Tristan Matthews | 0a329cc | 2013-07-17 13:20:14 -0400 | [diff] [blame] | 1 | /* $Id$ */ |
| 2 | /* |
| 3 | * Copyright (C) 2011-2013 Teluu Inc. (http://www.teluu.com) |
| 4 | * Copyright (C) 2011 Dan Arrhenius <dan@keystream.se> |
| 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 | |
| 21 | /* |
| 22 | * AMR codec implementation with OpenCORE AMR library |
| 23 | */ |
| 24 | #include <pjmedia-codec/g722.h> |
| 25 | #include <pjmedia-codec/amr_sdp_match.h> |
| 26 | #include <pjmedia/codec.h> |
| 27 | #include <pjmedia/errno.h> |
| 28 | #include <pjmedia/endpoint.h> |
| 29 | #include <pjmedia/plc.h> |
| 30 | #include <pjmedia/port.h> |
| 31 | #include <pjmedia/silencedet.h> |
| 32 | #include <pj/assert.h> |
| 33 | #include <pj/log.h> |
| 34 | #include <pj/pool.h> |
| 35 | #include <pj/string.h> |
| 36 | #include <pj/os.h> |
| 37 | #include <pj/math.h> |
| 38 | |
| 39 | #if defined(PJMEDIA_HAS_OPENCORE_AMRNB_CODEC) && \ |
| 40 | (PJMEDIA_HAS_OPENCORE_AMRNB_CODEC != 0) |
| 41 | #define USE_AMRNB |
| 42 | #endif |
| 43 | |
| 44 | #if defined(PJMEDIA_HAS_OPENCORE_AMRWB_CODEC) && \ |
| 45 | (PJMEDIA_HAS_OPENCORE_AMRWB_CODEC != 0) |
| 46 | #define USE_AMRWB |
| 47 | #endif |
| 48 | |
| 49 | #if defined(USE_AMRNB) || defined(USE_AMRWB) |
| 50 | |
| 51 | #ifdef USE_AMRNB |
| 52 | #include <opencore-amrnb/interf_enc.h> |
| 53 | #include <opencore-amrnb/interf_dec.h> |
| 54 | #endif |
| 55 | |
| 56 | #ifdef USE_AMRWB |
| 57 | #include <vo-amrwbenc/enc_if.h> |
| 58 | #include <opencore-amrwb/dec_if.h> |
| 59 | #endif |
| 60 | |
| 61 | #include <pjmedia-codec/amr_helper.h> |
| 62 | #include <pjmedia-codec/opencore_amr.h> |
| 63 | |
| 64 | #define THIS_FILE "opencore_amr.c" |
| 65 | |
| 66 | /* Tracing */ |
| 67 | #define PJ_TRACE 0 |
| 68 | |
| 69 | #if PJ_TRACE |
| 70 | # define TRACE_(expr) PJ_LOG(4,expr) |
| 71 | #else |
| 72 | # define TRACE_(expr) |
| 73 | #endif |
| 74 | |
| 75 | /* Use PJMEDIA PLC */ |
| 76 | #define USE_PJMEDIA_PLC 1 |
| 77 | |
| 78 | #define FRAME_LENGTH_MS 20 |
| 79 | |
| 80 | |
| 81 | /* Prototypes for AMR factory */ |
| 82 | static pj_status_t amr_test_alloc(pjmedia_codec_factory *factory, |
| 83 | const pjmedia_codec_info *id ); |
| 84 | static pj_status_t amr_default_attr(pjmedia_codec_factory *factory, |
| 85 | const pjmedia_codec_info *id, |
| 86 | pjmedia_codec_param *attr ); |
| 87 | static pj_status_t amr_enum_codecs(pjmedia_codec_factory *factory, |
| 88 | unsigned *count, |
| 89 | pjmedia_codec_info codecs[]); |
| 90 | static pj_status_t amr_alloc_codec(pjmedia_codec_factory *factory, |
| 91 | const pjmedia_codec_info *id, |
| 92 | pjmedia_codec **p_codec); |
| 93 | static pj_status_t amr_dealloc_codec(pjmedia_codec_factory *factory, |
| 94 | pjmedia_codec *codec ); |
| 95 | |
| 96 | /* Prototypes for AMR implementation. */ |
| 97 | static pj_status_t amr_codec_init(pjmedia_codec *codec, |
| 98 | pj_pool_t *pool ); |
| 99 | static pj_status_t amr_codec_open(pjmedia_codec *codec, |
| 100 | pjmedia_codec_param *attr ); |
| 101 | static pj_status_t amr_codec_close(pjmedia_codec *codec ); |
| 102 | static pj_status_t amr_codec_modify(pjmedia_codec *codec, |
| 103 | const pjmedia_codec_param *attr ); |
| 104 | static pj_status_t amr_codec_parse(pjmedia_codec *codec, |
| 105 | void *pkt, |
| 106 | pj_size_t pkt_size, |
| 107 | const pj_timestamp *ts, |
| 108 | unsigned *frame_cnt, |
| 109 | pjmedia_frame frames[]); |
| 110 | static pj_status_t amr_codec_encode(pjmedia_codec *codec, |
| 111 | const struct pjmedia_frame *input, |
| 112 | unsigned output_buf_len, |
| 113 | struct pjmedia_frame *output); |
| 114 | static pj_status_t amr_codec_decode(pjmedia_codec *codec, |
| 115 | const struct pjmedia_frame *input, |
| 116 | unsigned output_buf_len, |
| 117 | struct pjmedia_frame *output); |
| 118 | static pj_status_t amr_codec_recover(pjmedia_codec *codec, |
| 119 | unsigned output_buf_len, |
| 120 | struct pjmedia_frame *output); |
| 121 | |
| 122 | |
| 123 | |
| 124 | /* Definition for AMR codec operations. */ |
| 125 | static pjmedia_codec_op amr_op = |
| 126 | { |
| 127 | &amr_codec_init, |
| 128 | &amr_codec_open, |
| 129 | &amr_codec_close, |
| 130 | &amr_codec_modify, |
| 131 | &amr_codec_parse, |
| 132 | &amr_codec_encode, |
| 133 | &amr_codec_decode, |
| 134 | &amr_codec_recover |
| 135 | }; |
| 136 | |
| 137 | /* Definition for AMR codec factory operations. */ |
