Tristan Matthews | 0a329cc | 2013-07-17 13:20:14 -0400 | [diff] [blame] | 1 | /* $Id$ */ |
| 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/codec.h> |
| 21 | #include <pjmedia/errno.h> |
| 22 | #include <pj/array.h> |
| 23 | #include <pj/assert.h> |
| 24 | #include <pj/log.h> |
| 25 | #include <pj/string.h> |
| 26 | |
| 27 | #define THIS_FILE "codec.c" |
| 28 | |
| 29 | |
| 30 | |
| 31 | /* Definition of default codecs parameters */ |
| 32 | struct pjmedia_codec_default_param |
| 33 | { |
| 34 | pj_pool_t *pool; |
| 35 | pjmedia_codec_param *param; |
| 36 | }; |
| 37 | |
| 38 | |
| 39 | /* Sort codecs in codec manager based on priorities */ |
| 40 | static void sort_codecs(pjmedia_codec_mgr *mgr); |
| 41 | |
| 42 | |
| 43 | /* |
| 44 | * Duplicate codec parameter. |
| 45 | */ |
| 46 | PJ_DEF(pjmedia_codec_param*) pjmedia_codec_param_clone( |
| 47 | pj_pool_t *pool, |
| 48 | const pjmedia_codec_param *src) |
| 49 | { |
| 50 | pjmedia_codec_param *p; |
| 51 | unsigned i; |
| 52 | |
| 53 | PJ_ASSERT_RETURN(pool && src, NULL); |
| 54 | |
| 55 | p = PJ_POOL_ZALLOC_T(pool, pjmedia_codec_param); |
| 56 | |
| 57 | /* Update codec param */ |
| 58 | pj_memcpy(p, src, sizeof(pjmedia_codec_param)); |
| 59 | for (i = 0; i < src->setting.dec_fmtp.cnt; ++i) { |
| 60 | pj_strdup(pool, &p->setting.dec_fmtp.param[i].name, |
| 61 | &src->setting.dec_fmtp.param[i].name); |
| 62 | pj_strdup(pool, &p->setting.dec_fmtp.param[i].val, |
| 63 | &src->setting.dec_fmtp.param[i].val); |
| 64 | } |
| 65 | for (i = 0; i < src->setting.enc_fmtp.cnt; ++i) { |
| 66 | pj_strdup(pool, &p->setting.enc_fmtp.param[i].name, |
| 67 | &src->setting.enc_fmtp.param[i].name); |
| 68 | pj_strdup(pool, &p->setting.enc_fmtp.param[i].val, |
| 69 | &src->setting.enc_fmtp.param[i].val); |
| 70 | } |
| 71 | |
| 72 | return p; |
| 73 | } |
| 74 | |
| 75 | |
| 76 | /* |
| 77 | * Initialize codec manager. |
| 78 | */ |
| 79 | PJ_DEF(pj_status_t) pjmedia_codec_mgr_init (pjmedia_codec_mgr *mgr, |
| 80 | pj_pool_factory *pf) |
| 81 | { |
| 82 | pj_status_t status; |
| 83 | |
| 84 | PJ_ASSERT_RETURN(mgr && pf, PJ_EINVAL); |
| 85 | |
| 86 | /* Init codec manager */ |
| 87 | pj_bzero(mgr, sizeof(pjmedia_codec_mgr)); |
| 88 | mgr->pf = pf; |
| 89 | pj_list_init (&mgr->factory_list); |
| 90 | mgr->codec_cnt = 0; |
| 91 | |
| 92 | /* Create pool */ |
| 93 | mgr->pool = pj_pool_create(mgr->pf, "codec-mgr", 256, 256, NULL); |
| 94 | |
| 95 | /* Create mutex */ |
| 96 | status = pj_mutex_create_recursive(mgr->pool, "codec-mgr", &mgr->mutex); |
| 97 | if (status != PJ_SUCCESS) |
| 98 | return status; |
| 99 | |
| 100 | return PJ_SUCCESS; |
| 101 | } |
| 102 | |
| 103 | /* |
| 104 | * Initialize codec manager. |
| 105 | */ |
| 106 | PJ_DEF(pj_status_t) pjmedia_codec_mgr_destroy (pjmedia_codec_mgr *mgr) |
| 107 | { |
| 108 | pjmedia_codec_factory *factory; |
