Il problema /1

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An MXM-based application for sharing protected
content Angelo Difino
MXM DevDay, London, 2009-06-28
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A 'concrete' MXM application

• An MXM-based application for sharing protected
  content
• List of technologies
• First a-release due to the end of July

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(No Transcript)
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MXM configuration file

• ltMXMConfiguration //cut// xsischemaLocation"urn
  orgisompegmxmconfigurationschema
  mxmConfiguration.xsd"gt
• ltMXMParametersgt
• ltentry key"app.add.resource.path"gtchillout_eud/t
  arget/classeslt/entrygt (not yet used)
• ltComplexParametergt
• ltbarCustomMXMParam xmlnsbar"urnbar"gtA
  complex MXM configuration parameterlt/barCustomMXM
  Paramgt
• lt/ComplexParametergt
• lt/MXMParametersgt
• ltMediaFrameworkEngine id"1"gt
• ltDynamicLibrarygt
• ltLibraryPathgt//path//to//gst_media_framework_eng
  ine.dlllt/LibraryPathgt(.so in linux)
• lt/DynamicLibrarygt
• ltClassNamegtGSTMXMMediaFrameworkEnginelt/ClassNamegt
  (not yet used)
• lt/MediaFrameworkEnginegt

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MXM configuration file

• ltMediaFrameworkEngine id"0"gt
• ltDynamicLibrarygt
• ltLibraryPathgt//path//to//vlc_media_framework_en
  gine.dlllt/LibraryPathgt
• lt/DynamicLibrarygt
• ltClassNamegtVLCMXMMediaFrameworkEnginelt/ClassNamegt
  
• lt/MediaFrameworkEnginegt
• ltDIDEngine id"0"gt
• ltDynamicLibrarygt
• ltLibraryPathgt//path//to//basic_did_engine.dlllt/L
  ibraryPathgt
• lt/DynamicLibrarygt
• ltClassNamegtBasicMXMDIDEnginelt/ClassNamegt
• ltDIDProfileCompliancegturnmpegmafschemamediast
  reaminglt/DIDProfileCompliancegt
• lt/DIDEnginegt

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From MXM schema to MXM dataobject

• didl.xsd
• didl-msx.xsd
• didmodel.xsd
• dii.xsd
• ipmpdidl.xsd
• ipmpinfo.xsd
• ipmpinfo-msx.xsd
• ipmpmsg.xsd
• mpeg4ipmp.xsd
• mpeg7smp.xsd
• rel-m1x.xsd
• rel-m2x.xsd
• rel-m3x.xsd
• rel-mx.xsd
• rel-r.xsd
• rel-sx.xsd
• xenc.xsd dsig.xsd

XSD
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MXM engine

• MXMEngineMXMEngine_t enginetype
• MXMEngine(const string enginename, const
  MXMEngine_t enginetype)
• MXMEngine(int argn, const char const argv)
• template lt class T gt class MXMEngineFactory

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BasicDIDEngine a MXM skeleton engine
DEFINITION on H class BasicDIDEngine public
DIDEngine public BasicDIDEngine(int argn,
const char const argv) virtual
BasicDIDEngine() DIParser getDIParser()
....// other MXM DIDEngine api definition clas
s Factory public MXMEngineFactorylt
BasicDIDEngine gt MXM_DLL_EXPORT void
factory0( void ) return new Factory()
IMPLEMENTATION on CPP BasicDIDEngineBasicDIDEng
ine (int nparam, const char const vparam)
DIDEngine("BasicDIDEngine") .... /
/other MXM DIDEngine api implementation
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Supported SO and dependencies

• XSD CODESYNTHESIS
• http//www.codesynthesis.com/
• APACHE LOG4Cxx
• http//logging.apache.org/log4cxx/
• APACHE XERCES (used by XSD)
• http//xerces.apache.org/xerces-c/

• Win32
• MSVisual C compiler
• Linux
• G compiler
• MacOSX
• ...

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Using MXM APIs

• MxM mxm MxMgetInstance(argc, argv)
• MXMEngineContainer metaEngineContainer
• mxm-gtgetDefaultEngineContainer(MXMEngin
  eMetadataEngine)
• MXMEngineContainer didEngineContainer
• mxm-gtgetDefaultEngineContainer(MXMEngin
  eDIDEngine)
• MetadataEngine _metaengine (MetadataEngine)
  metaEngineContainer-gtgetEngine()
• DIDEngine _didengine (DIDEngine)
  didEngineContainer-gtgetEngine()
• DIParser di_parser_didengine-gtgetDIParser()
• di_parser-gtparseDI(dci_url) //can be
  parseDI(MXMObject)
• MXMObject metadata0
• di_parser-gtgetContentMetadata(metadata)
• MetadataParser meta_parser _metaengine-gtgetMeta
  dataParser()
• meta_parser-gtparseMetadataObj(metadata)
• stdstring title("")

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Using MXM APIs

• ....
• LicenseParser licence_parser-gtparseLicense(licens
  e)
• GrantParser first_gp
• listlt GrantParser gt l
• if (licence_parser-gtgetGrants( l ))
• listlt GrantParser gtconst_iterator it
  l.begin()
• while(it ! l.end())
• first_gpit
• if (first_gp-gtcontainsProtectedResource(
  ))
• ProtectedResourceParser
  protectedresource
• first_gp-gtgetProtectedResource(prot
  ectedresource)
• MXMObject master_encrypted0
• protectedresource-gtgetEncryptedKey(
  master_encrypted)
• ....
• _mfengine-gtsetIPMPTool(drmtools)
• _mfengine-gtopen(resource_url)
• _mfengine-gtplay()
• ....
• _mfengine-gtpause()

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MXM engine todo

• MXM engine parameters
• MXM exception
• MXM core as singleton
• MXM configuration file updated live
• MXM loader / adapter (like java side)

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A test MXM application

• An MXM-based application for access protected
  content
• Integrated with chillout functionalities (for
  creation)
• Two media frameworks (MF APIs)
• VLC (0.9.9.a) and GSTREAMER (0.10 ? 1½ year
  old!!!)
• On win32
• GTK (with glib)
• GSTREAMER and VLC (easy to install)
• OPENSSL (for some protection/security aspect)
• SQLite

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MXM info

• MXM Mailing list
• mxm_at_lists.uni-klu.ac.at
• Website
• http//mxm.wg11.sc29.org/
• (my)Personal contacts
• angelo_at_smartrm.com
• skype angelo.difino

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Thank you for your attention!
angelo_at_smartrm.com
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