Helical-scan digital video cassette recording format using 12,65 mm magnetic tape and incorporating MPEG-4 compression - Type D-16 format

This International Standard specifies the track content, format, and recording method of the data blocks containing compressed video, AES3 audio data, and associated data which form the helical records on 12,65 mm tape in cassettes. This standard supports recording of source picture formats using 1920 × 1080 pixels with the 4:4:4 and 4:2:2 sampling structure specified in SMPTE 274M at the frame rate of 23,98 Hz, 24 Hz, 25 Hz and 29,97 Hz, and using 1280 × 720 pixels with the 4:2:2 sampling structure specified in SMPTE 296M at the frame rates of 50 Hz and 59,94 Hz (see note). This standard also supports recording of 12 channels of AES3 audio data and 3 lines of uncompressed blanking interval data. This standard includes packetizing and shuffling operations supporting picture compression using the DCT and DPCM encoding methods defined by ISO/IEC 14496-2 (MPEG-4 simple studio profile).

Videoaufzeichnung - Videokassettensystem mit digitaler Schrägspuraufzeichnung auf Magnetband 12,65 mm und eingeschlossener MPEG-4-Kompression - Format D-16

Format d'enregistrement à balayage hélicoïdal pour cassette vidéo numérique utilisant une bande magnétique de 12,65 mm avec système de compression MPEG-4 - Format D-16

La CEI 62141:2005 définit le contenu des pistes, leur format et la méthode d'enregistrement des blocs de données contenant de la vidéo compressée, des données audio AES3 et des données associées qui forment les enregistrements hélicoïdaux sur une bande de 12,65 mm dans des cassettes. La présente norme prend en charge l'enregistrement de formats d'image source utilisant 1920 x 1080 pixels avec la structure d'échantillonnage 4:4:4 et 4:2:2 spécifiée dans la SMPTE 274M aux fréquences image de 23,98 Hz, 24 Hz, 25 Hz et 29,97 Hz, et utilisant 1280 x 720 pixels avec la structure d'échantillonnage 4:2:2 spécifiée dans la SMPTE 296M aux fréquences image de 50 Hz et 59,94 Hz (voir note). Cette norme prend également en charge l'enregistrement de 12 voies de données audio AES3 et 3 lignes de données non compressées d'intervalle de suppression vertical. Cette norme inclut les opérations de mise en paquets et de brassage prenant en charge la compression d'image utilisant les méthodes de codage DCT et DPCM définies par l'ISO/CEI 14496-2 ("MPEG-4 simple studio profile"). La présente version bilingue (2012-11) correspond à la version anglaise monolingue publiée en 2005-10.

Digitalno zapisovanje v videorekorderju s poševnimi sledmi na magnetni trak, širok 12,65 mm, s kompresijo po MPEG-4 – Format tipa D-16

General Information

Status
Published
Publication Date
30-Sep-2006
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
01-Oct-2006
Due Date
01-Oct-2006
Completion Date
01-Oct-2006

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SLOVENSKI SIST EN 62141:2006
STANDARD
oct 2006
Digitalno zapisovanje v videorekorderju s poševnimi sledmi na magnetni
trak, širok 12,65 mm, s kompresijo po MPEG-4 – Format tipa D-16

Helical-scan digital video cassette recording format using 12,65 mm magnetic tape

and incorporating MPEG-4 compression – Type D-16 format
ICS 33.160.40 Referenčna številka
SIST EN 62141:2006(en)

© Standard je založil in izdal Slovenski inštitut za standardizacijo. Razmnoževanje ali kopiranje celote ali delov tega dokumenta ni dovoljeno

---------------------- Page: 1 ----------------------
EUROPEAN STANDARD
EN 62141
NORME EUROPÉENNE
June 2006
EUROPÄISCHE NORM
ICS 33.160.40
English version
Helical-scan digital video cassette recording format using
12,65 mm magnetic tape and incorporating MPEG-4 compression -
Type D-16 format
(IEC 62141:2005)
Format d'enregistrement à balayage Videoaufzeichnung -
hélicoïdal pour cassette vidéo numérique Videokassettensystem mit digitaler
utilisant une bande magnétique Schrägspuraufzeichnung auf Magnetband
de 12,65 mm avec système 12,65 mm und eingeschlossener
de compression MPEG-4 - MPEG-4-Kompression -
Format D-16 Format D-16
(CEI 62141:2005) (IEC 62141:2005)

This European Standard was approved by CENELEC on 2006-05-01. 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, 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 62141:2006 E
---------------------- Page: 2 ----------------------
EN 62141:2006 - 2 -
Foreword

