#include "asterisk/lock.h"
#include "asterisk/linkedlists.h"
#include "asterisk/slinfactory.h"
Go to the source code of this file.
Data Structures | |
struct | ast_audiohook |
struct | ast_audiohook_options |
Defines | |
#define | ast_audiohook_lock(ah) ast_mutex_lock(&(ah)->lock) |
Lock an audiohook. | |
#define | AST_AUDIOHOOK_SYNC_TOLERANCE 100 |
#define | ast_audiohook_unlock(ah) ast_mutex_unlock(&(ah)->lock) |
Unlock an audiohook. | |
Typedefs | |
typedef int(*) | ast_audiohook_manipulate_callback (struct ast_audiohook *audiohook, struct ast_channel *chan, struct ast_frame *frame, enum ast_audiohook_direction direction) |
Callback function for manipulate audiohook type. | |
Enumerations | |
enum | ast_audiohook_direction { AST_AUDIOHOOK_DIRECTION_READ = 0, AST_AUDIOHOOK_DIRECTION_WRITE, AST_AUDIOHOOK_DIRECTION_BOTH } |
enum | ast_audiohook_flags { AST_AUDIOHOOK_TRIGGER_MODE = (3 << 0), AST_AUDIOHOOK_TRIGGER_READ = (1 << 0), AST_AUDIOHOOK_TRIGGER_WRITE = (2 << 0), AST_AUDIOHOOK_WANTS_DTMF = (1 << 1), AST_AUDIOHOOK_TRIGGER_SYNC = (1 << 2), AST_AUDIOHOOK_SMALL_QUEUE = (1 << 3) } |
enum | ast_audiohook_status { AST_AUDIOHOOK_STATUS_NEW = 0, AST_AUDIOHOOK_STATUS_RUNNING, AST_AUDIOHOOK_STATUS_SHUTDOWN, AST_AUDIOHOOK_STATUS_DONE } |
enum | ast_audiohook_type { AST_AUDIOHOOK_TYPE_SPY = 0, AST_AUDIOHOOK_TYPE_WHISPER, AST_AUDIOHOOK_TYPE_MANIPULATE } |
Functions | |
int | ast_audiohook_attach (struct ast_channel *chan, struct ast_audiohook *audiohook) |
Attach audiohook to channel. | |
int | ast_audiohook_destroy (struct ast_audiohook *audiohook) |
Destroys an audiohook structure. | |
int | ast_audiohook_detach (struct ast_audiohook *audiohook) |
Detach audiohook from channel. | |
int | ast_audiohook_detach_list (struct ast_audiohook_list *audiohook_list) |
Detach audiohooks from list and destroy said list. | |
int | ast_audiohook_detach_source (struct ast_channel *chan, const char *source) |
Detach specified source audiohook from channel. | |
int | ast_audiohook_init (struct ast_audiohook *audiohook, enum ast_audiohook_type type, const char *source) |
Initialize an audiohook structure. | |
void | ast_audiohook_move_by_source (struct ast_channel *old_chan, struct ast_channel *new_chan, const char *source) |
Move an audiohook from one channel to a new one. | |
ast_frame * | ast_audiohook_read_frame (struct ast_audiohook *audiohook, size_t samples, enum ast_audiohook_direction direction, int format) |
Reads a frame in from the audiohook structure. | |
int | ast_audiohook_remove (struct ast_channel *chan, struct ast_audiohook *audiohook) |
Remove an audiohook from a specified channel. | |
void | ast_audiohook_trigger_wait (struct ast_audiohook *audiohook) |
Wait for audiohook trigger to be triggered. | |
int | ast_audiohook_write_frame (struct ast_audiohook *audiohook, enum ast_audiohook_direction direction, struct ast_frame *frame) |
Writes a frame into the audiohook structure. | |
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) |
Pass a frame off to be handled by the audiohook core. | |
int | ast_channel_audiohook_count_by_source (struct ast_channel *chan, const char *source, enum ast_audiohook_type type) |
Find out how many audiohooks from a certain source exist on a given channel, regardless of status. | |
int | ast_channel_audiohook_count_by_source_running (struct ast_channel *chan, const char *source, enum ast_audiohook_type type) |
Find out how many spies of a certain type exist on a given channel, and are in state running. |
Definition in file audiohook.h.
#define ast_audiohook_lock | ( | ah | ) | ast_mutex_lock(&(ah)->lock) |
Lock an audiohook.
ah | Audiohook structure |
Definition at line 235 of file audiohook.h.
