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00026 #include "asterisk.h"
00027
00028 ASTERISK_FILE_VERSION(__FILE__, "$Revision: 197544 $")
00029
00030 #include <signal.h>
00031
00032 #include "asterisk/channel.h"
00033 #include "asterisk/utils.h"
00034 #include "asterisk/lock.h"
00035 #include "asterisk/linkedlists.h"
00036 #include "asterisk/audiohook.h"
00037 #include "asterisk/slinfactory.h"
00038 #include "asterisk/frame.h"
00039 #include "asterisk/translate.h"
00040
00041 struct ast_audiohook_translate {
00042 struct ast_trans_pvt *trans_pvt;
00043 int format;
00044 };
00045
00046 struct ast_audiohook_list {
00047 struct ast_audiohook_translate in_translate[2];
00048 struct ast_audiohook_translate out_translate[2];
00049 AST_LIST_HEAD_NOLOCK(, ast_audiohook) spy_list;
00050 AST_LIST_HEAD_NOLOCK(, ast_audiohook) whisper_list;
00051 AST_LIST_HEAD_NOLOCK(, ast_audiohook) manipulate_list;
00052 };
00053
00054
00055
00056
00057
00058
00059
00060 int ast_audiohook_init(struct ast_audiohook *audiohook, enum ast_audiohook_type type, const char *source)
00061 {
00062
00063 audiohook->type = type;
00064 audiohook->source = source;
00065
00066
00067 ast_mutex_init(&audiohook->lock);
00068 ast_cond_init(&audiohook->trigger, NULL);
00069
00070
00071 switch (type) {
00072 case AST_AUDIOHOOK_TYPE_SPY:
00073 ast_slinfactory_init(&audiohook->read_factory);
00074 case AST_AUDIOHOOK_TYPE_WHISPER:
00075 ast_slinfactory_init(&audiohook->write_factory);
00076 break;
00077 default:
00078 break;
00079 }
00080
00081
00082 audiohook->status = AST_AUDIOHOOK_STATUS_NEW;
00083
00084 return 0;
00085 }
00086
00087
00088
00089
00090
00091 int ast_audiohook_destroy(struct ast_audiohook *audiohook)
00092 {
00093
00094 switch (audiohook->type) {
00095 case AST_AUDIOHOOK_TYPE_SPY:
00096 ast_slinfactory_destroy(&audiohook->read_factory);
00097 case AST_AUDIOHOOK_TYPE_WHISPER:
00098 ast_slinfactory_destroy(&audiohook->write_factory);
00099 break;
00100 default:
00101 break;
00102 }
00103
00104
00105 if (audiohook->trans_pvt)
00106 ast_translator_free_path(audiohook->trans_pvt);
00107
00108
00109 ast_cond_destroy(&audiohook->trigger);
00110 ast_mutex_destroy(&audiohook->lock);
00111
00112 return 0;
00113 }
00114
00115
00116
00117
00118
00119
00120
00121 int ast_audiohook_write_frame(struct ast_audiohook *audiohook, enum ast_audiohook_direction direction, struct ast_frame *frame)
00122 {
00123 struct ast_slinfactory *factory = (direction == AST_AUDIOHOOK_DIRECTION_READ ? &audiohook->read_factory : &audiohook->write_factory);
00124 struct ast_slinfactory *other_factory = (direction == AST_AUDIOHOOK_DIRECTION_READ ? &audiohook->write_factory : &audiohook->read_factory);
00125 struct timeval *time = (direction == AST_AUDIOHOOK_DIRECTION_READ ? &audiohook->read_time : &audiohook->write_time), previous_time = *time;
00126 int our_factory_samples;
00127 int our_factory_ms;
00128 int other_factory_samples;
00129 int other_factory_ms;
00130
00131
00132 *time = ast_tvnow();
