Benny Prijono | 69d9d19 | 2006-05-21 19:00:28 +0000 | [diff] [blame] | 1 | /* $Id$ */ |
| 2 | /* |
| 3 | * Copyright (C) 2003-2006 Benny Prijono <benny@prijono.org> |
| 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 | |
Benny Prijono | 1ec70b3 | 2006-06-20 15:39:07 +0000 | [diff] [blame] | 20 | /** |
| 21 | * \page page_pjmedia_samples_sndtest_c Samples: Sound Card Benchmark |
| 22 | * |
| 23 | * This example can be used to benchmark the quality of the sound card |
| 24 | * installed in the system. At the end of the test, it will report |
| 25 | * the jitter and clock drifts of the device. |
| 26 | * |
| 27 | * This file is pjsip-apps/src/samples/sndtest.c |
| 28 | * |
| 29 | * Screenshots on WinXP: \image html sndtest.jpg |
| 30 | * |
| 31 | * \includelineno sndtest.c |
| 32 | */ |
| 33 | |
| 34 | |
Benny Prijono | 69d9d19 | 2006-05-21 19:00:28 +0000 | [diff] [blame] | 35 | #include <pjmedia.h> |
| 36 | #include <pjlib.h> |
| 37 | #include <pjlib-util.h> |
| 38 | |
| 39 | #include <stdlib.h> /* atoi() */ |
| 40 | #include <stdio.h> |
| 41 | |
| 42 | |
| 43 | |
| 44 | #define THIS_FILE "sndtest.c" |
| 45 | |
| 46 | /* Warn (print log with yellow color) if frame jitter is larger than |
| 47 | * this value (in usec). |
| 48 | */ |
| 49 | #define WARN_JITTER_USEC 1000 |
| 50 | |
| 51 | /* Test duration in msec */ |
| 52 | #define DURATION 10000 |
| 53 | |
Benny Prijono | 6a61c22 | 2006-05-22 10:28:44 +0000 | [diff] [blame] | 54 | /* Skip the first msec from the calculation */ |
| 55 | #define SKIP_DURATION 1000 |
| 56 | |
| 57 | /* Max frames per sec (to calculate number of delays to keep). */ |
Benny Prijono | 69d9d19 | 2006-05-21 19:00:28 +0000 | [diff] [blame] | 58 | #define MAX_FRAMES_PER_SEC 100 |
| 59 | |
| 60 | /* Number of frame durations to keep */ |
| 61 | #define MAX_DELAY_COUNTER (((DURATION/1000)+1)*MAX_FRAMES_PER_SEC) |
| 62 | |
| 63 | |
| 64 | struct stream_data |
| 65 | { |
| 66 | pj_uint32_t first_timestamp; |
| 67 | pj_uint32_t last_timestamp; |
| 68 | pj_timestamp last_called; |
| 69 | unsigned counter; |
| 70 | unsigned min_delay; |
| 71 | unsigned max_delay; |
| 72 | unsigned delay[MAX_DELAY_COUNTER]; |
| 73 | }; |
| 74 | |
| 75 | struct test_data { |
| 76 | pjmedia_dir dir; |
| 77 | unsigned clock_rate; |
| 78 | unsigned samples_per_frame; |
| 79 | unsigned channel_count; |
| 80 | pj_bool_t running; |
| 81 | pj_bool_t has_error; |
| 82 | |
| 83 | struct stream_data capture_data; |
| 84 | struct stream_data playback_data; |
| 85 | }; |
| 86 | |
| 87 | |
| 88 | |
| 89 | static const char *desc = |
| 90 | " sndtest.c \n" |
| 91 | " \n" |
| 92 | " PURPOSE: \n" |
| 93 | " Test the performance of sound device. \n" |
| 94 | " \n" |
| 95 | " USAGE: \n" |
| 96 | " sndtest --help \n" |
| 97 | " sndtest [options] \n" |
| 98 | " \n" |
| 99 | " where options: \n" |
| 100 | " --id=ID -i Use device ID (default is -1) \n" |
