Features pass to the external model to make partition decisions. More...

#include <aom_external_partition.h>

Data Fields
AOM_EXT_PART_FEATURE_ID	id

aom_partition_features_before_none_t	before_part_none

aom_partition_features_none_t	after_part_none

aom_partition_features_split_t	after_part_split

aom_partition_features_rect_t	after_part_rect

aom_partition_features_ab_t	after_part_ab

aom_sb_features_t	sb_features
	Features collected for the super block.

int	mi_row
	Mi_row position of the block.

int	mi_col
	Mi_col position of the block.

int	frame_width
	Frame width.

int	frame_height
	Frame height.

int	block_size
	As "BLOCK_SIZE" in av1/common/enums.h.

int	valid_partition_types

int	update_type
	Frame update type, defined in ratectrl.h.

int	qindex
	Quantization index, range: [0, 255].

int	rdmult
	Rate-distortion multiplier.

int	pyramid_level
	The level of this frame in the hierarchical structure.

int	has_above_block
	Has above neighbor block.

int	above_block_width
	Width of the above block, -1 if not exist.

int	above_block_height
	Height of the above block, -1 if not exist.

int	has_left_block
	Has left neighbor block.

int	left_block_width
	Width of the left block, -1 if not exist.

int	left_block_height
	Height of the left block, -1 if not exist.

unsigned int	block_sse
	SSE of motion compensated residual.

unsigned int	block_var
	Variance of motion compensated residual.

unsigned int	sub_block_sse [4]
	SSE of sub blocks.

unsigned int	sub_block_var [4]
	Variance of sub blocks.

unsigned int	horz_block_sse [2]
	SSE of horz sub blocks.

unsigned int	horz_block_var [2]
	Variance of horz sub blocks.

unsigned int	vert_block_sse [2]
	SSE of vert sub blocks.

unsigned int	vert_block_var [2]
	Variance of vert sub blocks.

int64_t	tpl_intra_cost
	Intra cost, ref to "TplDepStats" in tpl_model.h.

int64_t	tpl_inter_cost
	Inter cost in tpl model.

int64_t	tpl_mc_dep_cost
	Motion compensated dependency cost in tpl model.

Detailed Description

Features pass to the external model to make partition decisions.

The encoder sends these features to the external model through "func()" defined in .....

NOTE: new member variables may be added to this structure in the future. Once new features are finalized, bump the major version of libaom.

Field Documentation

◆ id

AOM_EXT_PART_FEATURE_ID aom_partition_features::id

Feature ID to indicate active features

◆ before_part_none

aom_partition_features_before_none_t aom_partition_features::before_part_none

Features collected before NONE partition

◆ after_part_none

aom_partition_features_none_t aom_partition_features::after_part_none

Features collected after NONE partition

◆ after_part_split

aom_partition_features_split_t aom_partition_features::after_part_split

Features collected after SPLIT partition

◆ after_part_rect

aom_partition_features_rect_t aom_partition_features::after_part_rect

Features collected after RECTANGULAR partition

◆ after_part_ab

aom_partition_features_ab_t aom_partition_features::after_part_ab

Features collected after AB partition

◆ valid_partition_types

int aom_partition_features::valid_partition_types

Valid partition types. A bitmask is used. "1" represents the corresponding type is valid. The bitmask follows the enum order for PARTITION_TYPE in "enums.h" to represent one partition type at a bit. For example, 0x01 stands for only PARTITION_NONE is valid, 0x09 (00...001001) stands for PARTITION_NONE and PARTITION_SPLIT are valid.

◆ block_sse

unsigned int aom_partition_features::block_sse

SSE of motion compensated residual.

The following parameters are collected from applying simple motion search. Sum of squared error (SSE) and variance of motion compensated residual are good indicators of block partitioning. If a block is a square, we also apply motion search for its 4 sub blocks. If not a square, their values are -1. If a block is able to split horizontally, we apply motion search and get stats for horizontal blocks. If not, their values are -1. If a block is able to split vertically, we apply motion search and get stats for vertical blocks. If not, their values are -1.

◆ tpl_intra_cost

int64_t aom_partition_features::tpl_intra_cost

Intra cost, ref to "TplDepStats" in tpl_model.h.

The following parameters are calculated from tpl model. If tpl model is not available, their values are -1.

The documentation for this struct was generated from the following file:

aom/aom_external_partition.h

Data Fields