Hi all,
I want to parse some MPEG-7 metadata. I load the metadata file into a C string
(char *) and use the following code to parse it. However, it causes an error
which crashes the application. I cannot even know what error it is. Can you
help me please.
Thank you very much in advance.
Code:
XMLPlatformUtils::Initialize();
XERCES_CPP_NAMESPACE::XMLGrammarPoolImpl mpGrammarPool = new
XMLGrammarPoolImpl(XMLPlatformUtils::fgMemoryManager);
XERCES_CPP_NAMESPACE::XercesDOMParser parser= new XercesDOMParser(0,
XMLPlatformUtils::fgMemoryManager, mpGrammarPool);
XercesDOMParser::ValSchemes valScheme = XercesDOMParser::Val_Always;
mpParser->setValidationScheme(valScheme);
mpParser->setDoNamespaces(true);
mpParser->setDoSchema(true);
mpParser->setValidationSchemaFullChecking(true);
mpParser->setIncludeIgnorableWhitespace(false);
MemBufInputSource* memBufIS = new MemBufInputSource(
(const
XMLByte*)pXMLString, // pXMLString is the data to be parsed
strlen(pXMLString),
"FromString",
false);
mpParser->parse(*memBufIS); // crash here
The content of the metadata file:
<Mpeg7 xmlns="urn:mpeg:mpeg7:schema:2001"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
xmlns:mpeg7="urn:mpeg:mpeg7:schema:2001"
xsi:schemaLocation="urn:mpeg:mpeg7:schema:2001 Mpeg7-2001.xsd">
<DescriptionMetadata>
<Version>1.0</Version>
<PrivateIdentifier>descriptionUnitExample</PrivateIdentifier>
</DescriptionMetadata>
<DescriptionUnit xsi:type="ScalableColorType" numOfCoeff="16"
numOfBitplanesDiscarded="0">
<Coeff> 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 </Coeff>
</DescriptionUnit>
</Mpeg7>
The MPEG-7 Schemas are downloaded from: http://m7itb.nist.gov/M7Validation.html
Best regards
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