mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-11-26 19:51:11 +00:00
ges: Auto transition cleanup
This commit is contained in:
Thibault Saunier
parent
0c872c4340
commit
5021017904
1 changed files with 192 additions and 103 deletions
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@ -36,14 +36,16 @@
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#define LAYER_HEIGHT 10
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void track_object_added_cb (GESTimelineObject * object,
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static void track_object_added_cb (GESTimelineObject * object,
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GESTrackObject * track_object, GESTimelineLayer * layer);
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static void track_object_start_changed_cb (GESTrackObject * track_object,
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GParamSpec * arg G_GNUC_UNUSED, GESTimelineObject * object);
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void calculate_transition (GESTrackObject * track_object,
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GESTimelineObject * object);
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static void track_object_changed_cb (GESTrackObject * track_object,
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GParamSpec * arg G_GNUC_UNUSED, GESTimelineLayer * layer);
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static void calculate_transitions (GESTrackObject * track_object,
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GESTimelineLayer * layer);
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static void calculate_next_transition (GESTrackObject * track_object,
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GESTimelineLayer * layer);
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void
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static void
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timeline_object_height_changed_cb (GESTimelineObject * obj,
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GESTrackEffect * tr_eff, GESTimelineObject * second_obj);
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@ -80,7 +82,7 @@ static guint ges_timeline_layer_signals[LAST_SIGNAL] = { 0 };
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static gboolean ges_timeline_layer_resync_priorities (GESTimelineLayer * layer);
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static GList *track_get_by_layer (GESTrackObject * track_object);
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static GList *track_get_by_layer (GESTimelineLayer * layer, GESTrack * track);
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static void compare (GList * compared, GESTrackObject * track_object,
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gboolean ahead);
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@ -262,33 +264,24 @@ objects_start_compare (GESTimelineObject * a, GESTimelineObject * b)
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*/
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static GList *
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track_get_by_layer (GESTrackObject * track_object)
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track_get_by_layer (GESTimelineLayer * layer, GESTrack * track)
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{
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GESTrack *track;
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GList *tck_objects_list = NULL, *tmp = NULL, *return_list = NULL;
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GESTimelineLayer *layer;
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GESTimelineObject *tl_obj;
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gint priority, compared_priority;
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track = ges_track_object_get_track (track_object);
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tl_obj = ges_track_object_get_timeline_object (track_object);
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layer = ges_timeline_object_get_layer (tl_obj);
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priority = ges_timeline_layer_get_priority (layer);
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tck_objects_list = ges_track_get_objects (track);
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for (tmp = tck_objects_list; tmp; tmp = tmp->next) {
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tl_obj = ges_track_object_get_timeline_object (tmp->data);
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layer = ges_timeline_object_get_layer (tl_obj);
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compared_priority = ges_timeline_layer_get_priority (layer);
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if (compared_priority == priority) {
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g_object_ref (tmp->data);
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if (ges_timeline_object_get_layer (tl_obj) == layer) {
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/* We still the reference from tck_objects_list */
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return_list = g_list_append (return_list, tmp->data);
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}
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} else
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g_object_unref (tmp->data);
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}
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for (tmp = tck_objects_list; tmp; tmp = tmp->next)
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g_object_unref (tmp->data);
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g_list_free (tck_objects_list);
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return return_list;
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}
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@ -317,8 +310,7 @@ ges_timeline_layer_add_object (GESTimelineLayer * layer,
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(GCompareFunc) objects_start_compare);
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if (layer->priv->auto_transition) {
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if (GES_IS_TIMELINE_SOURCE (object)
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&& (ges_timeline_layer_get_priority (layer) != 99)) {
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if (GES_IS_TIMELINE_SOURCE (object)) {
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g_signal_connect (G_OBJECT (object), "track-object-added",
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G_CALLBACK (track_object_added_cb), layer);
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}
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@ -352,21 +344,46 @@ ges_timeline_layer_add_object (GESTimelineLayer * layer,
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return TRUE;
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}
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void
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static void
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track_object_duration_cb (GESTrackObject * track_object,
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GParamSpec * arg G_GNUC_UNUSED, GESTimelineLayer * layer)
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{
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if (G_LIKELY (GES_IS_TRACK_SOURCE (track_object)))
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GST_DEBUG ("Here we should recalculate");
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calculate_next_transition (track_object, layer);
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}
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static void
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track_object_added_cb (GESTimelineObject * object,
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GESTrackObject * track_object, GESTimelineLayer * layer)
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{
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if (GES_IS_TRACK_SOURCE (track_object)) {
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g_signal_connect (G_OBJECT (track_object), "notify::start",
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G_CALLBACK (track_object_start_changed_cb), object);