| 109 | unsigned i; |
| 110 | |
| 111 | PJ_ASSERT_RETURN(mgr, PJ_EINVAL); |
| 112 | |
| 113 | /* Destroy all factories in the list */ |
| 114 | factory = mgr->factory_list.next; |
| 115 | while (factory != &mgr->factory_list) { |
| 116 | pjmedia_codec_factory *next = factory->next; |
| 117 | (*factory->op->destroy)(); |
| 118 | factory = next; |
| 119 | } |
| 120 | |
| 121 | /* Cleanup all pools of all codec default params */ |
| 122 | for (i=0; i<mgr->codec_cnt; ++i) { |
| 123 | if (mgr->codec_desc[i].param) { |
| 124 | pj_assert(mgr->codec_desc[i].param->pool); |
| 125 | pj_pool_release(mgr->codec_desc[i].param->pool); |
| 126 | } |
| 127 | } |
| 128 | |
| 129 | /* Destroy mutex */ |
| 130 | if (mgr->mutex) |
| 131 | pj_mutex_destroy(mgr->mutex); |
| 132 | |
| 133 | /* Release pool */ |
| 134 | if (mgr->pool) |
| 135 | pj_pool_release(mgr->pool); |
| 136 | |
| 137 | /* Just for safety, set codec manager states to zero */ |
| 138 | pj_bzero(mgr, sizeof(pjmedia_codec_mgr)); |
| 139 | |
| 140 | return PJ_SUCCESS; |
| 141 | } |
| 142 | |
| 143 | |
| 144 | /* |
| 145 | * Register a codec factory. |
| 146 | */ |
| 147 | PJ_DEF(pj_status_t) pjmedia_codec_mgr_register_factory( pjmedia_codec_mgr *mgr, |
| 148 | pjmedia_codec_factory *factory) |
| 149 | { |
| 150 | pjmedia_codec_info info[PJMEDIA_CODEC_MGR_MAX_CODECS]; |
| 151 | unsigned i, count; |
| 152 | pj_status_t status; |
| 153 | |
| 154 | PJ_ASSERT_RETURN(mgr && factory, PJ_EINVAL); |
| 155 | |
| 156 | /* Since 2.0 we require codec factory to implement "destroy" op. Please |
| 157 | * see: https://trac.pjsip.org/repos/ticket/1294 |
| 158 | * |
| 159 | * Really! Please do see it. |
| 160 | */ |
| 161 | PJ_ASSERT_RETURN(factory->op->destroy != NULL, PJ_ENOTSUP); |
| 162 | |
| 163 | /* Enum codecs */ |
| 164 | count = PJ_ARRAY_SIZE(info); |
| 165 | status = factory->op->enum_info(factory, &count, info); |
| 166 | if (status != PJ_SUCCESS) |
| 167 | return status; |
| 168 | |
| 169 | pj_mutex_lock(mgr->mutex); |
| 170 | |
| 171 | /* Check codec count */ |
| 172 | if (count + mgr->codec_cnt > PJ_ARRAY_SIZE(mgr->codec_desc)) { |
| 173 | pj_mutex_unlock(mgr->mutex); |
| 174 | return PJ_ETOOMANY; |
| 175 | } |
| 176 | |
| 177 | |
| 178 | /* Save the codecs */ |
| 179 | for (i=0; i<count; ++i) { |
| 180 | pj_memcpy( &mgr->codec_desc[mgr->codec_cnt+i], |
| 181 | &info[i], sizeof(pjmedia_codec_info)); |
| 182 | mgr->codec_desc[mgr->codec_cnt+i].prio = PJMEDIA_CODEC_PRIO_NORMAL; |
| 183 | mgr->codec_desc[mgr->codec_cnt+i].factory = factory; |
| 184 | pjmedia_codec_info_to_id( &info[i], |
| 185 | mgr->codec_desc[mgr->codec_cnt+i].id, |
| 186 | sizeof(pjmedia_codec_id)); |
| 187 | } |
| 188 | |
| 189 | /* Update count */ |
| 190 | mgr->codec_cnt += count; |
| 191 | |
| 192 | /* Re-sort codec based on priorities */ |
| 193 | sort_codecs(mgr); |
| 194 | |
