ITU-T H 222 0 AMD 1-2015 Information technology – Generic coding of moving pictures and associated audio information Amendment 1 Delivery of timeline for external data (Study Group.pdf

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1、 I n t e r n a t i o n a l T e l e c o m m u n i c a t i o n U n i o n ITU-T H.222.0 TELECOMMUNICATION STANDARDIZATION SECTOR OF ITU Amendment 1 (04/2015) SERIES H: AUDIOVISUAL AND MULTIMEDIA SYSTEMS Infrastructure of audiovisual services Transmission multiplexing and synchronization Information tec

2、hnology Generic coding of moving pictures and associated audio information Amendment 1: Delivery of timeline for external data Recommendation ITU-T H.222.0 (2014) Amendment 1 ITU-T H-SERIES RECOMMENDATIONS AUDIOVISUAL AND MULTIMEDIA SYSTEMS CHARACTERISTICS OF VISUAL TELEPHONE SYSTEMS H.100H.199 INFR

3、ASTRUCTURE OF AUDIOVISUAL SERVICES General H.200H.219 Transmission multiplexing and synchronization H.220H.229 Systems aspects H.230H.239 Communication procedures H.240H.259 Coding of moving video H.260H.279 Related systems aspects H.280H.299 Systems and terminal equipment for audiovisual services H

4、.300H.349 Directory services architecture for audiovisual and multimedia services H.350H.359 Quality of service architecture for audiovisual and multimedia services H.360H.369 Telepresence H.420H.429 Supplementary services for multimedia H.450H.499 MOBILITY AND COLLABORATION PROCEDURES Overview of M

5、obility and Collaboration, definitions, protocols and procedures H.500H.509 Mobility for H-Series multimedia systems and services H.510H.519 Mobile multimedia collaboration applications and services H.520H.529 Security for mobile multimedia systems and services H.530H.539 Security for mobile multime

6、dia collaboration applications and services H.540H.549 Mobility interworking procedures H.550H.559 Mobile multimedia collaboration inter-working procedures H.560H.569 BROADBAND, TRIPLE-PLAY AND ADVANCED MULTIMEDIA SERVICES Broadband multimedia services over VDSL H.610H.619 Advanced multimedia servic

7、es and applications H.620H.629 Ubiquitous sensor network applications and Internet of Things H.640H.649 IPTV MULTIMEDIA SERVICES AND APPLICATIONS FOR IPTV General aspects H.700H.719 IPTV terminal devices H.720H.729 IPTV middleware H.730H.739 IPTV application event handling H.740H.749 IPTV metadata H

8、.750H.759 IPTV multimedia application frameworks H.760H.769 IPTV service discovery up to consumption H.770H.779 Digital Signage H.780H.789 E-HEALTH MULTIMEDIA SERVICES AND APPLICATIONS Interoperability compliance testing of personal health systems (HRN, PAN, LAN, TAN and WAN) H.820H.859 Multimedia e

9、-health data exchange services H.860H.869 For further details, please refer to the list of ITU-T Recommendations. Rec. ITU-T H.222.0 (2014)/Amd.1 (04/2015) i INTERNATIONAL STANDARD ISO/IEC 13818-1 RECOMMENDATION ITU-T H.222.0 Information technology Generic coding of moving pictures and associated au

10、dio information Amendment 1 Delivery of timeline for external data Summary Amendment 1 to ITU-T H.222.0 (2014) | ISO/IEC 13818-1:2015 enables signalling and synchronization of external enhancements of programs carried over an MPEG-2 Transport Stream (TS). Specifically, it enables transport of a medi

11、a timeline in an MPEG-2 TS program, in order to provide a stable media timeline not sensitive to program clock reference (PCR) discontinuities; it also enables signalling of the location of current and potentially upcoming external media enhancements. The technologies included in this amendment can

12、be used to locate and synchronize external content with an MPEG-2 TS program, regardless of the external content packaging or coding types. To accommodate the different application use cases, the signalling information and the timing information may be sent at different frequencies. In order to prov

13、ide frame-accurate timeline alignments despite potential PCR discontinuities that typically occur in an MPEG- 2 TS network, different types of time codes can be inserted into the TS. The information can be sent in a dedicated packetized elementary stream (PES) identified in the programs program map

14、table (PMT), for cases where bandwidth requirements are not too constrained, or can be inserted in the adaptation field of the media packet identifier (PID) when the overhead of sending one TS packet per time code would be too high. For example, the typical bitrates for time code signalling for each

