Alexandre Lision | 8af73cb | 2013-12-10 14:11:20 -0500 | [diff] [blame] | 1 | /* $Id: audiodev.c 4435 2013-03-11 06:32:58Z nanang $ */ |
Tristan Matthews | 0a329cc | 2013-07-17 13:20:14 -0400 | [diff] [blame] | 2 | /* |
| 3 | * Copyright (C) 2008-2011 Teluu Inc. (http://www.teluu.com) |
| 4 | * Copyright (C) 2003-2008 Benny Prijono <benny@prijono.org> |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or modify |
| 7 | * it under the terms of the GNU General Public License as published by |
| 8 | * the Free Software Foundation; either version 2 of the License, or |
| 9 | * (at your option) any later version. |
| 10 | * |
| 11 | * This program is distributed in the hope that it will be useful, |
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 | * GNU General Public License for more details. |
| 15 | * |
| 16 | * You should have received a copy of the GNU General Public License |
| 17 | * along with this program; if not, write to the Free Software |
| 18 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 19 | */ |
| 20 | #include <pjmedia-audiodev/audiodev_imp.h> |
| 21 | #include <pj/assert.h> |
| 22 | #include <pj/errno.h> |
| 23 | #include <pj/log.h> |
| 24 | #include <pj/pool.h> |
| 25 | #include <pj/string.h> |
| 26 | |
| 27 | #define THIS_FILE "audiodev.c" |
| 28 | |
| 29 | #define DEFINE_CAP(name, info) {name, info} |
| 30 | |
| 31 | /* Capability names */ |
| 32 | static struct cap_info |
| 33 | { |
| 34 | const char *name; |
| 35 | const char *info; |
| 36 | } cap_infos[] = |
| 37 | { |
| 38 | DEFINE_CAP("ext-fmt", "Extended/non-PCM format"), |
| 39 | DEFINE_CAP("latency-in", "Input latency/buffer size setting"), |
| 40 | DEFINE_CAP("latency-out", "Output latency/buffer size setting"), |
| 41 | DEFINE_CAP("vol-in", "Input volume setting"), |
| 42 | DEFINE_CAP("vol-out", "Output volume setting"), |
| 43 | DEFINE_CAP("meter-in", "Input meter"), |
| 44 | DEFINE_CAP("meter-out", "Output meter"), |
| 45 | DEFINE_CAP("route-in", "Input routing"), |
| 46 | DEFINE_CAP("route-out", "Output routing"), |
| 47 | DEFINE_CAP("aec", "Accoustic echo cancellation"), |
| 48 | DEFINE_CAP("aec-tail", "Tail length setting for AEC"), |
| 49 | DEFINE_CAP("vad", "Voice activity detection"), |
| 50 | DEFINE_CAP("cng", "Comfort noise generation"), |
| 51 | DEFINE_CAP("plg", "Packet loss concealment") |
| 52 | }; |
| 53 | |
| 54 | |
| 55 | /* |
| 56 | * The device index seen by application and driver is different. |
| 57 | * |
| 58 | * At application level, device index is index to global list of device. |
| 59 | * At driver level, device index is index to device list on that particular |
| 60 | * factory only. |
| 61 | */ |
| 62 | #define MAKE_DEV_ID(f_id, index) (((f_id & 0xFFFF) << 16) | (index & 0xFFFF)) |
| 63 | #define GET_INDEX(dev_id) ((dev_id) & 0xFFFF) |
| 64 | #define GET_FID(dev_id) ((dev_id) >> 16) |
| 65 | #define DEFAULT_DEV_ID 0 |
| 66 | |
| 67 | |
| 68 | /* extern functions to create factories */ |
| 69 | #if PJMEDIA_AUDIO_DEV_HAS_PORTAUDIO |
| 70 | pjmedia_aud_dev_factory* pjmedia_pa_factory(pj_pool_factory *pf); |
| 71 | #endif |
| 72 | |
| 73 | #if PJMEDIA_AUDIO_DEV_HAS_COREAUDIO |
| 74 | pjmedia_aud_dev_factory* pjmedia_coreaudio_factory(pj_pool_factory *pf); |
| 75 | #endif |
| 76 | |
| 77 | #if PJMEDIA_AUDIO_DEV_HAS_ALSA |
| 78 | pjmedia_aud_dev_factory* pjmedia_alsa_factory(pj_pool_factory *pf); |
| 79 | #endif |
| 80 | |
| 81 | #if PJMEDIA_AUDIO_DEV_HAS_OPENSL |
| 82 | pjmedia_aud_dev_factory* pjmedia_opensl_factory(pj_pool_factory *pf); |
| 83 | #endif |
| 84 | |
| 85 | #if PJMEDIA_AUDIO_DEV_HAS_ANDROID_JNI |
