// =================================================================================================
// P2_MetaHandler::SetXMPPropertyFromLegacyXML
// ===========================================
void P2_MetaHandler::SetXMPPropertyFromLegacyXML ( bool /*digestFound*/,
XML_NodePtr legacyContext,
XMP_StringPtr schemaNS,
XMP_StringPtr propName,
XMP_StringPtr legacyPropName,
bool isLocalized )
{
XMP_StringPtr p2NS = this->p2ClipManager.GetManagedClip()->GetP2RootNode()->ns.c_str();
XML_NodePtr legacyProp = legacyContext->GetNamedElement ( p2NS, legacyPropName );
if ( (legacyProp != 0) && legacyProp->IsLeafContentNode() ) {
XMP_StringPtr legacyValue = legacyProp->GetLeafContentValue();
if ( ( legacyValue != 0 ) &&
( ( *legacyValue != 0 ) || (! this->xmpObj.DoesPropertyExist ( schemaNS, propName )) )) {
if ( isLocalized ) {
this->xmpObj.SetLocalizedText ( schemaNS, propName, "", "x-default", legacyValue, kXMP_DeleteExisting );
} else {
this->xmpObj.SetProperty ( schemaNS, propName, legacyValue, kXMP_DeleteExisting );
}
this->containsXMP = true;
}
}
}
void P2_MetaHandler::SetAltitudeFromLegacyXML ( XML_NodePtr legacyLocationContext, bool digestFound )
{
if ( digestFound || (! this->xmpObj.DoesPropertyExist ( kXMP_NS_EXIF, "GPSAltitude" )) ) {
P2_Clip* p2Clip = this->p2ClipManager.GetManagedClip() ;
XMP_StringPtr p2NS = p2Clip->GetP2RootNode()->ns.c_str();
XML_NodePtr legacyAltitudeProp = legacyLocationContext->GetNamedElement ( p2NS, "Altitude" );
if ( ( legacyAltitudeProp != 0 ) && legacyAltitudeProp->IsLeafContentNode() ) {
this->xmpObj.DeleteProperty ( kXMP_NS_EXIF, "GPSAltitude" );
const std::string legacyGPSValue = legacyAltitudeProp->GetLeafContentValue();
if ( ! legacyGPSValue.empty() ) {
int altitude = 0;
if ( sscanf ( legacyGPSValue.c_str(), "%d", &altitude ) == 1) {
if ( altitude >= 0 ) {
// At or above sea level.
this->xmpObj.SetProperty ( kXMP_NS_EXIF, "GPSAltitudeRef", "0" );
} else {
// Below sea level.
altitude = -altitude;
this->xmpObj.SetProperty ( kXMP_NS_EXIF, "GPSAltitudeRef", "1" );
}
char xmpValue [128];
sprintf ( xmpValue, "%d/1", altitude );
this->xmpObj.SetProperty ( kXMP_NS_EXIF, "GPSAltitude", xmpValue );
this->containsXMP = true;
}
}
}
}
} // P2_MetaHandler::SetAltitudeFromLegacyXML
void P2_MetaHandler::SetVideoInfoFromLegacyXML ( bool digestFound )
{
P2_Clip* p2Clip = this->p2ClipManager.GetManagedClip() ;
XMP_StringPtr p2NS = p2Clip->GetP2RootNode()->ns.c_str();
XML_NodePtr legacyVideoContext = p2Clip->GetEssenceListNode();
if ( legacyVideoContext != 0 ) {
legacyVideoContext = legacyVideoContext->GetNamedElement ( p2NS, "Video" );
if ( legacyVideoContext != 0 ) {
this->SetVideoFrameInfoFromLegacyXML ( legacyVideoContext, digestFound );
this->SetStartTimecodeFromLegacyXML ( legacyVideoContext, digestFound );
