304 lines
6.5 KiB
C++
Executable File
304 lines
6.5 KiB
C++
Executable File
/* This file is a part of plaYUVer project
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* Copyright (C) 2014 by plaYUVer developers
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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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/** \file InputStream.cpp
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\brief Input handling
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*/
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#include <cstdio>
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#include <QtCore>
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#include <QtDebug>
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#include "InputStream.h"
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#include "LibMemAlloc.h"
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namespace plaYUVer
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{
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InputStream::InputStream()
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{
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m_iStatus = 0;
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m_pFile = NULL;
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m_pppcInputPel[0] = NULL;
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m_pppcInputPel[1] = NULL;
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m_pppcInputPel[2] = NULL;
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m_pppcRGBPel = NULL;
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m_eFormat = INVALID;
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}
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InputStream::~InputStream()
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{
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if( m_pFile )
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fclose( m_pFile );
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if( m_pppcInputPel[0] )
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free_mem2Dpel( m_pppcInputPel[0] );
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if( m_pppcInputPel[1] )
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free_mem2Dpel( m_pppcInputPel[1] );
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if( m_pppcInputPel[2] )
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free_mem2Dpel( m_pppcInputPel[2] );
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if( m_pppcRGBPel )
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free_mem3Dpel( m_pppcRGBPel );
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m_iStatus = 0;
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}
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QString InputStream::supportedReadFormats()
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{
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QString formats;
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formats = "*.yuv " // Raw video
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;
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return formats;
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}
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QStringList InputStream::supportedReadFormatsList()
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{
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QStringList formats;
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formats << "Raw video (*.yuv)";
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return formats;
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}
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Void InputStream::init( QString filename, UInt width, UInt height )
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{
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if( width <= 0 || height <= 0 )
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{
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//Error
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return;
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}
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m_cFilename = filename;
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m_pFile = fopen( m_cFilename.toLocal8Bit().data(), "rb" );
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if( m_pFile == NULL )
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{
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// Error
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return;
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}
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m_uiWidth = width;
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m_uiHeight = height;
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m_eFormat = YUV_420p;
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UInt64 frame_bytes_input = m_uiWidth * m_uiHeight * 1.5;
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UInt64 alloc_memory;
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fseek( m_pFile, 0, SEEK_END );
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m_uiTotalFrameNum = ftell( m_pFile ) / ( frame_bytes_input );
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fseek( m_pFile, 0, SEEK_SET );
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alloc_memory = get_mem2Dpel( &( m_pppcInputPel[0] ), m_uiHeight, m_uiWidth );
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if( !alloc_memory )
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{
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//Error
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return;
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}
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alloc_memory = get_mem2Dpel( &( m_pppcInputPel[1] ), m_uiHeight / 2, m_uiWidth / 2 );
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if( !alloc_memory )
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{
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//Error
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return;
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}
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alloc_memory = get_mem2Dpel( &( m_pppcInputPel[2] ), m_uiHeight / 2, m_uiWidth / 2 );
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if( !alloc_memory )
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{
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//Error
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return;
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}
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get_mem3Dpel( &m_pppcRGBPel, 3, m_uiHeight, m_uiWidth );
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if( !alloc_memory )
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{
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//Error
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return;
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}
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m_iStatus = 1;
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return;
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}
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static inline Pel iClip3Pel( Pel pel_value, Pel min_value, Pel max_value )
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{
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if( pel_value > max_value )
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return max_value;
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if( pel_value < min_value )
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return min_value;
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return pel_value;
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}
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static inline void yuvToRgb( int iY, int iU, int iV, int &iR, int &iG, int &iB )
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{
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iR = iY + 1402 * iV / 1000;
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iG = iY - ( 101004 * iU + 209599 * iV ) / 293500;
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iB = iY + 1772 * iU / 1000;
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if( iR < 0 )
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iR = 0;
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if( iG < 0 )
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iG = 0;
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if( iB < 0 )
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iB = 0;
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if( iR > 255 )
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iR = 255;
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if( iG > 255 )
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iG = 255;
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if( iB > 255 )
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iB = 255;
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}
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Void InputStream::YUV420toRGB()
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{
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Int iY, iU, iV, iR, iG, iB;
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for( Int y = 0; y < m_uiHeight; y += 2 )
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{
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for( Int x = 0; x < m_uiWidth; x += 2 )
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{
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// Pixel (x, y).
