hi_mpi_vi_disable_dev

Applicability

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

Function Description

Disables a VI device.

Prototype

hi_s32 hi_mpi_vi_disable_dev(hi_vi_dev vi_dev)

Parameters

Parameter

Input/Output

Description

vi_dev

Input

VI device ID.

Value range: [0, 4)

Returns

Restrictions

  • You need to destroy all the physical pipes bound to the VI device by calling hi_mpi_vi_destroy_pipe before disabling the VI device.
  • The function can be disabled repeatedly and no error code indicating failure will be returned.
  • After the VI device is disabled, it is completely disabled. Before calling the hi_mpi_vi_enable_dev interface to enable the VI device, you need to call the hi_mpi_vi_set_dev_attr interface again to set the attributes of the VI device.

See Also

For details about the API call sequence, see Video Data Obtaining.