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00025
00026 #include "asterisk.h"
00027
00028 ASTERISK_FILE_VERSION(__FILE__, "$Revision: 130634 $")
00029
00030 #include <stdio.h>
00031 #include <stdlib.h>
00032 #include <string.h>
00033 #include <signal.h>
00034 #include <errno.h>
00035 #include <unistd.h>
00036
00037 #include "asterisk/logger.h"
00038 #include "asterisk/channel.h"
00039 #include "asterisk/options.h"
00040 #include "asterisk/utils.h"
00041 #include "asterisk/lock.h"
00042 #include "asterisk/linkedlists.h"
00043 #include "asterisk/audiohook.h"
00044 #include "asterisk/slinfactory.h"
00045 #include "asterisk/frame.h"
00046 #include "asterisk/translate.h"
00047
00048 struct ast_audiohook_translate {
00049 struct ast_trans_pvt *trans_pvt;
00050 int format;
00051 };
00052
00053 struct ast_audiohook_list {
00054 struct ast_audiohook_translate in_translate[2];
00055 struct ast_audiohook_translate out_translate[2];
00056 AST_LIST_HEAD_NOLOCK(, ast_audiohook) spy_list;
00057 AST_LIST_HEAD_NOLOCK(, ast_audiohook) whisper_list;
00058 AST_LIST_HEAD_NOLOCK(, ast_audiohook) manipulate_list;
00059 };
00060
00061
00062
00063
00064
00065
00066
00067 int ast_audiohook_init(struct ast_audiohook *audiohook, enum ast_audiohook_type type, const char *source)
00068 {
00069
00070 audiohook->type = type;
00071 audiohook->source = source;
00072
00073
00074 ast_mutex_init(&audiohook->lock);
00075 ast_cond_init(&audiohook->trigger, NULL);
00076
00077
00078 switch (type) {
00079 case AST_AUDIOHOOK_TYPE_SPY:
00080 ast_slinfactory_init(&audiohook->read_factory);
00081 case AST_AUDIOHOOK_TYPE_WHISPER:
00082 ast_slinfactory_init(&audiohook->write_factory);
00083 break;
00084 default:
00085 break;
00086 }
00087
00088
00089 audiohook->status = AST_AUDIOHOOK_STATUS_NEW;
00090
00091 return 0;
00092 }
00093
00094
00095
00096
00097
00098 int ast_audiohook_destroy(struct ast_audiohook *audiohook)
00099 {
00100
00101 switch (audiohook->type) {
00102 case AST_AUDIOHOOK_TYPE_SPY:
00103 ast_slinfactory_destroy(&audiohook->read_factory);
00104 case AST_AUDIOHOOK_TYPE_WHISPER:
00105 ast_slinfactory_destroy(&audiohook->write_factory);
00106 break;
00107 default:
00108 break;
00109 }
00110
00111
00112 if (audiohook->trans_pvt)
00113 ast_translator_free_path(audiohook->trans_pvt);
00114
00115
00116 ast_cond_destroy(&audiohook->trigger);
00117 ast_mutex_destroy(&audiohook->lock);
00118
00119 return 0;
00120 }
00121
00122
00123
00124
00125
00126
00127
00128 int ast_audiohook_write_frame(struct ast_audiohook *audiohook, enum ast_audiohook_direction direction, struct ast_frame *frame)
00129 {
00130 struct ast_slinfactory *factory = (direction == AST_AUDIOHOOK_DIRECTION_READ ? &audiohook->read_factory : &audiohook->write_factory);
00131 struct ast_slinfactory *other_factory = (direction == AST_AUDIOHOOK_DIRECTION_READ ? &audiohook->write_factory : &audiohook->read_factory);
00132 struct timeval *time = (direction == AST_AUDIOHOOK_DIRECTION_READ ? &audiohook->read_time : &audiohook->write_time), previous_time = *time;
00133
00134
00135 *time = ast_tvnow();
00136
00137
00138 if (ast_test_flag(audiohook, AST_AUDIOHOOK_TRIGGER_SYNC) && ast_slinfactory_available(other_factory) && (ast_tvdiff_ms(*time, previous_time) > (ast_slinfactory_available(other_factory) / 8))) {
00139 if (option_debug)
00140 ast_log(LOG_DEBUG, "Flushing audiohook %p so it remains in sync\n", audiohook);
00141 ast_slinfactory_flush(factory);
