| /* $Id$ */ |
| /* |
| * Copyright (C) 2008-2011 Teluu Inc. (http://www.teluu.com) |
| * Copyright (C) 2003-2008 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 NCHANNELS 2 |
| #define SAMPLES_PER_FRAME (NCHANNELS * (CLOCK_RATE * 10 / 1000)) |
| #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. */ |
| PJMEDIA_PIA_SRATE(&file_port->info),/* clock rate. */ |
| PJMEDIA_PIA_CCNT(&file_port->info),/* # of channels. */ |
| PJMEDIA_PIA_SPF(&file_port->info), /* samples per frame. */ |
| PJMEDIA_PIA_BITS(&file_port->info),/* 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"); |
| |
| if (fgets(tmp, sizeof(tmp), stdin) == NULL) { |
| puts("EOF while reading stdin, will quit now.."); |
| } |
| |
| |
| /* 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; |
| } |