谢谢。
E-Book (Draft Version 2.0.2)
FOREWORD ................................................................................................................. 7
INTRODUCTION............................................................................................................ 8
1 Scope ..................................................................................................................... 9
2 Normative references ............................................................................................... 9
3 Abbreviations and symbols ......................................................................................11
4 Receiver capabilities ...............................................................................................11
4.1 Frequency spectrum .......................................................................................11
4.2 Conditional access .........................................................................................12
4.3 Return path....................................................................................................12
4.4 Navigator (SI) ................................................................................................12
4.5 Auto installation .............................................................................................12
4.6 Teletext carried in digital streams.....................................................................12
4.7 Analogue recording/copy management .............................................................12
4.8 Services ........................................................................................................12
4.9 Future versions of this specification..................................................................13
5 Video system characteristics....................................................................................13
5.1 Introduction ...................................................................................................13
5.2 Essential requirements....................................................................................13
5.3 Constraints and extensions .............................................................................13
5.3.1 Support for rapid channel acquisition.....................................................13
5.3.2 Picture types.......................................................................................13
5.3.3 ISO/IEC 11172-2 compatibility ..............................................................14
5.3.4 User data ...........................................................................................14
5.3.5 Video alignment ..................................................................................14
6 Video display formatting ..........................................................................................15
6.1 Introduction ...................................................................................................15
6.2 Video format ..................................................................................................15
6.2.1 Requirements for DVB compliance ........................................................15
6.3 Recommendations for signalling in the video stream ..........................................16
6.3.1 Sequence header ................................................................................16
6.3.2 Sequence display extension .................................................................16
6.3.3 Constraints on the use of the picture display extension ...........................17
6.3.4 Format switching .................................................................................17
6.4 Video format signalling extensions ...................................................................18
6.4.1 MPEG signalling..................................................................................18
6.4.2 DVB signalling ....................................................................................18
6.4.3 Active format description ......................................................................18
6.5 Recommendations for ISO/IEC 13818-1 signalling .............................................25
6.6 Alignment of video and graphics ......................................................................25
6.6.1 Video with graphics .............................................................................25
6.6.2 Uncertainty of position of graphics over video.........................................25
7 Audio system characteristics....................................................................................26
7.1 Introduction ...................................................................................................26
7.2 Essential requirements....................................................................................26
7.2.1 Scope of requirements .........................................................................26
7.2.2 Synchronisation...................................................................................26
62216-1 Ó IEC:2001(E) – 3 –
7.2.3 Decoding requirements ........................................................................27
7.3 Constraints and extensions .............................................................................27
7.3.1 Surround sound...................................................................................27
7.4 Audio description............................................................................................27
7.4.1 Background (informative) .....................................................................27
7.4.2 Receiver implementation minima...........................................................27
7.4.3 Signalling ...........................................................................................27
7.4.4 Constraints on audio description stream coding ......................................31
7.4.5 Implementation notes...........................................................................31
7.5 Audio only services.........................................................................................33
7.6 PSI signalling.................................................................................................33
8 Multiplex and transport stream characteristics............................................................33
8.1 Scope ...........................................................................................................33
8.2 Essential requirements....................................................................................33
8.2.1 Multiplexing ........................................................................................33
8.2.2 Demultiplexing ....................................................................................34
8.3 Constraints and extensions .............................................................................34
8.3.1 Multicomponent programs ....................................................................34
9 Service and program specific information ..................................................................35
9.1 Introduction ...................................................................................................35
9.1.1 General requirements ..........................................................................35
9.1.2 General receiver requirements ..............................................................35
9.1.3 General broadcaster requirements ........................................................36
9.1.4 Notation .............................................................................................37
9.2 SI & PSI Specification .....................................................................................37
9.2.1 Summary............................................................................................37
9.2.2 Program association table ....................................................................38
9.2.3 Program map table ..............................................................................38
