| /* $Id$ */ |
| /* |
| * 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_stereo_c Samples: Using Stereo Port |
| * |
| * This example demonstrates how to use @ref PJMEDIA_STEREO_PORT to |
| * change the channel count of the media streams. |
| * |
| * This file is pjsip-apps/src/samples/stereotest.c |
| * |
| * \includelineno stereotest.c |
| */ |
| |
| #include <pjmedia.h> |
| #include <pjlib-util.h> |
| #include <pjlib.h> |
| |
| #include <stdio.h> |
| #include <stdlib.h> |
| |
| #include "util.h" |
| |
| #define REC_CLOCK_RATE 16000 |
| #define PTIME 20 |
| |
| #define MODE_PLAY 1 |
| #define MODE_RECORD 2 |
| |
| |
| /* For logging purpose. */ |
| #define THIS_FILE "stereotest.c" |
| |
| |
| static const char *desc = |
| " FILE \n" |
| " \n" |
| " stereotest.c \n" |
| " \n" |
| " PURPOSE \n" |
| " \n" |
| " Demonstrate how use stereo port to play a WAV file to sound \n" |
| " device or record to a WAV file from sound device with different \n" |
| " channel count. \n" |
| " \n" |
| " USAGE \n" |
| " \n" |
| " stereotest [options] WAV \n" |
| " \n" |
| " Options: \n" |
| " -m, --mode=N Operation mode: 1 = playing, 2 = recording.\n" |
| " -C, --rec-ch-cnt=N Number of channel for recording file. \n" |
| " -c, --snd-ch-cnt=N Number of channel for opening sound device.\n" |
| " \n"; |
| |
| int main(int argc, char *argv[]) |
| { |
| pj_caching_pool cp; |
| pjmedia_endpt *med_endpt; |
| pj_pool_t *pool; |
| |
| pjmedia_port *file_port = NULL; |
| pjmedia_port *stereo_port = NULL; |
| pjmedia_snd_port *snd_port = NULL; |
| |
| int dev_id = -1; |
| char tmp[10]; |
| pj_status_t status; |
| |
| char *wav_file = NULL; |
| unsigned mode = 0; |
| unsigned rec_ch_cnt = 1; |
| unsigned snd_ch_cnt = 2; |
| |
| enum { |
| OPT_MODE = 'm', |
| OPT_REC_CHANNEL = 'C', |
| OPT_SND_CHANNEL = 'c', |
| }; |
| |
| struct pj_getopt_option long_options[] = { |
| { "mode", 1, 0, OPT_MODE }, |
| { "rec-ch-cnt", 1, 0, OPT_REC_CHANNEL }, |
| { "snd-ch-cnt", 1, 0, OPT_SND_CHANNEL }, |
| { NULL, 0, 0, 0 }, |
| }; |
| |
| int c; |
| int option_index; |
| |
| /* Must init PJLIB first: */ |
| status = pj_init(); |
| PJ_ASSERT_RETURN(status == PJ_SUCCESS, 1); |
| |
| /* Parse arguments */ |
| pj_optind = 0; |
| while((c=pj_getopt_long(argc,argv, "m:C:c:", long_options, &option_index))!=-1) { |
| |
| switch (c) { |
| case OPT_MODE: |
| if (mode) { |
| app_perror(THIS_FILE, "Cannot record and play at once!", |
| PJ_EINVAL); |
| return 1; |
| } |
| mode = atoi(pj_optarg); |
| break; |
| |
| case OPT_REC_CHANNEL: |
| rec_ch_cnt = atoi(pj_optarg); |
| break; |
| |
| case OPT_SND_CHANNEL: |
| snd_ch_cnt = atoi(pj_optarg); |
| break; |
| |
| default: |
| printf("Invalid options %s\n", argv[pj_optind]); |
| puts(desc); |
| return 1; |
| } |
| |
| } |
| |
| wav_file = argv[pj_optind]; |
| |
| /* Verify arguments. */ |
| if (!wav_file) { |
| app_perror(THIS_FILE, "WAV file not specified!", PJ_EINVAL); |
| puts(desc); |
| return 1; |
| } |
| if (!snd_ch_cnt || !rec_ch_cnt || rec_ch_cnt > 6) { |
| app_perror(THIS_FILE, "Invalid or too many channel count!", PJ_EINVAL); |
| puts(desc); |
| return 1; |
| } |
| if (mode != MODE_RECORD && mode != MODE_PLAY) { |
| app_perror(THIS_FILE, "Invalid operation mode!", PJ_EINVAL); |
| puts(desc); |
| return 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 */ |
| ); |
