hi_mpi_vo_pause_chn

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

The Atlas Training Series Product does not support this API.

Pauses a specified VO channel.

This API can be called only after the channel is enabled by calling hi_mpi_vo_enable_chn.
If the partition mode of the video layer is set to HI_VO_PARTITION_MODE_SINGLE by calling hi_mpi_vo_set_video_layer_attr, the specified channel cannot be paused. In this case, the parameters set by calling this API are invalid, but the video display result is not affected.
When video images are sent to a specified output channel for display by calling hi_mpi_vo_send_frame, at least two frames need to be rotated (that is, two hi_video_frame_info structure variables need to be defined). Otherwise, the pause function is invalid.
A channel can be paused repeatedly, and no error code indicating failure is returned.
Currently, this API does not support multiple processes.

hi_s32 hi_mpi_vo_pause_chn(int layer, int chn)

Parameter	Input/Output	Description
layer	Input	Video layer ID. Value range: [0, 9) This parameter is valid only when layer is set to 0 or 1.
chn	Input	VO channel ID. Value range: [0, 64)

Parameter

Input/Output

Description

layer

Input

Video layer ID.

Value range: [0, 9)

This parameter is valid only when layer is set to 0 or 1.

chn

Input

VO channel ID.

Value range: [0, 64)

Parent topic: VO