gstreamer_core/tsrc/check/libs/controller/src/controller.c
changeset 0 0e761a78d257
child 8 4a7fac7dd34a
child 29 567bb019e3e3
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gstreamer_core/tsrc/check/libs/controller/src/controller.c	Thu Dec 17 08:53:32 2009 +0200
@@ -0,0 +1,2440 @@
+/* GStreamer
+ *
+ * unit test for the controller library
+ *
+ * Copyright (C) <2005> Stefan Kost <ensonic at users dot sf dot net>
+ * Copyright (C) <2006-2007> Sebastian Dröge <slomo@circular-chaos.org>
+ *
+ * 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.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+
+#include "libgstreamer_wsd_solution.h" 
+
+#define LOG_FILE "c:\\logs\\controller_logs.txt"
+#include <gst/gst_global.h> 
+#include "std_log_result.h" 
+#define LOG_FILENAME_LINE __FILE__, __LINE__
+
+#include <gst/gst.h>
+#include <gst/check/gstcheck.h>
+#include <gst/controller/gstcontroller.h>
+#include <gst/controller/gstcontrolsource.h>
+#include <gst/controller/gstinterpolationcontrolsource.h>
+#include <gst/controller/gstlfocontrolsource.h>
+
+#if EMULATOR
+static GET_GLOBAL_VAR_FROM_TLS(raised_critical,gstcheck,gboolean)
+#define _gst_check_raised_critical (*GET_GSTREAMER_WSD_VAR_NAME(raised_critical,gstcheck,g)())
+#else 
+extern gboolean _gst_check_raised_critical ;
+#endif
+//gboolean _gst_check_raised_warning = FALSE;
+#if EMULATOR
+static GET_GLOBAL_VAR_FROM_TLS(raised_warning,gstcheck,gboolean)
+#define _gst_check_raised_warning (*GET_GSTREAMER_WSD_VAR_NAME(raised_warning,gstcheck,g)())
+#else 
+extern gboolean _gst_check_raised_warning ;
+#endif
+//gboolean _gst_check_expecting_log = FALSE;
+#if EMULATOR
+static GET_GLOBAL_VAR_FROM_TLS(expecting_log,gstcheck,gboolean)
+#define _gst_check_expecting_log (*GET_GSTREAMER_WSD_VAR_NAME(expecting_log,gstcheck,g)())
+#else 
+extern gboolean _gst_check_expecting_log ;
+#endif
+
+//gboolean _gst_check_expecting_log = FALSE;
+#if EMULATOR
+static GET_GLOBAL_VAR_FROM_TLS(threads_running,gstcheck,gboolean)
+#define _gst_check_threads_running (*GET_GSTREAMER_WSD_VAR_NAME(threads_running,gstcheck,g)())
+#else 
+extern gboolean _gst_check_threads_running ;
+#endif
+
+
+#if EMULATOR
+GET_GLOBAL_VAR_FROM_TLS(buffers,gstcheck,GList*)
+#define buffers (*GET_GSTREAMER_WSD_VAR_NAME(buffers,gstcheck,g)())
+#else 
+extern GList *buffers;
+#endif
+
+
+#if EMULATOR
+GET_GLOBAL_VAR_FROM_TLS(thread_list,gstcheck,GList*)
+#define thread_list (*GET_GSTREAMER_WSD_VAR_NAME(thread_list,gstcheck,g)())
+#else 
+extern GList *thread_list;
+#endif
+
+//GMutex *mutex;
+#if EMULATOR
+GET_GLOBAL_VAR_FROM_TLS(mutex,gstcheck,GMutex*)
+#define mutex (*GET_GSTREAMER_WSD_VAR_NAME(mutex,gstcheck,g)())
+#else 
+extern GMutex *mutex;
+#endif
+
+//GCond *start_cond;              /* used to notify main thread of thread startups */
+#if EMULATOR
+GET_GLOBAL_VAR_FROM_TLS(start_cond,gstcheck,GCond*)
+#define start_cond (*GET_GSTREAMER_WSD_VAR_NAME(start_cond,gstcheck,g)())
+#else 
+extern GCond *start_cond;
+#endif
+
+//GCond *sync_cond;               /* used to synchronize all threads and main thread */
+#if EMULATOR
+GET_GLOBAL_VAR_FROM_TLS(sync_cond,gstcheck,GCond*)
+#define sync_cond (*GET_GSTREAMER_WSD_VAR_NAME(sync_cond,gstcheck,g)())
+#else 
+extern GCond *sync_cond;
+#endif
+
+
+void create_xml(int result)
+{
+    if(result)
+        assert_failed = 1;
+    
+    testResultXml(xmlfile);
+    close_log_file();
+}
+
+
+/* LOCAL TEST ELEMENT */
+
+enum
+{
+  ARG_ULONG = 1,
+  ARG_FLOAT,
+  ARG_DOUBLE,
+  ARG_BOOLEAN,
+  ARG_READONLY,
+  ARG_STATIC,
+  ARG_CONSTRUCTONLY,
+  ARG_COUNT
+};
+
+#define GST_TYPE_TEST_MONO_SOURCE            (gst_test_mono_source_get_type ())
+#define GST_TEST_MONO_SOURCE(obj)            (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_TEST_MONO_SOURCE, GstTestMonoSource))
+#define GST_TEST_MONO_SOURCE_CLASS(klass)    (G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_TEST_MONO_SOURCE, GstTestMonoSourceClass))
+#define GST_IS_TEST_MONO_SOURCE(obj)         (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_TEST_MONO_SOURCE))
+#define GST_IS_TEST_MONO_SOURCE_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_TEST_MONO_SOURCE))
+#define GST_TEST_MONO_SOURCE_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj), GST_TYPE_TEST_MONO_SOURCE, GstTestMonoSourceClass))
+
+typedef struct _GstTestMonoSource GstTestMonoSource;
+typedef struct _GstTestMonoSourceClass GstTestMonoSourceClass;
+
+struct _GstTestMonoSource
+{
+  GstElement parent;
+  gulong val_ulong;
+  gfloat val_float;
+  gdouble val_double;
+  gboolean val_boolean;
+};
+struct _GstTestMonoSourceClass
+{
+  GstElementClass parent_class;
+};
+
+static GType gst_test_mono_source_get_type (void);
+
+static void
+gst_test_mono_source_get_property (GObject * object,
+    guint property_id, GValue * value, GParamSpec * pspec)
+{
+  GstTestMonoSource *self = GST_TEST_MONO_SOURCE (object);
+
+  switch (property_id) {
+    case ARG_ULONG:
+      g_value_set_ulong (value, self->val_ulong);
+      break;
+    case ARG_FLOAT:
+      g_value_set_float (value, self->val_float);
+      break;
+    case ARG_DOUBLE:
+      g_value_set_double (value, self->val_double);
+      break;
+    case ARG_BOOLEAN:
+      g_value_set_boolean (value, self->val_boolean);
+      break;
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
+      break;
+  }
+}
+
+static void
+gst_test_mono_source_set_property (GObject * object,
+    guint property_id, const GValue * value, GParamSpec * pspec)
+{
+  GstTestMonoSource *self = GST_TEST_MONO_SOURCE (object);
+
+  switch (property_id) {
+    case ARG_ULONG:
+      self->val_ulong = g_value_get_ulong (value);
+      break;
+    case ARG_FLOAT:
+      self->val_float = g_value_get_float (value);
+      break;
+    case ARG_DOUBLE:
+      self->val_double = g_value_get_double (value);
+      break;
+    case ARG_BOOLEAN:
+      self->val_boolean = g_value_get_boolean (value);
+      break;
+    case ARG_CONSTRUCTONLY:
+      break;
+    default:
+      G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
+      break;
+  }
+}
+
+static void
+gst_test_mono_source_class_init (GstTestMonoSourceClass * klass)
+{
+  GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
+
+  gobject_class->set_property = gst_test_mono_source_set_property;
+  gobject_class->get_property = gst_test_mono_source_get_property;
+
+  g_object_class_install_property (gobject_class, ARG_ULONG,
+      g_param_spec_ulong ("ulong",
+          "ulong prop",
+          "ulong number parameter for the test_mono_source",
+          0, G_MAXULONG, 0, G_PARAM_READWRITE | GST_PARAM_CONTROLLABLE));
+
+  g_object_class_install_property (gobject_class, ARG_FLOAT,
+      g_param_spec_float ("float",
+          "float prop",
+          "float number parameter for the test_mono_source",
+          0.0, 100.0, 0.0, G_PARAM_READWRITE | GST_PARAM_CONTROLLABLE));
+
+  g_object_class_install_property (gobject_class, ARG_DOUBLE,
+      g_param_spec_double ("double",
+          "double prop",
+          "double number parameter for the test_mono_source",
+          0.0, 100.0, 0.0, G_PARAM_READWRITE | GST_PARAM_CONTROLLABLE));
+
+  g_object_class_install_property (gobject_class, ARG_BOOLEAN,
+      g_param_spec_boolean ("boolean",
+          "boolean prop",
+          "boolean parameter for the test_mono_source",
+          FALSE, G_PARAM_READWRITE | GST_PARAM_CONTROLLABLE));
+
+  g_object_class_install_property (gobject_class, ARG_READONLY,
+      g_param_spec_ulong ("readonly",
+          "readonly prop",
+          "readonly parameter for the test_mono_source",
+          0, G_MAXULONG, 0, G_PARAM_READABLE | GST_PARAM_CONTROLLABLE));
+
+  g_object_class_install_property (gobject_class, ARG_STATIC,
+      g_param_spec_ulong ("static",
+          "static prop",
+          "static parameter for the test_mono_source",
+          0, G_MAXULONG, 0, G_PARAM_READWRITE));
+
+  g_object_class_install_property (gobject_class, ARG_CONSTRUCTONLY,
+      g_param_spec_ulong ("construct-only",
+          "construct-only prop",
+          "construct-only parameter for the test_mono_source",
+          0, G_MAXULONG, 0, G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY));
+}
+
+static void
+gst_test_mono_source_base_init (GstTestMonoSourceClass * klass)
+{
+  static const GstElementDetails details = {
+    "Monophonic source for unit tests",
+    "Source/Audio/MonoSource",
+    "Use in unit tests",
+    "Stefan Kost <ensonic@users.sf.net>"
+  };
+  GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
+
+  gst_element_class_set_details (element_class, &details);
+}
+
+static GType
+gst_test_mono_source_get_type (void)
+{
+  static GType type = 0;
+
+  if (type == 0) {
+    static const GTypeInfo info = {
+      (guint16) sizeof (GstTestMonoSourceClass),
+      (GBaseInitFunc) gst_test_mono_source_base_init,   // base_init
+      NULL,                     // base_finalize
+      (GClassInitFunc) gst_test_mono_source_class_init, // class_init
+      NULL,                     // class_finalize
+      NULL,                     // class_data
+      (guint16) sizeof (GstTestMonoSource),
+      0,                        // n_preallocs
+      NULL,                     // instance_init
+      NULL                      // value_table
+    };
+    type =
+        g_type_register_static (GST_TYPE_ELEMENT, "GstTestMonoSource", &info,
+        0);
+  }
+  return type;
+}
+
+/* so we don't have to paste the gst_element_register into 50 places below */
+static gboolean
+local_gst_controller_init (int *argc, char ***argv)
+{
+  fail_unless (gst_controller_init (argc, argv));
+
+  fail_unless (gst_element_register (NULL, "testmonosource", GST_RANK_NONE,
+          GST_TYPE_TEST_MONO_SOURCE));
+
+  return TRUE;
+}
+
+#define gst_controller_init(a,b) local_gst_controller_init(a,b)
+
+/* TESTS */
+/* double init should not harm */
+void controller_init()
+{
+	xmlfile = "controller_init";
+  std_log(LOG_FILENAME_LINE, "Test Started controller_init");
+  
+  gst_controller_init (NULL, NULL);
+  gst_controller_init (NULL, NULL);
+  gst_controller_init (NULL, NULL);
+  gst_controller_init (NULL, NULL);
+  
+  std_log(LOG_FILENAME_LINE, "Test Successful");
+  create_xml(0); 
+  
+}
+
+
+
+/* tests for an element with no controlled params */
