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9e18e03939
The out-point, which is an internal time, is used instead of the duration for determining the control binding value at the end of the element. Also, allow the user to switch off the auto-clamping of control sources if they are not desired. And allow them to clamp specific control sources individually. Also, fix a lot of memory leaks related to control sources. In particular, releasing the extra ref gained by source in g_object_get (binding, "control-source", &source, NULL); Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-editing-services/-/merge_requests/177>
192 lines
6.9 KiB
C
192 lines
6.9 KiB
C
/* GStreamer Editing Services
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* Copyright (C) 2009 Edward Hervey <edward.hervey@collabora.co.uk>
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* 2009 Nokia Corporation
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#pragma once
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#include <glib-object.h>
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#include <gst/gst.h>
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#include <ges/ges-types.h>
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#include <ges/ges-clip.h>
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#include <ges/ges-track.h>
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#include <gst/controller/gstdirectcontrolbinding.h>
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#include <gst/controller/gstinterpolationcontrolsource.h>
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G_BEGIN_DECLS
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#define GES_TYPE_TRACK_ELEMENT ges_track_element_get_type()
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GES_DECLARE_TYPE(TrackElement, track_element, TRACK_ELEMENT)
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/**
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* GES_TRACK_ELEMENT_CLASS_DEFAULT_HAS_INTERNAL_SOURCE:
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* @klass: A #GESTrackElementClass
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*
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* What the default #GESTrackElement:has-internal-source value should be
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* for new elements from this class.
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*/
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#define GES_TRACK_ELEMENT_CLASS_DEFAULT_HAS_INTERNAL_SOURCE(klass) \
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((GES_TRACK_ELEMENT_CLASS (klass))->ABI.abi.default_has_internal_source)
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/**
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* GESTrackElement:
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*
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* The #GESTrackElement base class.
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*/
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struct _GESTrackElement {
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GESTimelineElement parent;
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/*< private >*/
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gboolean active;
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GESTrackElementPrivate *priv;
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GESAsset *asset;
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/* Padding for API extension */
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gpointer _ges_reserved[GES_PADDING_LARGE];
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};
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/**
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* GESTrackElementClass:
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* @nleobject_factorytype: The name of the #GstElementFactory to use to
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* create the underlying nleobject of a track element
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* @create_gnl_object: Method to create the underlying nleobject of the
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* track element. The default implementation will use the factory given by
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* @nleobject_factorytype to created the nleobject and will give it
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* the #GstElement returned by @create_element.
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* @create_element: Method to create the #GstElement that the underlying
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* nleobject controls.
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* @active_changed: Method to be called when the #GESTrackElement:active
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* property changes.
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* @list_children_properties: Deprecated: Listing children properties is
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* handled by ges_timeline_element_list_children_properties() instead.
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* @lookup_child: Deprecated: Use #GESTimelineElement.lookup_child()
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* instead.
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* @default_has_internal_source: What the default
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* #GESTrackElement:has-internal-source value should be for new elements
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* from this class.
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* @default_track_type: What the default #GESTrackElement:track-type value
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* should be for new elements from this class.
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*/
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struct _GESTrackElementClass {
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/*< private >*/
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GESTimelineElementClass parent_class;
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/*< public >*/
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/* virtual methods for subclasses */
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const gchar *nleobject_factorytype;
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GstElement* (*create_gnl_object) (GESTrackElement * object);
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GstElement* (*create_element) (GESTrackElement * object);
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void (*active_changed) (GESTrackElement *object, gboolean active);
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/*< private >*/
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/* signals (currently unused) */
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void (*changed) (GESTrackElement * object);
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/*< public >*/
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/* virtual methods for subclasses */
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GParamSpec** (*list_children_properties) (GESTrackElement * object,
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guint *n_properties);
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gboolean (*lookup_child) (GESTrackElement *object,
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const gchar *prop_name,
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GstElement **element,
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GParamSpec **pspec);
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/*< protected >*/
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union {
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gpointer _ges_reserved[GES_PADDING_LARGE];
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struct {
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gboolean default_has_internal_source;
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GESTrackType default_track_type;
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} abi;
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} ABI;
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};
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GES_API
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GESTrack* ges_track_element_get_track (GESTrackElement * object);
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GES_API
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GESTrackType ges_track_element_get_track_type (GESTrackElement * object);
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GES_API
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void ges_track_element_set_track_type (GESTrackElement * object,
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GESTrackType type);
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GES_API
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GstElement * ges_track_element_get_nleobject (GESTrackElement * object);
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GES_API
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GstElement * ges_track_element_get_element (GESTrackElement * object);
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GES_API
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gboolean ges_track_element_is_core (GESTrackElement * object);
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GES_API
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gboolean ges_track_element_set_active (GESTrackElement * object,
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gboolean active);
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GES_API
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gboolean ges_track_element_is_active (GESTrackElement * object);
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GES_API
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void ges_track_element_set_has_internal_source (GESTrackElement * object,
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gboolean has_internal_source);
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GES_API
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gboolean ges_track_element_has_internal_source (GESTrackElement * object);
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GES_API void
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ges_track_element_get_child_property_by_pspec (GESTrackElement * object,
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GParamSpec * pspec,
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GValue * value);
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GES_API gboolean
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ges_track_element_set_control_source (GESTrackElement *object,
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GstControlSource *source,
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const gchar *property_name,
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const gchar *binding_type);
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GES_API void
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ges_track_element_clamp_control_source (GESTrackElement * object,
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const gchar * property_name);
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GES_API void
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ges_track_element_set_auto_clamp_control_sources (GESTrackElement * object,
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gboolean auto_clamp);
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GES_API gboolean
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ges_track_element_get_auto_clamp_control_sources (GESTrackElement * object);
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GES_API GstControlBinding *
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ges_track_element_get_control_binding (GESTrackElement *object,
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const gchar *property_name);
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GES_API void
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ges_track_element_add_children_props (GESTrackElement *self,
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GstElement *element,
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const gchar ** wanted_categories,
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const gchar **blacklist,
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const gchar **whitelist);
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GES_API GHashTable *
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ges_track_element_get_all_control_bindings (GESTrackElement * trackelement);
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GES_API gboolean
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ges_track_element_remove_control_binding (GESTrackElement * object,
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const gchar * property_name);
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#include "ges-track-element-deprecated.h"
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G_END_DECLS
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