00133
00134 our_factory_samples = ast_slinfactory_available(factory);
00135 our_factory_ms = ast_tvdiff_ms(*time, previous_time) + (our_factory_samples / 8);
00136 other_factory_samples = ast_slinfactory_available(other_factory);
00137 other_factory_ms = other_factory_samples / 8;
00138
00139 if (ast_test_flag(audiohook, AST_AUDIOHOOK_TRIGGER_SYNC) && other_factory_samples && (our_factory_ms - other_factory_ms > AST_AUDIOHOOK_SYNC_TOLERANCE)) {
00140 if (option_debug)
00141 ast_log(LOG_DEBUG, "Flushing audiohook %p so it remains in sync\n", audiohook);
00142 ast_slinfactory_flush(factory);
00143 ast_slinfactory_flush(other_factory);
00144 }
00145
00146 if (ast_test_flag(audiohook, AST_AUDIOHOOK_SMALL_QUEUE) && (our_factory_samples > 640 || other_factory_samples > 640)) {
00147 if (option_debug) {
00148 ast_log(LOG_DEBUG, "Audiohook %p has stale audio in its factories. Flushing them both\n", audiohook);
00149 }
00150 ast_slinfactory_flush(factory);
00151 ast_slinfactory_flush(other_factory);
00152 }
00153
00154
00155 ast_slinfactory_feed(factory, frame);
00156
00157
00158 if ((ast_test_flag(audiohook, AST_AUDIOHOOK_TRIGGER_MODE) == AST_AUDIOHOOK_TRIGGER_READ) && (direction == AST_AUDIOHOOK_DIRECTION_READ)) {
00159 ast_cond_signal(&audiohook->trigger);
00160 } else if ((ast_test_flag(audiohook, AST_AUDIOHOOK_TRIGGER_MODE) == AST_AUDIOHOOK_TRIGGER_WRITE) && (direction == AST_AUDIOHOOK_DIRECTION_WRITE)) {
00161 ast_cond_signal(&audiohook->trigger);
00162 } else if (ast_test_flag(audiohook, AST_AUDIOHOOK_TRIGGER_SYNC)) {
00163 ast_cond_signal(&audiohook->trigger);
00164 }
00165
00166 return 0;
00167 }
00168
00169 static struct ast_frame *audiohook_read_frame_single(struct ast_audiohook *audiohook, size_t samples, enum ast_audiohook_direction direction)
00170 {
00171 struct ast_slinfactory *factory = (direction == AST_AUDIOHOOK_DIRECTION_READ ? &audiohook->read_factory : &audiohook->write_factory);
00172 int vol = (direction == AST_AUDIOHOOK_DIRECTION_READ ? audiohook->options.read_volume : audiohook->options.write_volume);
00173 short buf[samples];
00174 struct ast_frame frame = {
00175 .frametype = AST_FRAME_VOICE,
00176 .subclass = AST_FORMAT_SLINEAR,
00177 .data = buf,
00178 .datalen = sizeof(buf),
00179 .samples = samples,
00180 };
00181
00182
00183 if (samples > ast_slinfactory_available(factory))
00184 return NULL;
00185
00186
00187 if (!ast_slinfactory_read(factory, buf, samples))
00188 return NULL;
00189
00190
00191 if (vol)
00192 ast_frame_adjust_volume(&frame, vol);
00193
00194 return ast_frdup(&frame);
00195 }
00196
00197 static struct ast_frame *audiohook_read_frame_both(struct ast_audiohook *audiohook, size_t samples)
00198 {
00199 int i = 0, usable_read, usable_write;
00200 short buf1[samples], buf2[samples], *read_buf = NULL, *write_buf = NULL, *final_buf = NULL, *data1 = NULL, *data2 = NULL;
00201 struct ast_frame frame = {
00202 .frametype = AST_FRAME_VOICE,
00203 .subclass = AST_FORMAT_SLINEAR,