| 138 | static pjmedia_codec_factory_op amr_factory_op = |
| 139 | { |
| 140 | &amr_test_alloc, |
| 141 | &amr_default_attr, |
| 142 | &amr_enum_codecs, |
| 143 | &amr_alloc_codec, |
| 144 | &amr_dealloc_codec, |
| 145 | &pjmedia_codec_opencore_amr_deinit |
| 146 | }; |
| 147 | |
| 148 | |
| 149 | /* AMR factory */ |
| 150 | static struct amr_codec_factory |
| 151 | { |
| 152 | pjmedia_codec_factory base; |
| 153 | pjmedia_endpt *endpt; |
| 154 | pj_pool_t *pool; |
| 155 | pj_bool_t init[2]; |
| 156 | } amr_codec_factory; |
| 157 | |
| 158 | |
| 159 | /* AMR codec private data. */ |
| 160 | struct amr_data |
| 161 | { |
| 162 | pj_pool_t *pool; |
| 163 | unsigned clock_rate; |
| 164 | void *encoder; |
| 165 | void *decoder; |
| 166 | pj_bool_t plc_enabled; |
| 167 | pj_bool_t vad_enabled; |
| 168 | int enc_mode; |
| 169 | pjmedia_codec_amr_pack_setting enc_setting; |
| 170 | pjmedia_codec_amr_pack_setting dec_setting; |
| 171 | #if USE_PJMEDIA_PLC |
| 172 | pjmedia_plc *plc; |
| 173 | #endif |
| 174 | pj_timestamp last_tx; |
| 175 | }; |
| 176 | |
| 177 | /* Index for AMR tables. */ |
| 178 | enum |
| 179 | { |
| 180 | IDX_AMR_NB, /* Index for narrowband. */ |
| 181 | IDX_AMR_WB /* Index for wideband. */ |
| 182 | }; |
| 183 | |
| 184 | static pjmedia_codec_amr_config def_config[2] = |
| 185 | {{ /* AMR-NB */ |
| 186 | PJ_FALSE, /* octet align */ |
| 187 | 5900 /* bitrate */ |
| 188 | }, |
| 189 | { /* AMR-WB */ |
| 190 | PJ_FALSE, /* octet align */ |
| 191 | 12650 /* bitrate */ |
| 192 | }}; |
| 193 | |
| 194 | static const pj_uint16_t* amr_bitrates[2] = |
| 195 | {pjmedia_codec_amrnb_bitrates, pjmedia_codec_amrwb_bitrates}; |
| 196 | |
| 197 | static const unsigned amr_bitrates_size[2] = |
| 198 | { |
| 199 | PJ_ARRAY_SIZE(pjmedia_codec_amrnb_bitrates), |
| 200 | PJ_ARRAY_SIZE(pjmedia_codec_amrwb_bitrates) |
| 201 | }; |
| 202 | |
| 203 | |
| 204 | /* |
| 205 | * Initialize and register AMR codec factory to pjmedia endpoint. |
| 206 | */ |
| 207 | PJ_DEF(pj_status_t) pjmedia_codec_opencore_amr_init( pjmedia_endpt *endpt, |
| 208 | unsigned options) |
| 209 | { |
| 210 | pjmedia_codec_mgr *codec_mgr; |
| 211 | pj_str_t codec_name; |
| 212 | pj_status_t status; |
| 213 | |
| 214 | if (amr_codec_factory.pool != NULL) |
| 215 | return PJ_SUCCESS; |
| 216 | |
| 217 | /* Create AMR codec factory. */ |
| 218 | amr_codec_factory.base.op = &amr_factory_op; |
| 219 | amr_codec_factory.base.factory_data = NULL; |
| 220 | amr_codec_factory.endpt = endpt; |
| 221 | #ifdef USE_AMRNB |
| 222 | amr_codec_factory.init[IDX_AMR_NB] = ((options & PJMEDIA_AMR_NO_NB) == 0); |
| 223 | #else |
| 224 | amr_codec_factory.init[IDX_AMR_NB] = PJ_FALSE; |
| 225 | #endif |
| 226 | #ifdef USE_AMRWB |
| 227 | amr_codec_factory.init[IDX_AMR_WB] = ((options & PJMEDIA_AMR_NO_WB) == 0); |
| 228 | #else |
| 229 | amr_codec_factory.init[IDX_AMR_WB] = PJ_FALSE; |
| 230 | #endif |
| 231 | |
| 232 | amr_codec_factory.pool = pjmedia_endpt_create_pool(endpt, "amr", 1000, |
| 233 | 1000); |
| 234 | if (!amr_codec_factory.pool) |
| 235 | return PJ_ENOMEM; |
| 236 | |
| 237 | /* Get the codec manager. */ |
| 238 | codec_mgr = pjmedia_endpt_get_codec_mgr(endpt); |
| 239 | if (!codec_mgr) { |
| 240 | status = PJ_EINVALIDOP; |
| 241 | goto on_error; |
| 242 | } |
| 243 | |
| 244 | /* Register format match callback. */ |
| 245 | pj_cstr(&codec_name, "AMR"); |
| 246 | status = pjmedia_sdp_neg_register_fmt_match_cb( |
| 247 | &codec_name, |
| 248 | &pjmedia_codec_amr_match_sdp); |
| 249 | if (status != PJ_SUCCESS) |
| 250 | goto on_error; |
| 251 | |
| 252 | /* Register codec factory to endpoint. */ |
| 253 | status = pjmedia_codec_mgr_register_factory(codec_mgr, |
| 254 | &amr_codec_factory.base); |
| 255 | if (status != PJ_SUCCESS) |
| 256 | goto on_error; |
| 257 | |
| 258 | /* Done. */ |
| 259 | return PJ_SUCCESS; |
| 260 | |
| 261 | on_error: |
| 262 | pj_pool_release(amr_codec_factory.pool); |
| 263 | amr_codec_factory.pool = NULL; |
| 264 | return status; |
| 265 | } |
| 266 | |
| 267 | PJ_DEF(pj_status_t) |
| 268 | pjmedia_codec_opencore_amr_init_default( pjmedia_endpt *endpt ) |
| 269 | { |
| 270 | return pjmedia_codec_opencore_amr_init(endpt, 0); |
| 271 | } |
| 272 | |
| 273 | PJ_DEF(pj_status_t) pjmedia_codec_opencore_amrnb_init( pjmedia_endpt *endpt ) |
| 274 | { |
| 275 | return pjmedia_codec_opencore_amr_init(endpt, PJMEDIA_AMR_NO_WB); |
