Helical-scan compressed digital video cassette system using 6,35 mm magnetic tape - Format D-7 -- Part 2: Compression format

This part of IEC 62071 defines the DV-based data structure for the interface of digital audio, subcode data and compressed video with the following parameters: 525/60 system - 4:1:1 image sampling structure, 25 Mb/s data rate; 525/60 system - 4:2:2 image sampling structure, 50 Mb/s data rate; 625/50 system - 4:1:1 image sampling structure, 25 Mb/s data rate; 625/50 system - 4:2:2 image sampling structure, 50 Mb/s data rate. This standard does not define the DV compliant data structure for interface, of digital audio, subcode data and compressed video with the following parameters: 625/50 system - 4:2:0 image sampling structure, 25 Mb/s data rate The compression algorithm and the DIF structure conform to the DV data structure as defined in IEC 61834. Differences between the DV-based data structure defined in this standard and IEC 61834 are shown in Annex A.

Videokassettensystem mit komprimierter digitaler Schrägspuraufzeichnung auf Magnetband 6,35 mm - Format D-7 -- Teil 2: Kompressionsformat

Système de magnétoscope numérique à cassette à balayage hélicoïdal à signal compressé utilisant une bande magnétique de 6,35 mm - Format D-7 -- Partie 2: Format de compression

La CEI 62071-2:2005 définit la structure de données sur base DV pour l'interface des données audionumériques, de sous-code, et vidéo comprimées avec les paramètres suivants: - système 525/60 - structure d'échantillonnage de l'image 4:1:1, débit de données 25 Mb/s; - système 525/60 - structure d'échantillonnage de l'image 4:2:2, débit de données 50 Mb/s; - système 625/50 - structure d'échantillonnage de l'image 4:1:1, débit de données 25 Mb/s; - système 625/50 - structure d'échantillonnage de l'image 4:2:2, débit de données 50 Mb/s. La présente version bilingue (2013-07) correspond à la version anglaise monolingue publiée en 2005-10.

Digitalni videokasetni snemalni sistem z zapisovanjem s poševnimi sledmi na magnetnem traku, širokem 6,35 mm, in komprimiranjem – Format D-7 – 2. del: Kompresijski format (IEC 62071-2:2005)

General Information

Status
Published
Publication Date
31-Dec-2006
Withdrawal Date
31-Dec-2006
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
01-Jan-2007
Due Date
01-Jan-2007
Completion Date
01-Jan-2007

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SLOVENSKI STANDARD
SIST EN 62071-2:2007
01-januar-2007
Digitalni videokasetni snemalni sistem z zapisovanjem s poševnimi sledmi na
magnetnem traku, širokem 6,35 mm, in komprimiranjem – Format D-7 – 2. del:
Kompresijski format (IEC 62071-2:2005)

Helical-scan compressed digital video cassette system using 6,35 mm magnetic tape -

Format D-7 -- Part 2: Compression format (IEC 62071-2:2005)
Videokassettensystem mit komprimierter digitaler Schrägspuraufzeichnung auf
Magnetband 6,35 mm - Format D-7 -- Teil 2: Kompressionsformat (IEC 62071-2:2005)
Systeme de magnétoscope numérique a cassette a balayage hélicoidal a signal

compressé utilisant une bande magnétique de 6,35 mm - Format D-7 -- Partie 2: Format

de compression (IEC 62071-2:2005)
Ta slovenski standard je istoveten z: EN 62071-2:2006
ICS:
33.160.40 Video sistemi Video systems
SIST EN 62071-2:2007 en,de