| 86 | pjmedia_aud_dev_factory* pjmedia_android_factory(pj_pool_factory *pf); |
| 87 | #endif |
| 88 | |
| 89 | #if PJMEDIA_AUDIO_DEV_HAS_BB10 |
| 90 | pjmedia_aud_dev_factory* pjmedia_bb10_factory(pj_pool_factory *pf); |
| 91 | #endif |
| 92 | |
| 93 | #if PJMEDIA_AUDIO_DEV_HAS_WMME |
| 94 | pjmedia_aud_dev_factory* pjmedia_wmme_factory(pj_pool_factory *pf); |
| 95 | #endif |
| 96 | |
| 97 | #if PJMEDIA_AUDIO_DEV_HAS_BDIMAD |
| 98 | pjmedia_aud_dev_factory* pjmedia_bdimad_factory(pj_pool_factory *pf); |
| 99 | #endif |
| 100 | |
| 101 | #if PJMEDIA_AUDIO_DEV_HAS_SYMB_VAS |
| 102 | pjmedia_aud_dev_factory* pjmedia_symb_vas_factory(pj_pool_factory *pf); |
| 103 | #endif |
| 104 | |
| 105 | #if PJMEDIA_AUDIO_DEV_HAS_SYMB_APS |
| 106 | pjmedia_aud_dev_factory* pjmedia_aps_factory(pj_pool_factory *pf); |
| 107 | #endif |
| 108 | |
| 109 | #if PJMEDIA_AUDIO_DEV_HAS_SYMB_MDA |
| 110 | pjmedia_aud_dev_factory* pjmedia_symb_mda_factory(pj_pool_factory *pf); |
| 111 | #endif |
| 112 | |
| 113 | #if PJMEDIA_AUDIO_DEV_HAS_NULL_AUDIO |
| 114 | pjmedia_aud_dev_factory* pjmedia_null_audio_factory(pj_pool_factory *pf); |
| 115 | #endif |
| 116 | |
| 117 | #define MAX_DRIVERS 16 |
| 118 | #define MAX_DEVS 64 |
| 119 | |
| 120 | |
| 121 | /* driver structure */ |
| 122 | struct driver |
| 123 | { |
| 124 | /* Creation function */ |
| 125 | pjmedia_aud_dev_factory_create_func_ptr create; |
| 126 | /* Factory instance */ |
| 127 | pjmedia_aud_dev_factory *f; |
| 128 | char name[32]; /* Driver name */ |
| 129 | unsigned dev_cnt; /* Number of devices */ |
| 130 | unsigned start_idx; /* Start index in global list */ |
| 131 | int rec_dev_idx;/* Default capture device. */ |
| 132 | int play_dev_idx;/* Default playback device */ |
| 133 | int dev_idx; /* Default device. */ |
| 134 | }; |
| 135 | |
| 136 | /* The audio subsystem */ |
| 137 | static struct aud_subsys |
| 138 | { |
| 139 | unsigned init_count; /* How many times init() is called */ |
| 140 | pj_pool_factory *pf; /* The pool factory. */ |
| 141 | |
| 142 | unsigned drv_cnt; /* Number of drivers. */ |
| 143 | struct driver drv[MAX_DRIVERS]; /* Array of drivers. */ |
| 144 | |
| 145 | unsigned dev_cnt; /* Total number of devices. */ |
| 146 | pj_uint32_t dev_list[MAX_DEVS];/* Array of device IDs. */ |
| 147 | |
| 148 | } aud_subsys; |
| 149 | |
| 150 | /* API: get capability name/info */ |
| 151 | PJ_DEF(const char*) pjmedia_aud_dev_cap_name(pjmedia_aud_dev_cap cap, |
| 152 | const char **p_desc) |
| 153 | { |
| 154 | const char *desc; |
| 155 | unsigned i; |
| 156 | |
| 157 | if (p_desc==NULL) p_desc = &desc; |
| 158 | |
| 159 | for (i=0; i<PJ_ARRAY_SIZE(cap_infos); ++i) { |
| 160 | if ((1 << i)==cap) |
| 161 | break; |
| 162 | } |
| 163 | |
| 164 | if (i==PJ_ARRAY_SIZE(cap_infos)) { |
| 165 | *p_desc = "??"; |
| 166 | return "??"; |
| 167 | } |
| 168 | |
| 169 | *p_desc = cap_infos[i].info; |
| 170 | return cap_infos[i].name; |
| 171 | } |
| 172 | |
| 173 | static pj_status_t get_cap_pointer(const pjmedia_aud_param *param, |
| 174 | pjmedia_aud_dev_cap cap, |
| 175 | void **ptr, |
| 176 | unsigned *size) |
| 177 | { |
| 178 | #define FIELD_INFO(name) *ptr = (void*)¶m->name; \ |
| 179 | *size = sizeof(param->name) |
| 180 | |
| 181 | switch (cap) { |
| 182 | case PJMEDIA_AUD_DEV_CAP_EXT_FORMAT: |
| 183 | FIELD_INFO(ext_fmt); |
| 184 | break; |
| 185 | case PJMEDIA_AUD_DEV_CAP_INPUT_LATENCY: |
| 186 | FIELD_INFO(input_latency_ms); |
| 187 | break; |
| 188 | case PJMEDIA_AUD_DEV_CAP_OUTPUT_LATENCY: |
| 189 | FIELD_INFO(output_latency_ms); |
| 190 | break; |
| 191 | case PJMEDIA_AUD_DEV_CAP_INPUT_VOLUME_SETTING: |