| 276 | } |
| 277 | |
| 278 | |
| 279 | /* |
| 280 | * Unregister AMR codec factory from pjmedia endpoint and deinitialize |
| 281 | * the AMR codec library. |
| 282 | */ |
| 283 | PJ_DEF(pj_status_t) pjmedia_codec_opencore_amr_deinit(void) |
| 284 | { |
| 285 | pjmedia_codec_mgr *codec_mgr; |
| 286 | pj_status_t status; |
| 287 | |
| 288 | amr_codec_factory.init[IDX_AMR_NB] = PJ_FALSE; |
| 289 | amr_codec_factory.init[IDX_AMR_WB] = PJ_FALSE; |
| 290 | |
| 291 | if (amr_codec_factory.pool == NULL) |
| 292 | return PJ_SUCCESS; |
| 293 | |
| 294 | /* Get the codec manager. */ |
| 295 | codec_mgr = pjmedia_endpt_get_codec_mgr(amr_codec_factory.endpt); |
| 296 | if (!codec_mgr) { |
| 297 | pj_pool_release(amr_codec_factory.pool); |
| 298 | amr_codec_factory.pool = NULL; |
| 299 | return PJ_EINVALIDOP; |
| 300 | } |
| 301 | |
| 302 | /* Unregister AMR codec factory. */ |
| 303 | status = pjmedia_codec_mgr_unregister_factory(codec_mgr, |
| 304 | &amr_codec_factory.base); |
| 305 | |
| 306 | /* Destroy pool. */ |
| 307 | pj_pool_release(amr_codec_factory.pool); |
| 308 | amr_codec_factory.pool = NULL; |
| 309 | |
| 310 | return status; |
| 311 | } |
| 312 | |
| 313 | PJ_DEF(pj_status_t) pjmedia_codec_opencore_amrnb_deinit(void) |
| 314 | { |
| 315 | if (amr_codec_factory.init[IDX_AMR_NB] && |
| 316 | amr_codec_factory.init[IDX_AMR_WB]) |
| 317 | { |
| 318 | PJ_LOG(4, (THIS_FILE, "Should call " |
| 319 | "pjmedia_codec_opencore_amr_deinit() instead")); |
| 320 | |
| 321 | return PJ_EINVALIDOP; |
| 322 | } |
| 323 | |
| 324 | return pjmedia_codec_opencore_amr_deinit(); |
| 325 | } |
| 326 | |
| 327 | static pj_status_t |
| 328 | amr_set_config(unsigned idx, const pjmedia_codec_amr_config *config) |
| 329 | { |
| 330 | unsigned nbitrates; |
| 331 | |
| 332 | def_config[idx] = *config; |
| 333 | |
| 334 | /* Normalize bitrate. */ |
| 335 | nbitrates = amr_bitrates_size[idx]; |
| 336 | if (def_config[idx].bitrate < amr_bitrates[idx][0]) { |
| 337 | def_config[idx].bitrate = amr_bitrates[idx][0]; |
| 338 | } else if (def_config[idx].bitrate > amr_bitrates[idx][nbitrates-1]) { |
| 339 | def_config[idx].bitrate = amr_bitrates[idx][nbitrates-1]; |
| 340 | } else |
| 341 | { |
| 342 | unsigned i; |
| 343 | |
| 344 | for (i = 0; i < nbitrates; ++i) { |
| 345 | if (def_config[idx].bitrate <= amr_bitrates[idx][i]) |
| 346 | break; |
| 347 | } |
| 348 | def_config[idx].bitrate = amr_bitrates[idx][i]; |
| 349 | } |
| 350 | |
| 351 | return PJ_SUCCESS; |
| 352 | } |
| 353 | |
| 354 | PJ_DEF(pj_status_t) pjmedia_codec_opencore_amrnb_set_config( |
| 355 | const pjmedia_codec_amrnb_config *config) |
| 356 | { |
| 357 | return amr_set_config(IDX_AMR_NB, (const pjmedia_codec_amr_config *)config); |
| 358 | } |
| 359 | |
| 360 | PJ_DEF(pj_status_t) pjmedia_codec_opencore_amrwb_set_config( |
| 361 | const pjmedia_codec_amrwb_config *config) |
| 362 | { |
| 363 | return amr_set_config(IDX_AMR_WB, (const pjmedia_codec_amr_config *)config); |
| 364 | } |
| 365 | |
| 366 | /* |
| 367 | * Check if factory can allocate the specified codec. |
| 368 | */ |
| 369 | static pj_status_t amr_test_alloc( pjmedia_codec_factory *factory, |
| 370 | const pjmedia_codec_info *info ) |
| 371 | { |
| 372 | const pj_str_t amr_tag = { "AMR", 3}; |
| 373 | const pj_str_t amrwb_tag = { "AMR-WB", 6}; |
| 374 | PJ_UNUSED_ARG(factory); |
| 375 | |
| 376 | /* Type MUST be audio. */ |
| 377 | if (info->type != PJMEDIA_TYPE_AUDIO) |
| 378 | return PJMEDIA_CODEC_EUNSUP; |
| 379 | |
| 380 | /* Check payload type. */ |
| 381 | if (info->pt != PJMEDIA_RTP_PT_AMR && info->pt != PJMEDIA_RTP_PT_AMRWB) |
| 382 | return PJMEDIA_CODEC_EUNSUP; |
| 383 | |
| 384 | /* Check encoding name. */ |
| 385 | if (pj_stricmp(&info->encoding_name, &amr_tag) != 0 && |
| 386 | pj_stricmp(&info->encoding_name, &amrwb_tag) != 0) |
| 387 | { |
| 388 | return PJMEDIA_CODEC_EUNSUP; |
| 389 | } |
| 390 | |
| 391 | /* Check clock-rate */ |
| 392 | if ((info->clock_rate == 8000 && amr_codec_factory.init[IDX_AMR_NB]) || |
| 393 | (info->clock_rate == 16000 && amr_codec_factory.init[IDX_AMR_WB])) |
| 394 | { |
| 395 | return PJ_SUCCESS; |
| 396 | } |
| 397 | |
| 398 | /* Unsupported or disabled. */ |
| 399 | return PJMEDIA_CODEC_EUNSUP; |
| 400 | } |
| 401 | |
| 402 | /* |
| 403 | * Generate default attribute. |
| 404 | */ |
| 405 | static pj_status_t amr_default_attr( pjmedia_codec_factory *factory, |
