diff --git a/source/app/InputStream.cpp b/source/app/InputStream.cpp
index 6d26a5a..84c4627 100755
--- a/source/app/InputStream.cpp
+++ b/source/app/InputStream.cpp
@@ -40,25 +40,20 @@ namespace plaYUVer
 
 InputStream::InputStream()
 {
-  m_iStatus = 0;
+  m_bInit = false;
+  m_iErrorStatus = 0;
 
   m_pFile = NULL;
   m_uiWidth = 0;
   m_uiHeight = 0;
   m_uiTotalFrameNum = 0;
   m_iCurrFrameNum = -1;
-  m_iErrorStatus = 0;
   m_iPixelFormat = -1;
-
-  m_uiFrameRate = 25;
-
+  m_uiFrameRate = 30;
   m_iFileFormat = INVALID;
-
   m_pInputBuffer = NULL;
-
   m_cFilename = QString( "" );
   m_cStreamInformationString = QString( "" );
-
   m_pcCurrFrame = NULL;
   m_pcNextFrame = NULL;
   m_ppcFrameBuffer = NULL;
@@ -152,15 +147,16 @@ Bool InputStream::guessFormat( QString filename, UInt& rWidth, UInt& rHeight, In
   return bRet;
 }
 
-Void InputStream::init( QString filename, UInt width, UInt height, Int input_format, UInt frame_rate )
+Bool InputStream::open( QString filename, UInt width, UInt height, Int input_format, UInt frame_rate )
 {
   Bool avStatus = false;
 
-  if( m_iStatus == 1 )
+  if( m_bInit )
   {
     close();
   }
 
+  m_bInit = false;
   m_cFilename = filename;
   m_uiWidth = width;
   m_uiHeight = height;
@@ -181,8 +177,7 @@ Void InputStream::init( QString filename, UInt width, UInt height, Int input_for
 
   if( m_uiWidth <= 0 || m_uiHeight <= 0 )
   {
-    //Error
-    return;
+    return m_bInit;
   }
 
   getMem1D<PlaYUVerFrame*>( &m_ppcFrameBuffer, m_uiFrameBufferSize );
@@ -200,20 +195,18 @@ Void InputStream::init( QString filename, UInt width, UInt height, Int input_for
     m_pFile = fopen( m_cFilename.toLocal8Bit().data(), "rb" );
     if( m_pFile == NULL )
     {
-      // Error
-      return;
+      close();
+      return m_bInit;
     }
     fseek( m_pFile, 0, SEEK_END );
     m_uiTotalFrameNum = ftell( m_pFile ) / ( frame_bytes_input );
     fseek( m_pFile, 0, SEEK_SET );
-
     m_cFormatName = QString::fromUtf8( "Raw Video" );
-
   }
   if( !getMem1D<Pel>( &m_pInputBuffer, m_pcCurrFrame->getBytesPerFrame() ) )
   {
-    //Error
-    return;
+    close();
+    return m_bInit;
   }
 
   m_cStreamInformationString = QString( "[" );
@@ -224,12 +217,14 @@ Void InputStream::init( QString filename, UInt width, UInt height, Int input_for
   m_cStreamInformationString.append( QFileInfo( m_cFilename ).fileName() );
 
   m_iCurrFrameNum = -1;
-  m_iStatus = 1;
-
   readNextFrame();
   setNextFrame();
-  readNextFrame();
-  return;
+  if( m_uiTotalFrameNum > 1 )
+    readNextFrame();
+
+  m_bInit = true;
+
+  return m_bInit;
 }
 
 Void InputStream::close()
diff --git a/source/app/InputStream.h b/source/app/InputStream.h
index 4f81792..4b296e5 100755
--- a/source/app/InputStream.h
+++ b/source/app/InputStream.h
@@ -59,6 +59,7 @@ class InputStream
 {
 private:
 
+  Bool m_bInit;
   Int m_iStatus;
   Int m_iErrorStatus;
 
@@ -106,7 +107,7 @@ public:
   Bool needFormatDialog( QString filename );
   Bool guessFormat( QString filename, UInt& rWidth, UInt& rHeight, Int& rInputFormat, UInt& rFrameRate );
 