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calculate_transition (track_object, object);
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G_CALLBACK (track_object_changed_cb), layer);
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g_signal_connect (G_OBJECT (track_object), "notify::duration",
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G_CALLBACK (track_object_duration_cb), layer);
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calculate_transitions (track_object, layer);
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}
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g_object_unref (layer);
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return;
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}
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void
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static void
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track_object_removed_cb (GESTimelineObject * object,
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GESTrackObject * track_object, GESTimelineLayer * layer)
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{
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if (GES_IS_TRACK_SOURCE (track_object)) {
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g_signal_handlers_disconnect_by_func (track_object, track_object_changed_cb,
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object);
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calculate_transitions (track_object, layer);
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}
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g_object_unref (layer);
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return;
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}
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static void
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timeline_object_height_changed_cb (GESTimelineObject * obj,
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GESTrackEffect * tr_eff, GESTimelineObject * second_obj)
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{
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@ -376,69 +393,111 @@ timeline_object_height_changed_cb (GESTimelineObject * obj,
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}
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static void
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track_object_start_changed_cb (GESTrackObject * track_object,
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GParamSpec * arg G_GNUC_UNUSED, GESTimelineObject * object)
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track_object_changed_cb (GESTrackObject * track_object,
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GParamSpec * arg G_GNUC_UNUSED, GESTimelineLayer * layer)
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{
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if (GES_IS_TRACK_SOURCE (track_object)) {
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calculate_transition (track_object, object);
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}
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if (G_LIKELY (GES_IS_TRACK_SOURCE (track_object)))
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calculate_transitions (track_object, layer);
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}
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void
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calculate_transition (GESTrackObject * track_object, GESTimelineObject * object)
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static void
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calculate_next_transition_with_list (GESTrackObject * track_object,
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GList * tckobjs_in_layer, GESTimelineLayer * layer)
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{
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GList *list, *cur, *compared, *compared_next, *tmp;
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GList *compared;
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list = track_get_by_layer (track_object);
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cur = g_list_find (list, track_object);
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compared = cur->prev;
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if (!(compared = g_list_find (tckobjs_in_layer, track_object)))
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return;
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if (compared == NULL)
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goto next;
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/* This is the last TrackObject of the Track */
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return;
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while (!GES_IS_TRACK_SOURCE (compared->data)) {
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compared = compared->prev;
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do {
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compared = compared->next;
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if (compared == NULL)
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goto next;
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return;
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} while (!GES_IS_TRACK_SOURCE (compared->data));
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compare (compared, track_object, FALSE);
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}
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static void
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calculate_next_transition (GESTrackObject * track_object,
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GESTimelineLayer * layer)
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{
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GESTrack *track = ges_track_object_get_track (track_object);
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GList *tckobjs_in_layer = track_get_by_layer (layer, track);
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if (ges_track_object_get_track (track_object)) {
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calculate_next_transition_with_list (track_object, tckobjs_in_layer, layer);
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}
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g_list_free_full (tckobjs_in_layer, g_object_unref);
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}
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static void
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calculate_transitions (GESTrackObject * track_object, GESTimelineLayer * layer)
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{
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GList *tckobjs_in_layer, *compared;
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GESTrack *track = ges_track_object_get_track (track_object);
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tckobjs_in_layer = track_get_by_layer (layer, track);
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if (!(compared = g_list_find (tckobjs_in_layer, track_object)))
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return;
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do {
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compared = compared->prev;
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if (compared == NULL) {
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/* Nothing before, let's check after */
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calculate_next_transition_with_list (track_object, tckobjs_in_layer,
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layer);
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goto done;
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}
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} while (!GES_IS_TRACK_SOURCE (compared->data));
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compare (compared, track_object, TRUE);
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next:
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cur = g_list_find (list, track_object);
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compared_next = cur->next;
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calculate_next_transition_with_list (track_object, tckobjs_in_layer, layer);
