hi_mpi_ao_disable_chn

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 an AO channel.

Prototype

hi_s32 hi_mpi_ao_disable_chn(hi_audio_dev ao_dev, hi_ao_chn ao_chn)

Parameters

Parameter	Input/Output	Description
ao_dev	Input	Audio device ID. The value range is [0, 4].
ao_chn	Input	AO channel ID

Returns

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

Restrictions

When the audio-left channel or stereo channel is used for recording, ao_chn must be fixed at 0. When the audio-right channel is used for recording, ao_chn is 1.

If the attributes are set but the AO channel is disabled, a code indicating success is returned. If the attributes are not set, an error code indicating that the attributes are not configured is returned when this API is called.

Reference

For the API call sequence, see Audio Obtaining and Playing.

Parent topic: AI/AO