GB/T 20090.1-2012 English PDF
Basic dataStandard ID: GB/T 20090.1-2012 (GB/T20090.1-2012)Description (Translated English): Information technology -- Advanced coding of audio and video -- Part 1: System Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: L71 Classification of International Standard: 35.040 Word Count Estimation: 148,151 Quoted Standard: GB/T 4880.2-2000; GB/T 15273.1-1994; GB/T 17191.1-1997; GB/T 17191.2-1997; GB/T 17191.3-1997; GB/T 17975.1; GB/T 17975.2-2000; GB/T 17975.3-2002; GB/T 20090.2-2006; GB/T 20090.3; GB/T 20090.4; ISO/IEC 13522-1-1997; ISO/IEC 13818-6-1998; ITU-T RECOMMENDATI Regulation (derived from): National Standards Bulletin No. 41 of 2012 Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China Summary: This standard specifies the coding system layer, mainly for combined GB/T 2009. Definition video bit stream and an audio bit stream. System layer supports the following five basic functions: a) a plurality of compressed bit stream decoding synchronization GB/T 20090.1-2012: Information technology -- Advanced coding of audio and video -- Part 1: System---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order... Information technology Advanced coding of audio and video Part 1. System ICS 35.040 L71 National Standards of People's Republic of China They advanced audio and video coding Part 1. System Part 1. System Issued on. 2012-12-31 2013-06-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released Table of ContentsIntroduction Ⅲ Introduction Ⅳ 1 Scope 1 2 Normative references 1 3 Terms and definitions 2 4 Symbols and Abbreviations 7 5 stream syntax description of the way 9 6 Transport Stream bitstream requirements 10 7 Program Stream bitstream requirements 56 8 program and program element descriptors 70 9 pairs multiplexed stream semantics constraint 85 10 and GB/T 17975 88 compatibility Appendix A (informative) System Time Clock Recovery Information Model and Application Guide 89 Annex B (informative) System Compliance 98 Annex C (informative) introducing jitter network interface with AVS decoder 99 Annex D (informative) Graphical representation of grammar 102 Annex E (informative) General information 106 Annex F (informative) spliced \u200b\u200btransport stream 107 Annex G (informative) data transmission applications 110 Appendix H (informative) Digital Storage Media Command and Control (DSM-CC) 111 Annex I (normative appendix) CRC decoder model 121 Appendix J (informative) system demultiplexing process 122 Annex K (informative) system multiplexing process 125 Annex L (informative) program specific information 129 Annex M (informative) private data 138ForewordGB/T 20090 "Information technology advanced audio and video coding" is divided into nine sections. --- Part 1. System; --- Part 2. Video; --- Part 3. Audio; --- Part 4. Conformance testing; --- Part 5. Reference software; --- Part 6. Digital Rights Management; --- Part 7. Mobile Video; --- Part 8. transmission AVS on the IP network; Part --- Article 9. AVS file format. This section GB/T Part of 120,090. This section drafted in accordance with GB/T 1.1-2009 given rules. This part is proposed by the Ministry of Industry and Information Technology of the People's Republic of China. This part of the National Information Technology Standardization Technical Committee (SAC/TC28) centralized. This section drafted by. Institute of Computing Technology, Tsinghua University, Beijing Science and Technology Development Co., Ltd. Compunicate, China Electronics Technology Institute of Standardization surgery, Peking University, Huazhong University of Science and Technology, Beijing University of Posts and Telecommunications, joint source digital audio and video technology (Beijing) Co., Ltd., Spreadtrum Communications (Shanghai) Co., Ltd. The main drafters of this section. Chenxi Lin, Yang Shiqiang, high Pengfei, Huo Long community, high-Lin Peng, Ding Yaqiang, AMMINISTRATION Lin Fuhui, Mu Tian Lun, Xiao Wang, Zhu Guangxi, Lin Yongbing, He Yuwen, Li Yu, Wang Lei, Bo Feng, Zhang Rui Zhen, Yang Zhaohui, Yang Jie, Wang Hengjing, Gao Wen, Huang Tiejun, Lu Hanqing.IntroductionThe scope of the rules of grammar and semantic rules described in this section are different. syntax rules for system layer coding only, does not extend to GB/T 20090.2 and GB/T 20090.3 described in the compression layer coding, and semantic rules apply to the multiplexed stream. This section does not specify the architecture or implementation of encoders or decoders, nor on the multiplexer or demultiplexer accordingly Regulation set. However, the nature of the encoded bit stream, decoders, multiplexers and demultiplexers forth requirements for functionality and performance, such as encoders Should meet minimum clock tolerance requirements, these requirements do not interfere with encoders, decoders, multiplexers and demultiplexers of design and implementation Now flexibility. 