Changes in Version JM 10.2 (since JM 10.1)
------------------------------------------
- encoder: fast subpixel motion estimation for EPZS [JVT-Q079] (AT)
- encoder: SI picture implementation (ES)
- encoder: lossless coding fixes (SSu)
- encoder: add warning for bit/mb limit (AT)
- encoder: enable I_PCM (for VLC coding) by default (KS)
- encoder: fix non-rd-optimized mode decision (AT)
- encoder: fix memory allocation in search module (TP)
- encoder: fix bitrate output (PP)
- encoder: fix data partitioning with constrained intra prediction (KS)
- encoder: fix bidirectional prediction with RDOpt=2 (AT)
- encoder: fix MBAFF with constrained intra prediction (KS)
- encoder: fix MBAFF with slice mode 2 and restrict slice mode 1 (KS)
- decoder: SI/SP picture updates (ES)
- decoder: add check for QP range (MT)
- decoder: fix/add SEI parsing: pan/scan, timing, stereo, deblocking filter, film grain (MT)
- decoder: fix dummy croma component output for bit depth > 8 (KS)
- decoder: work around problems in error concealment (KS)
- decoder: fix idr psnr output (SB)
- encoder/decoder: update RTP format (SW)
Changes in Version JM 10.1 (since JM 10.0)
------------------------------------------
- encoder/decoder: apply chroma motion vector adjustment only for 4:2:0 (SZ/KS)
- encoder: write vlc run if last mb is skipped ()
Changes in Version JM 10.0 (since JM 9.8)
-----------------------------------------
- encoder: simplified UMHexagonS fast motion estimation [JVT-P021] (XY)
- encoder: EPZS fast motion estimation [JVT-P026] (AT)
- encoder: fix reference picture reordering problem (AT)
- encoder: disallow (log2_max_frame_num_minus4 == 0 && input->num_ref_frames == 16) (AT)
- decoder: error concealment for lost pictures [JVT-P072] (SB)
- decoder: fix long-term reference picture reordering problem (KS)
- decoder: allow differing nal_ref_idc (!=0) in same AU (JSa)
- fix example config files (KS)
Changes for Version JM 9.8 to JM 9.7
------------------------------------
- encoder/decoder: fix monochrome pred_weight_table syntax (MT)
- encoder/decoder: fix cropping_flag usage (KS)
- encoder: fix frame_num for reference B pictures (AT)
Changes for Version JM 9.7 to JM 9.6
------------------------------------
- encoder: revert zero motion vector change in low complexity mode (YH)
- encoder: fix 4:2:2 encoding (KS)
- encoder: fix mb_qp_delta CABAC context selection (KS)
- encoder: weighted prediction fix
- encoder: fix frame_poc setting (AS)
- decoder: fix direct mode rare case problem (AS)
- decoder: fix pic_struct parsing in timing SEI
- decoder: fix parsing of filler data SEI
- encoder/decoder: fix deblocking filter strength calculation for negative POC (AS/KS)
- encoder/decoder: fix frame_poc setting (AS)
- encoder/decoder: fix SE_TRANSFORM_SIZE usage (KS)
- encoder: updates to explicit hierarchical coding and picture coding structures (AT)
- encoder: update/enhance control of log2_max_pic_order_cnt_lsb_minus4 and log2_max_frame_num_minus4 (AT)
- encoder: addition of computation of Sequence Level PSNR statistics (AT)
- encoder: fix frame_num setting for pyramid coding (AT)
- encoder/decoder: fix invalid line in deblocking filter (PL)
Changes for Version JM 9.6 to JM 9.5
------------------------------------
- encoder: FME fixes (WF)
- encoder: fixes for I_PCM and encoder output (SN)
- encoder: fix rounding for CABAC stuffing
- encoder: lossless mode fixes (WK)
- encoder: increase maximum slice size (WK/KS)
- add platform specific notes to readme.txt
Changes for Version JM 9.5 to JM 9.4
------------------------------------
- encoder: open GOP support (AT)
- encoder: I_PCM encoding/decoding for CAVLC (AT)
- encoder: I_PCM decoding for non-4:2:0 and CAVLC >8bit (AT)
- encoder: fix encoder/decoder mismatch for non-rd-opt coding (AT)
- encoder: fix crash with bi-predictive search (AT)
- encoder: further speed optimization (AT)
- encoder: fix mismatch in low complexity mode (YH/AT)
- encoder: fix zero motion vector in low complexity mode (YH)
- encoder: fix 8:9:9 bit support (WK)
- encoder: FME improvements (WF)
- encoder/decoder: fix RCT Cb/Cr order (WK)
Changes for Version JM 9.4 to JM 9.3
------------------------------------
- encoder: fast mode implementation (BJ)
- encoder: FME update (WF)