| 192 | FIELD_INFO(input_vol); |
| 193 | break; |
| 194 | case PJMEDIA_AUD_DEV_CAP_OUTPUT_VOLUME_SETTING: |
| 195 | FIELD_INFO(output_vol); |
| 196 | break; |
| 197 | case PJMEDIA_AUD_DEV_CAP_INPUT_ROUTE: |
| 198 | FIELD_INFO(input_route); |
| 199 | break; |
| 200 | case PJMEDIA_AUD_DEV_CAP_OUTPUT_ROUTE: |
| 201 | FIELD_INFO(output_route); |
| 202 | break; |
| 203 | case PJMEDIA_AUD_DEV_CAP_EC: |
| 204 | FIELD_INFO(ec_enabled); |
| 205 | break; |
| 206 | case PJMEDIA_AUD_DEV_CAP_EC_TAIL: |
| 207 | FIELD_INFO(ec_tail_ms); |
| 208 | break; |
| 209 | /* vad is no longer in "fmt" in 2.0. |
| 210 | case PJMEDIA_AUD_DEV_CAP_VAD: |
| 211 | FIELD_INFO(ext_fmt.vad); |
| 212 | break; |
| 213 | */ |
| 214 | case PJMEDIA_AUD_DEV_CAP_CNG: |
| 215 | FIELD_INFO(cng_enabled); |
| 216 | break; |
| 217 | case PJMEDIA_AUD_DEV_CAP_PLC: |
| 218 | FIELD_INFO(plc_enabled); |
| 219 | break; |
| 220 | default: |
| 221 | return PJMEDIA_EAUD_INVCAP; |
| 222 | } |
| 223 | |
| 224 | #undef FIELD_INFO |
| 225 | |
| 226 | return PJ_SUCCESS; |
| 227 | } |
| 228 | |
| 229 | /* API: set cap value to param */ |
| 230 | PJ_DEF(pj_status_t) pjmedia_aud_param_set_cap( pjmedia_aud_param *param, |
| 231 | pjmedia_aud_dev_cap cap, |
| 232 | const void *pval) |
| 233 | { |
| 234 | void *cap_ptr; |
| 235 | unsigned cap_size; |
| 236 | pj_status_t status; |
| 237 | |
| 238 | status = get_cap_pointer(param, cap, &cap_ptr, &cap_size); |
| 239 | if (status != PJ_SUCCESS) |
| 240 | return status; |
| 241 | |
| 242 | pj_memcpy(cap_ptr, pval, cap_size); |
| 243 | param->flags |= cap; |
| 244 | |
| 245 | return PJ_SUCCESS; |
| 246 | } |
| 247 | |
| 248 | /* API: get cap value from param */ |
| 249 | PJ_DEF(pj_status_t) pjmedia_aud_param_get_cap( const pjmedia_aud_param *param, |
| 250 | pjmedia_aud_dev_cap cap, |
| 251 | void *pval) |
| 252 | { |
| 253 | void *cap_ptr; |
| 254 | unsigned cap_size; |
| 255 | pj_status_t status; |
| 256 | |
| 257 | status = get_cap_pointer(param, cap, &cap_ptr, &cap_size); |
| 258 | if (status != PJ_SUCCESS) |
| 259 | return status; |
| 260 | |
| 261 | if ((param->flags & cap) == 0) { |
| 262 | pj_bzero(cap_ptr, cap_size); |
| 263 | return PJMEDIA_EAUD_INVCAP; |
| 264 | } |
| 265 | |
| 266 | pj_memcpy(pval, cap_ptr, cap_size); |
| 267 | return PJ_SUCCESS; |
| 268 | } |
| 269 | |
| 270 | /* Internal: init driver */ |
| 271 | static pj_status_t init_driver(unsigned drv_idx, pj_bool_t refresh) |
| 272 | { |
| 273 | struct driver *drv = &aud_subsys.drv[drv_idx]; |
| 274 | pjmedia_aud_dev_factory *f; |
| 275 | unsigned i, dev_cnt; |
| 276 | pj_status_t status; |
| 277 | |
| 278 | if (!refresh) { |
| 279 | /* Create the factory */ |
| 280 | f = (*drv->create)(aud_subsys.pf); |
| 281 | if (!f) |
| 282 | return PJ_EUNKNOWN; |
| 283 | |
| 284 | /* Call factory->init() */ |
| 285 | status = f->op->init(f); |
| 286 | if (status != PJ_SUCCESS) { |
| 287 | f->op->destroy(f); |
| 288 | return status; |
| 289 | } |
| 290 | } else { |
| 291 | f = drv->f; |
| 292 | } |
| 293 | |
| 294 | /* Get number of devices */ |
| 295 | dev_cnt = f->op->get_dev_count(f); |
| 296 | if (dev_cnt + aud_subsys.dev_cnt > MAX_DEVS) { |
| 297 | PJ_LOG(4,(THIS_FILE, "%d device(s) cannot be registered because" |
| 298 | " there are too many devices", |
| 299 | aud_subsys.dev_cnt + dev_cnt - MAX_DEVS)); |
| 300 | dev_cnt = MAX_DEVS - aud_subsys.dev_cnt; |
| 301 | } |
| 302 | |
| 303 | /* enabling this will cause pjsua-lib initialization to fail when there |
| 304 | * is no sound device installed in the system, even when pjsua has been |
| 305 | * run with --null-audio |
