/* gst-editing-services
* Copyright (C) <2013> Thibault Saunier <thibault.saunier@collabora.com>
* <2013> Collabora Ltd.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#pragma once
#include <glib-object.h>
#include <gst/gst.h>
#include "ges-enums.h"
#include "ges-types.h"
G_BEGIN_DECLS
#define GES_TYPE_TIMELINE_ELEMENT (ges_timeline_element_get_type ())
GES_DECLARE_TYPE(TimelineElement, timeline_element, TIMELINE_ELEMENT);
/**
* GES_TIMELINE_ELEMENT_START:
* @obj: A #GESTimelineElement
*
* The #GESTimelineElement:start of @obj.
*/
#define GES_TIMELINE_ELEMENT_START(obj) (((GESTimelineElement*)obj)->start)
/**
* GES_TIMELINE_ELEMENT_END:
* @obj: A #GESTimelineElement
*
* The end position of @obj: #GESTimelineElement:start +
* #GESTimelineElement:duration.
*/
#define GES_TIMELINE_ELEMENT_END(obj) ((((GESTimelineElement*)obj)->start) + (((GESTimelineElement*)obj)->duration))
/**
* GES_TIMELINE_ELEMENT_INPOINT:
* @obj: A #GESTimelineElement
*
* The #GESTimelineElement:in-point of @obj.
*/
#define GES_TIMELINE_ELEMENT_INPOINT(obj) (((GESTimelineElement*)obj)->inpoint)
/**
* GES_TIMELINE_ELEMENT_DURATION:
* @obj: A #GESTimelineElement
*
* The #GESTimelineElement:duration of @obj.
*/
#define GES_TIMELINE_ELEMENT_DURATION(obj) (((GESTimelineElement*)obj)->duration)
/**
* GES_TIMELINE_ELEMENT_MAX_DURATION:
* @obj: A #GESTimelineElement
*
* The #GESTimelineElement:max-duration of @obj.
*/
#define GES_TIMELINE_ELEMENT_MAX_DURATION(obj) (((GESTimelineElement*)obj)->maxduration)
/**
* GES_TIMELINE_ELEMENT_PRIORITY:
* @obj: A #GESTimelineElement
*
* The #GESTimelineElement:priority of @obj.
*/
#define GES_TIMELINE_ELEMENT_PRIORITY(obj) (((GESTimelineElement*)obj)->priority)
/**
* GES_TIMELINE_ELEMENT_NO_LAYER_PRIORITY:
*
* Layer priority when a timeline element is not in any layer.
*/
#define GES_TIMELINE_ELEMENT_NO_LAYER_PRIORITY ((guint32) -1)
/**
* GES_TIMELINE_ELEMENT_LAYER_PRIORITY:
* @obj: The object to retrieve the layer priority from
*
* See #ges_timeline_element_get_layer_priority.
*/
#define GES_TIMELINE_ELEMENT_LAYER_PRIORITY(obj) (ges_timeline_element_get_layer_priority(((GESTimelineElement*)obj)))
/**
* GES_TIMELINE_ELEMENT_PARENT:
* @obj: A #GESTimelineElement
*
* The #GESTimelineElement:parent of @obj.
*/
#define GES_TIMELINE_ELEMENT_PARENT(obj) (((GESTimelineElement*)obj)->parent)
/**
* GES_TIMELINE_ELEMENT_TIMELINE:
* @obj: A #GESTimelineElement
*
* The #GESTimelineElement:timeline of @obj.
*/
#define GES_TIMELINE_ELEMENT_TIMELINE(obj) (((GESTimelineElement*)obj)->timeline)
/**
* GES_TIMELINE_ELEMENT_NAME:
* @obj: A #GESTimelineElement
*
* The #GESTimelineElement:name of @obj.
*/
#define GES_TIMELINE_ELEMENT_NAME(obj) (((GESTimelineElement*)obj)->name)
/**
* GESTimelineElement:
* @parent: The #GESTimelineElement:parent of the element
* @asset: The #GESAsset from which the object has been extracted
* @start: The #GESTimelineElement:start of the element
* @inpoint: The #GESTimelineElement:in-point of the element
* @duration: The #GESTimelineElement:duration of the element
* @maxduration: The #GESTimelineElement:max-duration of the element
* @priority: The #GESTimelineElement:priority of the element
* @name: The #GESTimelineElement:name of the element
* @timeline: The #GESTimelineElement:timeline of the element
*
* All members can be read freely, but should usually not be written to.
