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00026 #include "asterisk.h"
00027
00028 ASTERISK_FILE_VERSION(__FILE__, "$Revision: 293803 $")
00029
00030 #include <math.h>
00031
00032 #include "asterisk/channel.h"
00033 #include "asterisk/frame.h"
00034 #include "asterisk/module.h"
00035 #include "asterisk/rtp_engine.h"
00036 #include "asterisk/manager.h"
00037 #include "asterisk/options.h"
00038 #include "asterisk/astobj2.h"
00039 #include "asterisk/pbx.h"
00040 #include "asterisk/translate.h"
00041 #include "asterisk/netsock2.h"
00042
00043 struct ast_srtp_res *res_srtp = NULL;
00044 struct ast_srtp_policy_res *res_srtp_policy = NULL;
00045
00046
00047 struct ast_rtp_instance {
00048
00049 struct ast_rtp_engine *engine;
00050
00051 void *data;
00052
00053 int properties[AST_RTP_PROPERTY_MAX];
00054
00055 struct ast_sockaddr local_address;
00056
00057 struct ast_sockaddr remote_address;
00058
00059 struct ast_sockaddr alt_remote_address;
00060
00061 struct ast_rtp_instance *bridged;
00062
00063 struct ast_rtp_codecs codecs;
00064
00065 int timeout;
00066
00067 int holdtimeout;
00068
00069 enum ast_rtp_dtmf_mode dtmf_mode;
00070
00071 struct ast_rtp_glue *glue;
00072
00073 struct ast_channel *chan;
00074
00075 struct ast_srtp *srtp;
00076 };
00077
00078
00079 static AST_RWLIST_HEAD_STATIC(engines, ast_rtp_engine);
00080
00081
00082 static AST_RWLIST_HEAD_STATIC(glues, ast_rtp_glue);
00083
00084
00085
00086 static const struct ast_rtp_mime_type {
00087 struct ast_rtp_payload_type payload_type;
00088 char *type;
00089 char *subtype;
00090 unsigned int sample_rate;
00091 } ast_rtp_mime_types[] = {
00092 {{1, AST_FORMAT_G723_1}, "audio", "G723", 8000},
00093 {{1, AST_FORMAT_GSM}, "audio", "GSM", 8000},
00094 {{1, AST_FORMAT_ULAW}, "audio", "PCMU", 8000},
00095 {{1, AST_FORMAT_ULAW}, "audio", "G711U", 8000},
00096 {{1, AST_FORMAT_ALAW}, "audio", "PCMA", 8000},
00097 {{1, AST_FORMAT_ALAW}, "audio", "G711A", 8000},
00098 {{1, AST_FORMAT_G726}, "audio", "G726-32", 8000},
00099 {{1, AST_FORMAT_ADPCM}, "audio", "DVI4", 8000},
00100 {{1, AST_FORMAT_SLINEAR}, "audio", "L16", 8000},
00101 {{1, AST_FORMAT_SLINEAR16}, "audio", "L16", 16000},
00102 {{1, AST_FORMAT_LPC10}, "audio", "LPC", 8000},
00103 {{1, AST_FORMAT_G729A}, "audio", "G729", 8000},
00104 {{1, AST_FORMAT_G729A}, "audio", "G729A", 8000},
00105 {{1, AST_FORMAT_G729A}, "audio", "G.729", 8000},
00106 {{1, AST_FORMAT_SPEEX}, "audio", "speex", 8000},
00107 {{1, AST_FORMAT_SPEEX16}, "audio", "speex", 16000},
00108 {{1, AST_FORMAT_ILBC}, "audio", "iLBC", 8000},
00109
00110
00111
00112 {{1, AST_FORMAT_G722}, "audio", "G722", 8000},
00113 {{1, AST_FORMAT_G726_AAL2}, "audio", "AAL2-G726-32", 8000},
00114 {{0, AST_RTP_DTMF}, "audio", "telephone-event", 8000},
00115 {{0, AST_RTP_CISCO_DTMF}, "audio", "cisco-telephone-event", 8000},
00116 {{0, AST_RTP_CN}, "audio", "CN", 8000},
00117 {{1, AST_FORMAT_JPEG}, "video", "JPEG", 90000},
00118 {{1, AST_FORMAT_PNG}, "video", "PNG", 90000},
00119 {{1, AST_FORMAT_H261}, "video", "H261", 90000},
00120 {{1, AST_FORMAT_H263}, "video", "H263", 90000},
00121 {{1, AST_FORMAT_H263_PLUS}, "video", "h263-1998", 90000},
00122 {{1, AST_FORMAT_H264}, "video", "H264", 90000},
00123 {{1, AST_FORMAT_MP4_VIDEO}, "video", "MP4V-ES", 90000},
00124 {{1, AST_FORMAT_T140RED}, "text", "RED", 1000},
00125 {{1, AST_FORMAT_T140}, "text", "T140", 1000},
00126 {{1, AST_FORMAT_SIREN7}, "audio", "G7221", 16000},
00127 {{1, AST_FORMAT_SIREN14}, "audio", "G7221", 32000},
00128 {{1, AST_FORMAT_G719}, "audio", "G719", 48000},
00129 };
00130
00131
00132
00133
00134
00135
00136
00137
00138
00139
00140
00141 static const struct ast_rtp_payload_type static_RTP_PT[AST_RTP_MAX_PT] = {
00142 [0] = {1, AST_FORMAT_ULAW},
00143 #ifdef USE_DEPRECATED_G726
00144 [2] = {1, AST_FORMAT_G726},
00145 #endif
00146 [3] = {1, AST_FORMAT_GSM},
00147 [4] = {1, AST_FORMAT_G723_1},
00148 [5] = {1, AST_FORMAT_ADPCM},
00149 [6] = {1, AST_FORMAT_ADPCM},
00150 [7] = {1, AST_FORMAT_LPC10},
00151 [8] = {1, AST_FORMAT_ALAW},
00152 [9] = {1, AST_FORMAT_G722},
00153 [10] = {1, AST_FORMAT_SLINEAR},
00154 [11] = {1, AST_FORMAT_SLINEAR},
00155 [13] = {0, AST_RTP_CN},
00156 [16] = {1, AST_FORMAT_ADPCM},
00157 [17] = {1, AST_FORMAT_ADPCM},
00158 [18] = {1, AST_FORMAT_G729A},
00159 [19] = {0, AST_RTP_CN},
00160 [26] = {1, AST_FORMAT_JPEG},
00161 [31] = {1, AST_FORMAT_H261},
00162 [34] = {1, AST_FORMAT_H263},
00163 [97] = {1, AST_FORMAT_ILBC},
00164 [98] = {1, AST_FORMAT_H263_PLUS},
00165 [99] = {1, AST_FORMAT_H264},
00166 [101] = {0, AST_RTP_DTMF},
00167 [102] = {1, AST_FORMAT_SIREN7},
00168 [103] = {1, AST_FORMAT_H263_PLUS},
00169 [104] = {1, AST_FORMAT_MP4_VIDEO},
00170 [105] = {1, AST_FORMAT_T140RED},
00171 [106] = {1, AST_FORMAT_T140},
00172 [110] = {1, AST_FORMAT_SPEEX},
00173 [111] = {1, AST_FORMAT_G726},
00174 [112] = {1, AST_FORMAT_G726_AAL2},
00175 [115] = {1, AST_FORMAT_SIREN14},
00176 [116] = {1, AST_FORMAT_G719},
00177 [117] = {1, AST_FORMAT_SPEEX16},
00178 [118] = {1, AST_FORMAT_SLINEAR16},
00179 [121] = {0, AST_RTP_CISCO_DTMF},
00180 };
00181
00182 int ast_rtp_engine_register2(struct ast_rtp_engine *engine, struct ast_module *module)
00183 {
00184 struct ast_rtp_engine *current_engine;
00185
00186
00187 if (ast_strlen_zero(engine->name) || !engine->new || !engine->destroy || !engine->write || !engine->read) {
00188 ast_log(LOG_WARNING, "RTP Engine '%s' failed sanity check so it was not registered.\n", !ast_strlen_zero(engine->name) ? engine->name : "Unknown");
00189 return -1;
00190 }
00191
00192
00193 engine->mod = module;
00194
00195 AST_RWLIST_WRLOCK(&engines);
00196
00197
00198 AST_RWLIST_TRAVERSE(&engines, current_engine, entry) {
00199 if (!strcmp(current_engine->name, engine->name)) {
00200 ast_log(LOG_WARNING, "An RTP engine with the name '%s' has already been registered.\n", engine->name);
00201 AST_RWLIST_UNLOCK(&engines);
00202 return -1;
00203 }
00204 }
00205
00206
00207 AST_RWLIST_INSERT_TAIL(&engines, engine, entry);
00208
00209 AST_RWLIST_UNLOCK(&engines);
00210
00211 ast_verb(2, "Registered RTP engine '%s'\n", engine->name);
00212
00213 return 0;
00214 }
00215
00216 int ast_rtp_engine_unregister(struct ast_rtp_engine *engine)
00217 {
00218 struct ast_rtp_engine *current_engine = NULL;
00219
00220 AST_RWLIST_WRLOCK(&engines);
00221
00222 if ((current_engine = AST_RWLIST_REMOVE(&engines, engine, entry))) {
00223 ast_verb(2, "Unregistered RTP engine '%s'\n", engine->name);
00224 }
00225
00226 AST_RWLIST_UNLOCK(&engines);
00227
00228 return current_engine ? 0 : -1;
00229 }
00230
00231 int ast_rtp_glue_register2(struct ast_rtp_glue *glue, struct ast_module *module)
00232 {
00233 struct ast_rtp_glue *current_glue = NULL;
00234
00235 if (ast_strlen_zero(glue->type)) {
00236 return -1;
00237 }
00238
00239 glue->mod = module;
00240
00241 AST_RWLIST_WRLOCK(&glues);
00242
00243 AST_RWLIST_TRAVERSE(&glues, current_glue, entry) {
00244 if (!strcasecmp(current_glue->type, glue->type)) {
00245 ast_log(LOG_WARNING, "RTP glue with the name '%s' has already been registered.\n", glue->type);
00246 AST_RWLIST_UNLOCK(&glues);
00247 return -1;
00248 }
00249 }
00250
00251 AST_RWLIST_INSERT_TAIL(&glues, glue, entry);
00252
00253 AST_RWLIST_UNLOCK(&glues);
00254
00255 ast_verb(2, "Registered RTP glue '%s'\n", glue->type);
00256
00257 return 0;
00258 }
00259
00260 int ast_rtp_glue_unregister(struct ast_rtp_glue *glue)
00261 {
00262 struct ast_rtp_glue *current_glue = NULL;
00263
00264 AST_RWLIST_WRLOCK(&glues);
00265
00266 if ((current_glue = AST_RWLIST_REMOVE(&glues, glue, entry))) {
00267 ast_verb(2, "Unregistered RTP glue '%s'\n", glue->type);
00268 }
00269
00270 AST_RWLIST_UNLOCK(&glues);
00271
00272 return current_glue ? 0 : -1;
00273 }
00274
00275 static void instance_destructor(void *obj)
