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#922. Work In Progress. Adding support for -pX and -pS for tiff files.

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This commit is contained in:
Robin Mills 2015-04-24 13:28:28 +00:00
parent 13388f3655
commit 3926d3cb93
2 changed files with 271 additions and 6 deletions
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5
include/exiv2/tiffimage.hpp
View File

@ -84,6 +84,7 @@ namespace Exiv2 {
//! @name Manipulators
//@{
void printStructure(std::ostream& out,Exiv2::printStructureOption_e option);
void readMetadata();
void writeMetadata();
/*!
@ -119,8 +120,8 @@ namespace Exiv2 {
// DATA
mutable std::string primaryGroup_; //!< The primary group
mutable std::string mimeType_; //!< The MIME type
mutable int pixelWidth_; //!< Width of the primary image in pixels
mutable int pixelHeight_; //!< Height of the primary image in pixels
mutable int pixelWidth_; //!< Width of the primary image in pixels
mutable int pixelHeight_; //!< Height of the primary image in pixels
}; // class TiffImage

272
src/tiffimage.cpp
View File

@ -302,6 +302,270 @@ namespace Exiv2 {
return rc;
}
// http://en.wikipedia.org/wiki/Endianness
static uint32_t byteSwap(uint32_t* pValue,bool b)
{
uint32_t result = 0;
uint32_t value = *pValue ;
result |= (value & 0x000000FF) << 24;
result |= (value & 0x0000FF00) << 8;
result |= (value & 0x00FF0000) >> 8;
result |= (value & 0xFF000000) >> 24;
return b ? result : value;
}
static uint16_t byteSwap(uint16_t* pValue,bool b)
{
uint16_t result = 0;
uint16_t value = *pValue ;
result |= (value & 0x00FF) << 8;
result |= (value & 0xFF00) >> 8;
return b ? result : value;
}
static uint16_t byteSwap2(DataBuf& buf,size_t offset,bool bSwap)
{
return byteSwap((uint16_t*)&buf.pData_[offset],bSwap);
}
static uint32_t byteSwap4(DataBuf& buf,size_t offset,bool bSwap)
{
return byteSwap((uint32_t*)&buf.pData_[offset],bSwap);
}
// http://stackoverflow.com/questions/2342162/stdstring-formatting-like-sprintf
static std::string stringFormat(const std::string fmt_str, ...) {
int n = ((int)fmt_str.size()) * 2; /* Reserve two times as much as the length of the fmt_str */
std::unique_ptr<char[]> formatted;
std::string str;
va_list ap;
bool ok = true;
while(ok) {
formatted.reset(new char[n]); /* Wrap the plain char array into the unique_ptr */
strcpy(&formatted[0], fmt_str.c_str());
va_start(ap, fmt_str);
int final = vsnprintf(&formatted[0], n, fmt_str.c_str(), ap);
va_end(ap);
ok = final < 0 || final >= n;
if ( ok ) n += abs(final - n + 1);
}
return std::string(formatted.get());
}
std::string stringValue(byte* buff,size_t size)
{
std::string result = "";
size_t start = 0 ;
if (size > 32) size = 32 ;
while (start < size ) {
int c = (int) buff[start++] ;
if (c < ' ' || c > 127) c = '.' ;
result += (char) c ;
}
return result;
}
std::string rationalValue(byte* buff,size_t size)
{
std::string result = "";
size_t start = 0 ;
if (size > 32) size = 32 ;
while (start < size ) {
int c = (int) buff[start++] ;
if (c < ' ' || c > 127) c = '.' ;
result += (char) c ;
}
return result;
}
static const char* typeName(uint16_t tag)
{
//! List of TIFF image tags
const char* result = NULL;
switch (tag ) {
case 1 : result = "BYTE" ; break;
case 2 : result = "ASCII" ; break;
case 3 : result = "SHORT" ; break;
case 4 : result = "LONG" ; break;
case 5 : result = "RATIONAL" ; break;
case 6 : result = "SBYTE" ; break;
