hash stringlengths 32 32 | doc_id stringlengths 7 13 | section stringlengths 3 121 | content stringlengths 0 2.2M |
|---|---|---|---|
9513ad827c8fd5eb84cd8a245fa99b13 | 102 812 | 14.9.1 Syntax of the textual service identifier | . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 401 |
9513ad827c8fd5eb84cd8a245fa99b13 | 102 812 | 14.9.2 Handling of the textual service identifiers within the MHP terminal | . . . . . . . . . . . . . . . . . . . . . . . . . 402 |
9513ad827c8fd5eb84cd8a245fa99b13 | 102 812 | 14.10 CA system | . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 402 |
9513ad827c8fd5eb84cd8a245fa99b13 | 102 812 | 14.10.1 Service selection | . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 402 |
9513ad827c8fd5eb84cd8a245fa99b13 | 102 812 | 14.10.2 Media component selection | . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 402 |
9513ad827c8fd5eb84cd8a245fa99b13 | 102 812 | 14.10.3 Non-media component selection | . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 402 |
9513ad827c8fd5eb84cd8a245fa99b13 | 102 812 | 15 Detailed platform profile definitions | . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 404 |
9513ad827c8fd5eb84cd8a245fa99b13 | 102 812 | 15.1 PNG - restrictions | . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 407 |
9513ad827c8fd5eb84cd8a245fa99b13 | 102 812 | 15.2 Minimum media formats supported by DVB-J APIs | . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 407 |
9513ad827c8fd5eb84cd8a245fa99b13 | 102 812 | 15.3 JPEG - restrictions | . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 407 |
9513ad827c8fd5eb84cd8a245fa99b13 | 102 812 | 15.4 Locale support | . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 407 |
9513ad827c8fd5eb84cd8a245fa99b13 | 102 812 | 15.5 Video raster format dependencies | . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 408 |
9513ad827c8fd5eb84cd8a245fa99b13 | 102 812 | 15.5.1 25 Hz standard definition | . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 408 |
9513ad827c8fd5eb84cd8a245fa99b13 | 102 812 | 15.5.1.1 Logical pixel resolution | . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 408 |
9513ad827c8fd5eb84cd8a245fa99b13 | 102 812 | 16 Registry of Constants | . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 409 |
9513ad827c8fd5eb84cd8a245fa99b13 | 102 812 | 16.1 System constants | . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 409 |
9513ad827c8fd5eb84cd8a245fa99b13 | 102 812 | 16.2 DVB-J constants | . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 409 |
9513ad827c8fd5eb84cd8a245fa99b13 | 102 812 | 16.2.1 Public and Protected final static primitive fields from DVB packages | . . . . . . . . . . . . . . . . . . . . . . . . 409 |
9513ad827c8fd5eb84cd8a245fa99b13 | 102 812 | 17 Internet access clients | . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 413 |
9513ad827c8fd5eb84cd8a245fa99b13 | 102 812 | 17.1 Referencing DVB services and content within WWW content | . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 413 |
9513ad827c8fd5eb84cd8a245fa99b13 | 102 812 | 17.2 Minimum requirements for internet clients | . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 413 |
9513ad827c8fd5eb84cd8a245fa99b13 | 102 812 | 17.3 Internet streamed media | . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 413 |
9513ad827c8fd5eb84cd8a245fa99b13 | 102 812 | 17.4 Internet connection management | . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 414 Annex A (normative): External references; errata, clarifications and exemptions . . . . . . . 415 A.1 Void. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ... |
