128 lines
3.9 KiB
C++
128 lines
3.9 KiB
C++
/* This file is a part of Calyp project
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* Copyright (C) 2014-2021 by Joao Carreira (jfmcarreira@gmail.com)
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* Luis Lucas (luisfrlucas@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 <filesystem>
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#include "CalypFrame.h"
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std::vector<CalypStreamFormat> StreamHandlerRaw::supportedReadFormats()
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{
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INI_REGIST_CALYP_SUPPORTED_FMT;
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REGIST_CALYP_SUPPORTED_FMT( &StreamHandlerRaw::Create, "Raw YUV Video", "yuv" );
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REGIST_CALYP_SUPPORTED_FMT( &StreamHandlerRaw::Create, "Raw Gray Video", "gray" );
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REGIST_CALYP_SUPPORTED_FMT( &StreamHandlerRaw::Create, "Raw RGB Video", "rgb" );
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REGIST_CALYP_SUPPORTED_FMT( &StreamHandlerRaw::Create, "Raw Video", "raw" );
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END_REGIST_CALYP_SUPPORTED_FMT;
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}
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std::vector<CalypStreamFormat> StreamHandlerRaw::supportedWriteFormats()
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{
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INI_REGIST_CALYP_SUPPORTED_FMT;
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REGIST_CALYP_SUPPORTED_FMT( &StreamHandlerRaw::Create, "Raw Video", "yuv" );
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END_REGIST_CALYP_SUPPORTED_FMT;
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}
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StreamHandlerRaw::StreamHandlerRaw() : CalypStreamHandlerIf{ true }
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{
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m_pchHandlerName = "RawVideo";
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}
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bool StreamHandlerRaw::openHandler( std::string strFilename, bool bInput )
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{
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m_bIsInput = bInput;
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m_pFile = nullptr;
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m_pFile = fopen( strFilename.c_str(), bInput ? "rb" : "wb" );
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if( m_pFile == nullptr )
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{
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return false;
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}
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calculateFrameNumber();
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std::string fileExtension = std::filesystem::path{ strFilename }.extension().string();
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fileExtension.erase( fileExtension.begin() );
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m_strFormatName = clpUppercase( fileExtension );
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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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m_pFile = nullptr;
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}
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bool StreamHandlerRaw::configureBuffer( const CalypFrame& pcFrame )
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{
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m_pStreamBuffer.resize( pcFrame.getBytesPerFrame() );
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return true;
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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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unsigned long long 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( std::uint64_t 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( CalypFrame& pcFrame )
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{
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if( !m_pFile || m_pStreamBuffer.empty() || m_uiNBytesPerFrame == 0 )
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return false;
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unsigned long long int processed_bytes =
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fread( m_pStreamBuffer.data(), sizeof( ClpByte ), 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( const CalypFrame& pcFrame )
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{
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pcFrame.frameToBuffer( m_pStreamBuffer, m_iEndianness );
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unsigned long long int processed_bytes =
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fwrite( m_pStreamBuffer.data(), sizeof( ClpByte ), 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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