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@ -20,14 +20,14 @@
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*/
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/*
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File: exif.cpp
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Version: $Name: $ $Revision: 1.64 $
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Version: $Name: $ $Revision: 1.65 $
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Author(s): Andreas Huggel (ahu) <ahuggel@gmx.net>
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History: 26-Jan-04, ahu: created
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11-Feb-04, ahu: isolated as a component
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*/
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// *****************************************************************************
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#include "rcsid.hpp"
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EXIV2_RCSID("@(#) $Name: $ $Revision: 1.64 $ $RCSfile: exif.cpp,v $");
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EXIV2_RCSID("@(#) $Name: $ $Revision: 1.65 $ $RCSfile: exif.cpp,v $");
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// Define DEBUG_MAKERNOTE to output debug information to std::cerr
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#undef DEBUG_MAKERNOTE
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@ -494,7 +494,7 @@ namespace Exiv2 {
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}
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ExifData::ExifData()
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: pThumbnail_(0), pMakerNote_(0), ifd0_(ifd0Id, 0, false),
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: pThumbnail_(0), ifd0_(ifd0Id, 0, false),
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exifIfd_(exifIfdId, 0, false), iopIfd_(iopIfdId, 0, false),
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gpsIfd_(gpsIfdId, 0, false), ifd1_(ifd1Id, 0, false),
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size_(0), pData_(0), compatible_(true)
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@ -503,7 +503,6 @@ namespace Exiv2 {
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ExifData::~ExifData()
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{
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delete pMakerNote_;
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delete pThumbnail_;
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delete[] pData_;
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}
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@ -559,33 +558,32 @@ namespace Exiv2 {
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MakerNoteFactory& mnf = MakerNoteFactory::instance();
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// Todo: The conversion to string assumes that there is a \0 at the end
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// Todo: How to avoid the cast (is that a MSVC thing?)
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pMakerNote_ = mnf.create(reinterpret_cast<const char*>(make->data()),
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reinterpret_cast<const char*>(model->data()),
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false,
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pos->data(),
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pos->size(),
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byteOrder(),
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exifIfd_.offset() + pos->offset());
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makerNote_ = mnf.create(reinterpret_cast<const char*>(make->data()),
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reinterpret_cast<const char*>(model->data()),
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false,
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pos->data(),
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pos->size(),
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byteOrder(),
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exifIfd_.offset() + pos->offset());
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}
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// Read the MakerNote
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if (pMakerNote_) {
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rc = pMakerNote_->read(pos->data(),
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pos->size(),
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byteOrder(),
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exifIfd_.offset() + pos->offset());
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if (makerNote_.get() != 0) {
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rc = makerNote_->read(pos->data(),
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pos->size(),
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byteOrder(),
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exifIfd_.offset() + pos->offset());
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if (rc) {
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// Todo: How to handle debug output like this
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std::cerr << "Warning: Failed to read "
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<< pMakerNote_->ifdItem()
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<< makerNote_->ifdItem()
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<< " Makernote, rc = " << rc << "\n";
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delete pMakerNote_;
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pMakerNote_ = 0;
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makerNote_.reset();
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}
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}
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// If we successfully parsed the MakerNote, delete the raw MakerNote,
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// the parsed MakerNote is the primary MakerNote from now on
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if (pMakerNote_) {
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if (makerNote_.get() != 0) {
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exifIfd_.erase(pos);
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}
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// Find and read Interoperability IFD in ExifIFD
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@ -618,8 +616,8 @@ namespace Exiv2 {
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exifMetadata_.clear();
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add(ifd0_.begin(), ifd0_.end(), byteOrder());
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add(exifIfd_.begin(), exifIfd_.end(), byteOrder());
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if (pMakerNote_) {
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add(pMakerNote_->begin(), pMakerNote_->end(), pMakerNote_->byteOrder());
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if (makerNote_.get() != 0) {
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add(makerNote_->begin(), makerNote_->end(), makerNote_->byteOrder());
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}
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add(iopIfd_.begin(), iopIfd_.end(), byteOrder());
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add(gpsIfd_.begin(), gpsIfd_.end(), byteOrder());
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@ -699,17 +697,19 @@ namespace Exiv2 {
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// Build Exif IFD from metadata
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Ifd exifIfd(exifIfdId);
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addToIfd(exifIfd, begin(), end(), byteOrder());
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MakerNote* pMakerNote = 0;
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if (pMakerNote_) {
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MakerNote::AutoPtr makerNote;
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if (makerNote_.get() != 0) {
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// Build MakerNote from metadata
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pMakerNote = pMakerNote_->clone();