00276 {
00277 struct ast_rtp_instance *instance = obj;
00278
00279
00280 if (instance->data && instance->engine->destroy(instance)) {
00281 ast_debug(1, "Engine '%s' failed to destroy RTP instance '%p'\n", instance->engine->name, instance);
00282 return;
00283 }
00284
00285 if (instance->srtp) {
00286 res_srtp->destroy(instance->srtp);
00287 }
00288
00289
00290 ast_module_unref(instance->engine->mod);
00291
00292 ast_debug(1, "Destroyed RTP instance '%p'\n", instance);
00293 }
00294
00295 int ast_rtp_instance_destroy(struct ast_rtp_instance *instance)
00296 {
00297 ao2_ref(instance, -1);
00298
00299 return 0;
00300 }
00301
00302 struct ast_rtp_instance *ast_rtp_instance_new(const char *engine_name,
00303 struct sched_context *sched, const struct ast_sockaddr *sa,
00304 void *data)
00305 {
00306 struct ast_sockaddr address = {{0,}};
00307 struct ast_rtp_instance *instance = NULL;
00308 struct ast_rtp_engine *engine = NULL;
00309
00310 AST_RWLIST_RDLOCK(&engines);
00311
00312
00313 if (!ast_strlen_zero(engine_name)) {
00314 AST_RWLIST_TRAVERSE(&engines, engine, entry) {
00315 if (!strcmp(engine->name, engine_name)) {
00316 break;
00317 }
00318 }
00319 } else {
00320 engine = AST_RWLIST_FIRST(&engines);
00321 }
00322
00323
00324 if (!engine) {
00325 ast_log(LOG_ERROR, "No RTP engine was found. Do you have one loaded?\n");
00326 AST_RWLIST_UNLOCK(&engines);
00327 return NULL;
00328 }
00329
00330
00331 ast_module_ref(engine->mod);
00332
00333 AST_RWLIST_UNLOCK(&engines);
00334
00335
00336 if (!(instance = ao2_alloc(sizeof(*instance), instance_destructor))) {
00337 ast_module_unref(engine->mod);
00338 return NULL;
00339 }
00340 instance->engine = engine;
00341 ast_sockaddr_copy(&instance->local_address, sa);
00342 ast_sockaddr_copy(&address, sa);
00343
00344 ast_debug(1, "Using engine '%s' for RTP instance '%p'\n", engine->name, instance);
00345
00346
00347 if (instance->engine->new(instance, sched, &address, data)) {
00348 ast_debug(1, "Engine '%s' failed to setup RTP instance '%p'\n", engine->name, instance);
00349 ao2_ref(instance, -1);
00350 return NULL;
00351 }
00352
00353 ast_debug(1, "RTP instance '%p' is setup and ready to go\n", instance);
00354
00355 return instance;
00356 }
00357
00358 void ast_rtp_instance_set_data(struct ast_rtp_instance *instance, void *data)
00359 {
00360 instance->data = data;
00361 }
00362
00363 void *ast_rtp_instance_get_data(struct ast_rtp_instance *instance)
00364 {
00365 return instance->data;
00366 }
00367
00368 int ast_rtp_instance_write(struct ast_rtp_instance *instance, struct ast_frame *frame)
00369 {
00370 return instance->engine->write(instance, frame);
00371 }
00372
00373 struct ast_frame *ast_rtp_instance_read(struct ast_rtp_instance *instance, int rtcp)
00374 {
00375 return instance->engine->read(instance, rtcp);
00376 }
00377
00378 int ast_rtp_instance_set_local_address(struct ast_rtp_instance *instance,
00379 const struct ast_sockaddr *address)
00380 {
00381 ast_sockaddr_copy(&instance->local_address, address);
00382 return 0;
00383 }
00384
00385 int ast_rtp_instance_set_remote_address(struct ast_rtp_instance *instance,
00386 const struct ast_sockaddr *address)
00387 {
00388 ast_sockaddr_copy(&instance->remote_address, address);
00389
00390
00391
00392 if (instance->engine->remote_address_set) {
00393 instance->engine->remote_address_set(instance, &instance->remote_address);
00394 }
00395
00396 return 0;
00397 }
00398
00399 int ast_rtp_instance_set_alt_remote_address(struct ast_rtp_instance *instance,
00400 const struct ast_sockaddr *address)
00401 {
00402 ast_sockaddr_copy(&instance->alt_remote_address, address);
00403
00404
00405
00406 if (instance->engine->alt_remote_address_set) {
00407 instance->engine->alt_remote_address_set(instance, &instance->alt_remote_address);
00408 }
00409
00410 return 0;
00411 }
00412
00413 int ast_rtp_instance_get_and_cmp_local_address(struct ast_rtp_instance *instance,
00414 struct ast_sockaddr *address)
00415 {
00416 if (ast_sockaddr_cmp(address, &instance->local_address) != 0) {
00417 ast_sockaddr_copy(address, &instance->local_address);
00418 return 1;
00419 }
00420
00421 return 0;
00422 }
00423
00424 void ast_rtp_instance_get_local_address(struct ast_rtp_instance *instance,
00425 struct ast_sockaddr *address)
00426 {
00427 ast_sockaddr_copy(address, &instance->local_address);
00428 }
00429
00430 int ast_rtp_instance_get_and_cmp_remote_address(struct ast_rtp_instance *instance,
00431 struct ast_sockaddr *address)
00432 {
00433 if (ast_sockaddr_cmp(address, &instance->remote_address) != 0) {
00434 ast_sockaddr_copy(address, &instance->remote_address);
00435 return 1;
00436 }
00437
00438 return 0;
00439 }
00440
00441 void ast_rtp_instance_get_remote_address(struct ast_rtp_instance *instance,
00442 struct ast_sockaddr *address)
00443 {
00444 ast_sockaddr_copy(address, &instance->remote_address);
00445 }
00446
00447 void ast_rtp_instance_set_extended_prop(struct ast_rtp_instance *instance, int property, void *value)
00448 {
00449 if (instance->engine->extended_prop_set) {
00450 instance->engine->extended_prop_set(instance, property, value);
00451 }
00452 }
00453
00454 void *ast_rtp_instance_get_extended_prop(struct ast_rtp_instance *instance, int property)
00455 {
00456 if (instance->engine->extended_prop_get) {
00457 return instance->engine->extended_prop_get(instance, property);
00458 }
00459
00460 return NULL;
00461 }
00462
00463 void ast_rtp_instance_set_prop(struct ast_rtp_instance *instance, enum ast_rtp_property property, int value)
00464 {
00465 instance->properties[property] = value;
00466
00467 if (instance->engine->prop_set) {
00468 instance->engine->prop_set(instance, property, value);
00469 }
00470 }
00471
00472 int ast_rtp_instance_get_prop(struct ast_rtp_instance *instance, enum ast_rtp_property property)
00473 {
00474 return instance->properties[property];
00475 }
00476
00477 struct ast_rtp_codecs *ast_rtp_instance_get_codecs(struct ast_rtp_instance *instance)
00478 {
00479 return &instance->codecs;
00480 }
00481
00482 void ast_rtp_codecs_payloads_clear(struct ast_rtp_codecs *codecs, struct ast_rtp_instance *instance)
00483 {
00484 int i;
00485
00486 for (i = 0; i < AST_RTP_MAX_PT; i++) {
00487 codecs->payloads[i].asterisk_format = 0;
00488 codecs->payloads[i].code = 0;
00489 if (instance && instance->engine && instance->engine->payload_set) {
00490 instance->engine->payload_set(instance, i, 0, 0);
00491 }
00492 }
00493 }
00494
00495 void ast_rtp_codecs_payloads_default(struct ast_rtp_codecs *codecs, struct ast_rtp_instance *instance)
00496 {
00497 int i;
00498
00499 for (i = 0; i < AST_RTP_MAX_PT; i++) {
00500 if (static_RTP_PT[i].code) {
00501 codecs->payloads[i].asterisk_format = static_RTP_PT[i].asterisk_format;
00502 codecs->payloads[i].code = static_RTP_PT[i].code;
00503 if (instance && instance->engine && instance->engine->payload_set) {
00504 instance->engine->payload_set(instance, i, codecs->payloads[i].asterisk_format, codecs->payloads[i].code);
00505 }
00506 }
00507 }
00508 }
00509
00510 void ast_rtp_codecs_payloads_copy(struct ast_rtp_codecs *src, struct ast_rtp_codecs *dest, struct ast_rtp_instance *instance)
00511 {
00512 int i;
00513
00514 for (i = 0; i < AST_RTP_MAX_PT; i++) {
00515 if (src->payloads[i].code) {
00516 ast_debug(2, "Copying payload %d from %p to %p\n", i, src, dest);
00517 dest->payloads[i].asterisk_format = src->payloads[i].asterisk_format;
00518 dest->payloads[i].code = src->payloads[i].code;
00519 if (instance && instance->engine && instance->engine->payload_set) {
00520 instance->engine->payload_set(instance, i, dest->payloads[i].asterisk_format, dest->payloads[i].code);
00521 }
00522 }
00523 }
00524 }
00525
