#include "asterisk.h"
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <errno.h>
#include <stdio.h>
#include "asterisk/lock.h"
#include "asterisk/frame.h"
#include "asterisk/logger.h"
#include "asterisk/options.h"
#include "asterisk/channel.h"
#include "asterisk/cli.h"
#include "asterisk/term.h"
#include "asterisk/utils.h"
#include "asterisk/threadstorage.h"
#include "asterisk/linkedlists.h"
Go to the source code of this file.
Data Structures | |
struct | ast_codec_alias_table |
struct | ast_frame_cache |
struct | ast_smoother |
Defines | |
#define | FRAME_CACHE_MAX_SIZE 10 |
Maximum ast_frame cache size. | |
#define | SMOOTHER_SIZE 8000 |
#define | TYPE_MASK 0x3 |
Enumerations | |
enum | frame_type { TYPE_HIGH, TYPE_LOW, TYPE_SILENCE, TYPE_DONTSEND } |
Functions | |
int | __ast_smoother_feed (struct ast_smoother *s, struct ast_frame *f, int swap) |
char * | ast_codec2str (int codec) |
Get a name from a format Gets a name from a format. | |
int | ast_codec_choose (struct ast_codec_pref *pref, int formats, int find_best) |
Pick a codec. | |
int | ast_codec_get_len (int format, int samples) |
Returns the number of bytes for the number of samples of the given format. | |
int | ast_codec_get_samples (struct ast_frame *f) |
Returns the number of samples contained in the frame. | |
int | ast_codec_pref_append (struct ast_codec_pref *pref, int format) |
Append codec to list. | |
void | ast_codec_pref_convert (struct ast_codec_pref *pref, char *buf, size_t size, int right) |
Shift an audio codec preference list up or down 65 bytes so that it becomes an ASCII string. | |
struct ast_format_list | ast_codec_pref_getsize (struct ast_codec_pref *pref, int format) |
Get packet size for codec. | |
int | ast_codec_pref_index (struct ast_codec_pref *pref, int index) |
Codec located at a particular place in the preference index See Audio Codec Preferences. | |
void | ast_codec_pref_remove (struct ast_codec_pref *pref, int format) |
Remove codec from pref list. | |
int | ast_codec_pref_setsize (struct ast_codec_pref *pref, int format, int framems) |
Set packet size for codec. | |
int | ast_codec_pref_string (struct ast_codec_pref *pref, char *buf, size_t size) |
Dump audio codec preference list into a string. | |
static const char * | ast_expand_codec_alias (const char *in) |
int | ast_frame_adjust_volume (struct ast_frame *f, int adjustment) |
Adjusts the volume of the audio samples contained in a frame. | |
void | ast_frame_dump (const char *name, struct ast_frame *f, char *prefix) |
void | ast_frame_free (struct ast_frame *fr, int cache) |
Requests a frame to be allocated. | |
static struct ast_frame * | ast_frame_header_new (void) |
int | ast_frame_slinear_sum (struct ast_frame *f1, struct ast_frame *f2) |
Sums two frames of audio samples. | |
struct ast_frame * | ast_frdup (const struct ast_frame *f) |
Copies a frame. | |
struct ast_frame * | ast_frisolate (struct ast_frame *fr) |
'isolates' a frame by duplicating non-malloc'ed components (header, src, data). On return all components are malloc'ed | |
struct ast_format_list * | ast_get_format_list (size_t *size) |
struct ast_format_list * | ast_get_format_list_index (int index) |
int | ast_getformatbyname (const char *name) |
Gets a format from a name. | |
char * | ast_getformatname (int format) |
Get the name of a format. | |
char * | ast_getformatname_multiple (char *buf, size_t size, int format) |
Get the names of a set of formats. | |
AST_LIST_HEAD_NOLOCK (ast_frames, ast_frame) | |
This is just so ast_frames, a list head struct for holding a list of ast_frame structures, is defined. | |
void | ast_parse_allow_disallow (struct ast_codec_pref *pref, int *mask, const char *list, int allowing) |
Parse an "allow" or "deny" line in a channel or device configuration and update the capabilities mask and pref if provided. Video codecs are not added to codec preference lists, since we can not transcode. | |
void | ast_smoother_free (struct ast_smoother *s) |
int | ast_smoother_get_flags (struct ast_smoother *s) |
struct ast_smoother * | ast_smoother_new (int size) |
struct ast_frame * | ast_smoother_read (struct ast_smoother *s) |
void | ast_smoother_reset (struct ast_smoother *s, int size) |
void | ast_smoother_set_flags (struct ast_smoother *s, int flags) |
int | ast_smoother_test_flag (struct ast_smoother *s, int flag) |
void | ast_swapcopy_samples (void *dst, const void *src, int samples) |
AST_THREADSTORAGE_CUSTOM (frame_cache, frame_cache_init, frame_cache_cleanup) | |
A per-thread cache of frame headers. | |
static void | frame_cache_cleanup (void *data) |
static int | g723_len (unsigned char buf) |
static int | g723_samples (unsigned char *buf, int maxlen) |
static unsigned char | get_n_bits_at (unsigned char *data, int n, int bit) |
int | init_framer (void) |
static int | show_codec_n (int fd, int argc, char *argv[]) |
static int | show_codec_n_deprecated (int fd, int argc, char *argv[]) |
static int | show_codecs (int fd, int argc, char *argv[]) |
static int | show_codecs_deprecated (int fd, int argc, char *argv[]) |
static int | speex_get_wb_sz_at (unsigned char *data, int len, int bit) |
static int | speex_samples (unsigned char *data, int len) |
Variables | |
static struct ast_format_list | AST_FORMAT_LIST [] |
Definition of supported media formats (codecs). | |
struct ast_frame | ast_null_frame = { AST_FRAME_NULL, } |
static struct ast_cli_entry | cli_show_audio_codecs |
static struct ast_cli_entry | cli_show_codec |
static struct ast_cli_entry | cli_show_codecs |
static struct ast_cli_entry | cli_show_image_codecs |
static struct ast_cli_entry | cli_show_video_codecs |
static char | frame_show_codec_n_usage [] |
static char | frame_show_codecs_usage [] |
static struct ast_cli_entry | my_clis [] |
Definition in file frame.c.
#define FRAME_CACHE_MAX_SIZE 10 |
Maximum ast_frame cache size.
In most cases where the frame header cache will be useful, the size of the cache will stay very small. However, it is not always the case that the same thread that allocates the frame will be the one freeing them, so sometimes a thread will never have any frames in its cache, or the cache will never be pulled from. For the latter case, we limit the maximum size.
Definition at line 67 of file frame.c.
Referenced by ast_frame_free().
#define SMOOTHER_SIZE 8000 |
#define TYPE_MASK 0x3 |
enum frame_type |
Definition at line 81 of file frame.c.
00081 { 00082 TYPE_HIGH, /* 0x0 */ 00083 TYPE_LOW, /* 0x1 */ 00084 TYPE_SILENCE, /* 0x2 */ 00085 TYPE_DONTSEND /* 0x3 */ 00086 };
int __ast_smoother_feed | ( | struct ast_smoother * | s, | |
struct ast_frame * | f, | |||
int | swap | |||
) |
Definition at line 170 of file frame.c.
References AST_FRAME_VOICE, ast_log(), AST_MIN_OFFSET, AST_SMOOTHER_FLAG_G729, ast_swapcopy_samples(), ast_smoother::data, ast_frame::data, ast_frame::datalen, ast_smoother::delivery, ast_frame::delivery, ast_smoother::flags, ast_smoother::format, ast_frame::frametype, ast_smoother::len, LOG_NOTICE, LOG_WARNING, ast_frame::offset, ast_smoother::opt, ast_smoother::optimizablestream, ast_frame::samples, ast_smoother::samplesperbyte, ast_smoother::size, SMOOTHER_SIZE, and ast_frame::subclass.
00171 { 00172 if (f->frametype != AST_FRAME_VOICE) { 00173 ast_log(LOG_WARNING, "Huh? Can't smooth a non-voice frame!\n"); 00174 return -1; 00175 } 00176 if (!s->format) { 00177 s->format = f->subclass; 00178 s->samplesperbyte = (float)f->samples / (float)f->datalen; 00179 } else if (s->format != f->subclass) { 00180 ast_log(LOG_WARNING, "Smoother was working on %d format frames, now trying to feed %d?\n", s->format, f->subclass); 00181 return -1; 00182 } 00183 if (s->len + f->datalen > SMOOTHER_SIZE) { 00184 ast_log(LOG_WARNING, "Out of smoother space\n"); 00185 return -1; 00186 } 00187 if (((f->datalen == s->size) || ((f->datalen < 10) && (s->flags & AST_SMOOTHER_FLAG_G729))) 00188 && !s->opt && (f->offset >= AST_MIN_OFFSET)) { 00189 if (!s->len) { 00190 /* Optimize by sending the frame we just got 00191 on the next read, thus eliminating the douple 00192 copy */ 00193 if (swap) 00194 ast_swapcopy_samples(f->data, f->data, f->samples); 00195 s->opt = f; 00196 return 0; 00197 } else { 00198 s->optimizablestream++; 00199 if (s->optimizablestream > 10) { 00200 /* For the past 10 rounds, we have input and output 00201 frames of the correct size for this smoother, yet 00202 we were unable to optimize because there was still 00203 some cruft left over. Lets just drop the cruft so 00204 we can move to a fully optimized path */ 00205 if (swap) 00206 ast_swapcopy_samples(f->data, f->data, f->samples); 00207 s->len = 0; 00208 s->opt = f; 00209 return 0; 00210 } 00211 } 00212 } else 00213 s->optimizablestream = 0; 00214 if (s->flags & AST_SMOOTHER_FLAG_G729) { 00215 if (s->len % 10) { 00216 ast_log(LOG_NOTICE, "Dropping extra frame of G.729 since we already have a VAD frame at the end\n"); 00217 return 0; 00218 } 00219 } 00220 if (swap) 00221 ast_swapcopy_samples(s->data+s->len, f->data, f->samples); 00222 else 00223 memcpy(s->data + s->len, f->data, f->datalen); 00224 /* If either side is empty, reset the delivery time */ 00225 if (!s->len || ast_tvzero(f->delivery) || ast_tvzero(s->delivery)) /* XXX really ? */ 00226 s->delivery = f->delivery; 00227 s->len += f->datalen; 00228 return 0; 00229 }
char* ast_codec2str | ( | int | codec | ) |
Get a name from a format Gets a name from a format.
codec | codec number (1,2,4,8,16,etc.) |
Definition at line 605 of file frame.c.
