#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"
#include "asterisk/translate.h"
Include dependency graph for frame.c:
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) |
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. | |
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 a audio codec to a preference list, removing it first if it was already there. | |
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. | |
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_prepend (struct ast_codec_pref *pref, int format, int only_if_existing) |
Prepend an audio codec to a preference list, removing it first if it was already there. | |
void | ast_codec_pref_remove (struct ast_codec_pref *pref, int format) |
Remove audio a codec from a preference 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 Frees a frame. | |
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. | |
ast_frame * | ast_frdup (const struct ast_frame *f) |
Copies a frame. | |
ast_frame * | ast_frisolate (struct ast_frame *fr) |
Makes a frame independent of any static storage. | |
ast_format_list * | ast_get_format_list (size_t *size) |
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) |
ast_smoother * | ast_smoother_new (int size) |
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). | |
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 68 of file frame.c.
Referenced by ast_frame_free().
#define SMOOTHER_SIZE 8000 |
#define TYPE_MASK 0x3 |
enum frame_type |
Definition at line 82 of file frame.c.
00082 { 00083 TYPE_HIGH, /* 0x0 */ 00084 TYPE_LOW, /* 0x1 */ 00085 TYPE_SILENCE, /* 0x2 */ 00086 TYPE_DONTSEND /* 0x3 */ 00087 };
int __ast_smoother_feed | ( | struct ast_smoother * | s, | |
struct ast_frame * | f, | |||
int | swap | |||
) |
Definition at line 172 of file frame.c.
References AST_FRAME_VOICE, ast_log(), AST_MIN_OFFSET, AST_SMOOTHER_FLAG_G729, ast_swapcopy_samples(), f, LOG_NOTICE, LOG_WARNING, s, and SMOOTHER_SIZE.
00173 { 00174 if (f->frametype != AST_FRAME_VOICE) { 00175 ast_log(LOG_WARNING, "Huh? Can't smooth a non-voice frame!\n"); 00176 return -1; 00177 } 00178 if (!s->format) { 00179 s->format = f->subclass; 00180 s->samplesperbyte = (float)f->samples / (float)f->datalen; 00181 } else if (s->format != f->subclass) { 00182 ast_log(LOG_WARNING, "Smoother was working on %d format frames, now trying to feed %d?\n", s->format, f->subclass); 00183 return -1; 00184 } 00185 if (s->len + f->datalen > SMOOTHER_SIZE) { 00186 ast_log(LOG_WARNING, "Out of smoother space\n"); 00187 return -1; 00188 } 00189 if (((f->datalen == s->size) || ((f->datalen < 10) && (s->flags & AST_SMOOTHER_FLAG_G729))) 00190 && !s->opt && (f->offset >= AST_MIN_OFFSET)) { 00191 if (!s->len) { 00192 /* Optimize by sending the frame we just got 00193 on the next read, thus eliminating the douple 00194 copy */ 00195 if (swap) 00196 ast_swapcopy_samples(f->data, f->data, f->samples); 00197 s->opt = f; 00198 return 0; 00199 } 00200 } 00201 if (s->flags & AST_SMOOTHER_FLAG_G729) { 00202 if (s->len % 10) { 00203 ast_log(LOG_NOTICE, "Dropping extra frame of G.729 since we already have a VAD frame at the end\n"); 00204 return 0; 00205 } 00206 } 00207 if (swap) 00208 ast_swapcopy_samples(s->data+s->len, f->data, f->samples); 00209 else 00210 memcpy(s->data + s->len, f->data, f->datalen); 00211 /* If either side is empty, reset the delivery time */ 00212 if (!s->len || ast_tvzero(f->delivery) || ast_tvzero(s->delivery)) /* XXX really ? */ 00213 s->delivery = f->delivery; 00214 s->len += f->datalen; 00215 return 0; 00216 }
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 599 of file frame.c.
References AST_FORMAT_LIST, and desc.
Referenced by moh_alloc(), show_codec_n(), show_codec_n_deprecated(), show_codecs(), and show_codecs_deprecated().
00600 { 00601 int x; 00602 char *ret = "unknown"; 00603 for (x = 0; x < sizeof(AST_FORMAT_LIST) / sizeof(AST_FORMAT_LIST[0]); x++) { 00604 if(AST_FORMAT_LIST[x].visible && AST_FORMAT_LIST[x].bits == codec) { 00605 ret = AST_FORMAT_LIST[x].desc; 00606 break; 00607 } 00608 } 00609 return ret; 00610 }
int ast_codec_choose | ( | struct ast_codec_pref * | pref, | |
int | formats, | |||
int | find_best | |||
) |
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 1271 of file frame.c.
References ast_best_codec(), AST_FORMAT_AUDIO_MASK, AST_FORMAT_LIST, 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().
01272 { 01273 int x, ret = 0, slot; 01274 01275 for (x = 0; x < sizeof(AST_FORMAT_LIST) / sizeof(AST_FORMAT_LIST[0]); x++) { 01276 slot = pref->order[x]; 01277 01278 if (!slot) 01279 break; 01280 if (formats & AST_FORMAT_LIST[slot-1].bits) { 01281 ret = AST_FORMAT_LIST[slot-1].bits; 01282 break; 01283 } 01284 } 01285 if(ret & AST_FORMAT_AUDIO_MASK) 01286 return ret; 01287 01288 if (option_debug > 3) 01289 ast_log(LOG_DEBUG, "Could not find preferred codec - %s\n", find_best ? "Going for the best codec" : "Returning zero codec"); 01290 01291 return find_best ? ast_best_codec(formats) : 0; 01292 }
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 1530 of file frame.c.
References AST_FORMAT_ADPCM, AST_FORMAT_ALAW, AST_FORMAT_G722, 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 moh_generate(), and monmp3thread().
01531 { 01532 int len = 0; 01533 01534 /* XXX Still need speex, g723, and lpc10 XXX */ 01535 switch(format) { 01536 case AST_FORMAT_ILBC: 01537 len = (samples / 240) * 50; 01538 break; 01539 case AST_FORMAT_GSM: 01540 len = (samples / 160) * 33; 01541 break; 01542 case AST_FORMAT_G729A: 01543 len = samples / 8; 01544 break; 01545 case AST_FORMAT_SLINEAR: 01546 len = samples * 2; 01547 break; 01548 case AST_FORMAT_ULAW: 01549 case AST_FORMAT_ALAW: 01550 len = samples; 01551 break; 01552 case AST_FORMAT_G722: 01553 case AST_FORMAT_ADPCM: 01554 case AST_FORMAT_G726: 01555 case AST_FORMAT_G726_AAL2: 01556 len = samples / 2; 01557 break; 01558 default: 01559 ast_log(LOG_WARNING, "Unable to calculate sample length for format %s\n", ast_getformatname(format)); 01560 } 01561 01562 return len; 01563 }
int ast_codec_get_samples | ( | struct ast_frame * | f | ) |
Returns the number of samples contained in the frame.
Definition at line 1487 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(), f, g723_samples(), LOG_WARNING, and speex_samples().
Referenced by ast_rtp_read(), isAnsweringMachine(), moh_generate(), schedule_delivery(), and socket_process().