| |
| if (mode == MODE_PLAY) { |
| /* Create WAVE file player port. */ |
| status = pjmedia_wav_player_port_create( pool, wav_file, PTIME, 0, |
| 0, &file_port); |
| if (status != PJ_SUCCESS) { |
| app_perror(THIS_FILE, "Unable to open file", status); |
| return 1; |
| } |
| |
| /* Create sound player port. */ |
| status = pjmedia_snd_port_create_player( |
| pool, /* pool */ |
| dev_id, /* device id. */ |
| PJMEDIA_PIA_SRATE(&file_port->info),/* clock rate. */ |
| snd_ch_cnt, /* # of channels. */ |
| snd_ch_cnt * PTIME * /* samples per frame. */ |
| PJMEDIA_PIA_SRATE(&file_port->info) / 1000, |
| 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; |
| } |
| |
| if (snd_ch_cnt != PJMEDIA_PIA_CCNT(&file_port->info)) { |
| status = pjmedia_stereo_port_create( pool, |
| file_port, |
| snd_ch_cnt, |
| 0, |
| &stereo_port); |
| if (status != PJ_SUCCESS) { |
| app_perror(THIS_FILE, "Unable to create stereo port", status); |
| return 1; |
| } |
| |
| status = pjmedia_snd_port_connect(snd_port, stereo_port); |
| } else { |
| status = pjmedia_snd_port_connect(snd_port, file_port); |
| } |
| |
| if (status != PJ_SUCCESS) { |
| app_perror(THIS_FILE, "Unable to connect sound port", status); |
| return 1; |
| } |
| |
| } else { |
| /* Create WAVE file writer port. */ |
| status = pjmedia_wav_writer_port_create(pool, wav_file, |
| REC_CLOCK_RATE, |
| rec_ch_cnt, |
| rec_ch_cnt * PTIME * |
| REC_CLOCK_RATE / 1000, |
| NBITS, |
| 0, 0, |
| &file_port); |
| if (status != PJ_SUCCESS) { |
| app_perror(THIS_FILE, "Unable to open file", status); |
| return 1; |
| } |
| |
| /* Create sound player port. */ |
| status = pjmedia_snd_port_create_rec( |
| pool, /* pool */ |
| dev_id, /* device id. */ |
| REC_CLOCK_RATE, /* clock rate. */ |
| snd_ch_cnt, /* # of channels. */ |
| snd_ch_cnt * PTIME * |
| REC_CLOCK_RATE / 1000, /* samples per frame. */ |
| NBITS, /* 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; |
| } |
| |
| if (rec_ch_cnt != snd_ch_cnt) { |
| status = pjmedia_stereo_port_create( pool, |
| file_port, |
| snd_ch_cnt, |
| 0, |
| &stereo_port); |
| if (status != PJ_SUCCESS) { |
| app_perror(THIS_FILE, "Unable to create stereo port", status); |
| return 1; |
| } |
| |
| status = pjmedia_snd_port_connect(snd_port, stereo_port); |
| } else { |
| status = pjmedia_snd_port_connect(snd_port, file_port); |
| } |
| |
| if (status != PJ_SUCCESS) { |
| app_perror(THIS_FILE, "Unable to connect sound port", status); |
| return 1; |
| } |
| } |
| |
| /* Dump memory usage */ |
| dump_pool_usage(THIS_FILE, &cp); |
| |
| /* |
| * File should be playing and looping now, using sound device's thread. |
| */ |
| |
| |
| /* Sleep to allow log messages to flush */ |
| pj_thread_sleep(100); |
| |
| printf("Mode = %s\n", (mode == MODE_PLAY? "playing" : "recording") ); |
| printf("File port channel count = %d\n", PJMEDIA_PIA_CCNT(&file_port->info)); |
| printf("Sound port channel count = %d\n", |
| PJMEDIA_PIA_CCNT(&pjmedia_snd_port_get_port(snd_port)->info)); |
| puts(""); |
| puts("Press <ENTER> to stop 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 stereo port and file_port. |
| * Stereo port will destroy all downstream ports (e.g. the file port) |
| */ |
| status = pjmedia_port_destroy( stereo_port? stereo_port : 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; |
| |
| } |
| |
| |
| |