/* GStreamer Mixer * Copyright (C) 2003 Ronald Bultje <rbultje@ronald.bitfreak.net> * * mixer.h: mixer interface design * * 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_H__ #define __GST_MIXER_H__ #include <gst/gst.h> #include <gst/mixer/mixeroptions.h> #include <gst/mixer/mixertrack.h> #include <gst/mixer/mixer-enumtypes.h> G_BEGIN_DECLS #define GST_TYPE_MIXER \ (gst_mixer_get_type ()) #define GST_MIXER(obj) \ (GST_IMPLEMENTS_INTERFACE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_MIXER, GstMixer)) #define GST_MIXER_CLASS(klass) \ (G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_MIXER, GstMixerClass)) #define GST_IS_MIXER(obj) \ (GST_IMPLEMENTS_INTERFACE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_MIXER)) #define GST_IS_MIXER_CLASS(klass) \ (G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_MIXER)) #define GST_MIXER_GET_CLASS(inst) \ (G_TYPE_INSTANCE_GET_INTERFACE ((inst), GST_TYPE_MIXER, GstMixerClass)) #define GST_MIXER_TYPE(klass) (klass->mixer_type) typedef struct _GstMixer GstMixer; typedef struct _GstMixerClass GstMixerClass; typedef enum { GST_MIXER_HARDWARE, GST_MIXER_SOFTWARE } GstMixerType; struct _GstMixerClass { GTypeInterface klass; GstMixerType mixer_type; /* virtual functions */ const GList * (* list_tracks) (GstMixer *mixer); void (* set_volume) (GstMixer *mixer, GstMixerTrack *track, gint *volumes); void (* get_volume) (GstMixer *mixer, GstMixerTrack *track, gint *volumes); void (* set_mute) (GstMixer *mixer, GstMixerTrack *track, gboolean mute); void (* set_record) (GstMixer *mixer, GstMixerTrack *track, gboolean record); /* signals */ void (* mute_toggled) (GstMixer *mixer, GstMixerTrack *channel, gboolean mute); void (* record_toggled) (GstMixer *mixer, GstMixerTrack *channel, gboolean record); void (* volume_changed) (GstMixer *mixer, GstMixerTrack *channel, gint *volumes); /* use padding */ void (* set_option) (GstMixer *mixer, GstMixerOptions *opts, gchar *value); const gchar * (* get_option) (GstMixer *mixer, GstMixerOptions *opts); void (* option_changed) (GstMixer *mixer, GstMixerOptions *opts, gchar *option); gpointer _gst_reserved[GST_PADDING-3]; }; GType gst_mixer_get_type (void); /* virtual class function wrappers */ const GList * gst_mixer_list_tracks (GstMixer *mixer); void gst_mixer_set_volume (GstMixer *mixer, GstMixerTrack *track, gint *volumes); void gst_mixer_get_volume (GstMixer *mixer, GstMixerTrack *track, gint *volumes); void gst_mixer_set_mute (GstMixer *mixer, GstMixerTrack *track, gboolean mute); void gst_mixer_set_record (GstMixer *mixer, GstMixerTrack *track, gboolean record); void gst_mixer_set_option (GstMixer *mixer, GstMixerOptions *opts, gchar *value); const gchar * gst_mixer_get_option (GstMixer *mixer, GstMixerOptions *opts); /* trigger signals */ void gst_mixer_mute_toggled (GstMixer *mixer, GstMixerTrack *track, gboolean mute); void gst_mixer_record_toggled (GstMixer *mixer, GstMixerTrack *track, gboolean record); void gst_mixer_volume_changed (GstMixer *mixer, GstMixerTrack *track, gint *volumes); void gst_mixer_option_changed (GstMixer *mixer, GstMixerOptions *opts, gchar *value); G_END_DECLS #endif /* __GST_MIXER_H__ */