| 406 | const pjmedia_codec_info *id, |
| 407 | pjmedia_codec_param *attr ) |
| 408 | { |
| 409 | unsigned idx; |
| 410 | |
| 411 | PJ_UNUSED_ARG(factory); |
| 412 | |
| 413 | idx = (id->clock_rate <= 8000? IDX_AMR_NB: IDX_AMR_WB); |
| 414 | pj_bzero(attr, sizeof(pjmedia_codec_param)); |
| 415 | attr->info.clock_rate = (id->clock_rate <= 8000? 8000: 16000); |
| 416 | attr->info.channel_cnt = 1; |
| 417 | attr->info.avg_bps = def_config[idx].bitrate; |
| 418 | attr->info.max_bps = amr_bitrates[idx][amr_bitrates_size[idx]-1]; |
| 419 | attr->info.pcm_bits_per_sample = 16; |
| 420 | attr->info.frm_ptime = 20; |
| 421 | attr->info.pt = (pj_uint8_t)id->pt; |
| 422 | |
| 423 | attr->setting.frm_per_pkt = 1; |
| 424 | attr->setting.vad = 1; |
| 425 | attr->setting.plc = 1; |
| 426 | |
| 427 | if (def_config[idx].octet_align) { |
| 428 | attr->setting.dec_fmtp.cnt = 1; |
| 429 | attr->setting.dec_fmtp.param[0].name = pj_str("octet-align"); |
| 430 | attr->setting.dec_fmtp.param[0].val = pj_str("1"); |
| 431 | } |
| 432 | |
| 433 | /* Default all other flag bits disabled. */ |
| 434 | |
| 435 | return PJ_SUCCESS; |
| 436 | } |
| 437 | |
| 438 | |
| 439 | /* |
| 440 | * Enum codecs supported by this factory (i.e. AMR-NB and AMR-WB). |
| 441 | */ |
| 442 | static pj_status_t amr_enum_codecs( pjmedia_codec_factory *factory, |
| 443 | unsigned *count, |
| 444 | pjmedia_codec_info codecs[]) |
| 445 | { |
| 446 | PJ_UNUSED_ARG(factory); |
| 447 | PJ_ASSERT_RETURN(codecs && *count > 0, PJ_EINVAL); |
| 448 | |
| 449 | *count = 0; |
| 450 | |
| 451 | if (amr_codec_factory.init[IDX_AMR_NB]) { |
| 452 | pj_bzero(&codecs[*count], sizeof(pjmedia_codec_info)); |
| 453 | codecs[*count].encoding_name = pj_str("AMR"); |
| 454 | codecs[*count].pt = PJMEDIA_RTP_PT_AMR; |
| 455 | codecs[*count].type = PJMEDIA_TYPE_AUDIO; |
| 456 | codecs[*count].clock_rate = 8000; |
| 457 | codecs[*count].channel_cnt = 1; |
| 458 | (*count)++; |
| 459 | } |
| 460 | |
| 461 | if (amr_codec_factory.init[IDX_AMR_WB]) { |
| 462 | pj_bzero(&codecs[*count], sizeof(pjmedia_codec_info)); |
| 463 | codecs[*count].encoding_name = pj_str("AMR-WB"); |
| 464 | codecs[*count].pt = PJMEDIA_RTP_PT_AMRWB; |
| 465 | codecs[*count].type = PJMEDIA_TYPE_AUDIO; |
| 466 | codecs[*count].clock_rate = 16000; |
| 467 | codecs[*count].channel_cnt = 1; |
| 468 | (*count)++; |
| 469 | } |
| 470 | |
| 471 | return PJ_SUCCESS; |
| 472 | } |
| 473 | |
| 474 | |
| 475 | /* |
| 476 | * Allocate a new AMR codec instance. |
| 477 | */ |
| 478 | static pj_status_t amr_alloc_codec( pjmedia_codec_factory *factory, |
| 479 | const pjmedia_codec_info *id, |
| 480 | pjmedia_codec **p_codec) |
| 481 | { |
| 482 | pj_pool_t *pool; |
| 483 | pjmedia_codec *codec; |
| 484 | struct amr_data *amr_data; |
| 485 | pj_status_t status; |
| 486 | |
| 487 | PJ_ASSERT_RETURN(factory && id && p_codec, PJ_EINVAL); |
| 488 | PJ_ASSERT_RETURN(factory == &amr_codec_factory.base, PJ_EINVAL); |
| 489 | |
| 490 | pool = pjmedia_endpt_create_pool(amr_codec_factory.endpt, "amr-inst", |
| 491 | 512, 512); |
| 492 | |
| 493 | codec = PJ_POOL_ZALLOC_T(pool, pjmedia_codec); |
| 494 | PJ_ASSERT_RETURN(codec != NULL, PJ_ENOMEM); |
| 495 | codec->op = &amr_op; |
| 496 | codec->factory = factory; |
| 497 | |
| 498 | amr_data = PJ_POOL_ZALLOC_T(pool, struct amr_data); |
| 499 | codec->codec_data = amr_data; |
| 500 | amr_data->pool = pool; |
| 501 | |
| 502 | #if USE_PJMEDIA_PLC |
| 503 | /* Create PLC */ |
| 504 | status = pjmedia_plc_create(pool, id->clock_rate, |
| 505 | id->clock_rate * FRAME_LENGTH_MS / 1000, 0, |
| 506 | &amr_data->plc); |
| 507 | if (status != PJ_SUCCESS) { |
| 508 | return status; |
| 509 | } |
| 510 | #else |
| 511 | PJ_UNUSED_ARG(status); |
| 512 | #endif |
| 513 | *p_codec = codec; |
| 514 | return PJ_SUCCESS; |
| 515 | } |
| 516 | |
| 517 | |
| 518 | /* |
| 519 | * Free codec. |
| 520 | */ |
| 521 | static pj_status_t amr_dealloc_codec( pjmedia_codec_factory *factory, |
| 522 | pjmedia_codec *codec ) |
| 523 | { |
| 524 | struct amr_data *amr_data; |
| 525 | |
| 526 | PJ_ASSERT_RETURN(factory && codec, PJ_EINVAL); |
| 527 | PJ_ASSERT_RETURN(factory == &amr_codec_factory.base, PJ_EINVAL); |
| 528 | |
| 529 | amr_data = (struct amr_data*) codec->codec_data; |
| 530 | |
| 531 | /* Close codec, if it's not closed. */ |
| 532 | amr_codec_close(codec); |
| 533 | |