case 7 : result = "UNDEFINED" ; break;
case 8 : result = "SSHORT" ; break;
case 9 : result = "SLONG" ; break;
case 10 : result = "SRATIONAL" ; break;
case 11 : result = "FLOAT" ; break;
case 12 : result = "DOUBLE" ; break;
default : result = "unknown" ; break;
}
return result;
}
static const char* tagName(uint16_t tag)
{
const char* result = NULL;
switch (tag ) {
case 0x00fe : result = "NewSubfileType" ; break;
case 0x0100 : result = "Width" ; break;
case 0x0101 : result = "Length" ; break;
case 0x0102 : result = "BitsPerSample" ; break;
case 0x0103 : result = "Compression" ; break;
case 0x0106 : result = "PhotometricInterp" ; break;
case 0x0111 : result = "StripOffsets" ; break;
case 0x0112 : result = "Orientation" ; break;
case 0x0115 : result = "SamplesPerPixel" ; break;
case 0x0116 : result = "RowsPerStrip" ; break;
case 0x0117 : result = "StripByteCounts" ; break;
case 0x011a : result = "XResolution" ; break;
case 0x011b : result = "YResolution" ; break;
case 0x011c : result = "PlanarConfig" ; break;
case 0x0128 : result = "ResolutionUnit" ; break;
case 0x0131 : result = "Software" ; break;
case 0x0132 : result = "DateTime" ; break;
case 0x013d : result = "Predictor" ; break;
case 0x0153 : result = "SampleFormat" ; break;
case 0x0122 : result = "GrayResponseUnit" ; break;
case 0x0123 : result = "GrayResponseCurve" ; break;
case 0x0124 : result = "T4Options" ; break;
case 0x0125 : result = "T6Options" ; break;
case 0x0129 : result = "PageNumber" ; break;
case 0x012d : result = "TransferFunction" ; break;
case 0x013e : result = "WhitePoint" ; break;
case 0x013f : result = "PrimaryChromas" ; break;
case 0x0140 : result = "ColorMap" ; break;
case 0x0141 : result = "HalftoneHints" ; break;
case 0x0142 : result = "TileWidth" ; break;
case 0x0143 : result = "TileLength" ; break;
case 0x0144 : result = "TileOffsets" ; break;
case 0x0145 : result = "TileByteCounts" ; break;
case 0x014c : result = "InkSet" ; break;
case 0x014d : result = "InkNames" ; break;
case 0x014e : result = "NumberOfInks" ; break;
case 0x0150 : result = "DotRange" ; break;
case 0x0151 : result = "TargetPrinter" ; break;
case 0x0152 : result = "ExtraSamples" ; break;
case 0x0154 : result = "SMinSampleValue" ; break;
case 0x0155 : result = "SMaxSampleValue" ; break;
case 0x0156 : result = "TransferRange" ; break;
case 0x0157 : result = "ClipPath" ; break;
case 0x0158 : result = "XClipPathUnits" ; break;
case 0x0159 : result = "YClipPathUnits" ; break;
case 0x015a : result = "Indexed" ; break;
case 0x015b : result = "JPEGTables" ; break;
case 0x0200 : result = "JPEGProc" ; break;
case 0x0201 : result = "JPEGInterchangeFormat" ; break;
case 0x0202 : result = "JPEGInterchangeFmtLen" ; break;
case 0x0203 : result = "JPEGRestartInterval" ; break;
case 0x0205 : result = "JPEGLosslessPredictors" ; break;
case 0x0206 : result = "JPEGPointTransforms" ; break;
case 0x0207 : result = "JPEGQTables" ; break;
case 0x0208 : result = "JPEGDCTables" ; break;
case 0x0209 : result = "JPEGACTables" ; break;
case 0x0211 : result = "YCbCrCoefficients" ; break;
case 0x0212 : result = "YCbCrSubSampling" ; break;
case 0x0213 : result = "YCbCrPositioning" ; break;
case 0x0214 : result = "ReferenceBlackWhite" ; break;
case 0x02bc : result = "XMP" ; break;
case 0x828d : result = "CFARepeatPatternDim" ; break;
case 0x828e : result = "CFAPattern" ; break;
case 0x8769 : result = "Exif Offset" ; break;