9.2.4 Conditional access table ......................................................................40
9.2.5 Network information table.....................................................................40
9.2.6 Bouquet association table ....................................................................42
9.2.7 Service description table ......................................................................42
9.2.8 Event information table ........................................................................45
9.2.9 Time and date table and time offset table...............................................47
9.2.10 Running status table ............................................................................48
9.2.11 Private data ........................................................................................48
9.3 Receiver functions..........................................................................................53
9.3.1 Information typically available to the user...............................................53
9.3.2 Service change ...................................................................................54
9.3.3 Parental control ...................................................................................56
9.3.4 Receiver behaviour when a service stops...............................................56
9.4 Establishing and maintaining the network connection .........................................57
9.4.1 Use of SI identifiers .............................................................................57
9.4.2 Auto installation ..................................................................................58
9.4.3 Network evolution ................................................................................60
9.4.4 Logical channel numbers (LCN) ............................................................62
9.4.5 Recommendation for robust SI acquisition .............................................66
9.5 User interface ................................................................................................68
9.5.1 Presentation of text .............................................................................68
– 4 – 62216-1 Ó IEC:2001(E)
9.5.2 Information presentation.......................................................................69
9.5.3 Service navigation ...............................................................................70
9.5.4 Display of time ....................................................................................71
9.6 Recording devices ..........................................................................................71
9.6.1 Programming ......................................................................................71
9.6.2 Execution of recording .........................................................................72
9.6.3 Control of analogue recorders...............................................................72
10 Subtitles ................................................................................................................73
10.1 Introduction ...................................................................................................73
10.2 Broadcast specifications .................................................................................73
10.2.1 DVB subtitles ......................................................................................73
10.2.2 Signalling ...........................................................................................73
10.2.3 Recommendation ................................................................................74
10.3 Receiver functions..........................................................................................74
10.3.1 Background ........................................................................................74
10.3.2 User control of receiver behaviour.........................................................74
11 VBI based services .................................................................................................75
11.1 Introduction ...................................................................................................75
11.2 Broadcast specifications .................................................................................75
11.3 Receiver functions..........................................................................................75
11.3.1 Processing capabilities ........................................................................75
11.3.2 Control ...............................................................................................75
11.4 Extended VBI format support ...........................................................................76
11.4.1 VPS ...................................................................................................76
11.4.2 WSS ..................................................................................................76
11.4.3 Teletext and teletext subtitles ...............................................................76
12 RF-part and channel decoder ...................................................................................76
12.1 General .........................................................................................................76
12.2 Frequencies and channel bandwidth.................................................................77
12.3 DVB-T modes ................................................................................................77
12.4 Tuning procedure ...........................................................................................77
12.5 Change of modulation parameters....................................................................77
12.6 Connector......................................................................................................77
12.7 Performance ..................................................................................................77
12.7.1 C/N performance .................................................................................78
12.7.2 Minimum receiver signal input levels .....................................................78
12.7.3 Maximum input level ............................................................................79
12.7.4 Resistanceto analogue and/or digital signals in other channels ................79
12.7.5 Resistance to co-channel interference from analogue TV signals..............79
12.7.6 Guard interval utilisation in single frequency networks.............................80
13 Conditional access and the common interface............................................................81
13.1 Introduction ...................................................................................................81
13.2 Minimum Requirements...................................................................................82
Annex A (normative) SI character set.............................................................................85
A.1 Set of languages supported .............................................................................85
A.2 Structure of character table .............................................................................85
Annex B (normative) DVB-SI PDC descriptor ..................................................................94
B.1 Introduction ...................................................................................................94
62216-1 Ó IEC:2001(E) – 5 –
B.2 PDC descriptor...............................................................................................94
Annex C (informative) Bootloader and software download ..................................................
C.1 Overview ..........................................................................................................
C.2 Signalling .........................................................................................................
C.3 User interface ...................................................................................................
