文档

hi_mpi_vpss_enable_chn

The Atlas 200/300/500 Inference Product does not support this API.

The Atlas Training Series Product does not support this API.

Description

Enables a VPSS channel.

Restrictions

  • Call hi_mpi_vpss_set_chn_attr to set channel attributes before calling this API to enable a channel.
  • When this API is called repeatedly to enable the same channel, a success message is returned.
  • A VPSS group must have been created. For details, see hi_mpi_vpss_create_grp.

Prototype

hi_s32 hi_mpi_vpss_enable_chn(hi_vpss_grp grp, hi_vpss_chn chn);

Parameters

Parameter

Input/Output

Description

grp

Input

VPSS group ID.

The value range is [0, 264). If the 3DNR function is enabled by setting the hi_vpss_grp_attr.nr_en parameter of the hi_mpi_vpss_create_grp API, the value range of the VPSS group ID is [256, 268).

chn

Input

VPSS channel ID.

Value range: [0, 2)

Returns

Parent topic: VPSS