ISO IEC 23008-2 AMD 1-2015 Information technology - High efficiency coding and media delivery in heterogeneous environments - Part 2 High efficiency video codin.pdf

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1、Information technology High efficiency coding and media delivery in heterogeneous environments Part 2: High efficiency video codingAMENDMENT 1: 3D video extensionsTechnologies de linformation Codage haute efficacit et livraison des medias dans des environnements htrognes Partie 2: Codage vido haute

2、efficacitAMENDEMENT 1: Extensions vido 3DINTERNATIONAL STANDARDISO/IEC23008-2Second edition2015-05-01Reference numberISO/IEC 23008-2:2015/Amd.1:2015(E)AMENDMENT 12015-10-01 ISO/IEC 2015ii ISO/IEC 2015 All rights reservedCOPYRIGHT PROTECTED DOCUMENT ISO/IEC 2015, Published in SwitzerlandAll rights re

3、served. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior written permission. Permission can be requested from either

4、ISO at the address below or ISOs member body in the country of the requester.ISO copyright officeCh. de Blandonnet 8 CP 401CH-1214 Vernier, Geneva, SwitzerlandTel. +41 22 749 01 11Fax +41 22 749 09 47copyrightiso.orgwww.iso.orgISO/IEC 23008-2:2015/Amd.1:2015(E)ISO/IEC 23008-2:2015/Amd 1:2015 (E) Dra

5、ft Rec. ITU-T H.265 (2015 E) iii CONTENTS Page Annex I 3D high efficiency video coding 5 I.1 Scope 5 I.2 Normative references 5 I.3 Definitions 5 I.4 Abbreviations 5 I.5 Conventions 5 I.6 Bitstream and picture formats, partitionings, scanning processes, and neighbouring relationships . 6 I.6.1 Bitst

6、ream formats 6 I.6.2 Source, decoded, and output picture formats 6 I.6.3 Partitioning of pictures, slices, slice segments, tiles, coding tree units, and coding tree blocks . 6 I.6.4 Availability processes . 6 I.6.5 Scanning processes . 6 I.6.6 Derivation process for a wedgelet partition pattern tabl

7、e 6 I.6.6.1 Wedgelet partition pattern generation process 7 I.6.6.2 Wedgelet partition pattern table insertion process 7 I.7 Syntax and semantics 8 I.7.1 Method of specifying syntax in tabular form 8 I.7.2 Specification of syntax functions, categories, and descriptors 8 I.7.3 Syntax in tabular form

8、8 I.7.3.1 NAL unit syntax . 8 I.7.3.2 Raw byte sequence payloads and RBSP trailing bits syntax 8 I.7.3.3 Profile, tier and level syntax . 13 I.7.3.4 Scaling list data syntax . 13 I.7.3.5 Supplemental enhancement information message syntax . 13 I.7.3.6 Slice segment header syntax . 13 I.7.3.7 Short-t

9、erm reference picture set syntax 16 I.7.3.8 Slice segment data syntax . 17 I.7.4 Semantics 21 I.7.4.1 General 21 I.7.4.2 NAL unit semantics 21 I.7.4.3 Raw byte sequence payloads, trailing bits, and byte alignment semantics . 21 I.7.4.4 Profile, tier and level semantics 27 I.7.4.5 Scaling list data s

10、emantics 27 I.7.4.6 Supplemental enhancement information message semantics 27 I.7.4.7 Slice segment header semantics 28 I.7.4.8 Short-term reference picture set semantics . 31 I.7.4.9 Slice segment data semantics 31 I.8 Decoding process 36 I.8.1 General decoding process . 36 I.8.1.1 General 36 I.8.1

11、.2 Decoding process for a coded picture with nuh_layer_id greater than 0 36 I.8.2 NAL unit decoding process. 36 I.8.3 Slice decoding process 36 I.8.3.1 Derivation process for the candidate picture list for disparity vector derivation 36 I.8.3.2 Derivation process for the default reference view order

12、 index for disparity derivation 37 I.8.3.3 Derivation process for a depth look-up table 37 I.8.3.4 Derivation process for the alternative target reference index for temporal motion vector prediction in merge mode 38 I.8.3.5 Derivation process for the target reference index for residual prediction .

