Headerless G.726 (16/24/32/40kbps) data format for Asterisk. More...
#include "asterisk.h"
#include "asterisk/mod_format.h"
#include "asterisk/module.h"
#include "asterisk/endian.h"
Go to the source code of this file.
Data Structures | |
struct | g726_desc |
Defines | |
#define | BUF_SIZE (5*FRAME_TIME) |
#define | FRAME_TIME 10 |
#define | RATE_16 3 |
#define | RATE_24 2 |
#define | RATE_32 1 |
#define | RATE_40 0 |
Functions | |
AST_MODULE_INFO (ASTERISK_GPL_KEY, AST_MODFLAG_LOAD_ORDER,"Raw G.726 (16/24/32/40kbps) data",.load=load_module,.unload=unload_module,.load_pri=AST_MODPRI_APP_DEPEND) | |
static int | g726_16_open (struct ast_filestream *s) |
static int | g726_16_rewrite (struct ast_filestream *s, const char *comment) |
static int | g726_24_open (struct ast_filestream *s) |
static int | g726_24_rewrite (struct ast_filestream *s, const char *comment) |
static int | g726_32_open (struct ast_filestream *s) |
static int | g726_32_rewrite (struct ast_filestream *s, const char *comment) |
static int | g726_40_open (struct ast_filestream *s) |
static int | g726_40_rewrite (struct ast_filestream *s, const char *comment) |
static int | g726_open (struct ast_filestream *tmp, int rate) |
static struct ast_frame * | g726_read (struct ast_filestream *s, int *whennext) |
static int | g726_seek (struct ast_filestream *fs, off_t sample_offset, int whence) |
static off_t | g726_tell (struct ast_filestream *fs) |
static int | g726_trunc (struct ast_filestream *fs) |
static int | g726_write (struct ast_filestream *s, struct ast_frame *f) |
static int | load_module (void) |
static int | unload_module (void) |
Variables | |
static struct ast_format | f [] |
static int | frame_size [4] |
Headerless G.726 (16/24/32/40kbps) data format for Asterisk.
File name extensions:
Definition in file format_g726.c.
#define BUF_SIZE (5*FRAME_TIME) |
Definition at line 51 of file format_g726.c.
#define FRAME_TIME 10 |
Definition at line 49 of file format_g726.c.
Referenced by g726_read().
#define RATE_16 3 |
Definition at line 46 of file format_g726.c.
Referenced by g726_16_open(), and g726_16_rewrite().
#define RATE_24 2 |
Definition at line 45 of file format_g726.c.
Referenced by g726_24_open(), and g726_24_rewrite().
#define RATE_32 1 |
Definition at line 44 of file format_g726.c.
Referenced by g726_32_open(), and g726_32_rewrite().
#define RATE_40 0 |
Definition at line 43 of file format_g726.c.
Referenced by g726_40_open(), and g726_40_rewrite().
AST_MODULE_INFO | ( | ASTERISK_GPL_KEY | , | |
AST_MODFLAG_LOAD_ORDER | , | |||
"Raw G.726 (16/24/32/40kbps) data" | , | |||
. | load = load_module , |
|||
. | unload = unload_module , |
|||
. | load_pri = AST_MODPRI_APP_DEPEND | |||
) |
static int g726_16_open | ( | struct ast_filestream * | s | ) | [static] |
Definition at line 90 of file format_g726.c.
References g726_open(), and RATE_16.
static int g726_16_rewrite | ( | struct ast_filestream * | s, | |
const char * | comment | |||
) | [static] |
Definition at line 110 of file format_g726.c.
References g726_open(), and RATE_16.
static int g726_24_open | ( | struct ast_filestream * | s | ) | [static] |
Definition at line 85 of file format_g726.c.
References g726_open(), and RATE_24.
static int g726_24_rewrite | ( | struct ast_filestream * | s, | |
const char * | comment | |||
) | [static] |
Definition at line 105 of file format_g726.c.
References g726_open(), and RATE_24.
static int g726_32_open | ( | struct ast_filestream * | s | ) | [static] |
Definition at line 80 of file format_g726.c.
References g726_open(), and RATE_32.
static int g726_32_rewrite | ( | struct ast_filestream * | s, | |
const char * | comment | |||
) | [static] |
Definition at line 100 of file format_g726.c.
References g726_open(), and RATE_32.
static int g726_40_open | ( | struct ast_filestream * | s | ) | [static] |
Definition at line 75 of file format_g726.c.