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
SIST EN 62071-2:2007
---------------------- Page: 2 ----------------------
SIST EN 62071-2:2007
EUROPEAN STANDARD
EN 62071-2
NORME EUROPÉENNE
July 2006
EUROPÄISCHE NORM
ICS 33.160.40
English version
Helical-scan compressed digital video cassette system
using 6,35 mm magnetic tape -
Format D-7
Part 2: Compression format
(IEC 62071-2:2005)
Système de magnétoscope numérique à Videokassettensystem mit komprimierter
cassette à balayage hélicoïdal à digitaler Schrägspuraufzeichnung auf
signal compressé utilisant une bande Magnetband 6,35 mm -
magnétique de 6,35 mm - Format D-7
Format D-7 Teil 2: Kompressionsformat
Partie 2: Format de compression (IEC 62071-2:2005)
(CEI 62071-2:2005)

This European Standard was approved by CENELEC on 2006-06-01. CENELEC members are bound to comply

with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard

the status of a national standard without any alteration.

Up-to-date lists and bibliographical references concerning such national standards may be obtained on

application to the Central Secretariat or to any CENELEC member.

This European Standard exists in two official versions (English and German). A version in any other language

made by translation under the responsibility of a CENELEC member into its own language and notified to the

Central Secretariat has the same status as the official versions.

CENELEC members are the national electrotechnical committees of Austria, Belgium, Cyprus, the Czech

Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,

Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain,

Sweden, Switzerland and the United Kingdom.
CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
Central Secretariat: rue de Stassart 35, B - 1050 Brussels

© 2006 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.

Ref. No. EN 62071-2:2006 E
---------------------- Page: 3 ----------------------
SIST EN 62071-2:2007
EN 62071-2:2006 - 2 -
Foreword

The text of the International Standard IEC 62071-2:2005, prepared by IEC TC 100, Audio, video and

multimedia systems and equipment, was submitted to the formal vote and was approved by CENELEC as

EN 62071-2 on 2006-06-01 without any modification.
The following dates were fixed:
– latest date by which the EN has to be implemented
at national level by publication of an identical
national standard or by endorsement (dop) 2007-06-01
– latest date by which the national standards conflicting
with the EN have to be withdrawn (dow) 2009-06-01
__________
Endorsement notice

The text of the International Standard IEC 62071-2:2005 was approved by CENELEC as a European

Standard without any modification.

In the official version, for Bibliography, the following notes have to be added for the standards indicated:

IEC 61834-2 NOTE Harmonized as EN 61834-2:1998 (not modified).
IEC 61833-2 NOTE Harmonized as EN 61833-2:2005 (not modified).
__________
---------------------- Page: 4 ----------------------
SIST EN 62071-2:2007
- 3 - EN 62071-2:2006
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications

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.

NOTE When an international publication has been modified by common modifications, indicated by (mod), the relevant EN/HD

applies.
Publication Year Title EN/HD Year
ITU-R BT.601-5 1995 Studio encoding parameters of digital - -
television for standard 4:3 and wide-screen
16:9 aspect ratios
AES3 2003 AES Recommended practice for digital audio - -
engineering - Serial transmisson format for
two-channel linearly represented digital audio
data
SMPTE 12M 1999 Television, audio and film - Time and control - -
code
---------------------- Page: 5 ----------------------
SIST EN 62071-2:2007
---------------------- Page: 6 ----------------------
SIST EN 62071-2:2007
INTERNATIONAL IEC
STANDARD 62071-2
First edition
2005-10
Helical-scan compressed digital video
cassette system using 6,35 mm
magnetic tape – Format D-7 –
Part 2:
Compression format
 IEC 2005  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 XB
International Electrotechnical Commission
МеждународнаяЭлектротехническаяКомиссия
For price, see current catalogue
---------------------- Page: 7 ----------------------
SIST EN 62071-2:2007
– 2 – 62071-2  IEC:2005(E)
CONTENTS

FOREWORD...........................................................................................................................5

1 Scope...............................................................................................................................7

2 Normative references........................................................................................................7

3 Abbreviations and acronyms .............................................................................................7

4 Interface ...........................................................................................................................8

4.1 Introduction .............................................................................................................8

4.2 Data structure..........................................................................................................9

