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69 lines
2.8 KiB
C
69 lines
2.8 KiB
C
/* ALSA mixer track object.
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* Copyright (C) 2003 Leif Johnson <leif@ambient.2y.net>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the Free
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* Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#ifndef __GST_ALSA_MIXER_TRACK_H__
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#define __GST_ALSA_MIXER_TRACK_H__
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#include "gstalsa.h"
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#include <gst/interfaces/mixertrack.h>
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G_BEGIN_DECLS
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#define GST_ALSA_MIXER_TRACK_TYPE (gst_alsa_mixer_track_get_type ())
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#define GST_ALSA_MIXER_TRACK(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_ALSA_MIXER_TRACK,GstAlsaMixerTrack))
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#define GST_ALSA_MIXER_TRACK_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_ALSA_MIXER_TRACK,GstAlsaMixerTrackClass))
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#define GST_IS_ALSA_MIXER_TRACK(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_ALSA_MIXER_TRACK))
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#define GST_IS_ALSA_MIXER_TRACK_CLASS(obj) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_ALSA_MIXER_TRACK))
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#define GST_TYPE_ALSA_MIXER_TRACK (gst_alsa_mixer_track_get_type())
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typedef struct _GstAlsaMixerTrack GstAlsaMixerTrack;
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typedef struct _GstAlsaMixerTrackClass GstAlsaMixerTrackClass;
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#define GST_ALSA_MIXER_TRACK_CAPTURE (1<<0)
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#define GST_ALSA_MIXER_TRACK_PLAYBACK (1<<1)
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#define GST_ALSA_MAX_CHANNELS 32 /* tracks can have up to 32 channels */
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struct _GstAlsaMixerTrack {
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GstMixerTrack parent;
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snd_mixer_elem_t *element; /* the ALSA mixer element for this track */
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gint track_num;
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gint alsa_flags;
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gint volumes[GST_ALSA_MAX_CHANNELS];
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};
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struct _GstAlsaMixerTrackClass {
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GstMixerTrackClass parent;
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};
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GType gst_alsa_mixer_track_get_type (void);
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GstMixerTrack * gst_alsa_mixer_track_new (snd_mixer_elem_t * element,
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gint num,
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gint track_num,
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gint channels,
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gint flags,
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gint alsa_flags);
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G_END_DECLS
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#endif /* __GST_ALSA_MIXER_TRACK_H__ */
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