00526 void ast_rtp_codecs_payloads_set_m_type(struct ast_rtp_codecs *codecs, struct ast_rtp_instance *instance, int payload)
00527 {
00528 if (payload < 0 || payload >= AST_RTP_MAX_PT || !static_RTP_PT[payload].code) {
00529 return;
00530 }
00531
00532 codecs->payloads[payload].asterisk_format = static_RTP_PT[payload].asterisk_format;
00533 codecs->payloads[payload].code = static_RTP_PT[payload].code;
00534
00535 ast_debug(1, "Setting payload %d based on m type on %p\n", payload, codecs);
00536
00537 if (instance && instance->engine && instance->engine->payload_set) {
00538 instance->engine->payload_set(instance, payload, codecs->payloads[payload].asterisk_format, codecs->payloads[payload].code);
00539 }
00540 }
00541
00542 int ast_rtp_codecs_payloads_set_rtpmap_type_rate(struct ast_rtp_codecs *codecs, struct ast_rtp_instance *instance, int pt,
00543 char *mimetype, char *mimesubtype,
00544 enum ast_rtp_options options,
00545 unsigned int sample_rate)
00546 {
00547 unsigned int i;
00548 int found = 0;
00549
00550 if (pt < 0 || pt >= AST_RTP_MAX_PT)
00551 return -1;
00552
00553 for (i = 0; i < ARRAY_LEN(ast_rtp_mime_types); ++i) {
00554 const struct ast_rtp_mime_type *t = &ast_rtp_mime_types[i];
00555
00556 if (strcasecmp(mimesubtype, t->subtype)) {
00557 continue;
00558 }
00559
00560 if (strcasecmp(mimetype, t->type)) {
00561 continue;
00562 }
00563
00564
00565
00566
00567 if (sample_rate && t->sample_rate &&
00568 (sample_rate != t->sample_rate)) {
00569 continue;
00570 }
00571
00572 found = 1;
00573 codecs->payloads[pt] = t->payload_type;
00574
00575 if ((t->payload_type.code == AST_FORMAT_G726) &&
00576 t->payload_type.asterisk_format &&
00577 (options & AST_RTP_OPT_G726_NONSTANDARD)) {
00578 codecs->payloads[pt].code = AST_FORMAT_G726_AAL2;
00579 }
00580
00581 if (instance && instance->engine && instance->engine->payload_set) {
00582 instance->engine->payload_set(instance, pt, codecs->payloads[i].asterisk_format, codecs->payloads[i].code);
00583 }
00584
00585 break;
00586 }
00587
00588 return (found ? 0 : -2);
00589 }
00590
00591 int ast_rtp_codecs_payloads_set_rtpmap_type(struct ast_rtp_codecs *codecs, struct ast_rtp_instance *instance, int payload, char *mimetype, char *mimesubtype, enum ast_rtp_options options)
00592 {
00593 return ast_rtp_codecs_payloads_set_rtpmap_type_rate(codecs, instance, payload, mimetype, mimesubtype, options, 0);
00594 }
00595
00596 void ast_rtp_codecs_payloads_unset(struct ast_rtp_codecs *codecs, struct ast_rtp_instance *instance, int payload)
00597 {
00598 if (payload < 0 || payload >= AST_RTP_MAX_PT) {
00599 return;
00600 }
00601
00602 ast_debug(2, "Unsetting payload %d on %p\n", payload, codecs);
00603
00604 codecs->payloads[payload].asterisk_format = 0;
00605 codecs->payloads[payload].code = 0;
00606
00607 if (instance && instance->engine && instance->engine->payload_set) {
00608 instance->engine->payload_set(instance, payload, 0, 0);
00609 }
00610 }
00611
00612 struct ast_rtp_payload_type ast_rtp_codecs_payload_lookup(struct ast_rtp_codecs *codecs, int payload)
00613 {
00614 struct ast_rtp_payload_type result = { .asterisk_format = 0, };
00615
00616 if (payload < 0 || payload >= AST_RTP_MAX_PT) {
00617 return result;
00618 }
00619
00620 result.asterisk_format = codecs->payloads[payload].asterisk_format;
00621 result.code = codecs->payloads[payload].code;
00622
00623 if (!result.code) {
00624 result = static_RTP_PT[payload];
00625 }
00626
00627 return result;
00628 }
00629
00630 void ast_rtp_codecs_payload_formats(struct ast_rtp_codecs *codecs, format_t *astformats, int *nonastformats)
00631 {
00632 int i;
00633
00634 *astformats = *nonastformats = 0;
00635
00636 for (i = 0; i < AST_RTP_MAX_PT; i++) {
00637 if (codecs->payloads[i].code) {
00638 ast_debug(1, "Incorporating payload %d on %p\n", i, codecs);
00639 }
00640 if (codecs->payloads[i].asterisk_format) {
00641 *astformats |= codecs->payloads[i].code;
00642 } else {
00643 *nonastformats |= codecs->payloads[i].code;
00644 }
00645 }
00646 }
00647
00648 int ast_rtp_codecs_payload_code(struct ast_rtp_codecs *codecs, const int asterisk_format, const format_t code)
00649 {
00650 int i;
00651
00652 for (i = 0; i < AST_RTP_MAX_PT; i++) {
00653 if (codecs->payloads[i].asterisk_format == asterisk_format && codecs->payloads[i].code == code) {
00654 return i;
00655 }
00656 }
00657
00658 for (i = 0; i < AST_RTP_MAX_PT; i++) {
00659 if (static_RTP_PT[i].asterisk_format == asterisk_format && static_RTP_PT[i].code == code) {
00660 return i;
00661 }
00662 }
00663
00664 return -1;
00665 }
00666
00667 const char *ast_rtp_lookup_mime_subtype2(const int asterisk_format, const format_t code, enum ast_rtp_options options)
00668 {
00669 int i;
00670
00671 for (i = 0; i < ARRAY_LEN(ast_rtp_mime_types); i++) {
00672 if (ast_rtp_mime_types[i].payload_type.code == code && ast_rtp_mime_types[i].payload_type.asterisk_format == asterisk_format) {
00673 if (asterisk_format && (code == AST_FORMAT_G726_AAL2) && (options & AST_RTP_OPT_G726_NONSTANDARD)) {
00674 return "G726-32";
00675 } else {
00676 return ast_rtp_mime_types[i].subtype;
00677 }
00678 }
00679 }
00680
00681 return "";
00682 }
00683
00684 unsigned int ast_rtp_lookup_sample_rate2(int asterisk_format, format_t code)
00685 {
00686 unsigned int i;
00687
00688 for (i = 0; i < ARRAY_LEN(ast_rtp_mime_types); ++i) {
00689 if ((ast_rtp_mime_types[i].payload_type.code == code) && (ast_rtp_mime_types[i].payload_type.asterisk_format == asterisk_format)) {
00690 return ast_rtp_mime_types[i].sample_rate;
00691 }
00692 }
00693
00694 return 0;
00695 }
00696
00697 char *ast_rtp_lookup_mime_multiple2(struct ast_str *buf, const format_t capability, const int asterisk_format, enum ast_rtp_options options)
00698 {
00699 format_t format;
00700 int found = 0;
00701
00702 if (!buf) {
00703 return NULL;
00704 }
00705
00706 ast_str_append(&buf, 0, "0x%llx (", (unsigned long long) capability);
00707
00708 for (format = 1; format < AST_RTP_MAX; format <<= 1) {
00709 if (capability & format) {
00710 const char *name = ast_rtp_lookup_mime_subtype2(asterisk_format, format, options);
00711 ast_str_append(&buf, 0, "%s|", name);
00712 found = 1;
00713 }
00714 }
00715
00716 ast_str_append(&buf, 0, "%s", found ? ")" : "nothing)");
00717
00718 return ast_str_buffer(buf);
00719 }
00720
00721 void ast_rtp_codecs_packetization_set(struct ast_rtp_codecs *codecs, struct ast_rtp_instance *instance, struct ast_codec_pref *prefs)
00722 {
00723 codecs->pref = *prefs;
00724
00725 if (instance && instance->engine->packetization_set) {
00726 instance->engine->packetization_set(instance, &instance->codecs.pref);
00727 }
00728 }
00729
00730 int ast_rtp_instance_dtmf_begin(struct ast_rtp_instance *instance, char digit)
00731 {
00732 return instance->engine->dtmf_begin ? instance->engine->dtmf_begin(instance, digit) : -1;
00733 }
00734
00735 int ast_rtp_instance_dtmf_end(struct ast_rtp_instance *instance, char digit)
00736 {
00737 return instance->engine->dtmf_end ? instance->engine->dtmf_end(instance, digit) : -1;
00738 }
00739 int ast_rtp_instance_dtmf_end_with_duration(struct ast_rtp_instance *instance, char digit, unsigned int duration)
00740 {
00741 return instance->engine->dtmf_end_with_duration ? instance->engine->dtmf_end_with_duration(instance, digit, duration) : -1;
00742 }
00743
00744 int ast_rtp_instance_dtmf_mode_set(struct ast_rtp_instance *instance, enum ast_rtp_dtmf_mode dtmf_mode)
00745 {
00746 if (!instance->engine->dtmf_mode_set || instance->engine->dtmf_mode_set(instance, dtmf_mode)) {
00747 return -1;
00748 }
00749
00750 instance->dtmf_mode = dtmf_mode;
00751
00752 return 0;
00753 }
00754
00755 enum ast_rtp_dtmf_mode ast_rtp_instance_dtmf_mode_get(struct ast_rtp_instance *instance)
00756 {
00757 return instance->dtmf_mode;
00758 }
00759