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if (compared_next == NULL)
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return;
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while (!GES_IS_TRACK_SOURCE (compared_next->data)) {
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compared_next = compared_next->next;
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if (compared_next == NULL)
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return;
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}
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compare (compared_next, track_object, FALSE);
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for (tmp = list; tmp; tmp = tmp->next)
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g_object_unref (tmp->data);
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g_list_free (list);
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done:
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g_list_free_full (tckobjs_in_layer, g_object_unref);
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}
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/* Compare:
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* @compared: The #GList of #GESTrackObjects that we compare with @track_object
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* @track_object: The #GESTrackObject that serves as a reference
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* @ahead: %TRUE if we are comparing frontward %FALSE if we are comparing
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* backward*/
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static void
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compare (GList * compared, GESTrackObject * track_object, gboolean ahead)
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{
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GList *tmp;
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gint64 start, duration, compared_start, compared_duration, end, compared_end,
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tr_start, tr_duration;
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GESTimelineStandardTransition *tr = NULL;
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GESTimelineStandardTransition *trans = NULL;
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GESTrack *track;
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GESTimelineLayer *layer;
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GESTimelineObject *object, *compared_object, *first_object, *second_object;
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gint priority;
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g_return_if_fail (compared);
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GST_DEBUG ("Recalculating transitions");
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object = ges_track_object_get_timeline_object (track_object);
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if (!object) {
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GST_WARNING ("Trackobject not in a timeline object: "
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"Can not calulate transitions");
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return;
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}
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compared_object = ges_track_object_get_timeline_object (compared->data);
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layer = ges_timeline_object_get_layer (object);
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@ -450,53 +509,73 @@ compare (GList * compared, GESTrackObject * track_object, gboolean ahead)
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compared_end = compared_start + compared_duration;
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if (ahead) {
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/* Make sure we remove the last transition we created it is not needed
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* FIXME make it a smarter way */
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if (compared->prev && GES_IS_TRACK_TRANSITION (compared->prev->data)) {
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trans = GES_TIMELINE_STANDARD_TRANSITION
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(ges_track_object_get_timeline_object (compared->prev->data));
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g_object_get (compared->prev->data, "start", &tr_start, "duration",
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&tr_duration, NULL);
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if (tr_start >= compared_start && tr_start + tr_duration <= compared_end)
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ges_timeline_layer_remove_object (layer, GES_TIMELINE_OBJECT (trans));
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trans = NULL;
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}
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for (tmp = compared->next; tmp; tmp = tmp->next) {
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if GES_IS_TRACK_TRANSITION
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(tmp->data) {
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/* If we have a transitionm we recaluculate its values */
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if (GES_IS_TRACK_TRANSITION (tmp->data)) {
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g_object_get (tmp->data, "start", &tr_start, "duration", &tr_duration,
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NULL);
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if (tr_start + tr_duration == compared_start + compared_duration) {
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tr = GES_TIMELINE_STANDARD_TRANSITION
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(ges_track_object_get_timeline_object (tmp->data));
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GESTimelineObject *tlobj;
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tlobj = ges_track_object_get_timeline_object (tmp->data);
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trans = GES_TIMELINE_STANDARD_TRANSITION (tlobj);
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break;
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}
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}
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}
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}
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if (compared_end <= start) {
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if (tr) {
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ges_timeline_layer_remove_object (layer, GES_TIMELINE_OBJECT (tr));
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if (trans) {
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ges_timeline_layer_remove_object (layer, GES_TIMELINE_OBJECT (trans));
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g_object_get (compared_object, "priority", &priority, NULL);
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g_object_set (object, "priority", priority, NULL);
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}
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goto clean;
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} else if (start > compared_start && end < compared_end) {
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if (tr) {
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ges_timeline_layer_remove_object (layer, GES_TIMELINE_OBJECT (tr));
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}
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if (start - compared_start < compared_end - end) {
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ges_track_object_set_start (track_object, compared_end - duration + 1);
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compare (compared, track_object, FALSE);
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} else {
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ges_track_object_set_start (track_object, compared_start - 1);
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compare (compared, track_object, FALSE);
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if (trans) {
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/* Transition not needed anymore */
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ges_timeline_layer_remove_object (layer, GES_TIMELINE_OBJECT (trans));
