GB/T 20090.2: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 20090.2-2013 | English | RFQ |
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3 days [Need to translate]
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Information technology -- Advanced coding of audio and video -- Part 2: Video
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GB/T 20090.2-2013
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| GB/T 20090.2-2006 | English | RFQ |
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14 days [Need to translate]
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Part 2 of the IT advanced audio and video coding: video
| Obsolete |
GB/T 20090.2-2006
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PDF similar to GB/T 20090.2-2013
Basic data | Standard ID | GB/T 20090.2-2013 (GB/T20090.2-2013) | | Description (Translated English) | Information technology -- Advanced coding of audio and video -- Part 2: Video | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | L71 | | Classification of International Standard | 35.040 | | Word Count Estimation | 175,122 | | Older Standard (superseded by this standard) | GB/T 20090.2-2006 | | Regulation (derived from) | National Standards Bulletin 2013 No. 27 | | Issuing agency(ies) | General Administration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 provides a variety of bit rate, resolution and quality of video compression methods and decoding process. This standard applies to the high-resolution and standard-resolution digital television broadcasting, laser digital storage media, Inte | GB/T 20090.2-2013: Information technology -- Advanced coding of audio and video -- Part 2: Video---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 2. Video
ICS 35.040
L71
National Standards of People's Republic of China
Replacing GB/T 20090.2-2006
They advanced audio and video coding
Part 2. Video
Issued on. 2013-12-31
2014-07-15 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Table of Contents
Preface Ⅰ
Introduction Ⅲ
1 Scope 1
2 Terms and definitions 1
3 Abbreviations 8
4 Operators and mathematical functions 8
Description 5 stream syntax, parsing and decoding process 11
Structure 6 coded bit stream 15
The syntax and semantics of the seven streams 22
8 65 resolution process
9 decoding process 87
Appendix A (normative) pseudo-start code 140
Appendix B (normative) and grade level 141
Annex C (normative) bit stream virtual reference decoder 148
Annex D (normative) Basic code entropy coding table 153
Foreword
GB/T 20090 "Information technology advanced audio and video coding" is divided into 13 sections.
--- Part 1. System;
--- Part 2. Video;
--- Part 3. Audio;
--- Part 4. Conformance testing;
--- Part 5. Reference software;
--- Part 6. Digital Rights Management for trusted decoder and access protocols;
--- Part 7. Application for interactive video codec;
--- Part 8. transmission AVS on the IP network;
Part --- Article 9. AVS file format;
--- Part 10. mobile voice and audio;
--- Part 11. Synchronized Text;
--- Part 12. Integrated scene;
--- Part 13. reconfigurable video encoding tools.
This is Part 2 GB/T 20090 of.
This section drafted in accordance with GB/T 1.1-2009 given rules.
This Part replaces GB/T 20090.2-2006 "IT advanced audio and video coding - Part 2. Video."
This section compared with the GB/T 20090.2-2006, in addition to editorial changes outside the main technical changes are as follows.
--- Terms and definitions added before the reference to the inter-frame decoded image background binary notation binary symbol string, core image, and stripe set
Define terms such intra decoded background image, deleting the term non-reference picture, and in order to unify the standard terminology, the "ratio
Special "unified" position ", so this part of the terms and definitions of the stuffing bits of GB/T 20090.2-2006 the stuffing bits, bits
String of GB/T 20090.2-2006 bit string in the bit stream of GB/T 20090.2-2006 bit stream, the bit stream buffer
District of GB/T 20090.2-2006 bit stream buffer, the bit stream order GB/T 20090.2-2006 bit stream
Order (see Chapter 2);
--- Increased intra decoded background image (G frame), refer to the background before inter decoded image (S frame) is defined (see 6.2.3);
--- Increasing the stripe set is defined (see 6.3);
--- Increasing the definition of 4 × 4 blocks (see 6.6);
--- Syntax and semantics of the video sequence has been modified (see 7.1 and 7.2);
--- Resolution process increases the ce4 (v) and ae (v) of the resolution process (see 8.3.2 and 8.4, respectively);
--- Picture header decoding process increases the step of determining the weighted quantization matrix (see 9.2);
--- Increased macro-block type G frame, define S frame macroblock type (see 9.4.2);
--- Macroblock decoding process increases the decoding process 4 × 4 intra-prediction mode (see 9.4.4.3);
--- Macroblock decoding process increases the weighting of the quantization matrix decoding process (see 9.4.9);
--- Decoding entropy encoding process substantially increases the 4 × 4 block decoding process (see 9.5.1.3);
--- Adds advanced entropy coding decoding process (see 9.5.2);
--- Inverse scan increased 4 × 4 block inverse scanning process (see 9.5.3);
--- Increasing the definition of quantized coefficients of the prediction process (see 9.6);
--- Increasing the process of 4 × 4 inverse transform blocks (see 9.8.3);
--- Increased by 4 × 4 block reference samples obtained (see 9.9.5) and 4 × 4 luma block intra prediction process (see 9.9.6);
--- Increasing the brightness of 1/8 sample interpolation process (see 9.10.2.2);
--- Increased for 4 × 4 blocks basic entropy coding code table (see Appendix D);
--- Increasing the profile and level definitions (see Appendix B).
