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
@@ -16,6 +16,7 @@

 set(OLIVE_SOURCES
  ${OLIVE_SOURCES}
+  common/channellayout.h
  common/clamp.h
  common/lerp.h
  common/rational.h
@@ -0,0 +1,8 @@
+#ifndef CHANNELLAYOUT_H
+#define CHANNELLAYOUT_H
+
+extern "C" {
+#include <libavcodec/avcodec.h>
+}
+
+#endif // CHANNELLAYOUT_H
@@ -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);
 }