15、 frame of a 60 Hz video is around 90 kbit/s using PES only carriage and between 4 and 7 kbit/s using adaptation field scheme. History Edition Recommendation Approval Study Group Unique ID* 1.0 ITU-T H.222.0 1995-07-10 15 11.1002/1000/1071 1.1 ITU-T H.222.0 (1995) Amd. 1 1996-11-11 16 11.1002/1000/38

16、34 1.2 ITU-T H.222.0 (1995) Amd. 2 1996-11-11 16 11.1002/1000/4096 1.3 ITU-T H.222.0 (1995) Technical Cor. 1 1998-02-06 16 11.1002/1000/4532 1.4 ITU-T H.222.0 (1995) Amd. 3 1998-02-06 16 11.1002/1000/4228 1.5 ITU-T H.222.0 (1995) Amd. 4 1998-02-06 16 11.1002/1000/4229 1.6 ITU-T H.222.0 (1995) Amd. 5

17、 1999-05-27 16 11.1002/1000/4498 1.7 ITU-T H.222.0 (1995) Amd. 6 1999-05-27 16 11.1002/1000/4671 2.0 ITU-T H.222.0 2000-02-17 16 11.1002/1000/5142 2.1 ITU-T H.222.0 (2000) Technical Cor. 1 2001-03-01 16 11.1002/1000/5419 2.2 ITU-T H.222.0 (2000) Technical Cor. 2 2002-03-29 16 11.1002/1000/5675 2.3 I

18、TU-T H.222.0 (2000) Amd. 1 2002-12-14 16 11.1002/1000/6190 2.4 ITU-T H.222.0 (2000) Amd. 1/Cor. 1 2003-06-29 16 11.1002/1000/6449 2.5 ITU-T H.222.0 (2000) Amd. 2 2003-06-29 16 11.1002/1000/6363 2.6 ITU-T H.222.0 (2000) Amd. 3 2004-03-15 16 11.1002/1000/7208 2.7 ITU-T H.222.0 (2000) Technical Cor. 3

19、2005-01-08 16 11.1002/1000/7435 _ * To access the Recommendation, type the URL http:/handle.itu.int/ in the address field of your web browser, followed by the Recommendations unique ID. For example, http:/handle.itu.int/11.1002/1000/11830-en. ii Rec. ITU-T H.222.0 (2014)/Amd.1 (04/2015) 2.8 ITU-T H.

20、222.0 (2000) Amd. 4 2005-01-08 16 11.1002/1000/7436 2.9 ITU-T H.222.0 (2000) Amd. 5 2005-01-08 16 11.1002/1000/7437 2.10 ITU-T H.222.0 (2000) Technical Cor. 4 2005-09-13 16 11.1002/1000/8560 3.0 ITU-T H.222.0 2006-05-29 16 11.1002/1000/8802 3.1 ITU-T H.222.0 (2006) Amd. 1 2007-01-13 16 11.1002/1000/

21、9024 3.2 ITU-T H.222.0 (2006) Amd. 2 2007-08-29 16 11.1002/1000/9214 3.3 ITU-T H.222.0 (2006) Cor. 1 2008-06-13 16 11.1002/1000/9471 3.4 ITU-T H.222.0 (2006) Cor. 2 2009-03-16 16 11.1002/1000/9692 3.5 ITU-T H.222.0 (2006) Amd. 3 2009-03-16 16 11.1002/1000/9691 3.6 ITU-T H.222.0 (2006) Cor. 3 2009-12

22、-14 16 11.1002/1000/10621 3.7 ITU-T H.222.0 (2006) Cor. 4 2009-12-14 16 11.1002/1000/10622 3.8 ITU-T H.222.0 (2006) Amd. 4 2009-12-14 16 11.1002/1000/10623 3.9 ITU-T H.222.0 (2006) Amd. 5 2011-05-14 16 11.1002/1000/11287 3.10 ITU-T H.222.0 (2006) Amd. 6 2011-05-14 16 11.1002/1000/11288 4.0 ITU-T H.2

23、22.0 2012-06-29 16 11.1002/1000/11655 4.1 ITU-T H.222.0 (2012) Amd. 1 2014-01-13 16 11.1002/1000/12054 4.2 ITU-T H.222.0 (2012) Amd. 2 2014-01-13 16 11.1002/1000/12055 4.3 ITU-T H.222.0 (2012) Amd. 3 2014-01-13 16 11.1002/1000/12056 4.4 ITU-T H.222.0 (2012) Amd. 4 2014-01-13 16 11.1002/1000/12057 4.