01488 { 01489 int samples=0; 01490 switch(f->subclass) { 01491 case AST_FORMAT_SPEEX: 01492 samples = speex_samples(f->data, f->datalen); 01493 break; 01494 case AST_FORMAT_G723_1: 01495 samples = g723_samples(f->data, f->datalen); 01496 break; 01497 case AST_FORMAT_ILBC: 01498 samples = 240 * (f->datalen / 50); 01499 break; 01500 case AST_FORMAT_GSM: 01501 samples = 160 * (f->datalen / 33); 01502 break; 01503 case AST_FORMAT_G729A: 01504 samples = f->datalen * 8; 01505 break; 01506 case AST_FORMAT_SLINEAR: 01507 samples = f->datalen / 2; 01508 break; 01509 case AST_FORMAT_LPC10: 01510 /* assumes that the RTP packet contains one LPC10 frame */ 01511 samples = 22 * 8; 01512 samples += (((char *)(f->data))[7] & 0x1) * 8; 01513 break; 01514 case AST_FORMAT_ULAW: 01515 case AST_FORMAT_ALAW: 01516 samples = f->datalen; 01517 break; 01518 case AST_FORMAT_G722: 01519 case AST_FORMAT_ADPCM: 01520 case AST_FORMAT_G726: 01521 case AST_FORMAT_G726_AAL2: 01522 samples = f->datalen * 2; 01523 break; 01524 default: 01525 ast_log(LOG_WARNING, "Unable to calculate samples for format %s\n", ast_getformatname(f->subclass)); 01526 } 01527 return samples; 01528 }
int ast_codec_pref_append | ( | struct ast_codec_pref * | pref, | |
int | format | |||
) |
Append a audio codec to a preference list, removing it first if it was already there.
Definition at line 1130 of file frame.c.
References ast_codec_pref_remove(), AST_FORMAT_LIST, and ast_codec_pref::order.
Referenced by ast_parse_allow_disallow().
01131 { 01132 int x, newindex = 0; 01133 01134 ast_codec_pref_remove(pref, format); 01135 01136 for (x = 0; x < sizeof(AST_FORMAT_LIST) / sizeof(AST_FORMAT_LIST[0]); x++) { 01137 if(AST_FORMAT_LIST[x].bits == format) { 01138 newindex = x + 1; 01139 break; 01140 } 01141 } 01142 01143 if(newindex) { 01144 for (x = 0; x < sizeof(AST_FORMAT_LIST) / sizeof(AST_FORMAT_LIST[0]); x++) { 01145 if(!pref->order[x]) { 01146 pref->order[x] = newindex; 01147 break; 01148 } 01149 } 01150 } 01151 01152 return x; 01153 }
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 1032 of file frame.c.
References ast_codec_pref::order.
Referenced by check_access(), create_addr(), dump_prefs(), and socket_process().
01033 { 01034 int x, differential = (int) 'A', mem; 01035 char *from, *to; 01036 01037 if(right) { 01038 from = pref->order; 01039 to = buf; 01040 mem = size; 01041 } else { 01042 to = pref->order; 01043 from = buf; 01044 mem = 32; 01045 } 01046 01047 memset(to, 0, mem); 01048 for (x = 0; x < 32 ; x++) { 01049 if(!from[x]) 01050 break; 01051 to[x] = right ? (from[x] + differential) : (from[x] - differential); 01052 } 01053 }
struct ast_format_list ast_codec_pref_getsize | ( | struct ast_codec_pref * | pref, | |
int | format | |||
) |
Get packet size for codec.
Definition at line 1232 of file frame.c.
References AST_FORMAT_LIST, ast_format_list::bits, fmt, and format.
Referenced by add_codec_to_sdp(), ast_rtp_bridge(), ast_rtp_write(), handle_open_receive_channel_ack_message(), and transmit_connect().
01233 { 01234 int x, index = -1, framems = 0; 01235 struct ast_format_list fmt = {0}; 01236 01237 for (x = 0; x < sizeof(AST_FORMAT_LIST) / sizeof(AST_FORMAT_LIST[0]); x++) { 01238 if(AST_FORMAT_LIST[x].bits == format) { 01239 fmt = AST_FORMAT_LIST[x]; 01240 index = x; 01241 break; 01242 } 01243 } 01244 01245 for (x = 0; x < sizeof(AST_FORMAT_LIST) / sizeof(AST_FORMAT_LIST[0]); x++) { 01246 if(pref->order[x] == (index + 1)) { 01247 framems = pref->framing[x]; 01248 break; 01249 } 01250 } 01251 01252 /* size validation */ 01253 if(!framems) 01254 framems = AST_FORMAT_LIST[index].def_ms; 01255 01256 if(AST_FORMAT_LIST[index].inc_ms && framems % AST_FORMAT_LIST[index].inc_ms) /* avoid division by zero */ 01257 framems -= framems % AST_FORMAT_LIST[index].inc_ms; 01258 01259 if(framems < AST_FORMAT_LIST[index].min_ms) 01260 framems = AST_FORMAT_LIST[index].min_ms; 01261 01262 if(framems > AST_FORMAT_LIST[index].max_ms) 01263 framems = AST_FORMAT_LIST[index].max_ms; 01264 01265 fmt.cur_ms = framems; 01266 01267 return fmt; 01268 }
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 1090 of file frame.c.
References AST_FORMAT_LIST, 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().
01091 { 01092 int slot = 0; 01093 01094 01095 if((index >= 0) && (index < sizeof(pref->order))) { 01096 slot = pref->order[index]; 01097 } 01098 01099 return slot ? AST_FORMAT_LIST[slot-1].bits : 0; 01100 }
void ast_codec_pref_prepend | ( | struct ast_codec_pref * | pref, | |
int | format, | |||
int | only_if_existing | |||
) |
Prepend an audio codec to a preference list, removing it first if it was already there.
Definition at line 1156 of file frame.c.
References ARRAY_LEN, AST_FORMAT_LIST, ast_codec_pref::framing, and ast_codec_pref::order.
Referenced by create_addr().
01157 { 01158 int x, newindex = 0; 01159 01160 /* First step is to get the codecs "index number" */ 01161 for (x = 0; x < ARRAY_LEN(AST_FORMAT_LIST); x++) { 01162 if (AST_FORMAT_LIST[x].bits == format) { 01163 newindex = x + 1; 01164 break; 01165 } 01166 } 01167 /* Done if its unknown */ 01168 if (!newindex) 01169 return; 01170 01171 /* Now find any existing occurrence, or the end */ 01172 for (x = 0; x < 32; x++) { 01173 if (!pref->order[x] || pref->order[x] == newindex) 01174 break; 01175 } 01176 01177 if (only_if_existing && !pref->order[x]) 01178 return; 01179 01180 /* Move down to make space to insert - either all the way to the end, 01181 or as far as the existing location (which will be overwritten) */ 01182 for (; x > 0; x--) { 01183 pref->order[x] = pref->order[x - 1]; 01184 pref->framing[x] = pref->framing[x - 1]; 01185 } 01186 01187 /* And insert the new entry */ 01188 pref->order[0] = newindex; 01189 pref->framing[0] = 0; /* ? */ 01190 }
void ast_codec_pref_remove | ( | struct ast_codec_pref * | pref, | |
int | format | |||
) |
Remove audio a codec from a preference list.
Definition at line 1103 of file frame.c.
References AST_FORMAT_LIST, and ast_codec_pref::order.
Referenced by ast_codec_pref_append(), and ast_parse_allow_disallow().
01104 { 01105 struct ast_codec_pref oldorder; 01106 int x, y = 0; 01107 int slot; 01108 int size; 01109 01110 if(!pref->order[0]) 01111 return; 01112 01113 memcpy(&oldorder, pref, sizeof(oldorder)); 01114 memset(pref, 0, sizeof(*pref)); 01115 01116 for (x = 0; x < sizeof(AST_FORMAT_LIST) / sizeof(AST_FORMAT_LIST[0]); x++) { 01117 slot = oldorder.order[x]; 01118 size = oldorder.framing[x]; 01119 if(! slot) 01120 break; 01121 if(AST_FORMAT_LIST[slot-1].bits != format) { 01122 pref->order[y] = slot; 01123 pref->framing[y++] = size; 01124 } 01125 } 01126 01127 }
int ast_codec_pref_setsize | ( | struct ast_codec_pref * | pref, | |
int | format, | |||
int | framems | |||
) |
Set packet size for codec.
