Asterisk - The Open Source Telephony Project GIT-master-0bf3178
|
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/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_module * | AST_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_frame * | lintolpc10_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 = AST_BUILDOPT_SUM, .support_level = AST_MODULE_SUPPORT_CORE, .load = load_module, .unload = unload_module, } |
static const struct ast_module_info * | ast_module_info = &__mod_info |
static struct ast_translator | lintolpc10 |
static struct ast_translator | lpc10tolin |
Translate between signed linear and LPC10 (Linear Predictor Code)
Definition in file codec_lpc10.c.
#define BUFFER_SAMPLES 8000 |
Definition at line 55 of file codec_lpc10.c.
#define LPC10_BYTES_IN_COMPRESSED_FRAME (LPC10_BITS_IN_COMPRESSED_FRAME + 7)/8 |
Definition at line 53 of file codec_lpc10.c.
|
static |
Definition at line 285 of file codec_lpc10.c.
|
static |
Definition at line 285 of file codec_lpc10.c.
struct ast_module * AST_MODULE_SELF_SYM | ( | void | ) |
Definition at line 285 of file codec_lpc10.c.
|
static |
Definition at line 95 of file codec_lpc10.c.
References c, and LPC10_BITS_IN_COMPRESSED_FRAME.
Referenced by lintolpc10_frameout().
|
static |
Definition at line 81 of file codec_lpc10.c.
References c, and LPC10_BITS_IN_COMPRESSED_FRAME.
Referenced by lpc10tolin_framein().
|
static |
Definition at line 145 of file codec_lpc10.c.
References ast_log, BUFFER_SAMPLES, ast_frame::data, ast_frame::datalen, LOG_WARNING, ast_frame::ptr, ast_trans_pvt::pvt, ast_frame::samples, ast_trans_pvt::samples, and tmp().
|
static |
Definition at line 159 of file codec_lpc10.c.
References AST_LIST_NEXT, ast_trans_frameout(), build_bits(), current, last, LPC10_BITS_IN_COMPRESSED_FRAME, LPC10_BYTES_IN_COMPRESSED_FRAME, lpc10_encode(), LPC10_SAMPLES_PER_FRAME, NULL, ast_trans_pvt::outbuf, ast_trans_pvt::pvt, result, ast_frame::samples, ast_trans_pvt::samples, tmp(), and ast_trans_pvt::uc.
|
static |
Definition at line 266 of file codec_lpc10.c.
References AST_MODULE_LOAD_DECLINE, AST_MODULE_LOAD_SUCCESS, ast_register_translator, lintolpc10, lpc10tolin, and unload_module().
|
static |
Definition at line 74 of file codec_lpc10.c.
References create_lpc10_decoder_state(), ast_trans_pvt::pvt, and tmp().
|
static |
Definition at line 204 of file codec_lpc10.c.
References ast_free, lpc10_coder_pvt::enc, lpc10_coder_pvt::lpc10, and ast_trans_pvt::pvt.
|
static |
Definition at line 67 of file codec_lpc10.c.
References create_lpc10_encoder_state(), ast_trans_pvt::pvt, and tmp().
|
static |
Definition at line 112 of file codec_lpc10.c.
References ast_log, BUFFER_SAMPLES, ast_frame::data, ast_frame::datalen, ast_trans_pvt::datalen, extract_bits(), ast_trans_pvt::i16, len(), LOG_WARNING, LPC10_BITS_IN_COMPRESSED_FRAME, LPC10_BYTES_IN_COMPRESSED_FRAME, lpc10_decode(), LPC10_SAMPLES_PER_FRAME, ast_trans_pvt::outbuf, ast_frame::ptr, ast_trans_pvt::pvt, ast_trans_pvt::samples, and tmp().
|
static |
Definition at line 256 of file codec_lpc10.c.
References ast_unregister_translator(), lintolpc10, and lpc10tolin.
Referenced by load_module().
|
static |
Definition at line 285 of file codec_lpc10.c.
|
static |
Definition at line 285 of file codec_lpc10.c.
|
static |
Definition at line 233 of file codec_lpc10.c.
Referenced by load_module(), and unload_module().
|
static |
Definition at line 211 of file codec_lpc10.c.
Referenced by load_module(), and unload_module().