mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-11-18 15:51:11 +00:00
92d5d5bc57
g_clear_pointer is not thread-safe and never was. GLib similarly removed the volatile from g_clear_object in 2aacef39b1. Fixes https://gitlab.freedesktop.org/gstreamer/gstreamer/issues/327
381 lines
20 KiB
C
381 lines
20 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., 51 Franklin St, Fifth Floor,
|
|
* Boston, MA 02110-1301, USA.
|
|
*/
|
|
|
|
#ifndef __GST_STRUCTURE_H__
|
|
#define __GST_STRUCTURE_H__
|
|
|
|
#include <gst/gstconfig.h>
|
|
#include <glib-object.h>
|
|
#include <gst/gstclock.h>
|
|
#include <gst/gstdatetime.h>
|
|
#include <gst/glib-compat.h>
|
|
|
|
G_BEGIN_DECLS
|
|
|
|
GST_API GType _gst_structure_type;
|
|
|
|
typedef struct _GstStructure GstStructure;
|
|
|
|
#define GST_TYPE_STRUCTURE (_gst_structure_type)
|
|
#define GST_IS_STRUCTURE(object) ((object) && (GST_STRUCTURE(object)->type == GST_TYPE_STRUCTURE))
|
|
#define GST_STRUCTURE_CAST(object) ((GstStructure *)(object))
|
|
#define GST_STRUCTURE(object) (GST_STRUCTURE_CAST(object))
|
|
|
|
|
|
/**
|
|
* GstStructureForeachFunc:
|
|
* @field_id: the #GQuark of the field name
|
|
* @value: the #GValue of the field
|
|
* @user_data: user data
|
|
*
|
|
* A function that will be called in gst_structure_foreach(). The function may
|
|
* not modify @value.
|
|
*
|
|
* Returns: %TRUE if the foreach operation should continue, %FALSE if
|
|
* the foreach operation should stop with %FALSE.
|
|
*/
|
|
typedef gboolean (*GstStructureForeachFunc) (GQuark field_id,
|
|
const GValue * value,
|
|
gpointer user_data);
|
|
|
|
/**
|
|
* GstStructureMapFunc:
|
|
* @field_id: the #GQuark of the field name
|
|
* @value: the #GValue of the field
|
|
* @user_data: user data
|
|
*
|
|
* A function that will be called in gst_structure_map_in_place(). The function
|
|
* may modify @value.
|
|
*
|
|
* Returns: %TRUE if the map operation should continue, %FALSE if
|
|
* the map operation should stop with %FALSE.
|
|
*/
|
|
typedef gboolean (*GstStructureMapFunc) (GQuark field_id,
|
|
GValue * value,
|
|
gpointer user_data);
|
|
|
|
/**
|
|
* GstStructureFilterMapFunc:
|
|
* @field_id: the #GQuark of the field name
|
|
* @value: the #GValue of the field
|
|
* @user_data: user data
|
|
*
|
|
* A function that will be called in gst_structure_filter_and_map_in_place().
|
|
* The function may modify @value, and the value will be removed from
|
|
* the structure if %FALSE is returned.
|
|
*
|
|
* Returns: %TRUE if the field should be preserved, %FALSE if it
|
|
* should be removed.
|
|
*/
|
|
typedef gboolean (*GstStructureFilterMapFunc) (GQuark field_id,
|
|
GValue * value,
|
|
gpointer user_data);
|
|
|
|
/**
|
|
* GstStructure:
|
|
* @type: the GType of a structure
|
|
*
|
|
* The GstStructure object. Most fields are private.
|
|
*/
|
|
struct _GstStructure {
|
|
GType type;
|
|
|
|
/*< private >*/
|
|
GQuark name;
|
|
};
|
|
|
|
GST_API
|
|
GType gst_structure_get_type (void);
|
|
|
|
GST_API
|
|
GstStructure * gst_structure_new_empty (const gchar * name) G_GNUC_MALLOC;
|
|
|
|
GST_API
|
|
GstStructure * gst_structure_new_id_empty (GQuark quark) G_GNUC_MALLOC;
|
|
|
|
GST_API
|
|
GstStructure * gst_structure_new (const gchar * name,
|
|
const gchar * firstfield,
|
|
...) G_GNUC_NULL_TERMINATED G_GNUC_MALLOC;
|
|
GST_API
|
|
GstStructure * gst_structure_new_valist (const gchar * name,
|
|
const gchar * firstfield,
|
|
va_list varargs) G_GNUC_MALLOC;
|
|
GST_API
|
|
GstStructure * gst_structure_new_id (GQuark name_quark,
|
|
GQuark field_quark,
|
|
...) G_GNUC_MALLOC;
|
|
GST_API
|
|
GstStructure * gst_structure_new_from_string (const gchar * string);
|
|
|
|
GST_API
|
|
GstStructure * gst_structure_copy (const GstStructure * structure) G_GNUC_MALLOC;
|
|
|
|
GST_API
|
|
gboolean gst_structure_set_parent_refcount (GstStructure * structure,
|
|
gint * refcount);
|
|
GST_API
|
|
void gst_structure_free (GstStructure * structure);
|
|
|
|
GST_API
|
|
void gst_clear_structure (GstStructure **structure_ptr);
|
|
