1、 IEC 61834-4 Edition 1.0 2010-05 INTERNATIONAL STANDARD NORME INTERNATIONALE Recording Helical-scan digital video cassette recording system using 6,35 mm magnetic tape for consumer use (525-60, 625-50, 1125-60 and 1250-50 systems) Part 4: Pack header table and contents Enregistrement Systme denregis
2、trement numrique grand public vido cassette balayage hlicodal pour la bande magntique de 6,35 mm (systmes 525-60, 625-50, 1125-60 et 1250-50) Partie 4: Tableaux des paquets en-tte et leur contenu IEC 61834-4:1998/A1:2010 AMENDMENT 1 AMENDEMENT 1 THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright 2010
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17、9 02 11 Fax: +41 22 919 03 00 IEC 61834-4 Edition 1.0 2010-05 INTERNATIONAL STANDARD NORME INTERNATIONALE Recording Helical-scan digital video cassette recording system using 6,35 mm magnetic tape for consumer use (525-60, 625-50, 1125-60 and 1250-50 systems) Part 4: Pack header table and contents E
18、nregistrement Systme denregistrement numrique grand public vido cassette balayage hlicodal pour la bande magntique de 6,35 mm (systmes 525-60, 625-50, 1125-60 et 1250-50) Partie 4: Tableaux des paquets en-tte et leur contenu INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTER
19、NATIONALE S ICS 33.160.01, 35.200 PRICE CODE CODE PRIX ISBN 978-2-88910-919-7 AMENDMENT 1 AMENDEMENT 1 Registered trademark of the International Electrotechnical Commission Marque dpose de la Commission Electrotechnique Internationale 2 61834-4 Amend. 1 IEC:2010 FOREWORD This amendment has been prep
20、ared by technical area 7: Consumer electronics storage media, data structures and equipment, of IEC technical committee 100: Audio, video and multimedia systems and equipment. The text of this amendment is based on the following documents: CDV Report on voting 100/1552/CDV 100/1628/RVC Full informat
21、ion on the voting for the approval of this amendment can be found in the report on voting indicated in the above table. The French version of this Amendment has not been voted upon. The committee has decided that the contents of this amendment and the base publication will remain unchanged until the
22、 stability 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 At this date, the publication will be reconfirmed, withdrawn, replaced by a revised edition, or amended. _ 1.2 Normative references Insert, before IEC 61880, the following new
23、 references: IEC 61834-2:1998, Recording Helical-scan digital video cassette recording system using 6,35 mm magnetic tape for consumer use (525-60, 625-50, 1125-60 and 1250-50 systems) Part 2: SD format for 525-60 and 625-50 systems IEC 61834-11:2008, Recording Helical-scan digital video cassette re
24、cording system using 6,35 mm magnetic tape for consumer use (525-60, 625-50, 1125-60 and 1250-50 systems) Part 11: HDV format for 1080i and 720p systems ETS 300 468, Specification for Service Information (SI) in DVB systems 61834-4 Amend. 1 IEC:2010 3 2 Pack header table Replace the entire Table 1 b
25、y the following new Table 1: Table 1 Pack header table 4 61834-4 Amend. 1 IEC:2010 Add, after Subclause 12.16, the following new Clause 13: 13 MPEG MPEG 0 13.1 SOURCE This pack shall be recorded at least in the VAUX main area. SERVICE ID In the case of single programme recording, SERVICE ID is the s
26、ame as the program_number in the corresponding program_map_section (PMT). SOURCE CODE SOURCE CODE defines the input source of bit stream data in combination with SERVICE ID and TUNER CATEGORY, as follows. Prescribed value TUNER CATEGORY50/60 0 = 60-field system 1 = 50-field system 61834-4 Amend. 1 I
27、EC:2010 5 STYPE STYPE defines a signal type of input signal in combination with the 50/60 flag as follows. TUNER CATEGORY: TUNER CATEGORY consists of the area number and the satellite number as follows. TUNER CATEGORY = FFh is indicative of no information. Area number specification 6 61834-4 Amend.
28、1 IEC:2010 Details of the area number are to be decided. 61834-4 Amend. 1 IEC:2010 7 MPEG 1 13.2 SOURCE CONTROL This pack shall be recorded at least in the VAUX main area. CGMS: See 9.2. TPH: Higher speed trick play. TPH defines the presence or absence of the TPH stream and the number of repetitions
29、 in combination with STYPE as follows. TPL: Lower speed trick play. TPL defines the presence or absence of the TPL stream and the number of repetitions in combination with STYPE as follows. 8 61834-4 Amend. 1 IEC:2010 SS: Source and recorded situation 00b = Scrambled data and data recorded without d
30、escrambling 01b = reserved 10b = Descrambled data or originally non-scrambled data 11b = No information REC ST: Recording start point 0 = Recording start point 1 = Not recording start point The duration of the recording start point should be the period of recording 300 tracks in 25 Mbps mode. REC MO
31、DE: 00b = Original 01b = Reserved 10b = Insert 11b = Invalid recording where Original: The video and audio areas are recorded simultaneously, including the case where the audio area is “no info“ or “invalid“. Insert: The video area is recorded leaving the pre-recorded audio area as it is. Invalid re
32、cording: The recorded video data are disregarded. MR: Multi-service recording flag 0 = Multi-services have been recorded at the same time. 1 = Only one service has been recorded. HD/SD: HD/SD flag indicates the kind of video signal. 0 = SD-MPEG2 (LL or ML) 1 = HD-MPEG2 (HL or Hi-1440L) AUD MODE: AUD