9513ad827c8fd5eb84cd8a245fa99b13 | 102 812 | 2.1 Normative references | 6$'!9+;;+G.#/!*'9'*'#&'(!(+&=>'#-,!%*'!#'&',,%*?!9+*!-$'!%88;.&%-.+#!+9!-$'!8*','#-!(+&=>'#-<! ! WIX! Y1"!IZ!T!Y+;+*.>'-*?TF!Y1"F!S.'##%<! ! W0X! Y5@)3B115Q7!T6$'!Y+>>+#!5:R'&-!@'[=',-!)*+K'*7!3*&$.-'&-=*'!%#(!L8'&.9.&%-.+#TF!5:R'&-! O%#%/'>'#-!N*+=8<! 456"7! 32%.;%:;'!%-!$--87BBGGG<+>/<+*/B&/.D:.#B(+&\9+*>%;B]VD]^DI0<... |
9513ad827c8fd5eb84cd8a245fa99b13 | 102 812 | 2.2 Informative references | BG*!Z4664I./K!5*Z*5*/-*7!74-;)*/:+!(5*!/4:!/*-*++(5?!Z45!:G*!(,,6.-(:.4/!4Z!:G*!,5*+*/:!74-;)*/:!8;:!:G*?! (++.+:!:G*!;+*5!I.:G!5*K(57!:4!(!,(5:.-;6(5!+;8^*-:!(5*(! ".@#&!! 9C'C2C9!C'!]$$<%=#D!Ta4)*+:.-!(/7!+.).6(5!*6*-:54/.-!*Y;.,)*/:!./:*5-4//*-:.4/! 5*Y;.5*)*/:+D!V*5.:*6*F.+.4/!-4//*-:45T@! ! ".@P&!! CBWN!BL!#$#!P##... |
9513ad827c8fd5eb84cd8a245fa99b13 | 102 812 | 8.6.4.2.1.1 opacity | opacity: Objects may be rendered in a semi-transparent fashion in DVB-HTML using the opacity property defined in SVG [105]. Opacity can be thought of as a postprocessing operation. Conceptually, after an object or group of objects is rendered into an RGBA off-screen image, the opacity setting specifies how to blend the... |
9513ad827c8fd5eb84cd8a245fa99b13 | 102 812 | 8.6.4.2.1.2 dvb-compose-rule | dvb-compose-rule: The default rule used is the src-over rule. Table 21: Relationship between media groups and media types MediaTypes Media Groups continuous/paged visual/aural/tactile grid/bitmap interactive/static dvb-tv continuous visual bitmap both ETSI ETSI TS 102 812 V1.3.1 (2011-03) ETSI TS 102 812 V1.3.1 (2012-0... |
9513ad827c8fd5eb84cd8a245fa99b13 | 102 812 | 8.6.4.2.1.3 dvb-clip-video | See clause 8.6.5.8.1.1 "dvb-clip-video" on page 123. |
9513ad827c8fd5eb84cd8a245fa99b13 | 102 812 | 8.6.4.2.1.4 focus traversal | See clause 8.6.5.10 "Focus traversal and short-cuts" on page 123 |
9513ad827c8fd5eb84cd8a245fa99b13 | 102 812 | 8.6.4.2.1.5 viewports | See clause 8.6.5.3.2 "The @dvb-viewport rule" on page 114 8.6.4.2.2 Policy rules When several media types are present in a DVB-HTML document, user agents shall apply the properties settings that are included in the most appropriate @media rule. In this case, the user agent shall ignore properties settings that are incl... |
9513ad827c8fd5eb84cd8a245fa99b13 | 102 812 | 8.6.5.3.3.1 Viewport properties | The following properties may be used inside a @dvb-viewport rule. DOM access to these properties is provided by clause 8.6.5.9 "DOM Access to CSS" on page 123. Implementations are not required to respect property requests in the @dvb-viewport rule that would require the implementation to exceed the minimum requirements... |
9513ad827c8fd5eb84cd8a245fa99b13 | 102 812 | 8.6.5.3.3.2 Other viewport properties | These properties will mostly be useful for interrogation of the video processing being performed so that a presentation can be tailored to fit, but they also allow the manipulation of the background devices. These are used after the viewport is selected (see clause 8.6.5.3.4 "Pseudo classes" on page 119), and allow the... |
9513ad827c8fd5eb84cd8a245fa99b13 | 102 812 | 8.6.5.3.3.3 n planes | The "n" is to be replaced by an integer number greater than or equal to zero defining the plane in the video layers, where 0 is the furthest plane from the viewer. The "-n" is optional with background-video-rect equivalent to background-video-rect-0. 8.6.5.3.4 Pseudo classes Viewports can be labelled with pseudo-classe... |
9513ad827c8fd5eb84cd8a245fa99b13 | 102 812 | 8.6.5.8.1.1 dvb-clip-video | The mapping to the source video is provided by the dvb-clip-video property which allows an arbitrary portion of the video to be placed within the element. dvb-clip-video: The dvb-clip-video property defines the bounding box of the source rectangle in the source video allowing an arbitrary portion of the video to be pla... |
