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.265.1 TELECOMMUNICATION STANDARDIZATION SECTOR OF ITU (10/2016) SERIES H: AUDIOVISUAL AND MULTIMEDIA SYSTEMS Infrastructure of audiovisual services Coding of moving video Conformance specification for ITU-T H.265 high eff
2、iciency video coding Recommendation ITU-T H.265.1 ITU-T H-SERIES RECOMMENDATIONS AUDIOVISUAL AND MULTIMEDIA SYSTEMS CHARACTERISTICS OF VISUAL TELEPHONE SYSTEMS H.100H.199 INFRASTRUCTURE OF AUDIOVISUAL SERVICES General H.200H.219 Transmission multiplexing and synchronization H.220H.229 Systems aspect
3、s 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.300H.349 Directory services architecture for audiovisual and multimedia services H.350H.359 Quality of service architecture
4、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 Mobility and Collaboration, definitions, protocols and procedures H.500H.509 Mobility for H-Series multimedia systems and serv
5、ices 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 multimedia collaboration applications and services H.540H.549 Mobility interworking procedures H.550H.559 Mobile multimedia collabor
6、ation inter-working procedures H.560H.569 BROADBAND, TRIPLE-PLAY AND ADVANCED MULTIMEDIA SERVICES Broadband multimedia services over VDSL H.610H.619 Advanced multimedia services and applications H.620H.629 Ubiquitous sensor network applications and Internet of Things H.640H.649 IPTV MULTIMEDIA SERVI
7、CES 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.750H.759 IPTV multimedia application frameworks H.760H.769 IPTV service discovery up to consumption H.770H.779 Digital Signa
8、ge H.780H.789 E-HEALTH MULTIMEDIA SERVICES AND APPLICATIONS Personal health systems H.810H.819 Interoperability compliance testing of personal health systems (HRN, PAN, LAN, TAN and WAN) H.820H.859 Multimedia e-health data exchange services H.860H.869 For further details, please refer to the list of
9、 ITU-T Recommendations. Rec. ITU-T H.265.1 (10/2016) i Recommendation ITU-T H.265.1 Conformance specification for ITU-T H.265 high efficiency video coding Summary Recommendation ITU-T H.265.1 “Conformance specification for ITU-T H.265 high efficiency video coding“ specifies tests for (non-exhaustive
10、) testing to verify whether bitstreams and decoders meet the normative requirements specified in Rec. ITU-T H.265 | ISO/IEC 23008-2. The bitstreams provided in this Recommendation correspond to the 04-2013 version of Rec. ITU-T H.265 | ISO/IEC 23008-2. The second version of this specification added
11、tests for the format range and high throughput extensions (RExt), scalable extensions (SHVC), multi-view extensions (MV-HEVC), and 3D extensions (3D-HEVC), and includes some additional tests and minor corrections to the tests specified for the prior profiles. This Recommendation was developed jointl
12、y with ISO/IEC JTC 1/SC 29/WG 11 (MPEG) and corresponds in a technically aligned manner to ISO/IEC 23008-8. The conformance bitstreams needed for this Recommendation are available at the following link: http:/handle.itu.int/11.1002/2000/12297. History Edition Recommendation Approval Study Group Uniq
13、ue ID* 1.0 ITU-T H.265.1 2014-10-14 16 11.1002/1000/12297 2.0 ITU-T H.265.1 2016-10-29 16 11.1002/1000/12906 Keywords Conformance bitstream, conformance specification, high efficiency video coding. _ * To access the Recommendation, type the URL http:/handle.itu.int/ in the address field of your web
14、browser, followed by the Recommendations unique ID. For example, http:/handle.itu.int/11.1002/1000/11830-en. ii Rec. ITU-T H.265.1 (10/2016) FOREWORD The International Telecommunication Union (ITU) is the United Nations specialized agency in the field of telecommunications, information and communica
15、tion 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 on them with a view to standardizing telecommunications on a worldwide basis. The Wo
16、rld 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 ITU-T Recommendations is covered by the procedure laid down in WTSA Resolution 1. I
17、n 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 used for conciseness to indicate both a telecommunication administration and a reco
18、gnized 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 the Recommendation is achieved when all of these mandatory provisions are met. The
19、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 of any party. INTELLECTUAL PROPERTY RIGHTSITU draws attention to the possibility th