| 101 | " --rate=HZ -r Set test clock rate (default=8000)\n" |
| 102 | " --frame=SAMPLES -f Set number of samples per frame\n" |
| 103 | " --channel=CH -n Set number of channels (default=1)\n" |
| 104 | " --verbose -v Show verbose result \n" |
| 105 | " --help -h Show this screen \n" |
| 106 | ; |
| 107 | |
| 108 | |
| 109 | |
| 110 | static void enum_devices(void) |
| 111 | { |
| 112 | int i, count; |
| 113 | |
| 114 | count = pjmedia_snd_get_dev_count(); |
| 115 | if (count == 0) { |
| 116 | PJ_LOG(3,(THIS_FILE, "No devices found")); |
| 117 | return; |
| 118 | } |
| 119 | |
| 120 | PJ_LOG(3,(THIS_FILE, "Found %d devices:", count)); |
| 121 | for (i=0; i<count; ++i) { |
| 122 | const pjmedia_snd_dev_info *info; |
| 123 | |
| 124 | info = pjmedia_snd_get_dev_info(i); |
| 125 | pj_assert(info != NULL); |
| 126 | |
| 127 | PJ_LOG(3,(THIS_FILE," %d: %s (capture=%d, playback=%d)", |
| 128 | i, info->name, info->input_count, info->output_count)); |
| 129 | } |
| 130 | } |
| 131 | |
| 132 | |
| 133 | static const char *get_dev_name(int dev_id) |
| 134 | { |
| 135 | const pjmedia_snd_dev_info *info; |
| 136 | |
| 137 | if (dev_id == -1) |
| 138 | dev_id = 0; |
| 139 | |
| 140 | info = pjmedia_snd_get_dev_info(dev_id); |
| 141 | if (info == NULL) |
| 142 | return "????"; |
| 143 | |
| 144 | return info->name; |
| 145 | } |
| 146 | |
| 147 | |
| 148 | static pj_status_t play_cb(void *user_data, pj_uint32_t timestamp, |
| 149 | void *output, unsigned size) |
| 150 | { |
| 151 | struct test_data *test_data = user_data; |
| 152 | struct stream_data *strm_data = &test_data->playback_data; |
| 153 | |
Benny Prijono | 6a61c22 | 2006-05-22 10:28:44 +0000 | [diff] [blame] | 154 | /* Skip frames when test is not started or test has finished */ |
Benny Prijono | 69d9d19 | 2006-05-21 19:00:28 +0000 | [diff] [blame] | 155 | if (!test_data->running) { |
Benny Prijono | ac623b3 | 2006-07-03 15:19:31 +0000 | [diff] [blame] | 156 | pj_bzero(output, size); |
Benny Prijono | 69d9d19 | 2006-05-21 19:00:28 +0000 | [diff] [blame] | 157 | return PJ_SUCCESS; |
| 158 | } |
| 159 | |
Benny Prijono | 6a61c22 | 2006-05-22 10:28:44 +0000 | [diff] [blame] | 160 | /* Save last timestamp seen (to calculate drift) */ |
Benny Prijono | 69d9d19 | 2006-05-21 19:00:28 +0000 | [diff] [blame] | 161 | strm_data->last_timestamp = timestamp; |
| 162 | |
| 163 | if (strm_data->last_called.u64 == 0) { |
| 164 | pj_get_timestamp(&strm_data->last_called); |
Benny Prijono | 6a61c22 | 2006-05-22 10:28:44 +0000 | [diff] [blame] | 165 | /* Init min_delay to one frame */ |
Benny Prijono | 69d9d19 | 2006-05-21 19:00:28 +0000 | [diff] [blame] | 166 | strm_data->min_delay = test_data->samples_per_frame * 1000000 / |
| 167 | test_data->clock_rate; |
| 168 | strm_data->first_timestamp = timestamp; |
| 169 | |
| 170 | } else if (strm_data->counter <= MAX_DELAY_COUNTER) { |
| 171 | pj_timestamp now; |
| 172 | unsigned delay; |
| 173 | |