Referenced by ast_audiohook_detach_list(), ast_audiohook_move_by_source(), ast_audiohook_remove(), audio_audiohook_write_list(), channel_spy(), dtmf_audiohook_write_list(), mixmonitor_thread(), and spy_generate().
#define AST_AUDIOHOOK_SYNC_TOLERANCE 100 |
#define ast_audiohook_unlock | ( | ah | ) | ast_mutex_unlock(&(ah)->lock) |
Unlock an audiohook.
ah | Audiohook structure |
Definition at line 240 of file audiohook.h.
Referenced by ast_audiohook_detach_list(), ast_audiohook_move_by_source(), ast_audiohook_remove(), audio_audiohook_write_list(), channel_spy(), dtmf_audiohook_write_list(), mixmonitor_thread(), and spy_generate().
typedef int(*) ast_audiohook_manipulate_callback(struct ast_audiohook *audiohook, struct ast_channel *chan, struct ast_frame *frame, enum ast_audiohook_direction direction) |
Callback function for manipulate audiohook type.
audiohook | Audiohook structure | |
chan | Channel | |
frame | Frame of audio to manipulate | |
direction | Direction frame came from |
Definition at line 80 of file audiohook.h.
AST_AUDIOHOOK_DIRECTION_READ | Reading audio in |
AST_AUDIOHOOK_DIRECTION_WRITE | Writing audio out |
AST_AUDIOHOOK_DIRECTION_BOTH | Both reading audio in and writing audio out |
Definition at line 49 of file audiohook.h.
00049 { 00050 AST_AUDIOHOOK_DIRECTION_READ = 0, /*!< Reading audio in */ 00051 AST_AUDIOHOOK_DIRECTION_WRITE, /*!< Writing audio out */ 00052 AST_AUDIOHOOK_DIRECTION_BOTH, /*!< Both reading audio in and writing audio out */ 00053 };
enum ast_audiohook_flags |
Definition at line 55 of file audiohook.h.
00055 { 00056 AST_AUDIOHOOK_TRIGGER_MODE = (3 << 0), /*!< When audiohook should be triggered to do something */ 00057 AST_AUDIOHOOK_TRIGGER_READ = (1 << 0), /*!< Audiohook wants to be triggered when reading audio in */ 00058 AST_AUDIOHOOK_TRIGGER_WRITE = (2 << 0), /*!< Audiohook wants to be triggered when writing audio out */ 00059 AST_AUDIOHOOK_WANTS_DTMF = (1 << 1), /*!< Audiohook also wants to receive DTMF frames */ 00060 AST_AUDIOHOOK_TRIGGER_SYNC = (1 << 2), /*!< Audiohook wants to be triggered when both sides have combined audio available */ 00061 /*! Audiohooks with this flag set will not allow for a large amount of samples to build up on its 00062 * slinfactories. We will flush the factories if they contain too many samples. 00063 */ 00064 AST_AUDIOHOOK_SMALL_QUEUE = (1 << 3), 00065 };
enum ast_audiohook_status |
Definition at line 42 of file audiohook.h.
00042 { 00043 AST_AUDIOHOOK_STATUS_NEW = 0, /*!< Audiohook was just created, not in use yet */ 00044 AST_AUDIOHOOK_STATUS_RUNNING, /*!< Audiohook is running on a channel */ 00045 AST_AUDIOHOOK_STATUS_SHUTDOWN, /*!< Audiohook is being shutdown */ 00046 AST_AUDIOHOOK_STATUS_DONE, /*!< Audiohook has shutdown and is not running on a channel any longer */ 00047 };
enum ast_audiohook_type |
Definition at line 36 of file audiohook.h.
00036 { 00037 AST_AUDIOHOOK_TYPE_SPY = 0, /*!< Audiohook wants to receive audio */ 00038 AST_AUDIOHOOK_TYPE_WHISPER, /*!< Audiohook wants to provide audio to be mixed with existing audio */ 00039 AST_AUDIOHOOK_TYPE_MANIPULATE, /*!< Audiohook wants to manipulate the audio */ 00040 };
int ast_audiohook_attach | ( | struct ast_channel * | chan, | |
struct ast_audiohook * | audiohook | |||
) |
Attach audiohook to channel.
chan | Channel | |
audiohook | Audiohook structure |
Definition at line 330 of file audiohook.c.
