gstreamer/gst/gstautoplug.h

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/* GStreamer
* Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu>
* 2000 Wim Taymans <wtay@chello.be>
*
* gstautoplug.h: Header for autoplugging functionality
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifndef __GST_AUTOPLUG_H__
#define __GST_AUTOPLUG_H__
#ifndef GST_DISABLE_AUTOPLUG
#include <gst/gstelement.h>
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
#define GST_TYPE_AUTOPLUG \
(gst_autoplug_get_type())
#define GST_AUTOPLUG(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_AUTOPLUG,GstAutoplug))
#define GST_AUTOPLUG_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_AUTOPLUG,GstAutoplugClass))
#define GST_IS_AUTOPLUG(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_AUTOPLUG))
#define GST_IS_AUTOPLUG_CLASS(obj) \
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_AUTOPLUG))
typedef struct _GstAutoplug GstAutoplug;
typedef struct _GstAutoplugClass GstAutoplugClass;
typedef enum {
GST_AUTOPLUG_TO_CAPS = GST_OBJECT_FLAG_LAST,
GST_AUTOPLUG_TO_RENDERER,
GST_AUTOPLUG_FLAG_LAST = GST_OBJECT_FLAG_LAST + 8,
} GstAutoplugFlags;
struct _GstAutoplug {
GstObject object;
};
struct _GstAutoplugClass {
GstObjectClass parent_class;
/* signal callbacks */
void (*new_object) (GstAutoplug *autoplug, GstObject *object);
/* perform the autoplugging */
GstElement* (*autoplug_to_caps) (GstAutoplug *autoplug, GstCaps *srccaps, GstCaps *sinkcaps, va_list args);
GstElement* (*autoplug_to_renderers) (GstAutoplug *autoplug, GstCaps *srccaps, GstElement *target, va_list args);
};
typedef struct _GstAutoplugFactory GstAutoplugFactory;
struct _GstAutoplugFactory {
gchar *name; /* name of autoplugger */
gchar *longdesc; /* long description of the autoplugger (well, don't overdo it..) */
GType type; /* unique GType of the autoplugger */
};
GType gst_autoplug_get_type (void);
void gst_autoplug_signal_new_object (GstAutoplug *autoplug, GstObject *object);
GstElement* gst_autoplug_to_caps (GstAutoplug *autoplug, GstCaps *srccaps, GstCaps *sinkcaps, ...);
GstElement* gst_autoplug_to_renderers (GstAutoplug *autoplug, GstCaps *srccaps,
GstElement *target, ...);
/*
* creating autopluggers
*
*/
GstAutoplugFactory* gst_autoplugfactory_new (const gchar *name, const gchar *longdesc, GType type);
void gst_autoplugfactory_destroy (GstAutoplugFactory *factory);
GstAutoplugFactory* gst_autoplugfactory_find (const gchar *name);
GList* gst_autoplugfactory_get_list (void);
GstAutoplug* gst_autoplugfactory_create (GstAutoplugFactory *factory);
GstAutoplug* gst_autoplugfactory_make (const gchar *name);
xmlNodePtr gst_autoplugfactory_save_thyself (GstAutoplugFactory *factory, xmlNodePtr parent);
GstAutoplugFactory* gst_autoplugfactory_load_thyself (xmlNodePtr parent);
#ifdef __cplusplus
}
#endif /* __cplusplus */
#else // GST_DISABLE_AUTOPLUG
#pragma GCC poison gst_autoplug_get_type
#pragma GCC poison gst_autoplug_signal_new_object
#pragma GCC poison gst_autoplug_to_caps
#pragma GCC poison gst_autoplug_to_renderers
#pragma GCC poison gst_autoplugfactory_new
#pragma GCC poison gst_autoplugfactory_destroy
#pragma GCC poison gst_autoplugfactory_find
#pragma GCC poison gst_autoplugfactory_get_list
#pragma GCC poison gst_autoplugfactory_create
#pragma GCC poison gst_autoplugfactory_make
#pragma GCC poison gst_autoplugfactory_save_thyself
#pragma GCC poison gst_autoplugfactory_load_thyself
#endif // GST_DISABLE_AUTOPLUG
#endif /* __GST_AUTOPLUG_H__ */