INTERNATIONAL TELECOMMUNICATION UNION
`INTERNATIONAL TELECOMMUNICATION UNION
`
`ITU-T
`ITU-T
`
`TELECOMMUNICATION
`TELECOMMUNICATION
`STANDARDIZATION SECTOR
`STANDARDIZATION SECTOR
`OF ITU
`OF ITU
`
`H.263
`H.263
`
`(02/98)
`(02/98)
`
`SERIES H: AUDIOVISUAL AND MULTIMEDIA SYSTEMS
`SERIES H: AUDIOVISUAL AND MULTIMEDIA SYSTEMS
`Infrastructure of audiovisual services — Coding of moving
`Infrastructure of audiovisual services – Coding of moving
`video
`video
`
`Video coding for low bit rate communication
`Video coding for low bit rate communication
`
`ITU-T Recommendation H.263
`ITU-T Recommendation H.263
`
`(Previously CCITT Recommendation)
`(Previously CCITT Recommendation)
`
`Page 1
`
`NETFLIX, INC
`Exhibit 1020
`IPR2018-01630
`
`

`

`ITU-T H-SERIES RECOMMENDATIONS
`ITU-T H-SERIES RECOMMENDATIONS
`AUDIOVISUAL AND MULTIMEDIA SYSTEMS
`AUDIOVISUAL AND MULTIMEDIA SYSTEMS
`
`Characteristics of transmission channels used for other than telephone purposes
`Characteristics of transmission channels used for other than telephone purposes
`Use of telephone-type circuits for voice-frequency telegraphy
`Use of telephone-type circuits for voice-frequency telegraphy
`Telephone circuits or cables used for various types of telegraph transmission or
`Telephone circuits or cables used for various types of telegraph transmission or
`simultaneous transmission
`simultaneous transmission
`Telephone-type circuits used for facsimile telegraphy
`Telephone-type circuits used for facsimile telegraphy
`Characteristics of data signals
`Characteristics of data signals
`CHARACTERISTICS OF VISUAL TELEPHONE SYSTEMS
`CHARACTERISTICS OF VISUAL TELEPHONE SYSTEMS
`INFRASTRUCTURE OF AUDIOVISUAL SERVICES
`INFRASTRUCTURE OF AUDIOVISUAL SERVICES
`General
`General
`Transmission multiplexing and synchronization
`Transmission multiplexing and synchronization
`Systems aspects
`Systems aspects
`Communication procedures
`Communication procedures
`Coding of moving video
`Coding of moving video
`Related systems aspects
`Related systems aspects
`Systems and terminal equipment for audiovisual services
`Systems and terminal equipment for audiovisual services
`
`H.10—H.19
`H.10–H.19
`H.20—H.29
`H.20–H.29
`H.30–H.39
`H.30—H.39
`
`H.40—H.49
`H.40–H.49
`H.50–H.99
`H.50—H.99
`H.100—H.199
`H.100–H.199
`
`H.200—H.219
`H.200–H.219
`H.220—H.229
`H.220–H.229
`H.230—H.239
`H.230–H.239
`H.240—H.259
`H.240–H.259
`H.260–H.279
`H.260—H.279
`H.280—H.299
`H.280–H.299
`H.300–H.399
`H.300—H.399
`
`For further details, please refer to ITU-T List of Recommendations.
`For further details, please refer to ITU-T List of Recommendations.
`
`Page 2
`
`

`

`ITU-T RECOMMENDATION H.263
`ITU-T RECOMMENDATION H.263
`
`VIDEO CODING FOR LOW BIT RATE COMMUNICATION
`VIDEO CODING FOR LOW BIT RATE COMMUNICATION
`
`Summary
`Summary
`
`This Recommendation specifies a coded representation that can be used for compressing the moving
`This Recommendation specifies a coded representation that can be used for compressing the moving
`picture component of audio-visual services at low bit rates. The basic configuration of the video
`picture component of audio-visual services at low bit rates. The basic configuration of the video
`source coding algorithm is based on Recommendation H.261 and is a hybrid of inter-picture
`source coding algorithm is based on Recommendation H.261 and is a hybrid of inter-picture
`prediction to utilize temporal redundancy and transform coding of the remaining signal to reduce
`prediction to utilize temporal redundancy and transform coding of the remaining signal to reduce
`spatial redundancy. The source coder can operate on five standardized video source formats:
`spatial redundancy. The source coder can operate on five standardized video source formats:
`sub-QCIF, QCIF, CIF, 4CIF and 16CIF, and can also operate using a broad range of custom video
`sub-QClF, QClF, CIF, 4ClF and 16CIF, and can also operate using a broad range of custom video
`formats.