+void controller_new_fail1()
+{
+  GstController *ctrl;
+  GstElement *elem;
+
+		xmlfile = "controller_new_fail1";
+  std_log(LOG_FILENAME_LINE, "Test Started controller_new_fail1");
+  
+  gst_controller_init (NULL, NULL);
+
+  elem = gst_element_factory_make ("fakesrc", "test_source");
+
+  /* that property should not exist */
+  ctrl = gst_controller_new (G_OBJECT (elem), "_schrompf_", NULL);
+  fail_unless (ctrl == NULL, NULL);
+
+  gst_object_unref (elem);
+  
+    std_log(LOG_FILENAME_LINE, "Test Successful");
+  create_xml(0); 
+}
+
+
+
+/* tests for an element with controlled params, but none given */
+void controller_new_fail2()
+{
+  GstController *ctrl;
+  GstElement *elem;
+
+		xmlfile = "controller_new_fail2";
+  std_log(LOG_FILENAME_LINE, "Test Started controller_new_fail2");
+
+
+  gst_controller_init (NULL, NULL);
+
+  elem = gst_element_factory_make ("testmonosource", "test_source");
+
+  /* no property given */
+  ctrl = gst_controller_new (G_OBJECT (elem), NULL);
+  fail_unless (ctrl == NULL, NULL);
+
+  gst_object_unref (elem);
+  
+     std_log(LOG_FILENAME_LINE, "Test Successful");
+  create_xml(0); 
+  
+}
+
+
+
+/* tests for readonly params */
+void controller_new_fail3()
+{
+  GstController *ctrl;
+  GstElement *elem;
+  
+  		xmlfile = "controller_new_fail3";
+  std_log(LOG_FILENAME_LINE, "Test Started controller_new_fail3");
+
+
+
+  gst_controller_init (NULL, NULL);
+
+  elem = gst_element_factory_make ("testmonosource", "test_source");
+
+  /* that property should exist and but is readonly */
+  ASSERT_CRITICAL (ctrl =
+      gst_controller_new (G_OBJECT (elem), "readonly", NULL));
+  fail_unless (ctrl == NULL, NULL);
+
+  gst_object_unref (elem);
+  
+     std_log(LOG_FILENAME_LINE, "Test Successful");
+  create_xml(0); 
+  
+}
+
+
+
+/* tests for static params */
+void controller_new_fail4()
+{
+  GstController *ctrl;
+  GstElement *elem;
+
+
+		xmlfile = "controller_new_fail4";
+  std_log(LOG_FILENAME_LINE, "Test Started controller_new_fail4");
+
+
+  gst_controller_init (NULL, NULL);
+
+  elem = gst_element_factory_make ("testmonosource", "test_source");
+
+  /* that property should exist and but is not controlable */
+  ASSERT_CRITICAL (ctrl = gst_controller_new (G_OBJECT (elem), "static", NULL));
+  fail_unless (ctrl == NULL, NULL);
+
+  gst_object_unref (elem);
+  
+     std_log(LOG_FILENAME_LINE, "Test Successful");
+  create_xml(0); 
+  
+}
+
+
+
+/* tests for static params */
+void controller_new_fail5()
+{
+  GstController *ctrl;
+  GstElement *elem;
+
+		xmlfile = "controller_new_fail5";
+  std_log(LOG_FILENAME_LINE, "Test Started controller_new_fail5");
+  
+  gst_controller_init (NULL, NULL);
+
+  elem = gst_element_factory_make ("testmonosource", "test_source");
+
+  /* that property should exist and but is construct-only */
+  ASSERT_CRITICAL (ctrl =
+      gst_controller_new (G_OBJECT (elem), "construct-only", NULL));
+  fail_unless (ctrl == NULL, NULL);
+
+  gst_object_unref (elem);
+  
+    std_log(LOG_FILENAME_LINE, "Test Successful");
+  create_xml(0); 
+  
+}
+
+
+
+
+/* tests for an element with controlled params */
+void controller_new_okay1()
+{
+  GstController *ctrl;
+  GstElement *elem;
+
+	xmlfile = "controller_new_okay1";
+  std_log(LOG_FILENAME_LINE, "Test Started controller_new_okay1");
+  
+  gst_controller_init (NULL, NULL);
+
+  elem = gst_element_factory_make ("testmonosource", "test_source");
+
+  /* that property should exist and should be controllable */
+  ctrl = gst_controller_new (G_OBJECT (elem), "ulong", NULL);
+  fail_unless (ctrl != NULL, NULL);
+
+  GST_INFO ("controller->ref_count=%d", G_OBJECT (ctrl)->ref_count);
+  g_object_unref (ctrl);
+  gst_object_unref (elem);
+  
+  
+    std_log(LOG_FILENAME_LINE, "Test Successful");
+  create_xml(0); 
+  
+}
+
+
+
+/* tests for an element with several controlled params */
+void controller_new_okay2()
+{
+  GstController *ctrl, *ctrl2, *ctrl3;
+  GstElement *elem;
+
+		xmlfile = "controller_new_okay2";
+  std_log(LOG_FILENAME_LINE, "Test Started controller_new_okay2");
+  
+  gst_controller_init (NULL, NULL);
+
+  elem = gst_element_factory_make ("testmonosource", "test_source");
+
+  /* that property should exist and should be controllable */
+  ctrl = gst_controller_new (G_OBJECT (elem), "ulong", "double", "float", NULL);
+  fail_unless (ctrl != NULL, NULL);
+
+  GST_INFO ("controller->ref_count=%d", G_OBJECT (ctrl)->ref_count);
+  fail_unless_equals_int (G_OBJECT (ctrl)->ref_count, 1);
+
+  ctrl2 = gst_controller_new (G_OBJECT (elem), "boolean", NULL);
+  fail_unless (ctrl2 != NULL, NULL);
+  fail_unless (ctrl2 == ctrl, NULL);
+
+  GST_INFO ("controller->ref_count=%d", G_OBJECT (ctrl)->ref_count);
+  fail_unless_equals_int (G_OBJECT (ctrl)->ref_count, 2);
+
+  /* trying to control the same properties again should correctly
+   * increase the refcount of the object returned as well */
+  ctrl3 =
+      gst_controller_new (G_OBJECT (elem), "ulong", "double", "float", NULL);
+  fail_unless (ctrl3 != NULL, NULL);
+  fail_unless (ctrl3 == ctrl, NULL);
+
+  GST_INFO ("controller->ref_count=%d", G_OBJECT (ctrl)->ref_count);
+  fail_unless_equals_int (G_OBJECT (ctrl)->ref_count, 3);
+
+  g_object_unref (ctrl);
+  g_object_unref (ctrl2);
+  g_object_unref (ctrl3);
+  gst_object_unref (elem);
+  
+    std_log(LOG_FILENAME_LINE, "Test Successful");
+  create_xml(0); 
+  
+}
+
+
+
+/* controlling several params should return the same controller */
+void controller_new_okay3()
+{
+  GstController *ctrl1, *ctrl2, *ctrl3;
+  GstElement *elem;
+
+		xmlfile = "controller_new_okay3";
+  std_log(LOG_FILENAME_LINE, "Test Started controller_new_okay3");
+  
+  gst_controller_init (NULL, NULL);
+
+  elem = gst_element_factory_make ("testmonosource", "test_source");
+
+  /* that property should exist and should be controllable */
+  ctrl1 = gst_controller_new (G_OBJECT (elem), "ulong", NULL);
+  fail_unless (ctrl1 != NULL, NULL);
+
+  /* that property should exist and should be controllable */
+  ctrl2 = gst_controller_new (G_OBJECT (elem), "double", NULL);
+  fail_unless (ctrl2 != NULL, NULL);
+  fail_unless (ctrl1 == ctrl2, NULL);
+
+  /* that property should exist and should be controllable */
+  ctrl3 = gst_controller_new (G_OBJECT (elem), "float", NULL);
+  fail_unless (ctrl3 != NULL, NULL);
+  fail_unless (ctrl1 == ctrl3, NULL);
+
+  GST_INFO ("controller->ref_count=%d", G_OBJECT (ctrl1)->ref_count);
+  fail_unless_equals_int (G_OBJECT (ctrl1)->ref_count, 3);
+  g_object_unref (ctrl1);
+  g_object_unref (ctrl2);
+  g_object_unref (ctrl3);
+  gst_object_unref (elem);
+  
+    std_log(LOG_FILENAME_LINE, "Test Successful");
+  create_xml(0); 
+  
+}
+
+
+
+/* controlling a params twice should be handled */
+void controller_param_twice()
+{
+  GstController *ctrl;
+  GstElement *elem;
+  gboolean res;
+
+			xmlfile = "controller_param_twice";
+  std_log(LOG_FILENAME_LINE, "Test Started controller_param_twice");
+  
+  gst_controller_init (NULL, NULL);
+
+  elem = gst_element_factory_make ("testmonosource", "test_source");
+
+  /* that property should exist and should be controllable */
+  ctrl = gst_controller_new (G_OBJECT (elem), "ulong", "ulong", NULL);
+  fail_unless (ctrl != NULL, NULL);
+
+  /* it should have been added at least once, let remove it */
+  res = gst_controller_remove_properties (ctrl, "ulong", NULL);
+  fail_unless (res, NULL);
+
+  /* removing it agian should not work */
+  res = gst_controller_remove_properties (ctrl, "ulong", NULL);
+  fail_unless (!res, NULL);
+
+  GST_INFO ("controller->ref_count=%d", G_OBJECT (ctrl)->ref_count);
+  g_object_unref (ctrl);
+  gst_object_unref (elem);
+  
+  std_log(LOG_FILENAME_LINE, "Test Successful");
+  create_xml(0); 
+  
+}
+
+
+
+/* tests if we cleanup properly */
+void controller_finalize()
+{
+  GstController *ctrl;
+  GstElement *elem;
+
+			xmlfile = "controller_finalize";
+  std_log(LOG_FILENAME_LINE, "Test Started controller_finalize");
+  
+  gst_controller_init (NULL, NULL);
+
+  elem = gst_element_factory_make ("testmonosource", "test_source");
+
+  /* that property should exist and should be controllable */
+  ctrl = gst_controller_new (G_OBJECT (elem), "ulong", NULL);
+  fail_unless (ctrl != NULL, NULL);
+
+  /* free the controller */
+  g_object_unref (ctrl);
+
+  /* object shouldn't have a controller anymore */
+  ctrl = gst_object_get_controller (G_OBJECT (elem));
+  fail_unless (ctrl == NULL, NULL);
+
+  gst_object_unref (elem);
+  
+  std_log(LOG_FILENAME_LINE, "Test Successful");
+  create_xml(0); 
+  
+}
+
+
+
+/* tests if we cleanup properly */
+void controller_controlsource_refcounts()
+{
+  GstController *ctrl;
+  GstElement *elem;
+  GstControlSource *csource, *test_csource;
+
+		xmlfile = "controller_controlsource_refcounts";
+  std_log(LOG_FILENAME_LINE, "Test Started controller_controlsource_refcounts");
+  
+  gst_controller_init (NULL, NULL);
+
+  elem = gst_element_factory_make ("testmonosource", "test_source");
+
+  /* that property should exist and should be controllable */
+  ctrl = gst_controller_new (G_OBJECT (elem), "ulong", NULL);
+  fail_unless (ctrl != NULL, NULL);
+
+  csource = (GstControlSource *) gst_interpolation_control_source_new ();
+  fail_unless (csource != NULL, NULL);
+
+  fail_unless_equals_int (G_OBJECT (csource)->ref_count, 1);
+  fail_unless (gst_controller_set_control_source (ctrl, "ulong", csource));
+  fail_unless_equals_int (G_OBJECT (csource)->ref_count, 2);
+
+  g_object_unref (G_OBJECT (csource));
+
+  test_csource = gst_controller_get_control_source (ctrl, "ulong");
+  fail_unless (test_csource != NULL, NULL);
+  fail_unless (test_csource == csource);
+  fail_unless_equals_int (G_OBJECT (csource)->ref_count, 2);
+  g_object_unref (csource);
+
+  /* free the controller */
+  g_object_unref (ctrl);
+
+  /* object shouldn't have a controller anymore */
+  ctrl = gst_object_get_controller (G_OBJECT (elem));
+  fail_unless (ctrl == NULL, NULL);
+
+  gst_object_unref (elem);
+  
+   std_log(LOG_FILENAME_LINE, "Test Successful");
+  create_xml(0); 
+  
+}
+
+
+
+/* test timed value handling without interpolation */
+void controller_interpolate_none()
+{
+  GstController *ctrl;
+  GstInterpolationControlSource *csource;
+  GstElement *elem;
+  gboolean res;
