1、 ATIS-0800046 IPTV EPG METADATA FOR LIGHT WEIGHT DEVICES ATIS is the leading technical planning and standards development organization committed to the rapid development of global, market-driven standards for the information, entertainment and communications industry. More than 200 companies activel
2、y formulate standards in ATIS 17 Committees, covering issues including: IPTV, Cloud Services, Energy Efficiency, IP-Based and Wireless Technologies, Quality of Service, Billing and Operational Support, Emergency Services, Architectural Platforms and Emerging Networks. In addition, numerous Incubator
3、s, Focus and Exploratory Groups address evolving industry priorities including Smart Grid, Machine-to-Machine, Networked Car, IP Downloadable Security, Policy Management and Network Optimization. ATIS is the North American Organizational Partner for the 3rd Generation Partnership Project (3GPP), a m
4、ember and major U.S. contributor to the International Telecommunication Union (ITU) Radio and Telecommunications Sectors, and a member of the Inter-American Telecommunication Commission (CITEL). ATIS is accredited by the American National Standards Institute (ANSI). For more information, please visi
5、t . Notice of Disclaimer however, the specifications in this standard are normative. In the event of any discrepancy between the specifications in this document and the definitions in the accompanying XML schema, the specifications in this document shall take precedence. The XML namespace for the EP
6、G Lite metadata XML schema is: http:/www.atis.org/ServiceDelivery/IPTV/EPG/2/schema The recommended abbreviation for this schema is “epg”, defined by: xmlns:epg=“http:/www.atis.org/ServiceDelivery/IPTV/EPG/2/schema“ This is the same namespace that is used for the EPG Full Profile XML schema. The EPG
7、 Lite XML schema file that accompanies this standard contains declarations of types additional to those in the EPG Full XML schema. It incorporates the EPG Full XML schema via an “include” ATIS-0800046 3 statement, so that any types in the EPG Full schema and referenced in the definitions of these a
8、dditional types will be present, thereby resulting in a valid schema. This EPG Lite XML schema file can be used to validate EPG Lite XML documents. Note, however, that only the EPGMainLite delivery fragment is a valid XML document under the schema, since the top-level elements in the other delivery
9、fragments are not valid root elements. Therefore, in order to validate the other fragments, they need to be inserted into the framework of the EPGMainLite element. (The situation is similar for validating EPG Full fragments. They need to be inserted into the framework of the EPGMain element.) 4.2 EP
10、G Lite XML Schema The XML schema for the EPG Lite Profile is derived from the EPG Full XML schema defined in section 5 of ATIS-0800020 1 by imposing restrictions on certain XML type definitions, as specified in the remainder of this section. The new Lite types derived in this way are defined in the
11、“epg:” name space, but have new type names. The elements corresponding to these new Lite types shall retain their original names, except for the “EPGMain” element. The element in the EPG Lite Profile corresponding to the “EPGMain” element shall be named “EPGMainLite”. Thus, when elements and attribu
12、tes are described as being in the EPG Lite Profile, that means they are contained in (are descendents of) the “EPGMainLite element”. Certain classification schemes from the EPG Main Profile are excluded from the EPG Lite Profile, and certain elements of two of the retained classifications schemes ar
13、e excluded from use in the EPG Lite Profile. Any of the EPG Full XML type definitions and classification scheme definitions not mentioned in this section shall remain unchanged in the EPG Full Profile and simply be referenced as needed in the EPG Lite Profile. The XML type of a number of elements in
14、 the EPG Full Profile is mpeg7:TextualType. In the EPG Lite Profile, the optional “phoneticTranscription” and “phoneticAlphabet” attributes of such elements shall not appear. 4.2.1 EPGMainLiteType The type of the “EPGMainLite” element shall be the “epg:EPGMainLiteType”. The definition of the “epg:EP
15、GMainLiteType” shall be derived from the definition of the “epg:EPGMainType” in the EPG Full Profile by modifying the type definition of its “ProgramDescription” element as specified in section 5.2.2 below. The types of the other child elements of the “EPGMainLite” element shall remain unchanged. 4.
