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docs: update GESTrackElement
This commit is contained in:
Henry Wilkes
Thibault Saunier
parent
cb35f5ec50
commit
b3d44f66b7
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@ -21,14 +21,25 @@
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/**
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* SECTION:gestrackelement
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* @title: GESTrackElement
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* @short_description: Base Class for objects contained in a GESTrack
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* @short_description: Base Class for the elements of a #GESTrack
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*
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* #GESTrackElement is the Base Class for any object that can be contained in a
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* #GESTrack.
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* A #GESTrackElement is a #GESTimelineElement that specifically belongs
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* to a single #GESTrack of its #GESTimelineElement:timeline. Its
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* #GESTimelineElement:start and #GESTimelineElement:duration specify its
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* temporal extent in the track. Specifically, a track element wraps some
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* nleobject, such as an #nlesource or #nleoperation, which can be
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* retrieved with ges_track_element_get_nleobject(), and its
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* #GESTimelineElement:start, #GESTimelineElement:duration,
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* #GESTimelineElement:in-point, #GESTimelineElement:priority and
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* #GESTrackElement:active properties expose the corresponding nleobject
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* properties. When a track element is added to a track, its nleobject is
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* added to the corresponding #nlecomposition that the track wraps.
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*
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* It contains the basic information as to the location of the object within
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* its container, like the start position, the inpoint, the duration and the
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* priority.
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* Most users will not have to work directly with track elements since a
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* #GESClip will automatically create track elements for its timeline's
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* tracks and take responsibility for updating them. The only track
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* elements that are not automatically created by clips, but a user is
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* likely to want to create, are #GESEffect-s.
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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@ -267,8 +278,9 @@ ges_track_element_class_init (GESTrackElementClass * klass)
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/**
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* GESTrackElement:active:
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*
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* Whether the object should be taken into account in the #GESTrack output.
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* If #FALSE, then its contents will not be used in the resulting track.
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* Whether the effect of the element should be applied in its
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* #GESTrackElement:track. If set to %FALSE, it will not be used in
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* the output of the track.
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*/
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properties[PROP_ACTIVE] =
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g_param_spec_boolean ("active", "Active", "Use object in output", TRUE,
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@ -276,12 +288,26 @@ ges_track_element_class_init (GESTrackElementClass * klass)
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g_object_class_install_property (object_class, PROP_ACTIVE,
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properties[PROP_ACTIVE]);
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/**
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* GESTrackElement:track-type:
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*
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* The track type of the element, which determines the type of track the
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* element can be added to (see #GESTrack:track-type). This should
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* correspond to the type of data that the element can produce or
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* process.
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*/
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properties[PROP_TRACK_TYPE] = g_param_spec_flags ("track-type", "Track Type",
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"The track type of the object", GES_TYPE_TRACK_TYPE,
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GES_TRACK_TYPE_UNKNOWN, G_PARAM_READWRITE | G_PARAM_CONSTRUCT);
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g_object_class_install_property (object_class, PROP_TRACK_TYPE,
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properties[PROP_TRACK_TYPE]);
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/**
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* GESTrackElement:track:
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*
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* The track that this element belongs to, or %NULL if it does not
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* belong to a track.
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*/
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properties[PROP_TRACK] = g_param_spec_object ("track", "Track",
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"The track the object is in", GES_TYPE_TRACK, G_PARAM_READABLE);
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g_object_class_install_property (object_class, PROP_TRACK,
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@ -289,11 +315,11 @@ ges_track_element_class_init (GESTrackElementClass * klass)
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/**
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* GESTrackElement::control-binding-added:
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* @track_element: a #GESTrackElement
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* @control_binding: the #GstControlBinding that has been added
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* @track_element: A #GESTrackElement
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* @control_binding: The control binding that has been added
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*
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* The control-binding-added signal is emitted each time a control binding
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* is added for a child property of @track_element
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* This is emitted when a control binding is added to a child property
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* of the track element.
