (uint_t)sys_getsr());
116 if (x->o == NULL) return NULL;
118 x->vec = (fvec_t *)new_fvec(x->hopsize);
119 x->pitchvec = (fvec_t *)new_fvec(1);
121 x->pitch = outlet_new (&x->x_obj, &s_float);
126 void aubiopitch_tilde_del(t_aubiopitch_tilde *x)
128 outlet_free(x->pitch);
129 del_aubio_pitch(x->o);
131 del_fvec(x->pitchvec);
134 void aubiopitch_tilde_setup (void)
136 aubiopitch_tilde_class = class_new (gensym ("aubiopitch~"),
137 (t_newmethod)aubiopitch_tilde_new,
138 (t_method)aubiopitch_tilde_del,
139 sizeof (t_aubiopitch_tilde),
140 CLASS_DEFAULT, A_GIMME, 0);
141 class_addmethod(aubiopitch_tilde_class,
142 (t_method)aubiopitch_tilde_dsp,
144 class_addmethod(aubiopitch_tilde_class,
145 (t_method)aubiopitch_tilde_tolerance,
146 gensym("tolerance"), A_DEFFLOAT, 0);
147 class_addmethod(aubiopitch_tilde_class,
148 (t_method)aubiopitch_tilde_tolerance,
149 gensym("tol"), A_DEFFLOAT, 0);
150 class_addmethod(aubiopitch_tilde_class,
151 (t_method)aubiopitch_tilde_debug,
153 CLASS_MAINSIGNALIN(aubiopitch_tilde_class,
154 t_aubiopitch_tilde, tolerance);