13、38 I.8.4 Decoding process for coding units coded in intra prediction mode 38 I.8.4.1 General decoding process for coding units coded in intra prediction mode . 38 I.8.4.2 Derivation process for luma intra prediction mode . 39 I.8.4.3 Derivation process for chroma intra prediction mode . 40 I.8.4.4 D

14、ecoding process for intra blocks . 40 I.8.5 Decoding process for coding units coded in inter prediction mode 46 ISO/IEC 2015 All rights reservedISO/IEC 23008-2:2015/Amd 1:2015 (E) iv Draft Rec. ITU-T H.265 (2015 E) I.8.5.1 General decoding process for coding units coded in inter prediction mode . 46

15、 I.8.5.2 Inter prediction process . 47 I.8.5.3 Decoding process for prediction units in inter prediction mode . 47 I.8.5.4 Decoding process for the residual signal of coding units coded in inter prediction mode 75 I.8.5.5 Derivation process for a disparity vector for texture layers 76 I.8.5.6 Deriva

16、tion process for a disparity vector for depth layers 78 I.8.5.7 Derivation process for a depth or disparity sample array from a depth picture 78 I.8.6 Scaling, transformation and array construction process prior to deblocking filter process . 80 I.8.7 In-loop filter process . 80 I.9 Parsing process

17、. 80 I.9.1 General 80 I.9.2 Parsing process for 0-th order Exp-Golomb codes . 80 I.9.3 CABAC parsing process for slice segment data . 80 I.9.3.1 General 80 I.9.3.2 Initialization process . 80 I.9.3.3 Binarization process 83 I.9.3.4 Decoding process flow 85 I.9.3.5 Arithmetic encoding process (inform

18、ative) 87 I.10 Specification of bitstream subsets . 87 I.11 Profiles, tiers, and levels . 87 I.11.1 Profiles 87 I.11.1.1 3D Main profile 87 I.11.2 Tiers and levels . 89 I.11.3 Decoder capabilities 89 I.12 Byte stream format 89 I.13 Hypothetical reference decoder 89 I.14 Supplemental enhancement info

19、rmation . 89 I.14.1 General 89 I.14.2 SEI payload syntax . 89 I.14.2.1 General SEI payload syntax 89 I.14.2.2 Annex D, Annex F, and Annex G SEI message syntax for 3D high efficiency video coding 89 I.14.2.3 Alternative depth information SEI message syntax 89 I.14.3 SEI payload semantics 91 I.14.3.1

20、General SEI payload semantics 91 I.14.3.2 Annex D, Annex F, and Annex G SEI message semantics for 3D high efficiency video coding . 91 I.14.3.3 Alternative depth information SEI message semantics . 91 I.15 Video usability information 97 LIST OF TABLES Table I.1 Name association to prediction mode an

21、d partitioning type 33 Table I.2 Specification of intra prediction mode and associated names 39 Table I.3 Specification of divCoeff depending on sDenomDiv 67 Table I.4 Association of ctxIdx and syntax elements for each initializationType in the initialization process 81 Table I.5 Values of initValue

22、 for skip_intra_flag ctxIdx 81 Table I.6 Values of initValue for no_dim_flag ctxIdx 81 Table I.7 Values of initValue for depth_intra_mode_idx_flag ctxIdx 81 Table I.8 Values of initValue for skip_intra_mode_idx ctxIdx 81 Table I.9 Values of initValue for dbbp_flag ctxIdx 82 Table I.10 Values of init

23、Value for dc_only_flag ctxIdx 82 Table I.11 Values of initValue for iv_res_pred_weight_idx ctxIdx 82 Table I.12 Values of initValue for illu_comp_flag ctxIdx 82 Table I.13 Values of initValue for depth_dc_present_flag ctxIdx 82 Table I.14 Values of initValue for depth_dc_abs ctxIdx 82 ISO/IEC 2015 A