00204 .data = NULL,
00205 .datalen = sizeof(buf1),
00206 .samples = samples,
00207 };
00208
00209
00210 usable_read = (ast_slinfactory_available(&audiohook->read_factory) >= samples ? 1 : 0);
00211 usable_write = (ast_slinfactory_available(&audiohook->write_factory) >= samples ? 1 : 0);
00212
00213 if (!usable_read && !usable_write) {
00214
00215 ast_debug(1, "Read factory %p and write factory %p both fail to provide %zd samples\n", &audiohook->read_factory, &audiohook->write_factory, samples);
00216 return NULL;
00217 }
00218
00219
00220 if (usable_read && !usable_write && (ast_tvdiff_ms(ast_tvnow(), audiohook->write_time) < (samples/8)*2)) {
00221 ast_debug(3, "Write factory %p was pretty quick last time, waiting for them.\n", &audiohook->write_factory);
00222 return NULL;
00223 }
00224
00225
00226 if (usable_write && !usable_read && (ast_tvdiff_ms(ast_tvnow(), audiohook->read_time) < (samples/8)*2)) {
00227 ast_debug(3, "Read factory %p was pretty quick last time, waiting for them.\n", &audiohook->read_factory);
00228 return NULL;
00229 }
00230
00231
00232 if (usable_read) {
00233 if (ast_slinfactory_read(&audiohook->read_factory, buf1, samples)) {
00234 read_buf = buf1;
00235
00236 if (audiohook->options.read_volume) {
00237 int count = 0;
00238 short adjust_value = abs(audiohook->options.read_volume);
00239 for (count = 0; count < samples; count++) {
00240 if (audiohook->options.read_volume > 0)
00241 ast_slinear_saturated_multiply(&buf1[count], &adjust_value);
00242 else if (audiohook->options.read_volume < 0)
00243 ast_slinear_saturated_divide(&buf1[count], &adjust_value);
00244 }
00245 }
00246 }
00247 } else if (option_debug)
00248 ast_log(LOG_DEBUG, "Failed to get %d samples from read factory %p\n", (int)samples, &audiohook->read_factory);
00249
00250
00251 if (usable_write) {
00252 if (ast_slinfactory_read(&audiohook->write_factory, buf2, samples)) {
00253 write_buf = buf2;
00254
00255 if (audiohook->options.write_volume) {
00256 int count = 0;
00257 short adjust_value = abs(audiohook->options.write_volume);
00258 for (count = 0; count < samples; count++) {
00259 if (audiohook->options.write_volume > 0)
00260 ast_slinear_saturated_multiply(&buf2[count], &adjust_value);
00261 else if (audiohook->options.write_volume < 0)
00262 ast_slinear_saturated_divide(&buf2[count], &adjust_value);
00263 }
00264 }
00265 }
00266 } else if (option_debug)
00267 ast_log(LOG_DEBUG, "Failed to get %d samples from write factory %p\n", (int)samples, &audiohook->write_factory);
00268
00269
00270 if (!read_buf && !write_buf)
00271 return NULL;
00272 else if (read_buf && write_buf) {
00273 for (i = 0, data1 = read_buf, data2 = write_buf; i < samples; i++, data1++, data2++)
00274 ast_slinear_saturated_add(data1, data2);
00275 final_buf = buf1;
00276 } else if (read_buf)
00277 final_buf = buf1;
00278 else if (write_buf)
00279 final_buf = buf2;
00280
00281
00282 frame.data = final_buf;
00283
00284
00285 return ast_frdup(&frame);
00286 }
00287
00288
00289
