IEC 62447-2-2007 Helical-scan compressed digital video cassette system using 6 35 mm magnetic tape - Format D-12 - Part 2 Compression format《用6.35mm磁带的螺旋扫描压缩数字视频盒式录象带系统.格式D-12.第2部分 压缩格式》.pdf
《IEC 62447-2-2007 Helical-scan compressed digital video cassette system using 6 35 mm magnetic tape - Format D-12 - Part 2 Compression format《用6.35mm磁带的螺旋扫描压缩数字视频盒式录象带系统.格式D-12.第2部分 压缩格式》.pdf》由会员分享,可在线阅读,更多相关《IEC 62447-2-2007 Helical-scan compressed digital video cassette system using 6 35 mm magnetic tape - Format D-12 - Part 2 Compression format《用6.35mm磁带的螺旋扫描压缩数字视频盒式录象带系统.格式D-12.第2部分 压缩格式》.pdf(74页珍藏版)》请在麦多课文档分享上搜索。
1、 INTERNATIONAL STANDARD IEC 62447-2First edition 2007-06Helical-scan compressed digital video cassette system using 6,35 mm magnetic tape Format D-12 Part 2: Compression format Reference number IEC 62447-2:2007(E) THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright 2007 IEC, Geneva, Switzerland All ri
2、ghts reserved. Unless otherwise specified, 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 either IEC or IECs member National Committee in the country of the requ
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4、: inmailiec.ch Web: www.iec.ch About the IEC The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes International Standards for all electrical, electronic and related technologies. About IEC publications The technical content of IEC publica
5、tions is kept under constant review by the IEC. Please make sure that you have the latest edition, a corrigenda or an amendment might have been published. Catalogue of IEC publications: www.iec.ch/searchpub The IEC on-line Catalogue enables you to search by a variety of criteria (reference number, t
6、ext, technical committee,). It also gives information on projects, withdrawn and replaced publications. IEC Just Published: www.iec.ch/online_news/justpub Stay up to date on all new IEC publications. Just Published details twice a month all new publications released. Available on-line and also by em
7、ail. Customer Service Centre: www.iec.ch/webstore/custserv If you wish to give us your feedback on this publication or need further assistance, please visit the Customer Service Centre FAQ or contact us: Email: csciec.ch Tel.: +41 22 919 02 11 Fax: +41 22 919 03 00 INTERNATIONAL STANDARD IEC 62447-2
8、First edition 2007-06Helical-scan compressed digital video cassette system using 6,35 mm magnetic tape Format D-12 Part 2: Compression format XB For price, see current catalogue PRICE CODE Commission Electrotechnique Internationale International Electrotechnical Commission 2 62447-2 IEC:2007(E) CONT
9、ENTS FOREWORD.5 1 Scope.7 2 Normative references .7 3 Abbreviations and acronyms.8 4 Data processing .8 4.1 General .8 4.1.1 Video encoding parameter.9 4.1.2 Audio encoding parameter.9 4.1.3 Subcode data 9 4.1.4 Frame structure.9 4.2 Data structure .9 4.3 Header section11 4.3.1 ID 11 4.3.2 Data 14 4
10、.4 Subcode section15 4.4.1 ID 15 4.4.2 Data 15 4.5 VAUX section 19 4.5.1 ID 19 4.5.2 Data 19 4.6 Audio section 23 4.6.1 ID 23 4.6.2 Data 23 4.7 Video section 28 4.7.1 ID 28 4.7.2 Data 28 5 Video compression .32 5.1 Video structure32 5.1.1 Video sampling structure .32 5.1.2 DCT block .37 5.1.3 Macro
11、block.38 5.1.4 Super block .49 5.1.5 Definition of super block number, macro block number and value of the pixel 49 5.1.6 Definition of video segment and compressed macro block .53 5.2 DCT processing.54 5.2.1 DCT mode.54 5.2.2 Weighting 55 5.2.3 Output order 56 5.3 Quantization57 5.3.1 Introduction
12、.57 5.3.2 Bit assignment for quantization57 5.3.3 Quantization step 57 5.4 Variable length coding (VLC).58 5.5 Arrangement of a compressed macro block .61 5.6 Arrangement of a video segment.63 62247-2 IEC:2007(E) 3 Annex A (informative) Block diagram of D-12 recorder.67 Annex B (normative) Digital f
