xymp
/
exiv2
3
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Merge pull request #1351 from Exiv2/fix_1343_png_0.27

Browse Source 
Fix 1343 png 0.27
main
Robin Mills 5 years ago committed by GitHub
parent 203c3907ed 9fa6d3965a
commit bc01aac114
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
8 changed files with 165 additions and 13 deletions
Show Stats Download Patch File Download Diff File

50
src/pngimage.cpp
Unescape Escape View File

@ -304,6 +304,7 @@ namespace Exiv2 {
bool zTXt = std::strcmp(chType,"zTXt")== 0; bool zTXt = std::strcmp(chType,"zTXt")== 0;
bool iCCP = std::strcmp(chType,"iCCP")== 0; bool iCCP = std::strcmp(chType,"iCCP")== 0;
bool iTXt = std::strcmp(chType,"iTXt")== 0; bool iTXt = std::strcmp(chType,"iTXt")== 0;
bool eXIf = std::strcmp(chType,"eXIf")== 0;
// for XMP, ICC etc: read and format data // for XMP, ICC etc: read and format data
bool bXMP = option == kpsXMP && findi(dataString,xmpKey)==0; bool bXMP = option == kpsXMP && findi(dataString,xmpKey)==0;
@ -313,7 +314,7 @@ namespace Exiv2 {
bool bSoft = option == kpsRecursive && findi(dataString,softKey)==0; bool bSoft = option == kpsRecursive && findi(dataString,softKey)==0;
bool bComm = option == kpsRecursive && findi(dataString,commKey)==0; bool bComm = option == kpsRecursive && findi(dataString,commKey)==0;
bool bDesc = option == kpsRecursive && findi(dataString,descKey)==0; bool bDesc = option == kpsRecursive && findi(dataString,descKey)==0;
bool bDump = bXMP || bICC || bExif || bIptc || bSoft || bComm || bDesc ; bool bDump = bXMP || bICC || bExif || bIptc || bSoft || bComm || bDesc || eXIf ;
if( bDump ) { if( bDump ) {
DataBuf dataBuf; DataBuf dataBuf;
@ -339,6 +340,9 @@ namespace Exiv2 {
if ( iTXt ) { if ( iTXt ) {
bGood = (start+3) < dataOffset ; // good if not a nul chunk bGood = (start+3) < dataOffset ; // good if not a nul chunk
} }
if ( eXIf ) {
bGood = true ;// eXIf requires no pre-processing)
}
// format is content dependent // format is content dependent
if ( bGood ) { if ( bGood ) {
@ -383,6 +387,11 @@ namespace Exiv2 {
out.write((const char*)decoded.pData_,decoded.size_); out.write((const char*)decoded.pData_,decoded.size_);
bLF = true; bLF = true;
} }
if ( eXIf && option == kpsRecursive ) {
// create memio object with the data, then print the structure
BasicIo::AutoPtr p = BasicIo::AutoPtr(new MemIo(data,dataOffset));
printTiffStructure(*p,out,option,depth);
}
if ( bLF ) out << std::endl; if ( bLF ) out << std::endl;
} }
@ -448,8 +457,11 @@ namespace Exiv2 {
/// \todo analyse remaining chunks of the standard /// \todo analyse remaining chunks of the standard
// Perform a chunk triage for item that we need. // Perform a chunk triage for item that we need.
if (chunkType == "IEND" || chunkType == "IHDR" || chunkType == "tEXt" || chunkType == "zTXt" || if(chunkType == "IEND" || chunkType == "IHDR"
chunkType == "iTXt" || chunkType == "iCCP") { || chunkType == "tEXt" || chunkType == "zTXt"
|| chunkType == "eXIf"
|| chunkType == "iTXt" || chunkType == "iCCP"
){
DataBuf chunkData(chunkLength); DataBuf chunkData(chunkLength);
readChunk(chunkData, *io_); // Extract chunk data. readChunk(chunkData, *io_); // Extract chunk data.
@ -463,6 +475,13 @@ namespace Exiv2 {
PngChunk::decodeTXTChunk(this, chunkData, PngChunk::zTXt_Chunk); PngChunk::decodeTXTChunk(this, chunkData, PngChunk::zTXt_Chunk);
} else if (chunkType == "iTXt") { } else if (chunkType == "iTXt") {
PngChunk::decodeTXTChunk(this, chunkData, PngChunk::iTXt_Chunk); PngChunk::decodeTXTChunk(this, chunkData, PngChunk::iTXt_Chunk);
} else if (chunkType == "eXIf") {
ByteOrder bo = TiffParser::decode(exifData(),