| 174 | pj_get_timestamp(&now); |
| 175 | |
Benny Prijono | 6a61c22 | 2006-05-22 10:28:44 +0000 | [diff] [blame] | 176 | /* Calculate frame interval */ |
Benny Prijono | 69d9d19 | 2006-05-21 19:00:28 +0000 | [diff] [blame] | 177 | delay = pj_elapsed_usec(&strm_data->last_called, &now); |
| 178 | if (delay < strm_data->min_delay) |
| 179 | strm_data->min_delay = delay; |
| 180 | if (delay > strm_data->max_delay) |
| 181 | strm_data->max_delay = delay; |
| 182 | |
| 183 | strm_data->last_called = now; |
| 184 | |
Benny Prijono | 6a61c22 | 2006-05-22 10:28:44 +0000 | [diff] [blame] | 185 | /* Save the frame interval for later calculation */ |
Benny Prijono | 69d9d19 | 2006-05-21 19:00:28 +0000 | [diff] [blame] | 186 | strm_data->delay[strm_data->counter] = delay; |
| 187 | ++strm_data->counter; |
Benny Prijono | 6a61c22 | 2006-05-22 10:28:44 +0000 | [diff] [blame] | 188 | |
| 189 | } else { |
| 190 | |
| 191 | /* No space, can't take anymore frames */ |
| 192 | test_data->running = 0; |
| 193 | |
Benny Prijono | 69d9d19 | 2006-05-21 19:00:28 +0000 | [diff] [blame] | 194 | } |
| 195 | |
Benny Prijono | ac623b3 | 2006-07-03 15:19:31 +0000 | [diff] [blame] | 196 | pj_bzero(output, size); |
Benny Prijono | 69d9d19 | 2006-05-21 19:00:28 +0000 | [diff] [blame] | 197 | return PJ_SUCCESS; |
| 198 | } |
| 199 | |
| 200 | static pj_status_t rec_cb(void *user_data, pj_uint32_t timestamp, |
Benny Prijono | f521eb0 | 2006-08-06 23:07:25 +0000 | [diff] [blame^] | 201 | void *input, unsigned size) |
Benny Prijono | 69d9d19 | 2006-05-21 19:00:28 +0000 | [diff] [blame] | 202 | { |
| 203 | |
| 204 | struct test_data *test_data = user_data; |
| 205 | struct stream_data *strm_data = &test_data->capture_data; |
| 206 | |
| 207 | PJ_UNUSED_ARG(input); |
| 208 | PJ_UNUSED_ARG(size); |
| 209 | |
Benny Prijono | 6a61c22 | 2006-05-22 10:28:44 +0000 | [diff] [blame] | 210 | /* Skip frames when test is not started or test has finished */ |
Benny Prijono | 69d9d19 | 2006-05-21 19:00:28 +0000 | [diff] [blame] | 211 | if (!test_data->running) { |
| 212 | return PJ_SUCCESS; |
| 213 | } |
| 214 | |
Benny Prijono | 6a61c22 | 2006-05-22 10:28:44 +0000 | [diff] [blame] | 215 | /* Save last timestamp seen (to calculate drift) */ |
Benny Prijono | 69d9d19 | 2006-05-21 19:00:28 +0000 | [diff] [blame] | 216 | strm_data->last_timestamp = timestamp; |
| 217 | |
| 218 | if (strm_data->last_called.u64 == 0) { |
| 219 | pj_get_timestamp(&strm_data->last_called); |
Benny Prijono | 6a61c22 | 2006-05-22 10:28:44 +0000 | [diff] [blame] | 220 | /* Init min_delay to one frame */ |
Benny Prijono | 69d9d19 | 2006-05-21 19:00:28 +0000 | [diff] [blame] | 221 | strm_data->min_delay = test_data->samples_per_frame * 1000000 / |
| 222 | test_data->clock_rate; |
| 223 | strm_data->first_timestamp = timestamp; |
| 224 | |
| 225 | } else if (strm_data->counter <= MAX_DELAY_COUNTER) { |
| 226 | pj_timestamp now; |
