1、STD-SMPTE RP 20V-ENCL 2000 II 8357VOL 0004L04 7b = SMPTE RECOMMENDED PRACTICE SDTI-CP MPEG Decoder Templates RP 204-2000 1 Scope This practice defines decoder templates for the encoding of SDTI content packages (SDTI-CP) with MPEG coded picture streams. The SDTI-CP comprises a standard for the packa
2、ge format and a further standard for the definition of elements and metadata. The combination of these two standards resuits in a very flexible means of transferring content over the SMPTE 305M (SDTI) transport which would demand an unnecessarily com- plex receiver/decoders if all possibilities were
3、 met. The purpose of this practice is to provide appropriate limits to the requirements for a receiver/decoder in order to allow practical working devices to be supplied to meet the needs of defined operations. Additional MPEG templates are expected to be added to this practice as the standard matur
4、es. It is recom- mended that each new template is a superset of previous templates so that any decoder defined by a template in this document can operate with both the defined template and all subsets. 2 Normative references The following standards contains provisions which, through reference in thi
5、s text, constitute provisions of this practice. At the time of publication, the editions indicated were valid. All standards are subject to revision, and parties to agreements based on this practice are encouraged to investigate the possibility of applying the most recent edition of the standards in
6、dicated below. AES3-1992,Digital Audio Engineering-Serial Trans- mission Format for Two-Channel Linearly Repre- sented Digital Audio Data Page 1 of 3 pages ANSVSMPTE 298M-1997, Television - Universal Labels for Unique Identification of Digital Data SMPTE 12M-1999, Television, Audio and Film - Time a
7、nd Control Code SMPTE 35M-1998, Television - Serial Data Trans- port Interface SMPTE 326M-2000, Television - SDTI Content Package Format (SDTI-CP) SMPTE 328M-2000, Television - MPEGP Video Elementary Stream Editing Information SMPTE 331 M-2000, Television - Element and Metadata Definitions for the S
8、DTI-CP ISO/IEC 13818-2:1996, Information Technology - Generic Coding of Moving Pictures and Associated Audio Information: Video and Amendment 2:1997 (MPEG-2,4:2:2QML) ISO/IEC 13818-2:1996, Amendment 2:1997 (MPEG- 2,4:2:2PQML) 3 General This practice defines templates for SDTI-CP decoders based on MP
9、EG picture coding. All templates defined in this document shall have the class name of MPEG template with a value of O1 h. The template is identified by ANSVSMPTE 298M. universal label, having the names and values as defined in table1 . Copyright Q 2000 by THE SOCIETY OF MOTION PICTURE AND TELEVISIO
10、N ENGINEERS 595 W. Hartsdaie Ave., White Plains, NY 10607 (914)761-1100 Approved January 31,2000 STD-SMPTE RP 20Li-ENGL 2000 13 8357YOL 0004L05 bTY m Byte No. DescriDtion RP 24-2O Value ihex 3 4 5 1 1 Object identifier I 0% 2 I Label size I OEh IS0 organization 2Bh Designation: SMPTE 34h Registry: L
11、abels 04h 14 15 16 6 I Labels category: interchange 1 01h 7 I Labels registry I 01h Template type xxh Template extension xxh Zero fill ooh 1 8 I Registry version I olh I 9 I Wrapper labels I 01h 1 O I Simple wrapper labels 1 01h I 17 I Standard: CP I 01h I 12 I CP version I 01h 13 I Temdate class: M
12、PEG-2 1 olh The default case of the template type value is O and - the set of extensions does not cause the content package to fall under another template type. 4 MPEG2 baseline template Thiitemplateisprovidedforreceiver/decodeopet.ating with MPEG-2 4:2:2PbMLencoded p*kturesaccompa- nied by an &hann
13、e uncorrpressed audio capability. it specifies a receiver/decoder capable of only basic operating modes. This template type has the value of O1 h. Receivers/decoders specified to this template shall meet or exceed the capabilities specified below. 4.1 Format capability The minimum decoder format com
14、pliance is specified below. The following list defines the format limitations of this template: - Transfer modes: O (synchronous) only. - riming modes: O (normal) and 2 (dual). - No multiplexing (channel handle = 000011). - Forward error correction is supported (FEC active flag = 1). - The order of
15、items shall be system, picture, audio, and auxiliary. - Operates only on SMPTE 305M at 270 Mb/s. 4.2 Element types The minimum lit of element types which shall be decoded is as follows: Page 2 of 3 pages STDmSflPTE RP 2011-ENGL 2000 8357qOL 0004LOb 530 W RP 204-2000 - One MPEGQ video stream element
16、according to element definition 6.1, type: O1 h. The MPEG pic- ture coding is limited to MPEG-2 4:2:2POML and MPEG-2 MPBML according to ISOAEC 13818-2 (video) and ISO/IEC 13818-2 amendment 2 (MPEG-2 4:2:2PQ ML). The element may contain user data according to SMPTE 328M. - One AES3 8channel audio ele
17、ment according to element definition 7.1, type: loh. This template supports only uncompressed AES3 audio. - One general data auxiliary element according to element definition 8.3, type: 22h. 4.3 Metadatatypes The minimum list of metadata types which shall be decoded as follows: - SMPTE 12M time code metadata according to metadata definition 9.2, type = 811,. - MPEG-2 picture editing metadata according to metadata definition 9.5, type = 84h. - AES3 audio editing metadata according to metadata definition 9.6, type = 8%. Page 3 of 3 pages
