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diff --git a/gst-plugins-base-subtitles0.10/gst-libs/gst/interfaces/propertyprobe.h b/gst-plugins-base-subtitles0.10/gst-libs/gst/interfaces/propertyprobe.h
new file mode 100644
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+++ b/gst-plugins-base-subtitles0.10/gst-libs/gst/interfaces/propertyprobe.h
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+/* GStreamer PropertyProbe
+ * Copyright (C) 2003 David A. Schleef <ds@schleef.org>
+ *
+ * property_probe.h: property_probe interface design
+ *
+ * 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_PROPERTY_PROBE_H__
+#define __GST_PROPERTY_PROBE_H__
+
+#include <gst/gst.h>
+
+G_BEGIN_DECLS
+
+#define GST_TYPE_PROPERTY_PROBE \
+  (gst_property_probe_get_type ())
+#define GST_PROPERTY_PROBE(obj) \
+  (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_PROPERTY_PROBE, GstPropertyProbe))
+#define GST_IS_PROPERTY_PROBE(obj) \
+  (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_PROPERTY_PROBE))
+#define GST_PROPERTY_PROBE_GET_IFACE(obj) \
+  (G_TYPE_INSTANCE_GET_INTERFACE ((obj), GST_TYPE_PROPERTY_PROBE, GstPropertyProbeInterface))
+
+/**
+ * GstPropertyProbe:
+ *
+ * Opaque #GstPropertyProbe data structure.
+ */
+typedef struct _GstPropertyProbe GstPropertyProbe; /* dummy typedef */
+typedef struct _GstPropertyProbeInterface GstPropertyProbeInterface;
+
+/**
+ * GstPropertyProbeInterface:
+ * @klass: parent interface type.
+ * @probe_needed: default signal handler
+ * @get_properties: virtual method to get list of probable properties
+ * @needs_probe: virtual method to tell if probe need update
+ * @probe_property: virtual method to probe a property
+ * @get_values: virtual method to get probe results for a property
+ *
+ * #GstPropertyProbe interface.
+ */
+struct _GstPropertyProbeInterface {
+  GTypeInterface klass;
+
+  /* signals */
+  void          (*probe_needed)   (GstPropertyProbe *probe,
+                                   const GParamSpec *pspec);
+
+  /* virtual functions */
+  const GList * (*get_properties) (GstPropertyProbe *probe);
+  gboolean      (*needs_probe)    (GstPropertyProbe *probe,
+                                   guint             prop_id,
+                                   const GParamSpec *pspec);
+  void          (*probe_property) (GstPropertyProbe *probe,
+                                   guint             prop_id,
+                                   const GParamSpec *pspec);
+  GValueArray * (*get_values)     (GstPropertyProbe *probe,
+                                   guint             prop_id,
+                                   const GParamSpec *pspec);
+
+  /*< private >*/
+  gpointer _gst_reserved[GST_PADDING];
+};
+
+GType        gst_property_probe_get_type       (void);
+
+/* virtual class function wrappers */
+
+/* returns list of GParamSpecs */
+const GList *     gst_property_probe_get_properties      (GstPropertyProbe *probe);
+const GParamSpec *gst_property_probe_get_property        (GstPropertyProbe *probe,
+                                                          const gchar      *name);
+
+/* probe one property */
+void              gst_property_probe_probe_property      (GstPropertyProbe *probe,
+                                                          const GParamSpec *pspec);
+void              gst_property_probe_probe_property_name (GstPropertyProbe *probe,
+                                                          const gchar      *name);
+
+/* do we need a probe? */
+gboolean          gst_property_probe_needs_probe         (GstPropertyProbe *probe,
+                                                          const GParamSpec *pspec);
+gboolean          gst_property_probe_needs_probe_name    (GstPropertyProbe *probe,
+                                                          const gchar      *name);
+
+/* returns list of GValues */
+GValueArray *     gst_property_probe_get_values          (GstPropertyProbe *probe,
+                                                          const GParamSpec *pspec);
+GValueArray *     gst_property_probe_get_values_name     (GstPropertyProbe *probe,
+                                                          const gchar      *name);
+
+/* sugar */
+GValueArray *     gst_property_probe_probe_and_get_values (GstPropertyProbe *probe,
+                                                          const GParamSpec *pspec);
+GValueArray *     gst_property_probe_probe_and_get_values_name (GstPropertyProbe *probe,
+                                                          const gchar      *name);
+
+G_END_DECLS
+
+#endif /* __GST_PROPERTY_PROBE_H__ */