mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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fe49c80c8d
Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-editing-services/-/merge_requests/191>
457 lines
22 KiB
C
457 lines
22 KiB
C
/*
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* gst-editing-services
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* Copyright (C) <2013> Thibault Saunier <thibault.saunier@collabora.com>
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* <2013> Collabora Ltd.
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*
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* gst-editing-services is free software: you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* gst-editing-services is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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* See the GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program. If not, see <http://www.gnu.org/licenses/>.
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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-enums.h"
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#include "ges-types.h"
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G_BEGIN_DECLS
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#define GES_TYPE_TIMELINE_ELEMENT (ges_timeline_element_get_type ())
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GES_DECLARE_TYPE(TimelineElement, timeline_element, TIMELINE_ELEMENT);
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/**
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* GES_TIMELINE_ELEMENT_START:
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* @obj: A #GESTimelineElement
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*
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* The #GESTimelineElement:start of @obj.
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*/
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#define GES_TIMELINE_ELEMENT_START(obj) (((GESTimelineElement*)obj)->start)
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/**
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* GES_TIMELINE_ELEMENT_END:
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* @obj: A #GESTimelineElement
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*
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* The end position of @obj: #GESTimelineElement:start +
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* #GESTimelineElement:duration.
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*/
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#define GES_TIMELINE_ELEMENT_END(obj) ((((GESTimelineElement*)obj)->start) + (((GESTimelineElement*)obj)->duration))
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/**
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* GES_TIMELINE_ELEMENT_INPOINT:
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* @obj: A #GESTimelineElement
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*
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* The #GESTimelineElement:in-point of @obj.
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*/
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#define GES_TIMELINE_ELEMENT_INPOINT(obj) (((GESTimelineElement*)obj)->inpoint)
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/**
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* GES_TIMELINE_ELEMENT_DURATION:
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* @obj: A #GESTimelineElement
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*
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* The #GESTimelineElement:duration of @obj.
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*/
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#define GES_TIMELINE_ELEMENT_DURATION(obj) (((GESTimelineElement*)obj)->duration)
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/**
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* GES_TIMELINE_ELEMENT_MAX_DURATION:
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* @obj: A #GESTimelineElement
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*
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* The #GESTimelineElement:max-duration of @obj.
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*/
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#define GES_TIMELINE_ELEMENT_MAX_DURATION(obj) (((GESTimelineElement*)obj)->maxduration)
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/**
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* GES_TIMELINE_ELEMENT_PRIORITY:
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* @obj: A #GESTimelineElement
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*
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* The #GESTimelineElement:priority of @obj.
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*/
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#define GES_TIMELINE_ELEMENT_PRIORITY(obj) (((GESTimelineElement*)obj)->priority)
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/**
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* GES_TIMELINE_ELEMENT_NO_LAYER_PRIORITY:
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*
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* Layer priority when a timeline element is not in any layer.
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*/
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#define GES_TIMELINE_ELEMENT_NO_LAYER_PRIORITY ((guint32) -1)
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/**
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* GES_TIMELINE_ELEMENT_LAYER_PRIORITY:
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* @obj: The object to retrieve the layer priority from
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*
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* See #ges_timeline_element_get_layer_priority.
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*/
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#define GES_TIMELINE_ELEMENT_LAYER_PRIORITY(obj) (ges_timeline_element_get_layer_priority(((GESTimelineElement*)obj)))
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/**
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* GES_TIMELINE_ELEMENT_PARENT:
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* @obj: A #GESTimelineElement
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*
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* The #GESTimelineElement:parent of @obj.
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*/
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#define GES_TIMELINE_ELEMENT_PARENT(obj) (((GESTimelineElement*)obj)->parent)
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/**
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* GES_TIMELINE_ELEMENT_TIMELINE:
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* @obj: A #GESTimelineElement
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*
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* The #GESTimelineElement:timeline of @obj.
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*/
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#define GES_TIMELINE_ELEMENT_TIMELINE(obj) (((GESTimelineElement*)obj)->timeline)
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/**
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* GES_TIMELINE_ELEMENT_NAME:
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* @obj: A #GESTimelineElement
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*
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* The #GESTimelineElement:name of @obj.
