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143 lines
8.9 KiB
C
143 lines
8.9 KiB
C
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/* SunAudio mixer interface element.
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* Copyright (C) 2005 Brian Cameron <brian.cameron@sun.com>
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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_SUNAUDIO_MIXER_CTRL_H
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#define __GST_SUNAUDIO_MIXER_CTRL_H
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#include <sys/audioio.h>
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#include <gst/gst.h>
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#include <gst/interfaces/mixer.h>
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G_BEGIN_DECLS
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#define GST_SUNAUDIO_MIXER_CTRL(obj) ((GstSunAudioMixerCtrl*)(obj))
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typedef struct _GstSunAudioMixerCtrl GstSunAudioMixerCtrl;
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struct _GstSunAudioMixerCtrl {
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GList * tracklist; /* list of available tracks */
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gint fd;
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gint mixer_fd;
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gchar * device;
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};
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GstSunAudioMixerCtrl* gst_sunaudiomixer_ctrl_new (const gchar *device);
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void gst_sunaudiomixer_ctrl_free (GstSunAudioMixerCtrl *mixer);
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const GList* gst_sunaudiomixer_ctrl_list_tracks (GstSunAudioMixerCtrl * mixer);
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void gst_sunaudiomixer_ctrl_set_volume (GstSunAudioMixerCtrl * mixer,
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GstMixerTrack * track,
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gint * volumes);
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void gst_sunaudiomixer_ctrl_get_volume (GstSunAudioMixerCtrl * mixer,
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GstMixerTrack * track,
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gint * volumes);
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void gst_sunaudiomixer_ctrl_set_record (GstSunAudioMixerCtrl * mixer,
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GstMixerTrack * track,
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gboolean record);
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void gst_sunaudiomixer_ctrl_set_mute (GstSunAudioMixerCtrl * mixer,
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GstMixerTrack * track,
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gboolean mute);
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#define GST_IMPLEMENT_SUNAUDIO_MIXER_CTRL_METHODS(Type, interface_as_function) \
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static gboolean \
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interface_as_function ## _supported (Type *this, GType iface_type) \
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{ \
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g_assert (iface_type == GST_TYPE_MIXER); \
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\
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return (this->mixer != NULL); \
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} \
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\
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static const GList* \
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interface_as_function ## _list_tracks (GstMixer * mixer) \
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{ \
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Type *this = (Type*) mixer; \
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\
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g_return_val_if_fail (this != NULL, NULL); \
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g_return_val_if_fail (this->mixer != NULL, NULL); \
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\
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return gst_sunaudiomixer_ctrl_list_tracks (this->mixer); \
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} \
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\
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static void \
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interface_as_function ## _set_volume (GstMixer * mixer, GstMixerTrack * track, \
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gint * volumes) \
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{ \
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Type *this = (Type*) mixer; \
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\
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g_return_if_fail (this != NULL); \
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g_return_if_fail (this->mixer != NULL); \
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\
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gst_sunaudiomixer_ctrl_set_volume (this->mixer, track, volumes); \
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} \
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\
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static void \
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interface_as_function ## _get_volume (GstMixer * mixer, GstMixerTrack * track, \
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gint * volumes) \
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{ \
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Type *this = (Type*) mixer; \
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\
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g_return_if_fail (this != NULL); \
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g_return_if_fail (this->mixer != NULL); \
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\
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gst_sunaudiomixer_ctrl_get_volume (this->mixer, track, volumes); \
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} \
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\
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static void \
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interface_as_function ## _set_record (GstMixer * mixer, GstMixerTrack * track, \
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gboolean record) \
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{ \
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Type *this = (Type*) mixer; \
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\
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g_return_if_fail (this != NULL); \
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g_return_if_fail (this->mixer != NULL); \
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\
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gst_sunaudiomixer_ctrl_set_record (this->mixer, track, record); \
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} \
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\
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static void \
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interface_as_function ## _set_mute (GstMixer * mixer, GstMixerTrack * track, \
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gboolean mute) \
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{ \
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Type *this = (Type*) mixer; \
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\
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g_return_if_fail (this != NULL); \
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g_return_if_fail (this->mixer != NULL); \
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\
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gst_sunaudiomixer_ctrl_set_mute (this->mixer, track, mute); \
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} \
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\
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static void \
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interface_as_function ## _interface_init (GstMixerClass * klass) \
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{ \
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GST_MIXER_TYPE (klass) = GST_MIXER_HARDWARE; \
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\
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/* set up the interface hooks */ \
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klass->list_tracks = interface_as_function ## _list_tracks; \
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klass->set_volume = interface_as_function ## _set_volume; \
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klass->get_volume = interface_as_function ## _get_volume; \
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klass->set_mute = interface_as_function ## _set_mute; \
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klass->set_record = interface_as_function ## _set_record; \
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}
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G_END_DECLS
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#endif
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