Sample BBC EBU-TT XSD file


<?xml version="1.0" encoding="UTF-8"?>
<!-- BBC Subtitle Schema V1.0
Last-edited: 2016-04-14 (to permit use of ebutts:linePadding)
Copyright BBC 2016
-->
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" targetNamespace="http://www.bbc.co.uk/ns/bbctt" xmlns:bbctt="http://www.bbc.co.uk/ns/bbctt" xmlns:ttm="http://www.w3.org/ns/ttml#metadata" xmlns:tt="http://www.w3.org/ns/ttml" xmlns:ebuttdt="urn:ebu:tt:datatypes"> <xs:import namespace="http://www.w3.org/XML/1998/namespace" schemaLocation="http://www.w3.org/2001/xml.xsd"/> <xs:import namespace="http://www.w3.org/ns/ttml#metadata" schemaLocation="ebu-tt-v1.0-lp-xml-schema/metadata.xsd"/> <xs:import namespace="urn:ebu:tt:datatypes" schemaLocation="ebu-tt-v1.0-lp-xml-schema/ebutt_datatypes.xsd"/> <xs:annotation> <xs:documentation>
The BBC metadata element additional document level metadata. </xs:documentation> </xs:annotation> <xs:element name="metadata"> <xs:complexType> <xs:sequence> <!-- Mandatory --> <xs:element ref="bbctt:schemaVersion"/> <xs:element ref="bbctt:timedTextType"/> <xs:element ref="bbctt:timecodeType"/> <!-- For programmes with ids --> <xs:element minOccurs="0" maxOccurs="1" ref="bbctt:programmeId"/> <!-- minOccurs=0 for live? --> <xs:element minOccurs="0" maxOccurs="unbounded" ref="bbctt:otherId"/> <!-- Live only --> <xs:element minOccurs="0" maxOccurs="unbounded" ref="bbctt:houseStyle"/> <!-- Live only - allow multiple services --> <xs:element minOccurs="0" maxOccurs="unbounded" ref="bbctt:recordedLiveService"/> <!-- Audio Description only --> <xs:element minOccurs="0" maxOccurs="1" ref="bbctt:OriginalADVoicer"/> <!-- Generic --> <xs:element minOccurs="0" maxOccurs="unbounded" ref="bbctt:div"/> </xs:sequence> </xs:complexType> </xs:element> <xs:element name="schemaVersion"> <xs:simpleType> <xs:restriction base="xs:token"> <xs:enumeration value="v1.0"/> </xs:restriction> </xs:simpleType> </xs:element> <xs:element name="timedTextType"> <xs:simpleType> <xs:restriction base="xs:NCName"> <xs:enumeration value="preRecorded"/> <xs:enumeration value="audioDescription"/> <xs:enumeration value="recordedLive"/> <xs:enumeration value="editedLive"/> </xs:restriction> </xs:simpleType> </xs:element> <xs:element name="timecodeType"> <xs:simpleType> <xs:restriction base="xs:NCName"> <xs:enumeration value="programme"/> <xs:enumeration value="timeOfDay"/> </xs:restriction> </xs:simpleType> </xs:element> <xs:element name="programmeId" type="xs:string"/> <xs:element name="otherId"> <xs:complexType mixed="true"> <xs:attribute name="type" use="required" type="xs:NCName"/> </xs:complexType> </xs:element> <xs:element name="OriginalADVoicer" type="xs:string"/> <xs:element name="houseStyle"> <xs:complexType mixed="true"> <xs:attribute name="owner" use="required" type="xs:NCName"/> </xs:complexType> </xs:element> <xs:element name="recordedLiveService"> <xs:complexType mixed="true"> <xs:attribute name="finish" use="required" type="xs:dateTime"/> <xs:attribute name="start" use="required" type="xs:dateTime"/> </xs:complexType> </xs:element> <xs:element name="div"> <xs:complexType > <xs:all> <!-- Include any that are applicable --> <xs:element minOccurs="0" maxOccurs="1" ref="bbctt:systemInfo"/> <xs:element minOccurs="0" maxOccurs="unbounded" ref="bbctt:chapter"/> <xs:element minOccurs="0" maxOccurs="unbounded" ref="bbctt:item"/> <xs:element minOccurs="0" maxOccurs="unbounded" ref="bbctt:event"/> </xs:all> <xs:attribute name="type" use="required" type="xs:NCName"/> </xs:complexType> </xs:element> <xs:element name="chapter"> <xs:complexType> <xs:sequence> <xs:element minOccurs="1" maxOccurs="unbounded" ref="bbctt:item"/> </xs:sequence> <xs:attribute ref="xml:id" use="required"/> </xs:complexType> </xs:element> <xs:element name="systemInfo" type="xs:string"/> <!-- String that describes the system that generated this part of this file --> <xs:element name="item"> <xs:complexType> <xs:sequence> <!-- Use identifiers to tie the item to other systems --> <xs:element minOccurs="0" maxOccurs="unbounded" ref="bbctt:itemId"/> <xs:element minOccurs="0" maxOccurs="1" ref="bbctt:title"/> <xs:element minOccurs="0" maxOccurs="1" ref="bbctt:associatedFile"/> <xs:element minOccurs="0" maxOccurs="unbounded" ref="bbctt:p"/> </xs:sequence> <xs:attribute name="begin" type="ebuttdt:timingType"/> <xs:attribute name="end" type="ebuttdt:timingType"/> <xs:attribute ref="xml:id" use="required"/> </xs:complexType> </xs:element> <xs:element name="title" type="xs:string"/> <xs:element name="p"> <xs:complexType mixed="true"> <xs:sequence> <xs:element minOccurs="0" maxOccurs="unbounded" ref="bbctt:span"/> </xs:sequence> <!-- values for ttm:role are all those in the TTML spec and others specified in the accompanying documentation --> <xs:attribute ref="ttm:role"/> <xs:attribute ref="ttm:agent"/> </xs:complexType> </xs:element> <xs:element name="span"> <xs:complexType mixed="true"> <xs:attribute ref="ttm:role"/> <xs:attribute ref="ttm:agent"/> </xs:complexType> </xs:element> <xs:element name="event"> <xs:complexType> <xs:attribute name="begin" use="required" type="ebuttdt:timingType"/> <xs:attribute name="end" type="ebuttdt:timingType"/> <!-- Mandatory for AD fades --> <xs:attribute name="endLevel" type="xs:integer"/> <!-- Mandatory for AD fades --> <xs:attribute name="id" type="xs:NCName"/> <xs:attribute name="pan" type="xs:integer"/> <!-- Mandatory for AD fades --> <xs:attribute name="type" type="xs:NCName"/> </xs:complexType> </xs:element> <xs:element name="itemId"> <xs:complexType mixed="true"> <xs:attribute name="type" use="required" type="xs:NCName"/> </xs:complexType> </xs:element> <xs:element name="associatedFile"> <xs:complexType mixed="true"> <xs:attribute name="type" use="required" type="xs:NCName"/> </xs:complexType> </xs:element>
</xs:schema>