References ast_format_list::desc.
Referenced by moh_alloc(), show_codec_n(), show_codec_n_deprecated(), show_codecs(), and show_codecs_deprecated().
00606 { 00607 int x; 00608 char *ret = "unknown"; 00609 for (x = 0; x < sizeof(AST_FORMAT_LIST) / sizeof(AST_FORMAT_LIST[0]); x++) { 00610 if(AST_FORMAT_LIST[x].visible && AST_FORMAT_LIST[x].bits == codec) { 00611 ret = AST_FORMAT_LIST[x].desc; 00612 break; 00613 } 00614 } 00615 return ret; 00616 }
int ast_codec_choose | ( | struct ast_codec_pref * | pref, | |
int | formats, | |||
int | find_best | |||
) |
Pick a codec.
Select the best audio format according to preference list from supplied options. If "find_best" is non-zero then if nothing is found, the "Best" format of the format list is selected, otherwise 0 is returned.
Definition at line 1249 of file frame.c.
References ast_best_codec(), AST_FORMAT_AUDIO_MASK, ast_log(), ast_format_list::bits, LOG_DEBUG, option_debug, and ast_codec_pref::order.
Referenced by __oh323_new(), gtalk_new(), process_sdp(), sip_new(), and socket_process().
01250 { 01251 int x, ret = 0, slot; 01252 01253 for (x = 0; x < sizeof(AST_FORMAT_LIST) / sizeof(AST_FORMAT_LIST[0]); x++) { 01254 slot = pref->order[x]; 01255 01256 if (!slot) 01257 break; 01258 if (formats & AST_FORMAT_LIST[slot-1].bits) { 01259 ret = AST_FORMAT_LIST[slot-1].bits; 01260 break; 01261 } 01262 } 01263 if(ret & AST_FORMAT_AUDIO_MASK) 01264 return ret; 01265 01266 if (option_debug > 3) 01267 ast_log(LOG_DEBUG, "Could not find preferred codec - %s\n", find_best ? "Going for the best codec" : "Returning zero codec"); 01268 01269 return find_best ? ast_best_codec(formats) : 0; 01270 }
int ast_codec_get_len | ( | int | format, | |
int | samples | |||
) |
Returns the number of bytes for the number of samples of the given format.
Definition at line 1508 of file frame.c.
References AST_FORMAT_ADPCM, AST_FORMAT_ALAW, AST_FORMAT_G726, AST_FORMAT_G726_AAL2, AST_FORMAT_G729A, AST_FORMAT_GSM, AST_FORMAT_ILBC, AST_FORMAT_SLINEAR, AST_FORMAT_ULAW, ast_getformatname(), ast_log(), len, and LOG_WARNING.
Referenced by ast_channel_spy_read_frame(), copy_data_from_queue(), moh_generate(), and monmp3thread().
01509 { 01510 int len = 0; 01511 01512 /* XXX Still need speex, g723, and lpc10 XXX */ 01513 switch(format) { 01514 case AST_FORMAT_ILBC: 01515 len = (samples / 240) * 50; 01516 break; 01517 case AST_FORMAT_GSM: 01518 len = (samples / 160) * 33; 01519 break; 01520 case AST_FORMAT_G729A: 01521 len = samples / 8; 01522 break; 01523 case AST_FORMAT_SLINEAR: 01524 len = samples * 2; 01525 break; 01526 case AST_FORMAT_ULAW: 01527 case AST_FORMAT_ALAW: 01528 len = samples; 01529 break; 01530 case AST_FORMAT_ADPCM: 01531 case AST_FORMAT_G726: 01532 case AST_FORMAT_G726_AAL2: 01533 len = samples / 2; 01534 break; 01535 default: 01536 ast_log(LOG_WARNING, "Unable to calculate sample length for format %s\n", ast_getformatname(format)); 01537 } 01538 01539 return len; 01540 }
int ast_codec_get_samples | ( | struct ast_frame * | f | ) |
Returns the number of samples contained in the frame.
Definition at line 1465 of file frame.c.
References AST_FORMAT_ADPCM, AST_FORMAT_ALAW, AST_FORMAT_G722, AST_FORMAT_G723_1, AST_FORMAT_G726, AST_FORMAT_G726_AAL2, AST_FORMAT_G729A, AST_FORMAT_GSM, AST_FORMAT_ILBC, AST_FORMAT_LPC10, AST_FORMAT_SLINEAR, AST_FORMAT_SPEEX, AST_FORMAT_ULAW, ast_getformatname(), ast_log(), ast_frame::data, ast_frame::datalen, g723_samples(), LOG_WARNING, speex_samples(), and ast_frame::subclass.
Referenced by ast_rtp_read(), isAnsweringMachine(), moh_generate(), schedule_delivery(), and socket_process().
01466 { 01467 int samples=0; 01468 switch(f->subclass) { 01469 case AST_FORMAT_SPEEX: 01470 samples = speex_samples(f->data, f->datalen); 01471 break; 01472 case AST_FORMAT_G723_1: 01473 samples = g723_samples(f->data, f->datalen); 01474 break; 01475 case AST_FORMAT_ILBC: 01476 samples = 240 * (f->datalen / 50); 01477 break; 01478 case AST_FORMAT_GSM: 01479 samples = 160 * (f->datalen / 33); 01480 break; 01481 case AST_FORMAT_G729A: 01482 samples = f->datalen * 8; 01483 break; 01484 case AST_FORMAT_SLINEAR: 01485 samples = f->datalen / 2; 01486 break; 01487 case AST_FORMAT_LPC10: 01488 /* assumes that the RTP packet contains one LPC10 frame */ 01489 samples = 22 * 8; 01490 samples += (((char *)(f->data))[7] & 0x1) * 8; 01491 break; 01492 case AST_FORMAT_ULAW: 01493 case AST_FORMAT_ALAW: 01494 case AST_FORMAT_G722: 01495 samples = f->datalen; 01496 break; 01497 case AST_FORMAT_ADPCM: 01498 case AST_FORMAT_G726: 01499 case AST_FORMAT_G726_AAL2: 01500 samples = f->datalen * 2; 01501 break; 01502 default: 01503 ast_log(LOG_WARNING, "Unable to calculate samples for format %s\n", ast_getformatname(f->subclass)); 01504 } 01505 return samples; 01506 }
int ast_codec_pref_append | ( | struct ast_codec_pref * | pref, | |
int | format | |||
) |
Append codec to list.
Append a audio codec to a preference list, removing it first if it was already there.
Definition at line 1144 of file frame.c.
References ast_codec_pref_remove(), and ast_codec_pref::order.
Referenced by ast_parse_allow_disallow().
01145 { 01146 int x, newindex = -1; 01147 01148 ast_codec_pref_remove(pref, format); 01149 01150 for (x = 0; x < sizeof(AST_FORMAT_LIST) / sizeof(AST_FORMAT_LIST[0]); x++) { 01151 if(AST_FORMAT_LIST[x].bits == format) { 01152 newindex = x + 1; 01153 break; 01154 } 01155 } 01156 01157 if(newindex) { 01158 for (x = 0; x < sizeof(AST_FORMAT_LIST) / sizeof(AST_FORMAT_LIST[0]); x++) { 01159 if(!pref->order[x]) { 01160 pref->order[x] = newindex; 01161 break; 01162 } 01163 } 01164 } 01165 01166 return x; 01167 }
void ast_codec_pref_convert | ( | struct ast_codec_pref * | pref, | |
char * | buf, | |||
size_t | size, | |||
int | right | |||
) |
Shift an audio codec preference list up or down 65 bytes so that it becomes an ASCII string.
Definition at line 1046 of file frame.c.
References ast_codec_pref::order.
Referenced by check_access(), create_addr(), dump_prefs(), and socket_process().
01047 { 01048 int x, differential = (int) 'A', mem; 01049 char *from, *to; 01050 01051 if(right) { 01052 from = pref->order; 01053 to = buf; 01054 mem = size; 01055 } else { 01056 to = pref->order; 01057 from = buf; 01058 mem = 32; 01059 } 01060 01061 memset(to, 0, mem); 01062 for (x = 0; x < 32 ; x++) { 01063 if(!from[x]) 01064 break; 01065 to[x] = right ? (from[x] + differential) : (from[x] - differential); 01066 } 01067 }
struct ast_format_list ast_codec_pref_getsize | ( | struct ast_codec_pref * | pref, | |
int | format | |||
) | [read] |
Get packet size for codec.
Definition at line 1210 of file frame.c.
References ast_format_list::bits, ast_format_list::cur_ms, ast_format_list::def_ms, format, ast_format_list::inc_ms, ast_format_list::max_ms, and ast_format_list::min_ms.