Definition at line 1193 of file frame.c.
References AST_FORMAT_LIST, ast_codec_pref::framing, and ast_codec_pref::order.
Referenced by ast_parse_allow_disallow(), and process_sdp().
01194 { 01195 int x, index = -1; 01196 01197 for (x = 0; x < sizeof(AST_FORMAT_LIST) / sizeof(AST_FORMAT_LIST[0]); x++) { 01198 if(AST_FORMAT_LIST[x].bits == format) { 01199 index = x; 01200 break; 01201 } 01202 } 01203 01204 if(index < 0) 01205 return -1; 01206 01207 /* size validation */ 01208 if(!framems) 01209 framems = AST_FORMAT_LIST[index].def_ms; 01210 01211 if(AST_FORMAT_LIST[index].inc_ms && framems % AST_FORMAT_LIST[index].inc_ms) /* avoid division by zero */ 01212 framems -= framems % AST_FORMAT_LIST[index].inc_ms; 01213 01214 if(framems < AST_FORMAT_LIST[index].min_ms) 01215 framems = AST_FORMAT_LIST[index].min_ms; 01216 01217 if(framems > AST_FORMAT_LIST[index].max_ms) 01218 framems = AST_FORMAT_LIST[index].max_ms; 01219 01220 01221 for (x = 0; x < sizeof(AST_FORMAT_LIST) / sizeof(AST_FORMAT_LIST[0]); x++) { 01222 if(pref->order[x] == (index + 1)) { 01223 pref->framing[x] = framems; 01224 break; 01225 } 01226 } 01227 01228 return x; 01229 }
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 1055 of file frame.c.
References ast_codec_pref_index(), and ast_getformatname().
Referenced by dump_prefs(), and socket_process().
01056 { 01057 int x, codec; 01058 size_t total_len, slen; 01059 char *formatname; 01060 01061 memset(buf,0,size); 01062 total_len = size; 01063 buf[0] = '('; 01064 total_len--; 01065 for(x = 0; x < 32 ; x++) { 01066 if(total_len <= 0) 01067 break; 01068 if(!(codec = ast_codec_pref_index(pref,x))) 01069 break; 01070 if((formatname = ast_getformatname(codec))) { 01071 slen = strlen(formatname); 01072 if(slen > total_len) 01073 break; 01074 strncat(buf, formatname, total_len - 1); /* safe */ 01075 total_len -= slen; 01076 } 01077 if(total_len && x < 31 && ast_codec_pref_index(pref , x + 1)) { 01078 strncat(buf, "|", total_len - 1); /* safe */ 01079 total_len--; 01080 } 01081 } 01082 if(total_len) { 01083 strncat(buf, ")", total_len - 1); /* safe */ 01084 total_len--; 01085 } 01086 01087 return size - total_len; 01088 }
static const char* ast_expand_codec_alias | ( | const char * | in | ) | [static] |
Definition at line 570 of file frame.c.
Referenced by ast_getformatbyname().
00571 { 00572 int x; 00573 00574 for (x = 0; x < sizeof(ast_codec_alias_table) / sizeof(ast_codec_alias_table[0]); x++) { 00575 if(!strcmp(in,ast_codec_alias_table[x].alias)) 00576 return ast_codec_alias_table[x].realname; 00577 } 00578 return in; 00579 }
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 1565 of file frame.c.
References AST_FORMAT_SLINEAR, AST_FRAME_VOICE, ast_slinear_saturated_divide(), ast_slinear_saturated_multiply(), and f.
Referenced by audiohook_read_frame_single(), and conf_run().
01566 { 01567 int count; 01568 short *fdata = f->data; 01569 short adjust_value = abs(adjustment); 01570 01571 if ((f->frametype != AST_FRAME_VOICE) || (f->subclass != AST_FORMAT_SLINEAR)) 01572 return -1; 01573 01574 if (!adjustment) 01575 return 0; 01576 01577 for (count = 0; count < f->samples; count++) { 01578 if (adjustment > 0) { 01579 ast_slinear_saturated_multiply(&fdata[count], &adjust_value); 01580 } else if (adjustment < 0) { 01581 ast_slinear_saturated_divide(&fdata[count], &adjust_value); 01582 } 01583 } 01584 01585 return 0; 01586 }
void ast_frame_dump | ( | const char * | name, | |
struct ast_frame * | f, | |||
char * | prefix | |||
) |
Dump a frame for debugging purposes
Definition at line 753 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_log(), AST_MODEM_T38, AST_MODEM_V150, ast_strlen_zero(), f, and LOG_DEBUG.
Referenced by __ast_read(), ast_write(), and sip_write().
00754 { 00755 const char noname[] = "unknown"; 00756 char ftype[40] = "Unknown Frametype"; 00757 char subclass[40] = "Unknown Subclass"; 00758 char moreinfo[40] = ""; 00759 00760 if (!name) 00761 name = noname; 00762 00763 if (!f) { 00764 ast_log( LOG_DEBUG, "%s [ %s (NULL) ] [%s]\n", 00765 prefix, "HANGUP", name); 00766 return; 00767 } 00768 /* XXX We should probably print one each of voice and video when the format changes XXX */ 00769 if (f->frametype == AST_FRAME_VOICE) 00770 return; 00771 if (f->frametype == AST_FRAME_VIDEO) 00772 return; 00773 switch(f->frametype) { 00774 case AST_FRAME_DTMF_BEGIN: 00775 strcpy(ftype, "DTMF Begin"); 00776 subclass[0] = f->subclass; 00777 subclass[1] = '\0'; 00778 break; 00779 case AST_FRAME_DTMF_END: 00780 strcpy(ftype, "DTMF End"); 00781 subclass[0] = f->subclass; 00782 subclass[1] = '\0'; 00783 break; 00784 case AST_FRAME_CONTROL: 00785 strcpy(ftype, "Control"); 00786 switch(f->subclass) { 00787 case AST_CONTROL_HANGUP: 00788 strcpy(subclass, "Hangup"); 00789 break; 00790 case AST_CONTROL_RING: 00791 strcpy(subclass, "Ring"); 00792 break; 00793 case AST_CONTROL_RINGING: 00794 strcpy(subclass, "Ringing"); 00795 break; 00796 case AST_CONTROL_ANSWER: 00797 strcpy(subclass, "Answer"); 00798 break; 00799 case AST_CONTROL_BUSY: 00800 strcpy(subclass, "Busy"); 00801 break; 00802 case AST_CONTROL_TAKEOFFHOOK: 00803 strcpy(subclass, "Take Off Hook"); 00804 break; 00805 case AST_CONTROL_OFFHOOK: 00806 strcpy(subclass, "Line Off Hook"); 00807 break; 00808 case AST_CONTROL_CONGESTION: 00809 strcpy(subclass, "Congestion"); 00810 break; 00811 case AST_CONTROL_FLASH: 00812 strcpy(subclass, "Flash"); 00813 break; 00814 case AST_CONTROL_WINK: 00815 strcpy(subclass, "Wink"); 00816 break; 00817 case AST_CONTROL_OPTION: 00818 strcpy(subclass, "Option"); 00819 break; 00820 case AST_CONTROL_RADIO_KEY: 00821 strcpy(subclass, "Key Radio"); 00822 break; 00823 case AST_CONTROL_RADIO_UNKEY: 00824 