00142 ast_slinfactory_flush(other_factory);
00143 }
00144
00145
00146 ast_slinfactory_feed(factory, frame);
00147
00148
00149 if ((ast_test_flag(audiohook, AST_AUDIOHOOK_TRIGGER_MODE) == AST_AUDIOHOOK_TRIGGER_READ) && (direction == AST_AUDIOHOOK_DIRECTION_READ)) {
00150 ast_cond_signal(&audiohook->trigger);
00151 } else if ((ast_test_flag(audiohook, AST_AUDIOHOOK_TRIGGER_MODE) == AST_AUDIOHOOK_TRIGGER_WRITE) && (direction == AST_AUDIOHOOK_DIRECTION_WRITE)) {
00152 ast_cond_signal(&audiohook->trigger);
00153 } else if (ast_test_flag(audiohook, AST_AUDIOHOOK_TRIGGER_SYNC)) {
00154 ast_cond_signal(&audiohook->trigger);
00155 }
00156
00157 return 0;
00158 }
00159
00160 static struct ast_frame *audiohook_read_frame_single(struct ast_audiohook *audiohook, size_t samples, enum ast_audiohook_direction direction)
00161 {
00162 struct ast_slinfactory *factory = (direction == AST_AUDIOHOOK_DIRECTION_READ ? &audiohook->read_factory : &audiohook->write_factory);
00163 int vol = (direction == AST_AUDIOHOOK_DIRECTION_READ ? audiohook->options.read_volume : audiohook->options.write_volume);
00164 short buf[samples];
00165 struct ast_frame frame = {
00166 .frametype = AST_FRAME_VOICE,
00167 .subclass = AST_FORMAT_SLINEAR,
00168 .data = buf,
00169 .datalen = sizeof(buf),
00170 .samples = samples,
00171 };
00172
00173
00174 if (samples > ast_slinfactory_available(factory))
00175 return NULL;
00176
00177
00178 if (!ast_slinfactory_read(factory, buf, samples))
00179 return NULL;
00180
00181
00182 if (vol)
00183 ast_frame_adjust_volume(&frame, vol);
00184
00185 return ast_frdup(&frame);
00186 }
00187
00188 static struct ast_frame *audiohook_read_frame_both(struct ast_audiohook *audiohook, size_t samples)
00189 {
00190 int i = 0, usable_read, usable_write;
00191 short buf1[samples], buf2[samples], *read_buf = NULL, *write_buf = NULL, *final_buf = NULL, *data1 = NULL, *data2 = NULL;
00192 struct ast_frame frame = {
00193 .frametype = AST_FRAME_VOICE,
00194 .subclass = AST_FORMAT_SLINEAR,
00195 .data = NULL,
00196 .datalen = sizeof(buf1),
00197 .samples = samples,
00198 };
00199
00200
00201 usable_read = (ast_slinfactory_available(&audiohook->read_factory) >= samples ? 1 : 0);
00202 usable_write = (ast_slinfactory_available(&audiohook->write_factory) >= samples ? 1 : 0);
00203
00204 if (!usable_read && !usable_write) {
00205
00206 if (option_debug)
00207 ast_log(LOG_DEBUG, "Read factory %p and write factory %p both fail to provide %zd samples\n", &audiohook->read_factory, &audiohook->write_factory, samples);
00208 return NULL;
00209 }
00210
00211
00212 if (usable_read && !usable_write && (ast_tvdiff_ms(ast_tvnow(), audiohook->write_time) < (samples/8)*2)) {
00213 if (option_debug > 2)
00214 ast_log(LOG_DEBUG, "Write factory %p was pretty quick last time, waiting for them.\n", &audiohook->write_factory);
00215 return NULL;
00216 }
00217
00218
00219 if (usable_write && !usable_read && (ast_tvdiff_ms(ast_tvnow(), audiohook->read_time) < (samples/8)*2)) {
00220 if (option_debug > 2)
00221 ast_log(LOG_DEBUG, "Read factory %p was pretty quick last time, waiting for them.\n", &audiohook->read_factory);
00222 return NULL;
00223 }
00224
00225
00226 if (usable_read) {
00227 if (ast_slinfactory_read(&audiohook->read_factory, buf1, samples)) {
00228 read_buf = buf1;
00229
00230 if (audiohook->options.read_volume) {
00231 int count = 0;
00232 short adjust_value = abs(audiohook->options.read_volume);
