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gdaljp2structure.cpp
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/******************************************************************************
*
* Project: GDAL
* Purpose: GDALJP2Stucture - Dump structure of a JP2/J2K file
* Author: Even Rouault, <even dot rouault at spatialys dot com>
*
******************************************************************************
* Copyright (c) 2015, European Union (European Environment Agency)
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
****************************************************************************/
#include "cpl_port.h"
#include "gdaljp2metadata.h"
#include <cmath>
#include <cstring>
#if HAVE_FCNTL_H
# include <fcntl.h>
#endif
#include <string>
#include "cpl_conv.h"
#include "cpl_error.h"
#include "cpl_minixml.h"
#include "cpl_string.h"
#include "cpl_vsi.h"
#include "gdal.h"
#include "gdal_priv.h"
constexpr int knbMaxJPEG2000Components = 16384; // per the JPEG2000 standard
namespace
{
struct DumpContext
{
int nCurLineCount;
int nMaxLineCount;
};
}
static CPLXMLNode* GetLastChild(CPLXMLNode* psParent)
{
CPLXMLNode* psChild = psParent->psChild;
while( psChild && psChild->psNext )
psChild = psChild->psNext;
return psChild;
}
static CPLXMLNode* _AddError(CPLXMLNode* psParent, const char* pszErrorMsg,
GIntBig nOffset = 0)
{
CPLXMLNode* psError = CPLCreateXMLNode( psParent, CXT_Element, "Error" );
CPLAddXMLAttributeAndValue(psError, "message", pszErrorMsg );
if( nOffset )
{
CPLAddXMLAttributeAndValue(psError, "offset",
CPLSPrintf(CPL_FRMT_GIB, nOffset ) );
}
return psError;
}
static CPLXMLNode* AddElement(CPLXMLNode* psParent,
CPLXMLNode*& psLastChild,
DumpContext* psDumpContext,
CPLXMLNode* psNewElt)
{
if( psDumpContext->nCurLineCount > psDumpContext->nMaxLineCount )
{
CPLDestroyXMLNode(psNewElt);
if( psDumpContext->nCurLineCount == psDumpContext->nMaxLineCount + 1 )
{
_AddError(psParent, "Too many lines in dump");
psDumpContext->nCurLineCount++;
}
return nullptr;
}
psDumpContext->nCurLineCount++;
if( psLastChild == nullptr )
psLastChild = GetLastChild(psParent);
if( psLastChild == nullptr )
psParent->psChild = psNewElt;
else
psLastChild->psNext = psNewElt;
psLastChild = psNewElt;
return psNewElt;
}
static void AddField(CPLXMLNode* psParent,
CPLXMLNode*& psLastChild,
DumpContext* psDumpContext,
const char* pszFieldName,
int nFieldSize, const char* pszValue,
const char* pszDescription = nullptr)
{
if( psDumpContext->nCurLineCount > psDumpContext->nMaxLineCount + 1 )
{
return;
}
CPLXMLNode* psField = CPLCreateXMLElementAndValue(
nullptr, "Field", pszValue );
CPLAddXMLAttributeAndValue(psField, "name", pszFieldName );
CPLAddXMLAttributeAndValue(psField, "type", "string" );
CPLAddXMLAttributeAndValue(psField, "size", CPLSPrintf("%d", nFieldSize ) );
if( pszDescription )
CPLAddXMLAttributeAndValue(psField, "description", pszDescription );
AddElement(psParent, psLastChild, psDumpContext, psField);
}
static void AddHexField(CPLXMLNode* psParent,
CPLXMLNode*& psLastChild,
DumpContext* psDumpContext,
const char* pszFieldName,
int nFieldSize, const char* pszValue,
const char* pszDescription = nullptr)
{
if( psDumpContext->nCurLineCount > psDumpContext->nMaxLineCount + 1 )
{
return;
}
CPLXMLNode* psField = CPLCreateXMLElementAndValue(
nullptr, "Field", pszValue );
CPLAddXMLAttributeAndValue(psField, "name", pszFieldName );
CPLAddXMLAttributeAndValue(psField, "type", "hexint" );
CPLAddXMLAttributeAndValue(psField, "size", CPLSPrintf("%d", nFieldSize ) );