strcpy(subclass, "Unkey Radio"); 00825 break; 00826 case -1: 00827 strcpy(subclass, "Stop generators"); 00828 break; 00829 default: 00830 snprintf(subclass, sizeof(subclass), "Unknown control '%d'", f->subclass); 00831 } 00832 break; 00833 case AST_FRAME_NULL: 00834 strcpy(ftype, "Null Frame"); 00835 strcpy(subclass, "N/A"); 00836 break; 00837 case AST_FRAME_IAX: 00838 /* Should never happen */ 00839 strcpy(ftype, "IAX Specific"); 00840 snprintf(subclass, sizeof(subclass), "IAX Frametype %d", f->subclass); 00841 break; 00842 case AST_FRAME_TEXT: 00843 strcpy(ftype, "Text"); 00844 strcpy(subclass, "N/A"); 00845 ast_copy_string(moreinfo, f->data, sizeof(moreinfo)); 00846 break; 00847 case AST_FRAME_IMAGE: 00848 strcpy(ftype, "Image"); 00849 snprintf(subclass, sizeof(subclass), "Image format %s\n", ast_getformatname(f->subclass)); 00850 break; 00851 case AST_FRAME_HTML: 00852 strcpy(ftype, "HTML"); 00853 switch(f->subclass) { 00854 case AST_HTML_URL: 00855 strcpy(subclass, "URL"); 00856 ast_copy_string(moreinfo, f->data, sizeof(moreinfo)); 00857 break; 00858 case AST_HTML_DATA: 00859 strcpy(subclass, "Data"); 00860 break; 00861 case AST_HTML_BEGIN: 00862 strcpy(subclass, "Begin"); 00863 break; 00864 case AST_HTML_END: 00865 strcpy(subclass, "End"); 00866 break; 00867 case AST_HTML_LDCOMPLETE: 00868 strcpy(subclass, "Load Complete"); 00869 break; 00870 case AST_HTML_NOSUPPORT: 00871 strcpy(subclass, "No Support"); 00872 break; 00873 case AST_HTML_LINKURL: 00874 strcpy(subclass, "Link URL"); 00875 ast_copy_string(moreinfo, f->data, sizeof(moreinfo)); 00876 break; 00877 case AST_HTML_UNLINK: 00878 strcpy(subclass, "Unlink"); 00879 break; 00880 case AST_HTML_LINKREJECT: 00881 strcpy(subclass, "Link Reject"); 00882 break; 00883 default: 00884 snprintf(subclass, sizeof(subclass), "Unknown HTML frame '%d'\n", f->subclass); 00885 break; 00886 } 00887 break; 00888 case AST_FRAME_MODEM: 00889 strcpy(ftype, "Modem"); 00890 switch (f->subclass) { 00891 case AST_MODEM_T38: 00892 strcpy(subclass, "T.38"); 00893 break; 00894 case AST_MODEM_V150: 00895 strcpy(subclass, "V.150"); 00896 break; 00897 default: 00898 snprintf(subclass, sizeof(subclass), "Unknown MODEM frame '%d'\n", f->subclass); 00899 break; 00900 } 00901 break; 00902 default: 00903 snprintf(ftype, sizeof(ftype), "Unknown Frametype '%d'", f->frametype); 00904 } 00905 if (!ast_strlen_zero(moreinfo)) 00906 ast_log( LOG_DEBUG, "%s [ TYPE: %s (%d) SUBCLASS: %s (%d) '%s' ] [%s]\n", 00907 prefix, 00908 ftype, 00909 f->frametype, 00910 subclass, 00911 f->subclass, 00912 moreinfo, 00913 name); 00914 else 00915 ast_log( LOG_DEBUG, "%s [ TYPE: %s (%d) SUBCLASS: %s (%d) ] [%s]\n", 00916 prefix, 00917 ftype, 00918 f->frametype, 00919 subclass, 00920 f->subclass, 00921 name); 00922 }
void ast_frame_free | ( | struct ast_frame * | fr, | |
int | cache | |||
) |
Requests a frame to be allocated Frees a frame.
fr | Frame to free | |
cache | Whether to consider this frame for frame caching |
Definition at line 321 of file frame.c.
References AST_FRFLAG_FROM_TRANSLATOR, AST_LIST_INSERT_HEAD, AST_LIST_LOCK, AST_LIST_REMOVE, AST_LIST_UNLOCK, AST_MALLOCD_DATA, AST_MALLOCD_HDR, AST_MALLOCD_SRC, ast_test_flag, ast_translate_frame_freed(), FRAME_CACHE_MAX_SIZE, frames, and free.
Referenced by mixmonitor_thread().
00322 { 00323 if( !fr ) 00324 return; 00325 if (ast_test_flag(fr, AST_FRFLAG_FROM_TRANSLATOR)) 00326 ast_translate_frame_freed(fr); 00327 00328 if (!fr->mallocd) 00329 return; 00330 00331 #if !defined(LOW_MEMORY) 00332 if (cache && fr->mallocd == AST_MALLOCD_HDR) { 00333 /* Cool, only the header is malloc'd, let's just cache those for now 00334 * to keep things simple... */ 00335 struct ast_frame_cache *frames; 00336 00337 if ((frames = ast_threadstorage_get(&frame_cache, sizeof(*frames))) 00338 && frames->size < FRAME_CACHE_MAX_SIZE) { 00339 AST_LIST_INSERT_HEAD(&frames->list, fr, frame_list); 00340 frames->size++; 00341 return; 00342 } 00343 } 00344 #endif 00345 00346 if (fr->mallocd & AST_MALLOCD_DATA) { 00347 if (fr->data) 00348 free(fr->data - fr->offset); 00349 } 00350 if (fr->mallocd & AST_MALLOCD_SRC) { 00351 if (fr->src) 00352 free((char *)fr->src); 00353 } 00354 if (fr->mallocd & AST_MALLOCD_HDR) { 00355 #ifdef TRACE_FRAMES 00356 AST_LIST_LOCK(&headerlist); 00357 headers--; 00358 AST_LIST_REMOVE(&headerlist, fr, frame_list); 00359 AST_LIST_UNLOCK(&headerlist); 00360 #endif 00361 free(fr); 00362 } 00363 }
static struct ast_frame* ast_frame_header_new | ( | void | ) | [static] |
Definition at line 273 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, and frames.
Referenced by ast_frisolate().
00274 { 00275 struct ast_frame *f; 00276 00277 #if !defined(LOW_MEMORY) 00278 struct ast_frame_cache *frames; 00279 00280 if ((frames = ast_threadstorage_get(&frame_cache, sizeof(*frames)))) { 00281 if ((f = AST_LIST_REMOVE_HEAD(&frames->list, frame_list))) { 00282 size_t mallocd_len = f->mallocd_hdr_len; 00283 memset(f, 0, sizeof(*f)); 00284 f->mallocd_hdr_len = mallocd_len; 00285 f->mallocd = AST_MALLOCD_HDR; 00286 frames->size--; 00287 return f; 00288 } 00289 } 00290 if (!(f = ast_calloc_cache(1, sizeof(*f)))) 00291 return NULL; 00292 #else 00293 if (!(f = ast_calloc(1, sizeof(*f)))) 00294 return NULL; 00295 #endif 00296 00297 f->mallocd_hdr_len = sizeof(*f); 00298 #ifdef TRACE_FRAMES 00299 AST_LIST_LOCK(&headerlist); 00300 headers++; 00301 AST_LIST_INSERT_HEAD(&headerlist, f, frame_list); 00302 AST_LIST_UNLOCK(&headerlist); 00303 #endif 00304 00305 return f; 00306 }
Sums two frames of audio samples.
f1 | The first frame (which will contain the result) | |
f2 | The second frame |
Definition at line 1588 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.