Referenced by add_codec_to_sdp(), ast_rtp_bridge(), ast_rtp_write(), handle_open_receive_channel_ack_message(), and transmit_connect().
01211 { 01212 int x, index = -1, framems = 0; 01213 struct ast_format_list fmt = {0}; 01214 01215 for (x = 0; x < sizeof(AST_FORMAT_LIST) / sizeof(AST_FORMAT_LIST[0]); x++) { 01216 if(AST_FORMAT_LIST[x].bits == format) { 01217 fmt = AST_FORMAT_LIST[x]; 01218 index = x; 01219 break; 01220 } 01221 } 01222 01223 for (x = 0; x < sizeof(AST_FORMAT_LIST) / sizeof(AST_FORMAT_LIST[0]); x++) { 01224 if(pref->order[x] == (index + 1)) { 01225 framems = pref->framing[x]; 01226 break; 01227 } 01228 } 01229 01230 /* size validation */ 01231 if(!framems) 01232 framems = AST_FORMAT_LIST[index].def_ms; 01233 01234 if(AST_FORMAT_LIST[index].inc_ms && framems % AST_FORMAT_LIST[index].inc_ms) /* avoid division by zero */ 01235 framems -= framems % AST_FORMAT_LIST[index].inc_ms; 01236 01237 if(framems < AST_FORMAT_LIST[index].min_ms) 01238 framems = AST_FORMAT_LIST[index].min_ms; 01239 01240 if(framems > AST_FORMAT_LIST[index].max_ms) 01241 framems = AST_FORMAT_LIST[index].max_ms; 01242 01243 fmt.cur_ms = framems; 01244 01245 return fmt; 01246 }
int ast_codec_pref_index | ( | struct ast_codec_pref * | pref, | |
int | index | |||
) |
Codec located at a particular place in the preference index See Audio Codec Preferences.
Definition at line 1104 of file frame.c.
References ast_format_list::bits, and ast_codec_pref::order.
Referenced by _sip_show_peer(), add_sdp(), ast_codec_pref_string(), function_iaxpeer(), function_sippeer(), gtalk_invite(), iax2_show_peer(), print_codec_to_cli(), and socket_process().
01105 { 01106 int slot = 0; 01107 01108 01109 if((index >= 0) && (index < sizeof(pref->order))) { 01110 slot = pref->order[index]; 01111 } 01112 01113 return slot ? AST_FORMAT_LIST[slot-1].bits : 0; 01114 }
void ast_codec_pref_remove | ( | struct ast_codec_pref * | pref, | |
int | format | |||
) |
Remove codec from pref list.
Remove audio a codec from a preference list.
Definition at line 1117 of file frame.c.
References ast_codec_pref::framing, and ast_codec_pref::order.
Referenced by ast_codec_pref_append(), and ast_parse_allow_disallow().
01118 { 01119 struct ast_codec_pref oldorder; 01120 int x, y = 0; 01121 int slot; 01122 int size; 01123 01124 if(!pref->order[0]) 01125 return; 01126 01127 memcpy(&oldorder, pref, sizeof(oldorder)); 01128 memset(pref, 0, sizeof(*pref)); 01129 01130 for (x = 0; x < sizeof(AST_FORMAT_LIST) / sizeof(AST_FORMAT_LIST[0]); x++) { 01131 slot = oldorder.order[x]; 01132 size = oldorder.framing[x]; 01133 if(! slot) 01134 break; 01135 if(AST_FORMAT_LIST[slot-1].bits != format) { 01136 pref->order[y] = slot; 01137 pref->framing[y++] = size; 01138 } 01139 } 01140 01141 }
int ast_codec_pref_setsize | ( | struct ast_codec_pref * | pref, | |
int | format, | |||
int | framems | |||
) |
Set packet size for codec.
Definition at line 1171 of file frame.c.
References ast_format_list::def_ms, ast_codec_pref::framing, ast_format_list::inc_ms, ast_format_list::max_ms, ast_format_list::min_ms, and ast_codec_pref::order.
Referenced by ast_parse_allow_disallow(), and process_sdp().
01172 { 01173 int x, index = -1; 01174 01175 for (x = 0; x < sizeof(AST_FORMAT_LIST) / sizeof(AST_FORMAT_LIST[0]); x++) { 01176 if(AST_FORMAT_LIST[x].bits == format) { 01177 index = x; 01178 break; 01179 } 01180 } 01181 01182 if(index < 0) 01183 return -1; 01184 01185 /* size validation */ 01186 if(!framems) 01187 framems = AST_FORMAT_LIST[index].def_ms; 01188 01189 if(AST_FORMAT_LIST[index].inc_ms && framems % AST_FORMAT_LIST[index].inc_ms) /* avoid division by zero */ 01190 framems -= framems % AST_FORMAT_LIST[index].inc_ms; 01191 01192 if(framems < AST_FORMAT_LIST[index].min_ms) 01193 framems = AST_FORMAT_LIST[index].min_ms; 01194 01195 if(framems > AST_FORMAT_LIST[index].max_ms) 01196 framems = AST_FORMAT_LIST[index].max_ms; 01197 01198 01199 for (x = 0; x < sizeof(AST_FORMAT_LIST) / sizeof(AST_FORMAT_LIST[0]); x++) { 01200 if(pref->order[x] == (index + 1)) { 01201 pref->framing[x] = framems; 01202 break; 01203 } 01204 } 01205 01206 return x; 01207 }
int ast_codec_pref_string | ( | struct ast_codec_pref * | pref, | |
char * | buf, | |||
size_t | size | |||
) |
Dump audio codec preference list into a string.
Definition at line 1069 of file frame.c.
References ast_codec_pref_index(), and ast_getformatname().
Referenced by dump_prefs(), and socket_process().
01070 { 01071 int x, codec; 01072 size_t total_len, slen; 01073 char *formatname; 01074 01075 memset(buf,0,size); 01076 total_len = size; 01077 buf[0] = '('; 01078 total_len--; 01079 for(x = 0; x < 32 ; x++) { 01080 if(total_len <= 0) 01081 break; 01082 if(!(codec = ast_codec_pref_index(pref,x))) 01083 break; 01084 if((formatname = ast_getformatname(codec))) { 01085 slen = strlen(formatname); 01086 if(slen > total_len) 01087 break; 01088 strncat(buf,formatname,total_len); 01089 total_len -= slen; 01090 } 01091 if(total_len && x < 31 && ast_codec_pref_index(pref , x + 1)) { 01092 strncat(buf,"|",total_len); 01093 total_len--; 01094 } 01095 } 01096 if(total_len) { 01097 strncat(buf,")",total_len); 01098 total_len--; 01099 } 01100 01101 return size - total_len; 01102 }
static const char* ast_expand_codec_alias | ( | const char * | in | ) | [static] |
Definition at line 576 of file frame.c.
Referenced by ast_getformatbyname().
00577 { 00578 int x; 00579 00580 for (x = 0; x < sizeof(ast_codec_alias_table) / sizeof(ast_codec_alias_table[0]); x++) { 00581 if(!strcmp(in,ast_codec_alias_table[x].alias)) 00582 return ast_codec_alias_table[x].realname; 00583 } 00584 return in; 00585 }
int ast_frame_adjust_volume | ( | struct ast_frame * | f, | |
int | adjustment | |||
) |
Adjusts the volume of the audio samples contained in a frame.
f | The frame containing the samples (must be AST_FRAME_VOICE and AST_FORMAT_SLINEAR) | |
adjustment | The number of dB to adjust up or down. |
Definition at line 1542 of file frame.c.
References AST_FORMAT_SLINEAR, AST_FRAME_VOICE, ast_slinear_saturated_divide(), ast_slinear_saturated_multiply(), ast_frame::data, ast_frame::frametype, ast_frame::samples, and ast_frame::subclass.
Referenced by ast_channel_spy_read_frame(), ast_write(), and conf_run().
01543 { 01544 int count; 01545 short *fdata = f->data; 01546 short adjust_value = abs(adjustment); 01547 01548 if ((f->frametype != AST_FRAME_VOICE) || (f->subclass != AST_FORMAT_SLINEAR)) 01549 return -1; 01550 01551 if (!adjustment) 01552 return 0; 01553 01554 for (count = 0; count < f->samples; count++) { 01555 if (adjustment > 0) { 01556 ast_slinear_saturated_multiply(&fdata[count], &adjust_value); 01557 } else if (adjustment < 0) { 01558 ast_slinear_saturated_divide(&fdata[count], &adjust_value); 01559 } 01560 } 01561 01562 return 0; 01563 }
void ast_frame_dump | ( | const char * | name, | |
struct ast_frame * | f, | |||
char * | prefix | |||
) |
Dump a frame for debugging purposes
Definition at line 759 of file frame.c.
References AST_CONTROL_ANSWER, AST_CONTROL_BUSY, AST_CONTROL_CONGESTION, AST_CONTROL_FLASH, AST_CONTROL_HANGUP, AST_CONTROL_OFFHOOK, AST_CONTROL_OPTION, AST_CONTROL_RADIO_KEY, AST_CONTROL_RADIO_UNKEY, AST_CONTROL_RING, AST_CONTROL_RINGING, AST_CONTROL_TAKEOFFHOOK, AST_CONTROL_WINK, AST_FRAME_CONTROL, AST_FRAME_DTMF_BEGIN, AST_FRAME_DTMF_END, AST_FRAME_HTML, AST_FRAME_IAX, AST_FRAME_IMAGE, AST_FRAME_MODEM, AST_FRAME_NULL, AST_FRAME_TEXT, AST_FRAME_VIDEO, AST_FRAME_VOICE, ast_getformatname(), AST_HTML_BEGIN, AST_HTML_DATA, AST_HTML_END, AST_HTML_LDCOMPLETE, AST_HTML_LINKREJECT, AST_HTML_LINKURL, AST_HTML_NOSUPPORT, AST_HTML_UNLINK, AST_HTML_URL, AST_MODEM_T38, AST_MODEM_V150, ast_strlen_zero(), ast_verbose(), COLOR_BLACK, COLOR_BRCYAN, COLOR_BRGREEN, COLOR_BRMAGENTA, COLOR_BRRED, COLOR_YELLOW, ast_frame::data, ast_frame::frametype, ast_frame::subclass, and term_color().
