GstStructure: GStreamer 1.0 Core Reference Manual

## GstStructure GstStructure |

## Functions

gboolean | (*GstStructureForeachFunc) ()
gboolean | (*GstStructureMapFunc) ()
gboolean | (*GstStructureFilterMapFunc) ()
GstStructure * | gst_structure_new_empty ()
GstStructure * | gst_structure_new_id_empty ()
GstStructure * | gst_structure_new ()
GstStructure * | gst_structure_new_valist ()
GstStructure * | gst_structure_new_id ()
GstStructure * | gst_structure_new_from_string ()
GstStructure * | gst_structure_copy ()
void | gst_structure_free ()
const gchar * | gst_structure_get_name ()
gboolean | gst_structure_has_name ()
void | gst_structure_set_name ()
GQuark | gst_structure_get_name_id ()
gboolean | gst_structure_id_get ()
gboolean | gst_structure_id_get_valist ()
const GValue * | gst_structure_id_get_value ()
void | gst_structure_id_set_value ()
void | gst_structure_id_take_value ()
gboolean | gst_structure_get ()
gboolean | gst_structure_get_valist ()
const GValue * | gst_structure_get_value ()
void | gst_structure_set_value ()
void | gst_structure_take_value ()
void | gst_structure_set ()
void | gst_structure_set_valist ()
void | gst_structure_id_set ()
void | gst_structure_id_set_valist ()
void | gst_structure_remove_field ()
void | gst_structure_remove_fields ()
void | gst_structure_remove_fields_valist ()
void | gst_structure_remove_all_fields ()
GType | gst_structure_get_field_type ()
gint | gst_structure_n_fields ()
gboolean | gst_structure_has_field ()
gboolean | gst_structure_has_field_typed ()
gboolean | gst_structure_is_equal ()
gboolean | gst_structure_is_subset ()
gboolean | gst_structure_can_intersect ()
GstStructure * | gst_structure_intersect ()
gboolean | gst_structure_id_has_field ()
gboolean | gst_structure_id_has_field_typed ()
gboolean | gst_structure_get_boolean ()
gboolean | gst_structure_get_int ()
gboolean | gst_structure_get_uint ()
gboolean | gst_structure_get_int64 ()
gboolean | gst_structure_get_uint64 ()
gboolean | gst_structure_get_double ()
const gchar * | gst_structure_get_string ()
gboolean | gst_structure_get_date ()
gboolean | gst_structure_get_date_time ()
gboolean | gst_structure_get_clock_time ()
gboolean | gst_structure_get_enum ()
gboolean | gst_structure_get_fraction ()
gboolean | gst_structure_foreach ()
gboolean | gst_structure_map_in_place ()
void | gst_structure_filter_and_map_in_place ()
const gchar * | gst_structure_nth_field_name ()
gboolean | gst_structure_set_parent_refcount ()
gchar * | gst_structure_to_string ()
GstStructure * | gst_structure_from_string ()
void | gst_structure_fixate ()
gboolean | gst_structure_fixate_field ()
gboolean | gst_structure_fixate_field_nearest_int ()
gboolean | gst_structure_fixate_field_nearest_double ()
gboolean | gst_structure_fixate_field_nearest_fraction ()
gboolean | gst_structure_fixate_field_boolean ()
gboolean | gst_structure_fixate_field_string ()

## Types and Values

struct | GstStructure

## Object Hierarchy

        GBoxed
        ╰── GstStructure

## Includes

    #include <gst/gst.h>

## Description

## Functions

### GstStructureForeachFunc ()

    gboolean
    (*GstStructureForeachFunc) (GQuark field_id,
                                const GValue *value,
                                gpointer user_data);

### GstStructureMapFunc ()

    gboolean
    (*GstStructureMapFunc) (GQuark field_id,
                            GValue *value,
                            gpointer user_data);

### GstStructureFilterMapFunc ()

    gboolean
    (*GstStructureFilterMapFunc) (GQuark field_id,
                                  GValue *value,
                                  gpointer user_data);

### gst_structure_new_empty ()

    GstStructure *
    gst_structure_new_empty (const gchar *name);

### gst_structure_new_id_empty ()

    GstStructure *
    gst_structure_new_id_empty (GQuark quark);

### gst_structure_new ()

    GstStructure *
    gst_structure_new (const gchar *name,
                       const gchar *firstfield,
                       ...);

### gst_structure_new_valist ()

    GstStructure *
    gst_structure_new_valist (const gchar *name,
                              const gchar *firstfield,
                              va_list varargs);

### gst_structure_new_id ()

    GstStructure *
    gst_structure_new_id (GQuark name_quark,
                          GQuark field_quark,
                          ...);

