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237 lines
8.4 KiB
C
237 lines
8.4 KiB
C
/* GStreamer
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* Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu>
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* 2000 Wim Taymans <wim.taymans@chello.be>
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*
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* gstregistry.h: Header for registry handling
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#ifndef __GST_REGISTRY_H__
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#define __GST_REGISTRY_H__
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#include <gst/gstconfig.h>
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#include <gst/gstplugin.h>
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#include <gst/gstpluginfeature.h>
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G_BEGIN_DECLS
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#define GST_TYPE_REGISTRY (gst_registry_get_type ())
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#define GST_REGISTRY(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_REGISTRY, GstRegistry))
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#define GST_IS_REGISTRY(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_REGISTRY))
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#define GST_REGISTRY_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_REGISTRY, GstRegistryClass))
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#define GST_IS_REGISTRY_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_REGISTRY))
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#define GST_REGISTRY_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GST_TYPE_REGISTRY, GstRegistryClass))
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typedef struct _GstRegistry GstRegistry;
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typedef struct _GstRegistryClass GstRegistryClass;
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typedef struct _GstRegistryPrivate GstRegistryPrivate;
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/**
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* GstRegistry:
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*
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* Opaque #GstRegistry structure.
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*/
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struct _GstRegistry {
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GstObject object;
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/*< private >*/
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GList *plugins;
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GList *features;
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GList *paths;
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/* FIXME move these elsewhere */
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int cache_file;
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/* hash to speedup _lookup_feature_locked() */
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GHashTable *feature_hash;
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/* hash to speedup _lookup */
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GHashTable *basename_hash;
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GstRegistryPrivate *priv;
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/*< private >*/
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gpointer _gst_reserved[GST_PADDING-3];
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};
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struct _GstRegistryClass {
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GstObjectClass parent_class;
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/* signals */
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void (*plugin_added) (GstRegistry *registry, GstPlugin *plugin);
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void (*feature_added) (GstRegistry *registry, GstPluginFeature *feature);
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/*< private >*/
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gpointer _gst_reserved[GST_PADDING];
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};
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/* normal GObject stuff */
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GType gst_registry_get_type (void);
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GstRegistry * gst_registry_get_default (void);
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gboolean gst_registry_scan_path (GstRegistry *registry, const gchar *path);
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void gst_registry_add_path (GstRegistry * registry, const gchar * path);
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GList* gst_registry_get_path_list (GstRegistry *registry);
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gboolean gst_registry_add_plugin (GstRegistry *registry, GstPlugin *plugin);
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void gst_registry_remove_plugin (GstRegistry *registry, GstPlugin *plugin);
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gboolean gst_registry_add_feature (GstRegistry * registry, GstPluginFeature * feature);
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void gst_registry_remove_feature (GstRegistry * registry, GstPluginFeature * feature);
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GList* gst_registry_get_plugin_list (GstRegistry *registry);
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GList* gst_registry_plugin_filter (GstRegistry *registry,
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GstPluginFilter filter,
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gboolean first,
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gpointer user_data);
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GList* gst_registry_feature_filter (GstRegistry *registry,
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GstPluginFeatureFilter filter,
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gboolean first,
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gpointer user_data);
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GList * gst_registry_get_feature_list (GstRegistry *registry,
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GType type);
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GList * gst_registry_get_feature_list_by_plugin (GstRegistry *registry, const gchar *name);
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guint32 gst_registry_get_feature_list_cookie (GstRegistry *registry);
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GstPlugin* gst_registry_find_plugin (GstRegistry *registry, const gchar *name);
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GstPluginFeature* gst_registry_find_feature (GstRegistry *registry, const gchar *name, GType type);
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GstPlugin * gst_registry_lookup (GstRegistry *registry, const char *filename);
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GstPluginFeature * gst_registry_lookup_feature (GstRegistry *registry, const char *name);
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/* These are only here because at some point they were in a public header
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* (even though they should have been private) and we can't really remove
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* them now (FIXME: 0.11). They don't do anything other than return FALSE. */
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#ifndef GST_DISABLE_DEPRECATED
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gboolean gst_registry_xml_read_cache (GstRegistry * registry, const char *location);
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gboolean gst_registry_xml_write_cache (GstRegistry * registry, const char *location);
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#endif
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/* convinience defines for the default registry */
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/**
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* gst_default_registry_add_plugin:
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* @plugin: (transfer full): the plugin to add
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*
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* Add the plugin to the default registry.
