controller: cleanup interpolation modes

Remove deprecated/unimplemented modes. Turn interpolation mode into a gobject
property. Update docs and examples.

diff --git a/docs/libs/gstreamer-libs-sections.txt b/docs/libs/gstreamer-libs-sections.txt
index c61a183..21efb35 100644 (file)
--- a/docs/libs/gstreamer-libs-sections.txt
+++ b/docs/libs/gstreamer-libs-sections.txt
@@ -69,12 +69,12 @@ gst_timed_value_control_invalidate_cache
 <SUBSECTION Standard>
 GstTimedValueControlSourceClass
 GstTimedValueControlSourcePrivate
-GST_INTERPOLATION_CONTROL_SOURCE
-GST_IS_INTERPOLATION_CONTROL_SOURCE
-GST_INTERPOLATION_CONTROL_SOURCE_CLASS
-GST_IS_INTERPOLATION_CONTROL_SOURCE_CLASS
-GST_INTERPOLATION_CONTROL_SOURCE_GET_CLASS
-GST_TYPE_INTERPOLATION_CONTROL_SOURCE
+GST_TIMED_VALUE_CONTROL_SOURCE
+GST_IS_TIMED_VALUE_CONTROL_SOURCE
+GST_TIMED_VALUE_CONTROL_SOURCE_CLASS
+GST_IS_TIMED_VALUE_CONTROL_SOURCE_CLASS
+GST_TIMED_VALUE_CONTROL_SOURCE_GET_CLASS
+GST_TYPE_TIMED_VALUE_CONTROL_SOURCE
 <SUBSECTION Private>
 gst_timed_value_control_source_get_type
 </SECTION>
@@ -84,20 +84,21 @@ gst_timed_value_control_source_get_type
 <TITLE>GstInterpolationControlSource</TITLE>
 <INCLUDE>libs/controller/gstinterpolationcontrolsource.h</INCLUDE>
 GstInterpolationControlSource
-GstInterpolateMode
+GstInterpolationMode
 gst_interpolation_control_source_new
-gst_interpolation_control_source_set_interpolation_mode
 <SUBSECTION Standard>
 GstInterpolationControlSourceClass
 GstInterpolationControlSourcePrivate
-GST_TIMED_VALUE_CONTROL_SOURCE
-GST_IS_TIMED_VALUE_CONTROL_SOURCE
-GST_TIMED_VALUE_CONTROL_SOURCE_CLASS
-GST_IS_TIMED_VALUE_CONTROL_SOURCE_CLASS
-GST_TIMED_VALUE_CONTROL_SOURCE_GET_CLASS
-GST_TYPE_TIMED_VALUE_CONTROL_SOURCE
+GST_INTERPOLATION_CONTROL_SOURCE
+GST_IS_INTERPOLATION_CONTROL_SOURCE
+GST_INTERPOLATION_CONTROL_SOURCE_CLASS
+GST_IS_INTERPOLATION_CONTROL_SOURCE_CLASS
+GST_INTERPOLATION_CONTROL_SOURCE_GET_CLASS
+GST_TYPE_INTERPOLATION_CONTROL_SOURCE
+GST_TYPE_INTERPOLATION_MODE
 <SUBSECTION Private>
 gst_interpolation_control_source_get_type
+gst_interpolation_mode_get_type
 </SECTION>
 
 <SECTION>

diff --git a/docs/random/porting-to-0.11.txt b/docs/random/porting-to-0.11.txt
index 57eba37..d86d026 100644 (file)
--- a/docs/random/porting-to-0.11.txt
+++ b/docs/random/porting-to-0.11.txt
@@ -452,3 +452,8 @@ The 0.11 porting guide
     GstTimedValueControlSource baseclass and 2 sub classes: 
     GstInterpolationControlSource and GstTriggerControlSource. The API for setting
     and getting the timestamps is in GstTimedValueControlSource.
+    
+    gst_interpolation_control_source_set_interpolation_mode() has been removed.
+    Set the "mode" gobject property on the control-source instead. The possible
+    enum values have been renamed from GST_INTERPOLATE_XXX to
+    GST_INTERPOLATION_MODE_XXX.