+  GValue val_ulong = { 0, };
+  
+  		xmlfile = "controller_interpolate_none";
+  std_log(LOG_FILENAME_LINE, "Test Started controller_interpolate_none");
+  
+
+  gst_controller_init (NULL, NULL);
+
+  elem = gst_element_factory_make ("testmonosource", "test_source");
+
+  /* that property should exist and should be controllable */
+  ctrl = gst_controller_new (G_OBJECT (elem), "ulong", NULL);
+  fail_unless (ctrl != NULL, NULL);
+
+  /* Get interpolation control source */
+  csource = gst_interpolation_control_source_new ();
+
+  fail_unless (csource != NULL);
+  fail_unless (gst_controller_set_control_source (ctrl, "ulong",
+          GST_CONTROL_SOURCE (csource)));
+
+  /* set interpolation mode */
+  fail_unless (gst_interpolation_control_source_set_interpolation_mode (csource,
+          GST_INTERPOLATE_NONE));
+
+  fail_unless (gst_interpolation_control_source_get_count (csource) == 0);
+
+  /* set control values */
+  g_value_init (&val_ulong, G_TYPE_ULONG);
+  g_value_set_ulong (&val_ulong, 0);
+  res =
+      gst_interpolation_control_source_set (csource, 0 * GST_SECOND,
+      &val_ulong);
+  fail_unless (res, NULL);
+  fail_unless (gst_interpolation_control_source_get_count (csource) == 1);
+  g_value_set_ulong (&val_ulong, 100);
+  res =
+      gst_interpolation_control_source_set (csource, 2 * GST_SECOND,
+      &val_ulong);
+  fail_unless (res, NULL);
+  fail_unless (gst_interpolation_control_source_get_count (csource) == 2);
+
+  g_object_unref (G_OBJECT (csource));
+
+  /* now pull in values for some timestamps */
+  gst_controller_sync_values (ctrl, 0 * GST_SECOND);
+  fail_unless_equals_int (GST_TEST_MONO_SOURCE (elem)->val_ulong, 0);;
+  gst_controller_sync_values (ctrl, 1 * GST_SECOND);
+  fail_unless_equals_int (GST_TEST_MONO_SOURCE (elem)->val_ulong, 0);;
+  gst_controller_sync_values (ctrl, 2 * GST_SECOND);
+  fail_unless_equals_int (GST_TEST_MONO_SOURCE (elem)->val_ulong, 100);;
+
+  GST_INFO ("controller->ref_count=%d", G_OBJECT (ctrl)->ref_count);
+  g_object_unref (ctrl);
+  gst_object_unref (elem);
+  
+   std_log(LOG_FILENAME_LINE, "Test Successful");
+  create_xml(0); 
+  
+}
+
+
+
+/* test timed value handling in trigger mode */
+void controller_interpolate_trigger()
+{
+  GstController *ctrl;
+  GstInterpolationControlSource *csource;
+  GstElement *elem;
+  gboolean res;
+  GValue val_ulong = { 0, };
+
+			xmlfile = "controller_interpolate_trigger";
+  std_log(LOG_FILENAME_LINE, "Test Started controller_interpolate_trigger");
+  
+  gst_controller_init (NULL, NULL);
+
+  elem = gst_element_factory_make ("testmonosource", "test_source");
+
+  /* that property should exist and should be controllable */
+  ctrl = gst_controller_new (G_OBJECT (elem), "ulong", NULL);
+  fail_unless (ctrl != NULL, NULL);
+
+  /* Get interpolation control source */
+  csource = gst_interpolation_control_source_new ();
+
+  fail_unless (csource != NULL);
+  fail_unless (gst_controller_set_control_source (ctrl, "ulong",
+          GST_CONTROL_SOURCE (csource)));
+
+  /* set interpolation mode */
+  fail_unless (gst_interpolation_control_source_set_interpolation_mode (csource,
+          GST_INTERPOLATE_TRIGGER));
+
+  g_value_init (&val_ulong, G_TYPE_ULONG);
+  fail_if (gst_control_source_get_value (GST_CONTROL_SOURCE (csource),
+          0 * GST_SECOND, &val_ulong));
+
+  /* set control values */
+  g_value_set_ulong (&val_ulong, 50);
+  res =
+      gst_interpolation_control_source_set (csource, 0 * GST_SECOND,
+      &val_ulong);
+  fail_unless (res, NULL);
+  g_value_set_ulong (&val_ulong, 100);
+  res =
+      gst_interpolation_control_source_set (csource, 2 * GST_SECOND,
+      &val_ulong);
+  fail_unless (res, NULL);
+
+
+  /* now pull in values for some timestamps */
+  fail_unless (gst_control_source_get_value (GST_CONTROL_SOURCE (csource),
+          0 * GST_SECOND, &val_ulong));
+  gst_controller_sync_values (ctrl, 0 * GST_SECOND);
+  fail_unless_equals_int (GST_TEST_MONO_SOURCE (elem)->val_ulong, 50);;
+  fail_unless (gst_control_source_get_value (GST_CONTROL_SOURCE (csource),
+          1 * GST_SECOND, &val_ulong));
+  gst_controller_sync_values (ctrl, 1 * GST_SECOND);
+  fail_unless_equals_int (GST_TEST_MONO_SOURCE (elem)->val_ulong, 0);;
+  fail_unless (gst_control_source_get_value (GST_CONTROL_SOURCE (csource),
+          2 * GST_SECOND, &val_ulong));
+  gst_controller_sync_values (ctrl, 2 * GST_SECOND);
+  fail_unless_equals_int (GST_TEST_MONO_SOURCE (elem)->val_ulong, 100);;
+
+  GST_INFO ("controller->ref_count=%d", G_OBJECT (ctrl)->ref_count);
+  g_object_unref (G_OBJECT (csource));
+  g_object_unref (ctrl);
+  gst_object_unref (elem);
+  
+    std_log(LOG_FILENAME_LINE, "Test Successful");
+  create_xml(0); 
+  
+}
+
+
+
+/* test timed value handling with linear interpolation */
+void controller_interpolate_linear()
+{
+  GstController *ctrl;
+  GstInterpolationControlSource *csource;
+  GstElement *elem;
+  gboolean res;
+  GValue val_ulong = { 0, };
+  
+  	xmlfile = "controller_interpolate_linear";
+  std_log(LOG_FILENAME_LINE, "Test Started controller_interpolate_linear");
+  
+
+  gst_controller_init (NULL, NULL);
+
+  elem = gst_element_factory_make ("testmonosource", "test_source");
+
+  /* that property should exist and should be controllable */
+  ctrl = gst_controller_new (G_OBJECT (elem), "ulong", NULL);
+  fail_unless (ctrl != NULL, NULL);
+
+  /* Get interpolation control source */
+  csource = gst_interpolation_control_source_new ();
+
+  fail_unless (csource != NULL);
+  fail_unless (gst_controller_set_control_source (ctrl, "ulong",
+          GST_CONTROL_SOURCE (csource)));
+
+  /* set interpolation mode */
+  fail_unless (gst_interpolation_control_source_set_interpolation_mode (csource,
+          GST_INTERPOLATE_LINEAR));
+
+  /* set control values */
+  g_value_init (&val_ulong, G_TYPE_ULONG);
+  g_value_set_ulong (&val_ulong, 0);
+  res =
+      gst_interpolation_control_source_set (csource, 0 * GST_SECOND,
+      &val_ulong);
+  fail_unless (res, NULL);
+  g_value_set_ulong (&val_ulong, 100);
+  res =
+      gst_interpolation_control_source_set (csource, 2 * GST_SECOND,
+      &val_ulong);
+  fail_unless (res, NULL);
+
+  g_object_unref (G_OBJECT (csource));
+
+  /* now pull in values for some timestamps */
+  gst_controller_sync_values (ctrl, 0 * GST_SECOND);
+  fail_unless_equals_int (GST_TEST_MONO_SOURCE (elem)->val_ulong, 0);;
+  gst_controller_sync_values (ctrl, 1 * GST_SECOND);
+  fail_unless_equals_int (GST_TEST_MONO_SOURCE (elem)->val_ulong, 50);;
+  gst_controller_sync_values (ctrl, 2 * GST_SECOND);
+  fail_unless_equals_int (GST_TEST_MONO_SOURCE (elem)->val_ulong, 100);;
+
+  GST_INFO ("controller->ref_count=%d", G_OBJECT (ctrl)->ref_count);
+  g_object_unref (ctrl);
+  gst_object_unref (elem);
+  
+   std_log(LOG_FILENAME_LINE, "Test Successful");
+  create_xml(0); 
+  
+}
+
+
+
+/* test timed value handling with cubic interpolation */
+void controller_interpolate_cubic()
+{
+  GstController *ctrl;
+  GstInterpolationControlSource *csource;
+  GstElement *elem;
+  gboolean res;
+  GValue val_double = { 0, };
+
+	 	xmlfile = "controller_interpolate_cubic";
+  std_log(LOG_FILENAME_LINE, "Test Started controller_interpolate_cubic");
+  
+  gst_controller_init (NULL, NULL);
+
+  elem = gst_element_factory_make ("testmonosource", "test_source");
+
+  /* that property should exist and should be controllable */
+  ctrl = gst_controller_new (G_OBJECT (elem), "double", NULL);
+  fail_unless (ctrl != NULL, NULL);
+
+  /* Get interpolation control source */
+  csource = gst_interpolation_control_source_new ();
+
+  fail_unless (csource != NULL);
+  fail_unless (gst_controller_set_control_source (ctrl, "double",
+          GST_CONTROL_SOURCE (csource)));
+
+  /* set interpolation mode */
+  fail_unless (gst_interpolation_control_source_set_interpolation_mode (csource,
+          GST_INTERPOLATE_CUBIC));
+
+  /* set control values */
+  g_value_init (&val_double, G_TYPE_DOUBLE);
+  g_value_set_double (&val_double, 0.0);
+  res =
+      gst_interpolation_control_source_set (csource, 0 * GST_SECOND,
+      &val_double);
+  fail_unless (res, NULL);
+  g_value_set_double (&val_double, 5.0);
+  res =
+      gst_interpolation_control_source_set (csource, 1 * GST_SECOND,
+      &val_double);
+  fail_unless (res, NULL);
+  g_value_set_double (&val_double, 2.0);
+  res =
+      gst_interpolation_control_source_set (csource, 2 * GST_SECOND,
+      &val_double);
+  fail_unless (res, NULL);
+  g_value_set_double (&val_double, 8.0);
+  res =
+      gst_interpolation_control_source_set (csource, 4 * GST_SECOND,
+      &val_double);
+  fail_unless (res, NULL);
+
+  g_object_unref (G_OBJECT (csource));
+
+  /* now pull in values for some timestamps */
+  gst_controller_sync_values (ctrl, 0 * GST_SECOND);
+  fail_unless_equals_float (GST_TEST_MONO_SOURCE (elem)->val_double, 0.0);
+  gst_controller_sync_values (ctrl, 1 * GST_SECOND);
+  fail_unless_equals_float (GST_TEST_MONO_SOURCE (elem)->val_double, 5.0);
+  gst_controller_sync_values (ctrl, 2 * GST_SECOND);
+  fail_unless_equals_float (GST_TEST_MONO_SOURCE (elem)->val_double, 2.0);
+  gst_controller_sync_values (ctrl, 3 * GST_SECOND);
+  fail_unless (GST_TEST_MONO_SOURCE (elem)->val_double > 2.0 &&
+      GST_TEST_MONO_SOURCE (elem)->val_double < 8.0, NULL);
+  gst_controller_sync_values (ctrl, 4 * GST_SECOND);
+  fail_unless_equals_float (GST_TEST_MONO_SOURCE (elem)->val_double, 8.0);
+  gst_controller_sync_values (ctrl, 5 * GST_SECOND);
+  fail_unless_equals_float (GST_TEST_MONO_SOURCE (elem)->val_double, 8.0);
+
+  GST_INFO ("controller->ref_count=%d", G_OBJECT (ctrl)->ref_count);
+  g_object_unref (ctrl);
+  gst_object_unref (elem);
+  
+    std_log(LOG_FILENAME_LINE, "Test Successful");
+  create_xml(0); 
+  
+}
+
+
+
+/* make sure we don't crash when someone sets an unsupported interpolation
+ * mode */
+void controller_interpolate_unimplemented()
+{
+  GstController *ctrl;
+  GstInterpolationControlSource *csource;
+  GstElement *elem;
+
+		xmlfile = "controller_interpolate_unimplemented";
+  std_log(LOG_FILENAME_LINE, "Test Started controller_interpolate_unimplemented");
+  
+  gst_controller_init (NULL, NULL);
+
+  elem = gst_element_factory_make ("testmonosource", "test_source");