| 195 | /* Add factory to the list */ |
| 196 | pj_list_push_back(&mgr->factory_list, factory); |
| 197 | |
| 198 | pj_mutex_unlock(mgr->mutex); |
| 199 | |
| 200 | return PJ_SUCCESS; |
| 201 | } |
| 202 | |
| 203 | |
| 204 | /* |
| 205 | * Unregister a codec factory. |
| 206 | */ |
| 207 | PJ_DEF(pj_status_t) pjmedia_codec_mgr_unregister_factory( |
| 208 | pjmedia_codec_mgr *mgr, |
| 209 | pjmedia_codec_factory *factory) |
| 210 | { |
| 211 | unsigned i; |
| 212 | PJ_ASSERT_RETURN(mgr && factory, PJ_EINVAL); |
| 213 | |
| 214 | pj_mutex_lock(mgr->mutex); |
| 215 | |
| 216 | /* Factory must be registered. */ |
| 217 | if (pj_list_find_node(&mgr->factory_list, factory) != factory) { |
| 218 | pj_mutex_unlock(mgr->mutex); |
| 219 | return PJ_ENOTFOUND; |
| 220 | } |
| 221 | |
| 222 | /* Erase factory from the factory list */ |
| 223 | pj_list_erase(factory); |
| 224 | |
| 225 | |
| 226 | /* Remove all supported codecs from the codec manager that were created |
| 227 | * by the specified factory. |
| 228 | */ |
| 229 | for (i=0; i<mgr->codec_cnt; ) { |
| 230 | |
| 231 | if (mgr->codec_desc[i].factory == factory) { |
| 232 | /* Release pool of codec default param */ |
| 233 | if (mgr->codec_desc[i].param) { |
| 234 | pj_assert(mgr->codec_desc[i].param->pool); |
| 235 | pj_pool_release(mgr->codec_desc[i].param->pool); |
| 236 | } |
| 237 | |
| 238 | /* Remove the codec from array of codec descriptions */ |
| 239 | pj_array_erase(mgr->codec_desc, sizeof(mgr->codec_desc[0]), |
| 240 | mgr->codec_cnt, i); |
| 241 | --mgr->codec_cnt; |
| 242 | |
| 243 | } else { |
| 244 | ++i; |
| 245 | } |
| 246 | } |
| 247 | |
| 248 | pj_mutex_unlock(mgr->mutex); |
| 249 | |
| 250 | return PJ_SUCCESS; |
| 251 | } |
| 252 | |
| 253 | |
| 254 | /* |
| 255 | * Enum all codecs. |
| 256 | */ |
| 257 | PJ_DEF(pj_status_t) pjmedia_codec_mgr_enum_codecs(pjmedia_codec_mgr *mgr, |
| 258 | unsigned *count, |
| 259 | pjmedia_codec_info codecs[], |
| 260 | unsigned *prio) |
| 261 | { |
| 262 | unsigned i; |
| 263 | |
| 264 | PJ_ASSERT_RETURN(mgr && count && codecs, PJ_EINVAL); |
| 265 | |
| 266 | pj_mutex_lock(mgr->mutex); |
| 267 | |
| 268 | if (*count > mgr->codec_cnt) |
| 269 | *count = mgr->codec_cnt; |
| 270 | |
| 271 | for (i=0; i<*count; ++i) { |
| 272 | pj_memcpy(&codecs[i], |
| 273 | &mgr->codec_desc[i].info, |
| 274 | sizeof(pjmedia_codec_info)); |
| 275 | } |
| 276 | |
| 277 | if (prio) { |
| 278 | for (i=0; i < *count; ++i) |
| 279 | prio[i] = mgr->codec_desc[i].prio; |
| 280 | } |
| 281 | |
| 282 | pj_mutex_unlock(mgr->mutex); |
| 283 | |
| 284 | return PJ_SUCCESS; |
| 285 | } |
| 286 | |
| 287 | |
| 288 | /* |
| 289 | * Get codec info for static payload type. |
| 290 | */ |
| 291 | PJ_DEF(pj_status_t) pjmedia_codec_mgr_get_codec_info( pjmedia_codec_mgr *mgr, |
| 292 | unsigned pt, |
| 293 | const pjmedia_codec_info **p_info) |