00233 for (count = 0; count < samples; count++) {
00234 if (audiohook->options.read_volume > 0)
00235 ast_slinear_saturated_multiply(&buf1[count], &adjust_value);
00236 else if (audiohook->options.read_volume < 0)
00237 ast_slinear_saturated_divide(&buf1[count], &adjust_value);
00238 }
00239 }
00240 }
00241 } else if (option_debug)
00242 ast_log(LOG_DEBUG, "Failed to get %zd samples from read factory %p\n", samples, &audiohook->read_factory);
00243
00244
00245 if (usable_write) {
00246 if (ast_slinfactory_read(&audiohook->write_factory, buf2, samples)) {
00247 write_buf = buf2;
00248
00249 if (audiohook->options.write_volume) {
00250 int count = 0;
00251 short adjust_value = abs(audiohook->options.write_volume);
00252 for (count = 0; count < samples; count++) {
00253 if (audiohook->options.write_volume > 0)
00254 ast_slinear_saturated_multiply(&buf2[count], &adjust_value);
00255 else if (audiohook->options.write_volume < 0)
00256 ast_slinear_saturated_divide(&buf2[count], &adjust_value);
00257 }
00258 }
00259 }
00260 } else if (option_debug)
00261 ast_log(LOG_DEBUG, "Failed to get %zd samples from write factory %p\n", samples, &audiohook->write_factory);
00262
00263
00264 if (!read_buf && !write_buf)
00265 return NULL;
00266 else if (read_buf && write_buf) {
00267 for (i = 0, data1 = read_buf, data2 = write_buf; i < samples; i++, data1++, data2++)
00268 ast_slinear_saturated_add(data1, data2);
00269 final_buf = buf1;
00270 } else if (read_buf)
00271 final_buf = buf1;
00272 else if (write_buf)
00273 final_buf = buf2;
00274
00275
00276 frame.data = final_buf;
00277
00278
00279 return ast_frdup(&frame);
00280 }
00281
00282
00283
00284
00285
00286
00287
00288
00289 struct ast_frame *ast_audiohook_read_frame(struct ast_audiohook *audiohook, size_t samples, enum ast_audiohook_direction direction, int format)
00290 {
00291 struct ast_frame *read_frame = NULL, *final_frame = NULL;
00292
00293 if (!(read_frame = (direction == AST_AUDIOHOOK_DIRECTION_BOTH ? audiohook_read_frame_both(audiohook, samples) : audiohook_read_frame_single(audiohook, samples, direction))))
00294 return NULL;
00295
00296
00297 if (format != AST_FORMAT_SLINEAR) {
00298
00299 if (audiohook->format != format) {
00300 if (audiohook->trans_pvt) {
00301 ast_translator_free_path(audiohook->trans_pvt);
00302 audiohook->trans_pvt = NULL;
00303 }
00304
00305 if (!(audiohook->trans_pvt = ast_translator_build_path(format, AST_FORMAT_SLINEAR))) {
00306 ast_frfree(read_frame);
00307 return NULL;
00308 }
00309 }
00310
00311 final_frame = ast_translate(audiohook->trans_pvt, read_frame, 1);
00312 } else {
00313 final_frame = read_frame;
00314 }
00315
00316 return final_frame;
00317 }
00318
00319
00320
00321
00322
00323
00324 int ast_audiohook_attach(struct ast_channel *chan, struct ast_audiohook *audiohook)
00325 {
00326 ast_channel_lock(chan);
00327
00328 if (!chan->audiohooks) {
00329
00330 if (!(chan->audiohooks = ast_calloc(1, sizeof(*chan->audiohooks)))) {
00331 ast_channel_unlock(chan);
00332 return -1;
00333 }
00334 AST_LIST_HEAD_INIT_NOLOCK(&chan->audiohooks->spy_list);
00335 AST_LIST_HEAD_INIT_NOLOCK(&chan->audiohooks->whisper_list);
00336 AST_LIST_HEAD_INIT_NOLOCK(&chan->audiohooks->manipulate_list);
00337 }
00338
00339
00340 if (audiohook->type == AST_AUDIOHOOK_TYPE_SPY)
00341 AST_LIST_INSERT_TAIL(&chan->audiohooks->spy_list, audiohook, list);
00342 else if (audiohook->type == AST_AUDIOHOOK_TYPE_WHISPER)
