【英文标准名称】:Informationtechnology-Codingofaudio-visualobjects-Part17:Streamingtextformat
【原文标准名称】:信息技术.音频-可视对象的编码.第17部分:文本流格式
【标准号】:ISO/IEC14496-17-2006
【标准状态】:现行
【国别】:国际
【发布日期】:2006-04
【实施或试行日期】:
【发布单位】:国际标准化组织(IX-ISO)
【起草单位】:ISO/IECJTC1/SC29
【标准类型】:()
【标准水平】:()
【中文主题词】:声信号;视听;视听资料;比特率;代码表示;编码(数据转换);配置;数据交换;数据格式;数据处理;定义;编码;文件结构;图形数据处理;图像处理;信息交换;信息技术;多媒体;音乐;语义学;尺寸;副题;句法;文本格式;题名
【英文主题词】:Acousticsignals;Audiovisual;Audiovisualmaterials;Bitrates;Codedrepresentation;Coding(dataconversion);Configuration;Dataexchange;Dataformats;Dataprocessing;Definition;Definitions;Encoding;Filestructure;Formats;Graphicdataprocessing;Imageprocessing;Informationinterchange;Informationtechnology;Multimedia;Music;Semantics;Subtitles;Syntax;Textformats;Titles
【摘要】:ThisInternationalStandardspecifiesthecodedrepresentationoftextualinformationfortimedpresentationonscreens.Thetextmaybestreamedinassociationwithvideoandaudio,inwhichcasethetextmayrepresentsubtitlese.g.withtranslationsoftheassociatedaudioinanotherlanguage,orasanaidtothehardofhearing;anotherexampleisthetextofasonginaKaraokeapplication.However,thetextmayalsobestreamedasastand-aloneapplicationwithoutanyassociatedvideoandaudio.Thestreamingtextformatisspecifiedinatransportagnosticmanner,soastoallowtransportoveralargevarietyoftransportmeans,whileprovidingareasonablelevelofrandomaccessanderrorrobustness.Thetextstreamsaredefinedasbytestreamsthatarecapableofcarryingtextaccessunitsofaspecifiedformat,optionallyinterleavedwithdataneededforthedecodingofthetextstream.Theformatoftextstreamsandtextaccessunitsisspecified,aswellassignalinganddecodingoftextstreams.
【中国标准分类号】:L81
【国际标准分类号】:35_040
【页数】:21P;A4
【正文语种】:英语