#define gst_clear_structure(structure_ptr) g_clear_pointer ((structure_ptr), gst_structure_free)
|
|
|
|
GST_API
|
|
const gchar * gst_structure_get_name (const GstStructure * structure);
|
|
|
|
GST_API
|
|
GQuark gst_structure_get_name_id (const GstStructure * structure);
|
|
|
|
GST_API
|
|
gboolean gst_structure_has_name (const GstStructure * structure,
|
|
const gchar * name);
|
|
GST_API
|
|
void gst_structure_set_name (GstStructure * structure,
|
|
const gchar * name);
|
|
GST_API
|
|
void gst_structure_id_set_value (GstStructure * structure,
|
|
GQuark field,
|
|
const GValue * value);
|
|
GST_API
|
|
void gst_structure_set_value (GstStructure * structure,
|
|
const gchar * fieldname,
|
|
const GValue * value);
|
|
GST_API
|
|
void gst_structure_set_array (GstStructure * structure,
|
|
const gchar * fieldname,
|
|
const GValueArray * array);
|
|
GST_API
|
|
void gst_structure_set_list (GstStructure * structure,
|
|
const gchar * fieldname,
|
|
const GValueArray * array);
|
|
GST_API
|
|
void gst_structure_id_take_value (GstStructure * structure,
|
|
GQuark field,
|
|
GValue * value);
|
|
GST_API
|
|
void gst_structure_take_value (GstStructure * structure,
|
|
const gchar * fieldname,
|
|
GValue * value);
|
|
GST_API
|
|
void gst_structure_set (GstStructure * structure,
|
|
const gchar * fieldname,
|
|
...) G_GNUC_NULL_TERMINATED;
|
|
GST_API
|
|
void gst_structure_set_valist (GstStructure * structure,
|
|
const gchar * fieldname,
|
|
va_list varargs);
|
|
GST_API
|
|
void gst_structure_id_set (GstStructure * structure,
|
|
GQuark fieldname,
|
|
...) G_GNUC_NULL_TERMINATED;
|
|
GST_API
|
|
void gst_structure_id_set_valist (GstStructure * structure,
|
|
GQuark fieldname,
|
|
va_list varargs);
|
|
GST_API
|
|
gboolean gst_structure_get_valist (const GstStructure * structure,
|
|
const char * first_fieldname,
|
|
va_list args);
|
|
GST_API
|
|
gboolean gst_structure_get (const GstStructure * structure,
|
|
const char * first_fieldname,
|
|
...) G_GNUC_NULL_TERMINATED;
|
|
GST_API
|
|
gboolean gst_structure_id_get_valist (const GstStructure * structure,
|
|
GQuark first_field_id,
|
|
va_list args);
|
|
GST_API
|
|
gboolean gst_structure_id_get (const GstStructure * structure,
|
|
GQuark first_field_id,
|
|
...) G_GNUC_NULL_TERMINATED;
|
|
GST_API
|
|
const GValue * gst_structure_id_get_value (const GstStructure * structure,
|
|
GQuark field);
|
|
GST_API
|
|
const GValue * gst_structure_get_value (const GstStructure * structure,
|
|
const gchar * fieldname);
|
|
GST_API
|
|
void gst_structure_remove_field (GstStructure * structure,
|
|
const gchar * fieldname);
|
|
GST_API
|
|
void gst_structure_remove_fields (GstStructure * structure,
|
|
const gchar * fieldname,
|
|
...) G_GNUC_NULL_TERMINATED;
|
|
GST_API
|
|
void gst_structure_remove_fields_valist (GstStructure * structure,
|
|
const gchar * fieldname,
|
|
va_list varargs);
|
|
GST_API
|
|
void gst_structure_remove_all_fields (GstStructure * structure);
|
|
|
|
GST_API
|
|
GType gst_structure_get_field_type (const GstStructure * structure,
|
|
const gchar * fieldname);
|
|
GST_API
|
|
gboolean gst_structure_foreach (const GstStructure * structure,
|
|
GstStructureForeachFunc func,
|
|
gpointer user_data);
|
|
GST_API
|
|
gboolean gst_structure_map_in_place (GstStructure * structure,
|
|
GstStructureMapFunc func,
|
|
gpointer user_data);
|
|
GST_API
|
|
void gst_structure_filter_and_map_in_place (GstStructure * structure,
|
|
GstStructureFilterMapFunc func,
|
|
gpointer user_data);
|
|
GST_API
|
|
gint gst_structure_n_fields (const GstStructure * structure);
|
|
|
|
GST_API
|
|
const gchar * gst_structure_nth_field_name (const GstStructure * structure,
|
|
guint index);
|
|
GST_API
|
|
gboolean gst_structure_id_has_field (const GstStructure * structure,
|
|
GQuark field);
|
|
GST_API
|
|
gboolean gst_structure_id_has_field_typed (const GstStructure * structure,
|
|
GQuark field,
|
|
GType type);
|
|
GST_API
|
|
gboolean gst_structure_has_field (const GstStructure * structure,
|
|
const gchar * fieldname);
|
|
GST_API
|
