Microsoft Speech SDK
SAPI 5.1
ISpStreamFormatConverter::ScaleConvertedToBaseOffset
ISpStreamFormatConverter::ScaleConvertedToBaseOffset maps a stream offset from the converted stream to the equivalent offset in the base stream.
HRESULT ScaleConvertedToBaseOffset(
ULONGLONG ullOffsetConvertedStream,
ULONGLONG *pullOffsetBaseStream
);
Parameters
- ullOffsetConvertedStream
- The offset of the output (converted) stream.
- pullOffsetBaseStream
- The equivalent offset in the base (unconverted) stream.
Return values
| Value | Description |
|---|---|
| S_OK | Function completed successfully. |
| E_POINTER | pullOffsetBaseStream is invalid. |
| SPERR_UNINITIALIZED | The base stream has not been initialized. |
Remarks
When performing a mapping with a compressed format, it is possible to introduce small rounding errors, since the content of the audio is not used to perform the conversion.