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https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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1030 lines
30 KiB
C
1030 lines
30 KiB
C
/* GStreamer 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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* 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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/**
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* SECTION:gescontainer
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* @title: GESContainer
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* @short_description: Base Class for objects responsible for controlling other
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* GESTimelineElement-s
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include "ges-container.h"
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#include "ges.h"
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#include "ges-internal.h"
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#include <string.h>
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GST_DEBUG_CATEGORY_STATIC (ges_container_debug);
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#undef GST_CAT_DEFAULT
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#define GST_CAT_DEFAULT ges_container_debug
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/* Mapping of relationship between a Container and the TimelineElements
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* it controls
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*
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* NOTE : Does it make sense to make it public in the future ?
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*/
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typedef struct
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{
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GESTimelineElement *child;
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GstClockTime start_offset;
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GstClockTime duration_offset;
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GstClockTime inpoint_offset;
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gint32 priority_offset;
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guint start_notifyid;
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guint duration_notifyid;
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guint inpoint_notifyid;
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} ChildMapping;
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enum
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{
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CHILD_ADDED_SIGNAL,
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CHILD_REMOVED_SIGNAL,
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LAST_SIGNAL
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};
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static guint ges_container_signals[LAST_SIGNAL] = { 0 };
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struct _GESContainerPrivate
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{
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/*< public > */
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GESLayer *layer;
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/*< private > */
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/* Set to TRUE when the container is doing updates of track object
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* properties so we don't end up in infinite property update loops
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*/
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GHashTable *mappings;
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/* List of GESTimelineElement being in the "child-added" signal
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* emission stage */
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GList *adding_children;
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GList *copied_children;
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};
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enum
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{
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PROP_0,
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PROP_HEIGHT,
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PROP_LAST
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};
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static GParamSpec *properties[PROP_LAST];
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G_DEFINE_ABSTRACT_TYPE_WITH_PRIVATE (GESContainer, ges_container,
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GES_TYPE_TIMELINE_ELEMENT);
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/************************
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* Private methods *
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************************/
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static void
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_free_mapping (ChildMapping * mapping)
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{
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GESTimelineElement *child = mapping->child;
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/* Disconnect all notify listeners */
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if (mapping->start_notifyid)
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g_signal_handler_disconnect (child, mapping->start_notifyid);
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if (mapping->duration_notifyid)
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g_signal_handler_disconnect (child, mapping->duration_notifyid);
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if (mapping->inpoint_notifyid)
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g_signal_handler_disconnect (child, mapping->inpoint_notifyid);
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ges_timeline_element_set_parent (child, NULL);
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g_slice_free (ChildMapping, mapping);
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}
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static gint
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compare_grouping_prio (GType * a, GType * b)
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{
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gint ret = 0;
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GObjectClass *aclass = g_type_class_ref (*a);
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GObjectClass *bclass = g_type_class_ref (*b);
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/* We want higher prios to be first */
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if (GES_CONTAINER_CLASS (aclass)->grouping_priority <
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GES_CONTAINER_CLASS (bclass)->grouping_priority)
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ret = 1;
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else if (GES_CONTAINER_CLASS (aclass)->grouping_priority >
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GES_CONTAINER_CLASS (bclass)->grouping_priority)
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ret = -1;
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g_type_class_unref (aclass);
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g_type_class_unref (bclass);
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return ret;
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}
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static void
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_resync_start_offsets (GESTimelineElement * child,
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ChildMapping * map, GESContainer * container)
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{
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map->start_offset = _START (container) - _START (child);
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}
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/*****************************************************
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* *
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* GESTimelineElement virtual methods implementation *
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* *
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*****************************************************/
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static gboolean
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_set_start (GESTimelineElement * element, GstClockTime start)
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{
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GList *tmp;
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ChildMapping *map;
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GESContainer *container = GES_CONTAINER (element);
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GESContainerPrivate *priv = container->priv;
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GST_DEBUG_OBJECT (element, "Updating children offsets, (initiated_move: %"
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GST_PTR_FORMAT ")", container->initiated_move);
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for (tmp = container->children; tmp; tmp = g_list_next (tmp)) {
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GESTimelineElement *child = (GESTimelineElement *) tmp->data;
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map = g_hash_table_lookup (priv->mappings, child);
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map->start_offset = start - _START (child);
