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31ccb3106f
In the case of nested timeline in the toplevel timeline we ended up with CompositionUpdate for seeks sent by our own composition to granchildren composition. This was not causing essential issues if all tracks where containing nested timelines but in cases where one of the tracks only had a nested timelines, then we were waiting forever for a `CompositionUpdateDone`. CompositionUpdate translated into ASYNC_START/ASYNC_DONE should be kept inside the GESTimeline and not travel up (possibly to some parent GESTimeline).
2720 lines
80 KiB
C
2720 lines
80 KiB
C
/* GStreamer Editing Services
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* Copyright (C) 2009 Edward Hervey <edward.hervey@collabora.co.uk>
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* 2009 Nokia Corporation
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* 2012 Thibault Saunier <tsaunier@gnome.org>
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* 2012 Collabora Ltd.
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* Author: Sebastian Dröge <sebastian.droege@collabora.co.uk>
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* 2019 Igalia S.L
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* Author: Thibault Saunier <tsaunier@igalia.com>
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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:gestimeline
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* @title: GESTimeline
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* @short_description: Multimedia timeline
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*
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* #GESTimeline is the central object for any multimedia timeline.
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*
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* Contains a list of #GESLayer which users should use to arrange the
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* various clips through time.
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*
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* The output types are determined by the #GESTrack that are set on
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* the #GESTimeline.
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*
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* To save/load a timeline, you can use the ges_timeline_load_from_uri() and
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* ges_timeline_save_to_uri() methods to use the default format. If you wish
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*
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* Note that any change you make in the timeline will not actually be taken
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* into account until you call the #ges_timeline_commit method.
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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-internal.h"
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#include "ges-project.h"
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#include "ges-container.h"
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#include "ges-timeline.h"
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#include "ges-timeline-tree.h"
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#include "ges-track.h"
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#include "ges-layer.h"
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#include "ges-auto-transition.h"
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#include "ges.h"
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static GPtrArray *select_tracks_for_object_default (GESTimeline * timeline,
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GESClip * clip, GESTrackElement * tr_obj, gpointer user_data);
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static void ges_extractable_interface_init (GESExtractableInterface * iface);
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static void ges_meta_container_interface_init
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(GESMetaContainerInterface * iface);
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GST_DEBUG_CATEGORY_STATIC (ges_timeline_debug);
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#undef GST_CAT_DEFAULT
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#define GST_CAT_DEFAULT ges_timeline_debug
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/* lock to protect dynamic callbacks, like pad-added */
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#define DYN_LOCK(timeline) (&GES_TIMELINE (timeline)->priv->dyn_mutex)
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#define LOCK_DYN(timeline) G_STMT_START { \
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GST_LOG_OBJECT (timeline, "Getting dynamic lock from %p", \
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g_thread_self()); \
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g_rec_mutex_lock (DYN_LOCK (timeline)); \
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GST_LOG_OBJECT (timeline, "Got Dynamic lock from %p", \
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g_thread_self()); \
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} G_STMT_END
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#define UNLOCK_DYN(timeline) G_STMT_START { \
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GST_LOG_OBJECT (timeline, "Unlocking dynamic lock from %p", \
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g_thread_self()); \
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g_rec_mutex_unlock (DYN_LOCK (timeline)); \
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GST_LOG_OBJECT (timeline, "Unlocked Dynamic lock from %p", \
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g_thread_self()); \
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} G_STMT_END
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#define CHECK_THREAD(timeline) g_assert(timeline->priv->valid_thread == g_thread_self())
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struct _GESTimelinePrivate
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{
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GNode *tree;
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/* The duration of the timeline */
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gint64 duration;
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/* The auto-transition of the timeline */
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gboolean auto_transition;
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/* Timeline edition modes and snapping management */
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guint64 snapping_distance;
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GRecMutex dyn_mutex;
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GList *priv_tracks;
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/* Avoid sorting layers when we are actually resyncing them ourself */
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gboolean resyncing_layers;
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GList *auto_transitions;
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/* Last snapping properties */
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GstClockTime last_snap_ts;
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GESTrackElement *last_snaped1;
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GESTrackElement *last_snaped2;
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/* This variable is set to %TRUE when it makes sense to update the transitions,
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* and %FALSE otherwize */
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gboolean needs_transitions_update;
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/* While we are creating and adding the TrackElements for a clip, we need to
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* ignore the child-added signal */
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GESClip *ignore_track_element_added;
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GList *groups;
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guint stream_start_group_id;
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GHashTable *all_elements;
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/* With GST_OBJECT_LOCK */
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guint expected_async_done;
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/* With GST_OBJECT_LOCK */
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guint expected_commited;
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/* For ges_timeline_commit_sync */
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GMutex commited_lock;
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GCond commited_cond;
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GThread *valid_thread;
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GstStreamCollection *stream_collection;
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};
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/* private structure to contain our track-related information */
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typedef struct
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{
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GESTimeline *timeline;
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GESTrack *track;
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GstPad *pad; /* Pad from the track */
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GstPad *ghostpad;
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gulong probe_id;
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GstStream *stream;
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} TrackPrivate;
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enum
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{
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PROP_0,
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PROP_DURATION,
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PROP_AUTO_TRANSITION,
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PROP_SNAPPING_DISTANCE,
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PROP_UPDATE,
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PROP_LAST
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};
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static GParamSpec *properties[PROP_LAST];
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enum
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{
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TRACK_ADDED,
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TRACK_REMOVED,
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LAYER_ADDED,
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LAYER_REMOVED,
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GROUP_ADDED,
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GROUP_REMOVED,
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SNAPING_STARTED,
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SNAPING_ENDED,
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SELECT_TRACKS_FOR_OBJECT,
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COMMITED,
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LAST_SIGNAL
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};
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G_DEFINE_TYPE_WITH_CODE (GESTimeline, ges_timeline, GST_TYPE_BIN,
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G_ADD_PRIVATE (GESTimeline)
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G_IMPLEMENT_INTERFACE (GES_TYPE_EXTRACTABLE, ges_extractable_interface_init)
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G_IMPLEMENT_INTERFACE (GES_TYPE_META_CONTAINER,
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ges_meta_container_interface_init));
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static GstBinClass *parent_class;
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static guint ges_timeline_signals[LAST_SIGNAL] = { 0 };
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static gint custom_find_track (TrackPrivate * tr_priv, GESTrack * track);
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static guint nb_assets = 0;
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/* GESExtractable implementation */
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static gchar *
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extractable_check_id (GType type, const gchar * id)
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{
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gchar *res;
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if (id == NULL)
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res = g_strdup_printf ("%s-%i", "project", nb_assets);
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else
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res = g_strdup (id);
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nb_assets++;
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return res;
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}
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static gchar *
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extractable_get_id (GESExtractable * self)
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{
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GESAsset *asset;
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if (!(asset = ges_extractable_get_asset (self)))
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return NULL;
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return g_strdup (ges_asset_get_id (asset));
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}
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static void
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ges_extractable_interface_init (GESExtractableInterface * iface)
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{
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iface->asset_type = GES_TYPE_PROJECT;
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iface->check_id = (GESExtractableCheckId) extractable_check_id;
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iface->get_id = extractable_get_id;
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}
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static void
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ges_meta_container_interface_init (GESMetaContainerInterface * iface)
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{
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}
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/* GObject Standard vmethods*/
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static void
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ges_timeline_get_property (GObject * object, guint property_id,
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GValue * value, GParamSpec * pspec)
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{
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GESTimeline *timeline = GES_TIMELINE (object);
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switch (property_id) {
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case PROP_DURATION:
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g_value_set_uint64 (value, timeline->priv->duration);
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break;
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case PROP_AUTO_TRANSITION:
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g_value_set_boolean (value, timeline->priv->auto_transition);
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break;
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case PROP_SNAPPING_DISTANCE:
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g_value_set_uint64 (value, timeline->priv->snapping_distance);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
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}
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}
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static void
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ges_timeline_set_property (GObject * object, guint property_id,
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const GValue * value, GParamSpec * pspec)
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{
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GESTimeline *timeline = GES_TIMELINE (object);
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switch (property_id) {
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case PROP_AUTO_TRANSITION:
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ges_timeline_set_auto_transition (timeline, g_value_get_boolean (value));
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break;
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case PROP_SNAPPING_DISTANCE:
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timeline->priv->snapping_distance = g_value_get_uint64 (value);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
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}
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}
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static void
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ges_timeline_dispose (GObject * object)
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{
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GESTimeline *tl = GES_TIMELINE (object);
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GESTimelinePrivate *priv = tl->priv;
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GList *tmp, *groups;
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while (tl->layers) {
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GESLayer *layer = (GESLayer *) tl->layers->data;
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ges_timeline_remove_layer (GES_TIMELINE (object), layer);
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}
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/* FIXME: it should be possible to remove tracks before removing
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* layers, but at the moment this creates a problem because the track
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* objects aren't notified that their nleobjects have been destroyed.
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*/
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while (tl->tracks)
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ges_timeline_remove_track (GES_TIMELINE (object), tl->tracks->data);
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groups = g_list_copy (priv->groups);
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for (tmp = groups; tmp; tmp = tmp->next) {
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GList *elems = ges_container_ungroup (tmp->data, FALSE);
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g_list_free_full (elems, gst_object_unref);
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}
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g_list_free (priv->groups);
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g_list_free (groups);
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g_list_free_full (priv->auto_transitions, gst_object_unref);
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g_hash_table_unref (priv->all_elements);
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gst_object_unref (priv->stream_collection);
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G_OBJECT_CLASS (ges_timeline_parent_class)->dispose (object);
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}
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static void
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ges_timeline_finalize (GObject * object)
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{
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GESTimeline *tl = GES_TIMELINE (object);
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g_rec_mutex_clear (&tl->priv->dyn_mutex);
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g_node_destroy (tl->priv->tree);
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G_OBJECT_CLASS (ges_timeline_parent_class)->finalize (object);
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}
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static void
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ges_timeline_handle_message (GstBin * bin, GstMessage * message)
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{
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GESTimeline *timeline = GES_TIMELINE (bin);
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if (GST_MESSAGE_TYPE (message) == GST_MESSAGE_ELEMENT) {
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GstMessage *amessage = NULL;
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const GstStructure *mstructure = gst_message_get_structure (message);
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if (gst_structure_has_name (mstructure, "NleCompositionStartUpdate")) {
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if (g_strcmp0 (gst_structure_get_string (mstructure, "reason"), "Seek")) {
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GST_INFO_OBJECT (timeline,
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"A composition is starting an update because of %s"
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" not considering async", gst_structure_get_string (mstructure,
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"reason"));
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goto forward;
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}
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GST_OBJECT_LOCK (timeline);
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if (timeline->priv->expected_async_done == 0) {
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amessage = gst_message_new_async_start (GST_OBJECT_CAST (bin));
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timeline->priv->expected_async_done = g_list_length (timeline->tracks);
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GST_INFO_OBJECT (timeline, "Posting ASYNC_START %s",
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gst_structure_get_string (mstructure, "reason"));
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}
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GST_OBJECT_UNLOCK (timeline);
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} else if (gst_structure_has_name (mstructure, "NleCompositionUpdateDone")) {
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if (g_strcmp0 (gst_structure_get_string (mstructure, "reason"), "Seek")) {
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GST_INFO_OBJECT (timeline,
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"A composition is done updating because of %s"
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" not considering async", gst_structure_get_string (mstructure,
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"reason"));
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goto forward;
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}
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GST_OBJECT_LOCK (timeline);
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timeline->priv->expected_async_done -= 1;
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if (timeline->priv->expected_async_done == 0) {
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amessage = gst_message_new_async_done (GST_OBJECT_CAST (bin),
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GST_CLOCK_TIME_NONE);
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GST_INFO_OBJECT (timeline, "Posting ASYNC_DONE %s",
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gst_structure_get_string (mstructure, "reason"));
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}
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GST_OBJECT_UNLOCK (timeline);
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}
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if (amessage) {
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gst_element_post_message (GST_ELEMENT_CAST (bin), amessage);
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return;
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}
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}
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forward:
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gst_element_post_message (GST_ELEMENT_CAST (bin), message);
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}
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static GstStateChangeReturn
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ges_timeline_change_state (GstElement * element, GstStateChange transition)
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{
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GstStateChangeReturn res;
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GESTimeline *timeline = GES_TIMELINE (element);
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res = GST_ELEMENT_CLASS (ges_timeline_parent_class)->change_state (element,
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transition);
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if (transition == GST_STATE_CHANGE_READY_TO_PAUSED)
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gst_element_post_message ((GstElement *) timeline,
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gst_message_new_stream_collection ((GstObject *) timeline,
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timeline->priv->stream_collection));
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return res;
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}
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static gboolean
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ges_timeline_send_event (GstElement * element, GstEvent * event)
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{
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GESTimeline *timeline = GES_TIMELINE (element);
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if (GST_EVENT_TYPE (event) == GST_EVENT_SELECT_STREAMS) {
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GList *stream_ids = NULL, *tmp, *to_remove =
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ges_timeline_get_tracks (timeline);
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gst_event_parse_select_streams (event, &stream_ids);
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for (tmp = stream_ids; tmp; tmp = tmp->next) {
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GList *trackit;
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gchar *stream_id = tmp->data;
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LOCK_DYN (timeline);
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for (trackit = timeline->priv->priv_tracks; trackit;
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trackit = trackit->next) {
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TrackPrivate *tr_priv = trackit->data;
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if (!g_strcmp0 (gst_stream_get_stream_id (tr_priv->stream), stream_id)) {
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to_remove = g_list_remove (to_remove, tr_priv->track);
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}
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}
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UNLOCK_DYN (timeline);
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}
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for (tmp = to_remove; tmp; tmp = tmp->next) {
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GST_INFO_OBJECT (timeline, "Removed unselected track: %" GST_PTR_FORMAT,
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tmp->data);
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ges_timeline_remove_track (timeline, tmp->data);
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}
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g_list_free_full (stream_ids, g_free);
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g_list_free (to_remove);
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return TRUE;
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}
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return GST_ELEMENT_CLASS (ges_timeline_parent_class)->send_event (element,
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event);
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}
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/* we collect the first result */
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static gboolean
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_gst_array_accumulator (GSignalInvocationHint * ihint,
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GValue * return_accu, const GValue * handler_return, gpointer dummy)
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{
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gpointer array;
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array = g_value_get_boxed (handler_return);
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if (!(ihint->run_type & G_SIGNAL_RUN_CLEANUP))
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g_value_set_boxed (return_accu, array);
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return FALSE;
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}
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static void
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ges_timeline_class_init (GESTimelineClass * klass)
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{
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GObjectClass *object_class = G_OBJECT_CLASS (klass);
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GstElementClass *element_class = (GstElementClass *) klass;
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GstBinClass *bin_class = GST_BIN_CLASS (klass);
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GST_DEBUG_CATEGORY_INIT (ges_timeline_debug, "gestimeline",
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GST_DEBUG_FG_YELLOW, "ges timeline");
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timeline_tree_init_debug ();
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parent_class = g_type_class_peek_parent (klass);
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object_class->get_property = ges_timeline_get_property;
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object_class->set_property = ges_timeline_set_property;
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object_class->dispose = ges_timeline_dispose;
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object_class->finalize = ges_timeline_finalize;
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element_class->change_state = GST_DEBUG_FUNCPTR (ges_timeline_change_state);
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element_class->send_event = GST_DEBUG_FUNCPTR (ges_timeline_send_event);
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bin_class->handle_message = GST_DEBUG_FUNCPTR (ges_timeline_handle_message);
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/**
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* GESTimeline:duration:
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*
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* Current duration (in nanoseconds) of the #GESTimeline
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*/
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properties[PROP_DURATION] =
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g_param_spec_uint64 ("duration", "Duration",
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"The duration of the timeline", 0, G_MAXUINT64,
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GST_CLOCK_TIME_NONE, G_PARAM_READABLE);
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g_object_class_install_property (object_class, PROP_DURATION,
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properties[PROP_DURATION]);
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|
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/**
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* GESTimeline:auto-transition:
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*
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* Sets whether transitions are added automagically when clips overlap.