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*/
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#define GES_TIMELINE_ELEMENT_NAME(obj) (((GESTimelineElement*)obj)->name)
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/**
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* GESTimelineElement:
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* @parent: The #GESTimelineElement:parent of the element
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* @asset: The #GESAsset from which the object has been extracted
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* @start: The #GESTimelineElement:start of the element
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* @inpoint: The #GESTimelineElement:in-point of the element
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* @duration: The #GESTimelineElement:duration of the element
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* @maxduration: The #GESTimelineElement:max-duration of the element
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* @priority: The #GESTimelineElement:priority of the element
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* @name: The #GESTimelineElement:name of the element
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* @timeline: The #GESTimelineElement:timeline of the element
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*
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* All members can be read freely, but should usually not be written to.
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* Subclasses may write to them, but should make sure to properly call
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* g_object_notify().
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*/
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struct _GESTimelineElement
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{
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GInitiallyUnowned parent_instance;
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/*< public > */
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/*< read only >*/
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GESTimelineElement *parent;
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GESAsset *asset;
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GstClockTime start;
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GstClockTime inpoint;
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GstClockTime duration;
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GstClockTime maxduration;
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guint32 priority;
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GESTimeline *timeline;
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gchar *name;
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/*< private >*/
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GESTimelineElementPrivate *priv;
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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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* GESTimelineElementClass:
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* @set_parent: Method called just before the #GESTimelineElement:parent
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* is set.
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* @set_start: Method called just before the #GESTimelineElement:start is
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* set. This method should check whether the #GESTimelineElement:start can
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* be changed to the new value and to otherwise prepare the element in
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* response to what the new value will be. A return of %FALSE means that
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* the property should not be set. A return of %TRUE means that the
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* property should be set to the value given to the setter and a notify
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* emitted. A return of -1 means that the property should not be set but
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* the setter should still return %TRUE (normally because the method
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* already handled setting the value, potentially to a snapped value, and
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* emitted the notify signal).
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* #GESTimelineElement:duration is set. This method should check
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* whether the #GESTimelineElement:duration can be changed to the new
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* value and to otherwise prepare the element in response to what the new
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* value will be. A return of %FALSE means that the property should not be
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* set. A return of %TRUE means that the property should be set to the
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* value given to the setter and a notify emitted. A return of -1 means
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* that the property should not be set but the setter should still return
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* %TRUE (normally because the method already handled setting the value,
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* potentially to a snapped value, and emitted the notify signal).
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* @set_inpoint: Method called just before the
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* #GESTimelineElement:in-point is set to a new value. This method should
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* not set the #GESTimelineElement:in-point itself, but should check
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* whether it can be changed to the new value and to otherwise prepare the
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* element in response to what the new value will be. A return of %FALSE
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* means that the property should not be set.
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* @set_max_duration: Method called just before the
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* #GESTimelineElement:max-duration is set. This method should
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* not set the #GESTimelineElement:max-duration itself, but should check
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* whether it can be changed to the new value and to otherwise prepare the
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* element in response to what the new value will be. A return of %FALSE
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* means that the property should not be set.
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* @set_priority: Method called just before the
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* #GESTimelineElement:priority is set.
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* @ripple: Set this method to overwrite a redirect to
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* ges_timeline_element_edit() in ges_timeline_element_ripple().
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* @ripple_end: Set this method to overwrite a redirect to
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* ges_timeline_element_edit() in ges_timeline_element_ripple_end().
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* @roll: Set this method to overwrite a redirect to
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* ges_timeline_element_edit() in ges_timeline_element_roll().
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* @roll_end: Set this method to overwrite a redirect to
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* ges_timeline_element_edit() in ges_timeline_element_roll_end().
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* @trim: Set this method to overwrite a redirect to
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* ges_timeline_element_edit() in ges_timeline_element_trim().
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* @deep_copy: Prepare @copy for pasting as a copy of @self. At least by
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* copying the children properties of @self into @copy.
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* @paste: Paste @self, which is the @copy prepared by @deep_copy, into
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* the timeline at the given @paste_position, with @ref_element as a
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* reference, which is the @self that was passed to @deep_copy.
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* @lookup-child: Method to find a child with the child property.
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* @prop_name. The default vmethod will return the first child that
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* matches. Overwrite this with a call to the parent vmethod if you wish
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* to redirect property names. Or overwrite to change which child is
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* returned if multiple children share the same child property name.
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* @get_track_types: Return a the track types for the element.
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* @list_children_properties: List the children properties that have been
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* registered for the element. The default implementation is able to fetch
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* all of these, so should be sufficient. If you overwrite this, you
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* should still call the default implementation to get the full list, and
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* then edit its content.