24、ll rights reservedISO/IEC 23008-2:2015/Amd 1:2015 (E) Draft Rec. ITU-T H.265 (2015 E) v Table I.15 Syntax elements and associated binarizations 83 Table I.16 Binarization for part_mode 84 Table I.17 Assignment of ctxInc to syntax elements with context coded bins 86 Table I.18 Specification of ctxInc

25、 using left and above syntax elements 86 Table I.19 Persistence scope of SEI messages (informative) 91 Table I.20 Interpretation of depth_type 92 Table I.21 Locations of the top-left luma samples of constituent pictures packed in a picture with ViewIdx greater than 0 relative to the top-left luma sa

26、mple of this picture 92 ISO/IEC 2015 All rights reservedISO/IEC 23008-2:2015/Amd 1:2015 (E) Information technology High efficiency coding and media delivery in heterogeneous environments Part 2: High efficiency video coding Amendment 1 Introduction Replace the text of 0.2 with the following: As the

27、costs for both processing power and memory have reduced, network support for coded video data has diversified, and advances in video coding technology have progressed, the need has arisen for an industry standard for compressed video representation with substantially increased coding efficiency and

28、enhanced robustness to network environments. Toward these ends the ITU-T Video Coding Experts Group (VCEG) and the ISO/IEC Moving Picture Experts Group (MPEG) formed a Joint Collaborative Team on Video Coding (JCT-VC) in 2010 and a Joint Collaborative Team on 3D Video Coding Extension Development (J

29、CT-3V) in 2012 for development of a new Recommendation | International Standard. This Recommendation | International Standard was developed in the JCT-VC and the JCT-3V. In 0.3 add the following sentence to the end of the clause: Support for 3D enables joint representation of video content and depth

30、 information with multiple camera views. In 0.5 add the following paragraph to the end of the clause: Rec. ITU-T H.265 | ISO/IEC 23008-2 version 3 refers to the integrated text containing 3D extensions, additional supplement enhancement information, and corrections to various minor defects in the pr

31、ior content of the specification. In 0.8, replace “Annexes A through H“ with “Annexes A through I“. In 0.8, add the following sentence after the sentence that starts with “Annex H“: Annex I contains support for 3D coding. Sequence parameter set RBSP In 7.3.2.2.1 and F.7.3.2.2.1 replace the row conta

32、ining “if( sps_extension_present_flag )“ and all following rows in the syntax table by the following: if( sps_extension_present_flag ) sps_range_extension_flag u(1) sps_multilayer_extension_flag u(1) sps_3d_extension_flag u(1) sps_extension_5bits u(5) if( sps_range_extension_flag ) sps_range_extensi

33、on( ) if( sps_multilayer_extension_flag ) sps_multilayer_extension( ) /* specified in Annex F */ if( sps_3d_extension_flag ) sps_3d_extension( ) /* specified in Annex I */ if( sps_extension_5bits ) while( more_rbsp_data( ) ) sps_extension_data_flag u(1) rbsp_trailing_bits( ) ISO/IEC 2015 All rights

34、reserved 1 ISO/IEC 23008-2:2015/Amd 1:2015 (E) 2 Draft Rec. ITU-T H.265 (2015 E) In 7.4.3.2.1 replace the semantics of sps_extension_present_flag with the following semantics: sps_extension_present_flag equal to 1 specifies that the syntax elements sps_range_extension_flag, sps_multilayer_extension_

35、flag, sps_3d_extension_flag, and sps_extension_5bits are present in the SPS RBSP syntax structure. sps_extension_present_flag equal to 0 specifies that these syntax elements are not present. In 7.4.3.2.1 add the following semantics after semantics of sps_multilayer_extension_flag: sps_3d_extension_f

36、lag equal to 1 specifies that the sps_3d_extension( ) syntax structure (specified in Annex I) is present in the SPS RBSP syntax structure. sps_3d_extension_flag equal to 0 specifies that the sps_3d_extension( ) syntax structure is not present. When not present, the value of sps_3d_extension_flag is

37、inferred to be equal to 0. In 7.4.3.2.1 replace all occurrences of “sps_extension_6bits“ with “sps_extension_5bits“. Picture parameter set RBSP In 7.3.2.3.1 replace the row containing “if( pps_extension_present_flag )“ and all following rows in the syntax table with the following: if( pps_extension_

