hi_mpi_vo_disable_video_layer

Product	Supported
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	☓

Disables a video layer.

hi_s32 hi_mpi_vo_disable_video_layer(hi_vo_layer layer)

Parameter	Input/Output	Description
layer	Input	VO layer ID. Value range: [0, 9) Graphics layers and cascade video layers are not supported.

Parameter

Input/Output

Description

layer

Input

VO layer ID.

Value range: [0, 9)

Graphics layers and cascade video layers are not supported.

Before disabling a video layer, ensure that all channels at the video layer are disabled.
When a video layer is disabled in non-passthrough mode, if you do not release image buffers obtained from the VO, the error code HI_ERR_VO_BUSY is returned, indicating that the VB resources created by the VO are not released. This problem usually occurs when the obtained images on the screen are not released.
Before disabling a video layer, ensure that the write-back function of the device is disabled.
Currently, this API does not support multiple processes.