`formats.
`The decoder has motion compensation capability, allowing optional incorporation of this technique
`The decoder has motion compensation capability, allowing optional incorporation of this technique
`in the coder. Half pixel precision is used for the motion compensation, as opposed to
`in the coder. Half pixel precision is used for the motion compensation, as opposed to
`Recommendation H.261 where full pixel precision and a loopfilter are used. Variable length coding
`Recommendation H.261 where full pixel precision and a loopfilter are used. Variable length coding
`is used for the symbols to be transmitted.
`is used for the symbols to be transmitted.
`In addition to the basic video source coding algorithm, sixteen negotiable coding options are
`In addition to the basic video source coding algorithm, sixteen negotiable coding options are
`included for improved compression performance and the support of additional capabilities.
`included for improved compression performance and the support of additional capabilities.
`Additional supplemental information may also be included in the bitstream for enhanced display
`Additional supplemental information may also be included in the bitstream for enhanced display
`capability and for external usage.
`capability and for external usage.
`
`Source
`Source
`ITU-T Recommendation H.263 was revised by ITU-T Study Group 16 (1997-2000) and was
`ITU-T Recommendation H.263 was revised by ITU-T Study Group 16 (1997-2000) and was
`approved under the WTSC Resolution No. 1 procedure on the 6th of February 1998.
`approved under the WTSC Resolution No. 1 procedure on the 6th of February 1998.
`
`Page 3
`
`

`

`FOREWORD
`FOREWORD
`
`ITU (International Telecommunication Union) is the United Nations Specialized Agency in the field of
`ITU (International Telecommunication Union) is the United Nations Specialized Agency in the field of
`telecommunications. The ITU Telecommunication Standardization Sector (ITU-T) is a permanent organ of
`telecommunications. The ITU Telecommunication Standardization Sector (ITU-T) is a permanent organ of
`the ITU. The ITU-T is responsible for studying technical, operating and tariff questions and issuing
`the ITU. The 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.
`Recommendations on them with a view to standardizing telecommunications on a worldwide basis.
`
`The World Telecommunication Standardization Conference (WTSC), which meets every four years,
`The World Telecommunication Standardization Conference (WTSC), which meets every four years,
`establishes the topics for study by the ITU-T Study Groups which, in their turn, produce Recommendations
`establishes the topics for study by the ITU-T Study Groups which, in their turn, produce Recommendations
`on these topics.
`on these topics.
`
`The approval of Recommendations by the Members of the ITU-T is covered by the procedure laid down in
`The approval of Recommendations by the Members of the ITU-T is covered by the procedure laid down in
`WTSC Resolution No. 1.
`WTSC Resolution No. 1.
`
`In some areas of information technology which fall within ITU-T’s purview, the necessary standards are
`In some areas of information technology which fall within ITU-T's purview, the necessary standards are
`prepared on a collaborative basis with ISO and IEC.
`prepared on a collaborative basis with ISO and IEC.
`
`In this Recommendation, the expression "Administration" is used for conciseness to indicate both a
`In this Recommendation, the expression "Administration" is used for conciseness to indicate both a
`telecommunication administration and a recognized operating agency.
`telecommunication administration and a recognized operating agency.
`
`NOTE
`NOTE
`
`INTELLECTUAL PROPERTY RIGHTS
`INTELLECTUAL PROPERTY RIGHTS
`
`The ITU draws attention to the possibility that the practice or implementation of this Recommendation may
`The ITU draws attention to the possibility that the practice or implementation of this Recommendation may
`involve the use of a claimed Intellectual Property Right. The ITU takes no position concerning the evidence,
`involve the use of a claimed Intellectual Property Right. The ITU takes no position concerning the evidence,
`validity or applicability of claimed Intellectual Property Rights, whether asserted by ITU members or others
`validity or applicability of claimed Intellectual Property Rights, whether asserted by ITU members or others
`outside of the Recommendation development process.