Annex D (normative) Subtitling ......................................................................................96
D.1 Introduction ...................................................................................................96
D.2 Essential requirements....................................................................................96
D.3 Corrigenda to EN 300 743 ...............................................................................96
D.4 Clarifications to EN 300 743 ............................................................................97
D.5 Revised decoder model................................................................................. 103
D.6 UK specific features...................................................................................... 109
D.7 OSD Conflicts .............................................................................................. 110
D.8 System capabilities (informative).................................................................... 110
D.9 Encoding Guidelines (informative) .................................................................. 110
D.10 Decoder treatment of errors........................................................................... 111
Annex E (informative) An example of frequencies and offsets......................................... 113
E.1 UHF............................................................................................................ 113
E.2 VHF ............................................................................................................ 113
Annex F (informative) Noise model .............................................................................. 114
Annex G (informative) An example of C/N-performance with a practical transmitter .......... 115
Bibliography ............................................................................................................... 121
Figure 1 – Relationship between digital video and analogue video .....................................14
Figure 2 – Receiver and display format processing reference model ..................................20
Figure 3 – Uncertainty of positioning graphics over video..................................................26
Figure 4 – Illustration of control of audio level ..................................................................28
Figure 5 – Mapping of pan byte onto sound presentation ..................................................31
Figure 6 – The “cold-cut” approach illustrated ..................................................................32
Figure 7 – Generic single external decoder approach illustrated ........................................32
Figure 8 – Possible single external decoder approaches illustrated ....................................33
Figure 9 – Service regionalisation...................................................................................63
Figure D.1 – High level bitstream organisation .................................................................98
Figure D.2 – Region depth selection ............................................................................. 100
Figure D.3 – Mapping code strings to pixels in “requested” depth region........................... 101
Figure D.4 – Mapping code strings to pixels .................................................................. 102
Figure D.5 – Subtitle reference decoder model .............................................................. 104
Figure D.6 – The two modelled decoding phases ........................................................... 105
Figure D.7 – Detail of data decoding phase ................................................................... 106
Figure D.8 – Disruption to display at start of new epoch.................................................. 106
Figure F.1 – Tuner Noise Model ................................................................................... 114
Table 1 – Horizontal scaling where format is signalled by the sequence header alone..........16
Table 2 – Pan scan window ...........................................................................................16
Table 3 – Non “full screen” ............................................................................................17
Table 4 – Formats described by the active_format description ...........................................18
– 6 – 62216-1 Ó IEC:2001(E)
Table 5 – Processing by STB connected to 4:3 TV ...........................................................21
Table 6 – User options for displaying 16:9 on 4:3 .............................................................22
Table 7 – User options for displaying >16:9 on 4:3 ...........................................................22
Table 8 – Processing by STB connected to 16:9 TV .........................................................23
Table 9 – WSS codes for aspect ratio .............................................................................24
Table 10 – Values for other WSS bits..............................................................................24
Table 11 – Audio Description Descriptor..........................................................................28
Table 12 – Illustration of PES packet header ...................................................................30
Table 13 – Key to symbols.............................................................................................37
Table 14 – Summary of required tables ...........................................................................37
Table 15 – Program descriptors......................................................................................38
Table 16 – Elementary streams descriptors .....................................................................38
Table 17 – Network descriptors (first loop) ......................................................................41
Table 18 – Transport stream descriptors (second loop).....................................................42
Table 19 – Service descriptors .......................................................................................43
Table 20 – Event information descriptors.........................................................................45
Table 21 – Time Offset Table descriptors ........................................................................47
Table 22 – Private SI recognised by this specification.......................................................48
Table 23 – Syntax of the eacem stream identifier descriptor ..............................................48
Table 24 – Syntax of the logical channel descriptor ..........................................................49
Table 25 – Logical Channel Number ...............................................................................50
Table 26 – Syntax of the preferred name list descriptor ....................................................51
Table 27 – Syntax of the preferred name identifier descriptor ............................................52
Table 28 – Subtitle preference modes defined .................................................................54
Table 29 – Receiver Response to Missing SI Tables ........................................................67
Table 30 – Text Field Lengths ........................................................................................68
Table 31 – Subtitle preference modes defined .................................................................74
Table 32 – C/N (dB) for Reference BER .............................................................................
Table A.1 – Allowed character codes in SI text fields........................................................86
Table B.1 – Syntax of the PDC descriptor........................................................................94
Table C.1 – Example download information structure ..........................................................