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*/
|
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g_object_class_install_property (object_class, PROP_AUTO_TRANSITION,
|
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g_param_spec_boolean ("auto-transition", "Auto-Transition",
|
|
"whether the transitions are added", FALSE, G_PARAM_READWRITE));
|
|
|
|
/**
|
|
* GESTimeline:snapping-distance:
|
|
*
|
|
* Distance (in nanoseconds) from which a moving object will snap
|
|
* with it neighboors. 0 means no snapping.
|
|
*/
|
|
properties[PROP_SNAPPING_DISTANCE] =
|
|
g_param_spec_uint64 ("snapping-distance", "Snapping distance",
|
|
"Distance from which moving an object will snap with neighboors", 0,
|
|
G_MAXUINT64, 0, G_PARAM_READWRITE);
|
|
g_object_class_install_property (object_class, PROP_SNAPPING_DISTANCE,
|
|
properties[PROP_SNAPPING_DISTANCE]);
|
|
|
|
/**
|
|
* GESTimeline::track-added:
|
|
* @timeline: the #GESTimeline
|
|
* @track: the #GESTrack that was added to the timeline
|
|
*
|
|
* Will be emitted after the track was added to the timeline.
|
|
*/
|
|
ges_timeline_signals[TRACK_ADDED] =
|
|
g_signal_new ("track-added", G_TYPE_FROM_CLASS (klass),
|
|
G_SIGNAL_RUN_FIRST, G_STRUCT_OFFSET (GESTimelineClass, track_added), NULL,
|
|
NULL, g_cclosure_marshal_generic, G_TYPE_NONE, 1, GES_TYPE_TRACK);
|
|
|
|
/**
|
|
* GESTimeline::track-removed:
|
|
* @timeline: the #GESTimeline
|
|
* @track: the #GESTrack that was removed from the timeline
|
|
*
|
|
* Will be emitted after the track was removed from the timeline.
|
|
*/
|
|
ges_timeline_signals[TRACK_REMOVED] =
|
|
g_signal_new ("track-removed", G_TYPE_FROM_CLASS (klass),
|
|
G_SIGNAL_RUN_FIRST, G_STRUCT_OFFSET (GESTimelineClass, track_removed),
|
|
NULL, NULL, g_cclosure_marshal_generic, G_TYPE_NONE, 1, GES_TYPE_TRACK);
|
|
|
|
/**
|
|
* GESTimeline::layer-added:
|
|
* @timeline: the #GESTimeline
|
|
* @layer: the #GESLayer that was added to the timeline
|
|
*
|
|
* Will be emitted after a new layer is added to the timeline.
|
|
*/
|
|
ges_timeline_signals[LAYER_ADDED] =
|
|
g_signal_new ("layer-added", G_TYPE_FROM_CLASS (klass),
|
|
G_SIGNAL_RUN_FIRST, G_STRUCT_OFFSET (GESTimelineClass, layer_added), NULL,
|
|
NULL, g_cclosure_marshal_generic, G_TYPE_NONE, 1, GES_TYPE_LAYER);
|
|
|
|
/**
|
|
* GESTimeline::layer-removed:
|
|
* @timeline: the #GESTimeline
|
|
* @layer: the #GESLayer that was removed from the timeline
|
|
*
|
|
* Will be emitted after the layer was removed from the timeline.
|
|
*/
|
|
ges_timeline_signals[LAYER_REMOVED] =
|
|
g_signal_new ("layer-removed", G_TYPE_FROM_CLASS (klass),
|
|
G_SIGNAL_RUN_FIRST, G_STRUCT_OFFSET (GESTimelineClass, layer_removed),
|
|
NULL, NULL, g_cclosure_marshal_generic, G_TYPE_NONE, 1, GES_TYPE_LAYER);
|
|
|
|
/**
|
|
* GESTimeline::group-added
|
|
* @timeline: the #GESTimeline
|
|
* @group: the #GESGroup
|
|
*
|
|
* Will be emitted after a new group is added to to the timeline.
|
|
*/
|
|
ges_timeline_signals[GROUP_ADDED] =
|
|
g_signal_new ("group-added", G_TYPE_FROM_CLASS (klass),
|
|
G_SIGNAL_RUN_FIRST, G_STRUCT_OFFSET (GESTimelineClass, group_added), NULL,
|
|
NULL, g_cclosure_marshal_generic, G_TYPE_NONE, 1, GES_TYPE_GROUP);
|
|
|
|
/**
|
|
* GESTimeline::group-removed
|
|
* @timeline: the #GESTimeline
|
|
* @group: the #GESGroup
|
|
* @children: (element-type GES.Container) (transfer container): a list of #GESContainer
|
|
*
|
|
* Will be emitted after a group has been removed from the timeline.
|
|
*/
|
|
ges_timeline_signals[GROUP_REMOVED] =
|
|
g_signal_new ("group-removed", G_TYPE_FROM_CLASS (klass),
|
|
G_SIGNAL_RUN_FIRST, G_STRUCT_OFFSET (GESTimelineClass, group_removed),
|
|
NULL, NULL, g_cclosure_marshal_generic, G_TYPE_NONE, 2, GES_TYPE_GROUP,
|
|
G_TYPE_PTR_ARRAY);
|
|
|
|
/**
|
|
* GESTimeline::snapping-started:
|
|
* @timeline: the #GESTimeline
|
|
* @obj1: the first #GESTrackElement that was snapping.
|
|
* @obj2: the second #GESTrackElement that was snapping.
|
|
* @position: the position where the two objects finally snapping.
|
|
*
|
|
* Will be emitted when the 2 #GESTrackElement first snapped
|
|
*/
|
|
ges_timeline_signals[SNAPING_STARTED] =
|
|
g_signal_new ("snapping-started", G_TYPE_FROM_CLASS (klass),
|
|
G_SIGNAL_RUN_LAST, 0, NULL, NULL, NULL,
|
|
G_TYPE_NONE, 3, GES_TYPE_TRACK_ELEMENT, GES_TYPE_TRACK_ELEMENT,
|
|
G_TYPE_UINT64);
|
|
|
|
/**
|
|
* GESTimeline::snapping-ended:
|
|
* @timeline: the #GESTimeline
|
|
* @obj1: the first #GESTrackElement that was snapping.
|
|
* @obj2: the second #GESTrackElement that was snapping.
|
|
* @position: the position where the two objects finally snapping.
|
|
*
|
|
* Will be emitted when the 2 #GESTrackElement ended to snap
|
|
*/
|
|
ges_timeline_signals[SNAPING_ENDED] =
|
|
g_signal_new ("snapping-ended", G_TYPE_FROM_CLASS (klass),
|
|
G_SIGNAL_RUN_LAST, 0, NULL, NULL, NULL,
|
|
G_TYPE_NONE, 3, GES_TYPE_TRACK_ELEMENT, GES_TYPE_TRACK_ELEMENT,
|
|
G_TYPE_UINT64);
|
|
|
|
/**
|
|
* GESTimeline::select-tracks-for-object:
|
|
* @timeline: the #GESTimeline
|
|
* @clip: The #GESClip on which @track_element will land
|
|
* @track_element: The #GESTrackElement for which to choose the tracks it should land into
|
|
*
|
|
* Returns: (transfer full) (element-type GESTrack): a #GPtrArray of #GESTrack-s where that object should be added
|
|
*/
|
|
ges_timeline_signals[SELECT_TRACKS_FOR_OBJECT] =
|
|
g_signal_new ("select-tracks-for-object", G_TYPE_FROM_CLASS (klass),
|
|
G_SIGNAL_RUN_LAST, 0, _gst_array_accumulator, NULL, NULL,
|
|
G_TYPE_PTR_ARRAY, 2, GES_TYPE_CLIP, GES_TYPE_TRACK_ELEMENT);
|
|
|
|
/**
|
|
* GESTimeline::commited:
|
|
* @timeline: the #GESTimeline
|
|
*
|
|
* This signal will be emitted once the changes initiated by #ges_timeline_commit
|
|
* have been executed in the backend. Use #ges_timeline_commit_sync if you
|
|
* don't need to do anything in the meantime.