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*/
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ges_track_element_signals[CONTROL_BINDING_ADDED] =
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g_signal_new ("control-binding-added", G_TYPE_FROM_CLASS (klass),
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@ -302,11 +328,11 @@ ges_track_element_class_init (GESTrackElementClass * klass)
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/**
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* GESTrackElement::control-binding-removed:
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* @track_element: a #GESTrackElement
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* @control_binding: the #GstControlBinding that has been removed
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* @track_element: A #GESTrackElement
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* @control_binding: The control binding that has been removed
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*
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* The control-binding-removed signal is emitted each time a control binding
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* is removed for a child property of @track_element
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* This is emitted when a control binding is removed from a child
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* property of the track element.
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*/
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ges_track_element_signals[CONTROL_BINDING_REMOVED] =
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g_signal_new ("control-binding-removed", G_TYPE_FROM_CLASS (klass),
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@ -557,13 +583,12 @@ _get_track_types (GESTimelineElement * object)
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/**
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* ges_track_element_set_active:
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* @object: a #GESTrackElement
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* @active: visibility
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* @object: A #GESTrackElement
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* @active: Whether @object should be active in its track
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*
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* Sets the usage of the @object. If @active is %TRUE, the object will be used for
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* playback and rendering, else it will be ignored.
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* Sets #GESTrackElement:active for the element.
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*
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* Returns: %TRUE if the property was toggled, else %FALSE
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* Returns: %TRUE if the property was *toggled*.
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*/
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gboolean
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ges_track_element_set_active (GESTrackElement * object, gboolean active)
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@ -578,6 +603,7 @@ ges_track_element_set_active (GESTrackElement * object, gboolean active)
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g_object_set (object->priv->nleobject, "active", active, NULL);
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/* FIXME: no need to check again at this point */
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if (active != object->active) {
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object->active = active;
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if (GES_TRACK_ELEMENT_GET_CLASS (object)->active_changed)
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@ -587,6 +613,13 @@ ges_track_element_set_active (GESTrackElement * object, gboolean active)
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return TRUE;
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}
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/**
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* ges_track_element_set_track_type:
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* @object: A #GESTrackElement
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* @type: The new track-type for @object
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*
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* Sets the #GESTrackElement:track-type for the element.
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*/
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void
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ges_track_element_set_track_type (GESTrackElement * object, GESTrackType type)
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{
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@ -598,6 +631,14 @@ ges_track_element_set_track_type (GESTrackElement * object, GESTrackType type)
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}
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}
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/**
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* ges_track_element_get_track_type:
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* @object: A #GESTrackElement
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*
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* Gets the #GESTrackElement:track-type for the element.
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*
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* Returns: The track-type of @object.
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*/
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GESTrackType
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ges_track_element_get_track_type (GESTrackElement * object)
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{
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@ -699,6 +740,7 @@ ges_track_element_add_child_props (GESTrackElement * self,
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guint i;
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factory = gst_element_get_factory (child);
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/* FIXME: handle NULL factory */
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klass = gst_element_factory_get_metadata (factory,
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GST_ELEMENT_METADATA_KLASS);
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@ -740,20 +782,28 @@ ges_track_element_add_child_props (GESTrackElement * self,
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/**
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* ges_track_element_add_children_props:
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* @self: The #GESTrackElement to set chidlren props on
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* @element: The GstElement to retrieve properties from
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* @self: A #GESTrackElement
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* @element: The child object to retrieve properties from
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* @wanted_categories: (array zero-terminated=1) (transfer none) (allow-none):
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* An array of categories of GstElement to
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* take into account (as defined in the factory meta "klass" field)
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* An array of element factory "klass" categories to whitelist, or %NULL
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* to accept all categories
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* @blacklist: (array zero-terminated=1) (transfer none) (allow-none): A
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* blacklist of elements factory names to not take into account
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* @whitelist: (array zero-terminated=1) (transfer none) (allow-none): A list
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* of propery names to add as children properties
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* blacklist of element factory names, or %NULL to not blacklist any
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* element factory
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* @whitelist: (array zero-terminated=1) (transfer none) (allow-none): A
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* whitelist of element property names, or %NULL to whitelist all
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* writeable properties
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*
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* Looks for the properties defines with the various parametters and add
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* them to the hashtable of children properties.