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}
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container->children_control_mode = GES_CHILDREN_UPDATE;
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return TRUE;
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}
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static gboolean
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_set_inpoint (GESTimelineElement * element, GstClockTime inpoint)
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{
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GList *tmp;
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GESContainer *container = GES_CONTAINER (element);
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for (tmp = container->children; tmp; tmp = g_list_next (tmp)) {
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GESTimelineElement *child = (GESTimelineElement *) tmp->data;
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ChildMapping *map = g_hash_table_lookup (container->priv->mappings, child);
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map->inpoint_offset = inpoint - _INPOINT (child);
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}
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return TRUE;
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}
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static gboolean
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_set_duration (GESTimelineElement * element, GstClockTime duration)
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{
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GList *tmp;
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GESContainer *container = GES_CONTAINER (element);
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GESContainerPrivate *priv = container->priv;
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for (tmp = container->children; tmp; tmp = g_list_next (tmp)) {
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GESTimelineElement *child = (GESTimelineElement *) tmp->data;
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ChildMapping *map = g_hash_table_lookup (priv->mappings, child);
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map->duration_offset = duration - _DURATION (child);
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}
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return TRUE;
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}
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static void
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_ges_container_add_child_properties (GESContainer * container,
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GESTimelineElement * child)
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{
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guint n_props, i;
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GParamSpec **child_props =
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ges_timeline_element_list_children_properties (child,
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&n_props);
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for (i = 0; i < n_props; i++) {
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GObject *prop_child;
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gchar *prop_name = g_strdup_printf ("%s::%s",
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g_type_name (child_props[i]->owner_type),
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child_props[i]->name);
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if (ges_timeline_element_lookup_child (child, prop_name, &prop_child, NULL)) {
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ges_timeline_element_add_child_property (GES_TIMELINE_ELEMENT (container),
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child_props[i], prop_child);
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gst_object_unref (prop_child);
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}
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g_free (prop_name);
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g_param_spec_unref (child_props[i]);
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}
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g_free (child_props);
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}
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static void
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_ges_container_remove_child_properties (GESContainer * container,
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GESTimelineElement * child)
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{
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guint n_props, i;
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GParamSpec **child_props =
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ges_timeline_element_list_children_properties (child,
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&n_props);
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for (i = 0; i < n_props; i++) {
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GObject *prop_child;
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gchar *prop_name = g_strdup_printf ("%s::%s",
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g_type_name (child_props[i]->owner_type),
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child_props[i]->name);
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if (ges_timeline_element_lookup_child (child, prop_name, &prop_child, NULL)) {
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ges_timeline_element_remove_child_property (GES_TIMELINE_ELEMENT
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(container), child_props[i]);
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gst_object_unref (prop_child);
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}
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g_free (prop_name);
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g_param_spec_unref (child_props[i]);
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}
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g_free (child_props);
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}
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static GParamSpec **
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_list_children_properties (GESTimelineElement * self, guint * n_properties)
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{
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GList *tmp;
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for (tmp = GES_CONTAINER_CHILDREN (self); tmp; tmp = tmp->next)
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_ges_container_add_child_properties (GES_CONTAINER (self), tmp->data);
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return
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GES_TIMELINE_ELEMENT_CLASS
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(ges_container_parent_class)->list_children_properties (self,
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n_properties);
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}
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static gboolean
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_lookup_child (GESTimelineElement * self, const gchar * prop_name,
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GObject ** child, GParamSpec ** pspec)
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{
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GList *tmp;
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/* FIXME Implement a syntax to precisely get properties by path */
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for (tmp = GES_CONTAINER_CHILDREN (self); tmp; tmp = tmp->next) {
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if (ges_timeline_element_lookup_child (tmp->data, prop_name, child, pspec))
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return TRUE;
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}
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return FALSE;
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}
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static GESTrackType
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_get_track_types (GESTimelineElement * object)
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{
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GESTrackType types = GES_TRACK_TYPE_UNKNOWN;
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GList *tmp, *children = ges_container_get_children (GES_CONTAINER (object),
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TRUE);
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for (tmp = children; tmp; tmp = tmp->next) {
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if (GES_IS_TRACK_ELEMENT (tmp->data)) {
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types |= ges_timeline_element_get_track_types (tmp->data);
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}
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}
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g_list_free_full (children, gst_object_unref);
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return types ^ GES_TRACK_TYPE_UNKNOWN;
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}
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static void
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_deep_copy (GESTimelineElement * element, GESTimelineElement * copy)
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{
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GList *tmp;
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GESContainer *self = GES_CONTAINER (element), *ccopy = GES_CONTAINER (copy);