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* The plugin-added signal will be emitted.
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*
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* Returns: TRUE on success.
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*/
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#define gst_default_registry_add_plugin(plugin) \
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gst_registry_add_plugin (gst_registry_get_default(), plugin)
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/**
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* gst_default_registry_add_path:
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* @path: the path to add to the registry
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*
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* Add the given path to the default registry. The syntax of the
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* path is specific to the registry. If the path has already been
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* added, do nothing.
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*/
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#define gst_default_registry_add_path(path) \
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gst_registry_add_path (gst_registry_get_default(), path)
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/**
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* gst_default_registry_get_path_list:
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*
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* Get the list of paths for the default registry.
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*
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* Returns: (transfer container) (element-type char*): a #GList of paths as
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* strings. g_list_free() after use.
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*/
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#define gst_default_registry_get_path_list() \
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gst_registry_get_path_list (gst_registry_get_default())
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/**
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* gst_default_registry_get_plugin_list:
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*
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* Get a copy of all plugins registered in the default registry.
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*
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* Returns: (transfer full) (element-type Gst.Plugin): a copy of the list.
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* Free after use.
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*/
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#define gst_default_registry_get_plugin_list() \
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gst_registry_get_plugin_list (gst_registry_get_default())
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/**
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* gst_default_registry_find_feature:
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* @name: the pluginfeature name to find
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* @type: the pluginfeature type to find
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*
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* Find the pluginfeature with the given name and type in the default registry.
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*
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* Returns: (transfer full): the pluginfeature with the given name and type or
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* NULL if the plugin was not found.
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*/
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#define gst_default_registry_find_feature(name,type) \
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gst_registry_find_feature (gst_registry_get_default(),name,type)
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/**
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* gst_default_registry_find_plugin:
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* @name: the plugin name to find
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*
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* Find the plugin with the given name in the default registry.
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* The plugin will be reffed; caller is responsible for unreffing.
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*
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* Returns: (transfer full): The plugin with the given name or NULL if the
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* plugin was not found.
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*/
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#define gst_default_registry_find_plugin(name) \
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gst_registry_find_plugin (gst_registry_get_default(),name)
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/**
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* gst_default_registry_feature_filter:
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* @filter: the filter to use
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* @first: only return first match
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* @user_data: user data passed to the filter function
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*
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* Runs a filter against all features of the plugins in the default registry
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* and returns a GList with the results.
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* If the first flag is set, only the first match is
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* returned (as a list with a single object).
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*
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* Returns: (transfer full) (element-type Gst.PluginFeature): a #GList of
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* plugin features, gst_plugin_feature_list_free after use.
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*/
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#define gst_default_registry_feature_filter(filter,first,user_data) \
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gst_registry_feature_filter (gst_registry_get_default(),filter,first,user_data)
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/**
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* gst_default_registry_get_feature_list_cookie:
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*
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* Returns the default registrys feature list cookie. This changes
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* every time a feature is added or removed from the registry.
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*
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* Returns: the feature list cookie.
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*
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* Since: 0.10.26
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*/
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#define gst_default_registry_get_feature_list_cookie() \
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gst_registry_get_feature_list_cookie (gst_registry_get_default())
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gboolean gst_default_registry_check_feature_version (const gchar *feature_name,
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guint min_major,
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guint min_minor,
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guint min_micro);
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G_END_DECLS
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#endif /* __GST_REGISTRY_H__ */
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