| 534 | pj_pool_release(amr_data->pool); |
| 535 | amr_data = NULL; |
| 536 | |
| 537 | return PJ_SUCCESS; |
| 538 | } |
| 539 | |
| 540 | /* |
| 541 | * Init codec. |
| 542 | */ |
| 543 | static pj_status_t amr_codec_init( pjmedia_codec *codec, |
| 544 | pj_pool_t *pool ) |
| 545 | { |
| 546 | PJ_UNUSED_ARG(codec); |
| 547 | PJ_UNUSED_ARG(pool); |
| 548 | return PJ_SUCCESS; |
| 549 | } |
| 550 | |
| 551 | |
| 552 | /* |
| 553 | * Open codec. |
| 554 | */ |
| 555 | static pj_status_t amr_codec_open( pjmedia_codec *codec, |
| 556 | pjmedia_codec_param *attr ) |
| 557 | { |
| 558 | struct amr_data *amr_data = (struct amr_data*) codec->codec_data; |
| 559 | pjmedia_codec_amr_pack_setting *setting; |
| 560 | unsigned i; |
| 561 | pj_uint8_t octet_align = 0; |
| 562 | pj_int8_t enc_mode; |
| 563 | const pj_str_t STR_FMTP_OCTET_ALIGN = {"octet-align", 11}; |
| 564 | unsigned idx; |
| 565 | |
| 566 | PJ_ASSERT_RETURN(codec && attr, PJ_EINVAL); |
| 567 | PJ_ASSERT_RETURN(amr_data != NULL, PJ_EINVALIDOP); |
| 568 | |
| 569 | idx = (attr->info.clock_rate <= 8000? IDX_AMR_NB: IDX_AMR_WB); |
| 570 | enc_mode = pjmedia_codec_amr_get_mode(attr->info.avg_bps); |
| 571 | pj_assert(enc_mode >= 0 && enc_mode < amr_bitrates_size[idx]); |
| 572 | |
| 573 | /* Check octet-align */ |
| 574 | for (i = 0; i < attr->setting.dec_fmtp.cnt; ++i) { |
| 575 | if (pj_stricmp(&attr->setting.dec_fmtp.param[i].name, |
| 576 | &STR_FMTP_OCTET_ALIGN) == 0) |
| 577 | { |
| 578 | octet_align = (pj_uint8_t) |
| 579 | (pj_strtoul(&attr->setting.dec_fmtp.param[i].val)); |
| 580 | break; |
| 581 | } |
| 582 | } |
| 583 | |
| 584 | /* Check mode-set */ |
| 585 | for (i = 0; i < attr->setting.enc_fmtp.cnt; ++i) { |
| 586 | const pj_str_t STR_FMTP_MODE_SET = {"mode-set", 8}; |
| 587 | |
| 588 | if (pj_stricmp(&attr->setting.enc_fmtp.param[i].name, |
| 589 | &STR_FMTP_MODE_SET) == 0) |
| 590 | { |
| 591 | const char *p; |
| 592 | pj_size_t l; |
| 593 | pj_int8_t diff = 99; |
| 594 | |
| 595 | /* Encoding mode is chosen based on local default mode setting: |
| 596 | * - if local default mode is included in the mode-set, use it |
| 597 | * - otherwise, find the closest mode to local default mode; |
| 598 | * if there are two closest modes, prefer to use the higher |
| 599 | * one, e.g: local default mode is 4, the mode-set param |
| 600 | * contains '2,3,5,6', then 5 will be chosen. |
| 601 | */ |
| 602 | p = pj_strbuf(&attr->setting.enc_fmtp.param[i].val); |
| 603 | l = pj_strlen(&attr->setting.enc_fmtp.param[i].val); |
| 604 | while (l--) { |
| 605 | if (*p>='0' && *p<=('0'+amr_bitrates_size[idx]-1)) { |
| 606 | pj_int8_t tmp = *p - '0' - enc_mode; |
| 607 | |
| 608 | if (PJ_ABS(diff) > PJ_ABS(tmp) || |
| 609 | (PJ_ABS(diff) == PJ_ABS(tmp) && tmp > diff)) |
| 610 | { |
| 611 | diff = tmp; |
| 612 | if (diff == 0) break; |
| 613 | } |
| 614 | } |
| 615 | ++p; |
| 616 | } |
| 617 | PJ_ASSERT_RETURN(diff != 99, PJMEDIA_CODEC_EFAILED); |
| 618 | |
| 619 | enc_mode = enc_mode + diff; |
| 620 | |
| 621 | break; |
| 622 | } |
| 623 | } |
| 624 | |
| 625 | amr_data->clock_rate = attr->info.clock_rate; |
| 626 | amr_data->vad_enabled = (attr->setting.vad != 0); |
| 627 | amr_data->plc_enabled = (attr->setting.plc != 0); |
| 628 | amr_data->enc_mode = enc_mode; |
| 629 | |
| 630 | if (idx == IDX_AMR_NB) { |
| 631 | #ifdef USE_AMRNB |
| 632 | amr_data->encoder = Encoder_Interface_init(amr_data->vad_enabled); |
| 633 | #endif |
| 634 | } else { |
| 635 | #ifdef USE_AMRWB |
| 636 | amr_data->encoder = E_IF_init(); |
| 637 | #endif |
| 638 | } |
| 639 | if (amr_data->encoder == NULL) { |
| 640 | TRACE_((THIS_FILE, "Encoder initialization failed")); |
| 641 | amr_codec_close(codec); |
| 642 | return PJMEDIA_CODEC_EFAILED; |
| 643 | } |
| 644 | setting = &amr_data->enc_setting; |
| 645 | pj_bzero(setting, sizeof(pjmedia_codec_amr_pack_setting)); |
| 646 | setting->amr_nb = (idx == IDX_AMR_NB? 1: 0); |
| 647 | setting->reorder = 0; |
| 648 | setting->octet_aligned = octet_align; |
| 649 | setting->cmr = 15; |
| 650 | |
| 651 | if (idx == IDX_AMR_NB) { |
| 652 | #ifdef USE_AMRNB |
| 653 | amr_data->decoder = Decoder_Interface_init(); |
| 654 | #endif |
| 655 | } else { |
| 656 | #ifdef USE_AMRWB |
| 657 | amr_data->decoder = D_IF_init(); |
| 658 | #endif |
| 659 | } |
| 660 | if (amr_data->decoder == NULL) { |
| 661 | TRACE_((THIS_FILE, "Decoder initialization failed")); |
