gst/gsttagsetter.h

/* GStreamer
 * Copyright (C) 2003 Benjamin Otte <in7y118@public.uni-hamburg.de>
 *
 * gsttagsetter.h: Interfaces for tagging
 *
 * 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., 51 Franklin St, Fifth Floor,
 * Boston, MA 02110-1301, USA.
 */

#ifndef __GST_TAG_SETTER_H__
#define __GST_TAG_SETTER_H__

#include <gst/gst.h>

G_BEGIN_DECLS

#define GST_TYPE_TAG_SETTER             (gst_tag_setter_get_type ())
#define GST_TAG_SETTER(obj)             (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_TAG_SETTER, GstTagSetter))
#define GST_IS_TAG_SETTER(obj)          (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_TAG_SETTER))
#define GST_TAG_SETTER_GET_INTERFACE(obj)       (G_TYPE_INSTANCE_GET_INTERFACE ((obj), GST_TYPE_TAG_SETTER, GstTagSetterInterface))

/**
 * GstTagSetter:
 *
 * Opaque #GstTagSetter data structure.
 */
typedef struct _GstTagSetter                    GstTagSetter; /* Dummy typedef */
typedef struct _GstTagSetterInterface           GstTagSetterInterface;

/**
 * GstTagSetterInterface:
 * @g_iface: parent interface type.
 *
 * #GstTagSetterInterface interface.
 */
/* use an empty interface here to allow detection of elements using user-set
   tags */
struct _GstTagSetterInterface
{
  GTypeInterface g_iface;

  /* signals */

  /* virtual table */
};

GST_EXPORT
GType           gst_tag_setter_get_type             (void);

GST_EXPORT
void            gst_tag_setter_reset_tags             (GstTagSetter * setter);

GST_EXPORT
void            gst_tag_setter_merge_tags           (GstTagSetter *     setter,
                                                     const GstTagList * list,
                                                     GstTagMergeMode    mode);
GST_EXPORT
void            gst_tag_setter_add_tags             (GstTagSetter *     setter,
                                                     GstTagMergeMode    mode,
                                                     const gchar *      tag,
                                                     ...) G_GNUC_NULL_TERMINATED;
GST_EXPORT
void            gst_tag_setter_add_tag_values       (GstTagSetter *     setter,
                                                     GstTagMergeMode    mode,
                                                     const gchar *      tag,
                                                     ...) G_GNUC_NULL_TERMINATED;
GST_EXPORT
void            gst_tag_setter_add_tag_valist       (GstTagSetter *     setter,
                                                     GstTagMergeMode    mode,
                                                     const gchar *      tag,
                                                     va_list            var_args);
GST_EXPORT
void            gst_tag_setter_add_tag_valist_values(GstTagSetter *     setter,
                                                     GstTagMergeMode    mode,
                                                     const gchar *      tag,
                                                     va_list            var_args);
GST_EXPORT
void            gst_tag_setter_add_tag_value        (GstTagSetter *     setter,
                                                     GstTagMergeMode    mode,
                                                     const gchar *      tag,
                                                     const GValue *     value);
GST_EXPORT
const GstTagList *
                gst_tag_setter_get_tag_list          (GstTagSetter *    setter);

GST_EXPORT
void            gst_tag_setter_set_tag_merge_mode    (GstTagSetter *    setter,
                                                      GstTagMergeMode   mode);
GST_EXPORT
GstTagMergeMode gst_tag_setter_get_tag_merge_mode    (GstTagSetter *    setter);

G_END_DECLS

#endif /* __GST_TAG_SETTER_H__ */