Opened 3 years ago

Closed 3 years ago

#588 closed defect (fixed)

Constraint on the maximum bits for a CTU in profile&level definition

Reported by: zhou Owned by:
Priority: minor Milestone:
Component: spec Version:
Keywords: Cc: ksuehring, bbross, XiangLi, fbossen, jvet@…

Description

According to the decision on JVET-P0188, only a picture-level constraint the same as in HEVC should be established, while the CTU level constraint is seen as no longer really needed as it creates encoder implementation difficulties.

Recommended text changes:

Delete

A.3.1 General
The variable RawCtuBits is derived as follows:
RawCtuBits = CtbSizeY * CtbSizeY * BitDepthY +

2 * ( CtbWidthC * CtbHeightC ) * BitDepthC (A 1)

In A.3.2 delete
– The number of times read_bits( 1 ) is called in clauses 9.3.4.3.3 and 9.3.4.3.4 when parsing coding_tree_unit( ) data for any CTU shall be less than or equal to 5 * RawCtuBits / 3.

In A.3.3 delete

– The number of times read_bits( 1 ) is called in clauses 9.3.4.3.3 and 9.3.4.3.4 when parsing coding_tree_unit( ) data for any CTU shall be less than or equal to 5 * RawCtuBits / 3.

Change history (2)

comment:1 Changed 3 years ago by yk

Thanks! Fixed in JVET-P2001-v10.

comment:2 Changed 3 years ago by yk

  • Resolution set to fixed
  • Status changed from new to closed
Note: See TracTickets for help on using tickets.