Asterisk - The Open Source Telephony Project  21.4.1
Macros | Functions | Variables
format_siren14.c File Reference

ITU G.722.1 Annex C (Siren14, licensed from Polycom) format, 48kbps bitrate only. More...

#include "asterisk.h"
#include "asterisk/mod_format.h"
#include "asterisk/module.h"
#include "asterisk/endian.h"
#include "asterisk/format_cache.h"

Go to the source code of this file.

Macros

#define BUF_SIZE   120 /* 20 milliseconds == 120 bytes, 640 samples */
 
#define BYTES_TO_SAMPLES(x)   ((typeof(x)) x * ((float) 640 / 120))
 
#define SAMPLES_TO_BYTES(x)   ((typeof(x)) x / ((float) 640 / 120))
 

Functions

static void __reg_module (void)
 
static void __unreg_module (void)
 
struct ast_moduleAST_MODULE_SELF_SYM (void)
 
static int load_module (void)
 
static struct ast_framesiren14read (struct ast_filestream *s, int *whennext)
 
static int siren14seek (struct ast_filestream *fs, off_t sample_offset, int whence)
 
static off_t siren14tell (struct ast_filestream *fs)
 
static int siren14trunc (struct ast_filestream *fs)
 
static int siren14write (struct ast_filestream *fs, struct ast_frame *f)
 
static int unload_module (void)
 

Variables

static struct ast_module_info __mod_info = { .name = AST_MODULE, .flags = AST_MODFLAG_LOAD_ORDER , .description = "ITU G.722.1 Annex C (Siren14, licensed from Polycom)" , .key = "This paragraph is copyright (c) 2006 by Digium, Inc. \In order for your module to load, it must return this \key via a function called \"key\". Any code which \includes this paragraph must be licensed under the GNU \General Public License version 2 or later (at your \option). In addition to Digium's general reservations \of rights, Digium expressly reserves the right to \allow other parties to license this paragraph under \different terms. Any use of Digium, Inc. trademarks or \logos (including \"Asterisk\" or \"Digium\") without \express written permission of Digium, Inc. is prohibited.\n" , .buildopt_sum = "da6642af068ee5e6490c5b1d2cc1d238" , .support_level = AST_MODULE_SUPPORT_CORE, .load = load_module, .unload = unload_module, .load_pri = AST_MODPRI_APP_DEPEND }
 
static const struct ast_module_infoast_module_info = &__mod_info
 
static struct ast_format_def siren14_f
 

Detailed Description

ITU G.722.1 Annex C (Siren14, licensed from Polycom) format, 48kbps bitrate only.

Definition in file format_siren14.c.