wrap direct ffmpeg reference

2019-07-22 09:26:38 -07:00
parent 1d25fbd9e7
commit 71e6e3143b
6 changed files with 18 additions and 14 deletions
@@ -1,6 +1,11 @@
 #include "decibel.h"

-decibel::decibel()
-{
+#include <QtMath>

+double amplitude_to_db(double amplitude) {
+  return (20.0*(qLn(amplitude)/qLn(10.0)));
+}
+
+double db_to_amplitude(double db) {
+  return qPow(M_E, (db*qLn(10.0))/20.0);
 }