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/*
* fs-plugin.h - Header for farstream plugin infrastructure
*
* Farstream Voice+Video library
* Copyright (c) 2005 INdT.
* @author: Andre Moreira Magalhaes <andre.magalhaes@indt.org.br>
* Copyright (c) 2005-2007 Collabora Ltd.
* Copyright (c) 2005-2007 Nokia Corp.
* @author: Rob Taylor <rob.taylor@collabora.co.uk>
* @author: Olivier Crete <olivier.crete@collabora.co.uk>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef __FS_PLUGIN_H__
#define __FS_PLUGIN_H__
#include <glib.h>
#include <glib-object.h>
#include <gmodule.h>
#include <gst/gst.h>
#include <stdarg.h>
G_BEGIN_DECLS
/* TYPE MACROS */
#define FS_TYPE_PLUGIN \
(fs_plugin_get_type ())
#define FS_PLUGIN(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj), FS_TYPE_PLUGIN, FsPlugin))
#define FS_PLUGIN_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass), FS_TYPE_PLUGIN, FsPluginClass))
#define FS_IS_PLUGIN(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj), FS_TYPE_PLUGIN))
#define FS_IS_PLUGIN_CLASS(klass) \
(G_TYPE_CHECK_CLASS_TYPE((klass), FS_TYPE_PLUGIN))
#define FS_PLUGIN_GET_CLASS(obj) \
(G_TYPE_INSTANCE_GET_CLASS ((obj), FS_TYPE_PLUGIN, FsPluginClass))
/**
* FsPlugin:
* @parent: the parent object
*
* This structure represents a plugin, it is opaque.
*/
typedef struct _FsPlugin FsPlugin;
typedef struct _FsPluginClass FsPluginClass;
typedef struct _FsPluginPrivate FsPluginPrivate;
struct _FsPlugin
{
GTypeModule parent;
/*< private >*/
GType type;
gchar *name; /* name of the plugin */
/*< private >*/
FsPluginPrivate *priv;
gpointer unused[8];
};
struct _FsPluginClass
{
GTypeModuleClass parent_class;
/*< private >*/
gpointer unused[8];
};
GType fs_plugin_get_type (void);
GObject *fs_plugin_create_valist (const gchar *name,
const gchar *type_suffix,
GError **error,
const gchar *first_property_name,
va_list var_args);
GObject *fs_plugin_create (const gchar *name,
const gchar *type_suffix,
GError **error,
const gchar *first_property_name, ...);
gchar **fs_plugin_list_available (const gchar *type_suffix);
void fs_plugin_register_static (const gchar *name, const gchar *type_suffix,
GType type);
/**
* FS_INIT_PLUGIN:
* @type_register_func: A function that register a #GType and returns it
*
* This macro is used to declare Farstream plugins and must be used once
* in any farstream plugin.
*/
#define _FS_REGISTER_TYPE(plugin,name,type) \
fs_ ## name ## _ ## type ## _register_type (plugin)
#ifdef GST_PLUGIN_BUILD_STATIC
#define FS_INIT_PLUGIN(name,type) \
G_MODULE_EXPORT void \
fs_plugin_ ## name ## _ ## type ## _register (void) \
{ \
fs_plugin_register_static (#name, #type, \
_FS_REGISTER_TYPE (NULL, name, type)); \
}
#else /* !GST_PLUGIN_BUILD_STATIC */
#define FS_INIT_PLUGIN(name,_type) \
G_MODULE_EXPORT void \
fs_init_plugin (FsPlugin *plugin) \
{ \
plugin->type = _FS_REGISTER_TYPE (plugin, name, _type); \
}
#endif /* GST_PLUGIN_BUILD_STATIC */
/**
* FS_PLUGIN_STATIC_DECLARE:
* @name: unique name of the plugin
*
* This macro can be used to initialize statically linked plugins. It is
* necessary to call this macro before the plugin can be used. It has to be
* used in combination with FS_PLUGIN_STATIC_REGISTER and must be placed
* outside any block to declare the plugin initialization function.
*/
#define FS_PLUGIN_STATIC_DECLARE(name) \
extern void fs_plugin_ ## name ## _register(void);
/**
* FS_PLUGIN_STATIC_REGISTER:
* @name: unique name of the plugin
*
* This macro can be used to initialize statically linked plugins. It is
* necessary to call this macro before the plugin can be used. It has to
* be used in combination with FS_PLUGIN_STATIC_DECLARE and calls the plugin
* initialization function.
*/
#define FS_PLUGIN_STATIC_REGISTER(name) fs_plugin_ ## name ## _register ()
G_END_DECLS
#endif
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