References g726_open(), and RATE_40.
static int g726_40_rewrite | ( | struct ast_filestream * | s, | |
const char * | comment | |||
) | [static] |
Definition at line 95 of file format_g726.c.
References g726_open(), and RATE_40.
static int g726_open | ( | struct ast_filestream * | tmp, | |
int | rate | |||
) | [static] |
Definition at line 67 of file format_g726.c.
References ast_filestream::_private, ast_debug, and g726_desc::rate.
Referenced by g726_16_open(), g726_16_rewrite(), g726_24_open(), g726_24_rewrite(), g726_32_open(), g726_32_rewrite(), g726_40_open(), and g726_40_rewrite().
static struct ast_frame* g726_read | ( | struct ast_filestream * | s, | |
int * | whennext | |||
) | [static, read] |
Definition at line 119 of file format_g726.c.
References ast_filestream::_private, AST_FORMAT_G726, AST_FRAME_SET_BUFFER, AST_FRAME_VOICE, AST_FRIENDLY_OFFSET, ast_log(), ast_filestream::buf, ast_frame_subclass::codec, ast_frame::data, ast_frame::datalen, errno, ast_filestream::f, ast_filestream::fr, FRAME_TIME, ast_frame::frametype, LOG_WARNING, ast_frame::mallocd, ast_frame::ptr, g726_desc::rate, ast_frame::samples, and ast_frame::subclass.
00120 { 00121 int res; 00122 struct g726_desc *fs = (struct g726_desc *)s->_private; 00123 00124 /* Send a frame from the file to the appropriate channel */ 00125 s->fr.frametype = AST_FRAME_VOICE; 00126 s->fr.subclass.codec = AST_FORMAT_G726; 00127 s->fr.mallocd = 0; 00128 AST_FRAME_SET_BUFFER(&s->fr, s->buf, AST_FRIENDLY_OFFSET, frame_size[fs->rate]); 00129 s->fr.samples = 8 * FRAME_TIME; 00130 if ((res = fread(s->fr.data.ptr, 1, s->fr.datalen, s->f)) != s->fr.datalen) { 00131 if (res) 00132 ast_log(LOG_WARNING, "Short read (%d) (%s)!\n", res, strerror(errno)); 00133 return NULL; 00134 } 00135 *whennext = s->fr.samples; 00136 return &s->fr; 00137 }
static int g726_seek | ( | struct ast_filestream * | fs, | |
off_t | sample_offset, | |||
int | whence | |||
) | [static] |
Definition at line 166 of file format_g726.c.
static off_t g726_tell | ( | struct ast_filestream * | fs | ) | [static] |
Definition at line 176 of file format_g726.c.
static int g726_trunc | ( | struct ast_filestream * | fs | ) | [static] |
Definition at line 171 of file format_g726.c.
static int g726_write | ( | struct ast_filestream * | s, | |
struct ast_frame * | f | |||
) | [static] |
Definition at line 139 of file format_g726.c.
References ast_filestream::_private, AST_FORMAT_G726, AST_FRAME_VOICE, ast_getformatname(), ast_log(), ast_frame_subclass::codec, ast_frame::data, ast_frame::datalen, errno, ast_filestream::f, ast_frame::frametype, LOG_WARNING, ast_frame::ptr, g726_desc::rate, and ast_frame::subclass.
00140 { 00141 int res; 00142 struct g726_desc *fs = (struct g726_desc *)s->_private; 00143 00144 if (f->frametype != AST_FRAME_VOICE) { 00145 ast_log(LOG_WARNING, "Asked to write non-voice frame!\n"); 00146 return -1; 00147 } 00148 if (f->subclass.codec != AST_FORMAT_G726) { 00149 ast_log(LOG_WARNING, "Asked to write non-G726 frame (%s)!\n", 00150 ast_getformatname(f->subclass.codec)); 00151 return -1; 00152 } 00153 if (f->datalen % frame_size[fs->rate]) { 00154 ast_log(LOG_WARNING, "Invalid data length %d, should be multiple of %d\n", 00155 f->datalen, frame_size[fs->rate]); 00156 return -1; 00157 } 00158 if ((res = fwrite(f->data.ptr, 1, f->datalen, s->f)) != f->datalen) { 00159 ast_log(LOG_WARNING, "Bad write (%d/%d): %s\n", 00160 res, frame_size[fs->rate], strerror(errno)); 00161 return -1; 00162 } 00163 return 0; 00164 }
static int load_module | ( | void | ) | [static] |
Definition at line 241 of file format_g726.c.
