Benny Prijono | 69f7312 | 2006-08-04 11:08:00 +0000 | [diff] [blame] | 1 | /* $Id$ */ |
| 2 | /* |
Benny Prijono | a771a51 | 2007-02-19 01:13:53 +0000 | [diff] [blame] | 3 | * Copyright (C) 2003-2007 Benny Prijono <benny@prijono.org> |
Benny Prijono | 69f7312 | 2006-08-04 11:08:00 +0000 | [diff] [blame] | 4 | * |
| 5 | * This program is free software; you can redistribute it and/or modify |
| 6 | * it under the terms of the GNU General Public License as published by |
| 7 | * the Free Software Foundation; either version 2 of the License, or |
| 8 | * (at your option) any later version. |
| 9 | * |
| 10 | * This program is distributed in the hope that it will be useful, |
| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 13 | * GNU General Public License for more details. |
| 14 | * |
| 15 | * You should have received a copy of the GNU General Public License |
| 16 | * along with this program; if not, write to the Free Software |
| 17 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 18 | */ |
| 19 | |
| 20 | |
| 21 | /** |
| 22 | * \page page_pjmedia_samples_aectest_c Samples: AEC Test (aectest.c) |
| 23 | * |
| 24 | * Play a file to speaker, run AEC, and record the microphone input |
| 25 | * to see if echo is coming. |
| 26 | * |
| 27 | * This file is pjsip-apps/src/samples/aectest.c |
| 28 | * |
| 29 | * \includelineno aectest.c |
| 30 | */ |
| 31 | #include <pjmedia.h> |
| 32 | #include <pjlib-util.h> /* pj_getopt */ |
| 33 | #include <pjlib.h> |
| 34 | |
| 35 | /* For logging purpose. */ |
| 36 | #define THIS_FILE "playfile.c" |
| 37 | #define PTIME 20 |
Benny Prijono | 12a669c | 2006-11-23 07:32:13 +0000 | [diff] [blame] | 38 | #define TAIL_LENGTH 800 |
Benny Prijono | 69f7312 | 2006-08-04 11:08:00 +0000 | [diff] [blame] | 39 | |
| 40 | static const char *desc = |
| 41 | " FILE \n" |
| 42 | " \n" |
| 43 | " aectest.c \n" |
| 44 | " \n" |
| 45 | " PURPOSE \n" |
| 46 | " \n" |
| 47 | " Test the AEC effectiveness. \n" |
| 48 | " \n" |
| 49 | " USAGE \n" |
| 50 | " \n" |
| 51 | " aectest INPUT.WAV OUTPUT.WAV \n" |
| 52 | " \n" |
| 53 | " INPUT.WAV is the file to be played to the speaker. \n" |
| 54 | " OUTPUT.WAV is the output file containing recorded signal from the\n" |
| 55 | " microphone."; |
| 56 | |
| 57 | |
| 58 | static void app_perror(const char *sender, const char *title, pj_status_t st) |
| 59 | { |
| 60 | char errmsg[PJ_ERR_MSG_SIZE]; |
| 61 | |
| 62 | pj_strerror(st, errmsg, sizeof(errmsg)); |
| 63 | PJ_LOG(3,(sender, "%s: %s", title, errmsg)); |
| 64 | } |
| 65 | |
| 66 | |
| 67 | /* |
| 68 | * main() |
| 69 | */ |
| 70 | int main(int argc, char *argv[]) |
| 71 | { |
| 72 | pj_caching_pool cp; |
| 73 | pjmedia_endpt *med_endpt; |
| 74 | pj_pool_t *pool; |
| 75 | pjmedia_port *play_port; |
| 76 | pjmedia_port *rec_port; |
| 77 | pjmedia_port *bidir_port; |
| 78 | pjmedia_snd_port *snd; |
| 79 | char tmp[10]; |
| 80 | pj_status_t status; |
| 81 | |
| 82 | |
| 83 | if (argc != 3) { |
| 84 | puts("Error: arguments required"); |
| 85 | puts(desc); |
| 86 | return 1; |
| 87 | } |
| 88 | |
| 89 | |
| 90 | /* Must init PJLIB first: */ |
| 91 | status = pj_init(); |
| 92 | PJ_ASSERT_RETURN(status == PJ_SUCCESS, 1); |
| 93 | |
| 94 | /* Must create a pool factory before we can allocate any memory. */ |
| 95 | pj_caching_pool_init(&cp, &pj_pool_factory_default_policy, 0); |
| 96 | |
| 97 | /* |
| 98 | * Initialize media endpoint. |
| 99 | * This will implicitly initialize PJMEDIA too. |
| 100 | */ |
| 101 | status = pjmedia_endpt_create(&cp.factory, NULL, 1, &med_endpt); |
| 102 | PJ_ASSERT_RETURN(status == PJ_SUCCESS, 1); |
| 103 | |
| 104 | /* Create memory pool for our file player */ |
| 105 | pool = pj_pool_create( &cp.factory, /* pool factory */ |
| 106 | "wav", /* pool name. */ |
| 107 | 4000, /* init size */ |
| 108 | 4000, /* increment size */ |
| 109 | NULL /* callback on error */ |
| 110 | ); |
| 111 | |
| 112 | /* Create file media port from the WAV file */ |
| 113 | status = pjmedia_wav_player_port_create( pool, /* memory pool */ |