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for (tmp = GES_CONTAINER_CHILDREN (element); tmp; tmp = tmp->next) {
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ChildMapping *map;
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map =
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g_slice_dup (ChildMapping, g_hash_table_lookup (self->priv->mappings,
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tmp->data));
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map->child = ges_timeline_element_copy (tmp->data, TRUE);
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map->start_notifyid = 0;
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map->inpoint_notifyid = 0;
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map->duration_notifyid = 0;
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ccopy->priv->copied_children = g_list_prepend (ccopy->priv->copied_children,
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map);
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}
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}
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static GESTimelineElement *
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_paste (GESTimelineElement * element, GESTimelineElement * ref,
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GstClockTime paste_position)
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{
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GList *tmp;
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ChildMapping *map;
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GESContainer *ncontainer =
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GES_CONTAINER (ges_timeline_element_copy (element, FALSE));
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GESContainer *self = GES_CONTAINER (element);
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for (tmp = self->priv->copied_children; tmp; tmp = tmp->next) {
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GESTimelineElement *nchild;
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map = tmp->data;
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nchild =
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ges_timeline_element_paste (map->child,
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paste_position - map->start_offset);
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if (!nchild) {
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while (ncontainer->children)
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ges_container_remove (ncontainer, ncontainer->children->data);
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g_object_unref (ncontainer);
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return NULL;
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}
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ges_timeline_element_set_timeline (GES_TIMELINE_ELEMENT (ncontainer),
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GES_TIMELINE_ELEMENT_TIMELINE (ref));
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ges_container_add (ncontainer, nchild);
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}
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return GES_TIMELINE_ELEMENT (ncontainer);
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}
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/******************************************
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* *
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* GObject virtual methods implementation *
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* *
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******************************************/
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static void
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_dispose (GObject * object)
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{
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GList *tmp;
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GESContainer *self = GES_CONTAINER (object);
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GList *children;
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_ges_container_sort_children (self);
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children = ges_container_get_children (self, FALSE);
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for (tmp = g_list_last (children); tmp; tmp = tmp->prev)
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ges_container_remove (self, tmp->data);
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g_list_free_full (children, gst_object_unref);
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self->children = NULL;
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G_OBJECT_CLASS (ges_container_parent_class)->dispose (object);
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}
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static void
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_finalize (GObject * object)
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{
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GESContainer *self = GES_CONTAINER (object);
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g_list_free_full (self->priv->copied_children,
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(GDestroyNotify) _free_mapping);
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if (self->priv->mappings)
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g_hash_table_destroy (self->priv->mappings);
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G_OBJECT_CLASS (ges_container_parent_class)->finalize (object);
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}
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static void
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_get_property (GObject * container, guint property_id,
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GValue * value, GParamSpec * pspec)
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{
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GESContainer *tobj = GES_CONTAINER (container);
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switch (property_id) {
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case PROP_HEIGHT:
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g_value_set_uint (value, tobj->height);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (container, property_id, pspec);
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}
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}
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static void
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_set_property (GObject * container, guint property_id,
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const GValue * value, GParamSpec * pspec)
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{
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switch (property_id) {
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (container, property_id, pspec);
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}
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}
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static void
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ges_container_class_init (GESContainerClass * klass)
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{
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GObjectClass *object_class = G_OBJECT_CLASS (klass);
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GESTimelineElementClass *element_class = GES_TIMELINE_ELEMENT_CLASS (klass);
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GST_DEBUG_CATEGORY_INIT (ges_container_debug, "gescontainer",
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GST_DEBUG_FG_YELLOW, "ges container");
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object_class->get_property = _get_property;
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object_class->set_property = _set_property;
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object_class->dispose = _dispose;
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object_class->finalize = _finalize;
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/**
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* GESContainer:height:
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*
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* The span of priorities which this container occupies.
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*/
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properties[PROP_HEIGHT] = g_param_spec_uint ("height", "Height",
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"The span of priorities this container occupies", 0, G_MAXUINT, 1,
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G_PARAM_READABLE);
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g_object_class_install_property (object_class, PROP_HEIGHT,
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properties[PROP_HEIGHT]);
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/**
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* GESContainer::child-added:
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* @container: the #GESContainer
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* @element: the #GESTimelineElement that was added.
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*
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* Will be emitted after a child was added to @container.
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* Usually you should connect with #g_signal_connect_after
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* as in the first emission stage, the signal emission might
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* get stopped internally.