This part of the National Information Technology Standardization Technical Committee (SAC/TC28) and focal points.
This section drafted by. Institute of Computing Technology, Tsinghua University, Zhejiang University, Huazhong University of Science and Technology, Beijing University of Technology,
Sun Yat-sen, Huawei Technologies Co., Ltd., Shanghai SVA (Group) Co., Ltd., Academia Sinica, Beijing long letter Ka Information Technology Co., Ltd., Wu
Han University, Beijing University, Hong Kong University of Science and Technology, Beijing Representative Office France Telecom, ZTE, HiSilicon have
Ltd., joint source digital audio and video technology (Beijing) Co., Ltd.
The main drafters of this section. Gao, Huang Tiejun, Wu Feng, Yun Ho, Yu Lu, Liang Fan, Zhaohai Wu, Ma Siwei, Lu Yan, Li Guoping, Zhang Zhiming,
Shen Yanfei, Zhou Minhua TRANSACTIONS Wei, Guo star, Lou Jian, bear gathering, Zheng Xiao Zhen, Zhang Li, Zheng Hua, Sun Li, Mao Xu Nan.
Introduction
0.1 Target
GB/T 20090.2 is to adapt to the digital television broadcasting, digital storage media, network streaming, multimedia communications applications such as motion
Image compression technology and the need to develop.
0.2 Applications
Scope This section applies include, but are not limited to the following areas.
--- Digital terrestrial television broadcasting (DTTB, digitalterrestrialtelevisionbroadcasting);
--- TV (CATV, CableTV);
--- Interactive storage media;
--- Satellite video broadcast services (DBS, directbroadcastsatelitevideoservices);
--- Broadband video services;
--- Multimedia messages;
--- Packet network multimedia services (MSPN, multimediaservicesonpacketnetworks);
--- Real-time traffic (video conferencing, video telephony, etc.);
--- Remote video surveillance.
And 0.3 grade levels
This section can support multiple bit rate, resolution and quality video compression. Taking into account the interoperability, quality definitions in this section apply when
And levels.
--- Grade is specified in this subset of the syntax, semantics and algorithms;
--- Level is set to define the syntax elements and syntax element parameter values \u200b\u200bat a certain level.
0.4 Technical Overview
This section uses a series of techniques to achieve high efficiency video coding, including intra prediction, inter prediction, transform, quantization and entropy coding
Wait. Inter prediction using the motion vector based on the block to eliminate redundancy between the images; intra prediction mode to eliminate the use of space within the image prediction
Redundancy. By then transformed and quantized prediction residual visual eliminate redundancy within the image. Finally, the motion vector, predictive mode, quantization
Parameters and transformation coefficients entropy coding compression.
0.4.1 Prediction Technology
Intra-prediction without reference to other pictures, predictive coded using intra picture as a randomly accessible point after the coding sequence.
Requires inter prediction reference image previously decoded, the decoded sequence can be captured sequentially processed in the encoder or from a source image decoding
Different order output for display. Inter prediction accuracy in motion vector can reach 1/4 or 1/8 pixel motion vector predictive
coding.
0.4.2 Image Block
This part of the basic processing unit of the video decoding process is a macroblock. A macroblock comprises a block of luminance samples and the corresponding 16 × 16
The chrominance block of samples. Macroblocks can be further divided into minimum blocks of 8 × 8 or 4 × 4 samples to predict.
0.4.3 transform and quantization
Transform unit block of samples is 8 × 8 or 4 × 4 in. Scalar-quantized transform coefficients.