this->SetXMPPropertyFromLegacyXML ( digestFound, legacyVideoContext, kXMP_NS_DM, "videoFrameRate", "FrameRate", false );
}
}
} // P2_MetaHandler::SetVideoInfoFromLegacyXML
void P2_MetaHandler::SetGPSPropertyFromLegacyXML ( XML_NodePtr legacyLocationContext, bool digestFound, XMP_StringPtr propName, XMP_StringPtr legacyPropName )
{
if ( digestFound || (! this->xmpObj.DoesPropertyExist ( kXMP_NS_EXIF, propName )) ) {
P2_Clip* p2Clip = this->p2ClipManager.GetManagedClip() ;
XMP_StringPtr p2NS = p2Clip->GetP2RootNode()->ns.c_str();
XML_NodePtr legacyGPSProp = legacyLocationContext->GetNamedElement ( p2NS, legacyPropName );
if ( ( legacyGPSProp != 0 ) && legacyGPSProp->IsLeafContentNode() ) {
this->xmpObj.DeleteProperty ( kXMP_NS_EXIF, propName );
const std::string legacyGPSValue = legacyGPSProp->GetLeafContentValue();
if ( ! legacyGPSValue.empty() ) {
// Convert from decimal to sexagesimal GPS coordinates
char direction = '\0';
double degrees = 0.0;
const int numFieldsRead = sscanf ( legacyGPSValue.c_str(), "%c%lf", &direction, °rees );
if ( numFieldsRead == 2 ) {
double wholeDegrees = 0.0;
const double fractionalDegrees = modf ( degrees, &wholeDegrees );
const double minutes = fractionalDegrees * 60.0;
char xmpValue [128];
sprintf ( xmpValue, "%d,%.5lf%c", static_cast<int>(wholeDegrees), minutes, direction );
this->xmpObj.SetProperty ( kXMP_NS_EXIF, propName, xmpValue );
this->containsXMP = true;
}
}
}
}
} // P2_MetaHandler::SetGPSPropertyFromLegacyXML
void P2_MetaHandler::SetAudioInfoFromLegacyXML ( bool digestFound )
{
P2_Clip* p2Clip = this->p2ClipManager.GetManagedClip() ;
XMP_StringPtr p2NS = p2Clip->GetP2RootNode()->ns.c_str();
XML_NodePtr legacyAudioContext = p2Clip->GetEssenceListNode();
if ( legacyAudioContext != 0 ) {
legacyAudioContext = legacyAudioContext->GetNamedElement ( p2NS, "Audio" );
if ( legacyAudioContext != 0 ) {
this->SetXMPPropertyFromLegacyXML ( digestFound, legacyAudioContext, kXMP_NS_DM, "audioSampleRate", "SamplingRate", false );
if ( digestFound || (! this->xmpObj.DoesPropertyExist ( kXMP_NS_DM, "audioSampleType" )) ) {
XML_NodePtr legacyProp = legacyAudioContext->GetNamedElement ( p2NS, "BitsPerSample" );
if ( (legacyProp != 0) && legacyProp->IsLeafContentNode() ) {
const std::string p2BitsPerSample = legacyProp->GetLeafContentValue();
std::string dmSampleType;
if ( p2BitsPerSample == "16" ) {
dmSampleType = "16Int";
} else if ( p2BitsPerSample == "24" ) {
dmSampleType = "32Int";
}
if ( ! dmSampleType.empty() ) {
this->xmpObj.SetProperty ( kXMP_NS_DM, "audioSampleType", dmSampleType, kXMP_DeleteExisting );
this->containsXMP = true;
}
}
}
}
}
} // P2_MetaHandler::SetAudioInfoFromLegacyXML
void P2_MetaHandler::SetStartTimecodeFromLegacyXML ( XML_NodePtr legacyVideoContext, bool digestFound )
{
// Translate start timecode to the format specified by the dynamic media schema.