4.3 Header section ......................................................................................................12

4.4 Subcode section ....................................................................................................15

4.5 VAUX section ........................................................................................................20

4.6 Audio section.........................................................................................................24

4.7 Video section.........................................................................................................30

5 Video compression .........................................................................................................32

5.1 Video structure ......................................................................................................32

5.2 DCT processing.....................................................................................................48

5.3 Quantization ..........................................................................................................51

5.4 Variable length coding (VLC) .................................................................................53

5.5 The arrangement of a compressed macro block .....................................................56

5.6 The arrangement of a video segment .....................................................................59

Annex A (informative) Differences between IEC 61834 and IEC 62071-2...............................64

Annex B (normative) Digital filter for sampling-rate conversion from 4:2:2 to 4:1:1

colour difference signals .......................................................................................................65

Annex C (informative) Block diagram of D-7 recorder ...........................................................66

Bibliography ..........................................................................................................................67

Figure 1 – Block diagram on the digital interface......................................................................8

Figure 2 – Data structure of one video frame for 50 Mb/s structure ........................................10

Figure 3 – Data structure of one video frame for 25 Mb/s structure ........................................10

Figure 4 – Data structure of a DIF sequence..........................................................................11

Figure 5 – Data in the subcode section..................................................................................16

Figure 6 – Pack in SSYB .......................................................................................................17

Figure 7 – Data in the VAUX section......................................................................................21

Figure 8 – Data in the audio section ......................................................................................24

Figure 9 – conversion of audio sample to audio data bytes ....................................................26

Figure 10 – Arrangement of AAUX packs in audio auxiliary data ............................................26

Figure 11 – Transmitting samples of 525/60 system for 4:2:2 compression ............................34

Figure 12 – Transmitting samples of 625/50 system for 4:2:2 compression ............................35

Figure 13 – Transmitting samples of 525/60 system for 4:1:1 compression ............................36

Figure 14 – Transmitting samples of 625/50 system for 4:1:1 compression ............................37

Figure 15 – DCT block and the pixel coordinates ...................................................................38

---------------------- Page: 8 ----------------------
SIST EN 62071-2:2007
62071-2  IEC:2005(E) – 3 –

Figure 16 – The rightmost DCT block in colour difference signal for 4:1:1 compression

mode ....................................................................................................................................38

Figure 17 – DCT block arrangement for 4:2:2 compression....................................................39

Figure 18 – DCT block arrangement for 4:1:1 compression....................................................40

Figure 19 – Macro block and DCT blocks for 4:2:2 compression ............................................40

Figure 20 – Macro block and DCT blocks for 4:1:1 compression ............................................40

Figure 21 – Super blocks and macro blocks in one TV frame for 525/60 system for

4:2:2 compression.................................................................................................................42

Figure 22 – Super blocks and macro blocks in one TV frame for 525/60 system for

4:1:1 compression.................................................................................................................43

Figure 23 – Super blocks and macro blocks in one TV frame for 625/50 system for

4:2:2 compression.................................................................................................................44

Figure 24 – Super blocks and macro blocks in one TV frame for 625/50 system for

4:1:1 compression.................................................................................................................45

Figure 25 – Macro block order in a super block for 4:2:2 compression ...................................47

Figure 26 – Macro block order in a super block for 4:1:1 compression ...................................47

Figure 27 – The output order of a weighted DCT block ..........................................................50

Figure 28 – Area numbers .....................................................................................................52

Figure 29 – Arrangement of a compressed macro block for 4:2:2 compression ......................56

Figure 30 – The arrangement of a compressed macro block for 4:1:1 compression................57

Figure 31 – The arrangement of a video segment after the bit rate reduction for 4:2:2

compression .........................................................................................................................62

Figure 32 – The arrangement of a video segment after the bit rate reduction for 4:1:1

compression .........................................................................................................................63

Figure 33 – The video error code...........................................................................................63

