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- /*
- This file is part of GNUnet.
- Copyright (C) 2013 GNUnet e.V.
- GNUnet is free software: you can redistribute it and/or modify it
- under the terms of the GNU Affero General Public License as published
- by the Free Software Foundation, either version 3 of the License,
- or (at your option) any later version.
- GNUnet 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
- Affero General Public License for more details.
- You should have received a copy of the GNU Affero General Public License
- along with this program. If not, see <http://www.gnu.org/licenses/>.
- SPDX-License-Identifier: AGPL3.0-or-later
- */
- /**
- * @file conversation/gnunet-conversation-test.c
- * @brief tool to test speaker and microphone (for end users!)
- * @author Christian Grothoff
- */
- #include "platform.h"
- #include "gnunet_util_lib.h"
- #include "gnunet_speaker_lib.h"
- #include "gnunet_microphone_lib.h"
- /**
- * How long do we record before we replay?
- */
- #define TIMEOUT GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_SECONDS, 5)
- /**
- * A recording we made.
- */
- struct Recording
- {
- /**
- * Kept in a DLL.
- */
- struct Recording *next;
- /**
- * Kept in a DLL.
- */
- struct Recording *prev;
- /**
- * Number of bytes that follow.
- */
- size_t size;
- };
- /**
- * Final status code.
- */
- static int ret;
- /**
- * Handle to the microphone.
- */
- static struct GNUNET_MICROPHONE_Handle *microphone;
- /**
- * Handle to the speaker.
- */
- static struct GNUNET_SPEAKER_Handle *speaker;
- /**
- * Task scheduled to switch from recording to playback.
- */
- static struct GNUNET_SCHEDULER_Task *switch_task;
- /**
- * The shutdown task.
- */
- static struct GNUNET_SCHEDULER_Task *st;
- /**
- * Head of DLL with recorded frames.
- */
- static struct Recording *rec_head;
- /**
- * Tail of DLL with recorded frames.
- */
- static struct Recording *rec_tail;
- /**
- * Terminate test.
- *
- * @param cls NULL
- */
- static void
- do_shutdown (void *cls)
- {
- struct Recording *rec;
- (void) cls;
- if (NULL != switch_task)
- GNUNET_SCHEDULER_cancel (switch_task);
- if (NULL != microphone)
- GNUNET_MICROPHONE_destroy (microphone);
- if (NULL != speaker)
- GNUNET_SPEAKER_destroy (speaker);
- while (NULL != (rec = rec_head))
- {
- GNUNET_CONTAINER_DLL_remove (rec_head,
- rec_tail,
- rec);
- GNUNET_free (rec);
- }
- fprintf (stderr,
- _ ("\nEnd of transmission. Have a GNU day.\n"));
- }
- /**
- * Terminate recording process and switch to playback.
- *
- * @param cls NULL
- */
- static void
- switch_to_speaker (void *cls)
- {
- (void) cls;
- switch_task = NULL;
- microphone->disable_microphone (microphone->cls);
- if (GNUNET_OK !=
- speaker->enable_speaker (speaker->cls))
- {
- fprintf (stderr,
- "Failed to enable microphone\n");
- ret = 1;
- GNUNET_SCHEDULER_shutdown ();
- return;
- }
- fprintf (stderr,
- _ (
- "\new are now playing your recording back. If you can hear it, your audio settings are working..."));
- for (struct Recording *rec = rec_head; NULL != rec; rec = rec->next)
- {
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "Replaying %u bytes\n",
- (unsigned int) rec->size);
- speaker->play (speaker->cls,
- rec->size,
- &rec[1]);
- }
- GNUNET_SCHEDULER_cancel (st);
- st = GNUNET_SCHEDULER_add_delayed (TIMEOUT,
- &do_shutdown,
- NULL);
- }
- /**
- * Process recorded audio data.
- *
- * @param cls clsoure
- * @param data_size number of bytes in @a data
- * @param data audio data to play
- */
- static void
- record (void *cls,
- size_t data_size,
- const void *data)
- {
- struct Recording *rec;
- (void) cls;
- GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
- "Recorded %u bytes\n",
- (unsigned int) data_size);
- rec = GNUNET_malloc (sizeof(struct Recording) + data_size);
- rec->size = data_size;
- GNUNET_memcpy (&rec[1], data, data_size);
- GNUNET_CONTAINER_DLL_insert_tail (rec_head,
- rec_tail,
- rec);
- }
- /**
- * Main function that will be run by the scheduler.
- *
- * @param cls closure
- * @param args remaining command-line arguments
- * @param cfgfile name of the configuration file used (for saving, can be NULL!)
- * @param cfg configuration
- */
- static void
- run (void *cls,
- char *const *args,
- const char *cfgfile,
- const struct GNUNET_CONFIGURATION_Handle *cfg)
- {
- (void) cls;
- (void) args;
- (void) cfgfile;
- microphone = GNUNET_MICROPHONE_create_from_hardware (cfg);
- GNUNET_assert (NULL != microphone);
- speaker = GNUNET_SPEAKER_create_from_hardware (cfg);
- GNUNET_assert (NULL != speaker);
- switch_task = GNUNET_SCHEDULER_add_delayed (TIMEOUT,
- &switch_to_speaker,
- NULL);
- st = GNUNET_SCHEDULER_add_shutdown (&do_shutdown,
- NULL);
- fprintf (stderr,
- _ (
- "We will now be recording you for %s. After that time, the recording will be played back to you..."),
- GNUNET_STRINGS_relative_time_to_string (TIMEOUT, GNUNET_YES));
- if (GNUNET_OK !=
- microphone->enable_microphone (microphone->cls,
- &record, NULL))
- {
- fprintf (stderr,
- "Failed to enable microphone\n");
- ret = 1;
- GNUNET_SCHEDULER_shutdown ();
- return;
- }
- }
- /**
- * The main function of our code to test microphone and speaker.
- *
- * @param argc number of arguments from the command line
- * @param argv command line arguments
- * @return 0 ok, 1 on error
- */
- int
- main (int argc,
- char *const *argv)
- {
- static const struct GNUNET_GETOPT_CommandLineOption options[] = {
- GNUNET_GETOPT_OPTION_END
- };
- if (GNUNET_OK !=
- GNUNET_STRINGS_get_utf8_args (argc, argv,
- &argc, &argv))
- return 2;
- ret = (GNUNET_OK ==
- GNUNET_PROGRAM_run (argc, argv,
- "gnunet-conversation-test",
- gettext_noop ("help text"),
- options,
- &run,
- NULL)) ? ret : 1;
- GNUNET_free_nz ((void *) argv);
- return ret;
- }
- /* end of gnunet-conversation-test.c */
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