|
|
*/
|
|
ges_timeline_signals[COMMITED] =
|
|
g_signal_new ("commited", G_TYPE_FROM_CLASS (klass),
|
|
G_SIGNAL_RUN_LAST, 0, NULL, NULL, NULL, G_TYPE_NONE, 0);
|
|
}
|
|
|
|
static void
|
|
ges_timeline_init (GESTimeline * self)
|
|
{
|
|
GESTimelinePrivate *priv = self->priv;
|
|
|
|
self->priv = ges_timeline_get_instance_private (self);
|
|
self->priv->tree = g_node_new (self);
|
|
|
|
priv = self->priv;
|
|
self->layers = NULL;
|
|
self->tracks = NULL;
|
|
self->priv->duration = 0;
|
|
self->priv->auto_transition = FALSE;
|
|
priv->snapping_distance = 0;
|
|
priv->expected_async_done = 0;
|
|
priv->expected_commited = 0;
|
|
|
|
self->priv->last_snap_ts = GST_CLOCK_TIME_NONE;
|
|
|
|
priv->priv_tracks = NULL;
|
|
priv->needs_transitions_update = TRUE;
|
|
|
|
priv->all_elements =
|
|
g_hash_table_new_full (g_str_hash, g_str_equal, g_free, gst_object_unref);
|
|
|
|
priv->stream_start_group_id = -1;
|
|
priv->stream_collection = gst_stream_collection_new (NULL);
|
|
|
|
g_signal_connect_after (self, "select-tracks-for-object",
|
|
G_CALLBACK (select_tracks_for_object_default), NULL);
|
|
|
|
g_rec_mutex_init (&priv->dyn_mutex);
|
|
g_mutex_init (&priv->commited_lock);
|
|
priv->valid_thread = g_thread_self ();
|
|
}
|
|
|
|
/* Private methods */
|
|
|
|
static inline GESContainer *
|
|
get_toplevel_container (gpointer element)
|
|
{
|
|
GESTimelineElement *ret =
|
|
ges_timeline_element_get_toplevel_parent ((GESTimelineElement
|
|
*) (element));
|
|
|
|
/* We own a ref to the elements ourself */
|
|
gst_object_unref (ret);
|
|
return (GESContainer *) ret;
|
|
}
|
|
|
|
/* Sorting utils*/
|
|
static gint
|
|
sort_layers (gpointer a, gpointer b)
|
|
{
|
|
GESLayer *layer_a, *layer_b;
|
|
guint prio_a, prio_b;
|
|
|
|
layer_a = GES_LAYER (a);
|
|
layer_b = GES_LAYER (b);
|
|
|
|
prio_a = ges_layer_get_priority (layer_a);
|
|
prio_b = ges_layer_get_priority (layer_b);
|
|
|
|
if ((gint) prio_a > (guint) prio_b)
|
|
return 1;
|
|
if ((guint) prio_a < (guint) prio_b)
|
|
return -1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void
|
|
_resync_layers (GESTimeline * timeline)
|
|
{
|
|
GList *tmp;
|
|
gint i = 0;
|
|
|
|
timeline->priv->resyncing_layers = TRUE;
|
|
for (tmp = timeline->layers; tmp; tmp = tmp->next) {
|
|
layer_set_priority (tmp->data, i, TRUE);
|
|
i++;
|
|
}
|
|
timeline->priv->resyncing_layers = FALSE;
|
|
}
|
|
|
|
void
|
|
timeline_update_duration (GESTimeline * timeline)
|
|
{
|
|
GstClockTime duration = timeline_tree_get_duration (timeline->priv->tree);
|
|
|
|
if (timeline->priv->duration != duration) {
|
|
GST_DEBUG ("track duration : %" GST_TIME_FORMAT " current : %"
|
|
GST_TIME_FORMAT, GST_TIME_ARGS (duration),
|
|
GST_TIME_ARGS (timeline->priv->duration));
|
|
|
|
timeline->priv->duration = duration;
|
|
|
|
g_object_notify_by_pspec (G_OBJECT (timeline), properties[PROP_DURATION]);
|
|
}
|
|
}
|
|
|
|
static gint
|
|
custom_find_track (TrackPrivate * tr_priv, GESTrack * track)
|
|
{
|
|
if (tr_priv->track == track)
|
|
return 0;
|
|
return -1;
|
|
}
|
|
|
|
static void
|
|
_destroy_auto_transition_cb (GESAutoTransition * auto_transition,
|
|
GESTimeline * timeline)
|
|
{
|
|
GESTimelinePrivate *priv = timeline->priv;
|
|
GESClip *transition = auto_transition->transition_clip;
|
|
GESLayer *layer = ges_clip_get_layer (transition);
|
|
|
|
ges_layer_remove_clip (layer, transition);
|
|
g_signal_handlers_disconnect_by_func (auto_transition,
|
|
_destroy_auto_transition_cb, timeline);
|
|
|
|
priv->auto_transitions =
|
|
g_list_remove (priv->auto_transitions, auto_transition);
|
|
gst_object_unref (auto_transition);
|
|
}
|
|
|
|
GESAutoTransition *
|
|
ges_timeline_create_transition (GESTimeline * timeline,
|
|
GESTrackElement * previous, GESTrackElement * next, GESClip * transition,
|
|
GESLayer * layer, guint64 start, guint64 duration)
|
|
{
|
|
GESAsset *asset;
|
|
GESAutoTransition *auto_transition;
|
|
|
|
if (transition == NULL) {
|
|
/* TODO make it possible to specify a Transition asset in the API */
|
|
asset = ges_asset_request (GES_TYPE_TRANSITION_CLIP, "crossfade", NULL);
|
|
transition =
|
|
ges_layer_add_asset (layer, asset, start, 0, duration,
|
|
ges_track_element_get_track_type (next));
|
|
g_object_unref (asset);
|
|
} else {
|
|
GST_DEBUG_OBJECT (timeline,
|
|
"Reusing already existing transition: %" GST_PTR_FORMAT, transition);
|
|
}
|
|
|
|
/* We know there is only 1 TrackElement */
|
|
auto_transition =
|
|
ges_auto_transition_new (GES_CONTAINER_CHILDREN (transition)->data,
|
|
previous, next);
|
|
|
|
g_signal_connect (auto_transition, "destroy-me",
|
|
G_CALLBACK (_destroy_auto_transition_cb), timeline);
|
|
|
|
timeline->priv->auto_transitions =
|
|
g_list_prepend (timeline->priv->auto_transitions, auto_transition);
|
|
|
|
return auto_transition;
|
|
}
|
|
|
|
GESAutoTransition *
|
|
ges_timeline_find_auto_transition (GESTimeline * timeline,
|
|
GESTrackElement * prev, GESTrackElement * next,
|
|
GstClockTime transition_duration)
|
|
{
|
|
GList *tmp;
|
|
|
|
for (tmp = timeline->priv->auto_transitions; tmp; tmp = tmp->next) {
|
|
GESAutoTransition *auto_trans = (GESAutoTransition *) tmp->data;
|
|
|
|
/* We already have a transition linked to one of the elements we want to
|
|
* find a transition for */
|
|
if (auto_trans->previous_source == prev || auto_trans->next_source == next) {
|
|
if (auto_trans->previous_source != prev
|
|
|| auto_trans->next_source != next) {
|
|
GST_ERROR_OBJECT (timeline, "Failed creating auto transition, "
|
|
" trying to have 3 clips overlapping, rolling back");
|
|
}
|
|
|
|
return auto_trans;
|
|
}
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
static GESAutoTransition *
|
|
_create_auto_transition_from_transitions (GESTimeline * timeline,
|
|
GESTrackElement * prev, GESTrackElement * next,
|
|
GstClockTime transition_duration)
|
|
{
|
|
GList *tmp, *elements;
|
|
GESLayer *layer;
|
|
guint32 layer_prio = GES_TIMELINE_ELEMENT_LAYER_PRIORITY (prev);
|
|
GESTrack *track;
|
|
GESAutoTransition *auto_transition =
|
|
ges_timeline_find_auto_transition (timeline, prev, next,
|
|
transition_duration);
|
|
|
|
if (auto_transition)
|
|
return auto_transition;
|
|
|
|
layer = ges_timeline_get_layer (timeline, layer_prio);
|
|
track = ges_track_element_get_track (prev);
|
|
elements = ges_track_get_elements (track);
|
|
for (tmp = elements; tmp; tmp = tmp->next) {
|
|
GESTrackElement *maybe_transition = tmp->data;
|
|
|
|
if (ges_timeline_element_get_layer_priority (tmp->data) != layer_prio)
|
|
continue;
|
|
|
|
if (_START (maybe_transition) > _START (next))
|
|
break;
|
|
else if (_START (maybe_transition) != _START (next) ||
|
|
_DURATION (maybe_transition) != transition_duration)
|
|
continue;
|
|
else if (GES_IS_TRANSITION (maybe_transition)) {
|
|
/* Use that transition */
|
|
/* TODO We should make sure that the transition contains only
|
|
* TrackElement-s in @track and if it is not the case properly unlink the
|
|
* object to use it */
|
|
auto_transition = ges_timeline_create_transition (timeline, prev, next,
|
|
GES_CLIP (GES_TIMELINE_ELEMENT_PARENT (maybe_transition)), layer,
|
|
_START (next), transition_duration);
|
|
|
|
break;
|
|
}
|
|
}
|
|
gst_object_unref (layer);
|
|
g_list_free_full (elements, gst_object_unref);
|
|
|
|
return auto_transition;
|
|
}
|
|
|
|
void
|
|
ges_timeline_emit_snapping (GESTimeline * timeline, GESTimelineElement * elem1,
|
|
GESTimelineElement * elem2, GstClockTime snap_time)
|
|
{
|
|
GESTimelinePrivate *priv = timeline->priv;
|
|
GstClockTime last_snap_ts = timeline->priv->last_snap_ts;
|
|
|
|
if (!GST_CLOCK_TIME_IS_VALID (snap_time)) {
|
|
if (priv->last_snaped1 != NULL && priv->last_snaped2 != NULL) {
|
|
g_signal_emit (timeline, ges_timeline_signals[SNAPING_ENDED], 0,
|
|
priv->last_snaped1, priv->last_snaped2, last_snap_ts);
|
|
priv->last_snaped1 = NULL;
|
|
priv->last_snaped2 = NULL;
|
|
priv->last_snap_ts = GST_CLOCK_TIME_NONE;
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
g_assert (elem1 != elem2);
|
|
if (GES_IS_CLIP (elem1)) {
|
|
g_assert (GES_CONTAINER_CHILDREN (elem1));
|
|
elem1 = GES_CONTAINER_CHILDREN (elem1)->data;
|
|
}
|
|
|
|
if (GES_IS_CLIP (elem2)) {
|
|
g_assert (GES_CONTAINER_CHILDREN (elem2));
|
|
elem2 = GES_CONTAINER_CHILDREN (elem2)->data;
|
|
}
|
|
|
|
if (last_snap_ts != snap_time) {
|
|
g_signal_emit (timeline, ges_timeline_signals[SNAPING_ENDED], 0,
|
|
priv->last_snaped1, priv->last_snaped2, (last_snap_ts));
|
|
|
|
/* We want the snap start signal to be emited anyway */
|
|
timeline->priv->last_snap_ts = GST_CLOCK_TIME_NONE;
|
|
}
|
|
|
|
if (!GST_CLOCK_TIME_IS_VALID (timeline->priv->last_snap_ts)) {
|
|
priv->last_snaped1 = (GESTrackElement *) elem1;
|
|
priv->last_snaped2 = (GESTrackElement *) elem2;
|
|
timeline->priv->last_snap_ts = snap_time;
|
|
|
|
g_signal_emit (timeline, ges_timeline_signals[SNAPING_STARTED], 0,
|
|
elem1, elem2, snap_time);
|
|
}
|
|
|
|
}
|
|
|
|
gboolean
|
|
ges_timeline_trim_object_simple (GESTimeline * timeline,
|
|
GESTimelineElement * element, guint32 new_layer_priority,
|
|
GList * layers, GESEdge edge, guint64 position, gboolean snapping)
|
|
{
|
|
|
|
return timeline_trim_object (timeline, element, new_layer_priority, layers,
|
|
edge, position);
|
|
}
|
|
|
|
gboolean
|
|
timeline_ripple_object (GESTimeline * timeline, GESTimelineElement * obj,
|
|
gint new_layer_priority, GList * layers, GESEdge edge, guint64 position)
|
|
{
|
|
gboolean res = TRUE;
|
|
guint64 new_duration;
|
|
GstClockTimeDiff diff;
|
|
|
|
switch (edge) {
|
|
case GES_EDGE_NONE:
|
|
GST_DEBUG ("Simply rippling");
|
|
diff = GST_CLOCK_DIFF (position, _START (obj));
|
|
|
|
timeline->priv->needs_transitions_update = FALSE;
|
|
res = timeline_tree_ripple (timeline->priv->tree,
|
|
(gint64) GES_TIMELINE_ELEMENT_LAYER_PRIORITY (obj) -
|
|
(gint64) new_layer_priority, diff, obj,
|
|
GES_EDGE_NONE, timeline->priv->snapping_distance);
|
|
timeline->priv->needs_transitions_update = TRUE;
|
|
|
|
break;
|
|
case GES_EDGE_END:
|
|
GST_DEBUG ("Rippling end");
|
|
|
|
timeline->priv->needs_transitions_update = FALSE;
|
|
new_duration =
|
|
CLAMP (position - obj->start, 0, obj->maxduration - obj->inpoint);
|
|
res =
|
|
timeline_tree_ripple (timeline->priv->tree,
|
|
(gint64) GES_TIMELINE_ELEMENT_LAYER_PRIORITY (obj) -
|
|
(gint64) new_layer_priority,
|
|
_DURATION (obj) - new_duration, obj,
|
|
GES_EDGE_END, timeline->priv->snapping_distance);
|
|
timeline->priv->needs_transitions_update = TRUE;
|
|
|
|
GST_DEBUG ("Done Rippling end");
|
|
break;
|
|
case GES_EDGE_START:
|
|
GST_INFO ("Ripple start doesn't make sense, trimming instead");
|
|
if (!timeline_trim_object (timeline, obj, -1, layers, edge, position))
|
|
goto error;
|
|
break;
|
|
default:
|
|
GST_DEBUG ("Can not ripple edge: %i", edge);
|
|
|
|
break;
|
|
}
|
|
|
|
return res;
|
|
|
|
error:
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
gboolean
|
|
timeline_slide_object (GESTimeline * timeline, GESTrackElement * obj,
|
|
GList * layers, GESEdge edge, guint64 position)
|
|
{
|
|
|
|
/* FIXME implement me! */
|
|
GST_FIXME_OBJECT (timeline, "Slide mode editing not implemented yet");
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
static gboolean
|
|
_trim_transition (GESTimeline * timeline, GESTimelineElement * element,
|
|
GESEdge edge, GstClockTime position)
|
|
{
|
|
GList *tmp;
|
|
GESLayer *layer = ges_timeline_get_layer (timeline,
|
|
GES_TIMELINE_ELEMENT_LAYER_PRIORITY (element));
|
|
|
|
if (!ges_layer_get_auto_transition (layer))
|
|
goto fail;
|
|
|
|
gst_object_unref (layer);
|
|
for (tmp = timeline->priv->auto_transitions; tmp; tmp = tmp->next) {
|
|
GESAutoTransition *auto_transition = tmp->data;
|
|
|
|
if (GES_TIMELINE_ELEMENT (auto_transition->transition) == element ||
|
|
GES_TIMELINE_ELEMENT (auto_transition->transition_clip) == element) {
|
|
/* Trimming an auto transition means trimming its neighboors */
|
|
if (!auto_transition->positioning) {
|
|
if (edge == GES_EDGE_END) {
|
|
ges_container_edit (GES_CONTAINER (auto_transition->previous_clip),
|
|
NULL, -1, GES_EDIT_MODE_TRIM, GES_EDGE_END, position);
|
|
} else {
|
|
ges_container_edit (GES_CONTAINER (auto_transition->next_clip),
|
|
NULL, -1, GES_EDIT_MODE_TRIM, GES_EDGE_START, position);
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
return FALSE;
|
|
}
|
|
}
|
|
|
|
return FALSE;
|
|
|
|
fail:
|
|
gst_object_unref (layer);
|
|
return FALSE;
|
|
}
|
|
|
|
|
|
gboolean
|
|
timeline_trim_object (GESTimeline * timeline, GESTimelineElement * object,
|
|
guint32 new_layer_priority, GList * layers, GESEdge edge, guint64 position)
|
|
{
|
|
if ((GES_IS_TRANSITION (object) || GES_IS_TRANSITION_CLIP (object)) &&
|
|
!ELEMENT_FLAG_IS_SET (object, GES_TIMELINE_ELEMENT_SET_SIMPLE)) {
|
|
return _trim_transition (timeline, object, edge, position);
|
|
}
|
|
|
|
return timeline_tree_trim (timeline->priv->tree,
|
|
GES_TIMELINE_ELEMENT (object), new_layer_priority > 0 ? (gint64)
|
|
ges_timeline_element_get_layer_priority (GES_TIMELINE_ELEMENT (object)) -
|
|
new_layer_priority : 0, edge == GES_EDGE_END ? GST_CLOCK_DIFF (position,
|
|
_START (object) + _DURATION (object)) : GST_CLOCK_DIFF (position,
|
|
GES_TIMELINE_ELEMENT_START (object)), edge,
|
|
timeline->priv->snapping_distance);
|
|
}
|
|
|
|
gboolean
|
|
timeline_roll_object (GESTimeline * timeline, GESTimelineElement * element,
|
|
GList * layers, GESEdge edge, guint64 position)
|
|
{
|
|
return timeline_tree_roll (timeline->priv->tree,
|
|
element,
|
|
(edge == GES_EDGE_END) ?