24、5 ITU-T H.222.0 (2012) Amd. 5 2014-10-14 16 11.1002/1000/12306 5.0 ITU-T H.222.0 2014-10-14 16 11.1002/1000/12359 5.1 ITU-T H.222.0 (2014) Amd. 1 2015-04-29 16 11.1002/1000/12452 Rec. ITU-T H.222.0 (2014)/Amd.1 (04/2015) iii FOREWORD The International Telecommunication Union (ITU) is the United Nati

25、ons specialized agency in the field of telecommunications, information and communication technologies (ICTs). The ITU Telecommunication Standardization Sector (ITU-T) is a permanent organ of ITU. ITU-T is responsible for studying technical, operating and tariff questions and issuing Recommendations

26、on them with a view to standardizing telecommunications on a worldwide basis. The World Telecommunication Standardization Assembly (WTSA), which meets every four years, establishes the topics for study by the ITU-T study groups which, in turn, produce Recommendations on these topics. The approval of

27、 ITU-T Recommendations is covered by the procedure laid down in WTSA Resolution 1. In some areas of information technology which fall within ITU-Ts purview, the necessary standards are prepared on a collaborative basis with ISO and IEC. NOTE In this Recommendation, the expression “Administration“ is

28、 used for conciseness to indicate both a telecommunication administration and a recognized operating agency. Compliance with this Recommendation is voluntary. However, the Recommendation may contain certain mandatory provisions (to ensure, e.g., interoperability or applicability) and compliance with

29、 the Recommendation is achieved when all of these mandatory provisions are met. The words “shall“ or some other obligatory language such as “must“ and the negative equivalents are used to express requirements. The use of such words does not suggest that compliance with the Recommendation is required

30、 of any party. INTELLECTUAL PROPERTY RIGHTSITU draws attention to the possibility that the practice or implementation of this Recommendation may involve the use of a claimed Intellectual Property Right. ITU takes no position concerning the evidence, validity or applicability of claimed Intellectual

31、Property Rights, whether asserted by ITU members or others outside of the Recommendation development process. As of the date of approval of this Recommendation, ITU had received notice of intellectual property, protected by patents, which may be required to implement this Recommendation. However, im

32、plementers are cautioned that this may not represent the latest information and are therefore strongly urged to consult the TSB patent database at http:/www.itu.int/ITU-T/ipr/. ITU 2015 All rights reserved. No part of this publication may be reproduced, by any means whatsoever, without the prior wri

33、tten permission of ITU. ISO/IEC 13818-1:2015/Amd.1:2015 (E) Rec. ITU-T H.222.0 (2014)/Amd.1 (04/2015) 1 INTERNATIONAL STANDARD ITU-T RECOMMENDATION Information technology Generic coding of moving pictures and associated audio information Amendment 1 Delivery of timeline for external data 1) Clause 1

34、.2 Add the following references to clause 1.2.3: IETF RFC 3986 (2005), Uniform Resource Identifier (URI): Generic Syntax. IETF RFC 5484 (2009), Associating Time-Codes with RTP Streams. 2) Clause 2.4.3.4, Table 2-6 Replace Table 2-6 with the following table: Table 2-6 Transport stream adaptation fiel

35、d Syntax No. of bits Mnemonic adaptation_field() adaptation_field_length 8 uimsbf if (adaptation_field_length 0) discontinuity_indicator 1 bslbf random_access_indicator 1 bslbf elementary_stream_priority_indicator 1 bslbf PCR_flag 1 bslbf OPCR_flag 1 bslbf splicing_point_flag 1 bslbf transport_priva

36、te_data_flag 1 bslbf adaptation_field_extension_flag 1 bslbf if (PCR_flag 1) program_clock_reference_base 33 uimsbf reserved 6 bslbf program_clock_reference_extension 9 uimsbf if (OPCR_flag 1) original_program_clock_reference_base 33 uimsbf reserved 6 bslbf original_program_clock_reference_extension

37、 9 uimsbf if (splicing_point_flag 1) splice_countdown 8 tcimsbf if (transport_private_data_flag 1) transport_private_data_length 8 uimsbf for (i 0; i transport_private_data_length; i) ISO/IEC 13818-1:2015/Amd.1:2015 (E) 2 Rec. ITU-T H.222.0 (2014)/Amd.1 (04/2015) Table 2-6 Transport stream adaptatio