| 294 | { |
| 295 | unsigned i; |
| 296 | |
| 297 | PJ_ASSERT_RETURN(mgr && p_info && pt>=0 && pt < 96, PJ_EINVAL); |
| 298 | |
| 299 | pj_mutex_lock(mgr->mutex); |
| 300 | |
| 301 | for (i=0; i<mgr->codec_cnt; ++i) { |
| 302 | if (mgr->codec_desc[i].info.pt == pt) { |
| 303 | *p_info = &mgr->codec_desc[i].info; |
| 304 | |
| 305 | pj_mutex_unlock(mgr->mutex); |
| 306 | return PJ_SUCCESS; |
| 307 | } |
| 308 | } |
| 309 | |
| 310 | pj_mutex_unlock(mgr->mutex); |
| 311 | |
| 312 | return PJMEDIA_CODEC_EUNSUP; |
| 313 | } |
| 314 | |
| 315 | |
| 316 | /* |
| 317 | * Convert codec info struct into a unique codec identifier. |
| 318 | * A codec identifier looks something like "L16/44100/2". |
| 319 | */ |
| 320 | PJ_DEF(char*) pjmedia_codec_info_to_id( const pjmedia_codec_info *info, |
| 321 | char *id, unsigned max_len ) |
| 322 | { |
| 323 | int len; |
| 324 | |
| 325 | PJ_ASSERT_RETURN(info && id && max_len, NULL); |
| 326 | |
| 327 | len = pj_ansi_snprintf(id, max_len, "%.*s/%u/%u", |
| 328 | (int)info->encoding_name.slen, |
| 329 | info->encoding_name.ptr, |
| 330 | info->clock_rate, |
| 331 | info->channel_cnt); |
| 332 | |
| 333 | if (len < 1 || len >= (int)max_len) { |
| 334 | id[0] = '\0'; |
| 335 | return NULL; |
| 336 | } |
| 337 | |
| 338 | return id; |
| 339 | } |
| 340 | |
| 341 | |
| 342 | /* |
| 343 | * Find codecs by the unique codec identifier. This function will find |
| 344 | * all codecs that match the codec identifier prefix. For example, if |
| 345 | * "L16" is specified, then it will find "L16/8000/1", "L16/16000/1", |
| 346 | * and so on, up to the maximum count specified in the argument. |
| 347 | */ |
| 348 | PJ_DEF(pj_status_t) pjmedia_codec_mgr_find_codecs_by_id( pjmedia_codec_mgr *mgr, |
| 349 | const pj_str_t *codec_id, |
| 350 | unsigned *count, |
| 351 | const pjmedia_codec_info *p_info[], |
| 352 | unsigned prio[]) |
| 353 | { |
| 354 | unsigned i, found = 0; |
| 355 | |
| 356 | PJ_ASSERT_RETURN(mgr && codec_id && count && *count, PJ_EINVAL); |
| 357 | |
| 358 | pj_mutex_lock(mgr->mutex); |
| 359 | |
| 360 | for (i=0; i<mgr->codec_cnt; ++i) { |
| 361 | |
| 362 | if (codec_id->slen == 0 || |
| 363 | pj_strnicmp2(codec_id, mgr->codec_desc[i].id, |
| 364 | codec_id->slen) == 0) |
| 365 | { |
| 366 | |
| 367 | if (p_info) |
| 368 | p_info[found] = &mgr->codec_desc[i].info; |
| 369 | if (prio) |
| 370 | prio[found] = mgr->codec_desc[i].prio; |
| 371 | |
| 372 | ++found; |
| 373 | |
| 374 | if (found >= *count) |
| 375 | break; |
| 376 | } |
| 377 | |
| 378 | } |
| 379 | |
| 380 | pj_mutex_unlock(mgr->mutex); |
| 381 | |
| 382 | *count = found; |
| 383 | |
| 384 | return found ? PJ_SUCCESS : PJ_ENOTFOUND; |
| 385 | } |
| 386 | |
| 387 | |
| 388 | /* Swap two codecs positions in codec manager */ |
| 389 | static void swap_codec(pjmedia_codec_mgr *mgr, unsigned i, unsigned j) |