20、at 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 Property Rights, whether asserted by ITU members or others outside of the Recommenda
21、tion development process. As of the date of approval of this Recommendation, ITU had not received notice of intellectual property, protected by patents, which may be required to implement this Recommendation. However, implementers are cautioned that this may not represent the latest information and
22、are therefore strongly urged to consult the TSB patent database at http:/www.itu.int/ITU-T/ipr/. ITU 2017 All rights reserved. No part of this publication may be reproduced, by any means whatsoever, without the prior written permission of ITU. Rec. ITU-T H.265.1 (10/2016) iii CONTENTS Page 1 Scope 1
23、 2 Normative references 1 2.1 General 1 2.2 Identical Recommendations | International Standards 1 2.3 Paired Recommendations | International Standards equivalent in technical content . 1 2.4 Additional references 1 3 Definitions 1 4 Abbreviations and acronyms 2 5 Conventions 2 6 Conformance testing
24、for ITU-T H.265 | ISO/IEC 23008-2 2 6.1 Introduction . 2 6.2 Bitstream conformance . 2 6.3 Decoder conformance . 2 6.4 Procedure to test bitstreams . 2 6.5 Procedure to test decoder conformance . 3 6.6 Specification of the test bitstreams 5 6.7 Normative conformance test suites for Rec. ITU-T H.265
25、| ISO/IEC 23008-2. 85 Rec. ITU-T H.265.1 (10/2016) 1 Recommendation ITU-T H.265.1 Conformance specification for ITU-T H.265 high efficiency video coding 1 Scope This Recommendation | International Standard1 specifies a set of tests and procedures designed to indicate whether encoders or decoders mee
26、t the normative requirements specified in Rec. ITU-T H.265 | ISO/IEC 23008-2. 2 Normative references 2.1 General The following Recommendations and International Standards contain provisions which, through reference in this text, constitute provisions of this Recommendation | International Standard.
27、At the time of publication, the editions indicated were valid. All Recommendations and Standards are subject to revision, and parties to agreements based on this Recommendation | International Standard are encouraged to investigate the possibility of applying the most recent edition of the Recommend
28、ations and Standards listed below. Members of IEC and ISO maintain registers of currently valid International Standards. The Telecommunication Standardization Bureau of the ITU maintains a list of currently valid ITU-T Recommendations. 2.2 Identical Recommendations | International Standards None. 2.
29、3 Paired Recommendations | International Standards equivalent in technical content Recommendation ITU-T H.265 (in force), High efficiency video coding. ISO/IEC 23008-2: in force, Information technology High efficiency video coding and media delivery in heterogeneous environment Part 2: High Efficien
30、cy Video Coding. Recommendation ITU-T H.265.2 (in force), High efficiency coding reference software. ISO/IEC 23008-5: in force, Information technology High efficiency video coding and media delivery in heterogeneous environment Part 2: High Efficiency Video Coding Reference Software. 2.4 Additional
31、references None. 3 Definitions For the purposes of this Recommendation | International Standard, the terms, definitions, abbreviations and symbols specified in Rec. ITU-T H.265 | ISO/IEC 23008-2 (particularly in clause 3) apply. The following terms are further clarified for purposes herein as follow
32、s. 3.1 bitstream: A Rec. ITU-T H.265 | ISO/IEC 23008-2 video bitstream. 3.2 decoder: A Rec. ITU-T H.265 | ISO/IEC 23008-2 video decoder, i.e., an embodiment of the decoding process specified by Rec. ITU-T H.265 | ISO/IEC 23008-2. The decoder does not include the display process, which is outside the
33、 scope of this Recommendation | International Standard. 3.3 encoder: An embodiment of a process, not specified in this Recommendation | International Standard (except in regard to identification of the reference software encoder), that produces a bitstream. 3.4 reference software decoder: The softwa
34、re decoder provided in Rec. ITU-T H.265.2 | ISO/IEC 23008-5. 3.5 reference software encoder: The software encoder provided in Rec. ITU-T H.265.2 | ISO/IEC 23008-5. _ 1 This Recommendation | International Standard includes an electronic attachment containing the conformance bitstreams identified with
35、in the text. The conformance bitstreams needed for this Recommendation are available at the following link:http:/handle.itu.int/11.1002/2000/12297. The bitstreams can also be downloaded from the ITU-T Test Signal Database. 2 Rec. ITU-T H.265.1 (10/2016) 4 Abbreviations and acronyms For the purposes
