vpc_set_chn_workspace

Applicability

Product	Supported
Atlas 350 Accelerator Card	√
Atlas A3 training product/Atlas A3 inference product	√
Atlas A2 training product/Atlas A2 inference product	√
Atlas training product	x
Atlas inference product	x
Atlas 200I/500 A2 inference product	√

Description

Allocates internal buffers based on the maximum width and height of the input and output images. The allocated buffers are automatically released when the channel is destroyed.

Prototype

C Prototype

hi_s32 hi_mpi_vpc_set_chn_workspace(hi_vpc_chn chn, hi_vpc_workspace_param *workspace_param, hi_u32 param_cnt)

Python Function

ret = acl.himpi.vpc_set_chn_workspace(chn, workspace_param, param_cnt)

Parameters

Parameter	Description
chn	Int, channel ID for image processing.
workspace_param	List, array with elements of type hi_vpc_workspace_param dictionary. The value of hi_vpc_workspace_param["func"] needs to be set based on the used remapping or affine transformation function. If two functions of remapping and affine transformation are involved in an application, the hi_vpc_workspace_param array may include two elements, where hi_vpc_workspace_param["func"] of one element is set to REMAP, and hi_vpc_workspace_param["func"] of the other element is set to AFFINE.
param_cnt	Int, array length, which must be the same as the length of the workspace_param array.

Parameter

Description

chn

Int, channel ID for image processing.

workspace_param

List, array with elements of type hi_vpc_workspace_param dictionary.

The value of hi_vpc_workspace_param["func"] needs to be set based on the used remapping or affine transformation function.

If two functions of remapping and affine transformation are involved in an application, the hi_vpc_workspace_param array may include two elements, where hi_vpc_workspace_param["func"] of one element is set to REMAP, and hi_vpc_workspace_param["func"] of the other element is set to AFFINE.

param_cnt

Int, array length, which must be the same as the length of the workspace_param array.

Return Value

Return Value	Description
ret	Int, error code. 0 indicates success. Other values indicate failure. For details, see VPC Return Codes.

Restrictions

For each channel, this API can be set only once and cannot be modified later.

Parent topic: VPC APIs