Files
calyp/modules/FrameShift.cpp
T
2017-03-23 04:29:34 +00:00

145 lines
4.6 KiB
C++

/* This file is a part of plaYUVer project
* Copyright (C) 2014-2017 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 FrameShift.cpp
* \brief Shift image
*/
#include "FrameShift.h"
FrameShift::FrameShift()
{
/* Module Definition */
m_iModuleAPI = MODULE_API_2;
m_iModuleType = FRAME_PROCESSING_MODULE;
m_pchModuleCategory = "Utilities";
m_pchModuleName = "FrameShift";
m_pchModuleTooltip = "Shift frame";
m_uiNumberOfFrames = MODULE_REQUIRES_ONE_FRAME;
m_uiModuleRequirements = MODULE_REQUIRES_OPTIONS | MODULE_USES_KEYS;
m_cModuleOptions.addOptions() /**/
( "ShiftHorizontal", m_iShiftHor, "Amount of pixels to shift in horizontal direction" ) /**/
( "ShiftVertical", m_iShiftVer, "Amount of pixels to shift in vertical direction" );
m_pcProcessedFrame = NULL;
m_iShiftHor = 0;
m_iShiftVer = 0;
}
Bool FrameShift::create( std::vector<PlaYUVerFrame*> apcFrameList )
{
_BASIC_MODULE_API_2_CHECK_
m_pcProcessedFrame = new PlaYUVerFrame( apcFrameList[0] );
return true;
}
PlaYUVerFrame* FrameShift::process( std::vector<PlaYUVerFrame*> apcFrameList )
{
Pel* pPelInput;
Pel* pPelOut;
UInt xStartOut = m_iShiftHor >= 0 ? m_iShiftHor : 0;
UInt xStartIn = m_iShiftHor >= 0 ? 0 : -m_iShiftHor;
UInt xEndOut = m_iShiftHor >= 0 ? m_pcProcessedFrame->getWidth()
: m_pcProcessedFrame->getWidth() + m_iShiftHor;
UInt yStartOut = m_iShiftVer >= 0 ? m_iShiftVer : 0;
UInt yStartIn = m_iShiftVer >= 0 ? 0 : -m_iShiftVer;
UInt yEndOut = m_iShiftVer >= 0 ? m_pcProcessedFrame->getHeight()
: m_pcProcessedFrame->getHeight() + m_iShiftVer;
m_pcProcessedFrame->clear();
for( UInt y = yStartOut, yIn = yStartIn; y < yEndOut; y++, yIn++ )
{
pPelInput = &( apcFrameList[0]->getPelBufferYUV()[LUMA][yIn][xStartIn] );
pPelOut = &( m_pcProcessedFrame->getPelBufferYUV()[LUMA][y][xStartOut] );
for( UInt x = xStartOut; x < xEndOut; x++ )
{
*pPelOut = *pPelInput;
pPelInput++;
pPelOut++;
}
}
Int iShiftHorChroma = CHROMASHIFT( m_iShiftHor, m_pcProcessedFrame->getChromaWidthRatio() );
Int iShiftVerChroma = CHROMASHIFT( m_iShiftVer, m_pcProcessedFrame->getChromaHeightRatio() );
xStartOut = iShiftHorChroma >= 0 ? iShiftHorChroma : 0;
xStartIn = iShiftHorChroma >= 0 ? 0 : -iShiftHorChroma;
xEndOut = iShiftHorChroma >= 0 ? m_pcProcessedFrame->getChromaWidth()
: m_pcProcessedFrame->getChromaWidth() + iShiftHorChroma;
yStartOut = iShiftVerChroma >= 0 ? iShiftVerChroma : 0;
yStartIn = iShiftVerChroma >= 0 ? 0 : -iShiftVerChroma;
yEndOut = iShiftVerChroma >= 0 ? m_pcProcessedFrame->getChromaHeight()
: m_pcProcessedFrame->getChromaHeight() + iShiftVerChroma;
for( UInt c = 1; c < m_pcProcessedFrame->getNumberChannels(); c++ )
{
for( UInt y = yStartOut, yIn = yStartIn; y < yEndOut; y++, yIn++ )
{
pPelInput = &( apcFrameList[0]->getPelBufferYUV()[c][yIn][xStartIn] );
pPelOut = &( m_pcProcessedFrame->getPelBufferYUV()[c][y][xStartOut] );
for( UInt x = xStartOut; x < xEndOut; x++ )
{
*pPelOut = *pPelInput;
pPelInput++;
pPelOut++;
}
}
}
return m_pcProcessedFrame;
}
Bool FrameShift::keyPressed( enum Module_Key_Supported value )
{
if( value == MODULE_KEY_LEFT )
{
m_iShiftHor -= 1;
return true;
}
if( value == MODULE_KEY_RIGHT )
{
m_iShiftHor += 1;
return true;
}
if( value == MODULE_KEY_UP )
{
m_iShiftVer -= 1;
return true;
}
if( value == MODULE_KEY_DOWN )
{
m_iShiftVer += 1;
return true;
}
return false;
}
Void FrameShift::destroy()
{
if( m_pcProcessedFrame )
delete m_pcProcessedFrame;
m_pcProcessedFrame = NULL;
}