#include "asterisk.h"
#include "asterisk/module.h"
#include "asterisk/config.h"
#include "asterisk/translate.h"
#include "asterisk/ulaw.h"
#include "asterisk/utils.h"
#include "asterisk/slin.h"
#include "ex_ulaw.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 | lintoulaw_framein (struct ast_trans_pvt *pvt, struct ast_frame *f) |
convert and store samples in outbuf | |
static int | load_module (void) |
static int | reload (void) |
static int | ulawtolin_framein (struct ast_trans_pvt *pvt, struct ast_frame *f) |
convert and store samples in outbuf | |
static int | unload_module (void) |
Variables | |
static struct ast_module_info | __mod_info = { .name = AST_MODULE, .flags = AST_MODFLAG_DEFAULT , .description = "mu-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_module_info * | ast_module_info = &__mod_info |
static struct ast_translator | lintotestlaw |
static struct ast_translator | lintoulaw |
The complete translator for LinToulaw. | |
static struct ast_translator | testlawtolin |
static struct ast_translator | ulawtolin |
The complete translator for ulawToLin. |
Definition in file codec_ulaw.c.
#define BUFFER_SAMPLES 8096 |
Definition at line 40 of file codec_ulaw.c.
static void __reg_module | ( | void | ) | [static] |
Definition at line 164 of file codec_ulaw.c.
static void __unreg_module | ( | void | ) | [static] |
Definition at line 164 of file codec_ulaw.c.
static int lintoulaw_framein | ( | struct ast_trans_pvt * | pvt, | |
struct ast_frame * | f | |||
) | [static] |
convert and store samples in outbuf
Definition at line 64 of file codec_ulaw.c.
References AST_LIN2MU, ast_trans_pvt::c, ast_trans_pvt::datalen, f, ast_trans_pvt::outbuf, and ast_trans_pvt::samples.
00065 { 00066 int i = f->samples; 00067 char *dst = pvt->outbuf.c + pvt->samples; 00068 int16_t *src = f->data.ptr; 00069 00070 pvt->samples += i; 00071 pvt->datalen += i; /* 1 byte/sample */ 00072 00073 while (i--) 00074 *dst++ = AST_LIN2MU(*src++); 00075 00076 return 0; 00077 }
static int load_module | ( | void | ) | [static] |
Definition at line 144 of file codec_ulaw.c.
References AST_MODULE_LOAD_FAILURE, AST_MODULE_LOAD_SUCCESS, ast_register_translator, ast_unregister_translator(), lintotestlaw, lintoulaw, testlawtolin, and ulawtolin.
00145 { 00146 int res; 00147 00148 res = ast_register_translator(&ulawtolin); 00149 if (!res) { 00150 res = ast_register_translator(&lintoulaw); 00151 res |= ast_register_translator(&lintotestlaw); 00152 res |= ast_register_translator(&testlawtolin); 00153 } else 00154 ast_unregister_translator(&ulawtolin); 00155 if (res) 00156 return AST_MODULE_LOAD_FAILURE; 00157 return AST_MODULE_LOAD_SUCCESS; 00158 }
static int reload | ( | void | ) | [static] |
Definition at line 127 of file codec_ulaw.c.
References AST_MODULE_LOAD_SUCCESS.
00128 { 00129 return AST_MODULE_LOAD_SUCCESS; 00130 }
static int ulawtolin_framein | ( | struct ast_trans_pvt * | pvt, | |
struct ast_frame * | f | |||
) | [static] |
convert and store samples in outbuf
Definition at line 47 of file codec_ulaw.c.
References AST_MULAW, 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 /* convert and copy in outbuf */ 00057 while (i--) 00058 *dst++ = AST_MULAW(*src++); 00059 00060 return 0; 00061 }
static int unload_module | ( | void | ) | [static] |
Definition at line 132 of file codec_ulaw.c.
References ast_unregister_translator(), lintotestlaw, lintoulaw, testlawtolin, and ulawtolin.
00133 { 00134 int res; 00135 00136 res = ast_unregister_translator(&lintoulaw); 00137 res |= ast_unregister_translator(&ulawtolin); 00138 res |= ast_unregister_translator(&testlawtolin); 00139 res |= ast_unregister_translator(&lintotestlaw); 00140 00141 return res; 00142 }
struct ast_module_info __mod_info = { .name = AST_MODULE, .flags = AST_MODFLAG_DEFAULT , .description = "mu-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 164 of file codec_ulaw.c.
struct ast_module_info* ast_module_info = &__mod_info [static] |
Definition at line 164 of file codec_ulaw.c.
struct ast_translator lintotestlaw [static] |
struct ast_translator lintoulaw [static] |
The complete translator for LinToulaw.
Definition at line 107 of file codec_ulaw.c.
Referenced by dahdi_encoder_framein(), load_module(), and unload_module().
struct ast_translator testlawtolin [static] |
struct ast_translator ulawtolin [static] |
The complete translator for ulawToLin.
Definition at line 83 of file codec_ulaw.c.
Referenced by dahdi_decoder_frameout(), load_module(), and unload_module().