Figure B.1 – Template for insertion loss frequency characteristics .........................................65

Figure B.2 – Passband ripple tolerance .................................................................................65

Figure C.1 – Block diagram of D-7 recorder...........................................................................66

Table 1 – ID data of a DIF block ............................................................................................12

Table 2 – Section type...........................................................................................................13

Table 3 – DIF sequence number (525/60 system) ..................................................................13

Table 4 – DIF sequence number (625/50 system) ..................................................................14

Table 5 – DIF block number ..................................................................................................14

Table 6 – Data (payload) in the Header DIF block..................................................................15

Table 7 – SSYB ID ................................................................................................................17

Table 8 – Pack header table..................................................................................................18

Table 9 – Mapping of packet in SSYB data ............................................................................18

Table 10 – Mapping of time code pack ..................................................................................19

Table 11 – Mapping of binary group pack ..............................................................................20

Table 12 – Mapping of VAUX pack in a DIF sequence ...........................................................21

Table 13 – Mapping of VAUX source pack .............................................................................21

Table 14 – Mapping of VAUX source control pack..................................................................23

Table 15 – Maping of AAUX pack in a DIF sequence .............................................................26

Table 16 – Mapping of AAUX Source pack ............................................................................27

---------------------- Page: 9 ----------------------
SIST EN 62071-2:2007
– 4 – 62071-2  IEC:2005(E)

Table 17 – Mapping of AAUX Source Control pack ................................................................28

Table 18 – Video DIF blocks and compressed macro blocks for 50 Mb/s structure –

4:2:2 compression.................................................................................................................31

Table 19 – Video DIF blocks and compressed macro block for 25 Mb/s structure – 4:1:1

compression .........................................................................................................................32

Table 20 – Construction of video signal sampling (4:2:2) .......................................................33

Table 21 – Class number and the DCT block .........................................................................51

Table 22 – An example of the Classification for reference......................................................51

Table 23 – Quantization step.................................................................................................53

Table 24 – Length of codewords............................................................................................54

Table 25 – Codewords for variable length coding...................................................................55

Table 26 – Definition of STA..................................................................................................57

Table 27 – Codewords of the QNO ........................................................................................58

Table A.1 – Abstract of differences between IEC 61834 and IEC 62071-2...............................64

---------------------- Page: 10 ----------------------
SIST EN 62071-2:2007
62071-2  IEC:2005(E) – 5 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
HELICAL-SCAN COMPRESSED DIGITAL VIDEO CASSETTE SYSTEM
USING 6,35 mm MAGNETIC TAPE – FORMAT D-7 –
Part 2: Compression format
FOREWORD

1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising

all national electrotechnical committees (IEC National Committees). The object of 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, IEC publishes International Standards, Technical Specifications,

Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC

Publication(s)”). 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. 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 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 IEC National Committees.

3) IEC Publications have the form of recommendations for international use and are accepted by IEC National

Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC

Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any

misinterpretation by any end user.

4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications

transparently to the maximum extent possible in their national and regional publications. Any divergence

between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in

the latter.

5) IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any

equipment declared to be in conformity with an IEC Publication.

6) All users should ensure that they have the latest edition of this publication.

7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and

members of its technical committees and IEC National Committees for any personal injury, property damage or

other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and

expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC

Publications.

8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is

indispensable for the correct application of this publication.

9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of

patent rights. IEC shall not be held responsible for identifying any or all such patent rights.

International Standard IEC 62071-2 has been prepared by technical area 6: Higher data rate

storage media, data structures and equipment of IEC technical committee 100: Audio, video

and multimedia systems and equipment.
The text of this standard is based on the following documents:
CDV Report on voting
100/901/CDV 100/985/RVC

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.

---------------------- Page: 11 ----------------------
SIST EN 62071-2:2007
– 6 – 62071-2  IEC:2005(E)

IEC 62071 consists of the following parts, under the general title Helical-scan compressed

digital video cassette system using 6,35 mm magnetic tape – Format D-7:
Part 1: VTR specifications
Part 2: Compression format
Part 3: Data stream format

This part 2 describes the specifications for encoding process and data format for 525i and 625i

systems.