| 227 | unsigned delay; |
| 228 | |
| 229 | pj_get_timestamp(&now); |
Benny Prijono | 6a61c22 | 2006-05-22 10:28:44 +0000 | [diff] [blame] | 230 | |
| 231 | /* Calculate frame interval */ |
Benny Prijono | 69d9d19 | 2006-05-21 19:00:28 +0000 | [diff] [blame] | 232 | delay = pj_elapsed_usec(&strm_data->last_called, &now); |
| 233 | if (delay < strm_data->min_delay) |
| 234 | strm_data->min_delay = delay; |
| 235 | if (delay > strm_data->max_delay) |
| 236 | strm_data->max_delay = delay; |
| 237 | |
| 238 | strm_data->last_called = now; |
| 239 | |
Benny Prijono | 6a61c22 | 2006-05-22 10:28:44 +0000 | [diff] [blame] | 240 | /* Save the frame interval for later calculation */ |
Benny Prijono | 69d9d19 | 2006-05-21 19:00:28 +0000 | [diff] [blame] | 241 | strm_data->delay[strm_data->counter] = delay; |
| 242 | ++strm_data->counter; |
Benny Prijono | 6a61c22 | 2006-05-22 10:28:44 +0000 | [diff] [blame] | 243 | |
| 244 | } else { |
| 245 | |
| 246 | /* No space, can't take anymore frames */ |
| 247 | test_data->running = 0; |
| 248 | |
Benny Prijono | 69d9d19 | 2006-05-21 19:00:28 +0000 | [diff] [blame] | 249 | } |
| 250 | |
| 251 | return PJ_SUCCESS; |
| 252 | } |
| 253 | |
| 254 | static void app_perror(const char *title, pj_status_t status) |
| 255 | { |
| 256 | char errmsg[PJ_ERR_MSG_SIZE]; |
| 257 | |
| 258 | pj_strerror(status, errmsg, sizeof(errmsg)); |
| 259 | printf( "%s: %s (err=%d)\n", |
| 260 | title, errmsg, status); |
| 261 | } |
| 262 | |
| 263 | |
| 264 | static void print_stream_data(const char *title, |
| 265 | struct test_data *test_data, |
| 266 | struct stream_data *strm_data, |
| 267 | int verbose) |
| 268 | { |
| 269 | unsigned i, dur; |
Benny Prijono | 959df2a | 2006-05-22 10:48:11 +0000 | [diff] [blame] | 270 | int ptime; |
Benny Prijono | 6a61c22 | 2006-05-22 10:28:44 +0000 | [diff] [blame] | 271 | unsigned min_jitter, max_jitter, sum_jitter, avg_jitter=0; |
Benny Prijono | 69d9d19 | 2006-05-21 19:00:28 +0000 | [diff] [blame] | 272 | |
| 273 | PJ_LOG(3,(THIS_FILE, " %s stream report:", title)); |
| 274 | |
| 275 | /* Check that frames are captured/played */ |
| 276 | if (strm_data->counter == 0) { |
| 277 | PJ_LOG(1,(THIS_FILE, " Error: no frames are captured/played!")); |
| 278 | test_data->has_error = 1; |
| 279 | return; |
| 280 | } |
| 281 | |
| 282 | /* Duration */ |
| 283 | dur = (strm_data->counter+1) * test_data->samples_per_frame * 1000 / |
| 284 | test_data->clock_rate; |
| 285 | PJ_LOG(3,(THIS_FILE, " Duration: %ds.%03d", |
| 286 | dur/1000, dur%1000)); |
| 287 | |
| 288 | /* Frame interval */ |
| 289 | if (strm_data->max_delay - strm_data->min_delay < WARN_JITTER_USEC) { |
| 290 | PJ_LOG(3,(THIS_FILE, |
| 291 | " Frame interval: min=%d.%03dms, max=%d.%03dms", |
| 292 | strm_data->min_delay/1000, strm_data->min_delay%1000, |
| 293 | strm_data->max_delay/1000, strm_data->max_delay%1000)); |
| 294 | } else { |
