changes.txt

[Currently, all validation scripts work except for those that use error concealment features.]


Known bugs:
  currently all known/reported bugs have been fixed,
  but the missing features below need to be implemented

Missing features:
- support of field pictures in scalable configurations in encoder
  (currently only correctly supported in single-layer coding)
- adding of remaining profile/level constraints in encoder
  (add checks in decoder?)
- error detection & concealment 
  (without the restriction to two layers and 
  fixed prediction structures that was found
  in the previously implemented version)

Further desirable improvements:
- support GOP structures with non-dyadic prediction structures
- combination of MGS and CGS coding
- higher flexibility of "MGS vector mode"
- if feasible, support of slice data partitioning
- support of large file sizes (>4GB)
- setting of IROI parameters in scalability info SEI and IROI-based extraction



JSVM_9_19_14 -> JSVM_9_19_15
============================
changes:
- fix for macroblock type derivation in inter-layer prediction



JSVM_9_19_13 -> JSVM_9_19_14
============================
changes:
- changes by Dolby for 3d multiplexing
  - add fractional-pixel sub-sampling support for layer 0 (the base layer) for both SbS
    and aB frame-compatible formats
  - updated software manual that includes a full description of the new parameters 
    as well as instructions on how they affect each other, especially with 
    respect to properly using fractional-pixel sub-sampling



JSVM_9_19_12 -> JSVM_9_19_13
============================
changes:
- changes by Dolby for supporting 3d multiplexing (for MFC standardization):
  - see macro DOLBY_ENCMUX_ENABLE (enabled by default)
  - sample config files are in folder jsvm\JSVM\H264Extension\data\Dolby_3DMux
  - note: additional encoding parameters are not described in the JSVM software manual



JSVM_9_19_11 -> JSVM_9_19_12
============================
changes:
- addition of project and solution files for Visual Studio 10
- fixes for incomplete layer representations regarding the availability
  of intra neighbours and deblocking (for special cases)



JSVM_9_19_10 -> JSVM_9_19_11
============================
changes:
- corrected deblocking filter strength derivation for SpatialResolutionChangeFlag = 1 and I_BL macroblocks
  (using transform coefficient levels instead of scaled transform coefficients)



JSVM_9_19_9 -> JSVM_9_19_10
===========================
changes:
- corrected resampling from frame (frame_mbs_only_flag=1) to bottom field    [already in JSVM_9_19_10_BETA]
- corrected decoding of incomplete layer representations (for special cases) [already in JSVM_9_19_10_BETA]
- corrected residual resampling from field to frame (frame_mbs_only_flag=1)
- corrected construction of non-available samples for resampling from a field
- corrected construction of non-available samples for resampling from a non-MbAff frame
- corrected motion resampling from field pictures
- corrected handling of layer representatons where some (but not all) slices have no_inter_layer_pred_flag = 1
- some minor encoder only corrections


JSVM_9_19_8 -> JSVM_9_19_9
==========================
changes:
- enable proposed deblocking filter modification (VCEG-AN10_r3) by default
  (can be disabled by setting PROPOSED_DEBLOCKING_APRIL2010 equal to 0)


JSVM_9_19_7 -> JSVM_9_19_8
==========================
changes:
- fix that prevents overflow when ScaledRefLayerPic[Width|Height]InSamples is >= 65536
- fix that prevents an assertion for parsing of reversed/unspecified NAL units
- fix for buffer allocation if enhancement layer is greater than base layer
- proposed deblocking filter modification (VCEG-AN10_r3) as option per compiler flag
  PROPOSED_DEBLOCKING_APRIL2010 (disabled by default)


JSVM_9_19_6 -> JSVM_9_19_7
==========================
changes:
- correction of maximum buffer size (for cases the base layer picture is larger than the enhancement layer picture)
- correction of cropping (for CGS cases with negative ScaledRefLayerLeftOffset and/or ScaledRefLayerTopOffset)


JSVM_9_19_5 -> JSVM_9_19_6
==========================
changes:
- fix for motion upsampling with very large resolution ratios
- minor fix for deblocking of multiple slices with different deblocking parameters
- correct order of layer information in SVC VUI extension


JSVM_9_19_4 -> JSVM_9_19_5
==========================
changes:
- fix for packet trace mode of extractor
- fix for checking of scaling matrices
- fix of deblocking for multiple slices with different deblocking parameters


JSVM_9_19_3 -> JSVM_9_19_4
==========================
changes:
- corrections related to parsing with scan_idx_start != 0 and/or scan_idx_end != 15


JSVM_9_19_2 -> JSVM_9_19_3
==========================
changes:
- prevent overflow in position calculation equations
- relax constraint on presence of scalable SEI for bitstream extractor


JSVM_9_19_1 -> JSVM_9_19_2
==========================
changes:
- checking whether base_mode_flag equal to 1 is allowed when
  constrained_intra_upsampling_flag is equal to 1


JSVM_9_19 -> JSVM_9_19_1
========================
changes:
- correction of position calculation (clipping) in intra-inter combination process


JSVM_9_18 -> JSVM_9_19
======================
changes:
- correction of scaling matrix selection
- support of 2nd chroma QP offset
- support of monochrome High profile decoding
- correction of slice group change cycle parsing
- remove assertion when non-supported SEIs are received
- correction of MMCO 3 for field pictures
- correction of POC setting for MMCO 5
- correction of NumClockTS setting
- correction of profile_level_idc setting in SEI (reported on 29.10.2009 by Thomas Gambier)
- correction of POC mode 2 decoding (reported on 11.09.2009 by Emmanuel Weber and later by Danny Hong)
- correction of residual condition for 8x8 blocks (reported on 07.09.2009 by Shivakumar Udupa)
- correction of VLC parsing for MGS fragments (reported on 23.09.2009 by Stefan Eckard)
- correction of residual data handling in inter-intra combination (reported on 28.09.2009 by Stefan Eckard)
- correction of loop filter conditions (reported on 24.09.2009 by Stefan Eckard)
- removed unnecessary deblocking (reported on 01.07.2009 by Steve Gordon)
- correction of rate output for PAFF (reported on 09.07.2009 by Rashad Jillani)
- correction of reference chroma QP setting in rewrite mode (reported on 09.07.2009 by Shinjan Tiwary)
- correction of SPS setting for MGS enhancements of spatial layers (reported on 11.09.2009 by Stefan Eckard)
- correction of decoding of incomplete layer representation in rewrite mode



JSVM_9_18 -> JSVM_9_18_1
========================
changes:
- remove compiler errors for gcc 4.4.0 (provided by Marc-Antoine Arnaud)
- bug fix: prevent decoder crash for IDR pictures with no_output_of_prior_pics_flag = 1 in middle of a stream
- bug fix: prevent segmentation fault when accessing layer information in xChangeScalableSEIMesssage()
- bug fix: use correct resampling parameters in motion resampling when a layer 
           with ESS=2 and MGS refinement is present (provided by Haixia Shi)
- bug fix: correct inference of residual_prediction_flag for SKIP macroblocks outside cropping window

added validation scripts:
- ESS2PlusMGS



JSVM_9_17 -> JSVM_9_18
======================
Decoder (and encoder) corrections
- added clipping after residual accumulation (G.8.5.3)
- corrections of CAVLC coding/parsing for "coefficient slices" with nC>7
- corrections of CAVLC coding/parsing for "coefficient slices" for DC coeff. arrays
- corrected inference of residual_prediction_flag for skipped macroblocks
- corrected coding/parsing of reference indices
  (when adaptive_base_mode_flag is not equal to adaptive_motion_prediction_flag)
- corrected NAL unit parsing when last byte in stream is an emulation prevention byte
- corrected FMO mode 6 (for single-layer coding)
- some fixes related to SEI messages
- adding/correcting SNR scalability for MbAff frames
  (with and without inter-layer cropping rectangle)

Encoder only corrections and additions
- adaptation of adaptive_base_mode_flag in SNR scalable coding,
  when selected levels can violate the constraint
  on the maximum number of motion vectors
- added support for slices with MbAff coding 
- new config file parameters for independently selecting
  inter-layer mode, motion, and residual prediction
- new config file parameter for specifying minimum level
- corrected NAL unit order (all SEI messages at beginning of an access unit)
- corrected order of SEI message (buffering period must be sent at the beginning of an AU)
- corrected writing of Integrity check SEI (when layers with different frames rates are present)
- corrected writing of nested PicTiming SEIs (only when the corresponding temporal layer is present)
- corrected setting of dpb_output_delay (for hierarchical prediction structures,
  including low-delay configurations)
- option for disabling MMCO commands

General improvements / added features
- support of gcc 4.3.3
- support of 64 bit operating systems
- workspace for VC9 (including 64 bit configurations)
- bit stream extractor fix (allows gap in layer_id values in scalable SEI)
- software manual update/correction
- restructuring of encoding process (significant simplification), including
  - motion estimation, motion compensation, and coding are done in one stage
    (former multi-stage processing for non-key picture was removed)
  - no subsequent estimation of prediction mode and residual
  - only one function for encoding a macroblock
  - using same functions for "key" and "non-key" pictures (and all slice types)
  - using same functions for coding with and without "slices"
- improvement/correction of encoder/decoder trace files
  (trace files can now be compared and should be identical)
- resolving of some memory issues (e.g. memory leaks)


JSVM_9_16 -> JSVM_9_17
======================
- Newly added feature: multi-layer lambda selection algorithm (JVT-AD021) 