|
|
GST_CLOCK_DIFF (position, _END (element)) :
|
|
GST_CLOCK_DIFF (position, _START (element)),
|
|
edge, timeline->priv->snapping_distance);
|
|
}
|
|
|
|
gboolean
|
|
timeline_move_object (GESTimeline * timeline, GESTimelineElement * object,
|
|
guint32 new_layer_priority, GList * layers, GESEdge edge, guint64 position)
|
|
{
|
|
gboolean ret = FALSE;
|
|
GstClockTimeDiff offset = edge == GES_EDGE_END ?
|
|
GST_CLOCK_DIFF (position, _START (object) + _DURATION (object)) :
|
|
GST_CLOCK_DIFF (position, GES_TIMELINE_ELEMENT_START (object));
|
|
|
|
ret = timeline_tree_move (timeline->priv->tree,
|
|
GES_TIMELINE_ELEMENT (object), new_layer_priority < 0 ? 0 : (gint64)
|
|
ges_timeline_element_get_layer_priority (GES_TIMELINE_ELEMENT (object)) -
|
|
new_layer_priority, offset, edge, timeline->priv->snapping_distance);
|
|
|
|
return ret;
|
|
}
|
|
|
|
gboolean
|
|
ges_timeline_move_object_simple (GESTimeline * timeline,
|
|
GESTimelineElement * element, GList * layers, GESEdge edge,
|
|
guint64 position)
|
|
{
|
|
return timeline_move_object (timeline, element,
|
|
ges_timeline_element_get_layer_priority (element), NULL, edge, position);
|
|
}
|
|
|
|
void
|
|
timeline_add_group (GESTimeline * timeline, GESGroup * group)
|
|
{
|
|
GST_DEBUG_OBJECT (timeline, "Adding group %" GST_PTR_FORMAT, group);
|
|
|
|
timeline->priv->groups = g_list_prepend (timeline->priv->groups,
|
|
gst_object_ref_sink (group));
|
|
|
|
ges_timeline_element_set_timeline (GES_TIMELINE_ELEMENT (group), timeline);
|
|
}
|
|
|
|
void
|
|
timeline_update_transition (GESTimeline * timeline)
|
|
{
|
|
GList *tmp, *auto_transs;
|
|
|
|
auto_transs = g_list_copy (timeline->priv->auto_transitions);
|
|
for (tmp = auto_transs; tmp; tmp = tmp->next)
|
|
ges_auto_transition_update (tmp->data);
|
|
g_list_free (auto_transs);
|
|
}
|
|
|
|
/**
|
|
* timeline_emit_group_added:
|
|
* @timeline: a #GESTimeline
|
|
* @group: group that was added
|
|
*
|
|
* Emit group-added signal.
|
|
*/
|
|
void
|
|
timeline_emit_group_added (GESTimeline * timeline, GESGroup * group)
|
|
{
|
|
g_signal_emit (timeline, ges_timeline_signals[GROUP_ADDED], 0, group);
|
|
}
|
|
|
|
/**
|
|
* timeline_emit_group_removed:
|
|
* @timeline: a #GESTimeline
|
|
* @group: group that was removed
|
|
*
|
|
* Emit group-removed signal.
|
|
*/
|
|
void
|
|
timeline_emit_group_removed (GESTimeline * timeline, GESGroup * group,
|
|
GPtrArray * array)
|
|
{
|
|
g_signal_emit (timeline, ges_timeline_signals[GROUP_REMOVED], 0, group,
|
|
array);
|
|
}
|
|
|
|
void
|
|
timeline_remove_group (GESTimeline * timeline, GESGroup * group)
|
|
{
|
|
GST_DEBUG_OBJECT (timeline, "Removing group %" GST_PTR_FORMAT, group);
|
|
|
|
timeline->priv->groups = g_list_remove (timeline->priv->groups, group);
|
|
|
|
ges_timeline_element_set_timeline (GES_TIMELINE_ELEMENT (group), NULL);
|
|
gst_object_unref (group);
|
|
}
|
|
|
|
static GPtrArray *
|
|
select_tracks_for_object_default (GESTimeline * timeline,
|
|
GESClip * clip, GESTrackElement * tr_object, gpointer user_data)
|
|
{
|
|
GPtrArray *result;
|
|
GList *tmp;
|
|
|
|
result = g_ptr_array_new ();
|
|
|
|
for (tmp = timeline->tracks; tmp; tmp = tmp->next) {
|
|
GESTrack *track = GES_TRACK (tmp->data);
|
|
|
|
if ((track->type & ges_track_element_get_track_type (tr_object))) {
|
|
gst_object_ref (track);
|
|
g_ptr_array_add (result, track);
|
|
}
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
static void
|
|
add_object_to_tracks (GESTimeline * timeline, GESClip * clip, GESTrack * track)
|
|
{
|
|
gint i;
|
|
GList *tmp, *list;
|
|
GESTrackType types, visited_type = GES_TRACK_TYPE_UNKNOWN;
|
|
|
|
GST_DEBUG_OBJECT (timeline, "Creating %" GST_PTR_FORMAT
|
|
" trackelements and adding them to our tracks", clip);
|
|
|
|
types = ges_clip_get_supported_formats (clip);
|
|
if (track) {
|
|
if ((types & track->type) == 0)
|
|
return;
|
|
types = track->type;
|
|
}
|
|
|
|
for (i = 0, tmp = timeline->tracks; tmp; tmp = tmp->next, i++) {
|
|
GESTrack *track = GES_TRACK (tmp->data);
|
|
|
|
if (((track->type & types) == 0 || (track->type & visited_type)))
|
|
continue;
|
|
|
|
list = ges_clip_create_track_elements (clip, track->type);
|
|
g_list_free (list);
|
|
}
|
|
}
|
|
|
|
static void
|
|
layer_auto_transition_changed_cb (GESLayer * layer,
|
|
GParamSpec * arg G_GNUC_UNUSED, GESTimeline * timeline)
|
|
{
|
|
GList *tmp, *clips;
|
|
|
|
timeline_tree_create_transitions (timeline->priv->tree,
|
|
_create_auto_transition_from_transitions);
|
|
clips = ges_layer_get_clips (layer);
|
|
for (tmp = clips; tmp; tmp = tmp->next) {
|
|
if (GES_IS_TRANSITION_CLIP (tmp->data)) {
|
|
GList *tmpautotrans;
|
|
gboolean found = FALSE;
|
|
|
|
for (tmpautotrans = timeline->priv->auto_transitions; tmpautotrans;
|
|
tmpautotrans = tmpautotrans->next) {
|
|
if (GES_AUTO_TRANSITION (tmpautotrans->data)->transition_clip ==
|
|
tmp->data) {
|
|
found = TRUE;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (!found) {
|
|
GST_ERROR_OBJECT (timeline,
|
|
"Transition %s could not be wrapped into an auto transition"
|
|
" REMOVING it", GES_TIMELINE_ELEMENT_NAME (tmp->data));
|
|
|
|
ges_layer_remove_clip (layer, tmp->data);
|
|
}
|
|
}
|
|
}
|
|
g_list_free_full (clips, gst_object_unref);
|
|
}
|
|
|
|
static void
|
|
clip_track_element_added_cb (GESClip * clip,
|
|
GESTrackElement * track_element, GESTimeline * timeline)
|
|
{
|
|
guint i;
|
|
GESTrack *track;
|
|
gboolean is_source;
|
|
GPtrArray *tracks = NULL;
|
|
GESTrackElement *existing_src = NULL;
|
|
|
|
if (timeline->priv->ignore_track_element_added == clip) {
|
|
GST_DEBUG_OBJECT (timeline, "Ignoring element added (%" GST_PTR_FORMAT
|
|
" in %" GST_PTR_FORMAT, track_element, clip);
|
|
|
|
return;
|
|
}
|
|
|
|
if (ges_track_element_get_track (track_element)) {
|
|
GST_WARNING_OBJECT (track_element, "Already in a track");
|
|
|
|
return;
|
|
}
|
|
|
|
g_signal_emit (G_OBJECT (timeline),
|
|
ges_timeline_signals[SELECT_TRACKS_FOR_OBJECT], 0, clip, track_element,
|
|
&tracks);
|
|
|
|
if (!tracks || tracks->len == 0) {
|
|
GST_WARNING_OBJECT (timeline, "Got no Track to add %p (type %s), removing"
|
|
" from clip (stopping 'child-added' signal emission).",
|
|
track_element, ges_track_type_name (ges_track_element_get_track_type
|
|
(track_element)));
|
|
|
|
if (tracks)
|
|
g_ptr_array_unref (tracks);
|
|
|
|
g_signal_stop_emission_by_name (clip, "child-added");
|
|
ges_container_remove (GES_CONTAINER (clip),
|
|
GES_TIMELINE_ELEMENT (track_element));
|
|
|
|
return;
|
|
}
|
|
|
|
/* We add the current element to the first track */
|
|
track = g_ptr_array_index (tracks, 0);
|
|
|
|
is_source = g_type_is_a (G_OBJECT_TYPE (track_element), GES_TYPE_SOURCE);
|
|
if (is_source)
|
|
existing_src = ges_clip_find_track_element (clip, track, GES_TYPE_SOURCE);
|
|
|
|
if (existing_src == NULL) {
|
|
if (!ges_track_add_element (track, track_element)) {
|
|
GST_WARNING_OBJECT (clip, "Failed to add track element to track");
|
|
ges_container_remove (GES_CONTAINER (clip),
|
|
GES_TIMELINE_ELEMENT (track_element));
|
|
g_ptr_array_unref (tracks);
|
|
return;
|
|
}
|
|
} else {
|
|
GST_INFO_OBJECT (clip, "Already had a Source Element in %" GST_PTR_FORMAT
|
|
" of type %s, removing new one. (stopping 'child-added' emission)",
|
|
track, G_OBJECT_TYPE_NAME (track_element));
|
|
g_signal_stop_emission_by_name (clip, "child-added");
|
|
ges_container_remove (GES_CONTAINER (clip),
|
|
GES_TIMELINE_ELEMENT (track_element));
|
|
}
|
|
gst_object_unref (track);
|
|
g_clear_object (&existing_src);
|
|
|
|
/* And create copies to add to other tracks */
|
|
timeline->priv->ignore_track_element_added = clip;
|
|
for (i = 1; i < tracks->len; i++) {
|
|
GESTrack *track;
|
|
GESTrackElement *track_element_copy;
|
|
|
|
track = g_ptr_array_index (tracks, i);
|
|
if (is_source)
|
|
existing_src = ges_clip_find_track_element (clip, track, GES_TYPE_SOURCE);
|
|
if (existing_src == NULL) {
|
|
ges_container_remove (GES_CONTAINER (clip),
|
|
GES_TIMELINE_ELEMENT (track_element));
|
|
gst_object_unref (track);
|
|
g_ptr_array_unref (tracks);
|
|
continue;
|
|
} else {
|
|
GST_INFO_OBJECT (clip, "Already had a Source Element in %" GST_PTR_FORMAT
|
|
" of type %s, removing new one. (stopping 'child-added' emission)",
|
|
track, G_OBJECT_TYPE_NAME (track_element));
|
|
g_signal_stop_emission_by_name (clip, "child-added");
|
|
ges_container_remove (GES_CONTAINER (clip),
|
|
GES_TIMELINE_ELEMENT (track_element));
|
|
}
|
|
g_clear_object (&existing_src);
|
|
|
|
track_element_copy =
|
|
GES_TRACK_ELEMENT (ges_timeline_element_copy (GES_TIMELINE_ELEMENT
|
|
(track_element), TRUE));
|
|
|
|
GST_LOG_OBJECT (timeline, "Trying to add %p to track %p",
|
|
track_element_copy, track);
|
|
|
|
if (!ges_container_add (GES_CONTAINER (clip),
|
|
GES_TIMELINE_ELEMENT (track_element_copy))) {
|
|
GST_WARNING_OBJECT (clip, "Failed to add track element to clip");
|
|
gst_object_unref (track_element_copy);
|
|
g_ptr_array_unref (tracks);
|
|
return;
|
|
}
|
|
|
|
if (!ges_track_add_element (track, track_element_copy)) {
|
|
GST_WARNING_OBJECT (clip, "Failed to add track element to track");
|
|
ges_container_remove (GES_CONTAINER (clip),
|
|
GES_TIMELINE_ELEMENT (track_element_copy));
|
|
gst_object_unref (track_element_copy);
|
|
g_ptr_array_unref (tracks);
|
|
return;
|
|
}
|
|
|
|
gst_object_unref (track);
|
|
}
|
|
timeline->priv->ignore_track_element_added = NULL;
|
|
g_ptr_array_unref (tracks);
|
|
if (GES_IS_SOURCE (track_element))
|
|
timeline_tree_create_transitions (timeline->priv->tree,
|
|
ges_timeline_find_auto_transition);
|
|
}
|
|
|
|
static void
|
|
clip_track_element_removed_cb (GESClip * clip,
|
|
GESTrackElement * track_element, GESTimeline * timeline)
|
|
{
|
|
GESTrack *track = ges_track_element_get_track (track_element);
|
|
|
|
if (track)
|
|
ges_track_remove_element (track, track_element);
|
|
}
|
|
|
|
static void
|
|