if ( digestFound || (! this->xmpObj.DoesPropertyExist ( kXMP_NS_DM, "startTimecode" )) ) {
P2_Clip* p2Clip = this->p2ClipManager.GetManagedClip() ;
XMP_StringPtr p2NS = p2Clip->GetP2RootNode()->ns.c_str();
XML_NodePtr legacyProp = legacyVideoContext->GetNamedElement ( p2NS, "StartTimecode" );
if ( (legacyProp != 0) && legacyProp->IsLeafContentNode() ) {
std::string p2StartTimecode = legacyProp->GetLeafContentValue();
legacyProp = legacyVideoContext->GetNamedElement ( p2NS, "FrameRate" );
if ( (legacyProp != 0) && legacyProp->IsLeafContentNode() ) {
const std::string p2FrameRate = legacyProp->GetLeafContentValue();
XMP_StringPtr p2DropFrameFlag = legacyProp->GetAttrValue ( "DropFrameFlag" );
if ( p2DropFrameFlag == 0 ) p2DropFrameFlag = ""; // Make tests easier.
std::string dmTimeFormat;
if ( ( p2FrameRate == "50i" ) || ( p2FrameRate == "25p" ) ) {
dmTimeFormat = "25Timecode";
} else if ( p2FrameRate == "23.98p" ) {
dmTimeFormat = "23976Timecode";
} else if ( p2FrameRate == "50p" ) {
dmTimeFormat = "50Timecode";
this->AdjustTimeCode( p2StartTimecode, false );
} else if ( ( p2FrameRate == "59.94p" ) && ( p2DropFrameFlag != 0 ) ) {
if ( XMP_LitMatch ( p2DropFrameFlag, "true" ) ) {
dmTimeFormat = "5994DropTimecode";
} else if ( XMP_LitMatch ( p2DropFrameFlag, "false" ) ) {
dmTimeFormat = "5994NonDropTimecode";
}
this->AdjustTimeCode( p2StartTimecode, false );
} else if ( (p2FrameRate == "59.94i") || (p2FrameRate == "29.97p") ) {
if ( p2DropFrameFlag != 0 ) {
if ( XMP_LitMatch ( p2DropFrameFlag, "false" ) ) {
dmTimeFormat = "2997NonDropTimecode";
} else if ( XMP_LitMatch ( p2DropFrameFlag, "true" ) ) {
// Drop frame NTSC timecode uses semicolons instead of colons as separators.
std::string::iterator currCharIt = p2StartTimecode.begin();
const std::string::iterator charsEndIt = p2StartTimecode.end();
for ( ; currCharIt != charsEndIt; ++currCharIt ) {
if ( *currCharIt == ':' ) *currCharIt = ';';
}
dmTimeFormat = "2997DropTimecode";
}
}
}
if ( ( ! p2StartTimecode.empty() ) && ( ! dmTimeFormat.empty() ) ) {
this->xmpObj.SetStructField ( kXMP_NS_DM, "startTimecode", kXMP_NS_DM, "timeValue", p2StartTimecode, 0 );
this->xmpObj.SetStructField ( kXMP_NS_DM, "startTimecode", kXMP_NS_DM, "timeFormat", dmTimeFormat, 0 );
this->containsXMP = true;
}
}
}
}
} // P2_MetaHandler::SetStartTimecodeFromLegacyXML
void P2_MetaHandler::SetVideoFrameInfoFromLegacyXML ( XML_NodePtr legacyVideoContext, bool digestFound )
{
// Map the P2 Codec field to various dynamic media schema fields.