References AST_AUDIOHOOK_STATUS_RUNNING, AST_AUDIOHOOK_TYPE_MANIPULATE, AST_AUDIOHOOK_TYPE_SPY, AST_AUDIOHOOK_TYPE_WHISPER, ast_calloc, ast_channel_lock, ast_channel_unlock, AST_LIST_HEAD_INIT_NOLOCK, AST_LIST_INSERT_TAIL, ast_channel::audiohooks, chan, ast_audiohook_list::manipulate_list, ast_audiohook_list::spy_list, ast_audiohook::status, ast_audiohook::type, and ast_audiohook_list::whisper_list.
Referenced by ast_audiohook_move_by_source(), enable_jack_hook(), start_spying(), startmon(), and volume_write().
00331 { 00332 ast_channel_lock(chan); 00333 00334 if (!chan->audiohooks) { 00335 /* Whoops... allocate a new structure */ 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 /* Drop into respective list */ 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 /* Change status over to running since it is now attached */ 00354 audiohook->status = AST_AUDIOHOOK_STATUS_RUNNING; 00355 00356 ast_channel_unlock(chan); 00357 00358 return 0; 00359 }
int ast_audiohook_destroy | ( | struct ast_audiohook * | audiohook | ) |
Destroys an audiohook structure.
audiohook | Audiohook structure |
Definition at line 91 of file audiohook.c.
References AST_AUDIOHOOK_TYPE_SPY, AST_AUDIOHOOK_TYPE_WHISPER, ast_cond_destroy(), ast_mutex_destroy(), ast_slinfactory_destroy(), ast_translator_free_path(), ast_audiohook::lock, ast_audiohook::read_factory, ast_audiohook::trans_pvt, ast_audiohook::trigger, ast_audiohook::type, and ast_audiohook::write_factory.
Referenced by channel_spy(), destroy_callback(), destroy_jack_data(), launch_monitor_thread(), and mixmonitor_thread().
00092 { 00093 /* Drop the factories used by this audiohook type */ 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 /* Destroy translation path if present */ 00105 if (audiohook->trans_pvt) 00106 ast_translator_free_path(audiohook->trans_pvt); 00107 00108 /* Lock and trigger be gone! */ 00109 ast_cond_destroy(&audiohook->trigger); 00110 ast_mutex_destroy(&audiohook->lock); 00111 00112 return 0; 00113 }
int ast_audiohook_detach | ( | struct ast_audiohook * | audiohook | ) |
Detach audiohook from channel.
audiohook | Audiohook structure |
Definition at line 365 of file audiohook.c.
References AST_AUDIOHOOK_STATUS_DONE, AST_AUDIOHOOK_STATUS_SHUTDOWN, ast_audiohook_trigger_wait(), and ast_audiohook::status.
Referenced by channel_spy(), disable_jack_hook(), and mixmonitor_thread().
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 }
int ast_audiohook_detach_list | ( | struct ast_audiohook_list * | audiohook_list | ) |
Detach audiohooks from list and destroy said list.
audiohook_list | List of audiohooks |
Definition at line 382 of file audiohook.c.
References ast_audiohook_lock, AST_AUDIOHOOK_STATUS_DONE, ast_audiohook_unlock, ast_cond_signal(), ast_free, AST_LIST_REMOVE_HEAD, ast_translator_free_path(), ast_audiohook_list::in_translate, ast_audiohook::list, ast_audiohook_list::manipulate_list, ast_audiohook_list::out_translate, ast_audiohook_list::spy_list, ast_audiohook_translate::trans_pvt, and ast_audiohook_list::whisper_list.
Referenced by ast_hangup().
00383 { 00384 int i = 0; 00385 struct ast_audiohook *audiohook = NULL; 00386 00387 /* Drop any spies */ 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 /* Drop any whispering sources */ 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 /* Drop any manipulaters */ 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 /* Drop translation paths if present */ 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 /* Free ourselves */ 00420 ast_free(audiohook_list); 00421 00422 return 0; 00423 }
int ast_audiohook_detach_source | ( | struct ast_channel * | chan, | |
const char * | source | |||
) |
Detach specified source audiohook from channel.
chan | Channel to detach from | |
source | Name of source to detach |
Definition at line 476 of file audiohook.c.
References AST_AUDIOHOOK_STATUS_DONE, AST_AUDIOHOOK_STATUS_SHUTDOWN, ast_channel_lock, ast_channel_unlock, ast_channel::audiohooks, chan, find_audiohook_by_source(), and ast_audiohook::status.
Referenced by handle_cli_mixmonitor(), and stop_mixmonitor_exec().
