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GB/T 20090.11-2015: Information technology -- Advanced coding of audio and video -- Part 11: Synchronous text
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 20090.11-2015 | English | 339 |
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Information technology -- Advanced coding of audio and video -- Part 11: Synchronous text
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GB/T 20090.11-2015
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Basic data | Standard ID | GB/T 20090.11-2015 (GB/T20090.11-2015) | | Description (Translated English) | Information technology -- Advanced coding of audio and video -- Part 11: Synchronous text | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | L71 | | Classification of International Standard | 35.040 | | Word Count Estimation | 16,182 | | Date of Issue | 2015-12-10 | | Date of Implementation | 2016-08-01 | | Quoted Standard | GB/T 1988-1998; GB 2312-1980; GB/T 4880.3-2009; GB 13000-2010; GB/T 18793-2002; RFC 3629 | | Regulation (derived from) | National Standard Announcement 2015 No.38 | | 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 format of the terminal equipment and other audio and video media synchronization rendered text (synchronous text). This standard applies to digital television broadcasting, digital storage media, Internet streaming media, multimedia communications and other applications. | GB/T 20090.11-2015: Information technology -- Advanced coding of audio and video -- Part 11: Synchronous text
---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 11. Synchronous text
ICS 35.040
L71
National Standards of People's Republic of China
They advanced audio and video coding
Part 11. Synchronized Text
Part 11. Synchronoustext
Issued on. 2015-12-10
2016-08-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Table of Contents
Introduction Ⅲ
1 Scope 1
2 Normative references 1
3 Terms and definitions
4 Abbreviations 1
5 2 text display properties
5.1 UTF-8 support 2
5.2 byte character 2
5.3 Character Set Support 2
5.4 2 font support
5.5 color support 2
5.6 Text Display Position 3
5.7 subtitles rolling 3
5.8 4 language
4 5.9 Writing Direction
Text wrapping 4 5.10
5.11 highlights, annotations, and Kara OK 4
6 synchronized text format 4
6.1 Conventions 4
6.2 Synchronized Text sequence 5
6.3 The text sequence header format 6
6.3.1 Overview 6
6.3.2 Language elements 6
6.3.3 Layer element 6
6.3.4 Timeinfo element 6
6.3.5 Position element 6
6.4 Sample description set format 6
6.4.1 Overview 6
6.4.2 Sample Description Format 7
6.5 9 text sample format
6.5.1 Overview 9
6.5.2 Text elements 9
6.5.3 Dur element 9
6.5.4 SD_id element 9
6.5.5 Modifiers element 9
Foreword
GB/T 20090 "Information technology advanced audio and video coding" is expected to be 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.
You may also add other subsequent section.
This section GB/T Part of 1,120,090.
This section drafted in accordance with GB/T 1.1-2009 given rules.
Please note that some of the content of this document may involve patents. Release mechanism of the present document does not assume responsibility for the identification of these patents.
This part of the National Information Technology Standardization Technical Committee (SAC/TC28) and focal points.
This section drafted by. Peking University, Chinese Academy of Sciences Institute of Computing Technology, Beijing University of Posts and Telecommunications.
The main drafters of this section. Mou Lun Tian, \u200b\u200bHuo Long community, Zhouxiao Cong, Chen Xilin, Wang Lei, Huang Tiejun, Gawain.
They advanced audio and video coding
Part 11. Synchronized Text
1 Scope
GB/T 20090 provisions of this part of the terminal equipment and other audio and video media synchronization rendered text (synchronous text)
format.
This section applies to digital television broadcasting, digital storage media, Internet streaming media, multimedia communications and other applications.
2 Normative references
The 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 1988-1998 Technical information interchange bit coded character set
GB 2312-1980 exchange of information with Chinese characters coded character set basic set
GB/T 4880.3-2009 Language Name Code - Part 3. 3-letter code in all languages
GB 13000-2010 Information technology - Universal Multiple-Octet Coded Character Set (UCS)
GB/T 18793-2002 Information technology - Extensible Markup Language (XML) 1.0
RFC3629 8-Bit Universal Character Set Transformation Format (UTF-8, atransformationformatofISO 10646)
3 Terms and Definitions
The following terms and definitions apply to this document.
3.1
Synchronized Text synchronoustext
With a time attribute, and audio or video synchronization rendered text.
3.2
Text synchronization sequence synchronoustextsequence
Synchronization sequence consists of a series of consecutive sample text thereof.
3.3
Sample sample
Components of the basic unit synchronized text sequences.
3.4
Sample description sampledescription
Defined text string to display template properties.
4 Abbreviations
The following abbreviations apply to this document.
XML Extensible Markup Language (ExtensibleMarkupLanguage)
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