`outside of the Recommendation development process.
`
`As of the date of approval of this Recommendation, the ITU had received notice of intellectual property,
`As of the date of approval of this Recommendation, the ITU had received notice of intellectual property,
`protected by patents, which may be required to implement this Recommendation. However, implementors are
`protected by patents, which may be required to implement this Recommendation. However, implementors are
`cautioned that this may not represent the latest information and are therefore strongly urged to consult the
`cautioned that this may not represent the latest information and are therefore strongly urged to consult the
`TSB patent database.
`TSB patent database.
`
`All rights reserved. No part of this publication may be reproduced or utilized in any form or by any means,
`All rights reserved. No part of this publication may be reproduced or utilized in any form or by any means,
`electronic or mechanical, including photocopying and microfilm, without permission in writing from the ITU.
`electronic or mechanical, including photocopying and microfilm, without permission in writing from the ITU.
`
`q ITU 1998
` ITU 1998
`
`ii
`ii
`
`Recommendation H.263 (02/98)
`Recommendation H.263
`(02/98)
`
`Page 4
`
`ª
`

`

`1
`1
`
`2
`2
`
`3
`3
`
`3.1
`3.1
`3.2
`3.2
`
`3.3
`3.3
`3.4
`3.4
`
`3.5
`3.5
`3.6
`3.6
`3.7
`3.7
`3.8
`3.8
`3.9
`3.9
`
`4
`4
`
`4.1
`4.1
`
`4.2
`4.2
`
`CONTENTS
`CONTENTS
`
`Page
`Page
`
`Scope ..........................................................................................................................
`Scope
`
`
`References ..................................................................................................................
`References
`
`
`Brief specification ......................................................................................................
`Brief specification
`
`Video input and output...............................................................................................
`Video input and output
`
`Digital output and input..............................................................................................
`Digital output and input
`
`Sampling frequency....................................................................................................
`Sampling frequency
`
`Source coding algorithm ............................................................................................
`
`Source coding algorithm
`3.4.1 Continuous Presence Multipoint and Video Multiplex mode.......................
`3.4.1 Continuous Presence Multipoint and Video Multiplex mode
`
`3.4.2 Unrestricted Motion Vector mode ................................................................
`3.4.2 Unrestricted Motion Vector mode
`
`3.4.3
`Syntax-based Arithmetic Coding mode ........................................................
`3.4.3 Syntax-based Arithmetic Coding mode
`
`3.4.4 Advanced Prediction mode ...........................................................................
`3.4.4 Advanced Prediction mode
`
`3.4.5
`PB-frames mode............................................................................................
`3.4.5 PB-frames mode
`
`3.4.6
`Forward Error Correction..............................................................................
`3.4.6 Forward Error Correction
`
`3.4.7 Advanced INTRA Coding mode...................................................................
`3.4.7 Advanced INTRA Coding mode
`
`3.4.8 Deblocking Filter mode.................................................................................
`3.4.8 Deblocking Filter mode
`
`3.4.9
`Slice Structured mode ...................................................................................
`3.4.9 Slice Structured mode
`
`3.4.10 Supplemental enhancement information.......................................................
`3.4.10 Supplemental enhancement information
`
`3.4.11 Improved PB-frames mode ...........................................................................
`3.4.11 Improved PB-frames mode
`
`3.4.12 Reference Picture Selection mode ................................................................
`3.4.12 Reference Picture Selection mode
`
`3.4.13 Temporal, SNR and Spatial Scalability mode...............................................
`3.4.13 Temporal, SNR and Spatial Scalability mode
`
`3.4.14 Reference Picture Resampling mode ............................................................
`3.4.14 Reference Picture Resampling mode
`
`3.4.15 Reduced-Resolution Update mode................................................................
`3.4.15 Reduced-Resolution Update mode
`
`3.4.16 Independent Segment Decoding mode..........................................................
`3.4.16 Independent Segment Decoding mode
`
`3.4.17 Alternative INTER VLC mode .....................................................................
`3.4.17 Alternative INTER VLC mode
`
`3.4.18 Modified Quantization mode ........................................................................
