IMFDeviceTransform::FlushInputStream method (mftransform.h)

  • Article

The FlushInputStream method flushes a Device MFT’s input stream.

Syntax

HRESULT FlushInputStream(
  [in] DWORD dwStreamIndex,
  [in] DWORD dwFlags
);

Parameters

[in] dwStreamIndex

Stream ID of the input stream which needs to be flushed.

[in] dwFlags

Contains the HRESULT of flushing the corresponding devproxy output stream.

Return value

The method returns an HRESULT. Possible values include but not limited to values given in the following table.

Return code Description
S_OK
 Transitioning the stream state succeeded.
MF_E_INVALIDREQUEST
 Device MFT could not support the request at this time.
MF_E_INVAILIDSTREAMNUMBER
 An invalid stream ID was passed.
MF_E_INVALID_STREAM_STATE
 The requested stream transition is not possible.

Remarks

This interface method helps to flush a Device MFT’s input stream.

Device MFT should drop all samples in its queues and reset all its internal data structures related to that input stream. This is equivalent to resetting the input stream. The media type and stream state must not change.

When called

When the input stream needs to be reset, device transform manager (DTM) would call this method.

Requirements

Requirement Value
Minimum supported client Windows 10, version 1703
Target Platform Windows
Header mftransform.h

See also

IMFDeviceTransform