BS EN 62261-2-2006 电视元数据.第2部分:使用密匙长度值的数据编码协议
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【英文标准名称】:TelevisionMETADATA-Part2:Dataencodingprotocolusingkey-length-value
【原文标准名称】:电视元数据.第2部分:使用密匙长度值的数据编码协议
【标准号】:BSEN62261-2-2006
【标准状态】:现行
【国别】:英国
【发布日期】:2007-05-31
【实施或试行日期】:2007-05-31
【发布单位】:英国标准学会(BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:音频的;编码;数据;数据目录;数据代码;数据元;数据编码;数据交换;数据结构;数据传送;定义;名称与符号;文献工作;娱乐电子学;元数据;协议;电视;传输协议;视频;8位代码字符集
【英文主题词】:
【摘要】:ThispartofIEC62261definesanoctet-leveldataencodingprotocolforrepresentingdataitemsanddatagroups.Thisprotocoldefinesadatastructurewhichisindependentoftheapplicationortransportationmethodused.Thestandarddefinesakey-length-value(KLV)tripletasadatainterchangeprotocolfordataitemswherethekeyidentifiesthedata,thelengthspecifiesthelengthofthedata,andthevalueisthedataitself.TheKLVprotocolprovidesacommoninterchangeforallcompliantapplicationsirrespectiveofthemethodofimplementationortransport.ThestandardalsoprovidesmethodsforcombiningassociatedKLVtripletsindatasetswherethesetofKLVtripletsisitselfcodedwithKLVdatacodingprotocol.Suchsetscanbecodedineitherfullform(universalsets)orinoneoffourincreasinglybit-efficientforms(globalsets,localsets,variable-lengthpacks,andfixed-lengthpacks).Thestandardprovidesadefinitionofeachofthesedataconstructs.Theencodingoctetrange(lengthofthepayload)specifiedinthisstandardmaygenerateunusuallylargevolumesofdata.Consequently,aspecificapplicationofKLVencodingiscapableofonlyalimitedoperatingdatarangeandthosedetailsshallbedefinedinarelevantapplicationdocument.Ofnecessity,keysandotherreferencedatahavetobegloballyuniqueifclashesaretobeavoided.TheIECwilltherefore,fromtimetotime,designateotherbodiestoactasitsregistrationauthorityandagentinthisrespect;itisimportanttonotethat,asaresultofthis,registrationswillalwayscontainthedesignatoroftheregistrationauthorityactingatthetimeofregistrationandnotthatoftheIEC(unlesstheIECwasactingdirectlyasitsownregistrationauthority).Amixtureofregistrationauthoritydesignatorsisthereforetobeexpected.
【中国标准分类号】:M60
【国际标准分类号】:01_040_33;01_040_35;33_160_01;35_240_99
【页数】:38P.;A4
【正文语种】:英语
【原文标准名称】:电视元数据.第2部分:使用密匙长度值的数据编码协议
【标准号】:BSEN62261-2-2006
【标准状态】:现行
【国别】:英国
【发布日期】:2007-05-31
【实施或试行日期】:2007-05-31
【发布单位】:英国标准学会(BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:音频的;编码;数据;数据目录;数据代码;数据元;数据编码;数据交换;数据结构;数据传送;定义;名称与符号;文献工作;娱乐电子学;元数据;协议;电视;传输协议;视频;8位代码字符集
【英文主题词】:
【摘要】:ThispartofIEC62261definesanoctet-leveldataencodingprotocolforrepresentingdataitemsanddatagroups.Thisprotocoldefinesadatastructurewhichisindependentoftheapplicationortransportationmethodused.Thestandarddefinesakey-length-value(KLV)tripletasadatainterchangeprotocolfordataitemswherethekeyidentifiesthedata,thelengthspecifiesthelengthofthedata,andthevalueisthedataitself.TheKLVprotocolprovidesacommoninterchangeforallcompliantapplicationsirrespectiveofthemethodofimplementationortransport.ThestandardalsoprovidesmethodsforcombiningassociatedKLVtripletsindatasetswherethesetofKLVtripletsisitselfcodedwithKLVdatacodingprotocol.Suchsetscanbecodedineitherfullform(universalsets)orinoneoffourincreasinglybit-efficientforms(globalsets,localsets,variable-lengthpacks,andfixed-lengthpacks).Thestandardprovidesadefinitionofeachofthesedataconstructs.Theencodingoctetrange(lengthofthepayload)specifiedinthisstandardmaygenerateunusuallylargevolumesofdata.Consequently,aspecificapplicationofKLVencodingiscapableofonlyalimitedoperatingdatarangeandthosedetailsshallbedefinedinarelevantapplicationdocument.Ofnecessity,keysandotherreferencedatahavetobegloballyuniqueifclashesaretobeavoided.TheIECwilltherefore,fromtimetotime,designateotherbodiestoactasitsregistrationauthorityandagentinthisrespect;itisimportanttonotethat,asaresultofthis,registrationswillalwayscontainthedesignatoroftheregistrationauthorityactingatthetimeofregistrationandnotthatoftheIEC(unlesstheIECwasactingdirectlyasitsownregistrationauthority).Amixtureofregistrationauthoritydesignatorsisthereforetobeexpected.
【中国标准分类号】:M60
【国际标准分类号】:01_040_33;01_040_35;33_160_01;35_240_99
【页数】:38P.;A4
【正文语种】:英语
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