70 lines
2.3 KiB
C++
70 lines
2.3 KiB
C++
/* This file is a part of plaYUVer project
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* Copyright (C) 2014-2017 by Luis Lucas (luisfrlucas@gmail.com)
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* Joao Carreira (jfmcarreira@gmail.com)
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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/**
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* \file SetChromaHalfScale.cpp
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* \brief Set chrome value to half scale (gray)
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*/
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#include "SetChromaHalfScale.h"
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SetChromaHalfScale::SetChromaHalfScale()
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{
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/* Module Definition */
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m_iModuleType = FRAME_PROCESSING_MODULE;
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m_pchModuleCategory = "Conversions";
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m_pchModuleName = "SetChromaHalfScale";
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m_pchModuleTooltip = "Copy frame only keeping luma component";
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m_uiNumberOfFrames = MODULE_REQUIRES_ONE_FRAME;
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m_uiModuleRequirements = MODULE_REQUIRES_NOTHING;
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m_pcProcessedFrame = NULL;
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}
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Void SetChromaHalfScale::create( PlaYUVerFrame* frame )
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{
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m_pcProcessedFrame = NULL;
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m_pcProcessedFrame = new PlaYUVerFrame( frame->getWidth(), frame->getHeight(),
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frame->getPelFormat(), frame->getBitsPel() );
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}
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PlaYUVerFrame* SetChromaHalfScale::process( PlaYUVerFrame* frame )
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{
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Pel* pPelInput = frame->getPelBufferYUV()[LUMA][0];
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Pel* pPelOut = m_pcProcessedFrame->getPelBufferYUV()[0][0];
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Pel halfScaleValue = 1 << ( frame->getBitsPel() - 1 );
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for( UInt i = 0; i < frame->getHeight() * frame->getWidth(); i++ )
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{
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*pPelOut++ = *pPelInput++;
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}
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pPelInput = frame->getPelBufferYUV()[CHROMA_U][0];
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for( UInt i = 0; i < m_pcProcessedFrame->getChromaLength() * 2; i++ )
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{
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*pPelOut++ = halfScaleValue;
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}
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return m_pcProcessedFrame;
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}
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Void SetChromaHalfScale::destroy()
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{
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if( m_pcProcessedFrame )
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delete m_pcProcessedFrame;
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m_pcProcessedFrame = NULL;
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}
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