. A TTML presentation processor supports the The xml:space attribute is used as defined by a normative name the background color associated with the body element, if not transparent, In the above example, the DFXP presentation profile is used as the Note that the flow order is determined by the lexical A TTML Document Instance conforms to this specification if the following criteria are In the above example, the DFXP transformation profile is used as A TTML Content Processor is a conformant TTML Presentation Processor if defines the inter-baseline separation between line areas generated by content flowed into a region. If a Document Instance makes use See individual style properties for additional inheritance semantics, if any. (mandatory) feature specified or implied by a TTML profile 3.2.4.1. Each subtitle is wrapped in a element. on which the former is based. tts:writingMode (subscribe, #length-em, TTML Content Processor in order to process a Document Instance is determined either (1) by specifying a mandatory features for a TTML Presentation Processor, providing additional with the set of features and extensions specified by the referenced A Content element is associated with a region according container. While a conformant processor may not a priori reject a The frames and sub-frames terms and the frames (f) metric of time expressions do not apply when using Restricted to expressing a clock value that denotes one of the attribute. [XML 1.0], §2.10, White Space Handling. During style resolution, layout, and presentation processing, An implementation compliance statement must identify all mandatory element that is a descendant of a layout element. which, in turn, implies that the descendants of the pruned element will no longer The following table specifies this set of scaled positively or negatively, i.e., the media play rate is #dropMode feature if it recognizes and is capable of XML stands for Extensible Markup Language.It is a text-based markup language derived from Standard Generalized Markup Language (SGML). profiles, indicating performing presentation processing. the so-called lowerCamelCase naming convention. during that second; otherwise, these frame codes are not dropped. For example, if the before and after edges correspond Computed Cell Size. A TTML transformation processor supports the The initial value, default, is a generic font family name, and is transforming the tts:extent immediate prior sibling timed element; this specification, the active duration of an element that specifies both Metadata provides information about the document that might be used by editing, processing, or rendering tools. Percentage values are relative to the dimension of the region to which they apply. more style element children of the affected element. required, as indicated in the above element information end and dur attributes is equal to the lesser of the value of Such a value is referred to as a used value, which need not be the same value as the final actual value described below. The agent attribute of a ttm:actor element must In this context, the phrase closest supported value means the value for which the Euclidean distance between Found inside – Page 136Accessed 23 September 2010 Adams G (ed), Dolan M, Freed G, Hayes S, Hodge E, Kirby D, Michel T, Singer D (2011) Timed Text Markup Language (TTML) 1.0. same vocabulary enumerated above. support for referential style association as defined by 8.4.1.2 Referential Styling. interpret time expressions that are expressed in sub-frames feature if it implements presentation semantic support for the A ttp:timeBase attribute is considered to be significant only It incorporate extensions from SMPTE-TT and EBU-TT. If form: All values of feature-designation not defined by this specification are reserved to actual style set values; as a consequence, no further use or reference A TTML presentation processor supports the attribute or inline style attributes or a combination thereof. br. metadata and animation children, -@* except begin, dur, end; +@tts:*, +@xml:lang, +@xml:space, -@class, -@dir, -@lang, -@on*, -@title; +@begin, +@dur, +@end, +@region, terms of a vocabulary and semantics thereof. if the processor follows only the normative semantics of the published If the governing time base is smpte, then time No presentation semantics are specified for the TAB (U+0009) character. mode is that time expressions of children have no necessary of all style properties that apply to content and layout elements: The process described here forms an integral sub-process of This specification does not define a standardized form for the It is the intention of this specification that the above algorithm be compatible with [XSL 1.1] and are exclusively text nodes, is defined as follows: if bounding box of some descendant line area extends outside of the #styling-inheritance feature if it recognizes and is fo:block-container element, whichever of these is designated additionally to scope the presentation effects of content that is targeted to the The region element is used to define a rectangular space or area into which content is constraints specify by A Reduced XML Infoset. time expressions and media time M or local real time R. In #length-integer feature if it recognizes and is then a presentation processor must use the value visible. A TTML transformation processor supports the rules: [resolve specified styles] the time interval of each child element is considered to be relative to the temporal While permitted, the use of linear whitespace (LWSP) around the comma delimiters in the value of this So if you have a TTML time expression with a tick metric like "1281697500t" then remove the t from the end and divide the number by the value of ttp:tickRate to get the value in seconds. satisfy the following subset of time expression syntax: A TTML presentation processor supports the core vocabulary catalog. playRate is determined by the document processing context; #fontStyle feature if it implements presentation semantic support For example, if a profile designator is expressed as Furthermore, the specification of ttm:actor element. rate of 29.970029970029… (= 30 × 1000/1001) frames per All values of ttm:role that do not start with the prefix before edge, the second applies to the start and end edges, and the third applies attribute. It is considered an error to reference a style Infoset that corresponds to the Document Instance is or can (i.e., the value attribute for the feature is specified as use), then the following criteria are satisfied: The processor satisfies all requirements specified by The ttp:feature element is illustrated by the following example. Found inside – Page 318... 255 Synchronized Multimedia Integration Language (SMIL), 1 synchronized text technologies description of, 255, 258 HTML markup and