thing

goertzel.c

@@ -6,70 +6,31 @@
 #include <math.h>
 
 
-void goertzel_init(
-        Goertzel *g,
-        float freq,
-        float sampleRate,
-        int samples)
+void goertzel_init(Goertzel *g, float freq, float sampleRate, int samples)
 {
-
-    float omega =
-        2.0f * M_PI * freq / sampleRate;
-
-
-    g->coeff =
-        2.0f*cosf(omega);
-
-
+    float omega = 2.0f * M_PI * freq / sampleRate;
+    g->coeff = 2.0f*cosf(omega);
     g->s1=0;
     g->s2=0;
-
 }
 
-
-
-void goertzel_add(
-        Goertzel *g,
-        float sample)
+void goertzel_add(Goertzel *g, float sample)
 {
-
-    float s =
-        sample +
-        g->coeff*g->s1 -
-        g->s2;
-
-
+    float s = sample + g->coeff*g->s1 - g->s2;
     g->s2=g->s1;
     g->s1=s;
-
 }
 
-
-
-float goertzel_energy(
-        Goertzel *g)
+float goertzel_energy(Goertzel *g)
 {
-
-    float power =
-        g->s1*g->s1 +
-        g->s2*g->s2 -
-        g->coeff*g->s1*g->s2;
-
-
+    float power = g->s1*g->s1 + g->s2*g->s2 - g->coeff*g->s1*g->s2;
     g->s1=0;
     g->s2=0;
-
-
     return power;
-
 }
 
-int goertzel_bin_freq(
-        int freq,
-        int sampleRate,
-        int samples)
+int goertzel_bin_freq(int freq, int sampleRate, int samples)
 {
     int bin = (freq * samples + sampleRate / 2) / sampleRate;
-
     return bin * sampleRate / samples;
 }