IEC 62071-2:2005
(Main)Helical-scan compressed digital video cassette system using 6,35 mm magnetic tape - Format D-7 - Part 2: Compression format
Helical-scan compressed digital video cassette system using 6,35 mm magnetic tape - Format D-7 - Part 2: Compression format
IEC 62071-2:2005 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 bilingual version (2013-07) corresponds to the monolingual English version, published in 2005-10.
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.
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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
Reference number
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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
– 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
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
– 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
62071-2 IEC:2005(E) – 5 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
HELICAL-SCAN COMPRESSED DIGITAL VIDEO CASSETTE SYSTEM
USING 6,35 mm MAG
...
IEC 62071-2 ®
Edition 1.0 2005-10
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Helical-scan compressed digital video cassette system using 6,35 mm magnetic
tape – Format D-7 –
Part 2: Compression format
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
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IEC 62071-2 ®
Edition 1.0 2005-10
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Helical-scan compressed digital video cassette system using 6,35 mm magnetic
tape – Format D-7 –
Part 2: Compression format
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
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX XB
ICS 33.160.40 ISBN 978-2-8322-0780-2
– 2 – 62071-2 IEC:2005
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
62071-2 IEC:2005 – 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 .
...
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