Part 1 describes the VTR specifications which are tape, magnetization, helical recording,

modulation method and basic system data for video compressed data.

Part 3 describes the specifications for transmission of DV-based compressed video and audio

data stream over 270Mb/s and 360 Mb/s serial digital interface.

The committee has decided that the contents of this publication will remain unchanged until the

maintenance result date indicated on the IEC web site under "http://webstore.iec.ch" in the data

related to the specific publication. At this date, the publication will be
• reconfirmed;
• withdrawn;
• replaced by a revised edition, or
• amended.
A bilingual version of this publication may be issued at a later date.
---------------------- Page: 12 ----------------------
SIST EN 62071-2:2007
62071-2  IEC:2005(E) – 7 –
HELICAL-SCAN COMPRESSED DIGITAL VIDEO CASSETTE SYSTEM
USING 6,35 mm MAGNETIC TAPE – FORMAT D-7 –
Part 2:Compression format
1 Scope

This part of IEC 62071 defines the DV-based data structure for the interface of digital audio,

subcode data and compressed video with the following parameters:
525/60 system – 4:1:1 image sampling structure, 25 Mb/s data rate;
525/60 system – 4:2:2 image sampling structure, 50 Mb/s data rate;
625/50 system – 4:1:1 image sampling structure, 25 Mb/s data rate;
625/50 system – 4:2:2 image sampling structure, 50 Mb/s data rate.

This standard does not define the DV compliant data structure for interface, of digital audio,

subcode data and compressed video with the following parameters:
625/50 system – 4:2:0 image sampling structure, 25 Mb/s data rate

The compression algorithm and the DIF structure conform to the DV data structure as defined

in IEC 61834. Differences between the DV-based data structure defined in this standard and

IEC 61834 are shown in Annex A.
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.

ITU-R BT.601-5: 1995, Studio encoding parameters of digital television for standard 4:3 and

wide-screen 16:9 aspect ratios

AES3-2003: Serial transmission format for two-channel linearly represented digital audio data

SMPTE 12M: 1999, Television, Audio and Film – Time and Control Code
3 Abbreviations and acronyms
AAUX Audio auxiliary data
AP1 Audio application ID
AP2 Video application ID
AP3 Subcode application ID
APT Track application ID
Arb Arbitrary
AS AAUX source pack
ASC AAUX source control pack
B/W Black and white flag
CGMS Copy generation management system
---------------------- Page: 13 ----------------------
SIST EN 62071-2:2007
– 8 – 62071-2  IEC:2005(E)
CM Compressed macro block
DBN DIF block number
DCT Discrete cosine transform
DIF Digital interface
DRF Direction flag
Dseq DIF sequence number
DSF DIF sequence flag
DV Identification of a compression family
EFC Emphasis audio channel flag
EOB End of block
FR Identification for the first half or the second half of each channel
FSC Identification of a DIF block in each channel
LF Locked mode flag
QNO Quantization number
QU Quantization
Res Reserved for future use
SCT Section type
SMP Sampling frequency
SSYB Subcode sync block
STA Status of the compressed macro block
STYPE (see Note) Signal type
Syb Subcode sync block number
TF Transmitting flag
VAUX Video auxiliary data
VLC Variable length coding
VS VAUX source pack
VSC VAUX source control pack
NOTE STYPE as used in this standard is different from that in ANSI/IEEE 1394.
4 Interface
4.1 General

As shown in Figure 1, processed audio, video and subcode data, are output for different

applications through a digital interface port.
Audio, video and Digital
Audio in
Video in
Digital interface
subcode interface
Subcode in
processing formatting
IEC 1905/05
Figure 1 – Block diagram on the digital interface
---------------------- Page: 14 ----------------------
SIST EN 62071-2:2007
62071-2  IEC:2005(E) – 9 –
4.2 Data structure

The data structure of the compressed stream at the digital interface is shown in Figures 2 and

3. Figure 2 shows the data structure for a 50 Mb/s structure, and Figure 3 shows the data

structure for a 25 Mb/s structure.

