void PSD_MetaHandler::CacheFileData()
{
XMP_IO* fileRef = this->parent->ioRef;
XMP_PacketInfo & packetInfo = this->packetInfo;
XMP_AbortProc abortProc = this->parent->abortProc;
void * abortArg = this->parent->abortArg;
const bool checkAbort = (abortProc != 0);
XMP_Assert ( ! this->containsXMP );
// Set containsXMP to true here only if the XMP image resource is found.
if ( checkAbort && abortProc(abortArg) ) {
XMP_Throw ( "PSD_MetaHandler::CacheFileData - User abort", kXMPErr_UserAbort );
}
XMP_Uns8 psdHeader[30];
XMP_Uns32 ioLen, cmLen;
XMP_Int64 filePos = 0;
fileRef->Rewind ( );
ioLen = fileRef->Read ( psdHeader, 30 );
if ( ioLen != 30 ) return; // Throw?
this->imageHeight = GetUns32BE ( &psdHeader[14] );
this->imageWidth = GetUns32BE ( &psdHeader[18] );
cmLen = GetUns32BE ( &psdHeader[26] );
XMP_Int64 psirOrigin = 26 + 4 + cmLen;
filePos = fileRef->Seek ( psirOrigin, kXMP_SeekFromStart );
if ( filePos != psirOrigin ) return; // Throw?
if ( ! XIO::CheckFileSpace ( fileRef, 4 ) ) return; // Throw?
XMP_Uns32 psirLen = XIO::ReadUns32_BE ( fileRef );
this->psirMgr.ParseFileResources ( fileRef, psirLen );
PSIR_Manager::ImgRsrcInfo xmpInfo;
bool found = this->psirMgr.GetImgRsrc ( kPSIR_XMP, &xmpInfo );
if ( found ) {
// printf ( "PSD_MetaHandler::CacheFileData - XMP packet offset %d (0x%X), size %d\n",
// xmpInfo.origOffset, xmpInfo.origOffset, xmpInfo.dataLen );
this->packetInfo.offset = xmpInfo.origOffset;
this->packetInfo.length = xmpInfo.dataLen;
this->packetInfo.padSize = 0; // Assume for now, set these properly in ProcessXMP.
this->packetInfo.charForm = kXMP_CharUnknown;
this->packetInfo.writeable = true;
this->xmpPacket.assign ( (XMP_StringPtr)xmpInfo.dataPtr, xmpInfo.dataLen );
this->containsXMP = true;
}
} // PSD_MetaHandler::CacheFileData
void TIFF_MetaHandler::WriteTempFile ( XMP_IO* tempRef )
{
XMP_IO* origRef = this->parent->ioRef;
XMP_AbortProc abortProc = this->parent->abortProc;
void * abortArg = this->parent->abortArg;
XMP_Int64 fileLen = origRef->Length();
if ( fileLen > 0xFFFFFFFFLL ) { // Check before making a copy of the file.
XMP_Throw ( "TIFF fles can't exceed 4GB", kXMPErr_BadTIFF );
}
XMP_ProgressTracker* progressTracker = this->parent->progressTracker;
if ( progressTracker != 0 ) progressTracker->BeginWork ( (float)fileLen );
origRef->Rewind ( );
tempRef->Truncate ( 0 );
XIO::Copy ( origRef, tempRef, fileLen, abortProc, abortArg );
try {
this->parent->ioRef = tempRef; // ! Make UpdateFile update the temp.
this->UpdateFile ( false );
this->parent->ioRef = origRef;
} catch ( ... ) {
this->parent->ioRef = origRef;
throw;
}
if ( progressTracker != 0 ) progressTracker->WorkComplete();
} // TIFF_MetaHandler::WriteTempFile
void GIF_MetaHandler::WriteTempFile ( XMP_IO* tempRef )
{
XMP_Assert( this->needsUpdate );
XMP_IO* originalRef = this->parent->ioRef;
originalRef->Rewind();
tempRef->Truncate ( 0 );
if ( XMPPacketOffset != 0 )
{
// Copying blocks before XMP Application Block
XIO::Copy( originalRef, tempRef, XMPPacketOffset );
// Writing XMP Packet
tempRef->Write( this->xmpPacket.c_str(), (XMP_Uns32)this->xmpPacket.size() );
// Copying Rest of the file
originalRef->Seek( XMPPacketLength, kXMP_SeekFromCurrent );
XIO::Copy( originalRef, tempRef, originalRef->Length() - originalRef->Offset() );
}
else
{
if ( trailerOffset == 0 )
XMP_Throw( "Not able to write XMP packet in GIF file", kXMPErr_BadFileFormat );
// Copying blocks before XMP Application Block
XIO::Copy( originalRef, tempRef, trailerOffset );
// Writing Extension Introducer
XIO::WriteUns8( tempRef, kXMP_block_Extension );
// Writing Application Extension label
XIO::WriteUns8( tempRef, 0xFF );
// Writing Application Extension label
XIO::WriteUns8( tempRef, APP_ID_LEN );
// Writing Application Extension label
tempRef->Write( XMP_APP_ID_DATA, APP_ID_LEN );
// Writing XMP Packet
tempRef->Write( this->xmpPacket.c_str(), (XMP_Uns32)this->xmpPacket.size() );
// Writing Magic trailer
XMP_Uns8 magicByte = 0x01;
tempRef->Write( &magicByte, 1 );
for ( magicByte = 0xFF; magicByte != 0x00; --magicByte )
tempRef->Write( &magicByte, 1 );
tempRef->Write( &magicByte, 1 );
tempRef->Write( &magicByte, 1 );
// Copying Rest of the file
XIO::Copy( originalRef, tempRef, originalRef->Length() - originalRef->Offset() );
}
} // GIF_MetaHandler::WriteTempFile
void Matroska_MetaHandler::WriteTempFile(XMP_IO* tempRef)
{
XMP_Assert(needsUpdate);
XMP_IO* originalRef = parent->ioRef;
bool localProgressTracking(false);
XMP_ProgressTracker* progressTracker = parent->progressTracker;
if (progressTracker)
{
float xmpSize = static_cast<float>(xmpPacket.size());
if (progressTracker->WorkInProgress())
{
progressTracker->AddTotalWork(xmpSize);
}
else
{
localProgressTracking = true;
progressTracker->BeginWork(xmpSize);
}
}
XMP_Assert(tempRef);
XMP_Assert(originalRef);
tempRef->Rewind();
originalRef->Rewind();
XIO::Copy(originalRef, tempRef, originalRef->Length(), parent->abortProc, parent->abortArg);
try
{
parent->ioRef = tempRef; // ! Fool UpdateFile into using the temp file.
UpdateFile(false);
parent->ioRef = originalRef;
}
catch (...)
{
parent->ioRef = originalRef;
throw;
}
if (localProgressTracking) progressTracker->WorkComplete();
}
void WEBP_MetaHandler::CacheFileData()
{
this->containsXMP = false; // assume for now
XMP_IO* file = this->parent->ioRef;
this->initialFileSize = file->Length();
file->Rewind();
XMP_Int64 filePos = 0;
while (filePos < this->initialFileSize) {
this->mainChunk = new WEBP::Container(this);
filePos = file->Offset();
}
// covered before => internal error if it occurs
XMP_Validate(file->Offset() == this->initialFileSize,
"WEBP_MetaHandler::CacheFileData: unknown data at end of file",
kXMPErr_InternalFailure);
}
// =================================================================================================
// SVG_MetaHandler::WriteTempFile
// ==============================
//
void SVG_MetaHandler::WriteTempFile( XMP_IO* tempRef )
{
XMP_Assert( this->needsUpdate );
XMP_IO* sourceRef = this->parent->ioRef;
if ( sourceRef == NULL || svgNode == NULL )
return;
tempRef->Rewind();
sourceRef->Rewind();
XMP_Int64 currentOffset = svgAdapter->firstSVGElementOffset;
XIO::Copy( sourceRef, tempRef, currentOffset );
OffsetStruct titleOffset = svgAdapter->GetElementOffsets( "title" );
OffsetStruct descOffset = svgAdapter->GetElementOffsets( "desc" );
OffsetStruct metadataOffset = svgAdapter->GetElementOffsets( "metadata" );
std::string title;
std::string description;
XML_NodePtr titleNode = svgNode->GetNamedElement( svgNode->ns.c_str(), "title" );
( void ) this->xmpObj.GetLocalizedText( kXMP_NS_DC, "title", "", "x-default", 0, &title, 0 );
XML_NodePtr descNode = svgNode->GetNamedElement( svgNode->ns.c_str(), "desc" );
( void ) this->xmpObj.GetLocalizedText( kXMP_NS_DC, "description", "", "x-default", 0, &description, 0 );
// Need to cover the case of both workflows
// This would have been called after inplace is not possible
// This would have called for safe update
if ( !isTitleUpdateReq )
{
if ( ( titleNode == NULL ) == ( title.empty() ) )
{
if ( titleNode != NULL && titleNode->content.size() == 1 && titleNode->content[ 0 ]->kind == kCDataNode && !XMP_LitMatch( titleNode->content[ 0 ]->value.c_str(), title.c_str() ) )
isTitleUpdateReq = true;
}
else
isTitleUpdateReq = true;
}
if ( !isDescUpdateReq )
{
if ( ( descNode == NULL ) == ( description.empty() ) )
{
if ( descNode != NULL && descNode->content.size() == 1 && descNode->content[ 0 ]->kind == kCDataNode && !XMP_LitMatch( descNode->content[ 0 ]->value.c_str(), description.c_str() ) )
isDescUpdateReq = true;
}
else
isDescUpdateReq = true;
}
// Initial Insertion/Updation
// Insert/Update Title if requires
// Don't insert/update it if Metadata or desc child comes before title child
bool isTitleWritten = !isTitleUpdateReq;
if ( isTitleUpdateReq )
{
// Insertion Case
if ( titleNode == NULL )
{
InsertNewTitle( tempRef, title );
isTitleWritten = true;
}
else if ( ( descOffset.startOffset == -1 || titleOffset.startOffset < descOffset.startOffset ) // Updation/Deletion Case
&& ( metadataOffset.startOffset == -1 || titleOffset.startOffset < metadataOffset.startOffset ) )
{
ProcessTitle( sourceRef, tempRef, title, currentOffset, titleOffset );
isTitleWritten = true;
}
}
// Insert/Update Description if requires
// Don't insert/update it if Metadata child comes before desc child
bool isDescWritten = !isDescUpdateReq;
if ( isDescUpdateReq )
{
if ( descNode == NULL )
{
if ( titleOffset.nextOffset != -1 )
{
XIO::Copy( sourceRef, tempRef, titleOffset.nextOffset - currentOffset );
currentOffset = titleOffset.nextOffset;
}
InsertNewDescription( tempRef, description );
isDescWritten = true;
}
else if ( metadataOffset.startOffset == -1 || descOffset.startOffset < metadataOffset.startOffset )
{
ProcessDescription( sourceRef, tempRef, description, currentOffset, descOffset );
isDescWritten = true;
}
}
// Insert/Update Metadata if requires
// Don't insert/update it if case is DTM
bool isMetadataWritten = false;
if ( metadataOffset.startOffset == -1 )
{
if ( descOffset.nextOffset != -1 )
{
XIO::Copy( sourceRef, tempRef, descOffset.nextOffset - currentOffset );
currentOffset = descOffset.nextOffset;
}
else if ( titleOffset.nextOffset != -1 )
{
XIO::Copy( sourceRef, tempRef, titleOffset.nextOffset - currentOffset );
currentOffset = titleOffset.nextOffset;
}
InsertNewMetadata( tempRef, this->xmpPacket );
isMetadataWritten = true;
}
else if ( !( !isTitleWritten && isDescWritten && titleOffset.startOffset < metadataOffset.startOffset ) ) // Not DTM
{
// No XMP packet was present in the file
if ( this->packetInfo.offset == kXMPFiles_UnknownOffset )
{
std::string metadataElement = "<metadata>";
XIO::Copy( sourceRef, tempRef, metadataOffset.startOffset - currentOffset + metadataElement.length() );
currentOffset = sourceRef->Offset();
tempRef->Write( this->xmpPacket.c_str(), static_cast< int >( this->xmpPacket.length() ) );
}
else // Replace XMP Packet
{
XIO::Copy( sourceRef, tempRef, this->packetInfo.offset - currentOffset );
tempRef->Write( this->xmpPacket.c_str(), static_cast< int >( this->xmpPacket.length() ) );
sourceRef->Seek( this->packetInfo.offset + this->packetInfo.length, kXMP_SeekFromStart );
currentOffset = sourceRef->Offset();
}
isMetadataWritten = true;
}
// If simple cases was followed then copy rest file
if ( isTitleWritten && isDescWritten && isMetadataWritten )
{
XIO::Copy( sourceRef, tempRef, ( sourceRef->Length() - currentOffset ) );
return;
}
// If the case is not Simple (TDM) then perform these operations
if ( isDescWritten ) // TDM, DTM, DMT
{
if ( !isTitleWritten ) // DTM, DMT
{
if ( titleOffset.startOffset < metadataOffset.startOffset ) // DTM
{
ProcessTitle( sourceRef, tempRef, title, currentOffset, titleOffset );
isTitleWritten = true;
if ( this->packetInfo.offset == kXMPFiles_UnknownOffset )
{
std::string metadataElement = "<metadata>";
XIO::Copy( sourceRef, tempRef, metadataOffset.startOffset - currentOffset + metadataElement.length() );
currentOffset = sourceRef->Offset();
tempRef->Write( this->xmpPacket.c_str(), static_cast< int >( this->xmpPacket.length() ) );
}
else
{
XIO::Copy( sourceRef, tempRef, this->packetInfo.offset - currentOffset );
tempRef->Write( this->xmpPacket.c_str(), static_cast< int >( this->xmpPacket.length() ) );
sourceRef->Seek( this->packetInfo.offset + this->packetInfo.length, kXMP_SeekFromStart );
currentOffset = sourceRef->Offset();
}
isMetadataWritten = true;
}
else // DMT
{
ProcessTitle( sourceRef, tempRef, title, currentOffset, titleOffset );
isTitleWritten = true;
}
}
// Else
// Would have already covered this case: TDM
}
else // TMD, MDT, MTD
{
if ( isTitleWritten ) // TMD
{
ProcessDescription( sourceRef, tempRef, description, currentOffset, descOffset );
isDescWritten = true;
}
else // MDT or MTD
{
if ( titleOffset.startOffset < descOffset.startOffset ) // MTD
{
ProcessTitle( sourceRef, tempRef, title, currentOffset, titleOffset );
isTitleWritten = true;
ProcessDescription( sourceRef, tempRef, description, currentOffset, descOffset );
isDescWritten = true;
}
else // MDT
{
ProcessDescription( sourceRef, tempRef, description, currentOffset, descOffset );
isDescWritten = true;
ProcessTitle( sourceRef, tempRef, title, currentOffset, titleOffset );
isTitleWritten = true;
}
}
}
// Finally Everything would have been written
XMP_Enforce( isTitleWritten && isDescWritten && isMetadataWritten );
XIO::Copy( sourceRef, tempRef, ( sourceRef->Length() - currentOffset ) );
this->needsUpdate = false;
} // SVG_MetaHandler::WriteTempFile
void SVG_MetaHandler::CacheFileData()
{
XMP_Assert( !this->containsXMP );
XMP_IO * fileRef = this->parent->ioRef;
XMP_Uns8 marker[ 4 ];
fileRef->Rewind();
fileRef->Read( marker, 4 );
// Checking for UTF-16 BOM and UTF-32 BOM
if ( ( marker[ 0 ] == 0xFF && marker[ 1 ] == 0xFE ) || ( marker[ 0 ] == 0xFE && marker[ 1 ] == 0xFF ) || ( marker[ 0 ] == marker[ 1 ] == 0x00 && marker[ 2 ] == 0xFE && marker[ 3 ] == 0xFF ) )
{
XMP_Error error( kXMPErr_BadXML, "Invalid SVG file" );
this->NotifyClient( &this->parent->errorCallback, kXMPErrSev_OperationFatal, error );
}
// Creating a new SVG Parser
svgAdapter = new SVG_Adapter();
if ( svgAdapter == 0 )
XMP_Throw( "SVG_MetaHandler: Can't create SVG adapter", kXMPErr_NoMemory );
svgAdapter->SetErrorCallback( &this->parent->errorCallback );
// Registering all the required tags to SVG Parser
svgAdapter->RegisterPI( "xpacket" );
svgAdapter->RegisterElement( "metadata", "svg" );
svgAdapter->RegisterElement( "xmpmeta", "metadata" );
svgAdapter->RegisterElement( "RDF", "metadata" );
svgAdapter->RegisterElement( "title", "svg" );
svgAdapter->RegisterElement( "desc", "svg" );
// Parsing the whole buffer
fileRef->Rewind();
XMP_Uns8 buffer[ 64 * 1024 ];
while ( true ) {
XMP_Int32 ioCount = fileRef->Read( buffer, sizeof( buffer ) );
if ( ioCount == 0 || !svgAdapter->IsParsingRequire() ) break;
svgAdapter->ParseBuffer( buffer, ioCount, false /* not the end */ );
}
svgAdapter->ParseBuffer( 0, 0, true ); // End the parse.
XML_Node & xmlTree = this->svgAdapter->tree;
XML_NodePtr rootElem = 0;
for ( size_t i = 0, limit = xmlTree.content.size(); i < limit; ++i )
{
if ( xmlTree.content[ i ]->kind == kElemNode ) {
rootElem = xmlTree.content[ i ];
}
}
if ( rootElem == 0 )
XMP_Throw( "Not a valid SVG File", kXMPErr_BadFileFormat );
XMP_StringPtr rootLocalName = rootElem->name.c_str() + rootElem->nsPrefixLen;
if ( ! XMP_LitMatch( rootLocalName, "svg" ) )
XMP_Throw( "Not able to parse such SVG File", kXMPErr_BadFileFormat );
// Making SVG node as Root Node
svgNode = rootElem;
bool FoundPI = false;
bool FoundWrapper = false;
XML_NodePtr metadataNode = svgNode->GetNamedElement( rootElem->ns.c_str(), "metadata" );
// We are intersted only in the Metadata tag of outer SVG element
// XMP should be present only in metadata Node of SVG
if ( metadataNode != NULL )
{
XMP_Int64 packetLength = -1;
XMP_Int64 packetOffset = -1;
XMP_Int64 PIOffset = svgAdapter->GetPIOffset( "xpacket", 1 );
OffsetStruct wrapperOffset = svgAdapter->GetElementOffsets( "xmpmeta" );
OffsetStruct rdfOffset = svgAdapter->GetElementOffsets( "RDF" );
// Checking XMP PI's position
if ( PIOffset != -1 )
{
if ( wrapperOffset.startOffset != -1 && wrapperOffset.startOffset < PIOffset )
packetOffset = wrapperOffset.startOffset;
else
{
XMP_Int64 trailerOffset = svgAdapter->GetPIOffset( "xpacket", 2 );
XML_NodePtr trailerNode = metadataNode->GetNamedElement( "", "xpacket", 1 );
if ( trailerOffset != -1 || trailerNode != 0 )
{
packetLength = 2; // "<?" = 2
packetLength += trailerNode->name.length(); // Node's name
packetLength += 1; // Empty Space after Node's name
packetLength += trailerNode->value.length(); // Value
packetLength += 2; // "?>" = 2
packetLength += ( trailerOffset - PIOffset );
packetOffset = PIOffset;
}
}
}
else if ( wrapperOffset.startOffset != -1 ) // XMP Wrapper is present without PI
{
XML_NodePtr wrapperNode = metadataNode->GetNamedElement( "adobe:ns:meta/", "xmpmeta" );
if ( wrapperNode != 0 )
{
std::string trailerWrapper = "</x:xmpmeta>";
packetLength = trailerWrapper.length();
packetLength += ( wrapperOffset.endOffset - wrapperOffset.startOffset );
packetOffset = wrapperOffset.startOffset;
}
}
else // RDF packet is present without PI and wrapper
{
XML_NodePtr rdfNode = metadataNode->GetNamedElement( "http://www.w3.org/1999/02/22-rdf-syntax-ns#", "RDF" );
if ( rdfNode != 0 )
{
std::string rdfTrailer = "</rdf:RDF>";
packetLength = rdfTrailer.length();
packetLength += ( rdfOffset.endOffset - rdfOffset.startOffset );
packetOffset = rdfOffset.startOffset;
}
}
// Fill the necesarry information and packet with XMP data
if ( packetOffset != -1 )
{
this->packetInfo.offset = packetOffset;
this->packetInfo.length = ( XMP_Int32 ) packetLength;
this->xmpPacket.assign( this->packetInfo.length, ' ' );
fileRef->Seek( packetOffset, kXMP_SeekFromStart );
fileRef->ReadAll( ( void* )this->xmpPacket.data(), this->packetInfo.length );
FillPacketInfo( this->xmpPacket, &this->packetInfo );
this->containsXMP = true;
return;
}
}
this->containsXMP = false;
} // SVG_MetaHandler::CacheFileData
void PSD_MetaHandler::WriteTempFile ( XMP_IO* tempRef )
{
XMP_IO* origRef = this->parent->ioRef;
XMP_AbortProc abortProc = this->parent->abortProc;
void * abortArg = this->parent->abortArg;
const bool checkAbort = (abortProc != 0);
XMP_ProgressTracker* progressTracker = this->parent->progressTracker;
XMP_Uns64 sourceLen = origRef->Length();
if ( sourceLen == 0 ) return; // Tolerate empty files.
// Reconcile the legacy metadata, unless this is called from UpdateFile. Reserialize the XMP to
// get standard padding, PutXMP has probably done an in-place serialize. Set the XMP image resource.
if ( ! skipReconcile ) {
// Update the IPTC-IIM and native TIFF/Exif metadata, and reserialize the now final XMP packet.
ExportPhotoData ( kXMP_JPEGFile, &this->xmpObj, this->exifMgr, this->iptcMgr, &this->psirMgr );
this->xmpObj.SerializeToBuffer ( &this->xmpPacket, kXMP_UseCompactFormat );
}
this->xmpObj.SerializeToBuffer ( &this->xmpPacket, kXMP_UseCompactFormat );
this->packetInfo.offset = kXMPFiles_UnknownOffset;
this->packetInfo.length = (XMP_StringLen)this->xmpPacket.size();
FillPacketInfo ( this->xmpPacket, &this->packetInfo );
this->psirMgr.SetImgRsrc ( kPSIR_XMP, this->xmpPacket.c_str(), (XMP_StringLen)this->xmpPacket.size() );
// Calculate the total writes I/O to be done by this method. This includes header section, color
// mode section and tail length after the image resources section. The write I/O for image
// resources section is added to total work in PSIR_FileWriter::UpdateFileResources.
origRef->Seek ( 26, kXMP_SeekFromStart ); //move to the point after Header 26 is the header length
XMP_Uns32 cmLen,cmLen1;
origRef->Read ( &cmLen, 4 ); // get the length of color mode section
cmLen1 = GetUns32BE ( &cmLen );
origRef->Seek ( cmLen1, kXMP_SeekFromCurrent ); //move to the end of color mode section
XMP_Uns32 irLen;
origRef->Read ( &irLen, 4 ); // Get the source image resource section length.
irLen = GetUns32BE ( &irLen );
XMP_Uns64 tailOffset = 26 + 4 + cmLen1 + 4 + irLen;
XMP_Uns64 tailLength = sourceLen - tailOffset;
// Add work for 26 bytes header, 4 bytes color mode section length, color mode section length
// and tail length after the image resources section length.
if ( progressTracker != 0 ) progressTracker->BeginWork ( (float)(26.0f + 4.0f + cmLen1 + tailLength) );
// Copy the file header and color mode section, then write the updated image resource section,
// and copy the tail of the source file (layer and mask section to EOF).
origRef->Rewind ( );
tempRef->Truncate ( 0 );
XIO::Copy ( origRef, tempRef, 26 ); // Copy the file header.
origRef->Seek ( 4, kXMP_SeekFromCurrent );
tempRef->Write ( &cmLen, 4 ); // Copy the color mode section length.
XIO::Copy ( origRef, tempRef, cmLen1 ); // Copy the color mode section contents.
this->psirMgr.UpdateFileResources ( origRef, tempRef, abortProc, abortArg ,progressTracker );
origRef->Seek ( tailOffset, kXMP_SeekFromStart );
tempRef->Seek ( 0, kXMP_SeekFromEnd );
XIO::Copy ( origRef, tempRef, tailLength ); // Copy the tail of the file.
this->needsUpdate = false;
if ( progressTracker != 0 ) progressTracker->WorkComplete();
} // PSD_MetaHandler::WriteTempFile
void Scanner_MetaHandler::CacheFileData()
{
XMP_IO* fileRef = this->parent->ioRef;
bool beLenient = XMP_OptionIsClear ( this->parent->openFlags, kXMPFiles_OpenStrictly );
int pkt;
XMP_Int64 bufPos;
size_t bufLen;
SXMPMeta * newMeta;
XMP_AbortProc abortProc = this->parent->abortProc;
void * abortArg = this->parent->abortArg;
const bool checkAbort = (abortProc != 0);
std::vector<CandidateInfo> candidates; // ! These have SXMPMeta* fields, don't leak on exceptions.
this->containsXMP = false;
try {
// ------------------------------------------------------
// Scan the entire file to find all of the valid packets.
XMP_Int64 fileLen = fileRef->Length();
XMPScanner scanner ( fileLen );
enum { kBufferSize = 64*1024 };
XMP_Uns8 buffer [kBufferSize];
fileRef->Rewind();
for ( bufPos = 0; bufPos < fileLen; bufPos += bufLen ) {
if ( checkAbort && abortProc(abortArg) ) {
XMP_Throw ( "Scanner_MetaHandler::LocateXMP - User abort", kXMPErr_UserAbort );
}
bufLen = fileRef->Read ( buffer, kBufferSize );
if ( bufLen == 0 ) XMP_Throw ( "Scanner_MetaHandler::LocateXMP: Read failure", kXMPErr_ExternalFailure );
scanner.Scan ( buffer, bufPos, bufLen );
}
// --------------------------------------------------------------
// Parse the valid packet snips, building a vector of candidates.
long snipCount = scanner.GetSnipCount();
XMPScanner::SnipInfoVector snips ( snipCount );
scanner.Report ( snips );
for ( pkt = 0; pkt < snipCount; ++pkt ) {
if ( checkAbort && abortProc(abortArg) ) {
XMP_Throw ( "Scanner_MetaHandler::LocateXMP - User abort", kXMPErr_UserAbort );
}
// Seek to the packet then try to parse it.
if ( snips[pkt].fState != XMPScanner::eValidPacketSnip ) continue;
fileRef->Seek ( snips[pkt].fOffset, kXMP_SeekFromStart );
newMeta = new SXMPMeta();
std::string xmpPacket;
xmpPacket.reserve ( (size_t)snips[pkt].fLength );
try {
for ( bufPos = 0; bufPos < snips[pkt].fLength; bufPos += bufLen ) {
bufLen = kBufferSize;
if ( (bufPos + bufLen) > (size_t)snips[pkt].fLength ) bufLen = size_t ( snips[pkt].fLength - bufPos );
(void) fileRef->ReadAll ( buffer, (XMP_Int32)bufLen );
xmpPacket.append ( (const char *)buffer, bufLen );
newMeta->ParseFromBuffer ( (char *)buffer, (XMP_StringLen)bufLen, kXMP_ParseMoreBuffers );
}
newMeta->ParseFromBuffer ( 0, 0, kXMP_NoOptions );
} catch ( ... ) {
delete newMeta;
if ( beLenient ) continue; // Skip if we're being lenient, else rethrow.
throw;
}
// It parsed OK, add it to the array of candidates.
candidates.push_back ( CandidateInfo() );
CandidateInfo & newInfo = candidates.back();
newInfo.xmpObj = newMeta;
newInfo.xmpPacket.swap ( xmpPacket );
newInfo.packetInfo.offset = snips[pkt].fOffset;
newInfo.packetInfo.length = (XMP_Int32)snips[pkt].fLength;
newInfo.packetInfo.charForm = snips[pkt].fCharForm;
newInfo.packetInfo.writeable = (snips[pkt].fAccess == 'w');
}
// ----------------------------------------
// Figure out which packet is the main one.
int main = PickMainPacket ( candidates, beLenient );
if ( main != -1 ) {
this->packetInfo = candidates[main].packetInfo;
this->xmpPacket.swap ( candidates[main].xmpPacket );
this->xmpObj = *candidates[main].xmpObj;
this->containsXMP = true;
this->processedXMP = true;
}
for ( pkt = 0; pkt < (int)candidates.size(); ++pkt ) {
if ( candidates[pkt].xmpObj != 0 ) delete candidates[pkt].xmpObj;
}
} catch ( ... ) {
// Clean up the SXMPMeta* fields from the vector of candidates.
for ( pkt = 0; pkt < (int)candidates.size(); ++pkt ) {
if ( candidates[pkt].xmpObj != 0 ) delete candidates[pkt].xmpObj;
}
throw;
}
} // Scanner_MetaHandler::CacheFileData
void JPEG_MetaHandler::WriteTempFile ( XMP_IO* tempRef )
{
XMP_IO* origRef = this->parent->ioRef;
XMP_AbortProc abortProc = this->parent->abortProc;
void * abortArg = this->parent->abortArg;
const bool checkAbort = (abortProc != 0);
XMP_Uns16 marker, contentLen;
static const size_t kBufferSize = 64*1024; // Enough for a segment with maximum contents.
XMP_Uns8 buffer [kBufferSize];
XMP_Int64 origLength = origRef->Length();
if ( origLength == 0 ) return; // Tolerate empty files.
if ( origLength < 4 ) {
XMP_Throw ( "JPEG must have at least SOI and EOI markers", kXMPErr_BadJPEG );
}
if ( ! skipReconcile ) {
// Update the IPTC-IIM and native TIFF/Exif metadata, and reserialize the now final XMP packet.
ExportPhotoData ( kXMP_JPEGFile, &this->xmpObj, this->exifMgr, this->iptcMgr, this->psirMgr );
this->xmpObj.SerializeToBuffer ( &this->xmpPacket, kXMP_UseCompactFormat );
}
origRef->Rewind();
tempRef->Truncate ( 0 );
marker = XIO::ReadUns16_BE ( origRef ); // Just read the SOI marker.
if ( marker != 0xFFD8 ) XMP_Throw ( "Missing SOI marker", kXMPErr_BadJPEG );
XIO::WriteUns16_BE ( tempRef, marker );
// Copy any leading APP0 marker segments.
while ( true ) {
if ( checkAbort && abortProc(abortArg) ) {
XMP_Throw ( "JPEG_MetaHandler::WriteFile - User abort", kXMPErr_UserAbort );
}
if ( ! XIO::CheckFileSpace ( origRef, 2 ) ) break; // Tolerate a file that ends abruptly.
marker = XIO::ReadUns16_BE ( origRef ); // Read the next marker.
if ( marker == 0xFFFF ) {
// Have a pad byte, skip it. These are almost unheard of, so efficiency isn't critical.
origRef->Seek ( -1, kXMP_SeekFromCurrent ); // Skip the first 0xFF, read the second again.
continue;
}
if ( marker != 0xFFE0 ) break; // Have a non-APP0 marker.
XIO::WriteUns16_BE ( tempRef, marker ); // Write the APP0 marker.
contentLen = XIO::ReadUns16_BE ( origRef ); // Copy the APP0 segment's length.
XIO::WriteUns16_BE ( tempRef, contentLen );
if ( contentLen < 2 ) XMP_Throw ( "Invalid JPEG segment length", kXMPErr_BadJPEG );
contentLen -= 2; // Reduce to just the content length.
origRef->ReadAll ( buffer, contentLen ); // Copy the APP0 segment's content.
tempRef->Write ( buffer, contentLen );
}
// Write the new Exif APP1 marker segment.
XMP_Uns32 first4;
if ( this->exifMgr != 0 ) {
void* exifPtr;
XMP_Uns32 exifLen = this->exifMgr->UpdateMemoryStream ( &exifPtr );
if ( exifLen > kExifMaxDataLength ) exifLen = this->exifMgr->UpdateMemoryStream ( &exifPtr, true /* compact */ );
while ( exifLen > 0 ) {
XMP_Uns32 count = std::min ( exifLen, (XMP_Uns32) kExifMaxDataLength );
first4 = MakeUns32BE ( 0xFFE10000 + 2 + kExifSignatureLength + count );
tempRef->Write ( &first4, 4 );
tempRef->Write ( kExifSignatureString, kExifSignatureLength );
tempRef->Write ( exifPtr, count );
exifPtr = (XMP_Uns8 *) exifPtr + count;
exifLen -= count;
}
}
// Write the new XMP APP1 marker segment, with possible extension marker segments.
std::string mainXMP, extXMP, extDigest;
SXMPUtils::PackageForJPEG ( this->xmpObj, &mainXMP, &extXMP, &extDigest );
XMP_Assert ( (extXMP.size() == 0) || (extDigest.size() == 32) );
first4 = MakeUns32BE ( 0xFFE10000 + 2 + kMainXMPSignatureLength + (XMP_Uns32)mainXMP.size() );
tempRef->Write ( &first4, 4 );
tempRef->Write ( kMainXMPSignatureString, kMainXMPSignatureLength );
tempRef->Write ( mainXMP.c_str(), (XMP_Int32)mainXMP.size() );
size_t extPos = 0;
size_t extLen = extXMP.size();
while ( extLen > 0 ) {
size_t partLen = extLen;
if ( partLen > 65000 ) partLen = 65000;
first4 = MakeUns32BE ( 0xFFE10000 + 2 + kExtXMPPrefixLength + (XMP_Uns32)partLen );
tempRef->Write ( &first4, 4 );
tempRef->Write ( kExtXMPSignatureString, kExtXMPSignatureLength );
tempRef->Write ( extDigest.c_str(), (XMP_Int32)extDigest.size() );
first4 = MakeUns32BE ( (XMP_Int32)extXMP.size() );
tempRef->Write ( &first4, 4 );
first4 = MakeUns32BE ( (XMP_Int32)extPos );
tempRef->Write ( &first4, 4 );
tempRef->Write ( &extXMP[extPos], (XMP_Int32)partLen );
extPos += partLen;
extLen -= partLen;
}
// Write the new PSIR APP13 marker segments.