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* @lookup_child: Find @child, and its registered child property @pspec,
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* corresponding to the child property specified by @prop_name. The
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* default implementation will search for the first child that matches. If
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* you overwrite this, you will likely still want to call the default
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* vmethod, which has access to the registered parameter specifications.
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*
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* The #GESTimelineElement base class. Subclasses should override at least
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* @set_start @set_inpoint @set_duration @ripple @ripple_end @roll_start
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* @roll_end and @trim.
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*
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* Vmethods in subclasses should apply all the operation they need to but
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* the real method implementation is in charge of setting the proper field,
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* and emitting the notify signal.
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*/
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struct _GESTimelineElementClass
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{
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GInitiallyUnownedClass parent_class;
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/*< public > */
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gboolean (*set_parent) (GESTimelineElement * self, GESTimelineElement *parent);
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gboolean (*set_start) (GESTimelineElement * self, GstClockTime start);
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gboolean (*set_inpoint) (GESTimelineElement * self, GstClockTime inpoint);
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gboolean (*set_duration) (GESTimelineElement * self, GstClockTime duration);
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gboolean (*set_max_duration) (GESTimelineElement * self, GstClockTime maxduration);
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gboolean (*set_priority) (GESTimelineElement * self, guint32 priority); /* set_priority is now protected */
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gboolean (*ripple) (GESTimelineElement *self, guint64 start);
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gboolean (*ripple_end) (GESTimelineElement *self, guint64 end);
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gboolean (*roll_start) (GESTimelineElement *self, guint64 start);
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gboolean (*roll_end) (GESTimelineElement *self, guint64 end);
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gboolean (*trim) (GESTimelineElement *self, guint64 start);
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void (*deep_copy) (GESTimelineElement *self, GESTimelineElement *copy);
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GESTimelineElement * (*paste) (GESTimelineElement *self,
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GESTimelineElement *ref_element,
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GstClockTime paste_position);
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GParamSpec** (*list_children_properties) (GESTimelineElement * self, guint *n_properties);
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gboolean (*lookup_child) (GESTimelineElement *self, const gchar *prop_name,
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GObject **child, GParamSpec **pspec);
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GESTrackType (*get_track_types) (GESTimelineElement * self);
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/**
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* GESTimelineElementClass::set_child_property:
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*
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* Method for setting the child property given by
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* @pspec on @child to @value. Default implementation will use
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* g_object_set_property().
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*
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* Since: 1.16
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*/
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void (*set_child_property) (GESTimelineElement * self,
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GObject *child,
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GParamSpec *pspec,
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GValue *value);
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/**
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* GESTimelineElementClass::get_layer_priority:
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*
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* Get the #GESLayer:priority of the layer that this
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* element is part of.
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*
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* Since: 1.16
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*/
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guint32 (*get_layer_priority) (GESTimelineElement *self);
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/**
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* GESTimelineElementClass::get_natural_framerate:
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* @self: A #GESTimelineElement
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* @framerate_n: The framerate numerator to retrieve
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* @framerate_d: The framerate denominator to retrieve
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*
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* Returns: %TRUE if @self has a natural framerate @FALSE otherwise.
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*
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* Since: 1.18
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*/
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gboolean (*get_natural_framerate) (GESTimelineElement * self, gint *framerate_n, gint *framerate_d);
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/**
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* GESTimelineElementClass::set_child_property_full:
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*
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* Similar to @set_child_property, except setting can fail, with the @error
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* being optionally set. Default implementation will call @set_child_property
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* and return %TRUE.
