MPEG2国际标准：ISO13818-1:system

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INTERNATIONAL ORGANISATION FOR STANDARDISATION
ORGANISATION INTERNATIONALE DE NORMALISATION
ISO/IEC JTC1/SC29/WG11
CODING OF MOVING PICTURES AND ASSOCIATED AUDIO
ISO/IEC JTC1/SC29/WG11 N0801
13 November 1994
Systems

















INFORMATION TECHNOLOGY -
GENERIC CODING OF MOVING PICTURES AND ASSOCIATED AUDI SYSTEMS
Recommendation H.222.0
ISO/IEC 13818-1
International Standard
Draft of:    1540 Sun 13 Nov 1994




© ISO/IEC 1994
All rights reserved.  No part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from the publisher.

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Printed in Switzerland.




ContentsPage


Foreword             ix
Introduction - PART 1 Systems             x
0.1 Transport Stream xii
0.2 Program Stream xiv
0.3 Conversion between Transport Stream and Program Stream xv
0.4 Packetized Elementary Stream xvi
0.5 Timing model xvi
0.6 Conditional access xvi
0.7 Multiplex-wide operations xvii
0.8 Individual stream operations xvii
0.8 1 De-multiplexing xvii
0.8 2 Synchronization xvii
0.8 3 Relation to compression layer xviii
0.9 System reference decoder xviii
0.10 Applications xviii
Section 1: General             1
1.1 Scope 1
1.2 References 1
1.3 Identical Recommendations |International Standards 2
1.4 Additional references 2
Section 2 Technical elements             3
2.1 Definitions 3
2.2 Symbols and abbreviations 6
2.2.1Arithmetic operators 6
2.2.2 Logical operators 7
2.2.3 Relational operators 7
2.2.4 Bitwise operators 8
2.2.5 Assignment 8
2.2.6 Mnemonics 8
2.2.7 Constants 9
2.3 Method of describing bit stream syntax 9
2.4 Transport Stream bitstream requirements 10
2.4.1 Transport Stream coding structure and parameters 10
2.4.2 Transport Stream system target decoder 11
2.4.3 Specification of the Transport Stream syntax and semantics 21
2.4.3.1 Transport Stream 21
2.4.3.2 Transport Stream packet layer 22
2.4.3.3 Semantic definitions of fields in Transport Stream packet layer 22
2.4.3.4 Adaptation field 24
2.4.3.5 Semantic definitions of fields in adaptation field 25
2.4.3.6 PES packet 33
2.4.3.7 Semantic definitions of fields in PES packet 36
2.4.3.8 Carriage of Program Streams and ISO/IEC 11172-1 Systems streams in the Transport Stream 44
2.4.4 Program specific information 44
2.5 Program Stream bitstream requirements 53
2.5.1 Program Stream coding structure and parameters 53
2.5.2 Program Stream system target decoder 53
2.5.3 Specification of the Program Stream syntax and semantics 57
2.5.3.1 Program Stream 57
2.5.3.2 Semantic definition of fields in Program Stream 58
2.5.3.3 Pack layer of Program Stream 58
2.5.3.4 Semantic definition of fields in program stream pack 59
2.5.3.5 System header 59
2.5.3.6 Semantic definition of fields in system header 60
2.5.4 Program Stream map 62
2.5.5 Program Stream directory 64
2.6 Program and program element descriptors 67
2.6.1 Semantic definition of fields in program and program element descriptors 67
2.6.2 Video stream descriptor 68
2.6.3 Semantic definition of fields in video stream descriptor 69
2.6.4 Audio stream descriptor 70
2.6.5 Semantic definition of fields in audio stream descriptor 70
2.6.6 Hierarchy descriptor 70
2.6.7 Semantic definition of fields in hierarchy descriptor 71
2.6.8 Registration descriptor 71
2.6.9 Semantic definition of fields in registration descriptor 72
2.6.10 Data stream alignment descriptor 72
2.6.11 Semantic definition of fields in data stream alignment descriptor 72
2.6.12 Target background grid descriptor 73
2.6.13 Semantic definition of fields in target background grid descriptor 73
2.6.14 Video window descriptor 74
2.6.15 Semantic definition of fields in video window descriptor 74
2.6.16 Conditional access descriptor 74
2.6.17 Semantic definition of fields in conditional access descriptor 75
2.6.18 ISO 639 language descriptor 75
2.6.19 Semantic definition of fields in ISO 639 language descriptor 75
2.6.20 System clock descriptor 76
2.6.21 Semantic definition of fields in system clock descriptor 76
2.6.22 Multiplex buffer utilization descriptor 76
2.6.23 Semantic definition of fields in multiplex buffer utilization descriptor 77
2.6.24 Copyright descriptor 77
2.6.25 Semantic definition of fields in copyright descriptor 77
2.6.26 Maximum bitrate descriptor 78
2.6.27 Semantic definition of fields in maximum bitrate descriptor 78
2.6.28 Private data indicator descriptor 78
2.6.29 Semantic definition of fields in Private data indicator descriptor 78
2.6.30 Smoothing buffer 78
2.6.31 Semantic definition of fields in smoothing buffer descriptor 79
2.6.32 STD descriptor 79
2.6.33 Semantic definition of fields in STD descriptor 80
2.6.34 IBP_descriptor 80
2.6.35 Semantic definition of fields in IBP_descriptor 80
2.7 Restrictions on the multiplexed stream semantics 80
2.7.1 Frequency of coding the system clock reference 80
2.7.2 Frequency of coding the program clock reference 81
2.7.3 Frequency of coding the elementary stream system clock reference 81
2.7.4 Frequency of presentation_time_stamp coding 81
2.7.5 Conditional coding of time stamps 81
2.7.6 Timing constraints for scalable coding 82
2.7.7 Frequency of coding P-STD_buffer_size in PES packet headers 83
2.7.8 Coding of system header in the Program Stream 83
2.7.9 Constrained system parameter Program Stream 83
2.7.10 Transport Stream 84
2.8 Compatibility with ISO/IEC 11172 85