00760 void ast_rtp_instance_update_source(struct ast_rtp_instance *instance)
00761 {
00762 if (instance->engine->update_source) {
00763 instance->engine->update_source(instance);
00764 }
00765 }
00766
00767 void ast_rtp_instance_change_source(struct ast_rtp_instance *instance)
00768 {
00769 if (instance->engine->change_source) {
00770 instance->engine->change_source(instance);
00771 }
00772 }
00773
00774 int ast_rtp_instance_set_qos(struct ast_rtp_instance *instance, int tos, int cos, const char *desc)
00775 {
00776 return instance->engine->qos ? instance->engine->qos(instance, tos, cos, desc) : -1;
00777 }
00778
00779 void ast_rtp_instance_stop(struct ast_rtp_instance *instance)
00780 {
00781 if (instance->engine->stop) {
00782 instance->engine->stop(instance);
00783 }
00784 }
00785
00786 int ast_rtp_instance_fd(struct ast_rtp_instance *instance, int rtcp)
00787 {
00788 return instance->engine->fd ? instance->engine->fd(instance, rtcp) : -1;
00789 }
00790
00791 struct ast_rtp_glue *ast_rtp_instance_get_glue(const char *type)
00792 {
00793 struct ast_rtp_glue *glue = NULL;
00794
00795 AST_RWLIST_RDLOCK(&glues);
00796
00797 AST_RWLIST_TRAVERSE(&glues, glue, entry) {
00798 if (!strcasecmp(glue->type, type)) {
00799 break;
00800 }
00801 }
00802
00803 AST_RWLIST_UNLOCK(&glues);
00804
00805 return glue;
00806 }
00807
00808 static enum ast_bridge_result local_bridge_loop(struct ast_channel *c0, struct ast_channel *c1, struct ast_rtp_instance *instance0, struct ast_rtp_instance *instance1, int timeoutms, int flags, struct ast_frame **fo, struct ast_channel **rc, void *pvt0, void *pvt1)
00809 {
00810 enum ast_bridge_result res = AST_BRIDGE_FAILED;
00811 struct ast_channel *who = NULL, *other = NULL, *cs[3] = { NULL, };
00812 struct ast_frame *fr = NULL;
00813
00814
00815 if (instance0->engine->local_bridge && instance0->engine->local_bridge(instance0, instance1)) {
00816 ast_debug(1, "Failed to locally bridge %s to %s, backing out.\n", c0->name, c1->name);
00817 ast_channel_unlock(c0);
00818 ast_channel_unlock(c1);
00819 return AST_BRIDGE_FAILED_NOWARN;
00820 }
00821 if (instance1->engine->local_bridge && instance1->engine->local_bridge(instance1, instance0)) {
00822 ast_debug(1, "Failed to locally bridge %s to %s, backing out.\n", c1->name, c0->name);
00823 if (instance0->engine->local_bridge) {
00824 instance0->engine->local_bridge(instance0, NULL);
00825 }
00826 ast_channel_unlock(c0);
00827 ast_channel_unlock(c1);
00828 return AST_BRIDGE_FAILED_NOWARN;
00829 }
00830
00831 ast_channel_unlock(c0);
00832 ast_channel_unlock(c1);
00833
00834 instance0->bridged = instance1;
00835 instance1->bridged = instance0;
00836
00837 ast_poll_channel_add(c0, c1);
00838
00839
00840 cs[0] = c0;
00841 cs[1] = c1;
00842 cs[2] = NULL;
00843 for (;;) {
00844
00845 if ((c0->rawreadformat != c1->rawwriteformat) || (c1->rawreadformat != c0->rawwriteformat)) {
00846 ast_debug(1, "rtp-engine-local-bridge: Oooh, formats changed, backing out\n");
00847 res = AST_BRIDGE_FAILED_NOWARN;
00848 break;
00849 }
00850
00851 if ((c0->tech_pvt != pvt0) ||
00852 (c1->tech_pvt != pvt1) ||
00853 (c0->masq || c0->masqr || c1->masq || c1->masqr) ||
00854 (c0->monitor || c0->audiohooks || c1->monitor || c1->audiohooks)) {
00855 ast_debug(1, "rtp-engine-local-bridge: Oooh, something is weird, backing out\n");
00856
00857 if ((c0->masq || c0->masqr) && (fr = ast_read(c0))) {
00858 ast_frfree(fr);
00859 }
00860 if ((c1->masq || c1->masqr) && (fr = ast_read(c1))) {
00861 ast_frfree(fr);
00862 }
00863 res = AST_BRIDGE_RETRY;
00864 break;
00865 }
00866
00867 if (!(who = ast_waitfor_n(cs, 2, &timeoutms))) {
00868 if (!timeoutms) {
00869 res = AST_BRIDGE_RETRY;
00870 break;
00871 }
00872 ast_debug(2, "rtp-engine-local-bridge: Ooh, empty read...\n");
00873 if (ast_check_hangup(c0) || ast_check_hangup(c1)) {
00874 break;
00875 }
00876 continue;
00877 }
00878
00879 fr = ast_read(who);
00880 other = (who == c0) ? c1 : c0;
00881
00882 if (!fr || ((fr->frametype == AST_FRAME_DTMF_BEGIN || fr->frametype == AST_FRAME_DTMF_END) &&
00883 ((who == c0) && (flags & AST_BRIDGE_DTMF_CHANNEL_0)) |
00884 ((who == c1) && (flags & AST_BRIDGE_DTMF_CHANNEL_1)))) {
00885
00886 *fo = fr;
00887 *rc = who;
00888 ast_debug(1, "rtp-engine-local-bridge: Ooh, got a %s\n", fr ? "digit" : "hangup");
00889 res = AST_BRIDGE_COMPLETE;
00890 break;
00891 } else if ((fr->frametype == AST_FRAME_CONTROL) && !(flags & AST_BRIDGE_IGNORE_SIGS)) {
00892 if ((fr->subclass.integer == AST_CONTROL_HOLD) ||
00893 (fr->subclass.integer == AST_CONTROL_UNHOLD) ||
00894 (fr->subclass.integer == AST_CONTROL_VIDUPDATE) ||
00895 (fr->subclass.integer == AST_CONTROL_SRCUPDATE) ||
00896 (fr->subclass.integer == AST_CONTROL_T38_PARAMETERS)) {
00897
00898 if (fr->subclass.integer == AST_CONTROL_HOLD) {
00899 if (instance0->engine->local_bridge) {
00900 instance0->engine->local_bridge(instance0, NULL);
00901 }
00902 if (instance1->engine->local_bridge) {
00903 instance1->engine->local_bridge(instance1, NULL);
00904 }
00905 instance0->bridged = NULL;
00906 instance1->bridged = NULL;
00907 } else if (fr->subclass.integer == AST_CONTROL_UNHOLD) {
00908 if (instance0->engine->local_bridge) {
00909 instance0->engine->local_bridge(instance0, instance1);
00910 }
00911 if (instance1->engine->local_bridge) {
00912 instance1->engine->local_bridge(instance1, instance0);
00913 }
00914 instance0->bridged = instance1;
00915 instance1->bridged = instance0;
00916 }
00917 ast_indicate_data(other, fr->subclass.integer, fr->data.ptr, fr->datalen);
00918 ast_frfree(fr);
00919 } else if (fr->subclass.integer == AST_CONTROL_CONNECTED_LINE) {
00920 if (ast_channel_connected_line_macro(who, other, fr, other == c0, 1)) {
00921 ast_indicate_data(other, fr->subclass.integer, fr->data.ptr, fr->datalen);
00922 }
00923 ast_frfree(fr);
00924 } else if (fr->subclass.integer == AST_CONTROL_REDIRECTING) {
00925 if (ast_channel_redirecting_macro(who, other, fr, other == c0, 1)) {
00926 ast_indicate_data(other, fr->subclass.integer, fr->data.ptr, fr->datalen);
00927 }
00928 ast_frfree(fr);
00929 } else {
00930 *fo = fr;
00931 *rc = who;
00932 ast_debug(1, "rtp-engine-local-bridge: Got a FRAME_CONTROL (%d) frame on channel %s\n", fr->subclass.integer, who->name);
00933 res = AST_BRIDGE_COMPLETE;
00934 break;
00935 }
00936 } else {
00937 if ((fr->frametype == AST_FRAME_DTMF_BEGIN) ||
00938 (fr->frametype == AST_FRAME_DTMF_END) ||
00939 (fr->frametype == AST_FRAME_VOICE) ||
00940 (fr->frametype == AST_FRAME_VIDEO) ||
00941 (fr->frametype == AST_FRAME_IMAGE) ||
00942 (fr->frametype == AST_FRAME_HTML) ||
00943 (fr->frametype == AST_FRAME_MODEM) ||
00944 (fr->frametype == AST_FRAME_TEXT)) {
00945 ast_write(other, fr);
00946 }
00947
00948 ast_frfree(fr);
00949 }
00950
00951 cs[2] = cs[0];
00952 cs[0] = cs[1];
00953 cs[1] = cs[2];
00954 }
00955
00956
00957 if (instance0->engine->local_bridge) {
00958 instance0->engine->local_bridge(instance0, NULL);
00959 }
00960 if (instance1->engine->local_bridge) {
00961 instance1->engine->local_bridge(instance1, NULL);
00962 }
00963
00964 instance0->bridged = NULL;
00965 instance1->bridged = NULL;
00966
00967 ast_poll_channel_del(c0, c1);
00968
00969 return res;
00970 }
00971
00972 static enum ast_bridge_result remote_bridge_loop(struct ast_channel *c0, struct ast_channel *c1, struct ast_rtp_instance *instance0, struct ast_rtp_instance *instance1,
00973 struct ast_rtp_instance *vinstance0, struct ast_rtp_instance *vinstance1, struct ast_rtp_instance *tinstance0,
00974 struct ast_rtp_instance *tinstance1, struct ast_rtp_glue *glue0, struct ast_rtp_glue *glue1, format_t codec0, format_t codec1, int timeoutms,
00975 int flags, struct ast_frame **fo, struct ast_channel **rc, void *pvt0, void *pvt1)
00976 {
00977 enum ast_bridge_result res = AST_BRIDGE_FAILED;
