IMFASFIndexer::GetIndexWriteSpace method (wmcontainer.h)
Retrieves the size, in bytes, of the buffer required to store the completed index.
Syntax
HRESULT GetIndexWriteSpace(
[out] QWORD *pcbIndexWriteSpace
);
Parameters
[out] pcbIndexWriteSpace
Receives the size of the index, in bytes
Return value
The method returns an HRESULT. Possible values include, but are not limited to, those in the following table.
| Return code | Description |
|---|---|
|
The method succeeded. |
|
The index has not been committed. For more information; see Remarks. |
Remarks
Use this method to get the size of the index and then allocate a buffer big enough to hold it.
The index must be committed with a call toIMFASFIndexer::CommitIndex before calling IMFASFIndexer::GetIndexWriteSpace. If the index is not committed before GetIndexWriteSpace is called, then MF_E_INDEX_NOT_COMMITTED will be returned as a result.
Call IMFASFIndexer::GetCompletedIndex to write the completed index into a media buffer.
You cannot use this method in a reading scenario. You can only use this method when writing indexes.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Windows Vista [desktop apps only] |
| Minimum supported server | Windows Server 2008 [desktop apps only] |
| Target Platform | Windows |
| Header | wmcontainer.h |
| Library | Mfuuid.lib |