diff --git a/gst/gstobject.c b/gst/gstobject.c
index c3b8db7..4ed8d0f 100644 (file)
--- a/gst/gstobject.c
+++ b/gst/gstobject.c
@@ -113,7 +113,7 @@
  *   <listitem><para>
  *     create a #GstControlSource.
  *     csource = gst_interpolation_control_source_new ();
- *     gst_interpolation_control_source_set_interpolation_mode(csource, mode);
+ *     g_object_set (csource, "mode", GST_INTERPOLATION_MODE_LINEAR, NULL);
  *   </para></listitem>
  *   <listitem><para>
  *     Attach the #GstControlSource on the controller to a property.

diff --git a/libs/gst/controller/gstinterpolation.c b/libs/gst/controller/gstinterpolation.c
index 7098f3a..10704fa 100644 (file)
--- a/libs/gst/controller/gstinterpolation.c
+++ b/libs/gst/controller/gstinterpolation.c
@@ -585,7 +585,6 @@ static GstInterpolateMethod interpolate_cubic = {
 GstInterpolateMethod *priv_gst_interpolation_methods[] = {
   &interpolate_none,
   &interpolate_linear,
-  &interpolate_cubic,
   &interpolate_cubic
 };
 

diff --git a/libs/gst/controller/gstinterpolationcontrolsource.c b/libs/gst/controller/gstinterpolationcontrolsource.c
index 037bc75..14f8b54 100644 (file)
--- a/libs/gst/controller/gstinterpolationcontrolsource.c
+++ b/libs/gst/controller/gstinterpolationcontrolsource.c
@@ -29,9 +29,8 @@
  * control points. It supports several interpolation modes and property types.
  *
  * To use #GstInterpolationControlSource get a new instance by calling
- * gst_interpolation_control_source_new(), bind it to a #GParamSpec, select a interpolation mode with
- * gst_interpolation_control_source_set_interpolation_mode() and set some control points by calling
- * gst_timed_value_control_source_set().
+ * gst_interpolation_control_source_new(), bind it to a #GParamSpec and set some
+ * control points by calling gst_timed_value_control_source_set().
  *
  * All functions are MT-safe.
  *
@@ -47,6 +46,31 @@
 #define GST_CAT_DEFAULT controller_debug
 GST_DEBUG_CATEGORY_STATIC (GST_CAT_DEFAULT);
 
+enum
+{
+  PROP_MODE = 1
+};
+
+GType
+gst_interpolation_mode_get_type (void)
+{
+  static gsize gtype = 0;
+  static const GEnumValue values[] = {
+    {GST_INTERPOLATION_MODE_NONE, "GST_INTERPOLATION_MODE_NONE", "none"},
+    {GST_INTERPOLATION_MODE_LINEAR, "GST_INTERPOLATION_MODE_LINEAR", "linear"},
+    {GST_INTERPOLATION_MODE_CUBIC, "GST_INTERPOLATION_MODE_CUBIC", "cubic"},
+    {0, NULL, NULL}
+  };
+
+  if (g_once_init_enter (&gtype)) {
+    GType tmp = g_enum_register_static ("GstLFOWaveform", values);
+    g_once_init_leave (&gtype, tmp);
+  }
+
+  return (GType) gtype;
+}
+
+
 #define _do_init \
   GST_DEBUG_CATEGORY_INIT (GST_CAT_DEFAULT, "interpolation control source", 0, \
     "timeline value interpolating control source")
@@ -57,7 +81,7 @@ G_DEFINE_TYPE_WITH_CODE (GstInterpolationControlSource,
 
 struct _GstInterpolationControlSourcePrivate
 {
-  GstInterpolateMode interpolation_mode;
+  GstInterpolationMode interpolation_mode;
 };
 
 /**
@@ -73,23 +97,9 @@ gst_interpolation_control_source_new (void)
   return g_object_newv (GST_TYPE_INTERPOLATION_CONTROL_SOURCE, 0, NULL);
 }
 