0.2 Transport Stream Transport stream is directed to carry out programs that might appear significant errors (often expressed as bit errors or packet loss) environments biography A fluid storage and delivery defined. The program contains coded in accordance with section defines the GB/T 20090.2 and GB/T 20090.3, etc. Data, and other data. Rate of the transport stream may be constant or variable. In any case, the basic flow rate may be included in a variable or constant of. In each case, the syntax or semantics of the limiting flow is the same, the value of the flow rate of the transmission rate transmission rate (transport_rate) field By definition, these transmission rate field embedded in each stream. Comprising a plurality of independent time base program transport stream will cause the overall bit rate is variable, which will construct and transmit such Bitstream bring some difficulties, see 6.2.2. Just can generate a valid stream, containing one or more programs from the transport stream can be substantially encoded data stream, program stream or other It may contain one or more programs configured to generate transport streams. Transport stream in accordance with minimal overhead transmission stream can perform certain principles of operation and design. These operations include. a) obtained from one program transport stream encoding data decoding and display, shown in Figure 2; b) extracting packet transport stream packets from one program transport stream and generate a new transport stream containing only the program as an output, As shown in Figure 3; c) extracting one or more programs from one or more transport stream packet transport stream packets and generate a new transport stream; d) to extract the contents of a program from the transport stream and a program stream is generated that contains the program, shown in Figure 4; e) the program stream into a transport stream and lossy transmission environment. Then rebuild an effective, complete and in some cases Identical program streams. Figures 2 and 3 is described as an input to a transport stream demultiplexing and decoding system prototype. Figure 2 illustrates the first case, namely A transport stream is de-multiplexed and decoded directly. Transport stream structure is divided into two layers. the system layer and a compression layer. Transport stream decoder input stream system layer compression layer consisting of a composition. The audio decoder and video decoder input stream only package Containing compressed layer. Decoder prototypes receiving a transport stream operations both for the entire transport stream (multiplexed stream operations), also applies to a single elementary stream (stream-specific a) demultiplexing; b) a plurality of elementary streams synchronized playback. 0.9.1 demultiplexing When encoding, the program flow from the elementary streams multiplexed together, while the transport stream by the elementary stream, stream or other content program transport streams multiplexed together. In addition to audio and video elementary stream bit stream, but also including private, reserved and supplementary bit stream. The basic flow is temporarily divided into PES packets Package, packet packets are serialized. PES packet contains a packet from only one elementary stream encoded bytes. Program stream packet packet length may be fixed or variable, but the packet packet length should comply with the provisions of 8.1 and 8.2. transmission Stream packet packet length is 188 bytes, the length of the PES packet packet may be fixed or variable, relatively long in most applications. The need for multiplexed program stream or transport stream decoding multiplex solutions to rebuild the elementary stream. This can make use of the program stream packet header stream_id and the transport stream packet header PEID to complete. 0.9.2 plurality of elementary streams of simultaneous playback Synchronization is accomplished by a plurality of program stream or transport stream relative display time (relative_display_time) elementary streams. Timestamps typically 90kHz clock cycles. A plurality of elementary stream decoder is synchronized by adjusting the decoding for each stream to a public Master clock reference, rather than by adjusting the decoding of one stream to another stream in line decoding. Master clock reference may be a plurality of decoded A clock, the clock may be a data source or an external clock. A transport stream may contain multiple programs, each of which can have its own program clock reference. A different program transport stream Clock reference may be different. relative_display_time for a single elementary stream decoder, which exists in the transport stream packets corresponding TS packet. Encoder capture Timestamps eligible when the time stamp minus the current system time to obtain relative display time, and together with encoded data to decode Device. Decoder through their scheduled programs to show, in order to achieve end to end synchronization. A channel decoding system synchronization by using the transmission stream transport_rate to achieve. transport_rate is compiled The code bit stream sampled values \u200b\u200bself-transmission rate. They come from the same time base, the time reference in the same program is also used as the audio and Sample video relative_display_time values. Because each program may have its own time base, it contains a plurality of programs Transport streams each program can have separate transport_rate field. In some cases, programs share transport_rate field Also possible. Determining a program with which transport_rate methods can be found associated with fields 6.5 Program Specific Information (PSI). There is a program and a related transport_rate reference only. In the error-prone environment, in order to remain in the packet loss Correctly recovered clock, the transport stream packet packet can contain packet count value packet_count. 