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4/8/2010

Transforms the data in pSamplein place.

Syntax 

virtual HRESULT Transform(
  IMediaSample* 
pSample
) PURE;

Parameters

pSample

Pointer to the input IMediaSampleinterface.

Return Value

Returns an HRESULTvalue that depends on the implementation.

HRESULTcan be one of the following standard constants, or other values not listed.

Value Description

E_FAIL

Failure.

E_POINTER

Null pointer argument.

E_INVALIDARG

Invalid argument.

E_NOTIMPL

Method is not supported.

S_OK or NOERROR

Success.

Remarks

You must supply this member function in the derived class to perform the actual work of your filter.

This member function is called by CTransInPlaceFilter::Receivebefore passing the sample on to the downstream filter.

Transformcan return S_FALSE to indicate that the sample should not be delivered downstream.

Requirements

Windows Embedded CE Windows CE 2.12 and later
Note Microsoft DirectShow applications and DirectShow filters have different include file and Library requirements
For more information, see Setting Up the Build Environment,
Version 2.12 requires DXPAK 1.0 or later