--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gst_plugins_good/gst/audiofx/audiowsincband.h	Wed Mar 24 18:04:17 2010 -0500
@@ -0,0 +1,85 @@
+/* -*- c-basic-offset: 2 -*-
+ * 
+ * GStreamer
+ * Copyright (C) 1999-2001 Erik Walthinsen <omega@cse.ogi.edu>
+ *               2006 Dreamlab Technologies Ltd. <mathis.hofer@dreamlab.net>
+ *               2007-2009 Sebastian Dröge <sebastian.droege@collabora.co.uk>
+ *
+ * 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.
+ * 
+ * 
+ * this windowed sinc filter is taken from the freely downloadable DSP book,
+ * "The Scientist and Engineer's Guide to Digital Signal Processing",
+ * chapter 16
+ * available at http://www.dspguide.com/
+ *
+ */
+
+#ifndef __GST_AUDIO_WSINC_BAND_H__
+#define __GST_AUDIO_WSINC_BAND_H__
+
+#include <gst/gst.h>
+#include <gst/audio/gstaudiofilter.h>
+#include <gst/gst_global.h>
+
+#include "audiofxbasefirfilter.h"
+
+G_BEGIN_DECLS
+
+#define GST_TYPE_AUDIO_WSINC_BAND \
+  (gst_audio_wsincband_get_type())
+#define GST_AUDIO_WSINC_BAND(obj) \
+  (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_AUDIO_WSINC_BAND,GstAudioWSincBand))
+#define GST_AUDIO_WSINC_BAND_CLASS(klass) \
+  (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_AUDIO_WSINC_BAND,GstAudioWSincBandClass))
+#define GST_IS_AUDIO_WSINC_BAND(obj) \
+  (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_AUDIO_WSINC_BAND))
+#define GST_IS_AUDIO_WSINC_BAND_CLASS(klass) \
+  (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_AUDIO_WSINC_BAND))
+
+typedef struct _GstAudioWSincBand GstAudioWSincBand;
+typedef struct _GstAudioWSincBandClass GstAudioWSincBandClass;
+
+/**
+ * GstAudioWSincBand:
+ *
+ * Opaque data structure.
+ */
+struct _GstAudioWSincBand {
+  GstAudioFXBaseFIRFilter parent;
+
+  gint mode;
+  gint window;
+  gfloat lower_frequency, upper_frequency;
+  gint kernel_length;           /* length of the filter kernel */
+
+  /* < private > */
+  GMutex *lock;
+};
+
+struct _GstAudioWSincBandClass {
+  GstAudioFilterClass parent;
+};
+#ifdef __SYMBIAN32__
+IMPORT_C
+#endif
+
+
+GType gst_audio_wsincband_get_type (void);
+
+G_END_DECLS
+
+#endif /* __GST_AUDIO_WSINC_BAND_H__ */