CTransformInputPin Class
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This class implements the input pin of a simple transform filter. It is the class assigned to the m_pInput data member of the CTransformFilter class. Typically, you can create objects derived from CTransformFilter without modifying the CTransformInputPin class. That is, you can usually override the member functions in CTransformFilter that are called by member functions of this class. This means that you need not derive your own classes for either of the pin classes.
However, if you want to override this class and have your filter class derived from CTransformFilter, you must override the CTransformFilter::GetPin member function to create pins of your derived class.
Protected Data Members
| Member | Description |
|---|---|
| m_pTransformFilter | Pointer to the owning CTransformFilter object. |
Member Functions
| Member function | Description |
|---|---|
| CTransformInputPin | Constructs a CTransformInputPin object. |
| CurrentMediaType | Retrieves the media type currently assigned to the filter. |
Overrideable Member Functions
| Member function | Description |
|---|---|
| BreakConnect | Informs the derived class when the connection is broken. |
| CheckConnect | Informs the derived class when the connection process is starting. |
| CheckMediaType | Determines if the pin can use a specified media type. |
| CheckStreaming | Verifies conditions for continuing with a streaming operation. |
| CompleteConnect | Informs the derived class when the connection process has completed. |
| SetMediaType | Informs the derived class when the media type is established for the connection. |
Implemented IPin Methods
| Method | Description |
|---|---|
| BeginFlush | Informs the pin to begin a flush operation. |
| EndFlush | Informs the pin to end a flush operation and notifies the pin that it can start accepting data again. |
| EndOfStream | Informs the input pin that no additional data is expected until a new run command is issued. |
| NewSegment | Specifies that samples following this call are grouped as a segment with a given start time, stop time, and rate. |
| QueryId | Retrieves an identifier for the pin. |
Implemented IMemInputPin Methods
| Method | Description |
|---|---|
| Receive | Receives the next block of data from the stream. |
Requirements
DirectShow applications and DirectShow filters have different include file and link library requirements. See Setting Up the Build Environment for more information.
OS Versions: Windows CE 2.12 and later. Version 2.12 requires DXPAK 1.0 or later.
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Last updated on Wednesday, April 13, 2005
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