| 114 | argv[1], /* file to play */ |
| 115 | PTIME, /* ptime. */ |
| 116 | 0, /* flags */ |
| 117 | 0, /* default buffer */ |
| 118 | &play_port); |
| 119 | if (status != PJ_SUCCESS) { |
| 120 | app_perror(THIS_FILE, "Unable to open input WAV file", status); |
| 121 | return 1; |
| 122 | } |
| 123 | |
| 124 | if (play_port->info.channel_count != 1) { |
| 125 | puts("Error: input WAV must have 1 channel audio"); |
| 126 | return 1; |
| 127 | } |
| 128 | if (play_port->info.bits_per_sample != 16) { |
| 129 | puts("Error: input WAV must be encoded as 16bit PCM"); |
| 130 | return 1; |
| 131 | } |
| 132 | |
| 133 | #ifdef PJ_DARWINOS |
| 134 | /* Need to force clock rate on MacOS */ |
| 135 | if (play_port->info.clock_rate != 44100) { |
| 136 | pjmedia_port *resample_port; |
| 137 | |
| 138 | status = pjmedia_resample_port_create(pool, play_port, 44100, 0, |
| 139 | &resample_port); |
| 140 | if (status != PJ_SUCCESS) { |
| 141 | app_perror(THIS_FILE, "Unable to create resampling port", status); |
| 142 | return 1; |
| 143 | } |
| 144 | |
| 145 | data.play_port = resample_port; |
| 146 | } |
| 147 | #endif |
| 148 | |
| 149 | /* Create WAV output file port */ |
| 150 | status = pjmedia_wav_writer_port_create(pool, argv[2], |
| 151 | play_port->info.clock_rate, |
| 152 | play_port->info.channel_count, |
| 153 | play_port->info.samples_per_frame, |
| 154 | play_port->info.bits_per_sample, |
| 155 | 0, 0, &rec_port); |
| 156 | if (status != PJ_SUCCESS) { |
| 157 | app_perror(THIS_FILE, "Unable to open output file", status); |
| 158 | return 1; |
| 159 | } |
| 160 | |
| 161 | /* Create bidirectional port from the WAV ports */ |
| 162 | pjmedia_bidirectional_port_create(pool, play_port, rec_port, &bidir_port); |
| 163 | |
Benny Prijono | 69f7312 | 2006-08-04 11:08:00 +0000 | [diff] [blame] | 164 | /* Create sound device. */ |
| 165 | status = pjmedia_snd_port_create(pool, -1, -1, |
| 166 | play_port->info.clock_rate, |
| 167 | play_port->info.channel_count, |
| 168 | play_port->info.samples_per_frame, |
| 169 | play_port->info.bits_per_sample, |
| 170 | 0, &snd); |
| 171 | if (status != PJ_SUCCESS) { |
| 172 | app_perror(THIS_FILE, "Unable to open sound device", status); |
| 173 | return 1; |
| 174 | } |
| 175 | |
| 176 | |
Benny Prijono | f20687a | 2006-08-04 18:27:19 +0000 | [diff] [blame] | 177 | /* Customize AEC */ |
Benny Prijono | 12a669c | 2006-11-23 07:32:13 +0000 | [diff] [blame] | 178 | pjmedia_snd_port_set_ec(snd, pool, TAIL_LENGTH, 0); |
Benny Prijono | f20687a | 2006-08-04 18:27:19 +0000 | [diff] [blame] | 179 | |
Benny Prijono | 69f7312 | 2006-08-04 11:08:00 +0000 | [diff] [blame] | 180 | /* Connect sound to the port */ |
| 181 | pjmedia_snd_port_connect(snd, bidir_port); |
| 182 | |
| 183 | |
| 184 | puts(""); |
| 185 | printf("Playing %s and recording to %s\n", argv[1], argv[2]); |
| 186 | puts("Press <ENTER> to quit"); |
| 187 | |
| 188 | fgets(tmp, sizeof(tmp), stdin); |
| 189 | |
| 190 | |
| 191 | /* Start deinitialization: */ |
| 192 | |
| 193 | /* Destroy sound device */ |
| 194 | status = pjmedia_snd_port_destroy( snd ); |
| 195 | PJ_ASSERT_RETURN(status == PJ_SUCCESS, 1); |
| 196 | |
| 197 | |
| 198 | /* Destroy file port(s) */ |
| 199 | status = pjmedia_port_destroy( play_port ); |
| 200 | PJ_ASSERT_RETURN(status == PJ_SUCCESS, 1); |
| 201 | status = pjmedia_port_destroy( rec_port ); |
| 202 | PJ_ASSERT_RETURN(status == PJ_SUCCESS, 1); |
| 203 | |
| 204 | |
| 205 | /* Release application pool */ |
| 206 | pj_pool_release( pool ); |
| 207 | |
| 208 | /* Destroy media endpoint. */ |
| 209 | pjmedia_endpt_destroy( med_endpt ); |
| 210 | |
| 211 | /* Destroy pool factory */ |
| 212 | pj_caching_pool_destroy( &cp ); |
| 213 | |
Benny Prijono | af1bb1e | 2006-11-21 12:39:31 +0000 | [diff] [blame] | 214 | /* Shutdown PJLIB */ |
| 215 | pj_shutdown(); |
Benny Prijono | 69f7312 | 2006-08-04 11:08:00 +0000 | [diff] [blame] | 216 | |
| 217 | /* Done. */ |
| 218 | return 0; |
| 219 | } |
| 220 | |