`3.4.18 Modified Quantization mode
`
`Bit rate ........................................................................................................................
`Bit rate
`
`Buffering ....................................................................................................................
`
`Buffering
`
`Symmetry of transmission..........................................................................................
`Symmetry of transmission
`
`Error handling.............................................................................................................
`
`Error handling
`
`Multipoint operation...................................................................................................
`
`Multipoint operation
`
`1
`1
`
`1
`1
`
`2
`2
`
`2
`2
`
`2
`2
`
`2
`2
`
`2
`2
`3
`3
`3
`3
`3
`3
`3
`3
`3
`3
`3
`3
`4
`4
`4
`4
`4
`4
`4
`4
`4
`4
`4
`4
`5
`5
`5
`5
`5
`5
`5
`5
`5
`5
`5
`5
`6
`6
`6
`6
`6
`6
`6
`6
`7
`7
`
`Source coder...............................................................................................................
`Source coder
`
`Source format .............................................................................................................
`Source format
`
`Video source coding algorithm ..................................................................................
`Video source coding algorithm
`
`4.2.1 GOBs, slices, macroblocks and blocks .........................................................
`4.2.1 GOBs, slices, macroblocks and blocks
`
`4.2.2
`Prediction ......................................................................................................
`4.2.2 Prediction
`
`
`7
`7
`7
`7
`9
`9
`9
`9
`11
`11
`
`Recommendation H.263
`(02/98)
`Recommendation H.263 (02/98)
`
`iii
`iii
`
`Page 5
`
`

`

`4.2.3 Motion compensation....................................................................................
`4.2.3 Motion compensation
`
`4.2.4 Quantization ..................................................................................................
`4.2.4 Quantization
`
`
`Coding control............................................................................................................
`Coding control
`
`
`Forced updating..........................................................................................................
`Forced updating
`
`
`Byte alignment of start codes .....................................................................................
`Byte alignment of start codes
`
`
`Page
`Page
`12
`12
`12
`12
`
`13
`13
`
`13
`13
`
`13
`13
`
`13
`Syntax and semantics .................................................................................................
`13
`Syntax and semantics
`
`22
`Picture layer................................................................................................................
`22
`Picture layer
`
`22
`5.1.1 Picture Start Code (PSC) (22 bits) ................................................................
`22
`5.1.1 Picture Start Code (PSC) (22 bits)
`
`23
`5.1.2 Temporal Reference (TR) (8 bits).................................................................
`5.1.2 Temporal Reference (TR) (8 bits)
`23
`
`23
`5.1.3 Type Information (PTYPE) (Variable Length).............................................
`5.1.3 Type Information (PTYPE) (Variable Length)
`
`23
`24
`5.1.4 Plus PTYPE (PLUSPTYPE) (Variable Length) ...........................................
`24
`5.1.4 Plus PTYPE (PLUSPTYPE) (Variable Length)
`
`27
`5.1.5 Custom Picture Format (CPFMT) (23 bits) ..................................................
`5.1.5 Custom Picture Format (CPFMT) (23 bits)
`
`27
`28
`5.1.6 Extended Pixel Aspect Ratio (EPAR) (16 bits) ............................................
`28
`5.1.6 Extended Pixel Aspect Ratio (EPAR) (16 bits)
`
`28
`5.1.7 Custom Picture Clock Frequency Code (CPCFC) (8 bits)............................
`28
`5.1.7 Custom Picture Clock Frequency Code (CPCFC) (8 bits)
`
`28
`5.1.8 Extended Temporal Reference (ETR) (2 bits) ..............................................
`5.1.8 Extended Temporal Reference (ETR) (2 bits)
`
`28
`29
`5.1.9 Unlimited Unrestricted Motion Vectors Indicator (UUI) (Variable length).
`29
`5.1.9 Unlimited Unrestricted Motion Vectors Indicator (UUI) (Variable length)
`29
`5.1.10 Slice Structured Submode bits (SSS) (2 bits) ...............................................
`29
`5.1.10 Slice Structured Submode bits (SSS) (2 bits)
`
`29
`5.1.11 Enhancement Layer Number (ELNUM) (4 bits)...........................................