JSVM_9_15 -> JSVM_9_16
======================
- Bug fix related to the calculation of the priority layer maximum bitrate.
- Fix for memory leak in SEI code
- Fix for calculating packet sizes in bitstream extractor
- Fix for setting POC when receiving an MMCO 5
- Fixes in encoder control for InterLayerPred = 1
- Fix for parsing (inferring) residual_prediction_flag


JSVM_9_14 -> JSVM_9_15
======================
- correction of temporal Id in packet trace files
- correction of padding before intra upsampling for Mbaff frames (near top & bottom border)
- correction of residual prediction (residual of intra MBs is not used for residual prediction)
- correction of derivation of SpatialResolutionChangeFlag and RestrictedSpatialResolutionChangeFlag
- correction of typo in motion vector scaling (when cropping parameters change)
- correction of derivation of sub-macroblock modes in inter-layer motion prediction
- correction of chroma location calculation for the inter-intra combination process
- correction of transform coefficient scaling in AVC rewriting mode
- correction of derivation of maximum slice size (encoder only)
- additional encoder checks for not supported combinations of parameters
- correction of encoder control for InterLayerPred equal to 1
- temporally disabling the writing of parameters in scalable info SEI that causes encoder crashes
  (this will be re-enabled in the future when a bug fix has been implemented, see below)

Known bugs:
- bug in calculation of m_aadMaxBitrate[][] - fix will be provided by Nokia
  (argument of setPriorityLayerInfoPresentFlag() should be changed from false to true after the bug fix)
- incorrect setting of dpb_output_delay
- correction of SNR scalability with Mbaff frames (currently this is considered as spatial scalability in the software)

Missing features:
- support of field pictures in scalable configurations in encoder (currently only correctly supported in single-layer coding)
- adding of remaining profile/level constraints in encoder (add checks in decoder?)
- decoder support for AVC rewrite mode in connection with incomplete layer representations (as adopted at the Geneva meeting in April 2008) 
- error detection & concealment (without the restriction to two layers and fixed prediction structures that was found in the previously implemented version)

Further desireable improvements: 
- general improvement of encoder structure, including
    - using same functions for P and B pictures ("key" and "non-key" pictures)
    - using same functions for "slice mode"
    - using same functions for "IROI"
    - combine "motion estimation", "motion compensation", and "residual encoding"
- support of more flexible encoder configurations, including
    - GOP structures with non-dyadic prediction structures
    - combination of MGS and CGS coding
    - higher flexibility of "MGS vector mode"
    - if feasible, support of slice data partitioning



JSVM_9_13_1 -> JSVM_9_14
========================
- direct 8x8 inference for inter-layer motion prediction in B slices (see JVT-AB010)
- removal of copyright headers from source files and adding an extra file with copyright information


JSVM_9_13 -> JSVM_9_13_1
========================
- encoder fix for combining slices (only SliceMode 1) with so-called MGS fragments
- removal of extra (non-required) coding path for IROI's
- correction of validation scripts using slices
  (the SliceMode and SliceArgument variables have been moved from the main
   configuration files to the layer config files in JSVM_9_13)



JSVM_9_12_2 -> JSVM_9_13
========================
- correct setting of level_idc in encoder
- correction of scaling matrix support in decoder
- new encoder options for scaling matrices
- new encoder option for 8x8 transform (removal of FRExt parameter)
- IPCM support in decoder (including for SNR scalability)
- encoder option for forcing IPCM macroblocks (for debugging purposes)
- correction of prefix NAL unit syntax
- removal of filler prefix NAL units (no longer supported in draft standard)
- added support for Level 1b
- fix of MCTF preprocessor
- fix of FixedQPEncoder
- fix in residual upsampling (item 47 of JVT-AA025r1)
- fix for derivation of intra prediction modes in AVC rewrite mode
- fix in derivation of RestrictedSpatialResolutionChangeFlag (item 33 of JVT-AA025r1)
- fix in loop filter (for interlaced with I_BL mode)
- fix in condition for transmission of slice_group_change_cycle (item 51 of JVT-AA025r1)
- fix for padding before intra upsampling in Mbaff scenarios
- fix for SVC direct mode (in layers with DQId > 0)
- update (rewrite) of DPB implementation (+ required changes in encoder)
- modification of coding order in encoder, in particular (but not only) for low-delay
  (in low-delay configs, we know have a correct low-delay coding order)
- fixes for field pictures (in base layer)
- encoder support for high-delay P pictures
- configurability of profile
- implementation of (most) profile constraints in encoder
- implementation of some additional level constraints in encoder including
	- maximum number of motion vectors
	- disabling bi-prediction for blocks smaller than 8x8
	- maximum slice size in Scalable Baseline and Scalable High
	- interlaced support
	- support of CABAC and 8x8 in scalable Baseline
- support of long-term pictures in decoder (not extensively tested yet)
- support of SVC encoding with long-term pictures
- removal of "SCALING_FACTOR_HACK", which resulted in different QP cascading for QCIF
  (note: due to this change, the rate/PSNR points in validation scripts that include
         QCIF resolutions might have been significantly changed)
- addition of new validation scripts
- correction of validation scripts (options not supported in SVC have been removed)



JSVM_9_12_1 -> JSVM_9_12_2
==========================

-Bug fix related to the inter-layer deblocking filter process.



JSVM_9_12 -> JSVM_9_12_1
========================

- Alignment between "SVC levels" text (clause G.10.2) and software related to the level idc computation

- Changes to trace file high-level syntax elements so as to be aligned with the SVC spec :
constrained_set0_flag -> constraint_set0_flag 
constrained_set1_flag -> constraint_set1_flag 
constrained_set2_flag -> constraint_set2_flag 
constrained_set3_flag -> constraint_set3_flag 
interlayer_deblocking_filter_control_present_flag  -> inter_layer_deblocking_filter_control_present_flag 
chroma_phase_x_plus1 -> chroma_phase_x_plus1_flag 
base_chroma_phase_x_plus1 -> seq_ref_layer_chroma_phase_x_plus1_flag 
base_chroma_phase_y_plus1 -> seq_ref_layer_chroma_phase_y_plus1 
scaled_base_left_offset -> seq_scaled_ref_layer_left_offset 
scaled_base_top_offset -> seq_scaled_ref_layer_top_offset 
scaled_base_right_offset -> seq_scaled_ref_layer_right_offset 
scaled_base_bottom_offset -> seq_scaled_ref_layer_bottom_offset 
deblocking_filter_parameters_present_flag -> deblocking_filter_control_present_flag 

- Very minor changes in the software manual



JSVM_9_11 -> JSVM_9_12
======================

several bug fixes and corrections, including
    - correction of resampling for intra (interlaced, constrained intra upsampling)
    - correction of resampling for residual (interlaced)
    - correction of resampling for motion data (interlaced)
    - correction of bit rate specification in SEI message (Nokia)
    - correction of CABAC parsing for new SVC syntax elements

addition of new validation scripts


JSVM_9_10 -> JSVM_9_11
======================

1) newly added features
    - rate control for the base layer

JSVM_9_10_DEVEL3 -> JSVM_9_10
=============================

NOTE:  Error concealment at the decoder has been removed.
NOTE2: The project files for VS 6 and VS 7 are not up-to-date. Only the
       project files for VS 8 and the makefiles for Linux are up-to-date.

1) newly added features
    - correction of loop filter operation
    - implementation of two-stage modes in loop filter (idc=3 and 6)
    - correction (update) of position calculation in residual resampling
    - correction (update) of position calculation in motion resampling
    - correction (update) of motion vector scaling
    - correction (update) of intra-inter prediction mode
    - correction (update) of AVC rewrite mode with multiple slice groups

2) bug fixing: some bug fixes at different places

3) addition of new validation scripts

NOTE: THE CURRENT SOFTWARE SHOULD BE FURTHER IMPROVED (volunteers are required!)
-----------------------------------------------------
    - error detection and concealment code has been removed - it need to be added in a more general way
      (all validation scripts that simulate packet losses fail)
    - further checking of match between text and software is required
    - I_BL macroblocks should be implemented
    - long-term reference pictures should be implemented



JSVM_9_10_DEVEL2 -> JSVM_9_10_DEVEL3
====================================

NOTE: This is a version in development. Error concealment at the decoder has been removed.

1) newly added features
    - re-implementation of temporal direct mode
    - implementation of SVC skipped slices (slice_skip_flag = 1)
    - support of non-complete layer representations (slices missing) 
      for quality_id > 0 in decoder (no error concealment - this is
      allowed in conforming bit streams)

2) bug fixing: many bug fixes at different places

3) addition of new validation scripts

NOTE: THE CURRENT SOFTWARE NEEDS FURTHER IMPROVEMENT
----------------------------------------------------
    - error detection and concealment code has been removed - it need to be added in a more general way
      (all validation scripts that simulate packet losses fail)
    - some known mismatches between software and text need to be fixed
    - some further checking of match between text and software is required


JSVM_9_10_DEVEL -> JSVM_9_10_DEVEL2
===================================

NOTE: This is a version in development. Some features have been removed.

1) bug fixing: many bug fixes at different places, including
    - fixing of interlaced support
    - fixing of slice implementation in combination with other features
    - fixing of rewriting support

2) modification of validation scripts
    - correction to some interlaced scripts
      (upsample parameters for encoding were different than downsampling parameters)
    - clean up: removal of unsupported variables
    - clean up: removal of terms "MCTF" and "FGS"
    - add several new validation scripts that test combination of features
      that haven't been sufficiently testes before (and didn't work for many cases)

NOTE: THE CURRENT SOFTWARE NEEDS FURTHER IMPROVEMENT
----------------------------------------------------
    - temporal direct mode currently not supported due to the removal of the 2nd "base layer" decoder
      (all validation scripts for AVC bitstreams that use the temporal direct mode fail)
    - error detection and concealment code has been removed - it need to be added in a more general way
      (all validation scripts that simulate packet losses fail)
    - some further checking of match between text and software is required


JSVM_9_9 -> JSVM_9_10_DEVEL
===========================

NOTE: This is a version in development. Some features have been removed and other features have to be fixed.