if( pszDescription )
CPLAddXMLAttributeAndValue(psField, "description", pszDescription );
AddElement(psParent, psLastChild, psDumpContext, psField);
}
static void AddField(CPLXMLNode* psParent,
CPLXMLNode*& psLastChild,
DumpContext* psDumpContext,
const char* pszFieldName, GByte nVal,
const char* pszDescription = nullptr)
{
if( psDumpContext->nCurLineCount > psDumpContext->nMaxLineCount + 1 )
{
return;
}
CPLXMLNode* psField = CPLCreateXMLElementAndValue(
nullptr, "Field", CPLSPrintf("%d", nVal) );
CPLAddXMLAttributeAndValue(psField, "name", pszFieldName );
CPLAddXMLAttributeAndValue(psField, "type", "uint8" );
if( pszDescription )
CPLAddXMLAttributeAndValue(psField, "description", pszDescription );
AddElement(psParent, psLastChild, psDumpContext, psField);
}
static void AddField(CPLXMLNode* psParent,
CPLXMLNode*& psLastChild,
DumpContext* psDumpContext,
const char* pszFieldName, GUInt16 nVal,
const char* pszDescription = nullptr)
{
if( psDumpContext->nCurLineCount > psDumpContext->nMaxLineCount + 1 )
{
return;
}
CPLXMLNode* psField = CPLCreateXMLElementAndValue(
nullptr, "Field", CPLSPrintf("%d", nVal) );
CPLAddXMLAttributeAndValue(psField, "name", pszFieldName );
CPLAddXMLAttributeAndValue(psField, "type", "uint16" );
if( pszDescription )
CPLAddXMLAttributeAndValue(psField, "description", pszDescription );
AddElement(psParent, psLastChild, psDumpContext, psField);
}
static void AddField(CPLXMLNode* psParent,
CPLXMLNode*& psLastChild,
DumpContext* psDumpContext,
const char* pszFieldName, GUInt32 nVal,
const char* pszDescription = nullptr)
{
if( psDumpContext->nCurLineCount - 1 >= psDumpContext->nMaxLineCount )
{
return;
}
CPLXMLNode* psField = CPLCreateXMLElementAndValue(
nullptr, "Field", CPLSPrintf("%u", nVal) );
CPLAddXMLAttributeAndValue(psField, "name", pszFieldName );
CPLAddXMLAttributeAndValue(psField, "type", "uint32" );
if( pszDescription )
CPLAddXMLAttributeAndValue(psField, "description", pszDescription );
AddElement(psParent, psLastChild, psDumpContext, psField);
}
static const char* GetInterpretationOfBPC(GByte bpc)
{
if( bpc == 255 )
return nullptr;
if( (bpc & 0x80) )
return CPLSPrintf("Signed %d bits", 1 + (bpc & 0x7F));
else
return CPLSPrintf("Unsigned %d bits", 1 + bpc);
}
static const char* GetStandardFieldString(GUInt16 nVal)
{
switch(nVal)
{
case 1: return "Codestream contains no extensions";
case 2: return "Contains multiple composition layers";
case 3: return "Codestream is compressed using JPEG 2000 and requires at least a Profile 0 decoder";
case 4: return "Codestream is compressed using JPEG 2000 and requires at least a Profile 1 decoder";
case 5: return "Codestream is compressed using JPEG 2000 unrestricted";
case 35: return "Contains IPR metadata";
case 67: return "Contains GMLJP2 metadata";
default: return nullptr;
}
}
static void DumpGeoTIFFBox(CPLXMLNode* psBox,
GDALJP2Box& oBox,
DumpContext* psDumpContext)
{
GIntBig nBoxDataLength = oBox.GetDataLength();
GByte* pabyBoxData = oBox.ReadBoxData();
GDALDriver* poVRTDriver = static_cast<GDALDriver*>(GDALGetDriverByName("VRT"));
if( pabyBoxData && poVRTDriver)
{
CPLString osTmpFilename(CPLSPrintf("/vsimem/tmp_%p.tif", oBox.GetFILE()));
CPL_IGNORE_RET_VAL(VSIFCloseL(VSIFileFromMemBuffer(
osTmpFilename, pabyBoxData, nBoxDataLength, FALSE) ));
CPLPushErrorHandler(CPLQuietErrorHandler);
GDALDataset* poDS = GDALDataset::FromHandle(GDALOpen(osTmpFilename, GA_ReadOnly));
CPLPopErrorHandler();
// Reject GeoJP2 boxes with a TIFF with band_count > 1.
