2003-01-24 18:08:39 +00:00
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<chapter id="cha-links">
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<title>Linking elements</title>
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<para>
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You can link the different pads of elements together so that the elements
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form a chain.
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</para>
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<figure float="1" id="sec-link">
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<title>Visualisation of three linked elements</title>
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<mediaobject>
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<imageobject>
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2003-10-08 14:34:09 +00:00
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<imagedata fileref="images/linked-elements.ℑ" format="&IMAGE;" />
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2003-01-24 18:08:39 +00:00
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</imageobject>
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</mediaobject>
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</figure>
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<para>
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By linking these three elements, we have created a very simple
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chain. The effect of this will be that the output of the source element
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(element1) will be used as input for the filter element (element2). The
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filter element will do something with the data and send the result to
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the final sink element (element3).
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</para>
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<para>
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Imagine the above graph as a simple MPEG audio decoder. The source
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element is a disk source, the filter element is the MPEG decoder and
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the sink element is your audiocard. We will use this simple graph to
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construct an MPEG player later in this manual.
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</para>
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</chapter>
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