if ( this->psirMgr != 0 ) {
void* psirPtr;
XMP_Uns32 psirLen = this->psirMgr->UpdateMemoryResources ( &psirPtr );
while ( psirLen > 0 ) {
XMP_Uns32 count = std::min ( psirLen, (XMP_Uns32) kPSIRMaxDataLength );
first4 = MakeUns32BE ( 0xFFED0000 + 2 + kPSIRSignatureLength + count );
tempRef->Write ( &first4, 4 );
tempRef->Write ( kPSIRSignatureString, kPSIRSignatureLength );
tempRef->Write ( psirPtr, count );
psirPtr = (XMP_Uns8 *) psirPtr + count;
psirLen -= count;
}
}
// Copy remaining marker segments, skipping old metadata, to the first SOS marker or to EOI.
origRef->Seek ( -2, kXMP_SeekFromCurrent ); // Back up to the marker from the end of the APP0 copy loop.
while ( true ) {
if ( checkAbort && abortProc(abortArg) ) {
XMP_Throw ( "JPEG_MetaHandler::WriteFile - User abort", kXMPErr_UserAbort );
}
if ( ! XIO::CheckFileSpace ( origRef, 2 ) ) break; // Tolerate a file that ends abruptly.
marker = XIO::ReadUns16_BE ( origRef ); // Read the next marker.
if ( marker == 0xFFFF ) {
// Have a pad byte, skip it. These are almost unheard of, so efficiency isn't critical.
origRef->Seek ( -1, kXMP_SeekFromCurrent ); // Skip the first 0xFF, read the second again.
continue;
}
if ( (marker == 0xFFDA) || (marker == 0xFFD9) ) { // Quit at the first SOS marker or at EOI.
origRef->Seek ( -2, kXMP_SeekFromCurrent ); // The tail copy must include this marker.
break;
}
if ( (marker == 0xFF01) || // Ill-formed file if we encounter a TEM or RSTn marker.
((0xFFD0 <= marker) && (marker <= 0xFFD7)) ) {
XMP_Throw ( "Unexpected TEM or RSTn marker", kXMPErr_BadJPEG );
}
contentLen = XIO::ReadUns16_BE ( origRef ); // Read this segment's length.
if ( contentLen < 2 ) XMP_Throw ( "Invalid JPEG segment length", kXMPErr_BadJPEG );
contentLen -= 2; // Reduce to just the content length.
XMP_Int64 contentOrigin = origRef->Offset();
bool copySegment = true;
size_t signatureLen;
if ( (marker == 0xFFED) && (contentLen >= kPSIRSignatureLength) ) {
// This is an APP13 segment, skip if it is the old PSIR.
signatureLen = origRef->Read ( buffer, kPSIRSignatureLength );
if ( (signatureLen == kPSIRSignatureLength) &&
CheckBytes ( &buffer[0], kPSIRSignatureString, kPSIRSignatureLength ) ) {
copySegment = false;
}
} else if ( (marker == 0xFFE1) && (contentLen >= kExifSignatureLength) ) { // Check for the shortest signature.
// This is an APP1 segment, skip if it is the old Exif or XMP.
XMP_Assert ( (kExifSignatureLength < kMainXMPSignatureLength) &&
(kMainXMPSignatureLength < kExtXMPSignatureLength) );
signatureLen = origRef->Read ( buffer, kExtXMPSignatureLength ); // Read for the longest signature.
if ( (signatureLen >= kExifSignatureLength) &&
(CheckBytes ( &buffer[0], kExifSignatureString, kExifSignatureLength ) ||
CheckBytes ( &buffer[0], kExifSignatureAltStr, kExifSignatureLength )) ) {
copySegment = false;
}
if ( copySegment && (signatureLen >= kMainXMPSignatureLength) &&
CheckBytes ( &buffer[0], kMainXMPSignatureString, kMainXMPSignatureLength ) ) {
copySegment = false;
}
if ( copySegment && (signatureLen == kExtXMPSignatureLength) &&
CheckBytes ( &buffer[0], kExtXMPSignatureString, kExtXMPPrefixLength ) ) {
copySegment = false;
}
}
if ( ! copySegment ) {
origRef->Seek ( (contentOrigin + contentLen), kXMP_SeekFromStart );
} else {
XIO::WriteUns16_BE ( tempRef, marker );
XIO::WriteUns16_BE ( tempRef, (contentLen + 2) );
origRef->Seek ( contentOrigin, kXMP_SeekFromStart );
origRef->ReadAll ( buffer, contentLen );
tempRef->Write ( buffer, contentLen );
}
}
// Copy the remainder of the source file.
XIO::Copy ( origRef, tempRef, (origLength - origRef->Offset()) );
this->needsUpdate = false;
} // JPEG_MetaHandler::WriteTempFile
void MP3_MetaHandler::CacheFileData()
{
//*** abort procedures
this->containsXMP = false; //assume no XMP for now
XMP_IO* file = this->parent->ioRef;
XMP_PacketInfo &packetInfo = this->packetInfo;
file->Rewind();
this->hasID3Tag = this->id3Header.read( file );
this->majorVersion = this->id3Header.fields[ID3Header::o_vMajor];
this->minorVersion = this->id3Header.fields[ID3Header::o_vMinor];
this->hasExtHeader = (0 != ( 0x40 & this->id3Header.fields[ID3Header::o_flags])); //'naturally' false if no ID3Tag
this->hasFooter = ( 0 != ( 0x10 & this->id3Header.fields[ID3Header::o_flags])); //'naturally' false if no ID3Tag
// stored size is w/o initial header (thus adding 10)
// + but extended header (if existing)
// + padding + frames after unsynchronisation (?)
// (if no ID3 tag existing, constructed default correctly sets size to 10.)
this->oldTagSize = ID3Header::kID3_TagHeaderSize + synchToInt32(GetUns32BE( &id3Header.fields[ID3Header::o_size] ));
if ( ! hasExtHeader ) {
this->extHeaderSize = 0; // := there is no such header.
} else {
this->extHeaderSize = synchToInt32( XIO::ReadInt32_BE( file));
XMP_Uns8 extHeaderNumFlagBytes = XIO::ReadUns8( file );
// v2.3 doesn't include the size, while v2.4 does
if ( this->majorVersion < 4 ) this->extHeaderSize += 4;
XMP_Validate( this->extHeaderSize >= 6, "extHeader size too small", kXMPErr_BadFileFormat );
file->Seek ( this->extHeaderSize - 6, kXMP_SeekFromCurrent );
}
this->framesVector.clear(); //mac precaution
ID3v2Frame* curFrame = 0; // reusable
////////////////////////////////////////////////////
// read frames
XMP_Uns32 xmpID = XMP_V23_ID;
if ( this->majorVersion == 2 ) xmpID = XMP_V22_ID;
while ( file->Offset() < this->oldTagSize ) {
curFrame = new ID3v2Frame();
try {
XMP_Int64 frameSize = curFrame->read ( file, this->majorVersion );
if ( frameSize == 0 ) {
delete curFrame; // ..since not becoming part of vector for latter delete.
break; // not a throw. There's nothing wrong with padding.