Referenced by __ast_read(), and ast_write().
00760 { 00761 const char noname[] = "unknown"; 00762 char ftype[40] = "Unknown Frametype"; 00763 char cft[80]; 00764 char subclass[40] = "Unknown Subclass"; 00765 char csub[80]; 00766 char moreinfo[40] = ""; 00767 char cn[60]; 00768 char cp[40]; 00769 char cmn[40]; 00770 00771 if (!name) 00772 name = noname; 00773 00774 00775 if (!f) { 00776 ast_verbose("%s [ %s (NULL) ] [%s]\n", 00777 term_color(cp, prefix, COLOR_BRMAGENTA, COLOR_BLACK, sizeof(cp)), 00778 term_color(cft, "HANGUP", COLOR_BRRED, COLOR_BLACK, sizeof(cft)), 00779 term_color(cn, name, COLOR_YELLOW, COLOR_BLACK, sizeof(cn))); 00780 return; 00781 } 00782 /* XXX We should probably print one each of voice and video when the format changes XXX */ 00783 if (f->frametype == AST_FRAME_VOICE) 00784 return; 00785 if (f->frametype == AST_FRAME_VIDEO) 00786 return; 00787 switch(f->frametype) { 00788 case AST_FRAME_DTMF_BEGIN: 00789 strcpy(ftype, "DTMF Begin"); 00790 subclass[0] = f->subclass; 00791 subclass[1] = '\0'; 00792 break; 00793 case AST_FRAME_DTMF_END: 00794 strcpy(ftype, "DTMF End"); 00795 subclass[0] = f->subclass; 00796 subclass[1] = '\0'; 00797 break; 00798 case AST_FRAME_CONTROL: 00799 strcpy(ftype, "Control"); 00800 switch(f->subclass) { 00801 case AST_CONTROL_HANGUP: 00802 strcpy(subclass, "Hangup"); 00803 break; 00804 case AST_CONTROL_RING: 00805 strcpy(subclass, "Ring"); 00806 break; 00807 case AST_CONTROL_RINGING: 00808 strcpy(subclass, "Ringing"); 00809 break; 00810 case AST_CONTROL_ANSWER: 00811 strcpy(subclass, "Answer"); 00812 break; 00813 case AST_CONTROL_BUSY: 00814 strcpy(subclass, "Busy"); 00815 break; 00816 case AST_CONTROL_TAKEOFFHOOK: 00817 strcpy(subclass, "Take Off Hook"); 00818 break; 00819 case AST_CONTROL_OFFHOOK: 00820 strcpy(subclass, "Line Off Hook"); 00821 break; 00822 case AST_CONTROL_CONGESTION: 00823 strcpy(subclass, "Congestion"); 00824 break; 00825 case AST_CONTROL_FLASH: 00826 strcpy(subclass, "Flash"); 00827 break; 00828 case AST_CONTROL_WINK: 00829 strcpy(subclass, "Wink"); 00830 break; 00831 case AST_CONTROL_OPTION: 00832 strcpy(subclass, "Option"); 00833 break; 00834 case AST_CONTROL_RADIO_KEY: 00835 strcpy(subclass, "Key Radio"); 00836 break; 00837 case AST_CONTROL_RADIO_UNKEY: 00838 strcpy(subclass, "Unkey Radio"); 00839 break; 00840 case -1: 00841 strcpy(subclass, "Stop generators"); 00842 break; 00843 default: 00844 snprintf(subclass, sizeof(subclass), "Unknown control '%d'", f->subclass); 00845 } 00846 break; 00847 case AST_FRAME_NULL: 00848 strcpy(ftype, "Null Frame"); 00849 strcpy(subclass, "N/A"); 00850 break; 00851 case AST_FRAME_IAX: 00852 /* Should never happen */ 00853 strcpy(ftype, "IAX Specific"); 00854 snprintf(subclass, sizeof(subclass), "IAX Frametype %d", f->subclass); 00855 break; 00856 case AST_FRAME_TEXT: 00857 strcpy(ftype, "Text"); 00858 strcpy(subclass, "N/A"); 00859 ast_copy_string(moreinfo, f->data, sizeof(moreinfo)); 00860 break; 00861 case AST_FRAME_IMAGE: 00862 strcpy(ftype, "Image"); 00863 snprintf(subclass, sizeof(subclass), "Image format %s\n", ast_getformatname(f->subclass)); 00864 break; 00865 case AST_FRAME_HTML: 00866 strcpy(ftype, "HTML"); 00867 switch(f->subclass) { 00868 case AST_HTML_URL: 00869 strcpy(subclass, "URL"); 00870 ast_copy_string(moreinfo, f->data, sizeof(moreinfo)); 00871 break; 00872 case AST_HTML_DATA: 00873 strcpy(subclass, "Data"); 00874 break; 00875 case AST_HTML_BEGIN: 00876 strcpy(subclass, "Begin"); 00877 break; 00878 case AST_HTML_END: 00879 strcpy(subclass, "End"); 00880 break; 00881 case AST_HTML_LDCOMPLETE: 00882 strcpy(subclass, "Load Complete"); 00883 break; 00884 case AST_HTML_NOSUPPORT: 00885 strcpy(subclass, "No Support"); 00886 break; 00887 case AST_HTML_LINKURL: 00888 strcpy(subclass, "Link URL"); 00889 ast_copy_string(moreinfo, f->data, sizeof(moreinfo)); 00890 break; 00891 case AST_HTML_UNLINK: 00892 strcpy(subclass, "Unlink"); 00893 break; 00894 case AST_HTML_LINKREJECT: 00895 strcpy(subclass, "Link Reject"); 00896 break; 00897 default: 00898 snprintf(subclass, sizeof(subclass), "Unknown HTML frame '%d'\n", f->subclass); 00899 break; 00900 } 00901 break; 00902 case AST_FRAME_MODEM: 00903 strcpy(ftype, "Modem"); 00904 switch (f->subclass) { 00905 case AST_MODEM_T38: 00906 strcpy(subclass, "T.38"); 00907 break; 00908 case AST_MODEM_V150: 00909 strcpy(subclass, "V.150"); 00910 break; 00911 default: 00912 snprintf(subclass, sizeof(subclass), "Unknown MODEM frame '%d'\n", f->subclass); 00913 break; 00914 } 00915 break; 00916 default: 00917 snprintf(ftype, sizeof(ftype), "Unknown Frametype '%d'", f->frametype); 00918 } 00919 if (!ast_strlen_zero(moreinfo)) 00920 ast_verbose("%s [ TYPE: %s (%d) SUBCLASS: %s (%d) '%s' ] [%s]\n", 00921 term_color(cp, prefix, COLOR_BRMAGENTA, COLOR_BLACK, sizeof(cp)), 00922 term_color(cft, ftype, COLOR_BRRED, COLOR_BLACK, sizeof(cft)), 00923 f->frametype, 00924 term_color(csub, subclass, COLOR_BRCYAN, COLOR_BLACK, sizeof(csub)), 00925 f->subclass, 00926 term_color(cmn, moreinfo, COLOR_BRGREEN, COLOR_BLACK, sizeof(cmn)), 00927 term_color(cn, name, COLOR_YELLOW, COLOR_BLACK, sizeof(cn))); 00928 else 00929 ast_verbose("%s [ TYPE: %s (%d) SUBCLASS: %s (%d) ] [%s]\n", 00930 term_color(cp, prefix, COLOR_BRMAGENTA, COLOR_BLACK, sizeof(cp)), 00931 term_color(cft, ftype, COLOR_BRRED, COLOR_BLACK, sizeof(cft)), 00932 f->frametype, 00933 term_color(csub, subclass, COLOR_BRCYAN, COLOR_BLACK, sizeof(csub)), 00934 f->subclass, 00935 term_color(cn, name, COLOR_YELLOW, COLOR_BLACK, sizeof(cn))); 00936 }
void ast_frame_free | ( | struct ast_frame * | fr, | |
int | cache | |||
) |
Requests a frame to be allocated.
source | Request a frame be allocated. source is an optional source of the frame, len is the requested length, or "0" if the caller will supply the buffer |
fr | Frame to free | |
cache | Whether to consider this frame for frame caching |
Definition at line 334 of file frame.c.
References AST_LIST_INSERT_HEAD, AST_LIST_LOCK, AST_LIST_REMOVE, AST_LIST_UNLOCK, AST_MALLOCD_DATA, AST_MALLOCD_HDR, AST_MALLOCD_SRC, ast_frame::data, FRAME_CACHE_MAX_SIZE, frames, free, ast_frame_cache::list, ast_frame::mallocd, ast_frame::offset, ast_frame_cache::size, and ast_frame::src.
Referenced by mixmonitor_thread().