16、2.2 ProgramDescriptionLiteType The type of the “ProgramDescription” element in the EPG Lite Profile shall be the “epg:ProgramDescriptionLiteType”. The “epg:ProgramDescriptionLiteType” definition shall be derived from the definition of the “epg:ProgramDescriptionType” in the EPG Full Profile by exclu
17、ding certain child elements as indicated in Table 1 below and modifying the type definition of all the other child elements, except for the “PurchaseInformationTable” element, as specified in the remainder of section 5.2. ATIS-0800046 4 Table 1: Excluded/Retained Elements for ProgramDescriptionLiteT
18、ype Excluded Retained ProgramInformationTable (modified) GroupInformationTable (modified)SuperGroupInformationTable (modified) ProgramLocationTable (modified) ServiceInformationTable (modified)CreditsInformationTable ProgramReviewTable PurchaseInformationTable 4.2.3 Table Types The names of the type
19、s of the tables in the “ProgramDescription” element in the EPG Lite Profile, with the exception of the “PurchaseInformationTable”, shall be obtained by putting “Lite” immediately before “Type” in the type names of the corresponding types in the EPG Full Profile. The definitions of these Lite table t
20、ypes shall be obtained by putting “Lite” immediately before “Type” in the type names of the sub-elements in the corresponding types in the EPG Full Profile. The “PurchaseInformationTable” shall retain the same type name and definition in the EPG Lite Profile as in the EPG Full Profile. For example,
21、the EPG Lite Profile version of the “ProgramInformationTable” element is: 4.2.4 ProgramInformationLiteType The type of the “ProgramInformation” element in the EPG Lite Profile shall be the “epg:ProgramInformationLiteType”. The “epg:ProgramInformationLiteType” definition shall be derived from the def
22、inition of the “epg:ProgramInformationType” in the EPG Full Profile by excluding certain child elements as indicated in Table 2 below and modifying the type definitions of certain other child elements as specified in the remainder of section 5.2. Table 2: Excluded/Retained Elements/Attributes for Pr
23、ogramInformationLiteType Excluded Retained BasicDescription (modified) OtherIdentifierAVAttributes (modified)MediaAttribut (modified)MemberOf DerivedFrom ATIS-0800046 5 Excluded Retained EpisodeOf PartOfAggregatedProgram AggregationOf RequiredEEProfileprogramIdfragmentIdentification metadataOriginId
24、Refxml:lang 4.2.5 ProgramContentDescriptionLiteType The type of the “BasicDescription” sub-element of the “ProgramInformation” element in the EPG Lite Profile shall be the “epg:ProgramContentDescriptionLiteType”. The definition of the “epg:ProgramContentDescriptionLiteType” shall be derived from the
25、 definition of the “epg:BasicContentDescriptionType” in the EPG Full Profile by excluding or restricting certain child elements as indicated in Table 3 below. Table 3: Excluded/Retained Elements for ProgramContentDescriptionLiteType Excluded Retained Title (restricted) MediaTitle ShortTitleSynopsis
26、(restricted)PromotionalInformation ContentInfoURL Keyword GenreRRTParentalGuidance ParentalGuidance LanguageCaptionLanguage SignLanguage CreditsList (modified)AwardsList BoxOffice RelatedMaterial ProductionDate ProductionLocation ATIS-0800046 6 Excluded Retained CreationCoordinates DepictedCoordinat
27、es ReleaseInformation DurationPurchaseListprogramFormat copyRestrictions A Title element in a BasicDescription element of type epg:ProgramContent DescriptionLiteType shall have no more than 35 characters (corresponding to the “Medium” format). The Synopsis.length attribute of the “epg:ProgramContent
28、DescriptionLiteType” shall be restricted to the “short” value (no more than 90 characters). 4.2.6 GroupInformationLiteType The type of the “GroupInformation” element in the EPG Lite Profile shall be the “epg:GroupInformationLiteType”. The “epg:GroupInformationLiteType” definition shall be derived fr
29、om the definition of the “epg:GroupInformationType” in the EPG Full Profile by excluding certain child elements as indicated in Table 4 below and modifying the type definitions of certain child elements as specified in the remainder of section 5.2. Table 4: Excluded/Retained Elements/Attributes for
30、GroupInformationLiteType Excluded Retained GroupType BasicDescription (modified)MemberOf OtherIdentifierPartOfAggregatedGroup AggregationOf groupIdordered numOfItemsfragmentIdentification metadataOriginIdRefxml:lang serviceIDref ATIS-0800046 7 4.2.7 SuperGroupInformationLiteType The type of the “Sup
31、erGroupInformation” element in the EPG Lite Profile shall be the “epg:SuperGroupInformationLiteType”. The “epg:SuperGroupInformationLiteType” definition shall be derived from the definition of the “epg:SuperGroupInformationType” in the EPG Full Profile by excluding certain child elements as indicate
32、d in Table 5 below and modifying the type definitions of certain child elements as specified in the remainder of section 5.2. Table 5: Excluded/Retained Elements/Attributes for SuperGroupInformationLiteType Excluded Retained GroupType BasicDescription (modified)MemberOf OtherIdentifier groupId level
