IXAudio2VoiceCallback interface
The IXAudio2VoiceCallback interface contains methods that notify the client when certain events happen in a given IXAudio2SourceVoice.
This interface should be implemented by the XAudio2 client. XAudio2 calls these methods through an interface pointer provided by the client in the IXAudio2::CreateSourceVoice method. Methods in this interface return void, rather than an HRESULT.
See the XAudio2 Callbacks topic for restrictions on callback implementation.
Methods
The IXAudio2VoiceCallback interface has these methods.
| Method | Description |
|---|---|
| OnBufferEnd |
Called when the voice finishes processing a buffer. |
| OnBufferStart |
Called when the voice is about to start processing a new audio buffer. |
| OnLoopEnd |
Called when the voice reaches the end position of a loop. |
| OnStreamEnd |
Called when the voice has just finished playing a contiguous audio stream. |
| OnVoiceError |
Called when a critical error occurs during voice processing. |
| OnVoiceProcessingPassEnd |
Called just after the processing pass for the voice ends. |
| OnVoiceProcessingPassStart |
Called during each processing pass for each voice, just before XAudio2 reads data from the voice's buffer queue. |
Remarks
Platform Requirements
Windows 10 (XAudio2.9); Windows 8, Windows Phone 8 (XAudio 2.8); DirectX SDK (XAudio 2.7)
Requirements
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Header |
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|---|---|
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Library |
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See also
- XAudio2 Interfaces
- XAudio2 Callbacks
- How to: Use Source Voice Callbacks
- How to: Stream a Sound from Disk