iptcData(),
xmpData(),
chunkData.pData_,
chunkData.size_);
setByteOrder(bo);
} else if (chunkType == "iCCP") { } else if (chunkType == "iCCP") {
// The ICC profile name can vary from 1-79 characters. // The ICC profile name can vary from 1-79 characters.
uint32_t iccOffset = 0; uint32_t iccOffset = 0;
@ -540,9 +559,9 @@ namespace Exiv2 {
// Read chunk header. // Read chunk header.
std::memset(cheaderBuf.pData_, 0x00, cheaderBuf.size_); std::memset(cheaderBuf.pData_, 0x00, cheaderBuf.size_);
long bufRead = io_->read(cheaderBuf.pData_, cheaderBuf.size_); long bufRead = io_->read(cheaderBuf.pData_, 8);
if (io_->error()) throw Error(kerFailedToReadImageData); if (io_->error()) throw Error(kerFailedToReadImageData);
if (bufRead != cheaderBuf.size_) throw Error(kerInputDataReadFailed); if (bufRead != 8) throw Error(kerInputDataReadFailed);
// Decode chunk data length. // Decode chunk data length.
@ -551,7 +570,7 @@ namespace Exiv2 {
// Read whole chunk : Chunk header + Chunk data (not fixed size - can be null) + CRC (4 bytes). // Read whole chunk : Chunk header + Chunk data (not fixed size - can be null) + CRC (4 bytes).
DataBuf chunkBuf(8 + dataOffset + 4); // Chunk header (8 bytes) + Chunk data + CRC (4 bytes). DataBuf chunkBuf(8 + dataOffset + 4); // Chunk header (8 bytes) + Chunk data + CRC (4 bytes).
memcpy(chunkBuf.pData_, cheaderBuf.pData_, 8); // Copy header. memcpy(chunkBuf.pData_, cheaderBuf.pData_, 8); // Copy header.
bufRead = io_->read(chunkBuf.pData_ + 8, dataOffset + 4); // Extract chunk data + CRC bufRead = io_->read(chunkBuf.pData_ + 8, dataOffset + 4); // Extract chunk data + CRC
if (io_->error()) throw Error(kerFailedToReadImageData); if (io_->error()) throw Error(kerFailedToReadImageData);
@ -561,16 +580,21 @@ namespace Exiv2 {
memcpy(szChunk,cheaderBuf.pData_ + 4,4); memcpy(szChunk,cheaderBuf.pData_ + 4,4);
szChunk[4] = 0; szChunk[4] = 0;
if (!memcmp(cheaderBuf.pData_ + 4, "IEND", 4)) if ( !strcmp(szChunk,"IEND") )
{ {
// Last chunk found: we write it and done. // Last chunk found: we write it and done.
#ifdef EXIV2_DEBUG_MESSAGES #ifdef EXIV2_DEBUG_MESSAGES
std::cout << "Exiv2::PngImage::doWriteMetadata: Write IEND chunk (length: " << dataOffset << ")\n"; std::cout << "Exiv2::PngImage::doWriteMetadata: Write IEND chunk (length: " << dataOffset << ")\n";
#endif #endif
if (outIo.write(chunkBuf.pData_, chunkBuf.size_) != chunkBuf.size_) throw Error(kerImageWriteFailed); if (outIo.write(chunkBuf.pData_, chunkBuf.size_) != chunkBuf.size_)
throw Error(kerImageWriteFailed);
return; return;
} }
else if (!memcmp(cheaderBuf.pData_ + 4, "IHDR", 4)) else if ( !strcmp(szChunk, "eXIf") ) {
; // do nothing Exif metdata is written following IHDR
; // as zTXt chunk with signature Raw profile type exif__
}
else if ( !strcmp(szChunk, "IHDR") )
{ {
#ifdef EXIV2_DEBUG_MESSAGES #ifdef EXIV2_DEBUG_MESSAGES
std::cout << "Exiv2::PngImage::doWriteMetadata: Write IHDR chunk (length: " << dataOffset << ")\n"; std::cout << "Exiv2::PngImage::doWriteMetadata: Write IHDR chunk (length: " << dataOffset << ")\n";
@ -672,10 +696,10 @@ namespace Exiv2 {
} }
} }
} }
else if (!memcmp(cheaderBuf.pData_ + 4, "tEXt", 4) || else if (!strcmp(szChunk, "tEXt") ||
!memcmp(cheaderBuf.pData_ + 4, "zTXt", 4) || !strcmp(szChunk, "zTXt") ||
!memcmp(cheaderBuf.pData_ + 4, "iTXt", 4) || !strcmp(szChunk, "iTXt") ||
!memcmp(cheaderBuf.pData_ + 4, "iCCP", 4)) !strcmp(szChunk, "iCCP"))
{ {
DataBuf key = PngChunk::keyTXTChunk(chunkBuf, true); DataBuf key = PngChunk::keyTXTChunk(chunkBuf, true);
if (compare("Raw profile type exif", key, 21) || if (compare("Raw profile type exif", key, 21) ||