if( poDS && poDS->GetRasterCount() > 1 )
{
GDALClose(poDS);
poDS = nullptr;
}
if( poDS )
{
CPLString osTmpVRTFilename(CPLSPrintf("/vsimem/tmp_%p.vrt", oBox.GetFILE()));
GDALDataset* poVRTDS = poVRTDriver->CreateCopy(osTmpVRTFilename, poDS, FALSE, nullptr, nullptr, nullptr);
GDALClose(poVRTDS);
GByte* pabyXML = VSIGetMemFileBuffer( osTmpVRTFilename, nullptr, FALSE );
CPLXMLNode* psXMLVRT = CPLParseXMLString(reinterpret_cast<const char*>(pabyXML));
if( psXMLVRT )
{
++psDumpContext->nCurLineCount;
CPLXMLNode* psXMLContentNode =
CPLCreateXMLNode( psBox, CXT_Element, "DecodedGeoTIFF" );
psXMLContentNode->psChild = psXMLVRT;
CPLXMLNode* psPrev = nullptr;
for(CPLXMLNode* psIter = psXMLVRT->psChild; psIter; psIter = psIter->psNext)
{
if( psIter->eType == CXT_Element &&
strcmp(psIter->pszValue, "VRTRasterBand") == 0 )
{
CPLXMLNode* psNext = psIter->psNext;
psIter->psNext = nullptr;
CPLDestroyXMLNode(psIter);
if( psPrev )
psPrev->psNext = psNext;
else
break;
psIter = psPrev;
}
psPrev = psIter;
}
CPLCreateXMLNode(psXMLVRT, CXT_Element, "VRTRasterBand");
}
VSIUnlink(osTmpVRTFilename);
GDALClose(poDS);
}
VSIUnlink(osTmpFilename);
}
CPLFree(pabyBoxData);
}
static void DumpFTYPBox(CPLXMLNode* psBox, GDALJP2Box& oBox,
DumpContext* psDumpContext)
{
GIntBig nBoxDataLength = oBox.GetDataLength();
GByte* pabyBoxData = oBox.ReadBoxData();
if( pabyBoxData )
{
CPLXMLNode* psDecodedContent =
CPLCreateXMLNode( psBox, CXT_Element, "DecodedContent" );
GIntBig nRemainingLength = nBoxDataLength;
GByte* pabyIter = pabyBoxData;
CPLXMLNode* psLastChild = nullptr;
if( nRemainingLength >= 4 )
{
char szBranding[5];
memcpy(szBranding, pabyIter, 4);
szBranding[4] = 0;
AddField(psDecodedContent, psLastChild, psDumpContext, "BR", 4, szBranding);
pabyIter += 4;
nRemainingLength -= 4;
}
if( nRemainingLength >= 4 )
{
GUInt32 nVal;
memcpy(&nVal, pabyIter, 4);
CPL_MSBPTR32(&nVal);
AddField(psDecodedContent, psLastChild, psDumpContext, "MinV", nVal);
pabyIter += 4;
nRemainingLength -= 4;
}
int nCLIndex = 0;
while( nRemainingLength >= 4 )
{
char szBranding[5];
memcpy(szBranding, pabyIter, 4);
szBranding[4] = 0;
AddField(psDecodedContent,
psLastChild,
psDumpContext,
CPLSPrintf("CL%d", nCLIndex),
4, szBranding);
pabyIter += 4;
nRemainingLength -= 4;
nCLIndex ++;
}
if( nRemainingLength > 0 )
AddElement( psDecodedContent, psLastChild,
psDumpContext,
CPLCreateXMLElementAndValue(
nullptr, "RemainingBytes",
CPLSPrintf("%d", static_cast<int>(nRemainingLength) )));
}
CPLFree(pabyBoxData);
}
static void DumpIHDRBox(CPLXMLNode* psBox, GDALJP2Box& oBox,
DumpContext* psDumpContext)
{
GIntBig nBoxDataLength = oBox.GetDataLength();
GByte* pabyBoxData = oBox.ReadBoxData();
if( pabyBoxData )
{
CPLXMLNode* psDecodedContent =
CPLCreateXMLNode( psBox, CXT_Element, "DecodedContent" );
GIntBig nRemainingLength = nBoxDataLength;
GByte* pabyIter = pabyBoxData;
CPLXMLNode* psLastChild = nullptr;
if( nRemainingLength >= 4 )
{
GUInt32 nVal;
memcpy(&nVal, pabyIter, 4);
CPL_MSBPTR32(&nVal);
