diff --git a/tools/PlaYUVerTools.cpp b/tools/PlaYUVerTools.cpp
new file mode 100644
index 0000000..6d2e9c6
--- /dev/null
+++ b/tools/PlaYUVerTools.cpp
@@ -0,0 +1,171 @@
+/*    This file is a part of plaYUVer project
+ *    Copyright (C) 2014-2015  by Luis Lucas      (luisfrlucas@gmail.com)
+ *                                Joao Carreira   (jfmcarreira@gmail.com)
+ *
+ *    This program is free software; you can redistribute it and/or modify
+ *    it under the terms of the GNU General Public License as published by
+ *    the Free Software Foundation; either version 2 of the License, or
+ *    (at your option) any later version.
+ *
+ *    This program is distributed in the hope that it will be useful,
+ *    but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *    GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License along
+ *   with this program; if not, write to the Free Software Foundation, Inc.,
+ *   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+/**
+ * \file     PlaYUVerTools.cpp
+ * \brief    Main definition of the PlaYUVerTools APp
+ */
+
+#include "PlaYUVerTools.h"
+
+namespace plaYUVer
+{
+
+PlaYUVerTools::PlaYUVerTools()
+{
+  m_uiOperation = INVALID_OPERATION;
+}
+
+PlaYUVerTools::~PlaYUVerTools()
+{
+  for( UInt i = 0; i < m_apcInputStreams.size(); i++ )
+  {
+    m_apcInputStreams[i]->close();
+  }
+  for( UInt i = 0; i < m_apcOutputStreams.size(); i++ )
+  {
+    m_apcOutputStreams[i]->close();
+  }
+}
+
+Int PlaYUVerTools::Init( Int argc, Char *argv[] )
+{
+
+  PlaYUVerCmdParser cCommandLineParser( argc, argv );
+
+  if( !cCommandLineParser.parse() )
+  {
+    return 1;
+  }
+
+  if( cCommandLineParser.getOptionsMap().count( "input" ) )
+  {
+    if( !cCommandLineParser.getOptionsMap().count( "size" ) )
+    {
+      printf( "Invalid resolution! " );
+      return 2;
+    }
+    std::string resolutionString = cCommandLineParser.getOptionsMap()["size"].as<std::string>();
+    std::string fmtString( "yuv420p" );
+    if( cCommandLineParser.getOptionsMap().count( "pel_fmt" ) )
+    {
+      fmtString = cCommandLineParser.getOptionsMap()["pel_fmt"].as<std::string>();
+    }
+
+    std::vector<std::string> inputFileNames = cCommandLineParser.getOptionsMap()["input"].as<std::vector<std::string> >();
+
+    PlaYUVerStream* pcStream;
+    for( UInt i = 0; i < inputFileNames.size(); i++ )
+    {
+      pcStream = new PlaYUVerStream;
+      if( !pcStream->open( inputFileNames[i], resolutionString, fmtString, 1 ) )
+      {
+        printf( "Error opening file %s! ", inputFileNames[i].c_str() );
+        return 2;
+      }
+      m_apcInputStreams.push_back( pcStream );
+    }
+    m_uiNumberOfFrames = MAX_UINT;
+    UInt currFrameNum;
+    for( UInt i = 0; i < m_apcInputStreams.size(); i++ )
+    {
+      currFrameNum = m_apcInputStreams[i]->getFrameNum();
+      if( currFrameNum < m_uiNumberOfFrames )
+        m_uiNumberOfFrames = currFrameNum;
+    }
+  }
+
+  if( cCommandLineParser.getOptionsMap().count( "quality" ) )
+  {
+    m_uiOperationIndex = -1;
+    std::string qualityMetric = cCommandLineParser.getOptionsMap()["quality"].as<std::string>();
+    if( m_apcInputStreams.size() != 2 )
+    {
+      printf( "Invalid number of inputs! " );
+      return 2;
+    }
+    for( UInt i = 0; i < PlaYUVerFrame::supportedQualityMetricsList().size(); i++ )
+    {
+      if( lowercase( PlaYUVerFrame::supportedQualityMetricsList()[i] ) == lowercase( qualityMetric ) )
