Add new module FrameResampling and change opencv interface

modules/FrameResampling.cpp

@@ -0,0 +1,104 @@
+/*    This file is a part of Calyp project
+ *    Copyright (C) 2014-2019  by Joao Carreira   (jfmcarreira@gmail.com)
+ *                                Luis Lucas      (luisfrlucas@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     FrameResampling.cpp
+ * \brief    Modules to resampling frames
+ */
+
+#include "FrameResampling.h"
+
+#include <cstdlib>
+
+// OpenCV
+#include <opencv2/core/core.hpp>
+#include <opencv2/imgproc.hpp>
+
+using cv::Mat;
+using cv::Size;
+
+FrameResampling::FrameResampling()
+{
+  /* Module Definition */
+  m_iModuleAPI = CLP_MODULE_API_2;
+  m_iModuleType = CLP_FRAME_PROCESSING_MODULE;
+  m_pchModuleCategory = "Utilities";
+  m_pchModuleName = "FrameResampling";
+  m_pchModuleLongName = "Frame Resampling";
+  m_pchModuleTooltip = "Resampling frame to an abritary resolution";
+  m_uiNumberOfFrames = 1;
+  m_uiModuleRequirements = CLP_MODULE_REQUIRES_OPTIONS;
+
+  m_cModuleOptions.addOptions()                              /**/
+      ( "width", m_iWidth, "Width of the crop region [-1]" ) /**/
+      ( "height", m_iHeight, "Height of the crop region [-1]" ) /**/
+      ( "Interpolation", m_iInterpolation, "Interpolation method (1-4) [4]" )                  ;
+
+  m_iInterpolation = 4;
+  m_iWidth = -1;
+  m_iHeight = -1;
+}
+
+bool FrameResampling::create( std::vector<CalypFrame*> apcFrameList )
+{
+  switch( m_iInterpolation )
+  {
+  case 2:
+    m_iInterpolation = cv::INTER_LINEAR;
+    break;
+  case 3:
+    m_iInterpolation = cv::INTER_CUBIC;
+    break;
+  case 4:
+    m_iInterpolation = cv::INTER_LANCZOS4;
+    break;
+  default:
+    m_iInterpolation = cv::INTER_NEAREST;
+  }
+  if( m_iWidth == -1 )
+  {
+    m_iWidth = apcFrameList[0]->getWidth();
+  }
+  if( m_iHeight == -1 )
+  {
+    m_iHeight = apcFrameList[0]->getHeight() * double( m_iWidth ) / double( apcFrameList[0]->getWidth() );
+  }
+  m_pcOutputFrame = new CalypFrame( m_iWidth, m_iHeight, apcFrameList[0]->getPelFormat(), apcFrameList[0]->getBitsPel() );
+  return m_pcOutputFrame;
+}
+
+CalypFrame* FrameResampling::process( std::vector<CalypFrame*> apcFrameList )
+{
+  m_pcOutputFrame->reset();
+  for( unsigned ch = 0; ch < apcFrameList[0]->getNumberChannels(); ch++ )
+  {
+    Mat inputFrame, outputFrame;
+    cv::Size outSize( m_pcOutputFrame->getWidth( ch ), m_pcOutputFrame->getHeight( ch ) );
+    apcFrameList[0]->toMat( inputFrame, true, false, ch );
+    cv::resize( inputFrame, outputFrame, outSize, 0, 0, m_iInterpolation );
+    m_pcOutputFrame->fromMat( outputFrame, ch );
+  }
+  return m_pcOutputFrame;
+}
+
+void FrameResampling::destroy()
+{
+  if( m_pcOutputFrame )
+    delete m_pcOutputFrame;
+}