13、ilter for sampling-rate conversion 68 Annex C (informative) Relation to IEC 61834-369 Bibliography70 Figure 1 Data processing block diagram 9 Figure 2 Data structure 10 Figure 3 Data structure of a DIF sequence.11 Figure 4 Data in the subcode section .15 Figure 5 Pack in SSYB.16 Figure 6 Data in the
14、 VAUX section.20 Figure 7 Data in the audio section23 Figure 8 Conversion of audio sample to audio data bytes 25 Figure 9 Arrangement of AAUX packs in audio auxiliary data.25 Figure 10 Sampling structure for the 1080/60i system35 Figure 11 Sampling structure for the 1080/50i system36 Figure 12 Sampl
15、ing structure for the 720/60p system.37 Figure 13 DCT block and the pixel coordinates for the 1080-line system41 Figure 14 DCT block and the pixel coordinates for the 720-line system41 Figure 15 DCT block arrangement for the 1080/60i system 41 Figure 16 DCT block arrangement for the 1080/50i system
16、41 Figure 17 DCT block arrangement for the 720/60p system .42 Figure 18 Macro block and DCT blocks for the 1080-line system42 Figure 19 Macro block and DCT blocks for the 720-line system .42 Figure 20 Arrangement of macro blocks for the 1080/60i system43 Figure 21 Arrangement of macro blocks for the
17、 1080/50i system44 Figure 22 Arrangement of macro blocks for the 720/60p system 45 Figure 23 Divided blocks for the 1080/60i system 46 Figure 24 Divided blocks for the 1080/50i system 47 Figure 25 Divided blocks for the 720/60p system .48 Figure 26 Super blocks and macro blocks in a divided block fo
18、r the 1080/60i system.50 Figure 27 Macro block order in a super block for the 1080/60i system50 Figure 28 Super blocks and macro blocks for the 1080/50i system.51 Figure 29 Macro block order in a super block for the 1080/50i system51 Figure 30 Super blocks and macro blocks in a divided block for the
19、 720/60p system52 Figure 31 Macro block order in a super block for the 720/60p system 52 Figure 32 Rearrangement of pixels in the 8-8-field-DCT mode .55 Figure 33 Quantizer matrix for the 1080/60i system .56 Figure 34 Quantizer matrix for the 1080/50i system .56 Figure 35 Quantizer matrix for the 72
20、0/60p system 56 Figure 36 The output order of a weighted DCT block .57 4 62447-2 IEC:2007(E) Figure 37 Arrangement of a compressed macro block61 Figure 38 Arrangement of a video segment after the bit rate reduction.65 Figure 39 Video error code 66 Figure A.1 Block diagram of D-12 recorder 67 Figure
21、B.1 Template for insertion-loss frequency characteristic68 Figure B.2 Pass band ripple tolerance .68 Table 1 ID data of a DIF block .12 Table 2 Section type 12 Table 3 DIF sequence number for the 60 Hz system 13 Table 4 DIF sequence number for the 50 Hz system 13 Table 5 DIF channel number14 Table 6
22、 DIF block number14 Table 7 Data (payload) in the header section.14 Table 8 SSYB ID16 Table 9 Pack header table .17 Table 10 Mapping of packets in SSYB data17 Table 11 Mapping of time code pack18 Table 12 Mapping of binary group pack19 Table 13 Mapping of VAUX pack in a DIF sequence 20 Table 14 Mapp
23、ing of VAUX source pack 20 Table 15 Mapping of VAUX source control pack.21 Table 16 FF/FS for the 1080-line system22 Table 17 FF/FS for the 720-line system .22 Table 18 Mapping of AAUX pack in a DIF sequence 25 Table 19 Mapping of AAUX source pack 26 Table 20 Mapping of AAUX source control pack.27 T
24、able 21 SPEED code definition 28 Table 22 Video DIF blocks and compressed macro blocks for the 60 Hz system 30 Table 23 Video DIF blocks and compressed macro blocks for the 50 Hz system 31 Table 24 Construction of input video34 Table 25 Quantization step 58 Table 26 Length of codewords .59 Table 27
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