}
this->containsXMP = true;
} catch ( ... ) {
delete curFrame;
throw;
}
// these are both pointer assignments, no (copy) construction
// (MemLeak Note: for all things pushed, memory cleanup is taken care of in destructor.)
this->framesVector.push_back ( curFrame );
//remember XMP-Frame, if it occurs:
if ( (curFrame->id ==xmpID) &&
(curFrame->contentSize > 8) && CheckBytes ( &curFrame->content[0], "XMP\0", 4 ) ) {
// be sure that this is the first packet (all else would be illegal format)
XMP_Validate ( this->framesMap[xmpID] == 0, "two XMP packets in one file", kXMPErr_BadFileFormat );
//add this to map, needed on reconciliation
this->framesMap[xmpID] = curFrame;
this->packetInfo.length = curFrame->contentSize - 4; // content minus "XMP\0"
this->packetInfo.offset = ( file->Offset() - this->packetInfo.length );
this->xmpPacket.erase(); //safety
this->xmpPacket.assign( &curFrame->content[4], curFrame->contentSize - 4 );
this->containsXMP = true; // do this last, after all possible failure
}
// No space for another frame? => assume into ID3v2.4 padding.
XMP_Int64 newPos = file->Offset();
XMP_Int64 spaceLeft = this->oldTagSize - newPos; // Depends on first check below!
if ( (newPos > this->oldTagSize) || (spaceLeft < (XMP_Int64)ID3Header::kID3_TagHeaderSize) ) break;
}
////////////////////////////////////////////////////
// padding
this->oldPadding = this->oldTagSize - file->Offset();
this->oldFramesSize = this->oldTagSize - ID3Header::kID3_TagHeaderSize - this->oldPadding;
XMP_Validate ( (this->oldPadding >= 0), "illegal oldTagSize or padding value", kXMPErr_BadFileFormat );
for ( XMP_Int64 i = this->oldPadding; i > 0; ) {
if ( i >= 8 ) {
if ( XIO::ReadInt64_BE(file) != 0 ) XMP_Throw ( "padding not nulled out", kXMPErr_BadFileFormat );
i -= 8;
continue;
}
if ( XIO::ReadUns8(file) != 0) XMP_Throw ( "padding(2) not nulled out", kXMPErr_BadFileFormat );
i--;
}
//// read ID3v1 tag
if ( ! this->containsXMP ) this->containsXMP = id3v1Tag.read ( file, &this->xmpObj );
} // MP3_MetaHandler::CacheFileData
void InDesign_MetaHandler::CacheFileData()
{
XMP_IO* fileRef = this->parent->ioRef;
XMP_PacketInfo & packetInfo = this->packetInfo;
XMP_Assert ( kINDD_PageSize == sizeof(InDesignMasterPage) );
static const size_t kBufferSize = (2 * kINDD_PageSize);
XMP_Uns8 buffer [kBufferSize];
size_t dbPages;
XMP_Uns8 cobjEndian;
XMP_AbortProc abortProc = this->parent->abortProc;
void * abortArg = this->parent->abortArg;
const bool checkAbort = (abortProc != 0);
this->containsXMP = false;
// ---------------------------------------------------------------------------------
// Figure out which master page is active and seek to the contiguous object portion.
{
fileRef->Rewind();
fileRef->ReadAll ( buffer, (2 * kINDD_PageSize) );
InDesignMasterPage * masters = (InDesignMasterPage *) &buffer[0];
XMP_Uns64 seq0 = GetUns64LE ( (XMP_Uns8 *) &masters[0].fSequenceNumber );
XMP_Uns64 seq1 = GetUns64LE ( (XMP_Uns8 *) &masters[1].fSequenceNumber );
dbPages = GetUns32LE ( (XMP_Uns8 *) &masters[0].fFilePages );
cobjEndian = masters[0].fObjectStreamEndian;
if ( seq1 > seq0 ) {
dbPages = GetUns32LE ( (XMP_Uns8 *) &masters[1].fFilePages );
cobjEndian = masters[1].fObjectStreamEndian;
}
}
XMP_Assert ( ! this->streamBigEndian );
if ( cobjEndian == kINDD_BigEndian ) this->streamBigEndian = true;
// ---------------------------------------------------------------------------------------------
// Look for the XMP contiguous object. Each contiguous object has a header and trailer, both of
// the InDesignContigObjMarker structure. The stream size in the header/trailer is the number of
// data bytes between the header and trailer. The XMP stream begins with a 4 byte size of the
// XMP packet. Yes, this is the contiguous object data size minus 4 - silly but true. The XMP
// must have a packet wrapper, the leading xpacket PI is used as the marker of XMP.
XMP_Int64 cobjPos = (XMP_Int64)dbPages * kINDD_PageSize; // ! Use a 64 bit multiply!
cobjPos -= (2 * sizeof(InDesignContigObjMarker)); // ! For the first pass in the loop.
XMP_Uns32 streamLength = 0; // ! For the first pass in the loop.
while ( true ) {
if ( checkAbort && abortProc(abortArg) ) {
XMP_Throw ( "InDesign_MetaHandler::LocateXMP - User abort", kXMPErr_UserAbort );
}
// Fetch the start of the next stream and check the contiguous object header.
// ! The writeable bit of fObjectClassID is ignored, we use the packet trailer flag.
cobjPos += streamLength + (2 * sizeof(InDesignContigObjMarker));
fileRef->Seek ( cobjPos, kXMP_SeekFromStart );
fileRef->ReadAll ( buffer, sizeof(InDesignContigObjMarker) );
const InDesignContigObjMarker * cobjHeader = (const InDesignContigObjMarker *) &buffer[0];
if ( ! CheckBytes ( Uns8Ptr(&cobjHeader->fGUID), kINDDContigObjHeaderGUID, kInDesignGUIDSize ) ) break; // Not a contiguous object header.
this->xmpObjID = cobjHeader->fObjectUID; // Save these now while the buffer is good.
this->xmpClassID = cobjHeader->fObjectClassID;
streamLength = GetUns32LE ( (XMP_Uns8 *) &cobjHeader->fStreamLength );
// See if this is the XMP stream.
if ( streamLength < (4 + kUTF8_PacketHeaderLen + kUTF8_PacketTrailerLen) ) continue; // Too small, can't possibly be XMP.
fileRef->ReadAll ( buffer, (4 + kUTF8_PacketHeaderLen) );
XMP_Uns32 innerLength = GetUns32LE ( &buffer[0] );
if ( this->streamBigEndian ) innerLength = GetUns32BE ( &buffer[0] );
if ( innerLength != (streamLength - 4) ) {
// Be tolerant of a mistake with the endian flag.
innerLength = Flip4 ( innerLength );
if ( innerLength != (streamLength - 4) ) continue; // Not legit XMP.