| 306 | * |
| 307 | if (dev_cnt == 0) { |
| 308 | f->op->destroy(f); |
| 309 | return PJMEDIA_EAUD_NODEV; |
| 310 | } |
| 311 | */ |
| 312 | |
| 313 | /* Fill in default devices */ |
| 314 | drv->play_dev_idx = drv->rec_dev_idx = drv->dev_idx = -1; |
| 315 | for (i=0; i<dev_cnt; ++i) { |
| 316 | pjmedia_aud_dev_info info; |
| 317 | |
| 318 | status = f->op->get_dev_info(f, i, &info); |
| 319 | if (status != PJ_SUCCESS) { |
| 320 | f->op->destroy(f); |
| 321 | return status; |
| 322 | } |
| 323 | |
| 324 | if (drv->name[0]=='\0') { |
| 325 | /* Set driver name */ |
| 326 | pj_ansi_strncpy(drv->name, info.driver, sizeof(drv->name)); |
| 327 | drv->name[sizeof(drv->name)-1] = '\0'; |
| 328 | } |
| 329 | |
| 330 | if (drv->play_dev_idx < 0 && info.output_count) { |
| 331 | /* Set default playback device */ |
| 332 | drv->play_dev_idx = i; |
| 333 | } |
| 334 | if (drv->rec_dev_idx < 0 && info.input_count) { |
| 335 | /* Set default capture device */ |
| 336 | drv->rec_dev_idx = i; |
| 337 | } |
| 338 | if (drv->dev_idx < 0 && info.input_count && |
| 339 | info.output_count) |
| 340 | { |
| 341 | /* Set default capture and playback device */ |
| 342 | drv->dev_idx = i; |
| 343 | } |
| 344 | |
| 345 | if (drv->play_dev_idx >= 0 && drv->rec_dev_idx >= 0 && |
| 346 | drv->dev_idx >= 0) |
| 347 | { |
| 348 | /* Done. */ |
| 349 | break; |
| 350 | } |
| 351 | } |
| 352 | |
| 353 | /* Register the factory */ |
| 354 | drv->f = f; |
| 355 | drv->f->sys.drv_idx = drv_idx; |
| 356 | drv->start_idx = aud_subsys.dev_cnt; |
| 357 | drv->dev_cnt = dev_cnt; |
| 358 | |
| 359 | /* Register devices to global list */ |
| 360 | for (i=0; i<dev_cnt; ++i) { |
| 361 | aud_subsys.dev_list[aud_subsys.dev_cnt++] = MAKE_DEV_ID(drv_idx, i); |
| 362 | } |
| 363 | |
| 364 | return PJ_SUCCESS; |
| 365 | } |
| 366 | |
| 367 | /* Internal: deinit driver */ |
| 368 | static void deinit_driver(unsigned drv_idx) |
| 369 | { |
| 370 | struct driver *drv = &aud_subsys.drv[drv_idx]; |
| 371 | |
| 372 | if (drv->f) { |
| 373 | drv->f->op->destroy(drv->f); |
| 374 | drv->f = NULL; |
| 375 | } |
| 376 | |
| 377 | drv->dev_cnt = 0; |
| 378 | drv->play_dev_idx = drv->rec_dev_idx = drv->dev_idx = -1; |
| 379 | } |
| 380 | |
| 381 | /* API: Initialize the audio subsystem. */ |
| 382 | PJ_DEF(pj_status_t) pjmedia_aud_subsys_init(pj_pool_factory *pf) |
| 383 | { |
| 384 | unsigned i; |
| 385 | pj_status_t status; |
| 386 | |
| 387 | /* Allow init() to be called multiple times as long as there is matching |
| 388 | * number of shutdown(). |
| 389 | */ |
| 390 | if (aud_subsys.init_count++ != 0) { |
| 391 | return PJ_SUCCESS; |
| 392 | } |
| 393 | |
| 394 | /* Register error subsystem */ |
| 395 | status = pj_register_strerror(PJMEDIA_AUDIODEV_ERRNO_START, |
| 396 | PJ_ERRNO_SPACE_SIZE, |
| 397 | &pjmedia_audiodev_strerror); |
| 398 | pj_assert(status == PJ_SUCCESS); |
| 399 | |
| 400 | /* Init */ |
| 401 | aud_subsys.pf = pf; |
| 402 | aud_subsys.drv_cnt = 0; |
| 403 | aud_subsys.dev_cnt = 0; |
| 404 | |
| 405 | /* Register creation functions */ |
| 406 | #if PJMEDIA_AUDIO_DEV_HAS_OPENSL |
| 407 | aud_subsys.drv[aud_subsys.drv_cnt++].create = &pjmedia_opensl_factory; |
| 408 | #endif |
| 409 | #if PJMEDIA_AUDIO_DEV_HAS_ANDROID_JNI |
| 410 | aud_subsys.drv[aud_subsys.drv_cnt++].create = &pjmedia_android_factory; |
| 411 | #endif |
| 412 | #if PJMEDIA_AUDIO_DEV_HAS_BB10 |
| 413 | aud_subsys.drv[aud_subsys.drv_cnt++].create = &pjmedia_bb10_factory; |
| 414 | #endif |
| 415 | #if PJMEDIA_AUDIO_DEV_HAS_ALSA |
| 416 | aud_subsys.drv[aud_subsys.drv_cnt++].create = &pjmedia_alsa_factory; |