Table D.1 – Corrigenda to EN 300 743............................................................................96
Table D.2 – Notes to Figure D-1 ................................................................................... 113
Table D.3 – Additional display update budget for page/region operations.......................... 107
Table D.4 – End of display set segment syntax .............................................................. 109
Table D.5 – Example subtitle system performance ......................................................... 110
Table G.1 – C/N (dB) for Reference BER ...................................................................... 115
谢谢。
E-Book (Draft Version 2.0.2)
FOREWORD ................................................................................................................. 7
INTRODUCTION............................................................................................................ 8
1 Scope ..................................................................................................................... 9
2 Normative references ............................................................................................... 9
3 Abbreviations and symbols ......................................................................................11
4 Receiver capabilities ...............................................................................................11
4.1 Frequency spectrum .......................................................................................11
4.2 Conditional access .........................................................................................12
4.3 Return path....................................................................................................12
4.4 Navigator (SI) ................................................................................................12
4.5 Auto installation .............................................................................................12
4.6 Teletext carried in digital streams.....................................................................12
4.7 Analogue recording/copy management .............................................................12
4.8 Services ........................................................................................................12
4.9 Future versions of this specification..................................................................13
5 Video system characteristics....................................................................................13
5.1 Introduction ...................................................................................................13
5.2 Essential requirements....................................................................................13
5.3 Constraints and extensions .............................................................................13
5.3.1 Support for rapid channel acquisition.....................................................13
5.3.2 Picture types.......................................................................................13
5.3.3 ISO/IEC 11172-2 compatibility ..............................................................14
5.3.4 User data ...........................................................................................14
5.3.5 Video alignment ..................................................................................14
6 Video display formatting ..........................................................................................15
6.1 Introduction ...................................................................................................15
6.2 Video format ..................................................................................................15
6.2.1 Requirements for DVB compliance ........................................................15
6.3 Recommendations for signalling in the video stream ..........................................16
6.3.1 Sequence header ................................................................................16
6.3.2 Sequence display extension .................................................................16
6.3.3 Constraints on the use of the picture display extension ...........................17
6.3.4 Format switching .................................................................................17
6.4 Video format signalling extensions ...................................................................18
6.4.1 MPEG signalling..................................................................................18
6.4.2 DVB signalling ....................................................................................18
6.4.3 Active format description ......................................................................18
6.5 Recommendations for ISO/IEC 13818-1 signalling .............................................25
6.6 Alignment of video and graphics ......................................................................25
6.6.1 Video with graphics .............................................................................25
6.6.2 Uncertainty of position of graphics over video.........................................25
7 Audio system characteristics....................................................................................26
7.1 Introduction ...................................................................................................26
7.2 Essential requirements....................................................................................26
7.2.1 Scope of requirements .........................................................................26
7.2.2 Synchronisation...................................................................................26
62216-1 Ó IEC:2001(E) – 3 –
7.2.3 Decoding requirements ........................................................................27
7.3 Constraints and extensions .............................................................................27
7.3.1 Surround sound...................................................................................27
7.4 Audio description............................................................................................27
7.4.1 Background (informative) .....................................................................27
7.4.2 Receiver implementation minima...........................................................27
7.4.3 Signalling ...........................................................................................27
7.4.4 Constraints on audio description stream coding ......................................31
7.4.5 Implementation notes...........................................................................31
7.5 Audio only services.........................................................................................33
7.6 PSI signalling.................................................................................................33
8 Multiplex and transport stream characteristics............................................................33
8.1 Scope ...........................................................................................................33
8.2 Essential requirements....................................................................................33
8.2.1 Multiplexing ........................................................................................33
8.2.2 Demultiplexing ....................................................................................34
8.3 Constraints and extensions .............................................................................34
8.3.1 Multicomponent programs ....................................................................34
9 Service and program specific information ..................................................................35
9.1 Introduction ...................................................................................................35
9.1.1 General requirements ..........................................................................35
9.1.2 General receiver requirements ..............................................................35
9.1.3 General broadcaster requirements ........................................................36
9.1.4 Notation .............................................................................................37
9.2 SI & PSI Specification .....................................................................................37