+
+  /* that property should exist and should be controllable */
+  ctrl = gst_controller_new (G_OBJECT (elem), "ulong", NULL);
+  fail_unless (ctrl != NULL, NULL);
+
+  /* Get interpolation control source */
+  csource = gst_interpolation_control_source_new ();
+
+  fail_unless (csource != NULL);
+  fail_unless (gst_controller_set_control_source (ctrl, "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 (G_OBJECT (csource));
+
+  g_object_unref (ctrl);
+  gst_object_unref (elem);
+  
+     std_log(LOG_FILENAME_LINE, "Test Successful");
+  create_xml(0); 
+  
+}
+
+
+
+/* test _unset() */
+void controller_interpolation_unset()
+{
+  GstController *ctrl;
+  GstInterpolationControlSource *csource;
+  GstElement *elem;
+  gboolean res;
+  GValue val_ulong = { 0, };
+
+			xmlfile = "controller_interpolation_unset";
+  std_log(LOG_FILENAME_LINE, "Test Started controller_interpolation_unset");
+  
+  gst_controller_init (NULL, NULL);
+
+  elem = gst_element_factory_make ("testmonosource", "test_source");
+
+  /* that property should exist and should be controllable */
+  ctrl = gst_controller_new (G_OBJECT (elem), "ulong", NULL);
+  fail_unless (ctrl != NULL, NULL);
+
+  /* Get interpolation control source */
+  csource = gst_interpolation_control_source_new ();
+
+  fail_unless (csource != NULL);
+  fail_unless (gst_controller_set_control_source (ctrl, "ulong",
+          GST_CONTROL_SOURCE (csource)));
+
+  /* set interpolation mode */
+  fail_unless (gst_interpolation_control_source_set_interpolation_mode (csource,
+          GST_INTERPOLATE_NONE));
+
+  /* set control values */
+  g_value_init (&val_ulong, G_TYPE_ULONG);
+  g_value_set_ulong (&val_ulong, 0);
+  res =
+      gst_interpolation_control_source_set (csource, 0 * GST_SECOND,
+      &val_ulong);
+  fail_unless (res, NULL);
+  g_value_set_ulong (&val_ulong, 100);
+  res =
+      gst_interpolation_control_source_set (csource, 1 * GST_SECOND,
+      &val_ulong);
+  fail_unless (res, NULL);
+  g_value_set_ulong (&val_ulong, 50);
+  res =
+      gst_interpolation_control_source_set (csource, 2 * GST_SECOND,
+      &val_ulong);
+  fail_unless (res, NULL);
+
+  /* verify values */
+  gst_controller_sync_values (ctrl, 0 * GST_SECOND);
+  fail_unless_equals_int (GST_TEST_MONO_SOURCE (elem)->val_ulong, 0);;
+  gst_controller_sync_values (ctrl, 1 * GST_SECOND);
+  fail_unless_equals_int (GST_TEST_MONO_SOURCE (elem)->val_ulong, 100);;
+  gst_controller_sync_values (ctrl, 2 * GST_SECOND);
+  fail_unless_equals_int (GST_TEST_MONO_SOURCE (elem)->val_ulong, 50);;
+
+  /* unset second */
+  res = gst_interpolation_control_source_unset (csource, 1 * GST_SECOND);
+  fail_unless (res, NULL);
+
+  g_object_unref (csource);
+
+  /* verify value again */
+  gst_controller_sync_values (ctrl, 1 * GST_SECOND);
+  fail_unless_equals_int (GST_TEST_MONO_SOURCE (elem)->val_ulong, 0);;
+  gst_controller_sync_values (ctrl, 2 * GST_SECOND);
+  fail_unless_equals_int (GST_TEST_MONO_SOURCE (elem)->val_ulong, 50);;
+
+  GST_INFO ("controller->ref_count=%d", G_OBJECT (ctrl)->ref_count);
+  g_object_unref (ctrl);
+  gst_object_unref (elem);
+  
+   std_log(LOG_FILENAME_LINE, "Test Successful");
+  create_xml(0); 
+  
+}
+
+
+
+/* test _unset_all() */
+void controller_interpolation_unset_all()
+{
+  GstController *ctrl;
+  GstInterpolationControlSource *csource;
+  GstElement *elem;
+  gboolean res;
+  GValue val_ulong = { 0, };
+  
+  	xmlfile = "controller_interpolation_unset_all";
+  std_log(LOG_FILENAME_LINE, "Test Started controller_interpolation_unset_all");
+  
+
+  gst_controller_init (NULL, NULL);
+
+  elem = gst_element_factory_make ("testmonosource", "test_source");
+
+  /* that property should exist and should be controllable */
+  ctrl = gst_controller_new (G_OBJECT (elem), "ulong", NULL);
+  fail_unless (ctrl != NULL, NULL);
+
+  /* Get interpolation control source */
+  csource = gst_interpolation_control_source_new ();
+
+  fail_unless (csource != NULL);
+  fail_unless (gst_controller_set_control_source (ctrl, "ulong",
+          GST_CONTROL_SOURCE (csource)));
+
+  /* set interpolation mode */
+  fail_unless (gst_interpolation_control_source_set_interpolation_mode (csource,
+          GST_INTERPOLATE_NONE));
+
+  /* set control values */
+  g_value_init (&val_ulong, G_TYPE_ULONG);
+  g_value_set_ulong (&val_ulong, 0);
+  res =
+      gst_interpolation_control_source_set (csource, 0 * GST_SECOND,
+      &val_ulong);
+  fail_unless (res, NULL);
+  g_value_set_ulong (&val_ulong, 100);
+  res =
+      gst_interpolation_control_source_set (csource, 1 * GST_SECOND,
+      &val_ulong);
+  fail_unless (res, NULL);
+
+  /* verify values */
+  gst_controller_sync_values (ctrl, 0 * GST_SECOND);
+  fail_unless_equals_int (GST_TEST_MONO_SOURCE (elem)->val_ulong, 0);;
+  gst_controller_sync_values (ctrl, 1 * GST_SECOND);
+  fail_unless_equals_int (GST_TEST_MONO_SOURCE (elem)->val_ulong, 100);;
+
+  /* unset second */
+  gst_interpolation_control_source_unset_all (csource);
+
+  g_object_unref (csource);
+
+  /* verify value again */
+  gst_controller_sync_values (ctrl, 1 * GST_SECOND);
+  fail_unless_equals_int (GST_TEST_MONO_SOURCE (elem)->val_ulong, 100);;
+
+  GST_INFO ("controller->ref_count=%d", G_OBJECT (ctrl)->ref_count);
+  g_object_unref (ctrl);
+  gst_object_unref (elem);
+  
+    std_log(LOG_FILENAME_LINE, "Test Successful");
+  create_xml(0); 
+  
+}
+
+
+
+/* test retrieval of an array of values with get_value_array() */
+void controller_interpolation_linear_value_array()
+{
+  GstController *ctrl;
+  GstInterpolationControlSource *csource;
+  GstElement *elem;
+  gboolean res;
+  GValue val_ulong = { 0, };
+  GstValueArray values = { NULL, };
+
+		xmlfile = "controller_interpolation_linear_value_array";
+  std_log(LOG_FILENAME_LINE, "Test Started controller_interpolation_linear_value_array");
+  
+	
+  gst_controller_init (NULL, NULL);
+
+  elem = gst_element_factory_make ("testmonosource", "test_source");
+
+  /* that property should exist and should be controllable */
+  ctrl = gst_controller_new (G_OBJECT (elem), "ulong", NULL);
+  fail_unless (ctrl != NULL, NULL);
+
+  /* Get interpolation control source */
+  csource = gst_interpolation_control_source_new ();
+
+  fail_unless (csource != NULL);
+  fail_unless (gst_controller_set_control_source (ctrl, "ulong",
+          GST_CONTROL_SOURCE (csource)));
+
+  /* set interpolation mode */
+  fail_unless (gst_interpolation_control_source_set_interpolation_mode (csource,
+          GST_INTERPOLATE_LINEAR));
+
+  /* set control values */
+  g_value_init (&val_ulong, G_TYPE_ULONG);
+  g_value_set_ulong (&val_ulong, 0);
+  res =
+      gst_interpolation_control_source_set (csource, 0 * GST_SECOND,
+      &val_ulong);
+  fail_unless (res, NULL);
+  g_value_set_ulong (&val_ulong, 100);
+  res =
+      gst_interpolation_control_source_set (csource, 2 * GST_SECOND,
+      &val_ulong);
+  fail_unless (res, NULL);
+
+  /* now pull in values for some timestamps */
+  values.property_name = "ulong";
+  values.nbsamples = 3;
+  values.sample_interval = GST_SECOND;
+  values.values = (gpointer) g_new (gulong, 3);
+
+  fail_unless (gst_control_source_get_value_array (GST_CONTROL_SOURCE (csource),
+          0, &values));
+  fail_unless_equals_int (((gulong *) values.values)[0], 0);
+  fail_unless_equals_int (((gulong *) values.values)[1], 50);
+  fail_unless_equals_int (((gulong *) values.values)[2], 100);
+
+  g_object_unref (csource);
+
+  GST_INFO ("controller->ref_count=%d", G_OBJECT (ctrl)->ref_count);
+  g_free (values.values);
+  g_object_unref (ctrl);
+  gst_object_unref (elem);
+  
+   std_log(LOG_FILENAME_LINE, "Test Successful");
+  create_xml(0); 
+  
+}
+
+
+
+/* test if values below minimum and above maximum are clipped */
+void controller_interpolation_linear_invalid_values()
+{
+  GstController *ctrl;
+  GstInterpolationControlSource *csource;
+  GstElement *elem;
+  gboolean res;
+  GValue val_float = { 0, };
+  
+  		xmlfile = "controller_interpolation_linear_invalid_values";
+  std_log(LOG_FILENAME_LINE, "Test Started controller_interpolation_linear_invalid_values");
+  
+
+  gst_controller_init (NULL, NULL);
+
+  elem = gst_element_factory_make ("testmonosource", "test_source");
+
+  /* that property should exist and should be controllable */
+  ctrl = gst_controller_new (G_OBJECT (elem), "float", NULL);
+  fail_unless (ctrl != NULL, NULL);
+
+  /* Get interpolation control source */
+  csource = gst_interpolation_control_source_new ();
+
+  fail_unless (csource != NULL);
+  fail_unless (gst_controller_set_control_source (ctrl, "float",
+          GST_CONTROL_SOURCE (csource)));
+
+  /* set interpolation mode */
+  fail_unless (gst_interpolation_control_source_set_interpolation_mode (csource,
+          GST_INTERPOLATE_LINEAR));
+
+  /* set control values */
+  g_value_init (&val_float, G_TYPE_FLOAT);
+  g_value_set_float (&val_float, 200.0);
+  res =
+      gst_interpolation_control_source_set (csource, 0 * GST_SECOND,
+      &val_float);
+  fail_unless (res, NULL);
+  g_value_set_float (&val_float, -200.0);
+  res =
+      gst_interpolation_control_source_set (csource, 4 * GST_SECOND,
+      &val_float);
+  fail_unless (res, NULL);
+
+  g_object_unref (csource);
+
+  /* now pull in values for some timestamps and see if clipping works */
+  /* 200.0 */
+  gst_controller_sync_values (ctrl, 0 * GST_SECOND);
+  fail_unless_equals_float (GST_TEST_MONO_SOURCE (elem)->val_float, 100.0);
+  /* 100.0 */
+  gst_controller_sync_values (ctrl, 1 * GST_SECOND);
+  fail_unless_equals_float (GST_TEST_MONO_SOURCE (elem)->val_float, 100.0);
+  /* 50.0 */
+  gst_controller_sync_values (ctrl, 1 * GST_SECOND + 500 * GST_MSECOND);
+  fail_unless_equals_float (GST_TEST_MONO_SOURCE (elem)->val_float, 50.0);
+  /* 0.0 */
+  gst_controller_sync_values (ctrl, 2 * GST_SECOND);
+  fail_unless_equals_float (GST_TEST_MONO_SOURCE (elem)->val_float, 0.0);
+  /* -100.0 */
+  gst_controller_sync_values (ctrl, 3 * GST_SECOND);
+  fail_unless_equals_float (GST_TEST_MONO_SOURCE (elem)->val_float, 0.0);
+  /* -200.0 */
+  gst_controller_sync_values (ctrl, 4 * GST_SECOND);
+  fail_unless_equals_float (GST_TEST_MONO_SOURCE (elem)->val_float, 0.0);
+
+  GST_INFO ("controller->ref_count=%d", G_OBJECT (ctrl)->ref_count);