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* Adds all the properties of a #GstElement that match the criteria as
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* children properties of the track element. If the name of @element's
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* #GstElementFactory is not in @blacklist, and the factory's
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* #GST_ELEMENT_METADATA_KLASS contains at least one member of
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* @wanted_categories (e.g. #GST_ELEMENT_FACTORY_KLASS_DECODER), then
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* all the properties of @element that are also in @whitelist are added as
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* child properties of @self using
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* ges_timeline_element_add_child_property().
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*
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* To be used by subclasses only
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* This is intended to be used by subclasses when constructing.
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*/
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void
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ges_track_element_add_children_props (GESTrackElement * self,
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@ -827,10 +877,18 @@ ges_track_element_set_track (GESTrackElement * object, GESTrack * track)
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/**
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* ges_track_element_get_all_control_bindings
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* @trackelement: The #GESTrackElement from which to get all set bindings
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* @trackelement: A #GESTrackElement
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*
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* Get all the control bindings that have been created for the children
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* properties of the track element using
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* ges_track_element_set_control_source(). The keys used in the returned
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* hash table are the child property names that were passed to
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* ges_track_element_set_control_source(), and their values are the
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* corresponding created #GstControlBinding.
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*
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* Returns: (element-type gchar* GstControlBinding)(transfer none): A
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* #GHashTable containing all property_name: GstControlBinding
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* hash table containing all child-property-name/control-binding pairs
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* for @trackelement.
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*/
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GHashTable *
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ges_track_element_get_all_control_bindings (GESTrackElement * trackelement)
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@ -842,12 +900,12 @@ ges_track_element_get_all_control_bindings (GESTrackElement * trackelement)
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/**
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* ges_track_element_get_track:
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* @object: a #GESTrackElement
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* @object: A #GESTrackElement
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*
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* Get the #GESTrack to which this object belongs.
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* Get the #GESTrackElement:track for the element.
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*
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* Returns: (transfer none) (nullable): The #GESTrack to which this object
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* belongs. Can be %NULL if it is not in any track
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* Returns: (transfer none) (nullable): The track that @object belongs to,
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* or %NULL if it does not belong to a track.
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*/
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GESTrack *
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ges_track_element_get_track (GESTrackElement * object)
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@ -859,11 +917,11 @@ ges_track_element_get_track (GESTrackElement * object)
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/**
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* ges_track_element_get_gnlobject:
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* @object: a #GESTrackElement
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* @object: A #GESTrackElement
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*
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* Get the NleObject object this object is controlling.
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* Get the GNonLin object this object is controlling.
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*
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* Returns: (transfer none): the NleObject object this object is controlling.
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* Returns: (transfer none): The GNonLin object this object is controlling.
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*
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* Deprecated: use #ges_track_element_get_nleobject instead.
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*/
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@ -877,11 +935,11 @@ ges_track_element_get_gnlobject (GESTrackElement * object)
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/**
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* ges_track_element_get_nleobject:
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* @object: a #GESTrackElement
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* @object: A #GESTrackElement
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*
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* Get the GNonLin object this object is controlling.
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* Get the nleobject that this element wraps.
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*
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* Returns: (transfer none): the GNonLin object this object is controlling.
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* Returns: (transfer none): The nleobject that @object wraps.
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*
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* Since: 1.6
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*/
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@ -895,12 +953,13 @@ ges_track_element_get_nleobject (GESTrackElement * object)
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/**
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* ges_track_element_get_element:
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* @object: a #GESTrackElement
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* @object: A #GESTrackElement
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*
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* Get the #GstElement this track element is controlling within GNonLin.
