GESTimeline *
overlayTL (void)
{
GESTimeline *timeline;
GESLayer *layer, *layer2;
timeline = ges_timeline_new_video ();
layer = ges_layer_new ();
layer2 = ges_layer_new ();
ges_layer_set_priority (layer2, 1);
guint prio1 = ges_layer_get_priority (layer);
guint prio2 = ges_layer_get_priority (layer2);
g_object_set (layer, "auto-transition", TRUE, NULL);
g_print ("prios %d %d\n", prio1, prio2);
ges_timeline_add_layer (timeline, layer);
ges_timeline_add_layer (timeline, layer2);
ges_clip_unknown_from_rel_path ("image/PNG_transparency_demonstration_1.png",
layer, 0, 0, 10);
ges_clip_unknown_from_rel_path ("hd/fluidsimulation.mp4", layer2, 0, 0, 10);
ges_timeline_commit (timeline);
return timeline;
}
/****************************************************
* Our listening of children *
****************************************************/
static void
_update_our_values (GESGroup * group)
{
GList *tmp;
GESContainer *container = GES_CONTAINER (group);
guint32 min_layer_prio = G_MAXINT32, max_layer_prio = 0;
for (tmp = GES_CONTAINER_CHILDREN (group); tmp; tmp = tmp->next) {
GESContainer *child = tmp->data;
if (GES_IS_CLIP (child)) {
GESLayer *layer = ges_clip_get_layer (GES_CLIP (child));
gint32 prio = ges_layer_get_priority (layer);
min_layer_prio = MIN (prio, min_layer_prio);
max_layer_prio = MAX (prio, max_layer_prio);
} else if (GES_IS_GROUP (child)) {
gint32 prio = _PRIORITY (child), height = GES_CONTAINER_HEIGHT (child);
min_layer_prio = MIN (prio, min_layer_prio);
max_layer_prio = MAX ((prio + height), max_layer_prio);
}
}
if (min_layer_prio != _PRIORITY (group)) {
group->priv->setting_value = TRUE;
_set_priority0 (GES_TIMELINE_ELEMENT (group), min_layer_prio);
group->priv->setting_value = FALSE;
for (tmp = GES_CONTAINER_CHILDREN (group); tmp; tmp = tmp->next) {
GESTimelineElement *child = tmp->data;
guint32 child_prio = GES_IS_CLIP (child) ?
ges_clip_get_layer_priority (GES_CLIP (child)) : _PRIORITY (child);
_ges_container_set_priority_offset (container,
child, min_layer_prio - child_prio);
}
}
group->priv->max_layer_prio = max_layer_prio;
_ges_container_set_height (GES_CONTAINER (group),
max_layer_prio - min_layer_prio + 1);
}
child, min_layer_prio - child_prio);
}
}
group->priv->max_layer_prio = max_layer_prio;
_ges_container_set_height (GES_CONTAINER (group),
max_layer_prio - min_layer_prio + 1);
}
static void
_child_priority_changed_cb (GESLayer * layer,
GParamSpec * arg G_GNUC_UNUSED, GESTimelineElement * clip)
{
GESContainer *container = GES_CONTAINER (GES_TIMELINE_ELEMENT_PARENT (clip));
gint layer_prio = ges_layer_get_priority (layer);
gint offset = _ges_container_get_priority_offset (container, clip);
if (container->children_control_mode != GES_CHILDREN_UPDATE) {
GST_DEBUG_OBJECT (container, "Ignoring updated");
return;
}
if (layer_prio + offset == _PRIORITY (container))
return;
container->initiated_move = clip;
_set_priority0 (GES_TIMELINE_ELEMENT (container), layer_prio + offset);
container->initiated_move = NULL;
}