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.264.2 TELECOMMUNICATION STANDARDIZATION SECTOR OF ITU (02/2016) SERIES H: AUDIOVISUAL AND MULTIMEDIA SYSTEMS Infrastructure of audiovisual services Coding of moving video Reference software for ITU-T H.264 advanced video
2、coding Recommendation ITU-T H.264.2 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 aspects H.230H.239 C
3、ommunication 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 for audiovisua
4、l 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 services H.510H.51
5、9 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 collaboration inter-wo
6、rking 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 SERVICES AND APPLIC
7、ATIONS 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 Signage H.780H.789
8、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 ITU-T Recomme
9、ndations. Rec. ITU-T H.264.2 (02/2016) i Recommendation ITU-T H.264.2 Reference software for ITU-T H.264 advanced video coding Summary Recommendation ITU-T H.264.2 provides accompanying reference software for Rec. ITU-T H.264 | ISO/IEC 14496-10 as an electronic attachment. The software is an integra
10、l part of Rec. ITU-T H.264.2. The purpose of this Recommendation is to provide the following. Reference decoder software capable of decoding bitstreams that conform to Rec. ITU-T H.264 | ISO/IEC 14496-10 in a manner that conforms to the decoding process specified in Rec. ITU-T H.264 | ISO/IEC 14496-
11、10. Reference encoder software capable of producing bitstreams that conform to Rec. ITU-T H.264 | ISO/IEC 14496-10. The use of this reference software is not required for making an implementation of an encoder or decoder in conformance to Rec. ITU-T H.264 | ISO/IEC 14496-10. Requirements established
12、 in Rec. ITU-T H.264 | ISO/IEC 14496-10 take precedence over the behaviour of the reference software. The edition approved in 2009-05 incorporated changes made to the reference software for Rec. ITU-T H.264 | ISO/IEC 14496-10 advanced video coding. The changes contain improvements of encoder compres
13、sion capability, bug fixes, speed and memory resource usage improvements, restructuring of the software for readability and ease of software maintenance, and the addition of support for new profiles of ITU-T H.264. The new profiles are from the set of profiles targeting professional applications tha
14、t were added to Rec. ITU-T H.264 | ISO/IEC 14496-10 in 2007. No changes were made to the text of the Recommendation. The edition approved in 2010-06 contained improvements of encoder compression capability, bug fixes, speed and memory resource usage improvements, restructuring of the software for re
15、adability and ease of software maintenance. In addition, this edition includes support for the Scalable Baseline, Scalable High, Scalable High Intra, Multiview High, and Stereo High profiles. The support for the scalable profiles specified in Annex G of Rec. ITU-T H.264 | ISO/IEC 14496-10 (Scalable
16、Baseline, Scalable High, and Scalable High Intra) and the support for the multiview profiles specified in Annex H of Rec. ITU-T H.264 | ISO/IEC 14496-10 (Multiview High and Stereo High) are provided in separate software solutions. The edition approved in 2012-01 only introduced changes to the refere
17、nce software of Recommendation ITU-T H.264.2 (the text is the same as of the edition approved 2010-06). The changes in the reference software improve the encoder compression capability, fix bugs, and improve speed and memory resource usage. The software was also restructured for better readability a
18、nd ease of maintenance. The edition approved in 2014-07 contains bug fixes for the profiles specified in Annex A of Rec. ITU-T H.264 | ISO/IEC 14496-10. In addition, the edition includes support for the MFC High profile specified in Annex H of Rec. ITU-T H.264 | ISO/IEC 14496-10, support for the Mul
19、tiview Depth High profile specified in Annex I of Rec. ITU-T H.264 | ISO/IEC 14496-10, and support for the Enhanced Multiview Depth High profile specified in Annex J of Rec. ITU-T H.264 | ISO/IEC 14496-10, which are provided in separate software packages. This edition includes support for the MFC De
20、pth High profile, which was included in the MFC plus Depth extension in ITU-T H.264 V10. It also includes miscellaneous minor improvements and bug fixes relative to the prior approved version. This Recommendation was developed jointly with ISO/IEC JTC 1/SC 29/WG 11 (MPEG) and corresponds to part of
21、ISO/IEC 14496-5, up to and including ISO/IEC 14496-5:2001 Amendment 39. History Edition Recommendation Approval Study Group Unique ID* 1.0 ITU-T H.264.2 2005-03-01 16 11.1002/1000/7826 1.1 ITU-T H.264.2 (2005) Cor. 1 2005-10-22 16 11.1002/1000/8574 2.0 ITU-T H.264.2 2008-06-13 16 11.1002/1000/9487 3
22、0 ITU-T H.264.2 2010-06-22 16 11.1002/1000/10637 4.0 ITU-T H.264.2 2012-01-13 16 11.1002/1000/11468 5.0 ITU-T H.264.2 2015-02-20 16 11.1002/1000/12295 6.0 ITU-T H.264.2 2016-02-13 16 11.1002/1000/12644 _ * To access the Recommendation, type the URL http:/handle.itu.int/ in the address field of your
23、 web browser, followed by the Recommendations unique ID. For example, http:/handle.itu.int/11.1002/1000/11830-en. ii Rec. ITU-T H.264.2 (02/2016) FOREWORD The International Telecommunication Union (ITU) is the United Nations specialized agency in the field of telecommunications, information and comm
24、unication 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. T
25、he 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 ITU-T Recommendations is covered by the procedure laid down in WTSA Resolution
26、 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 used for conciseness to indicate both a telecommunication administration and a
27、 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 the Recommendation is achieved when all of these mandatory provisions are met.