1) correction of syntax, including
    - SPS and subset SPS
    - correction of handling of subset SPS
    - correction of prefix header syntax
    - correction of slice header syntax
    - correction of IDR picture support

2) removing of features that are not supported in the standard
   (mainly decoder clean-up)
    - RCDO, 4-tap upsampling filters
    - FGS
    - fragmented NAL units

3) major rewrite of decoder (simplification, code improvement)
    - removing of additional "base layer decoder" in class H264AVCDecoder
    - clean up of processing order in decoder
    - clean processing of access units in decoder
    - general improvement, simplifications of main decoder classes
      (H264AVCDecoderLibTest,H264AVCDecoder,LayerDecoder,...)

NOTE: THE CURRENT SOFTWARE NEEDS FURTHER IMPROVEMENT
----------------------------------------------------
    - temporal direct mode currently not supported due to the removal of the 2nd "base layer" decoder
      (all validation scripts for AVC bitstreams that use the temporal direct mode fail)
    - error detection and concealment code has been removed - it need to be added in a more general way
      (all validation scripts that simulate packet losses fail)
    - interlaced features need to be corrected
      (corresponding validation scripts fails)
    - some other issues (need to be debugged)



[Note (Jerome): For the time being, the following validation scripts "fail":
FMO, IROI, HRD, MLQL, NonRequired, RPIC,LCFG4_I2I ]

JSVM_9_7 -> JSVM_9_8
========================
Date         : October 15, 2007
Authors      : Hao Zhang, Alex Eleftheriadis (Vidyo Inc, formerly Layered Media Inc.) + Jerome Vieron (Thomson R&D France) 
Contributions: JVT-W062

Changes:
- Implement Tl0DepRep SEI for the layers where dId = 0 and qId = 0.
  Change the name of tl0_pic_idx to tl0_dep_rep_idx. 
- Removal of codes related to tl0_pic_idx in previous versions.
- Add the effective_idr_pic_id syntax into the new Tl0DepRep SEI. 
  Its value is set in the slice header of IDR pictures.
- Very minor changes related to PAff parameter

JSVM_9_6 -> JSVM_9_7
========================
Date         : October 10, 2007
Authors      : Siping Tao, He Ci(USTC)
Contributions: JVT-X046 JVT-X032

Changes:
- Integration of JVT-X046
- Add a validation script SLICE
- Add Subset SPS
- Add Temproal Layer Switching Point SEI 
- Modify ReduKeyPic validation script
- Bug fix relate to Redundant Picture
- Update syntax of the following SEIs:
  Scalability information SEI
  Non-required layer representation SEI
  Priority layer information SEI
- Removal of RCDO validation scripts



JSVM_9_5 -> JSVM_9_6
========================
Date         : September 19, 2007 
Authors      : Jerome Vieron (Thomson R&D France) 
Contributions: JVT-W025

Changes:
- Many Bug fixes related to Interlaced (mainly related to Field coding)
- Removal of flags as adopted in JVT-W025


JSVM_9_4 -> JSVM_9_5
========================
Date         : September 04, 2007 
Authors      : Nathalie Cammas (Orange-France Telecom R&D) + Jerome Vieron (Thomson)
Contributions: JVT-W137

Changes:
- Quality layer SEI syntax implementation/updating
- Fixes related to dead substreams 
-> changes can be find by searching tags MGS_FIX_FT_09_2007 and DS_FIX_FT_09_2007.

- Removal of all the data structure related to Smoothed Ref
- Removal of all the data structure related to Closed Loop option
- Many validation scripts have been repaired etsome have been removed:
-BaseId: fix a bug in encoder, add discardable features in CGS mode, modify the script so as to extract discardable stream or not, adjust PSNR since FGS refinements have been removed
-CAVLC: adjust PSNR since FGS refinements have been removed
-ChromaLPoff: adjust PSNR since FGS refinements have been removed
-EIDR: adjust PSNR since FGS refinements have been removed
-QLNALPid: needs MGS, adjust test configuration
-QLSEI: needs MGS, adjust test configuration
-RCDO: adjust PSNR since FGS refinements have been removed
-SIP: adjust PSNR since FGS refinements have been removed
-SLoop: adjust PSNR since FGS refinements have been removed
-T1: adjust PSNR since FGS refinements have been removed, modify configuration to replace FGS with MGS for SNR extraction test, fix a bug in extractor
-T3: adjust PSNR since FGS refinements have been removed, modify configuration to replace FGS with MGS for SNR extraction test
-Add a validation script MGSDS for the use of discardable stream with MGS
-Add a validation script QLMGSFragments




JSVM_9_3 -> JSVM_9_4
========================
Date         : Aug 16
Authors      : Jiancong Luo (Thomson) + Jerome Vieron (Thomson)
Contributions: JVT-W064

Changes:
- Added seven bitstream restriction indicators in scalability info SEI.

- Removal of FGSSubbandEncoder*.* files
- Removal of adpative filtering features ([JVT-V074])
- Removal of all data related to FGS in FixedQPEncoder
- Removal of all data related to FGS in Perl scripts (not in validation scripts...)


JSVM_9_2 -> JSVM_9_3
========================
Date         : Aug 9
Authors      : Xianglin Wang, Justin Ridge (Nokia)
Contributions: JVT-W030, JVT-W123

Changes:
- Added block merging process under ESS according to JVT-W030.
- Added in encoder the mechanism according to JVT-W123 for avoiding potential 
  artifacts due to residual prediction in ESS. 

JSVM_9_1 -> JSVM_9_2
========================
Date         : Aug 6
Authors      : Heiner Kirchhoffer
Contributions: JVT-W090

Changes:
- Removal of FGS, SmoothedReferences
- Integration of MGS fragments

Notes: Validation scripts need to be updated to reflect the removal of FGS.


JSVM_9 -> JSVM_9_1
========================
Date        : June 25
Authors      : Siping Tao, Ci He, Weixing Wan, Qiu Shen, Hui Liu, Yi Guo (USTC)
Contributions: JVT-W046, JVT-W047, JVT-W048, JVT-W049, JVT-W051,JVT-W052, JVT-W053

Changes:
- Modification of syntax structure in slice header and sequence parameter sets. (JVT-W046)
- Addition of syntax elements in NAL unit header and scalable SEI message. (JVT-W047)
- Modification of syntax in prefix NAL unit and slice header. (JVT-W048)
- Implementation of redundant picture property SEI message, added of one script for 
  JVT-W049 named "ReduKeyPic". (JVT-W049)
- Modification of syntax in scalable SEI message. (JVT-W051)
- Implementation of Integrity-Check SEI message. (JVT-W052)
- Modification of syntax in scalable SEI message. (JVT-W053)
- bug-fixes: minor bug-fix related to IDR

Notes: changes could be found by searching "JVT-WXXX" which corresponds to contributions

JSVM_8_12 -> JSVM_8_13
========================
Date        : May 09, 2007
Author      : Jiancong Luo (Thomson)
Contribution: JVT-V068

Changes:
- 27 files are modified and 6 files are added.
- added Buffering Period SEI, Picture Timing SEI, AVC Temporal HRD SEI.
- modified nesting scalable SEI.
- added VUI in SPS.
- added HSS and HRD, including time calculation and writting of HRD parameters and timing 
  information in VUI and writing of the Buffering Period SEI, Picture Timing SEI, AVC 
  Temporal HRD SEI and nesting scalable SEI containing Buffering Period SEI and 
  Picture Timing SEI for SVC layers.
- Added options to the encoder.cfg file to enable HRD.

Notes:
1.Currently, only each HRD only support one scheduler, i.e. cpb_cnt_minus1 = 0. 
  For the HRD parameters, the BitRate and CpbSize of each scheduler are derived from 
  Table A-1 and Table A-2 based on the level and HRD type.
2.Changes can be found by searching "// JVT-V068"  

JSVM_8_11 -> JSVM_8_12
======================
Date        : May 18, 2007
Author      : Andrew Segall, Jie Zhao (Sharp)
Contribution: JVT-V035

Changes:

- Added project files/make files for standalone SVC to AVC bitstream rewriter, 
- Modified decoder source files to bypass decoding when SHARP_AVC_REWRITE_OUTPUT is defined.
- Minor bugfixes for transform domain prediction (whether coefficient levels or values)


JSVM_8_10 -> JSVM_8_11
======================
Date        : May 15, 2007
Author      : Daniele Alfonso (STMicroelectronics)
Contribution: JVT-V079

Changes:

- Added low-complexity macroblock mode decision method (for base layer only).