+  g_object_unref (ctrl);
+  gst_object_unref (elem);
+  
+   std_log(LOG_FILENAME_LINE, "Test Successful");
+  create_xml(0); 
+  
+}
+
+
+
+void controller_interpolation_linear_default_values()
+{
+  GstController *ctrl;
+  GstInterpolationControlSource *csource;
+  GstElement *elem;
+  gboolean res;
+  GValue val_ulong = { 0, };
+
+	xmlfile = "controller_interpolation_linear_default_values";
+  std_log(LOG_FILENAME_LINE, "Test Started controller_interpolation_linear_default_values");
+  
+  gst_controller_init (NULL, NULL);
+
+  elem = gst_element_factory_make ("testmonosource", "test_source");
+
+  /* that property should exist and should be controllable */
+  ctrl = gst_controller_new (G_OBJECT (elem), "ulong", NULL);
+  fail_unless (ctrl != NULL, NULL);
+
+  /* Get interpolation control source */
+  csource = gst_interpolation_control_source_new ();
+
+  fail_unless (csource != NULL);
+  fail_unless (gst_controller_set_control_source (ctrl, "ulong",
+          GST_CONTROL_SOURCE (csource)));
+
+  /* set interpolation mode */
+  fail_unless (gst_interpolation_control_source_set_interpolation_mode (csource,
+          GST_INTERPOLATE_LINEAR));
+
+  /* Should fail if no value was set yet */
+  g_value_init (&val_ulong, G_TYPE_ULONG);
+  fail_if (gst_control_source_get_value (GST_CONTROL_SOURCE (csource),
+          0 * GST_SECOND, &val_ulong));
+
+  /* set control values */
+  g_value_set_ulong (&val_ulong, 0);
+  res =
+      gst_interpolation_control_source_set (csource, 1 * GST_SECOND,
+      &val_ulong);
+  fail_unless (res, NULL);
+  g_value_set_ulong (&val_ulong, 100);
+  res =
+      gst_interpolation_control_source_set (csource, 3 * GST_SECOND,
+      &val_ulong);
+  fail_unless (res, NULL);
+
+  /* now pull in values for some timestamps */
+  /* should give the value of the first control point for timestamps before it */
+  gst_controller_sync_values (ctrl, 0 * GST_SECOND);
+  fail_unless_equals_int (GST_TEST_MONO_SOURCE (elem)->val_ulong, 0);;
+  gst_controller_sync_values (ctrl, 1 * GST_SECOND);
+  fail_unless_equals_int (GST_TEST_MONO_SOURCE (elem)->val_ulong, 0);;
+  gst_controller_sync_values (ctrl, 2 * GST_SECOND);
+  fail_unless_equals_int (GST_TEST_MONO_SOURCE (elem)->val_ulong, 50);;
+  gst_controller_sync_values (ctrl, 3 * GST_SECOND);
+  fail_unless_equals_int (GST_TEST_MONO_SOURCE (elem)->val_ulong, 100);;
+
+  /* set control values */
+  g_value_set_ulong (&val_ulong, 0);
+  res =
+      gst_interpolation_control_source_set (csource, 0 * GST_SECOND,
+      &val_ulong);
+  fail_unless (res, NULL);
+  g_value_set_ulong (&val_ulong, 100);
+  res =
+      gst_interpolation_control_source_set (csource, 2 * GST_SECOND,
+      &val_ulong);
+  fail_unless (res, NULL);
+
+  /* unset the old ones */
+  res = gst_interpolation_control_source_unset (csource, 1 * GST_SECOND);
+  fail_unless (res, NULL);
+  res = gst_interpolation_control_source_unset (csource, 3 * GST_SECOND);
+  fail_unless (res, NULL);
+
+  /* now pull in values for some timestamps */
+  /* should now give our value for timestamp 0 */
+  gst_controller_sync_values (ctrl, 0 * GST_SECOND);
+  fail_unless_equals_int (GST_TEST_MONO_SOURCE (elem)->val_ulong, 0);;
+  gst_controller_sync_values (ctrl, 1 * GST_SECOND);
+  fail_unless_equals_int (GST_TEST_MONO_SOURCE (elem)->val_ulong, 50);;
+  gst_controller_sync_values (ctrl, 2 * GST_SECOND);
+  fail_unless_equals_int (GST_TEST_MONO_SOURCE (elem)->val_ulong, 100);;
+
+  g_object_unref (G_OBJECT (csource));
+
+  GST_INFO ("controller->ref_count=%d", G_OBJECT (ctrl)->ref_count);
+  g_object_unref (ctrl);
+  gst_object_unref (elem);
+  
+    std_log(LOG_FILENAME_LINE, "Test Successful");
+  create_xml(0);
+  
+}
+
+
+
+/* test gst_controller_set_disabled() with linear interpolation */
+void controller_interpolate_linear_disabled()
+{
+  GstController *ctrl;
+  GstInterpolationControlSource *csource, *csource2;
+  GstElement *elem;
+  gboolean res;
+  GValue val_ulong = { 0, }
+  , val_double = {
+  0,};
+  
+  	
+	xmlfile = "controller_interpolate_linear_disabled";
+  std_log(LOG_FILENAME_LINE, "Test Started controller_interpolate_linear_disabled");
+  
+
+  gst_controller_init (NULL, NULL);
+
+  elem = gst_element_factory_make ("testmonosource", "test_source");
+
+  /* that property should exist and should be controllable */
+  ctrl = gst_controller_new (G_OBJECT (elem), "ulong", "double", NULL);
+  fail_unless (ctrl != NULL, NULL);
+
+  /* Get interpolation control source */
+  csource = gst_interpolation_control_source_new ();
+  csource2 = gst_interpolation_control_source_new ();
+
+  fail_unless (csource != NULL);
+  fail_unless (gst_controller_set_control_source (ctrl, "ulong",
+          GST_CONTROL_SOURCE (csource)));
+  fail_unless (csource2 != NULL);
+  fail_unless (gst_controller_set_control_source (ctrl, "double",
+          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));
+
+  /* set control values */
+  g_value_init (&val_ulong, G_TYPE_ULONG);
+  g_value_set_ulong (&val_ulong, 0);
+  res =
+      gst_interpolation_control_source_set (csource, 0 * GST_SECOND,
+      &val_ulong);
+  fail_unless (res, NULL);
+  g_value_set_ulong (&val_ulong, 100);
+  res =
+      gst_interpolation_control_source_set (csource, 2 * GST_SECOND,
+      &val_ulong);
+  fail_unless (res, NULL);
+
+  g_object_unref (G_OBJECT (csource));
+
+/* set control values */
+  g_value_init (&val_double, G_TYPE_DOUBLE);
+  g_value_set_double (&val_double, 2.0);
+  res =
+      gst_interpolation_control_source_set (csource2, 0 * GST_SECOND,
+      &val_double);
+  fail_unless (res, NULL);
+  g_value_set_double (&val_double, 4.0);
+  res =
+      gst_interpolation_control_source_set (csource2, 2 * GST_SECOND,
+      &val_double);
+  fail_unless (res, NULL);
+
+  g_object_unref (G_OBJECT (csource2));
+
+  /* now pull in values for some timestamps */
+  gst_controller_sync_values (ctrl, 0 * GST_SECOND);
+  fail_unless_equals_int (GST_TEST_MONO_SOURCE (elem)->val_ulong, 0);;
+  fail_unless (GST_TEST_MONO_SOURCE (elem)->val_double == 2.0, NULL);
+  gst_controller_sync_values (ctrl, 1 * GST_SECOND);
+  fail_unless_equals_int (GST_TEST_MONO_SOURCE (elem)->val_ulong, 50);;
+  fail_unless (GST_TEST_MONO_SOURCE (elem)->val_double == 3.0, NULL);
+  gst_controller_sync_values (ctrl, 2 * GST_SECOND);
+  fail_unless_equals_int (GST_TEST_MONO_SOURCE (elem)->val_ulong, 100);;
+  fail_unless (GST_TEST_MONO_SOURCE (elem)->val_double == 4.0, NULL);
+
+  /* now pull in values for some timestamps, prop double disabled */
+  GST_TEST_MONO_SOURCE (elem)->val_ulong = 0;
+  GST_TEST_MONO_SOURCE (elem)->val_double = 0.0;
+  gst_controller_set_property_disabled (ctrl, "double", TRUE);
+  gst_controller_sync_values (ctrl, 0 * GST_SECOND);
+  fail_unless_equals_int (GST_TEST_MONO_SOURCE (elem)->val_ulong, 0);;
+  fail_unless (GST_TEST_MONO_SOURCE (elem)->val_double == 0.0, NULL);
+  gst_controller_sync_values (ctrl, 1 * GST_SECOND);
+  fail_unless_equals_int (GST_TEST_MONO_SOURCE (elem)->val_ulong, 50);;
+  fail_unless (GST_TEST_MONO_SOURCE (elem)->val_double == 0.0, NULL);
+  gst_controller_sync_values (ctrl, 2 * GST_SECOND);
+  fail_unless_equals_int (GST_TEST_MONO_SOURCE (elem)->val_ulong, 100);;
+  fail_unless (GST_TEST_MONO_SOURCE (elem)->val_double == 0.0, NULL);
+
+  /* now pull in values for some timestamps, after enabling double again */
+  GST_TEST_MONO_SOURCE (elem)->val_ulong = 0;
+  GST_TEST_MONO_SOURCE (elem)->val_double = 0.0;
+  gst_controller_set_property_disabled (ctrl, "double", FALSE);
+  gst_controller_sync_values (ctrl, 0 * GST_SECOND);
+  fail_unless_equals_int (GST_TEST_MONO_SOURCE (elem)->val_ulong, 0);;
+  fail_unless (GST_TEST_MONO_SOURCE (elem)->val_double == 2.0, NULL);
+  gst_controller_sync_values (ctrl, 1 * GST_SECOND);
+  fail_unless_equals_int (GST_TEST_MONO_SOURCE (elem)->val_ulong, 50);;
+  fail_unless (GST_TEST_MONO_SOURCE (elem)->val_double == 3.0, NULL);
+  gst_controller_sync_values (ctrl, 2 * GST_SECOND);
+  fail_unless_equals_int (GST_TEST_MONO_SOURCE (elem)->val_ulong, 100);;
+  fail_unless (GST_TEST_MONO_SOURCE (elem)->val_double == 4.0, NULL);
+
+  /* now pull in values for some timestamps, after disabling all props */
+  GST_TEST_MONO_SOURCE (elem)->val_ulong = 0;
+  GST_TEST_MONO_SOURCE (elem)->val_double = 0.0;
+  gst_controller_set_disabled (ctrl, TRUE);
+  gst_controller_sync_values (ctrl, 0 * GST_SECOND);
+  fail_unless_equals_int (GST_TEST_MONO_SOURCE (elem)->val_ulong, 0);;
+  fail_unless (GST_TEST_MONO_SOURCE (elem)->val_double == 0.0, NULL);
+  gst_controller_sync_values (ctrl, 1 * GST_SECOND);
+  fail_unless_equals_int (GST_TEST_MONO_SOURCE (elem)->val_ulong, 0);;
+  fail_unless (GST_TEST_MONO_SOURCE (elem)->val_double == 0.0, NULL);
+  gst_controller_sync_values (ctrl, 2 * GST_SECOND);
+  fail_unless_equals_int (GST_TEST_MONO_SOURCE (elem)->val_ulong, 0);;
+  fail_unless (GST_TEST_MONO_SOURCE (elem)->val_double == 0.0, NULL);
+
+  /* now pull in values for some timestamps, enabling double again */
+  GST_TEST_MONO_SOURCE (elem)->val_ulong = 0;
+  GST_TEST_MONO_SOURCE (elem)->val_double = 0.0;
+  gst_controller_set_property_disabled (ctrl, "double", FALSE);
+  gst_controller_sync_values (ctrl, 0 * GST_SECOND);
+  fail_unless_equals_int (GST_TEST_MONO_SOURCE (elem)->val_ulong, 0);;
+  fail_unless (GST_TEST_MONO_SOURCE (elem)->val_double == 2.0, NULL);
+  gst_controller_sync_values (ctrl, 1 * GST_SECOND);
+  fail_unless_equals_int (GST_TEST_MONO_SOURCE (elem)->val_ulong, 0);;
+  fail_unless (GST_TEST_MONO_SOURCE (elem)->val_double == 3.0, NULL);
+  gst_controller_sync_values (ctrl, 2 * GST_SECOND);
+  fail_unless_equals_int (GST_TEST_MONO_SOURCE (elem)->val_ulong, 0);;
+  fail_unless (GST_TEST_MONO_SOURCE (elem)->val_double == 4.0, NULL);
+
+  /* now pull in values for some timestamps, enabling all */
+  GST_TEST_MONO_SOURCE (elem)->val_ulong = 0;
+  GST_TEST_MONO_SOURCE (elem)->val_double = 0.0;
+  gst_controller_set_disabled (ctrl, FALSE);
+  gst_controller_sync_values (ctrl, 0 * GST_SECOND);
+  fail_unless_equals_int (GST_TEST_MONO_SOURCE (elem)->val_ulong, 0);;
+  fail_unless (GST_TEST_MONO_SOURCE (elem)->val_double == 2.0, NULL);
+  gst_controller_sync_values (ctrl, 1 * GST_SECOND);
+  fail_unless_equals_int (GST_TEST_MONO_SOURCE (elem)->val_ulong, 50);;
