IEC 61883-7:2003
(Main)Consumer audio/video equipment - Digital interface - Part 7: Transmission of ITU-R BO.1294 System B
Consumer audio/video equipment - Digital interface - Part 7: Transmission of ITU-R BO.1294 System B
IEC 61883-7:2003 defines packetization and transmission for transport streams of ITU-R BO.1294 system B (DirecTV system/DSS) over the IEEE 1394 Serial Bus. This bilingual version (2012-08) corresponds to the monolingual English version, published in 2003-01.
Matériel audio/vidéo grand public - Interface numérique - Partie 7: Transmission du Système B de l'UIT-R BO.1294
La CEI 61883-7:2003 définit la mise en paquets et la transmission des flux de transport du Système B de l'UIT-R BO.1294 (Système DirecTV/DSS) sur le bus série IEEE 1394. La présente version bilingue (2012-08) correspond à la version anglaise monolingue publiée en 2003-01.
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INTERNATIONAL IEC
STANDARD
61883-7
First edition
2003-01
Consumer audio/video equipment –
Digital interface –
Part 7:
Transmission of ITU-R BO.1294 System B
Matériel audio/vidéo grand public –
Interface numérique –
Partie 7:
Transmission du Système B de l’UIT-R BO.1294
Reference number
IEC 61883-1:2003(E)
Publication numbering
As from 1 January 1997 all IEC publications are issued with a designation in the
60000 series. For example, IEC 34-1 is now referred to as IEC 60034-1.
Consolidated editions
The IEC is now publishing consolidated versions of its publications. For example,
edition numbers 1.0, 1.1 and 1.2 refer, respectively, to the base publication, the
base publication incorporating amendment 1 and the base publication incorporating
amendments 1 and 2.
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INTERNATIONAL IEC
STANDARD
61883-7
First edition
2003-01
Consumer audio/video equipment –
Digital interface –
Part 7:
Transmission of ITU-R BO.1294 System B
Matériel audio/vidéo grand public –
Interface numérique –
Partie 7:
Transmission du Système B de l’UIT-R BO.1294
IEC 2003 Copyright - 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.
International Electrotechnical Commission, 3, rue de Varembé, PO Box 131, CH-1211 Geneva 20, Switzerland
Telephone: +41 22 919 02 11 Telefax: +41 22 919 03 00 E-mail: inmail@iec.ch Web: www.iec.ch
PRICE CODE
Commission Electrotechnique Internationale
N
International Electrotechnical Commission
Международная Электротехническая Комиссия
For price, see current catalogue
– 2 – 61883-7 IEC:2003(E)
CONTENTS
FOREWORD . 3
1 Scope . 5
2 Normative references. 5
3 Terms, definitions and abbreviations. 5
3.1 Terms and definitions . 5
3.2 Abbreviations. 6
4 DSS transport stream . 6
5 Construction of an IEEE 1394 packet. 8
5.1 Source packets. 8
5.2 Isochronous packets.10
6 Transmission of isochronous packets.11
6.1 Late packets .11
Annex A (normative) Buffer size for DSS transmission .12
Figure 1 – Steps in the transmission of transport stream . 7
Figure 2 – DSS stream processing block diagram . 7
Figure 3 – Structure of a source packet. 8
Figure 4 – DSS packet header structure. 8
Figure 5 – Structure of the source packet header . 9
Figure 6 – FDF structure .11
Table 1 – Fields in the DSS packet header. 9
Table 2 – Fields in the CIP header .10
Table A.1 – Buffer for jitter example .13
Table A.2 – Buffer for MPEG smoothing example.13
61883-7 IEC:2003(E) – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
CONSUMER AUDIO/VIDEO EQUIPMENT –
DIGITAL INTERFACE –
Part 7: Transmission of ITU-R BO.1294 System B
FOREWORD
1) The IEC (International Electrotechnical Commission) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of the IEC is to promote
international co-operation on all questions concerning standardization in the electrical and electronic fields. To
this end and in addition to other activities, the IEC publishes International Standards. Their preparation is
entrusted to technical committees; any IEC National Committee interested in the subject dealt with may
participate in this preparatory work. International, governmental and non-governmental organizations liaising
with the IEC also participate in this preparation. The IEC collaborates closely with the International
Organization for Standardization (ISO) in accordance with conditions determined by agreement between the
two organizations.
2) The formal decisions or agreements of the IEC on technical matters express, as nearly as possible, an
international consensus of opinion on the relevant subjects since each technical committee has representation
from all interested National Committees.