00290
00291
00292
00293
00294
00295 struct ast_frame *ast_audiohook_read_frame(struct ast_audiohook *audiohook, size_t samples, enum ast_audiohook_direction direction, int format)
00296 {
00297 struct ast_frame *read_frame = NULL, *final_frame = NULL;
00298
00299 if (!(read_frame = (direction == AST_AUDIOHOOK_DIRECTION_BOTH ? audiohook_read_frame_both(audiohook, samples) : audiohook_read_frame_single(audiohook, samples, direction))))
00300 return NULL;
00301
00302
00303 if (format != AST_FORMAT_SLINEAR) {
00304
00305 if (audiohook->format != format) {
00306 if (audiohook->trans_pvt) {
00307 ast_translator_free_path(audiohook->trans_pvt);
00308 audiohook->trans_pvt = NULL;
00309 }
00310
00311 if (!(audiohook->trans_pvt = ast_translator_build_path(format, AST_FORMAT_SLINEAR))) {
00312 ast_frfree(read_frame);
00313 return NULL;
00314 }
00315 }
00316
00317 final_frame = ast_translate(audiohook->trans_pvt, read_frame, 1);
00318 } else {
00319 final_frame = read_frame;
00320 }
00321
00322 return final_frame;
00323 }
00324
00325
00326
00327
00328
00329
00330 int ast_audiohook_attach(struct ast_channel *chan, struct ast_audiohook *audiohook)
00331 {
00332 ast_channel_lock(chan);
00333
00334 if (!chan->audiohooks) {
00335
00336 if (!(chan->audiohooks = ast_calloc(1, sizeof(*chan->audiohooks)))) {
00337 ast_channel_unlock(chan);
00338 return -1;
00339 }
00340 AST_LIST_HEAD_INIT_NOLOCK(&chan->audiohooks->spy_list);
00341 AST_LIST_HEAD_INIT_NOLOCK(&chan->audiohooks->whisper_list);
00342 AST_LIST_HEAD_INIT_NOLOCK(&chan->audiohooks->manipulate_list);
00343 }
00344
00345
00346 if (audiohook->type == AST_AUDIOHOOK_TYPE_SPY)
00347 AST_LIST_INSERT_TAIL(&chan->audiohooks->spy_list, audiohook, list);
00348 else if (audiohook->type == AST_AUDIOHOOK_TYPE_WHISPER)
00349 AST_LIST_INSERT_TAIL(&chan->audiohooks->whisper_list, audiohook, list);
00350 else if (audiohook->type == AST_AUDIOHOOK_TYPE_MANIPULATE)
00351 AST_LIST_INSERT_TAIL(&chan->audiohooks->manipulate_list, audiohook, list);
00352
00353
00354 audiohook->status = AST_AUDIOHOOK_STATUS_RUNNING;
00355
00356 ast_channel_unlock(chan);
00357
00358 return 0;
00359 }
00360
00361
00362
00363
00364
00365 int ast_audiohook_detach(struct ast_audiohook *audiohook)
00366 {
00367 if (audiohook->status == AST_AUDIOHOOK_STATUS_DONE)
00368 return 0;
00369
00370 audiohook->status = AST_AUDIOHOOK_STATUS_SHUTDOWN;
00371
00372 while (audiohook->status != AST_AUDIOHOOK_STATUS_DONE)
00373 ast_audiohook_trigger_wait(audiohook);
00374
00375 return 0;
00376 }
00377
00378
00379
00380
00381
00382 int ast_audiohook_detach_list(struct ast_audiohook_list *audiohook_list)
00383 {
00384 int i = 0;
00385 struct ast_audiohook *audiohook = NULL;
00386
00387
00388 while ((audiohook = AST_LIST_REMOVE_HEAD(&audiohook_list->spy_list, list))) {
00389 ast_audiohook_lock(audiohook);
00390 audiohook->status = AST_AUDIOHOOK_STATUS_DONE;
00391 ast_cond_signal(&audiohook->trigger);
00392 ast_audiohook_unlock(audiohook);
00393 }
00394