| 295 | test_data->has_error = 1; |
| 296 | PJ_LOG(2,(THIS_FILE, |
| 297 | " Frame interval: min=%d.%03dms, max=%d.%03dms", |
| 298 | strm_data->min_delay/1000, strm_data->min_delay%1000, |
| 299 | strm_data->max_delay/1000, strm_data->max_delay%1000)); |
| 300 | } |
| 301 | |
| 302 | if (verbose) { |
| 303 | unsigned i; |
| 304 | unsigned decor = pj_log_get_decor(); |
| 305 | |
| 306 | PJ_LOG(3,(THIS_FILE, " Dumping frame delays:")); |
| 307 | |
| 308 | pj_log_set_decor(0); |
| 309 | for (i=0; i<strm_data->counter; ++i) |
| 310 | PJ_LOG(3,(THIS_FILE, " %d.%03d", strm_data->delay[i]/1000, |
| 311 | strm_data->delay[i]%1000)); |
| 312 | PJ_LOG(3,(THIS_FILE, "\r\n")); |
| 313 | pj_log_set_decor(decor); |
| 314 | } |
| 315 | |
Benny Prijono | 959df2a | 2006-05-22 10:48:11 +0000 | [diff] [blame] | 316 | /* Calculate frame ptime in usec */ |
| 317 | ptime = test_data->samples_per_frame * 1000000 / |
| 318 | test_data->clock_rate; |
| 319 | |
Benny Prijono | 69d9d19 | 2006-05-21 19:00:28 +0000 | [diff] [blame] | 320 | /* Calculate jitter */ |
| 321 | min_jitter = 0xFFFFF; |
| 322 | max_jitter = 0; |
Benny Prijono | 6a61c22 | 2006-05-22 10:28:44 +0000 | [diff] [blame] | 323 | sum_jitter = 0; |
Benny Prijono | 69d9d19 | 2006-05-21 19:00:28 +0000 | [diff] [blame] | 324 | |
| 325 | for (i=1; i<strm_data->counter; ++i) { |
Benny Prijono | 959df2a | 2006-05-22 10:48:11 +0000 | [diff] [blame] | 326 | int jitter1, jitter2, jitter; |
| 327 | |
| 328 | /* jitter1 is interarrival difference */ |
| 329 | jitter1 = strm_data->delay[i] - strm_data->delay[i-1]; |
| 330 | if (jitter1 < 0) jitter1 = -jitter1; |
Benny Prijono | 69d9d19 | 2006-05-21 19:00:28 +0000 | [diff] [blame] | 331 | |
Benny Prijono | 959df2a | 2006-05-22 10:48:11 +0000 | [diff] [blame] | 332 | /* jitter2 is difference between actual and scheduled arrival. |
| 333 | * This is intended to capture situation when frames are coming |
| 334 | * instantaneously, which will calculate as zero jitter with |
| 335 | * jitter1 calculation. |
| 336 | */ |
| 337 | jitter2 = ptime - strm_data->delay[i]; |
| 338 | if (jitter2 < 0) jitter2 = -jitter2; |
| 339 | |
| 340 | /* Set jitter as the maximum of the two jitter calculations. |
| 341 | * This is intended to show the worst result. |
| 342 | */ |
| 343 | jitter = (jitter1>jitter2) ? jitter1 : jitter2; |
| 344 | |
| 345 | /* Calculate min, max, avg jitter */ |
Benny Prijono | 69d9d19 | 2006-05-21 19:00:28 +0000 | [diff] [blame] | 346 | if (jitter < (int)min_jitter) min_jitter = jitter; |
| 347 | if (jitter > (int)max_jitter) max_jitter = jitter; |
| 348 | |
Benny Prijono | 6a61c22 | 2006-05-22 10:28:44 +0000 | [diff] [blame] | 349 | sum_jitter += jitter; |
Benny Prijono | 69d9d19 | 2006-05-21 19:00:28 +0000 | [diff] [blame] | 350 | } |
Benny Prijono | 6a61c22 | 2006-05-22 10:28:44 +0000 | [diff] [blame] | 351 | |
| 352 | avg_jitter = (sum_jitter) / (strm_data->counter - 1); |
| 353 | |
