Old-style G.723.1 frame/timestamp format. More...
Go to the source code of this file.
Defines | |
#define | G723_MAX_SIZE 1024 |
Functions | |
static void | __reg_module (void) |
static void | __unreg_module (void) |
static struct ast_frame * | g723_read (struct ast_filestream *s, int *whennext) |
static int | g723_seek (struct ast_filestream *fs, off_t sample_offset, int whence) |
static off_t | g723_tell (struct ast_filestream *fs) |
static int | g723_trunc (struct ast_filestream *fs) |
static int | g723_write (struct ast_filestream *s, struct ast_frame *f) |
static int | load_module (void) |
static int | unload_module (void) |
Variables | |
static struct ast_module_info __MODULE_INFO_SECTION | __mod_info = { __MODULE_INFO_GLOBALS .name = AST_MODULE, .flags = AST_MODFLAG_LOAD_ORDER , .description = "G.723.1 Simple Timestamp File Format" , .key = ASTERISK_GPL_KEY , .buildopt_sum = AST_BUILDOPT_SUM, .load = load_module, .unload = unload_module, .load_pri = 10, } |
static struct ast_module_info * | ast_module_info = &__mod_info |
static struct ast_format | g723_1_f |
Old-style G.723.1 frame/timestamp format.
Definition in file format_g723.c.
#define G723_MAX_SIZE 1024 |
Definition at line 35 of file format_g723.c.
Referenced by g723_read().
static void __reg_module | ( | void | ) | [static] |
Definition at line 156 of file format_g723.c.
static void __unreg_module | ( | void | ) | [static] |
Definition at line 156 of file format_g723.c.
static struct ast_frame* g723_read | ( | struct ast_filestream * | s, |
int * | whennext | ||
) | [static, read] |
Definition at line 37 of file format_g723.c.
References AST_FORMAT_G723_1, AST_FRAME_SET_BUFFER, AST_FRAME_VOICE, AST_FRIENDLY_OFFSET, ast_log(), ast_filestream::buf, ast_frame::data, ast_frame::datalen, errno, ast_filestream::f, ast_filestream::fr, ast_frame::frametype, G723_MAX_SIZE, LOG_WARNING, ast_frame::mallocd, ast_frame::ptr, ast_frame::samples, and ast_frame::subclass.
{ unsigned short size; int res; int delay; /* Read the delay for the next packet, and schedule again if necessary */ /* XXX is this ignored ? */ if (fread(&delay, 1, 4, s->f) == 4) delay = ntohl(delay); else delay = -1; if (fread(&size, 1, 2, s->f) != 2) { /* Out of data, or the file is no longer valid. In any case go ahead and stop the stream */ return NULL; } /* Looks like we have a frame to read from here */ size = ntohs(size); if (size > G723_MAX_SIZE) { ast_log(LOG_WARNING, "Size %d is invalid\n", size); /* The file is apparently no longer any good, as we shouldn't ever get frames even close to this size. */ return NULL; } /* Read the data into the buffer */ s->fr.frametype = AST_FRAME_VOICE; s->fr.subclass = AST_FORMAT_G723_1; s->fr.mallocd = 0; AST_FRAME_SET_BUFFER(&s->fr, s->buf, AST_FRIENDLY_OFFSET, size); if ((res = fread(s->fr.data.ptr, 1, s->fr.datalen, s->f)) != size) { ast_log(LOG_WARNING, "Short read (%d of %d bytes) (%s)!\n", res, size, strerror(errno)); return NULL; } *whennext = s->fr.samples = 240; return &s->fr; }
static int g723_seek | ( | struct ast_filestream * | fs, |
off_t | sample_offset, | ||
int | whence | ||
) | [static] |
Definition at line 110 of file format_g723.c.
{
return -1;
}
static off_t g723_tell | ( | struct ast_filestream * | fs | ) | [static] |
Definition at line 123 of file format_g723.c.
{
return -1;
}
static int g723_trunc | ( | struct ast_filestream * | fs | ) | [static] |
Definition at line 115 of file format_g723.c.
References ast_filestream::f.
static int g723_write | ( | struct ast_filestream * | s, |
struct ast_frame * | f | ||
) | [static] |
Definition at line 75 of file format_g723.c.
References AST_FORMAT_G723_1, AST_FRAME_VOICE, ast_log(), ast_frame::data, ast_frame::datalen, errno, ast_filestream::f, ast_frame::frametype, fwrite, LOG_WARNING, ast_frame::ptr, and ast_frame::subclass.
{ uint32_t delay; uint16_t size; int res; /* XXX there used to be a check s->fr means a read stream */ if (f->frametype != AST_FRAME_VOICE) { ast_log(LOG_WARNING, "Asked to write non-voice frame!\n"); return -1; } if (f->subclass != AST_FORMAT_G723_1) { ast_log(LOG_WARNING, "Asked to write non-g723 frame!\n"); return -1; } delay = 0; if (f->datalen <= 0) { ast_log(LOG_WARNING, "Short frame ignored (%d bytes long?)\n", f->datalen); return 0; } if ((res = fwrite(&delay, 1, 4, s->f)) != 4) { ast_log(LOG_WARNING, "Unable to write delay: res=%d (%s)\n", res, strerror(errno)); return -1; } size = htons(f->datalen); if ((res = fwrite(&size, 1, 2, s->f)) != 2) { ast_log(LOG_WARNING, "Unable to write size: res=%d (%s)\n", res, strerror(errno)); return -1; } if ((res = fwrite(f->data.ptr, 1, f->datalen, s->f)) != f->datalen) { ast_log(LOG_WARNING, "Unable to write frame: res=%d (%s)\n", res, strerror(errno)); return -1; } return 0; }
static int load_module | ( | void | ) | [static] |
Definition at line 140 of file format_g723.c.
References ast_format_register, AST_MODULE_LOAD_FAILURE, and AST_MODULE_LOAD_SUCCESS.
{ if (ast_format_register(&g723_1_f)) return AST_MODULE_LOAD_FAILURE; return AST_MODULE_LOAD_SUCCESS; }
static int unload_module | ( | void | ) | [static] |
Definition at line 147 of file format_g723.c.
References ast_format_unregister(), and ast_format::name.
{ return ast_format_unregister(g723_1_f.name); }
struct ast_module_info __MODULE_INFO_SECTION __mod_info = { __MODULE_INFO_GLOBALS .name = AST_MODULE, .flags = AST_MODFLAG_LOAD_ORDER , .description = "G.723.1 Simple Timestamp File Format" , .key = ASTERISK_GPL_KEY , .buildopt_sum = AST_BUILDOPT_SUM, .load = load_module, .unload = unload_module, .load_pri = 10, } [static] |
Definition at line 156 of file format_g723.c.
struct ast_module_info* ast_module_info = &__mod_info [static] |
Definition at line 156 of file format_g723.c.
struct ast_format g723_1_f [static] |
Definition at line 128 of file format_g723.c.