hi_mpi_vo_disable

Applicable Products

Product	Supported
Ascend 950PR / Ascend 950DT	☓
Atlas A3 training products / Atlas A3 inference products	☓
Atlas A2 training products / Atlas A2 inference products	☓
Atlas 200I/500 A2 inference products	√
Atlas inference products	☓
Atlas training products	☓

Function

Disables a VO device.

Prototype

hi_s32 hi_mpi_vo_disable(hi_vo_dev dev)

Parameters

Parameter

Input/Output

Description

dev

Input

VO device ID.

Value range: [0, 2)

Returns

0: success
Other values: failure. For details, see VO Return Codes.

Restrictions

The video layer of a device must be disabled before the device is disabled.
Before disabling a device, disable the write-back function if available.
After a device is disabled, call hi_mpi_vo_set_pub_attr again to set the public attributes of the device before enabling it.
Currently, this API does not support multiple processes.

Reference

For the API call sequence, see Video Decoding, Processing, and Display (NVR Scenario).

Parent topic: VO