if ( digestFound || (! this->xmpObj.DoesPropertyExist ( kXMP_NS_DM, "videoFrameSize" )) ) {
P2_Clip* p2Clip = this->p2ClipManager.GetManagedClip() ;
XMP_StringPtr p2NS = p2Clip->GetP2RootNode()->ns.c_str();
XML_NodePtr legacyProp = legacyVideoContext->GetNamedElement ( p2NS, "Codec" );
if ( (legacyProp != 0) && legacyProp->IsLeafContentNode() ) {
const std::string p2Codec = legacyProp->GetLeafContentValue();
std::string dmPixelAspectRatio, dmVideoCompressor, dmWidth, dmHeight;
if ( p2Codec == "DV25_411" ) {
dmWidth = "720";
dmVideoCompressor = "DV25 4:1:1";
} else if ( p2Codec == "DV25_420" ) {
dmWidth = "720";
dmVideoCompressor = "DV25 4:2:0";
} else if ( p2Codec == "DV50_422" ) {
dmWidth = "720";
dmVideoCompressor = "DV50 4:2:2";
} else if ( ( p2Codec == "DV100_1080/59.94i" ) || ( p2Codec == "DV100_1080/50i" ) ) {
dmVideoCompressor = "DV100";
dmHeight = "1080";
if ( p2Codec == "DV100_1080/59.94i" ) {
dmWidth = "1280";
dmPixelAspectRatio = "3/2";
} else {
dmWidth = "1440";
dmPixelAspectRatio = "1920/1440";
}
} else if ( ( p2Codec == "DV100_720/59.94p" ) || ( p2Codec == "DV100_720/50p" ) ) {
dmVideoCompressor = "DV100";
dmHeight = "720";
dmWidth = "960";
dmPixelAspectRatio = "1920/1440";
} else if ( ( p2Codec.compare ( 0, 6, "AVC-I_" ) == 0 ) ) {
// This is AVC-Intra footage. The framerate and PAR depend on the "class" attribute in the P2 XML.
const XMP_StringPtr codecClass = legacyProp->GetAttrValue( "Class" );
if ( codecClass != 0 )
dmVideoCompressor = "AVC-Intra"; // initializing with default value
if ( XMP_LitMatch ( codecClass, "100" ) ) {
dmVideoCompressor = "AVC-Intra 100";
dmPixelAspectRatio = "1/1";
if ( p2Codec.compare ( 6, 4, "1080" ) == 0 ) {
dmHeight = "1080";
dmWidth = "1920";
} else if ( p2Codec.compare ( 6, 3, "720" ) == 0 ) {
dmHeight = "720";
dmWidth = "1280";
}
} else if ( XMP_LitMatch ( codecClass, "50" ) ) {
dmVideoCompressor = "AVC-Intra 50";
dmPixelAspectRatio = "1920/1440";
if ( p2Codec.compare ( 6, 4, "1080" ) == 0 ) {
dmHeight = "1080";
dmWidth = "1440";
} else if ( p2Codec.compare ( 6, 3, "720" ) == 0 ) {
dmHeight = "720";
dmWidth = "960";
}
} else {
// Unknown codec class -- we don't have enough info to determine the
// codec, PAR, or aspect ratio
dmVideoCompressor = "AVC-Intra";
}
}
if ( dmWidth == "720" ) {
// This is SD footage -- calculate the frame height and pixel aspect ratio using the legacy P2
// FrameRate and AspectRatio fields.
legacyProp = legacyVideoContext->GetNamedElement ( p2NS, "FrameRate" );
if ( (legacyProp != 0) && legacyProp->IsLeafContentNode() ) {
const std::string p2FrameRate = legacyProp->GetLeafContentValue();
legacyProp = legacyVideoContext->GetNamedElement ( p2NS, "AspectRatio" );
if ( (legacyProp != 0) && legacyProp->IsLeafContentNode() ) {
const std::string p2AspectRatio = legacyProp->GetLeafContentValue();
if ( p2FrameRate == "50i" ) {
// Standard Definition PAL.
dmHeight = "576";
if ( p2AspectRatio == "4:3" ) {
dmPixelAspectRatio = "768/702";
} else if ( p2AspectRatio == "16:9" ) {
dmPixelAspectRatio = "1024/702";
}
} else if ( p2FrameRate == "59.94i" ) {
// Standard Definition NTSC.