The text of the International Standard IEC 62141:2005, 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 62141 on 2006-05-01 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) 2007-05-01
– latest date by which the national standards conflicting
with the EN have to be withdrawn (dow) 2009-05-01
Annex ZA has been added by CENELEC.
__________
Endorsement notice

The text of the International Standard IEC 62141:2005 was approved by CENELEC as a European

Standard without any modification.
__________
---------------------- Page: 3 ----------------------
- 3 - EN 62141:2006
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
IEC 61213 1993 Analogue audio recording on video tape - EN 61213 1994
Polarity of magnetization
IEC 61237-1 1994 Broadcast video tape recorders - Methods of EN 61237-1 1994
measurement
Part 1: Mechanical measurements
ISO/IEC 14496-2 2004 Information technology - Coding of audio-- -
visual objects
Part 2: Visual
ITU-R 2002 Parameter values for the HDTV standards for - -
Recommendation production and international programme
BT.709 exchange
SMPTE 12M 1999 Television - Audio and film - Time and Control - -
code
SMPTE 274M 2003 Television - 1920 x 1080 Scanning and - -
Analog and Parallel Digital Interfaces for
Multiple Picture Rates
SMPTE 276M 1995 Transmission of AES-EBU Digital Audio - -
Signals Over Coaxial Cable
SMPTE 292M 1998 Bit-Serial Digital Interface for High-Definition - -
Television Systems
SMPTE 296M 2001 Television - 1280 x 720 Progressive Image - -
Sample Structure - Analog and Digital
Representation and Analog Interface
SMPTE 299M 1997 Television - 24-Bit Digital Audio Format for - -
HDTV Bit-Serial Interface
SMPTE 372M 2002 Television - Dual Link 292M Interface for - -
1920 x 1080 Picture Raster
SMPTE RP 188 1999 Transmission of Time Code and Control Code - -
in the Ancillary Data Space of a Digital
Television Data Stream
AES3 1997 Serial transmission format for two-channel - -
linearly represented digital audio data
---------------------- Page: 4 ----------------------
INTERNATIONAL IEC
STANDARD 62141
First edition
2005-10
Helical-scan digital video cassette
recording format using 12,65 mm magnetic
tape and incorporating MPEG-4 compression –
Type D-16 format
Reference number
IEC 62141:2005(E)
---------------------- Page: 5 ----------------------
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.
Further information on IEC publications

The technical content of IEC publications is kept under constant review by the IEC,

thus ensuring that the content reflects current technology. Information relating to

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publications (see below) in addition to new editions, amendments and corrigenda.
Information on the subjects under consideration and work in progress undertaken

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please contact the Customer Service Centre:
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Tel: +41 22 919 02 11
Fax: +41 22 919 03 00
---------------------- Page: 6 ----------------------
INTERNATIONAL IEC
STANDARD 62141
First edition
2005-10
Helical-scan digital video cassette
recording format using 12,65 mm magnetic
tape and incorporating MPEG-4 compression –
Type D-16 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
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International Electrotechnical Commission
МеждународнаяЭлектротехническаяКомиссия
For price, see current catalogue
---------------------- Page: 7 ----------------------
– 2 – 62141  IEC:2005(E)
CONTENTS

FOREWORD...........................................................................................................................6

1 Scope...............................................................................................................................8

2 Normative references .......................................................................................................8

3 Terms, definitions and acronyms ......................................................................................9

3.1 Terms and definitions ..............................................................................................9

3.2 Acronyms ..............................................................................................................10

4 Environment and test conditions .....................................................................................10

4.1 Calibration tape.....................................................................................................11

4.2 Record locations and dimensions ..........................................................................11

5 Tape and cassette physical specifications ......................................................................11

5.1 Magnetic tape specifications .................................................................................11

5.2 Cassette specifications..........................................................................................11

6 Tape record physical parameters....................................................................................34

6.1 Input reference signal............................................................................................34

6.2 Tape speed ...........................................................................................................34

6.3 Helical record physical parameters........................................................................34

6.4 Longitudinal record physical parameters ...............................................................35

7 Longitudinal track signal and magnetic parameters.........................................................39

7.1 Longitudinal track record parameters.....................................................................39

7.2 Control track record parameters ............................................................................39

7.3 Time and control code track record parameters .....................................................40

8 Source picture and audio processing ..............................................................................41

8.1 Introduction ...........................................................................................................41

8.2 Input formats .........................................................................................................44

8.3 Input data segmentation and shuffling ...................................................................46

8.4 Picture data encoding............................................................................................60

8.5 Data packing .........................................................................................................63

8.6 Audio input format and data packing......................................................................77

9 Helical track signal parameters and magnetization .........................................................80

9.1 Introduction ...........................................................................................................80

