diff --git a/app/CMakeLists.txt b/app/CMakeLists.txt
index be5c85a..080403a 100644
--- a/app/CMakeLists.txt
+++ b/app/CMakeLists.txt
@@ -30,10 +30,10 @@ IF( USE_QT4 )
 ENDIF()
 
 IF( NOT USE_QT4 )
-  FIND_PACKAGE( Qt5 REQUIRED COMPONENTS Core Gui Widgets PrintSupport )
+  FIND_PACKAGE( Qt5 REQUIRED COMPONENTS Core Gui Widgets PrintSupport Concurrent )
   FIND_PACKAGE( Qt5DBus )
-  LIST(APPEND QT_LINKER_LIBS Qt5::Core Qt5::Gui Qt5::Widgets Qt5::PrintSupport )
-  LIST(APPEND QT_MODULES Core Gui Widgets )
+  LIST(APPEND QT_LINKER_LIBS Qt5::Core Qt5::Gui Qt5::Widgets Qt5::PrintSupport Qt5::Concurrent )
+  LIST(APPEND QT_MODULES Core Gui Widgets PrintSupport Concurrent )
   IF( ${Qt5DBus_FOUND} )
     SET( USE_QTDBUS ${Qt5DBus_FOUND} )
     LIST(APPEND QT_LINKER_LIBS Qt5::DBus )
diff --git a/app/VideoSubWindow.cpp b/app/VideoSubWindow.cpp
index 74a383b..f1c48d2 100644
--- a/app/VideoSubWindow.cpp
+++ b/app/VideoSubWindow.cpp
@@ -454,16 +454,25 @@ Bool VideoSubWindow::play()
   return m_bIsPlaying;
 }
 
+#include "QtConcurrent/qtconcurrentrun.h"
+
 Bool VideoSubWindow::playEvent()
 {
   Bool bEndOfSeq = false;
   if( m_pCurrStream && m_bIsPlaying )
   {
+#ifndef QT_NO_CONCURRENT
+    m_cReadResult.waitForFinished();
+#endif
     bEndOfSeq = m_pCurrStream->setNextFrame();
     if( !bEndOfSeq )
     {
       refreshFrame();
+#ifndef QT_NO_CONCURRENT
+      m_cReadResult = QtConcurrent::run(m_pCurrStream, &PlaYUVerStream::readFrame);
+#else
       m_pCurrStream->readFrame();
+#endif
     }
   }
   return bEndOfSeq;
diff --git a/app/VideoSubWindow.h b/app/VideoSubWindow.h
index 6000295..a6fe546 100644
--- a/app/VideoSubWindow.h
+++ b/app/VideoSubWindow.h
@@ -32,6 +32,7 @@
 #elif( QT_VERSION_PLAYUVER == 4 )
 #include <QtGui>
 #endif
+#include "QFuture"
 #include "lib/PlaYUVerStream.h"
 #include "SubWindowHandle.h"
 #include "ViewArea.h"
@@ -83,6 +84,12 @@ private:
   Bool m_bIsPlaying;
   Bool m_bIsModule;
 
+  /**
+   * Threads variables
+   * QtConcurrent
+   */
+  QFuture<Void> m_cReadResult;
+
   static Bool guessFormat( QString filename, UInt& rWidth, UInt& rHeight, Int& rInputFormat, UInt& rFrameRate );
 
   /**
diff --git a/lib/PlaYUVerStream.cpp b/lib/PlaYUVerStream.cpp
index ad364e4..dd87108 100644
--- a/lib/PlaYUVerStream.cpp
+++ b/lib/PlaYUVerStream.cpp
@@ -481,7 +481,7 @@ Void PlaYUVerStream::readFrame()
   if( !m_bInit || !m_bIsInput || m_bLoadAll )
     return;
 
-  if( m_uiCurrFrameFileIdx >= Int64( m_uiTotalFrameNum ) )
+  if( m_uiCurrFrameFileIdx >= m_uiTotalFrameNum )
   {
     m_pcNextFrame = NULL;
     return;
@@ -641,7 +641,6 @@ PlaYUVerFrame* PlaYUVerStream::getNextFrame()
   return m_pcNextFrame;
 }
 
-
 Bool PlaYUVerStream::seekInput( UInt64 new_frame_num )
 {
   if( !m_bInit || new_frame_num < 0 || new_frame_num >= m_uiTotalFrameNum || ( Int64 )new_frame_num == m_iCurrFrameNum )