DIN IEC 62447-3-2008 Helical-scan compressed digital video cassette system using 6 35 mm magnetic tape - Format D-12 - Part 3 Data stream format (IEC 62447-3 2007) Text in English《.pdf

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1、Januar 2008DEUTSCHE NORM DKE Deutsche Kommission Elektrotechnik Elektronik Informationstechnik im DIN und VDEPreisgruppe 14DIN Deutsches Institut fr Normung e.V. Jede Art der Vervielfltigung, auch auszugsweise, nur mit Genehmigung des DIN Deutsches Institut fr Normung e.V., Berlin, gestattet.ICS 33.

2、160.40!$Jg8“1396821www.din.deDDIN IEC 62447-3Videokassettensystem mit komprimierter digitalerSchrgspuraufzeichnung auf Magnetband 6,35 mm Format D-12 Teil 3: Datenstromformat (IEC 62447-3:2007); Text EnglischHelical-scan compressed digital video cassette system using 6,35 mm magnetic tape Format D-1

3、2 Part 3: Data stream format (IEC 62447-3:2007); Text in EnglishSystme de vidocassette enregistrement hlicodal digital comprim en utilisant unebande magntique de 6,35 mm Format D-12 Partie 3: Format de donnes en continu (CEI 62447-3:2007); Texte en anglaisAlleinverkauf der Normen durch Beuth Verlag

4、GmbH, 10772 Berlin www.beuth.deGesamtumfang 18 SeitenNationales Vorwort Vorausgegangener Norm-Entwurf: E DIN IEC 62447-3:2006-07. Fr diese Norm ist das nationale Arbeitsgremium K 742 Audio-, Video- und Multimediasysteme, -gerte und -komponenten“ der DKE Deutsche Kommission Elektrotechnik Elektronik

5、Informationstechnik im DIN und VDE (http:/www.dke.de) zustndig. Die enthaltene IEC-Publikation wurde vom TC 100 Audio, video and multimedia systems and equipment“ erarbeitet. Das IEC-Komitee hat entschieden, dass der Inhalt dieser Publikation bis zu dem auf der IEC-Website unter http:/webstore.iec.c

6、h“ mit den Daten zu dieser Publikation angegebenen Datum (maintenance result date) unverndert bleiben soll. Zu diesem Zeitpunkt wird entsprechend der Entscheidung des Komitees die Publikation besttigt, zurckgezogen, durch eine Folgeausgabe ersetzt oder gendert. Da sich die Benutzer der vorliegenden

7、Norm der englischen Sprache als Fachsprache bedienen, wird die Englische Fassung der IEC 62455 verffentlicht. Fr die meisten der verwendeten Begriffe existieren keine gebruchlichen deutschen Benennungen, da sich die deutschen Anwender in der Regel ebenfalls der englischen Benennungen bedienen. Diese

8、 Norm steht nicht in unmittelbarem Zusammenhang mit Rechtsvorschriften und ist nicht als Sicherheitsnorm anzusehen. Das Prsidium des DIN hat mit Prsidialbeschluss 1/2004 festgelegt, dass DIN-Normen, deren Inhalt sich auf internationale Arbeitsergebnisse der Informationsverarbeitung grndet, unter bes

9、timmten Bedingungen allein in englischer Sprache verffentlicht werden drfen. Diese Bedingungen sind fr die vorliegende Norm erfllt. Fr den Fall einer undatierten Verweisung im normativen Text (Verweisung auf eine Norm ohne Angabe des Ausgabedatums und ohne Hinweis auf eine Abschnittsnummer, eine Tab

10、elle, ein Bild usw.) bezieht sich die Verweisung auf die jeweils neueste gltige Ausgabe der in Bezug genommenen Norm. Fr den Fall einer datierten Verweisung im normativen Text bezieht sich die Verweisung immer auf die in Bezug genommene Ausgabe der Norm. Der Zusammenhang der zitierten Normen mit den

11、 entsprechenden Deutschen Normen ergibt sich, soweit ein Zusammenhang besteht, grundstzlich ber die Nummer der entsprechenden IEC-Publikation. Beispiel: IEC 60068 ist als EN 60068 als Europische Norm durch CENELEC bernommen und als DIN EN 60068 ins Deutsche Normenwerk aufgenommen. DIN IEC 62447-3:20

