/* GStreamer Mixer * Copyright (C) 2003 Ronald Bultje <rbultje@ronald.bitfreak.net> * * mixertrack.h: mixer track object * * 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., 59 Temple Place - Suite 330, * Boston, MA 02111-1307, USA. */ #ifndef __GST_MIXER_TRACK_H__ #define __GST_MIXER_TRACK_H__ #include <gst/gst.h> G_BEGIN_DECLS #define GST_TYPE_MIXER_TRACK \ (gst_mixer_track_get_type ()) #define GST_MIXER_TRACK(obj) \ (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_MIXER_TRACK, \ GstMixerTrack)) #define GST_MIXER_TRACK_CLASS(klass) \ (G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_MIXER_TRACK, \ GstMixerTrackClass)) #define GST_IS_MIXER_TRACK(obj) \ (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_MIXER_TRACK)) #define GST_IS_MIXER_TRACK_CLASS(klass) \ (G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_MIXER_TRACK)) /* * Naming: * * A track is a single input/output stream (e.g. line-in, * microphone, etc.). Channels are then single streams * within a track. A mono stream has one channel, a stereo * stream has two, etc. * * Input tracks can have 'recording' enabled, which means * that any input will be hearable into the speakers that * are attached to the output. Mute is obvious. A track * flagged as master is the master volume track on this * mixer, which means that setting this track will change * the hearable volume on any output. */ typedef enum { GST_MIXER_TRACK_INPUT = (1<<0), GST_MIXER_TRACK_OUTPUT = (1<<1), GST_MIXER_TRACK_MUTE = (1<<2), GST_MIXER_TRACK_RECORD = (1<<3), GST_MIXER_TRACK_MASTER = (1<<4), GST_MIXER_TRACK_SOFTWARE = (1<<5) } GstMixerTrackFlags; #define GST_MIXER_TRACK_HAS_FLAG(channel, flag) \ ((channel)->flags & flag) typedef struct _GstMixerTrack { GObject parent; gchar *label; GstMixerTrackFlags flags; gint num_channels, min_volume, max_volume; } GstMixerTrack; typedef struct _GstMixerTrackClass { GObjectClass parent; /* signals */ void (* mute_toggled) (GstMixerTrack *channel, gboolean mute); void (* record_toggled) (GstMixerTrack *channel, gboolean record); void (* volume_changed) (GstMixerTrack *channel, gint *volumes); gpointer _gst_reserved[GST_PADDING]; } GstMixerTrackClass; GType gst_mixer_track_get_type (void); G_END_DECLS #endif /* __GST_MIXER_TRACK_H__ */