1 files changed, 1 insertions, 0 deletions
diff --git a/helper.h b/helper.h
index 9b4a5c9..70d2836 100644
--- a/helper.h
+++ b/helper.h
@@ -9,6 +9,7 @@ class QAction;
 namespace Helper {
     QIcon iconFromQChar(const QChar &c, int pixelSize);
     QAction* createSeparator(QObject *parent);
+    quint64 lengthInSeconds(const QString &file);
 }
 
 #endif // HELPER_H