00978 struct ast_channel *who = NULL, *other = NULL, *cs[3] = { NULL, };
00979 format_t oldcodec0 = codec0, oldcodec1 = codec1;
00980 struct ast_sockaddr ac1 = {{0,}}, vac1 = {{0,}}, tac1 = {{0,}}, ac0 = {{0,}}, vac0 = {{0,}}, tac0 = {{0,}};
00981 struct ast_sockaddr t1 = {{0,}}, vt1 = {{0,}}, tt1 = {{0,}}, t0 = {{0,}}, vt0 = {{0,}}, tt0 = {{0,}};
00982 struct ast_frame *fr = NULL;
00983
00984
00985 if (!(glue0->update_peer(c0, instance1, vinstance1, tinstance1, codec1, 0))) {
00986 ast_rtp_instance_get_remote_address(instance1, &ac1);
00987 if (vinstance1) {
00988 ast_rtp_instance_get_remote_address(vinstance1, &vac1);
00989 }
00990 if (tinstance1) {
00991 ast_rtp_instance_get_remote_address(tinstance1, &tac1);
00992 }
00993 } else {
00994 ast_log(LOG_WARNING, "Channel '%s' failed to talk to '%s'\n", c0->name, c1->name);
00995 }
00996
00997
00998 if (!(glue1->update_peer(c1, instance0, vinstance0, tinstance0, codec0, 0))) {
00999 ast_rtp_instance_get_remote_address(instance0, &ac0);
01000 if (vinstance0) {
01001 ast_rtp_instance_get_remote_address(instance0, &vac0);
01002 }
01003 if (tinstance0) {
01004 ast_rtp_instance_get_remote_address(instance0, &tac0);
01005 }
01006 } else {
01007 ast_log(LOG_WARNING, "Channel '%s' failed to talk to '%s'\n", c1->name, c0->name);
01008 }
01009
01010 ast_channel_unlock(c0);
01011 ast_channel_unlock(c1);
01012
01013 instance0->bridged = instance1;
01014 instance1->bridged = instance0;
01015
01016 ast_poll_channel_add(c0, c1);
01017
01018
01019 cs[0] = c0;
01020 cs[1] = c1;
01021 cs[2] = NULL;
01022 for (;;) {
01023
01024 if ((c0->tech_pvt != pvt0) ||
01025 (c1->tech_pvt != pvt1) ||
01026 (c0->masq || c0->masqr || c1->masq || c1->masqr) ||
01027 (c0->monitor || c0->audiohooks || c1->monitor || c1->audiohooks)) {
01028 ast_debug(1, "Oooh, something is weird, backing out\n");
01029 res = AST_BRIDGE_RETRY;
01030 break;
01031 }
01032
01033
01034 ast_rtp_instance_get_remote_address(instance1, &t1);
01035 if (vinstance1) {
01036 ast_rtp_instance_get_remote_address(vinstance1, &vt1);
01037 }
01038 if (tinstance1) {
01039 ast_rtp_instance_get_remote_address(tinstance1, &tt1);
01040 }
01041 if (glue1->get_codec) {
01042 codec1 = glue1->get_codec(c1);
01043 }
01044
01045 ast_rtp_instance_get_remote_address(instance0, &t0);
01046 if (vinstance0) {
01047 ast_rtp_instance_get_remote_address(vinstance0, &vt0);
01048 }
01049 if (tinstance0) {
01050 ast_rtp_instance_get_remote_address(tinstance0, &tt0);
01051 }
01052 if (glue0->get_codec) {
01053 codec0 = glue0->get_codec(c0);
01054 }
01055
01056 if ((ast_sockaddr_cmp(&t1, &ac1)) ||
01057 (vinstance1 && ast_sockaddr_cmp(&vt1, &vac1)) ||
01058 (tinstance1 && ast_sockaddr_cmp(&tt1, &tac1)) ||
01059 (codec1 != oldcodec1)) {
01060 ast_debug(1, "Oooh, '%s' changed end address to %s (format %s)\n",
01061 c1->name, ast_sockaddr_stringify(&t1),
01062 ast_getformatname(codec1));
01063 ast_debug(1, "Oooh, '%s' changed end vaddress to %s (format %s)\n",
01064 c1->name, ast_sockaddr_stringify(&vt1),
01065 ast_getformatname(codec1));
01066 ast_debug(1, "Oooh, '%s' changed end taddress to %s (format %s)\n",
01067 c1->name, ast_sockaddr_stringify(&tt1),
01068 ast_getformatname(codec1));
01069 ast_debug(1, "Oooh, '%s' was %s/(format %s)\n",
01070 c1->name, ast_sockaddr_stringify(&ac1),
01071 ast_getformatname(oldcodec1));
01072 ast_debug(1, "Oooh, '%s' was %s/(format %s)\n",
01073 c1->name, ast_sockaddr_stringify(&vac1),
01074 ast_getformatname(oldcodec1));
01075 ast_debug(1, "Oooh, '%s' was %s/(format %s)\n",
01076 c1->name, ast_sockaddr_stringify(&tac1),
01077 ast_getformatname(oldcodec1));
01078 if (glue0->update_peer(c0,
01079 ast_sockaddr_isnull(&t1) ? NULL : instance1,
01080 ast_sockaddr_isnull(&vt1) ? NULL : vinstance1,
01081 ast_sockaddr_isnull(&tt1) ? NULL : tinstance1,
01082 codec1, 0)) {
01083 ast_log(LOG_WARNING, "Channel '%s' failed to update to '%s'\n", c0->name, c1->name);
01084 }
01085 ast_sockaddr_copy(&ac1, &t1);
01086 ast_sockaddr_copy(&vac1, &vt1);
01087 ast_sockaddr_copy(&tac1, &tt1);
01088 oldcodec1 = codec1;
01089 }
01090 if ((ast_sockaddr_cmp(&t0, &ac0)) ||
01091 (vinstance0 && ast_sockaddr_cmp(&vt0, &vac0)) ||
01092 (tinstance0 && ast_sockaddr_cmp(&tt0, &tac0)) ||
01093 (codec0 != oldcodec0)) {
01094 ast_debug(1, "Oooh, '%s' changed end address to %s (format %s)\n",
01095 c0->name, ast_sockaddr_stringify(&t0),
01096 ast_getformatname(codec0));
01097 ast_debug(1, "Oooh, '%s' was %s/(format %s)\n",
01098 c0->name, ast_sockaddr_stringify(&ac0),
01099 ast_getformatname(oldcodec0));
01100 if (glue1->update_peer(c1, t0.len ? instance0 : NULL,
01101 vt0.len ? vinstance0 : NULL,
01102 tt0.len ? tinstance0 : NULL,
01103 codec0, 0)) {
01104 ast_log(LOG_WARNING, "Channel '%s' failed to update to '%s'\n", c1->name, c0->name);
01105 }
01106 ast_sockaddr_copy(&ac0, &t0);
01107 ast_sockaddr_copy(&vac0, &vt0);
01108 ast_sockaddr_copy(&tac0, &tt0);
01109 oldcodec0 = codec0;
01110 }
01111
01112
01113 if (!(who = ast_waitfor_n(cs, 2, &timeoutms))) {
01114 if (!timeoutms) {
01115 res = AST_BRIDGE_RETRY;
01116 break;
01117 }
01118 ast_debug(1, "Ooh, empty read...\n");
01119 if (ast_check_hangup(c0) || ast_check_hangup(c1)) {
01120 break;
01121 }
01122 continue;
01123 }
01124 fr = ast_read(who);
01125 other = (who == c0) ? c1 : c0;
01126 if (!fr || ((fr->frametype == AST_FRAME_DTMF_BEGIN || fr->frametype == AST_FRAME_DTMF_END) &&
01127 (((who == c0) && (flags & AST_BRIDGE_DTMF_CHANNEL_0)) ||
01128 ((who == c1) && (flags & AST_BRIDGE_DTMF_CHANNEL_1))))) {
01129
01130 *fo = fr;
01131 *rc = who;
01132 ast_debug(1, "Oooh, got a %s\n", fr ? "digit" : "hangup");
01133 res = AST_BRIDGE_COMPLETE;
01134 break;
01135 } else if ((fr->frametype == AST_FRAME_CONTROL) && !(flags & AST_BRIDGE_IGNORE_SIGS)) {
01136 if ((fr->subclass.integer == AST_CONTROL_HOLD) ||
01137 (fr->subclass.integer == AST_CONTROL_UNHOLD) ||
01138 (fr->subclass.integer == AST_CONTROL_VIDUPDATE) ||
01139 (fr->subclass.integer == AST_CONTROL_SRCUPDATE) ||
01140 (fr->subclass.integer == AST_CONTROL_T38_PARAMETERS)) {
01141 if (fr->subclass.integer == AST_CONTROL_HOLD) {
01142
01143 if (who == c0) {
01144 glue1->update_peer(c1, NULL, NULL, NULL, 0, 0);
01145 } else {
01146 glue0->update_peer(c0, NULL, NULL, NULL, 0, 0);
01147 }
01148 } else if (fr->subclass.integer == AST_CONTROL_UNHOLD) {
01149
01150 if (who == c0) {
01151 glue1->update_peer(c1, instance0, vinstance0, tinstance0, codec0, 0);
01152 } else {
01153 glue0->update_peer(c0, instance1, vinstance1, tinstance1, codec1, 0);
01154 }
01155 }
01156
01157 ast_rtp_instance_get_remote_address(instance0, &t0);
01158 ast_sockaddr_copy(&ac0, &t0);
01159 ast_rtp_instance_get_remote_address(instance1, &t1);
01160 ast_sockaddr_copy(&ac1, &t1);
01161
01162 if (glue0->get_codec && c0->tech_pvt) {
01163 oldcodec0 = codec0 = glue0->get_codec(c0);
01164 }
01165 if (glue1->get_codec && c1->tech_pvt) {
01166 oldcodec1 = codec1 = glue1->get_codec(c1);
01167 }
01168 ast_indicate_data(other, fr->subclass.integer, fr->data.ptr, fr->datalen);
01169 ast_frfree(fr);
01170 } else if (fr->subclass.integer == AST_CONTROL_CONNECTED_LINE) {
01171 if (ast_channel_connected_line_macro(who, other, fr, other == c0, 1)) {
01172 ast_indicate_data(other, fr->subclass.integer, fr->data.ptr, fr->datalen);
01173 }
01174 ast_frfree(fr);
01175 } else if (fr->subclass.integer == AST_CONTROL_REDIRECTING) {
01176 if (ast_channel_redirecting_macro(who, other, fr, other == c0, 1)) {
01177 ast_indicate_data(other, fr->subclass.integer, fr->data.ptr, fr->datalen);
01178 }
01179 ast_frfree(fr);
01180 } else {
01181 *fo = fr;
01182 *rc = who;
01183 ast_debug(1, "Got a FRAME_CONTROL (%d) frame on channel %s\n", fr->subclass.integer, who->name);
01184 return AST_BRIDGE_COMPLETE;