| 662 | amr_codec_close(codec); |
| 663 | return PJMEDIA_CODEC_EFAILED; |
| 664 | } |
| 665 | setting = &amr_data->dec_setting; |
| 666 | pj_bzero(setting, sizeof(pjmedia_codec_amr_pack_setting)); |
| 667 | setting->amr_nb = (idx == IDX_AMR_NB? 1: 0); |
| 668 | setting->reorder = 0; |
| 669 | setting->octet_aligned = octet_align; |
| 670 | |
| 671 | TRACE_((THIS_FILE, "AMR codec allocated: clockrate=%d vad=%d, plc=%d," |
| 672 | " bitrate=%d", amr_data->clock_rate, |
| 673 | amr_data->vad_enabled, amr_data->plc_enabled, |
| 674 | amr_bitrates[idx][amr_data->enc_mode])); |
| 675 | return PJ_SUCCESS; |
| 676 | } |
| 677 | |
| 678 | |
| 679 | /* |
| 680 | * Close codec. |
| 681 | */ |
| 682 | static pj_status_t amr_codec_close( pjmedia_codec *codec ) |
| 683 | { |
| 684 | struct amr_data *amr_data; |
| 685 | |
| 686 | PJ_ASSERT_RETURN(codec, PJ_EINVAL); |
| 687 | |
| 688 | amr_data = (struct amr_data*) codec->codec_data; |
| 689 | PJ_ASSERT_RETURN(amr_data != NULL, PJ_EINVALIDOP); |
| 690 | |
| 691 | if (amr_data->encoder) { |
| 692 | if (amr_data->enc_setting.amr_nb) { |
| 693 | #ifdef USE_AMRNB |
| 694 | Encoder_Interface_exit(amr_data->encoder); |
| 695 | #endif |
| 696 | } else { |
| 697 | #ifdef USE_AMRWB |
| 698 | E_IF_exit(amr_data->encoder); |
| 699 | #endif |
| 700 | } |
| 701 | amr_data->encoder = NULL; |
| 702 | } |
| 703 | |
| 704 | if (amr_data->decoder) { |
| 705 | if (amr_data->dec_setting.amr_nb) { |
| 706 | #ifdef USE_AMRNB |
| 707 | Decoder_Interface_exit(amr_data->decoder); |
| 708 | #endif |
| 709 | } else { |
| 710 | #ifdef USE_AMRWB |
| 711 | D_IF_exit(amr_data->decoder); |
| 712 | #endif |
| 713 | } |
| 714 | amr_data->decoder = NULL; |
| 715 | } |
| 716 | |
| 717 | TRACE_((THIS_FILE, "AMR codec closed")); |
| 718 | return PJ_SUCCESS; |
| 719 | } |
| 720 | |
| 721 | |
| 722 | /* |
| 723 | * Modify codec settings. |
| 724 | */ |
| 725 | static pj_status_t amr_codec_modify( pjmedia_codec *codec, |
| 726 | const pjmedia_codec_param *attr ) |
| 727 | { |
| 728 | struct amr_data *amr_data = (struct amr_data*) codec->codec_data; |
| 729 | pj_bool_t prev_vad_state; |
| 730 | |
| 731 | pj_assert(amr_data != NULL); |
| 732 | pj_assert(amr_data->encoder != NULL && amr_data->decoder != NULL); |
| 733 | |
| 734 | prev_vad_state = amr_data->vad_enabled; |
| 735 | amr_data->vad_enabled = (attr->setting.vad != 0); |
| 736 | amr_data->plc_enabled = (attr->setting.plc != 0); |
| 737 | |
| 738 | if (amr_data->enc_setting.amr_nb && |
| 739 | prev_vad_state != amr_data->vad_enabled) |
| 740 | { |
| 741 | /* Reinit AMR encoder to update VAD setting */ |
| 742 | TRACE_((THIS_FILE, "Reiniting AMR encoder to update VAD setting.")); |
| 743 | #ifdef USE_AMRNB |
| 744 | Encoder_Interface_exit(amr_data->encoder); |
| 745 | amr_data->encoder = Encoder_Interface_init(amr_data->vad_enabled); |
| 746 | #endif |
| 747 | if (amr_data->encoder == NULL) { |
| 748 | TRACE_((THIS_FILE, "Encoder_Interface_init() failed")); |
| 749 | amr_codec_close(codec); |
| 750 | return PJMEDIA_CODEC_EFAILED; |
| 751 | } |
| 752 | } |
| 753 | |
| 754 | TRACE_((THIS_FILE, "AMR codec modified: vad=%d, plc=%d", |
| 755 | amr_data->vad_enabled, amr_data->plc_enabled)); |
| 756 | return PJ_SUCCESS; |
| 757 | } |
| 758 | |
| 759 | |
| 760 | /* |
| 761 | * Get frames in the packet. |
| 762 | */ |
| 763 | static pj_status_t amr_codec_parse( pjmedia_codec *codec, |
| 764 | void *pkt, |
| 765 | pj_size_t pkt_size, |
| 766 | const pj_timestamp *ts, |
| 767 | unsigned *frame_cnt, |
| 768 | pjmedia_frame frames[]) |
| 769 | { |
| 770 | struct amr_data *amr_data = (struct amr_data*) codec->codec_data; |
| 771 | pj_uint8_t cmr; |
| 772 | pj_status_t status; |
| 773 | unsigned idx = (amr_data->enc_setting.amr_nb? 0: 1); |
| 774 | |
| 775 | status = pjmedia_codec_amr_parse(pkt, pkt_size, ts, &amr_data->dec_setting, |
| 776 | frames, frame_cnt, &cmr); |
| 777 | if (status != PJ_SUCCESS) |
| 778 | return status; |
| 779 | |
| 780 | /* Check for Change Mode Request. */ |
| 781 | if (cmr < amr_bitrates_size[idx] && amr_data->enc_mode != cmr) { |
| 782 | amr_data->enc_mode = cmr; |
| 783 | TRACE_((THIS_FILE, "AMR encoder switched mode to %d (%dbps)", |
| 784 | amr_data->enc_mode, |
| 785 | amr_bitrates[idx][amr_data->enc_mode])); |
| 786 | } |
| 787 | |
| 788 | return PJ_SUCCESS; |
| 789 | } |
| 790 | |
| 791 | |
| 792 | /* |
| 793 | * Encode frame. |