-/**
- * gst_interpolation_control_source_set_interpolation_mode:
- * @self: the #GstInterpolationControlSource object
- * @mode: interpolation mode
- *
- * Sets the given interpolation mode.
- *
- * <note><para>User interpolation is not yet available and quadratic interpolation
- * is deprecated and maps to cubic interpolation.</para></note>
- *
- * Returns: %TRUE if the interpolation mode could be set, %FALSE otherwise
- */
-/* *INDENT-OFF* */
-gboolean
-gst_interpolation_control_source_set_interpolation_mode (
-    GstInterpolationControlSource * self, GstInterpolateMode mode)
-/* *INDENT-ON* */
+static gboolean
+    gst_interpolation_control_source_set_interpolation_mode
+    (GstInterpolationControlSource * self, GstInterpolationMode mode)
 {
   gboolean ret = TRUE;
   GstControlSource *csource = GST_CONTROL_SOURCE (self);
@@ -100,11 +110,6 @@ gst_interpolation_control_source_set_interpolation_mode (
     return FALSE;
   }
 
-  if (mode == GST_INTERPOLATE_QUADRATIC) {
-    GST_WARNING ("Quadratic interpolation mode is deprecated, using cubic"
-        "interpolation mode");
-  }
-
   GST_TIMED_VALUE_CONTROL_SOURCE_LOCK (self);
   switch (gst_timed_value_control_source_get_base_value_type (
           (GstTimedValueControlSource *) self)) {
@@ -203,17 +208,61 @@ gst_interpolation_control_source_init (GstInterpolationControlSource * self)
   self->priv =
       G_TYPE_INSTANCE_GET_PRIVATE (self, GST_TYPE_INTERPOLATION_CONTROL_SOURCE,
       GstInterpolationControlSourcePrivate);
-  self->priv->interpolation_mode = GST_INTERPOLATE_NONE;
+  self->priv->interpolation_mode = GST_INTERPOLATION_MODE_NONE;
+}
+
+static void
+gst_interpolation_control_source_set_property (GObject * object, guint prop_id,
+    const GValue * value, GParamSpec * pspec)
+{
+  GstInterpolationControlSource *self =
+      GST_INTERPOLATION_CONTROL_SOURCE (object);
+
+  switch (prop_id) {
+    case PROP_MODE:
+      gst_interpolation_control_source_set_interpolation_mode (self,
+          (GstInterpolationMode) g_value_get_enum (value));
+      break;
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+      break;
+  }
+}
+
+static void
+gst_interpolation_control_source_get_property (GObject * object, guint prop_id,
+    GValue * value, GParamSpec * pspec)
+{
+  GstInterpolationControlSource *self =
+      GST_INTERPOLATION_CONTROL_SOURCE (object);
+
+  switch (prop_id) {
+    case PROP_MODE:
+      g_value_set_enum (value, self->priv->interpolation_mode);
+      break;
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+      break;
+  }
 }
 
 static void
 gst_interpolation_control_source_class_init (GstInterpolationControlSourceClass
     * klass)
 {
+  GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
   GstControlSourceClass *csource_class = GST_CONTROL_SOURCE_CLASS (klass);
 
   g_type_class_add_private (klass,
       sizeof (GstInterpolationControlSourcePrivate));
 
+  gobject_class->set_property = gst_interpolation_control_source_set_property;
+  gobject_class->get_property = gst_interpolation_control_source_get_property;
+
   csource_class->bind = gst_interpolation_control_source_bind;
+
+  g_object_class_install_property (gobject_class, PROP_MODE,
+      g_param_spec_enum ("mode", "Mode", "Interpolation mode",
+          GST_TYPE_INTERPOLATION_MODE, GST_INTERPOLATION_MODE_NONE,
+          G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
 }

diff --git a/libs/gst/controller/gstinterpolationcontrolsource.h b/libs/gst/controller/gstinterpolationcontrolsource.h
index 7b810cf..c4b602b 100644 (file)
--- a/libs/gst/controller/gstinterpolationcontrolsource.h
+++ b/libs/gst/controller/gstinterpolationcontrolsource.h
@@ -44,26 +44,26 @@ G_BEGIN_DECLS
 #define GST_INTERPOLATION_CONTROL_SOURCE_GET_CLASS(inst) \
   (G_TYPE_INSTANCE_GET_CLASS ((inst), GST_TYPE_INTERPOLATION_CONTROL_SOURCE, GstInterpolationControlSourceClass))
 