00395
00396 while ((audiohook = AST_LIST_REMOVE_HEAD(&audiohook_list->whisper_list, list))) {
00397 ast_audiohook_lock(audiohook);
00398 audiohook->status = AST_AUDIOHOOK_STATUS_DONE;
00399 ast_cond_signal(&audiohook->trigger);
00400 ast_audiohook_unlock(audiohook);
00401 }
00402
00403
00404 while ((audiohook = AST_LIST_REMOVE_HEAD(&audiohook_list->manipulate_list, list))) {
00405 ast_audiohook_lock(audiohook);
00406 audiohook->status = AST_AUDIOHOOK_STATUS_DONE;
00407 ast_audiohook_unlock(audiohook);
00408 audiohook->manipulate_callback(audiohook, NULL, NULL, 0);
00409 }
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
00426
00427
00428
00429
00430 static struct ast_audiohook *find_audiohook_by_source(struct ast_audiohook_list *audiohook_list, const char *source)
00431 {
00432 struct ast_audiohook *audiohook = NULL;
00433
00434 AST_LIST_TRAVERSE(&audiohook_list->spy_list, audiohook, list) {
00435 if (!strcasecmp(audiohook->source, source))
00436 return audiohook;
00437 }
00438
00439 AST_LIST_TRAVERSE(&audiohook_list->whisper_list, audiohook, list) {
00440 if (!strcasecmp(audiohook->source, source))
00441 return audiohook;
00442 }
00443
00444 AST_LIST_TRAVERSE(&audiohook_list->manipulate_list, audiohook, list) {
00445 if (!strcasecmp(audiohook->source, source))
00446 return audiohook;
00447 }
00448
00449 return NULL;
00450 }
00451
00452 void ast_audiohook_move_by_source(struct ast_channel *old_chan, struct ast_channel *new_chan, const char *source)
00453 {
00454 struct ast_audiohook *audiohook;
00455
00456 if (!old_chan->audiohooks || !(audiohook = find_audiohook_by_source(old_chan->audiohooks, source))) {
00457 return;
00458 }
00459
00460
00461
00462
00463
00464
00465 ast_audiohook_lock(audiohook);
00466 ast_audiohook_remove(old_chan, audiohook);
00467 ast_audiohook_attach(new_chan, audiohook);
00468 ast_audiohook_unlock(audiohook);
00469 }
00470
00471
00472
00473
00474
00475
00476 int ast_audiohook_detach_source(struct ast_channel *chan, const char *source)
00477 {
00478 struct ast_audiohook *audiohook = NULL;
00479
00480 ast_channel_lock(chan);
00481
00482
00483 if (!chan->audiohooks) {
00484 ast_channel_unlock(chan);
00485 return -1;
00486 }
00487
00488 audiohook = find_audiohook_by_source(chan->audiohooks, source);
00489
00490 ast_channel_unlock(chan);
00491
00492 if (audiohook && audiohook->status != AST_AUDIOHOOK_STATUS_DONE)
00493 audiohook->status = AST_AUDIOHOOK_STATUS_SHUTDOWN;
00494
00495 return (audiohook ? 0 : -1);
00496 }
00497
00498
00499
00500
00501
00502
00503
00504
00505
00506
00507
00508 int ast_audiohook_remove(struct ast_channel *chan, struct ast_audiohook *audiohook)
00509 {
00510 ast_channel_lock(chan);
00511
00512 if (!chan->audiohooks) {
00513 ast_channel_unlock(chan);
00514 return -1;
00515 }
00516
00517 if (audiohook->type == AST_AUDIOHOOK_TYPE_SPY)
00518 AST_LIST_REMOVE(&chan->audiohooks->spy_list, audiohook, list);
00519 else if (audiohook->type == AST_AUDIOHOOK_TYPE_WHISPER)