+      {
+        m_uiOperationIndex = i;
+      }
+    }
+    if( m_uiOperationIndex == -1 )
+    {
+      printf( "Invalid quality metric! " );
+      return 2;
+    }
+    m_uiOperation = QUALITY_OPERATION;
+  }
+
+  if( m_uiOperation == INVALID_OPERATION )
+  {
+    printf( "No operation was selected! " );
+    return 2;
+  }
+  return 0;
+}
+
+Void PlaYUVerTools::Process()
+{
+  switch( m_uiOperation )
+  {
+  case QUALITY_OPERATION:
+    qualityOperation();
+    break;
+  }
+}
+
+Void PlaYUVerTools::qualityOperation()
+{
+  PlaYUVerFrame* apcCurrFrame[m_apcInputStreams.size()];
+  Bool abEOF[m_apcInputStreams.size()];
+  Double dQuality;
+
+  for( UInt i = 0; i < m_apcInputStreams.size(); i++ )
+    abEOF[i] = false;
+
+  for( UInt frame = 0; frame < m_uiNumberOfFrames; frame++ )
+  {
+    printf( "   %3d", frame );
+    for( UInt i = 0; i < m_apcInputStreams.size(); i++ )
+      apcCurrFrame[i] = m_apcInputStreams[i]->getCurrFrame();
+
+    for( UInt i = 1; i < m_apcInputStreams.size(); i++ )
+    {
+      printf( "  " );
+      for( Int component = 0; component < 3; component++ )
+      {
+        dQuality = apcCurrFrame[i]->getQuality( m_uiOperationIndex, apcCurrFrame[0], component );
+        printf( " %5.3f", dQuality );
+      }
+    }
+    printf( "\n" );
+    for( UInt i = 0; i < m_apcInputStreams.size(); i++ )
+    {
+      if( !abEOF[i] )
+        m_apcInputStreams[i]->readFrame();
+      abEOF[i] |= m_apcInputStreams[i]->checkErrors( PlaYUVerStream::LAST_FRAME );
+      m_apcInputStreams[i]->setNextFrame();
+    }
+  }
+}
+
+}  // NAMESPACE
diff --git a/tools/PlaYUVerTools.h b/tools/PlaYUVerTools.h
new file mode 100644
index 0000000..ce3b48d
--- /dev/null
+++ b/tools/PlaYUVerTools.h
@@ -0,0 +1,65 @@
+/*    This file is a part of plaYUVer project
+ *    Copyright (C) 2014-2015  by Luis Lucas      (luisfrlucas@gmail.com)
+ *                                Joao Carreira   (jfmcarreira@gmail.com)
+ *
+ *    This program is free software; you can redistribute it and/or modify
+ *    it under the terms of the GNU General Public License as published by
+ *    the Free Software Foundation; either version 2 of the License, or
+ *    (at your option) any later version.
+ *
+ *    This program is distributed in the hope that it will be useful,
+ *    but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *    GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License along
+ *   with this program; if not, write to the Free Software Foundation, Inc.,
+ *   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+/**
+ * \file     PlaYUVerTools.h
+ * \brief    Main definition of the PlaYUVerTools app
+ */
+
+#ifndef __PLAYUVERAPP_H__
+#define __PLAYUVERAPP_H__
+
+#include "config.h"
+#include "lib/PlaYUVerDefs.h"
+#include <lib/PlaYUVerCmdParser.h>
+#include <lib/PlaYUVerFrame.h>
+#include <lib/PlaYUVerStream.h>
+
+namespace plaYUVer
+{
+
+class PlaYUVerTools
+{
+public:
+  PlaYUVerTools();
+  ~PlaYUVerTools();
+
+  Int Init( Int argc, Char *argv[] );
+  Void Process();
+
+private:
+  UInt m_uiOperation;
+  Int m_uiOperationIndex;
+  enum TOOLS_OPERATIONS_LIST
+  {
+    INVALID_OPERATION,
+    QUALITY_OPERATION,
+    MODULE_OPERATION,
+  };
+
+  UInt m_uiNumberOfFrames;
+  std::vector<PlaYUVerStream*> m_apcInputStreams;
+  std::vector<PlaYUVerStream*> m_apcOutputStreams;
+
+  Void qualityOperation();
+};
+
+}  // NAMESPACE
+
+#endif // __PLAYUVERTOOLS_H__