diff -r 8aabba680598 -r bfa26daad684 QTfrontend/util/libav_iteraction.cpp
--- a/QTfrontend/util/libav_iteraction.cpp	Sun Sep 09 11:50:34 2012 +0400
+++ b/QTfrontend/util/libav_iteraction.cpp	Sun Sep 09 13:40:02 2012 +0400
@@ -65,7 +65,7 @@
 #endif
 }
 
-LibavIteraction::LibavIteraction()
+LibavIteraction::LibavIteraction() : QObject()
 {
     // initialize libav and register all codecs and formats
     av_register_all();
@@ -265,11 +265,6 @@
     return formats[format].extension;
 }
 
-QString tr(QString a)
-{
-    return a;
-}
-
 // get information abaout file (duration, resolution etc) in multiline string
 QString LibavIteraction::getFileInfo(const QString & filepath)
 {
@@ -324,7 +319,7 @@
 }
 
 #else
-LibavIteraction::LibavIteraction()
+LibavIteraction::LibavIteraction() : QObject()
 {
 
 }