Benny Prijono | 69d9d19 | 2006-05-21 19:00:28 +0000 | [diff] [blame] | 354 | if (max_jitter < WARN_JITTER_USEC) { |
| 355 | PJ_LOG(3,(THIS_FILE, |
| 356 | " Jitter: min=%d.%03dms, avg=%d.%03dms, max=%d.%03dms", |
| 357 | min_jitter/1000, min_jitter%1000, |
| 358 | avg_jitter/1000, avg_jitter%1000, |
| 359 | max_jitter/1000, max_jitter%1000)); |
| 360 | } else { |
| 361 | test_data->has_error = 1; |
| 362 | PJ_LOG(2,(THIS_FILE, |
| 363 | " Jitter: min=%d.%03dms, avg=%d.%03dms, max=%d.%03dms", |
| 364 | min_jitter/1000, min_jitter%1000, |
| 365 | avg_jitter/1000, avg_jitter%1000, |
| 366 | max_jitter/1000, max_jitter%1000)); |
| 367 | } |
| 368 | } |
| 369 | |
| 370 | |
| 371 | static int perform_test(const char *title, int dev_id, pjmedia_dir dir, |
| 372 | unsigned clock_rate, unsigned samples_per_frame, |
| 373 | unsigned nchannel, int verbose) |
| 374 | { |
| 375 | pj_status_t status = PJ_SUCCESS; |
| 376 | pjmedia_snd_stream *strm; |
| 377 | struct test_data test_data; |
| 378 | |
| 379 | |
| 380 | /* |
| 381 | * Init test parameters |
| 382 | */ |
Benny Prijono | ac623b3 | 2006-07-03 15:19:31 +0000 | [diff] [blame] | 383 | pj_bzero(&test_data, sizeof(test_data)); |
Benny Prijono | 69d9d19 | 2006-05-21 19:00:28 +0000 | [diff] [blame] | 384 | test_data.dir = dir; |
| 385 | test_data.clock_rate = clock_rate; |
| 386 | test_data.samples_per_frame = samples_per_frame; |
| 387 | test_data.channel_count = nchannel; |
| 388 | |
| 389 | /* |
| 390 | * Open device. |
| 391 | */ |
| 392 | PJ_LOG(3,(THIS_FILE, "Testing %s", title)); |
| 393 | |
| 394 | if (dir == PJMEDIA_DIR_CAPTURE) { |
| 395 | status = pjmedia_snd_open_rec( dev_id, clock_rate, nchannel, |
| 396 | samples_per_frame, 16, &rec_cb, |
| 397 | &test_data, &strm); |
| 398 | } else if (dir == PJMEDIA_DIR_PLAYBACK) { |
| 399 | status = pjmedia_snd_open_player( dev_id, clock_rate, nchannel, |
| 400 | samples_per_frame, 16, &play_cb, |
| 401 | &test_data, &strm); |
| 402 | } else { |
| 403 | status = pjmedia_snd_open( dev_id, dev_id, clock_rate, nchannel, |
| 404 | samples_per_frame, 16, &rec_cb, &play_cb, |
| 405 | &test_data, &strm); |
| 406 | } |
| 407 | |
| 408 | if (status != PJ_SUCCESS) { |
| 409 | app_perror("Unable to open device for capture", status); |
| 410 | return status; |
| 411 | } |
| 412 | |
| 413 | /* Sleep for a while to let sound device "settles" */ |
Benny Prijono | 6a61c22 | 2006-05-22 10:28:44 +0000 | [diff] [blame] | 414 | pj_thread_sleep(200); |
Benny Prijono | 69d9d19 | 2006-05-21 19:00:28 +0000 | [diff] [blame] | 415 | |
| 416 | |
| 417 | /* |
| 418 | * Start the stream. |
| 419 | */ |
| 420 | status = pjmedia_snd_stream_start(strm); |
| 421 | if (status != PJ_SUCCESS) { |
| 422 | app_perror("Unable to start capture stream", status); |
| 423 | return status; |
| 424 | } |
| 425 | |
Benny Prijono | 6a61c22 | 2006-05-22 10:28:44 +0000 | [diff] [blame] | 426 | PJ_LOG(3,(THIS_FILE, |
