source: plugins/puredata/aubiopitch~.c @ 845f2d4

feature/autosinkfeature/cnnfeature/cnn_orgfeature/constantqfeature/crepefeature/crepe_orgfeature/pitchshiftfeature/pydocstringsfeature/timestretchfix/ffmpeg5pitchshiftsamplertimestretchyinfft+
Last change on this file since 845f2d4 was 845f2d4, checked in by Paul Brossier <piem@altern.org>, 19 years ago

add free function
add free function

  • Property mode set to 100644
File size: 3.0 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
13char aubiopitch_version[] = "aubiopitch~ version 0.1";
14
15aubio_pitchdetection_type type_pitch = aubio_pitch_mcomb;
16aubio_pitchdetection_mode mode_pitch = aubio_pitchm_freq;
17
18static t_class *aubiopitch_tilde_class;
19
20void aubiopitch_tilde_setup (void);
21
22typedef struct _aubiopitch_tilde
23{
24        t_object x_obj;
25        t_float threshold;     
26        t_float threshold2;     
27        t_int pos; /*frames%dspblocksize*/
28        t_int bufsize;
29        t_int hopsize;
30        aubio_pitchdetection_t *o;
31        fvec_t *vec;
32        t_outlet *pitch;
33} t_aubiopitch_tilde;
34
35static t_int *aubiopitch_tilde_perform(t_int *w) 
36{
37        t_aubiopitch_tilde *x = (t_aubiopitch_tilde *)(w[1]);
38        t_sample *in          = (t_sample *)(w[2]);
39        int n                 = (int)(w[3]);
40        int j;
41        smpl_t pitch;
42        for (j=0;j<n;j++) {
43                /* write input to datanew */
44                fvec_write_sample(x->vec, in[j], 0, x->pos);
45                /*time for fft*/
46                if (x->pos == x->hopsize-1) {         
47                        /* block loop */
48                        pitch = aubio_pitchdetection(x->o,x->vec);
49                        outlet_float(x->pitch, pitch);
50                        /* end of block loop */
51                        x->pos = -1; /* so it will be zero next j loop */
52                }
53                x->pos++;
54        }
55        return (w+4);
56}
57
58static void aubiopitch_tilde_dsp(t_aubiopitch_tilde *x, t_signal **sp)
59{
60        dsp_add(aubiopitch_tilde_perform, 3, x, sp[0]->s_vec, sp[0]->s_n);
61}
62
63static void aubiopitch_tilde_debug(t_aubiopitch_tilde *x)
64{
65        post("aubiopitch~ bufsize:\t%d", x->bufsize);
66        post("aubiopitch~ hopsize:\t%d", x->hopsize);
67        post("aubiopitch~ threshold:\t%f", x->threshold);
68        post("aubiopitch~ audio in:\t%f", x->vec->data[0][0]);
69}
70
71//static void *aubiopitch_tilde_new (t_floatarg f)
72static void *aubiopitch_tilde_new (void)
73{
74        t_aubiopitch_tilde *x = 
75                (t_aubiopitch_tilde *)pd_new(aubiopitch_tilde_class);
76
77        x->bufsize   = 2048;
78        x->hopsize   = x->bufsize / 2;
79
80        //FIXME: get the real samplerate
81        x->o = new_aubio_pitchdetection(x->bufsize*4, 
82                    x->hopsize, 1, 44100., type_pitch, mode_pitch);
83        x->vec = (fvec_t *)new_fvec(x->hopsize,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_pitchdetection(x->o);
95        del_fvec(x->vec);
96        return 0;
97}
98
99void aubiopitch_tilde_setup (void)
100{
101        aubiopitch_tilde_class = class_new (gensym ("aubiopitch~"),
102                        (t_newmethod)aubiopitch_tilde_new,
103                        (t_method)aubiopitch_tilde_del,
104                        sizeof (t_aubiopitch_tilde),
105                        CLASS_DEFAULT, A_DEFFLOAT, 0);
106        class_addmethod(aubiopitch_tilde_class, 
107                        (t_method)aubiopitch_tilde_dsp, 
108                        gensym("dsp"), 0);
109        class_addmethod(aubiopitch_tilde_class, 
110                        (t_method)aubiopitch_tilde_debug,
111                        gensym("debug"), 0);
112        class_sethelpsymbol(aubiopitch_tilde_class, 
113                        gensym("help-aubiopitch~.pd"));
114        CLASS_MAINSIGNALIN(aubiopitch_tilde_class, 
115                        t_aubiopitch_tilde, threshold);
116}
117
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