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iY = m_pppcInputPel[0][y][x];
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iU = m_pppcInputPel[1][y >> 1][x >> 1];
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iV = m_pppcInputPel[2][y >> 1][x >> 1];
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iU -= 128;
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iV -= 128;
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yuvToRgb( iY, iU, iV, iR, iG, iB );
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m_pppcRGBPel[0][y][x] = iR;
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m_pppcRGBPel[1][y][x] = iG;
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m_pppcRGBPel[2][y][x] = iB;
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// Pixel (x+1, y)
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iY = m_pppcInputPel[0][y][x + 1];
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yuvToRgb( iY, iU, iV, iR, iG, iB );
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m_pppcRGBPel[0][y][x + 1] = iR;
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m_pppcRGBPel[1][y][x + 1] = iG;
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m_pppcRGBPel[2][y][x + 1] = iB;
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// Pixel (x, y+1)
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iY = m_pppcInputPel[0][y + 1][x];
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yuvToRgb( iY, iU, iV, iR, iG, iB );
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m_pppcRGBPel[0][y + 1][x] = iR;
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m_pppcRGBPel[1][y + 1][x] = iG;
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m_pppcRGBPel[2][y + 1][x] = iB;
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// Pixel (x+1, y+1)
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iY = m_pppcInputPel[0][y + 1][x + 1];
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yuvToRgb( iY, iU, iV, iR, iG, iB );
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m_pppcRGBPel[0][y + 1][x + 1] = iR;
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m_pppcRGBPel[1][y + 1][x + 1] = iG;
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m_pppcRGBPel[2][y + 1][x + 1] = iB;
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}
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}
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}
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Void InputStream::readFrame()
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{
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UInt64 bytes_read = 0;
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UInt64 frame_bytes_input = m_uiWidth * m_uiHeight * 1.5;
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bytes_read = fread( &( m_pppcInputPel[0][0][0] ), sizeof(Pel), m_uiWidth * m_uiHeight, m_pFile );
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if( bytes_read != ( m_uiWidth * m_uiHeight ) )
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{
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m_iErrorStatus = READING;
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qDebug() << " Reading error !!!" << endl;
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return;
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}
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bytes_read = fread( &( m_pppcInputPel[1][0][0] ), sizeof(Pel), m_uiWidth * m_uiHeight / 4, m_pFile );
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if( bytes_read != ( m_uiWidth * m_uiHeight / 4 ) )
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{
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m_iErrorStatus = READING;
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qDebug() << " Reading error !!!" << endl;
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return;
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}
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bytes_read = fread( &( m_pppcInputPel[2][0][0] ), sizeof(Pel), m_uiWidth * m_uiHeight / 4, m_pFile );
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if( bytes_read != ( m_uiWidth * m_uiHeight / 4 ) )
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{
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m_iErrorStatus = READING;
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qDebug() << " Reading error !!!" << endl;
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return;
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}
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YUV420toRGB();
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return;
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}
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QImage InputStream::getFrameQImage()
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{
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// Create QImage
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QImage img( m_uiWidth, m_uiHeight, QImage::Format_RGB888 );
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UInt64 frame_bytes = m_uiWidth * m_uiHeight;
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Pel pelR, pelG, pelB;
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Pel* bufferRGB = &( m_pppcRGBPel[0][0][0] );
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if( sizeof(Pel) == sizeof(unsigned char) )
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{
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for( Int y = 0; y < m_uiHeight; y++ )
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{
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for( Int x = 0; x < m_uiWidth; x++ )
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{
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img.setPixel( x, y, qRgb( m_pppcRGBPel[0][y][x], m_pppcRGBPel[1][y][x], m_pppcRGBPel[2][y][x] ) );
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//img.setPixel( x, y, qRgb( 0, 0, 255 ) );
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}
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}
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}
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else
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{
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Q_ASSERT( 0 );
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}
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return img;
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}
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Void InputStream::seekInput( Int new_frame_num )
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{
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UInt64 frame_bytes_input = m_uiWidth * m_uiHeight * 1.5;
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UInt64 nbytes_seek = frame_bytes_input * new_frame_num;
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fseek( m_pFile, nbytes_seek, SEEK_SET );
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m_uiCurrFrameNum = new_frame_num;
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}
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Bool InputStream::checkErrors( Int error_type )
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{
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if( m_iErrorStatus == error_type )
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{
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m_iErrorStatus = NO_ERROR;
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return true;
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}
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return false;
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}
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} // NAMESPACE
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