mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-12-22 16:26:39 +00:00
79 lines
3.4 KiB
C
79 lines
3.4 KiB
C
/* 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/audio/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__ */
|