00520 AST_LIST_REMOVE(&chan->audiohooks->whisper_list, audiohook, list);
00521 else if (audiohook->type == AST_AUDIOHOOK_TYPE_MANIPULATE)
00522 AST_LIST_REMOVE(&chan->audiohooks->manipulate_list, audiohook, list);
00523
00524 ast_audiohook_lock(audiohook);
00525 audiohook->status = AST_AUDIOHOOK_STATUS_DONE;
00526 ast_cond_signal(&audiohook->trigger);
00527 ast_audiohook_unlock(audiohook);
00528
00529 ast_channel_unlock(chan);
00530
00531 return 0;
00532 }
00533
00534
00535
00536
00537
00538
00539
00540
00541 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)
00542 {
00543 struct ast_audiohook *audiohook = NULL;
00544
00545 AST_LIST_TRAVERSE_SAFE_BEGIN(&audiohook_list->manipulate_list, audiohook, list) {
00546 ast_audiohook_lock(audiohook);
00547 if (audiohook->status != AST_AUDIOHOOK_STATUS_RUNNING) {
00548 AST_LIST_REMOVE_CURRENT(list);
00549 audiohook->status = AST_AUDIOHOOK_STATUS_DONE;
00550 ast_audiohook_unlock(audiohook);
00551 audiohook->manipulate_callback(audiohook, NULL, NULL, 0);
00552 continue;
00553 }
00554 if (ast_test_flag(audiohook, AST_AUDIOHOOK_WANTS_DTMF))
00555 audiohook->manipulate_callback(audiohook, chan, frame, direction);
00556 ast_audiohook_unlock(audiohook);
00557 }
00558 AST_LIST_TRAVERSE_SAFE_END;
00559
00560 return frame;
00561 }
00562
00563
00564
00565
00566
00567
00568
00569
00570 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)
00571 {
00572 struct ast_audiohook_translate *in_translate = (direction == AST_AUDIOHOOK_DIRECTION_READ ? &audiohook_list->in_translate[0] : &audiohook_list->in_translate[1]);
00573 struct ast_audiohook_translate *out_translate = (direction == AST_AUDIOHOOK_DIRECTION_READ ? &audiohook_list->out_translate[0] : &audiohook_list->out_translate[1]);
00574 struct ast_frame *start_frame = frame, *middle_frame = frame, *end_frame = frame;
00575 struct ast_audiohook *audiohook = NULL;
00576 int samples = frame->samples;
00577
00578
00579 if (frame->subclass != AST_FORMAT_SLINEAR) {
00580 if (in_translate->format != frame->subclass) {
00581 if (in_translate->trans_pvt)
00582 ast_translator_free_path(in_translate->trans_pvt);
00583 if (!(in_translate->trans_pvt = ast_translator_build_path(AST_FORMAT_SLINEAR, frame->subclass)))
00584 return frame;
00585 in_translate->format = frame->subclass;
00586 }
00587 if (!(middle_frame = ast_translate(in_translate->trans_pvt, frame, 0)))
00588 return frame;
00589 samples = middle_frame->samples;
00590 }
00591
00592
00593 AST_LIST_TRAVERSE_SAFE_BEGIN(&audiohook_list->spy_list, audiohook, list) {
00594 ast_audiohook_lock(audiohook);
00595 if (audiohook->status != AST_AUDIOHOOK_STATUS_RUNNING) {
00596 AST_LIST_REMOVE_CURRENT(list);
00597 audiohook->status = AST_AUDIOHOOK_STATUS_DONE;
00598 ast_cond_signal(&audiohook->trigger);
00599 ast_audiohook_unlock(audiohook);
00600 continue;
00601 }
00602 ast_audiohook_write_frame(audiohook, direction, middle_frame);
00603 ast_audiohook_unlock(audiohook);
00604 }
00605 AST_LIST_TRAVERSE_SAFE_END
00606
00607
