nertc.IAudioFrameObserver Interface Reference

Public Member Functions
void	OnAudioFrameDidRecord (RtcAudioFrame frame)
void	OnAudioFrameWillPlayback (RtcAudioFrame frame)
void	OnMixedAudioFrame (RtcAudioFrame frame)
void	OnPlaybackAudioFrameBeforeMixing (ulong userId, RtcAudioFrame frame, ulong cid)

Detailed Description

The voice observer object.
Some APIs allow you to modify the content that data points to in the frame. However, you cannot modify the format. If you need to modify the format, you must call the corresponding setting interface.

Member Function Documentation

OnAudioFrameDidRecord()

void nertc.IAudioFrameObserver.OnAudioFrameDidRecord

(

RtcAudioFrame

frame

)

Callback called when audio data is captured.

Note

• Captured audio data supports read/write
• Callback is triggered when local audio data is captured

Parameters

frame

Audio frame.

OnAudioFrameWillPlayback()

void nertc.IAudioFrameObserver.OnAudioFrameWillPlayback

(

RtcAudioFrame

frame

)

Callback called when audio data is playing.

Note

• Captured audio data supports read/write
• Callback is triggered when local audio data is captured

Parameters

frame

Audio frame.

OnMixedAudioFrame()

void nertc.IAudioFrameObserver.OnMixedAudioFrame

(

RtcAudioFrame

frame

)

Callback called when captured audio data is mixed.

Note

• Captured audio data supports read-only
• Callback is triggered when local audio data is captured

Parameters

frame

Audio frame.

OnPlaybackAudioFrameBeforeMixing()

void nertc.IAudioFrameObserver.OnPlaybackAudioFrameBeforeMixing	(	ulong	userId,
		RtcAudioFrame	frame,
		ulong	cid
	)

Gets the raw audio data of a specified remote user before audio mixing.
After the audio observer is registered, if the remote audio is subscribed by default and the remote user enables the audio, the SDK triggers this callback when the audio data before audio mixing is captured, and the audio data is returned to the user.

Note

The returned audio data is read-only.

Since

V4.5.0

Parameters

userId	The ID of a remote user.
frame	The audio frame.
cid	The ID of the channel. In multi-channel scenarios, channelId is used to identify different channels.

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The documentation for this interface was generated from the following file:

• AudioFrameObserver.cs