| 417 | #endif |
| 418 | #if PJMEDIA_AUDIO_DEV_HAS_COREAUDIO |
| 419 | aud_subsys.drv[aud_subsys.drv_cnt++].create = &pjmedia_coreaudio_factory; |
| 420 | #endif |
| 421 | #if PJMEDIA_AUDIO_DEV_HAS_PORTAUDIO |
| 422 | aud_subsys.drv[aud_subsys.drv_cnt++].create = &pjmedia_pa_factory; |
| 423 | #endif |
| 424 | #if PJMEDIA_AUDIO_DEV_HAS_WMME |
| 425 | aud_subsys.drv[aud_subsys.drv_cnt++].create = &pjmedia_wmme_factory; |
| 426 | #endif |
| 427 | #if PJMEDIA_AUDIO_DEV_HAS_BDIMAD |
| 428 | aud_subsys.drv[aud_subsys.drv_cnt++].create = &pjmedia_bdimad_factory; |
| 429 | #endif |
| 430 | #if PJMEDIA_AUDIO_DEV_HAS_SYMB_VAS |
| 431 | aud_subsys.drv[aud_subsys.drv_cnt++].create = &pjmedia_symb_vas_factory; |
| 432 | #endif |
| 433 | #if PJMEDIA_AUDIO_DEV_HAS_SYMB_APS |
| 434 | aud_subsys.drv[aud_subsys.drv_cnt++].create = &pjmedia_aps_factory; |
| 435 | #endif |
| 436 | #if PJMEDIA_AUDIO_DEV_HAS_SYMB_MDA |
| 437 | aud_subsys.drv[aud_subsys.drv_cnt++].create = &pjmedia_symb_mda_factory; |
| 438 | #endif |
| 439 | #if PJMEDIA_AUDIO_DEV_HAS_NULL_AUDIO |
| 440 | aud_subsys.drv[aud_subsys.drv_cnt++].create = &pjmedia_null_audio_factory; |
| 441 | #endif |
| 442 | |
| 443 | /* Initialize each factory and build the device ID list */ |
| 444 | for (i=0; i<aud_subsys.drv_cnt; ++i) { |
| 445 | status = init_driver(i, PJ_FALSE); |
| 446 | if (status != PJ_SUCCESS) { |
| 447 | deinit_driver(i); |
| 448 | continue; |
| 449 | } |
| 450 | } |
| 451 | |
| 452 | return aud_subsys.dev_cnt ? PJ_SUCCESS : status; |
| 453 | } |
| 454 | |
| 455 | /* API: register an audio device factory to the audio subsystem. */ |
| 456 | PJ_DEF(pj_status_t) |
| 457 | pjmedia_aud_register_factory(pjmedia_aud_dev_factory_create_func_ptr adf) |
| 458 | { |
| 459 | pj_status_t status; |
| 460 | |
| 461 | if (aud_subsys.init_count == 0) |
| 462 | return PJMEDIA_EAUD_INIT; |
| 463 | |
| 464 | aud_subsys.drv[aud_subsys.drv_cnt].create = adf; |
| 465 | status = init_driver(aud_subsys.drv_cnt, PJ_FALSE); |
| 466 | if (status == PJ_SUCCESS) { |
| 467 | aud_subsys.drv_cnt++; |
| 468 | } else { |
| 469 | deinit_driver(aud_subsys.drv_cnt); |
| 470 | } |
| 471 | |
| 472 | return status; |
| 473 | } |
| 474 | |
| 475 | /* API: unregister an audio device factory from the audio subsystem. */ |
| 476 | PJ_DEF(pj_status_t) |
| 477 | pjmedia_aud_unregister_factory(pjmedia_aud_dev_factory_create_func_ptr adf) |
| 478 | { |
| 479 | unsigned i, j; |
| 480 | |
| 481 | if (aud_subsys.init_count == 0) |
| 482 | return PJMEDIA_EAUD_INIT; |
| 483 | |
| 484 | for (i=0; i<aud_subsys.drv_cnt; ++i) { |
| 485 | struct driver *drv = &aud_subsys.drv[i]; |
| 486 | |
| 487 | if (drv->create == adf) { |
| 488 | for (j = drv->start_idx; j < drv->start_idx + drv->dev_cnt; j++) |
| 489 | { |
| 490 | aud_subsys.dev_list[j] = (pj_uint32_t)PJMEDIA_AUD_INVALID_DEV; |
| 491 | } |
| 492 | |
| 493 | deinit_driver(i); |
| 494 | pj_bzero(drv, sizeof(*drv)); |
| 495 | return PJ_SUCCESS; |
| 496 | } |
| 497 | } |
| 498 | |
| 499 | return PJMEDIA_EAUD_ERR; |
| 500 | } |
| 501 | |
| 502 | /* API: get the pool factory registered to the audio subsystem. */ |
| 503 | PJ_DEF(pj_pool_factory*) pjmedia_aud_subsys_get_pool_factory(void) |
| 504 | { |
| 505 | return aud_subsys.pf; |
| 506 | } |
| 507 | |
| 508 | /* API: Shutdown the audio subsystem. */ |
| 509 | PJ_DEF(pj_status_t) pjmedia_aud_subsys_shutdown(void) |
| 510 | { |
| 511 | unsigned i; |
| 512 | |
| 513 | /* Allow shutdown() to be called multiple times as long as there is matching |
| 514 | * number of init(). |
| 515 | */ |
| 516 | if (aud_subsys.init_count == 0) { |
