1、BRITISH STANDARD BS ISO/IEC 21000-7:2004 Information technology Multimedia framework (MPEG-21) Part 7: Digital Item Adaptation ICS 35.040 BS ISO/IEC 21000-7:2004 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 24 November 2004 BSI 24 November
2、 2004 ISBN 0 580 44695 6 National foreword This British Standard reproduces verbatim ISO/IEC 21000-7:2004 and implements it as the UK national standard. The UK participation in its preparation was entrusted to Technical Committee IST/37, Coding of audio, picture, multimedia and hypermedia informatio
3、n, which has the responsibility to: A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards which implement international publications referred to in this document may be found in the BSI Catalogue under the section en
4、titled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Complia
5、nce with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related i
6、nternational and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the ISO/IEC title page, pages ii to ix, a blank page, pages 1 to 355 and a back cover. The BSI copyright notice displayed in this document indicates wh
7、en the document was last issued. Amendments issued since publication Amd. No. Date Comments Reference number ISO/IEC 21000-7:2004(E) OSI4002 CEI/INTERNATIONAL STANDARD ISO/IEC 21000-7 First edition 2004-10-15 Information technology Multimedia framework (MPEG-21) Part 7: Digital Item Adaptation Techn
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13、gro Pulbisdehi n Switlrez dnaii ISO/IE 4002 C Allr ithgsser ervdeBSISO/IEC210007:2004IS/OIE00012 C-7:002(4)E I SO/IE4002 C All irthgs serervde iiiContents Page Foreword viii Introduction . ix 1 Scope 1 1.1 General. 1 1.2 Organization of the document . 1 1.3 Overview of Digital Item Adaptation . 1 1.
14、4 Overview of Digital Item Adaptation tools 2 1.5 Relation between Digital Item Adaptation and other parts of ISO/IEC 21000 . 3 1.6 Relation between Digital Item Adaptation and ISO/IEC 15938 . 4 2 Normative references . 4 3 Terms, definitions, symbols, and abbreviated terms 5 3.1 Terms and definitio
15、ns. 5 3.1.1 General terms and definitions . 5 3.1.2 DIA-specific terms and definition 6 3.2 Symbols and abbreviated terms 7 3.3 Schema documents 8 3.4 Use of prefixes in this specification 8 3.5 URI fragment identifiers for XML documents. 9 3.5.1 Syntax of URI fragment identifiers 9 3.5.2 URI fragme
16、nt identifiers examples 9 4 Schema tools. 10 4.1 Introduction . 10 4.2 Schema wrapper . 10 4.3 Base types . 10 4.3.1 Introduction . 10 4.3.2 Base types syntax. 11 4.3.3 Base types semantics. 11 4.4 Description metadata 11 4.4.1 Introduction . 11 4.4.2 Description metadata syntax . 12 4.4.3 Descripti
17、on metadata semantics. 12 4.5 Root elements . 12 4.5.1 Introduction . 12 4.5.2 Root element syntax . 13 4.5.3 Root element semantics. 13 4.5.4 Root element examples 14 4.6 Reference. 15 4.6.1 Introduction . 15 4.6.2 Reference syntax 15 4.6.3 Reference semantics 15 4.6.4 Reference examples . 15 5 Low
18、-level datatypes 16 5.1 Introduction . 16 5.2 Unsigned integer datatypes. 16 5.2.1 Introduction . 16 5.2.2 Unsigned integer datatypes syntax 16 5.2.3 Unsigned integer datatypes semantics 18 5.3 Common datatypes. 18 5.3.1 Introduction . 18 BSISO/IEC210007:2004IS/OIE00012 C-7:002(4)E iv I SO/IE4002 C
19、All irthgs serervde5.3.2 Single value datatypes19 5.3.3 Vector datatypes20 5.3.4 Matrix datatypes 23 5.4 Base stack function.25 5.4.1 Introduction25 5.4.2 Base stack function syntax 26 5.4.3 Base stack function semantics27 5.5 Argument types and extensions27 5.5.1 Introduction27 5.5.2 Argument types
20、 and extensions syntax .28 5.5.3 Argument types and extensions semantics .30 6 Usage environment description tools.33 6.1 Introduction33 6.2 Schema wrapper33 6.3 Usage environment .34 6.3.1 Introduction34 6.3.2 Usage environment syntax.34 6.3.3 Usage environment semantics 35 6.4 User characteristics
21、 35 6.4.1 Introduction35 6.4.2 Users.35 6.4.3 User.36 6.4.4 UserInfo 37 6.4.5 UsagePreferences .38 6.4.6 UsageHistory .39 6.4.7 AudioPresentationPreferences41 6.4.8 DisplayPresentationPreferences .47 6.4.9 ColorPreference.48 6.4.10 StereoscopicVideoConversion 51 6.4.11 GraphicsPresentationPreference