00335 { 00336 if (!fr->mallocd) 00337 return; 00338 00339 #if !defined(LOW_MEMORY) 00340 if (cache && fr->mallocd == AST_MALLOCD_HDR) { 00341 /* Cool, only the header is malloc'd, let's just cache those for now 00342 * to keep things simple... */ 00343 struct ast_frame_cache *frames; 00344 00345 if ((frames = ast_threadstorage_get(&frame_cache, sizeof(*frames))) 00346 && frames->size < FRAME_CACHE_MAX_SIZE) { 00347 AST_LIST_INSERT_HEAD(&frames->list, fr, frame_list); 00348 frames->size++; 00349 return; 00350 } 00351 } 00352 #endif 00353 00354 if (fr->mallocd & AST_MALLOCD_DATA) { 00355 if (fr->data) 00356 free(fr->data - fr->offset); 00357 } 00358 if (fr->mallocd & AST_MALLOCD_SRC) { 00359 if (fr->src) 00360 free((char *)fr->src); 00361 } 00362 if (fr->mallocd & AST_MALLOCD_HDR) { 00363 #ifdef TRACE_FRAMES 00364 AST_LIST_LOCK(&headerlist); 00365 headers--; 00366 AST_LIST_REMOVE(&headerlist, fr, frame_list); 00367 AST_LIST_UNLOCK(&headerlist); 00368 #endif 00369 free(fr); 00370 } 00371 }
static struct ast_frame* ast_frame_header_new | ( | void | ) | [static, read] |
Definition at line 286 of file frame.c.
References ast_calloc, ast_calloc_cache, AST_LIST_INSERT_HEAD, AST_LIST_LOCK, AST_LIST_REMOVE_HEAD, AST_LIST_UNLOCK, AST_MALLOCD_HDR, f, frames, ast_frame_cache::list, ast_frame::mallocd, ast_frame::mallocd_hdr_len, and ast_frame_cache::size.
Referenced by ast_frisolate().
00287 { 00288 struct ast_frame *f; 00289 00290 #if !defined(LOW_MEMORY) 00291 struct ast_frame_cache *frames; 00292 00293 if ((frames = ast_threadstorage_get(&frame_cache, sizeof(*frames)))) { 00294 if ((f = AST_LIST_REMOVE_HEAD(&frames->list, frame_list))) { 00295 size_t mallocd_len = f->mallocd_hdr_len; 00296 memset(f, 0, sizeof(*f)); 00297 f->mallocd_hdr_len = mallocd_len; 00298 f->mallocd = AST_MALLOCD_HDR; 00299 frames->size--; 00300 return f; 00301 } 00302 } 00303 if (!(f = ast_calloc_cache(1, sizeof(*f)))) 00304 return NULL; 00305 #else 00306 if (!(f = ast_calloc(1, sizeof(*f)))) 00307 return NULL; 00308 #endif 00309 00310 f->mallocd_hdr_len = sizeof(*f); 00311 #ifdef TRACE_FRAMES 00312 AST_LIST_LOCK(&headerlist); 00313 headers++; 00314 AST_LIST_INSERT_HEAD(&headerlist, f, frame_list); 00315 AST_LIST_UNLOCK(&headerlist); 00316 #endif 00317 00318 return f; 00319 }
Sums two frames of audio samples.
f1 | The first frame (which will contain the result) | |
f2 | The second frame |
Definition at line 1565 of file frame.c.
References AST_FORMAT_SLINEAR, AST_FRAME_VOICE, ast_slinear_saturated_add(), ast_frame::data, ast_frame::frametype, ast_frame::samples, and ast_frame::subclass.
Referenced by ast_channel_spy_read_frame(), and ast_write().
01566 { 01567 int count; 01568 short *data1, *data2; 01569 01570 if ((f1->frametype != AST_FRAME_VOICE) || (f1->subclass != AST_FORMAT_SLINEAR)) 01571 return -1; 01572 01573 if ((f2->frametype != AST_FRAME_VOICE) || (f2->subclass != AST_FORMAT_SLINEAR)) 01574 return -1; 01575 01576 if (f1->samples != f2->samples) 01577 return -1; 01578 01579 for (count = 0, data1 = f1->data, data2 = f2->data; 01580 count < f1->samples; 01581 count++, data1++, data2++) 01582 ast_slinear_saturated_add(data1, data2); 01583 01584 return 0; 01585 }
Copies a frame.
fr | frame to copy Duplicates a frame -- should only rarely be used, typically frisolate is good enough |
Definition at line 434 of file frame.c.
References ast_calloc_cache, AST_FRIENDLY_OFFSET, AST_LIST_REMOVE_CURRENT, AST_LIST_TRAVERSE_SAFE_BEGIN, AST_LIST_TRAVERSE_SAFE_END, AST_MALLOCD_HDR, ast_frame::data, ast_frame::datalen, ast_frame::delivery, frames, ast_frame::frametype, ast_frame::has_timing_info, ast_frame::len, len, ast_frame_cache::list, ast_frame::mallocd, ast_frame::mallocd_hdr_len, ast_frame::offset, ast_frame::samples, ast_frame::seqno, ast_frame_cache::size, ast_frame::src, ast_frame::subclass, and ast_frame::ts.
Referenced by ast_channel_spy_read_frame(), ast_jb_put(), ast_queue_frame(), ast_rtp_write(), ast_slinfactory_feed(), defer_frame(), queue_frame_to_spies(), recordthread(), rpt(), and rpt_exec().
00435 { 00436 struct ast_frame *out = NULL; 00437 int len, srclen = 0; 00438 void *buf = NULL; 00439 00440 #if !defined(LOW_MEMORY) 00441 struct ast_frame_cache *frames; 00442 #endif 00443 00444 /* Start with standard stuff */ 00445 len = sizeof(*out) + AST_FRIENDLY_OFFSET + f->datalen; 00446 /* If we have a source, add space for it */ 00447 /* 00448 * XXX Watch out here - if we receive a src which is not terminated 00449 * properly, we can be easily attacked. Should limit the size we deal with. 00450 */ 00451 if (f->src) 00452 srclen = strlen(f->src); 00453 if (srclen > 0) 00454 len += srclen + 1; 00455 00456 #if !defined(LOW_MEMORY) 00457 if ((frames = ast_threadstorage_get(&frame_cache, sizeof(*frames)))) { 00458 AST_LIST_TRAVERSE_SAFE_BEGIN(&frames->list, out, frame_list) { 00459 if (out->mallocd_hdr_len >= len) { 00460 size_t mallocd_len = out->mallocd_hdr_len; 00461 AST_LIST_REMOVE_CURRENT(&frames->list, frame_list); 00462 memset(out, 0, sizeof(*out)); 00463 out->mallocd_hdr_len = mallocd_len; 00464 buf = out; 00465 frames->size--; 00466 break; 00467 } 00468 } 00469 AST_LIST_TRAVERSE_SAFE_END 00470 } 00471 #endif 00472 00473 if (!buf) { 00474 if (!(buf = ast_calloc_cache(1, len))) 00475 return NULL; 00476 out = buf; 00477 out->mallocd_hdr_len = len; 00478 } 00479 00480 out->frametype = f->frametype; 00481 out->subclass = f->subclass; 00482 out->datalen = f->datalen; 00483 out->samples = f->samples; 00484 out->delivery = f->delivery; 00485 /* Set us as having malloc'd header only, so it will eventually 00486 get freed. */ 00487 out->mallocd = AST_MALLOCD_HDR; 00488 out->offset = AST_FRIENDLY_OFFSET; 00489 if (out->datalen) { 00490 out->data = buf + sizeof(*out) + AST_FRIENDLY_OFFSET; 00491 memcpy(out->data, f->data, out->datalen); 00492 } 00493 if (srclen > 0) { 00494 out->src = buf + sizeof(*out) + AST_FRIENDLY_OFFSET + f->datalen; 00495 /* Must have space since we allocated for it */ 00496 strcpy((char *)out->src, f->src); 00497 } 00498 out->has_timing_info = f->has_timing_info; 00499 out->ts = f->ts; 00500 out->len = f->len; 00501 out->seqno = f->seqno; 00502 return out; 00503 }
'isolates' a frame by duplicating non-malloc'ed components (header, src, data). On return all components are malloc'ed
Makes a frame independent of any static storage.
Definition at line 378 of file frame.c.
References ast_frame_header_new(), AST_FRIENDLY_OFFSET, ast_malloc, AST_MALLOCD_DATA, AST_MALLOCD_HDR, AST_MALLOCD_SRC, ast_strdup, ast_frame::data, ast_frame::datalen, ast_frame::frametype, free, ast_frame::has_timing_info, ast_frame::len, ast_frame::mallocd, ast_frame::offset, ast_frame::samples, ast_frame::seqno, ast_frame::src, ast_frame::subclass, and ast_frame::ts.
Referenced by jpeg_read_image().
00379 { 00380 struct ast_frame *out; 00381 void *newdata; 00382 00383 if (!(fr->mallocd & AST_MALLOCD_HDR)) { 00384 /* Allocate a new header if needed */ 00385 if (!(out = ast_frame_header_new())) 00386 return NULL; 00387 out->frametype = fr->frametype; 00388 out->subclass = fr->subclass; 00389 out->datalen = fr->datalen; 00390 out->samples = fr->samples; 00391 out->offset = fr->offset; 00392 out->data = fr->data; 00393 /* Copy the timing data */ 00394 out->has_timing_info = fr->has_timing_info; 00395 if (fr->has_timing_info) { 00396 out->ts = fr->ts; 00397 out->len = fr->len; 00398 out->seqno = fr->seqno; 00399 } 00400 } else 00401 out = fr; 00402 00403 if (!(fr->mallocd & AST_MALLOCD_SRC)) { 00404 if (fr->src) { 00405 if (!(out->src = ast_strdup(fr->src))) { 00406 if (out != fr) 00407 free(out); 00408 return NULL; 00409 } 00410 } 00411 } else 00412 out->src = fr->src; 00413 00414 if (!(fr->mallocd & AST_MALLOCD_DATA)) { 00415 if (!(newdata = ast_malloc(fr->datalen + AST_FRIENDLY_OFFSET))) { 00416 if (out->src != fr->src) 00417 free((void *) out->src); 00418 if (out != fr) 00419 free(out); 00420 return NULL; 00421 } 00422 newdata += AST_FRIENDLY_OFFSET; 00423 out->offset = AST_FRIENDLY_OFFSET; 00424 out->datalen = fr->datalen; 00425 memcpy(newdata, fr->data, fr->datalen); 00426 out->data = newdata; 00427 } 00428 00429 out->mallocd = AST_MALLOCD_HDR | AST_MALLOCD_SRC | AST_MALLOCD_DATA; 00430 00431 return out; 00432 }
struct ast_format_list* ast_get_format_list | ( | size_t * | size | ) | [read] |
Definition at line 521 of file frame.c.