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addToMakerNote(pMakerNote, begin(), end(), pMakerNote_->byteOrder());
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makerNote = makerNote_->clone();
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addToMakerNote(makerNote.get(),
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begin(), end(),
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makerNote_->byteOrder());
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// Create a placeholder MakerNote entry of the correct size and
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// add it to the Exif IFD (because we don't know the offset yet)
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Entry e;
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e.setIfdId(exifIfd.ifdId());
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e.setTag(0x927c);
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DataBuf buf(pMakerNote->size());
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DataBuf buf(makerNote->size());
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memset(buf.pData_, 0x0, buf.size_);
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e.setValue(undefined, buf.size_, buf.pData_, buf.size_);
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exifIfd.erase(0x927c);
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@ -787,17 +787,15 @@ namespace Exiv2 {
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ifd0.copy(buf + ifd0Offset, byteOrder(), ifd0Offset);
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exifIfd.sortByTag();
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exifIfd.copy(buf + exifIfdOffset, byteOrder(), exifIfdOffset);
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if (pMakerNote) {
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if (makerNote.get() != 0) {
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// Copy the MakerNote over the placeholder data
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Entries::iterator mn = exifIfd.findTag(0x927c);
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// Do _not_ sort the makernote; vendors (at least Canon), don't seem
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// to bother about this TIFF standard requirement, so writing the
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// makernote as is might result in fewer deviations from the original
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pMakerNote->copy(buf + exifIfdOffset + mn->offset(),
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byteOrder(),
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exifIfdOffset + mn->offset());
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delete pMakerNote;
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pMakerNote = 0;
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makerNote->copy(buf + exifIfdOffset + mn->offset(),
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byteOrder(),
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exifIfdOffset + mn->offset());
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}
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iopIfd.sortByTag();
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iopIfd.copy(buf + iopIfdOffset, byteOrder(), iopIfdOffset);
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@ -878,13 +876,13 @@ namespace Exiv2 {
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void ExifData::add(const Exifdatum& exifdatum)
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{
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if (exifdatum.ifdId() == makerIfdId) {
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if ( pMakerNote_
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&& pMakerNote_->ifdItem() != exifdatum.groupName()) {
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if ( makerNote_.get() != 0
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&& makerNote_->ifdItem() != exifdatum.groupName()) {
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throw Error("Inconsistent MakerNote");
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}
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if (!pMakerNote_) {
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if (makerNote_.get() == 0) {
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MakerNoteFactory& mnf = MakerNoteFactory::instance();
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pMakerNote_ = mnf.create(exifdatum.groupName());
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makerNote_ = mnf.create(exifdatum.groupName());
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}
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}
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// allow duplicates
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@ -980,9 +978,9 @@ namespace Exiv2 {
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maxOffset = std::max(maxOffset, exifIfd_.offset());
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maxOffset = std::max(maxOffset, exifIfd_.dataOffset()
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+ exifIfd_.dataSize());
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if (pMakerNote_) {
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maxOffset = std::max(maxOffset, pMakerNote_->offset()
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+ pMakerNote_->size());
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if (makerNote_.get() != 0) {
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maxOffset = std::max(maxOffset, makerNote_->offset()
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+ makerNote_->size());
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}
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maxOffset = std::max(maxOffset, iopIfd_.offset());
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maxOffset = std::max(maxOffset, iopIfd_.dataOffset()
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@ -1030,10 +1028,10 @@ namespace Exiv2 {
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bool compatible = true;
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compatible &= updateRange(ifd0_.begin(), ifd0_.end(), byteOrder());
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compatible &= updateRange(exifIfd_.begin(), exifIfd_.end(), byteOrder());
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if (pMakerNote_) {
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compatible &= updateRange(pMakerNote_->begin(),
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pMakerNote_->end(),
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pMakerNote_->byteOrder());
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if (makerNote_.get() != 0) {
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compatible &= updateRange(makerNote_->begin(),
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makerNote_->end(),
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makerNote_->byteOrder());
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}
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compatible &= updateRange(iopIfd_.begin(), iopIfd_.end(), byteOrder());
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compatible &= updateRange(gpsIfd_.begin(), gpsIfd_.end(), byteOrder());
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@ -1105,9 +1103,9 @@ namespace Exiv2 {
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Entries::const_iterator entry;
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std::pair<bool, Entries::const_iterator> rc(false, entry);
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if (ifdId == makerIfdId && pMakerNote_) {
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entry = pMakerNote_->findIdx(idx);
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if (entry != pMakerNote_->end()) {
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if (ifdId == makerIfdId && makerNote_.get() != 0) {
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entry = makerNote_->findIdx(idx);
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if (entry != makerNote_->end()) {
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rc.first = true;
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rc.second = entry;
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}
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Andreas Huggel
21 years ago