| 390 | { |
| 391 | struct pjmedia_codec_desc tmp; |
| 392 | |
| 393 | pj_memcpy(&tmp, &mgr->codec_desc[i], sizeof(struct pjmedia_codec_desc)); |
| 394 | |
| 395 | pj_memcpy(&mgr->codec_desc[i], &mgr->codec_desc[j], |
| 396 | sizeof(struct pjmedia_codec_desc)); |
| 397 | |
| 398 | pj_memcpy(&mgr->codec_desc[j], &tmp, sizeof(struct pjmedia_codec_desc)); |
| 399 | } |
| 400 | |
| 401 | |
| 402 | /* Sort codecs in codec manager based on priorities */ |
| 403 | static void sort_codecs(pjmedia_codec_mgr *mgr) |
| 404 | { |
| 405 | unsigned i; |
| 406 | |
| 407 | /* Re-sort */ |
| 408 | for (i=0; i<mgr->codec_cnt; ++i) { |
| 409 | unsigned j, max; |
| 410 | |
| 411 | for (max=i, j=i+1; j<mgr->codec_cnt; ++j) { |
| 412 | if (mgr->codec_desc[j].prio > mgr->codec_desc[max].prio) |
| 413 | max = j; |
| 414 | } |
| 415 | |
| 416 | if (max != i) |
| 417 | swap_codec(mgr, i, max); |
| 418 | } |
| 419 | |
| 420 | /* Change PJMEDIA_CODEC_PRIO_HIGHEST codecs to NEXT_HIGHER */ |
| 421 | for (i=0; i<mgr->codec_cnt; ++i) { |
| 422 | if (mgr->codec_desc[i].prio == PJMEDIA_CODEC_PRIO_HIGHEST) |
| 423 | mgr->codec_desc[i].prio = PJMEDIA_CODEC_PRIO_NEXT_HIGHER; |
| 424 | else |
| 425 | break; |
| 426 | } |
| 427 | } |
| 428 | |
| 429 | |
| 430 | /** |
| 431 | * Set codec priority. The codec priority determines the order of |
| 432 | * the codec in the SDP created by the endpoint. If more than one codecs |
| 433 | * are found with the same codec_id prefix, then the function sets the |
| 434 | * priorities of all those codecs. |
| 435 | */ |
| 436 | PJ_DEF(pj_status_t) pjmedia_codec_mgr_set_codec_priority( |
| 437 | pjmedia_codec_mgr *mgr, |
| 438 | const pj_str_t *codec_id, |
| 439 | pj_uint8_t prio) |
| 440 | { |
| 441 | unsigned i, found = 0; |
| 442 | |
| 443 | PJ_ASSERT_RETURN(mgr && codec_id, PJ_EINVAL); |
| 444 | |
| 445 | pj_mutex_lock(mgr->mutex); |
| 446 | |
| 447 | /* Update the priorities of affected codecs */ |
| 448 | for (i=0; i<mgr->codec_cnt; ++i) |
| 449 | { |
| 450 | if (codec_id->slen == 0 || |
| 451 | pj_strnicmp2(codec_id, mgr->codec_desc[i].id, |
| 452 | codec_id->slen) == 0) |
| 453 | { |
| 454 | mgr->codec_desc[i].prio = (pjmedia_codec_priority) prio; |
| 455 | ++found; |
| 456 | } |
| 457 | } |
| 458 | |
| 459 | if (!found) { |
| 460 | pj_mutex_unlock(mgr->mutex); |
| 461 | return PJ_ENOTFOUND; |
| 462 | } |
| 463 | |
| 464 | /* Re-sort codecs */ |
| 465 | sort_codecs(mgr); |
| 466 | |
| 467 | pj_mutex_unlock(mgr->mutex); |
| 468 | |
| 469 | return PJ_SUCCESS; |
| 470 | } |
| 471 | |
| 472 | |
| 473 | /* |
| 474 | * Allocate one codec. |
| 475 | */ |
| 476 | PJ_DEF(pj_status_t) pjmedia_codec_mgr_alloc_codec(pjmedia_codec_mgr *mgr, |
| 477 | const pjmedia_codec_info *info, |
| 478 | pjmedia_codec **p_codec) |
| 479 | { |
| 480 | pjmedia_codec_factory *factory; |
| 481 | pj_status_t status; |