2
test/Makefile
Unescape Escape View File

@ -85,6 +85,7 @@ TESTS = addmoddel.sh \
iso65k-test.sh \ iso65k-test.sh \
modify-test.sh \ modify-test.sh \
path-test.sh \ path-test.sh \
png-test.sh \
preview-test.sh \ preview-test.sh \
stdin-test.sh \ stdin-test.sh \
stringto-test.sh \ stringto-test.sh \
@ -102,6 +103,7 @@ icc-test \
iso65k-test \ iso65k-test \
modify-test \ modify-test \
path-test \ path-test \
png-test \
stringto-test \ stringto-test \
webp-test \ webp-test \
write2-test \ write2-test \

BIN
test/data/1343_comment.png
View File

Binary file not shown.
Side by Side

After

Width:  |  Height:  |  Size: 400 B

BIN
test/data/1343_empty.png
View File

Binary file not shown.
Side by Side

After

Width:  |  Height:  |  Size: 364 B

BIN
test/data/1343_exif.png
View File

Binary file not shown.
Side by Side

After

Width:  |  Height:  |  Size: 484 B

71
test/data/png-test.out
Unescape Escape View File

@ -0,0 +1,71 @@
STRUCTURE OF PNG FILE: 1343_empty.png
address | chunk | length | data | checksum
8 | IHDR | 13 | .......d.... | 0x4ce4e85c
33 | sRGB | 1 | | 0xaece1ce9
46 | gAMA | 4 | .... | 0x0bfc6105
62 | pHYs | 9 | ......... | 0xc76fa864
83 | IDAT | 257 | x^..1..0......t.....h......z.. | 0x64465429
352 | IEND | 0 | | 0xae426082
STRUCTURE OF PNG FILE: 1343_empty.png
address | chunk | length | data | checksum
8 | IHDR | 13 | .......d.... | 0x4ce4e85c
33 | iTXt | 39 | Description.....x.K.H.KOMQH... | 0xe0a1c8ce
84 | sRGB | 1 | | 0xaece1ce9
97 | gAMA | 4 | .... | 0x0bfc6105
113 | pHYs | 9 | ......... | 0xc76fa864
134 | IDAT | 257 | x^..1..0......t.....h......z.. | 0x64465429
403 | IEND | 0 | | 0xae426082
changed comment
STRUCTURE OF PNG FILE: 1343_comment.png
address | chunk | length | data | checksum
8 | IHDR | 13 | .......d.... | 0x4ce4e85c
33 | sRGB | 1 | | 0xaece1ce9
46 | gAMA | 4 | .... | 0x0bfc6105
62 | pHYs | 9 | ......... | 0xc76fa864
83 | IDAT | 257 | x^..1..0......t.....h......z.. | 0x64465429
352 | tEXt | 24 | Comment.Can you read me? | 0x83cad5fa
388 | IEND | 0 | | 0xae426082
STRUCTURE OF PNG FILE: 1343_comment.png
address | chunk | length | data | checksum
8 | IHDR | 13 | .......d.... | 0x4ce4e85c
33 | iTXt | 39 | Description.....x.K.H.KOMQH... | 0xe0a1c8ce
84 | sRGB | 1 | | 0xaece1ce9
97 | gAMA | 4 | .... | 0x0bfc6105
113 | pHYs | 9 | ......... | 0xc76fa864
134 | IDAT | 257 | x^..1..0......t.....h......z.. | 0x64465429
403 | tEXt | 24 | Comment.Can you read me? | 0x83cad5fa
439 | IEND | 0 | | 0xae426082
changed comment
STRUCTURE OF PNG FILE: 1343_exif.png
address | chunk | length | data | checksum
8 | IHDR | 13 | .......d.... | 0x4ce4e85c
33 | sRGB | 1 | | 0xaece1ce9
46 | gAMA | 4 | .... | 0x0bfc6105
