ges: Add a gnl background object to tracks

This is in order to support gaps in the timeline.
This is not the proper solution, we should make sure to fill gaps properly,
but for the time being, it makes the trick

diff --git a/ges/ges-track.c b/ges/ges-track.c
index 71ad5c841425279d656c57aa0bf9deef8c5b33ef..4d7b69eb68f0711f81a5680f2f18172c9ad75f53 100644 (file)
--- a/ges/ges-track.c
+++ b/ges/ges-track.c
@@ -46,6 +46,7 @@ struct _GESTrackPrivate
   GstCaps *caps;
 
   GstElement *composition;      /* The composition associated with this track */
+  GstElement *background;       /* The backgrond, handle the gaps in the track */
   GstPad *srcpad;               /* The source GhostPad */
 };
 
@@ -139,6 +140,49 @@ ges_track_dispose (GObject * object)
   G_OBJECT_CLASS (ges_track_parent_class)->dispose (object);
 }
 
+static void
+ges_track_constructed (GObject * object)
+{
+  GObjectClass *parent_class;
+  GstElement *background = NULL;
+  GESTrack *self = GES_TRACK (object);
+  GESTrackPrivate *priv = self->priv;
+
+  if ((priv->background = gst_element_factory_make ("gnlsource", "background"))) {
+    g_object_set (G_OBJECT (self->priv->background), "expandable", TRUE,
+        "priority", G_MAXINT, NULL);
+
+    switch (self->type) {
+      case GES_TRACK_TYPE_VIDEO:
+        background = gst_element_factory_make ("videotestsrc", "background");
+        g_object_set (background, "pattern", 2, NULL);
+        break;
+      case GES_TRACK_TYPE_AUDIO:
+        background = gst_element_factory_make ("audiotestsrc", "background");
+        g_object_set (background, "wave", 4, NULL);
+        break;
+      default:
+        break;
+    }
+
+    if (background) {
+      if (!gst_bin_add (GST_BIN (priv->background), background))
+        GST_ERROR ("Couldn't add background");
+      else {
+        if (!gst_bin_add (GST_BIN (priv->composition), priv->background))
+          GST_ERROR ("Couldn't add background");
+      }
+
+    }
+  }
+
+  parent_class = ges_track_parent_class;
+  if (parent_class->constructed)
+    parent_class->constructed (object);
+
+  G_OBJECT_CLASS (parent_class)->constructed (object);
+}
+
 static void
 ges_track_finalize (GObject * object)
 {
@@ -156,6 +200,7 @@ ges_track_class_init (GESTrackClass * klass)
   object_class->set_property = ges_track_set_property;
   object_class->dispose = ges_track_dispose;
   object_class->finalize = ges_track_finalize;
+  object_class->constructed = ges_track_constructed;
 
   /**
    * GESTrack:caps