1 files changed, 119 insertions, 0 deletions
diff --git a/gst/gstcontrolbinding.h b/gst/gstcontrolbinding.h
new file mode 100644
index 0000000..96652fa
--- /dev/null
+++ b/gst/gstcontrolbinding.h
@@ -0,0 +1,119 @@
+/* GStreamer
+ *
+ * Copyright (C) 2011 Stefan Sauer <ensonic@users.sf.net>
+ *
+ * gstcontrolbinding.h: Attachment for control sources
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ *
+ * 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.
+ */
+
+#ifndef __GST_CONTROL_BINDING_H__
+#define __GST_CONTROL_BINDING_H__
+
+#include <gst/gstconfig.h>
+
+#include <glib-object.h>
+
+#include <gst/gstcontrolsource.h>
+
+G_BEGIN_DECLS
+
+#define GST_TYPE_CONTROL_BINDING \
+  (gst_control_binding_get_type())
+#define GST_CONTROL_BINDING(obj) \
+  (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_CONTROL_BINDING,GstControlBinding))
+#define GST_CONTROL_BINDING_CLASS(klass) \
+  (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_CONTROL_BINDING,GstControlBindingClass))
+#define GST_IS_CONTROL_BINDING(obj) \
+  (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_CONTROL_BINDING))
+#define GST_IS_CONTROL_BINDING_CLASS(klass) \
+  (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_CONTROL_BINDING))
+#define GST_CONTROL_BINDING_GET_CLASS(obj) \
+  (G_TYPE_INSTANCE_GET_CLASS ((obj), GST_TYPE_CONTOL_SOURCE, GstControlBindingClass))
+
+typedef struct _GstControlBinding GstControlBinding;
+typedef struct _GstControlBindingClass GstControlBindingClass;
+
+/**
+ * GstControlBindingConvert:
+ * @self: the #GstControlBinding instance
+ * @src_value: the value returned by the cotnrol source
+ * @dest_value: the target GValue
+ *
+ * Function to map a control-value to the target GValue.
+ */
+typedef void (* GstControlBindingConvert) (GstControlBinding *self, gdouble src_value, GValue *dest_value);
+
+/**
+ * GstControlBinding:
+ * @name: name of the property of this binding
+ *
+ * The instance structure of #GstControlBinding.
+ */
+struct _GstControlBinding {
+  GstObject parent;
+  
+  /*< public >*/
+  gchar *name;                  /* name of the property */
+  GParamSpec *pspec;            /* GParamSpec for this property */
+
+  /*< private >*/
+  GstObject *object;            /* GstObject owning the property
+                                 * (== parent when bound) */
+  gboolean disabled;
+
+  gpointer _gst_reserved[GST_PADDING];
+};
+
+/**
+ * GstControlBindingClass:
+ * @parent_class: Parent class
+ * @convert: Class method to convert control-values
+ *
+ * The class structure of #GstControlBinding.
+ */
+
+struct _GstControlBindingClass
+{
+  GstObjectClass parent_class;
+
+  /* virtual methods */
+  gboolean (* sync_values) (GstControlBinding *self, GstObject *object, GstClockTime timestamp, GstClockTime last_sync);
+  GValue * (* get_value) (GstControlBinding *self, GstClockTime timestamp);
+  gboolean (* get_value_array) (GstControlBinding *self, GstClockTime timestamp,GstClockTime interval, guint n_values, GValue *values);
+
+  /*< private >*/
+  gpointer _gst_reserved[GST_PADDING];
+};
+
+#define GST_CONTROL_BINDING_PSPEC(cb) (((GstControlBinding *) cb)->pspec)
+
+GType gst_control_binding_get_type (void);
+
+/* Functions */
+
+gboolean            gst_control_binding_sync_values        (GstControlBinding * self, GstObject *object, 
+                                                            GstClockTime timestamp, GstClockTime last_sync);
+GValue *            gst_control_binding_get_value          (GstControlBinding *binding,
+                                                            GstClockTime timestamp);
+gboolean            gst_control_binding_get_value_array    (GstControlBinding *binding, GstClockTime timestamp,
+                                                            GstClockTime interval, guint n_values, GValue *values);
+
+void                gst_control_binding_set_disabled       (GstControlBinding * self, gboolean disabled);
+gboolean            gst_control_binding_is_disabled        (GstControlBinding * self);
+G_END_DECLS
+
+#endif /* __GST_CONTROL_BINDING_H__ */