+#define GST_TYPE_INTERPOLATION_MODE (gst_interpolation_mode_get_type ())
+
 typedef struct _GstInterpolationControlSource GstInterpolationControlSource;
 typedef struct _GstInterpolationControlSourceClass GstInterpolationControlSourceClass;
 typedef struct _GstInterpolationControlSourcePrivate GstInterpolationControlSourcePrivate;
 
 /**
- * GstInterpolateMode:
- * @GST_INTERPOLATE_NONE: steps-like interpolation, default
- * @GST_INTERPOLATE_LINEAR: linear interpolation
- * @GST_INTERPOLATE_QUADRATIC: square interpolation (deprecated, maps to cubic)
- * @GST_INTERPOLATE_CUBIC: cubic interpolation
+ * GstInterpolationMode:
+ * @GST_INTERPOLATION_MODE_NONE: steps-like interpolation, default
+ * @GST_INTERPOLATION_MODE_LINEAR: linear interpolation
+ * @GST_INTERPOLATION_MODE_CUBIC: cubic interpolation
  *
  * The various interpolation modes available.
  */
 typedef enum
 {
-  GST_INTERPOLATE_NONE,
-  GST_INTERPOLATE_LINEAR,
-  GST_INTERPOLATE_QUADRATIC,
-  GST_INTERPOLATE_CUBIC
-} GstInterpolateMode;
+  GST_INTERPOLATION_MODE_NONE,
+  GST_INTERPOLATION_MODE_LINEAR,
+  GST_INTERPOLATION_MODE_CUBIC
+} GstInterpolationMode;
 
 /**
  * GstInterpolationControlSource:
@@ -86,14 +86,12 @@ struct _GstInterpolationControlSourceClass {
 };
 
 GType gst_interpolation_control_source_get_type (void);
+GType gst_interpolation_mode_get_type (void);
 
 /* Functions */
 
 GstInterpolationControlSource *
                 gst_interpolation_control_source_new            (void);
-gboolean        gst_interpolation_control_source_set_interpolation_mode
-                                                                (GstInterpolationControlSource *self,
-                                                                 GstInterpolateMode mode);
 
 G_END_DECLS
 

diff --git a/tests/benchmarks/controller.c b/tests/benchmarks/controller.c
index f196bd9..77ad899 100644 (file)
--- a/tests/benchmarks/controller.c
+++ b/tests/benchmarks/controller.c
@@ -114,8 +114,7 @@ main (gint argc, gchar * argv[])
   csource = gst_interpolation_control_source_new ();
   gst_object_set_control_source (GST_OBJECT (src), "freq",
       GST_CONTROL_SOURCE (csource));
-  gst_interpolation_control_source_set_interpolation_mode (csource,
-      GST_INTERPOLATE_LINEAR);
+  g_object_set (csource, "mode", GST_INTERPOLATION_MODE_LINEAR, NULL);
   g_value_init (&freq, G_TYPE_DOUBLE);
 
 

diff --git a/tests/check/libs/controller.c b/tests/check/libs/controller.c
index 3fc5117..73d8ac3 100644 (file)
--- a/tests/check/libs/controller.c
+++ b/tests/check/libs/controller.c
@@ -520,8 +520,7 @@ GST_START_TEST (controller_interpolate_none)
           GST_CONTROL_SOURCE (csource)));
 
   /* set interpolation mode */
-  fail_unless (gst_interpolation_control_source_set_interpolation_mode (csource,
-          GST_INTERPOLATE_NONE));
+  g_object_set (csource, "mode", GST_INTERPOLATION_MODE_NONE, NULL);
 
   fail_unless (gst_timed_value_control_source_get_count (
           (GstTimedValueControlSource *) csource) == 0);
@@ -574,8 +573,7 @@ GST_START_TEST (controller_interpolate_linear)
           GST_CONTROL_SOURCE (csource)));
 
   /* set interpolation mode */
-  fail_unless (gst_interpolation_control_source_set_interpolation_mode (csource,
-          GST_INTERPOLATE_LINEAR));
+  g_object_set (csource, "mode", GST_INTERPOLATION_MODE_LINEAR, NULL);
 
   /* set control values */
   g_value_init (&val_ulong, G_TYPE_ULONG);
@@ -621,8 +619,7 @@ GST_START_TEST (controller_interpolate_cubic)
           GST_CONTROL_SOURCE (csource)));
 
