#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 160 |
#define | BYTES_TO_SAMPLES(x) ((typeof(x)) x * ((float) 960 / 160)) |
#define | SAMPLES_TO_BYTES(x) ((typeof(x)) x / ((float) 960 / 160)) |
Functions | |
static void | __reg_module (void) |
static void | __unreg_module (void) |
static struct ast_frame * | g719read (struct ast_filestream *s, int *whennext) |
static int | g719seek (struct ast_filestream *fs, off_t sample_offset, int whence) |
static off_t | g719tell (struct ast_filestream *fs) |
static int | g719trunc (struct ast_filestream *fs) |
static int | g719write (struct ast_filestream *fs, struct ast_frame *f) |
static int | load_module (void) |
static int | unload_module (void) |
Variables | |
static struct ast_module_info | __mod_info = { .name = AST_MODULE, .flags = AST_MODFLAG_LOAD_ORDER , .description = "ITU G.719" , .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 = "ac1f6a56484a8820659555499174e588" , .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 | g719_f |
Definition in file format_g719.c.
#define BUF_SIZE 160 |
Definition at line 38 of file format_g719.c.
Referenced by g719read(), g729_read(), g729_seek(), g729_tell(), gen_prios(), h263_read(), h264_read(), ogg_vorbis_read(), pcm_read(), pcm_seek(), siren14read(), siren7read(), slinear_read(), and vox_read().
#define BYTES_TO_SAMPLES | ( | x | ) | ((typeof(x)) x * ((float) 960 / 160)) |
Definition at line 40 of file format_g719.c.
Referenced by g719read(), g719tell(), siren14read(), siren14tell(), siren7read(), and siren7tell().
#define SAMPLES_TO_BYTES | ( | x | ) | ((typeof(x)) x / ((float) 960 / 160)) |
Definition at line 39 of file format_g719.c.
Referenced by g719seek(), siren14seek(), and siren7seek().
static void __reg_module | ( | void | ) | [static] |
Definition at line 166 of file format_g719.c.
static void __unreg_module | ( | void | ) | [static] |
Definition at line 166 of file format_g719.c.
static struct ast_frame* g719read | ( | struct ast_filestream * | s, | |
int * | whennext | |||
) | [static] |
Definition at line 42 of file format_g719.c.
References AST_FORMAT_G719, 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.
00043 { 00044 int res; 00045 /* Send a frame from the file to the appropriate channel */ 00046 00047 s->fr.frametype = AST_FRAME_VOICE; 00048 s->fr.subclass.codec = AST_FORMAT_G719; 00049 s->fr.mallocd = 0; 00050 AST_FRAME_SET_BUFFER(&s->fr, s->buf, AST_FRIENDLY_OFFSET, BUF_SIZE); 00051 if ((res = fread(s->fr.data.ptr, 1, s->fr.datalen, s->f)) != s->fr.datalen) { 00052 if (res) 00053 ast_log(LOG_WARNING, "Short read (%d) (%s)!\n", res, strerror(errno)); 00054 return NULL; 00055 } 00056 *whennext = s->fr.samples = BYTES_TO_SAMPLES(res); 00057 return &s->fr; 00058 }
static int g719seek | ( | struct ast_filestream * | fs, | |
off_t | sample_offset, | |||
int | whence | |||
) | [static] |
Definition at line 79 of file format_g719.c.
References ast_log(), AST_LOG_WARNING, errno, ast_filestream::f, ast_frame::offset, SAMPLES_TO_BYTES, and SEEK_FORCECUR.