33、 MODE indicates the kind of audio compression. 00b = MPEG2 audio layer 1 and 2 01b = AC-3 audio Others = Reserved HD/SD = 1 and AUD MODE = 11b only when, HD/SD and AUD MODE are meaning No information. 61834-4 Amend. 1 IEC:2010 9 MAX BIT RATE: MAX BIT RATE is a maximum bit rate of the service which i
34、s defined in the short_smoothing_buffer_descriptor (see ETS 300 468). MAX BIT RATE consists of SB_size (two bits) + SB_leak_rate (six bits) REC END: Recording end point 0 = Recording end point 1 = Not recording end point The duration of recording end point should be 1 s. GENRE CATEGORY: GENRE CATEGO
35、RY shows the category of the service. The details are described in the TIMER ACT DATE pack. MPEG 2 13.3 REC DATE This pack should be recorded in the VAUX main area. The date when the service data are recorded is stored in this pack. 10 61834-4 Amend. 1 IEC:2010 DS: Daylight saving time 0 = Daylight
36、saving time 1 = Normal REC MODE: Thirty-minute unit of the time differential from GMT 0 = 30 min 1 = 0 min TIME ZONE: 00 to 23 3Fh = No information Examples: For Tokyo TIME ZONE = 001001b PC1 = 11001001b GMT plus 9:00 For New York with daylight saving time TIME ZONE = 011001b PC1 = 01011001b GMT plu
37、s 19:00 For New Delhi, where the 30-minute unit of the time differential from GMT is adopted, TIME ZONE = 000101b PC1 = 10000101b GMT plus 5:30 where GMT is Greenwich Mean Time DAY: 01 to 31 3Fh = No information WEEK: 0 = Sunday 4 = Thursday 1 = Monday 5 = Friday 2 = Tuesday 6 = Saturday 3 = Wednesd
38、ay 7 = No information MONTH: 01 to 12 = January to December 1Fh = No information where TNMN = Tens of month 1 = Not recording end point YEAR: 00 to 99 FFh = No information 61834-4 Amend. 1 IEC:2010 11 MPEG 3 13.4 REC TIME This pack should be recorded in the VAUX main area. The time when the service
39、data are recorded is stored based on the SMPTE/EBU time code format. In the case of not recording the MPEG BINARY pack: If FRAME is not used, FRAME shall be 3Fh. In the case of recording the MPEG BINARY pack: The flags S1 to S6 shall be recorded based on the SMPTE/EBU format. 12 61834-4 Amend. 1 IEC
40、2010 MPEG 4 13.5 BINARY GROUP This pack may be recorded in the VAUX main area. If this pack is used, the flags S1 to S6 in the MPEG REC TIME pack shall be set on the basis of the SMPTE/EBU time code format. If this pack is not used, the NO INFO pack shall be recorded. MPEG 5 13.6 STREAM This pack s
41、hould be recorded in the VAUX main area. This pack is prepared to obtain PMT_PID, PCR_PID and elementary_PIDs directly without referring to PAT and PMT. STREAM TYPE: STREAM TYPE shows the type of the elementary stream. STREAM TYPE is the same as the stream_type described in the corresponding program
42、map_section (PMT). 61834-4 Amend. 1 IEC:2010 13 ELEMENTARY PID: ELEMENTARY PID shows the PID of the packet which contains the elementary stream of STREAM TYPE. ELEMENTARY PID is the same as the elementary_PID described in the corresponding program_map_section (PMT). ELEMENTARY PID also indicates PM
43、T_PID or PCR_PID in combination with PID TYPE. PID TYPE: MPEG 6 13.7 Reserved This pack is reserved for future use. 14 61834-4 Amend. 1 IEC:2010 MPEG 7 13.8 ETN SF1: Search flag 1 Search flag 1 is described in IEC 61834-11, 8.3.4. SF2: Search flag 2 Search flag 2 is described in IEC 61834-11, 8.3.4.
44、 SPH: Search phase Search phase is described in IEC 61834-11, 8.3.4. REE: REC end ECC unit REC end ECC unit is described in IEC 61834-11, 8.3.4. PT: Picture type Picture type is described in IEC 61834-11, 8.3.4. ETN: Extended track number Extended track number is described in IEC 61834-11, 8.3.4. MP
45、EG 8 13.9 TEXT HEADER 61834-4 Amend. 1 IEC:2010 15 This pack may be recorded or written in common optional areas. TDP: Total number of text data (see Figure 55 of IEC 61834-2) For tape, total number of TEXT packs which follow this pack. For MIC, total number of text data bytes which follow PC3. TEXT
46、 TYPE: 0 = Name 7 = Subtitle Dh = Two-byte coded font 1 = Memo 8 = Outline Eh = Graphic 2 = Station 9 = Full screen Fh = No information 3 = Model Ah = Teletext header Others = Reserved 6 = Operator Ch = One-byte coded font OPN: Option number OPN is the same as the option number of UK teletext. More
47、details are described in the teletext specification (EBU SPB 492). If OPN is not used, OPN shall be 111b. TEXT CODE: The TEXT CODE designates the character set. The details are described in the CONTROL TEXT HEADER pack. MPEG 9 13.10 TEXT This pack may be recorded in common optional areas on tape. Th
48、is pack contains font data, graphic data and text data according to the TEXT TYPE designated in the MPEG TEXT HEADER pack. 16 61834-4 Amend. 1 IEC:2010 MPEG 10 13.11 SERVICE START This pack may be recorded or written in common optional areas. This pack shows the tape position of the service start us
49、ing the title time code. DF: Drop-frame flag 0 = Drop-frame mode 1 = Non-drop-frame mode The drop-frame sequence shall be based on the SMPTE/EBU format. For consumer digital VCR, DF shall be 0. FRAMES: If 50/60 in the SOURCE pack is 0 then 00 to 29. If 50/60 in the SOURCE pack is 1 then 00 to 24. SECONDS: 00 to 59 MINUTES: 00 to 59 HOUR