- encoder: adaptive quantization rounding offset (GS/SSu/AT)
- encoder: restructure encode_one_macroblock (AT)
- encoder: weighted prediction fix (AT)
- encoder: fix reported bit rate with LastFrameNumber parameter (AT)
- encoder: fix cost initialization for Transform8x8Mode=2 (SeS)
- encoder: restrict motion vector size (AT)
- encoder: fix rate control/non-rd-opt mismatch (AT)
- encoder: cleanups (AT)
- encoder: remove memory leak and clean up PPS usage (KS)
- encoder: fix CABAC zero word calculation (KS)
- decoder: fix POC mode 0 calculation (XI)
- decoder: fix timing SEI parsing (IP)
- decoder: fix dangling field output (KS)
- decoder: fix VLC trace output (MT)
- encoder/decoder: large performance and memory usage improvements (AT/KS)
- encoder/decoder: fix CABAC CBP_block_bit (VG)
- encoder/decoder: clean up and fix usage of skip_flag (KS/AM)
- encoder/decoder: implement lossless coding for non 4:4:4 cases (SSu)
Changes for Version JM 9.3 to JM 9.2
------------------------------------
- encoder: Bi predictive ME (AT)
- encoder: encoder parameter tuning (AT)
- encoder: fix allocation in error concealment (SM)
- encoder: fix allocation in pyramid code (AT)
- encoder: fix qp_const_422 assignment (SKa)
- encoder: fix padding for automatically added borders (SKa)
- encoder: support multiple PPS (AT)
- encoder: picture RD-decision (AT)
- encoder: rate-control fix (SM)
- encoder: restrict num_ref_frames to MaxDpbSize (ZH/KS)
- encoder: allocate rate control memory depending on frame size (KS)
- decoder: open trace file only once (AT)
- decoder: remove duplicate initialization of error states (MA)
- decoder: fix timing SEI parsing (PW/KS)
- decoder: fix CABAC SI context selection (DM/KS)
- encoder/decoder: fix neighboring of TotalCoeff in CAVLC (KS/WC)
- encoder/decoder: fix PSNR calculation if cropping is enabled (KS)
Changes for Version JM 9.2 to JM 9.1
------------------------------------
- encoder: fix possible integer overflow in quantization offsets (SN/AT)
- encoder: fix I_PCM trace (SN)
- encoder: restructure code (KS)
- unixprep.sh: also convert config files (KS)
Changes for Version JM 9.1 to JM 9.0
------------------------------------
- encoder: RCT: Enabling inter mode selection (WK)
- encoder: RCT: Correcting I16 mode selection (WK)
- encoder: fix YUV header seek problem (PL)
- encoder: reduce memory usage (KS)
- encoder: remove assert in RC (KS)
- encoder: fix qpBSoffset usage (AT)
- encoder: fix stored B-pictures (KS)
- encoder: fix qp change (AT)
- encoder: fix direct mode selection (KS)
- encoder: fix wrong memory allocation in FastME code (KS)
- encoder: fix IDR encoding (LP/SKa/AT)
- encoder: fix QMatrix config file reading (KS)
- encoder: automatically add borders for picture sizes that are not multiple of 16 (KS)
- encoder: default config parameter initialization (AT)
- encoder: add checks for minimum and maximun values for each config parameter (AT)
- encoder: support for explicit lagrangian parameters (AT)
- encoder: support for explicit rounding offset parameters (AT)
- decoder: allow 4:2:0 file format for monochrome streams (LW/KS)
- decoder: fix VLC coeff reading (WZ)
- decoder: fix second chroma qp offset (TS/KS)
- decoder: fix VUI syntax (SK)
- decoder: new command line interface (AT)
- encoder/decoder: RCT: Correcting lossless coding/decoding (WK)
- encoder/decoder: fix file reading/writing for non-Intel architectures (KS)
- encoder/decoder: Fix YUV 4:0:0 output (SG)
- encoder/decoder: Fix prediction weight calculations (AT)
Changes for Version JM 9.0 to JM 8.6
------------------------------------
New Features:
- import FRExt branch (KS)
- encoder: pyramid encoding structure (AT)
- encoder/decoder: YUV 4:0:0 support (VG)
- encoder: thresholding control (AT)
Fixes/Upates:
- encoder: clean up includes (KS)
- encoder: increase maximum file name length (KS)
- encoder: fix failed merge of temporal direct fix (LP)
- encoder: fix RCT enc/dec mismatch (WK)
- encoder: fix for CAVLC neighbouring total coeff (for RDopt) (SN)
- encoder: fix for CAVLC level limit for small QP (SN)
- encoder: fix memory leaks (CS/KS)
- encoder: disallow RDOptimazation=2 (KS)
- encoder: improve parameter names(AT)
- encoder: fix rate control diff calculation (SM)
- decoder: fix QP output (AT)
