Asterisk - The Open Source Telephony Project  21.4.1
Data Structures | Macros | Functions | Variables
codec_lpc10.c File Reference

Translate between signed linear and LPC10 (Linear Predictor Code) More...

#include "asterisk.h"
#include "asterisk/translate.h"
#include "asterisk/config.h"
#include "asterisk/module.h"
#include "asterisk/utils.h"
#include "asterisk/linkedlists.h"
#include <lpc10.h>
#include "asterisk/slin.h"
#include "ex_lpc10.h"

Go to the source code of this file.

Data Structures

struct  lpc10_coder_pvt
 

Macros

#define BUFFER_SAMPLES   8000
 
#define LPC10_BYTES_IN_COMPRESSED_FRAME   (LPC10_BITS_IN_COMPRESSED_FRAME + 7)/8
 

Functions

static void __reg_module (void)
 
static void __unreg_module (void)
 
struct ast_moduleAST_MODULE_SELF_SYM (void)
 
static void build_bits (unsigned char *c, INT32 *bits)
 
static void extract_bits (INT32 *bits, unsigned char *c)
 
static int lintolpc10_framein (struct ast_trans_pvt *pvt, struct ast_frame *f)
 
static struct ast_framelintolpc10_frameout (struct ast_trans_pvt *pvt)
 
static int load_module (void)
 
static int lpc10_dec_new (struct ast_trans_pvt *pvt)
 
static void lpc10_destroy (struct ast_trans_pvt *arg)
 
static int lpc10_enc_new (struct ast_trans_pvt *pvt)
 
static int lpc10tolin_framein (struct ast_trans_pvt *pvt, struct ast_frame *f)
 
static int unload_module (void)
 

Variables

static struct ast_module_info __mod_info = { .name = AST_MODULE, .flags = AST_MODFLAG_DEFAULT , .description = "LPC10 2.4kbps Coder/Decoder" , .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, }
 
static const struct ast_module_infoast_module_info = &__mod_info
 
static struct ast_translator lintolpc10
 
static struct ast_translator lpc10tolin
 

Detailed Description

Translate between signed linear and LPC10 (Linear Predictor Code)

Definition in file codec_lpc10.c.