JVET-O1143: motion and in-loop filter low-level operations adaptation when subpic boundaries are treated as pic boundaries

Brian Heng authored 5 years ago and Karsten Suehring committed 5 years ago

  - Remove bricks and related syntax.
  - Add new tile / slice syntax from P1004.
  - Fix cross tile / slice prediction bugs.
  - Update config files and documentation with new tile / slice config options.

Brian Heng authored 5 years ago and Karsten Suehring committed 5 years ago

  - Add picture header and related syntax changes.

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)

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