- decoder: fix paired field output for increased bit depth (KS)
- decoder: fix img->quad allocation (KS)
- decoder: fix RGB file output (KS)
- decoder: don't crash on PicTiming SEI when no SPS is active (KS)
- encoder/decoder: fix gcc compiler warnings (KS)
- encoder/decoder: fix inverse DC transform (WZ/KS)
- encoder/decoder: reduce memory usage by making imgpel "unsinged short" (KS)
Changes for Version JM 8.6 to JM 8.5
------------------------------------
- encoder: fix command line checking order (KS)
- encoder: fix coded_frame flag (KS)
- encoder: fix skip mode mb pair problem (KS)
- decoder: fix macroblock counter (KS)
- decoder: fix output field pairing (KS)
- decoder: fix POC previous frame num on MMCO=5(BH)
- decoder: fix max num ref frames in poc cycle
- decoder: allow Annex B leading_zero_8bits and trailing_zero_8bits (ZH)
- decoder: fix SI decoding (MWa)
- encoder/decoder: fix dpb size (KS)
- encoder/decoder: hopefully work around VS compiler optimization bug (KS)
- encoder/decoder: remove a number of gcc warnings (KS)
Changes for Version JM 8.5 to JM 8.4
------------------------------------
- encoder: fix wrong direct mode selection for non-rd-optimized encoding (KS)
- decoder: fix RPLR (KS)
- encoder: fix rate-control for non-rd-optimized encoding (SM/KS)
- encoder: fix POC mode 1 for stored B pictures (KS)
- encoder: fix MB AFF encoder/decoder mismatch (KS)
- encoder: fix list 1 reference index selection (SN)
- encoder: fix IDR pictures and wrapping around frame_num (TK/KS)
- encoder: fix log2_max_frame_num_minus4 and log2_max_pic_order_cnt_lsb_minus4 (AT)
- encoder/decoder: align chroma sample interpolation to standard text (no real bug, only cleanup) (ZH/KS)
Changes for Version JM 8.4 to JM 8.3
------------------------------------
- encoder: fix encoder merge bug (AT)
- encoder: count parameter set bits (AT)
- decoder: spatial direct long-term support (KS)
- decoder: fix colocation problem (KS)
- decoder: fix SPS/PPS changes (KS)
- decoder: fix reordering with multiple slices (KS)
- decoder: allow paired output of unpaired fields (KS)
- decoder: fix POC on MMCO=5 (KS)
- decoder: fix picture unmarking problem (KS)
- decoder: SPS activation on buffering SEI (KS)
- decoder: weighted prediction typo (AT)
- decoder: fix CeilLog2 function (KS)
Changes for Version JM 8.3 to JM 8.2
------------------------------------
- encoder: fast motion estimation fixes und cleanup (WF)
- decoder: fix for SP decoding (ES)
- encoder/decoder: direct mode cleanup and fixes (AT)
- decoder: POC cleanup and fixes (AT)
- encoder: set log2_max_frame_num_minus4 dynamically (AT)
- decoder: fix dangling fields (KS)
- encoder/decoder: fix mismatch in B-pictures with RDOptimization=0 (KS)
- encoder/decoder: fix redundant_pic_cnt syntax element type (KS)
- encoder: fix num_slice_groups_minus1>0 bug (KS)
- decoder: fix field mmco bugs and (KS)
- decoder: fix initial reference picture list generation with long-term pictures (KS)
- decoder: fix new picture detection (KS)
- decoder: fix weighted prediction (KS/AS)
- encoder/decoder: fix max PPS id (KS)
- decoder: remove redundant variables (KS)
- decoder: re-enable non-normative error concealment for non mb-aff (KS/THi)
- decoder: several smaller fixes (KS)
Changes for Version JM 8.2 to JM 8.1a
-------------------------------------
- encoder: merge FMO (DW)
- encoder/decoder: add error/warning if DPB size is zero at specified level (KS)
- fix unixprep.sh script for Solaris /bin/sh (DD)
Changes for Version JM 8.1a to JM 8.1
-------------------------------------
- encoder/decoder: fix bug in constrained intra prediction fix (KS)
- encoder/decoder: fix version number typo (KS)
Changes for Version JM 8.1 to JM 8.0
------------------------------------
- decoder: fix I_PCM decoding for field macroblocks (AS)
- encoder: rate control fix (SM)
- encoder/decoder: fix max DPB size for level 5.0 (KS)
- encoder/decoder: fix constrained intra prediction left neighbour (KS)
- decoder: fix crash on SPS activation in SEI (KS)
- encoder/decoder: documentation updates / remove encodeiff.h (KS)
- encoder: add basic profile checks (KS)
Changes for Version JM 8.0 to JM 7.6
------------------------------------
- encoder/decoder: SP filter strength (KS)
- decoder: fix decoder snr calculation for streams that contain idr pictures (AT)
