1、 549972012 DRM. DAB (EPG) 27 2002 . 184- , 1.02004 . 1 - , - - ( -)2 3 19 2012 . 361-4 (ETSI) ; . (EPG) (ETSI TS 102 371 V1.2.1 (2006-02) Technical Specification. Digital AudioBroadcasting (DAB); Digital Radio Mondiale (DRM); Transportation and Binary Encoding Specification forElectronic Programme G
2、uide (EPG)5 , - . () . - , , 2013 , - - II 5499720121 .12 13 , 14 34.1 34.2 .34.3 .34.4 .34.5 .54.6 CDATA .54.7 64.8 .64.9 .104.10 114.11 contentID .115 125.1 .125.2 .125.3 135.4 , 136 EPG 146.1 .146.2 146.3 146.4 146.5 .167 167.1DAB167.2DRM17 () .18 (): .20 (): .22 (): .24 (): 2527III 549972012 DRM
3、. DAB (EPG)Digital radio mondiale (DRM). Digital audio broadcasting (DAB).Transportation and binary encoding specification for electronic programme guide (EPG) 201304011 , , (Electronic Programme Guide;EPG) (Digital Audio Broadcasting; DAB) - (Digital Radio Mondiale; DRM). , - DAB DRM.2 : 544622011
4、DRM. .- (ITU-R Radio Regulations) - - , 1 , , . (), - () . , , , , .3 , 3.1 54462, :3.1.1 (ensemble): , - ; .3.1.2 , (Programme Associated Data; PAD): , - . PAD - DAB.3.1.3 MOT (MOT header): MOT , - MOT.3.1.4 (Ensemble Identifier; EId): 16- , - .1 549972012 3.1.5 (Service Description Channel; SDC):
5、, , , .3.1.6 MOT (MOT entity): MOT MOT MOT.3.1.7 (User application): , DAB.3.1.8 PAD (eXtended Programme Associated Data; X-PAD): , , DAB CRC, .3.1.9 , , (service): ().3.1.10 (MOT body): MOT . - MOT MOT.3.2 :CA (Conditional Access) ;CDATA (string data) ;CRC (Cyclic Redundancy Check) ;CRID (Content R
6、eference ID) cc ;CS (classification scheme) ;DAB (Digital Audio Broadcasting) ;Deflate , LZ77 ;DRM (Digital Radio Mondiale) ;ECC (Extended Country Code) ;EId (Ensemble Identifier) ;EPG (Electronic Programme Guide) ;FIG (Fast Information Group) ;GI (Group Information) ;GZIP (GNU Zip) () , DEFLATE;ISO
7、 (International Organization for Standardization) -;LTO (Local Time Offset) ;MIME (Multipurpose Internet Mail Extensions) ;MJD (Modified Julian Date) ;MOT (Multimedia Object Transfer) ;Mux (multiplex) ;N/A (not available) ;PAD (Programme Associated Data) , ;PI (Programme Information) ;PNum (Programm
8、e Number) ;Rfa (Reserved for future addition) ;Rfu (Reserved for future use) ;SCIdS (Service Component Identifier within the Service) ( );SDC (Service Description Channel) ;SI Service Information ;SId (Service Identifier) ;UA (User application) ;URL (Uniform Resource Location) ( );UTC (Co-ordinated
9、Universal Time) ;XML (eXtensible Markup Language) ;X-PAD (eXtended Programme Associated Data) PAD.2 5499720124 4.1 tag-length-value. , ( ) . -. 1 tag-length-value.tag length value tag length 1 tag-length-value XML 4.3 -. 4.5 . XMLEPG.- 4.8 . - XML .4.2 , , - , C. , 1. 1 uimsbf , 4.3 , , 2. - . 2 bin
10、ary_object() top_level_element()top_level_element() , 4.4.2 .4.4 4.4.1 3.3 549972012 3 . element() element_tag 8 uimsbfelement_length 8 uimsbfif (element length = 0xFE) extended_element_length 16 uimsbfif (element_length = 0xFF) extended_element_length 24 uimsbffor (i=0; i , 16- .10 5499720124.9.3 v
11、ersion, , , , , , and , 16- .4.9.4 (bitrate), ,16- , 0,1 , /.4.9.5 , , 24- , .4.9.6 numOfItems . 16- .4.9.7 (width and height) . 16- .4.10 4.10.1 XML. EPG () . 16 . ( ) . , . , (epg serviceInformation), . - (. . epg serviceInformation) . , 4.4 , :- element_tag: 0x04;- element_data_byte: ( 4.10.2 ).4
12、.10.2 . . 7. 7 token() token_tag 8 uimsbftoken_length 8 uimsbffor (i=0; iPM .1 . .1 023F213D2416800433 BF C4 40810433 BF C4 802508800640 E1 CE 15 C2 241C238103FA E4 511104010250 4D19162C0A800433 BF C4 4081 = 63 = 61 = 22 = 4 2003-12-18T17:00:00 ( ) = 4 2003-12-18T18:00:00 ( ) = 8 ID = 6 E1.ce15.c224.0 = 35 Shortid = 3 16442449 = 4 CDATA = 2 PM = 22 = 10 = 4 2003-12-18T17:00:00 ( ) 18 549972012 .1 020E 102D08800640 E1 CE 15 C2 24 = 2 3600 = 8 ID = 6 E1.ce15.c224.019 549972012 () , , - 0x10 0x7E.