12、08-012CONTENTS CONTENTS3 1 Scope 4 2 Normative references .4 3 Abbreviations and acronyms .4 4 Identification within the serial data transport interface (SDTI) 5 4.1 SDTI header packet data .5 4.2 Payload.5 5 Stream block format .5 5.1 Stream block .5 5.2 Reserved data words .6 5.3 Signal type words

13、 6 5.4 Transmission type word .8 5.5 DIF block ID words 8 5.6 DIF block data words .9 5.7 ECC words 9 6 Transmission order.10 7 Mapping structure.12 7.1 Channel unit12 7.2 Mapping rules12 Annex A (informative) Block diagram of D-12 recorder17 Bibliography .18 Figure 1 Stream block format .6 Figure 2

14、 ST word mapping .6 Figure 3 TT word mapping .8 Figure 4 Mapping of DIF block ID .8 Figure 5 Mapping of ECC .9 Figure 6 Transmission order in one frame for the 100 Mb/s structure.10 Figure 7 Transmission order in a DIF sequence 11 Figure 8a For 270 Mb/s system 13 Figure 8 Channel unit mapping for th

15、e 100 Mb/s structure (525/60 SDTI system).14 Figure 9a For 270 Mb/s system 15 Figure 9b For 360 Mb/s system 16 Figure 9 Channel unit mapping for the 100 Mb/s structure (625/50 SDTI system).16 Figure A.1 Block diagram of D-7 recorder .17 Table 1 Start lines of channel units.16 DIN IEC 62447-3:2008-01

16、3HELICAL-SCAN COMPRESSED DIGITAL VIDEO CASSETTE SYSTEM USING 6,35 mm MAGNETIC TAPE FORMAT D-12 Part 3: Data stream format 1 Scope This part of IEC 62447defines the format of the data stream for the synchronous exchange of DV-based audio, data, and compressed video (whose data structure is defined in

17、 SMPTE 370M) over the interface defined in SMPTE 305M. It covers the transmission of audio, subcode data and compressed video packets associated with DV-based 100 Mb/s data structures for 525/60 SDTI and 625/50 SDTI systems. Space within SMPTE 305M not used by a data stream conforming to this standa

18、rd may be used for the transmission of data other than those representing DV-based audio, data and compressed video. In this standard, the 60 Hz system refers to the field-frequency 59,94 Hz system and the 50 Hz system refers to the field-frequency 50,0 Hz system. 2 Normative references The followin

19、g 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. SMPTE 305M.2-2000, Television Serial Data Transport Interface

20、 3 Abbreviations and acronyms SDI Serial digital interface SDTI Serial data transport interface ECC Error correction code DIF Digital interface ST Signal type STVF Signal type of video frame FF Field/frame frequency flag DVF DIF valid flag FSNF Frame sequence number flag TRF Transmission rate flag T

21、T Transmission type DIN IEC 62447-3:2008-0144 Identification within the serial data transport interface (SDTI) 4.1 SDTI header packet data The header packet data words of the serial data transport interface (SDTI) associated with this data stream format shall conform to SMPTE 305M. When the SDTI int

22、erface transports a data stream conforming to this standard, the block type word within the SDTI header packet shall have the value 173hfor transported data contained in fixed-size blocks when ECC is used and the value 233hwhen ECC is not used. 4.2 Payload The payload is composed of consecutive fixe

23、d-size blocks (see Figure 1). The SDTI data type word shall identify the data type of this payload with the value 221h. 5 Stream block format 5.1 Stream block The stream block format is shown in Figure 1. The length of each stream block is 170 words, including a secondary header, two DIF (digital in

24、terface) block IDs, two DIF block data (of stream data) and an ECC block. The secondary header contains reserved data words, signal type words, and a transmission type word. The complete word structure of the stream block for a compressed video data stream is defined below. Reserved data : 3 words S

25、ignal type : 2 words Transmission type : 1 word DIF block ID : 3 words DIF block data : 77 words DIF block ID : 3 words DIF block data : 77 words ECC : 4 words DIN IEC 62447-3:2008-015170 wordsStream blockSDTI data type 1 word PayloadAncillary data E A V Headerdata Space SAVFixedblockFixedblockFixed

