ElementFactory

Object Hierarchy:

Description:

public class ElementFactory : PluginFeature

ElementFactory is used to create instances of elements.

A GstElementfactory can be added to a Plugin as it is also a PluginFeature.

Use the find and create functions to create element instances or use make as a convenient shortcut.

The following code example shows you how to create a GstFileSrc element.

Using an element factory:

  #include <gst/gst.h>

  GstElement *src;
  GstElementFactory *srcfactory;

  gst_init (&argc, &argv);

  srcfactory = gst_element_factory_find ("filesrc");
  g_return_if_fail (srcfactory != NULL);
  src = gst_element_factory_create (srcfactory, "src");
  g_return_if_fail (src != NULL);
  ...

Last reviewed on 2005-11-23 (0.9.5)

Namespace: Gst

Package: gstreamer-0.10

Content:

Static methods:

public static ElementFactory? find (string name)
Search for an element factory of the given name.
public static List<ElementFactory> list_filter (List<ElementFactory> list, Caps caps, PadDirection direction, bool subsetonly)
Filter out all the elementfactories in list that can handle caps in the given direction.
public static List<ElementFactory> list_get_elements (ElementFactoryListType type, Rank minrank)
Get a list of factories that match the given type.
public static Element? make (string factoryname, string? name)
Create a new element of the type defined by the given element factory.

Creation methods:

protected ElementFactory ()

Methods:

public bool can_sink_all_caps (Caps caps)
Checks if the factory can sink all possible capabilities.
public bool can_sink_any_caps (Caps caps)
Checks if the factory can sink any possible capability.
public bool can_sink_caps (Caps caps)
Checks if the factory can sink the given capability.
public bool can_src_all_caps (Caps caps)
Checks if the factory can src all possible capabilities.
public bool can_src_any_caps (Caps caps)
Checks if the factory can src any possible capability.
public bool can_src_caps (Caps caps)
Checks if the factory can source the given capability.
public Element? create (string? name)
Create a new element of the type defined by the given elementfactory.
public unowned string get_author ()
Gets the author for this factory.
public unowned string get_description ()
Gets the description for this factory.
public unowned string get_documentation_uri ()
Gets documentation uri for this factory if set.
public Type get_element_type ()
Get the Type for elements managed by this factory.
public unowned string get_icon_name ()
Gets icon name for this factory if set.
public unowned string get_klass ()
Gets the class for this factory.
public unowned string get_longname ()
Gets the longname for this factory
public uint get_num_pad_templates ()
Gets the number of pad_templates in this factory.
public unowned List<StaticPadTemplate> get_static_pad_templates ()
Gets the List of StaticPadTemplate for this factory.
public string[]? get_uri_protocols ()
Gets a NULL-terminated array of protocols this element supports or NULL if no protocols are supported.
public int get_uri_type ()
Gets the type of URIs the element supports or UNKNOWN if none.
public bool has_interface (string interfacename)
Check if factory implements the interface with name interfacename.
public bool list_is_type (ElementFactoryListType type)
Check if factory is of the given types.

Inherited Members:

All known members inherited from class Gst.PluginFeature

All known members inherited from class Gst.Object

All known members inherited from class GLib.Object