36、of this Recommendation | International Standard, relevant abbreviations and acronyms are specified in clause 4 of Rec. ITU-T H.265 | ISO/IEC 23008-2. 5 Conventions For the purposes of this Recommendation | International Standard, relevant conventions are specified in clause 5 of Rec. ITU-T H.265 | I
37、SO/IEC 23008-2. 6 Conformance testing for ITU-T H.265 | ISO/IEC 23008-2 6.1 Introduction The following clauses specify normative tests for verifying conformance of video bitstreams as well as decoders. Those normative tests make use of test data (bitstream test suites) provided as an electronic anne
38、x to this Recommendation | International Standard and the reference software decoder specified in Rec. ITU-T H.265.2 | ISO/IEC 23008-5. 6.2 Bitstream conformance Bitstream conformance for Rec. ITU-T H.265 | ISO/IEC 23008-2 is specified by clause C.4 of Rec. ITU-T H.265 | ISO/IEC 23008-2. 6.3 Decoder
39、 conformance Decoder conformance for Rec. ITU-T H.265 | ISO/IEC 23008-2 is specified by clause C.5 of Rec. ITU-T H.265 | ISO/IEC 23008-2. 6.4 Procedure to test bitstreams A bitstream that claims conformance with Rec. ITU-T H.265 | ISO/IEC 23008-2 shall pass the following normative test. The bitstrea
40、m shall be decoded by processing it with the reference software decoder. When processed by the reference software decoder, the bitstream shall not cause any error or non-conformance messages to be reported by the reference software decoder. This test should not be applied to bitstreams that are know
41、n to contain errors introduced by transmission, as such errors are highly likely to result in bitstreams that lack conformance to Rec. ITU-T H.265 | ISO/IEC 23008-2. Successfully passing the reference software decoder test provides only a strong presumption that the bitstream under test is conformin
42、g to the video layer, i.e., that it does indeed meet all the requirements for the video layer (except Annexes C, D and E) specified in Rec. ITU-T H.265 | ISO/IEC 23008-2 that are tested by the reference software decoder. Additional tests may be necessary to more thoroughly check that the bitstream p
43、roperly meets all the requirements specified in Rec. ITU-T H.265 | ISO/IEC 23008-2 including the hypothetical reference decoder (HRD) conformance (based on Annexes C, D and E). These complementary tests may be performed using other video bitstream verifiers that perform more complete tests than thos
44、e implemented by the reference software decoder. Rec. ITU-T H.265 | ISO/IEC 23008-2 contains several informative recommendations that are not an integral part of that Recommendation | International Standard. When testing a bitstream for conformance, it may also be useful to test whether or not the b
45、itstream follows those recommendations. To check correctness of a bitstream, it is necessary to parse the entire bitstream and to extract all the syntax elements and other values derived from those syntactic elements and used by the decoding process specified in Rec. ITU-T H.265 | ISO/IEC 23008-2. A
46、 verifier may not necessarily perform all stages of the decoding process specified in Rec. ITU-T H.265 | ISO/IEC 23008-2 in order to verify bitstream correctness. Many tests can be performed on syntax elements in a state prior to their use in some processing stages. Rec. ITU-T H.265.1 (10/2016) 3 6.
47、5 Procedure to test decoder conformance 6.5.1 Conformance bitstreams A bitstream has values of general_profile_idc, general_tier_flag, and general_level_idc corresponding to a set of specified constraints on a bitstream for which a decoder conforming to a specified profile, tier, and level is requir
48、ed in Annex A of Rec. ITU-T H.265 | ISO/IEC 23008-2 to properly perform the decoding process. 6.5.2 Contents of the bitstream file The conformance bitstreams are included in this Recommendation | International Standard as an electronic attachment. The following information is included in a single zi
49、pped file for each such bitstream. bitstream; decoded pictures or hashes of decoded pictures (may not be present); short description of the bitstream; trace file (results while decoding the bitstream, in ASCII format). In cases where the decoded pictures or hashes of decoded pictures are not available, the reference software decoder shall be used to generate the necessary reference decoded pictures from the bitstream. 6.5.3 Requirements on output of the decoding process and