+  fail_unless (GST_TEST_MONO_SOURCE (elem)->val_double == 3.0, NULL);
+  gst_controller_sync_values (ctrl, 2 * GST_SECOND);
+  fail_unless_equals_int (GST_TEST_MONO_SOURCE (elem)->val_ulong, 100);;
+  fail_unless (GST_TEST_MONO_SOURCE (elem)->val_double == 4.0, NULL);
+
+  GST_INFO ("controller->ref_count=%d", G_OBJECT (ctrl)->ref_count);
+  g_object_unref (ctrl);
+  gst_object_unref (elem);
+  
+   std_log(LOG_FILENAME_LINE, "Test Successful");
+  create_xml(0);
+  
+}
+
+
+
+
+void controller_interpolation_set_from_list()
+{
+  GstController *ctrl;
+  GstInterpolationControlSource *csource;
+  GstTimedValue *tval;
+  GstElement *elem;
+  GSList *list = NULL;
+
+		xmlfile = "controller_interpolation_set_from_list";
+  std_log(LOG_FILENAME_LINE, "Test Started controller_interpolation_set_from_list");
+  
+  gst_controller_init (NULL, NULL);
+
+  /* test that an invalid timestamp throws a warning of some sort */
+  elem = gst_element_factory_make ("testmonosource", "test_source");
+
+  /* that property should exist and should be controllable */
+  ctrl = gst_controller_new (G_OBJECT (elem), "ulong", NULL);
+  fail_unless (ctrl != NULL, NULL);
+
+  /* Get interpolation control source */
+  csource = gst_interpolation_control_source_new ();
+
+  fail_unless (csource != NULL);
+  fail_unless (gst_controller_set_control_source (ctrl, "ulong",
+          GST_CONTROL_SOURCE (csource)));
+
+  /* set interpolation mode */
+  fail_unless (gst_interpolation_control_source_set_interpolation_mode (csource,
+          GST_INTERPOLATE_LINEAR));
+
+  /* set control value */
+  tval = g_new0 (GstTimedValue, 1);
+  tval->timestamp = GST_CLOCK_TIME_NONE;
+  g_value_init (&tval->value, G_TYPE_ULONG);
+  g_value_set_ulong (&tval->value, 0);
+
+  list = g_slist_append (list, tval);
+
+  fail_if (gst_interpolation_control_source_set_from_list (csource, list));
+
+  /* try again with a valid stamp, should work now */
+  tval->timestamp = 0;
+  fail_unless (gst_interpolation_control_source_set_from_list (csource, list));
+
+  g_object_unref (csource);
+
+  /* allocated GstTimedValue now belongs to the controller, but list not */
+  g_value_unset (&tval->value);
+  g_free (tval);
+  g_slist_free (list);
+  g_object_unref (ctrl);
+  gst_object_unref (elem);
+  
+   std_log(LOG_FILENAME_LINE, "Test Successful");
+  create_xml(0);
+  
+}
+
+
+
+/* test lfo control source with sine waveform */
+void controller_lfo_sine()
+{
+  GstController *ctrl;
+  GstLFOControlSource *csource;
+  GstElement *elem;
+  GValue amp = { 0, }
+  , off = {
+  0,};
+
+	
+		xmlfile = "controller_lfo_sine";
+  std_log(LOG_FILENAME_LINE, "Test Started controller_lfo_sine");
+  
+  gst_controller_init (NULL, NULL);
+
+  elem = gst_element_factory_make ("testmonosource", "test_source");
+
+  /* that property should exist and should be controllable */
+  ctrl = gst_controller_new (G_OBJECT (elem), "ulong", NULL);
+  fail_unless (ctrl != NULL, NULL);
+
+  /* Get interpolation control source */
+  csource = gst_lfo_control_source_new ();
+
+  fail_unless (csource != NULL);
+  fail_unless (gst_controller_set_control_source (ctrl, "ulong",
+          GST_CONTROL_SOURCE (csource)));
+
+  /* set amplitude and offset values */
+  g_value_init (&amp, G_TYPE_ULONG);
+  g_value_init (&off, G_TYPE_ULONG);
+  g_value_set_ulong (&amp, 100);
+  g_value_set_ulong (&off, 100);
+
+  /* set waveform mode */
+  g_object_set (csource, "waveform", GST_LFO_WAVEFORM_SINE,
+      "frequency", 1.0, "timeshift", (GstClockTime) 0,
+      "amplitude", &amp, "offset", &off, NULL);
+
+  g_object_unref (G_OBJECT (csource));
+
+  /* now pull in values for some timestamps */
+  gst_controller_sync_values (ctrl, 0 * GST_MSECOND);
+  fail_unless_equals_int (GST_TEST_MONO_SOURCE (elem)->val_ulong, 100);;
+  gst_controller_sync_values (ctrl, 250 * GST_MSECOND);
+  fail_unless_equals_int (GST_TEST_MONO_SOURCE (elem)->val_ulong, 200);;
+  gst_controller_sync_values (ctrl, 500 * GST_MSECOND);
+  fail_unless_equals_int (GST_TEST_MONO_SOURCE (elem)->val_ulong, 100);;
+  gst_controller_sync_values (ctrl, 750 * GST_MSECOND);
+  fail_unless_equals_int (GST_TEST_MONO_SOURCE (elem)->val_ulong, 0);;
+  gst_controller_sync_values (ctrl, 1000 * GST_MSECOND);
+  fail_unless_equals_int (GST_TEST_MONO_SOURCE (elem)->val_ulong, 100);;
+  gst_controller_sync_values (ctrl, 1250 * GST_MSECOND);
+  fail_unless_equals_int (GST_TEST_MONO_SOURCE (elem)->val_ulong, 200);;
+  gst_controller_sync_values (ctrl, 1500 * GST_MSECOND);
+  fail_unless_equals_int (GST_TEST_MONO_SOURCE (elem)->val_ulong, 100);;
+  gst_controller_sync_values (ctrl, 1750 * GST_MSECOND);
+  fail_unless_equals_int (GST_TEST_MONO_SOURCE (elem)->val_ulong, 0);;
+  gst_controller_sync_values (ctrl, 2000 * GST_MSECOND);
+  fail_unless_equals_int (GST_TEST_MONO_SOURCE (elem)->val_ulong, 100);;
+  gst_controller_sync_values (ctrl, 1250 * GST_MSECOND);
+  fail_unless_equals_int (GST_TEST_MONO_SOURCE (elem)->val_ulong, 200);;
+  gst_controller_sync_values (ctrl, 1500 * GST_MSECOND);
+  fail_unless_equals_int (GST_TEST_MONO_SOURCE (elem)->val_ulong, 100);;
+  gst_controller_sync_values (ctrl, 1750 * GST_MSECOND);
+  fail_unless_equals_int (GST_TEST_MONO_SOURCE (elem)->val_ulong, 0);;
+
+  GST_INFO ("controller->ref_count=%d", G_OBJECT (ctrl)->ref_count);
+  g_object_unref (ctrl);
+  gst_object_unref (elem);
+  
+    std_log(LOG_FILENAME_LINE, "Test Successful");
+  create_xml(0);
+  
+}
+
+
+
+/* test lfo control source with sine waveform and timeshift */
+void controller_lfo_sine_timeshift()
+{
+  GstController *ctrl;
+  GstLFOControlSource *csource;
+  GstElement *elem;
+  GValue amp = { 0, }
+  , off = {
+  0,};
+
+			xmlfile = "controller_lfo_sine_timeshift";
+  std_log(LOG_FILENAME_LINE, "Test Started controller_lfo_sine_timeshift");
+  
+  gst_controller_init (NULL, NULL);
+
+  elem = gst_element_factory_make ("testmonosource", "test_source");
+
+  /* that property should exist and should be controllable */
+  ctrl = gst_controller_new (G_OBJECT (elem), "ulong", NULL);
+  fail_unless (ctrl != NULL, NULL);
+
+  /* Get interpolation control source */
+  csource = gst_lfo_control_source_new ();
+
+  fail_unless (csource != NULL);
+  fail_unless (gst_controller_set_control_source (ctrl, "ulong",
+          GST_CONTROL_SOURCE (csource)));
+
+  /* set amplitude and offset values */
+  g_value_init (&amp, G_TYPE_ULONG);
+  g_value_init (&off, G_TYPE_ULONG);
+  g_value_set_ulong (&amp, 100);
+  g_value_set_ulong (&off, 100);
+
+  /* set waveform mode */
+  g_object_set (csource, "waveform", GST_LFO_WAVEFORM_SINE,
+      "frequency", 1.0, "timeshift", 250 * GST_MSECOND,
+      "amplitude", &amp, "offset", &off, NULL);
+
+  g_object_unref (G_OBJECT (csource));
+
+/* now pull in values for some timestamps */
+  gst_controller_sync_values (ctrl, 0 * GST_MSECOND);
+  fail_unless_equals_int (GST_TEST_MONO_SOURCE (elem)->val_ulong, 0);;
+  gst_controller_sync_values (ctrl, 250 * GST_MSECOND);
+  fail_unless_equals_int (GST_TEST_MONO_SOURCE (elem)->val_ulong, 100);;
+  gst_controller_sync_values (ctrl, 500 * GST_MSECOND);
+  fail_unless_equals_int (GST_TEST_MONO_SOURCE (elem)->val_ulong, 200);;
+  gst_controller_sync_values (ctrl, 750 * GST_MSECOND);
+  fail_unless_equals_int (GST_TEST_MONO_SOURCE (elem)->val_ulong, 100);;
+  gst_controller_sync_values (ctrl, 1000 * GST_MSECOND);
+  fail_unless_equals_int (GST_TEST_MONO_SOURCE (elem)->val_ulong, 0);;
+  gst_controller_sync_values (ctrl, 1250 * GST_MSECOND);
+  fail_unless_equals_int (GST_TEST_MONO_SOURCE (elem)->val_ulong, 100);;
+  gst_controller_sync_values (ctrl, 1500 * GST_MSECOND);
+  fail_unless_equals_int (GST_TEST_MONO_SOURCE (elem)->val_ulong, 200);;
+  gst_controller_sync_values (ctrl, 1750 * GST_MSECOND);
+  fail_unless_equals_int (GST_TEST_MONO_SOURCE (elem)->val_ulong, 100);;
+  gst_controller_sync_values (ctrl, 2000 * GST_MSECOND);
+  fail_unless_equals_int (GST_TEST_MONO_SOURCE (elem)->val_ulong, 0);;
+  gst_controller_sync_values (ctrl, 1250 * GST_MSECOND);
+  fail_unless_equals_int (GST_TEST_MONO_SOURCE (elem)->val_ulong, 100);;
+  gst_controller_sync_values (ctrl, 1500 * GST_MSECOND);
+  fail_unless_equals_int (GST_TEST_MONO_SOURCE (elem)->val_ulong, 200);;
+  gst_controller_sync_values (ctrl, 1750 * GST_MSECOND);
+  fail_unless_equals_int (GST_TEST_MONO_SOURCE (elem)->val_ulong, 100);;
+
+  GST_INFO ("controller->ref_count=%d", G_OBJECT (ctrl)->ref_count);
+  g_object_unref (ctrl);
+  gst_object_unref (elem);
+  
+     std_log(LOG_FILENAME_LINE, "Test Successful");
+  create_xml(0);
+  
+  
+}
+
+
+
+
+/* test lfo control source with square waveform */
+void controller_lfo_square()
+{
+  GstController *ctrl;
+  GstLFOControlSource *csource;
+  GstElement *elem;
+  GValue amp = { 0, }
+  , off = {
+  0,};
+
+		xmlfile = "controller_lfo_square";
+  std_log(LOG_FILENAME_LINE, "Test Started controller_lfo_square");
+  
+  gst_controller_init (NULL, NULL);
+
+  elem = gst_element_factory_make ("testmonosource", "test_source");
+
+  /* that property should exist and should be controllable */
+  ctrl = gst_controller_new (G_OBJECT (elem), "ulong", NULL);
+  fail_unless (ctrl != NULL, NULL);
+
+  /* Get interpolation control source */
+  csource = gst_lfo_control_source_new ();
+
+  fail_unless (csource != NULL);
+  fail_unless (gst_controller_set_control_source (ctrl, "ulong",
+          GST_CONTROL_SOURCE (csource)));
+
+  /* set amplitude and offset values */
+  g_value_init (&amp, G_TYPE_ULONG);
+  g_value_init (&off, G_TYPE_ULONG);
+  g_value_set_ulong (&amp, 100);
+  g_value_set_ulong (&off, 100);
+
+  /* set waveform mode */
+  g_object_set (csource, "waveform", GST_LFO_WAVEFORM_SQUARE,
+      "frequency", 1.0, "timeshift", (GstClockTime) 0,
+      "amplitude", &amp, "offset", &off, NULL);
+
+  g_object_unref (G_OBJECT (csource));
+
+  /* now pull in values for some timestamps */
+  gst_controller_sync_values (ctrl, 0 * GST_MSECOND);
+  fail_unless_equals_int (GST_TEST_MONO_SOURCE (elem)->val_ulong, 0);;
+  gst_controller_sync_values (ctrl, 250 * GST_MSECOND);
+  fail_unless_equals_int (GST_TEST_MONO_SOURCE (elem)->val_ulong, 0);;
+  gst_controller_sync_values (ctrl, 500 * GST_MSECOND);
+  fail_unless_equals_int (GST_TEST_MONO_SOURCE (elem)->val_ulong, 200);;