38、present_flag ) pps_range_extension_flag u(1) pps_multilayer_extension_flag u(1) pps_3d_extension_flag u(1) pps_extension_5bits u(5) if( pps_range_extension_flag ) pps_range_extension( ) if( pps_multilayer_extension_flag ) pps_multilayer_extension( ) /* specified in Annex F */ if( pps_3d_extension_fl

39、ag ) pps_3d_extension( ) /* specified in Annex I */ if( pps_extension_5bits ) while( more_rbsp_data( ) ) pps_extension_data_flag u(1) rbsp_trailing_bits( ) In 7.4.3.3.1 replace the semantics of pps_extension_present_flag with the following semantics: pps_extension_present_flag equal to 1 specifies t

40、hat the syntax elements pps_range_extension_flag, pps_multilayer_extension_flag, pps_3d_extension_flag, and pps_extension_5bits are present in the picture parameter set RBSP syntax structure. pps_extension_present_flag equal to 0 specifies that these syntax elements are not present. In 7.4.3.3.1 add

41、 the following semantics after semantics of pps_multilayer_extension_flag: pps_3d_extension_flag equal to 1 specifies that the pps_3d_extension( ) syntax structure (specified in Annex I) is present in the PPS RBSP syntax structure. pps_3d_extension_flag equal to 0 specifies that the pps_3d_extension

42、( ) syntax structure is not present. When not present, the value of pps_3d_extension_flag is inferred to be equal to 0. In 7.4.3.3.1 replace all occurrences of “pps_extension_6bits“ with “pps_extension_5bits“. General SEI message syntax In D.2.1 add the following rows to the syntax table after the r

43、ow containing “multiview_view_position( payloadSize ) /* specified in Annex G */“: else if( payloadType = = 181 ) alternative_depth_info( payloadSize ) /* specified in Annex I */ ISO/IEC 2015 All rights reservedISO/IEC 23008-2:2015/Amd 1:2015 (E) Draft Rec. ITU-T H.265 (2015 E) Common decoding proce

44、ss for a coded picture In F.8.1.3 add the following paragraph before the paragraph starting with “After all slices of the current picture have been decoded,“: Otherwise, general_profile_idc in the profile_tier_level( ) syntax structure VpsProfileTierLevel profile_tier_level_idx TargetOlsIdx lIdx is

45、equal to 8, the decoding process for the current picture takes as inputs the syntax elements and upper-case variables from clause I.7 and the decoding process of clause I.8.1.2 is invoked. Video parameter set RBSP semantics In F.7.4.3.1 replace the semantics of vps_extension2_flag with the following

46、 semantics: vps_extension2_flag equal to 0 specifies that no vps_extension_data_flag syntax elements are present in the VPS RBSP syntax structure. vps_extension2_flag equal to 1 specifies vps_extension_data_flag syntax elements are present in the VPS RBSP syntax structure. Decoders conforming to a p

47、rofile specified in Annexes A, G, or H shall ignore all data that follow the value 1 for vps_extension2_flag in a VPS NAL unit. In F.7.4.3.1 add the following semantics: vps_extension_data_flag may have any value. Its presence and value do not affect decoder conformance to profiles specified in Anne

48、xes A, G, or H. Decoders conforming to a profile specified in Annexes A, G, or H shall ignore all vps_extension_data_flag syntax elements. In F.7.4.3.1.1 replace Table F.1 with the following table: Table F.1 Mapping of ScalabiltyId to scalability dimensions scalability mask index Scalability dimensi

49、on ScalabilityId mapping 0 Texture or depth DepthLayerFlag 1 Multiview ViewOrderIdx 2 Spatial/quality scalability DependencyId 3 Auxiliary AuxId 4-15 Reserved In F.7.4.3.1.1 remove Note 2. In F.7.4.3.1.1 replace the paragraph starting with “The variable ScalabilityId i smIdx specifying the identifier“ and the following equation (F-2), with the following: The variable ScalabilityId i smIdx specifying the identifier of the smIdx-th scalability dimension type of the