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*/
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ges_container_signals[CHILD_ADDED_SIGNAL] =
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g_signal_new ("child-added", G_TYPE_FROM_CLASS (klass),
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G_SIGNAL_RUN_FIRST, G_STRUCT_OFFSET (GESContainerClass, child_added),
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NULL, NULL, g_cclosure_marshal_generic,
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G_TYPE_NONE, 1, GES_TYPE_TIMELINE_ELEMENT);
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/**
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* GESContainer::child-removed:
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* @container: the #GESContainer
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* @element: the #GESTimelineElement that was removed.
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*
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* Will be emitted after a child was removed from @container.
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*/
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ges_container_signals[CHILD_REMOVED_SIGNAL] =
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g_signal_new ("child-removed", G_TYPE_FROM_CLASS (klass),
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G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (GESContainerClass, child_removed),
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NULL, NULL, g_cclosure_marshal_generic, G_TYPE_NONE, 1,
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GES_TYPE_TIMELINE_ELEMENT);
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element_class->set_start = _set_start;
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element_class->set_duration = _set_duration;
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element_class->set_inpoint = _set_inpoint;
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element_class->list_children_properties = _list_children_properties;
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element_class->lookup_child = _lookup_child;
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element_class->get_track_types = _get_track_types;
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element_class->paste = _paste;
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element_class->deep_copy = _deep_copy;
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/* No default implementations */
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klass->remove_child = NULL;
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klass->add_child = NULL;
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klass->ungroup = NULL;
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klass->group = NULL;
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klass->grouping_priority = 0;
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klass->edit = NULL;
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}
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|
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static void
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ges_container_init (GESContainer * self)
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{
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self->priv = ges_container_get_instance_private (self);
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|
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/* FIXME, check why default was GST_SECOND? (before the existend of
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* ges-container)
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*
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* _DURATION (self) = GST_SECOND; */
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self->height = 1; /* FIXME Why 1 and not 0? */
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self->children = NULL;
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self->priv->mappings = g_hash_table_new_full (g_direct_hash, g_direct_equal,
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NULL, (GDestroyNotify) _free_mapping);
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}
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|
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/**********************************************
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* *
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* Property notifications from Children *
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* *
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**********************************************/
|
|
static void
|
|
_child_start_changed_cb (GESTimelineElement * child,
|
|
GParamSpec * arg G_GNUC_UNUSED, GESContainer * container)
|
|
{
|
|
ChildMapping *map;
|
|
GstClockTime start;
|
|
|
|
GESContainerPrivate *priv = container->priv;
|
|
GESTimelineElement *element = GES_TIMELINE_ELEMENT (container);
|
|
GESChildrenControlMode pmode = container->children_control_mode;
|
|
|
|
map = g_hash_table_lookup (priv->mappings, child);
|
|
g_assert (map);
|
|
|
|
if (ELEMENT_FLAG_IS_SET (child, GES_TIMELINE_ELEMENT_SET_SIMPLE))
|
|
container->children_control_mode = GES_CHILDREN_UPDATE_ALL_VALUES;
|
|
|
|
switch (container->children_control_mode) {
|
|
case GES_CHILDREN_IGNORE_NOTIFIES:
|
|
return;
|
|
case GES_CHILDREN_UPDATE_ALL_VALUES:
|
|
_ges_container_sort_children (container);
|
|
start = container->children ?