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* Get the #GstElement that the track element's underlying nleobject
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* controls.
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*
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* Returns: (transfer none): the #GstElement this track element is controlling
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* within GNonLin.
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* Returns: (transfer none): The #GstElement being controlled by the
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* nleobject that @object wraps.
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*/
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GstElement *
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ges_track_element_get_element (GESTrackElement * object)
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@ -912,12 +971,11 @@ ges_track_element_get_element (GESTrackElement * object)
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/**
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* ges_track_element_is_active:
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* @object: a #GESTrackElement
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* @object: A #GESTrackElement
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*
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* Lets you know if @object will be used for playback and rendering,
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* or not.
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* Gets #GESTrackElement:active for the element.
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*
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* Returns: %TRUE if @object is active, %FALSE otherwize
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* Returns: %TRUE if @object is active in its track.
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*/
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gboolean
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ges_track_element_is_active (GESTrackElement * object)
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@ -930,15 +988,15 @@ ges_track_element_is_active (GESTrackElement * object)
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/**
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* ges_track_element_lookup_child:
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* @object: object to lookup the property in
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* @prop_name: name of the property to look up. You can specify the name of the
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* @object: Object to lookup the property in
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* @prop_name: Name of the property to look up. You can specify the name of the
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* class as such: "ClassName::property-name", to guarantee that you get the
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* proper GParamSpec in case various GstElement-s contain the same property
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* name. If you don't do so, you will get the first element found, having
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* this property and the and the corresponding GParamSpec.
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* @element: (out) (allow-none) (transfer full): pointer to a #GstElement that
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* takes the real object to set property on
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* @pspec: (out) (allow-none) (transfer full): pointer to take the #GParamSpec
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* @pspec: (out) (allow-none) (transfer full): pointer to take the specification
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* describing the property
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*
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* Looks up which @element and @pspec would be effected by the given @name. If various
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@ -961,9 +1019,9 @@ ges_track_element_lookup_child (GESTrackElement * object,
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/**
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* ges_track_element_set_child_property_by_pspec: (skip):
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* @object: a #GESTrackElement
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* @object: A #GESTrackElement
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* @pspec: The #GParamSpec that specifies the property you want to set
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* @value: the value
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* @value: The value
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*
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* Sets a property of a child of @object.
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*
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@ -985,7 +1043,7 @@ ges_track_element_set_child_property_by_pspec (GESTrackElement * object,
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* ges_track_element_set_child_property_valist: (skip):
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* @object: The #GESTrackElement parent object
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* @first_property_name: The name of the first property to set
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* @var_args: value for the first property, followed optionally by more
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* @var_args: Value for the first property, followed optionally by more
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* name/return location pairs, followed by NULL
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*
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* Sets a property of a child of @object. If there are various child elements
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@ -1035,7 +1093,7 @@ ges_track_element_set_child_properties (GESTrackElement * object,
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* ges_track_element_get_child_property_valist: (skip):
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* @object: The #GESTrackElement parent object
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* @first_property_name: The name of the first property to get
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* @var_args: value for the first property, followed optionally by more
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* @var_args: Value for the first property, followed optionally by more
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* name/return location pairs, followed by NULL
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*
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* Gets a property of a child of @object. If there are various child elements
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@ -1061,8 +1119,8 @@ ges_track_element_get_child_property_valist (GESTrackElement * object,
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* Gets an array of #GParamSpec* for all configurable properties of the
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* children of @object.
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*
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* Returns: (transfer full) (array length=n_properties): an array of #GParamSpec* which should be freed after use or
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* %NULL if something went wrong
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* Returns: (transfer full) (array length=n_properties): An array of #GParamSpec* which should be freed after use or
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* %NULL if something went wrong.