c08f9f65f04bba26a6f110caaf2548ca | 102 809 | 1 Scope | The present document defines a framework for the signalling and carriage of interactive applications or services in broadcast and broadband networks. This framework covers: • Signalling interactive applications or services in both classical broadcast networks and broadband networks. • Distributing the files of interact... |
c08f9f65f04bba26a6f110caaf2548ca | 102 809 | 2 References | |
c08f9f65f04bba26a6f110caaf2548ca | 102 809 | 2.1 Normative references | References are either specific (identified by date of publication and/or edition number or version number) or non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the referenced document (including any amendments) applies. Referenced documents which a... |
c08f9f65f04bba26a6f110caaf2548ca | 102 809 | 2.2 Informative references | References are either specific (identified by date of publication and/or edition number or version number) or non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the referenced document (including any amendments) applies. NOTE: While any hyperlinks i... |
c08f9f65f04bba26a6f110caaf2548ca | 102 809 | 3 Definitions and abbreviations | |
c08f9f65f04bba26a6f110caaf2548ca | 102 809 | 3.1 Definitions | For the purposes of the present document, the following terms and definitions apply: abstract service: mechanism to group a set of related unbound applications where some aggregator has taken the responsibility to ensure that the set of related applications work together NOTE: This is a generalization of a broadcast se... |
c08f9f65f04bba26a6f110caaf2548ca | 102 809 | 3.2 Abbreviations | For the purposes of the present document, the following abbreviations apply: ADF Application Description File AFI Authority and Format Identifier AIT Application Information Table API Application Programming Interface ASN.1 Abstract Syntax Notation 1 AV Audio Video BIOP Broadcast Inter-ORB Protocol CORBA Common Object ... |
c08f9f65f04bba26a6f110caaf2548ca | 102 809 | 4 Application models | |
c08f9f65f04bba26a6f110caaf2548ca | 102 809 | 4.1 Introduction | The present document can enable a wide range of different application models depending on which of the optional features are selected. Below is a list of some of these, sorted from simplest to more complex: • Applications bound to exactly one broadcast service which are started when that service is selected and stopped... |
c08f9f65f04bba26a6f110caaf2548ca | 102 809 | 4.2 Starting and stopping applications | |
c08f9f65f04bba26a6f110caaf2548ca | 102 809 | 4.2.1 Applications bound to broadcast services | When a broadcast service is selected, the following shall apply: • The receiver shall determine if there are any applications signalled as being related to the service as defined by clause 5.3 or clause 5.4 of the present document. • Applications which are part of that service and which are signalled with a control cod... |
c08f9f65f04bba26a6f110caaf2548ca | 102 809 | 4.2.2 Applications bound to a content on demand item | Applications bound to a content on demand item will either be handled identically to applications bound to parts of a broadcast service (including the possibility for dynamic changes during the content on demand item) or will be valid for the entire duration of the content item. In the latter case, applications whose c... |
c08f9f65f04bba26a6f110caaf2548ca | 102 809 | 4.2.3 Applications bound to a network operator | Applications bound to a network operator may run at any time when a receiver is connected to that operator's network. Applications with a control code of AUTOSTART shall be automatically started when the receiver is first connected to that network or when the application(s) are added to the signalling. Where receivers ... |
c08f9f65f04bba26a6f110caaf2548ca | 102 809 | 5 Signalling interactive applications and services | |
