| /* GStreamer OSS Mixer implementation |
| * Copyright (C) 2003 Ronald Bultje <rbultje@ronald.bitfreak.net> |
| * |
| * gstossmixer.h: mixer interface implementation for OSS |
| * |
| * 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_OSS_MIXER_H__ |
| #define __GST_OSS_MIXER_H__ |
| |
| |
| #include <gst/gst.h> |
| #include <gst/interfaces/mixer.h> |
| |
| #include "gstosshelper.h" |
| |
| |
| G_BEGIN_DECLS |
| |
| |
| #define GST_OSS_MIXER(obj) ((GstOssMixer*)(obj)) |
| |
| |
| typedef enum { |
| GST_OSS_MIXER_CAPTURE = 1<<0, |
| GST_OSS_MIXER_PLAYBACK = 1<<1, |
| GST_OSS_MIXER_ALL = GST_OSS_MIXER_CAPTURE | GST_OSS_MIXER_PLAYBACK |
| } GstOssMixerDirection; |
| |
| |
| typedef struct _GstOssMixer GstOssMixer; |
| |
| |
| struct _GstOssMixer { |
| GList * tracklist; /* list of available tracks */ |
| |
| gint mixer_fd; |
| |
| gchar * device; |
| gchar * cardname; |
| |
| gint recmask; |
| gint recdevs; |
| gint stereomask; |
| gint devmask; |
| gint mixcaps; |
| |
| GstOssMixerDirection dir; |
| }; |
| |
| |
| GstOssMixer* gst_ossmixer_new (const gchar *device, |
| GstOssMixerDirection dir); |
| void gst_ossmixer_free (GstOssMixer *mixer); |
| |
| const GList* gst_ossmixer_list_tracks (GstOssMixer * mixer); |
| void gst_ossmixer_set_volume (GstOssMixer * mixer, |
| GstMixerTrack * track, |
| gint * volumes); |
| void gst_ossmixer_get_volume (GstOssMixer * mixer, |
| GstMixerTrack * track, |
| gint * volumes); |
| void gst_ossmixer_set_record (GstOssMixer * mixer, |
| GstMixerTrack * track, |
| gboolean record); |
| void gst_ossmixer_set_mute (GstOssMixer * mixer, |
| GstMixerTrack * track, |
| gboolean mute); |
| |
| |
| #define GST_IMPLEMENT_OSS_MIXER_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_ossmixer_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_ossmixer_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_ossmixer_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_ossmixer_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_ossmixer_set_mute (this->mixer, track, mute); \ |
| } \ |
| \ |
| static void \ |
| interface_as_function ## _interface_init (GstMixerInterface * iface) \ |
| { \ |
| GST_MIXER_TYPE (iface) = GST_MIXER_HARDWARE; \ |
| \ |
| /* set up the interface hooks */ \ |
| iface->list_tracks = interface_as_function ## _list_tracks; \ |
| iface->set_volume = interface_as_function ## _set_volume; \ |
| iface->get_volume = interface_as_function ## _get_volume; \ |
| iface->set_mute = interface_as_function ## _set_mute; \ |
| iface->set_record = interface_as_function ## _set_record; \ |
| } |
| |
| |
| G_END_DECLS |
| |
| |
| #endif /* __GST_OSS_MIXER_H__ */ |