| 517 | return PJ_SUCCESS; |
| 518 | } |
| 519 | --aud_subsys.init_count; |
| 520 | |
| 521 | if (aud_subsys.init_count == 0) { |
| 522 | for (i=0; i<aud_subsys.drv_cnt; ++i) { |
| 523 | deinit_driver(i); |
| 524 | } |
| 525 | |
| 526 | aud_subsys.pf = NULL; |
| 527 | } |
| 528 | return PJ_SUCCESS; |
| 529 | } |
| 530 | |
| 531 | /* API: Refresh the list of sound devices installed in the system. */ |
| 532 | PJ_DEF(pj_status_t) pjmedia_aud_dev_refresh(void) |
| 533 | { |
| 534 | unsigned i; |
| 535 | |
| 536 | aud_subsys.dev_cnt = 0; |
| 537 | for (i=0; i<aud_subsys.drv_cnt; ++i) { |
| 538 | struct driver *drv = &aud_subsys.drv[i]; |
| 539 | |
| 540 | if (drv->f && drv->f->op->refresh) { |
| 541 | pj_status_t status = drv->f->op->refresh(drv->f); |
| 542 | if (status != PJ_SUCCESS) { |
| 543 | PJ_PERROR(4, (THIS_FILE, status, "Unable to refresh device " |
| 544 | "list for %s", drv->name)); |
| 545 | } |
| 546 | } |
| 547 | init_driver(i, PJ_TRUE); |
| 548 | } |
| 549 | return PJ_SUCCESS; |
| 550 | } |
| 551 | |
| 552 | /* API: Get the number of sound devices installed in the system. */ |
| 553 | PJ_DEF(unsigned) pjmedia_aud_dev_count(void) |
| 554 | { |
| 555 | return aud_subsys.dev_cnt; |
| 556 | } |
| 557 | |
| 558 | /* Internal: convert local index to global device index */ |
| 559 | static pj_status_t make_global_index(unsigned drv_idx, |
| 560 | pjmedia_aud_dev_index *id) |
| 561 | { |
| 562 | if (*id < 0) { |
| 563 | return PJ_SUCCESS; |
| 564 | } |
| 565 | |
| 566 | /* Check that factory still exists */ |
| 567 | PJ_ASSERT_RETURN(aud_subsys.drv[drv_idx].f, PJ_EBUG); |
| 568 | |
| 569 | /* Check that device index is valid */ |
| 570 | PJ_ASSERT_RETURN(*id>=0 && *id<(int)aud_subsys.drv[drv_idx].dev_cnt, |
| 571 | PJ_EBUG); |
| 572 | |
| 573 | *id += aud_subsys.drv[drv_idx].start_idx; |
| 574 | return PJ_SUCCESS; |
| 575 | } |
| 576 | |
| 577 | /* Internal: lookup device id */ |
| 578 | static pj_status_t lookup_dev(pjmedia_aud_dev_index id, |
| 579 | pjmedia_aud_dev_factory **p_f, |
| 580 | unsigned *p_local_index) |
| 581 | { |
| 582 | int f_id, index; |
| 583 | |
| 584 | if (id < 0) { |
| 585 | unsigned i; |
| 586 | |
| 587 | if (id == PJMEDIA_AUD_INVALID_DEV) |
| 588 | return PJMEDIA_EAUD_INVDEV; |
| 589 | |
| 590 | for (i=0; i<aud_subsys.drv_cnt; ++i) { |
| 591 | struct driver *drv = &aud_subsys.drv[i]; |
| 592 | if (drv->dev_idx >= 0) { |
| 593 | id = drv->dev_idx; |
| 594 | make_global_index(i, &id); |
| 595 | break; |
| 596 | } else if (id==PJMEDIA_AUD_DEFAULT_CAPTURE_DEV && |
| 597 | drv->rec_dev_idx >= 0) |
| 598 | { |
| 599 | id = drv->rec_dev_idx; |
| 600 | make_global_index(i, &id); |
| 601 | break; |
| 602 | } else if (id==PJMEDIA_AUD_DEFAULT_PLAYBACK_DEV && |
| 603 | drv->play_dev_idx >= 0) |
| 604 | { |
| 605 | id = drv->play_dev_idx; |
| 606 | make_global_index(i, &id); |
| 607 | break; |
| 608 | } |
| 609 | } |
| 610 | |
| 611 | if (id < 0) { |
| 612 | return PJMEDIA_EAUD_NODEFDEV; |
| 613 | } |
| 614 | } |
| 615 | |
| 616 | f_id = GET_FID(aud_subsys.dev_list[id]); |
| 617 | index = GET_INDEX(aud_subsys.dev_list[id]); |
| 618 | |
| 619 | if (f_id < 0 || f_id >= (int)aud_subsys.drv_cnt) |
| 620 | return PJMEDIA_EAUD_INVDEV; |
| 621 | |
| 622 | if (index < 0 || index >= (int)aud_subsys.drv[f_id].dev_cnt) |
| 623 | return PJMEDIA_EAUD_INVDEV; |
| 624 | |
| 625 | *p_f = aud_subsys.drv[f_id].f; |
| 626 | *p_local_index = (unsigned)index; |
| 627 | |
| 628 | return PJ_SUCCESS; |
| 629 | |
| 630 | } |
| 631 | |
| 632 | /* API: Get device information. */ |