}
XMP_Uns8 * chPtr = &buffer[4];
size_t startLen = strlen((char*)kUTF8_PacketStart);
size_t idLen = strlen((char*)kUTF8_PacketID);
if ( ! CheckBytes ( chPtr, kUTF8_PacketStart, startLen ) ) continue;
chPtr += startLen;
XMP_Uns8 quote = *chPtr;
if ( (quote != '\'') && (quote != '"') ) continue;
chPtr += 1;
if ( *chPtr != quote ) {
if ( ! CheckBytes ( chPtr, Uns8Ptr("\xEF\xBB\xBF"), 3 ) ) continue;
chPtr += 3;
}
if ( *chPtr != quote ) continue;
chPtr += 1;
if ( ! CheckBytes ( chPtr, Uns8Ptr(" id="), 4 ) ) continue;
chPtr += 4;
quote = *chPtr;
if ( (quote != '\'') && (quote != '"') ) continue;
chPtr += 1;
if ( ! CheckBytes ( chPtr, kUTF8_PacketID, idLen ) ) continue;
chPtr += idLen;
if ( *chPtr != quote ) continue;
chPtr += 1;
// We've seen enough, it is the XMP. To fit the Basic_Handler model we need to compute the
// total size of remaining contiguous objects, the trailingContentSize. We don't use the
// size to EOF, that would wrongly include the final zero padding for 4KB alignment.
this->xmpPrefixSize = sizeof(InDesignContigObjMarker) + 4;
this->xmpSuffixSize = sizeof(InDesignContigObjMarker);
packetInfo.offset = cobjPos + this->xmpPrefixSize;
packetInfo.length = innerLength;
XMP_Int64 tcStart = cobjPos + streamLength + (2 * sizeof(InDesignContigObjMarker));
while ( true ) {
if ( checkAbort && abortProc(abortArg) ) {
XMP_Throw ( "InDesign_MetaHandler::LocateXMP - User abort", kXMPErr_UserAbort );
}
cobjPos += streamLength + (2 * sizeof(InDesignContigObjMarker));
XMP_Uns32 len = fileRef->Read ( buffer, sizeof(InDesignContigObjMarker) );
if ( len < sizeof(InDesignContigObjMarker) ) break; // Too small, must be end of file.
cobjHeader = (const InDesignContigObjMarker *) &buffer[0];
if ( ! CheckBytes ( Uns8Ptr(&cobjHeader->fGUID), kINDDContigObjHeaderGUID, kInDesignGUIDSize ) ) break; // Not a contiguous object header.
streamLength = GetUns32LE ( (XMP_Uns8 *) &cobjHeader->fStreamLength );
}
this->trailingContentSize = cobjPos - tcStart;
#if TraceInDesignHandler
XMP_Uns32 pktOffset = (XMP_Uns32)this->packetInfo.offset;
printf ( "Found XMP in InDesign file, offsets:\n" );
printf ( " CObj head %X, XMP %X, CObj tail %X, file tail %X, padding %X\n",
(pktOffset - this->xmpPrefixSize), pktOffset, (pktOffset + this->packetInfo.length),
(pktOffset + this->packetInfo.length + this->xmpSuffixSize),
(pktOffset + this->packetInfo.length + this->xmpSuffixSize + (XMP_Uns32)this->trailingContentSize) );
#endif
this->containsXMP = true;
break;
}
if ( this->containsXMP ) {
this->xmpFileOffset = packetInfo.offset;
this->xmpFileSize = packetInfo.length;
ReadXMPPacket ( this );
}
} // InDesign_MetaHandler::CacheFileData
void FLV_MetaHandler::WriteTempFile ( XMP_IO* tempRef )
{
if ( ! this->needsUpdate ) return;
XMP_AbortProc abortProc = this->parent->abortProc;
void * abortArg = this->parent->abortArg;
const bool checkAbort = (abortProc != 0);
XMP_IO* originalRef = this->parent->ioRef;
XMP_Uns64 sourceLen = originalRef->Length();
XMP_Uns64 sourcePos = 0;
originalRef->Rewind();
tempRef->Rewind();
tempRef->Truncate ( 0 );
XMP_ProgressTracker* progressTracker = this->parent->progressTracker;
if ( progressTracker != 0 ) {
float fileSize=(float)(this->xmpPacket.size()+48);
if ( this->omdTagPos == 0 ) {
sourcePos=(this->flvHeaderLen+4);
fileSize+=sourcePos;
} else {
if ( this->xmpTagPos < this->omdTagPos ) {
fileSize+=this->xmpTagPos;
}
fileSize+=(this->omdTagPos + this->omdTagLen-
((this->xmpTagPos!=0 && this->xmpTagPos < this->omdTagPos)?
(this->xmpTagPos + this->xmpTagLen):0));
sourcePos =this->omdTagPos + this->omdTagLen;
}
if ( (this->xmpTagPos != 0) && (this->xmpTagPos >= sourcePos) ) {
fileSize+=(this->xmpTagPos - sourcePos);
sourcePos=this->xmpTagPos + this->xmpTagLen;
}
fileSize+=(sourceLen - sourcePos);
sourcePos=0;
progressTracker->BeginWork ( fileSize );
}
// First do whatever is needed to put the new XMP after any existing onMetaData tag, or as the
// first time 0 tag.
if ( this->omdTagPos == 0 ) {
// There is no onMetaData tag. Copy the file header, then write the new XMP as the first tag.
// Allow the degenerate case of a file with just a header, no initial back pointer or tags.
originalRef->Seek ( sourcePos, kXMP_SeekFromStart );
XIO::Copy ( originalRef, tempRef, this->flvHeaderLen, abortProc, abortArg );
XMP_Uns32 zero = 0; // Ensure that the initial back offset really is zero.
tempRef->Write ( &zero, 4 );
sourcePos = this->flvHeaderLen + 4;
WriteOnXMP ( tempRef, this->xmpPacket );
} else {
// There is an onMetaData tag. Copy the front of the file through the onMetaData tag,
// skipping any XMP that happens to be in the way. The XMP should not be before onMetaData,
// but let's be robust. Write the new XMP immediately after onMetaData, at the same time.
XMP_Uns64 omdEnd = this->omdTagPos + this->omdTagLen;
if ( (this->xmpTagPos != 0) && (this->xmpTagPos < this->omdTagPos) ) {
// The XMP tag was in front of the onMetaData tag. Copy up to it, then skip it.
originalRef->Seek ( sourcePos, kXMP_SeekFromStart );
XIO::Copy ( originalRef, tempRef, this->xmpTagPos, abortProc, abortArg );
sourcePos = this->xmpTagPos + this->xmpTagLen; // The tag length includes the trailing size field.
}
// Copy through the onMetaData tag, then write the XMP.
originalRef->Seek ( sourcePos, kXMP_SeekFromStart );
XIO::Copy ( originalRef, tempRef, (omdEnd - sourcePos), abortProc, abortArg );
sourcePos = omdEnd;
WriteOnXMP ( tempRef, this->xmpPacket );
}
// Copy the rest of the file, skipping any XMP that is in the way.
if ( (this->xmpTagPos != 0) && (this->xmpTagPos >= sourcePos) ) {
originalRef->Seek ( sourcePos, kXMP_SeekFromStart );
XIO::Copy ( originalRef, tempRef, (this->xmpTagPos - sourcePos), abortProc, abortArg );
sourcePos = this->xmpTagPos + this->xmpTagLen;
}
originalRef->Seek ( sourcePos, kXMP_SeekFromStart );
XIO::Copy ( originalRef, tempRef, (sourceLen - sourcePos), abortProc, abortArg );
this->needsUpdate = false;
if ( progressTracker != 0 ) progressTracker->WorkComplete();
} // FLV_MetaHandler::WriteTempFile
