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hi_mpi_vpc_get_process_result

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

The Atlas Training Series Product does not support this API.

Description

Obtains the image processing result after a task is complete.

The VPC functional APIs are asynchronous (for example, hi_mpi_vpc_crop). Therefore, it is necessary to call this API to obtain the processing result after the task processing is complete.

Prototype

hi_s32 hi_mpi_vpc_get_process_result(hi_vpc_chn chn, hi_u32 task_id, hi_s32 milli_sec)

Parameters

Parameter

Input/Output

Description

chn

Input

Channel ID for image processing.

task_id

Input

Task ID.

The task ID is used to determine the task whose result data needs to be obtained.

The task ID can be obtained after the crop and resize APIs are called. For details, see hi_mpi_vpc_resize to hi_mpi_vpc_batch_crop_resize_make_border.

milli_sec

Input
Timeout interval (ms).
  • -1: blocking mode.
  • 0: non-blocking mode.
  • > 0: timeout interval (timeout mode). The timeout interval varies with the operating system. The deviation is generally within a time slice of an operating system. For example, if the time slice of an operating system is 4 ms and the value of milli_sec is set to 1, the actual timeout interval ranges from 1 ms to 5 ms. When the CPU load is high, the timeout interval may fluctuate.

Returns

See Also

For details about the API call sequence and example, see Typical Functions of VPC.

Parent topic: VPC