Changeset 2319:dd014ea34d3b in roaraudio

Timestamp:

08/05/09 23:02:56 (15 years ago)

Author:

phi

Branch:

default

Phase:

public

Message:

added functions to calc RMS²⁽⁾

File:

• libroardsp/rms.c (modified) (1 diff)

libroardsp/rms.c

@@ -25 +25 @@
 #include "libroardsp.h"
 
+int64_t roar_rms2_1_8  (int8_t  * data, size_t samples) {
+ register int64_t s = 0;
+ register size_t  i;
+
+ for (i = 0; i < samples; i++)
+  s += data[i] * data[i];
+
+ s /= samples;
+
+ return s;
+}
+
+int64_t roar_rms2_1_16 (int16_t * data, size_t samples) {
+ register int64_t s = 0;
+ register size_t  i;
+
+ for (i = 0; i < samples; i++)
+  s += data[i] * data[i];
+
+ s /= samples;
+
+ return s;
+}
+
+int64_t roar_rms2_1_32 (int32_t * data, size_t samples) {
+ register int64_t s = 0;
+ register size_t  i;
+
+ for (i = 0; i < samples; i++)
+  s += data[i] * data[i];
+
+ s /= samples;
+
+ return s;
+}
+
 
 //ll