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Keep the profileName from readMetadata and use it in writeMetadata

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v0.27.3
Luis Díaz Más 6 years ago
parent e385599067
commit 704fc56d52
3 changed files with 25 additions and 22 deletions
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2
include/exiv2/pngimage.hpp
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@ -113,6 +113,8 @@ namespace Exiv2
void doWriteMetadata(BasicIo& oIo);
//@}
std::string profileName_;
}; // class PngImage
// *****************************************************************************

29
src/pngimage.cpp
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@ -462,16 +462,16 @@ namespace Exiv2 {
// The ICC profile name can vary from 1-79 characters.
uint32_t iccOffset = 0;
while (iccOffset < 80 && iccOffset < chunkLength) {
const byte* profileName = chunkData.pData_ + iccOffset;
++iccOffset;
if (*profileName == 0x00)
if (chunkData.pData_[iccOffset++] == 0x00) {
break;
}
}
profileName_ = std::string(reinterpret_cast<char *>(chunkData.pData_), iccOffset-1);
++iccOffset; // +1 = 'compressed' flag
zlibToDataBuf(chunkData.pData_ + iccOffset, chunkLength - iccOffset, iccProfile_);
#ifdef DEBUG
std::cout << "Exiv2::PngImage::readMetadata: profile name size: " << iccOffset - 2 << std::endl;
std::cout << "Exiv2::PngImage::readMetadata: profile name: " << profileName_ << std::endl;
std::cout << "Exiv2::PngImage::readMetadata: iccProfile.size_ (uncompressed) : "
<< iccProfile_.size_ << std::endl;
#endif
@ -619,25 +619,26 @@ namespace Exiv2 {
DataBuf compressed;
if ( zlibToCompressed(iccProfile_.pData_,iccProfile_.size_,compressed) ) {
const byte* header = (const byte*) "ICC PROFILE\0\0" ; // \0 = default compression
const byte* nullComp = (const byte*) "\0\0";
const byte* type = (const byte*) "iCCP";
uint32_t headerLen = 13 ;
uint32_t typeLen = 4;
uint32_t chunkLength = headerLen + compressed.size_ ;
const long nameLength = profileName_.size();
const uint32_t chunkLength = profileName_.size() + 2 + compressed.size_ ;
byte length[4];
ul2Data (length,chunkLength,bigEndian);
// calculate CRC
uLong tmp = crc32(0L, Z_NULL, 0);
tmp = crc32(tmp, (const Bytef*)type ,typeLen);
tmp = crc32(tmp, (const Bytef*)header ,headerLen);
tmp = crc32(tmp, (const Bytef*)type, 4);
tmp = crc32(tmp, (const Bytef*)profileName_.data(), nameLength);
tmp = crc32(tmp, (const Bytef*)nullComp, 2);
tmp = crc32(tmp, (const Bytef*)compressed.pData_,compressed.size_);
byte crc[4];
ul2Data(crc, tmp, bigEndian);
if( outIo.write(length,4) != 4
|| outIo.write(type ,typeLen) != (long) typeLen
|| outIo.write(header,headerLen) != (long) headerLen
if( outIo.write(length, 4) != 4
|| outIo.write(type, 4) != 4
|| outIo.write(reinterpret_cast<const byte*>(profileName_.data()), nameLength) != nameLength
|| outIo.write(nullComp,2) != 2
|| outIo.write (compressed.pData_,compressed.size_) != compressed.size_
|| outIo.write(crc,4) != 4
){
@ -645,7 +646,7 @@ namespace Exiv2 {
}
#ifdef DEBUG
std::cout << "Exiv2::PngImage::doWriteMetadata: build iCCP"
<< " chunk (length: " << compressed.size_ + headerLen << ")" << std::endl;
<< " chunk (length: " << compressed.size_ + chunkLength << ")" << std::endl;
#endif
}
}