00608 if (direction == AST_AUDIOHOOK_DIRECTION_WRITE && !AST_LIST_EMPTY(&audiohook_list->whisper_list)) {
00609 int i = 0;
00610 short read_buf[samples], combine_buf[samples], *data1 = NULL, *data2 = NULL;
00611 memset(&combine_buf, 0, sizeof(combine_buf));
00612 AST_LIST_TRAVERSE_SAFE_BEGIN(&audiohook_list->whisper_list, audiohook, list) {
00613 ast_audiohook_lock(audiohook);
00614 if (audiohook->status != AST_AUDIOHOOK_STATUS_RUNNING) {
00615 AST_LIST_REMOVE_CURRENT(list);
00616 audiohook->status = AST_AUDIOHOOK_STATUS_DONE;
00617 ast_cond_signal(&audiohook->trigger);
00618 ast_audiohook_unlock(audiohook);
00619 continue;
00620 }
00621 if (ast_slinfactory_available(&audiohook->write_factory) >= samples && ast_slinfactory_read(&audiohook->write_factory, read_buf, samples)) {
00622
00623 for (i = 0, data1 = combine_buf, data2 = read_buf; i < samples; i++, data1++, data2++)
00624 ast_slinear_saturated_add(data1, data2);
00625 }
00626 ast_audiohook_unlock(audiohook);
00627 }
00628 AST_LIST_TRAVERSE_SAFE_END
00629
00630 for (i = 0, data1 = middle_frame->data, data2 = combine_buf; i < samples; i++, data1++, data2++)
00631 ast_slinear_saturated_add(data1, data2);
00632 end_frame = middle_frame;
00633 }
00634
00635
00636 if (!AST_LIST_EMPTY(&audiohook_list->manipulate_list)) {
00637 AST_LIST_TRAVERSE_SAFE_BEGIN(&audiohook_list->manipulate_list, audiohook, list) {
00638 ast_audiohook_lock(audiohook);
00639 if (audiohook->status != AST_AUDIOHOOK_STATUS_RUNNING) {
00640 AST_LIST_REMOVE_CURRENT(list);
00641 audiohook->status = AST_AUDIOHOOK_STATUS_DONE;
00642 ast_audiohook_unlock(audiohook);
00643
00644 audiohook->manipulate_callback(audiohook, chan, NULL, direction);
00645 continue;
00646 }
00647
00648 audiohook->manipulate_callback(audiohook, chan, middle_frame, direction);
00649 ast_audiohook_unlock(audiohook);
00650 }
00651 AST_LIST_TRAVERSE_SAFE_END
00652 end_frame = middle_frame;
00653 }
00654
00655
00656 if (middle_frame == end_frame) {
00657
00658 if (end_frame->subclass != start_frame->subclass) {
00659 if (out_translate->format != start_frame->subclass) {
00660 if (out_translate->trans_pvt)
00661 ast_translator_free_path(out_translate->trans_pvt);
00662 if (!(out_translate->trans_pvt = ast_translator_build_path(start_frame->subclass, AST_FORMAT_SLINEAR))) {
00663
00664 ast_frfree(middle_frame);
00665 return start_frame;
00666 }
00667 out_translate->format = start_frame->subclass;
00668 }
00669
00670 if (!(end_frame = ast_translate(out_translate->trans_pvt, middle_frame, 0))) {
00671
00672 ast_frfree(middle_frame);
00673 return start_frame;
00674 }
00675
00676 ast_frfree(middle_frame);
00677 }
00678 } else {
00679
00680 ast_frfree(middle_frame);
00681 }
00682
00683 return end_frame;
00684 }
00685
00686
00687
00688
00689
00690
00691
00692
00693 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)
00694 {
00695
00696 if (frame->frametype == AST_FRAME_VOICE)
00697 return audio_audiohook_write_list(chan, audiohook_list, direction, frame);
