--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gst_plugins_base/gst/volume/gstvolume.h	Thu Dec 17 08:53:32 2009 +0200
@@ -0,0 +1,76 @@
+/* -*- c-basic-offset: 2 -*-
+ * vi:si:et:sw=2:sts=8:ts=8:expandtab
+ *
+ * GStreamer
+ * Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
+ *
+ * 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_VOLUME_H__
+#define __GST_VOLUME_H__
+
+#include <gst/gst.h>
+#include <gst/base/gstbasetransform.h>
+#include <gst/audio/audio.h>
+#include <gst/audio/gstaudiofilter.h>
+
+G_BEGIN_DECLS
+
+#define GST_TYPE_VOLUME \
+  (gst_volume_get_type())
+#define GST_VOLUME(obj) \
+  (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_VOLUME,GstVolume))
+#define GST_VOLUME_CLASS(klass) \
+  (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_VOLUME,GstVolumeClass))
+#define GST_IS_VOLUME(obj) \
+  (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_VOLUME))
+#define GST_IS_VOLUME_CLASS(klass) \
+  (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_VOLUME))
+
+typedef struct _GstVolume GstVolume;
+typedef struct _GstVolumeClass GstVolumeClass;
+
+/**
+ * GstVolume:
+ *
+ * Opaque data structure.
+ */
+struct _GstVolume {
+  GstAudioFilter element;
+
+  void (*process)(GstVolume*, gpointer, guint);
+
+  gboolean mute;
+  gint   volume_i32, real_vol_i32;
+  gint   volume_i24, real_vol_i24; /* the _i(nt) values get synchronized with the */
+  gint   volume_i16, real_vol_i16; /* the _i(nt) values get synchronized with the */
+  gint   volume_i8, real_vol_i8;   /* the _i(nt) values get synchronized with the */
+  gfloat volume_f, real_vol_f; /* _f(loat) values on each update */
+  
+  GList *tracklist;
+  gboolean silent_buffer;       /* flag for silent buffers */
+};
+
+struct _GstVolumeClass {
+  GstAudioFilterClass parent_class;
+};
+
+GType gst_volume_get_type (void);
+
+G_END_DECLS
+
+#endif /* __GST_VOLUME_H__ */