0.9.3 Relationship with the compression layer In some cases, PES packet cladding layer is independent of the compression. Taking into account the PES packet payload package without image GB/T 20090.2, GB/T 20090.3 specified as to compress the layers starting at the beginning of the code, PES packet cladding is independent. Example. video start codes may appear anywhere in the PES packet payload of the packet, and packet PES packet header can be separated. However, in the PES packet header packet encoded timestamp is used to determine the display time compression layer structure (ie, the display unit). In addition, When the elementary stream data conforms to GB/T 20090.2, GB/T 20090.3 time, PES_packet_data_bytes this section shall comply with the number of bytes Byte alignment. 0.10 System reference decoder This section uses the system target decoder (STD) to provide a buffer between the timing and formal representations. Called mass transport stream Transport stream system target decoder (T-STD), see 6.2; the program stream, known as the Program Stream system target decoder (P-STD), see 7.2. because STD is based on GB/T 20090 in the field (such as buffer size) parameterized constructor, so each has its own STD elementary stream parameter. Bit stream produced by the encoder shall comply with the appropriate STD's constraints. Physical AVS decoder can assume a bit stream can, in its STD The correct play. Physical decoder also needs to be compensated with the difference between the STD in the design. They advanced audio and video coding Part 1. System1 ScopeThis section GB/T 20090 specifies the coding system layer, mainly used in combination GB/T 20090 definition video bit stream and audio bit flow. System layer supports the following five basic functions. a) a plurality of synchronous decoding the compressed bit stream; b) a plurality of compressed bit stream interleaved into a single bit stream; c) for the start of the decoding buffer is initialized; d) continuous buffer management; e) time stamp. This section applies to digital television broadcasting, laser digital storage media, Internet broadband streaming media and multimedia communication applications. A multiplexed bit stream may be a transport stream or program stream. Both streams are PES packet or packets containing other necessary information packet constitute. Both streams types support multiplexing from having a common time base program video and audio compression bit stream. Transport Stream also supports Multiplexing from multiple programs with independent time base compressed video and audio bit stream. Program Stream is generally more suitable for almost error does not occur Environment and support software program information processing. Transport Stream is more suitable for the environment can go wrong. Whether it is a transport stream or program stream structure a multiplexed bit stream is divided into two layers. the outermost layer is the system layer, the innermost layer is compressed. System layer provides the use of the system in one or more compressed data streams desired function. GB/T 20090 Part 2 and Part 3 set Compression coding layer defines the audio and video data. Other types of data encoding definition not included in this section, but if they comply with this The definitions section in Chapter 9, the system also supports layers such data encoding.2 Normative referencesThe following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein Member. For undated references, the latest edition (including any amendments) applies to this document. GB/T 4880.2-2000 Language Name Code Part 2. 3 letter code (eqv ISO 639-2.1998) GB/T 15273.1-1994 Information processing bit single-byte coded graphic character sets - Part 1. Latin alphabet a (idt ISO 8859-1. 1987) Digital storage media moving image GB/T 17191.1-1997 Information technology 1.5Mbit/s data transfer rate and with Coding of audio - Part 1. System (idt ISO /IEC 11172-1.1993) Digital storage media moving image GB/T 17191.2-1997 Information technology 1.5Mbit/s data transfer rate and with Coding of audio - Part 2. Video (idt ISO /IEC 11172-2.1993) Digital storage media moving image GB/T 17191.3-1997 Information technology 1.5Mbit/s data transfer rate and with Coding of audio - Part 3. Audio (idt ISO /IEC 11172-3.1993) GB/T 17975.1 Information technology of moving pictures and associated audio information - Generic coding - Part 1. System (GB/T 17975.1- 2010, ISO /IEC 13818-1.2007, MOD) GB/T 17975.2-2000 Information technology - Generic coding of moving pictures and associated audio information - Part 2. Video (idtITU- TH.262.1995) GB/T 17975.3-2002 Information technology - Generic coding of moving pictures and associated audio information - Part 3. Audio (idt ISO / ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 20090.1-2012_English be delivered?Answer: Upon your order, we will start to translate GB/T 20090.1-2012_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. 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