/**************************************************** * 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); }
/** * ges_layer_resync_priorities: * @layer: a #GESLayer * * Resyncs the priorities of the objects controlled by @layer. * This method */ static gboolean ges_layer_resync_priorities (GESLayer * layer) { GList *tmp; GESTimelineElement *element; GST_DEBUG ("Resync priorities of %p", layer); /* TODO : Inhibit composition updates while doing this. * Ideally we want to do it from an even higher level, but here will * do in the meantime. */ for (tmp = layer->priv->clips_start; tmp; tmp = tmp->next) { element = GES_TIMELINE_ELEMENT (tmp->data); _set_priority0 (element, _PRIORITY (element)); } return TRUE; }
static gboolean _set_priority (GESTimelineElement * element, guint32 priority) { GESTrackElement *object = GES_TRACK_ELEMENT (element); if (priority < MIN_GNL_PRIO) { GST_INFO_OBJECT (element, "Priority (%d) < MIN_GNL_PRIO, setting it to %d", priority, MIN_GNL_PRIO); priority = MIN_GNL_PRIO; } GST_DEBUG ("object:%p, priority:%" G_GUINT32_FORMAT, object, priority); if (object->priv->gnlobject != NULL) { if (G_UNLIKELY (priority == _PRIORITY (object))) return FALSE; g_object_set (object->priv->gnlobject, "priority", priority, NULL); } else object->priv->pending_priority = priority; return TRUE; }
*min_priority = layer->min_nle_priority; *max_priority = layer->max_nle_priority; } else { *min_priority = MIN_NLE_PRIO; *max_priority = G_MAXUINT32; } } static void _child_priority_changed_cb (GESTimelineElement * child, GParamSpec * arg G_GNUC_UNUSED, GESContainer * container) { guint32 min_prio, max_prio; GST_DEBUG_OBJECT (container, "TimelineElement %p priority changed to %i", child, _PRIORITY (child)); if (container->children_control_mode == GES_CHILDREN_IGNORE_NOTIFIES) return; /* Update mapping */ _get_priority_range (container, &min_prio, &max_prio); _ges_container_set_priority_offset (container, child, min_prio + _PRIORITY (container) - _PRIORITY (child)); } /***************************************************** * * * GESTimelineElement virtual methods implementation * * *
/** * ges_layer_add_clip: * @layer: a #GESLayer * @clip: (transfer full): the #GESClip to add. * * Adds the given clip to the layer. Sets the clip's parent, and thus * takes ownership of the clip. * * An clip can only be added to one layer. * * Calling this method will construct and properly set all the media related * elements on @clip. If you need to know when those objects (actually #GESTrackElement) * are constructed, you should connect to the container::child-added signal which * is emited right after those elements are ready to be used. * * Returns: TRUE if the clip was properly added to the layer, or FALSE * if the @layer refuses to add the clip. */ gboolean ges_layer_add_clip (GESLayer * layer, GESClip * clip) { GESAsset *asset; GESLayerPrivate *priv; GESLayer *current_layer; g_return_val_if_fail (GES_IS_LAYER (layer), FALSE); g_return_val_if_fail (GES_IS_CLIP (clip), FALSE); GST_DEBUG_OBJECT (layer, "adding clip:%p", clip); priv = layer->priv; current_layer = ges_clip_get_layer (clip); if (G_UNLIKELY (current_layer)) { GST_WARNING ("Clip %p already belongs to another layer", clip); gst_object_unref (current_layer); return FALSE; } asset = ges_extractable_get_asset (GES_EXTRACTABLE (clip)); if (asset == NULL) { gchar *id; NewAssetUData *mudata = g_slice_new (NewAssetUData); mudata->clip = clip; mudata->layer = layer; GST_DEBUG_OBJECT (layer, "%" GST_PTR_FORMAT " as no reference to any " "assets creating a asset... trying sync", clip); id = ges_extractable_get_id (GES_EXTRACTABLE (clip)); asset = ges_asset_request (G_OBJECT_TYPE (clip), id, NULL); if (asset == NULL) { GESProject *project = layer->timeline ? GES_PROJECT (ges_extractable_get_asset (GES_EXTRACTABLE (layer->timeline))) : NULL; ges_asset_request_async (G_OBJECT_TYPE (clip), id, NULL, (GAsyncReadyCallback) new_asset_cb, mudata); if (project) ges_project_add_loading_asset (project, G_OBJECT_TYPE (clip), id); g_free (id); GST_LOG_OBJECT (layer, "Object added async"); return TRUE; } g_free (id); ges_extractable_set_asset (GES_EXTRACTABLE (clip), asset); g_slice_free (NewAssetUData, mudata); } gst_object_ref_sink (clip); /* Take a reference to the clip and store it stored by start/priority */ priv->clips_start = g_list_insert_sorted (priv->clips_start, clip, (GCompareFunc) element_start_compare); /* Inform the clip it's now in this layer */ ges_clip_set_layer (clip, layer); GST_DEBUG ("current clip priority : %d, Height: %d", _PRIORITY (clip), LAYER_HEIGHT); /* Set the priority. */ if (_PRIORITY (clip) > LAYER_HEIGHT) { GST_WARNING_OBJECT (layer, "%p is out of the layer space, setting its priority to " "%d, setting it to the maximum priority of the layer: %d", clip, _PRIORITY (clip), LAYER_HEIGHT - 1); _set_priority0 (GES_TIMELINE_ELEMENT (clip), LAYER_HEIGHT - 1); } /* If the clip has an acceptable priority, we just let it with its current * priority */ ges_layer_resync_priorities (layer); ges_timeline_element_set_timeline (GES_TIMELINE_ELEMENT (clip), layer->timeline); /* emit 'clip-added' */ g_signal_emit (layer, ges_layer_signals[OBJECT_ADDED], 0, clip); return TRUE; }