01589 { 01590 int count; 01591 short *data1, *data2; 01592 01593 if ((f1->frametype != AST_FRAME_VOICE) || (f1->subclass != AST_FORMAT_SLINEAR)) 01594 return -1; 01595 01596 if ((f2->frametype != AST_FRAME_VOICE) || (f2->subclass != AST_FORMAT_SLINEAR)) 01597 return -1; 01598 01599 if (f1->samples != f2->samples) 01600 return -1; 01601 01602 for (count = 0, data1 = f1->data, data2 = f2->data; 01603 count < f1->samples; 01604 count++, data1++, data2++) 01605 ast_slinear_saturated_add(data1, data2); 01606 01607 return 0; 01608 }
Copies a frame.
fr | frame to copy Duplicates a frame -- should only rarely be used, typically frisolate is good enough |
Definition at line 428 of file frame.c.
References ast_calloc_cache, ast_copy_flags, AST_FRFLAG_HAS_TIMING_INFO, 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, f, frames, ast_frame::frametype, len, ast_frame::len, ast_frame::mallocd, ast_frame::mallocd_hdr_len, ast_frame::offset, ast_frame::samples, ast_frame::seqno, ast_frame::src, ast_frame::subclass, and ast_frame::ts.
Referenced by ast_jb_put(), ast_queue_frame(), ast_rtp_write(), ast_slinfactory_feed(), audiohook_read_frame_single(), defer_frame(), recordthread(), and rpt().
00429 { 00430 struct ast_frame *out = NULL; 00431 int len, srclen = 0; 00432 void *buf = NULL; 00433 00434 #if !defined(LOW_MEMORY) 00435 struct ast_frame_cache *frames; 00436 #endif 00437 00438 /* Start with standard stuff */ 00439 len = sizeof(*out) + AST_FRIENDLY_OFFSET + f->datalen; 00440 /* If we have a source, add space for it */ 00441 /* 00442 * XXX Watch out here - if we receive a src which is not terminated 00443 * properly, we can be easily attacked. Should limit the size we deal with. 00444 */ 00445 if (f->src) 00446 srclen = strlen(f->src); 00447 if (srclen > 0) 00448 len += srclen + 1; 00449 00450 #if !defined(LOW_MEMORY) 00451 if ((frames = ast_threadstorage_get(&frame_cache, sizeof(*frames)))) { 00452 AST_LIST_TRAVERSE_SAFE_BEGIN(&frames->list, out, frame_list) { 00453 if (out->mallocd_hdr_len >= len) { 00454 size_t mallocd_len = out->mallocd_hdr_len; 00455 AST_LIST_REMOVE_CURRENT(&frames->list, frame_list); 00456 memset(out, 0, sizeof(*out)); 00457 out->mallocd_hdr_len = mallocd_len; 00458 buf = out; 00459 frames->size--; 00460 break; 00461 } 00462 } 00463 AST_LIST_TRAVERSE_SAFE_END 00464 } 00465 #endif 00466 00467 if (!buf) { 00468 if (!(buf = ast_calloc_cache(1, len))) 00469 return NULL; 00470 out = buf; 00471 out->mallocd_hdr_len = len; 00472 } 00473 00474 out->frametype = f->frametype; 00475 out->subclass = f->subclass; 00476 out->datalen = f->datalen; 00477 out->samples = f->samples; 00478 out->delivery = f->delivery; 00479 /* Set us as having malloc'd header only, so it will eventually 00480 get freed. */ 00481 out->mallocd = AST_MALLOCD_HDR; 00482 out->offset = AST_FRIENDLY_OFFSET; 00483 if (out->datalen) { 00484 out->data = buf + sizeof(*out) + AST_FRIENDLY_OFFSET; 00485 memcpy(out->data, f->data, out->datalen); 00486 } 00487 if (srclen > 0) { 00488 out->src = buf + sizeof(*out) + AST_FRIENDLY_OFFSET + f->datalen; 00489 /* Must have space since we allocated for it */ 00490 strcpy((char *)out->src, f->src); 00491 } 00492 ast_copy_flags(out, f, AST_FRFLAG_HAS_TIMING_INFO); 00493 out->ts = f->ts; 00494 out->len = f->len; 00495 out->seqno = f->seqno; 00496 return out; 00497 }
Makes a frame independent of any static storage.
fr | frame to act upon Take a frame, and if it's not been malloc'd, make a malloc'd copy and if the data hasn't been malloced then make the data malloc'd. If you need to store frames, say for queueing, then you should call this function. |
Definition at line 370 of file frame.c.
References ast_clear_flag, ast_copy_flags, ast_frame_header_new(), AST_FRFLAG_FROM_TRANSLATOR, AST_FRFLAG_HAS_TIMING_INFO, AST_FRIENDLY_OFFSET, ast_malloc, AST_MALLOCD_DATA, AST_MALLOCD_HDR, AST_MALLOCD_SRC, ast_strdup, ast_test_flag, ast_frame::data, ast_frame::datalen, ast_frame::frametype, free, 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().
00371 { 00372 struct ast_frame *out; 00373 void *newdata; 00374 00375 ast_clear_flag(fr, AST_FRFLAG_FROM_TRANSLATOR); 00376 00377 if (!(fr->mallocd & AST_MALLOCD_HDR)) { 00378 /* Allocate a new header if needed */ 00379 if (!(out = ast_frame_header_new())) 00380 return NULL; 00381 out->frametype = fr->frametype; 00382 out->subclass = fr->subclass; 00383 out->datalen = fr->datalen; 00384 out->samples = fr->samples; 00385 out->offset = fr->offset; 00386 out->data = fr->data; 00387 /* Copy the timing data */ 00388 ast_copy_flags(out, fr, AST_FRFLAG_HAS_TIMING_INFO); 00389 if (ast_test_flag(fr, AST_FRFLAG_HAS_TIMING_INFO)) { 00390 out->ts = fr->ts; 00391 out->len = fr->len; 00392 out->seqno = fr->seqno; 00393 } 00394 } else 00395 out = fr; 00396 00397 if (!(fr->mallocd & AST_MALLOCD_SRC)) { 00398 if (fr->src) { 00399 if (!(out->src = ast_strdup(fr->src))) { 00400 if (out != fr) 00401 free(out); 00402 return NULL; 00403 } 00404 } 00405 } else 00406 out->src = fr->src; 00407 00408 if (!(fr->mallocd & AST_MALLOCD_DATA)) { 00409 if (!(newdata = ast_malloc(fr->datalen + AST_FRIENDLY_OFFSET))) { 00410 if (out->src != fr->src) 00411 free((void *) out->src); 00412 if (out != fr) 00413 free(out); 00414 return NULL; 00415 } 00416 newdata += AST_FRIENDLY_OFFSET; 00417 out->offset = AST_FRIENDLY_OFFSET; 00418 out->datalen = fr->datalen; 00419 memcpy(newdata, fr->data, fr->datalen); 00420 out->data = newdata; 00421 } 00422 00423 out->mallocd = AST_MALLOCD_HDR | AST_MALLOCD_SRC | AST_MALLOCD_DATA; 00424 00425 return out; 00426 }
struct ast_format_list* ast_get_format_list | ( | size_t * | size | ) |
Definition at line 515 of file frame.c.
References AST_FORMAT_LIST.
00516 { 00517 *size = (sizeof(AST_FORMAT_LIST) / sizeof(AST_FORMAT_LIST[0])); 00518 return AST_FORMAT_LIST; 00519 }
struct ast_format_list* ast_get_format_list_index | ( | int | index | ) |
Definition at line 510 of file frame.c.
