/* ALSA mixer track object.

 * Copyright (C) 2003 Leif Johnson <leif@ambient.2y.net>

 *

 * 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., 675 Mass Ave, Cambridge, MA 02139, USA.

 */

#ifndef __GST_ALSA_MIXER_TRACK_H__

#define __GST_ALSA_MIXER_TRACK_H__

#include "gstalsa.h"

#include <gst/interfaces/mixertrack.h>

G_BEGIN_DECLS

#define GST_ALSA_MIXER_TRACK_TYPE               (gst_alsa_mixer_track_get_type ())

#define GST_ALSA_MIXER_TRACK(obj)               (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_ALSA_MIXER_TRACK,GstAlsaMixerTrack))

#define GST_ALSA_MIXER_TRACK_CLASS(klass)       (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_ALSA_MIXER_TRACK,GstAlsaMixerTrackClass))

#define GST_IS_ALSA_MIXER_TRACK(obj)            (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_ALSA_MIXER_TRACK))

#define GST_IS_ALSA_MIXER_TRACK_CLASS(klass)    (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_ALSA_MIXER_TRACK))

#define GST_TYPE_ALSA_MIXER_TRACK               (gst_alsa_mixer_track_get_type())

typedef struct _GstAlsaMixerTrack GstAlsaMixerTrack;

typedef struct _GstAlsaMixerTrackClass GstAlsaMixerTrackClass;

#define GST_ALSA_MIXER_TRACK_VOLUME         (1<<0)           /* common volume */

#define GST_ALSA_MIXER_TRACK_PVOLUME        (1<<1)

#define GST_ALSA_MIXER_TRACK_CVOLUME        (1<<2)

#define GST_ALSA_MIXER_TRACK_SWITCH         (1<<3)           /* common switch */

#define GST_ALSA_MIXER_TRACK_PSWITCH        (1<<4)

#define GST_ALSA_MIXER_TRACK_CSWITCH        (1<<5)

#define GST_ALSA_MIXER_TRACK_CSWITCH_EXCL   (1<<6)

#define GST_ALSA_MAX_CHANNELS   (SND_MIXER_SCHN_LAST+1)

struct _GstAlsaMixerTrack {

  GstMixerTrack          parent;

  snd_mixer_elem_t      *element;    /* the ALSA mixer element for this track */

  GstAlsaMixerTrack     *shared_mute;  

  gint                  track_num;

  guint32               alsa_flags;                /* alsa track capabilities */

  gint                  alsa_channels;  

  gint                  capture_group;  

  gint                  volumes[GST_ALSA_MAX_CHANNELS];

};

struct _GstAlsaMixerTrackClass {

  GstMixerTrackClass parent;

};

GType           gst_alsa_mixer_track_get_type   (void);

GstMixerTrack * gst_alsa_mixer_track_new        (snd_mixer_elem_t *     element,

                                                 gint                   num,

                                                 gint                   track_num,

                                                 gint                   flags,

                                                 gboolean               sw,  /* is simple switch? */

                                                 GstAlsaMixerTrack *    shared_mute_track,

                                                 gboolean               label_append_capture);

void            gst_alsa_mixer_track_update      (GstAlsaMixerTrack * alsa_track);

G_END_DECLS

#endif /* __GST_ALSA_MIXER_TRACK_H__ */