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*
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* Since: 1.18
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*/
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gboolean (*set_child_property_full) (GESTimelineElement * self,
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GObject *child,
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GParamSpec *pspec,
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const GValue *value,
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GError ** error);
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/* Padding for API extension */
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gpointer _ges_reserved[GES_PADDING_LARGE - 6];
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};
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GES_API
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GESTimelineElement * ges_timeline_element_get_toplevel_parent (GESTimelineElement *self);
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GES_API
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GESTimelineElement * ges_timeline_element_get_parent (GESTimelineElement * self);
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GES_API
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gboolean ges_timeline_element_set_parent (GESTimelineElement *self,
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GESTimelineElement *parent);
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GES_API
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gboolean ges_timeline_element_set_timeline (GESTimelineElement *self,
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GESTimeline *timeline);
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GES_API
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gboolean ges_timeline_element_set_start (GESTimelineElement *self,
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GstClockTime start);
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GES_API
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gboolean ges_timeline_element_set_inpoint (GESTimelineElement *self,
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GstClockTime inpoint);
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GES_API
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gboolean ges_timeline_element_set_duration (GESTimelineElement *self,
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GstClockTime duration);
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GES_API
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gboolean ges_timeline_element_set_max_duration (GESTimelineElement *self,
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GstClockTime maxduration);
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GES_DEPRECATED
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gboolean ges_timeline_element_set_priority (GESTimelineElement *self,
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guint32 priority);
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GES_API
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GstClockTime ges_timeline_element_get_start (GESTimelineElement *self);
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GES_API
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GstClockTime ges_timeline_element_get_inpoint (GESTimelineElement *self);
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GES_API
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GstClockTime ges_timeline_element_get_duration (GESTimelineElement *self);
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GES_API
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GstClockTime ges_timeline_element_get_max_duration (GESTimelineElement *self);
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GES_API
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GESTimeline * ges_timeline_element_get_timeline (GESTimelineElement *self);
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GES_API
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guint32 ges_timeline_element_get_priority (GESTimelineElement *self);
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GES_API
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gboolean ges_timeline_element_ripple (GESTimelineElement *self,
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GstClockTime start);
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GES_API
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gboolean ges_timeline_element_ripple_end (GESTimelineElement *self,
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GstClockTime end);
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GES_API
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gboolean ges_timeline_element_roll_start (GESTimelineElement *self,
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GstClockTime start);
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GES_API
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gboolean ges_timeline_element_roll_end (GESTimelineElement *self,
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GstClockTime end);
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GES_API
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gboolean ges_timeline_element_trim (GESTimelineElement *self,
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GstClockTime start);
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GES_API
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GESTimelineElement * ges_timeline_element_copy (GESTimelineElement *self,
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gboolean deep);
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GES_API
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gchar * ges_timeline_element_get_name (GESTimelineElement *self);
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GES_API
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gboolean ges_timeline_element_set_name (GESTimelineElement *self,
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const gchar *name);
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GES_API
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GParamSpec ** ges_timeline_element_list_children_properties (GESTimelineElement *self,
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guint *n_properties);
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GES_API
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gboolean ges_timeline_element_lookup_child (GESTimelineElement *self,
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const gchar *prop_name,
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GObject **child,
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GParamSpec **pspec);
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GES_API
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void ges_timeline_element_get_child_property_by_pspec (GESTimelineElement * self,
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GParamSpec * pspec, GValue * value);
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GES_API
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void ges_timeline_element_get_child_property_valist (GESTimelineElement * self,
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const gchar * first_property_name,
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va_list var_args);
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GES_API
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void ges_timeline_element_get_child_properties (GESTimelineElement *self,
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const gchar * first_property_name, ...) G_GNUC_NULL_TERMINATED;
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GES_API
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void ges_timeline_element_set_child_property_valist (GESTimelineElement * self,
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const gchar * first_property_name,
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va_list var_args);
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GES_API
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void ges_timeline_element_set_child_property_by_pspec (GESTimelineElement * self,
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GParamSpec * pspec,
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const GValue * value);
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GES_API
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void ges_timeline_element_set_child_properties (GESTimelineElement * self,
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const gchar * first_property_name,
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...) G_GNUC_NULL_TERMINATED;
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GES_API
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gboolean ges_timeline_element_set_child_property (GESTimelineElement *self,
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const gchar *property_name,
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const GValue * value);
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GES_API
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gboolean ges_timeline_element_set_child_property_full (GESTimelineElement *self,
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const gchar *property_name,
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const GValue * value,
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GError ** error);
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GES_API
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gboolean ges_timeline_element_get_child_property (GESTimelineElement *self,
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const gchar *property_name,
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GValue * value);
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GES_API
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gboolean ges_timeline_element_add_child_property (GESTimelineElement * self,
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GParamSpec *pspec,
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GObject *child);
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GES_API
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gboolean ges_timeline_element_remove_child_property (GESTimelineElement * self,
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GParamSpec *pspec);
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GES_API
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GESTimelineElement * ges_timeline_element_paste (GESTimelineElement * self,
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GstClockTime paste_position);
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GES_API
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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
|