00477 { 00478 struct ast_audiohook *audiohook = NULL; 00479 00480 ast_channel_lock(chan); 00481 00482 /* Ensure the channel has audiohooks on it */ 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 }
int ast_audiohook_init | ( | struct ast_audiohook * | audiohook, | |
enum ast_audiohook_type | type, | |||
const char * | source | |||
) |
Initialize an audiohook structure.
audiohook | Audiohook structure | |
type | ||
source |
Definition at line 60 of file audiohook.c.
References AST_AUDIOHOOK_STATUS_NEW, AST_AUDIOHOOK_TYPE_SPY, AST_AUDIOHOOK_TYPE_WHISPER, ast_cond_init(), ast_mutex_init(), and ast_slinfactory_init().
Referenced by channel_spy(), enable_jack_hook(), launch_monitor_thread(), and volume_write().
00061 { 00062 /* Need to keep the type and source */ 00063 audiohook->type = type; 00064 audiohook->source = source; 00065 00066 /* Initialize lock that protects our audiohook */ 00067 ast_mutex_init(&audiohook->lock); 00068 ast_cond_init(&audiohook->trigger, NULL); 00069 00070 /* Setup the factories that are needed for this audiohook type */ 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 /* Since we are just starting out... this audiohook is new */ 00082 audiohook->status = AST_AUDIOHOOK_STATUS_NEW; 00083 00084 return 0; 00085 }
void ast_audiohook_move_by_source | ( | struct ast_channel * | old_chan, | |
struct ast_channel * | new_chan, | |||
const char * | source | |||
) |
Move an audiohook from one channel to a new one.
old_chan | The source of the audiohook to move | |
new_chan | The destination to which we want the audiohook to move | |
source | The source of the audiohook we want to move |
Definition at line 452 of file audiohook.c.
References ast_audiohook_attach(), ast_audiohook_lock, ast_audiohook_remove(), ast_audiohook_unlock, ast_channel::audiohooks, and find_audiohook_by_source().
Referenced by audiohook_inheritance_fixup().
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 /* By locking both channels and the audiohook, we can assure that 00461 * another thread will not have a chance to read the audiohook's status 00462 * as done, even though ast_audiohook_remove signals the trigger 00463 * condition 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 }
struct ast_frame* ast_audiohook_read_frame | ( | struct ast_audiohook * | audiohook, | |
size_t | samples, | |||
enum ast_audiohook_direction | direction, | |||
int | format | |||
) |
Reads a frame in from the audiohook structure.
audiohook | Audiohook structure | |
samples | Number of samples wanted | |
direction | Direction the audio frame came from | |
format | Format of frame remote side wants back |
Definition at line 295 of file audiohook.c.
References AST_AUDIOHOOK_DIRECTION_BOTH, AST_FORMAT_SLINEAR, ast_frfree, ast_translate(), ast_translator_build_path(), ast_translator_free_path(), audiohook_read_frame_both(), and audiohook_read_frame_single().
Referenced by mixmonitor_thread(), and spy_generate().
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 /* If they don't want signed linear back out, we'll have to send it through the translation path */ 00303 if (format != AST_FORMAT_SLINEAR) { 00304 /* Rebuild translation path if different format then previously */ 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 /* Setup new translation path for this format... if we fail we can't very well return signed linear so free the frame and return nothing */ 00311 if (!(audiohook->trans_pvt = ast_translator_build_path(format, AST_FORMAT_SLINEAR))) { 00312 ast_frfree(read_frame); 00313 return NULL; 00314 } 00315 } 00316 /* Convert to requested format, and allow the read in frame to be freed */ 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 }
int ast_audiohook_remove | ( | struct ast_channel * | chan, | |
struct ast_audiohook * | audiohook | |||
) |
Remove an audiohook from a specified channel.
chan | Channel to remove from | |
audiohook | Audiohook to remove |
Definition at line 508 of file audiohook.c.
References ast_audiohook_lock, AST_AUDIOHOOK_STATUS_DONE, AST_AUDIOHOOK_TYPE_MANIPULATE, AST_AUDIOHOOK_TYPE_SPY, AST_AUDIOHOOK_TYPE_WHISPER, ast_audiohook_unlock, ast_channel_lock, ast_channel_unlock, ast_cond_signal(), AST_LIST_REMOVE, ast_channel::audiohooks, chan, ast_audiohook::list, ast_audiohook_list::manipulate_list, ast_audiohook_list::spy_list, ast_audiohook::status, ast_audiohook::trigger, ast_audiohook::type, and ast_audiohook_list::whisper_list.
Referenced by ast_audiohook_move_by_source().
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 }
void ast_audiohook_trigger_wait | ( | struct ast_audiohook * | audiohook | ) |
Wait for audiohook trigger to be triggered.
audiohook | Audiohook to wait on |
Definition at line 708 of file audiohook.c.