22、s 53 6.4.12 ConversionPreference 54 6.4.13 PresentationPriorityPreference .59 6.4.14 FocusOfAttention 63 6.4.15 AuditoryImpairment 68 6.4.16 VisualImpairment.70 6.4.17 ColorVisionDeficiency 73 6.4.18 MobilityCharacteristics.76 6.4.19 Destination .80 6.5 Terminal capabilities.81 6.5.1 Introduction81
23、6.5.2 Terminals82 6.5.3 Terminal82 6.5.4 CodecCapabilities .83 6.5.5 CodecCapability 84 6.5.6 CodecParameter87 6.5.7 Displays89 6.5.8 Display90 6.5.9 DisplayCapabilities91 6.5.10 AudioOutputs.94 6.5.11 AudioOutput.95 6.5.12 AudioOutputCapabilities 96 6.5.13 UserInteractionInputs .97 6.5.14 UserInter
24、actionInput .98 6.5.15 DeviceClass .102 6.5.16 PowerCharacteristics102 6.5.17 Storages .103 6.5.18 Storage .104 6.5.19 StorageCharacteristics .105 6.5.20 DataIOs .106 BSISO/IEC210007:2004IS/OIE00012 C-7:002(4)E I SO/IE4002 C All irthgs serervde v6.5.21 DataIO. 106 6.5.22 DataIOCharacteristics. 107 6
25、.5.23 Benchmarks. 108 6.5.24 Benchmark. 109 6.5.25 CPUBenchmark . 110 6.5.26 ThreeDBenchmark 111 6.5.27 IPMPTools 111 6.5.28 Terminal capabilities examples . 113 6.6 Network characteristics 115 6.6.1 Introduction . 115 6.6.2 Networks 116 6.6.3 Network 116 6.6.4 NetworkCapability. 117 6.6.5 NetworkCo
26、ndition . 118 6.6.6 Network characteristics example 120 6.7 Natural environment characteristics. 120 6.7.1 Introduction . 120 6.7.2 NaturalEnvironments 121 6.7.3 NaturalEnvironment 121 6.7.4 Location . 122 6.7.5 Time 123 6.7.6 AudioEnvironment 124 6.7.7 IlluminationCharacteristics 126 7 Bitstream sy
27、ntax description link . 128 7.1 Introduction . 128 7.2 BSDLink syntax. 128 7.3 BSDLink semantics. 130 7.4 BSDLink example 131 8 Bitstream Syntax Description 131 8.1 Introduction . 131 8.1.1 Introduction to BSD-based adaptation . 131 8.1.2 Adaptation architecture 132 8.1.3 BSDL and gBS Schema 133 8.1
28、.4 Bitstream Syntax Description transformation . 133 8.1.5 Multi-step adaptation 133 8.1.6 Organization of this clause 134 8.2 Bitstream Syntax Description Language 134 8.2.1 Overview 134 8.2.2 Schema hierarchy . 136 8.3 Bitstream generation: BSDL-1 and gBS Schema 137 8.3.1 BSDL-1 . 137 8.3.2 generi
29、c Bitstream Syntax Schema 144 8.4 BS Description generation: BSDL-2 155 8.4.1 Introduction . 155 8.4.2 Schema for BSDL-2 extensions. 157 8.4.3 Constraints on the syntax of BSDL-2 extensions 159 8.4.4 Semantics of BSDL-2 structural extensions 160 8.4.5 Semantics of BSDL-2 datatypes extensions 161 8.4
30、.6 BSDL-2 validity of BS Schemas 161 8.4.7 Run-time constraints during BS Description generation . 162 8.4.8 BS Description generation with BintoBSD. 162 8.4.9 Examples 163 9 Terminal and network quality of service 167 9.1 Introduction . 167 9.2 Schema wrapper . 167 9.3 AdaptationQoS 168 9.3.1 Intro
31、duction . 168 9.3.2 AdaptationQoS syntax 169 BSISO/IEC210007:2004IS/OIE00012 C-7:002(4)E vi I SO/IE4002 C All irthgs serervde9.3.3 AdaptationQoS semantics169 9.3.4 AdaptationQoS example.169 9.4 AdaptationQoS modules 170 9.4.1 Introduction170 9.4.2 BaseModule syntax.170 9.4.3 BaseModule semantics.170
32、 9.5 IOPin .170 9.5.1 Introduction170 9.5.2 IOPin syntax.170 9.5.3 IOPin semantics.171 9.6 UtilityFunction .171 9.6.1 Introduction171 9.6.2 UtilityFunction syntax.172 9.6.3 UtilityFunction semantics.172 9.6.4 UtilityRank syntax .173 9.6.5 UtilityRank semantics .174 9.6.6 UtilityFunction example174 9
33、.7 Look-up table.176 9.7.1 Introduction176 9.7.2 LookUpTable syntax .176 9.7.3 LookUpTable semantics .176 9.7.4 Axis syntax.177 9.7.5 Axis semantics 177 9.7.6 Content syntax.178 9.7.7 Content semantics 178 9.7.8 LookUpTable example 179 9.8 Stack function180 9.8.1 Introduction180 9.8.2 StackFunction
34、syntax .180 9.8.3 StackFunction semantics .180 9.8.4 StackFunction example 180 9.9 Switch mechanism 182 9.9.1 Introduction182 9.9.2 BaseSwitchModule syntax .182 9.9.3 BaseSwitchModule semantics.183 9.9.4 UtilityFunctionSwitch syntax .183 9.9.5 UtilityFunctionSwitch semantics.183 9.9.6 LookUpTableSwi
35、tch syntax184 9.9.7 LookUpTableSwitch semantics .184 9.9.8 StackFunctionSwitch syntax185 9.9.9 StackFunctionSwitch semantics .185 10 Universal constraints description tools185 10.1 Introduction185 10.2 Universal constraints description syntax.187 10.3 Universal constraints description semantics.188
