/usr/include/gstreamer-0.10/gst/interfaces/mixer.h is in libgstreamer-plugins-base0.10-dev 0.10.36-1ubuntu0.2.
This file is owned by root:root, with mode 0o644.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 | /* 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/interfaces/mixeroptions.h>
#include <gst/interfaces/mixertrack.h>
#include <gst/interfaces/interfaces-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;
/**
* GstMixerType:
* @GST_MIXER_HARDWARE: mixing is implemented with dedicated hardware.
* @GST_MIXER_SOFTWARE: mixing is implemented via software processing.
*
* Mixer classification.
*/
typedef enum
{
GST_MIXER_HARDWARE,
GST_MIXER_SOFTWARE
} GstMixerType;
/**
* GstMixerMessageType:
* @GST_MIXER_MESSAGE_INVALID: Not a GstMixer message
* @GST_MIXER_MESSAGE_MUTE_TOGGLED: A mute-toggled GstMixer message
* @GST_MIXER_MESSAGE_RECORD_TOGGLED: A record-toggled GstMixer message
* @GST_MIXER_MESSAGE_VOLUME_CHANGED: A volume-changed GstMixer message
* @GST_MIXER_MESSAGE_OPTION_CHANGED: An option-changed GstMixer message
* @GST_MIXER_MESSAGE_OPTIONS_LIST_CHANGED: An options-list-changed
* GstMixer message, posted when the list of available options for a
* GstMixerOptions object has changed (Since: 0.10.18)
* @GST_MIXER_MESSAGE_MIXER_CHANGED: A mixer-changed GstMixer message, posted
* when the list of available mixer tracks has changed. The application
* should re-build its interface in this case (Since: 0.10.18)
*
* An enumeration for the type of a GstMixer message received on the bus
*
* Since: 0.10.14
*/
typedef enum
{
GST_MIXER_MESSAGE_INVALID,
GST_MIXER_MESSAGE_MUTE_TOGGLED,
GST_MIXER_MESSAGE_RECORD_TOGGLED,
GST_MIXER_MESSAGE_VOLUME_CHANGED,
GST_MIXER_MESSAGE_OPTION_CHANGED,
GST_MIXER_MESSAGE_OPTIONS_LIST_CHANGED,
GST_MIXER_MESSAGE_MIXER_CHANGED
} GstMixerMessageType;
/**
* GstMixerFlags:
* @GST_MIXER_FLAG_NONE: No flags
* @GST_MIXER_FLAG_AUTO_NOTIFICATIONS: The mixer implementation automatically
* sends notification messages.
* @GST_MIXER_FLAG_HAS_WHITELIST: The mixer implementation flags tracks that
* should be displayed by default (whitelisted). Since: 0.10.23
* @GST_MIXER_FLAG_GROUPING: The mixer implementation will leave some controls
* marked without either input or output. Controls marked as input or
* output should be grouped with input & output sliders, even if they
* are options or bare switches. Since: 0.10.23
*
* Flags indicating which optional features are supported by a mixer
* implementation.
*
* Since: 0.10.14
*/
typedef enum
{
GST_MIXER_FLAG_NONE = 0,
GST_MIXER_FLAG_AUTO_NOTIFICATIONS = (1<<0),
GST_MIXER_FLAG_HAS_WHITELIST = (1<<1),
GST_MIXER_FLAG_GROUPING = (1<<2),
} GstMixerFlags;
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);
#ifndef GST_DISABLE_DEPRECATED
/* signals (deprecated) */
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);
#else
gpointer padding1[3];
#endif /* not GST_DISABLE_DEPRECATED */
void (* set_option) (GstMixer *mixer,
GstMixerOptions *opts,
gchar *value);
const gchar * (* get_option) (GstMixer *mixer,
GstMixerOptions *opts);
#ifndef GST_DISABLE_DEPRECATED
void (* option_changed) (GstMixer *mixer,
GstMixerOptions *opts,
gchar *option);
#else
gpointer padding2;
#endif /* not GST_DISABLE_DEPRECATED */
GstMixerFlags (* get_mixer_flags) (GstMixer *mixer);
/*< private >*/
gpointer _gst_reserved[GST_PADDING-1];
};
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 bus messages */
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,
const gchar *value);
void gst_mixer_mixer_changed (GstMixer *mixer);
void gst_mixer_options_list_changed (GstMixer *mixer,
GstMixerOptions *opts);
GstMixerType gst_mixer_get_mixer_type (GstMixer *mixer);
GstMixerFlags gst_mixer_get_mixer_flags (GstMixer *mixer);
/* Functions for recognising and parsing GstMixerMessages on the bus */
GstMixerMessageType gst_mixer_message_get_type (GstMessage *message);
void gst_mixer_message_parse_mute_toggled (GstMessage *message,
GstMixerTrack **track,
gboolean *mute);
void gst_mixer_message_parse_record_toggled (GstMessage *message,
GstMixerTrack **track,
gboolean *record);
void gst_mixer_message_parse_volume_changed (GstMessage *message,
GstMixerTrack **track,
gint **volumes,
gint *num_channels);
void gst_mixer_message_parse_option_changed (GstMessage *message,
GstMixerOptions **options,
const gchar **value);
void gst_mixer_message_parse_options_list_changed (GstMessage *message,
GstMixerOptions **options);
G_END_DECLS
#endif /* __GST_MIXER_H__ */
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