AddField(psDecodedContent, psLastChild, psDumpContext,
"HEIGHT", nVal);
pabyIter += 4;
nRemainingLength -= 4;
}
if( nRemainingLength >= 4 )
{
GUInt32 nVal;
memcpy(&nVal, pabyIter, 4);
CPL_MSBPTR32(&nVal);
AddField(psDecodedContent, psLastChild, psDumpContext,
"WIDTH", nVal);
pabyIter += 4;
nRemainingLength -= 4;
}
if( nRemainingLength >= 2 )
{
GUInt16 nVal;
memcpy(&nVal, pabyIter, 2);
CPL_MSBPTR16(&nVal);
AddField(psDecodedContent, psLastChild, psDumpContext,
"NC", nVal);
pabyIter += 2;
nRemainingLength -= 2;
}
if( nRemainingLength >= 1 )
{
AddField(psDecodedContent, psLastChild, psDumpContext,
"BPC", *pabyIter,
GetInterpretationOfBPC(*pabyIter));
pabyIter += 1;
nRemainingLength -= 1;
}
if( nRemainingLength >= 1 )
{
AddField(psDecodedContent, psLastChild, psDumpContext,
"C", *pabyIter);
pabyIter += 1;
nRemainingLength -= 1;
}
if( nRemainingLength >= 1 )
{
AddField(psDecodedContent, psLastChild, psDumpContext,
"UnkC", *pabyIter);
pabyIter += 1;
nRemainingLength -= 1;
}
if( nRemainingLength >= 1 )
{
AddField(psDecodedContent, psLastChild, psDumpContext,
"IPR", *pabyIter);
/*pabyIter += 1;*/
nRemainingLength -= 1;
}
if( nRemainingLength > 0 )
AddElement( psDecodedContent, psLastChild,
psDumpContext,
CPLCreateXMLElementAndValue(
nullptr, "RemainingBytes",
CPLSPrintf("%d", static_cast<int>(nRemainingLength) )));
}
CPLFree(pabyBoxData);
}
static void DumpBPCCBox(CPLXMLNode* psBox, GDALJP2Box& oBox,
DumpContext* psDumpContext)
{
GIntBig nBoxDataLength = oBox.GetDataLength();
GByte* pabyBoxData = oBox.ReadBoxData();
if( pabyBoxData )
{
CPLXMLNode* psDecodedContent =
CPLCreateXMLNode( psBox, CXT_Element, "DecodedContent" );
GIntBig nRemainingLength = nBoxDataLength;
GByte* pabyIter = pabyBoxData;
int nBPCIndex = 0;
CPLXMLNode* psLastChild = nullptr;
while( nRemainingLength >= 1 && nBPCIndex < knbMaxJPEG2000Components )
{
AddField(psDecodedContent,
psLastChild,
psDumpContext,
CPLSPrintf("BPC%d", nBPCIndex),
*pabyIter,
GetInterpretationOfBPC(*pabyIter));
nBPCIndex ++;
pabyIter += 1;
nRemainingLength -= 1;
}
if( nRemainingLength > 0 )
AddElement( psDecodedContent, psLastChild,
psDumpContext,
CPLCreateXMLElementAndValue(
nullptr, "RemainingBytes",
CPLSPrintf("%d", static_cast<int>(nRemainingLength) )));
}
CPLFree(pabyBoxData);
}
static void DumpCOLRBox(CPLXMLNode* psBox, GDALJP2Box& oBox,
DumpContext* psDumpContext)
{
GIntBig nBoxDataLength = oBox.GetDataLength();
GByte* pabyBoxData = oBox.ReadBoxData();
if( pabyBoxData )
{
CPLXMLNode* psDecodedContent =
CPLCreateXMLNode( psBox, CXT_Element, "DecodedContent" );
GIntBig nRemainingLength = nBoxDataLength;
GByte* pabyIter = pabyBoxData;
GByte nMeth;
CPLXMLNode* psLastChild = nullptr;
if( nRemainingLength >= 1 )
{
nMeth = *pabyIter;
AddField(psDecodedContent, psLastChild, psDumpContext, "METH", nMeth,
(nMeth == 0) ? "Enumerated Colourspace":
(nMeth == 1) ? "Restricted ICC profile": nullptr);
pabyIter += 1;
nRemainingLength -= 1;
}
if( nRemainingLength >= 1 )
{
AddField(psDecodedContent, psLastChild, psDumpContext, "PREC", *pabyIter);