References AST_FORMAT_LIST.
00511 { 00512 return &AST_FORMAT_LIST[index]; 00513 }
int ast_getformatbyname | ( | const char * | name | ) |
Gets a format from a name.
name | string of format |
Definition at line 581 of file frame.c.
References ast_expand_codec_alias(), AST_FORMAT_LIST, and format.
Referenced by ast_parse_allow_disallow(), iax_template_parse(), load_moh_classes(), reload_config(), and try_suggested_sip_codec().
00582 { 00583 int x, all, format = 0; 00584 00585 all = strcasecmp(name, "all") ? 0 : 1; 00586 for (x = 0; x < sizeof(AST_FORMAT_LIST) / sizeof(AST_FORMAT_LIST[0]); x++) { 00587 if(AST_FORMAT_LIST[x].visible && (all || 00588 !strcasecmp(AST_FORMAT_LIST[x].name,name) || 00589 !strcasecmp(AST_FORMAT_LIST[x].name,ast_expand_codec_alias(name)))) { 00590 format |= AST_FORMAT_LIST[x].bits; 00591 if(!all) 00592 break; 00593 } 00594 } 00595 00596 return format; 00597 }
char* ast_getformatname | ( | int | format | ) |
Get the name of a format.
format | id of format |
Definition at line 521 of file frame.c.
References AST_FORMAT_LIST, ast_format_list::bits, 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_getformatname(), 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(), nv_background_detect_exec(), nv_detectfax_exec(), oh323_rtp_read(), phone_setup(), print_codec_to_cli(), 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(), and zt_read().
00522 { 00523 int x; 00524 char *ret = "unknown"; 00525 for (x = 0; x < sizeof(AST_FORMAT_LIST) / sizeof(AST_FORMAT_LIST[0]); x++) { 00526 if(AST_FORMAT_LIST[x].visible && AST_FORMAT_LIST[x].bits == format) { 00527 ret = AST_FORMAT_LIST[x].name; 00528 break; 00529 } 00530 } 00531 return ret; 00532 }
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 534 of file frame.c.
References AST_FORMAT_LIST, ast_format_list::bits, len, name, and ast_format_list::visible.
Referenced by __sip_show_channels(), _sip_show_peer(), add_sdp(), ast_channel_getformatname_multiple(), ast_streamfile(), function_iaxpeer(), function_sippeer(), handle_showchan(), handle_showchan_deprecated(), iax2_show_peer(), process_sdp(), serialize_showchan(), sip_new(), sip_request_call(), sip_show_channel(), sip_show_settings(), and sip_write().
00535 { 00536 int x; 00537 unsigned len; 00538 char *start, *end = buf; 00539 00540 if (!size) 00541 return buf; 00542 snprintf(end, size, "0x%x (", format); 00543 len = strlen(end); 00544 end += len; 00545 size -= len; 00546 start = end; 00547 for (x = 0; x < sizeof(AST_FORMAT_LIST) / sizeof(AST_FORMAT_LIST[0]); x++) { 00548 if (AST_FORMAT_LIST[x].visible && (AST_FORMAT_LIST[x].bits & format)) { 00549 snprintf(end, size,"%s|",AST_FORMAT_LIST[x].name); 00550 len = strlen(end); 00551 end += len; 00552 size -= len; 00553 } 00554 } 00555 if (start == end) 00556 snprintf(start, size, "nothing)"); 00557 else if (size > 1) 00558 *(end -1) = ')'; 00559 return buf; 00560 }
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 1294 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().
01295 { 01296 char *parse = NULL, *this = NULL, *psize = NULL; 01297 int format = 0, framems = 0; 01298 01299 parse = ast_strdupa(list); 01300 while ((this = strsep(&parse, ","))) { 01301 framems = 0; 01302 if ((psize = strrchr(this, ':'))) { 01303 *psize++ = '\0'; 01304 if (option_debug) 01305 ast_log(LOG_DEBUG,"Packetization for codec: %s is %s\n", this, psize); 01306 framems = atoi(psize); 01307 if (framems < 0) 01308 framems = 0; 01309 } 01310 if (!(format = ast_getformatbyname(this))) { 01311 ast_log(LOG_WARNING, "Cannot %s unknown format '%s'\n", allowing ? "allow" : "disallow", this); 01312 continue; 01313 } 01314 01315 if (mask) { 01316 if (allowing) 01317 *mask |= format; 01318 else 01319 *mask &= ~format; 01320 } 01321 01322 /* Set up a preference list for audio. Do not include video in preferences 01323 since we can not transcode video and have to use whatever is offered 01324 */ 01325 if (pref && (format & AST_FORMAT_AUDIO_MASK)) { 01326 if (strcasecmp(this, "all")) { 01327 if (allowing) { 01328 ast_codec_pref_append(pref, format); 01329 ast_codec_pref_setsize(pref, format, framems); 01330 } 01331 else 01332 ast_codec_pref_remove(pref, format); 01333 } else if (!allowing) { 01334 memset(pref, 0, sizeof(*pref)); 01335 } 01336 } 01337 } 01338 }
void ast_smoother_free | ( | struct ast_smoother * | s | ) |
Definition at line 268 of file frame.c.
Referenced by ast_rtp_codec_setpref(), ast_rtp_destroy(), and ast_rtp_write().
int ast_smoother_get_flags | ( | struct ast_smoother * | s | ) |
struct ast_smoother* ast_smoother_new | ( | int | size | ) |
Definition at line 147 of file frame.c.
References ast_malloc, ast_smoother_reset(), and s.
Referenced by ast_rtp_write().
00148 { 00149 struct ast_smoother *s; 00150 if (size < 1) 00151 return NULL; 00152 if ((s = ast_malloc(sizeof(*s)))) 00153 ast_smoother_reset(s, size); 00154 return s; 00155 }
struct ast_frame* ast_smoother_read | ( | struct ast_smoother * | s | ) |
Definition at line 218 of file frame.c.
References AST_FRAME_VOICE, AST_FRIENDLY_OFFSET, ast_log(), AST_SMOOTHER_FLAG_G729, ast_tvadd(), len, LOG_WARNING, and s.
Referenced by ast_rtp_write().
00219 { 00220 struct ast_frame *opt; 00221 int len; 00222 00223 /* IF we have an optimization frame, send it */ 00224 if (s->opt) { 00225 if (s->opt->offset < AST_FRIENDLY_OFFSET) 00226 ast_log(LOG_WARNING, "Returning a frame of inappropriate offset (%d).\n", 00227 s->opt->offset); 00228 opt = s->opt; 00229 s->opt = NULL; 00230 return opt; 00231 } 00232 00233 /* Make sure we have enough data */ 00234 if (s->len < s->size) { 00235 /* Or, if this is a G.729 frame with VAD on it, send it immediately anyway */ 00236 if (!((s->flags & AST_SMOOTHER_FLAG_G729) && (s->size % 10))) 00237 return NULL; 00238 } 00239 len = s->size; 00240 if (len > s->len) 00241 len = s->len; 00242 /* Make frame */ 00243 s->f.frametype = AST_FRAME_VOICE; 00244 s->f.subclass = s->format; 00245 s->f.data = s->framedata + AST_FRIENDLY_OFFSET; 00246 s->f.offset = AST_FRIENDLY_OFFSET; 00247 s->f.datalen = len; 00248 /* Samples will be improper given VAD, but with VAD the concept really doesn't even exist */ 00249 s->f.samples = len * s->samplesperbyte; /* XXX rounding */ 00250 s->f.delivery = s->delivery; 00251 /* Fill Data */ 00252 memcpy(s->f.data, s->data, len); 00253 s->len -= len; 00254 /* Move remaining data to the front if applicable */ 00255 if (s->len) { 00256 /* In principle this should all be fine because if we are sending 00257 G.729 VAD, the next timestamp will take over anyawy */ 00258 memmove(s->data, s->data + len, s->len); 00259 if (!ast_tvzero(s->delivery)) { 00260 /* If we have delivery time, increment it, otherwise, leave it at 0 */ 00261 s->delivery = ast_tvadd(s->delivery, ast_samp2tv(s->f.samples, 8000)); 00262 } 00263 } 00264 /* Return frame */ 00265 return &s->f; 00266 }
void ast_smoother_reset | ( | struct ast_smoother * | s, | |
int | size | |||
) |
Definition at line 141 of file frame.c.
