jfmcarreira
25a4e9765f
Fix problems in the histogram calculation Change handle of frame count in the stream handlers
119 lines
3.6 KiB
C++
119 lines
3.6 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 StreamHandlerRaw.cpp
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* \brief Interface for raw (yuv) streams
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*/
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#include "StreamHandlerRaw.h"
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#include <cstdio>
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#include "LibMemory.h"
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#include "PlaYUVerFrame.h"
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#include "PlaYUVerFramePixelFormats.h"
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std::vector<PlaYUVerSupportedFormat> StreamHandlerRaw::supportedReadFormats()
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{
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INI_REGIST_PLAYUVER_SUPPORTED_FMT;
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REGIST_PLAYUVER_SUPPORTED_FMT( &StreamHandlerRaw::Create, "Raw YUV Video", "yuv" );
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REGIST_PLAYUVER_SUPPORTED_FMT( &StreamHandlerRaw::Create, "Raw Gray Video", "gray" );
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REGIST_PLAYUVER_SUPPORTED_FMT( &StreamHandlerRaw::Create, "Raw RGB Video", "rgb" );
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END_REGIST_PLAYUVER_SUPPORTED_FMT;
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}
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std::vector<PlaYUVerSupportedFormat> StreamHandlerRaw::supportedWriteFormats()
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{
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INI_REGIST_PLAYUVER_SUPPORTED_FMT;
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REGIST_PLAYUVER_SUPPORTED_FMT( &StreamHandlerRaw::Create, "Raw Video", "yuv" );
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END_REGIST_PLAYUVER_SUPPORTED_FMT;
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}
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Bool StreamHandlerRaw::openHandler( String strFilename, Bool bInput )
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{
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m_bIsInput = bInput;
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m_pFile = NULL;
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m_pFile = fopen( strFilename.c_str(), bInput ? "rb" : "wb" );
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if( m_pFile == NULL )
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{
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return false;
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}
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calculateFrameNumber();
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m_strFormatName = "YUV";
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m_strCodecName = "Raw Video";
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return true;
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}
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Void StreamHandlerRaw::closeHandler()
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{
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if( m_pFile )
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fclose( m_pFile );
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if( m_pStreamBuffer )
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freeMem1D( m_pStreamBuffer );
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}
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Bool StreamHandlerRaw::configureBuffer( PlaYUVerFrame* pcFrame )
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{
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return getMem1D<Byte>( &m_pStreamBuffer, pcFrame->getBytesPerFrame() );
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}
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Void StreamHandlerRaw::calculateFrameNumber()
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{
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if( m_pFile && m_uiNBytesPerFrame > 0 )
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{
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fseek( m_pFile, 0, SEEK_END );
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UInt64 fileSize = ftell( m_pFile );
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fseek( m_pFile, 0, SEEK_SET );
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m_uiTotalNumberFrames = fileSize / m_uiNBytesPerFrame;
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}
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}
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Bool StreamHandlerRaw::seek( UInt64 iFrameNum )
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{
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if( m_bIsInput && m_pFile )
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{
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fseek( m_pFile, iFrameNum >= 0 ? iFrameNum * m_uiNBytesPerFrame : 0, SEEK_SET );
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m_uiCurrFrameFileIdx = iFrameNum;
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return true;
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}
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return false;
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}
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Bool StreamHandlerRaw::read( PlaYUVerFrame* pcFrame )
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{
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if( !m_pFile || !m_pStreamBuffer || m_uiNBytesPerFrame == 0 )
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return false;
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UInt64 processed_bytes = fread( m_pStreamBuffer, sizeof( Byte ), m_uiNBytesPerFrame, m_pFile );
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if( processed_bytes != m_uiNBytesPerFrame )
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return false;
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m_uiCurrFrameFileIdx++;
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pcFrame->frameFromBuffer( m_pStreamBuffer, m_iEndianness );
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return true;
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}
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Bool StreamHandlerRaw::write( PlaYUVerFrame* pcFrame )
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{
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pcFrame->frameToBuffer( m_pStreamBuffer, m_iEndianness );
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UInt64 processed_bytes = fwrite( m_pStreamBuffer, sizeof( Byte ), m_uiNBytesPerFrame, m_pFile );
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if( processed_bytes != m_uiNBytesPerFrame )
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return false;
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return true;
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}
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