- decoder: increase NAL unit buffer size (KS)
- encoder: further statistics fixes (AW)
- encoder: fix wrong LumaPrediction4x4 call (AW)
- encoder: fix reference index writing for MB AFF with one reference frame (AW)
- decoder: fix bottom field first decoding (KS)
- encoder: add profile and level idc to config file (KS)
- encoder/decoder: determine DPB size depending on level (KS)
- encoder/deocder: fix field pairing (KS)
- encoder/deocder: fix memory allocation for reference picture list (KS)
- encoder: decrease list0 size for b slices (KS)
- encoder: make FME a config file option (TK)
- encoder: add -h help option (AT)
- encoder/decoder: fix writing of unpaired field (ZY)
- decoder: fix currMB calculation in i_pcm reading (ZY)
- decoder: set ref_pic_num for each slice (KS/AS)
- decoder: disable deblocking filter P_SLICE simplifications (KS/AS)
- decoder: "hack fix" for direct mode decoding (AT)
Changes for Version JM7.6 to JM 7.5c
------------------------------------
- encoder/decoder: temporal direct loop index fix (RV/AT/KS)
- encoder: fix memory leak (AT)
- decoder: reset the wp_offset for the implicit mode (AT)
- encoder: temporary fix for slice mode 2, Won't work with FMO (PK)
- decoder: don't reset poc of other field (OD)
- decoder: fix bw_ref_idx (AT)
- encoder/decoder: fix long_term initialization (JK)
- encoder/decoder: fix pic_num / frame_num_wrap initialization for intra sclices (JK)
- encoder/decoder: datapartition fixed (ZL)
- encoder: fix stored B pictures (AT)
- encoder: small mbuffer.c fixes (AT)
- encoder/decoder: add Visual Studio .NET workspaces (KS)
- encoder: fix random intra blocks (TSh)
- encoder: fix statistics (KS)
- encoder: fix mb delta qp CABAC context selection (KS/AT)
- encoder: Rate control fixes (SM)
- encoder/decoder: fix initial reference picture list generation for long term pictures (RV)
- encoder/decoder: fix no_output_of_prior_pics_flag handling (KS)
- encoder: FAST_ME fixes (JX)
Changes for Version JM7.5c to JM 7.5b
-------------------------------------
- encoder: add DirectInference parameter (AT)
- encoder: generate interlaced representation, only if interlaced encoding mode (AT/KS)
- encoder: fix picture aff psnr calculation (AT)
- encoder: weighted prediction fix (AT)
- decoder: small direct mode fix (AT)
- encoder/decoder: reference index fix in generation of field representation (AS)
- encoder/decoder: fix CurrPicNum for field calculation (KS)
- encoder: fix CABAC contexts for cbp and skip flag / mb aff (VG/KS)
- encoder: fix invalid usage of 8x8 temporal direct mode (KS)
- decoder: fix field psnr calculation (KS)
- encoder: don't try to output reconstructed sequence, if no file specified (AT)
- encoder: clean exit if input file reading fails (AT)
- encoder: initialize POC before initializing parameter sets (KS)
- encoder: fix POC mode 1 (KS)
- decoder: rename POC mode 1 variables to match text (KS)
- encoder/decoder: fix bottom field access in is_short_term_reference()
and is_long_term_reference() (ML)
Changes for Version JM7.5b to JM 7.5a
-------------------------------------
Bug fixes
- encoder: b-frame performance fix (KS)
- encoder: CABAC context selection fix (KS)
- encoder: fix typo in rd-opt labda calculation (AT)
- encoder: weighted prediction updates (AT)
- encoder: fix wrong reference index if NumberReferenceFrames=1 (KS)
- encoder: add IDR picture selection parameter (AT)
Changes for Version JM7.5a to JM 7.5
------------------------------------
Bug fixes
- encoder: fix direct mode coding (KS/AT)
- encoder: reenable old rd-opt labda calculation (KS/AT)
Changes for Version JM7.5 to JM 7.4
-----------------------------------
Bug fixes
- decoder: SEI parsing (JC)
- encoder: merge deblocking filter from decoder (KS)
- encoder: merge dpb fixes from decoder (KS)
- encoder: rewrite most of MB AFF handling,
support list_0 and list_1 properly, etc. (KS)
- encoder/decoder: fix first_mb_in_slice for mb aff (KS)
- encoder/decoder: deblocking filter with multiple slices (KS)
Changes for Version JM7.4 to JM 7.3
-----------------------------------
Bug fixes
- decoder: lt.ref. pic handling with sliding window (AF)
- decoder: fix CABAC parsing bug for skip_flag (KS)
- decoder: gaps in frame_num (DT)
- decoder: error message, if direct mode fails (BH)
