本文整理汇总了C++中ExifData::begin方法的典型用法代码示例。如果您正苦于以下问题：C++ ExifData::begin方法的具体用法？C++ ExifData::begin怎么用？C++ ExifData::begin使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类ExifData的用法示例。
在下文中一共展示了ExifData::begin方法的5个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: exifPrint
void exifPrint(const ExifData& exifData)
{
ExifData::const_iterator i = exifData.begin();
for (; i != exifData.end(); ++i) {
std::cout << std::setw(44) << std::setfill(' ') << std::left
<< i->key() << " "
<< "0x" << std::setw(4) << std::setfill('0') << std::right
<< std::hex << i->tag() << " "
<< std::setw(9) << std::setfill(' ') << std::left
<< i->typeName() << " "
<< std::dec << std::setw(3)
<< std::setfill(' ') << std::right
<< i->count() << " "
<< std::dec << i->value()
<< "\n";
}
}示例2: encode
WriteMethod Cr2Parser::encode(
BasicIo& io,
const byte* pData,
uint32_t size,
ByteOrder byteOrder,
const ExifData& exifData,
const IptcData& iptcData,
const XmpData& xmpData
)
{
// Copy to be able to modify the Exif data
ExifData ed = exifData;
// Delete IFDs which do not occur in TIFF images
static const IfdId filteredIfds[] = {
panaRawId
};
for (unsigned int i = 0; i < EXV_COUNTOF(filteredIfds); ++i) {
#ifdef DEBUG
std::cerr << "Warning: Exif IFD " << filteredIfds[i] << " not encoded\n";
#endif
ed.erase(std::remove_if(ed.begin(),
ed.end(),
FindExifdatum(filteredIfds[i])),
ed.end());
}
std::auto_ptr<TiffHeaderBase> header(new Cr2Header(byteOrder));
OffsetWriter offsetWriter;
offsetWriter.setOrigin(OffsetWriter::cr2RawIfdOffset, Cr2Header::offset2addr(), byteOrder);
return TiffParserWorker::encode(io,
pData,
size,
ed,
iptcData,
xmpData,
Tag::root,
TiffMapping::findEncoder,
header.get(),
&offsetWriter);
}示例3: print
void print(const ExifData& exifData)
{
if (exifData.empty()) {
std::string error("No Exif data found in the file");
throw Exiv2::Error(1, error);
}
Exiv2::ExifData::const_iterator end = exifData.end();
for (Exiv2::ExifData::const_iterator i = exifData.begin(); i != end; ++i) {
std::cout << std::setw(44) << std::setfill(' ') << std::left
<< i->key() << " "
<< "0x" << std::setw(4) << std::setfill('0') << std::right
<< std::hex << i->tag() << " "
<< std::setw(9) << std::setfill(' ') << std::left
<< i->typeName() << " "
<< std::dec << std::setw(3)
<< std::setfill(' ') << std::right
<< i->count() << " "
<< std::dec << i->value()
<< "\n";
}
}示例4: exiv2_dump_tags
void exiv2_dump_tags(const ExifData& exif)
{
cout << "exiv2_dump_tags: " << endl;
Exiv2::ExifData::const_iterator end = exif.end();
for (Exiv2::ExifData::const_iterator i = exif.begin(); i != end; ++i)
{
std::cout << std::setw(44) << std::setfill(' ') << std::left
<< i->key() << " "
<< "0x" << std::setw(4) << std::setfill('0') << std::right
<< std::hex << i->tag() << " "
<< std::setw(9) << std::setfill(' ') << std::left
<< i->typeName() << " "
<< std::dec << std::setw(3)
<< std::setfill(' ') << std::right
<< i->count() << " "
<< std::dec << i->value()
<< "\n";
}
}示例5: encode
//.........这里部分代码省略.........