00343 AST_LIST_INSERT_TAIL(&chan->audiohooks->whisper_list, audiohook, list);
00344 else if (audiohook->type == AST_AUDIOHOOK_TYPE_MANIPULATE)
00345 AST_LIST_INSERT_TAIL(&chan->audiohooks->manipulate_list, audiohook, list);
00346
00347
00348 audiohook->status = AST_AUDIOHOOK_STATUS_RUNNING;
00349
00350 ast_channel_unlock(chan);
00351
00352 return 0;
00353 }
00354
00355
00356
00357
00358
00359 int ast_audiohook_detach(struct ast_audiohook *audiohook)
00360 {
00361 if (audiohook->status == AST_AUDIOHOOK_STATUS_DONE)
00362 return 0;
00363
00364 audiohook->status = AST_AUDIOHOOK_STATUS_SHUTDOWN;
00365
00366 while (audiohook->status != AST_AUDIOHOOK_STATUS_DONE)
00367 ast_audiohook_trigger_wait(audiohook);
00368
00369 return 0;
00370 }
00371
00372
00373
00374
00375
00376 int ast_audiohook_detach_list(struct ast_audiohook_list *audiohook_list)
00377 {
00378 int i = 0;
00379 struct ast_audiohook *audiohook = NULL;
00380
00381
00382 AST_LIST_TRAVERSE_SAFE_BEGIN(&audiohook_list->spy_list, audiohook, list) {
00383 ast_audiohook_lock(audiohook);
00384 AST_LIST_REMOVE_CURRENT(&audiohook_list->spy_list, list);
00385 audiohook->status = AST_AUDIOHOOK_STATUS_DONE;
00386 ast_cond_signal(&audiohook->trigger);
00387 ast_audiohook_unlock(audiohook);
00388 }
00389 AST_LIST_TRAVERSE_SAFE_END
00390
00391
00392 AST_LIST_TRAVERSE_SAFE_BEGIN(&audiohook_list->whisper_list, audiohook, list) {
00393 ast_audiohook_lock(audiohook);
00394 AST_LIST_REMOVE_CURRENT(&audiohook_list->whisper_list, list);
00395 audiohook->status = AST_AUDIOHOOK_STATUS_DONE;
00396 ast_cond_signal(&audiohook->trigger);
00397 ast_audiohook_unlock(audiohook);
00398 }
00399 AST_LIST_TRAVERSE_SAFE_END
00400
00401
00402 AST_LIST_TRAVERSE_SAFE_BEGIN(&audiohook_list->manipulate_list, audiohook, list) {
00403 ast_audiohook_lock(audiohook);
00404 AST_LIST_REMOVE_CURRENT(&audiohook_list->manipulate_list, list);
00405 audiohook->status = AST_AUDIOHOOK_STATUS_DONE;
00406 ast_audiohook_unlock(audiohook);
00407 audiohook->manipulate_callback(audiohook, NULL, NULL, 0);
00408 }
00409 AST_LIST_TRAVERSE_SAFE_END
00410
00411
00412 for (i = 0; i < 2; i++) {
00413 if (audiohook_list->in_translate[i].trans_pvt)
00414 ast_translator_free_path(audiohook_list->in_translate[i].trans_pvt);
00415 if (audiohook_list->out_translate[i].trans_pvt)
00416 ast_translator_free_path(audiohook_list->out_translate[i].trans_pvt);
00417 }
00418
00419
00420 ast_free(audiohook_list);
00421
00422 return 0;
00423 }
00424
00425 static struct ast_audiohook *find_audiohook_by_source(struct ast_audiohook_list *audiohook_list, const char *source)
00426 {
00427 struct ast_audiohook *audiohook = NULL;
00428
00429 AST_LIST_TRAVERSE(&audiohook_list->spy_list, audiohook, list) {
00430 if (!strcasecmp(audiohook->source, source))
00431 return audiohook;
00432 }
00433
00434 AST_LIST_TRAVERSE(&audiohook_list->whisper_list, audiohook, list) {
00435 if (!strcasecmp(audiohook->source, source))
00436 return audiohook;
00437 }
00438
00439 AST_LIST_TRAVERSE(&audiohook_list->manipulate_list, audiohook, list) {
00440 if (!strcasecmp(audiohook->source, source))
00441 return audiohook;
00442 }
00443
00444 return NULL;
00445 }
00446
00447
00448
00449
00450
00451
00452 int ast_audiohook_detach_source(struct ast_channel *chan, const char *source)
00453 {
00454 struct ast_audiohook *audiohook = NULL;
00455
00456 ast_channel_lock(chan);
00457
00458
00459 if (!chan->audiohooks) {
00460 ast_channel_unlock(chan);