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*
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* Deprecated: Use #ges_timeline_element_list_children_properties
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*/
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@ -1102,7 +1160,7 @@ ges_track_element_get_child_properties (GESTrackElement * object,
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/**
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* ges_track_element_get_child_property_by_pspec: (skip):
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* @object: a #GESTrackElement
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* @object: A #GESTrackElement
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* @pspec: The #GParamSpec that specifies the property you want to get
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* @value: (out): return location for the value
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*
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@ -1122,7 +1180,7 @@ ges_track_element_get_child_property_by_pspec (GESTrackElement * object,
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* ges_track_element_set_child_property: (skip):
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* @object: The origin #GESTrackElement
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* @property_name: The name of the property
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* @value: the value
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* @value: The value
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*
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* Sets a property of a GstElement contained in @object.
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*
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@ -1130,7 +1188,7 @@ ges_track_element_get_child_property_by_pspec (GESTrackElement * object,
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* intended for language bindings, #ges_track_element_set_child_properties
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* is much more convenient for C programming.
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*
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* Returns: %TRUE if the property was set, %FALSE otherwize
|
||||
* Returns: %TRUE if the property was set, %FALSE otherwize.
|
||||
*
|
||||
* Deprecated: use #ges_timeline_element_set_child_property instead
|
||||
*/
|
||||
|
|
@ -1159,7 +1217,7 @@ ges_track_element_set_child_property (GESTrackElement * object,
|
|||
* intended for language bindings, #ges_track_element_get_child_properties
|
||||
* is much more convenient for C programming.
|
||||
*
|
||||
* Returns: %TRUE if the property was found, %FALSE otherwize
|
||||
* Returns: %TRUE if the property was found, %FALSE otherwize.
|
||||
*
|
||||
* Deprecated: Use #ges_timeline_element_get_child_property
|
||||
*/
|
||||
|
|
@ -1331,20 +1389,18 @@ ges_track_element_copy_bindings (GESTrackElement * element,
|
|||
|
||||
/**
|
||||
* ges_track_element_edit:
|
||||
* @object: the #GESTrackElement to edit
|
||||
* @layers: (element-type GESLayer): The layers you want the edit to
|
||||
* happen in, %NULL means that the edition is done in all the
|
||||
* #GESLayers contained in the current timeline.
|
||||
* FIXME: This is not implemented yet.
|
||||
* @mode: The #GESEditMode in which the edition will happen.
|
||||
* @edge: The #GESEdge the edit should happen on.
|
||||
* @position: The position at which to edit @object (in nanosecond)
|
||||
* @object: The #GESTrackElement to edit
|
||||
* @layers: (element-type GESLayer) (nullable): A whitelist of layers
|
||||
* where the edit can be performed, %NULL allows all layers in the
|
||||
* timeline
|
||||
* @mode: The edit mode
|
||||
* @edge: The edge of @object where the edit should occur
|
||||
* @position: The edit position: a new location for the edge of @object
|
||||
* (in nanoseconds)
|
||||
*
|
||||
* Edit @object in the different exisiting #GESEditMode modes. In the case of
|
||||
* slide, and roll, you need to specify a #GESEdge
|
||||
* Edits the element within its track.
|
||||
*
|
||||
* Returns: %TRUE if the object as been edited properly, %FALSE if an error
|
||||
* occured
|
||||
* Returns: %TRUE if the edit of @object completed, %FALSE on failure.
|
||||
*
|
||||
* Deprecated: 1.18: use #ges_timeline_element_edit instead.
|
||||
*/
|
||||
|
|
@ -1360,13 +1416,18 @@ ges_track_element_edit (GESTrackElement * object,
|
|||
|
||||
/**
|
||||
* ges_track_element_remove_control_binding:
|
||||
* @object: the #GESTrackElement on which to set a control binding
|
||||
* @property_name: The name of the property to control.
|
||||
* @object: A #GESTrackElement
|
||||
* @property_name: The name of the child property to remove the control
|
||||
* binding from
|
||||
*
|
||||
* Removes a #GstControlBinding from @object.
