Microsoft Speech Platform
ISpStreamFormatConverter::SetBaseStream
ISpStreamFormatConverter::SetBaseStream sets an audio stream to be wrapped by the format converter. The format converter is a stream object that encapsulates the base stream and performs format conversion on the fly during read/write operations.
HRESULT SetBaseStream(
ISpStreamFormat *pStream,
BOOL fSetFormatToBaseStreamFormat,
BOOL fWriteToBaseStream
);
Parameters
- pStream
- [in] The stream to be wrapped. If NULL, the current base stream is released and any associated resources are released.
- fSetFormatToBaseStreamFormat
- [in] Flag specifies that the converter's stream format will be set to the same format as the base stream (set up as a pass through).
If pStream == NULL and this is set to TRUE, the format converter's stream format is reset to be undefined.
- fWriteToBaseStream
- [in] If TRUE, data will be written to the base stream. If FALSE, data will be read from the base stream. The format converter can only be in one I/O mode or the other at a time.
Return values
Value | Description |
---|---|
S_OK | Function completed successfully. |
E_INVALIDARG | pStream was invalid. |