1 files changed, 101 insertions, 0 deletions
diff --git a/framescore~/framescore~.c b/framescore~/framescore~.c
new file mode 100644
index 0000000..71a6d39
--- /dev/null
+++ b/framescore~/framescore~.c
@@ -0,0 +1,101 @@
+/*
+ *  framescore~ : Weighted block comparison.
+ *  Copyright (C) 2005 Edward Kelly <morph_2016@yahoo.co.uk>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+#include "m_pd.h"
+
+static t_class *framescore_tilde_class;
+
+typedef struct _framescore_tilde 
+{
+  t_object x_obj;
+  t_float f;
+  t_float f_max, f_win, f_accum;
+  t_outlet *f_score;
+} t_framescore_tilde;
+
+t_int *framescore_tilde_perform(t_int *w)
+{
+  t_framescore_tilde *x = (t_framescore_tilde *)(w[1]);
+  t_sample         *in1 =           (t_sample *)(w[2]);
+  t_sample         *in2 =           (t_sample *)(w[3]);
+  int                 n =                  (int)(w[4]);
+  float vector1;
+  float vector2;
+  x->f_accum = 0;
+  float block_accum = 0;
+  x->f_max = 0;
+  float score = 0;
+  float avg = 0;
+  int block = n;
+  x->f_win = x->f_win > 0 ? x->f_win : 0.01;
+
+  while (n--)
+    {
+      vector1 = (*in1++);
+      vector2 = (*in2++);
+      vector1 = vector1 > 0 ? vector1 : 0 - vector1;
+      vector2 = vector2 > 0 ? vector2 : 0 - vector2;
+      block_accum += vector2;
+      x->f_max = vector2 > x->f_max ? vector2 : x->f_max;
+      float diff = vector1 > vector2 ? vector1 - vector2 : vector2 - vector1;
+      x->f_accum += (1/((diff/x->f_win)+1)) * vector2;
+    }
+  score = x->f_accum / x->f_max;
+  block_accum /= x->f_max;
+  avg = score / block_accum;
+  outlet_float(x->f_score, avg);
+  
+  return(w+5);
+}
+
+void framescore_tilde_dsp(t_framescore_tilde *x, t_signal **sp)
+{
+  dsp_add(framescore_tilde_perform, 4, x,
+	  sp[0]->s_vec, sp[1]->s_vec, sp[0]->s_n);
+}
+
+void *framescore_tilde_new(t_floatarg f)
+{
+  t_framescore_tilde *x = (t_framescore_tilde *)pd_new(framescore_tilde_class);
+
+  x->f_win = f;
+
+  inlet_new (&x->x_obj, &x->x_obj.ob_pd, &s_signal, &s_signal);
+  floatinlet_new (&x->x_obj, &x->f_win);
+  x->f_score = outlet_new(&x->x_obj, gensym("float"));
+
+  return (void *)x;
+}
+
+
+void framescore_tilde_setup(void)
+{
+  framescore_tilde_class = class_new(gensym("framescore~"),
+				     (t_newmethod)framescore_tilde_new,
+				     0, sizeof(t_framescore_tilde),
+				     CLASS_DEFAULT, A_DEFFLOAT, 0);
+
+  post("|+++++++++++framescore~+++++++++++++|");
+  post("|+++++weighted block comparison+++++|");
+  post("|+++edward+++++++kelly+++++++2005+++|");
+
+  class_addmethod(framescore_tilde_class, (t_method)framescore_tilde_dsp,
+		  gensym("dsp"), 0);
+  class_sethelpsymbol(framescore_tilde_class, gensym("help-framescore~"));
+  CLASS_MAINSIGNALIN(framescore_tilde_class, t_framescore_tilde, f);
+}