#include "asterisk.h"
#include "asterisk/module.h"
#include "asterisk/config.h"
#include "asterisk/translate.h"
#include "asterisk/alaw.h"
#include "asterisk/utils.h"
#include "asterisk/slin.h"
#include "ex_alaw.h"
Go to the source code of this file.
Defines | |
#define | BUFFER_SAMPLES 8096 |
Functions | |
static void | __reg_module (void) |
static void | __unreg_module (void) |
static int | alawtolin_framein (struct ast_trans_pvt *pvt, struct ast_frame *f) |
decode frame into lin and fill output buffer. | |
static int | lintoalaw_framein (struct ast_trans_pvt *pvt, struct ast_frame *f) |
convert and store input samples in output buffer | |
static int | load_module (void) |
static int | reload (void) |
standard module stuff | |
static int | unload_module (void) |
Variables | |
static struct ast_module_info | __mod_info = { .name = AST_MODULE, .flags = AST_MODFLAG_DEFAULT , .description = "A-law 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 = "ac1f6a56484a8820659555499174e588" , .load = load_module, .unload = unload_module, .reload = reload, } |
static struct ast_translator | alawtolin |
static struct ast_module_info * | ast_module_info = &__mod_info |
static struct ast_translator | lintoalaw |
Definition in file codec_alaw.c.
#define BUFFER_SAMPLES 8096 |
Definition at line 40 of file codec_alaw.c.
static void __reg_module | ( | void | ) | [static] |
Definition at line 133 of file codec_alaw.c.
static void __unreg_module | ( | void | ) | [static] |
Definition at line 133 of file codec_alaw.c.
static int alawtolin_framein | ( | struct ast_trans_pvt * | pvt, | |
struct ast_frame * | f | |||
) | [static] |
decode frame into lin and fill output buffer.
Definition at line 47 of file codec_alaw.c.
References AST_ALAW, ast_trans_pvt::datalen, f, ast_trans_pvt::i16, ast_trans_pvt::outbuf, and ast_trans_pvt::samples.
00048 { 00049 int i = f->samples; 00050 unsigned char *src = f->data.ptr; 00051 int16_t *dst = pvt->outbuf.i16 + pvt->samples; 00052 00053 pvt->samples += i; 00054 pvt->datalen += i * 2; /* 2 bytes/sample */ 00055 00056 while (i--) 00057 *dst++ = AST_ALAW(*src++); 00058 00059 return 0; 00060 }
static int lintoalaw_framein | ( | struct ast_trans_pvt * | pvt, | |
struct ast_frame * | f | |||
) | [static] |
convert and store input samples in output buffer
Definition at line 63 of file codec_alaw.c.
References AST_LIN2A, ast_trans_pvt::c, ast_trans_pvt::datalen, f, ast_trans_pvt::outbuf, and ast_trans_pvt::samples.
00064 { 00065 int i = f->samples; 00066 char *dst = pvt->outbuf.c + pvt->samples; 00067 int16_t *src = f->data.ptr; 00068 00069 pvt->samples += i; 00070 pvt->datalen += i; /* 1 byte/sample */ 00071 00072 while (i--) 00073 *dst++ = AST_LIN2A(*src++); 00074 00075 return 0; 00076 }
static int load_module | ( | void | ) | [static] |
Definition at line 115 of file codec_alaw.c.
References alawtolin, AST_MODULE_LOAD_FAILURE, AST_MODULE_LOAD_SUCCESS, ast_register_translator, ast_unregister_translator(), and lintoalaw.
00116 { 00117 int res; 00118 00119 res = ast_register_translator(&alawtolin); 00120 if (!res) 00121 res = ast_register_translator(&lintoalaw); 00122 else 00123 ast_unregister_translator(&alawtolin); 00124 if (res) 00125 return AST_MODULE_LOAD_FAILURE; 00126 return AST_MODULE_LOAD_SUCCESS; 00127 }
static int reload | ( | void | ) | [static] |
standard module stuff
Definition at line 100 of file codec_alaw.c.
References AST_MODULE_LOAD_SUCCESS.
00101 { 00102 return AST_MODULE_LOAD_SUCCESS; 00103 }
static int unload_module | ( | void | ) | [static] |
Definition at line 105 of file codec_alaw.c.
References alawtolin, ast_unregister_translator(), and lintoalaw.
00106 { 00107 int res; 00108 00109 res = ast_unregister_translator(&lintoalaw); 00110 res |= ast_unregister_translator(&alawtolin); 00111 00112 return res; 00113 }
struct ast_module_info __mod_info = { .name = AST_MODULE, .flags = AST_MODFLAG_DEFAULT , .description = "A-law 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 = "ac1f6a56484a8820659555499174e588" , .load = load_module, .unload = unload_module, .reload = reload, } [static] |
Definition at line 133 of file codec_alaw.c.
struct ast_translator alawtolin [static] |
struct ast_module_info* ast_module_info = &__mod_info [static] |
Definition at line 133 of file codec_alaw.c.
struct ast_translator lintoalaw [static] |