00461 return -1;
00462 }
00463
00464 audiohook = find_audiohook_by_source(chan->audiohooks, source);
00465
00466 ast_channel_unlock(chan);
00467
00468 if (audiohook && audiohook->status != AST_AUDIOHOOK_STATUS_DONE)
00469 audiohook->status = AST_AUDIOHOOK_STATUS_SHUTDOWN;
00470
00471 return (audiohook ? 0 : -1);
00472 }
00473
00474
00475
00476
00477
00478
00479
00480
00481 static struct ast_frame *dtmf_audiohook_write_list(struct ast_channel *chan, struct ast_audiohook_list *audiohook_list, enum ast_audiohook_direction direction, struct ast_frame *frame)
00482 {
00483 struct ast_audiohook *audiohook = NULL;
00484
00485 AST_LIST_TRAVERSE_SAFE_BEGIN(&audiohook_list->manipulate_list, audiohook, list) {
00486 ast_audiohook_lock(audiohook);
00487 if (audiohook->status != AST_AUDIOHOOK_STATUS_RUNNING) {
00488 AST_LIST_REMOVE_CURRENT(&audiohook_list->manipulate_list, list);
00489 audiohook->status = AST_AUDIOHOOK_STATUS_DONE;
00490 ast_audiohook_unlock(audiohook);
00491 audiohook->manipulate_callback(audiohook, NULL, NULL, 0);
00492 continue;
00493 }
00494 if (ast_test_flag(audiohook, AST_AUDIOHOOK_WANTS_DTMF))
00495 audiohook->manipulate_callback(audiohook, chan, frame, direction);
00496 ast_audiohook_unlock(audiohook);
00497 }
00498 AST_LIST_TRAVERSE_SAFE_END
00499
00500 return frame;
00501 }
00502
00503
00504
00505
00506
00507
00508
00509
00510 static struct ast_frame *audio_audiohook_write_list(struct ast_channel *chan, struct ast_audiohook_list *audiohook_list, enum ast_audiohook_direction direction, struct ast_frame *frame)
00511 {
00512 struct ast_audiohook_translate *in_translate = (direction == AST_AUDIOHOOK_DIRECTION_READ ? &audiohook_list->in_translate[0] : &audiohook_list->in_translate[1]);
00513 struct ast_audiohook_translate *out_translate = (direction == AST_AUDIOHOOK_DIRECTION_READ ? &audiohook_list->out_translate[0] : &audiohook_list->out_translate[1]);
00514 struct ast_frame *start_frame = frame, *middle_frame = frame, *end_frame = frame;
00515 struct ast_audiohook *audiohook = NULL;
00516 int samples = frame->samples;
00517
00518
00519 if (frame->subclass != AST_FORMAT_SLINEAR) {
00520 if (in_translate->format != frame->subclass) {
00521 if (in_translate->trans_pvt)
00522 ast_translator_free_path(in_translate->trans_pvt);
00523 if (!(in_translate->trans_pvt = ast_translator_build_path(AST_FORMAT_SLINEAR, frame->subclass)))
00524 return frame;
00525 in_translate->format = frame->subclass;
00526 }
00527 if (!(middle_frame = ast_translate(in_translate->trans_pvt, frame, 0)))
00528 return frame;
00529 }
00530
00531
00532 AST_LIST_TRAVERSE_SAFE_BEGIN(&audiohook_list->spy_list, audiohook, list) {
00533 ast_audiohook_lock(audiohook);
00534 if (audiohook->status != AST_AUDIOHOOK_STATUS_RUNNING) {
00535 AST_LIST_REMOVE_CURRENT(&audiohook_list->spy_list, list);
00536 audiohook->status = AST_AUDIOHOOK_STATUS_DONE;
00537 ast_cond_signal(&audiohook->trigger);
00538 ast_audiohook_unlock(audiohook);
00539 continue;
00540 }
00541 ast_audiohook_write_frame(audiohook, direction, middle_frame);
00542 ast_audiohook_unlock(audiohook);
00543 }
00544 AST_LIST_TRAVERSE_SAFE_END
00545
00546
00547 if (direction == AST_AUDIOHOOK_DIRECTION_WRITE && !AST_LIST_EMPTY(&audiohook_list->whisper_list)) {
00548 int i = 0;
00549 short read_buf[samples], combine_buf[samples], *data1 = NULL, *data2 = NULL;
00550 memset(&combine_buf, 0, sizeof(combine_buf));
00551 AST_LIST_TRAVERSE_SAFE_BEGIN(&audiohook_list->whisper_list, audiohook, list) {
