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/>.
20 * @file conversation/gnunet-conversation-test.c
21 * @brief tool to test speaker and microphone (for end users!)
22 * @author Christian Grothoff
25 #include "gnunet_util_lib.h"
26 #include "gnunet_speaker_lib.h"
27 #include "gnunet_microphone_lib.h"
30 * How long do we record before we replay?
32 #define TIMEOUT GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 5)
36 * A recording we made.
43 struct Recording *next;
48 struct Recording *prev;
51 * Number of bytes that follow.
63 * Handle to the microphone.
65 static struct GNUNET_MICROPHONE_Handle *microphone;
68 * Handle to the speaker.
70 static struct GNUNET_SPEAKER_Handle *speaker;
73 * Task scheduled to switch from recording to playback.
75 static struct GNUNET_SCHEDULER_Task * switch_task;
80 static struct GNUNET_SCHEDULER_Task * st;
83 * Head of DLL with recorded frames.
85 static struct Recording *rec_head;
88 * Tail of DLL with recorded frames.
90 static struct Recording *rec_tail;
99 do_shutdown (void *cls)
101 struct Recording *rec;
104 if (NULL != switch_task)
105 GNUNET_SCHEDULER_cancel (switch_task);
106 if (NULL != microphone)
107 GNUNET_MICROPHONE_destroy (microphone);
109 GNUNET_SPEAKER_destroy (speaker);
110 while (NULL != (rec = rec_head))
112 GNUNET_CONTAINER_DLL_remove (rec_head,
118 _("\nEnd of transmission. Have a GNU day.\n"));
123 * Terminate recording process and switch to playback.
128 switch_to_speaker (void *cls)
132 microphone->disable_microphone (microphone->cls);
134 speaker->enable_speaker (speaker->cls))
137 "Failed to enable microphone\n");
139 GNUNET_SCHEDULER_shutdown ();
143 _("\nWe are now playing your recording back. If you can hear it, your audio settings are working..."));
144 for (struct Recording *rec=rec_head; NULL != rec; rec = rec->next)
146 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
147 "Replaying %u bytes\n",
148 (unsigned int) rec->size);
149 speaker->play (speaker->cls,
153 GNUNET_SCHEDULER_cancel (st);
154 st = GNUNET_SCHEDULER_add_delayed (TIMEOUT,
161 * Process recorded audio data.
164 * @param data_size number of bytes in @a data
165 * @param data audio data to play
172 struct Recording *rec;
175 GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
176 "Recorded %u bytes\n",
177 (unsigned int) data_size);
178 rec = GNUNET_malloc (sizeof (struct Recording) + data_size);
179 rec->size = data_size;
180 GNUNET_memcpy (&rec[1], data, data_size);
181 GNUNET_CONTAINER_DLL_insert_tail (rec_head,
188 * Main function that will be run by the scheduler.
191 * @param args remaining command-line arguments
192 * @param cfgfile name of the configuration file used (for saving, can be NULL!)
193 * @param cfg configuration
199 const struct GNUNET_CONFIGURATION_Handle *cfg)
204 microphone = GNUNET_MICROPHONE_create_from_hardware (cfg);
205 GNUNET_assert (NULL != microphone);
206 speaker = GNUNET_SPEAKER_create_from_hardware (cfg);
207 GNUNET_assert (NULL != speaker);
208 switch_task = GNUNET_SCHEDULER_add_delayed (TIMEOUT,
211 st = GNUNET_SCHEDULER_add_shutdown (&do_shutdown,
214 _("We will now be recording you for %s. After that time, the recording will be played back to you..."),
215 GNUNET_STRINGS_relative_time_to_string (TIMEOUT, GNUNET_YES));
217 microphone->enable_microphone (microphone->cls,
221 "Failed to enable microphone\n");
223 GNUNET_SCHEDULER_shutdown ();
230 * The main function of our code to test microphone and speaker.
232 * @param argc number of arguments from the command line
233 * @param argv command line arguments
234 * @return 0 ok, 1 on error
240 static const struct GNUNET_GETOPT_CommandLineOption options[] = {
241 GNUNET_GETOPT_OPTION_END
245 GNUNET_STRINGS_get_utf8_args (argc, argv,
250 GNUNET_PROGRAM_run (argc, argv,
251 "gnunet-conversation-test",
252 gettext_noop ("help text"),
256 GNUNET_free ((void*) argv);
260 /* end of gnunet-conversation-test.c */