00522 { 00523 *size = (sizeof(AST_FORMAT_LIST) / sizeof(AST_FORMAT_LIST[0])); 00524 return AST_FORMAT_LIST; 00525 }
struct ast_format_list* ast_get_format_list_index | ( | int | index | ) | [read] |
int ast_getformatbyname | ( | const char * | name | ) |
Gets a format from a name.
name | string of format |
Definition at line 587 of file frame.c.
References ast_expand_codec_alias(), ast_format_list::bits, and format.
Referenced by ast_parse_allow_disallow(), iax_template_parse(), load_moh_classes(), reload_config(), and try_suggested_sip_codec().
00588 { 00589 int x, all, format = 0; 00590 00591 all = strcasecmp(name, "all") ? 0 : 1; 00592 for (x = 0; x < sizeof(AST_FORMAT_LIST) / sizeof(AST_FORMAT_LIST[0]); x++) { 00593 if(AST_FORMAT_LIST[x].visible && (all || 00594 !strcasecmp(AST_FORMAT_LIST[x].name,name) || 00595 !strcasecmp(AST_FORMAT_LIST[x].name,ast_expand_codec_alias(name)))) { 00596 format |= AST_FORMAT_LIST[x].bits; 00597 if(!all) 00598 break; 00599 } 00600 } 00601 00602 return format; 00603 }
char* ast_getformatname | ( | int | format | ) |
Get the name of a format.
format | id of format |
Definition at line 527 of file frame.c.
References ast_format_list::bits, ast_format_list::name, and ast_format_list::visible.
Referenced by __ast_play_and_record(), __ast_read(), __ast_register_translator(), __login_exec(), _sip_show_peer(), add_codec_to_answer(), add_codec_to_sdp(), agent_call(), ast_channel_spy_add(), ast_codec_get_len(), ast_codec_get_samples(), ast_codec_pref_string(), ast_dsp_process(), ast_frame_dump(), ast_openvstream(), ast_rtp_write(), ast_slinfactory_feed(), ast_streamfile(), ast_translator_build_path(), ast_unregister_translator(), ast_writestream(), background_detect_exec(), do_waiting(), eagi_exec(), func_channel_read(), function_iaxpeer(), function_sippeer(), gtalk_show_channels(), iax2_request(), iax2_show_channels(), iax2_show_peer(), iax_show_provisioning(), moh_classes_show(), moh_release(), oh323_rtp_read(), phone_setup(), print_codec_to_cli(), queue_frame_to_spies(), rebuild_matrix(), register_translator(), set_format(), set_peer_capabilities(), show_codecs(), show_codecs_deprecated(), show_file_formats(), show_file_formats_deprecated(), show_image_formats(), show_image_formats_deprecated(), show_translation(), show_translation_deprecated(), sip_request_call(), sip_rtp_read(), socket_process(), xagi_exec(), and zt_read().
00528 { 00529 int x; 00530 char *ret = "unknown"; 00531 for (x = 0; x < sizeof(AST_FORMAT_LIST) / sizeof(AST_FORMAT_LIST[0]); x++) { 00532 if(AST_FORMAT_LIST[x].visible && AST_FORMAT_LIST[x].bits == format) { 00533 ret = AST_FORMAT_LIST[x].name; 00534 break; 00535 } 00536 } 00537 return ret; 00538 }
char* ast_getformatname_multiple | ( | char * | buf, | |
size_t | size, | |||
int | format | |||
) |
Get the names of a set of formats.
buf | a buffer for the output string | |
size | size of buf (bytes) | |
format | the format (combined IDs of codecs) Prints a list of readable codec names corresponding to "format". ex: for format=AST_FORMAT_GSM|AST_FORMAT_SPEEX|AST_FORMAT_ILBC it will return "0x602 (GSM|SPEEX|ILBC)" |
Definition at line 540 of file frame.c.
References ast_format_list::bits, len, name, and ast_format_list::visible.
Referenced by __sip_show_channels(), _sip_show_peer(), add_sdp(), ast_streamfile(), function_iaxpeer(), function_sippeer(), handle_showchan(), handle_showchan_deprecated(), iax2_bridge(), iax2_show_peer(), process_sdp(), serialize_showchan(), sip_new(), sip_request_call(), sip_show_channel(), sip_show_settings(), and sip_write().
00541 { 00542 int x; 00543 unsigned len; 00544 char *start, *end = buf; 00545 00546 if (!size) 00547 return buf; 00548 snprintf(end, size, "0x%x (", format); 00549 len = strlen(end); 00550 end += len; 00551 size -= len; 00552 start = end; 00553 for (x = 0; x < sizeof(AST_FORMAT_LIST) / sizeof(AST_FORMAT_LIST[0]); x++) { 00554 if (AST_FORMAT_LIST[x].visible && (AST_FORMAT_LIST[x].bits & format)) { 00555 snprintf(end, size,"%s|",AST_FORMAT_LIST[x].name); 00556 len = strlen(end); 00557 end += len; 00558 size -= len; 00559 } 00560 } 00561 if (start == end) 00562 snprintf(start, size, "nothing)"); 00563 else if (size > 1) 00564 *(end -1) = ')'; 00565 return buf; 00566 }
AST_LIST_HEAD_NOLOCK | ( | ast_frames | , | |
ast_frame | ||||
) |
This is just so ast_frames, a list head struct for holding a list of ast_frame structures, is defined.
void ast_parse_allow_disallow | ( | struct ast_codec_pref * | pref, | |
int * | mask, | |||
const char * | list, | |||
int | allowing | |||
) |
Parse an "allow" or "deny" line in a channel or device configuration and update the capabilities mask and pref if provided. Video codecs are not added to codec preference lists, since we can not transcode.
Definition at line 1272 of file frame.c.
References ast_codec_pref_append(), ast_codec_pref_remove(), ast_codec_pref_setsize(), AST_FORMAT_AUDIO_MASK, ast_getformatbyname(), ast_log(), ast_strdupa, format, LOG_DEBUG, LOG_WARNING, option_debug, parse(), and strsep().
Referenced by build_device(), build_peer(), build_user(), gtalk_create_member(), gtalk_load_config(), reload_config(), set_config(), and update_common_options().
01273 { 01274 char *parse = NULL, *this = NULL, *psize = NULL; 01275 int format = 0, framems = 0; 01276 01277 parse = ast_strdupa(list); 01278 while ((this = strsep(&parse, ","))) { 01279 framems = 0; 01280 if ((psize = strrchr(this, ':'))) { 01281 *psize++ = '\0'; 01282 if (option_debug) 01283 ast_log(LOG_DEBUG,"Packetization for codec: %s is %s\n", this, psize); 01284 framems = atoi(psize); 01285 if (framems < 0) 01286 framems = 0; 01287 } 01288 if (!(format = ast_getformatbyname(this))) { 01289 ast_log(LOG_WARNING, "Cannot %s unknown format '%s'\n", allowing ? "allow" : "disallow", this); 01290 continue; 01291 } 01292 01293 if (mask) { 01294 if (allowing) 01295 *mask |= format; 01296 else 01297 *mask &= ~format; 01298 } 01299 01300 /* Set up a preference list for audio. Do not include video in preferences 01301 since we can not transcode video and have to use whatever is offered 01302 */ 01303 if (pref && (format & AST_FORMAT_AUDIO_MASK)) { 01304 if (strcasecmp(this, "all")) { 01305 if (allowing) { 01306 ast_codec_pref_append(pref, format); 01307 ast_codec_pref_setsize(pref, format, framems); 01308 } 01309 else 01310 ast_codec_pref_remove(pref, format); 01311 } else if (!allowing) { 01312 memset(pref, 0, sizeof(*pref)); 01313 } 01314 } 01315 } 01316 }
void ast_smoother_free | ( | struct ast_smoother * | s | ) |
Definition at line 281 of file frame.c.
References free.
Referenced by ast_rtp_codec_setpref(), ast_rtp_destroy(), and ast_rtp_write().
00282 { 00283 free(s); 00284 }
int ast_smoother_get_flags | ( | struct ast_smoother * | s | ) |
Definition at line 155 of file frame.c.
References ast_smoother::flags.
00156 { 00157 return s->flags; 00158 }
struct ast_smoother* ast_smoother_new | ( | int | size | ) | [read] |
Definition at line 145 of file frame.c.
References ast_malloc, ast_smoother_reset(), and s.
Referenced by ast_rtp_write().
00146 { 00147 struct ast_smoother *s; 00148 if (size < 1) 00149 return NULL; 00150 if ((s = ast_malloc(sizeof(*s)))) 00151 ast_smoother_reset(s, size); 00152 return s; 00153 }
struct ast_frame* ast_smoother_read | ( | struct ast_smoother * | s | ) | [read] |
Definition at line 231 of file frame.c.