| 633 | PJ_DEF(pj_status_t) pjmedia_aud_dev_get_info(pjmedia_aud_dev_index id, |
| 634 | pjmedia_aud_dev_info *info) |
| 635 | { |
| 636 | pjmedia_aud_dev_factory *f; |
| 637 | unsigned index; |
| 638 | pj_status_t status; |
| 639 | |
| 640 | PJ_ASSERT_RETURN(info && id!=PJMEDIA_AUD_INVALID_DEV, PJ_EINVAL); |
| 641 | PJ_ASSERT_RETURN(aud_subsys.pf, PJMEDIA_EAUD_INIT); |
| 642 | |
| 643 | status = lookup_dev(id, &f, &index); |
| 644 | if (status != PJ_SUCCESS) |
| 645 | return status; |
| 646 | |
| 647 | return f->op->get_dev_info(f, index, info); |
| 648 | } |
| 649 | |
| 650 | /* API: find device */ |
| 651 | PJ_DEF(pj_status_t) pjmedia_aud_dev_lookup( const char *drv_name, |
| 652 | const char *dev_name, |
| 653 | pjmedia_aud_dev_index *id) |
| 654 | { |
| 655 | pjmedia_aud_dev_factory *f = NULL; |
| 656 | unsigned drv_idx, dev_idx; |
| 657 | |
| 658 | PJ_ASSERT_RETURN(drv_name && dev_name && id, PJ_EINVAL); |
| 659 | PJ_ASSERT_RETURN(aud_subsys.pf, PJMEDIA_EAUD_INIT); |
| 660 | |
| 661 | for (drv_idx=0; drv_idx<aud_subsys.drv_cnt; ++drv_idx) { |
| 662 | if (!pj_ansi_stricmp(drv_name, aud_subsys.drv[drv_idx].name)) { |
| 663 | f = aud_subsys.drv[drv_idx].f; |
| 664 | break; |
| 665 | } |
| 666 | } |
| 667 | |
| 668 | if (!f) |
| 669 | return PJ_ENOTFOUND; |
| 670 | |
| 671 | for (dev_idx=0; dev_idx<aud_subsys.drv[drv_idx].dev_cnt; ++dev_idx) { |
| 672 | pjmedia_aud_dev_info info; |
| 673 | pj_status_t status; |
| 674 | |
| 675 | status = f->op->get_dev_info(f, dev_idx, &info); |
| 676 | if (status != PJ_SUCCESS) |
| 677 | return status; |
| 678 | |
| 679 | if (!pj_ansi_stricmp(dev_name, info.name)) |
| 680 | break; |
| 681 | } |
| 682 | |
| 683 | if (dev_idx==aud_subsys.drv[drv_idx].dev_cnt) |
| 684 | return PJ_ENOTFOUND; |
| 685 | |
| 686 | *id = dev_idx; |
| 687 | make_global_index(drv_idx, id); |
| 688 | |
| 689 | return PJ_SUCCESS; |
| 690 | } |
| 691 | |
| 692 | /* API: Initialize the audio device parameters with default values for the |
| 693 | * specified device. |
| 694 | */ |
| 695 | PJ_DEF(pj_status_t) pjmedia_aud_dev_default_param(pjmedia_aud_dev_index id, |
| 696 | pjmedia_aud_param *param) |
| 697 | { |
| 698 | pjmedia_aud_dev_factory *f; |
| 699 | unsigned index; |
| 700 | pj_status_t status; |
| 701 | |
| 702 | PJ_ASSERT_RETURN(param && id!=PJMEDIA_AUD_INVALID_DEV, PJ_EINVAL); |
| 703 | PJ_ASSERT_RETURN(aud_subsys.pf, PJMEDIA_EAUD_INIT); |
| 704 | |
| 705 | status = lookup_dev(id, &f, &index); |
| 706 | if (status != PJ_SUCCESS) |
| 707 | return status; |
| 708 | |
| 709 | status = f->op->default_param(f, index, param); |
| 710 | if (status != PJ_SUCCESS) |
| 711 | return status; |
| 712 | |
| 713 | /* Normalize device IDs */ |
| 714 | make_global_index(f->sys.drv_idx, ¶m->rec_id); |
| 715 | make_global_index(f->sys.drv_idx, ¶m->play_id); |
| 716 | |
| 717 | return PJ_SUCCESS; |
| 718 | } |
| 719 | |
| 720 | /* API: Open audio stream object using the specified parameters. */ |
| 721 | PJ_DEF(pj_status_t) pjmedia_aud_stream_create(const pjmedia_aud_param *prm, |
| 722 | pjmedia_aud_rec_cb rec_cb, |
| 723 | pjmedia_aud_play_cb play_cb, |
| 724 | void *user_data, |
| 725 | pjmedia_aud_stream **p_aud_strm) |
| 726 | { |
| 727 | pjmedia_aud_dev_factory *rec_f=NULL, *play_f=NULL, *f=NULL; |
| 728 | pjmedia_aud_param param; |
| 729 | pj_status_t status; |
| 730 | |
| 731 | PJ_ASSERT_RETURN(prm && prm->dir && p_aud_strm, PJ_EINVAL); |
| 732 | PJ_ASSERT_RETURN(aud_subsys.pf, PJMEDIA_EAUD_INIT); |
| 733 | PJ_ASSERT_RETURN(prm->dir==PJMEDIA_DIR_CAPTURE || |
| 734 | prm->dir==PJMEDIA_DIR_PLAYBACK || |
| 735 | prm->dir==PJMEDIA_DIR_CAPTURE_PLAYBACK, |
