*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
+ * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
*/
#ifndef __GST_CONTROL_SOURCE_H__
struct _GstTimedValue
{
GstClockTime timestamp;
- GValue value;
+ gdouble value;
};
/**
- * GstValueArray:
- * @property_name: the name of the property this array belongs to
- * @nbsamples: number of samples requested
- * @sample_interval: interval between each sample
- * @values: pointer to the array
- *
- * Structure to receive multiple values at once.
- */
-struct _GstValueArray
-{
- const gchar *property_name;
- gint nbsamples;
- GstClockTime sample_interval;
- gpointer *values;
-};
-
-/**
- * GstControlSourceGetValue
+ * GstControlSourceGetValue:
* @self: the #GstControlSource instance
* @timestamp: timestamp for which a value should be calculated
- * @value: a #GValue which will be set to the result. It must be initialized to the correct type.
+ * @value: a value which will be set to the result.
*
* Function for returning a value for a given timestamp.
*
* Returns: %TRUE if the value was successfully calculated.
*
*/
-typedef gboolean (* GstControlSourceGetValue) (GstControlSource *self, GstClockTime timestamp, GValue *value);
+typedef gboolean (* GstControlSourceGetValue) (GstControlSource *self,
+ GstClockTime timestamp, gdouble *value);
/**
- * GstControlSourceGetValueArray
+ * GstControlSourceGetValueArray:
* @self: the #GstControlSource instance
* @timestamp: timestamp for which a value should be calculated
- * @value_array: array to put control-values in
+ * @interval: the time spacing between subsequent values
+ * @n_values: the number of values
+ * @values: array to put control-values in
*
- * Function for returning a #GstValueArray for a given timestamp.
+ * Function for returning an array of values for starting at a given timestamp.
*
* Returns: %TRUE if the values were successfully calculated.
*
*/
-typedef gboolean (* GstControlSourceGetValueArray) (GstControlSource *self, GstClockTime timestamp, GstValueArray *value_array);
-
-/**
- * GstControlSourceBind
- * @self: the #GstControlSource instance
- * @pspec: #GParamSpec that should be bound to
- *
- * Function for binding a #GstControlSource to a #GParamSpec.
- *
- * Returns: %TRUE if the property could be bound to the #GstControlSource, %FALSE otherwise.
- */
-typedef gboolean (* GstControlSourceBind) (GstControlSource *self, GParamSpec *pspec);
+typedef gboolean (* GstControlSourceGetValueArray) (GstControlSource *self,
+ GstClockTime timestamp, GstClockTime interval, guint n_values, gdouble *values);
/**
* GstControlSource:
* @get_value: Function for returning a value for a given timestamp
- * @get_value_array: Function for returning a #GstValueArray for a given timestamp
+ * @get_value_array: Function for returning a values array for a given timestamp
*
* The instance structure of #GstControlSource.
*/
struct _GstControlSource {
- GObject parent;
+ GstObject parent;
/*< public >*/
GstControlSourceGetValue get_value; /* Returns the value for a property at a given timestamp */
GstControlSourceGetValueArray get_value_array; /* Returns values for a property in a given timespan */
/*< private >*/
- gboolean bound;
gpointer _gst_reserved[GST_PADDING];
};
/**
* GstControlSourceClass:
* @parent_class: Parent class
- * @bind: Class method for binding the #GstControlSource to a specific GParamSpec
*
* The class structure of #GstControlSource.
*/
struct _GstControlSourceClass
{
- GObjectClass parent_class;
-
- GstControlSourceBind bind; /* Binds the GstControlSource to a specific GParamSpec */
+ GstObjectClass parent_class;
/*< private >*/
gpointer _gst_reserved[GST_PADDING];
};
-GType gst_control_source_get_type (void);
+GST_API
+GType gst_control_source_get_type (void);
/* Functions */
+
+GST_API
gboolean gst_control_source_get_value (GstControlSource *self, GstClockTime timestamp,
- GValue *value);
+ gdouble *value);
+GST_API
gboolean gst_control_source_get_value_array (GstControlSource *self, GstClockTime timestamp,
- GstValueArray *value_array);
-
-gboolean gst_control_source_bind (GstControlSource *self, GParamSpec *pspec);
+ GstClockTime interval, guint n_values,
+ gdouble *values);
+#ifdef G_DEFINE_AUTOPTR_CLEANUP_FUNC
+G_DEFINE_AUTOPTR_CLEANUP_FUNC(GstControlSource, gst_object_unref)
+#endif
+
+#ifdef G_DEFINE_AUTOPTR_CLEANUP_FUNC
+G_DEFINE_AUTOPTR_CLEANUP_FUNC(GstValueArray, gst_object_unref)
+#endif
G_END_DECLS