"dynamic parameter control sources");
G_DEFINE_ABSTRACT_TYPE_WITH_CODE (GstControlSource, gst_control_source,
- G_TYPE_OBJECT, _do_init);
+ GST_TYPE_OBJECT, _do_init);
+
+static GObject *gst_control_source_constructor (GType type,
+ guint n_construct_params, GObjectConstructParam * construct_params);
static void
gst_control_source_class_init (GstControlSourceClass * klass)
{
- //GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
+ GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
- /* Has to be implemented by children */
- klass->bind = NULL;
+ gobject_class->constructor = gst_control_source_constructor;
}
static void
{
self->get_value = NULL;
self->get_value_array = NULL;
- self->bound = FALSE;
+}
+
+static GObject *
+gst_control_source_constructor (GType type, guint n_construct_params,
+ GObjectConstructParam * construct_params)
+{
+ GObject *self;
+
+ self =
+ G_OBJECT_CLASS (gst_control_source_parent_class)->constructor (type,
+ n_construct_params, construct_params);
+ gst_object_ref_sink (self);
+
+ return self;
}
/**
*/
gboolean
gst_control_source_get_value (GstControlSource * self, GstClockTime timestamp,
- GValue * value)
+ gdouble * value)
{
g_return_val_if_fail (GST_IS_CONTROL_SOURCE (self), FALSE);
/**
* gst_control_source_get_value_array:
* @self: the #GstControlSource object
- * @timestamp: the time that should be processed
+ * @timestamp: the first timestamp
+ * @interval: the time steps
+ * @n_values: the number of values to fetch
* @value_array: array to put control-values in
*
- * Gets an array of values for one element property.
- *
- * All fields of @value_array must be filled correctly. Especially the
- * @value_array->values array must be big enough to keep the requested amount
- * of values.
- *
- * The type of the values in the array is the same as the property's type.
+ * Gets an array of values for for this #GstControlSource.
*
* Returns: %TRUE if the given array could be filled, %FALSE otherwise
*/
gboolean
gst_control_source_get_value_array (GstControlSource * self,
GstClockTime timestamp, GstClockTime interval, guint n_values,
- gpointer values)
+ gdouble * values)
{
g_return_val_if_fail (GST_IS_CONTROL_SOURCE (self), FALSE);
return FALSE;
}
}
-
-/**
- * gst_control_source_bind:
- * @self: the #GstControlSource object
- * @pspec: #GParamSpec for the property for which this #GstControlSource should generate values.
- *
- * Binds a #GstControlSource to a specific property. This must be called only once for a
- * #GstControlSource.
- *
- * Returns: %TRUE if the #GstControlSource was bound correctly, %FALSE otherwise.
- */
-gboolean
-gst_control_source_bind (GstControlSource * self, GParamSpec * pspec)
-{
- gboolean ret = FALSE;
-
- g_return_val_if_fail (GST_IS_CONTROL_SOURCE (self), FALSE);
- g_return_val_if_fail (GST_CONTROL_SOURCE_GET_CLASS (self)->bind, FALSE);
- g_return_val_if_fail (!self->bound, FALSE);
-
- ret = GST_CONTROL_SOURCE_GET_CLASS (self)->bind (self, pspec);
-
- if (ret) {
- GST_DEBUG ("bound control source for param %s", pspec->name);
- self->bound = TRUE;
- } else {
- GST_DEBUG ("failed to bind control source for param %s", pspec->name);
- }
-
- return ret;
-}