2 This file is part of GNUnet.
3 Copyright (C) 2013 GNUnet e.V.
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.
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.
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/>.
18 SPDX-License-Identifier: AGPL3.0-or-later
22 * @file conversation/gnunet-conversation-test.c
23 * @brief tool to test speaker and microphone (for end users!)
24 * @author Christian Grothoff
27 #include "gnunet_util_lib.h"
28 #include "gnunet_speaker_lib.h"
29 #include "gnunet_microphone_lib.h"
32 * How long do we record before we replay?
34 #define TIMEOUT GNUNET_TIME_relative_multiply(GNUNET_TIME_UNIT_SECONDS, 5)
38 * A recording we made.
44 struct Recording *next;
49 struct Recording *prev;
52 * Number of bytes that follow.
64 * Handle to the microphone.
66 static struct GNUNET_MICROPHONE_Handle *microphone;
69 * Handle to the speaker.
71 static struct GNUNET_SPEAKER_Handle *speaker;
74 * Task scheduled to switch from recording to playback.
76 static struct GNUNET_SCHEDULER_Task * switch_task;
81 static struct GNUNET_SCHEDULER_Task * st;
84 * Head of DLL with recorded frames.
86 static struct Recording *rec_head;
89 * Tail of DLL with recorded frames.
91 static struct Recording *rec_tail;
100 do_shutdown(void *cls)
102 struct Recording *rec;
105 if (NULL != switch_task)
106 GNUNET_SCHEDULER_cancel(switch_task);
107 if (NULL != microphone)
108 GNUNET_MICROPHONE_destroy(microphone);
110 GNUNET_SPEAKER_destroy(speaker);
111 while (NULL != (rec = rec_head))
113 GNUNET_CONTAINER_DLL_remove(rec_head,
119 _("\nEnd of transmission. Have a GNU day.\n"));
124 * Terminate recording process and switch to playback.
129 switch_to_speaker(void *cls)
133 microphone->disable_microphone(microphone->cls);
135 speaker->enable_speaker(speaker->cls))
138 "Failed to enable microphone\n");
140 GNUNET_SCHEDULER_shutdown();
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)
147 GNUNET_log(GNUNET_ERROR_TYPE_DEBUG,
148 "Replaying %u bytes\n",
149 (unsigned int)rec->size);
150 speaker->play(speaker->cls,
154 GNUNET_SCHEDULER_cancel(st);
155 st = GNUNET_SCHEDULER_add_delayed(TIMEOUT,
162 * Process recorded audio data.
165 * @param data_size number of bytes in @a data
166 * @param data audio data to play
173 struct Recording *rec;
176 GNUNET_log(GNUNET_ERROR_TYPE_DEBUG,
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);
182 GNUNET_CONTAINER_DLL_insert_tail(rec_head,
189 * Main function that will be run by the scheduler.
192 * @param args remaining command-line arguments
193 * @param cfgfile name of the configuration file used (for saving, can be NULL!)
194 * @param cfg configuration
200 const struct GNUNET_CONFIGURATION_Handle *cfg)
205 microphone = GNUNET_MICROPHONE_create_from_hardware(cfg);
206 GNUNET_assert(NULL != microphone);
207 speaker = GNUNET_SPEAKER_create_from_hardware(cfg);
208 GNUNET_assert(NULL != speaker);
209 switch_task = GNUNET_SCHEDULER_add_delayed(TIMEOUT,
212 st = GNUNET_SCHEDULER_add_shutdown(&do_shutdown,
215 _("We will now be recording you for %s. After that time, the recording will be played back to you..."),
216 GNUNET_STRINGS_relative_time_to_string(TIMEOUT, GNUNET_YES));
218 microphone->enable_microphone(microphone->cls,
222 "Failed to enable microphone\n");
224 GNUNET_SCHEDULER_shutdown();
231 * The main function of our code to test microphone and speaker.
233 * @param argc number of arguments from the command line
234 * @param argv command line arguments
235 * @return 0 ok, 1 on error
241 static const struct GNUNET_GETOPT_CommandLineOption options[] = {
242 GNUNET_GETOPT_OPTION_END
246 GNUNET_STRINGS_get_utf8_args(argc, argv,
251 GNUNET_PROGRAM_run(argc, argv,
252 "gnunet-conversation-test",
253 gettext_noop("help text"),
257 GNUNET_free((void*)argv);
261 /* end of gnunet-conversation-test.c */