* Subclasses may write to them, but should make sure to properly call
* g_object_notify().
*/
struct _GESTimelineElement
{
GInitiallyUnowned parent_instance;
/*< public > */
/*< read only >*/
GESTimelineElement *parent;
GESAsset *asset;
GstClockTime start;
GstClockTime inpoint;
GstClockTime duration;
GstClockTime maxduration;
guint32 priority;
GESTimeline *timeline;
gchar *name;
/*< private >*/
GESTimelineElementPrivate *priv;
/* Padding for API extension */
gpointer _ges_reserved[GES_PADDING_LARGE];
};
/**
* GESTimelineElementClass:
* @set_parent: Method called just before the #GESTimelineElement:parent
* is set.
* @set_start: Method called just before the #GESTimelineElement:start is
* set. This method should check whether the #GESTimelineElement:start can
* be changed to the new value and to otherwise prepare the element in
* response to what the new value will be. A return of %FALSE means that
* the property should not be set. A return of %TRUE means that the
* property should be set to the value given to the setter and a notify
* emitted. A return of -1 means that the property should not be set but
* the setter should still return %TRUE (normally because the method
* already handled setting the value, potentially to a snapped value, and
* emitted the notify signal).
* #GESTimelineElement:duration is set. This method should check
* whether the #GESTimelineElement:duration can be changed to the new
* value and to otherwise prepare the element in response to what the new
* value will be. A return of %FALSE means that the property should not be
* set. A return of %TRUE means that the property should be set to the
* value given to the setter and a notify emitted. A return of -1 means
* that the property should not be set but the setter should still return
* %TRUE (normally because the method already handled setting the value,
* potentially to a snapped value, and emitted the notify signal).
* @set_inpoint: Method called just before the
* #GESTimelineElement:in-point is set to a new value. This method should
* not set the #GESTimelineElement:in-point itself, but should check
* whether it can be changed to the new value and to otherwise prepare the
* element in response to what the new value will be. A return of %FALSE
* means that the property should not be set.
* @set_max_duration: Method called just before the
* #GESTimelineElement:max-duration is set. This method should
* not set the #GESTimelineElement:max-duration itself, but should check
* whether it can be changed to the new value and to otherwise prepare the
* element in response to what the new value will be. A return of %FALSE
* means that the property should not be set.
* @set_priority: Method called just before the
* #GESTimelineElement:priority is set.
* @ripple: Set this method to overwrite a redirect to
* ges_timeline_element_edit() in ges_timeline_element_ripple().
* @ripple_end: Set this method to overwrite a redirect to
* ges_timeline_element_edit() in ges_timeline_element_ripple_end().
* @roll: Set this method to overwrite a redirect to
* ges_timeline_element_edit() in ges_timeline_element_roll().
* @roll_end: Set this method to overwrite a redirect to
* ges_timeline_element_edit() in ges_timeline_element_roll_end().
* @trim: Set this method to overwrite a redirect to
* ges_timeline_element_edit() in ges_timeline_element_trim().
* @deep_copy: Prepare @copy for pasting as a copy of @self. At least by
* copying the children properties of @self into @copy.
* @paste: Paste @self, which is the @copy prepared by @deep_copy, into
* the timeline at the given @paste_position, with @ref_element as a
* reference, which is the @self that was passed to @deep_copy.
* @lookup-child: Method to find a child with the child property.
* @prop_name. The default vmethod will return the first child that
* matches. Overwrite this with a call to the parent vmethod if you wish
* to redirect property names. Or overwrite to change which child is
* returned if multiple children share the same child property name.
* @get_track_types: Return a the track types for the element.
* @list_children_properties: List the children properties that have been
* registered for the element. The default implementation is able to fetch
* all of these, so should be sufficient. If you overwrite this, you
* should still call the default implementation to get the full list, and
* then edit its content.
* @lookup_child: Find @child, and its registered child property @pspec,
* corresponding to the child property specified by @prop_name. The
* default implementation will search for the first child that matches. If
* you overwrite this, you will likely still want to call the default
* vmethod, which has access to the registered parameter specifications.