References s.
Referenced by ast_smoother_new().
00142 { 00143 memset(s, 0, sizeof(*s)); 00144 s->size = size; 00145 }
void ast_smoother_set_flags | ( | struct ast_smoother * | s, | |
int | flags | |||
) |
int ast_smoother_test_flag | ( | struct ast_smoother * | s, | |
int | flag | |||
) |
Definition at line 167 of file frame.c.
References s.
Referenced by ast_rtp_write().
00168 { 00169 return (s->flags & flag); 00170 }
void ast_swapcopy_samples | ( | void * | dst, | |
const void * | src, | |||
int | samples | |||
) |
Definition at line 499 of file frame.c.
Referenced by __ast_smoother_feed(), iax_frame_wrap(), and phone_write_buf().
00500 { 00501 int i; 00502 unsigned short *dst_s = dst; 00503 const unsigned short *src_s = src; 00504 00505 for (i = 0; i < samples; i++) 00506 dst_s[i] = (src_s[i]<<8) | (src_s[i]>>8); 00507 }
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] |
static int g723_len | ( | unsigned char | buf | ) | [static] |
Definition at line 1340 of file frame.c.
References ast_log(), LOG_WARNING, type, TYPE_HIGH, TYPE_LOW, TYPE_MASK, and TYPE_SILENCE.
Referenced by g723_samples().
01341 { 01342 enum frame_type type = buf & TYPE_MASK; 01343 01344 switch(type) { 01345 case TYPE_DONTSEND: 01346 return 0; 01347 break; 01348 case TYPE_SILENCE: 01349 return 4; 01350 break; 01351 case TYPE_HIGH: 01352 return 24; 01353 break; 01354 case TYPE_LOW: 01355 return 20; 01356 break; 01357 default: 01358 ast_log(LOG_WARNING, "Badly encoded frame (%d)\n", type); 01359 } 01360 return -1; 01361 }
static int g723_samples | ( | unsigned char * | buf, | |
int | maxlen | |||
) | [static] |
Definition at line 1363 of file frame.c.
References g723_len().
Referenced by ast_codec_get_samples().
01364 { 01365 int pos = 0; 01366 int samples = 0; 01367 int res; 01368 while(pos < maxlen) { 01369 res = g723_len(buf[pos]); 01370 if (res <= 0) 01371 break; 01372 samples += 240; 01373 pos += res; 01374 } 01375 return samples; 01376 }
static unsigned char get_n_bits_at | ( | unsigned char * | data, | |
int | n, | |||
int | bit | |||
) | [static] |
Definition at line 1378 of file frame.c.
Referenced by speex_get_wb_sz_at(), and speex_samples().
01379 { 01380 int byte = bit / 8; /* byte containing first bit */ 01381 int rem = 8 - (bit % 8); /* remaining bits in first byte */ 01382 unsigned char ret = 0; 01383 01384 if (n <= 0 || n > 8) 01385 return 0; 01386 01387 if (rem < n) { 01388 ret = (data[byte] << (n - rem)); 01389 ret |= (data[byte + 1] >> (8 - n + rem)); 01390 } else { 01391 ret = (data[byte] >> (rem - n)); 01392 } 01393 01394 return (ret & (0xff >> (8 - n))); 01395 }
int init_framer | ( | void | ) |
Provided by frame.c
Definition at line 1026 of file frame.c.
References ast_cli_register_multiple(), and my_clis.
Referenced by main().
01027 { 01028 ast_cli_register_multiple(my_clis, sizeof(my_clis) / sizeof(struct ast_cli_entry)); 01029 return 0; 01030 }
static int show_codec_n | ( | int | fd, | |
int | argc, | |||
char * | argv[] | |||
) | [static] |
Definition at line 726 of file frame.c.
References ast_cli(), ast_codec2str(), RESULT_SHOWUSAGE, and RESULT_SUCCESS.
00727 { 00728 int codec, i, found=0; 00729 00730 if (argc != 4) 00731 return RESULT_SHOWUSAGE; 00732 00733 if (sscanf(argv[3],"%d",&codec) != 1) 00734 return RESULT_SHOWUSAGE; 00735 00736 for (i = 0; i < 32; i++) 00737 if (codec & (1 << i)) { 00738 found = 1; 00739 ast_cli(fd, "%11u (1 << %2d) %s\n",1 << i,i,ast_codec2str(1<<i)); 00740 } 00741 00742 if (!found) 00743 ast_cli(fd, "Codec %d not found\n", codec); 00744 00745 return RESULT_SUCCESS; 00746 }
static int show_codec_n_deprecated | ( | int | fd, | |
int | argc, | |||
char * | argv[] | |||
) | [static] |
Definition at line 704 of file frame.c.
References ast_cli(), ast_codec2str(), RESULT_SHOWUSAGE, and RESULT_SUCCESS.
00705 { 00706 int codec, i, found=0; 00707 00708 if (argc != 3) 00709 return RESULT_SHOWUSAGE; 00710 00711 if (sscanf(argv[2],"%d",&codec) != 1) 00712 return RESULT_SHOWUSAGE; 00713 00714 for (i = 0; i < 32; i++) 00715 if (codec & (1 << i)) { 00716 found = 1; 00717 ast_cli(fd, "%11u (1 << %2d) %s\n",1 << i,i,ast_codec2str(1<<i)); 00718 } 00719 00720 if (!found) 00721 ast_cli(fd, "Codec %d not found\n", codec); 00722 00723 return RESULT_SUCCESS; 00724 }
static int show_codecs | ( | int | fd, | |
int | argc, | |||
char * | argv[] | |||
) | [static] |
Definition at line 656 of file frame.c.
References ast_cli(), ast_codec2str(), ast_getformatname(), ast_opt_dont_warn, RESULT_SHOWUSAGE, and RESULT_SUCCESS.
