ISO/IEC 14496-5-2001 信息技术.音视对象编码.第5部分:参考软件
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【英文标准名称】:Informationtechnology-Codingofaudio-visualobjects-Part5:Referencesoftware
【原文标准名称】:信息技术.音视对象编码.第5部分:参考软件
【标准号】:ISO/IEC14496-5-2001
【标准状态】:现行
【国别】:国际
【发布日期】:2001-12-01
【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
【标准类型】:()
【标准水平】:()
【中文主题词】:参考;数据处理;参考材料;视频信号;编码(数据转换);图形处理;尺寸;音视;信息技术;计算机软件;图形数据处理;对象;编码;信息交换;多媒体;声信号;代码表示
【英文主题词】:Acousticsignals;Audiovisual;Codedrepresentation;Coding(dataconversion);Computersoftware;Dataprocessing;Encoding;Formats;Graphicdataprocessing;Imageprocessing;Informationinterchange;Informationtechnology;Multimedia;Object;Referencematerials;References;Videosignals
【摘要】:Referencesoftwareisnormativeinthesensethatanyconformingimplementationofthesoftware,takingthesameconformantbitstreams,usingthesameoutputfileformat,willoutputthesamefile.ComplyingISO/IEC14496implementationsarenotexpectedtofollowthealgorithmsortheprogrammingtechniquesusedbythereferencesoftware.Althoughthedecodingsoftwareisconsiderednormative,itcannotaddanythingtothetextualtechnicaldescriptionincludedinparts1,2,3and6ofISO/IEC14496.ThesoftwarecontainedinthispartofISO/IEC14496isdividedintothreecategories:a)Elementarystreamdecodingsoftwareiscataloguedinclauses3,4and5.Thissoftwareacceptselementarystreamsencodedaccordingtothenormativespecificationinparts1,2,3and6ofISO/IEC14496anddecodesthestreamsintothemediatypesassociatedwitheachelementarystream.Whilethissoftwareappearsinthenormativepartofthisspecification,attentionisdrawntothefactthattheimplementationtechniquesusedinthissoftwarearenotconsiderednormative–severaldifferentimplementationscouldproducethesameresult–butthesoftwareisconsiderednormativeinthatitcorrectlyimplementsthedecodingprocessesdescribedinparts1,2,3and6ofISO/IEC14496.b)ElementarystreamencodingsoftwareiscataloguedinAnnexA(informative).Thissoftwarecreateselementarystreamsfromassociatedmediatypes.Theencodersareprovidedasameanstoobtainelementarystreamswiththenormativesyntaxdescribedinparts1,2and3ofISO/IEC14496.Thetechniquesusedforencodingarenotspecifiedbythisspecification,andthequalityandcomplexityoftheseencodershasnotbeenoptimized.c)UtilitysoftwareiscataloguedinAnnexB(informative).Thissoftwarewasfoundusefulbythedevelopersofthestandard,butmaynotconformtothenormativespecificationsgiveninparts1,2,3and6ofISO/IEC14496.FilelocationsgiveninthispartofISO/IEC14496areexpressedrelativetoitslocationinthesourcetree.
【中国标准分类号】:L81
【国际标准分类号】:33_160_01;35_040;35_080
【页数】:12P.;A4
【正文语种】:英语
【原文标准名称】:信息技术.音视对象编码.第5部分:参考软件
【标准号】:ISO/IEC14496-5-2001
【标准状态】:现行
【国别】:国际
【发布日期】:2001-12-01
【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
【标准类型】:()
【标准水平】:()
【中文主题词】:参考;数据处理;参考材料;视频信号;编码(数据转换);图形处理;尺寸;音视;信息技术;计算机软件;图形数据处理;对象;编码;信息交换;多媒体;声信号;代码表示
【英文主题词】:Acousticsignals;Audiovisual;Codedrepresentation;Coding(dataconversion);Computersoftware;Dataprocessing;Encoding;Formats;Graphicdataprocessing;Imageprocessing;Informationinterchange;Informationtechnology;Multimedia;Object;Referencematerials;References;Videosignals
【摘要】:Referencesoftwareisnormativeinthesensethatanyconformingimplementationofthesoftware,takingthesameconformantbitstreams,usingthesameoutputfileformat,willoutputthesamefile.ComplyingISO/IEC14496implementationsarenotexpectedtofollowthealgorithmsortheprogrammingtechniquesusedbythereferencesoftware.Althoughthedecodingsoftwareisconsiderednormative,itcannotaddanythingtothetextualtechnicaldescriptionincludedinparts1,2,3and6ofISO/IEC14496.ThesoftwarecontainedinthispartofISO/IEC14496isdividedintothreecategories:a)Elementarystreamdecodingsoftwareiscataloguedinclauses3,4and5.Thissoftwareacceptselementarystreamsencodedaccordingtothenormativespecificationinparts1,2,3and6ofISO/IEC14496anddecodesthestreamsintothemediatypesassociatedwitheachelementarystream.Whilethissoftwareappearsinthenormativepartofthisspecification,attentionisdrawntothefactthattheimplementationtechniquesusedinthissoftwarearenotconsiderednormative–severaldifferentimplementationscouldproducethesameresult–butthesoftwareisconsiderednormativeinthatitcorrectlyimplementsthedecodingprocessesdescribedinparts1,2,3and6ofISO/IEC14496.b)ElementarystreamencodingsoftwareiscataloguedinAnnexA(informative).Thissoftwarecreateselementarystreamsfromassociatedmediatypes.Theencodersareprovidedasameanstoobtainelementarystreamswiththenormativesyntaxdescribedinparts1,2and3ofISO/IEC14496.Thetechniquesusedforencodingarenotspecifiedbythisspecification,andthequalityandcomplexityoftheseencodershasnotbeenoptimized.c)UtilitysoftwareiscataloguedinAnnexB(informative).Thissoftwarewasfoundusefulbythedevelopersofthestandard,butmaynotconformtothenormativespecificationsgiveninparts1,2,3and6ofISO/IEC14496.FilelocationsgiveninthispartofISO/IEC14496areexpressedrelativetoitslocationinthesourcetree.
【中国标准分类号】:L81
【国际标准分类号】:33_160_01;35_040;35_080
【页数】:12P.;A4
【正文语种】:英语
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