16
test/data/icc-test.out
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@ -310,7 +310,7 @@ STRUCTURE OF PNG FILE: ReaganLargePng.png
33 | iTXt | 31 | Description.....x.KLJNIMK..... | 0xc1fefec8
76 | zTXt | 8461 | Raw profile type exif..x...iv. | 0x91fbf6a0
8549 | zTXt | 636 | Raw profile type iptc..x..TKn. | 0x4e5178d3
9197 | iCCP | 1159185 | ICC PROFILE..x...uP.[..9@.HB.D | 0x92791a05
9197 | iCCP | 1159185 | ICC profile..x...uP.[..9@.HB.D | 0xd3dbe519
1168394 | iTXt | 7156 | XML:com.adobe.xmp.....<?xpacke | 0x8d6d70ba
1175562 | gAMA | 4 | .... | 0x0bfc6105
1175578 | bKGD | 6 | ...... | 0xa0bda793
@ -329,7 +329,7 @@ STRUCTURE OF PNG FILE: ReaganLargePng.png
8 | IHDR | 13 | ............ | 0x8cf910c3
33 | zTXt | 8461 | Raw profile type exif..x...iv. | 0x91fbf6a0
8506 | zTXt | 636 | Raw profile type iptc..x..TKn. | 0x4e5178d3
9154 | iCCP | 1159185 | ICC PROFILE..x...uP.[..9@.HB.D | 0x92791a05
9154 | iCCP | 1159185 | ICC profile..x...uP.[..9@.HB.D | 0xd3dbe519
1168351 | iTXt | 7156 | XML:com.adobe.xmp.....<?xpacke | 0x8d6d70ba
1175519 | gAMA | 4 | .... | 0x0bfc6105
1175535 | bKGD | 6 | ...... | 0xa0bda793
@ -347,7 +347,7 @@ STRUCTURE OF PNG FILE: ReaganLargePng.png
8 | IHDR | 13 | ............ | 0x8cf910c3
33 | zTXt | 8461 | Raw profile type exif..x...iv. | 0x91fbf6a0
8506 | zTXt | 636 | Raw profile type iptc..x..TKn. | 0x4e5178d3
9154 | iCCP | 1159185 | ICC PROFILE..x...uP.[..9@.HB.D | 0x92791a05
9154 | iCCP | 1159185 | ICC profile..x...uP.[..9@.HB.D | 0xd3dbe519
1168351 | iTXt | 7156 | XML:com.adobe.xmp.....<?xpacke | 0x8d6d70ba
1175519 | gAMA | 4 | .... | 0x0bfc6105
1175535 | bKGD | 6 | ...... | 0xa0bda793
@ -366,7 +366,7 @@ STRUCTURE OF PNG FILE: ReaganLargePng.png
33 | iTXt | 31 | Description.....x.KLJNIMK..... | 0xc1fefec8
76 | zTXt | 8461 | Raw profile type exif..x...iv. | 0x91fbf6a0
8549 | zTXt | 636 | Raw profile type iptc..x..TKn. | 0x4e5178d3
9197 | iCCP | 1159185 | ICC PROFILE..x...uP.[..9@.HB.D | 0x92791a05
9197 | iCCP | 1159185 | ICC profile..x...uP.[..9@.HB.D | 0xd3dbe519
1168394 | iTXt | 7156 | XML:com.adobe.xmp.....<?xpacke | 0x8d6d70ba
1175562 | gAMA | 4 | .... | 0x0bfc6105
1175578 | bKGD | 6 | ...... | 0xa0bda793
@ -385,7 +385,7 @@ STRUCTURE OF PNG FILE: ReaganLargePng.png
8 | IHDR | 13 | ............ | 0x8cf910c3
33 | zTXt | 8461 | Raw profile type exif..x...iv. | 0x91fbf6a0
8506 | zTXt | 636 | Raw profile type iptc..x..TKn. | 0x4e5178d3
9154 | iCCP | 1159185 | ICC PROFILE..x...uP.[..9@.HB.D | 0x92791a05
9154 | iCCP | 1159185 | ICC profile..x...uP.[..9@.HB.D | 0xd3dbe519
1168351 | iTXt | 7156 | XML:com.adobe.xmp.....<?xpacke | 0x8d6d70ba
1175519 | gAMA | 4 | .... | 0x0bfc6105
1175535 | bKGD | 6 | ...... | 0xa0bda793
@ -403,7 +403,7 @@ STRUCTURE OF PNG FILE: ReaganLargePng.png
8 | IHDR | 13 | ............ | 0x8cf910c3
33 | zTXt | 8461 | Raw profile type exif..x...iv. | 0x91fbf6a0
8506 | zTXt | 636 | Raw profile type iptc..x..TKn. | 0x4e5178d3
9154 | iCCP | 293 | ICC PROFILE..x.c``2ptqre.``..+ | 0x5c9e2b23
9154 | iCCP | 293 | ICC profile..x.c``2ptqre.``..+ | 0x7d41600b
9459 | iTXt | 7156 | XML:com.adobe.xmp.....<?xpacke | 0x8d6d70ba
16627 | gAMA | 4 | .... | 0x0bfc6105
16643 | bKGD | 6 | ...... | 0xa0bda793
@ -422,7 +422,7 @@ STRUCTURE OF PNG FILE: ReaganLargePng.png
33 | iTXt | 31 | Description.....x.KLJNIMK..... | 0xc1fefec8
76 | zTXt | 8461 | Raw profile type exif..x...iv. | 0x91fbf6a0
8549 | zTXt | 636 | Raw profile type iptc..x..TKn. | 0x4e5178d3
9197 | iCCP | 293 | ICC PROFILE..x.c``2ptqre.``..+ | 0x5c9e2b23
9197 | iCCP | 293 | ICC profile..x.c``2ptqre.``..+ | 0x7d41600b
9502 | iTXt | 7156 | XML:com.adobe.xmp.....<?xpacke | 0x8d6d70ba
16670 | gAMA | 4 | .... | 0x0bfc6105
16686 | bKGD | 6 | ...... | 0xa0bda793
@ -441,7 +441,7 @@ STRUCTURE OF PNG FILE: ReaganLargePng.png
8 | IHDR | 13 | ............ | 0x8cf910c3
33 | zTXt | 8461 | Raw profile type exif..x...iv. | 0x91fbf6a0
8506 | zTXt | 636 | Raw profile type iptc..x..TKn. | 0x4e5178d3
9154 | iCCP | 293 | ICC PROFILE..x.c``2ptqre.``..+ | 0x5c9e2b23
9154 | iCCP | 293 | ICC profile..x.c``2ptqre.``..+ | 0x7d41600b
9459 | iTXt | 7156 | XML:com.adobe.xmp.....<?xpacke | 0x8d6d70ba
16627 | gAMA | 4 | .... | 0x0bfc6105
16643 | bKGD | 6 | ...... | 0xa0bda793

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