layer_object_added_cb (GESLayer * layer, GESClip * clip, GESTimeline * timeline)
|
|
{
|
|
GESProject *project;
|
|
|
|
/* We make sure not to be connected twice */
|
|
g_signal_handlers_disconnect_by_func (clip, clip_track_element_added_cb,
|
|
timeline);
|
|
g_signal_handlers_disconnect_by_func (clip, clip_track_element_removed_cb,
|
|
timeline);
|
|
|
|
/* And we connect to the object */
|
|
g_signal_connect (clip, "child-added",
|
|
G_CALLBACK (clip_track_element_added_cb), timeline);
|
|
g_signal_connect (clip, "child-removed",
|
|
G_CALLBACK (clip_track_element_removed_cb), timeline);
|
|
|
|
if (ges_clip_is_moving_from_layer (clip)) {
|
|
GST_DEBUG ("Clip %p moving from one layer to another, not creating "
|
|
"TrackElement", clip);
|
|
timeline_tree_create_transitions (timeline->priv->tree,
|
|
ges_timeline_find_auto_transition);
|
|
return;
|
|
}
|
|
|
|
add_object_to_tracks (timeline, clip, NULL);
|
|
|
|
GST_DEBUG ("Making sure that the asset is in our project");
|
|
project =
|
|
GES_PROJECT (ges_extractable_get_asset (GES_EXTRACTABLE (timeline)));
|
|
ges_project_add_asset (project,
|
|
ges_extractable_get_asset (GES_EXTRACTABLE (clip)));
|
|
|
|
GST_DEBUG ("Done");
|
|
}
|
|
|
|
static void
|
|
layer_priority_changed_cb (GESLayer * layer,
|
|
GParamSpec * arg G_GNUC_UNUSED, GESTimeline * timeline)
|
|
{
|
|
if (timeline->priv->resyncing_layers)
|
|
return;
|
|
|
|
timeline->layers = g_list_sort (timeline->layers, (GCompareFunc)
|
|
sort_layers);
|
|
}
|
|
|
|
static void
|
|
layer_object_removed_cb (GESLayer * layer, GESClip * clip,
|
|
GESTimeline * timeline)
|
|
{
|
|
GList *trackelements, *tmp;
|
|
|
|
if (ges_clip_is_moving_from_layer (clip)) {
|
|
GST_DEBUG ("Clip %p is moving from a layer to another, not doing"
|
|
" anything on it", clip);
|
|
return;
|
|
}
|
|
|
|
GST_DEBUG ("Clip %p removed from layer %p", clip, layer);
|
|
|
|
/* Go over the clip's track element and figure out which one belongs to
|
|
* the list of tracks we control */
|
|
|
|
trackelements = ges_container_get_children (GES_CONTAINER (clip), FALSE);
|
|
for (tmp = trackelements; tmp; tmp = tmp->next) {
|
|
GESTrackElement *track_element = (GESTrackElement *) tmp->data;
|
|
GESTrack *track = ges_track_element_get_track (track_element);
|
|
|
|
if (!track)
|
|
continue;
|
|
|
|
GST_DEBUG_OBJECT (timeline, "Trying to remove TrackElement %p",
|
|
track_element);
|
|
|
|
/* FIXME Check if we should actually check that we control the
|
|
* track in the new management of TrackElement context */
|
|
LOCK_DYN (timeline);
|
|
if (G_LIKELY (g_list_find_custom (timeline->priv->priv_tracks, track,
|
|
(GCompareFunc) custom_find_track) || track == NULL)) {
|
|
GST_DEBUG ("Belongs to one of the tracks we control");
|
|
|
|
ges_track_remove_element (track, track_element);
|
|
}
|
|
UNLOCK_DYN (timeline);
|
|
}
|
|
g_signal_handlers_disconnect_by_func (clip, clip_track_element_added_cb,
|
|
timeline);
|
|
g_signal_handlers_disconnect_by_func (clip, clip_track_element_removed_cb,
|
|
timeline);
|
|
|
|
g_list_free_full (trackelements, gst_object_unref);
|
|
|
|
GST_DEBUG ("Done");
|
|
}
|
|
|
|
static gboolean
|
|
update_stream_object (TrackPrivate * tr_priv)
|
|
{
|
|
gboolean res = FALSE;
|
|
GstStreamType type = GST_STREAM_TYPE_UNKNOWN;
|
|
gchar *stream_id;
|
|
|
|
g_object_get (tr_priv->track, "id", &stream_id, NULL);
|
|
if (tr_priv->track->type == GES_TRACK_TYPE_VIDEO)
|
|
type = GST_STREAM_TYPE_VIDEO;
|
|
if (tr_priv->track->type == GES_TRACK_TYPE_AUDIO)
|
|
type = GST_STREAM_TYPE_AUDIO;
|
|
|
|
if (!tr_priv->stream ||
|
|
g_strcmp0 (stream_id, gst_stream_get_stream_id (tr_priv->stream))) {
|
|
res = TRUE;
|
|
gst_object_replace ((GstObject **) & tr_priv->stream,
|
|
(GstObject *) gst_stream_new (stream_id,
|
|
(GstCaps *) ges_track_get_caps (tr_priv->track),
|
|
type, GST_STREAM_FLAG_NONE)
|
|
);
|
|
}
|
|
|
|
g_free (stream_id);
|
|
|
|
return res;
|
|
}
|
|
|
|
static void
|
|
trackelement_start_changed_cb (GESTrackElement * child,
|
|
GParamSpec * arg G_GNUC_UNUSED, GESTimeline * timeline)
|
|
{
|
|
timeline_update_duration (timeline);
|
|
}
|
|
|
|
static void
|
|
track_element_added_cb (GESTrack * track, GESTrackElement * track_element,
|
|
GESTimeline * timeline)
|
|
{
|
|
/* Auto transition should be updated before we receive the signal */
|
|
g_signal_connect_after (GES_TRACK_ELEMENT (track_element), "notify::start",
|
|
G_CALLBACK (trackelement_start_changed_cb), timeline);
|
|
}
|
|
|
|
static void
|
|
track_element_removed_cb (GESTrack * track,
|
|
GESTrackElement * track_element, GESTimeline * timeline)
|
|
{
|
|
/* Disconnect all signal handlers */
|
|
g_signal_handlers_disconnect_by_func (track_element,
|
|
trackelement_start_changed_cb, timeline);
|
|
}
|
|
|
|
static GstPadProbeReturn
|
|
_pad_probe_cb (GstPad * mixer_pad, GstPadProbeInfo * info,
|
|
TrackPrivate * tr_priv)
|
|
{
|
|
GstEvent *event = GST_PAD_PROBE_INFO_EVENT (info);
|
|
GESTimeline *timeline = tr_priv->timeline;
|
|
|
|
if (GST_EVENT_TYPE (event) == GST_EVENT_STREAM_START) {
|
|
LOCK_DYN (timeline);
|
|
if (timeline->priv->stream_start_group_id == -1) {
|
|
if (!gst_event_parse_group_id (event,
|
|
&timeline->priv->stream_start_group_id))
|
|
timeline->priv->stream_start_group_id = gst_util_group_id_next ();
|
|
}
|
|
|
|
gst_event_unref (event);
|
|
event = info->data =
|
|
gst_event_new_stream_start (gst_stream_get_stream_id (tr_priv->stream));
|
|
gst_event_set_stream (event, tr_priv->stream);
|
|
gst_event_set_group_id (event, timeline->priv->stream_start_group_id);
|
|
UNLOCK_DYN (timeline);
|
|
|
|
return GST_PAD_PROBE_REMOVE;
|
|
}
|
|
|
|
return GST_PAD_PROBE_OK;
|
|
}
|
|
|
|
static void
|
|
_ghost_track_srcpad (TrackPrivate * tr_priv)
|
|
{
|
|
GstPad *pad;
|
|
gchar *padname;
|
|
gboolean no_more;
|
|
GList *tmp;
|
|
GESTrack *track = tr_priv->track;
|
|
|
|
pad = gst_element_get_static_pad (GST_ELEMENT (track), "src");
|
|
|
|
GST_DEBUG ("track:%p, pad:%s:%s", track, GST_DEBUG_PAD_NAME (pad));
|
|
|
|
/* Remember the pad */
|
|
LOCK_DYN (tr_priv->timeline);
|
|
GST_OBJECT_LOCK (track);
|
|
tr_priv->pad = pad;
|
|
|
|
no_more = TRUE;
|
|
for (tmp = tr_priv->timeline->priv->priv_tracks; tmp; tmp = g_list_next (tmp)) {
|
|
TrackPrivate *tr_priv = (TrackPrivate *) tmp->data;
|
|
|
|
if (!tr_priv->pad) {
|
|
GST_LOG ("Found track without pad %p", tr_priv->track);
|
|
no_more = FALSE;
|
|
}
|
|
}
|
|
GST_OBJECT_UNLOCK (track);
|
|
|
|
/* ghost it ! */
|
|
GST_DEBUG ("Ghosting pad and adding it to ourself");
|
|
padname = g_strdup_printf ("track_%p_src", track);
|
|
tr_priv->ghostpad = gst_ghost_pad_new (padname, pad);
|
|
g_free (padname);
|
|
gst_pad_set_active (tr_priv->ghostpad, TRUE);
|
|
gst_element_add_pad (GST_ELEMENT (tr_priv->timeline), tr_priv->ghostpad);
|
|
|
|
if (no_more) {
|
|
GST_DEBUG ("Signaling no-more-pads");
|
|
gst_element_no_more_pads (GST_ELEMENT (tr_priv->timeline));
|
|
}
|
|
|
|
tr_priv->probe_id = gst_pad_add_probe (pad,
|
|
GST_PAD_PROBE_TYPE_EVENT_DOWNSTREAM,
|
|
(GstPadProbeCallback) _pad_probe_cb, tr_priv, NULL);
|
|
|
|
UNLOCK_DYN (tr_priv->timeline);
|
|
}
|
|
|
|
gboolean
|
|
timeline_add_element (GESTimeline * timeline, GESTimelineElement * element)
|
|
{
|
|
GESTimelineElement *same_name =
|
|
g_hash_table_lookup (timeline->priv->all_elements,
|
|
element->name);
|
|
|
|
GST_DEBUG_OBJECT (timeline, "Adding element: %s", element->name);
|
|
if (same_name) {
|
|
GST_ERROR_OBJECT (timeline, "%s Already in the timeline %" GST_PTR_FORMAT,
|
|
element->name, same_name);
|
|
return FALSE;
|
|
}
|
|
|
|
g_hash_table_insert (timeline->priv->all_elements,
|
|
ges_timeline_element_get_name (element), gst_object_ref (element));
|
|
|
|
timeline_tree_track_element (timeline->priv->tree, element);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
gboolean
|
|
timeline_remove_element (GESTimeline * timeline, GESTimelineElement * element)
|
|
{
|
|
if (g_hash_table_remove (timeline->priv->all_elements, element->name)) {
|
|
timeline_tree_stop_tracking_element (timeline->priv->tree, element);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
void
|
|
timeline_fill_gaps (GESTimeline * timeline)
|
|
{
|
|
GList *tmp;
|
|
|
|
for (tmp = timeline->tracks; tmp; tmp = tmp->next) {
|
|
track_resort_and_fill_gaps (tmp->data);
|
|
}
|
|
}
|
|
|
|
GNode *
|
|
timeline_get_tree (GESTimeline * timeline)
|
|
{
|
|
return timeline->priv->tree;
|
|
}
|
|
|
|
/**** API *****/
|
|
/**
|
|
* ges_timeline_new:
|
|
*
|
|
* Creates a new empty #GESTimeline.
|
|
*
|
|
* Returns: (transfer floating): The new timeline.
|
|
*/
|
|
|
|
GESTimeline *
|
|
ges_timeline_new (void)
|
|
{
|
|
GESProject *project = ges_project_new (NULL);
|
|
GESExtractable *timeline = g_object_new (GES_TYPE_TIMELINE, NULL);
|
|
|
|
ges_extractable_set_asset (timeline, GES_ASSET (project));
|
|
gst_object_unref (project);
|
|
|
|
return GES_TIMELINE (timeline);
|
|
}
|
|
|
|
/**
|
|
* ges_timeline_new_from_uri:
|
|
* @uri: the URI to load from
|
|
* @error: (out) (allow-none): An error to be set in case something wrong happens or %NULL
|
|
*
|
|
* Creates a timeline from the given URI.
|
|
*
|
|
* Returns: (transfer floating) (nullable): A new timeline if the uri was loaded
|
|
* successfully, or %NULL if the uri could not be loaded.
|
|
*/
|
|
GESTimeline *
|
|
ges_timeline_new_from_uri (const gchar * uri, GError ** error)
|
|
{
|
|
GESTimeline *ret;
|
|
GESProject *project = ges_project_new (uri);
|
|
|
|
ret = GES_TIMELINE (ges_asset_extract (GES_ASSET (project), error));
|
|
gst_object_unref (project);
|
|
|
|
return ret;
|
|
}
|
|
|
|
/**
|
|
* ges_timeline_load_from_uri:
|
|
* @timeline: an empty #GESTimeline into which to load the formatter
|
|
* @uri: The URI to load from
|
|
* @error: (out) (allow-none): An error to be set in case something wrong happens or %NULL
|
|
*
|
|
* Loads the contents of URI into the given timeline.