|
|
_START (container->children->data) : _START (container);
|
|
|
|
if (start != _START (container)) {
|
|
_DURATION (container) = _END (container) - start;
|
|
_START (container) = start;
|
|
|
|
GST_DEBUG_OBJECT (container, "Child move made us move %" GES_FORMAT,
|
|
GES_ARGS (container));
|
|
|
|
g_object_notify (G_OBJECT (container), "start");
|
|
}
|
|
|
|
/* Falltrough! */
|
|
case GES_CHILDREN_UPDATE_OFFSETS:
|
|
map->start_offset = _START (container) - _START (child);
|
|
break;
|
|
|
|
case GES_CHILDREN_UPDATE:
|
|
/* We update all the children calling our set_start method */
|
|
container->initiated_move = child;
|
|
_set_start0 (element, _START (child) + map->start_offset);
|
|
container->initiated_move = NULL;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
if (ELEMENT_FLAG_IS_SET (child, GES_TIMELINE_ELEMENT_SET_SIMPLE))
|
|
container->children_control_mode = pmode;
|
|
}
|
|
|
|
static void
|
|
_child_inpoint_changed_cb (GESTimelineElement * child,
|
|
GParamSpec * arg G_GNUC_UNUSED, GESContainer * container)
|
|
{
|
|
ChildMapping *map;
|
|
|
|
GESContainerPrivate *priv = container->priv;
|
|
GESTimelineElement *element = GES_TIMELINE_ELEMENT (container);
|
|
|
|
if (container->children_control_mode == GES_CHILDREN_IGNORE_NOTIFIES)
|
|
return;
|
|
|
|
map = g_hash_table_lookup (priv->mappings, child);
|
|
g_assert (map);
|
|
|
|
if (container->children_control_mode == GES_CHILDREN_UPDATE_OFFSETS
|
|
|| ELEMENT_FLAG_IS_SET (child, GES_TIMELINE_ELEMENT_SET_SIMPLE)) {
|
|
map->inpoint_offset = _START (container) - _START (child);
|
|
|
|
return;
|
|
}
|
|
|
|
/* We update all the children calling our set_inpoint method */
|
|
container->initiated_move = child;
|
|
_set_inpoint0 (element, _INPOINT (child) + map->inpoint_offset);
|
|
container->initiated_move = NULL;
|
|
}
|
|
|
|
static void
|
|
_child_duration_changed_cb (GESTimelineElement * child,
|
|
GParamSpec * arg G_GNUC_UNUSED, GESContainer * container)
|
|
{
|
|
ChildMapping *map;
|
|
|
|
GList *tmp;
|
|
GstClockTime end = 0;
|
|
GESContainerPrivate *priv = container->priv;
|
|
GESTimelineElement *element = GES_TIMELINE_ELEMENT (container);
|
|
GESChildrenControlMode pmode = container->children_control_mode;
|
|
|
|
if (container->children_control_mode == GES_CHILDREN_IGNORE_NOTIFIES)
|
|
return;
|
|
|
|
if (ELEMENT_FLAG_IS_SET (child, GES_TIMELINE_ELEMENT_SET_SIMPLE))
|
|
container->children_control_mode = GES_CHILDREN_UPDATE_ALL_VALUES;
|
|
|
|
map = g_hash_table_lookup (priv->mappings, child);
|
|
g_assert (map);
|
|
|
|
switch (container->children_control_mode) {
|
|
case GES_CHILDREN_IGNORE_NOTIFIES:
|
|
break;
|
|
case GES_CHILDREN_UPDATE_ALL_VALUES:
|
|
_ges_container_sort_children_by_end (container);
|
|
|
|
for (tmp = container->children; tmp; tmp = tmp->next)
|
|
end = MAX (end, _END (tmp->data));
|
|
|
|
if (end != _END (container)) {
|
|
_DURATION (container) = end - _START (container);
|
|
g_object_notify (G_OBJECT (container), "duration");
|
|
}
|
|
/* Falltrough */
|
|
case GES_CHILDREN_UPDATE_OFFSETS:
|
|
map->inpoint_offset = _START (container) - _START (child);
|
|
break;
|
|
case GES_CHILDREN_UPDATE:
|
|
/* We update all the children calling our set_duration method */
|
|
container->initiated_move = child;
|
|
_set_duration0 (element, _DURATION (child) + map->duration_offset);
|
|
container->initiated_move = NULL;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
if (ELEMENT_FLAG_IS_SET (child, GES_TIMELINE_ELEMENT_SET_SIMPLE))
|
|
container->children_control_mode = pmode;
|
|
}
|
|
|
|
/****************************************************
|
|
* *
|
|
* Internal methods implementation *
|
|
* *
|
|
****************************************************/
|
|
|
|
void
|
|
_ges_container_sort_children (GESContainer * container)
|
|
{
|
|
container->children = g_list_sort (container->children,
|
|
(GCompareFunc) element_start_compare);
|
|
}
|
|
|
|
void
|
|
_ges_container_sort_children_by_end (GESContainer * container)
|
|
{
|
|
container->children = g_list_sort (container->children,
|
|
(GCompareFunc) element_end_compare);
|
|
}
|
|
|
|
void
|
|
_ges_container_set_height (GESContainer * container, guint32 height)
|
|
{
|
|
if (container->height != height) {
|
|
container->height = height;
|
|
GST_DEBUG_OBJECT (container, "Updating height %i", container->height);
|
|
g_object_notify (G_OBJECT (container), "height");
|
|
}
|
|
}
|
|
|
|
gint
|
|
_ges_container_get_priority_offset (GESContainer * container,
|
|
GESTimelineElement * elem)
|
|
{
|
|
ChildMapping *map = g_hash_table_lookup (container->priv->mappings, elem);
|
|
|
|
g_return_val_if_fail (map, 0);
|
|
|
|
return map->priority_offset;
|
|
}
|
|
|
|
void
|
|
_ges_container_set_priority_offset (GESContainer * container,
|
|
GESTimelineElement * elem, gint32 priority_offset)
|
|
{
|
|
ChildMapping *map = g_hash_table_lookup (container->priv->mappings, elem);
|
|
|
|
g_return_if_fail (map);
|
|
|
|
map->priority_offset = priority_offset;
|
|
}
|
|
|
|
/**********************************************
|
|
* *
|
|
* API implementation *
|
|
* *
|
|
**********************************************/
|
|
|
|
/**
|
|
* ges_container_add:
|
|
* @container: a #GESContainer
|
|
* @child: the #GESTimelineElement
|
|
*
|
|
* Add the #GESTimelineElement to the container.