38、n field Syntax No. of bits Mnemonic private_data_byte 8 bslbf if (adaptation_field_extension_flag 1) adaptation_field_extension_length 8 uimsbf ltw_flag 1 bslbf piecewise_rate_flag 1 bslbf seamless_splice_flag 1 bslbf af_descriptor_not_present_flag 1 bslbf reserved 4 bslbf if (ltw_flag 1) ltw_valid_

39、flag 1 bslbf ltw_offset 15 uimsbf if (piecewise_rate_flag 1) reserved 2 bslbf piecewise_rate 22 uimsbf if (seamless_splice_flag 1) splice_type 4 bslbf DTS_next_AU3230 3 bslbf marker_bit 1 bslbf DTS_next_AU2915 15 bslbf marker_bit 1 bslbf DTS_next_AU140 15 bslbf marker_bit 1 bslbf if (af_descriptor_n

40、ot_present_flag 0) for (i 0; i N; i) af_descriptor() for (i 0; i N; i) reserved 8 bslbf for (i 0; i N; i) stuffing_byte 8 bslbf 3) Clause 2.4.3.5 3.1) af_descriptor_not_present_flag In 2.4.3.5, add to semantics, after seamless_splice_flag and right before ltw_valid_flag: ISO/IEC 13818-1:2015/Amd.1:2

41、015 (E) Rec. ITU-T H.222.0 (2014)/Amd.1 (04/2015) 3 af_descriptor_not_present_flag This 1-bit field when set to 0 signals the presence of one or several af_descriptor() construct in the adaptation header. When this flag is set to 1 it indicates that the af_descriptor() is not present in the adaptati

42、on header. 3.2) af_descriptor In 2.4.3.5, add to semantics, after DTS_next_AU: af_descriptor may carry one or more descriptors as defined in Annex U. For descriptors carrying information associated with specific access units of an elementary stream, the descriptor applies to the first access unit th

43、at starts in the PES packet immediately following this adaptation field. There may be several TS packets carrying no payload before the start of the PES, in which case these descriptors apply to the next TS packet with payload on the same PID. The adaptation field shall contain only complete af_desc

44、riptor() descriptors, i.e., a single descriptor is always contained in a single transport stream packet. NOTE 5 The adaptation field should remain relatively small; it is therefore recommended for large descriptors to use PES carriage as defined in Annex U. 4) Clause 2.4.3.7, Table 2-22 Replace Tabl

45、e 2-22 with the following table: Table 2-22 Stream_id assignments stream_id Note stream coding 1011 1100 1 program_stream_map 1011 1101 2, 9,10 private_stream_1 1011 1110 padding_stream 1011 1111 3 private_stream_2 110x xxxx ISO/IEC 13818-3 or ISO/IEC 11172-3 or ISO/IEC 13818-7 or ISO/IEC 14496-3 au

46、dio stream number x xxxx 1110 xxxx Rec. ITU-T H.262 | ISO/IEC 13818-2 or ISO/IEC 11172-2 or ISO/IEC 14496-2 or Rec. ITU-T H.264 | ISO/IEC 14496-10 video stream number xxxx 1111 0000 3 ECM_stream 1111 0001 3 EMM_stream 1111 0010 5 Rec. ITU-T H.222.0 | ISO/IEC 13818-1 Annex A or ISO/IEC 13818-6_DSMCC_

47、stream 1111 0011 2 ISO/IEC_13522_stream 1111 0100 6 Rec. ITU-T H.222.1 type A 1111 0101 6 Rec. ITU-T H.222.1 type B 1111 0110 6 Rec. ITU-T H.222.1 type C 1111 0111 6 Rec. ITU-T H.222.1 type D 1111 1000 6 Rec. ITU-T H.222.1 type E 1111 1001 7 ancillary_stream 1111 1010 ISO/IEC14496-1_SL-packetized_st

48、ream 1111 1011 ISO/IEC14496-1_FlexMux_stream 1111.1100 metadata stream 1111.1101 8 extended_stream_id 1111 1110 reserved data stream 1111 1111 4 program_stream_directory ISO/IEC 13818-1:2015/Amd.1:2015 (E) 4 Rec. ITU-T H.222.0 (2014)/Amd.1 (04/2015) stream_id Note stream coding The notation x means

49、that the values 0 or 1 are both permitted and results in the same stream type. The stream number is given by the values taken by the xs. NOTE 1 PES packets of type program_stream_map have unique syntax specified in 2.5.4.1. NOTE 2 PES packets of type private_stream_1 and ISO/IEC_13552_stream follow the same PES packet synt