9.2.1 Summary............................................................................................37
9.2.2 Program association table ....................................................................38
9.2.3 Program map table ..............................................................................38
9.2.4 Conditional access table ......................................................................40
9.2.5 Network information table.....................................................................40
9.2.6 Bouquet association table ....................................................................42
9.2.7 Service description table ......................................................................42
9.2.8 Event information table ........................................................................45
9.2.9 Time and date table and time offset table...............................................47
9.2.10 Running status table ............................................................................48
9.2.11 Private data ........................................................................................48
9.3 Receiver functions..........................................................................................53
9.3.1 Information typically available to the user...............................................53
9.3.2 Service change ...................................................................................54
9.3.3 Parental control ...................................................................................56
9.3.4 Receiver behaviour when a service stops...............................................56
9.4 Establishing and maintaining the network connection .........................................57
9.4.1 Use of SI identifiers .............................................................................57
9.4.2 Auto installation ..................................................................................58
9.4.3 Network evolution ................................................................................60
9.4.4 Logical channel numbers (LCN) ............................................................62
9.4.5 Recommendation for robust SI acquisition .............................................66
9.5 User interface ................................................................................................68
9.5.1 Presentation of text .............................................................................68
– 4 – 62216-1 Ó IEC:2001(E)
9.5.2 Information presentation.......................................................................69
9.5.3 Service navigation ...............................................................................70
9.5.4 Display of time ....................................................................................71
9.6 Recording devices ..........................................................................................71
9.6.1 Programming ......................................................................................71
9.6.2 Execution of recording .........................................................................72
9.6.3 Control of analogue recorders...............................................................72
10 Subtitles ................................................................................................................73
10.1 Introduction ...................................................................................................73
10.2 Broadcast specifications .................................................................................73
10.2.1 DVB subtitles ......................................................................................73
10.2.2 Signalling ...........................................................................................73
10.2.3 Recommendation ................................................................................74
10.3 Receiver functions..........................................................................................74
10.3.1 Background ........................................................................................74
10.3.2 User control of receiver behaviour.........................................................74
11 VBI based services .................................................................................................75
11.1 Introduction ...................................................................................................75
11.2 Broadcast specifications .................................................................................75
11.3 Receiver functions..........................................................................................75
11.3.1 Processing capabilities ........................................................................75
11.3.2 Control ...............................................................................................75
11.4 Extended VBI format support ...........................................................................76
11.4.1 VPS ...................................................................................................76
11.4.2 WSS ..................................................................................................76
11.4.3 Teletext and teletext subtitles ...............................................................76
12 RF-part and channel decoder ...................................................................................76
12.1 General .........................................................................................................76
12.2 Frequencies and channel bandwidth.................................................................77
12.3 DVB-T modes ................................................................................................77
12.4 Tuning procedure ...........................................................................................77
12.5 Change of modulation parameters....................................................................77
12.6 Connector......................................................................................................77
12.7 Performance ..................................................................................................77
12.7.1 C/N performance .................................................................................78
12.7.2 Minimum receiver signal input levels .....................................................78
12.7.3 Maximum input level ............................................................................79
12.7.4 Resistanceto analogue and/or digital signals in other channels ................79
12.7.5 Resistance to co-channel interference from analogue TV signals..............79
12.7.6 Guard interval utilisation in single frequency networks.............................80
13 Conditional access and the common interface............................................................81
13.1 Introduction ...................................................................................................81
13.2 Minimum Requirements...................................................................................82
Annex A (normative) SI character set.............................................................................85
A.1 Set of languages supported .............................................................................85
A.2 Structure of character table .............................................................................85
Annex B (normative) DVB-SI PDC descriptor ..................................................................94
B.1 Introduction ...................................................................................................94
62216-1 Ó IEC:2001(E) – 5 –
B.2 PDC descriptor...............................................................................................94
Annex C (informative) Bootloader and software download ..................................................
C.1 Overview ..........................................................................................................
C.2 Signalling .........................................................................................................
C.3 User interface ...................................................................................................
