--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gstreamer_core/libs/gst/controller/gstinterpolationcontrolsourceprivate.h	Thu Dec 17 08:53:32 2009 +0200
@@ -0,0 +1,100 @@
+/* GStreamer
+ *
+ * Copyright (C) 2007 Sebastian Dröge <slomo@circular-chaos.org>
+ *
+ * gstinterpolationcontrolsourceprivate.h: Private declarations for the
+ *                                         GstInterpolationControlSource
+ *
+ * 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_INTERPOLATION_CONTROL_SOURCE_PRIVATE_H__
+#define __GST_INTERPOLATION_CONTROL_SOURCE_PRIVATE_H__
+
+/**
+ * GstInterpolateMethod:
+ *
+ * Function pointer structure to do user-defined interpolation methods
+ */
+typedef struct _GstInterpolateMethod
+{
+  GstControlSourceGetValue get_int;
+  GstControlSourceGetValueArray get_int_value_array;
+  GstControlSourceGetValue get_uint;
+  GstControlSourceGetValueArray get_uint_value_array;
+  GstControlSourceGetValue get_long;
+  GstControlSourceGetValueArray get_long_value_array;
+  GstControlSourceGetValue get_ulong;
+  GstControlSourceGetValueArray get_ulong_value_array;
+  GstControlSourceGetValue get_int64;
+  GstControlSourceGetValueArray get_int64_value_array;
+  GstControlSourceGetValue get_uint64;
+  GstControlSourceGetValueArray get_uint64_value_array;
+  GstControlSourceGetValue get_float;
+  GstControlSourceGetValueArray get_float_value_array;
+  GstControlSourceGetValue get_double;
+  GstControlSourceGetValueArray get_double_value_array;
+  GstControlSourceGetValue get_boolean;
+  GstControlSourceGetValueArray get_boolean_value_array;
+  GstControlSourceGetValue get_enum;
+  GstControlSourceGetValueArray get_enum_value_array;
+  GstControlSourceGetValue get_string;
+  GstControlSourceGetValueArray get_string_value_array;
+} GstInterpolateMethod;
+
+/**
+ * GstControlPoint:
+ *
+ * a internal structure for value+time and various temporary
+ * values used for interpolation. This "inherits" from
+ * GstTimedValue.
+ */
+typedef struct _GstControlPoint
+{
+  /* fields from GstTimedValue. DO NOT CHANGE! */
+  GstClockTime timestamp;       /* timestamp of the value change */
+  GValue value;                 /* the new value */
+
+  /* internal fields */
+
+  /* Caches for the interpolators */
+  union {
+    struct {
+      gdouble h;
+      gdouble z;
+    } cubic;
+  } cache;
+
+} GstControlPoint;
+
+struct _GstInterpolationControlSourcePrivate
+{
+  GType type;                   /* type of the handled property */
+  GType base;                   /* base-type of the handled property */
+
+  GValue default_value;         /* default value for the handled property */
+  GValue minimum_value;         /* min value for the handled property */
+  GValue maximum_value;         /* max value for the handled property */
+  GstInterpolateMode interpolation_mode;
+  
+  GList *values;                /* List of GstControlPoint */
+  gint nvalues;                 /* Number of control points */
+  GList *last_requested_value;  /* last search result, can be used for incremental searches */
+  gboolean valid_cache;
+};
+
+#endif /* __GST_INTERPOLATION_CONTROL_SOURCE_PRIVATE_H__ */
+