Asterisk - The Open Source Telephony Project  21.4.1
Data Structures | Macros | Functions | Variables
format_wav.c File Reference

Work with WAV in the proprietary Microsoft format. Microsoft WAV format (8000hz Signed Linear) More...

#include "asterisk.h"
#include "asterisk/mod_format.h"
#include "asterisk/module.h"
#include "asterisk/endian.h"
#include "asterisk/format_cache.h"
#include "asterisk/format.h"
#include "asterisk/codec.h"

Go to the source code of this file.

Data Structures

struct  wav_desc
 

Macros

#define BLOCKSIZE   160
 
#define WAV_BUF_SIZE   320
 
#define WAV_HEADER_SIZE   44
 

Functions

static void __reg_module (void)
 
static void __unreg_module (void)
 
struct ast_moduleAST_MODULE_SELF_SYM (void)
 
static int check_header (FILE *f, int hz)
 
static int check_header_fmt (FILE *f, int hsize, int hz)
 
static int load_module (void)
 
static int unload_module (void)
 
static int update_header (FILE *f)
 
static void wav_close (struct ast_filestream *s)
 
static int wav_open (struct ast_filestream *s)
 
static struct ast_framewav_read (struct ast_filestream *s, int *whennext)
 
static int wav_rewrite (struct ast_filestream *s, const char *comment)
 
static int wav_seek (struct ast_filestream *fs, off_t sample_offset, int whence)
 
static off_t wav_tell (struct ast_filestream *fs)
 
static int wav_trunc (struct ast_filestream *fs)
 
static int wav_write (struct ast_filestream *fs, struct ast_frame *f)
 
static int write_header (FILE *f, int writehz)
 

Variables

static struct ast_module_info __mod_info = { .name = AST_MODULE, .flags = AST_MODFLAG_LOAD_ORDER , .description = "Microsoft WAV/WAV16 format (8kHz/16kHz Signed Linear)" , .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 = "da6642af068ee5e6490c5b1d2cc1d238" , .support_level = AST_MODULE_SUPPORT_CORE, .load = load_module, .unload = unload_module, .load_pri = AST_MODPRI_APP_DEPEND }
 
static const struct ast_module_infoast_module_info = &__mod_info
 
static struct ast_format_def wav16_f
 
static struct ast_format_def wav_f
 

Detailed Description

Work with WAV in the proprietary Microsoft format. Microsoft WAV format (8000hz Signed Linear)

Definition in file format_wav.c.