- decoder: fix long term reference pictures (KS)
- decoder: deblocking filter for picture aff (PN)
- decoder: long term picture handling/MMCO (AF/KS)
- decoder: chroma QP offset (JS)
- decoder: frame cropping support (KS)
- decoder: deblocking filter fix (SY, others)
New features:
- decoder: I_PCM macroblock mode for VLC (DW)
- decoder: I_PCM macroblock mode for CABAC (DW)
- encoder: fast motion estimation
- encoder: rate control
Changes for Version JM7.3 to JM 7.2
-----------------------------------
Bug fixes
- encoder: DPB for field coding (SM)
- encoder: Spatial direct mode (SM)
- decoder: POC mode 2 with multiple slices (BH)
- decoder: data partitioning (has known problem in CAVLC/CABAC parsing when
constrained intra an dp are used)
- both : reference picture list generation
- both : doxygen documentation generation fixes (KS)
Changes for Encoder Version JM7.2 to JM 6.2
--------------------------------------------
Bug fixes
- DPB correlated things, such as motion search etc.(KS,SM)
- Direct mode(SM)
Changes for Decoder Version JM 7.2 to JM 7.1
--------------------------------------------
Bug fixes
- deblocking filter reference pictures (LK)
- small POC fixes (KS)
Cleanup
- remove JVT-F100 syntax support (KS)
Changes for Decoder Version JM 7.1 to JM 7.0
--------------------------------------------
Bug fixes
- loop filter (KS)
- weighted prediction (KS)
- reference list generation (KS)
- 8x8 direct modes (AT)
- constrained intra prediction (KS)
Changes for Decoder Version JM 7.0 to JM 6.2
--------------------------------------------
Bug fixes
- POC updates (BH)
- CABAC dqant and red_idx_lx contexts (KS)
- small cleanups and other fixes
Other
- removed common directory, put a copy of these file in each
encoder and decoder
Changes for Version JM 6.2 to JM 6.1b
--------------------------------------
Note: This is a decoder only release. Encoding is broken.
Bug fixes
- rewrote DPB (KS)
- rewrote most of MB AFF handling (KS)
- direct mode updates (AT)
- many other cleanups and fixes (various poeple)
Changes for Version JM 6.1b to JM 6.1a
--------------------------------------
Bug fixes
* FMO decoding (KS)
* fix motion vector predictor (HS/KS)
* intra prediction mode selection (KS)
* SPS Syntax update frame_height_in_mb -> pic_height_in_mb (KS)
* fix memory leak (KSa)
Changes for Version JM 6.1a to JM 6.1
-------------------------------------
Bug fixes
* VLC 0 sign bit (AJ)
* Correct rounding (AJ)
* Chroma intra pred mode order (AJ/KS)
* Loop filter chroma QP mapping (RaS)
* Fix memory leaks (KS)
* MB AFF fixes (HS)
* CABAC text alignment (HS)
* frame_num modulo (KS)
* intra pred allowed mode fixes (HS/KS)
Cleanups
* remove strange postfilter arrays from decoder (KS)
* remove duplicte decoder frame types (_1 and _MULT) (KS)
* clean up vlc writing (KS)
Changes for Version JM 6.1 to JM 6.0a
-------------------------------------
New features
* SEI decoding reenabled and new messages added (KS)
* Weighted Prediction Updates (JB)
* POC updated (DT)
* CABAC slice initializations (HS)
Bug fixes
* fix mb aff again (KS)
Cleanups
* remove many gcc warnings (KS)
* remove unused code (KS)
* clean up VLC reading (KS)
* allocate less memory (WYK)
Changes for Version JM 6.0a to JM 6.0
-------------------------------------
New features
* chroma loop filter update (CG)
Bug fixes
* fix overflowing buffer for large image formats (PW/KS)
* fix large memory leak (KS)
* slice coding (RaS)
* fix bit statistics (KS)
* call EBSPtoRBSP at the decoder (TS/KS)
Cleanups
* remove some of the gcc warnings and old files (KS)
Changes for Version JM 6.0 to JM 5.0h-suehring
----------------------------------------------
New features
* post-Awaji slice header and parameter sets (except POC) (KS)
Removed features
* ABT (KS)
Bug fixes
* AFF (picture and mb) (KS)
* Slice parsing with CAVLC (KS)
* CABAC byte alignment (KS)
* lots of stuff I can't remember in detail (KS)
Cleanups
* lots of stuff I can't remember in detail (KS)
Known problems
* slices have still encoder mismatch (looks like motion vector prediction)
* FMO not tested, but probably won't work
* SEI disabled (needs update to NAL units)
* weighted prediction implementation in JM 5.0g unfinished
* Error concealment disabled (needs new triggers)
* DP (???)
