- addOnChildAdded
gulong addOnChildAdded(void delegate(ObjectG, string, ChildProxyIF) dlg, ConnectFlags connectFlags)
Will be emitted after the @object was added to the @child_proxy.
- addOnChildRemoved
gulong addOnChildRemoved(void delegate(ObjectG, string, ChildProxyIF) dlg, ConnectFlags connectFlags)
Will be emitted after the @object was removed from the @child_proxy.
- childAdded
void childAdded(ObjectG child, string name)
Emits the "child-added" signal.
- childGetProperty
void childGetProperty(string name, Value value)
Gets a single property using the GstChildProxy mechanism.
You are responsible for freeing it by calling g_value_unset()
- childGetValist
void childGetValist(string firstPropertyName, void* varArgs)
Gets properties of the parent object and its children.
- childRemoved
void childRemoved(ObjectG child, string name)
Emits the "child-removed" signal.
- childSetProperty
void childSetProperty(string name, Value value)
Sets a single property using the GstChildProxy mechanism.
- childSetValist
void childSetValist(string firstPropertyName, void* varArgs)
Sets properties of the parent object and its children.
- getChildByIndex
ObjectG getChildByIndex(uint index)
Fetches a child by its number.
- getChildByName
ObjectG getChildByName(string name)
Looks up a child element by the given name.
- getChildProxyStruct
GstChildProxy* getChildProxyStruct(bool transferOwnership)
- getChildrenCount
uint getChildrenCount()
Gets the number of child objects this parent contains.
- lookup
bool lookup(string name, ObjectG target, ParamSpec pspec)
Looks up which object and #GParamSpec would be effected by the given @name.
This interface abstracts handling of property sets for elements with children. Imagine elements such as mixers or polyphonic generators. They all have multiple #GstPad or some kind of voice objects. Another use case are container elements like #GstBin. The element implementing the interface acts as a parent for those child objects.
By implementing this interface the child properties can be accessed from the parent element by using gst_child_proxy_get() and gst_child_proxy_set().
Property names are written as "child-name::property-name". The whole naming scheme is recursive. Thus "child1::child2::property" is valid too, if "child1" and "child2" implement the #GstChildProxy interface.