hi_mpi_ao_get_chn_delay

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	☓

Obtains the current audio delay of an AO channel.

hi_s32 hi_mpi_ao_get_chn_delay(hi_audio_dev ao_dev, hi_ao_chn ao_chn, hi_u32 *milli_sec)

Parameter	Input/Output	Description
ao_dev	Input	Audio device ID. The value range is [0, 4].
ao_chn	Input	AO channel ID.
milli_sec	Output	Pointer to the audio delay, in milliseconds.

This API must be called after an AO channel is successfully enabled.
It obtains the current audio delay of an AO channel. When the queried delay is 0, the system stops waiting and enters the process to stop playing.

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

Parent topic: AI/AO