hi_mpi_vpss_release_chn_frame

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

The Atlas Training Series Product does not support this API.

Description

Releases a frame of image from a channel.

Restrictions

After obtaining image data by calling hi_mpi_vpss_get_chn_frame, call this API to release resources in a timely manner.

Prototype

hi_s32 hi_mpi_vpss_release_chn_frame(hi_vpss_grp grp, hi_vpss_chn chn, const hi_video_frame_info *frame_info);

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)
frame_info	Input	Image information.

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)

frame_info

Input

Image information.

Returns

0: success
Other values: failure. For details, see VPSS Return Codes.

Parent topic: VPSS