#include "asterisk.h"
#include <unistd.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <stdlib.h>
#include <sys/time.h>
#include <stdio.h>
#include <errno.h>
#include <string.h>
#include "asterisk/lock.h"
#include "asterisk/channel.h"
#include "asterisk/file.h"
#include "asterisk/logger.h"
#include "asterisk/sched.h"
#include "asterisk/module.h"
#include "asterisk/endian.h"
Go to the source code of this file.
Defines | |
#define | BUF_SIZE 80 |
#define | VOX_SAMPLES 160 |
Functions | |
static void | __reg_module (void) |
static void | __unreg_module (void) |
static int | load_module (void) |
static int | unload_module (void) |
static struct ast_frame * | vox_read (struct ast_filestream *s, int *whennext) |
static int | vox_seek (struct ast_filestream *fs, off_t sample_offset, int whence) |
static off_t | vox_tell (struct ast_filestream *fs) |
static int | vox_trunc (struct ast_filestream *fs) |
static int | vox_write (struct ast_filestream *s, struct ast_frame *f) |
Variables | |
static struct ast_module_info | __mod_info = { .name = AST_MODULE, .flags = AST_MODFLAG_LOAD_FIRST | AST_MODFLAG_BUILDSUM, .description = "Dialogic VOX (ADPCM) File Format" , .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 = "361d7bb937402d51e4658efb5b4d76e4" , .load = load_module, .unload = unload_module, } |
static const struct ast_module_info * | ast_module_info = &__mod_info |
static struct ast_format | vox_f |
Definition in file format_vox.c.
#define BUF_SIZE 80 |
Definition at line 48 of file format_vox.c.
#define VOX_SAMPLES 160 |
Definition at line 49 of file format_vox.c.
static void __reg_module | ( | void | ) | [static] |
Definition at line 149 of file format_vox.c.
static void __unreg_module | ( | void | ) | [static] |
Definition at line 149 of file format_vox.c.
static int load_module | ( | void | ) | [static] |
Definition at line 136 of file format_vox.c.
References ast_format_register, and vox_f.
00137 { 00138 return ast_format_register(&vox_f); 00139 }
static int unload_module | ( | void | ) | [static] |
Definition at line 141 of file format_vox.c.
References ast_format_unregister(), ast_format::name, and vox_f.
00142 { 00143 return ast_format_unregister(vox_f.name); 00144 }
static struct ast_frame* vox_read | ( | struct ast_filestream * | s, | |
int * | whennext | |||
) | [static] |
Definition at line 51 of file format_vox.c.
References AST_FORMAT_ADPCM, AST_FRAME_SET_BUFFER, AST_FRAME_VOICE, AST_FRIENDLY_OFFSET, ast_log(), BUF_SIZE, errno, LOG_WARNING, and s.
00052 { 00053 int res; 00054 00055 /* Send a frame from the file to the appropriate channel */ 00056 s->fr.frametype = AST_FRAME_VOICE; 00057 s->fr.subclass = AST_FORMAT_ADPCM; 00058 s->fr.mallocd = 0; 00059 AST_FRAME_SET_BUFFER(&s->fr, s->buf, AST_FRIENDLY_OFFSET, BUF_SIZE); 00060 if ((res = fread(s->fr.data, 1, s->fr.datalen, s->f)) < 1) { 00061 if (res) 00062 ast_log(LOG_WARNING, "Short read (%d) (%s)!\n", res, strerror(errno)); 00063 return NULL; 00064 } 00065 *whennext = s->fr.samples = res * 2; 00066 s->fr.datalen = res; 00067 return &s->fr; 00068 }
static int vox_seek | ( | struct ast_filestream * | fs, | |
off_t | sample_offset, | |||
int | whence | |||
) | [static] |
Definition at line 88 of file format_vox.c.
References ast_filestream::f, offset, and SEEK_FORCECUR.
00089 { 00090 off_t offset=0,min,cur,max,distance; 00091 00092 min = 0; 00093 cur = ftello(fs->f); 00094 fseeko(fs->f, 0, SEEK_END); 00095 max = ftello(fs->f); 00096 00097 /* have to fudge to frame here, so not fully to sample */ 00098 distance = sample_offset/2; 00099 if(whence == SEEK_SET) 00100 offset = distance; 00101 else if(whence == SEEK_CUR || whence == SEEK_FORCECUR) 00102 offset = distance + cur; 00103 else if(whence == SEEK_END) 00104 offset = max - distance; 00105 if (whence != SEEK_FORCECUR) { 00106 offset = (offset > max)?max:offset; 00107 offset = (offset < min)?min:offset; 00108 } 00109 return fseeko(fs->f, offset, SEEK_SET); 00110 }
static off_t vox_tell | ( | struct ast_filestream * | fs | ) | [static] |
static int vox_trunc | ( | struct ast_filestream * | fs | ) | [static] |
static int vox_write | ( | struct ast_filestream * | s, | |
struct ast_frame * | f | |||
) | [static] |
Definition at line 70 of file format_vox.c.
References AST_FORMAT_ADPCM, AST_FRAME_VOICE, ast_log(), errno, f, LOG_WARNING, and s.
00071 { 00072 int res; 00073 if (f->frametype != AST_FRAME_VOICE) { 00074 ast_log(LOG_WARNING, "Asked to write non-voice frame!\n"); 00075 return -1; 00076 } 00077 if (f->subclass != AST_FORMAT_ADPCM) { 00078 ast_log(LOG_WARNING, "Asked to write non-ADPCM frame (%d)!\n", f->subclass); 00079 return -1; 00080 } 00081 if ((res = fwrite(f->data, 1, f->datalen, s->f)) != f->datalen) { 00082 ast_log(LOG_WARNING, "Bad write (%d/%d): %s\n", res, f->datalen, strerror(errno)); 00083 return -1; 00084 } 00085 return 0; 00086 }
struct ast_module_info __mod_info = { .name = AST_MODULE, .flags = AST_MODFLAG_LOAD_FIRST | AST_MODFLAG_BUILDSUM, .description = "Dialogic VOX (ADPCM) File Format" , .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 = "361d7bb937402d51e4658efb5b4d76e4" , .load = load_module, .unload = unload_module, } [static] |
Definition at line 149 of file format_vox.c.
const struct ast_module_info* ast_module_info = &__mod_info [static] |
Definition at line 149 of file format_vox.c.
struct ast_format vox_f [static] |