pabyIter += 1;
nRemainingLength -= 1;
}
if( nRemainingLength >= 1 )
{
AddField(psDecodedContent, psLastChild, psDumpContext, "APPROX", *pabyIter);
pabyIter += 1;
nRemainingLength -= 1;
}
if( nRemainingLength >= 4 )
{
GUInt32 nVal;
memcpy(&nVal, pabyIter, 4);
CPL_MSBPTR32(&nVal);
AddField(psDecodedContent, psLastChild, psDumpContext, "EnumCS", nVal,
(nVal == 16) ? "sRGB" :
(nVal == 17) ? "greyscale":
(nVal == 18) ? "sYCC" : nullptr);
/*pabyIter += 4;*/
nRemainingLength -= 4;
}
if( nRemainingLength > 0 )
AddElement(psDecodedContent, psLastChild,
psDumpContext,
CPLCreateXMLElementAndValue(
nullptr, "RemainingBytes",
CPLSPrintf("%d", static_cast<int>(nRemainingLength) )));
}
CPLFree(pabyBoxData);
}
static void DumpPCLRBox(CPLXMLNode* psBox, GDALJP2Box& oBox,
DumpContext* psDumpContext)
{
GIntBig nBoxDataLength = oBox.GetDataLength();
GByte* pabyBoxData = oBox.ReadBoxData();
if( pabyBoxData )
{
CPLXMLNode* psDecodedContent =
CPLCreateXMLNode( psBox, CXT_Element, "DecodedContent" );
GIntBig nRemainingLength = nBoxDataLength;
GByte* pabyIter = pabyBoxData;
GUInt16 NE = 0;
CPLXMLNode* psLastChild = nullptr;
if( nRemainingLength >= 2 )
{
GUInt16 nVal;
memcpy(&nVal, pabyIter, 2);
CPL_MSBPTR16(&nVal);
NE = nVal;
AddField(psDecodedContent, psLastChild, psDumpContext, "NE", nVal);
pabyIter += 2;
nRemainingLength -= 2;
}
GByte NPC = 0;
if( nRemainingLength >= 1 )
{
NPC = *pabyIter;
AddField(psDecodedContent, psLastChild, psDumpContext, "NPC", NPC);
pabyIter += 1;
nRemainingLength -= 1;
}
int b8BitOnly = TRUE;
for(int i=0;i<NPC;i++)
{
if( nRemainingLength >= 1 )
{
b8BitOnly &= (*pabyIter <= 7);
AddField(psDecodedContent, psLastChild,
psDumpContext,
CPLSPrintf("B%d", i),
*pabyIter,
GetInterpretationOfBPC(*pabyIter));
pabyIter += 1;
nRemainingLength -= 1;
}
}
if( b8BitOnly )
{
for(int j=0;j<NE;j++)
{
for(int i=0;i<NPC;i++)
{
if( nRemainingLength >= 1 )
{
AddField(psDecodedContent, psLastChild,
psDumpContext,
CPLSPrintf("C_%d_%d", j, i),
*pabyIter);
pabyIter += 1;
nRemainingLength -= 1;
}
}
}
}
if( nRemainingLength > 0 )
AddElement( psDecodedContent, psLastChild,
psDumpContext,
CPLCreateXMLElementAndValue(
nullptr, "RemainingBytes",
CPLSPrintf("%d", static_cast<int>(nRemainingLength) )));
}
CPLFree(pabyBoxData);
}
static void DumpCMAPBox(CPLXMLNode* psBox, GDALJP2Box& oBox,
DumpContext* psDumpContext)
{
GIntBig nBoxDataLength = oBox.GetDataLength();
GByte* pabyBoxData = oBox.ReadBoxData();
if( pabyBoxData )
{
CPLXMLNode* psDecodedContent =
CPLCreateXMLNode( psBox, CXT_Element, "DecodedContent" );
GIntBig nRemainingLength = nBoxDataLength;
GByte* pabyIter = pabyBoxData;
int nIndex = 0;
CPLXMLNode* psLastChild = nullptr;
while( nRemainingLength >= 2 + 1 + 1 && nIndex < knbMaxJPEG2000Components )
{
GUInt16 nVal;
memcpy(&nVal, pabyIter, 2);
CPL_MSBPTR16(&nVal);
AddField(psDecodedContent, psLastChild, psDumpContext,
CPLSPrintf("CMP%d", nIndex),
nVal);
pabyIter += 2;
nRemainingLength -= 2;
AddField(psDecodedContent, psLastChild, psDumpContext,