01185 }
01186 } else {
01187 if ((fr->frametype == AST_FRAME_DTMF_BEGIN) ||
01188 (fr->frametype == AST_FRAME_DTMF_END) ||
01189 (fr->frametype == AST_FRAME_VOICE) ||
01190 (fr->frametype == AST_FRAME_VIDEO) ||
01191 (fr->frametype == AST_FRAME_IMAGE) ||
01192 (fr->frametype == AST_FRAME_HTML) ||
01193 (fr->frametype == AST_FRAME_MODEM) ||
01194 (fr->frametype == AST_FRAME_TEXT)) {
01195 ast_write(other, fr);
01196 }
01197 ast_frfree(fr);
01198 }
01199
01200 cs[2] = cs[0];
01201 cs[0] = cs[1];
01202 cs[1] = cs[2];
01203 }
01204
01205 if (glue0->update_peer(c0, NULL, NULL, NULL, 0, 0)) {
01206 ast_log(LOG_WARNING, "Channel '%s' failed to break RTP bridge\n", c0->name);
01207 }
01208 if (glue1->update_peer(c1, NULL, NULL, NULL, 0, 0)) {
01209 ast_log(LOG_WARNING, "Channel '%s' failed to break RTP bridge\n", c1->name);
01210 }
01211
01212 instance0->bridged = NULL;
01213 instance1->bridged = NULL;
01214
01215 ast_poll_channel_del(c0, c1);
01216
01217 return res;
01218 }
01219
01220
01221
01222
01223 static void unref_instance_cond(struct ast_rtp_instance **instance)
01224 {
01225 if (*instance) {
01226 ao2_ref(*instance, -1);
01227 *instance = NULL;
01228 }
01229 }
01230
01231 enum ast_bridge_result ast_rtp_instance_bridge(struct ast_channel *c0, struct ast_channel *c1, int flags, struct ast_frame **fo, struct ast_channel **rc, int timeoutms)
01232 {
01233 struct ast_rtp_instance *instance0 = NULL, *instance1 = NULL,
01234 *vinstance0 = NULL, *vinstance1 = NULL,
01235 *tinstance0 = NULL, *tinstance1 = NULL;
01236 struct ast_rtp_glue *glue0, *glue1;
01237 struct ast_sockaddr addr1, addr2;
01238 enum ast_rtp_glue_result audio_glue0_res = AST_RTP_GLUE_RESULT_FORBID, video_glue0_res = AST_RTP_GLUE_RESULT_FORBID, text_glue0_res = AST_RTP_GLUE_RESULT_FORBID;
01239 enum ast_rtp_glue_result audio_glue1_res = AST_RTP_GLUE_RESULT_FORBID, video_glue1_res = AST_RTP_GLUE_RESULT_FORBID, text_glue1_res = AST_RTP_GLUE_RESULT_FORBID;
01240 enum ast_bridge_result res = AST_BRIDGE_FAILED;
01241 format_t codec0 = 0, codec1 = 0;
01242 int unlock_chans = 1;
01243
01244
01245 ast_channel_lock(c0);
01246 while (ast_channel_trylock(c1)) {
01247 ast_channel_unlock(c0);
01248 usleep(1);
01249 ast_channel_lock(c0);
01250 }
01251
01252
01253 if (ast_check_hangup(c0) || ast_check_hangup(c1)) {
01254 ast_log(LOG_WARNING, "Got hangup while attempting to bridge '%s' and '%s'\n", c0->name, c1->name);
01255 goto done;
01256 }
01257
01258
01259 if (!(glue0 = ast_rtp_instance_get_glue(c0->tech->type)) || !(glue1 = ast_rtp_instance_get_glue(c1->tech->type))) {
01260 ast_debug(1, "Can't find native functions for channel '%s'\n", glue0 ? c1->name : c0->name);
01261 goto done;
01262 }
01263
01264 audio_glue0_res = glue0->get_rtp_info(c0, &instance0);
01265 video_glue0_res = glue0->get_vrtp_info ? glue0->get_vrtp_info(c0, &vinstance0) : AST_RTP_GLUE_RESULT_FORBID;
01266 text_glue0_res = glue0->get_trtp_info ? glue0->get_trtp_info(c0, &tinstance0) : AST_RTP_GLUE_RESULT_FORBID;
01267
01268 audio_glue1_res = glue1->get_rtp_info(c1, &instance1);
01269 video_glue1_res = glue1->get_vrtp_info ? glue1->get_vrtp_info(c1, &vinstance1) : AST_RTP_GLUE_RESULT_FORBID;
01270 text_glue1_res = glue1->get_trtp_info ? glue1->get_trtp_info(c1, &tinstance1) : AST_RTP_GLUE_RESULT_FORBID;
01271
01272
01273 if (video_glue0_res != AST_RTP_GLUE_RESULT_FORBID && (audio_glue0_res != AST_RTP_GLUE_RESULT_REMOTE || video_glue0_res != AST_RTP_GLUE_RESULT_REMOTE)) {
01274 audio_glue0_res = AST_RTP_GLUE_RESULT_FORBID;
01275 }
01276 if (video_glue1_res != AST_RTP_GLUE_RESULT_FORBID && (audio_glue1_res != AST_RTP_GLUE_RESULT_REMOTE || video_glue1_res != AST_RTP_GLUE_RESULT_REMOTE)) {
01277 audio_glue1_res = AST_RTP_GLUE_RESULT_FORBID;
01278 }
01279
01280
01281 if (audio_glue0_res == AST_RTP_GLUE_RESULT_FORBID || audio_glue1_res == AST_RTP_GLUE_RESULT_FORBID) {
01282 res = AST_BRIDGE_FAILED_NOWARN;
01283 goto done;
01284 }
01285
01286
01287
01288 ast_rtp_instance_get_remote_address(instance0, &addr1);
01289 ast_rtp_instance_get_remote_address(instance1, &addr2);
01290
01291 if (addr1.ss.ss_family != addr2.ss.ss_family ||
01292 (ast_sockaddr_is_ipv4_mapped(&addr1) != ast_sockaddr_is_ipv4_mapped(&addr2))) {
01293 audio_glue0_res = AST_RTP_GLUE_RESULT_LOCAL;
01294 audio_glue1_res = AST_RTP_GLUE_RESULT_LOCAL;
01295 }
01296
01297
01298 if ((flags & AST_BRIDGE_DTMF_CHANNEL_0) && instance0->properties[AST_RTP_PROPERTY_DTMF]) {
01299 res = AST_BRIDGE_FAILED_NOWARN;
01300 goto done;
01301 }
01302 if ((flags & AST_BRIDGE_DTMF_CHANNEL_1) && instance1->properties[AST_RTP_PROPERTY_DTMF]) {
01303 res = AST_BRIDGE_FAILED_NOWARN;
01304 goto done;
01305 }
01306
01307
01308 if ((audio_glue0_res == AST_RTP_GLUE_RESULT_LOCAL || audio_glue1_res == AST_RTP_GLUE_RESULT_LOCAL) && ((instance0->engine->local_bridge != instance1->engine->local_bridge) || (instance0->engine->dtmf_compatible && !instance0->engine->dtmf_compatible(c0, instance0, c1, instance1)))) {
01309 res = AST_BRIDGE_FAILED_NOWARN;
01310 goto done;
01311 }
01312
01313
01314 codec0 = glue0->get_codec ? glue0->get_codec(c0) : 0;
01315 codec1 = glue1->get_codec ? glue1->get_codec(c1) : 0;
01316 if (codec0 && codec1 && !(codec0 & codec1)) {
01317 ast_debug(1, "Channel codec0 = %s is not codec1 = %s, cannot native bridge in RTP.\n", ast_getformatname(codec0), ast_getformatname(codec1));
01318 res = AST_BRIDGE_FAILED_NOWARN;
01319 goto done;
01320 }
01321
01322 instance0->glue = glue0;
01323 instance1->glue = glue1;
01324 instance0->chan = c0;
01325 instance1->chan = c1;
01326
01327
01328 if (audio_glue0_res == AST_RTP_GLUE_RESULT_LOCAL || audio_glue1_res == AST_RTP_GLUE_RESULT_LOCAL) {
01329 ast_verbose(VERBOSE_PREFIX_3 "Locally bridging %s and %s\n", c0->name, c1->name);
01330 res = local_bridge_loop(c0, c1, instance0, instance1, timeoutms, flags, fo, rc, c0->tech_pvt, c1->tech_pvt);
01331 } else {
01332 ast_verbose(VERBOSE_PREFIX_3 "Remotely bridging %s and %s\n", c0->name, c1->name);
01333 res = remote_bridge_loop(c0, c1, instance0, instance1, vinstance0, vinstance1,
01334 tinstance0, tinstance1, glue0, glue1, codec0, codec1, timeoutms, flags,
01335 fo, rc, c0->tech_pvt, c1->tech_pvt);
01336 }
01337
01338 instance0->glue = NULL;
01339 instance1->glue = NULL;
01340 instance0->chan = NULL;
01341 instance1->chan = NULL;
01342
01343 unlock_chans = 0;
01344
01345 done:
01346 if (unlock_chans) {
01347 ast_channel_unlock(c0);
01348 ast_channel_unlock(c1);
01349 }
01350
01351 unref_instance_cond(&instance0);
01352 unref_instance_cond(&instance1);
01353 unref_instance_cond(&vinstance0);
01354 unref_instance_cond(&vinstance1);
01355 unref_instance_cond(&tinstance0);
01356 unref_instance_cond(&tinstance1);
01357
01358 return res;
01359 }
01360
01361 struct ast_rtp_instance *ast_rtp_instance_get_bridged(struct ast_rtp_instance *instance)
01362 {
01363 return instance->bridged;
01364 }
01365
01366 void ast_rtp_instance_early_bridge_make_compatible(struct ast_channel *c0, struct ast_channel *c1)
01367 {
01368 struct ast_rtp_instance *instance0 = NULL, *instance1 = NULL,
01369 *vinstance0 = NULL, *vinstance1 = NULL,
01370 *tinstance0 = NULL, *tinstance1 = NULL;
01371 struct ast_rtp_glue *glue0, *glue1;
01372 enum ast_rtp_glue_result audio_glue0_res = AST_RTP_GLUE_RESULT_FORBID, video_glue0_res = AST_RTP_GLUE_RESULT_FORBID, text_glue0_res = AST_RTP_GLUE_RESULT_FORBID;
01373 enum ast_rtp_glue_result audio_glue1_res = AST_RTP_GLUE_RESULT_FORBID, video_glue1_res = AST_RTP_GLUE_RESULT_FORBID, text_glue1_res = AST_RTP_GLUE_RESULT_FORBID;
01374 format_t codec0 = 0, codec1 = 0;
01375 int res = 0;
01376
01377
01378 ast_channel_lock(c0);
01379 while (ast_channel_trylock(c1)) {
01380 ast_channel_unlock(c0);
01381 usleep(1);
01382 ast_channel_lock(c0);
01383 }