|
|
*
|
|
* Returns: %TRUE if the timeline was loaded successfully, or %FALSE if the uri
|
|
* could not be loaded.
|
|
*/
|
|
gboolean
|
|
ges_timeline_load_from_uri (GESTimeline * timeline, const gchar * uri,
|
|
GError ** error)
|
|
{
|
|
GESProject *project;
|
|
gboolean ret = FALSE;
|
|
|
|
g_return_val_if_fail (GES_IS_TIMELINE (timeline), FALSE);
|
|
g_return_val_if_fail ((ges_extractable_get_asset (GES_EXTRACTABLE
|
|
(timeline)) == NULL), FALSE);
|
|
|
|
project = ges_project_new (uri);
|
|
ret = ges_project_load (project, timeline, error);
|
|
gst_object_unref (project);
|
|
|
|
return ret;
|
|
}
|
|
|
|
/**
|
|
* ges_timeline_save_to_uri:
|
|
* @timeline: a #GESTimeline
|
|
* @uri: The location to save to
|
|
* @formatter_asset: (allow-none): The formatter asset to use or %NULL. If %NULL,
|
|
* will try to save in the same format as the one from which the timeline as been loaded
|
|
* or default to the formatter with highest rank
|
|
* @overwrite: %TRUE to overwrite file if it exists
|
|
* @error: (out) (allow-none): An error to be set in case something wrong happens or %NULL
|
|
*
|
|
* Saves the timeline to the given location
|
|
*
|
|
* Returns: %TRUE if the timeline was successfully saved to the given location,
|
|
* else %FALSE.
|
|
*/
|
|
gboolean
|
|
ges_timeline_save_to_uri (GESTimeline * timeline, const gchar * uri,
|
|
GESAsset * formatter_asset, gboolean overwrite, GError ** error)
|
|
{
|
|
GESProject *project;
|
|
|
|
gboolean ret, created_proj = FALSE;
|
|
|
|
g_return_val_if_fail (GES_IS_TIMELINE (timeline), FALSE);
|
|
project =
|
|
GES_PROJECT (ges_extractable_get_asset (GES_EXTRACTABLE (timeline)));
|
|
|
|
if (project == NULL) {
|
|
project = ges_project_new (NULL);
|
|
created_proj = TRUE;
|
|
}
|
|
|
|
ret = ges_project_save (project, timeline, uri, formatter_asset, overwrite,
|
|
error);
|
|
|
|
if (created_proj)
|
|
gst_object_unref (project);
|
|
|
|
return ret;
|
|
}
|
|
|
|
/**
|
|
* ges_timeline_get_groups:
|
|
* @timeline: a #GESTimeline
|
|
*
|
|
* Get the list of #GESGroup present in the Timeline.
|
|
*
|
|
* Returns: (transfer none) (element-type GESGroup): the list of
|
|
* #GESGroup that contain clips present in the timeline's layers.
|
|
* Must not be changed.
|
|
*/
|
|
GList *
|
|
ges_timeline_get_groups (GESTimeline * timeline)
|
|
{
|
|
g_return_val_if_fail (GES_IS_TIMELINE (timeline), NULL);
|
|
CHECK_THREAD (timeline);
|
|
|
|
return timeline->priv->groups;
|
|
}
|
|
|
|
/**
|
|
* ges_timeline_append_layer:
|
|
* @timeline: a #GESTimeline
|
|
*
|
|
* Append a newly created #GESLayer to @timeline
|
|
* Note that you do not own any reference to the returned layer.
|
|
*
|
|
* Returns: (transfer none): The newly created #GESLayer, or the last (empty)
|
|
* #GESLayer of @timeline.
|
|
*/
|
|
GESLayer *
|
|
ges_timeline_append_layer (GESTimeline * timeline)
|
|
{
|
|
guint32 priority;
|
|
GESLayer *layer;
|
|
|
|
g_return_val_if_fail (GES_IS_TIMELINE (timeline), NULL);
|
|
CHECK_THREAD (timeline);
|
|
|
|
layer = ges_layer_new ();
|
|
priority = g_list_length (timeline->layers);
|
|
ges_layer_set_priority (layer, priority);
|
|
|
|
ges_timeline_add_layer (timeline, layer);
|
|
|
|
return layer;
|
|
}
|
|
|
|
/**
|
|
* ges_timeline_add_layer:
|
|
* @timeline: a #GESTimeline
|
|
* @layer: (transfer floating): the #GESLayer to add
|
|
*
|
|
* Add the layer to the timeline. The reference to the @layer will be stolen
|
|
* by the @timeline.
|
|
*
|
|
* Returns: %TRUE if the layer was properly added, else %FALSE.
|
|
*/
|
|
gboolean
|
|
ges_timeline_add_layer (GESTimeline * timeline, GESLayer * layer)
|
|
{
|
|
gboolean auto_transition;
|
|
GList *objects, *tmp;
|
|
|
|
g_return_val_if_fail (GES_IS_TIMELINE (timeline), FALSE);
|
|
g_return_val_if_fail (GES_IS_LAYER (layer), FALSE);
|
|
CHECK_THREAD (timeline);
|
|
|
|
GST_DEBUG ("timeline:%p, layer:%p", timeline, layer);
|
|
|
|
/* We can only add a layer that doesn't already belong to another timeline */
|
|
if (G_UNLIKELY (layer->timeline)) {
|
|
GST_WARNING ("Layer belongs to another timeline, can't add it");
|
|
gst_object_ref_sink (layer);
|
|
gst_object_unref (layer);
|
|
return FALSE;
|
|
}
|
|
|
|
/* Add to the list of layers, make sure we don't already control it */
|
|
if (G_UNLIKELY (g_list_find (timeline->layers, (gconstpointer) layer))) {
|
|
GST_WARNING ("Layer is already controlled by this timeline");
|
|
gst_object_ref_sink (layer);
|
|
gst_object_unref (layer);
|
|
return FALSE;
|
|
}
|
|
|
|
auto_transition = ges_layer_get_auto_transition (layer);
|
|
|
|
/* If the user doesn't explicitely set layer auto_transition, then set our */
|
|
if (!auto_transition) {
|
|
auto_transition = ges_timeline_get_auto_transition (timeline);
|
|
ges_layer_set_auto_transition (layer, auto_transition);
|
|
}
|
|
|
|
gst_object_ref_sink (layer);
|
|
timeline->layers = g_list_insert_sorted (timeline->layers, layer,
|
|
(GCompareFunc) sort_layers);
|
|
|
|
/* Inform the layer that it belongs to a new timeline */
|
|
ges_layer_set_timeline (layer, timeline);
|
|
|
|
/* Connect to 'clip-added'/'clip-removed' signal from the new layer */
|
|
g_signal_connect_after (layer, "clip-added",
|
|
G_CALLBACK (layer_object_added_cb), timeline);
|
|
g_signal_connect_after (layer, "clip-removed",
|
|
G_CALLBACK (layer_object_removed_cb), timeline);
|
|
g_signal_connect (layer, "notify::priority",
|
|
G_CALLBACK (layer_priority_changed_cb), timeline);
|
|
g_signal_connect (layer, "notify::auto-transition",
|
|
G_CALLBACK (layer_auto_transition_changed_cb), timeline);
|
|
|
|
GST_DEBUG ("Done adding layer, emitting 'layer-added' signal");
|
|
g_signal_emit (timeline, ges_timeline_signals[LAYER_ADDED], 0, layer);
|
|
|
|
/* add any existing clips to the timeline */
|
|
objects = ges_layer_get_clips (layer);
|
|
for (tmp = objects; tmp; tmp = tmp->next) {
|
|
layer_object_added_cb (layer, tmp->data, timeline);
|
|
gst_object_unref (tmp->data);
|
|
tmp->data = NULL;
|
|
}
|
|
g_list_free (objects);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
/**
|
|
* ges_timeline_remove_layer:
|
|
* @timeline: a #GESTimeline
|
|
* @layer: the #GESLayer to remove
|
|
*
|
|
* Removes the layer from the timeline. The reference that the @timeline holds on
|
|
* the layer will be dropped. If you wish to use the @layer after calling this
|
|
* method, you need to take a reference before calling.
|
|
*
|
|
* Returns: %TRUE if the layer was properly removed, else %FALSE.
|
|
*/
|
|
|
|
gboolean
|
|
ges_timeline_remove_layer (GESTimeline * timeline, GESLayer * layer)
|
|
{
|
|
GList *layer_objects, *tmp;
|
|
|
|
g_return_val_if_fail (GES_IS_TIMELINE (timeline), FALSE);
|
|
g_return_val_if_fail (GES_IS_LAYER (layer), FALSE);
|
|
CHECK_THREAD (timeline);
|
|
|
|
GST_DEBUG ("timeline:%p, layer:%p", timeline, layer);
|
|
|
|
if (G_UNLIKELY (!g_list_find (timeline->layers, layer))) {
|
|
GST_WARNING ("Layer doesn't belong to this timeline");
|
|
return FALSE;
|
|
}
|
|
|
|
/* remove objects from any private data structures */
|
|
|
|
layer_objects = ges_layer_get_clips (layer);
|
|
for (tmp = layer_objects; tmp; tmp = tmp->next) {
|
|
layer_object_removed_cb (layer, GES_CLIP (tmp->data), timeline);
|
|
gst_object_unref (G_OBJECT (tmp->data));
|
|
tmp->data = NULL;
|
|
}
|
|
g_list_free (layer_objects);
|
|
|
|
/* Disconnect signals */
|
|
GST_DEBUG ("Disconnecting signal callbacks");
|
|
g_signal_handlers_disconnect_by_func (layer, layer_object_added_cb, timeline);
|
|
g_signal_handlers_disconnect_by_func (layer, layer_object_removed_cb,
|
|
timeline);
|
|
g_signal_handlers_disconnect_by_func (layer, layer_priority_changed_cb,
|
|
timeline);
|
|
g_signal_handlers_disconnect_by_func (layer,
|
|
layer_auto_transition_changed_cb, timeline);
|
|
|
|
timeline->layers = g_list_remove (timeline->layers, layer);
|
|
ges_layer_set_timeline (layer, NULL);
|
|
|
|
g_signal_emit (timeline, ges_timeline_signals[LAYER_REMOVED], 0, layer);
|
|
|
|
gst_object_unref (layer);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
/**
|
|
* ges_timeline_add_track:
|
|
* @timeline: a #GESTimeline
|
|
* @track: (transfer full): the #GESTrack to add
|
|
*
|
|
* Add a track to the timeline. The reference to the track will be stolen by the
|
|
* pipeline.
|
|
*
|
|
* Returns: %TRUE if the track was properly added, else %FALSE.
|
|
*/
|
|
|
|
/* FIXME: create track elements for clips which have already been
|
|
* added to existing layers.
|
|
*/
|
|
|
|
gboolean
|
|
ges_timeline_add_track (GESTimeline * timeline, GESTrack * track)
|
|
{
|
|
TrackPrivate *tr_priv;
|
|
GList *tmp;
|
|
|
|
g_return_val_if_fail (GES_IS_TIMELINE (timeline), FALSE);
|
|
g_return_val_if_fail (GES_IS_TRACK (track), FALSE);
|
|
CHECK_THREAD (timeline);
|
|
|
|
GST_DEBUG ("timeline:%p, track:%p", timeline, track);
|
|
|
|
/* make sure we don't already control it */
|
|
if (G_UNLIKELY (g_list_find (timeline->tracks, (gconstpointer) track))) {
|
|
GST_WARNING ("Track is already controlled by this timeline");
|
|
return FALSE;
|
|
}
|
|
|
|
/* Add the track to ourself (as a GstBin)
|
|
* Reference is stolen ! */
|
|
if (G_UNLIKELY (!gst_bin_add (GST_BIN (timeline), GST_ELEMENT (track)))) {
|
|
GST_WARNING ("Couldn't add track to ourself (GST)");
|
|
return FALSE;
|
|
}
|
|
|
|
tr_priv = g_new0 (TrackPrivate, 1);
|
|
tr_priv->timeline = timeline;
|
|
tr_priv->track = track;
|
|
|
|
update_stream_object (tr_priv);
|
|
gst_stream_collection_add_stream (timeline->priv->stream_collection,
|
|
gst_object_ref (tr_priv->stream));
|
|
|
|
/* Add the track to the list of tracks we track */
|
|
LOCK_DYN (timeline);
|
|
timeline->priv->priv_tracks = g_list_append (timeline->priv->priv_tracks,
|
|
tr_priv);
|
|
UNLOCK_DYN (timeline);
|
|
timeline->tracks = g_list_append (timeline->tracks, track);
|
|
|
|
/* Inform the track that it's currently being used by ourself */
|
|
ges_track_set_timeline (track, timeline);
|
|
|
|
GST_DEBUG ("Done adding track, emitting 'track-added' signal");
|
|
|
|
_ghost_track_srcpad (tr_priv);
|
|
|
|
/* emit 'track-added' */
|
|
g_signal_emit (timeline, ges_timeline_signals[TRACK_ADDED], 0, track);
|
|
|
|
/* ensure that each existing clip has the opportunity to create a
|
|
* track element for this track*/
|
|
|
|
/* We connect to the object for the timeline editing mode management */
|
|
g_signal_connect (G_OBJECT (track), "track-element-added",
|
|
G_CALLBACK (track_element_added_cb), timeline);
|
|
g_signal_connect (G_OBJECT (track), "track-element-removed",
|
|
G_CALLBACK (track_element_removed_cb), timeline);
|
|
|
|
for (tmp = timeline->layers; tmp; tmp = tmp->next) {
|
|
GList *objects, *obj;
|
|
objects = ges_layer_get_clips (tmp->data);
|
|
|
|
for (obj = objects; obj; obj = obj->next) {
|
|
GESClip *clip = obj->data;
|
|
|
|
add_object_to_tracks (timeline, clip, track);
|
|
gst_object_unref (clip);
|
|
}
|
|
g_list_free (objects);
|
|
}
|
|
|
|
/* FIXME Check if we should rollback if we can't sync state */
|
|
gst_element_sync_state_with_parent (GST_ELEMENT (track));
|
|
g_object_set (track, "message-forward", TRUE, NULL);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
/**
|
|
* ges_timeline_remove_track:
|
|
* @timeline: a #GESTimeline
|
|
* @track: the #GESTrack to remove
|
|
*
|
|
* Remove the @track from the @timeline. The reference stolen when adding the
|
|
* @track will be removed. If you wish to use the @track after calling this
|
|
* function you must ensure that you have a reference to it.