00080 { 00081 off_t offset = 0, min = 0, cur, max; 00082 00083 sample_offset = SAMPLES_TO_BYTES(sample_offset); 00084 00085 if ((cur = ftello(fs->f)) < 0) { 00086 ast_log(AST_LOG_WARNING, "Unable to determine current position in g719 filestream %p: %s\n", fs, strerror(errno)); 00087 return -1; 00088 } 00089 00090 if (fseeko(fs->f, 0, SEEK_END) < 0) { 00091 ast_log(AST_LOG_WARNING, "Unable to seek to end of g719 filestream %p: %s\n", fs, strerror(errno)); 00092 return -1; 00093 } 00094 00095 if ((max = ftello(fs->f)) < 0) { 00096 ast_log(AST_LOG_WARNING, "Unable to determine max position in g719 filestream %p: %s\n", fs, strerror(errno)); 00097 return -1; 00098 } 00099 00100 if (whence == SEEK_SET) 00101 offset = sample_offset; 00102 else if (whence == SEEK_CUR || whence == SEEK_FORCECUR) 00103 offset = sample_offset + cur; 00104 else if (whence == SEEK_END) 00105 offset = max - sample_offset; 00106 00107 if (whence != SEEK_FORCECUR) 00108 offset = (offset > max) ? max : offset; 00109 00110 /* always protect against seeking past begining. */ 00111 offset = (offset < min) ? min : offset; 00112 00113 return fseeko(fs->f, offset, SEEK_SET); 00114 }
static off_t g719tell | ( | struct ast_filestream * | fs | ) | [static] |
Definition at line 132 of file format_g719.c.
References BYTES_TO_SAMPLES, and ast_filestream::f.
00133 { 00134 return BYTES_TO_SAMPLES(ftello(fs->f)); 00135 }
static int g719trunc | ( | struct ast_filestream * | fs | ) | [static] |
Definition at line 116 of file format_g719.c.
References ast_log(), AST_LOG_WARNING, errno, and ast_filestream::f.
00117 { 00118 int fd; 00119 off_t cur; 00120 00121 if ((fd = fileno(fs->f)) < 0) { 00122 ast_log(AST_LOG_WARNING, "Unable to determine file descriptor for g719 filestream %p: %s\n", fs, strerror(errno)); 00123 return -1; 00124 } 00125 if ((cur = ftello(fs->f)) < 0) { 00126 ast_log(AST_LOG_WARNING, "Unable to determine current position in g719 filestream %p: %s\n", fs, strerror(errno)); 00127 return -1; 00128 } 00129 return ftruncate(fd, cur); 00130 }
static int g719write | ( | struct ast_filestream * | fs, | |
struct ast_frame * | f | |||
) | [static] |
Definition at line 60 of file format_g719.c.
References AST_FORMAT_G719, AST_FRAME_VOICE, ast_getformatname(), ast_log(), errno, ast_filestream::f, f, and LOG_WARNING.
00061 { 00062 int res; 00063 00064 if (f->frametype != AST_FRAME_VOICE) { 00065 ast_log(LOG_WARNING, "Asked to write non-voice frame!\n"); 00066 return -1; 00067 } 00068 if (f->subclass.codec != AST_FORMAT_G719) { 00069 ast_log(LOG_WARNING, "Asked to write non-G.719 frame (%s)!\n", ast_getformatname(f->subclass.codec)); 00070 return -1; 00071 } 00072 if ((res = fwrite(f->data.ptr, 1, f->datalen, fs->f)) != f->datalen) { 00073 ast_log(LOG_WARNING, "Bad write (%d/%d): %s\n", res, f->datalen, strerror(errno)); 00074 return -1; 00075 } 00076 return 0; 00077 }
static int load_module | ( | void | ) | [static] |
Definition at line 149 of file format_g719.c.
References ast_format_register, AST_MODULE_LOAD_DECLINE, AST_MODULE_LOAD_SUCCESS, and g719_f.
00150 { 00151 if (ast_format_register(&g719_f)) 00152 return AST_MODULE_LOAD_DECLINE; 00153 00154 return AST_MODULE_LOAD_SUCCESS; 00155 }
static int unload_module | ( | void | ) | [static] |
Definition at line 157 of file format_g719.c.
References ast_format_unregister(), g719_f, and ast_format::name.
00158 { 00159 return ast_format_unregister(g719_f.name); 00160 }
struct ast_module_info __mod_info = { .name = AST_MODULE, .flags = AST_MODFLAG_LOAD_ORDER , .description = "ITU G.719" , .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 = "ac1f6a56484a8820659555499174e588" , .load = load_module, .unload = unload_module, .load_pri = AST_MODPRI_APP_DEPEND } [static] |
Definition at line 166 of file format_g719.c.
struct ast_module_info* ast_module_info = &__mod_info [static] |
Definition at line 166 of file format_g719.c.
struct ast_format g719_f [static] |