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/* $Id$ */
/*
* Copyright (C) 2003-2006 Benny Prijono <benny@prijono.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
/**
* \page page_pjmedia_samples_recfile_c Samples: Capturing Audio to WAV File
*
* In this example, we capture audio from the sound device and save it to
* WAVE file.
*
* @see page_pjmedia_samples_playfile_c
*
* This file is pjsip-apps/src/samples/recfile.c
*
* \includelineno recfile.c
*/
#include <pjmedia.h>
#include <pjlib.h>
#include <stdio.h>
/* For logging purpose. */
#define THIS_FILE "recfile.c"
/* Configs */
#define CLOCK_RATE 44100
#define SAMPLES_PER_FRAME (CLOCK_RATE * 20 / 1000)
#define NCHANNELS 2
#define BITS_PER_SAMPLE 16
static const char *desc =
" FILE \n"
" recfile.c \n"
" \n"
" PURPOSE: \n"
" Record microphone to WAVE file. \n"
" \n"
" USAGE: \n"
" recfile FILE.WAV \n"
"";
/* Util to display the error message for the specified error code */
static int app_perror( const char *sender, const char *title,
pj_status_t status)
{
char errmsg[PJ_ERR_MSG_SIZE];
PJ_UNUSED_ARG(sender);
pj_strerror(status, errmsg, sizeof(errmsg));
printf("%s: %s [code=%d]\n", title, errmsg, status);
return 1;
}
/*
* main()
*/
int main(int argc, char *argv[])
{
pj_caching_pool cp;
pjmedia_endpt *med_endpt;
pj_pool_t *pool;
pjmedia_port *file_port;
pjmedia_snd_port *snd_port;
char tmp[10];
pj_status_t status;
/* Verify cmd line arguments. */
if (argc != 2) {
puts("");
puts(desc);
return 0;
}
/* Must init PJLIB first: */
status = pj_init();
PJ_ASSERT_RETURN(status == PJ_SUCCESS, 1);
/* Must create a pool factory before we can allocate any memory. */
pj_caching_pool_init(&cp, &pj_pool_factory_default_policy, 0);
/*
* Initialize media endpoint.
* This will implicitly initialize PJMEDIA too.
*/
status = pjmedia_endpt_create(&cp.factory, NULL, 1, &med_endpt);
PJ_ASSERT_RETURN(status == PJ_SUCCESS, 1);
/* Create memory pool for our file player */
pool = pj_pool_create( &cp.factory, /* pool factory */
"app", /* pool name. */
4000, /* init size */
4000, /* increment size */
NULL /* callback on error */
);
/* Create WAVE file writer port. */
status = pjmedia_wav_writer_port_create( pool, argv[1],
CLOCK_RATE,
NCHANNELS,
SAMPLES_PER_FRAME,
BITS_PER_SAMPLE,
0, 0,
&file_port);
if (status != PJ_SUCCESS) {
app_perror(THIS_FILE, "Unable to open WAV file for writing", status);
return 1;
}
/* Create sound player port. */
status = pjmedia_snd_port_create_rec(
pool, /* pool */
-1, /* use default dev. */
file_port->info.clock_rate, /* clock rate. */
file_port->info.channel_count, /* # of channels. */
file_port->info.samples_per_frame, /* samples per frame. */
file_port->info.bits_per_sample, /* bits per sample. */
0, /* options */
&snd_port /* returned port */
);
if (status != PJ_SUCCESS) {
app_perror(THIS_FILE, "Unable to open sound device", status);
return 1;
}
/* Connect file port to the sound player.
* Stream playing will commence immediately.
*/
status = pjmedia_snd_port_connect( snd_port, file_port);
PJ_ASSERT_RETURN(status == PJ_SUCCESS, 1);
/*
* Recording should be started now.
*/
/* Sleep to allow log messages to flush */
pj_thread_sleep(10);
printf("Recodring %s..\n", argv[1]);
puts("");
puts("Press <ENTER> to stop recording and quit");
fgets(tmp, sizeof(tmp), stdin);
/* Start deinitialization: */
/* Destroy sound device */
status = pjmedia_snd_port_destroy( snd_port );
PJ_ASSERT_RETURN(status == PJ_SUCCESS, 1);
/* Destroy file port */
status = pjmedia_port_destroy( file_port );
PJ_ASSERT_RETURN(status == PJ_SUCCESS, 1);
/* Release application pool */
pj_pool_release( pool );
/* Destroy media endpoint. */
pjmedia_endpt_destroy( med_endpt );
/* Destroy pool factory */
pj_caching_pool_destroy( &cp );
/* Shutdown PJLIB */
pj_shutdown();
/* Done. */
return 0;
}
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