MPEG2系统视频和音频在有线和地面广播应用中的实现指南

ETSIETR154TECHNICALSeptember1997REPORTThirdEditionSource:EBU/CENELEC/ETSIJTCReference:RTR/JTC-00DVB-38ICS:33.020Keywords:DVB,broadcasting,digital,video,MPEG,TVEuropeanBroadcastingUnionUnionEuropéennedeRadio-TélévisionDigitalVideoBroadcasting(DVB);ImplementationguidelinesfortheuseofMPEG-2Systems,VideoandAudioinsatellite,cableandterrestrialbroadcastingapplicationsETSIEuropeanTelecommunicationsStandardsInstituteETSISecretariatPostaladdress:F-06921SophiaAntipolisCEDEX-FRANCEOfficeaddress:650RoutedesLucioles-SophiaAntipolis-Valbonne-FRANCEX.400:c=fr,a=atlas,p=etsi,s=secretariat-Internet:[e-mail].:[phone]-Fax:[phone]CopyrightNotification:Nopartmaybereproducedexceptasauthorizedbywrittenpermission.Thecopyrightandtheforegoingrestrictionextendtoreproductioninallmedia.©EuropeanTelecommunicationsStandardsInstitute1997.©EuropeanBroadcastingUnion1997.Allrightsreserved.Page2ETR154:September1997Whilsteverycarehasbeentakeninthepreparationandpublicationofthisdocument,errorsincontent,typographicalorotherwise,mayoccur.Ifyouhavecommentsconcerningitsaccuracy,pleasewritetoETSIEditingandCommitteeSupportDept.attheaddressshownonthetitlepage.Page3ETR154:September1997ContentsForeword.......................................................................................................................................................5Introduction....................................................................................................................................................61Scope..................................................................................................................................................82References..........................................................................................................................................83Definitionsandabbreviations..............................................................................................................93.1Definitions............................................................................................................................93.2Abbreviations.......................................................................................................................94Systemslayer....................................................................................................................................104.1BroadcastbitstreamsandBaselineIRDs..........................................................................104.1.1Introduction(ISO/IEC13818-1,section0)....................................................104.1.2PacketizedElementaryStream(PES)(ISO/IEC13818-1,section0.4)........104.1.3TSsystemtargetdecoder(ISO/IEC13818-1,section2.4.2)........................114.1.4Transportpacketlayer(ISO/IEC13818-1,section2.4.3.2)..........................114.1.4.1Nullpackets.........................................................................114.1.4.2Transportpacketheader.....................................................114.1.4.2.1transport_error_indicator......................114.1.4.2.2transport_priority...................................114.1.4.2.3transport_scrambling_control...............114.1.4.2.4PacketIDentifier(PID)valuesforServiceInformation(SI)Tables............114.1.5Adaptationfield(ISO/IEC13818-1,section2.4.3.4).....................................114.1.5.1Random_access_indicator..................................................114.1.5.2elementary_stream_priority_indicator..................................114.1.5.3ProgramClockReference(PCR)........................................124.1.5.4Otherfields..........................................................................124.1.6PacketizedElementaryStream(PES)Packet(ISO/IEC13818-1,section2.4.3.6)..........................................................................................................124.1.6.1stream_id.............................................................................124.1.6.2PES_scrambling_control.....................................................124.1.6.3PES_priority.........................................................................124.1.6.4copyrightandoriginal_or_copy............................................124.1.6.5Trickmodefields.................................................................134.1.6.6additional_copy_info............................................................134.1.6.7Optionalfields......................................................................134.1.6.8PES_extension_field............................................................134.1.7ProgramSpecificInformation(PSI)(ISO/IEC13818-1,section2.4.4).........134.1.8Programandelementarystreamdescriptors(ISO/IEC13818-1,section2.6)................................................................................................................144.1.8.1video_stream_descriptorandaudio_stream_descriptor.....144.1.8.2hierarchy_descriptor............................................................144.1.8.3registration_