IAMCrossbar interface

The IAMCrossbar interface routes signals from an analog or digital source to a video capture filter.

This interface is implemented by the Analog Video Crossbar Filter. The Analog Video Crossbar filter is modeled after a general switching matrix, with n inputs and m outputs. For example, a video card might have two external connectors: a coaxial connector for TV, and an S-video input. These would be represented as input pins on the filter. To select one of the inputs, an application would use the IAMCrossbar interface to "route" an input pin to the filter's output pin, by calling the IAMCrossbar::Route method.

Members

The IAMCrossbar interface inherits from the IUnknown interface. IAMCrossbar also has these types of members:

Methods

The IAMCrossbar interface has these methods.

MethodDescription
CanRoute

Queries whether a specified input pin can be routed to a specified output pin.

get_CrossbarPinInfo

Retrieves information about a specified pin.

get_IsRoutedTo

Retrieves the input pin that is currently routed to the specified output pin.

get_PinCounts

Retrieves the number of input and output pins on the crossbar filter.

Route

Routes an input pin to an output pin.

 

Requirements

Minimum supported client

Windows 2000 Professional [desktop apps only]

Minimum supported server

Windows 2000 Server [desktop apps only]

Header

Strmif.h (include Dshow.h)

Library

Strmiids.lib

See also

Working with Crossbars

 

 

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