Adopt JVET-O0070 method 4-2.1a

Jonathan Taquet authored 5 years ago and Karsten Suehring committed 5 years ago

includes offline discussed replacement of tb(v) by ue(v) coding for alf_chroma_num_alt_filters_minus1

Hendry authored 5 years ago and Karsten Suehring committed 5 years ago

update the nonCTC cfg files

Hendry authored 5 years ago and Karsten Suehring committed 5 years ago

- Fix the entry points
- Put some validation for rectangular slice
- Bug fix for N0124 signalling for number of bits to signal bottomrightidx

This reverts merge request !580

Software implementation for N0278:
1. Added VPS encoding in encoder
2. Add new project StreamMergeApp to N-to-1 bitstream merge
3. Changed decoder to support only decoding the specified layer stream

- includes special handling for dps ID equal to zero (JVET-N0869)
- writing of parameter set can be enabled by parameter EnableDecodingParameterSet

implements:
- splitting tiles into bricks
- raster-scan tiles
- uniform and non-uniform splits
- all tiles/bricks in one slice
- each brick one slice
- PPS syntax

missing:
- rectangular tiles
- slice header syntax

further todo:
- rework slice mode 2 to use multiple tiles for byte size matching
- lots of renaming (tile->brick)

Moonmo Koo authored 5 years ago and Frank Bossen committed 5 years ago

- Previous name: Reduced Secondary Transform (RST)
- The parameter, LFNST, should be added in cfg file for enabing LFNST, i.e. LFNST = 1

Added 'FastMIP' encoder config parameter, removed condition on intra period and picture height in IntraSearch.cpp.

Xiang Li authored 5 years ago and Frank Bossen committed 5 years ago

Merge branch 'jvet-n0400-trianglenum' of https://vcgit.hhi.fraunhofer.de/XiangLi/VVCSoftware_VTM into jvet-n0400-trianglenum

#define JVET_N0127_MMVD_SPS_FLAG                          1

- tiles are in the VVC spec for 3 meeting cycles now
- cleanup helps with adaptation for tiles to current draft

VTM version 4.2

MMVD simplification by removing the two largest distance entries in the
MMVD distance table using encoder only change method.
To make the number of MMVD distance entries configurable by the
software, additionally adding 'MmvdDisNum' as a new option in the cfg files.

keep max TU in #define for possibility of keeping the parameter

TU max/min size are constants in the VVC draft. Reflecting this in the software.

Merge functionality from HM (macro JCTVC_Y0038_PARAMS). Add an additional
configuration file parameter that allows re-sending parameter sets at every
random access point.

Speed-Up for ISP when JVET_M0464_UNI_MTS is enabled. It can be enabled/disabled with the config. file parameter ISPFast.

When enabled,
-it merges all full RD intra mode lists into one,
-it tests fewer non-DCT-II transforms if ISP is likely to become the best mode and
-it stops testing intra modes for an ISP split if all sub-partitions obtained a zero-cbf.

Results in CTC:

AI -> 0.04% loss, EncT = 97%, DecT = 100%
RA -> 0.01% loss, EncT = 99%, DecT = 100%