36、10.4 Universal constraints description examples190 11 Metadata adaptability195 11.1 Introduction195 11.2 MetadataAdaptation syntax195 11.3 MetadataAdaptation semantics .197 11.4 MetadataAdaptation examples.199 12 Session mobility tools 205 12.1 Introduction205 12.2 Format of a DI for session mobilit
37、y .206 12.3 SessionMobility syntax.207 12.4 SessionMobility semantics 208 12.5 Reconstructing a session.209 12.6 Session transfer example.210 BSISO/IEC210007:2004IS/OIE00012 C-7:002(4)E I SO/IE4002 C All irthgs serervde vii13 DIA configuration tools 211 13.1 Introduction . 211 13.2 DIAConfiguration
38、syntax 211 13.3 DIAConfiguration semantics 212 Annex A (normative) Classification Schemes. 214 A.1 Introduction . 214 A.2 Classification Schemes 214 A.2.1 ThreeDBenchmarkCS . 214 A.2.2 AdaptationQoSCS . 215 A.2.3 AQoSRoundingMethodCS 248 A.2.4 CPUBenchmarkCS 248 A.2.5 DeviceClassCS 249 A.2.6 Graphic
39、sCodingFormatCS. 250 A.2.7 InvariantDimensionCS 251 A.2.8 KeyInputCS 251 A.2.9 LocationTypeCS 251 A.2.10 MediaInformationCS . 252 A.2.11 PlaceTypeCS . 255 A.2.12 RenderingFormatCS . 259 A.2.13 SceneCodingFormatCS 260 A.2.14 SegmentDecompositionInfoCS . 262 A.2.15 StackFunctionOperatorCS . 264 Annex
40、B (informative) Usage of the BSDLink tool 270 B.1 Introduction . 270 B.2 Overview of the adaptation architecture 270 B.3 Example instances 273 B.3.1 Introduction . 273 B.3.2 Usage environment description 274 B.3.3 BSDLink . 275 B.3.4 Steering description . 276 B.3.5 Further constraining the usage an
41、d usage environment of a Digital Item . 278 B.3.6 Bitstream Syntax Description 282 B.3.7 BSD transformation 297 B.3.8 Resources 309 Annex C (informative) Usage of DIA Configuration 310 C.1 Example 1. 310 C.2 Example 2. 313 C.3 Example 3. 314 Annex D (informative) Address corrections in (g)BS Descrip
42、tions for multi-step adaptations . 316 Annex E (informative) UCD-based adaptation decision making engine. 317 E.1 Introduction . 317 E.2 ADTE architectures. 317 E.3 UCD based ADTE processing model 318 Annex F (informative) Patent Statements 321 Annex G (informative) Schema 322 G.1 Schema definition
43、for schema tools (clause 4) . 322 G.2 Schema definition for usage environment descriptions tools (clause 6) . 323 G.3 Schema definition for Terminal and network quality of service tools (clause 8). 349 Bibliography . 355 BSISO/IEC210007:2004IS/OIE00012 C-7:002(4)E viii I SO/IE4002 C All irthgs serer
44、vdeForeword ISO (the International Organization for Standardization) and IEC (the International Electrotechnical Commission) form the specialized system for worldwide standardization. National bodies that are members of ISO or IEC participate in the development of International Standards through tec
45、hnical committees established by the respective organization to deal with particular fields of technical activity. ISO and IEC technical committees collaborate in fields of mutual interest. Other international organizations, governmental and non-governmental, in liaison with ISO and IEC, also take p
46、art in the work. In the field of information technology, ISO and IEC have established a joint technical committee, ISO/IEC JTC 1. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of the joint technical committee is to prepare Int
47、ernational Standards. Draft International Standards adopted by the joint technical committee are circulated to national bodies for voting. Publication as an International Standard requires approval by at least 75 % of the national bodies casting a vote. The International Organization for Standardiza
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49、tent rights have assured the ISO and IEC that they are willing to negotiate licences under reasonable and non-discriminatory terms and conditions with applicants throughout the world. In this respect, the statements of the holders of these patent rights is registered with the ISO and IEC. Information may be obtained from the companies listed in Annex F. Attention is drawn to the possibility that some of the elements of this document may be the sub