CPLSPrintf("MTYP%d", nIndex),
*pabyIter,
(*pabyIter == 0) ? "Direct use":
(*pabyIter == 1) ? "Palette mapping": nullptr);
pabyIter += 1;
nRemainingLength -= 1;
AddField(psDecodedContent, psLastChild, psDumpContext,
CPLSPrintf("PCOL%d", nIndex),
*pabyIter);
pabyIter += 1;
nRemainingLength -= 1;
nIndex ++;
}
if( nRemainingLength > 0 )
AddElement( psDecodedContent, psLastChild, psDumpContext,
CPLCreateXMLElementAndValue(
nullptr, "RemainingBytes",
CPLSPrintf("%d", static_cast<int>(nRemainingLength) )));
}
CPLFree(pabyBoxData);
}
static void DumpCDEFBox(CPLXMLNode* psBox, GDALJP2Box& oBox,
DumpContext* psDumpContext)
{
GIntBig nBoxDataLength = oBox.GetDataLength();
GByte* pabyBoxData = oBox.ReadBoxData();
if( pabyBoxData )
{
CPLXMLNode* psDecodedContent =
CPLCreateXMLNode( psBox, CXT_Element, "DecodedContent" );
GIntBig nRemainingLength = nBoxDataLength;
GByte* pabyIter = pabyBoxData;
GUInt16 nChannels = 0;
CPLXMLNode* psLastChild = nullptr;
if( nRemainingLength >= 2 )
{
GUInt16 nVal;
memcpy(&nVal, pabyIter, 2);
nChannels = nVal;
CPL_MSBPTR16(&nVal);
AddField(psDecodedContent, psLastChild, psDumpContext, "N", nVal);
pabyIter += 2;
nRemainingLength -= 2;
}
for( int i=0; i < nChannels; i++ )
{
if( nRemainingLength >= 2 )
{
GUInt16 nVal;
memcpy(&nVal, pabyIter, 2);
CPL_MSBPTR16(&nVal);
AddField(psDecodedContent, psLastChild, psDumpContext,
CPLSPrintf("Cn%d", i),
nVal);
pabyIter += 2;
nRemainingLength -= 2;
}
if( nRemainingLength >= 2 )
{
GUInt16 nVal;
memcpy(&nVal, pabyIter, 2);
CPL_MSBPTR16(&nVal);
AddField(psDecodedContent, psLastChild, psDumpContext,
CPLSPrintf("Typ%d", i),
nVal,
(nVal == 0) ? "Colour channel":
(nVal == 1) ? "Opacity channel":
(nVal == 2) ? "Premultiplied opacity":
(nVal == 65535) ? "Not specified" : nullptr);
pabyIter += 2;
nRemainingLength -= 2;
}
if( nRemainingLength >= 2 )
{
GUInt16 nVal;
memcpy(&nVal, pabyIter, 2);
CPL_MSBPTR16(&nVal);
AddField(psDecodedContent, psLastChild, psDumpContext,
CPLSPrintf("Asoc%d", i),
nVal,
(nVal == 0) ? "Associated to the whole image":
(nVal == 65535) ? "Not associated with a particular colour":
"Associated with a particular colour");
pabyIter += 2;
nRemainingLength -= 2;
}
}
if( nRemainingLength > 0 )
AddElement( psDecodedContent, psLastChild, psDumpContext,
CPLCreateXMLElementAndValue(
nullptr, "RemainingBytes",
CPLSPrintf("%d", static_cast<int>(nRemainingLength) )));
}
CPLFree(pabyBoxData);
}
static void DumpRESxBox(CPLXMLNode* psBox, GDALJP2Box& oBox,
DumpContext* psDumpContext)
{
GIntBig nBoxDataLength = oBox.GetDataLength();
GByte* pabyBoxData = oBox.ReadBoxData();
char chC = oBox.GetType()[3];
if( pabyBoxData )
{
CPLXMLNode* psDecodedContent =
CPLCreateXMLNode( psBox, CXT_Element, "DecodedContent" );
GIntBig nRemainingLength = nBoxDataLength;
GByte* pabyIter = pabyBoxData;
GUInt16 nNumV = 0;
GUInt16 nNumH = 0;
GUInt16 nDenomV = 1;
GUInt16 nDenomH = 1;
GUInt16 nExpV = 0;
GUInt16 nExpH = 0;
CPLXMLNode* psLastChild = nullptr;
if( nRemainingLength >= 2 )
{
GUInt16 nVal;
memcpy(&nVal, pabyIter, 2);
