codec_alaw.c - translate between signed linear and alaw More...
#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 int | alawtolin_framein (struct ast_trans_pvt *pvt, struct ast_frame *f) |
decode frame into lin and fill output buffer. | |
AST_MODULE_INFO (ASTERISK_GPL_KEY, AST_MODFLAG_DEFAULT,"A-law Coder/Decoder",.load=load_module,.unload=unload_module,.reload=reload,) | |
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_translator | alawtolin |
static struct ast_translator | lintoalaw |
codec_alaw.c - translate between signed linear and alaw
Definition in file codec_alaw.c.
#define BUFFER_SAMPLES 8096 |
Definition at line 40 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_frame::data, ast_trans_pvt::datalen, ast_trans_pvt::i16, ast_trans_pvt::outbuf, ast_frame::ptr, ast_trans_pvt::samples, and ast_frame::samples.
AST_MODULE_INFO | ( | ASTERISK_GPL_KEY | , | |
AST_MODFLAG_DEFAULT | , | |||
"A-law Coder/Decoder" | , | |||
. | load = load_module , |
|||
. | unload = unload_module , |
|||
. | reload = reload | |||
) |
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_frame::data, ast_trans_pvt::datalen, ast_trans_pvt::outbuf, ast_frame::ptr, ast_trans_pvt::samples, and ast_frame::samples.
static int load_module | ( | void | ) | [static] |
Definition at line 115 of file codec_alaw.c.
References AST_MODULE_LOAD_FAILURE, AST_MODULE_LOAD_SUCCESS, ast_register_translator, and ast_unregister_translator().
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 ast_unregister_translator().
00106 { 00107 int res; 00108 00109 res = ast_unregister_translator(&lintoalaw); 00110 res |= ast_unregister_translator(&alawtolin); 00111 00112 return res; 00113 }
struct ast_translator alawtolin [static] |
Definition at line 78 of file codec_alaw.c.
struct ast_translator lintoalaw [static] |
Definition at line 88 of file codec_alaw.c.