01384
01385
01386 if (!(glue0 = ast_rtp_instance_get_glue(c0->tech->type)) || !(glue1 = ast_rtp_instance_get_glue(c1->tech->type))) {
01387 ast_debug(1, "Can't find native functions for channel '%s'\n", glue0 ? c1->name : c0->name);
01388 goto done;
01389 }
01390
01391 audio_glue0_res = glue0->get_rtp_info(c0, &instance0);
01392 video_glue0_res = glue0->get_vrtp_info ? glue0->get_vrtp_info(c0, &vinstance0) : AST_RTP_GLUE_RESULT_FORBID;
01393 text_glue0_res = glue0->get_trtp_info ? glue0->get_trtp_info(c0, &tinstance0) : AST_RTP_GLUE_RESULT_FORBID;
01394
01395 audio_glue1_res = glue1->get_rtp_info(c1, &instance1);
01396 video_glue1_res = glue1->get_vrtp_info ? glue1->get_vrtp_info(c1, &vinstance1) : AST_RTP_GLUE_RESULT_FORBID;
01397 text_glue1_res = glue1->get_trtp_info ? glue1->get_trtp_info(c1, &tinstance1) : AST_RTP_GLUE_RESULT_FORBID;
01398
01399
01400 if (video_glue0_res != AST_RTP_GLUE_RESULT_FORBID && (audio_glue0_res != AST_RTP_GLUE_RESULT_REMOTE || video_glue0_res != AST_RTP_GLUE_RESULT_REMOTE)) {
01401 audio_glue0_res = AST_RTP_GLUE_RESULT_FORBID;
01402 }
01403 if (video_glue1_res != AST_RTP_GLUE_RESULT_FORBID && (audio_glue1_res != AST_RTP_GLUE_RESULT_REMOTE || video_glue1_res != AST_RTP_GLUE_RESULT_REMOTE)) {
01404 audio_glue1_res = AST_RTP_GLUE_RESULT_FORBID;
01405 }
01406 if (audio_glue0_res == AST_RTP_GLUE_RESULT_REMOTE && (video_glue0_res == AST_RTP_GLUE_RESULT_FORBID || video_glue0_res == AST_RTP_GLUE_RESULT_REMOTE) && glue0->get_codec) {
01407 codec0 = glue0->get_codec(c0);
01408 }
01409 if (audio_glue1_res == AST_RTP_GLUE_RESULT_REMOTE && (video_glue1_res == AST_RTP_GLUE_RESULT_FORBID || video_glue1_res == AST_RTP_GLUE_RESULT_REMOTE) && glue1->get_codec) {
01410 codec1 = glue1->get_codec(c1);
01411 }
01412
01413
01414 if (audio_glue0_res != AST_RTP_GLUE_RESULT_REMOTE || audio_glue1_res != AST_RTP_GLUE_RESULT_REMOTE) {
01415 goto done;
01416 }
01417
01418
01419 if (!(codec0 & codec1)) {
01420 goto done;
01421 }
01422
01423 ast_rtp_codecs_payloads_copy(&instance0->codecs, &instance1->codecs, instance1);
01424
01425 if (vinstance0 && vinstance1) {
01426 ast_rtp_codecs_payloads_copy(&vinstance0->codecs, &vinstance1->codecs, vinstance1);
01427 }
01428 if (tinstance0 && tinstance1) {
01429 ast_rtp_codecs_payloads_copy(&tinstance0->codecs, &tinstance1->codecs, tinstance1);
01430 }
01431
01432 res = 0;
01433
01434 done:
01435 ast_channel_unlock(c0);
01436 ast_channel_unlock(c1);
01437
01438 unref_instance_cond(&instance0);
01439 unref_instance_cond(&instance1);
01440 unref_instance_cond(&vinstance0);
01441 unref_instance_cond(&vinstance1);
01442 unref_instance_cond(&tinstance0);
01443 unref_instance_cond(&tinstance1);
01444
01445 if (!res) {
01446 ast_debug(1, "Seeded SDP of '%s' with that of '%s'\n", c0->name, c1 ? c1->name : "<unspecified>");
01447 }
01448 }
01449
01450 int ast_rtp_instance_early_bridge(struct ast_channel *c0, struct ast_channel *c1)
01451 {
01452 struct ast_rtp_instance *instance0 = NULL, *instance1 = NULL,
01453 *vinstance0 = NULL, *vinstance1 = NULL,
01454 *tinstance0 = NULL, *tinstance1 = NULL;
01455 struct ast_rtp_glue *glue0, *glue1;
01456 enum ast_rtp_glue_result audio_glue0_res = AST_RTP_GLUE_RESULT_FORBID, video_glue0_res = AST_RTP_GLUE_RESULT_FORBID, text_glue0_res = AST_RTP_GLUE_RESULT_FORBID;
01457 enum ast_rtp_glue_result audio_glue1_res = AST_RTP_GLUE_RESULT_FORBID, video_glue1_res = AST_RTP_GLUE_RESULT_FORBID, text_glue1_res = AST_RTP_GLUE_RESULT_FORBID;
01458 format_t codec0 = 0, codec1 = 0;
01459 int res = 0;
01460
01461
01462 if (!c1) {
01463 return -1;
01464 }
01465
01466
01467 ast_channel_lock(c0);
01468 while (ast_channel_trylock(c1)) {
01469 ast_channel_unlock(c0);
01470 usleep(1);
01471 ast_channel_lock(c0);
01472 }
01473
01474
01475 if (!(glue0 = ast_rtp_instance_get_glue(c0->tech->type)) || !(glue1 = ast_rtp_instance_get_glue(c1->tech->type))) {
01476 ast_log(LOG_WARNING, "Can't find native functions for channel '%s'\n", glue0 ? c1->name : c0->name);
01477 goto done;
01478 }
01479
01480 audio_glue0_res = glue0->get_rtp_info(c0, &instance0);
01481 video_glue0_res = glue0->get_vrtp_info ? glue0->get_vrtp_info(c0, &vinstance0) : AST_RTP_GLUE_RESULT_FORBID;
01482 text_glue0_res = glue0->get_trtp_info ? glue0->get_trtp_info(c0, &tinstance0) : AST_RTP_GLUE_RESULT_FORBID;
01483
01484 audio_glue1_res = glue1->get_rtp_info(c1, &instance1);
01485 video_glue1_res = glue1->get_vrtp_info ? glue1->get_vrtp_info(c1, &vinstance1) : AST_RTP_GLUE_RESULT_FORBID;
01486 text_glue1_res = glue1->get_trtp_info ? glue1->get_trtp_info(c1, &tinstance1) : AST_RTP_GLUE_RESULT_FORBID;
01487
01488
01489 if (video_glue0_res != AST_RTP_GLUE_RESULT_FORBID && (audio_glue0_res != AST_RTP_GLUE_RESULT_REMOTE || video_glue0_res != AST_RTP_GLUE_RESULT_REMOTE)) {
01490 audio_glue0_res = AST_RTP_GLUE_RESULT_FORBID;
01491 }
01492 if (video_glue1_res != AST_RTP_GLUE_RESULT_FORBID && (audio_glue1_res != AST_RTP_GLUE_RESULT_REMOTE || video_glue1_res != AST_RTP_GLUE_RESULT_REMOTE)) {
01493 audio_glue1_res = AST_RTP_GLUE_RESULT_FORBID;
01494 }
01495 if (audio_glue0_res == AST_RTP_GLUE_RESULT_REMOTE && (video_glue0_res == AST_RTP_GLUE_RESULT_FORBID || video_glue0_res == AST_RTP_GLUE_RESULT_REMOTE) && glue0->get_codec(c0)) {
01496 codec0 = glue0->get_codec(c0);
01497 }
01498 if (audio_glue1_res == AST_RTP_GLUE_RESULT_REMOTE && (video_glue1_res == AST_RTP_GLUE_RESULT_FORBID || video_glue1_res == AST_RTP_GLUE_RESULT_REMOTE) && glue1->get_codec(c1)) {
01499 codec1 = glue1->get_codec(c1);
01500 }
01501
01502
01503 if (audio_glue0_res != AST_RTP_GLUE_RESULT_REMOTE || audio_glue1_res != AST_RTP_GLUE_RESULT_REMOTE) {
01504 goto done;
01505 }
01506
01507
01508 if (!(codec0 & codec1)) {
01509 goto done;
01510 }
01511
01512
01513 if (glue0->update_peer(c0, instance1, vinstance1, tinstance1, codec1, 0)) {
01514 ast_log(LOG_WARNING, "Channel '%s' failed to setup early bridge to '%s'\n", c0->name, c1 ? c1->name : "<unspecified>");
01515 }
01516
01517 res = 0;
01518
01519 done:
01520 ast_channel_unlock(c0);
01521 ast_channel_unlock(c1);
01522
01523 unref_instance_cond(&instance0);
01524 unref_instance_cond(&instance1);
01525 unref_instance_cond(&vinstance0);
01526 unref_instance_cond(&vinstance1);
01527 unref_instance_cond(&tinstance0);
01528 unref_instance_cond(&tinstance1);
01529
01530 if (!res) {
01531 ast_debug(1, "Setting early bridge SDP of '%s' with that of '%s'\n", c0->name, c1 ? c1->name : "<unspecified>");
01532 }
01533
01534 return res;
01535 }
01536
01537 int ast_rtp_red_init(struct ast_rtp_instance *instance, int buffer_time, int *payloads, int generations)
01538 {
01539 return instance->engine->red_init ? instance->engine->red_init(instance, buffer_time, payloads, generations) : -1;
01540 }
01541
01542 int ast_rtp_red_buffer(struct ast_rtp_instance *instance, struct ast_frame *frame)
01543 {
01544 return instance->engine->red_buffer ? instance->engine->red_buffer(instance, frame) : -1;
01545 }
01546
01547 int ast_rtp_instance_get_stats(struct ast_rtp_instance *instance, struct ast_rtp_instance_stats *stats, enum ast_rtp_instance_stat stat)
01548 {
01549 return instance->engine->get_stat ? instance->engine->get_stat(instance, stats, stat) : -1;
01550 }
01551
01552 char *ast_rtp_instance_get_quality(struct ast_rtp_instance *instance, enum ast_rtp_instance_stat_field field, char *buf, size_t size)
01553 {
01554 struct ast_rtp_instance_stats stats = { 0, };
01555 enum ast_rtp_instance_stat stat;
01556
01557
01558 if (field == AST_RTP_INSTANCE_STAT_FIELD_QUALITY) {
01559 stat = AST_RTP_INSTANCE_STAT_ALL;
01560 } else if (field == AST_RTP_INSTANCE_STAT_FIELD_QUALITY_JITTER) {
01561 stat = AST_RTP_INSTANCE_STAT_COMBINED_JITTER;
01562 } else if (field == AST_RTP_INSTANCE_STAT_FIELD_QUALITY_LOSS) {
