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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 = 0;
int nMaxLineCount = 0;
const char *pszCodestreamMarkers = nullptr;
bool bDumpAll = false;
bool bDumpCodestream = false;
bool bDumpBinaryContent = false;
bool bDumpTextContent = false;
bool bDumpJP2Boxes = false;
bool bStopAtSOD = false;
bool bSODEncountered = false;
bool bAllowGetFileSize = true;
};
} // namespace
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 == 1) ? "Enumerated Colourspace"
: (nMeth == 2) ? "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;