| 427 | " Please wait while test is in progress (~%d secs)..", |
| 428 | (DURATION+SKIP_DURATION)/1000)); |
| 429 | |
| 430 | /* Let the stream runs for few msec/sec to get stable result. |
Benny Prijono | 69d9d19 | 2006-05-21 19:00:28 +0000 | [diff] [blame] | 431 | * (capture normally begins with frames available simultaneously). |
| 432 | */ |
Benny Prijono | 6a61c22 | 2006-05-22 10:28:44 +0000 | [diff] [blame] | 433 | pj_thread_sleep(SKIP_DURATION); |
Benny Prijono | 69d9d19 | 2006-05-21 19:00:28 +0000 | [diff] [blame] | 434 | |
| 435 | |
| 436 | /* Begin gather data */ |
| 437 | test_data.running = 1; |
| 438 | |
| 439 | /* |
| 440 | * Let the test runs for a while. |
| 441 | */ |
Benny Prijono | 69d9d19 | 2006-05-21 19:00:28 +0000 | [diff] [blame] | 442 | pj_thread_sleep(DURATION); |
| 443 | |
| 444 | |
| 445 | /* |
| 446 | * Close stream. |
| 447 | */ |
| 448 | test_data.running = 0; |
| 449 | pjmedia_snd_stream_close(strm); |
| 450 | |
| 451 | |
| 452 | /* |
| 453 | * Print results. |
| 454 | */ |
| 455 | PJ_LOG(3,(THIS_FILE, " Dumping results:")); |
| 456 | |
| 457 | PJ_LOG(3,(THIS_FILE, " Parameters: clock rate=%dHz, %d samples/frame", |
| 458 | clock_rate, samples_per_frame)); |
| 459 | |
| 460 | if (dir & PJMEDIA_DIR_PLAYBACK) |
| 461 | print_stream_data("Playback", &test_data, &test_data.playback_data, |
| 462 | verbose); |
| 463 | if (dir & PJMEDIA_DIR_CAPTURE) |
| 464 | print_stream_data("Capture", &test_data, &test_data.capture_data, |
| 465 | verbose); |
| 466 | |
| 467 | /* Check drifting */ |
| 468 | if (dir == PJMEDIA_DIR_CAPTURE_PLAYBACK) { |
| 469 | int end_diff, start_diff, drift; |
| 470 | |
| 471 | end_diff = test_data.capture_data.last_timestamp - |
| 472 | test_data.playback_data.last_timestamp; |
| 473 | start_diff = test_data.capture_data.first_timestamp- |
| 474 | test_data.playback_data.first_timestamp; |
| 475 | drift = end_diff - start_diff; |
| 476 | |
| 477 | PJ_LOG(3,(THIS_FILE, " Checking for clock drifts:")); |
| 478 | |
| 479 | /* Allow one frame tolerance for clock drift detection */ |
| 480 | if (drift < (int)samples_per_frame) { |
| 481 | PJ_LOG(3,(THIS_FILE, " No clock drifts is detected")); |
| 482 | } else { |
| 483 | const char *which = (drift<0 ? "slower" : "faster"); |
| 484 | unsigned msec_dur; |
| 485 | |
| 486 | if (drift < 0) drift = -drift; |
| 487 | |
| 488 | |
| 489 | msec_dur = (test_data.capture_data.last_timestamp - |
| 490 | test_data.capture_data.first_timestamp) * 1000 / |
| 491 | test_data.clock_rate; |
| 492 | |
| 493 | PJ_LOG(2,(THIS_FILE, |
| 494 | " Sound capture is %d samples %s than playback " |
Benny Prijono | 6a61c22 | 2006-05-22 10:28:44 +0000 | [diff] [blame] | 495 | "at the end of the test (average is %d samples" |
Benny Prijono | 69d9d19 | 2006-05-21 19:00:28 +0000 | [diff] [blame] | 496 | " per second)", |
| 497 | drift, which, |
| 498 | drift * 1000 / msec_dur)); |
| 499 | |
