GNUnet  0.10.x
gnunet-conversation-test.c
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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 
26 #include "platform.h"
27 #include "gnunet_util_lib.h"
28 #include "gnunet_speaker_lib.h"
29 #include "gnunet_microphone_lib.h"
30 
34 #define TIMEOUT GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, 5)
35 
36 
40 struct Recording {
44  struct Recording *next;
45 
49  struct Recording *prev;
50 
54  size_t size;
55 };
56 
57 
61 static int ret;
62 
67 
72 
77 
81 static struct GNUNET_SCHEDULER_Task * st;
82 
86 static struct Recording *rec_head;
87 
91 static struct Recording *rec_tail;
92 
93 
99 static void
100 do_shutdown(void *cls)
101 {
102  struct Recording *rec;
103 
104  (void)cls;
105  if (NULL != switch_task)
106  GNUNET_SCHEDULER_cancel(switch_task);
107  if (NULL != microphone)
108  GNUNET_MICROPHONE_destroy(microphone);
109  if (NULL != speaker)
110  GNUNET_SPEAKER_destroy(speaker);
111  while (NULL != (rec = rec_head))
112  {
114  rec_tail,
115  rec);
116  GNUNET_free(rec);
117  }
118  fprintf(stderr,
119  _("\nEnd of transmission. Have a GNU day.\n"));
120 }
121 
122 
128 static void
130 {
131  (void)cls;
132  switch_task = NULL;
133  microphone->disable_microphone(microphone->cls);
134  if (GNUNET_OK !=
135  speaker->enable_speaker(speaker->cls))
136  {
137  fprintf(stderr,
138  "Failed to enable microphone\n");
139  ret = 1;
141  return;
142  }
143  fprintf(stderr,
144  _("\nWe are now playing your recording back. If you can hear it, your audio settings are working..."));
145  for (struct Recording *rec = rec_head; NULL != rec; rec = rec->next)
146  {
148  "Replaying %u bytes\n",
149  (unsigned int)rec->size);
150  speaker->play(speaker->cls,
151  rec->size,
152  &rec[1]);
153  }
156  &do_shutdown,
157  NULL);
158 }
159 
160 
168 static void
169 record(void *cls,
170  size_t data_size,
171  const void *data)
172 {
173  struct Recording *rec;
174 
175  (void)cls;
177  "Recorded %u bytes\n",
178  (unsigned int)data_size);
179  rec = GNUNET_malloc(sizeof(struct Recording) + data_size);
180  rec->size = data_size;
181  GNUNET_memcpy(&rec[1], data, data_size);
183  rec_tail,
184  rec);
185 }
186 
187 
196 static void
197 run(void *cls,
198  char *const *args,
199  const char *cfgfile,
200  const struct GNUNET_CONFIGURATION_Handle *cfg)
201 {
202  (void)cls;
203  (void)args;
204  (void)cfgfile;
205  microphone = GNUNET_MICROPHONE_create_from_hardware(cfg);
206  GNUNET_assert(NULL != microphone);
208  GNUNET_assert(NULL != speaker);
211  NULL);
213  NULL);
214  fprintf(stderr,
215  _("We will now be recording you for %s. After that time, the recording will be played back to you..."),
217  if (GNUNET_OK !=
218  microphone->enable_microphone(microphone->cls,
219  &record, NULL))
220  {
221  fprintf(stderr,
222  "Failed to enable microphone\n");
223  ret = 1;
225  return;
226  }
227 }
228 
229 
237 int
238 main(int argc,
239  char *const *argv)
240 {
241  static const struct GNUNET_GETOPT_CommandLineOption options[] = {
243  };
244 
245  if (GNUNET_OK !=
246  GNUNET_STRINGS_get_utf8_args(argc, argv,
247  &argc, &argv))
248  return 2;
249 
250  ret = (GNUNET_OK ==
251  GNUNET_PROGRAM_run(argc, argv,
252  "gnunet-conversation-test",
253  gettext_noop("help text"),
254  options,
255  &run,
256  NULL)) ? ret : 1;
257  GNUNET_free((void*)argv);
258  return ret;
259 }
260 
261 /* end of gnunet-conversation-test.c */
#define GNUNET_CONTAINER_DLL_remove(head, tail, element)
Remove an element from a DLL.
#define TIMEOUT
How long do we record before we replay?
struct GNUNET_SCHEDULER_Task * GNUNET_SCHEDULER_add_shutdown(GNUNET_SCHEDULER_TaskCallback task, void *task_cls)
Schedule a new task to be run on shutdown, that is when a CTRL-C signal is received, or when GNUNET_SCHEDULER_shutdown() is being invoked.