* I haven't merged any patches, I received since December
Changes for Version JM 5.0h-suehring to JM 5.0g
-----------------------------------------------
New features
* Sequence and Picture Parameter Sets
* writes Annex B bytestream and RTP packets
Changes for Version JM 5.0g to JM 5.0f
--------------------------------------
New features
* Changes for Weigthed Prediction (JB)
Note: This version seems to have severe performance problems
Changes for Version JM 5.0f to JM 5.0e
--------------------------------------
New features
* Reducing Pixel Dependencies for Intra-Prediction (JVT-E111) (GrC)
Changes for Version JM 5.0e to JM 5.0d
--------------------------------------
New features
* alternate scan for aff coding
Changes for Version JM 5.0d to JM 5.0c
--------------------------------------
New features
* added POC - for implementation details see changes_detail.txt (BH)
Bug Fixes
* reorder chroma intra pred modes aligned to draft (KS)
Cleanups (no functional change)
* cleaner parameter transfer for CABAC stuffing words (FB)
Changes for Version JM 5.0c to JM 5.0b
--------------------------------------
New features
* CABC Cleanup and Complexity reduction (FB)
Bug Fixes
* Chroma intra pred fix (AH/KS)
* Loop filter Clipping (AH)
Cleanups (no functional change)
* 4x4 intra prediction mode order (KS)
* remove old qp range support (simplifies loop filter) (KS)
* remove some never called code (KS)
Changes for Version JM 5.0b to JM 5.0a
--------------------------------------
New features
* CABAC cleanup (GB/DM)
Changes for Version JM 5.0a to JM 5.0
-------------------------------------
Removed features
* Intra 8x8 sub macroblocks (HS)
Bug Fixes
* Choose right data partition in RDCost_for_4x4IntraBlocks() MW
Changes for Version JM 5.0 to JM 4.4a
-------------------------------------
New features
* Changed startcode length (KS)
* SEI for (SR)
a) Unregistered (arbitrary) data
b) Registered ITU_T_t35 data
c) Random access
d) Pan Scan Information
Removed features
* Special Position (KS)
* 1/8 pel motion compensation (KS)
Bug Fixes
* Temporal Direct mode fix for bottom field (LW)
* fix statistics file
Changes for Version JM 4.4a to JM 4.4
-------------------------------------
New features
* MB AFF and CABAC (GB/HS)
Bug Fixes
* fix chroma QP mapping (AH)
Changes for Version JM 4.4 to JM 4.3a
-------------------------------------
New features
* FMO mode 3# [JVT-D095] (WYK)
* FMO modes 4#~6# [JVT-D097] (WYK)
* Scene information SEI message [JVT-D099] (WYK)
* Redundant slices [JVT-D101] (WYK)
Note: FMO is broken.
Changes for Version JM 4.3a to JM 4.3
-------------------------------------
New features
* Spare Pictures [JVT-D100] (DT)
* Signaling of Enhanced GOPs [JVT-D098] (DT)
Bug Fixes
* state table fix (BH)
* fix chroma intra prediction and MB AFF (DH)
* double decoder bitstream buffer size for HD material (KS)
* SP chroma calcultaion fix (MN)
* fix long term picture remove from buffer (DC)
Changes for Version JM 4.3 to JM 4.2a
-------------------------------------
New features
* Chroma Intra prediction (DH/GB)
Bug Fixes
* Data partitioning (TO)
* remove assert from ABT (TH/MW)
* fix for constrained intra prediction (TWa)
Note: MB AFF is broken in this version
Changes for Version JM 4.2a to JM 4.2
-------------------------------------
New features
* Loop Filter Simplification and Improvement (AJ)
Changes for Version JM 4.2 to JM 4.1c
-------------------------------------
New features
* Spatial Direct Prediction for MB AFF (AT)
Bug Fixes
* align simplified intra prediction to text (AH)
* fix simplified intra prediction for mb aff (AH)
* fix spatial direct (YK)
* fix temporal direct (YK)
* MB AFF fixes (LW,RG)
Cleanups
* clean up decode_one_slice (KS)
* removed commented out code (KS)
Changes for Version JM 4.1c to JM 4.1b
--------------------------------------
New features
* Implicit bi-predictive weighting (YK)
Bug Fixes
* MAX_QP define (AJ)
Changes for Version JM 4.1b to JM 4.1a
--------------------------------------
New features
* Simplification of Intra Prediction (AH)
Cleanups
* also always enable EncapsulatedNALPayload at the decoder (KS)
* reference frame check AFF fix (AT)
Changes for Version JM 4.1a to JM 4.1
-------------------------------------
New features
