hi_mpi_vi_release_chn_frame

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

Releases a frame of image obtained from a VI channel.

hi_s32 hi_mpi_vi_release_chn_frame(hi_vi_pipe vi_pipe, hi_vi_chn vi_chn, const hi_video_frame_info *frame_info)

Parameter	Input/Output	Description
vi_pipe	Input	Pipe ID. Value range: [0, 12)
vi_chn	Input	VI channel ID. Value range: [0, 1)
frame_info	Input	Structure of the VI frame information.

Parameter

Input/Output

Description

vi_pipe

Input

Pipe ID.

Value range: [0, 12)

vi_chn

Input

VI channel ID.

Value range: [0, 1)

frame_info

Input

Structure of the VI frame information.

This interface must be used together with the hi_mpi_vi_get_chn_frame interface. The number of times that this interface is invoked must be the same as the number of times that this interface is invoked. Otherwise, an error is reported.
You need to call the hi_mpi_vi_get_chn_frame API to obtain frame_info, and then transfer the obtained frame_info to this API. Otherwise, the memory may fail to be released.