CPullPin Class (Compact 2013)
3/26/2014
CThread Class
CPullPin Class
This class is provided to allow a filter downstream from the source to create a thread and pull a media stream from an asynchronous source filter that supports the IAsyncReader interface.
Typically, this class is implemented on the input pin of a parser filter, because the DirectShow asynchronous reader filter just reads a media stream from a file and provides no parsing.
Protected Data Members
Member |
Description |
|---|---|
m_pAlloc |
Pointer to the IMemAllocator interface used by the connection. |
Member Functions
Member function |
Description |
|---|---|
Instructs the pin to start pulling data from the asynchronous reader. |
|
Aligns a LONGLONG value down to the next LONG boundary. |
|
Aligns a LONGLONG value up to the next LONG boundary. |
|
Initiates a connection from this pin to the asynchronous reader. |
|
Constructs a CPullPin object. |
|
Breaks a connection to the asynchronous reader. |
|
Retrieves the total duration of the media stream. |
|
Retrieves the asynchronous reader interface. |
|
Instructs the pin to stop pulling data from the asynchronous reader. |
|
Sets the start and stop times of the media stream. |
Overrideable Member Functions
Member function |
Description |
|---|---|
Flushes this pin and all downstream pins. |
|
Proposes an allocator for use by the asynchronous reader. |
|
Signals end of flushing operation. |
|
Sends end-of-stream notification downstream. |
|
Handles run-time errors that caused pulling to stop. |
|
Handles the arrival of data from the asynchronous reader. |
Requirements
Header |
dshow.h, |
Library |
ole32.lib, |