IMFDeviceTransformCallback::OnBufferSent method (mftransform.h)

Called when system-allocated frame buffers are sent to the device driver.

Syntax

HRESULT OnBufferSent(
  IMFAttributes *pCallbackAttributes,
  DWORD         pinId
);

Parameters

pCallbackAttributes

The attributes containing the callback data. The System-allocated frame buffer information is stored in the attribute with the MF_DMFT_FRAME_BUFFER_INFO key.

pinId

The identifier of the device pin to which the frame buffers are sent.

Return value

If this method succeeds, it returns S_OK. Otherwise, it returns an HRESULT error code.

Remarks

The frame buffer header information provided by this callback is read-only. You should not try to allocate, deallocate, open, or close anything within the header.

Requirements

See also

IMFDeviceTransformCallback