Annexes

A Digital Storage Medium Command and Control [DSM CC]             86
B CRC Decoder Model             98
C Program Specific Information             100
D ITU-T Rec. H.222.0 |ISO/IEC 13818-1 Systems Timing Model and Application Implications             109
E Data Transmission Applications             120
F Graphics of Syntax for ITU-T Rec. H.222.0 | ISO/IEC 13818-1             121
G General Information             127
H Private Data             128
I List of companies having provided patent statements for ITU-T Rec H.222.0 | ISO/IEC 13818             130
J Systems conformance and real-time interface             132
K Interfacing Jitter-Inducing Networks to MPEG-2 Decoders             133
L Splicing Transport Streams             137



List of Figures

0-1 -- Simplified overview of ITU-T Rec. H.222.0 | ISO/IEC 13818-1 scope             xi
0-2 -- Prototypical transport demultiplexing and decoding example             xiii
0-3 -- Prototypical transport multiplexing example             xiii
0-4 -- Prototypical Transport Stream to Program Stream conversion             xiv
0-5 -- Prototypical decoder for program streams             xv
2-6 -- Transport Stream system target decoder notation             12
2-7 -- Program Stream system target decoder notation             54
2-8 -- Target background grid descriptor display area             73
A-1 -- Configuration of DSM CC application             88
A-2 -- DSM CC bitstream decoded as a standalone bitstream             89
A-3 -- DSM CC bitstream decoded as part of the system bitstream             89
B-1 -- 32 bit CRC decoder model             98
C-1 -- Program and network mapping relationships             104
D-1 -- Constant delay model             109
D-2 -- STC recovery using PLL             113
F-1 -- Transport Stream syntax diagram             121
F-2 -- PES packet syntax diagram             122
F-3 -- Program association section diagram             122
F-4 -- Conditional access section diagram             123
F-5 -- TS program map section diagram             123
F-6 -- Private section diagram             124
F-7 -- Program Stream diagram             125
F-8 -- Program Stream map diagram             125
K-1 -- Sending system streams over a jitter-inducing network             134
K-2 -- Jitter smoothing using network-layer timestamps             135
K-3 -- Integrated dejittering and MPEG-2 decoding             136