9.2 Video data outer correction and shuffling...............................................................80

9.3 Audio data outer correction and shuffling...............................................................82

9.4 Helical track data parameters ................................................................................86

9.5 Channel coding .....................................................................................................97

9.6 Magnetization........................................................................................................97

Annex A (normative) Digital interfaces ................................................................................98

Annex B (informative) Tape transport and scanner............................................................100

Annex C (informative) Compatibility with the other digital formats using Type-L

derivative cassettes ............................................................................................................103

---------------------- Page: 8 ----------------------
62141 IEC:2005(E) – 3 –

Figure 1 – Top- and side-view dimensions (S-cassette) ........................................................14

Figure 2 – Bottom-view dimensions (S-cassette)...................................................................15

Figure 3 – Datum areas, supporting areas, tape guides and associated dimensions

(S-cassette) ..........................................................................................................................17

Figure 4 – Reel location in the unlocked position (S-cassette) ..............................................17

Figure 5 – Protecting lid dimensions (S-cassette) .................................................................18

Figure 6 – Reel dimensions (S-cassette)...............................................................................19

Figure 7 – Reel height in the unlocked position (S-cassette) .................................................19

Figure 8 – Unlocking lever insertion area (S-cassette) ..........................................................20

Figure 9 – Lid unlocking force (S-cassette) ...........................................................................22

Figure 10 – Lid opening force (S-cassette)............................................................................22

Figure 11 – Reel spring force (S-cassette) ............................................................................22

Figure 12 – Safety plug strength (S-cassette) .......................................................................23

Figure 13 – Extraction force (F1, F2) and friction torque (S-cassette) ...................................23

Figure 14 – Top and side views (L-cassette) .........................................................................24

Figure 15 – Bottom view (L-cassette)....................................................................................25

Figure 16 – Datum areas, supporting areas and tape guides (L-cassette) .............................27

Figure 17 – Reel location in unlocked position (L-cassette)...................................................27

Figure 18 – Protecting lid (L-cassette) ..................................................................................28

Figure 19 – Reel dimensions (L-cassette) .............................................................................29

Figure 20 – Reel height in unlocked operation (L-cassette) ...................................................29

Figure 21 – Unlocking lever insertion area (L-cassette).........................................................30

Figure 22 – Lid unlocking force (L-cassette) .........................................................................32

Figure 23 – Lid opening force (L-cassette) ............................................................................32

Figure 24 – Reel spring force (L-cassette) ............................................................................32

Figure 25 – Safety plug strength (L-cassette)........................................................................33

Figure 26 – Extraction force (F1, F2) and friction torque (L-cassette)....................................33

Figure 27 – Locations and dimensions of recorded tracks .....................................................37

Figure 28 – Locations and dimensions of tolerance zones of helical track records ................38

Figure 29 – Recorded control code waveform .......................................................................40

Figure 30 – Overall recording block diagram .........................................................................41

Figure 31 – Overall playback block diagram..........................................................................42

Figure 32 – Type D-16 encoding, one coding channel...........................................................43

Figure 33 – Type D-16 encoding, two coding channels .........................................................43

Figure 34 – 1920 × 1080/PsF 4:2:2 YC C shuffle blocks ....................................................46

B R

Figure 35 – 1920 × 1080/PsF 4:4:4 RGB shuffle blocks ........................................................47

Figure 36 – 1920 × 540/I 4:2:2 YC C shuffle blocks...........................................................48

B R

Figure 37 – 1920 × 540/I 4:4:4 RGB shuffle blocks ...............................................................49

Figure 38 – 1280 × 720/P 4:2:2 YC C frame shuffle blocks................................................49

B R

Figure 39 – 1920 × 1080/PsF 4:2:2 YC C shuffle sets .......................................................50

B R

Figure 40 – 1920 × 1080/PsF 4:4:4 RGB shuffle sets ............................................................51

---------------------- Page: 9 ----------------------
– 4 – 62141  IEC:2005(E)

Figure 41 – 1920 × 1080/I 4:2:2 YC C shuffle sets ............................................................52

B R

Figure 42 – 1920 × 1080/I 4:4:4 RGB shuffle sets .................................................................53

Figure 43 – 1280 × 720/P 4:2:2 YC C shuffle sets .............................................................54

B R

Figure 44 – 1920 × 1080 4:2:2 YC C macro block unit number allocation ..........................56

B R

Figure 45 – 1920 × 1080 4:4:4 RGB macro block unit number allocation...............................57

Figure 46 – 1280 × 720 4:2:2 YC C macro block unit number allocation ............................57

B R

Figure 47 – 1920 × 1080 ancillary data bursts.......................................................................58