|
|
*
|
|
* Returns: %TRUE on success, %FALSE on failure.
|
|
*/
|
|
gboolean
|
|
ges_container_add (GESContainer * container, GESTimelineElement * child)
|
|
{
|
|
ChildMapping *mapping;
|
|
gboolean notify_start = FALSE;
|
|
GESContainerClass *class;
|
|
GESContainerPrivate *priv;
|
|
|
|
g_return_val_if_fail (GES_IS_CONTAINER (container), FALSE);
|
|
g_return_val_if_fail (GES_IS_TIMELINE_ELEMENT (child), FALSE);
|
|
g_return_val_if_fail (GES_TIMELINE_ELEMENT_PARENT (child) == NULL, FALSE);
|
|
|
|
class = GES_CONTAINER_GET_CLASS (container);
|
|
priv = container->priv;
|
|
|
|
GST_DEBUG_OBJECT (container, "adding timeline element %" GST_PTR_FORMAT,
|
|
child);
|
|
|
|
container->children_control_mode = GES_CHILDREN_IGNORE_NOTIFIES;
|
|
if (class->add_child) {
|
|
if (class->add_child (container, child) == FALSE) {
|
|
container->children_control_mode = GES_CHILDREN_UPDATE;
|
|
GST_WARNING_OBJECT (container, "Erreur adding child %p", child);
|
|
return FALSE;
|
|
}
|
|
}
|
|
container->children_control_mode = GES_CHILDREN_UPDATE;
|
|
|
|
if (_START (container) > _START (child)) {
|
|
_START (container) = _START (child);
|
|
|
|
g_hash_table_foreach (priv->mappings, (GHFunc) _resync_start_offsets,
|
|
container);
|
|
notify_start = TRUE;
|
|
}
|
|
|
|
mapping = g_slice_new0 (ChildMapping);
|
|
mapping->child = gst_object_ref (child);
|
|
mapping->start_offset = _START (container) - _START (child);
|
|
mapping->duration_offset = _DURATION (container) - _DURATION (child);
|
|
mapping->inpoint_offset = _INPOINT (container) - _INPOINT (child);
|
|
|
|
g_hash_table_insert (priv->mappings, child, mapping);
|
|
|
|
container->children = g_list_prepend (container->children, child);
|
|
|
|
_ges_container_sort_children (container);
|
|
|
|
/* Listen to all property changes */
|
|
mapping->start_notifyid =
|
|
g_signal_connect (G_OBJECT (child), "notify::start",
|
|
G_CALLBACK (_child_start_changed_cb), container);
|
|
mapping->duration_notifyid =
|
|
g_signal_connect (G_OBJECT (child), "notify::duration",
|
|
G_CALLBACK (_child_duration_changed_cb), container);
|
|
mapping->inpoint_notifyid =
|
|
g_signal_connect (G_OBJECT (child), "notify::in-point",
|
|
G_CALLBACK (_child_inpoint_changed_cb), container);
|
|
|
|
if (ges_timeline_element_set_parent (child, GES_TIMELINE_ELEMENT (container))
|
|
== FALSE) {
|
|
if (class->remove_child)
|
|
class->remove_child (container, child);
|
|
|
|
g_hash_table_remove (priv->mappings, child);
|
|
container->children = g_list_remove (container->children, child);
|
|
_ges_container_sort_children (container);
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
_ges_container_add_child_properties (container, child);
|
|
|
|
priv->adding_children = g_list_prepend (priv->adding_children, child);
|
|
g_signal_emit (container, ges_container_signals[CHILD_ADDED_SIGNAL], 0,
|
|
child);
|
|
priv->adding_children = g_list_remove (priv->adding_children, child);
|
|
|
|
if (notify_start)
|
|
g_object_notify (G_OBJECT (container), "start");
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
/**
|
|
* ges_container_remove:
|
|
* @container: a #GESContainer
|
|
* @child: the #GESTimelineElement to release
|
|
*
|
|
* Release the @child from the control of @container.
