GNUnet  0.10.x
gnunet_speaker_lib.h
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1 /*
2  This file is part of GNUnet
3  Copyright (C) 2013 GNUnet e.V.
4 
5  GNUnet is free software: you can redistribute it and/or modify it
6  under the terms of the GNU Affero General Public License as published
7  by the Free Software Foundation, either version 3 of the License,
8  or (at your option) any later version.
9 
10  GNUnet is distributed in the hope that it will be useful, but
11  WITHOUT ANY WARRANTY; without even the implied warranty of
12  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13  Affero General Public License for more details.
14 
15  You should have received a copy of the GNU Affero General Public License
16  along with this program. If not, see <http://www.gnu.org/licenses/>.
17 
18  SPDX-License-Identifier: AGPL3.0-or-later
19  */
20 
33 #ifndef GNUNET_SPEAKER_SERVICE_H
34 #define GNUNET_SPEAKER_SERVICE_H
35 
36 #ifdef __cplusplus
37 extern "C"
38 {
39 #if 0 /* keep Emacsens' auto-indent happy */
40 }
41 #endif
42 #endif
43 
44 #include "gnunet_util_lib.h"
45 
52 typedef int (*GNUNET_SPEAKER_EnableCallback)(void *cls);
53 
59 typedef void (*GNUNET_SPEAKER_DisableCallback)(void *cls);
60 
66 typedef void (*GNUNET_SPEAKER_DestroyCallback)(void *cls);
67 
76 typedef void (*GNUNET_SPEAKER_PlayCallback)(void *cls,
77  size_t data_size,
78  const void *data);
79 
80 
85 {
86 
91 
96 
101 
106 
110  void *cls;
111 
112 };
113 
114 
122 struct GNUNET_SPEAKER_Handle *
124 
125 
131 void
133 
134 
135 #if 0 /* keep Emacsens' auto-indent happy */
136 {
137 #endif
138 #ifdef __cplusplus
139 }
140 #endif
141 
142 #endif
143  /* end of group */
145 
146 /* end of gnunet_speaker_lib.h */
void(* GNUNET_SPEAKER_DestroyCallback)(void *cls)
Function to destroy a speaker.
struct GNUNET_SPEAKER_Handle * GNUNET_SPEAKER_create_from_hardware(const struct GNUNET_CONFIGURATION_Handle *cfg)
Create a speaker that corresponds to the speaker hardware of our system.
Definition: speaker.c:160
GNUNET_SPEAKER_PlayCallback play
Play audio.
GNUNET_SPEAKER_DisableCallback disable_speaker
Turn the speaker off.
void(* GNUNET_SPEAKER_PlayCallback)(void *cls, size_t data_size, const void *data)
Function to cause a speaker to play audio data.
GNUNET_SPEAKER_EnableCallback enable_speaker
Turn on the speaker.
static struct GNUNET_CONFIGURATION_Handle * cfg
Our configuration.
Definition: gnunet-arm.c:104
void * cls
Closure for the callbacks.
void GNUNET_SPEAKER_destroy(struct GNUNET_SPEAKER_Handle *speaker)
Destroy a speaker.
Definition: speaker.c:183
configuration data
Definition: configuration.c:85
void(* GNUNET_SPEAKER_DisableCallback)(void *cls)
Function that disables a speaker.
uint32_t data
The data value.
static size_t data_size
Number of bytes in data.
int(* GNUNET_SPEAKER_EnableCallback)(void *cls)
Function that enables a speaker.
A speaker is a device that can play or record audio data.
static struct GNUNET_SPEAKER_Handle * speaker
Handle to the speaker.
GNUNET_SPEAKER_DestroyCallback destroy_speaker
Destroy the speaker.