{ pttIfd, "NikonPreview" },
{ pttLen, "Exif.Olympus.ThumbnailLength" },
{ pttTag, "Exif.Olympus.ThumbnailOffset" },
{ pttLen, "Exif.Olympus.ThumbnailImage" },
{ pttLen, "Exif.Olympus.Thumbnail" },
{ pttLen, "Exif.Olympus2.ThumbnailLength" },
{ pttTag, "Exif.Olympus2.ThumbnailOffset" },
{ pttLen, "Exif.Olympus2.ThumbnailImage" },
{ pttLen, "Exif.Olympus2.Thumbnail" },
{ pttLen, "Exif.OlympusCs.PreviewImageLength" },
{ pttTag, "Exif.OlympusCs.PreviewImageStart" },
{ pttTag, "Exif.OlympusCs.PreviewImageValid" },
{ pttLen, "Exif.Pentax.PreviewLength" },
{ pttTag, "Exif.Pentax.PreviewOffset" },
{ pttTag, "Exif.Pentax.PreviewResolution" },
{ pttLen, "Exif.PentaxDng.PreviewLength" },
{ pttTag, "Exif.PentaxDng.PreviewOffset" },
{ pttTag, "Exif.PentaxDng.PreviewResolution" },
{ pttLen, "Exif.SamsungPreview.JPEGInterchangeFormatLength" },
{ pttIfd, "SamsungPreview" },
{ pttLen, "Exif.Thumbnail.StripByteCounts" },
{ pttIfd, "Thumbnail" },
{ pttLen, "Exif.Thumbnail.JPEGInterchangeFormatLength" },
{ pttIfd, "Thumbnail" }
};
bool delTags = false;
ExifData::iterator pos;
for (unsigned int i = 0; i < EXV_COUNTOF(filteredPvTags); ++i) {
switch (filteredPvTags[i].ptt_) {
case pttLen:
delTags = false;
pos = ed.findKey(ExifKey(filteredPvTags[i].key_));
if (pos != ed.end() && sumToLong(*pos) > 32768) {
delTags = true;
#ifndef SUPPRESS_WARNINGS
EXV_WARNING << "Exif tag " << pos->key() << " not encoded\n";
#endif
ed.erase(pos);
}
break;
case pttTag:
if (delTags) {
pos = ed.findKey(ExifKey(filteredPvTags[i].key_));
if (pos != ed.end()) {
#ifndef SUPPRESS_WARNINGS
EXV_WARNING << "Exif tag " << pos->key() << " not encoded\n";
#endif
ed.erase(pos);
}
}
break;
case pttIfd:
if (delTags) {
#ifndef SUPPRESS_WARNINGS
EXV_WARNING << "Exif IFD " << filteredPvTags[i].key_ << " not encoded\n";
#endif
eraseIfd(ed, Internal::groupId(filteredPvTags[i].key_));
}
break;
}
}
// Delete unknown tags larger than 4kB and known tags larger than 40kB.
for (ExifData::iterator pos = ed.begin(); pos != ed.end(); ) {
if ( (pos->size() > 4096 && pos->tagName().substr(0, 2) == "0x")
|| pos->size() > 40960) {
#ifndef SUPPRESS_WARNINGS
EXV_WARNING << "Exif tag " << pos->key() << " not encoded\n";
#endif
pos = ed.erase(pos);
}
else {
++pos;
}
}
// Encode the remaining Exif tags again, don't care if it fits this time
MemIo mio2;
wm = TiffParserWorker::encode(mio2,
pData,
size,
ed,
emptyIptc,
emptyXmp,
Tag::root,
TiffMapping::findEncoder,
header.get(),
0);
append(blob, mio2.mmap(), mio2.size());
#ifdef DEBUG
if (wm == wmIntrusive) {
std::cerr << "SIZE OF EXIF DATA IS " << std::dec << mio2.size() << " BYTES\n";
}
else {
std::cerr << "SIZE DOESN'T MATTER, NON-INTRUSIVE WRITING USED\n";
}
#endif
return wm;
} // ExifParser::encode