References AST_FRAME_VOICE, AST_FRIENDLY_OFFSET, ast_log(), AST_SMOOTHER_FLAG_G729, ast_tvadd(), ast_smoother::data, ast_frame::data, ast_frame::datalen, ast_smoother::delivery, ast_frame::delivery, ast_smoother::f, ast_smoother::flags, ast_smoother::format, ast_smoother::framedata, ast_frame::frametype, ast_smoother::len, len, LOG_WARNING, ast_frame::offset, ast_smoother::opt, ast_frame::samples, ast_smoother::samplesperbyte, ast_smoother::size, and ast_frame::subclass.
Referenced by ast_rtp_write().
00232 { 00233 struct ast_frame *opt; 00234 int len; 00235 00236 /* IF we have an optimization frame, send it */ 00237 if (s->opt) { 00238 if (s->opt->offset < AST_FRIENDLY_OFFSET) 00239 ast_log(LOG_WARNING, "Returning a frame of inappropriate offset (%d).\n", 00240 s->opt->offset); 00241 opt = s->opt; 00242 s->opt = NULL; 00243 return opt; 00244 } 00245 00246 /* Make sure we have enough data */ 00247 if (s->len < s->size) { 00248 /* Or, if this is a G.729 frame with VAD on it, send it immediately anyway */ 00249 if (!((s->flags & AST_SMOOTHER_FLAG_G729) && (s->size % 10))) 00250 return NULL; 00251 } 00252 len = s->size; 00253 if (len > s->len) 00254 len = s->len; 00255 /* Make frame */ 00256 s->f.frametype = AST_FRAME_VOICE; 00257 s->f.subclass = s->format; 00258 s->f.data = s->framedata + AST_FRIENDLY_OFFSET; 00259 s->f.offset = AST_FRIENDLY_OFFSET; 00260 s->f.datalen = len; 00261 /* Samples will be improper given VAD, but with VAD the concept really doesn't even exist */ 00262 s->f.samples = len * s->samplesperbyte; /* XXX rounding */ 00263 s->f.delivery = s->delivery; 00264 /* Fill Data */ 00265 memcpy(s->f.data, s->data, len); 00266 s->len -= len; 00267 /* Move remaining data to the front if applicable */ 00268 if (s->len) { 00269 /* In principle this should all be fine because if we are sending 00270 G.729 VAD, the next timestamp will take over anyawy */ 00271 memmove(s->data, s->data + len, s->len); 00272 if (!ast_tvzero(s->delivery)) { 00273 /* If we have delivery time, increment it, otherwise, leave it at 0 */ 00274 s->delivery = ast_tvadd(s->delivery, ast_samp2tv(s->f.samples, 8000)); 00275 } 00276 } 00277 /* Return frame */ 00278 return &s->f; 00279 }
void ast_smoother_reset | ( | struct ast_smoother * | s, | |
int | size | |||
) |
Definition at line 139 of file frame.c.
References ast_smoother::size.
Referenced by ast_smoother_new().
00140 { 00141 memset(s, 0, sizeof(*s)); 00142 s->size = size; 00143 }
void ast_smoother_set_flags | ( | struct ast_smoother * | s, | |
int | flags | |||
) |
Definition at line 160 of file frame.c.
References ast_smoother::flags.
Referenced by ast_rtp_write().
00161 { 00162 s->flags = flags; 00163 }
int ast_smoother_test_flag | ( | struct ast_smoother * | s, | |
int | flag | |||
) |
Definition at line 165 of file frame.c.
References ast_smoother::flags.
Referenced by ast_rtp_write().
00166 { 00167 return (s->flags & flag); 00168 }
void ast_swapcopy_samples | ( | void * | dst, | |
const void * | src, | |||
int | samples | |||
) |
Definition at line 505 of file frame.c.
Referenced by __ast_smoother_feed(), iax_frame_wrap(), and phone_write_buf().
00506 { 00507 int i; 00508 unsigned short *dst_s = dst; 00509 const unsigned short *src_s = src; 00510 00511 for (i = 0; i < samples; i++) 00512 dst_s[i] = (src_s[i]<<8) | (src_s[i]>>8); 00513 }
AST_THREADSTORAGE_CUSTOM | ( | frame_cache | , | |
frame_cache_init | , | |||
frame_cache_cleanup | ||||
) |
A per-thread cache of frame headers.
static void frame_cache_cleanup | ( | void * | data | ) | [static] |
Definition at line 322 of file frame.c.
References AST_LIST_REMOVE_HEAD, f, frames, free, and ast_frame_cache::list.
00323 { 00324 struct ast_frame_cache *frames = data; 00325 struct ast_frame *f; 00326 00327 while ((f = AST_LIST_REMOVE_HEAD(&frames->list, frame_list))) 00328 free(f); 00329 00330 free(frames); 00331 }
static int g723_len | ( | unsigned char | buf | ) | [static] |
Definition at line 1318 of file frame.c.
References ast_log(), LOG_WARNING, type, TYPE_DONTSEND, TYPE_HIGH, TYPE_LOW, TYPE_MASK, and TYPE_SILENCE.
Referenced by g723_samples().
01319 { 01320 enum frame_type type = buf & TYPE_MASK; 01321 01322 switch(type) { 01323 case TYPE_DONTSEND: 01324 return 0; 01325 break; 01326 case TYPE_SILENCE: 01327 return 4; 01328 break; 01329 case TYPE_HIGH: 01330 return 24; 01331 break; 01332 case TYPE_LOW: 01333 return 20; 01334 break; 01335 default: 01336 ast_log(LOG_WARNING, "Badly encoded frame (%d)\n", type); 01337 } 01338 return -1; 01339 }
static int g723_samples | ( | unsigned char * | buf, | |
int | maxlen | |||
) | [static] |
Definition at line 1341 of file frame.c.
References g723_len().
Referenced by ast_codec_get_samples().
01342 { 01343 int pos = 0; 01344 int samples = 0; 01345 int res; 01346 while(pos < maxlen) { 01347 res = g723_len(buf[pos]); 01348 if (res <= 0) 01349 break; 01350 samples += 240; 01351 pos += res; 01352 } 01353 return samples; 01354 }
static unsigned char get_n_bits_at | ( | unsigned char * | data, | |
int | n, | |||
int | bit | |||
) | [static] |
Definition at line 1356 of file frame.c.
Referenced by speex_get_wb_sz_at(), and speex_samples().
01357 { 01358 int byte = bit / 8; /* byte containing first bit */ 01359 int rem = 8 - (bit % 8); /* remaining bits in first byte */ 01360 unsigned char ret = 0; 01361 01362 if (n <= 0 || n > 8) 01363 return 0; 01364 01365 if (rem < n) { 01366 ret = (data[byte] << (n - rem)); 01367 ret |= (data[byte + 1] >> (8 - n + rem)); 01368 } else { 01369 ret = (data[byte] >> (rem - n)); 01370 } 01371 01372 return (ret & (0xff >> (8 - n))); 01373 }
int init_framer | ( | void | ) |
Provided by frame.c
Definition at line 1040 of file frame.c.
References ast_cli_register_multiple().
Referenced by main().
01041 { 01042 ast_cli_register_multiple(my_clis, sizeof(my_clis) / sizeof(struct ast_cli_entry)); 01043 return 0; 01044 }
static int show_codec_n | ( | int | fd, | |
int | argc, | |||
char * | argv[] | |||
) | [static] |
Definition at line 732 of file frame.c.
References ast_cli(), ast_codec2str(), RESULT_SHOWUSAGE, and RESULT_SUCCESS.
00733 { 00734 int codec, i, found=0; 00735 00736 if (argc != 4) 00737 return RESULT_SHOWUSAGE; 00738 00739 if (sscanf(argv[3],"%d",&codec) != 1) 00740 return RESULT_SHOWUSAGE; 00741 00742 for (i = 0; i < 32; i++) 00743 if (codec & (1 << i)) { 00744 found = 1; 00745 ast_cli(fd, "%11u (1 << %2d) %s\n",1 << i,i,ast_codec2str(1<<i)); 00746 } 00747 00748 if (!found) 00749 ast_cli(fd, "Codec %d not found\n", codec); 00750 00751 return RESULT_SUCCESS; 00752 }
static int show_codec_n_deprecated | ( | int | fd, | |
int | argc, | |||
char * | argv[] | |||
) | [static] |
Definition at line 710 of file frame.c.
References ast_cli(), ast_codec2str(), RESULT_SHOWUSAGE, and RESULT_SUCCESS.
00711 { 00712 int codec, i, found=0; 00713 00714 if (argc != 3) 00715 return RESULT_SHOWUSAGE; 00716 00717 if (sscanf(argv[2],"%d",&codec) != 1) 00718 return RESULT_SHOWUSAGE; 00719 00720 for (i = 0; i < 32; i++) 00721 if (codec & (1 << i)) { 00722 found = 1; 00723 ast_cli(fd, "%11u (1 << %2d) %s\n",1 << i,i,ast_codec2str(1<<i)); 00724 } 00725 00726 if (!found) 00727 ast_cli(fd, "Codec %d not found\n", codec); 00728 00729 return RESULT_SUCCESS; 00730 }
static int show_codecs | ( | int | fd, | |
int | argc, | |||
char * | argv[] | |||
) | [static] |
Definition at line 662 of file frame.c.
References ast_cli(), ast_codec2str(), ast_getformatname(), ast_opt_dont_warn, RESULT_SHOWUSAGE, and RESULT_SUCCESS.
