CableLabs媒资分发接口规范

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MetadataSpecificationsCableLabs®AssetDistributionInterfaceSpecificationVersion1.1MD-SP-ADI1.1-I04-060505ISSUEDNoticeThisspecificationisacooperativeeffortundertakenatthedirectionofCableTelevisionLaboratories,Inc.(CableLabs®)forthebenefitofthecableindustry.NeitherCableLabs,noranyotherentityparticipatinginthecreationofthisdocument,isresponsibleforanyliabilityofanynaturewhatsoeverresultingfromorarisingoutofuseorrelianceuponthisdocumentbyanyparty.ThisdocumentisfurnishedonanAS-ISbasisandneitherCableLabs,norotherparticipatingentity,providesanyrepresentationorwarranty,expressorimplied,regardingitsaccuracy,completeness,orfitnessforaparticularpurpose.©Copyright2002-2006CableTelevisionLaboratories,Inc.Allrightsreserved.MD-SP-ADI1.1-I04-060505MetadataSpecificationsiiCableLabs®5/05/06DocumentStatusSheetDocumentControlNumber:MD-SP-ADI1.1-I04-060505DocumentTitle:CableLabs®AssetDistributionInterfaceSpecificationVersion1.1RevisionHistory:I01–Released9/27/02I02–Released4/15/03I03–Released1/7/04I04–Released5/5/06Date:May5,2006Status:WIPDraftIssuedReleasedDistributionRestrictions:AuthorOnlyCL/MemberCL/Member/VendorPublicKeytoDocumentStatusCodes:WorkinProgressAnincompletedocument,designedtoguidediscussionandgeneratefeedback,thatmayincludeseveralalternativerequirementsforconsideration.DraftAdocumentinspecificationformatconsideredlargelycomplete,butlackingreviewbyMembersandvendors.Draftsaresusceptibletosubstantialchangeduringthereviewprocess.IssuedAstabledocument,whichhasundergonerigorousmemberandvendorreviewandissuitableforproductdesignanddevelopment,cross-vendorinteroperability,andforcertificationtesting.ClosedAstaticdocument,reviewed,tested,validated,andclosedtofurtherengineeringchangerequeststothespecificationthroughCableLabs.Trademarks:DOCSIS®,eDOCSIS™,M-CMTS™,PacketCable™,CableHome®,CableOffice™,OpenCable™,CableCARD™,DCAS™,OCAP™,andCableLabs®aretrademarksofCableTelevisionLaboratories,Inc.CableLabs®AssetDistributionInterfaceSpecificationVersion1.1MD-SP-ADI1.1-I04-0605055/05/06CableLabs®iiiTableofContents1INTRODUCTION...............................................................................................................................................11.1Purpose..........................................................................................................................................................11.2Scope.............................................................................................................................................................11.3Requirements.................................................................................................................................................12REFERENCES....................................................................................................................................................22.1NormativeReferences...................................................................................................................................22.2InformativeReferences..................................................................................................................................22.3ReferenceAcquisition...................................................................................................................................23TERMSANDDEFINITIONS............................................................................................................................34ABBREVIATIONSANDACRONYMS............................................................................................................45DATATYPES......................................................................................................................................................55.1Package..........................................................................................................................................................55.2Asset..............................................................................................................................................................55.3Metadata........................................................................................................................................................65.3.1AMSmetadata........................................................................................................................................65.3.2Applicationmetadata.............................................................................................................................75.4Content..........................................................................................................................................................86FILEFORMATS.................................................................................................................................................96.1ADSDirectoryFormat...........................................................................................................................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