*.c: move to src/

[pd-aubio.git] / src / aubioquiet~.c

diff --git a/src/aubioquiet~.c b/src/aubioquiet~.c
new file mode 100644 (file)
index 0000000..d477cc2
--- /dev/null
+++ b/src/aubioquiet~.c
@@ -0,0 +1,116 @@
+/**
+ *
+ * a puredata wrapper for aubioquiet
+ *
+ * Thanks to Johannes M Zmolnig for writing the excellent HOWTO:
+ *       http://iem.kug.ac.at/pd/externals-HOWTO/  
+ *
+ * */
+
+#include <m_pd.h>
+#include <aubio/aubio.h>
+
+char aubioquiet_version[] = "aubioquiet~ version " PACKAGE_VERSION;
+
+static t_class *aubioquiet_tilde_class;
+
+void aubioquiet_tilde_setup (void);
+
+typedef struct _aubioquiet_tilde 
+{
+       t_object x_obj;
+       t_float threshold;
+       t_int pos; /*frames%dspblocksize*/
+       t_int bufsize;
+       t_int hopsize;
+       t_int wassilence;
+       t_int issilence;
+       fvec_t *vec;
+       t_outlet *quietbang;
+       t_outlet *noisybang;
+} t_aubioquiet_tilde;
+
+static t_int *aubioquiet_tilde_perform(t_int *w) 
+{
+       t_aubioquiet_tilde *x = (t_aubioquiet_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->hopsize-1) {         
+                       /* block loop */
+                       if (aubio_silence_detection(x->vec, x->threshold)==1) {
+                               if (x->wassilence==1) {
+                                       x->issilence = 1;
+                               } else {
+                                       x->issilence = 2;
+                                       outlet_bang(x->quietbang);
+                               }
+                               x->wassilence=1;
+                       } else { 
+                               if (x->wassilence<=0) {
+                                       x->issilence = 0;
+                               } else {
+                                       x->issilence = -1;
+                                       outlet_bang(x->noisybang);
+                               }
+                               x->wassilence=0;
+                       }
+                       /* end of block loop */
+                       x->pos = -1; /* so it will be zero next j loop */
+               }
+               x->pos++;
+       }
+       return (w+4);
+}
+
+static void aubioquiet_tilde_dsp(t_aubioquiet_tilde *x, t_signal **sp)
+{
+       dsp_add(aubioquiet_tilde_perform, 3, x, sp[0]->s_vec, sp[0]->s_n);
+}
+
+static void aubioquiet_tilde_debug(t_aubioquiet_tilde *x)
+{
+       post("aubioquiet~ bufsize:\t%d", x->bufsize);
+       post("aubioquiet~ hopsize:\t%d", x->hopsize);
+       post("aubioquiet~ threshold:\t%f", x->threshold);
+       post("aubioquiet~ audio in:\t%f", x->vec->data[0]);
+}
+
+static void *aubioquiet_tilde_new (t_floatarg f)
+{
+       t_aubioquiet_tilde *x = 
+               (t_aubioquiet_tilde *)pd_new(aubioquiet_tilde_class);
+
+       x->threshold = (f < -1000.) ? -70 : (f >= 0.) ? -70. : f;
+       x->bufsize   = 1024;
+       x->hopsize   = x->bufsize / 2;
+
+       x->vec = (fvec_t *)new_fvec(x->hopsize);
+       x->wassilence = 1;
+
+       floatinlet_new (&x->x_obj, &x->threshold);
+       x->quietbang = outlet_new (&x->x_obj, &s_bang);
+       x->noisybang = outlet_new (&x->x_obj, &s_bang);
+       post(aubioquiet_version);
+       return (void *)x;
+}
+
+void aubioquiet_tilde_setup (void)
+{
+       aubioquiet_tilde_class = class_new (gensym ("aubioquiet~"),
+                       (t_newmethod)aubioquiet_tilde_new,
+                       0, sizeof (t_aubioquiet_tilde),
+                       CLASS_DEFAULT, A_DEFFLOAT, 0);
+       class_addmethod(aubioquiet_tilde_class, 
+                       (t_method)aubioquiet_tilde_dsp, 
+                       gensym("dsp"), 0);
+       class_addmethod(aubioquiet_tilde_class, 
+                       (t_method)aubioquiet_tilde_debug,
+                       gensym("debug"), 0);
+       CLASS_MAINSIGNALIN(aubioquiet_tilde_class, 
+                       t_aubioquiet_tilde, threshold);
+}