|
|
*
|
|
* Returns: %TRUE if the @child was properly released, else %FALSE.
|
|
*/
|
|
gboolean
|
|
ges_container_remove (GESContainer * container, GESTimelineElement * child)
|
|
{
|
|
GESContainerClass *klass;
|
|
GESContainerPrivate *priv;
|
|
|
|
g_return_val_if_fail (GES_IS_CONTAINER (container), FALSE);
|
|
g_return_val_if_fail (GES_IS_TIMELINE_ELEMENT (child), FALSE);
|
|
|
|
GST_DEBUG_OBJECT (container, "removing child: %" GST_PTR_FORMAT, child);
|
|
|
|
klass = GES_CONTAINER_GET_CLASS (container);
|
|
priv = container->priv;
|
|
|
|
if (!(g_hash_table_lookup (priv->mappings, child))) {
|
|
GST_WARNING_OBJECT (container, "Element isn't controlled by this "
|
|
"container");
|
|
return FALSE;
|
|
}
|
|
|
|
if (klass->remove_child) {
|
|
if (klass->remove_child (container, child) == FALSE)
|
|
return FALSE;
|
|
}
|
|
|
|
container->children = g_list_remove (container->children, child);
|
|
/* Let it live removing from our mappings */
|
|
g_hash_table_remove (priv->mappings, child);
|
|
|
|
_ges_container_remove_child_properties (container, child);
|
|
|
|
if (!g_list_find (container->priv->adding_children, child)) {
|
|
g_signal_emit (container, ges_container_signals[CHILD_REMOVED_SIGNAL], 0,
|
|
child);
|
|
} else {
|
|
GST_INFO_OBJECT (container, "Not emitting 'child-removed' signal as child"
|
|
" removal happend during 'child-added' signal emission");
|
|
}
|
|
gst_object_unref (child);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static void
|
|
_get_children_recursively (GESContainer * container, GList ** children)
|
|
{
|
|
GList *tmp;
|
|
|
|
*children =
|
|
g_list_concat (*children, g_list_copy_deep (container->children,
|
|
(GCopyFunc) gst_object_ref, NULL));
|
|
|
|
for (tmp = container->children; tmp; tmp = tmp->next) {
|
|
GESTimelineElement *element = tmp->data;
|
|
|
|
if (GES_IS_CONTAINER (element))
|
|
_get_children_recursively (tmp->data, children);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* ges_container_get_children:
|
|
* @container: a #GESContainer
|
|
* @recursive: Whether to recursively get children in @container
|
|
*
|
|
* Get the list of #GESTimelineElement contained in @container
|
|
* The user is responsible for unreffing the contained objects
|
|
* and freeing the list.
|
|
*
|
|
* Returns: (transfer full) (element-type GESTimelineElement): The list of
|
|
* timeline element contained in @container.
|
|
*/
|
|
GList *
|
|
ges_container_get_children (GESContainer * container, gboolean recursive)
|
|
{
|
|
GList *children = NULL;
|
|
|
|
g_return_val_if_fail (GES_IS_CONTAINER (container), NULL);
|
|
|
|
if (!recursive)
|
|
return g_list_copy_deep (container->children, (GCopyFunc) gst_object_ref,
|
|
NULL);
|
|
|
|
_get_children_recursively (container, &children);
|
|
return children;
|
|
}
|
|
|
|
/**
|
|
* ges_container_ungroup:
|
|
* @container: (transfer full): The #GESContainer to ungroup
|
|
* @recursive: Wether to recursively ungroup @container
|
|
*
|
|
* Ungroups the #GESTimelineElement contained in this GESContainer,
|
|
* creating new #GESContainer containing those #GESTimelineElement
|
|
* apropriately.
|
|
*
|
|
* Returns: (transfer full) (element-type GESContainer): The list of
|
|
* #GESContainer resulting from the ungrouping operation
|
|
* The user is responsible for unreffing the contained objects
|
|
* and freeing the list.