| 794 | */ |
| 795 | static pj_status_t amr_codec_encode( pjmedia_codec *codec, |
| 796 | const struct pjmedia_frame *input, |
| 797 | unsigned output_buf_len, |
| 798 | struct pjmedia_frame *output) |
| 799 | { |
| 800 | struct amr_data *amr_data = (struct amr_data*) codec->codec_data; |
| 801 | unsigned char *bitstream; |
| 802 | pj_int16_t *speech; |
| 803 | unsigned nsamples, samples_per_frame; |
| 804 | enum {MAX_FRAMES_PER_PACKET = 16}; |
| 805 | pjmedia_frame frames[MAX_FRAMES_PER_PACKET]; |
| 806 | pj_uint8_t *p; |
| 807 | unsigned i, out_size = 0, nframes = 0; |
| 808 | pj_size_t payload_len; |
| 809 | unsigned dtx_cnt, sid_cnt; |
| 810 | pj_status_t status; |
| 811 | |
| 812 | pj_assert(amr_data != NULL); |
| 813 | PJ_ASSERT_RETURN(input && output, PJ_EINVAL); |
| 814 | |
| 815 | nsamples = input->size >> 1; |
| 816 | samples_per_frame = amr_data->clock_rate * FRAME_LENGTH_MS / 1000; |
| 817 | PJ_ASSERT_RETURN(nsamples % samples_per_frame == 0, |
| 818 | PJMEDIA_CODEC_EPCMFRMINLEN); |
| 819 | |
| 820 | nframes = nsamples / samples_per_frame; |
| 821 | PJ_ASSERT_RETURN(nframes <= MAX_FRAMES_PER_PACKET, |
| 822 | PJMEDIA_CODEC_EFRMTOOSHORT); |
| 823 | |
| 824 | /* Encode the frames */ |
| 825 | speech = (pj_int16_t*)input->buf; |
| 826 | bitstream = (unsigned char*)output->buf; |
| 827 | while (nsamples >= samples_per_frame) { |
| 828 | int size; |
| 829 | if (amr_data->enc_setting.amr_nb) { |
| 830 | #ifdef USE_AMRNB |
| 831 | size = Encoder_Interface_Encode (amr_data->encoder, |
| 832 | amr_data->enc_mode, |
| 833 | speech, bitstream, 0); |
| 834 | #else |
| 835 | size = 0; |
| 836 | #endif |
| 837 | } else { |
| 838 | #ifdef USE_AMRWB |
| 839 | size = E_IF_encode (amr_data->encoder, amr_data->enc_mode, |
| 840 | speech, bitstream, 0); |
| 841 | #else |
| 842 | size = 0; |
| 843 | #endif |
| 844 | } |
| 845 | if (size == 0) { |
| 846 | output->size = 0; |
| 847 | output->buf = NULL; |
| 848 | output->type = PJMEDIA_FRAME_TYPE_NONE; |
| 849 | TRACE_((THIS_FILE, "AMR encode() failed")); |
| 850 | return PJMEDIA_CODEC_EFAILED; |
| 851 | } |
| 852 | nsamples -= samples_per_frame; |
| 853 | speech += samples_per_frame; |
| 854 | bitstream += size; |
| 855 | out_size += size; |
| 856 | TRACE_((THIS_FILE, "AMR encode(): mode=%d, size=%d", |
| 857 | amr_data->enc_mode, out_size)); |
| 858 | } |
| 859 | |
| 860 | /* Pack payload */ |
| 861 | p = (pj_uint8_t*)output->buf + output_buf_len - out_size; |
| 862 | pj_memmove(p, output->buf, out_size); |
| 863 | dtx_cnt = sid_cnt = 0; |
| 864 | for (i = 0; i < nframes; ++i) { |
| 865 | pjmedia_codec_amr_bit_info *info = (pjmedia_codec_amr_bit_info*) |
| 866 | &frames[i].bit_info; |
| 867 | info->frame_type = (pj_uint8_t)((*p >> 3) & 0x0F); |
| 868 | info->good_quality = (pj_uint8_t)((*p >> 2) & 0x01); |
| 869 | info->mode = (pj_int8_t)amr_data->enc_mode; |
| 870 | info->start_bit = 0; |
| 871 | frames[i].buf = p + 1; |
| 872 | if (amr_data->enc_setting.amr_nb) { |
| 873 | frames[i].size = (info->frame_type <= 8)? |
| 874 | pjmedia_codec_amrnb_framelen[info->frame_type] : 0; |
| 875 | } else { |
| 876 | frames[i].size = (info->frame_type <= 9)? |
| 877 | pjmedia_codec_amrwb_framelen[info->frame_type] : 0; |
| 878 | } |
| 879 | p += frames[i].size + 1; |
| 880 | |
| 881 | /* Count the number of SID and DTX frames */ |
| 882 | if (info->frame_type == 15) /* DTX*/ |
| 883 | ++dtx_cnt; |
| 884 | else if (info->frame_type == 8) /* SID */ |
| 885 | ++sid_cnt; |
| 886 | } |
| 887 | |
| 888 | /* VA generates DTX frames as DTX+SID frames switching quickly and it |
| 889 | * seems that the SID frames occur too often (assuming the purpose is |
| 890 | * only for keeping NAT alive?). So let's modify the behavior a bit. |
| 891 | * Only an SID frame will be sent every PJMEDIA_CODEC_MAX_SILENCE_PERIOD |
| 892 | * milliseconds. |
| 893 | */ |
| 894 | if (sid_cnt + dtx_cnt == nframes) { |
| 895 | pj_int32_t dtx_duration; |
| 896 | |
| 897 | dtx_duration = pj_timestamp_diff32(&amr_data->last_tx, |
| 898 | &input->timestamp); |
| 899 | if (PJMEDIA_CODEC_MAX_SILENCE_PERIOD == -1 || |
| 900 | dtx_duration < PJMEDIA_CODEC_MAX_SILENCE_PERIOD* |
| 901 | amr_data->clock_rate/1000) |
| 902 | { |
| 903 | output->size = 0; |
| 904 | output->type = PJMEDIA_FRAME_TYPE_NONE; |
| 905 | output->timestamp = input->timestamp; |
| 906 | return PJ_SUCCESS; |
| 907 | } |
| 908 | } |