c08f9f65f04bba26a6f110caaf2548ca | 102 809 | 5.1 Semantics | This clause covers the following topics: • How the receiver identifies the applications associated with a service and finds the locations from which to retrieve them. • The signalling that enables the broadcast to manage the lifecycles of applications. • How the receiver can identify the sources of broadcast data requi... |
c08f9f65f04bba26a6f110caaf2548ca | 102 809 | 5.2 Application metadata | |
c08f9f65f04bba26a6f110caaf2548ca | 102 809 | 5.2.1 Introduction | Applications may have a number of items of metadata associated with them. These are as follows: • Type: Identifies the platform needed to run or present the application. • Identifier: Identifies the application. • Control code: Defines the lifecycle state of the application. • Profile: Defines the minimum profile of re... |
c08f9f65f04bba26a6f110caaf2548ca | 102 809 | 5.2.2 Application types | |
c08f9f65f04bba26a6f110caaf2548ca | 102 809 | 5.2.2.1 Semantics | All applications have an associated type in order that a receiver can discard applications whose types it does not support. NOTE: The application type is not sufficient to guarantee that a receiver can run an application. For more information, see the metadata relating to application profiles in clause 5.2.5. |
c08f9f65f04bba26a6f110caaf2548ca | 102 809 | 5.2.2.2 MPEG-2 Encoding | In the MPEG-2 encoding, application types are identified by a 15-bit number. This enables receivers to filter out signalling for unsupported application types. Defined application types are registered with DVB [15]. For historical reasons, application types are registered with the ID MHP_Application_Type_ID. |
c08f9f65f04bba26a6f110caaf2548ca | 102 809 | 5.2.2.3 XML Encoding | In the XML encoding, application types are strings, typically a MIME type. See clause 5.4.4.11. |
c08f9f65f04bba26a6f110caaf2548ca | 102 809 | 5.2.3 Application identification | |
c08f9f65f04bba26a6f110caaf2548ca | 102 809 | 5.2.3.1 Semantics | Each application has an associated application identifier. This consists of two parts, the organisation_id and the application_id as follows: organisation_id: This field is a globally unique value identifying the organization that is responsible for the application. These values are registered with DVB [15]. Values of ... |
c08f9f65f04bba26a6f110caaf2548ca | 102 809 | 5.2.3.2 MPEG-2 encoding | This is a 6 byte field with the following structure: Table 2: Application identifier syntax No. of bits application_identifier { organisation_id 32 application_id 16 } The same application_identifier() shall appear only once within the set of applications signalled for the same application type. |
c08f9f65f04bba26a6f110caaf2548ca | 102 809 | 5.2.3.3 XML encoding | The application identifier is defined by the following XML fragment where the elements are defined above. <xsd:complexType name="ApplicationIdentifier"> <xsd:sequence> <xsd:element name="orgId" type="xsd:unsignedInt"/> <xsd:element name="appId" type="xsd:unsignedShort"/> </xsd:sequence> </xsd:complexType> |
c08f9f65f04bba26a6f110caaf2548ca | 102 809 | 5.2.4 Application control codes | |
c08f9f65f04bba26a6f110caaf2548ca | 102 809 | 5.2.4.1 Semantics | This control code allows the broadcaster to signal to the receiver what to do with the application with regard to its lifecycle. The set of codes have some differences between application types and precise semantics are defined on an application type specific basis. If the receiver receives a code that it does not reco... |
c08f9f65f04bba26a6f110caaf2548ca | 102 809 | 5.2.4.2 MPEG-2 encoding | The application control code is signalled through the application_control_code field for the application in the AIT (see clause 5.3.4.6). The values are shown in table 3. |
