source: plugins/puredata/aubiopitch~.c @ f071c93

feature/autosinkfeature/cnnfeature/cnn_orgfeature/constantqfeature/crepefeature/crepe_orgfeature/pitchshiftfeature/pydocstringsfeature/timestretchfix/ffmpeg5pitchshiftsamplertimestretchyinfft+
Last change on this file since f071c93 was ca1abdd, checked in by Paul Brossier <piem@piem.org>, 15 years ago

rename aubio_pitchdetection to aubio_pitch

  • Property mode set to 100644
File size: 2.9 KB
Line 
1/**
2 *
3 * a puredata wrapper for aubio pitch detection functions
4 *
5 * Thanks to Johannes M Zmolnig for writing the excellent HOWTO:
6 *       http://iem.kug.ac.at/pd/externals-HOWTO/ 
7 *
8 * */
9
10#include <m_pd.h>
11#include <aubio.h>
12#include <string.h>
13
14char aubiopitch_version[] = "aubiopitch~ version 0.1";
15
16static t_class *aubiopitch_tilde_class;
17
18void aubiopitch_tilde_setup (void);
19
20typedef struct _aubiopitch_tilde
21{
22        t_object x_obj;
23        t_float threshold;     
24        t_float threshold2;     
25        t_int pos; /*frames%dspblocksize*/
26        t_int bufsize;
27        t_int hopsize;
28        aubio_pitch_t *o;
29        fvec_t *vec;
30        fvec_t *pitchvec;
31        t_outlet *pitch;
32} t_aubiopitch_tilde;
33
34static t_int *aubiopitch_tilde_perform(t_int *w) 
35{
36        t_aubiopitch_tilde *x = (t_aubiopitch_tilde *)(w[1]);
37        t_sample *in          = (t_sample *)(w[2]);
38        int n                 = (int)(w[3]);
39        int j;
40        for (j=0;j<n;j++) {
41                /* write input to datanew */
42                fvec_write_sample(x->vec, in[j], 0, x->pos);
43                /*time for fft*/
44                if (x->pos == x->hopsize-1) {         
45                        /* block loop */
46                        aubio_pitch_do(x->o,x->vec, x->pitchvec);
47                        outlet_float(x->pitch, x->pitchvec->data[0][0]);
48                        /* end of block loop */
49                        x->pos = -1; /* so it will be zero next j loop */
50                }
51                x->pos++;
52        }
53        return (w+4);
54}
55
56static void aubiopitch_tilde_dsp(t_aubiopitch_tilde *x, t_signal **sp)
57{
58        dsp_add(aubiopitch_tilde_perform, 3, x, sp[0]->s_vec, sp[0]->s_n);
59}
60
61static void aubiopitch_tilde_debug(t_aubiopitch_tilde *x)
62{
63        post("aubiopitch~ bufsize:\t%d", x->bufsize);
64        post("aubiopitch~ hopsize:\t%d", x->hopsize);
65        post("aubiopitch~ threshold:\t%f", x->threshold);
66        post("aubiopitch~ audio in:\t%f", x->vec->data[0][0]);
67}
68
69//static void *aubiopitch_tilde_new (t_floatarg f)
70static void *aubiopitch_tilde_new (t_symbol * s)
71{
72        t_aubiopitch_tilde *x = 
73                (t_aubiopitch_tilde *)pd_new(aubiopitch_tilde_class);
74
75        x->bufsize   = 2048;
76        x->hopsize   = x->bufsize / 2;
77
78        //FIXME: get the real samplerate
79    x->o = new_aubio_pitch(s->s_name, x->bufsize, 
80            x->hopsize, 1, 44100.);
81        aubio_pitch_set_tolerance (x->o, 0.7);
82        x->vec = (fvec_t *)new_fvec(x->hopsize,1);
83        x->pitchvec = (fvec_t *)new_fvec(1,1);
84
85        //floatinlet_new (&x->x_obj, &x->threshold);
86        x->pitch = outlet_new (&x->x_obj, &s_float);
87
88        post(aubiopitch_version);
89        return (void *)x;
90}
91
92static void *aubiopitch_tilde_del(t_aubiopitch_tilde *x)
93{
94        del_aubio_pitch(x->o);
95        del_fvec(x->vec);
96        del_fvec(x->pitchvec);
97        return 0;
98}
99
100void aubiopitch_tilde_setup (void)
101{
102        aubiopitch_tilde_class = class_new (gensym ("aubiopitch~"),
103                        (t_newmethod)aubiopitch_tilde_new,
104                        (t_method)aubiopitch_tilde_del,
105                        sizeof (t_aubiopitch_tilde),
106                        CLASS_DEFAULT, A_DEFSYMBOL, 0);
107        class_addmethod(aubiopitch_tilde_class, 
108                        (t_method)aubiopitch_tilde_dsp, 
109                        gensym("dsp"), 0);
110        class_addmethod(aubiopitch_tilde_class, 
111                        (t_method)aubiopitch_tilde_debug,
112                        gensym("debug"), 0);
113        CLASS_MAINSIGNALIN(aubiopitch_tilde_class, 
114                        t_aubiopitch_tilde, threshold);
115}
116
Note: See TracBrowser for help on using the repository browser.