The configuration data structure used by the TIVX_KERNEL_DMPAC_DOF kernel. More...

#include <hwa_dmpac_dof.h>

Data Fields
uint16_t	vertical_search_range [2]

uint16_t	horizontal_search_range

uint16_t	median_filter_enable

uint16_t	motion_smoothness_factor

uint16_t	motion_direction

uint16_t	base_predictor [2]

uint16_t	inter_predictor [2]

uint16_t	iir_filter_alpha

uint16_t	flow_vector_internal_delay_num

Detailed Description

The configuration data structure used by the TIVX_KERNEL_DMPAC_DOF kernel.

Definition at line 167 of file hwa_dmpac_dof.h.

Field Documentation

◆ vertical_search_range

uint16_t tivx_dmpac_dof_params_t::vertical_search_range[2]

Range [0, 62] Recommended = 48, 48 if horizontal_search_range is 191 then (vertical_search_range[0] (upward) + vertical_search_range[1] (downward) <= 112)

Definition at line 173 of file hwa_dmpac_dof.h.

◆ horizontal_search_range

uint16_t tivx_dmpac_dof_params_t::horizontal_search_range

Range [0, 191] Recommended value = 191 if vertical_search_range[0] = vertical_search_range[1] = 62 then horizontal_search_range <= 170

Definition at line 178 of file hwa_dmpac_dof.h.

◆ median_filter_enable

uint16_t tivx_dmpac_dof_params_t::median_filter_enable

0: Disabled; 1: Enable post-processing median filter [recommended]

Definition at line 180 of file hwa_dmpac_dof.h.

◆ motion_smoothness_factor

uint16_t tivx_dmpac_dof_params_t::motion_smoothness_factor

Range [0, 31] recommended = 24

Definition at line 182 of file hwa_dmpac_dof.h.

◆ motion_direction

uint16_t tivx_dmpac_dof_params_t::motion_direction

0 = Motion neutral, 5x5 Census Transform 1 = Forward motion 2 = Reverse motion 3 = Motion neutral, 7x Census Transform

Definition at line 187 of file hwa_dmpac_dof.h.

◆ base_predictor

uint16_t tivx_dmpac_dof_params_t::base_predictor[2]

Predictor for the base image

Definition at line 189 of file hwa_dmpac_dof.h.

◆ inter_predictor

uint16_t tivx_dmpac_dof_params_t::inter_predictor[2]

Predictor for the intermediate pyramid level

Definition at line 191 of file hwa_dmpac_dof.h.

◆ iir_filter_alpha

uint16_t tivx_dmpac_dof_params_t::iir_filter_alpha

IIR filter alpha value recommended = 0x66

Definition at line 193 of file hwa_dmpac_dof.h.

◆ flow_vector_internal_delay_num

uint16_t tivx_dmpac_dof_params_t::flow_vector_internal_delay_num

Number of internal delay slots to use for applying previous flow vector output to temporal predictor. The use of this field and the valid values it can take is as explained below:

Range [0 TIVX_DMPAC_DOF_MAX_FLOW_VECTOR_DELAY]
This field is validated and used only if temporal predictor is ON. This is a pre-condition for all the cases below. 1) When pipelining is OFF, then this field must be set to 0. The understanding is that with this configuration, external delay object shall be used for providing the input flow vector. 2) When pipelining is ON and if an external delay object is used, then this field must be set to 0. 3) When pipelining is ON and if no external delay object is used, then this field must be set to a valid non-zero value.

In case (3) above, the node stores pointers to the previous output flow vectors to be used as potential inputs later so it is important that under this configuration the higher level application does not alter the output buffer data in any way. Also, the node parameter must be configured with the buffer depth appropriately such that all the configured buffers are used and recycled during the pipelining operation.

Definition at line 214 of file hwa_dmpac_dof.h.

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

hwa_dmpac_dof.h

Data Fields