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diff --git a/subprojects/gst-plugins-bad/sys/winks/kshelpers.h b/subprojects/gst-plugins-bad/sys/winks/kshelpers.h
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+/*
+ * Copyright (C) 2008 Ole André Vadla Ravnås <ole.andre.ravnas@tandberg.com>
+ *
+ * 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., 51 Franklin St, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#ifndef __KSHELPERS_H__
+#define __KSHELPERS_H__
+
+#include <glib.h>
+#include <windows.h>
+#include <mmsystem.h>
+#include <ks.h>
+
+G_BEGIN_DECLS
+
+typedef struct _KsDeviceEntry KsDeviceEntry;
+
+struct _KsDeviceEntry
+{
+ guint index;
+ gchar * name;
+ gchar * path;
+};
+
+gboolean ks_is_valid_handle (HANDLE h);
+
+GList * ks_enumerate_devices (const GUID * devtype, const GUID * direction_category);
+void ks_device_entry_free (KsDeviceEntry * entry);
+void ks_device_list_free (GList * devices);
+
+gboolean ks_filter_get_pin_property (HANDLE filter_handle, gulong pin_id, GUID prop_set, gulong prop_id, gpointer value, gulong value_size, gulong * error);
+gboolean ks_filter_get_pin_property_multi (HANDLE filter_handle, gulong pin_id, GUID prop_set, gulong prop_id, KSMULTIPLE_ITEM ** items, gulong * error);
+
+gboolean ks_object_query_property (HANDLE handle, GUID prop_set, gulong prop_id, gulong prop_flags, gpointer * value, gulong * value_size, gulong * error);
+gboolean ks_object_get_property (HANDLE handle, GUID prop_set, gulong prop_id, gpointer * value, gulong * value_size, gulong * error);
+gboolean ks_object_set_property (HANDLE handle, GUID prop_set, gulong prop_id, gpointer value, gulong value_size, gulong * error);
+
+gboolean ks_object_get_supported_property_sets (HANDLE handle, GUID ** propsets, gulong * len);
+
+gboolean ks_object_set_connection_state (HANDLE handle, KSSTATE state, gulong * error);
+
+gchar * ks_guid_to_string (const GUID * guid);
+const gchar * ks_state_to_string (KSSTATE state);
+gchar * ks_options_flags_to_string (gulong flags);
+gchar * ks_property_set_to_string (const GUID * guid);
+
+G_END_DECLS
+
+#endif /* __KSHELPERS_H__ */