Microsoft Speech SDK
SAPI 5.1
ISpSREngineSite::SetBufferNotifySize
ISpSREngineSite::SetBufferNotifySize
controls how much data will be available to read before this event gets set. This method is used in conjunction with the hDataAvailable Win32 event that is passed as a parameter in ISpSREngine::RecognizeStream.HRESULT SetBufferNotifySize(
ULONG cbSize
);
Parameters
- cbSize
- [in] The minimum amount of data that should be available before the data available event is set.
Return values
| Value | Description |
|---|---|
| S_OK | Function completed successfully. |
| SP_UNSUPPORTED_ON_STREAM_INPUT | Function call has no effect as this is a non-real time audio stream. |
| FAILED(hr) | Other appropriate error message. |
Remarks
This can be used if an engine calls Read only when at least a certain amount of data is available.
On non-real time streams, for example when reading from a wave file, this event will always be set, as all the data in the file is always available for reading. This method will return SP_UNSUPPORTED_ON_STREAM_INPUT in this case.
This method can only be called while the SR engine is inside a ISpSREngine::RecognizeStream call, although it can be called on any thread.