28、 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 of any party. INTELLECTUAL PROPERTY RIGHTSITU draws attention to the possibili
29、ty 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 Property Rights, whether asserted by ITU members or others outside of the Recom
30、mendation 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, implementers are cautioned that this may not represent the latest information and
31、 are therefore strongly urged to consult the TSB patent database at http:/www.itu.int/ITU-T/ipr/. ITU 2016 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.264.2 (02/2016) iii CONTENTS Page 0.1 Purp
32、ose iv 0.2 Examples of use iv 0.3 Warranty disclaimer v 1 Scope 1 2 References 1 2.1 Normative references 1 2.2 Additional references 1 3 Definitions 1 4 Abbreviations . 2 5 Conventions 2 6 Reference software for Rec. ITU-T H.264 | ISO/IEC 14496-10 2 Electronic attachment: ITU-T H.264 reference soft
33、ware iv Rec. ITU-T H.264.2 (02/2016) Introduction* This Recommendation provides accompanying reference software for Rec. ITU-T H.264 | ISO/IEC 14496-10 advanced video coding. The reference software includes both encoder and decoder functionality. Reference software is useful in aiding users of a vid
34、eo coding standard to establish and test conformance and interoperability, and to educate users and demonstrate the capabilities of the standard. For these purposes, the accompanying software is provided as an aid for the study and implementation of Rec. ITU-T H.264 | ISO/IEC 14496-10 advanced video
35、 coding. The software has been jointly developed by ITU-T Video Coding Experts Group (VCEG) and the ISO/IEC Moving Picture Experts Group (MPEG). 0.1 Purpose The purpose of this Recommendation is to provide the following: Reference decoder software capable of decoding bitstreams that conform to Rec.
36、ITU-T H.264 | ISO/IEC 14496-10 in a manner that conforms to the decoding process specified in Rec. ITU-T H.264 | ISO/IEC 14496-10. Reference encoder software capable of producing bitstreams that conform to Rec. ITU-T H.264 | ISO/IEC 14496-10. 0.2 Examples of use Some examples of uses that may be app
37、ropriate for the reference decoder software are as follows: As an illustration of how to perform the decoding process specified in Rec. ITU-T H.264 | ISO/IEC 14496-10. As the starting basis for the implementation of a decoder that conforms to Rec. ITU-T H.264 | ISO/IEC 14496-10. For testing the conf
38、ormance of a decoder implementation with the decoding process specified in Rec. ITU-T H.264 | ISO/IEC 14496-10 (as the values of the samples in all decoded pictures and the relative ordering of those pictures will be identical from all conforming decoder implementations that support the profile and
39、level used in a bitstream that conforms to Rec. ITU-T H.264 | ISO/IEC 14496-10). For testing the conformance of a bitstream to the constraints specified for bitstream conformance in Rec. ITU-T H.264 | ISO/IEC 14496-10, as the software can detect and report many bitstream conformance violations. NOTE
40、 1 However, the lack of the detection of any conformance violation by the reference decoder software should not be considered as definitive proof that the bitstream conforms to all constraints specified for bitstream conformance in Rec. ITU-T H.264 | ISO/IEC 14496-10. Some examples of uses that may
41、be appropriate for the reference encoder software are as follows: As an illustration of how to perform an encoding process that produces bitstreams that conform to the constraints specified for bitstream conformance in Rec. ITU-T H.264 | ISO/IEC 14496-10. As the starting basis for the implementation
42、 of an encoder that conforms to Rec. ITU-T H.264 | ISO/IEC 14496-10. As a means of generating bitstreams for testing the conformance of a decoder implementation with the decoding process specified in Rec. ITU-T H.264 | ISO/IEC 14496-10. As a means of evaluating and demonstrating examples of the qual
43、ity that can be achieved by an encoding process that conforms to Rec. ITU-T H.264 | ISO/IEC 14496-10. NOTE 2 However, no guarantee of the quality that will be achieved by an encoder is provided by its conformance to Rec. ITU-T H.264 | ISO/IEC 14496-10, as the conformance of an encoder to Rec. ITU-T
44、H.264 | ISO/IEC 14496-10 is defined only in terms of format constraints imposed on the bitstream syntax. Thus, while the reference encoder software may suffice to provide some illustrative examples of what quality can be achieved in conformance to Rec. ITU-T H.264 | ISO/IEC 14496-10, it provides nei
45、ther an assurance of minimum guaranteed video encoding quality nor maximum achievable video encoding quality. _ * This introduction does not form an integral part of this Recommendation. Rec. ITU-T H.264.2 (02/2016) v 0.3 Warranty disclaimer Regardless of any and all statements made herein or elsewh
46、ere regarding the possible uses of the reference software, the following disclaimers of warranty apply to the provided reference software. ITU disclaims any and all warranties, whether express, implied, or statutory, including any implied warranties of merchantability or of fitness for a particular
47、purpose. In no event shall the contributor(s) or ITU be liable for any incidental, punitive, or consequential damages of any kind whatsoever arising from the use of these programs. This disclaimer of warranty extends to the user of these programs and users customers, employees, agents, transferees,
48、successors, and assignees. ITU does not represent or warrant that the programs furnished hereunder are free of infringement of any third-party patents. Commercial implementations of ITU-T Recommendations, including shareware, may be subject to royalty fees to patent holders. Information regarding th
49、e common patent policy for ITU-T/ITU-R/ISO/IEC is available from the ITU website at http:/itu.int/ITU-T/dbase/patent/patent-policy.html. Rec. ITU-T H.264.2 (02/2016) 1 Recommendation ITU-T H.264.2 Reference software for ITU-T H.264 advanced video coding 1 Scope This Recommendation provides accompanying reference software for Rec. ITU-T H.264 | ISO/IEC 14496-10 as an electronic attachment. The software is an integral part of this Recommendation. The use of this r
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