*
* The #GESTimelineElement base class. Subclasses should override at least
* @set_start @set_inpoint @set_duration @ripple @ripple_end @roll_start
* @roll_end and @trim.
*
* Vmethods in subclasses should apply all the operation they need to but
* the real method implementation is in charge of setting the proper field,
* and emitting the notify signal.
*/
struct _GESTimelineElementClass
{
GInitiallyUnownedClass parent_class;
/*< public > */
gboolean (*set_parent) (GESTimelineElement * self, GESTimelineElement *parent);
gboolean (*set_start) (GESTimelineElement * self, GstClockTime start);
gboolean (*set_inpoint) (GESTimelineElement * self, GstClockTime inpoint);
gboolean (*set_duration) (GESTimelineElement * self, GstClockTime duration);
gboolean (*set_max_duration) (GESTimelineElement * self, GstClockTime maxduration);
gboolean (*set_priority) (GESTimelineElement * self, guint32 priority); /* set_priority is now protected */
gboolean (*ripple) (GESTimelineElement *self, guint64 start);
gboolean (*ripple_end) (GESTimelineElement *self, guint64 end);
gboolean (*roll_start) (GESTimelineElement *self, guint64 start);
gboolean (*roll_end) (GESTimelineElement *self, guint64 end);
gboolean (*trim) (GESTimelineElement *self, guint64 start);
void (*deep_copy) (GESTimelineElement *self, GESTimelineElement *copy);
GESTimelineElement * (*paste) (GESTimelineElement *self,
GESTimelineElement *ref_element,
GstClockTime paste_position);
GParamSpec** (*list_children_properties) (GESTimelineElement * self, guint *n_properties);
gboolean (*lookup_child) (GESTimelineElement *self, const gchar *prop_name,
GObject **child, GParamSpec **pspec);
GESTrackType (*get_track_types) (GESTimelineElement * self);
/**
* GESTimelineElementClass::set_child_property:
*
* Method for setting the child property given by
* @pspec on @child to @value. Default implementation will use
* g_object_set_property().
*
* Since: 1.16
*/
void (*set_child_property) (GESTimelineElement * self,
GObject *child,
GParamSpec *pspec,
GValue *value);
/**
* GESTimelineElementClass::get_layer_priority:
*
* Get the #GESLayer:priority of the layer that this
* element is part of.
*
* Since: 1.16
*/
guint32 (*get_layer_priority) (GESTimelineElement *self);
/**
* GESTimelineElementClass::get_natural_framerate:
* @self: A #GESTimelineElement
* @framerate_n: The framerate numerator to retrieve
* @framerate_d: The framerate denominator to retrieve
*
* Returns: %TRUE if @self has a natural framerate @FALSE otherwise.
*
* Since: 1.18
*/
gboolean (*get_natural_framerate) (GESTimelineElement * self, gint *framerate_n, gint *framerate_d);
/**
* GESTimelineElementClass::set_child_property_full:
*
* Similar to @set_child_property, except setting can fail, with the @error
* being optionally set. Default implementation will call @set_child_property
* and return %TRUE.
