gstreamer/gst/gstprops.h

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/* GStreamer
* Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu>
* 2000 Wim Taymans <wtay@chello.be>
*
* gstprops.h: Header for properties subsystem
*
* 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_PROPS_H__
#define __GST_PROPS_H__
#include <glib.h>
#include <parser.h> // NOTE: this is xml-config's fault
// Include compatability defines: if libxml hasn't already defined these,
// we have an old version 1.x
#ifndef xmlChildrenNode
#define xmlChildrenNode childs
#define xmlRootNode root
#endif
typedef struct _GstProps GstProps;
typedef gpointer GstPropsFactoryEntry;
typedef GstPropsFactoryEntry GstPropsFactory[];
typedef GstPropsFactory *GstPropsListFactory[];
typedef enum {
GST_PROPS_END_ID_NUM = 0,
GST_PROPS_LIST_ID_NUM,
GST_PROPS_INT_ID_NUM,
GST_PROPS_INT_RANGE_ID_NUM,
GST_PROPS_FOURCC_ID_NUM,
GST_PROPS_BOOL_ID_NUM,
GST_PROPS_LAST_ID_NUM = GST_PROPS_END_ID_NUM + 16,
} GstPropsId;
#define GST_PROPS_END_ID GINT_TO_POINTER(GST_PROPS_END_ID_NUM)
#define GST_PROPS_LIST_ID GINT_TO_POINTER(GST_PROPS_LIST_ID_NUM)
#define GST_PROPS_INT_ID GINT_TO_POINTER(GST_PROPS_INT_ID_NUM)
#define GST_PROPS_INT_RANGE_ID GINT_TO_POINTER(GST_PROPS_INT_RANGE_ID_NUM)
#define GST_PROPS_FOURCC_ID GINT_TO_POINTER(GST_PROPS_FOURCC_ID_NUM)
#define GST_PROPS_BOOL_ID GINT_TO_POINTER(GST_PROPS_BOOL_ID_NUM)
#define GST_PROPS_LAST_ID GINT_TO_POINTER(GST_PROPS_LAST_ID_NUM)
#define GST_PROPS_LIST(a...) GST_PROPS_LIST_ID,##a,NULL
#define GST_PROPS_INT(a) GST_PROPS_INT_ID,(GINT_TO_POINTER(a))
#define GST_PROPS_INT_RANGE(a,b) GST_PROPS_INT_RANGE_ID,(GINT_TO_POINTER(a)),(GINT_TO_POINTER(b))
#define GST_PROPS_FOURCC(a,b,c,d) GST_PROPS_FOURCC_ID,(GINT_TO_POINTER((a)|(b)<<8|(c)<<16|(d)<<24))
#define GST_PROPS_FOURCC_INT(a) GST_PROPS_FOURCC_ID,(GINT_TO_POINTER(a))
#define GST_PROPS_BOOLEAN(a) GST_PROPS_BOOL_ID,(GINT_TO_POINTER(a))
struct _GstProps {
GList *properties; /* real properties for this property */
};
/* initialize the subsystem */
void _gst_props_initialize (void);
GstProps* gst_props_register (GstPropsFactory factory);
GstProps* gst_props_register_count (GstPropsFactory factory, guint *counter);
GstProps* gst_props_new (GstPropsFactoryEntry entry, ...);
GstProps* gst_props_merge (GstProps *props, GstProps *tomerge);
gboolean gst_props_check_compatibility (GstProps *fromprops, GstProps *toprops);
xmlNodePtr gst_props_save_thyself (GstProps *props, xmlNodePtr parent);
GstProps* gst_props_load_thyself (xmlNodePtr parent);
#endif /* __GST_PROPS_H__ */