26、blockFixed block Space ( From SMPTE 305M, Table 2) Reserved data ST TT Word (3 words) (3 words) (77 words) (3 words) (77 words) (4 words) DIF block ID DIFblockdataDIFblockIDDIFblockdataECC Signal type (2 words) Transmission type(1 word) 0 1 2 3 4 5 6 7 8 9 85 86 87 88 89 169 Figure 1 Stream block fo

27、rmat 5.2 Reserved data words The reserved data words shall consist of 3 words and be positioned at the start of the stream block. The default value for the reserved data is 200h. 5.3 Signal type words The signal type word (ST) mapping is shown in Figure 2. The signal type words shall consist of two

28、words. The first word of ST (word 3) includes the specific type of video frame ID (STVF ID). The second word of ST (word 4) includes the field/frame frequency flag (FF), the DIF structure format, the DIF valid flag (DVF), the frame sequence number flag (FSNF), the transmission rate flag (TRF) and re

29、served bits. B9 B8 B7 B6 B5 B4 B3 B2 B1 B0 Word 3 EP EP STVF ID Word 4 FF DIF structure ReFSNF TRF ReservedDVFEP EP Figure 2 ST word mapping IEC 940/07 IEC 941/07 DIN IEC 62447-3:2008-016a) Word 3 of ST The STVF ID shows information mainly related to pictures that have been 3:2 pull-down converted f

30、rom 480 line/29,98 frame rate progressive pictures. All values of bits B7 through B0 are set to 00has default values. Bit B8 of word 3 is equal to the even parity of B7 through B0. Bit B9 of word 3 is equal to the complement of B8. b) Word 4 of ST Bit B7 indicates the field frequency of SDI with the

31、 following values: B7 0 : 60 Hz (59,94 Hz) 1 : 50 Hz Bits B6 through B4 indicate the DIF structure with the following values: B6 B5 B4 0 0 0 : Reserved 0 0 1 : Reserved 0 1 0 : Reserved 0 1 1 : 25 Mb/s structure 1 0 0 : Reserved 1 0 1 : 50 Mb/s structure 1 1 0 : 100 Mb/s structure 1 1 1 : Reserved B

32、it B3 is reserved bit and shall be set to 0bas default value. Bit B2 is the DVF and indicates the validity of the DIF data mapped into SDTI. B2 0 : Invalid 1 : Valid Bit B1 is the FSNF and indicates the validity of the frame sequence number (see 4.3) with the following values: B1 0 : Valid 1 : Inval

33、id Bit B0 is the TRF and indicates the validity of the transmission rate (see 4.3) with the following values: B0 0 : Valid 1 : Invalid Bit B8 is equal to the even parity of B7 through B0. Bit B9 is equal to the complement of B8. DIN IEC 62447-3:2008-0175.4 Transmission type word The TT word mapping

34、is shown in Figure 3. The TT word shall consist of one word including the frame sequence number and the transmission rate. B9 B8 B7 B6 B5 B4 B3 B2 B1 B0 Word 5 EP EP Frame sequencenumberTransmissionrateFigure 3 TT word mapping Bits B7 through B4 indicate the frame sequence number with the following

35、values: 0h: 1 1h: 2 : Fh: 16 The frame sequence number identifies frames multiplexed within an SDTI frame. Bits B3 through B0 indicate the transmission rate with the following values: 0h: 1 (normal transmission rate) (see note) 1h: 2 2h: 3 3h: 4 4h: 5 5h: 6 6h: 7 7h: 8 8h Eh: Reserved Fh: 16 NOTE Th

36、e multiple of the normal transmission rate is represented by x. The normal transmission rate corresponding to normal reproduction of the television picture is 1 x. Bit B8 is equal to the even parity of B7 through B0. Bit B9 is equal to the complement of B8. 5.5 DIF block ID words The DIF block ID (I

37、D0-2) shall consist of three words, contained in bits A23 through A0 as shown in Figure 4. The lower 8-bit portion of these three words is specified in SMPTE 370M. B9 B8 B7 B6 B5 B4 B3 B2 B1 B0 Word 6 and 86 Word 7 and 87 EP2 EP1 EP3 EP2EP1EP3A15A7A23A14A6A22A10A2A18A9 A1 A17 A8 A0 A16 A13A5A21A12A4

