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1、ICS 35.040 Ref. No. ISO/IEC 23001-1:2006/Cor.1:2007(E) ISO/IEC 2007 All rights reserved Published in Switzerland INTERNATIONAL STANDARD ISO/IEC 23001-1:2006 TECHNICAL CORRIGENDUM 1 Published 2007-02-01 INTERNATIONAL ORGANIZATION FOR STANDARDIZATION ORGANISATION INTERNATIONALE DE NORMALISATION INTERN
2、ATIONAL ELECTROTECHNICAL COMMISSION COMMISSION LECTROTECHNIQUE INTERNATIONALE Information technology MPEG systems technologies Part 1: Binary MPEG format for XML TECHNICAL CORRIGENDUM 1 Technologies de linformation Technologies des systmes MPEG Partie 1: Format binaire de MPEG pour XML RECTIFICATIF
3、TECHNIQUE 1 Technical Corrigendum 1 to ISO/IEC 23001-1:2006 was prepared by Joint Technical Committee ISO/IEC JTC 1, Information technology, Subcommittee SC 29, Coding of audio, picture, multimedia and hypermedia information. Copyright International Organization for Standardization Provided by IHS u
4、nder license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/28/2007 04:55:31 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO/IEC 23001-1:2006/Cor.1:2007(E) 2 ISO/IEC 2007 All rights reserved In subclause 3.2.32, replace the paragraph: The ord
5、ered concatenation of either binary or textual access units conveying a single, possibly time-variant, document. with: The ordered concatenation of binary access units conveying a single, possibly time-variant, document. In subclause 5.5.3 replace the third and fourth paragraphs with: Backward compa
6、tibility is provided by the unique reference of the used schema in the DecoderInit using its Schema URI as its namespace identifier. Forward compatibility is ensured by a specific syntax defined in Clauses 6 and 7. Its main principle is to use the namespace of the schema, i.e., the Schema URI, as a
7、unique version identifier. The binary format allows one to keep parts of a document related to different schema in separate chunks of the binary document stream, so that parts related to unknown schema may be skipped by the decoder. In order for this approach to work, an updated schema should not be
8、 defined using the ISO/IEC 23001-1 “redefine” construct but should be defined in a new namespace. The Decoder Initialisation identifies schema versions with which compatibility is preserved by listing their Schema URIs. A decoder that knows at least one of the Schema URIs will be able to decode at l
9、east part of the binary document stream. In subclause 5.6, replace the seventh item of the third paragraph with: - The DL shall provide a means to deliver the DecoderInit information (see subclause 6.2) to the terminal before any access unit decoding occurs. In subclause 5.7.1, replace the first par
10、agraph with: The result of decoding a non-deferred fragment reference shall be passed to a mechanism (fragment reference resolver) which returns fragment update payload data to the FU payload decoder. This fragment update payload data is in the following form: - a BiM fragment update payload contain
11、ing the document fragment data. In subclause 6.6.2, replace the first table with: DecoderInit () Number of bits Mnemonic SystemsProfileLevelIndication 8+ vluimsbf8 UnitSizeCode 3 bslbf NoAdvancedFeatures 1 bslbf ReservedBits 4 bslbf If (! NoAdvancedFeatures) AdvancedFeatureFlags_Length 8+ vluimsbf8
12、/* FeatureFlags */ InsertFlag 1 bslbf AdvancedOptimisedDecodersFlag 1 bslbf AdditionalSchemaFlag 1 bslbf AdditionalSchemaUpdatesOnlyFlag 1 bslbf Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resa