| 500 | } |
| 501 | } |
| 502 | |
| 503 | if (test_data.has_error == 0) { |
| 504 | PJ_LOG(3,(THIS_FILE, " Test completed, sound device looks okay.")); |
| 505 | return 0; |
| 506 | } else { |
| 507 | PJ_LOG(2,(THIS_FILE, " Test completed with some warnings")); |
| 508 | return 1; |
| 509 | } |
| 510 | } |
| 511 | |
| 512 | |
| 513 | int main(int argc, char *argv[]) |
| 514 | { |
| 515 | pj_caching_pool cp; |
| 516 | pjmedia_endpt *med_endpt; |
| 517 | int id = -1, verbose = 0; |
| 518 | int clock_rate = 8000; |
| 519 | int frame = -1; |
| 520 | int channel = 1; |
| 521 | struct pj_getopt_option long_options[] = { |
| 522 | { "id", 1, 0, 'i' }, |
| 523 | { "rate", 1, 0, 'r' }, |
| 524 | { "frame", 1, 0, 'f' }, |
| 525 | { "channel", 1, 0, 'n' }, |
| 526 | { "verbose", 0, 0, 'v' }, |
| 527 | { "help", 0, 0, 'h' }, |
| 528 | { NULL, 0, 0, 0 } |
| 529 | }; |
| 530 | int c, option_index; |
| 531 | |
| 532 | |
| 533 | pj_status_t status; |
| 534 | |
| 535 | /* Init pjlib */ |
| 536 | status = pj_init(); |
| 537 | PJ_ASSERT_RETURN(status==PJ_SUCCESS, 1); |
| 538 | |
| 539 | /* Must create a pool factory before we can allocate any memory. */ |
| 540 | pj_caching_pool_init(&cp, &pj_pool_factory_default_policy, 0); |
| 541 | |
| 542 | /* |
| 543 | * Initialize media endpoint. |
| 544 | * This will implicitly initialize PJMEDIA too. |
| 545 | */ |
| 546 | status = pjmedia_endpt_create(&cp.factory, NULL, 1, &med_endpt); |
| 547 | PJ_ASSERT_RETURN(status == PJ_SUCCESS, 1); |
| 548 | |
| 549 | /* Print devices */ |
| 550 | enum_devices(); |
| 551 | |
| 552 | /* Parse options */ |
| 553 | pj_optind = 0; |
| 554 | while((c=pj_getopt_long(argc,argv, "i:r:f:n:vh", |
| 555 | long_options, &option_index))!=-1) |
| 556 | { |
| 557 | switch (c) { |
| 558 | case 'i': |
| 559 | id = atoi(pj_optarg); |
| 560 | break; |
| 561 | case 'r': |
| 562 | clock_rate = atoi(pj_optarg); |
| 563 | break; |
| 564 | case 'f': |
| 565 | frame = atoi(pj_optarg); |
| 566 | break; |
| 567 | case 'n': |
| 568 | channel = atoi(pj_optarg); |
| 569 | break; |
| 570 | case 'v': |
| 571 | verbose = 1; |
| 572 | break; |
| 573 | case 'h': |
| 574 | puts(desc); |
| 575 | return 0; |
| 576 | break; |
| 577 | default: |
| 578 | printf("Error: invalid options %s\n", argv[pj_optind-1]); |
| 579 | puts(desc); |
| 580 | return 1; |
| 581 | } |
| 582 | } |
| 583 | |
| 584 | if (pj_optind != argc) { |
| 585 | printf("Error: invalid options\n"); |
| 586 | puts(desc); |
| 587 | return 1; |
| 588 | } |
| 589 | |
| 590 | if (!verbose) |
| 591 | pj_log_set_level(3); |
| 592 | |
| 593 | if (frame == -1) |
| 594 | frame = 10 * clock_rate / 1000; |
| 595 | |
| 596 | |
| 597 | status = perform_test(get_dev_name(id), id, PJMEDIA_DIR_CAPTURE_PLAYBACK, |
| 598 | clock_rate, frame, channel, verbose); |
| 599 | if (status != 0) |
| 600 | return 1; |
| 601 | |
| 602 | |
| 603 | return 0; |
| 604 | } |
| 605 | |
| 606 | |