38、A20A11A3A19Word 8 and 88 Figure 4 Mapping of DIF block ID IEC 942/07 IEC 943/07 DIN IEC 62447-3:2008-018EP1 is equal to the even parity of bits A7 through A0; EP2 is equal to the even parity of bits A15 through A8; EP3 is equal to the even parity of bits A23 through A16; and EP1 is equal to the comp

39、lement of EP1; EP2 is equal to the complement of EP2; EP2 is equal to the complement of EP3. 5.6 DIF block data words The DIF block data shall consist of 77 words. The lower 8 bits of each DIF block word represent the DIF block data, as specified in SMPTE 370M; the higher 2 bits are parity data. Bit

40、s B7 through B0 are DIF block data; Bit B8 is equal to the even parity of B7 through B0; Bit B9 is equal to the complement of B8. 5.7 ECC words Bits B7 through B0 of the words within a stream block (including reserved data words, the ST word, the TT word and all words of the DIF block ID and DIF blo

41、ck data) are optionally protected by an ECC. The ECC shall consist of four words and be inserted at the end of the stream block. The ECC is a (170,166) Reed-Solomon code in GF(256), whose field generator polynomial is shown as: P(x) = X8+ X4+ X3+ X2+ 1 where Xiare place-keeping variables in GF(2), t

42、he binary field. The generator polynomial of the code in GF(256) is: G(x) = (x+)(x+2)(x+3)(x+4) where is given by 2hin GF(256). When the value of the block type in the SDTI header (see 4.1) is 173h, the Reed-Solomon code shall be contained in C31 through C0 as shown in Figure 5. When the value of th

43、e block type is 233h, the ECC shall have the fixed value 200h. B9 B8 B7 B6 B5 B4 B3 B2 B1 B0 Word 166 Word 167 Word 168 C0 EP2 EP1 EP2 EP1 C15C7C14C6C10C2C9C1C8 C13C5C12C4C11C3EP3 EP3 C23 C22 C18 C17 C16 C21 C20 C19EP4 EP4 C31 C30 C26 C25 C24 C29 C28 C27Word 169 Figure 5 Mapping of ECC IEC 944/07 DI

44、N IEC 62447-3:2008-019EP1 is equal to the even parity of bits C7 through C0; EP2 is equal to the even parity of bits C15 through C8; EP3 is equal to the even parity of bits C23 through C16; EP4 is equal to the even parity of bits C31 through C24; and EP1 is equal to the complement of EP1; EP2 is equ

45、al to the complement of EP2; EP3 is equal to the complement of EP3; EP4 is equal to the complement of EP4. 6 Transmission order The transmission order within one frame for 100 Mb/s DV-based compression structures consisting of DIF blocks is shown in Figures 6 and 7. One frame is carried in four chan

46、nels, which are transmitted in sequence from the first channel to the fourth channel one after another. Each channel consists of 10 DIF sequences in the 60 Hz system or 12 DIF sequences in the 50 Hz system. DIF sequences within a frame are transmitted in a DIF sequence order from 0 to n-1. Each DIF

47、sequence is composed of 150 DIF blocks. DIF blocks within a DIF sequence are transmitted sequentially from DIF block 0 to 149. First channel Second channel Third channel Fourth channelDIF sequence n-1,0 DIF sequence 1,3 DIF sequence 0,3DIF sequence 1,0 DIF sequence 0,0 DIF sequence n-1,3Subcode sect

48、ionHeader section Audio H0,i : DIF block in header section; SC0,i to SC1,i : DIF blocks in subcode section; VA0,i to VA2,i : DIF blocks in VAUX section; A0,i to A8,i : DIF blocks in audio section; V0,i to V134,i : DIF blocks in video section. NOTE The DIF channel number is defined by FSC and FSP as

49、described in SMPTE 370M, Table 5. Figure 7 Transmission order in a DIF sequence IEC 946/07 DIN IEC 62447-3:2008-01117 Mapping structure The mapping structure defines where SDTI stream blocks are mapped into SDTI frames. An SDTI data block of the fixed-block variety (as used by this standard) is based on one stream block; the stream block in turn includes two DIF blocks and associated words, as shown in Figure 1. In the 525/60 SDTI