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83 lines
2.7 KiB
Text
83 lines
2.7 KiB
Text
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<chapter id="cha-plugins">
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<title>Plugins</title>
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<para>
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Extensions to GStreamer can be made using a plugin mechanism. This is
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used extensively in GStreamer even if only the standard package is
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being used: a few very basic functions reside in the core library, and
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all others are in a standard set of plugins.
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</para>
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<para>
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Plugins are only loaded when needed: a plugin registry is used to
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store the details of the plugins so that it is not neccessary to load
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all plugins to determine which are needed.
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This registry needs to be updated when a new plugin is added to the
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system: see the <emphasis>gstreamer-register</emphasis> utility and the
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documentation in the <emphasis>GStreamer Application Development
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Manual</emphasis> for more details.
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</para>
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<para>
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User extensions to GStreamer can be installed in the main plugin
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directory, and will immediately be available for use in applications.
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<emphasis>gstreamer-register</emphasis> should be run to update
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the repository: but the system will work correctly even if it hasn't
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been - it will just load the correct plugin faster.
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</para>
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<para>
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User specific plugin directories and registries will be available in future
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versions of GStreamer.
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</para>
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</chapter>
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<chapter id="cha-elements">
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<title>Elements</title>
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<para>
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Elements are at the core of GStreamer. Without elements, GStreamer is just
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a bunch of pipe fittings with nothing to connect. A large number of
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elements (filters, sources and sinks) ship with GStreamer, but extra
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elements can also be written.
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</para>
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<para>
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An element may be constructed in several different ways, but all must
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conform to the same basic rules. A simple filter may be built with the
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FilterFactory, where the only code that need be written is the actual
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filter code. A more complex filter, or a source or sink, will need to be
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written out fully for complete access to the features and performance
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possible with GStreamer.
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</para>
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<para>
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The implementation of a new element will be contained in a plugin:
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a single plugin may contain the implementation of several elements, or
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just a single one.
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</para>
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</chapter>
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<chapter id="cha-buffers">
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<title>Buffers</title>
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<para>
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</para>
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</chapter>
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<chapter id="cha-scheduling">
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<title>Scheduling</title>
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<para>
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</para>
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</chapter>
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<chapter id="cha-chainloop">
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<title>Chain vs Loop Elements</title>
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<para>
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</para>
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</chapter>
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<chapter id="cha-typing">
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<title>Typing and Properties</title>
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<para>
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</para>
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</chapter>
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<chapter id="cha-metadata">
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<title>Metadata</title>
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<para>
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</para>
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</chapter>
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