13、le, 04/28/2007 04:55:31 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO/IEC 23001-1:2006/Cor.1:2007(E) ISO/IEC 2007 All rights reserved 3 FragmentReferenceFlag 1 bslbf MPCOnlyFlag 1 bslbf HierarchyBasedSubstitutionCodingFlag 1 bslbf ContextPathTableFlag 1 bslbf Reserved
14、BitsZero AdvancedFe atureFlags_ Length*8-8 bslbf /* FeatureFlags end */ /* Start FUUConfig */ If (! AdditionalSchemaUpdatesOnlyFlag) NumberOfSchemas 8+ vluimsbf8 for (k=0; k NumberOfSchemas; k+) SchemaURI_Lengthk 8+ vluimsbf8 SchemaURIk 8* SchemaURI _Lengthk bslbf LocationHint_Lengthk 8+ vluimsbf8 L
15、ocationHintk 8* LocationHint _Lengthk bslbf NumberOfTypeCodecsk 8+ vluimsbf8 for (i=0; i NumberOfTypeCodecsk; i+) TypeCodecURI_Lengthki 8+ vluimsbf8 TypeCodecURIki 8* TypeCodec URI _Lengthki bslbf NumberOfTypeski 8+ vluimsbf8 for (j=0; j NumberOfTypeski; j+) TypeIdentificationCodekij 8+ vluimsbf8 If
16、 (ContextPathTableFlag) ContextPathTable() /* FUUConfig - Advanced optimised decoder framework */ If (AdvancedOptimisedDecodersFlag) NumOfAdvancedOptimisedDecoderTypes 8+ vluimsbf8 for (i=0; i NumOfAdvancedOptimisedDecoderTypes; i+) AdvancedOptimisedDecoderTypeURI_Lengthi 8+ vluimsbf8 AdvancedOptimi
17、sedDecoderTypeURIi 8* AdvancedO ptimisedDec oderTypeU RI_Lengthi bslbf Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/28/2007 04:55:31 MDTNo reproduction or networking permitted without
18、 license from IHS -,-,- ISO/IEC 23001-1:2006/Cor.1:2007(E) 4 ISO/IEC 2007 All rights reserved AdvancedOptimisedDecodersConfig () /* FUUConfig - Fragment reference framework */ If (FragmentReferenceFlag) NumOfSupportedFragmentReferenceFormat 8 uimsbf for (i=0;i NumOfSupportedFragmentReferenceFormat;i
19、+) SupportedFragmentReferenceFormati 8 blsbf /* end FUUConfig */ If (AdditionalSchemaFlag) AdditionalSchemaConfig () /* Initial document */ If (!AdditionalSchemaUpdatesOnlyFlag) InitialDocument_Length 8+ vluimsbf8 InitialDocument() Add the following missing semantics at the end of Semantics paragrap
20、h: NoAdvancedFeatures If true, signals that no advanced features are present in the decoderInit. AdvancedFeatureFlags_Length Length (in Bytes) of advanced features in the decoderInit. InsertFlag If true, signals that Position Codes represent rational numbers (Rational Position Codes). See subclause
21、6.6.5.5. AdvancedOptimisedDecoderFlag If true, signals that configuration for advanced optimised decoders is present in this decoderInit. AdditionalSchemaFlag If true, signals that configuration for additional schemas is present in this decoderInit. In subclause 7.4.2.2, add the following missing se
22、mantics: in_AnyElementDecoding If true, signals that the element is decoded as part of AnyElementDecoding procedure (see 7.5.2.5.5). Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/28/20
23、07 04:55:31 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO/IEC 23001-1:2006/Cor.1:2007(E) ISO/IEC 2007 All rights reserved 5 In subclause 7.5.2.4.5.2, replace the table with: AnyElementDecoding() Number of bits Mnemonic GlobalElementSchemaID ceil( log2( NumberOfSchemas
24、 + NumberOfAdditionalSch emas) ) uimsbf AnyElement_Length 5+ vluimsbf Any_SBC_Operand_Selector 5+ vluimsbf If (inPayloadDecoding() Element(ChildrenSchemaMode, theAnyType) In subclause 7.5.3.1, replace the second item in the first paragraph with: All the attribute definitions defined as FIXED in the
25、schema are suppressed if the attribute is required in the schema, Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/28/2007 04:55:31 MDTNo reproduction or networking permitted without license from IHS -,-,-