* Spatial Direct Prediction (AT)
Note: Spatial Direct Currently disabled for MB-AFF
Bug Fixes
* SP chroma bug fixed (XS)
Removed SP Switch flag from SI encoding (AT)
Corrected readSyntaxElement_fixed (AT)
* close reconstruction file only if opened (LWi)
* MB AFF fixes (AT)
Cleanups
* remove double scan routines (KS)
* always enable EncapsulatedNALPayload (KS)
Changes for Version JM 4.1 to JM 4.0d
-------------------------------------
New features
* macroblock adaptive frame/field (LW)
Changes for Version JM 4.0d to JM 4.0c
--------------------------------------
Bug Fixes
* CAVLC/AFF memory allocation (KL)
* Solaris compiler problem (MW)
* CAVLC and ABT updates
Changes for Version JM 4.0c to JM 4.0b
-------------------------------
New features
* New Macroblock modes for SP-frames [JVT-B055] (RK)
Note: some problems related to decoding of SI-frames
are reported and have to be fixed
Changes for Version JM 4.0b to JM 4.0a
-------------------------------
New features
* CAVLC [JVT-C028, D034, D036] (KL, JA)
* Low Complexity Diagonal Mode for Intra Prediction [JVT-D059] (GrC)
Bug Fixes
* Bitstream in MSB first order for CABAC (DM, GB)
Changes for Version JM 4.0a to JM 3.9a
-------------------------------
New features
* Improved CABAC [JVT-C060] (HS, GB))
* Fast Arithmetic Coding for CABAC [JVT-C061] (DM, GB)
* CABAC cleanup [JVT-D019] (GB, DM)
* CABAC and ABT [JVT-D021] (HS, DM, GH))
* New end-of-slice signaling for CABAC [JVT-D020] (HS)
Changes for Version JM 3.9a to JM 3.9
-------------------------------------
Bug Fixes
* fix ABT and VLC (MW)
* fix slice mode 2 (KS)
Changes for Version JM 3.9 to JM 3.8
------------------------------------
Bug Fixes
* fix bitstream NAL encapsulation for slice modes 1,2 and interlace (KS)
* merge interlace buffer changes (KP/KS)
* fix encoder/decoder mismatch for SP-frames (MW)
* remove unnecessary calculations (AT)
* fix SP compiling warning (FW)
* disable 8x8 intra blocks in data partitioning mode (TO)
Cleanups
* remove dead code and variables (KS)
* free all prviously allocated memory (KS)
Note:
* FMO is currently broken
Changes for Version JM 3.8 to JM 3.7
------------------------------------
New features
* Adaptive Block-size Transforms (MW)
Changes for Version JM 3.7 to JM 3.6
------------------------------------
New features
* Loop filter complexity reduction [JVT-C094] (AJ)
Changes for Version JM 3.6 to JM 3.5
------------------------------------
New features
* support for FMO, see JVT-C089-C092 (SW)
-> FMO requires RTP file format and ConstrainedIntraPrediction = 1
Bug Fixes
* many FMO and out-of-order slices related ones (SW)
* fix old QPs (KS)
* fix chroma coding (AT/KS)
* error concealment fix (YW)
Cleanups
* really remove old start codes (KS)
* remove some unused decoder functions (KS)
Note:
* in Version 3.5 and 3.6 is in the bit stream format the Slice mode broken
* RTP still has the ASCII Parameter Set format
Changes for Version JM 3.4 to JM 3.5
------------------------------------
New Features
* improved SP technique [JVT-c114] (FW)
* add syntax flag for switching (FW)
Bug Fixes
* new QP range bug fixes (chroma & SP coding) (AT/FW)
* SKIP mode support and Runlength Coding for SP frames (AT/FW)
* Modified lambda weight in RDO for SP frames (AT/FW)
Changes for Version JM 3.4 to JM 3.3
------------------------------------
New Features
* stuffing to prevent emulation of start-code [JVT-C064] (SR)
* New start-code for byte-stream format. (SR)
* New method for slice-level QP signaling [JVT-C136] (SR)
* QP range shifted to [0,51] (SR)
-> use #define _OLDSTYLEQP_ for old range
Bug Fixes
* fix single reference frame problem (AT)
* fix B-Frame coding (AT)
* fix ADAPT_LAST_GROUP (DT)
* fix bit statistics (KS)
* fix search if _FAST_FULL_ME_ disabled (KS)
Cleanups
* remove old slice-level QP signaling (KS)
* remove old start codes (KS)
* large QP handling cleanups (KS)
Changes for Version JM 3.3 to JM 3.2
------------------------------------
New Features
* Consideration of MVs of Direct Mode Macroblocks in B frame MV prediction [JVT-C127] (AT)
Bug Fixes
* fix deblocking filter for B frames [JVT-C127] (AT)
Changes for Version JM 3.2 to JM 3.1
------------------------------------
New Features