00663 { 00664 int i, found=0; 00665 char hex[25]; 00666 00667 if ((argc < 3) || (argc > 4)) 00668 return RESULT_SHOWUSAGE; 00669 00670 if (!ast_opt_dont_warn) 00671 ast_cli(fd, "Disclaimer: this command is for informational purposes only.\n" 00672 "\tIt does not indicate anything about your configuration.\n"); 00673 00674 ast_cli(fd, "%11s %9s %10s TYPE %8s %s\n","INT","BINARY","HEX","NAME","DESC"); 00675 ast_cli(fd, "--------------------------------------------------------------------------------\n"); 00676 if ((argc == 3) || (!strcasecmp(argv[3],"audio"))) { 00677 found = 1; 00678 for (i=0;i<13;i++) { 00679 snprintf(hex,25,"(0x%x)",1<<i); 00680 ast_cli(fd, "%11u (1 << %2d) %10s audio %8s (%s)\n",1 << i,i,hex,ast_getformatname(1<<i),ast_codec2str(1<<i)); 00681 } 00682 } 00683 00684 if ((argc == 3) || (!strcasecmp(argv[3],"image"))) { 00685 found = 1; 00686 for (i=16;i<18;i++) { 00687 snprintf(hex,25,"(0x%x)",1<<i); 00688 ast_cli(fd, "%11u (1 << %2d) %10s image %8s (%s)\n",1 << i,i,hex,ast_getformatname(1<<i),ast_codec2str(1<<i)); 00689 } 00690 } 00691 00692 if ((argc == 3) || (!strcasecmp(argv[3],"video"))) { 00693 found = 1; 00694 for (i=18;i<22;i++) { 00695 snprintf(hex,25,"(0x%x)",1<<i); 00696 ast_cli(fd, "%11u (1 << %2d) %10s video %8s (%s)\n",1 << i,i,hex,ast_getformatname(1<<i),ast_codec2str(1<<i)); 00697 } 00698 } 00699 00700 if (! found) 00701 return RESULT_SHOWUSAGE; 00702 else 00703 return RESULT_SUCCESS; 00704 }
static int show_codecs_deprecated | ( | int | fd, | |
int | argc, | |||
char * | argv[] | |||
) | [static] |
Definition at line 618 of file frame.c.
References ast_cli(), ast_codec2str(), ast_getformatname(), ast_opt_dont_warn, RESULT_SHOWUSAGE, and RESULT_SUCCESS.
00619 { 00620 int i, found=0; 00621 char hex[25]; 00622 00623 if ((argc < 2) || (argc > 3)) 00624 return RESULT_SHOWUSAGE; 00625 00626 if (!ast_opt_dont_warn) 00627 ast_cli(fd, "Disclaimer: this command is for informational purposes only.\n" 00628 "\tIt does not indicate anything about your configuration.\n"); 00629 00630 ast_cli(fd, "%11s %9s %10s TYPE %8s %s\n","INT","BINARY","HEX","NAME","DESC"); 00631 ast_cli(fd, "--------------------------------------------------------------------------------\n"); 00632 if ((argc == 2) || (!strcasecmp(argv[1],"audio"))) { 00633 found = 1; 00634 for (i=0;i<13;i++) { 00635 snprintf(hex,25,"(0x%x)",1<<i); 00636 ast_cli(fd, "%11u (1 << %2d) %10s audio %8s (%s)\n",1 << i,i,hex,ast_getformatname(1<<i),ast_codec2str(1<<i)); 00637 } 00638 } 00639 00640 if ((argc == 2) || (!strcasecmp(argv[1],"image"))) { 00641 found = 1; 00642 for (i=16;i<18;i++) { 00643 snprintf(hex,25,"(0x%x)",1<<i); 00644 ast_cli(fd, "%11u (1 << %2d) %10s image %8s (%s)\n",1 << i,i,hex,ast_getformatname(1<<i),ast_codec2str(1<<i)); 00645 } 00646 } 00647 00648 if ((argc == 2) || (!strcasecmp(argv[1],"video"))) { 00649 found = 1; 00650 for (i=18;i<22;i++) { 00651 snprintf(hex,25,"(0x%x)",1<<i); 00652 ast_cli(fd, "%11u (1 << %2d) %10s video %8s (%s)\n",1 << i,i,hex,ast_getformatname(1<<i),ast_codec2str(1<<i)); 00653 } 00654 } 00655 00656 if (! found) 00657 return RESULT_SHOWUSAGE; 00658 else 00659 return RESULT_SUCCESS; 00660 }
static int speex_get_wb_sz_at | ( | unsigned char * | data, | |
int | len, | |||
int | bit | |||
) | [static] |
Definition at line 1375 of file frame.c.
References ast_log(), get_n_bits_at(), and LOG_WARNING.
Referenced by speex_samples().
01376 { 01377 static int SpeexWBSubModeSz[] = { 01378 0, 36, 112, 192, 01379 352, 0, 0, 0 }; 01380 int off = bit; 01381 unsigned char c; 01382 01383 /* skip up to two wideband frames */ 01384 if (((len * 8 - off) >= 5) && 01385 get_n_bits_at(data, 1, off)) { 01386 c = get_n_bits_at(data, 3, off + 1); 01387 off += SpeexWBSubModeSz[c]; 01388 01389 if (((len * 8 - off) >= 5) && 01390 get_n_bits_at(data, 1, off)) { 01391 c = get_n_bits_at(data, 3, off + 1); 01392 off += SpeexWBSubModeSz[c]; 01393 01394 if (((len * 8 - off) >= 5) && 01395 get_n_bits_at(data, 1, off)) { 01396 ast_log(LOG_WARNING, "Encountered corrupt speex frame; too many wideband frames in a row.\n"); 01397 return -1; 01398 } 01399 } 01400 01401 } 01402 return off - bit; 01403 }
static int speex_samples | ( | unsigned char * | data, | |
int | len | |||
) | [static] |
Definition at line 1405 of file frame.c.
References ast_log(), get_n_bits_at(), LOG_WARNING, and speex_get_wb_sz_at().
Referenced by ast_codec_get_samples().
01406 { 01407 static int SpeexSubModeSz[] = { 01408 5, 43, 119, 160, 01409 220, 300, 364, 492, 01410 79, 0, 0, 0, 01411 0, 0, 0, 0 }; 01412 static int SpeexInBandSz[] = { 01413 1, 1, 4, 4, 01414 4, 4, 4, 4, 01415 8, 8, 16, 16, 01416 32, 32, 64, 64 }; 01417 int bit = 0; 01418 int cnt = 0; 01419 int off; 01420 unsigned char c; 01421 01422 while ((len * 8 - bit) >= 5) { 01423 /* skip wideband frames */ 01424 off = speex_get_wb_sz_at(data, len, bit); 01425 if (off < 0) { 01426 ast_log(LOG_WARNING, "Had error while reading wideband frames for speex samples\n"); 01427 break; 01428 } 01429 bit += off; 01430 01431 if ((len * 8 - bit) < 5) { 01432 ast_log(LOG_WARNING, "Not enough bits remaining after wide band for speex samples.\n"); 01433 break; 01434 } 01435 01436 /* get control bits */ 01437 c = get_n_bits_at(data, 5, bit); 01438 bit += 5; 01439 01440 if (c == 15) { 01441 /* terminator */ 01442 break; 01443 } else if (c == 14) { 01444 /* in-band signal; next 4 bits contain signal id */ 01445 c = get_n_bits_at(data, 4, bit); 01446 bit += 4; 01447 bit += SpeexInBandSz[c]; 01448 } else if (c == 13) { 01449 /* user in-band; next 5 bits contain msg len */ 01450 c = get_n_bits_at(data, 5, bit); 01451 bit += 5; 01452 bit += c * 8; 01453 } else if (c > 8) { 01454 /* unknown */ 01455 break; 01456 } else { 01457 /* skip number bits for submode (less the 5 control bits) */ 01458 bit += SpeexSubModeSz[c] - 5; 01459 cnt += 160; /* new frame */ 01460 } 01461 } 01462 return cnt; 01463 }
struct ast_format_list AST_FORMAT_LIST[] [static] |
struct ast_frame ast_null_frame = { AST_FRAME_NULL, } |
Queueing a null frame is fairly common, so we declare a global null frame object for this purpose instead of having to declare one on the stack
Definition at line 137 of file frame.c.
Referenced by __ast_read(), __oh323_rtp_create(), __oh323_update_info(), agent_new(), agent_read(), ast_channel_masquerade(), ast_channel_setwhentohangup(), ast_do_masquerade(), ast_rtcp_read(), ast_rtp_read(), ast_softhangup_nolock(), ast_udptl_read(), conf_run(), features_read(), gtalk_rtp_read(), handle_request_invite(), handle_response_invite(), iax2_read(), local_read(), mgcp_rtp_read(), oh323_read(), oh323_rtp_read(), process_rfc2833(), process_sdp(), send_dtmf(), sip_rtp_read(), skinny_rtp_read(), and wakeup_sub().
struct ast_cli_entry cli_show_audio_codecs [static] |
Initial value:
{ { "show", "audio", "codecs", NULL }, show_codecs_deprecated, NULL, NULL }
struct ast_cli_entry cli_show_codec [static] |
Initial value:
{ { "show", "codec", NULL }, show_codec_n_deprecated, NULL, NULL }
struct ast_cli_entry cli_show_codecs [static] |
Initial value:
{ { "show", "codecs", NULL }, show_codecs_deprecated, NULL, NULL }
struct ast_cli_entry cli_show_image_codecs [static] |
Initial value:
{ { "show", "image", "codecs", NULL }, show_codecs_deprecated, NULL, NULL }
struct ast_cli_entry cli_show_video_codecs [static] |
Initial value:
{ { "show", "video", "codecs", NULL }, show_codecs_deprecated, NULL, NULL }
char frame_show_codec_n_usage[] [static] |
char frame_show_codecs_usage[] [static] |
struct ast_cli_entry my_clis[] [static] |