|
||||
* Removes the #GstControlBinding that was created for the specified child
|
||||
* property of the track element using
|
||||
* ges_track_element_set_control_source(). The given @property_name must
|
||||
* be the same name of the child property that was passed to
|
||||
* ges_track_element_set_control_source().
|
||||
*
|
||||
* Returns: %TRUE if the binding could be removed, %FALSE if an error
|
||||
* occured
|
||||
* Returns: %TRUE if the control binding was removed from the specified
|
||||
* child property of @object, or %FALSE if an error occurred.
|
||||
*/
|
||||
gboolean
|
||||
ges_track_element_remove_control_binding (GESTrackElement * object,
|
||||
|
|
@ -1406,19 +1467,24 @@ ges_track_element_remove_control_binding (GESTrackElement * object,
|
|||
|
||||
/**
|
||||
* ges_track_element_set_control_source:
|
||||
* @object: the #GESTrackElement on which to set a control binding
|
||||
* @source: the #GstControlSource to set on the binding.
|
||||
* @property_name: The name of the property to control.
|
||||
* @binding_type: The type of binding to create. Currently the following values are valid:
|
||||
* - "direct": See #gst_direct_control_binding_new
|
||||
* - "direct-absolute": See #gst_direct_control_binding_new_absolute
|
||||
* @object: A #GESTrackElement
|
||||
* @source: The control source to bind the child property to
|
||||
* @property_name: The name of the child property to control
|
||||
* @binding_type: The type of binding to create ("direct" or
|
||||
* "direct-absolute")
|
||||
*
|
||||
* Creates a #GstControlBinding and adds it to the #GstElement concerned by the
|
||||
* property. Use the same syntax as #ges_track_element_lookup_child for
|
||||
* the property name.
|
||||
* Creates a #GstControlBinding for the specified child property of the
|
||||
* track element using the given control source. The given @property_name
|
||||
* should refer to an existing child property of the track element, as
|
||||
* used in ges_timeline_element_lookup_child().
|
||||
*
|
||||
* Returns: %TRUE if the binding could be created and added, %FALSE if an error
|
||||
* occured
|
||||
* If @binding_type is "direct", then the control binding is created with
|
||||
* gst_direct_control_binding_new() using the given control source. If
|
||||
* @binding_type is "direct-absolute", it is created with
|
||||
* gst_direct_control_binding_new_absolute() instead.
|
||||
*
|
||||
* Returns: %TRUE if the specified child property could be bound to
|
||||
* @source, or %FALSE if an error occurred.
|
||||
*/
|
||||
gboolean
|
||||
ges_track_element_set_control_source (GESTrackElement * object,
|
||||
|
|
@ -1465,6 +1531,13 @@ ges_track_element_set_control_source (GESTrackElement * object,
|
|||
source);
|
||||
|
||||
gst_object_add_control_binding (GST_OBJECT (element), binding);
|
||||
/* FIXME: maybe we should force the
|
||||
* "ChildTypeName:property-name"
|
||||
* format convention for child property names in bindings_hashtable.
|
||||
* Currently the table may also contain
|
||||
* "property-name"
|
||||
* as keys.
|
||||
*/
|
||||
g_hash_table_insert (priv->bindings_hashtable, g_strdup (property_name),
|
||||
binding);
|
||||
g_signal_emit (object, ges_track_element_signals[CONTROL_BINDING_ADDED],
|
||||
|
|
@ -1479,14 +1552,19 @@ ges_track_element_set_control_source (GESTrackElement * object,
|
|||
|
||||
/**
|
||||
* ges_track_element_get_control_binding:
|
||||
* @object: the #GESTrackElement in which to lookup the bindings.
|
||||
* @property_name: The property_name to which the binding is associated.
|
||||
* @object: A #GESTrackElement
|
||||
* @property_name: The name of the child property to return the control
|
||||
* binding of
|
||||
*
|
||||
* Looks up the various controlled properties for that #GESTrackElement,
|
||||
* and returns the #GstControlBinding which controls @property_name.