| 909 | |
| 910 | payload_len = output_buf_len; |
| 911 | |
| 912 | status = pjmedia_codec_amr_pack(frames, nframes, &amr_data->enc_setting, |
| 913 | output->buf, &payload_len); |
| 914 | if (status != PJ_SUCCESS) { |
| 915 | output->size = 0; |
| 916 | output->buf = NULL; |
| 917 | output->type = PJMEDIA_FRAME_TYPE_NONE; |
| 918 | TRACE_((THIS_FILE, "Failed to pack AMR payload, status=%d", status)); |
| 919 | return status; |
| 920 | } |
| 921 | |
| 922 | output->size = payload_len; |
| 923 | output->type = PJMEDIA_FRAME_TYPE_AUDIO; |
| 924 | output->timestamp = input->timestamp; |
| 925 | |
| 926 | amr_data->last_tx = input->timestamp; |
| 927 | |
| 928 | return PJ_SUCCESS; |
| 929 | } |
| 930 | |
| 931 | |
| 932 | /* |
| 933 | * Decode frame. |
| 934 | */ |
| 935 | static pj_status_t amr_codec_decode( pjmedia_codec *codec, |
| 936 | const struct pjmedia_frame *input, |
| 937 | unsigned output_buf_len, |
| 938 | struct pjmedia_frame *output) |
| 939 | { |
| 940 | struct amr_data *amr_data = (struct amr_data*) codec->codec_data; |
| 941 | pjmedia_frame input_; |
| 942 | pjmedia_codec_amr_bit_info *info; |
| 943 | unsigned out_size; |
| 944 | /* AMR decoding buffer: AMR max frame size + 1 byte header. */ |
| 945 | unsigned char bitstream[61]; |
| 946 | |
| 947 | pj_assert(amr_data != NULL); |
| 948 | PJ_ASSERT_RETURN(input && output, PJ_EINVAL); |
| 949 | |
| 950 | out_size = amr_data->clock_rate * FRAME_LENGTH_MS / 1000 * 2; |
| 951 | if (output_buf_len < out_size) |
| 952 | return PJMEDIA_CODEC_EPCMTOOSHORT; |
| 953 | |
| 954 | input_.buf = &bitstream[1]; |
| 955 | /* AMR max frame size */ |
| 956 | input_.size = (amr_data->dec_setting.amr_nb? 31: 60); |
| 957 | pjmedia_codec_amr_predecode(input, &amr_data->dec_setting, &input_); |
| 958 | info = (pjmedia_codec_amr_bit_info*)&input_.bit_info; |
| 959 | |
| 960 | /* VA AMR decoder requires frame info in the first byte. */ |
| 961 | bitstream[0] = (info->frame_type << 3) | (info->good_quality << 2); |
| 962 | |
| 963 | TRACE_((THIS_FILE, "AMR decode(): mode=%d, ft=%d, size=%d", |
| 964 | info->mode, info->frame_type, input_.size)); |
| 965 | |
| 966 | /* Decode */ |
| 967 | if (amr_data->dec_setting.amr_nb) { |
| 968 | #ifdef USE_AMRNB |
| 969 | Decoder_Interface_Decode(amr_data->decoder, bitstream, |
| 970 | (pj_int16_t*)output->buf, 0); |
| 971 | #endif |
| 972 | } else { |
| 973 | #ifdef USE_AMRWB |
| 974 | D_IF_decode(amr_data->decoder, bitstream, |
| 975 | (pj_int16_t*)output->buf, 0); |
| 976 | #endif |
| 977 | } |
| 978 | |
| 979 | output->size = out_size; |
| 980 | output->type = PJMEDIA_FRAME_TYPE_AUDIO; |
| 981 | output->timestamp = input->timestamp; |
| 982 | |
| 983 | #if USE_PJMEDIA_PLC |
| 984 | if (amr_data->plc_enabled) |
| 985 | pjmedia_plc_save(amr_data->plc, (pj_int16_t*)output->buf); |
| 986 | #endif |
| 987 | |
| 988 | return PJ_SUCCESS; |
| 989 | } |
| 990 | |
| 991 | |
| 992 | /* |
| 993 | * Recover lost frame. |
| 994 | */ |
| 995 | #if USE_PJMEDIA_PLC |
| 996 | /* |
| 997 | * Recover lost frame. |
| 998 | */ |
| 999 | static pj_status_t amr_codec_recover( pjmedia_codec *codec, |
| 1000 | unsigned output_buf_len, |
| 1001 | struct pjmedia_frame *output) |
| 1002 | { |
| 1003 | struct amr_data *amr_data = codec->codec_data; |
| 1004 | unsigned out_size = amr_data->clock_rate * FRAME_LENGTH_MS / 1000 * 2; |
| 1005 | |
| 1006 | TRACE_((THIS_FILE, "amr_codec_recover")); |
| 1007 | |
| 1008 | PJ_ASSERT_RETURN(amr_data->plc_enabled, PJ_EINVALIDOP); |
| 1009 | |
| 1010 | PJ_ASSERT_RETURN(output_buf_len >= out_size, PJMEDIA_CODEC_EPCMTOOSHORT); |
| 1011 | |
| 1012 | pjmedia_plc_generate(amr_data->plc, (pj_int16_t*)output->buf); |
| 1013 | |
| 1014 | output->size = out_size; |
| 1015 | output->type = PJMEDIA_FRAME_TYPE_AUDIO; |
| 1016 | |
| 1017 | return PJ_SUCCESS; |
| 1018 | } |
| 1019 | #endif |
| 1020 | |
| 1021 | #if defined(_MSC_VER) && PJMEDIA_AUTO_LINK_OPENCORE_AMR_LIBS |
| 1022 | # if PJMEDIA_OPENCORE_AMR_BUILT_WITH_GCC |
| 1023 | # ifdef USE_AMRNB |
| 1024 | # pragma comment( lib, "libopencore-amrnb.a") |
| 1025 | # endif |
| 1026 | # ifdef USE_AMRWB |
| 1027 | # pragma comment( lib, "libopencore-amrwb.a") |
| 1028 | # pragma comment( lib, "libvo-amrwbenc.a") |
| 1029 | # endif |
| 1030 | # else |
| 1031 | # error Unsupported OpenCORE AMR library, fix here |
| 1032 | # endif |
| 1033 | #endif |
| 1034 | |
| 1035 | #endif |