GstImplementsInterface

GstImplementsInterface — Core interface implemented by GstElement instances that allows runtime querying of interface availabillity

Synopsis


#include <gst/gst.h>


                    GstImplementsInterface;
gboolean            gst_element_implements_interface    (GstElement *element,
                                                         GType iface_type);
gpointer            gst_implements_interface_cast       (gpointer from,
                                                         GType type);
gboolean            gst_implements_interface_check      (gpointer from,
                                                         GType type);


Object Hierarchy


  GInterface
   +----GstImplementsInterface

Prerequisites

GstImplementsInterface requires GstElement.

Description

Provides interface functionality on per instance basis and not per class basis, which is the case for gobject.

Details

GstImplementsInterface

typedef struct _GstImplementsInterface GstImplementsInterface;

Opaque GstImplementsInterface structure.


gst_element_implements_interface ()

gboolean            gst_element_implements_interface    (GstElement *element,
                                                         GType iface_type);

Test whether the given element implements a certain interface of type iface_type, and test whether it is supported for this specific instance.

element : GstElement to check for the implementation of the interface
iface_type : (final) type of the interface which we want to be implemented
Returns : whether or not the element implements the interface.

gst_implements_interface_cast ()

gpointer            gst_implements_interface_cast       (gpointer from,
                                                         GType type);

cast a given object to an interface type, and check whether this interface is supported for this specific instance.

from : the object (any sort) from which to cast to the interface
type : the interface type to cast to
Returns : a gpointer to the interface type

gst_implements_interface_check ()

gboolean            gst_implements_interface_check      (gpointer from,
                                                         GType type);

check a given object for an interface implementation, and check whether this interface is supported for this specific instance.

from : the object (any sort) from which to check from for the interface
type : the interface type to check for
Returns : whether or not the object implements the given interface

See Also

GstElement