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Performs a synchronous read of the data.
HRESULT SyncReadAligned( IMediaSample * pSample );
Parameters
- pSample
- Sample to read.
Return Values
Returns an HRESULTvalue that depends on the implementation of the interface. Current DirectShow implementation return values include:
Value Description VFW_E_BADALIGN An invalid alignment was specified. HRESULT_FROM_WIN32 Win32 error. S_FALSE Size changed (probably due to end of file). S_OK Success. Remarks
The sample passed in must have been acquired from the agreed allocator. The start and stop positions must be aligned equivalent to an IAsyncReader::Request/ IAsyncReader::WaitForNextpair, but may avoid the need for a thread on the source filter.