+  gst_controller_sync_values (ctrl, 750 * GST_MSECOND);
+  fail_unless_equals_int (GST_TEST_MONO_SOURCE (elem)->val_ulong, 200);;
+  gst_controller_sync_values (ctrl, 1000 * GST_MSECOND);
+  fail_unless_equals_int (GST_TEST_MONO_SOURCE (elem)->val_ulong, 0);;
+  gst_controller_sync_values (ctrl, 1250 * GST_MSECOND);
+  fail_unless_equals_int (GST_TEST_MONO_SOURCE (elem)->val_ulong, 0);;
+  gst_controller_sync_values (ctrl, 1500 * GST_MSECOND);
+  fail_unless_equals_int (GST_TEST_MONO_SOURCE (elem)->val_ulong, 200);;
+  gst_controller_sync_values (ctrl, 1750 * GST_MSECOND);
+  fail_unless_equals_int (GST_TEST_MONO_SOURCE (elem)->val_ulong, 200);;
+  gst_controller_sync_values (ctrl, 2000 * GST_MSECOND);
+  fail_unless_equals_int (GST_TEST_MONO_SOURCE (elem)->val_ulong, 0);;
+  gst_controller_sync_values (ctrl, 1250 * GST_MSECOND);
+  fail_unless_equals_int (GST_TEST_MONO_SOURCE (elem)->val_ulong, 0);;
+  gst_controller_sync_values (ctrl, 1500 * GST_MSECOND);
+  fail_unless_equals_int (GST_TEST_MONO_SOURCE (elem)->val_ulong, 200);;
+  gst_controller_sync_values (ctrl, 1750 * GST_MSECOND);
+  fail_unless_equals_int (GST_TEST_MONO_SOURCE (elem)->val_ulong, 200);;
+
+  GST_INFO ("controller->ref_count=%d", G_OBJECT (ctrl)->ref_count);
+  g_object_unref (ctrl);
+  gst_object_unref (elem);
+  
+    std_log(LOG_FILENAME_LINE, "Test Successful");
+  create_xml(0);
+  
+}
+
+
+
+/* test lfo control source with saw waveform */
+void controller_lfo_saw()
+{
+  GstController *ctrl;
+  GstLFOControlSource *csource;
+  GstElement *elem;
+  GValue amp = { 0, }
+  , off = {
+  0,};
+
+	xmlfile = "controller_lfo_saw";
+  std_log(LOG_FILENAME_LINE, "Test Started controller_lfo_saw");
+  
+  gst_controller_init (NULL, NULL);
+
+  elem = gst_element_factory_make ("testmonosource", "test_source");
+
+  /* that property should exist and should be controllable */
+  ctrl = gst_controller_new (G_OBJECT (elem), "ulong", NULL);
+  fail_unless (ctrl != NULL, NULL);
+
+  /* Get interpolation control source */
+  csource = gst_lfo_control_source_new ();
+
+  fail_unless (csource != NULL);
+  fail_unless (gst_controller_set_control_source (ctrl, "ulong",
+          GST_CONTROL_SOURCE (csource)));
+
+  /* set amplitude and offset values */
+  g_value_init (&amp, G_TYPE_ULONG);
+  g_value_init (&off, G_TYPE_ULONG);
+  g_value_set_ulong (&amp, 100);
+  g_value_set_ulong (&off, 100);
+
+  /* set waveform mode */
+  g_object_set (csource, "waveform", GST_LFO_WAVEFORM_SAW,
+      "frequency", 1.0, "timeshift", (GstClockTime) 0,
+      "amplitude", &amp, "offset", &off, NULL);
+
+  g_object_unref (G_OBJECT (csource));
+
+  /* now pull in values for some timestamps */
+  gst_controller_sync_values (ctrl, 0 * GST_MSECOND);
+  fail_unless_equals_int (GST_TEST_MONO_SOURCE (elem)->val_ulong, 200);;
+  gst_controller_sync_values (ctrl, 250 * GST_MSECOND);
+  fail_unless_equals_int (GST_TEST_MONO_SOURCE (elem)->val_ulong, 150);;
+  gst_controller_sync_values (ctrl, 500 * GST_MSECOND);
+  fail_unless_equals_int (GST_TEST_MONO_SOURCE (elem)->val_ulong, 100);;
+  gst_controller_sync_values (ctrl, 750 * GST_MSECOND);
+  fail_unless_equals_int (GST_TEST_MONO_SOURCE (elem)->val_ulong, 50);;
+  gst_controller_sync_values (ctrl, 1000 * GST_MSECOND);
+  fail_unless_equals_int (GST_TEST_MONO_SOURCE (elem)->val_ulong, 200);;
+  gst_controller_sync_values (ctrl, 1250 * GST_MSECOND);
+  fail_unless_equals_int (GST_TEST_MONO_SOURCE (elem)->val_ulong, 150);;
+  gst_controller_sync_values (ctrl, 1500 * GST_MSECOND);
+  fail_unless_equals_int (GST_TEST_MONO_SOURCE (elem)->val_ulong, 100);;
+  gst_controller_sync_values (ctrl, 1750 * GST_MSECOND);
+  fail_unless_equals_int (GST_TEST_MONO_SOURCE (elem)->val_ulong, 50);;
+  gst_controller_sync_values (ctrl, 2000 * GST_MSECOND);
+  fail_unless_equals_int (GST_TEST_MONO_SOURCE (elem)->val_ulong, 200);;
+  gst_controller_sync_values (ctrl, 1250 * GST_MSECOND);
+  fail_unless_equals_int (GST_TEST_MONO_SOURCE (elem)->val_ulong, 150);;
+  gst_controller_sync_values (ctrl, 1500 * GST_MSECOND);
+  fail_unless_equals_int (GST_TEST_MONO_SOURCE (elem)->val_ulong, 100);;
+  gst_controller_sync_values (ctrl, 1750 * GST_MSECOND);
+  fail_unless_equals_int (GST_TEST_MONO_SOURCE (elem)->val_ulong, 50);;
+
+  GST_INFO ("controller->ref_count=%d", G_OBJECT (ctrl)->ref_count);
+  g_object_unref (ctrl);
+  gst_object_unref (elem);
+  
+   std_log(LOG_FILENAME_LINE, "Test Successful");
+  create_xml(0);
+  
+}
+
+
+
+/* test lfo control source with reverse saw waveform */
+void controller_lfo_rsaw()
+{
+  GstController *ctrl;
+  GstLFOControlSource *csource;
+  GstElement *elem;
+  GValue amp = { 0, }
+  , off = {
+  0,};
+  
+  	xmlfile = "controller_lfo_rsaw";
+  std_log(LOG_FILENAME_LINE, "Test Started controller_lfo_rsaw");
+  
+
+  gst_controller_init (NULL, NULL);
+
+  elem = gst_element_factory_make ("testmonosource", "test_source");
+
+  /* that property should exist and should be controllable */
+  ctrl = gst_controller_new (G_OBJECT (elem), "ulong", NULL);
+  fail_unless (ctrl != NULL, NULL);
+
+  /* Get interpolation control source */
+  csource = gst_lfo_control_source_new ();
+
+  fail_unless (csource != NULL);
+  fail_unless (gst_controller_set_control_source (ctrl, "ulong",
+          GST_CONTROL_SOURCE (csource)));
+
+  /* set amplitude and offset values */
+  g_value_init (&amp, G_TYPE_ULONG);
+  g_value_init (&off, G_TYPE_ULONG);
+  g_value_set_ulong (&amp, 100);
+  g_value_set_ulong (&off, 100);
+
+  /* set waveform mode */
+  g_object_set (csource, "waveform", GST_LFO_WAVEFORM_REVERSE_SAW,
+      "frequency", 1.0, "timeshift", (GstClockTime) 0,
+      "amplitude", &amp, "offset", &off, NULL);
+
+  g_object_unref (G_OBJECT (csource));
+
+  /* now pull in values for some timestamps */
+  gst_controller_sync_values (ctrl, 0 * GST_MSECOND);
+  fail_unless_equals_int (GST_TEST_MONO_SOURCE (elem)->val_ulong, 0);;
+  gst_controller_sync_values (ctrl, 250 * GST_MSECOND);
+  fail_unless_equals_int (GST_TEST_MONO_SOURCE (elem)->val_ulong, 50);;
+  gst_controller_sync_values (ctrl, 500 * GST_MSECOND);
+  fail_unless_equals_int (GST_TEST_MONO_SOURCE (elem)->val_ulong, 100);;
+  gst_controller_sync_values (ctrl, 750 * GST_MSECOND);
+  fail_unless_equals_int (GST_TEST_MONO_SOURCE (elem)->val_ulong, 150);;
+  gst_controller_sync_values (ctrl, 1000 * GST_MSECOND);
+  fail_unless_equals_int (GST_TEST_MONO_SOURCE (elem)->val_ulong, 0);;
+  gst_controller_sync_values (ctrl, 1250 * GST_MSECOND);
+  fail_unless_equals_int (GST_TEST_MONO_SOURCE (elem)->val_ulong, 50);;
+  gst_controller_sync_values (ctrl, 1500 * GST_MSECOND);
+  fail_unless_equals_int (GST_TEST_MONO_SOURCE (elem)->val_ulong, 100);;
+  gst_controller_sync_values (ctrl, 1750 * GST_MSECOND);
+  fail_unless_equals_int (GST_TEST_MONO_SOURCE (elem)->val_ulong, 150);;
+  gst_controller_sync_values (ctrl, 2000 * GST_MSECOND);
+  fail_unless_equals_int (GST_TEST_MONO_SOURCE (elem)->val_ulong, 0);;
+  gst_controller_sync_values (ctrl, 1250 * GST_MSECOND);
+  fail_unless_equals_int (GST_TEST_MONO_SOURCE (elem)->val_ulong, 50);;
+  gst_controller_sync_values (ctrl, 1500 * GST_MSECOND);
+  fail_unless_equals_int (GST_TEST_MONO_SOURCE (elem)->val_ulong, 100);;
+  gst_controller_sync_values (ctrl, 1750 * GST_MSECOND);
+  fail_unless_equals_int (GST_TEST_MONO_SOURCE (elem)->val_ulong, 150);;
+
+  GST_INFO ("controller->ref_count=%d", G_OBJECT (ctrl)->ref_count);
+  g_object_unref (ctrl);
+  gst_object_unref (elem);
+  
+  std_log(LOG_FILENAME_LINE, "Test Successful");
+  create_xml(0);
+  
+}
+
+
+
+/* test lfo control source with saw waveform */
+void controller_lfo_triangle()
+{
+  GstController *ctrl;
+  GstLFOControlSource *csource;
+  GstElement *elem;
+  GValue amp = { 0, }
+  , off = {
+  0,};
+
+	xmlfile = "controller_lfo_triangle";
+  std_log(LOG_FILENAME_LINE, "Test Started controller_lfo_triangle");
+  
+  gst_controller_init (NULL, NULL);
+
+  elem = gst_element_factory_make ("testmonosource", "test_source");
+
+  /* that property should exist and should be controllable */
+  ctrl = gst_controller_new (G_OBJECT (elem), "ulong", NULL);
+  fail_unless (ctrl != NULL, NULL);
+
+  /* Get interpolation control source */
+  csource = gst_lfo_control_source_new ();
+
+  fail_unless (csource != NULL);
+  fail_unless (gst_controller_set_control_source (ctrl, "ulong",
+          GST_CONTROL_SOURCE (csource)));
+
+  /* set amplitude and offset values */
+  g_value_init (&amp, G_TYPE_ULONG);
+  g_value_init (&off, G_TYPE_ULONG);
+  g_value_set_ulong (&amp, 100);
+  g_value_set_ulong (&off, 100);
+
+  /* set waveform mode */
+  g_object_set (csource, "waveform", GST_LFO_WAVEFORM_TRIANGLE,
+      "frequency", 1.0, "timeshift", (GstClockTime) 0,
+      "amplitude", &amp, "offset", &off, NULL);
+
+  g_object_unref (G_OBJECT (csource));
+
+  /* now pull in values for some timestamps */
+  gst_controller_sync_values (ctrl, 0 * GST_MSECOND);
+  fail_unless_equals_int (GST_TEST_MONO_SOURCE (elem)->val_ulong, 100);;
+  gst_controller_sync_values (ctrl, 250 * GST_MSECOND);
+  fail_unless_equals_int (GST_TEST_MONO_SOURCE (elem)->val_ulong, 200);;
+  gst_controller_sync_values (ctrl, 500 * GST_MSECOND);
+  fail_unless_equals_int (GST_TEST_MONO_SOURCE (elem)->val_ulong, 100);;
+  gst_controller_sync_values (ctrl, 750 * GST_MSECOND);
+  fail_unless_equals_int (GST_TEST_MONO_SOURCE (elem)->val_ulong, 0);;
+  gst_controller_sync_values (ctrl, 1000 * GST_MSECOND);
+  fail_unless_equals_int (GST_TEST_MONO_SOURCE (elem)->val_ulong, 100);;
+  gst_controller_sync_values (ctrl, 1250 * GST_MSECOND);
+  fail_unless_equals_int (GST_TEST_MONO_SOURCE (elem)->val_ulong, 200);;
+  gst_controller_sync_values (ctrl, 1500 * GST_MSECOND);
+  fail_unless_equals_int (GST_TEST_MONO_SOURCE (elem)->val_ulong, 100);;
+  gst_controller_sync_values (ctrl, 1750 * GST_MSECOND);
+  fail_unless_equals_int (GST_TEST_MONO_SOURCE (elem)->val_ulong, 0);;
+  gst_controller_sync_values (ctrl, 2000 * GST_MSECOND);
+  fail_unless_equals_int (GST_TEST_MONO_SOURCE (elem)->val_ulong, 100);;
+  gst_controller_sync_values (ctrl, 1250 * GST_MSECOND);
+  fail_unless_equals_int (GST_TEST_MONO_SOURCE (elem)->val_ulong, 200);;
+  gst_controller_sync_values (ctrl, 1500 * GST_MSECOND);
+  fail_unless_equals_int (GST_TEST_MONO_SOURCE (elem)->val_ulong, 100);;