|
gboolean gst_structure_has_field_typed (const GstStructure * structure,
|
|
const gchar * fieldname,
|
|
GType type);
|
|
|
|
/* utility functions */
|
|
|
|
GST_API
|
|
gboolean gst_structure_get_boolean (const GstStructure * structure,
|
|
const gchar * fieldname,
|
|
gboolean * value);
|
|
GST_API
|
|
gboolean gst_structure_get_int (const GstStructure * structure,
|
|
const gchar * fieldname,
|
|
gint * value);
|
|
GST_API
|
|
gboolean gst_structure_get_uint (const GstStructure * structure,
|
|
const gchar * fieldname,
|
|
guint * value);
|
|
GST_API
|
|
gboolean gst_structure_get_int64 (const GstStructure * structure,
|
|
const gchar * fieldname,
|
|
gint64 * value);
|
|
GST_API
|
|
gboolean gst_structure_get_uint64 (const GstStructure * structure,
|
|
const gchar * fieldname,
|
|
guint64 * value);
|
|
GST_API
|
|
gboolean gst_structure_get_double (const GstStructure * structure,
|
|
const gchar * fieldname,
|
|
gdouble * value);
|
|
GST_API
|
|
gboolean gst_structure_get_date (const GstStructure * structure,
|
|
const gchar * fieldname,
|
|
GDate ** value);
|
|
GST_API
|
|
gboolean gst_structure_get_date_time (const GstStructure * structure,
|
|
const gchar * fieldname,
|
|
GstDateTime ** value);
|
|
GST_API
|
|
gboolean gst_structure_get_clock_time (const GstStructure * structure,
|
|
const gchar * fieldname,
|
|
GstClockTime * value);
|
|
GST_API
|
|
const gchar * gst_structure_get_string (const GstStructure * structure,
|
|
const gchar * fieldname);
|
|
GST_API
|
|
gboolean gst_structure_get_enum (const GstStructure * structure,
|
|
const gchar * fieldname,
|
|
GType enumtype,
|
|
gint * value);
|
|
GST_API
|
|
gboolean gst_structure_get_fraction (const GstStructure * structure,
|
|
const gchar * fieldname,
|
|
gint * value_numerator,
|
|
gint * value_denominator);
|
|
GST_API
|
|
gboolean gst_structure_get_flagset (const GstStructure * structure,
|
|
const gchar * fieldname,
|
|
guint * value_flags,
|
|
guint * value_mask);
|
|
GST_API
|
|
gboolean gst_structure_get_array (GstStructure * structure,
|
|
const gchar * fieldname,
|
|
GValueArray ** array);
|
|
GST_API
|
|
gboolean gst_structure_get_list (GstStructure * structure,
|
|
const gchar * fieldname,
|
|
GValueArray ** array);
|
|
GST_API
|
|
gchar * gst_structure_to_string (const GstStructure * structure) G_GNUC_MALLOC;
|
|
|
|
GST_API
|
|
GstStructure * gst_structure_from_string (const gchar * string,
|
|
gchar ** end) G_GNUC_MALLOC;
|
|
GST_API
|
|
gboolean gst_structure_fixate_field_nearest_int (GstStructure * structure,
|
|
const char * field_name,
|
|
int target);
|
|
GST_API
|
|
gboolean gst_structure_fixate_field_nearest_double (GstStructure * structure,
|
|
const char * field_name,
|
|
double target);
|
|
GST_API
|
|
gboolean gst_structure_fixate_field_boolean (GstStructure * structure,
|
|
const char * field_name,
|
|
gboolean target);
|
|
GST_API
|
|
gboolean gst_structure_fixate_field_string (GstStructure * structure,
|
|
const char * field_name,
|
|
const gchar * target);
|
|
GST_API
|
|
gboolean gst_structure_fixate_field_nearest_fraction (GstStructure * structure,
|
|
const char * field_name,
|
|
const gint target_numerator,
|
|
const gint target_denominator);
|
|
GST_API
|
|
gboolean gst_structure_fixate_field (GstStructure * structure,
|
|
const char * field_name);
|
|
GST_API
|
|
void gst_structure_fixate (GstStructure * structure);
|
|
|
|
GST_API
|
|
gboolean gst_structure_is_equal (const GstStructure * structure1,
|
|
const GstStructure * structure2);
|
|
GST_API
|
|
gboolean gst_structure_is_subset (const GstStructure * subset,
|
|
const GstStructure * superset);
|
|
GST_API
|
|
gboolean gst_structure_can_intersect (const GstStructure * struct1,
|
|
const GstStructure * struct2);
|
|
GST_API
|
|
GstStructure * gst_structure_intersect (const GstStructure * struct1,
|
|
const GstStructure * struct2) G_GNUC_MALLOC;
|
|
|
|
#ifdef G_DEFINE_AUTOPTR_CLEANUP_FUNC
|
|
G_DEFINE_AUTOPTR_CLEANUP_FUNC(GstStructure, gst_structure_free)
|
|
#endif
|
|
|
|
G_END_DECLS
|
|
|
|
#endif
|
|
|