|
||||
* Gets the control binding that was created for the specified child
|
||||
* property of the track element using
|
||||
* ges_track_element_set_control_source(). The given @property_name must
|
||||
* be the same name of the child property that was passed to
|
||||
* ges_track_element_set_control_source().
|
||||
*
|
||||
* Returns: (transfer none) (nullable): the #GstControlBinding associated with
|
||||
* @property_name, or %NULL if that property is not controlled.
|
||||
* Returns: (transfer none) (nullable): The control binding that was
|
||||
* created for the specified child property of @object, or %NULL if
|
||||
* @property_name does not correspond to any control binding.
|
||||
*/
|
||||
GstControlBinding *
|
||||
ges_track_element_get_control_binding (GESTrackElement * object,
|
||||
|
|
|
|||
|
|
@ -53,7 +53,7 @@ typedef struct _GESTrackElementPrivate GESTrackElementPrivate;
|
|||
/**
|
||||
* GESTrackElement:
|
||||
*
|
||||
* The GESTrackElement base class.
|
||||
* The #GESTrackElement base class.
|
||||
*/
|
||||
struct _GESTrackElement {
|
||||
GESTimelineElement parent;
|
||||
|
|
@ -71,30 +71,20 @@ struct _GESTrackElement {
|
|||
|
||||
/**
|
||||
* GESTrackElementClass:
|
||||
* @nleobject_factorytype: name of the GNonLin GStElementFactory type to use.
|
||||
* @create_gnl_object: method to create the GNonLin container object.
|
||||
* @create_element: method to return the GstElement to put in the nleobject.
|
||||
* @active_changed: active property of nleobject has changed
|
||||
* @list_children_properties: method to get children properties that user could
|
||||
* like to configure.
|
||||
* The default implementation will create an object
|
||||
* of type @nleobject_factorytype and call
|
||||
* @create_element.
|
||||
* DeprecatedUse: GESTimelineElement.list_children_properties instead
|
||||
* @lookup_child: method letting subclasses look for a child, overriding the
|
||||
* simple standard behaviour. This vmethod can be used for example
|
||||
* in the case where you want the name of a child property to be
|
||||
* 'overriden'. A good example of where it is usefull is the
|
||||
* GESTitleSource where we have a videotestsrc which has a
|
||||
* 'foreground-color' property that is used in the TitleSource to
|
||||
* set the background color of the title, in that case, this method
|
||||
* has been overriden so that we tweak the name passed has parametter
|
||||
* to rename "background" to "foreground-backend" making our API
|
||||
* understandable.
|
||||
* Deprecated: use GESTimelineElement.lookup_child instead
|
||||
*
|
||||
* Subclasses can override the @create_gnl_object method to override what type
|
||||
* of GNonLin object will be created.
|
||||
* @nleobject_factorytype: The name of the #GstElementFactory to use to
|
||||
* create the underlying nleobject of a track element
|
||||
* @create_gnl_object: Method to create the underlying nleobject of the
|
||||
* track element. The default implementation will use the factory given by
|
||||
* @nleobject_factorytype to created the nleobject and will give it
|
||||
* the #GstElement returned by @create_element.
|
||||
* @create_element: Method to create the #GstElement that the underlying
|
||||
* nleobject controls.
|
||||
* @active_changed: Method to be called when the #GESTrackElement:active
|
||||
* property changes.
|
||||
* @list_children_properties: Deprecated: Listing children properties is
|
||||
* handled by ges_timeline_element_list_children_properties() instead.
|
||||
* @lookup_child: Deprecated: Use #GESTimelineElement.lookup_child()
|
||||
* instead.
|
||||
*/
|
||||
struct _GESTrackElementClass {
|
||||
/*< private >*/
|
||||
|
|
|
|||
Loading…
Reference in a new issue