gstreamer/sys/sunaudio/gstsunaudiomixerctrl.h

143 lines
8.9 KiB
C
Raw Normal View History

/* SunAudio mixer interface element.
* Copyright (C) 2005 Brian Cameron <brian.cameron@sun.com>
*
* 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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef __GST_SUNAUDIO_MIXER_CTRL_H
#define __GST_SUNAUDIO_MIXER_CTRL_H
#include <sys/audioio.h>
#include <gst/gst.h>
#include <gst/interfaces/mixer.h>
G_BEGIN_DECLS
#define GST_SUNAUDIO_MIXER_CTRL(obj) ((GstSunAudioMixerCtrl*)(obj))
typedef struct _GstSunAudioMixerCtrl GstSunAudioMixerCtrl;
struct _GstSunAudioMixerCtrl {
GList * tracklist; /* list of available tracks */
gint fd;
gint mixer_fd;
gchar * device;
};
GstSunAudioMixerCtrl* gst_sunaudiomixer_ctrl_new (const gchar *device);
void gst_sunaudiomixer_ctrl_free (GstSunAudioMixerCtrl *mixer);
const GList* gst_sunaudiomixer_ctrl_list_tracks (GstSunAudioMixerCtrl * mixer);
void gst_sunaudiomixer_ctrl_set_volume (GstSunAudioMixerCtrl * mixer,
GstMixerTrack * track,
gint * volumes);
void gst_sunaudiomixer_ctrl_get_volume (GstSunAudioMixerCtrl * mixer,
GstMixerTrack * track,
gint * volumes);
void gst_sunaudiomixer_ctrl_set_record (GstSunAudioMixerCtrl * mixer,
GstMixerTrack * track,
gboolean record);
void gst_sunaudiomixer_ctrl_set_mute (GstSunAudioMixerCtrl * mixer,
GstMixerTrack * track,
gboolean mute);
#define GST_IMPLEMENT_SUNAUDIO_MIXER_CTRL_METHODS(Type, interface_as_function) \
static gboolean \
interface_as_function ## _supported (Type *this, GType iface_type) \
{ \
g_assert (iface_type == GST_TYPE_MIXER); \
\
return (this->mixer != NULL); \
} \
\
static const GList* \
interface_as_function ## _list_tracks (GstMixer * mixer) \
{ \
Type *this = (Type*) mixer; \
\
g_return_val_if_fail (this != NULL, NULL); \
g_return_val_if_fail (this->mixer != NULL, NULL); \
\
return gst_sunaudiomixer_ctrl_list_tracks (this->mixer); \
} \
\
static void \
interface_as_function ## _set_volume (GstMixer * mixer, GstMixerTrack * track, \
gint * volumes) \
{ \
Type *this = (Type*) mixer; \
\
g_return_if_fail (this != NULL); \
g_return_if_fail (this->mixer != NULL); \
\
gst_sunaudiomixer_ctrl_set_volume (this->mixer, track, volumes); \
} \
\
static void \
interface_as_function ## _get_volume (GstMixer * mixer, GstMixerTrack * track, \
gint * volumes) \
{ \
Type *this = (Type*) mixer; \
\
g_return_if_fail (this != NULL); \
g_return_if_fail (this->mixer != NULL); \
\
gst_sunaudiomixer_ctrl_get_volume (this->mixer, track, volumes); \
} \
\
static void \
interface_as_function ## _set_record (GstMixer * mixer, GstMixerTrack * track, \
gboolean record) \
{ \
Type *this = (Type*) mixer; \
\
g_return_if_fail (this != NULL); \
g_return_if_fail (this->mixer != NULL); \
\
gst_sunaudiomixer_ctrl_set_record (this->mixer, track, record); \
} \
\
static void \
interface_as_function ## _set_mute (GstMixer * mixer, GstMixerTrack * track, \
gboolean mute) \
{ \
Type *this = (Type*) mixer; \
\
g_return_if_fail (this != NULL); \
g_return_if_fail (this->mixer != NULL); \
\
gst_sunaudiomixer_ctrl_set_mute (this->mixer, track, mute); \
} \
\
static void \
interface_as_function ## _interface_init (GstMixerClass * klass) \
{ \
GST_MIXER_TYPE (klass) = GST_MIXER_HARDWARE; \
\
/* set up the interface hooks */ \
klass->list_tracks = interface_as_function ## _list_tracks; \
klass->set_volume = interface_as_function ## _set_volume; \
klass->get_volume = interface_as_function ## _get_volume; \
klass->set_mute = interface_as_function ## _set_mute; \
klass->set_record = interface_as_function ## _set_record; \
}
G_END_DECLS
#endif