JSVM_8_9 -> JSVM_8_10
======================
Date        : Apr 20, 2007
Author      : Andrew Segall, Jie Zhao (Sharp)
Contribution: 

Changes:

- Converted residual prediction from spatial domain to transform domain
- Modified Linux makefile to generate 32bit binary (S. Kamp, RWTH)


JSVM_8_8 -> JSVM_8_9
======================
Date        : March 19, 2007
Author      : Qiu Shen(USTC)

Changes:

- Add prefix unit before the NAL unit of the first AVC slice, and change suffix unit to be after the other NAL unit of AVC slice.
- Minor bug fixes related to ESS


JSVM_8_7 -> JSVM_8_8
======================
Date        : March 10, 2007
Author      : Andrew Segall, Jie Zhao (Sharp)
Contribution: JVT-V035

Changes:

- Add SVC to AVC bitstream rewriting ability
- Bug fixes for GCC 4.x



JSVM_8_6 -> JSVM_8_7
======================
Date        : March 2, 2007
Author      : Jones He (Freescale)
Contribution: JVT-V032

Changes:

- Extend the "disable_deblocking_filter_idc" to 3 and 4 for disabling chroma deblocking 
  filter in enhanced layer while keeping luma processing per values 0 and 2, respectively
- Bug fix (missing initialisation) in UvlcReader.cpp (Provided by Heiner Kirchhoffer / HHI)



JSVM_8_5 -> JSVM_8_6
========================
Date        : Feb 26, 2007
Author      : N. Cammas (Orange-France Telecom R&D), J. Vieron (Thomson R&D)
Contribution: JVT-V058

Changes:

- Add a useSmoothedRef flag in slice header
- Many bug fixes related to Interlaced + others
- Only "6.6.21" validation test (in the AVC_Conformance set) would NOT have to be run !!!



JSVM_8_4 -> JSVM_8_5
========================
Date        : Feb 20, 2007
Authors     : Chengjie Tu (Microsoft), Shankar Regunathan (Microsoft), H. Schwarz (HHI)
Contribution: JVT-V090, JVT-V074

Changes:

- added 4 tap direct motion compensation interpolation for luma (as a configurable encoder option)
- added flexible 4-tap upsampling filters (as an option controlled by the preprocessing flag _JVTV074_)
- bug fix for SKIP mode in hierarchical P pictures
- added encoder option: explicit QP cascading mode
- renamed "MVCMode" to "AVCMode", made it compatible with H.264/AVC



JSVM_8_3 -> JSVM_8_4
========================

Date        : Feb 17, 2007
Author      : H. Schwarz (HHI)
Contribution: JVT-V126

Changes:

- MGS key picture coding
- options for MGS encoder control
+ bug fixes



JSVM_8_2 -> JSVM_8_3
========================

Date        : Feb 14, 2007
Author      : H. Schwarz (HHI)
Contribution: JVT-V125

Changes:

- added H.241/RCDO compatible encoding mode
+ bug fixes



JSVM_8_1 -> JSVM_8_2
======================

Improved Error Resilience using Frame Index in NAL Header Extension for SVC

Date: Feb 8, 2007
Authors: Hao Zhang, Alex Eleftheriadis (Layered Media, Inc.), Jerome Vieron (Thomson R&D)
Contribution: JVT-V088

Changes:

- Removed the picture index (tl0_pic_idx) from the "NAL unit header SVC extension" to the 
  "slice layer in scalable extension". (Note that this field was previously called 
  tl0_frame_idx.)
- Extended the usage of picture index values from the base layer (dependency_id and 
  quality_level equal to 0) to all spatial and quality scalability layers in the lowest 
  temporal level.

Note: The changes above can be found by searching "JVT-V088".
  
- Interlaced bug fixes(downconvert and Loopfilter)  
    


JSVM_8_0_1 -> JSVM_8_1
========================

Date        : Feb 7, 2007
Author      : K. Lee (Samsung)
Contribution: JVT-T037

Changes:

- Only MbEncoder.cpp is modified (see JVT-T037)


JSVM_8_0 -> JSVM_8_0_1
========================

Date   : Feb 6, 2007
Authors: C. Chevance V. Bottreau and, J. Vieron (Thomson)

Changes:

- Many memory leaks fixing (extractor, decoder)
- FixedQPEncoder has been improved. Many new "interesting" features has been added. (cf. Software manual)
- New encoding command line options (already present in configuration files) have been added.
- Long-term interlaced validation scripts have been modified in order to be run in an acceptable time slot...;-)
- Renaming of .Net 2005 "vcproj" and "sln" files. The new name are "*_vc8.vcproj" and "*_vc8.sln". 
- Software manual was updated.


JSVM_7_13 -> JSVM_8_0
========================

Date  : Feb 1, 2007
Author: C. Chevance, E. Francois and, J. Vieron (Thomson)

Changes:

- Few bug fixes related to the interlaced implementation (downconvert, variables initialization...)
- Many memory fixes (uninitialized memory read, memory leaks, etc.). Thanks to Ye Yan for the help! 
- There are many remaining leaks...TODO
- Validation scripts related to interlaced have been slightly  modified
- .Net 2005 "vcproj" and "sln" files have been added


JSVM_7_12_1 -> JSVM_7_13
========================

Date  : Jan. 11, 2007
Author: C. Chevance, E. Francois, V. Bottreau and, J. Vieron (Thomson)
Contributions : JVT-S018

Changes:

- 134 files have been modified  
- MBAFF tools are now supported on both Base and Enhancement layers
- Inter-layer Progressive/Interlace scalability based on the use of a "Virtual Base Layer" is also implemented
- The DownConvertStatic tool has been modified to support the resampling of both Interlaced or Progressive material. The "resample_mode" option has been added.

Regarding the Validation scripts:
- Around 35 files have been added 
- AVC_Conformance: 3 MBAFF validation test sets using the MBAFF AVC conformance bitstreams are provided (6.6.2, 6.6.7, 6.6.18 and, 6.6.20)
- Short_term: 4 validation tests emulating the 4 scenarios defined in the CE on interlaced coding are provided (CFG1_P2I, CFG2_I2P,CFG3_I2P,CFG4_I2I) 
In these scenarios, small "gop" size are considered and CABAC/CAVLC coding is used         
- Long_term: 4 validation tests emulating the 4 scenarios defined in the CE on interlaced coding are provided (LCFG1_P2I, LCFG2_I2P, LCFG3_I2P, LCFG4_I2I) 
Cfg1 -> cfg4 supported 

- We added a directory called "422_to_420fullres": which contains the source code of the SD 422 to 420 conversion tool proposed in [VCEG-059]. ]. 
This tool has to be used to generate the input sequence for validation tests (XCFG1_P2I and XCFG4_I2I) related to Interlaced material. 
The way to use it is explained both in the Software Manual and in the associated Readme.txt file. 


Notes: 
1) The main changes are tagged "TMM_INTERLACE". However, there are too many modifications within the code so that, we didn't add a tag for each change. 
2) Field Picture coding is not fully supported...Moreover features like Bottom-first coding are not yet supported.


JSVM_7_12 -> JSVM_7_12_1
========================

Date  : Jan. 02, 2007
Author: J. Vieron (Thomson)


Changes:

- There was a mismatch between the JSVM text and the software regarding the INTRA blocks (4x4 or/and 8x8) replacement during the Inter-layer Prediction process. 




JSVM_7_11 -> JSVM_7_12
======================

Date: Dec. 19, 2006 
Author: Hao Zhang and Alex Eleftheriadis (Layered Media), J. Vieron (Thomson)
Contribution: JVT-U160

Changes:

- Separate flags are added into the slice header to signal use of base mode selection, residual prediction and motion prediction, separately from adaptive prediction. 
- Only syntax changes are integrated in the current version. R-D optimization is not changed and the default values of these new flags are set in such ways
that the R-D performance stays the same. Therefore, arbitrary settings of these flags will not result in the expected performance.

Note: The changes can be located by searching 'U160'.

-EIDR Bug fixes related to IntraPeriod vs IDRPeriod (provided by shenqiu). 

-Temporal level nesting flag default value is now set to 0  (J. Vieron).
-Very minor: Remove of remaining AGS parts in cfg files of validation scripts (J. Vi�on).





JSVM_7_10 -> JSVM_7_11
=====================

Date: Dec. 16, 2006 
Author: Yan Ye, Yiliang Bao (Qualcomm)
Contributions: JVT-U125, JVT-U126

Changes:

- Integration of cycle aligned fragments for FGS layer according 
  to JVT-U125. Also simplified FGS layer syntaxes by grouping 
  some syntaxes into a macroblock header. 
- Implemented the low-complexity smoothed reference scheme
  according to JVT-U126.

+ MGS fixes provided by Nathalie Cammas
+ fixes of conditions for motion_prediction_flag_lX



JSVM_7_9 -> JSVM_7_10
=====================

Date: Dec. 2, 2006 
Author: Xianglin Wang, Justin Ridge (Nokia)
Contributions: JVT-U129, JVT-U130

Changes:

- Integration of JVT-U129,"Separation markers for FGS color 
  components". Added corresponding SEI message.
- Implemented the improved inter-layer prediction mechanism
  for ESS according to JVT-U130.