3) The documents produced have the form of recommendations for international use and are published in the form
of standards, technical specifications, technical reports or guides and they are accepted by the National
Committees in that sense.
4) In order to promote international unification, IEC National Committees undertake to apply IEC International
Standards transparently to the maximum extent possible in their national and regional standards. Any
divergence between the IEC Standard and the corresponding national or regional standard shall be clearly
indicated in the latter.
5) The IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any
equipment declared to be in conformity with one of its standards.
6) Attention is drawn to the possibility that some of the elements of this International Standard may be the subject
of patent rights. The IEC shall not be held responsible for identifying any or all such patent rights.
IEC 61883-7 has been prepared by technical area 4, Digital system interfaces, of IEC
technical committee 100: Audio, video and multimedia systems and equipment.
The text of this standard is based on the following documents:
FDIS Report on voting
100/558/FDIS 100/610/RVD
Full information on the voting for the approval of this standard can be found in the report on
voting indicated in the above table.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
International Standard IEC 61883 consists of the following parts under the general title
Consumer audio/video equipment – Digital interface:
Part 1: General
Part 2: SD-DVCR data transmission
Part 3: HD-DVCR data transmission
Part 4: MPEG2-TS data transmission
Part 5: SDL-DVCR data transmission
Part 6: Audio and music data transmission protocol
Part 7: Transmission of ITU-R BO.1294 System B
– 4 – 61883-7 IEC:2003(E)
The committee has decided that the contents of this publication will remain unchanged until
2004. At this date, the publication will be
• reconfirmed;
• withdrawn;
• replaced by a revised edition, or
• amended.
61883-7 IEC:2003(E) – 5 –
CONSUMER AUDIO/VIDEO EQUIPMENT –
DIGITAL INTERFACE –
Part 7: Transmission of ITU-R BO.1294 System B
1 Scope
This specification defines packetization and transmission for transport streams of ITU-R BO.1294
system B (DirecTV system/DSS) over the IEEE 1394 Serial Bus.
2 Normative references
The following referenced documents are indispensable for the application of this document.
For dated references, only the edition cited applies. For undated references, the latest edition
of the referenced document (including any amendments) applies.
IEC 61883-1, Consumer audio/video equipment – Digital interface – Part 1: General
ITU-R BO.1294:1997, Common functional requirements for the reception of digital multi-
programme television emissions by satellites operating in the 11/12 GHz frequency range
IEEE 1394:1995, Standard for a High Performance Serial Bus
IEEE 1394a:2000, Standard for a High Performance Serial Bus – Amendment 1
3 Terms, definitions and abbreviations
For the purposes of this part of IEC 61883, the following terms and definitions apply.
3.1 Terms and definitions
For the purposes of this part of IEC 61883, the following terms and definitions apply.
3.1.1
byte
eight bits of data, used as a synonym for octet
NOTE The symbol for byte is B.
3.1.2
CSR architecture
convenient abbreviation of the following reference: ISO/IEC 13213:1994, Information
technology – Microprocessor systems – Control and status register (CSR) architecture for
microcomputer buses
3.1.3
quadlet
four bytes of data
———————
In this document, the name “DSS” is used instead of ITU-R BO.1294 system B.
– 6 – 61883-7 IEC:2003(E)
3.2 Abbreviations
For the purpose of this part of IEC 61883, the following abbreviations used in IEEE 1394
apply:
AV/C Audio Video Control
CIP Common Isochronous Packet
CTR Cycle Time Register
HD High Definition
IEEE The Institute of Electrical and Electronics Engineers, Inc.
MPEG Motion Picture Expert Group
TSP Transport Stream Package
4 DSS transport stream
A DSS transport stream consists of transport stream packets with a length of 130 B.
NOTE Refer to Annex 1 of ITU-R BO.1294: 1997 for more information.
A stream may contain several programs. In Figure 1, an example is given of a transport
stream, which consists of several programs. Often, only one or a few programs need to be
transmitted. If a program selection is carried out, then only those transport stream packets
from that particular transport stream are transmitted. In this situation, the occupied bandwidth
on the IEEE 1394 interface can be reduced. Reduction of the bit rate is carried in a smoothing
buffer. As a result of the smoothing operation, the transport stream packets will be shifted in
time.
The transport stream packets at the output of the smoothing buffer are transmitted over the
IEEE 1394 interface. During transmission, this interface will introduce some jitter on
the arrival time of the transport stream packets in the receiver.