`5.1.11 Enhancement Layer Number (ELNUM) (4 bits)
`29
`
`29
`5.1.12 Reference Layer Number (RLNUM) (4 bits)................................................
`5.1.12 Reference Layer Number (RLNUM) (4 bits)
`29
`
`29
`5.1.13 Reference Picture Selection Mode Flags (RPSMF) (3 bits) .........................
`29
`5.1.13 Reference Picture Selection Mode Flags (RPSMF) (3 bits)
`
`30
`5.1.14 Temporal Reference for Prediction Indication (TRPI) (1 bit).......................
`5.1.14 Temporal Reference for Prediction Indication (TRPI) (1 bit)
`
`30
`30
`5.1.15 Temporal Reference for Prediction (TRP) (10 bits)......................................
`5.1.15 Temporal Reference for Prediction (TRP) (10 bits)
`30
`
`30
`5.1.16 Back-Channel message Indication (BCI) (Variable length)..........................
`30
`5.1.16 Back-Channel message Indication (BCI) (Variable length)
`
`30
`5.1.17 Back-Channel Message (BCM) (Variable length)........................................
`5.1.17 Back-Channel Message (BCM) (Variable length)
`
`30
`30
`5.1.18 Reference Picture Resampling Parameters (RPRP) (Variable length)..........
`5.1.18 Reference Picture Resampling Parameters (RPRP) (Variable length)
`
`30
`30
`5.1.19 Quantizer Information (PQUANT) (5 bits)...................................................
`5.1.19 Quantizer Information (PQUANT) (5 bits)
`30
`
`31
`5.1.20 Continuous Presence Multipoint and Video Multiplex (CPM) (1 bit)..........
`5.1.20 Continuous Presence Multipoint and Video Multiplex (CPM) (1 bit)
`
`31
`31
`5.1.21 Picture Sub-Bitstream Indicator (PSBI) (2 bits)............................................
`31
`5.1.21 Picture Sub-Bitstream Indicator (PSBI) (2 bits)
`
`5.1.22 Temporal Reference for B-pictures in PB-frames (TRB) (3/5 bits)...............
`31
`5.1.22 Temporal Reference for B-pictures in PB-frames (TRB) (3/5 bits)
`31
`
`5.1.23 Quantization information for B-pictures in PB-frames (DBQUANT) (2 bits) 31
`31
`5.1.23 Quantization information for B-pictures in PB-frames (DBQUANT) (2 bits)
`5.1.24 Extra Insertion Information (PEI) (1 bit) ......................................................
`31
`5.1.24 Extra Insertion Information (PEI) (1 bit)
`
`31
`5.1.25 Supplemental Enhancement Information (PSUPP) (0/8/16 ... bits)..............
`31
`5.1.25 Supplemental Enhancement Information (PSUPP) (0/8/16 ... bits)
`
`31
`5.1.26 Stuffing (ESTUF) (Variable length) .............................................................
`32
`5.1.26 Stuffing (ESTUF) (Variable length)
`
`32
`5.1.27 End Of Sequence (EOS) (22 bits) .................................................................
`32
`5.1.27 End Of Sequence (EOS) (22 bits)
`
`32
`5.1.28 Stuffing (PSTUF) (Variable length)..............................................................
`32
`5.1.28 Stuffing (PSTUF) (Variable length)
`
`32
`Group of Blocks Layer...............................................................................................
`32
`
`Group of Blocks Layer
`32
`5.2.1 Stuffing (GSTUF) (Variable length).............................................................
`32
`5.2.1 Stuffing (GSTUF) (Variable length)
`
`32
`
`4.3
`4.3
`
`4.4
`4.4
`
`4.5
`4.5
`
`5
`5
`5.1
`5.1
`
`5.2
`5.2
`
`iv
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`Recommendation H.263
`(02/98)
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`Page 6
`
`

`

`5.2.2 Group of Block Start Code (GBSC) (17 bits) ...............................................
`5.2.2 Group of Block Start Code (GBSC) (17 bits)
`
`5.2.3 Group Number (GN) (5 bits).........................................................................
`5.2.3 Group Number (GN) (5 bits)
`
`5.2.4 GOB Sub-Bitstream Indicator (GSBI) (2 bits)..............................................
