See Also
 Important: |
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| This is retired content. This content is outdated and is no longer being maintained. It is provided as a courtesy for individuals who are still using these technologies. This content may contain URLs that were valid when originally published, but now link to sites or pages that no longer exist. |
This interface provides methods on an input pin to facilitate passing data and flush notifications from a connected output pin of an upstream filter.
When to Implement
Implement this interface on the input pin of every filter.
The CBaseInputPinclass implements this interface.
When to Use
A connected output pin uses this interface to retrieve an IMemAllocatorinterface, to pass media samples to the input pin, and to flush pending buffers downstream.
Methods in Vtable Order
The following table shows the methods that appear in the Vtable beneath the standard COM methods inherited from IUnknown.
| Method | Description |
|---|---|
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Returns the allocator interface that this input pin proposes as the interface for the output pin to use. |
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Notifies the input pin as to which allocator the output pin is actually going to use. |
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Optional method to use if the filter has specific alignment or prefix requirements but could use an upstream allocator. |
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Receives the next block of data from the stream. |
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Receives the next block of data from the stream. This method behaves similarly to the IMemInputPin::Receivemethod, but it works with multiple samples. |
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Determines if sending the IMemInputPin::Receivemethod might block. |
Requirements
| Windows Embedded CE | Windows CE 2.12 and later |
| Windows Mobile | Pocket PC for Windows Mobile Version 5.0 and later, Smartphone for Windows Mobile Version 5.0 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
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