+ bug fix for Intra_BL mode in CGS by H. Schwarz
  (I_BL for CGS was broken since version JSVM_7_7)



JSVM_7_8 -> JSVM_7_9
=====================

Date: Nov. 28, 2006 
Author: Heiko Schwarz (HHI)
Contributions: Software re-structuring

Main goal: Change the encoder structure from GOP-based
           processing the AU-based processing, in order to
  1) provide more logical coder structure
  2) enable more flexible encoding structures (in future)
  2) use enhancement layer refereneces for optimizing
     base layer encoding (in future)

Comments:
  - only very high level changes
  - only a first step for an improved encoder structure
  - things that should be done in future
    + combine function for encoding non-key pictures in
      a single function (as for key pictures)
    + single function for encoding both key and non-key
      pictures
    + remove all GOP-related processing in class
      MCTFEncoder (rename that class!)
    + use class similar to PicEncoder for encoding an
      access unit (AU) of a picture


JSVM_7_7 -> JSVM_7_8
=====================

Date: Nov. 28, 2006 
Authors: Heiko Schwarz (HHI), Mathias Wien (RWTH Aachen)
Contributions: Bug fixes

Changes:

1) remove X11 library from Linux makefiles
2) add command line parameter "-meqplp" for adjusting lambda for key pictures
3) correct usage of QP values in FixedQpEncoder
4) changes "\" to "/" in specifying motion file path in FixedQpEncoder
5) Corrected reading of priority_id in H264AVCPacketAnalyser::process()

6) Decoder fixes for MGS, the old implementation has following problems
   - it crashed when MGS enhancement layer were partially discarded
   - wrong reference picture for motion compensation were used
     for partially truncated MGS enhancement layers
     (after first problem was fixed)
7) Added two additional tests in MGS valaidation script for
   partially truncated MGS layers


JSVM_7_6 -> JSVM_7_7
=====================

Date: Nov. 27, 2006 
Authors: Yi Guo, Qiu Shen, Hui Liu (USTC)
Contributions: JVT-U106, JVT-S035

Changes:

1. Integration of JVT-U106 "discardable data adaptation:
   Behaviour at slice boundaries" (you can find these changes by searching "JVT-U106")
   (a) Add function xConstrainedIntraUpsampling() in MCTFEncoder and MCTFDecoder
       to treat slice boundaries as picture boundaries when processing upsampling
       slice by slice.
2. Bug-fix of JVT-S035 (You can find these changes by searching "bug-fix 11/16/06")
   Changes: Do code cleaning of Scalability SEI message part

3. Scalable SEI clean-up
   (a) Delete Comments and unsued member functions and variables
   (b) Merge some functions into fewer ones with similar parts.
   (c) Delete 4 files ScalableModifyCode.cpp&.h, ScalableTestCode.cpp&.h
       Add    2 files ScalableModifyCode.cpp&.h, into project BitstreamExtractor.

4. Bug fixes:
   -Modify some extracting functions considering affect with each other.
   -Rewrite scalability SEI message in every method for further use.


JSVM_7_5 -> JSVM_7_6
====================

Date      : Nov. 17, 2006
Author    : Hao Zhang, Alex Eleftheriadis (Layered Media) and, Adrian Guede-Lewis (Simecom)
Contrib   : JVT-U085, JVT-U116

Changes:

- Temporal level nesting flag was added into the scalability Information SEI message (JVT-U085). 
The value is set via the -tlnest command line option, or the TLNestingFlag configuration file
parameter. The default value is 1 (set).

- extension_flag and extension byte for frame indices added in SVC NAL unit header, for suffix 
NAL units (JVT-U116). The feature is enabled via the -tlidx command line option, or the
TLFrameIdxEnable configuration file parameter. The default value is 0 (no extension).

Note: The changes can be located by searching for "U085" and "U116".


Bug fixes: 

-Splitting the Loop filtering and the border extension processes. There was a msimatch 
between the text and the software (In LoopFilter.cpp)
- Bug fixes regarding the usage of not reconstructed neighboring Inter MBs in the filtering process (In LoopFilter.cpp)

Note: These fixes can be found by searching  "agl@simecom".


JSVM_7_4 -> JSVM_7_5
====================

Date      : Nov. 10, 2006
Author	  : Andrew Segall (Sharp)
Contrib   : JVT-U042 

Changes:

- Reduced filter length for luma upsampling (JVT-U042).



JSVM_7_3 -> JSVM_7_4
====================

Date      : Nov. 9, 2006
Author	  : Heiner Kirchhoffer (HHI)
Contrib   : JVT-U082

Changes:

- Integration of JVT-U082 'Improved CABAC for PR slices'. New CABAC context models
for the coding of refinement symbols in FGS were added and the derivation
of the CABAC context models for the coding of refinement symbols was modified.



JSVM_7_2 -> JSVM_7_3
====================

Date      : Nov. 9, 2006
Author	  : Seung-Wook Park (LG)
Contrib   : JVT-U090

Changes:

- Modification of syntax structure for 'store_base_rep_flag' according to JVT-U090



JSVM_7_1 -> JSVM_7_2
====================

Date      : Nov. 8, 2006
Author	  : Jizheng XU(Microsoft)
Contrib   : JVT-U067

Changes:

- Modify position calculation for upsampling according to JVT-U067



JSVM_6_8_2 -> JSVM_7_1
======================

Cleaning + bug fixes

Date      : Nov. 07, 2006
Authors   : N. Cammas and J. Vieron
Contrib   : JVT-T054

Changes:

-Removal of many duplicated methods related to JVT-T054.
-Cleaning of various part related to JVT-T054 integration and to Fragment NAL part.
-Bug fixes related to a mismatch between text and software in the SPS: parameters are written in a wrong order. 
The calls to xWriteFrext()/xReadFrext() methods have just been displaced (cf //bug fix JV 07/11/06)



JSVM_6_8_2 -> JSVM_7_0
======================

Date      : Nov. 06, 2006
Author    : J. Vieron  (on behalf of Manu Mathew, Shen Qiu and, Liu Hui)

Changes:

-Bug fixes in QLAssigner: temporal level reading from suffix NAL unit missing (cf tag "//{suffix TL read"  in QLAssigner.cpp)
-Bug fixes in Extractor:  loop on MAX_FGS_LAYERS (cf tag "//bug fix JV 02/11/06" in Extractor.cpp)
-Fixes for Software manual regarding the -mqp, -rqp and -lqp command line parameters. lqp or rqp, and not mqp, specify the MeQPLP parameter.


JSVM_6_8_1 -> JSVM_6_8_2
========================

Date	    : Oct. 12, 2006
Author	  : J. Vieron (on behalf of Tae Meon Bae, Burak Gorkemli, Masschelein Bart and, Bottreau Vincent)

Changes:

-Bug fixes related error concealment parameters setting
-Bug fix related to FGSMotion without FGS slices 
-Bug fixes for gcc 4.1 compilation
-FixedQPEncoder (if mode QP and residual QP are equal in the cfg, they evolves similarly for the first 5 iterations
then it is fixed to the latest value, otherwise mode Qp value will not change during iterations)


JSVM_6_8 -> JSVM_6_8_1
======================

Date	    : Sep. 25, 2006
Author	  : J. Vieron (on behalf of K. Xie, Shen Qiu, N. Cammas, X. Wang, H. Schwarz and F. Leleannec)

Changes:

- Add 4 new validation scripts for error concealment + minor bug fixes 
+ add of a dummy PacketLossSimulator in the Validation directory. Please read the JSVM Software manual !! (K. Xie),
- IDR option bug fixes (see //bug-fix shenqiu EIDR) (Shenqiu),
- Bug fixes related to JVT-T054 (N. Cammas),
- Bug fixes related to AR-FGS  (X. Wang),
- Bug fix related to FGSMotion (H. Schwarz),  
- Bug fix related to QualityLevelAssigner tool when GOP size is equal to 1 (F. Leleannec)



JSVM_6_7 -> JSVM_6_8
====================

Date	    : Sep. 11, 2006
Author	  : Kai Xie (Thomson)

Changes:

- Bug fixes for error concealment
- Bug fixes (very minor) related to the usage of FGS and FGS motion refinement (check consistency)



JSVM_6_6 -> JSVM_6_7
====================

Date	    : Sep. 05, 2006
Author	    : Reichel, Julien (GE Security)
Contribution: JVT-T083

Changes:

- Modified Nal Header (3 bytes)
- Modified Slice header
- Removed the notion of KeyPicture, and replaced it by UseBasePrediction and StoreBaseRepresentation
- Added additional controls for the inter-layer deblocking filter.

Fixes: 

- Partial fixes for the trace files
- Some test configurations had to be slightly modified


JSVM_6_5 -> JSVM_6_6
====================

Nesting SEI message

Date	    : Aug. 28, 2006
Author	    : Shenqiu, Liuhui, Guoyi (USTC)
Contribution: JVT-T073

Changes:

- add nesting SEI message including scene information SEI message (JVT-T073)

Fixes:

- LARDO bug fixes (//Bug_Fix JVT-R057 0806)
- Suffix NAL unit bug fixes, and BaseLayerMode 0. A lot of test configurations updated. (//bug-fix suffix)
- Use of temporal_level from suffix NAL units in bitstream extraction (bugfix)


JSVM_6_4 -> JSVM_6_5
====================

Date	      : Aug. 11, 2006
Author	    : N. Cammas (Orange-FT)
Contribution: JVT-T054

Changes:

- enable SNR enhancement coded using EI, EP or EB slices
- add -keepf option to BitStreamExtractorStatic

Fixes: 

- FragCABAC, FragVLC test configuration


JSVM_6_3 -> JSVM_6_4
====================

Date        : Aug. 4, 2006
Author      : T. M. Bae (ICU)
Contribution: JVT-T058

Changes:

- Inter-layer motion prediction using FGS refined motion

Fixes:

- remove forced multi-loop decoding flag in MCTFDecoder::xDecodeBaseRepresentation() (M. Wien, suggested by V. Bottreau)
- updated Validation tests to use correct upsampling method (V. Bottreau)
- updated Software Manual regarding dyadic downsampling with ESS and configuration (V. Bottreau, M. Wien)


JSVM_6_2 -> JSVM_6_3
====================

De-interleaving of 8x8 coefficients in FGS

Date        : July 28, 2006
Author      : J. Ridge (Nokia)
Contribution: JVT-T089

Changes:

- De-interleave 8x8 coefficients to be processed as 4 4x4's
- Consolidation of significance pass routines in CABAC/CAVLC

+ DownConvert.inl fix provided by Shijun Sun (M. Wien)


JSVM_6_1 -> JSVM_6_2
====================

Modification for grouping of refinement coefficients

Date        : July 26, 2006
Author      : M. Shima (TI)
Contribution: JVT-T067

Changes:

- Addition of refinement coefficients prescanning on encoder side
- Removal of possible random memory access on decoder side
- Minor modifications for "FragVLC" test

+ ARFGS fixes provided by Steffen Kamp (integrated by H.Schwarz)
+ removal of some Linux warnings (H. Schwarz)


JSVM_5_12_1 -> JSVM_6_1
=======================

Independent Parsing + Removal of AGS

Date        : July 24, 2006
Author      : H. Schwarz
Contribution: JVT-T079

Changes:

- independent parsing as only possibility
- removal of AGS
- removal of multi-loop decoding mode



JSVM_5_12 -> JSVM_5_12_1
========================

Bug fixes

Date        : July 17, 2006
Author      : J. Vieron (on behalf of S. Kamp, Y.Bao and H. Schwarz)

Changes:

- FGS (CBP 8x8) bug fixes 
- ARFGS bug fixes
- QP setting fix ("-mqp" command line parameter)  



JSVM_5_11 -> JSVM_5_12
======================

Extended Spatial Scalability (new implementation)

Date         : July 10, 2006   
Author       : J. Vieron
Contribution : JD6

Changes:

- File MbData.cpp was rewritten to support the new way of achieving ESS (i.e. inter-layer motion prediction)
- Minor changes in downconvert*.* files


JSVM_5_10 -> JSVM_5_11
======================

ROI Extraction & FMO in Progressive Refinement Slice

Date         : July 04, 2006
Author       : Tae Meon Bae 
Contribution : JVT-Q077, JVT-P113

Changes:

- FMO in FGS for  encoder/decoder
- Bitstream extraction with roi_id
- Bitstream extraction with FMO
 
Note:
- Added the parameter "-r" to Bitstream extraction to extract ROI in the bitstream.
  
- FMO is working with FGS layer. the "macroblock to slice group map" is same for FGS and base quality layer.
  Decoder can handle a drop of a slice group when FMO enabled bitstream is decoded.
  Bitstream extractor is modified to handle FMO enabled bitstream. But bitstream guarantees correct bitrate control when the numbers of slice group of each layer is the same.

===================================
IROI signaling in Scalable Info SEI 

Date: July 01, 2006
Author: M.H. Lee
Contribution: JVT-S054

Changes:

- Support IROI coding in Progressive Refinement Slice

Note: The changes above can be found by searching "JVT-S054 (2)".




JSVM_5_9 -> JSVM_5_10
=====================

Multi Layer Quality Layers

Date         : June 24, 2006.
Author       : Manu Mathew <manu.mathew@samsung.com>
Contribution : JVT-S043

Changes:

- Added the parameter "-mlql" to Quality Level Assigner. If this parameter is used, 
  the quality level assigner will estimate quality layer Ids that are optimal for the top layer.
  This may improve the top layer(dependency_id) PSNR when the extractor truncates the bitstream using the option "-ql".

Note: If Quality level assigner uses the option -mlql, bitstream extraction using "-ql" may 
  result in the removal/truncation of some of the lower layer's(dependency_id's) FGS layers 
  even before all the FGS layers of a higher layer(dependency_id) are completely removed.

- Added the parameter "-qlord" to Bitstream Extractor. This parameter can be used to 
  simulate normal(ordered) quality layer extraction even if multi layer quality layer assignment was done.
  With this option, a lower layer's(dependency_id's) FGS packets are removed only aftre all the upper layer's
  FGS packets have been removed.

- The main changes can be found by searching for JVT-S043.


JSVM_5_8 -> JSVM_5_9
====================

Position calculation for SVC upsampling & Frame-based selected inter-layer pred

Date          : June 20, 2006
Authors       : Ji-Zheng Xu   Khai Zhang
Contributions : JVT-S067 and JVT-S051 

Changes:

- Implementing the SIP dynamic programming algorithm (JVT-S051) as an new project: SIPAnalyser.
- Added "EncSIPFile" in encoder.cfg. The encoder can encode consulting to the SIP decision results file.
- The encoder can output bits information used by SIPAnalyser.
- The extractor can discard packets selectively by setting the additional option "-sip".
- Implementing JVT-S067

Note: The changes above can be found by searching "JVT-S051".

-Bug fixes. (Can be found by searching "BUG FIX Kai Zhang")



JSVM_5_7 -> JSVM_5_8
====================

IROI signaling in Scalable Info SEI 

Date: June 1, 2006
Author: M.H. Lee
Contribution: JVT-S054

Changes:

- Read IROI parameters in cfg files
- writing and reading  of IROI slice division info in Scalable Info SEI
- Coding of multiple slices according to IROI slice division info

Note: The changes above can be found by searching "JVT-S054".



JSVM_5_6_1 -> JSVM_5_7
======================

Improved Management of Scalability Information using Control Operations 

Date: May 28, 2006
Authors: Hao Zhang, Alex Eleftheriadis (Layered Media, Inc.)
Contribution: JVT-S080

Changes:

- Added "scalability_info_layers_not_present" and "scalability_info_dependency_change" SEI messages.
- Enabled transmission of these two messages when layers are extracted in the bitstream extrator. 
  The default behavior, however, of transmitting a modified scalability_info SEI message has been 
  retained, rather than transmitting the original scalability_info followed by a scalability_info_layers_not_present
  message. This alternative behavior can be enabled by setting the compile-time flag UPDATE_SEI_MESSAGE
  to 0 in Extractor.h. 

Note: The changes above can be found by searching "JVT-S080 LMI". 


JSVM_5_6 -> JSVM_5_6_1
======================

Cleaning: Bug fixing and warnings removal

Date: May 23, 2006
Author: J. Vieron (on behalf of S. Kamp and H. Kirchoffer)

Changes:

- Unused/Uninitialized variables methods
- Shadowing variables 
- Bug fixes for the handling of the AR-FGS parameters 
- Bug fix in Extractor.cpp regarding the assignment of uiShrinkSize  


JSVM_5_5 -> JSVM_5_6
====================

High-level syntax change & scalability info SEI plus

Date: May 22, 2006
Authors: Shujie Liu, Qiu Shen, Hui Liu (USTC)
Contributions: JVT-S035/S036/S038/S040

Changes: 

- Added "MMCOBaseEnable" and "SuffixUnitEnable" in encoder.cfg
- Syntax changes in nal_unit_header_svc_extension header and slice header
- Added detection of suffix nal unit in the decoder
- Added MMCO & sliding window operation for base representations
- Some syntax changes of scalability info SEI message

Note: The changes above can be found by searching "JVT-S036 lsj". 
 
- Minor Bug fixes (QLAssigner + Encoder Trace)


JSVM_5_4 -> JSVM_5_5
====================

Simplification of Up-sampling process of IntraBL Mode

Date: May 15, 2006
Authors: C. Zhang (Zhejiang Univ.)
Contribution: JVT-S055

Changes:

Use 2-tap bilinear up-sampling filters for chroma.


JSVM_5_3 -> JSVM_5_4
====================

Cleaning: mainly Memory leaks fixing + warnings removal

Date: May 13, 2006
Authors: J. Vieron (Thomson), S. Kamp (RWTH), B. Maschelein (IMEC)

Changes:

- Several Memory leaks fixing 
- Uninitialized variables
- Shadowing variables 
- Removal of unused variables, methods


JSVM_5_2 -> JSVM_5_3
====================

FGS improvements for VLC

Date: May 09, 2006
Authors: Yan Ye (Qualcomm)
Contribution: JVT-S066/S058/S031

Changes:

- modified coding order (Justin Ridge, Nokia)
- improvements to FGS for VLC (S066)
- VLC selector for 4x4 transform blocks (S058)
- Modified VLC for refinement pass (S031)
- FGS Scan Vector fixes (N. Cammas- France-Telecom)


JSVM_5_1 -> JSVM_5_2
====================

Unification of FGS

Date: April 27, 2006
Authors: Justin Ridge (Nokia), Nathalie Cammas (France Telecom R&D)
Contribution: JVT-S077

Changes:

- Convert "regular" FGS to subband approach
- Remove specific routines for AR-FGS ordering (now a single method)
- Add "vector mode" coefficient ordering in FGS
- Tidy-up: removed unused variables and parameters from FGS
- Added some checks to the FGS decoder to avoid "empty" cycles and unnecessary initMb calls



Bug fixes & software manual improvements

Date: April 28, 2006
Author: Heiko Schwarz (in behalf of Martin Winken & Jerome Vieron)

Changes:

- bug-fix for real single-loop decoding at the decoder side (Martin Winken)
- bug-fix for validation scripts (Jerome Vieron)
- update of software manual regarding validation scripts (Jerome Vieron)
- update of software manual regrading error concealment (Chen Ying)
- re-implementing the packet trace option for the bit-stream extractor (Heiko Schwarz)
- update of software manula regrading the packet trace option (Heiko Schwarz)
- added parameter MeQPLP for controlling ME/MD of key pictures - no effect by default (Heiko Schwarz)



JSVM_5_0 -> JSVM_5_1
====================

Skip mode for SVC slice data
Independent parsing (as option in software)
MCTF pre-processing
Remove MCTF and open-loop coding from encoder
Software manual

Date: April 24, 2006
Author: Heiko Schwarz (Fraunhofer HHI)
Contribution: JVT-S068, JVT-S069, JVT-S070, JVT group decision

Changes:

- added skip mode for SVC NAL units
- added independent parsing as software option
  - it is disables by default
  - can be enabled by the layer configuration parameter "IndependentParsing"
    or by the command line parameters "-ipars" and "-aip"
- removed MCTF and open-loop coding from encoder
- added a MCTF pre-processing tool
- added following command line parameters to the encoder:
  "-org", "-rec", "-ec", "-vlc", "-cabac"
- removed following parameters from layer configuration file
  "UseIntra", "AdaptiveQP", "UpdateStep"
- slightly redefined parameter "ClosedLoop"
  -> value 0 now also specifies closed-loop coding



JSVM_5_0 == JSVM_4_12
=====================

no changes



JSVM_4_11 -> JSVM_4_12
======================

Redundant Pictures

Date: April 14, 2006
Authors: Jie Jia, HaeKwang Kim, HaeChul Choi, JaeGon Kim ( Sejong Univ. / ETRI )
Contribution: JVT-Q054

Changes:

1) Add "UseRedundantSlc" in layer config file.
2) With UseRedundantSlc = 1 in layer config file (enable coding redundant picture), one redundant picture will be encoded for each primary
 coded picture without FGS picture.
3) In the decoding process, detection of the redundant coded picture has been added. When the primary coded picture has been decoded
 correctly, the redundant one will not be decoded, or else, the redundant one will be decoded.
( The current redundant picture tool does not support multiple slices per picture for the time being. )

Note: The changes can be found by searching JVT-Q054 tag. 

