From ca0bcfcd50559249ce9a432a559aac75eadf622c Mon Sep 17 00:00:00 2001
From: Thibault Saunier <thibault.saunier@collabora.com>
Date: Mon, 19 Nov 2012 23:42:47 -0300
Subject: [PATCH] trackobject:  Implement the GESExtractable interface

---
 ges/ges-track-object.c              | 15 ++++++++++--
 ges/ges-track-object.h              |  4 ++-
 ges/ges-track-parse-launch-effect.c | 49 +++++++++++++++++++++++++++++++++++--
 3 files changed, 63 insertions(+), 5 deletions(-)

diff --git a/ges/ges-track-object.c b/ges/ges-track-object.c
index a3a957c..27ad627 100644
--- a/ges/ges-track-object.c
+++ b/ges/ges-track-object.c
@@ -31,12 +31,18 @@
  */
 
 #include "ges-internal.h"
+#include "ges-extractable.h"
 #include "ges-track-object.h"
 #include "ges-timeline-object.h"
 #include <gobject/gvaluecollector.h>
 
-G_DEFINE_ABSTRACT_TYPE (GESTrackObject, ges_track_object,
-    G_TYPE_INITIALLY_UNOWNED);
+static void ges_extractable_interface_init (GESExtractableInterface * iface);
+
+
+G_DEFINE_ABSTRACT_TYPE_WITH_CODE (GESTrackObject, ges_track_object,
+    G_TYPE_INITIALLY_UNOWNED,
+    G_IMPLEMENT_INTERFACE (GES_TYPE_EXTRACTABLE,
+        ges_extractable_interface_init));
 
 struct _GESTrackObjectPrivate
 {
@@ -371,6 +377,11 @@ ges_track_object_init (GESTrackObject * self)
   priv->maxduration = GST_CLOCK_TIME_NONE;
 }
 
+static void
+ges_extractable_interface_init (GESExtractableInterface * iface)
+{
+}
+
 static inline gboolean
 ges_track_object_set_start_internal (GESTrackObject * object, guint64 start)
 {
diff --git a/ges/ges-track-object.h b/ges/ges-track-object.h
index a9bdc79..9f6e0ba 100644
--- a/ges/ges-track-object.h
+++ b/ges/ges-track-object.h
@@ -89,6 +89,8 @@ struct _GESTrackObject {
 
   GESTrackObjectPrivate *priv;
 
+  GESAsset *asset;
+
   /* Padding for API extension */
   gpointer _ges_reserved[GES_PADDING_LARGE];
 };
@@ -113,7 +115,7 @@ struct _GESTrackObject {
  *
  * Subclasses can override the @create_gnl_object method to override what type
  * of GNonLin object will be created.
- */ 
+ */
 struct _GESTrackObjectClass {
   /*< private >*/
   GInitiallyUnownedClass parent_class;
diff --git a/ges/ges-track-parse-launch-effect.c b/ges/ges-track-parse-launch-effect.c
index 165fd88..9be8634 100644
--- a/ges/ges-track-parse-launch-effect.c
+++ b/ges/ges-track-parse-launch-effect.c
@@ -24,12 +24,17 @@
  */
 
 #include "ges-internal.h"
+#include "ges-extractable.h"
 #include "ges-track-object.h"
 #include "ges-track-effect.h"
 #include "ges-track-parse-launch-effect.h"
 
-G_DEFINE_TYPE (GESTrackParseLaunchEffect, ges_track_parse_launch_effect,
-    GES_TYPE_TRACK_EFFECT);
+static void ges_extractable_interface_init (GESExtractableInterface * iface);
+
+G_DEFINE_TYPE_WITH_CODE (GESTrackParseLaunchEffect,
+    ges_track_parse_launch_effect, GES_TYPE_TRACK_EFFECT,
+    G_IMPLEMENT_INTERFACE (GES_TYPE_EXTRACTABLE,
+        ges_extractable_interface_init));
 
 static void ges_track_parse_launch_effect_dispose (GObject * object);
 static void ges_track_parse_launch_effect_finalize (GObject * object);
@@ -47,6 +52,46 @@ enum
   PROP_BIN_DESCRIPTION,
 };
 
+static gchar *
+extractable_check_id (GType type, const gchar * id, GError ** error)
+{
+  GstElement *effect = gst_parse_bin_from_description (id, TRUE, error);
+
+  if (effect == NULL)
+    return NULL;
+
+  gst_object_unref (effect);
+  return g_strdup (id);
+}
+
+static GParameter *
+extractable_get_parameters_from_id (const gchar * id, guint * n_params)
+{
+  GParameter *params = g_new0 (GParameter, 2);
+
+  params[0].name = g_strdup ("bin-description");
+  g_value_init (&params[0].value, G_TYPE_STRING);
+  g_value_set_string (&params[0].value, id);
+
+  *n_params = 1;
+
+  return params;
+}
+
+static gchar *
+extractable_get_id (GESExtractable * self)
+{
+  return g_strdup (GES_TRACK_PARSE_LAUNCH_EFFECT (self)->priv->bin_description);
+}
+
+static void
+ges_extractable_interface_init (GESExtractableInterface * iface)
+{
+  iface->check_id = (GESExtractableCheckId) extractable_check_id;
+  iface->get_parameters_from_id = extractable_get_parameters_from_id;
+  iface->get_id = extractable_get_id;
+}
+
 static void
 ges_track_parse_launch_effect_get_property (GObject * object,
     guint property_id, GValue * value, GParamSpec * pspec)
-- 
2.7.4