| 736 | PJ_EINVAL); |
| 737 | |
| 738 | /* Must make copy of param because we're changing device ID */ |
| 739 | pj_memcpy(¶m, prm, sizeof(param)); |
| 740 | |
| 741 | /* Normalize rec_id */ |
| 742 | if (param.dir & PJMEDIA_DIR_CAPTURE) { |
| 743 | unsigned index; |
| 744 | |
| 745 | if (param.rec_id < 0) |
| 746 | param.rec_id = PJMEDIA_AUD_DEFAULT_CAPTURE_DEV; |
| 747 | |
| 748 | status = lookup_dev(param.rec_id, &rec_f, &index); |
| 749 | if (status != PJ_SUCCESS) |
| 750 | return status; |
| 751 | |
| 752 | param.rec_id = index; |
| 753 | f = rec_f; |
| 754 | } |
| 755 | |
| 756 | /* Normalize play_id */ |
| 757 | if (param.dir & PJMEDIA_DIR_PLAYBACK) { |
| 758 | unsigned index; |
| 759 | |
| 760 | if (param.play_id < 0) |
| 761 | param.play_id = PJMEDIA_AUD_DEFAULT_PLAYBACK_DEV; |
| 762 | |
| 763 | status = lookup_dev(param.play_id, &play_f, &index); |
| 764 | if (status != PJ_SUCCESS) |
| 765 | return status; |
| 766 | |
| 767 | param.play_id = index; |
| 768 | f = play_f; |
| 769 | } |
| 770 | |
| 771 | PJ_ASSERT_RETURN(f != NULL, PJ_EBUG); |
| 772 | |
| 773 | /* For now, rec_id and play_id must belong to the same factory */ |
| 774 | PJ_ASSERT_RETURN((param.dir != PJMEDIA_DIR_CAPTURE_PLAYBACK) || |
| 775 | (rec_f == play_f), |
| 776 | PJMEDIA_EAUD_INVDEV); |
| 777 | |
| 778 | /* Create the stream */ |
| 779 | status = f->op->create_stream(f, ¶m, rec_cb, play_cb, |
| 780 | user_data, p_aud_strm); |
| 781 | if (status != PJ_SUCCESS) |
| 782 | return status; |
| 783 | |
| 784 | /* Assign factory id to the stream */ |
| 785 | (*p_aud_strm)->sys.drv_idx = f->sys.drv_idx; |
| 786 | return PJ_SUCCESS; |
| 787 | } |
| 788 | |
| 789 | /* API: Get the running parameters for the specified audio stream. */ |
| 790 | PJ_DEF(pj_status_t) pjmedia_aud_stream_get_param(pjmedia_aud_stream *strm, |
| 791 | pjmedia_aud_param *param) |
| 792 | { |
| 793 | pj_status_t status; |
| 794 | |
| 795 | PJ_ASSERT_RETURN(strm && param, PJ_EINVAL); |
| 796 | PJ_ASSERT_RETURN(aud_subsys.pf, PJMEDIA_EAUD_INIT); |
| 797 | |
| 798 | status = strm->op->get_param(strm, param); |
| 799 | if (status != PJ_SUCCESS) |
| 800 | return status; |
| 801 | |
| 802 | /* Normalize device id's */ |
| 803 | make_global_index(strm->sys.drv_idx, ¶m->rec_id); |
| 804 | make_global_index(strm->sys.drv_idx, ¶m->play_id); |
| 805 | |
| 806 | return PJ_SUCCESS; |
| 807 | } |
| 808 | |
| 809 | /* API: Get the value of a specific capability of the audio stream. */ |
| 810 | PJ_DEF(pj_status_t) pjmedia_aud_stream_get_cap(pjmedia_aud_stream *strm, |
| 811 | pjmedia_aud_dev_cap cap, |
| 812 | void *value) |
| 813 | { |
| 814 | return strm->op->get_cap(strm, cap, value); |
| 815 | } |
| 816 | |
| 817 | /* API: Set the value of a specific capability of the audio stream. */ |
| 818 | PJ_DEF(pj_status_t) pjmedia_aud_stream_set_cap(pjmedia_aud_stream *strm, |
| 819 | pjmedia_aud_dev_cap cap, |
| 820 | const void *value) |
| 821 | { |
| 822 | return strm->op->set_cap(strm, cap, value); |
| 823 | } |
| 824 | |
| 825 | /* API: Start the stream. */ |
| 826 | PJ_DEF(pj_status_t) pjmedia_aud_stream_start(pjmedia_aud_stream *strm) |
| 827 | { |
| 828 | return strm->op->start(strm); |
| 829 | } |
| 830 | |
| 831 | /* API: Stop the stream. */ |
| 832 | PJ_DEF(pj_status_t) pjmedia_aud_stream_stop(pjmedia_aud_stream *strm) |
| 833 | { |
| 834 | return strm->op->stop(strm); |
| 835 | } |
| 836 | |
| 837 | /* API: Destroy the stream. */ |
| 838 | PJ_DEF(pj_status_t) pjmedia_aud_stream_destroy(pjmedia_aud_stream *strm) |
| 839 | { |
| 840 | return strm->op->destroy(strm); |
| 841 | } |
| 842 | |
| 843 | |