CPL_MSBPTR16(&nVal);
nNumV = nVal;
AddField(psDecodedContent, psLastChild, psDumpContext,
CPLSPrintf("VR%cN", chC), nVal);
pabyIter += 2;
nRemainingLength -= 2;
}
if( nRemainingLength >= 2 )
{
GUInt16 nVal;
memcpy(&nVal, pabyIter, 2);
CPL_MSBPTR16(&nVal);
nDenomV = nVal;
AddField(psDecodedContent, psLastChild, psDumpContext,
CPLSPrintf("VR%cD", chC), nVal);
pabyIter += 2;
nRemainingLength -= 2;
}
if( nRemainingLength >= 2 )
{
GUInt16 nVal;
memcpy(&nVal, pabyIter, 2);
CPL_MSBPTR16(&nVal);
nNumH = nVal;
AddField(psDecodedContent, psLastChild, psDumpContext,
CPLSPrintf("HR%cN", chC), nVal);
pabyIter += 2;
nRemainingLength -= 2;
}
if( nRemainingLength >= 2 )
{
GUInt16 nVal;
memcpy(&nVal, pabyIter, 2);
CPL_MSBPTR16(&nVal);
nDenomH = nVal;
AddField(psDecodedContent, psLastChild, psDumpContext,
CPLSPrintf("HR%cD", chC), nVal);
pabyIter += 2;
nRemainingLength -= 2;
}
if( nRemainingLength >= 1 )
{
AddField(psDecodedContent, psLastChild, psDumpContext,
CPLSPrintf("VR%cE", chC), *pabyIter);
nExpV = *pabyIter;
pabyIter += 1;
nRemainingLength -= 1;
}
if( nRemainingLength >= 1 )
{
AddField(psDecodedContent, psLastChild, psDumpContext,
CPLSPrintf("HR%cE", chC), *pabyIter);
nExpH = *pabyIter;
/*pabyIter += 1;*/
nRemainingLength -= 1;
}
if( nRemainingLength == 0 )
{
const char* pszVRes =
(nDenomV == 0) ? "invalid" :
CPLSPrintf("%.03f", 1.0 * nNumV / nDenomV * pow(10.0, nExpV));
AddElement(psDecodedContent, psLastChild, psDumpContext,
CPLCreateXMLElementAndValue( nullptr, "VRes", pszVRes ));
const char* pszHRes =
(nDenomH == 0) ? "invalid" :
CPLSPrintf("%.03f", 1.0 * nNumH / nDenomH * pow(10.0, nExpH));
AddElement(psDecodedContent, psLastChild, psDumpContext,
CPLCreateXMLElementAndValue( nullptr, "HRes", pszHRes ));
}
else if( nRemainingLength > 0 )
AddElement(psDecodedContent, psLastChild, psDumpContext,
CPLCreateXMLElementAndValue(
nullptr, "RemainingBytes",
CPLSPrintf("%d", static_cast<int>(nRemainingLength) )));
}
CPLFree(pabyBoxData);
}
static void DumpRREQBox(CPLXMLNode* psBox, GDALJP2Box& oBox,
DumpContext* psDumpContext)
{
GIntBig nBoxDataLength = oBox.GetDataLength();
GByte* pabyBoxData = oBox.ReadBoxData();
if( pabyBoxData )
{
CPLXMLNode* psDecodedContent =
CPLCreateXMLNode( psBox, CXT_Element, "DecodedContent" );
GIntBig nRemainingLength = nBoxDataLength;
GByte* pabyIter = pabyBoxData;
GByte ML = 0;
CPLXMLNode* psLastChild = nullptr;
if( nRemainingLength >= 1 )
{
ML = *pabyIter;
AddField(psDecodedContent, psLastChild, psDumpContext, "ML", *pabyIter);
pabyIter += 1;
nRemainingLength -= 1;
}
if( nRemainingLength >= ML )
{
CPLString osHex("0x");
for(int i=0;i<ML;i++)
{
osHex += CPLSPrintf("%02X", *pabyIter);
pabyIter += 1;
nRemainingLength -= 1;
}
AddHexField(psDecodedContent, psLastChild, psDumpContext, "FUAM", static_cast<int>(ML), osHex.c_str());
}
if( nRemainingLength >= ML )
{
CPLString osHex("0x");
for(int i=0;i<ML;i++)
{
osHex += CPLSPrintf("%02X", *pabyIter);
pabyIter += 1;
nRemainingLength -= 1;
}