|
|
*
|
|
* Returns: %TRUE if the @track was properly removed, else %FALSE.
|
|
*/
|
|
|
|
/* FIXME: release any track elements associated with this layer. currenly this
|
|
* will not happen if you remove the track before removing *all*
|
|
* clips which have a track element in this track.
|
|
*/
|
|
|
|
gboolean
|
|
ges_timeline_remove_track (GESTimeline * timeline, GESTrack * track)
|
|
{
|
|
GList *tmp;
|
|
TrackPrivate *tr_priv;
|
|
GESTimelinePrivate *priv;
|
|
|
|
g_return_val_if_fail (GES_IS_TRACK (track), FALSE);
|
|
g_return_val_if_fail (GES_IS_TIMELINE (timeline), FALSE);
|
|
CHECK_THREAD (timeline);
|
|
|
|
GST_DEBUG ("timeline:%p, track:%p", timeline, track);
|
|
|
|
priv = timeline->priv;
|
|
LOCK_DYN (timeline);
|
|
if (G_UNLIKELY (!(tmp = g_list_find_custom (priv->priv_tracks,
|
|
track, (GCompareFunc) custom_find_track)))) {
|
|
GST_WARNING ("Track doesn't belong to this timeline");
|
|
UNLOCK_DYN (timeline);
|
|
return FALSE;
|
|
}
|
|
|
|
tr_priv = tmp->data;
|
|
gst_object_unref (tr_priv->pad);
|
|
priv->priv_tracks = g_list_remove (priv->priv_tracks, tr_priv);
|
|
UNLOCK_DYN (timeline);
|
|
timeline->tracks = g_list_remove (timeline->tracks, track);
|
|
|
|
ges_track_set_timeline (track, NULL);
|
|
|
|
/* Remove ghost pad */
|
|
if (tr_priv->ghostpad) {
|
|
GST_DEBUG ("Removing ghostpad");
|
|
gst_pad_set_active (tr_priv->ghostpad, FALSE);
|
|
gst_ghost_pad_set_target ((GstGhostPad *) tr_priv->ghostpad, NULL);
|
|
gst_element_remove_pad (GST_ELEMENT (timeline), tr_priv->ghostpad);
|
|
}
|
|
|
|
/* Remove pad-added/-removed handlers */
|
|
g_signal_handlers_disconnect_by_func (track, track_element_added_cb,
|
|
timeline);
|
|
g_signal_handlers_disconnect_by_func (track, track_element_removed_cb,
|
|
timeline);
|
|
|
|
/* Signal track removal to all layers/objects */
|
|
g_signal_emit (timeline, ges_timeline_signals[TRACK_REMOVED], 0, track);
|
|
|
|
/* remove track from our bin */
|
|
gst_object_ref (track);
|
|
if (G_UNLIKELY (!gst_bin_remove (GST_BIN (timeline), GST_ELEMENT (track)))) {
|
|
GST_WARNING ("Couldn't remove track to ourself (GST)");
|
|
gst_object_unref (track);
|
|
return FALSE;
|
|
}
|
|
|
|
/* set track state to NULL */
|
|
gst_element_set_state (GST_ELEMENT (track), GST_STATE_NULL);
|
|
|
|
gst_object_unref (track);
|
|
|
|
g_free (tr_priv);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
/**
|
|
* ges_timeline_get_track_for_pad:
|
|
* @timeline: The #GESTimeline
|
|
* @pad: The #GstPad
|
|
*
|
|
* Search the #GESTrack corresponding to the given @timeline's @pad.
|
|
*
|
|
* Returns: (transfer none) (nullable): The corresponding #GESTrack if it is
|
|
* found, or %NULL if there is an error.
|
|
*/
|
|
|
|
GESTrack *
|
|
ges_timeline_get_track_for_pad (GESTimeline * timeline, GstPad * pad)
|
|
{
|
|
GList *tmp;
|
|
|
|
g_return_val_if_fail (GES_IS_TIMELINE (timeline), NULL);
|
|
|
|
LOCK_DYN (timeline);
|
|
for (tmp = timeline->priv->priv_tracks; tmp; tmp = g_list_next (tmp)) {
|
|
TrackPrivate *tr_priv = (TrackPrivate *) tmp->data;
|
|
if (pad == tr_priv->ghostpad) {
|
|
UNLOCK_DYN (timeline);
|
|
return tr_priv->track;
|
|
}
|
|
}
|
|
UNLOCK_DYN (timeline);
|
|
|
|
return NULL;
|
|
}
|
|
|
|
/**
|
|
* ges_timeline_get_pad_for_track:
|
|
* @timeline: The #GESTimeline
|
|
* @track: The #GESTrack
|
|
*
|
|
* Search the #GstPad corresponding to the given @timeline's @track.
|
|
*
|
|
* Returns: (transfer none) (nullable): The corresponding #GstPad if it is
|
|
* found, or %NULL if there is an error.
|
|
*/
|
|
|
|
GstPad *
|
|
ges_timeline_get_pad_for_track (GESTimeline * timeline, GESTrack * track)
|
|
{
|
|
GList *tmp;
|
|
|
|
LOCK_DYN (timeline);
|
|
for (tmp = timeline->priv->priv_tracks; tmp; tmp = g_list_next (tmp)) {
|
|
TrackPrivate *tr_priv = (TrackPrivate *) tmp->data;
|
|
|
|
if (track == tr_priv->track) {
|
|
if (tr_priv->ghostpad)
|
|
gst_object_ref (tr_priv->ghostpad);
|
|
|
|
UNLOCK_DYN (timeline);
|
|
return tr_priv->ghostpad;
|
|
}
|
|
}
|
|
UNLOCK_DYN (timeline);
|
|
|
|
return NULL;
|
|
}
|
|
|
|
/**
|
|
* ges_timeline_get_tracks:
|
|
* @timeline: a #GESTimeline
|
|
*
|
|
* Returns the list of #GESTrack used by the Timeline.
|
|
*
|
|
* Returns: (transfer full) (element-type GESTrack): A list of #GESTrack.
|
|
* The caller should unref each track once he is done with them.
|
|
*/
|
|
GList *
|
|
ges_timeline_get_tracks (GESTimeline * timeline)
|
|
{
|
|
g_return_val_if_fail (GES_IS_TIMELINE (timeline), NULL);
|
|
CHECK_THREAD (timeline);
|
|
|
|
return g_list_copy_deep (timeline->tracks, (GCopyFunc) gst_object_ref, NULL);
|
|
}
|
|
|
|
/**
|
|
* ges_timeline_get_layers:
|
|
* @timeline: a #GESTimeline
|
|
*
|
|
* Get the list of #GESLayer present in the Timeline.
|
|
*
|
|
* Returns: (transfer full) (element-type GESLayer): the list of
|
|
* #GESLayer present in the Timeline sorted by priority.
|
|
* The caller should unref each Layer once he is done with them.
|
|
*/
|
|
GList *
|
|
ges_timeline_get_layers (GESTimeline * timeline)
|
|
{
|
|
GList *tmp, *res = NULL;
|
|
|
|
g_return_val_if_fail (GES_IS_TIMELINE (timeline), NULL);
|
|
CHECK_THREAD (timeline);
|
|
|
|
for (tmp = timeline->layers; tmp; tmp = g_list_next (tmp)) {
|
|
res = g_list_insert_sorted (res, gst_object_ref (tmp->data),
|
|
(GCompareFunc) sort_layers);
|
|
}
|
|
|
|
return res;
|
|
}
|
|
|
|
static void
|
|
track_commited_cb (GESTrack * track, GESTimeline * timeline)
|
|
{
|
|
gboolean emit_commited = FALSE;
|
|
GST_OBJECT_LOCK (timeline);
|
|
timeline->priv->expected_commited -= 1;
|
|
if (timeline->priv->expected_commited == 0)
|
|
emit_commited = TRUE;
|
|
g_signal_handlers_disconnect_by_func (track, track_commited_cb, timeline);
|
|
GST_OBJECT_UNLOCK (timeline);
|
|
|
|
if (emit_commited) {
|
|
g_signal_emit (timeline, ges_timeline_signals[COMMITED], 0);
|
|
}
|
|
}
|
|
|
|
/* Must be called with the timeline's DYN_LOCK */
|
|
static gboolean
|
|
ges_timeline_commit_unlocked (GESTimeline * timeline)
|
|
{
|
|
GList *tmp;
|
|
gboolean res = TRUE;
|
|
|
|
GST_DEBUG_OBJECT (timeline, "commiting changes");
|
|
|
|
timeline_tree_create_transitions (timeline->priv->tree,
|
|
ges_timeline_find_auto_transition);
|
|
for (tmp = timeline->layers; tmp; tmp = tmp->next) {
|
|
GESLayer *layer = tmp->data;
|
|
|
|
/* Ensure clip priorities are correct after an edit */
|
|
ges_layer_resync_priorities (layer);
|
|
}
|
|
|
|
timeline->priv->expected_commited =
|
|
g_list_length (timeline->priv->priv_tracks);
|
|
|
|
if (timeline->priv->expected_commited == 0) {
|
|
g_signal_emit (timeline, ges_timeline_signals[COMMITED], 0);
|
|
} else {
|
|
GstStreamCollection *collection = gst_stream_collection_new (NULL);
|
|
|
|
for (tmp = timeline->tracks; tmp; tmp = tmp->next) {
|
|
TrackPrivate *tr_priv =
|
|
g_list_find_custom (timeline->priv->priv_tracks, tmp->data,
|
|
(GCompareFunc) custom_find_track)->data;
|
|
|
|
update_stream_object (tr_priv);
|
|
gst_stream_collection_add_stream (collection,
|
|
gst_object_ref (tr_priv->stream));
|
|
g_signal_connect (tmp->data, "commited", G_CALLBACK (track_commited_cb),
|
|
timeline);
|
|
if (!ges_track_commit (GES_TRACK (tmp->data)))
|
|
res = FALSE;
|
|
}
|
|
|
|
gst_object_unref (timeline->priv->stream_collection);
|
|
timeline->priv->stream_collection = collection;
|
|
}
|
|
|
|
return res;
|
|
}
|
|
|
|
/**
|
|
* ges_timeline_commit:
|
|
* @timeline: a #GESTimeline
|
|
*
|
|
* Commit all the pending changes of the clips contained in the
|
|
* @timeline.
|
|
*
|
|
* When changes happen in a timeline, they are not
|
|
* directly executed in the non-linear engine. Call this method once you are
|
|
* done with a set of changes and want it to be executed.
|
|
*
|
|
* The #GESTimeline::commited signal will be emitted when the (possibly updated)
|
|
* #GstPipeline is ready to output data again, except if the state of the
|
|
* timeline was #GST_STATE_READY or #GST_STATE_NULL.
|
|
*
|
|
* Note that all the pending changes will automatically be executed when the
|
|
* timeline goes from #GST_STATE_READY to #GST_STATE_PAUSED, which usually is
|
|
* triggered by corresponding state changes in a containing #GESPipeline.
|
|
*
|
|
* You should not try to change the state of the timeline, seek it or add
|
|
* tracks to it during a commit operation, that is between a call to this
|
|
* function and after receiving the #GESTimeline::commited signal.
|
|
*
|
|
* See #ges_timeline_commit_sync if you don't want to bother with waiting
|
|
* for the signal.
|
|
*
|
|
* Returns: %TRUE if pending changes were commited or %FALSE if nothing needed
|
|
* to be commited
|
|
*/
|
|
gboolean
|
|
ges_timeline_commit (GESTimeline * timeline)
|
|
{
|
|
gboolean ret;
|
|
GstStreamCollection *pcollection = timeline->priv->stream_collection;
|
|
|
|
g_return_val_if_fail (GES_IS_TIMELINE (timeline), FALSE);
|
|
|
|
LOCK_DYN (timeline);
|
|
ret = ges_timeline_commit_unlocked (timeline);
|
|
UNLOCK_DYN (timeline);
|
|
|
|
if (pcollection != timeline->priv->stream_collection) {
|
|
gst_element_post_message ((GstElement *) timeline,
|
|
gst_message_new_stream_collection ((GstObject *) timeline,
|
|
timeline->priv->stream_collection));
|
|
}
|
|
|
|
ges_timeline_emit_snapping (timeline, NULL, NULL, GST_CLOCK_TIME_NONE);
|
|
return ret;
|
|
}
|
|
|
|
static void
|
|
commited_cb (GESTimeline * timeline)
|
|
{
|
|
g_mutex_lock (&timeline->priv->commited_lock);
|
|
g_cond_signal (&timeline->priv->commited_cond);
|
|
g_mutex_unlock (&timeline->priv->commited_lock);
|
|
}
|
|
|
|
/**
|
|
* ges_timeline_commit_sync:
|
|
* @timeline: a #GESTimeline
|
|
*
|
|
* Commit all the pending changes of the #GESClips contained in the
|
|
* @timeline.