4) Bug fixes related to LA-RDO (can be found by searching "Bug _Fix JVT-R057" in GopEncoder.h and CreaterH264AVCEncoder.cpp).


JSVM_4_10 ->JSVM_4_11 
===================== 

SVC frame loss concealment

Date: April 12, 2006
Authors: Y. Chen, K. Xie, J. Boyce , J. Vieron (Thomson)
Contribution: JVT-Q046
  
Changes: 

1. Add argument [-ec n] in the decoder command line, enabling Error Concealment algorithm selection. The following values 
are supported for n: 1: BLSKIP;  2: RU; 3: Frame copy; 4: Temporal Direct; 5: Frame Level Frame Copy. 
Only support AVC Compliant base layer (i.e. BaseLayerMode = 1 in encoder.cfg) 
 
2. Temporal Direct Error Concealment mode  
   1) Some methods in MbDataAccesss  
   2) initMbTDEnhance() in MbDataCtrl 
   3) getDistScaleFactorVirtual() in sliceheader 
 
3. MMCO and RPLR 
   1) setDefaultMmcoBuffer() in sliceheaderbase to generate MMCO commands for a missing slice 
   2) readSliceHeaderVirtual() will use the above function and will also generate necessary RPLR 
   commands for a missing slice.  
 
4. Detect missing packets 
   Currently we use the hierarchical B picture GOP Structure to do the packet loss detection 
   and to generate some information for a virtual packet which was lost.  
   Most of the work is done in checkSliceGap(). And other related process is in H264AVCDecoder 
   and NALUnitParser. 
   Do not support slice fragment currently   

5. Virtual Packet decoding 
  1) getTrueSlice() will be frequently used to separate processes between a correctly received 
     packet and a virtual packet. 
  2) getPrdRefListsFromBase() will get the base layer reference list sizes and RPLR commands for
     enhancement layer.  
  3) one of the error concealment methods will be invoked in xDecodeBaseRepresentation() for 
     spatial scalable packet decoding 
  4) xProcessSliceVirtual() corresponding to xProcessSlice() will give a virtual slice decoding
     for a lost packet. 
  5) A FGS packet will be handled as lost if its lower quality level packet is lost 
  6) readSliceHeaderVirtual() will give almost all the slice header level syntax elements for a 
     lost packet.  
  7) readVirtual() in SliceReader will process a parser for all virtual MBs in a lost packet.  
  8) readVirtual() in MbParser will handle the MB level error concealment process (A virtual parser
     to set the modes etc)for TD, FC and BLSKIP methods. 
  9) processVirtual() give base layer error concealment process for TD and FC (A virtual decoding 
     process to get the reconstructed picture for a lost packet) 
 10) New function to support decoding bit-stream group. One bit-stream can be wrapped several 
     times with an END_OF_STREAM NAL among them for the error resiliency tests. nCount in H264AVCDecoderLibTest.cpp 
     should be adjusted. 

Note: All the modifications above can be found by searching TMM_EC tag.


6. Bug fix in Extractor.cpp (provided by S. Kamp [kamp@ient.rwth-aachen.de]) to enable a correct truncation of
    the FGS packets.

7. Bug fix in MbData.cpp (provided by J. Vieron [jerome.vieron@thomson.net]) on the ESS part.

8. Add definition of _JSVM_VERSION_ (i.e. preprocessor command: #define _JSVM_VERSION "4.11") in CommonDefs.h. 
   This define shall specify the current version of the JSVM software. The files BitstreamExtractor.cpp, H264AVCEncoderLibTest.cpp 
   and H264AVCDecoderLibTest.cpp are modified accordingly.




JSVM_4_9 -> JSVM_4_10
=====================

Loss-aware rate-distortion optimization integration
Improvement to the implementation of non-required picture SEI message

Date: April 08, 2006 
Authors: Yi Guo, Qiu Shen
Contributions: JVT-R057 and JVT-Q066

Changes:

1. LA-RDO (you can find these changes by search "JVT-R057 LA-RDO")
   1) Add the channel propagation distortion to the RD-cost in the mode decision functions.
   2) Add the calculation of the distortion map in the following functions: encodeIntra(),encodeInterP() 
      and estimatePrediction().  
   
2. NonRequired (you can find these changes by search "JVT-Q066 (06-04-08)")
   1) Change the uiLayer of NonRequired SEI in Extractor::xAnalyse().
   2) Change the condition of set bkeep in Extractor::xExtractLayerLevel().
   3) Change the initial value of NonRequired SEI in SEI::NonRequiredSei::NonRequiredSei().
   4) Set and Write NonRequired SEI in MCTFEncoder::xEncodeLowPassPictures() and MCTFEncoder::xEncodeHighPassPictures().
   5) Set the flag of Writting NonRequired SEI in H264AVCEncoder::xProcessGOP().
   6) Add the m_pcNonRequiredSei to class H264AVCENCODERLIB_API AccessUnit.
   7) Add "NonRequiredEnable" in encoder.cfg.
   8) Add "IDRPeriod" which should be integral times of GOP size in layer0(1,2..).cfg.

3. Bug-fix (You can find the changes by search "BUG_FIX Shenqiu (06-04-08)")

JSVM_4_8 -> JSVM_4_9
====================

Decoder-side improvement for FGS with motion refinement 

Date: March 28, 2006
Author: M. Winken (HHI)

Changes:

1) only single-motion compensation at decoder side
2) bug fix for open-loop coding



JSVM_4_7 -> JSVM_4_8
====================

Cleaning of DownConvert 

Date: March 27, 2006
Authors: P. Dagois and J. Vieron (Thomson)

Changes:

1) main.cpp (DownConvert): Cleaning of DownConvert Tool to make it easier to use.
2) DownConvert.h: Cleaning of unused functions + re-organization.
3) Removal of "DownConvertTmm.inl" file
4) Addition of a new file "DownConvertTools.inl"
    This file contains all the functions that are only used in the DownConvertStatic Tool .
5) DownConvertStatic.vcproj: "DownConvertTmm.inl" is replaced by "DownConvertTools.inl"
6) DownConvert.inl contains now only the functions specific to the JSVM software (upsampling methods) 
    as well as the common functions between the DownConvertStatic Tool and the JSVM software.
7) main.cpp (PSNR): Removal of "spatial resampling" (i.e. call to downconvert methods) in PSNR tool.
8) PSNRStatic.vcproj: Removal of "DownConvert.h"
9) Validation scripts (New Version 0.0.4): Modified in order to use new tools. Re-indent with spaces.



JSVM_4_6 -> JSVM_4_7
====================

EIDR, 
Non-required picture SEI message (Bug fix), 
Bitstream extractor bug fix

Date: March 26, 2006
Authors: Qiu Shen, Hui Liu, Ye-Kui Wang, Houqiang Li
Contributions: JVT-R053 and JVT-Q066 

Changes:

1. EIDR (you can find these changes by search "EIDR JVT-Q065")
1)	Delete the part of POC reset of IDR in PocCalculator::calculatePoc() / setPoc()
2)	Set m_bUnusedForRef in IntFrame::copyAll() / copy()
3)	Move xClearOutputAll() for IDR from DecodedPicBuffer::xStorePicture() to DecodedPicBuffer::initCurrDPBUnit()
4)	Make a decision of whether add the picture to reference list in MCTFEncoder::xEncodeLowPassSignal()
5)	Init m_bUnusedForRef of m_papcFrame in MCTFEncoder::xInitGOP()
6)	Change the process of get reference list and reference picture number in 	Encoder::xGetPredictionLists() /  		xGetBQPredictionLists() / xGetCLRecPredictionLists	() / xGetFrameNumList()
7)	Change the mode decision process according to the size of reference list and BLSkip mode enable flag in 			MbEncoder::encodeInterP() / estimatePrediction()
8)	Decide whether BLSkip mode can be used in EncoderCodingParameter::xReadFromFile()

2. NonRequired (you can find these changes by search "NonRequired JVT-Q066")
1)	Add a parameter of m_uiNonRequiredPic in H264AVCDecoder::initPacket() / CreaterH264AVCDecoder::initPacket() 

3. Bitstream Extractor(you can find these changes by searching "// BUG_FIX liuhui")
1) Modify scalability SEI message information
2) Add the minimum layer bitrate information in display
3) Fix some potential bugs



