1、 55803 2013 DVB 2014 558032013 II 1 - - ( ). 2 3 22 2013 . 1625- 4 ISO/IEC 13818-9 Information technology Generic coding of moving pictures and associated audio infor-mation Part 9: Extension for real time interface for systems decoders 5 1.02012 ( 8). ( 1 ) , -. () - . , (gost.ru) , 2014 , - 55803
2、2013 1 . DVB Digital Video Broadcasting (DVB); extension for real time interface for system decoders of DVB transport stream services. Basic parameters 2014 09 01 1 ( ), - MPEG-2 ISO/IEC 1, (System Clock Reference; SCR), (Program Clock Reference; PCR), - (Decoding Time Stamp; DTS) (Presentation Time
3、 Stamp; PTS). PCR , - 27 . (Decoding Time Stamp; DTS) (Presentation Time Stamp; PTS) - - - . MPEG-2, , -, . - PCR . - : - , - , , , - , , , - ; - , () PCR . , ISO/IEC 1, (Transport Stream System Target Decoder; T-STD) - . , -, T-STD . , T-STD, , - . - 27 - . - , - . - . MPEG - , - , , 558032013 2 -
4、 . - MPEG - , PCR - (System Clock Reference; SCR), . 2 : 522102004 . 525912006 -. 53528-2009 . DSM-CC. , 1 , , , . , , (). , , , , , . , , , , . 3 , , 3.1 52210, 52591, 53528, : 3.1.1 FIFO (First -In, First- out; FIFO): , - . 3.1.2 (Presentation Time Stamp, PTS): , - , . 3.1.3 (Decoding Time Stamp;
5、 DTS): , , . 3.1.4 : , - , . -: - , , ; - , , , . 3.1.5 (Elementary Stream Clock Reference; ESCR): , PES . 3.1.6 (Presentation Time Stamp; PTS: -, , . 3.1.7 ; (Packetized Elementary Stream; PES): - , . 3.1.8 (application): 1 , - , . 2 - , - . 3.1.9 (Program Stream; PS): , - 558032013 3 , - . 3.1.10
6、profile): 1 , - , ( - ), , - . 2 () (), - . 3.1.11 , (service): 1 , - . 2 - , -, . 3.1.12 (Program Clock Reference; PCR): , (ISO/IEC 1 (2.1.42); PCR 33- , 90 , . 3.1.13 ( ) (System Clock Reference; SCR): 33- , 90 . 3.1.14 ; (transport stream; TS): , . ISO/IEC 1 (2.4). 3.2 : (International Electrote
7、chnical Commission / Committee, IEC) - ; (International Telecommunications Union, ITU) ; (Packetized Elementary Stream, PES) ; (transport stream, TS) ( ); DTS (Decoding Time Stamp) (); DVB (Digital Video Broadcasting) ; ES (Elementary Stream) (); ESCR (Elementary Stream Clock Reference) ES; FIFO (Fi
8、rst -In, First- out) : ; ISO (International Standards Organizations) ; ITU-T (International Telecommunications Union Telecommunication Standardization Sector) - ; MPEG (Motion Pictures Expert Group) - ; MPEG-2 - ; NDP (Network Data Packet) ; PCR (Program Clock Reference) ; PES (Packetized Elementary
9、 Stream) ; ; PID (Packet Identifier) ; PSI (Program Specific Information) - ; RTI (Real Time Interface) ; RTI-LJ (Real-Time Interface for Low Jitter Applications) RTI ; PTS (Presentation Time Stamp) ; RTD (Real-Time Interface Decoder) (ISO/IEC 2); SBn (smoothing buffer) ; SCR (System Clock Reference
10、) ( ); SDT (Service Description Table) ; SI (Service Information) ; STC (System Time Clock) ; STCd (delayed STC) STC; STD (System Target Decoder) ; 558032013 4 TBn n T-STD; TB_rn n RTD; TBsys ( T-STD); TBSsys TBsys ( T-STD); TBSn TBn ( T-STD); TDT (Time and Date Table) ; TOT (Time Offset Table) ; TPS (Transmission arameter signalling) ; TS (Transport Stream) ( ); ; T-STD (Transport Stream System Target Decoder) ; UP (User Packet) . 3.3 : DIV (Integer division with truncation of the result towards ) - ; % Modulus operator (Defined only for positive numbers) -