|
|
*
|
|
* Will return once the update is complete, that is when the
|
|
* (possibly updated) #GstPipeline is ready to output data again, or if the
|
|
* state of the timeline was #GST_STATE_READY or #GST_STATE_NULL.
|
|
*
|
|
* This function will wait for any pending state change of the timeline by
|
|
* calling #gst_element_get_state with a #GST_CLOCK_TIME_NONE timeout, you
|
|
* should not try to change the state from another thread before this function
|
|
* has returned.
|
|
*
|
|
* See #ges_timeline_commit for more information.
|
|
*
|
|
* Returns: %TRUE if pending changes were commited or %FALSE if nothing needed
|
|
* to be commited
|
|
*/
|
|
gboolean
|
|
ges_timeline_commit_sync (GESTimeline * timeline)
|
|
{
|
|
gboolean ret;
|
|
gboolean wait_for_signal;
|
|
|
|
g_return_val_if_fail (GES_IS_TIMELINE (timeline), FALSE);
|
|
|
|
/* Let's make sure our state is stable */
|
|
gst_element_get_state (GST_ELEMENT (timeline), NULL, NULL,
|
|
GST_CLOCK_TIME_NONE);
|
|
|
|
/* Let's make sure no track gets added between now and the actual commiting */
|
|
LOCK_DYN (timeline);
|
|
wait_for_signal = g_list_length (timeline->priv->priv_tracks) > 0
|
|
&& GST_STATE (timeline) >= GST_STATE_PAUSED;
|
|
|
|
if (!wait_for_signal) {
|
|
ret = ges_timeline_commit_unlocked (timeline);
|
|
} else {
|
|
gulong handler_id =
|
|
g_signal_connect (timeline, "commited", (GCallback) commited_cb, NULL);
|
|
|
|
g_mutex_lock (&timeline->priv->commited_lock);
|
|
|
|
ret = ges_timeline_commit_unlocked (timeline);
|
|
g_cond_wait (&timeline->priv->commited_cond,
|
|
&timeline->priv->commited_lock);
|
|
g_mutex_unlock (&timeline->priv->commited_lock);
|
|
g_signal_handler_disconnect (timeline, handler_id);
|
|
}
|
|
|
|
UNLOCK_DYN (timeline);
|
|
|
|
return ret;
|
|
}
|
|
|
|
/**
|
|
* ges_timeline_get_duration:
|
|
* @timeline: a #GESTimeline
|
|
*
|
|
* Get the current duration of @timeline
|
|
*
|
|
* Returns: The current duration of @timeline
|
|
*/
|
|
GstClockTime
|
|
ges_timeline_get_duration (GESTimeline * timeline)
|
|
{
|
|
g_return_val_if_fail (GES_IS_TIMELINE (timeline), GST_CLOCK_TIME_NONE);
|
|
CHECK_THREAD (timeline);
|
|
|
|
return timeline->priv->duration;
|
|
}
|
|
|
|
/**
|
|
* ges_timeline_get_auto_transition:
|
|
* @timeline: a #GESTimeline
|
|
*
|
|
* Gets whether transitions are automatically added when objects
|
|
* overlap or not.
|
|
*
|
|
* Returns: %TRUE if transitions are automatically added, else %FALSE.
|
|
*/
|
|
gboolean
|
|
ges_timeline_get_auto_transition (GESTimeline * timeline)
|
|
{
|
|
g_return_val_if_fail (GES_IS_TIMELINE (timeline), FALSE);
|
|
CHECK_THREAD (timeline);
|
|
|
|
return timeline->priv->auto_transition;
|
|
}
|
|
|
|
/**
|
|
* ges_timeline_set_auto_transition:
|
|
* @timeline: a #GESLayer
|
|
* @auto_transition: whether the auto_transition is active
|
|
*
|
|
* Sets the layer to the given @auto_transition. See the documentation of the
|
|
* property auto_transition for more information.
|
|
*/
|
|
void
|
|
ges_timeline_set_auto_transition (GESTimeline * timeline,
|
|
gboolean auto_transition)
|
|
{
|
|
GList *layers;
|
|
GESLayer *layer;
|
|
|
|
g_return_if_fail (GES_IS_TIMELINE (timeline));
|
|
CHECK_THREAD (timeline);
|
|
|
|
timeline->priv->auto_transition = auto_transition;
|
|
g_object_notify (G_OBJECT (timeline), "auto-transition");
|
|
|
|
layers = timeline->layers;
|
|
for (; layers; layers = layers->next) {
|
|
layer = layers->data;
|
|
ges_layer_set_auto_transition (layer, auto_transition);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* ges_timeline_get_snapping_distance:
|
|
* @timeline: a #GESTimeline
|
|
*
|
|
* Gets the configured snapping distance of the timeline. See
|
|
* the documentation of the property snapping_distance for more
|
|
* information.
|
|
*
|
|
* Returns: The @snapping_distance property of the timeline
|
|
*/
|
|
GstClockTime
|
|
ges_timeline_get_snapping_distance (GESTimeline * timeline)
|
|
{
|
|
g_return_val_if_fail (GES_IS_TIMELINE (timeline), GST_CLOCK_TIME_NONE);
|
|
CHECK_THREAD (timeline);
|
|
|
|
return timeline->priv->snapping_distance;
|
|
|
|
}
|
|
|
|
/**
|
|
* ges_timeline_set_snapping_distance:
|
|
* @timeline: a #GESLayer
|
|
* @snapping_distance: whether the snapping_distance is active
|
|
*
|
|
* Sets the @snapping_distance of the timeline. See the documentation of the
|
|
* property snapping_distance for more information.
|
|
*/
|
|
void
|
|
ges_timeline_set_snapping_distance (GESTimeline * timeline,
|
|
GstClockTime snapping_distance)
|
|
{
|
|
g_return_if_fail (GES_IS_TIMELINE (timeline));
|
|
CHECK_THREAD (timeline);
|
|
|
|
timeline->priv->snapping_distance = snapping_distance;
|
|
}
|
|
|
|
/**
|
|
* ges_timeline_get_element:
|
|
* @timeline: a #GESTimeline
|
|
*
|
|
* Gets a #GESTimelineElement contained in the timeline
|
|
*
|
|
* Returns: (transfer full) (nullable): The #GESTimelineElement or %NULL if
|
|
* not found.
|
|
*/
|
|
GESTimelineElement *
|
|
ges_timeline_get_element (GESTimeline * timeline, const gchar * name)
|
|
{
|
|
GESTimelineElement *ret;
|
|
|
|
g_return_val_if_fail (GES_IS_TIMELINE (timeline), NULL);
|
|
CHECK_THREAD (timeline);
|
|
|
|
ret = g_hash_table_lookup (timeline->priv->all_elements, name);
|
|
|
|
if (ret)
|
|
return gst_object_ref (ret);
|
|
|
|
#ifndef GST_DISABLE_GST_DEBUG
|
|
{
|
|
GList *element_names, *tmp;
|
|
element_names = g_hash_table_get_keys (timeline->priv->all_elements);
|
|
|
|
GST_INFO_OBJECT (timeline, "Does not contain element %s", name);
|
|
|
|
for (tmp = element_names; tmp; tmp = tmp->next) {
|
|
GST_DEBUG_OBJECT (timeline, "Containes: %s", (gchar *) tmp->data);
|
|
}
|
|
g_list_free (element_names);
|
|
}
|
|
#endif
|
|
|
|
return NULL;
|
|
}
|
|
|
|
/**
|
|
* ges_timeline_is_empty:
|
|
* @timeline: a #GESTimeline
|
|
*
|
|
* Check whether a #GESTimeline is empty or not
|
|
*
|
|
* Returns: %TRUE if the timeline is empty %FALSE otherwize
|
|
*/
|
|
gboolean
|
|
ges_timeline_is_empty (GESTimeline * timeline)
|
|
{
|
|
GHashTableIter iter;
|
|
gpointer key, value;
|
|
|
|
g_return_val_if_fail (GES_IS_TIMELINE (timeline), FALSE);
|
|
CHECK_THREAD (timeline);
|
|
|
|
if (g_hash_table_size (timeline->priv->all_elements) == 0)
|
|
return TRUE;
|
|
|
|
g_hash_table_iter_init (&iter, timeline->priv->all_elements);
|
|
while (g_hash_table_iter_next (&iter, &key, &value)) {
|
|
if (GES_IS_SOURCE (value) &&
|
|
ges_track_element_is_active (GES_TRACK_ELEMENT (value)))
|
|
return FALSE;
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
/**
|
|
* ges_timeline_get_layer:
|
|
* @timeline: The #GESTimeline to retrive a layer from
|
|
* @priority: The priority of the layer to find
|
|
*
|
|
* Retrieve the layer with @priority as a priority
|
|
*
|
|
* Returns: (transfer full) (nullable): A #GESLayer or %NULL if no layer with
|
|
* @priority was found
|
|
*
|
|
* Since 1.6
|
|
*/
|
|
GESLayer *
|
|
ges_timeline_get_layer (GESTimeline * timeline, guint priority)
|
|
{
|
|
GList *tmp;
|
|
GESLayer *layer = NULL;
|
|
|
|
g_return_val_if_fail (GES_IS_TIMELINE (timeline), NULL);
|
|
CHECK_THREAD (timeline);
|
|
|
|
for (tmp = timeline->layers; tmp; tmp = tmp->next) {
|
|
GESLayer *tmp_layer = GES_LAYER (tmp->data);
|
|
guint tmp_priority;
|
|
|
|
g_object_get (tmp_layer, "priority", &tmp_priority, NULL);
|
|
if (tmp_priority == priority) {
|
|
layer = gst_object_ref (tmp_layer);
|
|
break;
|
|
}
|
|
}
|
|
|
|
return layer;
|
|
}
|
|
|
|
/**
|
|
* ges_timeline_paste_element:
|
|
* @timeline: The #GESTimeline onto which the #GESTimelineElement should be pasted
|
|
* @element: The #GESTimelineElement to paste
|
|
* @position: The position in the timeline the element should
|
|
* be pasted to, meaning it will become the start of @element
|
|
* @layer_priority: The #GESLayer to which the element should be pasted to.
|
|
* -1 means paste to the same layer from which the @element has been copied from.
|
|
*
|
|
* Paste @element inside the timeline. @element must have been
|
|
* created using ges_timeline_element_copy with deep=TRUE set,
|
|
* i.e. it must be a deep copy, otherwise it will fail.
|
|
*
|
|
* Returns: (transfer none): Shallow copy of the @element pasted
|
|
*/
|
|
GESTimelineElement *
|
|
ges_timeline_paste_element (GESTimeline * timeline,
|
|
GESTimelineElement * element, GstClockTime position, gint layer_priority)
|
|
{
|
|
GESTimelineElement *res, *copied_from;
|
|
GESTimelineElementClass *element_class;
|
|
|
|
g_return_val_if_fail (GES_IS_TIMELINE (timeline), FALSE);
|
|
g_return_val_if_fail (GES_IS_TIMELINE_ELEMENT (element), FALSE);
|
|
CHECK_THREAD (timeline);
|
|
|
|
element_class = GES_TIMELINE_ELEMENT_GET_CLASS (element);
|
|
copied_from = ges_timeline_element_get_copied_from (element);
|
|
|
|
if (!copied_from) {
|
|
GST_ERROR_OBJECT (element, "Is not being 'deeply' copied!");
|
|
|
|
return NULL;
|
|
}
|
|
|
|
if (!element_class->paste) {
|
|
GST_ERROR_OBJECT (element, "No paste vmethod implemented");
|
|
|
|
return NULL;
|
|
}
|
|
|
|
/*
|
|
* Currently the API only supports pasting onto the same layer from which
|
|
* the @element has been copied from, i.e., @layer_priority needs to be -1.
|
|
*/
|
|
if (layer_priority != -1) {
|
|
GST_WARNING_OBJECT (timeline,
|
|
"Only -1 value for layer priority is supported");
|
|
}
|
|
|
|
res = element_class->paste (element, copied_from, position);
|
|
|
|
g_clear_object (&copied_from);
|
|
|
|
return g_object_ref (res);
|
|
}
|
|
|
|
/**
|
|
* ges_timeline_move_layer:
|
|
* @timeline: The timeline in which @layer must be
|
|
* @layer: The layer to move at @new_layer_priority
|
|
* @new_layer_priority: The index at which @layer should land
|
|
*
|
|
* Moves @layer at @new_layer_priority meaning that @layer
|
|
* we land at that position in the stack of layers inside
|
|
* the timeline. If @new_layer_priority is superior than the number
|
|
* of layers present in the time, it will move to the end of the
|
|
* stack of layers.
|
|
*
|
|
* Since: 1.16
|
|
*/
|
|
gboolean
|
|
ges_timeline_move_layer (GESTimeline * timeline, GESLayer * layer,
|
|
guint new_layer_priority)
|
|
{
|
|
gint current_priority;
|
|
|
|
g_return_val_if_fail (GES_IS_TIMELINE (timeline), FALSE);
|
|
g_return_val_if_fail (GES_IS_LAYER (layer), FALSE);
|
|
g_return_val_if_fail (ges_layer_get_timeline (layer) == timeline, FALSE);
|
|
CHECK_THREAD (timeline);
|
|
|
|
current_priority = ges_layer_get_priority (layer);
|
|
|
|
if (new_layer_priority == current_priority) {
|
|
GST_DEBUG_OBJECT (timeline,
|
|
"Nothing to do for %" GST_PTR_FORMAT ", same priorities", layer);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
timeline->layers = g_list_remove (timeline->layers, layer);
|
|
timeline->layers = g_list_insert (timeline->layers, layer,
|
|
(gint) new_layer_priority);
|
|
|
|
_resync_layers (timeline);
|
|
|
|
return TRUE;
|
|
}
|