*
* Since: 1.18
*/
gboolean (*set_child_property_full) (GESTimelineElement * self,
GObject *child,
GParamSpec *pspec,
const GValue *value,
GError ** error);
/* Padding for API extension */
gpointer _ges_reserved[GES_PADDING_LARGE - 6];
};
GES_API
GESTimelineElement * ges_timeline_element_get_toplevel_parent (GESTimelineElement *self);
GES_API
GESTimelineElement * ges_timeline_element_get_parent (GESTimelineElement * self);
GES_API
gboolean ges_timeline_element_set_parent (GESTimelineElement *self,
GESTimelineElement *parent);
GES_API
gboolean ges_timeline_element_set_timeline (GESTimelineElement *self,
GESTimeline *timeline);
GES_API
gboolean ges_timeline_element_set_start (GESTimelineElement *self,
GstClockTime start);
GES_API
gboolean ges_timeline_element_set_inpoint (GESTimelineElement *self,
GstClockTime inpoint);
GES_API
gboolean ges_timeline_element_set_duration (GESTimelineElement *self,
GstClockTime duration);
GES_API
gboolean ges_timeline_element_set_max_duration (GESTimelineElement *self,
GstClockTime maxduration);
GES_DEPRECATED
gboolean ges_timeline_element_set_priority (GESTimelineElement *self,
guint32 priority);
GES_API
GstClockTime ges_timeline_element_get_start (GESTimelineElement *self);
GES_API
GstClockTime ges_timeline_element_get_inpoint (GESTimelineElement *self);
GES_API
GstClockTime ges_timeline_element_get_duration (GESTimelineElement *self);
GES_API
GstClockTime ges_timeline_element_get_max_duration (GESTimelineElement *self);
GES_API
GESTimeline * ges_timeline_element_get_timeline (GESTimelineElement *self);
GES_API
guint32 ges_timeline_element_get_priority (GESTimelineElement *self);
GES_API
gboolean ges_timeline_element_ripple (GESTimelineElement *self,
GstClockTime start);
GES_API
gboolean ges_timeline_element_ripple_end (GESTimelineElement *self,
GstClockTime end);
GES_API
gboolean ges_timeline_element_roll_start (GESTimelineElement *self,
GstClockTime start);
GES_API
gboolean ges_timeline_element_roll_end (GESTimelineElement *self,
GstClockTime end);
GES_API
gboolean ges_timeline_element_trim (GESTimelineElement *self,
GstClockTime start);
GES_API
GESTimelineElement * ges_timeline_element_copy (GESTimelineElement *self,
gboolean deep);
GES_API
gchar * ges_timeline_element_get_name (GESTimelineElement *self);
GES_API
gboolean ges_timeline_element_set_name (GESTimelineElement *self,
const gchar *name);
GES_API
GParamSpec ** ges_timeline_element_list_children_properties (GESTimelineElement *self,
guint *n_properties);
GES_API
gboolean ges_timeline_element_lookup_child (GESTimelineElement *self,
const gchar *prop_name,
GObject **child,
GParamSpec **pspec);
GES_API
void ges_timeline_element_get_child_property_by_pspec (GESTimelineElement * self,
GParamSpec * pspec, GValue * value);
GES_API
void ges_timeline_element_get_child_property_valist (GESTimelineElement * self,
const gchar * first_property_name,
va_list var_args);
GES_API
void ges_timeline_element_get_child_properties (GESTimelineElement *self,
const gchar * first_property_name, ...) G_GNUC_NULL_TERMINATED;
GES_API
void ges_timeline_element_set_child_property_valist (GESTimelineElement * self,
const gchar * first_property_name,
va_list var_args);
GES_API
void ges_timeline_element_set_child_property_by_pspec (GESTimelineElement * self,
GParamSpec * pspec,
const GValue * value);
GES_API
void ges_timeline_element_set_child_properties (GESTimelineElement * self,
const gchar * first_property_name,
...) G_GNUC_NULL_TERMINATED;
GES_API
gboolean ges_timeline_element_set_child_property (GESTimelineElement *self,
const gchar *property_name,
const GValue * value);
GES_API
gboolean ges_timeline_element_set_child_property_full (GESTimelineElement *self,
const gchar *property_name,
const GValue * value,
GError ** error);
GES_API
gboolean ges_timeline_element_get_child_property (GESTimelineElement *self,
const gchar *property_name,
GValue * value);
GES_API
gboolean ges_timeline_element_add_child_property (GESTimelineElement * self,
GParamSpec *pspec,
GObject *child);
GES_API
gboolean ges_timeline_element_remove_child_property (GESTimelineElement * self,
GParamSpec *pspec);
GES_API
GESTimelineElement * ges_timeline_element_paste (GESTimelineElement * self,
GstClockTime paste_position);
GES_API
GESTrackType ges_timeline_element_get_track_types (GESTimelineElement * self);
GES_API
gboolean ges_timeline_element_get_natural_framerate (GESTimelineElement *self,
gint *framerate_n,
gint *framerate_d);
GES_API
guint32 ges_timeline_element_get_layer_priority (GESTimelineElement * self);
GES_API
gboolean ges_timeline_element_edit (GESTimelineElement * self,
GList * layers,
gint64 new_layer_priority,
GESEditMode mode,
GESEdge edge,
guint64 position);
GES_API
gboolean ges_timeline_element_edit_full (GESTimelineElement * self,
gint64 new_layer_priority,
GESEditMode mode,
GESEdge edge,
guint64 position,
GError ** error);
G_END_DECLS