-  Void init( QString filename, UInt width, UInt height, Int input_format, UInt frame_rate );
+  Bool open( QString filename, UInt width, UInt height, Int input_format, UInt frame_rate );
   Void close();
 
   Void readNextFrame();
@@ -121,9 +122,9 @@ public:
 
   Bool checkErrors( Int error_type );
 
-  Int getStatus()
+  Bool isInit()
   {
-    return m_iStatus;
+    return m_bInit;
   }
   QString getFileName()
   {
diff --git a/source/app/SubWindowHandle.cpp b/source/app/SubWindowHandle.cpp
index 6c0a1d2..ad94ac3 100644
--- a/source/app/SubWindowHandle.cpp
+++ b/source/app/SubWindowHandle.cpp
@@ -85,15 +85,10 @@ Bool SubWindowHandle::loadFile( const QString &fileName )
     {
       return false;
     }
-    m_pCurrStream->init( fileName, Width, Height, InputFormat, FrameRate );
-  }
-  else
-  {
-    m_pCurrStream->init( fileName, 0, 0, 0, 0 );
   }
   QApplication::setOverrideCursor( Qt::WaitCursor );
   QApplication::restoreOverrideCursor();
-  if( m_pCurrStream->getStatus() == 0 )
+  if( !m_pCurrStream->open( fileName, Width, Height, InputFormat, FrameRate ) )
   {
     return false;
   }
@@ -108,13 +103,9 @@ Bool SubWindowHandle::loadFile( const QString &fileName )
   refreshFrame();
   //normalSize();
 
-  m_cWindowName = QString( " " );
-  m_cWindowName = m_pCurrStream->getStreamInformationString();
-
   m_cCurrFileName = fileName;
-
+  m_cWindowName = m_pCurrStream->getStreamInformationString();
   setWindowTitle( m_cWindowName );
-
   return true;
 }
 
@@ -146,17 +137,17 @@ Void SubWindowHandle::disableModule()
 
 Void SubWindowHandle::refreshFrame()
 {
-  PlaYUVerFrame* CurrSubWindowFrame;
+  PlaYUVerFrame* currFrame;
   if( m_pcCurrentModule )
   {
-    CurrSubWindowFrame = m_pcCurrentModule->process( m_pCurrStream->getCurrFrame() );
+    currFrame = m_pcCurrentModule->process( m_pCurrStream->getCurrFrame() );
   }
   else
   {
-    CurrSubWindowFrame = m_pCurrStream->getCurrFrame();
+    currFrame = m_pCurrStream->getCurrFrame();
   }
-  CurrSubWindowFrame->FrametoRGB8();
-  QImage qimg = QImage( CurrSubWindowFrame->getQImageBuffer(), CurrSubWindowFrame->getWidth(), CurrSubWindowFrame->getHeight(), QImage::Format_RGB888 );
+  currFrame->FrametoRGB8();
+  QImage qimg = QImage( currFrame->getQImageBuffer(), currFrame->getWidth(), currFrame->getHeight(), QImage::Format_RGB888 );
   m_cViewArea->setImage( QPixmap::fromImage( qimg ) );
 }
 
@@ -167,28 +158,22 @@ Bool SubWindowHandle::save()
   formats.prepend( " (" );
   formats.append( ")" );
   supported.append( formats );  // supported=="Supported Files (*.pbm *.jpg...)"
-
   QStringList filter;
   filter << supported
          << InputStream::supportedWriteFormatsList()
          << tr( "All Files (*)" );
-
   QString fileName = QFileDialog::getSaveFileName( this, tr( "Save As" ), m_cCurrFileName, filter.join( ";;" ) );
-
   if( fileName.isEmpty() )
     return false;
 
   QApplication::setOverrideCursor( Qt::WaitCursor );
-
   if( m_pCurrFrameQImage->save( fileName ) )
   {
     QApplication::restoreOverrideCursor();
     QMessageBox::warning( this, tr( "plaYUVer" ), tr( "Cannot save file %1" ).arg( fileName ) );
     return false;
   }
-
   QApplication::restoreOverrideCursor();
-
   return true;
 }