#include "asterisk.h"
#include "asterisk/mod_format.h"
#include "asterisk/module.h"
#include "asterisk/endian.h"
Go to the source code of this file.
Defines | |
#define | BUF_SIZE 80 |
#define | BYTES_TO_SAMPLES(x) x * (320 / 80) |
#define | SAMPLES_TO_BYTES(x) x / (320 / 80) |
Functions | |
static void | __reg_module (void) |
static void | __unreg_module (void) |
static int | load_module (void) |
static struct ast_frame * | siren7read (struct ast_filestream *s, int *whennext) |
static int | siren7seek (struct ast_filestream *fs, off_t sample_offset, int whence) |
static off_t | siren7tell (struct ast_filestream *fs) |
static int | siren7trunc (struct ast_filestream *fs) |
static int | siren7write (struct ast_filestream *fs, struct ast_frame *f) |
static int | unload_module (void) |
Variables | |
static struct ast_module_info | __mod_info = { .name = AST_MODULE, .flags = AST_MODFLAG_LOAD_ORDER , .description = "ITU G.722.1 (Siren7, licensed from Polycom)" , .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, .load_pri = AST_MODPRI_APP_DEPEND } |
static struct ast_module_info * | ast_module_info = &__mod_info |
static struct ast_format | siren7_f |
Definition in file format_siren7.c.
#define BUF_SIZE 80 |
Definition at line 34 of file format_siren7.c.
#define BYTES_TO_SAMPLES | ( | x | ) | x * (320 / 80) |
Definition at line 36 of file format_siren7.c.
#define SAMPLES_TO_BYTES | ( | x | ) | x / (320 / 80) |
Definition at line 35 of file format_siren7.c.
static void __reg_module | ( | void | ) | [static] |
Definition at line 142 of file format_siren7.c.
static void __unreg_module | ( | void | ) | [static] |
Definition at line 142 of file format_siren7.c.
static int load_module | ( | void | ) | [static] |
Definition at line 125 of file format_siren7.c.
References ast_format_register, AST_MODULE_LOAD_DECLINE, AST_MODULE_LOAD_SUCCESS, and siren7_f.
00126 { 00127 if (ast_format_register(&siren7_f)) 00128 return AST_MODULE_LOAD_DECLINE; 00129 00130 return AST_MODULE_LOAD_SUCCESS; 00131 }
static struct ast_frame* siren7read | ( | struct ast_filestream * | s, | |
int * | whennext | |||
) | [static] |
Definition at line 38 of file format_siren7.c.
References AST_FORMAT_SIREN7, AST_FRAME_SET_BUFFER, AST_FRAME_VOICE, AST_FRIENDLY_OFFSET, ast_log(), ast_filestream::buf, BUF_SIZE, BYTES_TO_SAMPLES, ast_frame_subclass::codec, ast_frame::data, ast_frame::datalen, errno, ast_filestream::f, ast_filestream::fr, ast_frame::frametype, LOG_WARNING, ast_frame::mallocd, ast_frame::ptr, ast_frame::samples, and ast_frame::subclass.
00039 { 00040 int res; 00041 /* Send a frame from the file to the appropriate channel */ 00042 00043 s->fr.frametype = AST_FRAME_VOICE; 00044 s->fr.subclass.codec = AST_FORMAT_SIREN7; 00045 s->fr.mallocd = 0; 00046 AST_FRAME_SET_BUFFER(&s->fr, s->buf, AST_FRIENDLY_OFFSET, BUF_SIZE); 00047 if ((res = fread(s->fr.data.ptr, 1, s->fr.datalen, s->f)) != s->fr.datalen) { 00048 if (res) 00049 ast_log(LOG_WARNING, "Short read (%d) (%s)!\n", res, strerror(errno)); 00050 return NULL; 00051 } 00052 *whennext = s->fr.samples = BYTES_TO_SAMPLES(res); 00053 return &s->fr; 00054 }
static int siren7seek | ( | struct ast_filestream * | fs, | |
off_t | sample_offset, | |||
int | whence | |||
) | [static] |
Definition at line 75 of file format_siren7.c.
References ast_filestream::f, ast_frame::offset, SAMPLES_TO_BYTES, and SEEK_FORCECUR.
00076 { 00077 off_t offset = 0, min = 0, cur, max; 00078 00079 sample_offset = SAMPLES_TO_BYTES(sample_offset); 00080 00081 cur = ftello(fs->f); 00082 00083 fseeko(fs->f, 0, SEEK_END); 00084 00085 max = ftello(fs->f); 00086 00087 if (whence == SEEK_SET) 00088 offset = sample_offset; 00089 else if (whence == SEEK_CUR || whence == SEEK_FORCECUR) 00090 offset = sample_offset + cur; 00091 else if (whence == SEEK_END) 00092 offset = max - sample_offset; 00093 00094 if (whence != SEEK_FORCECUR) 00095 offset = (offset > max) ? max : offset; 00096 00097 /* always protect against seeking past begining. */ 00098 offset = (offset < min) ? min : offset; 00099 00100 return fseeko(fs->f, offset, SEEK_SET); 00101 }
static off_t siren7tell | ( | struct ast_filestream * | fs | ) | [static] |
Definition at line 108 of file format_siren7.c.
References BYTES_TO_SAMPLES, and ast_filestream::f.
00109 { 00110 return BYTES_TO_SAMPLES(ftello(fs->f)); 00111 }
static int siren7trunc | ( | struct ast_filestream * | fs | ) | [static] |
static int siren7write | ( | struct ast_filestream * | fs, | |
struct ast_frame * | f | |||
) | [static] |
Definition at line 56 of file format_siren7.c.
References AST_FORMAT_SIREN7, AST_FRAME_VOICE, ast_getformatname(), ast_log(), errno, ast_filestream::f, f, fwrite, and LOG_WARNING.
00057 { 00058 int res; 00059 00060 if (f->frametype != AST_FRAME_VOICE) { 00061 ast_log(LOG_WARNING, "Asked to write non-voice frame!\n"); 00062 return -1; 00063 } 00064 if (f->subclass.codec != AST_FORMAT_SIREN7) { 00065 ast_log(LOG_WARNING, "Asked to write non-Siren7 frame (%s)!\n", ast_getformatname(f->subclass.codec)); 00066 return -1; 00067 } 00068 if ((res = fwrite(f->data.ptr, 1, f->datalen, fs->f)) != f->datalen) { 00069 ast_log(LOG_WARNING, "Bad write (%d/%d): %s\n", res, f->datalen, strerror(errno)); 00070 return -1; 00071 } 00072 return 0; 00073 }
static int unload_module | ( | void | ) | [static] |
Definition at line 133 of file format_siren7.c.
References ast_format_unregister(), ast_format::name, and siren7_f.
00134 { 00135 return ast_format_unregister(siren7_f.name); 00136 }
struct ast_module_info __mod_info = { .name = AST_MODULE, .flags = AST_MODFLAG_LOAD_ORDER , .description = "ITU G.722.1 (Siren7, licensed from Polycom)" , .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, .load_pri = AST_MODPRI_APP_DEPEND } [static] |
Definition at line 142 of file format_siren7.c.
struct ast_module_info* ast_module_info = &__mod_info [static] |
Definition at line 142 of file format_siren7.c.
struct ast_format siren7_f [static] |