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/* 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__ */
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