MmFilter_t

Filter structure

Synopsis:

See below.

Description:

This structure defines an instance of a filter returned from a call to an Addon's AODeConstructor->Create() function. The filter instance is stored as a MmFilter_t structure, whose first element is a MmElement_t structure, for easy identification.

This structure has at least the following members:

MmElement_t element

The element type (MM_ELEMENT_FILTER) and unique ID of the filter.

MmChannel_t *ichannels

The input channels for this filter.

MmFilterUser_t *user

Variables specific to this filter. You define MmFilterUser_t.

MmChannel_t *ochannels

The output channels for this filter.

const AOICtrl_t *interfaces

Interfaces for this filter.

MmGraph_t *graph

The graph that contains this filter.

Classification:

Neutrino

See also:

MmAcquireInputChannel(), MmAcquireOutputChannel(), MmChannel_t, MmDestroyFilter(), MmFindChannelsFilter(), MmFindFilter(), MmFindMediaReader(), MmFindMimetypesFilter(), MmPrintGraph()

AODeConstructor, MediaClock, MediaControl, MediaInput, MediaOutput, MediaReader, MediaWriter.

The Extending the Multimedia Framework chapter.