c08f9f65f04bba26a6f110caaf2548ca | 102 809 | 5.2.4.3 XML encoding | The XML encoding of the application control code is defined by the following fragment where the values are as defined in table 3: <xsd:simpleType name="ApplicationControlCode"> <xsd:restriction base="xsd:string"> <xsd:enumeration value="AUTOSTART"/> <xsd:enumeration value="PRESENT"/> <xsd:enumeration value="DESTROY"/> ... |
c08f9f65f04bba26a6f110caaf2548ca | 102 809 | 5.2.5 Platform profiles | |
c08f9f65f04bba26a6f110caaf2548ca | 102 809 | 5.2.5.1 Semantics | Some platform specifications may define a number of different profiles, and potentially different versions of those profiles. These fields define the minimum platform profile and version of that profile required by the application. Platform specifications that use this information need to define what it means in their ... |
c08f9f65f04bba26a6f110caaf2548ca | 102 809 | 5.2.5.2 MPEG-2 encoding | Profiles are encoded as part of the application descriptor as follows: Table 4: Application profile encoding No. of bits Identifier Value application_profiles_length 8 uimsbf for( i=0; i<N; i++ ) { application_profile 16 uimsbf version.major 8 uimsbf version.minor 8 uimsbf version.micro 8 uimsbf } |
c08f9f65f04bba26a6f110caaf2548ca | 102 809 | 5.2.5.3 XML encoding | The XML encoding of the profiles is as follows: <xsd:complexType name="MhpVersion"> <xsd:sequence minOccurs="1"> <xsd:element name="profile" type="ipi:Hexadecimal16bit "/> <xsd:element name="versionMajor" type="ipi:Hexadecimal8bit "/> <xsd:element name="versionMinor" type="ipi:Hexadecimal8bit "/> <xsd:element name="ver... |
c08f9f65f04bba26a6f110caaf2548ca | 102 809 | 5.2.6 Application visibility | |
c08f9f65f04bba26a6f110caaf2548ca | 102 809 | 5.2.6.1 Semantics | The visibility field specifies whether the application is suitable to be offered to the end-user for them to decide if the application should be launched. Table 5 lists the allowed values of this field. NOTE: This applies equally to any generic launching menu application provided by the content or service provider or t... |
c08f9f65f04bba26a6f110caaf2548ca | 102 809 | 5.2.6.2 MPEG-2 encoding | Application visibility is encoded in the visibility field of the application descriptor in the AIT (see clause 5.3.5.3). Possible values for this field are given in table 5. |
c08f9f65f04bba26a6f110caaf2548ca | 102 809 | 5.2.6.3 XML encoding | The XML encoding of the visibility is as follows: <xsd:simpleType name="VisibilityDescriptor"> <xsd:restriction base="xsd:string"> <xsd:enumeration value="NOT_VISIBLE_ALL"/> <xsd:enumeration value="NOT_VISIBLE_USERS "/> <xsd:enumeration value="VISIBLE_ALL"/> </xsd:restriction> </xsd:simpleType> See table 5 in clause 5.... |
c08f9f65f04bba26a6f110caaf2548ca | 102 809 | 5.2.7 Application priority | |
c08f9f65f04bba26a6f110caaf2548ca | 102 809 | 5.2.7.1 Semantics | The application priority identifies a relative priority between the applications signalled in a service: • Where there is more than one application with the same application identification in a service, this priority shall be used to determine which application is started. • Where there are insufficient resources to co... |
c08f9f65f04bba26a6f110caaf2548ca | 102 809 | 5.2.7.2 MPEG-2 encoding | Application priority is encoded in the application_priority field of the application_descriptor (see clause 5.3.5.3). |
c08f9f65f04bba26a6f110caaf2548ca | 102 809 | 5.2.7.3 XML encoding | Application priority is encoded in the priority field of the application descriptor (see clause 5.4.4.4). |
c08f9f65f04bba26a6f110caaf2548ca | 102 809 | 5.2.8 Application icons | |