`5.2.4 GOB Sub-Bitstream Indicator (GSBI) (2 bits)
`
`5.2.5 GOB Frame ID (GFID) (2 bits).....................................................................
`5.2.5 GOB Frame ID (GFID) (2 bits)
`
`5.2.6 Quantizer Information (GQUANT) (5 bits)..................................................
`5.2.6 Quantizer Information (GQUANT) (5 bits)
`
`Macroblock layer........................................................................................................
`
`Macroblock layer
`5.3.1 Coded macroblock indication (COD) (1 bit) ................................................
`5.3.1 Coded macroblock indication (COD) (1 bit)
`
`5.3.2 Macroblock type & Coded Block Pattern for Chrominance (MCBPC)
`5.3.2 Macroblock type & Coded Block Pattern for Chrominance (MCBPC)
`(Variable length) ...........................................................................................
`
`(Variable length)
`5.3.3 Macroblock mode for B-blocks (MODB) (Variable length).........................
`5.3.3 Macroblock mode for B-blocks (MODB) (Variable length)
`
`5.3.4 Coded Block Pattern for B-blocks (CBPB) (6 bits)......................................
`5.3.4 Coded Block Pattern for B-blocks (CBPB) (6 bits)
`
`5.3.5 Coded Block Pattern for luminance (CBPY) (Variable length)....................
`5.3.5 Coded Block Pattern for luminance (CBPY) (Variable length)
`
`5.3.6 Quantizer Information (DQUANT) (2 bits/Variable Length).......................
`5.3.6 Quantizer Information (DQUANT) (2 bits/Variable Length)
`
`5.3.7 Motion Vector Data (MVD) (Variable length) .............................................
`5.3.7 Motion Vector Data (MVD) (Variable length)
`
`5.3.8 Motion Vector Data (MVD2-4) (Variable length)..........................................
`5.3.8 Motion Vector Data (MVD2_4) (Variable length)
`
`5.3.9 Motion Vector Data for B-macroblock (MVDB) (Variable length).............
`5.3.9 Motion Vector Data for B-macroblock (MVDB) (Variable length)
`
`Block layer..................................................................................................................
`
`Block layer
`5.4.1 DC coefficient for INTRA blocks (INTRADC) (8 bits)...............................
`5.4.1 DC coefficient for INTRA blocks (INTRADC) (8 bits)
`
`5.4.2
`Transform Coefficient (TCOEF) (Variable length) ......................................
`5.4.2 Transform Coefficient (TCOEF) (Variable length)
`
`
`Decoding process .......................................................................................................
`Decoding process
`
`Motion compensation.................................................................................................
`Motion compensation
`
`6.1.1 Differential motion vectors ...........................................................................
`6.1.1 Differential motion vectors
`
`6.1.2
`Interpolation for subpixel prediction.............................................................
`6.1.2
`Interpolation for subpixel prediction
`
`Coefficients decoding.................................................................................................
`Coefficients decoding
`
`6.2.1
`Inverse quantization ......................................................................................
`6.2.1
`Inverse quantization
`
`6.2.2 Clipping of reconstruction levels ..................................................................
`6.2.2 Clipping of reconstruction levels
`
`6.2.3
`Zigzag positioning.........................................................................................
`6.2.3 Zigzag positioning
`
`6.2.4
`Inverse transform...........................................................................................
`6.2.4
`Inverse transform.
`
`Reconstruction of blocks............................................................................................
`Reconstruction of blocks
`
`6.3.1
`Summation ....................................................................................................
`6.3.1 Summation
`
`6.3.2 Clipping.........................................................................................................
`6.3.2 Clipping
`
`
`5.3
`5.3
`
`5.4
`5.4
`
`6
`6
`6.1
`6.1
`
`6.2
`6.2
`
`6.3
`6.3
`
`Annex A – Inverse transform accuracy specification..............................................................
`Annex A — Inverse transform accuracy specification
`
`
`Annex B – Hypothetical Reference Decoder...........................................................................
`Annex B — Hypothetical Reference Decoder
`
`
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`Annex C – Considerations for multipoint ...............................................................................
`Annex C — Considerations for multipoint
`
`C.1
`Freeze picture request.................................................................................................