| 482 | |
| 483 | PJ_ASSERT_RETURN(mgr && info && p_codec, PJ_EINVAL); |
| 484 | |
| 485 | *p_codec = NULL; |
| 486 | |
| 487 | pj_mutex_lock(mgr->mutex); |
| 488 | |
| 489 | factory = mgr->factory_list.next; |
| 490 | while (factory != &mgr->factory_list) { |
| 491 | |
| 492 | if ( (*factory->op->test_alloc)(factory, info) == PJ_SUCCESS ) { |
| 493 | |
| 494 | status = (*factory->op->alloc_codec)(factory, info, p_codec); |
| 495 | if (status == PJ_SUCCESS) { |
| 496 | pj_mutex_unlock(mgr->mutex); |
| 497 | return PJ_SUCCESS; |
| 498 | } |
| 499 | |
| 500 | } |
| 501 | |
| 502 | factory = factory->next; |
| 503 | } |
| 504 | |
| 505 | pj_mutex_unlock(mgr->mutex); |
| 506 | |
| 507 | return PJMEDIA_CODEC_EUNSUP; |
| 508 | } |
| 509 | |
| 510 | |
| 511 | /* |
| 512 | * Get default codec parameter. |
| 513 | */ |
| 514 | PJ_DEF(pj_status_t) pjmedia_codec_mgr_get_default_param( pjmedia_codec_mgr *mgr, |
| 515 | const pjmedia_codec_info *info, |
| 516 | pjmedia_codec_param *param ) |
| 517 | { |
| 518 | pjmedia_codec_factory *factory; |
| 519 | pj_status_t status; |
| 520 | pjmedia_codec_id codec_id; |
| 521 | struct pjmedia_codec_desc *codec_desc = NULL; |
| 522 | unsigned i; |
| 523 | |
| 524 | PJ_ASSERT_RETURN(mgr && info && param, PJ_EINVAL); |
| 525 | |
| 526 | if (!pjmedia_codec_info_to_id(info, (char*)&codec_id, sizeof(codec_id))) |
| 527 | return PJ_EINVAL; |
| 528 | |
| 529 | pj_mutex_lock(mgr->mutex); |
| 530 | |
| 531 | /* First, lookup default param in codec desc */ |
| 532 | for (i=0; i < mgr->codec_cnt; ++i) { |
| 533 | if (pj_ansi_stricmp(codec_id, mgr->codec_desc[i].id) == 0) { |
| 534 | codec_desc = &mgr->codec_desc[i]; |
| 535 | break; |
| 536 | } |
| 537 | } |
| 538 | |
| 539 | /* If we found the codec and its default param is set, return it */ |
| 540 | if (codec_desc && codec_desc->param) { |
| 541 | pj_assert(codec_desc->param->param); |
| 542 | pj_memcpy(param, codec_desc->param->param, |
| 543 | sizeof(pjmedia_codec_param)); |
| 544 | |
| 545 | pj_mutex_unlock(mgr->mutex); |
| 546 | return PJ_SUCCESS; |
| 547 | } |
| 548 | |
| 549 | /* Otherwise query the default param from codec factory */ |
| 550 | factory = mgr->factory_list.next; |
| 551 | while (factory != &mgr->factory_list) { |
| 552 | |
| 553 | if ( (*factory->op->test_alloc)(factory, info) == PJ_SUCCESS ) { |
| 554 | |
| 555 | status = (*factory->op->default_attr)(factory, info, param); |
| 556 | if (status == PJ_SUCCESS) { |
| 557 | /* Check for invalid max_bps. */ |
| 558 | if (param->info.max_bps < param->info.avg_bps) |
| 559 | param->info.max_bps = param->info.avg_bps; |
| 560 | |
| 561 | pj_mutex_unlock(mgr->mutex); |
| 562 | return PJ_SUCCESS; |
| 563 | } |
| 564 | |
| 565 | } |
| 566 | |
| 567 | factory = factory->next; |
| 568 | } |
| 569 | |
| 570 | pj_mutex_unlock(mgr->mutex); |
| 571 | |
| 572 | |