List of Syntax Tables

2-1 -- Next start code             10
2-2 -- Transport Stream             21
2-3 -- ITU-T Rec. H.222.0 | ISO/IEC 13818 transport packet             22
2-4 -- PID table             23
2-5 -- Scrambling control values             23
2-6 -- Adaptation field control values             23
2-7 -- Transport Stream adaptation field             24
2-8 -- Splice parameters table 1             30
2-9 -- Splice parameters table 2             31
2-10 -- Splice parameters table 3             31
2-11 -- Splice parameters table 4             31
2-12 -- Splice parameters table 5             31
2-13 -- Splice parameters table 6             32
2-14 -- Splice parameters table 7             32
2-15 -- Splice parameters table 8             32
2-16 -- Splice parameters table 9             32
2-17 -- Splice parameters table 10             32
2-18 -- PES packet             33
2-19 -- Stream_id assignments             36
2-20 -- PES scrambling control values             37
2-21 -- Trick mode control values             40
2-22 -- Field_id field control values             41
2-23 -- Coefficient selection values             42
2-24 -- Program specific information             45
2-25 -- Program specific information pointer             46
2-26 -- Program association section             47
2-27 -- table_id assignment values             47
2-28 -- Conditional access section             49
2-29 -- Transport Stream program map section             50
2-30 -- Private section             52
2-31 -- Program Stream             58
2-32 -- Program Stream pack             58
2-33 -- Program Stream pack header             58
2-34 -- Program Stream system header             59
2-35 -- Program Stream map             63
2-36 -- Stream type assignments             64
2-37 -- PES packet syntax for Program Stream directory             65
2-38 -- Intra_coded indicator             67
2-39 -- Coding_parameters indicator             67
2-40 -- Program and program element descriptors             68
2-41 -- Video stream descriptor             69
2-42 -- Frame rate code             69
2-43 -- Audio stream descriptor             70
2-44 -- Hierarchy descriptor             71
2-45 -- Hierarchy descriptor values             71
2-46 -- Registration descriptor             72
2-47 -- Data stream alignment descriptor             72
2-48 -- Video stream alignment values             72
2-49 -- Audio stream alignment values             73
2-50 -- Target background grid descriptor             73
2-51 -- Video window descriptor             74
2-52 -- Conditional access descriptor             75
2-53 -- ISO 639 language descriptor             75
2-54 -- Audio type values             75
2-55 -- System clock descriptor             76
2-56 -- Multiplex buffer utilization descriptor             77
2-57 -- Copyright descriptor             77
2-58 -- Maximum bitrate descriptor             78
2-59 -- Private data indicator descriptor             78
2-60 -- Smoothing buffer descriptor             79
2-61 -- STD Descriptor             79
A-1 -- ISO/IEC 13818-1 DSM CC             91
A-2 -- Command_id assigned values             91
A-3 -- DSM_CC control             93
A-4 -- Select mode assigned values             94
A-5 -- DSM CC Acknowledgement             95
A-6 -- Time code             96
C-1 -- Composite_descriptor             106
C-2 -- Sub-descriptor             106
C-3 -- Program association table bandwidth usage (bps)             107
C-4 -- Program map table bandwidth usage (bps)             107
D-1 -- Remultiplexing strategy             115
E-1 -- PES packet header example             120
I-1 -- List of companies supplying patent statements             130



List of Equations
2-1 -- PCR base             14
2-2 -- PCR extension             14
2-3 -- Program Clock Reference             14
2-4 -- Input arrival time             15
2-5 -- Transport rate             15
2-6 -- System information main buffer transfer rate             19
2-7 -- OPCR base             28
2-8 -- OPCR extension             28
2-9 -- OPCR             28
2-10 -- Presentation timestamp             38
2-11 -- Decode timestamp             39
2-12 -- Elementary stream clock reference base             39
2-13 -- Elementary stream clock reference extension             39
2-14 -- Elementary stream clock reference             39
2-15 -- Buffer size for audio stream             43
2-16 -- Buffer size for video stream             43
2-17 -- System clock reference base             55
2-18 -- System clock reference extension             55
2-19 -- System clock reference             55
2-20 -- Arrival time             56
2-21 -- SCR base for CBR Program Stream             60
2-22 -- SCR extension for CBR Progam Stream             60
2-23 -- Ratio of system clock frequency and audio sample rate             60
2-24 -- Ratio of system clock frequency to video picture rate             61
2-25 -- Clock accuracy determination             76
2-26 -- Packet rate             83
2-27 -- Packet Rate             83
2-28 -- Maximum packet rate             83
2-29 -- Sample rate locking in Transport Stream             84
2-30 -- Ratio of system clock frequency to video picture rate             84[br]<p align=right><font color=red>+3 RD币</font></p>