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 post(aubiopitch_version);
75 post("aubiopitch~ method:\t%s", x->method);
76 post("aubiopitch~ bufsize:\t%d", x->bufsize);
77 post("aubiopitch~ hopsize:\t%d", x->hopsize);
78 post("aubiopitch~ tolerance:\t%f", aubio_pitch_get_tolerance(x->o));
81 static void *aubiopitch_tilde_new (t_symbol * s, int argc, t_atom *argv)
84 t_aubiopitch_tilde *x = (t_aubiopitch_tilde *)pd_new(aubiopitch_tilde_class);
86 x->method = "default";
88 x->hopsize = x->bufsize / 2;
91 if (argv[1].a_type == A_FLOAT) {
92 x->bufsize = (uint_t)(argv[1].a_w.w_float);
97 x->hopsize = x->bufsize / 2;
100 if (argv[2].a_type == A_FLOAT) {
101 x->hopsize = (uint_t)(argv[2].a_w.w_float);
107 x->method = argv[0].a_w.w_symbol->s_name;
110 x->o = new_aubio_pitch(x->method, x->bufsize, x->hopsize,
111 (uint_t)sys_getsr());
113 if (x->o == NULL) return NULL;
115 x->vec = (fvec_t *)new_fvec(x->hopsize);
116 x->pitchvec = (fvec_t *)new_fvec(1);
118 x->pitch = outlet_new (&x->x_obj, &s_float);
123 void aubiopitch_tilde_del(t_aubiopitch_tilde *x)
125 outlet_free(x->pitch);
126 del_aubio_pitchshift(x->o);
128 del_fvec(x->pitchvec);
131 void aubiopitch_tilde_setup (void)
133 aubiopitch_tilde_class = class_new (gensym ("aubiopitch~"),
134 (t_newmethod)aubiopitch_tilde_new,
135 (t_method)aubiopitch_tilde_del,
136 sizeof (t_aubiopitch_tilde),
137 CLASS_DEFAULT, A_GIMME, 0);
138 class_addmethod(aubiopitch_tilde_class,
139 (t_method)aubiopitch_tilde_dsp,
141 class_addmethod(aubiopitch_tilde_class,
142 (t_method)aubiopitch_tilde_tolerance,
143 gensym("tolerance"), A_DEFFLOAT, 0);
144 class_addmethod(aubiopitch_tilde_class,
145 (t_method)aubiopitch_tilde_tolerance,
146 gensym("tol"), A_DEFFLOAT, 0);
147 class_addmethod(aubiopitch_tilde_class,
148 (t_method)aubiopitch_tilde_debug,
150 CLASS_MAINSIGNALIN(aubiopitch_tilde_class,
151 t_aubiopitch_tilde, tolerance);