   /* set interpolation mode */
-  fail_unless (gst_interpolation_control_source_set_interpolation_mode (csource,
-          GST_INTERPOLATE_CUBIC));
+  g_object_set (csource, "mode", GST_INTERPOLATION_MODE_CUBIC, NULL);
 
   /* set control values */
   g_value_init (&val_double, G_TYPE_DOUBLE);
@@ -683,8 +680,7 @@ GST_START_TEST (controller_interpolate_cubic_too_few_cp)
           GST_CONTROL_SOURCE (csource)));
 
   /* set interpolation mode */
-  fail_unless (gst_interpolation_control_source_set_interpolation_mode (csource,
-          GST_INTERPOLATE_CUBIC));
+  g_object_set (csource, "mode", GST_INTERPOLATION_MODE_CUBIC, NULL);
 
   /* set 2 control values */
   g_value_init (&val_double, G_TYPE_DOUBLE);
@@ -714,33 +710,6 @@ GST_START_TEST (controller_interpolate_cubic_too_few_cp)
 
 GST_END_TEST;
 
-/* make sure we don't crash when someone sets an unsupported interpolation
- * mode */
-GST_START_TEST (controller_interpolate_unimplemented)
-{
-  GstInterpolationControlSource *csource;
-  GstElement *elem;
-
-  elem = gst_element_factory_make ("testmonosource", "test_source");
-
-  /* Get interpolation control source */
-  csource = gst_interpolation_control_source_new ();
-
-  fail_unless (csource != NULL);
-  fail_unless (gst_object_set_control_source (GST_OBJECT (elem), "ulong",
-          GST_CONTROL_SOURCE (csource)));
-
-  /* set completely bogus interpolation mode */
-  fail_if (gst_interpolation_control_source_set_interpolation_mode (csource,
-          (GstInterpolateMode) 93871));
-
-  g_object_unref (csource);
-
-  gst_object_unref (elem);
-}
-
-GST_END_TEST;
-
 /* test _unset() */
 GST_START_TEST (controller_interpolation_unset)
 {
@@ -759,8 +728,7 @@ GST_START_TEST (controller_interpolation_unset)
           GST_CONTROL_SOURCE (csource)));
 
   /* set interpolation mode */
-  fail_unless (gst_interpolation_control_source_set_interpolation_mode (csource,
-          GST_INTERPOLATE_NONE));
+  g_object_set (csource, "mode", GST_INTERPOLATION_MODE_NONE, NULL);
 
   /* set control values */
   g_value_init (&val_ulong, G_TYPE_ULONG);
@@ -831,8 +799,7 @@ GST_START_TEST (controller_interpolation_unset_all)
           GST_CONTROL_SOURCE (csource)));
 
   /* set interpolation mode */
-  fail_unless (gst_interpolation_control_source_set_interpolation_mode (csource,
-          GST_INTERPOLATE_NONE));
+  g_object_set (csource, "mode", GST_INTERPOLATION_MODE_NONE, NULL);
 
   /* set control values */
   g_value_init (&val_ulong, G_TYPE_ULONG);
@@ -885,8 +852,7 @@ GST_START_TEST (controller_interpolation_linear_value_array)
           GST_CONTROL_SOURCE (csource)));
 
   /* set interpolation mode */
-  fail_unless (gst_interpolation_control_source_set_interpolation_mode (csource,
-          GST_INTERPOLATE_LINEAR));
+  g_object_set (csource, "mode", GST_INTERPOLATION_MODE_LINEAR, NULL);
 
   /* set control values */
   g_value_init (&val_ulong, G_TYPE_ULONG);
@@ -934,8 +900,7 @@ GST_START_TEST (controller_interpolation_linear_invalid_values)
           GST_CONTROL_SOURCE (csource)));
 
   /* set interpolation mode */
-  fail_unless (gst_interpolation_control_source_set_interpolation_mode (csource,
-          GST_INTERPOLATE_LINEAR));
+  g_object_set (csource, "mode", GST_INTERPOLATION_MODE_LINEAR, NULL);
 
   /* set control values */
   g_value_init (&val_float, G_TYPE_FLOAT);
@@ -993,8 +958,7 @@ GST_START_TEST (controller_interpolation_linear_default_values)
           GST_CONTROL_SOURCE (csource)));
 