00657 { 00658 int i, found=0; 00659 char hex[25]; 00660 00661 if ((argc < 3) || (argc > 4)) 00662 return RESULT_SHOWUSAGE; 00663 00664 if (!ast_opt_dont_warn) 00665 ast_cli(fd, "Disclaimer: this command is for informational purposes only.\n" 00666 "\tIt does not indicate anything about your configuration.\n"); 00667 00668 ast_cli(fd, "%11s %9s %10s TYPE %8s %s\n","INT","BINARY","HEX","NAME","DESC"); 00669 ast_cli(fd, "--------------------------------------------------------------------------------\n"); 00670 if ((argc == 3) || (!strcasecmp(argv[3],"audio"))) { 00671 found = 1; 00672 for (i=0;i<13;i++) { 00673 snprintf(hex,25,"(0x%x)",1<<i); 00674 ast_cli(fd, "%11u (1 << %2d) %10s audio %8s (%s)\n",1 << i,i,hex,ast_getformatname(1<<i),ast_codec2str(1<<i)); 00675 } 00676 } 00677 00678 if ((argc == 3) || (!strcasecmp(argv[3],"image"))) { 00679 found = 1; 00680 for (i=16;i<18;i++) { 00681 snprintf(hex,25,"(0x%x)",1<<i); 00682 ast_cli(fd, "%11u (1 << %2d) %10s image %8s (%s)\n",1 << i,i,hex,ast_getformatname(1<<i),ast_codec2str(1<<i)); 00683 } 00684 } 00685 00686 if ((argc == 3) || (!strcasecmp(argv[3],"video"))) { 00687 found = 1; 00688 for (i=18;i<22;i++) { 00689 snprintf(hex,25,"(0x%x)",1<<i); 00690 ast_cli(fd, "%11u (1 << %2d) %10s video %8s (%s)\n",1 << i,i,hex,ast_getformatname(1<<i),ast_codec2str(1<<i)); 00691 } 00692 } 00693 00694 if (! found) 00695 return RESULT_SHOWUSAGE; 00696 else 00697 return RESULT_SUCCESS; 00698 }
static int show_codecs_deprecated | ( | int | fd, | |
int | argc, | |||
char * | argv[] | |||
) | [static] |
Definition at line 612 of file frame.c.
References ast_cli(), ast_codec2str(), ast_getformatname(), ast_opt_dont_warn, RESULT_SHOWUSAGE, and RESULT_SUCCESS.
00613 { 00614 int i, found=0; 00615 char hex[25]; 00616 00617 if ((argc < 2) || (argc > 3)) 00618 return RESULT_SHOWUSAGE; 00619 00620 if (!ast_opt_dont_warn) 00621 ast_cli(fd, "Disclaimer: this command is for informational purposes only.\n" 00622 "\tIt does not indicate anything about your configuration.\n"); 00623 00624 ast_cli(fd, "%11s %9s %10s TYPE %8s %s\n","INT","BINARY","HEX","NAME","DESC"); 00625 ast_cli(fd, "--------------------------------------------------------------------------------\n"); 00626 if ((argc == 2) || (!strcasecmp(argv[1],"audio"))) { 00627 found = 1; 00628 for (i=0;i<13;i++) { 00629 snprintf(hex,25,"(0x%x)",1<<i); 00630 ast_cli(fd, "%11u (1 << %2d) %10s audio %8s (%s)\n",1 << i,i,hex,ast_getformatname(1<<i),ast_codec2str(1<<i)); 00631 } 00632 } 00633 00634 if ((argc == 2) || (!strcasecmp(argv[1],"image"))) { 00635 found = 1; 00636 for (i=16;i<18;i++) { 00637 snprintf(hex,25,"(0x%x)",1<<i); 00638 ast_cli(fd, "%11u (1 << %2d) %10s image %8s (%s)\n",1 << i,i,hex,ast_getformatname(1<<i),ast_codec2str(1<<i)); 00639 } 00640 } 00641 00642 if ((argc == 2) || (!strcasecmp(argv[1],"video"))) { 00643 found = 1; 00644 for (i=18;i<22;i++) { 00645 snprintf(hex,25,"(0x%x)",1<<i); 00646 ast_cli(fd, "%11u (1 << %2d) %10s video %8s (%s)\n",1 << i,i,hex,ast_getformatname(1<<i),ast_codec2str(1<<i)); 00647 } 00648 } 00649 00650 if (! found) 00651 return RESULT_SHOWUSAGE; 00652 else 00653 return RESULT_SUCCESS; 00654 }
static int speex_get_wb_sz_at | ( | unsigned char * | data, | |
int | len, | |||
int | bit | |||
) | [static] |
Definition at line 1397 of file frame.c.
References ast_log(), get_n_bits_at(), and LOG_WARNING.
Referenced by speex_samples().
01398 { 01399 static int SpeexWBSubModeSz[] = { 01400 0, 36, 112, 192, 01401 352, 0, 0, 0 }; 01402 int off = bit; 01403 unsigned char c; 01404 01405 /* skip up to two wideband frames */ 01406 if (((len * 8 - off) >= 5) && 01407 get_n_bits_at(data, 1, off)) { 01408 c = get_n_bits_at(data, 3, off + 1); 01409 off += SpeexWBSubModeSz[c]; 01410 01411 if (((len * 8 - off) >= 5) && 01412 get_n_bits_at(data, 1, off)) { 01413 c = get_n_bits_at(data, 3, off + 1); 01414 off += SpeexWBSubModeSz[c]; 01415 01416 if (((len * 8 - off) >= 5) && 01417 get_n_bits_at(data, 1, off)) { 01418 ast_log(LOG_WARNING, "Encountered corrupt speex frame; too many wideband frames in a row.\n"); 01419 return -1; 01420 } 01421 } 01422 01423 } 01424 return off - bit; 01425 }
static int speex_samples | ( | unsigned char * | data, | |
int | len | |||
) | [static] |
Definition at line 1427 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().
01428 { 01429 static int SpeexSubModeSz[] = { 01430 5, 43, 119, 160, 01431 220, 300, 364, 492, 01432 79, 0, 0, 0, 01433 0, 0, 0, 0 }; 01434 static int SpeexInBandSz[] = { 01435 1, 1, 4, 4, 01436 4, 4, 4, 4, 01437 8, 8, 16, 16, 01438 32, 32, 64, 64 }; 01439 int bit = 0; 01440 int cnt = 0; 01441 int off; 01442 unsigned char c; 01443 01444 while ((len * 8 - bit) >= 5) { 01445 /* skip wideband frames */ 01446 off = speex_get_wb_sz_at(data, len, bit); 01447 if (off < 0) { 01448 ast_log(LOG_WARNING, "Had error while reading wideband frames for speex samples\n"); 01449 break; 01450 } 01451 bit += off; 01452 01453 if ((len * 8 - bit) < 5) { 01454 ast_log(LOG_WARNING, "Not enough bits remaining after wide band for speex samples.\n"); 01455 break; 01456 } 01457 01458 /* get control bits */ 01459 c = get_n_bits_at(data, 5, bit); 01460 bit += 5; 01461 01462 if (c == 15) { 01463 /* terminator */ 01464 break; 01465 } else if (c == 14) { 01466 /* in-band signal; next 4 bits contain signal id */ 01467 c = get_n_bits_at(data, 4, bit); 01468 bit += 4; 01469 bit += SpeexInBandSz[c]; 01470 } else if (c == 13) { 01471 /* user in-band; next 5 bits contain msg len */ 01472 c = get_n_bits_at(data, 5, bit); 01473 bit += 5; 01474 bit += c * 8; 01475 } else if (c > 8) { 01476 /* unknown */ 01477 break; 01478 } else { 01479 /* skip number bits for submode (less the 5 control bits) */ 01480 bit += SpeexSubModeSz[c] - 5; 01481 cnt += 160; /* new frame */ 01482 } 01483 } 01484 return cnt; 01485 }
struct ast_format_list AST_FORMAT_LIST[] [static] |
Definition of supported media formats (codecs).
Definition at line 107 of file frame.c.
Referenced by ast_codec2str(), ast_codec_choose(), ast_codec_pref_append(), ast_codec_pref_getsize(), ast_codec_pref_index(), ast_codec_pref_prepend(), ast_codec_pref_remove(), ast_codec_pref_setsize(), ast_get_format_list(), ast_get_format_list_index(), ast_getformatbyname(), ast_getformatname(), and ast_getformatname_multiple().
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 139 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] |
Definition at line 998 of file frame.c.
Referenced by init_framer(), load_module(), and unload_module().