### gst_structure_new_from_string ()

    GstStructure *
    gst_structure_new_from_string (const gchar *string);

### gst_structure_copy ()

    GstStructure *
    gst_structure_copy (const GstStructure *structure);

### gst_structure_free ()

    void
    gst_structure_free (GstStructure *structure);

### gst_structure_get_name ()

    const gchar *
    gst_structure_get_name (const GstStructure *structure);

### gst_structure_has_name ()

    gboolean
    gst_structure_has_name (const GstStructure *structure,
                            const gchar *name);

### gst_structure_set_name ()

    void
    gst_structure_set_name (GstStructure *structure,
                            const gchar *name);

### gst_structure_get_name_id ()

    GQuark
    gst_structure_get_name_id (const GstStructure *structure);

### gst_structure_id_get ()

    gboolean
    gst_structure_id_get (const GstStructure *structure,
                          GQuark first_field_id,
                          ...);

### gst_structure_id_get_valist ()

    gboolean
    gst_structure_id_get_valist (const GstStructure *structure,
                                 GQuark first_field_id,
                                 va_list args);

### gst_structure_id_get_value ()

    const GValue *
    gst_structure_id_get_value (const GstStructure *structure,
                                GQuark field);

### gst_structure_id_set_value ()

    void
    gst_structure_id_set_value (GstStructure *structure,
                                GQuark field,
                                const GValue *value);

### gst_structure_id_take_value ()

    void
    gst_structure_id_take_value (GstStructure *structure,
                                 GQuark field,
                                 GValue *value);

### gst_structure_get ()

    gboolean
    gst_structure_get (const GstStructure *structure,
                       const char *first_fieldname,
                       ...);

### gst_structure_get_valist ()

    gboolean
    gst_structure_get_valist (const GstStructure *structure,
                              const char *first_fieldname,
                              va_list args);

### gst_structure_get_value ()

    const GValue *
    gst_structure_get_value (const GstStructure *structure,
                             const gchar *fieldname);

### gst_structure_set_value ()

    void
    gst_structure_set_value (GstStructure *structure,
                             const gchar *fieldname,
                             const GValue *value);

### gst_structure_take_value ()

    void
    gst_structure_take_value (GstStructure *structure,
                              const gchar *fieldname,
                              GValue *value);

### gst_structure_set ()

    void
    gst_structure_set (GstStructure *structure,
                       const gchar *fieldname,
                       ...);

### gst_structure_set_valist ()

    void
    gst_structure_set_valist (GstStructure *structure,
                              const gchar *fieldname,
                              va_list varargs);

### gst_structure_id_set ()

    void
    gst_structure_id_set (GstStructure *structure,
                          GQuark fieldname,
                          ...);

### gst_structure_id_set_valist ()

    void
    gst_structure_id_set_valist (GstStructure *structure,
                                 GQuark fieldname,
                                 va_list varargs);

### gst_structure_remove_field ()

    void
    gst_structure_remove_field (GstStructure *structure,
                                const gchar *fieldname);

### gst_structure_remove_fields ()

    void
    gst_structure_remove_fields (GstStructure *structure,
                                 const gchar *fieldname,
                                 ...);

### gst_structure_remove_fields_valist ()

    void
    gst_structure_remove_fields_valist (GstStructure *structure,
                                        const gchar *fieldname,
                                        va_list varargs);

### gst_structure_remove_all_fields ()

    void
    gst_structure_remove_all_fields (GstStructure *structure);

### gst_structure_get_field_type ()

    GType
    gst_structure_get_field_type (const GstStructure *structure,
                                  const gchar *fieldname);

### gst_structure_n_fields ()

    gint
    gst_structure_n_fields (const GstStructure *structure);

### gst_structure_has_field ()

    gboolean
    gst_structure_has_field (const GstStructure *structure,
                             const gchar *fieldname);

### gst_structure_has_field_typed ()

    gboolean
    gst_structure_has_field_typed (const GstStructure *structure,
                                   const gchar *fieldname,
                                   GType type);

### gst_structure_is_equal ()

    gboolean
    gst_structure_is_equal (const GstStructure *structure1,
                            const GstStructure *structure2);

### gst_structure_is_subset ()

    gboolean
    gst_structure_is_subset (const GstStructure *subset,
                             const GstStructure *superset);

### gst_structure_can_intersect ()

    gboolean
    gst_structure_can_intersect (const GstStructure *struct1,
                                 const GstStructure *struct2);

### gst_structure_intersect ()

    GstStructure *
    gst_structure_intersect (const GstStructure *struct1,
                             const GstStructure *struct2);

### gst_structure_id_has_field ()

    gboolean
    gst_structure_id_has_field (const GstStructure *structure,
                                GQuark field);

