1、 IEC 61883-4 Edition 2.0 2004-08 INTERNATIONAL STANDARD NORME INTERNATIONALE Consumer audio/video equipment Digital interface Part 4: MPEG2-TS data transmission Matriel audio/vido grand public Interface numrique Partie 4: Transmission de donnes MPEG2-TS IEC 61883-4:2004 THIS PUBLICATION IS COPYRIGHT
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16、audio/video equipment Digital interface Part 4: MPEG2-TS data transmission Matriel audio/vido grand public Interface numrique Partie 4: Transmission de donnes MPEG2-TS INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE M ICS 33.160.01; 35.200 PRICE CODE CODE PRIX IS
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18、ublication via un distributeur agr. 2 61883-4 IEC:2004 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ CONSUMER AUDIO/VIDEO EQUIPMENT DIGITAL INTERFACE Part 4: MPEG2-TS data transmission FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization compr
19、ising all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and in addition to other activities, IEC publishes International Stand
20、ards, Technical Specifications, Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with may participate in this prepa
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25、nal publication shall be clearly indicated in the latter. 5) IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any equipment declared to be in conformity with an IEC Publication. 6) All users should ensure that they have the latest edition of this publ
26、ication. 7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and members of its technical committees and IEC National Committees for any personal injury, property damage or other damage of any nature whatsoever, whether direct or indirect,
27、 or for costs (including legal fees) and expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC Publications. 8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is indispensable for the cor
28、rect application of this publication. 9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of patent rights. IEC shall not be held responsible for identifying any or all such patent rights. International Standard IEC 61883-4 has been prepared
29、by technical area 4: Digital system interfaces and protocols, of IEC technical committee 100: Audio, video and multimedia systems and equipment. This second edition of IEC 61883-4 cancels and replaces the first edition published in 1998. This edition contains the following significant technical chan
30、ges with respect to the previous edition: Updated IEC 61834-9, IEC 61834-10 and added IEC 61834-1 in Bibliography. This bilingual version (2013-02) corresponds to the monolingual English version, published in 2004-08. 61883-4 IEC:2004 3 The text of this standard is based on the following documents:
31、CDV Report on voting 100/729/CDV 100/818/RVC Full information on the voting for the approval of this standard can be found in the report on voting indicated in the above table. The French version of this standard has not been voted upon. This publication has been drafted in accordance with the ISO/I
32、EC Directives, Part 2. IEC 61883 consists of the following parts under the general title Consumer audio/video equipment Digital interface: Part 1: General Part 2: SD-DVCR data transmission Part 3: HD-DVCR data transmission Part 4: MPEG2-TS data transmission Part 5: SDL-DVCR data transmission Part 6:
33、 Audio and music data transmission protocol Part 7: Transmission of ITU-R BO.1294 System B The committee has decided that the contents of this publication will remain unchanged until the maintenance result date indicated on the IEC web site under “http:/webstore.iec.ch“ in the data related to the sp
34、ecific publication. At this date, the publication will be reconfirmed; withdrawn; replaced by a revised edition, or amended. 4 61883-4 IEC:2004 CONSUMER AUDIO/VIDEO EQUIPMENT DIGITAL INTERFACE Part 4: MPEG2-TS data transmission 1 Scope This part of IEC 61883 describes the packetization and the trans
35、mission timing for MPEG2 transport streams for the IEEE 1394 digital interface. It describes the specifications for the IEEE 1394 packet, the CIP header and the transmission timing for use with the transport stream as specified in prETS 300 468. This explanation is based on the transport stream as s
36、pecified in DVB. 2 Normative reference The following 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. IEC 61883-
37、1, Consumer audio/video equipment Digital interface Part 1: General ISO/IEC 13818-1, Information technology Generic coding of moving pictures and associated audio information: Systems ISO/IEC 13818-2, Information technology Generic coding of moving pictures and associated audio information: Video IS
38、O/IEC 13818-3, Information technology Generic coding of moving pictures and associated audio information Part 3: Audio ISO/IEC 13818-9, Information technology Generic coding of moving pictures and associated audio information Part 9: Extension for real time interface for system decoders prETS 300 46
39、8, Digital broadcasting systems for television, sound and data services Specification for Service Information (SI) in digital video broadcasting (DVB) systems 3 Terms, definitions, and abbreviations For the purposes of this document, the following abbreviations apply: CIP Common Isochronous Packet C
40、TR Cycle Time Register DVB Digital Video Broadcasting (in Europe) SI Service Information ETS European Telecommunication Standard MPEG Moving Picture Experts Group RTI Real Time Interface TS Transport Stream TSP Transport Stream Packet IEEE 1394 packet IEEE 1394 isochronous packet defined in IEC 6188
41、3-1 61883-4 IEC:2004 5 4 Construction of IEEE 1394 packet 4.1 Structure of the MPEG2-TS data stream The length of the source packet is 192 bytes (see Figure 1). The source packet consists of one MPEG2-TSP with a length of 188 bytes and a source packet header of 4 bytes. The source packet header cont
42、ains a time stamp. MPEG2-TS packets shall comply with ISO/IEC 13818 series. 4.2 Packetization of source packet of the MPEG2-TS data stream A source packet is split into 8 data blocks with a length of 6 quadlets. Zero or more data blocks are packed in an IEEE 1394 isochronous packet. A receiver of th
43、e isochronous packets shall collect the data blocks of one source packet and combine them in order to reconstruct the source packet before sending this source packet to the application. There are restrictions on the transmission of fractions (see 5.2). Active transmitters shall send an isochronous p
44、acket in every cycle. If not enough data is available to transmit in the isochronous packet, then an empty packet shall be transmitted. 4.3 Time stamp The time stamp in the source packet header is used by isochronous data receivers for reconstructing a correct timing of the TSPs at their output. The
45、 time stamp indicates the intended delivery time of the first bit/byte of the TSP from the receiver output to the transport stream target decoder. The time stamp represents the 25 bits of the IEEE 1394 CYCLE_TIME register (CTR) at the moment the first bit/byte of the TSP arrives from the application
46、, plus some offset. The offset is equal to the constant overall delay of the TSP between the moment of arriving (of the first bit) and the moment the TSP (first bit) is delivered by the receiver to the application. 5 CIP header 5.1 Structure of CIP header The structure of the CIP header (see Figure
47、2) for the MPEG2-TS is compliant with the two quadlet CIP header format explained in IEC 61883-1, 6.2.1. The static values of the CIP header components are as follows. SID . (depends on configuration) DBS 00000110 2(6 quadlets) FN 112 (8 data blocks in one source packet) QPC 000 2(no padding) SPH 1
48、(source packet header is present) DBC 0 . 255 (see 5.2) FMT 100000 2(format type of MPEG2-TS) FDF . (see 5.3) 6 61883-4 IEC:2004 5.2 DBC values The first data block of a source packet (data block containing the source packet header) corresponds to a DBC value from which the three LSBs are 000. An is
49、ochronous packet contains 0, 1, 2 or 4 data blocks or an integer number of source packets. Where the isochronous packet contains one data block, then the DBC value increments with 1; two data blocks, then the DBC value is a multiple of 2, the LSB is 0; four data blocks, then the DBC value is a multiple of 4, the two LSBs are 00. Where the isochronous packet contains n source packets (n is an integer) then the