* Skip mode motion compensation as defined in JVT-C027 (JL)
Changes for Version JM 3.1 to JM 3.0
------------------------------------
New Features
* Quantization range changed from [-8,39] to [-12,39] [JVT-B039] (AH)
* Simplified rounding for transform and quantization [JVT-C136] (AH)
* Simplified formula for intra 16x16 plane prediction [JVT-C136] (AH)
Bug Fixes
* fix RTP assert (DT)
Cleanups
* remove gcc warnings (KS)
Known Problems
* AFF + 1/8 pel motion compensation broken
* if "LastFrameNumber" is used, "FramesToBeEncoded" must be >= "LastFrameNumber"
Changes for Version JM 3.0 to JM 2.1
------------------------------------
New Features
* Signaling of "Clean" Random Access Points [JVT-B042, JVT-C083] (DT)
Bug Fixes
* error concealment fixes (TO)
* constrained intra prediction (GRC)
* align intra pred to CD text (GRC)
* adaptive frame/field fixes
- lambda calculation (LW)
- average psnr output (LW)
- fix slice modes 1 and 2 (LW)
- fix data partitioning (TO)
* add adaptive frame/field parameter consistency checks (KS/LW)
* encoder frame buffer management changes for non-AFF mode (DT)
Cleanups
* remove old 6 mode intra prediction (KS)
Changes for Version JM 2.1 to JM 2.0b
-------------------------------------
New Features
* adaptive frame/field coding (LW)
Bug Fixes
* intra 4x4 prediction block availability (several people)
* DP fixes (TO)
Changes for Version JM 2.0b to JM 2.0
-------------------------------------
Bug Fixes
* fix array bounds overflow in cabac.c (KS/IM)
* fix byte sex issues in IFF (KS)
* add UNIX preparation script (KS)
Changes for Version JM 2.0 to JM 1.9
-------------------------------------
I dropped adaptive frame/field coding, so only bugfixes for this release
Bug Fixes
* decoder delta qp decoding fix (HS)
* correction of wrong calculation of written bits in CABAC mode
(correction according to the new coding engine) (DM)
* major cleanup of the routines related to the statistics reported
in stat.dat (DM):
- correction of wrong calculation of used bits for header and mode info
- addition of new table entries "motion info" and "stuffing bits"
such that the sum of all entries matches _exactly_ the
plotted number of average bits/frame, which in turn is
now equal to the number of bits reported on the console
* correction of wrong calculation of written bytes for CABAC in RTP mode (DM)
* correction of total bits/frame printed out to the data.txt file for with B-frames (JL)
* fix mprr size for new intra pred modes (GC)
* fix frame_rate calculation for B-frames (GH)
* fix restriction on reference frames for intra frame period (KS)
* first step RPSL fixes (KS)
* fix RTP assert (WYK)
* tracefile fix (DC)
* fix spelling of config file parameter "NumberReferenceFrames" (MB)
Changes for Version JM 1.9 to JM 1.8
-------------------------------------
New Features
* Loopfilter revised (PL)
* INTRA-Prediction on unfiltered content (PL)
Bug Fixes
* use for each intra pred mode one CABAC context (DM)
* increase version number (KS)
* Interim file format updates (DT)
Cleanups
* GCC compatibility, remove warnings/unused variables (KS)
* Add UNIX Makefiles (KS/HS)
Changes for Version JM 1.8 to JM 1.7
------------------------------------
New Features
* New Intra Prediction Modes [JVT-B080] (GrC)
Changes for Version JM 1.7 to JM 1.4
------------------------------------
New Features
* New Arithmetic Coding Engine [JVT-B036, Moffat/Neal/Witten ACM98]
* Improved CABAC [JVT-B101] (GB)
* Improved MB Pred Modes [JVT-B054] (HS)
Bug Fixes
* Fix MB statistics (HS)
* Compile fix ERPS test (KS)
* Restrict qp_factor for CABAC initialization (DM/KS)
* Uses MAX_QP for IFF qp encoding (KS)
* Fix decoder TR calculation (again) (AT)
* Fix wrong concealment for B-frames and TR wrap around (KS)
* Correct error handling if first slice (or first frame) was lost (TO)
* Introduced macroblock map for concealment of lost or damaged macroblocks (TO)
Changes for Version JM 1.4 to JM 1.0
------------------------------------
New Features
* Interim file format according to Appendix III of WD-1 [JVT-A003] (DT)
* Transform and Quantizer changes [JVT-B008, JVT-B038] (AH)
* VLC update [JVT-B029] (LK)
* Updated Error Rebust Macroblock Mode and Reference Frame Selection [JVT-B102] (DK)
Bug Fixes
* DP & CABAC (TO)