### gst_structure_id_has_field_typed ()

    gboolean
    gst_structure_id_has_field_typed (const GstStructure *structure,
                                      GQuark field,
                                      GType type);

### gst_structure_get_boolean ()

    gboolean
    gst_structure_get_boolean (const GstStructure *structure,
                               const gchar *fieldname,
                               gboolean *value);

### gst_structure_get_int ()

    gboolean
    gst_structure_get_int (const GstStructure *structure,
                           const gchar *fieldname,
                           gint *value);

### gst_structure_get_uint ()

    gboolean
    gst_structure_get_uint (const GstStructure *structure,
                            const gchar *fieldname,
                            guint *value);

### gst_structure_get_int64 ()

    gboolean
    gst_structure_get_int64 (const GstStructure *structure,
                             const gchar *fieldname,
                             gint64 *value);

### gst_structure_get_uint64 ()

    gboolean
    gst_structure_get_uint64 (const GstStructure *structure,
                              const gchar *fieldname,
                              guint64 *value);

### gst_structure_get_double ()

    gboolean
    gst_structure_get_double (const GstStructure *structure,
                              const gchar *fieldname,
                              gdouble *value);

### gst_structure_get_string ()

    const gchar *
    gst_structure_get_string (const GstStructure *structure,
                              const gchar *fieldname);

### gst_structure_get_date ()

    gboolean
    gst_structure_get_date (const GstStructure *structure,
                            const gchar *fieldname,
                            GDate **value);

### gst_structure_get_date_time ()

    gboolean
    gst_structure_get_date_time (const GstStructure *structure,
                                 const gchar *fieldname,
                                 GstDateTime **value);

### gst_structure_get_clock_time ()

    gboolean
    gst_structure_get_clock_time (const GstStructure *structure,
                                  const gchar *fieldname,
                                  GstClockTime *value);

### gst_structure_get_enum ()

    gboolean
    gst_structure_get_enum (const GstStructure *structure,
                            const gchar *fieldname,
                            GType enumtype,
                            gint *value);

### gst_structure_get_fraction ()

    gboolean
    gst_structure_get_fraction (const GstStructure *structure,
                                const gchar *fieldname,
                                gint *value_numerator,
                                gint *value_denominator);

### gst_structure_foreach ()

    gboolean
    gst_structure_foreach (const GstStructure *structure,
                           GstStructureForeachFunc func,
                           gpointer user_data);

### gst_structure_map_in_place ()

    gboolean
    gst_structure_map_in_place (GstStructure *structure,
                                GstStructureMapFunc func,
                                gpointer user_data);

### gst_structure_filter_and_map_in_place ()

    void
    gst_structure_filter_and_map_in_place (GstStructure *structure,
                                           GstStructureFilterMapFunc func,
                                           gpointer user_data);

### gst_structure_nth_field_name ()

    const gchar *
    gst_structure_nth_field_name (const GstStructure *structure,
                                  guint index);

### gst_structure_set_parent_refcount ()

    gboolean
    gst_structure_set_parent_refcount (GstStructure *structure,
                                       gint *refcount);

### gst_structure_to_string ()

    gchar *
    gst_structure_to_string (const GstStructure *structure);

### gst_structure_from_string ()

    GstStructure *
    gst_structure_from_string (const gchar *string,
                               gchar **end);

### gst_structure_fixate ()

    void
    gst_structure_fixate (GstStructure *structure);

### gst_structure_fixate_field ()

    gboolean
    gst_structure_fixate_field (GstStructure *structure,
                                const char *field_name);

### gst_structure_fixate_field_nearest_int ()

    gboolean
    gst_structure_fixate_field_nearest_int
                                   (GstStructure *structure,
                                    const char *field_name,
                                    int target);

### gst_structure_fixate_field_nearest_double ()

    gboolean
    gst_structure_fixate_field_nearest_double
                                   (GstStructure *structure,
                                    const char *field_name,
                                    double target);

### gst_structure_fixate_field_nearest_fraction ()

    gboolean
    gst_structure_fixate_field_nearest_fraction
                                   (GstStructure *structure,
                                    const char *field_name,
                                    const gint target_numerator,
                                    const gint target_denominator);

### gst_structure_fixate_field_boolean ()

    gboolean
    gst_structure_fixate_field_boolean (GstStructure *structure,
                                        const char *field_name,
                                        gboolean target);

### gst_structure_fixate_field_string ()

    gboolean
    gst_structure_fixate_field_string (GstStructure *structure,
                                       const char *field_name,
                                       const gchar *target);

## Types and Values

### struct GstStructure

    struct GstStructure {
      GType type;
    };