|
|
*/
|
|
GList *
|
|
ges_container_ungroup (GESContainer * container, gboolean recursive)
|
|
{
|
|
GESContainerClass *klass;
|
|
|
|
g_return_val_if_fail (GES_IS_CONTAINER (container), NULL);
|
|
|
|
GST_DEBUG_OBJECT (container, "Ungrouping container %s recursively",
|
|
recursive ? "" : "not");
|
|
|
|
klass = GES_CONTAINER_GET_CLASS (container);
|
|
if (klass->ungroup == NULL) {
|
|
GST_INFO_OBJECT (container, "No ungoup virtual method, doint nothing");
|
|
return NULL;
|
|
}
|
|
|
|
return klass->ungroup (container, recursive);
|
|
}
|
|
|
|
/**
|
|
* ges_container_group:
|
|
* @containers: (transfer none)(element-type GESContainer) (allow-none): The
|
|
* #GESContainer to group, they must all be in a same #GESTimeline
|
|
*
|
|
* Groups the #GESContainer-s provided in @containers. It creates a subclass
|
|
* of #GESContainer, depending on the containers provided in @containers.
|
|
* Basically, if all the containers in @containers should be contained in a same
|
|
* clip (all the #GESTrackElement they contain have the exact same
|
|
* start/inpoint/duration and are in the same layer), it will create a #GESClip
|
|
* otherwise a #GESGroup will be created
|
|
*
|
|
* Returns: (transfer none): The #GESContainer (subclass) resulting of the
|
|
* grouping
|
|
*/
|
|
GESContainer *
|
|
ges_container_group (GList * containers)
|
|
{
|
|
GList *tmp;
|
|
guint n_children;
|
|
GType *children_types;
|
|
GESTimelineElement *element;
|
|
GObjectClass *clip_class;
|
|
|
|
guint i = 0;
|
|
GESContainer *ret = NULL;
|
|
GESTimeline *timeline = NULL;
|
|
|
|
if (containers) {
|
|
element = GES_TIMELINE_ELEMENT (containers->data);
|
|
timeline = GES_TIMELINE_ELEMENT_TIMELINE (element);
|
|
g_return_val_if_fail (timeline, NULL);
|
|
}
|
|
|
|
if (g_list_length (containers) == 1)
|
|
return containers->data;
|
|
|
|
for (tmp = containers; tmp; tmp = tmp->next) {
|
|
g_return_val_if_fail (GES_IS_CONTAINER (tmp->data), NULL);
|
|
g_return_val_if_fail (GES_TIMELINE_ELEMENT_PARENT (tmp->data) == NULL,
|
|
NULL);
|
|
g_return_val_if_fail (GES_TIMELINE_ELEMENT_TIMELINE (tmp->data) == timeline,
|
|
NULL);
|
|
}
|
|
|
|
children_types = g_type_children (GES_TYPE_CONTAINER, &n_children);
|
|
g_qsort_with_data (children_types, n_children, sizeof (GType),
|
|
(GCompareDataFunc) compare_grouping_prio, NULL);
|
|
|
|
for (i = 0; i < n_children; i++) {
|
|
clip_class = g_type_class_peek (children_types[i]);
|
|
ret = GES_CONTAINER_CLASS (clip_class)->group (containers);
|
|
|
|
if (ret)
|
|
break;
|
|
}
|
|
|
|
g_free (children_types);
|
|
return ret;
|
|
}
|
|
|
|
/**
|
|
* ges_container_edit:
|
|
* @container: the #GESClip 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.
|
|
* @new_layer_priority: The priority of the layer @container should land in.
|
|
* If the layer you're trying to move the container to doesn't exist, it will
|
|
* be created automatically. -1 means no move.
|
|
* @mode: The #GESEditMode in which the editition will happen.
|
|
* @edge: The #GESEdge the edit should happen on.
|
|
* @position: The position at which to edit @container (in nanosecond)
|
|
*
|
|
* Edit @container in the different exisiting #GESEditMode modes. In the case of
|
|
* slide, and roll, you need to specify a #GESEdge
|
|
*
|
|
* Returns: %TRUE if the container as been edited properly, %FALSE if an error
|
|
* occured
|
|
*
|
|
* Deprecated: 1.18: use #ges_timeline_element_edit instead.
|
|
*/
|
|
gboolean
|
|
ges_container_edit (GESContainer * container, GList * layers,
|
|
gint new_layer_priority, GESEditMode mode, GESEdge edge, guint64 position)
|
|
{
|
|
g_return_val_if_fail (GES_IS_CONTAINER (container), FALSE);
|
|
|
|
return ges_timeline_element_edit (GES_TIMELINE_ELEMENT (container),
|
|
layers, new_layer_priority, mode, edge, position);
|
|
}
|