dmHeight = "480";
if ( p2AspectRatio == "4:3" ) {
dmPixelAspectRatio = "10/11";
} else if ( p2AspectRatio == "16:9" ) {
dmPixelAspectRatio = "40/33";
}
}
}
}
}
if ( ! dmPixelAspectRatio.empty() ) {
this->xmpObj.SetProperty ( kXMP_NS_DM, "videoPixelAspectRatio", dmPixelAspectRatio, kXMP_DeleteExisting );
this->containsXMP = true;
}
if ( ! dmVideoCompressor.empty() ) {
this->xmpObj.SetProperty ( kXMP_NS_DM, "videoCompressor", dmVideoCompressor, kXMP_DeleteExisting );
this->containsXMP = true;
}
if ( ( ! dmWidth.empty() ) && ( ! dmHeight.empty() ) ) {
this->xmpObj.SetStructField ( kXMP_NS_DM, "videoFrameSize", kXMP_NS_XMP_Dimensions, "w", dmWidth, 0 );
this->xmpObj.SetStructField ( kXMP_NS_DM, "videoFrameSize", kXMP_NS_XMP_Dimensions, "h", dmHeight, 0 );
this->xmpObj.SetStructField ( kXMP_NS_DM, "videoFrameSize", kXMP_NS_XMP_Dimensions, "unit", "pixel", 0 );
this->containsXMP = true;
}
}
}
} // P2_MetaHandler::SetVideoFrameInfoFromLegacyXML
void P2_MetaHandler::UpdateFile ( bool doSafeUpdate )
{
if ( ! this->needsUpdate ) return;
this->needsUpdate = false; // Make sure only called once.
XMP_Assert ( this->parent->UsesLocalIO() );
// Update the internal legacy XML tree if we have one, and set the digest in the XMP.
bool updateLegacyXML = false;
P2_Clip* p2Clip = 0;
XML_NodePtr clipMetadata = 0;
if ( this->p2ClipManager.IsValidP2() )
{
p2Clip=this->p2ClipManager.GetManagedClip();
clipMetadata = p2Clip->GetClipMetadataNode();
if ( clipMetadata != 0 ) {
bool xmpFound;
std::string xmpValue;
XML_Node * xmlNode;
xmpFound = this->xmpObj.GetLocalizedText ( kXMP_NS_DC, "title", "", "x-default", 0, &xmpValue, 0 );
if ( xmpFound && p2Clip->GetClipContentNode()) {
xmlNode = this->ForceChildElement ( p2Clip->GetClipContentNode(), "ClipName", 3, false );
if ( xmpValue != xmlNode->GetLeafContentValue() ) {
xmlNode->SetLeafContentValue ( xmpValue.c_str() );
updateLegacyXML = true;
}
}
xmpFound = this->xmpObj.GetArrayItem ( kXMP_NS_DC, "creator", 1, &xmpValue, 0 );
if ( xmpFound ) {
xmlNode = this->ForceChildElement ( clipMetadata , "Access", 3, false );
// "Creator" must be first child of "Access" node else Panasonic P2 Viewer gives an error.