Annex D (normative) Subtitling ......................................................................................96
D.1 Introduction ...................................................................................................96
D.2 Essential requirements....................................................................................96
D.3 Corrigenda to EN 300 743 ...............................................................................96
D.4 Clarifications to EN 300 743 ............................................................................97
D.5 Revised decoder model................................................................................. 103
D.6 UK specific features...................................................................................... 109
D.7 OSD Conflicts .............................................................................................. 110
D.8 System capabilities (informative).................................................................... 110
D.9 Encoding Guidelines (informative) .................................................................. 110
D.10 Decoder treatment of errors........................................................................... 111
Annex E (informative) An example of frequencies and offsets......................................... 113
E.1 UHF............................................................................................................ 113
E.2 VHF ............................................................................................................ 113
Annex F (informative) Noise model .............................................................................. 114
Annex G (informative) An example of C/N-performance with a practical transmitter .......... 115
Bibliography ............................................................................................................... 121
Figure 1 – Relationship between digital video and analogue video .....................................14
Figure 2 – Receiver and display format processing reference model ..................................20
Figure 3 – Uncertainty of positioning graphics over video..................................................26
Figure 4 – Illustration of control of audio level ..................................................................28
Figure 5 – Mapping of pan byte onto sound presentation ..................................................31
Figure 6 – The “cold-cut” approach illustrated ..................................................................32
Figure 7 – Generic single external decoder approach illustrated ........................................32
Figure 8 – Possible single external decoder approaches illustrated ....................................33
Figure 9 – Service regionalisation...................................................................................63
Figure D.1 – High level bitstream organisation .................................................................98
Figure D.2 – Region depth selection ............................................................................. 100
Figure D.3 – Mapping code strings to pixels in “requested” depth region........................... 101
Figure D.4 – Mapping code strings to pixels .................................................................. 102
Figure D.5 – Subtitle reference decoder model .............................................................. 104
Figure D.6 – The two modelled decoding phases ........................................................... 105
Figure D.7 – Detail of data decoding phase ................................................................... 106
Figure D.8 – Disruption to display at start of new epoch.................................................. 106
Figure F.1 – Tuner Noise Model ................................................................................... 114
Table 1 – Horizontal scaling where format is signalled by the sequence header alone..........16
Table 2 – Pan scan window ...........................................................................................16
Table 3 – Non “full screen” ............................................................................................17
Table 4 – Formats described by the active_format description ...........................................18
– 6 – 62216-1 Ó IEC:2001(E)
Table 5 – Processing by STB connected to 4:3 TV ...........................................................21
Table 6 – User options for displaying 16:9 on 4:3 .............................................................22
Table 7 – User options for displaying >16:9 on 4:3 ...........................................................22
Table 8 – Processing by STB connected to 16:9 TV .........................................................23
Table 9 – WSS codes for aspect ratio .............................................................................24
Table 10 – Values for other WSS bits..............................................................................24
Table 11 – Audio Description Descriptor..........................................................................28
Table 12 – Illustration of PES packet header ...................................................................30
Table 13 – Key to symbols.............................................................................................37
Table 14 – Summary of required tables ...........................................................................37
Table 15 – Program descriptors......................................................................................38
Table 16 – Elementary streams descriptors .....................................................................38
Table 17 – Network descriptors (first loop) ......................................................................41
Table 18 – Transport stream descriptors (second loop).....................................................42
Table 19 – Service descriptors .......................................................................................43
Table 20 – Event information descriptors.........................................................................45
Table 21 – Time Offset Table descriptors ........................................................................47
Table 22 – Private SI recognised by this specification.......................................................48
Table 23 – Syntax of the eacem stream identifier descriptor ..............................................48
Table 24 – Syntax of the logical channel descriptor ..........................................................49
Table 25 – Logical Channel Number ...............................................................................50
Table 26 – Syntax of the preferred name list descriptor ....................................................51
Table 27 – Syntax of the preferred name identifier descriptor ............................................52
Table 28 – Subtitle preference modes defined .................................................................54
Table 29 – Receiver Response to Missing SI Tables ........................................................67
Table 30 – Text Field Lengths ........................................................................................68
Table 31 – Subtitle preference modes defined .................................................................74
Table 32 – C/N (dB) for Reference BER .............................................................................
Table A.1 – Allowed character codes in SI text fields........................................................86
Table B.1 – Syntax of the PDC descriptor........................................................................94
Table C.1 – Example download information structure ..........................................................
Table D.1 – Corrigenda to EN 300 743............................................................................96
Table D.2 – Notes to Figure D-1 ................................................................................... 113
Table D.3 – Additional display update budget for page/region operations.......................... 107
Table D.4 – End of display set segment syntax .............................................................. 109
Table D.5 – Example subtitle system performance ......................................................... 110
Table G.1 – C/N (dB) for Reference BER ...................................................................... 115
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