References ast_format_register, ast_log(), AST_MODULE_LOAD_FAILURE, AST_MODULE_LOAD_SUCCESS, ast_format::format, LOG_WARNING, and name.
00242 { 00243 int i; 00244 00245 for (i = 0; f[i].format ; i++) { 00246 if (ast_format_register(&f[i])) { /* errors are fatal */ 00247 ast_log(LOG_WARNING, "Failed to register format %s.\n", f[i].name); 00248 return AST_MODULE_LOAD_FAILURE; 00249 } 00250 } 00251 return AST_MODULE_LOAD_SUCCESS; 00252 }
static int unload_module | ( | void | ) | [static] |
Definition at line 254 of file format_g726.c.
References ast_format_unregister(), ast_log(), ast_format::format, LOG_WARNING, and name.
00255 { 00256 int i; 00257 00258 for (i = 0; f[i].format ; i++) { 00259 if (ast_format_unregister(f[i].name)) 00260 ast_log(LOG_WARNING, "Failed to unregister format %s.\n", f[i].name); 00261 } 00262 return(0); 00263 }
struct ast_format f[] [static] |
Definition at line 181 of file format_g726.c.
Referenced by __adsi_transmit_messages(), __analog_handle_event(), __analog_ss_thread(), __ast_play_and_record(), __ast_queue_frame(), __attempt_transmit(), agent_ack_sleep(), agent_read(), alloc_profile(), analog_exception(), analog_handle_dtmf(), app_exec(), ast_autoservice_stop(), ast_bridge_call(), ast_config_text_file_save(), ast_el_read_history(), ast_filehelper(), ast_format_str_reduce(), ast_frame_header_new(), ast_jb_destroy(), ast_read_image(), ast_readfile(), ast_rtcp_read(), ast_rtp_read(), ast_rtp_write(), ast_send_image(), ast_slinfactory_destroy(), ast_trans_frameout(), ast_udptl_bridge(), ast_ulaw_init(), ast_writefile(), async_agi_read_frame(), async_wait(), auth_exec(), autoservice_run(), cache_cmp(), calc_cost(), channel_spy(), check_bridge(), close_logger(), compile_script(), conf_flush(), conf_run(), config_text_file_load(), create_video_frame(), dictate_exec(), disa_exec(), do_waiting(), echo_exec(), eivr_comm(), execif_exec(), feature_request_and_dial(), filestream_destructor(), find_cache(), fn_wrapper(), frame_cache_cleanup(), function_realtime_store(), gen_generate(), gen_readframe(), generic_fax_exec(), get_bit_raw(), gtalk_rtp_read(), h261_encap(), h263_encap(), h263p_encap(), h264_encap(), handle_cli_core_show_file_formats(), handle_cli_file_convert(), handle_recordfile(), handle_request_info(), http_post_callback(), iax2_bridge(), iax2_trunk_queue(), ices_exec(), isAnsweringMachine(), jack_exec(), jb_empty_and_reset_adaptive(), jb_get_and_deliver(), jingle_rtp_read(), key_history(), lintoadpcm_frameout(), load_file(), load_pktccops_config(), lua_read_extensions_file(), main(), manage_parked_call(), measurenoise(), mgcp_read(), mgcp_rtp_read(), misdn_bridge(), misdn_lib_nt_debug_init(), moh_files_generator(), moh_files_readframe(), mp3_exec(), mpeg4_encap(), multicast_rtp_write(), my_handle_dtmf(), NBScat_exec(), oh323_rtp_read(), op_func(), oss_read(), parse(), process_ast_dsp(), process_dtmf_cisco(), process_dtmf_rfc2833(), readdirqueue(), receive_dtmf_digits(), receive_message(), record_exec(), recordthread(), reload_followme(), reload_logger(), remove_from_queue(), run_agi(), safe_append(), scan_service(), send_string(), send_tone_burst(), send_waveform_to_channel(), sendurl_exec(), session_destroy(), show_history(), sip_rtp_read(), skinny_rtp_read(), sms_handleincoming_proto2(), sms_hexdump(), spandsp_fax_read(), speech_background(), spy_generate(), strip_quotes(), t38_tx_packet_handler(), testclient_exec(), testserver_exec(), try_load_key(), udptlread(), unistim_rtp_read(), unload_module(), vnak_retransmit(), wait_for_answer(), wait_for_hangup(), wait_for_winner(), waitforring_exec(), write_history(), and writefile().
int frame_size[4] [static] |
Definition at line 53 of file format_g726.c.
Referenced by local_attended_transfer(), and masquerade_colp_transfer().