Documentation

acl.himpi.vpc_get_process_result

C Prototype

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

Python Function

ret = acl.himpi.vpc_get_process_result(chn, task_id, milli_sec)

Function Usage

Obtains the image processing result after a task is complete.

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

The Atlas 200/300/500 Inference Product does not support this API in the current version.

The Atlas Training Series Product does not support this API in the current version.

Input Description

chn: int, image processing channel ID.

milli_sec: int, 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.
task_id: task ID.

Return Value

ret: int, error code.

  • 0 indicates success.
  • Other values: failure. For details, see VPC Return Codes.

Reference

For details about the API call sequence, see VPC.
Parent topic: VPC APIs