   /* set interpolation mode */
-  fail_unless (gst_interpolation_control_source_set_interpolation_mode (csource,
-          GST_INTERPOLATE_LINEAR));
+  g_object_set (csource, "mode", GST_INTERPOLATION_MODE_LINEAR, NULL);
 
   g_value_init (&val_ulong, G_TYPE_ULONG);
 
@@ -1084,10 +1048,8 @@ GST_START_TEST (controller_interpolate_linear_disabled)
           GST_CONTROL_SOURCE (csource2)));
 
   /* set interpolation mode */
-  fail_unless (gst_interpolation_control_source_set_interpolation_mode (csource,
-          GST_INTERPOLATE_LINEAR));
-  fail_unless (gst_interpolation_control_source_set_interpolation_mode
-      (csource2, GST_INTERPOLATE_LINEAR));
+  g_object_set (csource, "mode", GST_INTERPOLATION_MODE_LINEAR, NULL);
+  g_object_set (csource2, "mode", GST_INTERPOLATION_MODE_LINEAR, NULL);
 
   /* set control values */
   g_value_init (&val_ulong, G_TYPE_ULONG);
@@ -1223,8 +1185,7 @@ GST_START_TEST (controller_interpolation_set_from_list)
           GST_CONTROL_SOURCE (csource)));
 
   /* set interpolation mode */
-  fail_unless (gst_interpolation_control_source_set_interpolation_mode (csource,
-          GST_INTERPOLATE_LINEAR));
+  g_object_set (csource, "mode", GST_INTERPOLATION_MODE_LINEAR, NULL);
 
   /* set control value */
   tval = g_new0 (GstTimedValue, 1);
@@ -1272,8 +1233,7 @@ GST_START_TEST (controller_interpolate_linear_before_ts0)
           GST_CONTROL_SOURCE (csource)));
 
   /* set interpolation mode */
-  fail_unless (gst_interpolation_control_source_set_interpolation_mode (csource,
-          GST_INTERPOLATE_LINEAR));
+  g_object_set (csource, "mode", GST_INTERPOLATION_MODE_LINEAR, NULL);
 
   /* set control values */
   g_value_init (&val_ulong, G_TYPE_ULONG);
@@ -1325,8 +1285,7 @@ GST_START_TEST (controller_interpolation_cp_count)
           GST_CONTROL_SOURCE (csource)));
 
   /* set interpolation mode */
-  fail_unless (gst_interpolation_control_source_set_interpolation_mode (csource,
-          GST_INTERPOLATE_NONE));
+  g_object_set (csource, "mode", GST_INTERPOLATION_MODE_NONE, NULL);
 
   fail_unless (gst_timed_value_control_source_get_count (
           (GstTimedValueControlSource *) csource) == 0);
@@ -1907,7 +1866,6 @@ gst_controller_suite (void)
   tcase_add_test (tc, controller_interpolate_linear);
   tcase_add_test (tc, controller_interpolate_cubic);
   tcase_add_test (tc, controller_interpolate_cubic_too_few_cp);
-  tcase_add_test (tc, controller_interpolate_unimplemented);
   tcase_add_test (tc, controller_interpolation_unset);
   tcase_add_test (tc, controller_interpolation_unset_all);
   tcase_add_test (tc, controller_interpolation_linear_value_array);

diff --git a/tests/examples/controller/audio-example.c b/tests/examples/controller/audio-example.c
index c0acba6..cb347da 100644 (file)
--- a/tests/examples/controller/audio-example.c
+++ b/tests/examples/controller/audio-example.c
@@ -58,10 +58,8 @@ main (gint argc, gchar ** argv)
 
   /* Set interpolation mode */
 
-  gst_interpolation_control_source_set_interpolation_mode (csource1,
-      GST_INTERPOLATE_LINEAR);
-  gst_interpolation_control_source_set_interpolation_mode (csource2,
-      GST_INTERPOLATE_LINEAR);
+  g_object_set (csource1, "mode", GST_INTERPOLATION_MODE_LINEAR, NULL);
+  g_object_set (csource2, "mode", GST_INTERPOLATION_MODE_LINEAR, NULL);
 
   /* set control values */
   g_value_init (&vol, G_TYPE_DOUBLE);