In the DSS transport stream, there are strong requirements on the timing of the transport
stream packets. The jitter introduced by the both the smoothing buffer and the transmitter of
the interface has to be compensated. This is done by adding a time stamp to the transport
stream packets:
– at the moment it arrives at the input of the smoothing buffer; or
– at the input of the digital interface, if smoothing is not applied.
The receiver of the interface contains a receiver buffer, which compensates for the introduced
jitter.
61883-7 IEC:2003(E) – 7 –
A B C A A B C D A D B
a)
DSS packet
A A A A
b)
Source packet
c)
d)
e)
f)
Overall delay (offset in timestamp)
IEC 3100/02
a) Complete transport stream with multiplex of programs (A,B,C,D)
b) Transport stream of the selected program A with DSS packet header (=DSS source packets)
c) Source packets with source packet header
d) Source packets at the output of the smoothing buffer
e) Source packets at the input of the 1394 receiver
f) Reconstructed timing for the transport stream
NOTE The clock frequency for transferring the bytes of a transport stream packet may be different
in every situation
Figure 1 – Steps in the transmission of transport stream
Figure 2 shows how the DSS stream is processed between the original multiplex signal, the
IEEE 1394 interface and the decoder.
DSS and Smoothing
source buffer evens Arbitrate for Re-
Original packet the interval bus and construction
multiplex headers between transmit of original
signal added packets data timing
Timing
Smoothing Receiving recovery
Demux Add headers Transmitter 1394 T-STD
buffer buffer (de-
smoother)
a) c) d) e) f)
IEC 3101/02
Figure 2 – DSS stream processing block diagram
– 8 – 61883-7 IEC:2003(E)
5 Construction of an IEEE 1394 packet
5.1 Source packets
5.1.1 Structure of a source packet
The length of the source packet is 140 B as shown in Figure 3. The source packet consists of
one DSS transport stream packet with a length of 130 B and a DSS packet header of 10 B.
The source packet header is additionally added before transmission to the smoothing buff
...
IEC 61883-7 ®
Edition 1.0 2003-01
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Consumer audio/video equipment – Digital interface –
Part 7: Transmission of ITU-R BO.1294 System B
Matériel audio/vidéo grand public – Interface numérique –
Partie 7: Transmission du Système B de l'UIT-R BO.1294
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IEC 61883-7 ®
Edition 1.0 2003-01
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Consumer audio/video equipment – Digital interface –
Part 7: Transmission of ITU-R BO.1294 System B
Matériel audio/vidéo grand public – Interface numérique –
Partie 7: Transmission du Système B de l'UIT-R BO.1294
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
N
CODE PRIX
ICS 33.160.01; 35.200 ISBN 978-2-83220-236-4
– 2 – 61883-7 IEC:2003
CONTENTS
FOREWORD . 3
1 Scope . 5
2 Normative references . 5
3 Terms, definitions and abbreviations . 5
3.1 Terms and definitions . 5
3.2 Abbreviations . 6
4 DSS transport stream . 6
5 Construction of an IEEE 1394 packet . 8
5.1 Source packets . 8
5.2 Isochronous packets . 10
6 Transmission of isochronous packets . 11
6.1 Late packets . 11
Annex A (normative) Buffer size for DSS transmission . 12
Figure 1 – Steps in the transmission of transport stream . 7
Figure 2 – DSS stream processing block diagram . 7
Figure 3 – Structure of a source packet . 8
Figure 4 – DSS packet header structure . 8
Figure 5 – Structure of the source packet header . 9
Figure 6 – FDF structure . 11
Table 1 – Fields in the DSS packet header . 9
Table 2 – Fields in the CIP header . 10
Table A.1 – Buffer for jitter example . 13
Table A.2 – Buffer for MPEG smoothing example. 13
61883-7 IEC:2003 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
CONSUMER AUDIO/VIDEO EQUIPMENT –
DIGITAL INTERFACE –
Part 7: Transmission of ITU-R BO.1294 System B
FOREWORD
1) The IEC (International Electrotechnical Commission) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of the IEC is to promote
international co-operation on all questions concerning standardization in the electrical and electronic fields. To
this end and in addition to other activities, the IEC publishes International Standards. Their preparation is
entrusted to technical committees; any IEC National Committee interested in the subject dealt with may
participate in this preparatory work. International, governmental and non-governmental organizations liaising
with the IEC also participate in this preparation. The IEC collaborates closely with the International
Organization for Standardization (ISO) in accordance with conditions determined by agreement between the
two organizations.
