#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 = "8586c2a7d357cb591cc3a6607a8f62d1" , .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 36 of file codec_ulaw.c.
static void __reg_module | ( | void | ) | [static] |
Definition at line 160 of file codec_ulaw.c.
static void __unreg_module | ( | void | ) | [static] |
Definition at line 160 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 60 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.
00061 { 00062 int i = f->samples; 00063 char *dst = pvt->outbuf.c + pvt->samples; 00064 int16_t *src = f->data.ptr; 00065 00066 pvt->samples += i; 00067 pvt->datalen += i; /* 1 byte/sample */ 00068 00069 while (i--) 00070 *dst++ = AST_LIN2MU(*src++); 00071 00072 return 0; 00073 }
static int load_module | ( | void | ) | [static] |
Definition at line 140 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.
00141 { 00142 int res; 00143 00144 res = ast_register_translator(&ulawtolin); 00145 if (!res) { 00146 res = ast_register_translator(&lintoulaw); 00147 res |= ast_register_translator(&lintotestlaw); 00148 res |= ast_register_translator(&testlawtolin); 00149 } else 00150 ast_unregister_translator(&ulawtolin); 00151 if (res) 00152 return AST_MODULE_LOAD_FAILURE; 00153 return AST_MODULE_LOAD_SUCCESS; 00154 }
static int reload | ( | void | ) | [static] |
Definition at line 123 of file codec_ulaw.c.
References AST_MODULE_LOAD_SUCCESS.
00124 { 00125 return AST_MODULE_LOAD_SUCCESS; 00126 }
static int ulawtolin_framein | ( | struct ast_trans_pvt * | pvt, | |
struct ast_frame * | f | |||
) | [static] |
convert and store samples in outbuf
Definition at line 43 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.
00044 { 00045 int i = f->samples; 00046 unsigned char *src = f->data.ptr; 00047 int16_t *dst = pvt->outbuf.i16 + pvt->samples; 00048 00049 pvt->samples += i; 00050 pvt->datalen += i * 2; /* 2 bytes/sample */ 00051 00052 /* convert and copy in outbuf */ 00053 while (i--) 00054 *dst++ = AST_MULAW(*src++); 00055 00056 return 0; 00057 }
static int unload_module | ( | void | ) | [static] |
Definition at line 128 of file codec_ulaw.c.
References ast_unregister_translator(), lintotestlaw, lintoulaw, testlawtolin, and ulawtolin.
00129 { 00130 int res; 00131 00132 res = ast_unregister_translator(&lintoulaw); 00133 res |= ast_unregister_translator(&ulawtolin); 00134 res |= ast_unregister_translator(&testlawtolin); 00135 res |= ast_unregister_translator(&lintotestlaw); 00136 00137 return res; 00138 }
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 = "8586c2a7d357cb591cc3a6607a8f62d1" , .load = load_module, .unload = unload_module, .reload = reload, } [static] |
Definition at line 160 of file codec_ulaw.c.
struct ast_module_info* ast_module_info = &__mod_info [static] |
Definition at line 160 of file codec_ulaw.c.
struct ast_translator lintotestlaw [static] |
struct ast_translator lintoulaw [static] |
The complete translator for LinToulaw.
Definition at line 103 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 79 of file codec_ulaw.c.
Referenced by dahdi_decoder_frameout(), load_module(), and unload_module().