0.5 How to read this section
Readers from Chapter 1 (range), then go to Chapter 2 (Terms and definitions). Chapter 5 describes the bit stream syntax, parsing process
And decoding process. Chapter 6 defines the structure of the encoded bit stream. Chapter 7 (syntax and semantics) defines the syntax and semantics of bit streams. 7.1 syntax
Description defines the bitstream syntax elements in order of appearance; 7.2 semantic description, that the scope of the syntax elements, limitations and conditions. Chapter 8 set
Righteousness parsing syntax elements. Finally, Chapter 9 (decoding) defines the syntax elements mapped to decode samples. After reading this
Part of the process, the reader needs to read Chapter 2 (Terms and Definitions), Chapter 3 (Abbreviations), Chapter 4 (operators and mathematical functions) and
appendix.
0.6 Fact Sheets related patents
When this part of the release mechanism to draw attention to this part of the statement of compliance may involve 8.2,9.2,9.3,9.4.2,9.4.5,9.4.6.2,
9.4.9,9.5.1,9.5.2,9.7,9.8,9.10.2,9.10.2.2,9.12 and Appendix A related to the use of patents.
This part of the patent issuing authority for the authenticity, validity and scope without any position.
The patent holder has to ensure that the issuing authority of this section, he is willing under non-discriminatory terms and conditions with applicants at any reasonable and,
Patent licensing negotiations. The patent holder has filed a statement in this section of the release mechanism.
In this part of the drafting process, the drafting of the organizers of digital audio and video codec technology standards working group working group members sign a consent in accordance with
Statutes and regulations relating to intellectual property and patent disclosure and licensing declaration and other members of the proposal raised during the review and other standard may be involved
The patent has been identified. We have to ascertain the patent holder The following table lists the holding portion of the patent.
Patent holder address
6 Haidian District, Beijing Institute of Technology Academy Road (100080) Institute of Computing
Zhejiang Institute of Information and Communication Engineering, Zhejiang University, Hangzhou (310027)
Huazhong University of Science and Technology, Wuhan, Hubei Luo Yu Road, Hongshan District No. 1037 of Electronics and Information Engineering (430074)
Tsinghua University, Tsinghua University, Beijing Haidian District Electronic Engineering (100084)
Chaoyang District, Beijing No. 100 Pingleyuan Computer Institute of Beijing University of Technology (100022)
Huawei Technologies Co., Ltd., Guangdong Province, Longgang District, Shenzhen Huawei Base, Bantian Multimedia Business Unit (518057)
Shanghai SVA (Group) Co., Ltd. Xietu Road, Shanghai SVA Academia Sinica 1646 (200233)
He said patent owner's consent is necessary for this part of the patent held by the terms and conditions based on reasonable and non-discriminatory by AVS
Patent pool for licensing. By the Audio Video Coding Standard Working Group to promote the establishment of AVS Patent Pool Administration Board is decided exclusively
Lee independent body cell specific license terms. For all patent pool patents, standards implementers can be recognized by the Patent Pool Administration Board
The authority permission. Relevant information can be obtained from the Secretariat of Audio Video Coding Standard Working Group, contact the following.
Contact. Huang Tiejun (Digital Audio Video Coding Standard Workgroup of the Secretary-General)
Mailing Address. Box 2704 Beijing 31 Binning
Postal Code. 100080
Email. [email protected]
Tel. 10-58858303, 10-58858300-303
Fax. 10-58858301
Please note that in addition to the above patents, some of the contents of this section may still involve patents. This part of the release mechanism does not undertake to identify these special
Lee responsibility.
They advanced audio and video coding
Part 2. Video
1 Scope
GB/T 20090 specifies the digital audio and video compression, decompression, processing and technical solutions indicated. This section GB/T 20090 of
It provides video compression and decoding processes multiple bit rate, resolution and quality.
This section applies to standard resolution and high-resolution digital television broadcasting, laser digital storage media, Internet broadband streaming media, multi-media
Telecommunication applications. This section applies to digital television broadcasting, interactive storage media, direct broadcast satellite video services, multimedia message, the packet network
Network multimedia services, real-time traffic, remote video surveillance and other applications.
2 Terms and definitions
The following terms and definitions apply to this document.
2.1
Reserved reserved
It defines the specific syntax element value for the future expansion of this section.
Note. The value of the bit stream of this section does not appear that match.
2.2
Variable-length coding variablelengthcoding
Entropy encoding a reversible process, it will short code words are allocated to a higher frequency of symbols appear, the long code words are allocated to the frequency of occurrence than the
Low symbols.
2.3
Transform coefficients transformcoefficient
A scalar transform domain.
2.4
Coded representation encodingpresentation
In the form of encoded data.
2.5
Encoding process encodingprocess
The process that meets the portion of the bit stream.
Note. This section does not specify the procedure.
2.6
Encoder encoder
Realize the encoding process.
2.7
Encoded image codedpicture
An image coded representation.
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