c08f9f65f04bba26a6f110caaf2548ca | 102 809 | 5.2.8.1 Semantics | One or more icons may be associated with an application. The content format for these possible icons shall be PNG. Platform specifications may impose additional restrictions on the content format of icons. Each icon has an icon locator and a set of flags that identify the size and aspect ratio of the icon. The icon loc... |
c08f9f65f04bba26a6f110caaf2548ca | 102 809 | 5.2.8.2 MPEG-2 encoding | Information relating to the application icons is encoded in the application_icons_descriptor. Table 6: Application icons descriptor syntax No.of bits Identifier Value application_icons_descriptor() { descriptor_tag 8 uimsbf 0x0B descriptor_length 8 uimsbf icon_locator_length 8 uimsbf for (i=0; i<N; i++) { icon_locator_... |
c08f9f65f04bba26a6f110caaf2548ca | 102 809 | 5.2.8.3 XML encoding | Icon information is encoded in one or more IconDescriptor elements: <xsd:complexType name="IconDescriptor"> <xsd:attribute name="filename" type="xsd:string" use="required"/> <xsd:attribute name="size" type="xsd:unsignedShort" use="optional"/> <xsd:attribute name="aspectRatio" type="mhp:AspectRatio" use="optional"/> ETS... |
c08f9f65f04bba26a6f110caaf2548ca | 102 809 | 5.2.9 Graphics constraints | |
c08f9f65f04bba26a6f110caaf2548ca | 102 809 | 5.2.9.1 Semantics | |
c08f9f65f04bba26a6f110caaf2548ca | 102 809 | 5.2.9.1.0 Introduction | Applications may be constrained in the graphics resolutions they support, or in their ability to handle changes in the graphics or video configuration. Constraints on the graphical capabilities of an application can be specified using a number of fields, defined below. Applications where this information is not signall... |
c08f9f65f04bba26a6f110caaf2548ca | 102 809 | 5.2.9.1.1 Supported graphics configurations | Supported graphics configurations for an application are given by a list of one or more of supported configurations (listed in table 9). The full screen configurations are sorted from most preferred to least preferred. |
c08f9f65f04bba26a6f110caaf2548ca | 102 809 | 5.2.9.1.2 Running without a visible UI | The can_run_without_visible_ui flag indicates whether the application needs to display a user interface. If this flag is set then the application can usefully run with no user interface visible. If this flag is not set then the application can only usefully run with a user interface visible. Applications signalled with... |
c08f9f65f04bba26a6f110caaf2548ca | 102 809 | 5.2.9.1.3 Handling changed graphics configurations | The handles_configuration_changed flag indicates whether the application is capable of handling changes in the graphics configuration. If this flag is set then the application can handle changes in the graphics configuration between the supported graphics configurations for this application (see clause 5.2.9.1.1). If t... |
c08f9f65f04bba26a6f110caaf2548ca | 102 809 | 5.2.9.1.4 Handling externally controlled video | The handles_externally_controlled_video flag indicates whether an application can usefully run when the presentation of the video is under the control of a second application external to its service. If this flag is set then the application can handle being displayed under these circumstances. Examples include picture ... |
c08f9f65f04bba26a6f110caaf2548ca | 102 809 | 5.2.9.2 MPEG-2 encoding | The graphics_constraints_descriptor signals which constraints apply to the application. Table 8: Graphics constraints descriptor syntax No. of bits Identifier Value graphics_constraints_descriptor() { descriptor_tag 8 uimsbf 0x14 descriptor_length 8 uimsbf reserved_future_use 5 bslbf can_run_without_visible_ui 1 bslbf ... |
c08f9f65f04bba26a6f110caaf2548ca | 102 809 | 5.2.9.3 XML encoding | The XML encoding is not defined in the present document. |
c08f9f65f04bba26a6f110caaf2548ca | 102 809 | 5.2.10 Application usage | |