xmlNode = this->ForceChildElement ( xmlNode, "Creator", 4 , true);
if ( xmpValue != xmlNode->GetLeafContentValue() ) {
xmlNode->SetLeafContentValue ( xmpValue.c_str() );
updateLegacyXML = true;
}
}
}
// Half the startTimeCode frame number value in XML if require so
std::string xmpStartTimeCode;
bool isTimecodeExists = this->xmpObj.GetStructField(kXMP_NS_DM, "startTimecode", kXMP_NS_DM, "timeValue", &xmpStartTimeCode, 0);
if (isTimecodeExists)
{
std::string frameFormat;
this->xmpObj.GetStructField(kXMP_NS_DM, "startTimecode", kXMP_NS_DM, "timeFormat", &frameFormat, 0);
if (frameFormat == "50Timecode" || frameFormat == "5994DropTimecode" || frameFormat == "5994NonDropTimecode")
{
p2Clip = this->p2ClipManager.GetManagedClip();
XMP_StringPtr p2NS = p2Clip->GetP2RootNode()->ns.c_str();
XML_NodePtr legacyVideoContext = p2Clip->GetEssenceListNode();
if (legacyVideoContext != 0)
{
legacyVideoContext = legacyVideoContext->GetNamedElement(p2NS, "Video");
XML_NodePtr legacyProp = legacyVideoContext->GetNamedElement(p2NS, "StartTimecode");
if ((legacyProp != 0) && legacyProp->IsLeafContentNode())
{
AdjustTimeCode( xmpStartTimeCode, true );
if (xmpStartTimeCode != legacyProp->GetLeafContentValue())
{
legacyProp->SetLeafContentValue(xmpStartTimeCode.c_str());
updateLegacyXML = true;
}
}
}
}
}
std::string newDigest;
this->p2ClipManager.GetManagedClip()->CreateDigest ( &newDigest );
this->xmpObj.SetStructField ( kXMP_NS_XMP, "NativeDigests", kXMP_NS_XMP, "P2", newDigest.c_str(), kXMP_DeleteExisting );
}
this->xmpObj.SerializeToBuffer ( &this->xmpPacket, this->GetSerializeOptions() );
// -----------------------------------------------------------------------
// Update the XMP file first, don't let legacy XML failures block the XMP.
std::string xmpPath;
this->MakeClipFilePath ( &xmpPath, ".XMP" );
bool haveXMP = Host_IO::Exists ( xmpPath.c_str() );
if ( ! haveXMP ) {
XMP_Assert ( this->parent->ioRef == 0 );
Host_IO::Create ( xmpPath.c_str() );
this->parent->ioRef = XMPFiles_IO::New_XMPFiles_IO ( xmpPath.c_str(), Host_IO::openReadWrite );
if ( this->parent->ioRef == 0 ) XMP_Throw ( "Failure opening P2 XMP file", kXMPErr_ExternalFailure );
}
XMP_IO* xmpFile = this->parent->ioRef;
XMP_Assert ( xmpFile != 0 );
XIO::ReplaceTextFile ( xmpFile, this->xmpPacket, (haveXMP & doSafeUpdate) );
// --------------------------------------------
// Now update the legacy XML file if necessary.
if ( updateLegacyXML ) {
std::string legacyXML, xmlPath;
/*bug # 3217688: xmlns:xsi=http://www.w3.org/2001/XMLSchema-instance namespace must be defined at the
root node "P2Main" in legacy XML else Panasonic P2 Viewer gives an error. So we are adding a
dummy attribute with this namespace to clipContent/clipMetadata (whichever is non-null) before
serializing the XML tree. We are also undoing it below after serialization.*/
XML_Node *parentNode = AddXSINamespace(p2Clip->GetClipContentNode(), clipMetadata);
p2Clip->SerializeP2ClipContent ( legacyXML );
if(parentNode){
// Remove the dummy attribute added to clipContent/clipMetadata.
delete parentNode->attrs[parentNode->attrs.size()-1];
parentNode->attrs.pop_back();
}
this->MakeClipFilePath ( &xmlPath, ".XML" );
bool haveXML = Host_IO::Exists ( xmlPath.c_str() );
if ( ! haveXML ) Host_IO::Create ( xmlPath.c_str() );
Host_IO::FileRef hostRef = Host_IO::Open ( xmlPath.c_str(), Host_IO::openReadWrite );
if ( hostRef == Host_IO::noFileRef ) XMP_Throw ( "Failure opening P2 legacy XML file", kXMPErr_ExternalFailure );
XMPFiles_IO origXML ( hostRef, xmlPath.c_str(), Host_IO::openReadWrite );
XIO::ReplaceTextFile ( &origXML, legacyXML, (haveXML & doSafeUpdate) );
origXML.Close();
}
} // P2_MetaHandler::UpdateFile
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