case 0x8773 : result = "InterColorProfile" ; break;
case 0x8824 : result = "SpectralSensitivity" ; break;
case 0x8828 : result = "OECF" ; break;
case 0x9102 : result = "CompressedBitsPerPixel" ; break;
case 0x9217 : result = "SensingMethod" ; break;
default : result = "unknown" ; break;
}
return result;
}
static bool isStringType(uint16_t type)
{
return type == Exiv2::asciiString
|| type == Exiv2::unsignedByte
|| type == Exiv2::signedByte
;
}
void TiffImage::printStructure(std::ostream& out,Exiv2::printStructureOption_e option)
{
if (io_->open() != 0) throw Error(9, io_->path(), strError());
// Ensure that this is the correct image type
if (!isTiffType(*io_, false)) {
if (io_->error() || io_->eof()) throw Error(14);
throw Error(15);
}
if ( option == kpsBasic || option == kpsXMP ) {
io_->seek(0,BasicIo::beg);
// buffer
const long bufSize = 32;
DataBuf buf(bufSize);
// read header (we already know for certain that we have a Tiff file)
io_->read(buf.pData_, 8);
#if __LITTLE_ENDIAN__
bool bSwap = buf.pData_[0] == 'M';
#else
bool bSwap = buf.pData_[0] == 'I';
#endif
if ( option == kpsBasic ) {
// out << string_format("count = %u\n",count);
out << "STRUCTURE OF TIFF FILE:\n";
out << " tag | type | count | offset | value\n";
}
uint32_t offset = byteSwap4(buf,4,bSwap);
while ( offset ) {
// if ( option == kpsBasic ) out << stringFormat("bSwap, offset = %d %u\n",bSwap,offset);
// Read top of dictionary
io_->seek(offset,BasicIo::beg);
io_->read(buf.pData_, 2);
uint16_t count = byteSwap2(buf,0,bSwap);
// Read the dictionary
for ( int i = 0 ; i < count ; i ++ ) {
io_->read(buf.pData_, 12);
uint16_t Tag = byteSwap2(buf,0,bSwap);
uint16_t Type = byteSwap2(buf,2,bSwap);
uint32_t Count = byteSwap4(buf,4,bSwap);
uint32_t Offset = byteSwap4(buf,8,bSwap);
if ( option == kpsBasic ) {
out << stringFormat("%#06x %-20s |%10s |%9u |%9u | ",Tag,tagName(Tag),typeName(Type),Count,Offset);
if ( Count > 4 && isStringType(Type) ) { // 4 byte or ascii
size_t restore = io_->tell();
io_->seek(Offset,BasicIo::beg);
size_t size = Count > bufSize ? bufSize : Count;
io_->read(buf.pData_,size );
io_->seek(restore,BasicIo::beg);
out << stringValue(buf.pData_,size);
} else if ( Count == 1 && Type == Exiv2::unsignedShort ) {
out << byteSwap2(buf,8,bSwap);
} else if ( Count == 1 && Type == Exiv2::unsignedLong ) {
out << byteSwap2(buf,8,bSwap);
}
out << std::endl;
}
if ( Tag == 700 ) {
const long bSize = (long) Count;
DataBuf buf(bSize+1);
size_t restore = io_->tell();
io_->seek(Offset,BasicIo::beg);
io_->read(buf.pData_,bSize);
io_->seek(restore,BasicIo::beg);
buf.pData_[bSize]=0;
if ( option == kpsXMP ) out << (char*) &buf.pData_[0];
}
}
io_->read(buf.pData_, 4);
offset = byteSwap4(buf,0,bSwap);
} // while offset
}
}
} // namespace Exiv2
// Shortcuts for the newTiffBinaryArray templates.
@ -535,7 +799,7 @@ namespace Exiv2 {
{ 26, ttUnsignedShort, 1 }, // AFAreaHeight
{ 28, ttUnsignedShort, 1 }, // ContrastDetectAFInFocus
};
//! Nikon AF Fine Tune binary array - configuration
extern const ArrayCfg nikonAFTCfg = {
nikonAFTId, // Group for the elements
@ -1582,13 +1846,13 @@ namespace Exiv2 {
// Nikon3 auto focus
{ Tag::all, nikonAfId, newTiffBinaryElement },
// Nikon3 auto focus 2
{ Tag::all, nikonAf2Id, newTiffBinaryElement },
// Nikon3 AF Fine Tune
{ Tag::all, nikonAFTId, newTiffBinaryElement },
// Nikon3 file info
{ Tag::all, nikonFiId, newTiffBinaryElement },