CTransInPlaceFilter Class (Compact 2013)

3/26/2014

CTransInPlaceFilter Class

This is an abstract base class that provides support for a simple transform filter with a single input and a single output.

It is derived from the CUnknown class, and supports the IBaseFilter interface, the IMediaFilter interface, and two pins.

Each pin supports the IPin interface and uses the shared memory transport based on the IMemInputPin interface.

The filter uses classes derived from the CBaseMediaFilter class to support IBaseFilter and IMediaFilter.

The input pin is derived from the CBaseInputPin class, and the output pin is derived from the CBaseOutputPin class.

Protected Data Members

Member	Description
m_idTransInPlace	Performance-measuring identifier.

Member function	Description
Copy	Retrieves a pointer to an identical copy of a media sample.
CTransInPlaceFilter	Constructs a CTransInPlaceFilter object.
InputPin	Retrieves a pointer to the input pin associated with the filter.
OutputPin	Retrieves a pointer to the output pin associated with the filter.

Member function	Description
CheckTransform	Verifies that the media type is supported by input and output pins.
CompleteConnect	Reconnects the input or output pin if necessary.
DecideBufferSize	Determines the size of the transport buffer.
GetMediaType	Returns the media type to be used by the output pin.
GetPin	Returns a pin if an index is specified.
Receive	Receives the sample, calls the derived class's Transform member function, and then delivers the sample.
RegisterPerfId	Registers a performance measurement identifier (if PERF is defined).
Transform	Performs transformation operations in place on the IMediaSample interface (pure virtual).

Header	dshow.h, Streams.h
Library	ole32.lib, Ole32auth.lib, Strmbase.lib, Strmiids.lib, uuid.lib