diff --git a/source/app/SubWindowHandle.cpp b/source/app/SubWindowHandle.cpp
index bb8b2e0..92464cd 100644
--- a/source/app/SubWindowHandle.cpp
+++ b/source/app/SubWindowHandle.cpp
@@ -202,6 +202,12 @@ Int SubWindowHandle::playEvent()
   return -1;
 }
 
+Void SubWindowHandle::pause()
+{
+  m_bIsPlaying = false;
+  return;
+}
+
 Void SubWindowHandle::seekAbsoluteEvent( UInt new_frame_num )
 {
   m_pCurrStream->seekInput( new_frame_num );
diff --git a/source/app/SubWindowHandle.h b/source/app/SubWindowHandle.h
index 154a355..928cdfe 100644
--- a/source/app/SubWindowHandle.h
+++ b/source/app/SubWindowHandle.h
@@ -68,6 +68,7 @@ public:
   Bool save();
 
   Void play();
+  Void pause();
   Int playEvent();
   Void stop();
 
diff --git a/source/app/plaYUVerApp.cpp b/source/app/plaYUVerApp.cpp
index 3c37f83..6e3bc5e 100644
--- a/source/app/plaYUVerApp.cpp
+++ b/source/app/plaYUVerApp.cpp
@@ -263,33 +263,30 @@ void plaYUVerApp::play()
 
 void plaYUVerApp::pause()
 {
+  for( Int i = 0; i < m_acPlayingSubWindows.size(); i++ )
+  {
+    m_acPlayingSubWindows.at( i )->pause();
+  }
   playingTimer->stop();
 }
 
 void plaYUVerApp::stop()
 {
-  if( m_acPlayingSubWindows.size() )
+  for( Int i = 0; i < m_acPlayingSubWindows.size(); i++ )
   {
-    for( Int i = 0; i < m_acPlayingSubWindows.size(); i++ )
-    {
-      m_acPlayingSubWindows.at( i )->stop();
-    }
-    m_acPlayingSubWindows.clear();
-    playingTimer->stop();
-    m_pcFrameSlider->setValue( m_pcCurrentSubWindow->getInputStream()->getCurrFrameNum() );
+    m_acPlayingSubWindows.at( i )->stop();
+  }
+  m_acPlayingSubWindows.clear();
+  playingTimer->stop();
+  m_pcFrameSlider->setValue( m_pcCurrentSubWindow->getInputStream()->getCurrFrameNum() );
+
+  if( m_uiAveragePlayInterval )
+    qDebug( ) << "Real display time: "
+              << QString::number( 1000 / m_uiAveragePlayInterval )
+              << " fps";
+  m_uiAveragePlayInterval = 0;
+
 
-    if( m_uiAveragePlayInterval )
-      qDebug( ) << "Real display time: "
-                << QString::number( 1000 / m_uiAveragePlayInterval )
-                << " fps";
-    m_uiAveragePlayInterval = 0;
-  }
-  else
-  {
-    m_pcCurrentSubWindow->stop();
-    playingTimer->stop();
-    m_pcFrameSlider->setValue( m_pcCurrentSubWindow->getInputStream()->getCurrFrameNum() );
-  }
 }
 
 void plaYUVerApp::playEvent()