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39b91cdb49
Original commit message from CVS: Make GstMixerTrack a GObject. I also want to make it emit several signals, starting work is in here but it's not fully implemented yet. for OSS, this will cause issues, but for ALSA, this is all automated.
86 lines
2.5 KiB
C
86 lines
2.5 KiB
C
/* GStreamer Mixer
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* Copyright (C) 2003 Ronald Bultje <rbultje@ronald.bitfreak.net>
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*
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* mixertrack.h: mixer track object
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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
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#ifndef __GST_MIXER_TRACK_H__
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#define __GST_MIXER_TRACK_H__
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#include <gst/gst.h>
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G_BEGIN_DECLS
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#define GST_TYPE_MIXER_TRACK \
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(gst_mixer_track_get_type ())
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#define GST_MIXER_TRACK(obj) \
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(G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_MIXER_TRACK, \
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GstMixerTrack))
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#define GST_MIXER_TRACK_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_MIXER_TRACK, \
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GstMixerTrackClass))
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#define GST_IS_MIXER_TRACK(obj) \
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(G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_MIXER_TRACK))
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#define GST_IS_MIXER_TRACK_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_MIXER_TRACK))
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/*
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* Naming:
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*
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* A track is a single input/output stream (e.g. line-in,
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* microphone, etc.). Channels are then single streams
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* within a track. A mono stream has one channel, a stereo
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* stream has two, etc.
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*/
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typedef enum {
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GST_MIXER_TRACK_INPUT = (1<<0),
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GST_MIXER_TRACK_OUTPUT = (1<<1),
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GST_MIXER_TRACK_MUTE = (1<<2),
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GST_MIXER_TRACK_RECORD = (1<<3),
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} GstMixerTrackFlags;
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#define GST_MIXER_TRACK_HAS_FLAG(channel, flag) \
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((channel)->flags & flag)
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typedef struct _GstMixerTrack {
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GObject parent;
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gchar *label;
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GstMixerTrackFlags flags;
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gint num_channels,
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min_volume,
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max_volume;
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} GstMixerTrack;
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typedef struct _GstMixerTrackClass {
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GObjectClass parent;
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void (* mute_toggled) (GstMixerTrack *channel,
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gboolean on);
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void (* record_toggled) (GstMixerTrack *channel,
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gboolean on);
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void (* volume_changed) (GstMixerTrack *channel,
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gint *volumes);
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} GstMixerTrackClass;
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GType gst_mixer_track_get_type (void);
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G_END_DECLS
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#endif /* __GST_MIXER_TRACK_H__ */
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