c08f9f65f04bba26a6f110caaf2548ca | 102 809 | 5.2.10.1 Semantics | This identifies that the application provides a specific, well-known, service; for example teletext, EPG or chat. Receivers may include a shortcut to start these services, for example a remote control key. Receivers may also include a native UI offering access to these services. |
c08f9f65f04bba26a6f110caaf2548ca | 102 809 | 5.2.10.2 MPEG-2 encoding | Table 10: Application usage descriptor No. of bits Identifier Value application_usage_descriptor() { descriptor_tag 8 uimsbf 0x16 descriptor_length 8 uimsbf usage_type 8 uimsbf } descriptor_tag: This 8 bit field with value 0x16 identifies the descriptor. ETSI ETSI TS 102 809 V1.3.1 (2017-06) 26 usage_type: This 8 bit f... |
c08f9f65f04bba26a6f110caaf2548ca | 102 809 | 5.2.10.3 XML encoding | The XML encoding of the application usage type is given by the ApplicationUsageDescriptor element: <xsd:complexType name="ApplicationUsageDescriptor"> <xsd:sequence> <xsd:element name="ApplicationUsage" type="xsd:anyURI" minOccurs="0" maxOccurs="unbounded"/> </xsd:sequence> </xsd:complexType> The ApplicationUsage eleme... |
c08f9f65f04bba26a6f110caaf2548ca | 102 809 | 5.2.11 Stored applications | |
c08f9f65f04bba26a6f110caaf2548ca | 102 809 | 5.2.11.1 Semantics | |
c08f9f65f04bba26a6f110caaf2548ca | 102 809 | 5.2.11.1.0 Introduction | Storable applications follow the standard application signalling model defined in the present document. A receiver that does not provide storage or does not recognize these extensions will perceive storable applications as viable applications that potentially can be run from the broadcast connection. The signalling des... |
c08f9f65f04bba26a6f110caaf2548ca | 102 809 | 5.2.11.1.1 Lifecycle of stored applications | Stored applications may be broadcast related or stand-alone. If an application is broadcast related then the application's life cycle is controlled by the broadcast service. Such applications are suitable for caching but not for running as a stand-alone application. For stored broadcast related applications the broadca... |
c08f9f65f04bba26a6f110caaf2548ca | 102 809 | 5.2.11.1.2 Application versioning | The version field provides the version number of the application. This number starts at zero and increments by one each time any of the files listed in the Application Description File (see clause 5.2.12) change or the contents of the Application Description File itself change. Used values shall never be reused. In the... |
c08f9f65f04bba26a6f110caaf2548ca | 102 809 | 5.2.11.1.3 Launching applications from the cache | The launchable_completely_from_cache flag indicates whether a connection to a transport protocol is required. When set, this indicates that this application can be run entirely from cache, without connecting to the transport protocol signalled in the application's signalling, assuming that all the critical files have b... |
c08f9f65f04bba26a6f110caaf2548ca | 102 809 | 5.2.11.1.4 Storage priority | The storage priority of an application indicates the priority of this application for storage relative to the other applications signalled in this service. It is only meaningful for applications which have been proactively cached by the receiver implementation and shall be ignored otherwise. Higher values indicate more... |
c08f9f65f04bba26a6f110caaf2548ca | 102 809 | 5.2.11.2 MPEG-2 encoding | Information about the storage capabilities for an application is carried in the application storage descriptor. Table 14: Syntax of application storage descriptor No.of bits Identifier application_storage_descriptor() { descriptor_tag 8 uimsbf 0x10 descriptor_length 8 uimsbf storage_property 8 uimsbf not_launchable_fro... |
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