AddHexField(psDecodedContent, psLastChild, psDumpContext, "DCM", static_cast<int>(ML), osHex.c_str());
}
GUInt16 NSF = 0;
if( nRemainingLength >= 2 )
{
GUInt16 nVal;
memcpy(&nVal, pabyIter, 2);
CPL_MSBPTR16(&nVal);
NSF = nVal;
AddField(psDecodedContent, psLastChild, psDumpContext, "NSF", nVal);
pabyIter += 2;
nRemainingLength -= 2;
}
for(int iNSF=0;iNSF<NSF;iNSF++)
{
if( nRemainingLength >= 2 )
{
GUInt16 nVal;
memcpy(&nVal, pabyIter, 2);
CPL_MSBPTR16(&nVal);
AddField(psDecodedContent, psLastChild, psDumpContext,
CPLSPrintf("SF%d", iNSF), nVal,
GetStandardFieldString(nVal));
pabyIter += 2;
nRemainingLength -= 2;
}
else
break;
if( nRemainingLength >= ML )
{
CPLString osHex("0x");
for(int i=0;i<ML;i++)
{
osHex += CPLSPrintf("%02X", *pabyIter);
pabyIter += 1;
nRemainingLength -= 1;
}
AddHexField(psDecodedContent, psLastChild, psDumpContext,
CPLSPrintf("SM%d", iNSF),
static_cast<int>(ML), osHex.c_str());
}
else
break;
}
GUInt16 NVF = 0;
if( nRemainingLength >= 2 )
{
GUInt16 nVal;
memcpy(&nVal, pabyIter, 2);
CPL_MSBPTR16(&nVal);
NVF = nVal;
AddField(psDecodedContent, psLastChild, psDumpContext, "NVF", nVal);
pabyIter += 2;
nRemainingLength -= 2;
}
for(int iNVF=0;iNVF<NVF;iNVF++)
{
if( nRemainingLength >= 16 )
{
CPLString osHex("0x");
for(int i=0;i<16;i++)
{
osHex += CPLSPrintf("%02X", *pabyIter);
pabyIter += 1;
nRemainingLength -= 1;
}
AddHexField(psDecodedContent, psLastChild, psDumpContext,
CPLSPrintf("VF%d", iNVF),
static_cast<int>(ML), osHex.c_str());
}
else
break;
if( nRemainingLength >= ML )
{
CPLString osHex("0x");
for(int i=0;i<ML;i++)
{
osHex += CPLSPrintf("%02X", *pabyIter);
pabyIter += 1;
nRemainingLength -= 1;
}
AddHexField(psDecodedContent, psLastChild, psDumpContext,
CPLSPrintf("VM%d", iNVF),
static_cast<int>(ML), osHex.c_str());
}
else
break;
}
if( nRemainingLength > 0 )
AddElement( psDecodedContent, psLastChild, psDumpContext,
CPLCreateXMLElementAndValue(
nullptr, "RemainingBytes",
CPLSPrintf("%d", static_cast<int>(nRemainingLength) )));
}
CPLFree(pabyBoxData);
}
static CPLXMLNode* CreateMarker(CPLXMLNode* psCSBox,
CPLXMLNode*& psLastChildCSBox,
DumpContext* psDumpContext,
const char* pszName,
GIntBig nOffset, GIntBig nLength)
{
CPLXMLNode* psMarker = CPLCreateXMLNode( nullptr, CXT_Element, "Marker" );
CPLAddXMLAttributeAndValue(psMarker, "name", pszName );
CPLAddXMLAttributeAndValue(psMarker, "offset",
CPLSPrintf(CPL_FRMT_GIB, nOffset ) );
CPLAddXMLAttributeAndValue(psMarker, "length",
CPLSPrintf(CPL_FRMT_GIB, 2 + nLength ) );
return AddElement( psCSBox, psLastChildCSBox, psDumpContext, psMarker );
}
static void AddError(CPLXMLNode* psParent,
CPLXMLNode*& psLastChild,
DumpContext* psDumpContext,
const char* pszErrorMsg,
GIntBig nOffset = 0)
{
if( psDumpContext->nCurLineCount > psDumpContext->nMaxLineCount + 1 )
{
return;
}
AddElement( psParent, psLastChild, psDumpContext,
_AddError(nullptr, pszErrorMsg, nOffset) );
}
static const char* GetMarkerName(GByte byVal)
{
switch(byVal)
{
case 0x90: return "SOT";
case 0x50: return "CAP";
case 0x51: return "SIZ";