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}
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goto clean;
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} else if (start <= compared_start) {
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if (tr) {
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ges_timeline_layer_remove_object (layer, GES_TIMELINE_OBJECT (tr));
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if (trans) {
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ges_timeline_layer_remove_object (layer, GES_TIMELINE_OBJECT (trans));
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}
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goto clean;
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}
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} else {
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if (compared->next && GES_IS_TRACK_TRANSITION (compared->next->data)) {
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trans = GES_TIMELINE_STANDARD_TRANSITION
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(ges_track_object_get_timeline_object (compared->next->data));
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g_object_get (compared->prev->data, "start", &tr_start, "duration",
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&tr_duration, NULL);
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if (tr_start >= compared_start && tr_start + tr_duration <= compared_end)
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ges_timeline_layer_remove_object (layer, GES_TIMELINE_OBJECT (trans));
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trans = NULL;
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}
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for (tmp = compared->prev; tmp; tmp = tmp->prev) {
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if GES_IS_TRACK_TRANSITION
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(tmp->data) {
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g_object_get (tmp->data, "start", &tr_start, "duration", &tr_duration,
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NULL);
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if (tr_start == compared_start) {
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tr = GES_TIMELINE_STANDARD_TRANSITION
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trans = GES_TIMELINE_STANDARD_TRANSITION
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(ges_track_object_get_timeline_object (tmp->data));
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break;
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}
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@ -504,40 +583,38 @@ compare (GList * compared, GESTrackObject * track_object, gboolean ahead)
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}
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if (start + duration <= compared_start) {
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if (tr) {
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ges_timeline_layer_remove_object (layer, GES_TIMELINE_OBJECT (tr));
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if (trans) {
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ges_timeline_layer_remove_object (layer, GES_TIMELINE_OBJECT (trans));
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g_object_get (object, "priority", &priority, NULL);
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g_object_set (compared_object, "priority", priority, NULL);
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}
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goto clean;
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} else if (start > compared_start) {
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if (tr) {
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ges_timeline_layer_remove_object (layer, GES_TIMELINE_OBJECT (tr));
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}
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if (trans)
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ges_timeline_layer_remove_object (layer, GES_TIMELINE_OBJECT (trans));
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goto clean;
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} else if (start < compared_start && end > compared_end) {
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if (tr) {
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ges_timeline_layer_remove_object (layer, GES_TIMELINE_OBJECT (tr));
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}
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if (compared_start - start < end - compared_end) {
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ges_track_object_set_start (track_object, compared_end - duration - 1);
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compare (compared, track_object, TRUE);
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} else {
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ges_track_object_set_start (track_object, compared_start + 1);
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if (trans) {
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ges_timeline_layer_remove_object (layer, GES_TIMELINE_OBJECT (trans));
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}
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goto clean;
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}
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}
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if (tr == NULL) {
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if (!trans) {
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gint height;
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tr = ges_timeline_standard_transition_new_for_nick ((gchar *) "crossfade");
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trans =
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ges_timeline_standard_transition_new_for_nick ((gchar *) "crossfade");
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track = ges_track_object_get_track (track_object);
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ges_timeline_object_set_supported_formats (GES_TIMELINE_OBJECT (tr),
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ges_timeline_object_set_supported_formats (GES_TIMELINE_OBJECT (trans),
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track->type);
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ges_timeline_layer_add_object (layer, GES_TIMELINE_OBJECT (tr));
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ges_timeline_layer_add_object (layer, GES_TIMELINE_OBJECT (trans));
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if (ahead) {
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first_object = ges_track_object_get_timeline_object (compared->data);
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@ -554,15 +631,14 @@ compare (GList * compared, GESTrackObject * track_object, gboolean ahead)
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}
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|
||||
if (ahead) {
|
||||
g_object_set (tr, "start", start, "duration",
|
||||
g_object_set (trans, "start", start, "duration",
|
||||
compared_duration + compared_start - start, NULL);
|
||||
} else {
|
||||
g_object_set (tr, "start", compared_start, "duration",
|
||||
g_object_set (trans, "start", compared_start, "duration",
|
||||
start + duration - compared_start, NULL);
|
||||
}
|
||||
|
||||
clean:
|
||||
g_object_unref (track_object);
|
||||
g_object_unref (layer);
|
||||
}
|
||||
|
||||
|
|
@ -695,8 +771,21 @@ void
|
|||
ges_timeline_layer_set_auto_transition (GESTimelineLayer * layer,
|
||||
gboolean auto_transition)
|
||||
{
|
||||
|
||||
GList *tmp;
|
||||
g_return_if_fail (GES_IS_TIMELINE_LAYER (layer));
|
||||
|
||||
if (auto_transition) {
|
||||
for (tmp = layer->priv->objects_start; tmp; tmp = tmp->next) {
|
||||
if (GES_IS_TIMELINE_SOURCE (tmp->data)) {
|
||||
g_signal_connect (G_OBJECT (tmp->data), "track-object-added",
|
||||
G_CALLBACK (track_object_added_cb), layer);
|
||||
g_signal_connect (G_OBJECT (tmp->data), "track-object-removed",
|
||||
G_CALLBACK (track_object_removed_cb), layer);
|
||||
}
|
||||
}
|
||||
/* FIXME calculate all the transitions at that time */
|
||||
}
|
||||
layer->priv->auto_transition = auto_transition;
|
||||
}
|
||||
|
||||
|
|
|
|||
Loading…
Reference in a new issue