Graphics Reference
In-Depth Information
a
CU Size > min CU Size
CU Size = min CU Size
part_mode
PART_2Nx2N
Inferred
1
PART_NxN
Not Allowed
0
b
CU Size > min CU Size
CU Size = min CU Size
part_mode
AMP
disabled
CU Size =
8x8
CU Size >
8x8
AMP enabled
PART_2Nx2N
1
1
1
1
PART_Nx2N
0 1
0 1 1
0 1
0 1
PART_2NxN
0 0
0 0 1
0 0
0 0 1
PART_NxN
0 0 0
PART_2NxnU
0 1 0
0
PART_2NxnD
0 1 0
1
PART_nLx2N
0 0 0
0
PART_nRx2N
0 0 0
1
Select AMP
Use Asymmetric Partitions (AMP)
Direction of PU
Partition into smaller PU
Fig. 8.7
Context selection and binarization of
part_mode
.
Underlined symbols
are bypass
coded. (
a
) Intra-coded CU, (
b
) inter-coded CU
the given direction. If the CU size is equal to the minimum allowed CU size, AMP
is not allowed and truncated unary coding is used to indicate if the partitions are
PART_Nx2N, PART_2NxN, and PART_NxN, respectively.
10
A different context is
10
Note that the minimum allowed inter-coded PART_NxN size is 8
8, so for CU size equal to
8
8, the only allowed partitions are PART_2NxN and PART_Nx2N, and cMax of 2 is used for
truncated unary.