33、orderednumOfItems fragmentIdentificationmetadataOriginIdRef xml:lang serviceIDref 4.2.8 GroupContentDescriptionLiteType The type of the “BasicDescription” element contained in the “GroupInformation” and “SuperGroupInformation” elements in the EPG Lite Profile shall be the “epg:GroupContentDescriptio
34、nType”. The “epg:GroupContentDescriptionType” definition shall be derived from the “epg:ProgramContentDescriptionLiteType” definition by excluding or restricting certain child elements as indicated in Table 6 below. Table 6: Excluded/Retained Elements for GroupContentDescriptionLiteType Excluded Ret
35、ained Title (restricted) ShortTitle Synopsis (restricted) ContentInfoURL Keyword Genre RRTParentalGuidance ParentalGuidance Language CaptionLanguage ATIS-0800046 8 Excluded Retained SignLanguage CreditsList ReleaseInformation Duration PurchaseList copyRestrictions A Title element in a BasicDescripti
36、on element of type epg:GroupContentDescriptionLiteType shall have no more than 35 characters (corresponding to the “Medium” format). The Synopsis.length attribute of the “epg:ProgramContentDescriptionLiteType” shall be restricted to the “short” value (no more than 90 characters). 4.2.9 AVAttributesL
37、iteType The type of the “AVAttributes” elements in the EPG Lite Profile shall be the “epg:AVAttributesLiteType”. The definition of the “epg:AVAttributesLiteType” shall be derived from the definition of the “epg:AVAttributesType” in the EPG Full Profile by excluding certain child elements as indicate
38、d in Table 7 below and modifying the type definitions of certain other child elements as specified in the remainder of section 5.2. Table 7: Excluded/Retained Elements for AVAttributes Excluded Retained FileFormat FileSize System Bitrate DurationAudioAttributes (modified) VideoAttributes (modified)C
39、aptioningAttributes TrickModeRestrictions 4.2.10 AudioAttributesLiteType The type of the “AudioAttributes” elements in the EPG Lite Profile shall be the “epg:AudioAttributesLiteType”. The definition of the “epg:AudioAttributesLiteType” shall be derived from the definition of the “tva:AudioAttributes
40、Type” in the EPG Full Profile by excluding certain child elements as indicated in Table 8 below. ATIS-0800046 9 Table 8: Excluded/Retained Elements for AudioAttributesType Excluded Retained Coding NumOfChannels MixType AudioLanguage SampleFrequency BitsPerSample 4.2.11 VideoAttributesLiteType The ty
41、pe of the “VideoAttributes” elements in the EPG Lite Profile shall be the “epg:VideoAttributesLiteType”. The definition of the “epg:VideoAttributesLiteType” shall be derived from the definition of the “epg:VideoAttributesType” in the EPG Full Profile by excluding certain child elements as indicated
42、in Table 9 below. Table 9: Excluded/Retained Elements for VideoAttributesType Excluded Retained Coding Scan HorizontalSize VerticalSizeAspectRatio Color FrameRate ActiveFormatDescription 4.2.12 CreditsItemLiteType The type of the “CreditsList” elements in the EPG Lite Profile shall be “epg:CreditsLi
43、stLiteType”. The definition of the “epg:CreditsListLiteType” shall be derived from the definition of the “epg:CreditsListType” in the EPG Full Profile by changing the type of the “CreditsItem” element from “epg:CreditsItemType” to “epg:CreditsItemLiteType”. The definition of the “epg:CreditsItemLite
44、Type” shall be derived from the definition of the “epg:CreditsItemType” in the EPG Full Profile by changing the base of the extension from “epg:IIFAgentType” to “epg:IIFAgentLiteType” and changing the type of the “Character” element from “mpeg7:PersonNameType” to “epg:PersonNameLiteType” (defined be
45、low). The “epg:IIFAgentLiteType” definition shall be derived from the “epg:IIFAgentType” definition by excluding the “PersonNameIdRef” and “OrganizationNameIdRef” elements, changing the type of the “PersonName” element from “epg:PersonInformationType” to “epg:PersonNameLiteType”, and changing the ty
46、pe of the “OrganizationName” element from “epg:OrganizationInformationType” to “string”. ATIS-0800046 10 This change to the type for the “OrganizationName” element has the effect of excluding the “OrganizationURL” attribute and excluding the “xml:lang”, “phoneticTranscription”, and “phoneticAlphabet
47、” attributes. The “epg:PersonNameLiteType” shall be defined as follows: The semantics of the elements contained in the “epg:PersonNameLiteType” type definition shall be the same as the semantics for the corresponding elements of the “mpeg7:PersonNameType”. This change to the type for the “PersonName
48、” element has the effect of excluding its “PersonURL” sub-element and its “dateFrom”, “dateTo”, “type” (former|variant|main) and “xml:lang” attributes, plus excluding the “initial”, “abbrev”, “phoneticTranscription” and “phoneticAlphabet” attributes for each of “GivenName”, “FamilyName”, and “Title”
49、 strings. 4.2.13 ServiceInformationLiteType The type of the “ServiceInformation” element in the EPG Lite Profile shall be “epg:ServiceInformationLiteType”. The definition of the “epg:ServiceInformationLiteType” shall be derived from the type definition of the “epg:ServiceInformationType” in the EPG Full Profile by excluding or restricting certain child elements as indicated in Table 10 below. Table 10: Excluded/Retained Element/Attributes for ServiceInformationLiteType Excluded Retained Name Owner ServiceURL ServiceInfoURL LogoServiceDescription (restric