00552 ast_audiohook_lock(audiohook);
00553 if (audiohook->status != AST_AUDIOHOOK_STATUS_RUNNING) {
00554 AST_LIST_REMOVE_CURRENT(&audiohook_list->whisper_list, list);
00555 audiohook->status = AST_AUDIOHOOK_STATUS_DONE;
00556 ast_cond_signal(&audiohook->trigger);
00557 ast_audiohook_unlock(audiohook);
00558 continue;
00559 }
00560 if (ast_slinfactory_available(&audiohook->write_factory) >= samples && ast_slinfactory_read(&audiohook->write_factory, read_buf, samples)) {
00561
00562 for (i = 0, data1 = combine_buf, data2 = read_buf; i < samples; i++, data1++, data2++)
00563 ast_slinear_saturated_add(data1, data2);
00564 }
00565 ast_audiohook_unlock(audiohook);
00566 }
00567 AST_LIST_TRAVERSE_SAFE_END
00568
00569 for (i = 0, data1 = middle_frame->data, data2 = combine_buf; i < samples; i++, data1++, data2++)
00570 ast_slinear_saturated_add(data1, data2);
00571 end_frame = middle_frame;
00572 }
00573
00574
00575 if (!AST_LIST_EMPTY(&audiohook_list->manipulate_list)) {
00576 AST_LIST_TRAVERSE_SAFE_BEGIN(&audiohook_list->manipulate_list, audiohook, list) {
00577 ast_audiohook_lock(audiohook);
00578 if (audiohook->status != AST_AUDIOHOOK_STATUS_RUNNING) {
00579 AST_LIST_REMOVE_CURRENT(&audiohook_list->manipulate_list, list);
00580 audiohook->status = AST_AUDIOHOOK_STATUS_DONE;
00581 ast_audiohook_unlock(audiohook);
00582
00583 audiohook->manipulate_callback(audiohook, chan, NULL, direction);
00584 continue;
00585 }
00586
00587 audiohook->manipulate_callback(audiohook, chan, middle_frame, direction);
00588 ast_audiohook_unlock(audiohook);
00589 }
00590 AST_LIST_TRAVERSE_SAFE_END
00591 end_frame = middle_frame;
00592 }
00593
00594
00595 if (middle_frame == end_frame) {
00596
00597 if (end_frame->subclass != start_frame->subclass) {
00598 if (out_translate->format != start_frame->subclass) {
00599 if (out_translate->trans_pvt)
00600 ast_translator_free_path(out_translate->trans_pvt);
00601 if (!(out_translate->trans_pvt = ast_translator_build_path(start_frame->subclass, AST_FORMAT_SLINEAR))) {
00602
00603 ast_frfree(middle_frame);
00604 return start_frame;
00605 }
00606 out_translate->format = start_frame->subclass;
00607 }
00608
00609 if (!(end_frame = ast_translate(out_translate->trans_pvt, middle_frame, 0))) {
00610
00611 ast_frfree(middle_frame);
00612 return start_frame;
00613 }
00614
00615 ast_frfree(middle_frame);
00616 }
00617 } else {
00618
00619 ast_frfree(middle_frame);
00620 }
00621
00622 return end_frame;
00623 }
00624
00625
00626
00627
00628
00629
00630
00631
00632 struct ast_frame *ast_audiohook_write_list(struct ast_channel *chan, struct ast_audiohook_list *audiohook_list, enum ast_audiohook_direction direction, struct ast_frame *frame)
00633 {
00634
00635 if (frame->frametype == AST_FRAME_VOICE)
00636 return audio_audiohook_write_list(chan, audiohook_list, direction, frame);
00637 else if (frame->frametype == AST_FRAME_DTMF)
00638 return dtmf_audiohook_write_list(chan, audiohook_list, direction, frame);
00639 else
00640 return frame;
00641 }
00642
00643
00644
00645
00646
00647 void ast_audiohook_trigger_wait(struct ast_audiohook *audiohook)
00648 {
00649 struct timeval tv;
00650 struct timespec ts;
00651
00652 tv = ast_tvadd(ast_tvnow(), ast_samp2tv(50000, 1000));
00653 ts.tv_sec = tv.tv_sec;
00654 ts.tv_nsec = tv.tv_usec * 1000;
00655
00656 ast_cond_timedwait(&audiohook->trigger, &audiohook->lock, &ts);
00657
00658 return;
00659 }