2) The formal decisions or agreements of the IEC on technical matters express, as nearly as possible, an
international consensus of opinion on the relevant subjects since each technical committee has representation
from all interested National Committees.
3) The documents produced have the form of recommendations for international use and are published in the form
of standards, technical specifications, technical reports or guides and they are accepted by the National
Committees in that sense.
4) In order to promote international unification, IEC National Committees undertake to apply IEC International
Standards transparently to the maximum extent possible in their national and regional standards. Any
divergence between the IEC Standard and the corresponding national or regional standard shall be clearly
indicated in the latter.
5) The IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any
equipment declared to be in conformity with one of its standards.
6) Attention is drawn to the possibility that some of the elements of this International Standard may be the subject
of patent rights. The IEC shall not be held responsible for identifying any or all such patent rights.
IEC 61883-7 has been prepared by technical area 4, Digital system interfaces, of IEC
technical committee 100: Audio, video and multimedia systems and equipment.
This bilingual version (2012-08) corresponds to the monolingual English version, published in
2003-01.
The text of this standard is based on the following documents:
FDIS Report on voting
100/558/FDIS 100/610/RVD
Full information on the voting for the approval of this standard can be found in the report on
voting indicated in the above table.
The French version of this standard has not been voted upon.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
International Standard IEC 61883 consists of the following parts under the general title
Consumer audio/video equipment – Digital interface:
Part 1: General
Part 2: SD-DVCR data transmission
Part 3: HD-DVCR data transmission
Part 4: MPEG2-TS data transmission
– 4 – 61883-7 IEC:2003
Part 5: SDL-DVCR data transmission
Part 6: Audio and music data transmission protocol
Part 7: Transmission of ITU-R BO.1294 System B
The committee has decided that the contents of this publication will remain unchanged until
2004. At this date, the publication will be
• reconfirmed;
• withdrawn;
• replaced by a revised edition, or
• amended.
61883-7 IEC:2003 – 5 –
CONSUMER AUDIO/VIDEO EQUIPMENT –
DIGITAL INTERFACE –
Part 7: Transmission of ITU-R BO.1294 System B
1 Scope
This specification defines packetization and transmission for transport streams of ITU-R
BO.1294 system B (DirecTV system/DSS) over the IEEE 1394 Serial Bus.
2 Normative references
The following referenced documents are indispensable for the application of this document.
For dated references, only the edition cited applies. For undated references, the latest edition
of the referenced document (including any amendments) applies.
IEC 61883-1, Consumer audio/video equipment – Digital interface – Part 1: General
ITU-R BO.1294:1997, Common functional requirements for the reception of digital multi-
programme television emissions by satellites operating in the 11/12 GHz frequency range
IEEE 1394:1995, Standard for a High Performance Serial Bus
IEEE 1394a:2000, Standard for a High Performance Serial Bus – Amendment 1
3 Terms, definitions and abbreviations
For the purposes of this part of IEC 61883, the following terms and definitions apply.
3.1 Terms and definitions
For the purposes of this part of IEC 61883, the following terms and definitions apply.
3.1.1
byte
eight bits of data, used as a synonym for octet
NOTE The symbol for byte is B.
3.1.2
CSR architecture
convenient abbreviation of the following reference: ISO/IEC 13213:1994, Information
technology – Microprocessor systems – Control and status register (CSR) architecture for
microcomputer buses
3.1.3
quadlet
four bytes of data
———————
In this document, the name “DSS” is used instead of ITU-R BO.1294 system B.
– 6 – 61883-7 IEC:2003
3.2 Abbreviations
For the purpose of this part of IEC 61883, the following abbreviations used in IEEE 1394
apply:
AV/C Audio Video Control
CIP Common Isochronous Packet
CTR Cycle Time Register
HD High Definition
IEEE The Institute of Electrical and Electronics Engineers, Inc.
MPEG Motion Picture Expert Group
TSP Transport Stream Package
4 DSS transport stream
A DSS transport stream consists of transport stream packets with a length of 130 B.
NOTE Refer to Annex 1 of ITU-R BO.1294: 1997 for more information.
A stream may contain several programs. In Figure 1, an example is given of a transport
stream, which consists of several programs. Often, only one or a few programs need to be
transmitted. If a program selection is carried out, then only those
...
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