+  gst_controller_sync_values (ctrl, 1750 * GST_MSECOND);
+  fail_unless_equals_int (GST_TEST_MONO_SOURCE (elem)->val_ulong, 0);;
+
+  GST_INFO ("controller->ref_count=%d", G_OBJECT (ctrl)->ref_count);
+  g_object_unref (ctrl);
+  gst_object_unref (elem);
+  
+  std_log(LOG_FILENAME_LINE, "Test Successful");
+  create_xml(0);
+  
+}
+
+
+
+/* test lfo control source with nothing set */
+void controller_lfo_none()
+{
+  GstController *ctrl;
+  GstLFOControlSource *csource;
+  GstElement *elem;
+  
+  	xmlfile = "controller_lfo_none";
+  std_log(LOG_FILENAME_LINE, "Test Started controller_lfo_none");
+  
+
+  gst_controller_init (NULL, NULL);
+
+  elem = gst_element_factory_make ("testmonosource", "test_source");
+
+  /* that property should exist and should be controllable */
+  ctrl = gst_controller_new (G_OBJECT (elem), "ulong", NULL);
+  fail_unless (ctrl != NULL, NULL);
+
+  /* Get interpolation control source */
+  csource = gst_lfo_control_source_new ();
+
+  fail_unless (csource != NULL);
+  fail_unless (gst_controller_set_control_source (ctrl, "ulong",
+          GST_CONTROL_SOURCE (csource)));
+
+  g_object_unref (G_OBJECT (csource));
+
+  /* now pull in values for some timestamps */
+  gst_controller_sync_values (ctrl, 0 * GST_MSECOND);
+  fail_unless_equals_int (GST_TEST_MONO_SOURCE (elem)->val_ulong, 0);;
+  gst_controller_sync_values (ctrl, 250 * GST_MSECOND);
+  fail_unless_equals_int (GST_TEST_MONO_SOURCE (elem)->val_ulong, 0);;
+  gst_controller_sync_values (ctrl, 500 * GST_MSECOND);
+  fail_unless_equals_int (GST_TEST_MONO_SOURCE (elem)->val_ulong, 0);;
+  gst_controller_sync_values (ctrl, 750 * GST_MSECOND);
+  fail_unless_equals_int (GST_TEST_MONO_SOURCE (elem)->val_ulong, 0);;
+  gst_controller_sync_values (ctrl, 1000 * GST_MSECOND);
+  fail_unless_equals_int (GST_TEST_MONO_SOURCE (elem)->val_ulong, 0);;
+  gst_controller_sync_values (ctrl, 1250 * GST_MSECOND);
+  fail_unless_equals_int (GST_TEST_MONO_SOURCE (elem)->val_ulong, 0);;
+  gst_controller_sync_values (ctrl, 1500 * GST_MSECOND);
+  fail_unless_equals_int (GST_TEST_MONO_SOURCE (elem)->val_ulong, 0);;
+  gst_controller_sync_values (ctrl, 1750 * GST_MSECOND);
+  fail_unless_equals_int (GST_TEST_MONO_SOURCE (elem)->val_ulong, 0);;
+  gst_controller_sync_values (ctrl, 2000 * GST_MSECOND);
+  fail_unless_equals_int (GST_TEST_MONO_SOURCE (elem)->val_ulong, 0);;
+  gst_controller_sync_values (ctrl, 1250 * GST_MSECOND);
+  fail_unless_equals_int (GST_TEST_MONO_SOURCE (elem)->val_ulong, 0);;
+  gst_controller_sync_values (ctrl, 1500 * GST_MSECOND);
+  fail_unless_equals_int (GST_TEST_MONO_SOURCE (elem)->val_ulong, 0);;
+  gst_controller_sync_values (ctrl, 1750 * GST_MSECOND);
+  fail_unless_equals_int (GST_TEST_MONO_SOURCE (elem)->val_ulong, 0);;
+
+  GST_INFO ("controller->ref_count=%d", G_OBJECT (ctrl)->ref_count);
+  g_object_unref (ctrl);
+  gst_object_unref (elem);
+  
+    std_log(LOG_FILENAME_LINE, "Test Successful");
+  create_xml(0);
+  
+}
+
+
+
+/* tests if we can run helper methods against any GObject */
+void controller_helper_any_gobject()
+{
+  GstElement *elem;
+  gboolean res;
+
+  	xmlfile = "controller_helper_any_gobject";
+  std_log(LOG_FILENAME_LINE, "Test Started controller_helper_any_gobject");
+  
+  gst_controller_init (NULL, NULL);
+
+  elem = gst_element_factory_make ("bin", "test_elem");
+
+  /* that element is not controllable */
+  res = gst_object_sync_values (G_OBJECT (elem), 0LL);
+  fail_unless (res == FALSE, NULL);
+
+  gst_object_unref (elem);
+     std_log(LOG_FILENAME_LINE, "Test Successful");
+  create_xml(0);
+  
+  
+}
+
+
+
+void controller_refcount_new_list()
+{
+  GstController *ctrl, *ctrl2;
+  GstElement *elem;
+  GList *list = NULL;
+
+
+  	xmlfile = "controller_refcount_new_list";
+  std_log(LOG_FILENAME_LINE, "Test Started controller_refcount_new_list");
+  
+  
+  gst_controller_init (NULL, NULL);
+
+  /* that property should exist and should be controllable */
+  elem = gst_element_factory_make ("testmonosource", "test_source");
+  list = g_list_append (NULL, "ulong");
+  ctrl = gst_controller_new_list (G_OBJECT (elem), list);
+  fail_unless (ctrl != NULL, NULL);
+  GST_INFO ("controller->ref_count=%d", G_OBJECT (ctrl)->ref_count);
+  fail_unless_equals_int (G_OBJECT (ctrl)->ref_count, 1);
+  g_list_free (list);
+  g_object_unref (ctrl);
+  gst_object_unref (elem);
+
+  /* try the same property twice, make sure the refcount is still 1 */
+  elem = gst_element_factory_make ("testmonosource", "test_source");
+  list = g_list_append (NULL, "ulong");
+  list = g_list_append (list, "ulong");
+  ctrl = gst_controller_new_list (G_OBJECT (elem), list);
+  fail_unless (ctrl != NULL, NULL);
+  GST_INFO ("controller->ref_count=%d", G_OBJECT (ctrl)->ref_count);
+  fail_unless_equals_int (G_OBJECT (ctrl)->ref_count, 1);
+  g_list_free (list);
+  g_object_unref (ctrl);
+  gst_object_unref (elem);
+
+  /* try two properties, make sure the refcount is still 1 */
+  elem = gst_element_factory_make ("testmonosource", "test_source");
+  list = g_list_append (NULL, "ulong");
+  list = g_list_append (list, "boolean");
+  ctrl = gst_controller_new_list (G_OBJECT (elem), list);
+  fail_unless (ctrl != NULL, NULL);
+  GST_INFO ("controller->ref_count=%d", G_OBJECT (ctrl)->ref_count);
+  fail_unless_equals_int (G_OBJECT (ctrl)->ref_count, 1);
+  g_list_free (list);
+  g_object_unref (ctrl);
+  gst_object_unref (elem);
+
+  /* try _new_list with existing controller */
+  elem = gst_element_factory_make ("testmonosource", "test_source");
+  ctrl = gst_controller_new (G_OBJECT (elem), "ulong", NULL);
+  fail_unless (ctrl != NULL, NULL);
+  GST_INFO ("controller->ref_count=%d", G_OBJECT (ctrl)->ref_count);
+  list = g_list_append (NULL, "ulong");
+  ctrl2 = gst_controller_new_list (G_OBJECT (elem), list);
+  fail_unless (ctrl2 != NULL, NULL);
+  fail_unless (ctrl == ctrl2, NULL);
+  GST_INFO ("controller->ref_count=%d", G_OBJECT (ctrl)->ref_count);
+  fail_unless_equals_int (G_OBJECT (ctrl)->ref_count, 2);
+  g_list_free (list);
+  g_object_unref (ctrl);
+  g_object_unref (ctrl2);
+  gst_object_unref (elem);
+
+  /* try _new_list first and then _new */
+  elem = gst_element_factory_make ("testmonosource", "test_source");
+  list = g_list_append (NULL, "ulong");
+  ctrl = gst_controller_new_list (G_OBJECT (elem), list);
+  fail_unless (ctrl != NULL, NULL);
+  GST_INFO ("controller->ref_count=%d", G_OBJECT (ctrl)->ref_count);
+  ctrl2 = gst_controller_new (G_OBJECT (elem), "ulong", NULL);
+  fail_unless (ctrl2 != NULL, NULL);
+  fail_unless (ctrl == ctrl2, NULL);
+  GST_INFO ("controller->ref_count=%d", G_OBJECT (ctrl)->ref_count);
+  fail_unless_equals_int (G_OBJECT (ctrl)->ref_count, 2);
+  g_list_free (list);
+  g_object_unref (ctrl);
+  g_object_unref (ctrl2);
+  gst_object_unref (elem);
+  
+  std_log(LOG_FILENAME_LINE, "Test Successful");
+  create_xml(0);
+  
+}
+
+
+
+void
+gst_controller_suite (void)
+{
+controller_init();
+controller_refcount_new_list();
+controller_new_fail1();
+controller_new_fail2();
+controller_new_fail3();
+controller_new_fail4();
+controller_new_fail5();
+controller_new_okay1();
+controller_new_okay2();
+controller_new_okay3();
+controller_param_twice();
+controller_finalize();
+controller_controlsource_refcounts();
+controller_interpolate_none();
+controller_interpolate_trigger();
+controller_interpolate_linear();
+controller_interpolate_cubic();
+controller_interpolate_unimplemented();
+controller_interpolation_unset();
+controller_interpolation_unset_all();
+controller_interpolation_linear_value_array();
+controller_interpolation_linear_invalid_values();
+controller_interpolation_linear_default_values();
+controller_interpolate_linear_disabled();
+controller_interpolation_set_from_list();
+controller_lfo_sine();
+controller_lfo_sine_timeshift();
+controller_lfo_square();
+controller_lfo_saw();
+controller_lfo_rsaw();
+controller_lfo_triangle();
+controller_lfo_none();
+controller_helper_any_gobject();
+}
+
+void (*fn[]) (void) = {
+controller_init,
+controller_refcount_new_list,
+controller_new_fail1,
+controller_new_fail2,
+controller_new_fail3,
+controller_new_fail4,
+controller_new_fail5,
+controller_new_okay1,
+controller_new_okay2,
+controller_new_okay3,
+controller_param_twice,
+controller_finalize,
+controller_controlsource_refcounts,
+controller_interpolate_none,
+controller_interpolate_trigger,
+controller_interpolate_linear,
+controller_interpolate_cubic,
+controller_interpolate_unimplemented,
+controller_interpolation_unset,
+controller_interpolation_unset_all,
+controller_interpolation_linear_value_array,
+controller_interpolation_linear_invalid_values,
+controller_interpolation_linear_default_values,
+controller_interpolate_linear_disabled,
+controller_interpolation_set_from_list,
+controller_lfo_sine,
+controller_lfo_sine_timeshift,
+controller_lfo_square,
+controller_lfo_saw,
+controller_lfo_rsaw,
+controller_lfo_triangle,
+controller_lfo_none,
+controller_helper_any_gobject
+};
+
+char *args[] = {
+"controller_init",
+"controller_refcount_new_list",
+"controller_new_fail1",
+"controller_new_fail2",
+"controller_new_fail3",
+"controller_new_fail4",
+"controller_new_fail5",
+"controller_new_okay1",
+"controller_new_okay2",
+"controller_new_okay3",
+"controller_param_twice",
+"controller_finalize",
+"controller_controlsource_refcounts",
+"controller_interpolate_none",
+"controller_interpolate_trigger",
+"controller_interpolate_linear",
+"controller_interpolate_cubic",
+"controller_interpolate_unimplemented",
+"controller_interpolation_unset",
+"controller_interpolation_unset_all",
+"controller_interpolation_linear_value_array",
+"controller_interpolation_linear_invalid_values",
+"controller_interpolation_linear_default_values",
+"controller_interpolate_linear_disabled",
+"controller_interpolation_set_from_list",
+"controller_lfo_sine",
+"controller_lfo_sine_timeshift",
+"controller_lfo_square",
+"controller_lfo_saw",
+"controller_lfo_rsaw",
+"controller_lfo_triangle",
+"controller_lfo_none",
+"controller_helper_any_gobject"
+};
+
+GST_CHECK_MAIN (gst_controller);
+#if 0 
+int main(int argc,char** argv)
+{
+		int i;
+		gst_init(&argc,&argv);
+		for(i=0;i<33;i++)
+			fn[i]();
+			
+} 
+#endif
\ No newline at end of file