Definition: scheduler.c:1284
GNUNET_MICROPHONE_DisableCallback disable_microphone
Turn the microphone off.
int GNUNET_STRINGS_get_utf8_args(int argc, char *const *argv, int *u8argc, char *const **u8argv)
Returns utf-8 encoded arguments.
Definition: strings.c:1439
#define GNUNET_assert(cond)
Use this for fatal errors that cannot be handled.
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:158
GNUNET_SPEAKER_PlayCallback play
Play audio.
#define GNUNET_memcpy(dst, src, n)
Call memcpy() but check for n being 0 first.
GNUNET_MICROPHONE_EnableCallback enable_microphone
Turn on the microphone.
#define GNUNET_OK
Named constants for return values.
Definition: gnunet_common.h:75
Definition of a command line option.
A recording we made.
void GNUNET_SCHEDULER_shutdown(void)
Request the shutdown of a scheduler.
Definition: scheduler.c:517
struct GNUNET_GETOPT_CommandLineOption GNUNET_GETOPT_OPTION_END
Definition: 002.c:13
#define _(String)
GNU gettext support macro.
Definition: platform.h:181
static int ret
Final status code.
struct GNUNET_SCHEDULER_Task * GNUNET_SCHEDULER_add_delayed(struct GNUNET_TIME_Relative delay, GNUNET_SCHEDULER_TaskCallback task, void *task_cls)
Schedule a new task to be run with a specified delay.
Definition: scheduler.c:1237
void * cls
Closure for the callbacks.
const char * GNUNET_STRINGS_relative_time_to_string(struct GNUNET_TIME_Relative delta, int do_round)
Give relative time in human-readable fancy format.
Definition: strings.c:686
GNUNET_SPEAKER_EnableCallback enable_speaker
Turn on the speaker.
struct Recording * prev
Kept in a DLL.
static struct Recording * rec_tail
Tail of DLL with recorded frames.
static struct GNUNET_CONFIGURATION_Handle * cfg
Our configuration.
Definition: gnunet-arm.c:104
void * cls
Closure for the callbacks.
int main(int argc, char *const *argv)
The main function of our code to test microphone and speaker.
static struct Recording * rec_head
Head of DLL with recorded frames.
static void do_shutdown(void *cls)
Terminate test.
#define GNUNET_CONTAINER_DLL_insert_tail(head, tail, element)
Insert an element at the tail of a DLL.
void GNUNET_SPEAKER_destroy(struct GNUNET_SPEAKER_Handle *speaker)
Destroy a speaker.
Definition: speaker.c:181
static void switch_to_speaker(void *cls)
Terminate recording process and switch to playback.
static void run(void *cls, char *const *args, const char *cfgfile, const struct GNUNET_CONFIGURATION_Handle *cfg)
Main function that will be run by the scheduler.
void GNUNET_MICROPHONE_destroy(struct GNUNET_MICROPHONE_Handle *microphone)
Destroy a microphone.
Definition: microphone.c:192
configuration data
Definition: configuration.c:83
static struct GNUNET_SCHEDULER_Task * switch_task
Task scheduled to switch from recording to playback.
#define GNUNET_log(kind,...)
Entry in list of pending tasks.
Definition: scheduler.c:131
static void record(void *cls, size_t data_size, const void *data)
Process recorded audio data.
size_t size
Number of bytes that follow.
int GNUNET_PROGRAM_run(int argc, char *const *argv, const char *binaryName, const char *binaryHelp, const struct GNUNET_GETOPT_CommandLineOption *options, GNUNET_PROGRAM_Main task, void *task_cls)
Run a standard GNUnet command startup sequence (initialize loggers and configuration, parse options).
Definition: program.c:367
#define GNUNET_YES
Definition: gnunet_common.h:77
A microphone is a device that can capture or otherwise produce audio data.
static struct GNUNET_SCHEDULER_Task * st
The shutdown task.
uint32_t data
The data value.
static size_t data_size
Number of bytes in data.
struct GNUNET_MICROPHONE_Handle * GNUNET_MICROPHONE_create_from_hardware(const struct GNUNET_CONFIGURATION_Handle *cfg)
Create a microphone that corresponds to the microphone hardware of our system.
Definition: microphone.c:170
A speaker is a device that can play or record audio data.
static struct GNUNET_MICROPHONE_Handle * microphone
Handle to the microphone.
#define GNUNET_malloc(size)
Wrapper around malloc.
static struct GNUNET_SPEAKER_Handle * speaker
Handle to the speaker.
#define GNUNET_free(ptr)
Wrapper around free.
struct Recording * next
Kept in a DLL.
#define gettext_noop(String)
Definition: gettext.h:69
void * GNUNET_SCHEDULER_cancel(struct GNUNET_SCHEDULER_Task *task)
Cancel the task with the specified identifier.
Definition: scheduler.c:956