`C.1
`Freeze picture request
`
`C.2
`Fast update request .....................................................................................................
`C.2
`Fast update request
`
`C.3
`Freeze picture release .................................................................................................
`C.3
`Freeze picture release
`
`C.4
`Continuous Presence Multipoint and Video Multiplexing (CPM).............................
`
`Continuous Presence Multipoint and Video Multiplexing (CPM)
`C.4
`C.4.1 End Of Sub-Bitstream code (EOSBS) (23 bits)............................................
`C.4.1 End Of Sub-Bitstream code (EOSBS) (23 bits)
`
`C.4.2 Ending Sub-Bitstream Indicator (ESBI) (2 bits)...........................................
`C.4.2 Ending Sub-Bitstream Indicator (ESBI) (2 bits)
`
`
`Annex D – Unrestricted Motion Vector mode ........................................................................
`Annex D — Unrestricted Motion Vector mode
`
`
`D.1
`Motion vectors over picture boundaries.....................................................................
`D.1 Motion vectors over picture boundaries
`
`D.1.1 Restrictions for motion vector values ...........................................................
`D.1.1 Restrictions for motion vector values
`
`Extension of the motion vector range.........................................................................
`Extension of the motion vector range
`
`
`D.2
`D.2
`
`Annex E – Syntax-based Arithmetic Coding mode.................................................................
`Annex E — Syntax-based Arithmetic Coding mode
`
`
`E.1
`E.1
`
`E.2
`E.2
`
`E.3
`E.3
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`E.4
`E.4
`
`E.5
`E.5
`
`E.6
`E.6
`
`Introduction ................................................................................................................
`Introduction
`
`
`Specification of SAC encoder ....................................................................................
`Specification of SAC encoder
`
`
`Specification of SAC decoder ....................................................................................
`Specification of SAC decoder
`
`
`Syntax.........................................................................................................................
`Syntax
`
`
`PSC_FIFO ..................................................................................................................
`PSC_FIFO
`
`
`Header layer symbols .................................................................................................
`Header layer symbols
`
`
`E.7
`Macroblock and Block layer symbols........................................................................
`E.7 Macroblock and Block layer symbols
`
`
`E.8
`E.8
`
`SAC models................................................................................................................
`SAC models
`
`
`Annex F – Advanced Prediction mode....................................................................................
`Annex F — Advanced Prediction mode
`
`F.1
`Introduction ................................................................................................................
`F.1
`Introduction
`
`Four motion vectors per macroblock..........................................................................
`Four motion vectors per macroblock
`
`Overlapped motion compensation for luminance ......................................................
`
`Overlapped motion compensation for luminance
`
`F.3
`F.3
`
`F.2
`F.2
`
`Annex G – PB-frames mode....................................................................................................
`Annex G — PB-frames mode
`
`
`G.1
`G.1
`
`G.2
`G.2
`
`G.3
`G.3
`
`G.4
`G.4
`
`G.5
`G.5
`
`Introduction ................................................................................................................
`Introduction
`
`
`PB-frames and INTRA blocks....................................................................................
`
`PB-frames and INTRA blocks
`
`Block layer..................................................................................................................
`Block layer
`
`
`Calculation of vectors for the B-picture in a PB-frame..............................................
`
`Calculation of vectors for the B-picture in a PB-frame
`
`Prediction of a B-block in a PB-frame .......................................................................
`
`Prediction of a B-block in a PB-frame
`
`Annex H – Forward error correction for coded video signal...................................................
`Annex H — Forward error correction for coded video signal
`
`H.1
`Introduction ................................................................................................................
`H.1
`Introduction
`
`Error correction framing.............................................................................................
`Error correction framing
`
`Error correcting code..................................................................................................
`Error correcting code
`
`
`H.3
`H.3
`
`H.2
`H.2
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`H.4
`1-1.4
`
`Relock time for error corrector framing.....................................................................
`
`Relock time for error corrector framing
`
`Annex I – Advanced INTRA Coding mode ............................................................................
`Annex I — Advanced INTRA Coding mode
`
`I.1
`Introduction ................................................................................................................
`I.1
`Introduction
`
`Syntax.........................................................................................................................
`Syntax
`
`Decoding process .................................................................................................