Figure 48 – 1280 × 720 ancillary data bursts.........................................................................58

Figure 49 – Ancillary data headers........................................................................................59

Figure 50 – Macro block encoding ........................................................................................61

Figure 51 – Basic block format..............................................................................................63

Figure 52 – Macro block identifier byte descriptions..............................................................64

Figure 53 – Auxiliary data time code .....................................................................................67

Figure 54 – 4:2:2 YC C differential DC block order ............................................................70

B R

Figure 55 – 4:4:4 RGB differential DC block order ................................................................70

Figure 56 – 4:2:2 DCT code interleave..................................................................................71

Figure 57 – 4:2:2 YC C DCT macro block interleaving example.........................................72

B R

Figure 58 – 4:4:4 DCT code interleave..................................................................................72

Figure 59 – 4:4:4 RGB DCT macro block interleaving example .............................................73

Figure 60 – 4:2:2 YC C DPCM code word interleave order ................................................73

B R

Figure 61 – 4:2:2 YC C DPCM macro block interleaving example......................................74

B R

Figure 62 – 4:4:4 RGB DPCM code word interleave order.....................................................74

Figure 63 – 4:4:4 RGB DPCM macro block interleaving example ..........................................75

Figure 64 – 1920 × 1080 packing example ............................................................................76

Figure 65 – 1280 × 720 packing example..............................................................................76

Figure 66 – Start and end sample number of data recording mode........................................78

Figure 67 – Audio auxiliary data words .................................................................................79

Figure 68 – Video data blocking............................................................................................81

Figure 69 – Audio data blocking for each audio channel .......................................................83

Figure 70 – Audio sync block alignments on helical tracks ....................................................85

Figure 71 – General sector arrangement on helical track ......................................................86

Figure 72 – Sector and segment arrangement on helical track ..............................................88

Figure 73 – Record unit, segment, channel and track pair counts .........................................89

Figure 74 – Video sync block format .....................................................................................90

Figure 75 – Audio sync block format .....................................................................................90

Figure 76 – Sync block identification bytes ...........................................................................91

Figure 77 – Sync sequence number ......................................................................................93

Figure A1 – System overview................................................................................................98

Figure B.1 – Possible scanner configuration (29,97 Hz, 25 Hz, 24 Hz and 23,98 Hz

record unit rates) ................................................................................................................101

Figure B.2 – Possible longitudinal head location and tape wrap (29,97 Hz, 25 Hz,

24 Hz and 23,98 Hz record unit rates).................................................................................102

---------------------- Page: 10 ----------------------
62141 IEC:2005(E) – 5 –

Table 1 – Tape speeds for each record unit rate ...................................................................34

Table 2 – Record location and dimensions............................................................................36

Table 3 – Control track pulse widths .....................................................................................39

Table 4 – Data rates associated with source picture rates.....................................................42

Table 5 – 1920 × 1080 ancillary data line number ranges......................................................44

Table 6 – 1920 × 1080 source picture rates ..........................................................................45

Table 7 – 1280 × 720 ancillary data line number ranges .......................................................45

Table 8 – 1280 × 720 source picture rates ............................................................................45

Table 9 – Shuffle-set allocation.............................................................................................55

Table 10 – Pseudo-random SIZE and RANGE value .............................................................56

Table 11 – Ancillary line ID values ........................................................................................60

Table 12 – General coding constraints ..................................................................................61

Table 13 – Range for quantizer_scale_code .........................................................................62

Table 14 – Coded sequence segment numbers.....................................................................65

Table 15 – Auxiliary basic block data ....................................................................................66

Table 16 – Frame-rate flags..................................................................................................67

Table 17 – Ancillary data line numbers for 1920 × 1080 sources...........................................68

Table 18 – Macro block header syntax..................................................................................69

Table 19 – Packing size for each record unit rate..................................................................77

Table 20 – Sync sequence number and UL ...........................................................................94

Table A1 – Audio sampling clock ratios.................................................................................99

Table B.1 – Parameters for a possible scanner design........................................................100

Table B.2 – Data rate and recorded wavelength..................................................................101

---------------------- Page: 11 ----------------------
– 6 – 62141  IEC:2005(E)
INTERNATIONAL ELECTROTECHNICAL COMMISSION
___________
HELICAL-SCAN DIGITAL VIDEO CASSETTE
RECORDING FORMAT USING 12,65 mm MAGNETIC TAPE
AND INCORPORATING MEPG-4 COMPRESSION –
TYPE D-16 FORMAT (TA6)
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

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International Standard IEC 62141 has been prepared by 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
100/925/CDV 100/1004/RVC

Full information on the voting for the approval of this standard can be found in the report

...

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