/* -*- 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;

  gfloat volume;

  gboolean current_mute;

  gfloat current_volume;

  gint   current_vol_i32;

  gint   current_vol_i24; /* the _i(nt) values get synchronized with the */

  gint   current_vol_i16; /* the _i(nt) values get synchronized with the */

  gint   current_vol_i8;   /* the _i(nt) values get synchronized with the */

  GList *tracklist;

  gboolean negotiated;

};

struct _GstVolumeClass {

  GstAudioFilterClass parent_class;

};

#ifdef __SYMBIAN32__

IMPORT_C

#endif

GType gst_volume_get_type (void);

G_END_DECLS

#endif /* __GST_VOLUME_H__ */