In the 50 Mb/s structure, the data of one video frame are divided into two channels. Each

channel is divided into 10 DIF sequences for the 525/60 system and 12 DIF sequences for the

625/50 system.

In the 25 Mb/s structure, the data of one video frame are divided into 10 DIF sequences for the

525/60 system and 12 DIF sequences for the 625/50 system.

Each DIF sequence consists of a header section, subcode section, VAUX section, audio

section and video section with the following DIF blocks respectively:
Header section : 1 DIF block,
Subcode section : 2 DIF blocks,
VAUX section : 3 DIF blocks,
Audio section : 9 DIF blocks,
Video section :135 DIF blocks.

As shown in Figures 2 and 3, each DIF block consists of a 3-byte ID and 77 bytes of data. DIF

data bytes are numbered 0 to 79.

Figure 4 shows the data structure of a DIF sequence for a 50 Mb/s or 25 Mb/s structure.

---------------------- Page: 15 ----------------------
SIST EN 62071-2:2007
– 10 – 62071-2  IEC:2005(E)
DDDaaata ita ita innn one vi one vi one video framdeo framdeo frameee

FFFiiirst channelrst channelrst channel SSSeeecond channelcond channelcond channel

DDDIIIFFF sequences sequences sequences

DDDIIIFFF sequence 0,0 sequence 0,0 sequence 0,0 DDDIIIFFF sequence 1,0 sequence 1,0 sequence 1,0 DIF sequence n-1,0 DDDIIIFFF sequence 0,1 sequence 0,1 sequence 0,1 DDDIIIFFF sequence 1,1 sequence 1,1 sequence 1,1 DIF sequence n-1,1

DDDIIIFFF sequence num sequence num sequence number Fber Fber FSSSCCC

SSStttructure of a Dructure of a Dructure of a DIIIFFF

HHHeader sectieader sectieader sectiononon SSSuuubcode sectibcode sectibcode sectiooonnn VAUX sVAUX sVAUX seeeccctttiiiooonnn AAAudiudiudio &o &o & vi vi video sectideo sectideo sectiooonnn

sequencesequencesequence
DDDIFIFIF bl bl blocksocksocks

H0H0H0,0,0,0 SC0SC0SC0,,,000 SC1SC1SC1,,,000 VA0VA0VA0,,,000 VA1VA1VA1,,,000 VA2VA2VA2,,,000 A0A0A0,,,000 V 0V 0V 0,,,000 VVV11132,032,032,0 VVV133,0133,0133,0 V1V1V1333444,,,000

DIFDIFDIF bl bl block numock numock numbbber Fer Fer FSSSCCC

BBByyyte posite posite posititition numon numon numberberber

0 1 2 3 0 1 2 3 0 1 2 3 --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- 797979

SSStttructure of a Dructure of a Dructure of a DIIIFFF bl bl blockockock IDIDID DaDaDatatata

WWherehere
n = 10 forn = 10 for 525/60 system 525/60 system
n = 12 forn = 12 for 625/50 system 625/50 system
FFSSCC:: F Fiirst/second channelrst/second channel
IEC 1906/05
Figure 2 – Data structure of one video frame for 50 Mb/s structure
Data in one video frame
DIF sequences
DIF sequence 0,0 DIF sequence 1,0 DIF sequence n-1,0
DIF sequence number FSC
Structure of a DIF
Header section Subcode section VAUX section Audio & video section
sequence
H0,0 SC0,0 SC1,0 VA0,0 VA1,0 VA2,0 A0,0 V 0,0 VV132,0132,0 V133,0 V134,
...

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