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/*
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* libopenraw - orfcontainer.cpp
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*
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* Copyright (C) 2006-2017 Hubert Figuière
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*
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* This library is free software: you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public License
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* as published by the Free Software Foundation, either version 3 of
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* the License, or (at your option) any later version.
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*
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* This library 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 GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see
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* <http://www.gnu.org/licenses/>.
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*/
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#include <libopenraw/debug.h>
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#include "trace.hpp"
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#include "orfcontainer.hpp"
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using namespace Debug;
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namespace OpenRaw {
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namespace Internals {
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OrfContainer::OrfContainer(const IO::Stream::Ptr &_file, off_t _offset)
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: IfdFileContainer(_file, _offset), subtype_(0)
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{
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}
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OrfContainer::~OrfContainer()
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{
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}
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IfdFileContainer::EndianType OrfContainer::isMagicHeader(const char *p, int len)
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{
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if (len < 4) {
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// we need at least 4 bytes to check
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return ENDIAN_NULL;
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}
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if ((p[0] == 'I') && (p[1] == 'I')) {
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if ((p[2] == 'R') && ((p[3] == 'O') || (p[3] == 'S'))) {
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LOGDBG1("Identified EL ORF file. Subtype = %c\n", p[3]);
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subtype_ = p[3];
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return ENDIAN_LITTLE;
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}
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} else if ((p[0] == 'M') && (p[1] == 'M')) {
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if ((p[3] == 'R') && ((p[2] == 'O') || (p[2] == 'S'))) {
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LOGDBG1("Identified BE ORF file. Subtype = %c\n", p[2]);
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subtype_ = p[2];
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return ENDIAN_BIG;
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}
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}
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LOGERR("Unidentified ORF file\n");
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return ENDIAN_NULL;
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}
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}
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}
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