00698 else if (frame->frametype == AST_FRAME_DTMF)
00699 return dtmf_audiohook_write_list(chan, audiohook_list, direction, frame);
00700 else
00701 return frame;
00702 }
00703
00704
00705
00706
00707
00708 void ast_audiohook_trigger_wait(struct ast_audiohook *audiohook)
00709 {
00710 struct timeval tv;
00711 struct timespec ts;
00712
00713 tv = ast_tvadd(ast_tvnow(), ast_samp2tv(50000, 1000));
00714 ts.tv_sec = tv.tv_sec;
00715 ts.tv_nsec = tv.tv_usec * 1000;
00716
00717 ast_cond_timedwait(&audiohook->trigger, &audiohook->lock, &ts);
00718
00719 return;
00720 }
00721
00722
00723 int ast_channel_audiohook_count_by_source(struct ast_channel *chan, const char *source, enum ast_audiohook_type type)
00724 {
00725 int count = 0;
00726 struct ast_audiohook *ah = NULL;
00727
00728 if (!chan->audiohooks)
00729 return -1;
00730
00731 switch (type) {
00732 case AST_AUDIOHOOK_TYPE_SPY:
00733 AST_LIST_TRAVERSE_SAFE_BEGIN(&chan->audiohooks->spy_list, ah, list) {
00734 if (!strcmp(ah->source, source)) {
00735 count++;
00736 }
00737 }
00738 AST_LIST_TRAVERSE_SAFE_END;
00739 break;
00740 case AST_AUDIOHOOK_TYPE_WHISPER:
00741 AST_LIST_TRAVERSE_SAFE_BEGIN(&chan->audiohooks->whisper_list, ah, list) {
00742 if (!strcmp(ah->source, source)) {
00743 count++;
00744 }
00745 }
00746 AST_LIST_TRAVERSE_SAFE_END;
00747 break;
00748 case AST_AUDIOHOOK_TYPE_MANIPULATE:
00749 AST_LIST_TRAVERSE_SAFE_BEGIN(&chan->audiohooks->manipulate_list, ah, list) {
00750 if (!strcmp(ah->source, source)) {
00751 count++;
00752 }
00753 }
00754 AST_LIST_TRAVERSE_SAFE_END;
00755 break;
00756 default:
00757 ast_log(LOG_DEBUG, "Invalid audiohook type supplied, (%d)\n", type);
00758 return -1;
00759 }
00760
00761 return count;
00762 }
00763
00764
00765 int ast_channel_audiohook_count_by_source_running(struct ast_channel *chan, const char *source, enum ast_audiohook_type type)
00766 {
00767 int count = 0;
00768 struct ast_audiohook *ah = NULL;
00769 if (!chan->audiohooks)
00770 return -1;
00771
00772 switch (type) {
00773 case AST_AUDIOHOOK_TYPE_SPY:
00774 AST_LIST_TRAVERSE_SAFE_BEGIN(&chan->audiohooks->spy_list, ah, list) {
00775 if ((!strcmp(ah->source, source)) && (ah->status == AST_AUDIOHOOK_STATUS_RUNNING))
00776 count++;
00777 }
00778 AST_LIST_TRAVERSE_SAFE_END;
00779 break;
00780 case AST_AUDIOHOOK_TYPE_WHISPER:
00781 AST_LIST_TRAVERSE_SAFE_BEGIN(&chan->audiohooks->whisper_list, ah, list) {
00782 if ((!strcmp(ah->source, source)) && (ah->status == AST_AUDIOHOOK_STATUS_RUNNING))
00783 count++;
00784 }
00785 AST_LIST_TRAVERSE_SAFE_END;
00786 break;
00787 case AST_AUDIOHOOK_TYPE_MANIPULATE:
00788 AST_LIST_TRAVERSE_SAFE_BEGIN(&chan->audiohooks->manipulate_list, ah, list) {
00789 if ((!strcmp(ah->source, source)) && (ah->status == AST_AUDIOHOOK_STATUS_RUNNING))
00790 count++;
00791 }
00792 AST_LIST_TRAVERSE_SAFE_END;
00793 break;
00794 default:
00795 ast_log(LOG_DEBUG, "Invalid audiohook type supplied, (%d)\n", type);
00796 return -1;
00797 }
00798 return count;
00799 }
00800