01563 stat = AST_RTP_INSTANCE_STAT_COMBINED_LOSS;
01564 } else if (field == AST_RTP_INSTANCE_STAT_FIELD_QUALITY_RTT) {
01565 stat = AST_RTP_INSTANCE_STAT_COMBINED_RTT;
01566 } else {
01567 return NULL;
01568 }
01569
01570
01571 if (ast_rtp_instance_get_stats(instance, &stats, stat)) {
01572 return NULL;
01573 }
01574
01575
01576 if (field == AST_RTP_INSTANCE_STAT_FIELD_QUALITY) {
01577 snprintf(buf, size, "ssrc=%i;themssrc=%u;lp=%u;rxjitter=%f;rxcount=%u;txjitter=%f;txcount=%u;rlp=%u;rtt=%f",
01578 stats.local_ssrc, stats.remote_ssrc, stats.rxploss, stats.txjitter, stats.rxcount, stats.rxjitter, stats.txcount, stats.txploss, stats.rtt);
01579 } else if (field == AST_RTP_INSTANCE_STAT_FIELD_QUALITY_JITTER) {
01580 snprintf(buf, size, "minrxjitter=%f;maxrxjitter=%f;avgrxjitter=%f;stdevrxjitter=%f;reported_minjitter=%f;reported_maxjitter=%f;reported_avgjitter=%f;reported_stdevjitter=%f;",
01581 stats.local_minjitter, stats.local_maxjitter, stats.local_normdevjitter, sqrt(stats.local_stdevjitter), stats.remote_minjitter, stats.remote_maxjitter, stats.remote_normdevjitter, sqrt(stats.remote_stdevjitter));
01582 } else if (field == AST_RTP_INSTANCE_STAT_FIELD_QUALITY_LOSS) {
01583 snprintf(buf, size, "minrxlost=%f;maxrxlost=%f;avgrxlost=%f;stdevrxlost=%f;reported_minlost=%f;reported_maxlost=%f;reported_avglost=%f;reported_stdevlost=%f;",
01584 stats.local_minrxploss, stats.local_maxrxploss, stats.local_normdevrxploss, sqrt(stats.local_stdevrxploss), stats.remote_minrxploss, stats.remote_maxrxploss, stats.remote_normdevrxploss, sqrt(stats.remote_stdevrxploss));
01585 } else if (field == AST_RTP_INSTANCE_STAT_FIELD_QUALITY_RTT) {
01586 snprintf(buf, size, "minrtt=%f;maxrtt=%f;avgrtt=%f;stdevrtt=%f;", stats.minrtt, stats.maxrtt, stats.normdevrtt, stats.stdevrtt);
01587 }
01588
01589 return buf;
01590 }
01591
01592 void ast_rtp_instance_set_stats_vars(struct ast_channel *chan, struct ast_rtp_instance *instance)
01593 {
01594 char quality_buf[AST_MAX_USER_FIELD], *quality;
01595 struct ast_channel *bridge = ast_bridged_channel(chan);
01596
01597 if ((quality = ast_rtp_instance_get_quality(instance, AST_RTP_INSTANCE_STAT_FIELD_QUALITY, quality_buf, sizeof(quality_buf)))) {
01598 pbx_builtin_setvar_helper(chan, "RTPAUDIOQOS", quality);
01599 if (bridge) {
01600 pbx_builtin_setvar_helper(bridge, "RTPAUDIOQOSBRIDGED", quality);
01601 }
01602 }
01603
01604 if ((quality = ast_rtp_instance_get_quality(instance, AST_RTP_INSTANCE_STAT_FIELD_QUALITY_JITTER, quality_buf, sizeof(quality_buf)))) {
01605 pbx_builtin_setvar_helper(chan, "RTPAUDIOQOSJITTER", quality);
01606 if (bridge) {
01607 pbx_builtin_setvar_helper(bridge, "RTPAUDIOQOSJITTERBRIDGED", quality);
01608 }
01609 }
01610
01611 if ((quality = ast_rtp_instance_get_quality(instance, AST_RTP_INSTANCE_STAT_FIELD_QUALITY_LOSS, quality_buf, sizeof(quality_buf)))) {
01612 pbx_builtin_setvar_helper(chan, "RTPAUDIOQOSLOSS", quality);
01613 if (bridge) {
01614 pbx_builtin_setvar_helper(bridge, "RTPAUDIOQOSLOSSBRIDGED", quality);
01615 }
01616 }
01617
01618 if ((quality = ast_rtp_instance_get_quality(instance, AST_RTP_INSTANCE_STAT_FIELD_QUALITY_RTT, quality_buf, sizeof(quality_buf)))) {
01619 pbx_builtin_setvar_helper(chan, "RTPAUDIOQOSRTT", quality);
01620 if (bridge) {
01621 pbx_builtin_setvar_helper(bridge, "RTPAUDIOQOSRTTBRIDGED", quality);
01622 }
01623 }
01624 }
01625
01626 int ast_rtp_instance_set_read_format(struct ast_rtp_instance *instance, format_t format)
01627 {
01628 return instance->engine->set_read_format ? instance->engine->set_read_format(instance, format) : -1;
01629 }
01630
01631 int ast_rtp_instance_set_write_format(struct ast_rtp_instance *instance, format_t format)
01632 {
01633 return instance->engine->set_write_format ? instance->engine->set_write_format(instance, format) : -1;
01634 }
01635
01636 int ast_rtp_instance_make_compatible(struct ast_channel *chan, struct ast_rtp_instance *instance, struct ast_channel *peer)
01637 {
01638 struct ast_rtp_glue *glue;
01639 struct ast_rtp_instance *peer_instance = NULL;
01640 int res = -1;
01641
01642 if (!instance->engine->make_compatible) {
01643 return -1;
01644 }
01645
01646 ast_channel_lock(peer);
01647
01648 if (!(glue = ast_rtp_instance_get_glue(peer->tech->type))) {
01649 ast_channel_unlock(peer);
01650 return -1;
01651 }
01652
01653 glue->get_rtp_info(peer, &peer_instance);
01654
01655 if (!peer_instance || peer_instance->engine != instance->engine) {
01656 ast_channel_unlock(peer);
01657 ao2_ref(peer_instance, -1);
01658 peer_instance = NULL;
01659 return -1;
01660 }
01661
01662 res = instance->engine->make_compatible(chan, instance, peer, peer_instance);
01663
01664 ast_channel_unlock(peer);
01665
01666 ao2_ref(peer_instance, -1);
01667 peer_instance = NULL;
01668
01669 return res;
01670 }
01671
01672 format_t ast_rtp_instance_available_formats(struct ast_rtp_instance *instance, format_t to_endpoint, format_t to_asterisk)
01673 {
01674 format_t formats;
01675
01676 if (instance->engine->available_formats && (formats = instance->engine->available_formats(instance, to_endpoint, to_asterisk))) {
01677 return formats;
01678 }
01679
01680 return ast_translate_available_formats(to_endpoint, to_asterisk);
01681 }
01682
01683 int ast_rtp_instance_activate(struct ast_rtp_instance *instance)
01684 {
01685 return instance->engine->activate ? instance->engine->activate(instance) : 0;
01686 }
01687
01688 void ast_rtp_instance_stun_request(struct ast_rtp_instance *instance,
01689 struct ast_sockaddr *suggestion,
01690 const char *username)
01691 {
01692 if (instance->engine->stun_request) {
01693 instance->engine->stun_request(instance, suggestion, username);
01694 }
01695 }
01696
01697 void ast_rtp_instance_set_timeout(struct ast_rtp_instance *instance, int timeout)
01698 {
01699 instance->timeout = timeout;
01700 }
01701
01702 void ast_rtp_instance_set_hold_timeout(struct ast_rtp_instance *instance, int timeout)
01703 {
01704 instance->holdtimeout = timeout;
01705 }
01706
01707 int ast_rtp_instance_get_timeout(struct ast_rtp_instance *instance)
01708 {
01709 return instance->timeout;
01710 }
01711
01712 int ast_rtp_instance_get_hold_timeout(struct ast_rtp_instance *instance)
01713 {
01714 return instance->holdtimeout;
01715 }
01716
01717 struct ast_rtp_engine *ast_rtp_instance_get_engine(struct ast_rtp_instance *instance)
01718 {
01719 return instance->engine;
01720 }
01721
01722 struct ast_rtp_glue *ast_rtp_instance_get_active_glue(struct ast_rtp_instance *instance)
01723 {
01724 return instance->glue;
01725 }
01726
01727 struct ast_channel *ast_rtp_instance_get_chan(struct ast_rtp_instance *instance)
01728 {
01729 return instance->chan;
01730 }
01731
01732 int ast_rtp_engine_register_srtp(struct ast_srtp_res *srtp_res, struct ast_srtp_policy_res *policy_res)
01733 {
01734 if (res_srtp || res_srtp_policy) {
01735 return -1;
01736 }
01737 if (!srtp_res || !policy_res) {
01738 return -1;
01739 }
01740
01741 res_srtp = srtp_res;
01742 res_srtp_policy = policy_res;
01743
01744 return 0;
01745 }
01746
01747 void ast_rtp_engine_unregister_srtp(void)
01748 {
01749 res_srtp = NULL;
01750 res_srtp_policy = NULL;
01751 }
01752
01753 int ast_rtp_engine_srtp_is_registered(void)
01754 {
01755 return res_srtp && res_srtp_policy;
01756 }
01757
01758 int ast_rtp_instance_add_srtp_policy(struct ast_rtp_instance *instance, struct ast_srtp_policy *policy)
01759 {
01760 if (!res_srtp) {
01761 return -1;
01762 }
01763
01764 if (!instance->srtp) {
01765 return res_srtp->create(&instance->srtp, instance, policy);
01766 } else {
01767 return res_srtp->add_stream(instance->srtp, policy);
01768 }
01769 }
01770
01771 struct ast_srtp *ast_rtp_instance_get_srtp(struct ast_rtp_instance *instance)
01772 {
01773 return instance->srtp;
01774 }