hi_mpi_vi_get_pipe_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	☓

Obtains the data of a physical VI pipe.

hi_s32 hi_mpi_vi_get_pipe_frame(hi_vi_pipe vi_pipe, hi_video_frame_info *frame_info, hi_s32 milli_sec)

Parameter	Input/Output	Description
vi_pipe	Input	Physical pipe ID. Value range: [0, 4)
frame_info	Output	Pointer to the VI pipe data.
milli_sec	Input	Timeout parameter. -1: blocking mode 0: non-blocking mode > 0: specific timeout interval, in ms.

Parameter

Input/Output

Description

vi_pipe

Input

Physical pipe ID.

Value range: [0, 4)

frame_info

Output

Pointer to the VI pipe data.

milli_sec

Input

Timeout parameter.

Before calling this API, you must call the hi_mpi_vi_create_pipe API to create a pipe.

Call the hi_mpi_vi_set_pipe_frame_dump_attr API to enable dump and set the depth. Otherwise, no temporary memory space is reserved internally. As a result, image data cannot be obtained.
Virtual pipes are not supported.