| 573 | return PJMEDIA_CODEC_EUNSUP; |
| 574 | } |
| 575 | |
| 576 | |
| 577 | /* |
| 578 | * Set default codec parameter. |
| 579 | */ |
| 580 | PJ_DEF(pj_status_t) pjmedia_codec_mgr_set_default_param( |
| 581 | pjmedia_codec_mgr *mgr, |
| 582 | const pjmedia_codec_info *info, |
| 583 | const pjmedia_codec_param *param ) |
| 584 | { |
| 585 | unsigned i; |
| 586 | pjmedia_codec_id codec_id; |
| 587 | pj_pool_t *pool, *old_pool = NULL; |
| 588 | struct pjmedia_codec_desc *codec_desc = NULL; |
| 589 | pjmedia_codec_default_param *p; |
| 590 | |
| 591 | PJ_ASSERT_RETURN(mgr && info, PJ_EINVAL); |
| 592 | |
| 593 | if (!pjmedia_codec_info_to_id(info, (char*)&codec_id, sizeof(codec_id))) |
| 594 | return PJ_EINVAL; |
| 595 | |
| 596 | pj_mutex_lock(mgr->mutex); |
| 597 | |
| 598 | /* Lookup codec desc */ |
| 599 | for (i=0; i < mgr->codec_cnt; ++i) { |
| 600 | if (pj_ansi_stricmp(codec_id, mgr->codec_desc[i].id) == 0) { |
| 601 | codec_desc = &mgr->codec_desc[i]; |
| 602 | break; |
| 603 | } |
| 604 | } |
| 605 | |
| 606 | /* Codec not found */ |
| 607 | if (!codec_desc) { |
| 608 | pj_mutex_unlock(mgr->mutex); |
| 609 | return PJMEDIA_CODEC_EUNSUP; |
| 610 | } |
| 611 | |
| 612 | /* If codec param is previously set, reset the codec param but release |
| 613 | * the codec param pool later after the new param is set (ticket #1171). |
| 614 | */ |
| 615 | if (codec_desc->param) { |
| 616 | pj_assert(codec_desc->param->pool); |
| 617 | old_pool = codec_desc->param->pool; |
| 618 | codec_desc->param = NULL; |
| 619 | } |
| 620 | |
| 621 | /* When param is set to NULL, i.e: setting default codec param to library |
| 622 | * default setting, just return PJ_SUCCESS. |
| 623 | */ |
| 624 | if (NULL == param) { |
| 625 | pj_mutex_unlock(mgr->mutex); |
| 626 | if (old_pool) |
| 627 | pj_pool_release(old_pool); |
| 628 | return PJ_SUCCESS; |
| 629 | } |
| 630 | |
| 631 | /* Instantiate and initialize codec param */ |
| 632 | pool = pj_pool_create(mgr->pf, (char*)codec_id, 256, 256, NULL); |
| 633 | codec_desc->param = PJ_POOL_ZALLOC_T(pool, pjmedia_codec_default_param); |
| 634 | p = codec_desc->param; |
| 635 | p->pool = pool; |
| 636 | |
| 637 | /* Update codec param */ |
| 638 | p->param = pjmedia_codec_param_clone(pool, param); |
| 639 | if (!p->param) |
| 640 | return PJ_EINVAL; |
| 641 | |
| 642 | pj_mutex_unlock(mgr->mutex); |
| 643 | |
| 644 | if (old_pool) |
| 645 | pj_pool_release(old_pool); |
| 646 | |
| 647 | return PJ_SUCCESS; |
| 648 | } |
| 649 | |
| 650 | |
| 651 | /* |
| 652 | * Dealloc codec. |
| 653 | */ |
| 654 | PJ_DEF(pj_status_t) pjmedia_codec_mgr_dealloc_codec(pjmedia_codec_mgr *mgr, |
| 655 | pjmedia_codec *codec) |
| 656 | { |
| 657 | PJ_ASSERT_RETURN(mgr && codec, PJ_EINVAL); |
| 658 | |
| 659 | return (*codec->factory->op->dealloc_codec)(codec->factory, codec); |
| 660 | } |
| 661 | |