JSVM_4_5 -> JSVM_4_6
====================

Adaptive motion refinement for FGS
FGS processing in transform domain

Date: March 22, 2006
Author: Martin Winken, Heiko Schwarz (HHI)
Contribution: JVT-R022

Changes:

1) Added motion estimation to RQFGSSubbandEncoder, using new function
   RQFGSEncoder::xMotionEstimation()
2) Mode decision for FGS is done in new function MbEncoder::encodeFGS(),
   which evaluates R-D costs for the inter macroblock modes as well as
   for simply requantizing the residual using the same prediction signal
   (new function MbEncoder::xEstimateFGSSkip())
3) Baselayer residual for inter-layer prediction is now stored in
   IntFrame* FGSCoder::m_pcBaseLayerSbb and added in RQFGSEncoder::reconstruct(),
   so the calls to MCTFEncoder::xAddBaseLayerResidual() in MCTFEncoder::xEncodeFGSLayer()
   have been removed.
4) FGS motion data are encoded in RQFGSEncoder::xEncodingFGS()/xEncodingSubbandFGS()
   using new functions RQFGSEncoder::xEncodeMotionData(), MbCoder::encodeMotion()
5) Decoding of FGS motion data is done in RQFGSDecoder::xDecodingFGS()/xDecodingSubbandFGS()
   using new functions RQFGSDecoder::xDecodeMotionData(), MbParser::readMotion()
6) At the decoder motion-compensated prediction using FGS motion data is done in
   MCTFDecoder/H264AVCDecoder::xReconstructLastFGS()
7) Inter-layer motion prediction uses Base Quality motion data which is stored in
   MbData::{m_eMbModeBase,m_aBlkModeBase,m_apcMbMotionDataBase}

8) FGS processing in transform domain (JVT decision)



JSVM_4_4 -> JSVM_4_5
====================

Simplified VLC update integration

date: march 19, 2006
author: Masato Shima (TI)
contribution: JVT-R021

changes:

1) Addition of VLC updating function at the end of macroblock iteration
  * FGSSubbandDecoder.cpp: placing function calls of "m_pcSymbolReader->RQupdateVlcTable()"
  * UvlcReader.cpp       : adding definition of "UvlcReader::RQupdateVlcTable()"
  * FGSSubbandEncoder.cpp: placing function calls of "m_pcSymbolWriter->RQupdateVlcTable()"
  * UvlcWriter.cpp       : adding definition of "UvlcWriter::RQupdateVlcTable()"

  * Minor changes (function declaration or so) in the following files
    - CabacReader.h
    - MbSymbolReadIf.h
    - UvlcReader.h
    - CabacWriter.h
    - MbSymbolWriteIf.h
    - UvlcWriter.h

2) Removal of old VLC updating function
  * UvlcReader.cpp: removal of "UcBitGrpReader::xUpdate()"
  * UvlcWriter.cpp: removal of "UcBitGrpWriter::xUpdate()"

3) Minor modification to build with VC6.0
  * MbEncoder.cpp
  * FGSSubbandDecoder.cpp



JSVM_4_3 -> JSVM_4_4
====================

Weighted prediction (encoder algorithm)

Change log:
Date: March 17, 2006
Author: Purvin Pandit (Thomson)
Contribution: JVT-P064

Changes:

1) Added weighted prediction algorithm for encoder (scale and offset)
2) Weights for the Enhancement layer are always inherited if the corresponding base layer picture exists otherwise they are calculated
3) Only scales are used in wp. Offsets are never used although code has been provided.



JSVM_4_2 -> JSVM_4_3
====================

Smoothed reference prediction

date: march 11, 2006
author: Woo-Jin Han (Samsung Electronics)
contribution: JVT-R091

changes:

1) According to JVT-R091, an additional prediction using smoothing function is added for single-loop decoding case. Smoothing function is applied to the sum of MC prediction and base-layer residual signal.

2) New mode is signalled by additional syntax item only when the base_mode_flag and residual_prediction_flag are set.

3) In motion estimation process, new functions to compute R-D cost of smoothed reference prediction are added for both 4x4 and 8x8 transform cases.

4) New short-term test "SmoothedRef" is added.

major S/W changes:

 [ CommonLib changes ]

 IntYuvPicBuffer: 3 new smoothing functions -> smoothMbInside(), smoothMbLeft() and smoothMbTop()
 MbDataStruct: new MB variable -> m_bSmoothedRefFlag

 [ Encoder-side changes ]

 GOPEncoder: 
     xFixMCPrediction() (called in xCompositionStage)
       -> fix normal MC prediction with considerations of smoothed reference
     xFixOrgResidual() (called in xEncodeHighPassPictures)
       -> fix original residual with considerations of smoothed reference (necessary for FGS)
 MbCoder: code segment to call smoothedRefFlag() when base_mode_flag && residual_prediction_flag = 1
 MbEncoder:
     new process for smoothed residual prediction (in encodeResidual)
     new process for computing R-D cost of smoothed residual prediction (in estimatePrediction)
     (xEstimateMbSR, xSetRdCostInterMbSR, xSetRdCost8x8InterMbSR, and xCheckInterMbMode8x8SR)
 CabacWriter & UvlcWriter: smoothedRefFlag() -> write smoothed_ref_flag syntax item

 [ Decoder-side changes ]

 CabacReader & UvlcReader: smoothedRefFlag() -> read smoothed_ref_flag syntax item
 MbDecoder: code segment in xDecodeMbInter() to generate smoothed reference prediction
 MbParser: code segment to call smoothedRefFlag() when base_mode_flag && residual_prediction_flag = 1

JSVM_4_1 -> JSVM_4_2
====================

2-loop AR-FGS integration

date: march 6, 2006
author: Xianglin Wang (Nokia)
contribution: JVT-R077

changes:

1) Modified AR-FGS buffer usage at decoder. Now it uses pictures from DPB for AR-FGS reference. So it can handle  reference picture reordering, etc. Meanwhile, I also cleaned up some necessary buffers. 

2) According to JVT-R077, added decoder-oriented two loop FGS coding structure and a FGS entropy coder with a new coding order. 

3) A couple of bug fixes from Shijun after his integration. 

4) Bug fix recommendation from Heiko regarding an assertation failure in function xMarkShortTermUnused()



JSVM_4_0 -> JSVM_4_1
====================

ESS TOOLS INTEGRATION

date: february 18, 2006
authors: J.Vieron (Thomson) and S.Sun (Sharp)
contributions: JVT-Q038, JVT-Q015, JVT-R018, JVT-R006

changes:
 
 downconvert.inl:
 ----------------
 Cleaning of the initialisation. (very minor)

 downconvert.h, downconvertTmm.inl:
 ---------------------------------
 Cleaning. 
 -Removal of methods xInitFilterTmmResidual(), xDestroyFilterTmmResidual(),xGenericUpsample(),xUpsamplingFrame(),xUpsamplingBlock(), 
   xComputeLastSamplePosition(), xUpsamplingDataResidual ().
 -Removal of members m_pitmpDes4,m_pitmpDes8,m_pitmpDes16; 
                                   
 -Implementation of the upsampling 16 taps filter (adopted as normative cf. JVT-Q038)
 -Dyadic becomes a special case of ESS. For luma in the dyadic case, the previous method filters at phase 0 position while the ESS mode interpolates 
 at phase 1/2 [JVT-R018]
 -Implementation of ESS downsampling filters (seven new sets of filters) based on the sine-windowed sinc function. (This is a 12 tap filters)[JVT-R006]

 MbData.h , MbData.cpp:
 ----------------------
 Extension of the ESS mechanisms to support scaling ratios greater than 2 (cf. [JVT-Q015]) 
 (->Introduction of a new method "xInitInfoBaseDim")
 Various bug fixes.  
 
 main.cpp (DownConvert):
 ----------------------
 Replacement of "malloc" by "new".
  
 main.cpp (PSNR):
 ---------------
 Replacement of "malloc" by "new".
 
 EncoderCodingParameter.h:
 -------------------------
 Add of 4 new options in encoder config file:
 "ESSChromaPhaseX","ESSChromaPhaseY", "ESSBaseChromaPhaseX","ESSBaseChromaPhaseY"
 Changes in inititialisation of ResizeParameters.
  
 GOPDecoder.h,  GOPDecoder.cpp:
 -----------------------------
  Removal of method "fillPredictionLists_ESS". It has been replaced by a new piece of code in GOPDecoder.cpp (in method "xInitBaseLayer").
  The goal of "fillPredictionLists_ESS" and, now, of the new code, is to associate reference list index and POC on the entire GOP. It is mandatory 
  to support the Picture Level ESS.
 
 GOPEncoder.cpp:
 ----------------
 Changes related to chroma phase shift
 
 MbDecoder, MotionEstimation.cpp, MotionEstimationQuarterPer.cpp:
 ----------------------------------------------------
 Bug fixes to allow a real 1/4 pel refinement in case of ESS motion upsampling. 
  
 ResizeParameters.h,ResizeParameters.cpp:
 ----------------------------------------
 "m_acCurrentGop" replaces "m_pcCurrentGop".
 Initialisation of parameters related to chroma phases (m_iChromaPhaseX, m_iBaseChromaPhaseX...) [JVT-Q038,JVT-R018]
 
 SequenceParameterSet.cpp:
 ------------------------
 Dyadic case becomes a special ESS case ([JVT-R018]).
 Initialisation of parameter "m_uiBaseChromaPhaseXPlus1"(to support a correct chroma phase shift). [JVT-R018]
 
 
 SliceHeaderBase.cpp:
 --------------------
 Initialisation of parameter "m_uiBaseChromaPhaseXPlus1"(to support a correct chroma phase shift). [JVT-R018]