GstPlugin Container for features loaded from a shared object module GStreamer is extensible, so GstElements can be loaded at runtime. A plugin system can provide one or more of the basic GStreamer #GstPluginFeature subclasses. A plugin should export a symbol plugin_desc that is a struct of type #GstPluginDesc. the plugin loader will check the version of the core library the plugin was linked against and will create a new #GstPlugin. It will then call the #GstPluginInitFunc function that was provided in the plugin_desc. Once you have a handle to a #GstPlugin (e.g. from the #GstRegistryPool), you can add any object that subclasses #GstPluginFeature. Use gst_plugin_find_feature() and gst_plugin_get_feature_list() to find features in a plugin. Usually plugins are always automaticlly loaded so you don't need to call gst_plugin_load() explicitly to bring it into memory. There are options to statically link plugins to an app or even use GStreamer without a plugin repository in which case gst_plugin_load() can be needed to bring the plugin into memory. #GstPluginFeature, #GstType, #GstAutoplug, #GstElementFactory Get the error quark @Returns: The error quark used in GError messages The error quark The plugin loading errors @GST_PLUGIN_ERROR_MODULE: The plugin could not be loaded @GST_PLUGIN_ERROR_DEPENDENCIES: The plugin has unresolved dependencies @GST_PLUGIN_ERROR_NAME_MISMATCH: The plugin has already be loaded from a different file The plugin object @desc: @filename: @features: @numfeatures: @manager: @module: @_gst_reserved: A plugins should export a variable of this type called plugin_desc. This plugin loaded will use this variable to initialize the plugin. @major_version: the major version number of core that plugin was compiled for @minor_version: the minor version number of core that plugin was compiled for @name: a unique name of the plugin @description: @plugin_init: The init function of this plugin. @plugin_exit: @version: version of the plugin @license: effective license of plugin @package: package plugin belongs to @origin: URL to provider of plugin @_gst_reserved: A plugin should provide a pointer to a function of this type in the plugin_desc struct. It will be called by the loader at statup. @plugin: The plugin object that can be used to register stuff for this plugin. @Returns: A boolean indicating success or failure. @module: The GModule it was loaded from Exiting function when plugin is unloaded. @plugin: The plugin object that can be used to unregister stuff for this plugin. This macro needs to be used to define the entry point and meta data of a plugin. One would use this macro to export a plugin, so that it can be used by other applications @major: major version number of the gstreamer-core that plugin was compiled for @minor: minor version number of the gstreamer-core that plugin was compiled for @name: short, but unique name of the plugin @description: information about the purpose of the plugin @init: function pointer to the plugin_init method with the signature of static gboolean plugin_init (GstPlugin * plugin). @version: full version string (e.g. VERSION from config.h) @license: under which licence the package has been released, e.g. GPL, LGPL. @package: the package-name (e.g. PACKAGE_NAME from config.h) @origin: a description from where the package comes from (e.g. the homepage URL) This macro needs to be used to define the entry point and meta data of a local plugin. One would use this macro to define a local plugin that can only be used by the own application. @major: major version number of the gstreamer-core that plugin was compiled for @minor: minor version number of the gstreamer-core that plugin was compiled for @name: short, but unique name of the plugin @description: information about the purpose of the plugin @init: function pointer to the plugin_init method with the signature of static gboolean plugin_init (GstPlugin * plugin). @version: full version string (e.g. VERSION from config.h) @license: under which licence the package has been released, e.g. GPL, LGPL. @package: the package-name (e.g. PACKAGE_NAME from config.h) @origin: a description from where the package comes from (e.g. the homepage URL) A function that can be used with e.g. gst_registry_plugin_filter() to get a list of plugins that match certain criteria. @plugin: the plugin to check @user_data: the user_data that has been passed on e.g. gst_registry_plugin_filter() @Returns: TRUE for a positive match, FALSE otherwise @plugin: @Returns: @plugin: @Returns: @plugin: @Returns: @plugin: @Returns: @plugin: @Returns: @plugin: @Returns: @plugin: @Returns: @plugin: @Returns: @plugin: @Returns: @plugin: @filter: @first: @user_data: @Returns: @list: @filter: @first: @user_data: @Returns: @plugin: @name: @Returns: @plugin: @Returns: @plugin: @name: @type: @Returns: @filename: @error: @Returns: @filename: @error: @Returns: @plugin: @Returns: @plugin: @feature: @name: @Returns: