gstreamer/gst/gststructure.h
Thomas Vander Stichele a967370df5 gst-indent run on core
Original commit message from CVS:
gst-indent run on core
2004-03-13 15:27:01 +00:00

108 lines
4.4 KiB
C

/* GStreamer
* Copyright (C) 2003 David A. Schleef <ds@schleef.org>
*
* 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_STRUCTURE_H__
#define __GST_STRUCTURE_H__
#include <gst/gstconfig.h>
#include <glib-object.h>
G_BEGIN_DECLS
#define GST_TYPE_STRUCTURE (gst_structure_get_type ())
#define GST_STRUCTURE(object) (G_TYPE_CHECK_INSTANCE_CAST ((object), GST_TYPE_STRUCTURE, GstStructure))
#define GST_IS_STRUCTURE(object) (G_TYPE_CHECK_INSTANCE_TYPE ((object), GST_TYPE_STRUCTURE))
typedef struct _GstStructure GstStructure;
typedef gboolean (*GstStructureForeachFunc) (GQuark field_id,
GValue * value, gpointer user_data);
struct _GstStructure
{
GType type;
GQuark name;
GArray *fields;
};
GType
gst_structure_get_type (void)
G_GNUC_CONST;
GstStructure *gst_structure_empty_new (const gchar * name);
GstStructure *gst_structure_id_empty_new (GQuark quark);
GstStructure *gst_structure_new (const gchar * name,
const gchar * firstfield, ...);
GstStructure *gst_structure_new_valist (const gchar * name,
const gchar * firstfield, va_list varargs);
GstStructure *gst_structure_copy (const GstStructure * structure);
void gst_structure_free (GstStructure * structure);
G_CONST_RETURN gchar *gst_structure_get_name (const GstStructure *
structure);
void gst_structure_set_name (GstStructure * structure, const gchar * name);
void gst_structure_id_set_value (GstStructure * structure,
GQuark field, const GValue * value);
void gst_structure_set_value (GstStructure * structure,
const gchar * fieldname, const GValue * value);
void gst_structure_set (GstStructure * structure,
const gchar * fieldname, ...);
void gst_structure_set_valist (GstStructure * structure,
const gchar * fieldname, va_list varargs);
G_CONST_RETURN GValue *gst_structure_id_get_value (const GstStructure *
structure, GQuark field);
G_CONST_RETURN GValue *gst_structure_get_value (const GstStructure *
structure, const gchar * fieldname);
void gst_structure_remove_field (GstStructure * structure,
const gchar * fieldname);
void gst_structure_remove_fields (GstStructure * structure,
const gchar * fieldname, ...);
void gst_structure_remove_fields_valist (GstStructure * structure,
const gchar * fieldname, va_list varargs);
void gst_structure_remove_all_fields (GstStructure * structure);
GType gst_structure_get_field_type (const GstStructure * structure,
const gchar * fieldname);
gboolean gst_structure_foreach (GstStructure * structure,
GstStructureForeachFunc func, gpointer user_data);
gint gst_structure_n_fields (const GstStructure * structure);
gboolean gst_structure_has_field (const GstStructure * structure,
const gchar * fieldname);
gboolean gst_structure_has_field_typed (const GstStructure * structure,
const gchar * fieldname, GType type);
/* utility functions */
gboolean gst_structure_get_boolean (const GstStructure * structure,
const gchar * fieldname, gboolean * value);
gboolean gst_structure_get_int (const GstStructure * structure,
const gchar * fieldname, gint * value);
gboolean gst_structure_get_fourcc (const GstStructure * structure,
const gchar * fieldname, guint32 * value);
gboolean gst_structure_get_double (const GstStructure * structure,
const gchar * fieldname, gdouble * value);
G_CONST_RETURN gchar *gst_structure_get_string (const GstStructure *
structure, const gchar * fieldname);
gchar *gst_structure_to_string (const GstStructure * structure);
GstStructure *gst_structure_from_string (const gchar * string,
gchar ** end);
G_END_DECLS
#endif