References ast_cond_timedwait(), ast_samp2tv(), ast_tvadd(), ast_tvnow(), ast_audiohook::lock, and ast_audiohook::trigger.
Referenced by ast_audiohook_detach(), and mixmonitor_thread().
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 }
int ast_audiohook_write_frame | ( | struct ast_audiohook * | audiohook, | |
enum ast_audiohook_direction | direction, | |||
struct ast_frame * | frame | |||
) |
Writes a frame into the audiohook structure.
audiohook | Audiohook structure | |
direction | Direction the audio frame came from | |
frame | Frame to write in |
Definition at line 121 of file audiohook.c.
References AST_AUDIOHOOK_DIRECTION_READ, AST_AUDIOHOOK_DIRECTION_WRITE, AST_AUDIOHOOK_SMALL_QUEUE, AST_AUDIOHOOK_SYNC_TOLERANCE, AST_AUDIOHOOK_TRIGGER_MODE, AST_AUDIOHOOK_TRIGGER_READ, AST_AUDIOHOOK_TRIGGER_SYNC, AST_AUDIOHOOK_TRIGGER_WRITE, ast_cond_signal(), ast_log(), ast_slinfactory_available(), ast_slinfactory_feed(), ast_slinfactory_flush(), ast_test_flag, ast_tvdiff_ms(), ast_tvnow(), LOG_DEBUG, option_debug, ast_audiohook::read_factory, ast_audiohook::read_time, ast_audiohook::trigger, ast_audiohook::write_factory, and ast_audiohook::write_time.
Referenced by audio_audiohook_write_list(), and channel_spy().
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 /* Update last feeding time to be current */ 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 /* Write frame out to respective factory */ 00155 ast_slinfactory_feed(factory, frame); 00156 00157 /* If we need to notify the respective handler of this audiohook, do so */ 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 }
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 | |||
) |
Pass a frame off to be handled by the audiohook core.
chan | Channel that the list is coming off of | |
audiohook_list | List of audiohooks | |
direction | Direction frame is coming in from | |
frame | The frame itself |
Definition at line 693 of file audiohook.c.
References AST_FRAME_DTMF, AST_FRAME_VOICE, audio_audiohook_write_list(), chan, dtmf_audiohook_write_list(), and ast_frame::frametype.
Referenced by __ast_read(), and ast_write().
00694 { 00695 /* Pass off frame to it's respective list write function */ 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 }
int ast_channel_audiohook_count_by_source | ( | struct ast_channel * | chan, | |
const char * | source, | |||
enum ast_audiohook_type | type | |||
) |
Find out how many audiohooks from a certain source exist on a given channel, regardless of status.
chan | The channel on which to find the spies | |
source | The audiohook's source | |
type | The type of audiohook |
Definition at line 723 of file audiohook.c.
References AST_AUDIOHOOK_TYPE_MANIPULATE, AST_AUDIOHOOK_TYPE_SPY, AST_AUDIOHOOK_TYPE_WHISPER, AST_LIST_TRAVERSE_SAFE_BEGIN, AST_LIST_TRAVERSE_SAFE_END, ast_log(), ast_channel::audiohooks, chan, ast_audiohook::list, ast_audiohook_list::manipulate_list, ast_audiohook::source, ast_audiohook_list::spy_list, and ast_audiohook_list::whisper_list.
Referenced by builtin_automixmonitor().
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 }
int ast_channel_audiohook_count_by_source_running | ( | struct ast_channel * | chan, | |
const char * | source, | |||
enum ast_audiohook_type | type | |||
) |
Find out how many spies of a certain type exist on a given channel, and are in state running.
chan | The channel on which to find the spies | |
source | The source of the audiohook | |
type | The type of spy to look for |
Definition at line 765 of file audiohook.c.
References AST_AUDIOHOOK_STATUS_RUNNING, AST_AUDIOHOOK_TYPE_MANIPULATE, AST_AUDIOHOOK_TYPE_SPY, AST_AUDIOHOOK_TYPE_WHISPER, AST_LIST_TRAVERSE_SAFE_BEGIN, AST_LIST_TRAVERSE_SAFE_END, ast_log(), ast_channel::audiohooks, chan, ast_audiohook::list, ast_audiohook_list::manipulate_list, ast_audiohook::source, ast_audiohook_list::spy_list, ast_audiohook::status, and ast_audiohook_list::whisper_list.
Referenced by builtin_automixmonitor().
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 }