62 | pHYs | 9 | ......... | 0xc76fa864
83 | IDAT | 257 | x^..1..0......t.....h......z.. | 0x64465429
352 | eXIf | 108 | MM.*.................J........ | 0x764e86e1
472 | IEND | 0 | | 0xae426082
Exif.Image.ImageDescription Ascii 17 Can you read me?
Exif.Image.XResolution Rational 1 72
Exif.Image.YResolution Rational 1 72
Exif.Image.ResolutionUnit Short 1 inch
Exif.Image.YCbCrPositioning Short 1 Centered
STRUCTURE OF PNG FILE: 1343_exif.png
address | chunk | length | data | checksum
8 | IHDR | 13 | .......d.... | 0x4ce4e85c
33 | iTXt | 39 | Description.....x.K.H.KOMQH... | 0xe0a1c8ce
84 | zTXt | 145 | Raw profile type exif..x.U.... | 0x2f6d89e8
241 | sRGB | 1 | | 0xaece1ce9
254 | gAMA | 4 | .... | 0x0bfc6105
270 | pHYs | 9 | ......... | 0xc76fa864
291 | IDAT | 257 | x^..1..0......t.....h......z.. | 0x64465429
560 | IEND | 0 | | 0xae426082
changed comment
Exif.Image.ImageDescription Ascii 17 Can you read me?
Exif.Image.XResolution Rational 1 72
Exif.Image.YResolution Rational 1 72
Exif.Image.ResolutionUnit Short 1 inch
Exif.Image.YCbCrPositioning Short 1 Centered

23
test/png-test.sh
Unescape Escape View File

@ -0,0 +1,23 @@
#!/usr/bin/env bash
# Test PNG support (-pS, -pc, -pa -c )
source ./functions.source
( cd "$testdir"
files="1343_empty.png 1343_comment.png 1343_exif.png"
copyTestFiles $files
for file in $files ; do
for i in 1 2 ; do
runTest exiv2 -pS $file
runTest exiv2 -pc $file
runTest exiv2 -pa $file
runTest exiv2 -c 'changed comment' $file
done
done
) > $results 2>&1
reportTest
# That's all Folks!
##

32
tests/bash_tests/testcases.py
Unescape Escape View File

@ -868,6 +868,38 @@ set Exif.Photo.DateTimeDigitized 2020:05:26 07:31:42
# print(out) # print(out)
def png_test(self):
# Test PNG support (-pS, -pc, -c, -pa)
# files="1343_empty.png 1343_comment.png 1343_exif.png"
# copyTestFiles $files
# runTest exiv2 -c 'comment in Reagan to hide non UTF-8 bytes'
# for file in $files ; do
# for i in 1 2 ; do
# runTest exiv2 -pS $file
# runTest exiv2 -pc $file
# runTest exiv2 -pa $file
# runTest exiv2 -c 'changed comment' $file
# done
# done
out = BT.Output()
files = ['1343_empty.png'
,'1343_comment.png'
,'1343_exif.png'
]
for file in files:
BT.copyTestFile(file)
for i in [1,2]:
out += BT.Executer('exiv2 -pS {file}', vars())
out += BT.Executer('exiv2 -pc {file}', vars())
if i ==1:
out+= ''
out += BT.Executer('exiv2 -pa {file}', vars())
out += BT.Executer('exiv2 -c "changed comment" {file}', vars())
BT.reportTest('png-test', out) # skip! blank lines from -pc are in the wrong order!
def preview_test(self): def preview_test(self):
# Test driver for previews # Test driver for previews
images = [ images = [

Write Preview
Loading…
Cancel
Save