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Diffstat (limited to 'sys/oss/gstossmixer.h')
| -rw-r--r-- | sys/oss/gstossmixer.h | 171 |
1 files changed, 171 insertions, 0 deletions
diff --git a/sys/oss/gstossmixer.h b/sys/oss/gstossmixer.h new file mode 100644 index 0000000..d2e06fe --- /dev/null +++ b/sys/oss/gstossmixer.h @@ -0,0 +1,171 @@ +/* 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 (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 /* __GST_OSS_MIXER_H__ */ |